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| author | Jonathan Corbet <corbet@lwn.net> | 2006-12-01 15:50:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-12-10 09:05:31 -0200 |
| commit | c8f5b2f5607e78c61df229259c539a5d9488a013 (patch) | |
| tree | 918f87bf2f2a85e020bac3f45297a1f4c05a6208 /drivers/media/video/cafe_ccic.c | |
| parent | a66d23368068d6027feedc010304d510e6d1fe56 (diff) | |
| download | linux-c8f5b2f5607e78c61df229259c539a5d9488a013.tar.gz linux-c8f5b2f5607e78c61df229259c539a5d9488a013.tar.bz2 linux-c8f5b2f5607e78c61df229259c539a5d9488a013.zip | |
V4L/DVB (4909): Add s/g_parm to cafe_ccic
Add s/g_parm support allowing applications to tweak the frame rate.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/cafe_ccic.c')
| -rw-r--r-- | drivers/media/video/cafe_ccic.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c index 9d9844e22951..e347c7ebc984 100644 --- a/drivers/media/video/cafe_ccic.c +++ b/drivers/media/video/cafe_ccic.c @@ -1671,6 +1671,37 @@ static int cafe_vidioc_s_std(struct file *filp, void *priv, v4l2_std_id *a) return 0; } +/* + * G/S_PARM. Most of this is done by the sensor, but we are + * the level which controls the number of read buffers. + */ +static int cafe_vidioc_g_parm(struct file *filp, void *priv, + struct v4l2_streamparm *parms) +{ + struct cafe_camera *cam = priv; + int ret; + + mutex_lock(&cam->s_mutex); + ret = __cafe_cam_cmd(cam, VIDIOC_G_PARM, parms); + mutex_unlock(&cam->s_mutex); + parms->parm.capture.readbuffers = n_dma_bufs; + return ret; +} + +static int cafe_vidioc_s_parm(struct file *filp, void *priv, + struct v4l2_streamparm *parms) +{ + struct cafe_camera *cam = priv; + int ret; + + mutex_lock(&cam->s_mutex); + ret = __cafe_cam_cmd(cam, VIDIOC_S_PARM, parms); + mutex_unlock(&cam->s_mutex); + parms->parm.capture.readbuffers = n_dma_bufs; + return ret; +} + + static void cafe_v4l_dev_release(struct video_device *vd) { struct cafe_camera *cam = container_of(vd, struct cafe_camera, v4ldev); @@ -1724,7 +1755,8 @@ static struct video_device cafe_v4l_template = { .vidioc_queryctrl = cafe_vidioc_queryctrl, .vidioc_g_ctrl = cafe_vidioc_g_ctrl, .vidioc_s_ctrl = cafe_vidioc_s_ctrl, - /* Do cropping someday */ + .vidioc_g_parm = cafe_vidioc_g_parm, + .vidioc_s_parm = cafe_vidioc_s_parm, }; |