diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-blackbird.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-blackbird.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index 4ff81582ec5..349632b48e9 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -686,6 +686,39 @@ static struct videobuf_queue_ops blackbird_qops = { /* ------------------------------------------------------------------ */ +static const u32 *ctrl_classes[] = { + cx88_user_ctrls, + cx2341x_mpeg_ctrls, + NULL +}; + +static int blackbird_queryctrl(struct cx8802_dev *dev, struct v4l2_queryctrl *qctrl) +{ + qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); + if (qctrl->id == 0) + return -EINVAL; + + /* Standard V4L2 controls */ + if (cx8800_ctrl_query(qctrl) == 0) + return 0; + + /* MPEG V4L2 controls */ + if (cx2341x_ctrl_query(&dev->params, qctrl)) + qctrl->flags |= V4L2_CTRL_FLAG_DISABLED; + return 0; +} + +static int blackbird_querymenu(struct cx8802_dev *dev, struct v4l2_querymenu *qmenu) +{ + struct v4l2_queryctrl qctrl; + + qctrl.id = qmenu->id; + blackbird_queryctrl(dev, &qctrl); + return v4l2_ctrl_query_menu(qmenu, &qctrl, cx2341x_ctrl_get_menu(qmenu->id)); +} + +/* ------------------------------------------------------------------ */ + static int mpeg_do_ioctl(struct inode *inode, struct file *file, unsigned int cmd, void *arg) { @@ -866,6 +899,16 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file, core->name); return 0; } + case VIDIOC_QUERYMENU: + return blackbird_querymenu(dev, arg); + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *c = arg; + + if (blackbird_queryctrl(dev, c) == 0) + return 0; + return cx88_do_ioctl(inode, file, 0, dev->core, cmd, arg, mpeg_do_ioctl); + } default: return cx88_do_ioctl(inode, file, 0, dev->core, cmd, arg, mpeg_do_ioctl); |