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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2012-09-14 13:45:43 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-26 16:48:59 +0400 |
| commit | a5338190efc7cfa8c99a6856342a77d21c9a05cf (patch) | |
| tree | e7eb5dd17262a01a9986e6184447cd8e70fea47b /drivers/media/v4l2-core/v4l2-dev.c | |
| parent | 663dc7f3a02712e22ef81f4c7b7b1caecceb8e4f (diff) | |
| download | linux-a5338190efc7cfa8c99a6856342a77d21c9a05cf.tar.xz | |
[media] v4l2-core: tvnorms may be 0 for a given input, handle that case
Currently the core code looks at tvnorms to see whether ENUMSTD
or G_PARM should be enabled. This is not a good check for drivers
that support the STD API on one input and the DV Timings API on another.
In that case tvnorms may be 0.
Instead check whether s_std is present (for ENUMSTD) or whether g_std or
current_norm is present for g_parm.
Also, in the enumstd core function return ENODATA if tvnorms is 0,
because in that case the current input does not support the STD API
and ENUMSTD should return ENODATA for that.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-dev.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-dev.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index 95f92ea4dbd5..498049fa43e4 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -609,7 +609,7 @@ static void determine_valid_ioctls(struct video_device *vdev) SET_VALID_IOCTL(ops, VIDIOC_S_FBUF, vidioc_s_fbuf); SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon); SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff); - if (vdev->tvnorms) + if (ops->vidioc_s_std) set_bit(_IOC_NR(VIDIOC_ENUMSTD), valid_ioctls); if (ops->vidioc_g_std || vdev->current_norm) set_bit(_IOC_NR(VIDIOC_G_STD), valid_ioctls); @@ -663,7 +663,7 @@ static void determine_valid_ioctls(struct video_device *vdev) SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd); SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd); if (ops->vidioc_g_parm || (vdev->vfl_type == VFL_TYPE_GRABBER && - (ops->vidioc_g_std || vdev->tvnorms))) + (ops->vidioc_g_std || vdev->current_norm))) set_bit(_IOC_NR(VIDIOC_G_PARM), valid_ioctls); SET_VALID_IOCTL(ops, VIDIOC_S_PARM, vidioc_s_parm); SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner); |