drivers/media/usb/gspca/etoms.c

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