diff options
Diffstat (limited to 'drivers/media/video/ov772x.c')
| -rw-r--r-- | drivers/media/video/ov772x.c | 1013 |
1 files changed, 0 insertions, 1013 deletions
diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c deleted file mode 100644 index 3c9e0ba974e..00000000000 --- a/drivers/media/video/ov772x.c +++ /dev/null @@ -1,1013 +0,0 @@ -/* - * ov772x Camera Driver - * - * Copyright (C) 2008 Renesas Solutions Corp. - * Kuninori Morimoto <morimoto.kuninori@renesas.com> - * - * Based on ov7670 and soc_camera_platform driver, - * - * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> - * Copyright (C) 2008 Magnus Damm - * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/videodev2.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-common.h> -#include <media/soc_camera.h> -#include <media/ov772x.h> - -/* - * register offset - */ -#define GAIN 0x00 /* AGC - Gain control gain setting */ -#define BLUE 0x01 /* AWB - Blue channel gain setting */ -#define RED 0x02 /* AWB - Red channel gain setting */ -#define GREEN 0x03 /* AWB - Green channel gain setting */ -#define COM1 0x04 /* Common control 1 */ -#define BAVG 0x05 /* U/B Average Level */ -#define GAVG 0x06 /* Y/Gb Average Level */ -#define RAVG 0x07 /* V/R Average Level */ -#define AECH 0x08 /* Exposure Value - AEC MSBs */ -#define COM2 0x09 /* Common control 2 */ -#define PID 0x0A /* Product ID Number MSB */ -#define VER 0x0B /* Product ID Number LSB */ -#define COM3 0x0C /* Common control 3 */ -#define COM4 0x0D /* Common control 4 */ -#define COM5 0x0E /* Common control 5 */ -#define COM6 0x0F /* Common control 6 */ -#define AEC 0x10 /* Exposure Value */ -#define CLKRC 0x11 /* Internal clock */ -#define COM7 0x12 /* Common control 7 */ -#define COM8 0x13 /* Common control 8 */ -#define COM9 0x14 /* Common control 9 */ -#define COM10 0x15 /* Common control 10 */ -#define REG16 0x16 /* Register 16 */ -#define HSTART 0x17 /* Horizontal sensor size */ -#define HSIZE 0x18 /* Horizontal frame (HREF column) end high 8-bit */ -#define VSTART 0x19 /* Vertical frame (row) start high 8-bit */ -#define VSIZE 0x1A /* Vertical sensor size */ -#define PSHFT 0x1B /* Data format - pixel delay select */ -#define MIDH 0x1C /* Manufacturer ID byte - high */ -#define MIDL 0x1D /* Manufacturer ID byte - low */ -#define LAEC 0x1F /* Fine AEC value */ -#define COM11 0x20 /* Common control 11 */ -#define BDBASE 0x22 /* Banding filter Minimum AEC value */ -#define DBSTEP 0x23 /* Banding filter Maximum Setp */ -#define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */ -#define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */ -#define VPT 0x26 /* AGC/AEC Fast mode operating region */ -#define REG28 0x28 /* Register 28 */ -#define HOUTSIZE 0x29 /* Horizontal data output size MSBs */ -#define EXHCH 0x2A /* Dummy pixel insert MSB */ -#define EXHCL 0x2B /* Dummy pixel insert LSB */ -#define VOUTSIZE 0x2C /* Vertical data output size MSBs */ -#define ADVFL 0x2D /* LSB of insert dummy lines in Vertical direction */ -#define ADVFH 0x2E /* MSG of insert dummy lines in Vertical direction */ -#define YAVE 0x2F /* Y/G Channel Average value */ -#define LUMHTH 0x30 /* Histogram AEC/AGC Luminance high level threshold */ -#define LUMLTH 0x31 /* Histogram AEC/AGC Luminance low level threshold */ -#define HREF 0x32 /* Image start and size control */ -#define DM_LNL 0x33 /* Dummy line low 8 bits */ -#define DM_LNH 0x34 /* Dummy line high 8 bits */ -#define ADOFF_B 0x35 /* AD offset compensation value for B channel */ -#define ADOFF_R 0x36 /* AD offset compensation value for R channel */ -#define ADOFF_GB 0x37 /* AD offset compensation value for Gb channel */ -#define ADOFF_GR 0x38 /* AD offset compensation value for Gr channel */ -#define OFF_B 0x39 /* Analog process B channel offset value */ -#define OFF_R 0x3A /* Analog process R channel offset value */ -#define OFF_GB 0x3B /* Analog process Gb channel offset value */ -#define OFF_GR 0x3C /* Analog process Gr channel offset value */ -#define COM12 0x3D /* Common control 12 */ -#define COM13 0x3E /* Common control 13 */ -#define COM14 0x3F /* Common control 14 */ -#define COM15 0x40 /* Common control 15*/ -#define COM16 0x41 /* Common control 16 */ -#define TGT_B 0x42 /* BLC blue channel target value */ -#define TGT_R 0x43 /* BLC red channel target value */ -#define TGT_GB 0x44 /* BLC Gb channel target value */ -#define TGT_GR 0x45 /* BLC Gr channel target value */ -/* for ov7720 */ -#define LCC0 0x46 /* Lens correction control 0 */ -#define LCC1 0x47 /* Lens correction option 1 - X coordinate */ -#define LCC2 0x48 /* Lens correction option 2 - Y coordinate */ -#define LCC3 0x49 /* Lens correction option 3 */ -#define LCC4 0x4A /* Lens correction option 4 - radius of the circular */ -#define LCC5 0x4B /* Lens correction option 5 */ -#define LCC6 0x4C /* Lens correction option 6 */ -/* for ov7725 */ -#define LC_CTR 0x46 /* Lens correction control */ -#define LC_XC 0x47 /* X coordinate of lens correction center relative */ -#define LC_YC 0x48 /* Y coordinate of lens correction center relative */ -#define LC_COEF 0x49 /* Lens correction coefficient */ -#define LC_RADI 0x4A /* Lens correction radius */ -#define LC_COEFB 0x4B /* Lens B channel compensation coefficient */ -#define LC_COEFR 0x4C /* Lens R channel compensation coefficient */ - -#define FIXGAIN 0x4D /* Analog fix gain amplifer */ -#define AREF0 0x4E /* Sensor reference control */ -#define AREF1 0x4F /* Sensor reference current control */ -#define AREF2 0x50 /* Analog reference control */ -#define AREF3 0x51 /* ADC reference control */ -#define AREF4 0x52 /* ADC reference control */ -#define AREF5 0x53 /* ADC reference control */ -#define AREF6 0x54 /* Analog reference control */ -#define AREF7 0x55 /* Analog reference control */ -#define UFIX 0x60 /* U channel fixed value output */ -#define VFIX 0x61 /* V channel fixed value output */ -#define AWBB_BLK 0x62 /* AWB option for advanced AWB */ -#define AWB_CTRL0 0x63 /* AWB control byte 0 */ -#define DSP_CTRL1 0x64 /* DSP control byte 1 */ -#define DSP_CTRL2 0x65 /* DSP control byte 2 */ -#define DSP_CTRL3 0x66 /* DSP control byte 3 */ -#define DSP_CTRL4 0x67 /* DSP control byte 4 */ -#define AWB_BIAS 0x68 /* AWB BLC level clip */ -#define AWB_CTRL1 0x69 /* AWB control 1 */ -#define AWB_CTRL2 0x6A /* AWB control 2 */ -#define AWB_CTRL3 0x6B /* AWB control 3 */ -#define AWB_CTRL4 0x6C /* AWB control 4 */ -#define AWB_CTRL5 0x6D /* AWB control 5 */ -#define AWB_CTRL6 0x6E /* AWB control 6 */ -#define AWB_CTRL7 0x6F /* AWB control 7 */ -#define AWB_CTRL8 0x70 /* AWB control 8 */ -#define AWB_CTRL9 0x71 /* AWB control 9 */ -#define AWB_CTRL10 0x72 /* AWB control 10 */ -#define AWB_CTRL11 0x73 /* AWB control 11 */ -#define AWB_CTRL12 0x74 /* AWB control 12 */ -#define AWB_CTRL13 0x75 /* AWB control 13 */ -#define AWB_CTRL14 0x76 /* AWB control 14 */ -#define AWB_CTRL15 0x77 /* AWB control 15 */ -#define AWB_CTRL16 0x78 /* AWB control 16 */ -#define AWB_CTRL17 0x79 /* AWB control 17 */ -#define AWB_CTRL18 0x7A /* AWB control 18 */ -#define AWB_CTRL19 0x7B /* AWB control 19 */ -#define AWB_CTRL20 0x7C /* AWB control 20 */ -#define AWB_CTRL21 0x7D /* AWB control 21 */ -#define GAM1 0x7E /* Gamma Curve 1st segment input end point */ -#define GAM2 0x7F /* Gamma Curve 2nd segment input end point */ -#define GAM3 0x80 /* Gamma Curve 3rd segment input end point */ -#define GAM4 0x81 /* Gamma Curve 4th segment input end point */ -#define GAM5 0x82 /* Gamma Curve 5th segment input end point */ -#define GAM6 0x83 /* Gamma Curve 6th segment input end point */ -#define GAM7 0x84 /* Gamma Curve 7th segment input end point */ -#define GAM8 0x85 /* Gamma Curve 8th segment input end point */ -#define GAM9 0x86 /* Gamma Curve 9th segment input end point */ -#define GAM10 0x87 /* Gamma Curve 10th segment input end point */ -#define GAM11 0x88 /* Gamma Curve 11th segment input end point */ -#define GAM12 0x89 /* Gamma Curve 12th segment input end point */ -#define GAM13 0x8A /* Gamma Curve 13th segment input end point */ -#define GAM14 0x8B /* Gamma Curve 14th segment input end point */ -#define GAM15 0x8C /* Gamma Curve 15th segment input end point */ -#define SLOP 0x8D /* Gamma curve highest segment slope */ -#define DNSTH 0x8E /* De-noise threshold */ -#define EDGE0 0x8F /* Edge enhancement control 0 */ -#define EDGE1 0x90 /* Edge enhancement control 1 */ -#define DNSOFF 0x91 /* Auto De-noise threshold control */ -#define EDGE2 0x92 /* Edge enhancement strength low point control */ -#define EDGE3 0x93 /* Edge enhancement strength high point control */ -#define MTX1 0x94 /* Matrix coefficient 1 */ -#define MTX2 0x95 /* Matrix coefficient 2 */ -#define MTX3 0x96 /* Matrix coefficient 3 */ -#define MTX4 0x97 /* Matrix coefficient 4 */ -#define MTX5 0x98 /* Matrix coefficient 5 */ -#define MTX6 0x99 /* Matrix coefficient 6 */ -#define MTX_CTRL 0x9A /* Matrix control */ -#define BRIGHT 0x9B /* Brightness control */ -#define CNTRST 0x9C /* Contrast contrast */ -#define CNTRST_CTRL 0x9D /* Contrast contrast center */ -#define UVAD_J0 0x9E /* Auto UV adjust contrast 0 */ -#define UVAD_J1 0x9F /* Auto UV adjust contrast 1 */ -#define SCAL0 0xA0 /* Scaling control 0 */ -#define SCAL1 0xA1 /* Scaling control 1 */ -#define SCAL2 0xA2 /* Scaling control 2 */ -#define FIFODLYM 0xA3 /* FIFO manual mode delay control */ -#define FIFODLYA 0xA4 /* FIFO auto mode delay control */ -#define SDE 0xA6 /* Special digital effect control */ -#define USAT 0xA7 /* U component saturation control */ -#define VSAT 0xA8 /* V component saturation control */ -/* for ov7720 */ -#define HUE0 0xA9 /* Hue control 0 */ -#define HUE1 0xAA /* Hue control 1 */ -/* for ov7725 */ -#define HUECOS 0xA9 /* Cosine value */ -#define HUESIN 0xAA /* Sine value */ - -#define SIGN 0xAB /* Sign bit for Hue and contrast */ -#define DSPAUTO 0xAC /* DSP auto function ON/OFF control */ - -/* - * register detail - */ - -/* COM2 */ -#define SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */ - /* Output drive capability */ -#define OCAP_1x 0x00 /* 1x */ -#define OCAP_2x 0x01 /* 2x */ -#define OCAP_3x 0x02 /* 3x */ -#define OCAP_4x 0x03 /* 4x */ - -/* COM3 */ -#define SWAP_MASK 0x38 - -#define VFIMG_ON_OFF 0x80 /* Vertical flip image ON/OFF selection */ -#define HMIMG_ON_OFF 0x40 /* Horizontal mirror image ON/OFF selection */ -#define SWAP_RGB 0x20 /* Swap B/R output sequence in RGB mode */ -#define SWAP_YUV 0x10 /* Swap Y/UV output sequence in YUV mode */ -#define SWAP_ML 0x08 /* Swap output MSB/LSB */ - /* Tri-state option for output clock */ -#define NOTRI_CLOCK 0x04 /* 0: Tri-state at this period */ - /* 1: No tri-state at this period */ - /* Tri-state option for output data */ -#define NOTRI_DATA 0x02 /* 0: Tri-state at this period */ - /* 1: No tri-state at this period */ -#define SCOLOR_TEST 0x01 /* Sensor color bar test pattern */ - -/* COM4 */ - /* PLL frequency control */ -#define PLL_BYPASS 0x00 /* 00: Bypass PLL */ -#define PLL_4x 0x40 /* 01: PLL 4x */ -#define PLL_6x 0x80 /* 10: PLL 6x */ -#define PLL_8x 0xc0 /* 11: PLL 8x */ - /* AEC evaluate window */ -#define AEC_FULL 0x00 /* 00: Full window */ -#define AEC_1p2 0x10 /* 01: 1/2 window */ -#define AEC_1p4 0x20 /* 10: 1/4 window */ -#define AEC_2p3 0x30 /* 11: Low 2/3 window */ - -/* COM5 */ -#define AFR_ON_OFF 0x80 /* Auto frame rate control ON/OFF selection */ -#define AFR_SPPED 0x40 /* Auto frame rate control speed slection */ - /* Auto frame rate max rate control */ -#define AFR_NO_RATE 0x00 /* No reduction of frame rate */ -#define AFR_1p2 0x10 /* Max reduction to 1/2 frame rate */ -#define AFR_1p4 0x20 /* Max reduction to 1/4 frame rate */ -#define AFR_1p8 0x30 /* Max reduction to 1/8 frame rate */ - /* Auto frame rate active point control */ -#define AF_2x 0x00 /* Add frame when AGC reaches 2x gain */ -#define AF_4x 0x04 /* Add frame when AGC reaches 4x gain */ -#define AF_8x 0x08 /* Add frame when AGC reaches 8x gain */ -#define AF_16x 0x0c /* Add frame when AGC reaches 16x gain */ - /* AEC max step control */ -#define AEC_NO_LIMIT 0x01 /* 0 : AEC incease step has limit */ - /* 1 : No limit to AEC increase step */ - -/* COM7 */ - /* SCCB Register Reset */ -#define SCCB_RESET 0x80 /* 0 : No change */ - /* 1 : Resets all registers to default */ - /* Resolution selection */ -#define SLCT_MASK 0x40 /* Mask of VGA or QVGA */ -#define SLCT_VGA 0x00 /* 0 : VGA */ -#define SLCT_QVGA 0x40 /* 1 : QVGA */ -#define ITU656_ON_OFF 0x20 /* ITU656 protocol ON/OFF selection */ - /* RGB output format control */ -#define FMT_GBR422 0x00 /* 00 : GBR 4:2:2 */ -#define FMT_RGB565 0x04 /* 01 : RGB 565 */ -#define FMT_RGB555 0x08 /* 10 : RGB 555 */ -#define FMT_RGB444 0x0c /* 11 : RGB 444 */ - /* Output format control */ -#define OFMT_YUV 0x00 /* 00 : YUV */ -#define OFMT_P_BRAW 0x01 /* 01 : Processed Bayer RAW */ -#define OFMT_RGB 0x02 /* 10 : RGB */ -#define OFMT_BRAW 0x03 /* 11 : Bayer RAW */ - -/* COM8 */ -#define FAST_ALGO 0x80 /* Enable fast AGC/AEC algorithm */ - /* AEC Setp size limit */ -#define UNLMT_STEP 0x40 /* 0 : Step size is limited */ - /* 1 : Unlimited step size */ -#define BNDF_ON_OFF 0x20 /* Banding filter ON/OFF */ -#define AEC_BND 0x10 /* Enable AEC below banding value */ -#define AEC_ON_OFF 0x08 /* Fine AEC ON/OFF control */ -#define AGC_ON 0x04 /* AGC Enable */ -#define AWB_ON 0x02 /* AWB Enable */ -#define AEC_ON 0x01 /* AEC Enable */ - -/* COM9 */ -#define BASE_AECAGC 0x80 /* Histogram or average based AEC/AGC */ - /* Automatic gain ceiling - maximum AGC value */ -#define GAIN_2x 0x00 /* 000 : 2x */ -#define GAIN_4x 0x10 /* 001 : 4x */ -#define GAIN_8x 0x20 /* 010 : 8x */ -#define GAIN_16x 0x30 /* 011 : 16x */ -#define GAIN_32x 0x40 /* 100 : 32x */ -#define GAIN_64x 0x50 /* 101 : 64x */ -#define GAIN_128x 0x60 /* 110 : 128x */ -#define DROP_VSYNC 0x04 /* Drop VSYNC output of corrupt frame */ -#define DROP_HREF 0x02 /* Drop HREF output of corrupt frame */ - -/* COM11 */ -#define SGLF_ON_OFF 0x02 /* Single frame ON/OFF selection */ -#define SGLF_TRIG 0x01 /* Single frame transfer trigger */ - -/* EXHCH */ -#define VSIZE_LSB 0x04 /* Vertical data output size LSB */ - -/* DSP_CTRL1 */ -#define FIFO_ON 0x80 /* FIFO enable/disable selection */ -#define UV_ON_OFF 0x40 /* UV adjust function ON/OFF selection */ -#define YUV444_2_422 0x20 /* YUV444 to 422 UV channel option selection */ -#define CLR_MTRX_ON_OFF 0x10 /* Color matrix ON/OFF selection */ -#define INTPLT_ON_OFF 0x08 /* Interpolation ON/OFF selection */ -#define GMM_ON_OFF 0x04 /* Gamma function ON/OFF selection */ -#define AUTO_BLK_ON_OFF 0x02 /* Black defect auto correction ON/OFF */ -#define AUTO_WHT_ON_OFF 0x01 /* White define auto correction ON/OFF */ - -/* DSP_CTRL3 */ -#define UV_MASK 0x80 /* UV output sequence option */ -#define UV_ON 0x80 /* ON */ -#define UV_OFF 0x00 /* OFF */ -#define CBAR_MASK 0x20 /* DSP Color bar mask */ -#define CBAR_ON 0x20 /* ON */ -#define CBAR_OFF 0x00 /* OFF */ - -/* HSTART */ -#define HST_VGA 0x23 -#define HST_QVGA 0x3F - -/* HSIZE */ -#define HSZ_VGA 0xA0 -#define HSZ_QVGA 0x50 - -/* VSTART */ -#define VST_VGA 0x07 -#define VST_QVGA 0x03 - -/* VSIZE */ -#define VSZ_VGA 0xF0 -#define VSZ_QVGA 0x78 - -/* HOUTSIZE */ -#define HOSZ_VGA 0xA0 -#define HOSZ_QVGA 0x50 - -/* VOUTSIZE */ -#define VOSZ_VGA 0xF0 -#define VOSZ_QVGA 0x78 - -/* - * bit configure (32 bit) - * this is used in struct ov772x_color_format :: option - */ -#define OP_UV 0x00000001 -#define OP_SWAP_RGB 0x00000002 - -/* - * ID - */ -#define OV7720 0x7720 -#define OV7725 0x7721 -#define VERSION(pid, ver) ((pid<<8)|(ver&0xFF)) - -/* - * struct - */ -struct regval_list { - unsigned char reg_num; - unsigned char value; -}; - -struct ov772x_color_format { - char *name; - __u32 fourcc; - const struct regval_list *regs; - unsigned int option; -}; - -struct ov772x_win_size { - char *name; - __u32 width; - __u32 height; - unsigned char com7_bit; - const struct regval_list *regs; -}; - -struct ov772x_priv { - struct ov772x_camera_info *info; - struct i2c_client *client; - struct soc_camera_device icd; - const struct ov772x_color_format *fmt; - const struct ov772x_win_size *win; - int model; -}; - -#define ENDMARKER { 0xff, 0xff } - -/* - * register setting for color format - */ -static const struct regval_list ov772x_RGB555_regs[] = { - { COM3, 0x00 }, - { COM7, FMT_RGB555 | OFMT_RGB }, - ENDMARKER, -}; - -static const struct regval_list ov772x_RGB565_regs[] = { - { COM3, 0x00 }, - { COM7, FMT_RGB565 | OFMT_RGB }, - ENDMARKER, -}; - -static const struct regval_list ov772x_YYUV_regs[] = { - { COM3, SWAP_YUV }, - { COM7, OFMT_YUV }, - ENDMARKER, -}; - -static const struct regval_list ov772x_UVYY_regs[] = { - { COM3, 0x00 }, - { COM7, OFMT_YUV }, - ENDMARKER, -}; - - -/* - * register setting for window size - */ -static const struct regval_list ov772x_qvga_regs[] = { - { HSTART, HST_QVGA }, - { HSIZE, HSZ_QVGA }, - { VSTART, VST_QVGA }, - { VSIZE, VSZ_QVGA }, - { HOUTSIZE, HOSZ_QVGA }, - { VOUTSIZE, VOSZ_QVGA }, - ENDMARKER, -}; - -static const struct regval_list ov772x_vga_regs[] = { - { HSTART, HST_VGA }, - { HSIZE, HSZ_VGA }, - { VSTART, VST_VGA }, - { VSIZE, VSZ_VGA }, - { HOUTSIZE, HOSZ_VGA }, - { VOUTSIZE, VOSZ_VGA }, - ENDMARKER, -}; - -/* - * supported format list - */ - -#define SETFOURCC(type) .name = (#type), .fourcc = (V4L2_PIX_FMT_ ## type) -static const struct soc_camera_data_format ov772x_fmt_lists[] = { - { - SETFOURCC(YUYV), - .depth = 16, - .colorspace = V4L2_COLORSPACE_JPEG, - }, - { - SETFOURCC(YVYU), - .depth = 16, - .colorspace = V4L2_COLORSPACE_JPEG, - }, - { - SETFOURCC(UYVY), - .depth = 16, - .colorspace = V4L2_COLORSPACE_JPEG, - }, - { - SETFOURCC(RGB555), - .depth = 16, - .colorspace = V4L2_COLORSPACE_SRGB, - }, - { - SETFOURCC(RGB555X), - .depth = 16, - .colorspace = V4L2_COLORSPACE_SRGB, - }, - { - SETFOURCC(RGB565), - .depth = 16, - .colorspace = V4L2_COLORSPACE_SRGB, - }, - { - SETFOURCC(RGB565X), - .depth = 16, - .colorspace = V4L2_COLORSPACE_SRGB, - }, -}; - -/* - * color format list - */ -#define T_YUYV 0 -static const struct ov772x_color_format ov772x_cfmts[] = { - [T_YUYV] = { - SETFOURCC(YUYV), - .regs = ov772x_YYUV_regs, - }, - { - SETFOURCC(YVYU), - .regs = ov772x_YYUV_regs, - .option = OP_UV, - }, - { - SETFOURCC(UYVY), - .regs = ov772x_UVYY_regs, - }, - { - SETFOURCC(RGB555), - .regs = ov772x_RGB555_regs, - .option = OP_SWAP_RGB, - }, - { - SETFOURCC(RGB555X), - .regs = ov772x_RGB555_regs, - }, - { - SETFOURCC(RGB565), - .regs = ov772x_RGB565_regs, - .option = OP_SWAP_RGB, - }, - { - SETFOURCC(RGB565X), - .regs = ov772x_RGB565_regs, - }, -}; - - -/* - * window size list - */ -#define VGA_WIDTH 640 -#define VGA_HEIGHT 480 -#define QVGA_WIDTH 320 -#define QVGA_HEIGHT 240 -#define MAX_WIDTH VGA_WIDTH -#define MAX_HEIGHT VGA_HEIGHT - -static const struct ov772x_win_size ov772x_win_vga = { - .name = "VGA", - .width = VGA_WIDTH, - .height = VGA_HEIGHT, - .com7_bit = SLCT_VGA, - .regs = ov772x_vga_regs, -}; - -static const struct ov772x_win_size ov772x_win_qvga = { - .name = "QVGA", - .width = QVGA_WIDTH, - .height = QVGA_HEIGHT, - .com7_bit = SLCT_QVGA, - .regs = ov772x_qvga_regs, -}; - - -/* - * general function - */ - -static int ov772x_write_array(struct i2c_client *client, - const struct regval_list *vals) -{ - while (vals->reg_num != 0xff) { - int ret = i2c_smbus_write_byte_data(client, - vals->reg_num, - vals->value); - if (ret < 0) - return ret; - vals++; - } - return 0; -} - -static int ov772x_mask_set(struct i2c_client *client, - u8 command, - u8 mask, - u8 set) -{ - s32 val = i2c_smbus_read_byte_data(client, command); - val &= ~mask; - val |= set; - - return i2c_smbus_write_byte_data(client, command, val); -} - -static int ov772x_reset(struct i2c_client *client) -{ - int ret = i2c_smbus_write_byte_data(client, COM7, SCCB_RESET); - msleep(1); - return ret; -} - -/* - * soc_camera_ops function - */ - -static int ov772x_init(struct soc_camera_device *icd) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - int ret = 0; - - if (priv->info->link.power) { - ret = priv->info->link.power(&priv->client->dev, 1); - if (ret < 0) - return ret; - } - - if (priv->info->link.reset) - ret = priv->info->link.reset(&priv->client->dev); - - return ret; -} - -static int ov772x_release(struct soc_camera_device *icd) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - int ret = 0; - - if (priv->info->link.power) - ret = priv->info->link.power(&priv->client->dev, 0); - - return ret; -} - -static int ov772x_start_capture(struct soc_camera_device *icd) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - int ret; - - if (!priv->win) - priv->win = &ov772x_win_vga; - if (!priv->fmt) - priv->fmt = &ov772x_cfmts[T_YUYV]; - - /* - * reset hardware - */ - ov772x_reset(priv->client); - - /* - * set color format - */ - ret = ov772x_write_array(priv->client, priv->fmt->regs); - if (ret < 0) - goto start_end; - - /* - * set size format - */ - ret = ov772x_write_array(priv->client, priv->win->regs); - if (ret < 0) - goto start_end; - - /* - * set COM7 bit ( QVGA or VGA ) - */ - ret = ov772x_mask_set(priv->client, - COM7, SLCT_MASK, priv->win->com7_bit); - if (ret < 0) - goto start_end; - - /* - * set UV setting - */ - if (priv->fmt->option & OP_UV) { - ret = ov772x_mask_set(priv->client, - DSP_CTRL3, UV_MASK, UV_ON); - if (ret < 0) - goto start_end; - } - - /* - * set SWAP setting - */ - if (priv->fmt->option & OP_SWAP_RGB) { - ret = ov772x_mask_set(priv->client, - COM3, SWAP_MASK, SWAP_RGB); - if (ret < 0) - goto start_end; - } - - dev_dbg(&icd->dev, - "format %s, win %s\n", priv->fmt->name, priv->win->name); - -start_end: - priv->fmt = NULL; - priv->win = NULL; - - return ret; -} - -static int ov772x_stop_capture(struct soc_camera_device *icd) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - ov772x_reset(priv->client); - return 0; -} - -static int ov772x_set_bus_param(struct soc_camera_device *icd, - unsigned long flags) -{ - return 0; -} - -static unsigned long ov772x_query_bus_param(struct soc_camera_device *icd) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - struct soc_camera_link *icl = priv->client->dev.platform_data; - unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER | - SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH | - priv->info->buswidth; - - return soc_camera_apply_sensor_flags(icl, flags); -} - -static int ov772x_get_chip_id(struct soc_camera_device *icd, - struct v4l2_dbg_chip_ident *id) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - - id->ident = priv->model; - id->revision = 0; - - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int ov772x_get_register(struct soc_camera_device *icd, - struct v4l2_dbg_register *reg) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - int ret; - - reg->size = 1; - if (reg->reg > 0xff) - return -EINVAL; - - ret = i2c_smbus_read_byte_data(priv->client, reg->reg); - if (ret < 0) - return ret; - - reg->val = (__u64)ret; - - return 0; -} - -static int ov772x_set_register(struct soc_camera_device *icd, - struct v4l2_dbg_register *reg) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - - if (reg->reg > 0xff || - reg->val > 0xff) - return -EINVAL; - - return i2c_smbus_write_byte_data(priv->client, reg->reg, reg->val); -} -#endif - -static const struct ov772x_win_size* -ov772x_select_win(u32 width, u32 height) -{ - __u32 diff; - const struct ov772x_win_size *win; - - /* default is QVGA */ - diff = abs(width - ov772x_win_qvga.width) + - abs(height - ov772x_win_qvga.height); - win = &ov772x_win_qvga; - - /* VGA */ - if (diff > - abs(width - ov772x_win_vga.width) + - abs(height - ov772x_win_vga.height)) - win = &ov772x_win_vga; - - return win; -} - - -static int ov772x_set_fmt(struct soc_camera_device *icd, - __u32 pixfmt, - struct v4l2_rect *rect) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - int ret = -EINVAL; - int i; - - /* - * select format - */ - priv->fmt = NULL; - for (i = 0; i < ARRAY_SIZE(ov772x_cfmts); i++) { - if (pixfmt == ov772x_cfmts[i].fourcc) { - priv->fmt = ov772x_cfmts + i; - ret = 0; - break; - } - } - - /* - * select win - */ - priv->win = ov772x_select_win(rect->width, rect->height); - - return ret; -} - -static int ov772x_try_fmt(struct soc_camera_device *icd, - struct v4l2_format *f) -{ - struct v4l2_pix_format *pix = &f->fmt.pix; - const struct ov772x_win_size *win; - - /* - * select suitable win - */ - win = ov772x_select_win(pix->width, pix->height); - - pix->width = win->width; - pix->height = win->height; - pix->field = V4L2_FIELD_NONE; - - return 0; -} - -static int ov772x_video_probe(struct soc_camera_device *icd) -{ - struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); - u8 pid, ver; - const char *devname; - - /* - * We must have a parent by now. And it cannot be a wrong one. - * So this entire test is completely redundant. - */ - if (!icd->dev.parent || - to_soc_camera_host(icd->dev.parent)->nr != icd->iface) - return -ENODEV; - - /* - * ov772x only use 8 or 10 bit bus width - */ - if (SOCAM_DATAWIDTH_10 != priv->info->buswidth && - SOCAM_DATAWIDTH_8 != priv->info->buswidth) { - dev_err(&icd->dev, "bus width error\n"); - return -ENODEV; - } - - icd->formats = ov772x_fmt_lists; - icd->num_formats = ARRAY_SIZE(ov772x_fmt_lists); - - /* - * check and show product ID and manufacturer ID - */ - pid = i2c_smbus_read_byte_data(priv->client, PID); - ver = i2c_smbus_read_byte_data(priv->client, VER); - - switch (VERSION(pid, ver)) { - case OV7720: - devname = "ov7720"; - priv->model = V4L2_IDENT_OV7720; - break; - case OV7725: - devname = "ov7725"; - priv->model = V4L2_IDENT_OV7725; - break; - default: - dev_err(&icd->dev, - "Product ID error %x:%x\n", pid, ver); - return -ENODEV; - } - - dev_info(&icd->dev, - "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", - devname, - pid, - ver, - i2c_smbus_read_byte_data(priv->client, MIDH), - i2c_smbus_read_byte_data(priv->client, MIDL)); - - - return soc_camera_video_start(icd); -} - -static void ov772x_video_remove(struct soc_camera_device *icd) -{ - soc_camera_video_stop(icd); -} - -static struct soc_camera_ops ov772x_ops = { - .owner = THIS_MODULE, - .probe = ov772x_video_probe, - .remove = ov772x_video_remove, - .init = ov772x_init, - .release = ov772x_release, - .start_capture = ov772x_start_capture, - .stop_capture = ov772x_stop_capture, - .set_fmt = ov772x_set_fmt, - .try_fmt = ov772x_try_fmt, - .set_bus_param = ov772x_set_bus_param, - .query_bus_param = ov772x_query_bus_param, - .get_chip_id = ov772x_get_chip_id, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .get_register = ov772x_get_register, - .set_register = ov772x_set_register, -#endif -}; - -/* - * i2c_driver function - */ - -static int ov772x_probe(struct i2c_client *client, - const struct i2c_device_id *did) -{ - struct ov772x_priv *priv; - struct ov772x_camera_info *info; - struct soc_camera_device *icd; - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - int ret; - - info = client->dev.platform_data; - if (!info) - return -EINVAL; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - dev_err(&adapter->dev, - "I2C-Adapter doesn't support " - "I2C_FUNC_SMBUS_BYTE_DATA\n"); - return -EIO; - } - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - - priv->info = info; - priv->client = client; - i2c_set_clientdata(client, priv); - - icd = &priv->icd; - icd->ops = &ov772x_ops; - icd->control = &client->dev; - icd->width_max = MAX_WIDTH; - icd->height_max = MAX_HEIGHT; - icd->iface = priv->info->link.bus_id; - - ret = soc_camera_device_register(icd); - - if (ret) { - i2c_set_clientdata(client, NULL); - kfree(priv); - } - - return ret; -} - -static int ov772x_remove(struct i2c_client *client) -{ - struct ov772x_priv *priv = i2c_get_clientdata(client); - - soc_camera_device_unregister(&priv->icd); - i2c_set_clientdata(client, NULL); - kfree(priv); - return 0; -} - -static const struct i2c_device_id ov772x_id[] = { - { "ov772x", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ov772x_id); - -static struct i2c_driver ov772x_i2c_driver = { - .driver = { - .name = "ov772x", - }, - .probe = ov772x_probe, - .remove = ov772x_remove, - .id_table = ov772x_id, -}; - -/* - * module function - */ - -static int __init ov772x_module_init(void) -{ - return i2c_add_driver(&ov772x_i2c_driver); -} - -static void __exit ov772x_module_exit(void) -{ - i2c_del_driver(&ov772x_i2c_driver); -} - -module_init(ov772x_module_init); -module_exit(ov772x_module_exit); - -MODULE_DESCRIPTION("SoC Camera driver for ov772x"); -MODULE_AUTHOR("Kuninori Morimoto"); -MODULE_LICENSE("GPL v2"); |