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         {320, 240, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
 107          .bytesperline = 320,
 108          .sizeimage = 320 * 240,
 109          .colorspace = V4L2_COLORSPACE_SRGB,
 110          .priv = 1},
 111         {640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
 112          .bytesperline = 640,
 113          .sizeimage = 640 * 480,
 114          .colorspace = V4L2_COLORSPACE_SRGB,
 115          .priv = 0},
 116 };
 117 static const struct v4l2_pix_format ov767x_mode[] = {
 118         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 119                 .bytesperline = 320,
 120                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 121                 .colorspace = V4L2_COLORSPACE_JPEG},
 122         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 123                 .bytesperline = 640,
 124                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 125                 .colorspace = V4L2_COLORSPACE_JPEG},
 126 };
 127
 128 static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30};
 129 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 130
 131 static const struct framerates ov772x_framerates[] = {
 132         { /* 320x240 */
 133                 .rates = qvga_rates,
 134                 .nrates = ARRAY_SIZE(qvga_rates),
 135         },
 136         { /* 640x480 */
 137                 .rates = vga_rates,
 138                 .nrates = ARRAY_SIZE(vga_rates),
 139         },
 140         { /* 320x240 SGBRG8 */
 141                 .rates = qvga_rates,
 142                 .nrates = ARRAY_SIZE(qvga_rates),
 143         },
 144         { /* 640x480 SGBRG8 */
 145                 .rates = vga_rates,
 146                 .nrates = ARRAY_SIZE(vga_rates),
 147         },
 148 };
 149
 150 struct reg_array {
 151         const u8 (*val)[2];
 152         int len;
 153 };
 154
 155 static const u8 bridge_init_767x[][2] = {
 156 /* comments from the ms-win file apollo7670.set */
 157 /* str1 */
 158         {0xf1, 0x42},
 159         {0x88, 0xf8},
 160         {0x89, 0xff},
 161         {0x76, 0x03},
 162         {0x92, 0x03},
 163         {0x95, 0x10},
 164         {0xe2, 0x00},
 165         {0xe7, 0x3e},
 166         {0x8d, 0x1c},
 167         {0x8e, 0x00},
 168         {0x8f, 0x00},
 169         {0x1f, 0x00},
 170         {0xc3, 0xf9},
 171         {0x89, 0xff},
 172         {0x88, 0xf8},
 173         {0x76, 0x03},
 174         {0x92, 0x01},
 175         {0x93, 0x18},
 176         {0x1c, 0x00},
 177         {0x1d, 0x48},
 178         {0x1d, 0x00},
 179         {0x1d, 0xff},
 180         {0x1d, 0x02},
 181         {0x1d, 0x58},
 182         {0x1d, 0x00},
 183         {0x1c, 0x0a},
 184         {0x1d, 0x0a},
 185         {0x1d, 0x0e},
 186         {0xc0, 0x50},   /* HSize 640 */
 187         {0xc1, 0x3c},   /* VSize 480 */
 188         {0x34, 0x05},   /* enable Audio Suspend mode */
 189         {0xc2, 0x0c},   /* Input YUV */
 190         {0xc3, 0xf9},   /* enable PRE */
 191         {0x34, 0x05},   /* enable Audio Suspend mode */
 192         {0xe7, 0x2e},   /* this solves failure of "SuspendResumeTest" */
 193         {0x31, 0xf9},   /* enable 1.8V Suspend */
 194         {0x35, 0x02},   /* turn on JPEG */
 195         {0xd9, 0x10},
 196         {0x25, 0x42},   /* GPIO[8]:Input */
 197         {0x94, 0x11},   /* If the default setting is loaded when
 198                          * system boots up, this flag is closed here */
 199 };
 200 static const u8 sensor_init_767x[][2] = {
 201         {0x12, 0x80},
 202         {0x11, 0x03},
 203         {0x3a, 0x04},
 204         {0x12, 0x00},
 205         {0x17, 0x13},
 206         {0x18, 0x01},
 207         {0x32, 0xb6},
 208         {0x19, 0x02},
 209         {0x1a, 0x7a},
 210         {0x03, 0x0a},
 211         {0x0c, 0x00},
 212         {0x3e, 0x00},
 213         {0x70, 0x3a},
 214         {0x71, 0x35},
 215         {0x72, 0x11},
 216         {0x73, 0xf0},
 217         {0xa2, 0x02},
 218         {0x7a, 0x2a},   /* set Gamma=1.6 below */
 219         {0x7b, 0x12},
 220         {0x7c, 0x1d},
 221         {0x7d, 0x2d},
 222         {0x7e, 0x45},
 223         {0x7f, 0x50},
 224         {0x80, 0x59},
 225         {0x81, 0x62},
 226         {0x82, 0x6b},
 227         {0x83, 0x73},
 228         {0x84, 0x7b},
 229         {0x85, 0x8a},
 230         {0x86, 0x98},
 231         {0x87, 0xb2},
 232         {0x88, 0xca},
 233         {0x89, 0xe0},
 234         {0x13, 0xe0},
 235         {0x00, 0x00},
 236         {0x10, 0x00},
 237         {0x0d, 0x40},
 238         {0x14, 0x38},   /* gain max 16x */
 239         {0xa5, 0x05},
 240         {0xab, 0x07},
 241         {0x24, 0x95},
 242         {0x25, 0x33},
 243         {0x26, 0xe3},
 244         {0x9f, 0x78},
 245         {0xa0, 0x68},
 246         {0xa1, 0x03},
 247         {0xa6, 0xd8},
 248         {0xa7, 0xd8},
 249         {0xa8, 0xf0},
 250         {0xa9, 0x90},
 251         {0xaa, 0x94},
 252         {0x13, 0xe5},
 253         {0x0e, 0x61},
 254         {0x0f, 0x4b},
 255         {0x16, 0x02},
 256         {0x21, 0x02},
 257         {0x22, 0x91},
 258         {0x29, 0x07},
 259         {0x33, 0x0b},
 260         {0x35, 0x0b},
 261         {0x37, 0x1d},
 262         {0x38, 0x71},
 263         {0x39, 0x2a},
 264         {0x3c, 0x78},
 265         {0x4d, 0x40},
 266         {0x4e, 0x20},
 267         {0x69, 0x00},
 268         {0x6b, 0x4a},
 269         {0x74, 0x10},
 270         {0x8d, 0x4f},
 271         {0x8e, 0x00},
 272         {0x8f, 0x00},
 273         {0x90, 0x00},
 274         {0x91, 0x00},
 275         {0x96, 0x00},
 276         {0x9a, 0x80},
 277         {0xb0, 0x84},
 278         {0xb1, 0x0c},
 279         {0xb2, 0x0e},
 280         {0xb3, 0x82},
 281         {0xb8, 0x0a},
 282         {0x43, 0x0a},
 283         {0x44, 0xf0},
 284         {0x45, 0x34},
 285         {0x46, 0x58},
 286         {0x47, 0x28},
 287         {0x48, 0x3a},
 288         {0x59, 0x88},
 289         {0x5a, 0x88},
 290         {0x5b, 0x44},
 291         {0x5c, 0x67},
 292         {0x5d, 0x49},
 293         {0x5e, 0x0e},
 294         {0x6c, 0x0a},
 295         {0x6d, 0x55},
 296         {0x6e, 0x11},
 297         {0x6f, 0x9f},
 298         {0x6a, 0x40},
 299         {0x01, 0x40},
 300         {0x02, 0x40},
 301         {0x13, 0xe7},
 302         {0x4f, 0x80},
 303         {0x50, 0x80},
 304         {0x51, 0x00},
 305         {0x52, 0x22},
 306         {0x53, 0x5e},
 307         {0x54, 0x80},
 308         {0x58, 0x9e},
 309         {0x41, 0x08},
 310         {0x3f, 0x00},
 311         {0x75, 0x04},
 312         {0x76, 0xe1},
 313         {0x4c, 0x00},
 314         {0x77, 0x01},
 315         {0x3d, 0xc2},
 316         {0x4b, 0x09},
 317         {0xc9, 0x60},
 318         {0x41, 0x38},   /* jfm: auto sharpness + auto de-noise  */
 319         {0x56, 0x40},
 320         {0x34, 0x11},
 321         {0x3b, 0xc2},
 322         {0xa4, 0x8a},   /* Night mode trigger point */
 323         {0x96, 0x00},
 324         {0x97, 0x30},
 325         {0x98, 0x20},
 326         {0x99, 0x20},
 327         {0x9a, 0x84},
 328         {0x9b, 0x29},
 329         {0x9c, 0x03},
 330         {0x9d, 0x4c},
 331         {0x9e, 0x3f},
 332         {0x78, 0x04},
 333         {0x79, 0x01},
 334         {0xc8, 0xf0},
 335         {0x79, 0x0f},
 336         {0xc8, 0x00},
 337         {0x79, 0x10},
 338         {0xc8, 0x7e},
 339         {0x79, 0x0a},
 340         {0xc8, 0x80},
 341         {0x79, 0x0b},
 342         {0xc8, 0x01},
 343         {0x79, 0x0c},
 344         {0xc8, 0x0f},
 345         {0x79, 0x0d},
 346         {0xc8, 0x20},
 347         {0x79, 0x09},
 348         {0xc8, 0x80},
 349         {0x79, 0x02},
 350         {0xc8, 0xc0},
 351         {0x79, 0x03},
 352         {0xc8, 0x20},
 353         {0x79, 0x26},
 354 };
 355 static const u8 bridge_start_vga_767x[][2] = {
 356 /* str59 JPG */
 357         {0x94, 0xaa},
 358         {0xf1, 0x42},
 359         {0xe5, 0x04},
 360         {0xc0, 0x50},
 361         {0xc1, 0x3c},
 362         {0xc2, 0x0c},
 363         {0x35, 0x02},   /* turn on JPEG */
 364         {0xd9, 0x10},
 365         {0xda, 0x00},   /* for higher clock rate(30fps) */
 366         {0x34, 0x05},   /* enable Audio Suspend mode */
 367         {0xc3, 0xf9},   /* enable PRE */
 368         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 369         {0x8d, 0x1c},   /* output YUV */
 370 /*      {0x34, 0x05},    * enable Audio Suspend mode (?) */
 371         {0x50, 0x00},   /* H/V divider=0 */
 372         {0x51, 0xa0},   /* input H=640/4 */
 373         {0x52, 0x3c},   /* input V=480/4 */
 374         {0x53, 0x00},   /* offset X=0 */
 375         {0x54, 0x00},   /* offset Y=0 */
 376         {0x55, 0x00},   /* H/V size[8]=0 */
 377         {0x57, 0x00},   /* H-size[9]=0 */
 378         {0x5c, 0x00},   /* output size[9:8]=0 */
 379         {0x5a, 0xa0},   /* output H=640/4 */
 380         {0x5b, 0x78},   /* output V=480/4 */
 381         {0x1c, 0x0a},
 382         {0x1d, 0x0a},
 383         {0x94, 0x11},
 384 };
 385 static const u8 sensor_start_vga_767x[][2] = {
 386         {0x11, 0x01},
 387         {0x1e, 0x04},
 388         {0x19, 0x02},
 389         {0x1a, 0x7a},
 390 };
 391 static const u8 bridge_start_qvga_767x[][2] = {
 392 /* str86 JPG */
 393         {0x94, 0xaa},
 394         {0xf1, 0x42},
 395         {0xe5, 0x04},
 396         {0xc0, 0x80},
 397         {0xc1, 0x60},
 398         {0xc2, 0x0c},
 399         {0x35, 0x02},   /* turn on JPEG */
 400         {0xd9, 0x10},
 401         {0xc0, 0x50},   /* CIF HSize 640 */
 402         {0xc1, 0x3c},   /* CIF VSize 480 */
 403         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 404         {0x8d, 0x1c},   /* output YUV */
 405         {0x34, 0x05},   /* enable Audio Suspend mode */
 406         {0xc2, 0x4c},   /* output YUV and Enable DCW */
 407         {0xc3, 0xf9},   /* enable PRE */
 408         {0x1c, 0x00},   /* indirect addressing */
 409         {0x1d, 0x48},   /* output YUV422 */
 410         {0x50, 0x89},   /* H/V divider=/2; plus DCW AVG */
 411         {0x51, 0xa0},   /* DCW input H=640/4 */
 412         {0x52, 0x78},   /* DCW input V=480/4 */
 413         {0x53, 0x00},   /* offset X=0 */
 414         {0x54, 0x00},   /* offset Y=0 */
 415         {0x55, 0x00},   /* H/V size[8]=0 */
 416         {0x57, 0x00},   /* H-size[9]=0 */
 417         {0x5c, 0x00},   /* DCW output size[9:8]=0 */
 418         {0x5a, 0x50},   /* DCW output H=320/4 */
 419         {0x5b, 0x3c},   /* DCW output V=240/4 */
 420         {0x1c, 0x0a},
 421         {0x1d, 0x0a},
 422         {0x94, 0x11},
 423 };
 424 static const u8 sensor_start_qvga_767x[][2] = {
 425         {0x11, 0x01},
 426         {0x1e, 0x04},
 427         {0x19, 0x02},
 428         {0x1a, 0x7a},
 429 };
 430
 431 static const u8 bridge_init_772x[][2] = {
 432         { 0x88, 0xf8 },
 433         { 0x89, 0xff },
 434         { 0x76, 0x03 },
 435         { 0x92, 0x01 },
 436         { 0x93, 0x18 },
 437         { 0x94, 0x10 },
 438         { 0x95, 0x10 },
 439         { 0xe2, 0x00 },
 440         { 0xe7, 0x3e },
 441
 442         { 0x96, 0x00 },
 443
 444         { 0x97, 0x20 },
 445         { 0x97, 0x20 },
 446         { 0x97, 0x20 },
 447         { 0x97, 0x0a },
 448         { 0x97, 0x3f },
 449         { 0x97, 0x4a },
 450         { 0x97, 0x20 },
 451         { 0x97, 0x15 },
 452         { 0x97, 0x0b },
 453
 454         { 0x8e, 0x40 },
 455         { 0x1f, 0x81 },
 456         { 0x34, 0x05 },
 457         { 0xe3, 0x04 },
 458         { 0x89, 0x00 },
 459         { 0x76, 0x00 },
 460         { 0xe7, 0x2e },
 461         { 0x31, 0xf9 },
 462         { 0x25, 0x42 },
 463         { 0x21, 0xf0 },
 464
 465         { 0x1c, 0x0a },
 466         { 0x1d, 0x08 }, /* turn on UVC header */
 467         { 0x1d, 0x0e }, /* .. */
 468 };
 469 static const u8 sensor_init_772x[][2] = {
 470         { 0x12, 0x80 },
 471         { 0x11, 0x01 },
 472 /*fixme: better have a delay?*/
 473         { 0x11, 0x01 },
 474         { 0x11, 0x01 },
 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
 484         { 0x3d, 0x03 },
 485         { 0x17, 0x26 },
 486         { 0x18, 0xa0 },
 487         { 0x19, 0x07 },
 488         { 0x1a, 0xf0 },
 489         { 0x32, 0x00 },
 490         { 0x29, 0xa0 },
 491         { 0x2c, 0xf0 },
 492         { 0x65, 0x20 },
 493         { 0x11, 0x01 },
 494         { 0x42, 0x7f },
 495         { 0x63, 0xaa },         /* AWB - was e0 */
 496         { 0x64, 0xff },
 497         { 0x66, 0x00 },
 498         { 0x13, 0xf0 },         /* com8 */
 499         { 0x0d, 0x41 },
 500         { 0x0f, 0xc5 },
 501         { 0x14, 0x11 },
 502
 503         { 0x22, 0x7f },
 504         { 0x23, 0x03 },
 505         { 0x24, 0x40 },
 506         { 0x25, 0x30 },
 507         { 0x26, 0xa1 },
 508         { 0x2a, 0x00 },
 509         { 0x2b, 0x00 },
 510         { 0x6b, 0xaa },
 511         { 0x13, 0xff },         /* AWB */
 512
 513         { 0x90, 0x05 },
 514         { 0x91, 0x01 },
 515         { 0x92, 0x03 },
 516         { 0x93, 0x00 },
 517         { 0x94, 0x60 },
 518         { 0x95, 0x3c },
 519         { 0x96, 0x24 },
 520         { 0x97, 0x1e },
 521         { 0x98, 0x62 },
 522         { 0x99, 0x80 },
 523         { 0x9a, 0x1e },
 524         { 0x9b, 0x08 },
 525         { 0x9c, 0x20 },
 526         { 0x9e, 0x81 },
 527
 528         { 0xa6, 0x07 },
 529         { 0x7e, 0x0c },
 530         { 0x7f, 0x16 },
 531         { 0x80, 0x2a },
 532         { 0x81, 0x4e },
 533         { 0x82, 0x61 },
 534         { 0x83, 0x6f },
 535         { 0x84, 0x7b },
 536         { 0x85, 0x86 },
 537         { 0x86, 0x8e },
 538         { 0x87, 0x97 },
 539         { 0x88, 0xa4 },
 540         { 0x89, 0xaf },
 541         { 0x8a, 0xc5 },
 542         { 0x8b, 0xd7 },
 543         { 0x8c, 0xe8 },
 544         { 0x8d, 0x20 },
 545
 546         { 0x2b, 0x00 },
 547         { 0x22, 0x7f },
 548         { 0x23, 0x03 },
 549         { 0x11, 0x01 },
 550         { 0x64, 0xff },
 551         { 0x0d, 0x41 },
 552
 553         { 0x14, 0x41 },
 554         { 0x0e, 0xcd },
 555         { 0xac, 0xbf },
 556         { 0x8e, 0x00 },         /* De-noise threshold */
 557 };
 558 static const u8 bridge_start_vga_yuyv_772x[][2] = {
 559         {0x88, 0x00},
 560         {0x1c, 0x00},
 561         {0x1d, 0x40},
 562         {0x1d, 0x02},
 563         {0x1d, 0x00},
 564         {0x1d, 0x02},
 565         {0x1d, 0x58},
 566         {0x1d, 0x00},
 567         {0x8d, 0x1c},
 568         {0x8e, 0x80},
 569         {0xc0, 0x50},
 570         {0xc1, 0x3c},
 571         {0xc2, 0x0c},
 572         {0xc3, 0x69},
 573 };
 574 static const u8 sensor_start_vga_yuyv_772x[][2] = {
 575         {0x12, 0x00},
 576         {0x17, 0x26},
 577         {0x18, 0xa0},
 578         {0x19, 0x07},
 579         {0x1a, 0xf0},
 580         {0x29, 0xa0},
 581         {0x2c, 0xf0},
 582         {0x65, 0x20},
 583         {0x67, 0x00},
 584 };
 585 static const u8 bridge_start_qvga_yuyv_772x[][2] = {
 586         {0x88, 0x00},
 587         {0x1c, 0x00},
 588         {0x1d, 0x40},
 589         {0x1d, 0x02},
 590         {0x1d, 0x00},
 591         {0x1d, 0x01},
 592         {0x1d, 0x4b},
 593         {0x1d, 0x00},
 594         {0x8d, 0x1c},
 595         {0x8e, 0x80},
 596         {0xc0, 0x28},
 597         {0xc1, 0x1e},
 598         {0xc2, 0x0c},
 599         {0xc3, 0x69},
 600 };
 601 static const u8 sensor_start_qvga_yuyv_772x[][2] = {
 602         {0x12, 0x40},
 603         {0x17, 0x3f},
 604         {0x18, 0x50},
 605         {0x19, 0x03},
 606         {0x1a, 0x78},
 607         {0x29, 0x50},
 608         {0x2c, 0x78},
 609         {0x65, 0x2f},
 610         {0x67, 0x00},
 611 };
 612 static const u8 bridge_start_vga_gbrg_772x[][2] = {
 613         {0x88, 0x08},
 614         {0x1c, 0x00},
 615         {0x1d, 0x00},
 616         {0x1d, 0x02},
 617         {0x1d, 0x00},
 618         {0x1d, 0x01},
 619         {0x1d, 0x2c},
 620         {0x1d, 0x00},
 621         {0x8d, 0x00},
 622         {0x8e, 0x00},
 623         {0xc0, 0x50},
 624         {0xc1, 0x3c},
 625         {0xc2, 0x01},
 626         {0xc3, 0x01},
 627 };
 628 static const u8 sensor_start_vga_gbrg_772x[][2] = {
 629         {0x12, 0x01},
 630         {0x17, 0x26},
 631         {0x18, 0xa0},
 632         {0x19, 0x07},
 633         {0x1a, 0xf0},
 634         {0x29, 0xa0},
 635         {0x2c, 0xf0},
 636         {0x65, 0x20},
 637         {0x67, 0x02},
 638 };
 639 static const u8 bridge_start_qvga_gbrg_772x[][2] = {
 640         {0x88, 0x08},
 641         {0x1c, 0x00},
 642         {0x1d, 0x00},
 643         {0x1d, 0x02},
 644         {0x1d, 0x00},
 645         {0x1d, 0x00},
 646         {0x1d, 0x4b},
 647         {0x1d, 0x00},
 648         {0x8d, 0x00},
 649         {0x8e, 0x00},
 650         {0xc0, 0x28},
 651         {0xc1, 0x1e},
 652         {0xc2, 0x01},
 653         {0xc3, 0x01},
 654 };
 655 static const u8 sensor_start_qvga_gbrg_772x[][2] = {
 656         {0x12, 0x41},
 657         {0x17, 0x3f},
 658         {0x18, 0x50},
 659         {0x19, 0x03},
 660         {0x1a, 0x78},
 661         {0x29, 0x50},
 662         {0x2c, 0x78},
 663         {0x65, 0x2f},
 664         {0x67, 0x02},
 665 };
 666
 667 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 668 {
 669         struct usb_device *udev = gspca_dev->dev;
 670         int ret;
 671
 672         if (gspca_dev->usb_err < 0)
 673                 return;
 674
 675         gspca_dbg(gspca_dev, D_USBO, "SET 01 0000 %04x %02x\n", reg, val);
 676         gspca_dev->usb_buf[0] = val;
 677         ret = usb_control_msg(udev,
 678                               usb_sndctrlpipe(udev, 0),
 679                               0x01,
 680                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 681                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 682         if (ret < 0) {
 683                 pr_err("write failed %d\n", ret);
 684                 gspca_dev->usb_err = ret;
 685         }
 686 }
 687
 688 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 689 {
 690         struct usb_device *udev = gspca_dev->dev;
 691         int ret;
 692
 693         if (gspca_dev->usb_err < 0)
 694                 return 0;
 695         ret = usb_control_msg(udev,
 696                               usb_rcvctrlpipe(udev, 0),
 697                               0x01,
 698                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 699                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 700         gspca_dbg(gspca_dev, D_USBI, "GET 01 0000 %04x %02x\n",
 701                   reg, gspca_dev->usb_buf[0]);
 702         if (ret < 0) {
 703                 pr_err("read failed %d\n", ret);
 704                 gspca_dev->usb_err = ret;
 705         }
 706         return gspca_dev->usb_buf[0];
 707 }
 708
 709 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 710  * (direction and output)? */
 711 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 712 {
 713         u8 data;
 714
 715         gspca_dbg(gspca_dev, D_CONF, "led status: %d\n", status);
 716
 717         data = ov534_reg_read(gspca_dev, 0x21);
 718         data |= 0x80;
 719         ov534_reg_write(gspca_dev, 0x21, data);
 720
 721         data = ov534_reg_read(gspca_dev, 0x23);
 722         if (status)
 723                 data |= 0x80;
 724         else
 725                 data &= ~0x80;
 726
 727         ov534_reg_write(gspca_dev, 0x23, data);
 728
 729         if (!status) {
 730                 data = ov534_reg_read(gspca_dev, 0x21);
 731                 data &= ~0x80;
 732                 ov534_reg_write(gspca_dev, 0x21, data);
 733         }
 734 }
 735
 736 static int sccb_check_status(struct gspca_dev *gspca_dev)
 737 {
 738         u8 data;
 739         int i;
 740
 741         for (i = 0; i < 5; i++) {
 742                 usleep_range(10000, 20000);
 743                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 744
 745                 switch (data) {
 746                 case 0x00:
 747                         return 1;
 748                 case 0x04:
 749                         return 0;
 750                 case 0x03:
 751                         break;
 752                 default:
 753                         gspca_err(gspca_dev, "sccb status 0x%02x, attempt %d/5\n",
 754                                   data, i + 1);
 755                 }
 756         }
 757         return 0;
 758 }
 759
 760 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 761 {
 762         gspca_dbg(gspca_dev, D_USBO, "sccb write: %02x %02x\n", reg, val);
 763         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 764         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 765         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 766
 767         if (!sccb_check_status(gspca_dev)) {
 768                 pr_err("sccb_reg_write failed\n");
 769                 gspca_dev->usb_err = -EIO;
 770         }
 771 }
 772
 773 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 774 {
 775         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 776         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 777         if (!sccb_check_status(gspca_dev))
 778                 pr_err("sccb_reg_read failed 1\n");
 779
 780         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 781         if (!sccb_check_status(gspca_dev))
 782                 pr_err("sccb_reg_read failed 2\n");
 783
 784         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 785 }
 786
 787 /* output a bridge sequence (reg - val) */
 788 static void reg_w_array(struct gspca_dev *gspca_dev,
 789                         const u8 (*data)[2], int len)
 790 {
 791         while (--len >= 0) {
 792                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 793                 data++;
 794         }
 795 }
 796
 797 /* output a sensor sequence (reg - val) */
 798 static void sccb_w_array(struct gspca_dev *gspca_dev,
 799                         const u8 (*data)[2], int len)
 800 {
 801         while (--len >= 0) {
 802                 if ((*data)[0] != 0xff) {
 803                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 804                 } else {
 805                         sccb_reg_read(gspca_dev, (*data)[1]);
 806                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 807                 }
 808                 data++;
 809         }
 810 }
 811
 812 /* ov772x specific controls */
 813 static void set_frame_rate(struct gspca_dev *gspca_dev)
 814 {
 815         struct sd *sd = (struct sd *) gspca_dev;
 816         int i;
 817         struct rate_s {
 818                 u8 fps;
 819                 u8 r11;
 820                 u8 r0d;
 821                 u8 re5;
 822         };
 823         const struct rate_s *r;
 824         static const struct rate_s rate_0[] = { /* 640x480 */
 825                 {60, 0x01, 0xc1, 0x04},
 826                 {50, 0x01, 0x41, 0x02},
 827                 {40, 0x02, 0xc1, 0x04},
 828                 {30, 0x04, 0x81, 0x02},
 829                 {15, 0x03, 0x41, 0x04},
 830         };
 831         static const struct rate_s rate_1[] = { /* 320x240 */
 832 /*              {205, 0x01, 0xc1, 0x02},  * 205 FPS: video is partly corrupt */
 833                 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
 834                 {150, 0x01, 0xc1, 0x04},
 835                 {137, 0x02, 0xc1, 0x02},
 836                 {125, 0x02, 0x81, 0x02},
 837                 {100, 0x02, 0xc1, 0x04},
 838                 {75, 0x03, 0xc1, 0x04},
 839                 {60, 0x04, 0xc1, 0x04},
 840                 {50, 0x02, 0x41, 0x04},
 841                 {37, 0x03, 0x41, 0x04},
 842                 {30, 0x04, 0x41, 0x04},
 843         };
 844
 845         if (sd->sensor != SENSOR_OV772x)
 846                 return;
 847         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 848                 r = rate_0;
 849                 i = ARRAY_SIZE(rate_0);
 850         } else {
 851                 r = rate_1;
 852                 i = ARRAY_SIZE(rate_1);
 853         }
 854         while (--i > 0) {
 855                 if (sd->frame_rate >= r->fps)
 856                         break;
 857                 r++;
 858         }
 859
 860         sccb_reg_write(gspca_dev, 0x11, r->r11);
 861         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 862         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 863
 864         gspca_dbg(gspca_dev, D_PROBE, "frame_rate: %d\n", r->fps);
 865 }
 866
 867 static void sethue(struct gspca_dev *gspca_dev, s32 val)
 868 {
 869         struct sd *sd = (struct sd *) gspca_dev;
 870
 871         if (sd->sensor == SENSOR_OV767x) {
 872                 /* TBD */
 873         } else {
 874                 s16 huesin;
 875                 s16 huecos;
 876
 877                 /* According to the datasheet the registers expect HUESIN and
 878                  * HUECOS to be the result of the trigonometric functions,
 879                  * scaled by 0x80.
 880                  *
 881                  * The 0x7fff here represents the maximum absolute value
 882                  * returned byt fixp_sin and fixp_cos, so the scaling will
 883                  * consider the result like in the interval [-1.0, 1.0].
 884                  */
 885                 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
 886                 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
 887
 888                 if (huesin < 0) {
 889                         sccb_reg_write(gspca_dev, 0xab,
 890                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
 891                         huesin = -huesin;
 892                 } else {
 893                         sccb_reg_write(gspca_dev, 0xab,
 894                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
 895
 896                 }
 897                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
 898                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
 899         }
 900 }
 901
 902 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
 903 {
 904         struct sd *sd = (struct sd *) gspca_dev;
 905
 906         if (sd->sensor == SENSOR_OV767x) {
 907                 int i;
 908                 static u8 color_tb[][6] = {
 909                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
 910                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
 911                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
 912                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
 913                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
 914                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
 915                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
 916                 };
 917
 918                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
 919                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
 920         } else {
 921                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
 922                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
 923         }
 924 }
 925
 926 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 927 {
 928         struct sd *sd = (struct sd *) gspca_dev;
 929
 930         if (sd->sensor == SENSOR_OV767x) {
 931                 if (val < 0)
 932                         val = 0x80 - val;
 933                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
 934         } else {
 935                 sccb_reg_write(gspca_dev, 0x9b, val);
 936         }
 937 }
 938
 939 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 940 {
 941         struct sd *sd = (struct sd *) gspca_dev;
 942
 943         if (sd->sensor == SENSOR_OV767x)
 944                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
 945         else
 946                 sccb_reg_write(gspca_dev, 0x9c, val);
 947 }
 948
 949 static void setgain(struct gspca_dev *gspca_dev, s32 val)
 950 {
 951         switch (val & 0x30) {
 952         case 0x00:
 953                 val &= 0x0f;
 954                 break;
 955         case 0x10:
 956                 val &= 0x0f;
 957                 val |= 0x30;
 958                 break;
 959         case 0x20:
 960                 val &= 0x0f;
 961                 val |= 0x70;
 962                 break;
 963         default:
 964 /*      case 0x30: */
 965                 val &= 0x0f;
 966                 val |= 0xf0;
 967                 break;
 968         }
 969         sccb_reg_write(gspca_dev, 0x00, val);
 970 }
 971
 972 static s32 getgain(struct gspca_dev *gspca_dev)
 973 {
 974         return sccb_reg_read(gspca_dev, 0x00);
 975 }
 976
 977 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 978 {
 979         struct sd *sd = (struct sd *) gspca_dev;
 980
 981         if (sd->sensor == SENSOR_OV767x) {
 982
 983                 /* set only aec[9:2] */
 984                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
 985         } else {
 986
 987                 /* 'val' is one byte and represents half of the exposure value
 988                  * we are going to set into registers, a two bytes value:
 989                  *
 990                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
 991                  *    LSB: ((u16) val << 1) & 0xff == val << 1
 992                  */
 993                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
 994                 sccb_reg_write(gspca_dev, 0x10, val << 1);
 995         }
 996 }
 997
 998 static s32 getexposure(struct gspca_dev *gspca_dev)
 999 {
1000         struct sd *sd = (struct sd *) gspca_dev;
1001
1002         if (sd->sensor == SENSOR_OV767x) {
1003                 /* get only aec[9:2] */
1004                 return sccb_reg_read(gspca_dev, 0x10);  /* aech */
1005         } else {
1006                 u8 hi = sccb_reg_read(gspca_dev, 0x08);
1007                 u8 lo = sccb_reg_read(gspca_dev, 0x10);
1008                 return (hi << 8 | lo) >> 1;
1009         }
1010 }
1011
1012 static void setagc(struct gspca_dev *gspca_dev, s32 val)
1013 {
1014         if (val) {
1015                 sccb_reg_write(gspca_dev, 0x13,
1016                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
1017                 sccb_reg_write(gspca_dev, 0x64,
1018                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
1019         } else {
1020                 sccb_reg_write(gspca_dev, 0x13,
1021                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
1022                 sccb_reg_write(gspca_dev, 0x64,
1023                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
1024         }
1025 }
1026
1027 static void setawb(struct gspca_dev *gspca_dev, s32 val)
1028 {
1029         struct sd *sd = (struct sd *) gspca_dev;
1030
1031         if (val) {
1032                 sccb_reg_write(gspca_dev, 0x13,
1033                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
1034                 if (sd->sensor == SENSOR_OV772x)
1035                         sccb_reg_write(gspca_dev, 0x63,
1036                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
1037         } else {
1038                 sccb_reg_write(gspca_dev, 0x13,
1039                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
1040                 if (sd->sensor == SENSOR_OV772x)
1041                         sccb_reg_write(gspca_dev, 0x63,
1042                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
1043         }
1044 }
1045
1046 static void setaec(struct gspca_dev *gspca_dev, s32 val)
1047 {
1048         struct sd *sd = (struct sd *) gspca_dev;
1049         u8 data;
1050
1051         data = sd->sensor == SENSOR_OV767x ?
1052                         0x05 :          /* agc + aec */
1053                         0x01;           /* agc */
1054         switch (val) {
1055         case V4L2_EXPOSURE_AUTO:
1056                 sccb_reg_write(gspca_dev, 0x13,
1057                                 sccb_reg_read(gspca_dev, 0x13) | data);
1058                 break;
1059         case V4L2_EXPOSURE_MANUAL:
1060                 sccb_reg_write(gspca_dev, 0x13,
1061                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1062                 break;
1063         }
1064 }
1065
1066 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1067 {
1068         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1069         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1070 }
1071
1072 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1073 {
1074         struct sd *sd = (struct sd *) gspca_dev;
1075         u8 val;
1076
1077         if (sd->sensor == SENSOR_OV767x) {
1078                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1079                 val &= ~0x30;
1080                 if (hflip)
1081                         val |= 0x20;
1082                 if (vflip)
1083                         val |= 0x10;
1084                 sccb_reg_write(gspca_dev, 0x1e, val);
1085         } else {
1086                 val = sccb_reg_read(gspca_dev, 0x0c);
1087                 val &= ~0xc0;
1088                 if (hflip == 0)
1089                         val |= 0x40;
1090                 if (vflip == 0)
1091                         val |= 0x80;
1092                 sccb_reg_write(gspca_dev, 0x0c, val);
1093         }
1094 }
1095
1096 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1097 {
1098         struct sd *sd = (struct sd *) gspca_dev;
1099
1100         val = val ? 0x9e : 0x00;
1101         if (sd->sensor == SENSOR_OV767x) {
1102                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1103                 if (val)
1104                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1105         }
1106         sccb_reg_write(gspca_dev, 0x2b, val);
1107 }
1108
1109
1110 /* this function is called at probe time */
1111 static int sd_config(struct gspca_dev *gspca_dev,
1112                      const struct usb_device_id *id)
1113 {
1114         struct sd *sd = (struct sd *) gspca_dev;
1115         struct cam *cam;
1116
1117         cam = &gspca_dev->cam;
1118
1119         cam->cam_mode = ov772x_mode;
1120         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1121
1122         sd->frame_rate = DEFAULT_FRAME_RATE;
1123
1124         return 0;
1125 }
1126
1127 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1128 {
1129         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1130         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1131
1132         switch (ctrl->id) {
1133         case V4L2_CID_AUTOGAIN:
1134                 gspca_dev->usb_err = 0;
1135                 if (ctrl->val && sd->gain && gspca_dev->streaming)
1136                         sd->gain->val = getgain(gspca_dev);
1137                 return gspca_dev->usb_err;
1138
1139         case V4L2_CID_EXPOSURE_AUTO:
1140                 gspca_dev->usb_err = 0;
1141                 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1142                     gspca_dev->streaming)
1143                         sd->exposure->val = getexposure(gspca_dev);
1144                 return gspca_dev->usb_err;
1145         }
1146         return -EINVAL;
1147 }
1148
1149 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1150 {
1151         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1152         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1153
1154         gspca_dev->usb_err = 0;
1155         if (!gspca_dev->streaming)
1156                 return 0;
1157
1158         switch (ctrl->id) {
1159         case V4L2_CID_HUE:
1160                 sethue(gspca_dev, ctrl->val);
1161                 break;
1162         case V4L2_CID_SATURATION:
1163                 setsaturation(gspca_dev, ctrl->val);
1164                 break;
1165         case V4L2_CID_BRIGHTNESS:
1166                 setbrightness(gspca_dev, ctrl->val);
1167                 break;
1168         case V4L2_CID_CONTRAST:
1169                 setcontrast(gspca_dev, ctrl->val);
1170                 break;
1171         case V4L2_CID_AUTOGAIN:
1172         /* case V4L2_CID_GAIN: */
1173                 setagc(gspca_dev, ctrl->val);
1174                 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1175                         setgain(gspca_dev, sd->gain->val);
1176                 break;
1177         case V4L2_CID_AUTO_WHITE_BALANCE:
1178                 setawb(gspca_dev, ctrl->val);
1179                 break;
1180         case V4L2_CID_EXPOSURE_AUTO:
1181         /* case V4L2_CID_EXPOSURE: */
1182                 setaec(gspca_dev, ctrl->val);
1183                 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1184                     sd->exposure)
1185                         setexposure(gspca_dev, sd->exposure->val);
1186                 break;
1187         case V4L2_CID_SHARPNESS:
1188                 setsharpness(gspca_dev, ctrl->val);
1189                 break;
1190         case V4L2_CID_HFLIP:
1191                 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1192                 break;
1193         case V4L2_CID_VFLIP:
1194                 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1195                 break;
1196         case V4L2_CID_POWER_LINE_FREQUENCY:
1197                 setlightfreq(gspca_dev, ctrl->val);
1198                 break;
1199         }
1200         return gspca_dev->usb_err;
1201 }
1202
1203 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1204         .g_volatile_ctrl = ov534_g_volatile_ctrl,
1205         .s_ctrl = ov534_s_ctrl,
1206 };
1207
1208 static int sd_init_controls(struct gspca_dev *gspca_dev)
1209 {
1210         struct sd *sd = (struct sd *) gspca_dev;
1211         struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1212         /* parameters with different values between the supported sensors */
1213         int saturation_min;
1214         int saturation_max;
1215         int saturation_def;
1216         int brightness_min;
1217         int brightness_max;
1218         int brightness_def;
1219         int contrast_max;
1220         int contrast_def;
1221         int exposure_min;
1222         int exposure_max;
1223         int exposure_def;
1224         int hflip_def;
1225
1226         if (sd->sensor == SENSOR_OV767x) {
1227                 saturation_min = 0,
1228                 saturation_max = 6,
1229                 saturation_def = 3,
1230                 brightness_min = -127;
1231                 brightness_max = 127;
1232                 brightness_def = 0;
1233                 contrast_max = 0x80;
1234                 contrast_def = 0x40;
1235                 exposure_min = 0x08;
1236                 exposure_max = 0x60;
1237                 exposure_def = 0x13;
1238                 hflip_def = 1;
1239         } else {
1240                 saturation_min = 0,
1241                 saturation_max = 255,
1242                 saturation_def = 64,
1243                 brightness_min = 0;
1244                 brightness_max = 255;
1245                 brightness_def = 0;
1246                 contrast_max = 255;
1247                 contrast_def = 32;
1248                 exposure_min = 0;
1249                 exposure_max = 255;
1250                 exposure_def = 120;
1251                 hflip_def = 0;
1252         }
1253
1254         gspca_dev->vdev.ctrl_handler = hdl;
1255
1256         v4l2_ctrl_handler_init(hdl, 13);
1257
1258         if (sd->sensor == SENSOR_OV772x)
1259                 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1260                                 V4L2_CID_HUE, -90, 90, 1, 0);
1261
1262         sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1263                         V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1264                         saturation_def);
1265         sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1266                         V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1267                         brightness_def);
1268         sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1269                         V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1270
1271         if (sd->sensor == SENSOR_OV772x) {
1272                 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1273                                 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1274                 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1275                                 V4L2_CID_GAIN, 0, 63, 1, 20);
1276         }
1277
1278         sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1279                         V4L2_CID_EXPOSURE_AUTO,
1280                         V4L2_EXPOSURE_MANUAL, 0,
1281                         V4L2_EXPOSURE_AUTO);
1282         sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1283                         V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1284                         exposure_def);
1285
1286         sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1287                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1288
1289         if (sd->sensor == SENSOR_OV772x)
1290                 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1291                                 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1292
1293         sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1294                         V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1295         sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1296                         V4L2_CID_VFLIP, 0, 1, 1, 0);
1297         sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1298                         V4L2_CID_POWER_LINE_FREQUENCY,
1299                         V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1300                         V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1301
1302         if (hdl->error) {
1303                 pr_err("Could not initialize controls\n");
1304                 return hdl->error;
1305         }
1306
1307         if (sd->sensor == SENSOR_OV772x)
1308                 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1309
1310         v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1311                                true);
1312
1313         return 0;
1314 }
1315
1316 /* this function is called at probe and resume time */
1317 static int sd_init(struct gspca_dev *gspca_dev)
1318 {
1319         struct sd *sd = (struct sd *) gspca_dev;
1320         u16 sensor_id;
1321         static const struct reg_array bridge_init[NSENSORS] = {
1322         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1323         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1324         };
1325         static const struct reg_array sensor_init[NSENSORS] = {
1326         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1327         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1328         };
1329
1330         /* reset bridge */
1331         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1332         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1333         msleep(100);
1334
1335         /* initialize the sensor address */
1336         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1337
1338         /* reset sensor */
1339         sccb_reg_write(gspca_dev, 0x12, 0x80);
1340         usleep_range(10000, 20000);
1341
1342         /* probe the sensor */
1343         sccb_reg_read(gspca_dev, 0x0a);
1344         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1345         sccb_reg_read(gspca_dev, 0x0b);
1346         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1347         gspca_dbg(gspca_dev, D_PROBE, "Sensor ID: %04x\n", sensor_id);
1348
1349         if ((sensor_id & 0xfff0) == 0x7670) {
1350                 sd->sensor = SENSOR_OV767x;
1351                 gspca_dev->cam.cam_mode = ov767x_mode;
1352                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1353         } else {
1354                 sd->sensor = SENSOR_OV772x;
1355                 gspca_dev->cam.bulk = 1;
1356                 gspca_dev->cam.bulk_size = 16384;
1357                 gspca_dev->cam.bulk_nurbs = 2;
1358                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1359         }
1360
1361         /* initialize */
1362         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1363                         bridge_init[sd->sensor].len);
1364         ov534_set_led(gspca_dev, 1);
1365         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1366                         sensor_init[sd->sensor].len);
1367
1368         sd_stopN(gspca_dev);
1369 /*      set_frame_rate(gspca_dev);      */
1370
1371         return gspca_dev->usb_err;
1372 }
1373
1374 static int sd_start(struct gspca_dev *gspca_dev)
1375 {
1376         struct sd *sd = (struct sd *) gspca_dev;
1377         int mode;
1378         static const struct reg_array bridge_start[NSENSORS][4] = {
1379         [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1380                                         ARRAY_SIZE(bridge_start_qvga_767x)},
1381                         {bridge_start_vga_767x,
1382                                         ARRAY_SIZE(bridge_start_vga_767x)}},
1383         [SENSOR_OV772x] = {{bridge_start_qvga_yuyv_772x,
1384                                 ARRAY_SIZE(bridge_start_qvga_yuyv_772x)},
1385                         {bridge_start_vga_yuyv_772x,
1386                                 ARRAY_SIZE(bridge_start_vga_yuyv_772x)},
1387                         {bridge_start_qvga_gbrg_772x,
1388                                 ARRAY_SIZE(bridge_start_qvga_gbrg_772x)},
1389                         {bridge_start_vga_gbrg_772x,
1390                                 ARRAY_SIZE(bridge_start_vga_gbrg_772x)} },
1391         };
1392         static const struct reg_array sensor_start[NSENSORS][4] = {
1393         [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1394                                         ARRAY_SIZE(sensor_start_qvga_767x)},
1395                         {sensor_start_vga_767x,
1396                                         ARRAY_SIZE(sensor_start_vga_767x)}},
1397         [SENSOR_OV772x] = {{sensor_start_qvga_yuyv_772x,
1398                                 ARRAY_SIZE(sensor_start_qvga_yuyv_772x)},
1399                         {sensor_start_vga_yuyv_772x,
1400                                 ARRAY_SIZE(sensor_start_vga_yuyv_772x)},
1401                         {sensor_start_qvga_gbrg_772x,
1402                                 ARRAY_SIZE(sensor_start_qvga_gbrg_772x)},
1403                         {sensor_start_vga_gbrg_772x,
1404                                 ARRAY_SIZE(sensor_start_vga_gbrg_772x)} },
1405         };
1406
1407         /* (from ms-win trace) */
1408         if (sd->sensor == SENSOR_OV767x)
1409                 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1410                                         /* black sun enable ? */
1411
1412         mode = gspca_dev->curr_mode;    /* 0: 320x240, 1: 640x480 */
1413         reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1414                                 bridge_start[sd->sensor][mode].len);
1415         sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1416                                 sensor_start[sd->sensor][mode].len);
1417
1418         set_frame_rate(gspca_dev);
1419
1420         if (sd->hue)
1421                 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1422         setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1423         if (sd->autogain)
1424                 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1425         setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1426         setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1427         if (sd->gain)
1428                 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1429         setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1430         setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1431         setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1432         if (sd->sharpness)
1433                 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1434         sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1435                   v4l2_ctrl_g_ctrl(sd->vflip));
1436         setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1437
1438         ov534_set_led(gspca_dev, 1);
1439         ov534_reg_write(gspca_dev, 0xe0, 0x00);
1440         return gspca_dev->usb_err;
1441 }
1442
1443 static void sd_stopN(struct gspca_dev *gspca_dev)
1444 {
1445         ov534_reg_write(gspca_dev, 0xe0, 0x09);
1446         ov534_set_led(gspca_dev, 0);
1447 }
1448
1449 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1450 #define UVC_STREAM_EOH  (1 << 7)
1451 #define UVC_STREAM_ERR  (1 << 6)
1452 #define UVC_STREAM_STI  (1 << 5)
1453 #define UVC_STREAM_RES  (1 << 4)
1454 #define UVC_STREAM_SCR  (1 << 3)
1455 #define UVC_STREAM_PTS  (1 << 2)
1456 #define UVC_STREAM_EOF  (1 << 1)
1457 #define UVC_STREAM_FID  (1 << 0)
1458
1459 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1460                         u8 *data, int len)
1461 {
1462         struct sd *sd = (struct sd *) gspca_dev;
1463         __u32 this_pts;
1464         u16 this_fid;
1465         int remaining_len = len;
1466         int payload_len;
1467
1468         payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1469         do {
1470                 len = min(remaining_len, payload_len);
1471
1472                 /* Payloads are prefixed with a UVC-style header.  We
1473                    consider a frame to start when the FID toggles, or the PTS
1474                    changes.  A frame ends when EOF is set, and we've received
1475                    the correct number of bytes. */
1476
1477                 /* Verify UVC header.  Header length is always 12 */
1478                 if (data[0] != 12 || len < 12) {
1479                         gspca_dbg(gspca_dev, D_PACK, "bad header\n");
1480                         goto discard;
1481                 }
1482
1483                 /* Check errors */
1484                 if (data[1] & UVC_STREAM_ERR) {
1485                         gspca_dbg(gspca_dev, D_PACK, "payload error\n");
1486                         goto discard;
1487                 }
1488
1489                 /* Extract PTS and FID */
1490                 if (!(data[1] & UVC_STREAM_PTS)) {
1491                         gspca_dbg(gspca_dev, D_PACK, "PTS not present\n");
1492                         goto discard;
1493                 }
1494                 this_pts = (data[5] << 24) | (data[4] << 16)
1495                                                 | (data[3] << 8) | data[2];
1496                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1497
1498                 /* If PTS or FID has changed, start a new frame. */
1499                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1500                         if (gspca_dev->last_packet_type == INTER_PACKET)
1501                                 gspca_frame_add(gspca_dev, LAST_PACKET,
1502                                                 NULL, 0);
1503                         sd->last_pts = this_pts;
1504                         sd->last_fid = this_fid;
1505                         gspca_frame_add(gspca_dev, FIRST_PACKET,
1506                                         data + 12, len - 12);
1507                 /* If this packet is marked as EOF, end the frame */
1508                 } else if (data[1] & UVC_STREAM_EOF) {
1509                         sd->last_pts = 0;
1510                         if (gspca_dev->pixfmt.pixelformat != V4L2_PIX_FMT_JPEG
1511                          && gspca_dev->image_len + len - 12 !=
1512                             gspca_dev->pixfmt.sizeimage) {
1513                                 gspca_dbg(gspca_dev, D_PACK, "wrong sized frame\n");
1514                                 goto discard;
1515                         }
1516                         gspca_frame_add(gspca_dev, LAST_PACKET,
1517                                         data + 12, len - 12);
1518                 } else {
1519
1520                         /* Add the data from this payload */
1521                         gspca_frame_add(gspca_dev, INTER_PACKET,
1522                                         data + 12, len - 12);
1523                 }
1524
1525                 /* Done this payload */
1526                 goto scan_next;
1527
1528 discard:
1529                 /* Discard data until a new frame starts. */
1530                 gspca_dev->last_packet_type = DISCARD_PACKET;
1531
1532 scan_next:
1533                 remaining_len -= len;
1534                 data += len;
1535         } while (remaining_len > 0);
1536 }
1537
1538 /* get stream parameters (framerate) */
1539 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1540                              struct v4l2_streamparm *parm)
1541 {
1542         struct v4l2_captureparm *cp = &parm->parm.capture;
1543         struct v4l2_fract *tpf = &cp->timeperframe;
1544         struct sd *sd = (struct sd *) gspca_dev;
1545
1546         tpf->numerator = 1;
1547         tpf->denominator = sd->frame_rate;
1548 }
1549
1550 /* set stream parameters (framerate) */
1551 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1552                              struct v4l2_streamparm *parm)
1553 {
1554         struct v4l2_captureparm *cp = &parm->parm.capture;
1555         struct v4l2_fract *tpf = &cp->timeperframe;
1556         struct sd *sd = (struct sd *) gspca_dev;
1557
1558         if (tpf->numerator == 0 || tpf->denominator == 0)
1559                 sd->frame_rate = DEFAULT_FRAME_RATE;
1560         else
1561                 sd->frame_rate = tpf->denominator / tpf->numerator;
1562
1563         if (gspca_dev->streaming)
1564                 set_frame_rate(gspca_dev);
1565
1566         /* Return the actual framerate */
1567         tpf->numerator = 1;
1568         tpf->denominator = sd->frame_rate;
1569 }
1570
1571 /* sub-driver description */
1572 static const struct sd_desc sd_desc = {
1573         .name     = MODULE_NAME,
1574         .config   = sd_config,
1575         .init     = sd_init,
1576         .init_controls = sd_init_controls,
1577         .start    = sd_start,
1578         .stopN    = sd_stopN,
1579         .pkt_scan = sd_pkt_scan,
1580         .get_streamparm = sd_get_streamparm,
1581         .set_streamparm = sd_set_streamparm,
1582 };
1583
1584 /* -- module initialisation -- */
1585 static const struct usb_device_id device_table[] = {
1586         {USB_DEVICE(0x1415, 0x2000)},
1587         {USB_DEVICE(0x06f8, 0x3002)},
1588         {}
1589 };
1590
1591 MODULE_DEVICE_TABLE(usb, device_table);
1592
1593 /* -- device connect -- */
1594 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1595 {
1596         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1597                                 THIS_MODULE);
1598 }
1599
1600 static struct usb_driver sd_driver = {
1601         .name       = MODULE_NAME,
1602         .id_table   = device_table,
1603         .probe      = sd_probe,
1604         .disconnect = gspca_disconnect,
1605 #ifdef CONFIG_PM
1606         .suspend    = gspca_suspend,
1607         .resume     = gspca_resume,
1608         .reset_resume = gspca_resume,
1609 #endif
1610 };
1611
1612 module_usb_driver(sd_driver);