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path: root/drivers/media/rc/redrat3.c
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Diffstat (limited to 'drivers/media/rc/redrat3.c')
-rw-r--r--drivers/media/rc/redrat3.c226
1 files changed, 111 insertions, 115 deletions
diff --git a/drivers/media/rc/redrat3.c b/drivers/media/rc/redrat3.c
index 12167a6b547..79abbc8d960 100644
--- a/drivers/media/rc/redrat3.c
+++ b/drivers/media/rc/redrat3.c
@@ -47,6 +47,7 @@
#include <asm/unaligned.h>
#include <linux/device.h>
+#include <linux/leds.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
@@ -59,28 +60,6 @@
#define DRIVER_DESC "RedRat3 USB IR Transceiver Driver"
#define DRIVER_NAME "redrat3"
-/* module parameters */
-#ifdef CONFIG_USB_DEBUG
-static int debug = 1;
-#else
-static int debug;
-#endif
-
-#define RR3_DEBUG_STANDARD 0x1
-#define RR3_DEBUG_FUNCTION_TRACE 0x2
-
-#define rr3_dbg(dev, fmt, ...) \
- do { \
- if (debug & RR3_DEBUG_STANDARD) \
- dev_info(dev, fmt, ## __VA_ARGS__); \
- } while (0)
-
-#define rr3_ftr(dev, fmt, ...) \
- do { \
- if (debug & RR3_DEBUG_FUNCTION_TRACE) \
- dev_info(dev, fmt, ## __VA_ARGS__); \
- } while (0)
-
/* bulk data transfer types */
#define RR3_ERROR 0x01
#define RR3_MOD_SIGNAL_IN 0x20
@@ -117,7 +96,7 @@ static int debug;
#define RR3_IR_IO_LENGTH_FUZZ 0x04
/* Timeout for end of signal detection */
#define RR3_IR_IO_SIG_TIMEOUT 0x05
-/* Minumum value for pause recognition. */
+/* Minimum value for pause recognition. */
#define RR3_IR_IO_MIN_PAUSE 0x06
/* Clock freq. of EZ-USB chip */
@@ -186,6 +165,13 @@ struct redrat3_dev {
struct rc_dev *rc;
struct device *dev;
+ /* led control */
+ struct led_classdev led;
+ atomic_t flash;
+ struct usb_ctrlrequest flash_control;
+ struct urb *flash_urb;
+ u8 flash_in_buf;
+
/* save off the usb device pointer */
struct usb_device *udev;
@@ -206,8 +192,6 @@ struct redrat3_dev {
struct timer_list rx_timeout;
u32 hw_timeout;
- /* is the detector enabled*/
- bool det_enabled;
/* Is the device currently transmitting?*/
bool transmitting;
@@ -231,13 +215,11 @@ static void redrat3_issue_async(struct redrat3_dev *rr3)
{
int res;
- rr3_ftr(rr3->dev, "Entering %s\n", __func__);
-
res = usb_submit_urb(rr3->read_urb, GFP_ATOMIC);
if (res)
- rr3_dbg(rr3->dev, "%s: receive request FAILED! "
- "(res %d, len %d)\n", __func__, res,
- rr3->read_urb->transfer_buffer_length);
+ dev_dbg(rr3->dev,
+ "%s: receive request FAILED! (res %d, len %d)\n",
+ __func__, res, rr3->read_urb->transfer_buffer_length);
}
static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code)
@@ -353,7 +335,7 @@ static void redrat3_rx_timeout(unsigned long data)
{
struct redrat3_dev *rr3 = (struct redrat3_dev *)data;
- rr3_dbg(rr3->dev, "calling ir_raw_event_reset\n");
+ dev_dbg(rr3->dev, "calling ir_raw_event_reset\n");
ir_raw_event_reset(rr3->rc);
}
@@ -371,8 +353,6 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
return;
}
- rr3_ftr(rr3->dev, "Entered %s\n", __func__);
-
dev = rr3->dev;
/* Make sure we reset the IR kfifo after a bit of inactivity */
@@ -380,7 +360,7 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
mod_timer(&rr3->rx_timeout, jiffies + delay);
mod_freq = redrat3_val_to_mod_freq(&rr3->irdata);
- rr3_dbg(dev, "Got mod_freq of %u\n", mod_freq);
+ dev_dbg(dev, "Got mod_freq of %u\n", mod_freq);
/* process each rr3 encoded byte into an int */
sig_size = be16_to_cpu(rr3->irdata.sig_size);
@@ -402,7 +382,7 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
/* cap the value to IR_MAX_DURATION */
rawir.duration &= IR_MAX_DURATION;
- rr3_dbg(dev, "storing %s with duration %d (i: %d)\n",
+ dev_dbg(dev, "storing %s with duration %d (i: %d)\n",
rawir.pulse ? "pulse" : "space", rawir.duration, i);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
@@ -415,12 +395,12 @@ static void redrat3_process_ir_data(struct redrat3_dev *rr3)
rawir.duration = US_TO_NS(2800);
else
rawir.duration = trailer;
- rr3_dbg(dev, "storing trailing space with duration %d\n",
+ dev_dbg(dev, "storing trailing space with duration %d\n",
rawir.duration);
ir_raw_event_store_with_filter(rr3->rc, &rawir);
}
- rr3_dbg(dev, "calling ir_raw_event_handle\n");
+ dev_dbg(dev, "calling ir_raw_event_handle\n");
ir_raw_event_handle(rr3->rc);
}
@@ -458,8 +438,6 @@ static int redrat3_enable_detector(struct redrat3_dev *rr3)
struct device *dev = rr3->dev;
u8 ret;
- rr3_ftr(dev, "Entering %s\n", __func__);
-
ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3);
if (ret != 0)
dev_dbg(dev, "%s: unexpected ret of %d\n",
@@ -472,40 +450,18 @@ static int redrat3_enable_detector(struct redrat3_dev *rr3)
return -EIO;
}
- rr3->det_enabled = true;
redrat3_issue_async(rr3);
return 0;
}
-/* Disables the rr3 long range detector */
-static void redrat3_disable_detector(struct redrat3_dev *rr3)
-{
- struct device *dev = rr3->dev;
- u8 ret;
-
- rr3_ftr(dev, "Entering %s\n", __func__);
-
- ret = redrat3_send_cmd(RR3_RC_DET_DISABLE, rr3);
- if (ret != 0)
- dev_err(dev, "%s: failure!\n", __func__);
-
- ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3);
- if (ret != 0)
- dev_warn(dev, "%s: detector status: %d, should be 0\n",
- __func__, ret);
-
- rr3->det_enabled = false;
-}
-
static inline void redrat3_delete(struct redrat3_dev *rr3,
struct usb_device *udev)
{
- rr3_ftr(rr3->dev, "%s cleaning up\n", __func__);
usb_kill_urb(rr3->read_urb);
-
+ usb_kill_urb(rr3->flash_urb);
usb_free_urb(rr3->read_urb);
-
+ usb_free_urb(rr3->flash_urb);
usb_free_coherent(udev, le16_to_cpu(rr3->ep_in->wMaxPacketSize),
rr3->bulk_in_buf, rr3->dma_in);
@@ -534,7 +490,7 @@ static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
else {
timeout = redrat3_len_to_us(be32_to_cpup(tmp));
- rr3_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000);
+ dev_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000);
}
kfree(tmp);
@@ -550,8 +506,6 @@ static void redrat3_reset(struct redrat3_dev *rr3)
u8 *val;
int len = sizeof(u8);
- rr3_ftr(dev, "Entering %s\n", __func__);
-
rxpipe = usb_rcvctrlpipe(udev, 0);
txpipe = usb_sndctrlpipe(udev, 0);
@@ -565,19 +519,19 @@ static void redrat3_reset(struct redrat3_dev *rr3)
rc = usb_control_msg(udev, rxpipe, RR3_RESET,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25);
- rr3_dbg(dev, "reset returned 0x%02x\n", rc);
+ dev_dbg(dev, "reset returned 0x%02x\n", rc);
*val = 5;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25);
- rr3_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc);
+ dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc);
*val = RR3_DRIVER_MAXLENS;
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25);
- rr3_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc);
+ dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc);
kfree(val);
}
@@ -587,8 +541,6 @@ static void redrat3_get_firmware_rev(struct redrat3_dev *rr3)
int rc = 0;
char *buffer;
- rr3_ftr(rr3->dev, "Entering %s\n", __func__);
-
buffer = kzalloc(sizeof(char) * (RR3_FW_VERSION_LEN + 1), GFP_KERNEL);
if (!buffer) {
dev_err(rr3->dev, "Memory allocation failure\n");
@@ -606,7 +558,6 @@ static void redrat3_get_firmware_rev(struct redrat3_dev *rr3)
dev_err(rr3->dev, "Problem fetching firmware ID\n");
kfree(buffer);
- rr3_ftr(rr3->dev, "Exiting %s\n", __func__);
}
static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len)
@@ -614,8 +565,6 @@ static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len)
struct redrat3_header *header = rr3->bulk_in_buf;
unsigned pktlen, pkttype;
- rr3_ftr(rr3->dev, "Entering %s\n", __func__);
-
/* grab the Length and type of transfer */
pktlen = be16_to_cpu(header->length);
pkttype = be16_to_cpu(header->transfer_type);
@@ -637,12 +586,12 @@ static void redrat3_read_packet_start(struct redrat3_dev *rr3, unsigned len)
case RR3_MOD_SIGNAL_IN:
memcpy(&rr3->irdata, rr3->bulk_in_buf, len);
rr3->bytes_read = len;
- rr3_dbg(rr3->dev, "bytes_read %d, pktlen %d\n",
+ dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n",
rr3->bytes_read, pktlen);
break;
default:
- rr3_dbg(rr3->dev, "ignoring packet with type 0x%02x, len of %d, 0x%02x\n",
+ dev_dbg(rr3->dev, "ignoring packet with type 0x%02x, len of %d, 0x%02x\n",
pkttype, len, pktlen);
break;
}
@@ -652,8 +601,6 @@ static void redrat3_read_packet_continue(struct redrat3_dev *rr3, unsigned len)
{
void *irdata = &rr3->irdata;
- rr3_ftr(rr3->dev, "Entering %s\n", __func__);
-
if (len + rr3->bytes_read > sizeof(rr3->irdata)) {
dev_warn(rr3->dev, "too much data for packet\n");
rr3->bytes_read = 0;
@@ -663,7 +610,7 @@ static void redrat3_read_packet_continue(struct redrat3_dev *rr3, unsigned len)
memcpy(irdata + rr3->bytes_read, rr3->bulk_in_buf, len);
rr3->bytes_read += len;
- rr3_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", rr3->bytes_read,
+ dev_dbg(rr3->dev, "bytes_read %d, pktlen %d\n", rr3->bytes_read,
be16_to_cpu(rr3->irdata.header.length));
}
@@ -674,8 +621,6 @@ static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len)
unsigned pkttype;
int ret = 0;
- rr3_ftr(dev, "Entering %s\n", __func__);
-
if (rr3->bytes_read == 0 && len >= sizeof(struct redrat3_header)) {
redrat3_read_packet_start(rr3, len);
} else if (rr3->bytes_read != 0) {
@@ -686,7 +631,8 @@ static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len)
goto out;
}
- if (rr3->bytes_read < be16_to_cpu(rr3->irdata.header.length))
+ if (rr3->bytes_read < be16_to_cpu(rr3->irdata.header.length) +
+ sizeof(struct redrat3_header))
/* we're still accumulating data */
return 0;
@@ -695,7 +641,7 @@ static int redrat3_get_ir_data(struct redrat3_dev *rr3, unsigned len)
if (pkttype == RR3_MOD_SIGNAL_IN)
redrat3_process_ir_data(rr3);
else
- rr3_dbg(dev, "discarding non-signal data packet (type 0x%02x)\n",
+ dev_dbg(dev, "discarding non-signal data packet (type 0x%02x)\n",
pkttype);
out:
@@ -719,8 +665,6 @@ static void redrat3_handle_async(struct urb *urb)
return;
}
- rr3_ftr(rr3->dev, "Entering %s\n", __func__);
-
switch (urb->status) {
case 0:
ret = redrat3_get_ir_data(rr3, urb->actual_length);
@@ -757,7 +701,7 @@ static int redrat3_set_tx_carrier(struct rc_dev *rcdev, u32 carrier)
struct redrat3_dev *rr3 = rcdev->priv;
struct device *dev = rr3->dev;
- rr3_dbg(dev, "Setting modulation frequency to %u", carrier);
+ dev_dbg(dev, "Setting modulation frequency to %u", carrier);
if (carrier == 0)
return -EINVAL;
@@ -778,17 +722,15 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
u8 curlencheck = 0;
unsigned i, sendbuf_len;
- rr3_ftr(dev, "Entering %s\n", __func__);
-
if (rr3->transmitting) {
dev_warn(dev, "%s: transmitter already in use\n", __func__);
return -EAGAIN;
}
- count = min_t(unsigned, count, RR3_MAX_SIG_SIZE - RR3_TX_TRAILER_LEN);
+ if (count > RR3_MAX_SIG_SIZE - RR3_TX_TRAILER_LEN)
+ return -EINVAL;
/* rr3 will disable rc detector on transmit */
- rr3->det_enabled = false;
rr3->transmitting = true;
sample_lens = kzalloc(sizeof(int) * RR3_DRIVER_MAXLENS, GFP_KERNEL);
@@ -815,7 +757,7 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
break;
}
if (lencheck == curlencheck) {
- rr3_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n",
+ dev_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n",
i, txbuf[i], curlencheck, cur_sample_len);
if (curlencheck < RR3_DRIVER_MAXLENS) {
/* now convert the value to a proper
@@ -825,8 +767,8 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
&irdata->lens[curlencheck]);
curlencheck++;
} else {
- count = i - 1;
- break;
+ ret = -EINVAL;
+ goto out;
}
}
irdata->sigdata[i] = lencheck;
@@ -849,7 +791,7 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress);
ret = usb_bulk_msg(rr3->udev, pipe, irdata,
sendbuf_len, &ret_len, 10 * HZ);
- rr3_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret);
+ dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret);
/* now tell the hardware to transmit what we sent it */
pipe = usb_rcvctrlpipe(rr3->udev, 0);
@@ -868,11 +810,48 @@ out:
rr3->transmitting = false;
/* rr3 re-enables rc detector because it was enabled before */
- rr3->det_enabled = true;
return ret;
}
+static void redrat3_brightness_set(struct led_classdev *led_dev, enum
+ led_brightness brightness)
+{
+ struct redrat3_dev *rr3 = container_of(led_dev, struct redrat3_dev,
+ led);
+
+ if (brightness != LED_OFF && atomic_cmpxchg(&rr3->flash, 0, 1) == 0) {
+ int ret = usb_submit_urb(rr3->flash_urb, GFP_ATOMIC);
+ if (ret != 0) {
+ dev_dbg(rr3->dev, "%s: unexpected ret of %d\n",
+ __func__, ret);
+ atomic_set(&rr3->flash, 0);
+ }
+ }
+}
+
+static void redrat3_led_complete(struct urb *urb)
+{
+ struct redrat3_dev *rr3 = urb->context;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ usb_unlink_urb(urb);
+ return;
+ case -EPIPE:
+ default:
+ dev_dbg(rr3->dev, "Error: urb status = %d\n", urb->status);
+ break;
+ }
+
+ rr3->led.brightness = LED_OFF;
+ atomic_dec(&rr3->flash);
+}
+
static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3)
{
struct device *dev = rr3->dev;
@@ -899,7 +878,7 @@ static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3)
rc->dev.parent = dev;
rc->priv = rr3;
rc->driver_type = RC_DRIVER_IR_RAW;
- rc->allowed_protos = RC_BIT_ALL;
+ rc_set_allowed_protocols(rc, RC_BIT_ALL);
rc->timeout = US_TO_NS(2750);
rc->tx_ir = redrat3_transmit_ir;
rc->s_tx_carrier = redrat3_set_tx_carrier;
@@ -934,8 +913,6 @@ static int redrat3_dev_probe(struct usb_interface *intf,
int pipe, i;
int retval = -ENOMEM;
- rr3_ftr(dev, "%s called\n", __func__);
-
uhi = intf->cur_altsetting;
/* find our bulk-in and bulk-out endpoints */
@@ -948,7 +925,7 @@ static int redrat3_dev_probe(struct usb_interface *intf,
((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
((attrs & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
- rr3_dbg(dev, "found bulk-in endpoint at 0x%02x\n",
+ dev_dbg(dev, "found bulk-in endpoint at 0x%02x\n",
ep->bEndpointAddress);
/* data comes in on 0x82, 0x81 is for other data... */
if (ep->bEndpointAddress == RR3_BULK_IN_EP_ADDR)
@@ -959,7 +936,7 @@ static int redrat3_dev_probe(struct usb_interface *intf,
((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) &&
((attrs & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_BULK)) {
- rr3_dbg(dev, "found bulk-out endpoint at 0x%02x\n",
+ dev_dbg(dev, "found bulk-out endpoint at 0x%02x\n",
ep->bEndpointAddress);
ep_out = ep;
}
@@ -1016,19 +993,45 @@ static int redrat3_dev_probe(struct usb_interface *intf,
/* default.. will get overridden by any sends with a freq defined */
rr3->carrier = 38000;
+ /* led control */
+ rr3->led.name = "redrat3:red:feedback";
+ rr3->led.default_trigger = "rc-feedback";
+ rr3->led.brightness_set = redrat3_brightness_set;
+ retval = led_classdev_register(&intf->dev, &rr3->led);
+ if (retval)
+ goto error;
+
+ atomic_set(&rr3->flash, 0);
+ rr3->flash_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!rr3->flash_urb) {
+ retval = -ENOMEM;
+ goto led_free_error;
+ }
+
+ /* setup packet is 'c0 b9 0000 0000 0001' */
+ rr3->flash_control.bRequestType = 0xc0;
+ rr3->flash_control.bRequest = RR3_BLINK_LED;
+ rr3->flash_control.wLength = cpu_to_le16(1);
+
+ usb_fill_control_urb(rr3->flash_urb, udev, usb_rcvctrlpipe(udev, 0),
+ (unsigned char *)&rr3->flash_control,
+ &rr3->flash_in_buf, sizeof(rr3->flash_in_buf),
+ redrat3_led_complete, rr3);
+
rr3->rc = redrat3_init_rc_dev(rr3);
if (!rr3->rc) {
retval = -ENOMEM;
- goto error;
+ goto led_free_error;
}
setup_timer(&rr3->rx_timeout, redrat3_rx_timeout, (unsigned long)rr3);
/* we can register the device now, as it is ready */
usb_set_intfdata(intf, rr3);
- rr3_ftr(dev, "Exiting %s\n", __func__);
return 0;
+led_free_error:
+ led_classdev_unregister(&rr3->led);
error:
redrat3_delete(rr3, rr3->udev);
@@ -1043,35 +1046,33 @@ static void redrat3_dev_disconnect(struct usb_interface *intf)
struct usb_device *udev = interface_to_usbdev(intf);
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
- rr3_ftr(&intf->dev, "Entering %s\n", __func__);
-
if (!rr3)
return;
- redrat3_disable_detector(rr3);
-
usb_set_intfdata(intf, NULL);
rc_unregister_device(rr3->rc);
+ led_classdev_unregister(&rr3->led);
del_timer_sync(&rr3->rx_timeout);
redrat3_delete(rr3, udev);
-
- rr3_ftr(&intf->dev, "RedRat3 IR Transceiver now disconnected\n");
}
static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message)
{
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
- rr3_ftr(rr3->dev, "suspend\n");
+
+ led_classdev_suspend(&rr3->led);
usb_kill_urb(rr3->read_urb);
+ usb_kill_urb(rr3->flash_urb);
return 0;
}
static int redrat3_dev_resume(struct usb_interface *intf)
{
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
- rr3_ftr(rr3->dev, "resume\n");
+
if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC))
return -EIO;
+ led_classdev_resume(&rr3->led);
return 0;
}
@@ -1092,8 +1093,3 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_AUTHOR(DRIVER_AUTHOR2);
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(usb, redrat3_dev_table);
-
-module_param(debug, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable module debug spew. 0 = no debugging (default) "
- "0x1 = standard debug messages, 0x2 = function tracing debug. "
- "Flag bits are addative (i.e., 0x3 for both debug types).");