drivers/media/usb/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  * PS3 Eye camera - FPS range extended by Joseph Howse
  16  *                  <josephhowse@nummist.com> http://nummist.com
  17  *
  18  * This program is free software; you can redistribute it and/or modify
  19  * it under the terms of the GNU General Public License as published by
  20  * the Free Software Foundation; either version 2 of the License, or
  21  * any later version.
  22  *
  23  * This program is distributed in the hope that it will be useful,
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  26  * GNU General Public License for more details.
  27  */
  28
  29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  30
  31 #define MODULE_NAME "ov534"
  32
  33 #include "gspca.h"
  34
  35 #include <linux/fixp-arith.h>
  36 #include <media/v4l2-ctrls.h>
  37
  38 #define OV534_REG_ADDRESS       0xf1    /* sensor address */
  39 #define OV534_REG_SUBADDR       0xf2
  40 #define OV534_REG_WRITE         0xf3
  41 #define OV534_REG_READ          0xf4
  42 #define OV534_REG_OPERATION     0xf5
  43 #define OV534_REG_STATUS        0xf6
  44
  45 #define OV534_OP_WRITE_3        0x37
  46 #define OV534_OP_WRITE_2        0x33
  47 #define OV534_OP_READ_2         0xf9
  48
  49 #define CTRL_TIMEOUT 500
  50 #define DEFAULT_FRAME_RATE 30
  51
  52 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
  53 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
  54 MODULE_LICENSE("GPL");
  55
  56 /* specific webcam descriptor */
  57 struct sd {
  58         struct gspca_dev gspca_dev;     /* !! must be the first item */
  59
  60         struct v4l2_ctrl_handler ctrl_handler;
  61         struct v4l2_ctrl *hue;
  62         struct v4l2_ctrl *saturation;
  63         struct v4l2_ctrl *brightness;
  64         struct v4l2_ctrl *contrast;
  65         struct { /* gain control cluster */
  66                 struct v4l2_ctrl *autogain;
  67                 struct v4l2_ctrl *gain;
  68         };
  69         struct v4l2_ctrl *autowhitebalance;
  70         struct { /* exposure control cluster */
  71                 struct v4l2_ctrl *autoexposure;
  72                 struct v4l2_ctrl *exposure;
  73         };
  74         struct v4l2_ctrl *sharpness;
  75         struct v4l2_ctrl *hflip;
  76         struct v4l2_ctrl *vflip;
  77         struct v4l2_ctrl *plfreq;
  78
  79         __u32 last_pts;
  80         u16 last_fid;
  81         u8 frame_rate;
  82
  83         u8 sensor;
  84 };
  85 enum sensors {
  86         SENSOR_OV767x,
  87         SENSOR_OV772x,
  88         NSENSORS
  89 };
  90
  91 static int sd_start(struct gspca_dev *gspca_dev);
  92 static void sd_stopN(struct gspca_dev *gspca_dev);
  93
  94
  95 static const struct v4l2_pix_format ov772x_mode[] = {
  96         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
  97          .bytesperline = 320 * 2,
  98          .sizeimage = 320 * 240 * 2,
  99          .colorspace = V4L2_COLORSPACE_SRGB,
 100          .priv = 1},
 101         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 102          .bytesperline = 640 * 2,
 103          .sizeimage = 640 * 480 * 2,
 104          .colorspace = V4L2_COLORSPACE_SRGB,
 105          .priv = 0},
 106 };
 107 static const struct v4l2_pix_format ov767x_mode[] = {
 108         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 109                 .bytesperline = 320,
 110                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 111                 .colorspace = V4L2_COLORSPACE_JPEG},
 112         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 113                 .bytesperline = 640,
 114                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 115                 .colorspace = V4L2_COLORSPACE_JPEG},
 116 };
 117
 118 static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30};
 119 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 120
 121 static const struct framerates ov772x_framerates[] = {
 122         { /* 320x240 */
 123                 .rates = qvga_rates,
 124                 .nrates = ARRAY_SIZE(qvga_rates),
 125         },
 126         { /* 640x480 */
 127                 .rates = vga_rates,
 128                 .nrates = ARRAY_SIZE(vga_rates),
 129         },
 130 };
 131
 132 struct reg_array {
 133         const u8 (*val)[2];
 134         int len;
 135 };
 136
 137 static const u8 bridge_init_767x[][2] = {
 138 /* comments from the ms-win file apollo7670.set */
 139 /* str1 */
 140         {0xf1, 0x42},
 141         {0x88, 0xf8},
 142         {0x89, 0xff},
 143         {0x76, 0x03},
 144         {0x92, 0x03},
 145         {0x95, 0x10},
 146         {0xe2, 0x00},
 147         {0xe7, 0x3e},
 148         {0x8d, 0x1c},
 149         {0x8e, 0x00},
 150         {0x8f, 0x00},
 151         {0x1f, 0x00},
 152         {0xc3, 0xf9},
 153         {0x89, 0xff},
 154         {0x88, 0xf8},
 155         {0x76, 0x03},
 156         {0x92, 0x01},
 157         {0x93, 0x18},
 158         {0x1c, 0x00},
 159         {0x1d, 0x48},
 160         {0x1d, 0x00},
 161         {0x1d, 0xff},
 162         {0x1d, 0x02},
 163         {0x1d, 0x58},
 164         {0x1d, 0x00},
 165         {0x1c, 0x0a},
 166         {0x1d, 0x0a},
 167         {0x1d, 0x0e},
 168         {0xc0, 0x50},   /* HSize 640 */
 169         {0xc1, 0x3c},   /* VSize 480 */
 170         {0x34, 0x05},   /* enable Audio Suspend mode */
 171         {0xc2, 0x0c},   /* Input YUV */
 172         {0xc3, 0xf9},   /* enable PRE */
 173         {0x34, 0x05},   /* enable Audio Suspend mode */
 174         {0xe7, 0x2e},   /* this solves failure of "SuspendResumeTest" */
 175         {0x31, 0xf9},   /* enable 1.8V Suspend */
 176         {0x35, 0x02},   /* turn on JPEG */
 177         {0xd9, 0x10},
 178         {0x25, 0x42},   /* GPIO[8]:Input */
 179         {0x94, 0x11},   /* If the default setting is loaded when
 180                          * system boots up, this flag is closed here */
 181 };
 182 static const u8 sensor_init_767x[][2] = {
 183         {0x12, 0x80},
 184         {0x11, 0x03},
 185         {0x3a, 0x04},
 186         {0x12, 0x00},
 187         {0x17, 0x13},
 188         {0x18, 0x01},
 189         {0x32, 0xb6},
 190         {0x19, 0x02},
 191         {0x1a, 0x7a},
 192         {0x03, 0x0a},
 193         {0x0c, 0x00},
 194         {0x3e, 0x00},
 195         {0x70, 0x3a},
 196         {0x71, 0x35},
 197         {0x72, 0x11},
 198         {0x73, 0xf0},
 199         {0xa2, 0x02},
 200         {0x7a, 0x2a},   /* set Gamma=1.6 below */
 201         {0x7b, 0x12},
 202         {0x7c, 0x1d},
 203         {0x7d, 0x2d},
 204         {0x7e, 0x45},
 205         {0x7f, 0x50},
 206         {0x80, 0x59},
 207         {0x81, 0x62},
 208         {0x82, 0x6b},
 209         {0x83, 0x73},
 210         {0x84, 0x7b},
 211         {0x85, 0x8a},
 212         {0x86, 0x98},
 213         {0x87, 0xb2},
 214         {0x88, 0xca},
 215         {0x89, 0xe0},
 216         {0x13, 0xe0},
 217         {0x00, 0x00},
 218         {0x10, 0x00},
 219         {0x0d, 0x40},
 220         {0x14, 0x38},   /* gain max 16x */
 221         {0xa5, 0x05},
 222         {0xab, 0x07},
 223         {0x24, 0x95},
 224         {0x25, 0x33},
 225         {0x26, 0xe3},
 226         {0x9f, 0x78},
 227         {0xa0, 0x68},
 228         {0xa1, 0x03},
 229         {0xa6, 0xd8},
 230         {0xa7, 0xd8},
 231         {0xa8, 0xf0},
 232         {0xa9, 0x90},
 233         {0xaa, 0x94},
 234         {0x13, 0xe5},
 235         {0x0e, 0x61},
 236         {0x0f, 0x4b},
 237         {0x16, 0x02},
 238         {0x21, 0x02},
 239         {0x22, 0x91},
 240         {0x29, 0x07},
 241         {0x33, 0x0b},
 242         {0x35, 0x0b},
 243         {0x37, 0x1d},
 244         {0x38, 0x71},
 245         {0x39, 0x2a},
 246         {0x3c, 0x78},
 247         {0x4d, 0x40},
 248         {0x4e, 0x20},
 249         {0x69, 0x00},
 250         {0x6b, 0x4a},
 251         {0x74, 0x10},
 252         {0x8d, 0x4f},
 253         {0x8e, 0x00},
 254         {0x8f, 0x00},
 255         {0x90, 0x00},
 256         {0x91, 0x00},
 257         {0x96, 0x00},
 258         {0x9a, 0x80},
 259         {0xb0, 0x84},
 260         {0xb1, 0x0c},
 261         {0xb2, 0x0e},
 262         {0xb3, 0x82},
 263         {0xb8, 0x0a},
 264         {0x43, 0x0a},
 265         {0x44, 0xf0},
 266         {0x45, 0x34},
 267         {0x46, 0x58},
 268         {0x47, 0x28},
 269         {0x48, 0x3a},
 270         {0x59, 0x88},
 271         {0x5a, 0x88},
 272         {0x5b, 0x44},
 273         {0x5c, 0x67},
 274         {0x5d, 0x49},
 275         {0x5e, 0x0e},
 276         {0x6c, 0x0a},
 277         {0x6d, 0x55},
 278         {0x6e, 0x11},
 279         {0x6f, 0x9f},
 280         {0x6a, 0x40},
 281         {0x01, 0x40},
 282         {0x02, 0x40},
 283         {0x13, 0xe7},
 284         {0x4f, 0x80},
 285         {0x50, 0x80},
 286         {0x51, 0x00},
 287         {0x52, 0x22},
 288         {0x53, 0x5e},
 289         {0x54, 0x80},
 290         {0x58, 0x9e},
 291         {0x41, 0x08},
 292         {0x3f, 0x00},
 293         {0x75, 0x04},
 294         {0x76, 0xe1},
 295         {0x4c, 0x00},
 296         {0x77, 0x01},
 297         {0x3d, 0xc2},
 298         {0x4b, 0x09},
 299         {0xc9, 0x60},
 300         {0x41, 0x38},   /* jfm: auto sharpness + auto de-noise  */
 301         {0x56, 0x40},
 302         {0x34, 0x11},
 303         {0x3b, 0xc2},
 304         {0xa4, 0x8a},   /* Night mode trigger point */
 305         {0x96, 0x00},
 306         {0x97, 0x30},
 307         {0x98, 0x20},
 308         {0x99, 0x20},
 309         {0x9a, 0x84},
 310         {0x9b, 0x29},
 311         {0x9c, 0x03},
 312         {0x9d, 0x4c},
 313         {0x9e, 0x3f},
 314         {0x78, 0x04},
 315         {0x79, 0x01},
 316         {0xc8, 0xf0},
 317         {0x79, 0x0f},
 318         {0xc8, 0x00},
 319         {0x79, 0x10},
 320         {0xc8, 0x7e},
 321         {0x79, 0x0a},
 322         {0xc8, 0x80},
 323         {0x79, 0x0b},
 324         {0xc8, 0x01},
 325         {0x79, 0x0c},
 326         {0xc8, 0x0f},
 327         {0x79, 0x0d},
 328         {0xc8, 0x20},
 329         {0x79, 0x09},
 330         {0xc8, 0x80},
 331         {0x79, 0x02},
 332         {0xc8, 0xc0},
 333         {0x79, 0x03},
 334         {0xc8, 0x20},
 335         {0x79, 0x26},
 336 };
 337 static const u8 bridge_start_vga_767x[][2] = {
 338 /* str59 JPG */
 339         {0x94, 0xaa},
 340         {0xf1, 0x42},
 341         {0xe5, 0x04},
 342         {0xc0, 0x50},
 343         {0xc1, 0x3c},
 344         {0xc2, 0x0c},
 345         {0x35, 0x02},   /* turn on JPEG */
 346         {0xd9, 0x10},
 347         {0xda, 0x00},   /* for higher clock rate(30fps) */
 348         {0x34, 0x05},   /* enable Audio Suspend mode */
 349         {0xc3, 0xf9},   /* enable PRE */
 350         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 351         {0x8d, 0x1c},   /* output YUV */
 352 /*      {0x34, 0x05},    * enable Audio Suspend mode (?) */
 353         {0x50, 0x00},   /* H/V divider=0 */
 354         {0x51, 0xa0},   /* input H=640/4 */
 355         {0x52, 0x3c},   /* input V=480/4 */
 356         {0x53, 0x00},   /* offset X=0 */
 357         {0x54, 0x00},   /* offset Y=0 */
 358         {0x55, 0x00},   /* H/V size[8]=0 */
 359         {0x57, 0x00},   /* H-size[9]=0 */
 360         {0x5c, 0x00},   /* output size[9:8]=0 */
 361         {0x5a, 0xa0},   /* output H=640/4 */
 362         {0x5b, 0x78},   /* output V=480/4 */
 363         {0x1c, 0x0a},
 364         {0x1d, 0x0a},
 365         {0x94, 0x11},
 366 };
 367 static const u8 sensor_start_vga_767x[][2] = {
 368         {0x11, 0x01},
 369         {0x1e, 0x04},
 370         {0x19, 0x02},
 371         {0x1a, 0x7a},
 372 };
 373 static const u8 bridge_start_qvga_767x[][2] = {
 374 /* str86 JPG */
 375         {0x94, 0xaa},
 376         {0xf1, 0x42},
 377         {0xe5, 0x04},
 378         {0xc0, 0x80},
 379         {0xc1, 0x60},
 380         {0xc2, 0x0c},
 381         {0x35, 0x02},   /* turn on JPEG */
 382         {0xd9, 0x10},
 383         {0xc0, 0x50},   /* CIF HSize 640 */
 384         {0xc1, 0x3c},   /* CIF VSize 480 */
 385         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 386         {0x8d, 0x1c},   /* output YUV */
 387         {0x34, 0x05},   /* enable Audio Suspend mode */
 388         {0xc2, 0x4c},   /* output YUV and Enable DCW */
 389         {0xc3, 0xf9},   /* enable PRE */
 390         {0x1c, 0x00},   /* indirect addressing */
 391         {0x1d, 0x48},   /* output YUV422 */
 392         {0x50, 0x89},   /* H/V divider=/2; plus DCW AVG */
 393         {0x51, 0xa0},   /* DCW input H=640/4 */
 394         {0x52, 0x78},   /* DCW input V=480/4 */
 395         {0x53, 0x00},   /* offset X=0 */
 396         {0x54, 0x00},   /* offset Y=0 */
 397         {0x55, 0x00},   /* H/V size[8]=0 */
 398         {0x57, 0x00},   /* H-size[9]=0 */
 399         {0x5c, 0x00},   /* DCW output size[9:8]=0 */
 400         {0x5a, 0x50},   /* DCW output H=320/4 */
 401         {0x5b, 0x3c},   /* DCW output V=240/4 */
 402         {0x1c, 0x0a},
 403         {0x1d, 0x0a},
 404         {0x94, 0x11},
 405 };
 406 static const u8 sensor_start_qvga_767x[][2] = {
 407         {0x11, 0x01},
 408         {0x1e, 0x04},
 409         {0x19, 0x02},
 410         {0x1a, 0x7a},
 411 };
 412
 413 static const u8 bridge_init_772x[][2] = {
 414         { 0xc2, 0x0c },
 415         { 0x88, 0xf8 },
 416         { 0xc3, 0x69 },
 417         { 0x89, 0xff },
 418         { 0x76, 0x03 },
 419         { 0x92, 0x01 },
 420         { 0x93, 0x18 },
 421         { 0x94, 0x10 },
 422         { 0x95, 0x10 },
 423         { 0xe2, 0x00 },
 424         { 0xe7, 0x3e },
 425
 426         { 0x96, 0x00 },
 427
 428         { 0x97, 0x20 },
 429         { 0x97, 0x20 },
 430         { 0x97, 0x20 },
 431         { 0x97, 0x0a },
 432         { 0x97, 0x3f },
 433         { 0x97, 0x4a },
 434         { 0x97, 0x20 },
 435         { 0x97, 0x15 },
 436         { 0x97, 0x0b },
 437
 438         { 0x8e, 0x40 },
 439         { 0x1f, 0x81 },
 440         { 0x34, 0x05 },
 441         { 0xe3, 0x04 },
 442         { 0x88, 0x00 },
 443         { 0x89, 0x00 },
 444         { 0x76, 0x00 },
 445         { 0xe7, 0x2e },
 446         { 0x31, 0xf9 },
 447         { 0x25, 0x42 },
 448         { 0x21, 0xf0 },
 449
 450         { 0x1c, 0x00 },
 451         { 0x1d, 0x40 },
 452         { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
 453         { 0x1d, 0x00 }, /* payload size */
 454
 455         { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
 456         { 0x1d, 0x58 }, /* frame size */
 457         { 0x1d, 0x00 }, /* frame size */
 458
 459         { 0x1c, 0x0a },
 460         { 0x1d, 0x08 }, /* turn on UVC header */
 461         { 0x1d, 0x0e }, /* .. */
 462
 463         { 0x8d, 0x1c },
 464         { 0x8e, 0x80 },
 465         { 0xe5, 0x04 },
 466
 467         { 0xc0, 0x50 },
 468         { 0xc1, 0x3c },
 469         { 0xc2, 0x0c },
 470 };
 471 static const u8 sensor_init_772x[][2] = {
 472         { 0x12, 0x80 },
 473         { 0x11, 0x01 },
 474 /*fixme: better have a delay?*/
 475         { 0x11, 0x01 },
 476         { 0x11, 0x01 },
 477         { 0x11, 0x01 },
 478         { 0x11, 0x01 },
 479         { 0x11, 0x01 },
 480         { 0x11, 0x01 },
 481         { 0x11, 0x01 },
 482         { 0x11, 0x01 },
 483         { 0x11, 0x01 },
 484         { 0x11, 0x01 },
 485
 486         { 0x3d, 0x03 },
 487         { 0x17, 0x26 },
 488         { 0x18, 0xa0 },
 489         { 0x19, 0x07 },
 490         { 0x1a, 0xf0 },
 491         { 0x32, 0x00 },
 492         { 0x29, 0xa0 },
 493         { 0x2c, 0xf0 },
 494         { 0x65, 0x20 },
 495         { 0x11, 0x01 },
 496         { 0x42, 0x7f },
 497         { 0x63, 0xaa },         /* AWB - was e0 */
 498         { 0x64, 0xff },
 499         { 0x66, 0x00 },
 500         { 0x13, 0xf0 },         /* com8 */
 501         { 0x0d, 0x41 },
 502         { 0x0f, 0xc5 },
 503         { 0x14, 0x11 },
 504
 505         { 0x22, 0x7f },
 506         { 0x23, 0x03 },
 507         { 0x24, 0x40 },
 508         { 0x25, 0x30 },
 509         { 0x26, 0xa1 },
 510         { 0x2a, 0x00 },
 511         { 0x2b, 0x00 },
 512         { 0x6b, 0xaa },
 513         { 0x13, 0xff },         /* AWB */
 514
 515         { 0x90, 0x05 },
 516         { 0x91, 0x01 },
 517         { 0x92, 0x03 },
 518         { 0x93, 0x00 },
 519         { 0x94, 0x60 },
 520         { 0x95, 0x3c },
 521         { 0x96, 0x24 },
 522         { 0x97, 0x1e },
 523         { 0x98, 0x62 },
 524         { 0x99, 0x80 },
 525         { 0x9a, 0x1e },
 526         { 0x9b, 0x08 },
 527         { 0x9c, 0x20 },
 528         { 0x9e, 0x81 },
 529
 530         { 0xa6, 0x07 },
 531         { 0x7e, 0x0c },
 532         { 0x7f, 0x16 },
 533         { 0x80, 0x2a },
 534         { 0x81, 0x4e },
 535         { 0x82, 0x61 },
 536         { 0x83, 0x6f },
 537         { 0x84, 0x7b },
 538         { 0x85, 0x86 },
 539         { 0x86, 0x8e },
 540         { 0x87, 0x97 },
 541         { 0x88, 0xa4 },
 542         { 0x89, 0xaf },
 543         { 0x8a, 0xc5 },
 544         { 0x8b, 0xd7 },
 545         { 0x8c, 0xe8 },
 546         { 0x8d, 0x20 },
 547
 548         { 0x0c, 0x90 },
 549
 550         { 0x2b, 0x00 },
 551         { 0x22, 0x7f },
 552         { 0x23, 0x03 },
 553         { 0x11, 0x01 },
 554         { 0x0c, 0xd0 },
 555         { 0x64, 0xff },
 556         { 0x0d, 0x41 },
 557
 558         { 0x14, 0x41 },
 559         { 0x0e, 0xcd },
 560         { 0xac, 0xbf },
 561         { 0x8e, 0x00 },         /* De-noise threshold */
 562         { 0x0c, 0xd0 }
 563 };
 564 static const u8 bridge_start_vga_772x[][2] = {
 565         {0x1c, 0x00},
 566         {0x1d, 0x40},
 567         {0x1d, 0x02},
 568         {0x1d, 0x00},
 569         {0x1d, 0x02},
 570         {0x1d, 0x58},
 571         {0x1d, 0x00},
 572         {0xc0, 0x50},
 573         {0xc1, 0x3c},
 574 };
 575 static const u8 sensor_start_vga_772x[][2] = {
 576         {0x12, 0x00},
 577         {0x17, 0x26},
 578         {0x18, 0xa0},
 579         {0x19, 0x07},
 580         {0x1a, 0xf0},
 581         {0x29, 0xa0},
 582         {0x2c, 0xf0},
 583         {0x65, 0x20},
 584 };
 585 static const u8 bridge_start_qvga_772x[][2] = {
 586         {0x1c, 0x00},
 587         {0x1d, 0x40},
 588         {0x1d, 0x02},
 589         {0x1d, 0x00},
 590         {0x1d, 0x01},
 591         {0x1d, 0x4b},
 592         {0x1d, 0x00},
 593         {0xc0, 0x28},
 594         {0xc1, 0x1e},
 595 };
 596 static const u8 sensor_start_qvga_772x[][2] = {
 597         {0x12, 0x40},
 598         {0x17, 0x3f},
 599         {0x18, 0x50},
 600         {0x19, 0x03},
 601         {0x1a, 0x78},
 602         {0x29, 0x50},
 603         {0x2c, 0x78},
 604         {0x65, 0x2f},
 605 };
 606
 607 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 608 {
 609         struct usb_device *udev = gspca_dev->dev;
 610         int ret;
 611
 612         if (gspca_dev->usb_err < 0)
 613                 return;
 614
 615         PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
 616         gspca_dev->usb_buf[0] = val;
 617         ret = usb_control_msg(udev,
 618                               usb_sndctrlpipe(udev, 0),
 619                               0x01,
 620                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 621                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 622         if (ret < 0) {
 623                 pr_err("write failed %d\n", ret);
 624                 gspca_dev->usb_err = ret;
 625         }
 626 }
 627
 628 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 629 {
 630         struct usb_device *udev = gspca_dev->dev;
 631         int ret;
 632
 633         if (gspca_dev->usb_err < 0)
 634                 return 0;
 635         ret = usb_control_msg(udev,
 636                               usb_rcvctrlpipe(udev, 0),
 637                               0x01,
 638                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 639                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 640         PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
 641         if (ret < 0) {
 642                 pr_err("read failed %d\n", ret);
 643                 gspca_dev->usb_err = ret;
 644                 /*
 645                  * Make sure the result is zeroed to avoid uninitialized
 646                  * values.
 647                  */
 648                 gspca_dev->usb_buf[0] = 0;
 649         }
 650         return gspca_dev->usb_buf[0];
 651 }
 652
 653 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 654  * (direction and output)? */
 655 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 656 {
 657         u8 data;
 658
 659         PDEBUG(D_CONF, "led status: %d", status);
 660
 661         data = ov534_reg_read(gspca_dev, 0x21);
 662         data |= 0x80;
 663         ov534_reg_write(gspca_dev, 0x21, data);
 664
 665         data = ov534_reg_read(gspca_dev, 0x23);
 666         if (status)
 667                 data |= 0x80;
 668         else
 669                 data &= ~0x80;
 670
 671         ov534_reg_write(gspca_dev, 0x23, data);
 672
 673         if (!status) {
 674                 data = ov534_reg_read(gspca_dev, 0x21);
 675                 data &= ~0x80;
 676                 ov534_reg_write(gspca_dev, 0x21, data);
 677         }
 678 }
 679
 680 static int sccb_check_status(struct gspca_dev *gspca_dev)
 681 {
 682         u8 data;
 683         int i;
 684
 685         for (i = 0; i < 5; i++) {
 686                 msleep(10);
 687                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 688
 689                 switch (data) {
 690                 case 0x00:
 691                         return 1;
 692                 case 0x04:
 693                         return 0;
 694                 case 0x03:
 695                         break;
 696                 default:
 697                         PERR("sccb status 0x%02x, attempt %d/5",
 698                                data, i + 1);
 699                 }
 700         }
 701         return 0;
 702 }
 703
 704 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 705 {
 706         PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
 707         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 708         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 709         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 710
 711         if (!sccb_check_status(gspca_dev)) {
 712                 pr_err("sccb_reg_write failed\n");
 713                 gspca_dev->usb_err = -EIO;
 714         }
 715 }
 716
 717 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 718 {
 719         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 720         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 721         if (!sccb_check_status(gspca_dev))
 722                 pr_err("sccb_reg_read failed 1\n");
 723
 724         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 725         if (!sccb_check_status(gspca_dev))
 726                 pr_err("sccb_reg_read failed 2\n");
 727
 728         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 729 }
 730
 731 /* output a bridge sequence (reg - val) */
 732 static void reg_w_array(struct gspca_dev *gspca_dev,
 733                         const u8 (*data)[2], int len)
 734 {
 735         while (--len >= 0) {
 736                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 737                 data++;
 738         }
 739 }
 740
 741 /* output a sensor sequence (reg - val) */
 742 static void sccb_w_array(struct gspca_dev *gspca_dev,
 743                         const u8 (*data)[2], int len)
 744 {
 745         while (--len >= 0) {
 746                 if ((*data)[0] != 0xff) {
 747                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 748                 } else {
 749                         sccb_reg_read(gspca_dev, (*data)[1]);
 750                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 751                 }
 752                 data++;
 753         }
 754 }
 755
 756 /* ov772x specific controls */
 757 static void set_frame_rate(struct gspca_dev *gspca_dev)
 758 {
 759         struct sd *sd = (struct sd *) gspca_dev;
 760         int i;
 761         struct rate_s {
 762                 u8 fps;
 763                 u8 r11;
 764                 u8 r0d;
 765                 u8 re5;
 766         };
 767         const struct rate_s *r;
 768         static const struct rate_s rate_0[] = { /* 640x480 */
 769                 {60, 0x01, 0xc1, 0x04},
 770                 {50, 0x01, 0x41, 0x02},
 771                 {40, 0x02, 0xc1, 0x04},
 772                 {30, 0x04, 0x81, 0x02},
 773                 {15, 0x03, 0x41, 0x04},
 774         };
 775         static const struct rate_s rate_1[] = { /* 320x240 */
 776 /*              {205, 0x01, 0xc1, 0x02},  * 205 FPS: video is partly corrupt */
 777                 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
 778                 {150, 0x01, 0xc1, 0x04},
 779                 {137, 0x02, 0xc1, 0x02},
 780                 {125, 0x02, 0x81, 0x02},
 781                 {100, 0x02, 0xc1, 0x04},
 782                 {75, 0x03, 0xc1, 0x04},
 783                 {60, 0x04, 0xc1, 0x04},
 784                 {50, 0x02, 0x41, 0x04},
 785                 {37, 0x03, 0x41, 0x04},
 786                 {30, 0x04, 0x41, 0x04},
 787         };
 788
 789         if (sd->sensor != SENSOR_OV772x)
 790                 return;
 791         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 792                 r = rate_0;
 793                 i = ARRAY_SIZE(rate_0);
 794         } else {
 795                 r = rate_1;
 796                 i = ARRAY_SIZE(rate_1);
 797         }
 798         while (--i > 0) {
 799                 if (sd->frame_rate >= r->fps)
 800                         break;
 801                 r++;
 802         }
 803
 804         sccb_reg_write(gspca_dev, 0x11, r->r11);
 805         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 806         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 807
 808         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 809 }
 810
 811 static void sethue(struct gspca_dev *gspca_dev, s32 val)
 812 {
 813         struct sd *sd = (struct sd *) gspca_dev;
 814
 815         if (sd->sensor == SENSOR_OV767x) {
 816                 /* TBD */
 817         } else {
 818                 s16 huesin;
 819                 s16 huecos;
 820
 821                 /* According to the datasheet the registers expect HUESIN and
 822                  * HUECOS to be the result of the trigonometric functions,
 823                  * scaled by 0x80.
 824                  *
 825                  * The 0x7fff here represents the maximum absolute value
 826                  * returned byt fixp_sin and fixp_cos, so the scaling will
 827                  * consider the result like in the interval [-1.0, 1.0].
 828                  */
 829                 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
 830                 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
 831
 832                 if (huesin < 0) {
 833                         sccb_reg_write(gspca_dev, 0xab,
 834                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
 835                         huesin = -huesin;
 836                 } else {
 837                         sccb_reg_write(gspca_dev, 0xab,
 838                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
 839
 840                 }
 841                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
 842                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
 843         }
 844 }
 845
 846 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
 847 {
 848         struct sd *sd = (struct sd *) gspca_dev;
 849
 850         if (sd->sensor == SENSOR_OV767x) {
 851                 int i;
 852                 static u8 color_tb[][6] = {
 853                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
 854                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
 855                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
 856                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
 857                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
 858                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
 859                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
 860                 };
 861
 862                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
 863                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
 864         } else {
 865                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
 866                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
 867         }
 868 }
 869
 870 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 871 {
 872         struct sd *sd = (struct sd *) gspca_dev;
 873
 874         if (sd->sensor == SENSOR_OV767x) {
 875                 if (val < 0)
 876                         val = 0x80 - val;
 877                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
 878         } else {
 879                 sccb_reg_write(gspca_dev, 0x9b, val);
 880         }
 881 }
 882
 883 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 884 {
 885         struct sd *sd = (struct sd *) gspca_dev;
 886
 887         if (sd->sensor == SENSOR_OV767x)
 888                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
 889         else
 890                 sccb_reg_write(gspca_dev, 0x9c, val);
 891 }
 892
 893 static void setgain(struct gspca_dev *gspca_dev, s32 val)
 894 {
 895         switch (val & 0x30) {
 896         case 0x00:
 897                 val &= 0x0f;
 898                 break;
 899         case 0x10:
 900                 val &= 0x0f;
 901                 val |= 0x30;
 902                 break;
 903         case 0x20:
 904                 val &= 0x0f;
 905                 val |= 0x70;
 906                 break;
 907         default:
 908 /*      case 0x30: */
 909                 val &= 0x0f;
 910                 val |= 0xf0;
 911                 break;
 912         }
 913         sccb_reg_write(gspca_dev, 0x00, val);
 914 }
 915
 916 static s32 getgain(struct gspca_dev *gspca_dev)
 917 {
 918         return sccb_reg_read(gspca_dev, 0x00);
 919 }
 920
 921 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 922 {
 923         struct sd *sd = (struct sd *) gspca_dev;
 924
 925         if (sd->sensor == SENSOR_OV767x) {
 926
 927                 /* set only aec[9:2] */
 928                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
 929         } else {
 930
 931                 /* 'val' is one byte and represents half of the exposure value
 932                  * we are going to set into registers, a two bytes value:
 933                  *
 934                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
 935                  *    LSB: ((u16) val << 1) & 0xff == val << 1
 936                  */
 937                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
 938                 sccb_reg_write(gspca_dev, 0x10, val << 1);
 939         }
 940 }
 941
 942 static s32 getexposure(struct gspca_dev *gspca_dev)
 943 {
 944         struct sd *sd = (struct sd *) gspca_dev;
 945
 946         if (sd->sensor == SENSOR_OV767x) {
 947                 /* get only aec[9:2] */
 948                 return sccb_reg_read(gspca_dev, 0x10);  /* aech */
 949         } else {
 950                 u8 hi = sccb_reg_read(gspca_dev, 0x08);
 951                 u8 lo = sccb_reg_read(gspca_dev, 0x10);
 952                 return (hi << 8 | lo) >> 1;
 953         }
 954 }
 955
 956 static void setagc(struct gspca_dev *gspca_dev, s32 val)
 957 {
 958         if (val) {
 959                 sccb_reg_write(gspca_dev, 0x13,
 960                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
 961                 sccb_reg_write(gspca_dev, 0x64,
 962                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
 963         } else {
 964                 sccb_reg_write(gspca_dev, 0x13,
 965                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
 966                 sccb_reg_write(gspca_dev, 0x64,
 967                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
 968         }
 969 }
 970
 971 static void setawb(struct gspca_dev *gspca_dev, s32 val)
 972 {
 973         struct sd *sd = (struct sd *) gspca_dev;
 974
 975         if (val) {
 976                 sccb_reg_write(gspca_dev, 0x13,
 977                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
 978                 if (sd->sensor == SENSOR_OV772x)
 979                         sccb_reg_write(gspca_dev, 0x63,
 980                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
 981         } else {
 982                 sccb_reg_write(gspca_dev, 0x13,
 983                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
 984                 if (sd->sensor == SENSOR_OV772x)
 985                         sccb_reg_write(gspca_dev, 0x63,
 986                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
 987         }
 988 }
 989
 990 static void setaec(struct gspca_dev *gspca_dev, s32 val)
 991 {
 992         struct sd *sd = (struct sd *) gspca_dev;
 993         u8 data;
 994
 995         data = sd->sensor == SENSOR_OV767x ?
 996                         0x05 :          /* agc + aec */
 997                         0x01;           /* agc */
 998         switch (val) {
 999         case V4L2_EXPOSURE_AUTO:
1000                 sccb_reg_write(gspca_dev, 0x13,
1001                                 sccb_reg_read(gspca_dev, 0x13) | data);
1002                 break;
1003         case V4L2_EXPOSURE_MANUAL:
1004                 sccb_reg_write(gspca_dev, 0x13,
1005                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1006                 break;
1007         }
1008 }
1009
1010 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1011 {
1012         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1013         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1014 }
1015
1016 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1017 {
1018         struct sd *sd = (struct sd *) gspca_dev;
1019         u8 val;
1020
1021         if (sd->sensor == SENSOR_OV767x) {
1022                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1023                 val &= ~0x30;
1024                 if (hflip)
1025                         val |= 0x20;
1026                 if (vflip)
1027                         val |= 0x10;
1028                 sccb_reg_write(gspca_dev, 0x1e, val);
1029         } else {
1030                 val = sccb_reg_read(gspca_dev, 0x0c);
1031                 val &= ~0xc0;
1032                 if (hflip == 0)
1033                         val |= 0x40;
1034                 if (vflip == 0)
1035                         val |= 0x80;
1036                 sccb_reg_write(gspca_dev, 0x0c, val);
1037         }
1038 }
1039
1040 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1041 {
1042         struct sd *sd = (struct sd *) gspca_dev;
1043
1044         val = val ? 0x9e : 0x00;
1045         if (sd->sensor == SENSOR_OV767x) {
1046                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1047                 if (val)
1048                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1049         }
1050         sccb_reg_write(gspca_dev, 0x2b, val);
1051 }
1052
1053
1054 /* this function is called at probe time */
1055 static int sd_config(struct gspca_dev *gspca_dev,
1056                      const struct usb_device_id *id)
1057 {
1058         struct sd *sd = (struct sd *) gspca_dev;
1059         struct cam *cam;
1060
1061         cam = &gspca_dev->cam;
1062
1063         cam->cam_mode = ov772x_mode;
1064         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1065
1066         sd->frame_rate = DEFAULT_FRAME_RATE;
1067
1068         return 0;
1069 }
1070
1071 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1072 {
1073         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1074         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1075
1076         switch (ctrl->id) {
1077         case V4L2_CID_AUTOGAIN:
1078                 gspca_dev->usb_err = 0;
1079                 if (ctrl->val && sd->gain && gspca_dev->streaming)
1080                         sd->gain->val = getgain(gspca_dev);
1081                 return gspca_dev->usb_err;
1082
1083         case V4L2_CID_EXPOSURE_AUTO:
1084                 gspca_dev->usb_err = 0;
1085                 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1086                     gspca_dev->streaming)
1087                         sd->exposure->val = getexposure(gspca_dev);
1088                 return gspca_dev->usb_err;
1089         }
1090         return -EINVAL;
1091 }
1092
1093 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1094 {
1095         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1096         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1097
1098         gspca_dev->usb_err = 0;
1099         if (!gspca_dev->streaming)
1100                 return 0;
1101
1102         switch (ctrl->id) {
1103         case V4L2_CID_HUE:
1104                 sethue(gspca_dev, ctrl->val);
1105                 break;
1106         case V4L2_CID_SATURATION:
1107                 setsaturation(gspca_dev, ctrl->val);
1108                 break;
1109         case V4L2_CID_BRIGHTNESS:
1110                 setbrightness(gspca_dev, ctrl->val);
1111                 break;
1112         case V4L2_CID_CONTRAST:
1113                 setcontrast(gspca_dev, ctrl->val);
1114                 break;
1115         case V4L2_CID_AUTOGAIN:
1116         /* case V4L2_CID_GAIN: */
1117                 setagc(gspca_dev, ctrl->val);
1118                 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1119                         setgain(gspca_dev, sd->gain->val);
1120                 break;
1121         case V4L2_CID_AUTO_WHITE_BALANCE:
1122                 setawb(gspca_dev, ctrl->val);
1123                 break;
1124         case V4L2_CID_EXPOSURE_AUTO:
1125         /* case V4L2_CID_EXPOSURE: */
1126                 setaec(gspca_dev, ctrl->val);
1127                 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1128                     sd->exposure)
1129                         setexposure(gspca_dev, sd->exposure->val);
1130                 break;
1131         case V4L2_CID_SHARPNESS:
1132                 setsharpness(gspca_dev, ctrl->val);
1133                 break;
1134         case V4L2_CID_HFLIP:
1135                 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1136                 break;
1137         case V4L2_CID_VFLIP:
1138                 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1139                 break;
1140         case V4L2_CID_POWER_LINE_FREQUENCY:
1141                 setlightfreq(gspca_dev, ctrl->val);
1142                 break;
1143         }
1144         return gspca_dev->usb_err;
1145 }
1146
1147 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1148         .g_volatile_ctrl = ov534_g_volatile_ctrl,
1149         .s_ctrl = ov534_s_ctrl,
1150 };
1151
1152 static int sd_init_controls(struct gspca_dev *gspca_dev)
1153 {
1154         struct sd *sd = (struct sd *) gspca_dev;
1155         struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1156         /* parameters with different values between the supported sensors */
1157         int saturation_min;
1158         int saturation_max;
1159         int saturation_def;
1160         int brightness_min;
1161         int brightness_max;
1162         int brightness_def;
1163         int contrast_max;
1164         int contrast_def;
1165         int exposure_min;
1166         int exposure_max;
1167         int exposure_def;
1168         int hflip_def;
1169
1170         if (sd->sensor == SENSOR_OV767x) {
1171                 saturation_min = 0,
1172                 saturation_max = 6,
1173                 saturation_def = 3,
1174                 brightness_min = -127;
1175                 brightness_max = 127;
1176                 brightness_def = 0;
1177                 contrast_max = 0x80;
1178                 contrast_def = 0x40;
1179                 exposure_min = 0x08;
1180                 exposure_max = 0x60;
1181                 exposure_def = 0x13;
1182                 hflip_def = 1;
1183         } else {
1184                 saturation_min = 0,
1185                 saturation_max = 255,
1186                 saturation_def = 64,
1187                 brightness_min = 0;
1188                 brightness_max = 255;
1189                 brightness_def = 0;
1190                 contrast_max = 255;
1191                 contrast_def = 32;
1192                 exposure_min = 0;
1193                 exposure_max = 255;
1194                 exposure_def = 120;
1195                 hflip_def = 0;
1196         }
1197
1198         gspca_dev->vdev.ctrl_handler = hdl;
1199
1200         v4l2_ctrl_handler_init(hdl, 13);
1201
1202         if (sd->sensor == SENSOR_OV772x)
1203                 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1204                                 V4L2_CID_HUE, -90, 90, 1, 0);
1205
1206         sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1207                         V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1208                         saturation_def);
1209         sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1210                         V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1211                         brightness_def);
1212         sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1213                         V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1214
1215         if (sd->sensor == SENSOR_OV772x) {
1216                 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1217                                 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1218                 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1219                                 V4L2_CID_GAIN, 0, 63, 1, 20);
1220         }
1221
1222         sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1223                         V4L2_CID_EXPOSURE_AUTO,
1224                         V4L2_EXPOSURE_MANUAL, 0,
1225                         V4L2_EXPOSURE_AUTO);
1226         sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1227                         V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1228                         exposure_def);
1229
1230         sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1231                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1232
1233         if (sd->sensor == SENSOR_OV772x)
1234                 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1235                                 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1236
1237         sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1238                         V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1239         sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1240                         V4L2_CID_VFLIP, 0, 1, 1, 0);
1241         sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1242                         V4L2_CID_POWER_LINE_FREQUENCY,
1243                         V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1244                         V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1245
1246         if (hdl->error) {
1247                 pr_err("Could not initialize controls\n");
1248                 return hdl->error;
1249         }
1250
1251         if (sd->sensor == SENSOR_OV772x)
1252                 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1253
1254         v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1255                                true);
1256
1257         return 0;
1258 }
1259
1260 /* this function is called at probe and resume time */
1261 static int sd_init(struct gspca_dev *gspca_dev)
1262 {
1263         struct sd *sd = (struct sd *) gspca_dev;
1264         u16 sensor_id;
1265         static const struct reg_array bridge_init[NSENSORS] = {
1266         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1267         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1268         };
1269         static const struct reg_array sensor_init[NSENSORS] = {
1270         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1271         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1272         };
1273
1274         /* reset bridge */
1275         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1276         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1277         msleep(100);
1278
1279         /* initialize the sensor address */
1280         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1281
1282         /* reset sensor */
1283         sccb_reg_write(gspca_dev, 0x12, 0x80);
1284         msleep(10);
1285
1286         /* probe the sensor */
1287         sccb_reg_read(gspca_dev, 0x0a);
1288         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1289         sccb_reg_read(gspca_dev, 0x0b);
1290         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1291         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1292
1293         if ((sensor_id & 0xfff0) == 0x7670) {
1294                 sd->sensor = SENSOR_OV767x;
1295                 gspca_dev->cam.cam_mode = ov767x_mode;
1296                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1297         } else {
1298                 sd->sensor = SENSOR_OV772x;
1299                 gspca_dev->cam.bulk = 1;
1300                 gspca_dev->cam.bulk_size = 16384;
1301                 gspca_dev->cam.bulk_nurbs = 2;
1302                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1303         }
1304
1305         /* initialize */
1306         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1307                         bridge_init[sd->sensor].len);
1308         ov534_set_led(gspca_dev, 1);
1309         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1310                         sensor_init[sd->sensor].len);
1311
1312         sd_stopN(gspca_dev);
1313 /*      set_frame_rate(gspca_dev);      */
1314
1315         return gspca_dev->usb_err;
1316 }
1317
1318 static int sd_start(struct gspca_dev *gspca_dev)
1319 {
1320         struct sd *sd = (struct sd *) gspca_dev;
1321         int mode;
1322         static const struct reg_array bridge_start[NSENSORS][2] = {
1323         [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1324                                         ARRAY_SIZE(bridge_start_qvga_767x)},
1325                         {bridge_start_vga_767x,
1326                                         ARRAY_SIZE(bridge_start_vga_767x)}},
1327         [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1328                                         ARRAY_SIZE(bridge_start_qvga_772x)},
1329                         {bridge_start_vga_772x,
1330                                         ARRAY_SIZE(bridge_start_vga_772x)}},
1331         };
1332         static const struct reg_array sensor_start[NSENSORS][2] = {
1333         [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1334                                         ARRAY_SIZE(sensor_start_qvga_767x)},
1335                         {sensor_start_vga_767x,
1336                                         ARRAY_SIZE(sensor_start_vga_767x)}},
1337         [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1338                                         ARRAY_SIZE(sensor_start_qvga_772x)},
1339                         {sensor_start_vga_772x,
1340                                         ARRAY_SIZE(sensor_start_vga_772x)}},
1341         };
1342
1343         /* (from ms-win trace) */
1344         if (sd->sensor == SENSOR_OV767x)
1345                 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1346                                         /* black sun enable ? */
1347
1348         mode = gspca_dev->curr_mode;    /* 0: 320x240, 1: 640x480 */
1349         reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1350                                 bridge_start[sd->sensor][mode].len);
1351         sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1352                                 sensor_start[sd->sensor][mode].len);
1353
1354         set_frame_rate(gspca_dev);
1355
1356         if (sd->hue)
1357                 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1358         setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1359         if (sd->autogain)
1360                 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1361         setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1362         setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1363         if (sd->gain)
1364                 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1365         setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1366         setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1367         setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1368         if (sd->sharpness)
1369                 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1370         sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1371                   v4l2_ctrl_g_ctrl(sd->vflip));
1372         setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1373
1374         ov534_set_led(gspca_dev, 1);
1375         ov534_reg_write(gspca_dev, 0xe0, 0x00);
1376         return gspca_dev->usb_err;
1377 }
1378
1379 static void sd_stopN(struct gspca_dev *gspca_dev)
1380 {
1381         ov534_reg_write(gspca_dev, 0xe0, 0x09);
1382         ov534_set_led(gspca_dev, 0);
1383 }
1384
1385 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1386 #define UVC_STREAM_EOH  (1 << 7)
1387 #define UVC_STREAM_ERR  (1 << 6)
1388 #define UVC_STREAM_STI  (1 << 5)
1389 #define UVC_STREAM_RES  (1 << 4)
1390 #define UVC_STREAM_SCR  (1 << 3)
1391 #define UVC_STREAM_PTS  (1 << 2)
1392 #define UVC_STREAM_EOF  (1 << 1)
1393 #define UVC_STREAM_FID  (1 << 0)
1394
1395 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1396                         u8 *data, int len)
1397 {
1398         struct sd *sd = (struct sd *) gspca_dev;
1399         __u32 this_pts;
1400         u16 this_fid;
1401         int remaining_len = len;
1402         int payload_len;
1403
1404         payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1405         do {
1406                 len = min(remaining_len, payload_len);
1407
1408                 /* Payloads are prefixed with a UVC-style header.  We
1409                    consider a frame to start when the FID toggles, or the PTS
1410                    changes.  A frame ends when EOF is set, and we've received
1411                    the correct number of bytes. */
1412
1413                 /* Verify UVC header.  Header length is always 12 */
1414                 if (data[0] != 12 || len < 12) {
1415                         PDEBUG(D_PACK, "bad header");
1416                         goto discard;
1417                 }
1418
1419                 /* Check errors */
1420                 if (data[1] & UVC_STREAM_ERR) {
1421                         PDEBUG(D_PACK, "payload error");
1422                         goto discard;
1423                 }
1424
1425                 /* Extract PTS and FID */
1426                 if (!(data[1] & UVC_STREAM_PTS)) {
1427                         PDEBUG(D_PACK, "PTS not present");
1428                         goto discard;
1429                 }
1430                 this_pts = (data[5] << 24) | (data[4] << 16)
1431                                                 | (data[3] << 8) | data[2];
1432                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1433
1434                 /* If PTS or FID has changed, start a new frame. */
1435                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1436                         if (gspca_dev->last_packet_type == INTER_PACKET)
1437                                 gspca_frame_add(gspca_dev, LAST_PACKET,
1438                                                 NULL, 0);
1439                         sd->last_pts = this_pts;
1440                         sd->last_fid = this_fid;
1441                         gspca_frame_add(gspca_dev, FIRST_PACKET,
1442                                         data + 12, len - 12);
1443                 /* If this packet is marked as EOF, end the frame */
1444                 } else if (data[1] & UVC_STREAM_EOF) {
1445                         sd->last_pts = 0;
1446                         if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
1447                          && gspca_dev->image_len + len - 12 !=
1448                                    gspca_dev->pixfmt.width *
1449                                         gspca_dev->pixfmt.height * 2) {
1450                                 PDEBUG(D_PACK, "wrong sized frame");
1451                                 goto discard;
1452                         }
1453                         gspca_frame_add(gspca_dev, LAST_PACKET,
1454                                         data + 12, len - 12);
1455                 } else {
1456
1457                         /* Add the data from this payload */
1458                         gspca_frame_add(gspca_dev, INTER_PACKET,
1459                                         data + 12, len - 12);
1460                 }
1461
1462                 /* Done this payload */
1463                 goto scan_next;
1464
1465 discard:
1466                 /* Discard data until a new frame starts. */
1467                 gspca_dev->last_packet_type = DISCARD_PACKET;
1468
1469 scan_next:
1470                 remaining_len -= len;
1471                 data += len;
1472         } while (remaining_len > 0);
1473 }
1474
1475 /* get stream parameters (framerate) */
1476 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1477                              struct v4l2_streamparm *parm)
1478 {
1479         struct v4l2_captureparm *cp = &parm->parm.capture;
1480         struct v4l2_fract *tpf = &cp->timeperframe;
1481         struct sd *sd = (struct sd *) gspca_dev;
1482
1483         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1484         tpf->numerator = 1;
1485         tpf->denominator = sd->frame_rate;
1486 }
1487
1488 /* set stream parameters (framerate) */
1489 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1490                              struct v4l2_streamparm *parm)
1491 {
1492         struct v4l2_captureparm *cp = &parm->parm.capture;
1493         struct v4l2_fract *tpf = &cp->timeperframe;
1494         struct sd *sd = (struct sd *) gspca_dev;
1495
1496         if (tpf->numerator == 0 || tpf->denominator == 0)
1497                 sd->frame_rate = DEFAULT_FRAME_RATE;
1498         else
1499                 sd->frame_rate = tpf->denominator / tpf->numerator;
1500
1501         if (gspca_dev->streaming)
1502                 set_frame_rate(gspca_dev);
1503
1504         /* Return the actual framerate */
1505         tpf->numerator = 1;
1506         tpf->denominator = sd->frame_rate;
1507 }
1508
1509 /* sub-driver description */
1510 static const struct sd_desc sd_desc = {
1511         .name     = MODULE_NAME,
1512         .config   = sd_config,
1513         .init     = sd_init,
1514         .init_controls = sd_init_controls,
1515         .start    = sd_start,
1516         .stopN    = sd_stopN,
1517         .pkt_scan = sd_pkt_scan,
1518         .get_streamparm = sd_get_streamparm,
1519         .set_streamparm = sd_set_streamparm,
1520 };
1521
1522 /* -- module initialisation -- */
1523 static const struct usb_device_id device_table[] = {
1524         {USB_DEVICE(0x1415, 0x2000)},
1525         {USB_DEVICE(0x06f8, 0x3002)},
1526         {}
1527 };
1528
1529 MODULE_DEVICE_TABLE(usb, device_table);
1530
1531 /* -- device connect -- */
1532 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1533 {
1534         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1535                                 THIS_MODULE);
1536 }
1537
1538 static struct usb_driver sd_driver = {
1539         .name       = MODULE_NAME,
1540         .id_table   = device_table,
1541         .probe      = sd_probe,
1542         .disconnect = gspca_disconnect,
1543 #ifdef CONFIG_PM
1544         .suspend    = gspca_suspend,
1545         .resume     = gspca_resume,
1546         .reset_resume = gspca_resume,
1547 #endif
1548 };
1549
1550 module_usb_driver(sd_driver);