- 01 Sep, 2020 40 commits
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Ezequiel Garcia authored
The H.264 specification requires in section 7.4.3 "Slice header semantics", that the following values shall be the same in all slice headers: pic_parameter_set_id frame_num field_pic_flag bottom_field_flag idr_pic_id pic_order_cnt_lsb delta_pic_order_cnt_bottom delta_pic_order_cnt[ 0 ] delta_pic_order_cnt[ 1 ] sp_for_switch_flag slice_group_change_cycle These bitstream fields are part of the slice header, and therefore passed redundantly on each slice. The purpose of the redundancy is to make the codec fault-tolerant in network scenarios. This is of course not needed to be reflected in the V4L2 controls, given the bitstream has already been parsed by applications. Therefore, move the redundant fields to the per-frame decode parameters control (DECODE_PARAMS). Field 'pic_parameter_set_id' is simply removed in this case, because the PPS control must currently contain the active PPS. Syntax elements dec_ref_pic_marking() and those related to pic order count, remain invariant as well, and therefore, the fields dec_ref_pic_marking_bit_size and pic_order_cnt_bit_size are also common to all slices. Signed-off-by:
Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by:
Nicolas Dufresne <nicolas.dufresne@collabora.com> Tested-by:
Jonas Karlman <jonas@kwiboo.se> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Ezequiel Garcia authored
Currently, the SLICE_BASED and FRAME_BASED modes documentation is misleading and not matching the intended use-cases. Drop non-required fields SLICE_PARAMS 'start_byte_offset' and DECODE_PARAMS 'num_slices' and clarify the decoding modes in the documentation. On SLICE_BASED mode, a single slice is expected per OUTPUT buffer, and therefore 'start_byte_offset' is not needed (since the offset to the slice is the start of the buffer). This mode requires the use of CAPTURE buffer holding, and so the number of slices shall not be required. On FRAME_BASED mode, the devices are expected to take care of slice parsing. Neither SLICE_PARAMS are required (and shouldn't be exposed by frame-based drivers), nor the number of slices. Signed-off-by:
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Ezequiel Garcia authored
The SLICE_PARAMS control is intended for slice-based devices. In this mode, the OUTPUT buffer contains a single slice, and so the buffer's plane payload size can be used to query the slice size. To reduce the API surface drop the size from the SLICE_PARAMS control. A follow-up change will remove other members in SLICE_PARAMS so we don't need to add padding fields here. Signed-off-by:
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Ezequiel Garcia authored
DPB entry PicNum maximum value is 2*MaxFrameNum for interlaced content (field_pic_flag=1). As specified, MaxFrameNum is 2^(log2_max_frame_num_minus4 + 4) and log2_max_frame_num_minus4 is in the range of 0 to 12, which means pic_num should be a 32-bit field. The v4l2_h264_dpb_entry struct needs to be padded to avoid a hole, which might be also useful to allow future uAPI extensions. Signed-off-by:
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Ezequiel Garcia authored
As discussed recently, the current interface for the Decoded Picture Buffer is not enough to properly support field coding. This commit introduces enough semantics to support frame and field coding, and to signal how DPB entries are "used for reference". Reserved fields will be added by a follow-up commit. Signed-off-by:
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Ezequiel Garcia authored
Slice header syntax element 'first_mb_in_slice' can point to the last macroblock, currently the field can only reference 65536 macroblocks which is insufficient for 8K videos. Although unlikely, a 8192x4320 video (where macroblocks are 16x16), would contain 138240 macroblocks on a frame. As per the H264 specification, 'first_mb_in_slice' can be up to PicSizeInMbs - 1, so increase the size of the field to 32-bits. Note that v4l2_ctrl_h264_slice_params struct will be modified in a follow-up commit, and so we defer its 64-bit padding. Signed-off-by:
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Philipp Zabel authored
Since pic_order_cnt_bit_size is not a syntax element itself, explicitly state that it is the total size in bits of the pic_order_cnt_lsb, delta_pic_order_cnt_bottom, delta_pic_order_cnt[0], and delta_pic_order_cnt[1] syntax elements contained in the slice. [Ezequiel: rebase] Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
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Ezequiel Garcia authored
The prediction weight parameters are only required under certain conditions, which depend on slice header parameters. As specified in section 7.3.3 Slice header syntax, the prediction weight table is present if: ((weighted_pred_flag && (slice_type == P || slice_type == SP)) || \ (weighted_bipred_idc == 1 && slice_type == B)) Given its size, it makes sense to move this table to its control, so applications can avoid passing it if the slice doesn't specify it. Before this change struct v4l2_ctrl_h264_slice_params was 960 bytes. With this change, it's 188 bytes and struct v4l2_ctrl_h264_pred_weight is 772 bytes. Signed-off-by:
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Ezequiel Garcia authored
Commit 0b0393d5 ("media: uapi: h264: clarify expected scaling_list_4x4/8x8 order") improved the documentation on H264 scaling lists order. This commit improves the documentation by clarifying that the lists themselves are expected in raster scan order. Signed-off-by:
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Jernej Skrabec authored
When dealing with interlaced frames, reference lists must tell if each particular reference is meant for top or bottom field. This info is currently not provided at all in the H264 related controls. Change reference lists to hold a structure, which specifies an index into the DPB array and the field/frame specification for the picture. Currently the only user of these lists is Cedrus which is just compile fixed here. Actual usage of will come in a following commit. Signed-off-by:
Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by:
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Bingbu Cao authored
The unit of exposure value is different from other OmniVision sensors, driver will divide by 2 before set register, the exposure range exposed by v4l2 ctrl to user should be same as others, so the calculation for the maximum exposure value in current driver need be fixed. Signed-off-by:
Bingbu Cao <bingbu.cao@intel.com> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Sakari Ailus authored
While we have had some example drivers, there has been up to date no formal documentation on how camera sensor drivers should be written; what are the practices, why, and where they apply. Signed-off-by:
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Raag Jadav authored
Make use of SCCB APIs for regmap operations. Remove i2c_check_functionality as devm_regmap_init_sccb does it for us. Signed-off-by:
Raag Jadav <raagjadav@gmail.com> Signed-off-by:
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Hans Verkuil authored
1) the numerator and/or denominator might be 0, in that case fall back to the default frame interval. This is per the spec and this caused a v4l2-compliance failure. 2) the updated frame interval wasn't returned in the s_frame_interval subdev op. Signed-off-by:
Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by:
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Tom Rix authored
clang static analysis reports this error m5mols_core.c:767:4: warning: Called function pointer is null (null dereference) [core.CallAndMessage] info->set_power(&client->dev, 0); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In other places, the set_power ptr is checked. So add a check. Fixes: bc125106 ("[media] Add support for M-5MOLS 8 Mega Pixel camera ISP") Signed-off-by:Tom Rix <trix@redhat.com> Signed-off-by:
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Colin Ian King authored
Currently the error return from the call to max9286_read is masked with 0xf0 so the following check for a negative error return is never true. Fix this by checking for an error first, then masking the return value for subsequent conflink_mask checking. Addresses-Coverity: ("Logically dead code") Fixes: 66d8c9d2 ("media: i2c: Add MAX9286 driver") Signed-off-by:Colin Ian King <colin.king@canonical.com> Reviewed-by:
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by:
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Alexander A. Klimov authored
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by:Alexander A. Klimov <grandmaster@al2klimov.de> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Paul Kocialkowski authored
Although the code is correct and doing the right thing, the clock diagram showed the wrong register for the bit divider, which had me doubting the understanding of the tree. Fix this to avoid doubts in the future. Signed-off-by:
Paul Kocialkowski <paul.kocialkowski@bootlin.com> Fixes: aa288248 ("media: ov5640: Adjust the clock based on the expected rate") Acked-by:
Jacopo Mondi <jacopo@jmondi.org> Signed-off-by:
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Jordan Hand authored
Fix improper line breaks and format all example yavta and media-ctl commands as code blocks to improve readability. Signed-off-by:
Jordan Hand <jorhand@linux.microsoft.com> Signed-off-by:
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Jacopo Mondi authored
Since the current maintainer email address bounces back, replace the entry and make myself and Dave Stevenson maintainers of the driver. Reviewed-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Acked-by:
Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by:
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Jacopo Mondi authored
Document the optional clock-noncontinuous endpoint property that allows enabling MIPI CSI-2 non-continuous clock operations. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Jacopo Mondi authored
Document in dt-schema bindings for the ov5647 sensor the optional 'pwdn-gpios' property. Signed-off-by:
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Jacopo Mondi authored
Convert the ov5647 image sensor bindings to DT schema and add the file entry to MAINTAINERS. Reviewed-by:
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Rahul Gottipati authored
This fixes a multiline comment style warning as found by checkpatch.pl. Signed-off-by:
Rahul Gottipati <rahul.blr97@gmail.com> Signed-off-by:
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Bingbu Cao authored
Fix the typo in email address of Tianshu Qiu and correct the name. Reported-by:
Bjorn Helgaas <helgaas@kernel.org> Signed-off-by:
Tianshu Qiu <tian.shu.qiu@intel.com> Signed-off-by:
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Bingbu Cao authored
The OTP data was not ready after registered as nvmem device, it is risky as the nvmem read may happen once the device exists, this patch get the OTP data ready before registering the nvmem device. OTP data missing should not break the normal camera sensor probe, so use a warning instead of an error message. Signed-off-by:
Qingwu Zhang <qingwu.zhang@intel.com> Suggested-by:
Sergey Senozhatsky <senozhatsky@chromium.org> Reviewed-by:
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Greg Kroah-Hartman authored
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Greg Kroah-Hartman authored
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by:
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Greg Kroah-Hartman authored
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by:
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Greg Kroah-Hartman authored
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by:
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Greg Kroah-Hartman authored
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by:
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Greg Kroah-Hartman authored
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Signed-off-by:
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Jonathan Bakker authored
The parallel port nodes should be numbered 1 and 2, not 0 and 1 for A and B respectively. The driver has always implemented 1 and 2 and the in-tree Goni DTS uses 1 as port A as well. Update the documentation to match this behaviour. Signed-off-by:
Jonathan Bakker <xc-racer2@live.ca> Reviewed-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by:
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Jonathan Bakker authored
vidioc_streamoff can be called multiple times from userspace, but we should only call media_pipeline_stop when we're actually setup. This became more noticeable after commit 2a2599c6 ("[media] media: entity: Catch unbalanced media_pipeline_stop calls") was merged as it added a WARN for unbalanced calls to media_pipeline_stop. Signed-off-by:
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Jonathan Bakker authored
This is no longer used since the conversion to DT Signed-off-by:
Tomasz Figa <tfiga@chromium.org> Reviewed-by:
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Jonathan Bakker authored
This is a no-op as it is never set and is a remnant from non-DT days that can be safely removed. Signed-off-by:
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Jonathan Bakker authored
On some devices, there may be multiple camera sensors attached to the same port. Make sure we probe all of them, not just the first one. Signed-off-by:
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Jonathan Bakker authored
Instead of keeping a local copy of how many sensors we've probed (which may not even properly represent the number of sensors probed if we have a port without a sensor), use the global num_sensors counter that has the actual number used. This will also make it easier to add support for multiple sensors being connected to the same port. Signed-off-by:
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Jonathan Bakker authored
Commit ee7160e5 ("[media] s5p-fimc: Add support for JPEG capture") added support for JPEG capture, but missed setting a register when the parallel port was used rather than the CSIS device. Signed-off-by:
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Jonathan Bakker authored
Commit bae45003 ("[media] exynos4-is: Add missing entity function initialization") tried to suppress the warnings such as s5p-fimc-md camera: Entity type for entity FIMC.0 was not initialized! However, this missed setting for the subdev. Set it now to avoid the ugly warnings on boot. Signed-off-by:
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