1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004) 4 * 5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr> 6 */ 7 8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 9 10#define MODULE_NAME "etoms" 11 12#include "gspca.h" 13 14MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); 15MODULE_DESCRIPTION("Etoms USB Camera Driver"); 16MODULE_LICENSE("GPL"); 17 18/* specific webcam descriptor */ 19struct sd { 20 struct gspca_dev gspca_dev; /* !! must be the first item */ 21 22 unsigned char autogain; 23 24 char sensor; 25#define SENSOR_PAS106 0 26#define SENSOR_TAS5130CXX 1 27 signed char ag_cnt; 28#define AG_CNT_START 13 29}; 30 31static const struct v4l2_pix_format vga_mode[] = { 32 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 33 .bytesperline = 320, 34 .sizeimage = 320 * 240, 35 .colorspace = V4L2_COLORSPACE_SRGB, 36 .priv = 1}, 37/* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 38 .bytesperline = 640, 39 .sizeimage = 640 * 480, 40 .colorspace = V4L2_COLORSPACE_SRGB, 41 .priv = 0}, */ 42}; 43 44static const struct v4l2_pix_format sif_mode[] = { 45 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 46 .bytesperline = 176, 47 .sizeimage = 176 * 144, 48 .colorspace = V4L2_COLORSPACE_SRGB, 49 .priv = 1}, 50 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, 51 .bytesperline = 352, 52 .sizeimage = 352 * 288, 53 .colorspace = V4L2_COLORSPACE_SRGB, 54 .priv = 0}, 55}; 56 57#define ETOMS_ALT_SIZE_1000 12 58 59#define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */ 60#define ET_GPIO_OUT 0x05 /* Only IO data */ 61#define ET_GPIO_IN 0x06 /* Read Only IO data */ 62#define ET_RESET_ALL 0x03 63#define ET_ClCK 0x01 64#define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */ 65 66#define ET_COMP 0x12 /* Compression register */ 67#define ET_MAXQt 0x13 68#define ET_MINQt 0x14 69#define ET_COMP_VAL0 0x02 70#define ET_COMP_VAL1 0x03 71 72#define ET_REG1d 0x1d 73#define ET_REG1e 0x1e 74#define ET_REG1f 0x1f 75#define ET_REG20 0x20 76#define ET_REG21 0x21 77#define ET_REG22 0x22 78#define ET_REG23 0x23 79#define ET_REG24 0x24 80#define ET_REG25 0x25 81/* base registers for luma calculation */ 82#define ET_LUMA_CENTER 0x39 83 84#define ET_G_RED 0x4d 85#define ET_G_GREEN1 0x4e 86#define ET_G_BLUE 0x4f 87#define ET_G_GREEN2 0x50 88#define ET_G_GR_H 0x51 89#define ET_G_GB_H 0x52 90 91#define ET_O_RED 0x34 92#define ET_O_GREEN1 0x35 93#define ET_O_BLUE 0x36 94#define ET_O_GREEN2 0x37 95 96#define ET_SYNCHRO 0x68 97#define ET_STARTX 0x69 98#define ET_STARTY 0x6a 99#define ET_WIDTH_LOW 0x6b 100#define ET_HEIGTH_LOW 0x6c 101#define ET_W_H_HEIGTH 0x6d 102 103#define ET_REG6e 0x6e /* OBW */ 104#define ET_REG6f 0x6f /* OBW */ 105#define ET_REG70 0x70 /* OBW_AWB */ 106#define ET_REG71 0x71 /* OBW_AWB */ 107#define ET_REG72 0x72 /* OBW_AWB */ 108#define ET_REG73 0x73 /* Clkdelay ns */ 109#define ET_REG74 0x74 /* test pattern */ 110#define ET_REG75 0x75 /* test pattern */ 111 112#define ET_I2C_CLK 0x8c 113#define ET_PXL_CLK 0x60 114 115#define ET_I2C_BASE 0x89 116#define ET_I2C_COUNT 0x8a 117#define ET_I2C_PREFETCH 0x8b 118#define ET_I2C_REG 0x88 119#define ET_I2C_DATA7 0x87 120#define ET_I2C_DATA6 0x86 121#define ET_I2C_DATA5 0x85 122#define ET_I2C_DATA4 0x84 123#define ET_I2C_DATA3 0x83 124#define ET_I2C_DATA2 0x82 125#define ET_I2C_DATA1 0x81 126#define ET_I2C_DATA0 0x80 127 128#define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */ 129#define PAS106_REG3 0x03 /* line/frame H [11..4] */ 130#define PAS106_REG4 0x04 /* line/frame L [3..0] */ 131#define PAS106_REG5 0x05 /* exposure time line offset(default 5) */ 132#define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */ 133#define PAS106_REG7 0x07 /* signbit Dac (default 0) */ 134#define PAS106_REG9 0x09 135#define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */ 136#define PAS106_REG13 0x13 /* end i2c write */ 137 138static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 }; 139 140static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d }; 141 142static const __u8 I2c3[] = { 0x12, 0x05 }; 143 144static const __u8 I2c4[] = { 0x41, 0x08 }; 145 146/* read 'len' bytes to gspca_dev->usb_buf */ 147static void reg_r(struct gspca_dev *gspca_dev, 148 __u16 index, 149 __u16 len) 150{ 151 struct usb_device *dev = gspca_dev->dev; 152 153 if (len > USB_BUF_SZ) { 154 gspca_err(gspca_dev, "reg_r: buffer overflow\n"); 155 return; 156 } 157 158 usb_control_msg(dev, 159 usb_rcvctrlpipe(dev, 0), 160 0, 161 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 162 0, 163 index, gspca_dev->usb_buf, len, 500); 164 gspca_dbg(gspca_dev, D_USBI, "reg read [%02x] -> %02x ..\n", 165 index, gspca_dev->usb_buf[0]); 166} 167 168static void reg_w_val(struct gspca_dev *gspca_dev, 169 __u16 index, 170 __u8 val) 171{ 172 struct usb_device *dev = gspca_dev->dev; 173 174 gspca_dev->usb_buf[0] = val; 175 usb_control_msg(dev, 176 usb_sndctrlpipe(dev, 0), 177 0, 178 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 179 0, 180 index, gspca_dev->usb_buf, 1, 500); 181} 182 183static void reg_w(struct gspca_dev *gspca_dev, 184 __u16 index, 185 const __u8 *buffer, 186 __u16 len) 187{ 188 struct usb_device *dev = gspca_dev->dev; 189 190 if (len > USB_BUF_SZ) { 191 pr_err("reg_w: buffer overflow\n"); 192 return; 193 } 194 gspca_dbg(gspca_dev, D_USBO, "reg write [%02x] = %02x..\n", 195 index, *buffer); 196 197 memcpy(gspca_dev->usb_buf, buffer, len); 198 usb_control_msg(dev, 199 usb_sndctrlpipe(dev, 0), 200 0, 201 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, 202 0, index, gspca_dev->usb_buf, len, 500); 203} 204 205static int i2c_w(struct gspca_dev *gspca_dev, 206 __u8 reg, 207 const __u8 *buffer, 208 int len, __u8 mode) 209{ 210 /* buffer should be [D0..D7] */ 211 __u8 ptchcount; 212 213 /* set the base address */ 214 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40); 215 /* sensor base for the pas106 */ 216 /* set count and prefetch */ 217 ptchcount = ((len & 0x07) << 4) | (mode & 0x03); 218 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount); 219 /* set the register base */ 220 reg_w_val(gspca_dev, ET_I2C_REG, reg); 221 while (--len >= 0) 222 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]); 223 return 0; 224} 225 226static int i2c_r(struct gspca_dev *gspca_dev, 227 __u8 reg) 228{ 229 /* set the base address */ 230 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40); 231 /* sensor base for the pas106 */ 232 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */ 233 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11); 234 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */ 235 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */ 236 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00); 237 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */ 238 return 0; 239} 240 241static int Et_WaitStatus(struct gspca_dev *gspca_dev) 242{ 243 int retry = 10; 244 245 while (retry--) { 246 reg_r(gspca_dev, ET_ClCK, 1); 247 if (gspca_dev->usb_buf[0] != 0) 248 return 1; 249 } 250 return 0; 251} 252 253static int et_video(struct gspca_dev *gspca_dev, 254 int on) 255{ 256 int ret; 257 258 reg_w_val(gspca_dev, ET_GPIO_OUT, 259 on ? 0x10 /* startvideo - set Bit5 */ 260 : 0); /* stopvideo */ 261 ret = Et_WaitStatus(gspca_dev); 262 if (ret != 0) 263 gspca_err(gspca_dev, "timeout video on/off\n"); 264 return ret; 265} 266 267static void Et_init2(struct gspca_dev *gspca_dev) 268{ 269 __u8 value; 270 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 }; 271 272 gspca_dbg(gspca_dev, D_STREAM, "Open Init2 ET\n"); 273 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f); 274 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10); 275 reg_r(gspca_dev, ET_GPIO_IN, 1); 276 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */ 277 reg_w_val(gspca_dev, ET_CTRL, 0x1b); 278 279 /* compression et subsampling */ 280 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) 281 value = ET_COMP_VAL1; /* 320 */ 282 else 283 value = ET_COMP_VAL0; /* 640 */ 284 reg_w_val(gspca_dev, ET_COMP, value); 285 reg_w_val(gspca_dev, ET_MAXQt, 0x1f); 286 reg_w_val(gspca_dev, ET_MINQt, 0x04); 287 /* undocumented registers */ 288 reg_w_val(gspca_dev, ET_REG1d, 0xff); 289 reg_w_val(gspca_dev, ET_REG1e, 0xff); 290 reg_w_val(gspca_dev, ET_REG1f, 0xff); 291 reg_w_val(gspca_dev, ET_REG20, 0x35); 292 reg_w_val(gspca_dev, ET_REG21, 0x01); 293 reg_w_val(gspca_dev, ET_REG22, 0x00); 294 reg_w_val(gspca_dev, ET_REG23, 0xff); 295 reg_w_val(gspca_dev, ET_REG24, 0xff); 296 reg_w_val(gspca_dev, ET_REG25, 0x0f); 297 /* colors setting */ 298 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */ 299 reg_w_val(gspca_dev, 0x31, 0x40); 300 reg_w_val(gspca_dev, 0x32, 0x00); 301 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */ 302 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00); 303 reg_w_val(gspca_dev, ET_O_BLUE, 0x00); 304 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00); 305 /*************/ 306 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */ 307 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80); 308 reg_w_val(gspca_dev, ET_G_BLUE, 0x80); 309 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80); 310 reg_w_val(gspca_dev, ET_G_GR_H, 0x00); 311 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */ 312 /* Window control registers */ 313 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */ 314 reg_w_val(gspca_dev, 0x62, 0x02); 315 reg_w_val(gspca_dev, 0x63, 0x03); 316 reg_w_val(gspca_dev, 0x64, 0x14); 317 reg_w_val(gspca_dev, 0x65, 0x0e); 318 reg_w_val(gspca_dev, 0x66, 0x02); 319 reg_w_val(gspca_dev, 0x67, 0x02); 320 321 /**************************************/ 322 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */ 323 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */ 324 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */ 325 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80); 326 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0); 327 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */ 328 reg_w_val(gspca_dev, ET_REG6e, 0x86); 329 reg_w_val(gspca_dev, ET_REG6f, 0x01); 330 reg_w_val(gspca_dev, ET_REG70, 0x26); 331 reg_w_val(gspca_dev, ET_REG71, 0x7a); 332 reg_w_val(gspca_dev, ET_REG72, 0x01); 333 /* Clock Pattern registers ***************** */ 334 reg_w_val(gspca_dev, ET_REG73, 0x00); 335 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */ 336 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */ 337 /**********************************************/ 338 reg_w_val(gspca_dev, 0x8a, 0x20); 339 reg_w_val(gspca_dev, 0x8d, 0x0f); 340 reg_w_val(gspca_dev, 0x8e, 0x08); 341 /**************************************/ 342 reg_w_val(gspca_dev, 0x03, 0x08); 343 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03); 344 reg_w_val(gspca_dev, 0x81, 0xff); 345 reg_w_val(gspca_dev, 0x80, 0x00); 346 reg_w_val(gspca_dev, 0x81, 0xff); 347 reg_w_val(gspca_dev, 0x80, 0x20); 348 reg_w_val(gspca_dev, 0x03, 0x01); 349 reg_w_val(gspca_dev, 0x03, 0x00); 350 reg_w_val(gspca_dev, 0x03, 0x08); 351 /********************************************/ 352 353/* reg_r(gspca_dev, ET_I2C_BASE, 1); 354 always 0x40 as the pas106 ??? */ 355 /* set the sensor */ 356 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) 357 value = 0x04; /* 320 */ 358 else /* 640 */ 359 value = 0x1e; /* 0x17 * setting PixelClock 360 * 0x03 mean 24/(3+1) = 6 Mhz 361 * 0x05 -> 24/(5+1) = 4 Mhz 362 * 0x0b -> 24/(11+1) = 2 Mhz 363 * 0x17 -> 24/(23+1) = 1 Mhz 364 */ 365 reg_w_val(gspca_dev, ET_PXL_CLK, value); 366 /* now set by fifo the FormatLine setting */ 367 reg_w(gspca_dev, 0x62, FormLine, 6); 368 369 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */ 370 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */ 371 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */ 372 /* Pedro change */ 373 /* Brightness change Brith+ decrease value */ 374 /* Brigth- increase value */ 375 /* original value = 0x70; */ 376 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */ 377 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */ 378} 379 380static void setbrightness(struct gspca_dev *gspca_dev, s32 val) 381{ 382 int i; 383 384 for (i = 0; i < 4; i++) 385 reg_w_val(gspca_dev, ET_O_RED + i, val); 386} 387 388static void setcontrast(struct gspca_dev *gspca_dev, s32 val) 389{ 390 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 }; 391 392 memset(RGBG, val, sizeof(RGBG) - 2); 393 reg_w(gspca_dev, ET_G_RED, RGBG, 6); 394} 395 396static void setcolors(struct gspca_dev *gspca_dev, s32 val) 397{ 398 struct sd *sd = (struct sd *) gspca_dev; 399 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d }; 400 __u8 i2cflags = 0x01; 401 /* __u8 green = 0; */ 402 403 I2cc[3] = val; /* red */ 404 I2cc[0] = 15 - val; /* blue */ 405 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */ 406 /* I2cc[1] = I2cc[2] = green; */ 407 if (sd->sensor == SENSOR_PAS106) { 408 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3); 409 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1); 410 } 411} 412 413static s32 getcolors(struct gspca_dev *gspca_dev) 414{ 415 struct sd *sd = (struct sd *) gspca_dev; 416 417 if (sd->sensor == SENSOR_PAS106) { 418/* i2c_r(gspca_dev, PAS106_REG9); * blue */ 419 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */ 420 return gspca_dev->usb_buf[0] & 0x0f; 421 } 422 return 0; 423} 424 425static void setautogain(struct gspca_dev *gspca_dev) 426{ 427 struct sd *sd = (struct sd *) gspca_dev; 428 429 if (sd->autogain) 430 sd->ag_cnt = AG_CNT_START; 431 else 432 sd->ag_cnt = -1; 433} 434 435static void Et_init1(struct gspca_dev *gspca_dev) 436{ 437 __u8 value; 438/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */ 439 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 }; 440 /* try 1/120 0x6d 0xcd 0x40 */ 441/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00}; 442 * 1/60000 hmm ?? */ 443 444 gspca_dbg(gspca_dev, D_STREAM, "Open Init1 ET\n\n"); 445 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7); 446 reg_r(gspca_dev, ET_GPIO_IN, 1); 447 reg_w_val(gspca_dev, ET_RESET_ALL, 1); 448 reg_w_val(gspca_dev, ET_RESET_ALL, 0); 449 reg_w_val(gspca_dev, ET_ClCK, 0x10); 450 reg_w_val(gspca_dev, ET_CTRL, 0x19); 451 /* compression et subsampling */ 452 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) 453 value = ET_COMP_VAL1; 454 else 455 value = ET_COMP_VAL0; 456 gspca_dbg(gspca_dev, D_STREAM, "Open mode %d Compression %d\n", 457 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv, 458 value); 459 reg_w_val(gspca_dev, ET_COMP, value); 460 reg_w_val(gspca_dev, ET_MAXQt, 0x1d); 461 reg_w_val(gspca_dev, ET_MINQt, 0x02); 462 /* undocumented registers */ 463 reg_w_val(gspca_dev, ET_REG1d, 0xff); 464 reg_w_val(gspca_dev, ET_REG1e, 0xff); 465 reg_w_val(gspca_dev, ET_REG1f, 0xff); 466 reg_w_val(gspca_dev, ET_REG20, 0x35); 467 reg_w_val(gspca_dev, ET_REG21, 0x01); 468 reg_w_val(gspca_dev, ET_REG22, 0x00); 469 reg_w_val(gspca_dev, ET_REG23, 0xf7); 470 reg_w_val(gspca_dev, ET_REG24, 0xff); 471 reg_w_val(gspca_dev, ET_REG25, 0x07); 472 /* colors setting */ 473 reg_w_val(gspca_dev, ET_G_RED, 0x80); 474 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80); 475 reg_w_val(gspca_dev, ET_G_BLUE, 0x80); 476 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80); 477 reg_w_val(gspca_dev, ET_G_GR_H, 0x00); 478 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); 479 /* Window control registers */ 480 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0); 481 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */ 482 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */ 483 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60); 484 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20); 485 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50); 486 reg_w_val(gspca_dev, ET_REG6e, 0x86); 487 reg_w_val(gspca_dev, ET_REG6f, 0x01); 488 reg_w_val(gspca_dev, ET_REG70, 0x86); 489 reg_w_val(gspca_dev, ET_REG71, 0x14); 490 reg_w_val(gspca_dev, ET_REG72, 0x00); 491 /* Clock Pattern registers */ 492 reg_w_val(gspca_dev, ET_REG73, 0x00); 493 reg_w_val(gspca_dev, ET_REG74, 0x00); 494 reg_w_val(gspca_dev, ET_REG75, 0x0a); 495 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04); 496 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01); 497 /* set the sensor */ 498 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) { 499 I2c0[0] = 0x06; 500 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1); 501 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1); 502 value = 0x06; 503 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1); 504 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1); 505 /* value = 0x1f; */ 506 value = 0x04; 507 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1); 508 } else { 509 I2c0[0] = 0x0a; 510 511 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1); 512 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1); 513 value = 0x0a; 514 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1); 515 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1); 516 value = 0x04; 517 /* value = 0x10; */ 518 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1); 519 /* bit 2 enable bit 1:2 select 0 1 2 3 520 value = 0x07; * curve 0 * 521 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1); 522 */ 523 } 524 525/* value = 0x01; */ 526/* value = 0x22; */ 527/* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */ 528 /* magnetude and sign bit for DAC */ 529 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1); 530 /* now set by fifo the whole colors setting */ 531 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6); 532 setcolors(gspca_dev, getcolors(gspca_dev)); 533} 534 535/* this function is called at probe time */ 536static int sd_config(struct gspca_dev *gspca_dev, 537 const struct usb_device_id *id) 538{ 539 struct sd *sd = (struct sd *) gspca_dev; 540 struct cam *cam; 541 542 cam = &gspca_dev->cam; 543 sd->sensor = id->driver_info; 544 if (sd->sensor == SENSOR_PAS106) { 545 cam->cam_mode = sif_mode; 546 cam->nmodes = ARRAY_SIZE(sif_mode); 547 } else { 548 cam->cam_mode = vga_mode; 549 cam->nmodes = ARRAY_SIZE(vga_mode); 550 } 551 sd->ag_cnt = -1; 552 return 0; 553} 554 555/* this function is called at probe and resume time */ 556static int sd_init(struct gspca_dev *gspca_dev) 557{ 558 struct sd *sd = (struct sd *) gspca_dev; 559 560 if (sd->sensor == SENSOR_PAS106) 561 Et_init1(gspca_dev); 562 else 563 Et_init2(gspca_dev); 564 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08); 565 et_video(gspca_dev, 0); /* video off */ 566 return 0; 567} 568 569/* -- start the camera -- */ 570static int sd_start(struct gspca_dev *gspca_dev) 571{ 572 struct sd *sd = (struct sd *) gspca_dev; 573 574 if (sd->sensor == SENSOR_PAS106) 575 Et_init1(gspca_dev); 576 else 577 Et_init2(gspca_dev); 578 579 setautogain(gspca_dev); 580 581 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08); 582 et_video(gspca_dev, 1); /* video on */ 583 return 0; 584} 585 586static void sd_stopN(struct gspca_dev *gspca_dev) 587{ 588 et_video(gspca_dev, 0); /* video off */ 589} 590 591static __u8 Et_getgainG(struct gspca_dev *gspca_dev) 592{ 593 struct sd *sd = (struct sd *) gspca_dev; 594 595 if (sd->sensor == SENSOR_PAS106) { 596 i2c_r(gspca_dev, PAS106_REG0e); 597 gspca_dbg(gspca_dev, D_CONF, "Etoms gain G %d\n", 598 gspca_dev->usb_buf[0]); 599 return gspca_dev->usb_buf[0]; 600 } 601 return 0x1f; 602} 603 604static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain) 605{ 606 struct sd *sd = (struct sd *) gspca_dev; 607 608 if (sd->sensor == SENSOR_PAS106) { 609 __u8 i2cflags = 0x01; 610 611 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3); 612 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1); 613 } 614} 615 616#define BLIMIT(bright) \ 617 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright)) 618#define LIMIT(color) \ 619 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color)) 620 621static void do_autogain(struct gspca_dev *gspca_dev) 622{ 623 struct sd *sd = (struct sd *) gspca_dev; 624 __u8 luma; 625 __u8 luma_mean = 128; 626 __u8 luma_delta = 20; 627 __u8 spring = 4; 628 int Gbright; 629 __u8 r, g, b; 630 631 if (sd->ag_cnt < 0) 632 return; 633 if (--sd->ag_cnt >= 0) 634 return; 635 sd->ag_cnt = AG_CNT_START; 636 637 Gbright = Et_getgainG(gspca_dev); 638 reg_r(gspca_dev, ET_LUMA_CENTER, 4); 639 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1; 640 r = gspca_dev->usb_buf[1]; 641 b = gspca_dev->usb_buf[2]; 642 r = ((r << 8) - (r << 4) - (r << 3)) >> 10; 643 b = ((b << 7) >> 10); 644 g = ((g << 9) + (g << 7) + (g << 5)) >> 10; 645 luma = LIMIT(r + g + b); 646 gspca_dbg(gspca_dev, D_FRAM, "Etoms luma G %d\n", luma); 647 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) { 648 Gbright += (luma_mean - luma) >> spring; 649 Gbright = BLIMIT(Gbright); 650 gspca_dbg(gspca_dev, D_FRAM, "Etoms Gbright %d\n", Gbright); 651 Et_setgainG(gspca_dev, (__u8) Gbright); 652 } 653} 654 655#undef BLIMIT 656#undef LIMIT 657 658static void sd_pkt_scan(struct gspca_dev *gspca_dev, 659 u8 *data, /* isoc packet */ 660 int len) /* iso packet length */ 661{ 662 int seqframe; 663 664 seqframe = data[0] & 0x3f; 665 len = (int) (((data[0] & 0xc0) << 2) | data[1]); 666 if (seqframe == 0x3f) { 667 gspca_dbg(gspca_dev, D_FRAM, 668 "header packet found datalength %d !!\n", len); 669 gspca_dbg(gspca_dev, D_FRAM, "G %d R %d G %d B %d", 670 data[2], data[3], data[4], data[5]); 671 data += 30; 672 /* don't change datalength as the chips provided it */ 673 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); 674 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); 675 return; 676 } 677 if (len) { 678 data += 8; 679 gspca_frame_add(gspca_dev, INTER_PACKET, data, len); 680 } else { /* Drop Packet */ 681 gspca_dev->last_packet_type = DISCARD_PACKET; 682 } 683} 684 685static int sd_s_ctrl(struct v4l2_ctrl *ctrl) 686{ 687 struct gspca_dev *gspca_dev = 688 container_of(ctrl->handler, struct gspca_dev, ctrl_handler); 689 struct sd *sd = (struct sd *)gspca_dev; 690 691 gspca_dev->usb_err = 0; 692 693 if (!gspca_dev->streaming) 694 return 0; 695 696 switch (ctrl->id) { 697 case V4L2_CID_BRIGHTNESS: 698 setbrightness(gspca_dev, ctrl->val); 699 break; 700 case V4L2_CID_CONTRAST: 701 setcontrast(gspca_dev, ctrl->val); 702 break; 703 case V4L2_CID_SATURATION: 704 setcolors(gspca_dev, ctrl->val); 705 break; 706 case V4L2_CID_AUTOGAIN: 707 sd->autogain = ctrl->val; 708 setautogain(gspca_dev); 709 break; 710 } 711 return gspca_dev->usb_err; 712} 713 714static const struct v4l2_ctrl_ops sd_ctrl_ops = { 715 .s_ctrl = sd_s_ctrl, 716}; 717 718static int sd_init_controls(struct gspca_dev *gspca_dev) 719{ 720 struct sd *sd = (struct sd *)gspca_dev; 721 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; 722 723 gspca_dev->vdev.ctrl_handler = hdl; 724 v4l2_ctrl_handler_init(hdl, 4); 725 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 726 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63); 727 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 728 V4L2_CID_CONTRAST, 0, 255, 1, 127); 729 if (sd->sensor == SENSOR_PAS106) 730 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 731 V4L2_CID_SATURATION, 0, 15, 1, 7); 732 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, 733 V4L2_CID_AUTOGAIN, 0, 1, 1, 1); 734 if (hdl->error) { 735 pr_err("Could not initialize controls\n"); 736 return hdl->error; 737 } 738 return 0; 739} 740 741/* sub-driver description */ 742static const struct sd_desc sd_desc = { 743 .name = MODULE_NAME, 744 .config = sd_config, 745 .init = sd_init, 746 .init_controls = sd_init_controls, 747 .start = sd_start, 748 .stopN = sd_stopN, 749 .pkt_scan = sd_pkt_scan, 750 .dq_callback = do_autogain, 751}; 752 753/* -- module initialisation -- */ 754static const struct usb_device_id device_table[] = { 755 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106}, 756 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX}, 757 {} 758}; 759 760MODULE_DEVICE_TABLE(usb, device_table); 761 762/* -- device connect -- */ 763static int sd_probe(struct usb_interface *intf, 764 const struct usb_device_id *id) 765{ 766 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd), 767 THIS_MODULE); 768} 769 770static struct usb_driver sd_driver = { 771 .name = MODULE_NAME, 772 .id_table = device_table, 773 .probe = sd_probe, 774 .disconnect = gspca_disconnect, 775#ifdef CONFIG_PM 776 .suspend = gspca_suspend, 777 .resume = gspca_resume, 778 .reset_resume = gspca_resume, 779#endif 780}; 781 782module_usb_driver(sd_driver); 783