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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 10:49:05 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-07 10:49:05 +0200
commit0b8e74c6f44094189dbe78baf4101acc7570c6af (patch)
tree6440561d09fb71ba5928664604ec92f29940be6b /drivers/media/rc
parentMerge tag 'for-v3.7' of git://git.infradead.org/users/cbou/linux-pstore (diff)
parentMerge branch 'staging/for_v3.7' into v4l_for_linus (diff)
downloadlinux-0b8e74c6f44094189dbe78baf4101acc7570c6af.tar.xz
linux-0b8e74c6f44094189dbe78baf4101acc7570c6af.zip
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: "The first part of the media updates for Kernel 3.7. This series contain: - A major tree renaming patch series: now, drivers are organized internally by their used bus, instead of by V4L2 and/or DVB API, providing a cleaner driver location for hybrid drivers that implement both APIs, and allowing to cleanup the Kconfig items and make them more intuitive for the end user; - Media Kernel developers are typically very lazy with their duties of keeping the MAINTAINERS entries for their drivers updated. As now the tree is more organized, we're doing an effort to add/update those entries for the drivers that aren't currently orphan; - Several DVB USB drivers got moved to a new DVB USB v2 core; the new core fixes several bugs (as the existing one that got bitroted). Now, suspend/resume finally started to work fine (at least with some devices - we should expect more work with regards to it); - added multistream support for DVB-T2, and unified the API for DVB-S2 and ISDB-S. Backward binary support is preserved; - as usual, a few new drivers, some V4L2 core improvements and lots of drivers improvements and fixes. There are some points to notice on this series: 1) you should expect a trivial merge conflict on your tree, with the removal of Documentation/feature-removal-schedule.txt: this series would be adding two additional entries there. I opted to not rebase it due to this recent change; 2) With regards to the PCTV 520e udev-related breakage, I opted to fix it in a way that the patches can be backported to 3.5 even without your firmware fix patch. This way, Greg doesn't need to rush backporting your patch (as there are still the firmware cache and firmware path customization issues to be addressed there). I'll send later a patch (likely after the end of the merge window) reverting the rest of the DRX-K async firmware request, fully restoring its original behaviour to allow media drivers to initialize everything serialized as before for 3.7 and upper. 3) I'm planning to work on this weekend to test the DMABUF patches for V4L2. The patches are on my queue for several Kernel cycles, but, up to now, there is/was no way to test the series locally. I have some concerns about this particular changeset with regards to security issues, and with regards to the replacement of the old VIDIOC_OVERLAY ioctl's that is broken on modern systems, due to GPU drivers change. The Overlay API allows direct PCI2PCI transfers from a media capture card into the GPU framebuffer, but its API is crappy. Also, the only existing X11 driver that implements it requires a XV extension that is not available anymore on modern drivers. The DMABUF can do the same thing, but with it is promising to be a properly-designed API. If I can successfully test this series and be happy with it, I should be asking you to pull them next week." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (717 commits) em28xx: regression fix: use DRX-K sync firmware requests on em28xx drxk: allow loading firmware synchrousnously em28xx: Make all em28xx extensions to be initialized asynchronously [media] tda18271: properly report read errors in tda18271_get_id [media] tda18271: delay IR & RF calibration until init() if delay_cal is set [media] MAINTAINERS: add Michael Krufky as tda827x maintainer [media] MAINTAINERS: add Michael Krufky as tda8290 maintainer [media] MAINTAINERS: add Michael Krufky as cxusb maintainer [media] MAINTAINERS: add Michael Krufky as lg2160 maintainer [media] MAINTAINERS: add Michael Krufky as lgdt3305 maintainer [media] MAINTAINERS: add Michael Krufky as mxl111sf maintainer [media] MAINTAINERS: add Michael Krufky as mxl5007t maintainer [media] MAINTAINERS: add Michael Krufky as tda18271 maintainer [media] s5p-tv: Report only multi-plane capabilities in vidioc_querycap [media] s5p-mfc: Fix misplaced return statement in s5p_mfc_suspend() [media] exynos-gsc: Add missing static storage class specifiers [media] exynos-gsc: Remove <linux/version.h> header file inclusion [media] s5p-fimc: Fix incorrect condition in fimc_lite_reqbufs() [media] s5p-tv: Fix potential NULL pointer dereference error [media] s5k6aa: Fix possible NULL pointer dereference ...
Diffstat (limited to 'drivers/media/rc')
-rw-r--r--drivers/media/rc/Kconfig32
-rw-r--r--drivers/media/rc/Makefile2
-rw-r--r--drivers/media/rc/ati_remote.c15
-rw-r--r--drivers/media/rc/fintek-cir.c11
-rw-r--r--drivers/media/rc/iguanair.c247
-rw-r--r--drivers/media/rc/ir-lirc-codec.c35
-rw-r--r--drivers/media/rc/ir-nec-decoder.c4
-rw-r--r--drivers/media/rc/ir-raw.c6
-rw-r--r--drivers/media/rc/ir-rx51.c498
-rw-r--r--drivers/media/rc/ite-cir.c2
-rw-r--r--drivers/media/rc/keymaps/rc-tt-1500.c2
-rw-r--r--drivers/media/rc/mceusb.c30
-rw-r--r--drivers/media/rc/rc-loopback.c12
-rw-r--r--drivers/media/rc/redrat3.c5
-rw-r--r--drivers/media/rc/ttusbir.c447
-rw-r--r--drivers/media/rc/winbond-cir.c49
16 files changed, 1172 insertions, 225 deletions
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 8be57634ba60..79ba242fe263 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -265,12 +265,40 @@ config IR_IGUANA
depends on RC_CORE
select USB
---help---
- Say Y here if you want to use the IgaunaWorks USB IR Transceiver.
- Both infrared receive and send are supported.
+ Say Y here if you want to use the IguanaWorks USB IR Transceiver.
+ Both infrared receive and send are supported. If you want to
+ change the ID or the pin config, use the user space driver from
+ IguanaWorks.
+
+ Only firmware 0x0205 and later is supported.
To compile this driver as a module, choose M here: the module will
be called iguanair.
+config IR_TTUSBIR
+ tristate "TechnoTrend USB IR Receiver"
+ depends on USB_ARCH_HAS_HCD
+ depends on RC_CORE
+ select USB
+ select NEW_LEDS
+ select LEDS_CLASS
+ ---help---
+ Say Y here if you want to use the TechnoTrend USB IR Receiver. The
+ driver can control the led.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ttusbir.
+
+config IR_RX51
+ tristate "Nokia N900 IR transmitter diode"
+ depends on OMAP_DM_TIMER && LIRC
+ ---help---
+ Say Y or M here if you want to enable support for the IR
+ transmitter diode built in the Nokia N900 (RX51) device.
+
+ The driver uses omap DM timers for generating the carrier
+ wave and pulses.
+
config RC_LOOPBACK
tristate "Remote Control Loopback Driver"
depends on RC_CORE
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index f871d1986c21..56bacf07b361 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -23,8 +23,10 @@ obj-$(CONFIG_IR_FINTEK) += fintek-cir.o
obj-$(CONFIG_IR_NUVOTON) += nuvoton-cir.o
obj-$(CONFIG_IR_ENE) += ene_ir.o
obj-$(CONFIG_IR_REDRAT3) += redrat3.o
+obj-$(CONFIG_IR_RX51) += ir-rx51.o
obj-$(CONFIG_IR_STREAMZAP) += streamzap.o
obj-$(CONFIG_IR_WINBOND_CIR) += winbond-cir.o
obj-$(CONFIG_RC_LOOPBACK) += rc-loopback.o
obj-$(CONFIG_IR_GPIO_CIR) += gpio-ir-recv.o
obj-$(CONFIG_IR_IGUANA) += iguanair.o
+obj-$(CONFIG_IR_TTUSBIR) += ttusbir.o
diff --git a/drivers/media/rc/ati_remote.c b/drivers/media/rc/ati_remote.c
index 8fa72e2dacb1..49bb356ed14c 100644
--- a/drivers/media/rc/ati_remote.c
+++ b/drivers/media/rc/ati_remote.c
@@ -331,13 +331,9 @@ static void ati_remote_dump(struct device *dev, unsigned char *data,
if (data[0] != (unsigned char)0xff && data[0] != 0x00)
dev_warn(dev, "Weird byte 0x%02x\n", data[0]);
} else if (len == 4)
- dev_warn(dev, "Weird key %02x %02x %02x %02x\n",
- data[0], data[1], data[2], data[3]);
+ dev_warn(dev, "Weird key %*ph\n", 4, data);
else
- dev_warn(dev,
- "Weird data, len=%d %02x %02x %02x %02x %02x %02x ...\n",
- len, data[0], data[1], data[2], data[3], data[4],
- data[5]);
+ dev_warn(dev, "Weird data, len=%d %*ph ...\n", len, 6, data);
}
/*
@@ -519,8 +515,7 @@ static void ati_remote_input_report(struct urb *urb)
if (data[1] != ((data[2] + data[3] + 0xd5) & 0xff)) {
dbginfo(&ati_remote->interface->dev,
- "wrong checksum in input: %02x %02x %02x %02x\n",
- data[0], data[1], data[2], data[3]);
+ "wrong checksum in input: %*ph\n", 4, data);
return;
}
@@ -942,8 +937,10 @@ static int ati_remote_probe(struct usb_interface *interface,
/* Set up and register mouse input device */
if (mouse) {
input_dev = input_allocate_device();
- if (!input_dev)
+ if (!input_dev) {
+ err = -ENOMEM;
goto fail4;
+ }
ati_remote->idev = input_dev;
ati_remote_input_init(ati_remote);
diff --git a/drivers/media/rc/fintek-cir.c b/drivers/media/rc/fintek-cir.c
index ab30c64f8124..52fd7696b1ba 100644
--- a/drivers/media/rc/fintek-cir.c
+++ b/drivers/media/rc/fintek-cir.c
@@ -295,6 +295,7 @@ static void fintek_process_rx_ir_data(struct fintek_dev *fintek)
{
DEFINE_IR_RAW_EVENT(rawir);
u8 sample;
+ bool event = false;
int i;
for (i = 0; i < fintek->pkts; i++) {
@@ -332,7 +333,9 @@ static void fintek_process_rx_ir_data(struct fintek_dev *fintek)
fit_dbg("Storing %s with duration %d",
rawir.pulse ? "pulse" : "space",
rawir.duration);
- ir_raw_event_store_with_filter(fintek->rdev, &rawir);
+ if (ir_raw_event_store_with_filter(fintek->rdev,
+ &rawir))
+ event = true;
break;
}
@@ -342,8 +345,10 @@ static void fintek_process_rx_ir_data(struct fintek_dev *fintek)
fintek->pkts = 0;
- fit_dbg("Calling ir_raw_event_handle");
- ir_raw_event_handle(fintek->rdev);
+ if (event) {
+ fit_dbg("Calling ir_raw_event_handle");
+ ir_raw_event_handle(fintek->rdev);
+ }
}
/* copy data from hardware rx register into driver buffer */
diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c
index 5e2eaf8ba73e..1e4c68a5cecf 100644
--- a/drivers/media/rc/iguanair.c
+++ b/drivers/media/rc/iguanair.c
@@ -35,9 +35,9 @@ struct iguanair {
struct device *dev;
struct usb_device *udev;
- int pipe_in, pipe_out;
+ int pipe_out;
+ uint16_t version;
uint8_t bufsize;
- uint8_t version[2];
struct mutex lock;
@@ -75,6 +75,7 @@ struct iguanair {
#define MAX_PACKET_SIZE 8u
#define TIMEOUT 1000
+#define RX_RESOLUTION 21333
struct packet {
uint16_t start;
@@ -82,11 +83,6 @@ struct packet {
uint8_t cmd;
};
-struct response_packet {
- struct packet header;
- uint8_t data[4];
-};
-
struct send_packet {
struct packet header;
uint8_t length;
@@ -100,6 +96,25 @@ static void process_ir_data(struct iguanair *ir, unsigned len)
{
if (len >= 4 && ir->buf_in[0] == 0 && ir->buf_in[1] == 0) {
switch (ir->buf_in[3]) {
+ case CMD_GET_VERSION:
+ if (len == 6) {
+ ir->version = (ir->buf_in[5] << 8) |
+ ir->buf_in[4];
+ complete(&ir->completion);
+ }
+ break;
+ case CMD_GET_BUFSIZE:
+ if (len >= 5) {
+ ir->bufsize = ir->buf_in[4];
+ complete(&ir->completion);
+ }
+ break;
+ case CMD_GET_FEATURES:
+ if (len > 5) {
+ ir->cycle_overhead = ir->buf_in[5];
+ complete(&ir->completion);
+ }
+ break;
case CMD_TX_OVERFLOW:
ir->tx_overflow = true;
case CMD_RECEIVER_OFF:
@@ -109,6 +124,7 @@ static void process_ir_data(struct iguanair *ir, unsigned len)
break;
case CMD_RX_OVERFLOW:
dev_warn(ir->dev, "receive overflow\n");
+ ir_raw_event_reset(ir->rc);
break;
default:
dev_warn(ir->dev, "control code %02x received\n",
@@ -118,6 +134,7 @@ static void process_ir_data(struct iguanair *ir, unsigned len)
} else if (len >= 7) {
DEFINE_IR_RAW_EVENT(rawir);
unsigned i;
+ bool event = false;
init_ir_raw_event(&rawir);
@@ -128,19 +145,22 @@ static void process_ir_data(struct iguanair *ir, unsigned len)
} else {
rawir.pulse = (ir->buf_in[i] & 0x80) == 0;
rawir.duration = ((ir->buf_in[i] & 0x7f) + 1) *
- 21330;
+ RX_RESOLUTION;
}
- ir_raw_event_store_with_filter(ir->rc, &rawir);
+ if (ir_raw_event_store_with_filter(ir->rc, &rawir))
+ event = true;
}
- ir_raw_event_handle(ir->rc);
+ if (event)
+ ir_raw_event_handle(ir->rc);
}
}
static void iguanair_rx(struct urb *urb)
{
struct iguanair *ir;
+ int rc;
if (!urb)
return;
@@ -166,34 +186,27 @@ static void iguanair_rx(struct urb *urb)
break;
}
- usb_submit_urb(urb, GFP_ATOMIC);
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+ if (rc && rc != -ENODEV)
+ dev_warn(ir->dev, "failed to resubmit urb: %d\n", rc);
}
-static int iguanair_send(struct iguanair *ir, void *data, unsigned size,
- struct response_packet *response, unsigned *res_len)
+static int iguanair_send(struct iguanair *ir, void *data, unsigned size)
{
- unsigned offset, len;
int rc, transferred;
- for (offset = 0; offset < size; offset += MAX_PACKET_SIZE) {
- len = min(size - offset, MAX_PACKET_SIZE);
-
- if (ir->tx_overflow)
- return -EOVERFLOW;
+ INIT_COMPLETION(ir->completion);
- rc = usb_interrupt_msg(ir->udev, ir->pipe_out, data + offset,
- len, &transferred, TIMEOUT);
- if (rc)
- return rc;
+ rc = usb_interrupt_msg(ir->udev, ir->pipe_out, data, size,
+ &transferred, TIMEOUT);
+ if (rc)
+ return rc;
- if (transferred != len)
- return -EIO;
- }
+ if (transferred != size)
+ return -EIO;
- if (response) {
- rc = usb_interrupt_msg(ir->udev, ir->pipe_in, response,
- sizeof(*response), res_len, TIMEOUT);
- }
+ if (wait_for_completion_timeout(&ir->completion, TIMEOUT) == 0)
+ return -ETIMEDOUT;
return rc;
}
@@ -201,66 +214,43 @@ static int iguanair_send(struct iguanair *ir, void *data, unsigned size,
static int iguanair_get_features(struct iguanair *ir)
{
struct packet packet;
- struct response_packet response;
- int rc, len;
+ int rc;
packet.start = 0;
packet.direction = DIR_OUT;
packet.cmd = CMD_GET_VERSION;
- rc = iguanair_send(ir, &packet, sizeof(packet), &response, &len);
+ rc = iguanair_send(ir, &packet, sizeof(packet));
if (rc) {
dev_info(ir->dev, "failed to get version\n");
goto out;
}
- if (len != 6) {
- dev_info(ir->dev, "failed to get version\n");
- rc = -EIO;
+ if (ir->version < 0x205) {
+ dev_err(ir->dev, "firmware 0x%04x is too old\n", ir->version);
+ rc = -ENODEV;
goto out;
}
- ir->version[0] = response.data[0];
- ir->version[1] = response.data[1];
ir->bufsize = 150;
ir->cycle_overhead = 65;
packet.cmd = CMD_GET_BUFSIZE;
- rc = iguanair_send(ir, &packet, sizeof(packet), &response, &len);
+ rc = iguanair_send(ir, &packet, sizeof(packet));
if (rc) {
dev_info(ir->dev, "failed to get buffer size\n");
goto out;
}
- if (len != 5) {
- dev_info(ir->dev, "failed to get buffer size\n");
- rc = -EIO;
- goto out;
- }
-
- ir->bufsize = response.data[0];
-
- if (ir->version[0] == 0 || ir->version[1] == 0)
- goto out;
-
packet.cmd = CMD_GET_FEATURES;
- rc = iguanair_send(ir, &packet, sizeof(packet), &response, &len);
+ rc = iguanair_send(ir, &packet, sizeof(packet));
if (rc) {
dev_info(ir->dev, "failed to get features\n");
goto out;
}
- if (len < 5) {
- dev_info(ir->dev, "failed to get features\n");
- rc = -EIO;
- goto out;
- }
-
- if (len > 5 && ir->version[0] >= 4)
- ir->cycle_overhead = response.data[1];
-
out:
return rc;
}
@@ -269,17 +259,11 @@ static int iguanair_receiver(struct iguanair *ir, bool enable)
{
struct packet packet = { 0, DIR_OUT, enable ?
CMD_RECEIVER_ON : CMD_RECEIVER_OFF };
- int rc;
-
- INIT_COMPLETION(ir->completion);
- rc = iguanair_send(ir, &packet, sizeof(packet), NULL, NULL);
- if (rc)
- return rc;
-
- wait_for_completion_timeout(&ir->completion, TIMEOUT);
+ if (enable)
+ ir_raw_event_reset(ir->rc);
- return 0;
+ return iguanair_send(ir, &packet, sizeof(packet));
}
/*
@@ -350,26 +334,38 @@ static int iguanair_set_tx_mask(struct rc_dev *dev, uint32_t mask)
static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count)
{
struct iguanair *ir = dev->priv;
- uint8_t space, *payload;
- unsigned i, size, rc;
+ uint8_t space;
+ unsigned i, size, periods, bytes;
+ int rc;
struct send_packet *packet;
mutex_lock(&ir->lock);
- /* convert from us to carrier periods */
- for (i = size = 0; i < count; i++) {
- txbuf[i] = DIV_ROUND_CLOSEST(txbuf[i] * ir->carrier, 1000000);
- size += (txbuf[i] + 126) / 127;
- }
-
- packet = kmalloc(sizeof(*packet) + size, GFP_KERNEL);
+ packet = kmalloc(sizeof(*packet) + ir->bufsize, GFP_KERNEL);
if (!packet) {
rc = -ENOMEM;
goto out;
}
- if (size > ir->bufsize) {
- rc = -E2BIG;
+ /* convert from us to carrier periods */
+ for (i = space = size = 0; i < count; i++) {
+ periods = DIV_ROUND_CLOSEST(txbuf[i] * ir->carrier, 1000000);
+ bytes = DIV_ROUND_UP(periods, 127);
+ if (size + bytes > ir->bufsize) {
+ count = i;
+ break;
+ }
+ while (periods > 127) {
+ packet->payload[size++] = 127 | space;
+ periods -= 127;
+ }
+
+ packet->payload[size++] = periods | space;
+ space ^= 0x80;
+ }
+
+ if (count == 0) {
+ rc = -EINVAL;
goto out;
}
@@ -381,21 +377,6 @@ static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count)
packet->busy7 = ir->busy7;
packet->busy4 = ir->busy4;
- space = 0;
- payload = packet->payload;
-
- for (i = 0; i < count; i++) {
- unsigned periods = txbuf[i];
-
- while (periods > 127) {
- *payload++ = 127 | space;
- periods -= 127;
- }
-
- *payload++ = periods | space;
- space ^= 0x80;
- }
-
if (ir->receiver_on) {
rc = iguanair_receiver(ir, false);
if (rc) {
@@ -406,17 +387,10 @@ static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count)
ir->tx_overflow = false;
- INIT_COMPLETION(ir->completion);
+ rc = iguanair_send(ir, packet, size + 8);
- rc = iguanair_send(ir, packet, size + 8, NULL, NULL);
-
- if (rc == 0) {
- wait_for_completion_timeout(&ir->completion, TIMEOUT);
- if (ir->tx_overflow)
- rc = -EOVERFLOW;
- }
-
- ir->tx_overflow = false;
+ if (rc == 0 && ir->tx_overflow)
+ rc = -EOVERFLOW;
if (ir->receiver_on) {
if (iguanair_receiver(ir, true))
@@ -424,10 +398,10 @@ static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count)
}
out:
- mutex_unlock(&ir->lock);
kfree(packet);
+ mutex_unlock(&ir->lock);
- return rc;
+ return rc ? rc : count;
}
static int iguanair_open(struct rc_dev *rdev)
@@ -437,8 +411,6 @@ static int iguanair_open(struct rc_dev *rdev)
mutex_lock(&ir->lock);
- usb_submit_urb(ir->urb_in, GFP_KERNEL);
-
BUG_ON(ir->receiver_on);
rc = iguanair_receiver(ir, true);
@@ -459,11 +431,9 @@ static void iguanair_close(struct rc_dev *rdev)
rc = iguanair_receiver(ir, false);
ir->receiver_on = false;
- if (rc)
+ if (rc && rc != -ENODEV)
dev_warn(ir->dev, "failed to disable receiver: %d\n", rc);
- usb_kill_urb(ir->urb_in);
-
mutex_unlock(&ir->lock);
}
@@ -473,22 +443,22 @@ static int __devinit iguanair_probe(struct usb_interface *intf,
struct usb_device *udev = interface_to_usbdev(intf);
struct iguanair *ir;
struct rc_dev *rc;
- int ret;
+ int ret, pipein;
struct usb_host_interface *idesc;
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
rc = rc_allocate_device();
if (!ir || !rc) {
- ret = ENOMEM;
+ ret = -ENOMEM;
goto out;
}
- ir->buf_in = usb_alloc_coherent(udev, MAX_PACKET_SIZE, GFP_ATOMIC,
+ ir->buf_in = usb_alloc_coherent(udev, MAX_PACKET_SIZE, GFP_KERNEL,
&ir->dma_in);
ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
if (!ir->buf_in || !ir->urb_in) {
- ret = ENOMEM;
+ ret = -ENOMEM;
goto out;
}
@@ -502,28 +472,29 @@ static int __devinit iguanair_probe(struct usb_interface *intf,
ir->rc = rc;
ir->dev = &intf->dev;
ir->udev = udev;
- ir->pipe_in = usb_rcvintpipe(udev,
- idesc->endpoint[0].desc.bEndpointAddress);
ir->pipe_out = usb_sndintpipe(udev,
idesc->endpoint[1].desc.bEndpointAddress);
mutex_init(&ir->lock);
init_completion(&ir->completion);
- ret = iguanair_get_features(ir);
+ pipein = usb_rcvintpipe(udev, idesc->endpoint[0].desc.bEndpointAddress);
+ usb_fill_int_urb(ir->urb_in, udev, pipein, ir->buf_in, MAX_PACKET_SIZE,
+ iguanair_rx, ir, 1);
+ ir->urb_in->transfer_dma = ir->dma_in;
+ ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ ret = usb_submit_urb(ir->urb_in, GFP_KERNEL);
if (ret) {
- dev_warn(&intf->dev, "failed to get device features");
+ dev_warn(&intf->dev, "failed to submit urb: %d\n", ret);
goto out;
}
- usb_fill_int_urb(ir->urb_in, ir->udev, ir->pipe_in, ir->buf_in,
- MAX_PACKET_SIZE, iguanair_rx, ir,
- idesc->endpoint[0].desc.bInterval);
- ir->urb_in->transfer_dma = ir->dma_in;
- ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ ret = iguanair_get_features(ir);
+ if (ret)
+ goto out2;
snprintf(ir->name, sizeof(ir->name),
- "IguanaWorks USB IR Transceiver version %d.%d",
- ir->version[0], ir->version[1]);
+ "IguanaWorks USB IR Transceiver version 0x%04x", ir->version);
usb_make_path(ir->udev, ir->phys, sizeof(ir->phys));
@@ -540,21 +511,23 @@ static int __devinit iguanair_probe(struct usb_interface *intf,
rc->s_tx_carrier = iguanair_set_tx_carrier;
rc->tx_ir = iguanair_tx;
rc->driver_name = DRIVER_NAME;
- rc->map_name = RC_MAP_EMPTY;
+ rc->map_name = RC_MAP_RC6_MCE;
+ rc->timeout = MS_TO_NS(100);
+ rc->rx_resolution = RX_RESOLUTION;
iguanair_set_tx_carrier(rc, 38000);
ret = rc_register_device(rc);
if (ret < 0) {
dev_err(&intf->dev, "failed to register rc device %d", ret);
- goto out;
+ goto out2;
}
usb_set_intfdata(intf, ir);
- dev_info(&intf->dev, "Registered %s", ir->name);
-
return 0;
+out2:
+ usb_kill_urb(ir->urb_in);
out:
if (ir) {
usb_free_urb(ir->urb_in);
@@ -570,12 +543,11 @@ static void __devexit iguanair_disconnect(struct usb_interface *intf)
{
struct iguanair *ir = usb_get_intfdata(intf);
+ rc_unregister_device(ir->rc);
usb_set_intfdata(intf, NULL);
-
usb_kill_urb(ir->urb_in);
usb_free_urb(ir->urb_in);
usb_free_coherent(ir->udev, MAX_PACKET_SIZE, ir->buf_in, ir->dma_in);
- rc_unregister_device(ir->rc);
kfree(ir);
}
@@ -592,6 +564,8 @@ static int iguanair_suspend(struct usb_interface *intf, pm_message_t message)
dev_warn(ir->dev, "failed to disable receiver for suspend\n");
}
+ usb_kill_urb(ir->urb_in);
+
mutex_unlock(&ir->lock);
return rc;
@@ -604,6 +578,10 @@ static int iguanair_resume(struct usb_interface *intf)
mutex_lock(&ir->lock);
+ rc = usb_submit_urb(ir->urb_in, GFP_KERNEL);
+ if (rc)
+ dev_warn(&intf->dev, "failed to submit urb: %d\n", rc);
+
if (ir->receiver_on) {
rc = iguanair_receiver(ir, true);
if (rc)
@@ -627,7 +605,8 @@ static struct usb_driver iguanair_driver = {
.suspend = iguanair_suspend,
.resume = iguanair_resume,
.reset_resume = iguanair_resume,
- .id_table = iguanair_table
+ .id_table = iguanair_table,
+ .soft_unbind = 1 /* we want to disable receiver on unbind */
};
module_usb_driver(iguanair_driver);
diff --git a/drivers/media/rc/ir-lirc-codec.c b/drivers/media/rc/ir-lirc-codec.c
index 5faba2a2fdd3..569124b03de3 100644
--- a/drivers/media/rc/ir-lirc-codec.c
+++ b/drivers/media/rc/ir-lirc-codec.c
@@ -105,8 +105,14 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const char __user *buf,
struct lirc_codec *lirc;
struct rc_dev *dev;
unsigned int *txbuf; /* buffer with values to transmit */
- ssize_t ret = 0;
+ ssize_t ret = -EINVAL;
size_t count;
+ ktime_t start;
+ s64 towait;
+ unsigned int duration = 0; /* signal duration in us */
+ int i;
+
+ start = ktime_get();
lirc = lirc_get_pdata(file);
if (!lirc)
@@ -129,11 +135,30 @@ static ssize_t ir_lirc_transmit_ir(struct file *file, const char __user *buf,
goto out;
}
- if (dev->tx_ir)
- ret = dev->tx_ir(dev, txbuf, count);
+ if (!dev->tx_ir) {
+ ret = -ENOSYS;
+ goto out;
+ }
+
+ ret = dev->tx_ir(dev, txbuf, count);
+ if (ret < 0)
+ goto out;
+
+ for (i = 0; i < ret; i++)
+ duration += txbuf[i];
- if (ret > 0)
- ret *= sizeof(unsigned);
+ ret *= sizeof(unsigned int);
+
+ /*
+ * The lircd gap calculation expects the write function to
+ * wait for the actual IR signal to be transmitted before
+ * returning.
+ */
+ towait = ktime_us_delta(ktime_add_us(start, duration), ktime_get());
+ if (towait > 0) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(usecs_to_jiffies(towait));
+ }
out:
kfree(txbuf);
diff --git a/drivers/media/rc/ir-nec-decoder.c b/drivers/media/rc/ir-nec-decoder.c
index 3c9431a9f62d..2ca509e6e16b 100644
--- a/drivers/media/rc/ir-nec-decoder.c
+++ b/drivers/media/rc/ir-nec-decoder.c
@@ -70,7 +70,7 @@ static int ir_nec_decode(struct rc_dev *dev, struct ir_raw_event ev)
if (!ev.pulse)
break;
- if (eq_margin(ev.duration, NEC_HEADER_PULSE, NEC_UNIT / 2)) {
+ if (eq_margin(ev.duration, NEC_HEADER_PULSE, NEC_UNIT * 2)) {
data->is_nec_x = false;
data->necx_repeat = false;
} else if (eq_margin(ev.duration, NECX_HEADER_PULSE, NEC_UNIT / 2))
@@ -86,7 +86,7 @@ static int ir_nec_decode(struct rc_dev *dev, struct ir_raw_event ev)
if (ev.pulse)
break;
- if (eq_margin(ev.duration, NEC_HEADER_SPACE, NEC_UNIT / 2)) {
+ if (eq_margin(ev.duration, NEC_HEADER_SPACE, NEC_UNIT)) {
data->state = STATE_BIT_PULSE;
return 0;
} else if (eq_margin(ev.duration, NEC_REPEAT_SPACE, NEC_UNIT / 2)) {
diff --git a/drivers/media/rc/ir-raw.c b/drivers/media/rc/ir-raw.c
index a82025121345..97dc8d13b06b 100644
--- a/drivers/media/rc/ir-raw.c
+++ b/drivers/media/rc/ir-raw.c
@@ -157,7 +157,9 @@ EXPORT_SYMBOL_GPL(ir_raw_event_store_edge);
* This routine (which may be called from an interrupt context) works
* in similar manner to ir_raw_event_store_edge.
* This routine is intended for devices with limited internal buffer
- * It automerges samples of same type, and handles timeouts
+ * It automerges samples of same type, and handles timeouts. Returns non-zero
+ * if the event was added, and zero if the event was ignored due to idle
+ * processing.
*/
int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
{
@@ -184,7 +186,7 @@ int ir_raw_event_store_with_filter(struct rc_dev *dev, struct ir_raw_event *ev)
dev->raw->this_ev.duration >= dev->timeout)
ir_raw_event_set_idle(dev, true);
- return 0;
+ return 1;
}
EXPORT_SYMBOL_GPL(ir_raw_event_store_with_filter);
diff --git a/drivers/media/rc/ir-rx51.c b/drivers/media/rc/ir-rx51.c
new file mode 100644
index 000000000000..546199e9ccc7
--- /dev/null
+++ b/drivers/media/rc/ir-rx51.c
@@ -0,0 +1,498 @@
+/*
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Based on lirc_serial.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#include <plat/dmtimer.h>
+#include <plat/clock.h>
+#include <plat/omap-pm.h>
+
+#include <media/lirc.h>
+#include <media/lirc_dev.h>
+#include <media/ir-rx51.h>
+
+#define LIRC_RX51_DRIVER_FEATURES (LIRC_CAN_SET_SEND_DUTY_CYCLE | \
+ LIRC_CAN_SET_SEND_CARRIER | \
+ LIRC_CAN_SEND_PULSE)
+
+#define DRIVER_NAME "lirc_rx51"
+
+#define WBUF_LEN 256
+
+#define TIMER_MAX_VALUE 0xffffffff
+
+struct lirc_rx51 {
+ struct omap_dm_timer *pwm_timer;
+ struct omap_dm_timer *pulse_timer;
+ struct device *dev;
+ struct lirc_rx51_platform_data *pdata;
+ wait_queue_head_t wqueue;
+
+ unsigned long fclk_khz;
+ unsigned int freq; /* carrier frequency */
+ unsigned int duty_cycle; /* carrier duty cycle */
+ unsigned int irq_num;
+ unsigned int match;
+ int wbuf[WBUF_LEN];
+ int wbuf_index;
+ unsigned long device_is_open;
+ int pwm_timer_num;
+};
+
+static void lirc_rx51_on(struct lirc_rx51 *lirc_rx51)
+{
+ omap_dm_timer_set_pwm(lirc_rx51->pwm_timer, 0, 1,
+ OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE);
+}
+
+static void lirc_rx51_off(struct lirc_rx51 *lirc_rx51)
+{
+ omap_dm_timer_set_pwm(lirc_rx51->pwm_timer, 0, 1,
+ OMAP_TIMER_TRIGGER_NONE);
+}
+
+static int init_timing_params(struct lirc_rx51 *lirc_rx51)
+{
+ u32 load, match;
+
+ load = -(lirc_rx51->fclk_khz * 1000 / lirc_rx51->freq);
+ match = -(lirc_rx51->duty_cycle * -load / 100);
+ omap_dm_timer_set_load(lirc_rx51->pwm_timer, 1, load);
+ omap_dm_timer_set_match(lirc_rx51->pwm_timer, 1, match);
+ omap_dm_timer_write_counter(lirc_rx51->pwm_timer, TIMER_MAX_VALUE - 2);
+ omap_dm_timer_start(lirc_rx51->pwm_timer);
+ omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);
+ omap_dm_timer_start(lirc_rx51->pulse_timer);
+
+ lirc_rx51->match = 0;
+
+ return 0;
+}
+
+#define tics_after(a, b) ((long)(b) - (long)(a) < 0)
+
+static int pulse_timer_set_timeout(struct lirc_rx51 *lirc_rx51, int usec)
+{
+ int counter;
+
+ BUG_ON(usec < 0);
+
+ if (lirc_rx51->match == 0)
+ counter = omap_dm_timer_read_counter(lirc_rx51->pulse_timer);
+ else
+ counter = lirc_rx51->match;
+
+ counter += (u32)(lirc_rx51->fclk_khz * usec / (1000));
+ omap_dm_timer_set_match(lirc_rx51->pulse_timer, 1, counter);
+ omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer,
+ OMAP_TIMER_INT_MATCH);
+ if (tics_after(omap_dm_timer_read_counter(lirc_rx51->pulse_timer),
+ counter)) {
+ return 1;
+ }
+ return 0;
+}
+
+static irqreturn_t lirc_rx51_interrupt_handler(int irq, void *ptr)
+{
+ unsigned int retval;
+ struct lirc_rx51 *lirc_rx51 = ptr;
+
+ retval = omap_dm_timer_read_status(lirc_rx51->pulse_timer);
+ if (!retval)
+ return IRQ_NONE;
+
+ if (retval & ~OMAP_TIMER_INT_MATCH)
+ dev_err_ratelimited(lirc_rx51->dev,
+ ": Unexpected interrupt source: %x\n", retval);
+
+ omap_dm_timer_write_status(lirc_rx51->pulse_timer,
+ OMAP_TIMER_INT_MATCH |
+ OMAP_TIMER_INT_OVERFLOW |
+ OMAP_TIMER_INT_CAPTURE);
+ if (lirc_rx51->wbuf_index < 0) {
+ dev_err_ratelimited(lirc_rx51->dev,
+ ": BUG wbuf_index has value of %i\n",
+ lirc_rx51->wbuf_index);
+ goto end;
+ }
+
+ /*
+ * If we happen to hit an odd latency spike, loop through the
+ * pulses until we catch up.
+ */
+ do {
+ if (lirc_rx51->wbuf_index >= WBUF_LEN)
+ goto end;
+ if (lirc_rx51->wbuf[lirc_rx51->wbuf_index] == -1)
+ goto end;
+
+ if (lirc_rx51->wbuf_index % 2)
+ lirc_rx51_off(lirc_rx51);
+ else
+ lirc_rx51_on(lirc_rx51);
+
+ retval = pulse_timer_set_timeout(lirc_rx51,
+ lirc_rx51->wbuf[lirc_rx51->wbuf_index]);
+ lirc_rx51->wbuf_index++;
+
+ } while (retval);
+
+ return IRQ_HANDLED;
+end:
+ /* Stop TX here */
+ lirc_rx51_off(lirc_rx51);
+ lirc_rx51->wbuf_index = -1;
+ omap_dm_timer_stop(lirc_rx51->pwm_timer);
+ omap_dm_timer_stop(lirc_rx51->pulse_timer);
+ omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);
+ wake_up_interruptible(&lirc_rx51->wqueue);
+
+ return IRQ_HANDLED;
+}
+
+static int lirc_rx51_init_port(struct lirc_rx51 *lirc_rx51)
+{
+ struct clk *clk_fclk;
+ int retval, pwm_timer = lirc_rx51->pwm_timer_num;
+
+ lirc_rx51->pwm_timer = omap_dm_timer_request_specific(pwm_timer);
+ if (lirc_rx51->pwm_timer == NULL) {
+ dev_err(lirc_rx51->dev, ": Error requesting GPT%d timer\n",
+ pwm_timer);
+ return -EBUSY;
+ }
+
+ lirc_rx51->pulse_timer = omap_dm_timer_request();
+ if (lirc_rx51->pulse_timer == NULL) {
+ dev_err(lirc_rx51->dev, ": Error requesting pulse timer\n");
+ retval = -EBUSY;
+ goto err1;
+ }
+
+ omap_dm_timer_set_source(lirc_rx51->pwm_timer, OMAP_TIMER_SRC_SYS_CLK);
+ omap_dm_timer_set_source(lirc_rx51->pulse_timer,
+ OMAP_TIMER_SRC_SYS_CLK);
+
+ omap_dm_timer_enable(lirc_rx51->pwm_timer);
+ omap_dm_timer_enable(lirc_rx51->pulse_timer);
+
+ lirc_rx51->irq_num = omap_dm_timer_get_irq(lirc_rx51->pulse_timer);
+ retval = request_irq(lirc_rx51->irq_num, lirc_rx51_interrupt_handler,
+ IRQF_DISABLED | IRQF_SHARED,
+ "lirc_pulse_timer", lirc_rx51);
+ if (retval) {
+ dev_err(lirc_rx51->dev, ": Failed to request interrupt line\n");
+ goto err2;
+ }
+
+ clk_fclk = omap_dm_timer_get_fclk(lirc_rx51->pwm_timer);
+ lirc_rx51->fclk_khz = clk_fclk->rate / 1000;
+
+ return 0;
+
+err2:
+ omap_dm_timer_free(lirc_rx51->pulse_timer);
+err1:
+ omap_dm_timer_free(lirc_rx51->pwm_timer);
+
+ return retval;
+}
+
+static int lirc_rx51_free_port(struct lirc_rx51 *lirc_rx51)
+{
+ omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);
+ free_irq(lirc_rx51->irq_num, lirc_rx51);
+ lirc_rx51_off(lirc_rx51);
+ omap_dm_timer_disable(lirc_rx51->pwm_timer);
+ omap_dm_timer_disable(lirc_rx51->pulse_timer);
+ omap_dm_timer_free(lirc_rx51->pwm_timer);
+ omap_dm_timer_free(lirc_rx51->pulse_timer);
+ lirc_rx51->wbuf_index = -1;
+
+ return 0;
+}
+
+static ssize_t lirc_rx51_write(struct file *file, const char *buf,
+ size_t n, loff_t *ppos)
+{
+ int count, i;
+ struct lirc_rx51 *lirc_rx51 = file->private_data;
+
+ if (n % sizeof(int))
+ return -EINVAL;
+
+ count = n / sizeof(int);
+ if ((count > WBUF_LEN) || (count % 2 == 0))
+ return -EINVAL;
+
+ /* Wait any pending transfers to finish */
+ wait_event_interruptible(lirc_rx51->wqueue, lirc_rx51->wbuf_index < 0);
+
+ if (copy_from_user(lirc_rx51->wbuf, buf, n))
+ return -EFAULT;
+
+ /* Sanity check the input pulses */
+ for (i = 0; i < count; i++)
+ if (lirc_rx51->wbuf[i] < 0)
+ return -EINVAL;
+
+ init_timing_params(lirc_rx51);
+ if (count < WBUF_LEN)
+ lirc_rx51->wbuf[count] = -1; /* Insert termination mark */
+
+ /*
+ * Adjust latency requirements so the device doesn't go in too
+ * deep sleep states
+ */
+ lirc_rx51->pdata->set_max_mpu_wakeup_lat(lirc_rx51->dev, 50);
+
+ lirc_rx51_on(lirc_rx51);
+ lirc_rx51->wbuf_index = 1;
+ pulse_timer_set_timeout(lirc_rx51, lirc_rx51->wbuf[0]);
+
+ /*
+ * Don't return back to the userspace until the transfer has
+ * finished
+ */
+ wait_event_interruptible(lirc_rx51->wqueue, lirc_rx51->wbuf_index < 0);
+
+ /* We can sleep again */
+ lirc_rx51->pdata->set_max_mpu_wakeup_lat(lirc_rx51->dev, -1);
+
+ return n;
+}
+
+static long lirc_rx51_ioctl(struct file *filep,
+ unsigned int cmd, unsigned long arg)
+{
+ int result;
+ unsigned long value;
+ unsigned int ivalue;
+ struct lirc_rx51 *lirc_rx51 = filep->private_data;
+
+ switch (cmd) {
+ case LIRC_GET_SEND_MODE:
+ result = put_user(LIRC_MODE_PULSE, (unsigned long *)arg);
+ if (result)
+ return result;
+ break;
+
+ case LIRC_SET_SEND_MODE:
+ result = get_user(value, (unsigned long *)arg);
+ if (result)
+ return result;
+
+ /* only LIRC_MODE_PULSE supported */
+ if (value != LIRC_MODE_PULSE)
+ return -ENOSYS;
+ break;
+
+ case LIRC_GET_REC_MODE:
+ result = put_user(0, (unsigned long *) arg);
+ if (result)
+ return result;
+ break;
+
+ case LIRC_GET_LENGTH:
+ return -ENOSYS;
+ break;
+
+ case LIRC_SET_SEND_DUTY_CYCLE:
+ result = get_user(ivalue, (unsigned int *) arg);
+ if (result)
+ return result;
+
+ if (ivalue <= 0 || ivalue > 100) {
+ dev_err(lirc_rx51->dev, ": invalid duty cycle %d\n",
+ ivalue);
+ return -EINVAL;
+ }
+
+ lirc_rx51->duty_cycle = ivalue;
+ break;
+
+ case LIRC_SET_SEND_CARRIER:
+ result = get_user(ivalue, (unsigned int *) arg);
+ if (result)
+ return result;
+
+ if (ivalue > 500000 || ivalue < 20000) {
+ dev_err(lirc_rx51->dev, ": invalid carrier freq %d\n",
+ ivalue);
+ return -EINVAL;
+ }
+
+ lirc_rx51->freq = ivalue;
+ break;
+
+ case LIRC_GET_FEATURES:
+ result = put_user(LIRC_RX51_DRIVER_FEATURES,
+ (unsigned long *) arg);
+ if (result)
+ return result;
+ break;
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+
+ return 0;
+}
+
+static int lirc_rx51_open(struct inode *inode, struct file *file)
+{
+ struct lirc_rx51 *lirc_rx51 = lirc_get_pdata(file);
+ BUG_ON(!lirc_rx51);
+
+ file->private_data = lirc_rx51;
+
+ if (test_and_set_bit(1, &lirc_rx51->device_is_open))
+ return -EBUSY;
+
+ return lirc_rx51_init_port(lirc_rx51);
+}
+
+static int lirc_rx51_release(struct inode *inode, struct file *file)
+{
+ struct lirc_rx51 *lirc_rx51 = file->private_data;
+
+ lirc_rx51_free_port(lirc_rx51);
+
+ clear_bit(1, &lirc_rx51->device_is_open);
+
+ return 0;
+}
+
+static struct lirc_rx51 lirc_rx51 = {
+ .freq = 38000,
+ .duty_cycle = 50,
+ .wbuf_index = -1,
+};
+
+static const struct file_operations lirc_fops = {
+ .owner = THIS_MODULE,
+ .write = lirc_rx51_write,
+ .unlocked_ioctl = lirc_rx51_ioctl,
+ .read = lirc_dev_fop_read,
+ .poll = lirc_dev_fop_poll,
+ .open = lirc_rx51_open,
+ .release = lirc_rx51_release,
+};
+
+static struct lirc_driver lirc_rx51_driver = {
+ .name = DRIVER_NAME,
+ .minor = -1,
+ .code_length = 1,
+ .data = &lirc_rx51,
+ .fops = &lirc_fops,
+ .owner = THIS_MODULE,
+};
+
+#ifdef CONFIG_PM
+
+static int lirc_rx51_suspend(struct platform_device *dev, pm_message_t state)
+{
+ /*
+ * In case the device is still open, do not suspend. Normally
+ * this should not be a problem as lircd only keeps the device
+ * open only for short periods of time. We also don't want to
+ * get involved with race conditions that might happen if we
+ * were in a middle of a transmit. Thus, we defer any suspend
+ * actions until transmit has completed.
+ */
+ if (test_and_set_bit(1, &lirc_rx51.device_is_open))
+ return -EAGAIN;
+
+ clear_bit(1, &lirc_rx51.device_is_open);
+
+ return 0;
+}
+
+static int lirc_rx51_resume(struct platform_device *dev)
+{
+ return 0;
+}
+
+#else
+
+#define lirc_rx51_suspend NULL
+#define lirc_rx51_resume NULL
+
+#endif /* CONFIG_PM */
+
+static int __devinit lirc_rx51_probe(struct platform_device *dev)
+{
+ lirc_rx51_driver.features = LIRC_RX51_DRIVER_FEATURES;
+ lirc_rx51.pdata = dev->dev.platform_data;
+ lirc_rx51.pwm_timer_num = lirc_rx51.pdata->pwm_timer;
+ lirc_rx51.dev = &dev->dev;
+ lirc_rx51_driver.dev = &dev->dev;
+ lirc_rx51_driver.minor = lirc_register_driver(&lirc_rx51_driver);
+ init_waitqueue_head(&lirc_rx51.wqueue);
+
+ if (lirc_rx51_driver.minor < 0) {
+ dev_err(lirc_rx51.dev, ": lirc_register_driver failed: %d\n",
+ lirc_rx51_driver.minor);
+ return lirc_rx51_driver.minor;
+ }
+ dev_info(lirc_rx51.dev, "registration ok, minor: %d, pwm: %d\n",
+ lirc_rx51_driver.minor, lirc_rx51.pwm_timer_num);
+
+ return 0;
+}
+
+static int __exit lirc_rx51_remove(struct platform_device *dev)
+{
+ return lirc_unregister_driver(lirc_rx51_driver.minor);
+}
+
+struct platform_driver lirc_rx51_platform_driver = {
+ .probe = lirc_rx51_probe,
+ .remove = __exit_p(lirc_rx51_remove),
+ .suspend = lirc_rx51_suspend,
+ .resume = lirc_rx51_resume,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init lirc_rx51_init(void)
+{
+ return platform_driver_register(&lirc_rx51_platform_driver);
+}
+module_init(lirc_rx51_init);
+
+static void __exit lirc_rx51_exit(void)
+{
+ platform_driver_unregister(&lirc_rx51_platform_driver);
+}
+module_exit(lirc_rx51_exit);
+
+MODULE_DESCRIPTION("LIRC TX driver for Nokia RX51");
+MODULE_AUTHOR("Nokia Corporation");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
index 36fe5a349b95..24c77a42fc36 100644
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -1473,6 +1473,7 @@ static int ite_probe(struct pnp_dev *pdev, const struct pnp_device_id
rdev = rc_allocate_device();
if (!rdev)
goto failure;
+ itdev->rdev = rdev;
ret = -ENODEV;
@@ -1604,7 +1605,6 @@ static int ite_probe(struct pnp_dev *pdev, const struct pnp_device_id
if (ret)
goto failure3;
- itdev->rdev = rdev;
ite_pr(KERN_NOTICE, "driver has been successfully loaded\n");
return 0;
diff --git a/drivers/media/rc/keymaps/rc-tt-1500.c b/drivers/media/rc/keymaps/rc-tt-1500.c
index caeff85603e3..80217ffc91db 100644
--- a/drivers/media/rc/keymaps/rc-tt-1500.c
+++ b/drivers/media/rc/keymaps/rc-tt-1500.c
@@ -61,7 +61,7 @@ static struct rc_map_list tt_1500_map = {
.map = {
.scan = tt_1500,
.size = ARRAY_SIZE(tt_1500),
- .rc_type = RC_TYPE_UNKNOWN, /* Legacy IR type */
+ .rc_type = RC_TYPE_RC5,
.name = RC_MAP_TT_1500,
}
};
diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index f38d9a8c6880..850547fe711c 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -627,7 +627,7 @@ static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
break;
case MCE_RSP_EQIRCFS:
period = DIV_ROUND_CLOSEST(
- (1 << data1 * 2) * (data2 + 1), 10);
+ (1U << data1 * 2) * (data2 + 1), 10);
if (!period)
break;
carrier = (1000 * 1000) / period;
@@ -791,10 +791,6 @@ static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
int i, ret = 0;
int cmdcount = 0;
unsigned char *cmdbuf; /* MCE command buffer */
- long signal_duration = 0; /* Singnal length in us */
- struct timeval start_time, end_time;
-
- do_gettimeofday(&start_time);
cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL);
if (!cmdbuf)
@@ -807,7 +803,6 @@ static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
/* Generate mce packet data */
for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
- signal_duration += txbuf[i];
txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
@@ -850,19 +845,6 @@ static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
/* Transmit the command to the mce device */
mce_async_out(ir, cmdbuf, cmdcount);
- /*
- * The lircd gap calculation expects the write function to
- * wait the time it takes for the ircommand to be sent before
- * it returns.
- */
- do_gettimeofday(&end_time);
- signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
- (end_time.tv_sec - start_time.tv_sec) * 1000000;
-
- /* delay with the closest number of ticks */
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(usecs_to_jiffies(signal_duration));
-
out:
kfree(cmdbuf);
return ret ? ret : count;
@@ -974,6 +956,7 @@ static void mceusb_handle_command(struct mceusb_dev *ir, int index)
static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
{
DEFINE_IR_RAW_EVENT(rawir);
+ bool event = false;
int i = 0;
/* skip meaningless 0xb1 0x60 header bytes on orig receiver */
@@ -1004,7 +987,8 @@ static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
rawir.pulse ? "pulse" : "space",
rawir.duration);
- ir_raw_event_store_with_filter(ir->rc, &rawir);
+ if (ir_raw_event_store_with_filter(ir->rc, &rawir))
+ event = true;
break;
case CMD_DATA:
ir->rem--;
@@ -1032,8 +1016,10 @@ static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
if (ir->parser_state != CMD_HEADER && !ir->rem)
ir->parser_state = CMD_HEADER;
}
- mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
- ir_raw_event_handle(ir->rc);
+ if (event) {
+ mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
+ ir_raw_event_handle(ir->rc);
+ }
}
static void mceusb_dev_recv(struct urb *urb)
diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c
index fae1615e0ff2..f9be68132c67 100644
--- a/drivers/media/rc/rc-loopback.c
+++ b/drivers/media/rc/rc-loopback.c
@@ -105,18 +105,9 @@ static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
{
struct loopback_dev *lodev = dev->priv;
u32 rxmask;
- unsigned total_duration = 0;
unsigned i;
DEFINE_IR_RAW_EVENT(rawir);
- for (i = 0; i < count; i++)
- total_duration += abs(txbuf[i]);
-
- if (total_duration == 0) {
- dprintk("invalid tx data, total duration zero\n");
- return -EINVAL;
- }
-
if (lodev->txcarrier < lodev->rxcarriermin ||
lodev->txcarrier > lodev->rxcarriermax) {
dprintk("ignoring tx, carrier out of range\n");
@@ -148,9 +139,6 @@ static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
ir_raw_event_handle(dev);
out:
- /* Lirc expects this function to take as long as the total duration */
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(usecs_to_jiffies(total_duration));
return count;
}
diff --git a/drivers/media/rc/redrat3.c b/drivers/media/rc/redrat3.c
index 2878b0ed9741..49731b1a9c57 100644
--- a/drivers/media/rc/redrat3.c
+++ b/drivers/media/rc/redrat3.c
@@ -1217,9 +1217,10 @@ static int __devinit redrat3_dev_probe(struct usb_interface *intf,
rr3->carrier = 38000;
rr3->rc = redrat3_init_rc_dev(rr3);
- if (!rr3->rc)
+ if (!rr3->rc) {
+ retval = -ENOMEM;
goto error;
-
+ }
setup_timer(&rr3->rx_timeout, redrat3_rx_timeout, (unsigned long)rr3);
/* we can register the device now, as it is ready */
diff --git a/drivers/media/rc/ttusbir.c b/drivers/media/rc/ttusbir.c
new file mode 100644
index 000000000000..fef05235234a
--- /dev/null
+++ b/drivers/media/rc/ttusbir.c
@@ -0,0 +1,447 @@
+/*
+ * TechnoTrend USB IR Receiver
+ *
+ * Copyright (C) 2012 Sean Young <sean@mess.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
+#include <media/rc-core.h>
+
+#define DRIVER_NAME "ttusbir"
+#define DRIVER_DESC "TechnoTrend USB IR Receiver"
+/*
+ * The Windows driver uses 8 URBS, the original lirc drivers has a
+ * configurable amount (2 default, 4 max). This device generates about 125
+ * messages per second (!), whether IR is idle or not.
+ */
+#define NUM_URBS 4
+#define NS_PER_BYTE 62500
+#define NS_PER_BIT (NS_PER_BYTE/8)
+
+struct ttusbir {
+ struct rc_dev *rc;
+ struct device *dev;
+ struct usb_device *udev;
+
+ struct urb *urb[NUM_URBS];
+
+ struct led_classdev led;
+ struct urb *bulk_urb;
+ uint8_t bulk_buffer[5];
+ int bulk_out_endp, iso_in_endp;
+ bool led_on, is_led_on;
+ atomic_t led_complete;
+
+ char phys[64];
+};
+
+static enum led_brightness ttusbir_brightness_get(struct led_classdev *led_dev)
+{
+ struct ttusbir *tt = container_of(led_dev, struct ttusbir, led);
+
+ return tt->led_on ? LED_FULL : LED_OFF;
+}
+
+static void ttusbir_set_led(struct ttusbir *tt)
+{
+ int ret;
+
+ smp_mb();
+
+ if (tt->led_on != tt->is_led_on && tt->udev &&
+ atomic_add_unless(&tt->led_complete, 1, 1)) {
+ tt->bulk_buffer[4] = tt->is_led_on = tt->led_on;
+ ret = usb_submit_urb(tt->bulk_urb, GFP_ATOMIC);
+ if (ret) {
+ dev_warn(tt->dev, "failed to submit bulk urb: %d\n",
+ ret);
+ atomic_dec(&tt->led_complete);
+ }
+ }
+}
+
+static void ttusbir_brightness_set(struct led_classdev *led_dev, enum
+ led_brightness brightness)
+{
+ struct ttusbir *tt = container_of(led_dev, struct ttusbir, led);
+
+ tt->led_on = brightness != LED_OFF;
+
+ ttusbir_set_led(tt);
+}
+
+/*
+ * The urb cannot be reused until the urb completes
+ */
+static void ttusbir_bulk_complete(struct urb *urb)
+{
+ struct ttusbir *tt = urb->context;
+
+ atomic_dec(&tt->led_complete);
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ usb_unlink_urb(urb);
+ return;
+ case -EPIPE:
+ default:
+ dev_dbg(tt->dev, "Error: urb status = %d\n", urb->status);
+ break;
+ }
+
+ ttusbir_set_led(tt);
+}
+
+/*
+ * The data is one bit per sample, a set bit signifying silence and samples
+ * being MSB first. Bit 0 can contain garbage so take it to be whatever
+ * bit 1 is, so we don't have unexpected edges.
+ */
+static void ttusbir_process_ir_data(struct ttusbir *tt, uint8_t *buf)
+{
+ struct ir_raw_event rawir;
+ unsigned i, v, b;
+ bool event = false;
+
+ init_ir_raw_event(&rawir);
+
+ for (i = 0; i < 128; i++) {
+ v = buf[i] & 0xfe;
+ switch (v) {
+ case 0xfe:
+ rawir.pulse = false;
+ rawir.duration = NS_PER_BYTE;
+ if (ir_raw_event_store_with_filter(tt->rc, &rawir))
+ event = true;
+ break;
+ case 0:
+ rawir.pulse = true;
+ rawir.duration = NS_PER_BYTE;
+ if (ir_raw_event_store_with_filter(tt->rc, &rawir))
+ event = true;
+ break;
+ default:
+ /* one edge per byte */
+ if (v & 2) {
+ b = ffz(v | 1);
+ rawir.pulse = true;
+ } else {
+ b = ffs(v) - 1;
+ rawir.pulse = false;
+ }
+
+ rawir.duration = NS_PER_BIT * (8 - b);
+ if (ir_raw_event_store_with_filter(tt->rc, &rawir))
+ event = true;
+
+ rawir.pulse = !rawir.pulse;
+ rawir.duration = NS_PER_BIT * b;
+ if (ir_raw_event_store_with_filter(tt->rc, &rawir))
+ event = true;
+ break;
+ }
+ }
+
+ /* don't wakeup when there's nothing to do */
+ if (event)
+ ir_raw_event_handle(tt->rc);
+}
+
+static void ttusbir_urb_complete(struct urb *urb)
+{
+ struct ttusbir *tt = urb->context;
+ int rc;
+
+ switch (urb->status) {
+ case 0:
+ ttusbir_process_ir_data(tt, urb->transfer_buffer);
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ usb_unlink_urb(urb);
+ return;
+ case -EPIPE:
+ default:
+ dev_dbg(tt->dev, "Error: urb status = %d\n", urb->status);
+ break;
+ }
+
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+ if (rc && rc != -ENODEV)
+ dev_warn(tt->dev, "failed to resubmit urb: %d\n", rc);
+}
+
+static int __devinit ttusbir_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct ttusbir *tt;
+ struct usb_interface_descriptor *idesc;
+ struct usb_endpoint_descriptor *desc;
+ struct rc_dev *rc;
+ int i, j, ret;
+ int altsetting = -1;
+
+ tt = kzalloc(sizeof(*tt), GFP_KERNEL);
+ rc = rc_allocate_device();
+ if (!tt || !rc) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* find the correct alt setting */
+ for (i = 0; i < intf->num_altsetting && altsetting == -1; i++) {
+ int bulk_out_endp = -1, iso_in_endp = -1;
+
+ idesc = &intf->altsetting[i].desc;
+
+ for (j = 0; j < idesc->bNumEndpoints; j++) {
+ desc = &intf->altsetting[i].endpoint[j].desc;
+ if (usb_endpoint_dir_in(desc) &&
+ usb_endpoint_xfer_isoc(desc) &&
+ desc->wMaxPacketSize == 0x10)
+ iso_in_endp = j;
+ else if (usb_endpoint_dir_out(desc) &&
+ usb_endpoint_xfer_bulk(desc) &&
+ desc->wMaxPacketSize == 0x20)
+ bulk_out_endp = j;
+
+ if (bulk_out_endp != -1 && iso_in_endp != -1) {
+ tt->bulk_out_endp = bulk_out_endp;
+ tt->iso_in_endp = iso_in_endp;
+ altsetting = i;
+ break;
+ }
+ }
+ }
+
+ if (altsetting == -1) {
+ dev_err(&intf->dev, "cannot find expected altsetting\n");
+ ret = -ENODEV;
+ goto out;
+ }
+
+ tt->dev = &intf->dev;
+ tt->udev = interface_to_usbdev(intf);
+ tt->rc = rc;
+
+ ret = usb_set_interface(tt->udev, 0, altsetting);
+ if (ret)
+ goto out;
+
+ for (i = 0; i < NUM_URBS; i++) {
+ struct urb *urb = usb_alloc_urb(8, GFP_KERNEL);
+ void *buffer;
+
+ if (!urb) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ urb->dev = tt->udev;
+ urb->context = tt;
+ urb->pipe = usb_rcvisocpipe(tt->udev, tt->iso_in_endp);
+ urb->interval = 1;
+ buffer = usb_alloc_coherent(tt->udev, 128, GFP_KERNEL,
+ &urb->transfer_dma);
+ if (!buffer) {
+ usb_free_urb(urb);
+ ret = -ENOMEM;
+ goto out;
+ }
+ urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP | URB_ISO_ASAP;
+ urb->transfer_buffer = buffer;
+ urb->complete = ttusbir_urb_complete;
+ urb->number_of_packets = 8;
+ urb->transfer_buffer_length = 128;
+
+ for (j = 0; j < 8; j++) {
+ urb->iso_frame_desc[j].offset = j * 16;
+ urb->iso_frame_desc[j].length = 16;
+ }
+
+ tt->urb[i] = urb;
+ }
+
+ tt->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!tt->bulk_urb) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ tt->bulk_buffer[0] = 0xaa;
+ tt->bulk_buffer[1] = 0x01;
+ tt->bulk_buffer[2] = 0x05;
+ tt->bulk_buffer[3] = 0x01;
+
+ usb_fill_bulk_urb(tt->bulk_urb, tt->udev, usb_sndbulkpipe(tt->udev,
+ tt->bulk_out_endp), tt->bulk_buffer, sizeof(tt->bulk_buffer),
+ ttusbir_bulk_complete, tt);
+
+ tt->led.name = "ttusbir:green:power";
+ tt->led.brightness_set = ttusbir_brightness_set;
+ tt->led.brightness_get = ttusbir_brightness_get;
+ tt->is_led_on = tt->led_on = true;
+ atomic_set(&tt->led_complete, 0);
+ ret = led_classdev_register(&intf->dev, &tt->led);
+ if (ret)
+ goto out;
+
+ usb_make_path(tt->udev, tt->phys, sizeof(tt->phys));
+
+ rc->input_name = DRIVER_DESC;
+ rc->input_phys = tt->phys;
+ usb_to_input_id(tt->udev, &rc->input_id);
+ rc->dev.parent = &intf->dev;
+ rc->driver_type = RC_DRIVER_IR_RAW;
+ rc->allowed_protos = RC_TYPE_ALL;
+ rc->priv = tt;
+ rc->driver_name = DRIVER_NAME;
+ rc->map_name = RC_MAP_TT_1500;
+ rc->timeout = MS_TO_NS(100);
+ /*
+ * The precision is NS_PER_BIT, but since every 8th bit can be
+ * overwritten with garbage the accuracy is at best 2 * NS_PER_BIT.
+ */
+ rc->rx_resolution = NS_PER_BIT;
+
+ ret = rc_register_device(rc);
+ if (ret) {
+ dev_err(&intf->dev, "failed to register rc device %d\n", ret);
+ goto out2;
+ }
+
+ usb_set_intfdata(intf, tt);
+
+ for (i = 0; i < NUM_URBS; i++) {
+ ret = usb_submit_urb(tt->urb[i], GFP_KERNEL);
+ if (ret) {
+ dev_err(tt->dev, "failed to submit urb %d\n", ret);
+ goto out3;
+ }
+ }
+
+ return 0;
+out3:
+ rc_unregister_device(rc);
+out2:
+ led_classdev_unregister(&tt->led);
+out:
+ if (tt) {
+ for (i = 0; i < NUM_URBS && tt->urb[i]; i++) {
+ struct urb *urb = tt->urb[i];
+
+ usb_kill_urb(urb);
+ usb_free_coherent(tt->udev, 128, urb->transfer_buffer,
+ urb->transfer_dma);
+ usb_free_urb(urb);
+ }
+ usb_kill_urb(tt->bulk_urb);
+ usb_free_urb(tt->bulk_urb);
+ kfree(tt);
+ }
+ rc_free_device(rc);
+
+ return ret;
+}
+
+static void __devexit ttusbir_disconnect(struct usb_interface *intf)
+{
+ struct ttusbir *tt = usb_get_intfdata(intf);
+ struct usb_device *udev = tt->udev;
+ int i;
+
+ tt->udev = NULL;
+
+ rc_unregister_device(tt->rc);
+ led_classdev_unregister(&tt->led);
+ for (i = 0; i < NUM_URBS; i++) {
+ usb_kill_urb(tt->urb[i]);
+ usb_free_coherent(udev, 128, tt->urb[i]->transfer_buffer,
+ tt->urb[i]->transfer_dma);
+ usb_free_urb(tt->urb[i]);
+ }
+ usb_kill_urb(tt->bulk_urb);
+ usb_free_urb(tt->bulk_urb);
+ usb_set_intfdata(intf, NULL);
+ kfree(tt);
+}
+
+static int ttusbir_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct ttusbir *tt = usb_get_intfdata(intf);
+ int i;
+
+ for (i = 0; i < NUM_URBS; i++)
+ usb_kill_urb(tt->urb[i]);
+
+ led_classdev_suspend(&tt->led);
+ usb_kill_urb(tt->bulk_urb);
+
+ return 0;
+}
+
+static int ttusbir_resume(struct usb_interface *intf)
+{
+ struct ttusbir *tt = usb_get_intfdata(intf);
+ int i, rc;
+
+ led_classdev_resume(&tt->led);
+ tt->is_led_on = true;
+ ttusbir_set_led(tt);
+
+ for (i = 0; i < NUM_URBS; i++) {
+ rc = usb_submit_urb(tt->urb[i], GFP_KERNEL);
+ if (rc) {
+ dev_warn(tt->dev, "failed to submit urb: %d\n", rc);
+ break;
+ }
+ }
+
+ return rc;
+}
+
+static const struct usb_device_id ttusbir_table[] = {
+ { USB_DEVICE(0x0b48, 0x2003) },
+ { }
+};
+
+static struct usb_driver ttusbir_driver = {
+ .name = DRIVER_NAME,
+ .id_table = ttusbir_table,
+ .probe = ttusbir_probe,
+ .suspend = ttusbir_suspend,
+ .resume = ttusbir_resume,
+ .reset_resume = ttusbir_resume,
+ .disconnect = __devexit_p(ttusbir_disconnect)
+};
+
+module_usb_driver(ttusbir_driver);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Sean Young <sean@mess.org>");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(usb, ttusbir_table);
+
diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c
index 54ee34872d14..30ae1f24abc3 100644
--- a/drivers/media/rc/winbond-cir.c
+++ b/drivers/media/rc/winbond-cir.c
@@ -180,7 +180,6 @@ enum wbcir_rxstate {
enum wbcir_txstate {
WBCIR_TXSTATE_INACTIVE = 0,
WBCIR_TXSTATE_ACTIVE,
- WBCIR_TXSTATE_DONE,
WBCIR_TXSTATE_ERROR
};
@@ -216,7 +215,6 @@ struct wbcir_data {
u32 txlen;
u32 txoff;
u32 *txbuf;
- wait_queue_head_t txwaitq;
u8 txmask;
u32 txcarrier;
};
@@ -358,7 +356,7 @@ wbcir_irq_rx(struct wbcir_data *data, struct pnp_dev *device)
if (data->rxstate == WBCIR_RXSTATE_ERROR)
continue;
rawir.pulse = irdata & 0x80 ? false : true;
- rawir.duration = US_TO_NS((irdata & 0x7F) * 10);
+ rawir.duration = US_TO_NS(((irdata & 0x7F) + 1) * 10);
ir_raw_event_store_with_filter(data->dev, &rawir);
}
@@ -424,11 +422,11 @@ wbcir_irq_tx(struct wbcir_data *data)
if (data->txstate == WBCIR_TXSTATE_ERROR)
/* Clear TX underrun bit */
outb(WBCIR_TX_UNDERRUN, data->sbase + WBCIR_REG_SP3_ASCR);
- else
- data->txstate = WBCIR_TXSTATE_DONE;
wbcir_set_irqmask(data, WBCIR_IRQ_RX | WBCIR_IRQ_ERR);
led_trigger_event(data->txtrigger, LED_OFF);
- wake_up(&data->txwaitq);
+ kfree(data->txbuf);
+ data->txbuf = NULL;
+ data->txstate = WBCIR_TXSTATE_INACTIVE;
} else if (data->txoff == data->txlen) {
/* At the end of transmission, tell the hw before last byte */
outsb(data->sbase + WBCIR_REG_SP3_TXDATA, bytes, used - 1);
@@ -579,43 +577,37 @@ wbcir_txmask(struct rc_dev *dev, u32 mask)
}
static int
-wbcir_tx(struct rc_dev *dev, unsigned *buf, unsigned count)
+wbcir_tx(struct rc_dev *dev, unsigned *b, unsigned count)
{
struct wbcir_data *data = dev->priv;
+ unsigned *buf;
unsigned i;
unsigned long flags;
+ buf = kmalloc(count * sizeof(*b), GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ /* Convert values to multiples of 10us */
+ for (i = 0; i < count; i++)
+ buf[i] = DIV_ROUND_CLOSEST(b[i], 10);
+
/* Not sure if this is possible, but better safe than sorry */
spin_lock_irqsave(&data->spinlock, flags);
if (data->txstate != WBCIR_TXSTATE_INACTIVE) {
spin_unlock_irqrestore(&data->spinlock, flags);
+ kfree(buf);
return -EBUSY;
}
- /* Convert values to multiples of 10us */
- for (i = 0; i < count; i++)
- buf[i] = DIV_ROUND_CLOSEST(buf[i], 10);
-
/* Fill the TX fifo once, the irq handler will do the rest */
data->txbuf = buf;
data->txlen = count;
data->txoff = 0;
wbcir_irq_tx(data);
- /* Wait for the TX to complete */
- while (data->txstate == WBCIR_TXSTATE_ACTIVE) {
- spin_unlock_irqrestore(&data->spinlock, flags);
- wait_event(data->txwaitq, data->txstate != WBCIR_TXSTATE_ACTIVE);
- spin_lock_irqsave(&data->spinlock, flags);
- }
-
/* We're done */
- if (data->txstate == WBCIR_TXSTATE_ERROR)
- count = -EAGAIN;
- data->txstate = WBCIR_TXSTATE_INACTIVE;
- data->txbuf = NULL;
spin_unlock_irqrestore(&data->spinlock, flags);
-
return count;
}
@@ -927,13 +919,11 @@ wbcir_init_hw(struct wbcir_data *data)
ir_raw_event_reset(data->dev);
ir_raw_event_handle(data->dev);
- /*
- * Check TX state, if we did a suspend/resume cycle while TX was
- * active, we will have a process waiting in txwaitq.
- */
+ /* Clear TX state */
if (data->txstate == WBCIR_TXSTATE_ACTIVE) {
- data->txstate = WBCIR_TXSTATE_ERROR;
- wake_up(&data->txwaitq);
+ kfree(data->txbuf);
+ data->txbuf = NULL;
+ data->txstate = WBCIR_TXSTATE_INACTIVE;
}
/* Enable interrupts */
@@ -974,7 +964,6 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
pnp_set_drvdata(device, data);
spin_lock_init(&data->spinlock);
- init_waitqueue_head(&data->txwaitq);
data->ebase = pnp_port_start(device, 0);
data->wbase = pnp_port_start(device, 1);
data->sbase = pnp_port_start(device, 2);