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 #define DRIVER_VERSION_NUMBER   KERNEL_VERSION(2, 1, 7)
  26 static const char version[] = "2.1.7";
  27
  28 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  29 MODULE_DESCRIPTION("Etoms USB Camera Driver");
  30 MODULE_LICENSE("GPL");
  31
  32 /* specific webcam descriptor */
  33 struct sd {
  34         struct gspca_dev gspca_dev;     /* !! must be the first item */
  35
  36         unsigned char brightness;
  37         unsigned char contrast;
  38         unsigned char colors;
  39         unsigned char autogain;
  40
  41         char sensor;
  42 #define SENSOR_PAS106 0
  43 #define SENSOR_TAS5130CXX 1
  44         signed char ag_cnt;
  45 #define AG_CNT_START 13
  46 };
  47
  48 /* V4L2 controls supported by the driver */
  49 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  50 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  51 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  52 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  53 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
  54 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
  55 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
  56 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
  57
  58 static struct ctrl sd_ctrls[] = {
  59         {
  60          {
  61           .id = V4L2_CID_BRIGHTNESS,
  62           .type = V4L2_CTRL_TYPE_INTEGER,
  63           .name = "Brightness",
  64           .minimum = 1,
  65           .maximum = 127,
  66           .step = 1,
  67 #define BRIGHTNESS_DEF 63
  68           .default_value = BRIGHTNESS_DEF,
  69           },
  70          .set = sd_setbrightness,
  71          .get = sd_getbrightness,
  72          },
  73         {
  74          {
  75           .id = V4L2_CID_CONTRAST,
  76           .type = V4L2_CTRL_TYPE_INTEGER,
  77           .name = "Contrast",
  78           .minimum = 0,
  79           .maximum = 255,
  80           .step = 1,
  81 #define CONTRAST_DEF 127
  82           .default_value = CONTRAST_DEF,
  83           },
  84          .set = sd_setcontrast,
  85          .get = sd_getcontrast,
  86          },
  87         {
  88          {
  89           .id = V4L2_CID_SATURATION,
  90           .type = V4L2_CTRL_TYPE_INTEGER,
  91           .name = "Color",
  92           .minimum = 0,
  93           .maximum = 15,
  94           .step = 1,
  95 #define COLOR_DEF 7
  96           .default_value = COLOR_DEF,
  97           },
  98          .set = sd_setcolors,
  99          .get = sd_getcolors,
 100          },
 101         {
 102          {
 103           .id = V4L2_CID_AUTOGAIN,
 104           .type = V4L2_CTRL_TYPE_BOOLEAN,
 105           .name = "Auto Gain",
 106           .minimum = 0,
 107           .maximum = 1,
 108           .step = 1,
 109 #define AUTOGAIN_DEF 1
 110           .default_value = AUTOGAIN_DEF,
 111           },
 112          .set = sd_setautogain,
 113          .get = sd_getautogain,
 114          },
 115 };
 116
 117 static struct v4l2_pix_format vga_mode[] = {
 118         {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 119                 .bytesperline = 320,
 120                 .sizeimage = 320 * 240,
 121                 .colorspace = V4L2_COLORSPACE_SRGB,
 122                 .priv = 1},
 123 /*      {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 124                 .bytesperline = 640,
 125                 .sizeimage = 640 * 480,
 126                 .colorspace = V4L2_COLORSPACE_SRGB,
 127                 .priv = 0}, */
 128 };
 129
 130 static struct v4l2_pix_format sif_mode[] = {
 131         {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 132                 .bytesperline = 176,
 133                 .sizeimage = 176 * 144,
 134                 .colorspace = V4L2_COLORSPACE_SRGB,
 135                 .priv = 1},
 136         {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 137                 .bytesperline = 352,
 138                 .sizeimage = 352 * 288,
 139                 .colorspace = V4L2_COLORSPACE_SRGB,
 140                 .priv = 0},
 141 };
 142
 143 #define ETOMS_ALT_SIZE_1000   12
 144
 145 #define ET_GPIO_DIR_CTRL 0x04   /* Control IO bit[0..5] (0 in  1 out) */
 146 #define ET_GPIO_OUT 0x05        /* Only IO data */
 147 #define ET_GPIO_IN 0x06         /* Read Only IO data */
 148 #define ET_RESET_ALL 0x03
 149 #define ET_ClCK 0x01
 150 #define ET_CTRL 0x02            /* enable i2c OutClck Powerdown mode */
 151
 152 #define ET_COMP 0x12            /* Compression register */
 153 #define ET_MAXQt 0x13
 154 #define ET_MINQt 0x14
 155 #define ET_COMP_VAL0 0x02
 156 #define ET_COMP_VAL1 0x03
 157
 158 #define ET_REG1d 0x1d
 159 #define ET_REG1e 0x1e
 160 #define ET_REG1f 0x1f
 161 #define ET_REG20 0x20
 162 #define ET_REG21 0x21
 163 #define ET_REG22 0x22
 164 #define ET_REG23 0x23
 165 #define ET_REG24 0x24
 166 #define ET_REG25 0x25
 167 /* base registers for luma calculation */
 168 #define ET_LUMA_CENTER 0x39
 169
 170 #define ET_G_RED 0x4d
 171 #define ET_G_GREEN1 0x4e
 172 #define ET_G_BLUE 0x4f
 173 #define ET_G_GREEN2 0x50
 174 #define ET_G_GR_H 0x51
 175 #define ET_G_GB_H 0x52
 176
 177 #define ET_O_RED 0x34
 178 #define ET_O_GREEN1 0x35
 179 #define ET_O_BLUE 0x36
 180 #define ET_O_GREEN2 0x37
 181
 182 #define ET_SYNCHRO 0x68
 183 #define ET_STARTX 0x69
 184 #define ET_STARTY 0x6a
 185 #define ET_WIDTH_LOW 0x6b
 186 #define ET_HEIGTH_LOW 0x6c
 187 #define ET_W_H_HEIGTH 0x6d
 188
 189 #define ET_REG6e 0x6e           /* OBW */
 190 #define ET_REG6f 0x6f           /* OBW */
 191 #define ET_REG70 0x70           /* OBW_AWB */
 192 #define ET_REG71 0x71           /* OBW_AWB */
 193 #define ET_REG72 0x72           /* OBW_AWB */
 194 #define ET_REG73 0x73           /* Clkdelay ns */
 195 #define ET_REG74 0x74           /* test pattern */
 196 #define ET_REG75 0x75           /* test pattern */
 197
 198 #define ET_I2C_CLK 0x8c
 199 #define ET_PXL_CLK 0x60
 200
 201 #define ET_I2C_BASE 0x89
 202 #define ET_I2C_COUNT 0x8a
 203 #define ET_I2C_PREFETCH 0x8b
 204 #define ET_I2C_REG 0x88
 205 #define ET_I2C_DATA7 0x87
 206 #define ET_I2C_DATA6 0x86
 207 #define ET_I2C_DATA5 0x85
 208 #define ET_I2C_DATA4 0x84
 209 #define ET_I2C_DATA3 0x83
 210 #define ET_I2C_DATA2 0x82
 211 #define ET_I2C_DATA1 0x81
 212 #define ET_I2C_DATA0 0x80
 213
 214 #define PAS106_REG2 0x02        /* pxlClk = systemClk/(reg2) */
 215 #define PAS106_REG3 0x03        /* line/frame H [11..4] */
 216 #define PAS106_REG4 0x04        /* line/frame L [3..0] */
 217 #define PAS106_REG5 0x05        /* exposure time line offset(default 5) */
 218 #define PAS106_REG6 0x06        /* exposure time pixel offset(default 6) */
 219 #define PAS106_REG7 0x07        /* signbit Dac (default 0) */
 220 #define PAS106_REG9 0x09
 221 #define PAS106_REG0e 0x0e       /* global gain [4..0](default 0x0e) */
 222 #define PAS106_REG13 0x13       /* end i2c write */
 223
 224 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 225
 226 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
 227
 228 static const __u8 I2c3[] = { 0x12, 0x05 };
 229
 230 static const __u8 I2c4[] = { 0x41, 0x08 };
 231
 232 /* read 'len' bytes to gspca_dev->usb_buf */
 233 static void reg_r(struct gspca_dev *gspca_dev,
 234                   __u16 index,
 235                   __u16 len)
 236 {
 237         struct usb_device *dev = gspca_dev->dev;
 238
 239 #ifdef CONFIG_VIDEO_ADV_DEBUG
 240         if (len > sizeof gspca_dev->usb_buf) {
 241                 err("reg_r: buffer overflow");
 242                 return;
 243         }
 244 #endif
 245         usb_control_msg(dev,
 246                         usb_rcvctrlpipe(dev, 0),
 247                         0,
 248                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 249                         0,
 250                         index, gspca_dev->usb_buf, len, 500);
 251         PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
 252                         index, gspca_dev->usb_buf[0]);
 253 }
 254
 255 static void reg_w_val(struct gspca_dev *gspca_dev,
 256                         __u16 index,
 257                         __u8 val)
 258 {
 259         struct usb_device *dev = gspca_dev->dev;
 260
 261         gspca_dev->usb_buf[0] = val;
 262         usb_control_msg(dev,
 263                         usb_sndctrlpipe(dev, 0),
 264                         0,
 265                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 266                         0,
 267                         index, gspca_dev->usb_buf, 1, 500);
 268 }
 269
 270 static void reg_w(struct gspca_dev *gspca_dev,
 271                   __u16 index,
 272                   const __u8 *buffer,
 273                   __u16 len)
 274 {
 275         struct usb_device *dev = gspca_dev->dev;
 276
 277 #ifdef CONFIG_VIDEO_ADV_DEBUG
 278         if (len > sizeof gspca_dev->usb_buf) {
 279                 err("reg_w: buffer overflow");
 280                 return;
 281         }
 282         PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
 283 #endif
 284         memcpy(gspca_dev->usb_buf, buffer, len);
 285         usb_control_msg(dev,
 286                         usb_sndctrlpipe(dev, 0),
 287                         0,
 288                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 289                         0, index, gspca_dev->usb_buf, len, 500);
 290 }
 291
 292 static int i2c_w(struct gspca_dev *gspca_dev,
 293                  __u8 reg,
 294                  const __u8 *buffer,
 295                  __u16 len, __u8 mode)
 296 {
 297         /* buffer should be [D0..D7] */
 298         __u8 ptchcount;
 299
 300         /* set the base address */
 301         reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 302                                          /* sensor base for the pas106 */
 303         /* set count and prefetch */
 304         ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
 305         reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
 306         /* set the register base */
 307         reg_w_val(gspca_dev, ET_I2C_REG, reg);
 308         while (--len >= 0)
 309                 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
 310         return 0;
 311 }
 312
 313 static int i2c_r(struct gspca_dev *gspca_dev,
 314                         __u8 reg)
 315 {
 316         /* set the base address */
 317         reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 318                                         /* sensor base for the pas106 */
 319         /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
 320         reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
 321         reg_w_val(gspca_dev, ET_I2C_REG, reg);  /* set the register base */
 322         reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02);    /* prefetch */
 323         reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
 324         reg_r(gspca_dev, ET_I2C_DATA0, 1);      /* read one byte */
 325         return 0;
 326 }
 327
 328 static int Et_WaitStatus(struct gspca_dev *gspca_dev)
 329 {
 330         int retry = 10;
 331
 332         while (retry--) {
 333                 reg_r(gspca_dev, ET_ClCK, 1);
 334                 if (gspca_dev->usb_buf[0] != 0)
 335                         return 1;
 336         }
 337         return 0;
 338 }
 339
 340 static int et_video(struct gspca_dev *gspca_dev,
 341                     int on)
 342 {
 343         int ret;
 344
 345         reg_w_val(gspca_dev, ET_GPIO_OUT,
 346                   on ? 0x10             /* startvideo - set Bit5 */
 347                      : 0);              /* stopvideo */
 348         ret = Et_WaitStatus(gspca_dev);
 349         if (ret != 0)
 350                 PDEBUG(D_ERR, "timeout video on/off");
 351         return ret;
 352 }
 353
 354 static void Et_init2(struct gspca_dev *gspca_dev)
 355 {
 356         __u8 value;
 357         static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
 358
 359         PDEBUG(D_STREAM, "Open Init2 ET");
 360         reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
 361         reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
 362         reg_r(gspca_dev, ET_GPIO_IN, 1);
 363         reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
 364         reg_w_val(gspca_dev, ET_CTRL, 0x1b);
 365
 366         /*  compression et subsampling */
 367         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 368                 value = ET_COMP_VAL1;   /* 320 */
 369         else
 370                 value = ET_COMP_VAL0;   /* 640 */
 371         reg_w_val(gspca_dev, ET_COMP, value);
 372         reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
 373         reg_w_val(gspca_dev, ET_MINQt, 0x04);
 374         /* undocumented registers */
 375         reg_w_val(gspca_dev, ET_REG1d, 0xff);
 376         reg_w_val(gspca_dev, ET_REG1e, 0xff);
 377         reg_w_val(gspca_dev, ET_REG1f, 0xff);
 378         reg_w_val(gspca_dev, ET_REG20, 0x35);
 379         reg_w_val(gspca_dev, ET_REG21, 0x01);
 380         reg_w_val(gspca_dev, ET_REG22, 0x00);
 381         reg_w_val(gspca_dev, ET_REG23, 0xff);
 382         reg_w_val(gspca_dev, ET_REG24, 0xff);
 383         reg_w_val(gspca_dev, ET_REG25, 0x0f);
 384         /* colors setting */
 385         reg_w_val(gspca_dev, 0x30, 0x11);               /* 0x30 */
 386         reg_w_val(gspca_dev, 0x31, 0x40);
 387         reg_w_val(gspca_dev, 0x32, 0x00);
 388         reg_w_val(gspca_dev, ET_O_RED, 0x00);           /* 0x34 */
 389         reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
 390         reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
 391         reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
 392         /*************/
 393         reg_w_val(gspca_dev, ET_G_RED, 0x80);           /* 0x4d */
 394         reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 395         reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 396         reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 397         reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 398         reg_w_val(gspca_dev, ET_G_GB_H, 0x00);          /* 0x52 */
 399         /* Window control registers */
 400         reg_w_val(gspca_dev, 0x61, 0x80);               /* use cmc_out */
 401         reg_w_val(gspca_dev, 0x62, 0x02);
 402         reg_w_val(gspca_dev, 0x63, 0x03);
 403         reg_w_val(gspca_dev, 0x64, 0x14);
 404         reg_w_val(gspca_dev, 0x65, 0x0e);
 405         reg_w_val(gspca_dev, 0x66, 0x02);
 406         reg_w_val(gspca_dev, 0x67, 0x02);
 407
 408         /**************************************/
 409         reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f);         /* 0x68 */
 410         reg_w_val(gspca_dev, ET_STARTX, 0x69);          /* 0x6a //0x69 */
 411         reg_w_val(gspca_dev, ET_STARTY, 0x0d);          /* 0x0d //0x0c */
 412         reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
 413         reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
 414         reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60);      /* 6d */
 415         reg_w_val(gspca_dev, ET_REG6e, 0x86);
 416         reg_w_val(gspca_dev, ET_REG6f, 0x01);
 417         reg_w_val(gspca_dev, ET_REG70, 0x26);
 418         reg_w_val(gspca_dev, ET_REG71, 0x7a);
 419         reg_w_val(gspca_dev, ET_REG72, 0x01);
 420         /* Clock Pattern registers ***************** */
 421         reg_w_val(gspca_dev, ET_REG73, 0x00);
 422         reg_w_val(gspca_dev, ET_REG74, 0x18);           /* 0x28 */
 423         reg_w_val(gspca_dev, ET_REG75, 0x0f);           /* 0x01 */
 424         /**********************************************/
 425         reg_w_val(gspca_dev, 0x8a, 0x20);
 426         reg_w_val(gspca_dev, 0x8d, 0x0f);
 427         reg_w_val(gspca_dev, 0x8e, 0x08);
 428         /**************************************/
 429         reg_w_val(gspca_dev, 0x03, 0x08);
 430         reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
 431         reg_w_val(gspca_dev, 0x81, 0xff);
 432         reg_w_val(gspca_dev, 0x80, 0x00);
 433         reg_w_val(gspca_dev, 0x81, 0xff);
 434         reg_w_val(gspca_dev, 0x80, 0x20);
 435         reg_w_val(gspca_dev, 0x03, 0x01);
 436         reg_w_val(gspca_dev, 0x03, 0x00);
 437         reg_w_val(gspca_dev, 0x03, 0x08);
 438         /********************************************/
 439
 440 /*      reg_r(gspca_dev, ET_I2C_BASE, 1);
 441                                          always 0x40 as the pas106 ??? */
 442         /* set the sensor */
 443         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 444                 value = 0x04;           /* 320 */
 445         else                            /* 640 */
 446                 value = 0x1e;   /* 0x17  * setting PixelClock
 447                                          * 0x03 mean 24/(3+1) = 6 Mhz
 448                                          * 0x05 -> 24/(5+1) = 4 Mhz
 449                                          * 0x0b -> 24/(11+1) = 2 Mhz
 450                                          * 0x17 -> 24/(23+1) = 1 Mhz
 451                                          */
 452         reg_w_val(gspca_dev, ET_PXL_CLK, value);
 453         /* now set by fifo the FormatLine setting */
 454         reg_w(gspca_dev, 0x62, FormLine, 6);
 455
 456         /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
 457         reg_w_val(gspca_dev, 0x81, 0x47);       /* 0x47; */
 458         reg_w_val(gspca_dev, 0x80, 0x40);       /* 0x40; */
 459         /* Pedro change */
 460         /* Brightness change Brith+ decrease value */
 461         /* Brigth- increase value */
 462         /* original value = 0x70; */
 463         reg_w_val(gspca_dev, 0x81, 0x30);       /* 0x20; - set brightness */
 464         reg_w_val(gspca_dev, 0x80, 0x20);       /* 0x20; */
 465 }
 466
 467 static void setcolors(struct gspca_dev *gspca_dev)
 468 {
 469         struct sd *sd = (struct sd *) gspca_dev;
 470         __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
 471         __u8 i2cflags = 0x01;
 472         /* __u8 green = 0; */
 473         __u8 colors = sd->colors;
 474
 475         I2cc[3] = colors;       /* red */
 476         I2cc[0] = 15 - colors;  /* blue */
 477         /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
 478         /* I2cc[1] = I2cc[2] = green; */
 479         if (sd->sensor == SENSOR_PAS106) {
 480                 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 481                 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
 482         }
 483 /*      PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
 484                 I2cc[3], I2cc[0], green); */
 485 }
 486
 487 static void getcolors(struct gspca_dev *gspca_dev)
 488 {
 489         struct sd *sd = (struct sd *) gspca_dev;
 490
 491         if (sd->sensor == SENSOR_PAS106) {
 492 /*              i2c_r(gspca_dev, PAS106_REG9);           * blue */
 493                 i2c_r(gspca_dev, PAS106_REG9 + 3);      /* red */
 494                 sd->colors = gspca_dev->usb_buf[0] & 0x0f;
 495         }
 496 }
 497
 498 static void Et_init1(struct gspca_dev *gspca_dev)
 499 {
 500         __u8 value;
 501 /*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
 502         __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
 503                                                 /* try 1/120 0x6d 0xcd 0x40 */
 504 /*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
 505                                                  * 1/60000 hmm ?? */
 506
 507         PDEBUG(D_STREAM, "Open Init1 ET");
 508         reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
 509         reg_r(gspca_dev, ET_GPIO_IN, 1);
 510         reg_w_val(gspca_dev, ET_RESET_ALL, 1);
 511         reg_w_val(gspca_dev, ET_RESET_ALL, 0);
 512         reg_w_val(gspca_dev, ET_ClCK, 0x10);
 513         reg_w_val(gspca_dev, ET_CTRL, 0x19);
 514         /*   compression et subsampling */
 515         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 516                 value = ET_COMP_VAL1;
 517         else
 518                 value = ET_COMP_VAL0;
 519         PDEBUG(D_STREAM, "Open mode %d Compression %d",
 520                gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
 521                value);
 522         reg_w_val(gspca_dev, ET_COMP, value);
 523         reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
 524         reg_w_val(gspca_dev, ET_MINQt, 0x02);
 525         /* undocumented registers */
 526         reg_w_val(gspca_dev, ET_REG1d, 0xff);
 527         reg_w_val(gspca_dev, ET_REG1e, 0xff);
 528         reg_w_val(gspca_dev, ET_REG1f, 0xff);
 529         reg_w_val(gspca_dev, ET_REG20, 0x35);
 530         reg_w_val(gspca_dev, ET_REG21, 0x01);
 531         reg_w_val(gspca_dev, ET_REG22, 0x00);
 532         reg_w_val(gspca_dev, ET_REG23, 0xf7);
 533         reg_w_val(gspca_dev, ET_REG24, 0xff);
 534         reg_w_val(gspca_dev, ET_REG25, 0x07);
 535         /* colors setting */
 536         reg_w_val(gspca_dev, ET_G_RED, 0x80);
 537         reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 538         reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 539         reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 540         reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 541         reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
 542         /* Window control registers */
 543         reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
 544         reg_w_val(gspca_dev, ET_STARTX, 0x56);          /* 0x56 */
 545         reg_w_val(gspca_dev, ET_STARTY, 0x05);          /* 0x04 */
 546         reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
 547         reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
 548         reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
 549         reg_w_val(gspca_dev, ET_REG6e, 0x86);
 550         reg_w_val(gspca_dev, ET_REG6f, 0x01);
 551         reg_w_val(gspca_dev, ET_REG70, 0x86);
 552         reg_w_val(gspca_dev, ET_REG71, 0x14);
 553         reg_w_val(gspca_dev, ET_REG72, 0x00);
 554         /* Clock Pattern registers */
 555         reg_w_val(gspca_dev, ET_REG73, 0x00);
 556         reg_w_val(gspca_dev, ET_REG74, 0x00);
 557         reg_w_val(gspca_dev, ET_REG75, 0x0a);
 558         reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
 559         reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
 560         /* set the sensor */
 561         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
 562                 I2c0[0] = 0x06;
 563                 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 564                 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 565                 value = 0x06;
 566                 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 567                 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 568                 /* value = 0x1f; */
 569                 value = 0x04;
 570                 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 571         } else {
 572                 I2c0[0] = 0x0a;
 573
 574                 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 575                 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 576                 value = 0x0a;
 577                 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 578                 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 579                 value = 0x04;
 580                 /* value = 0x10; */
 581                 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 582                 /* bit 2 enable bit 1:2 select 0 1 2 3
 583                    value = 0x07;                                * curve 0 *
 584                    i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
 585                  */
 586         }
 587
 588 /*      value = 0x01; */
 589 /*      value = 0x22; */
 590 /*      i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
 591         /* magnetude and sign bit for DAC */
 592         i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
 593         /* now set by fifo the whole colors setting */
 594         reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
 595         getcolors(gspca_dev);
 596         setcolors(gspca_dev);
 597 }
 598
 599 /* this function is called at probe time */
 600 static int sd_config(struct gspca_dev *gspca_dev,
 601                      const struct usb_device_id *id)
 602 {
 603         struct sd *sd = (struct sd *) gspca_dev;
 604         struct cam *cam;
 605         __u16 vendor;
 606         __u16 product;
 607
 608         vendor = id->idVendor;
 609         product = id->idProduct;
 610 /*      switch (vendor) { */
 611 /*      case 0x102c:            * Etoms */
 612                 switch (product) {
 613                 case 0x6151:
 614                         sd->sensor = SENSOR_PAS106;     /* Etoms61x151 */
 615                         break;
 616                 case 0x6251:
 617                         sd->sensor = SENSOR_TAS5130CXX; /* Etoms61x251 */
 618                         break;
 619 /*              } */
 620 /*              break; */
 621         }
 622         cam = &gspca_dev->cam;
 623         cam->dev_name = (char *) id->driver_info;
 624         cam->epaddr = 1;
 625         if (sd->sensor == SENSOR_PAS106) {
 626                 cam->cam_mode = sif_mode;
 627                 cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
 628         } else {
 629                 cam->cam_mode = vga_mode;
 630                 cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
 631         }
 632         sd->brightness = BRIGHTNESS_DEF;
 633         sd->contrast = CONTRAST_DEF;
 634         sd->colors = COLOR_DEF;
 635         sd->autogain = AUTOGAIN_DEF;
 636         return 0;
 637 }
 638
 639 /* this function is called at open time */
 640 static int sd_open(struct gspca_dev *gspca_dev)
 641 {
 642         struct sd *sd = (struct sd *) gspca_dev;
 643
 644         if (sd->sensor == SENSOR_PAS106)
 645                 Et_init1(gspca_dev);
 646         else
 647                 Et_init2(gspca_dev);
 648         reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 649         et_video(gspca_dev, 0);         /* video off */
 650         return 0;
 651 }
 652
 653 /* -- start the camera -- */
 654 static void sd_start(struct gspca_dev *gspca_dev)
 655 {
 656         struct sd *sd = (struct sd *) gspca_dev;
 657
 658         if (sd->sensor == SENSOR_PAS106)
 659                 Et_init1(gspca_dev);
 660         else
 661                 Et_init2(gspca_dev);
 662
 663         reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 664         et_video(gspca_dev, 1);         /* video on */
 665 }
 666
 667 static void sd_stopN(struct gspca_dev *gspca_dev)
 668 {
 669         et_video(gspca_dev, 0);         /* video off */
 670 }
 671
 672 static void sd_stop0(struct gspca_dev *gspca_dev)
 673 {
 674 }
 675
 676 static void sd_close(struct gspca_dev *gspca_dev)
 677 {
 678 }
 679
 680 static void setbrightness(struct gspca_dev *gspca_dev)
 681 {
 682         struct sd *sd = (struct sd *) gspca_dev;
 683         int i;
 684         __u8 brightness = sd->brightness;
 685
 686         for (i = 0; i < 4; i++)
 687                 reg_w_val(gspca_dev, ET_O_RED + i, brightness);
 688 }
 689
 690 static void getbrightness(struct gspca_dev *gspca_dev)
 691 {
 692         struct sd *sd = (struct sd *) gspca_dev;
 693         int i;
 694         int brightness = 0;
 695
 696         for (i = 0; i < 4; i++) {
 697                 reg_r(gspca_dev, ET_O_RED + i, 1);
 698                 brightness += gspca_dev->usb_buf[0];
 699         }
 700         sd->brightness = brightness >> 3;
 701 }
 702
 703 static void setcontrast(struct gspca_dev *gspca_dev)
 704 {
 705         struct sd *sd = (struct sd *) gspca_dev;
 706         __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 707         __u8 contrast = sd->contrast;
 708
 709         memset(RGBG, contrast, sizeof(RGBG) - 2);
 710         reg_w(gspca_dev, ET_G_RED, RGBG, 6);
 711 }
 712
 713 static void getcontrast(struct gspca_dev *gspca_dev)
 714 {
 715         struct sd *sd = (struct sd *) gspca_dev;
 716         int i;
 717         int contrast = 0;
 718
 719         for (i = 0; i < 4; i++) {
 720                 reg_r(gspca_dev, ET_G_RED + i, 1);
 721                 contrast += gspca_dev->usb_buf[0];
 722         }
 723         sd->contrast = contrast >> 2;
 724 }
 725
 726 static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
 727 {
 728         struct sd *sd = (struct sd *) gspca_dev;
 729
 730         if (sd->sensor == SENSOR_PAS106) {
 731                 i2c_r(gspca_dev, PAS106_REG0e);
 732                 PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
 733                 return gspca_dev->usb_buf[0];
 734         }
 735         return 0x1f;
 736 }
 737
 738 static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
 739 {
 740         struct sd *sd = (struct sd *) gspca_dev;
 741
 742         if (sd->sensor == SENSOR_PAS106) {
 743                 __u8 i2cflags = 0x01;
 744
 745                 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 746                 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
 747         }
 748 }
 749
 750 #define BLIMIT(bright) \
 751         (__u8)((bright > 0x1f)?0x1f:((bright < 4)?3:bright))
 752 #define LIMIT(color) \
 753         (unsigned char)((color > 0xff)?0xff:((color < 0)?0:color))
 754
 755 static void setautogain(struct gspca_dev *gspca_dev)
 756 {
 757         __u8 luma = 0;
 758         __u8 luma_mean = 128;
 759         __u8 luma_delta = 20;
 760         __u8 spring = 4;
 761         int Gbright = 0;
 762         __u8 r, g, b;
 763
 764         Gbright = Et_getgainG(gspca_dev);
 765         reg_r(gspca_dev, ET_LUMA_CENTER, 4);
 766         g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
 767         r = gspca_dev->usb_buf[1];
 768         b = gspca_dev->usb_buf[2];
 769         r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
 770         b = ((b << 7) >> 10);
 771         g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
 772         luma = LIMIT(r + g + b);
 773         PDEBUG(D_FRAM, "Etoms luma G %d", luma);
 774         if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
 775                 Gbright += (luma_mean - luma) >> spring;
 776                 Gbright = BLIMIT(Gbright);
 777                 PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
 778                 Et_setgainG(gspca_dev, (__u8) Gbright);
 779         }
 780 }
 781
 782 #undef BLIMIT
 783 #undef LIMIT
 784
 785 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 786                         struct gspca_frame *frame,      /* target */
 787                         __u8 *data,                     /* isoc packet */
 788                         int len)                        /* iso packet length */
 789 {
 790         struct sd *sd;
 791         int seqframe;
 792
 793         seqframe = data[0] & 0x3f;
 794         len = (int) (((data[0] & 0xc0) << 2) | data[1]);
 795         if (seqframe == 0x3f) {
 796                 PDEBUG(D_FRAM,
 797                        "header packet found datalength %d !!", len);
 798                 PDEBUG(D_FRAM, "G %d R %d G %d B %d",
 799                        data[2], data[3], data[4], data[5]);
 800                 data += 30;
 801                 /* don't change datalength as the chips provided it */
 802                 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
 803                                         data, 0);
 804                 gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, len);
 805                 sd = (struct sd *) gspca_dev;
 806                 if (sd->ag_cnt >= 0) {
 807                         if (--sd->ag_cnt < 0) {
 808                                 sd->ag_cnt = AG_CNT_START;
 809                                 setautogain(gspca_dev);
 810                         }
 811                 }
 812                 return;
 813         }
 814         if (len) {
 815                 data += 8;
 816                 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
 817         } else {                        /* Drop Packet */
 818                 gspca_dev->last_packet_type = DISCARD_PACKET;
 819         }
 820 }
 821
 822 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 823 {
 824         struct sd *sd = (struct sd *) gspca_dev;
 825
 826         sd->brightness = val;
 827         if (gspca_dev->streaming)
 828                 setbrightness(gspca_dev);
 829         return 0;
 830 }
 831
 832 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 833 {
 834         struct sd *sd = (struct sd *) gspca_dev;
 835
 836         getbrightness(gspca_dev);
 837         *val = sd->brightness;
 838         return 0;
 839 }
 840
 841 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 842 {
 843         struct sd *sd = (struct sd *) gspca_dev;
 844
 845         sd->contrast = val;
 846         if (gspca_dev->streaming)
 847                 setcontrast(gspca_dev);
 848         return 0;
 849 }
 850
 851 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 852 {
 853         struct sd *sd = (struct sd *) gspca_dev;
 854
 855         getcontrast(gspca_dev);
 856         *val = sd->contrast;
 857         return 0;
 858 }
 859
 860 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
 861 {
 862         struct sd *sd = (struct sd *) gspca_dev;
 863
 864         sd->colors = val;
 865         if (gspca_dev->streaming)
 866                 setcolors(gspca_dev);
 867         return 0;
 868 }
 869
 870 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
 871 {
 872         struct sd *sd = (struct sd *) gspca_dev;
 873
 874         getcolors(gspca_dev);
 875         *val = sd->colors;
 876         return 0;
 877 }
 878
 879 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
 880 {
 881         struct sd *sd = (struct sd *) gspca_dev;
 882
 883         sd->autogain = val;
 884         if (val)
 885                 sd->ag_cnt = AG_CNT_START;
 886         else
 887                 sd->ag_cnt = -1;
 888         return 0;
 889 }
 890
 891 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
 892 {
 893         struct sd *sd = (struct sd *) gspca_dev;
 894
 895         *val = sd->autogain;
 896         return 0;
 897 }
 898
 899 /* sub-driver description */
 900 static struct sd_desc sd_desc = {
 901         .name = MODULE_NAME,
 902         .ctrls = sd_ctrls,
 903         .nctrls = ARRAY_SIZE(sd_ctrls),
 904         .config = sd_config,
 905         .open = sd_open,
 906         .start = sd_start,
 907         .stopN = sd_stopN,
 908         .stop0 = sd_stop0,
 909         .close = sd_close,
 910         .pkt_scan = sd_pkt_scan,
 911 };
 912
 913 /* -- module initialisation -- */
 914 #define DVNM(name) .driver_info = (kernel_ulong_t) name
 915 static __devinitdata struct usb_device_id device_table[] = {
 916 #ifndef CONFIG_USB_ET61X251
 917         {USB_DEVICE(0x102c, 0x6151), DVNM("Qcam Sangha CIF")},
 918 #endif
 919         {USB_DEVICE(0x102c, 0x6251), DVNM("Qcam xxxxxx VGA")},
 920         {}
 921 };
 922
 923 MODULE_DEVICE_TABLE(usb, device_table);
 924
 925 /* -- device connect -- */
 926 static int sd_probe(struct usb_interface *intf,
 927                     const struct usb_device_id *id)
 928 {
 929         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 930                                THIS_MODULE);
 931 }
 932
 933 static struct usb_driver sd_driver = {
 934         .name = MODULE_NAME,
 935         .id_table = device_table,
 936         .probe = sd_probe,
 937         .disconnect = gspca_disconnect,
 938 };
 939
 940 /* -- module insert / remove -- */
 941 static int __init sd_mod_init(void)
 942 {
 943         if (usb_register(&sd_driver) < 0)
 944                 return -1;
 945         PDEBUG(D_PROBE, "v%s registered", version);
 946         return 0;
 947 }
 948
 949 static void __exit sd_mod_exit(void)
 950 {
 951         usb_deregister(&sd_driver);
 952         PDEBUG(D_PROBE, "deregistered");
 953 }
 954
 955 module_init(sd_mod_init);
 956 module_exit(sd_mod_exit);