diff options
author | David S. Miller <davem@davemloft.net> | 2012-10-09 13:14:32 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2012-10-09 13:14:32 -0400 |
commit | 8dd9117cc7a021ced1c5cf177e2d44dd92b88617 (patch) | |
tree | cad990f58f9ec6d400226dda86718fc10781416e /drivers/media/rc | |
parent | 16e310ae6ed352c4963b1f2413fcd88fa693eeda (diff) | |
parent | 547b1e81afe3119f7daf702cc03b158495535a25 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Pulled mainline in order to get the UAPI infrastructure already
merged before I pull in David Howells's UAPI trees for networking.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/media/rc')
-rw-r--r-- | drivers/media/rc/Kconfig | 32 | ||||
-rw-r--r-- | drivers/media/rc/Makefile | 2 | ||||
-rw-r--r-- | drivers/media/rc/ati_remote.c | 15 | ||||
-rw-r--r-- | drivers/media/rc/fintek-cir.c | 11 | ||||
-rw-r--r-- | drivers/media/rc/iguanair.c | 247 | ||||
-rw-r--r-- | drivers/media/rc/ir-lirc-codec.c | 35 | ||||
-rw-r--r-- | drivers/media/rc/ir-nec-decoder.c | 4 | ||||
-rw-r--r-- | drivers/media/rc/ir-raw.c | 6 | ||||
-rw-r--r-- | drivers/media/rc/ir-rx51.c | 498 | ||||
-rw-r--r-- | drivers/media/rc/ite-cir.c | 2 | ||||
-rw-r--r-- | drivers/media/rc/keymaps/rc-tt-1500.c | 2 | ||||
-rw-r--r-- | drivers/media/rc/mceusb.c | 30 | ||||
-rw-r--r-- | drivers/media/rc/rc-loopback.c | 12 | ||||
-rw-r--r-- | drivers/media/rc/redrat3.c | 5 | ||||
-rw-r--r-- | drivers/media/rc/ttusbir.c | 447 | ||||
-rw-r--r-- | drivers/media/rc/winbond-cir.c | 49 |
16 files changed, 1172 insertions, 225 deletions
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig index 8be57634ba6..79ba242fe26 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 f871d1986c2..56bacf07b36 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 8fa72e2dacb..49bb356ed14 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 ab30c64f812..52fd7696b1b 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 5e2eaf8ba73..1e4c68a5cec 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 5faba2a2fdd..569124b03de 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 3c9431a9f62..2ca509e6e16 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 a8202512134..97dc8d13b06 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 00000000000..546199e9ccc --- /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 36fe5a349b9..24c77a42fc3 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 caeff85603e..80217ffc91d 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 f38d9a8c688..850547fe711 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 fae1615e0ff..f9be68132c6 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 2878b0ed974..49731b1a9c5 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 00000000000..fef05235234 --- /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 54ee34872d1..30ae1f24abc 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); |