From 38a2713ada91d5e7e4c0a1a0b12e45e2ec7079c3 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 26 Jun 2006 23:42:39 -0300 Subject: [PATCH] V4L/DVB (4264): Cx88-blackbird: implement VIDIOC_QUERYCTRL and VIDIOC_QUERYMENU This patch implements the newer v4l2 control features to make the standard user controls and mpeg encoder controls of cx88-blackbird video encoder boards available to userspace. Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/cx88-blackbird.c | 43 +++++++++++++++++ drivers/media/video/cx88/cx88-video.c | 59 ++++++++++++++++++----- drivers/media/video/cx88/cx88.h | 2 + 3 files changed, 91 insertions(+), 13 deletions(-) diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index 4ff81582ec56..349632b48e93 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); diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 8d5cf474b68e..fe147e3aaa70 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); diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h index 9a9a0fc7a41a..336e823c7588 100644 --- a/drivers/media/video/cx88/cx88.h +++ b/drivers/media/video/cx88/cx88.h @@ -590,6 +590,8 @@ int cx8802_resume_common(struct pci_dev *pci_dev); extern int cx88_do_ioctl(struct inode *inode, struct file *file, int radio, struct cx88_core *core, unsigned int cmd, void *arg, v4l2_kioctl driver_ioctl); +extern const u32 cx88_user_ctrls[]; +extern int cx8800_ctrl_query(struct v4l2_queryctrl *qctrl); /* * Local variables: -- 2.20.1