1 /* 2 * Driver for the s5k4aa sensor 3 * 4 * Copyright (C) 2008 Erik Andrén 5 * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project. 6 * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br> 7 * 8 * Portions of code to USB interface and ALi driver software, 9 * Copyright (c) 2006 Willem Duinker 10 * v4l2 interface modeled after the V4L2 driver 11 * for SN9C10x PC Camera Controllers 12 * 13 * This program is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License as 15 * published by the Free Software Foundation, version 2. 16 * 17 */ 18 19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 20 21 #include "m5602_s5k4aa.h" 22 23 static const unsigned char preinit_s5k4aa[][4] = { 24 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00}, 25 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00}, 26 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 27 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 28 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 29 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00}, 30 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00}, 31 32 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 33 {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00}, 34 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0xb0, 0x00}, 35 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0x80, 0x00}, 36 {BRIDGE, M5602_XB_GPIO_EN_H, 0x3f, 0x00}, 37 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3f, 0x00}, 38 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00}, 39 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 40 {BRIDGE, M5602_XB_GPIO_DAT, 0x00, 0x00}, 41 {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00}, 42 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00}, 43 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00}, 44 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 45 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 46 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 47 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00}, 48 49 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00}, 50 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00}, 51 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 52 {BRIDGE, M5602_XB_GPIO_DAT, 0x14, 0x00}, 53 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 54 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00}, 55 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 56 {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00}, 57 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00}, 58 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00}, 59 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00}, 60 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00}, 61 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x20, 0x00}, 62 63 {SENSOR, S5K4AA_PAGE_MAP, 0x00, 0x00} 64 }; 65 66 static const unsigned char init_s5k4aa[][4] = { 67 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00}, 68 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00}, 69 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 70 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 71 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 72 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d, 0x00}, 73 {BRIDGE, M5602_XB_SENSOR_CTRL, 0x00, 0x00}, 74 75 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 76 {BRIDGE, M5602_XB_GPIO_DAT, 0x08, 0x00}, 77 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0xb0, 0x00}, 78 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0x80, 0x00}, 79 {BRIDGE, M5602_XB_GPIO_EN_H, 0x3f, 0x00}, 80 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x3f, 0x00}, 81 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00}, 82 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 83 {BRIDGE, M5602_XB_GPIO_DAT, 0x00, 0x00}, 84 {BRIDGE, M5602_XB_GPIO_EN_L, 0xff, 0x00}, 85 {BRIDGE, M5602_XB_GPIO_DIR_L, 0xff, 0x00}, 86 {BRIDGE, M5602_XB_GPIO_DAT_L, 0x00, 0x00}, 87 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 88 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 89 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 90 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00}, 91 92 {BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02, 0x00}, 93 {BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0, 0x00}, 94 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 95 {BRIDGE, M5602_XB_GPIO_DAT, 0x14, 0x00}, 96 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 97 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xf0, 0x00}, 98 {BRIDGE, M5602_XB_GPIO_DIR, 0x1d, 0x00}, 99 {BRIDGE, M5602_XB_GPIO_DAT, 0x1c, 0x00}, 100 {BRIDGE, M5602_XB_GPIO_EN_H, 0x06, 0x00}, 101 {BRIDGE, M5602_XB_GPIO_DIR_H, 0x06, 0x00}, 102 {BRIDGE, M5602_XB_GPIO_DAT_H, 0x00, 0x00}, 103 {BRIDGE, M5602_XB_GPIO_EN_L, 0x00, 0x00}, 104 {BRIDGE, M5602_XB_I2C_CLK_DIV, 0x20, 0x00}, 105 106 {SENSOR, S5K4AA_PAGE_MAP, 0x07, 0x00}, 107 {SENSOR, 0x36, 0x01, 0x00}, 108 {SENSOR, S5K4AA_PAGE_MAP, 0x00, 0x00}, 109 {SENSOR, 0x7b, 0xff, 0x00}, 110 {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00}, 111 {SENSOR, 0x0c, 0x05, 0x00}, 112 {SENSOR, 0x02, 0x0e, 0x00}, 113 {SENSOR, S5K4AA_READ_MODE, 0xa0, 0x00}, 114 {SENSOR, 0x37, 0x00, 0x00}, 115 }; 116 117 static const unsigned char VGA_s5k4aa[][4] = { 118 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00}, 119 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 120 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 121 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00}, 122 {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00}, 123 {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00}, 124 {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00}, 125 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 126 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 127 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 128 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 129 /* VSYNC_PARA, VSYNC_PARA : img height 480 = 0x01e0 */ 130 {BRIDGE, M5602_XB_VSYNC_PARA, 0x01, 0x00}, 131 {BRIDGE, M5602_XB_VSYNC_PARA, 0xe0, 0x00}, 132 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 133 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 134 {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00}, 135 {BRIDGE, M5602_XB_SIG_INI, 0x02, 0x00}, 136 {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00}, 137 {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00}, 138 /* HSYNC_PARA, HSYNC_PARA : img width 640 = 0x0280 */ 139 {BRIDGE, M5602_XB_HSYNC_PARA, 0x02, 0x00}, 140 {BRIDGE, M5602_XB_HSYNC_PARA, 0x80, 0x00}, 141 {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00}, 142 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 143 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xa0, 0x00}, /* 48 MHz */ 144 145 {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00}, 146 {SENSOR, S5K4AA_READ_MODE, S5K4AA_RM_H_FLIP | S5K4AA_RM_ROW_SKIP_2X 147 | S5K4AA_RM_COL_SKIP_2X, 0x00}, 148 /* 0x37 : Fix image stability when light is too bright and improves 149 * image quality in 640x480, but worsens it in 1280x1024 */ 150 {SENSOR, 0x37, 0x01, 0x00}, 151 /* ROWSTART_HI, ROWSTART_LO : 10 + (1024-960)/2 = 42 = 0x002a */ 152 {SENSOR, S5K4AA_ROWSTART_HI, 0x00, 0x00}, 153 {SENSOR, S5K4AA_ROWSTART_LO, 0x29, 0x00}, 154 {SENSOR, S5K4AA_COLSTART_HI, 0x00, 0x00}, 155 {SENSOR, S5K4AA_COLSTART_LO, 0x0c, 0x00}, 156 /* window_height_hi, window_height_lo : 960 = 0x03c0 */ 157 {SENSOR, S5K4AA_WINDOW_HEIGHT_HI, 0x03, 0x00}, 158 {SENSOR, S5K4AA_WINDOW_HEIGHT_LO, 0xc0, 0x00}, 159 /* window_width_hi, window_width_lo : 1280 = 0x0500 */ 160 {SENSOR, S5K4AA_WINDOW_WIDTH_HI, 0x05, 0x00}, 161 {SENSOR, S5K4AA_WINDOW_WIDTH_LO, 0x00, 0x00}, 162 {SENSOR, S5K4AA_H_BLANK_HI__, 0x00, 0x00}, 163 {SENSOR, S5K4AA_H_BLANK_LO__, 0xa8, 0x00}, /* helps to sync... */ 164 {SENSOR, S5K4AA_EXPOSURE_HI, 0x01, 0x00}, 165 {SENSOR, S5K4AA_EXPOSURE_LO, 0x00, 0x00}, 166 {SENSOR, 0x11, 0x04, 0x00}, 167 {SENSOR, 0x12, 0xc3, 0x00}, 168 {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00}, 169 {SENSOR, 0x02, 0x0e, 0x00}, 170 }; 171 172 static const unsigned char SXGA_s5k4aa[][4] = { 173 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06, 0x00}, 174 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0, 0x00}, 175 {BRIDGE, M5602_XB_ADC_CTRL, 0xc0, 0x00}, 176 {BRIDGE, M5602_XB_SENSOR_TYPE, 0x08, 0x00}, 177 {BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81, 0x00}, 178 {BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82, 0x00}, 179 {BRIDGE, M5602_XB_SIG_INI, 0x01, 0x00}, 180 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 181 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 182 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 183 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 184 /* VSYNC_PARA, VSYNC_PARA : img height 1024 = 0x0400 */ 185 {BRIDGE, M5602_XB_VSYNC_PARA, 0x04, 0x00}, 186 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 187 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 188 {BRIDGE, M5602_XB_VSYNC_PARA, 0x00, 0x00}, 189 {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00}, 190 {BRIDGE, M5602_XB_SIG_INI, 0x02, 0x00}, 191 {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00}, 192 {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00}, 193 /* HSYNC_PARA, HSYNC_PARA : img width 1280 = 0x0500 */ 194 {BRIDGE, M5602_XB_HSYNC_PARA, 0x05, 0x00}, 195 {BRIDGE, M5602_XB_HSYNC_PARA, 0x00, 0x00}, 196 {BRIDGE, M5602_XB_SIG_INI, 0x00, 0x00}, 197 {BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00, 0x00}, 198 {BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xa0, 0x00}, /* 48 MHz */ 199 200 {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00}, 201 {SENSOR, S5K4AA_READ_MODE, S5K4AA_RM_H_FLIP, 0x00}, 202 {SENSOR, 0x37, 0x01, 0x00}, 203 {SENSOR, S5K4AA_ROWSTART_HI, 0x00, 0x00}, 204 {SENSOR, S5K4AA_ROWSTART_LO, 0x09, 0x00}, 205 {SENSOR, S5K4AA_COLSTART_HI, 0x00, 0x00}, 206 {SENSOR, S5K4AA_COLSTART_LO, 0x0a, 0x00}, 207 {SENSOR, S5K4AA_WINDOW_HEIGHT_HI, 0x04, 0x00}, 208 {SENSOR, S5K4AA_WINDOW_HEIGHT_LO, 0x00, 0x00}, 209 {SENSOR, S5K4AA_WINDOW_WIDTH_HI, 0x05, 0x00}, 210 {SENSOR, S5K4AA_WINDOW_WIDTH_LO, 0x00, 0x00}, 211 {SENSOR, S5K4AA_H_BLANK_HI__, 0x01, 0x00}, 212 {SENSOR, S5K4AA_H_BLANK_LO__, 0xa8, 0x00}, 213 {SENSOR, S5K4AA_EXPOSURE_HI, 0x01, 0x00}, 214 {SENSOR, S5K4AA_EXPOSURE_LO, 0x00, 0x00}, 215 {SENSOR, 0x11, 0x04, 0x00}, 216 {SENSOR, 0x12, 0xc3, 0x00}, 217 {SENSOR, S5K4AA_PAGE_MAP, 0x02, 0x00}, 218 {SENSOR, 0x02, 0x0e, 0x00}, 219 }; 220 221 222 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl); 223 static void s5k4aa_dump_registers(struct sd *sd); 224 225 static const struct v4l2_ctrl_ops s5k4aa_ctrl_ops = { 226 .s_ctrl = s5k4aa_s_ctrl, 227 }; 228 229 static 230 const 231 struct dmi_system_id s5k4aa_vflip_dmi_table[] = { 232 { 233 .ident = "BRUNEINIT", 234 .matches = { 235 DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"), 236 DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"), 237 DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001") 238 } 239 }, { 240 .ident = "Fujitsu-Siemens Amilo Xa 2528", 241 .matches = { 242 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 243 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528") 244 } 245 }, { 246 .ident = "Fujitsu-Siemens Amilo Xi 2428", 247 .matches = { 248 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 249 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428") 250 } 251 }, { 252 .ident = "Fujitsu-Siemens Amilo Xi 2528", 253 .matches = { 254 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 255 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528") 256 } 257 }, { 258 .ident = "Fujitsu-Siemens Amilo Xi 2550", 259 .matches = { 260 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 261 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550") 262 } 263 }, { 264 .ident = "Fujitsu-Siemens Amilo Pa 2548", 265 .matches = { 266 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 267 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548") 268 } 269 }, { 270 .ident = "Fujitsu-Siemens Amilo Pi 2530", 271 .matches = { 272 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 273 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 2530") 274 } 275 }, { 276 .ident = "MSI GX700", 277 .matches = { 278 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), 279 DMI_MATCH(DMI_PRODUCT_NAME, "GX700"), 280 DMI_MATCH(DMI_BIOS_DATE, "12/02/2008") 281 } 282 }, { 283 .ident = "MSI GX700", 284 .matches = { 285 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), 286 DMI_MATCH(DMI_PRODUCT_NAME, "GX700"), 287 DMI_MATCH(DMI_BIOS_DATE, "07/26/2007") 288 } 289 }, { 290 .ident = "MSI GX700", 291 .matches = { 292 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), 293 DMI_MATCH(DMI_PRODUCT_NAME, "GX700"), 294 DMI_MATCH(DMI_BIOS_DATE, "07/19/2007") 295 } 296 }, { 297 .ident = "MSI GX700/GX705/EX700", 298 .matches = { 299 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), 300 DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700") 301 } 302 }, { 303 .ident = "MSI L735", 304 .matches = { 305 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"), 306 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X") 307 } 308 }, { 309 .ident = "Lenovo Y300", 310 .matches = { 311 DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"), 312 DMI_MATCH(DMI_PRODUCT_NAME, "Y300") 313 } 314 }, 315 { } 316 }; 317 318 static struct v4l2_pix_format s5k4aa_modes[] = { 319 { 320 640, 321 480, 322 V4L2_PIX_FMT_SBGGR8, 323 V4L2_FIELD_NONE, 324 .sizeimage = 325 640 * 480, 326 .bytesperline = 640, 327 .colorspace = V4L2_COLORSPACE_SRGB, 328 .priv = 0 329 }, 330 { 331 1280, 332 1024, 333 V4L2_PIX_FMT_SBGGR8, 334 V4L2_FIELD_NONE, 335 .sizeimage = 336 1280 * 1024, 337 .bytesperline = 1280, 338 .colorspace = V4L2_COLORSPACE_SRGB, 339 .priv = 0 340 } 341 }; 342 343 int s5k4aa_probe(struct sd *sd) 344 { 345 u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 346 const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75}; 347 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; 348 int i, err = 0; 349 350 if (force_sensor) { 351 if (force_sensor == S5K4AA_SENSOR) { 352 pr_info("Forcing a %s sensor\n", s5k4aa.name); 353 goto sensor_found; 354 } 355 /* If we want to force another sensor, don't try to probe this 356 * one */ 357 return -ENODEV; 358 } 359 360 PDEBUG(D_PROBE, "Probing for a s5k4aa sensor"); 361 362 /* Preinit the sensor */ 363 for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) { 364 u8 data[2] = {0x00, 0x00}; 365 366 switch (preinit_s5k4aa[i][0]) { 367 case BRIDGE: 368 err = m5602_write_bridge(sd, 369 preinit_s5k4aa[i][1], 370 preinit_s5k4aa[i][2]); 371 break; 372 373 case SENSOR: 374 data[0] = preinit_s5k4aa[i][2]; 375 err = m5602_write_sensor(sd, 376 preinit_s5k4aa[i][1], 377 data, 1); 378 break; 379 380 case SENSOR_LONG: 381 data[0] = preinit_s5k4aa[i][2]; 382 data[1] = preinit_s5k4aa[i][3]; 383 err = m5602_write_sensor(sd, 384 preinit_s5k4aa[i][1], 385 data, 2); 386 break; 387 default: 388 pr_info("Invalid stream command, exiting init\n"); 389 return -EINVAL; 390 } 391 } 392 393 /* Test some registers, but we don't know their exact meaning yet */ 394 if (m5602_read_sensor(sd, 0x00, prod_id, 2)) 395 return -ENODEV; 396 if (m5602_read_sensor(sd, 0x02, prod_id+2, 2)) 397 return -ENODEV; 398 if (m5602_read_sensor(sd, 0x04, prod_id+4, 2)) 399 return -ENODEV; 400 401 if (memcmp(prod_id, expected_prod_id, sizeof(prod_id))) 402 return -ENODEV; 403 else 404 pr_info("Detected a s5k4aa sensor\n"); 405 406 sensor_found: 407 sd->gspca_dev.cam.cam_mode = s5k4aa_modes; 408 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes); 409 410 return 0; 411 } 412 413 int s5k4aa_start(struct sd *sd) 414 { 415 int i, err = 0; 416 u8 data[2]; 417 struct cam *cam = &sd->gspca_dev.cam; 418 struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; 419 420 switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) { 421 case 1280: 422 PDEBUG(D_CONF, "Configuring camera for SXGA mode"); 423 424 for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) { 425 switch (SXGA_s5k4aa[i][0]) { 426 case BRIDGE: 427 err = m5602_write_bridge(sd, 428 SXGA_s5k4aa[i][1], 429 SXGA_s5k4aa[i][2]); 430 break; 431 432 case SENSOR: 433 data[0] = SXGA_s5k4aa[i][2]; 434 err = m5602_write_sensor(sd, 435 SXGA_s5k4aa[i][1], 436 data, 1); 437 break; 438 439 case SENSOR_LONG: 440 data[0] = SXGA_s5k4aa[i][2]; 441 data[1] = SXGA_s5k4aa[i][3]; 442 err = m5602_write_sensor(sd, 443 SXGA_s5k4aa[i][1], 444 data, 2); 445 break; 446 447 default: 448 pr_err("Invalid stream command, exiting init\n"); 449 return -EINVAL; 450 } 451 } 452 break; 453 454 case 640: 455 PDEBUG(D_CONF, "Configuring camera for VGA mode"); 456 457 for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) { 458 switch (VGA_s5k4aa[i][0]) { 459 case BRIDGE: 460 err = m5602_write_bridge(sd, 461 VGA_s5k4aa[i][1], 462 VGA_s5k4aa[i][2]); 463 break; 464 465 case SENSOR: 466 data[0] = VGA_s5k4aa[i][2]; 467 err = m5602_write_sensor(sd, 468 VGA_s5k4aa[i][1], 469 data, 1); 470 break; 471 472 case SENSOR_LONG: 473 data[0] = VGA_s5k4aa[i][2]; 474 data[1] = VGA_s5k4aa[i][3]; 475 err = m5602_write_sensor(sd, 476 VGA_s5k4aa[i][1], 477 data, 2); 478 break; 479 480 default: 481 pr_err("Invalid stream command, exiting init\n"); 482 return -EINVAL; 483 } 484 } 485 break; 486 } 487 if (err < 0) 488 return err; 489 490 return 0; 491 } 492 493 int s5k4aa_init(struct sd *sd) 494 { 495 int i, err = 0; 496 497 for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) { 498 u8 data[2] = {0x00, 0x00}; 499 500 switch (init_s5k4aa[i][0]) { 501 case BRIDGE: 502 err = m5602_write_bridge(sd, 503 init_s5k4aa[i][1], 504 init_s5k4aa[i][2]); 505 break; 506 507 case SENSOR: 508 data[0] = init_s5k4aa[i][2]; 509 err = m5602_write_sensor(sd, 510 init_s5k4aa[i][1], data, 1); 511 break; 512 513 case SENSOR_LONG: 514 data[0] = init_s5k4aa[i][2]; 515 data[1] = init_s5k4aa[i][3]; 516 err = m5602_write_sensor(sd, 517 init_s5k4aa[i][1], data, 2); 518 break; 519 default: 520 pr_info("Invalid stream command, exiting init\n"); 521 return -EINVAL; 522 } 523 } 524 525 if (dump_sensor) 526 s5k4aa_dump_registers(sd); 527 528 return err; 529 } 530 531 int s5k4aa_init_controls(struct sd *sd) 532 { 533 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler; 534 535 sd->gspca_dev.vdev.ctrl_handler = hdl; 536 v4l2_ctrl_handler_init(hdl, 6); 537 538 v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_BRIGHTNESS, 539 0, 0x1f, 1, S5K4AA_DEFAULT_BRIGHTNESS); 540 541 v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_EXPOSURE, 542 13, 0xfff, 1, 0x100); 543 544 v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_GAIN, 545 0, 127, 1, S5K4AA_DEFAULT_GAIN); 546 547 v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_SHARPNESS, 548 0, 1, 1, 1); 549 550 sd->hflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_HFLIP, 551 0, 1, 1, 0); 552 sd->vflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_VFLIP, 553 0, 1, 1, 0); 554 555 if (hdl->error) { 556 pr_err("Could not initialize controls\n"); 557 return hdl->error; 558 } 559 560 v4l2_ctrl_cluster(2, &sd->hflip); 561 562 return 0; 563 } 564 565 static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val) 566 { 567 struct sd *sd = (struct sd *) gspca_dev; 568 u8 data = S5K4AA_PAGE_MAP_2; 569 int err; 570 571 PDEBUG(D_CONF, "Set exposure to %d", val); 572 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); 573 if (err < 0) 574 return err; 575 data = (val >> 8) & 0xff; 576 err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1); 577 if (err < 0) 578 return err; 579 data = val & 0xff; 580 err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1); 581 582 return err; 583 } 584 585 static int s5k4aa_set_hvflip(struct gspca_dev *gspca_dev) 586 { 587 struct sd *sd = (struct sd *) gspca_dev; 588 u8 data = S5K4AA_PAGE_MAP_2; 589 int err; 590 int hflip = sd->hflip->val; 591 int vflip = sd->vflip->val; 592 593 PDEBUG(D_CONF, "Set hvflip %d %d", hflip, vflip); 594 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); 595 if (err < 0) 596 return err; 597 598 err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1); 599 if (err < 0) 600 return err; 601 602 if (dmi_check_system(s5k4aa_vflip_dmi_table)) { 603 hflip = !hflip; 604 vflip = !vflip; 605 } 606 607 data = (data & 0x7f) | (vflip << 7) | (hflip << 6); 608 err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1); 609 if (err < 0) 610 return err; 611 612 err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); 613 if (err < 0) 614 return err; 615 if (hflip) 616 data &= 0xfe; 617 else 618 data |= 0x01; 619 err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); 620 if (err < 0) 621 return err; 622 623 err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); 624 if (err < 0) 625 return err; 626 if (vflip) 627 data &= 0xfe; 628 else 629 data |= 0x01; 630 err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); 631 if (err < 0) 632 return err; 633 634 return 0; 635 } 636 637 static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val) 638 { 639 struct sd *sd = (struct sd *) gspca_dev; 640 u8 data = S5K4AA_PAGE_MAP_2; 641 int err; 642 643 PDEBUG(D_CONF, "Set gain to %d", val); 644 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); 645 if (err < 0) 646 return err; 647 648 data = val & 0xff; 649 err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1); 650 651 return err; 652 } 653 654 static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val) 655 { 656 struct sd *sd = (struct sd *) gspca_dev; 657 u8 data = S5K4AA_PAGE_MAP_2; 658 int err; 659 660 PDEBUG(D_CONF, "Set brightness to %d", val); 661 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); 662 if (err < 0) 663 return err; 664 665 data = val & 0xff; 666 return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1); 667 } 668 669 static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val) 670 { 671 struct sd *sd = (struct sd *) gspca_dev; 672 u8 data = S5K4AA_PAGE_MAP_2; 673 int err; 674 675 PDEBUG(D_CONF, "Set noise to %d", val); 676 err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); 677 if (err < 0) 678 return err; 679 680 data = val & 0x01; 681 return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1); 682 } 683 684 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl) 685 { 686 struct gspca_dev *gspca_dev = 687 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 688 int err; 689 690 if (!gspca_dev->streaming) 691 return 0; 692 693 switch (ctrl->id) { 694 case V4L2_CID_BRIGHTNESS: 695 err = s5k4aa_set_brightness(gspca_dev, ctrl->val); 696 break; 697 case V4L2_CID_EXPOSURE: 698 err = s5k4aa_set_exposure(gspca_dev, ctrl->val); 699 break; 700 case V4L2_CID_GAIN: 701 err = s5k4aa_set_gain(gspca_dev, ctrl->val); 702 break; 703 case V4L2_CID_SHARPNESS: 704 err = s5k4aa_set_noise(gspca_dev, ctrl->val); 705 break; 706 case V4L2_CID_HFLIP: 707 err = s5k4aa_set_hvflip(gspca_dev); 708 break; 709 default: 710 return -EINVAL; 711 } 712 713 return err; 714 } 715 716 void s5k4aa_disconnect(struct sd *sd) 717 { 718 sd->sensor = NULL; 719 } 720 721 static void s5k4aa_dump_registers(struct sd *sd) 722 { 723 int address; 724 u8 page, old_page; 725 m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1); 726 for (page = 0; page < 16; page++) { 727 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1); 728 pr_info("Dumping the s5k4aa register state for page 0x%x\n", 729 page); 730 for (address = 0; address <= 0xff; address++) { 731 u8 value = 0; 732 m5602_read_sensor(sd, address, &value, 1); 733 pr_info("register 0x%x contains 0x%x\n", 734 address, value); 735 } 736 } 737 pr_info("s5k4aa register state dump complete\n"); 738 739 for (page = 0; page < 16; page++) { 740 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1); 741 pr_info("Probing for which registers that are read/write for page 0x%x\n", 742 page); 743 for (address = 0; address <= 0xff; address++) { 744 u8 old_value, ctrl_value, test_value = 0xff; 745 746 m5602_read_sensor(sd, address, &old_value, 1); 747 m5602_write_sensor(sd, address, &test_value, 1); 748 m5602_read_sensor(sd, address, &ctrl_value, 1); 749 750 if (ctrl_value == test_value) 751 pr_info("register 0x%x is writeable\n", 752 address); 753 else 754 pr_info("register 0x%x is read only\n", 755 address); 756 757 /* Restore original value */ 758 m5602_write_sensor(sd, address, &old_value, 1); 759 } 760 } 761 pr_info("Read/write register probing complete\n"); 762 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1); 763 } 764