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V4L/DVB: cx23885, cx25840: Report the actual length of an IR Rx timeout event 

Instead of reporting an IR Rx timeout event as a ridiculously
long space, report it as a space of the lenght of the timeout.

This partially fixes operation with LIRC without breaking
interoperation with the in kernel decoders.  The gaps lengths
reported to LIRC are still not real however.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2010-07-31 23:28:37 -03:00 committed by Mauro Carvalho Chehab
parent ceb152add6
commit 2560d94e33
3 changed files with 20 additions and 22 deletions
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6
drivers/media/video/cx23885/cx23885-input.c
View File

@ -46,12 +46,6 @@
static void convert_measurement(u32 x, struct ir_raw_event *y)
{
if (x == V4L2_SUBDEV_IR_PULSE_RX_SEQ_END) {
y->pulse = false;
y->duration = V4L2_SUBDEV_IR_PULSE_MAX_WIDTH_NS;
return;
}
y->pulse = (x & V4L2_SUBDEV_IR_PULSE_LEVEL_MASK) ? true : false;
y->duration = x & V4L2_SUBDEV_IR_PULSE_MAX_WIDTH_NS;
}

18
drivers/media/video/cx23885/cx23888-ir.c
View File

@ -675,15 +675,17 @@ static int cx23888_ir_rx_read(struct v4l2_subdev *sd, u8 *buf, size_t count,
*num = n * sizeof(u32);
for (p = (u32 *) buf, i = 0; i < n; p++, i++) {
if ((*p & FIFO_RXTX_RTO) == FIFO_RXTX_RTO) {
*p = V4L2_SUBDEV_IR_PULSE_RX_SEQ_END;
v4l2_dbg(2, ir_888_debug, sd, "rx read: end of rx\n");
continue;
}
u = (*p & FIFO_RXTX_LVL) ? V4L2_SUBDEV_IR_PULSE_LEVEL_MASK : 0;
if (invert)
u = u ? 0 : V4L2_SUBDEV_IR_PULSE_LEVEL_MASK;
if ((*p & FIFO_RXTX_RTO) == FIFO_RXTX_RTO) {
/* Assume RTO was because of no IR light input */
u = 0;
v4l2_dbg(2, ir_888_debug, sd, "rx read: end of rx\n");
} else {
u = (*p & FIFO_RXTX_LVL)
? V4L2_SUBDEV_IR_PULSE_LEVEL_MASK : 0;
if (invert)
u = u ? 0 : V4L2_SUBDEV_IR_PULSE_LEVEL_MASK;
}
v = (u32) pulse_width_count_to_ns((u16) (*p & FIFO_RXTX),
divider);

18
drivers/media/video/cx25840/cx25840-ir.c
View File

@ -677,15 +677,17 @@ static int cx25840_ir_rx_read(struct v4l2_subdev *sd, u8 *buf, size_t count,
*num = n * sizeof(u32);
for (p = (u32 *) buf, i = 0; i < n; p++, i++) {
if ((*p & FIFO_RXTX_RTO) == FIFO_RXTX_RTO) {
*p = V4L2_SUBDEV_IR_PULSE_RX_SEQ_END;
v4l2_dbg(2, ir_debug, sd, "rx read: end of rx\n");
continue;
}
u = (*p & FIFO_RXTX_LVL) ? V4L2_SUBDEV_IR_PULSE_LEVEL_MASK : 0;
if (invert)
u = u ? 0 : V4L2_SUBDEV_IR_PULSE_LEVEL_MASK;
if ((*p & FIFO_RXTX_RTO) == FIFO_RXTX_RTO) {
/* Assume RTO was because of no IR light input */
u = 0;
v4l2_dbg(2, ir_debug, sd, "rx read: end of rx\n");
} else {
u = (*p & FIFO_RXTX_LVL)
? V4L2_SUBDEV_IR_PULSE_LEVEL_MASK : 0;
if (invert)
u = u ? 0 : V4L2_SUBDEV_IR_PULSE_LEVEL_MASK;
}
v = (u32) pulse_width_count_to_ns((u16) (*p & FIFO_RXTX),
divider);