- 24 Sep, 2022 40 commits
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Tomi Valkeinen authored
Add a new media entity operation, has_pad_interdep. The optional op is used to discover the pad interdependencies inside an entity during the pipeline construction. Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@kernel.org>
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Laurent Pinchart authored
[Note: the code is mostly from Laurent but the patch description is from Tomi] The media_pipeline_start() and media_pipeline_stop() functions use the media graph walk API to traverse the graph and validate the pipeline. The graph walk traverses the media graph following links between the entities. Also, while the pipeline can't change between the start and stop calls, the graph is walked again from scratch at stop time, or any time a driver needs to inspect the pipeline. With the upcoming multiplexed streams support we will need a bit more intelligent pipeline construction, as e.g. two independent streams may be passing through a single entity via separate pads in which case those pads should not be part of the same pipeline. This patch essentially rewrites the media_pipeline_start/stop so that a pipeline is defined as a set of pads instead of entities and the media graph traversal considers the pad interdependencies when choosing which links to follow. Currently all the entity's pads are considered as interdependent. This means that the behavior with all the current drivers stays the same, but in the future we can define a more fine-grained pipeline construction. Additionally the media pipeline's pads are cached at media_pipeline_start() time, and re-used at media_pipeline_stop() which avoid the need to re-walk the whole graph as the previous implementation did. Also, caching pads in the pipeline can serve in the future as the foundation to provide a better API than the media graph walk to drivers to iterate over pads and entities in the pipeline. Note that the old media_pipeline_start/stop used the media graph walk API. The new version does not use the media graph walk API, but instead a new implementation. There are two reasons for not changing the graph walk: it proved to be rather difficult to change the graph walk to have the features implemented in this patch, and second, this keeps the backward compatibility of the graph walk as there are users of the graph walk API The long term plan is that all the existing code would be converted to use the new cached pipeline, thus allowing us to remove the graph walk. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
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Tomi Valkeinen authored
Use video_device_pipeline_alloc_start() instead of manually allocating/managing the media pipeline storage. Signed-off-by:
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Tomi Valkeinen authored
Add new variant of media_pipeline_start(), media_pipeline_alloc_start(). media_pipeline_alloc_start() can be used by drivers that do not need to extend the media_pipeline. The function will either use the pipeline already associated with the entity, if such exists, or allocate a new pipeline. When media_pipeline_stop() is called and the pipeline's use count drops to zero, the pipeline is automatically freed. Signed-off-by:
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Tomi Valkeinen authored
Use video_device_pipeline() in the drivers instead of media_entity_pipeline(). Signed-off-by:
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Tomi Valkeinen authored
Convert the media drivers to use video device based pipeline start/stop where possible. Signed-off-by:
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Tomi Valkeinen authored
With the upcoming stream related improvements to the pipelines, the pipelines are moved from media entities to media pads. As the drivers currently use the pipelines with the entity based model, moving the pipelines to pads will cause changes to the drivers. However, most of the uses of media pipelines are related to a video device (a DMA engine) with a single pad, and thus there's never a need to support multiple pads in these use cases. We can avoid pushing the complexities of the pad based model to the drivers by adding video device wrappers for the pipeline related functions. This patch adds a number of wrappers to media_pipeline functions, all of which take a video_device as a parameter (instead of a media_entity), and verify that there's just one pad. Signed-off-by:
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Laurent Pinchart authored
Replace direct access to the pipe field in drivers with a new helper function. This will allow easier refactoring of media pipeline handling in the MC core behind the scenes without affecting drivers. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Laurent Pinchart authored
The media_entity_get_fwnode_pad() function is unrelated to the graph traversal code that it is currently bundled with. Move it with the media_entity_remote_pad() function. Signed-off-by:
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Laurent Pinchart authored
The media_entity_enum_init() function is a wrapper around __media_entity_enum_init() that turns a media_device pointer argument into the maximum entity ID in the corresponding media graph. __media_entity_enum_init() is never used outside of media_entity_enum_init(), so the two functions can be merged together. Signed-off-by:
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Jacopo Mondi authored
Add an iterator helper to easily cycle through all pads in an entity and use it in media-entity and media-device code where appropriate. Signed-off-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by:
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Tomi Valkeinen authored
'streaming_count' is a bit misleading name, as the count is increased with media_pipeline_start(). Let's rename it to 'start_count' instead. Signed-off-by:
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Tomi Valkeinen authored
V4L2_FRAME_DESC_ENTRY_MAX is currently set to 4. In theory it's possible to have an arbitrary amount of streams in a single pad, so preferably there should be no hardcoded maximum number. However, I believe a reasonable max is 8, which would cover a CSI-2 pad with 4 streams of pixel data and 4 streams of metadata. Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by:
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Tomi Valkeinen authored
./include/media/media-entity.h:595:34: error: implicit declaration of function ‘min’ Include minmax.h to get the definition for min(). Signed-off-by:
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Tomi Valkeinen authored
The doc talks about streams and pipelines, but doesn't really define them. This is an attempt to define them according to my understanding. Signed-off-by:
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Sakari Ailus authored
struct v4l2_fwnode_endpoint was zeroed previously apart from the endpoint information itself when the endpoint properties were parsed. Now this hasn't been the case for a few years so remove the comment. Signed-off-by:
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Sakari Ailus authored
PHY_SUN6I_MIPI_DPHY is not a freely selectable option and so may not always be available. Depend on it instead. Fixes: 94d7fd96 ("media: sunxi: Depend on GENERIC_PHY_MIPI_DPHY") Signed-off-by:
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Christophe JAILLET authored
The commit in Fixes also introduced some new error handling which should goto the existing error handling path. Otherwise some resources leak. Fixes: 73dcffeb ("media: i2c: Support 19.2MHz input clock in ov8865") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Sakari Ailus authored
The return value from register writes is ignored apart from the last value. Fix this. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Sakari Ailus authored
The state argument for the functions for obtaining various parts of the state is NULL if it is called by drivers for active state. Fail graciously in that case instead of dereferencing a NULL pointer. Suggested-by:
Bingbu Cao <bingbu.cao@intel.com> Signed-off-by:
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Sakari Ailus authored
What the IMGU driver did was that it first acquired the pointers to active and try V4L2 subdev state, and only then figured out which one to use. The problem with that approach and a later patch (see Fixes: tag) is that as sd_state argument to v4l2_subdev_get_try_crop() et al is NULL, there is now an attempt to dereference that. Fix this. Also rewrap lines a little. Fixes: 0d346d2a ("media: v4l2-subdev: add subdev-wide state struct") Cc: stable@vger.kernel.org # for v5.14 and later Signed-off-by:
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Sakari Ailus authored
ret in ar0521_set_fmt is never set to values other than 0. Replace it with plain 0. Reported-by:
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Yang Yingliang authored
Return error code if ar0521_write_regs() fails in ar0521_power_on(). Fixes: 852b50ae ("media: On Semi AR0521 sensor driver") Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Acked-by:
Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by:
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Slark Xiao authored
Replace 'the the' with 'the' in the comment. Signed-off-by:
Slark Xiao <slark_xiao@163.com> Reviewed-by:
Jacopo Mondi <jacopo@jmondi.org> Signed-off-by:
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Alexander Stein authored
The doc says the I²C device's name is used if devname is NULL, but actually the I²C device driver's name is used. Fixes: 06582930 ("media: v4l: subdev: Add a function to set an I²C sub-device's name") Signed-off-by:
Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by:
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Paul Elder authored
Switch to using runtime PM for power management. Make it optional, however, to support ACPI. Signed-off-by:
Paul Elder <paul.elder@ideasonboard.com> Reviewed-by:
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Jean-Michel Hautbois authored
The documentation states that the BNR factor is a multiplier coded as u3.13 and with a range of (0, 8). This is not correct, as the isp is adding 1.0 to the gain applied, ie Pout = { Pin * (1 + Gx) }. It means that a gain of 1.0 should be coded as 0. Signed-off-by:Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by:
Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by:
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Benjamin Gaignard authored
Luma and chroma depth are set on different hardware registers. Even if they aren't identical the bitstream can be compliant to HEVC specifications and decoded by the hardware. With this patch TSUNEQBD_A_MAIN10_Technicolor_2 conformance test is successfully decoded. Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by:
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by:
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Benjamin Gaignard authored
Expose 10bit pixel formats to enable 10bit decoding in IMX8M SoCs. Signed-off-by:
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Benjamin Gaignard authored
Stop limiting HEVC support to 8-bits bitstreams also accept 10-bits bitstreams. Signed-off-by:
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Benjamin Gaignard authored
Move output format setting in postproc and make sure that 8/10bit configuration is correctly set. Signed-off-by:
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Benjamin Gaignard authored
The chroma offset depends of the bitstream depth. Make sure that ctx->bit_depth is used to compute it. Signed-off-by:
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Benjamin Gaignard authored
SAO and FILTER buffers size depend of the bit depth. Make sure we have enough space for 10bit bitstreams. Signed-off-by:
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Benjamin Gaignard authored
Store HEVC bit depth in context. Bit depth is equal to hevc sps bit_depth_luma_minus8 + 8. Signed-off-by:
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Hangyu Hua authored
v4l2_device_unregister need to be called to put the refcount got by v4l2_device_register when vdec_probe fails or vdec_remove is called. Signed-off-by:
Hangyu Hua <hbh25y@gmail.com> Signed-off-by:
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Rory Liu authored
The Google Kuldax device uses the same approach as the Google Brask which enables the HDMI CEC via the cros-ec-cec driver. Signed-off-by:
Rory Liu <hellojacky0226@hotmail.com> Signed-off-by:
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Lukas Bulwahn authored
Commit e33fdb5a ("media: saa7146: deprecate hexium_gemini/orion, mxb and ttpci") moves some media drivers to the staging subsystem, and unfortunately only partially adjusts the entry in MAINTAINERS. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a broken reference. As the files matching include/media/drv-intf/saa7146* are moved to drivers/staging/media/deprecated/saa7146/common, this directory is already covered by the existing file entry drivers/staging/media/deprecated/saa7146/. Repair this file reference in SAA7146 VIDEO4LINUX-2 DRIVER. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by:
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Lukas Bulwahn authored
Commit 2a0c2806 ("media: zoran: move to mainline") moves the zoran driver from the staging to the media subsystem, but does not adjust the entry in MAINTAINERS. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a broken reference. Repair this file reference in ZR36067 VIDEO FOR LINUX DRIVER. Signed-off-by:
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ye xingchen authored
Return the value xc_send_i2c_data() directly instead of storing it in another redundant variable. Signed-off-by:
ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by:
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Sun Ke authored
mdp_comp_clock_on will increase runtime PM usage counter, and mdp_comp_clock_off will decrease the runtime PM usage counter. so, if mdp_comp_clock_on failed after increment runtime PM usage counter, it should decrease it before return a error code. pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. And if failed to enable clk, add pm_runtime_put() to decrease the runtime PM usage counter. Fixes: 61890cca ("media: platform: mtk-mdp3: add MediaTek MDP3 driver") Signed-off-by:
Sun Ke <sunke32@huawei.com> Signed-off-by:
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