| Message ID | 20220823151805.1313-1-martin.tuma@digiteqautomotive.com |
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From: martin.tuma@digiteqautomotive.com
To: linux-media@vger.kernel.org
Cc: =?utf-8?q?Martin_T=C5=AFma?= <martin.tuma@digiteqautomotive.com>
Subject: [PATCH 0/3] Digiteq Automotive MGB4 driver (fixed)
Date: Tue, 23 Aug 2022 17:18:02 +0200
Message-Id: <20220823151805.1313-1-martin.tuma@digiteqautomotive.com>
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| Series |
Digiteq Automotive MGB4 driver (fixed)
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From: Martin Tůma <martin.tuma@digiteqautomotive.com> Hi, This series of patches adds a driver for the Digiteq Automotive MGB4 grabber card. MGB4 is a modular frame grabber PCIe card for automotive video interfaces (FPD-Link and GMSL for now). It is based on a Xilinx FPGA and uses their XDMA IP core for DMA transfers. Additionally, Xilinx I2C and SPI IP cores which already have drivers in linux are used in the design. Except of the required xiic driver alias, the patches are split into two parts: the XDMA driver and a "standard" v4l2 device driver. The XDMA driver is based on Xilinx's sample code (https://github.com/Xilinx/dma_ip_drivers) with minor modifications making it usable for further FPGA-based PCIe cards. The driver was put under DMA clients in the tree, but I'm really not sure here, if that is ok and if the driver is "good enaugh" as it is... The rest is a quite standard v4l2 driver, with one exception - there are a lot of sysfs options that may/must be set before opening the v4l2 device to adapt the card on a specific signal (see mgb4-sysfs.rst for details) as the card must be able to work with various signal sources (or displays) that can not be auto-detected. I have run the driver through the v4l2-compliance test suite for both the input and the output and the results look fine to me (I can provide the output if required). This version fixes the compile warnings detected by the kernel test robot. Martin Tůma, Digiteq Automotive Martin Tůma (3): Added platform module alias for the xiic I2C driver Added Xilinx PCIe DMA IP core driver Added Digiteq Automotive MGB4 driver Documentation/admin-guide/media/mgb4-iio.rst | 30 + Documentation/admin-guide/media/mgb4-mtd.rst | 16 + .../admin-guide/media/mgb4-sysfs.rst | 297 ++ drivers/dma/Kconfig | 7 + drivers/dma/xilinx/Makefile | 2 + drivers/dma/xilinx/xdma_core.c | 3840 +++++++++++++++++ drivers/dma/xilinx/xdma_core.h | 588 +++ drivers/dma/xilinx/xdma_thread.c | 309 ++ drivers/dma/xilinx/xdma_thread.h | 134 + drivers/dma/xilinx/xdma_version.h | 23 + drivers/i2c/busses/i2c-xiic.c | 1 + drivers/media/pci/Kconfig | 1 + drivers/media/pci/Makefile | 1 + drivers/media/pci/mgb4/Kconfig | 17 + drivers/media/pci/mgb4/Makefile | 6 + drivers/media/pci/mgb4/mgb4_cmt.c | 243 ++ drivers/media/pci/mgb4/mgb4_cmt.h | 16 + drivers/media/pci/mgb4/mgb4_core.c | 512 +++ drivers/media/pci/mgb4/mgb4_core.h | 49 + drivers/media/pci/mgb4/mgb4_i2c.c | 139 + drivers/media/pci/mgb4/mgb4_i2c.h | 35 + drivers/media/pci/mgb4/mgb4_io.h | 36 + drivers/media/pci/mgb4/mgb4_regs.c | 30 + drivers/media/pci/mgb4/mgb4_regs.h | 35 + drivers/media/pci/mgb4/mgb4_sysfs.h | 18 + drivers/media/pci/mgb4/mgb4_sysfs_in.c | 750 ++++ drivers/media/pci/mgb4/mgb4_sysfs_out.c | 734 ++++ drivers/media/pci/mgb4/mgb4_sysfs_pci.c | 83 + drivers/media/pci/mgb4/mgb4_trigger.c | 200 + drivers/media/pci/mgb4/mgb4_trigger.h | 8 + drivers/media/pci/mgb4/mgb4_vin.c | 649 +++ drivers/media/pci/mgb4/mgb4_vin.h | 64 + drivers/media/pci/mgb4/mgb4_vout.c | 496 +++ drivers/media/pci/mgb4/mgb4_vout.h | 58 + include/linux/dma/xilinx_xdma.h | 91 + 35 files changed, 9518 insertions(+) create mode 100644 Documentation/admin-guide/media/mgb4-iio.rst create mode 100644 Documentation/admin-guide/media/mgb4-mtd.rst create mode 100644 Documentation/admin-guide/media/mgb4-sysfs.rst create mode 100644 drivers/dma/xilinx/xdma_core.c create mode 100644 drivers/dma/xilinx/xdma_core.h create mode 100644 drivers/dma/xilinx/xdma_thread.c create mode 100644 drivers/dma/xilinx/xdma_thread.h create mode 100644 drivers/dma/xilinx/xdma_version.h create mode 100644 drivers/media/pci/mgb4/Kconfig create mode 100644 drivers/media/pci/mgb4/Makefile create mode 100644 drivers/media/pci/mgb4/mgb4_cmt.c create mode 100644 drivers/media/pci/mgb4/mgb4_cmt.h create mode 100644 drivers/media/pci/mgb4/mgb4_core.c create mode 100644 drivers/media/pci/mgb4/mgb4_core.h create mode 100644 drivers/media/pci/mgb4/mgb4_i2c.c create mode 100644 drivers/media/pci/mgb4/mgb4_i2c.h create mode 100644 drivers/media/pci/mgb4/mgb4_io.h create mode 100644 drivers/media/pci/mgb4/mgb4_regs.c create mode 100644 drivers/media/pci/mgb4/mgb4_regs.h create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs.h create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs_in.c create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs_out.c create mode 100644 drivers/media/pci/mgb4/mgb4_sysfs_pci.c create mode 100644 drivers/media/pci/mgb4/mgb4_trigger.c create mode 100644 drivers/media/pci/mgb4/mgb4_trigger.h create mode 100644 drivers/media/pci/mgb4/mgb4_vin.c create mode 100644 drivers/media/pci/mgb4/mgb4_vin.h create mode 100644 drivers/media/pci/mgb4/mgb4_vout.c create mode 100644 drivers/media/pci/mgb4/mgb4_vout.h create mode 100644 include/linux/dma/xilinx_xdma.h