kernel/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  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  31  */
  32
  33 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  34
  35 #define MODULE_NAME "ov534"
  36
  37 #include "gspca.h"
  38
  39 #include <linux/fixp-arith.h>
  40 #include <media/v4l2-ctrls.h>
  41
  42 #define OV534_REG_ADDRESS       0xf1    /* sensor address */
  43 #define OV534_REG_SUBADDR       0xf2
  44 #define OV534_REG_WRITE         0xf3
  45 #define OV534_REG_READ          0xf4
  46 #define OV534_REG_OPERATION     0xf5
  47 #define OV534_REG_STATUS        0xf6
  48
  49 #define OV534_OP_WRITE_3        0x37
  50 #define OV534_OP_WRITE_2        0x33
  51 #define OV534_OP_READ_2         0xf9
  52
  53 #define CTRL_TIMEOUT 500
  54
  55 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
  56 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
  57 MODULE_LICENSE("GPL");
  58
  59 /* specific webcam descriptor */
  60 struct sd {
  61         struct gspca_dev gspca_dev;     /* !! must be the first item */
  62
  63         struct v4l2_ctrl_handler ctrl_handler;
  64         struct v4l2_ctrl *hue;
  65         struct v4l2_ctrl *saturation;
  66         struct v4l2_ctrl *brightness;
  67         struct v4l2_ctrl *contrast;
  68         struct { /* gain control cluster */
  69                 struct v4l2_ctrl *autogain;
  70                 struct v4l2_ctrl *gain;
  71         };
  72         struct v4l2_ctrl *autowhitebalance;
  73         struct { /* exposure control cluster */
  74                 struct v4l2_ctrl *autoexposure;
  75                 struct v4l2_ctrl *exposure;
  76         };
  77         struct v4l2_ctrl *sharpness;
  78         struct v4l2_ctrl *hflip;
  79         struct v4l2_ctrl *vflip;
  80         struct v4l2_ctrl *plfreq;
  81
  82         __u32 last_pts;
  83         u16 last_fid;
  84         u8 frame_rate;
  85
  86         u8 sensor;
  87 };
  88 enum sensors {
  89         SENSOR_OV767x,
  90         SENSOR_OV772x,
  91         NSENSORS
  92 };
  93
  94 static int sd_start(struct gspca_dev *gspca_dev);
  95 static void sd_stopN(struct gspca_dev *gspca_dev);
  96
  97
  98 static const struct v4l2_pix_format ov772x_mode[] = {
  99         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 100          .bytesperline = 320 * 2,
 101          .sizeimage = 320 * 240 * 2,
 102          .colorspace = V4L2_COLORSPACE_SRGB,
 103          .priv = 1},
 104         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 105          .bytesperline = 640 * 2,
 106          .sizeimage = 640 * 480 * 2,
 107          .colorspace = V4L2_COLORSPACE_SRGB,
 108          .priv = 0},
 109 };
 110 static const struct v4l2_pix_format ov767x_mode[] = {
 111         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 112                 .bytesperline = 320,
 113                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 114                 .colorspace = V4L2_COLORSPACE_JPEG},
 115         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 116                 .bytesperline = 640,
 117                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 118                 .colorspace = V4L2_COLORSPACE_JPEG},
 119 };
 120
 121 static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30};
 122 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 123
 124 static const struct framerates ov772x_framerates[] = {
 125         { /* 320x240 */
 126                 .rates = qvga_rates,
 127                 .nrates = ARRAY_SIZE(qvga_rates),
 128         },
 129         { /* 640x480 */
 130                 .rates = vga_rates,
 131                 .nrates = ARRAY_SIZE(vga_rates),
 132         },
 133 };
 134
 135 struct reg_array {
 136         const u8 (*val)[2];
 137         int len;
 138 };
 139
 140 static const u8 bridge_init_767x[][2] = {
 141 /* comments from the ms-win file apollo7670.set */
 142 /* str1 */
 143         {0xf1, 0x42},
 144         {0x88, 0xf8},
 145         {0x89, 0xff},
 146         {0x76, 0x03},
 147         {0x92, 0x03},
 148         {0x95, 0x10},
 149         {0xe2, 0x00},
 150         {0xe7, 0x3e},
 151         {0x8d, 0x1c},
 152         {0x8e, 0x00},
 153         {0x8f, 0x00},
 154         {0x1f, 0x00},
 155         {0xc3, 0xf9},
 156         {0x89, 0xff},
 157         {0x88, 0xf8},
 158         {0x76, 0x03},
 159         {0x92, 0x01},
 160         {0x93, 0x18},
 161         {0x1c, 0x00},
 162         {0x1d, 0x48},
 163         {0x1d, 0x00},
 164         {0x1d, 0xff},
 165         {0x1d, 0x02},
 166         {0x1d, 0x58},
 167         {0x1d, 0x00},
 168         {0x1c, 0x0a},
 169         {0x1d, 0x0a},
 170         {0x1d, 0x0e},
 171         {0xc0, 0x50},   /* HSize 640 */
 172         {0xc1, 0x3c},   /* VSize 480 */
 173         {0x34, 0x05},   /* enable Audio Suspend mode */
 174         {0xc2, 0x0c},   /* Input YUV */
 175         {0xc3, 0xf9},   /* enable PRE */
 176         {0x34, 0x05},   /* enable Audio Suspend mode */
 177         {0xe7, 0x2e},   /* this solves failure of "SuspendResumeTest" */
 178         {0x31, 0xf9},   /* enable 1.8V Suspend */
 179         {0x35, 0x02},   /* turn on JPEG */
 180         {0xd9, 0x10},
 181         {0x25, 0x42},   /* GPIO[8]:Input */
 182         {0x94, 0x11},   /* If the default setting is loaded when
 183                          * system boots up, this flag is closed here */
 184 };
 185 static const u8 sensor_init_767x[][2] = {
 186         {0x12, 0x80},
 187         {0x11, 0x03},
 188         {0x3a, 0x04},
 189         {0x12, 0x00},
 190         {0x17, 0x13},
 191         {0x18, 0x01},
 192         {0x32, 0xb6},
 193         {0x19, 0x02},
 194         {0x1a, 0x7a},
 195         {0x03, 0x0a},
 196         {0x0c, 0x00},
 197         {0x3e, 0x00},
 198         {0x70, 0x3a},
 199         {0x71, 0x35},
 200         {0x72, 0x11},
 201         {0x73, 0xf0},
 202         {0xa2, 0x02},
 203         {0x7a, 0x2a},   /* set Gamma=1.6 below */
 204         {0x7b, 0x12},
 205         {0x7c, 0x1d},
 206         {0x7d, 0x2d},
 207         {0x7e, 0x45},
 208         {0x7f, 0x50},
 209         {0x80, 0x59},
 210         {0x81, 0x62},
 211         {0x82, 0x6b},
 212         {0x83, 0x73},
 213         {0x84, 0x7b},
 214         {0x85, 0x8a},
 215         {0x86, 0x98},
 216         {0x87, 0xb2},
 217         {0x88, 0xca},
 218         {0x89, 0xe0},
 219         {0x13, 0xe0},
 220         {0x00, 0x00},
 221         {0x10, 0x00},
 222         {0x0d, 0x40},
 223         {0x14, 0x38},   /* gain max 16x */
 224         {0xa5, 0x05},
 225         {0xab, 0x07},
 226         {0x24, 0x95},
 227         {0x25, 0x33},
 228         {0x26, 0xe3},
 229         {0x9f, 0x78},
 230         {0xa0, 0x68},
 231         {0xa1, 0x03},
 232         {0xa6, 0xd8},
 233         {0xa7, 0xd8},
 234         {0xa8, 0xf0},
 235         {0xa9, 0x90},
 236         {0xaa, 0x94},
 237         {0x13, 0xe5},
 238         {0x0e, 0x61},
 239         {0x0f, 0x4b},
 240         {0x16, 0x02},
 241         {0x21, 0x02},
 242         {0x22, 0x91},
 243         {0x29, 0x07},
 244         {0x33, 0x0b},
 245         {0x35, 0x0b},
 246         {0x37, 0x1d},
 247         {0x38, 0x71},
 248         {0x39, 0x2a},
 249         {0x3c, 0x78},
 250         {0x4d, 0x40},
 251         {0x4e, 0x20},
 252         {0x69, 0x00},
 253         {0x6b, 0x4a},
 254         {0x74, 0x10},
 255         {0x8d, 0x4f},
 256         {0x8e, 0x00},
 257         {0x8f, 0x00},
 258         {0x90, 0x00},
 259         {0x91, 0x00},
 260         {0x96, 0x00},
 261         {0x9a, 0x80},
 262         {0xb0, 0x84},
 263         {0xb1, 0x0c},
 264         {0xb2, 0x0e},
 265         {0xb3, 0x82},
 266         {0xb8, 0x0a},
 267         {0x43, 0x0a},
 268         {0x44, 0xf0},
 269         {0x45, 0x34},
 270         {0x46, 0x58},
 271         {0x47, 0x28},
 272         {0x48, 0x3a},
 273         {0x59, 0x88},
 274         {0x5a, 0x88},
 275         {0x5b, 0x44},
 276         {0x5c, 0x67},
 277         {0x5d, 0x49},
 278         {0x5e, 0x0e},
 279         {0x6c, 0x0a},
 280         {0x6d, 0x55},
 281         {0x6e, 0x11},
 282         {0x6f, 0x9f},
 283         {0x6a, 0x40},
 284         {0x01, 0x40},
 285         {0x02, 0x40},
 286         {0x13, 0xe7},
 287         {0x4f, 0x80},
 288         {0x50, 0x80},
 289         {0x51, 0x00},
 290         {0x52, 0x22},
 291         {0x53, 0x5e},
 292         {0x54, 0x80},
 293         {0x58, 0x9e},
 294         {0x41, 0x08},
 295         {0x3f, 0x00},
 296         {0x75, 0x04},
 297         {0x76, 0xe1},
 298         {0x4c, 0x00},
 299         {0x77, 0x01},
 300         {0x3d, 0xc2},
 301         {0x4b, 0x09},
 302         {0xc9, 0x60},
 303         {0x41, 0x38},   /* jfm: auto sharpness + auto de-noise  */
 304         {0x56, 0x40},
 305         {0x34, 0x11},
 306         {0x3b, 0xc2},
 307         {0xa4, 0x8a},   /* Night mode trigger point */
 308         {0x96, 0x00},
 309         {0x97, 0x30},
 310         {0x98, 0x20},
 311         {0x99, 0x20},
 312         {0x9a, 0x84},
 313         {0x9b, 0x29},
 314         {0x9c, 0x03},
 315         {0x9d, 0x4c},
 316         {0x9e, 0x3f},
 317         {0x78, 0x04},
 318         {0x79, 0x01},
 319         {0xc8, 0xf0},
 320         {0x79, 0x0f},
 321         {0xc8, 0x00},
 322         {0x79, 0x10},
 323         {0xc8, 0x7e},
 324         {0x79, 0x0a},
 325         {0xc8, 0x80},
 326         {0x79, 0x0b},
 327         {0xc8, 0x01},
 328         {0x79, 0x0c},
 329         {0xc8, 0x0f},
 330         {0x79, 0x0d},
 331         {0xc8, 0x20},
 332         {0x79, 0x09},
 333         {0xc8, 0x80},
 334         {0x79, 0x02},
 335         {0xc8, 0xc0},
 336         {0x79, 0x03},
 337         {0xc8, 0x20},
 338         {0x79, 0x26},
 339 };
 340 static const u8 bridge_start_vga_767x[][2] = {
 341 /* str59 JPG */
 342         {0x94, 0xaa},
 343         {0xf1, 0x42},
 344         {0xe5, 0x04},
 345         {0xc0, 0x50},
 346         {0xc1, 0x3c},
 347         {0xc2, 0x0c},
 348         {0x35, 0x02},   /* turn on JPEG */
 349         {0xd9, 0x10},
 350         {0xda, 0x00},   /* for higher clock rate(30fps) */
 351         {0x34, 0x05},   /* enable Audio Suspend mode */
 352         {0xc3, 0xf9},   /* enable PRE */
 353         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 354         {0x8d, 0x1c},   /* output YUV */
 355 /*      {0x34, 0x05},    * enable Audio Suspend mode (?) */
 356         {0x50, 0x00},   /* H/V divider=0 */
 357         {0x51, 0xa0},   /* input H=640/4 */
 358         {0x52, 0x3c},   /* input V=480/4 */
 359         {0x53, 0x00},   /* offset X=0 */
 360         {0x54, 0x00},   /* offset Y=0 */
 361         {0x55, 0x00},   /* H/V size[8]=0 */
 362         {0x57, 0x00},   /* H-size[9]=0 */
 363         {0x5c, 0x00},   /* output size[9:8]=0 */
 364         {0x5a, 0xa0},   /* output H=640/4 */
 365         {0x5b, 0x78},   /* output V=480/4 */
 366         {0x1c, 0x0a},
 367         {0x1d, 0x0a},
 368         {0x94, 0x11},
 369 };
 370 static const u8 sensor_start_vga_767x[][2] = {
 371         {0x11, 0x01},
 372         {0x1e, 0x04},
 373         {0x19, 0x02},
 374         {0x1a, 0x7a},
 375 };
 376 static const u8 bridge_start_qvga_767x[][2] = {
 377 /* str86 JPG */
 378         {0x94, 0xaa},
 379         {0xf1, 0x42},
 380         {0xe5, 0x04},
 381         {0xc0, 0x80},
 382         {0xc1, 0x60},
 383         {0xc2, 0x0c},
 384         {0x35, 0x02},   /* turn on JPEG */
 385         {0xd9, 0x10},
 386         {0xc0, 0x50},   /* CIF HSize 640 */
 387         {0xc1, 0x3c},   /* CIF VSize 480 */
 388         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 389         {0x8d, 0x1c},   /* output YUV */
 390         {0x34, 0x05},   /* enable Audio Suspend mode */
 391         {0xc2, 0x4c},   /* output YUV and Enable DCW */
 392         {0xc3, 0xf9},   /* enable PRE */
 393         {0x1c, 0x00},   /* indirect addressing */
 394         {0x1d, 0x48},   /* output YUV422 */
 395         {0x50, 0x89},   /* H/V divider=/2; plus DCW AVG */
 396         {0x51, 0xa0},   /* DCW input H=640/4 */
 397         {0x52, 0x78},   /* DCW input V=480/4 */
 398         {0x53, 0x00},   /* offset X=0 */
 399         {0x54, 0x00},   /* offset Y=0 */
 400         {0x55, 0x00},   /* H/V size[8]=0 */
 401         {0x57, 0x00},   /* H-size[9]=0 */
 402         {0x5c, 0x00},   /* DCW output size[9:8]=0 */
 403         {0x5a, 0x50},   /* DCW output H=320/4 */
 404         {0x5b, 0x3c},   /* DCW output V=240/4 */
 405         {0x1c, 0x0a},
 406         {0x1d, 0x0a},
 407         {0x94, 0x11},
 408 };
 409 static const u8 sensor_start_qvga_767x[][2] = {
 410         {0x11, 0x01},
 411         {0x1e, 0x04},
 412         {0x19, 0x02},
 413         {0x1a, 0x7a},
 414 };
 415
 416 static const u8 bridge_init_772x[][2] = {
 417         { 0xc2, 0x0c },
 418         { 0x88, 0xf8 },
 419         { 0xc3, 0x69 },
 420         { 0x89, 0xff },
 421         { 0x76, 0x03 },
 422         { 0x92, 0x01 },
 423         { 0x93, 0x18 },
 424         { 0x94, 0x10 },
 425         { 0x95, 0x10 },
 426         { 0xe2, 0x00 },
 427         { 0xe7, 0x3e },
 428
 429         { 0x96, 0x00 },
 430
 431         { 0x97, 0x20 },
 432         { 0x97, 0x20 },
 433         { 0x97, 0x20 },
 434         { 0x97, 0x0a },
 435         { 0x97, 0x3f },
 436         { 0x97, 0x4a },
 437         { 0x97, 0x20 },
 438         { 0x97, 0x15 },
 439         { 0x97, 0x0b },
 440
 441         { 0x8e, 0x40 },
 442         { 0x1f, 0x81 },
 443         { 0x34, 0x05 },
 444         { 0xe3, 0x04 },
 445         { 0x88, 0x00 },
 446         { 0x89, 0x00 },
 447         { 0x76, 0x00 },
 448         { 0xe7, 0x2e },
 449         { 0x31, 0xf9 },
 450         { 0x25, 0x42 },
 451         { 0x21, 0xf0 },
 452
 453         { 0x1c, 0x00 },
 454         { 0x1d, 0x40 },
 455         { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
 456         { 0x1d, 0x00 }, /* payload size */
 457
 458         { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
 459         { 0x1d, 0x58 }, /* frame size */
 460         { 0x1d, 0x00 }, /* frame size */
 461
 462         { 0x1c, 0x0a },
 463         { 0x1d, 0x08 }, /* turn on UVC header */
 464         { 0x1d, 0x0e }, /* .. */
 465
 466         { 0x8d, 0x1c },
 467         { 0x8e, 0x80 },
 468         { 0xe5, 0x04 },
 469
 470         { 0xc0, 0x50 },
 471         { 0xc1, 0x3c },
 472         { 0xc2, 0x0c },
 473 };
 474 static const u8 sensor_init_772x[][2] = {
 475         { 0x12, 0x80 },
 476         { 0x11, 0x01 },
 477 /*fixme: better have a delay?*/
 478         { 0x11, 0x01 },
 479         { 0x11, 0x01 },
 480         { 0x11, 0x01 },
 481         { 0x11, 0x01 },
 482         { 0x11, 0x01 },
 483         { 0x11, 0x01 },
 484         { 0x11, 0x01 },
 485         { 0x11, 0x01 },
 486         { 0x11, 0x01 },
 487         { 0x11, 0x01 },
 488
 489         { 0x3d, 0x03 },
 490         { 0x17, 0x26 },
 491         { 0x18, 0xa0 },
 492         { 0x19, 0x07 },
 493         { 0x1a, 0xf0 },
 494         { 0x32, 0x00 },
 495         { 0x29, 0xa0 },
 496         { 0x2c, 0xf0 },
 497         { 0x65, 0x20 },
 498         { 0x11, 0x01 },
 499         { 0x42, 0x7f },
 500         { 0x63, 0xaa },         /* AWB - was e0 */
 501         { 0x64, 0xff },
 502         { 0x66, 0x00 },
 503         { 0x13, 0xf0 },         /* com8 */
 504         { 0x0d, 0x41 },
 505         { 0x0f, 0xc5 },
 506         { 0x14, 0x11 },
 507
 508         { 0x22, 0x7f },
 509         { 0x23, 0x03 },
 510         { 0x24, 0x40 },
 511         { 0x25, 0x30 },
 512         { 0x26, 0xa1 },
 513         { 0x2a, 0x00 },
 514         { 0x2b, 0x00 },
 515         { 0x6b, 0xaa },
 516         { 0x13, 0xff },         /* AWB */
 517
 518         { 0x90, 0x05 },
 519         { 0x91, 0x01 },
 520         { 0x92, 0x03 },
 521         { 0x93, 0x00 },
 522         { 0x94, 0x60 },
 523         { 0x95, 0x3c },
 524         { 0x96, 0x24 },
 525         { 0x97, 0x1e },
 526         { 0x98, 0x62 },
 527         { 0x99, 0x80 },
 528         { 0x9a, 0x1e },
 529         { 0x9b, 0x08 },
 530         { 0x9c, 0x20 },
 531         { 0x9e, 0x81 },
 532
 533         { 0xa6, 0x07 },
 534         { 0x7e, 0x0c },
 535         { 0x7f, 0x16 },
 536         { 0x80, 0x2a },
 537         { 0x81, 0x4e },
 538         { 0x82, 0x61 },
 539         { 0x83, 0x6f },
 540         { 0x84, 0x7b },
 541         { 0x85, 0x86 },
 542         { 0x86, 0x8e },
 543         { 0x87, 0x97 },
 544         { 0x88, 0xa4 },
 545         { 0x89, 0xaf },
 546         { 0x8a, 0xc5 },
 547         { 0x8b, 0xd7 },
 548         { 0x8c, 0xe8 },
 549         { 0x8d, 0x20 },
 550
 551         { 0x0c, 0x90 },
 552
 553         { 0x2b, 0x00 },
 554         { 0x22, 0x7f },
 555         { 0x23, 0x03 },
 556         { 0x11, 0x01 },
 557         { 0x0c, 0xd0 },
 558         { 0x64, 0xff },
 559         { 0x0d, 0x41 },
 560
 561         { 0x14, 0x41 },
 562         { 0x0e, 0xcd },
 563         { 0xac, 0xbf },
 564         { 0x8e, 0x00 },         /* De-noise threshold */
 565         { 0x0c, 0xd0 }
 566 };
 567 static const u8 bridge_start_vga_772x[][2] = {
 568         {0x1c, 0x00},
 569         {0x1d, 0x40},
 570         {0x1d, 0x02},
 571         {0x1d, 0x00},
 572         {0x1d, 0x02},
 573         {0x1d, 0x58},
 574         {0x1d, 0x00},
 575         {0xc0, 0x50},
 576         {0xc1, 0x3c},
 577 };
 578 static const u8 sensor_start_vga_772x[][2] = {
 579         {0x12, 0x00},
 580         {0x17, 0x26},
 581         {0x18, 0xa0},
 582         {0x19, 0x07},
 583         {0x1a, 0xf0},
 584         {0x29, 0xa0},
 585         {0x2c, 0xf0},
 586         {0x65, 0x20},
 587 };
 588 static const u8 bridge_start_qvga_772x[][2] = {
 589         {0x1c, 0x00},
 590         {0x1d, 0x40},
 591         {0x1d, 0x02},
 592         {0x1d, 0x00},
 593         {0x1d, 0x01},
 594         {0x1d, 0x4b},
 595         {0x1d, 0x00},
 596         {0xc0, 0x28},
 597         {0xc1, 0x1e},
 598 };
 599 static const u8 sensor_start_qvga_772x[][2] = {
 600         {0x12, 0x40},
 601         {0x17, 0x3f},
 602         {0x18, 0x50},
 603         {0x19, 0x03},
 604         {0x1a, 0x78},
 605         {0x29, 0x50},
 606         {0x2c, 0x78},
 607         {0x65, 0x2f},
 608 };
 609
 610 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 611 {
 612         struct usb_device *udev = gspca_dev->dev;
 613         int ret;
 614
 615         if (gspca_dev->usb_err < 0)
 616                 return;
 617
 618         PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
 619         gspca_dev->usb_buf[0] = val;
 620         ret = usb_control_msg(udev,
 621                               usb_sndctrlpipe(udev, 0),
 622                               0x01,
 623                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 624                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 625         if (ret < 0) {
 626                 pr_err("write failed %d\n", ret);
 627                 gspca_dev->usb_err = ret;
 628         }
 629 }
 630
 631 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 632 {
 633         struct usb_device *udev = gspca_dev->dev;
 634         int ret;
 635
 636         if (gspca_dev->usb_err < 0)
 637                 return 0;
 638         ret = usb_control_msg(udev,
 639                               usb_rcvctrlpipe(udev, 0),
 640                               0x01,
 641                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 642                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 643         PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
 644         if (ret < 0) {
 645                 pr_err("read failed %d\n", ret);
 646                 gspca_dev->usb_err = ret;
 647         }
 648         return gspca_dev->usb_buf[0];
 649 }
 650
 651 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 652  * (direction and output)? */
 653 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 654 {
 655         u8 data;
 656
 657         PDEBUG(D_CONF, "led status: %d", status);
 658
 659         data = ov534_reg_read(gspca_dev, 0x21);
 660         data |= 0x80;
 661         ov534_reg_write(gspca_dev, 0x21, data);
 662
 663         data = ov534_reg_read(gspca_dev, 0x23);
 664         if (status)
 665                 data |= 0x80;
 666         else
 667                 data &= ~0x80;
 668
 669         ov534_reg_write(gspca_dev, 0x23, data);
 670
 671         if (!status) {
 672                 data = ov534_reg_read(gspca_dev, 0x21);
 673                 data &= ~0x80;
 674                 ov534_reg_write(gspca_dev, 0x21, data);
 675         }
 676 }
 677
 678 static int sccb_check_status(struct gspca_dev *gspca_dev)
 679 {
 680         u8 data;
 681         int i;
 682
 683         for (i = 0; i < 5; i++) {
 684                 msleep(10);
 685                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 686
 687                 switch (data) {
 688                 case 0x00:
 689                         return 1;
 690                 case 0x04:
 691                         return 0;
 692                 case 0x03:
 693                         break;
 694                 default:
 695                         PERR("sccb status 0x%02x, attempt %d/5",
 696                                data, i + 1);
 697                 }
 698         }
 699         return 0;
 700 }
 701
 702 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 703 {
 704         PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
 705         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 706         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 707         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 708
 709         if (!sccb_check_status(gspca_dev)) {
 710                 pr_err("sccb_reg_write failed\n");
 711                 gspca_dev->usb_err = -EIO;
 712         }
 713 }
 714
 715 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 716 {
 717         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 718         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 719         if (!sccb_check_status(gspca_dev))
 720                 pr_err("sccb_reg_read failed 1\n");
 721
 722         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 723         if (!sccb_check_status(gspca_dev))
 724                 pr_err("sccb_reg_read failed 2\n");
 725
 726         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 727 }
 728
 729 /* output a bridge sequence (reg - val) */
 730 static void reg_w_array(struct gspca_dev *gspca_dev,
 731                         const u8 (*data)[2], int len)
 732 {
 733         while (--len >= 0) {
 734                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 735                 data++;
 736         }
 737 }
 738
 739 /* output a sensor sequence (reg - val) */
 740 static void sccb_w_array(struct gspca_dev *gspca_dev,
 741                         const u8 (*data)[2], int len)
 742 {
 743         while (--len >= 0) {
 744                 if ((*data)[0] != 0xff) {
 745                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 746                 } else {
 747                         sccb_reg_read(gspca_dev, (*data)[1]);
 748                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 749                 }
 750                 data++;
 751         }
 752 }
 753
 754 /* ov772x specific controls */
 755 static void set_frame_rate(struct gspca_dev *gspca_dev)
 756 {
 757         struct sd *sd = (struct sd *) gspca_dev;
 758         int i;
 759         struct rate_s {
 760                 u8 fps;
 761                 u8 r11;
 762                 u8 r0d;
 763                 u8 re5;
 764         };
 765         const struct rate_s *r;
 766         static const struct rate_s rate_0[] = { /* 640x480 */
 767                 {60, 0x01, 0xc1, 0x04},
 768                 {50, 0x01, 0x41, 0x02},
 769                 {40, 0x02, 0xc1, 0x04},
 770                 {30, 0x04, 0x81, 0x02},
 771                 {15, 0x03, 0x41, 0x04},
 772         };
 773         static const struct rate_s rate_1[] = { /* 320x240 */
 774 /*              {205, 0x01, 0xc1, 0x02},  * 205 FPS: video is partly corrupt */
 775                 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
 776                 {150, 0x01, 0xc1, 0x04},
 777                 {137, 0x02, 0xc1, 0x02},
 778                 {125, 0x02, 0x81, 0x02},
 779                 {100, 0x02, 0xc1, 0x04},
 780                 {75, 0x03, 0xc1, 0x04},
 781                 {60, 0x04, 0xc1, 0x04},
 782                 {50, 0x02, 0x41, 0x04},
 783                 {37, 0x03, 0x41, 0x04},
 784                 {30, 0x04, 0x41, 0x04},
 785         };
 786
 787         if (sd->sensor != SENSOR_OV772x)
 788                 return;
 789         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 790                 r = rate_0;
 791                 i = ARRAY_SIZE(rate_0);
 792         } else {
 793                 r = rate_1;
 794                 i = ARRAY_SIZE(rate_1);
 795         }
 796         while (--i > 0) {
 797                 if (sd->frame_rate >= r->fps)
 798                         break;
 799                 r++;
 800         }
 801
 802         sccb_reg_write(gspca_dev, 0x11, r->r11);
 803         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 804         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 805
 806         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 807 }
 808
 809 static void sethue(struct gspca_dev *gspca_dev, s32 val)
 810 {
 811         struct sd *sd = (struct sd *) gspca_dev;
 812
 813         if (sd->sensor == SENSOR_OV767x) {
 814                 /* TBD */
 815         } else {
 816                 s16 huesin;
 817                 s16 huecos;
 818
 819                 /* According to the datasheet the registers expect HUESIN and
 820                  * HUECOS to be the result of the trigonometric functions,
 821                  * scaled by 0x80.
 822                  *
 823                  * The 0x7fff here represents the maximum absolute value
 824                  * returned byt fixp_sin and fixp_cos, so the scaling will
 825                  * consider the result like in the interval [-1.0, 1.0].
 826                  */
 827                 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
 828                 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
 829
 830                 if (huesin < 0) {
 831                         sccb_reg_write(gspca_dev, 0xab,
 832                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
 833                         huesin = -huesin;
 834                 } else {
 835                         sccb_reg_write(gspca_dev, 0xab,
 836                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
 837
 838                 }
 839                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
 840                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
 841         }
 842 }
 843
 844 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
 845 {
 846         struct sd *sd = (struct sd *) gspca_dev;
 847
 848         if (sd->sensor == SENSOR_OV767x) {
 849                 int i;
 850                 static u8 color_tb[][6] = {
 851                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
 852                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
 853                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
 854                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
 855                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
 856                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
 857                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
 858                 };
 859
 860                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
 861                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
 862         } else {
 863                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
 864                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
 865         }
 866 }
 867
 868 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 869 {
 870         struct sd *sd = (struct sd *) gspca_dev;
 871
 872         if (sd->sensor == SENSOR_OV767x) {
 873                 if (val < 0)
 874                         val = 0x80 - val;
 875                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
 876         } else {
 877                 sccb_reg_write(gspca_dev, 0x9b, val);
 878         }
 879 }
 880
 881 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 882 {
 883         struct sd *sd = (struct sd *) gspca_dev;
 884
 885         if (sd->sensor == SENSOR_OV767x)
 886                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
 887         else
 888                 sccb_reg_write(gspca_dev, 0x9c, val);
 889 }
 890
 891 static void setgain(struct gspca_dev *gspca_dev, s32 val)
 892 {
 893         switch (val & 0x30) {
 894         case 0x00:
 895                 val &= 0x0f;
 896                 break;
 897         case 0x10:
 898                 val &= 0x0f;
 899                 val |= 0x30;
 900                 break;
 901         case 0x20:
 902                 val &= 0x0f;
 903                 val |= 0x70;
 904                 break;
 905         default:
 906 /*      case 0x30: */
 907                 val &= 0x0f;
 908                 val |= 0xf0;
 909                 break;
 910         }
 911         sccb_reg_write(gspca_dev, 0x00, val);
 912 }
 913
 914 static s32 getgain(struct gspca_dev *gspca_dev)
 915 {
 916         return sccb_reg_read(gspca_dev, 0x00);
 917 }
 918
 919 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 920 {
 921         struct sd *sd = (struct sd *) gspca_dev;
 922
 923         if (sd->sensor == SENSOR_OV767x) {
 924
 925                 /* set only aec[9:2] */
 926                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
 927         } else {
 928
 929                 /* 'val' is one byte and represents half of the exposure value
 930                  * we are going to set into registers, a two bytes value:
 931                  *
 932                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
 933                  *    LSB: ((u16) val << 1) & 0xff == val << 1
 934                  */
 935                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
 936                 sccb_reg_write(gspca_dev, 0x10, val << 1);
 937         }
 938 }
 939
 940 static s32 getexposure(struct gspca_dev *gspca_dev)
 941 {
 942         struct sd *sd = (struct sd *) gspca_dev;
 943
 944         if (sd->sensor == SENSOR_OV767x) {
 945                 /* get only aec[9:2] */
 946                 return sccb_reg_read(gspca_dev, 0x10);  /* aech */
 947         } else {
 948                 u8 hi = sccb_reg_read(gspca_dev, 0x08);
 949                 u8 lo = sccb_reg_read(gspca_dev, 0x10);
 950                 return (hi << 8 | lo) >> 1;
 951         }
 952 }
 953
 954 static void setagc(struct gspca_dev *gspca_dev, s32 val)
 955 {
 956         if (val) {
 957                 sccb_reg_write(gspca_dev, 0x13,
 958                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
 959                 sccb_reg_write(gspca_dev, 0x64,
 960                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
 961         } else {
 962                 sccb_reg_write(gspca_dev, 0x13,
 963                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
 964                 sccb_reg_write(gspca_dev, 0x64,
 965                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
 966         }
 967 }
 968
 969 static void setawb(struct gspca_dev *gspca_dev, s32 val)
 970 {
 971         struct sd *sd = (struct sd *) gspca_dev;
 972
 973         if (val) {
 974                 sccb_reg_write(gspca_dev, 0x13,
 975                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
 976                 if (sd->sensor == SENSOR_OV772x)
 977                         sccb_reg_write(gspca_dev, 0x63,
 978                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
 979         } else {
 980                 sccb_reg_write(gspca_dev, 0x13,
 981                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
 982                 if (sd->sensor == SENSOR_OV772x)
 983                         sccb_reg_write(gspca_dev, 0x63,
 984                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
 985         }
 986 }
 987
 988 static void setaec(struct gspca_dev *gspca_dev, s32 val)
 989 {
 990         struct sd *sd = (struct sd *) gspca_dev;
 991         u8 data;
 992
 993         data = sd->sensor == SENSOR_OV767x ?
 994                         0x05 :          /* agc + aec */
 995                         0x01;           /* agc */
 996         switch (val) {
 997         case V4L2_EXPOSURE_AUTO:
 998                 sccb_reg_write(gspca_dev, 0x13,
 999                                 sccb_reg_read(gspca_dev, 0x13) | data);
1000                 break;
1001         case V4L2_EXPOSURE_MANUAL:
1002                 sccb_reg_write(gspca_dev, 0x13,
1003                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1004                 break;
1005         }
1006 }
1007
1008 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1009 {
1010         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1011         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1012 }
1013
1014 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1015 {
1016         struct sd *sd = (struct sd *) gspca_dev;
1017         u8 val;
1018
1019         if (sd->sensor == SENSOR_OV767x) {
1020                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1021                 val &= ~0x30;
1022                 if (hflip)
1023                         val |= 0x20;
1024                 if (vflip)
1025                         val |= 0x10;
1026                 sccb_reg_write(gspca_dev, 0x1e, val);
1027         } else {
1028                 val = sccb_reg_read(gspca_dev, 0x0c);
1029                 val &= ~0xc0;
1030                 if (hflip == 0)
1031                         val |= 0x40;
1032                 if (vflip == 0)
1033                         val |= 0x80;
1034                 sccb_reg_write(gspca_dev, 0x0c, val);
1035         }
1036 }
1037
1038 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1039 {
1040         struct sd *sd = (struct sd *) gspca_dev;
1041
1042         val = val ? 0x9e : 0x00;
1043         if (sd->sensor == SENSOR_OV767x) {
1044                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1045                 if (val)
1046                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1047         }
1048         sccb_reg_write(gspca_dev, 0x2b, val);
1049 }
1050
1051
1052 /* this function is called at probe time */
1053 static int sd_config(struct gspca_dev *gspca_dev,
1054                      const struct usb_device_id *id)
1055 {
1056         struct sd *sd = (struct sd *) gspca_dev;
1057         struct cam *cam;
1058
1059         cam = &gspca_dev->cam;
1060
1061         cam->cam_mode = ov772x_mode;
1062         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1063
1064         sd->frame_rate = 30;
1065
1066         return 0;
1067 }
1068
1069 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1070 {
1071         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1072         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1073
1074         switch (ctrl->id) {
1075         case V4L2_CID_AUTOGAIN:
1076                 gspca_dev->usb_err = 0;
1077                 if (ctrl->val && sd->gain && gspca_dev->streaming)
1078                         sd->gain->val = getgain(gspca_dev);
1079                 return gspca_dev->usb_err;
1080
1081         case V4L2_CID_EXPOSURE_AUTO:
1082                 gspca_dev->usb_err = 0;
1083                 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1084                     gspca_dev->streaming)
1085                         sd->exposure->val = getexposure(gspca_dev);
1086                 return gspca_dev->usb_err;
1087         }
1088         return -EINVAL;
1089 }
1090
1091 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1092 {
1093         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1094         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1095
1096         gspca_dev->usb_err = 0;
1097         if (!gspca_dev->streaming)
1098                 return 0;
1099
1100         switch (ctrl->id) {
1101         case V4L2_CID_HUE:
1102                 sethue(gspca_dev, ctrl->val);
1103                 break;
1104         case V4L2_CID_SATURATION:
1105                 setsaturation(gspca_dev, ctrl->val);
1106                 break;
1107         case V4L2_CID_BRIGHTNESS:
1108                 setbrightness(gspca_dev, ctrl->val);
1109                 break;
1110         case V4L2_CID_CONTRAST:
1111                 setcontrast(gspca_dev, ctrl->val);
1112                 break;
1113         case V4L2_CID_AUTOGAIN:
1114         /* case V4L2_CID_GAIN: */
1115                 setagc(gspca_dev, ctrl->val);
1116                 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1117                         setgain(gspca_dev, sd->gain->val);
1118                 break;
1119         case V4L2_CID_AUTO_WHITE_BALANCE:
1120                 setawb(gspca_dev, ctrl->val);
1121                 break;
1122         case V4L2_CID_EXPOSURE_AUTO:
1123         /* case V4L2_CID_EXPOSURE: */
1124                 setaec(gspca_dev, ctrl->val);
1125                 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1126                     sd->exposure)
1127                         setexposure(gspca_dev, sd->exposure->val);
1128                 break;
1129         case V4L2_CID_SHARPNESS:
1130                 setsharpness(gspca_dev, ctrl->val);
1131                 break;
1132         case V4L2_CID_HFLIP:
1133                 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1134                 break;
1135         case V4L2_CID_VFLIP:
1136                 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1137                 break;
1138         case V4L2_CID_POWER_LINE_FREQUENCY:
1139                 setlightfreq(gspca_dev, ctrl->val);
1140                 break;
1141         }
1142         return gspca_dev->usb_err;
1143 }
1144
1145 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1146         .g_volatile_ctrl = ov534_g_volatile_ctrl,
1147         .s_ctrl = ov534_s_ctrl,
1148 };
1149
1150 static int sd_init_controls(struct gspca_dev *gspca_dev)
1151 {
1152         struct sd *sd = (struct sd *) gspca_dev;
1153         struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1154         /* parameters with different values between the supported sensors */
1155         int saturation_min;
1156         int saturation_max;
1157         int saturation_def;
1158         int brightness_min;
1159         int brightness_max;
1160         int brightness_def;
1161         int contrast_max;
1162         int contrast_def;
1163         int exposure_min;
1164         int exposure_max;
1165         int exposure_def;
1166         int hflip_def;
1167
1168         if (sd->sensor == SENSOR_OV767x) {
1169                 saturation_min = 0,
1170                 saturation_max = 6,
1171                 saturation_def = 3,
1172                 brightness_min = -127;
1173                 brightness_max = 127;
1174                 brightness_def = 0;
1175                 contrast_max = 0x80;
1176                 contrast_def = 0x40;
1177                 exposure_min = 0x08;
1178                 exposure_max = 0x60;
1179                 exposure_def = 0x13;
1180                 hflip_def = 1;
1181         } else {
1182                 saturation_min = 0,
1183                 saturation_max = 255,
1184                 saturation_def = 64,
1185                 brightness_min = 0;
1186                 brightness_max = 255;
1187                 brightness_def = 0;
1188                 contrast_max = 255;
1189                 contrast_def = 32;
1190                 exposure_min = 0;
1191                 exposure_max = 255;
1192                 exposure_def = 120;
1193                 hflip_def = 0;
1194         }
1195
1196         gspca_dev->vdev.ctrl_handler = hdl;
1197
1198         v4l2_ctrl_handler_init(hdl, 13);
1199
1200         if (sd->sensor == SENSOR_OV772x)
1201                 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1202                                 V4L2_CID_HUE, -90, 90, 1, 0);
1203
1204         sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1205                         V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1206                         saturation_def);
1207         sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1208                         V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1209                         brightness_def);
1210         sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1211                         V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1212
1213         if (sd->sensor == SENSOR_OV772x) {
1214                 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1215                                 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1216                 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1217                                 V4L2_CID_GAIN, 0, 63, 1, 20);
1218         }
1219
1220         sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1221                         V4L2_CID_EXPOSURE_AUTO,
1222                         V4L2_EXPOSURE_MANUAL, 0,
1223                         V4L2_EXPOSURE_AUTO);
1224         sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1225                         V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1226                         exposure_def);
1227
1228         sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1229                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1230
1231         if (sd->sensor == SENSOR_OV772x)
1232                 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1233                                 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1234
1235         sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1236                         V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1237         sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1238                         V4L2_CID_VFLIP, 0, 1, 1, 0);
1239         sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1240                         V4L2_CID_POWER_LINE_FREQUENCY,
1241                         V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1242                         V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1243
1244         if (hdl->error) {
1245                 pr_err("Could not initialize controls\n");
1246                 return hdl->error;
1247         }
1248
1249         if (sd->sensor == SENSOR_OV772x)
1250                 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1251
1252         v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1253                                true);
1254
1255         return 0;
1256 }
1257
1258 /* this function is called at probe and resume time */
1259 static int sd_init(struct gspca_dev *gspca_dev)
1260 {
1261         struct sd *sd = (struct sd *) gspca_dev;
1262         u16 sensor_id;
1263         static const struct reg_array bridge_init[NSENSORS] = {
1264         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1265         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1266         };
1267         static const struct reg_array sensor_init[NSENSORS] = {
1268         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1269         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1270         };
1271
1272         /* reset bridge */
1273         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1274         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1275         msleep(100);
1276
1277         /* initialize the sensor address */
1278         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1279
1280         /* reset sensor */
1281         sccb_reg_write(gspca_dev, 0x12, 0x80);
1282         msleep(10);
1283
1284         /* probe the sensor */
1285         sccb_reg_read(gspca_dev, 0x0a);
1286         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1287         sccb_reg_read(gspca_dev, 0x0b);
1288         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1289         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1290
1291         if ((sensor_id & 0xfff0) == 0x7670) {
1292                 sd->sensor = SENSOR_OV767x;
1293                 gspca_dev->cam.cam_mode = ov767x_mode;
1294                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1295         } else {
1296                 sd->sensor = SENSOR_OV772x;
1297                 gspca_dev->cam.bulk = 1;
1298                 gspca_dev->cam.bulk_size = 16384;
1299                 gspca_dev->cam.bulk_nurbs = 2;
1300                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1301         }
1302
1303         /* initialize */
1304         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1305                         bridge_init[sd->sensor].len);
1306         ov534_set_led(gspca_dev, 1);
1307         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1308                         sensor_init[sd->sensor].len);
1309
1310         sd_stopN(gspca_dev);
1311 /*      set_frame_rate(gspca_dev);      */
1312
1313         return gspca_dev->usb_err;
1314 }
1315
1316 static int sd_start(struct gspca_dev *gspca_dev)
1317 {
1318         struct sd *sd = (struct sd *) gspca_dev;
1319         int mode;
1320         static const struct reg_array bridge_start[NSENSORS][2] = {
1321         [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1322                                         ARRAY_SIZE(bridge_start_qvga_767x)},
1323                         {bridge_start_vga_767x,
1324                                         ARRAY_SIZE(bridge_start_vga_767x)}},
1325         [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1326                                         ARRAY_SIZE(bridge_start_qvga_772x)},
1327                         {bridge_start_vga_772x,
1328                                         ARRAY_SIZE(bridge_start_vga_772x)}},
1329         };
1330         static const struct reg_array sensor_start[NSENSORS][2] = {
1331         [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1332                                         ARRAY_SIZE(sensor_start_qvga_767x)},
1333                         {sensor_start_vga_767x,
1334                                         ARRAY_SIZE(sensor_start_vga_767x)}},
1335         [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1336                                         ARRAY_SIZE(sensor_start_qvga_772x)},
1337                         {sensor_start_vga_772x,
1338                                         ARRAY_SIZE(sensor_start_vga_772x)}},
1339         };
1340
1341         /* (from ms-win trace) */
1342         if (sd->sensor == SENSOR_OV767x)
1343                 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1344                                         /* black sun enable ? */
1345
1346         mode = gspca_dev->curr_mode;    /* 0: 320x240, 1: 640x480 */
1347         reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1348                                 bridge_start[sd->sensor][mode].len);
1349         sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1350                                 sensor_start[sd->sensor][mode].len);
1351
1352         set_frame_rate(gspca_dev);
1353
1354         if (sd->hue)
1355                 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1356         setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1357         if (sd->autogain)
1358                 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1359         setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1360         setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1361         if (sd->gain)
1362                 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1363         setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1364         setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1365         setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1366         if (sd->sharpness)
1367                 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1368         sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1369                   v4l2_ctrl_g_ctrl(sd->vflip));
1370         setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1371
1372         ov534_set_led(gspca_dev, 1);
1373         ov534_reg_write(gspca_dev, 0xe0, 0x00);
1374         return gspca_dev->usb_err;
1375 }
1376
1377 static void sd_stopN(struct gspca_dev *gspca_dev)
1378 {
1379         ov534_reg_write(gspca_dev, 0xe0, 0x09);
1380         ov534_set_led(gspca_dev, 0);
1381 }
1382
1383 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1384 #define UVC_STREAM_EOH  (1 << 7)
1385 #define UVC_STREAM_ERR  (1 << 6)
1386 #define UVC_STREAM_STI  (1 << 5)
1387 #define UVC_STREAM_RES  (1 << 4)
1388 #define UVC_STREAM_SCR  (1 << 3)
1389 #define UVC_STREAM_PTS  (1 << 2)
1390 #define UVC_STREAM_EOF  (1 << 1)
1391 #define UVC_STREAM_FID  (1 << 0)
1392
1393 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1394                         u8 *data, int len)
1395 {
1396         struct sd *sd = (struct sd *) gspca_dev;
1397         __u32 this_pts;
1398         u16 this_fid;
1399         int remaining_len = len;
1400         int payload_len;
1401
1402         payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1403         do {
1404                 len = min(remaining_len, payload_len);
1405
1406                 /* Payloads are prefixed with a UVC-style header.  We
1407                    consider a frame to start when the FID toggles, or the PTS
1408                    changes.  A frame ends when EOF is set, and we've received
1409                    the correct number of bytes. */
1410
1411                 /* Verify UVC header.  Header length is always 12 */
1412                 if (data[0] != 12 || len < 12) {
1413                         PDEBUG(D_PACK, "bad header");
1414                         goto discard;
1415                 }
1416
1417                 /* Check errors */
1418                 if (data[1] & UVC_STREAM_ERR) {
1419                         PDEBUG(D_PACK, "payload error");
1420                         goto discard;
1421                 }
1422
1423                 /* Extract PTS and FID */
1424                 if (!(data[1] & UVC_STREAM_PTS)) {
1425                         PDEBUG(D_PACK, "PTS not present");
1426                         goto discard;
1427                 }
1428                 this_pts = (data[5] << 24) | (data[4] << 16)
1429                                                 | (data[3] << 8) | data[2];
1430                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1431
1432                 /* If PTS or FID has changed, start a new frame. */
1433                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1434                         if (gspca_dev->last_packet_type == INTER_PACKET)
1435                                 gspca_frame_add(gspca_dev, LAST_PACKET,
1436                                                 NULL, 0);
1437                         sd->last_pts = this_pts;
1438                         sd->last_fid = this_fid;
1439                         gspca_frame_add(gspca_dev, FIRST_PACKET,
1440                                         data + 12, len - 12);
1441                 /* If this packet is marked as EOF, end the frame */
1442                 } else if (data[1] & UVC_STREAM_EOF) {
1443                         sd->last_pts = 0;
1444                         if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
1445                          && gspca_dev->image_len + len - 12 !=
1446                                    gspca_dev->pixfmt.width *
1447                                         gspca_dev->pixfmt.height * 2) {
1448                                 PDEBUG(D_PACK, "wrong sized frame");
1449                                 goto discard;
1450                         }
1451                         gspca_frame_add(gspca_dev, LAST_PACKET,
1452                                         data + 12, len - 12);
1453                 } else {
1454
1455                         /* Add the data from this payload */
1456                         gspca_frame_add(gspca_dev, INTER_PACKET,
1457                                         data + 12, len - 12);
1458                 }
1459
1460                 /* Done this payload */
1461                 goto scan_next;
1462
1463 discard:
1464                 /* Discard data until a new frame starts. */
1465                 gspca_dev->last_packet_type = DISCARD_PACKET;
1466
1467 scan_next:
1468                 remaining_len -= len;
1469                 data += len;
1470         } while (remaining_len > 0);
1471 }
1472
1473 /* get stream parameters (framerate) */
1474 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1475                              struct v4l2_streamparm *parm)
1476 {
1477         struct v4l2_captureparm *cp = &parm->parm.capture;
1478         struct v4l2_fract *tpf = &cp->timeperframe;
1479         struct sd *sd = (struct sd *) gspca_dev;
1480
1481         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1482         tpf->numerator = 1;
1483         tpf->denominator = sd->frame_rate;
1484 }
1485
1486 /* set stream parameters (framerate) */
1487 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1488                              struct v4l2_streamparm *parm)
1489 {
1490         struct v4l2_captureparm *cp = &parm->parm.capture;
1491         struct v4l2_fract *tpf = &cp->timeperframe;
1492         struct sd *sd = (struct sd *) gspca_dev;
1493
1494         /* Set requested framerate */
1495         sd->frame_rate = tpf->denominator / tpf->numerator;
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);