in test-drivers/vivid/vivid-core.c [1379:1720]
static int vivid_create_devnodes(struct platform_device *pdev,
struct vivid_dev *dev, int inst,
unsigned int cec_tx_bus_cnt,
v4l2_std_id tvnorms_cap,
v4l2_std_id tvnorms_out,
unsigned in_type_counter[4],
unsigned out_type_counter[4])
{
struct video_device *vfd;
int ret;
if (dev->has_vid_cap) {
vfd = &dev->vid_cap_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-vid-cap", inst);
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->vid_cap_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_vid_cap_q;
vfd->tvnorms = tvnorms_cap;
/*
* Provide a mutex to v4l2 core. It will be used to protect
* all fops and v4l2 ioctls.
*/
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->vid_cap_pad.flags = MEDIA_PAD_FL_SINK;
ret = media_entity_pads_init(&vfd->entity, 1, &dev->vid_cap_pad);
if (ret)
return ret;
#endif
#ifdef CONFIG_VIDEO_VIVID_CEC
if (in_type_counter[HDMI]) {
ret = cec_register_adapter(dev->cec_rx_adap, &pdev->dev);
if (ret < 0) {
cec_delete_adapter(dev->cec_rx_adap);
dev->cec_rx_adap = NULL;
return ret;
}
cec_s_phys_addr(dev->cec_rx_adap, 0, false);
v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI input 0\n",
dev_name(&dev->cec_rx_adap->devnode.dev));
}
#endif
ret = video_register_device(vfd, VFL_TYPE_VIDEO, vid_cap_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_vid_out) {
#ifdef CONFIG_VIDEO_VIVID_CEC
int i;
#endif
vfd = &dev->vid_out_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-vid-out", inst);
vfd->vfl_dir = VFL_DIR_TX;
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->vid_out_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_vid_out_q;
vfd->tvnorms = tvnorms_out;
/*
* Provide a mutex to v4l2 core. It will be used to protect
* all fops and v4l2 ioctls.
*/
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->vid_out_pad.flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_pads_init(&vfd->entity, 1, &dev->vid_out_pad);
if (ret)
return ret;
#endif
#ifdef CONFIG_VIDEO_VIVID_CEC
for (i = 0; i < cec_tx_bus_cnt; i++) {
ret = cec_register_adapter(dev->cec_tx_adap[i], &pdev->dev);
if (ret < 0) {
for (; i < cec_tx_bus_cnt; i++) {
cec_delete_adapter(dev->cec_tx_adap[i]);
dev->cec_tx_adap[i] = NULL;
}
return ret;
}
v4l2_info(&dev->v4l2_dev, "CEC adapter %s registered for HDMI output %d\n",
dev_name(&dev->cec_tx_adap[i]->devnode.dev), i);
if (i < out_type_counter[HDMI])
cec_s_phys_addr(dev->cec_tx_adap[i], (i + 1) << 12, false);
else
cec_s_phys_addr(dev->cec_tx_adap[i], 0x1000, false);
}
#endif
ret = video_register_device(vfd, VFL_TYPE_VIDEO, vid_out_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 output device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_vbi_cap) {
vfd = &dev->vbi_cap_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-vbi-cap", inst);
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->vbi_cap_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_vbi_cap_q;
vfd->lock = &dev->mutex;
vfd->tvnorms = tvnorms_cap;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->vbi_cap_pad.flags = MEDIA_PAD_FL_SINK;
ret = media_entity_pads_init(&vfd->entity, 1, &dev->vbi_cap_pad);
if (ret)
return ret;
#endif
ret = video_register_device(vfd, VFL_TYPE_VBI, vbi_cap_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s, supports %s VBI\n",
video_device_node_name(vfd),
(dev->has_raw_vbi_cap && dev->has_sliced_vbi_cap) ?
"raw and sliced" :
(dev->has_raw_vbi_cap ? "raw" : "sliced"));
}
if (dev->has_vbi_out) {
vfd = &dev->vbi_out_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-vbi-out", inst);
vfd->vfl_dir = VFL_DIR_TX;
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->vbi_out_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_vbi_out_q;
vfd->lock = &dev->mutex;
vfd->tvnorms = tvnorms_out;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->vbi_out_pad.flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_pads_init(&vfd->entity, 1, &dev->vbi_out_pad);
if (ret)
return ret;
#endif
ret = video_register_device(vfd, VFL_TYPE_VBI, vbi_out_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 output device registered as %s, supports %s VBI\n",
video_device_node_name(vfd),
(dev->has_raw_vbi_out && dev->has_sliced_vbi_out) ?
"raw and sliced" :
(dev->has_raw_vbi_out ? "raw" : "sliced"));
}
if (dev->has_sdr_cap) {
vfd = &dev->sdr_cap_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-sdr-cap", inst);
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->sdr_cap_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_sdr_cap_q;
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->sdr_cap_pad.flags = MEDIA_PAD_FL_SINK;
ret = media_entity_pads_init(&vfd->entity, 1, &dev->sdr_cap_pad);
if (ret)
return ret;
#endif
ret = video_register_device(vfd, VFL_TYPE_SDR, sdr_cap_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 capture device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_radio_rx) {
vfd = &dev->radio_rx_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-rad-rx", inst);
vfd->fops = &vivid_radio_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->radio_rx_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, dev);
ret = video_register_device(vfd, VFL_TYPE_RADIO, radio_rx_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 receiver device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_radio_tx) {
vfd = &dev->radio_tx_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-rad-tx", inst);
vfd->vfl_dir = VFL_DIR_TX;
vfd->fops = &vivid_radio_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->radio_tx_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, dev);
ret = video_register_device(vfd, VFL_TYPE_RADIO, radio_tx_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev, "V4L2 transmitter device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_meta_cap) {
vfd = &dev->meta_cap_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-meta-cap", inst);
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->meta_cap_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_meta_cap_q;
vfd->lock = &dev->mutex;
vfd->tvnorms = tvnorms_cap;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->meta_cap_pad.flags = MEDIA_PAD_FL_SINK;
ret = media_entity_pads_init(&vfd->entity, 1,
&dev->meta_cap_pad);
if (ret)
return ret;
#endif
ret = video_register_device(vfd, VFL_TYPE_VIDEO,
meta_cap_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev,
"V4L2 metadata capture device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_meta_out) {
vfd = &dev->meta_out_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-meta-out", inst);
vfd->vfl_dir = VFL_DIR_TX;
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->meta_out_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_meta_out_q;
vfd->lock = &dev->mutex;
vfd->tvnorms = tvnorms_out;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->meta_out_pad.flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_pads_init(&vfd->entity, 1,
&dev->meta_out_pad);
if (ret)
return ret;
#endif
ret = video_register_device(vfd, VFL_TYPE_VIDEO,
meta_out_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev,
"V4L2 metadata output device registered as %s\n",
video_device_node_name(vfd));
}
if (dev->has_touch_cap) {
vfd = &dev->touch_cap_dev;
snprintf(vfd->name, sizeof(vfd->name),
"vivid-%03d-touch-cap", inst);
vfd->fops = &vivid_fops;
vfd->ioctl_ops = &vivid_ioctl_ops;
vfd->device_caps = dev->touch_cap_caps;
vfd->release = video_device_release_empty;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = &dev->vb_touch_cap_q;
vfd->tvnorms = tvnorms_cap;
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, dev);
#ifdef CONFIG_MEDIA_CONTROLLER
dev->touch_cap_pad.flags = MEDIA_PAD_FL_SINK;
ret = media_entity_pads_init(&vfd->entity, 1,
&dev->touch_cap_pad);
if (ret)
return ret;
#endif
ret = video_register_device(vfd, VFL_TYPE_TOUCH,
touch_cap_nr[inst]);
if (ret < 0)
return ret;
v4l2_info(&dev->v4l2_dev,
"V4L2 touch capture device registered as %s\n",
video_device_node_name(vfd));
}
#ifdef CONFIG_MEDIA_CONTROLLER
/* Register the media device */
ret = media_device_register(&dev->mdev);
if (ret) {
dev_err(dev->mdev.dev,
"media device register failed (err=%d)\n", ret);
return ret;
}
#endif
return 0;
}