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V4L/DVB (5410): Add VIDIOC_G/S_PRIORITY support to ivtv. 

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-03-10 17:59:15 -03:00 committed by Mauro Carvalho Chehab
parent a542fe47fe
commit d46c17d7aa
3 changed files with 42 additions and 0 deletions
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2
drivers/media/video/ivtv/ivtv-driver.h
View File

@ -502,6 +502,7 @@ struct ivtv_stream {
struct ivtv_open_id {
u32 open_id;
int type;
enum v4l2_priority prio;
struct ivtv *itv;
};
@ -732,6 +733,7 @@ struct ivtv {
u32 base_addr;
u32 irqmask;
struct v4l2_prio_state prio;
struct workqueue_struct *irq_work_queues;
struct work_struct irq_work_queue;
struct timer_list dma_timer; /* Timer used to catch unfinished DMAs */

3
drivers/media/video/ivtv/ivtv-fileops.c
View File

@ -766,6 +766,8 @@ int ivtv_v4l2_close(struct inode *inode, struct file *filp)
IVTV_DEBUG_IOCTL("close() of %s\n", s->name);
v4l2_prio_close(&itv->prio, &id->prio);
/* Easy case first: this stream was never claimed by us */
if (s->id != id->open_id) {
kfree(id);
@ -849,6 +851,7 @@ int ivtv_v4l2_open(struct inode *inode, struct file *filp)
}
item->itv = itv;
item->type = y;
v4l2_prio_open(&itv->prio, &item->prio);
item->open_id = itv->open_id++;
filp->private_data = item;

37
drivers/media/video/ivtv/ivtv-ioctl.c
View File

@ -703,6 +703,21 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
if (filp) id = (struct ivtv_open_id *)filp->private_data;
switch (cmd) {
case VIDIOC_G_PRIORITY:
{
enum v4l2_priority *p = arg;
*p = v4l2_prio_max(&itv->prio);
break;
}
case VIDIOC_S_PRIORITY:
{
enum v4l2_priority *prio = arg;
return v4l2_prio_change(&itv->prio, &id->prio, *prio);
}
case VIDIOC_QUERYCAP:{
struct v4l2_capability *vcap = arg;
@ -1441,9 +1456,29 @@ static int ivtv_v4l2_do_ioctl(struct inode *inode, struct file *filp,
{
struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
struct ivtv *itv = id->itv;
int ret;
IVTV_DEBUG_IOCTL("v4l2 ioctl 0x%08x\n", cmd);
/* check priority */
switch (cmd) {
case VIDIOC_S_CTRL:
case VIDIOC_S_STD:
case VIDIOC_S_INPUT:
case VIDIOC_S_OUTPUT:
case VIDIOC_S_TUNER:
case VIDIOC_S_FREQUENCY:
case VIDIOC_S_FMT:
case VIDIOC_S_CROP:
case VIDIOC_S_AUDIO:
case VIDIOC_S_AUDOUT:
case VIDIOC_S_EXT_CTRLS:
case VIDIOC_S_FBUF:
ret = v4l2_prio_check(&itv->prio, &id->prio);
if (ret)
return ret;
}
switch (cmd) {
case VIDIOC_DBG_G_REGISTER:
case VIDIOC_DBG_S_REGISTER:
@ -1452,6 +1487,8 @@ static int ivtv_v4l2_do_ioctl(struct inode *inode, struct file *filp,
case VIDIOC_INT_RESET:
return ivtv_internal_ioctls(filp, cmd, arg);
case VIDIOC_G_PRIORITY:
case VIDIOC_S_PRIORITY:
case VIDIOC_QUERYCAP:
case VIDIOC_ENUMINPUT:
case VIDIOC_G_INPUT: