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path: root/drivers/media/video/cx88/cx88-video.c
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Diffstat (limited to 'drivers/media/video/cx88/cx88-video.c')
-rw-r--r--drivers/media/video/cx88/cx88-video.c59
1 files changed, 46 insertions, 13 deletions
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index 8d5cf474b68..fe147e3aaa7 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -327,6 +327,51 @@ static struct cx88_ctrl cx8800_ctls[] = {
};
static const int CX8800_CTLS = ARRAY_SIZE(cx8800_ctls);
+const u32 cx88_user_ctrls[] = {
+ V4L2_CID_USER_CLASS,
+ V4L2_CID_BRIGHTNESS,
+ V4L2_CID_CONTRAST,
+ V4L2_CID_SATURATION,
+ V4L2_CID_HUE,
+ V4L2_CID_AUDIO_VOLUME,
+ V4L2_CID_AUDIO_BALANCE,
+ V4L2_CID_AUDIO_MUTE,
+ 0
+};
+EXPORT_SYMBOL(cx88_user_ctrls);
+
+static const u32 *ctrl_classes[] = {
+ cx88_user_ctrls,
+ NULL
+};
+
+int cx8800_ctrl_query(struct v4l2_queryctrl *qctrl)
+{
+ int i;
+
+ if (qctrl->id < V4L2_CID_BASE ||
+ qctrl->id >= V4L2_CID_LASTP1)
+ return -EINVAL;
+ for (i = 0; i < CX8800_CTLS; i++)
+ if (cx8800_ctls[i].v.id == qctrl->id)
+ break;
+ if (i == CX8800_CTLS) {
+ *qctrl = no_ctl;
+ return 0;
+ }
+ *qctrl = cx8800_ctls[i].v;
+ return 0;
+}
+EXPORT_SYMBOL(cx8800_ctrl_query);
+
+static int cx88_queryctrl(struct v4l2_queryctrl *qctrl)
+{
+ qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
+ if (qctrl->id == 0)
+ return -EINVAL;
+ return cx8800_ctrl_query(qctrl);
+}
+
/* ------------------------------------------------------------------- */
/* resource management */
@@ -1362,20 +1407,8 @@ int cx88_do_ioctl(struct inode *inode, struct file *file, int radio,
case VIDIOC_QUERYCTRL:
{
struct v4l2_queryctrl *c = arg;
- int i;
- if (c->id < V4L2_CID_BASE ||
- c->id >= V4L2_CID_LASTP1)
- return -EINVAL;
- for (i = 0; i < CX8800_CTLS; i++)
- if (cx8800_ctls[i].v.id == c->id)
- break;
- if (i == CX8800_CTLS) {
- *c = no_ctl;
- return 0;
- }
- *c = cx8800_ctls[i].v;
- return 0;
+ return cx88_queryctrl(c);
}
case VIDIOC_G_CTRL:
return get_control(core,arg);