[media] hdpvr: add prio and control event support

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 12 insertions, 8 deletions

diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c
index 4bbcf480d5e7..e30ece215c87 100644
--- a/drivers/media/usb/hdpvr/hdpvr-video.c
+++ b/drivers/media/usb/hdpvr/hdpvr-video.c
@@ -24,6 +24,7 @@
 #include <media/v4l2-dev.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
 #include "hdpvr.h"
 
 #define BULK_URB_TIMEOUT   90 /* 0.09 seconds */
@@ -479,16 +480,15 @@ err:
 
 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
 {
+        unsigned long req_events = poll_requested_events(wait);
         struct hdpvr_buffer *buf = NULL;
         struct hdpvr_device *dev = video_drvdata(filp);
-        unsigned int mask = 0;
+        unsigned int mask = v4l2_ctrl_poll(filp, wait);
 
-        mutex_lock(&dev->io_mutex);
+        if (!(req_events & (POLLIN | POLLRDNORM)))
+                return mask;
 
-        if (!video_is_registered(dev->video_dev)) {
-                mutex_unlock(&dev->io_mutex);
-                return -EIO;
-        }
+        mutex_lock(&dev->io_mutex);
 
         if (dev->status == STATUS_IDLE) {
                 if (hdpvr_start_streaming(dev)) {
@@ -880,10 +880,13 @@ static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
         .vidioc_enumaudio       = vidioc_enumaudio,
         .vidioc_g_audio         = vidioc_g_audio,
         .vidioc_s_audio         = vidioc_s_audio,
-        .vidioc_enum_fmt_vid_cap        = vidioc_enum_fmt_vid_cap,
-        .vidioc_g_fmt_vid_cap           = vidioc_g_fmt_vid_cap,
+        .vidioc_enum_fmt_vid_cap= vidioc_enum_fmt_vid_cap,
+        .vidioc_g_fmt_vid_cap   = vidioc_g_fmt_vid_cap,
         .vidioc_encoder_cmd     = vidioc_encoder_cmd,
         .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
+        .vidioc_log_status      = v4l2_ctrl_log_status,
+        .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+        .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };
 
 static void hdpvr_device_release(struct video_device *vdev)
@@ -1008,6 +1011,7 @@ int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
         strcpy(dev->video_dev->name, "Hauppauge HD PVR");
         dev->video_dev->v4l2_dev = &dev->v4l2_dev;
         video_set_drvdata(dev->video_dev, dev);
+        set_bit(V4L2_FL_USE_FH_PRIO, &dev->video_dev->flags);
 
         res = video_register_device(dev->video_dev, VFL_TYPE_GRABBER, devnum);
         if (res < 0) {