summaryrefslogtreecommitdiff
path: root/drivers/media/video/ivtv/ivtv-fileops.c
diff options
context:
space:
mode:
authorHans Verkuil <hverkuil@xs4all.nl>2010-03-27 14:10:13 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-19 12:58:08 -0300
commit092501936fc128992456a086193746cf34642815 (patch)
tree6a6910b3fd4f9a1304adfb5af1a4e7a96085960d /drivers/media/video/ivtv/ivtv-fileops.c
parent1bcaf4bd53872e70c4fceec6bbb76044325f337f (diff)
V4L/DVB: ivtv: support the new events API
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-fileops.c')
-rw-r--r--drivers/media/video/ivtv/ivtv-fileops.c53
1 files changed, 41 insertions, 12 deletions
diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c
index babcabd73c08..bee9605bd273 100644
--- a/drivers/media/video/ivtv/ivtv-fileops.c
+++ b/drivers/media/video/ivtv/ivtv-fileops.c
@@ -32,6 +32,7 @@
#include "ivtv-yuv.h"
#include "ivtv-ioctl.h"
#include "ivtv-cards.h"
+#include <media/v4l2-event.h>
#include <media/saa7115.h>
/* This function tries to claim the stream for a specific file descriptor.
@@ -506,7 +507,7 @@ int ivtv_start_capture(struct ivtv_open_id *id)
ssize_t ivtv_v4l2_read(struct file * filp, char __user *buf, size_t count, loff_t * pos)
{
- struct ivtv_open_id *id = filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
int rc;
@@ -541,7 +542,7 @@ int ivtv_start_decoding(struct ivtv_open_id *id, int speed)
ssize_t ivtv_v4l2_write(struct file *filp, const char __user *user_buf, size_t count, loff_t *pos)
{
- struct ivtv_open_id *id = filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
struct yuv_playback_info *yi = &itv->yuv_info;
@@ -711,19 +712,31 @@ retry:
unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
{
- struct ivtv_open_id *id = filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
int res = 0;
/* add stream's waitq to the poll list */
IVTV_DEBUG_HI_FILE("Decoder poll\n");
- poll_wait(filp, &s->waitq, wait);
- set_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);
- if (test_bit(IVTV_F_I_EV_VSYNC, &itv->i_flags) ||
- test_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags))
- res = POLLPRI;
+ /* If there are subscribed events, then only use the new event
+ API instead of the old video.h based API. */
+ if (!list_empty(&id->fh.events->subscribed)) {
+ poll_wait(filp, &id->fh.events->wait, wait);
+ /* Turn off the old-style vsync events */
+ clear_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);
+ if (v4l2_event_pending(&id->fh))
+ res = POLLPRI;
+ } else {
+ /* This is the old-style API which is here only for backwards
+ compatibility. */
+ poll_wait(filp, &s->waitq, wait);
+ set_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);
+ if (test_bit(IVTV_F_I_EV_VSYNC, &itv->i_flags) ||
+ test_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags))
+ res = POLLPRI;
+ }
/* Allow write if buffers are available for writing */
if (s->q_free.buffers)
@@ -733,7 +746,7 @@ unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait)
{
- struct ivtv_open_id *id = filp->private_data;
+ struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
int eof = test_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
@@ -833,13 +846,16 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts)
int ivtv_v4l2_close(struct file *filp)
{
- struct ivtv_open_id *id = filp->private_data;
+ struct v4l2_fh *fh = filp->private_data;
+ struct ivtv_open_id *id = fh2id(fh);
struct ivtv *itv = id->itv;
struct ivtv_stream *s = &itv->streams[id->type];
IVTV_DEBUG_FILE("close %s\n", s->name);
v4l2_prio_close(&itv->prio, &id->prio);
+ v4l2_fh_del(fh);
+ v4l2_fh_exit(fh);
/* Easy case first: this stream was never claimed by us */
if (s->id != id->open_id) {
@@ -895,6 +911,7 @@ static int ivtv_serialized_open(struct ivtv_stream *s, struct file *filp)
{
struct ivtv *itv = s->itv;
struct ivtv_open_id *item;
+ int res = 0;
IVTV_DEBUG_FILE("open %s\n", s->name);
@@ -915,17 +932,27 @@ static int ivtv_serialized_open(struct ivtv_stream *s, struct file *filp)
}
/* Allocate memory */
- item = kmalloc(sizeof(struct ivtv_open_id), GFP_KERNEL);
+ item = kzalloc(sizeof(struct ivtv_open_id), GFP_KERNEL);
if (NULL == item) {
IVTV_DEBUG_WARN("nomem on v4l2 open\n");
return -ENOMEM;
}
+ v4l2_fh_init(&item->fh, s->vdev);
+ if (s->type == IVTV_DEC_STREAM_TYPE_YUV ||
+ s->type == IVTV_DEC_STREAM_TYPE_MPG) {
+ res = v4l2_event_alloc(&item->fh, 60);
+ }
+ if (res < 0) {
+ v4l2_fh_exit(&item->fh);
+ kfree(item);
+ return res;
+ }
item->itv = itv;
item->type = s->type;
v4l2_prio_open(&itv->prio, &item->prio);
item->open_id = itv->open_id++;
- filp->private_data = item;
+ filp->private_data = &item->fh;
if (item->type == IVTV_ENC_STREAM_TYPE_RAD) {
/* Try to claim this stream */
@@ -940,6 +967,7 @@ static int ivtv_serialized_open(struct ivtv_stream *s, struct file *filp)
/* switching to radio while capture is
in progress is not polite */
ivtv_release_stream(s);
+ v4l2_fh_exit(&item->fh);
kfree(item);
return -EBUSY;
}
@@ -970,6 +998,7 @@ static int ivtv_serialized_open(struct ivtv_stream *s, struct file *filp)
1080 * ((itv->yuv_info.v4l2_src_h + 31) & ~31);
itv->yuv_info.stream_size = 0;
}
+ v4l2_fh_add(&item->fh);
return 0;
}