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path: root/drivers/media/platform/vimc/vimc-capture.c
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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner2019-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 3 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: vimc: propagate pixel format in the streamHelen Fornazier2019-04-22
| | | | | | | | | | | | | | | | | | Media bus codes were being mapped to pixelformats, which causes a limitation on vimc because not all pixelformats can be mapped to media bus codes. Also, media bus codes are an internal configuration from the device. Userspace only assures media bus codes matches between pads and expects the image in a given pixelformat. So we can allow almost any media bus format to be configured between pads, except for debayer that expects a media bus code of type bayer in the sink pad. [hverkuil-cisco@xs4all.nl: drop use of v4l2_get_fourcc_name: not yet available] [hverkuil-cisco@xs4all.nl: made vimc_mbus_list static] Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: cap: fix step width/height in enum framesizeHelen Fornazier2019-03-19
| | | | | | | | | | | | The type V4L2_FRMSIZE_TYPE_CONTINUOUS expects a step of 1. This fixes v4l2-compliance test error: fail: v4l2-test-formats.cpp(184): invalid step_width/height for continuous framesize test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: free vimc_cap_device when the last user disappearsHans Verkuil2019-03-19
| | | | | | | | | | | Don't free vimc_cap_device immediately, instead do this in the video_device release function which is called when the last user closes the video device. Only then is it safe to free the memory. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: add USERPTR supportHans Verkuil2019-02-18
| | | | | | | | Add VB2_USERPTR to the vimc capture device. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: fill in bus_info in media_device_infoHans Verkuil2019-02-07
| | | | | | | | | | | It is good practice to fill in bus_info. Also just use 'platform:vimc' when filling in the bus_info in querycap: the bus_info has nothing to do with the video device name. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: Add vimc-streamer for stream controlLucas A. M. Magalhães2019-02-07
| | | | | | | | | | | | | | | | | Add a linear pipeline logic for the stream control. It's created by walking backwards on the entity graph. When the stream starts it will simply loop through the pipeline calling the respective process_frame function of each entity. Fixes: f2fe89061d797 ("vimc: Virtual Media Controller core, capture and sensor") Cc: stable@vger.kernel.org # for v4.20 Signed-off-by: Lucas A. M. Magalhães <lucmaga@gmail.com> Acked-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fixed small space-after-tab issue in the patch] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: fill in correct driver name in querycapHans Verkuil2019-01-21
| | | | | | | | | The driver name as returned in v4l2_capabilities must be vimc, not vimc_capture. Fix this. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: use strscpy() instead of strlcpy()Mauro Carvalho Chehab2018-09-11
| | | | | | | | | | | The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* headers: separate linux/mod_devicetable.h from linux/platform_device.hRandy Dunlap2018-07-07
| | | | | | | | | | | | | | | | | | | | | | | | At over 4000 #includes, <linux/platform_device.h> is the 9th most #included header file in the Linux kernel. It does not need <linux/mod_devicetable.h>, so drop that header and explicitly add <linux/mod_devicetable.h> to source files that need it. 4146 #include <linux/platform_device.h> After this patch, there are 225 files that use <linux/mod_devicetable.h>, for a reduction of around 3900 times that <linux/mod_devicetable.h> does not have to be read & parsed. 225 #include <linux/mod_devicetable.h> This patch was build-tested on 20 different arch-es. It also makes these drivers SubmitChecklist#1 compliant. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kbuild test robot <lkp@intel.com> # drivers/media/platform/vimc/ Reported-by: kbuild test robot <lkp@intel.com> # drivers/pinctrl/pinctrl-u300.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: vimc: set id_table for platform driversJavier Martinez Canillas2017-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vimc platform drivers define a platform device ID table but these are not set to the .id_table field in the platform driver structure. So the platform device ID table is only used to fill the aliases in the module but are not used for matching (works because the platform subsystem fallbacks to the driver's name if no .id_table is set). But this also means that the platform device ID table isn't used if the driver is built-in, which leads to the following build warning: This causes the following build warnings when the driver is built-in: drivers/media/platform/vimc//vimc-capture.c:528:40: warning: ‘vimc_cap_driver_ids’ defined but not used [-Wunused-const-variable=] static const struct platform_device_id vimc_cap_driver_ids[] = { ^~~~~~~~~~~~~~~~~~~ drivers/media/platform/vimc//vimc-debayer.c:588:40: warning: ‘vimc_deb_driver_ids’ defined but not used [-Wunused-const-variable=] static const struct platform_device_id vimc_deb_driver_ids[] = { ^~~~~~~~~~~~~~~~~~~ drivers/media/platform/vimc//vimc-scaler.c:442:40: warning: ‘vimc_sca_driver_ids’ defined but not used [-Wunused-const-variable=] static const struct platform_device_id vimc_sca_driver_ids[] = { ^~~~~~~~~~~~~~~~~~~ drivers/media/platform/vimc//vimc-sensor.c:376:40: warning: ‘vimc_sen_driver_ids’ defined but not used [-Wunused-const-variable=] static const struct platform_device_id vimc_sen_driver_ids[] = { ^~~~~~~~~~~~~~~~~~~ Reported-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Suggested-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Helen Koike <helen.koike@collabora.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] vimc: Subdevices as modulesHelen Fornazier2017-06-23
| | | | | | | | | | | | | | | | | | | | | Change the core structure for adding subdevices in the topology. Instead of calling the specific create function for each subdevice, inject a child platform_device with the driver's name. Each type of node in the topology (sensor, capture, debayer, scaler) will register a platform_driver with the corresponding name through the component subsystem. Implementing a new subdevice type doesn't require vimc-core to be altered. This facilitates future implementation of dynamic entities, where hotpluging an entity in the topology is just a matter of registering/unregistering a platform_device in the system. It also facilitates other implementations of different nodes without touching the core code and remove the need of a header file for each type of node. Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] vimc: cap: Support several image formatsHelen Fornazier2017-06-23
| | | | | | | | | | Allow user space to change the image format as the frame size, the pixel format, colorspace, quantization, field YCbCr encoding and the transfer function Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] vimc: common: Add vimc_link_validateHelen Fornazier2017-06-23
| | | | | | | | | All links will be checked in the same way. Adding a helper function for that Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] vimc: common: Add vimc_pipeline_s_stream helperHelen Fornazier2017-06-23
| | | | | | | | | | Move the vimc_cap_pipeline_s_stream from the vimc-cap.c to vimc-common.c as this core will be reused by other subdevices to activate the stream in their directly connected nodes Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] vimc: Virtual Media Controller core, capture and sensorHelen Koike2017-04-14
First version of the Virtual Media Controller. Add a simple version of the core of the driver, the capture and sensor nodes in the topology, generating a grey image in a hardcoded format. Signed-off-by: Helen Koike <helen.koike@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: fix small typo in Kconfig] Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>