diff options
author | Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> | 2014-05-20 18:30:09 +0200 |
---|---|---|
committer | Felipe Balbi <balbi@ti.com> | 2014-06-30 19:33:34 +0200 |
commit | fae3c158800339765a2580ac5d6236ae116ec5cb (patch) | |
tree | 09dd0b63df391f85fa34b9c80105a9132ac8441e /drivers/usb | |
parent | usb: gadget: net2280: Refactor queues_show (diff) | |
download | linux-fae3c158800339765a2580ac5d6236ae116ec5cb.tar.xz linux-fae3c158800339765a2580ac5d6236ae116ec5cb.zip |
usb: gadget: net2280: Pass checkpacth.pl test
Fix Code Style using checkpatch.pl criteria
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/gadget/net2280.c | 1119 | ||||
-rw-r--r-- | drivers/usb/gadget/net2280.h | 90 |
2 files changed, 602 insertions, 607 deletions
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index c3205ec9560c..d1d4f4fc9da7 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -62,9 +62,9 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/prefetch.h> +#include <linux/io.h> #include <asm/byteorder.h> -#include <asm/io.h> #include <asm/irq.h> #include <asm/unaligned.h> @@ -76,12 +76,12 @@ #define USE_RDK_LEDS /* GPIO pins control three LEDs */ -static const char driver_name [] = "net2280"; -static const char driver_desc [] = DRIVER_DESC; +static const char driver_name[] = "net2280"; +static const char driver_desc[] = DRIVER_DESC; static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 }; -static const char ep0name [] = "ep0"; -static const char *const ep_name [] = { +static const char ep0name[] = "ep0"; +static const char *const ep_name[] = { ep0name, "ep-a", "ep-b", "ep-c", "ep-d", "ep-e", "ep-f", "ep-g", "ep-h", @@ -100,15 +100,15 @@ static bool use_dma_chaining; static bool use_msi = true; /* "modprobe net2280 use_dma=n" etc */ -module_param (use_dma, bool, S_IRUGO); -module_param (use_dma_chaining, bool, S_IRUGO); +module_param(use_dma, bool, S_IRUGO); +module_param(use_dma_chaining, bool, S_IRUGO); module_param(use_msi, bool, S_IRUGO); /* mode 0 == ep-{a,b,c,d} 1K fifo each * mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable * mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable */ -static ushort fifo_mode = 0; +static ushort fifo_mode; /* "modprobe net2280 fifo_mode=1" etc */ module_param (fifo_mode, ushort, 0644); @@ -121,7 +121,7 @@ module_param (fifo_mode, ushort, 0644); static bool enable_suspend; /* "modprobe net2280 enable_suspend=1" etc */ -module_param (enable_suspend, bool, S_IRUGO); +module_param(enable_suspend, bool, S_IRUGO); /* force full-speed operation */ static bool full_speed; @@ -130,8 +130,7 @@ MODULE_PARM_DESC(full_speed, "force full-speed mode -- for testing only!"); #define DIR_STRING(bAddress) (((bAddress) & USB_DIR_IN) ? "in" : "out") -#if defined(CONFIG_USB_GADGET_DEBUG_FILES) || defined (DEBUG) -static char *type_string (u8 bmAttributes) +static char *type_string(u8 bmAttributes) { switch ((bmAttributes) & USB_ENDPOINT_XFERTYPE_MASK) { case USB_ENDPOINT_XFER_BULK: return "bulk"; @@ -140,7 +139,6 @@ static char *type_string (u8 bmAttributes) } return "control"; } -#endif #include "net2280.h" @@ -162,7 +160,7 @@ static inline void enable_pciirqenb(struct net2280_ep *ep) } static int -net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) +net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { struct net2280 *dev; struct net2280_ep *ep; @@ -170,7 +168,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) unsigned long flags; static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 }; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || !desc || ep->desc || _ep->name == ep0name || desc->bDescriptorType != USB_DT_ENDPOINT) return -EINVAL; @@ -191,12 +189,12 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) } /* sanity check ep-e/ep-f since their fifos are small */ - max = usb_endpoint_maxp (desc) & 0x1fff; + max = usb_endpoint_maxp(desc) & 0x1fff; if (ep->num > 4 && max > 64 && (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY)) return -ERANGE; - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->lock, flags); _ep->maxpacket = max & 0x7ff; ep->desc = desc; @@ -212,7 +210,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) * use it instead of troublesome (non-bulk) multi-packet DMA. */ if (ep->dma && (max % 4) != 0 && use_dma_chaining) { - DEBUG (ep->dev, "%s, no dma for maxpacket %d\n", + DEBUG(ep->dev, "%s, no dma for maxpacket %d\n", ep->ep.name, ep->ep.maxpacket); ep->dma = NULL; } @@ -236,7 +234,7 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) return -ERANGE; } } - ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC) ? 1 : 0; + ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC); /* Enable this endpoint */ if (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY) { tmp <<= ENDPOINT_TYPE; @@ -285,12 +283,12 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) tmp = BIT(DATA_PACKET_RECEIVED_INTERRUPT_ENABLE) | BIT(DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE); if (dev->pdev->device == 0x2280) - tmp |= readl (&ep->regs->ep_irqenb); - writel (tmp, &ep->regs->ep_irqenb); + tmp |= readl(&ep->regs->ep_irqenb); + writel(tmp, &ep->regs->ep_irqenb); } else { /* dma, per-request */ tmp = BIT((8 + ep->num)); /* completion */ - tmp |= readl (&dev->regs->pciirqenb1); - writel (tmp, &dev->regs->pciirqenb1); + tmp |= readl(&dev->regs->pciirqenb1); + writel(tmp, &dev->regs->pciirqenb1); /* for short OUT transfers, dma completions can't * advance the queue; do it pio-style, by hand. @@ -298,35 +296,35 @@ net2280_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) */ if ((desc->bEndpointAddress & USB_DIR_IN) == 0) { tmp = BIT(SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE); - writel (tmp, &ep->regs->ep_irqenb); + writel(tmp, &ep->regs->ep_irqenb); enable_pciirqenb(ep); } } tmp = desc->bEndpointAddress; - DEBUG (dev, "enabled %s (ep%d%s-%s) %s max %04x\n", - _ep->name, tmp & 0x0f, DIR_STRING (tmp), - type_string (desc->bmAttributes), + DEBUG(dev, "enabled %s (ep%d%s-%s) %s max %04x\n", + _ep->name, tmp & 0x0f, DIR_STRING(tmp), + type_string(desc->bmAttributes), ep->dma ? "dma" : "pio", max); /* pci writes may still be posted */ - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->lock, flags); return 0; } -static int handshake (u32 __iomem *ptr, u32 mask, u32 done, int usec) +static int handshake(u32 __iomem *ptr, u32 mask, u32 done, int usec) { u32 result; do { - result = readl (ptr); + result = readl(ptr); if (result == ~(u32)0) /* "device unplugged" */ return -ENODEV; result &= mask; if (result == done) return 0; - udelay (1); + udelay(1); usec--; } while (usec > 0); return -ETIMEDOUT; @@ -340,28 +338,28 @@ static void ep_reset_228x(struct net2280_regs __iomem *regs, u32 tmp; ep->desc = NULL; - INIT_LIST_HEAD (&ep->queue); + INIT_LIST_HEAD(&ep->queue); usb_ep_set_maxpacket_limit(&ep->ep, ~0); ep->ep.ops = &net2280_ep_ops; /* disable the dma, irqs, endpoint... */ if (ep->dma) { - writel (0, &ep->dma->dmactl); + writel(0, &ep->dma->dmactl); writel(BIT(DMA_SCATTER_GATHER_DONE_INTERRUPT) | BIT(DMA_TRANSACTION_DONE_INTERRUPT) | BIT(DMA_ABORT), &ep->dma->dmastat); - tmp = readl (®s->pciirqenb0); + tmp = readl(®s->pciirqenb0); tmp &= ~BIT(ep->num); - writel (tmp, ®s->pciirqenb0); + writel(tmp, ®s->pciirqenb0); } else { - tmp = readl (®s->pciirqenb1); + tmp = readl(®s->pciirqenb1); tmp &= ~BIT((8 + ep->num)); /* completion */ - writel (tmp, ®s->pciirqenb1); + writel(tmp, ®s->pciirqenb1); } - writel (0, &ep->regs->ep_irqenb); + writel(0, &ep->regs->ep_irqenb); /* init to our chosen defaults, notably so that we NAK OUT * packets until the driver queues a read (+note erratum 0112) @@ -383,7 +381,7 @@ static void ep_reset_228x(struct net2280_regs __iomem *regs, tmp |= BIT(CLEAR_ENDPOINT_TOGGLE) | BIT(CLEAR_ENDPOINT_HALT); } - writel (tmp, &ep->regs->ep_rsp); + writel(tmp, &ep->regs->ep_rsp); /* scrub most status bits, and flush any fifo state */ if (ep->dev->pdev->device == 0x2280) @@ -459,64 +457,64 @@ static void ep_reset_338x(struct net2280_regs __iomem *regs, BIT(DATA_IN_TOKEN_INTERRUPT), &ep->regs->ep_stat); } -static void nuke (struct net2280_ep *); +static void nuke(struct net2280_ep *); -static int net2280_disable (struct usb_ep *_ep) +static int net2280_disable(struct usb_ep *_ep) { struct net2280_ep *ep; unsigned long flags; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || !ep->desc || _ep->name == ep0name) return -EINVAL; - spin_lock_irqsave (&ep->dev->lock, flags); - nuke (ep); + spin_lock_irqsave(&ep->dev->lock, flags); + nuke(ep); if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX) ep_reset_338x(ep->dev->regs, ep); else ep_reset_228x(ep->dev->regs, ep); - VDEBUG (ep->dev, "disabled %s %s\n", + VDEBUG(ep->dev, "disabled %s %s\n", ep->dma ? "dma" : "pio", _ep->name); /* synch memory views with the device */ (void)readl(&ep->cfg->ep_cfg); if (use_dma && !ep->dma && ep->num >= 1 && ep->num <= 4) - ep->dma = &ep->dev->dma [ep->num - 1]; + ep->dma = &ep->dev->dma[ep->num - 1]; - spin_unlock_irqrestore (&ep->dev->lock, flags); + spin_unlock_irqrestore(&ep->dev->lock, flags); return 0; } /*-------------------------------------------------------------------------*/ -static struct usb_request * -net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) +static struct usb_request +*net2280_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) { struct net2280_ep *ep; struct net2280_request *req; if (!_ep) return NULL; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); req = kzalloc(sizeof(*req), gfp_flags); if (!req) return NULL; - INIT_LIST_HEAD (&req->queue); + INIT_LIST_HEAD(&req->queue); /* this dma descriptor may be swapped with the previous dummy */ if (ep->dma) { struct net2280_dma *td; - td = pci_pool_alloc (ep->dev->requests, gfp_flags, + td = pci_pool_alloc(ep->dev->requests, gfp_flags, &req->td_dma); if (!td) { - kfree (req); + kfree(req); return NULL; } td->dmacount = 0; /* not VALID */ @@ -526,21 +524,20 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) return &req->req; } -static void -net2280_free_request (struct usb_ep *_ep, struct usb_request *_req) +static void net2280_free_request(struct usb_ep *_ep, struct usb_request *_req) { struct net2280_ep *ep; struct net2280_request *req; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || !_req) return; - req = container_of (_req, struct net2280_request, req); - WARN_ON (!list_empty (&req->queue)); + req = container_of(_req, struct net2280_request, req); + WARN_ON(!list_empty(&req->queue)); if (req->td) - pci_pool_free (ep->dev->requests, req->td, req->td_dma); - kfree (req); + pci_pool_free(ep->dev->requests, req->td, req->td_dma); + kfree(req); } /*-------------------------------------------------------------------------*/ @@ -552,8 +549,7 @@ net2280_free_request (struct usb_ep *_ep, struct usb_request *_req) * at a time, but this code is simpler because it knows it only writes * one packet. ep-a..ep-d should use dma instead. */ -static void -write_fifo (struct net2280_ep *ep, struct usb_request *req) +static void write_fifo(struct net2280_ep *ep, struct usb_request *req) { struct net2280_ep_regs __iomem *regs = ep->regs; u8 *buf; @@ -564,7 +560,7 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req) if (req) { buf = req->buf + req->actual; - prefetch (buf); + prefetch(buf); total = req->length - req->actual; } else { total = 0; @@ -576,7 +572,7 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req) if (count > total) /* min() cannot be used on a bitfield */ count = total; - VDEBUG (ep->dev, "write %s fifo (IN) %d bytes%s req %p\n", + VDEBUG(ep->dev, "write %s fifo (IN) %d bytes%s req %p\n", ep->ep.name, count, (count != ep->ep.maxpacket) ? " (short)" : "", req); @@ -585,9 +581,9 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req) * should normally be full (4 bytes) and successive partial * lines are ok only in certain cases. */ - tmp = get_unaligned ((u32 *)buf); - cpu_to_le32s (&tmp); - writel (tmp, ®s->ep_data); + tmp = get_unaligned((u32 *)buf); + cpu_to_le32s(&tmp); + writel(tmp, ®s->ep_data); buf += 4; count -= 4; } @@ -597,10 +593,10 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req) * when maxpacket is not a multiple of 4 bytes. */ if (count || total < ep->ep.maxpacket) { - tmp = count ? get_unaligned ((u32 *)buf) : count; - cpu_to_le32s (&tmp); - set_fifo_bytecount (ep, count & 0x03); - writel (tmp, ®s->ep_data); + tmp = count ? get_unaligned((u32 *)buf) : count; + cpu_to_le32s(&tmp); + set_fifo_bytecount(ep, count & 0x03); + writel(tmp, ®s->ep_data); } /* pci writes may still be posted */ @@ -613,20 +609,21 @@ write_fifo (struct net2280_ep *ep, struct usb_request *req) * NOTE: also used in cases where that erratum doesn't apply: * where the host wrote "too much" data to us. */ -static void out_flush (struct net2280_ep *ep) +static void out_flush(struct net2280_ep *ep) { u32 __iomem *statp; u32 tmp; - ASSERT_OUT_NAKING (ep); + ASSERT_OUT_NAKING(ep); statp = &ep->regs->ep_stat; writel(BIT(DATA_OUT_PING_TOKEN_INTERRUPT) | BIT(DATA_PACKET_RECEIVED_INTERRUPT) , statp); writel(BIT(FIFO_FLUSH), statp); - mb (); - tmp = readl (statp); + /* Make sure that stap is written */ + mb(); + tmp = readl(statp); if (tmp & BIT(DATA_OUT_PING_TOKEN_INTERRUPT) /* high speed did bulk NYET; fifo isn't filling */ && ep->dev->gadget.speed == USB_SPEED_FULL) { @@ -646,8 +643,7 @@ static void out_flush (struct net2280_ep *ep) * for ep-a..ep-d this will read multiple packets out when they * have been accepted. */ -static int -read_fifo (struct net2280_ep *ep, struct net2280_request *req) +static int read_fifo(struct net2280_ep *ep, struct net2280_request *req) { struct net2280_ep_regs __iomem *regs = ep->regs; u8 *buf = req->req.buf + req->req.actual; @@ -659,12 +655,12 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req) */ if (ep->dev->chiprev == 0x0100 && ep->dev->gadget.speed == USB_SPEED_FULL) { - udelay (1); - tmp = readl (&ep->regs->ep_stat); + udelay(1); + tmp = readl(&ep->regs->ep_stat); if ((tmp & BIT(NAK_OUT_PACKETS))) cleanup = 1; else if ((tmp & BIT(FIFO_FULL))) { - start_out_naking (ep); + start_out_naking(ep); prevent = 1; } /* else: hope we don't see the problem */ @@ -673,12 +669,12 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req) /* never overflow the rx buffer. the fifo reads packets until * it sees a short one; we might not be ready for them all. */ - prefetchw (buf); - count = readl (®s->ep_avail); - if (unlikely (count == 0)) { - udelay (1); - tmp = readl (&ep->regs->ep_stat); - count = readl (®s->ep_avail); + prefetchw(buf); + count = readl(®s->ep_avail); + if (unlikely(count == 0)) { + udelay(1); + tmp = readl(&ep->regs->ep_stat); + count = readl(®s->ep_avail); /* handled that data already? */ if (count == 0 && (tmp & BIT(NAK_OUT_PACKETS)) == 0) return 0; @@ -688,7 +684,7 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req) if (count > tmp) { /* as with DMA, data overflow gets flushed */ if ((tmp % ep->ep.maxpacket) != 0) { - ERROR (ep->dev, + ERROR(ep->dev, "%s out fifo %d bytes, expected %d\n", ep->ep.name, count, tmp); req->req.status = -EOVERFLOW; @@ -703,20 +699,20 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req) is_short = (count == 0) || ((count % ep->ep.maxpacket) != 0); - VDEBUG (ep->dev, "read %s fifo (OUT) %d bytes%s%s%s req %p %d/%d\n", + VDEBUG(ep->dev, "read %s fifo (OUT) %d bytes%s%s%s req %p %d/%d\n", ep->ep.name, count, is_short ? " (short)" : "", cleanup ? " flush" : "", prevent ? " nak" : "", req, req->req.actual, req->req.length); while (count >= 4) { - tmp = readl (®s->ep_data); - cpu_to_le32s (&tmp); - put_unaligned (tmp, (u32 *)buf); + tmp = readl(®s->ep_data); + cpu_to_le32s(&tmp); + put_unaligned(tmp, (u32 *)buf); buf += 4; count -= 4; } if (count) { - tmp = readl (®s->ep_data); + tmp = readl(®s->ep_data); /* LE conversion is implicit here: */ do { *buf++ = (u8) tmp; @@ -724,10 +720,10 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req) } while (--count); } if (cleanup) - out_flush (ep); + out_flush(ep); if (prevent) { writel(BIT(CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp); - (void) readl (&ep->regs->ep_rsp); + (void) readl(&ep->regs->ep_rsp); } return is_short || ((req->req.actual == req->req.length) @@ -735,8 +731,8 @@ read_fifo (struct net2280_ep *ep, struct net2280_request *req) } /* fill out dma descriptor to match a given request */ -static void -fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid) +static void fill_dma_desc(struct net2280_ep *ep, + struct net2280_request *req, int valid) { struct net2280_dma *td = req->td; u32 dmacount = req->req.length; @@ -762,7 +758,7 @@ fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid) td->dmaaddr = cpu_to_le32 (req->req.dma); /* 2280 may be polling VALID_BIT through ep->dma->dmadesc */ - wmb (); + wmb(); td->dmacount = cpu_to_le32(dmacount); } @@ -777,18 +773,18 @@ static const u32 dmactl_default = /* erratum 0116 workaround part 2 (no AUTOSTART) */ BIT(DMA_ENABLE); -static inline void spin_stop_dma (struct net2280_dma_regs __iomem *dma) +static inline void spin_stop_dma(struct net2280_dma_regs __iomem *dma) { handshake(&dma->dmactl, BIT(DMA_ENABLE), 0, 50); } -static inline void stop_dma (struct net2280_dma_regs __iomem *dma) +static inline void stop_dma(struct net2280_dma_regs __iomem *dma) { writel(readl(&dma->dmactl) & ~BIT(DMA_ENABLE), &dma->dmactl); - spin_stop_dma (dma); + spin_stop_dma(dma); } -static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma) +static void start_queue(struct net2280_ep *ep, u32 dmactl, u32 td_dma) { struct net2280_dma_regs __iomem *dma = ep->dma; unsigned int tmp = BIT(VALID_BIT) | (ep->is_in << DMA_DIRECTION); @@ -796,24 +792,24 @@ static void start_queue (struct net2280_ep *ep, u32 dmactl, u32 td_dma) if (ep->dev->pdev->device != 0x2280) tmp |= BIT(END_OF_CHAIN); - writel (tmp, &dma->dmacount); - writel (readl (&dma->dmastat), &dma->dmastat); + writel(tmp, &dma->dmacount); + writel(readl(&dma->dmastat), &dma->dmastat); - writel (td_dma, &dma->dmadesc); + writel(td_dma, &dma->dmadesc); if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX) dmactl |= BIT(DMA_REQUEST_OUTSTANDING); - writel (dmactl, &dma->dmactl); + writel(dmactl, &dma->dmactl); /* erratum 0116 workaround part 3: pci arbiter away from net2280 */ - (void) readl (&ep->dev->pci->pcimstctl); + (void) readl(&ep->dev->pci->pcimstctl); writel(BIT(DMA_START), &dma->dmastat); if (!ep->is_in) - stop_out_naking (ep); + stop_out_naking(ep); } -static void start_dma (struct net2280_ep *ep, struct net2280_request *req) +static void start_dma(struct net2280_ep *ep, struct net2280_request *req) { u32 tmp; struct net2280_dma_regs __iomem *dma = ep->dma; @@ -822,24 +818,24 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req) /* on this path we "know" there's no dma active (yet) */ WARN_ON(readl(&dma->dmactl) & BIT(DMA_ENABLE)); - writel (0, &ep->dma->dmactl); + writel(0, &ep->dma->dmactl); /* previous OUT packet might have been short */ - if (!ep->is_in && ((tmp = readl (&ep->regs->ep_stat)) - & BIT(NAK_OUT_PACKETS)) != 0) { + if (!ep->is_in && (readl(&ep->regs->ep_stat) & + BIT(NAK_OUT_PACKETS))) { writel(BIT(SHORT_PACKET_TRANSFERRED_INTERRUPT), &ep->regs->ep_stat); - tmp = readl (&ep->regs->ep_avail); + tmp = readl(&ep->regs->ep_avail); if (tmp) { - writel (readl (&dma->dmastat), &dma->dmastat); + writel(readl(&dma->dmastat), &dma->dmastat); /* transfer all/some fifo data */ - writel (req->req.dma, &dma->dmaaddr); - tmp = min (tmp, req->req.length); + writel(req->req.dma, &dma->dmaaddr); + tmp = min(tmp, req->req.length); /* dma irq, faking scatterlist status */ - req->td->dmacount = cpu_to_le32 (req->req.length - tmp); + req->td->dmacount = cpu_to_le32(req->req.length - tmp); writel(BIT(DMA_DONE_INTERRUPT_ENABLE) | tmp, &dma->dmacount); req->td->dmadesc = 0; @@ -858,8 +854,8 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req) * (zero length) unless the driver explicitly said to do that. */ if (ep->is_in) { - if (likely ((req->req.length % ep->ep.maxpacket) != 0 - || req->req.zero)) { + if (likely((req->req.length % ep->ep.maxpacket) || + req->req.zero)){ tmp |= BIT(DMA_FIFO_VALIDATE); ep->in_fifo_validate = 1; } else @@ -868,12 +864,12 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req) /* init req->td, pointing to the current dummy */ req->td->dmadesc = cpu_to_le32 (ep->td_dma); - fill_dma_desc (ep, req, 1); + fill_dma_desc(ep, req, 1); if (!use_dma_chaining) req->td->dmacount |= cpu_to_le32(BIT(END_OF_CHAIN)); - start_queue (ep, tmp, req->td_dma); + start_queue(ep, tmp, req->td_dma); } static inline void resume_dma(struct net2280_ep *ep) @@ -892,7 +888,7 @@ static inline void ep_stop_dma(struct net2280_ep *ep) } static inline void -queue_dma (struct net2280_ep *ep, struct net2280_request *req, int valid) +queue_dma(struct net2280_ep *ep, struct net2280_request *req, int valid) { struct net2280_dma *end; dma_addr_t tmp; @@ -908,16 +904,16 @@ queue_dma (struct net2280_ep *ep, struct net2280_request *req, int valid) end->dmadesc = cpu_to_le32 (ep->td_dma); - fill_dma_desc (ep, req, valid); + fill_dma_desc(ep, req, valid); } static void -done (struct net2280_ep *ep, struct net2280_request *req, int status) +done(struct net2280_ep *ep, struct net2280_request *req, int status) { struct net2280 *dev; unsigned stopped = ep->stopped; - list_del_init (&req->queue); + list_del_init(&req->queue); if (req->req.status == -EINPROGRESS) req->req.status = status; @@ -929,22 +925,22 @@ done (struct net2280_ep *ep, struct net2280_request *req, int status) usb_gadget_unmap_request(&dev->gadget, &req->req, ep->is_in); if (status && status != -ESHUTDOWN) - VDEBUG (dev, "complete %s req %p stat %d len %u/%u\n", + VDEBUG(dev, "complete %s req %p stat %d len %u/%u\n", ep->ep.name, &req->req, status, req->req.actual, req->req.length); /* don't modify queue heads during completion callback */ ep->stopped = 1; - spin_unlock (&dev->lock); - req->req.complete (&ep->ep, &req->req); - spin_lock (&dev->lock); + spin_unlock(&dev->lock); + req->req.complete(&ep->ep, &req->req); + spin_lock(&dev->lock); ep->stopped = stopped; } /*-------------------------------------------------------------------------*/ static int -net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) +net2280_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) { struct net2280_request *req; struct net2280_ep *ep; @@ -954,13 +950,13 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) /* we always require a cpu-view buffer, so that we can * always use pio (as fallback or whatever). */ - req = container_of (_req, struct net2280_request, req); - if (!_req || !_req->complete || !_req->buf - || !list_empty (&req->queue)) + req = container_of(_req, struct net2280_request, req); + if (!_req || !_req->complete || !_req->buf || + !list_empty(&req->queue)) return -EINVAL; if (_req->length > (~0 & DMA_BYTE_COUNT_MASK)) return -EDOM; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || (!ep->desc && ep->num != 0)) return -EINVAL; dev = ep->dev; @@ -982,17 +978,17 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) } #if 0 - VDEBUG (dev, "%s queue req %p, len %d buf %p\n", + VDEBUG(dev, "%s queue req %p, len %d buf %p\n", _ep->name, _req, _req->length, _req->buf); #endif - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->lock, flags); _req->status = -EINPROGRESS; _req->actual = 0; /* kickstart this i/o queue? */ - if (list_empty (&ep->queue) && !ep->stopped) { + if (list_empty(&ep->queue) && !ep->stopped) { /* DMA request while EP halted */ if (ep->dma && (readl(&ep->regs->ep_rsp) & BIT(CLEAR_ENDPOINT_HALT)) && @@ -1010,24 +1006,24 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) } /* use DMA if the endpoint supports it, else pio */ else if (ep->dma) - start_dma (ep, req); + start_dma(ep, req); else { /* maybe there's no control data, just status ack */ if (ep->num == 0 && _req->length == 0) { - allow_status (ep); - done (ep, req, 0); - VDEBUG (dev, "%s status ack\n", ep->ep.name); + allow_status(ep); + done(ep, req, 0); + VDEBUG(dev, "%s status ack\n", ep->ep.name); goto done; } /* PIO ... stuff the fifo, or unblock it. */ if (ep->is_in) - write_fifo (ep, _req); - else if (list_empty (&ep->queue)) { + write_fifo(ep, _req); + else if (list_empty(&ep->queue)) { u32 s; /* OUT FIFO might have packet(s) buffered */ - s = readl (&ep->regs->ep_stat); + s = readl(&ep->regs->ep_stat); if ((s & BIT(FIFO_EMPTY)) == 0) { /* note: _req->short_not_ok is * ignored here since PIO _always_ @@ -1035,14 +1031,18 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) * _req->status doesn't change for * short reads (only _req->actual) */ - if (read_fifo (ep, req)) { - done (ep, req, 0); - if (ep->num == 0) - allow_status (ep); + if (read_fifo(ep, req) && + ep->num == 0) { + done(ep, req, 0); + allow_status(ep); /* don't queue it */ req = NULL; + } else if (read_fifo(ep, req) && + ep->num != 0) { + done(ep, req, 0); + req = NULL; } else - s = readl (&ep->regs->ep_stat); + s = readl(&ep->regs->ep_stat); } /* don't NAK, let the fifo fill */ @@ -1061,54 +1061,50 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) /* preventing magic zlps is per-engine state, not * per-transfer; irq logic must recover hiccups. */ - expect = likely (req->req.zero - || (req->req.length % ep->ep.maxpacket) != 0); + expect = likely(req->req.zero || + (req->req.length % ep->ep.maxpacket)); if (expect != ep->in_fifo_validate) valid = 0; } - queue_dma (ep, req, valid); + queue_dma(ep, req, valid); } /* else the irq handler advances the queue. */ ep->responded = 1; if (req) - list_add_tail (&req->queue, &ep->queue); + list_add_tail(&req->queue, &ep->queue); done: - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->lock, flags); /* pci writes may still be posted */ return 0; } static inline void -dma_done ( - struct net2280_ep *ep, - struct net2280_request *req, - u32 dmacount, - int status -) +dma_done(struct net2280_ep *ep, struct net2280_request *req, u32 dmacount, + int status) { req->req.actual = req->req.length - (DMA_BYTE_COUNT_MASK & dmacount); - done (ep, req, status); + done(ep, req, status); } -static void restart_dma (struct net2280_ep *ep); +static void restart_dma(struct net2280_ep *ep); -static void scan_dma_completions (struct net2280_ep *ep) +static void scan_dma_completions(struct net2280_ep *ep) { /* only look at descriptors that were "naturally" retired, * so fifo and list head state won't matter */ - while (!list_empty (&ep->queue)) { + while (!list_empty(&ep->queue)) { struct net2280_request *req; u32 tmp; - req = list_entry (ep->queue.next, + req = list_entry(ep->queue.next, struct net2280_request, queue); if (!req->valid) break; - rmb (); - tmp = le32_to_cpup (&req->td->dmacount); + rmb(); + tmp = le32_to_cpup(&req->td->dmacount); if ((tmp & BIT(VALID_BIT)) != 0) break; @@ -1116,17 +1112,17 @@ static void scan_dma_completions (struct net2280_ep *ep) * cases where DMA must be aborted; this code handles * all non-abort DMA completions. */ - if (unlikely (req->td->dmadesc == 0)) { + if (unlikely(req->td->dmadesc == 0)) { /* paranoia */ - tmp = readl (&ep->dma->dmacount); + tmp = readl(&ep->dma->dmacount); if (tmp & DMA_BYTE_COUNT_MASK) break; /* single transfer mode */ - dma_done (ep, req, tmp, 0); + dma_done(ep, req, tmp, 0); break; } else if (!ep->is_in && (req->req.length % ep->ep.maxpacket) != 0) { - tmp = readl (&ep->regs->ep_stat); + tmp = readl(&ep->regs->ep_stat); if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX) return dma_done(ep, req, tmp, 0); @@ -1135,33 +1131,37 @@ static void scan_dma_completions (struct net2280_ep *ep) * 0122, and 0124; not all cases trigger the warning. */ if ((tmp & BIT(NAK_OUT_PACKETS)) == 0) { - WARNING (ep->dev, "%s lost packet sync!\n", + WARNING(ep->dev, "%s lost packet sync!\n", ep->ep.name); req->req.status = -EOVERFLOW; - } else if ((tmp = readl (&ep->regs->ep_avail)) != 0) { - /* fifo gets flushed later */ - ep->out_overflow = 1; - DEBUG (ep->dev, "%s dma, discard %d len %d\n", + } else { + tmp = readl(&ep->regs->ep_avail); + if (tmp) { + /* fifo gets flushed later */ + ep->out_overflow = 1; + DEBUG(ep->dev, + "%s dma, discard %d len %d\n", ep->ep.name, tmp, req->req.length); - req->req.status = -EOVERFLOW; + req->req.status = -EOVERFLOW; + } } } - dma_done (ep, req, tmp, 0); + dma_done(ep, req, tmp, 0); } } -static void restart_dma (struct net2280_ep *ep) +static void restart_dma(struct net2280_ep *ep) { struct net2280_request *req; u32 dmactl = dmactl_default; if (ep->stopped) return; - req = list_entry (ep->queue.next, struct net2280_request, queue); + req = list_entry(ep->queue.next, struct net2280_request, queue); if (!use_dma_chaining) { - start_dma (ep, req); + start_dma(ep, req); return; } @@ -1175,21 +1175,20 @@ static void restart_dma (struct net2280_ep *ep) struct net2280_request *entry, *prev = NULL; int reqmode, done = 0; - DEBUG (ep->dev, "%s dma hiccup td %p\n", ep->ep.name, req->td); - ep->in_fifo_validate = likely (req->req.zero - || (req->req.length % ep->ep.maxpacket) != 0); + DEBUG(ep->dev, "%s dma hiccup td %p\n", ep->ep.name, req->td); + ep->in_fifo_validate = likely(req->req.zero || + (req->req.length % ep->ep.maxpacket) != 0); if (ep->in_fifo_validate) dmactl |= BIT(DMA_FIFO_VALIDATE); - list_for_each_entry (entry, &ep->queue, queue) { + list_for_each_entry(entry, &ep->queue, queue) { __le32 dmacount; if (entry == req) continue; dmacount = entry->td->dmacount; if (!done) { - reqmode = likely (entry->req.zero - || (entry->req.length - % ep->ep.maxpacket) != 0); + reqmode = likely(entry->req.zero || + (entry->req.length % ep->ep.maxpacket)); if (reqmode == ep->in_fifo_validate) { entry->valid = 1; dmacount |= valid_bit; @@ -1211,20 +1210,20 @@ static void restart_dma (struct net2280_ep *ep) } } - writel (0, &ep->dma->dmactl); - start_queue (ep, dmactl, req->td_dma); + writel(0, &ep->dma->dmactl); + start_queue(ep, dmactl, req->td_dma); } static void abort_dma_228x(struct net2280_ep *ep) { /* abort the current transfer */ - if (likely (!list_empty (&ep->queue))) { + if (likely(!list_empty(&ep->queue))) { /* FIXME work around errata 0121, 0122, 0124 */ writel(BIT(DMA_ABORT), &ep->dma->dmastat); - spin_stop_dma (ep->dma); + spin_stop_dma(ep->dma); } else - stop_dma (ep->dma); - scan_dma_completions (ep); + stop_dma(ep->dma); + scan_dma_completions(ep); } static void abort_dma_338x(struct net2280_ep *ep) @@ -1241,24 +1240,24 @@ static void abort_dma(struct net2280_ep *ep) } /* dequeue ALL requests */ -static void nuke (struct net2280_ep *ep) +static void nuke(struct net2280_ep *ep) { struct net2280_request *req; /* called with spinlock held */ ep->stopped = 1; if (ep->dma) - abort_dma (ep); - while (!list_empty (&ep->queue)) { - req = list_entry (ep->queue.next, + abort_dma(ep); + while (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, struct net2280_request, queue); - done (ep, req, -ESHUTDOWN); + done(ep, req, -ESHUTDOWN); } } /* dequeue JUST ONE request */ -static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req) +static int net2280_dequeue(struct usb_ep *_ep, struct usb_request *_req) { struct net2280_ep *ep; struct net2280_request *req; @@ -1266,65 +1265,65 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req) u32 dmactl; int stopped; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || (!ep->desc && ep->num != 0) || !_req) return -EINVAL; - spin_lock_irqsave (&ep->dev->lock, flags); + spin_lock_irqsave(&ep->dev->lock, flags); stopped = ep->stopped; /* quiesce dma while we patch the queue */ dmactl = 0; ep->stopped = 1; if (ep->dma) { - dmactl = readl (&ep->dma->dmactl); + dmactl = readl(&ep->dma->dmactl); /* WARNING erratum 0127 may kick in ... */ - stop_dma (ep->dma); - scan_dma_completions (ep); + stop_dma(ep->dma); + scan_dma_completions(ep); } /* make sure it's still queued on this endpoint */ - list_for_each_entry (req, &ep->queue, queue) { + list_for_each_entry(req, &ep->queue, queue) { if (&req->req == _req) break; } if (&req->req != _req) { - spin_unlock_irqrestore (&ep->dev->lock, flags); + spin_unlock_irqrestore(&ep->dev->lock, flags); return -EINVAL; } /* queue head may be partially complete. */ if (ep->queue.next == &req->queue) { if (ep->dma) { - DEBUG (ep->dev, "unlink (%s) dma\n", _ep->name); + DEBUG(ep->dev, "unlink (%s) dma\n", _ep->name); _req->status = -ECONNRESET; - abort_dma (ep); - if (likely (ep->queue.next == &req->queue)) { - // NOTE: misreports single-transfer mode + abort_dma(ep); + if (likely(ep->queue.next == &req->queue)) { + /* NOTE: misreports single-transfer mode*/ req->td->dmacount = 0; /* invalidate */ - dma_done (ep, req, - readl (&ep->dma->dmacount), + dma_done(ep, req, + readl(&ep->dma->dmacount), -ECONNRESET); } } else { - DEBUG (ep->dev, "unlink (%s) pio\n", _ep->name); - done (ep, req, -ECONNRESET); + DEBUG(ep->dev, "unlink (%s) pio\n", _ep->name); + done(ep, req, -ECONNRESET); } req = NULL; /* patch up hardware chaining data */ } else if (ep->dma && use_dma_chaining) { if (req->queue.prev == ep->queue.next) { - writel (le32_to_cpu (req->td->dmadesc), + writel(le32_to_cpu(req->td->dmadesc), &ep->dma->dmadesc); if (req->td->dmacount & dma_done_ie) - writel (readl (&ep->dma->dmacount) + writel(readl(&ep->dma->dmacount) | le32_to_cpu(dma_done_ie), &ep->dma->dmacount); } else { struct net2280_request *prev; - prev = list_entry (req->queue.prev, + prev = list_entry(req->queue.prev, struct net2280_request, queue); prev->td->dmadesc = req->td->dmadesc; if (req->td->dmacount & dma_done_ie) @@ -1333,30 +1332,30 @@ static int net2280_dequeue (struct usb_ep *_ep, struct usb_request *_req) } if (req) - done (ep, req, -ECONNRESET); + done(ep, req, -ECONNRESET); ep->stopped = stopped; if (ep->dma) { /* turn off dma on inactive queues */ - if (list_empty (&ep->queue)) - stop_dma (ep->dma); + if (list_empty(&ep->queue)) + stop_dma(ep->dma); else if (!ep->stopped) { /* resume current request, or start new one */ if (req) - writel (dmactl, &ep->dma->dmactl); + writel(dmactl, &ep->dma->dmactl); else - start_dma (ep, list_entry (ep->queue.next, + start_dma(ep, list_entry(ep->queue.next, struct net2280_request, queue)); } } - spin_unlock_irqrestore (&ep->dev->lock, flags); + spin_unlock_irqrestore(&ep->dev->lock, flags); return 0; } /*-------------------------------------------------------------------------*/ -static int net2280_fifo_status (struct usb_ep *_ep); +static int net2280_fifo_status(struct usb_ep *_ep); static int net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) @@ -1365,7 +1364,7 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) unsigned long flags; int retval = 0; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || (!ep->desc && ep->num != 0)) return -EINVAL; if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) @@ -1374,13 +1373,13 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) == USB_ENDPOINT_XFER_ISOC) return -EINVAL; - spin_lock_irqsave (&ep->dev->lock, flags); - if (!list_empty (&ep->queue)) + spin_lock_irqsave(&ep->dev->lock, flags); + if (!list_empty(&ep->queue)) retval = -EAGAIN; - else if (ep->is_in && value && net2280_fifo_status (_ep) != 0) + else if (ep->is_in && value && net2280_fifo_status(_ep) != 0) retval = -EAGAIN; else { - VDEBUG (ep->dev, "%s %s %s\n", _ep->name, + VDEBUG(ep->dev, "%s %s %s\n", _ep->name, value ? "set" : "clear", wedged ? "wedge" : "halt"); /* set/clear, then synch memory views with the device */ @@ -1388,44 +1387,41 @@ net2280_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged) if (ep->num == 0) ep->dev->protocol_stall = 1; else - set_halt (ep); + set_halt(ep); if (wedged) ep->wedged = 1; } else { - clear_halt (ep); + clear_halt(ep); if (ep->dev->pdev->vendor == PCI_VENDOR_ID_PLX && !list_empty(&ep->queue) && ep->td_dma) restart_dma(ep); ep->wedged = 0; } - (void) readl (&ep->regs->ep_rsp); + (void) readl(&ep->regs->ep_rsp); } - spin_unlock_irqrestore (&ep->dev->lock, flags); + spin_unlock_irqrestore(&ep->dev->lock, flags); return retval; } -static int -net2280_set_halt(struct usb_ep *_ep, int value) +static int net2280_set_halt(struct usb_ep *_ep, int value) { return net2280_set_halt_and_wedge(_ep, value, 0); } -static int -net2280_set_wedge(struct usb_ep *_ep) +static int net2280_set_wedge(struct usb_ep *_ep) { if (!_ep || _ep->name == ep0name) return -EINVAL; return net2280_set_halt_and_wedge(_ep, 1, 1); } -static int -net2280_fifo_status (struct usb_ep *_ep) +static int net2280_fifo_status(struct usb_ep *_ep) { struct net2280_ep *ep; u32 avail; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || (!ep->desc && ep->num != 0)) return -ENODEV; if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) @@ -1439,19 +1435,18 @@ net2280_fifo_status (struct usb_ep *_ep) return avail; } -static void -net2280_fifo_flush (struct usb_ep *_ep) +static void net2280_fifo_flush(struct usb_ep *_ep) { struct net2280_ep *ep; - ep = container_of (_ep, struct net2280_ep, ep); + ep = container_of(_ep, struct net2280_ep, ep); if (!_ep || (!ep->desc && ep->num != 0)) return; if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN) return; writel(BIT(FIFO_FLUSH), &ep->regs->ep_stat); - (void) readl (&ep->regs->ep_rsp); + (void) readl(&ep->regs->ep_rsp); } static const struct usb_ep_ops net2280_ep_ops = { @@ -1472,7 +1467,7 @@ static const struct usb_ep_ops net2280_ep_ops = { /*-------------------------------------------------------------------------*/ -static int net2280_get_frame (struct usb_gadget *_gadget) +static int net2280_get_frame(struct usb_gadget *_gadget) { struct net2280 *dev; unsigned long flags; @@ -1480,14 +1475,14 @@ static int net2280_get_frame (struct usb_gadget *_gadget) if (!_gadget) return -ENODEV; - dev = container_of (_gadget, struct net2280, gadget); - spin_lock_irqsave (&dev->lock, flags); - retval = get_idx_reg (dev->regs, REG_FRAME) & 0x03ff; - spin_unlock_irqrestore (&dev->lock, flags); + dev = container_of(_gadget, struct net2280, gadget); + spin_lock_irqsave(&dev->lock, flags); + retval = get_idx_reg(dev->regs, REG_FRAME) & 0x03ff; + spin_unlock_irqrestore(&dev->lock, flags); return retval; } -static int net2280_wakeup (struct usb_gadget *_gadget) +static int net2280_wakeup(struct usb_gadget *_gadget) { struct net2280 *dev; u32 tmp; @@ -1495,19 +1490,19 @@ static int net2280_wakeup (struct usb_gadget *_gadget) if (!_gadget) return 0; - dev = container_of (_gadget, struct net2280, gadget); + dev = container_of(_gadget, struct net2280, gadget); - spin_lock_irqsave (&dev->lock, flags); - tmp = readl (&dev->usb->usbctl); + spin_lock_irqsave(&dev->lock, flags); + tmp = readl(&dev->usb->usbctl); if (tmp & BIT(DEVICE_REMOTE_WAKEUP_ENABLE)) writel(BIT(GENERATE_RESUME), &dev->usb->usbstat); - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->lock, flags); /* pci writes may still be posted */ return 0; } -static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value) +static int net2280_set_selfpowered(struct usb_gadget *_gadget, int value) { struct net2280 *dev; u32 tmp; @@ -1515,10 +1510,10 @@ static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value) if (!_gadget) return 0; - dev = container_of (_gadget, struct net2280, gadget); + dev = container_of(_gadget, struct net2280, gadget); - spin_lock_irqsave (&dev->lock, flags); - tmp = readl (&dev->usb->usbctl); + spin_lock_irqsave(&dev->lock, flags); + tmp = readl(&dev->usb->usbctl); if (value) { tmp |= BIT(SELF_POWERED_STATUS); dev->selfpowered = 1; @@ -1526,8 +1521,8 @@ static int net2280_set_selfpowered (struct usb_gadget *_gadget, int value) tmp &= ~BIT(SELF_POWERED_STATUS); dev->selfpowered = 0; } - writel (tmp, &dev->usb->usbctl); - spin_unlock_irqrestore (&dev->lock, flags); + writel(tmp, &dev->usb->usbctl); + spin_unlock_irqrestore(&dev->lock, flags); return 0; } @@ -1540,17 +1535,17 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on) if (!_gadget) return -ENODEV; - dev = container_of (_gadget, struct net2280, gadget); + dev = container_of(_gadget, struct net2280, gadget); - spin_lock_irqsave (&dev->lock, flags); - tmp = readl (&dev->usb->usbctl); + spin_lock_irqsave(&dev->lock, flags); + tmp = readl(&dev->usb->usbctl); dev->softconnect = (is_on != 0); if (is_on) tmp |= BIT(USB_DETECT_ENABLE); else tmp &= ~BIT(USB_DETECT_ENABLE); - writel (tmp, &dev->usb->usbctl); - spin_unlock_irqrestore (&dev->lock, flags); + writel(tmp, &dev->usb->usbctl); + spin_unlock_irqrestore(&dev->lock, flags); return 0; } @@ -1582,13 +1577,12 @@ static const struct usb_gadget_ops net2280_ops = { static ssize_t function_show(struct device *_dev, struct device_attribute *attr, char *buf) { - struct net2280 *dev = dev_get_drvdata (_dev); + struct net2280 *dev = dev_get_drvdata(_dev); - if (!dev->driver - || !dev->driver->function - || strlen (dev->driver->function) > PAGE_SIZE) + if (!dev->driver || !dev->driver->function || + strlen(dev->driver->function) > PAGE_SIZE) return 0; - return scnprintf (buf, PAGE_SIZE, "%s\n", dev->driver->function); + return scnprintf(buf, PAGE_SIZE, "%s\n", dev->driver->function); } static DEVICE_ATTR_RO(function); @@ -1603,10 +1597,10 @@ static ssize_t registers_show(struct device *_dev, u32 t1, t2; const char *s; - dev = dev_get_drvdata (_dev); + dev = dev_get_drvdata(_dev); next = buf; size = PAGE_SIZE; - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->lock, flags); if (dev->driver) s = dev->driver->driver.name; @@ -1614,7 +1608,7 @@ static ssize_t registers_show(struct device *_dev, s = "(none)"; /* Main Control Registers */ - t = scnprintf (next, size, "%s version " DRIVER_VERSION + t = scnprintf(next, size, "%s version " DRIVER_VERSION ", chiprev %04x, dma %s\n\n" "devinit %03x fifoctl %08x gadget '%s'\n" "pci irqenb0 %02x irqenb1 %08x " @@ -1623,19 +1617,19 @@ static ssize_t registers_show(struct device *_dev, use_dma ? (use_dma_chaining ? "chaining" : "enabled") : "disabled", - readl (&dev->regs->devinit), - readl (&dev->regs->fifoctl), + readl(&dev->regs->devinit), + readl(&dev->regs->fifoctl), s, - readl (&dev->regs->pciirqenb0), - readl (&dev->regs->pciirqenb1), - readl (&dev->regs->irqstat0), - readl (&dev->regs->irqstat1)); + readl(&dev->regs->pciirqenb0), + readl(&dev->regs->pciirqenb1), + readl(&dev->regs->irqstat0), + readl(&dev->regs->irqstat1)); size -= t; next += t; /* USB Control Registers */ - t1 = readl (&dev->usb->usbctl); - t2 = readl (&dev->usb->usbstat); + t1 = readl(&dev->usb->usbctl); + t2 = readl(&dev->usb->usbstat); if (t1 & BIT(VBUS_PIN)) { if (t2 & BIT(HIGH_SPEED)) s = "high speed"; @@ -1646,11 +1640,11 @@ static ssize_t registers_show(struct device *_dev, /* full speed bit (6) not working?? */ } else s = "not attached"; - t = scnprintf (next, size, + t = scnprintf(next, size, "stdrsp %08x usbctl %08x usbstat %08x " "addr 0x%02x (%s)\n", - readl (&dev->usb->stdrsp), t1, t2, - readl (&dev->usb->ouraddr), s); + readl(&dev->usb->stdrsp), t1, t2, + readl(&dev->usb->ouraddr), s); size -= t; next += t; @@ -1662,13 +1656,13 @@ static ssize_t registers_show(struct device *_dev, for (i = 0; i < dev->n_ep; i++) { struct net2280_ep *ep; - ep = &dev->ep [i]; + ep = &dev->ep[i]; if (i && !ep->desc) continue; t1 = readl(&ep->cfg->ep_cfg); - t2 = readl (&ep->regs->ep_rsp) & 0xff; - t = scnprintf (next, size, + t2 = readl(&ep->regs->ep_rsp) & 0xff; + t = scnprintf(next, size, "\n%s\tcfg %05x rsp (%02x) %s%s%s%s%s%s%s%s" "irqenb %02x\n", ep->ep.name, t1, t2, @@ -1688,17 +1682,17 @@ static ssize_t registers_show(struct device *_dev, ? "DATA1 " : "DATA0 ", (t2 & BIT(CLEAR_ENDPOINT_HALT)) ? "HALT " : "", - readl (&ep->regs->ep_irqenb)); + readl(&ep->regs->ep_irqenb)); size -= t; next += t; - t = scnprintf (next, size, + t = scnprintf(next, size, "\tstat %08x avail %04x " "(ep%d%s-%s)%s\n", - readl (&ep->regs->ep_stat), - readl (&ep->regs->ep_avail), - t1 & 0x0f, DIR_STRING (t1), - type_string (t1 >> 8), + readl(&ep->regs->ep_stat), + readl(&ep->regs->ep_avail), + t1 & 0x0f, DIR_STRING(t1), + type_string(t1 >> 8), ep->stopped ? "*" : ""); size -= t; next += t; @@ -1706,42 +1700,41 @@ static ssize_t registers_show(struct device *_dev, if (!ep->dma) continue; - t = scnprintf (next, size, + t = scnprintf(next, size, " dma\tctl %08x stat %08x count %08x\n" "\taddr %08x desc %08x\n", - readl (&ep->dma->dmactl), - readl (&ep->dma->dmastat), - readl (&ep->dma->dmacount), - readl (&ep->dma->dmaaddr), - readl (&ep->dma->dmadesc)); + readl(&ep->dma->dmactl), + readl(&ep->dma->dmastat), + readl(&ep->dma->dmacount), + readl(&ep->dma->dmaaddr), + readl(&ep->dma->dmadesc)); size -= t; next += t; } - /* Indexed Registers */ - // none yet + /* Indexed Registers (none yet) */ /* Statistics */ - t = scnprintf (next, size, "\nirqs: "); + t = scnprintf(next, size, "\nirqs: "); size -= t; next += t; for (i = 0; i < dev->n_ep; i++) { struct net2280_ep *ep; - ep = &dev->ep [i]; + ep = &dev->ep[i]; if (i && !ep->irqs) continue; - t = scnprintf (next, size, " %s/%lu", ep->ep.name, ep->irqs); + t = scnprintf(next, size, " %s/%lu", ep->ep.name, ep->irqs); size -= t; next += t; } - t = scnprintf (next, size, "\n"); + t = scnprintf(next, size, "\n"); size -= t; next += t; - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->lock, flags); return PAGE_SIZE - size; } @@ -1756,13 +1749,13 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr, unsigned long flags; int i; - dev = dev_get_drvdata (_dev); + dev = dev_get_drvdata(_dev); next = buf; size = PAGE_SIZE; - spin_lock_irqsave (&dev->lock, flags); + spin_lock_irqsave(&dev->lock, flags); for (i = 0; i < dev->n_ep; i++) { - struct net2280_ep *ep = &dev->ep [i]; + struct net2280_ep *ep = &dev->ep[i]; struct net2280_request *req; int t; @@ -1773,40 +1766,40 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr, if (!d) continue; t = d->bEndpointAddress; - t = scnprintf (next, size, + t = scnprintf(next, size, "\n%s (ep%d%s-%s) max %04x %s fifo %d\n", ep->ep.name, t & USB_ENDPOINT_NUMBER_MASK, (t & USB_DIR_IN) ? "in" : "out", type_string(d->bmAttributes), - usb_endpoint_maxp (d) & 0x1fff, + usb_endpoint_maxp(d) & 0x1fff, ep->dma ? "dma" : "pio", ep->fifo_size ); } else /* ep0 should only have one transfer queued */ - t = scnprintf (next, size, "ep0 max 64 pio %s\n", + t = scnprintf(next, size, "ep0 max 64 pio %s\n", ep->is_in ? "in" : "out"); if (t <= 0 || t > size) goto done; size -= t; next += t; - if (list_empty (&ep->queue)) { - t = scnprintf (next, size, "\t(nothing queued)\n"); + if (list_empty(&ep->queue)) { + t = scnprintf(next, size, "\t(nothing queued)\n"); if (t <= 0 || t > size) goto done; size -= t; next += t; continue; } - list_for_each_entry (req, &ep->queue, queue) { - if (ep->dma && req->td_dma == readl (&ep->dma->dmadesc)) - t = scnprintf (next, size, + list_for_each_entry(req, &ep->queue, queue) { + if (ep->dma && req->td_dma == readl(&ep->dma->dmadesc)) + t = scnprintf(next, size, "\treq %p len %d/%d " "buf %p (dmacount %08x)\n", &req->req, req->req.actual, req->req.length, req->req.buf, - readl (&ep->dma->dmacount)); + readl(&ep->dma->dmacount)); else - t = scnprintf (next, size, + t = scnprintf(next, size, "\treq %p len %d/%d buf %p\n", &req->req, req->req.actual, req->req.length, req->req.buf); @@ -1819,12 +1812,12 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr, struct net2280_dma *td; td = req->td; - t = scnprintf (next, size, "\t td %08x " + t = scnprintf(next, size, "\t td %08x " " count %08x buf %08x desc %08x\n", (u32) req->td_dma, - le32_to_cpu (td->dmacount), - le32_to_cpu (td->dmaaddr), - le32_to_cpu (td->dmadesc)); + le32_to_cpu(td->dmacount), + le32_to_cpu(td->dmaaddr), + le32_to_cpu(td->dmadesc)); if (t <= 0 || t > size) goto done; size -= t; @@ -1834,7 +1827,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr, } done: - spin_unlock_irqrestore (&dev->lock, flags); + spin_unlock_irqrestore(&dev->lock, flags); return PAGE_SIZE - size; } static DEVICE_ATTR_RO(queues); @@ -1842,8 +1835,8 @@ static DEVICE_ATTR_RO(queues); #else -#define device_create_file(a,b) (0) -#define device_remove_file(a,b) do { } while (0) +#define device_create_file(a, b) (0) +#define device_remove_file(a, b) do { } while (0) #endif @@ -1853,33 +1846,33 @@ static DEVICE_ATTR_RO(queues); * to/from another device fifo instead of to/from memory. */ -static void set_fifo_mode (struct net2280 *dev, int mode) +static void set_fifo_mode(struct net2280 *dev, int mode) { /* keeping high bits preserves BAR2 */ - writel ((0xffff << PCI_BASE2_RANGE) | mode, &dev->regs->fifoctl); + writel((0xffff << PCI_BASE2_RANGE) | mode, &dev->regs->fifoctl); /* always ep-{a,b,e,f} ... maybe not ep-c or ep-d */ - INIT_LIST_HEAD (&dev->gadget.ep_list); - list_add_tail (&dev->ep [1].ep.ep_list, &dev->gadget.ep_list); - list_add_tail (&dev->ep [2].ep.ep_list, &dev->gadget.ep_list); + INIT_LIST_HEAD(&dev->gadget.ep_list); + list_add_tail(&dev->ep[1].ep.ep_list, &dev->gadget.ep_list); + list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list); switch (mode) { case 0: - list_add_tail (&dev->ep [3].ep.ep_list, &dev->gadget.ep_list); - list_add_tail (&dev->ep [4].ep.ep_list, &dev->gadget.ep_list); - dev->ep [1].fifo_size = dev->ep [2].fifo_size = 1024; + list_add_tail(&dev->ep[3].ep.ep_list, &dev->gadget.ep_list); + list_add_tail(&dev->ep[4].ep.ep_list, &dev->gadget.ep_list); + dev->ep[1].fifo_size = dev->ep[2].fifo_size = 1024; break; case 1: - dev->ep [1].fifo_size = dev->ep [2].fifo_size = 2048; + dev->ep[1].fifo_size = dev->ep[2].fifo_size = 2048; break; case 2: - list_add_tail (&dev->ep [3].ep.ep_list, &dev->gadget.ep_list); - dev->ep [1].fifo_size = 2048; - dev->ep [2].fifo_size = 1024; + list_add_tail(&dev->ep[3].ep.ep_list, &dev->gadget.ep_list); + dev->ep[1].fifo_size = 2048; + dev->ep[2].fifo_size = 1024; break; } /* fifo sizes for ep0, ep-c, ep-d, ep-e, and ep-f never change */ - list_add_tail (&dev->ep [5].ep.ep_list, &dev->gadget.ep_list); - list_add_tail (&dev->ep [6].ep.ep_list, &dev->gadget.ep_list); + list_add_tail(&dev->ep[5].ep.ep_list, &dev->gadget.ep_list); + list_add_tail(&dev->ep[6].ep.ep_list, &dev->gadget.ep_list); } static void defect7374_disable_data_eps(struct net2280 *dev) @@ -2011,14 +2004,14 @@ static void usb_reset_228x(struct net2280 *dev) u32 tmp; dev->gadget.speed = USB_SPEED_UNKNOWN; - (void) readl (&dev->usb->usbctl); + (void) readl(&dev->usb->usbctl); - net2280_led_init (dev); + net2280_led_init(dev); /* disable automatic responses, and irqs */ - writel (0, &dev->usb->stdrsp); - writel (0, &dev->regs->pciirqenb0); - writel (0, &dev->regs->pciirqenb1); + writel(0, &dev->usb->stdrsp); + writel(0, &dev->regs->pciirqenb0); + writel(0, &dev->regs->pciirqenb1); /* clear old dma and irq state */ for (tmp = 0; tmp < 4; tmp++) { @@ -2027,7 +2020,7 @@ static void usb_reset_228x(struct net2280 *dev) abort_dma(ep); } - writel (~0, &dev->regs->irqstat0), + writel(~0, &dev->regs->irqstat0), writel(~(u32)BIT(SUSPEND_REQUEST_INTERRUPT), &dev->regs->irqstat1), /* reset, and enable pci */ @@ -2036,10 +2029,10 @@ static void usb_reset_228x(struct net2280 *dev) BIT(FIFO_SOFT_RESET) | BIT(USB_SOFT_RESET) | BIT(M8051_RESET); - writel (tmp, &dev->regs->devinit); + writel(tmp, &dev->regs->devinit); /* standard fifo and endpoint allocations */ - set_fifo_mode (dev, (fifo_mode <= 2) ? fifo_mode : 0); + set_fifo_mode(dev, (fifo_mode <= 2) ? fifo_mode : 0); } static void usb_reset_338x(struct net2280 *dev) @@ -2112,35 +2105,35 @@ static void usb_reinit_228x(struct net2280 *dev) /* basic endpoint init */ for (tmp = 0; tmp < 7; tmp++) { - struct net2280_ep *ep = &dev->ep [tmp]; + struct net2280_ep *ep = &dev->ep[tmp]; - ep->ep.name = ep_name [tmp]; + ep->ep.name = ep_name[tmp]; ep->dev = dev; ep->num = tmp; if (tmp > 0 && tmp <= 4) { ep->fifo_size = 1024; if (init_dma) - ep->dma = &dev->dma [tmp - 1]; + ep->dma = &dev->dma[tmp - 1]; } else ep->fifo_size = 64; - ep->regs = &dev->epregs [tmp]; + ep->regs = &dev->epregs[tmp]; ep->cfg = &dev->epregs[tmp]; ep_reset_228x(dev->regs, ep); } - usb_ep_set_maxpacket_limit(&dev->ep [0].ep, 64); - usb_ep_set_maxpacket_limit(&dev->ep [5].ep, 64); - usb_ep_set_maxpacket_limit(&dev->ep [6].ep, 64); + usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64); + usb_ep_set_maxpacket_limit(&dev->ep[5].ep, 64); + usb_ep_set_maxpacket_limit(&dev->ep[6].ep, 64); - dev->gadget.ep0 = &dev->ep [0].ep; - dev->ep [0].stopped = 0; - INIT_LIST_HEAD (&dev->gadget.ep0->ep_list); + dev->gadget.ep0 = &dev->ep[0].ep; + dev->ep[0].stopped = 0; + INIT_LIST_HEAD(&dev->gadget.ep0->ep_list); /* we want to prevent lowlevel/insecure access from the USB host, * but erratum 0119 means this enable bit is ignored */ for (tmp = 0; tmp < 5; tmp++) - writel (EP_DONTUSE, &dev->dep [tmp].dep_cfg); + writel(EP_DONTUSE, &dev->dep[tmp].dep_cfg); } static void usb_reinit_338x(struct net2280 *dev) @@ -2263,7 +2256,7 @@ static void ep0_start_228x(struct net2280 *dev) writel(BIT(CLEAR_EP_HIDE_STATUS_PHASE) | BIT(CLEAR_NAK_OUT_PACKETS) | BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) - , &dev->epregs [0].ep_rsp); + , &dev->epregs[0].ep_rsp); /* * hardware optionally handles a bunch of standard requests @@ -2298,7 +2291,7 @@ static void ep0_start_228x(struct net2280 *dev) &dev->regs->pciirqenb1); /* don't leave any writes posted */ - (void) readl (&dev->usb->usbctl); + (void) readl(&dev->usb->usbctl); } static void ep0_start_338x(struct net2280 *dev) @@ -2377,20 +2370,22 @@ static int net2280_start(struct usb_gadget *_gadget, || !driver->setup) return -EINVAL; - dev = container_of (_gadget, struct net2280, gadget); + dev = container_of(_gadget, struct net2280, gadget); for (i = 0; i < dev->n_ep; i++) - dev->ep [i].irqs = 0; + dev->ep[i].irqs = 0; /* hook up the driver ... */ dev->softconnect = 1; driver->driver.bus = NULL; dev->driver = driver; - retval = device_create_file (&dev->pdev->dev, &dev_attr_function); - if (retval) goto err_unbind; - retval = device_create_file (&dev->pdev->dev, &dev_attr_queues); - if (retval) goto err_func; + retval = device_create_file(&dev->pdev->dev, &dev_attr_function); + if (retval) + goto err_unbind; + retval = device_create_file(&dev->pdev->dev, &dev_attr_queues); + if (retval) + goto err_func; /* Enable force-full-speed testing mode, if desired */ if (full_speed && dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY) @@ -2399,30 +2394,29 @@ static int net2280_start(struct usb_gadget *_gadget, /* ... then enable host detection and ep0; and we're ready * for set_configuration as well as eventual disconnect. */ - net2280_led_active (dev, 1); + net2280_led_active(dev, 1); if (dev->pdev->vendor == PCI_VENDOR_ID_PLX) defect7374_enable_data_eps_zero(dev); - ep0_start (dev); + ep0_start(dev); - DEBUG (dev, "%s ready, usbctl %08x stdrsp %08x\n", + DEBUG(dev, "%s ready, usbctl %08x stdrsp %08x\n", driver->driver.name, - readl (&dev->usb->usbctl), - readl (&dev->usb->stdrsp)); + readl(&dev->usb->usbctl), + readl(&dev->usb->stdrsp)); /* pci writes may still be posted */ return 0; err_func: - device_remove_file (&dev->pdev->dev, &dev_attr_function); + device_remove_file(&dev->pdev->dev, &dev_attr_function); err_unbind: dev->driver = NULL; return retval; } -static void -stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) +static void stop_activity(struct net2280 *dev, struct usb_gadget_driver *driver) { int i; @@ -2433,9 +2427,9 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) /* stop hardware; prevent new request submissions; * and kill any outstanding requests. */ - usb_reset (dev); + usb_reset(dev); for (i = 0; i < dev->n_ep; i++) - nuke (&dev->ep [i]); + nuke(&dev->ep[i]); /* report disconnect; the driver is already quiesced */ if (driver) { @@ -2444,7 +2438,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver) spin_lock(&dev->lock); } - usb_reinit (dev); + usb_reinit(dev); } static int net2280_stop(struct usb_gadget *_gadget, @@ -2453,22 +2447,22 @@ static int net2280_stop(struct usb_gadget *_gadget, struct net2280 *dev; unsigned long flags; - dev = container_of (_gadget, struct net2280, gadget); + dev = container_of(_gadget, struct net2280, gadget); - spin_lock_irqsave (&dev->lock, flags); - stop_activity (dev, driver); - spin_unlock_irqrestore (&dev->lock, flags); + spin_lock_irqsave(&dev->lock, flags); + stop_activity(dev, driver); + spin_unlock_irqrestore(&dev->lock, flags); dev->driver = NULL; - net2280_led_active (dev, 0); + net2280_led_active(dev, 0); /* Disable full-speed test mode */ if (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY) writel(0, &dev->usb->xcvrdiag); - device_remove_file (&dev->pdev->dev, &dev_attr_function); - device_remove_file (&dev->pdev->dev, &dev_attr_queues); + device_remove_file(&dev->pdev->dev, &dev_attr_function); + device_remove_file(&dev->pdev->dev, &dev_attr_queues); DEBUG(dev, "unregistered driver '%s'\n", driver ? driver->driver.name : ""); @@ -2482,31 +2476,31 @@ static int net2280_stop(struct usb_gadget *_gadget, * also works for dma-capable endpoints, in pio mode or just * to manually advance the queue after short OUT transfers. */ -static void handle_ep_small (struct net2280_ep *ep) +static void handle_ep_small(struct net2280_ep *ep) { struct net2280_request *req; u32 t; /* 0 error, 1 mid-data, 2 done */ int mode = 1; - if (!list_empty (&ep->queue)) - req = list_entry (ep->queue.next, + if (!list_empty(&ep->queue)) + req = list_entry(ep->queue.next, struct net2280_request, queue); else req = NULL; /* ack all, and handle what we care about */ - t = readl (&ep->regs->ep_stat); + t = readl(&ep->regs->ep_stat); ep->irqs++; #if 0 - VDEBUG (ep->dev, "%s ack ep_stat %08x, req %p\n", + VDEBUG(ep->dev, "%s ack ep_stat %08x, req %p\n", ep->ep.name, t, req ? &req->req : 0); #endif if (!ep->is_in || ep->dev->pdev->device == 0x2280) writel(t & ~BIT(NAK_OUT_PACKETS), &ep->regs->ep_stat); else /* Added for 2282 */ - writel (t, &ep->regs->ep_stat); + writel(t, &ep->regs->ep_stat); /* for ep0, monitor token irqs to catch data stage length errors * and to synchronize on status. @@ -2518,33 +2512,33 @@ static void handle_ep_small (struct net2280_ep *ep) * control requests could be slightly faster without token synch for * status, but status can jam up that way. */ - if (unlikely (ep->num == 0)) { + if (unlikely(ep->num == 0)) { if (ep->is_in) { /* status; stop NAKing */ if (t & BIT(DATA_OUT_PING_TOKEN_INTERRUPT)) { if (ep->dev->protocol_stall) { ep->stopped = 1; - set_halt (ep); + set_halt(ep); } if (!req) - allow_status (ep); + allow_status(ep); mode = 2; /* reply to extra IN data tokens with a zlp */ } else if (t & BIT(DATA_IN_TOKEN_INTERRUPT)) { if (ep->dev->protocol_stall) { ep->stopped = 1; - set_halt (ep); + set_halt(ep); mode = 2; } else if (ep->responded && !req && !ep->stopped) - write_fifo (ep, NULL); + write_fifo(ep, NULL); } } else { /* status; stop NAKing */ if (t & BIT(DATA_IN_TOKEN_INTERRUPT)) { if (ep->dev->protocol_stall) { ep->stopped = 1; - set_halt (ep); + set_halt(ep); } mode = 2; /* an extra OUT token is an error */ @@ -2553,20 +2547,20 @@ static void handle_ep_small (struct net2280_ep *ep) && req->req.actual == req->req.length) || (ep->responded && !req)) { ep->dev->protocol_stall = 1; - set_halt (ep); + set_halt(ep); ep->stopped = 1; if (req) - done (ep, req, -EOVERFLOW); + done(ep, req, -EOVERFLOW); req = NULL; } } } - if (unlikely (!req)) + if (unlikely(!req)) return; /* manual DMA queue advance after short OUT */ - if (likely (ep->dma)) { + if (likely(ep->dma)) { if (t & BIT(SHORT_PACKET_TRANSFERRED_INTERRUPT)) { u32 count; int stopped = ep->stopped; @@ -2576,27 +2570,27 @@ static void handle_ep_small (struct net2280_ep *ep) * iff (M < N) we won't ever see a DMA interrupt. */ ep->stopped = 1; - for (count = 0; ; t = readl (&ep->regs->ep_stat)) { + for (count = 0; ; t = readl(&ep->regs->ep_stat)) { /* any preceding dma transfers must finish. * dma handles (M >= N), may empty the queue */ - scan_dma_completions (ep); - if (unlikely (list_empty (&ep->queue) + scan_dma_completions(ep); + if (unlikely(list_empty(&ep->queue) || ep->out_overflow)) { req = NULL; break; } - req = list_entry (ep->queue.next, + req = list_entry(ep->queue.next, struct net2280_request, queue); /* here either (M < N), a "real" short rx; * or (M == N) and the queue didn't empty */ if (likely(t & BIT(FIFO_EMPTY))) { - count = readl (&ep->dma->dmacount); + count = readl(&ep->dma->dmacount); count &= DMA_BYTE_COUNT_MASK; - if (readl (&ep->dma->dmadesc) + if (readl(&ep->dma->dmadesc) != req->td_dma) req = NULL; break; @@ -2606,37 +2600,37 @@ static void handle_ep_small (struct net2280_ep *ep) /* stop DMA, leave ep NAKing */ writel(BIT(DMA_ABORT), &ep->dma->dmastat); - spin_stop_dma (ep->dma); + spin_stop_dma(ep->dma); - if (likely (req)) { + if (likely(req)) { req->td->dmacount = 0; - t = readl (&ep->regs->ep_avail); - dma_done (ep, req, count, + t = readl(&ep->regs->ep_avail); + dma_done(ep, req, count, (ep->out_overflow || t) ? -EOVERFLOW : 0); } /* also flush to prevent erratum 0106 trouble */ - if (unlikely (ep->out_overflow + if (unlikely(ep->out_overflow || (ep->dev->chiprev == 0x0100 && ep->dev->gadget.speed == USB_SPEED_FULL))) { - out_flush (ep); + out_flush(ep); ep->out_overflow = 0; } /* (re)start dma if needed, stop NAKing */ ep->stopped = stopped; - if (!list_empty (&ep->queue)) - restart_dma (ep); + if (!list_empty(&ep->queue)) + restart_dma(ep); } else - DEBUG (ep->dev, "%s dma ep_stat %08x ??\n", + DEBUG(ep->dev, "%s dma ep_stat %08x ??\n", ep->ep.name, t); return; /* data packet(s) received (in the fifo, OUT) */ } else if (t & BIT(DATA_PACKET_RECEIVED_INTERRUPT)) { - if (read_fifo (ep, req) && ep->num != 0) + if (read_fifo(ep, req) && ep->num != 0) mode = 2; /* data packet(s) transmitted (IN) */ @@ -2649,12 +2643,10 @@ static void handle_ep_small (struct net2280_ep *ep) req->req.actual += len; /* if we wrote it all, we're usually done */ - if (req->req.actual == req->req.length) { - if (ep->num == 0) { - /* send zlps until the status stage */ - } else if (!req->req.zero || len != ep->ep.maxpacket) + /* send zlps until the status stage */ + if ((req->req.actual == req->req.length) && + (!req->req.zero || len != ep->ep.maxpacket) && ep->num) mode = 2; - } /* there was nothing to do ... */ } else if (mode == 1) @@ -2663,7 +2655,7 @@ static void handle_ep_small (struct net2280_ep *ep) /* done */ if (mode == 2) { /* stream endpoints often resubmit/unlink in completion */ - done (ep, req, 0); + done(ep, req, 0); /* maybe advance queue to next request */ if (ep->num == 0) { @@ -2672,16 +2664,16 @@ static void handle_ep_small (struct net2280_ep *ep) * them control that, the api doesn't (yet) allow it. */ if (!ep->stopped) - allow_status (ep); + allow_status(ep); req = NULL; } else { - if (!list_empty (&ep->queue) && !ep->stopped) - req = list_entry (ep->queue.next, + if (!list_empty(&ep->queue) && !ep->stopped) + req = list_entry(ep->queue.next, struct net2280_request, queue); else req = NULL; if (req && !ep->is_in) - stop_out_naking (ep); + stop_out_naking(ep); } } @@ -2692,18 +2684,17 @@ static void handle_ep_small (struct net2280_ep *ep) /* load IN fifo with next packet (may be zlp) */ if (t & BIT(DATA_PACKET_TRANSMITTED_INTERRUPT)) - write_fifo (ep, &req->req); + write_fifo(ep, &req->req); } } -static struct net2280_ep * -get_ep_by_addr (struct net2280 *dev, u16 wIndex) +static struct net2280_ep *get_ep_by_addr(struct net2280 *dev, u16 wIndex) { struct net2280_ep *ep; if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0) - return &dev->ep [0]; - list_for_each_entry (ep, &dev->gadget.ep_list, ep.ep_list) { + return &dev->ep[0]; + list_for_each_entry(ep, &dev->gadget.ep_list, ep.ep_list) { u8 bEndpointAddress; if (!ep->desc) @@ -3061,7 +3052,7 @@ next_endpoints3: return; } -static void handle_stat0_irqs (struct net2280 *dev, u32 stat) +static void handle_stat0_irqs(struct net2280 *dev, u32 stat) { struct net2280_ep *ep; u32 num, scratch; @@ -3070,12 +3061,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) stat &= ~BIT(INTA_ASSERTED); if (!stat) return; - // DEBUG (dev, "irqstat0 %04x\n", stat); + /* DEBUG(dev, "irqstat0 %04x\n", stat); */ /* starting a control request? */ if (unlikely(stat & BIT(SETUP_PACKET_INTERRUPT))) { union { - u32 raw [2]; + u32 raw[2]; struct usb_ctrlrequest r; } u; int tmp; @@ -3096,19 +3087,20 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) usb_ep_set_maxpacket_limit(&dev->ep[0].ep, EP0_HS_MAX_PACKET_SIZE); } - net2280_led_speed (dev, dev->gadget.speed); - DEBUG(dev, "%s\n", usb_speed_string(dev->gadget.speed)); + net2280_led_speed(dev, dev->gadget.speed); + DEBUG(dev, "%s\n", + usb_speed_string(dev->gadget.speed)); } - ep = &dev->ep [0]; + ep = &dev->ep[0]; ep->irqs++; /* make sure any leftover request state is cleared */ stat &= ~BIT(ENDPOINT_0_INTERRUPT); - while (!list_empty (&ep->queue)) { - req = list_entry (ep->queue.next, + while (!list_empty(&ep->queue)) { + req = list_entry(ep->queue.next, struct net2280_request, queue); - done (ep, req, (req->req.actual == req->req.length) + done(ep, req, (req->req.actual == req->req.length) ? 0 : -EPROTO); } ep->stopped = 0; @@ -3139,8 +3131,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) u.raw[0] = readl(&dev->usb->setup0123); u.raw[1] = readl(&dev->usb->setup4567); - cpu_to_le32s (&u.raw [0]); - cpu_to_le32s (&u.raw [1]); + cpu_to_le32s(&u.raw[0]); + cpu_to_le32s(&u.raw[1]); if (dev->pdev->vendor == PCI_VENDOR_ID_PLX) defect7374_workaround(dev, u.r); @@ -3165,12 +3157,12 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) scratch = BIT(DATA_PACKET_TRANSMITTED_INTERRUPT) | BIT(DATA_OUT_PING_TOKEN_INTERRUPT) | BIT(DATA_IN_TOKEN_INTERRUPT); - stop_out_naking (ep); + stop_out_naking(ep); } else scratch = BIT(DATA_PACKET_RECEIVED_INTERRUPT) | BIT(DATA_OUT_PING_TOKEN_INTERRUPT) | BIT(DATA_IN_TOKEN_INTERRUPT); - writel (scratch, &dev->epregs [0].ep_irqenb); + writel(scratch, &dev->epregs[0].ep_irqenb); /* we made the hardware handle most lowlevel requests; * everything else goes uplevel to the gadget code. @@ -3190,21 +3182,21 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) /* hw handles device and interface status */ if (u.r.bRequestType != (USB_DIR_IN|USB_RECIP_ENDPOINT)) goto delegate; - if ((e = get_ep_by_addr (dev, w_index)) == NULL - || w_length > 2) + e = get_ep_by_addr(dev, w_index); + if (!e || w_length > 2) goto do_stall; if (readl(&e->regs->ep_rsp) & BIT(SET_ENDPOINT_HALT)) - status = cpu_to_le32 (1); + status = cpu_to_le32(1); else - status = cpu_to_le32 (0); + status = cpu_to_le32(0); /* don't bother with a request object! */ - writel (0, &dev->epregs [0].ep_irqenb); - set_fifo_bytecount (ep, w_length); - writel ((__force u32)status, &dev->epregs [0].ep_data); - allow_status (ep); - VDEBUG (dev, "%s stat %02x\n", ep->ep.name, status); + writel(0, &dev->epregs[0].ep_irqenb); + set_fifo_bytecount(ep, w_length); + writel((__force u32)status, &dev->epregs[0].ep_data); + allow_status(ep); + VDEBUG(dev, "%s stat %02x\n", ep->ep.name, status); goto next_endpoints; } break; @@ -3217,7 +3209,8 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) if (w_value != USB_ENDPOINT_HALT || w_length != 0) goto do_stall; - if ((e = get_ep_by_addr (dev, w_index)) == NULL) + e = get_ep_by_addr(dev, w_index); + if (!e) goto do_stall; if (e->wedged) { VDEBUG(dev, "%s wedged, halt not cleared\n", @@ -3230,7 +3223,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) !list_empty(&e->queue) && e->td_dma) restart_dma(e); } - allow_status (ep); + allow_status(ep); goto next_endpoints; } break; @@ -3243,35 +3236,36 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) if (w_value != USB_ENDPOINT_HALT || w_length != 0) goto do_stall; - if ((e = get_ep_by_addr (dev, w_index)) == NULL) + e = get_ep_by_addr(dev, w_index); + if (!e) goto do_stall; if (e->ep.name == ep0name) goto do_stall; - set_halt (e); + set_halt(e); if (dev->pdev->vendor == PCI_VENDOR_ID_PLX && e->dma) abort_dma(e); - allow_status (ep); - VDEBUG (dev, "%s set halt\n", ep->ep.name); + allow_status(ep); + VDEBUG(dev, "%s set halt\n", ep->ep.name); goto next_endpoints; } break; default: delegate: - VDEBUG (dev, "setup %02x.%02x v%04x i%04x l%04x " + VDEBUG(dev, "setup %02x.%02x v%04x i%04x l%04x " "ep_cfg %08x\n", u.r.bRequestType, u.r.bRequest, w_value, w_index, w_length, readl(&ep->cfg->ep_cfg)); ep->responded = 0; - spin_unlock (&dev->lock); - tmp = dev->driver->setup (&dev->gadget, &u.r); - spin_lock (&dev->lock); + spin_unlock(&dev->lock); + tmp = dev->driver->setup(&dev->gadget, &u.r); + spin_lock(&dev->lock); } /* stall ep0 on error */ if (tmp < 0) { do_stall: - VDEBUG (dev, "req %02x.%02x protocol STALL; stat %d\n", + VDEBUG(dev, "req %02x.%02x protocol STALL; stat %d\n", u.r.bRequestType, u.r.bRequest, tmp); dev->protocol_stall = 1; } @@ -3299,12 +3293,12 @@ next_endpoints: continue; scratch ^= t; - ep = &dev->ep [num]; - handle_ep_small (ep); + ep = &dev->ep[num]; + handle_ep_small(ep); } if (stat) - DEBUG (dev, "unhandled irqstat0 %08x\n", stat); + DEBUG(dev, "unhandled irqstat0 %08x\n", stat); } #define DMA_INTERRUPTS (BIT(DMA_D_INTERRUPT) | \ @@ -3316,7 +3310,7 @@ next_endpoints: BIT(PCI_TARGET_ABORT_RECEIVED_INTERRUPT) | \ BIT(PCI_RETRY_ABORT_INTERRUPT)) -static void handle_stat1_irqs (struct net2280 *dev, u32 stat) +static void handle_stat1_irqs(struct net2280 *dev, u32 stat) { struct net2280_ep *ep; u32 tmp, num, mask, scratch; @@ -3331,17 +3325,17 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) * only indicates a change in the reset state). */ if (stat & tmp) { - writel (tmp, &dev->regs->irqstat1); + writel(tmp, &dev->regs->irqstat1); if ((((stat & BIT(ROOT_PORT_RESET_INTERRUPT)) - && ((readl (&dev->usb->usbstat) & mask) + && ((readl(&dev->usb->usbstat) & mask) == 0)) - || ((readl (&dev->usb->usbctl) + || ((readl(&dev->usb->usbctl) & BIT(VBUS_PIN)) == 0) - ) && ( dev->gadget.speed != USB_SPEED_UNKNOWN)) { - DEBUG (dev, "disconnect %s\n", + ) && (dev->gadget.speed != USB_SPEED_UNKNOWN)) { + DEBUG(dev, "disconnect %s\n", dev->driver->driver.name); - stop_activity (dev, dev->driver); - ep0_start (dev); + stop_activity(dev, dev->driver); + ep0_start(dev); return; } stat &= ~tmp; @@ -3358,15 +3352,15 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) */ tmp = BIT(SUSPEND_REQUEST_CHANGE_INTERRUPT); if (stat & tmp) { - writel (tmp, &dev->regs->irqstat1); + writel(tmp, &dev->regs->irqstat1); if (stat & BIT(SUSPEND_REQUEST_INTERRUPT)) { if (dev->driver->suspend) - dev->driver->suspend (&dev->gadget); + dev->driver->suspend(&dev->gadget); if (!enable_suspend) stat &= ~BIT(SUSPEND_REQUEST_INTERRUPT); } else { if (dev->driver->resume) - dev->driver->resume (&dev->gadget); + dev->driver->resume(&dev->gadget); /* at high speed, note erratum 0133 */ } stat &= ~tmp; @@ -3374,7 +3368,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) /* clear any other status/irqs */ if (stat) - writel (stat, &dev->regs->irqstat1); + writel(stat, &dev->regs->irqstat1); /* some status we can just ignore */ if (dev->pdev->device == 0x2280) @@ -3390,7 +3384,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) if (!stat) return; - // DEBUG (dev, "irqstat1 %08x\n", stat); + /* DEBUG(dev, "irqstat1 %08x\n", stat);*/ /* DMA status, for ep-{a,b,c,d} */ scratch = stat & DMA_INTERRUPTS; @@ -3404,15 +3398,15 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) continue; scratch ^= tmp; - ep = &dev->ep [num + 1]; + ep = &dev->ep[num + 1]; dma = ep->dma; if (!dma) continue; /* clear ep's dma status */ - tmp = readl (&dma->dmastat); - writel (tmp, &dma->dmastat); + tmp = readl(&dma->dmastat); + writel(tmp, &dma->dmastat); /* dma sync*/ if (dev->pdev->vendor == PCI_VENDOR_ID_PLX) { @@ -3427,11 +3421,11 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) */ if (!use_dma_chaining) { if (!(tmp & BIT(DMA_TRANSACTION_DONE_INTERRUPT))) { - DEBUG (ep->dev, "%s no xact done? %08x\n", + DEBUG(ep->dev, "%s no xact done? %08x\n", ep->ep.name, tmp); continue; } - stop_dma (ep->dma); + stop_dma(ep->dma); } /* OUT transfers terminate when the data from the @@ -3444,16 +3438,16 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) * long time ... we ignore that for now, accounting * precisely (like PIO does) needs per-packet irqs */ - scan_dma_completions (ep); + scan_dma_completions(ep); /* disable dma on inactive queues; else maybe restart */ - if (list_empty (&ep->queue)) { + if (list_empty(&ep->queue)) { if (use_dma_chaining) - stop_dma (ep->dma); + stop_dma(ep->dma); } else { - tmp = readl (&dma->dmactl); + tmp = readl(&dma->dmactl); if (!use_dma_chaining || (tmp & BIT(DMA_ENABLE)) == 0) - restart_dma (ep); + restart_dma(ep); else if (ep->is_in && use_dma_chaining) { struct net2280_request *req; __le32 dmacount; @@ -3463,13 +3457,13 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) * used to trigger changing DMA_FIFO_VALIDATE * (affects automagic zlp writes). */ - req = list_entry (ep->queue.next, + req = list_entry(ep->queue.next, struct net2280_request, queue); dmacount = req->td->dmacount; dmacount &= cpu_to_le32(BIT(VALID_BIT) | DMA_BYTE_COUNT_MASK); if (dmacount && (dmacount & valid_bit) == 0) - restart_dma (ep); + restart_dma(ep); } } ep->irqs++; @@ -3479,21 +3473,21 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) * if they appear very often, here's where to try recovering. */ if (stat & PCI_ERROR_INTERRUPTS) { - ERROR (dev, "pci dma error; stat %08x\n", stat); + ERROR(dev, "pci dma error; stat %08x\n", stat); stat &= ~PCI_ERROR_INTERRUPTS; /* these are fatal errors, but "maybe" they won't * happen again ... */ - stop_activity (dev, dev->driver); - ep0_start (dev); + stop_activity(dev, dev->driver); + ep0_start(dev); stat = 0; } if (stat) - DEBUG (dev, "unhandled irqstat1 %08x\n", stat); + DEBUG(dev, "unhandled irqstat1 %08x\n", stat); } -static irqreturn_t net2280_irq (int irq, void *_dev) +static irqreturn_t net2280_irq(int irq, void *_dev) { struct net2280 *dev = _dev; @@ -3502,13 +3496,13 @@ static irqreturn_t net2280_irq (int irq, void *_dev) (!(readl(&dev->regs->irqstat0) & BIT(INTA_ASSERTED)))) return IRQ_NONE; - spin_lock (&dev->lock); + spin_lock(&dev->lock); /* handle disconnect, dma, and more */ - handle_stat1_irqs (dev, readl (&dev->regs->irqstat1)); + handle_stat1_irqs(dev, readl(&dev->regs->irqstat1)); /* control requests and PIO */ - handle_stat0_irqs (dev, readl (&dev->regs->irqstat0)); + handle_stat0_irqs(dev, readl(&dev->regs->irqstat0)); if (dev->pdev->vendor == PCI_VENDOR_ID_PLX) { /* re-enable interrupt to trigger any possible new interrupt */ @@ -3517,54 +3511,54 @@ static irqreturn_t net2280_irq (int irq, void *_dev) writel(pciirqenb1, &dev->regs->pciirqenb1); } - spin_unlock (&dev->lock); + spin_unlock(&dev->lock); return IRQ_HANDLED; } /*-------------------------------------------------------------------------*/ -static void gadget_release (struct device *_dev) +static void gadget_release(struct device *_dev) { - struct net2280 *dev = dev_get_drvdata (_dev); + struct net2280 *dev = dev_get_drvdata(_dev); - kfree (dev); + kfree(dev); } /* tear down the binding between this driver and the pci device */ -static void net2280_remove (struct pci_dev *pdev) +static void net2280_remove(struct pci_dev *pdev) { - struct net2280 *dev = pci_get_drvdata (pdev); + struct net2280 *dev = pci_get_drvdata(pdev); usb_del_gadget_udc(&dev->gadget); BUG_ON(dev->driver); /* then clean up the resources we allocated during probe() */ - net2280_led_shutdown (dev); + net2280_led_shutdown(dev); if (dev->requests) { int i; for (i = 1; i < 5; i++) { - if (!dev->ep [i].dummy) + if (!dev->ep[i].dummy) continue; - pci_pool_free (dev->requests, dev->ep [i].dummy, - dev->ep [i].td_dma); + pci_pool_free(dev->requests, dev->ep[i].dummy, + dev->ep[i].td_dma); } - pci_pool_destroy (dev->requests); + pci_pool_destroy(dev->requests); } if (dev->got_irq) - free_irq (pdev->irq, dev); + free_irq(pdev->irq, dev); if (use_msi && dev->pdev->vendor == PCI_VENDOR_ID_PLX) pci_disable_msi(pdev); if (dev->regs) - iounmap (dev->regs); + iounmap(dev->regs); if (dev->region) - release_mem_region (pci_resource_start (pdev, 0), - pci_resource_len (pdev, 0)); + release_mem_region(pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)); if (dev->enabled) - pci_disable_device (pdev); - device_remove_file (&pdev->dev, &dev_attr_registers); + pci_disable_device(pdev); + device_remove_file(&pdev->dev, &dev_attr_registers); INFO (dev, "unbind\n"); } @@ -3573,7 +3567,7 @@ static void net2280_remove (struct pci_dev *pdev) * don't respond over USB until a gadget driver binds to us. */ -static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) +static int net2280_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct net2280 *dev; unsigned long resource, len; @@ -3584,14 +3578,14 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) use_dma_chaining = 0; /* alloc, and start init */ - dev = kzalloc (sizeof *dev, GFP_KERNEL); - if (dev == NULL){ + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (dev == NULL) { retval = -ENOMEM; goto done; } - pci_set_drvdata (pdev, dev); - spin_lock_init (&dev->lock); + pci_set_drvdata(pdev, dev); + spin_lock_init(&dev->lock); dev->pdev = pdev; dev->gadget.ops = &net2280_ops; dev->gadget.max_speed = (dev->pdev->vendor == PCI_VENDOR_ID_PLX) ? @@ -3601,8 +3595,8 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) dev->gadget.name = driver_name; /* now all the pci goodies ... */ - if (pci_enable_device (pdev) < 0) { - retval = -ENODEV; + if (pci_enable_device(pdev) < 0) { + retval = -ENODEV; goto done; } dev->enabled = 1; @@ -3611,10 +3605,10 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) * BAR 1 is 8051 memory; unused here (note erratum 0103) * BAR 2 is fifo memory; unused here */ - resource = pci_resource_start (pdev, 0); - len = pci_resource_len (pdev, 0); - if (!request_mem_region (resource, len, driver_name)) { - DEBUG (dev, "controller already in use\n"); + resource = pci_resource_start(pdev, 0); + len = pci_resource_len(pdev, 0); + if (!request_mem_region(resource, len, driver_name)) { + DEBUG(dev, "controller already in use\n"); retval = -EBUSY; goto done; } @@ -3624,9 +3618,9 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) * 8051 code into the chip, e.g. to turn on PCI PM. */ - base = ioremap_nocache (resource, len); + base = ioremap_nocache(resource, len); if (base == NULL) { - DEBUG (dev, "can't map memory\n"); + DEBUG(dev, "can't map memory\n"); retval = -EFAULT; goto done; } @@ -3655,7 +3649,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) dev->plregs = (struct usb338x_pl_regs __iomem *) (base + 0x0800); usbstat = readl(&dev->usb->usbstat); - dev->enhanced_mode = (usbstat & BIT(11)) ? 1 : 0; + dev->enhanced_mode = !!(usbstat & BIT(11)); dev->n_ep = (dev->enhanced_mode) ? 9 : 5; /* put into initial config, link up all endpoints */ fsmvalue = get_idx_reg(dev->regs, SCRATCH) & @@ -3670,12 +3664,12 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) writel(0, &dev->usb->usbctl); } - usb_reset (dev); - usb_reinit (dev); + usb_reset(dev); + usb_reinit(dev); /* irq setup after old hardware is cleaned up */ if (!pdev->irq) { - ERROR (dev, "No IRQ. Check PCI setup!\n"); + ERROR(dev, "No IRQ. Check PCI setup!\n"); retval = -ENODEV; goto done; } @@ -3684,9 +3678,9 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) if (pci_enable_msi(pdev)) ERROR(dev, "Failed to enable MSI mode\n"); - if (request_irq (pdev->irq, net2280_irq, IRQF_SHARED, driver_name, dev) - != 0) { - ERROR (dev, "request interrupt %d failed\n", pdev->irq); + if (request_irq(pdev->irq, net2280_irq, IRQF_SHARED, + driver_name, dev)) { + ERROR(dev, "request interrupt %d failed\n", pdev->irq); retval = -EBUSY; goto done; } @@ -3694,28 +3688,28 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) /* DMA setup */ /* NOTE: we know only the 32 LSBs of dma addresses may be nonzero */ - dev->requests = pci_pool_create ("requests", pdev, - sizeof (struct net2280_dma), + dev->requests = pci_pool_create("requests", pdev, + sizeof(struct net2280_dma), 0 /* no alignment requirements */, 0 /* or page-crossing issues */); if (!dev->requests) { - DEBUG (dev, "can't get request pool\n"); + DEBUG(dev, "can't get request pool\n"); retval = -ENOMEM; goto done; } for (i = 1; i < 5; i++) { struct net2280_dma *td; - td = pci_pool_alloc (dev->requests, GFP_KERNEL, - &dev->ep [i].td_dma); + td = pci_pool_alloc(dev->requests, GFP_KERNEL, + &dev->ep[i].td_dma); if (!td) { - DEBUG (dev, "can't get dummy %d\n", i); + DEBUG(dev, "can't get dummy %d\n", i); retval = -ENOMEM; goto done; } td->dmacount = 0; /* not VALID */ td->dmadesc = td->dmaaddr; - dev->ep [i].dummy = td; + dev->ep[i].dummy = td; } /* enable lower-overhead pci memory bursts during DMA */ @@ -3729,22 +3723,23 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) BIT(DMA_READ_LINE_ENABLE), &dev->pci->pcimstctl); /* erratum 0115 shouldn't appear: Linux inits PCI_LATENCY_TIMER */ - pci_set_master (pdev); - pci_try_set_mwi (pdev); + pci_set_master(pdev); + pci_try_set_mwi(pdev); /* ... also flushes any posted pci writes */ - dev->chiprev = get_idx_reg (dev->regs, REG_CHIPREV) & 0xffff; + dev->chiprev = get_idx_reg(dev->regs, REG_CHIPREV) & 0xffff; /* done */ - INFO (dev, "%s\n", driver_desc); - INFO (dev, "irq %d, pci mem %p, chip rev %04x\n", + INFO(dev, "%s\n", driver_desc); + INFO(dev, "irq %d, pci mem %p, chip rev %04x\n", pdev->irq, base, dev->chiprev); INFO(dev, "version: " DRIVER_VERSION "; dma %s %s\n", use_dma ? (use_dma_chaining ? "chaining" : "enabled") : "disabled", dev->enhanced_mode ? "enhanced mode" : "legacy mode"); - retval = device_create_file (&pdev->dev, &dev_attr_registers); - if (retval) goto done; + retval = device_create_file(&pdev->dev, &dev_attr_registers); + if (retval) + goto done; retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget, gadget_release); @@ -3754,7 +3749,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) done: if (dev) - net2280_remove (pdev); + net2280_remove(pdev); return retval; } @@ -3762,16 +3757,16 @@ done: * generating IRQs across the upcoming reboot. */ -static void net2280_shutdown (struct pci_dev *pdev) +static void net2280_shutdown(struct pci_dev *pdev) { - struct net2280 *dev = pci_get_drvdata (pdev); + struct net2280 *dev = pci_get_drvdata(pdev); /* disable IRQs */ - writel (0, &dev->regs->pciirqenb0); - writel (0, &dev->regs->pciirqenb1); + writel(0, &dev->regs->pciirqenb0); + writel(0, &dev->regs->pciirqenb1); /* disable the pullup so the host will think we're gone */ - writel (0, &dev->usb->usbctl); + writel(0, &dev->usb->usbctl); /* Disable full-speed test mode */ if (dev->pdev->vendor == PCI_VENDOR_ID_PLX_LEGACY) @@ -3781,7 +3776,7 @@ static void net2280_shutdown (struct pci_dev *pdev) /*-------------------------------------------------------------------------*/ -static const struct pci_device_id pci_ids [] = { { +static const struct pci_device_id pci_ids[] = { { .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), .class_mask = ~0, .vendor = PCI_VENDOR_ID_PLX_LEGACY, @@ -3814,7 +3809,7 @@ static const struct pci_device_id pci_ids [] = { { }, { /* end: all zeroes */ } }; -MODULE_DEVICE_TABLE (pci, pci_ids); +MODULE_DEVICE_TABLE(pci, pci_ids); /* pci driver glue; this is a "new style" PCI driver module */ static struct pci_driver net2280_pci_driver = { @@ -3830,6 +3825,6 @@ static struct pci_driver net2280_pci_driver = { module_pci_driver(net2280_pci_driver); -MODULE_DESCRIPTION (DRIVER_DESC); -MODULE_AUTHOR ("David Brownell"); -MODULE_LICENSE ("GPL"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("David Brownell"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h index e1c5d1a5a7d0..f019d6c74fc3 100644 --- a/drivers/usb/gadget/net2280.h +++ b/drivers/usb/gadget/net2280.h @@ -25,19 +25,18 @@ * caller must own the device lock. */ -static inline u32 -get_idx_reg (struct net2280_regs __iomem *regs, u32 index) +static inline u32 get_idx_reg(struct net2280_regs __iomem *regs, u32 index) { - writel (index, ®s->idxaddr); + writel(index, ®s->idxaddr); /* NOTE: synchs device/cpu memory views */ - return readl (®s->idxdata); + return readl(®s->idxdata); } static inline void -set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value) +set_idx_reg(struct net2280_regs __iomem *regs, u32 index, u32 value) { - writel (index, ®s->idxaddr); - writel (value, ®s->idxdata); + writel(index, ®s->idxaddr); + writel(value, ®s->idxdata); /* posted, may not be visible yet */ } @@ -81,7 +80,7 @@ struct net2280_dma { __le32 dmaaddr; /* the buffer */ __le32 dmadesc; /* next dma descriptor */ __le32 _reserved; -} __attribute__ ((aligned (16))); +} __aligned(16); /*-------------------------------------------------------------------------*/ @@ -113,7 +112,7 @@ struct net2280_ep { responded : 1; }; -static inline void allow_status (struct net2280_ep *ep) +static inline void allow_status(struct net2280_ep *ep) { /* ep0 only */ writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) | @@ -152,7 +151,7 @@ struct net2280 { struct usb_gadget gadget; spinlock_t lock; struct net2280_ep ep[9]; - struct usb_gadget_driver *driver; + struct usb_gadget_driver *driver; unsigned enabled : 1, protocol_stall : 1, softconnect : 1, @@ -185,10 +184,10 @@ struct net2280 { struct usb338x_pl_regs __iomem *plregs; struct pci_pool *requests; - // statistics... + /* statistics...*/ }; -static inline void set_halt (struct net2280_ep *ep) +static inline void set_halt(struct net2280_ep *ep) { /* ep0 and bulk/intr endpoints */ writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) | @@ -198,7 +197,7 @@ static inline void set_halt (struct net2280_ep *ep) &ep->regs->ep_rsp); } -static inline void clear_halt (struct net2280_ep *ep) +static inline void clear_halt(struct net2280_ep *ep) { /* ep0 and bulk/intr endpoints */ writel(BIT(CLEAR_ENDPOINT_HALT) | @@ -250,7 +249,7 @@ static inline void clear_halt (struct net2280_ep *ep) #ifdef USE_RDK_LEDS -static inline void net2280_led_init (struct net2280 *dev) +static inline void net2280_led_init(struct net2280 *dev) { /* LED3 (green) is on during USB activity. note erratum 0113. */ writel(BIT(GPIO3_LED_SELECT) | @@ -263,9 +262,9 @@ static inline void net2280_led_init (struct net2280 *dev) /* indicate speed with bi-color LED 0/1 */ static inline -void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed) +void net2280_led_speed(struct net2280 *dev, enum usb_device_speed speed) { - u32 val = readl (&dev->regs->gpioctl); + u32 val = readl(&dev->regs->gpioctl); switch (speed) { case USB_SPEED_SUPER: /* green + red */ val |= BIT(GPIO0_DATA) | BIT(GPIO1_DATA); @@ -282,25 +281,26 @@ void net2280_led_speed (struct net2280 *dev, enum usb_device_speed speed) val &= ~(BIT(GPIO1_DATA) | BIT(GPIO0_DATA)); break; } - writel (val, &dev->regs->gpioctl); + writel(val, &dev->regs->gpioctl); } /* indicate power with LED 2 */ -static inline void net2280_led_active (struct net2280 *dev, int is_active) +static inline void net2280_led_active(struct net2280 *dev, int is_active) { - u32 val = readl (&dev->regs->gpioctl); + u32 val = readl(&dev->regs->gpioctl); - // FIXME this LED never seems to turn on. + /* FIXME this LED never seems to turn on.*/ if (is_active) val |= GPIO2_DATA; else val &= ~GPIO2_DATA; - writel (val, &dev->regs->gpioctl); + writel(val, &dev->regs->gpioctl); } -static inline void net2280_led_shutdown (struct net2280 *dev) + +static inline void net2280_led_shutdown(struct net2280 *dev) { /* turn off all four GPIO*_DATA bits */ - writel (readl (&dev->regs->gpioctl) & ~0x0f, + writel(readl(&dev->regs->gpioctl) & ~0x0f, &dev->regs->gpioctl); } @@ -314,32 +314,32 @@ static inline void net2280_led_shutdown (struct net2280 *dev) /*-------------------------------------------------------------------------*/ -#define xprintk(dev,level,fmt,args...) \ - printk(level "%s %s: " fmt , driver_name , \ - pci_name(dev->pdev) , ## args) +#define xprintk(dev, level, fmt, args...) \ + printk(level "%s %s: " fmt, driver_name, \ + pci_name(dev->pdev), ## args) #ifdef DEBUG #undef DEBUG -#define DEBUG(dev,fmt,args...) \ - xprintk(dev , KERN_DEBUG , fmt , ## args) +#define DEBUG(dev, fmt, args...) \ + xprintk(dev, KERN_DEBUG, fmt, ## args) #else -#define DEBUG(dev,fmt,args...) \ +#define DEBUG(dev, fmt, args...) \ do { } while (0) -#endif /* DEBUG */ +#endif /* DEBUG*/ #ifdef VERBOSE #define VDEBUG DEBUG #else -#define VDEBUG(dev,fmt,args...) \ +#define VDEBUG(dev, fmt, args...) \ do { } while (0) #endif /* VERBOSE */ -#define ERROR(dev,fmt,args...) \ - xprintk(dev , KERN_ERR , fmt , ## args) -#define WARNING(dev,fmt,args...) \ - xprintk(dev , KERN_WARNING , fmt , ## args) -#define INFO(dev,fmt,args...) \ - xprintk(dev , KERN_INFO , fmt , ## args) +#define ERROR(dev, fmt, args...) \ + xprintk(dev, KERN_ERR, fmt, ## args) +#define WARNING(dev, fmt, args...) \ + xprintk(dev, KERN_WARNING, fmt, ## args) +#define INFO(dev, fmt, args...) \ + xprintk(dev, KERN_INFO, fmt, ## args) /*-------------------------------------------------------------------------*/ @@ -354,36 +354,36 @@ static inline void set_fifo_bytecount(struct net2280_ep *ep, unsigned count) } } -static inline void start_out_naking (struct net2280_ep *ep) +static inline void start_out_naking(struct net2280_ep *ep) { /* NOTE: hardware races lurk here, and PING protocol issues */ writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp); /* synch with device */ - readl (&ep->regs->ep_rsp); + readl(&ep->regs->ep_rsp); } #ifdef DEBUG -static inline void assert_out_naking (struct net2280_ep *ep, const char *where) +static inline void assert_out_naking(struct net2280_ep *ep, const char *where) { - u32 tmp = readl (&ep->regs->ep_stat); + u32 tmp = readl(&ep->regs->ep_stat); if ((tmp & BIT(NAK_OUT_PACKETS)) == 0) { - DEBUG (ep->dev, "%s %s %08x !NAK\n", + DEBUG(ep->dev, "%s %s %08x !NAK\n", ep->ep.name, where, tmp); writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp); } } -#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep,__func__) +#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep, __func__) #else #define ASSERT_OUT_NAKING(ep) do {} while (0) #endif -static inline void stop_out_naking (struct net2280_ep *ep) +static inline void stop_out_naking(struct net2280_ep *ep) { u32 tmp; - tmp = readl (&ep->regs->ep_stat); + tmp = readl(&ep->regs->ep_stat); if ((tmp & BIT(NAK_OUT_PACKETS)) != 0) writel(BIT(CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp); } |