diff options
Diffstat (limited to 'drivers/media/video/cx25840/cx25840-ir.c')
| -rw-r--r-- | drivers/media/video/cx25840/cx25840-ir.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/media/video/cx25840/cx25840-ir.c b/drivers/media/video/cx25840/cx25840-ir.c index 326c2554c05c..be23c5b37a2f 100644 --- a/drivers/media/video/cx25840/cx25840-ir.c +++ b/drivers/media/video/cx25840/cx25840-ir.c @@ -677,16 +677,18 @@ 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; + /* Assume RTO was because of no IR light input */ + u = 0; v4l2_dbg(2, ir_debug, sd, "rx read: end of rx\n"); - continue; + } else { + u = (*p & FIFO_RXTX_LVL) + ? V4L2_SUBDEV_IR_PULSE_LEVEL_MASK : 0; + if (invert) + u = u ? 0 : V4L2_SUBDEV_IR_PULSE_LEVEL_MASK; } - 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); if (v >= V4L2_SUBDEV_IR_PULSE_MAX_WIDTH_NS) |