diff options
| author | Jim Paris <jim@jtan.com> | 2008-12-10 06:02:42 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:39:01 -0200 |
| commit | 627a5ef7893fa127925b99e2597c8210202c75aa (patch) | |
| tree | f7b542b02bb4888dc3efe3b250c823d17931905e | |
| parent | c06eb61941459b1981817fb675d0104ac0cd6df8 (diff) | |
V4L/DVB (9876): gspca - main: Allow subdrivers to handle v4l2_streamparm requests.
Add get_streamparm and set_streamparm operations so subdrivers can
get/set stream parameters such as framerate.
Signed-off-by: Jim Paris <jim@jtan.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/gspca/gspca.c | 22 | ||||
| -rw-r--r-- | drivers/media/video/gspca/gspca.h | 4 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index a5c21ca959d..76cfb096e4f 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -1327,6 +1327,17 @@ static int vidioc_g_parm(struct file *filp, void *priv, memset(parm, 0, sizeof *parm); parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; parm->parm.capture.readbuffers = gspca_dev->nbufread; + + if (gspca_dev->sd_desc->get_streamparm) { + int ret; + + if (mutex_lock_interruptible(&gspca_dev->usb_lock)) + return -ERESTARTSYS; + ret = gspca_dev->sd_desc->get_streamparm(gspca_dev, parm); + mutex_unlock(&gspca_dev->usb_lock); + return ret; + } + return 0; } @@ -1341,6 +1352,17 @@ static int vidioc_s_parm(struct file *filp, void *priv, parm->parm.capture.readbuffers = gspca_dev->nbufread; else gspca_dev->nbufread = n; + + if (gspca_dev->sd_desc->set_streamparm) { + int ret; + + if (mutex_lock_interruptible(&gspca_dev->usb_lock)) + return -ERESTARTSYS; + ret = gspca_dev->sd_desc->set_streamparm(gspca_dev, parm); + mutex_unlock(&gspca_dev->usb_lock); + return ret; + } + return 0; } diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h index 15db13296b8..79cef31a5e3 100644 --- a/drivers/media/video/gspca/gspca.h +++ b/drivers/media/video/gspca/gspca.h @@ -74,6 +74,8 @@ typedef void (*cam_v_op) (struct gspca_dev *); typedef int (*cam_cf_op) (struct gspca_dev *, const struct usb_device_id *); typedef int (*cam_jpg_op) (struct gspca_dev *, struct v4l2_jpegcompression *); +typedef int (*cam_streamparm_op) (struct gspca_dev *, + struct v4l2_streamparm *); typedef int (*cam_qmnu_op) (struct gspca_dev *, struct v4l2_querymenu *); typedef void (*cam_pkt_op) (struct gspca_dev *gspca_dev, @@ -106,6 +108,8 @@ struct sd_desc { cam_jpg_op get_jcomp; cam_jpg_op set_jcomp; cam_qmnu_op querymenu; + cam_streamparm_op get_streamparm; + cam_streamparm_op set_streamparm; }; /* packet types when moving from iso buf to frame buf */ |