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authorHans Verkuil <hverkuil@xs4all.nl>2006-04-02 12:50:42 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-06-25 01:57:36 -0300
commitb7f8292c96463810edfecff70dd4631d47e5a36b (patch)
tree02b1cfb3f753ea82c6fa51c901420074875be355 /drivers/media/video/v4l2-common.c
parent2eb606db1134ce860cc0cbf8b533b6315d182e21 (diff)
downloadop-kernel-dev-b7f8292c96463810edfecff70dd4631d47e5a36b.zip
op-kernel-dev-b7f8292c96463810edfecff70dd4631d47e5a36b.tar.gz
V4L/DVB (3711): Add support for VIDIOC_INT_S_CRYSTAL_FREQ internal command.
Some saa7115-based cards use a different crystal frequency and a different audio clock generation. Add a new VIDIOC_INT_S_CRYSTAL_FREQ command to be able to set these values. Also change the default APLL setting to 0. It makes no sense to have the audio clock independent from the video clock, this can lead to audio/video synchronization problems. Setting this to 0 is also consistent with the old saa7114.c source and the way the Hauppauge Windows driver sets it. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/v4l2-common.c')
-rw-r--r--drivers/media/video/v4l2-common.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index d330fa9..ad92e07 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -331,7 +331,8 @@ static const char *v4l2_int_ioctls[] = {
[_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)] = "VIDIOC_INT_S_AUDIO_ROUTING",
[_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)] = "VIDIOC_INT_G_AUDIO_ROUTING",
[_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)] = "VIDIOC_INT_S_VIDEO_ROUTING",
- [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING"
+ [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING",
+ [_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)] = "VIDIOC_INT_S_CRYSTAL_FREQ"
};
#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
@@ -667,6 +668,12 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg)
printk ("%s: input=0x%x, output=0x%x\n", s, p->input, p->output);
break;
}
+ case VIDIOC_INT_S_CRYSTAL_FREQ:
+ {
+ struct v4l2_crystal_freq *p=arg;
+ printk ("%s: freq=%u, flags=0x%x\n", s, p->freq, p->flags);
+ break;
+ }
case VIDIOC_G_SLICED_VBI_CAP:
{
struct v4l2_sliced_vbi_cap *p=arg;
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