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Commit 10626744 authored by Songjun Wu's avatar Songjun Wu Committed by Mauro Carvalho Chehab
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[media] atmel-isc: add the Image Sensor Controller code 



Add driver for the Image Sensor Controller. It manages
incoming data from a parallel based CMOS/CCD sensor.
It has an internal image processor, also integrates a
triple channel direct memory access controller master
interface.

Signed-off-by: default avatarSongjun Wu <songjun.wu@microchip.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 8d4b231a

drivers/media/platform/Kconfig

+1 −0
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@@ -111,6 +111,7 @@ source "drivers/media/platform/s5p-tv/Kconfig" 
source "drivers/media/platform/am437x/Kconfig"

source "drivers/media/platform/xilinx/Kconfig"

source "drivers/media/platform/rcar-vin/Kconfig"

source "drivers/media/platform/atmel/Kconfig"



config VIDEO_TI_CAL

	tristate "TI CAL (Camera Adaptation Layer) driver"

drivers/media/platform/Makefile

+2 −0
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@@ -58,6 +58,8 @@ obj-$(CONFIG_VIDEO_XILINX) += xilinx/ 


obj-$(CONFIG_VIDEO_RCAR_VIN)		+= rcar-vin/



obj-$(CONFIG_VIDEO_ATMEL_ISC)		+= atmel/



ccflags-y += -I$(srctree)/drivers/media/i2c



obj-$(CONFIG_VIDEO_MEDIATEK_VPU)	+= mtk-vpu/

drivers/media/platform/atmel/Kconfig

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+9 −0
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config VIDEO_ATMEL_ISC

	tristate "ATMEL Image Sensor Controller (ISC) support"

	depends on VIDEO_V4L2 && COMMON_CLK && VIDEO_V4L2_SUBDEV_API && HAS_DMA

	depends on ARCH_AT91 || COMPILE_TEST

	select VIDEOBUF2_DMA_CONTIG

	select REGMAP_MMIO

	help

	   This module makes the ATMEL Image Sensor Controller available

	   as a v4l2 device.
 
 No newline at end of file

drivers/media/platform/atmel/Makefile

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obj-$(CONFIG_VIDEO_ATMEL_ISC) += atmel-isc.o

drivers/media/platform/atmel/atmel-isc-regs.h

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#ifndef __ATMEL_ISC_REGS_H

#define __ATMEL_ISC_REGS_H



#include <linux/bitops.h>



/* ISC Control Enable Register 0 */

#define ISC_CTRLEN      0x00000000



/* ISC Control Disable Register 0 */

#define ISC_CTRLDIS     0x00000004



/* ISC Control Status Register 0 */

#define ISC_CTRLSR      0x00000008



#define ISC_CTRL_CAPTURE	BIT(0)

#define ISC_CTRL_UPPRO		BIT(1)

#define ISC_CTRL_HISREQ		BIT(2)

#define ISC_CTRL_HISCLR		BIT(3)



/* ISC Parallel Front End Configuration 0 Register */

#define ISC_PFE_CFG0    0x0000000c



#define ISC_PFE_CFG0_HPOL_LOW   BIT(0)

#define ISC_PFE_CFG0_VPOL_LOW   BIT(1)

#define ISC_PFE_CFG0_PPOL_LOW   BIT(2)



#define ISC_PFE_CFG0_MODE_PROGRESSIVE   (0x0 << 4)

#define ISC_PFE_CFG0_MODE_MASK          GENMASK(6, 4)



#define ISC_PFE_CFG0_BPS_EIGHT  (0x4 << 28)

#define ISC_PFG_CFG0_BPS_NINE   (0x3 << 28)

#define ISC_PFG_CFG0_BPS_TEN    (0x2 << 28)

#define ISC_PFG_CFG0_BPS_ELEVEN (0x1 << 28)

#define ISC_PFG_CFG0_BPS_TWELVE (0x0 << 28)

#define ISC_PFE_CFG0_BPS_MASK   GENMASK(30, 28)



/* ISC Clock Enable Register */

#define ISC_CLKEN               0x00000018



/* ISC Clock Disable Register */

#define ISC_CLKDIS              0x0000001c



/* ISC Clock Status Register */

#define ISC_CLKSR               0x00000020



#define ISC_CLK(n)		BIT(n)



/* ISC Clock Configuration Register */

#define ISC_CLKCFG              0x00000024

#define ISC_CLKCFG_DIV_SHIFT(n) ((n)*16)

#define ISC_CLKCFG_DIV_MASK(n)  GENMASK(((n)*16 + 7), (n)*16)

#define ISC_CLKCFG_SEL_SHIFT(n) ((n)*16 + 8)

#define ISC_CLKCFG_SEL_MASK(n)  GENMASK(((n)*17 + 8), ((n)*16 + 8))



/* ISC Interrupt Enable Register */

#define ISC_INTEN       0x00000028



/* ISC Interrupt Disable Register */

#define ISC_INTDIS      0x0000002c



/* ISC Interrupt Mask Register */

#define ISC_INTMASK     0x00000030



/* ISC Interrupt Status Register */

#define ISC_INTSR       0x00000034



#define ISC_INT_DDONE		BIT(8)



/* ISC White Balance Control Register */

#define ISC_WB_CTRL     0x00000058



/* ISC White Balance Configuration Register */

#define ISC_WB_CFG      0x0000005c



/* ISC Color Filter Array Control Register */

#define ISC_CFA_CTRL    0x00000070



/* ISC Color Filter Array Configuration Register */

#define ISC_CFA_CFG     0x00000074



#define ISC_BAY_CFG_GRGR	0x0

#define ISC_BAY_CFG_RGRG	0x1

#define ISC_BAY_CFG_GBGB	0x2

#define ISC_BAY_CFG_BGBG	0x3

#define ISC_BAY_CFG_MASK	GENMASK(1, 0)



/* ISC Color Correction Control Register */

#define ISC_CC_CTRL     0x00000078



/* ISC Gamma Correction Control Register */

#define ISC_GAM_CTRL    0x00000094



/* Color Space Conversion Control Register */

#define ISC_CSC_CTRL    0x00000398



/* Contrast And Brightness Control Register */

#define ISC_CBC_CTRL    0x000003b4



/* Subsampling 4:4:4 to 4:2:2 Control Register */

#define ISC_SUB422_CTRL 0x000003c4



/* Subsampling 4:2:2 to 4:2:0 Control Register */

#define ISC_SUB420_CTRL 0x000003cc



/* Rounding, Limiting and Packing Configuration Register */

#define ISC_RLP_CFG     0x000003d0



#define ISC_RLP_CFG_MODE_DAT8           0x0

#define ISC_RLP_CFG_MODE_DAT9           0x1

#define ISC_RLP_CFG_MODE_DAT10          0x2

#define ISC_RLP_CFG_MODE_DAT11          0x3

#define ISC_RLP_CFG_MODE_DAT12          0x4

#define ISC_RLP_CFG_MODE_DATY8          0x5

#define ISC_RLP_CFG_MODE_DATY10         0x6

#define ISC_RLP_CFG_MODE_ARGB444        0x7

#define ISC_RLP_CFG_MODE_ARGB555        0x8

#define ISC_RLP_CFG_MODE_RGB565         0x9

#define ISC_RLP_CFG_MODE_ARGB32         0xa

#define ISC_RLP_CFG_MODE_YYCC           0xb

#define ISC_RLP_CFG_MODE_YYCC_LIMITED   0xc

#define ISC_RLP_CFG_MODE_MASK           GENMASK(3, 0)



/* DMA Configuration Register */

#define ISC_DCFG        0x000003e0

#define ISC_DCFG_IMODE_PACKED8          0x0

#define ISC_DCFG_IMODE_PACKED16         0x1

#define ISC_DCFG_IMODE_PACKED32         0x2

#define ISC_DCFG_IMODE_YC422SP          0x3

#define ISC_DCFG_IMODE_YC422P           0x4

#define ISC_DCFG_IMODE_YC420SP          0x5

#define ISC_DCFG_IMODE_YC420P           0x6

#define ISC_DCFG_IMODE_MASK             GENMASK(2, 0)



#define ISC_DCFG_YMBSIZE_SINGLE         (0x0 << 4)

#define ISC_DCFG_YMBSIZE_BEATS4         (0x1 << 4)

#define ISC_DCFG_YMBSIZE_BEATS8         (0x2 << 4)

#define ISC_DCFG_YMBSIZE_BEATS16        (0x3 << 4)

#define ISC_DCFG_YMBSIZE_MASK           GENMASK(5, 4)



#define ISC_DCFG_CMBSIZE_SINGLE         (0x0 << 8)

#define ISC_DCFG_CMBSIZE_BEATS4         (0x1 << 8)

#define ISC_DCFG_CMBSIZE_BEATS8         (0x2 << 8)

#define ISC_DCFG_CMBSIZE_BEATS16        (0x3 << 8)

#define ISC_DCFG_CMBSIZE_MASK           GENMASK(9, 8)



/* DMA Control Register */

#define ISC_DCTRL       0x000003e4



#define ISC_DCTRL_DVIEW_PACKED          (0x0 << 1)

#define ISC_DCTRL_DVIEW_SEMIPLANAR      (0x1 << 1)

#define ISC_DCTRL_DVIEW_PLANAR          (0x2 << 1)

#define ISC_DCTRL_DVIEW_MASK            GENMASK(2, 1)



#define ISC_DCTRL_IE_IS			(0x0 << 4)



/* DMA Descriptor Address Register */

#define ISC_DNDA        0x000003e8



/* DMA Address 0 Register */

#define ISC_DAD0        0x000003ec



/* DMA Stride 0 Register */

#define ISC_DST0        0x000003f0



#endif