1 /* 2 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004) 3 * 4 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 22 23 #define MODULE_NAME "etoms" 24 25 #include "gspca.h" 26 27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); 28 MODULE_DESCRIPTION("Etoms USB Camera Driver"); 29 MODULE_LICENSE("GPL"); 30 31 /* specific webcam descriptor */ 32 struct sd { 33 struct gspca_dev gspca_dev; /* !! must be the first item */ 34 35 unsigned char autogain; 36 37 char sensor; 38 #define SENSOR_PAS106 0 39 #define SENSOR_TAS5130CXX 1 40 signed char ag_cnt; 41 #define AG_CNT_START 13 42 }; 43 44 static const struct v4l2_pix_format vga_mode[] = { 45 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 46 .bytesperline = 320, 47 .sizeimage = 320 * 240, 48 .colorspace = V4L2_COLORSPACE_SRGB, 49 .priv = 1}, 50 /* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 51 .bytesperline = 640, 52 .sizeimage = 640 * 480, 53 .colorspace = V4L2_COLORSPACE_SRGB, 54 .priv = 0}, */ 55 }; 56 57 static const struct v4l2_pix_format sif_mode[] = { 58 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 59 .bytesperline = 176, 60 .sizeimage = 176 * 144, 61 .colorspace = V4L2_COLORSPACE_SRGB, 62 .priv = 1}, 63 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 64 .bytesperline = 352, 65 .sizeimage = 352 * 288, 66 .colorspace = V4L2_COLORSPACE_SRGB, 67 .priv = 0}, 68 }; 69 70 #define ETOMS_ALT_SIZE_1000 12 71 72 #define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */ 73 #define ET_GPIO_OUT 0x05 /* Only IO data */ 74 #define ET_GPIO_IN 0x06 /* Read Only IO data */ 75 #define ET_RESET_ALL 0x03 76 #define ET_ClCK 0x01 77 #define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */ 78 79 #define ET_COMP 0x12 /* Compression register */ 80 #define ET_MAXQt 0x13 81 #define ET_MINQt 0x14 82 #define ET_COMP_VAL0 0x02 83 #define ET_COMP_VAL1 0x03 84 85 #define ET_REG1d 0x1d 86 #define ET_REG1e 0x1e 87 #define ET_REG1f 0x1f 88 #define ET_REG20 0x20 89 #define ET_REG21 0x21 90 #define ET_REG22 0x22 91 #define ET_REG23 0x23 92 #define ET_REG24 0x24 93 #define ET_REG25 0x25 94 /* base registers for luma calculation */ 95 #define ET_LUMA_CENTER 0x39 96 97 #define ET_G_RED 0x4d 98 #define ET_G_GREEN1 0x4e 99 #define ET_G_BLUE 0x4f 100 #define ET_G_GREEN2 0x50 101 #define ET_G_GR_H 0x51 102 #define ET_G_GB_H 0x52 103 104 #define ET_O_RED 0x34 105 #define ET_O_GREEN1 0x35 106 #define ET_O_BLUE 0x36 107 #define ET_O_GREEN2 0x37 108 109 #define ET_SYNCHRO 0x68 110 #define ET_STARTX 0x69 111 #define ET_STARTY 0x6a 112 #define ET_WIDTH_LOW 0x6b 113 #define ET_HEIGTH_LOW 0x6c 114 #define ET_W_H_HEIGTH 0x6d 115 116 #define ET_REG6e 0x6e /* OBW */ 117 #define ET_REG6f 0x6f /* OBW */ 118 #define ET_REG70 0x70 /* OBW_AWB */ 119 #define ET_REG71 0x71 /* OBW_AWB */ 120 #define ET_REG72 0x72 /* OBW_AWB */ 121 #define ET_REG73 0x73 /* Clkdelay ns */ 122 #define ET_REG74 0x74 /* test pattern */ 123 #define ET_REG75 0x75 /* test pattern */ 124 125 #define ET_I2C_CLK 0x8c 126 #define ET_PXL_CLK 0x60 127 128 #define ET_I2C_BASE 0x89 129 #define ET_I2C_COUNT 0x8a 130 #define ET_I2C_PREFETCH 0x8b 131 #define ET_I2C_REG 0x88 132 #define ET_I2C_DATA7 0x87 133 #define ET_I2C_DATA6 0x86 134 #define ET_I2C_DATA5 0x85 135 #define ET_I2C_DATA4 0x84 136 #define ET_I2C_DATA3 0x83 137 #define ET_I2C_DATA2 0x82 138 #define ET_I2C_DATA1 0x81 139 #define ET_I2C_DATA0 0x80 140 141 #define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */ 142 #define PAS106_REG3 0x03 /* line/frame H [11..4] */ 143 #define PAS106_REG4 0x04 /* line/frame L [3..0] */ 144 #define PAS106_REG5 0x05 /* exposure time line offset(default 5) */ 145 #define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */ 146 #define PAS106_REG7 0x07 /* signbit Dac (default 0) */ 147 #define PAS106_REG9 0x09 148 #define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */ 149 #define PAS106_REG13 0x13 /* end i2c write */ 150 151 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 }; 152 153 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d }; 154 155 static const __u8 I2c3[] = { 0x12, 0x05 }; 156 157 static const __u8 I2c4[] = { 0x41, 0x08 }; 158 159 /* read 'len' bytes to gspca_dev->usb_buf */ 160 static void reg_r(struct gspca_dev *gspca_dev, 161 __u16 index, 162 __u16 len) 163 { 164 struct usb_device *dev = gspca_dev->dev; 165 166 #ifdef GSPCA_DEBUG 167 if (len > USB_BUF_SZ) { 168 pr_err("reg_r: buffer overflow\n"); 169 return; 170 } 171 #endif 172 usb_control_msg(dev, 173 usb_rcvctrlpipe(dev, 0), 174 0, 175 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 176 0, 177 index, gspca_dev->usb_buf, len, 500); 178 PDEBUG(D_USBI, "reg read [%02x] -> %02x ..", 179 index, gspca_dev->usb_buf[0]); 180 } 181 182 static void reg_w_val(struct gspca_dev *gspca_dev, 183 __u16 index, 184 __u8 val) 185 { 186 struct usb_device *dev = gspca_dev->dev; 187 188 gspca_dev->usb_buf[0] = val; 189 usb_control_msg(dev, 190 usb_sndctrlpipe(dev, 0), 191 0, 192 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 193 0, 194 index, gspca_dev->usb_buf, 1, 500); 195 } 196 197 static void reg_w(struct gspca_dev *gspca_dev, 198 __u16 index, 199 const __u8 *buffer, 200 __u16 len) 201 { 202 struct usb_device *dev = gspca_dev->dev; 203 204 #ifdef GSPCA_DEBUG 205 if (len > USB_BUF_SZ) { 206 pr_err("reg_w: buffer overflow\n"); 207 return; 208 } 209 PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer); 210 #endif 211 memcpy(gspca_dev->usb_buf, buffer, len); 212 usb_control_msg(dev, 213 usb_sndctrlpipe(dev, 0), 214 0, 215 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 216 0, index, gspca_dev->usb_buf, len, 500); 217 } 218 219 static int i2c_w(struct gspca_dev *gspca_dev, 220 __u8 reg, 221 const __u8 *buffer, 222 int len, __u8 mode) 223 { 224 /* buffer should be [D0..D7] */ 225 __u8 ptchcount; 226 227 /* set the base address */ 228 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40); 229 /* sensor base for the pas106 */ 230 /* set count and prefetch */ 231 ptchcount = ((len & 0x07) << 4) | (mode & 0x03); 232 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount); 233 /* set the register base */ 234 reg_w_val(gspca_dev, ET_I2C_REG, reg); 235 while (--len >= 0) 236 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]); 237 return 0; 238 } 239 240 static int i2c_r(struct gspca_dev *gspca_dev, 241 __u8 reg) 242 { 243 /* set the base address */ 244 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40); 245 /* sensor base for the pas106 */ 246 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */ 247 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11); 248 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */ 249 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */ 250 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00); 251 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */ 252 return 0; 253 } 254 255 static int Et_WaitStatus(struct gspca_dev *gspca_dev) 256 { 257 int retry = 10; 258 259 while (retry--) { 260 reg_r(gspca_dev, ET_ClCK, 1); 261 if (gspca_dev->usb_buf[0] != 0) 262 return 1; 263 } 264 return 0; 265 } 266 267 static int et_video(struct gspca_dev *gspca_dev, 268 int on) 269 { 270 int ret; 271 272 reg_w_val(gspca_dev, ET_GPIO_OUT, 273 on ? 0x10 /* startvideo - set Bit5 */ 274 : 0); /* stopvideo */ 275 ret = Et_WaitStatus(gspca_dev); 276 if (ret != 0) 277 PDEBUG(D_ERR, "timeout video on/off"); 278 return ret; 279 } 280 281 static void Et_init2(struct gspca_dev *gspca_dev) 282 { 283 __u8 value; 284 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 }; 285 286 PDEBUG(D_STREAM, "Open Init2 ET"); 287 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f); 288 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10); 289 reg_r(gspca_dev, ET_GPIO_IN, 1); 290 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */ 291 reg_w_val(gspca_dev, ET_CTRL, 0x1b); 292 293 /* compression et subsampling */ 294 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) 295 value = ET_COMP_VAL1; /* 320 */ 296 else 297 value = ET_COMP_VAL0; /* 640 */ 298 reg_w_val(gspca_dev, ET_COMP, value); 299 reg_w_val(gspca_dev, ET_MAXQt, 0x1f); 300 reg_w_val(gspca_dev, ET_MINQt, 0x04); 301 /* undocumented registers */ 302 reg_w_val(gspca_dev, ET_REG1d, 0xff); 303 reg_w_val(gspca_dev, ET_REG1e, 0xff); 304 reg_w_val(gspca_dev, ET_REG1f, 0xff); 305 reg_w_val(gspca_dev, ET_REG20, 0x35); 306 reg_w_val(gspca_dev, ET_REG21, 0x01); 307 reg_w_val(gspca_dev, ET_REG22, 0x00); 308 reg_w_val(gspca_dev, ET_REG23, 0xff); 309 reg_w_val(gspca_dev, ET_REG24, 0xff); 310 reg_w_val(gspca_dev, ET_REG25, 0x0f); 311 /* colors setting */ 312 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */ 313 reg_w_val(gspca_dev, 0x31, 0x40); 314 reg_w_val(gspca_dev, 0x32, 0x00); 315 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */ 316 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00); 317 reg_w_val(gspca_dev, ET_O_BLUE, 0x00); 318 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00); 319 /*************/ 320 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */ 321 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80); 322 reg_w_val(gspca_dev, ET_G_BLUE, 0x80); 323 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80); 324 reg_w_val(gspca_dev, ET_G_GR_H, 0x00); 325 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */ 326 /* Window control registers */ 327 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */ 328 reg_w_val(gspca_dev, 0x62, 0x02); 329 reg_w_val(gspca_dev, 0x63, 0x03); 330 reg_w_val(gspca_dev, 0x64, 0x14); 331 reg_w_val(gspca_dev, 0x65, 0x0e); 332 reg_w_val(gspca_dev, 0x66, 0x02); 333 reg_w_val(gspca_dev, 0x67, 0x02); 334 335 /**************************************/ 336 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */ 337 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */ 338 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */ 339 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80); 340 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0); 341 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */ 342 reg_w_val(gspca_dev, ET_REG6e, 0x86); 343 reg_w_val(gspca_dev, ET_REG6f, 0x01); 344 reg_w_val(gspca_dev, ET_REG70, 0x26); 345 reg_w_val(gspca_dev, ET_REG71, 0x7a); 346 reg_w_val(gspca_dev, ET_REG72, 0x01); 347 /* Clock Pattern registers ***************** */ 348 reg_w_val(gspca_dev, ET_REG73, 0x00); 349 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */ 350 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */ 351 /**********************************************/ 352 reg_w_val(gspca_dev, 0x8a, 0x20); 353 reg_w_val(gspca_dev, 0x8d, 0x0f); 354 reg_w_val(gspca_dev, 0x8e, 0x08); 355 /**************************************/ 356 reg_w_val(gspca_dev, 0x03, 0x08); 357 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03); 358 reg_w_val(gspca_dev, 0x81, 0xff); 359 reg_w_val(gspca_dev, 0x80, 0x00); 360 reg_w_val(gspca_dev, 0x81, 0xff); 361 reg_w_val(gspca_dev, 0x80, 0x20); 362 reg_w_val(gspca_dev, 0x03, 0x01); 363 reg_w_val(gspca_dev, 0x03, 0x00); 364 reg_w_val(gspca_dev, 0x03, 0x08); 365 /********************************************/ 366 367 /* reg_r(gspca_dev, ET_I2C_BASE, 1); 368 always 0x40 as the pas106 ??? */ 369 /* set the sensor */ 370 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) 371 value = 0x04; /* 320 */ 372 else /* 640 */ 373 value = 0x1e; /* 0x17 * setting PixelClock 374 * 0x03 mean 24/(3+1) = 6 Mhz 375 * 0x05 -> 24/(5+1) = 4 Mhz 376 * 0x0b -> 24/(11+1) = 2 Mhz 377 * 0x17 -> 24/(23+1) = 1 Mhz 378 */ 379 reg_w_val(gspca_dev, ET_PXL_CLK, value); 380 /* now set by fifo the FormatLine setting */ 381 reg_w(gspca_dev, 0x62, FormLine, 6); 382 383 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */ 384 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */ 385 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */ 386 /* Pedro change */ 387 /* Brightness change Brith+ decrease value */ 388 /* Brigth- increase value */ 389 /* original value = 0x70; */ 390 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */ 391 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */ 392 } 393 394 static void setbrightness(struct gspca_dev *gspca_dev, s32 val) 395 { 396 int i; 397 398 for (i = 0; i < 4; i++) 399 reg_w_val(gspca_dev, ET_O_RED + i, val); 400 } 401 402 static void setcontrast(struct gspca_dev *gspca_dev, s32 val) 403 { 404 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 }; 405 406 memset(RGBG, val, sizeof(RGBG) - 2); 407 reg_w(gspca_dev, ET_G_RED, RGBG, 6); 408 } 409 410 static void setcolors(struct gspca_dev *gspca_dev, s32 val) 411 { 412 struct sd *sd = (struct sd *) gspca_dev; 413 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d }; 414 __u8 i2cflags = 0x01; 415 /* __u8 green = 0; */ 416 417 I2cc[3] = val; /* red */ 418 I2cc[0] = 15 - val; /* blue */ 419 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */ 420 /* I2cc[1] = I2cc[2] = green; */ 421 if (sd->sensor == SENSOR_PAS106) { 422 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3); 423 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1); 424 } 425 /* PDEBUG(D_CONF , "Etoms red %d blue %d green %d", 426 I2cc[3], I2cc[0], green); */ 427 } 428 429 static s32 getcolors(struct gspca_dev *gspca_dev) 430 { 431 struct sd *sd = (struct sd *) gspca_dev; 432 433 if (sd->sensor == SENSOR_PAS106) { 434 /* i2c_r(gspca_dev, PAS106_REG9); * blue */ 435 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */ 436 return gspca_dev->usb_buf[0] & 0x0f; 437 } 438 return 0; 439 } 440 441 static void setautogain(struct gspca_dev *gspca_dev) 442 { 443 struct sd *sd = (struct sd *) gspca_dev; 444 445 if (sd->autogain) 446 sd->ag_cnt = AG_CNT_START; 447 else 448 sd->ag_cnt = -1; 449 } 450 451 static void Et_init1(struct gspca_dev *gspca_dev) 452 { 453 __u8 value; 454 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */ 455 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 }; 456 /* try 1/120 0x6d 0xcd 0x40 */ 457 /* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00}; 458 * 1/60000 hmm ?? */ 459 460 PDEBUG(D_STREAM, "Open Init1 ET"); 461 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7); 462 reg_r(gspca_dev, ET_GPIO_IN, 1); 463 reg_w_val(gspca_dev, ET_RESET_ALL, 1); 464 reg_w_val(gspca_dev, ET_RESET_ALL, 0); 465 reg_w_val(gspca_dev, ET_ClCK, 0x10); 466 reg_w_val(gspca_dev, ET_CTRL, 0x19); 467 /* compression et subsampling */ 468 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) 469 value = ET_COMP_VAL1; 470 else 471 value = ET_COMP_VAL0; 472 PDEBUG(D_STREAM, "Open mode %d Compression %d", 473 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv, 474 value); 475 reg_w_val(gspca_dev, ET_COMP, value); 476 reg_w_val(gspca_dev, ET_MAXQt, 0x1d); 477 reg_w_val(gspca_dev, ET_MINQt, 0x02); 478 /* undocumented registers */ 479 reg_w_val(gspca_dev, ET_REG1d, 0xff); 480 reg_w_val(gspca_dev, ET_REG1e, 0xff); 481 reg_w_val(gspca_dev, ET_REG1f, 0xff); 482 reg_w_val(gspca_dev, ET_REG20, 0x35); 483 reg_w_val(gspca_dev, ET_REG21, 0x01); 484 reg_w_val(gspca_dev, ET_REG22, 0x00); 485 reg_w_val(gspca_dev, ET_REG23, 0xf7); 486 reg_w_val(gspca_dev, ET_REG24, 0xff); 487 reg_w_val(gspca_dev, ET_REG25, 0x07); 488 /* colors setting */ 489 reg_w_val(gspca_dev, ET_G_RED, 0x80); 490 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80); 491 reg_w_val(gspca_dev, ET_G_BLUE, 0x80); 492 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80); 493 reg_w_val(gspca_dev, ET_G_GR_H, 0x00); 494 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); 495 /* Window control registers */ 496 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0); 497 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */ 498 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */ 499 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60); 500 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20); 501 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50); 502 reg_w_val(gspca_dev, ET_REG6e, 0x86); 503 reg_w_val(gspca_dev, ET_REG6f, 0x01); 504 reg_w_val(gspca_dev, ET_REG70, 0x86); 505 reg_w_val(gspca_dev, ET_REG71, 0x14); 506 reg_w_val(gspca_dev, ET_REG72, 0x00); 507 /* Clock Pattern registers */ 508 reg_w_val(gspca_dev, ET_REG73, 0x00); 509 reg_w_val(gspca_dev, ET_REG74, 0x00); 510 reg_w_val(gspca_dev, ET_REG75, 0x0a); 511 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04); 512 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01); 513 /* set the sensor */ 514 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { 515 I2c0[0] = 0x06; 516 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1); 517 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1); 518 value = 0x06; 519 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1); 520 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1); 521 /* value = 0x1f; */ 522 value = 0x04; 523 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1); 524 } else { 525 I2c0[0] = 0x0a; 526 527 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1); 528 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1); 529 value = 0x0a; 530 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1); 531 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1); 532 value = 0x04; 533 /* value = 0x10; */ 534 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1); 535 /* bit 2 enable bit 1:2 select 0 1 2 3 536 value = 0x07; * curve 0 * 537 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1); 538 */ 539 } 540 541 /* value = 0x01; */ 542 /* value = 0x22; */ 543 /* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */ 544 /* magnetude and sign bit for DAC */ 545 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1); 546 /* now set by fifo the whole colors setting */ 547 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6); 548 setcolors(gspca_dev, getcolors(gspca_dev)); 549 } 550 551 /* this function is called at probe time */ 552 static int sd_config(struct gspca_dev *gspca_dev, 553 const struct usb_device_id *id) 554 { 555 struct sd *sd = (struct sd *) gspca_dev; 556 struct cam *cam; 557 558 cam = &gspca_dev->cam; 559 sd->sensor = id->driver_info; 560 if (sd->sensor == SENSOR_PAS106) { 561 cam->cam_mode = sif_mode; 562 cam->nmodes = ARRAY_SIZE(sif_mode); 563 } else { 564 cam->cam_mode = vga_mode; 565 cam->nmodes = ARRAY_SIZE(vga_mode); 566 } 567 sd->ag_cnt = -1; 568 return 0; 569 } 570 571 /* this function is called at probe and resume time */ 572 static int sd_init(struct gspca_dev *gspca_dev) 573 { 574 struct sd *sd = (struct sd *) gspca_dev; 575 576 if (sd->sensor == SENSOR_PAS106) 577 Et_init1(gspca_dev); 578 else 579 Et_init2(gspca_dev); 580 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08); 581 et_video(gspca_dev, 0); /* video off */ 582 return 0; 583 } 584 585 /* -- start the camera -- */ 586 static int sd_start(struct gspca_dev *gspca_dev) 587 { 588 struct sd *sd = (struct sd *) gspca_dev; 589 590 if (sd->sensor == SENSOR_PAS106) 591 Et_init1(gspca_dev); 592 else 593 Et_init2(gspca_dev); 594 595 setautogain(gspca_dev); 596 597 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08); 598 et_video(gspca_dev, 1); /* video on */ 599 return 0; 600 } 601 602 static void sd_stopN(struct gspca_dev *gspca_dev) 603 { 604 et_video(gspca_dev, 0); /* video off */ 605 } 606 607 static __u8 Et_getgainG(struct gspca_dev *gspca_dev) 608 { 609 struct sd *sd = (struct sd *) gspca_dev; 610 611 if (sd->sensor == SENSOR_PAS106) { 612 i2c_r(gspca_dev, PAS106_REG0e); 613 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]); 614 return gspca_dev->usb_buf[0]; 615 } 616 return 0x1f; 617 } 618 619 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain) 620 { 621 struct sd *sd = (struct sd *) gspca_dev; 622 623 if (sd->sensor == SENSOR_PAS106) { 624 __u8 i2cflags = 0x01; 625 626 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3); 627 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1); 628 } 629 } 630 631 #define BLIMIT(bright) \ 632 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright)) 633 #define LIMIT(color) \ 634 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color)) 635 636 static void do_autogain(struct gspca_dev *gspca_dev) 637 { 638 struct sd *sd = (struct sd *) gspca_dev; 639 __u8 luma; 640 __u8 luma_mean = 128; 641 __u8 luma_delta = 20; 642 __u8 spring = 4; 643 int Gbright; 644 __u8 r, g, b; 645 646 if (sd->ag_cnt < 0) 647 return; 648 if (--sd->ag_cnt >= 0) 649 return; 650 sd->ag_cnt = AG_CNT_START; 651 652 Gbright = Et_getgainG(gspca_dev); 653 reg_r(gspca_dev, ET_LUMA_CENTER, 4); 654 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1; 655 r = gspca_dev->usb_buf[1]; 656 b = gspca_dev->usb_buf[2]; 657 r = ((r << 8) - (r << 4) - (r << 3)) >> 10; 658 b = ((b << 7) >> 10); 659 g = ((g << 9) + (g << 7) + (g << 5)) >> 10; 660 luma = LIMIT(r + g + b); 661 PDEBUG(D_FRAM, "Etoms luma G %d", luma); 662 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) { 663 Gbright += (luma_mean - luma) >> spring; 664 Gbright = BLIMIT(Gbright); 665 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright); 666 Et_setgainG(gspca_dev, (__u8) Gbright); 667 } 668 } 669 670 #undef BLIMIT 671 #undef LIMIT 672 673 static void sd_pkt_scan(struct gspca_dev *gspca_dev, 674 u8 *data, /* isoc packet */ 675 int len) /* iso packet length */ 676 { 677 int seqframe; 678 679 seqframe = data[0] & 0x3f; 680 len = (int) (((data[0] & 0xc0) << 2) | data[1]); 681 if (seqframe == 0x3f) { 682 PDEBUG(D_FRAM, 683 "header packet found datalength %d !!", len); 684 PDEBUG(D_FRAM, "G %d R %d G %d B %d", 685 data[2], data[3], data[4], data[5]); 686 data += 30; 687 /* don't change datalength as the chips provided it */ 688 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); 689 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); 690 return; 691 } 692 if (len) { 693 data += 8; 694 gspca_frame_add(gspca_dev, INTER_PACKET, data, len); 695 } else { /* Drop Packet */ 696 gspca_dev->last_packet_type = DISCARD_PACKET; 697 } 698 } 699 700 static int sd_s_ctrl(struct v4l2_ctrl *ctrl) 701 { 702 struct gspca_dev *gspca_dev = 703 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 704 struct sd *sd = (struct sd *)gspca_dev; 705 706 gspca_dev->usb_err = 0; 707 708 if (!gspca_dev->streaming) 709 return 0; 710 711 switch (ctrl->id) { 712 case V4L2_CID_BRIGHTNESS: 713 setbrightness(gspca_dev, ctrl->val); 714 break; 715 case V4L2_CID_CONTRAST: 716 setcontrast(gspca_dev, ctrl->val); 717 break; 718 case V4L2_CID_SATURATION: 719 setcolors(gspca_dev, ctrl->val); 720 break; 721 case V4L2_CID_AUTOGAIN: 722 sd->autogain = ctrl->val; 723 setautogain(gspca_dev); 724 break; 725 } 726 return gspca_dev->usb_err; 727 } 728 729 static const struct v4l2_ctrl_ops sd_ctrl_ops = { 730 .s_ctrl = sd_s_ctrl, 731 }; 732 733 static int sd_init_controls(struct gspca_dev *gspca_dev) 734 { 735 struct sd *sd = (struct sd *)gspca_dev; 736 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; 737 738 gspca_dev->vdev.ctrl_handler = hdl; 739 v4l2_ctrl_handler_init(hdl, 4); 740 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 741 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63); 742 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 743 V4L2_CID_CONTRAST, 0, 255, 1, 127); 744 if (sd->sensor == SENSOR_PAS106) 745 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 746 V4L2_CID_SATURATION, 0, 15, 1, 7); 747 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 748 V4L2_CID_AUTOGAIN, 0, 1, 1, 1); 749 if (hdl->error) { 750 pr_err("Could not initialize controls\n"); 751 return hdl->error; 752 } 753 return 0; 754 } 755 756 /* sub-driver description */ 757 static const struct sd_desc sd_desc = { 758 .name = MODULE_NAME, 759 .config = sd_config, 760 .init = sd_init, 761 .init_controls = sd_init_controls, 762 .start = sd_start, 763 .stopN = sd_stopN, 764 .pkt_scan = sd_pkt_scan, 765 .dq_callback = do_autogain, 766 }; 767 768 /* -- module initialisation -- */ 769 static const struct usb_device_id device_table[] = { 770 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106}, 771 #if !defined CONFIG_USB_ET61X251 && !defined CONFIG_USB_ET61X251_MODULE 772 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX}, 773 #endif 774 {} 775 }; 776 777 MODULE_DEVICE_TABLE(usb, device_table); 778 779 /* -- device connect -- */ 780 static int sd_probe(struct usb_interface *intf, 781 const struct usb_device_id *id) 782 { 783 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), 784 THIS_MODULE); 785 } 786 787 static struct usb_driver sd_driver = { 788 .name = MODULE_NAME, 789 .id_table = device_table, 790 .probe = sd_probe, 791 .disconnect = gspca_disconnect, 792 #ifdef CONFIG_PM 793 .suspend = gspca_suspend, 794 .resume = gspca_resume, 795 .reset_resume = gspca_resume, 796 #endif 797 }; 798 799 module_usb_driver(sd_driver); 800