kernel/include/media/v4l2-dev.h, branch linux-4.1.y

[media] v4l2-core: remove the old .ioctl BKL replacement

2015-03-02T20:06:56Z

To keep V4L2 drivers that did not yet convert to unlocked_ioctl happy, the v4l2 core had a .ioctl file operation that took a V4L2 lock. The last drivers are now converted to unlocked_ioctl, so all this old code can now be removed. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2 core: improve debug flag handling

2014-12-23T12:31:37Z

The old debug field is renamed to dev_debug to ensure that existing drivers (including out-of-tree drivers) that try to use the old name will no longer compile. A comment has also been added that makes it explicit that drivers shouldn't use this field. Additional bits have been added to the debug flag to be more fine-grained when debugging, especially when dealing with streaming ioctls and read, write and poll. You want to enable those explicitly to prevent flooding the log when streaming unless you actually want to do that. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media: v4l2-dev.h: remove V4L2_FL_USE_FH_PRIO flag

2014-07-04T19:15:16Z

Since none of the drivers are using it, this flag can be removed. Signed-off-by: Ramakrishnan Muthukrishnan Reviewed-by: Hans Verkuil Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: add device type for Software Defined Radio

2014-03-05T17:14:59Z

Add new V4L device type VFL_TYPE_SDR for Software Defined Radio. It is registered as /dev/swradio0 (/dev/sdr0 was already reserved). Signed-off-by: Antti Palosaari Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2: always require v4l2_dev, rename parent to dev_parent

2013-06-21T14:07:12Z

The last set of drivers still using the parent field of video_device instead of the v4l2_dev field have been converted, so v4l2_dev is now always set. A proper pointer to v4l2_dev is necessary these days otherwise the advanced debugging ioctls will not work when addressing sub-devices. It also ensures that the core can always go from a video_device struct to the top-level v4l2_device struct. There is still one single use case for the parent pointer: if there are multiple busses, each being the parent of one or more video nodes, and if they all share the same v4l2_device struct. In that case one still needs a parent pointer since the v4l2_device struct can only refer to a single parent device. The cx88 driver is one such case. Unfortunately, the cx88 failed to set the parent pointer since 3.6. The next patch will correct this. In order to support this use-case the parent pointer is only renamed to dev_parent, not removed altogether. It has been renamed to ensure that the compiler will catch any (possibly out-of-tree) drivers that were missed during the conversion. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] v4l2: remove deprecated current_norm support completely

2013-06-17T12:39:53Z

The use of current_norm to keep track of the current standard has been deprecated for quite some time. Now that all drivers that were using it have been converted to use g_std we can drop it from the core. It was a bad idea to introduce this at the time: since it is a per-device node field it didn't work for drivers that create multiple nodes, all sharing the same tuner (e.g. video and vbi nodes, or a raw video node and a compressed video node). In addition it was very surprising behavior that g_std was implemented in the core. Often drivers implemented both g_std and current_norm, because they didn't understand how it should be used. Since the benefits were very limited (if they were there at all), it is better to just drop it and require that drivers just implement g_std. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-dev: add new VFL_DIR_ defines

2012-09-26T14:03:53Z

These will be used by v4l2-dev.c to improve ioctl checking. I.e. ioctls for capture should return -ENOTTY when called for an output device. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-dev: remove V4L2_FL_LOCK_ALL_FOPS

2012-08-09T23:18:16Z

All drivers that needed V4L2_FL_LOCK_ALL_FOPS have been converted, so remove this flag altogether. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-dev/ioctl.c: add vb2_queue support to video_device

2012-07-06T20:30:54Z

This prepares struct video_device for easier integration with vb2. It also introduces a new lock that protects the vb2_queue. It is up to the driver to use it or not. And the driver can associate an owner filehandle with the queue to check whether queuing requests are permitted for the calling filehandle. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-dev: rename two functions

2012-05-14T18:06:50Z

Rename the function v4l2_dont_use_lock to v4l2_disable_ioctl_locking, and rename v4l2_dont_use_cmd to v4l2_disable_ioctl. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab