kernel/include/media/v4l2-device.h, branch linux-5.2.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30T18:26:35Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman

media: v4l2-device.h: add v4l2_device_supports_requests() helper

2018-08-31T15:07:26Z

Add a simple helper function that tests if the driver supports the request API. Signed-off-by: Hans Verkuil Reviewed-by: Mauro Carvalho Chehab Signed-off-by: Mauro Carvalho Chehab

media: v4l2-device.h: always expose mdev

2018-05-11T15:26:56Z

The mdev field is only present if CONFIG_MEDIA_CONTROLLER is set. But since we will need to pass the media_device to vb2 and the control framework it is very convenient to just make this field available all the time. If CONFIG_MEDIA_CONTROLLER is not set, then it will just be NULL. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-device.h: document helper macros

2017-12-29T12:11:22Z

There are several macros that aren't documented using kernel-docs markups. Document them. While here, add cross-references to structs on this file. Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-device.h: fix some doc tags

2016-09-09T12:41:12Z

Fix some minor issues at the documentation tags on this file, adding cross-references where needed, and fixing some broken ones. While here, fix a few spaces before tabs to make Checkpatch happier. Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-device.h: document functions

2016-07-23T11:03:24Z

The functions at v4l2-device.h are not using the proper markups. Add it, and include at the v4l2-core.rst. Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-device.h: add v4l2_device_mask_ variants

2016-04-20T19:08:42Z

The v4l2_device_call_* defines filter subdevs based on the grp_id value. But some drivers use a bitmask, so instead of filtering by grp_id == value, you want to filter by grp_id & value. Make variants of these defines to do this. The 'has_op' define has been extended to have a grp_id argument as well, and a mask variant has been added. This extra argument required a change to go7007. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[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-subdev.h: fix sparse error with v4l2_subdev_notify

2014-04-16T21:13:56Z

The notify function is a void function, yet the v4l2_subdev_notify define uses it in a ? : construction, which causes sparse warnings. Replace the define by a static inline function and move it to v4l2-device.h, which is where it belongs since it needs to know the v4l2_device struct. This wasn't a problem when it was a define, but as a static inline function this no longer compiles in v4l2-subdev.h. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-core: add code to check for specific ops

2013-03-24T14:59:02Z

This patch adds a v4l2_subdev_has_op() macro and a v4l2_device_has_op macro to quickly check if a specific subdev or any subdev supports a particular subdev operation. This makes it easy for drivers to disable certain ioctls if none of the subdevs supports the necessary functionality. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab