drivers/media/video/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 MODULE_NAME "etoms"
  22
  23 #include "gspca.h"
  24
  25 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  26 MODULE_DESCRIPTION("Etoms USB Camera Driver");
  27 MODULE_LICENSE("GPL");
  28
  29 /* specific webcam descriptor */
  30 struct sd {
  31         struct gspca_dev gspca_dev;     /* !! must be the first item */
  32
  33         unsigned char brightness;
  34         unsigned char contrast;
  35         unsigned char colors;
  36         unsigned char autogain;
  37
  38         char sensor;
  39 #define SENSOR_PAS106 0
  40 #define SENSOR_TAS5130CXX 1
  41         signed char ag_cnt;
  42 #define AG_CNT_START 13
  43 };
  44
  45 /* V4L2 controls supported by the driver */
  46 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  47 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  48 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  49 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  50 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
  51 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
  52 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
  53 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
  54
  55 static const struct ctrl sd_ctrls[] = {
  56         {
  57          {
  58           .id = V4L2_CID_BRIGHTNESS,
  59           .type = V4L2_CTRL_TYPE_INTEGER,
  60           .name = "Brightness",
  61           .minimum = 1,
  62           .maximum = 127,
  63           .step = 1,
  64 #define BRIGHTNESS_DEF 63
  65           .default_value = BRIGHTNESS_DEF,
  66           },
  67          .set = sd_setbrightness,
  68          .get = sd_getbrightness,
  69          },
  70         {
  71          {
  72           .id = V4L2_CID_CONTRAST,
  73           .type = V4L2_CTRL_TYPE_INTEGER,
  74           .name = "Contrast",
  75           .minimum = 0,
  76           .maximum = 255,
  77           .step = 1,
  78 #define CONTRAST_DEF 127
  79           .default_value = CONTRAST_DEF,
  80           },
  81          .set = sd_setcontrast,
  82          .get = sd_getcontrast,
  83          },
  84 #define COLOR_IDX 2
  85         {
  86          {
  87           .id = V4L2_CID_SATURATION,
  88           .type = V4L2_CTRL_TYPE_INTEGER,
  89           .name = "Color",
  90           .minimum = 0,
  91           .maximum = 15,
  92           .step = 1,
  93 #define COLOR_DEF 7
  94           .default_value = COLOR_DEF,
  95           },
  96          .set = sd_setcolors,
  97          .get = sd_getcolors,
  98          },
  99         {
 100          {
 101           .id = V4L2_CID_AUTOGAIN,
 102           .type = V4L2_CTRL_TYPE_BOOLEAN,
 103           .name = "Auto Gain",
 104           .minimum = 0,
 105           .maximum = 1,
 106           .step = 1,
 107 #define AUTOGAIN_DEF 1
 108           .default_value = AUTOGAIN_DEF,
 109           },
 110          .set = sd_setautogain,
 111          .get = sd_getautogain,
 112          },
 113 };
 114
 115 static const struct v4l2_pix_format vga_mode[] = {
 116         {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 117                 .bytesperline = 320,
 118                 .sizeimage = 320 * 240,
 119                 .colorspace = V4L2_COLORSPACE_SRGB,
 120                 .priv = 1},
 121 /*      {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 122                 .bytesperline = 640,
 123                 .sizeimage = 640 * 480,
 124                 .colorspace = V4L2_COLORSPACE_SRGB,
 125                 .priv = 0}, */
 126 };
 127
 128 static const struct v4l2_pix_format sif_mode[] = {
 129         {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 130                 .bytesperline = 176,
 131                 .sizeimage = 176 * 144,
 132                 .colorspace = V4L2_COLORSPACE_SRGB,
 133                 .priv = 1},
 134         {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 135                 .bytesperline = 352,
 136                 .sizeimage = 352 * 288,
 137                 .colorspace = V4L2_COLORSPACE_SRGB,
 138                 .priv = 0},
 139 };
 140
 141 #define ETOMS_ALT_SIZE_1000   12
 142
 143 #define ET_GPIO_DIR_CTRL 0x04   /* Control IO bit[0..5] (0 in  1 out) */
 144 #define ET_GPIO_OUT 0x05        /* Only IO data */
 145 #define ET_GPIO_IN 0x06         /* Read Only IO data */
 146 #define ET_RESET_ALL 0x03
 147 #define ET_ClCK 0x01
 148 #define ET_CTRL 0x02            /* enable i2c OutClck Powerdown mode */
 149
 150 #define ET_COMP 0x12            /* Compression register */
 151 #define ET_MAXQt 0x13
 152 #define ET_MINQt 0x14
 153 #define ET_COMP_VAL0 0x02
 154 #define ET_COMP_VAL1 0x03
 155
 156 #define ET_REG1d 0x1d
 157 #define ET_REG1e 0x1e
 158 #define ET_REG1f 0x1f
 159 #define ET_REG20 0x20
 160 #define ET_REG21 0x21
 161 #define ET_REG22 0x22
 162 #define ET_REG23 0x23
 163 #define ET_REG24 0x24
 164 #define ET_REG25 0x25
 165 /* base registers for luma calculation */
 166 #define ET_LUMA_CENTER 0x39
 167
 168 #define ET_G_RED 0x4d
 169 #define ET_G_GREEN1 0x4e
 170 #define ET_G_BLUE 0x4f
 171 #define ET_G_GREEN2 0x50
 172 #define ET_G_GR_H 0x51
 173 #define ET_G_GB_H 0x52
 174
 175 #define ET_O_RED 0x34
 176 #define ET_O_GREEN1 0x35
 177 #define ET_O_BLUE 0x36
 178 #define ET_O_GREEN2 0x37
 179
 180 #define ET_SYNCHRO 0x68
 181 #define ET_STARTX 0x69
 182 #define ET_STARTY 0x6a
 183 #define ET_WIDTH_LOW 0x6b
 184 #define ET_HEIGTH_LOW 0x6c
 185 #define ET_W_H_HEIGTH 0x6d
 186
 187 #define ET_REG6e 0x6e           /* OBW */
 188 #define ET_REG6f 0x6f           /* OBW */
 189 #define ET_REG70 0x70           /* OBW_AWB */
 190 #define ET_REG71 0x71           /* OBW_AWB */
 191 #define ET_REG72 0x72           /* OBW_AWB */
 192 #define ET_REG73 0x73           /* Clkdelay ns */
 193 #define ET_REG74 0x74           /* test pattern */
 194 #define ET_REG75 0x75           /* test pattern */
 195
 196 #define ET_I2C_CLK 0x8c
 197 #define ET_PXL_CLK 0x60
 198
 199 #define ET_I2C_BASE 0x89
 200 #define ET_I2C_COUNT 0x8a
 201 #define ET_I2C_PREFETCH 0x8b
 202 #define ET_I2C_REG 0x88
 203 #define ET_I2C_DATA7 0x87
 204 #define ET_I2C_DATA6 0x86
 205 #define ET_I2C_DATA5 0x85
 206 #define ET_I2C_DATA4 0x84
 207 #define ET_I2C_DATA3 0x83
 208 #define ET_I2C_DATA2 0x82
 209 #define ET_I2C_DATA1 0x81
 210 #define ET_I2C_DATA0 0x80
 211
 212 #define PAS106_REG2 0x02        /* pxlClk = systemClk/(reg2) */
 213 #define PAS106_REG3 0x03        /* line/frame H [11..4] */
 214 #define PAS106_REG4 0x04        /* line/frame L [3..0] */
 215 #define PAS106_REG5 0x05        /* exposure time line offset(default 5) */
 216 #define PAS106_REG6 0x06        /* exposure time pixel offset(default 6) */
 217 #define PAS106_REG7 0x07        /* signbit Dac (default 0) */
 218 #define PAS106_REG9 0x09
 219 #define PAS106_REG0e 0x0e       /* global gain [4..0](default 0x0e) */
 220 #define PAS106_REG13 0x13       /* end i2c write */
 221
 222 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 223
 224 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
 225
 226 static const __u8 I2c3[] = { 0x12, 0x05 };
 227
 228 static const __u8 I2c4[] = { 0x41, 0x08 };
 229
 230 /* read 'len' bytes to gspca_dev->usb_buf */
 231 static void reg_r(struct gspca_dev *gspca_dev,
 232                   __u16 index,
 233                   __u16 len)
 234 {
 235         struct usb_device *dev = gspca_dev->dev;
 236
 237 #ifdef GSPCA_DEBUG
 238         if (len > USB_BUF_SZ) {
 239                 err("reg_r: buffer overflow");
 240                 return;
 241         }
 242 #endif
 243         usb_control_msg(dev,
 244                         usb_rcvctrlpipe(dev, 0),
 245                         0,
 246                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 247                         0,
 248                         index, gspca_dev->usb_buf, len, 500);
 249         PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
 250                         index, gspca_dev->usb_buf[0]);
 251 }
 252
 253 static void reg_w_val(struct gspca_dev *gspca_dev,
 254                         __u16 index,
 255                         __u8 val)
 256 {
 257         struct usb_device *dev = gspca_dev->dev;
 258
 259         gspca_dev->usb_buf[0] = val;
 260         usb_control_msg(dev,
 261                         usb_sndctrlpipe(dev, 0),
 262                         0,
 263                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 264                         0,
 265                         index, gspca_dev->usb_buf, 1, 500);
 266 }
 267
 268 static void reg_w(struct gspca_dev *gspca_dev,
 269                   __u16 index,
 270                   const __u8 *buffer,
 271                   __u16 len)
 272 {
 273         struct usb_device *dev = gspca_dev->dev;
 274
 275 #ifdef GSPCA_DEBUG
 276         if (len > USB_BUF_SZ) {
 277                 err("reg_w: buffer overflow");
 278                 return;
 279         }
 280         PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
 281 #endif
 282         memcpy(gspca_dev->usb_buf, buffer, len);
 283         usb_control_msg(dev,
 284                         usb_sndctrlpipe(dev, 0),
 285                         0,
 286                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 287                         0, index, gspca_dev->usb_buf, len, 500);
 288 }
 289
 290 static int i2c_w(struct gspca_dev *gspca_dev,
 291                  __u8 reg,
 292                  const __u8 *buffer,
 293                  int len, __u8 mode)
 294 {
 295         /* buffer should be [D0..D7] */
 296         __u8 ptchcount;
 297
 298         /* set the base address */
 299         reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 300                                          /* sensor base for the pas106 */
 301         /* set count and prefetch */
 302         ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
 303         reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
 304         /* set the register base */
 305         reg_w_val(gspca_dev, ET_I2C_REG, reg);
 306         while (--len >= 0)
 307                 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
 308         return 0;
 309 }
 310
 311 static int i2c_r(struct gspca_dev *gspca_dev,
 312                         __u8 reg)
 313 {
 314         /* set the base address */
 315         reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 316                                         /* sensor base for the pas106 */
 317         /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
 318         reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
 319         reg_w_val(gspca_dev, ET_I2C_REG, reg);  /* set the register base */
 320         reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02);    /* prefetch */
 321         reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
 322         reg_r(gspca_dev, ET_I2C_DATA0, 1);      /* read one byte */
 323         return 0;
 324 }
 325
 326 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
 327 {
 328         int retry = 10;
 329
 330         while (retry--) {
 331                 reg_r(gspca_dev, ET_ClCK, 1);
 332                 if (gspca_dev->usb_buf[0] != 0)
 333                         return 1;
 334         }
 335         return 0;
 336 }
 337
 338 static int et_video(struct gspca_dev *gspca_dev,
 339                     int on)
 340 {
 341         int ret;
 342
 343         reg_w_val(gspca_dev, ET_GPIO_OUT,
 344                   on ? 0x10             /* startvideo - set Bit5 */
 345                      : 0);              /* stopvideo */
 346         ret = Et_WaitStatus(gspca_dev);
 347         if (ret != 0)
 348                 PDEBUG(D_ERR, "timeout video on/off");
 349         return ret;
 350 }
 351
 352 static void Et_init2(struct gspca_dev *gspca_dev)
 353 {
 354         __u8 value;
 355         static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
 356
 357         PDEBUG(D_STREAM, "Open Init2 ET");
 358         reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
 359         reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
 360         reg_r(gspca_dev, ET_GPIO_IN, 1);
 361         reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
 362         reg_w_val(gspca_dev, ET_CTRL, 0x1b);
 363
 364         /*  compression et subsampling */
 365         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 366                 value = ET_COMP_VAL1;   /* 320 */
 367         else
 368                 value = ET_COMP_VAL0;   /* 640 */
 369         reg_w_val(gspca_dev, ET_COMP, value);
 370         reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
 371         reg_w_val(gspca_dev, ET_MINQt, 0x04);
 372         /* undocumented registers */
 373         reg_w_val(gspca_dev, ET_REG1d, 0xff);
 374         reg_w_val(gspca_dev, ET_REG1e, 0xff);
 375         reg_w_val(gspca_dev, ET_REG1f, 0xff);
 376         reg_w_val(gspca_dev, ET_REG20, 0x35);
 377         reg_w_val(gspca_dev, ET_REG21, 0x01);
 378         reg_w_val(gspca_dev, ET_REG22, 0x00);
 379         reg_w_val(gspca_dev, ET_REG23, 0xff);
 380         reg_w_val(gspca_dev, ET_REG24, 0xff);
 381         reg_w_val(gspca_dev, ET_REG25, 0x0f);
 382         /* colors setting */
 383         reg_w_val(gspca_dev, 0x30, 0x11);               /* 0x30 */
 384         reg_w_val(gspca_dev, 0x31, 0x40);
 385         reg_w_val(gspca_dev, 0x32, 0x00);
 386         reg_w_val(gspca_dev, ET_O_RED, 0x00);           /* 0x34 */
 387         reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
 388         reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
 389         reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
 390         /*************/
 391         reg_w_val(gspca_dev, ET_G_RED, 0x80);           /* 0x4d */
 392         reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 393         reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 394         reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 395         reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 396         reg_w_val(gspca_dev, ET_G_GB_H, 0x00);          /* 0x52 */
 397         /* Window control registers */
 398         reg_w_val(gspca_dev, 0x61, 0x80);               /* use cmc_out */
 399         reg_w_val(gspca_dev, 0x62, 0x02);
 400         reg_w_val(gspca_dev, 0x63, 0x03);
 401         reg_w_val(gspca_dev, 0x64, 0x14);
 402         reg_w_val(gspca_dev, 0x65, 0x0e);
 403         reg_w_val(gspca_dev, 0x66, 0x02);
 404         reg_w_val(gspca_dev, 0x67, 0x02);
 405
 406         /**************************************/
 407         reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f);         /* 0x68 */
 408         reg_w_val(gspca_dev, ET_STARTX, 0x69);          /* 0x6a //0x69 */
 409         reg_w_val(gspca_dev, ET_STARTY, 0x0d);          /* 0x0d //0x0c */
 410         reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
 411         reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
 412         reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60);      /* 6d */
 413         reg_w_val(gspca_dev, ET_REG6e, 0x86);
 414         reg_w_val(gspca_dev, ET_REG6f, 0x01);
 415         reg_w_val(gspca_dev, ET_REG70, 0x26);
 416         reg_w_val(gspca_dev, ET_REG71, 0x7a);
 417         reg_w_val(gspca_dev, ET_REG72, 0x01);
 418         /* Clock Pattern registers ***************** */
 419         reg_w_val(gspca_dev, ET_REG73, 0x00);
 420         reg_w_val(gspca_dev, ET_REG74, 0x18);           /* 0x28 */
 421         reg_w_val(gspca_dev, ET_REG75, 0x0f);           /* 0x01 */
 422         /**********************************************/
 423         reg_w_val(gspca_dev, 0x8a, 0x20);
 424         reg_w_val(gspca_dev, 0x8d, 0x0f);
 425         reg_w_val(gspca_dev, 0x8e, 0x08);
 426         /**************************************/
 427         reg_w_val(gspca_dev, 0x03, 0x08);
 428         reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
 429         reg_w_val(gspca_dev, 0x81, 0xff);
 430         reg_w_val(gspca_dev, 0x80, 0x00);
 431         reg_w_val(gspca_dev, 0x81, 0xff);
 432         reg_w_val(gspca_dev, 0x80, 0x20);
 433         reg_w_val(gspca_dev, 0x03, 0x01);
 434         reg_w_val(gspca_dev, 0x03, 0x00);
 435         reg_w_val(gspca_dev, 0x03, 0x08);
 436         /********************************************/
 437
 438 /*      reg_r(gspca_dev, ET_I2C_BASE, 1);
 439                                          always 0x40 as the pas106 ??? */
 440         /* set the sensor */
 441         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 442                 value = 0x04;           /* 320 */
 443         else                            /* 640 */
 444                 value = 0x1e;   /* 0x17  * setting PixelClock
 445                                          * 0x03 mean 24/(3+1) = 6 Mhz
 446                                          * 0x05 -> 24/(5+1) = 4 Mhz
 447                                          * 0x0b -> 24/(11+1) = 2 Mhz
 448                                          * 0x17 -> 24/(23+1) = 1 Mhz
 449                                          */
 450         reg_w_val(gspca_dev, ET_PXL_CLK, value);
 451         /* now set by fifo the FormatLine setting */
 452         reg_w(gspca_dev, 0x62, FormLine, 6);
 453
 454         /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
 455         reg_w_val(gspca_dev, 0x81, 0x47);       /* 0x47; */
 456         reg_w_val(gspca_dev, 0x80, 0x40);       /* 0x40; */
 457         /* Pedro change */
 458         /* Brightness change Brith+ decrease value */
 459         /* Brigth- increase value */
 460         /* original value = 0x70; */
 461         reg_w_val(gspca_dev, 0x81, 0x30);       /* 0x20; - set brightness */
 462         reg_w_val(gspca_dev, 0x80, 0x20);       /* 0x20; */
 463 }
 464
 465 static void setbrightness(struct gspca_dev *gspca_dev)
 466 {
 467         struct sd *sd = (struct sd *) gspca_dev;
 468         int i;
 469         __u8 brightness = sd->brightness;
 470
 471         for (i = 0; i < 4; i++)
 472                 reg_w_val(gspca_dev, ET_O_RED + i, brightness);
 473 }
 474
 475 static void setcontrast(struct gspca_dev *gspca_dev)
 476 {
 477         struct sd *sd = (struct sd *) gspca_dev;
 478         __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 479         __u8 contrast = sd->contrast;
 480
 481         memset(RGBG, contrast, sizeof(RGBG) - 2);
 482         reg_w(gspca_dev, ET_G_RED, RGBG, 6);
 483 }
 484
 485 static void setcolors(struct gspca_dev *gspca_dev)
 486 {
 487         struct sd *sd = (struct sd *) gspca_dev;
 488         __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
 489         __u8 i2cflags = 0x01;
 490         /* __u8 green = 0; */
 491         __u8 colors = sd->colors;
 492
 493         I2cc[3] = colors;       /* red */
 494         I2cc[0] = 15 - colors;  /* blue */
 495         /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
 496         /* I2cc[1] = I2cc[2] = green; */
 497         if (sd->sensor == SENSOR_PAS106) {
 498                 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 499                 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
 500         }
 501 /*      PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
 502                 I2cc[3], I2cc[0], green); */
 503 }
 504
 505 static void getcolors(struct gspca_dev *gspca_dev)
 506 {
 507         struct sd *sd = (struct sd *) gspca_dev;
 508
 509         if (sd->sensor == SENSOR_PAS106) {
 510 /*              i2c_r(gspca_dev, PAS106_REG9);           * blue */
 511                 i2c_r(gspca_dev, PAS106_REG9 + 3);      /* red */
 512                 sd->colors = gspca_dev->usb_buf[0] & 0x0f;
 513         }
 514 }
 515
 516 static void setautogain(struct gspca_dev *gspca_dev)
 517 {
 518         struct sd *sd = (struct sd *) gspca_dev;
 519
 520         if (sd->autogain)
 521                 sd->ag_cnt = AG_CNT_START;
 522         else
 523                 sd->ag_cnt = -1;
 524 }
 525
 526 static void Et_init1(struct gspca_dev *gspca_dev)
 527 {
 528         __u8 value;
 529 /*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
 530         __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
 531                                                 /* try 1/120 0x6d 0xcd 0x40 */
 532 /*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
 533                                                  * 1/60000 hmm ?? */
 534
 535         PDEBUG(D_STREAM, "Open Init1 ET");
 536         reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
 537         reg_r(gspca_dev, ET_GPIO_IN, 1);
 538         reg_w_val(gspca_dev, ET_RESET_ALL, 1);
 539         reg_w_val(gspca_dev, ET_RESET_ALL, 0);
 540         reg_w_val(gspca_dev, ET_ClCK, 0x10);
 541         reg_w_val(gspca_dev, ET_CTRL, 0x19);
 542         /*   compression et subsampling */
 543         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 544                 value = ET_COMP_VAL1;
 545         else
 546                 value = ET_COMP_VAL0;
 547         PDEBUG(D_STREAM, "Open mode %d Compression %d",
 548                gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
 549                value);
 550         reg_w_val(gspca_dev, ET_COMP, value);
 551         reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
 552         reg_w_val(gspca_dev, ET_MINQt, 0x02);
 553         /* undocumented registers */
 554         reg_w_val(gspca_dev, ET_REG1d, 0xff);
 555         reg_w_val(gspca_dev, ET_REG1e, 0xff);
 556         reg_w_val(gspca_dev, ET_REG1f, 0xff);
 557         reg_w_val(gspca_dev, ET_REG20, 0x35);
 558         reg_w_val(gspca_dev, ET_REG21, 0x01);
 559         reg_w_val(gspca_dev, ET_REG22, 0x00);
 560         reg_w_val(gspca_dev, ET_REG23, 0xf7);
 561         reg_w_val(gspca_dev, ET_REG24, 0xff);
 562         reg_w_val(gspca_dev, ET_REG25, 0x07);
 563         /* colors setting */
 564         reg_w_val(gspca_dev, ET_G_RED, 0x80);
 565         reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 566         reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 567         reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 568         reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 569         reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
 570         /* Window control registers */
 571         reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
 572         reg_w_val(gspca_dev, ET_STARTX, 0x56);          /* 0x56 */
 573         reg_w_val(gspca_dev, ET_STARTY, 0x05);          /* 0x04 */
 574         reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
 575         reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
 576         reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
 577         reg_w_val(gspca_dev, ET_REG6e, 0x86);
 578         reg_w_val(gspca_dev, ET_REG6f, 0x01);
 579         reg_w_val(gspca_dev, ET_REG70, 0x86);
 580         reg_w_val(gspca_dev, ET_REG71, 0x14);
 581         reg_w_val(gspca_dev, ET_REG72, 0x00);
 582         /* Clock Pattern registers */
 583         reg_w_val(gspca_dev, ET_REG73, 0x00);
 584         reg_w_val(gspca_dev, ET_REG74, 0x00);
 585         reg_w_val(gspca_dev, ET_REG75, 0x0a);
 586         reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
 587         reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
 588         /* set the sensor */
 589         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
 590                 I2c0[0] = 0x06;
 591                 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 592                 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 593                 value = 0x06;
 594                 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 595                 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 596                 /* value = 0x1f; */
 597                 value = 0x04;
 598                 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 599         } else {
 600                 I2c0[0] = 0x0a;
 601
 602                 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 603                 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 604                 value = 0x0a;
 605                 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 606                 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 607                 value = 0x04;
 608                 /* value = 0x10; */
 609                 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 610                 /* bit 2 enable bit 1:2 select 0 1 2 3
 611                    value = 0x07;                                * curve 0 *
 612                    i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
 613                  */
 614         }
 615
 616 /*      value = 0x01; */
 617 /*      value = 0x22; */
 618 /*      i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
 619         /* magnetude and sign bit for DAC */
 620         i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
 621         /* now set by fifo the whole colors setting */
 622         reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
 623         getcolors(gspca_dev);
 624         setcolors(gspca_dev);
 625 }
 626
 627 /* this function is called at probe time */
 628 static int sd_config(struct gspca_dev *gspca_dev,
 629                      const struct usb_device_id *id)
 630 {
 631         struct sd *sd = (struct sd *) gspca_dev;
 632         struct cam *cam;
 633
 634         cam = &gspca_dev->cam;
 635         sd->sensor = id->driver_info;
 636         if (sd->sensor == SENSOR_PAS106) {
 637                 cam->cam_mode = sif_mode;
 638                 cam->nmodes = ARRAY_SIZE(sif_mode);
 639         } else {
 640                 cam->cam_mode = vga_mode;
 641                 cam->nmodes = ARRAY_SIZE(vga_mode);
 642                 gspca_dev->ctrl_dis = (1 << COLOR_IDX);
 643         }
 644         sd->brightness = BRIGHTNESS_DEF;
 645         sd->contrast = CONTRAST_DEF;
 646         sd->colors = COLOR_DEF;
 647         sd->autogain = AUTOGAIN_DEF;
 648         sd->ag_cnt = -1;
 649         return 0;
 650 }
 651
 652 /* this function is called at probe and resume time */
 653 static int sd_init(struct gspca_dev *gspca_dev)
 654 {
 655         struct sd *sd = (struct sd *) gspca_dev;
 656
 657         if (sd->sensor == SENSOR_PAS106)
 658                 Et_init1(gspca_dev);
 659         else
 660                 Et_init2(gspca_dev);
 661         reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 662         et_video(gspca_dev, 0);         /* video off */
 663         return 0;
 664 }
 665
 666 /* -- start the camera -- */
 667 static int sd_start(struct gspca_dev *gspca_dev)
 668 {
 669         struct sd *sd = (struct sd *) gspca_dev;
 670
 671         if (sd->sensor == SENSOR_PAS106)
 672                 Et_init1(gspca_dev);
 673         else
 674                 Et_init2(gspca_dev);
 675
 676         setautogain(gspca_dev);
 677
 678         reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 679         et_video(gspca_dev, 1);         /* video on */
 680         return 0;
 681 }
 682
 683 static void sd_stopN(struct gspca_dev *gspca_dev)
 684 {
 685         et_video(gspca_dev, 0);         /* video off */
 686 }
 687
 688 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
 689 {
 690         struct sd *sd = (struct sd *) gspca_dev;
 691
 692         if (sd->sensor == SENSOR_PAS106) {
 693                 i2c_r(gspca_dev, PAS106_REG0e);
 694                 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
 695                 return gspca_dev->usb_buf[0];
 696         }
 697         return 0x1f;
 698 }
 699
 700 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
 701 {
 702         struct sd *sd = (struct sd *) gspca_dev;
 703
 704         if (sd->sensor == SENSOR_PAS106) {
 705                 __u8 i2cflags = 0x01;
 706
 707                 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 708                 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
 709         }
 710 }
 711
 712 #define BLIMIT(bright) \
 713         (__u8)((bright > 0x1f)?0x1f:((bright < 4)?3:bright))
 714 #define LIMIT(color) \
 715         (unsigned char)((color > 0xff)?0xff:((color < 0)?0:color))
 716
 717 static void do_autogain(struct gspca_dev *gspca_dev)
 718 {
 719         struct sd *sd = (struct sd *) gspca_dev;
 720         __u8 luma;
 721         __u8 luma_mean = 128;
 722         __u8 luma_delta = 20;
 723         __u8 spring = 4;
 724         int Gbright;
 725         __u8 r, g, b;
 726
 727         if (sd->ag_cnt < 0)
 728                 return;
 729         if (--sd->ag_cnt >= 0)
 730                 return;
 731         sd->ag_cnt = AG_CNT_START;
 732
 733         Gbright = Et_getgainG(gspca_dev);
 734         reg_r(gspca_dev, ET_LUMA_CENTER, 4);
 735         g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
 736         r = gspca_dev->usb_buf[1];
 737         b = gspca_dev->usb_buf[2];
 738         r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
 739         b = ((b << 7) >> 10);
 740         g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
 741         luma = LIMIT(r + g + b);
 742         PDEBUG(D_FRAM, "Etoms luma G %d", luma);
 743         if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
 744                 Gbright += (luma_mean - luma) >> spring;
 745                 Gbright = BLIMIT(Gbright);
 746                 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
 747                 Et_setgainG(gspca_dev, (__u8) Gbright);
 748         }
 749 }
 750
 751 #undef BLIMIT
 752 #undef LIMIT
 753
 754 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 755                         u8 *data,                       /* isoc packet */
 756                         int len)                        /* iso packet length */
 757 {
 758         int seqframe;
 759
 760         seqframe = data[0] & 0x3f;
 761         len = (int) (((data[0] & 0xc0) << 2) | data[1]);
 762         if (seqframe == 0x3f) {
 763                 PDEBUG(D_FRAM,
 764                        "header packet found datalength %d !!", len);
 765                 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
 766                        data[2], data[3], data[4], data[5]);
 767                 data += 30;
 768                 /* don't change datalength as the chips provided it */
 769                 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
 770                 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
 771                 return;
 772         }
 773         if (len) {
 774                 data += 8;
 775                 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 776         } else {                        /* Drop Packet */
 777                 gspca_dev->last_packet_type = DISCARD_PACKET;
 778         }
 779 }
 780
 781 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 782 {
 783         struct sd *sd = (struct sd *) gspca_dev;
 784
 785         sd->brightness = val;
 786         if (gspca_dev->streaming)
 787                 setbrightness(gspca_dev);
 788         return 0;
 789 }
 790
 791 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 792 {
 793         struct sd *sd = (struct sd *) gspca_dev;
 794
 795         *val = sd->brightness;
 796         return 0;
 797 }
 798
 799 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 800 {
 801         struct sd *sd = (struct sd *) gspca_dev;
 802
 803         sd->contrast = val;
 804         if (gspca_dev->streaming)
 805                 setcontrast(gspca_dev);
 806         return 0;
 807 }
 808
 809 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 810 {
 811         struct sd *sd = (struct sd *) gspca_dev;
 812
 813         *val = sd->contrast;
 814         return 0;
 815 }
 816
 817 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
 818 {
 819         struct sd *sd = (struct sd *) gspca_dev;
 820
 821         sd->colors = val;
 822         if (gspca_dev->streaming)
 823                 setcolors(gspca_dev);
 824         return 0;
 825 }
 826
 827 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
 828 {
 829         struct sd *sd = (struct sd *) gspca_dev;
 830
 831         *val = sd->colors;
 832         return 0;
 833 }
 834
 835 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
 836 {
 837         struct sd *sd = (struct sd *) gspca_dev;
 838
 839         sd->autogain = val;
 840         if (gspca_dev->streaming)
 841                 setautogain(gspca_dev);
 842         return 0;
 843 }
 844
 845 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
 846 {
 847         struct sd *sd = (struct sd *) gspca_dev;
 848
 849         *val = sd->autogain;
 850         return 0;
 851 }
 852
 853 /* sub-driver description */
 854 static const struct sd_desc sd_desc = {
 855         .name = MODULE_NAME,
 856         .ctrls = sd_ctrls,
 857         .nctrls = ARRAY_SIZE(sd_ctrls),
 858         .config = sd_config,
 859         .init = sd_init,
 860         .start = sd_start,
 861         .stopN = sd_stopN,
 862         .pkt_scan = sd_pkt_scan,
 863         .dq_callback = do_autogain,
 864 };
 865
 866 /* -- module initialisation -- */
 867 static const struct usb_device_id device_table[] __devinitconst = {
 868         {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
 869 #if !defined CONFIG_USB_ET61X251 && !defined CONFIG_USB_ET61X251_MODULE
 870         {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
 871 #endif
 872         {}
 873 };
 874
 875 MODULE_DEVICE_TABLE(usb, device_table);
 876
 877 /* -- device connect -- */
 878 static int __devinit sd_probe(struct usb_interface *intf,
 879                     const struct usb_device_id *id)
 880 {
 881         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 882                                THIS_MODULE);
 883 }
 884
 885 static struct usb_driver sd_driver = {
 886         .name = MODULE_NAME,
 887         .id_table = device_table,
 888         .probe = sd_probe,
 889         .disconnect = gspca_disconnect,
 890 #ifdef CONFIG_PM
 891         .suspend = gspca_suspend,
 892         .resume = gspca_resume,
 893 #endif
 894 };
 895
 896 /* -- module insert / remove -- */
 897 static int __init sd_mod_init(void)
 898 {
 899         int ret;
 900         ret = usb_register(&sd_driver);
 901         if (ret < 0)
 902                 return ret;
 903         PDEBUG(D_PROBE, "registered");
 904         return 0;
 905 }
 906
 907 static void __exit sd_mod_exit(void)
 908 {
 909         usb_deregister(&sd_driver);
 910         PDEBUG(D_PROBE, "deregistered");
 911 }
 912
 913 module_init(sd_mod_init);
 914 module_exit(sd_mod_exit);