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path: root/drivers/media/platform/vsp1/vsp1_entity.c
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2018-06-12treewide: devm_kzalloc() -> devm_kcalloc()Kees Cook1-1/+2
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-25media: vsp1: Adapt entities to configure into a bodyKieran Bingham1-10/+12
Currently the entities store their configurations into a display list. Adapt this such that the code can be configured into a body directly, allowing greater flexibility and control of the content. All users of vsp1_dl_list_write() are removed in this process, thus it too is removed. A helper, vsp1_dl_list_get_body0() is provided to access the internal body0 from the display list. [laurent.pinchart+renesas@ideasonboard.com: Don't remove blank line unnecessarily] Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25media: vsp1: Refactor display list configure operationsKieran Bingham1-0/+24
The entities provide a single .configure operation which configures the object into the target display list, based on the vsp1_entity_params selection. Split the configure function into three parts, '.configure_stream()', '.configure_frame()', and '.configure_partition()' to facilitate splitting the configuration of each parameter class into separate display list bodies. [laurent.pinchart+renesas@ideasonboard.com: Blank line reformatting, remote unneeded local variable initialization] Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17media: v4l: vsp1: Add support for the DISCOM entityLaurent Pinchart1-0/+6
The DISCOM calculates a CRC on a configurable window of the frame. It interfaces to the VSP through the UIF glue, hence the name used in the code. The module supports configuration of the CRC window through the crop rectangle on the sink pad of the corresponding entity. However, unlike the traditional V4L2 subdevice model, the crop rectangle does not influence the format on the source pad. Modeling the DISCOM as a sink-only entity would allow adhering to the V4L2 subdevice model at the expense of more complex code in the driver, as at the hardware level the UIF is handled as a sink+source entity. As the DISCOM is only present in R-Car Gen3 VSP-D and VSP-DL instances it is not exposed to userspace through V4L2 but controlled through the DU driver. We can thus change this model later if needed without fear of affecting userspace. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17media: v4l: vsp1: Reset the crop and compose rectangles in the set_fmt helperLaurent Pinchart1-0/+16
To make vsp1_subdev_set_pad_format() usable by entities that support selection rectangles, we need to reset the crop and compose rectangles when setting the format on the sink pad. Do so and replace the custom set_fmt implementation of the histogram code by a call to vsp1_subdev_set_pad_format(). Resetting the crop and compose rectangles for entities that don't support crop and compose has no adverse effect as the rectangles are ignored anyway. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17media: v4l: vsp1: Share the CLU, LIF and LUT set_fmt pad operation codeLaurent Pinchart1-0/+75
The implementation of the set_fmt pad operation is identical in the three modules. Move it to a generic helper function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17media: v4l: vsp1: Use SPDX license headersLaurent Pinchart1-5/+1
Adopt the SPDX license identifier headers to ease license compliance management. All files in the driver are licensed under the GPLv2+ except for the vsp1_regs.h file which is licensed under the GPLv2. This is likely an oversight, but fixing this requires contacting the copyright owners and is out of scope for this patch. While at it fix the file descriptions to match file names where copy and paste error occurred. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2017-08-03v4l: vsp1: Add support for multiple LIF instancesLaurent Pinchart1-1/+2
The VSP2-DL instance (present in the H3 ES2.0 and M3-N SoCs) has two LIF instances. Adapt the driver infrastructure to support multiple LIFs. Support for multiple display pipelines will be added separately. The change to the entity routing table removes the ability to connect the LIF output to the HGO or HGT histogram generators. This feature is only available on Gen2 hardware, isn't supported by the rest of the driver, and has no known use case, so this isn't an issue. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-29v4l: vsp1: Add support for the BRS entityLaurent Pinchart1-2/+11
The Blend/ROP Sub Unit (BRS) is a stripped-down version of the BRU found in several VSP2 instances. Compared to a regular BRU, it supports two inputs only, and thus has no ROP unit. Add support for the BRS by modelling it as a new entity type, but reuse the vsp1_bru object underneath. Chaining the BRU and BRS entities seems to be supported by the hardware but isn't implemented yet as it isn't the primary use case for the BRS. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-29v4l: vsp1: Store source and sink pointers as vsp1_entityLaurent Pinchart1-13/+13
The internal VSP entity source and sink pointers are stored as media_entity pointers, which are then cast to a vsp1_entity. As all sources and sinks are vsp1_entity instances, we can store the vsp1_entity pointers directly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14[media] v4l: vsp1: Add HGT supportNiklas Söderlund1-0/+14
The HGT is a Histogram Generator Two-Dimensions. It computes a weighted frequency histograms for hue and saturation areas over a configurable region of the image with optional subsampling. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14[media] v4l: vsp1: Add HGO supportLaurent Pinchart1-0/+16
The HGO is a Histogram Generator One-Dimension. It computes per-channel histograms over a configurable region of the image with optional subsampling. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14[media] v4l: vsp1: Support histogram generators in pipeline configurationLaurent Pinchart1-13/+111
Histogram generators are single-pad entities that branch as leaf nodes at any point in the pipeline. Make sure that pipeline traversal and routing configuration support them correctly. Support for the actual HGO and HGT operation will come later. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10[media] v4l: vsp1: Fix multi-line comment styleLaurent Pinchart1-3/+6
Fix all multi-line comments to comply with the kernel coding style. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-19[media] v4l: vsp1: Protect against race conditions between get and set formatLaurent Pinchart1-3/+19
The subdev userspace API isn't serialized in the core, serialize access to formats and selection rectangles in the driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-28[media] v4l: vsp1: Add Cubic Look Up Table (CLU) supportLaurent Pinchart1-0/+1
The CLU processing block is a 2D/3D lookup table that converts the input three color component data into desired three color components using a lookup table. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-28[media] v4l: vsp1: Set entities functionsLaurent Pinchart1-1/+2
Initialize the function field of all subdev entities instantiated by the driver. This gets rids of multiple warnings printed by the media controller core. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-17[media] v4l: vsp1: Make vsp1_entity_get_pad_compose() more genericLaurent Pinchart1-4/+22
Turn the helper into a function that can retrieve crop and compose selection rectangles. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-17[media] v4l: vsp1: Replace container_of() with dedicated macroLaurent Pinchart1-2/+8
Add a macro to cast from a struct media_entity to a struct vsp1_entity to replace the manual implementations. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-17[media] v4l: vsp1: Add output node value to routing tableLaurent Pinchart1-18/+34
The output node value indicates the value to be used in a sampling point register to use the node as the source of histogram data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-04-13[media] v4l: vsp1: Factorize frame size enumeration codeLaurent Pinchart1-0/+52
Most of the entities can't perform scaling and implement the same frame size enumeration function. Factorize the code into a single implementation. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Factorize media bus codes enumeration codeLaurent Pinchart1-0/+46
Most of the entities can't perform format conversion and implement the same media bus enumeration function. Factorize the code into a single implementation. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Factorize get pad format codeLaurent Pinchart1-0/+25
All entities implement the same get pad format handler, factorize it into a common function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: RPF entities can't be target nodesLaurent Pinchart1-5/+5
The RPF entities are located at the very beginning of pipelines, they can't be target nodes in the Data Path Router matrix. Remove their input ID from the routing table. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Pass display list explicitly to configure functionsLaurent Pinchart1-11/+4
Modules write register values to the active display list pointed to by the pipeline. In order to support preparing display lists ahead of time, pass them explicitly to all configuration functions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Store active selection rectangles in a pad config structureLaurent Pinchart1-0/+8
Use the pad config structure part of the vsp1_entity to store all active pad selection rectangles. This generalizes the code to operate on pad config structures. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Store active formats in a pad config structureLaurent Pinchart1-15/+45
Add a pad config structure field to the vsp1_entity structure and use it to store all active pad formats. This generalizes the code to operate on pad config structures. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Implement and use the subdev pad::init_cfg configurationLaurent Pinchart1-18/+6
Turn the custom formats initialization function into a standard pad::init_cfg handler and use it in subdevs instead of initializing formats in the subdev open handler. This makes the subdev open handler empty, so remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Consolidate entity ops in a struct vsp1_entity_operationsLaurent Pinchart1-2/+2
Entities have two operations, a destroy operation stored directly in vsp1_entity and a set_memory operation stored in a vsp1_rwpf_operations structure. Move the two to a more generic vsp1_entity_operations structure that will serve to implement additional operations. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Move subdev initialization code to vsp1_entity_init()Laurent Pinchart1-5/+25
Don't duplicate the code in every module driver, centralize it in a single place. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Use display lists with the userspace APILaurent Pinchart1-4/+1
Don't restrict display list usage to the DRM pipeline, use them unconditionally. This prepares the driver to support the request API. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Remove unneeded entity streaming flagLaurent Pinchart1-23/+0
The flag is set but never read, remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Don't setup control handler when starting streamingLaurent Pinchart1-17/+1
The control handler set operations don't program the hardware anymore, there's thus no need to call them when starting the stream. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Store the display list manager in the WPFLaurent Pinchart1-0/+2
Each WPF can process display lists independently, move the manager to the WPF to reflect that and prepare for display list support for non-DRM pipelines. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Split display list manager from display listLaurent Pinchart1-1/+1
This clarifies the API and prepares display list support for being used to implement the request API. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-04-13[media] v4l: vsp1: Use pipeline display list to decide how to write to modulesLaurent Pinchart1-0/+12
This allows getting rid of the vsp1_device::use_dl field. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Configure device based on IP versionLaurent Pinchart1-1/+1
The IP version number carries enough information to identify the exact device instance features. Drop the related DT properties and use the IP version instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Add display list supportTakashi Saito1-2/+2
Display lists contain lists of registers and associated values to be applied atomically by the hardware. They lower the pressure on interrupt processing delays when reprogramming the device as settings can be prepared well in advance and queued to the hardware without waiting for the end of the current frame. Display list support is currently limited to the DRM pipeline. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Add support for the R-Car Gen3 VSP2Laurent Pinchart1-1/+2
Add DT compatible strings for the VSP2 instances found in the R-Car Gen3 SoCs and support them in the vsp1 driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Don't validate links when the userspace API is disabledLaurent Pinchart1-8/+3
As the pipeline is configured internally by the driver when the userspace API is disabled its configuration can be trusted and link validation isn't needed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Make the userspace API optionalLaurent Pinchart1-1/+1
The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will be controlled entirely by the rcar-du-drm driver through the KMS API. To support that use case make the userspace V4L2 API optional. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Move entity route setup function to vsp1_entity.cLaurent Pinchart1-0/+12
The function will be used by the DU code, move it out of vsp1_video.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-19[media] v4l: vsp1: Move video device out of struct vsp1_rwpfLaurent Pinchart1-3/+0
To make the video device nodes optional we need to decouple the [rw]pf instances from the video devices. Move video devices out of struct vsp1_rwpf and instantiate them dynamically in the core driver code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] media framework: rename pads init function to media_entity_pads_init()Mauro Carvalho Chehab1-1/+1
With the MC next gen rework, what's left for media_entity_init() is to just initialize the PADs. However, certain devices, like a FLASH led/light doesn't have any input or output PAD. So, there's no reason why calling media_entity_init() would be mandatory. Also, despite its name, what this function actually does is to initialize the PADs data. So, rename it to media_entity_pads_init() in order to reflect that. The media entity actual init happens during entity register, at media_device_register_entity(). We should move init of num_links and num_backlinks to it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] media: get rid of unused "extra_links" param on media_entity_init()Mauro Carvalho Chehab1-1/+1
Currently, media_entity_init() creates an array with the links, allocated at init time. It provides a parameter (extra_links) that would allocate more links than the current needs, but this is not used by any driver. As we want to be able to do dynamic link allocation/removal, we'll need to change the implementation of the links. So, before doing that, let's first remove that extra unused parameter, in order to cleanup the interface first. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-17[media] v4l: vsp1: Don't sleep in atomic contextLaurent Pinchart1-9/+9
The vsp1_entity_is_streaming() function is called in atomic context when queuing buffers, and sleeps due to a mutex. As the mutex just protects access to one structure field, fix this by replace the mutex with a spinlock. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-23[media] v4l2-subdev: replace v4l2_subdev_fh by v4l2_subdev_pad_configHans Verkuil1-8/+8
If a subdevice pad op is called from a bridge driver, then there is no v4l2_subdev_fh struct that can be passed to the subdevice. This made it hard to use such subdevs from a bridge driver. This patch replaces the v4l2_subdev_fh pointer by a v4l2_subdev_pad_config pointer in the pad ops. This allows bridge drivers to use the various try_ pad ops by creating a v4l2_subdev_pad_config struct and passing it along to the pad op. The v4l2_subdev_get_try_* macros had to be changed because of this, so I also took the opportunity to use the full name of the v4l2_subdev_get_try_* functions in the __V4L2_SUBDEV_MK_GET_TRY macro arguments: if you now do 'git grep v4l2_subdev_get_try_format' you will actually find the header where it is defined. One remark regarding the drivers/staging/media/davinci_vpfe patches: the *_init_formats() functions assumed that fh could be NULL. However, that's not true for this driver, it's always set. This is almost certainly a copy and paste from the omap3isp driver. I've updated the code to reflect the fact that fh is never NULL. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-07-17[media] v4l: vsp1: Setup control handler automatically at stream on timeLaurent Pinchart1-0/+39
When setting a control directly on a subdev node the VSP1 driver doesn't guarantee that the device is powered on. This leads to crashes when the control handlers writes to hardware registers. One easy way to fix this is to ensure that the device gets powered on when a subdev node is opened. However, this consumes power unnecessarily, as there's no need to power the device on when setting formats on the pipeline. Furthermore, control handler setup at entity init time suffers from the same problem as the device isn't powered on easier. Fix this by extend the entity base object to setup the control handler automatically when starting the stream. Entities must then skip writing to registers in the set control handler when not streaming, which can be tested with the new vsp1_entity_is_streaming() helper function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-17[media] v4l: vsp1: Cleanup video nodes at removal timeLaurent Pinchart1-0/+3
Video nodes created and initialized in the RPF and WPF init code paths are never unregistered, and the related resources (videobuf alloc context and media entity) never released. Fix this by storing a pointer to the vsp1_video object in vsp1_entity and calling vsp1_video_cleanup() from vsp1_entity_destroy(). This also allows simplifying the init error code paths. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-23[media] v4l: vsp1: Add BRU supportLaurent Pinchart1-0/+3
The Blend ROP Unit performs blending and ROP operations for up to four sources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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