This patchset introduces a basic support for Digital Camera Memory Interface (DCMI) of STMicroelectronics STM32 SoC series. This first basic support implements RGB565 & YUV frame grabbing. Cropping and JPEG support will be added later on. This has been tested on STM324x9I-EVAL evaluation board embedding an OV2640 camera sensor. This driver depends on: - [PATCHv6 00/14] atmel-isi/ov7670/ov2640: convert to standalone drivers http://www.spinics.net/lists/linux-media/msg113480.html =========== = history = =========== version 5: - Fix remarks from Hans Verkuil on v4: http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg112338.html - clk_enable before subdev streamon in start_streaming - rework cleanup on error in start_streaming - typos/blank fixing - remove extra checks done by core in try_fmt - use clamp macro to check supported min/max resolution - revisit cap->card string to fit cap->card length - removed some unneeded ret variables - use of devm_reset_control_get to save reset cleanup version 4: - "v4l2-compliance -s -f" report - fix behaviour in case of start_streaming failure (DMA memory shortage for ex.) - dt-bindings: Fix remarks from Rob Herring: http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg111340.html Add "Acked-by: Rob Herring <robh@xxxxxxxxxx>" version 3: - stm32-dcmi: Add "Reviewed-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>" - dt-bindings: Fix remarks from Rob Herring: http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg110956.html version 2: - Fix a Kbuild warning in probe: http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg110678.html - Fix a warning in dcmi_queue_setup() - dt-bindings: warn on sensor signals level inversion in board example - Typos fixing version 1: - Initial submission =================== = v4l2-compliance = =================== Below is the v4l2-compliance report for this current version of the DCMI camera interface. v4l2-compliance has been built from v4l-utils-1.12.3. ~ # v4l2-compliance -s -f -d /dev/video0 v4l2-compliance SHA : f5f45e17ee98a0ebad7836ade2b34ceec909d751 Driver Info: Driver name : stm32-dcmi Card type : STM32 Digital Camera Memory Int Bus info : platform:dcmi Driver version: 4.11.0 Capabilities : 0x85200001 Video Capture Read/Write Streaming Extended Pix Format Device Capabilities Device Caps : 0x05200001 Video Capture Read/Write Streaming Extended Pix Format Compliance test for device /dev/video0 (not using libv4l2): Required ioctls: test VIDIOC_QUERYCAP: OK Allow for multiple opens: test second video open: OK test VIDIOC_QUERYCAP: OK test VIDIOC_G/S_PRIORITY: OK test for unlimited opens: OK Debug ioctls: test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported) test VIDIOC_LOG_STATUS: OK Input ioctls: test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported) test VIDIOC_G/S_FREQUENCY: OK (Not Supported) test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported) test VIDIOC_ENUMAUDIO: OK (Not Supported) test VIDIOC_G/S/ENUMINPUT: OK test VIDIOC_G/S_AUDIO: OK (Not Supported) Inputs: 1 Audio Inputs: 0 Tuners: 0 Output ioctls: test VIDIOC_G/S_MODULATOR: OK (Not Supported) test VIDIOC_G/S_FREQUENCY: OK (Not Supported) test VIDIOC_ENUMAUDOUT: OK (Not Supported) test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported) test VIDIOC_G/S_AUDOUT: OK (Not Supported) Outputs: 0 Audio Outputs: 0 Modulators: 0 Input/Output configuration ioctls: test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported) test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported) test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported) test VIDIOC_G/S_EDID: OK (Not Supported) Test input 0: Control ioctls: test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK test VIDIOC_QUERYCTRL: OK test VIDIOC_G/S_CTRL: OK test VIDIOC_G/S/TRY_EXT_CTRLS: OK test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK test VIDIOC_G/S_JPEGCOMP: OK (Not Supported) Standard Controls: 3 Private Controls: 0 Format ioctls: test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK test VIDIOC_G/S_PARM: OK (Not Supported) test VIDIOC_G_FBUF: OK (Not Supported) test VIDIOC_G_FMT: OK test VIDIOC_TRY_FMT: OK test VIDIOC_S_FMT: OK test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported) test Cropping: OK (Not Supported) test Composing: OK (Not Supported) test Scaling: OK Codec ioctls: test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported) test VIDIOC_G_ENC_INDEX: OK (Not Supported) test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported) Buffer ioctls: test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK test VIDIOC_EXPBUF: OK Test input 0: Streaming ioctls: test read/write: OK test MMAP: OK test USERPTR: OK (Not Supported) test DMABUF: Cannot test, specify --expbuf-device Stream using all formats: test MMAP for Format YUYV, Frame Size 176x144: Stride 352, Field None: OK test MMAP for Format YUYV, Frame Size 320x240: Stride 640, Field None: OK test MMAP for Format UYVY, Frame Size 176x144: Stride 352, Field None: OK test MMAP for Format UYVY, Frame Size 320x240: Stride 640, Field None: OK test MMAP for Format RGBP, Frame Size 176x144: Stride 352, Field None: OK test MMAP for Format RGBP, Frame Size 320x240: Stride 640, Field None: OK Total: 52, Succeeded: 52, Failed: 0, Warnings: 0 Hugues Fruchet (8): dt-bindings: Document STM32 DCMI bindings [media] stm32-dcmi: STM32 DCMI camera interface driver ARM: dts: stm32: Enable DCMI support on STM32F429 MCU ARM: dts: stm32: Enable DCMI camera interface on STM32F429-EVAL board ARM: dts: stm32: Enable STMPE1600 gpio expander of STM32F429-EVAL board ARM: dts: stm32: Enable OV2640 camera support of STM32F429-EVAL board ARM: configs: stm32: STMPE1600 GPIO expander ARM: configs: stm32: DCMI + OV2640 camera support .../devicetree/bindings/media/st,stm32-dcmi.txt | 46 + arch/arm/boot/dts/stm32429i-eval.dts | 56 + arch/arm/boot/dts/stm32f429.dtsi | 37 + arch/arm/configs/stm32_defconfig | 9 + drivers/media/platform/Kconfig | 12 + drivers/media/platform/Makefile | 2 + drivers/media/platform/stm32/Makefile | 1 + drivers/media/platform/stm32/stm32-dcmi.c | 1403 ++++++++++++++++++++ 8 files changed, 1566 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmi.txt create mode 100644 drivers/media/platform/stm32/Makefile create mode 100644 drivers/media/platform/stm32/stm32-dcmi.c -- 1.9.1
