Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 1 | /* |
| 2 | * ov772x Camera Driver |
| 3 | * |
| 4 | * Copyright (C) 2008 Renesas Solutions Corp. |
| 5 | * Kuninori Morimoto <morimoto.kuninori@renesas.com> |
| 6 | * |
| 7 | * Based on ov7670 and soc_camera_platform driver, |
| 8 | * |
| 9 | * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> |
| 10 | * Copyright (C) 2008 Magnus Damm |
| 11 | * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License version 2 as |
| 15 | * published by the Free Software Foundation. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/i2c.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include <linux/videodev2.h> |
| 24 | #include <media/v4l2-chip-ident.h> |
| 25 | #include <media/v4l2-common.h> |
| 26 | #include <media/soc_camera.h> |
| 27 | #include <media/ov772x.h> |
| 28 | |
| 29 | /* |
| 30 | * register offset |
| 31 | */ |
| 32 | #define GAIN 0x00 /* AGC - Gain control gain setting */ |
| 33 | #define BLUE 0x01 /* AWB - Blue channel gain setting */ |
| 34 | #define RED 0x02 /* AWB - Red channel gain setting */ |
| 35 | #define GREEN 0x03 /* AWB - Green channel gain setting */ |
| 36 | #define COM1 0x04 /* Common control 1 */ |
| 37 | #define BAVG 0x05 /* U/B Average Level */ |
| 38 | #define GAVG 0x06 /* Y/Gb Average Level */ |
| 39 | #define RAVG 0x07 /* V/R Average Level */ |
| 40 | #define AECH 0x08 /* Exposure Value - AEC MSBs */ |
| 41 | #define COM2 0x09 /* Common control 2 */ |
| 42 | #define PID 0x0A /* Product ID Number MSB */ |
| 43 | #define VER 0x0B /* Product ID Number LSB */ |
| 44 | #define COM3 0x0C /* Common control 3 */ |
| 45 | #define COM4 0x0D /* Common control 4 */ |
| 46 | #define COM5 0x0E /* Common control 5 */ |
| 47 | #define COM6 0x0F /* Common control 6 */ |
| 48 | #define AEC 0x10 /* Exposure Value */ |
| 49 | #define CLKRC 0x11 /* Internal clock */ |
| 50 | #define COM7 0x12 /* Common control 7 */ |
| 51 | #define COM8 0x13 /* Common control 8 */ |
| 52 | #define COM9 0x14 /* Common control 9 */ |
| 53 | #define COM10 0x15 /* Common control 10 */ |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 54 | #define REG16 0x16 /* Register 16 */ |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 55 | #define HSTART 0x17 /* Horizontal sensor size */ |
| 56 | #define HSIZE 0x18 /* Horizontal frame (HREF column) end high 8-bit */ |
| 57 | #define VSTART 0x19 /* Vertical frame (row) start high 8-bit */ |
| 58 | #define VSIZE 0x1A /* Vertical sensor size */ |
| 59 | #define PSHFT 0x1B /* Data format - pixel delay select */ |
| 60 | #define MIDH 0x1C /* Manufacturer ID byte - high */ |
| 61 | #define MIDL 0x1D /* Manufacturer ID byte - low */ |
| 62 | #define LAEC 0x1F /* Fine AEC value */ |
| 63 | #define COM11 0x20 /* Common control 11 */ |
| 64 | #define BDBASE 0x22 /* Banding filter Minimum AEC value */ |
| 65 | #define DBSTEP 0x23 /* Banding filter Maximum Setp */ |
| 66 | #define AEW 0x24 /* AGC/AEC - Stable operating region (upper limit) */ |
| 67 | #define AEB 0x25 /* AGC/AEC - Stable operating region (lower limit) */ |
| 68 | #define VPT 0x26 /* AGC/AEC Fast mode operating region */ |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 69 | #define REG28 0x28 /* Register 28 */ |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 70 | #define HOUTSIZE 0x29 /* Horizontal data output size MSBs */ |
| 71 | #define EXHCH 0x2A /* Dummy pixel insert MSB */ |
| 72 | #define EXHCL 0x2B /* Dummy pixel insert LSB */ |
| 73 | #define VOUTSIZE 0x2C /* Vertical data output size MSBs */ |
| 74 | #define ADVFL 0x2D /* LSB of insert dummy lines in Vertical direction */ |
| 75 | #define ADVFH 0x2E /* MSG of insert dummy lines in Vertical direction */ |
| 76 | #define YAVE 0x2F /* Y/G Channel Average value */ |
| 77 | #define LUMHTH 0x30 /* Histogram AEC/AGC Luminance high level threshold */ |
| 78 | #define LUMLTH 0x31 /* Histogram AEC/AGC Luminance low level threshold */ |
| 79 | #define HREF 0x32 /* Image start and size control */ |
| 80 | #define DM_LNL 0x33 /* Dummy line low 8 bits */ |
| 81 | #define DM_LNH 0x34 /* Dummy line high 8 bits */ |
| 82 | #define ADOFF_B 0x35 /* AD offset compensation value for B channel */ |
| 83 | #define ADOFF_R 0x36 /* AD offset compensation value for R channel */ |
| 84 | #define ADOFF_GB 0x37 /* AD offset compensation value for Gb channel */ |
| 85 | #define ADOFF_GR 0x38 /* AD offset compensation value for Gr channel */ |
| 86 | #define OFF_B 0x39 /* Analog process B channel offset value */ |
| 87 | #define OFF_R 0x3A /* Analog process R channel offset value */ |
| 88 | #define OFF_GB 0x3B /* Analog process Gb channel offset value */ |
| 89 | #define OFF_GR 0x3C /* Analog process Gr channel offset value */ |
| 90 | #define COM12 0x3D /* Common control 12 */ |
| 91 | #define COM13 0x3E /* Common control 13 */ |
| 92 | #define COM14 0x3F /* Common control 14 */ |
| 93 | #define COM15 0x40 /* Common control 15*/ |
| 94 | #define COM16 0x41 /* Common control 16 */ |
| 95 | #define TGT_B 0x42 /* BLC blue channel target value */ |
| 96 | #define TGT_R 0x43 /* BLC red channel target value */ |
| 97 | #define TGT_GB 0x44 /* BLC Gb channel target value */ |
| 98 | #define TGT_GR 0x45 /* BLC Gr channel target value */ |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 99 | /* for ov7720 */ |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 100 | #define LCC0 0x46 /* Lens correction control 0 */ |
| 101 | #define LCC1 0x47 /* Lens correction option 1 - X coordinate */ |
| 102 | #define LCC2 0x48 /* Lens correction option 2 - Y coordinate */ |
| 103 | #define LCC3 0x49 /* Lens correction option 3 */ |
| 104 | #define LCC4 0x4A /* Lens correction option 4 - radius of the circular */ |
| 105 | #define LCC5 0x4B /* Lens correction option 5 */ |
| 106 | #define LCC6 0x4C /* Lens correction option 6 */ |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 107 | /* for ov7725 */ |
| 108 | #define LC_CTR 0x46 /* Lens correction control */ |
| 109 | #define LC_XC 0x47 /* X coordinate of lens correction center relative */ |
| 110 | #define LC_YC 0x48 /* Y coordinate of lens correction center relative */ |
| 111 | #define LC_COEF 0x49 /* Lens correction coefficient */ |
| 112 | #define LC_RADI 0x4A /* Lens correction radius */ |
| 113 | #define LC_COEFB 0x4B /* Lens B channel compensation coefficient */ |
| 114 | #define LC_COEFR 0x4C /* Lens R channel compensation coefficient */ |
| 115 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 116 | #define FIXGAIN 0x4D /* Analog fix gain amplifer */ |
| 117 | #define AREF0 0x4E /* Sensor reference control */ |
| 118 | #define AREF1 0x4F /* Sensor reference current control */ |
| 119 | #define AREF2 0x50 /* Analog reference control */ |
| 120 | #define AREF3 0x51 /* ADC reference control */ |
| 121 | #define AREF4 0x52 /* ADC reference control */ |
| 122 | #define AREF5 0x53 /* ADC reference control */ |
| 123 | #define AREF6 0x54 /* Analog reference control */ |
| 124 | #define AREF7 0x55 /* Analog reference control */ |
| 125 | #define UFIX 0x60 /* U channel fixed value output */ |
| 126 | #define VFIX 0x61 /* V channel fixed value output */ |
Kuninori Morimoto | b3d7b2a | 2008-12-01 09:44:51 -0300 | [diff] [blame] | 127 | #define AWBB_BLK 0x62 /* AWB option for advanced AWB */ |
| 128 | #define AWB_CTRL0 0x63 /* AWB control byte 0 */ |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 129 | #define DSP_CTRL1 0x64 /* DSP control byte 1 */ |
| 130 | #define DSP_CTRL2 0x65 /* DSP control byte 2 */ |
| 131 | #define DSP_CTRL3 0x66 /* DSP control byte 3 */ |
| 132 | #define DSP_CTRL4 0x67 /* DSP control byte 4 */ |
Kuninori Morimoto | b3d7b2a | 2008-12-01 09:44:51 -0300 | [diff] [blame] | 133 | #define AWB_BIAS 0x68 /* AWB BLC level clip */ |
| 134 | #define AWB_CTRL1 0x69 /* AWB control 1 */ |
| 135 | #define AWB_CTRL2 0x6A /* AWB control 2 */ |
| 136 | #define AWB_CTRL3 0x6B /* AWB control 3 */ |
| 137 | #define AWB_CTRL4 0x6C /* AWB control 4 */ |
| 138 | #define AWB_CTRL5 0x6D /* AWB control 5 */ |
| 139 | #define AWB_CTRL6 0x6E /* AWB control 6 */ |
| 140 | #define AWB_CTRL7 0x6F /* AWB control 7 */ |
| 141 | #define AWB_CTRL8 0x70 /* AWB control 8 */ |
| 142 | #define AWB_CTRL9 0x71 /* AWB control 9 */ |
| 143 | #define AWB_CTRL10 0x72 /* AWB control 10 */ |
| 144 | #define AWB_CTRL11 0x73 /* AWB control 11 */ |
| 145 | #define AWB_CTRL12 0x74 /* AWB control 12 */ |
| 146 | #define AWB_CTRL13 0x75 /* AWB control 13 */ |
| 147 | #define AWB_CTRL14 0x76 /* AWB control 14 */ |
| 148 | #define AWB_CTRL15 0x77 /* AWB control 15 */ |
| 149 | #define AWB_CTRL16 0x78 /* AWB control 16 */ |
| 150 | #define AWB_CTRL17 0x79 /* AWB control 17 */ |
| 151 | #define AWB_CTRL18 0x7A /* AWB control 18 */ |
| 152 | #define AWB_CTRL19 0x7B /* AWB control 19 */ |
| 153 | #define AWB_CTRL20 0x7C /* AWB control 20 */ |
| 154 | #define AWB_CTRL21 0x7D /* AWB control 21 */ |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 155 | #define GAM1 0x7E /* Gamma Curve 1st segment input end point */ |
| 156 | #define GAM2 0x7F /* Gamma Curve 2nd segment input end point */ |
| 157 | #define GAM3 0x80 /* Gamma Curve 3rd segment input end point */ |
| 158 | #define GAM4 0x81 /* Gamma Curve 4th segment input end point */ |
| 159 | #define GAM5 0x82 /* Gamma Curve 5th segment input end point */ |
| 160 | #define GAM6 0x83 /* Gamma Curve 6th segment input end point */ |
| 161 | #define GAM7 0x84 /* Gamma Curve 7th segment input end point */ |
| 162 | #define GAM8 0x85 /* Gamma Curve 8th segment input end point */ |
| 163 | #define GAM9 0x86 /* Gamma Curve 9th segment input end point */ |
| 164 | #define GAM10 0x87 /* Gamma Curve 10th segment input end point */ |
| 165 | #define GAM11 0x88 /* Gamma Curve 11th segment input end point */ |
| 166 | #define GAM12 0x89 /* Gamma Curve 12th segment input end point */ |
| 167 | #define GAM13 0x8A /* Gamma Curve 13th segment input end point */ |
| 168 | #define GAM14 0x8B /* Gamma Curve 14th segment input end point */ |
| 169 | #define GAM15 0x8C /* Gamma Curve 15th segment input end point */ |
| 170 | #define SLOP 0x8D /* Gamma curve highest segment slope */ |
| 171 | #define DNSTH 0x8E /* De-noise threshold */ |
| 172 | #define EDGE0 0x8F /* Edge enhancement control 0 */ |
| 173 | #define EDGE1 0x90 /* Edge enhancement control 1 */ |
| 174 | #define DNSOFF 0x91 /* Auto De-noise threshold control */ |
| 175 | #define EDGE2 0x92 /* Edge enhancement strength low point control */ |
| 176 | #define EDGE3 0x93 /* Edge enhancement strength high point control */ |
| 177 | #define MTX1 0x94 /* Matrix coefficient 1 */ |
| 178 | #define MTX2 0x95 /* Matrix coefficient 2 */ |
| 179 | #define MTX3 0x96 /* Matrix coefficient 3 */ |
| 180 | #define MTX4 0x97 /* Matrix coefficient 4 */ |
| 181 | #define MTX5 0x98 /* Matrix coefficient 5 */ |
| 182 | #define MTX6 0x99 /* Matrix coefficient 6 */ |
| 183 | #define MTX_CTRL 0x9A /* Matrix control */ |
| 184 | #define BRIGHT 0x9B /* Brightness control */ |
| 185 | #define CNTRST 0x9C /* Contrast contrast */ |
| 186 | #define CNTRST_CTRL 0x9D /* Contrast contrast center */ |
| 187 | #define UVAD_J0 0x9E /* Auto UV adjust contrast 0 */ |
| 188 | #define UVAD_J1 0x9F /* Auto UV adjust contrast 1 */ |
| 189 | #define SCAL0 0xA0 /* Scaling control 0 */ |
| 190 | #define SCAL1 0xA1 /* Scaling control 1 */ |
| 191 | #define SCAL2 0xA2 /* Scaling control 2 */ |
| 192 | #define FIFODLYM 0xA3 /* FIFO manual mode delay control */ |
| 193 | #define FIFODLYA 0xA4 /* FIFO auto mode delay control */ |
| 194 | #define SDE 0xA6 /* Special digital effect control */ |
| 195 | #define USAT 0xA7 /* U component saturation control */ |
| 196 | #define VSAT 0xA8 /* V component saturation control */ |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 197 | /* for ov7720 */ |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 198 | #define HUE0 0xA9 /* Hue control 0 */ |
| 199 | #define HUE1 0xAA /* Hue control 1 */ |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 200 | /* for ov7725 */ |
| 201 | #define HUECOS 0xA9 /* Cosine value */ |
| 202 | #define HUESIN 0xAA /* Sine value */ |
| 203 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 204 | #define SIGN 0xAB /* Sign bit for Hue and contrast */ |
| 205 | #define DSPAUTO 0xAC /* DSP auto function ON/OFF control */ |
| 206 | |
| 207 | /* |
| 208 | * register detail |
| 209 | */ |
| 210 | |
| 211 | /* COM2 */ |
| 212 | #define SOFT_SLEEP_MODE 0x10 /* Soft sleep mode */ |
| 213 | /* Output drive capability */ |
| 214 | #define OCAP_1x 0x00 /* 1x */ |
| 215 | #define OCAP_2x 0x01 /* 2x */ |
| 216 | #define OCAP_3x 0x02 /* 3x */ |
| 217 | #define OCAP_4x 0x03 /* 4x */ |
| 218 | |
| 219 | /* COM3 */ |
| 220 | #define SWAP_MASK 0x38 |
| 221 | |
| 222 | #define VFIMG_ON_OFF 0x80 /* Vertical flip image ON/OFF selection */ |
| 223 | #define HMIMG_ON_OFF 0x40 /* Horizontal mirror image ON/OFF selection */ |
| 224 | #define SWAP_RGB 0x20 /* Swap B/R output sequence in RGB mode */ |
| 225 | #define SWAP_YUV 0x10 /* Swap Y/UV output sequence in YUV mode */ |
| 226 | #define SWAP_ML 0x08 /* Swap output MSB/LSB */ |
| 227 | /* Tri-state option for output clock */ |
| 228 | #define NOTRI_CLOCK 0x04 /* 0: Tri-state at this period */ |
| 229 | /* 1: No tri-state at this period */ |
| 230 | /* Tri-state option for output data */ |
| 231 | #define NOTRI_DATA 0x02 /* 0: Tri-state at this period */ |
| 232 | /* 1: No tri-state at this period */ |
| 233 | #define SCOLOR_TEST 0x01 /* Sensor color bar test pattern */ |
| 234 | |
| 235 | /* COM4 */ |
| 236 | /* PLL frequency control */ |
| 237 | #define PLL_BYPASS 0x00 /* 00: Bypass PLL */ |
| 238 | #define PLL_4x 0x40 /* 01: PLL 4x */ |
| 239 | #define PLL_6x 0x80 /* 10: PLL 6x */ |
| 240 | #define PLL_8x 0xc0 /* 11: PLL 8x */ |
| 241 | /* AEC evaluate window */ |
| 242 | #define AEC_FULL 0x00 /* 00: Full window */ |
| 243 | #define AEC_1p2 0x10 /* 01: 1/2 window */ |
| 244 | #define AEC_1p4 0x20 /* 10: 1/4 window */ |
| 245 | #define AEC_2p3 0x30 /* 11: Low 2/3 window */ |
| 246 | |
| 247 | /* COM5 */ |
| 248 | #define AFR_ON_OFF 0x80 /* Auto frame rate control ON/OFF selection */ |
| 249 | #define AFR_SPPED 0x40 /* Auto frame rate control speed slection */ |
| 250 | /* Auto frame rate max rate control */ |
| 251 | #define AFR_NO_RATE 0x00 /* No reduction of frame rate */ |
| 252 | #define AFR_1p2 0x10 /* Max reduction to 1/2 frame rate */ |
| 253 | #define AFR_1p4 0x20 /* Max reduction to 1/4 frame rate */ |
| 254 | #define AFR_1p8 0x30 /* Max reduction to 1/8 frame rate */ |
| 255 | /* Auto frame rate active point control */ |
| 256 | #define AF_2x 0x00 /* Add frame when AGC reaches 2x gain */ |
| 257 | #define AF_4x 0x04 /* Add frame when AGC reaches 4x gain */ |
| 258 | #define AF_8x 0x08 /* Add frame when AGC reaches 8x gain */ |
| 259 | #define AF_16x 0x0c /* Add frame when AGC reaches 16x gain */ |
| 260 | /* AEC max step control */ |
| 261 | #define AEC_NO_LIMIT 0x01 /* 0 : AEC incease step has limit */ |
| 262 | /* 1 : No limit to AEC increase step */ |
| 263 | |
| 264 | /* COM7 */ |
| 265 | /* SCCB Register Reset */ |
| 266 | #define SCCB_RESET 0x80 /* 0 : No change */ |
| 267 | /* 1 : Resets all registers to default */ |
| 268 | /* Resolution selection */ |
| 269 | #define SLCT_MASK 0x40 /* Mask of VGA or QVGA */ |
| 270 | #define SLCT_VGA 0x00 /* 0 : VGA */ |
| 271 | #define SLCT_QVGA 0x40 /* 1 : QVGA */ |
| 272 | #define ITU656_ON_OFF 0x20 /* ITU656 protocol ON/OFF selection */ |
| 273 | /* RGB output format control */ |
| 274 | #define FMT_GBR422 0x00 /* 00 : GBR 4:2:2 */ |
| 275 | #define FMT_RGB565 0x04 /* 01 : RGB 565 */ |
| 276 | #define FMT_RGB555 0x08 /* 10 : RGB 555 */ |
| 277 | #define FMT_RGB444 0x0c /* 11 : RGB 444 */ |
| 278 | /* Output format control */ |
| 279 | #define OFMT_YUV 0x00 /* 00 : YUV */ |
| 280 | #define OFMT_P_BRAW 0x01 /* 01 : Processed Bayer RAW */ |
| 281 | #define OFMT_RGB 0x02 /* 10 : RGB */ |
| 282 | #define OFMT_BRAW 0x03 /* 11 : Bayer RAW */ |
| 283 | |
| 284 | /* COM8 */ |
| 285 | #define FAST_ALGO 0x80 /* Enable fast AGC/AEC algorithm */ |
| 286 | /* AEC Setp size limit */ |
| 287 | #define UNLMT_STEP 0x40 /* 0 : Step size is limited */ |
| 288 | /* 1 : Unlimited step size */ |
| 289 | #define BNDF_ON_OFF 0x20 /* Banding filter ON/OFF */ |
| 290 | #define AEC_BND 0x10 /* Enable AEC below banding value */ |
| 291 | #define AEC_ON_OFF 0x08 /* Fine AEC ON/OFF control */ |
| 292 | #define AGC_ON 0x04 /* AGC Enable */ |
| 293 | #define AWB_ON 0x02 /* AWB Enable */ |
| 294 | #define AEC_ON 0x01 /* AEC Enable */ |
| 295 | |
| 296 | /* COM9 */ |
| 297 | #define BASE_AECAGC 0x80 /* Histogram or average based AEC/AGC */ |
| 298 | /* Automatic gain ceiling - maximum AGC value */ |
| 299 | #define GAIN_2x 0x00 /* 000 : 2x */ |
| 300 | #define GAIN_4x 0x10 /* 001 : 4x */ |
| 301 | #define GAIN_8x 0x20 /* 010 : 8x */ |
| 302 | #define GAIN_16x 0x30 /* 011 : 16x */ |
| 303 | #define GAIN_32x 0x40 /* 100 : 32x */ |
| 304 | #define GAIN_64x 0x50 /* 101 : 64x */ |
| 305 | #define GAIN_128x 0x60 /* 110 : 128x */ |
| 306 | #define DROP_VSYNC 0x04 /* Drop VSYNC output of corrupt frame */ |
| 307 | #define DROP_HREF 0x02 /* Drop HREF output of corrupt frame */ |
| 308 | |
| 309 | /* COM11 */ |
| 310 | #define SGLF_ON_OFF 0x02 /* Single frame ON/OFF selection */ |
| 311 | #define SGLF_TRIG 0x01 /* Single frame transfer trigger */ |
| 312 | |
| 313 | /* EXHCH */ |
| 314 | #define VSIZE_LSB 0x04 /* Vertical data output size LSB */ |
| 315 | |
| 316 | /* DSP_CTRL1 */ |
| 317 | #define FIFO_ON 0x80 /* FIFO enable/disable selection */ |
| 318 | #define UV_ON_OFF 0x40 /* UV adjust function ON/OFF selection */ |
| 319 | #define YUV444_2_422 0x20 /* YUV444 to 422 UV channel option selection */ |
| 320 | #define CLR_MTRX_ON_OFF 0x10 /* Color matrix ON/OFF selection */ |
| 321 | #define INTPLT_ON_OFF 0x08 /* Interpolation ON/OFF selection */ |
| 322 | #define GMM_ON_OFF 0x04 /* Gamma function ON/OFF selection */ |
| 323 | #define AUTO_BLK_ON_OFF 0x02 /* Black defect auto correction ON/OFF */ |
| 324 | #define AUTO_WHT_ON_OFF 0x01 /* White define auto correction ON/OFF */ |
| 325 | |
| 326 | /* DSP_CTRL3 */ |
| 327 | #define UV_MASK 0x80 /* UV output sequence option */ |
| 328 | #define UV_ON 0x80 /* ON */ |
| 329 | #define UV_OFF 0x00 /* OFF */ |
| 330 | #define CBAR_MASK 0x20 /* DSP Color bar mask */ |
| 331 | #define CBAR_ON 0x20 /* ON */ |
| 332 | #define CBAR_OFF 0x00 /* OFF */ |
| 333 | |
| 334 | /* HSTART */ |
| 335 | #define HST_VGA 0x23 |
| 336 | #define HST_QVGA 0x3F |
| 337 | |
| 338 | /* HSIZE */ |
| 339 | #define HSZ_VGA 0xA0 |
| 340 | #define HSZ_QVGA 0x50 |
| 341 | |
| 342 | /* VSTART */ |
| 343 | #define VST_VGA 0x07 |
| 344 | #define VST_QVGA 0x03 |
| 345 | |
| 346 | /* VSIZE */ |
| 347 | #define VSZ_VGA 0xF0 |
| 348 | #define VSZ_QVGA 0x78 |
| 349 | |
| 350 | /* HOUTSIZE */ |
| 351 | #define HOSZ_VGA 0xA0 |
| 352 | #define HOSZ_QVGA 0x50 |
| 353 | |
| 354 | /* VOUTSIZE */ |
| 355 | #define VOSZ_VGA 0xF0 |
| 356 | #define VOSZ_QVGA 0x78 |
| 357 | |
| 358 | /* |
| 359 | * bit configure (32 bit) |
| 360 | * this is used in struct ov772x_color_format :: option |
| 361 | */ |
| 362 | #define OP_UV 0x00000001 |
| 363 | #define OP_SWAP_RGB 0x00000002 |
| 364 | |
| 365 | /* |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 366 | * ID |
| 367 | */ |
| 368 | #define OV7720 0x7720 |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 369 | #define OV7725 0x7721 |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 370 | #define VERSION(pid, ver) ((pid<<8)|(ver&0xFF)) |
| 371 | |
| 372 | /* |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 373 | * struct |
| 374 | */ |
| 375 | struct regval_list { |
| 376 | unsigned char reg_num; |
| 377 | unsigned char value; |
| 378 | }; |
| 379 | |
| 380 | struct ov772x_color_format { |
| 381 | char *name; |
| 382 | __u32 fourcc; |
| 383 | const struct regval_list *regs; |
| 384 | unsigned int option; |
| 385 | }; |
| 386 | |
| 387 | struct ov772x_win_size { |
| 388 | char *name; |
| 389 | __u32 width; |
| 390 | __u32 height; |
| 391 | unsigned char com7_bit; |
| 392 | const struct regval_list *regs; |
| 393 | }; |
| 394 | |
| 395 | struct ov772x_priv { |
| 396 | struct ov772x_camera_info *info; |
| 397 | struct i2c_client *client; |
| 398 | struct soc_camera_device icd; |
| 399 | const struct ov772x_color_format *fmt; |
| 400 | const struct ov772x_win_size *win; |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 401 | int model; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 402 | }; |
| 403 | |
| 404 | #define ENDMARKER { 0xff, 0xff } |
| 405 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 406 | /* |
| 407 | * register setting for color format |
| 408 | */ |
| 409 | static const struct regval_list ov772x_RGB555_regs[] = { |
Kuninori Morimoto | 2d42513 | 2008-12-17 14:05:45 -0300 | [diff] [blame] | 410 | { COM3, 0x00 }, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 411 | { COM7, FMT_RGB555 | OFMT_RGB }, |
| 412 | ENDMARKER, |
| 413 | }; |
| 414 | |
| 415 | static const struct regval_list ov772x_RGB565_regs[] = { |
Kuninori Morimoto | 2d42513 | 2008-12-17 14:05:45 -0300 | [diff] [blame] | 416 | { COM3, 0x00 }, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 417 | { COM7, FMT_RGB565 | OFMT_RGB }, |
| 418 | ENDMARKER, |
| 419 | }; |
| 420 | |
| 421 | static const struct regval_list ov772x_YYUV_regs[] = { |
| 422 | { COM3, SWAP_YUV }, |
| 423 | { COM7, OFMT_YUV }, |
| 424 | ENDMARKER, |
| 425 | }; |
| 426 | |
| 427 | static const struct regval_list ov772x_UVYY_regs[] = { |
Kuninori Morimoto | 2d42513 | 2008-12-17 14:05:45 -0300 | [diff] [blame] | 428 | { COM3, 0x00 }, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 429 | { COM7, OFMT_YUV }, |
| 430 | ENDMARKER, |
| 431 | }; |
| 432 | |
| 433 | |
| 434 | /* |
| 435 | * register setting for window size |
| 436 | */ |
| 437 | static const struct regval_list ov772x_qvga_regs[] = { |
| 438 | { HSTART, HST_QVGA }, |
| 439 | { HSIZE, HSZ_QVGA }, |
| 440 | { VSTART, VST_QVGA }, |
| 441 | { VSIZE, VSZ_QVGA }, |
| 442 | { HOUTSIZE, HOSZ_QVGA }, |
| 443 | { VOUTSIZE, VOSZ_QVGA }, |
| 444 | ENDMARKER, |
| 445 | }; |
| 446 | |
| 447 | static const struct regval_list ov772x_vga_regs[] = { |
| 448 | { HSTART, HST_VGA }, |
| 449 | { HSIZE, HSZ_VGA }, |
| 450 | { VSTART, VST_VGA }, |
| 451 | { VSIZE, VSZ_VGA }, |
| 452 | { HOUTSIZE, HOSZ_VGA }, |
| 453 | { VOUTSIZE, VOSZ_VGA }, |
| 454 | ENDMARKER, |
| 455 | }; |
| 456 | |
| 457 | /* |
| 458 | * supported format list |
| 459 | */ |
| 460 | |
| 461 | #define SETFOURCC(type) .name = (#type), .fourcc = (V4L2_PIX_FMT_ ## type) |
| 462 | static const struct soc_camera_data_format ov772x_fmt_lists[] = { |
| 463 | { |
| 464 | SETFOURCC(YUYV), |
| 465 | .depth = 16, |
| 466 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 467 | }, |
| 468 | { |
| 469 | SETFOURCC(YVYU), |
| 470 | .depth = 16, |
| 471 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 472 | }, |
| 473 | { |
| 474 | SETFOURCC(UYVY), |
| 475 | .depth = 16, |
| 476 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 477 | }, |
| 478 | { |
| 479 | SETFOURCC(RGB555), |
| 480 | .depth = 16, |
| 481 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 482 | }, |
| 483 | { |
| 484 | SETFOURCC(RGB555X), |
| 485 | .depth = 16, |
| 486 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 487 | }, |
| 488 | { |
| 489 | SETFOURCC(RGB565), |
| 490 | .depth = 16, |
| 491 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 492 | }, |
| 493 | { |
| 494 | SETFOURCC(RGB565X), |
| 495 | .depth = 16, |
| 496 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 497 | }, |
| 498 | }; |
| 499 | |
| 500 | /* |
| 501 | * color format list |
| 502 | */ |
| 503 | #define T_YUYV 0 |
| 504 | static const struct ov772x_color_format ov772x_cfmts[] = { |
| 505 | [T_YUYV] = { |
| 506 | SETFOURCC(YUYV), |
| 507 | .regs = ov772x_YYUV_regs, |
| 508 | }, |
| 509 | { |
| 510 | SETFOURCC(YVYU), |
| 511 | .regs = ov772x_YYUV_regs, |
| 512 | .option = OP_UV, |
| 513 | }, |
| 514 | { |
| 515 | SETFOURCC(UYVY), |
| 516 | .regs = ov772x_UVYY_regs, |
| 517 | }, |
| 518 | { |
| 519 | SETFOURCC(RGB555), |
| 520 | .regs = ov772x_RGB555_regs, |
| 521 | .option = OP_SWAP_RGB, |
| 522 | }, |
| 523 | { |
| 524 | SETFOURCC(RGB555X), |
| 525 | .regs = ov772x_RGB555_regs, |
| 526 | }, |
| 527 | { |
| 528 | SETFOURCC(RGB565), |
| 529 | .regs = ov772x_RGB565_regs, |
| 530 | .option = OP_SWAP_RGB, |
| 531 | }, |
| 532 | { |
| 533 | SETFOURCC(RGB565X), |
| 534 | .regs = ov772x_RGB565_regs, |
| 535 | }, |
| 536 | }; |
| 537 | |
| 538 | |
| 539 | /* |
| 540 | * window size list |
| 541 | */ |
| 542 | #define VGA_WIDTH 640 |
| 543 | #define VGA_HEIGHT 480 |
| 544 | #define QVGA_WIDTH 320 |
| 545 | #define QVGA_HEIGHT 240 |
| 546 | #define MAX_WIDTH VGA_WIDTH |
| 547 | #define MAX_HEIGHT VGA_HEIGHT |
| 548 | |
| 549 | static const struct ov772x_win_size ov772x_win_vga = { |
| 550 | .name = "VGA", |
| 551 | .width = VGA_WIDTH, |
| 552 | .height = VGA_HEIGHT, |
| 553 | .com7_bit = SLCT_VGA, |
| 554 | .regs = ov772x_vga_regs, |
| 555 | }; |
| 556 | |
| 557 | static const struct ov772x_win_size ov772x_win_qvga = { |
| 558 | .name = "QVGA", |
| 559 | .width = QVGA_WIDTH, |
| 560 | .height = QVGA_HEIGHT, |
| 561 | .com7_bit = SLCT_QVGA, |
| 562 | .regs = ov772x_qvga_regs, |
| 563 | }; |
| 564 | |
| 565 | |
| 566 | /* |
| 567 | * general function |
| 568 | */ |
| 569 | |
| 570 | static int ov772x_write_array(struct i2c_client *client, |
| 571 | const struct regval_list *vals) |
| 572 | { |
| 573 | while (vals->reg_num != 0xff) { |
| 574 | int ret = i2c_smbus_write_byte_data(client, |
| 575 | vals->reg_num, |
| 576 | vals->value); |
| 577 | if (ret < 0) |
| 578 | return ret; |
| 579 | vals++; |
| 580 | } |
| 581 | return 0; |
| 582 | } |
| 583 | |
| 584 | static int ov772x_mask_set(struct i2c_client *client, |
| 585 | u8 command, |
| 586 | u8 mask, |
| 587 | u8 set) |
| 588 | { |
| 589 | s32 val = i2c_smbus_read_byte_data(client, command); |
| 590 | val &= ~mask; |
| 591 | val |= set; |
| 592 | |
| 593 | return i2c_smbus_write_byte_data(client, command, val); |
| 594 | } |
| 595 | |
| 596 | static int ov772x_reset(struct i2c_client *client) |
| 597 | { |
| 598 | int ret = i2c_smbus_write_byte_data(client, COM7, SCCB_RESET); |
| 599 | msleep(1); |
| 600 | return ret; |
| 601 | } |
| 602 | |
| 603 | /* |
| 604 | * soc_camera_ops function |
| 605 | */ |
| 606 | |
| 607 | static int ov772x_init(struct soc_camera_device *icd) |
| 608 | { |
Kuninori Morimoto | b90c032 | 2008-12-01 09:44:48 -0300 | [diff] [blame] | 609 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 610 | int ret = 0; |
| 611 | |
| 612 | if (priv->info->link.power) { |
| 613 | ret = priv->info->link.power(&priv->client->dev, 1); |
| 614 | if (ret < 0) |
| 615 | return ret; |
| 616 | } |
| 617 | |
| 618 | if (priv->info->link.reset) |
| 619 | ret = priv->info->link.reset(&priv->client->dev); |
| 620 | |
| 621 | return ret; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 622 | } |
| 623 | |
| 624 | static int ov772x_release(struct soc_camera_device *icd) |
| 625 | { |
Kuninori Morimoto | b90c032 | 2008-12-01 09:44:48 -0300 | [diff] [blame] | 626 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 627 | int ret = 0; |
| 628 | |
| 629 | if (priv->info->link.power) |
| 630 | ret = priv->info->link.power(&priv->client->dev, 0); |
| 631 | |
| 632 | return ret; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 633 | } |
| 634 | |
| 635 | static int ov772x_start_capture(struct soc_camera_device *icd) |
| 636 | { |
| 637 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 638 | int ret; |
| 639 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 640 | if (!priv->win) |
| 641 | priv->win = &ov772x_win_vga; |
| 642 | if (!priv->fmt) |
| 643 | priv->fmt = &ov772x_cfmts[T_YUYV]; |
| 644 | |
| 645 | /* |
| 646 | * reset hardware |
| 647 | */ |
| 648 | ov772x_reset(priv->client); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 649 | |
| 650 | /* |
| 651 | * set color format |
| 652 | */ |
| 653 | ret = ov772x_write_array(priv->client, priv->fmt->regs); |
| 654 | if (ret < 0) |
| 655 | goto start_end; |
| 656 | |
| 657 | /* |
| 658 | * set size format |
| 659 | */ |
| 660 | ret = ov772x_write_array(priv->client, priv->win->regs); |
| 661 | if (ret < 0) |
| 662 | goto start_end; |
| 663 | |
| 664 | /* |
| 665 | * set COM7 bit ( QVGA or VGA ) |
| 666 | */ |
| 667 | ret = ov772x_mask_set(priv->client, |
| 668 | COM7, SLCT_MASK, priv->win->com7_bit); |
| 669 | if (ret < 0) |
| 670 | goto start_end; |
| 671 | |
| 672 | /* |
| 673 | * set UV setting |
| 674 | */ |
| 675 | if (priv->fmt->option & OP_UV) { |
| 676 | ret = ov772x_mask_set(priv->client, |
| 677 | DSP_CTRL3, UV_MASK, UV_ON); |
| 678 | if (ret < 0) |
| 679 | goto start_end; |
| 680 | } |
| 681 | |
| 682 | /* |
| 683 | * set SWAP setting |
| 684 | */ |
| 685 | if (priv->fmt->option & OP_SWAP_RGB) { |
| 686 | ret = ov772x_mask_set(priv->client, |
| 687 | COM3, SWAP_MASK, SWAP_RGB); |
| 688 | if (ret < 0) |
| 689 | goto start_end; |
| 690 | } |
| 691 | |
Kuninori Morimoto | 7dcb212 | 2008-12-29 06:04:22 -0300 | [diff] [blame] | 692 | dev_dbg(&icd->dev, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 693 | "format %s, win %s\n", priv->fmt->name, priv->win->name); |
| 694 | |
| 695 | start_end: |
| 696 | priv->fmt = NULL; |
| 697 | priv->win = NULL; |
| 698 | |
| 699 | return ret; |
| 700 | } |
| 701 | |
| 702 | static int ov772x_stop_capture(struct soc_camera_device *icd) |
| 703 | { |
| 704 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 705 | ov772x_reset(priv->client); |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | static int ov772x_set_bus_param(struct soc_camera_device *icd, |
| 710 | unsigned long flags) |
| 711 | { |
| 712 | return 0; |
| 713 | } |
| 714 | |
| 715 | static unsigned long ov772x_query_bus_param(struct soc_camera_device *icd) |
| 716 | { |
| 717 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
Guennadi Liakhovetski | bd73b36 | 2008-12-23 05:54:45 -0300 | [diff] [blame] | 718 | struct soc_camera_link *icl = priv->client->dev.platform_data; |
| 719 | unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER | |
| 720 | SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 721 | priv->info->buswidth; |
Guennadi Liakhovetski | bd73b36 | 2008-12-23 05:54:45 -0300 | [diff] [blame] | 722 | |
| 723 | return soc_camera_apply_sensor_flags(icl, flags); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 724 | } |
| 725 | |
| 726 | static int ov772x_get_chip_id(struct soc_camera_device *icd, |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 727 | struct v4l2_dbg_chip_ident *id) |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 728 | { |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 729 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 730 | |
| 731 | id->ident = priv->model; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 732 | id->revision = 0; |
| 733 | |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 738 | static int ov772x_get_register(struct soc_camera_device *icd, |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 739 | struct v4l2_dbg_register *reg) |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 740 | { |
| 741 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 742 | int ret; |
| 743 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 744 | reg->size = 1; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 745 | if (reg->reg > 0xff) |
| 746 | return -EINVAL; |
| 747 | |
| 748 | ret = i2c_smbus_read_byte_data(priv->client, reg->reg); |
| 749 | if (ret < 0) |
| 750 | return ret; |
| 751 | |
| 752 | reg->val = (__u64)ret; |
| 753 | |
| 754 | return 0; |
| 755 | } |
| 756 | |
| 757 | static int ov772x_set_register(struct soc_camera_device *icd, |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 758 | struct v4l2_dbg_register *reg) |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 759 | { |
| 760 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 761 | |
| 762 | if (reg->reg > 0xff || |
| 763 | reg->val > 0xff) |
| 764 | return -EINVAL; |
| 765 | |
| 766 | return i2c_smbus_write_byte_data(priv->client, reg->reg, reg->val); |
| 767 | } |
| 768 | #endif |
| 769 | |
Kuninori Morimoto | f82a856 | 2008-12-29 06:04:44 -0300 | [diff] [blame] | 770 | static const struct ov772x_win_size* |
| 771 | ov772x_select_win(u32 width, u32 height) |
| 772 | { |
| 773 | __u32 diff; |
| 774 | const struct ov772x_win_size *win; |
| 775 | |
| 776 | /* default is QVGA */ |
| 777 | diff = abs(width - ov772x_win_qvga.width) + |
| 778 | abs(height - ov772x_win_qvga.height); |
| 779 | win = &ov772x_win_qvga; |
| 780 | |
| 781 | /* VGA */ |
| 782 | if (diff > |
| 783 | abs(width - ov772x_win_vga.width) + |
| 784 | abs(height - ov772x_win_vga.height)) |
| 785 | win = &ov772x_win_vga; |
| 786 | |
| 787 | return win; |
| 788 | } |
| 789 | |
| 790 | |
Guennadi Liakhovetski | d8fac21 | 2008-12-01 09:45:21 -0300 | [diff] [blame] | 791 | static int ov772x_set_fmt(struct soc_camera_device *icd, |
| 792 | __u32 pixfmt, |
| 793 | struct v4l2_rect *rect) |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 794 | { |
| 795 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 796 | int ret = -EINVAL; |
| 797 | int i; |
| 798 | |
| 799 | /* |
| 800 | * select format |
| 801 | */ |
| 802 | priv->fmt = NULL; |
| 803 | for (i = 0; i < ARRAY_SIZE(ov772x_cfmts); i++) { |
| 804 | if (pixfmt == ov772x_cfmts[i].fourcc) { |
| 805 | priv->fmt = ov772x_cfmts + i; |
| 806 | ret = 0; |
| 807 | break; |
| 808 | } |
| 809 | } |
| 810 | |
Kuninori Morimoto | f82a856 | 2008-12-29 06:04:44 -0300 | [diff] [blame] | 811 | /* |
| 812 | * select win |
| 813 | */ |
| 814 | priv->win = ov772x_select_win(rect->width, rect->height); |
| 815 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 816 | return ret; |
| 817 | } |
| 818 | |
Guennadi Liakhovetski | d8fac21 | 2008-12-01 09:45:21 -0300 | [diff] [blame] | 819 | static int ov772x_try_fmt(struct soc_camera_device *icd, |
| 820 | struct v4l2_format *f) |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 821 | { |
Kuninori Morimoto | f82a856 | 2008-12-29 06:04:44 -0300 | [diff] [blame] | 822 | struct v4l2_pix_format *pix = &f->fmt.pix; |
| 823 | const struct ov772x_win_size *win; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 824 | |
Kuninori Morimoto | f82a856 | 2008-12-29 06:04:44 -0300 | [diff] [blame] | 825 | /* |
| 826 | * select suitable win |
| 827 | */ |
| 828 | win = ov772x_select_win(pix->width, pix->height); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 829 | |
Kuninori Morimoto | f82a856 | 2008-12-29 06:04:44 -0300 | [diff] [blame] | 830 | pix->width = win->width; |
| 831 | pix->height = win->height; |
| 832 | pix->field = V4L2_FIELD_NONE; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 833 | |
| 834 | return 0; |
| 835 | } |
| 836 | |
| 837 | static int ov772x_video_probe(struct soc_camera_device *icd) |
| 838 | { |
| 839 | struct ov772x_priv *priv = container_of(icd, struct ov772x_priv, icd); |
| 840 | u8 pid, ver; |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 841 | const char *devname; |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 842 | |
| 843 | /* |
| 844 | * We must have a parent by now. And it cannot be a wrong one. |
| 845 | * So this entire test is completely redundant. |
| 846 | */ |
| 847 | if (!icd->dev.parent || |
| 848 | to_soc_camera_host(icd->dev.parent)->nr != icd->iface) |
| 849 | return -ENODEV; |
| 850 | |
| 851 | /* |
| 852 | * ov772x only use 8 or 10 bit bus width |
| 853 | */ |
| 854 | if (SOCAM_DATAWIDTH_10 != priv->info->buswidth && |
| 855 | SOCAM_DATAWIDTH_8 != priv->info->buswidth) { |
| 856 | dev_err(&icd->dev, "bus width error\n"); |
| 857 | return -ENODEV; |
| 858 | } |
| 859 | |
| 860 | icd->formats = ov772x_fmt_lists; |
| 861 | icd->num_formats = ARRAY_SIZE(ov772x_fmt_lists); |
| 862 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 863 | /* |
| 864 | * check and show product ID and manufacturer ID |
| 865 | */ |
| 866 | pid = i2c_smbus_read_byte_data(priv->client, PID); |
| 867 | ver = i2c_smbus_read_byte_data(priv->client, VER); |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 868 | |
| 869 | switch (VERSION(pid, ver)) { |
| 870 | case OV7720: |
| 871 | devname = "ov7720"; |
| 872 | priv->model = V4L2_IDENT_OV7720; |
| 873 | break; |
Kuninori Morimoto | 3cac2ca | 2008-12-18 11:07:11 -0300 | [diff] [blame] | 874 | case OV7725: |
| 875 | devname = "ov7725"; |
| 876 | priv->model = V4L2_IDENT_OV7725; |
| 877 | break; |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 878 | default: |
Kuninori Morimoto | b90c032 | 2008-12-01 09:44:48 -0300 | [diff] [blame] | 879 | dev_err(&icd->dev, |
| 880 | "Product ID error %x:%x\n", pid, ver); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 881 | return -ENODEV; |
| 882 | } |
| 883 | |
| 884 | dev_info(&icd->dev, |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 885 | "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", |
| 886 | devname, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 887 | pid, |
| 888 | ver, |
| 889 | i2c_smbus_read_byte_data(priv->client, MIDH), |
| 890 | i2c_smbus_read_byte_data(priv->client, MIDL)); |
| 891 | |
| 892 | |
| 893 | return soc_camera_video_start(icd); |
| 894 | } |
| 895 | |
| 896 | static void ov772x_video_remove(struct soc_camera_device *icd) |
| 897 | { |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 898 | soc_camera_video_stop(icd); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 899 | } |
| 900 | |
| 901 | static struct soc_camera_ops ov772x_ops = { |
| 902 | .owner = THIS_MODULE, |
| 903 | .probe = ov772x_video_probe, |
| 904 | .remove = ov772x_video_remove, |
| 905 | .init = ov772x_init, |
| 906 | .release = ov772x_release, |
| 907 | .start_capture = ov772x_start_capture, |
| 908 | .stop_capture = ov772x_stop_capture, |
Guennadi Liakhovetski | d8fac21 | 2008-12-01 09:45:21 -0300 | [diff] [blame] | 909 | .set_fmt = ov772x_set_fmt, |
| 910 | .try_fmt = ov772x_try_fmt, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 911 | .set_bus_param = ov772x_set_bus_param, |
| 912 | .query_bus_param = ov772x_query_bus_param, |
| 913 | .get_chip_id = ov772x_get_chip_id, |
| 914 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 915 | .get_register = ov772x_get_register, |
| 916 | .set_register = ov772x_set_register, |
| 917 | #endif |
| 918 | }; |
| 919 | |
| 920 | /* |
| 921 | * i2c_driver function |
| 922 | */ |
| 923 | |
Hans Verkuil | bef216b | 2008-10-30 10:57:14 -0300 | [diff] [blame] | 924 | static int ov772x_probe(struct i2c_client *client, |
| 925 | const struct i2c_device_id *did) |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 926 | { |
| 927 | struct ov772x_priv *priv; |
| 928 | struct ov772x_camera_info *info; |
| 929 | struct soc_camera_device *icd; |
| 930 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); |
| 931 | int ret; |
| 932 | |
| 933 | info = client->dev.platform_data; |
| 934 | if (!info) |
| 935 | return -EINVAL; |
| 936 | |
| 937 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
| 938 | dev_err(&adapter->dev, |
| 939 | "I2C-Adapter doesn't support " |
| 940 | "I2C_FUNC_SMBUS_BYTE_DATA\n"); |
| 941 | return -EIO; |
| 942 | } |
| 943 | |
| 944 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
| 945 | if (!priv) |
| 946 | return -ENOMEM; |
| 947 | |
| 948 | priv->info = info; |
| 949 | priv->client = client; |
| 950 | i2c_set_clientdata(client, priv); |
| 951 | |
| 952 | icd = &priv->icd; |
| 953 | icd->ops = &ov772x_ops; |
| 954 | icd->control = &client->dev; |
| 955 | icd->width_max = MAX_WIDTH; |
| 956 | icd->height_max = MAX_HEIGHT; |
| 957 | icd->iface = priv->info->link.bus_id; |
| 958 | |
| 959 | ret = soc_camera_device_register(icd); |
| 960 | |
Kuninori Morimoto | 77fe3d4 | 2008-12-29 06:04:37 -0300 | [diff] [blame] | 961 | if (ret) { |
| 962 | i2c_set_clientdata(client, NULL); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 963 | kfree(priv); |
Kuninori Morimoto | 77fe3d4 | 2008-12-29 06:04:37 -0300 | [diff] [blame] | 964 | } |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 965 | |
| 966 | return ret; |
| 967 | } |
| 968 | |
| 969 | static int ov772x_remove(struct i2c_client *client) |
| 970 | { |
| 971 | struct ov772x_priv *priv = i2c_get_clientdata(client); |
| 972 | |
| 973 | soc_camera_device_unregister(&priv->icd); |
Kuninori Morimoto | 77fe3d4 | 2008-12-29 06:04:37 -0300 | [diff] [blame] | 974 | i2c_set_clientdata(client, NULL); |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 975 | kfree(priv); |
| 976 | return 0; |
| 977 | } |
| 978 | |
| 979 | static const struct i2c_device_id ov772x_id[] = { |
Kuninori Morimoto | aeabc88 | 2008-12-18 11:05:49 -0300 | [diff] [blame] | 980 | { "ov772x", 0 }, |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 981 | { } |
| 982 | }; |
| 983 | MODULE_DEVICE_TABLE(i2c, ov772x_id); |
| 984 | |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 985 | static struct i2c_driver ov772x_i2c_driver = { |
| 986 | .driver = { |
| 987 | .name = "ov772x", |
| 988 | }, |
| 989 | .probe = ov772x_probe, |
| 990 | .remove = ov772x_remove, |
| 991 | .id_table = ov772x_id, |
| 992 | }; |
| 993 | |
| 994 | /* |
| 995 | * module function |
| 996 | */ |
| 997 | |
| 998 | static int __init ov772x_module_init(void) |
| 999 | { |
Kuninori Morimoto | 08a66ae | 2008-10-24 15:43:07 -0300 | [diff] [blame] | 1000 | return i2c_add_driver(&ov772x_i2c_driver); |
| 1001 | } |
| 1002 | |
| 1003 | static void __exit ov772x_module_exit(void) |
| 1004 | { |
| 1005 | i2c_del_driver(&ov772x_i2c_driver); |
| 1006 | } |
| 1007 | |
| 1008 | module_init(ov772x_module_init); |
| 1009 | module_exit(ov772x_module_exit); |
| 1010 | |
| 1011 | MODULE_DESCRIPTION("SoC Camera driver for ov772x"); |
| 1012 | MODULE_AUTHOR("Kuninori Morimoto"); |
| 1013 | MODULE_LICENSE("GPL v2"); |