[PATCH v3] media: add a VEU MEM2MEM format conversion and scaling driver
Video Engine Unit (VEU) is an IP block, found in multiple SuperH and ARM- based sh-mobile and r-mobile SoCs, capable of processing video data. It can perform colour-space conversion, scaling and several filtering transformations. This patch adds an initial implementation of a mem2mem V4L2 driver for VEU. So far only conversion from NV12 to RGB565 is supported. Further functionality shall be added in the future. This driver is based on a VEU vidix driver by Magnus Damm. Signed-off-by: Guennadi Liakhovetski g.liakhovet...@gmx.de --- v3: - compliance test is now happy apart from 2 warnings - CREATE_BUFS not implemented - replaced EPERM with EBUSY - use the device instance object as queue private data instead of a random first opening file private data - S_FMT doesn't promote the caller to a stream owner drivers/media/platform/Kconfig |9 + drivers/media/platform/Makefile |2 + drivers/media/platform/sh_veu.c | 1306 +++ 3 files changed, 1317 insertions(+), 0 deletions(-) create mode 100644 drivers/media/platform/sh_veu.c diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index f588d62..6f08746 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -190,6 +190,15 @@ config VIDEO_SAMSUNG_EXYNOS_GSC help This is a v4l2 driver for Samsung EXYNOS5 SoC G-Scaler. +config VIDEO_SH_VEU + tristate SuperH VEU mem2mem video processing driver + depends on VIDEO_DEV VIDEO_V4L2 + select VIDEOBUF2_DMA_CONTIG + select V4L2_MEM2MEM_DEV + help + Support for the Video Engine Unit (VEU) on SuperH and + SH-Mobile SoCs. + endif # V4L_MEM2MEM_DRIVERS menuconfig V4L_TEST_DRIVERS diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile index baaa550..46669f6 100644 --- a/drivers/media/platform/Makefile +++ b/drivers/media/platform/Makefile @@ -27,6 +27,8 @@ obj-$(CONFIG_VIDEO_CODA) += coda.o obj-$(CONFIG_VIDEO_MEM2MEM_DEINTERLACE)+= m2m-deinterlace.o +obj-$(CONFIG_VIDEO_SH_VEU) += sh_veu.o + obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) += s5p-fimc/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) += s5p-jpeg/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_MFC)+= s5p-mfc/ diff --git a/drivers/media/platform/sh_veu.c b/drivers/media/platform/sh_veu.c new file mode 100644 index 000..dbb773b --- /dev/null +++ b/drivers/media/platform/sh_veu.c @@ -0,0 +1,1306 @@ +/* + * sh-mobile VEU mem2mem driver + * + * Copyright (C) 2012 Renesas Electronics Corporation + * Author: Guennadi Liakhovetski, g.liakhovet...@gmx.de + * Copyright (C) 2008 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License as + * published by the Free Software Foundation + */ + +#include linux/fs.h +#include linux/kernel.h +#include linux/module.h +#include linux/interrupt.h +#include linux/io.h +#include linux/platform_device.h +#include linux/pm_runtime.h +#include linux/slab.h +#include linux/types.h +#include linux/videodev2.h + +#include media/v4l2-dev.h +#include media/v4l2-device.h +#include media/v4l2-ioctl.h +#include media/v4l2-mem2mem.h +#include media/videobuf2-dma-contig.h + +#define VEU_STR 0x00 /* start register */ +#define VEU_SWR 0x10 /* src: line length */ +#define VEU_SSR 0x14 /* src: image size */ +#define VEU_SAYR 0x18 /* src: y/rgb plane address */ +#define VEU_SACR 0x1c /* src: c plane address */ +#define VEU_BSSR 0x20 /* bundle mode register */ +#define VEU_EDWR 0x30 /* dst: line length */ +#define VEU_DAYR 0x34 /* dst: y/rgb plane address */ +#define VEU_DACR 0x38 /* dst: c plane address */ +#define VEU_TRCR 0x50 /* transform control */ +#define VEU_RFCR 0x54 /* resize scale */ +#define VEU_RFSR 0x58 /* resize clip */ +#define VEU_ENHR 0x5c /* enhance */ +#define VEU_FMCR 0x70 /* filter mode */ +#define VEU_VTCR 0x74 /* lowpass vertical */ +#define VEU_HTCR 0x78 /* lowpass horizontal */ +#define VEU_APCR 0x80 /* color match */ +#define VEU_ECCR 0x84 /* color replace */ +#define VEU_AFXR 0x90 /* fixed mode */ +#define VEU_SWPR 0x94 /* swap */ +#define VEU_EIER 0xa0 /* interrupt mask */ +#define VEU_EVTR 0xa4 /* interrupt event */ +#define VEU_STAR 0xb0 /* status */ +#define VEU_BSRR 0xb4 /* reset */ + +#define VEU_MCR00 0x200 /* color conversion matrix coefficient 00 */ +#define VEU_MCR01 0x204 /* color conversion matrix coefficient 01 */ +#define VEU_MCR02 0x208 /* color conversion matrix coefficient 02 */ +#define VEU_MCR10 0x20c /* color conversion matrix coefficient 10 */ +#define VEU_MCR11 0x210 /* color conversion matrix coefficient 11 */ +#define VEU_MCR12 0x214 /* color conversion matrix coefficient 12 */ +#define VEU_MCR20 0x218 /* color conversion matrix coefficient 20 */ +#define VEU_MCR21 0x21c /* color conversion matrix coefficient 21 */ +#define VEU_MCR22 0x220 /* color conversion matrix coefficient 22 */
Re: [PATCH v3] media: add a VEU MEM2MEM format conversion and scaling driver
Hi Guennadi, A few more small comments... On Fri October 5 2012 11:16:06 Guennadi Liakhovetski wrote: Video Engine Unit (VEU) is an IP block, found in multiple SuperH and ARM- based sh-mobile and r-mobile SoCs, capable of processing video data. It can perform colour-space conversion, scaling and several filtering transformations. This patch adds an initial implementation of a mem2mem V4L2 driver for VEU. So far only conversion from NV12 to RGB565 is supported. Further functionality shall be added in the future. This driver is based on a VEU vidix driver by Magnus Damm. Signed-off-by: Guennadi Liakhovetski g.liakhovet...@gmx.de --- v3: - compliance test is now happy apart from 2 warnings - CREATE_BUFS not implemented - replaced EPERM with EBUSY - use the device instance object as queue private data instead of a random first opening file private data - S_FMT doesn't promote the caller to a stream owner drivers/media/platform/Kconfig |9 + drivers/media/platform/Makefile |2 + drivers/media/platform/sh_veu.c | 1306 +++ 3 files changed, 1317 insertions(+), 0 deletions(-) create mode 100644 drivers/media/platform/sh_veu.c diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index f588d62..6f08746 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -190,6 +190,15 @@ config VIDEO_SAMSUNG_EXYNOS_GSC help This is a v4l2 driver for Samsung EXYNOS5 SoC G-Scaler. +config VIDEO_SH_VEU + tristate SuperH VEU mem2mem video processing driver + depends on VIDEO_DEV VIDEO_V4L2 + select VIDEOBUF2_DMA_CONTIG + select V4L2_MEM2MEM_DEV + help + Support for the Video Engine Unit (VEU) on SuperH and + SH-Mobile SoCs. + endif # V4L_MEM2MEM_DRIVERS menuconfig V4L_TEST_DRIVERS diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile index baaa550..46669f6 100644 --- a/drivers/media/platform/Makefile +++ b/drivers/media/platform/Makefile @@ -27,6 +27,8 @@ obj-$(CONFIG_VIDEO_CODA)+= coda.o obj-$(CONFIG_VIDEO_MEM2MEM_DEINTERLACE) += m2m-deinterlace.o +obj-$(CONFIG_VIDEO_SH_VEU) += sh_veu.o + obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) += s5p-fimc/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) += s5p-jpeg/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_MFC) += s5p-mfc/ diff --git a/drivers/media/platform/sh_veu.c b/drivers/media/platform/sh_veu.c new file mode 100644 index 000..dbb773b --- /dev/null +++ b/drivers/media/platform/sh_veu.c @@ -0,0 +1,1306 @@ +/* + * sh-mobile VEU mem2mem driver + * + * Copyright (C) 2012 Renesas Electronics Corporation + * Author: Guennadi Liakhovetski, g.liakhovet...@gmx.de + * Copyright (C) 2008 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License as + * published by the Free Software Foundation + */ + +#include linux/fs.h +#include linux/kernel.h +#include linux/module.h +#include linux/interrupt.h +#include linux/io.h +#include linux/platform_device.h +#include linux/pm_runtime.h +#include linux/slab.h +#include linux/types.h +#include linux/videodev2.h + +#include media/v4l2-dev.h +#include media/v4l2-device.h +#include media/v4l2-ioctl.h +#include media/v4l2-mem2mem.h +#include media/videobuf2-dma-contig.h + +#define VEU_STR 0x00 /* start register */ +#define VEU_SWR 0x10 /* src: line length */ +#define VEU_SSR 0x14 /* src: image size */ +#define VEU_SAYR 0x18 /* src: y/rgb plane address */ +#define VEU_SACR 0x1c /* src: c plane address */ +#define VEU_BSSR 0x20 /* bundle mode register */ +#define VEU_EDWR 0x30 /* dst: line length */ +#define VEU_DAYR 0x34 /* dst: y/rgb plane address */ +#define VEU_DACR 0x38 /* dst: c plane address */ +#define VEU_TRCR 0x50 /* transform control */ +#define VEU_RFCR 0x54 /* resize scale */ +#define VEU_RFSR 0x58 /* resize clip */ +#define VEU_ENHR 0x5c /* enhance */ +#define VEU_FMCR 0x70 /* filter mode */ +#define VEU_VTCR 0x74 /* lowpass vertical */ +#define VEU_HTCR 0x78 /* lowpass horizontal */ +#define VEU_APCR 0x80 /* color match */ +#define VEU_ECCR 0x84 /* color replace */ +#define VEU_AFXR 0x90 /* fixed mode */ +#define VEU_SWPR 0x94 /* swap */ +#define VEU_EIER 0xa0 /* interrupt mask */ +#define VEU_EVTR 0xa4 /* interrupt event */ +#define VEU_STAR 0xb0 /* status */ +#define VEU_BSRR 0xb4 /* reset */ + +#define VEU_MCR00 0x200 /* color conversion matrix coefficient 00 */ +#define VEU_MCR01 0x204 /* color conversion matrix coefficient 01 */ +#define VEU_MCR02 0x208 /* color conversion matrix coefficient 02 */ +#define VEU_MCR10 0x20c /* color conversion matrix coefficient 10 */ +#define VEU_MCR11 0x210 /* color conversion matrix coefficient 11 */ +#define VEU_MCR12 0x214 /* color conversion matrix coefficient 12 */
