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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2011-03-22 10:14:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 16:38:16 -0300 |
| commit | b1a873a37b6551a214ad37d1eee7654a9d65fd6e (patch) | |
| tree | 3667a3d36c9f7c6ae73609004331f006751c44be /drivers/media/video/v4l2-ioctl.c | |
| parent | 2f82441a8644287e5b647329cc30b590f6fd3714 (diff) | |
| download | kernel_samsung_smdk4412-b1a873a37b6551a214ad37d1eee7654a9d65fd6e.zip kernel_samsung_smdk4412-b1a873a37b6551a214ad37d1eee7654a9d65fd6e.tar.gz kernel_samsung_smdk4412-b1a873a37b6551a214ad37d1eee7654a9d65fd6e.tar.bz2 | |
[media] v4l2: use new flag to enable core priority handling
Rather than guess which driver supports core priority handling, require drivers
that do to explicitly set the V4L2_FL_USE_FH_PRIO flag in video_device.
Updated the core prio handling accordingly and set the flag in the three
drivers that do.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 3e6b6fa..a01ed39 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -541,6 +541,7 @@ static long __video_do_ioctl(struct file *file, void *fh = file->private_data; struct v4l2_fh *vfh = NULL; struct v4l2_format f_copy; + int use_fh_prio = 0; long ret = -EINVAL; if (ops == NULL) { @@ -555,10 +556,12 @@ static long __video_do_ioctl(struct file *file, printk(KERN_CONT "\n"); } - if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) + if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { vfh = file->private_data; + use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); + } - if (vfh && !ops->vidioc_s_priority) { + if (use_fh_prio) { switch (cmd) { case VIDIOC_S_CTRL: case VIDIOC_S_STD: @@ -620,7 +623,7 @@ static long __video_do_ioctl(struct file *file, if (ops->vidioc_g_priority) { ret = ops->vidioc_g_priority(file, fh, p); - } else if (vfh) { + } else if (use_fh_prio) { *p = v4l2_prio_max(&vfd->v4l2_dev->prio); ret = 0; } @@ -632,7 +635,7 @@ static long __video_do_ioctl(struct file *file, { enum v4l2_priority *p = arg; - if (!ops->vidioc_s_priority && vfh == NULL) + if (!ops->vidioc_s_priority && !use_fh_prio) break; dbgarg(cmd, "setting priority to %d\n", *p); if (ops->vidioc_s_priority) @@ -2187,7 +2190,7 @@ static long __video_do_ioctl(struct file *file, if (!ops->vidioc_default) break; - if (vfh && !ops->vidioc_s_priority) + if (use_fh_prio) valid_prio = v4l2_prio_check(vfd->prio, vfh->prio) >= 0; ret = ops->vidioc_default(file, fh, valid_prio, cmd, arg); break; |