diff options
Diffstat (limited to 'drivers/media/video/cx231xx/cx231xx-video.c')
| -rw-r--r-- | drivers/media/video/cx231xx/cx231xx-video.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/media/video/cx231xx/cx231xx-video.c b/drivers/media/video/cx231xx/cx231xx-video.c index 21fa54762be7..6e81f970dc7d 100644 --- a/drivers/media/video/cx231xx/cx231xx-video.c +++ b/drivers/media/video/cx231xx/cx231xx-video.c @@ -1179,7 +1179,8 @@ static int vidioc_enum_input(struct file *file, void *priv, { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; - unsigned int n; + u32 gen_stat; + unsigned int ret, n; n = i->index; if (n >= MAX_CX231XX_INPUT) @@ -1198,6 +1199,18 @@ static int vidioc_enum_input(struct file *file, void *priv, i->std = dev->vdev->tvnorms; + /* If they are asking about the active input, read signal status */ + if (n == dev->video_input) { + ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, + GEN_STAT, 2, &gen_stat, 4); + if (ret > 0) { + if ((gen_stat & FLD_VPRES) == 0x00) + i->status |= V4L2_IN_ST_NO_SIGNAL; + if ((gen_stat & FLD_HLOCK) == 0x00) + i->status |= V4L2_IN_ST_NO_H_LOCK; + } + } + return 0; } |