drivers/media/usb/gspca/ov534.c

   1 /*
   2  * ov534-ov7xxx gspca driver
   3  *
   4  * Copyright (C) 2008 Antonio Ospite <[email protected]>
   5  * Copyright (C) 2008 Jim Paris <[email protected]>
   6  * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
   7  *
   8  * Based on a prototype written by Mark Ferrell <[email protected]>
   9  * USB protocol reverse engineered by Jim Paris <[email protected]>
  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 <[email protected]>
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  29  */
  30
  31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  32
  33 #define MODULE_NAME "ov534"
  34
  35 #include "gspca.h"
  36
  37 #include <linux/fixp-arith.h>
  38 #include <media/v4l2-ctrls.h>
  39
  40 #define OV534_REG_ADDRESS       0xf1    /* sensor address */
  41 #define OV534_REG_SUBADDR       0xf2
  42 #define OV534_REG_WRITE         0xf3
  43 #define OV534_REG_READ          0xf4
  44 #define OV534_REG_OPERATION     0xf5
  45 #define OV534_REG_STATUS        0xf6
  46
  47 #define OV534_OP_WRITE_3        0x37
  48 #define OV534_OP_WRITE_2        0x33
  49 #define OV534_OP_READ_2         0xf9
  50
  51 #define CTRL_TIMEOUT 500
  52
  53 MODULE_AUTHOR("Antonio Ospite <[email protected]>");
  54 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
  55 MODULE_LICENSE("GPL");
  56
  57 /* specific webcam descriptor */
  58 struct sd {
  59         struct gspca_dev gspca_dev;     /* !! must be the first item */
  60
  61         struct v4l2_ctrl_handler ctrl_handler;
  62         struct v4l2_ctrl *hue;
  63         struct v4l2_ctrl *saturation;
  64         struct v4l2_ctrl *brightness;
  65         struct v4l2_ctrl *contrast;
  66         struct { /* gain control cluster */
  67                 struct v4l2_ctrl *autogain;
  68                 struct v4l2_ctrl *gain;
  69         };
  70         struct v4l2_ctrl *autowhitebalance;
  71         struct { /* exposure control cluster */
  72                 struct v4l2_ctrl *autoexposure;
  73                 struct v4l2_ctrl *exposure;
  74         };
  75         struct v4l2_ctrl *sharpness;
  76         struct v4l2_ctrl *hflip;
  77         struct v4l2_ctrl *vflip;
  78         struct v4l2_ctrl *plfreq;
  79
  80         __u32 last_pts;
  81         u16 last_fid;
  82         u8 frame_rate;
  83
  84         u8 sensor;
  85 };
  86 enum sensors {
  87         SENSOR_OV767x,
  88         SENSOR_OV772x,
  89         NSENSORS
  90 };
  91
  92 static int sd_start(struct gspca_dev *gspca_dev);
  93 static void sd_stopN(struct gspca_dev *gspca_dev);
  94
  95
  96 static const struct v4l2_pix_format ov772x_mode[] = {
  97         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
  98          .bytesperline = 320 * 2,
  99          .sizeimage = 320 * 240 * 2,
 100          .colorspace = V4L2_COLORSPACE_SRGB,
 101          .priv = 1},
 102         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 103          .bytesperline = 640 * 2,
 104          .sizeimage = 640 * 480 * 2,
 105          .colorspace = V4L2_COLORSPACE_SRGB,
 106          .priv = 0},
 107 };
 108 static const struct v4l2_pix_format ov767x_mode[] = {
 109         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 110                 .bytesperline = 320,
 111                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 112                 .colorspace = V4L2_COLORSPACE_JPEG},
 113         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 114                 .bytesperline = 640,
 115                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 116                 .colorspace = V4L2_COLORSPACE_JPEG},
 117 };
 118
 119 static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30};
 120 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 121
 122 static const struct framerates ov772x_framerates[] = {
 123         { /* 320x240 */
 124                 .rates = qvga_rates,
 125                 .nrates = ARRAY_SIZE(qvga_rates),
 126         },
 127         { /* 640x480 */
 128                 .rates = vga_rates,
 129                 .nrates = ARRAY_SIZE(vga_rates),
 130         },
 131 };
 132
 133 struct reg_array {
 134         const u8 (*val)[2];
 135         int len;
 136 };
 137
 138 static const u8 bridge_init_767x[][2] = {
 139 /* comments from the ms-win file apollo7670.set */
 140 /* str1 */
 141         {0xf1, 0x42},
 142         {0x88, 0xf8},
 143         {0x89, 0xff},
 144         {0x76, 0x03},
 145         {0x92, 0x03},
 146         {0x95, 0x10},
 147         {0xe2, 0x00},
 148         {0xe7, 0x3e},
 149         {0x8d, 0x1c},
 150         {0x8e, 0x00},
 151         {0x8f, 0x00},
 152         {0x1f, 0x00},
 153         {0xc3, 0xf9},
 154         {0x89, 0xff},
 155         {0x88, 0xf8},
 156         {0x76, 0x03},
 157         {0x92, 0x01},
 158         {0x93, 0x18},
 159         {0x1c, 0x00},
 160         {0x1d, 0x48},
 161         {0x1d, 0x00},
 162         {0x1d, 0xff},
 163         {0x1d, 0x02},
 164         {0x1d, 0x58},
 165         {0x1d, 0x00},
 166         {0x1c, 0x0a},
 167         {0x1d, 0x0a},
 168         {0x1d, 0x0e},
 169         {0xc0, 0x50},   /* HSize 640 */
 170         {0xc1, 0x3c},   /* VSize 480 */
 171         {0x34, 0x05},   /* enable Audio Suspend mode */
 172         {0xc2, 0x0c},   /* Input YUV */
 173         {0xc3, 0xf9},   /* enable PRE */
 174         {0x34, 0x05},   /* enable Audio Suspend mode */
 175         {0xe7, 0x2e},   /* this solves failure of "SuspendResumeTest" */
 176         {0x31, 0xf9},   /* enable 1.8V Suspend */
 177         {0x35, 0x02},   /* turn on JPEG */
 178         {0xd9, 0x10},
 179         {0x25, 0x42},   /* GPIO[8]:Input */
 180         {0x94, 0x11},   /* If the default setting is loaded when
 181                          * system boots up, this flag is closed here */
 182 };
 183 static const u8 sensor_init_767x[][2] = {
 184         {0x12, 0x80},
 185         {0x11, 0x03},
 186         {0x3a, 0x04},
 187         {0x12, 0x00},
 188         {0x17, 0x13},
 189         {0x18, 0x01},
 190         {0x32, 0xb6},
 191         {0x19, 0x02},
 192         {0x1a, 0x7a},
 193         {0x03, 0x0a},
 194         {0x0c, 0x00},
 195         {0x3e, 0x00},
 196         {0x70, 0x3a},
 197         {0x71, 0x35},
 198         {0x72, 0x11},
 199         {0x73, 0xf0},
 200         {0xa2, 0x02},
 201         {0x7a, 0x2a},   /* set Gamma=1.6 below */
 202         {0x7b, 0x12},
 203         {0x7c, 0x1d},
 204         {0x7d, 0x2d},
 205         {0x7e, 0x45},
 206         {0x7f, 0x50},
 207         {0x80, 0x59},
 208         {0x81, 0x62},
 209         {0x82, 0x6b},
 210         {0x83, 0x73},
 211         {0x84, 0x7b},
 212         {0x85, 0x8a},
 213         {0x86, 0x98},
 214         {0x87, 0xb2},
 215         {0x88, 0xca},
 216         {0x89, 0xe0},
 217         {0x13, 0xe0},
 218         {0x00, 0x00},
 219         {0x10, 0x00},
 220         {0x0d, 0x40},
 221         {0x14, 0x38},   /* gain max 16x */
 222         {0xa5, 0x05},
 223         {0xab, 0x07},
 224         {0x24, 0x95},
 225         {0x25, 0x33},
 226         {0x26, 0xe3},
 227         {0x9f, 0x78},
 228         {0xa0, 0x68},
 229         {0xa1, 0x03},
 230         {0xa6, 0xd8},
 231         {0xa7, 0xd8},
 232         {0xa8, 0xf0},
 233         {0xa9, 0x90},
 234         {0xaa, 0x94},
 235         {0x13, 0xe5},
 236         {0x0e, 0x61},
 237         {0x0f, 0x4b},
 238         {0x16, 0x02},
 239         {0x21, 0x02},
 240         {0x22, 0x91},
 241         {0x29, 0x07},
 242         {0x33, 0x0b},
 243         {0x35, 0x0b},
 244         {0x37, 0x1d},
 245         {0x38, 0x71},
 246         {0x39, 0x2a},
 247         {0x3c, 0x78},
 248         {0x4d, 0x40},
 249         {0x4e, 0x20},
 250         {0x69, 0x00},
 251         {0x6b, 0x4a},
 252         {0x74, 0x10},
 253         {0x8d, 0x4f},
 254         {0x8e, 0x00},
 255         {0x8f, 0x00},
 256         {0x90, 0x00},
 257         {0x91, 0x00},
 258         {0x96, 0x00},
 259         {0x9a, 0x80},
 260         {0xb0, 0x84},
 261         {0xb1, 0x0c},
 262         {0xb2, 0x0e},
 263         {0xb3, 0x82},
 264         {0xb8, 0x0a},
 265         {0x43, 0x0a},
 266         {0x44, 0xf0},
 267         {0x45, 0x34},
 268         {0x46, 0x58},
 269         {0x47, 0x28},
 270         {0x48, 0x3a},
 271         {0x59, 0x88},
 272         {0x5a, 0x88},
 273         {0x5b, 0x44},
 274         {0x5c, 0x67},
 275         {0x5d, 0x49},
 276         {0x5e, 0x0e},
 277         {0x6c, 0x0a},
 278         {0x6d, 0x55},
 279         {0x6e, 0x11},
 280         {0x6f, 0x9f},
 281         {0x6a, 0x40},
 282         {0x01, 0x40},
 283         {0x02, 0x40},
 284         {0x13, 0xe7},
 285         {0x4f, 0x80},
 286         {0x50, 0x80},
 287         {0x51, 0x00},
 288         {0x52, 0x22},
 289         {0x53, 0x5e},
 290         {0x54, 0x80},
 291         {0x58, 0x9e},
 292         {0x41, 0x08},
 293         {0x3f, 0x00},
 294         {0x75, 0x04},
 295         {0x76, 0xe1},
 296         {0x4c, 0x00},
 297         {0x77, 0x01},
 298         {0x3d, 0xc2},
 299         {0x4b, 0x09},
 300         {0xc9, 0x60},
 301         {0x41, 0x38},   /* jfm: auto sharpness + auto de-noise  */
 302         {0x56, 0x40},
 303         {0x34, 0x11},
 304         {0x3b, 0xc2},
 305         {0xa4, 0x8a},   /* Night mode trigger point */
 306         {0x96, 0x00},
 307         {0x97, 0x30},
 308         {0x98, 0x20},
 309         {0x99, 0x20},
 310         {0x9a, 0x84},
 311         {0x9b, 0x29},
 312         {0x9c, 0x03},
 313         {0x9d, 0x4c},
 314         {0x9e, 0x3f},
 315         {0x78, 0x04},
 316         {0x79, 0x01},
 317         {0xc8, 0xf0},
 318         {0x79, 0x0f},
 319         {0xc8, 0x00},
 320         {0x79, 0x10},
 321         {0xc8, 0x7e},
 322         {0x79, 0x0a},
 323         {0xc8, 0x80},
 324         {0x79, 0x0b},
 325         {0xc8, 0x01},
 326         {0x79, 0x0c},
 327         {0xc8, 0x0f},
 328         {0x79, 0x0d},
 329         {0xc8, 0x20},
 330         {0x79, 0x09},
 331         {0xc8, 0x80},
 332         {0x79, 0x02},
 333         {0xc8, 0xc0},
 334         {0x79, 0x03},
 335         {0xc8, 0x20},
 336         {0x79, 0x26},
 337 };
 338 static const u8 bridge_start_vga_767x[][2] = {
 339 /* str59 JPG */
 340         {0x94, 0xaa},
 341         {0xf1, 0x42},
 342         {0xe5, 0x04},
 343         {0xc0, 0x50},
 344         {0xc1, 0x3c},
 345         {0xc2, 0x0c},
 346         {0x35, 0x02},   /* turn on JPEG */
 347         {0xd9, 0x10},
 348         {0xda, 0x00},   /* for higher clock rate(30fps) */
 349         {0x34, 0x05},   /* enable Audio Suspend mode */
 350         {0xc3, 0xf9},   /* enable PRE */
 351         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 352         {0x8d, 0x1c},   /* output YUV */
 353 /*      {0x34, 0x05},    * enable Audio Suspend mode (?) */
 354         {0x50, 0x00},   /* H/V divider=0 */
 355         {0x51, 0xa0},   /* input H=640/4 */
 356         {0x52, 0x3c},   /* input V=480/4 */
 357         {0x53, 0x00},   /* offset X=0 */
 358         {0x54, 0x00},   /* offset Y=0 */
 359         {0x55, 0x00},   /* H/V size[8]=0 */
 360         {0x57, 0x00},   /* H-size[9]=0 */
 361         {0x5c, 0x00},   /* output size[9:8]=0 */
 362         {0x5a, 0xa0},   /* output H=640/4 */
 363         {0x5b, 0x78},   /* output V=480/4 */
 364         {0x1c, 0x0a},
 365         {0x1d, 0x0a},
 366         {0x94, 0x11},
 367 };
 368 static const u8 sensor_start_vga_767x[][2] = {
 369         {0x11, 0x01},
 370         {0x1e, 0x04},
 371         {0x19, 0x02},
 372         {0x1a, 0x7a},
 373 };
 374 static const u8 bridge_start_qvga_767x[][2] = {
 375 /* str86 JPG */
 376         {0x94, 0xaa},
 377         {0xf1, 0x42},
 378         {0xe5, 0x04},
 379         {0xc0, 0x80},
 380         {0xc1, 0x60},
 381         {0xc2, 0x0c},
 382         {0x35, 0x02},   /* turn on JPEG */
 383         {0xd9, 0x10},
 384         {0xc0, 0x50},   /* CIF HSize 640 */
 385         {0xc1, 0x3c},   /* CIF VSize 480 */
 386         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 387         {0x8d, 0x1c},   /* output YUV */
 388         {0x34, 0x05},   /* enable Audio Suspend mode */
 389         {0xc2, 0x4c},   /* output YUV and Enable DCW */
 390         {0xc3, 0xf9},   /* enable PRE */
 391         {0x1c, 0x00},   /* indirect addressing */
 392         {0x1d, 0x48},   /* output YUV422 */
 393         {0x50, 0x89},   /* H/V divider=/2; plus DCW AVG */
 394         {0x51, 0xa0},   /* DCW input H=640/4 */
 395         {0x52, 0x78},   /* DCW input V=480/4 */
 396         {0x53, 0x00},   /* offset X=0 */
 397         {0x54, 0x00},   /* offset Y=0 */
 398         {0x55, 0x00},   /* H/V size[8]=0 */
 399         {0x57, 0x00},   /* H-size[9]=0 */
 400         {0x5c, 0x00},   /* DCW output size[9:8]=0 */
 401         {0x5a, 0x50},   /* DCW output H=320/4 */
 402         {0x5b, 0x3c},   /* DCW output V=240/4 */
 403         {0x1c, 0x0a},
 404         {0x1d, 0x0a},
 405         {0x94, 0x11},
 406 };
 407 static const u8 sensor_start_qvga_767x[][2] = {
 408         {0x11, 0x01},
 409         {0x1e, 0x04},
 410         {0x19, 0x02},
 411         {0x1a, 0x7a},
 412 };
 413
 414 static const u8 bridge_init_772x[][2] = {
 415         { 0xc2, 0x0c },
 416         { 0x88, 0xf8 },
 417         { 0xc3, 0x69 },
 418         { 0x89, 0xff },
 419         { 0x76, 0x03 },
 420         { 0x92, 0x01 },
 421         { 0x93, 0x18 },
 422         { 0x94, 0x10 },
 423         { 0x95, 0x10 },
 424         { 0xe2, 0x00 },
 425         { 0xe7, 0x3e },
 426
 427         { 0x96, 0x00 },
 428
 429         { 0x97, 0x20 },
 430         { 0x97, 0x20 },
 431         { 0x97, 0x20 },
 432         { 0x97, 0x0a },
 433         { 0x97, 0x3f },
 434         { 0x97, 0x4a },
 435         { 0x97, 0x20 },
 436         { 0x97, 0x15 },
 437         { 0x97, 0x0b },
 438
 439         { 0x8e, 0x40 },
 440         { 0x1f, 0x81 },
 441         { 0x34, 0x05 },
 442         { 0xe3, 0x04 },
 443         { 0x88, 0x00 },
 444         { 0x89, 0x00 },
 445         { 0x76, 0x00 },
 446         { 0xe7, 0x2e },
 447         { 0x31, 0xf9 },
 448         { 0x25, 0x42 },
 449         { 0x21, 0xf0 },
 450
 451         { 0x1c, 0x00 },
 452         { 0x1d, 0x40 },
 453         { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
 454         { 0x1d, 0x00 }, /* payload size */
 455
 456         { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
 457         { 0x1d, 0x58 }, /* frame size */
 458         { 0x1d, 0x00 }, /* frame size */
 459
 460         { 0x1c, 0x0a },
 461         { 0x1d, 0x08 }, /* turn on UVC header */
 462         { 0x1d, 0x0e }, /* .. */
 463
 464         { 0x8d, 0x1c },
 465         { 0x8e, 0x80 },
 466         { 0xe5, 0x04 },
 467
 468         { 0xc0, 0x50 },
 469         { 0xc1, 0x3c },
 470         { 0xc2, 0x0c },
 471 };
 472 static const u8 sensor_init_772x[][2] = {
 473         { 0x12, 0x80 },
 474         { 0x11, 0x01 },
 475 /*fixme: better have a delay?*/
 476         { 0x11, 0x01 },
 477         { 0x11, 0x01 },
 478         { 0x11, 0x01 },
 479         { 0x11, 0x01 },
 480         { 0x11, 0x01 },
 481         { 0x11, 0x01 },
 482         { 0x11, 0x01 },
 483         { 0x11, 0x01 },
 484         { 0x11, 0x01 },
 485         { 0x11, 0x01 },
 486
 487         { 0x3d, 0x03 },
 488         { 0x17, 0x26 },
 489         { 0x18, 0xa0 },
 490         { 0x19, 0x07 },
 491         { 0x1a, 0xf0 },
 492         { 0x32, 0x00 },
 493         { 0x29, 0xa0 },
 494         { 0x2c, 0xf0 },
 495         { 0x65, 0x20 },
 496         { 0x11, 0x01 },
 497         { 0x42, 0x7f },
 498         { 0x63, 0xaa },         /* AWB - was e0 */
 499         { 0x64, 0xff },
 500         { 0x66, 0x00 },
 501         { 0x13, 0xf0 },         /* com8 */
 502         { 0x0d, 0x41 },
 503         { 0x0f, 0xc5 },
 504         { 0x14, 0x11 },
 505
 506         { 0x22, 0x7f },
 507         { 0x23, 0x03 },
 508         { 0x24, 0x40 },
 509         { 0x25, 0x30 },
 510         { 0x26, 0xa1 },
 511         { 0x2a, 0x00 },
 512         { 0x2b, 0x00 },
 513         { 0x6b, 0xaa },
 514         { 0x13, 0xff },         /* AWB */
 515
 516         { 0x90, 0x05 },
 517         { 0x91, 0x01 },
 518         { 0x92, 0x03 },
 519         { 0x93, 0x00 },
 520         { 0x94, 0x60 },
 521         { 0x95, 0x3c },
 522         { 0x96, 0x24 },
 523         { 0x97, 0x1e },
 524         { 0x98, 0x62 },
 525         { 0x99, 0x80 },
 526         { 0x9a, 0x1e },
 527         { 0x9b, 0x08 },
 528         { 0x9c, 0x20 },
 529         { 0x9e, 0x81 },
 530
 531         { 0xa6, 0x07 },
 532         { 0x7e, 0x0c },
 533         { 0x7f, 0x16 },
 534         { 0x80, 0x2a },
 535         { 0x81, 0x4e },
 536         { 0x82, 0x61 },
 537         { 0x83, 0x6f },
 538         { 0x84, 0x7b },
 539         { 0x85, 0x86 },
 540         { 0x86, 0x8e },
 541         { 0x87, 0x97 },
 542         { 0x88, 0xa4 },
 543         { 0x89, 0xaf },
 544         { 0x8a, 0xc5 },
 545         { 0x8b, 0xd7 },
 546         { 0x8c, 0xe8 },
 547         { 0x8d, 0x20 },
 548
 549         { 0x0c, 0x90 },
 550
 551         { 0x2b, 0x00 },
 552         { 0x22, 0x7f },
 553         { 0x23, 0x03 },
 554         { 0x11, 0x01 },
 555         { 0x0c, 0xd0 },
 556         { 0x64, 0xff },
 557         { 0x0d, 0x41 },
 558
 559         { 0x14, 0x41 },
 560         { 0x0e, 0xcd },
 561         { 0xac, 0xbf },
 562         { 0x8e, 0x00 },         /* De-noise threshold */
 563         { 0x0c, 0xd0 }
 564 };
 565 static const u8 bridge_start_vga_772x[][2] = {
 566         {0x1c, 0x00},
 567         {0x1d, 0x40},
 568         {0x1d, 0x02},
 569         {0x1d, 0x00},
 570         {0x1d, 0x02},
 571         {0x1d, 0x58},
 572         {0x1d, 0x00},
 573         {0xc0, 0x50},
 574         {0xc1, 0x3c},
 575 };
 576 static const u8 sensor_start_vga_772x[][2] = {
 577         {0x12, 0x00},
 578         {0x17, 0x26},
 579         {0x18, 0xa0},
 580         {0x19, 0x07},
 581         {0x1a, 0xf0},
 582         {0x29, 0xa0},
 583         {0x2c, 0xf0},
 584         {0x65, 0x20},
 585 };
 586 static const u8 bridge_start_qvga_772x[][2] = {
 587         {0x1c, 0x00},
 588         {0x1d, 0x40},
 589         {0x1d, 0x02},
 590         {0x1d, 0x00},
 591         {0x1d, 0x01},
 592         {0x1d, 0x4b},
 593         {0x1d, 0x00},
 594         {0xc0, 0x28},
 595         {0xc1, 0x1e},
 596 };
 597 static const u8 sensor_start_qvga_772x[][2] = {
 598         {0x12, 0x40},
 599         {0x17, 0x3f},
 600         {0x18, 0x50},
 601         {0x19, 0x03},
 602         {0x1a, 0x78},
 603         {0x29, 0x50},
 604         {0x2c, 0x78},
 605         {0x65, 0x2f},
 606 };
 607
 608 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 609 {
 610         struct usb_device *udev = gspca_dev->dev;
 611         int ret;
 612
 613         if (gspca_dev->usb_err < 0)
 614                 return;
 615
 616         PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
 617         gspca_dev->usb_buf[0] = val;
 618         ret = usb_control_msg(udev,
 619                               usb_sndctrlpipe(udev, 0),
 620                               0x01,
 621                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 622                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 623         if (ret < 0) {
 624                 pr_err("write failed %d\n", ret);
 625                 gspca_dev->usb_err = ret;
 626         }
 627 }
 628
 629 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 630 {
 631         struct usb_device *udev = gspca_dev->dev;
 632         int ret;
 633
 634         if (gspca_dev->usb_err < 0)
 635                 return 0;
 636         ret = usb_control_msg(udev,
 637                               usb_rcvctrlpipe(udev, 0),
 638                               0x01,
 639                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 640                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 641         PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
 642         if (ret < 0) {
 643                 pr_err("read failed %d\n", ret);
 644                 gspca_dev->usb_err = ret;
 645         }
 646         return gspca_dev->usb_buf[0];
 647 }
 648
 649 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 650  * (direction and output)? */
 651 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 652 {
 653         u8 data;
 654
 655         PDEBUG(D_CONF, "led status: %d", status);
 656
 657         data = ov534_reg_read(gspca_dev, 0x21);
 658         data |= 0x80;
 659         ov534_reg_write(gspca_dev, 0x21, data);
 660
 661         data = ov534_reg_read(gspca_dev, 0x23);
 662         if (status)
 663                 data |= 0x80;
 664         else
 665                 data &= ~0x80;
 666
 667         ov534_reg_write(gspca_dev, 0x23, data);
 668
 669         if (!status) {
 670                 data = ov534_reg_read(gspca_dev, 0x21);
 671                 data &= ~0x80;
 672                 ov534_reg_write(gspca_dev, 0x21, data);
 673         }
 674 }
 675
 676 static int sccb_check_status(struct gspca_dev *gspca_dev)
 677 {
 678         u8 data;
 679         int i;
 680
 681         for (i = 0; i < 5; i++) {
 682                 msleep(10);
 683                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 684
 685                 switch (data) {
 686                 case 0x00:
 687                         return 1;
 688                 case 0x04:
 689                         return 0;
 690                 case 0x03:
 691                         break;
 692                 default:
 693                         PERR("sccb status 0x%02x, attempt %d/5",
 694                                data, i + 1);
 695                 }
 696         }
 697         return 0;
 698 }
 699
 700 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 701 {
 702         PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
 703         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 704         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 705         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 706
 707         if (!sccb_check_status(gspca_dev)) {
 708                 pr_err("sccb_reg_write failed\n");
 709                 gspca_dev->usb_err = -EIO;
 710         }
 711 }
 712
 713 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 714 {
 715         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 716         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 717         if (!sccb_check_status(gspca_dev))
 718                 pr_err("sccb_reg_read failed 1\n");
 719
 720         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 721         if (!sccb_check_status(gspca_dev))
 722                 pr_err("sccb_reg_read failed 2\n");
 723
 724         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 725 }
 726
 727 /* output a bridge sequence (reg - val) */
 728 static void reg_w_array(struct gspca_dev *gspca_dev,
 729                         const u8 (*data)[2], int len)
 730 {
 731         while (--len >= 0) {
 732                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 733                 data++;
 734         }
 735 }
 736
 737 /* output a sensor sequence (reg - val) */
 738 static void sccb_w_array(struct gspca_dev *gspca_dev,
 739                         const u8 (*data)[2], int len)
 740 {
 741         while (--len >= 0) {
 742                 if ((*data)[0] != 0xff) {
 743                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 744                 } else {
 745                         sccb_reg_read(gspca_dev, (*data)[1]);
 746                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 747                 }
 748                 data++;
 749         }
 750 }
 751
 752 /* ov772x specific controls */
 753 static void set_frame_rate(struct gspca_dev *gspca_dev)
 754 {
 755         struct sd *sd = (struct sd *) gspca_dev;
 756         int i;
 757         struct rate_s {
 758                 u8 fps;
 759                 u8 r11;
 760                 u8 r0d;
 761                 u8 re5;
 762         };
 763         const struct rate_s *r;
 764         static const struct rate_s rate_0[] = { /* 640x480 */
 765                 {60, 0x01, 0xc1, 0x04},
 766                 {50, 0x01, 0x41, 0x02},
 767                 {40, 0x02, 0xc1, 0x04},
 768                 {30, 0x04, 0x81, 0x02},
 769                 {15, 0x03, 0x41, 0x04},
 770         };
 771         static const struct rate_s rate_1[] = { /* 320x240 */
 772                 {125, 0x02, 0x81, 0x02},
 773                 {100, 0x02, 0xc1, 0x04},
 774                 {75, 0x03, 0xc1, 0x04},
 775                 {60, 0x04, 0xc1, 0x04},
 776                 {50, 0x02, 0x41, 0x04},
 777                 {40, 0x03, 0x41, 0x04},
 778                 {30, 0x04, 0x41, 0x04},
 779         };
 780
 781         if (sd->sensor != SENSOR_OV772x)
 782                 return;
 783         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 784                 r = rate_0;
 785                 i = ARRAY_SIZE(rate_0);
 786         } else {
 787                 r = rate_1;
 788                 i = ARRAY_SIZE(rate_1);
 789         }
 790         while (--i > 0) {
 791                 if (sd->frame_rate >= r->fps)
 792                         break;
 793                 r++;
 794         }
 795
 796         sccb_reg_write(gspca_dev, 0x11, r->r11);
 797         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 798         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 799
 800         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 801 }
 802
 803 static void sethue(struct gspca_dev *gspca_dev, s32 val)
 804 {
 805         struct sd *sd = (struct sd *) gspca_dev;
 806
 807         if (sd->sensor == SENSOR_OV767x) {
 808                 /* TBD */
 809         } else {
 810                 s16 huesin;
 811                 s16 huecos;
 812
 813                 /* fixp_sin and fixp_cos accept only positive values, while
 814                  * our val is between -90 and 90
 815                  */
 816                 val += 360;
 817
 818                 /* According to the datasheet the registers expect HUESIN and
 819                  * HUECOS to be the result of the trigonometric functions,
 820                  * scaled by 0x80.
 821                  *
 822                  * The 0x100 here represents the maximun absolute value
 823                  * returned byt fixp_sin and fixp_cos, so the scaling will
 824                  * consider the result like in the interval [-1.0, 1.0].
 825                  */
 826                 huesin = fixp_sin(val) * 0x80 / 0x100;
 827                 huecos = fixp_cos(val) * 0x80 / 0x100;
 828
 829                 if (huesin < 0) {
 830                         sccb_reg_write(gspca_dev, 0xab,
 831                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
 832                         huesin = -huesin;
 833                 } else {
 834                         sccb_reg_write(gspca_dev, 0xab,
 835                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
 836
 837                 }
 838                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
 839                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
 840         }
 841 }
 842
 843 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
 844 {
 845         struct sd *sd = (struct sd *) gspca_dev;
 846
 847         if (sd->sensor == SENSOR_OV767x) {
 848                 int i;
 849                 static u8 color_tb[][6] = {
 850                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
 851                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
 852                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
 853                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
 854                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
 855                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
 856                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
 857                 };
 858
 859                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
 860                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
 861         } else {
 862                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
 863                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
 864         }
 865 }
 866
 867 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 868 {
 869         struct sd *sd = (struct sd *) gspca_dev;
 870
 871         if (sd->sensor == SENSOR_OV767x) {
 872                 if (val < 0)
 873                         val = 0x80 - val;
 874                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
 875         } else {
 876                 sccb_reg_write(gspca_dev, 0x9b, val);
 877         }
 878 }
 879
 880 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 881 {
 882         struct sd *sd = (struct sd *) gspca_dev;
 883
 884         if (sd->sensor == SENSOR_OV767x)
 885                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
 886         else
 887                 sccb_reg_write(gspca_dev, 0x9c, val);
 888 }
 889
 890 static void setgain(struct gspca_dev *gspca_dev, s32 val)
 891 {
 892         switch (val & 0x30) {
 893         case 0x00:
 894                 val &= 0x0f;
 895                 break;
 896         case 0x10:
 897                 val &= 0x0f;
 898                 val |= 0x30;
 899                 break;
 900         case 0x20:
 901                 val &= 0x0f;
 902                 val |= 0x70;
 903                 break;
 904         default:
 905 /*      case 0x30: */
 906                 val &= 0x0f;
 907                 val |= 0xf0;
 908                 break;
 909         }
 910         sccb_reg_write(gspca_dev, 0x00, val);
 911 }
 912
 913 static s32 getgain(struct gspca_dev *gspca_dev)
 914 {
 915         return sccb_reg_read(gspca_dev, 0x00);
 916 }
 917
 918 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 919 {
 920         struct sd *sd = (struct sd *) gspca_dev;
 921
 922         if (sd->sensor == SENSOR_OV767x) {
 923
 924                 /* set only aec[9:2] */
 925                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
 926         } else {
 927
 928                 /* 'val' is one byte and represents half of the exposure value
 929                  * we are going to set into registers, a two bytes value:
 930                  *
 931                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
 932                  *    LSB: ((u16) val << 1) & 0xff == val << 1
 933                  */
 934                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
 935                 sccb_reg_write(gspca_dev, 0x10, val << 1);
 936         }
 937 }
 938
 939 static s32 getexposure(struct gspca_dev *gspca_dev)
 940 {
 941         struct sd *sd = (struct sd *) gspca_dev;
 942
 943         if (sd->sensor == SENSOR_OV767x) {
 944                 /* get only aec[9:2] */
 945                 return sccb_reg_read(gspca_dev, 0x10);  /* aech */
 946         } else {
 947                 u8 hi = sccb_reg_read(gspca_dev, 0x08);
 948                 u8 lo = sccb_reg_read(gspca_dev, 0x10);
 949                 return (hi << 8 | lo) >> 1;
 950         }
 951 }
 952
 953 static void setagc(struct gspca_dev *gspca_dev, s32 val)
 954 {
 955         if (val) {
 956                 sccb_reg_write(gspca_dev, 0x13,
 957                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
 958                 sccb_reg_write(gspca_dev, 0x64,
 959                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
 960         } else {
 961                 sccb_reg_write(gspca_dev, 0x13,
 962                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
 963                 sccb_reg_write(gspca_dev, 0x64,
 964                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
 965         }
 966 }
 967
 968 static void setawb(struct gspca_dev *gspca_dev, s32 val)
 969 {
 970         struct sd *sd = (struct sd *) gspca_dev;
 971
 972         if (val) {
 973                 sccb_reg_write(gspca_dev, 0x13,
 974                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
 975                 if (sd->sensor == SENSOR_OV772x)
 976                         sccb_reg_write(gspca_dev, 0x63,
 977                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
 978         } else {
 979                 sccb_reg_write(gspca_dev, 0x13,
 980                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
 981                 if (sd->sensor == SENSOR_OV772x)
 982                         sccb_reg_write(gspca_dev, 0x63,
 983                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
 984         }
 985 }
 986
 987 static void setaec(struct gspca_dev *gspca_dev, s32 val)
 988 {
 989         struct sd *sd = (struct sd *) gspca_dev;
 990         u8 data;
 991
 992         data = sd->sensor == SENSOR_OV767x ?
 993                         0x05 :          /* agc + aec */
 994                         0x01;           /* agc */
 995         switch (val) {
 996         case V4L2_EXPOSURE_AUTO:
 997                 sccb_reg_write(gspca_dev, 0x13,
 998                                 sccb_reg_read(gspca_dev, 0x13) | data);
 999                 break;
1000         case V4L2_EXPOSURE_MANUAL:
1001                 sccb_reg_write(gspca_dev, 0x13,
1002                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1003                 break;
1004         }
1005 }
1006
1007 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1008 {
1009         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1010         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1011 }
1012
1013 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1014 {
1015         struct sd *sd = (struct sd *) gspca_dev;
1016         u8 val;
1017
1018         if (sd->sensor == SENSOR_OV767x) {
1019                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1020                 val &= ~0x30;
1021                 if (hflip)
1022                         val |= 0x20;
1023                 if (vflip)
1024                         val |= 0x10;
1025                 sccb_reg_write(gspca_dev, 0x1e, val);
1026         } else {
1027                 val = sccb_reg_read(gspca_dev, 0x0c);
1028                 val &= ~0xc0;
1029                 if (hflip == 0)
1030                         val |= 0x40;
1031                 if (vflip == 0)
1032                         val |= 0x80;
1033                 sccb_reg_write(gspca_dev, 0x0c, val);
1034         }
1035 }
1036
1037 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1038 {
1039         struct sd *sd = (struct sd *) gspca_dev;
1040
1041         val = val ? 0x9e : 0x00;
1042         if (sd->sensor == SENSOR_OV767x) {
1043                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1044                 if (val)
1045                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1046         }
1047         sccb_reg_write(gspca_dev, 0x2b, val);
1048 }
1049
1050
1051 /* this function is called at probe time */
1052 static int sd_config(struct gspca_dev *gspca_dev,
1053                      const struct usb_device_id *id)
1054 {
1055         struct sd *sd = (struct sd *) gspca_dev;
1056         struct cam *cam;
1057
1058         cam = &gspca_dev->cam;
1059
1060         cam->cam_mode = ov772x_mode;
1061         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1062
1063         sd->frame_rate = 30;
1064
1065         return 0;
1066 }
1067
1068 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1069 {
1070         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1071         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1072
1073         switch (ctrl->id) {
1074         case V4L2_CID_AUTOGAIN:
1075                 gspca_dev->usb_err = 0;
1076                 if (ctrl->val && sd->gain && gspca_dev->streaming)
1077                         sd->gain->val = getgain(gspca_dev);
1078                 return gspca_dev->usb_err;
1079
1080         case V4L2_CID_EXPOSURE_AUTO:
1081                 gspca_dev->usb_err = 0;
1082                 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1083                     gspca_dev->streaming)
1084                         sd->exposure->val = getexposure(gspca_dev);
1085                 return gspca_dev->usb_err;
1086         }
1087         return -EINVAL;
1088 }
1089
1090 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1091 {
1092         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1093         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1094
1095         gspca_dev->usb_err = 0;
1096         if (!gspca_dev->streaming)
1097                 return 0;
1098
1099         switch (ctrl->id) {
1100         case V4L2_CID_HUE:
1101                 sethue(gspca_dev, ctrl->val);
1102                 break;
1103         case V4L2_CID_SATURATION:
1104                 setsaturation(gspca_dev, ctrl->val);
1105                 break;
1106         case V4L2_CID_BRIGHTNESS:
1107                 setbrightness(gspca_dev, ctrl->val);
1108                 break;
1109         case V4L2_CID_CONTRAST:
1110                 setcontrast(gspca_dev, ctrl->val);
1111                 break;
1112         case V4L2_CID_AUTOGAIN:
1113         /* case V4L2_CID_GAIN: */
1114                 setagc(gspca_dev, ctrl->val);
1115                 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1116                         setgain(gspca_dev, sd->gain->val);
1117                 break;
1118         case V4L2_CID_AUTO_WHITE_BALANCE:
1119                 setawb(gspca_dev, ctrl->val);
1120                 break;
1121         case V4L2_CID_EXPOSURE_AUTO:
1122         /* case V4L2_CID_EXPOSURE: */
1123                 setaec(gspca_dev, ctrl->val);
1124                 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1125                     sd->exposure)
1126                         setexposure(gspca_dev, sd->exposure->val);
1127                 break;
1128         case V4L2_CID_SHARPNESS:
1129                 setsharpness(gspca_dev, ctrl->val);
1130                 break;
1131         case V4L2_CID_HFLIP:
1132                 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1133                 break;
1134         case V4L2_CID_VFLIP:
1135                 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1136                 break;
1137         case V4L2_CID_POWER_LINE_FREQUENCY:
1138                 setlightfreq(gspca_dev, ctrl->val);
1139                 break;
1140         }
1141         return gspca_dev->usb_err;
1142 }
1143
1144 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1145         .g_volatile_ctrl = ov534_g_volatile_ctrl,
1146         .s_ctrl = ov534_s_ctrl,
1147 };
1148
1149 static int sd_init_controls(struct gspca_dev *gspca_dev)
1150 {
1151         struct sd *sd = (struct sd *) gspca_dev;
1152         struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1153         /* parameters with different values between the supported sensors */
1154         int saturation_min;
1155         int saturation_max;
1156         int saturation_def;
1157         int brightness_min;
1158         int brightness_max;
1159         int brightness_def;
1160         int contrast_max;
1161         int contrast_def;
1162         int exposure_min;
1163         int exposure_max;
1164         int exposure_def;
1165         int hflip_def;
1166
1167         if (sd->sensor == SENSOR_OV767x) {
1168                 saturation_min = 0,
1169                 saturation_max = 6,
1170                 saturation_def = 3,
1171                 brightness_min = -127;
1172                 brightness_max = 127;
1173                 brightness_def = 0;
1174                 contrast_max = 0x80;
1175                 contrast_def = 0x40;
1176                 exposure_min = 0x08;
1177                 exposure_max = 0x60;
1178                 exposure_def = 0x13;
1179                 hflip_def = 1;
1180         } else {
1181                 saturation_min = 0,
1182                 saturation_max = 255,
1183                 saturation_def = 64,
1184                 brightness_min = 0;
1185                 brightness_max = 255;
1186                 brightness_def = 0;
1187                 contrast_max = 255;
1188                 contrast_def = 32;
1189                 exposure_min = 0;
1190                 exposure_max = 255;
1191                 exposure_def = 120;
1192                 hflip_def = 0;
1193         }
1194
1195         gspca_dev->vdev.ctrl_handler = hdl;
1196
1197         v4l2_ctrl_handler_init(hdl, 13);
1198
1199         if (sd->sensor == SENSOR_OV772x)
1200                 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1201                                 V4L2_CID_HUE, -90, 90, 1, 0);
1202
1203         sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1204                         V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1205                         saturation_def);
1206         sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1207                         V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1208                         brightness_def);
1209         sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1210                         V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1211
1212         if (sd->sensor == SENSOR_OV772x) {
1213                 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1214                                 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1215                 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1216                                 V4L2_CID_GAIN, 0, 63, 1, 20);
1217         }
1218
1219         sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1220                         V4L2_CID_EXPOSURE_AUTO,
1221                         V4L2_EXPOSURE_MANUAL, 0,
1222                         V4L2_EXPOSURE_AUTO);
1223         sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1224                         V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1225                         exposure_def);
1226
1227         sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1228                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1229
1230         if (sd->sensor == SENSOR_OV772x)
1231                 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1232                                 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1233
1234         sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1235                         V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1236         sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1237                         V4L2_CID_VFLIP, 0, 1, 1, 0);
1238         sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1239                         V4L2_CID_POWER_LINE_FREQUENCY,
1240                         V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1241                         V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1242
1243         if (hdl->error) {
1244                 pr_err("Could not initialize controls\n");
1245                 return hdl->error;
1246         }
1247
1248         if (sd->sensor == SENSOR_OV772x)
1249                 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1250
1251         v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1252                                true);
1253
1254         return 0;
1255 }
1256
1257 /* this function is called at probe and resume time */
1258 static int sd_init(struct gspca_dev *gspca_dev)
1259 {
1260         struct sd *sd = (struct sd *) gspca_dev;
1261         u16 sensor_id;
1262         static const struct reg_array bridge_init[NSENSORS] = {
1263         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1264         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1265         };
1266         static const struct reg_array sensor_init[NSENSORS] = {
1267         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1268         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1269         };
1270
1271         /* reset bridge */
1272         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1273         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1274         msleep(100);
1275
1276         /* initialize the sensor address */
1277         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1278
1279         /* reset sensor */
1280         sccb_reg_write(gspca_dev, 0x12, 0x80);
1281         msleep(10);
1282
1283         /* probe the sensor */
1284         sccb_reg_read(gspca_dev, 0x0a);
1285         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1286         sccb_reg_read(gspca_dev, 0x0b);
1287         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1288         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1289
1290         if ((sensor_id & 0xfff0) == 0x7670) {
1291                 sd->sensor = SENSOR_OV767x;
1292                 gspca_dev->cam.cam_mode = ov767x_mode;
1293                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1294         } else {
1295                 sd->sensor = SENSOR_OV772x;
1296                 gspca_dev->cam.bulk = 1;
1297                 gspca_dev->cam.bulk_size = 16384;
1298                 gspca_dev->cam.bulk_nurbs = 2;
1299                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1300         }
1301
1302         /* initialize */
1303         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1304                         bridge_init[sd->sensor].len);
1305         ov534_set_led(gspca_dev, 1);
1306         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1307                         sensor_init[sd->sensor].len);
1308         if (sd->sensor == SENSOR_OV767x)
1309                 sd_start(gspca_dev);
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 == V4L2_PIX_FMT_YUYV
1445                          && gspca_dev->image_len + len - 12 !=
1446                                    gspca_dev->width * gspca_dev->height * 2) {
1447                                 PDEBUG(D_PACK, "wrong sized frame");
1448                                 goto discard;
1449                         }
1450                         gspca_frame_add(gspca_dev, LAST_PACKET,
1451                                         data + 12, len - 12);
1452                 } else {
1453
1454                         /* Add the data from this payload */
1455                         gspca_frame_add(gspca_dev, INTER_PACKET,
1456                                         data + 12, len - 12);
1457                 }
1458
1459                 /* Done this payload */
1460                 goto scan_next;
1461
1462 discard:
1463                 /* Discard data until a new frame starts. */
1464                 gspca_dev->last_packet_type = DISCARD_PACKET;
1465
1466 scan_next:
1467                 remaining_len -= len;
1468                 data += len;
1469         } while (remaining_len > 0);
1470 }
1471
1472 /* get stream parameters (framerate) */
1473 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1474                              struct v4l2_streamparm *parm)
1475 {
1476         struct v4l2_captureparm *cp = &parm->parm.capture;
1477         struct v4l2_fract *tpf = &cp->timeperframe;
1478         struct sd *sd = (struct sd *) gspca_dev;
1479
1480         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1481         tpf->numerator = 1;
1482         tpf->denominator = sd->frame_rate;
1483 }
1484
1485 /* set stream parameters (framerate) */
1486 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1487                              struct v4l2_streamparm *parm)
1488 {
1489         struct v4l2_captureparm *cp = &parm->parm.capture;
1490         struct v4l2_fract *tpf = &cp->timeperframe;
1491         struct sd *sd = (struct sd *) gspca_dev;
1492
1493         /* Set requested framerate */
1494         sd->frame_rate = tpf->denominator / tpf->numerator;
1495         if (gspca_dev->streaming)
1496                 set_frame_rate(gspca_dev);
1497
1498         /* Return the actual framerate */
1499         tpf->numerator = 1;
1500         tpf->denominator = sd->frame_rate;
1501 }
1502
1503 /* sub-driver description */
1504 static const struct sd_desc sd_desc = {
1505         .name     = MODULE_NAME,
1506         .config   = sd_config,
1507         .init     = sd_init,
1508         .init_controls = sd_init_controls,
1509         .start    = sd_start,
1510         .stopN    = sd_stopN,
1511         .pkt_scan = sd_pkt_scan,
1512         .get_streamparm = sd_get_streamparm,
1513         .set_streamparm = sd_set_streamparm,
1514 };
1515
1516 /* -- module initialisation -- */
1517 static const struct usb_device_id device_table[] = {
1518         {USB_DEVICE(0x1415, 0x2000)},
1519         {USB_DEVICE(0x06f8, 0x3002)},
1520         {}
1521 };
1522
1523 MODULE_DEVICE_TABLE(usb, device_table);
1524
1525 /* -- device connect -- */
1526 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1527 {
1528         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1529                                 THIS_MODULE);
1530 }
1531
1532 static struct usb_driver sd_driver = {
1533         .name       = MODULE_NAME,
1534         .id_table   = device_table,
1535         .probe      = sd_probe,
1536         .disconnect = gspca_disconnect,
1537 #ifdef CONFIG_PM
1538         .suspend    = gspca_suspend,
1539         .resume     = gspca_resume,
1540         .reset_resume = gspca_resume,
1541 #endif
1542 };
1543
1544 module_usb_driver(sd_driver);