summaryrefslogtreecommitdiff
path: root/drivers/media
AgeCommit message (Collapse)AuthorFilesLines
2024-10-23media: uvcvideo: Stop stream during unregisterRicardo Ribalda1-1/+31
uvc_unregister_video() can be called asynchronously from uvc_disconnect(). If the device is still streaming when that happens, a plethora of race conditions can occur. Make sure that the device has stopped streaming before exiting this function. If the user still holds handles to the driver's file descriptors, any ioctl will return -ENODEV from the v4l2 core. This change makes uvc more consistent with the rest of the v4l2 drivers using the vb2_fop_* and vb2_ioctl_* helpers. This driver (and many other usb drivers) always had this problem, but it wasn't possible to easily fix this until the vb2_video_unregister_device() helper was added. So the Fixes tag points to the creation of that helper. Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Suggested-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Fixes: f729ef5796d8 ("media: videobuf2-v4l2.c: add vb2_video_unregister_device helper function") Cc: stable@vger.kernel.org # 5.10.x [hverkuil: add note regarding Fixes version] Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: renesas: rzg2l-cru: Add 'yuv' flag to IP format structureLad Prabhakar3-5/+8
Add a 'yuv' flag to the `rzg2l_cru_ip_format` structure to indicate whether a given format is YUV-based and update the `rzg2l_cru_ip_formats` array with this flag appropriately. This change enables a more efficient way to check if the input and output formats use the same colorspace. With this change, we can eliminate the use of `v4l2_format_info()` in `rzg2l_cru_initialize_image_conv()` as the necessary details for the source and destination formats are already available through the `yuv` flag. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-24-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Move register definitions to a separate fileLad Prabhakar4-70/+82
Move the RZ/G2L CRU register definitions from `rzg2l-video.c` to a dedicated header file, `rzg2l-cru-regs.h`. Separating these definitions into their own file improves the readability of the code. Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-23-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Add support to capture 8bit raw sRGBLad Prabhakar2-0/+32
Add support to capture 8bit Bayer formats. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-22-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Refactor ICnDMR register configurationLad Prabhakar3-8/+9
Refactor the ICnDMR register configuration in `rzg2l_cru_initialize_image_conv()` by adding a new member `icndmr` in the `rzg2l_cru_ip_format` structure. Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-21-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: csi2: Use rzg2l_csi2_formats array in enum_frame_sizeLad Prabhakar1-0/+3
Make use of `rzg2l_csi2_formats` array in rzg2l_csi2_enum_frame_size() to validate if the `fse->code` is supported. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-20-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: video: Implement .link_validate() callbackLad Prabhakar1-44/+38
Implement the `.link_validate()` callback for the video node and move the format checking into this function. This change allows the removal of `rzg2l_cru_mc_validate_format()`. Note, the fmt.format.code and fmt.format.field checks have be dropped as the subdev .set_fmt() handler ensures that those fields always hold valid values. Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-19-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: csi2: Remove unused field from rzg2l_csi2_formatLad Prabhakar1-2/+1
Remove the unused `datatype` field from the `rzg2l_csi2_format` struct and update the `rzg2l_csi2_formats[]` array to reflect the updated structure. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-18-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Use `rzg2l_cru_ip_formats` array in enum_frame_sizeLad Prabhakar1-1/+1
Use the `rzg2l_cru_ip_formats` array in `rzg2l_cru_ip_enum_frame_size()` to validate the format code. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-17-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Make use of v4l2_format_info() helpersLad Prabhakar1-15/+7
Make use of v4l2_format_info() helpers to determine the input and output formats. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-16-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Inline calculating bytesperlineLad Prabhakar1-10/+6
Remove the `rzg2l_cru_format_bytesperline()` function and inline the calculation of `bytesperline` directly in `rzg2l_cru_format_align()`. This simplifies the code by removing an unnecessary function call and directly multiplying the image width by the `bpp` (bytes per pixel) from the format structure. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-15-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Simplify handling of supported formatsLad Prabhakar3-24/+37
Refactor the handling of supported formats in the RZ/G2L CRU driver by adding `pixelformat` and `bpp` members to the `rzg2l_cru_ip_format` structure. New helper functions, `rzg2l_cru_ip_format_to_fmt()` and `rzg2l_cru_ip_index_to_fmt()`, are added to retrieve format information based on 4CC format and index, respectively. These helpers allow the removal of the now redundant `rzg2l_cru_format_from_pixel()` function. The new helpers are used in `rzg2l_cru_format_bytesperline()`, `rzg2l_cru_format_align()`, and `rzg2l_cru_enum_fmt_vid_cap()`, streamlining the handling of supported formats and improving code maintainability. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-14-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Inline calculating image sizeLad Prabhakar1-6/+1
Inline the `rzg2l_cru_format_sizeimage()` function into its single caller as the function is trivial and is not expected to be called anywhere else. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-13-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Simplify configuring input format for image processingLad Prabhakar3-12/+26
Move the `rzg2l_cru_ip_format` struct to `rzg2l-cru.h` for better accessibility and add a `datatype` member to it, allowing the configuration of the ICnMC register based on the MIPI CSI2 data type. Also, move the `rzg2l_cru_ip_code_to_fmt()` function to `rzg2l-cru.h` to streamline format lookup and make it more accessible across the driver. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-12-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Remove unnecessary WARN_ON check in format funcLad Prabhakar1-3/+0
`WARN_ON(!fmt)` check in `rzg2l_cru_format_bytesperline()` is unnecessary because the `rzg2l_cru_format_align()` function ensures that a valid `pixelformat` is set before calling `rzg2l_cru_format_bytesperline()`. As a result, `rzg2l_cru_format_from_pixel()` is guaranteed to return a non-NULL value, making the check redundant. Additionally, the return type of `rzg2l_cru_format_bytesperline()` is `u32`, but the code returned `-EINVAL`, a negative value. This mismatch is now resolved by removing the invalid error return path. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-11-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Remove unused fields from rzg2l_cru_ip_format structLad Prabhakar1-3/+1
Simplified the `rzg2l_cru_ip_format` struct by removing the unused `datatype` and `bpp` fields from the structure in `rzg2l-ip.c`. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-10-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Use MIPI CSI-2 data types for ICnMC_INF definitionsLad Prabhakar1-4/+4
The INF field in the ICnMC register accepts data type codes as specified in the MIPI CSI-2 v2.1 specification. This patch introduces the `ICnMC_INF()` macro to use the MIPI CSI-2 data types, which are available in the `media/mipi-csi2.h` header. Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-9-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Remove `channel` member from `struct rzg2l_cru_csi`Lad Prabhakar3-8/+8
Remove the CSI virtual channel number from `struct rzg2l_cru_csi`. Instead, pass the CSI virtual channel number as an argument to `rzg2l_cru_csi2_setup()`. Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-8-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Retrieve virtual channel informationLad Prabhakar3-5/+39
The RZ/G2L CRU needs to configure the ICnMC.VCSEL bits to specify which virtual channel should be processed from the four available VCs. To retrieve this information from the connected subdevice, the .get_frame_desc() function is called. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-7-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: csi2: Implement .get_frame_desc()Lad Prabhakar1-0/+20
The RZ/G2L CRU requires information about which VCx to process data from, among the four available VCs. To obtain this information, the .get_frame_desc() routine is implemented. This routine, in turn, calls .get_frame_desc() on the remote sensor connected to the CSI2 bridge. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-6-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: csi2: Use ARRAY_SIZE() in media_entity_pads_init()Lad Prabhakar1-1/+2
The media_entity_pads_init() function was previously hardcoded to use a magic number for the number of pads. Replace the magic number with the ARRAY_SIZE() macro to determine the number of pads dynamically. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-5-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: csi2: Mark sink and source pad with MUST_CONNECT flagLad Prabhakar1-2/+4
Mark the sink and source pad with the MEDIA_PAD_FL_MUST_CONNECT flag to ensure pipeline validation fails if it is not connected. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Mark sink and source pad with MUST_CONNECT flagLad Prabhakar2-3/+5
Mark the sink and source pad with the MEDIA_PAD_FL_MUST_CONNECT flag to ensure pipeline validation fails if it is not connected. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: rzg2l-cru: Use RZG2L_CRU_IP_SINK/SOURCE enum entriesLad Prabhakar1-2/+2
Use enum values (`RZG2L_CRU_IP_SINK` and `RZG2L_CRU_IP_SOURCE`) instead of hardcoded array indices. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Link: https://lore.kernel.org/r/20241018133446.223516-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-22media: platform: rzg2l-cru: rzg2l-video: Set AXI burst max lengthBiju Das1-0/+11
As per the hardware manual section 35.2.3.26 'AXI Master Transfer Setting Register for CRU Image Data', it is mentioned that to improve the transfer performance of CRU, it is recommended to use AXILEN value '0xf' for AXI burst max length setting for image data. Signed-off-by: Hien Huynh <hien.huynh.px@renesas.com> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20240905111828.159670-1-biju.das.jz@bp.renesas.com Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-18media: pulse8-cec: fix data timestamp at pulse8_setup()Mauro Carvalho Chehab1-1/+1
As pointed by Coverity, there is a hidden overflow condition there. As date is signed and u8 is unsigned, doing: date = (data[0] << 24) With a value bigger than 07f will make all upper bits of date 0xffffffff. This can be demonstrated with this small code: <code> typedef int64_t time64_t; typedef uint8_t u8; int main(void) { u8 data[] = { 0xde ,0xad , 0xbe, 0xef }; time64_t date; date = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3]; printf("Invalid data = 0x%08lx\n", date); date = ((unsigned)data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3]; printf("Expected data = 0x%08lx\n", date); return 0; } </code> Fix it by converting the upper bit calculation to unsigned. Fixes: cea28e7a55e7 ("media: pulse8-cec: reorganize function order") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: cec: extron-da-hd-4k-plus: don't use -1 as an error codeMauro Carvalho Chehab1-3/+3
The logic at get_edid_tag_location() returns either an offset or an error condition. However, the error condition uses a non-standard "-1" value. This hits a Coverity bug, as Coverity assumes that positive values are underflow. While this is a false positive, returning error codes as -1 is an issue. So, instead, use -ENOENT to indicate that the tag was not found. Fixes: 056f2821b631 ("media: cec: extron-da-hd-4k-plus: add the Extron DA HD 4K Plus CEC driver") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: stb0899_algo: initialize cfr before using itMauro Carvalho Chehab1-1/+1
The loop at stb0899_search_carrier() starts with a random value for cfr, as reported by Coverity. Initialize it to zero, just like stb0899_dvbs_algo() to ensure that carrier search won't bail out. Fixes: 8bd135bab91f ("V4L/DVB (9375): Add STB0899 support") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: adv7604: prevent underflow condition when reporting colorspaceMauro Carvalho Chehab1-9/+17
Currently, adv76xx_log_status() reads some date using io_read() which may return negative values. The current logic doesn't check such errors, causing colorspace to be reported on a wrong way at adv76xx_log_status(), as reported by Coverity. If I/O error happens there, print a different message, instead of reporting bogus messages to userspace. Fixes: 54450f591c99 ("[media] adv7604: driver for the Analog Devices ADV7604 video decoder") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
2024-10-18media: cx24116: prevent overflows on SNR calculusMauro Carvalho Chehab1-1/+6
as reported by Coverity, if reading SNR registers fail, a negative number will be returned, causing an underflow when reading SNR registers. Prevent that. Fixes: 8953db793d5b ("V4L/DVB (9178): cx24116: Add module parameter to return SNR as ESNO.") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: ar0521: don't overflow when checking PLL valuesMauro Carvalho Chehab1-2/+2
The PLL checks are comparing 64 bit integers with 32 bit ones, as reported by Coverity. Depending on the values of the variables, this may underflow. Fix it ensuring that both sides of the expression are u64. Fixes: 852b50aeed15 ("media: On Semi AR0521 sensor driver") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2024-10-18media: s5p-jpeg: prevent buffer overflowsMauro Carvalho Chehab1-6/+11
The current logic allows word to be less than 2. If this happens, there will be buffer overflows, as reported by smatch. Add extra checks to prevent it. While here, remove an unused word = 0 assignment. Fixes: 6c96dbbc2aa9 ("[media] s5p-jpeg: add support for 5433") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2024-10-18media: mgb4: protect driver against spectreMauro Carvalho Chehab1-0/+2
Frequency range is set from sysfs via frequency_range_store(), being vulnerable to spectre, as reported by smatch: drivers/media/pci/mgb4/mgb4_cmt.c:231 mgb4_cmt_set_vin_freq_range() warn: potential spectre issue 'cmt_vals_in' [r] drivers/media/pci/mgb4/mgb4_cmt.c:238 mgb4_cmt_set_vin_freq_range() warn: possible spectre second half. 'reg_set' Fix it. Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Martin Tůma <martin.tuma@digiteqautomotive.com>
2024-10-18media: dvb_frontend: don't play tricks with underflow valuesMauro Carvalho Chehab1-2/+2
fepriv->auto_sub_step is unsigned. Setting it to -1 is just a trick to avoid calling continue, as reported by Coverity. It relies to have this code just afterwards: if (!ready) fepriv->auto_sub_step++; Simplify the code by simply setting it to zero and use continue to return to the while loop. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: dvbdev: prevent the risk of out of memory accessMauro Carvalho Chehab1-2/+15
The dvbdev contains a static variable used to store dvb minors. The behavior of it depends if CONFIG_DVB_DYNAMIC_MINORS is set or not. When not set, dvb_register_device() won't check for boundaries, as it will rely that a previous call to dvb_register_adapter() would already be enforcing it. On a similar way, dvb_device_open() uses the assumption that the register functions already did the needed checks. This can be fragile if some device ends using different calls. This also generate warnings on static check analysers like Coverity. So, add explicit guards to prevent potential risk of OOM issues. Fixes: 5dd3f3071070 ("V4L/DVB (9361): Dynamic DVB minor allocation") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: v4l2-tpg: prevent the risk of a division by zeroMauro Carvalho Chehab1-0/+3
As reported by Coverity, the logic at tpg_precalculate_line() blindly rescales the buffer even when scaled_witdh is equal to zero. If this ever happens, this will cause a division by zero. Instead, add a WARN_ON_ONCE() to trigger such cases and return without doing any precalculation. Fixes: 63881df94d3e ("[media] vivid: add the Test Pattern Generator") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-18media: v4l2-ctrls-api: fix error handling for v4l2_g_ctrl()Mauro Carvalho Chehab1-6/+11
As detected by Coverity, the error check logic at get_ctrl() is broken: if ptr_to_user() fails to fill a control due to an error, no errors are returned and v4l2_g_ctrl() returns success on a failed operation, which may cause applications to fail. Add an error check at get_ctrl() and ensure that it will be returned to userspace without filling the control value if get_ctrl() fails. Fixes: 71c689dc2e73 ("media: v4l2-ctrls: split up into four source files") Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: platform: video-mux: Fix mutex lockingPaul Elder1-3/+3
The current order of locking between the driver mutex and the v4l2 subdev state lock causes a circular locking dependency when trying to set up a link. Fix this. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [Sakari Ailus: Fix spelling in commit message.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: ipu6: remove redundant dependency in KconfigBingbu Cao1-1/+1
IPU6 driver simply depends on X86, X86 and 64BIT cover the X86_64, redundant X86_64 dependency in Kconfig could be removed. Fixes: c70281cc83d6 ("media: intel/ipu6: add Kconfig and Makefile") Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: ipu6: fix the wrong type casting and 64-bit divisionBingbu Cao7-17/+18
This patch fixes the build errors with `i386-allmodconfig`, the errors are caused by wrong type casting and 64-bit division. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16v4l2-subdev: Return -EOPNOTSUPP for unsupported pad type in ↵Lad Prabhakar1-0/+5
call_get_frame_desc() The `get_frame_desc()` operation should always be called on a source pad, which is indicated by the `MEDIA_PAD_FL_SOURCE` flag. This patch adds a check in `call_get_frame_desc()` to ensure that the `MEDIA_PAD_FL_SOURCE` flag is set for the pad before invoking `get_frame_desc()`. If the pad is not a source pad, the function will return an `-EOPNOTSUPP` error, signaling that the operation is not supported on non-source pads. Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: i2c: ds90ub960: Fix missing return check on ub960_rxport_read callColin Ian King1-1/+1
The function ub960_rxport_read is being called and afterwards ret is being checked for any failures, however ret is not being assigned to the return of the function call. Fix this by assigning ret to the return of the call which appears to be missing. Fixes: afe267f2d368 ("media: i2c: add DS90UB960 driver") Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: platform: rzg2l-cru: rzg2l-video: Move request_irq() to probe()Biju Das3-21/+13
Move request_irq() to probe(), in order to avoid requesting IRQ during device start which happens frequently. As this function is in probe(), it is better to replace it with its devm variant for managing the resource efficiently. While at it, drop the IRQF_SHARED flag as currently there is a single user for this IRQ. Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: i2c: vgxy61: Fix an error handling path in vgxy61_detect()Christophe JAILLET1-1/+1
If cci_read() fails, 'st' is set to 0 in cci_read(), so we return success, instead of the expected error code. Fix it and return the expected error. Fixes: 9a6d7f2ba2b9 ("media: i2c: st-vgxy61: Convert to CCI register access helpers") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: raspberrypi: Add support for RP1-CFETomi Valkeinen14-0/+4645
Add support for Raspberry Pi CFE. The CFE is a hardware block that contains: - MIPI D-PHY - MIPI CSI-2 receiver - Front End ISP (FE) The driver has been upported from the Raspberry Pi kernel commit 88a681df9623 ("ARM: dts: bcm2712-rpi: Add i2c<n>_pins labels"). Co-developed-by: Naushir Patuck <naush@raspberrypi.com> Signed-off-by: Naushir Patuck <naush@raspberrypi.com> 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+huawei@kernel.org>
2024-10-16media: uapi: Add meta formats for PiSP FE config and statsTomi Valkeinen1-0/+2
Add two meta formats for PiSP FE: V4L2_META_FMT_RPI_FE_CFG and V4L2_META_FMT_RPI_FE_STATS. The former is used to provide configuration for the FE and the latter is used to read the statistics from the FE. 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+huawei@kernel.org>
2024-10-16media: rcar-vin: Add support for RAW10Niklas Söderlund4-1/+77
Some R-Car SoCs are capable of capturing RAW10. Extend the format enumeration, validation and setup to expose and configure for this format if the particular device supports it. The VIN is usually capable of converting from most media bus formats to a range of different pixel formats. However if the input media bus format is a RAW10 format this is not possible so the corresponding pixel output format is forced. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: rcar-isp: Add family compatible for R-Car Gen4 familyNiklas Söderlund1-1/+3
Add the Gen4 family compatible. This will be used instead of a SoC specific compatible for the new Gen4 SoC V4M. Two Gen4 boards (V3U and V4H) have already been added prior and their bindings need to be kept for backward compatibility. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: rcar-csi2: Add support for R-Car V4MNiklas Söderlund1-0/+294
The V4M is the second Gen4 device that is enabled in the rcar-csi2 driver. There is much overlap with the already supported V4H device. The registers that where new on Gen4 and where added with the V4H prefix are retained and only new registers unique to the V4M are added with the new V4M prefix. This follows the style for when V4H was added which had an overlap with Gen3 registers. The V4M CSI-2 receiver supports D-PHY mode only, either in 1-, 2- or 4-lane configuration. The datasheets do not document lane swapping and is left out for now. While the V4M only supports D-PHY the configuration for it is added in such a way that it can be reused for V4H which supports both C-PHY and D-PHY. No known SoC exists to test the D-PHY configuration on V4H so it's not wired-up. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-10-16media: rcar-csi2: Add documentation for PHY_EN and PHY_MODE registersNiklas Söderlund1-2/+12
Later datasheets add documentation for two magic value used for V4H support. The same registers will also be used for V4M support, document them. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-24 12:57:31 +0300