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  * 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         if (len > USB_BUF_SZ) {
 167                 PERR("reg_r: buffer overflow\n");
 168                 return;
 169         }
 170
 171         usb_control_msg(dev,
 172                         usb_rcvctrlpipe(dev, 0),
 173                         0,
 174                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 175                         0,
 176                         index, gspca_dev->usb_buf, len, 500);
 177         PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
 178                         index, gspca_dev->usb_buf[0]);
 179 }
 180
 181 static void reg_w_val(struct gspca_dev *gspca_dev,
 182                         __u16 index,
 183                         __u8 val)
 184 {
 185         struct usb_device *dev = gspca_dev->dev;
 186
 187         gspca_dev->usb_buf[0] = val;
 188         usb_control_msg(dev,
 189                         usb_sndctrlpipe(dev, 0),
 190                         0,
 191                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 192                         0,
 193                         index, gspca_dev->usb_buf, 1, 500);
 194 }
 195
 196 static void reg_w(struct gspca_dev *gspca_dev,
 197                   __u16 index,
 198                   const __u8 *buffer,
 199                   __u16 len)
 200 {
 201         struct usb_device *dev = gspca_dev->dev;
 202
 203         if (len > USB_BUF_SZ) {
 204                 pr_err("reg_w: buffer overflow\n");
 205                 return;
 206         }
 207         PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
 208
 209         memcpy(gspca_dev->usb_buf, buffer, len);
 210         usb_control_msg(dev,
 211                         usb_sndctrlpipe(dev, 0),
 212                         0,
 213                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 214                         0, index, gspca_dev->usb_buf, len, 500);
 215 }
 216
 217 static int i2c_w(struct gspca_dev *gspca_dev,
 218                  __u8 reg,
 219                  const __u8 *buffer,
 220                  int len, __u8 mode)
 221 {
 222         /* buffer should be [D0..D7] */
 223         __u8 ptchcount;
 224
 225         /* set the base address */
 226         reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 227                                          /* sensor base for the pas106 */
 228         /* set count and prefetch */
 229         ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
 230         reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
 231         /* set the register base */
 232         reg_w_val(gspca_dev, ET_I2C_REG, reg);
 233         while (--len >= 0)
 234                 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
 235         return 0;
 236 }
 237
 238 static int i2c_r(struct gspca_dev *gspca_dev,
 239                         __u8 reg)
 240 {
 241         /* set the base address */
 242         reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 243                                         /* sensor base for the pas106 */
 244         /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
 245         reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
 246         reg_w_val(gspca_dev, ET_I2C_REG, reg);  /* set the register base */
 247         reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02);    /* prefetch */
 248         reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
 249         reg_r(gspca_dev, ET_I2C_DATA0, 1);      /* read one byte */
 250         return 0;
 251 }
 252
 253 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
 254 {
 255         int retry = 10;
 256
 257         while (retry--) {
 258                 reg_r(gspca_dev, ET_ClCK, 1);
 259                 if (gspca_dev->usb_buf[0] != 0)
 260                         return 1;
 261         }
 262         return 0;
 263 }
 264
 265 static int et_video(struct gspca_dev *gspca_dev,
 266                     int on)
 267 {
 268         int ret;
 269
 270         reg_w_val(gspca_dev, ET_GPIO_OUT,
 271                   on ? 0x10             /* startvideo - set Bit5 */
 272                      : 0);              /* stopvideo */
 273         ret = Et_WaitStatus(gspca_dev);
 274         if (ret != 0)
 275                 PERR("timeout video on/off");
 276         return ret;
 277 }
 278
 279 static void Et_init2(struct gspca_dev *gspca_dev)
 280 {
 281         __u8 value;
 282         static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
 283
 284         PDEBUG(D_STREAM, "Open Init2 ET");
 285         reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
 286         reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
 287         reg_r(gspca_dev, ET_GPIO_IN, 1);
 288         reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
 289         reg_w_val(gspca_dev, ET_CTRL, 0x1b);
 290
 291         /*  compression et subsampling */
 292         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 293                 value = ET_COMP_VAL1;   /* 320 */
 294         else
 295                 value = ET_COMP_VAL0;   /* 640 */
 296         reg_w_val(gspca_dev, ET_COMP, value);
 297         reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
 298         reg_w_val(gspca_dev, ET_MINQt, 0x04);
 299         /* undocumented registers */
 300         reg_w_val(gspca_dev, ET_REG1d, 0xff);
 301         reg_w_val(gspca_dev, ET_REG1e, 0xff);
 302         reg_w_val(gspca_dev, ET_REG1f, 0xff);
 303         reg_w_val(gspca_dev, ET_REG20, 0x35);
 304         reg_w_val(gspca_dev, ET_REG21, 0x01);
 305         reg_w_val(gspca_dev, ET_REG22, 0x00);
 306         reg_w_val(gspca_dev, ET_REG23, 0xff);
 307         reg_w_val(gspca_dev, ET_REG24, 0xff);
 308         reg_w_val(gspca_dev, ET_REG25, 0x0f);
 309         /* colors setting */
 310         reg_w_val(gspca_dev, 0x30, 0x11);               /* 0x30 */
 311         reg_w_val(gspca_dev, 0x31, 0x40);
 312         reg_w_val(gspca_dev, 0x32, 0x00);
 313         reg_w_val(gspca_dev, ET_O_RED, 0x00);           /* 0x34 */
 314         reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
 315         reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
 316         reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
 317         /*************/
 318         reg_w_val(gspca_dev, ET_G_RED, 0x80);           /* 0x4d */
 319         reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 320         reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 321         reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 322         reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 323         reg_w_val(gspca_dev, ET_G_GB_H, 0x00);          /* 0x52 */
 324         /* Window control registers */
 325         reg_w_val(gspca_dev, 0x61, 0x80);               /* use cmc_out */
 326         reg_w_val(gspca_dev, 0x62, 0x02);
 327         reg_w_val(gspca_dev, 0x63, 0x03);
 328         reg_w_val(gspca_dev, 0x64, 0x14);
 329         reg_w_val(gspca_dev, 0x65, 0x0e);
 330         reg_w_val(gspca_dev, 0x66, 0x02);
 331         reg_w_val(gspca_dev, 0x67, 0x02);
 332
 333         /**************************************/
 334         reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f);         /* 0x68 */
 335         reg_w_val(gspca_dev, ET_STARTX, 0x69);          /* 0x6a //0x69 */
 336         reg_w_val(gspca_dev, ET_STARTY, 0x0d);          /* 0x0d //0x0c */
 337         reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
 338         reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
 339         reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60);      /* 6d */
 340         reg_w_val(gspca_dev, ET_REG6e, 0x86);
 341         reg_w_val(gspca_dev, ET_REG6f, 0x01);
 342         reg_w_val(gspca_dev, ET_REG70, 0x26);
 343         reg_w_val(gspca_dev, ET_REG71, 0x7a);
 344         reg_w_val(gspca_dev, ET_REG72, 0x01);
 345         /* Clock Pattern registers ***************** */
 346         reg_w_val(gspca_dev, ET_REG73, 0x00);
 347         reg_w_val(gspca_dev, ET_REG74, 0x18);           /* 0x28 */
 348         reg_w_val(gspca_dev, ET_REG75, 0x0f);           /* 0x01 */
 349         /**********************************************/
 350         reg_w_val(gspca_dev, 0x8a, 0x20);
 351         reg_w_val(gspca_dev, 0x8d, 0x0f);
 352         reg_w_val(gspca_dev, 0x8e, 0x08);
 353         /**************************************/
 354         reg_w_val(gspca_dev, 0x03, 0x08);
 355         reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
 356         reg_w_val(gspca_dev, 0x81, 0xff);
 357         reg_w_val(gspca_dev, 0x80, 0x00);
 358         reg_w_val(gspca_dev, 0x81, 0xff);
 359         reg_w_val(gspca_dev, 0x80, 0x20);
 360         reg_w_val(gspca_dev, 0x03, 0x01);
 361         reg_w_val(gspca_dev, 0x03, 0x00);
 362         reg_w_val(gspca_dev, 0x03, 0x08);
 363         /********************************************/
 364
 365 /*      reg_r(gspca_dev, ET_I2C_BASE, 1);
 366                                          always 0x40 as the pas106 ??? */
 367         /* set the sensor */
 368         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 369                 value = 0x04;           /* 320 */
 370         else                            /* 640 */
 371                 value = 0x1e;   /* 0x17  * setting PixelClock
 372                                          * 0x03 mean 24/(3+1) = 6 Mhz
 373                                          * 0x05 -> 24/(5+1) = 4 Mhz
 374                                          * 0x0b -> 24/(11+1) = 2 Mhz
 375                                          * 0x17 -> 24/(23+1) = 1 Mhz
 376                                          */
 377         reg_w_val(gspca_dev, ET_PXL_CLK, value);
 378         /* now set by fifo the FormatLine setting */
 379         reg_w(gspca_dev, 0x62, FormLine, 6);
 380
 381         /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
 382         reg_w_val(gspca_dev, 0x81, 0x47);       /* 0x47; */
 383         reg_w_val(gspca_dev, 0x80, 0x40);       /* 0x40; */
 384         /* Pedro change */
 385         /* Brightness change Brith+ decrease value */
 386         /* Brigth- increase value */
 387         /* original value = 0x70; */
 388         reg_w_val(gspca_dev, 0x81, 0x30);       /* 0x20; - set brightness */
 389         reg_w_val(gspca_dev, 0x80, 0x20);       /* 0x20; */
 390 }
 391
 392 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 393 {
 394         int i;
 395
 396         for (i = 0; i < 4; i++)
 397                 reg_w_val(gspca_dev, ET_O_RED + i, val);
 398 }
 399
 400 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 401 {
 402         __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 403
 404         memset(RGBG, val, sizeof(RGBG) - 2);
 405         reg_w(gspca_dev, ET_G_RED, RGBG, 6);
 406 }
 407
 408 static void setcolors(struct gspca_dev *gspca_dev, s32 val)
 409 {
 410         struct sd *sd = (struct sd *) gspca_dev;
 411         __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
 412         __u8 i2cflags = 0x01;
 413         /* __u8 green = 0; */
 414
 415         I2cc[3] = val;  /* red */
 416         I2cc[0] = 15 - val;     /* blue */
 417         /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
 418         /* I2cc[1] = I2cc[2] = green; */
 419         if (sd->sensor == SENSOR_PAS106) {
 420                 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 421                 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
 422         }
 423 /*      PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
 424                 I2cc[3], I2cc[0], green); */
 425 }
 426
 427 static s32 getcolors(struct gspca_dev *gspca_dev)
 428 {
 429         struct sd *sd = (struct sd *) gspca_dev;
 430
 431         if (sd->sensor == SENSOR_PAS106) {
 432 /*              i2c_r(gspca_dev, PAS106_REG9);           * blue */
 433                 i2c_r(gspca_dev, PAS106_REG9 + 3);      /* red */
 434                 return gspca_dev->usb_buf[0] & 0x0f;
 435         }
 436         return 0;
 437 }
 438
 439 static void setautogain(struct gspca_dev *gspca_dev)
 440 {
 441         struct sd *sd = (struct sd *) gspca_dev;
 442
 443         if (sd->autogain)
 444                 sd->ag_cnt = AG_CNT_START;
 445         else
 446                 sd->ag_cnt = -1;
 447 }
 448
 449 static void Et_init1(struct gspca_dev *gspca_dev)
 450 {
 451         __u8 value;
 452 /*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
 453         __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
 454                                                 /* try 1/120 0x6d 0xcd 0x40 */
 455 /*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
 456                                                  * 1/60000 hmm ?? */
 457
 458         PDEBUG(D_STREAM, "Open Init1 ET");
 459         reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
 460         reg_r(gspca_dev, ET_GPIO_IN, 1);
 461         reg_w_val(gspca_dev, ET_RESET_ALL, 1);
 462         reg_w_val(gspca_dev, ET_RESET_ALL, 0);
 463         reg_w_val(gspca_dev, ET_ClCK, 0x10);
 464         reg_w_val(gspca_dev, ET_CTRL, 0x19);
 465         /*   compression et subsampling */
 466         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 467                 value = ET_COMP_VAL1;
 468         else
 469                 value = ET_COMP_VAL0;
 470         PDEBUG(D_STREAM, "Open mode %d Compression %d",
 471                gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
 472                value);
 473         reg_w_val(gspca_dev, ET_COMP, value);
 474         reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
 475         reg_w_val(gspca_dev, ET_MINQt, 0x02);
 476         /* undocumented registers */
 477         reg_w_val(gspca_dev, ET_REG1d, 0xff);
 478         reg_w_val(gspca_dev, ET_REG1e, 0xff);
 479         reg_w_val(gspca_dev, ET_REG1f, 0xff);
 480         reg_w_val(gspca_dev, ET_REG20, 0x35);
 481         reg_w_val(gspca_dev, ET_REG21, 0x01);
 482         reg_w_val(gspca_dev, ET_REG22, 0x00);
 483         reg_w_val(gspca_dev, ET_REG23, 0xf7);
 484         reg_w_val(gspca_dev, ET_REG24, 0xff);
 485         reg_w_val(gspca_dev, ET_REG25, 0x07);
 486         /* colors setting */
 487         reg_w_val(gspca_dev, ET_G_RED, 0x80);
 488         reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 489         reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 490         reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 491         reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 492         reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
 493         /* Window control registers */
 494         reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
 495         reg_w_val(gspca_dev, ET_STARTX, 0x56);          /* 0x56 */
 496         reg_w_val(gspca_dev, ET_STARTY, 0x05);          /* 0x04 */
 497         reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
 498         reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
 499         reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
 500         reg_w_val(gspca_dev, ET_REG6e, 0x86);
 501         reg_w_val(gspca_dev, ET_REG6f, 0x01);
 502         reg_w_val(gspca_dev, ET_REG70, 0x86);
 503         reg_w_val(gspca_dev, ET_REG71, 0x14);
 504         reg_w_val(gspca_dev, ET_REG72, 0x00);
 505         /* Clock Pattern registers */
 506         reg_w_val(gspca_dev, ET_REG73, 0x00);
 507         reg_w_val(gspca_dev, ET_REG74, 0x00);
 508         reg_w_val(gspca_dev, ET_REG75, 0x0a);
 509         reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
 510         reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
 511         /* set the sensor */
 512         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
 513                 I2c0[0] = 0x06;
 514                 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 515                 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 516                 value = 0x06;
 517                 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 518                 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 519                 /* value = 0x1f; */
 520                 value = 0x04;
 521                 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 522         } else {
 523                 I2c0[0] = 0x0a;
 524
 525                 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 526                 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 527                 value = 0x0a;
 528                 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 529                 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 530                 value = 0x04;
 531                 /* value = 0x10; */
 532                 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 533                 /* bit 2 enable bit 1:2 select 0 1 2 3
 534                    value = 0x07;                                * curve 0 *
 535                    i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
 536                  */
 537         }
 538
 539 /*      value = 0x01; */
 540 /*      value = 0x22; */
 541 /*      i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
 542         /* magnetude and sign bit for DAC */
 543         i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
 544         /* now set by fifo the whole colors setting */
 545         reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
 546         setcolors(gspca_dev, getcolors(gspca_dev));
 547 }
 548
 549 /* this function is called at probe time */
 550 static int sd_config(struct gspca_dev *gspca_dev,
 551                      const struct usb_device_id *id)
 552 {
 553         struct sd *sd = (struct sd *) gspca_dev;
 554         struct cam *cam;
 555
 556         cam = &gspca_dev->cam;
 557         sd->sensor = id->driver_info;
 558         if (sd->sensor == SENSOR_PAS106) {
 559                 cam->cam_mode = sif_mode;
 560                 cam->nmodes = ARRAY_SIZE(sif_mode);
 561         } else {
 562                 cam->cam_mode = vga_mode;
 563                 cam->nmodes = ARRAY_SIZE(vga_mode);
 564         }
 565         sd->ag_cnt = -1;
 566         return 0;
 567 }
 568
 569 /* this function is called at probe and resume time */
 570 static int sd_init(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         reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 579         et_video(gspca_dev, 0);         /* video off */
 580         return 0;
 581 }
 582
 583 /* -- start the camera -- */
 584 static int sd_start(struct gspca_dev *gspca_dev)
 585 {
 586         struct sd *sd = (struct sd *) gspca_dev;
 587
 588         if (sd->sensor == SENSOR_PAS106)
 589                 Et_init1(gspca_dev);
 590         else
 591                 Et_init2(gspca_dev);
 592
 593         setautogain(gspca_dev);
 594
 595         reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 596         et_video(gspca_dev, 1);         /* video on */
 597         return 0;
 598 }
 599
 600 static void sd_stopN(struct gspca_dev *gspca_dev)
 601 {
 602         et_video(gspca_dev, 0);         /* video off */
 603 }
 604
 605 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
 606 {
 607         struct sd *sd = (struct sd *) gspca_dev;
 608
 609         if (sd->sensor == SENSOR_PAS106) {
 610                 i2c_r(gspca_dev, PAS106_REG0e);
 611                 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
 612                 return gspca_dev->usb_buf[0];
 613         }
 614         return 0x1f;
 615 }
 616
 617 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
 618 {
 619         struct sd *sd = (struct sd *) gspca_dev;
 620
 621         if (sd->sensor == SENSOR_PAS106) {
 622                 __u8 i2cflags = 0x01;
 623
 624                 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 625                 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
 626         }
 627 }
 628
 629 #define BLIMIT(bright) \
 630         (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))
 631 #define LIMIT(color) \
 632         (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))
 633
 634 static void do_autogain(struct gspca_dev *gspca_dev)
 635 {
 636         struct sd *sd = (struct sd *) gspca_dev;
 637         __u8 luma;
 638         __u8 luma_mean = 128;
 639         __u8 luma_delta = 20;
 640         __u8 spring = 4;
 641         int Gbright;
 642         __u8 r, g, b;
 643
 644         if (sd->ag_cnt < 0)
 645                 return;
 646         if (--sd->ag_cnt >= 0)
 647                 return;
 648         sd->ag_cnt = AG_CNT_START;
 649
 650         Gbright = Et_getgainG(gspca_dev);
 651         reg_r(gspca_dev, ET_LUMA_CENTER, 4);
 652         g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
 653         r = gspca_dev->usb_buf[1];
 654         b = gspca_dev->usb_buf[2];
 655         r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
 656         b = ((b << 7) >> 10);
 657         g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
 658         luma = LIMIT(r + g + b);
 659         PDEBUG(D_FRAM, "Etoms luma G %d", luma);
 660         if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
 661                 Gbright += (luma_mean - luma) >> spring;
 662                 Gbright = BLIMIT(Gbright);
 663                 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
 664                 Et_setgainG(gspca_dev, (__u8) Gbright);
 665         }
 666 }
 667
 668 #undef BLIMIT
 669 #undef LIMIT
 670
 671 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 672                         u8 *data,                       /* isoc packet */
 673                         int len)                        /* iso packet length */
 674 {
 675         int seqframe;
 676
 677         seqframe = data[0] & 0x3f;
 678         len = (int) (((data[0] & 0xc0) << 2) | data[1]);
 679         if (seqframe == 0x3f) {
 680                 PDEBUG(D_FRAM,
 681                        "header packet found datalength %d !!", len);
 682                 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
 683                        data[2], data[3], data[4], data[5]);
 684                 data += 30;
 685                 /* don't change datalength as the chips provided it */
 686                 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
 687                 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
 688                 return;
 689         }
 690         if (len) {
 691                 data += 8;
 692                 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 693         } else {                        /* Drop Packet */
 694                 gspca_dev->last_packet_type = DISCARD_PACKET;
 695         }
 696 }
 697
 698 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
 699 {
 700         struct gspca_dev *gspca_dev =
 701                 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
 702         struct sd *sd = (struct sd *)gspca_dev;
 703
 704         gspca_dev->usb_err = 0;
 705
 706         if (!gspca_dev->streaming)
 707                 return 0;
 708
 709         switch (ctrl->id) {
 710         case V4L2_CID_BRIGHTNESS:
 711                 setbrightness(gspca_dev, ctrl->val);
 712                 break;
 713         case V4L2_CID_CONTRAST:
 714                 setcontrast(gspca_dev, ctrl->val);
 715                 break;
 716         case V4L2_CID_SATURATION:
 717                 setcolors(gspca_dev, ctrl->val);
 718                 break;
 719         case V4L2_CID_AUTOGAIN:
 720                 sd->autogain = ctrl->val;
 721                 setautogain(gspca_dev);
 722                 break;
 723         }
 724         return gspca_dev->usb_err;
 725 }
 726
 727 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
 728         .s_ctrl = sd_s_ctrl,
 729 };
 730
 731 static int sd_init_controls(struct gspca_dev *gspca_dev)
 732 {
 733         struct sd *sd = (struct sd *)gspca_dev;
 734         struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
 735
 736         gspca_dev->vdev.ctrl_handler = hdl;
 737         v4l2_ctrl_handler_init(hdl, 4);
 738         v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
 739                         V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);
 740         v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
 741                         V4L2_CID_CONTRAST, 0, 255, 1, 127);
 742         if (sd->sensor == SENSOR_PAS106)
 743                 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
 744                         V4L2_CID_SATURATION, 0, 15, 1, 7);
 745         v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
 746                         V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
 747         if (hdl->error) {
 748                 pr_err("Could not initialize controls\n");
 749                 return hdl->error;
 750         }
 751         return 0;
 752 }
 753
 754 /* sub-driver description */
 755 static const struct sd_desc sd_desc = {
 756         .name = MODULE_NAME,
 757         .config = sd_config,
 758         .init = sd_init,
 759         .init_controls = sd_init_controls,
 760         .start = sd_start,
 761         .stopN = sd_stopN,
 762         .pkt_scan = sd_pkt_scan,
 763         .dq_callback = do_autogain,
 764 };
 765
 766 /* -- module initialisation -- */
 767 static const struct usb_device_id device_table[] = {
 768         {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
 769         {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
 770         {}
 771 };
 772
 773 MODULE_DEVICE_TABLE(usb, device_table);
 774
 775 /* -- device connect -- */
 776 static int sd_probe(struct usb_interface *intf,
 777                     const struct usb_device_id *id)
 778 {
 779         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 780                                THIS_MODULE);
 781 }
 782
 783 static struct usb_driver sd_driver = {
 784         .name = MODULE_NAME,
 785         .id_table = device_table,
 786         .probe = sd_probe,
 787         .disconnect = gspca_disconnect,
 788 #ifdef CONFIG_PM
 789         .suspend = gspca_suspend,
 790         .resume = gspca_resume,
 791         .reset_resume = gspca_resume,
 792 #endif
 793 };
 794
 795 module_usb_driver(sd_driver);