drivers/media/video/gspca/ov534.c

   1 /*
   2  * ov534-ov7xxx gspca driver
   3  *
   4  * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
   5  * Copyright (C) 2008 Jim Paris <jim@jtan.com>
   6  * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
   7  *
   8  * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
   9  * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
  10  * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
  11  *
  12  * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr
  13  * PS3 Eye camera - brightness, contrast, awb, agc, aec controls
  14  *                  added by Max Thrun <bear24rw@gmail.com>
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  29  */
  30
  31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  32
  33 #define MODULE_NAME "ov534"
  34
  35 #include "gspca.h"
  36
  37 #include <linux/fixp-arith.h>
  38
  39 #define OV534_REG_ADDRESS       0xf1    /* sensor address */
  40 #define OV534_REG_SUBADDR       0xf2
  41 #define OV534_REG_WRITE         0xf3
  42 #define OV534_REG_READ          0xf4
  43 #define OV534_REG_OPERATION     0xf5
  44 #define OV534_REG_STATUS        0xf6
  45
  46 #define OV534_OP_WRITE_3        0x37
  47 #define OV534_OP_WRITE_2        0x33
  48 #define OV534_OP_READ_2         0xf9
  49
  50 #define CTRL_TIMEOUT 500
  51
  52 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
  53 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
  54 MODULE_LICENSE("GPL");
  55
  56 /* controls */
  57 enum e_ctrl {
  58         HUE,
  59         SATURATION,
  60         BRIGHTNESS,
  61         CONTRAST,
  62         GAIN,
  63         EXPOSURE,
  64         AGC,
  65         AWB,
  66         AEC,
  67         SHARPNESS,
  68         HFLIP,
  69         VFLIP,
  70         LIGHTFREQ,
  71         NCTRLS          /* number of controls */
  72 };
  73
  74 /* specific webcam descriptor */
  75 struct sd {
  76         struct gspca_dev gspca_dev;     /* !! must be the first item */
  77
  78         struct gspca_ctrl ctrls[NCTRLS];
  79
  80         __u32 last_pts;
  81         u16 last_fid;
  82         u8 frame_rate;
  83
  84         u8 sensor;
  85 };
  86 enum sensors {
  87         SENSOR_OV767x,
  88         SENSOR_OV772x,
  89         NSENSORS
  90 };
  91
  92 /* V4L2 controls supported by the driver */
  93 static void sethue(struct gspca_dev *gspca_dev);
  94 static void setsaturation(struct gspca_dev *gspca_dev);
  95 static void setbrightness(struct gspca_dev *gspca_dev);
  96 static void setcontrast(struct gspca_dev *gspca_dev);
  97 static void setgain(struct gspca_dev *gspca_dev);
  98 static void setexposure(struct gspca_dev *gspca_dev);
  99 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val);
 100 static void setawb(struct gspca_dev *gspca_dev);
 101 static void setaec(struct gspca_dev *gspca_dev);
 102 static void setsharpness(struct gspca_dev *gspca_dev);
 103 static void sethvflip(struct gspca_dev *gspca_dev);
 104 static void setlightfreq(struct gspca_dev *gspca_dev);
 105
 106 static int sd_start(struct gspca_dev *gspca_dev);
 107 static void sd_stopN(struct gspca_dev *gspca_dev);
 108
 109 static const struct ctrl sd_ctrls[] = {
 110 [HUE] = {
 111                 {
 112                         .id      = V4L2_CID_HUE,
 113                         .type    = V4L2_CTRL_TYPE_INTEGER,
 114                         .name    = "Hue",
 115                         .minimum = -90,
 116                         .maximum = 90,
 117                         .step    = 1,
 118                         .default_value = 0,
 119                 },
 120                 .set_control = sethue
 121         },
 122 [SATURATION] = {
 123                 {
 124                         .id      = V4L2_CID_SATURATION,
 125                         .type    = V4L2_CTRL_TYPE_INTEGER,
 126                         .name    = "Saturation",
 127                         .minimum = 0,
 128                         .maximum = 255,
 129                         .step    = 1,
 130                         .default_value = 64,
 131                 },
 132                 .set_control = setsaturation
 133         },
 134 [BRIGHTNESS] = {
 135                 {
 136                         .id      = V4L2_CID_BRIGHTNESS,
 137                         .type    = V4L2_CTRL_TYPE_INTEGER,
 138                         .name    = "Brightness",
 139                         .minimum = 0,
 140                         .maximum = 255,
 141                         .step    = 1,
 142                         .default_value = 0,
 143                 },
 144                 .set_control = setbrightness
 145         },
 146 [CONTRAST] = {
 147                 {
 148                         .id      = V4L2_CID_CONTRAST,
 149                         .type    = V4L2_CTRL_TYPE_INTEGER,
 150                         .name    = "Contrast",
 151                         .minimum = 0,
 152                         .maximum = 255,
 153                         .step    = 1,
 154                         .default_value = 32,
 155                 },
 156                 .set_control = setcontrast
 157         },
 158 [GAIN] = {
 159                 {
 160                         .id      = V4L2_CID_GAIN,
 161                         .type    = V4L2_CTRL_TYPE_INTEGER,
 162                         .name    = "Main Gain",
 163                         .minimum = 0,
 164                         .maximum = 63,
 165                         .step    = 1,
 166                         .default_value = 20,
 167                 },
 168                 .set_control = setgain
 169         },
 170 [EXPOSURE] = {
 171                 {
 172                         .id      = V4L2_CID_EXPOSURE,
 173                         .type    = V4L2_CTRL_TYPE_INTEGER,
 174                         .name    = "Exposure",
 175                         .minimum = 0,
 176                         .maximum = 255,
 177                         .step    = 1,
 178                         .default_value = 120,
 179                 },
 180                 .set_control = setexposure
 181         },
 182 [AGC] = {
 183                 {
 184                         .id      = V4L2_CID_AUTOGAIN,
 185                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 186                         .name    = "Auto Gain",
 187                         .minimum = 0,
 188                         .maximum = 1,
 189                         .step    = 1,
 190                         .default_value = 1,
 191                 },
 192                 .set = sd_setagc
 193         },
 194 [AWB] = {
 195                 {
 196                         .id      = V4L2_CID_AUTO_WHITE_BALANCE,
 197                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 198                         .name    = "Auto White Balance",
 199                         .minimum = 0,
 200                         .maximum = 1,
 201                         .step    = 1,
 202                         .default_value = 1,
 203                 },
 204                 .set_control = setawb
 205         },
 206 [AEC] = {
 207                 {
 208                         .id      = V4L2_CID_EXPOSURE_AUTO,
 209                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 210                         .name    = "Auto Exposure",
 211                         .minimum = 0,
 212                         .maximum = 1,
 213                         .step    = 1,
 214                         .default_value = 1,
 215                 },
 216                 .set_control = setaec
 217         },
 218 [SHARPNESS] = {
 219                 {
 220                         .id      = V4L2_CID_SHARPNESS,
 221                         .type    = V4L2_CTRL_TYPE_INTEGER,
 222                         .name    = "Sharpness",
 223                         .minimum = 0,
 224                         .maximum = 63,
 225                         .step    = 1,
 226                         .default_value = 0,
 227                 },
 228                 .set_control = setsharpness
 229         },
 230 [HFLIP] = {
 231                 {
 232                         .id      = V4L2_CID_HFLIP,
 233                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 234                         .name    = "HFlip",
 235                         .minimum = 0,
 236                         .maximum = 1,
 237                         .step    = 1,
 238                         .default_value = 0,
 239                 },
 240                 .set_control = sethvflip
 241         },
 242 [VFLIP] = {
 243                 {
 244                         .id      = V4L2_CID_VFLIP,
 245                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 246                         .name    = "VFlip",
 247                         .minimum = 0,
 248                         .maximum = 1,
 249                         .step    = 1,
 250                         .default_value = 0,
 251                 },
 252                 .set_control = sethvflip
 253         },
 254 [LIGHTFREQ] = {
 255                 {
 256                         .id      = V4L2_CID_POWER_LINE_FREQUENCY,
 257                         .type    = V4L2_CTRL_TYPE_MENU,
 258                         .name    = "Light Frequency Filter",
 259                         .minimum = 0,
 260                         .maximum = 1,
 261                         .step    = 1,
 262                         .default_value = 0,
 263                 },
 264                 .set_control = setlightfreq
 265         },
 266 };
 267
 268 static const struct v4l2_pix_format ov772x_mode[] = {
 269         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 270          .bytesperline = 320 * 2,
 271          .sizeimage = 320 * 240 * 2,
 272          .colorspace = V4L2_COLORSPACE_SRGB,
 273          .priv = 1},
 274         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 275          .bytesperline = 640 * 2,
 276          .sizeimage = 640 * 480 * 2,
 277          .colorspace = V4L2_COLORSPACE_SRGB,
 278          .priv = 0},
 279 };
 280 static const struct v4l2_pix_format ov767x_mode[] = {
 281         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 282                 .bytesperline = 320,
 283                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 284                 .colorspace = V4L2_COLORSPACE_JPEG},
 285         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 286                 .bytesperline = 640,
 287                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 288                 .colorspace = V4L2_COLORSPACE_JPEG},
 289 };
 290
 291 static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30};
 292 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 293
 294 static const struct framerates ov772x_framerates[] = {
 295         { /* 320x240 */
 296                 .rates = qvga_rates,
 297                 .nrates = ARRAY_SIZE(qvga_rates),
 298         },
 299         { /* 640x480 */
 300                 .rates = vga_rates,
 301                 .nrates = ARRAY_SIZE(vga_rates),
 302         },
 303 };
 304
 305 struct reg_array {
 306         const u8 (*val)[2];
 307         int len;
 308 };
 309
 310 static const u8 bridge_init_767x[][2] = {
 311 /* comments from the ms-win file apollo7670.set */
 312 /* str1 */
 313         {0xf1, 0x42},
 314         {0x88, 0xf8},
 315         {0x89, 0xff},
 316         {0x76, 0x03},
 317         {0x92, 0x03},
 318         {0x95, 0x10},
 319         {0xe2, 0x00},
 320         {0xe7, 0x3e},
 321         {0x8d, 0x1c},
 322         {0x8e, 0x00},
 323         {0x8f, 0x00},
 324         {0x1f, 0x00},
 325         {0xc3, 0xf9},
 326         {0x89, 0xff},
 327         {0x88, 0xf8},
 328         {0x76, 0x03},
 329         {0x92, 0x01},
 330         {0x93, 0x18},
 331         {0x1c, 0x00},
 332         {0x1d, 0x48},
 333         {0x1d, 0x00},
 334         {0x1d, 0xff},
 335         {0x1d, 0x02},
 336         {0x1d, 0x58},
 337         {0x1d, 0x00},
 338         {0x1c, 0x0a},
 339         {0x1d, 0x0a},
 340         {0x1d, 0x0e},
 341         {0xc0, 0x50},   /* HSize 640 */
 342         {0xc1, 0x3c},   /* VSize 480 */
 343         {0x34, 0x05},   /* enable Audio Suspend mode */
 344         {0xc2, 0x0c},   /* Input YUV */
 345         {0xc3, 0xf9},   /* enable PRE */
 346         {0x34, 0x05},   /* enable Audio Suspend mode */
 347         {0xe7, 0x2e},   /* this solves failure of "SuspendResumeTest" */
 348         {0x31, 0xf9},   /* enable 1.8V Suspend */
 349         {0x35, 0x02},   /* turn on JPEG */
 350         {0xd9, 0x10},
 351         {0x25, 0x42},   /* GPIO[8]:Input */
 352         {0x94, 0x11},   /* If the default setting is loaded when
 353                          * system boots up, this flag is closed here */
 354 };
 355 static const u8 sensor_init_767x[][2] = {
 356         {0x12, 0x80},
 357         {0x11, 0x03},
 358         {0x3a, 0x04},
 359         {0x12, 0x00},
 360         {0x17, 0x13},
 361         {0x18, 0x01},
 362         {0x32, 0xb6},
 363         {0x19, 0x02},
 364         {0x1a, 0x7a},
 365         {0x03, 0x0a},
 366         {0x0c, 0x00},
 367         {0x3e, 0x00},
 368         {0x70, 0x3a},
 369         {0x71, 0x35},
 370         {0x72, 0x11},
 371         {0x73, 0xf0},
 372         {0xa2, 0x02},
 373         {0x7a, 0x2a},   /* set Gamma=1.6 below */
 374         {0x7b, 0x12},
 375         {0x7c, 0x1d},
 376         {0x7d, 0x2d},
 377         {0x7e, 0x45},
 378         {0x7f, 0x50},
 379         {0x80, 0x59},
 380         {0x81, 0x62},
 381         {0x82, 0x6b},
 382         {0x83, 0x73},
 383         {0x84, 0x7b},
 384         {0x85, 0x8a},
 385         {0x86, 0x98},
 386         {0x87, 0xb2},
 387         {0x88, 0xca},
 388         {0x89, 0xe0},
 389         {0x13, 0xe0},
 390         {0x00, 0x00},
 391         {0x10, 0x00},
 392         {0x0d, 0x40},
 393         {0x14, 0x38},   /* gain max 16x */
 394         {0xa5, 0x05},
 395         {0xab, 0x07},
 396         {0x24, 0x95},
 397         {0x25, 0x33},
 398         {0x26, 0xe3},
 399         {0x9f, 0x78},
 400         {0xa0, 0x68},
 401         {0xa1, 0x03},
 402         {0xa6, 0xd8},
 403         {0xa7, 0xd8},
 404         {0xa8, 0xf0},
 405         {0xa9, 0x90},
 406         {0xaa, 0x94},
 407         {0x13, 0xe5},
 408         {0x0e, 0x61},
 409         {0x0f, 0x4b},
 410         {0x16, 0x02},
 411         {0x21, 0x02},
 412         {0x22, 0x91},
 413         {0x29, 0x07},
 414         {0x33, 0x0b},
 415         {0x35, 0x0b},
 416         {0x37, 0x1d},
 417         {0x38, 0x71},
 418         {0x39, 0x2a},
 419         {0x3c, 0x78},
 420         {0x4d, 0x40},
 421         {0x4e, 0x20},
 422         {0x69, 0x00},
 423         {0x6b, 0x4a},
 424         {0x74, 0x10},
 425         {0x8d, 0x4f},
 426         {0x8e, 0x00},
 427         {0x8f, 0x00},
 428         {0x90, 0x00},
 429         {0x91, 0x00},
 430         {0x96, 0x00},
 431         {0x9a, 0x80},
 432         {0xb0, 0x84},
 433         {0xb1, 0x0c},
 434         {0xb2, 0x0e},
 435         {0xb3, 0x82},
 436         {0xb8, 0x0a},
 437         {0x43, 0x0a},
 438         {0x44, 0xf0},
 439         {0x45, 0x34},
 440         {0x46, 0x58},
 441         {0x47, 0x28},
 442         {0x48, 0x3a},
 443         {0x59, 0x88},
 444         {0x5a, 0x88},
 445         {0x5b, 0x44},
 446         {0x5c, 0x67},
 447         {0x5d, 0x49},
 448         {0x5e, 0x0e},
 449         {0x6c, 0x0a},
 450         {0x6d, 0x55},
 451         {0x6e, 0x11},
 452         {0x6f, 0x9f},
 453         {0x6a, 0x40},
 454         {0x01, 0x40},
 455         {0x02, 0x40},
 456         {0x13, 0xe7},
 457         {0x4f, 0x80},
 458         {0x50, 0x80},
 459         {0x51, 0x00},
 460         {0x52, 0x22},
 461         {0x53, 0x5e},
 462         {0x54, 0x80},
 463         {0x58, 0x9e},
 464         {0x41, 0x08},
 465         {0x3f, 0x00},
 466         {0x75, 0x04},
 467         {0x76, 0xe1},
 468         {0x4c, 0x00},
 469         {0x77, 0x01},
 470         {0x3d, 0xc2},
 471         {0x4b, 0x09},
 472         {0xc9, 0x60},
 473         {0x41, 0x38},   /* jfm: auto sharpness + auto de-noise  */
 474         {0x56, 0x40},
 475         {0x34, 0x11},
 476         {0x3b, 0xc2},
 477         {0xa4, 0x8a},   /* Night mode trigger point */
 478         {0x96, 0x00},
 479         {0x97, 0x30},
 480         {0x98, 0x20},
 481         {0x99, 0x20},
 482         {0x9a, 0x84},
 483         {0x9b, 0x29},
 484         {0x9c, 0x03},
 485         {0x9d, 0x4c},
 486         {0x9e, 0x3f},
 487         {0x78, 0x04},
 488         {0x79, 0x01},
 489         {0xc8, 0xf0},
 490         {0x79, 0x0f},
 491         {0xc8, 0x00},
 492         {0x79, 0x10},
 493         {0xc8, 0x7e},
 494         {0x79, 0x0a},
 495         {0xc8, 0x80},
 496         {0x79, 0x0b},
 497         {0xc8, 0x01},
 498         {0x79, 0x0c},
 499         {0xc8, 0x0f},
 500         {0x79, 0x0d},
 501         {0xc8, 0x20},
 502         {0x79, 0x09},
 503         {0xc8, 0x80},
 504         {0x79, 0x02},
 505         {0xc8, 0xc0},
 506         {0x79, 0x03},
 507         {0xc8, 0x20},
 508         {0x79, 0x26},
 509 };
 510 static const u8 bridge_start_vga_767x[][2] = {
 511 /* str59 JPG */
 512         {0x94, 0xaa},
 513         {0xf1, 0x42},
 514         {0xe5, 0x04},
 515         {0xc0, 0x50},
 516         {0xc1, 0x3c},
 517         {0xc2, 0x0c},
 518         {0x35, 0x02},   /* turn on JPEG */
 519         {0xd9, 0x10},
 520         {0xda, 0x00},   /* for higher clock rate(30fps) */
 521         {0x34, 0x05},   /* enable Audio Suspend mode */
 522         {0xc3, 0xf9},   /* enable PRE */
 523         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 524         {0x8d, 0x1c},   /* output YUV */
 525 /*      {0x34, 0x05},    * enable Audio Suspend mode (?) */
 526         {0x50, 0x00},   /* H/V divider=0 */
 527         {0x51, 0xa0},   /* input H=640/4 */
 528         {0x52, 0x3c},   /* input V=480/4 */
 529         {0x53, 0x00},   /* offset X=0 */
 530         {0x54, 0x00},   /* offset Y=0 */
 531         {0x55, 0x00},   /* H/V size[8]=0 */
 532         {0x57, 0x00},   /* H-size[9]=0 */
 533         {0x5c, 0x00},   /* output size[9:8]=0 */
 534         {0x5a, 0xa0},   /* output H=640/4 */
 535         {0x5b, 0x78},   /* output V=480/4 */
 536         {0x1c, 0x0a},
 537         {0x1d, 0x0a},
 538         {0x94, 0x11},
 539 };
 540 static const u8 sensor_start_vga_767x[][2] = {
 541         {0x11, 0x01},
 542         {0x1e, 0x04},
 543         {0x19, 0x02},
 544         {0x1a, 0x7a},
 545 };
 546 static const u8 bridge_start_qvga_767x[][2] = {
 547 /* str86 JPG */
 548         {0x94, 0xaa},
 549         {0xf1, 0x42},
 550         {0xe5, 0x04},
 551         {0xc0, 0x80},
 552         {0xc1, 0x60},
 553         {0xc2, 0x0c},
 554         {0x35, 0x02},   /* turn on JPEG */
 555         {0xd9, 0x10},
 556         {0xc0, 0x50},   /* CIF HSize 640 */
 557         {0xc1, 0x3c},   /* CIF VSize 480 */
 558         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 559         {0x8d, 0x1c},   /* output YUV */
 560         {0x34, 0x05},   /* enable Audio Suspend mode */
 561         {0xc2, 0x4c},   /* output YUV and Enable DCW */
 562         {0xc3, 0xf9},   /* enable PRE */
 563         {0x1c, 0x00},   /* indirect addressing */
 564         {0x1d, 0x48},   /* output YUV422 */
 565         {0x50, 0x89},   /* H/V divider=/2; plus DCW AVG */
 566         {0x51, 0xa0},   /* DCW input H=640/4 */
 567         {0x52, 0x78},   /* DCW input V=480/4 */
 568         {0x53, 0x00},   /* offset X=0 */
 569         {0x54, 0x00},   /* offset Y=0 */
 570         {0x55, 0x00},   /* H/V size[8]=0 */
 571         {0x57, 0x00},   /* H-size[9]=0 */
 572         {0x5c, 0x00},   /* DCW output size[9:8]=0 */
 573         {0x5a, 0x50},   /* DCW output H=320/4 */
 574         {0x5b, 0x3c},   /* DCW output V=240/4 */
 575         {0x1c, 0x0a},
 576         {0x1d, 0x0a},
 577         {0x94, 0x11},
 578 };
 579 static const u8 sensor_start_qvga_767x[][2] = {
 580         {0x11, 0x01},
 581         {0x1e, 0x04},
 582         {0x19, 0x02},
 583         {0x1a, 0x7a},
 584 };
 585
 586 static const u8 bridge_init_772x[][2] = {
 587         { 0xc2, 0x0c },
 588         { 0x88, 0xf8 },
 589         { 0xc3, 0x69 },
 590         { 0x89, 0xff },
 591         { 0x76, 0x03 },
 592         { 0x92, 0x01 },
 593         { 0x93, 0x18 },
 594         { 0x94, 0x10 },
 595         { 0x95, 0x10 },
 596         { 0xe2, 0x00 },
 597         { 0xe7, 0x3e },
 598
 599         { 0x96, 0x00 },
 600
 601         { 0x97, 0x20 },
 602         { 0x97, 0x20 },
 603         { 0x97, 0x20 },
 604         { 0x97, 0x0a },
 605         { 0x97, 0x3f },
 606         { 0x97, 0x4a },
 607         { 0x97, 0x20 },
 608         { 0x97, 0x15 },
 609         { 0x97, 0x0b },
 610
 611         { 0x8e, 0x40 },
 612         { 0x1f, 0x81 },
 613         { 0x34, 0x05 },
 614         { 0xe3, 0x04 },
 615         { 0x88, 0x00 },
 616         { 0x89, 0x00 },
 617         { 0x76, 0x00 },
 618         { 0xe7, 0x2e },
 619         { 0x31, 0xf9 },
 620         { 0x25, 0x42 },
 621         { 0x21, 0xf0 },
 622
 623         { 0x1c, 0x00 },
 624         { 0x1d, 0x40 },
 625         { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
 626         { 0x1d, 0x00 }, /* payload size */
 627
 628         { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
 629         { 0x1d, 0x58 }, /* frame size */
 630         { 0x1d, 0x00 }, /* frame size */
 631
 632         { 0x1c, 0x0a },
 633         { 0x1d, 0x08 }, /* turn on UVC header */
 634         { 0x1d, 0x0e }, /* .. */
 635
 636         { 0x8d, 0x1c },
 637         { 0x8e, 0x80 },
 638         { 0xe5, 0x04 },
 639
 640         { 0xc0, 0x50 },
 641         { 0xc1, 0x3c },
 642         { 0xc2, 0x0c },
 643 };
 644 static const u8 sensor_init_772x[][2] = {
 645         { 0x12, 0x80 },
 646         { 0x11, 0x01 },
 647 /*fixme: better have a delay?*/
 648         { 0x11, 0x01 },
 649         { 0x11, 0x01 },
 650         { 0x11, 0x01 },
 651         { 0x11, 0x01 },
 652         { 0x11, 0x01 },
 653         { 0x11, 0x01 },
 654         { 0x11, 0x01 },
 655         { 0x11, 0x01 },
 656         { 0x11, 0x01 },
 657         { 0x11, 0x01 },
 658
 659         { 0x3d, 0x03 },
 660         { 0x17, 0x26 },
 661         { 0x18, 0xa0 },
 662         { 0x19, 0x07 },
 663         { 0x1a, 0xf0 },
 664         { 0x32, 0x00 },
 665         { 0x29, 0xa0 },
 666         { 0x2c, 0xf0 },
 667         { 0x65, 0x20 },
 668         { 0x11, 0x01 },
 669         { 0x42, 0x7f },
 670         { 0x63, 0xaa },         /* AWB - was e0 */
 671         { 0x64, 0xff },
 672         { 0x66, 0x00 },
 673         { 0x13, 0xf0 },         /* com8 */
 674         { 0x0d, 0x41 },
 675         { 0x0f, 0xc5 },
 676         { 0x14, 0x11 },
 677
 678         { 0x22, 0x7f },
 679         { 0x23, 0x03 },
 680         { 0x24, 0x40 },
 681         { 0x25, 0x30 },
 682         { 0x26, 0xa1 },
 683         { 0x2a, 0x00 },
 684         { 0x2b, 0x00 },
 685         { 0x6b, 0xaa },
 686         { 0x13, 0xff },         /* AWB */
 687
 688         { 0x90, 0x05 },
 689         { 0x91, 0x01 },
 690         { 0x92, 0x03 },
 691         { 0x93, 0x00 },
 692         { 0x94, 0x60 },
 693         { 0x95, 0x3c },
 694         { 0x96, 0x24 },
 695         { 0x97, 0x1e },
 696         { 0x98, 0x62 },
 697         { 0x99, 0x80 },
 698         { 0x9a, 0x1e },
 699         { 0x9b, 0x08 },
 700         { 0x9c, 0x20 },
 701         { 0x9e, 0x81 },
 702
 703         { 0xa6, 0x07 },
 704         { 0x7e, 0x0c },
 705         { 0x7f, 0x16 },
 706         { 0x80, 0x2a },
 707         { 0x81, 0x4e },
 708         { 0x82, 0x61 },
 709         { 0x83, 0x6f },
 710         { 0x84, 0x7b },
 711         { 0x85, 0x86 },
 712         { 0x86, 0x8e },
 713         { 0x87, 0x97 },
 714         { 0x88, 0xa4 },
 715         { 0x89, 0xaf },
 716         { 0x8a, 0xc5 },
 717         { 0x8b, 0xd7 },
 718         { 0x8c, 0xe8 },
 719         { 0x8d, 0x20 },
 720
 721         { 0x0c, 0x90 },
 722
 723         { 0x2b, 0x00 },
 724         { 0x22, 0x7f },
 725         { 0x23, 0x03 },
 726         { 0x11, 0x01 },
 727         { 0x0c, 0xd0 },
 728         { 0x64, 0xff },
 729         { 0x0d, 0x41 },
 730
 731         { 0x14, 0x41 },
 732         { 0x0e, 0xcd },
 733         { 0xac, 0xbf },
 734         { 0x8e, 0x00 },         /* De-noise threshold */
 735         { 0x0c, 0xd0 }
 736 };
 737 static const u8 bridge_start_vga_772x[][2] = {
 738         {0x1c, 0x00},
 739         {0x1d, 0x40},
 740         {0x1d, 0x02},
 741         {0x1d, 0x00},
 742         {0x1d, 0x02},
 743         {0x1d, 0x58},
 744         {0x1d, 0x00},
 745         {0xc0, 0x50},
 746         {0xc1, 0x3c},
 747 };
 748 static const u8 sensor_start_vga_772x[][2] = {
 749         {0x12, 0x00},
 750         {0x17, 0x26},
 751         {0x18, 0xa0},
 752         {0x19, 0x07},
 753         {0x1a, 0xf0},
 754         {0x29, 0xa0},
 755         {0x2c, 0xf0},
 756         {0x65, 0x20},
 757 };
 758 static const u8 bridge_start_qvga_772x[][2] = {
 759         {0x1c, 0x00},
 760         {0x1d, 0x40},
 761         {0x1d, 0x02},
 762         {0x1d, 0x00},
 763         {0x1d, 0x01},
 764         {0x1d, 0x4b},
 765         {0x1d, 0x00},
 766         {0xc0, 0x28},
 767         {0xc1, 0x1e},
 768 };
 769 static const u8 sensor_start_qvga_772x[][2] = {
 770         {0x12, 0x40},
 771         {0x17, 0x3f},
 772         {0x18, 0x50},
 773         {0x19, 0x03},
 774         {0x1a, 0x78},
 775         {0x29, 0x50},
 776         {0x2c, 0x78},
 777         {0x65, 0x2f},
 778 };
 779
 780 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 781 {
 782         struct usb_device *udev = gspca_dev->dev;
 783         int ret;
 784
 785         if (gspca_dev->usb_err < 0)
 786                 return;
 787
 788         PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
 789         gspca_dev->usb_buf[0] = val;
 790         ret = usb_control_msg(udev,
 791                               usb_sndctrlpipe(udev, 0),
 792                               0x01,
 793                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 794                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 795         if (ret < 0) {
 796                 pr_err("write failed %d\n", ret);
 797                 gspca_dev->usb_err = ret;
 798         }
 799 }
 800
 801 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 802 {
 803         struct usb_device *udev = gspca_dev->dev;
 804         int ret;
 805
 806         if (gspca_dev->usb_err < 0)
 807                 return 0;
 808         ret = usb_control_msg(udev,
 809                               usb_rcvctrlpipe(udev, 0),
 810                               0x01,
 811                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 812                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 813         PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
 814         if (ret < 0) {
 815                 pr_err("read failed %d\n", ret);
 816                 gspca_dev->usb_err = ret;
 817         }
 818         return gspca_dev->usb_buf[0];
 819 }
 820
 821 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 822  * (direction and output)? */
 823 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 824 {
 825         u8 data;
 826
 827         PDEBUG(D_CONF, "led status: %d", status);
 828
 829         data = ov534_reg_read(gspca_dev, 0x21);
 830         data |= 0x80;
 831         ov534_reg_write(gspca_dev, 0x21, data);
 832
 833         data = ov534_reg_read(gspca_dev, 0x23);
 834         if (status)
 835                 data |= 0x80;
 836         else
 837                 data &= ~0x80;
 838
 839         ov534_reg_write(gspca_dev, 0x23, data);
 840
 841         if (!status) {
 842                 data = ov534_reg_read(gspca_dev, 0x21);
 843                 data &= ~0x80;
 844                 ov534_reg_write(gspca_dev, 0x21, data);
 845         }
 846 }
 847
 848 static int sccb_check_status(struct gspca_dev *gspca_dev)
 849 {
 850         u8 data;
 851         int i;
 852
 853         for (i = 0; i < 5; i++) {
 854                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 855
 856                 switch (data) {
 857                 case 0x00:
 858                         return 1;
 859                 case 0x04:
 860                         return 0;
 861                 case 0x03:
 862                         break;
 863                 default:
 864                         PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
 865                                data, i + 1);
 866                 }
 867         }
 868         return 0;
 869 }
 870
 871 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 872 {
 873         PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
 874         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 875         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 876         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 877
 878         if (!sccb_check_status(gspca_dev)) {
 879                 pr_err("sccb_reg_write failed\n");
 880                 gspca_dev->usb_err = -EIO;
 881         }
 882 }
 883
 884 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 885 {
 886         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 887         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 888         if (!sccb_check_status(gspca_dev))
 889                 pr_err("sccb_reg_read failed 1\n");
 890
 891         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 892         if (!sccb_check_status(gspca_dev))
 893                 pr_err("sccb_reg_read failed 2\n");
 894
 895         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 896 }
 897
 898 /* output a bridge sequence (reg - val) */
 899 static void reg_w_array(struct gspca_dev *gspca_dev,
 900                         const u8 (*data)[2], int len)
 901 {
 902         while (--len >= 0) {
 903                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 904                 data++;
 905         }
 906 }
 907
 908 /* output a sensor sequence (reg - val) */
 909 static void sccb_w_array(struct gspca_dev *gspca_dev,
 910                         const u8 (*data)[2], int len)
 911 {
 912         while (--len >= 0) {
 913                 if ((*data)[0] != 0xff) {
 914                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 915                 } else {
 916                         sccb_reg_read(gspca_dev, (*data)[1]);
 917                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 918                 }
 919                 data++;
 920         }
 921 }
 922
 923 /* ov772x specific controls */
 924 static void set_frame_rate(struct gspca_dev *gspca_dev)
 925 {
 926         struct sd *sd = (struct sd *) gspca_dev;
 927         int i;
 928         struct rate_s {
 929                 u8 fps;
 930                 u8 r11;
 931                 u8 r0d;
 932                 u8 re5;
 933         };
 934         const struct rate_s *r;
 935         static const struct rate_s rate_0[] = { /* 640x480 */
 936                 {60, 0x01, 0xc1, 0x04},
 937                 {50, 0x01, 0x41, 0x02},
 938                 {40, 0x02, 0xc1, 0x04},
 939                 {30, 0x04, 0x81, 0x02},
 940                 {15, 0x03, 0x41, 0x04},
 941         };
 942         static const struct rate_s rate_1[] = { /* 320x240 */
 943                 {125, 0x02, 0x81, 0x02},
 944                 {100, 0x02, 0xc1, 0x04},
 945                 {75, 0x03, 0xc1, 0x04},
 946                 {60, 0x04, 0xc1, 0x04},
 947                 {50, 0x02, 0x41, 0x04},
 948                 {40, 0x03, 0x41, 0x04},
 949                 {30, 0x04, 0x41, 0x04},
 950         };
 951
 952         if (sd->sensor != SENSOR_OV772x)
 953                 return;
 954         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 955                 r = rate_0;
 956                 i = ARRAY_SIZE(rate_0);
 957         } else {
 958                 r = rate_1;
 959                 i = ARRAY_SIZE(rate_1);
 960         }
 961         while (--i > 0) {
 962                 if (sd->frame_rate >= r->fps)
 963                         break;
 964                 r++;
 965         }
 966
 967         sccb_reg_write(gspca_dev, 0x11, r->r11);
 968         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 969         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 970
 971         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 972 }
 973
 974 static void sethue(struct gspca_dev *gspca_dev)
 975 {
 976         struct sd *sd = (struct sd *) gspca_dev;
 977         int val;
 978
 979         val = sd->ctrls[HUE].val;
 980         if (sd->sensor == SENSOR_OV767x) {
 981                 /* TBD */
 982         } else {
 983                 s16 huesin;
 984                 s16 huecos;
 985
 986                 /* fixp_sin and fixp_cos accept only positive values, while
 987                  * our val is between -90 and 90
 988                  */
 989                 val += 360;
 990
 991                 /* According to the datasheet the registers expect HUESIN and
 992                  * HUECOS to be the result of the trigonometric functions,
 993                  * scaled by 0x80.
 994                  *
 995                  * The 0x100 here represents the maximun absolute value
 996                  * returned byt fixp_sin and fixp_cos, so the scaling will
 997                  * consider the result like in the interval [-1.0, 1.0].
 998                  */
 999                 huesin = fixp_sin(val) * 0x80 / 0x100;
1000                 huecos = fixp_cos(val) * 0x80 / 0x100;
1001
1002                 if (huesin < 0) {
1003                         sccb_reg_write(gspca_dev, 0xab,
1004                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
1005                         huesin = -huesin;
1006                 } else {
1007                         sccb_reg_write(gspca_dev, 0xab,
1008                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
1009
1010                 }
1011                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
1012                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
1013         }
1014 }
1015
1016 static void setsaturation(struct gspca_dev *gspca_dev)
1017 {
1018         struct sd *sd = (struct sd *) gspca_dev;
1019         int val;
1020
1021         val = sd->ctrls[SATURATION].val;
1022         if (sd->sensor == SENSOR_OV767x) {
1023                 int i;
1024                 static u8 color_tb[][6] = {
1025                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
1026                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
1027                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
1028                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
1029                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
1030                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
1031                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
1032                 };
1033
1034                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
1035                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
1036         } else {
1037                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
1038                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
1039         }
1040 }
1041
1042 static void setbrightness(struct gspca_dev *gspca_dev)
1043 {
1044         struct sd *sd = (struct sd *) gspca_dev;
1045         int val;
1046
1047         val = sd->ctrls[BRIGHTNESS].val;
1048         if (sd->sensor == SENSOR_OV767x) {
1049                 if (val < 0)
1050                         val = 0x80 - val;
1051                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
1052         } else {
1053                 sccb_reg_write(gspca_dev, 0x9b, val);
1054         }
1055 }
1056
1057 static void setcontrast(struct gspca_dev *gspca_dev)
1058 {
1059         struct sd *sd = (struct sd *) gspca_dev;
1060         u8 val;
1061
1062         val = sd->ctrls[CONTRAST].val;
1063         if (sd->sensor == SENSOR_OV767x)
1064                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
1065         else
1066                 sccb_reg_write(gspca_dev, 0x9c, val);
1067 }
1068
1069 static void setgain(struct gspca_dev *gspca_dev)
1070 {
1071         struct sd *sd = (struct sd *) gspca_dev;
1072         u8 val;
1073
1074         if (sd->ctrls[AGC].val)
1075                 return;
1076
1077         val = sd->ctrls[GAIN].val;
1078         switch (val & 0x30) {
1079         case 0x00:
1080                 val &= 0x0f;
1081                 break;
1082         case 0x10:
1083                 val &= 0x0f;
1084                 val |= 0x30;
1085                 break;
1086         case 0x20:
1087                 val &= 0x0f;
1088                 val |= 0x70;
1089                 break;
1090         default:
1091 /*      case 0x30: */
1092                 val &= 0x0f;
1093                 val |= 0xf0;
1094                 break;
1095         }
1096         sccb_reg_write(gspca_dev, 0x00, val);
1097 }
1098
1099 static void setexposure(struct gspca_dev *gspca_dev)
1100 {
1101         struct sd *sd = (struct sd *) gspca_dev;
1102         u8 val;
1103
1104         if (sd->ctrls[AEC].val)
1105                 return;
1106
1107         val = sd->ctrls[EXPOSURE].val;
1108         if (sd->sensor == SENSOR_OV767x) {
1109
1110                 /* set only aec[9:2] */
1111                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
1112         } else {
1113
1114                 /* 'val' is one byte and represents half of the exposure value
1115                  * we are going to set into registers, a two bytes value:
1116                  *
1117                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
1118                  *    LSB: ((u16) val << 1) & 0xff == val << 1
1119                  */
1120                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
1121                 sccb_reg_write(gspca_dev, 0x10, val << 1);
1122         }
1123 }
1124
1125 static void setagc(struct gspca_dev *gspca_dev)
1126 {
1127         struct sd *sd = (struct sd *) gspca_dev;
1128
1129         if (sd->ctrls[AGC].val) {
1130                 sccb_reg_write(gspca_dev, 0x13,
1131                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
1132                 sccb_reg_write(gspca_dev, 0x64,
1133                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
1134         } else {
1135                 sccb_reg_write(gspca_dev, 0x13,
1136                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
1137                 sccb_reg_write(gspca_dev, 0x64,
1138                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
1139
1140                 setgain(gspca_dev);
1141         }
1142 }
1143
1144 static void setawb(struct gspca_dev *gspca_dev)
1145 {
1146         struct sd *sd = (struct sd *) gspca_dev;
1147
1148         if (sd->ctrls[AWB].val) {
1149                 sccb_reg_write(gspca_dev, 0x13,
1150                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
1151                 if (sd->sensor == SENSOR_OV772x)
1152                         sccb_reg_write(gspca_dev, 0x63,
1153                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
1154         } else {
1155                 sccb_reg_write(gspca_dev, 0x13,
1156                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
1157                 if (sd->sensor == SENSOR_OV772x)
1158                         sccb_reg_write(gspca_dev, 0x63,
1159                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
1160         }
1161 }
1162
1163 static void setaec(struct gspca_dev *gspca_dev)
1164 {
1165         struct sd *sd = (struct sd *) gspca_dev;
1166         u8 data;
1167
1168         data = sd->sensor == SENSOR_OV767x ?
1169                         0x05 :          /* agc + aec */
1170                         0x01;           /* agc */
1171         if (sd->ctrls[AEC].val)
1172                 sccb_reg_write(gspca_dev, 0x13,
1173                                 sccb_reg_read(gspca_dev, 0x13) | data);
1174         else {
1175                 sccb_reg_write(gspca_dev, 0x13,
1176                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1177                 if (sd->sensor == SENSOR_OV767x)
1178                         sd->ctrls[EXPOSURE].val =
1179                                 sccb_reg_read(gspca_dev, 10);   /* aech */
1180                 else
1181                         setexposure(gspca_dev);
1182         }
1183 }
1184
1185 static void setsharpness(struct gspca_dev *gspca_dev)
1186 {
1187         struct sd *sd = (struct sd *) gspca_dev;
1188         u8 val;
1189
1190         val = sd->ctrls[SHARPNESS].val;
1191         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1192         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1193 }
1194
1195 static void sethvflip(struct gspca_dev *gspca_dev)
1196 {
1197         struct sd *sd = (struct sd *) gspca_dev;
1198         u8 val;
1199
1200         if (sd->sensor == SENSOR_OV767x) {
1201                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1202                 val &= ~0x30;
1203                 if (sd->ctrls[HFLIP].val)
1204                         val |= 0x20;
1205                 if (sd->ctrls[VFLIP].val)
1206                         val |= 0x10;
1207                 sccb_reg_write(gspca_dev, 0x1e, val);
1208         } else {
1209                 val = sccb_reg_read(gspca_dev, 0x0c);
1210                 val &= ~0xc0;
1211                 if (sd->ctrls[HFLIP].val == 0)
1212                         val |= 0x40;
1213                 if (sd->ctrls[VFLIP].val == 0)
1214                         val |= 0x80;
1215                 sccb_reg_write(gspca_dev, 0x0c, val);
1216         }
1217 }
1218
1219 static void setlightfreq(struct gspca_dev *gspca_dev)
1220 {
1221         struct sd *sd = (struct sd *) gspca_dev;
1222         u8 val;
1223
1224         val = sd->ctrls[LIGHTFREQ].val ? 0x9e : 0x00;
1225         if (sd->sensor == SENSOR_OV767x) {
1226                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1227                 if (val)
1228                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1229         }
1230         sccb_reg_write(gspca_dev, 0x2b, val);
1231 }
1232
1233
1234 /* this function is called at probe time */
1235 static int sd_config(struct gspca_dev *gspca_dev,
1236                      const struct usb_device_id *id)
1237 {
1238         struct sd *sd = (struct sd *) gspca_dev;
1239         struct cam *cam;
1240
1241         cam = &gspca_dev->cam;
1242
1243         cam->ctrls = sd->ctrls;
1244
1245         /* the auto white balance control works only when auto gain is set */
1246         if (sd_ctrls[AGC].qctrl.default_value == 0)
1247                 gspca_dev->ctrl_inac |= (1 << AWB);
1248
1249         cam->cam_mode = ov772x_mode;
1250         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1251
1252         sd->frame_rate = 30;
1253
1254         return 0;
1255 }
1256
1257 /* this function is called at probe and resume time */
1258 static int sd_init(struct gspca_dev *gspca_dev)
1259 {
1260         struct sd *sd = (struct sd *) gspca_dev;
1261         u16 sensor_id;
1262         static const struct reg_array bridge_init[NSENSORS] = {
1263         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1264         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1265         };
1266         static const struct reg_array sensor_init[NSENSORS] = {
1267         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1268         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1269         };
1270
1271         /* reset bridge */
1272         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1273         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1274         msleep(100);
1275
1276         /* initialize the sensor address */
1277         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1278
1279         /* reset sensor */
1280         sccb_reg_write(gspca_dev, 0x12, 0x80);
1281         msleep(10);
1282
1283         /* probe the sensor */
1284         sccb_reg_read(gspca_dev, 0x0a);
1285         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1286         sccb_reg_read(gspca_dev, 0x0b);
1287         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1288         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1289
1290         if ((sensor_id & 0xfff0) == 0x7670) {
1291                 sd->sensor = SENSOR_OV767x;
1292                 gspca_dev->ctrl_dis = (1 << HUE) |
1293                                         (1 << GAIN) |
1294                                         (1 << AGC) |
1295                                         (1 << SHARPNESS);       /* auto */
1296                 sd->ctrls[SATURATION].min = 0,
1297                 sd->ctrls[SATURATION].max = 6,
1298                 sd->ctrls[SATURATION].def = 3,
1299                 sd->ctrls[BRIGHTNESS].min = -127;
1300                 sd->ctrls[BRIGHTNESS].max = 127;
1301                 sd->ctrls[BRIGHTNESS].def = 0;
1302                 sd->ctrls[CONTRAST].max = 0x80;
1303                 sd->ctrls[CONTRAST].def = 0x40;
1304                 sd->ctrls[EXPOSURE].min = 0x08;
1305                 sd->ctrls[EXPOSURE].max = 0x60;
1306                 sd->ctrls[EXPOSURE].def = 0x13;
1307                 sd->ctrls[SHARPNESS].max = 9;
1308                 sd->ctrls[SHARPNESS].def = 4;
1309                 sd->ctrls[HFLIP].def = 1;
1310                 gspca_dev->cam.cam_mode = ov767x_mode;
1311                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1312         } else {
1313                 sd->sensor = SENSOR_OV772x;
1314                 gspca_dev->cam.bulk = 1;
1315                 gspca_dev->cam.bulk_size = 16384;
1316                 gspca_dev->cam.bulk_nurbs = 2;
1317                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1318         }
1319
1320         /* initialize */
1321         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1322                         bridge_init[sd->sensor].len);
1323         ov534_set_led(gspca_dev, 1);
1324         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1325                         sensor_init[sd->sensor].len);
1326         if (sd->sensor == SENSOR_OV767x)
1327                 sd_start(gspca_dev);
1328         sd_stopN(gspca_dev);
1329 /*      set_frame_rate(gspca_dev);      */
1330
1331         return gspca_dev->usb_err;
1332 }
1333
1334 static int sd_start(struct gspca_dev *gspca_dev)
1335 {
1336         struct sd *sd = (struct sd *) gspca_dev;
1337         int mode;
1338         static const struct reg_array bridge_start[NSENSORS][2] = {
1339         [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1340                                         ARRAY_SIZE(bridge_start_qvga_767x)},
1341                         {bridge_start_vga_767x,
1342                                         ARRAY_SIZE(bridge_start_vga_767x)}},
1343         [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1344                                         ARRAY_SIZE(bridge_start_qvga_772x)},
1345                         {bridge_start_vga_772x,
1346                                         ARRAY_SIZE(bridge_start_vga_772x)}},
1347         };
1348         static const struct reg_array sensor_start[NSENSORS][2] = {
1349         [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1350                                         ARRAY_SIZE(sensor_start_qvga_767x)},
1351                         {sensor_start_vga_767x,
1352                                         ARRAY_SIZE(sensor_start_vga_767x)}},
1353         [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1354                                         ARRAY_SIZE(sensor_start_qvga_772x)},
1355                         {sensor_start_vga_772x,
1356                                         ARRAY_SIZE(sensor_start_vga_772x)}},
1357         };
1358
1359         /* (from ms-win trace) */
1360         if (sd->sensor == SENSOR_OV767x)
1361                 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1362                                         /* black sun enable ? */
1363
1364         mode = gspca_dev->curr_mode;    /* 0: 320x240, 1: 640x480 */
1365         reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1366                                 bridge_start[sd->sensor][mode].len);
1367         sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1368                                 sensor_start[sd->sensor][mode].len);
1369
1370         set_frame_rate(gspca_dev);
1371
1372         if (!(gspca_dev->ctrl_dis & (1 << HUE)))
1373                 sethue(gspca_dev);
1374         setsaturation(gspca_dev);
1375         if (!(gspca_dev->ctrl_dis & (1 << AGC)))
1376                 setagc(gspca_dev);
1377         setawb(gspca_dev);
1378         setaec(gspca_dev);
1379         if (!(gspca_dev->ctrl_dis & (1 << GAIN)))
1380                 setgain(gspca_dev);
1381         setexposure(gspca_dev);
1382         setbrightness(gspca_dev);
1383         setcontrast(gspca_dev);
1384         if (!(gspca_dev->ctrl_dis & (1 << SHARPNESS)))
1385                 setsharpness(gspca_dev);
1386         sethvflip(gspca_dev);
1387         setlightfreq(gspca_dev);
1388
1389         ov534_set_led(gspca_dev, 1);
1390         ov534_reg_write(gspca_dev, 0xe0, 0x00);
1391         return gspca_dev->usb_err;
1392 }
1393
1394 static void sd_stopN(struct gspca_dev *gspca_dev)
1395 {
1396         ov534_reg_write(gspca_dev, 0xe0, 0x09);
1397         ov534_set_led(gspca_dev, 0);
1398 }
1399
1400 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1401 #define UVC_STREAM_EOH  (1 << 7)
1402 #define UVC_STREAM_ERR  (1 << 6)
1403 #define UVC_STREAM_STI  (1 << 5)
1404 #define UVC_STREAM_RES  (1 << 4)
1405 #define UVC_STREAM_SCR  (1 << 3)
1406 #define UVC_STREAM_PTS  (1 << 2)
1407 #define UVC_STREAM_EOF  (1 << 1)
1408 #define UVC_STREAM_FID  (1 << 0)
1409
1410 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1411                         u8 *data, int len)
1412 {
1413         struct sd *sd = (struct sd *) gspca_dev;
1414         __u32 this_pts;
1415         u16 this_fid;
1416         int remaining_len = len;
1417         int payload_len;
1418
1419         payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1420         do {
1421                 len = min(remaining_len, payload_len);
1422
1423                 /* Payloads are prefixed with a UVC-style header.  We
1424                    consider a frame to start when the FID toggles, or the PTS
1425                    changes.  A frame ends when EOF is set, and we've received
1426                    the correct number of bytes. */
1427
1428                 /* Verify UVC header.  Header length is always 12 */
1429                 if (data[0] != 12 || len < 12) {
1430                         PDEBUG(D_PACK, "bad header");
1431                         goto discard;
1432                 }
1433
1434                 /* Check errors */
1435                 if (data[1] & UVC_STREAM_ERR) {
1436                         PDEBUG(D_PACK, "payload error");
1437                         goto discard;
1438                 }
1439
1440                 /* Extract PTS and FID */
1441                 if (!(data[1] & UVC_STREAM_PTS)) {
1442                         PDEBUG(D_PACK, "PTS not present");
1443                         goto discard;
1444                 }
1445                 this_pts = (data[5] << 24) | (data[4] << 16)
1446                                                 | (data[3] << 8) | data[2];
1447                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1448
1449                 /* If PTS or FID has changed, start a new frame. */
1450                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1451                         if (gspca_dev->last_packet_type == INTER_PACKET)
1452                                 gspca_frame_add(gspca_dev, LAST_PACKET,
1453                                                 NULL, 0);
1454                         sd->last_pts = this_pts;
1455                         sd->last_fid = this_fid;
1456                         gspca_frame_add(gspca_dev, FIRST_PACKET,
1457                                         data + 12, len - 12);
1458                 /* If this packet is marked as EOF, end the frame */
1459                 } else if (data[1] & UVC_STREAM_EOF) {
1460                         sd->last_pts = 0;
1461                         if (gspca_dev->pixfmt == V4L2_PIX_FMT_YUYV
1462                          && gspca_dev->image_len + len - 12 !=
1463                                    gspca_dev->width * gspca_dev->height * 2) {
1464                                 PDEBUG(D_PACK, "wrong sized frame");
1465                                 goto discard;
1466                         }
1467                         gspca_frame_add(gspca_dev, LAST_PACKET,
1468                                         data + 12, len - 12);
1469                 } else {
1470
1471                         /* Add the data from this payload */
1472                         gspca_frame_add(gspca_dev, INTER_PACKET,
1473                                         data + 12, len - 12);
1474                 }
1475
1476                 /* Done this payload */
1477                 goto scan_next;
1478
1479 discard:
1480                 /* Discard data until a new frame starts. */
1481                 gspca_dev->last_packet_type = DISCARD_PACKET;
1482
1483 scan_next:
1484                 remaining_len -= len;
1485                 data += len;
1486         } while (remaining_len > 0);
1487 }
1488
1489 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val)
1490 {
1491         struct sd *sd = (struct sd *) gspca_dev;
1492
1493         sd->ctrls[AGC].val = val;
1494
1495         /* the auto white balance control works only
1496          * when auto gain is set */
1497         if (val) {
1498                 gspca_dev->ctrl_inac &= ~(1 << AWB);
1499         } else {
1500                 gspca_dev->ctrl_inac |= (1 << AWB);
1501                 if (sd->ctrls[AWB].val) {
1502                         sd->ctrls[AWB].val = 0;
1503                         if (gspca_dev->streaming)
1504                                 setawb(gspca_dev);
1505                 }
1506         }
1507         if (gspca_dev->streaming)
1508                 setagc(gspca_dev);
1509         return gspca_dev->usb_err;
1510 }
1511
1512 static int sd_querymenu(struct gspca_dev *gspca_dev,
1513                 struct v4l2_querymenu *menu)
1514 {
1515         switch (menu->id) {
1516         case V4L2_CID_POWER_LINE_FREQUENCY:
1517                 switch (menu->index) {
1518                 case 0:         /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
1519                         strcpy((char *) menu->name, "Disabled");
1520                         return 0;
1521                 case 1:         /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
1522                         strcpy((char *) menu->name, "50 Hz");
1523                         return 0;
1524                 }
1525                 break;
1526         }
1527
1528         return -EINVAL;
1529 }
1530
1531 /* get stream parameters (framerate) */
1532 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1533                              struct v4l2_streamparm *parm)
1534 {
1535         struct v4l2_captureparm *cp = &parm->parm.capture;
1536         struct v4l2_fract *tpf = &cp->timeperframe;
1537         struct sd *sd = (struct sd *) gspca_dev;
1538
1539         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1540         tpf->numerator = 1;
1541         tpf->denominator = sd->frame_rate;
1542 }
1543
1544 /* set stream parameters (framerate) */
1545 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1546                              struct v4l2_streamparm *parm)
1547 {
1548         struct v4l2_captureparm *cp = &parm->parm.capture;
1549         struct v4l2_fract *tpf = &cp->timeperframe;
1550         struct sd *sd = (struct sd *) gspca_dev;
1551
1552         /* Set requested framerate */
1553         sd->frame_rate = tpf->denominator / tpf->numerator;
1554         if (gspca_dev->streaming)
1555                 set_frame_rate(gspca_dev);
1556
1557         /* Return the actual framerate */
1558         tpf->numerator = 1;
1559         tpf->denominator = sd->frame_rate;
1560 }
1561
1562 /* sub-driver description */
1563 static const struct sd_desc sd_desc = {
1564         .name     = MODULE_NAME,
1565         .ctrls    = sd_ctrls,
1566         .nctrls   = ARRAY_SIZE(sd_ctrls),
1567         .config   = sd_config,
1568         .init     = sd_init,
1569         .start    = sd_start,
1570         .stopN    = sd_stopN,
1571         .pkt_scan = sd_pkt_scan,
1572         .querymenu = sd_querymenu,
1573         .get_streamparm = sd_get_streamparm,
1574         .set_streamparm = sd_set_streamparm,
1575 };
1576
1577 /* -- module initialisation -- */
1578 static const struct usb_device_id device_table[] = {
1579         {USB_DEVICE(0x1415, 0x2000)},
1580         {USB_DEVICE(0x06f8, 0x3002)},
1581         {}
1582 };
1583
1584 MODULE_DEVICE_TABLE(usb, device_table);
1585
1586 /* -- device connect -- */
1587 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1588 {
1589         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1590                                 THIS_MODULE);
1591 }
1592
1593 static struct usb_driver sd_driver = {
1594         .name       = MODULE_NAME,
1595         .id_table   = device_table,
1596         .probe      = sd_probe,
1597         .disconnect = gspca_disconnect,
1598 #ifdef CONFIG_PM
1599         .suspend    = gspca_suspend,
1600         .resume     = gspca_resume,
1601 #endif
1602 };
1603
1604 module_usb_driver(sd_driver);