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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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[media] s2255: 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>
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@ -43,13 +43,14 @@
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include <linux/mm.h>
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#include <linux/vmalloc.h>
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#include <linux/usb.h>
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#include <media/videobuf-vmalloc.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-ctrls.h>
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#include <linux/vmalloc.h>
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#include <linux/usb.h>
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#include <media/v4l2-event.h>
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#define S2255_VERSION "1.22.1"
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#define FIRMWARE_FILE_NAME "f2255usb.bin"
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@ -295,6 +296,8 @@ struct s2255_buffer {
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};
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struct s2255_fh {
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/* this must be the first field in this struct */
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struct v4l2_fh fh;
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struct s2255_dev *dev;
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struct videobuf_queue vb_vidq;
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enum v4l2_buf_type type;
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@ -1666,7 +1669,9 @@ static int __s2255_open(struct file *file)
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fh = kzalloc(sizeof(*fh), GFP_KERNEL);
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if (NULL == fh)
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return -ENOMEM;
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file->private_data = fh;
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v4l2_fh_init(&fh->fh, vdev);
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v4l2_fh_add(&fh->fh);
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file->private_data = &fh->fh;
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fh->dev = dev;
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fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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fh->channel = channel;
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@ -1709,12 +1714,13 @@ static unsigned int s2255_poll(struct file *file,
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{
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struct s2255_fh *fh = file->private_data;
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struct s2255_dev *dev = fh->dev;
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int rc;
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int rc = v4l2_ctrl_poll(file, wait);
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dprintk(100, "%s\n", __func__);
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if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
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return POLLERR;
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mutex_lock(&dev->lock);
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rc = videobuf_poll_stream(file, &fh->vb_vidq, wait);
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rc |= videobuf_poll_stream(file, &fh->vb_vidq, wait);
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mutex_unlock(&dev->lock);
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return rc;
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}
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@ -1761,6 +1767,8 @@ static int s2255_release(struct file *file)
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videobuf_mmap_free(&fh->vb_vidq);
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mutex_unlock(&dev->lock);
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dprintk(1, "%s (dev=%s)\n", __func__, video_device_node_name(vdev));
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v4l2_fh_del(&fh->fh);
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v4l2_fh_exit(&fh->fh);
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kfree(fh);
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return 0;
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}
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@ -1815,6 +1823,9 @@ static const struct v4l2_ioctl_ops s2255_ioctl_ops = {
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.vidioc_s_parm = vidioc_s_parm,
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.vidioc_g_parm = vidioc_g_parm,
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.vidioc_enum_frameintervals = vidioc_enum_frameintervals,
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.vidioc_log_status = v4l2_ctrl_log_status,
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.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
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.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
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};
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static void s2255_video_device_release(struct video_device *vdev)
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@ -1898,6 +1909,7 @@ static int s2255_probe_v4l(struct s2255_dev *dev)
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channel->vdev.ctrl_handler = &channel->hdl;
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channel->vdev.lock = &dev->lock;
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channel->vdev.v4l2_dev = &dev->v4l2_dev;
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set_bit(V4L2_FL_USE_FH_PRIO, &channel->vdev.flags);
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video_set_drvdata(&channel->vdev, channel);
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if (video_nr == -1)
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ret = video_register_device(&channel->vdev,
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