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         return gspca_dev->usb_buf[0];
 646 }
 647
 648 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 649  * (direction and output)? */
 650 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 651 {
 652         u8 data;
 653
 654         PDEBUG(D_CONF, "led status: %d", status);
 655
 656         data = ov534_reg_read(gspca_dev, 0x21);
 657         data |= 0x80;
 658         ov534_reg_write(gspca_dev, 0x21, data);
 659
 660         data = ov534_reg_read(gspca_dev, 0x23);
 661         if (status)
 662                 data |= 0x80;
 663         else
 664                 data &= ~0x80;
 665
 666         ov534_reg_write(gspca_dev, 0x23, data);
 667
 668         if (!status) {
 669                 data = ov534_reg_read(gspca_dev, 0x21);
 670                 data &= ~0x80;
 671                 ov534_reg_write(gspca_dev, 0x21, data);
 672         }
 673 }
 674
 675 static int sccb_check_status(struct gspca_dev *gspca_dev)
 676 {
 677         u8 data;
 678         int i;
 679
 680         for (i = 0; i < 5; i++) {
 681                 msleep(10);
 682                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 683
 684                 switch (data) {
 685                 case 0x00:
 686                         return 1;
 687                 case 0x04:
 688                         return 0;
 689                 case 0x03:
 690                         break;
 691                 default:
 692                         PERR("sccb status 0x%02x, attempt %d/5",
 693                                data, i + 1);
 694                 }
 695         }
 696         return 0;
 697 }
 698
 699 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 700 {
 701         PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
 702         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 703         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 704         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 705
 706         if (!sccb_check_status(gspca_dev)) {
 707                 pr_err("sccb_reg_write failed\n");
 708                 gspca_dev->usb_err = -EIO;
 709         }
 710 }
 711
 712 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 713 {
 714         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 715         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 716         if (!sccb_check_status(gspca_dev))
 717                 pr_err("sccb_reg_read failed 1\n");
 718
 719         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 720         if (!sccb_check_status(gspca_dev))
 721                 pr_err("sccb_reg_read failed 2\n");
 722
 723         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 724 }
 725
 726 /* output a bridge sequence (reg - val) */
 727 static void reg_w_array(struct gspca_dev *gspca_dev,
 728                         const u8 (*data)[2], int len)
 729 {
 730         while (--len >= 0) {
 731                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 732                 data++;
 733         }
 734 }
 735
 736 /* output a sensor sequence (reg - val) */
 737 static void sccb_w_array(struct gspca_dev *gspca_dev,
 738                         const u8 (*data)[2], int len)
 739 {
 740         while (--len >= 0) {
 741                 if ((*data)[0] != 0xff) {
 742                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 743                 } else {
 744                         sccb_reg_read(gspca_dev, (*data)[1]);
 745                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 746                 }
 747                 data++;
 748         }
 749 }
 750
 751 /* ov772x specific controls */
 752 static void set_frame_rate(struct gspca_dev *gspca_dev)
 753 {
 754         struct sd *sd = (struct sd *) gspca_dev;
 755         int i;
 756         struct rate_s {
 757                 u8 fps;
 758                 u8 r11;
 759                 u8 r0d;
 760                 u8 re5;
 761         };
 762         const struct rate_s *r;
 763         static const struct rate_s rate_0[] = { /* 640x480 */
 764                 {60, 0x01, 0xc1, 0x04},
 765                 {50, 0x01, 0x41, 0x02},
 766                 {40, 0x02, 0xc1, 0x04},
 767                 {30, 0x04, 0x81, 0x02},
 768                 {15, 0x03, 0x41, 0x04},
 769         };
 770         static const struct rate_s rate_1[] = { /* 320x240 */
 771 /*              {205, 0x01, 0xc1, 0x02},  * 205 FPS: video is partly corrupt */
 772                 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
 773                 {150, 0x01, 0xc1, 0x04},
 774                 {137, 0x02, 0xc1, 0x02},
 775                 {125, 0x02, 0x81, 0x02},
 776                 {100, 0x02, 0xc1, 0x04},
 777                 {75, 0x03, 0xc1, 0x04},
 778                 {60, 0x04, 0xc1, 0x04},
 779                 {50, 0x02, 0x41, 0x04},
 780                 {37, 0x03, 0x41, 0x04},
 781                 {30, 0x04, 0x41, 0x04},
 782         };
 783
 784         if (sd->sensor != SENSOR_OV772x)
 785                 return;
 786         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 787                 r = rate_0;
 788                 i = ARRAY_SIZE(rate_0);
 789         } else {
 790                 r = rate_1;
 791                 i = ARRAY_SIZE(rate_1);
 792         }
 793         while (--i > 0) {
 794                 if (sd->frame_rate >= r->fps)
 795                         break;
 796                 r++;
 797         }
 798
 799         sccb_reg_write(gspca_dev, 0x11, r->r11);
 800         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 801         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 802
 803         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 804 }
 805
 806 static void sethue(struct gspca_dev *gspca_dev, s32 val)
 807 {
 808         struct sd *sd = (struct sd *) gspca_dev;
 809
 810         if (sd->sensor == SENSOR_OV767x) {
 811                 /* TBD */
 812         } else {
 813                 s16 huesin;
 814                 s16 huecos;
 815
 816                 /* According to the datasheet the registers expect HUESIN and
 817                  * HUECOS to be the result of the trigonometric functions,
 818                  * scaled by 0x80.
 819                  *
 820                  * The 0x7fff here represents the maximum absolute value
 821                  * returned byt fixp_sin and fixp_cos, so the scaling will
 822                  * consider the result like in the interval [-1.0, 1.0].
 823                  */
 824                 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
 825                 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
 826
 827                 if (huesin < 0) {
 828                         sccb_reg_write(gspca_dev, 0xab,
 829                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
 830                         huesin = -huesin;
 831                 } else {
 832                         sccb_reg_write(gspca_dev, 0xab,
 833                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
 834
 835                 }
 836                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
 837                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
 838         }
 839 }
 840
 841 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
 842 {
 843         struct sd *sd = (struct sd *) gspca_dev;
 844
 845         if (sd->sensor == SENSOR_OV767x) {
 846                 int i;
 847                 static u8 color_tb[][6] = {
 848                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
 849                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
 850                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
 851                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
 852                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
 853                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
 854                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
 855                 };
 856
 857                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
 858                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
 859         } else {
 860                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
 861                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
 862         }
 863 }
 864
 865 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 866 {
 867         struct sd *sd = (struct sd *) gspca_dev;
 868
 869         if (sd->sensor == SENSOR_OV767x) {
 870                 if (val < 0)
 871                         val = 0x80 - val;
 872                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
 873         } else {
 874                 sccb_reg_write(gspca_dev, 0x9b, val);
 875         }
 876 }
 877
 878 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 879 {
 880         struct sd *sd = (struct sd *) gspca_dev;
 881
 882         if (sd->sensor == SENSOR_OV767x)
 883                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
 884         else
 885                 sccb_reg_write(gspca_dev, 0x9c, val);
 886 }
 887
 888 static void setgain(struct gspca_dev *gspca_dev, s32 val)
 889 {
 890         switch (val & 0x30) {
 891         case 0x00:
 892                 val &= 0x0f;
 893                 break;
 894         case 0x10:
 895                 val &= 0x0f;
 896                 val |= 0x30;
 897                 break;
 898         case 0x20:
 899                 val &= 0x0f;
 900                 val |= 0x70;
 901                 break;
 902         default:
 903 /*      case 0x30: */
 904                 val &= 0x0f;
 905                 val |= 0xf0;
 906                 break;
 907         }
 908         sccb_reg_write(gspca_dev, 0x00, val);
 909 }
 910
 911 static s32 getgain(struct gspca_dev *gspca_dev)
 912 {
 913         return sccb_reg_read(gspca_dev, 0x00);
 914 }
 915
 916 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 917 {
 918         struct sd *sd = (struct sd *) gspca_dev;
 919
 920         if (sd->sensor == SENSOR_OV767x) {
 921
 922                 /* set only aec[9:2] */
 923                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
 924         } else {
 925
 926                 /* 'val' is one byte and represents half of the exposure value
 927                  * we are going to set into registers, a two bytes value:
 928                  *
 929                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
 930                  *    LSB: ((u16) val << 1) & 0xff == val << 1
 931                  */
 932                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
 933                 sccb_reg_write(gspca_dev, 0x10, val << 1);
 934         }
 935 }
 936
 937 static s32 getexposure(struct gspca_dev *gspca_dev)
 938 {
 939         struct sd *sd = (struct sd *) gspca_dev;
 940
 941         if (sd->sensor == SENSOR_OV767x) {
 942                 /* get only aec[9:2] */
 943                 return sccb_reg_read(gspca_dev, 0x10);  /* aech */
 944         } else {
 945                 u8 hi = sccb_reg_read(gspca_dev, 0x08);
 946                 u8 lo = sccb_reg_read(gspca_dev, 0x10);
 947                 return (hi << 8 | lo) >> 1;
 948         }
 949 }
 950
 951 static void setagc(struct gspca_dev *gspca_dev, s32 val)
 952 {
 953         if (val) {
 954                 sccb_reg_write(gspca_dev, 0x13,
 955                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
 956                 sccb_reg_write(gspca_dev, 0x64,
 957                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
 958         } else {
 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         }
 964 }
 965
 966 static void setawb(struct gspca_dev *gspca_dev, s32 val)
 967 {
 968         struct sd *sd = (struct sd *) gspca_dev;
 969
 970         if (val) {
 971                 sccb_reg_write(gspca_dev, 0x13,
 972                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
 973                 if (sd->sensor == SENSOR_OV772x)
 974                         sccb_reg_write(gspca_dev, 0x63,
 975                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
 976         } else {
 977                 sccb_reg_write(gspca_dev, 0x13,
 978                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
 979                 if (sd->sensor == SENSOR_OV772x)
 980                         sccb_reg_write(gspca_dev, 0x63,
 981                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
 982         }
 983 }
 984
 985 static void setaec(struct gspca_dev *gspca_dev, s32 val)
 986 {
 987         struct sd *sd = (struct sd *) gspca_dev;
 988         u8 data;
 989
 990         data = sd->sensor == SENSOR_OV767x ?
 991                         0x05 :          /* agc + aec */
 992                         0x01;           /* agc */
 993         switch (val) {
 994         case V4L2_EXPOSURE_AUTO:
 995                 sccb_reg_write(gspca_dev, 0x13,
 996                                 sccb_reg_read(gspca_dev, 0x13) | data);
 997                 break;
 998         case V4L2_EXPOSURE_MANUAL:
 999                 sccb_reg_write(gspca_dev, 0x13,
1000                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1001                 break;
1002         }
1003 }
1004
1005 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1006 {
1007         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1008         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1009 }
1010
1011 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1012 {
1013         struct sd *sd = (struct sd *) gspca_dev;
1014         u8 val;
1015
1016         if (sd->sensor == SENSOR_OV767x) {
1017                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1018                 val &= ~0x30;
1019                 if (hflip)
1020                         val |= 0x20;
1021                 if (vflip)
1022                         val |= 0x10;
1023                 sccb_reg_write(gspca_dev, 0x1e, val);
1024         } else {
1025                 val = sccb_reg_read(gspca_dev, 0x0c);
1026                 val &= ~0xc0;
1027                 if (hflip == 0)
1028                         val |= 0x40;
1029                 if (vflip == 0)
1030                         val |= 0x80;
1031                 sccb_reg_write(gspca_dev, 0x0c, val);
1032         }
1033 }
1034
1035 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1036 {
1037         struct sd *sd = (struct sd *) gspca_dev;
1038
1039         val = val ? 0x9e : 0x00;
1040         if (sd->sensor == SENSOR_OV767x) {
1041                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1042                 if (val)
1043                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1044         }
1045         sccb_reg_write(gspca_dev, 0x2b, val);
1046 }
1047
1048
1049 /* this function is called at probe time */
1050 static int sd_config(struct gspca_dev *gspca_dev,
1051                      const struct usb_device_id *id)
1052 {
1053         struct sd *sd = (struct sd *) gspca_dev;
1054         struct cam *cam;
1055
1056         cam = &gspca_dev->cam;
1057
1058         cam->cam_mode = ov772x_mode;
1059         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1060
1061         sd->frame_rate = DEFAULT_FRAME_RATE;
1062
1063         return 0;
1064 }
1065
1066 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1067 {
1068         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1069         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1070
1071         switch (ctrl->id) {
1072         case V4L2_CID_AUTOGAIN:
1073                 gspca_dev->usb_err = 0;
1074                 if (ctrl->val && sd->gain && gspca_dev->streaming)
1075                         sd->gain->val = getgain(gspca_dev);
1076                 return gspca_dev->usb_err;
1077
1078         case V4L2_CID_EXPOSURE_AUTO:
1079                 gspca_dev->usb_err = 0;
1080                 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1081                     gspca_dev->streaming)
1082                         sd->exposure->val = getexposure(gspca_dev);
1083                 return gspca_dev->usb_err;
1084         }
1085         return -EINVAL;
1086 }
1087
1088 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1089 {
1090         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1091         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1092
1093         gspca_dev->usb_err = 0;
1094         if (!gspca_dev->streaming)
1095                 return 0;
1096
1097         switch (ctrl->id) {
1098         case V4L2_CID_HUE:
1099                 sethue(gspca_dev, ctrl->val);
1100                 break;
1101         case V4L2_CID_SATURATION:
1102                 setsaturation(gspca_dev, ctrl->val);
1103                 break;
1104         case V4L2_CID_BRIGHTNESS:
1105                 setbrightness(gspca_dev, ctrl->val);
1106                 break;
1107         case V4L2_CID_CONTRAST:
1108                 setcontrast(gspca_dev, ctrl->val);
1109                 break;
1110         case V4L2_CID_AUTOGAIN:
1111         /* case V4L2_CID_GAIN: */
1112                 setagc(gspca_dev, ctrl->val);
1113                 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1114                         setgain(gspca_dev, sd->gain->val);
1115                 break;
1116         case V4L2_CID_AUTO_WHITE_BALANCE:
1117                 setawb(gspca_dev, ctrl->val);
1118                 break;
1119         case V4L2_CID_EXPOSURE_AUTO:
1120         /* case V4L2_CID_EXPOSURE: */
1121                 setaec(gspca_dev, ctrl->val);
1122                 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1123                     sd->exposure)
1124                         setexposure(gspca_dev, sd->exposure->val);
1125                 break;
1126         case V4L2_CID_SHARPNESS:
1127                 setsharpness(gspca_dev, ctrl->val);
1128                 break;
1129         case V4L2_CID_HFLIP:
1130                 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1131                 break;
1132         case V4L2_CID_VFLIP:
1133                 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1134                 break;
1135         case V4L2_CID_POWER_LINE_FREQUENCY:
1136                 setlightfreq(gspca_dev, ctrl->val);
1137                 break;
1138         }
1139         return gspca_dev->usb_err;
1140 }
1141
1142 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1143         .g_volatile_ctrl = ov534_g_volatile_ctrl,
1144         .s_ctrl = ov534_s_ctrl,
1145 };
1146
1147 static int sd_init_controls(struct gspca_dev *gspca_dev)
1148 {
1149         struct sd *sd = (struct sd *) gspca_dev;
1150         struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1151         /* parameters with different values between the supported sensors */
1152         int saturation_min;
1153         int saturation_max;
1154         int saturation_def;
1155         int brightness_min;
1156         int brightness_max;
1157         int brightness_def;
1158         int contrast_max;
1159         int contrast_def;
1160         int exposure_min;
1161         int exposure_max;
1162         int exposure_def;
1163         int hflip_def;
1164
1165         if (sd->sensor == SENSOR_OV767x) {
1166                 saturation_min = 0,
1167                 saturation_max = 6,
1168                 saturation_def = 3,
1169                 brightness_min = -127;
1170                 brightness_max = 127;
1171                 brightness_def = 0;
1172                 contrast_max = 0x80;
1173                 contrast_def = 0x40;
1174                 exposure_min = 0x08;
1175                 exposure_max = 0x60;
1176                 exposure_def = 0x13;
1177                 hflip_def = 1;
1178         } else {
1179                 saturation_min = 0,
1180                 saturation_max = 255,
1181                 saturation_def = 64,
1182                 brightness_min = 0;
1183                 brightness_max = 255;
1184                 brightness_def = 0;
1185                 contrast_max = 255;
1186                 contrast_def = 32;
1187                 exposure_min = 0;
1188                 exposure_max = 255;
1189                 exposure_def = 120;
1190                 hflip_def = 0;
1191         }
1192
1193         gspca_dev->vdev.ctrl_handler = hdl;
1194
1195         v4l2_ctrl_handler_init(hdl, 13);
1196
1197         if (sd->sensor == SENSOR_OV772x)
1198                 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1199                                 V4L2_CID_HUE, -90, 90, 1, 0);
1200
1201         sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1202                         V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1203                         saturation_def);
1204         sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1205                         V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1206                         brightness_def);
1207         sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1208                         V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1209
1210         if (sd->sensor == SENSOR_OV772x) {
1211                 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1212                                 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1213                 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1214                                 V4L2_CID_GAIN, 0, 63, 1, 20);
1215         }
1216
1217         sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1218                         V4L2_CID_EXPOSURE_AUTO,
1219                         V4L2_EXPOSURE_MANUAL, 0,
1220                         V4L2_EXPOSURE_AUTO);
1221         sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1222                         V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1223                         exposure_def);
1224
1225         sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1226                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1227
1228         if (sd->sensor == SENSOR_OV772x)
1229                 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1230                                 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1231
1232         sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1233                         V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1234         sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1235                         V4L2_CID_VFLIP, 0, 1, 1, 0);
1236         sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1237                         V4L2_CID_POWER_LINE_FREQUENCY,
1238                         V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1239                         V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1240
1241         if (hdl->error) {
1242                 pr_err("Could not initialize controls\n");
1243                 return hdl->error;
1244         }
1245
1246         if (sd->sensor == SENSOR_OV772x)
1247                 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1248
1249         v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1250                                true);
1251
1252         return 0;
1253 }
1254
1255 /* this function is called at probe and resume time */
1256 static int sd_init(struct gspca_dev *gspca_dev)
1257 {
1258         struct sd *sd = (struct sd *) gspca_dev;
1259         u16 sensor_id;
1260         static const struct reg_array bridge_init[NSENSORS] = {
1261         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1262         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1263         };
1264         static const struct reg_array sensor_init[NSENSORS] = {
1265         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1266         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1267         };
1268
1269         /* reset bridge */
1270         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1271         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1272         msleep(100);
1273
1274         /* initialize the sensor address */
1275         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1276
1277         /* reset sensor */
1278         sccb_reg_write(gspca_dev, 0x12, 0x80);
1279         msleep(10);
1280
1281         /* probe the sensor */
1282         sccb_reg_read(gspca_dev, 0x0a);
1283         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1284         sccb_reg_read(gspca_dev, 0x0b);
1285         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1286         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1287
1288         if ((sensor_id & 0xfff0) == 0x7670) {
1289                 sd->sensor = SENSOR_OV767x;
1290                 gspca_dev->cam.cam_mode = ov767x_mode;
1291                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1292         } else {
1293                 sd->sensor = SENSOR_OV772x;
1294                 gspca_dev->cam.bulk = 1;
1295                 gspca_dev->cam.bulk_size = 16384;
1296                 gspca_dev->cam.bulk_nurbs = 2;
1297                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1298         }
1299
1300         /* initialize */
1301         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1302                         bridge_init[sd->sensor].len);
1303         ov534_set_led(gspca_dev, 1);
1304         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1305                         sensor_init[sd->sensor].len);
1306
1307         sd_stopN(gspca_dev);
1308 /*      set_frame_rate(gspca_dev);      */
1309
1310         return gspca_dev->usb_err;
1311 }
1312
1313 static int sd_start(struct gspca_dev *gspca_dev)
1314 {
1315         struct sd *sd = (struct sd *) gspca_dev;
1316         int mode;
1317         static const struct reg_array bridge_start[NSENSORS][2] = {
1318         [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1319                                         ARRAY_SIZE(bridge_start_qvga_767x)},
1320                         {bridge_start_vga_767x,
1321                                         ARRAY_SIZE(bridge_start_vga_767x)}},
1322         [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1323                                         ARRAY_SIZE(bridge_start_qvga_772x)},
1324                         {bridge_start_vga_772x,
1325                                         ARRAY_SIZE(bridge_start_vga_772x)}},
1326         };
1327         static const struct reg_array sensor_start[NSENSORS][2] = {
1328         [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1329                                         ARRAY_SIZE(sensor_start_qvga_767x)},
1330                         {sensor_start_vga_767x,
1331                                         ARRAY_SIZE(sensor_start_vga_767x)}},
1332         [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1333                                         ARRAY_SIZE(sensor_start_qvga_772x)},
1334                         {sensor_start_vga_772x,
1335                                         ARRAY_SIZE(sensor_start_vga_772x)}},
1336         };
1337
1338         /* (from ms-win trace) */
1339         if (sd->sensor == SENSOR_OV767x)
1340                 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1341                                         /* black sun enable ? */
1342
1343         mode = gspca_dev->curr_mode;    /* 0: 320x240, 1: 640x480 */
1344         reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1345                                 bridge_start[sd->sensor][mode].len);
1346         sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1347                                 sensor_start[sd->sensor][mode].len);
1348
1349         set_frame_rate(gspca_dev);
1350
1351         if (sd->hue)
1352                 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1353         setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1354         if (sd->autogain)
1355                 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1356         setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1357         setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1358         if (sd->gain)
1359                 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1360         setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1361         setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1362         setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1363         if (sd->sharpness)
1364                 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1365         sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1366                   v4l2_ctrl_g_ctrl(sd->vflip));
1367         setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1368
1369         ov534_set_led(gspca_dev, 1);
1370         ov534_reg_write(gspca_dev, 0xe0, 0x00);
1371         return gspca_dev->usb_err;
1372 }
1373
1374 static void sd_stopN(struct gspca_dev *gspca_dev)
1375 {
1376         ov534_reg_write(gspca_dev, 0xe0, 0x09);
1377         ov534_set_led(gspca_dev, 0);
1378 }
1379
1380 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1381 #define UVC_STREAM_EOH  (1 << 7)
1382 #define UVC_STREAM_ERR  (1 << 6)
1383 #define UVC_STREAM_STI  (1 << 5)
1384 #define UVC_STREAM_RES  (1 << 4)
1385 #define UVC_STREAM_SCR  (1 << 3)
1386 #define UVC_STREAM_PTS  (1 << 2)
1387 #define UVC_STREAM_EOF  (1 << 1)
1388 #define UVC_STREAM_FID  (1 << 0)
1389
1390 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1391                         u8 *data, int len)
1392 {
1393         struct sd *sd = (struct sd *) gspca_dev;
1394         __u32 this_pts;
1395         u16 this_fid;
1396         int remaining_len = len;
1397         int payload_len;
1398
1399         payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1400         do {
1401                 len = min(remaining_len, payload_len);
1402
1403                 /* Payloads are prefixed with a UVC-style header.  We
1404                    consider a frame to start when the FID toggles, or the PTS
1405                    changes.  A frame ends when EOF is set, and we've received
1406                    the correct number of bytes. */
1407
1408                 /* Verify UVC header.  Header length is always 12 */
1409                 if (data[0] != 12 || len < 12) {
1410                         PDEBUG(D_PACK, "bad header");
1411                         goto discard;
1412                 }
1413
1414                 /* Check errors */
1415                 if (data[1] & UVC_STREAM_ERR) {
1416                         PDEBUG(D_PACK, "payload error");
1417                         goto discard;
1418                 }
1419
1420                 /* Extract PTS and FID */
1421                 if (!(data[1] & UVC_STREAM_PTS)) {
1422                         PDEBUG(D_PACK, "PTS not present");
1423                         goto discard;
1424                 }
1425                 this_pts = (data[5] << 24) | (data[4] << 16)
1426                                                 | (data[3] << 8) | data[2];
1427                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1428
1429                 /* If PTS or FID has changed, start a new frame. */
1430                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1431                         if (gspca_dev->last_packet_type == INTER_PACKET)
1432                                 gspca_frame_add(gspca_dev, LAST_PACKET,
1433                                                 NULL, 0);
1434                         sd->last_pts = this_pts;
1435                         sd->last_fid = this_fid;
1436                         gspca_frame_add(gspca_dev, FIRST_PACKET,
1437                                         data + 12, len - 12);
1438                 /* If this packet is marked as EOF, end the frame */
1439                 } else if (data[1] & UVC_STREAM_EOF) {
1440                         sd->last_pts = 0;
1441                         if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
1442                          && gspca_dev->image_len + len - 12 !=
1443                                    gspca_dev->pixfmt.width *
1444                                         gspca_dev->pixfmt.height * 2) {
1445                                 PDEBUG(D_PACK, "wrong sized frame");
1446                                 goto discard;
1447                         }
1448                         gspca_frame_add(gspca_dev, LAST_PACKET,
1449                                         data + 12, len - 12);
1450                 } else {
1451
1452                         /* Add the data from this payload */
1453                         gspca_frame_add(gspca_dev, INTER_PACKET,
1454                                         data + 12, len - 12);
1455                 }
1456
1457                 /* Done this payload */
1458                 goto scan_next;
1459
1460 discard:
1461                 /* Discard data until a new frame starts. */
1462                 gspca_dev->last_packet_type = DISCARD_PACKET;
1463
1464 scan_next:
1465                 remaining_len -= len;
1466                 data += len;
1467         } while (remaining_len > 0);
1468 }
1469
1470 /* get stream parameters (framerate) */
1471 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1472                              struct v4l2_streamparm *parm)
1473 {
1474         struct v4l2_captureparm *cp = &parm->parm.capture;
1475         struct v4l2_fract *tpf = &cp->timeperframe;
1476         struct sd *sd = (struct sd *) gspca_dev;
1477
1478         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1479         tpf->numerator = 1;
1480         tpf->denominator = sd->frame_rate;
1481 }
1482
1483 /* set stream parameters (framerate) */
1484 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1485                              struct v4l2_streamparm *parm)
1486 {
1487         struct v4l2_captureparm *cp = &parm->parm.capture;
1488         struct v4l2_fract *tpf = &cp->timeperframe;
1489         struct sd *sd = (struct sd *) gspca_dev;
1490
1491         if (tpf->numerator == 0 || tpf->denominator == 0)
1492                 sd->frame_rate = DEFAULT_FRAME_RATE;
1493         else
1494                 sd->frame_rate = tpf->denominator / tpf->numerator;
1495
1496         if (gspca_dev->streaming)
1497                 set_frame_rate(gspca_dev);
1498
1499         /* Return the actual framerate */
1500         tpf->numerator = 1;
1501         tpf->denominator = sd->frame_rate;
1502 }
1503
1504 /* sub-driver description */
1505 static const struct sd_desc sd_desc = {
1506         .name     = MODULE_NAME,
1507         .config   = sd_config,
1508         .init     = sd_init,
1509         .init_controls = sd_init_controls,
1510         .start    = sd_start,
1511         .stopN    = sd_stopN,
1512         .pkt_scan = sd_pkt_scan,
1513         .get_streamparm = sd_get_streamparm,
1514         .set_streamparm = sd_set_streamparm,
1515 };
1516
1517 /* -- module initialisation -- */
1518 static const struct usb_device_id device_table[] = {
1519         {USB_DEVICE(0x1415, 0x2000)},
1520         {USB_DEVICE(0x06f8, 0x3002)},
1521         {}
1522 };
1523
1524 MODULE_DEVICE_TABLE(usb, device_table);
1525
1526 /* -- device connect -- */
1527 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1528 {
1529         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1530                                 THIS_MODULE);
1531 }
1532
1533 static struct usb_driver sd_driver = {
1534         .name       = MODULE_NAME,
1535         .id_table   = device_table,
1536         .probe      = sd_probe,
1537         .disconnect = gspca_disconnect,
1538 #ifdef CONFIG_PM
1539         .suspend    = gspca_suspend,
1540         .resume     = gspca_resume,
1541         .reset_resume = gspca_resume,
1542 #endif
1543 };
1544
1545 module_usb_driver(sd_driver);