- 14 Apr, 2020 40 commits
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Mauro Carvalho Chehab authored
There are several markups there that doesn't follow the specs. Fields should be like: @foo: with a collon at the end. Also, continuation lines should be aligned. Failing to do that would cause kernel-doc to parse it wrong. Some of the troubles will even cause warnings: $ ./scripts/kernel-doc -none drivers/media/test_drivers/vimc/vimc-common.h drivers/media/test_drivers/vimc/vimc-common.h:59: error: Cannot parse struct or union! drivers/media/test_drivers/vimc/vimc-common.h:77: warning: Function parameter or member 'bpp' not described in 'vimc_pix_map' drivers/media/test_drivers/vimc/vimc-common.h:120: warning: Function parameter or member 'pipe_cfg' not described in 'vimc_device' drivers/media/test_drivers/vimc/vimc-common.h:120: warning: Function parameter or member 'ent_devs' not described in 'vimc_device' drivers/media/test_drivers/vimc/vimc-common.h:120: warning: Function parameter or member 'mdev' not described in 'vimc_device' drivers/media/test_drivers/vimc/vimc-common.h:120: warning: Function parameter or member 'v4l2_dev' not described in 'vimc_device' drivers/media/test_drivers/vimc/vimc-common.h:137: warning: Function parameter or member 'add' not described in 'vimc_ent_type' drivers/media/test_drivers/vimc/vimc-common.h:137: warning: Function parameter or member 'unregister' not described in 'vimc_ent_type' drivers/media/test_drivers/vimc/vimc-common.h:137: warning: Function parameter or member 'release' not described in 'vimc_ent_type' drivers/media/test_drivers/vimc/vimc-common.h:150: warning: Function parameter or member 'name' not described in 'vimc_ent_config' drivers/media/test_drivers/vimc/vimc-common.h:150: warning: Function parameter or member 'type' not described in 'vimc_ent_config' drivers/media/test_drivers/vimc/vimc-common.h:197: warning: bad line: flags of the pads Signed-off-by:Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Ezequiel Garcia authored
This spinlock is used solely to call v4l2_m2m_buf_done(). Since buffers are obtained only after being removed from the ready queue, there's no concurrent access, and so no need for synchronization. Remove the spinlock to make sure no one copies this pattern. Some archaeology shows this is a small leftover from ancient code. This driver (then called m2m_testdev) used the videobuf1 framework; commit d80ee38c ("[media] v4l: mem2mem: port m2m_testdev to vb2") converted it to videobuf2. The spinlock was then no longer needed, and this simply went unnoticed. Signed-off-by:
Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
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Dafna Hirschfeld authored
Since each vimc entity type is defined by the callbacks implementation, it is a good idea to add a struct to hold these callbacks. Each vimc entity then declare its type in the file for the entity. Signed-off-by:
Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Signed-off-by:
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Dafna Hirschfeld authored
There are some missing and extra fields and typos in structs documentations in vimc-common.h. Fix it. [mchehab+huawei@kernel.org: add a missing ':' after @bayer field] Signed-off-by:
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Dafna Hirschfeld authored
Currently when the 'add' callback of an entity fails, a NULL is returned. This hides the error code of the failure and always returns -EINVAL. Replace return NULL with return ERR_PTR(ret) to improve debugging. Signed-off-by:
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Dafna Hirschfeld authored
In case the 'add' callback of an entity fails, then all other entities should unregister and released. This should be done inside vimc_add_subdevs so that the function handles its own failure. In order to call vimc_unregister_subdevs and vimc_release_subdevs from vimc_add_subdevs, the order of the function should change. Signed-off-by:
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Dafna Hirschfeld authored
The function vimc_unregister is called only from one place in the code and has only 3 lines so it has no justification. Signed-off-by:
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Adrian Ratiu authored
Each jpeg can have the huffman tables optimized for its specific content meaning that the table lenghts and values don't match the standard table of substitutions so there's no reason to hardcode and expect the standard lengths, otherwise we just end up rejecting optimized jpegs altogether. Tested on CODA960. Signed-off-by:
Adrian Ratiu <adrian.ratiu@collabora.com> Reviewed-by:
Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
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Philipp Zabel authored
Similar to commit 9ee50a94 ("media: coda: lock capture queue wakeup against encoder stop command"), make sure that a JPEG decoder stop command running concurrently with a decoder finish_run always either flags the last returned buffer or wakes up the capture queue to signal the end of stream condition afterwards. This was not necessary for BIT processor contexts because of the need to release the bitstream buffer with the stream end condition. In contrast, the JPEG decoder can be finished with decoding the image between the time the application queues the last output buffer and the time it issues the decoder stop command. Signed-off-by:
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Philipp Zabel authored
If a JPEG decoding application queues the last capture and output buffers, issues a decoder stop command after the decoding is already done, and then dequeues the last capture buffer, it is not marked as last. Detect this condition in the decoder stop command and mark the last buffer on the capture done list. Signed-off-by:
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Philipp Zabel authored
Split marking the last metadata entry into a helper function to simplify coda_decoder_cmd. Signed-off-by:
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Philipp Zabel authored
This patch adds JPEG decoding support for CODA960, handling the JPEG hardware directly. A separate JPEG decoder video device is created due to the separate hardware unit and different supported pixel formats. While the hardware can not change subsampling on the fly, it can decode 4:2:2 subsampled JPEG images into YUV422P. [m.felsch@pengutronix.de: fix qsequence counting by explicitly checking for the !use_bit case] [hverkuil-cisco@xs4all.nl: fix 'warning: missing braces around initializer'] [mchehab+huawei@kernel.org: fix 'BRACES: Unbalanced braces around else statement'] Signed-off-by:
Marco Felsch <m.felsch@pengutronix.de> Signed-off-by:
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Philipp Zabel authored
Add helpers for JPEG header parsing. They allow both scanning for marker segment positions and later parsing the segments individually, as required by s5p-jpeg, as well as parsing all headers in one go, as required by coda-vpu. The frame header is always parsed, as basically all decoders are interested in width, height, and number of components. For convenience, the JPEG chroma subsampling factors are decoded into a v4l2_jpeg_chroma_subsampling enum. Only baseline and extended sequential DCT encoded JPEGs with 8-bit or 12-bit precision with up to four components are supported. Signed-off-by:
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Philipp Zabel authored
The BIT decoders always write 16x16 macroblocks. Align stride and height to avoid spilling luma data into the top of the chroma planes. Signed-off-by:
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Dafna Hirschfeld authored
Add V4L2_PIX_FMT_BGR666 to the format table. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Dafna Hirschfeld authored
In the table of the RGB formats, add an explicit '-' signs to cells that contain undefined bits. This makes it more clear how many bits and bytes are used for each format. Signed-off-by:
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Steve Longerbeam authored
Add the media graph topologies for the i.MX6Q SabreSD and SabreAuto. This makes it easier to understand the topology and follow the entity descriptions in the following sections. Also clarify that the SabreSD and SabreLite media pipeline config examples are for the i.MX6Q boards. Signed-off-by:
Steve Longerbeam <slongerbeam@gmail.com> Reviewed-by:
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Dafna Hirschfeld authored
V4L2_PIX_FMT_GREY format is Ycbcr format without the color data, therefore its pixel_enc should set to V4L2_PIXEL_ENC_YUV. Signed-off-by:
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Wolfram Sang authored
Move away from the deprecated API. Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by:
Mike Isely <isely@pobox.com> Signed-off-by:
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Wolfram Sang authored
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by:
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Wolfram Sang authored
Move away from the deprecated API and make use of the fact that unregistering devices is NULL- and ERR_PTR-safe. Signed-off-by:
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Wolfram Sang authored
Move away from the deprecated API and return the shiny new ERRPTR where useful. Signed-off-by:
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Wolfram Sang authored
Move away from the deprecated API. Signed-off-by:
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Wolfram Sang authored
Move away from the deprecated API and make use of the fact that unregistering devices is NULL- and ERR_PTR-safe. Signed-off-by:
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Ezequiel Garcia authored
Convert Rockchip VPU (Hantro IP block) codec driver documentation to json-schema. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Ezequiel Garcia authored
Refactor how S_FMT and TRY_FMT are handled, and also make sure internal initial format and format reset are done properly. The latter is achieved by making sure the same hantro_{set,try}_fmt helpers are called on all paths that set the format (which is part of the driver state). This commit removes the following v4l2-compliance warnings: test VIDIOC_G_FMT: OK fail: v4l2-test-formats.cpp(711): Video Capture Multiplanar: TRY_FMT(G_FMT) != G_FMT test VIDIOC_TRY_FMT: FAIL fail: v4l2-test-formats.cpp(1116): Video Capture Multiplanar: S_FMT(G_FMT) != G_FMT test VIDIOC_S_FMT: FAIL Reported-by:Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by:
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Ezequiel Garcia authored
Move the extra bytes calculation that are needed for H264 motion vector to a helper. This is just a cosmetic cleanup. Signed-off-by:
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Ezequiel Garcia authored
Since now .buf_prepare takes care of setting the buffer payload size, we can get rid of this, at least for decoders. Signed-off-by:
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Ezequiel Garcia authored
Let the core sort out the nuances of returning buffers to userspace, by using the v4l2_m2m_buf_done_and_job_finish helper. Signed-off-by:
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Ezequiel Garcia authored
Buffers' zeroth plane payload size is calculated at format negotiation time, and so it can be set in .buf_prepare. Keep in mind that, to make this change easier, hantro_buf_prepare is refactored, using the cedrus driver as reference. This results in cleaner code as byproduct. Signed-off-by:
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Ezequiel Garcia authored
When the request API is used, typically an OUTPUT (src) buffer will be part of a request. A userspace process will be typically blocked, waiting on the request file descriptor. Returning the OUTPUT (src) buffer will wake-up such processes, who will immediately attempt to dequeue the CAPTURE buffer, only to find it's still unavailable. Therefore, change v4l2_m2m_buf_done_and_job_finish returning the CAPTURE (dst) buffer first, to avoid signalling the request file descriptor prematurely, i.e. before the CAPTURE buffer is done. When the request API is not used, this change should have no impact. Tested-by:
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Mauro Carvalho Chehab authored
Changing from "depends on" to "select" may cause some side-effects. This patch is not ready to be merged yet, as it requires some adjustments. So, let's revert it. This reverts commit a3b91d8b. Signed-off-by:
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Mauro Carvalho Chehab authored
Now that everything got moved, we can get rid of the old media directory. Signed-off-by: -
Mauro Carvalho Chehab authored
There are some uAPI stuff that are driver-specific. Add them to the main media uAPI body. Signed-off-by: -
Mauro Carvalho Chehab authored
Those documents don't really describe the driver API. Instead, they contain development-specific information. Yet, as the main index file describes the content of it as: "how specific kernel subsystems work from the point of view of a kernel developer" It seems to be the better fit. Signed-off-by: -
Mauro Carvalho Chehab authored
Most of the driver-specific documentation is meant to help users of the media subsystem. Move them to the admin-guide. It should be noticed, however, that several of those files are outdated and will require further work in order to make them useful again. Signed-off-by: -
Mauro Carvalho Chehab authored
This file gives a hint about how fourcc should be named. It is on a very weird place, as such kind of thing belongs to the uAPI guide. Signed-off-by: -
Mauro Carvalho Chehab authored
All those documents describe the media driver API. So, move them to the right place within the Kernel documentation. Signed-off-by: -
Mauro Carvalho Chehab authored
Since 2017, there is an space reserved for userspace API, created by changeset 1d596dee ("docs: Create a user-space API guide"). As the media subsystem was one of the first subsystems to use Sphinx, until this patch, we were keeping things on a separate place. Let's just use the new location, as having all uAPI altogether will likely make things easier for developers. Signed-off-by:
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Mauro Carvalho Chehab authored
This file contains both driver develompent documentation and userspace API. Split on two, as they're usually read by different audiences. Signed-off-by:
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