forked from Minki/linux
2c42cdbaec
Here's the driver for the Renesas R-Car JPEG processing unit. The driver is implemented within the V4L2 framework as a memory-to-memory device. It presents two video nodes to userspace, one for the encoding part, and one for the decoding part. It was found that the only working mode for encoding is no markers output, so we generate markers with software. In the current version of driver we also use software JPEG header parsing because with hardware parsing performance is lower than desired. >From a userspace point of view the process is typical (S_FMT, REQBUF, optionally QUERYBUF, QBUF, STREAMON, DQBUF) for both the source and destination queues. STREAMON can return -EINVAL in case of mismatch of output and capture queues format. Also during decoding driver can return buffers if queued buffer with JPEG image contains image with inappropriate subsampling (e.g. 4:2:0 in JPEG and 4:2:2 in capture). If JPEG image and queue format dimensions differ driver will return buffer on QBUF with VB2_BUF_STATE_ERROR flag. During encoding the available formats are: V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_NV12, V4L2_PIX_FMT_NV16, V4L2_PIX_FMT_NV16M for source and V4L2_PIX_FMT_JPEG for destination. During decoding the available formats are: V4L2_PIX_FMT_JPEG for source and V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_NV16M, V4L2_PIX_FMT_NV12, V4L2_PIX_FMT_NV16 for destination. Performance of current version: 1280x800 NV12 image encoding/decoding decoding ~122 FPS encoding ~191 FPS Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
295 lines
8.3 KiB
Plaintext
295 lines
8.3 KiB
Plaintext
#
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# Platform drivers
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# All drivers here are currently for webcam support
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menuconfig V4L_PLATFORM_DRIVERS
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bool "V4L platform devices"
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depends on MEDIA_CAMERA_SUPPORT
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default n
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---help---
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Say Y here to enable support for platform-specific V4L drivers.
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if V4L_PLATFORM_DRIVERS
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source "drivers/media/platform/marvell-ccic/Kconfig"
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config VIDEO_VIA_CAMERA
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tristate "VIAFB camera controller support"
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depends on FB_VIA
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select VIDEOBUF_DMA_SG
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select VIDEO_OV7670
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help
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Driver support for the integrated camera controller in VIA
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Chrome9 chipsets. Currently only tested on OLPC xo-1.5 systems
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with ov7670 sensors.
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#
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# Platform multimedia device configuration
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#
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source "drivers/media/platform/davinci/Kconfig"
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source "drivers/media/platform/omap/Kconfig"
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source "drivers/media/platform/blackfin/Kconfig"
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config VIDEO_SH_VOU
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tristate "SuperH VOU video output driver"
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depends on MEDIA_CAMERA_SUPPORT
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depends on VIDEO_DEV && I2C && HAS_DMA
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depends on ARCH_SHMOBILE || COMPILE_TEST
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select VIDEOBUF_DMA_CONTIG
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help
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Support for the Video Output Unit (VOU) on SuperH SoCs.
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config VIDEO_VIU
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tristate "Freescale VIU Video Driver"
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depends on VIDEO_V4L2 && PPC_MPC512x
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select VIDEOBUF_DMA_CONTIG
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default y
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---help---
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Support for Freescale VIU video driver. This device captures
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video data, or overlays video on DIU frame buffer.
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Say Y here if you want to enable VIU device on MPC5121e Rev2+.
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In doubt, say N.
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config VIDEO_TIMBERDALE
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tristate "Support for timberdale Video In/LogiWIN"
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depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && HAS_DMA
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depends on (MFD_TIMBERDALE && TIMB_DMA) || COMPILE_TEST
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select VIDEO_ADV7180
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select VIDEOBUF_DMA_CONTIG
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---help---
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Add support for the Video In peripherial of the timberdale FPGA.
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config VIDEO_M32R_AR
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tristate "AR devices"
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depends on VIDEO_V4L2
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depends on M32R || COMPILE_TEST
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---help---
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This is a video4linux driver for the Renesas AR (Artificial Retina)
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camera module.
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config VIDEO_M32R_AR_M64278
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tristate "AR device with color module M64278(VGA)"
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depends on PLAT_M32700UT
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select VIDEO_M32R_AR
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---help---
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This is a video4linux driver for the Renesas AR (Artificial
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Retina) with M64278E-800 camera module.
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This module supports VGA(640x480 pixels) resolutions.
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To compile this driver as a module, choose M here: the
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module will be called arv.
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config VIDEO_OMAP3
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tristate "OMAP 3 Camera support"
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depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3
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depends on HAS_DMA
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depends on OMAP_IOMMU
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select ARM_DMA_USE_IOMMU
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select VIDEOBUF2_DMA_CONTIG
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select MFD_SYSCON
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---help---
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Driver for an OMAP 3 camera controller.
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config VIDEO_OMAP3_DEBUG
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bool "OMAP 3 Camera debug messages"
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depends on VIDEO_OMAP3
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---help---
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Enable debug messages on OMAP 3 camera controller driver.
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config VIDEO_S3C_CAMIF
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tristate "Samsung S3C24XX/S3C64XX SoC Camera Interface driver"
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depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
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depends on PM
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depends on ARCH_S3C64XX || PLAT_S3C24XX || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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---help---
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This is a v4l2 driver for s3c24xx and s3c64xx SoC series camera
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host interface (CAMIF).
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To compile this driver as a module, choose M here: the module
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will be called s3c-camif.
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source "drivers/media/platform/soc_camera/Kconfig"
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source "drivers/media/platform/exynos4-is/Kconfig"
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source "drivers/media/platform/s5p-tv/Kconfig"
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source "drivers/media/platform/am437x/Kconfig"
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source "drivers/media/platform/xilinx/Kconfig"
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endif # V4L_PLATFORM_DRIVERS
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menuconfig V4L_MEM2MEM_DRIVERS
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bool "Memory-to-memory multimedia devices"
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depends on VIDEO_V4L2
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depends on MEDIA_CAMERA_SUPPORT
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default n
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---help---
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Say Y here to enable selecting drivers for V4L devices that
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use system memory for both source and destination buffers, as opposed
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to capture and output drivers, which use memory buffers for just
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one of those.
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if V4L_MEM2MEM_DRIVERS
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config VIDEO_CODA
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tristate "Chips&Media Coda multi-standard codec IP"
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depends on VIDEO_DEV && VIDEO_V4L2 && ARCH_MXC
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depends on HAS_DMA
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select SRAM
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select VIDEOBUF2_DMA_CONTIG
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select VIDEOBUF2_VMALLOC
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select V4L2_MEM2MEM_DEV
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select GENERIC_ALLOCATOR
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---help---
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Coda is a range of video codec IPs that supports
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H.264, MPEG-4, and other video formats.
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config VIDEO_MEM2MEM_DEINTERLACE
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tristate "Deinterlace support"
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depends on VIDEO_DEV && VIDEO_V4L2 && DMA_ENGINE
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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help
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Generic deinterlacing V4L2 driver.
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config VIDEO_SAMSUNG_S5P_G2D
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tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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default n
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---help---
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This is a v4l2 driver for Samsung S5P and EXYNOS4 G2D
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2d graphics accelerator.
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config VIDEO_SAMSUNG_S5P_JPEG
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tristate "Samsung S5P/Exynos3250/Exynos4 JPEG codec driver"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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---help---
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This is a v4l2 driver for Samsung S5P, EXYNOS3250
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and EXYNOS4 JPEG codec
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config VIDEO_SAMSUNG_S5P_MFC
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tristate "Samsung S5P MFC Video Codec"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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default n
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help
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MFC 5.1 and 6.x driver for V4L2
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config VIDEO_MX2_EMMAPRP
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tristate "MX2 eMMa-PrP support"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on SOC_IMX27 || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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help
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MX2X chips have a PrP that can be used to process buffers from
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memory to memory. Operations include resizing and format
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conversion.
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config VIDEO_SAMSUNG_EXYNOS_GSC
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tristate "Samsung Exynos G-Scaler driver"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on ARCH_EXYNOS5 || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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help
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This is a v4l2 driver for Samsung EXYNOS5 SoC G-Scaler.
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config VIDEO_STI_BDISP
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tristate "STMicroelectronics BDISP 2D blitter driver"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on ARCH_STI || COMPILE_TEST
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depends on HAVE_DMA_ATTRS
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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help
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This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.
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config VIDEO_SH_VEU
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tristate "SuperH VEU mem2mem video processing driver"
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depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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help
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Support for the Video Engine Unit (VEU) on SuperH and
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SH-Mobile SoCs.
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config VIDEO_RENESAS_JPU
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tristate "Renesas JPEG Processing Unit"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on ARCH_SHMOBILE || COMPILE_TEST
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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---help---
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This is a V4L2 driver for the Renesas JPEG Processing Unit.
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To compile this driver as a module, choose M here: the module
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will be called rcar_jpu.
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config VIDEO_RENESAS_VSP1
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tristate "Renesas VSP1 Video Processing Engine"
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depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
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depends on (ARCH_SHMOBILE && OF) || COMPILE_TEST
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select VIDEOBUF2_DMA_CONTIG
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---help---
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This is a V4L2 driver for the Renesas VSP1 video processing engine.
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To compile this driver as a module, choose M here: the module
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will be called vsp1.
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config VIDEO_TI_VPE
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tristate "TI VPE (Video Processing Engine) driver"
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depends on VIDEO_DEV && VIDEO_V4L2
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depends on SOC_DRA7XX || COMPILE_TEST
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depends on HAS_DMA
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select VIDEOBUF2_DMA_CONTIG
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select V4L2_MEM2MEM_DEV
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default n
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---help---
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Support for the TI VPE(Video Processing Engine) block
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found on DRA7XX SoC.
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config VIDEO_TI_VPE_DEBUG
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bool "VPE debug messages"
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depends on VIDEO_TI_VPE
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---help---
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Enable debug messages on VPE driver.
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endif # V4L_MEM2MEM_DRIVERS
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menuconfig V4L_TEST_DRIVERS
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bool "Media test drivers"
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depends on MEDIA_CAMERA_SUPPORT
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if V4L_TEST_DRIVERS
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source "drivers/media/platform/vivid/Kconfig"
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config VIDEO_VIM2M
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tristate "Virtual Memory-to-Memory Driver"
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depends on VIDEO_DEV && VIDEO_V4L2
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select VIDEOBUF2_VMALLOC
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select V4L2_MEM2MEM_DEV
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default n
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---help---
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This is a virtual test device for the memory-to-memory driver
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framework.
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endif #V4L_TEST_DRIVERS
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