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-rw-r--r--drivers/usb/cdns3/cdns3-gadget.c73
-rw-r--r--drivers/usb/cdns3/cdns3-gadget.h3
-rw-r--r--drivers/usb/cdns3/cdns3-imx.c34
-rw-r--r--drivers/usb/cdns3/cdns3-plat.c23
-rw-r--r--drivers/usb/cdns3/cdns3-trace.h5
-rw-r--r--drivers/usb/cdns3/cdnsp-gadget.c17
-rw-r--r--drivers/usb/cdns3/cdnsp-gadget.h1
-rw-r--r--drivers/usb/cdns3/cdnsp-mem.c3
-rw-r--r--drivers/usb/cdns3/core.c29
-rw-r--r--drivers/usb/cdns3/drd.c15
-rw-r--r--drivers/usb/cdns3/drd.h2
-rw-r--r--drivers/usb/chipidea/ci_hdrc_tegra.c8
-rw-r--r--drivers/usb/chipidea/host.c2
-rw-r--r--drivers/usb/class/cdc-acm.c33
-rw-r--r--drivers/usb/common/common.c76
-rw-r--r--drivers/usb/common/debug.c22
-rw-r--r--drivers/usb/core/devices.c21
-rw-r--r--drivers/usb/core/driver.c10
-rw-r--r--drivers/usb/core/endpoint.c35
-rw-r--r--drivers/usb/core/hcd.c6
-rw-r--r--drivers/usb/core/hub.c99
-rw-r--r--drivers/usb/core/hub.h6
-rw-r--r--drivers/usb/core/quirks.c4
-rw-r--r--drivers/usb/core/sysfs.c5
-rw-r--r--drivers/usb/core/usb.c54
-rw-r--r--drivers/usb/dwc2/core.c138
-rw-r--r--drivers/usb/dwc2/core.h49
-rw-r--r--drivers/usb/dwc2/core_intr.c279
-rw-r--r--drivers/usb/dwc2/debugfs.c2
-rw-r--r--drivers/usb/dwc2/gadget.c223
-rw-r--r--drivers/usb/dwc2/hcd.c645
-rw-r--r--drivers/usb/dwc2/hcd_queue.c2
-rw-r--r--drivers/usb/dwc2/hw.h1
-rw-r--r--drivers/usb/dwc2/params.c18
-rw-r--r--drivers/usb/dwc2/platform.c36
-rw-r--r--drivers/usb/dwc3/Kconfig9
-rw-r--r--drivers/usb/dwc3/Makefile1
-rw-r--r--drivers/usb/dwc3/core.c54
-rw-r--r--drivers/usb/dwc3/core.h53
-rw-r--r--drivers/usb/dwc3/debug.h2
-rw-r--r--drivers/usb/dwc3/debugfs.c14
-rw-r--r--drivers/usb/dwc3/dwc3-exynos.c2
-rw-r--r--drivers/usb/dwc3/dwc3-imx8mp.c2
-rw-r--r--drivers/usb/dwc3/dwc3-keystone.c2
-rw-r--r--drivers/usb/dwc3/dwc3-of-simple.c1
-rw-r--r--drivers/usb/dwc3/dwc3-pci.c6
-rw-r--r--drivers/usb/dwc3/dwc3-qcom.c5
-rw-r--r--drivers/usb/dwc3/dwc3-st.c2
-rw-r--r--drivers/usb/dwc3/dwc3-xilinx.c337
-rw-r--r--drivers/usb/dwc3/gadget.c125
-rw-r--r--drivers/usb/dwc3/gadget.h6
-rw-r--r--drivers/usb/dwc3/io.h2
-rw-r--r--drivers/usb/dwc3/trace.c2
-rw-r--r--drivers/usb/dwc3/trace.h8
-rw-r--r--drivers/usb/gadget/config.c4
-rw-r--r--drivers/usb/gadget/function/f_fs.c14
-rw-r--r--drivers/usb/gadget/function/f_mass_storage.c2
-rw-r--r--drivers/usb/gadget/function/f_printer.c2
-rw-r--r--drivers/usb/gadget/function/f_tcm.c36
-rw-r--r--drivers/usb/gadget/function/f_uac1.c272
-rw-r--r--drivers/usb/gadget/function/f_uac2.c263
-rw-r--r--drivers/usb/gadget/function/f_uvc.c8
-rw-r--r--drivers/usb/gadget/function/u_audio.c6
-rw-r--r--drivers/usb/gadget/function/uvc_configfs.c2
-rw-r--r--drivers/usb/gadget/legacy/inode.c3
-rw-r--r--drivers/usb/gadget/legacy/mass_storage.c4
-rw-r--r--drivers/usb/gadget/legacy/multi.c14
-rw-r--r--drivers/usb/gadget/legacy/webcam.c3
-rw-r--r--drivers/usb/gadget/udc/aspeed-vhub/core.c3
-rw-r--r--drivers/usb/gadget/udc/aspeed-vhub/epn.c2
-rw-r--r--drivers/usb/gadget/udc/dummy_hcd.c25
-rw-r--r--drivers/usb/gadget/udc/fotg210-udc.c28
-rw-r--r--drivers/usb/gadget/udc/net2272.c3
-rw-r--r--drivers/usb/gadget/udc/pch_udc.c241
-rw-r--r--drivers/usb/gadget/udc/r8a66597-udc.c2
-rw-r--r--drivers/usb/gadget/udc/s3c2410_udc.c24
-rw-r--r--drivers/usb/gadget/udc/snps_udc_plat.c4
-rw-r--r--drivers/usb/gadget/udc/tegra-xudc.c2
-rw-r--r--drivers/usb/host/Kconfig1
-rw-r--r--drivers/usb/host/Makefile6
-rw-r--r--drivers/usb/host/ehci-hcd.c15
-rw-r--r--drivers/usb/host/ehci-hub.c4
-rw-r--r--drivers/usb/host/ehci-pci.c3
-rw-r--r--drivers/usb/host/ehci-platform.c5
-rw-r--r--drivers/usb/host/ehci.h1
-rw-r--r--drivers/usb/host/fotg210-hcd.c12
-rw-r--r--drivers/usb/host/isp116x-hcd.c7
-rw-r--r--drivers/usb/host/isp116x.h1
-rw-r--r--drivers/usb/host/isp1362-hcd.c8
-rw-r--r--drivers/usb/host/isp1362.h1
-rw-r--r--drivers/usb/host/sl811-hcd.c16
-rw-r--r--drivers/usb/host/sl811.h1
-rw-r--r--drivers/usb/host/sl811_cs.c2
-rw-r--r--drivers/usb/host/u132-hcd.c3
-rw-r--r--drivers/usb/host/uhci-hcd.c12
-rw-r--r--drivers/usb/host/uhci-hcd.h4
-rw-r--r--drivers/usb/host/xhci-hub.c320
-rw-r--r--drivers/usb/host/xhci-mem.c14
-rw-r--r--drivers/usb/host/xhci-mtk-sch.c369
-rw-r--r--drivers/usb/host/xhci-mtk.c289
-rw-r--r--drivers/usb/host/xhci-mtk.h60
-rw-r--r--drivers/usb/host/xhci-ring.c48
-rw-r--r--drivers/usb/host/xhci.c46
-rw-r--r--drivers/usb/host/xhci.h8
-rw-r--r--drivers/usb/misc/adutux.c6
-rw-r--r--drivers/usb/misc/ehset.c76
-rw-r--r--drivers/usb/misc/ezusb.c16
-rw-r--r--drivers/usb/misc/usbsevseg.c60
-rw-r--r--drivers/usb/mtu3/mtu3_host.c30
-rw-r--r--drivers/usb/mtu3/mtu3_plat.c7
-rw-r--r--drivers/usb/musb/musb_core.c2
-rw-r--r--drivers/usb/musb/musb_core.h4
-rw-r--r--drivers/usb/renesas_usbhs/fifo.c4
-rw-r--r--drivers/usb/roles/class.c2
-rw-r--r--drivers/usb/serial/ark3116.c13
-rw-r--r--drivers/usb/serial/cp210x.c31
-rw-r--r--drivers/usb/serial/f81232.c12
-rw-r--r--drivers/usb/serial/f81534.c7
-rw-r--r--drivers/usb/serial/ftdi_sio.c35
-rw-r--r--drivers/usb/serial/io_edgeport.c67
-rw-r--r--drivers/usb/serial/io_edgeport.h68
-rw-r--r--drivers/usb/serial/io_ti.c210
-rw-r--r--drivers/usb/serial/io_ti.h38
-rw-r--r--drivers/usb/serial/iuu_phoenix.c4
-rw-r--r--drivers/usb/serial/keyspan.c20
-rw-r--r--drivers/usb/serial/metro-usb.c4
-rw-r--r--drivers/usb/serial/mos7720.c20
-rw-r--r--drivers/usb/serial/mos7840.c23
-rw-r--r--drivers/usb/serial/opticon.c18
-rw-r--r--drivers/usb/serial/option.c2
-rw-r--r--drivers/usb/serial/pl2303.c188
-rw-r--r--drivers/usb/serial/quatech2.c16
-rw-r--r--drivers/usb/serial/ssu100.c16
-rw-r--r--drivers/usb/serial/ti_usb_3410_5052.c213
-rw-r--r--drivers/usb/serial/upd78f0730.c7
-rw-r--r--drivers/usb/serial/usb-serial.c226
-rw-r--r--drivers/usb/serial/usb-wwan.h4
-rw-r--r--drivers/usb/serial/usb_wwan.c45
-rw-r--r--drivers/usb/serial/whiteheat.c17
-rw-r--r--drivers/usb/serial/xr_serial.c754
-rw-r--r--drivers/usb/storage/datafab.c1
-rw-r--r--drivers/usb/typec/Kconfig15
-rw-r--r--drivers/usb/typec/Makefile4
-rw-r--r--drivers/usb/typec/bus.c2
-rw-r--r--drivers/usb/typec/bus.h19
-rw-r--r--drivers/usb/typec/class.c155
-rw-r--r--drivers/usb/typec/class.h85
-rw-r--r--drivers/usb/typec/mux.c4
-rw-r--r--drivers/usb/typec/mux.h21
-rw-r--r--drivers/usb/typec/port-mapper.c279
-rw-r--r--drivers/usb/typec/stusb160x.c4
-rw-r--r--drivers/usb/typec/tcpm/fusb302.c5
-rw-r--r--drivers/usb/typec/tcpm/tcpci.c17
-rw-r--r--drivers/usb/typec/tcpm/tcpci.h16
-rw-r--r--drivers/usb/typec/tcpm/tcpci_maxim.c2
-rw-r--r--drivers/usb/typec/tcpm/tcpm.c233
-rw-r--r--drivers/usb/typec/tipd/Kconfig12
-rw-r--r--drivers/usb/typec/tipd/Makefile6
-rw-r--r--drivers/usb/typec/tipd/core.c (renamed from drivers/usb/typec/tps6598x.c)68
-rw-r--r--drivers/usb/typec/tipd/tps6598x.h189
-rw-r--r--drivers/usb/typec/tipd/trace.c9
-rw-r--r--drivers/usb/typec/tipd/trace.h283
-rw-r--r--drivers/usb/typec/ucsi/ucsi.c2
-rw-r--r--drivers/usb/usbip/usbip_common.h1
-rw-r--r--drivers/usb/usbip/vudc_sysfs.c2
165 files changed, 5837 insertions, 2697 deletions
diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c
index 582bfeceedb4..9b1bd417cec0 100644
--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -59,6 +59,7 @@
#include <linux/dma-mapping.h>
#include <linux/usb/gadget.h>
#include <linux/module.h>
+#include <linux/dmapool.h>
#include <linux/iopoll.h>
#include "core.h"
@@ -190,29 +191,13 @@ dma_addr_t cdns3_trb_virt_to_dma(struct cdns3_endpoint *priv_ep,
return priv_ep->trb_pool_dma + offset;
}
-static int cdns3_ring_size(struct cdns3_endpoint *priv_ep)
-{
- switch (priv_ep->type) {
- case USB_ENDPOINT_XFER_ISOC:
- return TRB_ISO_RING_SIZE;
- case USB_ENDPOINT_XFER_CONTROL:
- return TRB_CTRL_RING_SIZE;
- default:
- if (priv_ep->use_streams)
- return TRB_STREAM_RING_SIZE;
- else
- return TRB_RING_SIZE;
- }
-}
-
static void cdns3_free_trb_pool(struct cdns3_endpoint *priv_ep)
{
struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
if (priv_ep->trb_pool) {
- dma_free_coherent(priv_dev->sysdev,
- cdns3_ring_size(priv_ep),
- priv_ep->trb_pool, priv_ep->trb_pool_dma);
+ dma_pool_free(priv_dev->eps_dma_pool,
+ priv_ep->trb_pool, priv_ep->trb_pool_dma);
priv_ep->trb_pool = NULL;
}
}
@@ -226,7 +211,7 @@ static void cdns3_free_trb_pool(struct cdns3_endpoint *priv_ep)
int cdns3_allocate_trb_pool(struct cdns3_endpoint *priv_ep)
{
struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
- int ring_size = cdns3_ring_size(priv_ep);
+ int ring_size = TRB_RING_SIZE;
int num_trbs = ring_size / TRB_SIZE;
struct cdns3_trb *link_trb;
@@ -234,10 +219,10 @@ int cdns3_allocate_trb_pool(struct cdns3_endpoint *priv_ep)
cdns3_free_trb_pool(priv_ep);
if (!priv_ep->trb_pool) {
- priv_ep->trb_pool = dma_alloc_coherent(priv_dev->sysdev,
- ring_size,
- &priv_ep->trb_pool_dma,
- GFP_DMA32 | GFP_ATOMIC);
+ priv_ep->trb_pool = dma_pool_alloc(priv_dev->eps_dma_pool,
+ GFP_DMA32 | GFP_ATOMIC,
+ &priv_ep->trb_pool_dma);
+
if (!priv_ep->trb_pool)
return -ENOMEM;
@@ -834,9 +819,15 @@ void cdns3_gadget_giveback(struct cdns3_endpoint *priv_ep,
priv_ep->dir);
if ((priv_req->flags & REQUEST_UNALIGNED) &&
- priv_ep->dir == USB_DIR_OUT && !request->status)
+ priv_ep->dir == USB_DIR_OUT && !request->status) {
+ /* Make DMA buffer CPU accessible */
+ dma_sync_single_for_cpu(priv_dev->sysdev,
+ priv_req->aligned_buf->dma,
+ priv_req->aligned_buf->size,
+ priv_req->aligned_buf->dir);
memcpy(request->buf, priv_req->aligned_buf->buf,
request->length);
+ }
priv_req->flags &= ~(REQUEST_PENDING | REQUEST_UNALIGNED);
/* All TRBs have finished, clear the counter */
@@ -898,8 +889,8 @@ static void cdns3_free_aligned_request_buf(struct work_struct *work)
* interrupts.
*/
spin_unlock_irqrestore(&priv_dev->lock, flags);
- dma_free_coherent(priv_dev->sysdev, buf->size,
- buf->buf, buf->dma);
+ dma_free_noncoherent(priv_dev->sysdev, buf->size,
+ buf->buf, buf->dma, buf->dir);
kfree(buf);
spin_lock_irqsave(&priv_dev->lock, flags);
}
@@ -926,10 +917,13 @@ static int cdns3_prepare_aligned_request_buf(struct cdns3_request *priv_req)
return -ENOMEM;
buf->size = priv_req->request.length;
+ buf->dir = usb_endpoint_dir_in(priv_ep->endpoint.desc) ?
+ DMA_TO_DEVICE : DMA_FROM_DEVICE;
- buf->buf = dma_alloc_coherent(priv_dev->sysdev,
+ buf->buf = dma_alloc_noncoherent(priv_dev->sysdev,
buf->size,
&buf->dma,
+ buf->dir,
GFP_ATOMIC);
if (!buf->buf) {
kfree(buf);
@@ -951,10 +945,17 @@ static int cdns3_prepare_aligned_request_buf(struct cdns3_request *priv_req)
}
if (priv_ep->dir == USB_DIR_IN) {
+ /* Make DMA buffer CPU accessible */
+ dma_sync_single_for_cpu(priv_dev->sysdev,
+ buf->dma, buf->size, buf->dir);
memcpy(buf->buf, priv_req->request.buf,
priv_req->request.length);
}
+ /* Transfer DMA buffer ownership back to device */
+ dma_sync_single_for_device(priv_dev->sysdev,
+ buf->dma, buf->size, buf->dir);
+
priv_req->flags |= REQUEST_UNALIGNED;
trace_cdns3_prepare_aligned_request(priv_req);
@@ -3103,9 +3104,10 @@ static void cdns3_gadget_exit(struct cdns *cdns)
struct cdns3_aligned_buf *buf;
buf = cdns3_next_align_buf(&priv_dev->aligned_buf_list);
- dma_free_coherent(priv_dev->sysdev, buf->size,
+ dma_free_noncoherent(priv_dev->sysdev, buf->size,
buf->buf,
- buf->dma);
+ buf->dma,
+ buf->dir);
list_del(&buf->list);
kfree(buf);
@@ -3113,6 +3115,7 @@ static void cdns3_gadget_exit(struct cdns *cdns)
dma_free_coherent(priv_dev->sysdev, 8, priv_dev->setup_buf,
priv_dev->setup_dma);
+ dma_pool_destroy(priv_dev->eps_dma_pool);
kfree(priv_dev->zlp_buf);
usb_put_gadget(&priv_dev->gadget);
@@ -3185,6 +3188,14 @@ static int cdns3_gadget_start(struct cdns *cdns)
/* initialize endpoint container */
INIT_LIST_HEAD(&priv_dev->gadget.ep_list);
INIT_LIST_HEAD(&priv_dev->aligned_buf_list);
+ priv_dev->eps_dma_pool = dma_pool_create("cdns3_eps_dma_pool",
+ priv_dev->sysdev,
+ TRB_RING_SIZE, 8, 0);
+ if (!priv_dev->eps_dma_pool) {
+ dev_err(priv_dev->dev, "Failed to create TRB dma pool\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
ret = cdns3_init_eps(priv_dev);
if (ret) {
@@ -3235,6 +3246,8 @@ err3:
err2:
cdns3_free_all_eps(priv_dev);
err1:
+ dma_pool_destroy(priv_dev->eps_dma_pool);
+
usb_put_gadget(&priv_dev->gadget);
cdns->gadget_dev = NULL;
return ret;
@@ -3304,6 +3317,8 @@ static int cdns3_gadget_resume(struct cdns *cdns, bool hibernated)
return 0;
cdns3_gadget_config(priv_dev);
+ if (hibernated)
+ writel(USB_CONF_DEVEN, &priv_dev->regs->usb_conf);
return 0;
}
diff --git a/drivers/usb/cdns3/cdns3-gadget.h b/drivers/usb/cdns3/cdns3-gadget.h
index 21fa461c518e..c5660f2c4293 100644
--- a/drivers/usb/cdns3/cdns3-gadget.h
+++ b/drivers/usb/cdns3/cdns3-gadget.h
@@ -12,6 +12,7 @@
#ifndef __LINUX_CDNS3_GADGET
#define __LINUX_CDNS3_GADGET
#include <linux/usb/gadget.h>
+#include <linux/dma-direction.h>
/*
* USBSS-DEV register interface.
@@ -1205,6 +1206,7 @@ struct cdns3_aligned_buf {
void *buf;
dma_addr_t dma;
u32 size;
+ enum dma_data_direction dir;
unsigned in_use:1;
struct list_head list;
};
@@ -1298,6 +1300,7 @@ struct cdns3_device {
struct cdns3_usb_regs __iomem *regs;
+ struct dma_pool *eps_dma_pool;
struct usb_ctrlrequest *setup_buf;
dma_addr_t setup_dma;
void *zlp_buf;
diff --git a/drivers/usb/cdns3/cdns3-imx.c b/drivers/usb/cdns3/cdns3-imx.c
index 8f88eec0b0ea..74e758dc0895 100644
--- a/drivers/usb/cdns3/cdns3-imx.c
+++ b/drivers/usb/cdns3/cdns3-imx.c
@@ -361,6 +361,39 @@ static int cdns_imx_suspend(struct device *dev)
return 0;
}
+
+
+/* Indicate if the controller was power lost before */
+static inline bool cdns_imx_is_power_lost(struct cdns_imx *data)
+{
+ u32 value;
+
+ value = cdns_imx_readl(data, USB3_CORE_CTRL1);
+ if ((value & SW_RESET_MASK) == ALL_SW_RESET)
+ return true;
+ else
+ return false;
+}
+
+static int __maybe_unused cdns_imx_system_resume(struct device *dev)
+{
+ struct cdns_imx *data = dev_get_drvdata(dev);
+ int ret;
+
+ ret = cdns_imx_resume(dev);
+ if (ret)
+ return ret;
+
+ if (cdns_imx_is_power_lost(data)) {
+ dev_dbg(dev, "resume from power lost\n");
+ ret = cdns_imx_noncore_init(data);
+ if (ret)
+ cdns_imx_suspend(dev);
+ }
+
+ return ret;
+}
+
#else
static int cdns_imx_platform_suspend(struct device *dev,
bool suspend, bool wakeup)
@@ -372,6 +405,7 @@ static int cdns_imx_platform_suspend(struct device *dev,
static const struct dev_pm_ops cdns_imx_pm_ops = {
SET_RUNTIME_PM_OPS(cdns_imx_suspend, cdns_imx_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(cdns_imx_suspend, cdns_imx_system_resume)
};
static const struct of_device_id cdns_imx_of_match[] = {
diff --git a/drivers/usb/cdns3/cdns3-plat.c b/drivers/usb/cdns3/cdns3-plat.c
index 4b18e1c6a4bb..e1deeada425c 100644
--- a/drivers/usb/cdns3/cdns3-plat.c
+++ b/drivers/usb/cdns3/cdns3-plat.c
@@ -19,6 +19,7 @@
#include "core.h"
#include "gadget-export.h"
+#include "drd.h"
static int set_phy_power_on(struct cdns *cdns)
{
@@ -236,6 +237,18 @@ static int cdns3_controller_resume(struct device *dev, pm_message_t msg)
if (!cdns->in_lpm)
return 0;
+ if (cdns_power_is_lost(cdns)) {
+ phy_exit(cdns->usb2_phy);
+ ret = phy_init(cdns->usb2_phy);
+ if (ret)
+ return ret;
+
+ phy_exit(cdns->usb3_phy);
+ ret = phy_init(cdns->usb3_phy);
+ if (ret)
+ return ret;
+ }
+
ret = set_phy_power_on(cdns);
if (ret)
return ret;
@@ -270,10 +283,18 @@ static int cdns3_plat_runtime_resume(struct device *dev)
static int cdns3_plat_suspend(struct device *dev)
{
struct cdns *cdns = dev_get_drvdata(dev);
+ int ret;
cdns_suspend(cdns);
- return cdns3_controller_suspend(dev, PMSG_SUSPEND);
+ ret = cdns3_controller_suspend(dev, PMSG_SUSPEND);
+ if (ret)
+ return ret;
+
+ if (device_may_wakeup(dev) && cdns->wakeup_irq)
+ enable_irq_wake(cdns->wakeup_irq);
+
+ return ret;
}
static int cdns3_plat_resume(struct device *dev)
diff --git a/drivers/usb/cdns3/cdns3-trace.h b/drivers/usb/cdns3/cdns3-trace.h
index 8648c7a7a9dd..7574b4a62813 100644
--- a/drivers/usb/cdns3/cdns3-trace.h
+++ b/drivers/usb/cdns3/cdns3-trace.h
@@ -214,7 +214,6 @@ DECLARE_EVENT_CLASS(cdns3_log_request,
__field(int, no_interrupt)
__field(int, start_trb)
__field(int, end_trb)
- __field(struct cdns3_trb *, start_trb_addr)
__field(int, flags)
__field(unsigned int, stream_id)
),
@@ -230,12 +229,11 @@ DECLARE_EVENT_CLASS(cdns3_log_request,
__entry->no_interrupt = req->request.no_interrupt;
__entry->start_trb = req->start_trb;
__entry->end_trb = req->end_trb;
- __entry->start_trb_addr = req->trb;
__entry->flags = req->flags;
__entry->stream_id = req->request.stream_id;
),
TP_printk("%s: req: %p, req buff %p, length: %u/%u %s%s%s, status: %d,"
- " trb: [start:%d, end:%d: virt addr %pa], flags:%x SID: %u",
+ " trb: [start:%d, end:%d], flags:%x SID: %u",
__get_str(name), __entry->req, __entry->buf, __entry->actual,
__entry->length,
__entry->zero ? "Z" : "z",
@@ -244,7 +242,6 @@ DECLARE_EVENT_CLASS(cdns3_log_request,
__entry->status,
__entry->start_trb,
__entry->end_trb,
- __entry->start_trb_addr,
__entry->flags,
__entry->stream_id
)
diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c
index d7d4bdd57f46..56707b6b0f57 100644
--- a/drivers/usb/cdns3/cdnsp-gadget.c
+++ b/drivers/usb/cdns3/cdnsp-gadget.c
@@ -727,7 +727,7 @@ int cdnsp_reset_device(struct cdnsp_device *pdev)
* are in Disabled state.
*/
for (i = 1; i < CDNSP_ENDPOINTS_NUM; ++i)
- pdev->eps[i].ep_state |= EP_STOPPED;
+ pdev->eps[i].ep_state |= EP_STOPPED | EP_UNCONFIGURED;
trace_cdnsp_handle_cmd_reset_dev(slot_ctx);
@@ -942,6 +942,7 @@ static int cdnsp_gadget_ep_enable(struct usb_ep *ep,
pep = to_cdnsp_ep(ep);
pdev = pep->pdev;
+ pep->ep_state &= ~EP_UNCONFIGURED;
if (dev_WARN_ONCE(pdev->dev, pep->ep_state & EP_ENABLED,
"%s is already enabled\n", pep->name))
@@ -1023,9 +1024,13 @@ static int cdnsp_gadget_ep_disable(struct usb_ep *ep)
goto finish;
}
- cdnsp_cmd_stop_ep(pdev, pep);
pep->ep_state |= EP_DIS_IN_RROGRESS;
- cdnsp_cmd_flush_ep(pdev, pep);
+
+ /* Endpoint was unconfigured by Reset Device command. */
+ if (!(pep->ep_state & EP_UNCONFIGURED)) {
+ cdnsp_cmd_stop_ep(pdev, pep);
+ cdnsp_cmd_flush_ep(pdev, pep);
+ }
/* Remove all queued USB requests. */
while (!list_empty(&pep->pending_list)) {
@@ -1043,10 +1048,12 @@ static int cdnsp_gadget_ep_disable(struct usb_ep *ep)
cdnsp_endpoint_zero(pdev, pep);
- ret = cdnsp_update_eps_configuration(pdev, pep);
+ if (!(pep->ep_state & EP_UNCONFIGURED))
+ ret = cdnsp_update_eps_configuration(pdev, pep);
+
cdnsp_free_endpoint_rings(pdev, pep);
- pep->ep_state &= ~EP_ENABLED;
+ pep->ep_state &= ~(EP_ENABLED | EP_UNCONFIGURED);
pep->ep_state |= EP_STOPPED;
finish:
diff --git a/drivers/usb/cdns3/cdnsp-gadget.h b/drivers/usb/cdns3/cdnsp-gadget.h
index 6bbb26548c04..783ca8ffde00 100644
--- a/drivers/usb/cdns3/cdnsp-gadget.h
+++ b/drivers/usb/cdns3/cdnsp-gadget.h
@@ -835,6 +835,7 @@ struct cdnsp_ep {
#define EP_WEDGE BIT(4)
#define EP0_HALTED_STATUS BIT(5)
#define EP_HAS_STREAMS BIT(6)
+#define EP_UNCONFIGURED BIT(7)
bool skip;
};
diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
index 7a84e928710e..5d4c4bfe15b7 100644
--- a/drivers/usb/cdns3/cdnsp-mem.c
+++ b/drivers/usb/cdns3/cdnsp-mem.c
@@ -686,7 +686,7 @@ static void cdnsp_free_priv_device(struct cdnsp_device *pdev)
static int cdnsp_alloc_priv_device(struct cdnsp_device *pdev)
{
- int ret = -ENOMEM;
+ int ret;
ret = cdnsp_init_device_ctx(pdev);
if (ret)
@@ -1231,7 +1231,6 @@ int cdnsp_mem_init(struct cdnsp_device *pdev)
if (!pdev->dcbaa)
return -ENOMEM;
- memset(pdev->dcbaa, 0, sizeof(*pdev->dcbaa));
pdev->dcbaa->dma = dma;
cdnsp_write_64(dma, &pdev->op_regs->dcbaa_ptr);
diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 199713769289..bb739d88179f 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -525,9 +525,36 @@ EXPORT_SYMBOL_GPL(cdns_suspend);
int cdns_resume(struct cdns *cdns, u8 set_active)
{
struct device *dev = cdns->dev;
+ enum usb_role real_role;
+ bool role_changed = false;
+ int ret = 0;
+
+ if (cdns_power_is_lost(cdns)) {
+ if (cdns->role_sw) {
+ cdns->role = cdns_role_get(cdns->role_sw);
+ } else {
+ real_role = cdns_hw_role_state_machine(cdns);
+ if (real_role != cdns->role) {
+ ret = cdns_hw_role_switch(cdns);
+ if (ret)
+ return ret;
+ role_changed = true;
+ }
+ }
+
+ if (!role_changed) {
+ if (cdns->role == USB_ROLE_HOST)
+ ret = cdns_drd_host_on(cdns);
+ else if (cdns->role == USB_ROLE_DEVICE)
+ ret = cdns_drd_gadget_on(cdns);
+
+ if (ret)
+ return ret;
+ }
+ }
if (cdns->roles[cdns->role]->resume)
- cdns->roles[cdns->role]->resume(cdns, false);
+ cdns->roles[cdns->role]->resume(cdns, cdns_power_is_lost(cdns));
if (set_active) {
pm_runtime_disable(dev);
diff --git a/drivers/usb/cdns3/drd.c b/drivers/usb/cdns3/drd.c
index fa5318ade3e1..55c73b1d8704 100644
--- a/drivers/usb/cdns3/drd.c
+++ b/drivers/usb/cdns3/drd.c
@@ -478,3 +478,18 @@ int cdns_drd_exit(struct cdns *cdns)
return 0;
}
+
+
+/* Indicate the cdns3 core was power lost before */
+bool cdns_power_is_lost(struct cdns *cdns)
+{
+ if (cdns->version == CDNS3_CONTROLLER_V1) {
+ if (!(readl(&cdns->otg_v1_regs->simulate) & BIT(0)))
+ return true;
+ } else {
+ if (!(readl(&cdns->otg_v0_regs->simulate) & BIT(0)))
+ return true;
+ }
+ return false;
+}
+EXPORT_SYMBOL_GPL(cdns_power_is_lost);
diff --git a/drivers/usb/cdns3/drd.h b/drivers/usb/cdns3/drd.h
index 9724acdecbbb..cbdf94f73ed9 100644
--- a/drivers/usb/cdns3/drd.h
+++ b/drivers/usb/cdns3/drd.h
@@ -215,5 +215,5 @@ int cdns_drd_gadget_on(struct cdns *cdns);
void cdns_drd_gadget_off(struct cdns *cdns);
int cdns_drd_host_on(struct cdns *cdns);
void cdns_drd_host_off(struct cdns *cdns);
-
+bool cdns_power_is_lost(struct cdns *cdns);
#endif /* __LINUX_CDNS3_DRD */
diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
index 90f2a8b786be..60361141ac04 100644
--- a/drivers/usb/chipidea/ci_hdrc_tegra.c
+++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
@@ -285,11 +285,9 @@ static int tegra_usb_probe(struct platform_device *pdev)
}
usb->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0);
- if (IS_ERR(usb->phy)) {
- err = PTR_ERR(usb->phy);
- dev_err(&pdev->dev, "failed to get PHY: %d\n", err);
- return err;
- }
+ if (IS_ERR(usb->phy))
+ return dev_err_probe(&pdev->dev, PTR_ERR(usb->phy),
+ "failed to get PHY\n");
usb->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usb->clk)) {
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 67247d2ac07a..e86d13c04bdb 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -32,7 +32,7 @@ struct ehci_ci_priv {
struct ci_hdrc_dma_aligned_buffer {
void *kmalloc_ptr;
void *old_xfer_buffer;
- u8 data[0];
+ u8 data[];
};
static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 3fda1ec961d7..ca7a61190dd9 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -929,8 +929,7 @@ static int get_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct acm *acm = tty->driver_data;
- ss->xmit_fifo_size = acm->writesize;
- ss->baud_base = le32_to_cpu(acm->line.dwDTERate);
+ ss->line = acm->minor;
ss->close_delay = jiffies_to_msecs(acm->port.close_delay) / 10;
ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE :
@@ -942,7 +941,6 @@ static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct acm *acm = tty->driver_data;
unsigned int closing_wait, close_delay;
- unsigned int old_closing_wait, old_close_delay;
int retval = 0;
close_delay = msecs_to_jiffies(ss->close_delay * 10);
@@ -950,20 +948,12 @@ static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss)
ASYNC_CLOSING_WAIT_NONE :
msecs_to_jiffies(ss->closing_wait * 10);
- /* we must redo the rounding here, so that the values match */
- old_close_delay = jiffies_to_msecs(acm->port.close_delay) / 10;
- old_closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
- ASYNC_CLOSING_WAIT_NONE :
- jiffies_to_msecs(acm->port.closing_wait) / 10;
-
mutex_lock(&acm->port.mutex);
if (!capable(CAP_SYS_ADMIN)) {
- if ((ss->close_delay != old_close_delay) ||
- (ss->closing_wait != old_closing_wait))
+ if ((close_delay != acm->port.close_delay) ||
+ (closing_wait != acm->port.closing_wait))
retval = -EPERM;
- else
- retval = -EOPNOTSUPP;
} else {
acm->port.close_delay = close_delay;
acm->port.closing_wait = closing_wait;
@@ -1634,12 +1624,13 @@ static int acm_resume(struct usb_interface *intf)
struct urb *urb;
int rv = 0;
- acm_unpoison_urbs(acm);
spin_lock_irq(&acm->write_lock);
if (--acm->susp_count)
goto out;
+ acm_unpoison_urbs(acm);
+
if (tty_port_initialized(&acm->port)) {
rv = usb_submit_urb(acm->ctrlurb, GFP_ATOMIC);
@@ -1922,9 +1913,17 @@ static const struct usb_device_id acm_ids[] = {
#endif
#if IS_ENABLED(CONFIG_USB_SERIAL_XR)
- { USB_DEVICE(0x04e2, 0x1410), /* Ignore XR21V141X USB to Serial converter */
- .driver_info = IGNORE_DEVICE,
- },
+ { USB_DEVICE(0x04e2, 0x1400), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1401), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1402), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1403), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1410), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1411), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1412), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1414), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1420), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1422), .driver_info = IGNORE_DEVICE },
+ { USB_DEVICE(0x04e2, 0x1424), .driver_info = IGNORE_DEVICE },
#endif
/*Samsung phone in firmware update mode */
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index fc21cf2d36f6..347fb3d3894a 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -25,6 +25,12 @@ static const char *const ep_type_names[] = {
[USB_ENDPOINT_XFER_INT] = "intr",
};
+/**
+ * usb_ep_type_string() - Returns human readable-name of the endpoint type.
+ * @ep_type: The endpoint type to return human-readable name for. If it's not
+ * any of the types: USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT},
+ * usually got by usb_endpoint_type(), the string 'unknown' will be returned.
+ */
const char *usb_ep_type_string(int ep_type)
{
if (ep_type < 0 || ep_type >= ARRAY_SIZE(ep_type_names))
@@ -76,6 +82,12 @@ static const char *const ssp_rate[] = {
[USB_SSP_GEN_2x2] = "super-speed-plus-gen2x2",
};
+/**
+ * usb_speed_string() - Returns human readable-name of the speed.
+ * @speed: The speed to return human-readable name for. If it's not
+ * any of the speeds defined in usb_device_speed enum, string for
+ * USB_SPEED_UNKNOWN will be returned.
+ */
const char *usb_speed_string(enum usb_device_speed speed)
{
if (speed < 0 || speed >= ARRAY_SIZE(speed_names))
@@ -84,6 +96,14 @@ const char *usb_speed_string(enum usb_device_speed speed)
}
EXPORT_SYMBOL_GPL(usb_speed_string);
+/**
+ * usb_get_maximum_speed - Get maximum requested speed for a given USB
+ * controller.
+ * @dev: Pointer to the given USB controller device
+ *
+ * The function gets the maximum speed string from property "maximum-speed",
+ * and returns the corresponding enum usb_device_speed.
+ */
enum usb_device_speed usb_get_maximum_speed(struct device *dev)
{
const char *maximum_speed;
@@ -102,6 +122,15 @@ enum usb_device_speed usb_get_maximum_speed(struct device *dev)
}
EXPORT_SYMBOL_GPL(usb_get_maximum_speed);
+/**
+ * usb_get_maximum_ssp_rate - Get the signaling rate generation and lane count
+ * of a SuperSpeed Plus capable device.
+ * @dev: Pointer to the given USB controller device
+ *
+ * If the string from "maximum-speed" property is super-speed-plus-genXxY where
+ * 'X' is the generation number and 'Y' is the number of lanes, then this
+ * function returns the corresponding enum usb_ssp_rate.
+ */
enum usb_ssp_rate usb_get_maximum_ssp_rate(struct device *dev)
{
const char *maximum_speed;
@@ -116,6 +145,12 @@ enum usb_ssp_rate usb_get_maximum_ssp_rate(struct device *dev)
}
EXPORT_SYMBOL_GPL(usb_get_maximum_ssp_rate);
+/**
+ * usb_state_string - Returns human readable name for the state.
+ * @state: The state to return a human-readable name for. If it's not
+ * any of the states devices in usb_device_state_string enum,
+ * the string UNKNOWN will be returned.
+ */
const char *usb_state_string(enum usb_device_state state)
{
static const char *const names[] = {
@@ -165,6 +200,47 @@ enum usb_dr_mode usb_get_dr_mode(struct device *dev)
}
EXPORT_SYMBOL_GPL(usb_get_dr_mode);
+/**
+ * usb_decode_interval - Decode bInterval into the time expressed in 1us unit
+ * @epd: The descriptor of the endpoint
+ * @speed: The speed that the endpoint works as
+ *
+ * Function returns the interval expressed in 1us unit for servicing
+ * endpoint for data transfers.
+ */
+unsigned int usb_decode_interval(const struct usb_endpoint_descriptor *epd,
+ enum usb_device_speed speed)
+{
+ unsigned int interval = 0;
+
+ switch (usb_endpoint_type(epd)) {
+ case USB_ENDPOINT_XFER_CONTROL:
+ /* uframes per NAK */
+ if (speed == USB_SPEED_HIGH)
+ interval = epd->bInterval;
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ interval = 1 << (epd->bInterval - 1);
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ /* uframes per NAK */
+ if (speed == USB_SPEED_HIGH && usb_endpoint_dir_out(epd))
+ interval = epd->bInterval;
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ if (speed >= USB_SPEED_HIGH)
+ interval = 1 << (epd->bInterval - 1);
+ else
+ interval = epd->bInterval;
+ break;
+ }
+
+ interval *= (speed >= USB_SPEED_HIGH) ? 125 : 1000;
+
+ return interval;
+}
+EXPORT_SYMBOL_GPL(usb_decode_interval);
+
#ifdef CONFIG_OF
/**
* of_usb_get_dr_mode_by_phy - Get dual role mode for the controller device
diff --git a/drivers/usb/common/debug.c b/drivers/usb/common/debug.c
index ba849c7bc5c7..a76a086b9c54 100644
--- a/drivers/usb/common/debug.c
+++ b/drivers/usb/common/debug.c
@@ -207,8 +207,26 @@ static void usb_decode_set_isoch_delay(__u8 wValue, char *str, size_t size)
snprintf(str, size, "Set Isochronous Delay(Delay = %d ns)", wValue);
}
-/*
- * usb_decode_ctrl - returns a string representation of ctrl request
+/**
+ * usb_decode_ctrl - Returns human readable representation of control request.
+ * @str: buffer to return a human-readable representation of control request.
+ * This buffer should have about 200 bytes.
+ * @size: size of str buffer.
+ * @bRequestType: matches the USB bmRequestType field
+ * @bRequest: matches the USB bRequest field
+ * @wValue: matches the USB wValue field (CPU byte order)
+ * @wIndex: matches the USB wIndex field (CPU byte order)
+ * @wLength: matches the USB wLength field (CPU byte order)
+ *
+ * Function returns decoded, formatted and human-readable description of
+ * control request packet.
+ *
+ * The usage scenario for this is for tracepoints, so function as a return
+ * use the same value as in parameters. This approach allows to use this
+ * function in TP_printk
+ *
+ * Important: wValue, wIndex, wLength parameters before invoking this function
+ * should be processed by le16_to_cpu macro.
*/
const char *usb_decode_ctrl(char *str, size_t size, __u8 bRequestType,
__u8 bRequest, __u16 wValue, __u16 wIndex,
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 1ef2de6e375a..d8b0041de612 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -157,38 +157,25 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
switch (usb_endpoint_type(desc)) {
case USB_ENDPOINT_XFER_CONTROL:
type = "Ctrl";
- if (speed == USB_SPEED_HIGH) /* uframes per NAK */
- interval = desc->bInterval;
- else
- interval = 0;
dir = 'B'; /* ctrl is bidirectional */
break;
case USB_ENDPOINT_XFER_ISOC:
type = "Isoc";
- interval = 1 << (desc->bInterval - 1);
break;
case USB_ENDPOINT_XFER_BULK:
type = "Bulk";
- if (speed == USB_SPEED_HIGH && dir == 'O') /* uframes per NAK */
- interval = desc->bInterval;
- else
- interval = 0;
break;
case USB_ENDPOINT_XFER_INT:
type = "Int.";
- if (speed == USB_SPEED_HIGH || speed >= USB_SPEED_SUPER)
- interval = 1 << (desc->bInterval - 1);
- else
- interval = desc->bInterval;
break;
default: /* "can't happen" */
return start;
}
- interval *= (speed == USB_SPEED_HIGH ||
- speed >= USB_SPEED_SUPER) ? 125 : 1000;
- if (interval % 1000)
+
+ interval = usb_decode_interval(desc, speed);
+ if (interval % 1000) {
unit = 'u';
- else {
+ } else {
unit = 'm';
interval /= 1000;
}
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 4dfa44d6cc3c..072968c40ade 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -519,17 +519,13 @@ static int usb_unbind_interface(struct device *dev)
* @driver: the driver to be bound
* @iface: the interface to which it will be bound; must be in the
* usb device's active configuration
- * @priv: driver data associated with that interface
+ * @data: driver data associated with that interface
*
* This is used by usb device drivers that need to claim more than one
* interface on a device when probing (audio and acm are current examples).
* No device driver should directly modify internal usb_interface or
* usb_device structure members.
*
- * Few drivers should need to use this routine, since the most natural
- * way to bind to an interface is to return the private data from
- * the driver's probe() method.
- *
* Callers must own the device lock, so driver probe() entries don't need
* extra locking, but other call contexts may need to explicitly claim that
* lock.
@@ -537,7 +533,7 @@ static int usb_unbind_interface(struct device *dev)
* Return: 0 on success.
*/
int usb_driver_claim_interface(struct usb_driver *driver,
- struct usb_interface *iface, void *priv)
+ struct usb_interface *iface, void *data)
{
struct device *dev;
int retval = 0;
@@ -554,7 +550,7 @@ int usb_driver_claim_interface(struct usb_driver *driver,
return -ENODEV;
dev->driver = &driver->drvwrap.driver;
- usb_set_intfdata(iface, priv);
+ usb_set_intfdata(iface, data);
iface->needs_binding = 0;
iface->condition = USB_INTERFACE_BOUND;
diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index 903426b6d305..a2530811cf7d 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -84,40 +84,13 @@ static ssize_t interval_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct ep_device *ep = to_ep_device(dev);
+ unsigned int interval;
char unit;
- unsigned interval = 0;
- unsigned in;
- in = (ep->desc->bEndpointAddress & USB_DIR_IN);
-
- switch (usb_endpoint_type(ep->desc)) {
- case USB_ENDPOINT_XFER_CONTROL:
- if (ep->udev->speed == USB_SPEED_HIGH)
- /* uframes per NAK */
- interval = ep->desc->bInterval;
- break;
-
- case USB_ENDPOINT_XFER_ISOC:
- interval = 1 << (ep->desc->bInterval - 1);
- break;
-
- case USB_ENDPOINT_XFER_BULK:
- if (ep->udev->speed == USB_SPEED_HIGH && !in)
- /* uframes per NAK */
- interval = ep->desc->bInterval;
- break;
-
- case USB_ENDPOINT_XFER_INT:
- if (ep->udev->speed == USB_SPEED_HIGH)
- interval = 1 << (ep->desc->bInterval - 1);
- else
- interval = ep->desc->bInterval;
- break;
- }
- interval *= (ep->udev->speed == USB_SPEED_HIGH) ? 125 : 1000;
- if (interval % 1000)
+ interval = usb_decode_interval(ep->desc, ep->udev->speed);
+ if (interval % 1000) {
unit = 'u';
- else {
+ } else {
unit = 'm';
interval /= 1000;
}
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 3f0381344221..6119fb41d736 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2721,6 +2721,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
rhdev->rx_lanes = 1;
rhdev->tx_lanes = 1;
+ rhdev->ssp_rate = USB_SSP_GEN_UNKNOWN;
switch (hcd->speed) {
case HCD_USB11:
@@ -2738,8 +2739,11 @@ int usb_add_hcd(struct usb_hcd *hcd,
case HCD_USB32:
rhdev->rx_lanes = 2;
rhdev->tx_lanes = 2;
- fallthrough;
+ rhdev->ssp_rate = USB_SSP_GEN_2x2;
+ rhdev->speed = USB_SPEED_SUPER_PLUS;
+ break;
case HCD_USB31:
+ rhdev->ssp_rate = USB_SSP_GEN_2x1;
rhdev->speed = USB_SPEED_SUPER_PLUS;
break;
default:
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 7f71218cc1e5..b2bc4b7c4289 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -31,6 +31,7 @@
#include <linux/pm_qos.h>
#include <linux/kobject.h>
+#include <linux/bitfield.h>
#include <linux/uaccess.h>
#include <asm/byteorder.h>
@@ -2668,31 +2669,79 @@ out_authorized:
return result;
}
-/*
- * Return 1 if port speed is SuperSpeedPlus, 0 otherwise
- * check it from the link protocol field of the current speed ID attribute.
- * current speed ID is got from ext port status request. Sublink speed attribute
- * table is returned with the hub BOS SSP device capability descriptor
+/**
+ * get_port_ssp_rate - Match the extended port status to SSP rate
+ * @hdev: The hub device
+ * @ext_portstatus: extended port status
+ *
+ * Match the extended port status speed id to the SuperSpeed Plus sublink speed
+ * capability attributes. Base on the number of connected lanes and speed,
+ * return the corresponding enum usb_ssp_rate.
*/
-static int port_speed_is_ssp(struct usb_device *hdev, int speed_id)
+static enum usb_ssp_rate get_port_ssp_rate(struct usb_device *hdev,
+ u32 ext_portstatus)
{
- int ssa_count;
- u32 ss_attr;
- int i;
struct usb_ssp_cap_descriptor *ssp_cap = hdev->bos->ssp_cap;
+ u32 attr;
+ u8 speed_id;
+ u8 ssac;
+ u8 lanes;
+ int i;
if (!ssp_cap)
- return 0;
+ goto out;
- ssa_count = le32_to_cpu(ssp_cap->bmAttributes) &
+ speed_id = ext_portstatus & USB_EXT_PORT_STAT_RX_SPEED_ID;
+ lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1;
+
+ ssac = le32_to_cpu(ssp_cap->bmAttributes) &
USB_SSP_SUBLINK_SPEED_ATTRIBS;
- for (i = 0; i <= ssa_count; i++) {
- ss_attr = le32_to_cpu(ssp_cap->bmSublinkSpeedAttr[i]);
- if (speed_id == (ss_attr & USB_SSP_SUBLINK_SPEED_SSID))
- return !!(ss_attr & USB_SSP_SUBLINK_SPEED_LP);
+ for (i = 0; i <= ssac; i++) {
+ u8 ssid;
+
+ attr = le32_to_cpu(ssp_cap->bmSublinkSpeedAttr[i]);
+ ssid = FIELD_GET(USB_SSP_SUBLINK_SPEED_SSID, attr);
+ if (speed_id == ssid) {
+ u16 mantissa;
+ u8 lse;
+ u8 type;
+
+ /*
+ * Note: currently asymmetric lane types are only
+ * applicable for SSIC operate in SuperSpeed protocol
+ */
+ type = FIELD_GET(USB_SSP_SUBLINK_SPEED_ST, attr);
+ if (type == USB_SSP_SUBLINK_SPEED_ST_ASYM_RX ||
+ type == USB_SSP_SUBLINK_SPEED_ST_ASYM_TX)
+ goto out;
+
+ if (FIELD_GET(USB_SSP_SUBLINK_SPEED_LP, attr) !=
+ USB_SSP_SUBLINK_SPEED_LP_SSP)
+ goto out;
+
+ lse = FIELD_GET(USB_SSP_SUBLINK_SPEED_LSE, attr);
+ mantissa = FIELD_GET(USB_SSP_SUBLINK_SPEED_LSM, attr);
+
+ /* Convert to Gbps */
+ for (; lse < USB_SSP_SUBLINK_SPEED_LSE_GBPS; lse++)
+ mantissa /= 1000;
+
+ if (mantissa >= 10 && lanes == 1)
+ return USB_SSP_GEN_2x1;
+
+ if (mantissa >= 10 && lanes == 2)
+ return USB_SSP_GEN_2x2;
+
+ if (mantissa >= 5 && lanes == 2)
+ return USB_SSP_GEN_1x2;
+
+ goto out;
+ }
}
- return 0;
+
+out:
+ return USB_SSP_GEN_UNKNOWN;
}
/* Returns 1 if @hub is a WUSB root hub, 0 otherwise */
@@ -2850,15 +2899,15 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
/* extended portstatus Rx and Tx lane count are zero based */
udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1;
udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1;
+ udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus);
} else {
udev->rx_lanes = 1;
udev->tx_lanes = 1;
+ udev->ssp_rate = USB_SSP_GEN_UNKNOWN;
}
if (hub_is_wusb(hub))
udev->speed = USB_SPEED_WIRELESS;
- else if (hub_is_superspeedplus(hub->hdev) &&
- port_speed_is_ssp(hub->hdev, ext_portstatus &
- USB_EXT_PORT_STAT_RX_SPEED_ID))
+ else if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN)
udev->speed = USB_SPEED_SUPER_PLUS;
else if (hub_is_superspeed(hub->hdev))
udev->speed = USB_SPEED_SUPER;
@@ -3556,7 +3605,7 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
u16 portchange, portstatus;
if (!test_and_set_bit(port1, hub->child_usage_bits)) {
- status = pm_runtime_get_sync(&port_dev->dev);
+ status = pm_runtime_resume_and_get(&port_dev->dev);
if (status < 0) {
dev_dbg(&udev->dev, "can't resume usb port, status %d\n",
status);
@@ -4781,9 +4830,13 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
"%s SuperSpeed%s%s USB device number %d using %s\n",
(udev->config) ? "reset" : "new",
(udev->speed == USB_SPEED_SUPER_PLUS) ?
- "Plus Gen 2" : " Gen 1",
- (udev->rx_lanes == 2 && udev->tx_lanes == 2) ?
- "x2" : "",
+ " Plus" : "",
+ (udev->ssp_rate == USB_SSP_GEN_2x2) ?
+ " Gen 2x2" :
+ (udev->ssp_rate == USB_SSP_GEN_2x1) ?
+ " Gen 2x1" :
+ (udev->ssp_rate == USB_SSP_GEN_1x2) ?
+ " Gen 1x2" : "",
devnum, driver_name);
}
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
index 73f4482d833a..22ea1f4f2d66 100644
--- a/drivers/usb/core/hub.h
+++ b/drivers/usb/core/hub.h
@@ -148,8 +148,10 @@ static inline unsigned hub_power_on_good_delay(struct usb_hub *hub)
{
unsigned delay = hub->descriptor->bPwrOn2PwrGood * 2;
- /* Wait at least 100 msec for power to become stable */
- return max(delay, 100U);
+ if (!hub->hdev->parent) /* root hub */
+ return delay;
+ else /* Wait at least 100 msec for power to become stable */
+ return max(delay, 100U);
}
static inline int hub_port_debounce_be_connected(struct usb_hub *hub,
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 76ac5d6555ae..21e7522655ac 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -406,6 +406,7 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Realtek hub in Dell WD19 (Type-C) */
{ USB_DEVICE(0x0bda, 0x0487), .driver_info = USB_QUIRK_NO_LPM },
+ { USB_DEVICE(0x0bda, 0x5487), .driver_info = USB_QUIRK_RESET_RESUME },
/* Generic RTL8153 based ethernet adapters */
{ USB_DEVICE(0x0bda, 0x8153), .driver_info = USB_QUIRK_NO_LPM },
@@ -438,6 +439,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x17ef, 0xa012), .driver_info =
USB_QUIRK_DISCONNECT_SUSPEND },
+ /* Lenovo ThinkPad USB-C Dock Gen2 Ethernet (RTL8153 GigE) */
+ { USB_DEVICE(0x17ef, 0xa387), .driver_info = USB_QUIRK_NO_LPM },
+
/* BUILDWIN Photo Frame */
{ USB_DEVICE(0x1908, 0x1315), .driver_info =
USB_QUIRK_HONOR_BNUMINTERFACES },
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index d85699bee671..5a168ba9fc51 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -167,7 +167,10 @@ static ssize_t speed_show(struct device *dev, struct device_attribute *attr,
speed = "5000";
break;
case USB_SPEED_SUPER_PLUS:
- speed = "10000";
+ if (udev->ssp_rate == USB_SSP_GEN_2x2)
+ speed = "20000";
+ else
+ speed = "10000";
break;
default:
speed = "unknown";
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index a566bb494e24..62368c4ed37a 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -398,6 +398,52 @@ int usb_for_each_dev(void *data, int (*fn)(struct usb_device *, void *))
}
EXPORT_SYMBOL_GPL(usb_for_each_dev);
+struct each_hub_arg {
+ void *data;
+ int (*fn)(struct device *, void *);
+};
+
+static int __each_hub(struct usb_device *hdev, void *data)
+{
+ struct each_hub_arg *arg = (struct each_hub_arg *)data;
+ struct usb_hub *hub;
+ int ret = 0;
+ int i;
+
+ hub = usb_hub_to_struct_hub(hdev);
+ if (!hub)
+ return 0;
+
+ mutex_lock(&usb_port_peer_mutex);
+
+ for (i = 0; i < hdev->maxchild; i++) {
+ ret = arg->fn(&hub->ports[i]->dev, arg->data);
+ if (ret)
+ break;
+ }
+
+ mutex_unlock(&usb_port_peer_mutex);
+
+ return ret;
+}
+
+/**
+ * usb_for_each_port - interate over all USB ports in the system
+ * @data: data pointer that will be handed to the callback function
+ * @fn: callback function to be called for each USB port
+ *
+ * Iterate over all USB ports and call @fn for each, passing it @data. If it
+ * returns anything other than 0, we break the iteration prematurely and return
+ * that value.
+ */
+int usb_for_each_port(void *data, int (*fn)(struct device *, void *))
+{
+ struct each_hub_arg arg = {data, fn};
+
+ return usb_for_each_dev(&arg, __each_hub);
+}
+EXPORT_SYMBOL_GPL(usb_for_each_port);
+
/**
* usb_release_dev - free a usb device structure when all users of it are finished.
* @dev: device that's been disconnected
@@ -982,17 +1028,15 @@ static struct notifier_block usb_bus_nb = {
.notifier_call = usb_bus_notify,
};
-static struct dentry *usb_devices_root;
-
static void usb_debugfs_init(void)
{
- usb_devices_root = debugfs_create_file("devices", 0444, usb_debug_root,
- NULL, &usbfs_devices_fops);
+ debugfs_create_file("devices", 0444, usb_debug_root, NULL,
+ &usbfs_devices_fops);
}
static void usb_debugfs_cleanup(void)
{
- debugfs_remove(usb_devices_root);
+ debugfs_remove(debugfs_lookup("devices", usb_debug_root));
}
/*
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index fec17a2d2447..6f70ab9577b4 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -131,54 +131,26 @@ int dwc2_restore_global_registers(struct dwc2_hsotg *hsotg)
* dwc2_exit_partial_power_down() - Exit controller from Partial Power Down.
*
* @hsotg: Programming view of the DWC_otg controller
+ * @rem_wakeup: indicates whether resume is initiated by Reset.
* @restore: Controller registers need to be restored
*/
-int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, bool restore)
+int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, int rem_wakeup,
+ bool restore)
{
- u32 pcgcctl;
- int ret = 0;
-
- if (hsotg->params.power_down != DWC2_POWER_DOWN_PARAM_PARTIAL)
- return -ENOTSUPP;
-
- pcgcctl = dwc2_readl(hsotg, PCGCTL);
- pcgcctl &= ~PCGCTL_STOPPCLK;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
-
- pcgcctl = dwc2_readl(hsotg, PCGCTL);
- pcgcctl &= ~PCGCTL_PWRCLMP;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
-
- pcgcctl = dwc2_readl(hsotg, PCGCTL);
- pcgcctl &= ~PCGCTL_RSTPDWNMODULE;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ struct dwc2_gregs_backup *gr;
- udelay(100);
- if (restore) {
- ret = dwc2_restore_global_registers(hsotg);
- if (ret) {
- dev_err(hsotg->dev, "%s: failed to restore registers\n",
- __func__);
- return ret;
- }
- if (dwc2_is_host_mode(hsotg)) {
- ret = dwc2_restore_host_registers(hsotg);
- if (ret) {
- dev_err(hsotg->dev, "%s: failed to restore host registers\n",
- __func__);
- return ret;
- }
- } else {
- ret = dwc2_restore_device_registers(hsotg, 0);
- if (ret) {
- dev_err(hsotg->dev, "%s: failed to restore device registers\n",
- __func__);
- return ret;
- }
- }
- }
+ gr = &hsotg->gr_backup;
- return ret;
+ /*
+ * Restore host or device regisers with the same mode core enterted
+ * to partial power down by checking "GOTGCTL_CURMODE_HOST" backup
+ * value of the "gotgctl" register.
+ */
+ if (gr->gotgctl & GOTGCTL_CURMODE_HOST)
+ return dwc2_host_exit_partial_power_down(hsotg, rem_wakeup,
+ restore);
+ else
+ return dwc2_gadget_exit_partial_power_down(hsotg, restore);
}
/**
@@ -188,57 +160,10 @@ int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, bool restore)
*/
int dwc2_enter_partial_power_down(struct dwc2_hsotg *hsotg)
{
- u32 pcgcctl;
- int ret = 0;
-
- if (!hsotg->params.power_down)
- return -ENOTSUPP;
-
- /* Backup all registers */
- ret = dwc2_backup_global_registers(hsotg);
- if (ret) {
- dev_err(hsotg->dev, "%s: failed to backup global registers\n",
- __func__);
- return ret;
- }
-
- if (dwc2_is_host_mode(hsotg)) {
- ret = dwc2_backup_host_registers(hsotg);
- if (ret) {
- dev_err(hsotg->dev, "%s: failed to backup host registers\n",
- __func__);
- return ret;
- }
- } else {
- ret = dwc2_backup_device_registers(hsotg);
- if (ret) {
- dev_err(hsotg->dev, "%s: failed to backup device registers\n",
- __func__);
- return ret;
- }
- }
-
- /*
- * Clear any pending interrupts since dwc2 will not be able to
- * clear them after entering partial_power_down.
- */
- dwc2_writel(hsotg, 0xffffffff, GINTSTS);
-
- /* Put the controller in low power state */
- pcgcctl = dwc2_readl(hsotg, PCGCTL);
-
- pcgcctl |= PCGCTL_PWRCLMP;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
- ndelay(20);
-
- pcgcctl |= PCGCTL_RSTPDWNMODULE;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
- ndelay(20);
-
- pcgcctl |= PCGCTL_STOPPCLK;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
-
- return ret;
+ if (dwc2_is_host_mode(hsotg))
+ return dwc2_host_enter_partial_power_down(hsotg);
+ else
+ return dwc2_gadget_enter_partial_power_down(hsotg);
}
/**
@@ -374,6 +299,12 @@ void dwc2_hib_restore_common(struct dwc2_hsotg *hsotg, int rem_wakeup,
__func__);
} else {
dev_dbg(hsotg->dev, "restore done generated here\n");
+
+ /*
+ * To avoid restore done interrupt storm after restore is
+ * generated clear GINTSTS_RESTOREDONE bit.
+ */
+ dwc2_writel(hsotg, GINTSTS_RESTOREDONE, GINTSTS);
}
}
@@ -460,9 +391,6 @@ static bool dwc2_iddig_filter_enabled(struct dwc2_hsotg *hsotg)
*/
int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg, int is_host)
{
- if (hsotg->params.power_down != DWC2_POWER_DOWN_PARAM_HIBERNATION)
- return -ENOTSUPP;
-
if (is_host)
return dwc2_host_enter_hibernation(hsotg);
else
@@ -545,6 +473,22 @@ int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait)
dwc2_writel(hsotg, greset, GRSTCTL);
}
+ /*
+ * Switching from device mode to host mode by disconnecting
+ * device cable core enters and exits form hibernation.
+ * However, the fifo map remains not cleared. It results
+ * to a WARNING (WARNING: CPU: 5 PID: 0 at drivers/usb/dwc2/
+ * gadget.c:307 dwc2_hsotg_init_fifo+0x12/0x152 [dwc2])
+ * if in host mode we disconnect the micro a to b host
+ * cable. Because core reset occurs.
+ * To avoid the WARNING, fifo_map should be cleared
+ * in dwc2_core_reset() function by taking into account configs.
+ * fifo_map must be cleared only if driver is configured in
+ * "CONFIG_USB_DWC2_PERIPHERAL" or "CONFIG_USB_DWC2_DUAL_ROLE"
+ * mode.
+ */
+ dwc2_clear_fifo_map(hsotg);
+
/* Wait for AHB master IDLE state */
if (dwc2_hsotg_wait_bit_set(hsotg, GRSTCTL, GRSTCTL_AHBIDLE, 10000)) {
dev_warn(hsotg->dev, "%s: HANG! AHB Idle timeout GRSTCTL GRSTCTL_AHBIDLE\n",
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index 7161344c6522..da5ac4a4595b 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -38,6 +38,7 @@
#ifndef __DWC2_CORE_H__
#define __DWC2_CORE_H__
+#include <linux/acpi.h>
#include <linux/phy/phy.h>
#include <linux/regulator/consumer.h>
#include <linux/usb/gadget.h>
@@ -426,7 +427,7 @@ enum dwc2_ep0_state {
* @g_tx_fifo_size: An array of TX fifo sizes in dedicated fifo
* mode. Each value corresponds to one EP
* starting from EP1 (max 15 values). Sizes are
- * in DWORDS with possible values from from
+ * in DWORDS with possible values from
* 16-32768 (default: 256, 256, 256, 256, 768,
* 768, 768, 768, 0, 0, 0, 0, 0, 0, 0).
* @change_speed_quirk: Change speed configuration to DWC2_SPEED_PARAM_FULL
@@ -865,6 +866,8 @@ struct dwc2_hregs_backup {
* @gadget_enabled: Peripheral mode sub-driver initialization indicator.
* @ll_hw_enabled: Status of low-level hardware resources.
* @hibernated: True if core is hibernated
+ * @in_ppd: True if core is partial power down mode.
+ * @bus_suspended: True if bus is suspended
* @reset_phy_on_wake: Quirk saying that we should assert PHY reset on a
* remote wakeup.
* @phy_off_for_suspend: Status of whether we turned the PHY off at suspend.
@@ -1022,7 +1025,6 @@ struct dwc2_hregs_backup {
* a pointer to an array of register definitions, the
* array size and the base address where the register bank
* is to be found.
- * @bus_suspended: True if bus is suspended
* @last_frame_num: Number of last frame. Range from 0 to 32768
* @frame_num_array: Used only if CONFIG_USB_DWC2_TRACK_MISSED_SOFS is
* defined, for missed SOFs tracking. Array holds that
@@ -1060,6 +1062,8 @@ struct dwc2_hsotg {
unsigned int gadget_enabled:1;
unsigned int ll_hw_enabled:1;
unsigned int hibernated:1;
+ unsigned int in_ppd:1;
+ bool bus_suspended;
unsigned int reset_phy_on_wake:1;
unsigned int need_phy_for_wake:1;
unsigned int phy_off_for_suspend:1;
@@ -1143,7 +1147,6 @@ struct dwc2_hsotg {
unsigned long hs_periodic_bitmap[
DIV_ROUND_UP(DWC2_HS_SCHEDULE_US, BITS_PER_LONG)];
u16 periodic_qh_count;
- bool bus_suspended;
bool new_connection;
u16 last_frame_num;
@@ -1301,7 +1304,8 @@ static inline bool dwc2_is_hs_iot(struct dwc2_hsotg *hsotg)
*/
int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait);
int dwc2_enter_partial_power_down(struct dwc2_hsotg *hsotg);
-int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, bool restore);
+int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, int rem_wakeup,
+ bool restore);
int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg, int is_host);
int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup,
int reset, int is_host);
@@ -1339,6 +1343,7 @@ irqreturn_t dwc2_handle_common_intr(int irq, void *dev);
/* The device ID match table */
extern const struct of_device_id dwc2_of_match_table[];
+extern const struct acpi_device_id dwc2_acpi_match[];
int dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg);
int dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg);
@@ -1409,11 +1414,19 @@ int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup);
int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg);
int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg,
int rem_wakeup, int reset);
+int dwc2_gadget_enter_partial_power_down(struct dwc2_hsotg *hsotg);
+int dwc2_gadget_exit_partial_power_down(struct dwc2_hsotg *hsotg,
+ bool restore);
+void dwc2_gadget_enter_clock_gating(struct dwc2_hsotg *hsotg);
+void dwc2_gadget_exit_clock_gating(struct dwc2_hsotg *hsotg,
+ int rem_wakeup);
int dwc2_hsotg_tx_fifo_count(struct dwc2_hsotg *hsotg);
int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg);
int dwc2_hsotg_tx_fifo_average_depth(struct dwc2_hsotg *hsotg);
void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg);
void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg);
+static inline void dwc2_clear_fifo_map(struct dwc2_hsotg *hsotg)
+{ hsotg->fifo_map = 0; }
#else
static inline int dwc2_hsotg_remove(struct dwc2_hsotg *dwc2)
{ return 0; }
@@ -1442,6 +1455,14 @@ static inline int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg)
static inline int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg,
int rem_wakeup, int reset)
{ return 0; }
+static inline int dwc2_gadget_enter_partial_power_down(struct dwc2_hsotg *hsotg)
+{ return 0; }
+static inline int dwc2_gadget_exit_partial_power_down(struct dwc2_hsotg *hsotg,
+ bool restore)
+{ return 0; }
+static inline void dwc2_gadget_enter_clock_gating(struct dwc2_hsotg *hsotg) {}
+static inline void dwc2_gadget_exit_clock_gating(struct dwc2_hsotg *hsotg,
+ int rem_wakeup) {}
static inline int dwc2_hsotg_tx_fifo_count(struct dwc2_hsotg *hsotg)
{ return 0; }
static inline int dwc2_hsotg_tx_fifo_total_depth(struct dwc2_hsotg *hsotg)
@@ -1450,6 +1471,7 @@ static inline int dwc2_hsotg_tx_fifo_average_depth(struct dwc2_hsotg *hsotg)
{ return 0; }
static inline void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg) {}
static inline void dwc2_gadget_program_ref_clk(struct dwc2_hsotg *hsotg) {}
+static inline void dwc2_clear_fifo_map(struct dwc2_hsotg *hsotg) {}
#endif
#if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
@@ -1459,11 +1481,18 @@ void dwc2_hcd_connect(struct dwc2_hsotg *hsotg);
void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force);
void dwc2_hcd_start(struct dwc2_hsotg *hsotg);
int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup);
+int dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex);
+int dwc2_port_resume(struct dwc2_hsotg *hsotg);
int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg);
int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg);
int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg);
int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg,
int rem_wakeup, int reset);
+int dwc2_host_enter_partial_power_down(struct dwc2_hsotg *hsotg);
+int dwc2_host_exit_partial_power_down(struct dwc2_hsotg *hsotg,
+ int rem_wakeup, bool restore);
+void dwc2_host_enter_clock_gating(struct dwc2_hsotg *hsotg);
+void dwc2_host_exit_clock_gating(struct dwc2_hsotg *hsotg, int rem_wakeup);
bool dwc2_host_can_poweroff_phy(struct dwc2_hsotg *dwc2);
static inline void dwc2_host_schedule_phy_reset(struct dwc2_hsotg *hsotg)
{ schedule_work(&hsotg->phy_reset_work); }
@@ -1479,6 +1508,10 @@ static inline void dwc2_hcd_start(struct dwc2_hsotg *hsotg) {}
static inline void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) {}
static inline int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup)
{ return 0; }
+static inline int dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
+{ return 0; }
+static inline int dwc2_port_resume(struct dwc2_hsotg *hsotg)
+{ return 0; }
static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg)
{ return 0; }
static inline int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg)
@@ -1490,6 +1523,14 @@ static inline int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg)
static inline int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg,
int rem_wakeup, int reset)
{ return 0; }
+static inline int dwc2_host_enter_partial_power_down(struct dwc2_hsotg *hsotg)
+{ return 0; }
+static inline int dwc2_host_exit_partial_power_down(struct dwc2_hsotg *hsotg,
+ int rem_wakeup, bool restore)
+{ return 0; }
+static inline void dwc2_host_enter_clock_gating(struct dwc2_hsotg *hsotg) {}
+static inline void dwc2_host_exit_clock_gating(struct dwc2_hsotg *hsotg,
+ int rem_wakeup) {}
static inline bool dwc2_host_can_poweroff_phy(struct dwc2_hsotg *dwc2)
{ return false; }
static inline void dwc2_host_schedule_phy_reset(struct dwc2_hsotg *hsotg) {}
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
index 55f1d14fc414..a5ab03808da6 100644
--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -307,6 +307,7 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
{
int ret;
+ u32 hprt0;
/* Clear interrupt */
dwc2_writel(hsotg, GINTSTS_SESSREQINT, GINTSTS);
@@ -316,10 +317,18 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
if (dwc2_is_device_mode(hsotg)) {
if (hsotg->lx_state == DWC2_L2) {
- ret = dwc2_exit_partial_power_down(hsotg, true);
- if (ret && (ret != -ENOTSUPP))
- dev_err(hsotg->dev,
- "exit power_down failed\n");
+ if (hsotg->in_ppd) {
+ ret = dwc2_exit_partial_power_down(hsotg, 0,
+ true);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit power_down failed\n");
+ }
+
+ /* Exit gadget mode clock gating. */
+ if (hsotg->params.power_down ==
+ DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
+ dwc2_gadget_exit_clock_gating(hsotg, 0);
}
/*
@@ -327,6 +336,13 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
* established
*/
dwc2_hsotg_disconnect(hsotg);
+ } else {
+ /* Turn on the port power bit. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_PWR;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+ /* Connect hcd after port power is set. */
+ dwc2_hcd_connect(hsotg);
}
}
@@ -407,32 +423,40 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "DSTS=0x%0x\n",
dwc2_readl(hsotg, DSTS));
if (hsotg->lx_state == DWC2_L2) {
- u32 dctl = dwc2_readl(hsotg, DCTL);
-
- /* Clear Remote Wakeup Signaling */
- dctl &= ~DCTL_RMTWKUPSIG;
- dwc2_writel(hsotg, dctl, DCTL);
- ret = dwc2_exit_partial_power_down(hsotg, true);
- if (ret && (ret != -ENOTSUPP))
- dev_err(hsotg->dev, "exit power_down failed\n");
+ if (hsotg->in_ppd) {
+ u32 dctl = dwc2_readl(hsotg, DCTL);
+ /* Clear Remote Wakeup Signaling */
+ dctl &= ~DCTL_RMTWKUPSIG;
+ dwc2_writel(hsotg, dctl, DCTL);
+ ret = dwc2_exit_partial_power_down(hsotg, 1,
+ true);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed\n");
+ call_gadget(hsotg, resume);
+ }
- /* Change to L0 state */
- hsotg->lx_state = DWC2_L0;
- call_gadget(hsotg, resume);
+ /* Exit gadget mode clock gating. */
+ if (hsotg->params.power_down ==
+ DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
+ dwc2_gadget_exit_clock_gating(hsotg, 0);
} else {
/* Change to L0 state */
hsotg->lx_state = DWC2_L0;
}
} else {
- if (hsotg->params.power_down)
- return;
-
- if (hsotg->lx_state != DWC2_L1) {
- u32 pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ if (hsotg->lx_state == DWC2_L2) {
+ if (hsotg->in_ppd) {
+ ret = dwc2_exit_partial_power_down(hsotg, 1,
+ true);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed\n");
+ }
- /* Restart the Phy Clock */
- pcgcctl &= ~PCGCTL_STOPPCLK;
- dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ if (hsotg->params.power_down ==
+ DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
+ dwc2_host_exit_clock_gating(hsotg, 1);
/*
* If we've got this quirk then the PHY is stuck upon
@@ -508,31 +532,33 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
return;
}
if (dsts & DSTS_SUSPSTS) {
- if (hsotg->hw_params.power_optimized) {
+ switch (hsotg->params.power_down) {
+ case DWC2_POWER_DOWN_PARAM_PARTIAL:
ret = dwc2_enter_partial_power_down(hsotg);
- if (ret) {
- if (ret != -ENOTSUPP)
- dev_err(hsotg->dev,
- "%s: enter partial_power_down failed\n",
- __func__);
- goto skip_power_saving;
- }
+ if (ret)
+ dev_err(hsotg->dev,
+ "enter partial_power_down failed\n");
udelay(100);
/* Ask phy to be suspended */
if (!IS_ERR_OR_NULL(hsotg->uphy))
usb_phy_set_suspend(hsotg->uphy, true);
- }
-
- if (hsotg->hw_params.hibernation) {
+ break;
+ case DWC2_POWER_DOWN_PARAM_HIBERNATION:
ret = dwc2_enter_hibernation(hsotg, 0);
- if (ret && ret != -ENOTSUPP)
+ if (ret)
dev_err(hsotg->dev,
- "%s: enter hibernation failed\n",
- __func__);
+ "enter hibernation failed\n");
+ break;
+ case DWC2_POWER_DOWN_PARAM_NONE:
+ /*
+ * If neither hibernation nor partial power down are supported,
+ * clock gating is used to save power.
+ */
+ dwc2_gadget_enter_clock_gating(hsotg);
}
-skip_power_saving:
+
/*
* Change to L2 (suspend) state before releasing
* spinlock
@@ -652,16 +678,82 @@ static u32 dwc2_read_common_intr(struct dwc2_hsotg *hsotg)
return 0;
}
+/**
+ * dwc_handle_gpwrdn_disc_det() - Handles the gpwrdn disconnect detect.
+ * Exits hibernation without restoring registers.
+ *
+ * @hsotg: Programming view of DWC_otg controller
+ * @gpwrdn: GPWRDN register
+ */
+static inline void dwc_handle_gpwrdn_disc_det(struct dwc2_hsotg *hsotg,
+ u32 gpwrdn)
+{
+ u32 gpwrdn_tmp;
+
+ /* Switch-on voltage to the core */
+ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
+ gpwrdn_tmp &= ~GPWRDN_PWRDNSWTCH;
+ dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
+ udelay(5);
+
+ /* Reset core */
+ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
+ gpwrdn_tmp &= ~GPWRDN_PWRDNRSTN;
+ dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
+ udelay(5);
+
+ /* Disable Power Down Clamp */
+ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
+ gpwrdn_tmp &= ~GPWRDN_PWRDNCLMP;
+ dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
+ udelay(5);
+
+ /* Deassert reset core */
+ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
+ gpwrdn_tmp |= GPWRDN_PWRDNRSTN;
+ dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
+ udelay(5);
+
+ /* Disable PMU interrupt */
+ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
+ gpwrdn_tmp &= ~GPWRDN_PMUINTSEL;
+ dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
+
+ /* De-assert Wakeup Logic */
+ gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
+ gpwrdn_tmp &= ~GPWRDN_PMUACTV;
+ dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
+
+ hsotg->hibernated = 0;
+ hsotg->bus_suspended = 0;
+
+ if (gpwrdn & GPWRDN_IDSTS) {
+ hsotg->op_state = OTG_STATE_B_PERIPHERAL;
+ dwc2_core_init(hsotg, false);
+ dwc2_enable_global_interrupts(hsotg);
+ dwc2_hsotg_core_init_disconnected(hsotg, false);
+ dwc2_hsotg_core_connect(hsotg);
+ } else {
+ hsotg->op_state = OTG_STATE_A_HOST;
+
+ /* Initialize the Core for Host mode */
+ dwc2_core_init(hsotg, false);
+ dwc2_enable_global_interrupts(hsotg);
+ dwc2_hcd_start(hsotg);
+ }
+}
+
/*
* GPWRDN interrupt handler.
*
* The GPWRDN interrupts are those that occur in both Host and
* Device mode while core is in hibernated state.
*/
-static void dwc2_handle_gpwrdn_intr(struct dwc2_hsotg *hsotg)
+static int dwc2_handle_gpwrdn_intr(struct dwc2_hsotg *hsotg)
{
u32 gpwrdn;
int linestate;
+ int ret = 0;
gpwrdn = dwc2_readl(hsotg, GPWRDN);
/* clear all interrupt */
@@ -673,93 +765,52 @@ static void dwc2_handle_gpwrdn_intr(struct dwc2_hsotg *hsotg)
if ((gpwrdn & GPWRDN_DISCONN_DET) &&
(gpwrdn & GPWRDN_DISCONN_DET_MSK) && !linestate) {
- u32 gpwrdn_tmp;
-
dev_dbg(hsotg->dev, "%s: GPWRDN_DISCONN_DET\n", __func__);
-
- /* Switch-on voltage to the core */
- gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
- gpwrdn_tmp &= ~GPWRDN_PWRDNSWTCH;
- dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
- udelay(10);
-
- /* Reset core */
- gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
- gpwrdn_tmp &= ~GPWRDN_PWRDNRSTN;
- dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
- udelay(10);
-
- /* Disable Power Down Clamp */
- gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
- gpwrdn_tmp &= ~GPWRDN_PWRDNCLMP;
- dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
- udelay(10);
-
- /* Deassert reset core */
- gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
- gpwrdn_tmp |= GPWRDN_PWRDNRSTN;
- dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
- udelay(10);
-
- /* Disable PMU interrupt */
- gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
- gpwrdn_tmp &= ~GPWRDN_PMUINTSEL;
- dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
-
- /* De-assert Wakeup Logic */
- gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN);
- gpwrdn_tmp &= ~GPWRDN_PMUACTV;
- dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN);
-
- hsotg->hibernated = 0;
-
- if (gpwrdn & GPWRDN_IDSTS) {
- hsotg->op_state = OTG_STATE_B_PERIPHERAL;
- dwc2_core_init(hsotg, false);
- dwc2_enable_global_interrupts(hsotg);
- dwc2_hsotg_core_init_disconnected(hsotg, false);
- dwc2_hsotg_core_connect(hsotg);
- } else {
- hsotg->op_state = OTG_STATE_A_HOST;
-
- /* Initialize the Core for Host mode */
- dwc2_core_init(hsotg, false);
- dwc2_enable_global_interrupts(hsotg);
- dwc2_hcd_start(hsotg);
- }
- }
-
- if ((gpwrdn & GPWRDN_LNSTSCHG) &&
- (gpwrdn & GPWRDN_LNSTSCHG_MSK) && linestate) {
+ /*
+ * Call disconnect detect function to exit from
+ * hibernation
+ */
+ dwc_handle_gpwrdn_disc_det(hsotg, gpwrdn);
+ } else if ((gpwrdn & GPWRDN_LNSTSCHG) &&
+ (gpwrdn & GPWRDN_LNSTSCHG_MSK) && linestate) {
dev_dbg(hsotg->dev, "%s: GPWRDN_LNSTSCHG\n", __func__);
if (hsotg->hw_params.hibernation &&
hsotg->hibernated) {
if (gpwrdn & GPWRDN_IDSTS) {
- dwc2_exit_hibernation(hsotg, 0, 0, 0);
+ ret = dwc2_exit_hibernation(hsotg, 0, 0, 0);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit hibernation failed.\n");
call_gadget(hsotg, resume);
} else {
- dwc2_exit_hibernation(hsotg, 1, 0, 1);
+ ret = dwc2_exit_hibernation(hsotg, 1, 0, 1);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit hibernation failed.\n");
}
}
- }
- if ((gpwrdn & GPWRDN_RST_DET) && (gpwrdn & GPWRDN_RST_DET_MSK)) {
+ } else if ((gpwrdn & GPWRDN_RST_DET) &&
+ (gpwrdn & GPWRDN_RST_DET_MSK)) {
dev_dbg(hsotg->dev, "%s: GPWRDN_RST_DET\n", __func__);
- if (!linestate && (gpwrdn & GPWRDN_BSESSVLD))
- dwc2_exit_hibernation(hsotg, 0, 1, 0);
- }
- if ((gpwrdn & GPWRDN_STS_CHGINT) &&
- (gpwrdn & GPWRDN_STS_CHGINT_MSK) && linestate) {
- dev_dbg(hsotg->dev, "%s: GPWRDN_STS_CHGINT\n", __func__);
- if (hsotg->hw_params.hibernation &&
- hsotg->hibernated) {
- if (gpwrdn & GPWRDN_IDSTS) {
- dwc2_exit_hibernation(hsotg, 0, 0, 0);
- call_gadget(hsotg, resume);
- } else {
- dwc2_exit_hibernation(hsotg, 1, 0, 1);
- }
+ if (!linestate) {
+ ret = dwc2_exit_hibernation(hsotg, 0, 1, 0);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit hibernation failed.\n");
}
+ } else if ((gpwrdn & GPWRDN_STS_CHGINT) &&
+ (gpwrdn & GPWRDN_STS_CHGINT_MSK)) {
+ dev_dbg(hsotg->dev, "%s: GPWRDN_STS_CHGINT\n", __func__);
+ /*
+ * As GPWRDN_STS_CHGINT exit from hibernation flow is
+ * the same as in GPWRDN_DISCONN_DET flow. Call
+ * disconnect detect helper function to exit from
+ * hibernation.
+ */
+ dwc_handle_gpwrdn_disc_det(hsotg, gpwrdn);
}
+
+ return ret;
}
/*
diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c
index aaafd463d72a..f13eed4231e1 100644
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@ -691,6 +691,8 @@ static int params_show(struct seq_file *seq, void *v)
print_param(seq, p, ulpi_fs_ls);
print_param(seq, p, host_support_fs_ls_low_power);
print_param(seq, p, host_ls_low_power_phy_clk);
+ print_param(seq, p, activate_stm_fs_transceiver);
+ print_param(seq, p, activate_stm_id_vb_detection);
print_param(seq, p, ts_dline);
print_param(seq, p, reload_ctl);
print_param_hex(seq, p, ahbcfg);
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index ad4c94366dad..e6bb1bdb2760 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3689,10 +3689,10 @@ irq_retry:
dwc2_writel(hsotg, GINTSTS_RESETDET, GINTSTS);
/* This event must be used only if controller is suspended */
- if (hsotg->lx_state == DWC2_L2) {
- dwc2_exit_partial_power_down(hsotg, true);
- hsotg->lx_state = DWC2_L0;
- }
+ if (hsotg->in_ppd && hsotg->lx_state == DWC2_L2)
+ dwc2_exit_partial_power_down(hsotg, 0, true);
+
+ hsotg->lx_state = DWC2_L0;
}
if (gintsts & (GINTSTS_USBRST | GINTSTS_RESETDET)) {
@@ -4615,11 +4615,15 @@ static int dwc2_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
spin_lock_irqsave(&hsotg->lock, flags);
/*
- * If controller is hibernated, it must exit from power_down
- * before being initialized / de-initialized
+ * If controller is in partial power down state, it must exit from
+ * that state before being initialized / de-initialized
*/
- if (hsotg->lx_state == DWC2_L2)
- dwc2_exit_partial_power_down(hsotg, false);
+ if (hsotg->lx_state == DWC2_L2 && hsotg->in_ppd)
+ /*
+ * No need to check the return value as
+ * registers are not being restored.
+ */
+ dwc2_exit_partial_power_down(hsotg, 0, false);
if (is_active) {
hsotg->op_state = OTG_STATE_B_PERIPHERAL;
@@ -5301,6 +5305,10 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg,
dwc2_writel(hsotg, dr->dcfg, DCFG);
dwc2_writel(hsotg, dr->dctl, DCTL);
+ /* On USB Reset, reset device address to zero */
+ if (reset)
+ dwc2_clear_bit(hsotg, DCFG, DCFG_DEVADDR_MASK);
+
/* De-assert Wakeup Logic */
gpwrdn = dwc2_readl(hsotg, GPWRDN);
gpwrdn &= ~GPWRDN_PMUACTV;
@@ -5351,3 +5359,202 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg,
return ret;
}
+
+/**
+ * dwc2_gadget_enter_partial_power_down() - Put controller in partial
+ * power down.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
+ * Return: non-zero if failed to enter device partial power down.
+ *
+ * This function is for entering device mode partial power down.
+ */
+int dwc2_gadget_enter_partial_power_down(struct dwc2_hsotg *hsotg)
+{
+ u32 pcgcctl;
+ int ret = 0;
+
+ dev_dbg(hsotg->dev, "Entering device partial power down started.\n");
+
+ /* Backup all registers */
+ ret = dwc2_backup_global_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup global registers\n",
+ __func__);
+ return ret;
+ }
+
+ ret = dwc2_backup_device_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup device registers\n",
+ __func__);
+ return ret;
+ }
+
+ /*
+ * Clear any pending interrupts since dwc2 will not be able to
+ * clear them after entering partial_power_down.
+ */
+ dwc2_writel(hsotg, 0xffffffff, GINTSTS);
+
+ /* Put the controller in low power state */
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+
+ pcgcctl |= PCGCTL_PWRCLMP;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ udelay(5);
+
+ pcgcctl |= PCGCTL_RSTPDWNMODULE;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ udelay(5);
+
+ pcgcctl |= PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+
+ /* Set in_ppd flag to 1 as here core enters suspend. */
+ hsotg->in_ppd = 1;
+ hsotg->lx_state = DWC2_L2;
+
+ dev_dbg(hsotg->dev, "Entering device partial power down completed.\n");
+
+ return ret;
+}
+
+/*
+ * dwc2_gadget_exit_partial_power_down() - Exit controller from device partial
+ * power down.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ * @restore: indicates whether need to restore the registers or not.
+ *
+ * Return: non-zero if failed to exit device partial power down.
+ *
+ * This function is for exiting from device mode partial power down.
+ */
+int dwc2_gadget_exit_partial_power_down(struct dwc2_hsotg *hsotg,
+ bool restore)
+{
+ u32 pcgcctl;
+ u32 dctl;
+ struct dwc2_dregs_backup *dr;
+ int ret = 0;
+
+ dr = &hsotg->dr_backup;
+
+ dev_dbg(hsotg->dev, "Exiting device partial Power Down started.\n");
+
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ pcgcctl &= ~PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ pcgcctl &= ~PCGCTL_PWRCLMP;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ pcgcctl &= ~PCGCTL_RSTPDWNMODULE;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+
+ udelay(100);
+ if (restore) {
+ ret = dwc2_restore_global_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore registers\n",
+ __func__);
+ return ret;
+ }
+ /* Restore DCFG */
+ dwc2_writel(hsotg, dr->dcfg, DCFG);
+
+ ret = dwc2_restore_device_registers(hsotg, 0);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore device registers\n",
+ __func__);
+ return ret;
+ }
+ }
+
+ /* Set the Power-On Programming done bit */
+ dctl = dwc2_readl(hsotg, DCTL);
+ dctl |= DCTL_PWRONPRGDONE;
+ dwc2_writel(hsotg, dctl, DCTL);
+
+ /* Set in_ppd flag to 0 as here core exits from suspend. */
+ hsotg->in_ppd = 0;
+ hsotg->lx_state = DWC2_L0;
+
+ dev_dbg(hsotg->dev, "Exiting device partial Power Down completed.\n");
+ return ret;
+}
+
+/**
+ * dwc2_gadget_enter_clock_gating() - Put controller in clock gating.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
+ * Return: non-zero if failed to enter device partial power down.
+ *
+ * This function is for entering device mode clock gating.
+ */
+void dwc2_gadget_enter_clock_gating(struct dwc2_hsotg *hsotg)
+{
+ u32 pcgctl;
+
+ dev_dbg(hsotg->dev, "Entering device clock gating.\n");
+
+ /* Set the Phy Clock bit as suspend is received. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl |= PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ /* Set the Gate hclk as suspend is received. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl |= PCGCTL_GATEHCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ hsotg->lx_state = DWC2_L2;
+ hsotg->bus_suspended = true;
+}
+
+/*
+ * dwc2_gadget_exit_clock_gating() - Exit controller from device clock gating.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ * @rem_wakeup: indicates whether remote wake up is enabled.
+ *
+ * This function is for exiting from device mode clock gating.
+ */
+void dwc2_gadget_exit_clock_gating(struct dwc2_hsotg *hsotg, int rem_wakeup)
+{
+ u32 pcgctl;
+ u32 dctl;
+
+ dev_dbg(hsotg->dev, "Exiting device clock gating.\n");
+
+ /* Clear the Gate hclk. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl &= ~PCGCTL_GATEHCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ /* Phy Clock bit. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl &= ~PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ if (rem_wakeup) {
+ /* Set Remote Wakeup Signaling */
+ dctl = dwc2_readl(hsotg, DCTL);
+ dctl |= DCTL_RMTWKUPSIG;
+ dwc2_writel(hsotg, dctl, DCTL);
+ }
+
+ /* Change to L0 state */
+ call_gadget(hsotg, resume);
+ hsotg->lx_state = DWC2_L0;
+ hsotg->bus_suspended = false;
+}
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 1a9789ec5847..035d4911a3c3 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -56,8 +56,6 @@
#include "core.h"
#include "hcd.h"
-static void dwc2_port_resume(struct dwc2_hsotg *hsotg);
-
/*
* =========================================================================
* Host Core Layer Functions
@@ -3208,6 +3206,15 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
if (count > 250)
dev_err(hsotg->dev,
"Connection id status change timed out\n");
+
+ /*
+ * Exit Partial Power Down without restoring registers.
+ * No need to check the return value as registers
+ * are not being restored.
+ */
+ if (hsotg->in_ppd && hsotg->lx_state == DWC2_L2)
+ dwc2_exit_partial_power_down(hsotg, 0, false);
+
hsotg->op_state = OTG_STATE_B_PERIPHERAL;
dwc2_core_init(hsotg, false);
dwc2_enable_global_interrupts(hsotg);
@@ -3277,13 +3284,23 @@ static int dwc2_host_is_b_hnp_enabled(struct dwc2_hsotg *hsotg)
return hcd->self.b_hnp_enable;
}
-/* Must NOT be called with interrupt disabled or spinlock held */
-static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
+/**
+ * dwc2_port_suspend() - Put controller in suspend mode for host.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ * @windex: The control request wIndex field
+ *
+ * Return: non-zero if failed to enter suspend mode for host.
+ *
+ * This function is for entering Host mode suspend.
+ * Must NOT be called with interrupt disabled or spinlock held.
+ */
+int dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
{
unsigned long flags;
- u32 hprt0;
u32 pcgctl;
u32 gotgctl;
+ int ret = 0;
dev_dbg(hsotg->dev, "%s()\n", __func__);
@@ -3296,22 +3313,33 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
hsotg->op_state = OTG_STATE_A_SUSPEND;
}
- hprt0 = dwc2_read_hprt0(hsotg);
- hprt0 |= HPRT0_SUSP;
- dwc2_writel(hsotg, hprt0, HPRT0);
-
- hsotg->bus_suspended = true;
-
- /*
- * If power_down is supported, Phy clock will be suspended
- * after registers are backuped.
- */
- if (!hsotg->params.power_down) {
- /* Suspend the Phy Clock */
- pcgctl = dwc2_readl(hsotg, PCGCTL);
- pcgctl |= PCGCTL_STOPPCLK;
- dwc2_writel(hsotg, pcgctl, PCGCTL);
- udelay(10);
+ switch (hsotg->params.power_down) {
+ case DWC2_POWER_DOWN_PARAM_PARTIAL:
+ ret = dwc2_enter_partial_power_down(hsotg);
+ if (ret)
+ dev_err(hsotg->dev,
+ "enter partial_power_down failed.\n");
+ break;
+ case DWC2_POWER_DOWN_PARAM_HIBERNATION:
+ /*
+ * Perform spin unlock and lock because in
+ * "dwc2_host_enter_hibernation()" function there is a spinlock
+ * logic which prevents servicing of any IRQ during entering
+ * hibernation.
+ */
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ ret = dwc2_enter_hibernation(hsotg, 1);
+ if (ret)
+ dev_err(hsotg->dev, "enter hibernation failed.\n");
+ spin_lock_irqsave(&hsotg->lock, flags);
+ break;
+ case DWC2_POWER_DOWN_PARAM_NONE:
+ /*
+ * If not hibernation nor partial power down are supported,
+ * clock gating is used to save power.
+ */
+ dwc2_host_enter_clock_gating(hsotg);
+ break;
}
/* For HNP the bus must be suspended for at least 200ms */
@@ -3326,44 +3354,54 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
} else {
spin_unlock_irqrestore(&hsotg->lock, flags);
}
+
+ return ret;
}
-/* Must NOT be called with interrupt disabled or spinlock held */
-static void dwc2_port_resume(struct dwc2_hsotg *hsotg)
+/**
+ * dwc2_port_resume() - Exit controller from suspend mode for host.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
+ * Return: non-zero if failed to exit suspend mode for host.
+ *
+ * This function is for exiting Host mode suspend.
+ * Must NOT be called with interrupt disabled or spinlock held.
+ */
+int dwc2_port_resume(struct dwc2_hsotg *hsotg)
{
unsigned long flags;
- u32 hprt0;
- u32 pcgctl;
+ int ret = 0;
spin_lock_irqsave(&hsotg->lock, flags);
- /*
- * If power_down is supported, Phy clock is already resumed
- * after registers restore.
- */
- if (!hsotg->params.power_down) {
- pcgctl = dwc2_readl(hsotg, PCGCTL);
- pcgctl &= ~PCGCTL_STOPPCLK;
- dwc2_writel(hsotg, pcgctl, PCGCTL);
+ switch (hsotg->params.power_down) {
+ case DWC2_POWER_DOWN_PARAM_PARTIAL:
+ ret = dwc2_exit_partial_power_down(hsotg, 0, true);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed.\n");
+ break;
+ case DWC2_POWER_DOWN_PARAM_HIBERNATION:
+ /* Exit host hibernation. */
+ ret = dwc2_exit_hibernation(hsotg, 0, 0, 1);
+ if (ret)
+ dev_err(hsotg->dev, "exit hibernation failed.\n");
+ break;
+ case DWC2_POWER_DOWN_PARAM_NONE:
+ /*
+ * If not hibernation nor partial power down are supported,
+ * port resume is done using the clock gating programming flow.
+ */
spin_unlock_irqrestore(&hsotg->lock, flags);
- msleep(20);
+ dwc2_host_exit_clock_gating(hsotg, 0);
spin_lock_irqsave(&hsotg->lock, flags);
+ break;
}
- hprt0 = dwc2_read_hprt0(hsotg);
- hprt0 |= HPRT0_RES;
- hprt0 &= ~HPRT0_SUSP;
- dwc2_writel(hsotg, hprt0, HPRT0);
spin_unlock_irqrestore(&hsotg->lock, flags);
- msleep(USB_RESUME_TIMEOUT);
-
- spin_lock_irqsave(&hsotg->lock, flags);
- hprt0 = dwc2_read_hprt0(hsotg);
- hprt0 &= ~(HPRT0_RES | HPRT0_SUSP);
- dwc2_writel(hsotg, hprt0, HPRT0);
- hsotg->bus_suspended = false;
- spin_unlock_irqrestore(&hsotg->lock, flags);
+ return ret;
}
/* Handles hub class-specific requests */
@@ -3413,12 +3451,8 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
dev_dbg(hsotg->dev,
"ClearPortFeature USB_PORT_FEAT_SUSPEND\n");
- if (hsotg->bus_suspended) {
- if (hsotg->hibernated)
- dwc2_exit_hibernation(hsotg, 0, 0, 1);
- else
- dwc2_port_resume(hsotg);
- }
+ if (hsotg->bus_suspended)
+ retval = dwc2_port_resume(hsotg);
break;
case USB_PORT_FEAT_POWER:
@@ -3629,10 +3663,8 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
"SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
if (windex != hsotg->otg_port)
goto error;
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION)
- dwc2_enter_hibernation(hsotg, 1);
- else
- dwc2_port_suspend(hsotg, windex);
+ if (!hsotg->bus_suspended)
+ retval = dwc2_port_suspend(hsotg, windex);
break;
case USB_PORT_FEAT_POWER:
@@ -3647,12 +3679,30 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
break;
case USB_PORT_FEAT_RESET:
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION &&
- hsotg->hibernated)
- dwc2_exit_hibernation(hsotg, 0, 1, 1);
- hprt0 = dwc2_read_hprt0(hsotg);
dev_dbg(hsotg->dev,
"SetPortFeature - USB_PORT_FEAT_RESET\n");
+
+ hprt0 = dwc2_read_hprt0(hsotg);
+
+ if (hsotg->hibernated) {
+ retval = dwc2_exit_hibernation(hsotg, 0, 1, 1);
+ if (retval)
+ dev_err(hsotg->dev,
+ "exit hibernation failed\n");
+ }
+
+ if (hsotg->in_ppd) {
+ retval = dwc2_exit_partial_power_down(hsotg, 1,
+ true);
+ if (retval)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed\n");
+ }
+
+ if (hsotg->params.power_down ==
+ DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
+ dwc2_host_exit_clock_gating(hsotg, 0);
+
pcgctl = dwc2_readl(hsotg, PCGCTL);
pcgctl &= ~(PCGCTL_ENBL_SLEEP_GATING | PCGCTL_STOPPCLK);
dwc2_writel(hsotg, pcgctl, PCGCTL);
@@ -4305,8 +4355,6 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
unsigned long flags;
int ret = 0;
- u32 hprt0;
- u32 pcgctl;
spin_lock_irqsave(&hsotg->lock, flags);
@@ -4322,47 +4370,51 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
if (hsotg->op_state == OTG_STATE_B_PERIPHERAL)
goto unlock;
- if (hsotg->params.power_down != DWC2_POWER_DOWN_PARAM_PARTIAL ||
- hsotg->flags.b.port_connect_status == 0)
+ if (hsotg->bus_suspended)
goto skip_power_saving;
- /*
- * Drive USB suspend and disable port Power
- * if usb bus is not suspended.
- */
- if (!hsotg->bus_suspended) {
- hprt0 = dwc2_read_hprt0(hsotg);
- if (hprt0 & HPRT0_CONNSTS) {
- hprt0 |= HPRT0_SUSP;
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_PARTIAL)
- hprt0 &= ~HPRT0_PWR;
- dwc2_writel(hsotg, hprt0, HPRT0);
- }
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_PARTIAL) {
- spin_unlock_irqrestore(&hsotg->lock, flags);
- dwc2_vbus_supply_exit(hsotg);
- spin_lock_irqsave(&hsotg->lock, flags);
- } else {
- pcgctl = readl(hsotg->regs + PCGCTL);
- pcgctl |= PCGCTL_STOPPCLK;
- writel(pcgctl, hsotg->regs + PCGCTL);
- }
- }
+ if (hsotg->flags.b.port_connect_status == 0)
+ goto skip_power_saving;
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_PARTIAL) {
+ switch (hsotg->params.power_down) {
+ case DWC2_POWER_DOWN_PARAM_PARTIAL:
/* Enter partial_power_down */
ret = dwc2_enter_partial_power_down(hsotg);
- if (ret) {
- if (ret != -ENOTSUPP)
- dev_err(hsotg->dev,
- "enter partial_power_down failed\n");
- goto skip_power_saving;
- }
+ if (ret)
+ dev_err(hsotg->dev,
+ "enter partial_power_down failed\n");
+ /* After entering suspend, hardware is not accessible */
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ break;
+ case DWC2_POWER_DOWN_PARAM_HIBERNATION:
+ /* Enter hibernation */
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ ret = dwc2_enter_hibernation(hsotg, 1);
+ if (ret)
+ dev_err(hsotg->dev, "enter hibernation failed\n");
+ spin_lock_irqsave(&hsotg->lock, flags);
+
+ /* After entering suspend, hardware is not accessible */
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ break;
+ case DWC2_POWER_DOWN_PARAM_NONE:
+ /*
+ * If not hibernation nor partial power down are supported,
+ * clock gating is used to save power.
+ */
+ dwc2_host_enter_clock_gating(hsotg);
- /* After entering partial_power_down, hardware is no more accessible */
+ /* After entering suspend, hardware is not accessible */
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ break;
+ default:
+ goto skip_power_saving;
}
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ dwc2_vbus_supply_exit(hsotg);
+ spin_lock_irqsave(&hsotg->lock, flags);
+
/* Ask phy to be suspended */
if (!IS_ERR_OR_NULL(hsotg->uphy)) {
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -4382,7 +4434,7 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd)
{
struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
unsigned long flags;
- u32 pcgctl;
+ u32 hprt0;
int ret = 0;
spin_lock_irqsave(&hsotg->lock, flags);
@@ -4393,68 +4445,102 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd)
if (hsotg->lx_state != DWC2_L2)
goto unlock;
- if (hsotg->params.power_down > DWC2_POWER_DOWN_PARAM_PARTIAL) {
+ hprt0 = dwc2_read_hprt0(hsotg);
+
+ /*
+ * Added port connection status checking which prevents exiting from
+ * Partial Power Down mode from _dwc2_hcd_resume() if not in Partial
+ * Power Down mode.
+ */
+ if (hprt0 & HPRT0_CONNSTS) {
hsotg->lx_state = DWC2_L0;
goto unlock;
}
- /*
- * Enable power if not already done.
- * This must not be spinlocked since duration
- * of this call is unknown.
- */
- if (!IS_ERR_OR_NULL(hsotg->uphy)) {
+ switch (hsotg->params.power_down) {
+ case DWC2_POWER_DOWN_PARAM_PARTIAL:
+ ret = dwc2_exit_partial_power_down(hsotg, 0, true);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed\n");
+ /*
+ * Set HW accessible bit before powering on the controller
+ * since an interrupt may rise.
+ */
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ break;
+ case DWC2_POWER_DOWN_PARAM_HIBERNATION:
+ ret = dwc2_exit_hibernation(hsotg, 0, 0, 1);
+ if (ret)
+ dev_err(hsotg->dev, "exit hibernation failed.\n");
+
+ /*
+ * Set HW accessible bit before powering on the controller
+ * since an interrupt may rise.
+ */
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ break;
+ case DWC2_POWER_DOWN_PARAM_NONE:
+ /*
+ * If not hibernation nor partial power down are supported,
+ * port resume is done using the clock gating programming flow.
+ */
spin_unlock_irqrestore(&hsotg->lock, flags);
- usb_phy_set_suspend(hsotg->uphy, false);
+ dwc2_host_exit_clock_gating(hsotg, 0);
+
+ /*
+ * Initialize the Core for Host mode, as after system resume
+ * the global interrupts are disabled.
+ */
+ dwc2_core_init(hsotg, false);
+ dwc2_enable_global_interrupts(hsotg);
+ dwc2_hcd_reinit(hsotg);
spin_lock_irqsave(&hsotg->lock, flags);
- }
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_PARTIAL) {
/*
* Set HW accessible bit before powering on the controller
* since an interrupt may rise.
*/
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ break;
+ default:
+ hsotg->lx_state = DWC2_L0;
+ goto unlock;
+ }
+ /* Change Root port status, as port status change occurred after resume.*/
+ hsotg->flags.b.port_suspend_change = 1;
- /* Exit partial_power_down */
- ret = dwc2_exit_partial_power_down(hsotg, true);
- if (ret && (ret != -ENOTSUPP))
- dev_err(hsotg->dev, "exit partial_power_down failed\n");
- } else {
- pcgctl = readl(hsotg->regs + PCGCTL);
- pcgctl &= ~PCGCTL_STOPPCLK;
- writel(pcgctl, hsotg->regs + PCGCTL);
+ /*
+ * Enable power if not already done.
+ * This must not be spinlocked since duration
+ * of this call is unknown.
+ */
+ if (!IS_ERR_OR_NULL(hsotg->uphy)) {
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ usb_phy_set_suspend(hsotg->uphy, false);
+ spin_lock_irqsave(&hsotg->lock, flags);
}
- hsotg->lx_state = DWC2_L0;
-
+ /* Enable external vbus supply after resuming the port. */
spin_unlock_irqrestore(&hsotg->lock, flags);
+ dwc2_vbus_supply_init(hsotg);
- if (hsotg->bus_suspended) {
- spin_lock_irqsave(&hsotg->lock, flags);
- hsotg->flags.b.port_suspend_change = 1;
- spin_unlock_irqrestore(&hsotg->lock, flags);
- dwc2_port_resume(hsotg);
- } else {
- if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_PARTIAL) {
- dwc2_vbus_supply_init(hsotg);
-
- /* Wait for controller to correctly update D+/D- level */
- usleep_range(3000, 5000);
- }
+ /* Wait for controller to correctly update D+/D- level */
+ usleep_range(3000, 5000);
+ spin_lock_irqsave(&hsotg->lock, flags);
- /*
- * Clear Port Enable and Port Status changes.
- * Enable Port Power.
- */
- dwc2_writel(hsotg, HPRT0_PWR | HPRT0_CONNDET |
- HPRT0_ENACHG, HPRT0);
- /* Wait for controller to detect Port Connect */
- usleep_range(5000, 7000);
- }
+ /*
+ * Clear Port Enable and Port Status changes.
+ * Enable Port Power.
+ */
+ dwc2_writel(hsotg, HPRT0_PWR | HPRT0_CONNDET |
+ HPRT0_ENACHG, HPRT0);
- return ret;
+ /* Wait for controller to detect Port Connect */
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ usleep_range(5000, 7000);
+ spin_lock_irqsave(&hsotg->lock, flags);
unlock:
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -4565,12 +4651,41 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
struct dwc2_qh *qh;
bool qh_allocated = false;
struct dwc2_qtd *qtd;
+ struct dwc2_gregs_backup *gr;
+
+ gr = &hsotg->gr_backup;
if (dbg_urb(urb)) {
dev_vdbg(hsotg->dev, "DWC OTG HCD URB Enqueue\n");
dwc2_dump_urb_info(hcd, urb, "urb_enqueue");
}
+ if (hsotg->hibernated) {
+ if (gr->gotgctl & GOTGCTL_CURMODE_HOST)
+ retval = dwc2_exit_hibernation(hsotg, 0, 0, 1);
+ else
+ retval = dwc2_exit_hibernation(hsotg, 0, 0, 0);
+
+ if (retval)
+ dev_err(hsotg->dev,
+ "exit hibernation failed.\n");
+ }
+
+ if (hsotg->in_ppd) {
+ retval = dwc2_exit_partial_power_down(hsotg, 0, true);
+ if (retval)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed\n");
+ }
+
+ if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_NONE &&
+ hsotg->bus_suspended) {
+ if (dwc2_is_device_mode(hsotg))
+ dwc2_gadget_exit_clock_gating(hsotg, 0);
+ else
+ dwc2_host_exit_clock_gating(hsotg, 0);
+ }
+
if (!ep)
return -EINVAL;
@@ -5580,7 +5695,15 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup,
return ret;
}
- dwc2_hcd_rem_wakeup(hsotg);
+ if (rem_wakeup) {
+ dwc2_hcd_rem_wakeup(hsotg);
+ /*
+ * Change "port_connect_status_change" flag to re-enumerate,
+ * because after exit from hibernation port connection status
+ * is not detected.
+ */
+ hsotg->flags.b.port_connect_status_change = 1;
+ }
hsotg->hibernated = 0;
hsotg->bus_suspended = 0;
@@ -5607,3 +5730,249 @@ bool dwc2_host_can_poweroff_phy(struct dwc2_hsotg *dwc2)
/* No reason to keep the PHY powered, so allow poweroff */
return true;
}
+
+/**
+ * dwc2_host_enter_partial_power_down() - Put controller in partial
+ * power down.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
+ * Return: non-zero if failed to enter host partial power down.
+ *
+ * This function is for entering Host mode partial power down.
+ */
+int dwc2_host_enter_partial_power_down(struct dwc2_hsotg *hsotg)
+{
+ u32 pcgcctl;
+ u32 hprt0;
+ int ret = 0;
+
+ dev_dbg(hsotg->dev, "Entering host partial power down started.\n");
+
+ /* Put this port in suspend mode. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_SUSP;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+ udelay(5);
+
+ /* Wait for the HPRT0.PrtSusp register field to be set */
+ if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 3000))
+ dev_warn(hsotg->dev, "Suspend wasn't generated\n");
+
+ /* Backup all registers */
+ ret = dwc2_backup_global_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup global registers\n",
+ __func__);
+ return ret;
+ }
+
+ ret = dwc2_backup_host_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup host registers\n",
+ __func__);
+ return ret;
+ }
+
+ /*
+ * Clear any pending interrupts since dwc2 will not be able to
+ * clear them after entering partial_power_down.
+ */
+ dwc2_writel(hsotg, 0xffffffff, GINTSTS);
+
+ /* Put the controller in low power state */
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+
+ pcgcctl |= PCGCTL_PWRCLMP;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ udelay(5);
+
+ pcgcctl |= PCGCTL_RSTPDWNMODULE;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ udelay(5);
+
+ pcgcctl |= PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+
+ /* Set in_ppd flag to 1 as here core enters suspend. */
+ hsotg->in_ppd = 1;
+ hsotg->lx_state = DWC2_L2;
+ hsotg->bus_suspended = true;
+
+ dev_dbg(hsotg->dev, "Entering host partial power down completed.\n");
+
+ return ret;
+}
+
+/*
+ * dwc2_host_exit_partial_power_down() - Exit controller from host partial
+ * power down.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ * @rem_wakeup: indicates whether resume is initiated by Reset.
+ * @restore: indicates whether need to restore the registers or not.
+ *
+ * Return: non-zero if failed to exit host partial power down.
+ *
+ * This function is for exiting from Host mode partial power down.
+ */
+int dwc2_host_exit_partial_power_down(struct dwc2_hsotg *hsotg,
+ int rem_wakeup, bool restore)
+{
+ u32 pcgcctl;
+ int ret = 0;
+ u32 hprt0;
+
+ dev_dbg(hsotg->dev, "Exiting host partial power down started.\n");
+
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ pcgcctl &= ~PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ udelay(5);
+
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ pcgcctl &= ~PCGCTL_PWRCLMP;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+ udelay(5);
+
+ pcgcctl = dwc2_readl(hsotg, PCGCTL);
+ pcgcctl &= ~PCGCTL_RSTPDWNMODULE;
+ dwc2_writel(hsotg, pcgcctl, PCGCTL);
+
+ udelay(100);
+ if (restore) {
+ ret = dwc2_restore_global_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore registers\n",
+ __func__);
+ return ret;
+ }
+
+ ret = dwc2_restore_host_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore host registers\n",
+ __func__);
+ return ret;
+ }
+ }
+
+ /* Drive resume signaling and exit suspend mode on the port. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_RES;
+ hprt0 &= ~HPRT0_SUSP;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+ udelay(5);
+
+ if (!rem_wakeup) {
+ /* Stop driveing resume signaling on the port. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 &= ~HPRT0_RES;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+
+ hsotg->bus_suspended = false;
+ } else {
+ /* Turn on the port power bit. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_PWR;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+
+ /* Connect hcd. */
+ dwc2_hcd_connect(hsotg);
+
+ mod_timer(&hsotg->wkp_timer,
+ jiffies + msecs_to_jiffies(71));
+ }
+
+ /* Set lx_state to and in_ppd to 0 as here core exits from suspend. */
+ hsotg->in_ppd = 0;
+ hsotg->lx_state = DWC2_L0;
+
+ dev_dbg(hsotg->dev, "Exiting host partial power down completed.\n");
+ return ret;
+}
+
+/**
+ * dwc2_host_enter_clock_gating() - Put controller in clock gating.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ *
+ * This function is for entering Host mode clock gating.
+ */
+void dwc2_host_enter_clock_gating(struct dwc2_hsotg *hsotg)
+{
+ u32 hprt0;
+ u32 pcgctl;
+
+ dev_dbg(hsotg->dev, "Entering host clock gating.\n");
+
+ /* Put this port in suspend mode. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_SUSP;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+
+ /* Set the Phy Clock bit as suspend is received. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl |= PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ /* Set the Gate hclk as suspend is received. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl |= PCGCTL_GATEHCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ hsotg->bus_suspended = true;
+ hsotg->lx_state = DWC2_L2;
+}
+
+/**
+ * dwc2_host_exit_clock_gating() - Exit controller from clock gating.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ * @rem_wakeup: indicates whether resume is initiated by remote wakeup
+ *
+ * This function is for exiting Host mode clock gating.
+ */
+void dwc2_host_exit_clock_gating(struct dwc2_hsotg *hsotg, int rem_wakeup)
+{
+ u32 hprt0;
+ u32 pcgctl;
+
+ dev_dbg(hsotg->dev, "Exiting host clock gating.\n");
+
+ /* Clear the Gate hclk. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl &= ~PCGCTL_GATEHCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ /* Phy Clock bit. */
+ pcgctl = dwc2_readl(hsotg, PCGCTL);
+ pcgctl &= ~PCGCTL_STOPPCLK;
+ dwc2_writel(hsotg, pcgctl, PCGCTL);
+ udelay(5);
+
+ /* Drive resume signaling and exit suspend mode on the port. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_RES;
+ hprt0 &= ~HPRT0_SUSP;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+ udelay(5);
+
+ if (!rem_wakeup) {
+ /* In case of port resume need to wait for 40 ms */
+ msleep(USB_RESUME_TIMEOUT);
+
+ /* Stop driveing resume signaling on the port. */
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 &= ~HPRT0_RES;
+ dwc2_writel(hsotg, hprt0, HPRT0);
+
+ hsotg->bus_suspended = false;
+ hsotg->lx_state = DWC2_L0;
+ } else {
+ mod_timer(&hsotg->wkp_timer,
+ jiffies + msecs_to_jiffies(71));
+ }
+}
diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c
index 68bbac64b753..621a4846bd05 100644
--- a/drivers/usb/dwc2/hcd_queue.c
+++ b/drivers/usb/dwc2/hcd_queue.c
@@ -59,7 +59,7 @@
#define DWC2_UNRESERVE_DELAY (msecs_to_jiffies(5))
/* If we get a NAK, wait this long before retrying */
-#define DWC2_RETRY_WAIT_DELAY 1*1E6L
+#define DWC2_RETRY_WAIT_DELAY (1 * 1E6L)
/**
* dwc2_periodic_channel_available() - Checks that a channel is available for a
diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h
index c3d6dde2aca4..6b16fbf98bc6 100644
--- a/drivers/usb/dwc2/hw.h
+++ b/drivers/usb/dwc2/hw.h
@@ -44,6 +44,7 @@
#define GOTGCTL_CHIRPEN BIT(27)
#define GOTGCTL_MULT_VALID_BC_MASK (0x1f << 22)
#define GOTGCTL_MULT_VALID_BC_SHIFT 22
+#define GOTGCTL_CURMODE_HOST BIT(21)
#define GOTGCTL_OTGVER BIT(20)
#define GOTGCTL_BSESVLD BIT(19)
#define GOTGCTL_ASESVLD BIT(18)
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 92df3d620f7d..7a6089fa81e1 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -232,6 +232,12 @@ const struct of_device_id dwc2_of_match_table[] = {
};
MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
+const struct acpi_device_id dwc2_acpi_match[] = {
+ { "BCM2848", (kernel_ulong_t)dwc2_set_bcm_params },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, dwc2_acpi_match);
+
static void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg)
{
u8 val;
@@ -866,10 +872,12 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
return 0;
}
+typedef void (*set_params_cb)(struct dwc2_hsotg *data);
+
int dwc2_init_params(struct dwc2_hsotg *hsotg)
{
const struct of_device_id *match;
- void (*set_params)(struct dwc2_hsotg *data);
+ set_params_cb set_params;
dwc2_set_default_params(hsotg);
dwc2_get_device_properties(hsotg);
@@ -878,6 +886,14 @@ int dwc2_init_params(struct dwc2_hsotg *hsotg)
if (match && match->data) {
set_params = match->data;
set_params(hsotg);
+ } else {
+ const struct acpi_device_id *amatch;
+
+ amatch = acpi_match_device(dwc2_acpi_match, hsotg->dev);
+ if (amatch && amatch->driver_data) {
+ set_params = (set_params_cb)amatch->driver_data;
+ set_params(hsotg);
+ }
}
dwc2_check_params(hsotg);
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 5f18acac7406..3024785d84cb 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -316,6 +316,39 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
static int dwc2_driver_remove(struct platform_device *dev)
{
struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
+ struct dwc2_gregs_backup *gr;
+ int ret = 0;
+
+ gr = &hsotg->gr_backup;
+
+ /* Exit Hibernation when driver is removed. */
+ if (hsotg->hibernated) {
+ if (gr->gotgctl & GOTGCTL_CURMODE_HOST)
+ ret = dwc2_exit_hibernation(hsotg, 0, 0, 1);
+ else
+ ret = dwc2_exit_hibernation(hsotg, 0, 0, 0);
+
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit hibernation failed.\n");
+ }
+
+ /* Exit Partial Power Down when driver is removed. */
+ if (hsotg->in_ppd) {
+ ret = dwc2_exit_partial_power_down(hsotg, 0, true);
+ if (ret)
+ dev_err(hsotg->dev,
+ "exit partial_power_down failed\n");
+ }
+
+ /* Exit clock gating when driver is removed. */
+ if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_NONE &&
+ hsotg->bus_suspended) {
+ if (dwc2_is_device_mode(hsotg))
+ dwc2_gadget_exit_clock_gating(hsotg, 0);
+ else
+ dwc2_host_exit_clock_gating(hsotg, 0);
+ }
dwc2_debugfs_exit(hsotg);
if (hsotg->hcd_enabled)
@@ -334,7 +367,7 @@ static int dwc2_driver_remove(struct platform_device *dev)
reset_control_assert(hsotg->reset);
reset_control_assert(hsotg->reset_ecc);
- return 0;
+ return ret;
}
/**
@@ -734,6 +767,7 @@ static struct platform_driver dwc2_platform_driver = {
.driver = {
.name = dwc2_driver_name,
.of_match_table = dwc2_of_match_table,
+ .acpi_match_table = ACPI_PTR(dwc2_acpi_match),
.pm = &dwc2_dev_pm_ops,
},
.probe = dwc2_driver_probe,
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 2133acf8ee69..66b1454c4db2 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -149,4 +149,13 @@ config USB_DWC3_IMX8MP
functionality.
Say 'Y' or 'M' if you have one such device.
+config USB_DWC3_XILINX
+ tristate "Xilinx Platforms"
+ depends on (ARCH_ZYNQMP || ARCH_VERSAL) && OF
+ default USB_DWC3
+ help
+ Support Xilinx SoCs with DesignWare Core USB3 IP.
+ This driver handles both ZynqMP and Versal SoC operations.
+ Say 'Y' or 'M' if you have one such device.
+
endif
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index 2259f8876fb2..2d499de6f66a 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -52,3 +52,4 @@ obj-$(CONFIG_USB_DWC3_OF_SIMPLE) += dwc3-of-simple.o
obj-$(CONFIG_USB_DWC3_ST) += dwc3-st.o
obj-$(CONFIG_USB_DWC3_QCOM) += dwc3-qcom.o
obj-$(CONFIG_USB_DWC3_IMX8MP) += dwc3-imx8mp.o
+obj-$(CONFIG_USB_DWC3_XILINX) += dwc3-xilinx.o
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index f2448d0a9d39..b6e53d8212cd 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -114,6 +114,8 @@ void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode)
dwc->current_dr_role = mode;
}
+static int dwc3_core_soft_reset(struct dwc3 *dwc);
+
static void __dwc3_set_mode(struct work_struct *work)
{
struct dwc3 *dwc = work_to_dwc(work);
@@ -121,6 +123,8 @@ static void __dwc3_set_mode(struct work_struct *work)
int ret;
u32 reg;
+ mutex_lock(&dwc->mutex);
+
pm_runtime_get_sync(dwc->dev);
if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_OTG)
@@ -154,6 +158,25 @@ static void __dwc3_set_mode(struct work_struct *work)
break;
}
+ /* For DRD host or device mode only */
+ if (dwc->desired_dr_role != DWC3_GCTL_PRTCAP_OTG) {
+ reg = dwc3_readl(dwc->regs, DWC3_GCTL);
+ reg |= DWC3_GCTL_CORESOFTRESET;
+ dwc3_writel(dwc->regs, DWC3_GCTL, reg);
+
+ /*
+ * Wait for internal clocks to synchronized. DWC_usb31 and
+ * DWC_usb32 may need at least 50ms (less for DWC_usb3). To
+ * keep it consistent across different IPs, let's wait up to
+ * 100ms before clearing GCTL.CORESOFTRESET.
+ */
+ msleep(100);
+
+ reg = dwc3_readl(dwc->regs, DWC3_GCTL);
+ reg &= ~DWC3_GCTL_CORESOFTRESET;
+ dwc3_writel(dwc->regs, DWC3_GCTL, reg);
+ }
+
spin_lock_irqsave(&dwc->lock, flags);
dwc3_set_prtcap(dwc, dwc->desired_dr_role);
@@ -178,6 +201,8 @@ static void __dwc3_set_mode(struct work_struct *work)
}
break;
case DWC3_GCTL_PRTCAP_DEVICE:
+ dwc3_core_soft_reset(dwc);
+
dwc3_event_buffers_setup(dwc);
if (dwc->usb2_phy)
@@ -200,6 +225,7 @@ static void __dwc3_set_mode(struct work_struct *work)
out:
pm_runtime_mark_last_busy(dwc->dev);
pm_runtime_put_autosuspend(dwc->dev);
+ mutex_unlock(&dwc->mutex);
}
void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
@@ -544,6 +570,9 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc)
parms->hwparams6 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS6);
parms->hwparams7 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS7);
parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8);
+
+ if (DWC3_IP_IS(DWC32))
+ parms->hwparams9 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS9);
}
static int dwc3_core_ulpi_init(struct dwc3 *dwc)
@@ -1238,6 +1267,8 @@ static void dwc3_get_properties(struct dwc3 *dwc)
u8 rx_max_burst_prd;
u8 tx_thr_num_pkt_prd;
u8 tx_max_burst_prd;
+ const char *usb_psy_name;
+ int ret;
/* default to highest possible threshold */
lpm_nyet_threshold = 0xf;
@@ -1263,6 +1294,13 @@ static void dwc3_get_properties(struct dwc3 *dwc)
else
dwc->sysdev = dwc->dev;
+ ret = device_property_read_string(dev, "usb-psy-name", &usb_psy_name);
+ if (ret >= 0) {
+ dwc->usb_psy = power_supply_get_by_name(usb_psy_name);
+ if (!dwc->usb_psy)
+ dev_err(dev, "couldn't get usb power supply\n");
+ }
+
dwc->has_lpm_erratum = device_property_read_bool(dev,
"snps,has-lpm-erratum");
device_property_read_u8(dev, "snps,lpm-nyet-threshold",
@@ -1277,6 +1315,8 @@ static void dwc3_get_properties(struct dwc3 *dwc)
"snps,usb3_lpm_capable");
dwc->usb2_lpm_disable = device_property_read_bool(dev,
"snps,usb2-lpm-disable");
+ dwc->usb2_gadget_lpm_disable = device_property_read_bool(dev,
+ "snps,usb2-gadget-lpm-disable");
device_property_read_u8(dev, "snps,rx-thr-num-pkt-prd",
&rx_thr_num_pkt_prd);
device_property_read_u8(dev, "snps,rx-max-burst-prd",
@@ -1385,7 +1425,6 @@ static void dwc3_check_params(struct dwc3 *dwc)
/* Check the maximum_speed parameter */
switch (dwc->maximum_speed) {
- case USB_SPEED_LOW:
case USB_SPEED_FULL:
case USB_SPEED_HIGH:
break;
@@ -1543,6 +1582,7 @@ static int dwc3_probe(struct platform_device *pdev)
dwc3_cache_hwparams(dwc);
spin_lock_init(&dwc->lock);
+ mutex_init(&dwc->mutex);
pm_runtime_set_active(dev);
pm_runtime_use_autosuspend(dev);
@@ -1619,6 +1659,9 @@ disable_clks:
assert_reset:
reset_control_assert(dwc->reset);
+ if (dwc->usb_psy)
+ power_supply_put(dwc->usb_psy);
+
return ret;
}
@@ -1641,9 +1684,17 @@ static int dwc3_remove(struct platform_device *pdev)
dwc3_free_event_buffers(dwc);
dwc3_free_scratch_buffers(dwc);
+ if (dwc->usb_psy)
+ power_supply_put(dwc->usb_psy);
+
return 0;
}
+static void dwc3_shutdown(struct platform_device *pdev)
+{
+ dwc3_remove(pdev);
+}
+
#ifdef CONFIG_PM
static int dwc3_core_init_for_resume(struct dwc3 *dwc)
{
@@ -1961,6 +2012,7 @@ MODULE_DEVICE_TABLE(acpi, dwc3_acpi_match);
static struct platform_driver dwc3_driver = {
.probe = dwc3_probe,
.remove = dwc3_remove,
+ .shutdown = dwc3_shutdown,
.driver = {
.name = "dwc3",
.of_match_table = of_match_ptr(of_dwc3_match),
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 052b20d52651..b1e875c58f20 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -13,6 +13,7 @@
#include <linux/device.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/ioport.h>
#include <linux/list.h>
#include <linux/bitops.h>
@@ -30,6 +31,8 @@
#include <linux/phy/phy.h>
+#include <linux/power_supply.h>
+
#define DWC3_MSG_MAX 500
/* Global constants */
@@ -140,6 +143,7 @@
#define DWC3_GHWPARAMS8 0xc600
#define DWC3_GUCTL3 0xc60c
#define DWC3_GFLADJ 0xc630
+#define DWC3_GHWPARAMS9 0xc680
/* Device Registers */
#define DWC3_DCFG 0xc700
@@ -375,6 +379,9 @@
#define DWC3_GHWPARAMS7_RAM1_DEPTH(n) ((n) & 0xffff)
#define DWC3_GHWPARAMS7_RAM2_DEPTH(n) (((n) >> 16) & 0xffff)
+/* Global HWPARAMS9 Register */
+#define DWC3_GHWPARAMS9_DEV_TXF_FLUSH_BYPASS BIT(0)
+
/* Global Frame Length Adjustment Register */
#define DWC3_GFLADJ_30MHZ_SDBND_SEL BIT(7)
#define DWC3_GFLADJ_30MHZ_MASK 0x3f
@@ -396,12 +403,12 @@
#define DWC3_DCFG_SUPERSPEED (4 << 0)
#define DWC3_DCFG_HIGHSPEED (0 << 0)
#define DWC3_DCFG_FULLSPEED BIT(0)
-#define DWC3_DCFG_LOWSPEED (2 << 0)
#define DWC3_DCFG_NUMP_SHIFT 17
#define DWC3_DCFG_NUMP(n) (((n) >> DWC3_DCFG_NUMP_SHIFT) & 0x1f)
#define DWC3_DCFG_NUMP_MASK (0x1f << DWC3_DCFG_NUMP_SHIFT)
#define DWC3_DCFG_LPM_CAP BIT(22)
+#define DWC3_DCFG_IGNSTRMPP BIT(23)
/* Device Control Register */
#define DWC3_DCTL_RUN_STOP BIT(31)
@@ -490,7 +497,6 @@
#define DWC3_DSTS_SUPERSPEED (4 << 0)
#define DWC3_DSTS_HIGHSPEED (0 << 0)
#define DWC3_DSTS_FULLSPEED BIT(0)
-#define DWC3_DSTS_LOWSPEED (2 << 0)
/* Device Generic Command Register */
#define DWC3_DGCMD_SET_LMP 0x01
@@ -855,13 +861,12 @@ struct dwc3_hwparams {
u32 hwparams6;
u32 hwparams7;
u32 hwparams8;
+ u32 hwparams9;
};
/* HWPARAMS0 */
#define DWC3_MODE(n) ((n) & 0x7)
-#define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8)
-
/* HWPARAMS1 */
#define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15)
@@ -908,11 +913,13 @@ struct dwc3_request {
unsigned int remaining;
unsigned int status;
-#define DWC3_REQUEST_STATUS_QUEUED 0
-#define DWC3_REQUEST_STATUS_STARTED 1
-#define DWC3_REQUEST_STATUS_CANCELLED 2
-#define DWC3_REQUEST_STATUS_COMPLETED 3
-#define DWC3_REQUEST_STATUS_UNKNOWN -1
+#define DWC3_REQUEST_STATUS_QUEUED 0
+#define DWC3_REQUEST_STATUS_STARTED 1
+#define DWC3_REQUEST_STATUS_DISCONNECTED 2
+#define DWC3_REQUEST_STATUS_DEQUEUED 3
+#define DWC3_REQUEST_STATUS_STALLED 4
+#define DWC3_REQUEST_STATUS_COMPLETED 5
+#define DWC3_REQUEST_STATUS_UNKNOWN -1
u8 epnum;
struct dwc3_trb *trb;
@@ -946,6 +953,7 @@ struct dwc3_scratchpad_array {
* @scratch_addr: dma address of scratchbuf
* @ep0_in_setup: one control transfer is completed and enter setup phase
* @lock: for synchronizing
+ * @mutex: for mode switching
* @dev: pointer to our struct device
* @sysdev: pointer to the DMA-capable device
* @xhci: pointer to our xHCI child
@@ -986,6 +994,7 @@ struct dwc3_scratchpad_array {
* @role_sw: usb_role_switch handle
* @role_switch_default_mode: default operation mode of controller while
* usb role is USB_ROLE_NONE.
+ * @usb_psy: pointer to power supply interface.
* @usb2_phy: pointer to USB2 PHY
* @usb3_phy: pointer to USB3 PHY
* @usb2_generic_phy: pointer to USB2 PHY
@@ -1034,7 +1043,8 @@ struct dwc3_scratchpad_array {
* @dis_start_transfer_quirk: set if start_transfer failure SW workaround is
* not needed for DWC_usb31 version 1.70a-ea06 and below
* @usb3_lpm_capable: set if hadrware supports Link Power Management
- * @usb2_lpm_disable: set to disable usb2 lpm
+ * @usb2_lpm_disable: set to disable usb2 lpm for host
+ * @usb2_gadget_lpm_disable: set to disable usb2 lpm for gadget
* @disable_scramble_quirk: set if we enable the disable scramble quirk
* @u2exit_lfps_quirk: set if we enable u2exit lfps quirk
* @u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
@@ -1085,6 +1095,9 @@ struct dwc3 {
/* device lock */
spinlock_t lock;
+ /* mode switching lock */
+ struct mutex mutex;
+
struct device *dev;
struct device *sysdev;
@@ -1125,6 +1138,8 @@ struct dwc3 {
struct usb_role_switch *role_sw;
enum usb_dr_mode role_switch_default_mode;
+ struct power_supply *usb_psy;
+
u32 fladj;
u32 irq_gadget;
u32 otg_irq;
@@ -1238,6 +1253,7 @@ struct dwc3 {
unsigned dis_start_transfer_quirk:1;
unsigned usb3_lpm_capable:1;
unsigned usb2_lpm_disable:1;
+ unsigned usb2_gadget_lpm_disable:1;
unsigned disable_scramble_quirk:1;
unsigned u2exit_lfps_quirk:1;
@@ -1455,6 +1471,23 @@ u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type);
(!(_ip##_VERSIONTYPE_##_to) || \
dwc->version_type <= _ip##_VERSIONTYPE_##_to))
+/**
+ * dwc3_mdwidth - get MDWIDTH value in bits
+ * @dwc: pointer to our context structure
+ *
+ * Return MDWIDTH configuration value in bits.
+ */
+static inline u32 dwc3_mdwidth(struct dwc3 *dwc)
+{
+ u32 mdwidth;
+
+ mdwidth = DWC3_GHWPARAMS0_MDWIDTH(dwc->hwparams.hwparams0);
+ if (DWC3_IP_IS(DWC32))
+ mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
+
+ return mdwidth;
+}
+
bool dwc3_has_imod(struct dwc3 *dwc);
int dwc3_event_buffers_setup(struct dwc3 *dwc);
diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index 8ab394942360..db231de46bb3 100644
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
-/**
+/*
* debug.h - DesignWare USB3 DRD Controller Debug Header
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 5da4f6082d93..7146ee2ac057 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* debugfs.c - DesignWare USB3 DRD Controller DebugFS file
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
@@ -638,16 +638,14 @@ static int dwc3_tx_fifo_size_show(struct seq_file *s, void *unused)
struct dwc3_ep *dep = s->private;
struct dwc3 *dwc = dep->dwc;
unsigned long flags;
- int mdwidth;
+ u32 mdwidth;
u32 val;
spin_lock_irqsave(&dwc->lock, flags);
val = dwc3_core_fifo_space(dep, DWC3_TXFIFO);
/* Convert to bytes */
- mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0);
- if (DWC3_IP_IS(DWC32))
- mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
+ mdwidth = dwc3_mdwidth(dwc);
val *= mdwidth;
val >>= 3;
@@ -662,16 +660,14 @@ static int dwc3_rx_fifo_size_show(struct seq_file *s, void *unused)
struct dwc3_ep *dep = s->private;
struct dwc3 *dwc = dep->dwc;
unsigned long flags;
- int mdwidth;
+ u32 mdwidth;
u32 val;
spin_lock_irqsave(&dwc->lock, flags);
val = dwc3_core_fifo_space(dep, DWC3_RXFIFO);
/* Convert to bytes */
- mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0);
- if (DWC3_IP_IS(DWC32))
- mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
+ mdwidth = dwc3_mdwidth(dwc);
val *= mdwidth;
val >>= 3;
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 90bb022737da..0ecf20eeceee 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* dwc3-exynos.c - Samsung Exynos DWC3 Specific Glue layer
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c
index 75f0042b998b..b13cfab89d53 100644
--- a/drivers/usb/dwc3/dwc3-imx8mp.c
+++ b/drivers/usb/dwc3/dwc3-imx8mp.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* dwc3-imx8mp.c - NXP imx8mp Specific Glue layer
*
* Copyright (c) 2020 NXP.
diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
index 057056c0975e..1317959294e6 100644
--- a/drivers/usb/dwc3/dwc3-keystone.c
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* dwc3-keystone.c - Keystone Specific Glue layer
*
* Copyright (C) 2010-2013 Texas Instruments Incorporated - https://www.ti.com
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index e62ecd22b3ed..71fd620c5161 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -172,7 +172,6 @@ static const struct dev_pm_ops dwc3_of_simple_dev_pm_ops = {
static const struct of_device_id of_dwc3_simple_match[] = {
{ .compatible = "rockchip,rk3399-dwc3" },
- { .compatible = "xlnx,zynqmp-dwc3" },
{ .compatible = "cavium,octeon-7130-usb-uctl" },
{ .compatible = "sprd,sc9860-dwc3" },
{ .compatible = "allwinner,sun50i-h6-dwc3" },
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 4c5c6972124a..e7b932dcbf82 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* dwc3-pci.c - PCI Specific glue layer
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
@@ -41,6 +41,7 @@
#define PCI_DEVICE_ID_INTEL_TGPH 0x43ee
#define PCI_DEVICE_ID_INTEL_JSP 0x4dee
#define PCI_DEVICE_ID_INTEL_ADLP 0x51ee
+#define PCI_DEVICE_ID_INTEL_ADLM 0x54ee
#define PCI_DEVICE_ID_INTEL_ADLS 0x7ae1
#define PCI_DEVICE_ID_INTEL_TGL 0x9a15
@@ -388,6 +389,9 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLP),
(kernel_ulong_t) &dwc3_pci_intel_swnode, },
+ { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLM),
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },
+
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLS),
(kernel_ulong_t) &dwc3_pci_intel_swnode, },
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 3de291ab951a..49e6ca94486d 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -235,7 +235,7 @@ static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom)
/**
* dwc3_qcom_interconnect_init() - Get interconnect path handles
- * and set bandwidhth.
+ * and set bandwidth.
* @qcom: Pointer to the concerned usb core.
*
*/
@@ -647,7 +647,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int ret;
- dwc3_np = of_get_child_by_name(np, "dwc3");
+ dwc3_np = of_get_compatible_child(np, "snps,dwc3");
if (!dwc3_np) {
dev_err(dev, "failed to find dwc3 core child\n");
return -ENODEV;
@@ -774,7 +774,6 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
qcom->qscratch_base = devm_ioremap_resource(dev, parent_res);
if (IS_ERR(qcom->qscratch_base)) {
- dev_err(dev, "failed to map qscratch, err=%d\n", ret);
ret = PTR_ERR(qcom->qscratch_base);
goto clk_disable;
}
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index b06b7092b1a2..166b5bde45cb 100644
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0+
-/**
+/*
* dwc3-st.c Support for dwc3 platform devices on ST Microelectronics platforms
*
* This is a small driver for the dwc3 to provide the glue logic
diff --git a/drivers/usb/dwc3/dwc3-xilinx.c b/drivers/usb/dwc3/dwc3-xilinx.c
new file mode 100644
index 000000000000..9cc3ad701a29
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-xilinx.c
@@ -0,0 +1,337 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dwc3-xilinx.c - Xilinx DWC3 controller specific glue driver
+ *
+ * Authors: Manish Narani <manish.narani@xilinx.com>
+ * Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+#include <linux/of_address.h>
+#include <linux/delay.h>
+#include <linux/firmware/xlnx-zynqmp.h>
+#include <linux/io.h>
+
+#include <linux/phy/phy.h>
+
+/* USB phy reset mask register */
+#define XLNX_USB_PHY_RST_EN 0x001C
+#define XLNX_PHY_RST_MASK 0x1
+
+/* Xilinx USB 3.0 IP Register */
+#define XLNX_USB_TRAFFIC_ROUTE_CONFIG 0x005C
+#define XLNX_USB_TRAFFIC_ROUTE_FPD 0x1
+
+/* Versal USB Reset ID */
+#define VERSAL_USB_RESET_ID 0xC104036
+
+#define XLNX_USB_FPD_PIPE_CLK 0x7c
+#define PIPE_CLK_DESELECT 1
+#define PIPE_CLK_SELECT 0
+#define XLNX_USB_FPD_POWER_PRSNT 0x80
+#define FPD_POWER_PRSNT_OPTION BIT(0)
+
+struct dwc3_xlnx {
+ int num_clocks;
+ struct clk_bulk_data *clks;
+ struct device *dev;
+ void __iomem *regs;
+ int (*pltfm_init)(struct dwc3_xlnx *data);
+};
+
+static void dwc3_xlnx_mask_phy_rst(struct dwc3_xlnx *priv_data, bool mask)
+{
+ u32 reg;
+
+ /*
+ * Enable or disable ULPI PHY reset from USB Controller.
+ * This does not actually reset the phy, but just controls
+ * whether USB controller can or cannot reset ULPI PHY.
+ */
+ reg = readl(priv_data->regs + XLNX_USB_PHY_RST_EN);
+
+ if (mask)
+ reg &= ~XLNX_PHY_RST_MASK;
+ else
+ reg |= XLNX_PHY_RST_MASK;
+
+ writel(reg, priv_data->regs + XLNX_USB_PHY_RST_EN);
+}
+
+static int dwc3_xlnx_init_versal(struct dwc3_xlnx *priv_data)
+{
+ struct device *dev = priv_data->dev;
+ int ret;
+
+ dwc3_xlnx_mask_phy_rst(priv_data, false);
+
+ /* Assert and De-assert reset */
+ ret = zynqmp_pm_reset_assert(VERSAL_USB_RESET_ID,
+ PM_RESET_ACTION_ASSERT);
+ if (ret < 0) {
+ dev_err_probe(dev, ret, "failed to assert Reset\n");
+ return ret;
+ }
+
+ ret = zynqmp_pm_reset_assert(VERSAL_USB_RESET_ID,
+ PM_RESET_ACTION_RELEASE);
+ if (ret < 0) {
+ dev_err_probe(dev, ret, "failed to De-assert Reset\n");
+ return ret;
+ }
+
+ dwc3_xlnx_mask_phy_rst(priv_data, true);
+
+ return 0;
+}
+
+static int dwc3_xlnx_init_zynqmp(struct dwc3_xlnx *priv_data)
+{
+ struct device *dev = priv_data->dev;
+ struct reset_control *crst, *hibrst, *apbrst;
+ struct phy *usb3_phy;
+ int ret;
+ u32 reg;
+
+ usb3_phy = devm_phy_get(dev, "usb3-phy");
+ if (PTR_ERR(usb3_phy) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto err;
+ } else if (IS_ERR(usb3_phy)) {
+ usb3_phy = NULL;
+ }
+
+ crst = devm_reset_control_get_exclusive(dev, "usb_crst");
+ if (IS_ERR(crst)) {
+ ret = PTR_ERR(crst);
+ dev_err_probe(dev, ret,
+ "failed to get core reset signal\n");
+ goto err;
+ }
+
+ hibrst = devm_reset_control_get_exclusive(dev, "usb_hibrst");
+ if (IS_ERR(hibrst)) {
+ ret = PTR_ERR(hibrst);
+ dev_err_probe(dev, ret,
+ "failed to get hibernation reset signal\n");
+ goto err;
+ }
+
+ apbrst = devm_reset_control_get_exclusive(dev, "usb_apbrst");
+ if (IS_ERR(apbrst)) {
+ ret = PTR_ERR(apbrst);
+ dev_err_probe(dev, ret,
+ "failed to get APB reset signal\n");
+ goto err;
+ }
+
+ ret = reset_control_assert(crst);
+ if (ret < 0) {
+ dev_err(dev, "Failed to assert core reset\n");
+ goto err;
+ }
+
+ ret = reset_control_assert(hibrst);
+ if (ret < 0) {
+ dev_err(dev, "Failed to assert hibernation reset\n");
+ goto err;
+ }
+
+ ret = reset_control_assert(apbrst);
+ if (ret < 0) {
+ dev_err(dev, "Failed to assert APB reset\n");
+ goto err;
+ }
+
+ ret = phy_init(usb3_phy);
+ if (ret < 0) {
+ phy_exit(usb3_phy);
+ goto err;
+ }
+
+ ret = reset_control_deassert(apbrst);
+ if (ret < 0) {
+ dev_err(dev, "Failed to release APB reset\n");
+ goto err;
+ }
+
+ /* Set PIPE Power Present signal in FPD Power Present Register*/
+ writel(FPD_POWER_PRSNT_OPTION, priv_data->regs + XLNX_USB_FPD_POWER_PRSNT);
+
+ /* Set the PIPE Clock Select bit in FPD PIPE Clock register */
+ writel(PIPE_CLK_SELECT, priv_data->regs + XLNX_USB_FPD_PIPE_CLK);
+
+ ret = reset_control_deassert(crst);
+ if (ret < 0) {
+ dev_err(dev, "Failed to release core reset\n");
+ goto err;
+ }
+
+ ret = reset_control_deassert(hibrst);
+ if (ret < 0) {
+ dev_err(dev, "Failed to release hibernation reset\n");
+ goto err;
+ }
+
+ ret = phy_power_on(usb3_phy);
+ if (ret < 0) {
+ phy_exit(usb3_phy);
+ goto err;
+ }
+
+ /*
+ * This routes the USB DMA traffic to go through FPD path instead
+ * of reaching DDR directly. This traffic routing is needed to
+ * make SMMU and CCI work with USB DMA.
+ */
+ if (of_dma_is_coherent(dev->of_node) || device_iommu_mapped(dev)) {
+ reg = readl(priv_data->regs + XLNX_USB_TRAFFIC_ROUTE_CONFIG);
+ reg |= XLNX_USB_TRAFFIC_ROUTE_FPD;
+ writel(reg, priv_data->regs + XLNX_USB_TRAFFIC_ROUTE_CONFIG);
+ }
+
+err:
+ return ret;
+}
+
+static const struct of_device_id dwc3_xlnx_of_match[] = {
+ {
+ .compatible = "xlnx,zynqmp-dwc3",
+ .data = &dwc3_xlnx_init_zynqmp,
+ },
+ {
+ .compatible = "xlnx,versal-dwc3",
+ .data = &dwc3_xlnx_init_versal,
+ },
+ { /* Sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dwc3_xlnx_of_match);
+
+static int dwc3_xlnx_probe(struct platform_device *pdev)
+{
+ struct dwc3_xlnx *priv_data;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ const struct of_device_id *match;
+ void __iomem *regs;
+ int ret;
+
+ priv_data = devm_kzalloc(dev, sizeof(*priv_data), GFP_KERNEL);
+ if (!priv_data)
+ return -ENOMEM;
+
+ regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(regs)) {
+ ret = PTR_ERR(regs);
+ dev_err_probe(dev, ret, "failed to map registers\n");
+ return ret;
+ }
+
+ match = of_match_node(dwc3_xlnx_of_match, pdev->dev.of_node);
+
+ priv_data->pltfm_init = match->data;
+ priv_data->regs = regs;
+ priv_data->dev = dev;
+
+ platform_set_drvdata(pdev, priv_data);
+
+ ret = devm_clk_bulk_get_all(priv_data->dev, &priv_data->clks);
+ if (ret < 0)
+ return ret;
+
+ priv_data->num_clocks = ret;
+
+ ret = clk_bulk_prepare_enable(priv_data->num_clocks, priv_data->clks);
+ if (ret)
+ return ret;
+
+ ret = priv_data->pltfm_init(priv_data);
+ if (ret)
+ goto err_clk_put;
+
+ ret = of_platform_populate(np, NULL, NULL, dev);
+ if (ret)
+ goto err_clk_put;
+
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+ pm_suspend_ignore_children(dev, false);
+ pm_runtime_get_sync(dev);
+
+ return 0;
+
+err_clk_put:
+ clk_bulk_disable_unprepare(priv_data->num_clocks, priv_data->clks);
+
+ return ret;
+}
+
+static int dwc3_xlnx_remove(struct platform_device *pdev)
+{
+ struct dwc3_xlnx *priv_data = platform_get_drvdata(pdev);
+ struct device *dev = &pdev->dev;
+
+ of_platform_depopulate(dev);
+
+ clk_bulk_disable_unprepare(priv_data->num_clocks, priv_data->clks);
+ priv_data->num_clocks = 0;
+
+ pm_runtime_disable(dev);
+ pm_runtime_put_noidle(dev);
+ pm_runtime_set_suspended(dev);
+
+ return 0;
+}
+
+static int __maybe_unused dwc3_xlnx_suspend_common(struct device *dev)
+{
+ struct dwc3_xlnx *priv_data = dev_get_drvdata(dev);
+
+ clk_bulk_disable(priv_data->num_clocks, priv_data->clks);
+
+ return 0;
+}
+
+static int __maybe_unused dwc3_xlnx_resume_common(struct device *dev)
+{
+ struct dwc3_xlnx *priv_data = dev_get_drvdata(dev);
+
+ return clk_bulk_enable(priv_data->num_clocks, priv_data->clks);
+}
+
+static int __maybe_unused dwc3_xlnx_runtime_idle(struct device *dev)
+{
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_autosuspend(dev);
+
+ return 0;
+}
+
+static UNIVERSAL_DEV_PM_OPS(dwc3_xlnx_dev_pm_ops, dwc3_xlnx_suspend_common,
+ dwc3_xlnx_resume_common, dwc3_xlnx_runtime_idle);
+
+static struct platform_driver dwc3_xlnx_driver = {
+ .probe = dwc3_xlnx_probe,
+ .remove = dwc3_xlnx_remove,
+ .driver = {
+ .name = "dwc3-xilinx",
+ .of_match_table = dwc3_xlnx_of_match,
+ .pm = &dwc3_xlnx_dev_pm_ops,
+ },
+};
+
+module_platform_driver(dwc3_xlnx_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Xilinx DWC3 controller specific glue driver");
+MODULE_AUTHOR("Manish Narani <manish.narani@xilinx.com>");
+MODULE_AUTHOR("Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>");
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index c7ef218e7a8c..dd80e5ca8c78 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -308,13 +308,12 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd,
}
if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) {
- int needs_wakeup;
+ int link_state;
- needs_wakeup = (dwc->link_state == DWC3_LINK_STATE_U1 ||
- dwc->link_state == DWC3_LINK_STATE_U2 ||
- dwc->link_state == DWC3_LINK_STATE_U3);
-
- if (unlikely(needs_wakeup)) {
+ link_state = dwc3_gadget_get_link_state(dwc);
+ if (link_state == DWC3_LINK_STATE_U1 ||
+ link_state == DWC3_LINK_STATE_U2 ||
+ link_state == DWC3_LINK_STATE_U3) {
ret = __dwc3_gadget_wakeup(dwc);
dev_WARN_ONCE(dwc->dev, ret, "wakeup failed --> %d\n",
ret);
@@ -608,12 +607,14 @@ static int dwc3_gadget_set_ep_config(struct dwc3_ep *dep, unsigned int action)
u8 bInterval_m1;
/*
- * Valid range for DEPCFG.bInterval_m1 is from 0 to 13, and it
- * must be set to 0 when the controller operates in full-speed.
+ * Valid range for DEPCFG.bInterval_m1 is from 0 to 13.
+ *
+ * NOTE: The programming guide incorrectly stated bInterval_m1
+ * must be set to 0 when operating in fullspeed. Internally the
+ * controller does not have this limitation. See DWC_usb3x
+ * programming guide section 3.2.2.1.
*/
bInterval_m1 = min_t(u8, desc->bInterval - 1, 13);
- if (dwc->gadget->speed == USB_SPEED_FULL)
- bInterval_m1 = 0;
if (usb_endpoint_type(desc) == USB_ENDPOINT_XFER_INT &&
dwc->gadget->speed == USB_SPEED_FULL)
@@ -729,8 +730,16 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep, unsigned int action)
* All stream eps will reinitiate stream on NoStream
* rejection until we can determine that the host can
* prime after the first transfer.
+ *
+ * However, if the controller is capable of
+ * TXF_FLUSH_BYPASS, then IN direction endpoints will
+ * automatically restart the stream without the driver
+ * initiation.
*/
- dep->flags |= DWC3_EP_FORCE_RESTART_STREAM;
+ if (!dep->direction ||
+ !(dwc->hwparams.hwparams9 &
+ DWC3_GHWPARAMS9_DEV_TXF_FLUSH_BYPASS))
+ dep->flags |= DWC3_EP_FORCE_RESTART_STREAM;
}
}
@@ -1402,7 +1411,7 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep)
dwc3_stop_active_transfer(dep, true, true);
list_for_each_entry_safe(req, tmp, &dep->started_list, list)
- dwc3_gadget_move_cancelled_request(req);
+ dwc3_gadget_move_cancelled_request(req, DWC3_REQUEST_STATUS_DEQUEUED);
/* If ep isn't started, then there's no end transfer pending */
if (!(dep->flags & DWC3_EP_END_TRANSFER_PENDING))
@@ -1729,10 +1738,25 @@ static void dwc3_gadget_ep_cleanup_cancelled_requests(struct dwc3_ep *dep)
{
struct dwc3_request *req;
struct dwc3_request *tmp;
+ struct dwc3 *dwc = dep->dwc;
list_for_each_entry_safe(req, tmp, &dep->cancelled_list, list) {
dwc3_gadget_ep_skip_trbs(dep, req);
- dwc3_gadget_giveback(dep, req, -ECONNRESET);
+ switch (req->status) {
+ case DWC3_REQUEST_STATUS_DISCONNECTED:
+ dwc3_gadget_giveback(dep, req, -ESHUTDOWN);
+ break;
+ case DWC3_REQUEST_STATUS_DEQUEUED:
+ dwc3_gadget_giveback(dep, req, -ECONNRESET);
+ break;
+ case DWC3_REQUEST_STATUS_STALLED:
+ dwc3_gadget_giveback(dep, req, -EPIPE);
+ break;
+ default:
+ dev_err(dwc->dev, "request cancelled with wrong reason:%d\n", req->status);
+ dwc3_gadget_giveback(dep, req, -ECONNRESET);
+ break;
+ }
}
}
@@ -1776,7 +1800,8 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep,
* cancelled.
*/
list_for_each_entry_safe(r, t, &dep->started_list, list)
- dwc3_gadget_move_cancelled_request(r);
+ dwc3_gadget_move_cancelled_request(r,
+ DWC3_REQUEST_STATUS_DEQUEUED);
dep->flags &= ~DWC3_EP_WAIT_TRANSFER_COMPLETE;
@@ -1848,7 +1873,7 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
dwc3_stop_active_transfer(dep, true, true);
list_for_each_entry_safe(req, tmp, &dep->started_list, list)
- dwc3_gadget_move_cancelled_request(req);
+ dwc3_gadget_move_cancelled_request(req, DWC3_REQUEST_STATUS_STALLED);
if (dep->flags & DWC3_EP_END_TRANSFER_PENDING) {
dep->flags |= DWC3_EP_PENDING_CLEAR_STALL;
@@ -1973,6 +1998,8 @@ static int __dwc3_gadget_wakeup(struct dwc3 *dwc)
case DWC3_LINK_STATE_RESET:
case DWC3_LINK_STATE_RX_DET: /* in HS, means Early Suspend */
case DWC3_LINK_STATE_U3: /* in HS, means SUSPEND */
+ case DWC3_LINK_STATE_U2: /* in HS, means Sleep (L1) */
+ case DWC3_LINK_STATE_U1:
case DWC3_LINK_STATE_RESUME:
break;
default:
@@ -2113,9 +2140,6 @@ static void __dwc3_gadget_set_speed(struct dwc3 *dwc)
reg |= DWC3_DCFG_SUPERSPEED;
} else {
switch (speed) {
- case USB_SPEED_LOW:
- reg |= DWC3_DCFG_LOWSPEED;
- break;
case USB_SPEED_FULL:
reg |= DWC3_DCFG_FULLSPEED;
break;
@@ -2340,9 +2364,7 @@ static void dwc3_gadget_setup_nump(struct dwc3 *dwc)
u32 reg;
ram2_depth = DWC3_GHWPARAMS7_RAM2_DEPTH(dwc->hwparams.hwparams7);
- mdwidth = DWC3_GHWPARAMS0_MDWIDTH(dwc->hwparams.hwparams0);
- if (DWC3_IP_IS(DWC32))
- mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
+ mdwidth = dwc3_mdwidth(dwc);
nump = ((ram2_depth * mdwidth / 8) - 24 - 16) / 1024;
nump = min_t(u32, nump, 16);
@@ -2388,6 +2410,17 @@ static int __dwc3_gadget_start(struct dwc3 *dwc)
dwc3_gadget_setup_nump(dwc);
+ /*
+ * Currently the controller handles single stream only. So, Ignore
+ * Packet Pending bit for stream selection and don't search for another
+ * stream if the host sends Data Packet with PP=0 (for OUT direction) or
+ * ACK with NumP=0 and PP=0 (for IN direction). This slightly improves
+ * the stream performance.
+ */
+ reg = dwc3_readl(dwc->regs, DWC3_DCFG);
+ reg |= DWC3_DCFG_IGNSTRMPP;
+ dwc3_writel(dwc->regs, DWC3_DCFG, reg);
+
/* Start with SuperSpeed Default */
dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
@@ -2531,11 +2564,19 @@ static void dwc3_gadget_set_ssp_rate(struct usb_gadget *g,
static int dwc3_gadget_vbus_draw(struct usb_gadget *g, unsigned int mA)
{
struct dwc3 *dwc = gadget_to_dwc(g);
+ union power_supply_propval val = {0};
+ int ret;
if (dwc->usb2_phy)
return usb_phy_set_power(dwc->usb2_phy, mA);
- return 0;
+ if (!dwc->usb_psy)
+ return -EOPNOTSUPP;
+
+ val.intval = 1000 * mA;
+ ret = power_supply_set_property(dwc->usb_psy, POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, &val);
+
+ return ret;
}
static const struct usb_gadget_ops dwc3_gadget_ops = {
@@ -2571,12 +2612,10 @@ static int dwc3_gadget_init_control_endpoint(struct dwc3_ep *dep)
static int dwc3_gadget_init_in_endpoint(struct dwc3_ep *dep)
{
struct dwc3 *dwc = dep->dwc;
- int mdwidth;
+ u32 mdwidth;
int size;
- mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0);
- if (DWC3_IP_IS(DWC32))
- mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
+ mdwidth = dwc3_mdwidth(dwc);
/* MDWIDTH is represented in bits, we need it in bytes */
mdwidth /= 8;
@@ -2618,12 +2657,10 @@ static int dwc3_gadget_init_in_endpoint(struct dwc3_ep *dep)
static int dwc3_gadget_init_out_endpoint(struct dwc3_ep *dep)
{
struct dwc3 *dwc = dep->dwc;
- int mdwidth;
+ u32 mdwidth;
int size;
- mdwidth = DWC3_MDWIDTH(dwc->hwparams.hwparams0);
- if (DWC3_IP_IS(DWC32))
- mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
+ mdwidth = dwc3_mdwidth(dwc);
/* MDWIDTH is represented in bits, convert to bytes */
mdwidth /= 8;
@@ -2913,6 +2950,11 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep,
static bool dwc3_gadget_ep_should_continue(struct dwc3_ep *dep)
{
struct dwc3_request *req;
+ struct dwc3 *dwc = dep->dwc;
+
+ if (!dep->endpoint.desc || !dwc->pullups_connected ||
+ !dwc->connected)
+ return false;
if (!list_empty(&dep->pending_list))
return true;
@@ -3323,6 +3365,15 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
u32 reg;
/*
+ * Ideally, dwc3_reset_gadget() would trigger the function
+ * drivers to stop any active transfers through ep disable.
+ * However, for functions which defer ep disable, such as mass
+ * storage, we will need to rely on the call to stop active
+ * transfers here, and avoid allowing of request queuing.
+ */
+ dwc->connected = false;
+
+ /*
* WORKAROUND: DWC3 revisions <1.88a have an issue which
* would cause a missing Disconnect Event if there's a
* pending Setup Packet in the FIFO.
@@ -3448,11 +3499,6 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
dwc->gadget->ep0->maxpacket = 64;
dwc->gadget->speed = USB_SPEED_FULL;
break;
- case DWC3_DSTS_LOWSPEED:
- dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(8);
- dwc->gadget->ep0->maxpacket = 8;
- dwc->gadget->speed = USB_SPEED_LOW;
- break;
}
dwc->eps[1]->endpoint.maxpacket = dwc->gadget->ep0->maxpacket;
@@ -3460,6 +3506,7 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
/* Enable USB2 LPM Capability */
if (!DWC3_VER_IS_WITHIN(DWC3, ANY, 194A) &&
+ !dwc->usb2_gadget_lpm_disable &&
(speed != DWC3_DSTS_SUPERSPEED) &&
(speed != DWC3_DSTS_SUPERSPEED_PLUS)) {
reg = dwc3_readl(dwc->regs, DWC3_DCFG);
@@ -3486,6 +3533,12 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
dwc3_gadget_dctl_write_safe(dwc, reg);
} else {
+ if (dwc->usb2_gadget_lpm_disable) {
+ reg = dwc3_readl(dwc->regs, DWC3_DCFG);
+ reg &= ~DWC3_DCFG_LPM_CAP;
+ dwc3_writel(dwc->regs, DWC3_DCFG, reg);
+ }
+
reg = dwc3_readl(dwc->regs, DWC3_DCTL);
reg &= ~DWC3_DCTL_HIRD_THRES_MASK;
dwc3_gadget_dctl_write_safe(dwc, reg);
@@ -3934,7 +3987,7 @@ int dwc3_gadget_init(struct dwc3 *dwc)
dwc->gadget->ssp_rate = USB_SSP_GEN_UNKNOWN;
dwc->gadget->sg_supported = true;
dwc->gadget->name = "dwc3-gadget";
- dwc->gadget->lpm_capable = true;
+ dwc->gadget->lpm_capable = !dwc->usb2_gadget_lpm_disable;
/*
* FIXME We might be setting max_speed to <SUPER, however versions
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 0cd281949970..77df4b6d6c13 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -90,15 +90,17 @@ static inline void dwc3_gadget_move_started_request(struct dwc3_request *req)
/**
* dwc3_gadget_move_cancelled_request - move @req to the cancelled_list
* @req: the request to be moved
+ * @reason: cancelled reason for the dwc3 request
*
* Caller should take care of locking. This function will move @req from its
* current list to the endpoint's cancelled_list.
*/
-static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req)
+static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req,
+ unsigned int reason)
{
struct dwc3_ep *dep = req->dep;
- req->status = DWC3_REQUEST_STATUS_CANCELLED;
+ req->status = reason;
list_move_tail(&req->list, &dep->cancelled_list);
}
diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h
index 76b73b116862..1e96ea339d48 100644
--- a/drivers/usb/dwc3/io.h
+++ b/drivers/usb/dwc3/io.h
@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
-/**
+/*
* io.h - DesignWare USB3 DRD IO Header
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
diff --git a/drivers/usb/dwc3/trace.c b/drivers/usb/dwc3/trace.c
index 1b45a9723eeb..088995885678 100644
--- a/drivers/usb/dwc3/trace.c
+++ b/drivers/usb/dwc3/trace.c
@@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
-/**
+/*
* trace.c - DesignWare USB3 DRD Controller Trace Support
*
* Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com
diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
index 97f4f1125a41..51d18e8d1602 100644
--- a/drivers/usb/dwc3/trace.h
+++ b/drivers/usb/dwc3/trace.h
@@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
-/**
+/*
* trace.h - DesignWare USB3 DRD Controller Trace Support
*
* Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com
@@ -32,8 +32,10 @@ DECLARE_EVENT_CLASS(dwc3_log_io,
__entry->offset = offset;
__entry->value = value;
),
- TP_printk("addr %p value %08x", __entry->base + __entry->offset,
- __entry->value)
+ TP_printk("addr %p offset %04x value %08x",
+ __entry->base + __entry->offset,
+ __entry->offset,
+ __entry->value)
);
DEFINE_EVENT(dwc3_log_io, dwc3_readl,
diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index 2d115353424c..8bb25773b61e 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -194,9 +194,13 @@ EXPORT_SYMBOL_GPL(usb_assign_descriptors);
void usb_free_all_descriptors(struct usb_function *f)
{
usb_free_descriptors(f->fs_descriptors);
+ f->fs_descriptors = NULL;
usb_free_descriptors(f->hs_descriptors);
+ f->hs_descriptors = NULL;
usb_free_descriptors(f->ss_descriptors);
+ f->ss_descriptors = NULL;
usb_free_descriptors(f->ssp_descriptors);
+ f->ssp_descriptors = NULL;
}
EXPORT_SYMBOL_GPL(usb_free_all_descriptors);
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 801a8b668a35..bf109191659a 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -2640,6 +2640,7 @@ static int __ffs_data_got_strings(struct ffs_data *ffs,
do { /* lang_count > 0 so we can use do-while */
unsigned needed = needed_count;
+ u32 str_per_lang = str_count;
if (len < 3)
goto error_free;
@@ -2675,7 +2676,7 @@ static int __ffs_data_got_strings(struct ffs_data *ffs,
data += length + 1;
len -= length + 1;
- } while (--str_count);
+ } while (--str_per_lang);
s->id = 0; /* terminator */
s->s = NULL;
@@ -3826,14 +3827,9 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len)
if (!len)
return NULL;
- data = kmalloc(len, GFP_KERNEL);
- if (!data)
- return ERR_PTR(-ENOMEM);
-
- if (copy_from_user(data, buf, len)) {
- kfree(data);
- return ERR_PTR(-EFAULT);
- }
+ data = memdup_user(buf, len);
+ if (IS_ERR(data))
+ return ERR_PTR(PTR_ERR(data));
pr_vdebug("Buffer from user space:\n");
ffs_dump_mem("", data, len);
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 950c9435beec..4a4703634a2a 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -351,8 +351,6 @@ static inline struct fsg_dev *fsg_from_func(struct usb_function *f)
return container_of(f, struct fsg_dev, function);
}
-typedef void (*fsg_routine_t)(struct fsg_dev *);
-
static int exception_in_progress(struct fsg_common *common)
{
return common->state > FSG_STATE_NORMAL;
diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c
index 61ce8e68f7a3..f47fdc1fa7f1 100644
--- a/drivers/usb/gadget/function/f_printer.c
+++ b/drivers/usb/gadget/function/f_printer.c
@@ -825,7 +825,7 @@ set_printer_interface(struct printer_dev *dev)
result = usb_ep_enable(dev->out_ep);
if (result != 0) {
- DBG(dev, "enable %s --> %d\n", dev->in_ep->name, result);
+ DBG(dev, "enable %s --> %d\n", dev->out_ep->name, result);
goto done;
}
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index 410fa89eae8f..7acb507946e6 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -1050,19 +1050,17 @@ static void usbg_cmd_work(struct work_struct *work)
tv_nexus = tpg->tpg_nexus;
dir = get_cmd_dir(cmd->cmd_buf);
if (dir < 0) {
- transport_init_se_cmd(se_cmd,
- tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
- tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
- cmd->prio_attr, cmd->sense_iu.sense,
- cmd->unpacked_lun);
+ __target_init_cmd(se_cmd,
+ tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
+ tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
+ cmd->prio_attr, cmd->sense_iu.sense,
+ cmd->unpacked_lun);
goto out;
}
- if (target_submit_cmd(se_cmd, tv_nexus->tvn_se_sess, cmd->cmd_buf,
- cmd->sense_iu.sense, cmd->unpacked_lun, 0,
- cmd->prio_attr, dir, flags) < 0)
- goto out;
-
+ target_submit_cmd(se_cmd, tv_nexus->tvn_se_sess, cmd->cmd_buf,
+ cmd->sense_iu.sense, cmd->unpacked_lun, 0,
+ cmd->prio_attr, dir, flags);
return;
out:
@@ -1181,19 +1179,17 @@ static void bot_cmd_work(struct work_struct *work)
tv_nexus = tpg->tpg_nexus;
dir = get_cmd_dir(cmd->cmd_buf);
if (dir < 0) {
- transport_init_se_cmd(se_cmd,
- tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
- tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
- cmd->prio_attr, cmd->sense_iu.sense,
- cmd->unpacked_lun);
+ __target_init_cmd(se_cmd,
+ tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
+ tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
+ cmd->prio_attr, cmd->sense_iu.sense,
+ cmd->unpacked_lun);
goto out;
}
- if (target_submit_cmd(se_cmd, tv_nexus->tvn_se_sess,
- cmd->cmd_buf, cmd->sense_iu.sense, cmd->unpacked_lun,
- cmd->data_len, cmd->prio_attr, dir, 0) < 0)
- goto out;
-
+ target_submit_cmd(se_cmd, tv_nexus->tvn_se_sess,
+ cmd->cmd_buf, cmd->sense_iu.sense, cmd->unpacked_lun,
+ cmd->data_len, cmd->prio_attr, dir, 0);
return;
out:
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 560382e0a8f3..d04707580068 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -19,6 +19,12 @@
#include "u_audio.h"
#include "u_uac1.h"
+/* UAC1 spec: 3.7.2.3 Audio Channel Cluster Format */
+#define UAC1_CHANNEL_MASK 0x0FFF
+
+#define EPIN_EN(_opts) ((_opts)->p_chmask != 0)
+#define EPOUT_EN(_opts) ((_opts)->c_chmask != 0)
+
struct f_uac1 {
struct g_audio g_audio;
u8 ac_intf, as_in_intf, as_out_intf;
@@ -30,6 +36,11 @@ static inline struct f_uac1 *func_to_uac1(struct usb_function *f)
return container_of(f, struct f_uac1, g_audio.func);
}
+static inline struct f_uac1_opts *g_audio_to_uac1_opts(struct g_audio *audio)
+{
+ return container_of(audio->func.fi, struct f_uac1_opts, func_inst);
+}
+
/*
* DESCRIPTORS ... most are static, but strings and full
* configuration descriptors are built on demand.
@@ -42,11 +53,6 @@ static inline struct f_uac1 *func_to_uac1(struct usb_function *f)
* USB-OUT -> IT_1 -> OT_2 -> ALSA_Capture
* ALSA_Playback -> IT_3 -> OT_4 -> USB-IN
*/
-#define F_AUDIO_AC_INTERFACE 0
-#define F_AUDIO_AS_OUT_INTERFACE 1
-#define F_AUDIO_AS_IN_INTERFACE 2
-/* Number of streaming interfaces */
-#define F_AUDIO_NUM_INTERFACES 2
/* B.3.1 Standard AC Interface Descriptor */
static struct usb_interface_descriptor ac_interface_desc = {
@@ -57,73 +63,47 @@ static struct usb_interface_descriptor ac_interface_desc = {
.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
};
-/*
- * The number of AudioStreaming and MIDIStreaming interfaces
- * in the Audio Interface Collection
- */
-DECLARE_UAC_AC_HEADER_DESCRIPTOR(2);
-
-#define UAC_DT_AC_HEADER_LENGTH UAC_DT_AC_HEADER_SIZE(F_AUDIO_NUM_INTERFACES)
-/* 2 input terminals and 2 output terminals */
-#define UAC_DT_TOTAL_LENGTH (UAC_DT_AC_HEADER_LENGTH \
- + 2*UAC_DT_INPUT_TERMINAL_SIZE + 2*UAC_DT_OUTPUT_TERMINAL_SIZE)
/* B.3.2 Class-Specific AC Interface Descriptor */
-static struct uac1_ac_header_descriptor_2 ac_header_desc = {
- .bLength = UAC_DT_AC_HEADER_LENGTH,
- .bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubtype = UAC_HEADER,
- .bcdADC = cpu_to_le16(0x0100),
- .wTotalLength = cpu_to_le16(UAC_DT_TOTAL_LENGTH),
- .bInCollection = F_AUDIO_NUM_INTERFACES,
- .baInterfaceNr = {
- /* Interface number of the AudioStream interfaces */
- [0] = 1,
- [1] = 2,
- }
-};
+static struct uac1_ac_header_descriptor *ac_header_desc;
-#define USB_OUT_IT_ID 1
static struct uac_input_terminal_descriptor usb_out_it_desc = {
.bLength = UAC_DT_INPUT_TERMINAL_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = UAC_INPUT_TERMINAL,
- .bTerminalID = USB_OUT_IT_ID,
+ /* .bTerminalID = DYNAMIC */
.wTerminalType = cpu_to_le16(UAC_TERMINAL_STREAMING),
.bAssocTerminal = 0,
.wChannelConfig = cpu_to_le16(0x3),
};
-#define IO_OUT_OT_ID 2
static struct uac1_output_terminal_descriptor io_out_ot_desc = {
.bLength = UAC_DT_OUTPUT_TERMINAL_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = UAC_OUTPUT_TERMINAL,
- .bTerminalID = IO_OUT_OT_ID,
+ /* .bTerminalID = DYNAMIC */
.wTerminalType = cpu_to_le16(UAC_OUTPUT_TERMINAL_SPEAKER),
.bAssocTerminal = 0,
- .bSourceID = USB_OUT_IT_ID,
+ /* .bSourceID = DYNAMIC */
};
-#define IO_IN_IT_ID 3
static struct uac_input_terminal_descriptor io_in_it_desc = {
.bLength = UAC_DT_INPUT_TERMINAL_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = UAC_INPUT_TERMINAL,
- .bTerminalID = IO_IN_IT_ID,
+ /* .bTerminalID = DYNAMIC */
.wTerminalType = cpu_to_le16(UAC_INPUT_TERMINAL_MICROPHONE),
.bAssocTerminal = 0,
.wChannelConfig = cpu_to_le16(0x3),
};
-#define USB_IN_OT_ID 4
static struct uac1_output_terminal_descriptor usb_in_ot_desc = {
.bLength = UAC_DT_OUTPUT_TERMINAL_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = UAC_OUTPUT_TERMINAL,
- .bTerminalID = USB_IN_OT_ID,
+ /* .bTerminalID = DYNAMIC */
.wTerminalType = cpu_to_le16(UAC_TERMINAL_STREAMING),
.bAssocTerminal = 0,
- .bSourceID = IO_IN_IT_ID,
+ /* .bSourceID = DYNAMIC */
};
/* B.4.1 Standard AS Interface Descriptor */
@@ -168,7 +148,7 @@ static struct uac1_as_header_descriptor as_out_header_desc = {
.bLength = UAC_DT_AS_HEADER_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = UAC_AS_GENERAL,
- .bTerminalLink = USB_OUT_IT_ID,
+ /* .bTerminalLink = DYNAMIC */
.bDelay = 1,
.wFormatTag = cpu_to_le16(UAC_FORMAT_TYPE_I_PCM),
};
@@ -177,7 +157,7 @@ static struct uac1_as_header_descriptor as_in_header_desc = {
.bLength = UAC_DT_AS_HEADER_SIZE,
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubtype = UAC_AS_GENERAL,
- .bTerminalLink = USB_IN_OT_ID,
+ /* .bTerminalLink = DYNAMIC */
.bDelay = 1,
.wFormatTag = cpu_to_le16(UAC_FORMAT_TYPE_I_PCM),
};
@@ -505,11 +485,144 @@ static void f_audio_disable(struct usb_function *f)
/*-------------------------------------------------------------------------*/
+static struct
+uac1_ac_header_descriptor *build_ac_header_desc(struct f_uac1_opts *opts)
+{
+ struct uac1_ac_header_descriptor *ac_desc;
+ int ac_header_desc_size;
+ int num_ifaces = 0;
+
+ if (EPOUT_EN(opts))
+ num_ifaces++;
+ if (EPIN_EN(opts))
+ num_ifaces++;
+
+ ac_header_desc_size = UAC_DT_AC_HEADER_SIZE(num_ifaces);
+
+ ac_desc = kzalloc(ac_header_desc_size, GFP_KERNEL);
+ if (!ac_desc)
+ return NULL;
+
+ ac_desc->bLength = ac_header_desc_size;
+ ac_desc->bDescriptorType = USB_DT_CS_INTERFACE;
+ ac_desc->bDescriptorSubtype = UAC_HEADER;
+ ac_desc->bcdADC = cpu_to_le16(0x0100);
+ ac_desc->bInCollection = num_ifaces;
+
+ /* wTotalLength and baInterfaceNr will be defined later */
+
+ return ac_desc;
+}
+
+/* Use macro to overcome line length limitation */
+#define USBDHDR(p) (struct usb_descriptor_header *)(p)
+
+static void setup_descriptor(struct f_uac1_opts *opts)
+{
+ /* patch descriptors */
+ int i = 1; /* ID's start with 1 */
+
+ if (EPOUT_EN(opts))
+ usb_out_it_desc.bTerminalID = i++;
+ if (EPIN_EN(opts))
+ io_in_it_desc.bTerminalID = i++;
+ if (EPOUT_EN(opts))
+ io_out_ot_desc.bTerminalID = i++;
+ if (EPIN_EN(opts))
+ usb_in_ot_desc.bTerminalID = i++;
+
+ usb_in_ot_desc.bSourceID = io_in_it_desc.bTerminalID;
+ io_out_ot_desc.bSourceID = usb_out_it_desc.bTerminalID;
+
+ as_out_header_desc.bTerminalLink = usb_out_it_desc.bTerminalID;
+ as_in_header_desc.bTerminalLink = usb_in_ot_desc.bTerminalID;
+
+ ac_header_desc->wTotalLength = cpu_to_le16(ac_header_desc->bLength);
+
+ if (EPIN_EN(opts)) {
+ u16 len = le16_to_cpu(ac_header_desc->wTotalLength);
+
+ len += sizeof(usb_in_ot_desc);
+ len += sizeof(io_in_it_desc);
+ ac_header_desc->wTotalLength = cpu_to_le16(len);
+ }
+ if (EPOUT_EN(opts)) {
+ u16 len = le16_to_cpu(ac_header_desc->wTotalLength);
+
+ len += sizeof(usb_out_it_desc);
+ len += sizeof(io_out_ot_desc);
+ ac_header_desc->wTotalLength = cpu_to_le16(len);
+ }
+
+ i = 0;
+ f_audio_desc[i++] = USBDHDR(&ac_interface_desc);
+ f_audio_desc[i++] = USBDHDR(ac_header_desc);
+
+ if (EPOUT_EN(opts)) {
+ f_audio_desc[i++] = USBDHDR(&usb_out_it_desc);
+ f_audio_desc[i++] = USBDHDR(&io_out_ot_desc);
+ }
+
+ if (EPIN_EN(opts)) {
+ f_audio_desc[i++] = USBDHDR(&io_in_it_desc);
+ f_audio_desc[i++] = USBDHDR(&usb_in_ot_desc);
+ }
+
+ if (EPOUT_EN(opts)) {
+ f_audio_desc[i++] = USBDHDR(&as_out_interface_alt_0_desc);
+ f_audio_desc[i++] = USBDHDR(&as_out_interface_alt_1_desc);
+ f_audio_desc[i++] = USBDHDR(&as_out_header_desc);
+ f_audio_desc[i++] = USBDHDR(&as_out_type_i_desc);
+ f_audio_desc[i++] = USBDHDR(&as_out_ep_desc);
+ f_audio_desc[i++] = USBDHDR(&as_iso_out_desc);
+ }
+ if (EPIN_EN(opts)) {
+ f_audio_desc[i++] = USBDHDR(&as_in_interface_alt_0_desc);
+ f_audio_desc[i++] = USBDHDR(&as_in_interface_alt_1_desc);
+ f_audio_desc[i++] = USBDHDR(&as_in_header_desc);
+ f_audio_desc[i++] = USBDHDR(&as_in_type_i_desc);
+ f_audio_desc[i++] = USBDHDR(&as_in_ep_desc);
+ f_audio_desc[i++] = USBDHDR(&as_iso_in_desc);
+ }
+ f_audio_desc[i] = NULL;
+}
+
+static int f_audio_validate_opts(struct g_audio *audio, struct device *dev)
+{
+ struct f_uac1_opts *opts = g_audio_to_uac1_opts(audio);
+
+ if (!opts->p_chmask && !opts->c_chmask) {
+ dev_err(dev, "Error: no playback and capture channels\n");
+ return -EINVAL;
+ } else if (opts->p_chmask & ~UAC1_CHANNEL_MASK) {
+ dev_err(dev, "Error: unsupported playback channels mask\n");
+ return -EINVAL;
+ } else if (opts->c_chmask & ~UAC1_CHANNEL_MASK) {
+ dev_err(dev, "Error: unsupported capture channels mask\n");
+ return -EINVAL;
+ } else if ((opts->p_ssize < 1) || (opts->p_ssize > 4)) {
+ dev_err(dev, "Error: incorrect playback sample size\n");
+ return -EINVAL;
+ } else if ((opts->c_ssize < 1) || (opts->c_ssize > 4)) {
+ dev_err(dev, "Error: incorrect capture sample size\n");
+ return -EINVAL;
+ } else if (!opts->p_srate) {
+ dev_err(dev, "Error: incorrect playback sampling rate\n");
+ return -EINVAL;
+ } else if (!opts->c_srate) {
+ dev_err(dev, "Error: incorrect capture sampling rate\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/* audio function driver setup/binding */
static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
struct usb_gadget *gadget = cdev->gadget;
+ struct device *dev = &gadget->dev;
struct f_uac1 *uac1 = func_to_uac1(f);
struct g_audio *audio = func_to_g_audio(f);
struct f_uac1_opts *audio_opts;
@@ -517,13 +630,23 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
struct usb_string *us;
u8 *sam_freq;
int rate;
+ int ba_iface_id;
int status;
+ status = f_audio_validate_opts(audio, dev);
+ if (status)
+ return status;
+
audio_opts = container_of(f->fi, struct f_uac1_opts, func_inst);
us = usb_gstrings_attach(cdev, uac1_strings, ARRAY_SIZE(strings_uac1));
if (IS_ERR(us))
return PTR_ERR(us);
+
+ ac_header_desc = build_ac_header_desc(audio_opts);
+ if (!ac_header_desc)
+ return -ENOMEM;
+
ac_interface_desc.iInterface = us[STR_AC_IF].id;
usb_out_it_desc.iTerminal = us[STR_USB_OUT_IT].id;
usb_out_it_desc.iChannelNames = us[STR_USB_OUT_IT_CH_NAMES].id;
@@ -564,40 +687,52 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
uac1->ac_intf = status;
uac1->ac_alt = 0;
- status = usb_interface_id(c, f);
- if (status < 0)
- goto fail;
- as_out_interface_alt_0_desc.bInterfaceNumber = status;
- as_out_interface_alt_1_desc.bInterfaceNumber = status;
- ac_header_desc.baInterfaceNr[0] = status;
- uac1->as_out_intf = status;
- uac1->as_out_alt = 0;
+ ba_iface_id = 0;
+
+ if (EPOUT_EN(audio_opts)) {
+ status = usb_interface_id(c, f);
+ if (status < 0)
+ goto fail;
+ as_out_interface_alt_0_desc.bInterfaceNumber = status;
+ as_out_interface_alt_1_desc.bInterfaceNumber = status;
+ ac_header_desc->baInterfaceNr[ba_iface_id++] = status;
+ uac1->as_out_intf = status;
+ uac1->as_out_alt = 0;
+ }
- status = usb_interface_id(c, f);
- if (status < 0)
- goto fail;
- as_in_interface_alt_0_desc.bInterfaceNumber = status;
- as_in_interface_alt_1_desc.bInterfaceNumber = status;
- ac_header_desc.baInterfaceNr[1] = status;
- uac1->as_in_intf = status;
- uac1->as_in_alt = 0;
+ if (EPIN_EN(audio_opts)) {
+ status = usb_interface_id(c, f);
+ if (status < 0)
+ goto fail;
+ as_in_interface_alt_0_desc.bInterfaceNumber = status;
+ as_in_interface_alt_1_desc.bInterfaceNumber = status;
+ ac_header_desc->baInterfaceNr[ba_iface_id++] = status;
+ uac1->as_in_intf = status;
+ uac1->as_in_alt = 0;
+ }
audio->gadget = gadget;
status = -ENODEV;
/* allocate instance-specific endpoints */
- ep = usb_ep_autoconfig(cdev->gadget, &as_out_ep_desc);
- if (!ep)
- goto fail;
- audio->out_ep = ep;
- audio->out_ep->desc = &as_out_ep_desc;
+ if (EPOUT_EN(audio_opts)) {
+ ep = usb_ep_autoconfig(cdev->gadget, &as_out_ep_desc);
+ if (!ep)
+ goto fail;
+ audio->out_ep = ep;
+ audio->out_ep->desc = &as_out_ep_desc;
+ }
- ep = usb_ep_autoconfig(cdev->gadget, &as_in_ep_desc);
- if (!ep)
- goto fail;
- audio->in_ep = ep;
- audio->in_ep->desc = &as_in_ep_desc;
+ if (EPIN_EN(audio_opts)) {
+ ep = usb_ep_autoconfig(cdev->gadget, &as_in_ep_desc);
+ if (!ep)
+ goto fail;
+ audio->in_ep = ep;
+ audio->in_ep->desc = &as_in_ep_desc;
+ }
+
+ setup_descriptor(audio_opts);
/* copy descriptors, and track endpoint copies */
status = usb_assign_descriptors(f, f_audio_desc, f_audio_desc, NULL,
@@ -624,6 +759,8 @@ static int f_audio_bind(struct usb_configuration *c, struct usb_function *f)
err_card_register:
usb_free_all_descriptors(f);
fail:
+ kfree(ac_header_desc);
+ ac_header_desc = NULL;
return status;
}
@@ -766,6 +903,9 @@ static void f_audio_unbind(struct usb_configuration *c, struct usb_function *f)
g_audio_cleanup(audio);
usb_free_all_descriptors(f);
+ kfree(ac_header_desc);
+ ac_header_desc = NULL;
+
audio->gadget = NULL;
}
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 6f03e944e0e3..7aa4c8bc5a1a 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -14,6 +14,9 @@
#include "u_audio.h"
#include "u_uac2.h"
+/* UAC2 spec: 4.1 Audio Channel Cluster Descriptor */
+#define UAC2_CHANNEL_MASK 0x07FFFFFF
+
/*
* The driver implements a simple UAC_2 topology.
* USB-OUT -> IT_1 -> OT_3 -> ALSA_Capture
@@ -284,6 +287,24 @@ static struct usb_endpoint_descriptor hs_epout_desc = {
.bInterval = 4,
};
+static struct usb_endpoint_descriptor ss_epout_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+
+ .bEndpointAddress = USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC,
+ /* .wMaxPacketSize = DYNAMIC */
+ .bInterval = 4,
+};
+
+static struct usb_ss_ep_comp_descriptor ss_epout_desc_comp = {
+ .bLength = sizeof(ss_epout_desc_comp),
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+ .bMaxBurst = 0,
+ .bmAttributes = 0,
+ /* wBytesPerInterval = DYNAMIC */
+};
+
/* CS AS ISO OUT Endpoint */
static struct uac2_iso_endpoint_descriptor as_iso_out_desc = {
.bLength = sizeof as_iso_out_desc,
@@ -361,6 +382,24 @@ static struct usb_endpoint_descriptor hs_epin_desc = {
.bInterval = 4,
};
+static struct usb_endpoint_descriptor ss_epin_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_ISOC | USB_ENDPOINT_SYNC_ASYNC,
+ /* .wMaxPacketSize = DYNAMIC */
+ .bInterval = 4,
+};
+
+static struct usb_ss_ep_comp_descriptor ss_epin_desc_comp = {
+ .bLength = sizeof(ss_epin_desc_comp),
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+ .bMaxBurst = 0,
+ .bmAttributes = 0,
+ /* wBytesPerInterval = DYNAMIC */
+};
+
/* CS AS ISO IN Endpoint */
static struct uac2_iso_endpoint_descriptor as_iso_in_desc = {
.bLength = sizeof as_iso_in_desc,
@@ -433,6 +472,38 @@ static struct usb_descriptor_header *hs_audio_desc[] = {
NULL,
};
+static struct usb_descriptor_header *ss_audio_desc[] = {
+ (struct usb_descriptor_header *)&iad_desc,
+ (struct usb_descriptor_header *)&std_ac_if_desc,
+
+ (struct usb_descriptor_header *)&ac_hdr_desc,
+ (struct usb_descriptor_header *)&in_clk_src_desc,
+ (struct usb_descriptor_header *)&out_clk_src_desc,
+ (struct usb_descriptor_header *)&usb_out_it_desc,
+ (struct usb_descriptor_header *)&io_in_it_desc,
+ (struct usb_descriptor_header *)&usb_in_ot_desc,
+ (struct usb_descriptor_header *)&io_out_ot_desc,
+
+ (struct usb_descriptor_header *)&std_as_out_if0_desc,
+ (struct usb_descriptor_header *)&std_as_out_if1_desc,
+
+ (struct usb_descriptor_header *)&as_out_hdr_desc,
+ (struct usb_descriptor_header *)&as_out_fmt1_desc,
+ (struct usb_descriptor_header *)&ss_epout_desc,
+ (struct usb_descriptor_header *)&ss_epout_desc_comp,
+ (struct usb_descriptor_header *)&as_iso_out_desc,
+
+ (struct usb_descriptor_header *)&std_as_in_if0_desc,
+ (struct usb_descriptor_header *)&std_as_in_if1_desc,
+
+ (struct usb_descriptor_header *)&as_in_hdr_desc,
+ (struct usb_descriptor_header *)&as_in_fmt1_desc,
+ (struct usb_descriptor_header *)&ss_epin_desc,
+ (struct usb_descriptor_header *)&ss_epin_desc_comp,
+ (struct usb_descriptor_header *)&as_iso_in_desc,
+ NULL,
+};
+
struct cntrl_cur_lay3 {
__le32 dCUR;
};
@@ -459,6 +530,7 @@ static int set_ep_max_packet_size(const struct f_uac2_opts *uac2_opts,
break;
case USB_SPEED_HIGH:
+ case USB_SPEED_SUPER:
max_size_ep = 1024;
factor = 8000;
break;
@@ -488,6 +560,72 @@ static int set_ep_max_packet_size(const struct f_uac2_opts *uac2_opts,
/* Use macro to overcome line length limitation */
#define USBDHDR(p) (struct usb_descriptor_header *)(p)
+static void setup_headers(struct f_uac2_opts *opts,
+ struct usb_descriptor_header **headers,
+ enum usb_device_speed speed)
+{
+ struct usb_ss_ep_comp_descriptor *epout_desc_comp = NULL;
+ struct usb_ss_ep_comp_descriptor *epin_desc_comp = NULL;
+ struct usb_endpoint_descriptor *epout_desc;
+ struct usb_endpoint_descriptor *epin_desc;
+ int i;
+
+ switch (speed) {
+ case USB_SPEED_FULL:
+ epout_desc = &fs_epout_desc;
+ epin_desc = &fs_epin_desc;
+ break;
+ case USB_SPEED_HIGH:
+ epout_desc = &hs_epout_desc;
+ epin_desc = &hs_epin_desc;
+ break;
+ default:
+ epout_desc = &ss_epout_desc;
+ epin_desc = &ss_epin_desc;
+ epout_desc_comp = &ss_epout_desc_comp;
+ epin_desc_comp = &ss_epin_desc_comp;
+ }
+
+ i = 0;
+ headers[i++] = USBDHDR(&iad_desc);
+ headers[i++] = USBDHDR(&std_ac_if_desc);
+ headers[i++] = USBDHDR(&ac_hdr_desc);
+ if (EPIN_EN(opts))
+ headers[i++] = USBDHDR(&in_clk_src_desc);
+ if (EPOUT_EN(opts)) {
+ headers[i++] = USBDHDR(&out_clk_src_desc);
+ headers[i++] = USBDHDR(&usb_out_it_desc);
+ }
+ if (EPIN_EN(opts)) {
+ headers[i++] = USBDHDR(&io_in_it_desc);
+ headers[i++] = USBDHDR(&usb_in_ot_desc);
+ }
+ if (EPOUT_EN(opts)) {
+ headers[i++] = USBDHDR(&io_out_ot_desc);
+ headers[i++] = USBDHDR(&std_as_out_if0_desc);
+ headers[i++] = USBDHDR(&std_as_out_if1_desc);
+ headers[i++] = USBDHDR(&as_out_hdr_desc);
+ headers[i++] = USBDHDR(&as_out_fmt1_desc);
+ headers[i++] = USBDHDR(epout_desc);
+ if (epout_desc_comp)
+ headers[i++] = USBDHDR(epout_desc_comp);
+
+ headers[i++] = USBDHDR(&as_iso_out_desc);
+ }
+ if (EPIN_EN(opts)) {
+ headers[i++] = USBDHDR(&std_as_in_if0_desc);
+ headers[i++] = USBDHDR(&std_as_in_if1_desc);
+ headers[i++] = USBDHDR(&as_in_hdr_desc);
+ headers[i++] = USBDHDR(&as_in_fmt1_desc);
+ headers[i++] = USBDHDR(epin_desc);
+ if (epin_desc_comp)
+ headers[i++] = USBDHDR(epin_desc_comp);
+
+ headers[i++] = USBDHDR(&as_iso_in_desc);
+ }
+ headers[i] = NULL;
+}
+
static void setup_descriptor(struct f_uac2_opts *opts)
{
/* patch descriptors */
@@ -537,71 +675,39 @@ static void setup_descriptor(struct f_uac2_opts *opts)
iad_desc.bInterfaceCount++;
}
- i = 0;
- fs_audio_desc[i++] = USBDHDR(&iad_desc);
- fs_audio_desc[i++] = USBDHDR(&std_ac_if_desc);
- fs_audio_desc[i++] = USBDHDR(&ac_hdr_desc);
- if (EPIN_EN(opts))
- fs_audio_desc[i++] = USBDHDR(&in_clk_src_desc);
- if (EPOUT_EN(opts)) {
- fs_audio_desc[i++] = USBDHDR(&out_clk_src_desc);
- fs_audio_desc[i++] = USBDHDR(&usb_out_it_desc);
- }
- if (EPIN_EN(opts)) {
- fs_audio_desc[i++] = USBDHDR(&io_in_it_desc);
- fs_audio_desc[i++] = USBDHDR(&usb_in_ot_desc);
- }
- if (EPOUT_EN(opts)) {
- fs_audio_desc[i++] = USBDHDR(&io_out_ot_desc);
- fs_audio_desc[i++] = USBDHDR(&std_as_out_if0_desc);
- fs_audio_desc[i++] = USBDHDR(&std_as_out_if1_desc);
- fs_audio_desc[i++] = USBDHDR(&as_out_hdr_desc);
- fs_audio_desc[i++] = USBDHDR(&as_out_fmt1_desc);
- fs_audio_desc[i++] = USBDHDR(&fs_epout_desc);
- fs_audio_desc[i++] = USBDHDR(&as_iso_out_desc);
- }
- if (EPIN_EN(opts)) {
- fs_audio_desc[i++] = USBDHDR(&std_as_in_if0_desc);
- fs_audio_desc[i++] = USBDHDR(&std_as_in_if1_desc);
- fs_audio_desc[i++] = USBDHDR(&as_in_hdr_desc);
- fs_audio_desc[i++] = USBDHDR(&as_in_fmt1_desc);
- fs_audio_desc[i++] = USBDHDR(&fs_epin_desc);
- fs_audio_desc[i++] = USBDHDR(&as_iso_in_desc);
- }
- fs_audio_desc[i] = NULL;
+ setup_headers(opts, fs_audio_desc, USB_SPEED_FULL);
+ setup_headers(opts, hs_audio_desc, USB_SPEED_HIGH);
+ setup_headers(opts, ss_audio_desc, USB_SPEED_SUPER);
+}
- i = 0;
- hs_audio_desc[i++] = USBDHDR(&iad_desc);
- hs_audio_desc[i++] = USBDHDR(&std_ac_if_desc);
- hs_audio_desc[i++] = USBDHDR(&ac_hdr_desc);
- if (EPIN_EN(opts))
- hs_audio_desc[i++] = USBDHDR(&in_clk_src_desc);
- if (EPOUT_EN(opts)) {
- hs_audio_desc[i++] = USBDHDR(&out_clk_src_desc);
- hs_audio_desc[i++] = USBDHDR(&usb_out_it_desc);
- }
- if (EPIN_EN(opts)) {
- hs_audio_desc[i++] = USBDHDR(&io_in_it_desc);
- hs_audio_desc[i++] = USBDHDR(&usb_in_ot_desc);
- }
- if (EPOUT_EN(opts)) {
- hs_audio_desc[i++] = USBDHDR(&io_out_ot_desc);
- hs_audio_desc[i++] = USBDHDR(&std_as_out_if0_desc);
- hs_audio_desc[i++] = USBDHDR(&std_as_out_if1_desc);
- hs_audio_desc[i++] = USBDHDR(&as_out_hdr_desc);
- hs_audio_desc[i++] = USBDHDR(&as_out_fmt1_desc);
- hs_audio_desc[i++] = USBDHDR(&hs_epout_desc);
- hs_audio_desc[i++] = USBDHDR(&as_iso_out_desc);
- }
- if (EPIN_EN(opts)) {
- hs_audio_desc[i++] = USBDHDR(&std_as_in_if0_desc);
- hs_audio_desc[i++] = USBDHDR(&std_as_in_if1_desc);
- hs_audio_desc[i++] = USBDHDR(&as_in_hdr_desc);
- hs_audio_desc[i++] = USBDHDR(&as_in_fmt1_desc);
- hs_audio_desc[i++] = USBDHDR(&hs_epin_desc);
- hs_audio_desc[i++] = USBDHDR(&as_iso_in_desc);
+static int afunc_validate_opts(struct g_audio *agdev, struct device *dev)
+{
+ struct f_uac2_opts *opts = g_audio_to_uac2_opts(agdev);
+
+ if (!opts->p_chmask && !opts->c_chmask) {
+ dev_err(dev, "Error: no playback and capture channels\n");
+ return -EINVAL;
+ } else if (opts->p_chmask & ~UAC2_CHANNEL_MASK) {
+ dev_err(dev, "Error: unsupported playback channels mask\n");
+ return -EINVAL;
+ } else if (opts->c_chmask & ~UAC2_CHANNEL_MASK) {
+ dev_err(dev, "Error: unsupported capture channels mask\n");
+ return -EINVAL;
+ } else if ((opts->p_ssize < 1) || (opts->p_ssize > 4)) {
+ dev_err(dev, "Error: incorrect playback sample size\n");
+ return -EINVAL;
+ } else if ((opts->c_ssize < 1) || (opts->c_ssize > 4)) {
+ dev_err(dev, "Error: incorrect capture sample size\n");
+ return -EINVAL;
+ } else if (!opts->p_srate) {
+ dev_err(dev, "Error: incorrect playback sampling rate\n");
+ return -EINVAL;
+ } else if (!opts->c_srate) {
+ dev_err(dev, "Error: incorrect capture sampling rate\n");
+ return -EINVAL;
}
- hs_audio_desc[i] = NULL;
+
+ return 0;
}
static int
@@ -612,11 +718,13 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
struct usb_composite_dev *cdev = cfg->cdev;
struct usb_gadget *gadget = cdev->gadget;
struct device *dev = &gadget->dev;
- struct f_uac2_opts *uac2_opts;
+ struct f_uac2_opts *uac2_opts = g_audio_to_uac2_opts(agdev);
struct usb_string *us;
int ret;
- uac2_opts = container_of(fn->fi, struct f_uac2_opts, func_inst);
+ ret = afunc_validate_opts(agdev, dev);
+ if (ret)
+ return ret;
us = usb_gstrings_attach(cdev, fn_strings, ARRAY_SIZE(strings_fn));
if (IS_ERR(us))
@@ -716,6 +824,20 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
return ret;
}
+ ret = set_ep_max_packet_size(uac2_opts, &ss_epin_desc, USB_SPEED_SUPER,
+ true);
+ if (ret < 0) {
+ dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
+ return ret;
+ }
+
+ ret = set_ep_max_packet_size(uac2_opts, &ss_epout_desc, USB_SPEED_SUPER,
+ false);
+ if (ret < 0) {
+ dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
+ return ret;
+ }
+
if (EPOUT_EN(uac2_opts)) {
agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc);
if (!agdev->out_ep) {
@@ -739,13 +861,20 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
le16_to_cpu(fs_epout_desc.wMaxPacketSize),
le16_to_cpu(hs_epout_desc.wMaxPacketSize));
+ agdev->in_ep_maxpsize = max_t(u16, agdev->in_ep_maxpsize,
+ le16_to_cpu(ss_epin_desc.wMaxPacketSize));
+ agdev->out_ep_maxpsize = max_t(u16, agdev->out_ep_maxpsize,
+ le16_to_cpu(ss_epout_desc.wMaxPacketSize));
+
hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
hs_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;
+ ss_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
+ ss_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;
setup_descriptor(uac2_opts);
- ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, NULL,
- NULL);
+ ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, ss_audio_desc,
+ ss_audio_desc);
if (ret)
return ret;
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index 44b4352a2676..f48a00e49794 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -633,7 +633,12 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
uvc_hs_streaming_ep.wMaxPacketSize =
cpu_to_le16(max_packet_size | ((max_packet_mult - 1) << 11));
- uvc_hs_streaming_ep.bInterval = opts->streaming_interval;
+
+ /* A high-bandwidth endpoint must specify a bInterval value of 1 */
+ if (max_packet_mult > 1)
+ uvc_hs_streaming_ep.bInterval = 1;
+ else
+ uvc_hs_streaming_ep.bInterval = opts->streaming_interval;
uvc_ss_streaming_ep.wMaxPacketSize = cpu_to_le16(max_packet_size);
uvc_ss_streaming_ep.bInterval = opts->streaming_interval;
@@ -817,6 +822,7 @@ static struct usb_function_instance *uvc_alloc_inst(void)
pd->bmControls[0] = 1;
pd->bmControls[1] = 0;
pd->iProcessing = 0;
+ pd->bmVideoStandards = 0;
od = &opts->uvc_output_terminal;
od->bLength = UVC_DT_OUTPUT_TERMINAL_SIZE;
diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c
index 265c4d805f81..5fbceee897a3 100644
--- a/drivers/usb/gadget/function/u_audio.c
+++ b/drivers/usb/gadget/function/u_audio.c
@@ -549,15 +549,15 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name,
if (err < 0)
goto snd_fail;
- strlcpy(pcm->name, pcm_name, sizeof(pcm->name));
+ strscpy(pcm->name, pcm_name, sizeof(pcm->name));
pcm->private_data = uac;
uac->pcm = pcm;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &uac_pcm_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &uac_pcm_ops);
- strlcpy(card->driver, card_name, sizeof(card->driver));
- strlcpy(card->shortname, card_name, sizeof(card->shortname));
+ strscpy(card->driver, card_name, sizeof(card->driver));
+ strscpy(card->shortname, card_name, sizeof(card->shortname));
sprintf(card->longname, "%s %i", card_name, card->dev->id);
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c
index 00fb58e50a15..cd28dec837dd 100644
--- a/drivers/usb/gadget/function/uvc_configfs.c
+++ b/drivers/usb/gadget/function/uvc_configfs.c
@@ -231,7 +231,7 @@ static struct config_item *uvcg_control_header_make(struct config_group *group,
h->desc.bLength = UVC_DT_HEADER_SIZE(1);
h->desc.bDescriptorType = USB_DT_CS_INTERFACE;
h->desc.bDescriptorSubType = UVC_VC_HEADER;
- h->desc.bcdUVC = cpu_to_le16(0x0100);
+ h->desc.bcdUVC = cpu_to_le16(0x0110);
h->desc.dwClockFrequency = cpu_to_le32(48000000);
config_item_init_type_name(&h->item, name, &uvcg_control_header_type);
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 71e7d10dd76b..cd8e2737947b 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -498,7 +498,8 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
iocb->private = NULL;
/* aio_complete() reports bytes-transferred _and_ faults */
- iocb->ki_complete(iocb, req->actual ? req->actual : req->status,
+ iocb->ki_complete(iocb,
+ req->actual ? req->actual : (long)req->status,
req->status);
} else {
/* ep_copy_to_user() won't report both; we hide some faults */
diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c
index 9ed22c5fb7fe..ac1741126619 100644
--- a/drivers/usb/gadget/legacy/mass_storage.c
+++ b/drivers/usb/gadget/legacy/mass_storage.c
@@ -175,8 +175,10 @@ static int msg_bind(struct usb_composite_dev *cdev)
struct usb_descriptor_header *usb_desc;
usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
- if (!usb_desc)
+ if (!usb_desc) {
+ status = -ENOMEM;
goto fail_string_ids;
+ }
usb_otg_descriptor_init(cdev->gadget, usb_desc);
otg_desc[0] = usb_desc;
otg_desc[1] = NULL;
diff --git a/drivers/usb/gadget/legacy/multi.c b/drivers/usb/gadget/legacy/multi.c
index ec9749845660..8db5c91ae47d 100644
--- a/drivers/usb/gadget/legacy/multi.c
+++ b/drivers/usb/gadget/legacy/multi.c
@@ -182,7 +182,7 @@ err_func_rndis:
return ret;
}
-static __ref int rndis_config_register(struct usb_composite_dev *cdev)
+static int rndis_config_register(struct usb_composite_dev *cdev)
{
static struct usb_configuration config = {
.bConfigurationValue = MULTI_RNDIS_CONFIG_NUM,
@@ -197,7 +197,7 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev)
#else
-static __ref int rndis_config_register(struct usb_composite_dev *cdev)
+static int rndis_config_register(struct usb_composite_dev *cdev)
{
return 0;
}
@@ -265,7 +265,7 @@ err_func_ecm:
return ret;
}
-static __ref int cdc_config_register(struct usb_composite_dev *cdev)
+static int cdc_config_register(struct usb_composite_dev *cdev)
{
static struct usb_configuration config = {
.bConfigurationValue = MULTI_CDC_CONFIG_NUM,
@@ -280,7 +280,7 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev)
#else
-static __ref int cdc_config_register(struct usb_composite_dev *cdev)
+static int cdc_config_register(struct usb_composite_dev *cdev)
{
return 0;
}
@@ -291,7 +291,7 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev)
/****************************** Gadget Bind ******************************/
-static int __ref multi_bind(struct usb_composite_dev *cdev)
+static int multi_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
#ifdef CONFIG_USB_G_MULTI_CDC
@@ -399,8 +399,10 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
struct usb_descriptor_header *usb_desc;
usb_desc = usb_otg_descriptor_alloc(gadget);
- if (!usb_desc)
+ if (!usb_desc) {
+ status = -ENOMEM;
goto fail_string_ids;
+ }
usb_otg_descriptor_init(gadget, usb_desc);
otg_desc[0] = usb_desc;
otg_desc[1] = NULL;
diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c
index a9f8eb8e1c76..94e22867da1d 100644
--- a/drivers/usb/gadget/legacy/webcam.c
+++ b/drivers/usb/gadget/legacy/webcam.c
@@ -90,7 +90,7 @@ static const struct UVC_HEADER_DESCRIPTOR(1) uvc_control_header = {
.bLength = UVC_DT_HEADER_SIZE(1),
.bDescriptorType = USB_DT_CS_INTERFACE,
.bDescriptorSubType = UVC_VC_HEADER,
- .bcdUVC = cpu_to_le16(0x0100),
+ .bcdUVC = cpu_to_le16(0x0110),
.wTotalLength = 0, /* dynamic */
.dwClockFrequency = cpu_to_le32(48000000),
.bInCollection = 0, /* dynamic */
@@ -125,6 +125,7 @@ static const struct uvc_processing_unit_descriptor uvc_processing = {
.bmControls[0] = 1,
.bmControls[1] = 0,
.iProcessing = 0,
+ .bmVideoStandards = 0,
};
static const struct uvc_output_terminal_descriptor uvc_output_terminal = {
diff --git a/drivers/usb/gadget/udc/aspeed-vhub/core.c b/drivers/usb/gadget/udc/aspeed-vhub/core.c
index be7bb64e3594..d11d3d14313f 100644
--- a/drivers/usb/gadget/udc/aspeed-vhub/core.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/core.c
@@ -36,6 +36,7 @@ void ast_vhub_done(struct ast_vhub_ep *ep, struct ast_vhub_req *req,
int status)
{
bool internal = req->internal;
+ struct ast_vhub *vhub = ep->vhub;
EPVDBG(ep, "completing request @%p, status %d\n", req, status);
@@ -46,7 +47,7 @@ void ast_vhub_done(struct ast_vhub_ep *ep, struct ast_vhub_req *req,
if (req->req.dma) {
if (!WARN_ON(!ep->dev))
- usb_gadget_unmap_request(&ep->dev->gadget,
+ usb_gadget_unmap_request_by_dev(&vhub->pdev->dev,
&req->req, ep->epn.is_in);
req->req.dma = 0;
}
diff --git a/drivers/usb/gadget/udc/aspeed-vhub/epn.c b/drivers/usb/gadget/udc/aspeed-vhub/epn.c
index 02d8bfae58fb..cb164c615e6f 100644
--- a/drivers/usb/gadget/udc/aspeed-vhub/epn.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/epn.c
@@ -376,7 +376,7 @@ static int ast_vhub_epn_queue(struct usb_ep* u_ep, struct usb_request *u_req,
if (ep->epn.desc_mode ||
((((unsigned long)u_req->buf & 7) == 0) &&
(ep->epn.is_in || !(u_req->length & (u_ep->maxpacket - 1))))) {
- rc = usb_gadget_map_request(&ep->dev->gadget, u_req,
+ rc = usb_gadget_map_request_by_dev(&vhub->pdev->dev, u_req,
ep->epn.is_in);
if (rc) {
dev_warn(&vhub->pdev->dev,
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 57067763b100..7db773c87379 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -903,6 +903,21 @@ static int dummy_pullup(struct usb_gadget *_gadget, int value)
spin_lock_irqsave(&dum->lock, flags);
dum->pullup = (value != 0);
set_link_state(dum_hcd);
+ if (value == 0) {
+ /*
+ * Emulate synchronize_irq(): wait for callbacks to finish.
+ * This seems to be the best place to emulate the call to
+ * synchronize_irq() that's in usb_gadget_remove_driver().
+ * Doing it in dummy_udc_stop() would be too late since it
+ * is called after the unbind callback and unbind shouldn't
+ * be invoked until all the other callbacks are finished.
+ */
+ while (dum->callback_usage > 0) {
+ spin_unlock_irqrestore(&dum->lock, flags);
+ usleep_range(1000, 2000);
+ spin_lock_irqsave(&dum->lock, flags);
+ }
+ }
spin_unlock_irqrestore(&dum->lock, flags);
usb_hcd_poll_rh_status(dummy_hcd_to_hcd(dum_hcd));
@@ -1004,14 +1019,6 @@ static int dummy_udc_stop(struct usb_gadget *g)
spin_lock_irq(&dum->lock);
dum->ints_enabled = 0;
stop_activity(dum);
-
- /* emulate synchronize_irq(): wait for callbacks to finish */
- while (dum->callback_usage > 0) {
- spin_unlock_irq(&dum->lock);
- usleep_range(1000, 2000);
- spin_lock_irq(&dum->lock);
- }
-
dum->driver = NULL;
spin_unlock_irq(&dum->lock);
@@ -1866,7 +1873,7 @@ restart:
/* handle control requests */
if (ep == &dum->ep[0] && ep->setup_stage) {
struct usb_ctrlrequest setup;
- int value = 1;
+ int value;
setup = *(struct usb_ctrlrequest *) urb->setup_packet;
/* paranoia, in case of stale queued data */
diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index d6ca50f01985..fdca28e72a3b 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -338,15 +338,16 @@ static void fotg210_start_dma(struct fotg210_ep *ep,
} else {
buffer = req->req.buf + req->req.actual;
length = ioread32(ep->fotg210->reg +
- FOTG210_FIBCR(ep->epnum - 1));
- length &= FIBCR_BCFX;
+ FOTG210_FIBCR(ep->epnum - 1)) & FIBCR_BCFX;
+ if (length > req->req.length - req->req.actual)
+ length = req->req.length - req->req.actual;
}
} else {
buffer = req->req.buf + req->req.actual;
if (req->req.length - req->req.actual > ep->ep.maxpacket)
length = ep->ep.maxpacket;
else
- length = req->req.length;
+ length = req->req.length - req->req.actual;
}
d = dma_map_single(dev, buffer, length,
@@ -379,8 +380,7 @@ static void fotg210_ep0_queue(struct fotg210_ep *ep,
}
if (ep->dir_in) { /* if IN */
fotg210_start_dma(ep, req);
- if ((req->req.length == req->req.actual) ||
- (req->req.actual < ep->ep.maxpacket))
+ if (req->req.length == req->req.actual)
fotg210_done(ep, req, 0);
} else { /* OUT */
u32 value = ioread32(ep->fotg210->reg + FOTG210_DMISGR0);
@@ -820,7 +820,7 @@ static void fotg210_ep0in(struct fotg210_udc *fotg210)
if (req->req.length)
fotg210_start_dma(ep, req);
- if ((req->req.length - req->req.actual) < ep->ep.maxpacket)
+ if (req->req.actual == req->req.length)
fotg210_done(ep, req, 0);
} else {
fotg210_set_cxdone(fotg210);
@@ -849,12 +849,16 @@ static void fotg210_out_fifo_handler(struct fotg210_ep *ep)
{
struct fotg210_request *req = list_entry(ep->queue.next,
struct fotg210_request, queue);
+ int disgr1 = ioread32(ep->fotg210->reg + FOTG210_DISGR1);
fotg210_start_dma(ep, req);
- /* finish out transfer */
+ /* Complete the request when it's full or a short packet arrived.
+ * Like other drivers, short_not_ok isn't handled.
+ */
+
if (req->req.length == req->req.actual ||
- req->req.actual < ep->ep.maxpacket)
+ (disgr1 & DISGR1_SPK_INT(ep->epnum - 1)))
fotg210_done(ep, req, 0);
}
@@ -877,6 +881,8 @@ static irqreturn_t fotg210_irq(int irq, void *_fotg210)
int_grp2 &= ~int_msk2;
if (int_grp2 & DISGR2_USBRST_INT) {
+ usb_gadget_udc_reset(&fotg210->gadget,
+ fotg210->driver);
value = ioread32(reg);
value &= ~DISGR2_USBRST_INT;
iowrite32(value, reg);
@@ -1027,6 +1033,12 @@ static void fotg210_init(struct fotg210_udc *fotg210)
value &= ~DMCR_GLINT_EN;
iowrite32(value, fotg210->reg + FOTG210_DMCR);
+ /* enable only grp2 irqs we handle */
+ iowrite32(~(DISGR2_DMA_ERROR | DISGR2_RX0BYTE_INT | DISGR2_TX0BYTE_INT
+ | DISGR2_ISO_SEQ_ABORT_INT | DISGR2_ISO_SEQ_ERR_INT
+ | DISGR2_RESM_INT | DISGR2_SUSP_INT | DISGR2_USBRST_INT),
+ fotg210->reg + FOTG210_DMISGR2);
+
/* disable all fifo interrupt */
iowrite32(~(u32)0, fotg210->reg + FOTG210_DMISGR1);
diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
index 23a735641c3d..89f479b78d80 100644
--- a/drivers/usb/gadget/udc/net2272.c
+++ b/drivers/usb/gadget/udc/net2272.c
@@ -539,7 +539,6 @@ net2272_read_fifo(struct net2272_ep *ep, struct net2272_request *req)
int count;
int tmp;
int cleanup = 0;
- int status = -1;
dev_vdbg(ep->dev->dev, "read_fifo %s actual %d len %d\n",
ep->ep.name, req->req.actual, req->req.length);
@@ -591,6 +590,8 @@ net2272_read_fifo(struct net2272_ep *ep, struct net2272_request *req)
}
if (!list_empty(&ep->queue)) {
+ int status;
+
req = list_entry(ep->queue.next,
struct net2272_request, queue);
status = net2272_kick_dma(ep, req);
diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c
index a3c1fc924268..9bb7a9d7a2fb 100644
--- a/drivers/usb/gadget/udc/pch_udc.c
+++ b/drivers/usb/gadget/udc/pch_udc.c
@@ -8,11 +8,12 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/errno.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/machine.h>
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
-#include <linux/gpio/consumer.h>
#include <linux/irq.h>
#define PCH_VBUS_PERIOD 3000 /* VBUS polling period (msec) */
@@ -331,6 +332,7 @@ struct pch_vbus_gpio_data {
* @dma_addr: DMA pool for received
* @setup_data: Received setup data
* @base_addr: for mapped device memory
+ * @bar: PCI BAR used for mapped device memory
* @cfg_data: current cfg, intf, and alt in use
* @vbus_gpio: GPIO informaton for detecting VBUS
*/
@@ -353,6 +355,7 @@ struct pch_udc_dev {
dma_addr_t dma_addr;
struct usb_ctrlrequest setup_data;
void __iomem *base_addr;
+ unsigned short bar;
struct pch_udc_cfg_data cfg_data;
struct pch_vbus_gpio_data vbus_gpio;
};
@@ -381,11 +384,8 @@ MODULE_PARM_DESC(speed_fs, "true for Full speed operation");
* @td_data_last: last dma desc. of chain
* @queue: associated queue
* @dma_going: DMA in progress for request
- * @dma_mapped: DMA memory mapped for request
* @dma_done: DMA completed for request
* @chain_len: chain length
- * @buf: Buffer memory for align adjustment
- * @dma: DMA memory for align adjustment
*/
struct pch_udc_request {
struct usb_request req;
@@ -394,11 +394,8 @@ struct pch_udc_request {
struct pch_udc_data_dma_desc *td_data_last;
struct list_head queue;
unsigned dma_going:1,
- dma_mapped:1,
dma_done:1;
unsigned chain_len;
- void *buf;
- dma_addr_t dma;
};
static inline u32 pch_udc_readl(struct pch_udc_dev *dev, unsigned long reg)
@@ -563,12 +560,13 @@ static void pch_udc_clear_disconnect(struct pch_udc_dev *dev)
pch_udc_bit_clr(dev, UDC_DEVCTL_ADDR, UDC_DEVCTL_RES);
}
+static void pch_udc_init(struct pch_udc_dev *dev);
+
/**
* pch_udc_reconnect() - This API initializes usb device controller,
* and clear the disconnect status.
* @dev: Reference to pch_udc_regs structure
*/
-static void pch_udc_init(struct pch_udc_dev *dev);
static void pch_udc_reconnect(struct pch_udc_dev *dev)
{
pch_udc_init(dev);
@@ -596,18 +594,22 @@ static void pch_udc_reconnect(struct pch_udc_dev *dev)
static inline void pch_udc_vbus_session(struct pch_udc_dev *dev,
int is_active)
{
+ unsigned long iflags;
+
+ spin_lock_irqsave(&dev->lock, iflags);
if (is_active) {
pch_udc_reconnect(dev);
dev->vbus_session = 1;
} else {
if (dev->driver && dev->driver->disconnect) {
- spin_lock(&dev->lock);
+ spin_unlock_irqrestore(&dev->lock, iflags);
dev->driver->disconnect(&dev->gadget);
- spin_unlock(&dev->lock);
+ spin_lock_irqsave(&dev->lock, iflags);
}
pch_udc_set_disconnect(dev);
dev->vbus_session = 0;
}
+ spin_unlock_irqrestore(&dev->lock, iflags);
}
/**
@@ -1166,20 +1168,25 @@ static int pch_udc_pcd_selfpowered(struct usb_gadget *gadget, int value)
static int pch_udc_pcd_pullup(struct usb_gadget *gadget, int is_on)
{
struct pch_udc_dev *dev;
+ unsigned long iflags;
if (!gadget)
return -EINVAL;
+
dev = container_of(gadget, struct pch_udc_dev, gadget);
+
+ spin_lock_irqsave(&dev->lock, iflags);
if (is_on) {
pch_udc_reconnect(dev);
} else {
if (dev->driver && dev->driver->disconnect) {
- spin_lock(&dev->lock);
+ spin_unlock_irqrestore(&dev->lock, iflags);
dev->driver->disconnect(&dev->gadget);
- spin_unlock(&dev->lock);
+ spin_lock_irqsave(&dev->lock, iflags);
}
pch_udc_set_disconnect(dev);
}
+ spin_unlock_irqrestore(&dev->lock, iflags);
return 0;
}
@@ -1360,6 +1367,7 @@ static irqreturn_t pch_vbus_gpio_irq(int irq, void *data)
*/
static int pch_vbus_gpio_init(struct pch_udc_dev *dev)
{
+ struct device *d = &dev->pdev->dev;
int err;
int irq_num = 0;
struct gpio_desc *gpiod;
@@ -1368,7 +1376,7 @@ static int pch_vbus_gpio_init(struct pch_udc_dev *dev)
dev->vbus_gpio.intr = 0;
/* Retrieve the GPIO line from the USB gadget device */
- gpiod = devm_gpiod_get(dev->gadget.dev.parent, NULL, GPIOD_IN);
+ gpiod = devm_gpiod_get_optional(d, NULL, GPIOD_IN);
if (IS_ERR(gpiod))
return PTR_ERR(gpiod);
gpiod_set_consumer_name(gpiod, "pch_vbus");
@@ -1428,33 +1436,7 @@ static void complete_req(struct pch_udc_ep *ep, struct pch_udc_request *req,
status = req->req.status;
dev = ep->dev;
- if (req->dma_mapped) {
- if (req->dma == DMA_ADDR_INVALID) {
- if (ep->in)
- dma_unmap_single(&dev->pdev->dev, req->req.dma,
- req->req.length,
- DMA_TO_DEVICE);
- else
- dma_unmap_single(&dev->pdev->dev, req->req.dma,
- req->req.length,
- DMA_FROM_DEVICE);
- req->req.dma = DMA_ADDR_INVALID;
- } else {
- if (ep->in)
- dma_unmap_single(&dev->pdev->dev, req->dma,
- req->req.length,
- DMA_TO_DEVICE);
- else {
- dma_unmap_single(&dev->pdev->dev, req->dma,
- req->req.length,
- DMA_FROM_DEVICE);
- memcpy(req->req.buf, req->buf, req->req.length);
- }
- kfree(req->buf);
- req->dma = DMA_ADDR_INVALID;
- }
- req->dma_mapped = 0;
- }
+ usb_gadget_unmap_request(&dev->gadget, &req->req, ep->in);
ep->halted = 1;
spin_unlock(&dev->lock);
if (!ep->in)
@@ -1532,12 +1514,9 @@ static int pch_udc_create_dma_chain(struct pch_udc_ep *ep,
if (req->chain_len > 1)
pch_udc_free_dma_chain(ep->dev, req);
- if (req->dma == DMA_ADDR_INVALID)
- td->dataptr = req->req.dma;
- else
- td->dataptr = req->dma;
-
+ td->dataptr = req->req.dma;
td->status = PCH_UDC_BS_HST_BSY;
+
for (; ; bytes -= buf_len, ++len) {
td->status = PCH_UDC_BS_HST_BSY | min(buf_len, bytes);
if (bytes <= buf_len)
@@ -1743,7 +1722,6 @@ static struct usb_request *pch_udc_alloc_request(struct usb_ep *usbep,
if (!req)
return NULL;
req->req.dma = DMA_ADDR_INVALID;
- req->dma = DMA_ADDR_INVALID;
INIT_LIST_HEAD(&req->queue);
if (!ep->dev->dma_addr)
return &req->req;
@@ -1756,7 +1734,7 @@ static struct usb_request *pch_udc_alloc_request(struct usb_ep *usbep,
}
/* prevent from using desc. - set HOST BUSY */
dma_desc->status |= PCH_UDC_BS_HST_BSY;
- dma_desc->dataptr = cpu_to_le32(DMA_ADDR_INVALID);
+ dma_desc->dataptr = lower_32_bits(DMA_ADDR_INVALID);
req->td_data = dma_desc;
req->td_data_last = dma_desc;
req->chain_len = 1;
@@ -1826,39 +1804,9 @@ static int pch_udc_pcd_queue(struct usb_ep *usbep, struct usb_request *usbreq,
return -ESHUTDOWN;
spin_lock_irqsave(&dev->lock, iflags);
/* map the buffer for dma */
- if (usbreq->length &&
- ((usbreq->dma == DMA_ADDR_INVALID) || !usbreq->dma)) {
- if (!((unsigned long)(usbreq->buf) & 0x03)) {
- if (ep->in)
- usbreq->dma = dma_map_single(&dev->pdev->dev,
- usbreq->buf,
- usbreq->length,
- DMA_TO_DEVICE);
- else
- usbreq->dma = dma_map_single(&dev->pdev->dev,
- usbreq->buf,
- usbreq->length,
- DMA_FROM_DEVICE);
- } else {
- req->buf = kzalloc(usbreq->length, GFP_ATOMIC);
- if (!req->buf) {
- retval = -ENOMEM;
- goto probe_end;
- }
- if (ep->in) {
- memcpy(req->buf, usbreq->buf, usbreq->length);
- req->dma = dma_map_single(&dev->pdev->dev,
- req->buf,
- usbreq->length,
- DMA_TO_DEVICE);
- } else
- req->dma = dma_map_single(&dev->pdev->dev,
- req->buf,
- usbreq->length,
- DMA_FROM_DEVICE);
- }
- req->dma_mapped = 1;
- }
+ retval = usb_gadget_map_request(&dev->gadget, usbreq, ep->in);
+ if (retval)
+ goto probe_end;
if (usbreq->length > 0) {
retval = prepare_dma(ep, req, GFP_ATOMIC);
if (retval)
@@ -2298,6 +2246,21 @@ static void pch_udc_svc_data_out(struct pch_udc_dev *dev, int ep_num)
pch_udc_set_dma(dev, DMA_DIR_RX);
}
+static int pch_udc_gadget_setup(struct pch_udc_dev *dev)
+ __must_hold(&dev->lock)
+{
+ int rc;
+
+ /* In some cases we can get an interrupt before driver gets setup */
+ if (!dev->driver)
+ return -ESHUTDOWN;
+
+ spin_unlock(&dev->lock);
+ rc = dev->driver->setup(&dev->gadget, &dev->setup_data);
+ spin_lock(&dev->lock);
+ return rc;
+}
+
/**
* pch_udc_svc_control_in() - Handle Control IN endpoint interrupts
* @dev: Reference to the device structure
@@ -2369,15 +2332,12 @@ static void pch_udc_svc_control_out(struct pch_udc_dev *dev)
dev->gadget.ep0 = &dev->ep[UDC_EP0IN_IDX].ep;
else /* OUT */
dev->gadget.ep0 = &ep->ep;
- spin_lock(&dev->lock);
/* If Mass storage Reset */
if ((dev->setup_data.bRequestType == 0x21) &&
(dev->setup_data.bRequest == 0xFF))
dev->prot_stall = 0;
/* call gadget with setup data received */
- setup_supported = dev->driver->setup(&dev->gadget,
- &dev->setup_data);
- spin_unlock(&dev->lock);
+ setup_supported = pch_udc_gadget_setup(dev);
if (dev->setup_data.bRequestType & USB_DIR_IN) {
ep->td_data->status = (ep->td_data->status &
@@ -2625,9 +2585,7 @@ static void pch_udc_svc_intf_interrupt(struct pch_udc_dev *dev)
dev->ep[i].halted = 0;
}
dev->stall = 0;
- spin_unlock(&dev->lock);
- dev->driver->setup(&dev->gadget, &dev->setup_data);
- spin_lock(&dev->lock);
+ pch_udc_gadget_setup(dev);
}
/**
@@ -2662,9 +2620,7 @@ static void pch_udc_svc_cfg_interrupt(struct pch_udc_dev *dev)
dev->stall = 0;
/* call gadget zero with setup data received */
- spin_unlock(&dev->lock);
- dev->driver->setup(&dev->gadget, &dev->setup_data);
- spin_lock(&dev->lock);
+ pch_udc_gadget_setup(dev);
}
/**
@@ -2870,14 +2826,20 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev)
* @dev: Reference to the driver structure
*
* Return codes:
- * 0: Success
+ * 0: Success
+ * -ERRNO: All kind of errors when retrieving VBUS GPIO
*/
static int pch_udc_pcd_init(struct pch_udc_dev *dev)
{
+ int ret;
+
pch_udc_init(dev);
pch_udc_pcd_reinit(dev);
- pch_vbus_gpio_init(dev);
- return 0;
+
+ ret = pch_vbus_gpio_init(dev);
+ if (ret)
+ pch_udc_exit(dev);
+ return ret;
}
/**
@@ -2938,7 +2900,7 @@ static int init_dma_pools(struct pch_udc_dev *dev)
dev->dma_addr = dma_map_single(&dev->pdev->dev, ep0out_buf,
UDC_EP0OUT_BUFF_SIZE * 4,
DMA_FROM_DEVICE);
- return 0;
+ return dma_mapping_error(&dev->pdev->dev, dev->dma_addr);
}
static int pch_udc_start(struct usb_gadget *g,
@@ -2976,6 +2938,38 @@ static int pch_udc_stop(struct usb_gadget *g)
return 0;
}
+static void pch_vbus_gpio_remove_table(void *table)
+{
+ gpiod_remove_lookup_table(table);
+}
+
+static int pch_vbus_gpio_add_table(struct device *d, void *table)
+{
+ gpiod_add_lookup_table(table);
+ return devm_add_action_or_reset(d, pch_vbus_gpio_remove_table, table);
+}
+
+static struct gpiod_lookup_table pch_udc_minnow_vbus_gpio_table = {
+ .dev_id = "0000:02:02.4",
+ .table = {
+ GPIO_LOOKUP("sch_gpio.33158", 12, NULL, GPIO_ACTIVE_HIGH),
+ {}
+ },
+};
+
+static int pch_udc_minnow_platform_init(struct device *d)
+{
+ return pch_vbus_gpio_add_table(d, &pch_udc_minnow_vbus_gpio_table);
+}
+
+static int pch_udc_quark_platform_init(struct device *d)
+{
+ struct pch_udc_dev *dev = dev_get_drvdata(d);
+
+ dev->bar = PCH_UDC_PCI_BAR_QUARK_X1000;
+ return 0;
+}
+
static void pch_udc_shutdown(struct pci_dev *pdev)
{
struct pch_udc_dev *dev = pci_get_drvdata(pdev);
@@ -3024,8 +3018,7 @@ static void pch_udc_remove(struct pci_dev *pdev)
pch_udc_exit(dev);
}
-#ifdef CONFIG_PM_SLEEP
-static int pch_udc_suspend(struct device *d)
+static int __maybe_unused pch_udc_suspend(struct device *d)
{
struct pch_udc_dev *dev = dev_get_drvdata(d);
@@ -3035,21 +3028,18 @@ static int pch_udc_suspend(struct device *d)
return 0;
}
-static int pch_udc_resume(struct device *d)
+static int __maybe_unused pch_udc_resume(struct device *d)
{
return 0;
}
static SIMPLE_DEV_PM_OPS(pch_udc_pm, pch_udc_suspend, pch_udc_resume);
-#define PCH_UDC_PM_OPS (&pch_udc_pm)
-#else
-#define PCH_UDC_PM_OPS NULL
-#endif /* CONFIG_PM_SLEEP */
-static int pch_udc_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
+typedef int (*platform_init_fn)(struct device *);
+
+static int pch_udc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
- int bar;
+ platform_init_fn platform_init = (platform_init_fn)id->driver_data;
int retval;
struct pch_udc_dev *dev;
@@ -3063,31 +3053,28 @@ static int pch_udc_probe(struct pci_dev *pdev,
if (retval)
return retval;
+ dev->bar = PCH_UDC_PCI_BAR;
+ dev->pdev = pdev;
pci_set_drvdata(pdev, dev);
- /* Determine BAR based on PCI ID */
- if (id->device == PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC)
- bar = PCH_UDC_PCI_BAR_QUARK_X1000;
- else
- bar = PCH_UDC_PCI_BAR;
+ /* Platform specific hook */
+ if (platform_init) {
+ retval = platform_init(&pdev->dev);
+ if (retval)
+ return retval;
+ }
/* PCI resource allocation */
- retval = pcim_iomap_regions(pdev, 1 << bar, pci_name(pdev));
+ retval = pcim_iomap_regions(pdev, BIT(dev->bar), pci_name(pdev));
if (retval)
return retval;
- dev->base_addr = pcim_iomap_table(pdev)[bar];
-
- /*
- * FIXME: add a GPIO descriptor table to pdev.dev using
- * gpiod_add_descriptor_table() from <linux/gpio/machine.h> based on
- * the PCI subsystem ID. The system-dependent GPIO is necessary for
- * VBUS operation.
- */
+ dev->base_addr = pcim_iomap_table(pdev)[dev->bar];
/* initialize the hardware */
- if (pch_udc_pcd_init(dev))
- return -ENODEV;
+ retval = pch_udc_pcd_init(dev);
+ if (retval)
+ return retval;
pci_enable_msi(pdev);
@@ -3104,7 +3091,6 @@ static int pch_udc_probe(struct pci_dev *pdev,
/* device struct setup */
spin_lock_init(&dev->lock);
- dev->pdev = pdev;
dev->gadget.ops = &pch_udc_ops;
retval = init_dma_pools(dev);
@@ -3128,10 +3114,17 @@ finished:
static const struct pci_device_id pch_udc_pcidev_id[] = {
{
- PCI_DEVICE(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC),
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC),
+ .class = PCI_CLASS_SERIAL_USB_DEVICE,
+ .class_mask = 0xffffffff,
+ .driver_data = (kernel_ulong_t)&pch_udc_quark_platform_init,
+ },
+ {
+ PCI_DEVICE_SUB(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC,
+ PCI_VENDOR_ID_CIRCUITCO, PCI_SUBSYSTEM_ID_CIRCUITCO_MINNOWBOARD),
.class = PCI_CLASS_SERIAL_USB_DEVICE,
.class_mask = 0xffffffff,
+ .driver_data = (kernel_ulong_t)&pch_udc_minnow_platform_init,
},
{
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC),
@@ -3160,7 +3153,7 @@ static struct pci_driver pch_udc_driver = {
.remove = pch_udc_remove,
.shutdown = pch_udc_shutdown,
.driver = {
- .pm = PCH_UDC_PM_OPS,
+ .pm = &pch_udc_pm,
},
};
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index 896c1a016d55..65cae4883454 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1849,6 +1849,8 @@ static int r8a66597_probe(struct platform_device *pdev)
return PTR_ERR(reg);
ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!ires)
+ return -EINVAL;
irq = ires->start;
irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index 1d3ebb07ccd4..b154b62abefa 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -54,8 +54,6 @@ static struct clk *udc_clock;
static struct clk *usb_bus_clock;
static void __iomem *base_addr;
static int irq_usbd;
-static u64 rsrc_start;
-static u64 rsrc_len;
static struct dentry *s3c2410_udc_debugfs_root;
static inline u32 udc_read(u32 reg)
@@ -1752,7 +1750,8 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
udc_clock = clk_get(NULL, "usb-device");
if (IS_ERR(udc_clock)) {
dev_err(dev, "failed to get udc clock source\n");
- return PTR_ERR(udc_clock);
+ retval = PTR_ERR(udc_clock);
+ goto err_usb_bus_clk;
}
clk_prepare_enable(udc_clock);
@@ -1775,7 +1774,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
base_addr = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base_addr)) {
retval = PTR_ERR(base_addr);
- goto err_mem;
+ goto err_udc_clk;
}
the_controller = udc;
@@ -1793,7 +1792,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
if (retval != 0) {
dev_err(dev, "cannot get irq %i, err %d\n", irq_usbd, retval);
retval = -EBUSY;
- goto err_map;
+ goto err_udc_clk;
}
dev_dbg(dev, "got irq %i\n", irq_usbd);
@@ -1864,10 +1863,14 @@ err_gpio_claim:
gpio_free(udc_info->vbus_pin);
err_int:
free_irq(irq_usbd, udc);
-err_map:
- iounmap(base_addr);
-err_mem:
- release_mem_region(rsrc_start, rsrc_len);
+err_udc_clk:
+ clk_disable_unprepare(udc_clock);
+ clk_put(udc_clock);
+ udc_clock = NULL;
+err_usb_bus_clk:
+ clk_disable_unprepare(usb_bus_clock);
+ clk_put(usb_bus_clock);
+ usb_bus_clock = NULL;
return retval;
}
@@ -1899,9 +1902,6 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
free_irq(irq_usbd, udc);
- iounmap(base_addr);
- release_mem_region(rsrc_start, rsrc_len);
-
if (!IS_ERR(udc_clock) && udc_clock != NULL) {
clk_disable_unprepare(udc_clock);
clk_put(udc_clock);
diff --git a/drivers/usb/gadget/udc/snps_udc_plat.c b/drivers/usb/gadget/udc/snps_udc_plat.c
index 32f1d3e90c26..99805d60a7ab 100644
--- a/drivers/usb/gadget/udc/snps_udc_plat.c
+++ b/drivers/usb/gadget/udc/snps_udc_plat.c
@@ -114,8 +114,8 @@ static int udc_plat_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
udc->virt_addr = devm_ioremap_resource(dev, res);
- if (IS_ERR(udc->regs))
- return PTR_ERR(udc->regs);
+ if (IS_ERR(udc->virt_addr))
+ return PTR_ERR(udc->virt_addr);
/* udc csr registers base */
udc->csr = udc->virt_addr + UDC_CSR_ADDR;
diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c
index 580bef8eb4cb..2319c9737c2b 100644
--- a/drivers/usb/gadget/udc/tegra-xudc.c
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -3883,7 +3883,7 @@ static int tegra_xudc_remove(struct platform_device *pdev)
pm_runtime_get_sync(xudc->dev);
- cancel_delayed_work(&xudc->plc_reset_work);
+ cancel_delayed_work_sync(&xudc->plc_reset_work);
cancel_work_sync(&xudc->usb_role_sw_work);
usb_del_gadget_udc(&xudc->gadget);
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index b94f2a070c05..df9428f1dc5e 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -272,6 +272,7 @@ config USB_EHCI_TEGRA
select USB_CHIPIDEA
select USB_CHIPIDEA_HOST
select USB_CHIPIDEA_TEGRA
+ select USB_GADGET
help
This option is deprecated now and the driver was removed, use
USB_CHIPIDEA_TEGRA instead.
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 3e4d298d851f..171de4df50bd 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -19,9 +19,7 @@ ifneq ($(CONFIG_USB_XHCI_DBGCAP), )
xhci-hcd-y += xhci-dbgcap.o xhci-dbgtty.o
endif
-ifneq ($(CONFIG_USB_XHCI_MTK), )
- xhci-hcd-y += xhci-mtk-sch.o
-endif
+xhci-mtk-hcd-y := xhci-mtk.o xhci-mtk-sch.o
xhci-plat-hcd-y := xhci-plat.o
ifneq ($(CONFIG_USB_XHCI_MVEBU), )
@@ -73,7 +71,7 @@ obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
obj-$(CONFIG_USB_XHCI_PCI_RENESAS) += xhci-pci-renesas.o
obj-$(CONFIG_USB_XHCI_PLATFORM) += xhci-plat-hcd.o
obj-$(CONFIG_USB_XHCI_HISTB) += xhci-histb.o
-obj-$(CONFIG_USB_XHCI_MTK) += xhci-mtk.o
+obj-$(CONFIG_USB_XHCI_MTK) += xhci-mtk-hcd.o
obj-$(CONFIG_USB_XHCI_TEGRA) += xhci-tegra.o
obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 1926b328b6aa..94b5e64ae9a2 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -651,7 +651,7 @@ static int ehci_run (struct usb_hcd *hcd)
"USB %x.%x started, EHCI %x.%02x%s\n",
((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f),
temp >> 8, temp & 0xff,
- ignore_oc ? ", overcurrent ignored" : "");
+ (ignore_oc || ehci->spurious_oc) ? ", overcurrent ignored" : "");
ehci_writel(ehci, INTR_MASK,
&ehci->regs->intr_enable); /* Turn On Interrupts */
@@ -705,15 +705,8 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 status, masked_status, pcd_status = 0, cmd;
int bh;
- unsigned long flags;
- /*
- * For threadirqs option we use spin_lock_irqsave() variant to prevent
- * deadlock with ehci hrtimer callback, because hrtimer callbacks run
- * in interrupt context even when threadirqs is specified. We can go
- * back to spin_lock() variant when hrtimer callbacks become threaded.
- */
- spin_lock_irqsave(&ehci->lock, flags);
+ spin_lock(&ehci->lock);
status = ehci_readl(ehci, &ehci->regs->status);
@@ -731,7 +724,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd)
/* Shared IRQ? */
if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) {
- spin_unlock_irqrestore(&ehci->lock, flags);
+ spin_unlock(&ehci->lock);
return IRQ_NONE;
}
@@ -842,7 +835,7 @@ dead:
if (bh)
ehci_work (ehci);
- spin_unlock_irqrestore(&ehci->lock, flags);
+ spin_unlock(&ehci->lock);
if (pcd_status)
usb_hcd_poll_rh_status(hcd);
return IRQ_HANDLED;
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 9f9ab5ccea88..159cc27b1a36 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -643,7 +643,7 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf)
* always set, seem to clear PORT_OCC and PORT_CSC when writing to
* PORT_POWER; that's surprising, but maybe within-spec.
*/
- if (!ignore_oc)
+ if (!ignore_oc && !ehci->spurious_oc)
mask = PORT_CSC | PORT_PEC | PORT_OCC;
else
mask = PORT_CSC | PORT_PEC;
@@ -1013,7 +1013,7 @@ int ehci_hub_control(
if (temp & PORT_PEC)
status |= USB_PORT_STAT_C_ENABLE << 16;
- if ((temp & PORT_OCC) && !ignore_oc){
+ if ((temp & PORT_OCC) && (!ignore_oc && !ehci->spurious_oc)){
status |= USB_PORT_STAT_C_OVERCURRENT << 16;
/*
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 71ec3025686f..e87cf3a00fa4 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -297,6 +297,9 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
if (pdev->vendor == PCI_VENDOR_ID_STMICRO
&& pdev->device == PCI_DEVICE_ID_STMICRO_USB_HOST)
; /* ConneXT has no sbrn register */
+ else if (pdev->vendor == PCI_VENDOR_ID_HUAWEI
+ && pdev->device == 0xa239)
+ ; /* HUAWEI Kunpeng920 USB EHCI has no sbrn register */
else
pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index a48dd3fac153..c70f2d0b4aaf 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -286,6 +286,9 @@ static int ehci_platform_probe(struct platform_device *dev)
if (of_property_read_bool(dev->dev.of_node, "big-endian"))
ehci->big_endian_mmio = ehci->big_endian_desc = 1;
+ if (of_property_read_bool(dev->dev.of_node, "spurious-oc"))
+ ehci->spurious_oc = 1;
+
if (of_property_read_bool(dev->dev.of_node,
"needs-reset-on-resume"))
priv->reset_on_resume = true;
@@ -327,6 +330,8 @@ static int ehci_platform_probe(struct platform_device *dev)
hcd->has_tt = 1;
if (pdata->reset_on_resume)
priv->reset_on_resume = true;
+ if (pdata->spurious_oc)
+ ehci->spurious_oc = 1;
#ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO
if (ehci->big_endian_mmio) {
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index eabf22a78eae..80bb823aa9fe 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -218,6 +218,7 @@ struct ehci_hcd { /* one per controller */
unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */
unsigned need_oc_pp_cycle:1; /* MPC834X port power */
unsigned imx28_write_fix:1; /* For Freescale i.MX28 */
+ unsigned spurious_oc:1;
/* required for usb32 quirk */
#define OHCI_CTRL_HCFS (3 << 6)
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 5617ef30530a..6cac642520fc 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -408,17 +408,17 @@ static void qh_lines(struct fotg210_hcd *fotg210, struct fotg210_qh *qh,
temp = snprintf(next, size,
"\n\t%p%c%s len=%d %08x urb %p",
td, mark, ({ char *tmp;
- switch ((scratch>>8)&0x03) {
- case 0:
+ switch ((scratch>>8)&0x03) {
+ case 0:
tmp = "out";
break;
- case 1:
+ case 1:
tmp = "in";
break;
- case 2:
+ case 2:
tmp = "setup";
break;
- default:
+ default:
tmp = "?";
break;
} tmp; }),
@@ -2699,7 +2699,7 @@ cleanup:
* any previous qh and cancel its urbs first; endpoints are
* implicitly reset then (data toggle too).
* That'd mean updating how usbcore talks to HCDs. (2.7?)
-*/
+ */
/* Each QH holds a qtd list; a QH is used for everything except iso.
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 8544a2a2c1e6..8835f6bd528e 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -1200,14 +1200,13 @@ DEFINE_SHOW_ATTRIBUTE(isp116x_debug);
static void create_debug_file(struct isp116x *isp116x)
{
- isp116x->dentry = debugfs_create_file(hcd_name,
- S_IRUGO, NULL, isp116x,
- &isp116x_debug_fops);
+ debugfs_create_file(hcd_name, S_IRUGO, usb_debug_root, isp116x,
+ &isp116x_debug_fops);
}
static void remove_debug_file(struct isp116x *isp116x)
{
- debugfs_remove(isp116x->dentry);
+ debugfs_remove(debugfs_lookup(hcd_name, usb_debug_root));
}
#else
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h
index a5e929c10d53..84904025fe7f 100644
--- a/drivers/usb/host/isp116x.h
+++ b/drivers/usb/host/isp116x.h
@@ -260,7 +260,6 @@ struct isp116x {
struct isp116x_platform_data *board;
- struct dentry *dentry;
unsigned long stat1, stat2, stat4, stat8, stat16;
/* HC registers */
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 2cecb36d241b..d8610ce8f2ec 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2164,15 +2164,13 @@ DEFINE_SHOW_ATTRIBUTE(isp1362);
/* expect just one isp1362_hcd per system */
static void create_debug_file(struct isp1362_hcd *isp1362_hcd)
{
- isp1362_hcd->debug_file = debugfs_create_file("isp1362", S_IRUGO,
- usb_debug_root,
- isp1362_hcd,
- &isp1362_fops);
+ debugfs_create_file("isp1362", S_IRUGO, usb_debug_root, isp1362_hcd,
+ &isp1362_fops);
}
static void remove_debug_file(struct isp1362_hcd *isp1362_hcd)
{
- debugfs_remove(isp1362_hcd->debug_file);
+ debugfs_remove(debugfs_lookup("isp1362", usb_debug_root));
}
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h
index 208705b08d37..74ca4be24723 100644
--- a/drivers/usb/host/isp1362.h
+++ b/drivers/usb/host/isp1362.h
@@ -435,7 +435,6 @@ struct isp1362_hcd {
struct isp1362_platform_data *board;
- struct dentry *debug_file;
unsigned long stat1, stat2, stat4, stat8, stat16;
/* HC registers */
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 115ced0d93e1..85623731a516 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -1287,11 +1287,10 @@ sl811h_hub_control(
goto error;
put_unaligned_le32(sl811->port1, buf);
-#ifndef VERBOSE
- if (*(u16*)(buf+2)) /* only if wPortChange is interesting */
-#endif
- dev_dbg(hcd->self.controller, "GetPortStatus %08x\n",
- sl811->port1);
+ if (__is_defined(VERBOSE) ||
+ *(u16*)(buf+2)) /* only if wPortChange is interesting */
+ dev_dbg(hcd->self.controller, "GetPortStatus %08x\n",
+ sl811->port1);
break;
case SetPortFeature:
if (wIndex != 1 || wLength != 0)
@@ -1496,14 +1495,13 @@ DEFINE_SHOW_ATTRIBUTE(sl811h_debug);
/* expect just one sl811 per system */
static void create_debug_file(struct sl811 *sl811)
{
- sl811->debug_file = debugfs_create_file("sl811h", S_IRUGO,
- usb_debug_root, sl811,
- &sl811h_debug_fops);
+ debugfs_create_file("sl811h", S_IRUGO, usb_debug_root, sl811,
+ &sl811h_debug_fops);
}
static void remove_debug_file(struct sl811 *sl811)
{
- debugfs_remove(sl811->debug_file);
+ debugfs_remove(debugfs_lookup("sl811h", usb_debug_root));
}
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/sl811.h b/drivers/usb/host/sl811.h
index 2abe51a5db44..ba8c9aa7dee8 100644
--- a/drivers/usb/host/sl811.h
+++ b/drivers/usb/host/sl811.h
@@ -123,7 +123,6 @@ struct sl811 {
void __iomem *addr_reg;
void __iomem *data_reg;
struct sl811_platform_data *board;
- struct dentry *debug_file;
unsigned long stat_insrmv;
unsigned long stat_wake;
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 72136373ffab..16d157013018 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -94,7 +94,7 @@ static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
return -EBUSY;
platform_dev.dev.parent = parent;
- /* finish seting up the platform device */
+ /* finish setting up the platform device */
resources[0].start = irq;
resources[1].start = base_addr;
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index eb96e1e15b71..5a783c423d8e 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -78,7 +78,7 @@ static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
* u132_module_lock exists to protect access to global variables
*
*/
-static struct mutex u132_module_lock;
+static DEFINE_MUTEX(u132_module_lock);
static int u132_exiting;
static int u132_instances;
/*
@@ -3190,7 +3190,6 @@ static int __init u132_hcd_init(void)
int retval;
u132_instances = 0;
u132_exiting = 0;
- mutex_init(&u132_module_lock);
if (usb_disabled())
return -ENODEV;
printk(KERN_INFO "driver %s\n", hcd_name);
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index 03bc59755123..d90b869f5f40 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -536,7 +536,8 @@ static void release_uhci(struct uhci_hcd *uhci)
uhci->is_initialized = 0;
spin_unlock_irq(&uhci->lock);
- debugfs_remove(uhci->dentry);
+ debugfs_remove(debugfs_lookup(uhci_to_hcd(uhci)->self.bus_name,
+ uhci_debugfs_root));
for (i = 0; i < UHCI_NUM_SKELQH; i++)
uhci_free_qh(uhci, uhci->skelqh[i]);
@@ -577,7 +578,6 @@ static int uhci_start(struct usb_hcd *hcd)
struct uhci_hcd *uhci = hcd_to_uhci(hcd);
int retval = -EBUSY;
int i;
- struct dentry __maybe_unused *dentry;
hcd->uses_new_polling = 1;
/* Accept arbitrarily long scatter-gather lists */
@@ -590,10 +590,8 @@ static int uhci_start(struct usb_hcd *hcd)
init_waitqueue_head(&uhci->waitqh);
#ifdef UHCI_DEBUG_OPS
- uhci->dentry = debugfs_create_file(hcd->self.bus_name,
- S_IFREG|S_IRUGO|S_IWUSR,
- uhci_debugfs_root, uhci,
- &uhci_debug_operations);
+ debugfs_create_file(hcd->self.bus_name, S_IFREG|S_IRUGO|S_IWUSR,
+ uhci_debugfs_root, uhci, &uhci_debug_operations);
#endif
uhci->frame = dma_alloc_coherent(uhci_dev(uhci),
@@ -702,7 +700,7 @@ err_alloc_frame_cpu:
uhci->frame, uhci->frame_dma_handle);
err_alloc_frame:
- debugfs_remove(uhci->dentry);
+ debugfs_remove(debugfs_lookup(hcd->self.bus_name, uhci_debugfs_root));
return retval;
}
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 7f9f33c8c232..8ae5ccd26753 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -381,10 +381,6 @@ enum uhci_rh_state {
* The full UHCI controller information:
*/
struct uhci_hcd {
-
- /* debugfs */
- struct dentry *dentry;
-
/* Grabbed from PCI */
unsigned long io_addr;
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 74c497fd3476..e9b18fc17617 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -11,6 +11,7 @@
#include <linux/slab.h>
#include <asm/unaligned.h>
+#include <linux/bitfield.h>
#include "xhci.h"
#include "xhci-trace.h"
@@ -19,151 +20,236 @@
#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \
PORT_RC | PORT_PLC | PORT_PE)
-/* USB 3 BOS descriptor and a capability descriptors, combined.
- * Fields will be adjusted and added later in xhci_create_usb3_bos_desc()
- */
-static u8 usb_bos_descriptor [] = {
- USB_DT_BOS_SIZE, /* __u8 bLength, 5 bytes */
- USB_DT_BOS, /* __u8 bDescriptorType */
- 0x0F, 0x00, /* __le16 wTotalLength, 15 bytes */
- 0x1, /* __u8 bNumDeviceCaps */
- /* First device capability, SuperSpeed */
- USB_DT_USB_SS_CAP_SIZE, /* __u8 bLength, 10 bytes */
- USB_DT_DEVICE_CAPABILITY, /* Device Capability */
- USB_SS_CAP_TYPE, /* bDevCapabilityType, SUPERSPEED_USB */
- 0x00, /* bmAttributes, LTM off by default */
- USB_5GBPS_OPERATION, 0x00, /* wSpeedsSupported, 5Gbps only */
- 0x03, /* bFunctionalitySupport,
- USB 3.0 speed only */
- 0x00, /* bU1DevExitLat, set later. */
- 0x00, 0x00, /* __le16 bU2DevExitLat, set later. */
- /* Second device capability, SuperSpeedPlus */
- 0x1c, /* bLength 28, will be adjusted later */
- USB_DT_DEVICE_CAPABILITY, /* Device Capability */
- USB_SSP_CAP_TYPE, /* bDevCapabilityType SUPERSPEED_PLUS */
- 0x00, /* bReserved 0 */
- 0x23, 0x00, 0x00, 0x00, /* bmAttributes, SSAC=3 SSIC=1 */
- 0x01, 0x00, /* wFunctionalitySupport */
- 0x00, 0x00, /* wReserved 0 */
- /* Default Sublink Speed Attributes, overwrite if custom PSI exists */
- 0x34, 0x00, 0x05, 0x00, /* 5Gbps, symmetric, rx, ID = 4 */
- 0xb4, 0x00, 0x05, 0x00, /* 5Gbps, symmetric, tx, ID = 4 */
- 0x35, 0x40, 0x0a, 0x00, /* 10Gbps, SSP, symmetric, rx, ID = 5 */
- 0xb5, 0x40, 0x0a, 0x00, /* 10Gbps, SSP, symmetric, tx, ID = 5 */
+/* Default sublink speed attribute of each lane */
+static u32 ssp_cap_default_ssa[] = {
+ 0x00050034, /* USB 3.0 SS Gen1x1 id:4 symmetric rx 5Gbps */
+ 0x000500b4, /* USB 3.0 SS Gen1x1 id:4 symmetric tx 5Gbps */
+ 0x000a4035, /* USB 3.1 SSP Gen2x1 id:5 symmetric rx 10Gbps */
+ 0x000a40b5, /* USB 3.1 SSP Gen2x1 id:5 symmetric tx 10Gbps */
+ 0x00054036, /* USB 3.2 SSP Gen1x2 id:6 symmetric rx 5Gbps */
+ 0x000540b6, /* USB 3.2 SSP Gen1x2 id:6 symmetric tx 5Gbps */
+ 0x000a4037, /* USB 3.2 SSP Gen2x2 id:7 symmetric rx 10Gbps */
+ 0x000a40b7, /* USB 3.2 SSP Gen2x2 id:7 symmetric tx 10Gbps */
};
-static int xhci_create_usb3_bos_desc(struct xhci_hcd *xhci, char *buf,
- u16 wLength)
+static int xhci_create_usb3x_bos_desc(struct xhci_hcd *xhci, char *buf,
+ u16 wLength)
{
- struct xhci_port_cap *port_cap = NULL;
- int i, ssa_count;
- u32 temp;
- u16 desc_size, ssp_cap_size, ssa_size = 0;
- bool usb3_1 = false;
-
- desc_size = USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE;
- ssp_cap_size = sizeof(usb_bos_descriptor) - desc_size;
-
- /* does xhci support USB 3.1 Enhanced SuperSpeed */
+ struct usb_bos_descriptor *bos;
+ struct usb_ss_cap_descriptor *ss_cap;
+ struct usb_ssp_cap_descriptor *ssp_cap;
+ struct xhci_port_cap *port_cap = NULL;
+ u16 bcdUSB;
+ u32 reg;
+ u32 min_rate = 0;
+ u8 min_ssid;
+ u8 ssac;
+ u8 ssic;
+ int offset;
+ int i;
+
+ /* BOS descriptor */
+ bos = (struct usb_bos_descriptor *)buf;
+ bos->bLength = USB_DT_BOS_SIZE;
+ bos->bDescriptorType = USB_DT_BOS;
+ bos->wTotalLength = cpu_to_le16(USB_DT_BOS_SIZE +
+ USB_DT_USB_SS_CAP_SIZE);
+ bos->bNumDeviceCaps = 1;
+
+ /* Create the descriptor for port with the highest revision */
for (i = 0; i < xhci->num_port_caps; i++) {
- if (xhci->port_caps[i].maj_rev == 0x03 &&
- xhci->port_caps[i].min_rev >= 0x01) {
- usb3_1 = true;
+ u8 major = xhci->port_caps[i].maj_rev;
+ u8 minor = xhci->port_caps[i].min_rev;
+ u16 rev = (major << 8) | minor;
+
+ if (i == 0 || bcdUSB < rev) {
+ bcdUSB = rev;
port_cap = &xhci->port_caps[i];
- break;
}
}
- if (usb3_1) {
- /* does xhci provide a PSI table for SSA speed attributes? */
+ if (bcdUSB >= 0x0310) {
if (port_cap->psi_count) {
- /* two SSA entries for each unique PSI ID, RX and TX */
- ssa_count = port_cap->psi_uid_count * 2;
- ssa_size = ssa_count * sizeof(u32);
- ssp_cap_size -= 16; /* skip copying the default SSA */
+ u8 num_sym_ssa = 0;
+
+ for (i = 0; i < port_cap->psi_count; i++) {
+ if ((port_cap->psi[i] & PLT_MASK) == PLT_SYM)
+ num_sym_ssa++;
+ }
+
+ ssac = port_cap->psi_count + num_sym_ssa - 1;
+ ssic = port_cap->psi_uid_count - 1;
+ } else {
+ if (bcdUSB >= 0x0320)
+ ssac = 7;
+ else
+ ssac = 3;
+
+ ssic = (ssac + 1) / 2 - 1;
}
- desc_size += ssp_cap_size;
- }
- memcpy(buf, &usb_bos_descriptor, min(desc_size, wLength));
- if (usb3_1) {
- /* modify bos descriptor bNumDeviceCaps and wTotalLength */
- buf[4] += 1;
- put_unaligned_le16(desc_size + ssa_size, &buf[2]);
+ bos->bNumDeviceCaps++;
+ bos->wTotalLength = cpu_to_le16(USB_DT_BOS_SIZE +
+ USB_DT_USB_SS_CAP_SIZE +
+ USB_DT_USB_SSP_CAP_SIZE(ssac));
}
if (wLength < USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE)
return wLength;
- /* Indicate whether the host has LTM support. */
- temp = readl(&xhci->cap_regs->hcc_params);
- if (HCC_LTC(temp))
- buf[8] |= USB_LTM_SUPPORT;
+ /* SuperSpeed USB Device Capability */
+ ss_cap = (struct usb_ss_cap_descriptor *)&buf[USB_DT_BOS_SIZE];
+ ss_cap->bLength = USB_DT_USB_SS_CAP_SIZE;
+ ss_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
+ ss_cap->bDevCapabilityType = USB_SS_CAP_TYPE;
+ ss_cap->bmAttributes = 0; /* set later */
+ ss_cap->wSpeedSupported = cpu_to_le16(USB_5GBPS_OPERATION);
+ ss_cap->bFunctionalitySupport = USB_LOW_SPEED_OPERATION;
+ ss_cap->bU1devExitLat = 0; /* set later */
+ ss_cap->bU2DevExitLat = 0; /* set later */
+
+ reg = readl(&xhci->cap_regs->hcc_params);
+ if (HCC_LTC(reg))
+ ss_cap->bmAttributes |= USB_LTM_SUPPORT;
- /* Set the U1 and U2 exit latencies. */
if ((xhci->quirks & XHCI_LPM_SUPPORT)) {
- temp = readl(&xhci->cap_regs->hcs_params3);
- buf[12] = HCS_U1_LATENCY(temp);
- put_unaligned_le16(HCS_U2_LATENCY(temp), &buf[13]);
+ reg = readl(&xhci->cap_regs->hcs_params3);
+ ss_cap->bU1devExitLat = HCS_U1_LATENCY(reg);
+ ss_cap->bU2DevExitLat = cpu_to_le16(HCS_U2_LATENCY(reg));
}
- /* If PSI table exists, add the custom speed attributes from it */
- if (usb3_1 && port_cap->psi_count) {
- u32 ssp_cap_base, bm_attrib, psi, psi_mant, psi_exp;
- int offset;
+ if (wLength < le16_to_cpu(bos->wTotalLength))
+ return wLength;
- ssp_cap_base = USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE;
+ if (bcdUSB < 0x0310)
+ return le16_to_cpu(bos->wTotalLength);
+
+ ssp_cap = (struct usb_ssp_cap_descriptor *)&buf[USB_DT_BOS_SIZE +
+ USB_DT_USB_SS_CAP_SIZE];
+ ssp_cap->bLength = USB_DT_USB_SSP_CAP_SIZE(ssac);
+ ssp_cap->bDescriptorType = USB_DT_DEVICE_CAPABILITY;
+ ssp_cap->bDevCapabilityType = USB_SSP_CAP_TYPE;
+ ssp_cap->bReserved = 0;
+ ssp_cap->wReserved = 0;
+ ssp_cap->bmAttributes =
+ cpu_to_le32(FIELD_PREP(USB_SSP_SUBLINK_SPEED_ATTRIBS, ssac) |
+ FIELD_PREP(USB_SSP_SUBLINK_SPEED_IDS, ssic));
+
+ if (!port_cap->psi_count) {
+ for (i = 0; i < ssac + 1; i++)
+ ssp_cap->bmSublinkSpeedAttr[i] =
+ cpu_to_le32(ssp_cap_default_ssa[i]);
+
+ min_ssid = 4;
+ goto out;
+ }
- if (wLength < desc_size)
- return wLength;
- buf[ssp_cap_base] = ssp_cap_size + ssa_size;
+ offset = 0;
+ for (i = 0; i < port_cap->psi_count; i++) {
+ u32 psi;
+ u32 attr;
+ u8 ssid;
+ u8 lp;
+ u8 lse;
+ u8 psie;
+ u16 lane_mantissa;
+ u16 psim;
+ u16 plt;
+
+ psi = port_cap->psi[i];
+ ssid = XHCI_EXT_PORT_PSIV(psi);
+ lp = XHCI_EXT_PORT_LP(psi);
+ psie = XHCI_EXT_PORT_PSIE(psi);
+ psim = XHCI_EXT_PORT_PSIM(psi);
+ plt = psi & PLT_MASK;
+
+ lse = psie;
+ lane_mantissa = psim;
+
+ /* Shift to Gbps and set SSP Link Protocol if 10Gpbs */
+ for (; psie < USB_SSP_SUBLINK_SPEED_LSE_GBPS; psie++)
+ psim /= 1000;
+
+ if (!min_rate || psim < min_rate) {
+ min_ssid = ssid;
+ min_rate = psim;
+ }
- /* attribute count SSAC bits 4:0 and ID count SSIC bits 8:5 */
- bm_attrib = (ssa_count - 1) & 0x1f;
- bm_attrib |= (port_cap->psi_uid_count - 1) << 5;
- put_unaligned_le32(bm_attrib, &buf[ssp_cap_base + 4]);
+ /* Some host controllers don't set the link protocol for SSP */
+ if (psim >= 10)
+ lp = USB_SSP_SUBLINK_SPEED_LP_SSP;
- if (wLength < desc_size + ssa_size)
- return wLength;
/*
- * Create the Sublink Speed Attributes (SSA) array.
- * The xhci PSI field and USB 3.1 SSA fields are very similar,
- * but link type bits 7:6 differ for values 01b and 10b.
- * xhci has also only one PSI entry for a symmetric link when
- * USB 3.1 requires two SSA entries (RX and TX) for every link
+ * PSIM and PSIE represent the total speed of PSI. The BOS
+ * descriptor SSP sublink speed attribute lane mantissa
+ * describes the lane speed. E.g. PSIM and PSIE for gen2x2
+ * is 20Gbps, but the BOS descriptor lane speed mantissa is
+ * 10Gbps. Check and modify the mantissa value to match the
+ * lane speed.
*/
- offset = desc_size;
- for (i = 0; i < port_cap->psi_count; i++) {
- psi = port_cap->psi[i];
- psi &= ~USB_SSP_SUBLINK_SPEED_RSVD;
- psi_exp = XHCI_EXT_PORT_PSIE(psi);
- psi_mant = XHCI_EXT_PORT_PSIM(psi);
-
- /* Shift to Gbps and set SSP Link BIT(14) if 10Gpbs */
- for (; psi_exp < 3; psi_exp++)
- psi_mant /= 1000;
- if (psi_mant >= 10)
- psi |= BIT(14);
-
- if ((psi & PLT_MASK) == PLT_SYM) {
- /* Symmetric, create SSA RX and TX from one PSI entry */
- put_unaligned_le32(psi, &buf[offset]);
- psi |= 1 << 7; /* turn entry to TX */
- offset += 4;
- if (offset >= desc_size + ssa_size)
- return desc_size + ssa_size;
- } else if ((psi & PLT_MASK) == PLT_ASYM_RX) {
- /* Asymetric RX, flip bits 7:6 for SSA */
- psi ^= PLT_MASK;
+ if (bcdUSB == 0x0320 && plt == PLT_SYM) {
+ /*
+ * The PSI dword for gen1x2 and gen2x1 share the same
+ * values. But the lane speed for gen1x2 is 5Gbps while
+ * gen2x1 is 10Gbps. If the previous PSI dword SSID is
+ * 5 and the PSIE and PSIM match with SSID 6, let's
+ * assume that the controller follows the default speed
+ * id with SSID 6 for gen1x2.
+ */
+ if (ssid == 6 && psie == 3 && psim == 10 && i) {
+ u32 prev = port_cap->psi[i - 1];
+
+ if ((prev & PLT_MASK) == PLT_SYM &&
+ XHCI_EXT_PORT_PSIV(prev) == 5 &&
+ XHCI_EXT_PORT_PSIE(prev) == 3 &&
+ XHCI_EXT_PORT_PSIM(prev) == 10) {
+ lse = USB_SSP_SUBLINK_SPEED_LSE_GBPS;
+ lane_mantissa = 5;
+ }
+ }
+
+ if (psie == 3 && psim > 10) {
+ lse = USB_SSP_SUBLINK_SPEED_LSE_GBPS;
+ lane_mantissa = 10;
}
- put_unaligned_le32(psi, &buf[offset]);
- offset += 4;
- if (offset >= desc_size + ssa_size)
- return desc_size + ssa_size;
+ }
+
+ attr = (FIELD_PREP(USB_SSP_SUBLINK_SPEED_SSID, ssid) |
+ FIELD_PREP(USB_SSP_SUBLINK_SPEED_LP, lp) |
+ FIELD_PREP(USB_SSP_SUBLINK_SPEED_LSE, lse) |
+ FIELD_PREP(USB_SSP_SUBLINK_SPEED_LSM, lane_mantissa));
+
+ switch (plt) {
+ case PLT_SYM:
+ attr |= FIELD_PREP(USB_SSP_SUBLINK_SPEED_ST,
+ USB_SSP_SUBLINK_SPEED_ST_SYM_RX);
+ ssp_cap->bmSublinkSpeedAttr[offset++] = cpu_to_le32(attr);
+
+ attr &= ~USB_SSP_SUBLINK_SPEED_ST;
+ attr |= FIELD_PREP(USB_SSP_SUBLINK_SPEED_ST,
+ USB_SSP_SUBLINK_SPEED_ST_SYM_TX);
+ ssp_cap->bmSublinkSpeedAttr[offset++] = cpu_to_le32(attr);
+ break;
+ case PLT_ASYM_RX:
+ attr |= FIELD_PREP(USB_SSP_SUBLINK_SPEED_ST,
+ USB_SSP_SUBLINK_SPEED_ST_ASYM_RX);
+ ssp_cap->bmSublinkSpeedAttr[offset++] = cpu_to_le32(attr);
+ break;
+ case PLT_ASYM_TX:
+ attr |= FIELD_PREP(USB_SSP_SUBLINK_SPEED_ST,
+ USB_SSP_SUBLINK_SPEED_ST_ASYM_TX);
+ ssp_cap->bmSublinkSpeedAttr[offset++] = cpu_to_le32(attr);
+ break;
}
}
- /* ssa_size is 0 for other than usb 3.1 hosts */
- return desc_size + ssa_size;
+out:
+ ssp_cap->wFunctionalitySupport =
+ cpu_to_le16(FIELD_PREP(USB_SSP_MIN_SUBLINK_SPEED_ATTRIBUTE_ID,
+ min_ssid) |
+ FIELD_PREP(USB_SSP_MIN_RX_LANE_COUNT, 1) |
+ FIELD_PREP(USB_SSP_MIN_TX_LANE_COUNT, 1));
+
+ return le16_to_cpu(bos->wTotalLength);
}
static void xhci_common_hub_descriptor(struct xhci_hcd *xhci,
@@ -1137,7 +1223,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
if (hcd->speed < HCD_USB3)
goto error;
- retval = xhci_create_usb3_bos_desc(xhci, buf, wLength);
+ retval = xhci_create_usb3x_bos_desc(xhci, buf, wLength);
spin_unlock_irqrestore(&xhci->lock, flags);
return retval;
case GetPortStatus:
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index f2c4ee7c4786..f66815fe8482 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -532,7 +532,7 @@ struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci,
return (struct xhci_ep_ctx *)
(ctx->bytes + (ep_index * CTX_SIZE(xhci->hcc_params)));
}
-
+EXPORT_SYMBOL_GPL(xhci_get_ep_ctx);
/***************** Streams structures manipulation *************************/
@@ -2129,6 +2129,15 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
if (major_revision == 0x03) {
rhub = &xhci->usb3_rhub;
+ /*
+ * Some hosts incorrectly use sub-minor version for minor
+ * version (i.e. 0x02 instead of 0x20 for bcdUSB 0x320 and 0x01
+ * for bcdUSB 0x310). Since there is no USB release with sub
+ * minor version 0x301 to 0x309, we can assume that they are
+ * incorrect and fix it here.
+ */
+ if (minor_revision > 0x00 && minor_revision < 0x10)
+ minor_revision <<= 4;
} else if (major_revision <= 0x02) {
rhub = &xhci->usb2_rhub;
} else {
@@ -2240,6 +2249,9 @@ static void xhci_create_rhub_port_array(struct xhci_hcd *xhci,
return;
rhub->ports = kcalloc_node(rhub->num_ports, sizeof(*rhub->ports),
flags, dev_to_node(dev));
+ if (!rhub->ports)
+ return;
+
for (i = 0; i < HCS_MAX_PORTS(xhci->hcs_params1); i++) {
if (xhci->hw_ports[i].rhub != rhub ||
xhci->hw_ports[i].hcd_portnum == DUPLICATE_ENTRY)
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index b45e5bf08997..8b90da5a6ed1 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -25,6 +25,15 @@
*/
#define TT_MICROFRAMES_MAX 9
+#define DBG_BUF_EN 64
+
+/* schedule error type */
+#define ESCH_SS_Y6 1001
+#define ESCH_SS_OVERLAP 1002
+#define ESCH_CS_OVERFLOW 1003
+#define ESCH_BW_OVERFLOW 1004
+#define ESCH_FIXME 1005
+
/* mtk scheduler bitmasks */
#define EP_BPKTS(p) ((p) & 0x7f)
#define EP_BCSCOUNT(p) (((p) & 0x7) << 8)
@@ -32,13 +41,75 @@
#define EP_BOFFSET(p) ((p) & 0x3fff)
#define EP_BREPEAT(p) (((p) & 0x7fff) << 16)
+static char *sch_error_string(int err_num)
+{
+ switch (err_num) {
+ case ESCH_SS_Y6:
+ return "Can't schedule Start-Split in Y6";
+ case ESCH_SS_OVERLAP:
+ return "Can't find a suitable Start-Split location";
+ case ESCH_CS_OVERFLOW:
+ return "The last Complete-Split is greater than 7";
+ case ESCH_BW_OVERFLOW:
+ return "Bandwidth exceeds the maximum limit";
+ case ESCH_FIXME:
+ return "FIXME, to be resolved";
+ default:
+ return "Unknown";
+ }
+}
+
static int is_fs_or_ls(enum usb_device_speed speed)
{
return speed == USB_SPEED_FULL || speed == USB_SPEED_LOW;
}
+static const char *
+decode_ep(struct usb_host_endpoint *ep, enum usb_device_speed speed)
+{
+ static char buf[DBG_BUF_EN];
+ struct usb_endpoint_descriptor *epd = &ep->desc;
+ unsigned int interval;
+ const char *unit;
+
+ interval = usb_decode_interval(epd, speed);
+ if (interval % 1000) {
+ unit = "us";
+ } else {
+ unit = "ms";
+ interval /= 1000;
+ }
+
+ snprintf(buf, DBG_BUF_EN, "%s ep%d%s %s, mpkt:%d, interval:%d/%d%s\n",
+ usb_speed_string(speed), usb_endpoint_num(epd),
+ usb_endpoint_dir_in(epd) ? "in" : "out",
+ usb_ep_type_string(usb_endpoint_type(epd)),
+ usb_endpoint_maxp(epd), epd->bInterval, interval, unit);
+
+ return buf;
+}
+
+static u32 get_bw_boundary(enum usb_device_speed speed)
+{
+ u32 boundary;
+
+ switch (speed) {
+ case USB_SPEED_SUPER_PLUS:
+ boundary = SSP_BW_BOUNDARY;
+ break;
+ case USB_SPEED_SUPER:
+ boundary = SS_BW_BOUNDARY;
+ break;
+ default:
+ boundary = HS_BW_BOUNDARY;
+ break;
+ }
+
+ return boundary;
+}
+
/*
-* get the index of bandwidth domains array which @ep belongs to.
+* get the bandwidth domain which @ep belongs to.
*
* the bandwidth domain array is saved to @sch_array of struct xhci_hcd_mtk,
* each HS root port is treated as a single bandwidth domain,
@@ -49,9 +120,11 @@ static int is_fs_or_ls(enum usb_device_speed speed)
* so the bandwidth domain array is organized as follow for simplification:
* SSport0-OUT, SSport0-IN, ..., SSportX-OUT, SSportX-IN, HSport0, ..., HSportY
*/
-static int get_bw_index(struct xhci_hcd *xhci, struct usb_device *udev,
- struct usb_host_endpoint *ep)
+static struct mu3h_sch_bw_info *
+get_bw_info(struct xhci_hcd_mtk *mtk, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
{
+ struct xhci_hcd *xhci = hcd_to_xhci(mtk->hcd);
struct xhci_virt_device *virt_dev;
int bw_index;
@@ -67,7 +140,7 @@ static int get_bw_index(struct xhci_hcd *xhci, struct usb_device *udev,
bw_index = virt_dev->real_port + xhci->usb3_rhub.num_ports - 1;
}
- return bw_index;
+ return &mtk->sch_array[bw_index];
}
static u32 get_esit(struct xhci_ep_ctx *ep_ctx)
@@ -85,7 +158,6 @@ static struct mu3h_sch_tt *find_tt(struct usb_device *udev)
{
struct usb_tt *utt = udev->tt;
struct mu3h_sch_tt *tt, **tt_index, **ptt;
- unsigned int port;
bool allocated_index = false;
if (!utt)
@@ -107,10 +179,8 @@ static struct mu3h_sch_tt *find_tt(struct usb_device *udev)
utt->hcpriv = tt_index;
allocated_index = true;
}
- port = udev->ttport - 1;
- ptt = &tt_index[port];
+ ptt = &tt_index[udev->ttport - 1];
} else {
- port = 0;
ptt = (struct mu3h_sch_tt **) &utt->hcpriv;
}
@@ -125,8 +195,6 @@ static struct mu3h_sch_tt *find_tt(struct usb_device *udev)
return ERR_PTR(-ENOMEM);
}
INIT_LIST_HEAD(&tt->ep_list);
- tt->usb_tt = utt;
- tt->tt_port = port;
*ptt = tt;
}
@@ -200,14 +268,15 @@ static struct mu3h_sch_ep_info *create_sch_ep(struct usb_device *udev,
sch_ep->sch_tt = tt;
sch_ep->ep = ep;
+ sch_ep->speed = udev->speed;
INIT_LIST_HEAD(&sch_ep->endpoint);
INIT_LIST_HEAD(&sch_ep->tt_endpoint);
return sch_ep;
}
-static void setup_sch_info(struct usb_device *udev,
- struct xhci_ep_ctx *ep_ctx, struct mu3h_sch_ep_info *sch_ep)
+static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
+ struct mu3h_sch_ep_info *sch_ep)
{
u32 ep_type;
u32 maxpkt;
@@ -234,7 +303,7 @@ static void setup_sch_info(struct usb_device *udev,
sch_ep->burst_mode = 0;
sch_ep->repeat = 0;
- if (udev->speed == USB_SPEED_HIGH) {
+ if (sch_ep->speed == USB_SPEED_HIGH) {
sch_ep->cs_count = 0;
/*
@@ -252,7 +321,7 @@ static void setup_sch_info(struct usb_device *udev,
sch_ep->pkts = max_burst + 1;
sch_ep->bw_cost_per_microframe = maxpkt * sch_ep->pkts;
bwb_table[0] = sch_ep->bw_cost_per_microframe;
- } else if (udev->speed >= USB_SPEED_SUPER) {
+ } else if (sch_ep->speed >= USB_SPEED_SUPER) {
/* usb3_r1 spec section4.4.7 & 4.4.8 */
sch_ep->cs_count = 0;
sch_ep->burst_mode = 1;
@@ -272,7 +341,6 @@ static void setup_sch_info(struct usb_device *udev,
}
if (ep_type == ISOC_IN_EP || ep_type == ISOC_OUT_EP) {
- u32 remainder;
if (sch_ep->esit == 1)
sch_ep->pkts = esit_pkts;
@@ -288,16 +356,14 @@ static void setup_sch_info(struct usb_device *udev,
sch_ep->repeat = !!(sch_ep->num_budget_microframes > 1);
sch_ep->bw_cost_per_microframe = maxpkt * sch_ep->pkts;
- remainder = sch_ep->bw_cost_per_microframe;
- remainder *= sch_ep->num_budget_microframes;
- remainder -= (maxpkt * esit_pkts);
for (i = 0; i < sch_ep->num_budget_microframes - 1; i++)
bwb_table[i] = sch_ep->bw_cost_per_microframe;
/* last one <= bw_cost_per_microframe */
- bwb_table[i] = remainder;
+ bwb_table[i] = maxpkt * esit_pkts
+ - i * sch_ep->bw_cost_per_microframe;
}
- } else if (is_fs_or_ls(udev->speed)) {
+ } else if (is_fs_or_ls(sch_ep->speed)) {
sch_ep->pkts = 1; /* at most one packet for each microframe */
/*
@@ -375,21 +441,42 @@ static void update_bus_bw(struct mu3h_sch_bw_info *sch_bw,
sch_ep->bw_budget_table[j];
}
}
- sch_ep->allocated = used;
}
-static int check_sch_tt(struct usb_device *udev,
- struct mu3h_sch_ep_info *sch_ep, u32 offset)
+static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
+{
+ struct mu3h_sch_tt *tt = sch_ep->sch_tt;
+ u32 num_esit, tmp;
+ int base;
+ int i, j;
+
+ num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
+ for (i = 0; i < num_esit; i++) {
+ base = offset + i * sch_ep->esit;
+
+ /*
+ * Compared with hs bus, no matter what ep type,
+ * the hub will always delay one uframe to send data
+ */
+ for (j = 0; j < sch_ep->cs_count; j++) {
+ tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_cost_per_microframe;
+ if (tmp > FS_PAYLOAD_MAX)
+ return -ESCH_BW_OVERFLOW;
+ }
+ }
+
+ return 0;
+}
+
+static int check_sch_tt(struct mu3h_sch_ep_info *sch_ep, u32 offset)
{
struct mu3h_sch_tt *tt = sch_ep->sch_tt;
u32 extra_cs_count;
- u32 fs_budget_start;
u32 start_ss, last_ss;
u32 start_cs, last_cs;
int i;
start_ss = offset % 8;
- fs_budget_start = (start_ss + 1) % 8;
if (sch_ep->ep_type == ISOC_OUT_EP) {
last_ss = start_ss + sch_ep->cs_count - 1;
@@ -399,11 +486,11 @@ static int check_sch_tt(struct usb_device *udev,
* must never schedule Start-Split in Y6
*/
if (!(start_ss == 7 || last_ss < 6))
- return -ERANGE;
+ return -ESCH_SS_Y6;
for (i = 0; i < sch_ep->cs_count; i++)
- if (test_bit(offset + i, tt->split_bit_map))
- return -ERANGE;
+ if (test_bit(offset + i, tt->ss_bit_map))
+ return -ESCH_SS_OVERLAP;
} else {
u32 cs_count = DIV_ROUND_UP(sch_ep->maxpkt, FS_PAYLOAD_MAX);
@@ -413,28 +500,26 @@ static int check_sch_tt(struct usb_device *udev,
* must never schedule Start-Split in Y6
*/
if (start_ss == 6)
- return -ERANGE;
+ return -ESCH_SS_Y6;
/* one uframe for ss + one uframe for idle */
start_cs = (start_ss + 2) % 8;
last_cs = start_cs + cs_count - 1;
if (last_cs > 7)
- return -ERANGE;
+ return -ESCH_CS_OVERFLOW;
if (sch_ep->ep_type == ISOC_IN_EP)
extra_cs_count = (last_cs == 7) ? 1 : 2;
else /* ep_type : INTR IN / INTR OUT */
- extra_cs_count = (fs_budget_start == 6) ? 1 : 2;
+ extra_cs_count = 1;
cs_count += extra_cs_count;
if (cs_count > 7)
cs_count = 7; /* HW limit */
- for (i = 0; i < cs_count + 2; i++) {
- if (test_bit(offset + i, tt->split_bit_map))
- return -ERANGE;
- }
+ if (test_bit(offset, tt->ss_bit_map))
+ return -ESCH_SS_OVERLAP;
sch_ep->cs_count = cs_count;
/* one for ss, the other for idle */
@@ -448,41 +533,85 @@ static int check_sch_tt(struct usb_device *udev,
sch_ep->num_budget_microframes = sch_ep->esit;
}
- return 0;
+ return check_fs_bus_bw(sch_ep, offset);
}
-static void update_sch_tt(struct usb_device *udev,
- struct mu3h_sch_ep_info *sch_ep)
+static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
{
struct mu3h_sch_tt *tt = sch_ep->sch_tt;
u32 base, num_esit;
+ int bw_updated;
+ int bits;
int i, j;
num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
+ bits = (sch_ep->ep_type == ISOC_OUT_EP) ? sch_ep->cs_count : 1;
+
+ if (used)
+ bw_updated = sch_ep->bw_cost_per_microframe;
+ else
+ bw_updated = -sch_ep->bw_cost_per_microframe;
+
for (i = 0; i < num_esit; i++) {
base = sch_ep->offset + i * sch_ep->esit;
- for (j = 0; j < sch_ep->num_budget_microframes; j++)
- set_bit(base + j, tt->split_bit_map);
+
+ for (j = 0; j < bits; j++) {
+ if (used)
+ set_bit(base + j, tt->ss_bit_map);
+ else
+ clear_bit(base + j, tt->ss_bit_map);
+ }
+
+ for (j = 0; j < sch_ep->cs_count; j++)
+ tt->fs_bus_bw[base + j] += bw_updated;
}
- list_add_tail(&sch_ep->tt_endpoint, &tt->ep_list);
+ if (used)
+ list_add_tail(&sch_ep->tt_endpoint, &tt->ep_list);
+ else
+ list_del(&sch_ep->tt_endpoint);
}
-static int check_sch_bw(struct usb_device *udev,
- struct mu3h_sch_bw_info *sch_bw, struct mu3h_sch_ep_info *sch_ep)
+static int load_ep_bw(struct mu3h_sch_bw_info *sch_bw,
+ struct mu3h_sch_ep_info *sch_ep, bool loaded)
+{
+ if (sch_ep->sch_tt)
+ update_sch_tt(sch_ep, loaded);
+
+ /* update bus bandwidth info */
+ update_bus_bw(sch_bw, sch_ep, loaded);
+ sch_ep->allocated = loaded;
+
+ return 0;
+}
+
+static u32 get_esit_boundary(struct mu3h_sch_ep_info *sch_ep)
+{
+ u32 boundary = sch_ep->esit;
+
+ if (sch_ep->sch_tt) { /* LS/FS with TT */
+ /* tune for CS */
+ if (sch_ep->ep_type != ISOC_OUT_EP)
+ boundary++;
+ else if (boundary > 1) /* normally esit >= 8 for FS/LS */
+ boundary--;
+ }
+
+ return boundary;
+}
+
+static int check_sch_bw(struct mu3h_sch_bw_info *sch_bw,
+ struct mu3h_sch_ep_info *sch_ep)
{
u32 offset;
- u32 esit;
u32 min_bw;
u32 min_index;
u32 worst_bw;
u32 bw_boundary;
+ u32 esit_boundary;
u32 min_num_budget;
u32 min_cs_count;
- bool tt_offset_ok = false;
- int ret;
-
- esit = sch_ep->esit;
+ int ret = 0;
/*
* Search through all possible schedule microframes.
@@ -492,16 +621,15 @@ static int check_sch_bw(struct usb_device *udev,
min_index = 0;
min_cs_count = sch_ep->cs_count;
min_num_budget = sch_ep->num_budget_microframes;
- for (offset = 0; offset < esit; offset++) {
- if (is_fs_or_ls(udev->speed)) {
- ret = check_sch_tt(udev, sch_ep, offset);
+ esit_boundary = get_esit_boundary(sch_ep);
+ for (offset = 0; offset < sch_ep->esit; offset++) {
+ if (sch_ep->sch_tt) {
+ ret = check_sch_tt(sch_ep, offset);
if (ret)
continue;
- else
- tt_offset_ok = true;
}
- if ((offset + sch_ep->num_budget_microframes) > sch_ep->esit)
+ if ((offset + sch_ep->num_budget_microframes) > esit_boundary)
break;
worst_bw = get_max_bw(sch_bw, sch_ep, offset);
@@ -515,33 +643,16 @@ static int check_sch_bw(struct usb_device *udev,
break;
}
- if (udev->speed == USB_SPEED_SUPER_PLUS)
- bw_boundary = SSP_BW_BOUNDARY;
- else if (udev->speed == USB_SPEED_SUPER)
- bw_boundary = SS_BW_BOUNDARY;
- else
- bw_boundary = HS_BW_BOUNDARY;
-
+ bw_boundary = get_bw_boundary(sch_ep->speed);
/* check bandwidth */
if (min_bw > bw_boundary)
- return -ERANGE;
+ return ret ? ret : -ESCH_BW_OVERFLOW;
sch_ep->offset = min_index;
sch_ep->cs_count = min_cs_count;
sch_ep->num_budget_microframes = min_num_budget;
- if (is_fs_or_ls(udev->speed)) {
- /* all offset for tt is not ok*/
- if (!tt_offset_ok)
- return -ERANGE;
-
- update_sch_tt(udev, sch_ep);
- }
-
- /* update bus bandwidth info */
- update_bus_bw(sch_bw, sch_ep, 1);
-
- return 0;
+ return load_ep_bw(sch_bw, sch_ep, true);
}
static void destroy_sch_ep(struct usb_device *udev,
@@ -549,14 +660,12 @@ static void destroy_sch_ep(struct usb_device *udev,
{
/* only release ep bw check passed by check_sch_bw() */
if (sch_ep->allocated)
- update_bus_bw(sch_bw, sch_ep, 0);
+ load_ep_bw(sch_bw, sch_ep, false);
- list_del(&sch_ep->endpoint);
-
- if (sch_ep->sch_tt) {
- list_del(&sch_ep->tt_endpoint);
+ if (sch_ep->sch_tt)
drop_tt(udev);
- }
+
+ list_del(&sch_ep->endpoint);
kfree(sch_ep);
}
@@ -606,44 +715,36 @@ int xhci_mtk_sch_init(struct xhci_hcd_mtk *mtk)
return 0;
}
-EXPORT_SYMBOL_GPL(xhci_mtk_sch_init);
void xhci_mtk_sch_exit(struct xhci_hcd_mtk *mtk)
{
kfree(mtk->sch_array);
}
-EXPORT_SYMBOL_GPL(xhci_mtk_sch_exit);
-int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
- struct usb_host_endpoint *ep)
+static int add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
{
struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
- struct xhci_hcd *xhci;
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct xhci_ep_ctx *ep_ctx;
- struct xhci_slot_ctx *slot_ctx;
struct xhci_virt_device *virt_dev;
struct mu3h_sch_ep_info *sch_ep;
unsigned int ep_index;
- xhci = hcd_to_xhci(hcd);
virt_dev = xhci->devs[udev->slot_id];
ep_index = xhci_get_endpoint_index(&ep->desc);
- slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
- xhci_dbg(xhci, "%s() type:%d, speed:%d, mpkt:%d, dir:%d, ep:%p\n",
- __func__, usb_endpoint_type(&ep->desc), udev->speed,
- usb_endpoint_maxp(&ep->desc),
- usb_endpoint_dir_in(&ep->desc), ep);
+ xhci_dbg(xhci, "%s %s\n", __func__, decode_ep(ep, udev->speed));
- if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT)) {
+ if (!need_bw_sch(ep, udev->speed, !!virt_dev->tt_info)) {
/*
* set @bpkts to 1 if it is LS or FS periodic endpoint, and its
* device does not connected through an external HS hub
*/
if (usb_endpoint_xfer_int(&ep->desc)
|| usb_endpoint_xfer_isoc(&ep->desc))
- ep_ctx->reserved[0] |= cpu_to_le32(EP_BPKTS(1));
+ ep_ctx->reserved[0] = cpu_to_le32(EP_BPKTS(1));
return 0;
}
@@ -652,41 +753,30 @@ int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
if (IS_ERR_OR_NULL(sch_ep))
return -ENOMEM;
- setup_sch_info(udev, ep_ctx, sch_ep);
+ setup_sch_info(ep_ctx, sch_ep);
list_add_tail(&sch_ep->endpoint, &mtk->bw_ep_chk_list);
return 0;
}
-EXPORT_SYMBOL_GPL(xhci_mtk_add_ep_quirk);
-void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
- struct usb_host_endpoint *ep)
+static void drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
{
struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
- struct xhci_hcd *xhci;
- struct xhci_slot_ctx *slot_ctx;
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct xhci_virt_device *virt_dev;
- struct mu3h_sch_bw_info *sch_array;
struct mu3h_sch_bw_info *sch_bw;
struct mu3h_sch_ep_info *sch_ep, *tmp;
- int bw_index;
- xhci = hcd_to_xhci(hcd);
virt_dev = xhci->devs[udev->slot_id];
- slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
- sch_array = mtk->sch_array;
- xhci_dbg(xhci, "%s() type:%d, speed:%d, mpks:%d, dir:%d, ep:%p\n",
- __func__, usb_endpoint_type(&ep->desc), udev->speed,
- usb_endpoint_maxp(&ep->desc),
- usb_endpoint_dir_in(&ep->desc), ep);
+ xhci_dbg(xhci, "%s %s\n", __func__, decode_ep(ep, udev->speed));
- if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT))
+ if (!need_bw_sch(ep, udev->speed, !!virt_dev->tt_info))
return;
- bw_index = get_bw_index(xhci, udev, ep);
- sch_bw = &sch_array[bw_index];
+ sch_bw = get_bw_info(mtk, udev, ep);
list_for_each_entry_safe(sch_ep, tmp, &sch_bw->bw_ep_list, endpoint) {
if (sch_ep->ep == ep) {
@@ -695,7 +785,6 @@ void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
}
}
}
-EXPORT_SYMBOL_GPL(xhci_mtk_drop_ep_quirk);
int xhci_mtk_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
{
@@ -704,17 +793,17 @@ int xhci_mtk_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
struct xhci_virt_device *virt_dev = xhci->devs[udev->slot_id];
struct mu3h_sch_bw_info *sch_bw;
struct mu3h_sch_ep_info *sch_ep, *tmp;
- int bw_index, ret;
+ int ret;
xhci_dbg(xhci, "%s() udev %s\n", __func__, dev_name(&udev->dev));
list_for_each_entry(sch_ep, &mtk->bw_ep_chk_list, endpoint) {
- bw_index = get_bw_index(xhci, udev, sch_ep->ep);
- sch_bw = &mtk->sch_array[bw_index];
+ sch_bw = get_bw_info(mtk, udev, sch_ep->ep);
- ret = check_sch_bw(udev, sch_bw, sch_ep);
+ ret = check_sch_bw(sch_bw, sch_ep);
if (ret) {
- xhci_err(xhci, "Not enough bandwidth!\n");
+ xhci_err(xhci, "Not enough bandwidth! (%s)\n",
+ sch_error_string(-ret));
return -ENOSPC;
}
}
@@ -724,16 +813,14 @@ int xhci_mtk_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
struct usb_host_endpoint *ep = sch_ep->ep;
unsigned int ep_index = xhci_get_endpoint_index(&ep->desc);
- bw_index = get_bw_index(xhci, udev, ep);
- sch_bw = &mtk->sch_array[bw_index];
-
+ sch_bw = get_bw_info(mtk, udev, ep);
list_move_tail(&sch_ep->endpoint, &sch_bw->bw_ep_list);
ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
- ep_ctx->reserved[0] |= cpu_to_le32(EP_BPKTS(sch_ep->pkts)
+ ep_ctx->reserved[0] = cpu_to_le32(EP_BPKTS(sch_ep->pkts)
| EP_BCSCOUNT(sch_ep->cs_count)
| EP_BBM(sch_ep->burst_mode));
- ep_ctx->reserved[1] |= cpu_to_le32(EP_BOFFSET(sch_ep->offset)
+ ep_ctx->reserved[1] = cpu_to_le32(EP_BOFFSET(sch_ep->offset)
| EP_BREPEAT(sch_ep->repeat));
xhci_dbg(xhci, " PKTS:%x, CSCOUNT:%x, BM:%x, OFFSET:%x, REPEAT:%x\n",
@@ -743,7 +830,6 @@ int xhci_mtk_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
return xhci_check_bandwidth(hcd, udev);
}
-EXPORT_SYMBOL_GPL(xhci_mtk_check_bandwidth);
void xhci_mtk_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
{
@@ -751,16 +837,43 @@ void xhci_mtk_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct mu3h_sch_bw_info *sch_bw;
struct mu3h_sch_ep_info *sch_ep, *tmp;
- int bw_index;
xhci_dbg(xhci, "%s() udev %s\n", __func__, dev_name(&udev->dev));
list_for_each_entry_safe(sch_ep, tmp, &mtk->bw_ep_chk_list, endpoint) {
- bw_index = get_bw_index(xhci, udev, sch_ep->ep);
- sch_bw = &mtk->sch_array[bw_index];
+ sch_bw = get_bw_info(mtk, udev, sch_ep->ep);
destroy_sch_ep(udev, sch_bw, sch_ep);
}
xhci_reset_bandwidth(hcd, udev);
}
-EXPORT_SYMBOL_GPL(xhci_mtk_reset_bandwidth);
+
+int xhci_mtk_add_ep(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ int ret;
+
+ ret = xhci_add_endpoint(hcd, udev, ep);
+ if (ret)
+ return ret;
+
+ if (ep->hcpriv)
+ ret = add_ep_quirk(hcd, udev, ep);
+
+ return ret;
+}
+
+int xhci_mtk_drop_ep(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
+{
+ int ret;
+
+ ret = xhci_drop_endpoint(hcd, udev, ep);
+ if (ret)
+ return ret;
+
+ if (ep->hcpriv)
+ drop_ep_quirk(hcd, udev, ep);
+
+ return 0;
+}
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 2f27dc0d9c6b..b2058b3bc834 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -7,7 +7,6 @@
* Chunfeng Yun <chunfeng.yun@mediatek.com>
*/
-#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/iopoll.h>
#include <linux/kernel.h>
@@ -16,6 +15,7 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_wakeirq.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
@@ -57,12 +57,23 @@
#define CTRL_U2_FORCE_PLL_STB BIT(28)
/* usb remote wakeup registers in syscon */
+
/* mt8173 etc */
#define PERI_WK_CTRL1 0x4
#define WC1_IS_C(x) (((x) & 0xf) << 26) /* cycle debounce */
#define WC1_IS_EN BIT(25)
#define WC1_IS_P BIT(6) /* polarity for ip sleep */
+/* mt8183 */
+#define PERI_WK_CTRL0 0x0
+#define WC0_IS_C(x) ((u32)(((x) & 0xf) << 28)) /* cycle debounce */
+#define WC0_IS_P BIT(12) /* polarity */
+#define WC0_IS_EN BIT(6)
+
+/* mt8192 */
+#define WC0_SSUSB0_CDEN BIT(6)
+#define WC0_IS_SPM_EN BIT(1)
+
/* mt2712 etc */
#define PERI_SSUSB_SPM_CTRL 0x0
#define SSC_IP_SLEEP_EN BIT(4)
@@ -71,6 +82,8 @@
enum ssusb_uwk_vers {
SSUSB_UWK_V1 = 1,
SSUSB_UWK_V2,
+ SSUSB_UWK_V1_1 = 101, /* specific revision 1.01 */
+ SSUSB_UWK_V1_2, /* specific revision 1.2 */
};
static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
@@ -206,89 +219,6 @@ static int xhci_mtk_ssusb_config(struct xhci_hcd_mtk *mtk)
return xhci_mtk_host_enable(mtk);
}
-static int xhci_mtk_clks_get(struct xhci_hcd_mtk *mtk)
-{
- struct device *dev = mtk->dev;
-
- mtk->sys_clk = devm_clk_get(dev, "sys_ck");
- if (IS_ERR(mtk->sys_clk)) {
- dev_err(dev, "fail to get sys_ck\n");
- return PTR_ERR(mtk->sys_clk);
- }
-
- mtk->xhci_clk = devm_clk_get_optional(dev, "xhci_ck");
- if (IS_ERR(mtk->xhci_clk))
- return PTR_ERR(mtk->xhci_clk);
-
- mtk->ref_clk = devm_clk_get_optional(dev, "ref_ck");
- if (IS_ERR(mtk->ref_clk))
- return PTR_ERR(mtk->ref_clk);
-
- mtk->mcu_clk = devm_clk_get_optional(dev, "mcu_ck");
- if (IS_ERR(mtk->mcu_clk))
- return PTR_ERR(mtk->mcu_clk);
-
- mtk->dma_clk = devm_clk_get_optional(dev, "dma_ck");
- return PTR_ERR_OR_ZERO(mtk->dma_clk);
-}
-
-static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk)
-{
- int ret;
-
- ret = clk_prepare_enable(mtk->ref_clk);
- if (ret) {
- dev_err(mtk->dev, "failed to enable ref_clk\n");
- goto ref_clk_err;
- }
-
- ret = clk_prepare_enable(mtk->sys_clk);
- if (ret) {
- dev_err(mtk->dev, "failed to enable sys_clk\n");
- goto sys_clk_err;
- }
-
- ret = clk_prepare_enable(mtk->xhci_clk);
- if (ret) {
- dev_err(mtk->dev, "failed to enable xhci_clk\n");
- goto xhci_clk_err;
- }
-
- ret = clk_prepare_enable(mtk->mcu_clk);
- if (ret) {
- dev_err(mtk->dev, "failed to enable mcu_clk\n");
- goto mcu_clk_err;
- }
-
- ret = clk_prepare_enable(mtk->dma_clk);
- if (ret) {
- dev_err(mtk->dev, "failed to enable dma_clk\n");
- goto dma_clk_err;
- }
-
- return 0;
-
-dma_clk_err:
- clk_disable_unprepare(mtk->mcu_clk);
-mcu_clk_err:
- clk_disable_unprepare(mtk->xhci_clk);
-xhci_clk_err:
- clk_disable_unprepare(mtk->sys_clk);
-sys_clk_err:
- clk_disable_unprepare(mtk->ref_clk);
-ref_clk_err:
- return ret;
-}
-
-static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk)
-{
- clk_disable_unprepare(mtk->dma_clk);
- clk_disable_unprepare(mtk->mcu_clk);
- clk_disable_unprepare(mtk->xhci_clk);
- clk_disable_unprepare(mtk->sys_clk);
- clk_disable_unprepare(mtk->ref_clk);
-}
-
/* only clocks can be turn off for ip-sleep wakeup mode */
static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, bool enable)
{
@@ -300,6 +230,16 @@ static void usb_wakeup_ip_sleep_set(struct xhci_hcd_mtk *mtk, bool enable)
msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P;
val = enable ? (WC1_IS_EN | WC1_IS_C(0x8)) : 0;
break;
+ case SSUSB_UWK_V1_1:
+ reg = mtk->uwk_reg_base + PERI_WK_CTRL0;
+ msk = WC0_IS_EN | WC0_IS_C(0xf) | WC0_IS_P;
+ val = enable ? (WC0_IS_EN | WC0_IS_C(0x8)) : 0;
+ break;
+ case SSUSB_UWK_V1_2:
+ reg = mtk->uwk_reg_base + PERI_WK_CTRL0;
+ msk = WC0_SSUSB0_CDEN | WC0_IS_SPM_EN;
+ val = enable ? msk : 0;
+ break;
case SSUSB_UWK_V2:
reg = mtk->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
@@ -335,7 +275,6 @@ static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
mtk->uwk_reg_base, mtk->uwk_vers);
return PTR_ERR_OR_ZERO(mtk->uwk);
-
}
static void usb_wakeup_set(struct xhci_hcd_mtk *mtk, bool enable)
@@ -344,14 +283,18 @@ static void usb_wakeup_set(struct xhci_hcd_mtk *mtk, bool enable)
usb_wakeup_ip_sleep_set(mtk, enable);
}
-static int xhci_mtk_setup(struct usb_hcd *hcd);
-static const struct xhci_driver_overrides xhci_mtk_overrides __initconst = {
- .reset = xhci_mtk_setup,
- .check_bandwidth = xhci_mtk_check_bandwidth,
- .reset_bandwidth = xhci_mtk_reset_bandwidth,
-};
+static int xhci_mtk_clks_get(struct xhci_hcd_mtk *mtk)
+{
+ struct clk_bulk_data *clks = mtk->clks;
-static struct hc_driver __read_mostly xhci_mtk_hc_driver;
+ clks[0].id = "sys_ck";
+ clks[1].id = "xhci_ck";
+ clks[2].id = "ref_ck";
+ clks[3].id = "mcu_ck";
+ clks[4].id = "dma_ck";
+
+ return devm_clk_bulk_get_optional(mtk->dev, BULK_CLKS_NUM, clks);
+}
static int xhci_mtk_ldos_enable(struct xhci_hcd_mtk *mtk)
{
@@ -397,6 +340,8 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
if (mtk->lpm_support)
xhci->quirks |= XHCI_LPM_SUPPORT;
+ if (mtk->u2_lpm_disable)
+ xhci->quirks |= XHCI_HW_LPM_DISABLE;
/*
* MTK xHCI 0.96: PSA is 1 by default even if doesn't support stream,
@@ -431,6 +376,16 @@ static int xhci_mtk_setup(struct usb_hcd *hcd)
return ret;
}
+static const struct xhci_driver_overrides xhci_mtk_overrides __initconst = {
+ .reset = xhci_mtk_setup,
+ .add_endpoint = xhci_mtk_add_ep,
+ .drop_endpoint = xhci_mtk_drop_ep,
+ .check_bandwidth = xhci_mtk_check_bandwidth,
+ .reset_bandwidth = xhci_mtk_reset_bandwidth,
+};
+
+static struct hc_driver __read_mostly xhci_mtk_hc_driver;
+
static int xhci_mtk_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -441,6 +396,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
struct resource *res;
struct usb_hcd *hcd;
int ret = -ENODEV;
+ int wakeup_irq;
int irq;
if (usb_disabled())
@@ -468,7 +424,23 @@ static int xhci_mtk_probe(struct platform_device *pdev)
if (ret)
return ret;
+ irq = platform_get_irq_byname_optional(pdev, "host");
+ if (irq < 0) {
+ if (irq == -EPROBE_DEFER)
+ return irq;
+
+ /* for backward compatibility */
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+ }
+
+ wakeup_irq = platform_get_irq_byname_optional(pdev, "wakeup");
+ if (wakeup_irq == -EPROBE_DEFER)
+ return wakeup_irq;
+
mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");
+ mtk->u2_lpm_disable = of_property_read_bool(node, "usb2-lpm-disable");
/* optional property, ignore the error if it does not exist */
of_property_read_u32(node, "mediatek,u3p-dis-msk",
&mtk->u3p_dis_msk);
@@ -479,24 +451,20 @@ static int xhci_mtk_probe(struct platform_device *pdev)
return ret;
}
+ pm_runtime_set_active(dev);
+ pm_runtime_use_autosuspend(dev);
+ pm_runtime_set_autosuspend_delay(dev, 4000);
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
- device_enable_async_suspend(dev);
ret = xhci_mtk_ldos_enable(mtk);
if (ret)
goto disable_pm;
- ret = xhci_mtk_clks_enable(mtk);
+ ret = clk_bulk_prepare_enable(BULK_CLKS_NUM, mtk->clks);
if (ret)
goto disable_ldos;
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- ret = irq;
- goto disable_clk;
- }
-
hcd = usb_create_hcd(driver, dev, dev_name(dev));
if (!hcd) {
ret = -ENOMEM;
@@ -563,8 +531,26 @@ static int xhci_mtk_probe(struct platform_device *pdev)
if (ret)
goto dealloc_usb2_hcd;
+ if (wakeup_irq > 0) {
+ ret = dev_pm_set_dedicated_wake_irq(dev, wakeup_irq);
+ if (ret) {
+ dev_err(dev, "set wakeup irq %d failed\n", wakeup_irq);
+ goto dealloc_usb3_hcd;
+ }
+ dev_info(dev, "wakeup irq %d\n", wakeup_irq);
+ }
+
+ device_enable_async_suspend(dev);
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+ pm_runtime_forbid(dev);
+
return 0;
+dealloc_usb3_hcd:
+ usb_remove_hcd(xhci->shared_hcd);
+ xhci->shared_hcd = NULL;
+
dealloc_usb2_hcd:
usb_remove_hcd(hcd);
@@ -579,53 +565,52 @@ put_usb2_hcd:
usb_put_hcd(hcd);
disable_clk:
- xhci_mtk_clks_disable(mtk);
+ clk_bulk_disable_unprepare(BULK_CLKS_NUM, mtk->clks);
disable_ldos:
xhci_mtk_ldos_disable(mtk);
disable_pm:
- pm_runtime_put_sync(dev);
+ pm_runtime_put_sync_autosuspend(dev);
pm_runtime_disable(dev);
return ret;
}
-static int xhci_mtk_remove(struct platform_device *dev)
+static int xhci_mtk_remove(struct platform_device *pdev)
{
- struct xhci_hcd_mtk *mtk = platform_get_drvdata(dev);
+ struct xhci_hcd_mtk *mtk = platform_get_drvdata(pdev);
struct usb_hcd *hcd = mtk->hcd;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct usb_hcd *shared_hcd = xhci->shared_hcd;
+ struct device *dev = &pdev->dev;
- pm_runtime_put_noidle(&dev->dev);
- pm_runtime_disable(&dev->dev);
+ pm_runtime_get_sync(dev);
+ xhci->xhc_state |= XHCI_STATE_REMOVING;
+ dev_pm_clear_wake_irq(dev);
+ device_init_wakeup(dev, false);
usb_remove_hcd(shared_hcd);
xhci->shared_hcd = NULL;
- device_init_wakeup(&dev->dev, false);
-
usb_remove_hcd(hcd);
usb_put_hcd(shared_hcd);
usb_put_hcd(hcd);
xhci_mtk_sch_exit(mtk);
- xhci_mtk_clks_disable(mtk);
+ clk_bulk_disable_unprepare(BULK_CLKS_NUM, mtk->clks);
xhci_mtk_ldos_disable(mtk);
+ pm_runtime_disable(dev);
+ pm_runtime_put_noidle(dev);
+ pm_runtime_set_suspended(dev);
+
return 0;
}
-/*
- * if ip sleep fails, and all clocks are disabled, access register will hang
- * AHB bus, so stop polling roothubs to avoid regs access on bus suspend.
- * and no need to check whether ip sleep failed or not; this will cause SPM
- * to wake up system immediately after system suspend complete if ip sleep
- * fails, it is what we wanted.
- */
static int __maybe_unused xhci_mtk_suspend(struct device *dev)
{
struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev);
struct usb_hcd *hcd = mtk->hcd;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ int ret;
xhci_dbg(xhci, "%s: stop port polling\n", __func__);
clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
@@ -633,10 +618,21 @@ static int __maybe_unused xhci_mtk_suspend(struct device *dev)
clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
del_timer_sync(&xhci->shared_hcd->rh_timer);
- xhci_mtk_host_disable(mtk);
- xhci_mtk_clks_disable(mtk);
+ ret = xhci_mtk_host_disable(mtk);
+ if (ret)
+ goto restart_poll_rh;
+
+ clk_bulk_disable_unprepare(BULK_CLKS_NUM, mtk->clks);
usb_wakeup_set(mtk, true);
return 0;
+
+restart_poll_rh:
+ xhci_dbg(xhci, "%s: restart port polling\n", __func__);
+ set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
+ usb_hcd_poll_rh_status(xhci->shared_hcd);
+ set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
+ usb_hcd_poll_rh_status(hcd);
+ return ret;
}
static int __maybe_unused xhci_mtk_resume(struct device *dev)
@@ -644,10 +640,16 @@ static int __maybe_unused xhci_mtk_resume(struct device *dev)
struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev);
struct usb_hcd *hcd = mtk->hcd;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ int ret;
usb_wakeup_set(mtk, false);
- xhci_mtk_clks_enable(mtk);
- xhci_mtk_host_enable(mtk);
+ ret = clk_bulk_prepare_enable(BULK_CLKS_NUM, mtk->clks);
+ if (ret)
+ goto enable_wakeup;
+
+ ret = xhci_mtk_host_enable(mtk);
+ if (ret)
+ goto disable_clks;
xhci_dbg(xhci, "%s: restart port polling\n", __func__);
set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
@@ -655,21 +657,59 @@ static int __maybe_unused xhci_mtk_resume(struct device *dev)
set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
usb_hcd_poll_rh_status(hcd);
return 0;
+
+disable_clks:
+ clk_bulk_disable_unprepare(BULK_CLKS_NUM, mtk->clks);
+enable_wakeup:
+ usb_wakeup_set(mtk, true);
+ return ret;
+}
+
+static int __maybe_unused xhci_mtk_runtime_suspend(struct device *dev)
+{
+ struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(mtk->hcd);
+ int ret = 0;
+
+ if (xhci->xhc_state)
+ return -ESHUTDOWN;
+
+ if (device_may_wakeup(dev))
+ ret = xhci_mtk_suspend(dev);
+
+ /* -EBUSY: let PM automatically reschedule another autosuspend */
+ return ret ? -EBUSY : 0;
+}
+
+static int __maybe_unused xhci_mtk_runtime_resume(struct device *dev)
+{
+ struct xhci_hcd_mtk *mtk = dev_get_drvdata(dev);
+ struct xhci_hcd *xhci = hcd_to_xhci(mtk->hcd);
+ int ret = 0;
+
+ if (xhci->xhc_state)
+ return -ESHUTDOWN;
+
+ if (device_may_wakeup(dev))
+ ret = xhci_mtk_resume(dev);
+
+ return ret;
}
static const struct dev_pm_ops xhci_mtk_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(xhci_mtk_suspend, xhci_mtk_resume)
+ SET_RUNTIME_PM_OPS(xhci_mtk_runtime_suspend,
+ xhci_mtk_runtime_resume, NULL)
};
-#define DEV_PM_OPS IS_ENABLED(CONFIG_PM) ? &xhci_mtk_pm_ops : NULL
-#ifdef CONFIG_OF
+#define DEV_PM_OPS (IS_ENABLED(CONFIG_PM) ? &xhci_mtk_pm_ops : NULL)
+
static const struct of_device_id mtk_xhci_of_match[] = {
{ .compatible = "mediatek,mt8173-xhci"},
{ .compatible = "mediatek,mtk-xhci"},
{ },
};
MODULE_DEVICE_TABLE(of, mtk_xhci_of_match);
-#endif
static struct platform_driver mtk_xhci_driver = {
.probe = xhci_mtk_probe,
@@ -677,10 +717,9 @@ static struct platform_driver mtk_xhci_driver = {
.driver = {
.name = "xhci-mtk",
.pm = DEV_PM_OPS,
- .of_match_table = of_match_ptr(mtk_xhci_of_match),
+ .of_match_table = mtk_xhci_of_match,
},
};
-MODULE_ALIAS("platform:xhci-mtk");
static int __init xhci_mtk_init(void)
{
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index cbb09dfea62e..cd3a37bb73e6 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -9,8 +9,12 @@
#ifndef _XHCI_MTK_H_
#define _XHCI_MTK_H_
+#include <linux/clk.h>
+
#include "xhci.h"
+#define BULK_CLKS_NUM 5
+
/**
* To simplify scheduler algorithm, set a upper limit for ESIT,
* if a synchromous ep's ESIT is larger than @XHCI_MTK_MAX_ESIT,
@@ -20,16 +24,14 @@
#define XHCI_MTK_MAX_ESIT 64
/**
- * @split_bit_map: used to avoid split microframes overlay
+ * @ss_bit_map: used to avoid start split microframes overlay
+ * @fs_bus_bw: array to keep track of bandwidth already used for FS
* @ep_list: Endpoints using this TT
- * @usb_tt: usb TT related
- * @tt_port: TT port number
*/
struct mu3h_sch_tt {
- DECLARE_BITMAP(split_bit_map, XHCI_MTK_MAX_ESIT);
+ DECLARE_BITMAP(ss_bit_map, XHCI_MTK_MAX_ESIT);
+ u32 fs_bus_bw[XHCI_MTK_MAX_ESIT];
struct list_head ep_list;
- struct usb_tt *usb_tt;
- int tt_port;
};
/**
@@ -86,7 +88,8 @@ struct mu3h_sch_ep_info {
struct mu3h_sch_tt *sch_tt;
u32 ep_type;
u32 maxpkt;
- void *ep;
+ struct usb_host_endpoint *ep;
+ enum usb_device_speed speed;
bool allocated;
/*
* mtk xHCI scheduling information put into reserved DWs
@@ -141,15 +144,9 @@ struct xhci_hcd_mtk {
int u3p_dis_msk;
struct regulator *vusb33;
struct regulator *vbus;
- struct clk *sys_clk; /* sys and mac clock */
- struct clk *xhci_clk;
- struct clk *ref_clk;
- struct clk *mcu_clk;
- struct clk *dma_clk;
- struct regmap *pericfg;
- struct phy **phys;
- int num_phys;
+ struct clk_bulk_data clks[BULK_CLKS_NUM];
bool lpm_support;
+ bool u2_lpm_disable;
/* usb remote wakeup */
bool uwk_en;
struct regmap *uwk;
@@ -162,38 +159,13 @@ static inline struct xhci_hcd_mtk *hcd_to_mtk(struct usb_hcd *hcd)
return dev_get_drvdata(hcd->self.controller);
}
-#if IS_ENABLED(CONFIG_USB_XHCI_MTK)
int xhci_mtk_sch_init(struct xhci_hcd_mtk *mtk);
void xhci_mtk_sch_exit(struct xhci_hcd_mtk *mtk);
-int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
- struct usb_host_endpoint *ep);
-void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
- struct usb_host_endpoint *ep);
+int xhci_mtk_add_ep(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
+int xhci_mtk_drop_ep(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
int xhci_mtk_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
void xhci_mtk_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
-#else
-static inline int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd,
- struct usb_device *udev, struct usb_host_endpoint *ep)
-{
- return 0;
-}
-
-static inline void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd,
- struct usb_device *udev, struct usb_host_endpoint *ep)
-{
-}
-
-static inline int xhci_mtk_check_bandwidth(struct usb_hcd *hcd,
- struct usb_device *udev)
-{
- return 0;
-}
-
-static inline void xhci_mtk_reset_bandwidth(struct usb_hcd *hcd,
- struct usb_device *udev)
-{
-}
-#endif
-
#endif /* _XHCI_MTK_H_ */
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index ce38076901e2..05c38dd3ee36 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -57,7 +57,6 @@
#include <linux/dma-mapping.h>
#include "xhci.h"
#include "xhci-trace.h"
-#include "xhci-mtk.h"
static int queue_command(struct xhci_hcd *xhci, struct xhci_command *cmd,
u32 field1, u32 field2,
@@ -2129,16 +2128,13 @@ int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code)
return 0;
}
-static int finish_td(struct xhci_hcd *xhci, struct xhci_td *td,
- struct xhci_transfer_event *event, struct xhci_virt_ep *ep)
+static int finish_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep,
+ struct xhci_ring *ep_ring, struct xhci_td *td,
+ u32 trb_comp_code)
{
struct xhci_ep_ctx *ep_ctx;
- struct xhci_ring *ep_ring;
- u32 trb_comp_code;
- ep_ring = xhci_dma_to_transfer_ring(ep, le64_to_cpu(event->buffer));
ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep->ep_index);
- trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len));
switch (trb_comp_code) {
case COMP_STOPPED_LENGTH_INVALID:
@@ -2234,9 +2230,9 @@ static int sum_trb_lengths(struct xhci_hcd *xhci, struct xhci_ring *ring,
/*
* Process control tds, update urb status and actual_length.
*/
-static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
- union xhci_trb *ep_trb, struct xhci_transfer_event *event,
- struct xhci_virt_ep *ep)
+static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep,
+ struct xhci_ring *ep_ring, struct xhci_td *td,
+ union xhci_trb *ep_trb, struct xhci_transfer_event *event)
{
struct xhci_ep_ctx *ep_ctx;
u32 trb_comp_code;
@@ -2324,15 +2320,15 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
td->urb->actual_length = requested;
finish_td:
- return finish_td(xhci, td, event, ep);
+ return finish_td(xhci, ep, ep_ring, td, trb_comp_code);
}
/*
* Process isochronous tds, update urb packet status and actual_length.
*/
-static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
- union xhci_trb *ep_trb, struct xhci_transfer_event *event,
- struct xhci_virt_ep *ep)
+static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep,
+ struct xhci_ring *ep_ring, struct xhci_td *td,
+ union xhci_trb *ep_trb, struct xhci_transfer_event *event)
{
struct urb_priv *urb_priv;
int idx;
@@ -2409,7 +2405,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
td->urb->actual_length += frame->actual_length;
- return finish_td(xhci, td, event, ep);
+ return finish_td(xhci, ep, ep_ring, td, trb_comp_code);
}
static int skip_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
@@ -2441,17 +2437,15 @@ static int skip_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
/*
* Process bulk and interrupt tds, update urb status and actual_length.
*/
-static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
- union xhci_trb *ep_trb, struct xhci_transfer_event *event,
- struct xhci_virt_ep *ep)
+static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep,
+ struct xhci_ring *ep_ring, struct xhci_td *td,
+ union xhci_trb *ep_trb, struct xhci_transfer_event *event)
{
struct xhci_slot_ctx *slot_ctx;
- struct xhci_ring *ep_ring;
u32 trb_comp_code;
u32 remaining, requested, ep_trb_len;
slot_ctx = xhci_get_slot_ctx(xhci, ep->vdev->out_ctx);
- ep_ring = xhci_dma_to_transfer_ring(ep, le64_to_cpu(event->buffer));
trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len));
remaining = EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
ep_trb_len = TRB_LEN(le32_to_cpu(ep_trb->generic.field[2]));
@@ -2511,7 +2505,8 @@ finish_td:
remaining);
td->urb->actual_length = 0;
}
- return finish_td(xhci, td, event, ep);
+
+ return finish_td(xhci, ep, ep_ring, td, trb_comp_code);
}
/*
@@ -2854,11 +2849,11 @@ static int handle_tx_event(struct xhci_hcd *xhci,
/* update the urb's actual_length and give back to the core */
if (usb_endpoint_xfer_control(&td->urb->ep->desc))
- process_ctrl_td(xhci, td, ep_trb, event, ep);
+ process_ctrl_td(xhci, ep, ep_ring, td, ep_trb, event);
else if (usb_endpoint_xfer_isoc(&td->urb->ep->desc))
- process_isoc_td(xhci, td, ep_trb, event, ep);
+ process_isoc_td(xhci, ep, ep_ring, td, ep_trb, event);
else
- process_bulk_intr_td(xhci, td, ep_trb, event, ep);
+ process_bulk_intr_td(xhci, ep, ep_ring, td, ep_trb, event);
cleanup:
handling_skipped_tds = ep->skip &&
trb_comp_code != COMP_MISSED_SERVICE_ERROR &&
@@ -3015,12 +3010,11 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
union xhci_trb *event_ring_deq;
irqreturn_t ret = IRQ_NONE;
- unsigned long flags;
u64 temp_64;
u32 status;
int event_loop = 0;
- spin_lock_irqsave(&xhci->lock, flags);
+ spin_lock(&xhci->lock);
/* Check if the xHC generated the interrupt, or the irq is shared */
status = readl(&xhci->op_regs->status);
if (status == ~(u32)0) {
@@ -3083,7 +3077,7 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
ret = IRQ_HANDLED;
out:
- spin_unlock_irqrestore(&xhci->lock, flags);
+ spin_unlock(&xhci->lock);
return ret;
}
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1975016f46bf..ca9385d22f68 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -20,7 +20,6 @@
#include "xhci.h"
#include "xhci-trace.h"
-#include "xhci-mtk.h"
#include "xhci-debugfs.h"
#include "xhci-dbgcap.h"
@@ -228,6 +227,7 @@ static void xhci_zero_64b_regs(struct xhci_hcd *xhci)
struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
int err, i;
u64 val;
+ u32 intrs;
/*
* Some Renesas controllers get into a weird state if they are
@@ -266,7 +266,10 @@ static void xhci_zero_64b_regs(struct xhci_hcd *xhci)
if (upper_32_bits(val))
xhci_write_64(xhci, 0, &xhci->op_regs->cmd_ring);
- for (i = 0; i < HCS_MAX_INTRS(xhci->hcs_params1); i++) {
+ intrs = min_t(u32, HCS_MAX_INTRS(xhci->hcs_params1),
+ ARRAY_SIZE(xhci->run_regs->ir_set));
+
+ for (i = 0; i < intrs; i++) {
struct xhci_intr_reg __iomem *ir;
ir = &xhci->run_regs->ir_set[i];
@@ -1428,6 +1431,7 @@ unsigned int xhci_get_endpoint_index(struct usb_endpoint_descriptor *desc)
(usb_endpoint_dir_in(desc) ? 1 : 0) - 1;
return index;
}
+EXPORT_SYMBOL_GPL(xhci_get_endpoint_index);
/* The reverse operation to xhci_get_endpoint_index. Calculate the USB endpoint
* address from the XHCI endpoint index.
@@ -1860,8 +1864,8 @@ err_giveback:
* disabled, so there's no need for mutual exclusion to protect
* the xhci->devs[slot_id] structure.
*/
-static int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
- struct usb_host_endpoint *ep)
+int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
{
struct xhci_hcd *xhci;
struct xhci_container_ctx *in_ctx, *out_ctx;
@@ -1921,9 +1925,6 @@ static int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep);
- if (xhci->quirks & XHCI_MTK_HOST)
- xhci_mtk_drop_ep_quirk(hcd, udev, ep);
-
xhci_dbg(xhci, "drop ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x\n",
(unsigned int) ep->desc.bEndpointAddress,
udev->slot_id,
@@ -1931,6 +1932,7 @@ static int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
(unsigned int) new_add_flags);
return 0;
}
+EXPORT_SYMBOL_GPL(xhci_drop_endpoint);
/* Add an endpoint to a new possible bandwidth configuration for this device.
* Only one call to this function is allowed per endpoint before
@@ -1945,8 +1947,8 @@ static int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
* configuration or alt setting is installed in the device, so there's no need
* for mutual exclusion to protect the xhci->devs[slot_id] structure.
*/
-static int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
- struct usb_host_endpoint *ep)
+int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep)
{
struct xhci_hcd *xhci;
struct xhci_container_ctx *in_ctx;
@@ -2020,15 +2022,6 @@ static int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
return -ENOMEM;
}
- if (xhci->quirks & XHCI_MTK_HOST) {
- ret = xhci_mtk_add_ep_quirk(hcd, udev, ep);
- if (ret < 0) {
- xhci_ring_free(xhci, virt_dev->eps[ep_index].new_ring);
- virt_dev->eps[ep_index].new_ring = NULL;
- return ret;
- }
- }
-
ctrl_ctx->add_flags |= cpu_to_le32(added_ctxs);
new_add_flags = le32_to_cpu(ctrl_ctx->add_flags);
@@ -2053,6 +2046,7 @@ static int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
(unsigned int) new_add_flags);
return 0;
}
+EXPORT_SYMBOL_GPL(xhci_add_endpoint);
static void xhci_zero_in_ctx(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev)
{
@@ -3086,6 +3080,7 @@ command_cleanup:
return ret;
}
+EXPORT_SYMBOL_GPL(xhci_check_bandwidth);
void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
{
@@ -3110,6 +3105,7 @@ void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
}
xhci_zero_in_ctx(xhci, virt_dev);
}
+EXPORT_SYMBOL_GPL(xhci_reset_bandwidth);
static void xhci_setup_input_ctx_for_config_ep(struct xhci_hcd *xhci,
struct xhci_container_ctx *in_ctx,
@@ -3269,6 +3265,14 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
/* config ep command clears toggle if add and drop ep flags are set */
ctrl_ctx = xhci_get_input_control_ctx(cfg_cmd->in_ctx);
+ if (!ctrl_ctx) {
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_free_command(xhci, cfg_cmd);
+ xhci_warn(xhci, "%s: Could not get input context, bad type.\n",
+ __func__);
+ goto cleanup;
+ }
+
xhci_setup_input_ctx_for_config_ep(xhci, cfg_cmd->in_ctx, vdev->out_ctx,
ctrl_ctx, ep_flag, ep_flag);
xhci_endpoint_copy(xhci, cfg_cmd->in_ctx, vdev->out_ctx, ep_index);
@@ -5234,10 +5238,12 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
hcd->self.root_hub->rx_lanes = 2;
hcd->self.root_hub->tx_lanes = 2;
+ hcd->self.root_hub->ssp_rate = USB_SSP_GEN_2x2;
break;
case 1:
hcd->speed = HCD_USB31;
hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
+ hcd->self.root_hub->ssp_rate = USB_SSP_GEN_2x1;
break;
}
xhci_info(xhci, "Host supports USB 3.%x %sSuperSpeed\n",
@@ -5436,6 +5442,10 @@ void xhci_init_driver(struct hc_driver *drv,
drv->reset = over->reset;
if (over->start)
drv->start = over->start;
+ if (over->add_endpoint)
+ drv->add_endpoint = over->add_endpoint;
+ if (over->drop_endpoint)
+ drv->drop_endpoint = over->drop_endpoint;
if (over->check_bandwidth)
drv->check_bandwidth = over->check_bandwidth;
if (over->reset_bandwidth)
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ca822ad3b65b..2595a8f057c4 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1929,6 +1929,10 @@ struct xhci_driver_overrides {
size_t extra_priv_size;
int (*reset)(struct usb_hcd *hcd);
int (*start)(struct usb_hcd *hcd);
+ int (*add_endpoint)(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
+ int (*drop_endpoint)(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
int (*check_bandwidth)(struct usb_hcd *, struct usb_device *);
void (*reset_bandwidth)(struct usb_hcd *, struct usb_device *);
};
@@ -2081,6 +2085,10 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks);
void xhci_shutdown(struct usb_hcd *hcd);
void xhci_init_driver(struct hc_driver *drv,
const struct xhci_driver_overrides *over);
+int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
+int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
+ struct usb_host_endpoint *ep);
int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev);
int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id);
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 45a387979935..6d15a097b007 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -183,10 +183,10 @@ static void adu_interrupt_in_callback(struct urb *urb)
dev->interrupt_in_buffer, urb->actual_length);
dev->read_buffer_length += urb->actual_length;
- dev_dbg(&dev->udev->dev,"%s reading %d\n", __func__,
+ dev_dbg(&dev->udev->dev, "%s reading %d\n", __func__,
urb->actual_length);
} else {
- dev_dbg(&dev->udev->dev,"%s : read_buffer overflow\n",
+ dev_dbg(&dev->udev->dev, "%s : read_buffer overflow\n",
__func__);
}
}
@@ -726,7 +726,7 @@ static int adu_probe(struct usb_interface *interface,
retval = -EIO;
goto error;
}
- dev_dbg(&interface->dev,"serial_number=%s", dev->serial_number);
+ dev_dbg(&interface->dev, "serial_number=%s", dev->serial_number);
/* we can register the device now, as it is ready */
usb_set_intfdata(interface, dev);
diff --git a/drivers/usb/misc/ehset.c b/drivers/usb/misc/ehset.c
index 2752e1f4f4d0..f87890f9cd26 100644
--- a/drivers/usb/misc/ehset.c
+++ b/drivers/usb/misc/ehset.c
@@ -24,68 +24,57 @@ static int ehset_probe(struct usb_interface *intf,
int ret = -EINVAL;
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_device *hub_udev = dev->parent;
- struct usb_device_descriptor *buf;
+ struct usb_device_descriptor buf;
u8 portnum = dev->portnum;
u16 test_pid = le16_to_cpu(dev->descriptor.idProduct);
switch (test_pid) {
case TEST_SE0_NAK_PID:
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_TEST,
- (USB_TEST_SE0_NAK << 8) | portnum,
- NULL, 0, 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_TEST,
+ (USB_TEST_SE0_NAK << 8) | portnum,
+ NULL, 0, 1000, GFP_KERNEL);
break;
case TEST_J_PID:
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_TEST,
- (USB_TEST_J << 8) | portnum,
- NULL, 0, 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_TEST,
+ (USB_TEST_J << 8) | portnum, NULL, 0,
+ 1000, GFP_KERNEL);
break;
case TEST_K_PID:
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_TEST,
- (USB_TEST_K << 8) | portnum,
- NULL, 0, 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_TEST,
+ (USB_TEST_K << 8) | portnum, NULL, 0,
+ 1000, GFP_KERNEL);
break;
case TEST_PACKET_PID:
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_TEST,
- (USB_TEST_PACKET << 8) | portnum,
- NULL, 0, 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_TEST,
+ (USB_TEST_PACKET << 8) | portnum,
+ NULL, 0, 1000, GFP_KERNEL);
break;
case TEST_HS_HOST_PORT_SUSPEND_RESUME:
/* Test: wait for 15secs -> suspend -> 15secs delay -> resume */
msleep(15 * 1000);
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_SUSPEND, portnum,
- NULL, 0, 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_SUSPEND,
+ portnum, NULL, 0, 1000, GFP_KERNEL);
if (ret < 0)
break;
msleep(15 * 1000);
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_CLEAR_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_SUSPEND, portnum,
- NULL, 0, 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_CLEAR_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_SUSPEND,
+ portnum, NULL, 0, 1000, GFP_KERNEL);
break;
case TEST_SINGLE_STEP_GET_DEV_DESC:
/* Test: wait for 15secs -> GetDescriptor request */
msleep(15 * 1000);
- buf = kmalloc(USB_DT_DEVICE_SIZE, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
- USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
- USB_DT_DEVICE << 8, 0,
- buf, USB_DT_DEVICE_SIZE,
- USB_CTRL_GET_TIMEOUT);
- kfree(buf);
+ ret = usb_control_msg_recv(dev, 0, USB_REQ_GET_DESCRIPTOR,
+ USB_DIR_IN, USB_DT_DEVICE << 8, 0,
+ &buf, USB_DT_DEVICE_SIZE,
+ USB_CTRL_GET_TIMEOUT, GFP_KERNEL);
break;
case TEST_SINGLE_STEP_SET_FEATURE:
/*
@@ -100,11 +89,10 @@ static int ehset_probe(struct usb_interface *intf,
break;
}
- ret = usb_control_msg(hub_udev, usb_sndctrlpipe(hub_udev, 0),
- USB_REQ_SET_FEATURE, USB_RT_PORT,
- USB_PORT_FEAT_TEST,
- (6 << 8) | portnum,
- NULL, 0, 60 * 1000);
+ ret = usb_control_msg_send(hub_udev, 0, USB_REQ_SET_FEATURE,
+ USB_RT_PORT, USB_PORT_FEAT_TEST,
+ (6 << 8) | portnum, NULL, 0,
+ 60 * 1000, GFP_KERNEL);
break;
default:
@@ -112,7 +100,7 @@ static int ehset_probe(struct usb_interface *intf,
__func__, test_pid);
}
- return (ret < 0) ? ret : 0;
+ return ret;
}
static void ehset_disconnect(struct usb_interface *intf)
diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c
index f058d8029761..78aaee56c2b7 100644
--- a/drivers/usb/misc/ezusb.c
+++ b/drivers/usb/misc/ezusb.c
@@ -31,24 +31,12 @@ static const struct ezusb_fx_type ezusb_fx1 = {
static int ezusb_writememory(struct usb_device *dev, int address,
unsigned char *data, int length, __u8 request)
{
- int result;
- unsigned char *transfer_buffer;
-
if (!dev)
return -ENODEV;
- transfer_buffer = kmemdup(data, length, GFP_KERNEL);
- if (!transfer_buffer) {
- dev_err(&dev->dev, "%s - kmalloc(%d) failed.\n",
- __func__, length);
- return -ENOMEM;
- }
- result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
+ return usb_control_msg_send(dev, 0, request,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- address, 0, transfer_buffer, length, 3000);
-
- kfree(transfer_buffer);
- return result;
+ address, 0, data, length, 3000, GFP_KERNEL);
}
static int ezusb_set_reset(struct usb_device *dev, unsigned short cpucs_reg,
diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c
index 551074f5b7ad..4bc816bb09bb 100644
--- a/drivers/usb/misc/usbsevseg.c
+++ b/drivers/usb/misc/usbsevseg.c
@@ -74,15 +74,10 @@ static void update_display_powered(struct usb_sevsegdev *mydev)
if (mydev->shadow_power != 1)
return;
- rc = usb_control_msg(mydev->udev,
- usb_sndctrlpipe(mydev->udev, 0),
- 0x12,
- 0x48,
- (80 * 0x100) + 10, /* (power mode) */
- (0x00 * 0x100) + (mydev->powered ? 1 : 0),
- NULL,
- 0,
- 2000);
+ rc = usb_control_msg_send(mydev->udev, 0, 0x12, 0x48,
+ (80 * 0x100) + 10, /* (power mode) */
+ (0x00 * 0x100) + (mydev->powered ? 1 : 0),
+ NULL, 0, 2000, GFP_KERNEL);
if (rc < 0)
dev_dbg(&mydev->udev->dev, "power retval = %d\n", rc);
@@ -99,15 +94,10 @@ static void update_display_mode(struct usb_sevsegdev *mydev)
if(mydev->shadow_power != 1)
return;
- rc = usb_control_msg(mydev->udev,
- usb_sndctrlpipe(mydev->udev, 0),
- 0x12,
- 0x48,
- (82 * 0x100) + 10, /* (set mode) */
- (mydev->mode_msb * 0x100) + mydev->mode_lsb,
- NULL,
- 0,
- 2000);
+ rc = usb_control_msg_send(mydev->udev, 0, 0x12, 0x48,
+ (82 * 0x100) + 10, /* (set mode) */
+ (mydev->mode_msb * 0x100) + mydev->mode_lsb,
+ NULL, 0, 2000, GFP_NOIO);
if (rc < 0)
dev_dbg(&mydev->udev->dev, "mode retval = %d\n", rc);
@@ -117,48 +107,32 @@ static void update_display_visual(struct usb_sevsegdev *mydev, gfp_t mf)
{
int rc;
int i;
- unsigned char *buffer;
+ unsigned char buffer[MAXLEN] = {0};
u8 decimals = 0;
if(mydev->shadow_power != 1)
return;
- buffer = kzalloc(MAXLEN, mf);
- if (!buffer)
- return;
-
/* The device is right to left, where as you write left to right */
for (i = 0; i < mydev->textlength; i++)
buffer[i] = mydev->text[mydev->textlength-1-i];
- rc = usb_control_msg(mydev->udev,
- usb_sndctrlpipe(mydev->udev, 0),
- 0x12,
- 0x48,
- (85 * 0x100) + 10, /* (write text) */
- (0 * 0x100) + mydev->textmode, /* mode */
- buffer,
- mydev->textlength,
- 2000);
+ rc = usb_control_msg_send(mydev->udev, 0, 0x12, 0x48,
+ (85 * 0x100) + 10, /* (write text) */
+ (0 * 0x100) + mydev->textmode, /* mode */
+ &buffer, mydev->textlength, 2000, mf);
if (rc < 0)
dev_dbg(&mydev->udev->dev, "write retval = %d\n", rc);
- kfree(buffer);
-
/* The device is right to left, where as you write left to right */
for (i = 0; i < sizeof(mydev->decimals); i++)
decimals |= mydev->decimals[i] << i;
- rc = usb_control_msg(mydev->udev,
- usb_sndctrlpipe(mydev->udev, 0),
- 0x12,
- 0x48,
- (86 * 0x100) + 10, /* (set decimal) */
- (0 * 0x100) + decimals, /* decimals */
- NULL,
- 0,
- 2000);
+ rc = usb_control_msg_send(mydev->udev, 0, 0x12, 0x48,
+ (86 * 0x100) + 10, /* (set decimal) */
+ (0 * 0x100) + decimals, /* decimals */
+ NULL, 0, 2000, mf);
if (rc < 0)
dev_dbg(&mydev->udev->dev, "decimal retval = %d\n", rc);
diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index c871b94f3e6f..0a8cd446cf1b 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c
@@ -24,6 +24,16 @@
#define WC1_IS_EN BIT(25)
#define WC1_IS_P BIT(6) /* polarity for ip sleep */
+/* mt8183 */
+#define PERI_WK_CTRL0 0x0
+#define WC0_IS_C(x) ((u32)(((x) & 0xf) << 28)) /* cycle debounce */
+#define WC0_IS_P BIT(12) /* polarity */
+#define WC0_IS_EN BIT(6)
+
+/* mt8192 */
+#define WC0_SSUSB0_CDEN BIT(6)
+#define WC0_IS_SPM_EN BIT(1)
+
/* mt2712 etc */
#define PERI_SSUSB_SPM_CTRL 0x0
#define SSC_IP_SLEEP_EN BIT(4)
@@ -32,6 +42,8 @@
enum ssusb_uwk_vers {
SSUSB_UWK_V1 = 1,
SSUSB_UWK_V2,
+ SSUSB_UWK_V1_1 = 101, /* specific revision 1.01 */
+ SSUSB_UWK_V1_2, /* specific revision 1.02 */
};
/*
@@ -48,6 +60,16 @@ static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable)
msk = WC1_IS_EN | WC1_IS_C(0xf) | WC1_IS_P;
val = enable ? (WC1_IS_EN | WC1_IS_C(0x8)) : 0;
break;
+ case SSUSB_UWK_V1_1:
+ reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;
+ msk = WC0_IS_EN | WC0_IS_C(0xf) | WC0_IS_P;
+ val = enable ? (WC0_IS_EN | WC0_IS_C(0x8)) : 0;
+ break;
+ case SSUSB_UWK_V1_2:
+ reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;
+ msk = WC0_SSUSB0_CDEN | WC0_IS_SPM_EN;
+ val = enable ? msk : 0;
+ break;
case SSUSB_UWK_V2:
reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
msk = SSC_IP_SLEEP_EN | SSC_SPM_INT_EN;
@@ -109,7 +131,7 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb)
void __iomem *ibase = ssusb->ippc_base;
int num_u3p = ssusb->u3_ports;
int num_u2p = ssusb->u2_ports;
- int u3_ports_disabed;
+ int u3_ports_disabled;
u32 check_clk;
u32 value;
int i;
@@ -118,10 +140,10 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb)
mtu3_clrbits(ibase, U3D_SSUSB_IP_PW_CTRL1, SSUSB_IP_HOST_PDN);
/* power on and enable u3 ports except skipped ones */
- u3_ports_disabed = 0;
+ u3_ports_disabled = 0;
for (i = 0; i < num_u3p; i++) {
if ((0x1 << i) & ssusb->u3p_dis_msk) {
- u3_ports_disabed++;
+ u3_ports_disabled++;
continue;
}
@@ -140,7 +162,7 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb)
}
check_clk = SSUSB_XHCI_RST_B_STS;
- if (num_u3p > u3_ports_disabed)
+ if (num_u3p > u3_ports_disabled)
check_clk = SSUSB_U3_MAC_RST_B_STS;
return ssusb_check_clocks(ssusb, check_clk);
diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
index d44d5417438d..7786a95a874e 100644
--- a/drivers/usb/mtu3/mtu3_plat.c
+++ b/drivers/usb/mtu3/mtu3_plat.c
@@ -502,25 +502,20 @@ static const struct dev_pm_ops mtu3_pm_ops = {
#define DEV_PM_OPS (IS_ENABLED(CONFIG_PM) ? &mtu3_pm_ops : NULL)
-#ifdef CONFIG_OF
-
static const struct of_device_id mtu3_of_match[] = {
{.compatible = "mediatek,mt8173-mtu3",},
{.compatible = "mediatek,mtu3",},
{},
};
-
MODULE_DEVICE_TABLE(of, mtu3_of_match);
-#endif
-
static struct platform_driver mtu3_driver = {
.probe = mtu3_probe,
.remove = mtu3_remove,
.driver = {
.name = MTU3_DRIVER_NAME,
.pm = DEV_PM_OPS,
- .of_match_table = of_match_ptr(mtu3_of_match),
+ .of_match_table = mtu3_of_match,
},
};
module_platform_driver(mtu3_driver);
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index fc0457db62e1..8f09a387b773 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2070,7 +2070,7 @@ static void musb_irq_work(struct work_struct *data)
struct musb *musb = container_of(data, struct musb, irq_work.work);
int error;
- error = pm_runtime_get_sync(musb->controller);
+ error = pm_runtime_resume_and_get(musb->controller);
if (error < 0) {
dev_err(musb->controller, "Could not enable: %i\n", error);
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index dbe5623db1e0..a8a65effe68b 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -375,11 +375,11 @@ struct musb {
unsigned dyn_fifo:1; /* dynamic FIFO supported? */
unsigned bulk_split:1;
-#define can_bulk_split(musb,type) \
+#define can_bulk_split(musb, type) \
(((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_split)
unsigned bulk_combine:1;
-#define can_bulk_combine(musb,type) \
+#define can_bulk_combine(musb, type) \
(((type) == USB_ENDPOINT_XFER_BULK) && (musb)->bulk_combine)
/* is_suspended means USB B_PERIPHERAL suspend */
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index e6fa13701808..b5e7991dc7d9 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -160,8 +160,10 @@ static int usbhsf_pkt_handler(struct usbhs_pipe *pipe, int type)
usbhs_lock(priv, flags);
pkt = __usbhsf_pkt_get(pipe);
- if (!pkt)
+ if (!pkt) {
+ ret = -EINVAL;
goto __usbhs_pkt_handler_end;
+ }
switch (type) {
case USBHSF_PKT_PREPARE:
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index 97f37077b7f9..33b637d0d8d9 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -189,6 +189,8 @@ usb_role_switch_find_by_fwnode(const struct fwnode_handle *fwnode)
return NULL;
dev = class_find_device_by_fwnode(role_class, fwnode);
+ if (dev)
+ WARN_ON(!try_module_get(dev->parent->driver->owner));
return dev ? to_role_switch(dev) : NULL;
}
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index b9bedfe9bd09..5dd710e9fe7d 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -385,18 +385,6 @@ err_free:
return result;
}
-static int ark3116_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- ss->type = PORT_16654;
- ss->line = port->minor;
- ss->port = port->port_number;
- ss->baud_base = 460800;
- return 0;
-}
-
static int ark3116_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
@@ -633,7 +621,6 @@ static struct usb_serial_driver ark3116_device = {
.port_probe = ark3116_port_probe,
.port_remove = ark3116_port_remove,
.set_termios = ark3116_set_termios,
- .get_serial = ark3116_get_serial_info,
.tiocmget = ark3116_tiocmget,
.tiocmset = ark3116_tiocmset,
.tiocmiwait = usb_serial_generic_tiocmiwait,
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index a373cd63b3a4..ee595d1bea0a 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -1410,17 +1410,6 @@ static void cp210x_break_ctl(struct tty_struct *tty, int break_state)
}
#ifdef CONFIG_GPIOLIB
-static int cp210x_gpio_request(struct gpio_chip *gc, unsigned int offset)
-{
- struct usb_serial *serial = gpiochip_get_data(gc);
- struct cp210x_serial_private *priv = usb_get_serial_data(serial);
-
- if (priv->gpio_altfunc & BIT(offset))
- return -ENODEV;
-
- return 0;
-}
-
static int cp210x_gpio_get(struct gpio_chip *gc, unsigned int gpio)
{
struct usb_serial *serial = gpiochip_get_data(gc);
@@ -1549,6 +1538,24 @@ static int cp210x_gpio_set_config(struct gpio_chip *gc, unsigned int gpio,
return -ENOTSUPP;
}
+static int cp210x_gpio_init_valid_mask(struct gpio_chip *gc,
+ unsigned long *valid_mask, unsigned int ngpios)
+{
+ struct usb_serial *serial = gpiochip_get_data(gc);
+ struct cp210x_serial_private *priv = usb_get_serial_data(serial);
+ struct device *dev = &serial->interface->dev;
+ unsigned long altfunc_mask = priv->gpio_altfunc;
+
+ bitmap_complement(valid_mask, &altfunc_mask, ngpios);
+
+ if (bitmap_empty(valid_mask, ngpios))
+ dev_dbg(dev, "no pin configured for GPIO\n");
+ else
+ dev_dbg(dev, "GPIO.%*pbl configured for GPIO\n", ngpios,
+ valid_mask);
+ return 0;
+}
+
/*
* This function is for configuring GPIO using shared pins, where other signals
* are made unavailable by configuring the use of GPIO. This is believed to be
@@ -1786,13 +1793,13 @@ static int cp210x_gpio_init(struct usb_serial *serial)
return result;
priv->gc.label = "cp210x";
- priv->gc.request = cp210x_gpio_request;
priv->gc.get_direction = cp210x_gpio_direction_get;
priv->gc.direction_input = cp210x_gpio_direction_input;
priv->gc.direction_output = cp210x_gpio_direction_output;
priv->gc.get = cp210x_gpio_get;
priv->gc.set = cp210x_gpio_set;
priv->gc.set_config = cp210x_gpio_set_config;
+ priv->gc.init_valid_mask = cp210x_gpio_init_valid_mask;
priv->gc.owner = THIS_MODULE;
priv->gc.parent = &serial->interface->dev;
priv->gc.base = -1;
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 6a8f39147d8e..a7a7af8d05bf 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -820,17 +820,12 @@ static int f81232_carrier_raised(struct usb_serial_port *port)
return 0;
}
-static int f81232_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
+static void f81232_get_serial(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
struct f81232_private *priv = usb_get_serial_port_data(port);
- ss->type = PORT_16550A;
- ss->line = port->minor;
- ss->port = port->port_number;
ss->baud_base = priv->baud_base;
- return 0;
}
static void f81232_interrupt_work(struct work_struct *work)
@@ -953,7 +948,6 @@ static int f81232_port_probe(struct usb_serial_port *port)
usb_set_serial_port_data(port, priv);
- port->port.drain_delay = 256;
priv->port = port;
return 0;
@@ -1021,7 +1015,7 @@ static struct usb_serial_driver f81232_device = {
.close = f81232_close,
.dtr_rts = f81232_dtr_rts,
.carrier_raised = f81232_carrier_raised,
- .get_serial = f81232_get_serial_info,
+ .get_serial = f81232_get_serial,
.break_ctl = f81232_break_ctl,
.set_termios = f81232_set_termios,
.tiocmget = f81232_tiocmget,
@@ -1046,7 +1040,7 @@ static struct usb_serial_driver f81534a_device = {
.close = f81232_close,
.dtr_rts = f81232_dtr_rts,
.carrier_raised = f81232_carrier_raised,
- .get_serial = f81232_get_serial_info,
+ .get_serial = f81232_get_serial,
.break_ctl = f81232_break_ctl,
.set_termios = f81232_set_termios,
.tiocmget = f81232_tiocmget,
diff --git a/drivers/usb/serial/f81534.c b/drivers/usb/serial/f81534.c
index a763b362f081..c0bca52ef92a 100644
--- a/drivers/usb/serial/f81534.c
+++ b/drivers/usb/serial/f81534.c
@@ -1140,19 +1140,14 @@ static void f81534_close(struct usb_serial_port *port)
mutex_unlock(&serial_priv->urb_mutex);
}
-static int f81534_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
+static void f81534_get_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
struct f81534_port_private *port_priv;
port_priv = usb_get_serial_port_data(port);
- ss->type = PORT_16550A;
- ss->port = port->port_number;
- ss->line = port->minor;
ss->baud_base = port_priv->baud_base;
- return 0;
}
static void f81534_process_per_serial_block(struct usb_serial_port *port,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c867592477c9..6f2659e59b2e 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1082,8 +1082,7 @@ static int ftdi_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear);
static int ftdi_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg);
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss);
+static void get_serial_info(struct tty_struct *tty, struct serial_struct *ss);
static int set_serial_info(struct tty_struct *tty,
struct serial_struct *ss);
static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
@@ -1477,8 +1476,7 @@ static int read_latency_timer(struct usb_serial_port *port)
return 0;
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
+static void get_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
struct ftdi_private *priv = usb_get_serial_port_data(port);
@@ -1486,49 +1484,34 @@ static int get_serial_info(struct tty_struct *tty,
ss->flags = priv->flags;
ss->baud_base = priv->baud_base;
ss->custom_divisor = priv->custom_divisor;
- return 0;
}
-static int set_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
+static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
struct ftdi_private *priv = usb_get_serial_port_data(port);
- struct ftdi_private old_priv;
+ int old_flags, old_divisor;
mutex_lock(&priv->cfg_lock);
- old_priv = *priv;
-
- /* Do error checking and permission checking */
if (!capable(CAP_SYS_ADMIN)) {
if ((ss->flags ^ priv->flags) & ~ASYNC_USR_MASK) {
mutex_unlock(&priv->cfg_lock);
return -EPERM;
}
- priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
- (ss->flags & ASYNC_USR_MASK));
- priv->custom_divisor = ss->custom_divisor;
- goto check_and_exit;
- }
-
- if (ss->baud_base != priv->baud_base) {
- mutex_unlock(&priv->cfg_lock);
- return -EINVAL;
}
- /* Make the changes - these are privileged changes! */
+ old_flags = priv->flags;
+ old_divisor = priv->custom_divisor;
- priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
- (ss->flags & ASYNC_FLAGS));
+ priv->flags = ss->flags & ASYNC_FLAGS;
priv->custom_divisor = ss->custom_divisor;
-check_and_exit:
write_latency_timer(port);
- if ((priv->flags ^ old_priv.flags) & ASYNC_SPD_MASK ||
+ if ((priv->flags ^ old_flags) & ASYNC_SPD_MASK ||
((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
- priv->custom_divisor != old_priv.custom_divisor)) {
+ priv->custom_divisor != old_divisor)) {
/* warn about deprecation unless clearing */
if (priv->flags & ASYNC_SPD_MASK)
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 68401adcffde..e6fe3882bf69 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -263,39 +263,9 @@ static const struct divisor_table_entry divisor_table[] = {
static atomic_t CmdUrbs = ATOMIC_INIT(0);
-/* local function prototypes */
+/* function prototypes */
-/* function prototypes for all URB callbacks */
-static void edge_interrupt_callback(struct urb *urb);
-static void edge_bulk_in_callback(struct urb *urb);
-static void edge_bulk_out_data_callback(struct urb *urb);
-static void edge_bulk_out_cmd_callback(struct urb *urb);
-
-/* function prototypes for the usbserial callbacks */
-static int edge_open(struct tty_struct *tty, struct usb_serial_port *port);
static void edge_close(struct usb_serial_port *port);
-static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
-static int edge_write_room(struct tty_struct *tty);
-static int edge_chars_in_buffer(struct tty_struct *tty);
-static void edge_throttle(struct tty_struct *tty);
-static void edge_unthrottle(struct tty_struct *tty);
-static void edge_set_termios(struct tty_struct *tty,
- struct usb_serial_port *port,
- struct ktermios *old_termios);
-static int edge_ioctl(struct tty_struct *tty,
- unsigned int cmd, unsigned long arg);
-static void edge_break(struct tty_struct *tty, int break_state);
-static int edge_tiocmget(struct tty_struct *tty);
-static int edge_tiocmset(struct tty_struct *tty,
- unsigned int set, unsigned int clear);
-static int edge_startup(struct usb_serial *serial);
-static void edge_disconnect(struct usb_serial *serial);
-static void edge_release(struct usb_serial *serial);
-static int edge_port_probe(struct usb_serial_port *port);
-static void edge_port_remove(struct usb_serial_port *port);
-
-/* function prototypes for all of our local functions */
static void process_rcvd_data(struct edgeport_serial *edge_serial,
unsigned char *buffer, __u16 bufferLength);
@@ -309,8 +279,6 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
static int send_iosp_ext_cmd(struct edgeport_port *edge_port, __u8 command,
__u8 param);
static int calc_baud_rate_divisor(struct device *dev, int baud_rate, int *divisor);
-static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
- int baudRate);
static void change_port_settings(struct tty_struct *tty,
struct edgeport_port *edge_port,
struct ktermios *old_termios);
@@ -321,19 +289,8 @@ static int write_cmd_usb(struct edgeport_port *edge_port,
static void send_more_port_data(struct edgeport_serial *edge_serial,
struct edgeport_port *edge_port);
-static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
- __u16 length, const __u8 *data);
-static int rom_read(struct usb_serial *serial, __u16 extAddr, __u16 addr,
- __u16 length, __u8 *data);
static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
__u16 length, const __u8 *data);
-static void get_manufacturing_desc(struct edgeport_serial *edge_serial);
-static void get_boot_desc(struct edgeport_serial *edge_serial);
-static void load_application_firmware(struct edgeport_serial *edge_serial);
-
-static void unicode_to_ascii(char *string, int buflen,
- __le16 *unicode, int unicode_size);
-
/* ************************************************************************ */
/* ************************************************************************ */
@@ -1637,24 +1594,6 @@ static int edge_tiocmget(struct tty_struct *tty)
return result;
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct edgeport_port *edge_port = usb_get_serial_port_data(port);
-
- ss->type = PORT_16550A;
- ss->line = edge_port->port->minor;
- ss->port = edge_port->port->port_number;
- ss->irq = 0;
- ss->xmit_fifo_size = edge_port->maxTxCredits;
- ss->baud_base = 9600;
- ss->close_delay = 5*HZ;
- ss->closing_wait = 30*HZ;
- return 0;
-}
-
-
/*****************************************************************************
* SerialIoctl
* this function handles any ioctl calls to the driver
@@ -3116,7 +3055,6 @@ static struct usb_serial_driver edgeport_2port_device = {
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset,
- .get_serial = get_serial_info,
.tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
.write = edge_write,
@@ -3152,7 +3090,6 @@ static struct usb_serial_driver edgeport_4port_device = {
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset,
- .get_serial = get_serial_info,
.tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
.write = edge_write,
@@ -3188,7 +3125,6 @@ static struct usb_serial_driver edgeport_8port_device = {
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset,
- .get_serial = get_serial_info,
.tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
.write = edge_write,
@@ -3224,7 +3160,6 @@ static struct usb_serial_driver epic_device = {
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset,
- .get_serial = get_serial_info,
.tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
.write = edge_write,
diff --git a/drivers/usb/serial/io_edgeport.h b/drivers/usb/serial/io_edgeport.h
index 43ba53a3a6fa..7c9f62af5ed6 100644
--- a/drivers/usb/serial/io_edgeport.h
+++ b/drivers/usb/serial/io_edgeport.h
@@ -10,7 +10,6 @@
#if !defined(_IO_EDGEPORT_H_)
#define _IO_EDGEPORT_H_
-
#define MAX_RS232_PORTS 8 /* Max # of RS-232 ports per device */
/* typedefs that the insideout headers need */
@@ -21,57 +20,8 @@
#define HIGH8(a) ((unsigned char)((a & 0xff00) >> 8))
#endif
-#ifndef __KERNEL__
-#define __KERNEL__
-#endif
-
#include "io_usbvend.h"
-
-
-/* The following table is used to map the USBx port number to
- * the device serial number (or physical USB path), */
-#define MAX_EDGEPORTS 64
-
-struct comMapper {
- char SerialNumber[MAX_SERIALNUMBER_LEN+1]; /* Serial number/usb path */
- int numPorts; /* Number of ports */
- int Original[MAX_RS232_PORTS]; /* Port numbers set by IOCTL */
- int Port[MAX_RS232_PORTS]; /* Actual used port numbers */
-};
-
-
-#define EDGEPORT_CONFIG_DEVICE "/proc/edgeport"
-
-/* /proc/edgeport Interface
- * This interface uses read/write/lseek interface to talk to the edgeport driver
- * the following read functions are supported: */
-#define PROC_GET_MAPPING_TO_PATH 1
-#define PROC_GET_COM_ENTRY 2
-#define PROC_GET_EDGE_MANUF_DESCRIPTOR 3
-#define PROC_GET_BOOT_DESCRIPTOR 4
-#define PROC_GET_PRODUCT_INFO 5
-#define PROC_GET_STRINGS 6
-#define PROC_GET_CURRENT_COM_MAPPING 7
-
-/* The parameters to the lseek() for the read is: */
-#define PROC_READ_SETUP(Command, Argument) ((Command) + ((Argument)<<8))
-
-
-/* the following write functions are supported: */
-#define PROC_SET_COM_MAPPING 1
-#define PROC_SET_COM_ENTRY 2
-
-
-/* The following structure is passed to the write */
-struct procWrite {
- int Command;
- union {
- struct comMapper Entry;
- int ComMappingBasedOnUSBPort; /* Boolean value */
- } u;
-};
-
/*
* Product information read from the Edgeport
*/
@@ -108,22 +58,4 @@ struct edgeport_product_info {
struct edge_compatibility_bits Epic;
};
-/*
- * Edgeport Stringblock String locations
- */
-#define EDGESTRING_MANUFNAME 1 /* Manufacture Name */
-#define EDGESTRING_PRODNAME 2 /* Product Name */
-#define EDGESTRING_SERIALNUM 3 /* Serial Number */
-#define EDGESTRING_ASSEMNUM 4 /* Assembly Number */
-#define EDGESTRING_OEMASSEMNUM 5 /* OEM Assembly Number */
-#define EDGESTRING_MANUFDATE 6 /* Manufacture Date */
-#define EDGESTRING_ORIGSERIALNUM 7 /* Serial Number */
-
-struct string_block {
- __u16 NumStrings; /* Number of strings in block */
- __u16 Strings[1]; /* Start of string block */
-};
-
-
-
#endif
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index e800547be9e0..39503fdccebf 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -60,14 +60,12 @@
#define EDGE_READ_URB_STOPPING 1
#define EDGE_READ_URB_STOPPED 2
-#define EDGE_CLOSING_WAIT 4000 /* in .01 sec */
-
/* Product information read from the Edgeport */
struct product_info {
int TiMode; /* Current TI Mode */
- __u8 hardware_type; /* Type of hardware */
-} __attribute__((packed));
+ u8 hardware_type; /* Type of hardware */
+} __packed;
/*
* Edgeport firmware header
@@ -89,13 +87,13 @@ struct edgeport_fw_hdr {
} __packed;
struct edgeport_port {
- __u16 uart_base;
- __u16 dma_address;
- __u8 shadow_msr;
- __u8 shadow_mcr;
- __u8 shadow_lsr;
- __u8 lsr_mask;
- __u32 ump_read_timeout; /*
+ u16 uart_base;
+ u16 dma_address;
+ u8 shadow_msr;
+ u8 shadow_mcr;
+ u8 shadow_lsr;
+ u8 lsr_mask;
+ u32 ump_read_timeout; /*
* Number of milliseconds the UMP will
* wait without data before completing
* a read short
@@ -106,7 +104,7 @@ struct edgeport_port {
struct edgeport_serial *edge_serial;
struct usb_serial_port *port;
- __u8 bUartMode; /* Port type, 0: RS232, etc. */
+ u8 bUartMode; /* Port type, 0: RS232, etc. */
spinlock_t ep_lock;
int ep_read_urb_state;
int ep_write_urb_in_use;
@@ -211,7 +209,6 @@ static const struct usb_device_id id_table_combined[] = {
MODULE_DEVICE_TABLE(usb, id_table_combined);
-static int closing_wait = EDGE_CLOSING_WAIT;
static bool ignore_cpu_rev;
static int default_uart_mode; /* RS232 */
@@ -255,8 +252,8 @@ static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
#define TI_VSEND_TIMEOUT_DEFAULT 1000
#define TI_VSEND_TIMEOUT_FW_DOWNLOAD 10000
-static int ti_vread_sync(struct usb_device *dev, __u8 request,
- __u16 value, __u16 index, u8 *data, int size)
+static int ti_vread_sync(struct usb_device *dev, u8 request, u16 value,
+ u16 index, void *data, int size)
{
int status;
@@ -274,7 +271,7 @@ static int ti_vread_sync(struct usb_device *dev, __u8 request,
}
static int ti_vsend_sync(struct usb_device *dev, u8 request, u16 value,
- u16 index, u8 *data, int size, int timeout)
+ u16 index, void *data, int size, int timeout)
{
int status;
@@ -287,27 +284,30 @@ static int ti_vsend_sync(struct usb_device *dev, u8 request, u16 value,
return 0;
}
-static int send_cmd(struct usb_device *dev, __u8 command,
- __u8 moduleid, __u16 value, u8 *data,
- int size)
+static int read_port_cmd(struct usb_serial_port *port, u8 command, u16 value,
+ void *data, int size)
+{
+ return ti_vread_sync(port->serial->dev, command, value,
+ UMPM_UART1_PORT + port->port_number,
+ data, size);
+}
+
+static int send_port_cmd(struct usb_serial_port *port, u8 command, u16 value,
+ void *data, int size)
{
- return ti_vsend_sync(dev, command, value, moduleid, data, size,
- TI_VSEND_TIMEOUT_DEFAULT);
+ return ti_vsend_sync(port->serial->dev, command, value,
+ UMPM_UART1_PORT + port->port_number,
+ data, size, TI_VSEND_TIMEOUT_DEFAULT);
}
/* clear tx/rx buffers and fifo in TI UMP */
-static int purge_port(struct usb_serial_port *port, __u16 mask)
+static int purge_port(struct usb_serial_port *port, u16 mask)
{
int port_number = port->port_number;
dev_dbg(&port->dev, "%s - port %d, mask %x\n", __func__, port_number, mask);
- return send_cmd(port->serial->dev,
- UMPC_PURGE_PORT,
- (__u8)(UMPM_UART1_PORT + port_number),
- mask,
- NULL,
- 0);
+ return send_port_cmd(port, UMPC_PURGE_PORT, mask, NULL, 0);
}
/**
@@ -319,10 +319,10 @@ static int purge_port(struct usb_serial_port *port, __u16 mask)
* @buffer: pointer to input data buffer
*/
static int read_download_mem(struct usb_device *dev, int start_address,
- int length, __u8 address_type, __u8 *buffer)
+ int length, u8 address_type, u8 *buffer)
{
int status = 0;
- __u8 read_length;
+ u8 read_length;
u16 be_start_address;
dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length);
@@ -335,7 +335,7 @@ static int read_download_mem(struct usb_device *dev, int start_address,
if (length > 64)
read_length = 64;
else
- read_length = (__u8)length;
+ read_length = (u8)length;
if (read_length > 1) {
dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, read_length);
@@ -346,7 +346,7 @@ static int read_download_mem(struct usb_device *dev, int start_address,
*/
be_start_address = swab16((u16)start_address);
status = ti_vread_sync(dev, UMPC_MEMORY_READ,
- (__u16)address_type,
+ (u16)address_type,
be_start_address,
buffer, read_length);
@@ -368,7 +368,7 @@ static int read_download_mem(struct usb_device *dev, int start_address,
}
static int read_ram(struct usb_device *dev, int start_address,
- int length, __u8 *buffer)
+ int length, u8 *buffer)
{
return read_download_mem(dev, start_address, length,
DTK_ADDR_SPACE_XDATA, buffer);
@@ -376,7 +376,7 @@ static int read_ram(struct usb_device *dev, int start_address,
/* Read edgeport memory to a given block */
static int read_boot_mem(struct edgeport_serial *serial,
- int start_address, int length, __u8 *buffer)
+ int start_address, int length, u8 *buffer)
{
int status = 0;
int i;
@@ -384,7 +384,7 @@ static int read_boot_mem(struct edgeport_serial *serial,
for (i = 0; i < length; i++) {
status = ti_vread_sync(serial->serial->dev,
UMPC_MEMORY_READ, serial->TI_I2C_Type,
- (__u16)(start_address+i), &buffer[i], 0x01);
+ (u16)(start_address+i), &buffer[i], 0x01);
if (status) {
dev_dbg(&serial->serial->dev->dev, "%s - ERROR %x\n", __func__, status);
return status;
@@ -402,7 +402,7 @@ static int read_boot_mem(struct edgeport_serial *serial,
/* Write given block to TI EPROM memory */
static int write_boot_mem(struct edgeport_serial *serial,
- int start_address, int length, __u8 *buffer)
+ int start_address, int length, u8 *buffer)
{
int status = 0;
int i;
@@ -436,7 +436,7 @@ static int write_boot_mem(struct edgeport_serial *serial,
/* Write edgeport I2C memory to TI chip */
static int write_i2c_mem(struct edgeport_serial *serial,
- int start_address, int length, __u8 address_type, __u8 *buffer)
+ int start_address, int length, u8 address_type, u8 *buffer)
{
struct device *dev = &serial->serial->dev->dev;
int status = 0;
@@ -522,7 +522,7 @@ static int tx_active(struct edgeport_port *port)
{
int status;
struct out_endpoint_desc_block *oedb;
- __u8 *lsr;
+ u8 *lsr;
int bytes_left = 0;
oedb = kmalloc(sizeof(*oedb), GFP_KERNEL);
@@ -593,7 +593,7 @@ static int choose_config(struct usb_device *dev)
}
static int read_rom(struct edgeport_serial *serial,
- int start_address, int length, __u8 *buffer)
+ int start_address, int length, u8 *buffer)
{
int status;
@@ -611,7 +611,7 @@ static int read_rom(struct edgeport_serial *serial,
}
static int write_rom(struct edgeport_serial *serial, int start_address,
- int length, __u8 *buffer)
+ int length, u8 *buffer)
{
if (serial->product_info.TiMode == TI_MODE_BOOT)
return write_boot_mem(serial, start_address, length,
@@ -636,7 +636,7 @@ static int get_descriptor_addr(struct edgeport_serial *serial,
status = read_rom(serial,
start_address,
sizeof(struct ti_i2c_desc),
- (__u8 *)rom_desc);
+ (u8 *)rom_desc);
if (status)
return 0;
@@ -652,13 +652,13 @@ static int get_descriptor_addr(struct edgeport_serial *serial,
}
/* Validate descriptor checksum */
-static int valid_csum(struct ti_i2c_desc *rom_desc, __u8 *buffer)
+static int valid_csum(struct ti_i2c_desc *rom_desc, u8 *buffer)
{
- __u16 i;
- __u8 cs = 0;
+ u16 i;
+ u8 cs = 0;
for (i = 0; i < le16_to_cpu(rom_desc->Size); i++)
- cs = (__u8)(cs + buffer[i]);
+ cs = (u8)(cs + buffer[i]);
if (cs != rom_desc->CheckSum) {
pr_debug("%s - Mismatch %x - %x", __func__, rom_desc->CheckSum, cs);
@@ -674,8 +674,8 @@ static int check_i2c_image(struct edgeport_serial *serial)
int status = 0;
struct ti_i2c_desc *rom_desc;
int start_address = 2;
- __u8 *buffer;
- __u16 ttype;
+ u8 *buffer;
+ u16 ttype;
rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
if (!rom_desc)
@@ -703,7 +703,7 @@ static int check_i2c_image(struct edgeport_serial *serial)
status = read_rom(serial,
start_address,
sizeof(struct ti_i2c_desc),
- (__u8 *)rom_desc);
+ (u8 *)rom_desc);
if (status)
break;
@@ -748,7 +748,7 @@ out:
return status;
}
-static int get_manuf_info(struct edgeport_serial *serial, __u8 *buffer)
+static int get_manuf_info(struct edgeport_serial *serial, u8 *buffer)
{
int status;
int start_address;
@@ -793,10 +793,10 @@ exit:
/* Build firmware header used for firmware update */
static int build_i2c_fw_hdr(u8 *header, const struct firmware *fw)
{
- __u8 *buffer;
+ u8 *buffer;
int buffer_size;
int i;
- __u8 cs = 0;
+ u8 cs = 0;
struct ti_i2c_desc *i2c_header;
struct ti_i2c_image_header *img_header;
struct ti_i2c_firmware_rec *firmware_rec;
@@ -840,7 +840,7 @@ static int build_i2c_fw_hdr(u8 *header, const struct firmware *fw)
le16_to_cpu(img_header->Length));
for (i=0; i < buffer_size; i++) {
- cs = (__u8)(cs + buffer[i]);
+ cs = (u8)(cs + buffer[i]);
}
kfree(buffer);
@@ -916,7 +916,7 @@ static int bulk_xfer(struct usb_serial *serial, void *buffer,
}
/* Download given firmware image to the device (IN BOOT MODE) */
-static int download_code(struct edgeport_serial *serial, __u8 *image,
+static int download_code(struct edgeport_serial *serial, u8 *image,
int image_length)
{
int status = 0;
@@ -1090,7 +1090,7 @@ static int do_download_mode(struct edgeport_serial *serial,
if (!ti_manuf_desc)
return -ENOMEM;
- status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
+ status = get_manuf_info(serial, (u8 *)ti_manuf_desc);
if (status) {
kfree(ti_manuf_desc);
return status;
@@ -1135,7 +1135,7 @@ static int do_download_mode(struct edgeport_serial *serial,
status = read_rom(serial, start_address +
sizeof(struct ti_i2c_desc),
sizeof(struct ti_i2c_firmware_rec),
- (__u8 *)firmware_version);
+ (u8 *)firmware_version);
if (status) {
kfree(firmware_version);
kfree(rom_desc);
@@ -1261,8 +1261,8 @@ static int do_download_mode(struct edgeport_serial *serial,
if (start_address != 0) {
#define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
sizeof(struct ti_i2c_firmware_rec))
- __u8 *header;
- __u8 *vheader;
+ u8 *header;
+ u8 *vheader;
header = kmalloc(HEADER_SIZE, GFP_KERNEL);
if (!header) {
@@ -1408,8 +1408,8 @@ static int do_boot_mode(struct edgeport_serial *serial,
if (!check_i2c_image(serial)) {
struct ti_i2c_image_header *header;
int i;
- __u8 cs = 0;
- __u8 *buffer;
+ u8 cs = 0;
+ u8 *buffer;
int buffer_size;
/*
@@ -1420,7 +1420,7 @@ static int do_boot_mode(struct edgeport_serial *serial,
if (!ti_manuf_desc)
return -ENOMEM;
- status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
+ status = get_manuf_info(serial, (u8 *)ti_manuf_desc);
if (status) {
kfree(ti_manuf_desc);
goto stayinbootmode;
@@ -1463,13 +1463,13 @@ static int do_boot_mode(struct edgeport_serial *serial,
for (i = sizeof(struct ti_i2c_image_header);
i < buffer_size; i++) {
- cs = (__u8)(cs + buffer[i]);
+ cs = (u8)(cs + buffer[i]);
}
header = (struct ti_i2c_image_header *)buffer;
/* update length and checksum after padding */
- header->Length = cpu_to_le16((__u16)(buffer_size -
+ header->Length = cpu_to_le16((u16)(buffer_size -
sizeof(struct ti_i2c_image_header)));
header->CheckSum = cs;
@@ -1504,15 +1504,12 @@ stayinbootmode:
static int ti_do_config(struct edgeport_port *port, int feature, int on)
{
- int port_number = port->port->port_number;
-
on = !!on; /* 1 or 0 not bitmask */
- return send_cmd(port->port->serial->dev,
- feature, (__u8)(UMPM_UART1_PORT + port_number),
- on, NULL, 0);
+
+ return send_port_cmd(port->port, feature, on, NULL, 0);
}
-static int restore_mcr(struct edgeport_port *port, __u8 mcr)
+static int restore_mcr(struct edgeport_port *port, u8 mcr)
{
int status = 0;
@@ -1528,9 +1525,9 @@ static int restore_mcr(struct edgeport_port *port, __u8 mcr)
}
/* Convert TI LSR to standard UART flags */
-static __u8 map_line_status(__u8 ti_lsr)
+static u8 map_line_status(u8 ti_lsr)
{
- __u8 lsr = 0;
+ u8 lsr = 0;
#define MAP_FLAG(flagUmp, flagUart) \
if (ti_lsr & flagUmp) \
@@ -1548,7 +1545,7 @@ static __u8 map_line_status(__u8 ti_lsr)
return lsr;
}
-static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
+static void handle_new_msr(struct edgeport_port *edge_port, u8 msr)
{
struct async_icount *icount;
struct tty_struct *tty;
@@ -1584,10 +1581,10 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
}
static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
- __u8 lsr, __u8 data)
+ u8 lsr, u8 data)
{
struct async_icount *icount;
- __u8 new_lsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR |
+ u8 new_lsr = (u8)(lsr & (u8)(LSR_OVER_ERR | LSR_PAR_ERR |
LSR_FRM_ERR | LSR_BREAK));
dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);
@@ -1599,7 +1596,7 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
* Parity and Framing errors only count if they
* occur exclusive of a break being received.
*/
- new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
+ new_lsr &= (u8)(LSR_OVER_ERR | LSR_BREAK);
/* Place LSR data byte into Rx buffer */
if (lsr_data)
@@ -1628,8 +1625,8 @@ static void edge_interrupt_callback(struct urb *urb)
int port_number;
int function;
int retval;
- __u8 lsr;
- __u8 msr;
+ u8 lsr;
+ u8 msr;
int status = urb->status;
switch (status) {
@@ -1837,7 +1834,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
struct edgeport_serial *edge_serial;
struct usb_device *dev;
struct urb *urb;
- int port_number;
int status;
u16 open_settings;
u8 transaction_timeout;
@@ -1845,8 +1841,6 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
if (edge_port == NULL)
return -ENODEV;
- port_number = port->port_number;
-
dev = port->serial->dev;
/* turn off loopback */
@@ -1878,8 +1872,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
dev_dbg(&port->dev, "%s - Sending UMPC_OPEN_PORT\n", __func__);
/* Tell TI to open and start the port */
- status = send_cmd(dev, UMPC_OPEN_PORT,
- (u8)(UMPM_UART1_PORT + port_number), open_settings, NULL, 0);
+ status = send_port_cmd(port, UMPC_OPEN_PORT, open_settings, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot send open command, %d\n",
__func__, status);
@@ -1887,8 +1880,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
}
/* Start the DMA? */
- status = send_cmd(dev, UMPC_START_PORT,
- (u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
+ status = send_port_cmd(port, UMPC_START_PORT, 0, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot send start DMA command, %d\n",
__func__, status);
@@ -1905,9 +1897,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
}
/* Read Initial MSR */
- status = ti_vread_sync(dev, UMPC_READ_MSR, 0,
- (__u16)(UMPM_UART1_PORT + port_number),
- &edge_port->shadow_msr, 1);
+ status = read_port_cmd(port, UMPC_READ_MSR, 0, &edge_port->shadow_msr, 1);
if (status) {
dev_err(&port->dev, "%s - cannot send read MSR command, %d\n",
__func__, status);
@@ -1971,9 +1961,7 @@ static void edge_close(struct usb_serial_port *port)
{
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
- struct usb_serial *serial = port->serial;
unsigned long flags;
- int port_number;
edge_serial = usb_get_serial_data(port->serial);
edge_port = usb_get_serial_port_data(port);
@@ -1994,9 +1982,7 @@ static void edge_close(struct usb_serial_port *port)
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
dev_dbg(&port->dev, "%s - send umpc_close_port\n", __func__);
- port_number = port->port_number;
- send_cmd(serial->dev, UMPC_CLOSE_PORT,
- (__u8)(UMPM_UART1_PORT + port_number), 0, NULL, 0);
+ send_port_cmd(port, UMPC_CLOSE_PORT, 0, NULL, 0);
mutex_lock(&edge_serial->es_lock);
--edge_port->edge_serial->num_ports_open;
@@ -2229,7 +2215,6 @@ static void change_port_settings(struct tty_struct *tty,
int baud;
unsigned cflag;
int status;
- int port_number = edge_port->port->port_number;
config = kmalloc (sizeof (*config), GFP_KERNEL);
if (!config) {
@@ -2244,7 +2229,7 @@ static void change_port_settings(struct tty_struct *tty,
/* These flags must be set */
config->wFlags |= UMP_MASK_UART_FLAGS_RECEIVE_MS_INT;
config->wFlags |= UMP_MASK_UART_FLAGS_AUTO_START_ON_ERR;
- config->bUartMode = (__u8)(edge_port->bUartMode);
+ config->bUartMode = (u8)(edge_port->bUartMode);
switch (cflag & CSIZE) {
case CS5:
@@ -2336,7 +2321,7 @@ static void change_port_settings(struct tty_struct *tty,
}
edge_port->baud_rate = baud;
- config->wBaudRate = (__u16)((461550L + baud/2) / baud);
+ config->wBaudRate = (u16)((461550L + baud/2) / baud);
/* FIXME: Recompute actual baud from divisor here */
@@ -2355,9 +2340,8 @@ static void change_port_settings(struct tty_struct *tty,
cpu_to_be16s(&config->wFlags);
cpu_to_be16s(&config->wBaudRate);
- status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,
- (__u8)(UMPM_UART1_PORT + port_number),
- 0, (__u8 *)config, sizeof(*config));
+ status = send_port_cmd(edge_port->port, UMPC_SET_CONFIG, 0, config,
+ sizeof(*config));
if (status)
dev_dbg(dev, "%s - error %d when trying to write config to device\n",
__func__, status);
@@ -2433,28 +2417,6 @@ static int edge_tiocmget(struct tty_struct *tty)
return result;
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct edgeport_port *edge_port = usb_get_serial_port_data(port);
- unsigned cwait;
-
- cwait = edge_port->port->port.closing_wait;
- if (cwait != ASYNC_CLOSING_WAIT_NONE)
- cwait = jiffies_to_msecs(cwait) / 10;
-
- ss->type = PORT_16550A;
- ss->line = edge_port->port->minor;
- ss->port = edge_port->port->port_number;
- ss->irq = 0;
- ss->xmit_fifo_size = edge_port->port->bulk_out_size;
- ss->baud_base = 9600;
- ss->close_delay = 5*HZ;
- ss->closing_wait = cwait;
- return 0;
-}
-
static void edge_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
@@ -2615,7 +2577,10 @@ static int edge_port_probe(struct usb_serial_port *port)
if (ret)
goto err;
- port->port.closing_wait = msecs_to_jiffies(closing_wait * 10);
+ /*
+ * The LSR does not tell when the transmitter shift register has
+ * emptied so add a one-character drain delay.
+ */
port->port.drain_delay = 1;
return 0;
@@ -2713,7 +2678,6 @@ static struct usb_serial_driver edgeport_1port_device = {
.release = edge_release,
.port_probe = edge_port_probe,
.port_remove = edge_port_remove,
- .get_serial = get_serial_info,
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset,
@@ -2752,7 +2716,6 @@ static struct usb_serial_driver edgeport_2port_device = {
.release = edge_release,
.port_probe = edge_port_probe,
.port_remove = edge_port_remove,
- .get_serial = get_serial_info,
.set_termios = edge_set_termios,
.tiocmget = edge_tiocmget,
.tiocmset = edge_tiocmset,
@@ -2783,9 +2746,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("edgeport/down3.bin");
-module_param(closing_wait, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain, in .01 secs");
-
module_param(ignore_cpu_rev, bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ignore_cpu_rev,
"Ignore the cpu revision when connecting to a device");
diff --git a/drivers/usb/serial/io_ti.h b/drivers/usb/serial/io_ti.h
index 50b899d55ed0..24fe1312c84d 100644
--- a/drivers/usb/serial/io_ti.h
+++ b/drivers/usb/serial/io_ti.h
@@ -133,15 +133,15 @@
#define UMPD_OEDB2_ADDRESS 0xFF10
struct out_endpoint_desc_block {
- __u8 Configuration;
- __u8 XBufAddr;
- __u8 XByteCount;
- __u8 Unused1;
- __u8 Unused2;
- __u8 YBufAddr;
- __u8 YByteCount;
- __u8 BufferSize;
-} __attribute__((packed));
+ u8 Configuration;
+ u8 XBufAddr;
+ u8 XByteCount;
+ u8 Unused1;
+ u8 Unused2;
+ u8 YBufAddr;
+ u8 YByteCount;
+ u8 BufferSize;
+};
/*
@@ -150,16 +150,16 @@ struct out_endpoint_desc_block {
*/
/* UART settings */
struct ump_uart_config {
- __u16 wBaudRate; /* Baud rate */
- __u16 wFlags; /* Bitmap mask of flags */
- __u8 bDataBits; /* 5..8 - data bits per character */
- __u8 bParity; /* Parity settings */
- __u8 bStopBits; /* Stop bits settings */
+ u16 wBaudRate; /* Baud rate */
+ u16 wFlags; /* Bitmap mask of flags */
+ u8 bDataBits; /* 5..8 - data bits per character */
+ u8 bParity; /* Parity settings */
+ u8 bStopBits; /* Stop bits settings */
char cXon; /* XON character */
char cXoff; /* XOFF character */
- __u8 bUartMode; /* Will be updated when a user */
+ u8 bUartMode; /* Will be updated when a user */
/* interface is defined */
-} __attribute__((packed));
+};
/*
@@ -168,9 +168,9 @@ struct ump_uart_config {
*/
/* Interrupt packet structure */
struct ump_interrupt {
- __u8 bICode; /* Interrupt code (interrupt num) */
- __u8 bIInfo; /* Interrupt information */
-} __attribute__((packed));
+ u8 bICode; /* Interrupt code (interrupt num) */
+ u8 bIInfo; /* Interrupt information */
+};
#define TIUMP_GET_PORT_FROM_CODE(c) (((c) >> 6) & 0x01)
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 093afd67a664..19753611e7b0 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -643,7 +643,6 @@ static void iuu_uart_read_callback(struct urb *urb)
struct iuu_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
int status = urb->status;
- int error = 0;
int len = 0;
unsigned char *data = urb->transfer_buffer;
priv->poll++;
@@ -660,12 +659,11 @@ static void iuu_uart_read_callback(struct urb *urb)
if (urb->actual_length > 1) {
dev_dbg(&port->dev, "%s - urb->actual_length = %i\n", __func__,
urb->actual_length);
- error = 1;
return;
}
/* if len > 0 call readbuf */
- if (len > 0 && error == 0) {
+ if (len > 0) {
dev_dbg(&port->dev, "%s - call read buf - len to read is %i\n",
__func__, len);
status = iuu_read_buf(port, len);
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 622077dcc344..b04a029e3657 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -41,27 +41,7 @@
#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
-/* Function prototypes for Keyspan serial converter */
-static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port);
-static void keyspan_close(struct usb_serial_port *port);
-static void keyspan_dtr_rts(struct usb_serial_port *port, int on);
-static int keyspan_startup(struct usb_serial *serial);
-static void keyspan_disconnect(struct usb_serial *serial);
-static void keyspan_release(struct usb_serial *serial);
-static int keyspan_port_probe(struct usb_serial_port *port);
-static void keyspan_port_remove(struct usb_serial_port *port);
-static int keyspan_write_room(struct tty_struct *tty);
-static int keyspan_write(struct tty_struct *tty, struct usb_serial_port *port,
- const unsigned char *buf, int count);
static void keyspan_send_setup(struct usb_serial_port *port, int reset_port);
-static void keyspan_set_termios(struct tty_struct *tty,
- struct usb_serial_port *port,
- struct ktermios *old);
-static void keyspan_break_ctl(struct tty_struct *tty, int break_state);
-static int keyspan_tiocmget(struct tty_struct *tty);
-static int keyspan_tiocmset(struct tty_struct *tty, unsigned int set,
- unsigned int clear);
-static int keyspan_fake_startup(struct usb_serial *serial);
static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
u32 baud_rate, u32 baudclk,
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 0bfe4459c37f..f9ce9e7b9b80 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -299,7 +299,7 @@ static int metrousb_tiocmset(struct tty_struct *tty,
unsigned long flags = 0;
unsigned long control_state = 0;
- dev_dbg(tty->dev, "%s - set=%d, clear=%d\n", __func__, set, clear);
+ dev_dbg(&port->dev, "%s - set=%d, clear=%d\n", __func__, set, clear);
spin_lock_irqsave(&metro_priv->lock, flags);
control_state = metro_priv->control_state;
@@ -334,7 +334,7 @@ static void metrousb_unthrottle(struct tty_struct *tty)
/* Submit the urb to read from the port. */
result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
if (result)
- dev_err(tty->dev,
+ dev_err(&port->dev,
"failed submitting interrupt in urb error code=%d\n",
result);
}
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 701dfb32b129..6ee83886e2c9 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1042,7 +1042,7 @@ static int mos7720_write_room(struct tty_struct *tty)
mos7720_port = usb_get_serial_port_data(port);
if (mos7720_port == NULL)
- return -ENODEV;
+ return 0;
/* FIXME: Locking */
for (i = 0; i < NUM_URBS; ++i) {
@@ -1634,23 +1634,6 @@ static int mos7720_tiocmset(struct tty_struct *tty,
return 0;
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7720_port = usb_get_serial_port_data(port);
-
- ss->type = PORT_16550A;
- ss->line = mos7720_port->port->minor;
- ss->port = mos7720_port->port->port_number;
- ss->irq = 0;
- ss->xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
- ss->baud_base = 9600;
- ss->close_delay = 5*HZ;
- ss->closing_wait = 30*HZ;
- return 0;
-}
-
static int mos7720_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
@@ -1790,7 +1773,6 @@ static struct usb_serial_driver moschip7720_2port_driver = {
.ioctl = mos7720_ioctl,
.tiocmget = mos7720_tiocmget,
.tiocmset = mos7720_tiocmset,
- .get_serial = get_serial_info,
.set_termios = mos7720_set_termios,
.write = mos7720_write,
.write_room = mos7720_write_room,
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 1bf0d066f55a..28e4093794e0 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1384,28 +1384,6 @@ static int mos7840_get_lsr_info(struct tty_struct *tty,
}
/*****************************************************************************
- * mos7840_get_serial_info
- * function to get information about serial port
- *****************************************************************************/
-
-static int mos7840_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
-
- ss->type = PORT_16550A;
- ss->line = mos7840_port->port->minor;
- ss->port = mos7840_port->port->port_number;
- ss->irq = 0;
- ss->xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
- ss->baud_base = 9600;
- ss->close_delay = 5 * HZ;
- ss->closing_wait = 30 * HZ;
- return 0;
-}
-
-/*****************************************************************************
* SerialIoctl
* this function handles any ioctl calls to the driver
*****************************************************************************/
@@ -1783,7 +1761,6 @@ static struct usb_serial_driver moschip7840_4port_device = {
.probe = mos7840_probe,
.attach = mos7840_attach,
.ioctl = mos7840_ioctl,
- .get_serial = mos7840_get_serial_info,
.set_termios = mos7840_set_termios,
.break_ctl = mos7840_break,
.tiocmget = mos7840_tiocmget,
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index eecb72aef83e..40c713fae0c3 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -352,23 +352,6 @@ static int opticon_tiocmset(struct tty_struct *tty,
return 0;
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- /* fake emulate a 16550 uart to make userspace code happy */
- ss->type = PORT_16550A;
- ss->line = port->minor;
- ss->port = 0;
- ss->irq = 0;
- ss->xmit_fifo_size = 1024;
- ss->baud_base = 9600;
- ss->close_delay = 5*HZ;
- ss->closing_wait = 30*HZ;
- return 0;
-}
-
static int opticon_port_probe(struct usb_serial_port *port)
{
struct opticon_private *priv;
@@ -410,7 +393,6 @@ static struct usb_serial_driver opticon_device = {
.chars_in_buffer = opticon_chars_in_buffer,
.throttle = usb_serial_generic_throttle,
.unthrottle = usb_serial_generic_unthrottle,
- .get_serial = get_serial_info,
.tiocmget = opticon_tiocmget,
.tiocmset = opticon_tiocmset,
.process_read_urb = opticon_process_read_urb,
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c6969ca72839..3e79a543d3e7 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2095,8 +2095,6 @@ static struct usb_serial_driver option_1port_device = {
.chars_in_buffer = usb_wwan_chars_in_buffer,
.tiocmget = usb_wwan_tiocmget,
.tiocmset = usb_wwan_tiocmset,
- .get_serial = usb_wwan_get_serial_info,
- .set_serial = usb_wwan_set_serial_info,
.attach = option_attach,
.release = option_release,
.port_probe = usb_wwan_port_probe,
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index eed9acd1ae08..fd773d252691 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -173,17 +173,22 @@ MODULE_DEVICE_TABLE(usb, id_table);
static void pl2303_set_break(struct usb_serial_port *port, bool enable);
enum pl2303_type {
- TYPE_01, /* Type 0 and 1 (difference unknown) */
- TYPE_HX, /* HX version of the pl2303 chip */
- TYPE_HXN, /* HXN version of the pl2303 chip */
+ TYPE_H,
+ TYPE_HX,
+ TYPE_TA,
+ TYPE_TB,
+ TYPE_HXD,
+ TYPE_HXN,
TYPE_COUNT
};
struct pl2303_type_data {
+ const char *name;
speed_t max_baud_rate;
unsigned long quirks;
unsigned int no_autoxonxoff:1;
unsigned int no_divisors:1;
+ unsigned int alt_divisors:1;
};
struct pl2303_serial_private {
@@ -200,15 +205,32 @@ struct pl2303_private {
};
static const struct pl2303_type_data pl2303_type_data[TYPE_COUNT] = {
- [TYPE_01] = {
+ [TYPE_H] = {
+ .name = "H",
.max_baud_rate = 1228800,
.quirks = PL2303_QUIRK_LEGACY,
.no_autoxonxoff = true,
},
[TYPE_HX] = {
+ .name = "HX",
+ .max_baud_rate = 6000000,
+ },
+ [TYPE_TA] = {
+ .name = "TA",
+ .max_baud_rate = 6000000,
+ .alt_divisors = true,
+ },
+ [TYPE_TB] = {
+ .name = "TB",
+ .max_baud_rate = 12000000,
+ .alt_divisors = true,
+ },
+ [TYPE_HXD] = {
+ .name = "HXD",
.max_baud_rate = 12000000,
},
[TYPE_HXN] = {
+ .name = "G",
.max_baud_rate = 12000000,
.no_divisors = true,
},
@@ -362,42 +384,82 @@ static int pl2303_calc_num_ports(struct usb_serial *serial,
return 1;
}
+static bool pl2303_supports_hx_status(struct usb_serial *serial)
+{
+ int ret;
+ u8 buf;
+
+ ret = usb_control_msg_recv(serial->dev, 0, VENDOR_READ_REQUEST,
+ VENDOR_READ_REQUEST_TYPE, PL2303_READ_TYPE_HX_STATUS,
+ 0, &buf, 1, 100, GFP_KERNEL);
+
+ return ret == 0;
+}
+
+static int pl2303_detect_type(struct usb_serial *serial)
+{
+ struct usb_device_descriptor *desc = &serial->dev->descriptor;
+ u16 bcdDevice, bcdUSB;
+
+ /*
+ * Legacy PL2303H, variants 0 and 1 (difference unknown).
+ */
+ if (desc->bDeviceClass == 0x02)
+ return TYPE_H; /* variant 0 */
+
+ if (desc->bMaxPacketSize0 != 0x40) {
+ if (desc->bDeviceClass == 0x00 || desc->bDeviceClass == 0xff)
+ return TYPE_H; /* variant 1 */
+
+ return TYPE_H; /* variant 0 */
+ }
+
+ bcdDevice = le16_to_cpu(desc->bcdDevice);
+ bcdUSB = le16_to_cpu(desc->bcdUSB);
+
+ switch (bcdDevice) {
+ case 0x100:
+ /*
+ * Assume it's an HXN-type if the device doesn't support the old read
+ * request value.
+ */
+ if (bcdUSB == 0x200 && !pl2303_supports_hx_status(serial))
+ return TYPE_HXN;
+ break;
+ case 0x300:
+ if (bcdUSB == 0x200)
+ return TYPE_TA;
+
+ return TYPE_HX;
+ case 0x400:
+ return TYPE_HXD;
+ case 0x500:
+ return TYPE_TB;
+ }
+
+ dev_err(&serial->interface->dev,
+ "unknown device type, please report to linux-usb@vger.kernel.org\n");
+ return -ENODEV;
+}
+
static int pl2303_startup(struct usb_serial *serial)
{
struct pl2303_serial_private *spriv;
- enum pl2303_type type = TYPE_01;
+ enum pl2303_type type;
unsigned char *buf;
- int res;
+ int ret;
+
+ ret = pl2303_detect_type(serial);
+ if (ret < 0)
+ return ret;
+
+ type = ret;
+ dev_dbg(&serial->interface->dev, "device type: %s\n", pl2303_type_data[type].name);
spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
if (!spriv)
return -ENOMEM;
- buf = kmalloc(1, GFP_KERNEL);
- if (!buf) {
- kfree(spriv);
- return -ENOMEM;
- }
-
- if (serial->dev->descriptor.bDeviceClass == 0x02)
- type = TYPE_01; /* type 0 */
- else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40)
- type = TYPE_HX;
- else if (serial->dev->descriptor.bDeviceClass == 0x00)
- type = TYPE_01; /* type 1 */
- else if (serial->dev->descriptor.bDeviceClass == 0xFF)
- type = TYPE_01; /* type 1 */
- dev_dbg(&serial->interface->dev, "device type: %d\n", type);
-
- if (type == TYPE_HX) {
- res = usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0),
- VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE,
- PL2303_READ_TYPE_HX_STATUS, 0, buf, 1, 100);
- if (res != 1)
- type = TYPE_HXN;
- }
-
spriv->type = &pl2303_type_data[type];
spriv->quirks = (unsigned long)usb_get_serial_data(serial);
spriv->quirks |= spriv->type->quirks;
@@ -405,6 +467,12 @@ static int pl2303_startup(struct usb_serial *serial)
usb_set_serial_data(serial, spriv);
if (type != TYPE_HXN) {
+ buf = kmalloc(1, GFP_KERNEL);
+ if (!buf) {
+ kfree(spriv);
+ return -ENOMEM;
+ }
+
pl2303_vendor_read(serial, 0x8484, buf);
pl2303_vendor_write(serial, 0x0404, 0);
pl2303_vendor_read(serial, 0x8484, buf);
@@ -419,9 +487,9 @@ static int pl2303_startup(struct usb_serial *serial)
pl2303_vendor_write(serial, 2, 0x24);
else
pl2303_vendor_write(serial, 2, 0x44);
- }
- kfree(buf);
+ kfree(buf);
+ }
return 0;
}
@@ -553,6 +621,45 @@ static speed_t pl2303_encode_baud_rate_divisor(unsigned char buf[4],
return baud;
}
+static speed_t pl2303_encode_baud_rate_divisor_alt(unsigned char buf[4],
+ speed_t baud)
+{
+ unsigned int baseline, mantissa, exponent;
+
+ /*
+ * Apparently, for the TA version the formula is:
+ * baudrate = 12M * 32 / (mantissa * 2^exponent)
+ * where
+ * mantissa = buf[10:0]
+ * exponent = buf[15:13 16]
+ */
+ baseline = 12000000 * 32;
+ mantissa = baseline / baud;
+ if (mantissa == 0)
+ mantissa = 1; /* Avoid dividing by zero if baud > 32*12M. */
+ exponent = 0;
+ while (mantissa >= 2048) {
+ if (exponent < 15) {
+ mantissa >>= 1; /* divide by 2 */
+ exponent++;
+ } else {
+ /* Exponent is maxed. Trim mantissa and leave. */
+ mantissa = 2047;
+ break;
+ }
+ }
+
+ buf[3] = 0x80;
+ buf[2] = exponent & 0x01;
+ buf[1] = (exponent & ~0x01) << 4 | mantissa >> 8;
+ buf[0] = mantissa & 0xff;
+
+ /* Calculate and return the exact baud rate. */
+ baud = (baseline / mantissa) >> exponent;
+
+ return baud;
+}
+
static void pl2303_encode_baud_rate(struct tty_struct *tty,
struct usb_serial_port *port,
u8 buf[4])
@@ -580,6 +687,8 @@ static void pl2303_encode_baud_rate(struct tty_struct *tty,
if (baud == baud_sup)
baud = pl2303_encode_baud_rate_direct(buf, baud);
+ else if (spriv->type->alt_divisors)
+ baud = pl2303_encode_baud_rate_divisor_alt(buf, baud);
else
baud = pl2303_encode_baud_rate_divisor(buf, baud);
@@ -939,18 +1048,6 @@ static int pl2303_carrier_raised(struct usb_serial_port *port)
return 0;
}
-static int pl2303_get_serial(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- ss->type = PORT_16654;
- ss->line = port->minor;
- ss->port = port->port_number;
- ss->baud_base = 460800;
- return 0;
-}
-
static void pl2303_set_break(struct usb_serial_port *port, bool enable)
{
struct usb_serial *serial = port->serial;
@@ -1134,7 +1231,6 @@ static struct usb_serial_driver pl2303_device = {
.close = pl2303_close,
.dtr_rts = pl2303_dtr_rts,
.carrier_raised = pl2303_carrier_raised,
- .get_serial = pl2303_get_serial,
.break_ctl = pl2303_break_ctl,
.set_termios = pl2303_set_termios,
.tiocmget = pl2303_tiocmget,
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index 599dcb2e374d..5f2e7f668e68 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -453,21 +453,6 @@ static void qt2_disconnect(struct usb_serial *serial)
usb_kill_urb(serial_priv->read_urb);
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- ss->line = port->minor;
- ss->port = 0;
- ss->irq = 0;
- ss->xmit_fifo_size = port->bulk_out_size;
- ss->baud_base = 9600;
- ss->close_delay = 5*HZ;
- ss->closing_wait = 30*HZ;
- return 0;
-}
-
static void qt2_process_status(struct usb_serial_port *port, unsigned char *ch)
{
switch (*ch) {
@@ -978,7 +963,6 @@ static struct usb_serial_driver qt2_device = {
.tiocmset = qt2_tiocmset,
.tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
- .get_serial = get_serial_info,
.set_termios = qt2_set_termios,
};
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 89fdc5c19285..3baf7c0f5a98 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -331,21 +331,6 @@ static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port)
return usb_serial_generic_open(tty, port);
}
-static int get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- ss->line = port->minor;
- ss->port = 0;
- ss->irq = 0;
- ss->xmit_fifo_size = port->bulk_out_size;
- ss->baud_base = 9600;
- ss->close_delay = 5*HZ;
- ss->closing_wait = 30*HZ;
- return 0;
-}
-
static int ssu100_attach(struct usb_serial *serial)
{
return ssu100_initdevice(serial->dev);
@@ -545,7 +530,6 @@ static struct usb_serial_driver ssu100_device = {
.tiocmset = ssu100_tiocmset,
.tiocmiwait = usb_serial_generic_tiocmiwait,
.get_icount = usb_serial_generic_get_icount,
- .get_serial = get_serial_info,
.set_termios = ssu100_set_termios,
};
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 7252b0ce75a6..caa46ac23db9 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -121,6 +121,7 @@
#define TI_LSR_ERROR 0x0F
#define TI_LSR_RX_FULL 0x10
#define TI_LSR_TX_EMPTY 0x20
+#define TI_LSR_TX_EMPTY_BOTH 0x40
/* Line control */
#define TI_LCR_BREAK 0x40
@@ -183,7 +184,7 @@ struct ti_uart_config {
char cXon;
char cXoff;
u8 bUartMode;
-} __packed;
+};
/* Get port status */
struct ti_port_status {
@@ -192,7 +193,7 @@ struct ti_port_status {
u8 bErrorCode;
u8 bMSR;
u8 bLSR;
-} __packed;
+};
/* Purge modes */
#define TI_PURGE_OUTPUT 0x00
@@ -223,25 +224,25 @@ struct ti_write_data_bytes {
} __packed;
struct ti_read_data_request {
- __u8 bAddrType;
- __u8 bDataType;
- __u8 bDataCounter;
+ u8 bAddrType;
+ u8 bDataType;
+ u8 bDataCounter;
__be16 wBaseAddrHi;
__be16 wBaseAddrLo;
} __packed;
struct ti_read_data_bytes {
- __u8 bCmdCode;
- __u8 bModuleId;
- __u8 bErrorCode;
- __u8 bData[];
-} __packed;
+ u8 bCmdCode;
+ u8 bModuleId;
+ u8 bErrorCode;
+ u8 bData[];
+};
/* Interrupt struct */
struct ti_interrupt {
- __u8 bICode;
- __u8 bIInfo;
-} __packed;
+ u8 bICode;
+ u8 bIInfo;
+};
/* Interrupt codes */
#define TI_CODE_HARDWARE_ERROR 0xFF
@@ -270,8 +271,6 @@ struct ti_firmware_header {
#define TI_TRANSFER_TIMEOUT 2
-#define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */
-
/* read urb states */
#define TI_READ_URB_RUNNING 0
#define TI_READ_URB_STOPPING 1
@@ -328,27 +327,26 @@ static void ti_recv(struct usb_serial_port *port, unsigned char *data,
static void ti_send(struct ti_port *tport);
static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
static int ti_get_lsr(struct ti_port *tport, u8 *lsr);
-static int ti_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss);
-static int ti_set_serial_info(struct tty_struct *tty,
- struct serial_struct *ss);
+static void ti_get_serial_info(struct tty_struct *tty, struct serial_struct *ss);
static void ti_handle_new_msr(struct ti_port *tport, u8 msr);
static void ti_stop_read(struct ti_port *tport, struct tty_struct *tty);
static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty);
-static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
- __u16 moduleid, __u16 value, __u8 *data, int size);
-static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
- __u16 moduleid, __u16 value, __u8 *data, int size);
+static int ti_command_out_sync(struct usb_device *udev, u8 command,
+ u16 moduleid, u16 value, void *data, int size);
+static int ti_command_in_sync(struct usb_device *udev, u8 command,
+ u16 moduleid, u16 value, void *data, int size);
+static int ti_port_cmd_out(struct usb_serial_port *port, u8 command,
+ u16 value, void *data, int size);
+static int ti_port_cmd_in(struct usb_serial_port *port, u8 command,
+ u16 value, void *data, int size);
static int ti_write_byte(struct usb_serial_port *port, struct ti_device *tdev,
unsigned long addr, u8 mask, u8 byte);
static int ti_download_firmware(struct ti_device *tdev);
-static int closing_wait = TI_DEFAULT_CLOSING_WAIT;
-
static const struct usb_device_id ti_id_table_3410[] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
@@ -435,7 +433,6 @@ static struct usb_serial_driver ti_1port_device = {
.throttle = ti_throttle,
.unthrottle = ti_unthrottle,
.get_serial = ti_get_serial_info,
- .set_serial = ti_set_serial_info,
.set_termios = ti_set_termios,
.tiocmget = ti_tiocmget,
.tiocmset = ti_tiocmset,
@@ -469,7 +466,6 @@ static struct usb_serial_driver ti_2port_device = {
.throttle = ti_throttle,
.unthrottle = ti_unthrottle,
.get_serial = ti_get_serial_info,
- .set_serial = ti_set_serial_info,
.set_termios = ti_set_termios,
.tiocmget = ti_tiocmget,
.tiocmset = ti_tiocmset,
@@ -502,10 +498,6 @@ MODULE_FIRMWARE("moxa/moxa-1131.fw");
MODULE_FIRMWARE("moxa/moxa-1150.fw");
MODULE_FIRMWARE("moxa/moxa-1151.fw");
-module_param(closing_wait, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(closing_wait,
- "Maximum wait for data to drain in close, in .01 secs, default is 4000");
-
MODULE_DEVICE_TABLE(usb, ti_id_table_combined);
module_usb_serial_driver(serial_drivers, ti_id_table_combined);
@@ -613,7 +605,6 @@ static int ti_port_probe(struct usb_serial_port *port)
tport->tp_uart_base_addr = TI_UART1_BASE_ADDR;
else
tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
- port->port.closing_wait = msecs_to_jiffies(10 * closing_wait);
tport->tp_port = port;
tport->tp_tdev = usb_get_serial_data(port->serial);
@@ -624,7 +615,12 @@ static int ti_port_probe(struct usb_serial_port *port)
usb_set_serial_port_data(port, tport);
- port->port.drain_delay = 3;
+ /*
+ * The TUSB5052 LSR does not tell when the transmitter shift register
+ * has emptied so add a one-character drain delay.
+ */
+ if (!tport->tp_tdev->td_is_3410)
+ port->port.drain_delay = 1;
return 0;
}
@@ -643,7 +639,6 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
struct ti_device *tdev;
struct usb_device *dev;
struct urb *urb;
- int port_number;
int status;
u16 open_settings;
@@ -658,8 +653,6 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
if (mutex_lock_interruptible(&tdev->td_open_close_lock))
return -ERESTARTSYS;
- port_number = port->port_number;
-
tport->tp_msr = 0;
tport->tp_shadow_mcr |= (TI_MCR_RTS | TI_MCR_DTR);
@@ -683,31 +676,27 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
if (tty)
ti_set_termios(tty, port, &tty->termios);
- status = ti_command_out_sync(tdev, TI_OPEN_PORT,
- (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
+ status = ti_port_cmd_out(port, TI_OPEN_PORT, open_settings, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot send open command, %d\n",
__func__, status);
goto unlink_int_urb;
}
- status = ti_command_out_sync(tdev, TI_START_PORT,
- (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
+ status = ti_port_cmd_out(port, TI_START_PORT, 0, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot send start command, %d\n",
__func__, status);
goto unlink_int_urb;
}
- status = ti_command_out_sync(tdev, TI_PURGE_PORT,
- (__u8)(TI_UART1_PORT + port_number), TI_PURGE_INPUT, NULL, 0);
+ status = ti_port_cmd_out(port, TI_PURGE_PORT, TI_PURGE_INPUT, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot clear input buffers, %d\n",
__func__, status);
goto unlink_int_urb;
}
- status = ti_command_out_sync(tdev, TI_PURGE_PORT,
- (__u8)(TI_UART1_PORT + port_number), TI_PURGE_OUTPUT, NULL, 0);
+ status = ti_port_cmd_out(port, TI_PURGE_PORT, TI_PURGE_OUTPUT, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot clear output buffers, %d\n",
__func__, status);
@@ -722,16 +711,14 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
if (tty)
ti_set_termios(tty, port, &tty->termios);
- status = ti_command_out_sync(tdev, TI_OPEN_PORT,
- (__u8)(TI_UART1_PORT + port_number), open_settings, NULL, 0);
+ status = ti_port_cmd_out(port, TI_OPEN_PORT, open_settings, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot send open command (2), %d\n",
__func__, status);
goto unlink_int_urb;
}
- status = ti_command_out_sync(tdev, TI_START_PORT,
- (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
+ status = ti_port_cmd_out(port, TI_START_PORT, 0, NULL, 0);
if (status) {
dev_err(&port->dev, "%s - cannot send start command (2), %d\n",
__func__, status);
@@ -772,7 +759,6 @@ static void ti_close(struct usb_serial_port *port)
{
struct ti_device *tdev;
struct ti_port *tport;
- int port_number;
int status;
unsigned long flags;
@@ -788,10 +774,7 @@ static void ti_close(struct usb_serial_port *port)
kfifo_reset_out(&port->write_fifo);
spin_unlock_irqrestore(&tport->tp_lock, flags);
- port_number = port->port_number;
-
- status = ti_command_out_sync(tdev, TI_CLOSE_PORT,
- (__u8)(TI_UART1_PORT + port_number), 0, NULL, 0);
+ status = ti_port_cmd_out(port, TI_CLOSE_PORT, 0, NULL, 0);
if (status)
dev_err(&port->dev,
"%s - cannot send close port command, %d\n"
@@ -861,11 +844,20 @@ static int ti_chars_in_buffer(struct tty_struct *tty)
static bool ti_tx_empty(struct usb_serial_port *port)
{
struct ti_port *tport = usb_get_serial_port_data(port);
+ u8 lsr, mask;
int ret;
- u8 lsr;
+
+ /*
+ * TUSB5052 does not have the TEMT bit to tell if the shift register
+ * is empty.
+ */
+ if (tport->tp_tdev->td_is_3410)
+ mask = TI_LSR_TX_EMPTY_BOTH;
+ else
+ mask = TI_LSR_TX_EMPTY;
ret = ti_get_lsr(tport, &lsr);
- if (!ret && !(lsr & TI_LSR_TX_EMPTY))
+ if (!ret && !(lsr & mask))
return false;
return true;
@@ -903,7 +895,6 @@ static void ti_set_termios(struct tty_struct *tty,
struct ti_uart_config *config;
int baud;
int status;
- int port_number = port->port_number;
unsigned int mcr;
u16 wbaudrate;
u16 wflags = 0;
@@ -919,18 +910,18 @@ static void ti_set_termios(struct tty_struct *tty,
switch (C_CSIZE(tty)) {
case CS5:
- config->bDataBits = TI_UART_5_DATA_BITS;
- break;
+ config->bDataBits = TI_UART_5_DATA_BITS;
+ break;
case CS6:
- config->bDataBits = TI_UART_6_DATA_BITS;
- break;
+ config->bDataBits = TI_UART_6_DATA_BITS;
+ break;
case CS7:
- config->bDataBits = TI_UART_7_DATA_BITS;
- break;
+ config->bDataBits = TI_UART_7_DATA_BITS;
+ break;
default:
case CS8:
- config->bDataBits = TI_UART_8_DATA_BITS;
- break;
+ config->bDataBits = TI_UART_8_DATA_BITS;
+ break;
}
/* CMSPAR isn't supported by this driver */
@@ -997,12 +988,11 @@ static void ti_set_termios(struct tty_struct *tty,
config->wBaudRate = cpu_to_be16(wbaudrate);
config->wFlags = cpu_to_be16(wflags);
- status = ti_command_out_sync(tport->tp_tdev, TI_SET_CONFIG,
- (__u8)(TI_UART1_PORT + port_number), 0, (__u8 *)config,
- sizeof(*config));
+ status = ti_port_cmd_out(port, TI_SET_CONFIG, 0, config,
+ sizeof(*config));
if (status)
dev_err(&port->dev, "%s - cannot set config on port %d, %d\n",
- __func__, port_number, status);
+ __func__, port->port_number, status);
/* SET_CONFIG asserts RTS and DTR, reset them correctly */
mcr = tport->tp_shadow_mcr;
@@ -1011,9 +1001,8 @@ static void ti_set_termios(struct tty_struct *tty,
mcr &= ~(TI_MCR_DTR | TI_MCR_RTS);
status = ti_set_mcr(tport, mcr);
if (status)
- dev_err(&port->dev,
- "%s - cannot set modem control on port %d, %d\n",
- __func__, port_number, status);
+ dev_err(&port->dev, "%s - cannot set modem control on port %d, %d\n",
+ __func__, port->port_number, status);
kfree(config);
}
@@ -1364,9 +1353,7 @@ static int ti_set_mcr(struct ti_port *tport, unsigned int mcr)
static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
{
int size, status;
- struct ti_device *tdev = tport->tp_tdev;
struct usb_serial_port *port = tport->tp_port;
- int port_number = port->port_number;
struct ti_port_status *data;
size = sizeof(struct ti_port_status);
@@ -1374,8 +1361,7 @@ static int ti_get_lsr(struct ti_port *tport, u8 *lsr)
if (!data)
return -ENOMEM;
- status = ti_command_in_sync(tdev, TI_GET_PORT_STATUS,
- (__u8)(TI_UART1_PORT+port_number), 0, (__u8 *)data, size);
+ status = ti_port_cmd_in(port, TI_GET_PORT_STATUS, 0, data, size);
if (status) {
dev_err(&port->dev,
"%s - get port status command failed, %d\n",
@@ -1393,41 +1379,12 @@ free_data:
}
-static int ti_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
+static void ti_get_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
struct ti_port *tport = usb_get_serial_port_data(port);
- unsigned cwait;
-
- cwait = port->port.closing_wait;
- if (cwait != ASYNC_CLOSING_WAIT_NONE)
- cwait = jiffies_to_msecs(cwait) / 10;
- ss->type = PORT_16550A;
- ss->line = port->minor;
- ss->port = port->port_number;
- ss->xmit_fifo_size = kfifo_size(&port->write_fifo);
ss->baud_base = tport->tp_tdev->td_is_3410 ? 921600 : 460800;
- ss->closing_wait = cwait;
- return 0;
-}
-
-
-static int ti_set_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct ti_port *tport = usb_get_serial_port_data(port);
- unsigned cwait;
-
- cwait = ss->closing_wait;
- if (cwait != ASYNC_CLOSING_WAIT_NONE)
- cwait = msecs_to_jiffies(10 * ss->closing_wait);
-
- tport->tp_port->port.closing_wait = cwait;
-
- return 0;
}
@@ -1501,34 +1458,28 @@ static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
return status;
}
-
-static int ti_command_out_sync(struct ti_device *tdev, __u8 command,
- __u16 moduleid, __u16 value, __u8 *data, int size)
+static int ti_command_out_sync(struct usb_device *udev, u8 command,
+ u16 moduleid, u16 value, void *data, int size)
{
int status;
- status = usb_control_msg(tdev->td_serial->dev,
- usb_sndctrlpipe(tdev->td_serial->dev, 0), command,
- (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
- value, moduleid, data, size, 1000);
-
+ status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), command,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+ value, moduleid, data, size, 1000);
if (status < 0)
return status;
return 0;
}
-
-static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
- __u16 moduleid, __u16 value, __u8 *data, int size)
+static int ti_command_in_sync(struct usb_device *udev, u8 command,
+ u16 moduleid, u16 value, void *data, int size)
{
int status;
- status = usb_control_msg(tdev->td_serial->dev,
- usb_rcvctrlpipe(tdev->td_serial->dev, 0), command,
- (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN),
- value, moduleid, data, size, 1000);
-
+ status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), command,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ value, moduleid, data, size, 1000);
if (status == size)
status = 0;
else if (status >= 0)
@@ -1537,6 +1488,21 @@ static int ti_command_in_sync(struct ti_device *tdev, __u8 command,
return status;
}
+static int ti_port_cmd_out(struct usb_serial_port *port, u8 command,
+ u16 value, void *data, int size)
+{
+ return ti_command_out_sync(port->serial->dev, command,
+ TI_UART1_PORT + port->port_number,
+ value, data, size);
+}
+
+static int ti_port_cmd_in(struct usb_serial_port *port, u8 command,
+ u16 value, void *data, int size)
+{
+ return ti_command_in_sync(port->serial->dev, command,
+ TI_UART1_PORT + port->port_number,
+ value, data, size);
+}
static int ti_write_byte(struct usb_serial_port *port,
struct ti_device *tdev, unsigned long addr,
@@ -1562,9 +1528,8 @@ static int ti_write_byte(struct usb_serial_port *port,
data->bData[0] = mask;
data->bData[1] = byte;
- status = ti_command_out_sync(tdev, TI_WRITE_DATA, TI_RAM_PORT, 0,
- (__u8 *)data, size);
-
+ status = ti_command_out_sync(port->serial->dev, TI_WRITE_DATA,
+ TI_RAM_PORT, 0, data, size);
if (status < 0)
dev_err(&port->dev, "%s - failed, %d\n", __func__, status);
diff --git a/drivers/usb/serial/upd78f0730.c b/drivers/usb/serial/upd78f0730.c
index 26d7b003b7e3..63d4a784ae45 100644
--- a/drivers/usb/serial/upd78f0730.c
+++ b/drivers/usb/serial/upd78f0730.c
@@ -182,7 +182,6 @@ static void upd78f0730_port_remove(struct usb_serial_port *port)
static int upd78f0730_tiocmget(struct tty_struct *tty)
{
- struct device *dev = tty->dev;
struct upd78f0730_port_private *private;
struct usb_serial_port *port = tty->driver_data;
int signals;
@@ -197,7 +196,7 @@ static int upd78f0730_tiocmget(struct tty_struct *tty)
res = ((signals & UPD78F0730_DTR) ? TIOCM_DTR : 0) |
((signals & UPD78F0730_RTS) ? TIOCM_RTS : 0);
- dev_dbg(dev, "%s - res = %x\n", __func__, res);
+ dev_dbg(&port->dev, "%s - res = %x\n", __func__, res);
return res;
}
@@ -205,10 +204,10 @@ static int upd78f0730_tiocmget(struct tty_struct *tty)
static int upd78f0730_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
- struct device *dev = tty->dev;
struct usb_serial_port *port = tty->driver_data;
struct upd78f0730_port_private *private;
struct upd78f0730_set_dtr_rts request;
+ struct device *dev = &port->dev;
int res;
private = usb_get_serial_port_data(port);
@@ -241,10 +240,10 @@ static int upd78f0730_tiocmset(struct tty_struct *tty,
static void upd78f0730_break_ctl(struct tty_struct *tty, int break_state)
{
- struct device *dev = tty->dev;
struct upd78f0730_port_private *private;
struct usb_serial_port *port = tty->driver_data;
struct upd78f0730_set_dtr_rts request;
+ struct device *dev = &port->dev;
private = usb_get_serial_port_data(port);
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 27e3bb58c872..98b33b1b5357 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -121,6 +121,44 @@ static void release_minors(struct usb_serial *serial)
serial->minors_reserved = 0;
}
+int usb_serial_claim_interface(struct usb_serial *serial, struct usb_interface *intf)
+{
+ struct usb_driver *driver = serial->type->usb_driver;
+ int ret;
+
+ if (serial->sibling)
+ return -EBUSY;
+
+ ret = usb_driver_claim_interface(driver, intf, serial);
+ if (ret) {
+ dev_err(&serial->interface->dev,
+ "failed to claim sibling interface: %d\n", ret);
+ return ret;
+ }
+
+ serial->sibling = intf;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usb_serial_claim_interface);
+
+static void release_sibling(struct usb_serial *serial, struct usb_interface *intf)
+{
+ struct usb_driver *driver = serial->type->usb_driver;
+ struct usb_interface *sibling;
+
+ if (!serial->sibling)
+ return;
+
+ if (intf == serial->sibling)
+ sibling = serial->interface;
+ else
+ sibling = serial->sibling;
+
+ usb_set_intfdata(sibling, NULL);
+ usb_driver_release_interface(driver, sibling);
+}
+
static void destroy_serial(struct kref *kref)
{
struct usb_serial *serial;
@@ -243,7 +281,7 @@ static int serial_open(struct tty_struct *tty, struct file *filp)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
return tty_port_open(&port->port, tty, filp);
}
@@ -272,7 +310,7 @@ static void serial_hangup(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
tty_port_hangup(&port->port);
}
@@ -281,7 +319,7 @@ static void serial_close(struct tty_struct *tty, struct file *filp)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
tty_port_close(&port->port, tty, filp);
}
@@ -301,7 +339,7 @@ static void serial_cleanup(struct tty_struct *tty)
struct usb_serial *serial;
struct module *owner;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
/* The console is magical. Do not hang up the console hardware
* or there will be tears.
@@ -329,7 +367,7 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf,
if (port->serial->dev->state == USB_STATE_NOTATTACHED)
goto exit;
- dev_dbg(tty->dev, "%s - %d byte(s)\n", __func__, count);
+ dev_dbg(&port->dev, "%s - %d byte(s)\n", __func__, count);
retval = port->serial->type->write(tty, port, buf, count);
if (retval < 0)
@@ -342,7 +380,7 @@ static int serial_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
return port->serial->type->write_room(tty);
}
@@ -352,7 +390,7 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (serial->disconnected)
return 0;
@@ -365,7 +403,7 @@ static void serial_wait_until_sent(struct tty_struct *tty, int timeout)
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (!port->serial->type->wait_until_sent)
return;
@@ -380,7 +418,7 @@ static void serial_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->throttle)
port->serial->type->throttle(tty);
@@ -390,7 +428,7 @@ static void serial_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->unthrottle)
port->serial->type->unthrottle(tty);
@@ -399,19 +437,62 @@ static void serial_unthrottle(struct tty_struct *tty)
static int serial_get_serial(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
+ struct tty_port *tport = &port->port;
+ unsigned int close_delay, closing_wait;
+
+ mutex_lock(&tport->mutex);
+
+ close_delay = jiffies_to_msecs(tport->close_delay) / 10;
+ closing_wait = tport->closing_wait;
+ if (closing_wait != ASYNC_CLOSING_WAIT_NONE)
+ closing_wait = jiffies_to_msecs(closing_wait) / 10;
+
+ ss->line = port->minor;
+ ss->close_delay = close_delay;
+ ss->closing_wait = closing_wait;
if (port->serial->type->get_serial)
- return port->serial->type->get_serial(tty, ss);
- return -ENOTTY;
+ port->serial->type->get_serial(tty, ss);
+
+ mutex_unlock(&tport->mutex);
+
+ return 0;
}
static int serial_set_serial(struct tty_struct *tty, struct serial_struct *ss)
{
struct usb_serial_port *port = tty->driver_data;
+ struct tty_port *tport = &port->port;
+ unsigned int close_delay, closing_wait;
+ int ret = 0;
+
+ close_delay = msecs_to_jiffies(ss->close_delay * 10);
+ closing_wait = ss->closing_wait;
+ if (closing_wait != ASYNC_CLOSING_WAIT_NONE)
+ closing_wait = msecs_to_jiffies(closing_wait * 10);
+
+ mutex_lock(&tport->mutex);
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ if (close_delay != tport->close_delay ||
+ closing_wait != tport->closing_wait) {
+ ret = -EPERM;
+ goto out_unlock;
+ }
+ }
- if (port->serial->type->set_serial)
- return port->serial->type->set_serial(tty, ss);
- return -ENOTTY;
+ if (port->serial->type->set_serial) {
+ ret = port->serial->type->set_serial(tty, ss);
+ if (ret)
+ goto out_unlock;
+ }
+
+ tport->close_delay = close_delay;
+ tport->closing_wait = closing_wait;
+out_unlock:
+ mutex_unlock(&tport->mutex);
+
+ return ret;
}
static int serial_ioctl(struct tty_struct *tty,
@@ -420,7 +501,7 @@ static int serial_ioctl(struct tty_struct *tty,
struct usb_serial_port *port = tty->driver_data;
int retval = -ENOIOCTLCMD;
- dev_dbg(tty->dev, "%s - cmd 0x%04x\n", __func__, cmd);
+ dev_dbg(&port->dev, "%s - cmd 0x%04x\n", __func__, cmd);
switch (cmd) {
case TIOCMIWAIT:
@@ -439,7 +520,7 @@ static void serial_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->set_termios)
port->serial->type->set_termios(tty, port, old);
@@ -451,7 +532,7 @@ static int serial_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->break_ctl)
port->serial->type->break_ctl(tty, break_state);
@@ -498,11 +579,11 @@ static int serial_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->tiocmget)
return port->serial->type->tiocmget(tty);
- return -EINVAL;
+ return -ENOTTY;
}
static int serial_tiocmset(struct tty_struct *tty,
@@ -510,11 +591,11 @@ static int serial_tiocmset(struct tty_struct *tty,
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->tiocmset)
return port->serial->type->tiocmset(tty, set, clear);
- return -EINVAL;
+ return -ENOTTY;
}
static int serial_get_icount(struct tty_struct *tty,
@@ -522,11 +603,11 @@ static int serial_get_icount(struct tty_struct *tty,
{
struct usb_serial_port *port = tty->driver_data;
- dev_dbg(tty->dev, "%s\n", __func__);
+ dev_dbg(&port->dev, "%s\n", __func__);
if (port->serial->type->get_icount)
return port->serial->type->get_icount(tty, icount);
- return -EINVAL;
+ return -ENOTTY;
}
/*
@@ -711,36 +792,48 @@ static const struct tty_port_operations serial_port_ops = {
.shutdown = serial_port_shutdown,
};
-static void find_endpoints(struct usb_serial *serial,
- struct usb_serial_endpoints *epds)
+static void store_endpoint(struct usb_serial *serial,
+ struct usb_serial_endpoints *epds,
+ struct usb_endpoint_descriptor *epd)
{
struct device *dev = &serial->interface->dev;
+ u8 addr = epd->bEndpointAddress;
+
+ if (usb_endpoint_is_bulk_in(epd)) {
+ if (epds->num_bulk_in == ARRAY_SIZE(epds->bulk_in))
+ return;
+ dev_dbg(dev, "found bulk in endpoint %02x\n", addr);
+ epds->bulk_in[epds->num_bulk_in++] = epd;
+ } else if (usb_endpoint_is_bulk_out(epd)) {
+ if (epds->num_bulk_out == ARRAY_SIZE(epds->bulk_out))
+ return;
+ dev_dbg(dev, "found bulk out endpoint %02x\n", addr);
+ epds->bulk_out[epds->num_bulk_out++] = epd;
+ } else if (usb_endpoint_is_int_in(epd)) {
+ if (epds->num_interrupt_in == ARRAY_SIZE(epds->interrupt_in))
+ return;
+ dev_dbg(dev, "found interrupt in endpoint %02x\n", addr);
+ epds->interrupt_in[epds->num_interrupt_in++] = epd;
+ } else if (usb_endpoint_is_int_out(epd)) {
+ if (epds->num_interrupt_out == ARRAY_SIZE(epds->interrupt_out))
+ return;
+ dev_dbg(dev, "found interrupt out endpoint %02x\n", addr);
+ epds->interrupt_out[epds->num_interrupt_out++] = epd;
+ }
+}
+
+static void find_endpoints(struct usb_serial *serial,
+ struct usb_serial_endpoints *epds,
+ struct usb_interface *intf)
+{
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor *epd;
unsigned int i;
- BUILD_BUG_ON(ARRAY_SIZE(epds->bulk_in) < USB_MAXENDPOINTS / 2);
- BUILD_BUG_ON(ARRAY_SIZE(epds->bulk_out) < USB_MAXENDPOINTS / 2);
- BUILD_BUG_ON(ARRAY_SIZE(epds->interrupt_in) < USB_MAXENDPOINTS / 2);
- BUILD_BUG_ON(ARRAY_SIZE(epds->interrupt_out) < USB_MAXENDPOINTS / 2);
-
- iface_desc = serial->interface->cur_altsetting;
+ iface_desc = intf->cur_altsetting;
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
epd = &iface_desc->endpoint[i].desc;
-
- if (usb_endpoint_is_bulk_in(epd)) {
- dev_dbg(dev, "found bulk in on endpoint %u\n", i);
- epds->bulk_in[epds->num_bulk_in++] = epd;
- } else if (usb_endpoint_is_bulk_out(epd)) {
- dev_dbg(dev, "found bulk out on endpoint %u\n", i);
- epds->bulk_out[epds->num_bulk_out++] = epd;
- } else if (usb_endpoint_is_int_in(epd)) {
- dev_dbg(dev, "found interrupt in on endpoint %u\n", i);
- epds->interrupt_in[epds->num_interrupt_in++] = epd;
- } else if (usb_endpoint_is_int_out(epd)) {
- dev_dbg(dev, "found interrupt out on endpoint %u\n", i);
- epds->interrupt_out[epds->num_interrupt_out++] = epd;
- }
+ store_endpoint(serial, epds, epd);
}
}
@@ -906,7 +999,7 @@ static int usb_serial_probe(struct usb_interface *interface,
if (retval) {
dev_dbg(ddev, "sub driver rejected device\n");
- goto err_put_serial;
+ goto err_release_sibling;
}
}
@@ -914,10 +1007,12 @@ static int usb_serial_probe(struct usb_interface *interface,
epds = kzalloc(sizeof(*epds), GFP_KERNEL);
if (!epds) {
retval = -ENOMEM;
- goto err_put_serial;
+ goto err_release_sibling;
}
- find_endpoints(serial, epds);
+ find_endpoints(serial, epds, interface);
+ if (serial->sibling)
+ find_endpoints(serial, epds, serial->sibling);
if (epds->num_bulk_in < type->num_bulk_in ||
epds->num_bulk_out < type->num_bulk_out ||
@@ -1065,7 +1160,8 @@ exit:
err_free_epds:
kfree(epds);
-err_put_serial:
+err_release_sibling:
+ release_sibling(serial, interface);
usb_serial_put(serial);
err_put_module:
module_put(type->driver.owner);
@@ -1081,6 +1177,10 @@ static void usb_serial_disconnect(struct usb_interface *interface)
struct usb_serial_port *port;
struct tty_struct *tty;
+ /* sibling interface is cleaning up */
+ if (!serial)
+ return;
+
usb_serial_console_disconnect(serial);
mutex_lock(&serial->disc_mutex);
@@ -1104,6 +1204,8 @@ static void usb_serial_disconnect(struct usb_interface *interface)
if (serial->type->disconnect)
serial->type->disconnect(serial);
+ release_sibling(serial, interface);
+
/* let the last holder of this object cause it to be cleaned up */
usb_serial_put(serial);
dev_info(dev, "device disconnected\n");
@@ -1112,9 +1214,11 @@ static void usb_serial_disconnect(struct usb_interface *interface)
int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_serial *serial = usb_get_intfdata(intf);
- int i, r = 0;
+ int i, r;
- serial->suspending = 1;
+ /* suspend when called for first sibling interface */
+ if (serial->suspend_count++)
+ return 0;
/*
* serial->type->suspend() MUST return 0 in system sleep context,
@@ -1124,15 +1228,15 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message)
if (serial->type->suspend) {
r = serial->type->suspend(serial, message);
if (r < 0) {
- serial->suspending = 0;
- goto err_out;
+ serial->suspend_count--;
+ return r;
}
}
for (i = 0; i < serial->num_ports; ++i)
usb_serial_port_poison_urbs(serial->port[i]);
-err_out:
- return r;
+
+ return 0;
}
EXPORT_SYMBOL(usb_serial_suspend);
@@ -1149,9 +1253,12 @@ int usb_serial_resume(struct usb_interface *intf)
struct usb_serial *serial = usb_get_intfdata(intf);
int rv;
+ /* resume when called for last sibling interface */
+ if (--serial->suspend_count)
+ return 0;
+
usb_serial_unpoison_port_urbs(serial);
- serial->suspending = 0;
if (serial->type->resume)
rv = serial->type->resume(serial);
else
@@ -1166,9 +1273,12 @@ static int usb_serial_reset_resume(struct usb_interface *intf)
struct usb_serial *serial = usb_get_intfdata(intf);
int rv;
+ /* resume when called for last sibling interface */
+ if (--serial->suspend_count)
+ return 0;
+
usb_serial_unpoison_port_urbs(serial);
- serial->suspending = 0;
if (serial->type->reset_resume) {
rv = serial->type->reset_resume(serial);
} else {
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index 79dafd98e0a1..b5331d03092f 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -15,10 +15,6 @@ extern int usb_wwan_write_room(struct tty_struct *tty);
extern int usb_wwan_tiocmget(struct tty_struct *tty);
extern int usb_wwan_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear);
-extern int usb_wwan_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss);
-extern int usb_wwan_set_serial_info(struct tty_struct *tty,
- struct serial_struct *ss);
extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
extern int usb_wwan_chars_in_buffer(struct tty_struct *tty);
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 46d46a4f99c9..3eb72c59ede6 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -132,51 +132,6 @@ int usb_wwan_tiocmset(struct tty_struct *tty,
}
EXPORT_SYMBOL(usb_wwan_tiocmset);
-int usb_wwan_get_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
-
- ss->line = port->minor;
- ss->port = port->port_number;
- ss->baud_base = tty_get_baud_rate(port->port.tty);
- ss->close_delay = port->port.close_delay / 10;
- ss->closing_wait = port->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
- ASYNC_CLOSING_WAIT_NONE :
- port->port.closing_wait / 10;
- return 0;
-}
-EXPORT_SYMBOL(usb_wwan_get_serial_info);
-
-int usb_wwan_set_serial_info(struct tty_struct *tty,
- struct serial_struct *ss)
-{
- struct usb_serial_port *port = tty->driver_data;
- unsigned int closing_wait, close_delay;
- int retval = 0;
-
- close_delay = ss->close_delay * 10;
- closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
- ASYNC_CLOSING_WAIT_NONE : ss->closing_wait * 10;
-
- mutex_lock(&port->port.mutex);
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((close_delay != port->port.close_delay) ||
- (closing_wait != port->port.closing_wait))
- retval = -EPERM;
- else
- retval = -EOPNOTSUPP;
- } else {
- port->port.close_delay = close_delay;
- port->port.closing_wait = closing_wait;
- }
-
- mutex_unlock(&port->port.mutex);
- return retval;
-}
-EXPORT_SYMBOL(usb_wwan_set_serial_info);
-
int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count)
{
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index ccfd5ed652cd..5116ed9db3eb 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -83,7 +83,7 @@ static void whiteheat_port_remove(struct usb_serial_port *port);
static int whiteheat_open(struct tty_struct *tty,
struct usb_serial_port *port);
static void whiteheat_close(struct usb_serial_port *port);
-static int whiteheat_get_serial(struct tty_struct *tty,
+static void whiteheat_get_serial(struct tty_struct *tty,
struct serial_struct *ss);
static void whiteheat_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
@@ -170,7 +170,6 @@ static int firm_report_tx_done(struct usb_serial_port *port);
#define COMMAND_PORT 4
#define COMMAND_TIMEOUT (2*HZ) /* 2 second timeout for a command */
#define COMMAND_TIMEOUT_MS 2000
-#define CLOSING_DELAY (30 * HZ)
/*****************************************************************************
@@ -440,21 +439,9 @@ static int whiteheat_tiocmset(struct tty_struct *tty,
}
-static int whiteheat_get_serial(struct tty_struct *tty,
- struct serial_struct *ss)
+static void whiteheat_get_serial(struct tty_struct *tty, struct serial_struct *ss)
{
- struct usb_serial_port *port = tty->driver_data;
-
- ss->type = PORT_16654;
- ss->line = port->minor;
- ss->port = port->port_number;
- ss->xmit_fifo_size = kfifo_size(&port->write_fifo);
- ss->custom_divisor = 0;
ss->baud_base = 460800;
- ss->close_delay = CLOSING_DELAY;
- ss->closing_wait = CLOSING_DELAY;
-
- return 0;
}
diff --git a/drivers/usb/serial/xr_serial.c b/drivers/usb/serial/xr_serial.c
index 0ca04906da4b..6853cd56d8dc 100644
--- a/drivers/usb/serial/xr_serial.c
+++ b/drivers/usb/serial/xr_serial.c
@@ -3,6 +3,7 @@
* MaxLinear/Exar USB to Serial driver
*
* Copyright (c) 2020 Manivannan Sadhasivam <mani@kernel.org>
+ * Copyright (c) 2021 Johan Hovold <johan@kernel.org>
*
* Based on the initial driver written by Patong Yang:
*
@@ -16,6 +17,7 @@
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/usb.h>
+#include <linux/usb/cdc.h>
#include <linux/usb/serial.h>
struct xr_txrx_clk_mask {
@@ -28,10 +30,12 @@ struct xr_txrx_clk_mask {
#define XR21V141X_MIN_SPEED 46U
#define XR21V141X_MAX_SPEED XR_INT_OSC_HZ
-/* USB Requests */
-#define XR21V141X_SET_REQ 0
-#define XR21V141X_GET_REQ 1
+/* XR21V141X register blocks */
+#define XR21V141X_UART_REG_BLOCK 0
+#define XR21V141X_UM_REG_BLOCK 4
+#define XR21V141X_UART_CUSTOM_BLOCK 0x66
+/* XR21V141X UART registers */
#define XR21V141X_CLOCK_DIVISOR_0 0x04
#define XR21V141X_CLOCK_DIVISOR_1 0x05
#define XR21V141X_CLOCK_DIVISOR_2 0x06
@@ -39,13 +43,9 @@ struct xr_txrx_clk_mask {
#define XR21V141X_TX_CLOCK_MASK_1 0x08
#define XR21V141X_RX_CLOCK_MASK_0 0x09
#define XR21V141X_RX_CLOCK_MASK_1 0x0a
+#define XR21V141X_REG_FORMAT 0x0b
-/* XR21V141X register blocks */
-#define XR21V141X_UART_REG_BLOCK 0
-#define XR21V141X_UM_REG_BLOCK 4
-#define XR21V141X_UART_CUSTOM_BLOCK 0x66
-
-/* XR21V141X UART Manager Registers */
+/* XR21V141X UART Manager registers */
#define XR21V141X_UM_FIFO_ENABLE_REG 0x10
#define XR21V141X_UM_ENABLE_TX_FIFO 0x01
#define XR21V141X_UM_ENABLE_RX_FIFO 0x02
@@ -53,72 +53,203 @@ struct xr_txrx_clk_mask {
#define XR21V141X_UM_RX_FIFO_RESET 0x18
#define XR21V141X_UM_TX_FIFO_RESET 0x1c
-#define XR21V141X_UART_ENABLE_TX 0x1
-#define XR21V141X_UART_ENABLE_RX 0x2
-
-#define XR21V141X_UART_MODE_RI BIT(0)
-#define XR21V141X_UART_MODE_CD BIT(1)
-#define XR21V141X_UART_MODE_DSR BIT(2)
-#define XR21V141X_UART_MODE_DTR BIT(3)
-#define XR21V141X_UART_MODE_CTS BIT(4)
-#define XR21V141X_UART_MODE_RTS BIT(5)
-
-#define XR21V141X_UART_BREAK_ON 0xff
-#define XR21V141X_UART_BREAK_OFF 0
-
-#define XR21V141X_UART_DATA_MASK GENMASK(3, 0)
-#define XR21V141X_UART_DATA_7 0x7
-#define XR21V141X_UART_DATA_8 0x8
-
-#define XR21V141X_UART_PARITY_MASK GENMASK(6, 4)
-#define XR21V141X_UART_PARITY_SHIFT 4
-#define XR21V141X_UART_PARITY_NONE (0x0 << XR21V141X_UART_PARITY_SHIFT)
-#define XR21V141X_UART_PARITY_ODD (0x1 << XR21V141X_UART_PARITY_SHIFT)
-#define XR21V141X_UART_PARITY_EVEN (0x2 << XR21V141X_UART_PARITY_SHIFT)
-#define XR21V141X_UART_PARITY_MARK (0x3 << XR21V141X_UART_PARITY_SHIFT)
-#define XR21V141X_UART_PARITY_SPACE (0x4 << XR21V141X_UART_PARITY_SHIFT)
-
-#define XR21V141X_UART_STOP_MASK BIT(7)
-#define XR21V141X_UART_STOP_SHIFT 7
-#define XR21V141X_UART_STOP_1 (0x0 << XR21V141X_UART_STOP_SHIFT)
-#define XR21V141X_UART_STOP_2 (0x1 << XR21V141X_UART_STOP_SHIFT)
-
-#define XR21V141X_UART_FLOW_MODE_NONE 0x0
-#define XR21V141X_UART_FLOW_MODE_HW 0x1
-#define XR21V141X_UART_FLOW_MODE_SW 0x2
-
-#define XR21V141X_UART_MODE_GPIO_MASK GENMASK(2, 0)
-#define XR21V141X_UART_MODE_RTS_CTS 0x1
-#define XR21V141X_UART_MODE_DTR_DSR 0x2
-#define XR21V141X_UART_MODE_RS485 0x3
-#define XR21V141X_UART_MODE_RS485_ADDR 0x4
-
-#define XR21V141X_REG_ENABLE 0x03
-#define XR21V141X_REG_FORMAT 0x0b
-#define XR21V141X_REG_FLOW_CTRL 0x0c
-#define XR21V141X_REG_XON_CHAR 0x10
-#define XR21V141X_REG_XOFF_CHAR 0x11
-#define XR21V141X_REG_LOOPBACK 0x12
-#define XR21V141X_REG_TX_BREAK 0x14
-#define XR21V141X_REG_RS845_DELAY 0x15
-#define XR21V141X_REG_GPIO_MODE 0x1a
-#define XR21V141X_REG_GPIO_DIR 0x1b
-#define XR21V141X_REG_GPIO_INT_MASK 0x1c
-#define XR21V141X_REG_GPIO_SET 0x1d
-#define XR21V141X_REG_GPIO_CLR 0x1e
-#define XR21V141X_REG_GPIO_STATUS 0x1f
-
-static int xr_set_reg(struct usb_serial_port *port, u8 block, u8 reg, u8 val)
+#define XR_UART_ENABLE_TX 0x1
+#define XR_UART_ENABLE_RX 0x2
+
+#define XR_GPIO_RI BIT(0)
+#define XR_GPIO_CD BIT(1)
+#define XR_GPIO_DSR BIT(2)
+#define XR_GPIO_DTR BIT(3)
+#define XR_GPIO_CTS BIT(4)
+#define XR_GPIO_RTS BIT(5)
+#define XR_GPIO_CLK BIT(6)
+#define XR_GPIO_XEN BIT(7)
+#define XR_GPIO_TXT BIT(8)
+#define XR_GPIO_RXT BIT(9)
+
+#define XR_UART_DATA_MASK GENMASK(3, 0)
+#define XR_UART_DATA_7 0x7
+#define XR_UART_DATA_8 0x8
+
+#define XR_UART_PARITY_MASK GENMASK(6, 4)
+#define XR_UART_PARITY_SHIFT 4
+#define XR_UART_PARITY_NONE (0x0 << XR_UART_PARITY_SHIFT)
+#define XR_UART_PARITY_ODD (0x1 << XR_UART_PARITY_SHIFT)
+#define XR_UART_PARITY_EVEN (0x2 << XR_UART_PARITY_SHIFT)
+#define XR_UART_PARITY_MARK (0x3 << XR_UART_PARITY_SHIFT)
+#define XR_UART_PARITY_SPACE (0x4 << XR_UART_PARITY_SHIFT)
+
+#define XR_UART_STOP_MASK BIT(7)
+#define XR_UART_STOP_SHIFT 7
+#define XR_UART_STOP_1 (0x0 << XR_UART_STOP_SHIFT)
+#define XR_UART_STOP_2 (0x1 << XR_UART_STOP_SHIFT)
+
+#define XR_UART_FLOW_MODE_NONE 0x0
+#define XR_UART_FLOW_MODE_HW 0x1
+#define XR_UART_FLOW_MODE_SW 0x2
+
+#define XR_GPIO_MODE_SEL_MASK GENMASK(2, 0)
+#define XR_GPIO_MODE_SEL_RTS_CTS 0x1
+#define XR_GPIO_MODE_SEL_DTR_DSR 0x2
+#define XR_GPIO_MODE_SEL_RS485 0x3
+#define XR_GPIO_MODE_SEL_RS485_ADDR 0x4
+#define XR_GPIO_MODE_TX_TOGGLE 0x100
+#define XR_GPIO_MODE_RX_TOGGLE 0x200
+
+#define XR_FIFO_RESET 0x1
+
+#define XR_CUSTOM_DRIVER_ACTIVE 0x1
+
+static int xr21v141x_uart_enable(struct usb_serial_port *port);
+static int xr21v141x_uart_disable(struct usb_serial_port *port);
+static int xr21v141x_fifo_reset(struct usb_serial_port *port);
+static void xr21v141x_set_line_settings(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios);
+
+struct xr_type {
+ int reg_width;
+ u8 reg_recipient;
+ u8 set_reg;
+ u8 get_reg;
+
+ u16 uart_enable;
+ u16 flow_control;
+ u16 xon_char;
+ u16 xoff_char;
+ u16 tx_break;
+ u16 gpio_mode;
+ u16 gpio_direction;
+ u16 gpio_set;
+ u16 gpio_clear;
+ u16 gpio_status;
+ u16 tx_fifo_reset;
+ u16 rx_fifo_reset;
+ u16 custom_driver;
+
+ bool have_5_6_bit_mode;
+ bool have_xmit_toggle;
+
+ int (*enable)(struct usb_serial_port *port);
+ int (*disable)(struct usb_serial_port *port);
+ int (*fifo_reset)(struct usb_serial_port *port);
+ void (*set_line_settings)(struct tty_struct *tty,
+ struct usb_serial_port *port,
+ struct ktermios *old_termios);
+};
+
+enum xr_type_id {
+ XR21V141X,
+ XR21B142X,
+ XR21B1411,
+ XR2280X,
+ XR_TYPE_COUNT,
+};
+
+static const struct xr_type xr_types[] = {
+ [XR21V141X] = {
+ .reg_width = 8,
+ .reg_recipient = USB_RECIP_DEVICE,
+ .set_reg = 0x00,
+ .get_reg = 0x01,
+
+ .uart_enable = 0x03,
+ .flow_control = 0x0c,
+ .xon_char = 0x10,
+ .xoff_char = 0x11,
+ .tx_break = 0x14,
+ .gpio_mode = 0x1a,
+ .gpio_direction = 0x1b,
+ .gpio_set = 0x1d,
+ .gpio_clear = 0x1e,
+ .gpio_status = 0x1f,
+
+ .enable = xr21v141x_uart_enable,
+ .disable = xr21v141x_uart_disable,
+ .fifo_reset = xr21v141x_fifo_reset,
+ .set_line_settings = xr21v141x_set_line_settings,
+ },
+ [XR21B142X] = {
+ .reg_width = 16,
+ .reg_recipient = USB_RECIP_INTERFACE,
+ .set_reg = 0x00,
+ .get_reg = 0x00,
+
+ .uart_enable = 0x00,
+ .flow_control = 0x06,
+ .xon_char = 0x07,
+ .xoff_char = 0x08,
+ .tx_break = 0x0a,
+ .gpio_mode = 0x0c,
+ .gpio_direction = 0x0d,
+ .gpio_set = 0x0e,
+ .gpio_clear = 0x0f,
+ .gpio_status = 0x10,
+ .tx_fifo_reset = 0x40,
+ .rx_fifo_reset = 0x43,
+ .custom_driver = 0x60,
+
+ .have_5_6_bit_mode = true,
+ .have_xmit_toggle = true,
+ },
+ [XR21B1411] = {
+ .reg_width = 12,
+ .reg_recipient = USB_RECIP_DEVICE,
+ .set_reg = 0x00,
+ .get_reg = 0x01,
+
+ .uart_enable = 0xc00,
+ .flow_control = 0xc06,
+ .xon_char = 0xc07,
+ .xoff_char = 0xc08,
+ .tx_break = 0xc0a,
+ .gpio_mode = 0xc0c,
+ .gpio_direction = 0xc0d,
+ .gpio_set = 0xc0e,
+ .gpio_clear = 0xc0f,
+ .gpio_status = 0xc10,
+ .tx_fifo_reset = 0xc80,
+ .rx_fifo_reset = 0xcc0,
+ .custom_driver = 0x20d,
+ },
+ [XR2280X] = {
+ .reg_width = 16,
+ .reg_recipient = USB_RECIP_DEVICE,
+ .set_reg = 0x05,
+ .get_reg = 0x05,
+
+ .uart_enable = 0x40,
+ .flow_control = 0x46,
+ .xon_char = 0x47,
+ .xoff_char = 0x48,
+ .tx_break = 0x4a,
+ .gpio_mode = 0x4c,
+ .gpio_direction = 0x4d,
+ .gpio_set = 0x4e,
+ .gpio_clear = 0x4f,
+ .gpio_status = 0x50,
+ .tx_fifo_reset = 0x60,
+ .rx_fifo_reset = 0x63,
+ .custom_driver = 0x81,
+ },
+};
+
+struct xr_data {
+ const struct xr_type *type;
+ u8 channel; /* zero-based index or interface number */
+};
+
+static int xr_set_reg(struct usb_serial_port *port, u8 channel, u16 reg, u16 val)
{
+ struct xr_data *data = usb_get_serial_port_data(port);
+ const struct xr_type *type = data->type;
struct usb_serial *serial = port->serial;
int ret;
- ret = usb_control_msg(serial->dev,
- usb_sndctrlpipe(serial->dev, 0),
- XR21V141X_SET_REQ,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- val, reg | (block << 8), NULL, 0,
- USB_CTRL_SET_TIMEOUT);
+ ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ type->set_reg,
+ USB_DIR_OUT | USB_TYPE_VENDOR | type->reg_recipient,
+ val, (channel << 8) | reg, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
if (ret < 0) {
dev_err(&port->dev, "Failed to set reg 0x%02x: %d\n", reg, ret);
return ret;
@@ -127,24 +258,33 @@ static int xr_set_reg(struct usb_serial_port *port, u8 block, u8 reg, u8 val)
return 0;
}
-static int xr_get_reg(struct usb_serial_port *port, u8 block, u8 reg, u8 *val)
+static int xr_get_reg(struct usb_serial_port *port, u8 channel, u16 reg, u16 *val)
{
+ struct xr_data *data = usb_get_serial_port_data(port);
+ const struct xr_type *type = data->type;
struct usb_serial *serial = port->serial;
u8 *dmabuf;
- int ret;
+ int ret, len;
+
+ if (type->reg_width == 8)
+ len = 1;
+ else
+ len = 2;
- dmabuf = kmalloc(1, GFP_KERNEL);
+ dmabuf = kmalloc(len, GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
- ret = usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0),
- XR21V141X_GET_REQ,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, reg | (block << 8), dmabuf, 1,
- USB_CTRL_GET_TIMEOUT);
- if (ret == 1) {
- *val = *dmabuf;
+ ret = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ type->get_reg,
+ USB_DIR_IN | USB_TYPE_VENDOR | type->reg_recipient,
+ 0, (channel << 8) | reg, dmabuf, len,
+ USB_CTRL_GET_TIMEOUT);
+ if (ret == len) {
+ if (len == 2)
+ *val = le16_to_cpup((__le16 *)dmabuf);
+ else
+ *val = *dmabuf;
ret = 0;
} else {
dev_err(&port->dev, "Failed to get reg 0x%02x: %d\n", reg, ret);
@@ -157,21 +297,45 @@ static int xr_get_reg(struct usb_serial_port *port, u8 block, u8 reg, u8 *val)
return ret;
}
-static int xr_set_reg_uart(struct usb_serial_port *port, u8 reg, u8 val)
+static int xr_set_reg_uart(struct usb_serial_port *port, u16 reg, u16 val)
{
- return xr_set_reg(port, XR21V141X_UART_REG_BLOCK, reg, val);
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ return xr_set_reg(port, data->channel, reg, val);
}
-static int xr_get_reg_uart(struct usb_serial_port *port, u8 reg, u8 *val)
+static int xr_get_reg_uart(struct usb_serial_port *port, u16 reg, u16 *val)
{
- return xr_get_reg(port, XR21V141X_UART_REG_BLOCK, reg, val);
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ return xr_get_reg(port, data->channel, reg, val);
}
-static int xr_set_reg_um(struct usb_serial_port *port, u8 reg, u8 val)
+static int xr_set_reg_um(struct usb_serial_port *port, u8 reg_base, u8 val)
{
+ struct xr_data *data = usb_get_serial_port_data(port);
+ u8 reg;
+
+ reg = reg_base + data->channel;
+
return xr_set_reg(port, XR21V141X_UM_REG_BLOCK, reg, val);
}
+static int __xr_uart_enable(struct usb_serial_port *port)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ return xr_set_reg_uart(port, data->type->uart_enable,
+ XR_UART_ENABLE_TX | XR_UART_ENABLE_RX);
+}
+
+static int __xr_uart_disable(struct usb_serial_port *port)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ return xr_set_reg_uart(port, data->type->uart_enable, 0);
+}
+
/*
* According to datasheet, below is the recommended sequence for enabling UART
* module in XR21V141X:
@@ -180,7 +344,7 @@ static int xr_set_reg_um(struct usb_serial_port *port, u8 reg, u8 val)
* Enable Tx and Rx
* Enable Rx FIFO
*/
-static int xr_uart_enable(struct usb_serial_port *port)
+static int xr21v141x_uart_enable(struct usb_serial_port *port)
{
int ret;
@@ -189,25 +353,23 @@ static int xr_uart_enable(struct usb_serial_port *port)
if (ret)
return ret;
- ret = xr_set_reg_uart(port, XR21V141X_REG_ENABLE,
- XR21V141X_UART_ENABLE_TX | XR21V141X_UART_ENABLE_RX);
+ ret = __xr_uart_enable(port);
if (ret)
return ret;
ret = xr_set_reg_um(port, XR21V141X_UM_FIFO_ENABLE_REG,
XR21V141X_UM_ENABLE_TX_FIFO | XR21V141X_UM_ENABLE_RX_FIFO);
-
if (ret)
- xr_set_reg_uart(port, XR21V141X_REG_ENABLE, 0);
+ __xr_uart_disable(port);
return ret;
}
-static int xr_uart_disable(struct usb_serial_port *port)
+static int xr21v141x_uart_disable(struct usb_serial_port *port)
{
int ret;
- ret = xr_set_reg_uart(port, XR21V141X_REG_ENABLE, 0);
+ ret = __xr_uart_disable(port);
if (ret)
return ret;
@@ -216,13 +378,68 @@ static int xr_uart_disable(struct usb_serial_port *port)
return ret;
}
+static int xr_uart_enable(struct usb_serial_port *port)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ if (data->type->enable)
+ return data->type->enable(port);
+
+ return __xr_uart_enable(port);
+}
+
+static int xr_uart_disable(struct usb_serial_port *port)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ if (data->type->disable)
+ return data->type->disable(port);
+
+ return __xr_uart_disable(port);
+}
+
+static int xr21v141x_fifo_reset(struct usb_serial_port *port)
+{
+ int ret;
+
+ ret = xr_set_reg_um(port, XR21V141X_UM_TX_FIFO_RESET, XR_FIFO_RESET);
+ if (ret)
+ return ret;
+
+ ret = xr_set_reg_um(port, XR21V141X_UM_RX_FIFO_RESET, XR_FIFO_RESET);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int xr_fifo_reset(struct usb_serial_port *port)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+ int ret;
+
+ if (data->type->fifo_reset)
+ return data->type->fifo_reset(port);
+
+ ret = xr_set_reg_uart(port, data->type->tx_fifo_reset, XR_FIFO_RESET);
+ if (ret)
+ return ret;
+
+ ret = xr_set_reg_uart(port, data->type->rx_fifo_reset, XR_FIFO_RESET);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
static int xr_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
- u8 status;
+ struct xr_data *data = usb_get_serial_port_data(port);
+ u16 status;
int ret;
- ret = xr_get_reg_uart(port, XR21V141X_REG_GPIO_STATUS, &status);
+ ret = xr_get_reg_uart(port, data->type->gpio_status, &status);
if (ret)
return ret;
@@ -230,12 +447,12 @@ static int xr_tiocmget(struct tty_struct *tty)
* Modem control pins are active low, so reading '0' means it is active
* and '1' means not active.
*/
- ret = ((status & XR21V141X_UART_MODE_DTR) ? 0 : TIOCM_DTR) |
- ((status & XR21V141X_UART_MODE_RTS) ? 0 : TIOCM_RTS) |
- ((status & XR21V141X_UART_MODE_CTS) ? 0 : TIOCM_CTS) |
- ((status & XR21V141X_UART_MODE_DSR) ? 0 : TIOCM_DSR) |
- ((status & XR21V141X_UART_MODE_RI) ? 0 : TIOCM_RI) |
- ((status & XR21V141X_UART_MODE_CD) ? 0 : TIOCM_CD);
+ ret = ((status & XR_GPIO_DTR) ? 0 : TIOCM_DTR) |
+ ((status & XR_GPIO_RTS) ? 0 : TIOCM_RTS) |
+ ((status & XR_GPIO_CTS) ? 0 : TIOCM_CTS) |
+ ((status & XR_GPIO_DSR) ? 0 : TIOCM_DSR) |
+ ((status & XR_GPIO_RI) ? 0 : TIOCM_RI) |
+ ((status & XR_GPIO_CD) ? 0 : TIOCM_CD);
return ret;
}
@@ -243,26 +460,28 @@ static int xr_tiocmget(struct tty_struct *tty)
static int xr_tiocmset_port(struct usb_serial_port *port,
unsigned int set, unsigned int clear)
{
- u8 gpio_set = 0;
- u8 gpio_clr = 0;
+ struct xr_data *data = usb_get_serial_port_data(port);
+ const struct xr_type *type = data->type;
+ u16 gpio_set = 0;
+ u16 gpio_clr = 0;
int ret = 0;
/* Modem control pins are active low, so set & clr are swapped */
if (set & TIOCM_RTS)
- gpio_clr |= XR21V141X_UART_MODE_RTS;
+ gpio_clr |= XR_GPIO_RTS;
if (set & TIOCM_DTR)
- gpio_clr |= XR21V141X_UART_MODE_DTR;
+ gpio_clr |= XR_GPIO_DTR;
if (clear & TIOCM_RTS)
- gpio_set |= XR21V141X_UART_MODE_RTS;
+ gpio_set |= XR_GPIO_RTS;
if (clear & TIOCM_DTR)
- gpio_set |= XR21V141X_UART_MODE_DTR;
+ gpio_set |= XR_GPIO_DTR;
/* Writing '0' to gpio_{set/clr} bits has no effect, so no need to do */
if (gpio_clr)
- ret = xr_set_reg_uart(port, XR21V141X_REG_GPIO_CLR, gpio_clr);
+ ret = xr_set_reg_uart(port, type->gpio_clear, gpio_clr);
if (gpio_set)
- ret = xr_set_reg_uart(port, XR21V141X_REG_GPIO_SET, gpio_set);
+ ret = xr_set_reg_uart(port, type->gpio_set, gpio_set);
return ret;
}
@@ -286,16 +505,18 @@ static void xr_dtr_rts(struct usb_serial_port *port, int on)
static void xr_break_ctl(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
- u8 state;
+ struct xr_data *data = usb_get_serial_port_data(port);
+ const struct xr_type *type = data->type;
+ u16 state;
if (break_state == 0)
- state = XR21V141X_UART_BREAK_OFF;
+ state = 0;
else
- state = XR21V141X_UART_BREAK_ON;
+ state = GENMASK(type->reg_width - 1, 0);
+
+ dev_dbg(&port->dev, "Turning break %s\n", state == 0 ? "off" : "on");
- dev_dbg(&port->dev, "Turning break %s\n",
- state == XR21V141X_UART_BREAK_OFF ? "off" : "on");
- xr_set_reg_uart(port, XR21V141X_REG_TX_BREAK, state);
+ xr_set_reg_uart(port, type->tx_break, state);
}
/* Tx and Rx clock mask values obtained from section 3.3.4 of datasheet */
@@ -334,8 +555,7 @@ static const struct xr_txrx_clk_mask xr21v141x_txrx_clk_masks[] = {
{ 0xfff, 0xffe, 0xffd },
};
-static int xr_set_baudrate(struct tty_struct *tty,
- struct usb_serial_port *port)
+static int xr21v141x_set_baudrate(struct tty_struct *tty, struct usb_serial_port *port)
{
u32 divisor, baud, idx;
u16 tx_mask, rx_mask;
@@ -405,43 +625,47 @@ static void xr_set_flow_mode(struct tty_struct *tty,
struct usb_serial_port *port,
struct ktermios *old_termios)
{
- u8 flow, gpio_mode;
+ struct xr_data *data = usb_get_serial_port_data(port);
+ const struct xr_type *type = data->type;
+ u16 flow, gpio_mode;
int ret;
- ret = xr_get_reg_uart(port, XR21V141X_REG_GPIO_MODE, &gpio_mode);
+ ret = xr_get_reg_uart(port, type->gpio_mode, &gpio_mode);
if (ret)
return;
+ /*
+ * According to the datasheets, the UART needs to be disabled while
+ * writing to the FLOW_CONTROL register (XR21V141X), or any register
+ * but GPIO_SET, GPIO_CLEAR, TX_BREAK and ERROR_STATUS (XR21B142X).
+ */
+ xr_uart_disable(port);
+
/* Set GPIO mode for controlling the pins manually by default. */
- gpio_mode &= ~XR21V141X_UART_MODE_GPIO_MASK;
+ gpio_mode &= ~XR_GPIO_MODE_SEL_MASK;
if (C_CRTSCTS(tty) && C_BAUD(tty) != B0) {
dev_dbg(&port->dev, "Enabling hardware flow ctrl\n");
- gpio_mode |= XR21V141X_UART_MODE_RTS_CTS;
- flow = XR21V141X_UART_FLOW_MODE_HW;
+ gpio_mode |= XR_GPIO_MODE_SEL_RTS_CTS;
+ flow = XR_UART_FLOW_MODE_HW;
} else if (I_IXON(tty)) {
u8 start_char = START_CHAR(tty);
u8 stop_char = STOP_CHAR(tty);
dev_dbg(&port->dev, "Enabling sw flow ctrl\n");
- flow = XR21V141X_UART_FLOW_MODE_SW;
+ flow = XR_UART_FLOW_MODE_SW;
- xr_set_reg_uart(port, XR21V141X_REG_XON_CHAR, start_char);
- xr_set_reg_uart(port, XR21V141X_REG_XOFF_CHAR, stop_char);
+ xr_set_reg_uart(port, type->xon_char, start_char);
+ xr_set_reg_uart(port, type->xoff_char, stop_char);
} else {
dev_dbg(&port->dev, "Disabling flow ctrl\n");
- flow = XR21V141X_UART_FLOW_MODE_NONE;
+ flow = XR_UART_FLOW_MODE_NONE;
}
- /*
- * As per the datasheet, UART needs to be disabled while writing to
- * FLOW_CONTROL register.
- */
- xr_uart_disable(port);
- xr_set_reg_uart(port, XR21V141X_REG_FLOW_CTRL, flow);
- xr_uart_enable(port);
+ xr_set_reg_uart(port, type->flow_control, flow);
+ xr_set_reg_uart(port, type->gpio_mode, gpio_mode);
- xr_set_reg_uart(port, XR21V141X_REG_GPIO_MODE, gpio_mode);
+ xr_uart_enable(port);
if (C_BAUD(tty) == B0)
xr_dtr_rts(port, 0);
@@ -449,16 +673,15 @@ static void xr_set_flow_mode(struct tty_struct *tty,
xr_dtr_rts(port, 1);
}
-static void xr_set_termios(struct tty_struct *tty,
- struct usb_serial_port *port,
- struct ktermios *old_termios)
+static void xr21v141x_set_line_settings(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
{
struct ktermios *termios = &tty->termios;
u8 bits = 0;
int ret;
if (!old_termios || (tty->termios.c_ospeed != old_termios->c_ospeed))
- xr_set_baudrate(tty, port);
+ xr21v141x_set_baudrate(tty, port);
switch (C_CSIZE(tty)) {
case CS5:
@@ -468,61 +691,154 @@ static void xr_set_termios(struct tty_struct *tty,
if (old_termios)
termios->c_cflag |= old_termios->c_cflag & CSIZE;
else
- bits |= XR21V141X_UART_DATA_8;
+ termios->c_cflag |= CS8;
+
+ if (C_CSIZE(tty) == CS7)
+ bits |= XR_UART_DATA_7;
+ else
+ bits |= XR_UART_DATA_8;
break;
case CS7:
- bits |= XR21V141X_UART_DATA_7;
+ bits |= XR_UART_DATA_7;
break;
case CS8:
default:
- bits |= XR21V141X_UART_DATA_8;
+ bits |= XR_UART_DATA_8;
break;
}
if (C_PARENB(tty)) {
if (C_CMSPAR(tty)) {
if (C_PARODD(tty))
- bits |= XR21V141X_UART_PARITY_MARK;
+ bits |= XR_UART_PARITY_MARK;
else
- bits |= XR21V141X_UART_PARITY_SPACE;
+ bits |= XR_UART_PARITY_SPACE;
} else {
if (C_PARODD(tty))
- bits |= XR21V141X_UART_PARITY_ODD;
+ bits |= XR_UART_PARITY_ODD;
else
- bits |= XR21V141X_UART_PARITY_EVEN;
+ bits |= XR_UART_PARITY_EVEN;
}
}
if (C_CSTOPB(tty))
- bits |= XR21V141X_UART_STOP_2;
+ bits |= XR_UART_STOP_2;
else
- bits |= XR21V141X_UART_STOP_1;
+ bits |= XR_UART_STOP_1;
ret = xr_set_reg_uart(port, XR21V141X_REG_FORMAT, bits);
if (ret)
return;
+}
+
+static void xr_cdc_set_line_coding(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+ struct usb_host_interface *alt = port->serial->interface->cur_altsetting;
+ struct usb_device *udev = port->serial->dev;
+ struct usb_cdc_line_coding *lc;
+ int ret;
+
+ lc = kzalloc(sizeof(*lc), GFP_KERNEL);
+ if (!lc)
+ return;
+
+ if (tty->termios.c_ospeed)
+ lc->dwDTERate = cpu_to_le32(tty->termios.c_ospeed);
+ else if (old_termios)
+ lc->dwDTERate = cpu_to_le32(old_termios->c_ospeed);
+ else
+ lc->dwDTERate = cpu_to_le32(9600);
+
+ if (C_CSTOPB(tty))
+ lc->bCharFormat = USB_CDC_2_STOP_BITS;
+ else
+ lc->bCharFormat = USB_CDC_1_STOP_BITS;
+
+ if (C_PARENB(tty)) {
+ if (C_CMSPAR(tty)) {
+ if (C_PARODD(tty))
+ lc->bParityType = USB_CDC_MARK_PARITY;
+ else
+ lc->bParityType = USB_CDC_SPACE_PARITY;
+ } else {
+ if (C_PARODD(tty))
+ lc->bParityType = USB_CDC_ODD_PARITY;
+ else
+ lc->bParityType = USB_CDC_EVEN_PARITY;
+ }
+ } else {
+ lc->bParityType = USB_CDC_NO_PARITY;
+ }
+
+ if (!data->type->have_5_6_bit_mode &&
+ (C_CSIZE(tty) == CS5 || C_CSIZE(tty) == CS6)) {
+ tty->termios.c_cflag &= ~CSIZE;
+ if (old_termios)
+ tty->termios.c_cflag |= old_termios->c_cflag & CSIZE;
+ else
+ tty->termios.c_cflag |= CS8;
+ }
+
+ switch (C_CSIZE(tty)) {
+ case CS5:
+ lc->bDataBits = 5;
+ break;
+ case CS6:
+ lc->bDataBits = 6;
+ break;
+ case CS7:
+ lc->bDataBits = 7;
+ break;
+ case CS8:
+ default:
+ lc->bDataBits = 8;
+ break;
+ }
+
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ USB_CDC_REQ_SET_LINE_CODING,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, alt->desc.bInterfaceNumber,
+ lc, sizeof(*lc), USB_CTRL_SET_TIMEOUT);
+ if (ret < 0)
+ dev_err(&port->dev, "Failed to set line coding: %d\n", ret);
+
+ kfree(lc);
+}
+
+static void xr_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ /*
+ * XR21V141X does not have a CUSTOM_DRIVER flag and always enters CDC
+ * mode upon receiving CDC requests.
+ */
+ if (data->type->set_line_settings)
+ data->type->set_line_settings(tty, port, old_termios);
+ else
+ xr_cdc_set_line_coding(tty, port, old_termios);
xr_set_flow_mode(tty, port, old_termios);
}
static int xr_open(struct tty_struct *tty, struct usb_serial_port *port)
{
- u8 gpio_dir;
int ret;
+ ret = xr_fifo_reset(port);
+ if (ret)
+ return ret;
+
ret = xr_uart_enable(port);
if (ret) {
dev_err(&port->dev, "Failed to enable UART\n");
return ret;
}
- /*
- * Configure DTR and RTS as outputs and RI, CD, DSR and CTS as
- * inputs.
- */
- gpio_dir = XR21V141X_UART_MODE_DTR | XR21V141X_UART_MODE_RTS;
- xr_set_reg_uart(port, XR21V141X_REG_GPIO_DIR, gpio_dir);
-
/* Setup termios */
if (tty)
xr_set_termios(tty, port, NULL);
@@ -545,15 +861,133 @@ static void xr_close(struct usb_serial_port *port)
static int xr_probe(struct usb_serial *serial, const struct usb_device_id *id)
{
- /* Don't bind to control interface */
- if (serial->interface->cur_altsetting->desc.bInterfaceNumber == 0)
+ struct usb_interface *control = serial->interface;
+ struct usb_host_interface *alt = control->cur_altsetting;
+ struct usb_cdc_parsed_header hdrs;
+ struct usb_cdc_union_desc *desc;
+ struct usb_interface *data;
+ int ret;
+
+ ret = cdc_parse_cdc_header(&hdrs, control, alt->extra, alt->extralen);
+ if (ret < 0)
+ return -ENODEV;
+
+ desc = hdrs.usb_cdc_union_desc;
+ if (!desc)
+ return -ENODEV;
+
+ data = usb_ifnum_to_if(serial->dev, desc->bSlaveInterface0);
+ if (!data)
return -ENODEV;
+ ret = usb_serial_claim_interface(serial, data);
+ if (ret)
+ return ret;
+
+ usb_set_serial_data(serial, (void *)id->driver_info);
+
+ return 0;
+}
+
+static int xr_gpio_init(struct usb_serial_port *port, const struct xr_type *type)
+{
+ u16 mask, mode;
+ int ret;
+
+ /*
+ * Configure all pins as GPIO except for Receive and Transmit Toggle.
+ */
+ mode = 0;
+ if (type->have_xmit_toggle)
+ mode |= XR_GPIO_MODE_RX_TOGGLE | XR_GPIO_MODE_TX_TOGGLE;
+
+ ret = xr_set_reg_uart(port, type->gpio_mode, mode);
+ if (ret)
+ return ret;
+
+ /*
+ * Configure DTR and RTS as outputs and make sure they are deasserted
+ * (active low), and configure RI, CD, DSR and CTS as inputs.
+ */
+ mask = XR_GPIO_DTR | XR_GPIO_RTS;
+ ret = xr_set_reg_uart(port, type->gpio_direction, mask);
+ if (ret)
+ return ret;
+
+ ret = xr_set_reg_uart(port, type->gpio_set, mask);
+ if (ret)
+ return ret;
+
return 0;
}
+static int xr_port_probe(struct usb_serial_port *port)
+{
+ struct usb_interface_descriptor *desc;
+ const struct xr_type *type;
+ struct xr_data *data;
+ enum xr_type_id type_id;
+ int ret;
+
+ type_id = (int)(unsigned long)usb_get_serial_data(port->serial);
+ type = &xr_types[type_id];
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->type = type;
+
+ desc = &port->serial->interface->cur_altsetting->desc;
+ if (type_id == XR21V141X)
+ data->channel = desc->bInterfaceNumber / 2;
+ else
+ data->channel = desc->bInterfaceNumber;
+
+ usb_set_serial_port_data(port, data);
+
+ if (type->custom_driver) {
+ ret = xr_set_reg_uart(port, type->custom_driver,
+ XR_CUSTOM_DRIVER_ACTIVE);
+ if (ret)
+ goto err_free;
+ }
+
+ ret = xr_gpio_init(port, type);
+ if (ret)
+ goto err_free;
+
+ return 0;
+
+err_free:
+ kfree(data);
+
+ return ret;
+}
+
+static void xr_port_remove(struct usb_serial_port *port)
+{
+ struct xr_data *data = usb_get_serial_port_data(port);
+
+ kfree(data);
+}
+
+#define XR_DEVICE(vid, pid, type) \
+ USB_DEVICE_INTERFACE_CLASS((vid), (pid), USB_CLASS_COMM), \
+ .driver_info = (type)
+
static const struct usb_device_id id_table[] = {
- { USB_DEVICE(0x04e2, 0x1410) }, /* XR21V141X */
+ { XR_DEVICE(0x04e2, 0x1400, XR2280X) },
+ { XR_DEVICE(0x04e2, 0x1401, XR2280X) },
+ { XR_DEVICE(0x04e2, 0x1402, XR2280X) },
+ { XR_DEVICE(0x04e2, 0x1403, XR2280X) },
+ { XR_DEVICE(0x04e2, 0x1410, XR21V141X) },
+ { XR_DEVICE(0x04e2, 0x1411, XR21B1411) },
+ { XR_DEVICE(0x04e2, 0x1412, XR21V141X) },
+ { XR_DEVICE(0x04e2, 0x1414, XR21V141X) },
+ { XR_DEVICE(0x04e2, 0x1420, XR21B142X) },
+ { XR_DEVICE(0x04e2, 0x1422, XR21B142X) },
+ { XR_DEVICE(0x04e2, 0x1424, XR21B142X) },
{ }
};
MODULE_DEVICE_TABLE(usb, id_table);
@@ -566,6 +1000,8 @@ static struct usb_serial_driver xr_device = {
.id_table = id_table,
.num_ports = 1,
.probe = xr_probe,
+ .port_probe = xr_port_probe,
+ .port_remove = xr_port_remove,
.open = xr_open,
.close = xr_close,
.break_ctl = xr_break_ctl,
diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c
index 588818483f4b..bcc4a2fad863 100644
--- a/drivers/usb/storage/datafab.c
+++ b/drivers/usb/storage/datafab.c
@@ -294,7 +294,6 @@ static int datafab_write_data(struct us_data *us,
if (reply[0] != 0x50 && reply[1] != 0) {
usb_stor_dbg(us, "Gah! write return code: %02x %02x\n",
reply[0], reply[1]);
- result = USB_STOR_TRANSPORT_ERROR;
goto leave;
}
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index 270e81c087e9..a0418f23b4aa 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -50,6 +50,8 @@ source "drivers/usb/typec/tcpm/Kconfig"
source "drivers/usb/typec/ucsi/Kconfig"
+source "drivers/usb/typec/tipd/Kconfig"
+
config TYPEC_HD3SS3220
tristate "TI HD3SS3220 Type-C DRP Port controller driver"
depends on I2C
@@ -61,19 +63,6 @@ config TYPEC_HD3SS3220
If you choose to build this driver as a dynamically linked module, the
module will be called hd3ss3220.ko.
-config TYPEC_TPS6598X
- tristate "TI TPS6598x USB Power Delivery controller driver"
- depends on I2C
- select POWER_SUPPLY
- select REGMAP_I2C
- select USB_ROLE_SWITCH
- help
- Say Y or M here if your system has TI TPS65982 or TPS65983 USB Power
- Delivery controller.
-
- If you choose to build this driver as a dynamically linked module, the
- module will be called tps6598x.ko.
-
config TYPEC_STUSB160X
tristate "STMicroelectronics STUSB160x Type-C controller driver"
depends on I2C
diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
index d03b48c4b864..a0adb8947a30 100644
--- a/drivers/usb/typec/Makefile
+++ b/drivers/usb/typec/Makefile
@@ -1,11 +1,11 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_TYPEC) += typec.o
-typec-y := class.o mux.o bus.o
+typec-y := class.o mux.o bus.o port-mapper.o
obj-$(CONFIG_TYPEC) += altmodes/
obj-$(CONFIG_TYPEC_TCPM) += tcpm/
obj-$(CONFIG_TYPEC_UCSI) += ucsi/
+obj-$(CONFIG_TYPEC_TPS6598X) += tipd/
obj-$(CONFIG_TYPEC_HD3SS3220) += hd3ss3220.o
-obj-$(CONFIG_TYPEC_TPS6598X) += tps6598x.o
obj-$(CONFIG_TYPEC_QCOM_PMIC) += qcom-pmic-typec.o
obj-$(CONFIG_TYPEC_STUSB160X) += stusb160x.o
obj-$(CONFIG_TYPEC) += mux/
diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
index e8ddb81cb6df..7f3c9a8e2bf0 100644
--- a/drivers/usb/typec/bus.c
+++ b/drivers/usb/typec/bus.c
@@ -9,6 +9,8 @@
#include <linux/usb/pd_vdo.h>
#include "bus.h"
+#include "class.h"
+#include "mux.h"
static inline int
typec_altmode_set_mux(struct altmode *alt, unsigned long conf, void *data)
diff --git a/drivers/usb/typec/bus.h b/drivers/usb/typec/bus.h
index 8ba8112d2740..56dec268d4dd 100644
--- a/drivers/usb/typec/bus.h
+++ b/drivers/usb/typec/bus.h
@@ -4,9 +4,9 @@
#define __USB_TYPEC_ALTMODE_H__
#include <linux/usb/typec_altmode.h>
-#include <linux/usb/typec_mux.h>
struct bus_type;
+struct typec_mux;
struct altmode {
unsigned int id;
@@ -28,24 +28,7 @@ struct altmode {
extern struct bus_type typec_bus;
extern const struct device_type typec_altmode_dev_type;
-extern const struct device_type typec_port_dev_type;
#define is_typec_altmode(_dev_) (_dev_->type == &typec_altmode_dev_type)
-#define is_typec_port(_dev_) (_dev_->type == &typec_port_dev_type)
-
-extern struct class typec_mux_class;
-
-struct typec_switch {
- struct device dev;
- typec_switch_set_fn_t set;
-};
-
-struct typec_mux {
- struct device dev;
- typec_mux_set_fn_t set;
-};
-
-#define to_typec_switch(_dev_) container_of(_dev_, struct typec_switch, dev)
-#define to_typec_mux(_dev_) container_of(_dev_, struct typec_mux, dev)
#endif /* __USB_TYPEC_ALTMODE_H__ */
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 45f0bf65e9ab..b9429c9f65f6 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -6,78 +6,23 @@
* Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
*/
-#include <linux/device.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/property.h>
#include <linux/slab.h>
#include <linux/usb/pd_vdo.h>
+#include <linux/usb/typec_mux.h>
#include "bus.h"
+#include "class.h"
-struct typec_plug {
- struct device dev;
- enum typec_plug_index index;
- struct ida mode_ids;
- int num_altmodes;
-};
-
-struct typec_cable {
- struct device dev;
- enum typec_plug_type type;
- struct usb_pd_identity *identity;
- unsigned int active:1;
- u16 pd_revision; /* 0300H = "3.0" */
-};
-
-struct typec_partner {
- struct device dev;
- unsigned int usb_pd:1;
- struct usb_pd_identity *identity;
- enum typec_accessory accessory;
- struct ida mode_ids;
- int num_altmodes;
- u16 pd_revision; /* 0300H = "3.0" */
- enum usb_pd_svdm_ver svdm_version;
-};
+static DEFINE_IDA(typec_index_ida);
-struct typec_port {
- unsigned int id;
- struct device dev;
- struct ida mode_ids;
-
- int prefer_role;
- enum typec_data_role data_role;
- enum typec_role pwr_role;
- enum typec_role vconn_role;
- enum typec_pwr_opmode pwr_opmode;
- enum typec_port_type port_type;
- struct mutex port_type_lock;
-
- enum typec_orientation orientation;
- struct typec_switch *sw;
- struct typec_mux *mux;
-
- const struct typec_capability *cap;
- const struct typec_operations *ops;
+struct class typec_class = {
+ .name = "typec",
+ .owner = THIS_MODULE,
};
-#define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev)
-#define to_typec_plug(_dev_) container_of(_dev_, struct typec_plug, dev)
-#define to_typec_cable(_dev_) container_of(_dev_, struct typec_cable, dev)
-#define to_typec_partner(_dev_) container_of(_dev_, struct typec_partner, dev)
-
-static const struct device_type typec_partner_dev_type;
-static const struct device_type typec_cable_dev_type;
-static const struct device_type typec_plug_dev_type;
-
-#define is_typec_partner(_dev_) (_dev_->type == &typec_partner_dev_type)
-#define is_typec_cable(_dev_) (_dev_->type == &typec_cable_dev_type)
-#define is_typec_plug(_dev_) (_dev_->type == &typec_plug_dev_type)
-
-static DEFINE_IDA(typec_index_ida);
-static struct class *typec_class;
-
/* ------------------------------------------------------------------------- */
/* Common attributes */
@@ -610,7 +555,7 @@ typec_register_altmode(struct device *parent,
/* Plug alt modes need a class to generate udev events. */
if (is_typec_plug(parent))
- alt->adev.dev.class = typec_class;
+ alt->adev.dev.class = &typec_class;
ret = device_register(&alt->adev.dev);
if (ret) {
@@ -726,7 +671,7 @@ static void typec_partner_release(struct device *dev)
kfree(partner);
}
-static const struct device_type typec_partner_dev_type = {
+const struct device_type typec_partner_dev_type = {
.name = "typec_partner",
.groups = typec_partner_groups,
.release = typec_partner_release,
@@ -874,7 +819,7 @@ struct typec_partner *typec_register_partner(struct typec_port *port,
partner->identity = desc->identity;
}
- partner->dev.class = typec_class;
+ partner->dev.class = &typec_class;
partner->dev.parent = &port->dev;
partner->dev.type = &typec_partner_dev_type;
dev_set_name(&partner->dev, "%s-partner", dev_name(&port->dev));
@@ -941,7 +886,7 @@ static const struct attribute_group *typec_plug_groups[] = {
NULL
};
-static const struct device_type typec_plug_dev_type = {
+const struct device_type typec_plug_dev_type = {
.name = "typec_plug",
.groups = typec_plug_groups,
.release = typec_plug_release,
@@ -1026,7 +971,7 @@ struct typec_plug *typec_register_plug(struct typec_cable *cable,
ida_init(&plug->mode_ids);
plug->num_altmodes = -1;
plug->index = desc->index;
- plug->dev.class = typec_class;
+ plug->dev.class = &typec_class;
plug->dev.parent = &cable->dev;
plug->dev.type = &typec_plug_dev_type;
dev_set_name(&plug->dev, "%s-%s", dev_name(cable->dev.parent), name);
@@ -1089,7 +1034,7 @@ static void typec_cable_release(struct device *dev)
kfree(cable);
}
-static const struct device_type typec_cable_dev_type = {
+const struct device_type typec_cable_dev_type = {
.name = "typec_cable",
.groups = typec_cable_groups,
.release = typec_cable_release,
@@ -1191,7 +1136,7 @@ struct typec_cable *typec_register_cable(struct typec_port *port,
cable->identity = desc->identity;
}
- cable->dev.class = typec_class;
+ cable->dev.class = &typec_class;
cable->dev.parent = &port->dev;
cable->dev.type = &typec_cable_dev_type;
dev_set_name(&cable->dev, "%s-cable", dev_name(&port->dev));
@@ -1978,6 +1923,60 @@ typec_port_register_altmode(struct typec_port *port,
}
EXPORT_SYMBOL_GPL(typec_port_register_altmode);
+void typec_port_register_altmodes(struct typec_port *port,
+ const struct typec_altmode_ops *ops, void *drvdata,
+ struct typec_altmode **altmodes, size_t n)
+{
+ struct fwnode_handle *altmodes_node, *child;
+ struct typec_altmode_desc desc;
+ struct typec_altmode *alt;
+ size_t index = 0;
+ u32 svid, vdo;
+ int ret;
+
+ altmodes_node = device_get_named_child_node(&port->dev, "altmodes");
+ if (!altmodes_node)
+ return; /* No altmodes specified */
+
+ fwnode_for_each_child_node(altmodes_node, child) {
+ ret = fwnode_property_read_u32(child, "svid", &svid);
+ if (ret) {
+ dev_err(&port->dev, "Error reading svid for altmode %s\n",
+ fwnode_get_name(child));
+ continue;
+ }
+
+ ret = fwnode_property_read_u32(child, "vdo", &vdo);
+ if (ret) {
+ dev_err(&port->dev, "Error reading vdo for altmode %s\n",
+ fwnode_get_name(child));
+ continue;
+ }
+
+ if (index >= n) {
+ dev_err(&port->dev, "Error not enough space for altmode %s\n",
+ fwnode_get_name(child));
+ continue;
+ }
+
+ desc.svid = svid;
+ desc.vdo = vdo;
+ desc.mode = index + 1;
+ alt = typec_port_register_altmode(port, &desc);
+ if (IS_ERR(alt)) {
+ dev_err(&port->dev, "Error registering altmode %s\n",
+ fwnode_get_name(child));
+ continue;
+ }
+
+ alt->ops = ops;
+ typec_altmode_set_drvdata(alt, drvdata);
+ altmodes[index] = alt;
+ index++;
+ }
+}
+EXPORT_SYMBOL_GPL(typec_port_register_altmodes);
+
/**
* typec_register_port - Register a USB Type-C Port
* @parent: Parent device
@@ -2038,6 +2037,8 @@ struct typec_port *typec_register_port(struct device *parent,
ida_init(&port->mode_ids);
mutex_init(&port->port_type_lock);
+ mutex_init(&port->port_list_lock);
+ INIT_LIST_HEAD(&port->port_list);
port->id = id;
port->ops = cap->ops;
@@ -2045,7 +2046,7 @@ struct typec_port *typec_register_port(struct device *parent,
port->prefer_role = cap->prefer_role;
device_initialize(&port->dev);
- port->dev.class = typec_class;
+ port->dev.class = &typec_class;
port->dev.parent = parent;
port->dev.fwnode = cap->fwnode;
port->dev.type = &typec_port_dev_type;
@@ -2079,6 +2080,10 @@ struct typec_port *typec_register_port(struct device *parent,
return ERR_PTR(ret);
}
+ ret = typec_link_ports(port);
+ if (ret)
+ dev_warn(&port->dev, "failed to create symlinks (%d)\n", ret);
+
return port;
}
EXPORT_SYMBOL_GPL(typec_register_port);
@@ -2091,8 +2096,10 @@ EXPORT_SYMBOL_GPL(typec_register_port);
*/
void typec_unregister_port(struct typec_port *port)
{
- if (!IS_ERR_OR_NULL(port))
+ if (!IS_ERR_OR_NULL(port)) {
+ typec_unlink_ports(port);
device_unregister(&port->dev);
+ }
}
EXPORT_SYMBOL_GPL(typec_unregister_port);
@@ -2108,11 +2115,9 @@ static int __init typec_init(void)
if (ret)
goto err_unregister_bus;
- typec_class = class_create(THIS_MODULE, "typec");
- if (IS_ERR(typec_class)) {
- ret = PTR_ERR(typec_class);
+ ret = class_register(&typec_class);
+ if (ret)
goto err_unregister_mux_class;
- }
return 0;
@@ -2128,7 +2133,7 @@ subsys_initcall(typec_init);
static void __exit typec_exit(void)
{
- class_destroy(typec_class);
+ class_unregister(&typec_class);
ida_destroy(&typec_index_ida);
bus_unregister(&typec_bus);
class_unregister(&typec_mux_class);
diff --git a/drivers/usb/typec/class.h b/drivers/usb/typec/class.h
new file mode 100644
index 000000000000..aef03eb7e152
--- /dev/null
+++ b/drivers/usb/typec/class.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __USB_TYPEC_CLASS__
+#define __USB_TYPEC_CLASS__
+
+#include <linux/device.h>
+#include <linux/usb/typec.h>
+
+struct typec_mux;
+struct typec_switch;
+
+struct typec_plug {
+ struct device dev;
+ enum typec_plug_index index;
+ struct ida mode_ids;
+ int num_altmodes;
+};
+
+struct typec_cable {
+ struct device dev;
+ enum typec_plug_type type;
+ struct usb_pd_identity *identity;
+ unsigned int active:1;
+ u16 pd_revision; /* 0300H = "3.0" */
+};
+
+struct typec_partner {
+ struct device dev;
+ unsigned int usb_pd:1;
+ struct usb_pd_identity *identity;
+ enum typec_accessory accessory;
+ struct ida mode_ids;
+ int num_altmodes;
+ u16 pd_revision; /* 0300H = "3.0" */
+ enum usb_pd_svdm_ver svdm_version;
+};
+
+struct typec_port {
+ unsigned int id;
+ struct device dev;
+ struct ida mode_ids;
+
+ int prefer_role;
+ enum typec_data_role data_role;
+ enum typec_role pwr_role;
+ enum typec_role vconn_role;
+ enum typec_pwr_opmode pwr_opmode;
+ enum typec_port_type port_type;
+ struct mutex port_type_lock;
+
+ enum typec_orientation orientation;
+ struct typec_switch *sw;
+ struct typec_mux *mux;
+
+ const struct typec_capability *cap;
+ const struct typec_operations *ops;
+
+ struct list_head port_list;
+ struct mutex port_list_lock; /* Port list lock */
+
+ void *pld;
+};
+
+#define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev)
+#define to_typec_plug(_dev_) container_of(_dev_, struct typec_plug, dev)
+#define to_typec_cable(_dev_) container_of(_dev_, struct typec_cable, dev)
+#define to_typec_partner(_dev_) container_of(_dev_, struct typec_partner, dev)
+
+extern const struct device_type typec_partner_dev_type;
+extern const struct device_type typec_cable_dev_type;
+extern const struct device_type typec_plug_dev_type;
+extern const struct device_type typec_port_dev_type;
+
+#define is_typec_partner(dev) ((dev)->type == &typec_partner_dev_type)
+#define is_typec_cable(dev) ((dev)->type == &typec_cable_dev_type)
+#define is_typec_plug(dev) ((dev)->type == &typec_plug_dev_type)
+#define is_typec_port(dev) ((dev)->type == &typec_port_dev_type)
+
+extern struct class typec_mux_class;
+extern struct class typec_class;
+
+int typec_link_ports(struct typec_port *connector);
+void typec_unlink_ports(struct typec_port *connector);
+
+#endif /* __USB_TYPEC_CLASS__ */
diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c
index cf720e944aaa..9da22ae3006c 100644
--- a/drivers/usb/typec/mux.c
+++ b/drivers/usb/typec/mux.c
@@ -13,9 +13,9 @@
#include <linux/mutex.h>
#include <linux/property.h>
#include <linux/slab.h>
-#include <linux/usb/typec_mux.h>
-#include "bus.h"
+#include "class.h"
+#include "mux.h"
static bool dev_name_ends_with(struct device *dev, const char *suffix)
{
diff --git a/drivers/usb/typec/mux.h b/drivers/usb/typec/mux.h
new file mode 100644
index 000000000000..4fd9426ee44f
--- /dev/null
+++ b/drivers/usb/typec/mux.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __USB_TYPEC_MUX__
+#define __USB_TYPEC_MUX__
+
+#include <linux/usb/typec_mux.h>
+
+struct typec_switch {
+ struct device dev;
+ typec_switch_set_fn_t set;
+};
+
+struct typec_mux {
+ struct device dev;
+ typec_mux_set_fn_t set;
+};
+
+#define to_typec_switch(_dev_) container_of(_dev_, struct typec_switch, dev)
+#define to_typec_mux(_dev_) container_of(_dev_, struct typec_mux, dev)
+
+#endif /* __USB_TYPEC_MUX__ */
diff --git a/drivers/usb/typec/port-mapper.c b/drivers/usb/typec/port-mapper.c
new file mode 100644
index 000000000000..9b0991bdf391
--- /dev/null
+++ b/drivers/usb/typec/port-mapper.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USB Type-C Connector Class Port Mapping Utility
+ *
+ * Copyright (C) 2021, Intel Corporation
+ * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/usb.h>
+#include <linux/usb/typec.h>
+
+#include "class.h"
+
+struct port_node {
+ struct list_head list;
+ struct device *dev;
+ void *pld;
+};
+
+static int acpi_pld_match(const struct acpi_pld_info *pld1,
+ const struct acpi_pld_info *pld2)
+{
+ if (!pld1 || !pld2)
+ return 0;
+
+ /*
+ * To speed things up, first checking only the group_position. It seems
+ * to often have the first unique value in the _PLD.
+ */
+ if (pld1->group_position == pld2->group_position)
+ return !memcmp(pld1, pld2, sizeof(struct acpi_pld_info));
+
+ return 0;
+}
+
+static void *get_pld(struct device *dev)
+{
+#ifdef CONFIG_ACPI
+ struct acpi_pld_info *pld;
+ acpi_status status;
+
+ if (!has_acpi_companion(dev))
+ return NULL;
+
+ status = acpi_get_physical_device_location(ACPI_HANDLE(dev), &pld);
+ if (ACPI_FAILURE(status))
+ return NULL;
+
+ return pld;
+#else
+ return NULL;
+#endif
+}
+
+static void free_pld(void *pld)
+{
+#ifdef CONFIG_ACPI
+ ACPI_FREE(pld);
+#endif
+}
+
+static int __link_port(struct typec_port *con, struct port_node *node)
+{
+ int ret;
+
+ ret = sysfs_create_link(&node->dev->kobj, &con->dev.kobj, "connector");
+ if (ret)
+ return ret;
+
+ ret = sysfs_create_link(&con->dev.kobj, &node->dev->kobj,
+ dev_name(node->dev));
+ if (ret) {
+ sysfs_remove_link(&node->dev->kobj, "connector");
+ return ret;
+ }
+
+ list_add_tail(&node->list, &con->port_list);
+
+ return 0;
+}
+
+static int link_port(struct typec_port *con, struct port_node *node)
+{
+ int ret;
+
+ mutex_lock(&con->port_list_lock);
+ ret = __link_port(con, node);
+ mutex_unlock(&con->port_list_lock);
+
+ return ret;
+}
+
+static void __unlink_port(struct typec_port *con, struct port_node *node)
+{
+ sysfs_remove_link(&con->dev.kobj, dev_name(node->dev));
+ sysfs_remove_link(&node->dev->kobj, "connector");
+ list_del(&node->list);
+}
+
+static void unlink_port(struct typec_port *con, struct port_node *node)
+{
+ mutex_lock(&con->port_list_lock);
+ __unlink_port(con, node);
+ mutex_unlock(&con->port_list_lock);
+}
+
+static struct port_node *create_port_node(struct device *port)
+{
+ struct port_node *node;
+
+ node = kzalloc(sizeof(*node), GFP_KERNEL);
+ if (!node)
+ return ERR_PTR(-ENOMEM);
+
+ node->dev = get_device(port);
+ node->pld = get_pld(port);
+
+ return node;
+}
+
+static void remove_port_node(struct port_node *node)
+{
+ put_device(node->dev);
+ free_pld(node->pld);
+ kfree(node);
+}
+
+static int connector_match(struct device *dev, const void *data)
+{
+ const struct port_node *node = data;
+
+ if (!is_typec_port(dev))
+ return 0;
+
+ return acpi_pld_match(to_typec_port(dev)->pld, node->pld);
+}
+
+static struct device *find_connector(struct port_node *node)
+{
+ if (!node->pld)
+ return NULL;
+
+ return class_find_device(&typec_class, NULL, node, connector_match);
+}
+
+/**
+ * typec_link_port - Link a port to its connector
+ * @port: The port device
+ *
+ * Find the connector of @port and create symlink named "connector" for it.
+ * Returns 0 on success, or errno in case of a failure.
+ *
+ * NOTE. The function increments the reference count of @port on success.
+ */
+int typec_link_port(struct device *port)
+{
+ struct device *connector;
+ struct port_node *node;
+ int ret;
+
+ node = create_port_node(port);
+ if (IS_ERR(node))
+ return PTR_ERR(node);
+
+ connector = find_connector(node);
+ if (!connector) {
+ ret = 0;
+ goto remove_node;
+ }
+
+ ret = link_port(to_typec_port(connector), node);
+ if (ret)
+ goto put_connector;
+
+ return 0;
+
+put_connector:
+ put_device(connector);
+remove_node:
+ remove_port_node(node);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(typec_link_port);
+
+static int port_match_and_unlink(struct device *connector, void *port)
+{
+ struct port_node *node;
+ struct port_node *tmp;
+ int ret = 0;
+
+ if (!is_typec_port(connector))
+ return 0;
+
+ mutex_lock(&to_typec_port(connector)->port_list_lock);
+ list_for_each_entry_safe(node, tmp, &to_typec_port(connector)->port_list, list) {
+ ret = node->dev == port;
+ if (ret) {
+ unlink_port(to_typec_port(connector), node);
+ remove_port_node(node);
+ put_device(connector);
+ break;
+ }
+ }
+ mutex_unlock(&to_typec_port(connector)->port_list_lock);
+
+ return ret;
+}
+
+/**
+ * typec_unlink_port - Unlink port from its connector
+ * @port: The port device
+ *
+ * Removes the symlink "connector" and decrements the reference count of @port.
+ */
+void typec_unlink_port(struct device *port)
+{
+ class_for_each_device(&typec_class, NULL, port, port_match_and_unlink);
+}
+EXPORT_SYMBOL_GPL(typec_unlink_port);
+
+static int each_port(struct device *port, void *connector)
+{
+ struct port_node *node;
+ int ret;
+
+ node = create_port_node(port);
+ if (IS_ERR(node))
+ return PTR_ERR(node);
+
+ if (!connector_match(connector, node)) {
+ remove_port_node(node);
+ return 0;
+ }
+
+ ret = link_port(to_typec_port(connector), node);
+ if (ret) {
+ remove_port_node(node->pld);
+ return ret;
+ }
+
+ get_device(connector);
+
+ return 0;
+}
+
+int typec_link_ports(struct typec_port *con)
+{
+ int ret = 0;
+
+ con->pld = get_pld(&con->dev);
+ if (!con->pld)
+ return 0;
+
+ ret = usb_for_each_port(&con->dev, each_port);
+ if (ret)
+ typec_unlink_ports(con);
+
+ return ret;
+}
+
+void typec_unlink_ports(struct typec_port *con)
+{
+ struct port_node *node;
+ struct port_node *tmp;
+
+ mutex_lock(&con->port_list_lock);
+
+ list_for_each_entry_safe(node, tmp, &con->port_list, list) {
+ __unlink_port(con, node);
+ remove_port_node(node);
+ put_device(&con->dev);
+ }
+
+ mutex_unlock(&con->port_list_lock);
+
+ free_pld(con->pld);
+}
diff --git a/drivers/usb/typec/stusb160x.c b/drivers/usb/typec/stusb160x.c
index d21750bbbb44..6eaeba9b096e 100644
--- a/drivers/usb/typec/stusb160x.c
+++ b/drivers/usb/typec/stusb160x.c
@@ -682,8 +682,8 @@ static int stusb160x_probe(struct i2c_client *client)
}
fwnode = device_get_named_child_node(chip->dev, "connector");
- if (IS_ERR(fwnode))
- return PTR_ERR(fwnode);
+ if (!fwnode)
+ return -ENODEV;
/*
* When both VDD and VSYS power supplies are present, the low power
diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index ebc46b9f776c..7a2a17866a82 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -213,8 +213,9 @@ static void fusb302_debugfs_init(struct fusb302_chip *chip)
mutex_init(&chip->logbuffer_lock);
snprintf(name, NAME_MAX, "fusb302-%s", dev_name(chip->dev));
- chip->dentry = debugfs_create_file(name, S_IFREG | 0444, usb_debug_root,
- chip, &fusb302_debug_fops);
+ chip->dentry = debugfs_create_dir(name, usb_debug_root);
+ debugfs_create_file("log", S_IFREG | 0444, chip->dentry, chip,
+ &fusb302_debug_fops);
}
static void fusb302_debugfs_exit(struct fusb302_chip *chip)
diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index a27deb0b5f03..25b480752266 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -24,6 +24,11 @@
#define AUTO_DISCHARGE_PD_HEADROOM_MV 850
#define AUTO_DISCHARGE_PPS_HEADROOM_MV 1250
+#define tcpc_presenting_rd(reg, cc) \
+ (!(TCPC_ROLE_CTRL_DRP & (reg)) && \
+ (((reg) & (TCPC_ROLE_CTRL_## cc ##_MASK << TCPC_ROLE_CTRL_## cc ##_SHIFT)) == \
+ (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_## cc ##_SHIFT)))
+
struct tcpci {
struct device *dev;
@@ -178,19 +183,25 @@ static int tcpci_get_cc(struct tcpc_dev *tcpc,
enum typec_cc_status *cc1, enum typec_cc_status *cc2)
{
struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
- unsigned int reg;
+ unsigned int reg, role_control;
int ret;
+ ret = regmap_read(tcpci->regmap, TCPC_ROLE_CTRL, &role_control);
+ if (ret < 0)
+ return ret;
+
ret = regmap_read(tcpci->regmap, TCPC_CC_STATUS, &reg);
if (ret < 0)
return ret;
*cc1 = tcpci_to_typec_cc((reg >> TCPC_CC_STATUS_CC1_SHIFT) &
TCPC_CC_STATUS_CC1_MASK,
- reg & TCPC_CC_STATUS_TERM);
+ reg & TCPC_CC_STATUS_TERM ||
+ tcpc_presenting_rd(role_control, CC1));
*cc2 = tcpci_to_typec_cc((reg >> TCPC_CC_STATUS_CC2_SHIFT) &
TCPC_CC_STATUS_CC2_MASK,
- reg & TCPC_CC_STATUS_TERM);
+ reg & TCPC_CC_STATUS_TERM ||
+ tcpc_presenting_rd(role_control, CC2));
return 0;
}
diff --git a/drivers/usb/typec/tcpm/tcpci.h b/drivers/usb/typec/tcpm/tcpci.h
index 57b6e24e0a0c..2be7a77d400e 100644
--- a/drivers/usb/typec/tcpm/tcpci.h
+++ b/drivers/usb/typec/tcpm/tcpci.h
@@ -47,7 +47,10 @@
#define TCPC_TCPC_CTRL 0x19
#define TCPC_TCPC_CTRL_ORIENTATION BIT(0)
+#define PLUG_ORNT_CC1 0
+#define PLUG_ORNT_CC2 1
#define TCPC_TCPC_CTRL_BIST_TM BIT(1)
+#define TCPC_TCPC_CTRL_EN_LK4CONN_ALRT BIT(6)
#define TCPC_EXTENDED_STATUS 0x20
#define TCPC_EXTENDED_STATUS_VSAFE0V BIT(0)
@@ -74,21 +77,28 @@
#define TCPC_POWER_CTRL_VCONN_ENABLE BIT(0)
#define TCPC_POWER_CTRL_BLEED_DISCHARGE BIT(3)
#define TCPC_POWER_CTRL_AUTO_DISCHARGE BIT(4)
+#define TCPC_DIS_VOLT_ALRM BIT(5)
+#define TCPC_POWER_CTRL_VBUS_VOLT_MON BIT(6)
#define TCPC_FAST_ROLE_SWAP_EN BIT(7)
#define TCPC_CC_STATUS 0x1d
#define TCPC_CC_STATUS_TOGGLING BIT(5)
#define TCPC_CC_STATUS_TERM BIT(4)
+#define TCPC_CC_STATUS_TERM_RP 0
+#define TCPC_CC_STATUS_TERM_RD 1
+#define TCPC_CC_STATE_SRC_OPEN 0
#define TCPC_CC_STATUS_CC2_SHIFT 2
#define TCPC_CC_STATUS_CC2_MASK 0x3
#define TCPC_CC_STATUS_CC1_SHIFT 0
#define TCPC_CC_STATUS_CC1_MASK 0x3
#define TCPC_POWER_STATUS 0x1e
+#define TCPC_POWER_STATUS_DBG_ACC_CON BIT(7)
#define TCPC_POWER_STATUS_UNINIT BIT(6)
#define TCPC_POWER_STATUS_SOURCING_VBUS BIT(4)
#define TCPC_POWER_STATUS_VBUS_DET BIT(3)
#define TCPC_POWER_STATUS_VBUS_PRES BIT(2)
+#define TCPC_POWER_STATUS_SINKING_VBUS BIT(0)
#define TCPC_FAULT_STATUS 0x1f
@@ -121,6 +131,10 @@
#define TCPC_RX_DETECT 0x2f
#define TCPC_RX_DETECT_HARD_RESET BIT(5)
#define TCPC_RX_DETECT_SOP BIT(0)
+#define TCPC_RX_DETECT_SOP1 BIT(1)
+#define TCPC_RX_DETECT_SOP2 BIT(2)
+#define TCPC_RX_DETECT_DBG1 BIT(3)
+#define TCPC_RX_DETECT_DBG2 BIT(4)
#define TCPC_RX_BYTE_CNT 0x30
#define TCPC_RX_BUF_FRAME_TYPE 0x31
@@ -139,6 +153,8 @@
#define TCPC_TX_DATA 0x54 /* through 0x6f */
#define TCPC_VBUS_VOLTAGE 0x70
+#define TCPC_VBUS_VOLTAGE_MASK 0x3ff
+#define TCPC_VBUS_VOLTAGE_LSB_MV 25
#define TCPC_VBUS_SINK_DISCONNECT_THRESH 0x72
#define TCPC_VBUS_SINK_DISCONNECT_THRESH_LSB_MV 25
#define TCPC_VBUS_SINK_DISCONNECT_THRESH_MAX 0x3ff
diff --git a/drivers/usb/typec/tcpm/tcpci_maxim.c b/drivers/usb/typec/tcpm/tcpci_maxim.c
index 041a1c393594..df2505570f07 100644
--- a/drivers/usb/typec/tcpm/tcpci_maxim.c
+++ b/drivers/usb/typec/tcpm/tcpci_maxim.c
@@ -52,7 +52,7 @@ static const struct regmap_range max_tcpci_tcpci_range[] = {
regmap_reg_range(0x00, 0x95)
};
-const struct regmap_access_table max_tcpci_tcpci_write_table = {
+static const struct regmap_access_table max_tcpci_tcpci_write_table = {
.yes_ranges = max_tcpci_tcpci_range,
.n_yes_ranges = ARRAY_SIZE(max_tcpci_tcpci_range),
};
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index ce7af398c7c1..c4fdc00a3bc8 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -268,12 +268,27 @@ struct pd_mode_data {
struct typec_altmode_desc altmode_desc[ALTMODE_DISCOVERY_MAX];
};
+/*
+ * @min_volt: Actual min voltage at the local port
+ * @req_min_volt: Requested min voltage to the port partner
+ * @max_volt: Actual max voltage at the local port
+ * @req_max_volt: Requested max voltage to the port partner
+ * @max_curr: Actual max current at the local port
+ * @req_max_curr: Requested max current of the port partner
+ * @req_out_volt: Requested output voltage to the port partner
+ * @req_op_curr: Requested operating current to the port partner
+ * @supported: Parter has atleast one APDO hence supports PPS
+ * @active: PPS mode is active
+ */
struct pd_pps_data {
u32 min_volt;
+ u32 req_min_volt;
u32 max_volt;
+ u32 req_max_volt;
u32 max_curr;
- u32 out_volt;
- u32 op_curr;
+ u32 req_max_curr;
+ u32 req_out_volt;
+ u32 req_op_curr;
bool supported;
bool active;
};
@@ -389,7 +404,10 @@ struct tcpm_port {
unsigned int operating_snk_mw;
bool update_sink_caps;
- /* Requested current / voltage */
+ /* Requested current / voltage to the port partner */
+ u32 req_current_limit;
+ u32 req_supply_voltage;
+ /* Actual current / voltage limit of the local port */
u32 current_limit;
u32 supply_voltage;
@@ -438,6 +456,15 @@ struct tcpm_port {
enum tcpm_ams next_ams;
bool in_ams;
+ /* Auto vbus discharge status */
+ bool auto_vbus_discharge_enabled;
+
+ /*
+ * When set, port requests PD_P_SNK_STDBY_MW upon entering SNK_DISCOVERY and
+ * the actual currrent limit after RX of PD_CTRL_PSRDY for PD link,
+ * SNK_READY for non-pd link.
+ */
+ bool slow_charger_loop;
#ifdef CONFIG_DEBUG_FS
struct dentry *dentry;
struct mutex logbuffer_lock; /* log buffer access lock */
@@ -507,6 +534,9 @@ static const char * const pd_rev[] = {
(tcpm_port_is_sink(port) && \
((port)->cc1 == TYPEC_CC_RP_3_0 || (port)->cc2 == TYPEC_CC_RP_3_0))
+#define tcpm_wait_for_discharge(port) \
+ (((port)->auto_vbus_discharge_enabled && !(port)->vbus_vsafe0v) ? PD_T_SAFE_0V : 0)
+
static enum tcpm_state tcpm_default_state(struct tcpm_port *port)
{
if (port->port_type == TYPEC_PORT_DRP) {
@@ -703,8 +733,9 @@ static void tcpm_debugfs_init(struct tcpm_port *port)
mutex_init(&port->logbuffer_lock);
snprintf(name, NAME_MAX, "tcpm-%s", dev_name(port->dev));
- port->dentry = debugfs_create_file(name, S_IFREG | 0444, usb_debug_root,
- port, &tcpm_debug_fops);
+ port->dentry = debugfs_create_dir(name, usb_debug_root);
+ debugfs_create_file("log", S_IFREG | 0444, port->dentry, port,
+ &tcpm_debug_fops);
}
static void tcpm_debugfs_exit(struct tcpm_port *port)
@@ -773,10 +804,8 @@ static enum typec_cc_status tcpm_rp_cc(struct tcpm_port *port)
return TYPEC_CC_RP_DEF;
}
-static int tcpm_ams_finish(struct tcpm_port *port)
+static void tcpm_ams_finish(struct tcpm_port *port)
{
- int ret = 0;
-
tcpm_log(port, "AMS %s finished", tcpm_ams_str[port->ams]);
if (port->pd_capable && port->pwr_role == TYPEC_SOURCE) {
@@ -790,8 +819,6 @@ static int tcpm_ams_finish(struct tcpm_port *port)
port->in_ams = false;
port->ams = NONE_AMS;
-
- return ret;
}
static int tcpm_pd_transmit(struct tcpm_port *port,
@@ -2432,8 +2459,8 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
case SNK_TRANSITION_SINK:
if (port->vbus_present) {
tcpm_set_current_limit(port,
- port->current_limit,
- port->supply_voltage);
+ port->req_current_limit,
+ port->req_supply_voltage);
port->explicit_contract = true;
tcpm_set_auto_vbus_discharge_threshold(port,
TYPEC_PWR_MODE_PD,
@@ -2492,8 +2519,8 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
case SNK_NEGOTIATE_PPS_CAPABILITIES:
/* Revert data back from any requested PPS updates */
- port->pps_data.out_volt = port->supply_voltage;
- port->pps_data.op_curr = port->current_limit;
+ port->pps_data.req_out_volt = port->supply_voltage;
+ port->pps_data.req_op_curr = port->current_limit;
port->pps_status = (type == PD_CTRL_WAIT ?
-EAGAIN : -EOPNOTSUPP);
@@ -2542,8 +2569,12 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
case SNK_NEGOTIATE_PPS_CAPABILITIES:
port->pps_data.active = true;
- port->supply_voltage = port->pps_data.out_volt;
- port->current_limit = port->pps_data.op_curr;
+ port->pps_data.min_volt = port->pps_data.req_min_volt;
+ port->pps_data.max_volt = port->pps_data.req_max_volt;
+ port->pps_data.max_curr = port->pps_data.req_max_curr;
+ port->req_supply_voltage = port->pps_data.req_out_volt;
+ port->req_current_limit = port->pps_data.req_op_curr;
+ power_supply_changed(port->psy);
tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
break;
case SOFT_RESET_SEND:
@@ -3102,17 +3133,16 @@ static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port)
src = port->source_caps[src_pdo];
snk = port->snk_pdo[snk_pdo];
- port->pps_data.min_volt = max(pdo_pps_apdo_min_voltage(src),
- pdo_pps_apdo_min_voltage(snk));
- port->pps_data.max_volt = min(pdo_pps_apdo_max_voltage(src),
- pdo_pps_apdo_max_voltage(snk));
- port->pps_data.max_curr = min_pps_apdo_current(src, snk);
- port->pps_data.out_volt = min(port->pps_data.max_volt,
- max(port->pps_data.min_volt,
- port->pps_data.out_volt));
- port->pps_data.op_curr = min(port->pps_data.max_curr,
- port->pps_data.op_curr);
- power_supply_changed(port->psy);
+ port->pps_data.req_min_volt = max(pdo_pps_apdo_min_voltage(src),
+ pdo_pps_apdo_min_voltage(snk));
+ port->pps_data.req_max_volt = min(pdo_pps_apdo_max_voltage(src),
+ pdo_pps_apdo_max_voltage(snk));
+ port->pps_data.req_max_curr = min_pps_apdo_current(src, snk);
+ port->pps_data.req_out_volt = min(port->pps_data.req_max_volt,
+ max(port->pps_data.req_min_volt,
+ port->pps_data.req_out_volt));
+ port->pps_data.req_op_curr = min(port->pps_data.req_max_curr,
+ port->pps_data.req_op_curr);
}
return src_pdo;
@@ -3192,8 +3222,8 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
flags & RDO_CAP_MISMATCH ? " [mismatch]" : "");
}
- port->current_limit = ma;
- port->supply_voltage = mv;
+ port->req_current_limit = ma;
+ port->req_supply_voltage = mv;
return 0;
}
@@ -3239,10 +3269,10 @@ static int tcpm_pd_build_pps_request(struct tcpm_port *port, u32 *rdo)
tcpm_log(port, "Invalid APDO selected!");
return -EINVAL;
}
- max_mv = port->pps_data.max_volt;
- max_ma = port->pps_data.max_curr;
- out_mv = port->pps_data.out_volt;
- op_ma = port->pps_data.op_curr;
+ max_mv = port->pps_data.req_max_volt;
+ max_ma = port->pps_data.req_max_curr;
+ out_mv = port->pps_data.req_out_volt;
+ op_ma = port->pps_data.req_op_curr;
break;
default:
tcpm_log(port, "Invalid PDO selected!");
@@ -3289,8 +3319,8 @@ static int tcpm_pd_build_pps_request(struct tcpm_port *port, u32 *rdo)
tcpm_log(port, "Requesting APDO %d: %u mV, %u mA",
src_pdo_index, out_mv, op_ma);
- port->pps_data.op_curr = op_ma;
- port->pps_data.out_volt = out_mv;
+ port->pps_data.req_op_curr = op_ma;
+ port->pps_data.req_out_volt = out_mv;
return 0;
}
@@ -3418,6 +3448,8 @@ static int tcpm_src_attach(struct tcpm_port *port)
if (port->tcpc->enable_auto_vbus_discharge) {
ret = port->tcpc->enable_auto_vbus_discharge(port->tcpc, true);
tcpm_log_force(port, "enable vbus discharge ret:%d", ret);
+ if (!ret)
+ port->auto_vbus_discharge_enabled = true;
}
ret = tcpm_set_roles(port, true, TYPEC_SOURCE, tcpm_data_role_for_source(port));
@@ -3500,6 +3532,8 @@ static void tcpm_reset_port(struct tcpm_port *port)
if (port->tcpc->enable_auto_vbus_discharge) {
ret = port->tcpc->enable_auto_vbus_discharge(port->tcpc, false);
tcpm_log_force(port, "Disable vbus discharge ret:%d", ret);
+ if (!ret)
+ port->auto_vbus_discharge_enabled = false;
}
port->in_ams = false;
port->ams = NONE_AMS;
@@ -3533,8 +3567,6 @@ static void tcpm_reset_port(struct tcpm_port *port)
port->sink_cap_done = false;
if (port->tcpc->enable_frs)
port->tcpc->enable_frs(port->tcpc, false);
-
- power_supply_changed(port->psy);
}
static void tcpm_detach(struct tcpm_port *port)
@@ -3574,6 +3606,8 @@ static int tcpm_snk_attach(struct tcpm_port *port)
tcpm_set_auto_vbus_discharge_threshold(port, TYPEC_PWR_MODE_USB, false, VSAFE5V);
ret = port->tcpc->enable_auto_vbus_discharge(port->tcpc, true);
tcpm_log_force(port, "enable vbus discharge ret:%d", ret);
+ if (!ret)
+ port->auto_vbus_discharge_enabled = true;
}
ret = tcpm_set_roles(port, true, TYPEC_SINK, tcpm_data_role_for_sink(port));
@@ -3650,8 +3684,8 @@ static inline enum tcpm_state unattached_state(struct tcpm_port *port)
static void tcpm_check_send_discover(struct tcpm_port *port)
{
- if (port->data_role == TYPEC_HOST && port->send_discover &&
- port->pd_capable)
+ if ((port->data_role == TYPEC_HOST || port->negotiated_rev > PD_REV20) &&
+ port->send_discover && port->pd_capable)
tcpm_send_vdm(port, USB_SID_PD, CMD_DISCOVER_IDENT, NULL, 0);
port->send_discover = false;
}
@@ -4019,9 +4053,11 @@ static void run_state_machine(struct tcpm_port *port)
break;
case SNK_DISCOVERY:
if (port->vbus_present) {
- tcpm_set_current_limit(port,
- tcpm_get_current_limit(port),
- 5000);
+ u32 current_lim = tcpm_get_current_limit(port);
+
+ if (port->slow_charger_loop || (current_lim > PD_P_SNK_STDBY_MW / 5))
+ current_lim = PD_P_SNK_STDBY_MW / 5;
+ tcpm_set_current_limit(port, current_lim, 5000);
tcpm_set_charge(port, true);
tcpm_set_state(port, SNK_WAIT_CAPABILITIES, 0);
break;
@@ -4103,6 +4139,23 @@ static void run_state_machine(struct tcpm_port *port)
}
break;
case SNK_TRANSITION_SINK:
+ /* From the USB PD spec:
+ * "The Sink Shall transition to Sink Standby before a positive or
+ * negative voltage transition of VBUS. During Sink Standby
+ * the Sink Shall reduce its power draw to pSnkStdby."
+ *
+ * This is not applicable to PPS though as the port can continue
+ * to draw negotiated power without switching to standby.
+ */
+ if (port->supply_voltage != port->req_supply_voltage && !port->pps_data.active &&
+ port->current_limit * port->supply_voltage / 1000 > PD_P_SNK_STDBY_MW) {
+ u32 stdby_ma = PD_P_SNK_STDBY_MW * 1000 / port->supply_voltage;
+
+ tcpm_log(port, "Setting standby current %u mV @ %u mA",
+ port->supply_voltage, stdby_ma);
+ tcpm_set_current_limit(port, stdby_ma, port->supply_voltage);
+ }
+ fallthrough;
case SNK_TRANSITION_SINK_VBUS:
tcpm_set_state(port, hard_reset_state(port),
PD_T_PS_TRANSITION);
@@ -4116,6 +4169,8 @@ static void run_state_machine(struct tcpm_port *port)
port->pwr_opmode = TYPEC_PWR_MODE_PD;
}
+ if (!port->pd_capable && port->slow_charger_loop)
+ tcpm_set_current_limit(port, tcpm_get_current_limit(port), 5000);
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
mod_enable_frs_delayed_work(port, 0);
@@ -4676,9 +4731,9 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1,
if (tcpm_port_is_disconnected(port) ||
!tcpm_port_is_source(port)) {
if (port->port_type == TYPEC_PORT_SRC)
- tcpm_set_state(port, SRC_UNATTACHED, 0);
+ tcpm_set_state(port, SRC_UNATTACHED, tcpm_wait_for_discharge(port));
else
- tcpm_set_state(port, SNK_UNATTACHED, 0);
+ tcpm_set_state(port, SNK_UNATTACHED, tcpm_wait_for_discharge(port));
}
break;
case SNK_UNATTACHED:
@@ -4709,7 +4764,23 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1,
tcpm_set_state(port, SNK_DEBOUNCED, 0);
break;
case SNK_READY:
- if (tcpm_port_is_disconnected(port))
+ /*
+ * EXIT condition is based primarily on vbus disconnect and CC is secondary.
+ * "A port that has entered into USB PD communications with the Source and
+ * has seen the CC voltage exceed vRd-USB may monitor the CC pin to detect
+ * cable disconnect in addition to monitoring VBUS.
+ *
+ * A port that is monitoring the CC voltage for disconnect (but is not in
+ * the process of a USB PD PR_Swap or USB PD FR_Swap) shall transition to
+ * Unattached.SNK within tSinkDisconnect after the CC voltage remains below
+ * vRd-USB for tPDDebounce."
+ *
+ * When set_auto_vbus_discharge_threshold is enabled, CC pins go
+ * away before vbus decays to disconnect threshold. Allow
+ * disconnect to be driven by vbus disconnect when auto vbus
+ * discharge is enabled.
+ */
+ if (!port->auto_vbus_discharge_enabled && tcpm_port_is_disconnected(port))
tcpm_set_state(port, unattached_state(port), 0);
else if (!port->pd_capable &&
(cc1 != old_cc1 || cc2 != old_cc2))
@@ -4808,9 +4879,13 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1,
* Ignore CC changes here.
*/
break;
-
default:
- if (tcpm_port_is_disconnected(port))
+ /*
+ * While acting as sink and auto vbus discharge is enabled, Allow disconnect
+ * to be driven by vbus disconnect.
+ */
+ if (tcpm_port_is_disconnected(port) && !(port->pwr_role == TYPEC_SINK &&
+ port->auto_vbus_discharge_enabled))
tcpm_set_state(port, unattached_state(port), 0);
break;
}
@@ -4974,8 +5049,16 @@ static void _tcpm_pd_vbus_off(struct tcpm_port *port)
case SRC_TRANSITION_SUPPLY:
case SRC_READY:
case SRC_WAIT_NEW_CAPABILITIES:
- /* Force to unattached state to re-initiate connection */
- tcpm_set_state(port, SRC_UNATTACHED, 0);
+ /*
+ * Force to unattached state to re-initiate connection.
+ * DRP port should move to Unattached.SNK instead of Unattached.SRC if
+ * sink removed. Although sink removal here is due to source's vbus collapse,
+ * treat it the same way for consistency.
+ */
+ if (port->port_type == TYPEC_PORT_SRC)
+ tcpm_set_state(port, SRC_UNATTACHED, tcpm_wait_for_discharge(port));
+ else
+ tcpm_set_state(port, SNK_UNATTACHED, tcpm_wait_for_discharge(port));
break;
case PORT_RESET:
@@ -4994,9 +5077,8 @@ static void _tcpm_pd_vbus_off(struct tcpm_port *port)
break;
default:
- if (port->pwr_role == TYPEC_SINK &&
- port->attached)
- tcpm_set_state(port, SNK_UNATTACHED, 0);
+ if (port->pwr_role == TYPEC_SINK && port->attached)
+ tcpm_set_state(port, SNK_UNATTACHED, tcpm_wait_for_discharge(port));
break;
}
}
@@ -5018,7 +5100,23 @@ static void _tcpm_pd_vbus_vsafe0v(struct tcpm_port *port)
tcpm_set_state(port, tcpm_try_snk(port) ? SNK_TRY : SRC_ATTACHED,
PD_T_CC_DEBOUNCE);
break;
+ case SRC_STARTUP:
+ case SRC_SEND_CAPABILITIES:
+ case SRC_SEND_CAPABILITIES_TIMEOUT:
+ case SRC_NEGOTIATE_CAPABILITIES:
+ case SRC_TRANSITION_SUPPLY:
+ case SRC_READY:
+ case SRC_WAIT_NEW_CAPABILITIES:
+ if (port->auto_vbus_discharge_enabled) {
+ if (port->port_type == TYPEC_PORT_SRC)
+ tcpm_set_state(port, SRC_UNATTACHED, 0);
+ else
+ tcpm_set_state(port, SNK_UNATTACHED, 0);
+ }
+ break;
default:
+ if (port->pwr_role == TYPEC_SINK && port->auto_vbus_discharge_enabled)
+ tcpm_set_state(port, SNK_UNATTACHED, 0);
break;
}
}
@@ -5374,7 +5472,7 @@ static int tcpm_try_role(struct typec_port *p, int role)
return ret;
}
-static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 op_curr)
+static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 req_op_curr)
{
unsigned int target_mw;
int ret;
@@ -5392,12 +5490,12 @@ static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 op_curr)
goto port_unlock;
}
- if (op_curr > port->pps_data.max_curr) {
+ if (req_op_curr > port->pps_data.max_curr) {
ret = -EINVAL;
goto port_unlock;
}
- target_mw = (op_curr * port->pps_data.out_volt) / 1000;
+ target_mw = (req_op_curr * port->supply_voltage) / 1000;
if (target_mw < port->operating_snk_mw) {
ret = -EINVAL;
goto port_unlock;
@@ -5411,10 +5509,10 @@ static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 op_curr)
}
/* Round down operating current to align with PPS valid steps */
- op_curr = op_curr - (op_curr % RDO_PROG_CURR_MA_STEP);
+ req_op_curr = req_op_curr - (req_op_curr % RDO_PROG_CURR_MA_STEP);
reinit_completion(&port->pps_complete);
- port->pps_data.op_curr = op_curr;
+ port->pps_data.req_op_curr = req_op_curr;
port->pps_status = 0;
port->pps_pending = true;
mutex_unlock(&port->lock);
@@ -5435,7 +5533,7 @@ swap_unlock:
return ret;
}
-static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 out_volt)
+static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 req_out_volt)
{
unsigned int target_mw;
int ret;
@@ -5453,13 +5551,13 @@ static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 out_volt)
goto port_unlock;
}
- if (out_volt < port->pps_data.min_volt ||
- out_volt > port->pps_data.max_volt) {
+ if (req_out_volt < port->pps_data.min_volt ||
+ req_out_volt > port->pps_data.max_volt) {
ret = -EINVAL;
goto port_unlock;
}
- target_mw = (port->pps_data.op_curr * out_volt) / 1000;
+ target_mw = (port->current_limit * req_out_volt) / 1000;
if (target_mw < port->operating_snk_mw) {
ret = -EINVAL;
goto port_unlock;
@@ -5473,10 +5571,10 @@ static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 out_volt)
}
/* Round down output voltage to align with PPS valid steps */
- out_volt = out_volt - (out_volt % RDO_PROG_VOLT_MV_STEP);
+ req_out_volt = req_out_volt - (req_out_volt % RDO_PROG_VOLT_MV_STEP);
reinit_completion(&port->pps_complete);
- port->pps_data.out_volt = out_volt;
+ port->pps_data.req_out_volt = req_out_volt;
port->pps_status = 0;
port->pps_pending = true;
mutex_unlock(&port->lock);
@@ -5534,8 +5632,8 @@ static int tcpm_pps_activate(struct tcpm_port *port, bool activate)
/* Trigger PPS request or move back to standard PDO contract */
if (activate) {
- port->pps_data.out_volt = port->supply_voltage;
- port->pps_data.op_curr = port->current_limit;
+ port->pps_data.req_out_volt = port->supply_voltage;
+ port->pps_data.req_op_curr = port->current_limit;
}
mutex_unlock(&port->lock);
@@ -5675,6 +5773,7 @@ static int tcpm_fw_get_caps(struct tcpm_port *port,
port->typec_caps.type = ret;
port->port_type = port->typec_caps.type;
+ port->slow_charger_loop = fwnode_property_read_bool(fwnode, "slow-charger-loop");
if (port->port_type == TYPEC_PORT_SNK)
goto sink;
@@ -6072,6 +6171,10 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
goto out_role_sw_put;
}
+ typec_port_register_altmodes(port->typec_port,
+ &tcpm_altmode_ops, port,
+ port->port_altmode, ALTMODE_DISCOVERY_MAX);
+
mutex_lock(&port->lock);
tcpm_init(port);
mutex_unlock(&port->lock);
diff --git a/drivers/usb/typec/tipd/Kconfig b/drivers/usb/typec/tipd/Kconfig
new file mode 100644
index 000000000000..b82715293072
--- /dev/null
+++ b/drivers/usb/typec/tipd/Kconfig
@@ -0,0 +1,12 @@
+config TYPEC_TPS6598X
+ tristate "TI TPS6598x USB Power Delivery controller driver"
+ depends on I2C
+ select POWER_SUPPLY
+ select REGMAP_I2C
+ select USB_ROLE_SWITCH
+ help
+ Say Y or M here if your system has TI TPS65982 or TPS65983 USB Power
+ Delivery controller.
+
+ If you choose to build this driver as a dynamically linked module, the
+ module will be called tps6598x.ko.
diff --git a/drivers/usb/typec/tipd/Makefile b/drivers/usb/typec/tipd/Makefile
new file mode 100644
index 000000000000..aa439f80a889
--- /dev/null
+++ b/drivers/usb/typec/tipd/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS_trace.o := -I$(src)
+
+obj-$(CONFIG_TYPEC_TPS6598X) += tps6598x.o
+tps6598x-y := core.o
+tps6598x-$(CONFIG_TRACING) += trace.o
diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tipd/core.c
index 29bd1c5a283c..938219bc1b4b 100644
--- a/drivers/usb/typec/tps6598x.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -15,6 +15,9 @@
#include <linux/usb/typec.h>
#include <linux/usb/role.h>
+#include "tps6598x.h"
+#include "trace.h"
+
/* Register offsets */
#define TPS_REG_VID 0x00
#define TPS_REG_MODE 0x03
@@ -31,16 +34,7 @@
#define TPS_REG_CTRL_CONF 0x29
#define TPS_REG_POWER_STATUS 0x3f
#define TPS_REG_RX_IDENTITY_SOP 0x48
-
-/* TPS_REG_INT_* bits */
-#define TPS_REG_INT_PLUG_EVENT BIT(3)
-
-/* TPS_REG_STATUS bits */
-#define TPS_STATUS_PLUG_PRESENT BIT(0)
-#define TPS_STATUS_ORIENTATION BIT(4)
-#define TPS_STATUS_PORTROLE(s) (!!((s) & BIT(5)))
-#define TPS_STATUS_DATAROLE(s) (!!((s) & BIT(6)))
-#define TPS_STATUS_VCONN(s) (!!((s) & BIT(7)))
+#define TPS_REG_DATA_STATUS 0x5f
/* TPS_REG_SYSTEM_CONF bits */
#define TPS_SYSCONF_PORTINFO(c) ((c) & 7)
@@ -55,11 +49,6 @@ enum {
TPS_PORTINFO_SOURCE,
};
-/* TPS_REG_POWER_STATUS bits */
-#define TPS_POWER_STATUS_CONNECTION BIT(0)
-#define TPS_POWER_STATUS_SOURCESINK BIT(1)
-#define TPS_POWER_STATUS_PWROPMODE(p) (((p) & GENMASK(3, 2)) >> 2)
-
/* TPS_REG_RX_IDENTITY_SOP */
struct tps6598x_rx_identity_reg {
u8 status;
@@ -255,9 +244,9 @@ static int tps6598x_connect(struct tps6598x *tps, u32 status)
}
typec_set_pwr_opmode(tps->port, mode);
- typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status));
- typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status));
- tps6598x_set_data_role(tps, TPS_STATUS_DATAROLE(status), true);
+ typec_set_pwr_role(tps->port, TPS_STATUS_TO_TYPEC_PORTROLE(status));
+ typec_set_vconn_role(tps->port, TPS_STATUS_TO_TYPEC_VCONN(status));
+ tps6598x_set_data_role(tps, TPS_STATUS_TO_TYPEC_DATAROLE(status), true);
tps->partner = typec_register_partner(tps->port, &desc);
if (IS_ERR(tps->partner))
@@ -277,9 +266,10 @@ static void tps6598x_disconnect(struct tps6598x *tps, u32 status)
typec_unregister_partner(tps->partner);
tps->partner = NULL;
typec_set_pwr_opmode(tps->port, TYPEC_PWR_MODE_USB);
- typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status));
- typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status));
- tps6598x_set_data_role(tps, TPS_STATUS_DATAROLE(status), false);
+ typec_set_pwr_role(tps->port, TPS_STATUS_TO_TYPEC_PORTROLE(status));
+ typec_set_vconn_role(tps->port, TPS_STATUS_TO_TYPEC_VCONN(status));
+ tps6598x_set_data_role(tps, TPS_STATUS_TO_TYPEC_DATAROLE(status), false);
+
power_supply_changed(tps->psy);
}
@@ -363,7 +353,7 @@ static int tps6598x_dr_set(struct typec_port *port, enum typec_data_role role)
if (ret)
goto out_unlock;
- if (role != TPS_STATUS_DATAROLE(status)) {
+ if (role != TPS_STATUS_TO_TYPEC_DATAROLE(status)) {
ret = -EPROTO;
goto out_unlock;
}
@@ -393,7 +383,7 @@ static int tps6598x_pr_set(struct typec_port *port, enum typec_role role)
if (ret)
goto out_unlock;
- if (role != TPS_STATUS_PORTROLE(status)) {
+ if (role != TPS_STATUS_TO_TYPEC_PORTROLE(status)) {
ret = -EPROTO;
goto out_unlock;
}
@@ -416,7 +406,8 @@ static irqreturn_t tps6598x_interrupt(int irq, void *data)
struct tps6598x *tps = data;
u64 event1;
u64 event2;
- u32 status;
+ u32 status, data_status;
+ u16 pwr_status;
int ret;
mutex_lock(&tps->lock);
@@ -427,12 +418,32 @@ static irqreturn_t tps6598x_interrupt(int irq, void *data)
dev_err(tps->dev, "%s: failed to read events\n", __func__);
goto err_unlock;
}
+ trace_tps6598x_irq(event1, event2);
ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
if (ret) {
dev_err(tps->dev, "%s: failed to read status\n", __func__);
goto err_clear_ints;
}
+ trace_tps6598x_status(status);
+
+ if ((event1 | event2) & TPS_REG_INT_POWER_STATUS_UPDATE) {
+ ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &pwr_status);
+ if (ret < 0) {
+ dev_err(tps->dev, "failed to read power status: %d\n", ret);
+ goto err_clear_ints;
+ }
+ trace_tps6598x_power_status(pwr_status);
+ }
+
+ if ((event1 | event2) & TPS_REG_INT_DATA_STATUS_UPDATE) {
+ ret = tps6598x_read32(tps, TPS_REG_DATA_STATUS, &data_status);
+ if (ret < 0) {
+ dev_err(tps->dev, "failed to read data status: %d\n", ret);
+ goto err_clear_ints;
+ }
+ trace_tps6598x_data_status(data_status);
+ }
/* Handle plug insert or removal */
if ((event1 | event2) & TPS_REG_INT_PLUG_EVENT) {
@@ -498,8 +509,8 @@ static int tps6598x_psy_get_online(struct tps6598x *tps,
if (ret < 0)
return ret;
- if ((pwr_status & TPS_POWER_STATUS_CONNECTION) &&
- (pwr_status & TPS_POWER_STATUS_SOURCESINK)) {
+ if (TPS_POWER_STATUS_CONNECTION(pwr_status) &&
+ TPS_POWER_STATUS_SOURCESINK(pwr_status)) {
val->intval = 1;
} else {
val->intval = 0;
@@ -608,14 +619,15 @@ static int tps6598x_probe(struct i2c_client *client)
ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
if (ret < 0)
return ret;
+ trace_tps6598x_status(status);
ret = tps6598x_read32(tps, TPS_REG_SYSTEM_CONF, &conf);
if (ret < 0)
return ret;
fwnode = device_get_named_child_node(&client->dev, "connector");
- if (IS_ERR(fwnode))
- return PTR_ERR(fwnode);
+ if (!fwnode)
+ return -ENODEV;
tps->role_sw = fwnode_usb_role_switch_get(fwnode);
if (IS_ERR(tps->role_sw)) {
diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h
new file mode 100644
index 000000000000..003a577be216
--- /dev/null
+++ b/drivers/usb/typec/tipd/tps6598x.h
@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Driver for TI TPS6598x USB Power Delivery controller family
+ *
+ * Copyright (C) 2017, Intel Corporation
+ * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ */
+
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+
+#ifndef __TPS6598X_H__
+#define __TPS6598X_H__
+
+#define TPS_FIELD_GET(_mask, _reg) ((typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask)))
+
+/* TPS_REG_STATUS bits */
+#define TPS_STATUS_PLUG_PRESENT BIT(0)
+#define TPS_STATUS_PLUG_UPSIDE_DOWN BIT(4)
+#define TPS_STATUS_PORTROLE BIT(5)
+#define TPS_STATUS_TO_TYPEC_PORTROLE(s) (!!((s) & TPS_STATUS_PORTROLE))
+#define TPS_STATUS_DATAROLE BIT(6)
+#define TPS_STATUS_TO_TYPEC_DATAROLE(s) (!!((s) & TPS_STATUS_DATAROLE))
+#define TPS_STATUS_VCONN BIT(7)
+#define TPS_STATUS_TO_TYPEC_VCONN(s) (!!((s) & TPS_STATUS_VCONN))
+#define TPS_STATUS_OVERCURRENT BIT(16)
+#define TPS_STATUS_GOTO_MIN_ACTIVE BIT(26)
+#define TPS_STATUS_BIST BIT(27)
+#define TPS_STATUS_HIGH_VOLAGE_WARNING BIT(28)
+#define TPS_STATUS_HIGH_LOW_VOLTAGE_WARNING BIT(29)
+
+#define TPS_STATUS_CONN_STATE_MASK GENMASK(3, 1)
+#define TPS_STATUS_CONN_STATE(x) TPS_FIELD_GET(TPS_STATUS_CONN_STATE_MASK, (x))
+#define TPS_STATUS_PP_5V0_SWITCH_MASK GENMASK(9, 8)
+#define TPS_STATUS_PP_5V0_SWITCH(x) TPS_FIELD_GET(TPS_STATUS_PP_5V0_SWITCH_MASK, (x))
+#define TPS_STATUS_PP_HV_SWITCH_MASK GENMASK(11, 10)
+#define TPS_STATUS_PP_HV_SWITCH(x) TPS_FIELD_GET(TPS_STATUS_PP_HV_SWITCH_MASK, (x))
+#define TPS_STATUS_PP_EXT_SWITCH_MASK GENMASK(13, 12)
+#define TPS_STATUS_PP_EXT_SWITCH(x) TPS_FIELD_GET(TPS_STATUS_PP_EXT_SWITCH_MASK, (x))
+#define TPS_STATUS_PP_CABLE_SWITCH_MASK GENMASK(15, 14)
+#define TPS_STATUS_PP_CABLE_SWITCH(x) TPS_FIELD_GET(TPS_STATUS_PP_CABLE_SWITCH_MASK, (x))
+#define TPS_STATUS_POWER_SOURCE_MASK GENMASK(19, 18)
+#define TPS_STATUS_POWER_SOURCE(x) TPS_FIELD_GET(TPS_STATUS_POWER_SOURCE_MASK, (x))
+#define TPS_STATUS_VBUS_STATUS_MASK GENMASK(21, 20)
+#define TPS_STATUS_VBUS_STATUS(x) TPS_FIELD_GET(TPS_STATUS_VBUS_STATUS_MASK, (x))
+#define TPS_STATUS_USB_HOST_PRESENT_MASK GENMASK(23, 22)
+#define TPS_STATUS_USB_HOST_PRESENT(x) TPS_FIELD_GET(TPS_STATUS_USB_HOST_PRESENT_MASK, (x))
+#define TPS_STATUS_LEGACY_MASK GENMASK(25, 24)
+#define TPS_STATUS_LEGACY(x) TPS_FIELD_GET(TPS_STATUS_LEGACY_MASK, (x))
+
+#define TPS_STATUS_CONN_STATE_NO_CONN 0
+#define TPS_STATUS_CONN_STATE_DISABLED 1
+#define TPS_STATUS_CONN_STATE_AUDIO_CONN 2
+#define TPS_STATUS_CONN_STATE_DEBUG_CONN 3
+#define TPS_STATUS_CONN_STATE_NO_CONN_R_A 4
+#define TPS_STATUS_CONN_STATE_RESERVED 5
+#define TPS_STATUS_CONN_STATE_CONN_NO_R_A 6
+#define TPS_STATUS_CONN_STATE_CONN_WITH_R_A 7
+
+#define TPS_STATUS_PP_SWITCH_STATE_DISABLED 0
+#define TPS_STATUS_PP_SWITCH_STATE_FAULT 1
+#define TPS_STATUS_PP_SWITCH_STATE_OUT 2
+#define TPS_STATUS_PP_SWITCH_STATE_IN 3
+
+#define TPS_STATUS_POWER_SOURCE_UNKNOWN 0
+#define TPS_STATUS_POWER_SOURCE_VIN_3P3 1
+#define TPS_STATUS_POWER_SOURCE_DEAD_BAT 2
+#define TPS_STATUS_POWER_SOURCE_VBUS 3
+
+#define TPS_STATUS_VBUS_STATUS_VSAFE0V 0
+#define TPS_STATUS_VBUS_STATUS_VSAFE5V 1
+#define TPS_STATUS_VBUS_STATUS_PD 2
+#define TPS_STATUS_VBUS_STATUS_FAULT 3
+
+#define TPS_STATUS_USB_HOST_PRESENT_NO 0
+#define TPS_STATUS_USB_HOST_PRESENT_PD_NO_USB 1
+#define TPS_STATUS_USB_HOST_PRESENT_NO_PD 2
+#define TPS_STATUS_USB_HOST_PRESENT_PD_USB 3
+
+#define TPS_STATUS_LEGACY_NO 0
+#define TPS_STATUS_LEGACY_SINK 1
+#define TPS_STATUS_LEGACY_SOURCE 2
+
+/* TPS_REG_INT_* bits */
+#define TPS_REG_INT_USER_VID_ALT_MODE_OTHER_VDM BIT_ULL(27+32)
+#define TPS_REG_INT_USER_VID_ALT_MODE_ATTN_VDM BIT_ULL(26+32)
+#define TPS_REG_INT_USER_VID_ALT_MODE_EXIT BIT_ULL(25+32)
+#define TPS_REG_INT_USER_VID_ALT_MODE_ENTERED BIT_ULL(24+32)
+#define TPS_REG_INT_EXIT_MODES_COMPLETE BIT_ULL(20+32)
+#define TPS_REG_INT_DISCOVER_MODES_COMPLETE BIT_ULL(19+32)
+#define TPS_REG_INT_VDM_MSG_SENT BIT_ULL(18+32)
+#define TPS_REG_INT_VDM_ENTERED_MODE BIT_ULL(17+32)
+#define TPS_REG_INT_ERROR_UNABLE_TO_SOURCE BIT_ULL(14+32)
+#define TPS_REG_INT_SRC_TRANSITION BIT_ULL(10+32)
+#define TPS_REG_INT_ERROR_DISCHARGE_FAILED BIT_ULL(9+32)
+#define TPS_REG_INT_ERROR_MESSAGE_DATA BIT_ULL(7+32)
+#define TPS_REG_INT_ERROR_PROTOCOL_ERROR BIT_ULL(6+32)
+#define TPS_REG_INT_ERROR_MISSING_GET_CAP_MESSAGE BIT_ULL(4+32)
+#define TPS_REG_INT_ERROR_POWER_EVENT_OCCURRED BIT_ULL(3+32)
+#define TPS_REG_INT_ERROR_CAN_PROVIDE_PWR_LATER BIT_ULL(2+32)
+#define TPS_REG_INT_ERROR_CANNOT_PROVIDE_PWR BIT_ULL(1+32)
+#define TPS_REG_INT_ERROR_DEVICE_INCOMPATIBLE BIT_ULL(0+32)
+#define TPS_REG_INT_CMD2_COMPLETE BIT(31)
+#define TPS_REG_INT_CMD1_COMPLETE BIT(30)
+#define TPS_REG_INT_ADC_HIGH_THRESHOLD BIT(29)
+#define TPS_REG_INT_ADC_LOW_THRESHOLD BIT(28)
+#define TPS_REG_INT_PD_STATUS_UPDATE BIT(27)
+#define TPS_REG_INT_STATUS_UPDATE BIT(26)
+#define TPS_REG_INT_DATA_STATUS_UPDATE BIT(25)
+#define TPS_REG_INT_POWER_STATUS_UPDATE BIT(24)
+#define TPS_REG_INT_PP_SWITCH_CHANGED BIT(23)
+#define TPS_REG_INT_HIGH_VOLTAGE_WARNING BIT(22)
+#define TPS_REG_INT_USB_HOST_PRESENT_NO_LONGER BIT(21)
+#define TPS_REG_INT_USB_HOST_PRESENT BIT(20)
+#define TPS_REG_INT_GOTO_MIN_RECEIVED BIT(19)
+#define TPS_REG_INT_PR_SWAP_REQUESTED BIT(17)
+#define TPS_REG_INT_SINK_CAP_MESSAGE_READY BIT(15)
+#define TPS_REG_INT_SOURCE_CAP_MESSAGE_READY BIT(14)
+#define TPS_REG_INT_NEW_CONTRACT_AS_PROVIDER BIT(13)
+#define TPS_REG_INT_NEW_CONTRACT_AS_CONSUMER BIT(12)
+#define TPS_REG_INT_VDM_RECEIVED BIT(11)
+#define TPS_REG_INT_ATTENTION_RECEIVED BIT(10)
+#define TPS_REG_INT_OVERCURRENT BIT(9)
+#define TPS_REG_INT_BIST BIT(8)
+#define TPS_REG_INT_RDO_RECEIVED_FROM_SINK BIT(7)
+#define TPS_REG_INT_DR_SWAP_COMPLETE BIT(5)
+#define TPS_REG_INT_PR_SWAP_COMPLETE BIT(4)
+#define TPS_REG_INT_PLUG_EVENT BIT(3)
+#define TPS_REG_INT_HARD_RESET BIT(1)
+#define TPS_REG_INT_PD_SOFT_RESET BIT(0)
+
+/* TPS_REG_POWER_STATUS bits */
+#define TPS_POWER_STATUS_CONNECTION(x) TPS_FIELD_GET(BIT(0), (x))
+#define TPS_POWER_STATUS_SOURCESINK(x) TPS_FIELD_GET(BIT(1), (x))
+#define TPS_POWER_STATUS_BC12_DET(x) TPS_FIELD_GET(BIT(2), (x))
+
+#define TPS_POWER_STATUS_TYPEC_CURRENT_MASK GENMASK(3, 2)
+#define TPS_POWER_STATUS_PWROPMODE(p) TPS_FIELD_GET(TPS_POWER_STATUS_TYPEC_CURRENT_MASK, (p))
+#define TPS_POWER_STATUS_BC12_STATUS_MASK GENMASK(6, 5)
+#define TPS_POWER_STATUS_BC12_STATUS(p) TPS_FIELD_GET(TPS_POWER_STATUS_BC12_STATUS_MASK, (p))
+
+#define TPS_POWER_STATUS_TYPEC_CURRENT_USB 0
+#define TPS_POWER_STATUS_TYPEC_CURRENT_1A5 1
+#define TPS_POWER_STATUS_TYPEC_CURRENT_3A0 2
+#define TPS_POWER_STATUS_TYPEC_CURRENT_PD 3
+
+#define TPS_POWER_STATUS_BC12_STATUS_SDP 0
+#define TPS_POWER_STATUS_BC12_STATUS_CDP 2
+#define TPS_POWER_STATUS_BC12_STATUS_DCP 3
+
+/* TPS_REG_DATA_STATUS bits */
+#define TPS_DATA_STATUS_DATA_CONNECTION BIT(0)
+#define TPS_DATA_STATUS_UPSIDE_DOWN BIT(1)
+#define TPS_DATA_STATUS_ACTIVE_CABLE BIT(2)
+#define TPS_DATA_STATUS_USB2_CONNECTION BIT(4)
+#define TPS_DATA_STATUS_USB3_CONNECTION BIT(5)
+#define TPS_DATA_STATUS_USB3_GEN2 BIT(6)
+#define TPS_DATA_STATUS_USB_DATA_ROLE BIT(7)
+#define TPS_DATA_STATUS_DP_CONNECTION BIT(8)
+#define TPS_DATA_STATUS_DP_SINK BIT(9)
+#define TPS_DATA_STATUS_TBT_CONNECTION BIT(16)
+#define TPS_DATA_STATUS_TBT_TYPE BIT(17)
+#define TPS_DATA_STATUS_OPTICAL_CABLE BIT(18)
+#define TPS_DATA_STATUS_ACTIVE_LINK_TRAIN BIT(20)
+#define TPS_DATA_STATUS_FORCE_LSX BIT(23)
+#define TPS_DATA_STATUS_POWER_MISMATCH BIT(24)
+
+#define TPS_DATA_STATUS_DP_PIN_ASSIGNMENT_MASK GENMASK(11, 10)
+#define TPS_DATA_STATUS_DP_PIN_ASSIGNMENT(x) \
+ TPS_FIELD_GET(TPS_DATA_STATUS_DP_PIN_ASSIGNMENT_MASK, (x))
+#define TPS_DATA_STATUS_TBT_CABLE_SPEED_MASK GENMASK(27, 25)
+#define TPS_DATA_STATUS_TBT_CABLE_SPEED \
+ TPS_FIELD_GET(TPS_DATA_STATUS_TBT_CABLE_SPEED_MASK, (x))
+#define TPS_DATA_STATUS_TBT_CABLE_GEN_MASK GENMASK(29, 28)
+#define TPS_DATA_STATUS_TBT_CABLE_GEN \
+ TPS_FIELD_GET(TPS_DATA_STATUS_TBT_CABLE_GEN_MASK, (x))
+
+/* Map data status to DP spec assignments */
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT(x) \
+ ((TPS_DATA_STATUS_DP_PIN_ASSIGNMENT(x) << 1) | \
+ TPS_FIELD_GET(TPS_DATA_STATUS_USB3_CONNECTION, (x)))
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_E 0
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_F BIT(0)
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_C BIT(1)
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_D (BIT(1) | BIT(0))
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_A BIT(2)
+#define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_B (BIT(2) | BIT(1))
+
+#endif /* __TPS6598X_H__ */
diff --git a/drivers/usb/typec/tipd/trace.c b/drivers/usb/typec/tipd/trace.c
new file mode 100644
index 000000000000..016e68048dc2
--- /dev/null
+++ b/drivers/usb/typec/tipd/trace.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * TI TPS6598x USB Power Delivery Controller Trace Support
+ *
+ * Copyright (C) 2021, Intel Corporation
+ * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ */
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/usb/typec/tipd/trace.h b/drivers/usb/typec/tipd/trace.h
new file mode 100644
index 000000000000..5d09d6f78930
--- /dev/null
+++ b/drivers/usb/typec/tipd/trace.h
@@ -0,0 +1,283 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Driver for TI TPS6598x USB Power Delivery controller family
+ *
+ * Copyright (C) 2020 Purism SPC
+ * Author: Guido Günther <agx@sigxcpu.org>
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM tps6598x
+
+#if !defined(_TPS6598X_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _TPS6598X_TRACE_H_
+
+#include "tps6598x.h"
+
+#include <linux/stringify.h>
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+#define show_irq_flags(flags) \
+ __print_flags_u64(flags, "|", \
+ { TPS_REG_INT_PD_SOFT_RESET, "PD_SOFT_RESET" }, \
+ { TPS_REG_INT_HARD_RESET, "HARD_RESET" }, \
+ { TPS_REG_INT_PLUG_EVENT, "PLUG_EVENT" }, \
+ { TPS_REG_INT_PR_SWAP_COMPLETE, "PR_SWAP_COMPLETE" }, \
+ { TPS_REG_INT_DR_SWAP_COMPLETE, "DR_SWAP_COMPLETE" }, \
+ { TPS_REG_INT_RDO_RECEIVED_FROM_SINK, "RDO_RECEIVED_FROM_SINK" }, \
+ { TPS_REG_INT_BIST, "BIST" }, \
+ { TPS_REG_INT_OVERCURRENT, "OVERCURRENT" }, \
+ { TPS_REG_INT_ATTENTION_RECEIVED, "ATTENTION_RECEIVED" }, \
+ { TPS_REG_INT_VDM_RECEIVED, "VDM_RECEIVED" }, \
+ { TPS_REG_INT_NEW_CONTRACT_AS_CONSUMER, "NEW_CONTRACT_AS_CONSUMER" }, \
+ { TPS_REG_INT_NEW_CONTRACT_AS_PROVIDER, "NEW_CONTRACT_AS_PROVIDER" }, \
+ { TPS_REG_INT_SOURCE_CAP_MESSAGE_READY, "SOURCE_CAP_MESSAGE_READY" }, \
+ { TPS_REG_INT_SINK_CAP_MESSAGE_READY, "SINK_CAP_MESSAGE_READY" }, \
+ { TPS_REG_INT_PR_SWAP_REQUESTED, "PR_SWAP_REQUESTED" }, \
+ { TPS_REG_INT_GOTO_MIN_RECEIVED, "GOTO_MIN_RECEIVED" }, \
+ { TPS_REG_INT_USB_HOST_PRESENT, "USB_HOST_PRESENT" }, \
+ { TPS_REG_INT_USB_HOST_PRESENT_NO_LONGER, "USB_HOST_PRESENT_NO_LONGER" }, \
+ { TPS_REG_INT_HIGH_VOLTAGE_WARNING, "HIGH_VOLTAGE_WARNING" }, \
+ { TPS_REG_INT_PP_SWITCH_CHANGED, "PP_SWITCH_CHANGED" }, \
+ { TPS_REG_INT_POWER_STATUS_UPDATE, "POWER_STATUS_UPDATE" }, \
+ { TPS_REG_INT_DATA_STATUS_UPDATE, "DATA_STATUS_UPDATE" }, \
+ { TPS_REG_INT_STATUS_UPDATE, "STATUS_UPDATE" }, \
+ { TPS_REG_INT_PD_STATUS_UPDATE, "PD_STATUS_UPDATE" }, \
+ { TPS_REG_INT_ADC_LOW_THRESHOLD, "ADC_LOW_THRESHOLD" }, \
+ { TPS_REG_INT_ADC_HIGH_THRESHOLD, "ADC_HIGH_THRESHOLD" }, \
+ { TPS_REG_INT_CMD1_COMPLETE, "CMD1_COMPLETE" }, \
+ { TPS_REG_INT_CMD2_COMPLETE, "CMD2_COMPLETE" }, \
+ { TPS_REG_INT_ERROR_DEVICE_INCOMPATIBLE, "ERROR_DEVICE_INCOMPATIBLE" }, \
+ { TPS_REG_INT_ERROR_CANNOT_PROVIDE_PWR, "ERROR_CANNOT_PROVIDE_PWR" }, \
+ { TPS_REG_INT_ERROR_CAN_PROVIDE_PWR_LATER, "ERROR_CAN_PROVIDE_PWR_LATER" }, \
+ { TPS_REG_INT_ERROR_POWER_EVENT_OCCURRED, "ERROR_POWER_EVENT_OCCURRED" }, \
+ { TPS_REG_INT_ERROR_MISSING_GET_CAP_MESSAGE, "ERROR_MISSING_GET_CAP_MESSAGE" }, \
+ { TPS_REG_INT_ERROR_PROTOCOL_ERROR, "ERROR_PROTOCOL_ERROR" }, \
+ { TPS_REG_INT_ERROR_MESSAGE_DATA, "ERROR_MESSAGE_DATA" }, \
+ { TPS_REG_INT_ERROR_DISCHARGE_FAILED, "ERROR_DISCHARGE_FAILED" }, \
+ { TPS_REG_INT_SRC_TRANSITION, "SRC_TRANSITION" }, \
+ { TPS_REG_INT_ERROR_UNABLE_TO_SOURCE, "ERROR_UNABLE_TO_SOURCE" }, \
+ { TPS_REG_INT_VDM_ENTERED_MODE, "VDM_ENTERED_MODE" }, \
+ { TPS_REG_INT_VDM_MSG_SENT, "VDM_MSG_SENT" }, \
+ { TPS_REG_INT_DISCOVER_MODES_COMPLETE, "DISCOVER_MODES_COMPLETE" }, \
+ { TPS_REG_INT_EXIT_MODES_COMPLETE, "EXIT_MODES_COMPLETE" }, \
+ { TPS_REG_INT_USER_VID_ALT_MODE_ENTERED, "USER_VID_ALT_MODE_ENTERED" }, \
+ { TPS_REG_INT_USER_VID_ALT_MODE_EXIT, "USER_VID_ALT_MODE_EXIT" }, \
+ { TPS_REG_INT_USER_VID_ALT_MODE_ATTN_VDM, "USER_VID_ALT_MODE_ATTN_VDM" }, \
+ { TPS_REG_INT_USER_VID_ALT_MODE_OTHER_VDM, "USER_VID_ALT_MODE_OTHER_VDM" })
+
+#define TPS6598X_STATUS_FLAGS_MASK (GENMASK(31, 0) ^ (TPS_STATUS_CONN_STATE_MASK | \
+ TPS_STATUS_PP_5V0_SWITCH_MASK | \
+ TPS_STATUS_PP_HV_SWITCH_MASK | \
+ TPS_STATUS_PP_EXT_SWITCH_MASK | \
+ TPS_STATUS_PP_CABLE_SWITCH_MASK | \
+ TPS_STATUS_POWER_SOURCE_MASK | \
+ TPS_STATUS_VBUS_STATUS_MASK | \
+ TPS_STATUS_USB_HOST_PRESENT_MASK | \
+ TPS_STATUS_LEGACY_MASK))
+
+#define show_status_conn_state(status) \
+ __print_symbolic(TPS_STATUS_CONN_STATE((status)), \
+ { TPS_STATUS_CONN_STATE_CONN_WITH_R_A, "conn-Ra" }, \
+ { TPS_STATUS_CONN_STATE_CONN_NO_R_A, "conn-no-Ra" }, \
+ { TPS_STATUS_CONN_STATE_NO_CONN_R_A, "no-conn-Ra" }, \
+ { TPS_STATUS_CONN_STATE_DEBUG_CONN, "debug" }, \
+ { TPS_STATUS_CONN_STATE_AUDIO_CONN, "audio" }, \
+ { TPS_STATUS_CONN_STATE_DISABLED, "disabled" }, \
+ { TPS_STATUS_CONN_STATE_NO_CONN, "no-conn" })
+
+#define show_status_pp_switch_state(status) \
+ __print_symbolic(status, \
+ { TPS_STATUS_PP_SWITCH_STATE_IN, "in" }, \
+ { TPS_STATUS_PP_SWITCH_STATE_OUT, "out" }, \
+ { TPS_STATUS_PP_SWITCH_STATE_FAULT, "fault" }, \
+ { TPS_STATUS_PP_SWITCH_STATE_DISABLED, "off" })
+
+#define show_status_power_sources(status) \
+ __print_symbolic(TPS_STATUS_POWER_SOURCE(status), \
+ { TPS_STATUS_POWER_SOURCE_VBUS, "vbus" }, \
+ { TPS_STATUS_POWER_SOURCE_VIN_3P3, "vin-3p3" }, \
+ { TPS_STATUS_POWER_SOURCE_DEAD_BAT, "dead-battery" }, \
+ { TPS_STATUS_POWER_SOURCE_UNKNOWN, "unknown" })
+
+#define show_status_vbus_status(status) \
+ __print_symbolic(TPS_STATUS_VBUS_STATUS(status), \
+ { TPS_STATUS_VBUS_STATUS_VSAFE0V, "vSafe0V" }, \
+ { TPS_STATUS_VBUS_STATUS_VSAFE5V, "vSafe5V" }, \
+ { TPS_STATUS_VBUS_STATUS_PD, "pd" }, \
+ { TPS_STATUS_VBUS_STATUS_FAULT, "fault" })
+
+#define show_status_usb_host_present(status) \
+ __print_symbolic(TPS_STATUS_USB_HOST_PRESENT(status), \
+ { TPS_STATUS_USB_HOST_PRESENT_PD_USB, "pd-usb" }, \
+ { TPS_STATUS_USB_HOST_PRESENT_NO_PD, "no-pd" }, \
+ { TPS_STATUS_USB_HOST_PRESENT_PD_NO_USB, "pd-no-usb" }, \
+ { TPS_STATUS_USB_HOST_PRESENT_NO, "no" })
+
+#define show_status_legacy(status) \
+ __print_symbolic(TPS_STATUS_LEGACY(status), \
+ { TPS_STATUS_LEGACY_SOURCE, "source" }, \
+ { TPS_STATUS_LEGACY_SINK, "sink" }, \
+ { TPS_STATUS_LEGACY_NO, "no" })
+
+#define show_status_flags(flags) \
+ __print_flags((flags & TPS6598X_STATUS_FLAGS_MASK), "|", \
+ { TPS_STATUS_PLUG_PRESENT, "PLUG_PRESENT" }, \
+ { TPS_STATUS_PLUG_UPSIDE_DOWN, "UPSIDE_DOWN" }, \
+ { TPS_STATUS_PORTROLE, "PORTROLE" }, \
+ { TPS_STATUS_DATAROLE, "DATAROLE" }, \
+ { TPS_STATUS_VCONN, "VCONN" }, \
+ { TPS_STATUS_OVERCURRENT, "OVERCURRENT" }, \
+ { TPS_STATUS_GOTO_MIN_ACTIVE, "GOTO_MIN_ACTIVE" }, \
+ { TPS_STATUS_BIST, "BIST" }, \
+ { TPS_STATUS_HIGH_VOLAGE_WARNING, "HIGH_VOLAGE_WARNING" }, \
+ { TPS_STATUS_HIGH_LOW_VOLTAGE_WARNING, "HIGH_LOW_VOLTAGE_WARNING" })
+
+#define show_power_status_source_sink(power_status) \
+ __print_symbolic(TPS_POWER_STATUS_SOURCESINK(power_status), \
+ { 1, "sink" }, \
+ { 0, "source" })
+
+#define show_power_status_typec_status(power_status) \
+ __print_symbolic(TPS_POWER_STATUS_PWROPMODE(power_status), \
+ { TPS_POWER_STATUS_TYPEC_CURRENT_PD, "pd" }, \
+ { TPS_POWER_STATUS_TYPEC_CURRENT_3A0, "3.0A" }, \
+ { TPS_POWER_STATUS_TYPEC_CURRENT_1A5, "1.5A" }, \
+ { TPS_POWER_STATUS_TYPEC_CURRENT_USB, "usb" })
+
+#define show_power_status_bc12_status(power_status) \
+ __print_symbolic(TPS_POWER_STATUS_BC12_STATUS(power_status), \
+ { TPS_POWER_STATUS_BC12_STATUS_DCP, "dcp" }, \
+ { TPS_POWER_STATUS_BC12_STATUS_CDP, "cdp" }, \
+ { TPS_POWER_STATUS_BC12_STATUS_SDP, "sdp" })
+
+#define TPS_DATA_STATUS_FLAGS_MASK (GENMASK(31, 0) ^ (TPS_DATA_STATUS_DP_PIN_ASSIGNMENT_MASK | \
+ TPS_DATA_STATUS_TBT_CABLE_SPEED_MASK | \
+ TPS_DATA_STATUS_TBT_CABLE_GEN_MASK))
+
+#define show_data_status_flags(data_status) \
+ __print_flags(data_status & TPS_DATA_STATUS_FLAGS_MASK, "|", \
+ { TPS_DATA_STATUS_DATA_CONNECTION, "DATA_CONNECTION" }, \
+ { TPS_DATA_STATUS_UPSIDE_DOWN, "DATA_UPSIDE_DOWN" }, \
+ { TPS_DATA_STATUS_ACTIVE_CABLE, "ACTIVE_CABLE" }, \
+ { TPS_DATA_STATUS_USB2_CONNECTION, "USB2_CONNECTION" }, \
+ { TPS_DATA_STATUS_USB3_CONNECTION, "USB3_CONNECTION" }, \
+ { TPS_DATA_STATUS_USB3_GEN2, "USB3_GEN2" }, \
+ { TPS_DATA_STATUS_USB_DATA_ROLE, "USB_DATA_ROLE" }, \
+ { TPS_DATA_STATUS_DP_CONNECTION, "DP_CONNECTION" }, \
+ { TPS_DATA_STATUS_DP_SINK, "DP_SINK" }, \
+ { TPS_DATA_STATUS_TBT_CONNECTION, "TBT_CONNECTION" }, \
+ { TPS_DATA_STATUS_TBT_TYPE, "TBT_TYPE" }, \
+ { TPS_DATA_STATUS_OPTICAL_CABLE, "OPTICAL_CABLE" }, \
+ { TPS_DATA_STATUS_ACTIVE_LINK_TRAIN, "ACTIVE_LINK_TRAIN" }, \
+ { TPS_DATA_STATUS_FORCE_LSX, "FORCE_LSX" }, \
+ { TPS_DATA_STATUS_POWER_MISMATCH, "POWER_MISMATCH" })
+
+#define show_data_status_dp_pin_assignment(data_status) \
+ __print_symbolic(TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT(data_status), \
+ { TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_E, "E" }, \
+ { TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_F, "F" }, \
+ { TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_C, "C" }, \
+ { TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_D, "D" }, \
+ { TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_A, "A" }, \
+ { TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_B, "B" })
+
+#define maybe_show_data_status_dp_pin_assignment(data_status) \
+ (data_status & TPS_DATA_STATUS_DP_CONNECTION ? \
+ show_data_status_dp_pin_assignment(data_status) : "")
+
+TRACE_EVENT(tps6598x_irq,
+ TP_PROTO(u64 event1,
+ u64 event2),
+ TP_ARGS(event1, event2),
+
+ TP_STRUCT__entry(
+ __field(u64, event1)
+ __field(u64, event2)
+ ),
+
+ TP_fast_assign(
+ __entry->event1 = event1;
+ __entry->event2 = event2;
+ ),
+
+ TP_printk("event1=%s, event2=%s",
+ show_irq_flags(__entry->event1),
+ show_irq_flags(__entry->event2))
+);
+
+TRACE_EVENT(tps6598x_status,
+ TP_PROTO(u32 status),
+ TP_ARGS(status),
+
+ TP_STRUCT__entry(
+ __field(u32, status)
+ ),
+
+ TP_fast_assign(
+ __entry->status = status;
+ ),
+
+ TP_printk("conn: %s, pp_5v0: %s, pp_hv: %s, pp_ext: %s, pp_cable: %s, "
+ "pwr-src: %s, vbus: %s, usb-host: %s, legacy: %s, flags: %s",
+ show_status_conn_state(__entry->status),
+ show_status_pp_switch_state(TPS_STATUS_PP_5V0_SWITCH(__entry->status)),
+ show_status_pp_switch_state(TPS_STATUS_PP_HV_SWITCH(__entry->status)),
+ show_status_pp_switch_state(TPS_STATUS_PP_EXT_SWITCH(__entry->status)),
+ show_status_pp_switch_state(TPS_STATUS_PP_CABLE_SWITCH(__entry->status)),
+ show_status_power_sources(__entry->status),
+ show_status_vbus_status(__entry->status),
+ show_status_usb_host_present(__entry->status),
+ show_status_legacy(__entry->status),
+ show_status_flags(__entry->status)
+ )
+);
+
+TRACE_EVENT(tps6598x_power_status,
+ TP_PROTO(u16 power_status),
+ TP_ARGS(power_status),
+
+ TP_STRUCT__entry(
+ __field(u16, power_status)
+ ),
+
+ TP_fast_assign(
+ __entry->power_status = power_status;
+ ),
+
+ TP_printk("conn: %d, pwr-role: %s, typec: %s, bc: %s",
+ !!TPS_POWER_STATUS_CONNECTION(__entry->power_status),
+ show_power_status_source_sink(__entry->power_status),
+ show_power_status_typec_status(__entry->power_status),
+ show_power_status_bc12_status(__entry->power_status)
+ )
+);
+
+TRACE_EVENT(tps6598x_data_status,
+ TP_PROTO(u32 data_status),
+ TP_ARGS(data_status),
+
+ TP_STRUCT__entry(
+ __field(u32, data_status)
+ ),
+
+ TP_fast_assign(
+ __entry->data_status = data_status;
+ ),
+
+ TP_printk("%s%s%s",
+ show_data_status_flags(__entry->data_status),
+ __entry->data_status & TPS_DATA_STATUS_DP_CONNECTION ? ", DP pinout " : "",
+ maybe_show_data_status_dp_pin_assignment(__entry->data_status)
+ )
+);
+
+#endif /* _TPS6598X_TRACE_H_ */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#include <trace/define_trace.h>
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 244270755ae6..282c3c825c13 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -63,7 +63,7 @@ static int ucsi_read_error(struct ucsi *ucsi)
u16 error;
int ret;
- /* Acknowlege the command that failed */
+ /* Acknowledge the command that failed */
ret = ucsi_acknowledge_command(ucsi);
if (ret)
return ret;
diff --git a/drivers/usb/usbip/usbip_common.h b/drivers/usb/usbip/usbip_common.h
index ea2a20e6d27d..d8cbd2dfc2c2 100644
--- a/drivers/usb/usbip/usbip_common.h
+++ b/drivers/usb/usbip/usbip_common.h
@@ -18,6 +18,7 @@
#include <linux/usb.h>
#include <linux/wait.h>
#include <linux/sched/task.h>
+#include <linux/kcov.h>
#include <uapi/linux/usbip.h>
#undef pr_fmt
diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c
index f7633ee655a1..d1cf6b51bf85 100644
--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -156,12 +156,14 @@ static ssize_t usbip_sockfd_store(struct device *dev,
tcp_rx = kthread_create(&v_rx_loop, &udc->ud, "vudc_rx");
if (IS_ERR(tcp_rx)) {
sockfd_put(socket);
+ mutex_unlock(&udc->ud.sysfs_lock);
return -EINVAL;
}
tcp_tx = kthread_create(&v_tx_loop, &udc->ud, "vudc_tx");
if (IS_ERR(tcp_tx)) {
kthread_stop(tcp_rx);
sockfd_put(socket);
+ mutex_unlock(&udc->ud.sysfs_lock);
return -EINVAL;
}