[media] au0828: add prio, control event and log_status support
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index afb600f..97397a6 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -35,6 +35,7 @@
#include <linux/suspend.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
#include <media/v4l2-chip-ident.h>
#include <media/tuner.h>
#include "au0828.h"
@@ -988,6 +989,7 @@
fh->type = type;
fh->dev = dev;
+ v4l2_fh_init(&fh->fh, vdev);
filp->private_data = fh;
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
@@ -1031,6 +1033,7 @@
V4L2_FIELD_SEQ_TB,
sizeof(struct au0828_buffer), fh,
&dev->lock);
+ v4l2_fh_add(&fh->fh);
return ret;
}
@@ -1040,6 +1043,8 @@
struct au0828_fh *fh = filp->private_data;
struct au0828_dev *dev = fh->dev;
+ v4l2_fh_del(&fh->fh);
+ v4l2_fh_exit(&fh->fh);
if (res_check(fh, AU0828_RESOURCE_VIDEO)) {
/* Cancel timeout thread in case they didn't call streamoff */
dev->vid_timeout_running = 0;
@@ -1061,6 +1066,7 @@
if (dev->users == 1) {
if (dev->dev_state & DEV_DISCONNECTED) {
au0828_analog_unregister(dev);
+ kfree(fh);
kfree(dev);
return 0;
}
@@ -1128,23 +1134,27 @@
{
struct au0828_fh *fh = filp->private_data;
struct au0828_dev *dev = fh->dev;
- int rc;
+ unsigned long req_events = poll_requested_events(wait);
+ unsigned int res;
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
+ if (check_dev(dev) < 0)
+ return POLLERR;
+
+ res = v4l2_ctrl_poll(filp, wait);
+ if (!(req_events & (POLLIN | POLLRDNORM)))
+ return res;
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
if (!res_get(fh, AU0828_RESOURCE_VIDEO))
return POLLERR;
- return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
- } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ return res | videobuf_poll_stream(filp, &fh->vb_vidq, wait);
+ }
+ if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
if (!res_get(fh, AU0828_RESOURCE_VBI))
return POLLERR;
- return videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
- } else {
- return POLLERR;
+ return res | videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
}
+ return POLLERR;
}
static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
@@ -1761,6 +1771,15 @@
}
#endif
+static int vidioc_log_status(struct file *file, void *fh)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ v4l2_ctrl_log_status(file, fh);
+ v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
+ return 0;
+}
+
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *rb)
{
@@ -1884,6 +1903,9 @@
.vidioc_s_register = vidioc_s_register,
#endif
.vidioc_g_chip_ident = vidioc_g_chip_ident,
+ .vidioc_log_status = vidioc_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static const struct video_device au0828_video_template = {
@@ -1980,12 +2002,14 @@
*dev->vdev = au0828_video_template;
dev->vdev->v4l2_dev = &dev->v4l2_dev;
dev->vdev->lock = &dev->lock;
+ set_bit(V4L2_FL_USE_FH_PRIO, &dev->vdev->flags);
strcpy(dev->vdev->name, "au0828a video");
/* Setup the VBI device */
*dev->vbi_dev = au0828_video_template;
dev->vbi_dev->v4l2_dev = &dev->v4l2_dev;
dev->vbi_dev->lock = &dev->lock;
+ set_bit(V4L2_FL_USE_FH_PRIO, &dev->vbi_dev->flags);
strcpy(dev->vbi_dev->name, "au0828a vbi");
/* Register the v4l2 device */