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[media] saa7164: add support for control events 

Now that saa7164 uses v4l2_fh and that poll() has been fixed, it is
trivial to add support for control events.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-08-28 08:48:29 -03:00 committed by Mauro Carvalho Chehab
parent 45053edc05
commit 245b5ae95f
2 changed files with 7 additions and 2 deletions
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8
drivers/media/pci/saa7164/saa7164-encoder.c
View File

@ -919,7 +919,7 @@ static unsigned int fops_poll(struct file *file, poll_table *wait)
struct saa7164_encoder_fh *fh =
(struct saa7164_encoder_fh *)file->private_data;
struct saa7164_port *port = fh->port;
unsigned int mask = 0;
unsigned int mask = v4l2_ctrl_poll(file, wait);
port->last_poll_msecs_diff = port->last_poll_msecs;
port->last_poll_msecs = jiffies_to_msecs(jiffies);
@ -935,7 +935,7 @@ static unsigned int fops_poll(struct file *file, poll_table *wait)
if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
if (atomic_inc_return(&port->v4l_reader_count) == 1) {
if (saa7164_encoder_initialize(port) < 0)
return POLLERR;
return mask | POLLERR;
saa7164_encoder_start_streaming(port);
msleep(200);
}
@ -976,6 +976,10 @@ static const struct v4l2_ioctl_ops mpeg_ioctl_ops = {
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static struct video_device saa7164_mpeg_template = {

1
drivers/media/pci/saa7164/saa7164.h
View File

@ -65,6 +65,7 @@
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
#include "saa7164-reg.h"
#include "saa7164-types.h"