diff options
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-ioctl.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-ioctl.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index 6422cf8f189..e95ebdeaa72 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -35,6 +35,7 @@ #include <media/saa7127.h> #include <media/tveeprom.h> #include <media/v4l2-chip-ident.h> +#include <media/v4l2-event.h> #include <linux/dvb/audio.h> #include <linux/i2c-id.h> @@ -1452,6 +1453,18 @@ static int ivtv_overlay(struct file *file, void *fh, unsigned int on) return 0; } +static int ivtv_subscribe_event(struct v4l2_fh *fh, struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_VSYNC: + case V4L2_EVENT_EOS: + break; + default: + return -EINVAL; + } + return v4l2_event_subscribe(fh, sub); +} + static int ivtv_log_status(struct file *file, void *fh) { struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; @@ -1560,7 +1573,7 @@ static int ivtv_log_status(struct file *file, void *fh) static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg) { - struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data; + struct ivtv_open_id *id = fh2id(filp->private_data); struct ivtv *itv = id->itv; int nonblocking = filp->f_flags & O_NONBLOCK; struct ivtv_stream *s = &itv->streams[id->type]; @@ -1820,7 +1833,7 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp, unsigned int cmd, unsigned long arg) { struct video_device *vfd = video_devdata(filp); - struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data; + struct ivtv_open_id *id = fh2id(filp->private_data); long ret; /* check priority */ @@ -1852,10 +1865,13 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp, long ivtv_v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data; + struct ivtv_open_id *id = fh2id(filp->private_data); struct ivtv *itv = id->itv; long res; + /* DQEVENT can block, so this should not run with the serialize lock */ + if (cmd == VIDIOC_DQEVENT) + return ivtv_serialized_ioctl(itv, filp, cmd, arg); mutex_lock(&itv->serialize_lock); res = ivtv_serialized_ioctl(itv, filp, cmd, arg); mutex_unlock(&itv->serialize_lock); @@ -1926,6 +1942,8 @@ static const struct v4l2_ioctl_ops ivtv_ioctl_ops = { .vidioc_g_ext_ctrls = ivtv_g_ext_ctrls, .vidioc_s_ext_ctrls = ivtv_s_ext_ctrls, .vidioc_try_ext_ctrls = ivtv_try_ext_ctrls, + .vidioc_subscribe_event = ivtv_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; void ivtv_set_funcs(struct video_device *vdev) |