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path: root/drivers/media/usb/cx231xx/cx231xx-video.c
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Diffstat (limited to 'drivers/media/usb/cx231xx/cx231xx-video.c')
-rw-r--r--drivers/media/usb/cx231xx/cx231xx-video.c176
1 files changed, 114 insertions, 62 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index ecea76fe07f6..c261e160c158 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -100,6 +100,75 @@ static struct cx231xx_fmt format[] = {
};
+static int cx231xx_enable_analog_tuner(struct cx231xx *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+ struct media_device *mdev = dev->media_dev;
+ struct media_entity *entity, *decoder = NULL, *source;
+ struct media_link *link, *found_link = NULL;
+ int i, ret, active_links = 0;
+
+ if (!mdev)
+ return 0;
+
+ /*
+ * This will find the tuner that is connected into the decoder.
+ * Technically, this is not 100% correct, as the device may be
+ * using an analog input instead of the tuner. However, as we can't
+ * do DVB streaming while the DMA engine is being used for V4L2,
+ * this should be enough for the actual needs.
+ */
+ media_device_for_each_entity(entity, mdev) {
+ if (entity->type == MEDIA_ENT_T_V4L2_SUBDEV_DECODER) {
+ decoder = entity;
+ break;
+ }
+ }
+ if (!decoder)
+ return 0;
+
+ for (i = 0; i < decoder->num_links; i++) {
+ link = &decoder->links[i];
+ if (link->sink->entity == decoder) {
+ found_link = link;
+ if (link->flags & MEDIA_LNK_FL_ENABLED)
+ active_links++;
+ break;
+ }
+ }
+
+ if (active_links == 1 || !found_link)
+ return 0;
+
+ source = found_link->source->entity;
+ for (i = 0; i < source->num_links; i++) {
+ struct media_entity *sink;
+ int flags = 0;
+
+ link = &source->links[i];
+ sink = link->sink->entity;
+
+ if (sink == entity)
+ flags = MEDIA_LNK_FL_ENABLED;
+
+ ret = media_entity_setup_link(link, flags);
+ if (ret) {
+ dev_err(dev->dev,
+ "Couldn't change link %s->%s to %s. Error %d\n",
+ source->name, sink->name,
+ flags ? "enabled" : "disabled",
+ ret);
+ return ret;
+ } else
+ dev_dbg(dev->dev,
+ "link %s->%s was %s\n",
+ source->name, sink->name,
+ flags ? "ENABLED" : "disabled");
+ }
+#endif
+ return 0;
+}
+
/* ------------------------------------------------------------------
Video buffer and parser functions
------------------------------------------------------------------*/
@@ -667,6 +736,9 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
if (*count < CX231XX_MIN_BUF)
*count = CX231XX_MIN_BUF;
+
+ cx231xx_enable_analog_tuner(dev);
+
return 0;
}
@@ -756,6 +828,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
}
buf->vb.state = VIDEOBUF_PREPARED;
+
return 0;
fail:
@@ -1056,7 +1129,7 @@ int cx231xx_enum_input(struct file *file, void *priv,
(CX231XX_VMUX_CABLE == INPUT(n)->type))
i->type = V4L2_INPUT_TYPE_TUNER;
- i->std = dev->vdev->tvnorms;
+ i->std = dev->vdev.tvnorms;
/* If they are asking about the active input, read signal status */
if (n == dev->video_input) {
@@ -1451,7 +1524,7 @@ int cx231xx_querycap(struct file *file, void *priv,
cap->capabilities = cap->device_caps | V4L2_CAP_READWRITE |
V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
- if (dev->radio_dev)
+ if (video_is_registered(&dev->radio_dev))
cap->capabilities |= V4L2_CAP_RADIO;
return 0;
@@ -1729,34 +1802,21 @@ void cx231xx_release_analog_resources(struct cx231xx *dev)
/*FIXME: I2C IR should be disconnected */
- if (dev->radio_dev) {
- if (video_is_registered(dev->radio_dev))
- video_unregister_device(dev->radio_dev);
- else
- video_device_release(dev->radio_dev);
- dev->radio_dev = NULL;
- }
- if (dev->vbi_dev) {
+ if (video_is_registered(&dev->radio_dev))
+ video_unregister_device(&dev->radio_dev);
+ if (video_is_registered(&dev->vbi_dev)) {
dev_info(dev->dev, "V4L2 device %s deregistered\n",
- video_device_node_name(dev->vbi_dev));
- if (video_is_registered(dev->vbi_dev))
- video_unregister_device(dev->vbi_dev);
- else
- video_device_release(dev->vbi_dev);
- dev->vbi_dev = NULL;
+ video_device_node_name(&dev->vbi_dev));
+ video_unregister_device(&dev->vbi_dev);
}
- if (dev->vdev) {
+ if (video_is_registered(&dev->vdev)) {
dev_info(dev->dev, "V4L2 device %s deregistered\n",
- video_device_node_name(dev->vdev));
+ video_device_node_name(&dev->vdev));
if (dev->board.has_417)
cx231xx_417_unregister(dev);
- if (video_is_registered(dev->vdev))
- video_unregister_device(dev->vdev);
- else
- video_device_release(dev->vdev);
- dev->vdev = NULL;
+ video_unregister_device(&dev->vdev);
}
v4l2_ctrl_handler_free(&dev->ctrl_handler);
v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
@@ -2013,7 +2073,7 @@ static struct video_device cx231xx_vbi_template;
static const struct video_device cx231xx_video_template = {
.fops = &cx231xx_v4l_fops,
- .release = video_device_release,
+ .release = video_device_release_empty,
.ioctl_ops = &video_ioctl_ops,
.tvnorms = V4L2_STD_ALL,
};
@@ -2049,19 +2109,14 @@ static struct video_device cx231xx_radio_template = {
/******************************** usb interface ******************************/
-static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
- const struct video_device
- *template, const char *type_name)
+static void cx231xx_vdev_init(struct cx231xx *dev,
+ struct video_device *vfd,
+ const struct video_device *template,
+ const char *type_name)
{
- struct video_device *vfd;
-
- vfd = video_device_alloc();
- if (NULL == vfd)
- return NULL;
-
*vfd = *template;
vfd->v4l2_dev = &dev->v4l2_dev;
- vfd->release = video_device_release;
+ vfd->release = video_device_release_empty;
vfd->lock = &dev->lock;
snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name);
@@ -2073,7 +2128,6 @@ static struct video_device *cx231xx_vdev_init(struct cx231xx *dev,
v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
}
- return vfd;
}
int cx231xx_register_analog_devices(struct cx231xx *dev)
@@ -2116,15 +2170,16 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
/* write code here... */
/* allocate and fill video video_device struct */
- dev->vdev = cx231xx_vdev_init(dev, &cx231xx_video_template, "video");
- if (!dev->vdev) {
- dev_err(dev->dev, "cannot allocate video_device.\n");
- return -ENODEV;
- }
-
- dev->vdev->ctrl_handler = &dev->ctrl_handler;
+ cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video");
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ dev->video_pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_init(&dev->vdev.entity, 1, &dev->video_pad, 0);
+ if (ret < 0)
+ dev_err(dev->dev, "failed to initialize video media entity!\n");
+#endif
+ dev->vdev.ctrl_handler = &dev->ctrl_handler;
/* register v4l2 video video_device */
- ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
+ ret = video_register_device(&dev->vdev, VFL_TYPE_GRABBER,
video_nr[dev->devno]);
if (ret) {
dev_err(dev->dev,
@@ -2134,22 +2189,24 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
}
dev_info(dev->dev, "Registered video device %s [v4l2]\n",
- video_device_node_name(dev->vdev));
+ video_device_node_name(&dev->vdev));
/* Initialize VBI template */
cx231xx_vbi_template = cx231xx_video_template;
strcpy(cx231xx_vbi_template.name, "cx231xx-vbi");
/* Allocate and fill vbi video_device struct */
- dev->vbi_dev = cx231xx_vdev_init(dev, &cx231xx_vbi_template, "vbi");
+ cx231xx_vdev_init(dev, &dev->vbi_dev, &cx231xx_vbi_template, "vbi");
- if (!dev->vbi_dev) {
- dev_err(dev->dev, "cannot allocate video_device.\n");
- return -ENODEV;
- }
- dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad, 0);
+ if (ret < 0)
+ dev_err(dev->dev, "failed to initialize vbi media entity!\n");
+#endif
+ dev->vbi_dev.ctrl_handler = &dev->ctrl_handler;
/* register v4l2 vbi video_device */
- ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
+ ret = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->devno]);
if (ret < 0) {
dev_err(dev->dev, "unable to register vbi device\n");
@@ -2157,18 +2214,13 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
}
dev_info(dev->dev, "Registered VBI device %s\n",
- video_device_node_name(dev->vbi_dev));
+ video_device_node_name(&dev->vbi_dev));
if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) {
- dev->radio_dev = cx231xx_vdev_init(dev, &cx231xx_radio_template,
- "radio");
- if (!dev->radio_dev) {
- dev_err(dev->dev,
- "cannot allocate video_device.\n");
- return -ENODEV;
- }
- dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
- ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
+ cx231xx_vdev_init(dev, &dev->radio_dev,
+ &cx231xx_radio_template, "radio");
+ dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler;
+ ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO,
radio_nr[dev->devno]);
if (ret < 0) {
dev_err(dev->dev,
@@ -2176,7 +2228,7 @@ int cx231xx_register_analog_devices(struct cx231xx *dev)
return ret;
}
dev_info(dev->dev, "Registered radio device as %s\n",
- video_device_node_name(dev->radio_dev));
+ video_device_node_name(&dev->radio_dev));
}
return 0;
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-20 01:38:50 +0300