drivers/media/usb/gspca/ov534.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
ov534_reg_write
ov534_reg_read
ov534_set_led
sccb_check_status
sccb_reg_write
sccb_reg_read
reg_w_array
sccb_w_array
set_frame_rate
sethue
setsaturation
setbrightness
setcontrast
setgain
getgain
setexposure
getexposure
setagc
setawb
setaec
setsharpness
sethvflip
setlightfreq
sd_config
ov534_g_volatile_ctrl
ov534_s_ctrl
sd_init_controls
sd_init
sd_start
sd_stopN
sd_pkt_scan
sd_get_streamparm
sd_set_streamparm
sd_probe
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * ov534-ov7xxx gspca driver
   4  *
   5  * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
   6  * Copyright (C) 2008 Jim Paris <jim@jtan.com>
   7  * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
   8  *
   9  * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
  10  * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
  11  * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
  12  *
  13  * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr
  14  * PS3 Eye camera - brightness, contrast, awb, agc, aec controls
  15  *                  added by Max Thrun <bear24rw@gmail.com>
  16  * PS3 Eye camera - FPS range extended by Joseph Howse
  17  *                  <josephhowse@nummist.com> http://nummist.com
  18  */
  19 
  20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21 
  22 #define MODULE_NAME "ov534"
  23 
  24 #include "gspca.h"
  25 
  26 #include <linux/fixp-arith.h>
  27 #include <media/v4l2-ctrls.h>
  28 
  29 #define OV534_REG_ADDRESS       0xf1    /* sensor address */
  30 #define OV534_REG_SUBADDR       0xf2
  31 #define OV534_REG_WRITE         0xf3
  32 #define OV534_REG_READ          0xf4
  33 #define OV534_REG_OPERATION     0xf5
  34 #define OV534_REG_STATUS        0xf6
  35 
  36 #define OV534_OP_WRITE_3        0x37
  37 #define OV534_OP_WRITE_2        0x33
  38 #define OV534_OP_READ_2         0xf9
  39 
  40 #define CTRL_TIMEOUT 500
  41 #define DEFAULT_FRAME_RATE 30
  42 
  43 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
  44 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
  45 MODULE_LICENSE("GPL");
  46 
  47 /* specific webcam descriptor */
  48 struct sd {
  49         struct gspca_dev gspca_dev;     /* !! must be the first item */
  50 
  51         struct v4l2_ctrl_handler ctrl_handler;
  52         struct v4l2_ctrl *hue;
  53         struct v4l2_ctrl *saturation;
  54         struct v4l2_ctrl *brightness;
  55         struct v4l2_ctrl *contrast;
  56         struct { /* gain control cluster */
  57                 struct v4l2_ctrl *autogain;
  58                 struct v4l2_ctrl *gain;
  59         };
  60         struct v4l2_ctrl *autowhitebalance;
  61         struct { /* exposure control cluster */
  62                 struct v4l2_ctrl *autoexposure;
  63                 struct v4l2_ctrl *exposure;
  64         };
  65         struct v4l2_ctrl *sharpness;
  66         struct v4l2_ctrl *hflip;
  67         struct v4l2_ctrl *vflip;
  68         struct v4l2_ctrl *plfreq;
  69 
  70         __u32 last_pts;
  71         u16 last_fid;
  72         u8 frame_rate;
  73 
  74         u8 sensor;
  75 };
  76 enum sensors {
  77         SENSOR_OV767x,
  78         SENSOR_OV772x,
  79         NSENSORS
  80 };
  81 
  82 static int sd_start(struct gspca_dev *gspca_dev);
  83 static void sd_stopN(struct gspca_dev *gspca_dev);
  84 
  85 
  86 static const struct v4l2_pix_format ov772x_mode[] = {
  87         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
  88          .bytesperline = 320 * 2,
  89          .sizeimage = 320 * 240 * 2,
  90          .colorspace = V4L2_COLORSPACE_SRGB,
  91          .priv = 1},
  92         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
  93          .bytesperline = 640 * 2,
  94          .sizeimage = 640 * 480 * 2,
  95          .colorspace = V4L2_COLORSPACE_SRGB,
  96          .priv = 0},
  97         {320, 240, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
  98          .bytesperline = 320,
  99          .sizeimage = 320 * 240,
 100          .colorspace = V4L2_COLORSPACE_SRGB,
 101          .priv = 1},
 102         {640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
 103          .bytesperline = 640,
 104          .sizeimage = 640 * 480,
 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[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 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         { /* 320x240 SGBRG8 */
 132                 .rates = qvga_rates,
 133                 .nrates = ARRAY_SIZE(qvga_rates),
 134         },
 135         { /* 640x480 SGBRG8 */
 136                 .rates = vga_rates,
 137                 .nrates = ARRAY_SIZE(vga_rates),
 138         },
 139 };
 140 
 141 struct reg_array {
 142         const u8 (*val)[2];
 143         int len;
 144 };
 145 
 146 static const u8 bridge_init_767x[][2] = {
 147 /* comments from the ms-win file apollo7670.set */
 148 /* str1 */
 149         {0xf1, 0x42},
 150         {0x88, 0xf8},
 151         {0x89, 0xff},
 152         {0x76, 0x03},
 153         {0x92, 0x03},
 154         {0x95, 0x10},
 155         {0xe2, 0x00},
 156         {0xe7, 0x3e},
 157         {0x8d, 0x1c},
 158         {0x8e, 0x00},
 159         {0x8f, 0x00},
 160         {0x1f, 0x00},
 161         {0xc3, 0xf9},
 162         {0x89, 0xff},
 163         {0x88, 0xf8},
 164         {0x76, 0x03},
 165         {0x92, 0x01},
 166         {0x93, 0x18},
 167         {0x1c, 0x00},
 168         {0x1d, 0x48},
 169         {0x1d, 0x00},
 170         {0x1d, 0xff},
 171         {0x1d, 0x02},
 172         {0x1d, 0x58},
 173         {0x1d, 0x00},
 174         {0x1c, 0x0a},
 175         {0x1d, 0x0a},
 176         {0x1d, 0x0e},
 177         {0xc0, 0x50},   /* HSize 640 */
 178         {0xc1, 0x3c},   /* VSize 480 */
 179         {0x34, 0x05},   /* enable Audio Suspend mode */
 180         {0xc2, 0x0c},   /* Input YUV */
 181         {0xc3, 0xf9},   /* enable PRE */
 182         {0x34, 0x05},   /* enable Audio Suspend mode */
 183         {0xe7, 0x2e},   /* this solves failure of "SuspendResumeTest" */
 184         {0x31, 0xf9},   /* enable 1.8V Suspend */
 185         {0x35, 0x02},   /* turn on JPEG */
 186         {0xd9, 0x10},
 187         {0x25, 0x42},   /* GPIO[8]:Input */
 188         {0x94, 0x11},   /* If the default setting is loaded when
 189                          * system boots up, this flag is closed here */
 190 };
 191 static const u8 sensor_init_767x[][2] = {
 192         {0x12, 0x80},
 193         {0x11, 0x03},
 194         {0x3a, 0x04},
 195         {0x12, 0x00},
 196         {0x17, 0x13},
 197         {0x18, 0x01},
 198         {0x32, 0xb6},
 199         {0x19, 0x02},
 200         {0x1a, 0x7a},
 201         {0x03, 0x0a},
 202         {0x0c, 0x00},
 203         {0x3e, 0x00},
 204         {0x70, 0x3a},
 205         {0x71, 0x35},
 206         {0x72, 0x11},
 207         {0x73, 0xf0},
 208         {0xa2, 0x02},
 209         {0x7a, 0x2a},   /* set Gamma=1.6 below */
 210         {0x7b, 0x12},
 211         {0x7c, 0x1d},
 212         {0x7d, 0x2d},
 213         {0x7e, 0x45},
 214         {0x7f, 0x50},
 215         {0x80, 0x59},
 216         {0x81, 0x62},
 217         {0x82, 0x6b},
 218         {0x83, 0x73},
 219         {0x84, 0x7b},
 220         {0x85, 0x8a},
 221         {0x86, 0x98},
 222         {0x87, 0xb2},
 223         {0x88, 0xca},
 224         {0x89, 0xe0},
 225         {0x13, 0xe0},
 226         {0x00, 0x00},
 227         {0x10, 0x00},
 228         {0x0d, 0x40},
 229         {0x14, 0x38},   /* gain max 16x */
 230         {0xa5, 0x05},
 231         {0xab, 0x07},
 232         {0x24, 0x95},
 233         {0x25, 0x33},
 234         {0x26, 0xe3},
 235         {0x9f, 0x78},
 236         {0xa0, 0x68},
 237         {0xa1, 0x03},
 238         {0xa6, 0xd8},
 239         {0xa7, 0xd8},
 240         {0xa8, 0xf0},
 241         {0xa9, 0x90},
 242         {0xaa, 0x94},
 243         {0x13, 0xe5},
 244         {0x0e, 0x61},
 245         {0x0f, 0x4b},
 246         {0x16, 0x02},
 247         {0x21, 0x02},
 248         {0x22, 0x91},
 249         {0x29, 0x07},
 250         {0x33, 0x0b},
 251         {0x35, 0x0b},
 252         {0x37, 0x1d},
 253         {0x38, 0x71},
 254         {0x39, 0x2a},
 255         {0x3c, 0x78},
 256         {0x4d, 0x40},
 257         {0x4e, 0x20},
 258         {0x69, 0x00},
 259         {0x6b, 0x4a},
 260         {0x74, 0x10},
 261         {0x8d, 0x4f},
 262         {0x8e, 0x00},
 263         {0x8f, 0x00},
 264         {0x90, 0x00},
 265         {0x91, 0x00},
 266         {0x96, 0x00},
 267         {0x9a, 0x80},
 268         {0xb0, 0x84},
 269         {0xb1, 0x0c},
 270         {0xb2, 0x0e},
 271         {0xb3, 0x82},
 272         {0xb8, 0x0a},
 273         {0x43, 0x0a},
 274         {0x44, 0xf0},
 275         {0x45, 0x34},
 276         {0x46, 0x58},
 277         {0x47, 0x28},
 278         {0x48, 0x3a},
 279         {0x59, 0x88},
 280         {0x5a, 0x88},
 281         {0x5b, 0x44},
 282         {0x5c, 0x67},
 283         {0x5d, 0x49},
 284         {0x5e, 0x0e},
 285         {0x6c, 0x0a},
 286         {0x6d, 0x55},
 287         {0x6e, 0x11},
 288         {0x6f, 0x9f},
 289         {0x6a, 0x40},
 290         {0x01, 0x40},
 291         {0x02, 0x40},
 292         {0x13, 0xe7},
 293         {0x4f, 0x80},
 294         {0x50, 0x80},
 295         {0x51, 0x00},
 296         {0x52, 0x22},
 297         {0x53, 0x5e},
 298         {0x54, 0x80},
 299         {0x58, 0x9e},
 300         {0x41, 0x08},
 301         {0x3f, 0x00},
 302         {0x75, 0x04},
 303         {0x76, 0xe1},
 304         {0x4c, 0x00},
 305         {0x77, 0x01},
 306         {0x3d, 0xc2},
 307         {0x4b, 0x09},
 308         {0xc9, 0x60},
 309         {0x41, 0x38},   /* jfm: auto sharpness + auto de-noise  */
 310         {0x56, 0x40},
 311         {0x34, 0x11},
 312         {0x3b, 0xc2},
 313         {0xa4, 0x8a},   /* Night mode trigger point */
 314         {0x96, 0x00},
 315         {0x97, 0x30},
 316         {0x98, 0x20},
 317         {0x99, 0x20},
 318         {0x9a, 0x84},
 319         {0x9b, 0x29},
 320         {0x9c, 0x03},
 321         {0x9d, 0x4c},
 322         {0x9e, 0x3f},
 323         {0x78, 0x04},
 324         {0x79, 0x01},
 325         {0xc8, 0xf0},
 326         {0x79, 0x0f},
 327         {0xc8, 0x00},
 328         {0x79, 0x10},
 329         {0xc8, 0x7e},
 330         {0x79, 0x0a},
 331         {0xc8, 0x80},
 332         {0x79, 0x0b},
 333         {0xc8, 0x01},
 334         {0x79, 0x0c},
 335         {0xc8, 0x0f},
 336         {0x79, 0x0d},
 337         {0xc8, 0x20},
 338         {0x79, 0x09},
 339         {0xc8, 0x80},
 340         {0x79, 0x02},
 341         {0xc8, 0xc0},
 342         {0x79, 0x03},
 343         {0xc8, 0x20},
 344         {0x79, 0x26},
 345 };
 346 static const u8 bridge_start_vga_767x[][2] = {
 347 /* str59 JPG */
 348         {0x94, 0xaa},
 349         {0xf1, 0x42},
 350         {0xe5, 0x04},
 351         {0xc0, 0x50},
 352         {0xc1, 0x3c},
 353         {0xc2, 0x0c},
 354         {0x35, 0x02},   /* turn on JPEG */
 355         {0xd9, 0x10},
 356         {0xda, 0x00},   /* for higher clock rate(30fps) */
 357         {0x34, 0x05},   /* enable Audio Suspend mode */
 358         {0xc3, 0xf9},   /* enable PRE */
 359         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 360         {0x8d, 0x1c},   /* output YUV */
 361 /*      {0x34, 0x05},    * enable Audio Suspend mode (?) */
 362         {0x50, 0x00},   /* H/V divider=0 */
 363         {0x51, 0xa0},   /* input H=640/4 */
 364         {0x52, 0x3c},   /* input V=480/4 */
 365         {0x53, 0x00},   /* offset X=0 */
 366         {0x54, 0x00},   /* offset Y=0 */
 367         {0x55, 0x00},   /* H/V size[8]=0 */
 368         {0x57, 0x00},   /* H-size[9]=0 */
 369         {0x5c, 0x00},   /* output size[9:8]=0 */
 370         {0x5a, 0xa0},   /* output H=640/4 */
 371         {0x5b, 0x78},   /* output V=480/4 */
 372         {0x1c, 0x0a},
 373         {0x1d, 0x0a},
 374         {0x94, 0x11},
 375 };
 376 static const u8 sensor_start_vga_767x[][2] = {
 377         {0x11, 0x01},
 378         {0x1e, 0x04},
 379         {0x19, 0x02},
 380         {0x1a, 0x7a},
 381 };
 382 static const u8 bridge_start_qvga_767x[][2] = {
 383 /* str86 JPG */
 384         {0x94, 0xaa},
 385         {0xf1, 0x42},
 386         {0xe5, 0x04},
 387         {0xc0, 0x80},
 388         {0xc1, 0x60},
 389         {0xc2, 0x0c},
 390         {0x35, 0x02},   /* turn on JPEG */
 391         {0xd9, 0x10},
 392         {0xc0, 0x50},   /* CIF HSize 640 */
 393         {0xc1, 0x3c},   /* CIF VSize 480 */
 394         {0x8c, 0x00},   /* CIF VSize LSB[2:0] */
 395         {0x8d, 0x1c},   /* output YUV */
 396         {0x34, 0x05},   /* enable Audio Suspend mode */
 397         {0xc2, 0x4c},   /* output YUV and Enable DCW */
 398         {0xc3, 0xf9},   /* enable PRE */
 399         {0x1c, 0x00},   /* indirect addressing */
 400         {0x1d, 0x48},   /* output YUV422 */
 401         {0x50, 0x89},   /* H/V divider=/2; plus DCW AVG */
 402         {0x51, 0xa0},   /* DCW input H=640/4 */
 403         {0x52, 0x78},   /* DCW input V=480/4 */
 404         {0x53, 0x00},   /* offset X=0 */
 405         {0x54, 0x00},   /* offset Y=0 */
 406         {0x55, 0x00},   /* H/V size[8]=0 */
 407         {0x57, 0x00},   /* H-size[9]=0 */
 408         {0x5c, 0x00},   /* DCW output size[9:8]=0 */
 409         {0x5a, 0x50},   /* DCW output H=320/4 */
 410         {0x5b, 0x3c},   /* DCW output V=240/4 */
 411         {0x1c, 0x0a},
 412         {0x1d, 0x0a},
 413         {0x94, 0x11},
 414 };
 415 static const u8 sensor_start_qvga_767x[][2] = {
 416         {0x11, 0x01},
 417         {0x1e, 0x04},
 418         {0x19, 0x02},
 419         {0x1a, 0x7a},
 420 };
 421 
 422 static const u8 bridge_init_772x[][2] = {
 423         { 0x88, 0xf8 },
 424         { 0x89, 0xff },
 425         { 0x76, 0x03 },
 426         { 0x92, 0x01 },
 427         { 0x93, 0x18 },
 428         { 0x94, 0x10 },
 429         { 0x95, 0x10 },
 430         { 0xe2, 0x00 },
 431         { 0xe7, 0x3e },
 432 
 433         { 0x96, 0x00 },
 434 
 435         { 0x97, 0x20 },
 436         { 0x97, 0x20 },
 437         { 0x97, 0x20 },
 438         { 0x97, 0x0a },
 439         { 0x97, 0x3f },
 440         { 0x97, 0x4a },
 441         { 0x97, 0x20 },
 442         { 0x97, 0x15 },
 443         { 0x97, 0x0b },
 444 
 445         { 0x8e, 0x40 },
 446         { 0x1f, 0x81 },
 447         { 0x34, 0x05 },
 448         { 0xe3, 0x04 },
 449         { 0x89, 0x00 },
 450         { 0x76, 0x00 },
 451         { 0xe7, 0x2e },
 452         { 0x31, 0xf9 },
 453         { 0x25, 0x42 },
 454         { 0x21, 0xf0 },
 455 
 456         { 0x1c, 0x0a },
 457         { 0x1d, 0x08 }, /* turn on UVC header */
 458         { 0x1d, 0x0e }, /* .. */
 459 };
 460 static const u8 sensor_init_772x[][2] = {
 461         { 0x12, 0x80 },
 462         { 0x11, 0x01 },
 463 /*fixme: better have a delay?*/
 464         { 0x11, 0x01 },
 465         { 0x11, 0x01 },
 466         { 0x11, 0x01 },
 467         { 0x11, 0x01 },
 468         { 0x11, 0x01 },
 469         { 0x11, 0x01 },
 470         { 0x11, 0x01 },
 471         { 0x11, 0x01 },
 472         { 0x11, 0x01 },
 473         { 0x11, 0x01 },
 474 
 475         { 0x3d, 0x03 },
 476         { 0x17, 0x26 },
 477         { 0x18, 0xa0 },
 478         { 0x19, 0x07 },
 479         { 0x1a, 0xf0 },
 480         { 0x32, 0x00 },
 481         { 0x29, 0xa0 },
 482         { 0x2c, 0xf0 },
 483         { 0x65, 0x20 },
 484         { 0x11, 0x01 },
 485         { 0x42, 0x7f },
 486         { 0x63, 0xaa },         /* AWB - was e0 */
 487         { 0x64, 0xff },
 488         { 0x66, 0x00 },
 489         { 0x13, 0xf0 },         /* com8 */
 490         { 0x0d, 0x41 },
 491         { 0x0f, 0xc5 },
 492         { 0x14, 0x11 },
 493 
 494         { 0x22, 0x7f },
 495         { 0x23, 0x03 },
 496         { 0x24, 0x40 },
 497         { 0x25, 0x30 },
 498         { 0x26, 0xa1 },
 499         { 0x2a, 0x00 },
 500         { 0x2b, 0x00 },
 501         { 0x6b, 0xaa },
 502         { 0x13, 0xff },         /* AWB */
 503 
 504         { 0x90, 0x05 },
 505         { 0x91, 0x01 },
 506         { 0x92, 0x03 },
 507         { 0x93, 0x00 },
 508         { 0x94, 0x60 },
 509         { 0x95, 0x3c },
 510         { 0x96, 0x24 },
 511         { 0x97, 0x1e },
 512         { 0x98, 0x62 },
 513         { 0x99, 0x80 },
 514         { 0x9a, 0x1e },
 515         { 0x9b, 0x08 },
 516         { 0x9c, 0x20 },
 517         { 0x9e, 0x81 },
 518 
 519         { 0xa6, 0x07 },
 520         { 0x7e, 0x0c },
 521         { 0x7f, 0x16 },
 522         { 0x80, 0x2a },
 523         { 0x81, 0x4e },
 524         { 0x82, 0x61 },
 525         { 0x83, 0x6f },
 526         { 0x84, 0x7b },
 527         { 0x85, 0x86 },
 528         { 0x86, 0x8e },
 529         { 0x87, 0x97 },
 530         { 0x88, 0xa4 },
 531         { 0x89, 0xaf },
 532         { 0x8a, 0xc5 },
 533         { 0x8b, 0xd7 },
 534         { 0x8c, 0xe8 },
 535         { 0x8d, 0x20 },
 536 
 537         { 0x2b, 0x00 },
 538         { 0x22, 0x7f },
 539         { 0x23, 0x03 },
 540         { 0x11, 0x01 },
 541         { 0x64, 0xff },
 542         { 0x0d, 0x41 },
 543 
 544         { 0x14, 0x41 },
 545         { 0x0e, 0xcd },
 546         { 0xac, 0xbf },
 547         { 0x8e, 0x00 },         /* De-noise threshold */
 548 };
 549 static const u8 bridge_start_vga_yuyv_772x[][2] = {
 550         {0x88, 0x00},
 551         {0x1c, 0x00},
 552         {0x1d, 0x40},
 553         {0x1d, 0x02},
 554         {0x1d, 0x00},
 555         {0x1d, 0x02},
 556         {0x1d, 0x58},
 557         {0x1d, 0x00},
 558         {0x8d, 0x1c},
 559         {0x8e, 0x80},
 560         {0xc0, 0x50},
 561         {0xc1, 0x3c},
 562         {0xc2, 0x0c},
 563         {0xc3, 0x69},
 564 };
 565 static const u8 sensor_start_vga_yuyv_772x[][2] = {
 566         {0x12, 0x00},
 567         {0x17, 0x26},
 568         {0x18, 0xa0},
 569         {0x19, 0x07},
 570         {0x1a, 0xf0},
 571         {0x29, 0xa0},
 572         {0x2c, 0xf0},
 573         {0x65, 0x20},
 574         {0x67, 0x00},
 575 };
 576 static const u8 bridge_start_qvga_yuyv_772x[][2] = {
 577         {0x88, 0x00},
 578         {0x1c, 0x00},
 579         {0x1d, 0x40},
 580         {0x1d, 0x02},
 581         {0x1d, 0x00},
 582         {0x1d, 0x01},
 583         {0x1d, 0x4b},
 584         {0x1d, 0x00},
 585         {0x8d, 0x1c},
 586         {0x8e, 0x80},
 587         {0xc0, 0x28},
 588         {0xc1, 0x1e},
 589         {0xc2, 0x0c},
 590         {0xc3, 0x69},
 591 };
 592 static const u8 sensor_start_qvga_yuyv_772x[][2] = {
 593         {0x12, 0x40},
 594         {0x17, 0x3f},
 595         {0x18, 0x50},
 596         {0x19, 0x03},
 597         {0x1a, 0x78},
 598         {0x29, 0x50},
 599         {0x2c, 0x78},
 600         {0x65, 0x2f},
 601         {0x67, 0x00},
 602 };
 603 static const u8 bridge_start_vga_gbrg_772x[][2] = {
 604         {0x88, 0x08},
 605         {0x1c, 0x00},
 606         {0x1d, 0x00},
 607         {0x1d, 0x02},
 608         {0x1d, 0x00},
 609         {0x1d, 0x01},
 610         {0x1d, 0x2c},
 611         {0x1d, 0x00},
 612         {0x8d, 0x00},
 613         {0x8e, 0x00},
 614         {0xc0, 0x50},
 615         {0xc1, 0x3c},
 616         {0xc2, 0x01},
 617         {0xc3, 0x01},
 618 };
 619 static const u8 sensor_start_vga_gbrg_772x[][2] = {
 620         {0x12, 0x01},
 621         {0x17, 0x26},
 622         {0x18, 0xa0},
 623         {0x19, 0x07},
 624         {0x1a, 0xf0},
 625         {0x29, 0xa0},
 626         {0x2c, 0xf0},
 627         {0x65, 0x20},
 628         {0x67, 0x02},
 629 };
 630 static const u8 bridge_start_qvga_gbrg_772x[][2] = {
 631         {0x88, 0x08},
 632         {0x1c, 0x00},
 633         {0x1d, 0x00},
 634         {0x1d, 0x02},
 635         {0x1d, 0x00},
 636         {0x1d, 0x00},
 637         {0x1d, 0x4b},
 638         {0x1d, 0x00},
 639         {0x8d, 0x00},
 640         {0x8e, 0x00},
 641         {0xc0, 0x28},
 642         {0xc1, 0x1e},
 643         {0xc2, 0x01},
 644         {0xc3, 0x01},
 645 };
 646 static const u8 sensor_start_qvga_gbrg_772x[][2] = {
 647         {0x12, 0x41},
 648         {0x17, 0x3f},
 649         {0x18, 0x50},
 650         {0x19, 0x03},
 651         {0x1a, 0x78},
 652         {0x29, 0x50},
 653         {0x2c, 0x78},
 654         {0x65, 0x2f},
 655         {0x67, 0x02},
 656 };
 657 
 658 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 659 {
 660         struct usb_device *udev = gspca_dev->dev;
 661         int ret;
 662 
 663         if (gspca_dev->usb_err < 0)
 664                 return;
 665 
 666         gspca_dbg(gspca_dev, D_USBO, "SET 01 0000 %04x %02x\n", reg, val);
 667         gspca_dev->usb_buf[0] = val;
 668         ret = usb_control_msg(udev,
 669                               usb_sndctrlpipe(udev, 0),
 670                               0x01,
 671                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 672                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 673         if (ret < 0) {
 674                 pr_err("write failed %d\n", ret);
 675                 gspca_dev->usb_err = ret;
 676         }
 677 }
 678 
 679 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 680 {
 681         struct usb_device *udev = gspca_dev->dev;
 682         int ret;
 683 
 684         if (gspca_dev->usb_err < 0)
 685                 return 0;
 686         ret = usb_control_msg(udev,
 687                               usb_rcvctrlpipe(udev, 0),
 688                               0x01,
 689                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 690                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 691         gspca_dbg(gspca_dev, D_USBI, "GET 01 0000 %04x %02x\n",
 692                   reg, gspca_dev->usb_buf[0]);
 693         if (ret < 0) {
 694                 pr_err("read failed %d\n", ret);
 695                 gspca_dev->usb_err = ret;
 696                 /*
 697                  * Make sure the result is zeroed to avoid uninitialized
 698                  * values.
 699                  */
 700                 gspca_dev->usb_buf[0] = 0;
 701         }
 702         return gspca_dev->usb_buf[0];
 703 }
 704 
 705 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 706  * (direction and output)? */
 707 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 708 {
 709         u8 data;
 710 
 711         gspca_dbg(gspca_dev, D_CONF, "led status: %d\n", status);
 712 
 713         data = ov534_reg_read(gspca_dev, 0x21);
 714         data |= 0x80;
 715         ov534_reg_write(gspca_dev, 0x21, data);
 716 
 717         data = ov534_reg_read(gspca_dev, 0x23);
 718         if (status)
 719                 data |= 0x80;
 720         else
 721                 data &= ~0x80;
 722 
 723         ov534_reg_write(gspca_dev, 0x23, data);
 724 
 725         if (!status) {
 726                 data = ov534_reg_read(gspca_dev, 0x21);
 727                 data &= ~0x80;
 728                 ov534_reg_write(gspca_dev, 0x21, data);
 729         }
 730 }
 731 
 732 static int sccb_check_status(struct gspca_dev *gspca_dev)
 733 {
 734         u8 data;
 735         int i;
 736 
 737         for (i = 0; i < 5; i++) {
 738                 usleep_range(10000, 20000);
 739                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 740 
 741                 switch (data) {
 742                 case 0x00:
 743                         return 1;
 744                 case 0x04:
 745                         return 0;
 746                 case 0x03:
 747                         break;
 748                 default:
 749                         gspca_err(gspca_dev, "sccb status 0x%02x, attempt %d/5\n",
 750                                   data, i + 1);
 751                 }
 752         }
 753         return 0;
 754 }
 755 
 756 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 757 {
 758         gspca_dbg(gspca_dev, D_USBO, "sccb write: %02x %02x\n", reg, val);
 759         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 760         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 761         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 762 
 763         if (!sccb_check_status(gspca_dev)) {
 764                 pr_err("sccb_reg_write failed\n");
 765                 gspca_dev->usb_err = -EIO;
 766         }
 767 }
 768 
 769 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 770 {
 771         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 772         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 773         if (!sccb_check_status(gspca_dev))
 774                 pr_err("sccb_reg_read failed 1\n");
 775 
 776         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 777         if (!sccb_check_status(gspca_dev))
 778                 pr_err("sccb_reg_read failed 2\n");
 779 
 780         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 781 }
 782 
 783 /* output a bridge sequence (reg - val) */
 784 static void reg_w_array(struct gspca_dev *gspca_dev,
 785                         const u8 (*data)[2], int len)
 786 {
 787         while (--len >= 0) {
 788                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 789                 data++;
 790         }
 791 }
 792 
 793 /* output a sensor sequence (reg - val) */
 794 static void sccb_w_array(struct gspca_dev *gspca_dev,
 795                         const u8 (*data)[2], int len)
 796 {
 797         while (--len >= 0) {
 798                 if ((*data)[0] != 0xff) {
 799                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 800                 } else {
 801                         sccb_reg_read(gspca_dev, (*data)[1]);
 802                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 803                 }
 804                 data++;
 805         }
 806 }
 807 
 808 /* ov772x specific controls */
 809 static void set_frame_rate(struct gspca_dev *gspca_dev)
 810 {
 811         struct sd *sd = (struct sd *) gspca_dev;
 812         int i;
 813         struct rate_s {
 814                 u8 fps;
 815                 u8 r11;
 816                 u8 r0d;
 817                 u8 re5;
 818         };
 819         const struct rate_s *r;
 820         static const struct rate_s rate_0[] = { /* 640x480 */
 821                 {60, 0x01, 0xc1, 0x04},
 822                 {50, 0x01, 0x41, 0x02},
 823                 {40, 0x02, 0xc1, 0x04},
 824                 {30, 0x04, 0x81, 0x02},
 825                 {15, 0x03, 0x41, 0x04},
 826         };
 827         static const struct rate_s rate_1[] = { /* 320x240 */
 828 /*              {205, 0x01, 0xc1, 0x02},  * 205 FPS: video is partly corrupt */
 829                 {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */
 830                 {150, 0x01, 0xc1, 0x04},
 831                 {137, 0x02, 0xc1, 0x02},
 832                 {125, 0x02, 0x81, 0x02},
 833                 {100, 0x02, 0xc1, 0x04},
 834                 {75, 0x03, 0xc1, 0x04},
 835                 {60, 0x04, 0xc1, 0x04},
 836                 {50, 0x02, 0x41, 0x04},
 837                 {37, 0x03, 0x41, 0x04},
 838                 {30, 0x04, 0x41, 0x04},
 839         };
 840 
 841         if (sd->sensor != SENSOR_OV772x)
 842                 return;
 843         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 844                 r = rate_0;
 845                 i = ARRAY_SIZE(rate_0);
 846         } else {
 847                 r = rate_1;
 848                 i = ARRAY_SIZE(rate_1);
 849         }
 850         while (--i > 0) {
 851                 if (sd->frame_rate >= r->fps)
 852                         break;
 853                 r++;
 854         }
 855 
 856         sccb_reg_write(gspca_dev, 0x11, r->r11);
 857         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 858         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 859 
 860         gspca_dbg(gspca_dev, D_PROBE, "frame_rate: %d\n", r->fps);
 861 }
 862 
 863 static void sethue(struct gspca_dev *gspca_dev, s32 val)
 864 {
 865         struct sd *sd = (struct sd *) gspca_dev;
 866 
 867         if (sd->sensor == SENSOR_OV767x) {
 868                 /* TBD */
 869         } else {
 870                 s16 huesin;
 871                 s16 huecos;
 872 
 873                 /* According to the datasheet the registers expect HUESIN and
 874                  * HUECOS to be the result of the trigonometric functions,
 875                  * scaled by 0x80.
 876                  *
 877                  * The 0x7fff here represents the maximum absolute value
 878                  * returned byt fixp_sin and fixp_cos, so the scaling will
 879                  * consider the result like in the interval [-1.0, 1.0].
 880                  */
 881                 huesin = fixp_sin16(val) * 0x80 / 0x7fff;
 882                 huecos = fixp_cos16(val) * 0x80 / 0x7fff;
 883 
 884                 if (huesin < 0) {
 885                         sccb_reg_write(gspca_dev, 0xab,
 886                                 sccb_reg_read(gspca_dev, 0xab) | 0x2);
 887                         huesin = -huesin;
 888                 } else {
 889                         sccb_reg_write(gspca_dev, 0xab,
 890                                 sccb_reg_read(gspca_dev, 0xab) & ~0x2);
 891 
 892                 }
 893                 sccb_reg_write(gspca_dev, 0xa9, (u8)huecos);
 894                 sccb_reg_write(gspca_dev, 0xaa, (u8)huesin);
 895         }
 896 }
 897 
 898 static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
 899 {
 900         struct sd *sd = (struct sd *) gspca_dev;
 901 
 902         if (sd->sensor == SENSOR_OV767x) {
 903                 int i;
 904                 static u8 color_tb[][6] = {
 905                         {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
 906                         {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
 907                         {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
 908                         {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
 909                         {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
 910                         {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
 911                         {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
 912                 };
 913 
 914                 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
 915                         sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
 916         } else {
 917                 sccb_reg_write(gspca_dev, 0xa7, val); /* U saturation */
 918                 sccb_reg_write(gspca_dev, 0xa8, val); /* V saturation */
 919         }
 920 }
 921 
 922 static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
 923 {
 924         struct sd *sd = (struct sd *) gspca_dev;
 925 
 926         if (sd->sensor == SENSOR_OV767x) {
 927                 if (val < 0)
 928                         val = 0x80 - val;
 929                 sccb_reg_write(gspca_dev, 0x55, val);   /* bright */
 930         } else {
 931                 sccb_reg_write(gspca_dev, 0x9b, val);
 932         }
 933 }
 934 
 935 static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
 936 {
 937         struct sd *sd = (struct sd *) gspca_dev;
 938 
 939         if (sd->sensor == SENSOR_OV767x)
 940                 sccb_reg_write(gspca_dev, 0x56, val);   /* contras */
 941         else
 942                 sccb_reg_write(gspca_dev, 0x9c, val);
 943 }
 944 
 945 static void setgain(struct gspca_dev *gspca_dev, s32 val)
 946 {
 947         switch (val & 0x30) {
 948         case 0x00:
 949                 val &= 0x0f;
 950                 break;
 951         case 0x10:
 952                 val &= 0x0f;
 953                 val |= 0x30;
 954                 break;
 955         case 0x20:
 956                 val &= 0x0f;
 957                 val |= 0x70;
 958                 break;
 959         default:
 960 /*      case 0x30: */
 961                 val &= 0x0f;
 962                 val |= 0xf0;
 963                 break;
 964         }
 965         sccb_reg_write(gspca_dev, 0x00, val);
 966 }
 967 
 968 static s32 getgain(struct gspca_dev *gspca_dev)
 969 {
 970         return sccb_reg_read(gspca_dev, 0x00);
 971 }
 972 
 973 static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 974 {
 975         struct sd *sd = (struct sd *) gspca_dev;
 976 
 977         if (sd->sensor == SENSOR_OV767x) {
 978 
 979                 /* set only aec[9:2] */
 980                 sccb_reg_write(gspca_dev, 0x10, val);   /* aech */
 981         } else {
 982 
 983                 /* 'val' is one byte and represents half of the exposure value
 984                  * we are going to set into registers, a two bytes value:
 985                  *
 986                  *    MSB: ((u16) val << 1) >> 8   == val >> 7
 987                  *    LSB: ((u16) val << 1) & 0xff == val << 1
 988                  */
 989                 sccb_reg_write(gspca_dev, 0x08, val >> 7);
 990                 sccb_reg_write(gspca_dev, 0x10, val << 1);
 991         }
 992 }
 993 
 994 static s32 getexposure(struct gspca_dev *gspca_dev)
 995 {
 996         struct sd *sd = (struct sd *) gspca_dev;
 997 
 998         if (sd->sensor == SENSOR_OV767x) {
 999                 /* get only aec[9:2] */
1000                 return sccb_reg_read(gspca_dev, 0x10);  /* aech */
1001         } else {
1002                 u8 hi = sccb_reg_read(gspca_dev, 0x08);
1003                 u8 lo = sccb_reg_read(gspca_dev, 0x10);
1004                 return (hi << 8 | lo) >> 1;
1005         }
1006 }
1007 
1008 static void setagc(struct gspca_dev *gspca_dev, s32 val)
1009 {
1010         if (val) {
1011                 sccb_reg_write(gspca_dev, 0x13,
1012                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
1013                 sccb_reg_write(gspca_dev, 0x64,
1014                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
1015         } else {
1016                 sccb_reg_write(gspca_dev, 0x13,
1017                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
1018                 sccb_reg_write(gspca_dev, 0x64,
1019                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
1020         }
1021 }
1022 
1023 static void setawb(struct gspca_dev *gspca_dev, s32 val)
1024 {
1025         struct sd *sd = (struct sd *) gspca_dev;
1026 
1027         if (val) {
1028                 sccb_reg_write(gspca_dev, 0x13,
1029                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
1030                 if (sd->sensor == SENSOR_OV772x)
1031                         sccb_reg_write(gspca_dev, 0x63,
1032                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
1033         } else {
1034                 sccb_reg_write(gspca_dev, 0x13,
1035                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
1036                 if (sd->sensor == SENSOR_OV772x)
1037                         sccb_reg_write(gspca_dev, 0x63,
1038                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
1039         }
1040 }
1041 
1042 static void setaec(struct gspca_dev *gspca_dev, s32 val)
1043 {
1044         struct sd *sd = (struct sd *) gspca_dev;
1045         u8 data;
1046 
1047         data = sd->sensor == SENSOR_OV767x ?
1048                         0x05 :          /* agc + aec */
1049                         0x01;           /* agc */
1050         switch (val) {
1051         case V4L2_EXPOSURE_AUTO:
1052                 sccb_reg_write(gspca_dev, 0x13,
1053                                 sccb_reg_read(gspca_dev, 0x13) | data);
1054                 break;
1055         case V4L2_EXPOSURE_MANUAL:
1056                 sccb_reg_write(gspca_dev, 0x13,
1057                                 sccb_reg_read(gspca_dev, 0x13) & ~data);
1058                 break;
1059         }
1060 }
1061 
1062 static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
1063 {
1064         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
1065         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
1066 }
1067 
1068 static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
1069 {
1070         struct sd *sd = (struct sd *) gspca_dev;
1071         u8 val;
1072 
1073         if (sd->sensor == SENSOR_OV767x) {
1074                 val = sccb_reg_read(gspca_dev, 0x1e);   /* mvfp */
1075                 val &= ~0x30;
1076                 if (hflip)
1077                         val |= 0x20;
1078                 if (vflip)
1079                         val |= 0x10;
1080                 sccb_reg_write(gspca_dev, 0x1e, val);
1081         } else {
1082                 val = sccb_reg_read(gspca_dev, 0x0c);
1083                 val &= ~0xc0;
1084                 if (hflip == 0)
1085                         val |= 0x40;
1086                 if (vflip == 0)
1087                         val |= 0x80;
1088                 sccb_reg_write(gspca_dev, 0x0c, val);
1089         }
1090 }
1091 
1092 static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
1093 {
1094         struct sd *sd = (struct sd *) gspca_dev;
1095 
1096         val = val ? 0x9e : 0x00;
1097         if (sd->sensor == SENSOR_OV767x) {
1098                 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1099                 if (val)
1100                         val = 0x9d;     /* insert dummy to 25fps for 50Hz */
1101         }
1102         sccb_reg_write(gspca_dev, 0x2b, val);
1103 }
1104 
1105 
1106 /* this function is called at probe time */
1107 static int sd_config(struct gspca_dev *gspca_dev,
1108                      const struct usb_device_id *id)
1109 {
1110         struct sd *sd = (struct sd *) gspca_dev;
1111         struct cam *cam;
1112 
1113         cam = &gspca_dev->cam;
1114 
1115         cam->cam_mode = ov772x_mode;
1116         cam->nmodes = ARRAY_SIZE(ov772x_mode);
1117 
1118         sd->frame_rate = DEFAULT_FRAME_RATE;
1119 
1120         return 0;
1121 }
1122 
1123 static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
1124 {
1125         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1126         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1127 
1128         switch (ctrl->id) {
1129         case V4L2_CID_AUTOGAIN:
1130                 gspca_dev->usb_err = 0;
1131                 if (ctrl->val && sd->gain && gspca_dev->streaming)
1132                         sd->gain->val = getgain(gspca_dev);
1133                 return gspca_dev->usb_err;
1134 
1135         case V4L2_CID_EXPOSURE_AUTO:
1136                 gspca_dev->usb_err = 0;
1137                 if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
1138                     gspca_dev->streaming)
1139                         sd->exposure->val = getexposure(gspca_dev);
1140                 return gspca_dev->usb_err;
1141         }
1142         return -EINVAL;
1143 }
1144 
1145 static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
1146 {
1147         struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
1148         struct gspca_dev *gspca_dev = &sd->gspca_dev;
1149 
1150         gspca_dev->usb_err = 0;
1151         if (!gspca_dev->streaming)
1152                 return 0;
1153 
1154         switch (ctrl->id) {
1155         case V4L2_CID_HUE:
1156                 sethue(gspca_dev, ctrl->val);
1157                 break;
1158         case V4L2_CID_SATURATION:
1159                 setsaturation(gspca_dev, ctrl->val);
1160                 break;
1161         case V4L2_CID_BRIGHTNESS:
1162                 setbrightness(gspca_dev, ctrl->val);
1163                 break;
1164         case V4L2_CID_CONTRAST:
1165                 setcontrast(gspca_dev, ctrl->val);
1166                 break;
1167         case V4L2_CID_AUTOGAIN:
1168         /* case V4L2_CID_GAIN: */
1169                 setagc(gspca_dev, ctrl->val);
1170                 if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
1171                         setgain(gspca_dev, sd->gain->val);
1172                 break;
1173         case V4L2_CID_AUTO_WHITE_BALANCE:
1174                 setawb(gspca_dev, ctrl->val);
1175                 break;
1176         case V4L2_CID_EXPOSURE_AUTO:
1177         /* case V4L2_CID_EXPOSURE: */
1178                 setaec(gspca_dev, ctrl->val);
1179                 if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
1180                     sd->exposure)
1181                         setexposure(gspca_dev, sd->exposure->val);
1182                 break;
1183         case V4L2_CID_SHARPNESS:
1184                 setsharpness(gspca_dev, ctrl->val);
1185                 break;
1186         case V4L2_CID_HFLIP:
1187                 sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
1188                 break;
1189         case V4L2_CID_VFLIP:
1190                 sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
1191                 break;
1192         case V4L2_CID_POWER_LINE_FREQUENCY:
1193                 setlightfreq(gspca_dev, ctrl->val);
1194                 break;
1195         }
1196         return gspca_dev->usb_err;
1197 }
1198 
1199 static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
1200         .g_volatile_ctrl = ov534_g_volatile_ctrl,
1201         .s_ctrl = ov534_s_ctrl,
1202 };
1203 
1204 static int sd_init_controls(struct gspca_dev *gspca_dev)
1205 {
1206         struct sd *sd = (struct sd *) gspca_dev;
1207         struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
1208         /* parameters with different values between the supported sensors */
1209         int saturation_min;
1210         int saturation_max;
1211         int saturation_def;
1212         int brightness_min;
1213         int brightness_max;
1214         int brightness_def;
1215         int contrast_max;
1216         int contrast_def;
1217         int exposure_min;
1218         int exposure_max;
1219         int exposure_def;
1220         int hflip_def;
1221 
1222         if (sd->sensor == SENSOR_OV767x) {
1223                 saturation_min = 0,
1224                 saturation_max = 6,
1225                 saturation_def = 3,
1226                 brightness_min = -127;
1227                 brightness_max = 127;
1228                 brightness_def = 0;
1229                 contrast_max = 0x80;
1230                 contrast_def = 0x40;
1231                 exposure_min = 0x08;
1232                 exposure_max = 0x60;
1233                 exposure_def = 0x13;
1234                 hflip_def = 1;
1235         } else {
1236                 saturation_min = 0,
1237                 saturation_max = 255,
1238                 saturation_def = 64,
1239                 brightness_min = 0;
1240                 brightness_max = 255;
1241                 brightness_def = 0;
1242                 contrast_max = 255;
1243                 contrast_def = 32;
1244                 exposure_min = 0;
1245                 exposure_max = 255;
1246                 exposure_def = 120;
1247                 hflip_def = 0;
1248         }
1249 
1250         gspca_dev->vdev.ctrl_handler = hdl;
1251 
1252         v4l2_ctrl_handler_init(hdl, 13);
1253 
1254         if (sd->sensor == SENSOR_OV772x)
1255                 sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1256                                 V4L2_CID_HUE, -90, 90, 1, 0);
1257 
1258         sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1259                         V4L2_CID_SATURATION, saturation_min, saturation_max, 1,
1260                         saturation_def);
1261         sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1262                         V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1,
1263                         brightness_def);
1264         sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1265                         V4L2_CID_CONTRAST, 0, contrast_max, 1, contrast_def);
1266 
1267         if (sd->sensor == SENSOR_OV772x) {
1268                 sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1269                                 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
1270                 sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1271                                 V4L2_CID_GAIN, 0, 63, 1, 20);
1272         }
1273 
1274         sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1275                         V4L2_CID_EXPOSURE_AUTO,
1276                         V4L2_EXPOSURE_MANUAL, 0,
1277                         V4L2_EXPOSURE_AUTO);
1278         sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1279                         V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1,
1280                         exposure_def);
1281 
1282         sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1283                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
1284 
1285         if (sd->sensor == SENSOR_OV772x)
1286                 sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1287                                 V4L2_CID_SHARPNESS, 0, 63, 1, 0);
1288 
1289         sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1290                         V4L2_CID_HFLIP, 0, 1, 1, hflip_def);
1291         sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
1292                         V4L2_CID_VFLIP, 0, 1, 1, 0);
1293         sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
1294                         V4L2_CID_POWER_LINE_FREQUENCY,
1295                         V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0,
1296                         V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
1297 
1298         if (hdl->error) {
1299                 pr_err("Could not initialize controls\n");
1300                 return hdl->error;
1301         }
1302 
1303         if (sd->sensor == SENSOR_OV772x)
1304                 v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, true);
1305 
1306         v4l2_ctrl_auto_cluster(2, &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
1307                                true);
1308 
1309         return 0;
1310 }
1311 
1312 /* this function is called at probe and resume time */
1313 static int sd_init(struct gspca_dev *gspca_dev)
1314 {
1315         struct sd *sd = (struct sd *) gspca_dev;
1316         u16 sensor_id;
1317         static const struct reg_array bridge_init[NSENSORS] = {
1318         [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1319         [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1320         };
1321         static const struct reg_array sensor_init[NSENSORS] = {
1322         [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1323         [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1324         };
1325 
1326         /* reset bridge */
1327         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1328         ov534_reg_write(gspca_dev, 0xe0, 0x08);
1329         msleep(100);
1330 
1331         /* initialize the sensor address */
1332         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1333 
1334         /* reset sensor */
1335         sccb_reg_write(gspca_dev, 0x12, 0x80);
1336         usleep_range(10000, 20000);
1337 
1338         /* probe the sensor */
1339         sccb_reg_read(gspca_dev, 0x0a);
1340         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1341         sccb_reg_read(gspca_dev, 0x0b);
1342         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1343         gspca_dbg(gspca_dev, D_PROBE, "Sensor ID: %04x\n", sensor_id);
1344 
1345         if ((sensor_id & 0xfff0) == 0x7670) {
1346                 sd->sensor = SENSOR_OV767x;
1347                 gspca_dev->cam.cam_mode = ov767x_mode;
1348                 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1349         } else {
1350                 sd->sensor = SENSOR_OV772x;
1351                 gspca_dev->cam.bulk = 1;
1352                 gspca_dev->cam.bulk_size = 16384;
1353                 gspca_dev->cam.bulk_nurbs = 2;
1354                 gspca_dev->cam.mode_framerates = ov772x_framerates;
1355         }
1356 
1357         /* initialize */
1358         reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1359                         bridge_init[sd->sensor].len);
1360         ov534_set_led(gspca_dev, 1);
1361         sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1362                         sensor_init[sd->sensor].len);
1363 
1364         sd_stopN(gspca_dev);
1365 /*      set_frame_rate(gspca_dev);      */
1366 
1367         return gspca_dev->usb_err;
1368 }
1369 
1370 static int sd_start(struct gspca_dev *gspca_dev)
1371 {
1372         struct sd *sd = (struct sd *) gspca_dev;
1373         int mode;
1374         static const struct reg_array bridge_start[NSENSORS][4] = {
1375         [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1376                                         ARRAY_SIZE(bridge_start_qvga_767x)},
1377                         {bridge_start_vga_767x,
1378                                         ARRAY_SIZE(bridge_start_vga_767x)}},
1379         [SENSOR_OV772x] = {{bridge_start_qvga_yuyv_772x,
1380                                 ARRAY_SIZE(bridge_start_qvga_yuyv_772x)},
1381                         {bridge_start_vga_yuyv_772x,
1382                                 ARRAY_SIZE(bridge_start_vga_yuyv_772x)},
1383                         {bridge_start_qvga_gbrg_772x,
1384                                 ARRAY_SIZE(bridge_start_qvga_gbrg_772x)},
1385                         {bridge_start_vga_gbrg_772x,
1386                                 ARRAY_SIZE(bridge_start_vga_gbrg_772x)} },
1387         };
1388         static const struct reg_array sensor_start[NSENSORS][4] = {
1389         [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1390                                         ARRAY_SIZE(sensor_start_qvga_767x)},
1391                         {sensor_start_vga_767x,
1392                                         ARRAY_SIZE(sensor_start_vga_767x)}},
1393         [SENSOR_OV772x] = {{sensor_start_qvga_yuyv_772x,
1394                                 ARRAY_SIZE(sensor_start_qvga_yuyv_772x)},
1395                         {sensor_start_vga_yuyv_772x,
1396                                 ARRAY_SIZE(sensor_start_vga_yuyv_772x)},
1397                         {sensor_start_qvga_gbrg_772x,
1398                                 ARRAY_SIZE(sensor_start_qvga_gbrg_772x)},
1399                         {sensor_start_vga_gbrg_772x,
1400                                 ARRAY_SIZE(sensor_start_vga_gbrg_772x)} },
1401         };
1402 
1403         /* (from ms-win trace) */
1404         if (sd->sensor == SENSOR_OV767x)
1405                 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1406                                         /* black sun enable ? */
1407 
1408         mode = gspca_dev->curr_mode;    /* 0: 320x240, 1: 640x480 */
1409         reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1410                                 bridge_start[sd->sensor][mode].len);
1411         sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1412                                 sensor_start[sd->sensor][mode].len);
1413 
1414         set_frame_rate(gspca_dev);
1415 
1416         if (sd->hue)
1417                 sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
1418         setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
1419         if (sd->autogain)
1420                 setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
1421         setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
1422         setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
1423         if (sd->gain)
1424                 setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
1425         setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
1426         setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
1427         setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
1428         if (sd->sharpness)
1429                 setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
1430         sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
1431                   v4l2_ctrl_g_ctrl(sd->vflip));
1432         setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
1433 
1434         ov534_set_led(gspca_dev, 1);
1435         ov534_reg_write(gspca_dev, 0xe0, 0x00);
1436         return gspca_dev->usb_err;
1437 }
1438 
1439 static void sd_stopN(struct gspca_dev *gspca_dev)
1440 {
1441         ov534_reg_write(gspca_dev, 0xe0, 0x09);
1442         ov534_set_led(gspca_dev, 0);
1443 }
1444 
1445 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1446 #define UVC_STREAM_EOH  (1 << 7)
1447 #define UVC_STREAM_ERR  (1 << 6)
1448 #define UVC_STREAM_STI  (1 << 5)
1449 #define UVC_STREAM_RES  (1 << 4)
1450 #define UVC_STREAM_SCR  (1 << 3)
1451 #define UVC_STREAM_PTS  (1 << 2)
1452 #define UVC_STREAM_EOF  (1 << 1)
1453 #define UVC_STREAM_FID  (1 << 0)
1454 
1455 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1456                         u8 *data, int len)
1457 {
1458         struct sd *sd = (struct sd *) gspca_dev;
1459         __u32 this_pts;
1460         u16 this_fid;
1461         int remaining_len = len;
1462         int payload_len;
1463 
1464         payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1465         do {
1466                 len = min(remaining_len, payload_len);
1467 
1468                 /* Payloads are prefixed with a UVC-style header.  We
1469                    consider a frame to start when the FID toggles, or the PTS
1470                    changes.  A frame ends when EOF is set, and we've received
1471                    the correct number of bytes. */
1472 
1473                 /* Verify UVC header.  Header length is always 12 */
1474                 if (data[0] != 12 || len < 12) {
1475                         gspca_dbg(gspca_dev, D_PACK, "bad header\n");
1476                         goto discard;
1477                 }
1478 
1479                 /* Check errors */
1480                 if (data[1] & UVC_STREAM_ERR) {
1481                         gspca_dbg(gspca_dev, D_PACK, "payload error\n");
1482                         goto discard;
1483                 }
1484 
1485                 /* Extract PTS and FID */
1486                 if (!(data[1] & UVC_STREAM_PTS)) {
1487                         gspca_dbg(gspca_dev, D_PACK, "PTS not present\n");
1488                         goto discard;
1489                 }
1490                 this_pts = (data[5] << 24) | (data[4] << 16)
1491                                                 | (data[3] << 8) | data[2];
1492                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1493 
1494                 /* If PTS or FID has changed, start a new frame. */
1495                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1496                         if (gspca_dev->last_packet_type == INTER_PACKET)
1497                                 gspca_frame_add(gspca_dev, LAST_PACKET,
1498                                                 NULL, 0);
1499                         sd->last_pts = this_pts;
1500                         sd->last_fid = this_fid;
1501                         gspca_frame_add(gspca_dev, FIRST_PACKET,
1502                                         data + 12, len - 12);
1503                 /* If this packet is marked as EOF, end the frame */
1504                 } else if (data[1] & UVC_STREAM_EOF) {
1505                         sd->last_pts = 0;
1506                         if (gspca_dev->pixfmt.pixelformat != V4L2_PIX_FMT_JPEG
1507                          && gspca_dev->image_len + len - 12 !=
1508                             gspca_dev->pixfmt.sizeimage) {
1509                                 gspca_dbg(gspca_dev, D_PACK, "wrong sized frame\n");
1510                                 goto discard;
1511                         }
1512                         gspca_frame_add(gspca_dev, LAST_PACKET,
1513                                         data + 12, len - 12);
1514                 } else {
1515 
1516                         /* Add the data from this payload */
1517                         gspca_frame_add(gspca_dev, INTER_PACKET,
1518                                         data + 12, len - 12);
1519                 }
1520 
1521                 /* Done this payload */
1522                 goto scan_next;
1523 
1524 discard:
1525                 /* Discard data until a new frame starts. */
1526                 gspca_dev->last_packet_type = DISCARD_PACKET;
1527 
1528 scan_next:
1529                 remaining_len -= len;
1530                 data += len;
1531         } while (remaining_len > 0);
1532 }
1533 
1534 /* get stream parameters (framerate) */
1535 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1536                              struct v4l2_streamparm *parm)
1537 {
1538         struct v4l2_captureparm *cp = &parm->parm.capture;
1539         struct v4l2_fract *tpf = &cp->timeperframe;
1540         struct sd *sd = (struct sd *) gspca_dev;
1541 
1542         tpf->numerator = 1;
1543         tpf->denominator = sd->frame_rate;
1544 }
1545 
1546 /* set stream parameters (framerate) */
1547 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1548                              struct v4l2_streamparm *parm)
1549 {
1550         struct v4l2_captureparm *cp = &parm->parm.capture;
1551         struct v4l2_fract *tpf = &cp->timeperframe;
1552         struct sd *sd = (struct sd *) gspca_dev;
1553 
1554         if (tpf->numerator == 0 || tpf->denominator == 0)
1555                 sd->frame_rate = DEFAULT_FRAME_RATE;
1556         else
1557                 sd->frame_rate = tpf->denominator / tpf->numerator;
1558 
1559         if (gspca_dev->streaming)
1560                 set_frame_rate(gspca_dev);
1561 
1562         /* Return the actual framerate */
1563         tpf->numerator = 1;
1564         tpf->denominator = sd->frame_rate;
1565 }
1566 
1567 /* sub-driver description */
1568 static const struct sd_desc sd_desc = {
1569         .name     = MODULE_NAME,
1570         .config   = sd_config,
1571         .init     = sd_init,
1572         .init_controls = sd_init_controls,
1573         .start    = sd_start,
1574         .stopN    = sd_stopN,
1575         .pkt_scan = sd_pkt_scan,
1576         .get_streamparm = sd_get_streamparm,
1577         .set_streamparm = sd_set_streamparm,
1578 };
1579 
1580 /* -- module initialisation -- */
1581 static const struct usb_device_id device_table[] = {
1582         {USB_DEVICE(0x1415, 0x2000)},
1583         {USB_DEVICE(0x06f8, 0x3002)},
1584         {}
1585 };
1586 
1587 MODULE_DEVICE_TABLE(usb, device_table);
1588 
1589 /* -- device connect -- */
1590 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1591 {
1592         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1593                                 THIS_MODULE);
1594 }
1595 
1596 static struct usb_driver sd_driver = {
1597         .name       = MODULE_NAME,
1598         .id_table   = device_table,
1599         .probe      = sd_probe,
1600         .disconnect = gspca_disconnect,
1601 #ifdef CONFIG_PM
1602         .suspend    = gspca_suspend,
1603         .resume     = gspca_resume,
1604         .reset_resume = gspca_resume,
1605 #endif
1606 };
1607 
1608 module_usb_driver(sd_driver);
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/media/usb/gspca/ov534.c

DEFINITIONS
