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authorHans Verkuil <hans.verkuil@cisco.com>2012-09-11 11:50:37 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-02-05 18:31:33 -0200
commit770056c47fbb5c4d892d1cd55ae5ec68cf44c2b4 (patch)
tree674919c0d81c9ff58900fbc1313ea1e8ccc623cd /drivers/media
parent9f7473592bd2c8d73657dcc1644de4ab610b0d90 (diff)
[media] tm6000: add support for control events and prio handling
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/usb/tm6000/tm6000-video.c31
-rw-r--r--drivers/media/usb/tm6000/tm6000.h2
2 files changed, 25 insertions, 8 deletions
diff --git a/drivers/media/usb/tm6000/tm6000-video.c b/drivers/media/usb/tm6000/tm6000-video.c
index 4329fbcf2de2..25202a71d65e 100644
--- a/drivers/media/usb/tm6000/tm6000-video.c
+++ b/drivers/media/usb/tm6000/tm6000-video.c
@@ -34,6 +34,7 @@
#include <linux/usb.h>
#include <linux/videodev2.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
#include <media/tuner.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
@@ -1350,6 +1351,7 @@ static int __tm6000_open(struct file *file)
return -ENOMEM;
}
+ v4l2_fh_init(&fh->fh, vdev);
file->private_data = fh;
fh->dev = dev;
fh->radio = radio;
@@ -1393,6 +1395,7 @@ static int __tm6000_open(struct file *file)
tm6000_prepare_isoc(dev);
tm6000_start_thread(dev);
}
+ v4l2_fh_add(&fh->fh);
return 0;
}
@@ -1433,29 +1436,35 @@ tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
static unsigned int
__tm6000_poll(struct file *file, struct poll_table_struct *wait)
{
+ unsigned long req_events = poll_requested_events(wait);
struct tm6000_fh *fh = file->private_data;
struct tm6000_buffer *buf;
+ int res = 0;
+ if (v4l2_event_pending(&fh->fh))
+ res = POLLPRI;
+ else if (req_events & POLLPRI)
+ poll_wait(file, &fh->fh.wait, wait);
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
- return POLLERR;
+ return res | POLLERR;
if (!!is_res_streaming(fh->dev, fh))
- return POLLERR;
+ return res | POLLERR;
if (!is_res_read(fh->dev, fh)) {
/* streaming capture */
if (list_empty(&fh->vb_vidq.stream))
- return POLLERR;
+ return res | POLLERR;
buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream);
- } else {
+ } else if (req_events & (POLLIN | POLLRDNORM)) {
/* read() capture */
- return videobuf_poll_stream(file, &fh->vb_vidq, wait);
+ return res | videobuf_poll_stream(file, &fh->vb_vidq, wait);
}
poll_wait(file, &buf->vb.done, wait);
if (buf->vb.state == VIDEOBUF_DONE ||
buf->vb.state == VIDEOBUF_ERROR)
- return POLLIN | POLLRDNORM;
- return 0;
+ return res | POLLIN | POLLRDNORM;
+ return res;
}
static unsigned int tm6000_poll(struct file *file, struct poll_table_struct *wait)
@@ -1505,7 +1514,8 @@ static int tm6000_release(struct file *file)
if (!fh->radio)
videobuf_mmap_free(&fh->vb_vidq);
}
-
+ v4l2_fh_del(&fh->fh);
+ v4l2_fh_exit(&fh->fh);
kfree(fh);
mutex_unlock(&dev->lock);
@@ -1555,6 +1565,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querybuf = vidioc_querybuf,
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static struct video_device tm6000_template = {
@@ -1579,6 +1591,8 @@ static const struct v4l2_ioctl_ops radio_ioctl_ops = {
.vidioc_s_tuner = radio_s_tuner,
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static struct video_device tm6000_radio_template = {
@@ -1607,6 +1621,7 @@ static struct video_device *vdev_init(struct tm6000_core *dev,
vfd->release = video_device_release;
vfd->debug = tm6000_debug;
vfd->lock = &dev->lock;
+ set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
diff --git a/drivers/media/usb/tm6000/tm6000.h b/drivers/media/usb/tm6000/tm6000.h
index a9ac262fcc93..08bd0740dd23 100644
--- a/drivers/media/usb/tm6000/tm6000.h
+++ b/drivers/media/usb/tm6000/tm6000.h
@@ -28,6 +28,7 @@
#include <linux/mutex.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
#include <linux/dvb/frontend.h>
#include "dvb_demux.h"
@@ -290,6 +291,7 @@ struct tm6000_ops {
};
struct tm6000_fh {
+ struct v4l2_fh fh;
struct tm6000_core *dev;
unsigned int radio;

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