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Commit 28ffeebb authored by Fabien Dessenne's avatar Fabien Dessenne Committed by Mauro Carvalho Chehab
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[media] bdisp: 2D blitter driver using v4l2 mem2mem framework 



This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.
It uses the v4l2 mem2mem framework.

The following features are supported and tested:
- Color format conversion (RGB32, RGB24, RGB16, NV12, YUV420P)
- Copy
- Scale
- Flip
- Deinterlace
- Wide (4K) picture support
- Crop

Signed-off-by: default avatarFabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: added missing slab.h include to bdisp-v4l2.c]

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 5a54cd2a

drivers/media/platform/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -212,6 +212,16 @@ config VIDEO_SAMSUNG_EXYNOS_GSC 
	help

	  This is a v4l2 driver for Samsung EXYNOS5 SoC G-Scaler.



config VIDEO_STI_BDISP

	tristate "STMicroelectronics BDISP 2D blitter driver"

	depends on VIDEO_DEV && VIDEO_V4L2

	depends on ARCH_STI || COMPILE_TEST

	depends on HAS_DMA

	select VIDEOBUF2_DMA_CONTIG

	select V4L2_MEM2MEM_DEV

	help

	  This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.



config VIDEO_SH_VEU

	tristate "SuperH VEU mem2mem video processing driver"

	depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA

drivers/media/platform/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -34,6 +34,8 @@ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_TV) += s5p-tv/ 
obj-$(CONFIG_VIDEO_SAMSUNG_S5P_G2D)	+= s5p-g2d/

obj-$(CONFIG_VIDEO_SAMSUNG_EXYNOS_GSC)	+= exynos-gsc/



obj-$(CONFIG_VIDEO_STI_BDISP)		+= sti/bdisp/



obj-$(CONFIG_BLACKFIN)                  += blackfin/



obj-$(CONFIG_ARCH_DAVINCI)		+= davinci/

drivers/media/platform/sti/bdisp/Kconfig

0 → 100644
+9 −0
Original line number Diff line number Diff line 
config VIDEO_STI_BDISP

	tristate "STMicroelectronics BDISP 2D blitter driver"

	depends on VIDEO_DEV && VIDEO_V4L2

	select VIDEOBUF2_DMA_CONTIG

	select V4L2_MEM2MEM_DEV

	help

	 This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.

	 To compile this driver as a module, choose M here: the module will

	 be called bdisp.ko.

drivers/media/platform/sti/bdisp/Makefile

0 → 100644
+3 −0
Original line number Diff line number Diff line 
obj-$(CONFIG_VIDEO_STI_BDISP) := bdisp.o



bdisp-objs := bdisp-v4l2.o bdisp-hw.o

drivers/media/platform/sti/bdisp/bdisp-filter.h

0 → 100644
+346 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) STMicroelectronics SA 2014

 * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.

 * License terms:  GNU General Public License (GPL), version 2

 */



#define BDISP_HF_NB             64

#define BDISP_VF_NB             40



/**

 * struct bdisp_filter_h_spec - Horizontal filter specification

 *

 * @min:        min scale factor for this filter (6.10 fixed point)

 * @max:        max scale factor for this filter (6.10 fixed point)

 * coef:        filter coefficients

 */

struct bdisp_filter_h_spec {

	const u16 min;

	const u16 max;

	const u8 coef[BDISP_HF_NB];

};



static const struct bdisp_filter_h_spec bdisp_h_spec[] = {

	{

		.min = 0,

		.max = 921,

		.coef = {

			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,

			0x00, 0x00, 0xff, 0x07, 0x3d, 0xfc, 0x01, 0x00,

			0x00, 0x01, 0xfd, 0x11, 0x36, 0xf9, 0x02, 0x00,

			0x00, 0x01, 0xfb, 0x1b, 0x2e, 0xf9, 0x02, 0x00,

			0x00, 0x01, 0xf9, 0x26, 0x26, 0xf9, 0x01, 0x00,

			0x00, 0x02, 0xf9, 0x30, 0x19, 0xfb, 0x01, 0x00,

			0x00, 0x02, 0xf9, 0x39, 0x0e, 0xfd, 0x01, 0x00,

			0x00, 0x01, 0xfc, 0x3e, 0x06, 0xff, 0x00, 0x00

		}

	},

	{

		.min = 921,

		.max = 1024,

		.coef = {

			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,

			0xff, 0x03, 0xfd, 0x08, 0x3e, 0xf9, 0x04, 0xfe,

			0xfd, 0x06, 0xf8, 0x13, 0x3b, 0xf4, 0x07, 0xfc,

			0xfb, 0x08, 0xf5, 0x1f, 0x34, 0xf1, 0x09, 0xfb,

			0xfb, 0x09, 0xf2, 0x2b, 0x2a, 0xf1, 0x09, 0xfb,

			0xfb, 0x09, 0xf2, 0x35, 0x1e, 0xf4, 0x08, 0xfb,

			0xfc, 0x07, 0xf5, 0x3c, 0x12, 0xf7, 0x06, 0xfd,

			0xfe, 0x04, 0xfa, 0x3f, 0x07, 0xfc, 0x03, 0xff

		}

	},

	{

		.min = 1024,

		.max = 1126,

		.coef = {

			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,

			0xff, 0x03, 0xfd, 0x08, 0x3e, 0xf9, 0x04, 0xfe,

			0xfd, 0x06, 0xf8, 0x13, 0x3b, 0xf4, 0x07, 0xfc,

			0xfb, 0x08, 0xf5, 0x1f, 0x34, 0xf1, 0x09, 0xfb,

			0xfb, 0x09, 0xf2, 0x2b, 0x2a, 0xf1, 0x09, 0xfb,

			0xfb, 0x09, 0xf2, 0x35, 0x1e, 0xf4, 0x08, 0xfb,

			0xfc, 0x07, 0xf5, 0x3c, 0x12, 0xf7, 0x06, 0xfd,

			0xfe, 0x04, 0xfa, 0x3f, 0x07, 0xfc, 0x03, 0xff

		}

	},

	{

		.min = 1126,

		.max = 1228,

		.coef = {

			0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,

			0xff, 0x03, 0xfd, 0x08, 0x3e, 0xf9, 0x04, 0xfe,

			0xfd, 0x06, 0xf8, 0x13, 0x3b, 0xf4, 0x07, 0xfc,

			0xfb, 0x08, 0xf5, 0x1f, 0x34, 0xf1, 0x09, 0xfb,

			0xfb, 0x09, 0xf2, 0x2b, 0x2a, 0xf1, 0x09, 0xfb,

			0xfb, 0x09, 0xf2, 0x35, 0x1e, 0xf4, 0x08, 0xfb,

			0xfc, 0x07, 0xf5, 0x3c, 0x12, 0xf7, 0x06, 0xfd,

			0xfe, 0x04, 0xfa, 0x3f, 0x07, 0xfc, 0x03, 0xff

		}

	},

	{

		.min = 1228,

		.max = 1331,

		.coef = {

			0xfd, 0x04, 0xfc, 0x05, 0x39, 0x05, 0xfc, 0x04,

			0xfc, 0x06, 0xf9, 0x0c, 0x39, 0xfe, 0x00, 0x02,

			0xfb, 0x08, 0xf6, 0x17, 0x35, 0xf9, 0x02, 0x00,

			0xfc, 0x08, 0xf4, 0x20, 0x30, 0xf4, 0x05, 0xff,

			0xfd, 0x07, 0xf4, 0x29, 0x28, 0xf3, 0x07, 0xfd,

			0xff, 0x05, 0xf5, 0x31, 0x1f, 0xf3, 0x08, 0xfc,

			0x00, 0x02, 0xf9, 0x38, 0x14, 0xf6, 0x08, 0xfb,

			0x02, 0x00, 0xff, 0x3a, 0x0b, 0xf8, 0x06, 0xfc

		}

	},

	{

		.min = 1331,

		.max = 1433,

		.coef = {

			0xfc, 0x06, 0xf9, 0x09, 0x34, 0x09, 0xf9, 0x06,

			0xfd, 0x07, 0xf7, 0x10, 0x32, 0x02, 0xfc, 0x05,

			0xfe, 0x07, 0xf6, 0x17, 0x2f, 0xfc, 0xff, 0x04,

			0xff, 0x06, 0xf5, 0x20, 0x2a, 0xf9, 0x01, 0x02,

			0x00, 0x04, 0xf6, 0x27, 0x25, 0xf6, 0x04, 0x00,

			0x02, 0x01, 0xf9, 0x2d, 0x1d, 0xf5, 0x06, 0xff,

			0x04, 0xff, 0xfd, 0x31, 0x15, 0xf5, 0x07, 0xfe,

			0x05, 0xfc, 0x02, 0x35, 0x0d, 0xf7, 0x07, 0xfd

		}

	},

	{

		.min = 1433,

		.max = 1536,

		.coef = {

			0xfe, 0x06, 0xf8, 0x0b, 0x30, 0x0b, 0xf8, 0x06,

			0xff, 0x06, 0xf7, 0x12, 0x2d, 0x05, 0xfa, 0x06,

			0x00, 0x04, 0xf6, 0x18, 0x2c, 0x00, 0xfc, 0x06,

			0x01, 0x02, 0xf7, 0x1f, 0x27, 0xfd, 0xff, 0x04,

			0x03, 0x00, 0xf9, 0x24, 0x24, 0xf9, 0x00, 0x03,

			0x04, 0xff, 0xfd, 0x29, 0x1d, 0xf7, 0x02, 0x01,

			0x06, 0xfc, 0x00, 0x2d, 0x17, 0xf6, 0x04, 0x00,

			0x06, 0xfa, 0x05, 0x30, 0x0f, 0xf7, 0x06, 0xff

		}

	},

	{

		.min = 1536,

		.max = 2048,

		.coef = {

			0x05, 0xfd, 0xfb, 0x13, 0x25, 0x13, 0xfb, 0xfd,

			0x05, 0xfc, 0xfd, 0x17, 0x24, 0x0f, 0xf9, 0xff,

			0x04, 0xfa, 0xff, 0x1b, 0x24, 0x0b, 0xf9, 0x00,

			0x03, 0xf9, 0x01, 0x1f, 0x23, 0x08, 0xf8, 0x01,

			0x02, 0xf9, 0x04, 0x22, 0x20, 0x04, 0xf9, 0x02,

			0x01, 0xf8, 0x08, 0x25, 0x1d, 0x01, 0xf9, 0x03,

			0x00, 0xf9, 0x0c, 0x25, 0x1a, 0xfe, 0xfa, 0x04,

			0xff, 0xf9, 0x10, 0x26, 0x15, 0xfc, 0xfc, 0x05

		}

	},

	{

		.min = 2048,

		.max = 3072,

		.coef = {

			0xfc, 0xfd, 0x06, 0x13, 0x18, 0x13, 0x06, 0xfd,

			0xfc, 0xfe, 0x08, 0x15, 0x17, 0x12, 0x04, 0xfc,

			0xfb, 0xfe, 0x0a, 0x16, 0x18, 0x10, 0x03, 0xfc,

			0xfb, 0x00, 0x0b, 0x18, 0x17, 0x0f, 0x01, 0xfb,

			0xfb, 0x00, 0x0d, 0x19, 0x17, 0x0d, 0x00, 0xfb,

			0xfb, 0x01, 0x0f, 0x19, 0x16, 0x0b, 0x00, 0xfb,

			0xfc, 0x03, 0x11, 0x19, 0x15, 0x09, 0xfe, 0xfb,

			0xfc, 0x04, 0x12, 0x1a, 0x12, 0x08, 0xfe, 0xfc

		}

	},

	{

		.min = 3072,

		.max = 4096,

		.coef = {

			0xfe, 0x02, 0x09, 0x0f, 0x0e, 0x0f, 0x09, 0x02,

			0xff, 0x02, 0x09, 0x0f, 0x10, 0x0e, 0x08, 0x01,

			0xff, 0x03, 0x0a, 0x10, 0x10, 0x0d, 0x07, 0x00,

			0x00, 0x04, 0x0b, 0x10, 0x0f, 0x0c, 0x06, 0x00,

			0x00, 0x05, 0x0c, 0x10, 0x0e, 0x0c, 0x05, 0x00,

			0x00, 0x06, 0x0c, 0x11, 0x0e, 0x0b, 0x04, 0x00,

			0x00, 0x07, 0x0d, 0x11, 0x0f, 0x0a, 0x03, 0xff,

			0x01, 0x08, 0x0e, 0x11, 0x0e, 0x09, 0x02, 0xff

		}

	},

	{

		.min = 4096,

		.max = 5120,

		.coef = {

			0x00, 0x04, 0x09, 0x0c, 0x0e, 0x0c, 0x09, 0x04,

			0x01, 0x05, 0x09, 0x0c, 0x0d, 0x0c, 0x08, 0x04,

			0x01, 0x05, 0x0a, 0x0c, 0x0e, 0x0b, 0x08, 0x03,

			0x02, 0x06, 0x0a, 0x0d, 0x0c, 0x0b, 0x07, 0x03,

			0x02, 0x07, 0x0a, 0x0d, 0x0d, 0x0a, 0x07, 0x02,

			0x03, 0x07, 0x0b, 0x0d, 0x0c, 0x0a, 0x06, 0x02,

			0x03, 0x08, 0x0b, 0x0d, 0x0d, 0x0a, 0x05, 0x01,

			0x04, 0x08, 0x0c, 0x0d, 0x0c, 0x09, 0x05, 0x01

		}

	},

	{

		.min = 5120,

		.max = 65535,

		.coef = {

			0x03, 0x06, 0x09, 0x0b, 0x09, 0x0b, 0x09, 0x06,

			0x03, 0x06, 0x09, 0x0b, 0x0c, 0x0a, 0x08, 0x05,

			0x03, 0x06, 0x09, 0x0b, 0x0c, 0x0a, 0x08, 0x05,

			0x04, 0x07, 0x09, 0x0b, 0x0b, 0x0a, 0x08, 0x04,

			0x04, 0x07, 0x0a, 0x0b, 0x0b, 0x0a, 0x07, 0x04,

			0x04, 0x08, 0x0a, 0x0b, 0x0b, 0x09, 0x07, 0x04,

			0x05, 0x08, 0x0a, 0x0b, 0x0c, 0x09, 0x06, 0x03,

			0x05, 0x08, 0x0a, 0x0b, 0x0c, 0x09, 0x06, 0x03

		}

	}

};



/**

 * struct bdisp_filter_v_spec - Vertical filter specification

 *

 * @min:	min scale factor for this filter (6.10 fixed point)

 * @max:	max scale factor for this filter (6.10 fixed point)

 * coef:	filter coefficients

 */

struct bdisp_filter_v_spec {

	const u16 min;

	const u16 max;

	const u8 coef[BDISP_VF_NB];

};



static const struct bdisp_filter_v_spec bdisp_v_spec[] = {

	{

		.min = 0,

		.max = 1024,

		.coef = {

			0x00, 0x00, 0x40, 0x00, 0x00,

			0x00, 0x06, 0x3d, 0xfd, 0x00,

			0xfe, 0x0f, 0x38, 0xfb, 0x00,

			0xfd, 0x19, 0x2f, 0xfb, 0x00,

			0xfc, 0x24, 0x24, 0xfc, 0x00,

			0xfb, 0x2f, 0x19, 0xfd, 0x00,

			0xfb, 0x38, 0x0f, 0xfe, 0x00,

			0xfd, 0x3d, 0x06, 0x00, 0x00

		}

	},

	{

		.min = 1024,

		.max = 1331,

		.coef = {

			0xfc, 0x05, 0x3e, 0x05, 0xfc,

			0xf8, 0x0e, 0x3b, 0xff, 0x00,

			0xf5, 0x18, 0x38, 0xf9, 0x02,

			0xf4, 0x21, 0x31, 0xf5, 0x05,

			0xf4, 0x2a, 0x27, 0xf4, 0x07,

			0xf6, 0x30, 0x1e, 0xf4, 0x08,

			0xf9, 0x35, 0x15, 0xf6, 0x07,

			0xff, 0x37, 0x0b, 0xf9, 0x06

		}

	},

	{

		.min = 1331,

		.max = 1433,

		.coef = {

			0xf8, 0x0a, 0x3c, 0x0a, 0xf8,

			0xf6, 0x12, 0x3b, 0x02, 0xfb,

			0xf4, 0x1b, 0x35, 0xfd, 0xff,

			0xf4, 0x23, 0x30, 0xf8, 0x01,

			0xf6, 0x29, 0x27, 0xf6, 0x04,

			0xf9, 0x2e, 0x1e, 0xf5, 0x06,

			0xfd, 0x31, 0x16, 0xf6, 0x06,

			0x02, 0x32, 0x0d, 0xf8, 0x07

		}

	},

	{

		.min = 1433,

		.max = 1536,

		.coef = {

			0xf6, 0x0e, 0x38, 0x0e, 0xf6,

			0xf5, 0x15, 0x38, 0x06, 0xf8,

			0xf5, 0x1d, 0x33, 0x00, 0xfb,

			0xf6, 0x23, 0x2d, 0xfc, 0xfe,

			0xf9, 0x28, 0x26, 0xf9, 0x00,

			0xfc, 0x2c, 0x1e, 0xf7, 0x03,

			0x00, 0x2e, 0x18, 0xf6, 0x04,

			0x05, 0x2e, 0x11, 0xf7, 0x05

		}

	},

	{

		.min = 1536,

		.max = 2048,

		.coef = {

			0xfb, 0x13, 0x24, 0x13, 0xfb,

			0xfd, 0x17, 0x23, 0x0f, 0xfa,

			0xff, 0x1a, 0x23, 0x0b, 0xf9,

			0x01, 0x1d, 0x22, 0x07, 0xf9,

			0x04, 0x20, 0x1f, 0x04, 0xf9,

			0x07, 0x22, 0x1c, 0x01, 0xfa,

			0x0b, 0x24, 0x17, 0xff, 0xfb,

			0x0f, 0x24, 0x14, 0xfd, 0xfc

		}

	},

	{

		.min = 2048,

		.max = 3072,

		.coef = {

			0x05, 0x10, 0x16, 0x10, 0x05,

			0x06, 0x11, 0x16, 0x0f, 0x04,

			0x08, 0x13, 0x15, 0x0e, 0x02,

			0x09, 0x14, 0x16, 0x0c, 0x01,

			0x0b, 0x15, 0x15, 0x0b, 0x00,

			0x0d, 0x16, 0x13, 0x0a, 0x00,

			0x0f, 0x17, 0x13, 0x08, 0xff,

			0x11, 0x18, 0x12, 0x07, 0xfe

		}

	},

	{

		.min = 3072,

		.max = 4096,

		.coef = {

			0x09, 0x0f, 0x10, 0x0f, 0x09,

			0x09, 0x0f, 0x12, 0x0e, 0x08,

			0x0a, 0x10, 0x11, 0x0e, 0x07,

			0x0b, 0x11, 0x11, 0x0d, 0x06,

			0x0c, 0x11, 0x12, 0x0c, 0x05,

			0x0d, 0x12, 0x11, 0x0c, 0x04,

			0x0e, 0x12, 0x11, 0x0b, 0x04,

			0x0f, 0x13, 0x11, 0x0a, 0x03

		}

	},

	{

		.min = 4096,

		.max = 5120,

		.coef = {

			0x0a, 0x0e, 0x10, 0x0e, 0x0a,

			0x0b, 0x0e, 0x0f, 0x0e, 0x0a,

			0x0b, 0x0f, 0x10, 0x0d, 0x09,

			0x0c, 0x0f, 0x10, 0x0d, 0x08,

			0x0d, 0x0f, 0x0f, 0x0d, 0x08,

			0x0d, 0x10, 0x10, 0x0c, 0x07,

			0x0e, 0x10, 0x0f, 0x0c, 0x07,

			0x0f, 0x10, 0x10, 0x0b, 0x06

		}

	},

	{

		.min = 5120,

		.max = 65535,

		.coef = {

			0x0b, 0x0e, 0x0e, 0x0e, 0x0b,

			0x0b, 0x0e, 0x0f, 0x0d, 0x0b,

			0x0c, 0x0e, 0x0f, 0x0d, 0x0a,

			0x0c, 0x0e, 0x0f, 0x0d, 0x0a,

			0x0d, 0x0f, 0x0e, 0x0d, 0x09,

			0x0d, 0x0f, 0x0f, 0x0c, 0x09,

			0x0e, 0x0f, 0x0e, 0x0c, 0x09,

			0x0e, 0x0f, 0x0f, 0x0c, 0x08

		}

	}

};



#define NB_H_FILTER ARRAY_SIZE(bdisp_h_spec)

#define NB_V_FILTER ARRAY_SIZE(bdisp_v_spec)



/* RGB YUV 601 standard conversion */

static const u32 bdisp_rgb_to_yuv[] = {

		0x0e1e8bee, 0x08420419, 0xfb5ed471, 0x08004080,

};



static const u32 bdisp_yuv_to_rgb[] = {

		0x3324a800, 0xe604ab9c, 0x0004a957, 0x32121eeb,

};