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V4L/DVB (4243): Exploit new V4L control features in pvrusb2 

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mike Isely 2006-06-25 20:04:58 -03:00 committed by Mauro Carvalho Chehab
parent b46cfa805e
commit 1d9f8461f1
2 changed files with 76 additions and 2 deletions
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5
drivers/media/video/pvrusb2/pvrusb2-ctrl.c
View File

@ -230,6 +230,11 @@ unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *cptr)
flags = cptr->info->get_v4lflags(cptr);
}
if (cptr->info->set_value) {
flags &= ~V4L2_CTRL_FLAG_READ_ONLY;
} else {
flags |= V4L2_CTRL_FLAG_READ_ONLY;
}
return flags;
}

73
drivers/media/video/pvrusb2/pvrusb2-v4l2.c
View File

@ -518,7 +518,13 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
struct pvr2_ctrl *cptr;
struct v4l2_queryctrl *vc = (struct v4l2_queryctrl *)arg;
ret = 0;
cptr = pvr2_hdw_get_ctrl_v4l(hdw,vc->id);
if (vc->id & V4L2_CTRL_FLAG_NEXT_CTRL) {
cptr = pvr2_hdw_get_ctrl_nextv4l(
hdw,(vc->id & ~V4L2_CTRL_FLAG_NEXT_CTRL));
if (cptr) vc->id = pvr2_ctrl_get_v4lid(cptr);
} else {
cptr = pvr2_hdw_get_ctrl_v4l(hdw,vc->id);
}
if (!cptr) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"QUERYCTRL id=0x%x not implemented here",
@ -542,7 +548,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
vc->step = 1;
break;
case pvr2_ctl_bool:
vc->type = V4L2_CTRL_TYPE_INTEGER;
vc->type = V4L2_CTRL_TYPE_BOOLEAN;
vc->minimum = 0;
vc->maximum = 1;
vc->step = 1;
@ -593,6 +599,69 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
break;
}
case VIDIOC_G_EXT_CTRLS:
{
struct v4l2_ext_controls *ctls =
(struct v4l2_ext_controls *)arg;
struct v4l2_ext_control *ctrl;
unsigned int idx;
int val;
for (idx = 0; idx < ctls->count; idx++) {
ctrl = ctls->controls + idx;
ret = pvr2_ctrl_get_value(
pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id),&val);
if (ret) {
ctls->error_idx = idx;
break;
}
/* Ensure that if read as a 64 bit value, the user
will still get a hopefully sane value */
ctrl->value64 = 0;
ctrl->value = val;
}
break;
}
case VIDIOC_S_EXT_CTRLS:
{
struct v4l2_ext_controls *ctls =
(struct v4l2_ext_controls *)arg;
struct v4l2_ext_control *ctrl;
unsigned int idx;
for (idx = 0; idx < ctls->count; idx++) {
ctrl = ctls->controls + idx;
ret = pvr2_ctrl_set_value(
pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id),
ctrl->value);
if (ret) {
ctls->error_idx = idx;
break;
}
}
break;
}
case VIDIOC_TRY_EXT_CTRLS:
{
struct v4l2_ext_controls *ctls =
(struct v4l2_ext_controls *)arg;
struct v4l2_ext_control *ctrl;
struct pvr2_ctrl *pctl;
unsigned int idx;
/* For the moment just validate that the requested control
actually exists. */
for (idx = 0; idx < ctls->count; idx++) {
ctrl = ctls->controls + idx;
pctl = pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id);
if (!pctl) {
ret = -EINVAL;
ctls->error_idx = idx;
break;
}
}
break;
}
case VIDIOC_LOG_STATUS:
{
pvr2_hdw_trigger_module_log(hdw);