drivers/media/video/gspca/ov519.c

   1 /**
   2  * OV519 driver
   3  *
   4  * Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
   5  * Copyright (C) 2009 Hans de Goede <hdegoede@redhat.com>
   6  *
   7  * This module is adapted from the ov51x-jpeg package, which itself
   8  * was adapted from the ov511 driver.
   9  *
  10  * Original copyright for the ov511 driver is:
  11  *
  12  * Copyright (c) 1999-2006 Mark W. McClelland
  13  * Support for OV519, OV8610 Copyright (c) 2003 Joerg Heckenbach
  14  * Many improvements by Bret Wallach <bwallac1@san.rr.com>
  15  * Color fixes by by Orion Sky Lawlor <olawlor@acm.org> (2/26/2000)
  16  * OV7620 fixes by Charl P. Botha <cpbotha@ieee.org>
  17  * Changes by Claudio Matsuoka <claudio@conectiva.com>
  18  *
  19  * ov51x-jpeg original copyright is:
  20  *
  21  * Copyright (c) 2004-2007 Romain Beauxis <toots@rastageeks.org>
  22  * Support for OV7670 sensors was contributed by Sam Skipsey <aoanla@yahoo.com>
  23  *
  24  * This program is free software; you can redistribute it and/or modify
  25  * it under the terms of the GNU General Public License as published by
  26  * the Free Software Foundation; either version 2 of the License, or
  27  * any later version.
  28  *
  29  * This program is distributed in the hope that it will be useful,
  30  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  31  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  32  * GNU General Public License for more details.
  33  *
  34  * You should have received a copy of the GNU General Public License
  35  * along with this program; if not, write to the Free Software
  36  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  37  *
  38  */
  39 #define MODULE_NAME "ov519"
  40
  41 #include <linux/input.h>
  42 #include "gspca.h"
  43
  44 /* The jpeg_hdr is used by w996Xcf only */
  45 /* The CONEX_CAM define for jpeg.h needs renaming, now its used here too */
  46 #define CONEX_CAM
  47 #include "jpeg.h"
  48
  49 MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
  50 MODULE_DESCRIPTION("OV519 USB Camera Driver");
  51 MODULE_LICENSE("GPL");
  52
  53 /* global parameters */
  54 static int frame_rate;
  55
  56 /* Number of times to retry a failed I2C transaction. Increase this if you
  57  * are getting "Failed to read sensor ID..." */
  58 static int i2c_detect_tries = 10;
  59
  60 /* controls */
  61 enum e_ctrl {
  62         BRIGHTNESS,
  63         CONTRAST,
  64         COLORS,
  65         HFLIP,
  66         VFLIP,
  67         AUTOBRIGHT,
  68         FREQ,
  69         NCTRL           /* number of controls */
  70 };
  71
  72 /* ov519 device descriptor */
  73 struct sd {
  74         struct gspca_dev gspca_dev;             /* !! must be the first item */
  75
  76         struct gspca_ctrl ctrls[NCTRL];
  77
  78         u8 packet_nr;
  79
  80         char bridge;
  81 #define BRIDGE_OV511            0
  82 #define BRIDGE_OV511PLUS        1
  83 #define BRIDGE_OV518            2
  84 #define BRIDGE_OV518PLUS        3
  85 #define BRIDGE_OV519            4               /* = ov530 */
  86 #define BRIDGE_OVFX2            5
  87 #define BRIDGE_W9968CF          6
  88 #define BRIDGE_MASK             7
  89
  90         char invert_led;
  91 #define BRIDGE_INVERT_LED       8
  92
  93         char snapshot_pressed;
  94         char snapshot_needs_reset;
  95
  96         /* Determined by sensor type */
  97         u8 sif;
  98
  99         u8 quality;
 100 #define QUALITY_MIN 50
 101 #define QUALITY_MAX 70
 102 #define QUALITY_DEF 50
 103
 104         u8 stopped;             /* Streaming is temporarily paused */
 105         u8 first_frame;
 106
 107         u8 frame_rate;          /* current Framerate */
 108         u8 clockdiv;            /* clockdiv override */
 109
 110         s8 sensor;              /* Type of image sensor chip (SEN_*) */
 111
 112         u8 sensor_addr;
 113         u16 sensor_width;
 114         u16 sensor_height;
 115         s16 sensor_reg_cache[256];
 116
 117         u8 jpeg_hdr[JPEG_HDR_SZ];
 118 };
 119 enum sensors {
 120         SEN_OV2610,
 121         SEN_OV3610,
 122         SEN_OV6620,
 123         SEN_OV6630,
 124         SEN_OV66308AF,
 125         SEN_OV7610,
 126         SEN_OV7620,
 127         SEN_OV7620AE,
 128         SEN_OV7640,
 129         SEN_OV7648,
 130         SEN_OV7660,
 131         SEN_OV7670,
 132         SEN_OV76BE,
 133         SEN_OV8610,
 134 };
 135
 136 /* Note this is a bit of a hack, but the w9968cf driver needs the code for all
 137    the ov sensors which is already present here. When we have the time we
 138    really should move the sensor drivers to v4l2 sub drivers. */
 139 #include "w996Xcf.c"
 140
 141 /* V4L2 controls supported by the driver */
 142 static void setbrightness(struct gspca_dev *gspca_dev);
 143 static void setcontrast(struct gspca_dev *gspca_dev);
 144 static void setcolors(struct gspca_dev *gspca_dev);
 145 static void sethvflip(struct gspca_dev *gspca_dev);
 146 static void setautobright(struct gspca_dev *gspca_dev);
 147 static void setfreq(struct gspca_dev *gspca_dev);
 148 static void setfreq_i(struct sd *sd);
 149
 150 static const struct ctrl sd_ctrls[] = {
 151 [BRIGHTNESS] = {
 152             {
 153                 .id      = V4L2_CID_BRIGHTNESS,
 154                 .type    = V4L2_CTRL_TYPE_INTEGER,
 155                 .name    = "Brightness",
 156                 .minimum = 0,
 157                 .maximum = 255,
 158                 .step    = 1,
 159                 .default_value = 127,
 160             },
 161             .set_control = setbrightness,
 162         },
 163 [CONTRAST] = {
 164             {
 165                 .id      = V4L2_CID_CONTRAST,
 166                 .type    = V4L2_CTRL_TYPE_INTEGER,
 167                 .name    = "Contrast",
 168                 .minimum = 0,
 169                 .maximum = 255,
 170                 .step    = 1,
 171                 .default_value = 127,
 172             },
 173             .set_control = setcontrast,
 174         },
 175 [COLORS] = {
 176             {
 177                 .id      = V4L2_CID_SATURATION,
 178                 .type    = V4L2_CTRL_TYPE_INTEGER,
 179                 .name    = "Color",
 180                 .minimum = 0,
 181                 .maximum = 255,
 182                 .step    = 1,
 183                 .default_value = 127,
 184             },
 185             .set_control = setcolors,
 186         },
 187 /* The flip controls work for sensors ov7660 and ov7670 only */
 188 [HFLIP] = {
 189             {
 190                 .id      = V4L2_CID_HFLIP,
 191                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 192                 .name    = "Mirror",
 193                 .minimum = 0,
 194                 .maximum = 1,
 195                 .step    = 1,
 196                 .default_value = 0,
 197             },
 198             .set_control = sethvflip,
 199         },
 200 [VFLIP] = {
 201             {
 202                 .id      = V4L2_CID_VFLIP,
 203                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 204                 .name    = "Vflip",
 205                 .minimum = 0,
 206                 .maximum = 1,
 207                 .step    = 1,
 208                 .default_value = 0,
 209             },
 210             .set_control = sethvflip,
 211         },
 212 [AUTOBRIGHT] = {
 213             {
 214                 .id      = V4L2_CID_AUTOBRIGHTNESS,
 215                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 216                 .name    = "Auto Brightness",
 217                 .minimum = 0,
 218                 .maximum = 1,
 219                 .step    = 1,
 220                 .default_value = 1,
 221             },
 222             .set_control = setautobright,
 223         },
 224 [FREQ] = {
 225             {
 226                 .id      = V4L2_CID_POWER_LINE_FREQUENCY,
 227                 .type    = V4L2_CTRL_TYPE_MENU,
 228                 .name    = "Light frequency filter",
 229                 .minimum = 0,
 230                 .maximum = 2,   /* 0: no flicker, 1: 50Hz, 2:60Hz, 3: auto */
 231                 .step    = 1,
 232                 .default_value = 0,
 233             },
 234             .set_control = setfreq,
 235         },
 236 };
 237
 238 /* table of the disabled controls */
 239 static const unsigned ctrl_dis[] = {
 240 [SEN_OV2610] =          (1 << NCTRL) - 1,       /* no control */
 241
 242 [SEN_OV3610] =          (1 << NCTRL) - 1,       /* no control */
 243
 244 [SEN_OV6620] =          (1 << HFLIP) |
 245                         (1 << VFLIP),
 246
 247 [SEN_OV6630] =          (1 << HFLIP) |
 248                         (1 << VFLIP),
 249
 250 [SEN_OV66308AF] =       (1 << HFLIP) |
 251                         (1 << VFLIP),
 252
 253 [SEN_OV7610] =          (1 << HFLIP) |
 254                         (1 << VFLIP),
 255
 256 [SEN_OV7620] =          (1 << HFLIP) |
 257                         (1 << VFLIP),
 258
 259 [SEN_OV7620AE] =        (1 << HFLIP) |
 260                         (1 << VFLIP),
 261
 262 [SEN_OV7640] =          (1 << HFLIP) |
 263                         (1 << VFLIP) |
 264                         (1 << AUTOBRIGHT) |
 265                         (1 << CONTRAST),
 266
 267 [SEN_OV7648] =          (1 << HFLIP) |
 268                         (1 << VFLIP) |
 269                         (1 << AUTOBRIGHT) |
 270                         (1 << CONTRAST),
 271
 272 [SEN_OV7660] =          (1 << AUTOBRIGHT),
 273
 274 [SEN_OV7670] =          (1 << COLORS) |
 275                         (1 << AUTOBRIGHT),
 276
 277 [SEN_OV76BE] =          (1 << HFLIP) |
 278                         (1 << VFLIP),
 279
 280 [SEN_OV8610] =          (1 << HFLIP) |
 281                         (1 << VFLIP) |
 282                         (1 << FREQ),
 283 };
 284
 285 static const struct v4l2_pix_format ov519_vga_mode[] = {
 286         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 287                 .bytesperline = 320,
 288                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 289                 .colorspace = V4L2_COLORSPACE_JPEG,
 290                 .priv = 1},
 291         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 292                 .bytesperline = 640,
 293                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 294                 .colorspace = V4L2_COLORSPACE_JPEG,
 295                 .priv = 0},
 296 };
 297 static const struct v4l2_pix_format ov519_sif_mode[] = {
 298         {160, 120, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 299                 .bytesperline = 160,
 300                 .sizeimage = 160 * 120 * 3 / 8 + 590,
 301                 .colorspace = V4L2_COLORSPACE_JPEG,
 302                 .priv = 3},
 303         {176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 304                 .bytesperline = 176,
 305                 .sizeimage = 176 * 144 * 3 / 8 + 590,
 306                 .colorspace = V4L2_COLORSPACE_JPEG,
 307                 .priv = 1},
 308         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 309                 .bytesperline = 320,
 310                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 311                 .colorspace = V4L2_COLORSPACE_JPEG,
 312                 .priv = 2},
 313         {352, 288, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 314                 .bytesperline = 352,
 315                 .sizeimage = 352 * 288 * 3 / 8 + 590,
 316                 .colorspace = V4L2_COLORSPACE_JPEG,
 317                 .priv = 0},
 318 };
 319
 320 /* Note some of the sizeimage values for the ov511 / ov518 may seem
 321    larger then necessary, however they need to be this big as the ov511 /
 322    ov518 always fills the entire isoc frame, using 0 padding bytes when
 323    it doesn't have any data. So with low framerates the amount of data
 324    transfered can become quite large (libv4l will remove all the 0 padding
 325    in userspace). */
 326 static const struct v4l2_pix_format ov518_vga_mode[] = {
 327         {320, 240, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
 328                 .bytesperline = 320,
 329                 .sizeimage = 320 * 240 * 3,
 330                 .colorspace = V4L2_COLORSPACE_JPEG,
 331                 .priv = 1},
 332         {640, 480, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
 333                 .bytesperline = 640,
 334                 .sizeimage = 640 * 480 * 2,
 335                 .colorspace = V4L2_COLORSPACE_JPEG,
 336                 .priv = 0},
 337 };
 338 static const struct v4l2_pix_format ov518_sif_mode[] = {
 339         {160, 120, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
 340                 .bytesperline = 160,
 341                 .sizeimage = 70000,
 342                 .colorspace = V4L2_COLORSPACE_JPEG,
 343                 .priv = 3},
 344         {176, 144, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
 345                 .bytesperline = 176,
 346                 .sizeimage = 70000,
 347                 .colorspace = V4L2_COLORSPACE_JPEG,
 348                 .priv = 1},
 349         {320, 240, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
 350                 .bytesperline = 320,
 351                 .sizeimage = 320 * 240 * 3,
 352                 .colorspace = V4L2_COLORSPACE_JPEG,
 353                 .priv = 2},
 354         {352, 288, V4L2_PIX_FMT_OV518, V4L2_FIELD_NONE,
 355                 .bytesperline = 352,
 356                 .sizeimage = 352 * 288 * 3,
 357                 .colorspace = V4L2_COLORSPACE_JPEG,
 358                 .priv = 0},
 359 };
 360
 361 static const struct v4l2_pix_format ov511_vga_mode[] = {
 362         {320, 240, V4L2_PIX_FMT_OV511, V4L2_FIELD_NONE,
 363                 .bytesperline = 320,
 364                 .sizeimage = 320 * 240 * 3,
 365                 .colorspace = V4L2_COLORSPACE_JPEG,
 366                 .priv = 1},
 367         {640, 480, V4L2_PIX_FMT_OV511, V4L2_FIELD_NONE,
 368                 .bytesperline = 640,
 369                 .sizeimage = 640 * 480 * 2,
 370                 .colorspace = V4L2_COLORSPACE_JPEG,
 371                 .priv = 0},
 372 };
 373 static const struct v4l2_pix_format ov511_sif_mode[] = {
 374         {160, 120, V4L2_PIX_FMT_OV511, V4L2_FIELD_NONE,
 375                 .bytesperline = 160,
 376                 .sizeimage = 70000,
 377                 .colorspace = V4L2_COLORSPACE_JPEG,
 378                 .priv = 3},
 379         {176, 144, V4L2_PIX_FMT_OV511, V4L2_FIELD_NONE,
 380                 .bytesperline = 176,
 381                 .sizeimage = 70000,
 382                 .colorspace = V4L2_COLORSPACE_JPEG,
 383                 .priv = 1},
 384         {320, 240, V4L2_PIX_FMT_OV511, V4L2_FIELD_NONE,
 385                 .bytesperline = 320,
 386                 .sizeimage = 320 * 240 * 3,
 387                 .colorspace = V4L2_COLORSPACE_JPEG,
 388                 .priv = 2},
 389         {352, 288, V4L2_PIX_FMT_OV511, V4L2_FIELD_NONE,
 390                 .bytesperline = 352,
 391                 .sizeimage = 352 * 288 * 3,
 392                 .colorspace = V4L2_COLORSPACE_JPEG,
 393                 .priv = 0},
 394 };
 395
 396 static const struct v4l2_pix_format ovfx2_vga_mode[] = {
 397         {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 398                 .bytesperline = 320,
 399                 .sizeimage = 320 * 240,
 400                 .colorspace = V4L2_COLORSPACE_SRGB,
 401                 .priv = 1},
 402         {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 403                 .bytesperline = 640,
 404                 .sizeimage = 640 * 480,
 405                 .colorspace = V4L2_COLORSPACE_SRGB,
 406                 .priv = 0},
 407 };
 408 static const struct v4l2_pix_format ovfx2_cif_mode[] = {
 409         {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 410                 .bytesperline = 160,
 411                 .sizeimage = 160 * 120,
 412                 .colorspace = V4L2_COLORSPACE_SRGB,
 413                 .priv = 3},
 414         {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 415                 .bytesperline = 176,
 416                 .sizeimage = 176 * 144,
 417                 .colorspace = V4L2_COLORSPACE_SRGB,
 418                 .priv = 1},
 419         {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 420                 .bytesperline = 320,
 421                 .sizeimage = 320 * 240,
 422                 .colorspace = V4L2_COLORSPACE_SRGB,
 423                 .priv = 2},
 424         {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 425                 .bytesperline = 352,
 426                 .sizeimage = 352 * 288,
 427                 .colorspace = V4L2_COLORSPACE_SRGB,
 428                 .priv = 0},
 429 };
 430 static const struct v4l2_pix_format ovfx2_ov2610_mode[] = {
 431         {1600, 1200, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 432                 .bytesperline = 1600,
 433                 .sizeimage = 1600 * 1200,
 434                 .colorspace = V4L2_COLORSPACE_SRGB},
 435 };
 436 static const struct v4l2_pix_format ovfx2_ov3610_mode[] = {
 437         {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 438                 .bytesperline = 640,
 439                 .sizeimage = 640 * 480,
 440                 .colorspace = V4L2_COLORSPACE_SRGB,
 441                 .priv = 1},
 442         {800, 600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 443                 .bytesperline = 800,
 444                 .sizeimage = 800 * 600,
 445                 .colorspace = V4L2_COLORSPACE_SRGB,
 446                 .priv = 1},
 447         {1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 448                 .bytesperline = 1024,
 449                 .sizeimage = 1024 * 768,
 450                 .colorspace = V4L2_COLORSPACE_SRGB,
 451                 .priv = 1},
 452         {1600, 1200, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 453                 .bytesperline = 1600,
 454                 .sizeimage = 1600 * 1200,
 455                 .colorspace = V4L2_COLORSPACE_SRGB,
 456                 .priv = 0},
 457         {2048, 1536, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 458                 .bytesperline = 2048,
 459                 .sizeimage = 2048 * 1536,
 460                 .colorspace = V4L2_COLORSPACE_SRGB,
 461                 .priv = 0},
 462 };
 463
 464 /* Registers common to OV511 / OV518 */
 465 #define R51x_FIFO_PSIZE                 0x30    /* 2 bytes wide w/ OV518(+) */
 466 #define R51x_SYS_RESET                  0x50
 467         /* Reset type flags */
 468         #define OV511_RESET_OMNICE      0x08
 469 #define R51x_SYS_INIT                   0x53
 470 #define R51x_SYS_SNAP                   0x52
 471 #define R51x_SYS_CUST_ID                0x5f
 472 #define R51x_COMP_LUT_BEGIN             0x80
 473
 474 /* OV511 Camera interface register numbers */
 475 #define R511_CAM_DELAY                  0x10
 476 #define R511_CAM_EDGE                   0x11
 477 #define R511_CAM_PXCNT                  0x12
 478 #define R511_CAM_LNCNT                  0x13
 479 #define R511_CAM_PXDIV                  0x14
 480 #define R511_CAM_LNDIV                  0x15
 481 #define R511_CAM_UV_EN                  0x16
 482 #define R511_CAM_LINE_MODE              0x17
 483 #define R511_CAM_OPTS                   0x18
 484
 485 #define R511_SNAP_FRAME                 0x19
 486 #define R511_SNAP_PXCNT                 0x1a
 487 #define R511_SNAP_LNCNT                 0x1b
 488 #define R511_SNAP_PXDIV                 0x1c
 489 #define R511_SNAP_LNDIV                 0x1d
 490 #define R511_SNAP_UV_EN                 0x1e
 491 #define R511_SNAP_OPTS                  0x1f
 492
 493 #define R511_DRAM_FLOW_CTL              0x20
 494 #define R511_FIFO_OPTS                  0x31
 495 #define R511_I2C_CTL                    0x40
 496 #define R511_SYS_LED_CTL                0x55    /* OV511+ only */
 497 #define R511_COMP_EN                    0x78
 498 #define R511_COMP_LUT_EN                0x79
 499
 500 /* OV518 Camera interface register numbers */
 501 #define R518_GPIO_OUT                   0x56    /* OV518(+) only */
 502 #define R518_GPIO_CTL                   0x57    /* OV518(+) only */
 503
 504 /* OV519 Camera interface register numbers */
 505 #define OV519_R10_H_SIZE                0x10
 506 #define OV519_R11_V_SIZE                0x11
 507 #define OV519_R12_X_OFFSETL             0x12
 508 #define OV519_R13_X_OFFSETH             0x13
 509 #define OV519_R14_Y_OFFSETL             0x14
 510 #define OV519_R15_Y_OFFSETH             0x15
 511 #define OV519_R16_DIVIDER               0x16
 512 #define OV519_R20_DFR                   0x20
 513 #define OV519_R25_FORMAT                0x25
 514
 515 /* OV519 System Controller register numbers */
 516 #define OV519_R51_RESET1                0x51
 517 #define OV519_R54_EN_CLK1               0x54
 518 #define OV519_R57_SNAPSHOT              0x57
 519
 520 #define OV519_GPIO_DATA_OUT0            0x71
 521 #define OV519_GPIO_IO_CTRL0             0x72
 522
 523 /*#define OV511_ENDPOINT_ADDRESS 1       * Isoc endpoint number */
 524
 525 /*
 526  * The FX2 chip does not give us a zero length read at end of frame.
 527  * It does, however, give a short read at the end of a frame, if
 528  * necessary, rather than run two frames together.
 529  *
 530  * By choosing the right bulk transfer size, we are guaranteed to always
 531  * get a short read for the last read of each frame.  Frame sizes are
 532  * always a composite number (width * height, or a multiple) so if we
 533  * choose a prime number, we are guaranteed that the last read of a
 534  * frame will be short.
 535  *
 536  * But it isn't that easy: the 2.6 kernel requires a multiple of 4KB,
 537  * otherwise EOVERFLOW "babbling" errors occur.  I have not been able
 538  * to figure out why.  [PMiller]
 539  *
 540  * The constant (13 * 4096) is the largest "prime enough" number less than 64KB.
 541  *
 542  * It isn't enough to know the number of bytes per frame, in case we
 543  * have data dropouts or buffer overruns (even though the FX2 double
 544  * buffers, there are some pretty strict real time constraints for
 545  * isochronous transfer for larger frame sizes).
 546  */
 547 #define OVFX2_BULK_SIZE (13 * 4096)
 548
 549 /* I2C registers */
 550 #define R51x_I2C_W_SID          0x41
 551 #define R51x_I2C_SADDR_3        0x42
 552 #define R51x_I2C_SADDR_2        0x43
 553 #define R51x_I2C_R_SID          0x44
 554 #define R51x_I2C_DATA           0x45
 555 #define R518_I2C_CTL            0x47    /* OV518(+) only */
 556 #define OVFX2_I2C_ADDR          0x00
 557
 558 /* I2C ADDRESSES */
 559 #define OV7xx0_SID   0x42
 560 #define OV_HIRES_SID 0x60               /* OV9xxx / OV2xxx / OV3xxx */
 561 #define OV8xx0_SID   0xa0
 562 #define OV6xx0_SID   0xc0
 563
 564 /* OV7610 registers */
 565 #define OV7610_REG_GAIN         0x00    /* gain setting (5:0) */
 566 #define OV7610_REG_BLUE         0x01    /* blue channel balance */
 567 #define OV7610_REG_RED          0x02    /* red channel balance */
 568 #define OV7610_REG_SAT          0x03    /* saturation */
 569 #define OV8610_REG_HUE          0x04    /* 04 reserved */
 570 #define OV7610_REG_CNT          0x05    /* Y contrast */
 571 #define OV7610_REG_BRT          0x06    /* Y brightness */
 572 #define OV7610_REG_COM_C        0x14    /* misc common regs */
 573 #define OV7610_REG_ID_HIGH      0x1c    /* manufacturer ID MSB */
 574 #define OV7610_REG_ID_LOW       0x1d    /* manufacturer ID LSB */
 575 #define OV7610_REG_COM_I        0x29    /* misc settings */
 576
 577 /* OV7660 and OV7670 registers */
 578 #define OV7670_R00_GAIN         0x00    /* Gain lower 8 bits (rest in vref) */
 579 #define OV7670_R01_BLUE         0x01    /* blue gain */
 580 #define OV7670_R02_RED          0x02    /* red gain */
 581 #define OV7670_R03_VREF         0x03    /* Pieces of GAIN, VSTART, VSTOP */
 582 #define OV7670_R04_COM1         0x04    /* Control 1 */
 583 /*#define OV7670_R07_AECHH      0x07     * AEC MS 5 bits */
 584 #define OV7670_R0C_COM3         0x0c    /* Control 3 */
 585 #define OV7670_R0D_COM4         0x0d    /* Control 4 */
 586 #define OV7670_R0E_COM5         0x0e    /* All "reserved" */
 587 #define OV7670_R0F_COM6         0x0f    /* Control 6 */
 588 #define OV7670_R10_AECH         0x10    /* More bits of AEC value */
 589 #define OV7670_R11_CLKRC        0x11    /* Clock control */
 590 #define OV7670_R12_COM7         0x12    /* Control 7 */
 591 #define   OV7670_COM7_FMT_VGA    0x00
 592 /*#define   OV7670_COM7_YUV      0x00    * YUV */
 593 #define   OV7670_COM7_FMT_QVGA   0x10   /* QVGA format */
 594 #define   OV7670_COM7_FMT_MASK   0x38
 595 #define   OV7670_COM7_RESET      0x80   /* Register reset */
 596 #define OV7670_R13_COM8         0x13    /* Control 8 */
 597 #define   OV7670_COM8_AEC        0x01   /* Auto exposure enable */
 598 #define   OV7670_COM8_AWB        0x02   /* White balance enable */
 599 #define   OV7670_COM8_AGC        0x04   /* Auto gain enable */
 600 #define   OV7670_COM8_BFILT      0x20   /* Band filter enable */
 601 #define   OV7670_COM8_AECSTEP    0x40   /* Unlimited AEC step size */
 602 #define   OV7670_COM8_FASTAEC    0x80   /* Enable fast AGC/AEC */
 603 #define OV7670_R14_COM9         0x14    /* Control 9 - gain ceiling */
 604 #define OV7670_R15_COM10        0x15    /* Control 10 */
 605 #define OV7670_R17_HSTART       0x17    /* Horiz start high bits */
 606 #define OV7670_R18_HSTOP        0x18    /* Horiz stop high bits */
 607 #define OV7670_R19_VSTART       0x19    /* Vert start high bits */
 608 #define OV7670_R1A_VSTOP        0x1a    /* Vert stop high bits */
 609 #define OV7670_R1E_MVFP         0x1e    /* Mirror / vflip */
 610 #define   OV7670_MVFP_VFLIP      0x10   /* vertical flip */
 611 #define   OV7670_MVFP_MIRROR     0x20   /* Mirror image */
 612 #define OV7670_R24_AEW          0x24    /* AGC upper limit */
 613 #define OV7670_R25_AEB          0x25    /* AGC lower limit */
 614 #define OV7670_R26_VPT          0x26    /* AGC/AEC fast mode op region */
 615 #define OV7670_R32_HREF         0x32    /* HREF pieces */
 616 #define OV7670_R3A_TSLB         0x3a    /* lots of stuff */
 617 #define OV7670_R3B_COM11        0x3b    /* Control 11 */
 618 #define   OV7670_COM11_EXP       0x02
 619 #define   OV7670_COM11_HZAUTO    0x10   /* Auto detect 50/60 Hz */
 620 #define OV7670_R3C_COM12        0x3c    /* Control 12 */
 621 #define OV7670_R3D_COM13        0x3d    /* Control 13 */
 622 #define   OV7670_COM13_GAMMA     0x80   /* Gamma enable */
 623 #define   OV7670_COM13_UVSAT     0x40   /* UV saturation auto adjustment */
 624 #define OV7670_R3E_COM14        0x3e    /* Control 14 */
 625 #define OV7670_R3F_EDGE         0x3f    /* Edge enhancement factor */
 626 #define OV7670_R40_COM15        0x40    /* Control 15 */
 627 /*#define   OV7670_COM15_R00FF   0xc0    *      00 to FF */
 628 #define OV7670_R41_COM16        0x41    /* Control 16 */
 629 #define   OV7670_COM16_AWBGAIN   0x08   /* AWB gain enable */
 630 /* end of ov7660 common registers */
 631 #define OV7670_R55_BRIGHT       0x55    /* Brightness */
 632 #define OV7670_R56_CONTRAS      0x56    /* Contrast control */
 633 #define OV7670_R69_GFIX         0x69    /* Fix gain control */
 634 /*#define OV7670_R8C_RGB444     0x8c     * RGB 444 control */
 635 #define OV7670_R9F_HAECC1       0x9f    /* Hist AEC/AGC control 1 */
 636 #define OV7670_RA0_HAECC2       0xa0    /* Hist AEC/AGC control 2 */
 637 #define OV7670_RA5_BD50MAX      0xa5    /* 50hz banding step limit */
 638 #define OV7670_RA6_HAECC3       0xa6    /* Hist AEC/AGC control 3 */
 639 #define OV7670_RA7_HAECC4       0xa7    /* Hist AEC/AGC control 4 */
 640 #define OV7670_RA8_HAECC5       0xa8    /* Hist AEC/AGC control 5 */
 641 #define OV7670_RA9_HAECC6       0xa9    /* Hist AEC/AGC control 6 */
 642 #define OV7670_RAA_HAECC7       0xaa    /* Hist AEC/AGC control 7 */
 643 #define OV7670_RAB_BD60MAX      0xab    /* 60hz banding step limit */
 644
 645 struct ov_regvals {
 646         u8 reg;
 647         u8 val;
 648 };
 649 struct ov_i2c_regvals {
 650         u8 reg;
 651         u8 val;
 652 };
 653
 654 /* Settings for OV2610 camera chip */
 655 static const struct ov_i2c_regvals norm_2610[] = {
 656         { 0x12, 0x80 }, /* reset */
 657 };
 658
 659 static const struct ov_i2c_regvals norm_3620b[] = {
 660         /*
 661          * From the datasheet: "Note that after writing to register COMH
 662          * (0x12) to change the sensor mode, registers related to the
 663          * sensor’s cropping window will be reset back to their default
 664          * values."
 665          *
 666          * "wait 4096 external clock ... to make sure the sensor is
 667          * stable and ready to access registers" i.e. 160us at 24MHz
 668          */
 669         { 0x12, 0x80 }, /* COMH reset */
 670         { 0x12, 0x00 }, /* QXGA, master */
 671
 672         /*
 673          * 11 CLKRC "Clock Rate Control"
 674          * [7] internal frequency doublers: on
 675          * [6] video port mode: master
 676          * [5:0] clock divider: 1
 677          */
 678         { 0x11, 0x80 },
 679
 680         /*
 681          * 13 COMI "Common Control I"
 682          *                  = 192 (0xC0) 11000000
 683          *    COMI[7] "AEC speed selection"
 684          *                  =   1 (0x01) 1....... "Faster AEC correction"
 685          *    COMI[6] "AEC speed step selection"
 686          *                  =   1 (0x01) .1...... "Big steps, fast"
 687          *    COMI[5] "Banding filter on off"
 688          *                  =   0 (0x00) ..0..... "Off"
 689          *    COMI[4] "Banding filter option"
 690          *                  =   0 (0x00) ...0.... "Main clock is 48 MHz and
 691          *                                         the PLL is ON"
 692          *    COMI[3] "Reserved"
 693          *                  =   0 (0x00) ....0...
 694          *    COMI[2] "AGC auto manual control selection"
 695          *                  =   0 (0x00) .....0.. "Manual"
 696          *    COMI[1] "AWB auto manual control selection"
 697          *                  =   0 (0x00) ......0. "Manual"
 698          *    COMI[0] "Exposure control"
 699          *                  =   0 (0x00) .......0 "Manual"
 700          */
 701         { 0x13, 0xc0 },
 702
 703         /*
 704          * 09 COMC "Common Control C"
 705          *                  =   8 (0x08) 00001000
 706          *    COMC[7:5] "Reserved"
 707          *                  =   0 (0x00) 000.....
 708          *    COMC[4] "Sleep Mode Enable"
 709          *                  =   0 (0x00) ...0.... "Normal mode"
 710          *    COMC[3:2] "Sensor sampling reset timing selection"
 711          *                  =   2 (0x02) ....10.. "Longer reset time"
 712          *    COMC[1:0] "Output drive current select"
 713          *                  =   0 (0x00) ......00 "Weakest"
 714          */
 715         { 0x09, 0x08 },
 716
 717         /*
 718          * 0C COMD "Common Control D"
 719          *                  =   8 (0x08) 00001000
 720          *    COMD[7] "Reserved"
 721          *                  =   0 (0x00) 0.......
 722          *    COMD[6] "Swap MSB and LSB at the output port"
 723          *                  =   0 (0x00) .0...... "False"
 724          *    COMD[5:3] "Reserved"
 725          *                  =   1 (0x01) ..001...
 726          *    COMD[2] "Output Average On Off"
 727          *                  =   0 (0x00) .....0.. "Output Normal"
 728          *    COMD[1] "Sensor precharge voltage selection"
 729          *                  =   0 (0x00) ......0. "Selects internal
 730          *                                         reference precharge
 731          *                                         voltage"
 732          *    COMD[0] "Snapshot option"
 733          *                  =   0 (0x00) .......0 "Enable live video output
 734          *                                         after snapshot sequence"
 735          */
 736         { 0x0c, 0x08 },
 737
 738         /*
 739          * 0D COME "Common Control E"
 740          *                  = 161 (0xA1) 10100001
 741          *    COME[7] "Output average option"
 742          *                  =   1 (0x01) 1....... "Output average of 4 pixels"
 743          *    COME[6] "Anti-blooming control"
 744          *                  =   0 (0x00) .0...... "Off"
 745          *    COME[5:3] "Reserved"
 746          *                  =   4 (0x04) ..100...
 747          *    COME[2] "Clock output power down pin status"
 748          *                  =   0 (0x00) .....0.. "Tri-state data output pin
 749          *                                         on power down"
 750          *    COME[1] "Data output pin status selection at power down"
 751          *                  =   0 (0x00) ......0. "Tri-state VSYNC, PCLK,
 752          *                                         HREF, and CHSYNC pins on
 753          *                                         power down"
 754          *    COME[0] "Auto zero circuit select"
 755          *                  =   1 (0x01) .......1 "On"
 756          */
 757         { 0x0d, 0xa1 },
 758
 759         /*
 760          * 0E COMF "Common Control F"
 761          *                  = 112 (0x70) 01110000
 762          *    COMF[7] "System clock selection"
 763          *                  =   0 (0x00) 0....... "Use 24 MHz system clock"
 764          *    COMF[6:4] "Reserved"
 765          *                  =   7 (0x07) .111....
 766          *    COMF[3] "Manual auto negative offset canceling selection"
 767          *                  =   0 (0x00) ....0... "Auto detect negative
 768          *                                         offset and cancel it"
 769          *    COMF[2:0] "Reserved"
 770          *                  =   0 (0x00) .....000
 771          */
 772         { 0x0e, 0x70 },
 773
 774         /*
 775          * 0F COMG "Common Control G"
 776          *                  =  66 (0x42) 01000010
 777          *    COMG[7] "Optical black output selection"
 778          *                  =   0 (0x00) 0....... "Disable"
 779          *    COMG[6] "Black level calibrate selection"
 780          *                  =   1 (0x01) .1...... "Use optical black pixels
 781          *                                         to calibrate"
 782          *    COMG[5:4] "Reserved"
 783          *                  =   0 (0x00) ..00....
 784          *    COMG[3] "Channel offset adjustment"
 785          *                  =   0 (0x00) ....0... "Disable offset adjustment"
 786          *    COMG[2] "ADC black level calibration option"
 787          *                  =   0 (0x00) .....0.. "Use B/G line and G/R
 788          *                                         line to calibrate each
 789          *                                         channel's black level"
 790          *    COMG[1] "Reserved"
 791          *                  =   1 (0x01) ......1.
 792          *    COMG[0] "ADC black level calibration enable"
 793          *                  =   0 (0x00) .......0 "Disable"
 794          */
 795         { 0x0f, 0x42 },
 796
 797         /*
 798          * 14 COMJ "Common Control J"
 799          *                  = 198 (0xC6) 11000110
 800          *    COMJ[7:6] "AGC gain ceiling"
 801          *                  =   3 (0x03) 11...... "8x"
 802          *    COMJ[5:4] "Reserved"
 803          *                  =   0 (0x00) ..00....
 804          *    COMJ[3] "Auto banding filter"
 805          *                  =   0 (0x00) ....0... "Banding filter is always
 806          *                                         on off depending on
 807          *                                         COMI[5] setting"
 808          *    COMJ[2] "VSYNC drop option"
 809          *                  =   1 (0x01) .....1.. "SYNC is dropped if frame
 810          *                                         data is dropped"
 811          *    COMJ[1] "Frame data drop"
 812          *                  =   1 (0x01) ......1. "Drop frame data if
 813          *                                         exposure is not within
 814          *                                         tolerance.  In AEC mode,
 815          *                                         data is normally dropped
 816          *                                         when data is out of
 817          *                                         range."
 818          *    COMJ[0] "Reserved"
 819          *                  =   0 (0x00) .......0
 820          */
 821         { 0x14, 0xc6 },
 822
 823         /*
 824          * 15 COMK "Common Control K"
 825          *                  =   2 (0x02) 00000010
 826          *    COMK[7] "CHSYNC pin output swap"
 827          *                  =   0 (0x00) 0....... "CHSYNC"
 828          *    COMK[6] "HREF pin output swap"
 829          *                  =   0 (0x00) .0...... "HREF"
 830          *    COMK[5] "PCLK output selection"
 831          *                  =   0 (0x00) ..0..... "PCLK always output"
 832          *    COMK[4] "PCLK edge selection"
 833          *                  =   0 (0x00) ...0.... "Data valid on falling edge"
 834          *    COMK[3] "HREF output polarity"
 835          *                  =   0 (0x00) ....0... "positive"
 836          *    COMK[2] "Reserved"
 837          *                  =   0 (0x00) .....0..
 838          *    COMK[1] "VSYNC polarity"
 839          *                  =   1 (0x01) ......1. "negative"
 840          *    COMK[0] "HSYNC polarity"
 841          *                  =   0 (0x00) .......0 "positive"
 842          */
 843         { 0x15, 0x02 },
 844
 845         /*
 846          * 33 CHLF "Current Control"
 847          *                  =   9 (0x09) 00001001
 848          *    CHLF[7:6] "Sensor current control"
 849          *                  =   0 (0x00) 00......
 850          *    CHLF[5] "Sensor current range control"
 851          *                  =   0 (0x00) ..0..... "normal range"
 852          *    CHLF[4] "Sensor current"
 853          *                  =   0 (0x00) ...0.... "normal current"
 854          *    CHLF[3] "Sensor buffer current control"
 855          *                  =   1 (0x01) ....1... "half current"
 856          *    CHLF[2] "Column buffer current control"
 857          *                  =   0 (0x00) .....0.. "normal current"
 858          *    CHLF[1] "Analog DSP current control"
 859          *                  =   0 (0x00) ......0. "normal current"
 860          *    CHLF[1] "ADC current control"
 861          *                  =   0 (0x00) ......0. "normal current"
 862          */
 863         { 0x33, 0x09 },
 864
 865         /*
 866          * 34 VBLM "Blooming Control"
 867          *                  =  80 (0x50) 01010000
 868          *    VBLM[7] "Hard soft reset switch"
 869          *                  =   0 (0x00) 0....... "Hard reset"
 870          *    VBLM[6:4] "Blooming voltage selection"
 871          *                  =   5 (0x05) .101....
 872          *    VBLM[3:0] "Sensor current control"
 873          *                  =   0 (0x00) ....0000
 874          */
 875         { 0x34, 0x50 },
 876
 877         /*
 878          * 36 VCHG "Sensor Precharge Voltage Control"
 879          *                  =   0 (0x00) 00000000
 880          *    VCHG[7] "Reserved"
 881          *                  =   0 (0x00) 0.......
 882          *    VCHG[6:4] "Sensor precharge voltage control"
 883          *                  =   0 (0x00) .000....
 884          *    VCHG[3:0] "Sensor array common reference"
 885          *                  =   0 (0x00) ....0000
 886          */
 887         { 0x36, 0x00 },
 888
 889         /*
 890          * 37 ADC "ADC Reference Control"
 891          *                  =   4 (0x04) 00000100
 892          *    ADC[7:4] "Reserved"
 893          *                  =   0 (0x00) 0000....
 894          *    ADC[3] "ADC input signal range"
 895          *                  =   0 (0x00) ....0... "Input signal 1.0x"
 896          *    ADC[2:0] "ADC range control"
 897          *                  =   4 (0x04) .....100
 898          */
 899         { 0x37, 0x04 },
 900
 901         /*
 902          * 38 ACOM "Analog Common Ground"
 903          *                  =  82 (0x52) 01010010
 904          *    ACOM[7] "Analog gain control"
 905          *                  =   0 (0x00) 0....... "Gain 1x"
 906          *    ACOM[6] "Analog black level calibration"
 907          *                  =   1 (0x01) .1...... "On"
 908          *    ACOM[5:0] "Reserved"
 909          *                  =  18 (0x12) ..010010
 910          */
 911         { 0x38, 0x52 },
 912
 913         /*
 914          * 3A FREFA "Internal Reference Adjustment"
 915          *                  =   0 (0x00) 00000000
 916          *    FREFA[7:0] "Range"
 917          *                  =   0 (0x00) 00000000
 918          */
 919         { 0x3a, 0x00 },
 920
 921         /*
 922          * 3C FVOPT "Internal Reference Adjustment"
 923          *                  =  31 (0x1F) 00011111
 924          *    FVOPT[7:0] "Range"
 925          *                  =  31 (0x1F) 00011111
 926          */
 927         { 0x3c, 0x1f },
 928
 929         /*
 930          * 44 Undocumented  =   0 (0x00) 00000000
 931          *    44[7:0] "It's a secret"
 932          *                  =   0 (0x00) 00000000
 933          */
 934         { 0x44, 0x00 },
 935
 936         /*
 937          * 40 Undocumented  =   0 (0x00) 00000000
 938          *    40[7:0] "It's a secret"
 939          *                  =   0 (0x00) 00000000
 940          */
 941         { 0x40, 0x00 },
 942
 943         /*
 944          * 41 Undocumented  =   0 (0x00) 00000000
 945          *    41[7:0] "It's a secret"
 946          *                  =   0 (0x00) 00000000
 947          */
 948         { 0x41, 0x00 },
 949
 950         /*
 951          * 42 Undocumented  =   0 (0x00) 00000000
 952          *    42[7:0] "It's a secret"
 953          *                  =   0 (0x00) 00000000
 954          */
 955         { 0x42, 0x00 },
 956
 957         /*
 958          * 43 Undocumented  =   0 (0x00) 00000000
 959          *    43[7:0] "It's a secret"
 960          *                  =   0 (0x00) 00000000
 961          */
 962         { 0x43, 0x00 },
 963
 964         /*
 965          * 45 Undocumented  = 128 (0x80) 10000000
 966          *    45[7:0] "It's a secret"
 967          *                  = 128 (0x80) 10000000
 968          */
 969         { 0x45, 0x80 },
 970
 971         /*
 972          * 48 Undocumented  = 192 (0xC0) 11000000
 973          *    48[7:0] "It's a secret"
 974          *                  = 192 (0xC0) 11000000
 975          */
 976         { 0x48, 0xc0 },
 977
 978         /*
 979          * 49 Undocumented  =  25 (0x19) 00011001
 980          *    49[7:0] "It's a secret"
 981          *                  =  25 (0x19) 00011001
 982          */
 983         { 0x49, 0x19 },
 984
 985         /*
 986          * 4B Undocumented  = 128 (0x80) 10000000
 987          *    4B[7:0] "It's a secret"
 988          *                  = 128 (0x80) 10000000
 989          */
 990         { 0x4b, 0x80 },
 991
 992         /*
 993          * 4D Undocumented  = 196 (0xC4) 11000100
 994          *    4D[7:0] "It's a secret"
 995          *                  = 196 (0xC4) 11000100
 996          */
 997         { 0x4d, 0xc4 },
 998
 999         /*
1000          * 35 VREF "Reference Voltage Control"
1001          *                  =  76 (0x4c) 01001100
1002          *    VREF[7:5] "Column high reference control"
1003          *                  =   2 (0x02) 010..... "higher voltage"
1004          *    VREF[4:2] "Column low reference control"
1005          *                  =   3 (0x03) ...011.. "Highest voltage"
1006          *    VREF[1:0] "Reserved"
1007          *                  =   0 (0x00) ......00
1008          */
1009         { 0x35, 0x4c },
1010
1011         /*
1012          * 3D Undocumented  =   0 (0x00) 00000000
1013          *    3D[7:0] "It's a secret"
1014          *                  =   0 (0x00) 00000000
1015          */
1016         { 0x3d, 0x00 },
1017
1018         /*
1019          * 3E Undocumented  =   0 (0x00) 00000000
1020          *    3E[7:0] "It's a secret"
1021          *                  =   0 (0x00) 00000000
1022          */
1023         { 0x3e, 0x00 },
1024
1025         /*
1026          * 3B FREFB "Internal Reference Adjustment"
1027          *                  =  24 (0x18) 00011000
1028          *    FREFB[7:0] "Range"
1029          *                  =  24 (0x18) 00011000
1030          */
1031         { 0x3b, 0x18 },
1032
1033         /*
1034          * 33 CHLF "Current Control"
1035          *                  =  25 (0x19) 00011001
1036          *    CHLF[7:6] "Sensor current control"
1037          *                  =   0 (0x00) 00......
1038          *    CHLF[5] "Sensor current range control"
1039          *                  =   0 (0x00) ..0..... "normal range"
1040          *    CHLF[4] "Sensor current"
1041          *                  =   1 (0x01) ...1.... "double current"
1042          *    CHLF[3] "Sensor buffer current control"
1043          *                  =   1 (0x01) ....1... "half current"
1044          *    CHLF[2] "Column buffer current control"
1045          *                  =   0 (0x00) .....0.. "normal current"
1046          *    CHLF[1] "Analog DSP current control"
1047          *                  =   0 (0x00) ......0. "normal current"
1048          *    CHLF[1] "ADC current control"
1049          *                  =   0 (0x00) ......0. "normal current"
1050          */
1051         { 0x33, 0x19 },
1052
1053         /*
1054          * 34 VBLM "Blooming Control"
1055          *                  =  90 (0x5A) 01011010
1056          *    VBLM[7] "Hard soft reset switch"
1057          *                  =   0 (0x00) 0....... "Hard reset"
1058          *    VBLM[6:4] "Blooming voltage selection"
1059          *                  =   5 (0x05) .101....
1060          *    VBLM[3:0] "Sensor current control"
1061          *                  =  10 (0x0A) ....1010
1062          */
1063         { 0x34, 0x5a },
1064
1065         /*
1066          * 3B FREFB "Internal Reference Adjustment"
1067          *                  =   0 (0x00) 00000000
1068          *    FREFB[7:0] "Range"
1069          *                  =   0 (0x00) 00000000
1070          */
1071         { 0x3b, 0x00 },
1072
1073         /*
1074          * 33 CHLF "Current Control"
1075          *                  =   9 (0x09) 00001001
1076          *    CHLF[7:6] "Sensor current control"
1077          *                  =   0 (0x00) 00......
1078          *    CHLF[5] "Sensor current range control"
1079          *                  =   0 (0x00) ..0..... "normal range"
1080          *    CHLF[4] "Sensor current"
1081          *                  =   0 (0x00) ...0.... "normal current"
1082          *    CHLF[3] "Sensor buffer current control"
1083          *                  =   1 (0x01) ....1... "half current"
1084          *    CHLF[2] "Column buffer current control"
1085          *                  =   0 (0x00) .....0.. "normal current"
1086          *    CHLF[1] "Analog DSP current control"
1087          *                  =   0 (0x00) ......0. "normal current"
1088          *    CHLF[1] "ADC current control"
1089          *                  =   0 (0x00) ......0. "normal current"
1090          */
1091         { 0x33, 0x09 },
1092
1093         /*
1094          * 34 VBLM "Blooming Control"
1095          *                  =  80 (0x50) 01010000
1096          *    VBLM[7] "Hard soft reset switch"
1097          *                  =   0 (0x00) 0....... "Hard reset"
1098          *    VBLM[6:4] "Blooming voltage selection"
1099          *                  =   5 (0x05) .101....
1100          *    VBLM[3:0] "Sensor current control"
1101          *                  =   0 (0x00) ....0000
1102          */
1103         { 0x34, 0x50 },
1104
1105         /*
1106          * 12 COMH "Common Control H"
1107          *                  =  64 (0x40) 01000000
1108          *    COMH[7] "SRST"
1109          *                  =   0 (0x00) 0....... "No-op"
1110          *    COMH[6:4] "Resolution selection"
1111          *                  =   4 (0x04) .100.... "XGA"
1112          *    COMH[3] "Master slave selection"
1113          *                  =   0 (0x00) ....0... "Master mode"
1114          *    COMH[2] "Internal B/R channel option"
1115          *                  =   0 (0x00) .....0.. "B/R use same channel"
1116          *    COMH[1] "Color bar test pattern"
1117          *                  =   0 (0x00) ......0. "Off"
1118          *    COMH[0] "Reserved"
1119          *                  =   0 (0x00) .......0
1120          */
1121         { 0x12, 0x40 },
1122
1123         /*
1124          * 17 HREFST "Horizontal window start"
1125          *                  =  31 (0x1F) 00011111
1126          *    HREFST[7:0] "Horizontal window start, 8 MSBs"
1127          *                  =  31 (0x1F) 00011111
1128          */
1129         { 0x17, 0x1f },
1130
1131         /*
1132          * 18 HREFEND "Horizontal window end"
1133          *                  =  95 (0x5F) 01011111
1134          *    HREFEND[7:0] "Horizontal Window End, 8 MSBs"
1135          *                  =  95 (0x5F) 01011111
1136          */
1137         { 0x18, 0x5f },
1138
1139         /*
1140          * 19 VSTRT "Vertical window start"
1141          *                  =   0 (0x00) 00000000
1142          *    VSTRT[7:0] "Vertical Window Start, 8 MSBs"
1143          *                  =   0 (0x00) 00000000
1144          */
1145         { 0x19, 0x00 },
1146
1147         /*
1148          * 1A VEND "Vertical window end"
1149          *                  =  96 (0x60) 01100000
1150          *    VEND[7:0] "Vertical Window End, 8 MSBs"
1151          *                  =  96 (0x60) 01100000
1152          */
1153         { 0x1a, 0x60 },
1154
1155         /*
1156          * 32 COMM "Common Control M"
1157          *                  =  18 (0x12) 00010010
1158          *    COMM[7:6] "Pixel clock divide option"
1159          *                  =   0 (0x00) 00...... "/1"
1160          *    COMM[5:3] "Horizontal window end position, 3 LSBs"
1161          *                  =   2 (0x02) ..010...
1162          *    COMM[2:0] "Horizontal window start position, 3 LSBs"
1163          *                  =   2 (0x02) .....010
1164          */
1165         { 0x32, 0x12 },
1166
1167         /*
1168          * 03 COMA "Common Control A"
1169          *                  =  74 (0x4A) 01001010
1170          *    COMA[7:4] "AWB Update Threshold"
1171          *                  =   4 (0x04) 0100....
1172          *    COMA[3:2] "Vertical window end line control 2 LSBs"
1173          *                  =   2 (0x02) ....10..
1174          *    COMA[1:0] "Vertical window start line control 2 LSBs"
1175          *                  =   2 (0x02) ......10
1176          */
1177         { 0x03, 0x4a },
1178
1179         /*
1180          * 11 CLKRC "Clock Rate Control"
1181          *                  = 128 (0x80) 10000000
1182          *    CLKRC[7] "Internal frequency doublers on off seclection"
1183          *                  =   1 (0x01) 1....... "On"
1184          *    CLKRC[6] "Digital video master slave selection"
1185          *                  =   0 (0x00) .0...... "Master mode, sensor
1186          *                                         provides PCLK"
1187          *    CLKRC[5:0] "Clock divider { CLK = PCLK/(1+CLKRC[5:0]) }"
1188          *                  =   0 (0x00) ..000000
1189          */
1190         { 0x11, 0x80 },
1191
1192         /*
1193          * 12 COMH "Common Control H"
1194          *                  =   0 (0x00) 00000000
1195          *    COMH[7] "SRST"
1196          *                  =   0 (0x00) 0....... "No-op"
1197          *    COMH[6:4] "Resolution selection"
1198          *                  =   0 (0x00) .000.... "QXGA"
1199          *    COMH[3] "Master slave selection"
1200          *                  =   0 (0x00) ....0... "Master mode"
1201          *    COMH[2] "Internal B/R channel option"
1202          *                  =   0 (0x00) .....0.. "B/R use same channel"
1203          *    COMH[1] "Color bar test pattern"
1204          *                  =   0 (0x00) ......0. "Off"
1205          *    COMH[0] "Reserved"
1206          *                  =   0 (0x00) .......0
1207          */
1208         { 0x12, 0x00 },
1209
1210         /*
1211          * 12 COMH "Common Control H"
1212          *                  =  64 (0x40) 01000000
1213          *    COMH[7] "SRST"
1214          *                  =   0 (0x00) 0....... "No-op"
1215          *    COMH[6:4] "Resolution selection"
1216          *                  =   4 (0x04) .100.... "XGA"
1217          *    COMH[3] "Master slave selection"
1218          *                  =   0 (0x00) ....0... "Master mode"
1219          *    COMH[2] "Internal B/R channel option"
1220          *                  =   0 (0x00) .....0.. "B/R use same channel"
1221          *    COMH[1] "Color bar test pattern"
1222          *                  =   0 (0x00) ......0. "Off"
1223          *    COMH[0] "Reserved"
1224          *                  =   0 (0x00) .......0
1225          */
1226         { 0x12, 0x40 },
1227
1228         /*
1229          * 17 HREFST "Horizontal window start"
1230          *                  =  31 (0x1F) 00011111
1231          *    HREFST[7:0] "Horizontal window start, 8 MSBs"
1232          *                  =  31 (0x1F) 00011111
1233          */
1234         { 0x17, 0x1f },
1235
1236         /*
1237          * 18 HREFEND "Horizontal window end"
1238          *                  =  95 (0x5F) 01011111
1239          *    HREFEND[7:0] "Horizontal Window End, 8 MSBs"
1240          *                  =  95 (0x5F) 01011111
1241          */
1242         { 0x18, 0x5f },
1243
1244         /*
1245          * 19 VSTRT "Vertical window start"
1246          *                  =   0 (0x00) 00000000
1247          *    VSTRT[7:0] "Vertical Window Start, 8 MSBs"
1248          *                  =   0 (0x00) 00000000
1249          */
1250         { 0x19, 0x00 },
1251
1252         /*
1253          * 1A VEND "Vertical window end"
1254          *                  =  96 (0x60) 01100000
1255          *    VEND[7:0] "Vertical Window End, 8 MSBs"
1256          *                  =  96 (0x60) 01100000
1257          */
1258         { 0x1a, 0x60 },
1259
1260         /*
1261          * 32 COMM "Common Control M"
1262          *                  =  18 (0x12) 00010010
1263          *    COMM[7:6] "Pixel clock divide option"
1264          *                  =   0 (0x00) 00...... "/1"
1265          *    COMM[5:3] "Horizontal window end position, 3 LSBs"
1266          *                  =   2 (0x02) ..010...
1267          *    COMM[2:0] "Horizontal window start position, 3 LSBs"
1268          *                  =   2 (0x02) .....010
1269          */
1270         { 0x32, 0x12 },
1271
1272         /*
1273          * 03 COMA "Common Control A"
1274          *                  =  74 (0x4A) 01001010
1275          *    COMA[7:4] "AWB Update Threshold"
1276          *                  =   4 (0x04) 0100....
1277          *    COMA[3:2] "Vertical window end line control 2 LSBs"
1278          *                  =   2 (0x02) ....10..
1279          *    COMA[1:0] "Vertical window start line control 2 LSBs"
1280          *                  =   2 (0x02) ......10
1281          */
1282         { 0x03, 0x4a },
1283
1284         /*
1285          * 02 RED "Red Gain Control"
1286          *                  = 175 (0xAF) 10101111
1287          *    RED[7] "Action"
1288          *                  =   1 (0x01) 1....... "gain = 1/(1+bitrev([6:0]))"
1289          *    RED[6:0] "Value"
1290          *                  =  47 (0x2F) .0101111
1291          */
1292         { 0x02, 0xaf },
1293
1294         /*
1295          * 2D ADDVSL "VSYNC Pulse Width"
1296          *                  = 210 (0xD2) 11010010
1297          *    ADDVSL[7:0] "VSYNC pulse width, LSB"
1298          *                  = 210 (0xD2) 11010010
1299          */
1300         { 0x2d, 0xd2 },
1301
1302         /*
1303          * 00 GAIN          =  24 (0x18) 00011000
1304          *    GAIN[7:6] "Reserved"
1305          *                  =   0 (0x00) 00......
1306          *    GAIN[5] "Double"
1307          *                  =   0 (0x00) ..0..... "False"
1308          *    GAIN[4] "Double"
1309          *                  =   1 (0x01) ...1.... "True"
1310          *    GAIN[3:0] "Range"
1311          *                  =   8 (0x08) ....1000
1312          */
1313         { 0x00, 0x18 },
1314
1315         /*
1316          * 01 BLUE "Blue Gain Control"
1317          *                  = 240 (0xF0) 11110000
1318          *    BLUE[7] "Action"
1319          *                  =   1 (0x01) 1....... "gain = 1/(1+bitrev([6:0]))"
1320          *    BLUE[6:0] "Value"
1321          *                  = 112 (0x70) .1110000
1322          */
1323         { 0x01, 0xf0 },
1324
1325         /*
1326          * 10 AEC "Automatic Exposure Control"
1327          *                  =  10 (0x0A) 00001010
1328          *    AEC[7:0] "Automatic Exposure Control, 8 MSBs"
1329          *                  =  10 (0x0A) 00001010
1330          */
1331         { 0x10, 0x0a },
1332
1333         { 0xe1, 0x67 },
1334         { 0xe3, 0x03 },
1335         { 0xe4, 0x26 },
1336         { 0xe5, 0x3e },
1337         { 0xf8, 0x01 },
1338         { 0xff, 0x01 },
1339 };
1340
1341 static const struct ov_i2c_regvals norm_6x20[] = {
1342         { 0x12, 0x80 }, /* reset */
1343         { 0x11, 0x01 },
1344         { 0x03, 0x60 },
1345         { 0x05, 0x7f }, /* For when autoadjust is off */
1346         { 0x07, 0xa8 },
1347         /* The ratio of 0x0c and 0x0d controls the white point */
1348         { 0x0c, 0x24 },
1349         { 0x0d, 0x24 },
1350         { 0x0f, 0x15 }, /* COMS */
1351         { 0x10, 0x75 }, /* AEC Exposure time */
1352         { 0x12, 0x24 }, /* Enable AGC */
1353         { 0x14, 0x04 },
1354         /* 0x16: 0x06 helps frame stability with moving objects */
1355         { 0x16, 0x06 },
1356 /*      { 0x20, 0x30 },  * Aperture correction enable */
1357         { 0x26, 0xb2 }, /* BLC enable */
1358         /* 0x28: 0x05 Selects RGB format if RGB on */
1359         { 0x28, 0x05 },
1360         { 0x2a, 0x04 }, /* Disable framerate adjust */
1361 /*      { 0x2b, 0xac },  * Framerate; Set 2a[7] first */
1362         { 0x2d, 0x85 },
1363         { 0x33, 0xa0 }, /* Color Processing Parameter */
1364         { 0x34, 0xd2 }, /* Max A/D range */
1365         { 0x38, 0x8b },
1366         { 0x39, 0x40 },
1367
1368         { 0x3c, 0x39 }, /* Enable AEC mode changing */
1369         { 0x3c, 0x3c }, /* Change AEC mode */
1370         { 0x3c, 0x24 }, /* Disable AEC mode changing */
1371
1372         { 0x3d, 0x80 },
1373         /* These next two registers (0x4a, 0x4b) are undocumented.
1374          * They control the color balance */
1375         { 0x4a, 0x80 },
1376         { 0x4b, 0x80 },
1377         { 0x4d, 0xd2 }, /* This reduces noise a bit */
1378         { 0x4e, 0xc1 },
1379         { 0x4f, 0x04 },
1380 /* Do 50-53 have any effect? */
1381 /* Toggle 0x12[2] off and on here? */
1382 };
1383
1384 static const struct ov_i2c_regvals norm_6x30[] = {
1385         { 0x12, 0x80 }, /* Reset */
1386         { 0x00, 0x1f }, /* Gain */
1387         { 0x01, 0x99 }, /* Blue gain */
1388         { 0x02, 0x7c }, /* Red gain */
1389         { 0x03, 0xc0 }, /* Saturation */
1390         { 0x05, 0x0a }, /* Contrast */
1391         { 0x06, 0x95 }, /* Brightness */
1392         { 0x07, 0x2d }, /* Sharpness */
1393         { 0x0c, 0x20 },
1394         { 0x0d, 0x20 },
1395         { 0x0e, 0xa0 }, /* Was 0x20, bit7 enables a 2x gain which we need */
1396         { 0x0f, 0x05 },
1397         { 0x10, 0x9a },
1398         { 0x11, 0x00 }, /* Pixel clock = fastest */
1399         { 0x12, 0x24 }, /* Enable AGC and AWB */
1400         { 0x13, 0x21 },
1401         { 0x14, 0x80 },
1402         { 0x15, 0x01 },
1403         { 0x16, 0x03 },
1404         { 0x17, 0x38 },
1405         { 0x18, 0xea },
1406         { 0x19, 0x04 },
1407         { 0x1a, 0x93 },
1408         { 0x1b, 0x00 },
1409         { 0x1e, 0xc4 },
1410         { 0x1f, 0x04 },
1411         { 0x20, 0x20 },
1412         { 0x21, 0x10 },
1413         { 0x22, 0x88 },
1414         { 0x23, 0xc0 }, /* Crystal circuit power level */
1415         { 0x25, 0x9a }, /* Increase AEC black ratio */
1416         { 0x26, 0xb2 }, /* BLC enable */
1417         { 0x27, 0xa2 },
1418         { 0x28, 0x00 },
1419         { 0x29, 0x00 },
1420         { 0x2a, 0x84 }, /* 60 Hz power */
1421         { 0x2b, 0xa8 }, /* 60 Hz power */
1422         { 0x2c, 0xa0 },
1423         { 0x2d, 0x95 }, /* Enable auto-brightness */
1424         { 0x2e, 0x88 },
1425         { 0x33, 0x26 },
1426         { 0x34, 0x03 },
1427         { 0x36, 0x8f },
1428         { 0x37, 0x80 },
1429         { 0x38, 0x83 },
1430         { 0x39, 0x80 },
1431         { 0x3a, 0x0f },
1432         { 0x3b, 0x3c },
1433         { 0x3c, 0x1a },
1434         { 0x3d, 0x80 },
1435         { 0x3e, 0x80 },
1436         { 0x3f, 0x0e },
1437         { 0x40, 0x00 }, /* White bal */
1438         { 0x41, 0x00 }, /* White bal */
1439         { 0x42, 0x80 },
1440         { 0x43, 0x3f }, /* White bal */
1441         { 0x44, 0x80 },
1442         { 0x45, 0x20 },
1443         { 0x46, 0x20 },
1444         { 0x47, 0x80 },
1445         { 0x48, 0x7f },
1446         { 0x49, 0x00 },
1447         { 0x4a, 0x00 },
1448         { 0x4b, 0x80 },
1449         { 0x4c, 0xd0 },
1450         { 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
1451         { 0x4e, 0x40 },
1452         { 0x4f, 0x07 }, /* UV avg., col. killer: max */
1453         { 0x50, 0xff },
1454         { 0x54, 0x23 }, /* Max AGC gain: 18dB */
1455         { 0x55, 0xff },
1456         { 0x56, 0x12 },
1457         { 0x57, 0x81 },
1458         { 0x58, 0x75 },
1459         { 0x59, 0x01 }, /* AGC dark current comp.: +1 */
1460         { 0x5a, 0x2c },
1461         { 0x5b, 0x0f }, /* AWB chrominance levels */
1462         { 0x5c, 0x10 },
1463         { 0x3d, 0x80 },
1464         { 0x27, 0xa6 },
1465         { 0x12, 0x20 }, /* Toggle AWB */
1466         { 0x12, 0x24 },
1467 };
1468
1469 /* Lawrence Glaister <lg@jfm.bc.ca> reports:
1470  *
1471  * Register 0x0f in the 7610 has the following effects:
1472  *
1473  * 0x85 (AEC method 1): Best overall, good contrast range
1474  * 0x45 (AEC method 2): Very overexposed
1475  * 0xa5 (spec sheet default): Ok, but the black level is
1476  *      shifted resulting in loss of contrast
1477  * 0x05 (old driver setting): very overexposed, too much
1478  *      contrast
1479  */
1480 static const struct ov_i2c_regvals norm_7610[] = {
1481         { 0x10, 0xff },
1482         { 0x16, 0x06 },
1483         { 0x28, 0x24 },
1484         { 0x2b, 0xac },
1485         { 0x12, 0x00 },
1486         { 0x38, 0x81 },
1487         { 0x28, 0x24 }, /* 0c */
1488         { 0x0f, 0x85 }, /* lg's setting */
1489         { 0x15, 0x01 },
1490         { 0x20, 0x1c },
1491         { 0x23, 0x2a },
1492         { 0x24, 0x10 },
1493         { 0x25, 0x8a },
1494         { 0x26, 0xa2 },
1495         { 0x27, 0xc2 },
1496         { 0x2a, 0x04 },
1497         { 0x2c, 0xfe },
1498         { 0x2d, 0x93 },
1499         { 0x30, 0x71 },
1500         { 0x31, 0x60 },
1501         { 0x32, 0x26 },
1502         { 0x33, 0x20 },
1503         { 0x34, 0x48 },
1504         { 0x12, 0x24 },
1505         { 0x11, 0x01 },
1506         { 0x0c, 0x24 },
1507         { 0x0d, 0x24 },
1508 };
1509
1510 static const struct ov_i2c_regvals norm_7620[] = {
1511         { 0x12, 0x80 },         /* reset */
1512         { 0x00, 0x00 },         /* gain */
1513         { 0x01, 0x80 },         /* blue gain */
1514         { 0x02, 0x80 },         /* red gain */
1515         { 0x03, 0xc0 },         /* OV7670_R03_VREF */
1516         { 0x06, 0x60 },
1517         { 0x07, 0x00 },
1518         { 0x0c, 0x24 },
1519         { 0x0c, 0x24 },
1520         { 0x0d, 0x24 },
1521         { 0x11, 0x01 },
1522         { 0x12, 0x24 },
1523         { 0x13, 0x01 },
1524         { 0x14, 0x84 },
1525         { 0x15, 0x01 },
1526         { 0x16, 0x03 },
1527         { 0x17, 0x2f },
1528         { 0x18, 0xcf },
1529         { 0x19, 0x06 },
1530         { 0x1a, 0xf5 },
1531         { 0x1b, 0x00 },
1532         { 0x20, 0x18 },
1533         { 0x21, 0x80 },
1534         { 0x22, 0x80 },
1535         { 0x23, 0x00 },
1536         { 0x26, 0xa2 },
1537         { 0x27, 0xea },
1538         { 0x28, 0x22 }, /* Was 0x20, bit1 enables a 2x gain which we need */
1539         { 0x29, 0x00 },
1540         { 0x2a, 0x10 },
1541         { 0x2b, 0x00 },
1542         { 0x2c, 0x88 },
1543         { 0x2d, 0x91 },
1544         { 0x2e, 0x80 },
1545         { 0x2f, 0x44 },
1546         { 0x60, 0x27 },
1547         { 0x61, 0x02 },
1548         { 0x62, 0x5f },
1549         { 0x63, 0xd5 },
1550         { 0x64, 0x57 },
1551         { 0x65, 0x83 },
1552         { 0x66, 0x55 },
1553         { 0x67, 0x92 },
1554         { 0x68, 0xcf },
1555         { 0x69, 0x76 },
1556         { 0x6a, 0x22 },
1557         { 0x6b, 0x00 },
1558         { 0x6c, 0x02 },
1559         { 0x6d, 0x44 },
1560         { 0x6e, 0x80 },
1561         { 0x6f, 0x1d },
1562         { 0x70, 0x8b },
1563         { 0x71, 0x00 },
1564         { 0x72, 0x14 },
1565         { 0x73, 0x54 },
1566         { 0x74, 0x00 },
1567         { 0x75, 0x8e },
1568         { 0x76, 0x00 },
1569         { 0x77, 0xff },
1570         { 0x78, 0x80 },
1571         { 0x79, 0x80 },
1572         { 0x7a, 0x80 },
1573         { 0x7b, 0xe2 },
1574         { 0x7c, 0x00 },
1575 };
1576
1577 /* 7640 and 7648. The defaults should be OK for most registers. */
1578 static const struct ov_i2c_regvals norm_7640[] = {
1579         { 0x12, 0x80 },
1580         { 0x12, 0x14 },
1581 };
1582
1583 static const struct ov_regvals init_519_ov7660[] = {
1584         { 0x5d, 0x03 }, /* Turn off suspend mode */
1585         { 0x53, 0x9b }, /* 0x9f enables the (unused) microcontroller */
1586         { 0x54, 0x0f }, /* bit2 (jpeg enable) */
1587         { 0xa2, 0x20 }, /* a2-a5 are undocumented */
1588         { 0xa3, 0x18 },
1589         { 0xa4, 0x04 },
1590         { 0xa5, 0x28 },
1591         { 0x37, 0x00 }, /* SetUsbInit */
1592         { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
1593         /* Enable both fields, YUV Input, disable defect comp (why?) */
1594         { 0x20, 0x0c }, /* 0x0d does U <-> V swap */
1595         { 0x21, 0x38 },
1596         { 0x22, 0x1d },
1597         { 0x17, 0x50 }, /* undocumented */
1598         { 0x37, 0x00 }, /* undocumented */
1599         { 0x40, 0xff }, /* I2C timeout counter */
1600         { 0x46, 0x00 }, /* I2C clock prescaler */
1601 };
1602 static const struct ov_i2c_regvals norm_7660[] = {
1603         {OV7670_R12_COM7, OV7670_COM7_RESET},
1604         {OV7670_R11_CLKRC, 0x81},
1605         {0x92, 0x00},                   /* DM_LNL */
1606         {0x93, 0x00},                   /* DM_LNH */
1607         {0x9d, 0x4c},                   /* BD50ST */
1608         {0x9e, 0x3f},                   /* BD60ST */
1609         {OV7670_R3B_COM11, 0x02},
1610         {OV7670_R13_COM8, 0xf5},
1611         {OV7670_R10_AECH, 0x00},
1612         {OV7670_R00_GAIN, 0x00},
1613         {OV7670_R01_BLUE, 0x7c},
1614         {OV7670_R02_RED, 0x9d},
1615         {OV7670_R12_COM7, 0x00},
1616         {OV7670_R04_COM1, 00},
1617         {OV7670_R18_HSTOP, 0x01},
1618         {OV7670_R17_HSTART, 0x13},
1619         {OV7670_R32_HREF, 0x92},
1620         {OV7670_R19_VSTART, 0x02},
1621         {OV7670_R1A_VSTOP, 0x7a},
1622         {OV7670_R03_VREF, 0x00},
1623         {OV7670_R0E_COM5, 0x04},
1624         {OV7670_R0F_COM6, 0x62},
1625         {OV7670_R15_COM10, 0x00},
1626         {0x16, 0x02},                   /* RSVD */
1627         {0x1b, 0x00},                   /* PSHFT */
1628         {OV7670_R1E_MVFP, 0x01},
1629         {0x29, 0x3c},                   /* RSVD */
1630         {0x33, 0x00},                   /* CHLF */
1631         {0x34, 0x07},                   /* ARBLM */
1632         {0x35, 0x84},                   /* RSVD */
1633         {0x36, 0x00},                   /* RSVD */
1634         {0x37, 0x04},                   /* ADC */
1635         {0x39, 0x43},                   /* OFON */
1636         {OV7670_R3A_TSLB, 0x00},
1637         {OV7670_R3C_COM12, 0x6c},
1638         {OV7670_R3D_COM13, 0x98},
1639         {OV7670_R3F_EDGE, 0x23},
1640         {OV7670_R40_COM15, 0xc1},
1641         {OV7670_R41_COM16, 0x22},
1642         {0x6b, 0x0a},                   /* DBLV */
1643         {0xa1, 0x08},                   /* RSVD */
1644         {0x69, 0x80},                   /* HV */
1645         {0x43, 0xf0},                   /* RSVD.. */
1646         {0x44, 0x10},
1647         {0x45, 0x78},
1648         {0x46, 0xa8},
1649         {0x47, 0x60},
1650         {0x48, 0x80},
1651         {0x59, 0xba},
1652         {0x5a, 0x9a},
1653         {0x5b, 0x22},
1654         {0x5c, 0xb9},
1655         {0x5d, 0x9b},
1656         {0x5e, 0x10},
1657         {0x5f, 0xe0},
1658         {0x60, 0x85},
1659         {0x61, 0x60},
1660         {0x9f, 0x9d},                   /* RSVD */
1661         {0xa0, 0xa0},                   /* DSPC2 */
1662         {0x4f, 0x60},                   /* matrix */
1663         {0x50, 0x64},
1664         {0x51, 0x04},
1665         {0x52, 0x18},
1666         {0x53, 0x3c},
1667         {0x54, 0x54},
1668         {0x55, 0x40},
1669         {0x56, 0x40},
1670         {0x57, 0x40},
1671         {0x58, 0x0d},                   /* matrix sign */
1672         {0x8b, 0xcc},                   /* RSVD */
1673         {0x8c, 0xcc},
1674         {0x8d, 0xcf},
1675         {0x6c, 0x40},                   /* gamma curve */
1676         {0x6d, 0xe0},
1677         {0x6e, 0xa0},
1678         {0x6f, 0x80},
1679         {0x70, 0x70},
1680         {0x71, 0x80},
1681         {0x72, 0x60},
1682         {0x73, 0x60},
1683         {0x74, 0x50},
1684         {0x75, 0x40},
1685         {0x76, 0x38},
1686         {0x77, 0x3c},
1687         {0x78, 0x32},
1688         {0x79, 0x1a},
1689         {0x7a, 0x28},
1690         {0x7b, 0x24},
1691         {0x7c, 0x04},                   /* gamma curve */
1692         {0x7d, 0x12},
1693         {0x7e, 0x26},
1694         {0x7f, 0x46},
1695         {0x80, 0x54},
1696         {0x81, 0x64},
1697         {0x82, 0x70},
1698         {0x83, 0x7c},
1699         {0x84, 0x86},
1700         {0x85, 0x8e},
1701         {0x86, 0x9c},
1702         {0x87, 0xab},
1703         {0x88, 0xc4},
1704         {0x89, 0xd1},
1705         {0x8a, 0xe5},
1706         {OV7670_R14_COM9, 0x1e},
1707         {OV7670_R24_AEW, 0x80},
1708         {OV7670_R25_AEB, 0x72},
1709         {OV7670_R26_VPT, 0xb3},
1710         {0x62, 0x80},                   /* LCC1 */
1711         {0x63, 0x80},                   /* LCC2 */
1712         {0x64, 0x06},                   /* LCC3 */
1713         {0x65, 0x00},                   /* LCC4 */
1714         {0x66, 0x01},                   /* LCC5 */
1715         {0x94, 0x0e},                   /* RSVD.. */
1716         {0x95, 0x14},
1717         {OV7670_R13_COM8, OV7670_COM8_FASTAEC
1718                         | OV7670_COM8_AECSTEP
1719                         | OV7670_COM8_BFILT
1720                         | 0x10
1721                         | OV7670_COM8_AGC
1722                         | OV7670_COM8_AWB
1723                         | OV7670_COM8_AEC},
1724         {0xa1, 0xc8}
1725 };
1726
1727 /* 7670. Defaults taken from OmniVision provided data,
1728 *  as provided by Jonathan Corbet of OLPC               */
1729 static const struct ov_i2c_regvals norm_7670[] = {
1730         { OV7670_R12_COM7, OV7670_COM7_RESET },
1731         { OV7670_R3A_TSLB, 0x04 },              /* OV */
1732         { OV7670_R12_COM7, OV7670_COM7_FMT_VGA }, /* VGA */
1733         { OV7670_R11_CLKRC, 0x01 },
1734 /*
1735  * Set the hardware window.  These values from OV don't entirely
1736  * make sense - hstop is less than hstart.  But they work...
1737  */
1738         { OV7670_R17_HSTART, 0x13 },
1739         { OV7670_R18_HSTOP, 0x01 },
1740         { OV7670_R32_HREF, 0xb6 },
1741         { OV7670_R19_VSTART, 0x02 },
1742         { OV7670_R1A_VSTOP, 0x7a },
1743         { OV7670_R03_VREF, 0x0a },
1744
1745         { OV7670_R0C_COM3, 0x00 },
1746         { OV7670_R3E_COM14, 0x00 },
1747 /* Mystery scaling numbers */
1748         { 0x70, 0x3a },
1749         { 0x71, 0x35 },
1750         { 0x72, 0x11 },
1751         { 0x73, 0xf0 },
1752         { 0xa2, 0x02 },
1753 /*      { OV7670_R15_COM10, 0x0 }, */
1754
1755 /* Gamma curve values */
1756         { 0x7a, 0x20 },
1757         { 0x7b, 0x10 },
1758         { 0x7c, 0x1e },
1759         { 0x7d, 0x35 },
1760         { 0x7e, 0x5a },
1761         { 0x7f, 0x69 },
1762         { 0x80, 0x76 },
1763         { 0x81, 0x80 },
1764         { 0x82, 0x88 },
1765         { 0x83, 0x8f },
1766         { 0x84, 0x96 },
1767         { 0x85, 0xa3 },
1768         { 0x86, 0xaf },
1769         { 0x87, 0xc4 },
1770         { 0x88, 0xd7 },
1771         { 0x89, 0xe8 },
1772
1773 /* AGC and AEC parameters.  Note we start by disabling those features,
1774    then turn them only after tweaking the values. */
1775         { OV7670_R13_COM8, OV7670_COM8_FASTAEC
1776                          | OV7670_COM8_AECSTEP
1777                          | OV7670_COM8_BFILT },
1778         { OV7670_R00_GAIN, 0x00 },
1779         { OV7670_R10_AECH, 0x00 },
1780         { OV7670_R0D_COM4, 0x40 }, /* magic reserved bit */
1781         { OV7670_R14_COM9, 0x18 }, /* 4x gain + magic rsvd bit */
1782         { OV7670_RA5_BD50MAX, 0x05 },
1783         { OV7670_RAB_BD60MAX, 0x07 },
1784         { OV7670_R24_AEW, 0x95 },
1785         { OV7670_R25_AEB, 0x33 },
1786         { OV7670_R26_VPT, 0xe3 },
1787         { OV7670_R9F_HAECC1, 0x78 },
1788         { OV7670_RA0_HAECC2, 0x68 },
1789         { 0xa1, 0x03 }, /* magic */
1790         { OV7670_RA6_HAECC3, 0xd8 },
1791         { OV7670_RA7_HAECC4, 0xd8 },
1792         { OV7670_RA8_HAECC5, 0xf0 },
1793         { OV7670_RA9_HAECC6, 0x90 },
1794         { OV7670_RAA_HAECC7, 0x94 },
1795         { OV7670_R13_COM8, OV7670_COM8_FASTAEC
1796                         | OV7670_COM8_AECSTEP
1797                         | OV7670_COM8_BFILT
1798                         | OV7670_COM8_AGC
1799                         | OV7670_COM8_AEC },
1800
1801 /* Almost all of these are magic "reserved" values.  */
1802         { OV7670_R0E_COM5, 0x61 },
1803         { OV7670_R0F_COM6, 0x4b },
1804         { 0x16, 0x02 },
1805         { OV7670_R1E_MVFP, 0x07 },
1806         { 0x21, 0x02 },
1807         { 0x22, 0x91 },
1808         { 0x29, 0x07 },
1809         { 0x33, 0x0b },
1810         { 0x35, 0x0b },
1811         { 0x37, 0x1d },
1812         { 0x38, 0x71 },
1813         { 0x39, 0x2a },
1814         { OV7670_R3C_COM12, 0x78 },
1815         { 0x4d, 0x40 },
1816         { 0x4e, 0x20 },
1817         { OV7670_R69_GFIX, 0x00 },
1818         { 0x6b, 0x4a },
1819         { 0x74, 0x10 },
1820         { 0x8d, 0x4f },
1821         { 0x8e, 0x00 },
1822         { 0x8f, 0x00 },
1823         { 0x90, 0x00 },
1824         { 0x91, 0x00 },
1825         { 0x96, 0x00 },
1826         { 0x9a, 0x00 },
1827         { 0xb0, 0x84 },
1828         { 0xb1, 0x0c },
1829         { 0xb2, 0x0e },
1830         { 0xb3, 0x82 },
1831         { 0xb8, 0x0a },
1832
1833 /* More reserved magic, some of which tweaks white balance */
1834         { 0x43, 0x0a },
1835         { 0x44, 0xf0 },
1836         { 0x45, 0x34 },
1837         { 0x46, 0x58 },
1838         { 0x47, 0x28 },
1839         { 0x48, 0x3a },
1840         { 0x59, 0x88 },
1841         { 0x5a, 0x88 },
1842         { 0x5b, 0x44 },
1843         { 0x5c, 0x67 },
1844         { 0x5d, 0x49 },
1845         { 0x5e, 0x0e },
1846         { 0x6c, 0x0a },
1847         { 0x6d, 0x55 },
1848         { 0x6e, 0x11 },
1849         { 0x6f, 0x9f },                 /* "9e for advance AWB" */
1850         { 0x6a, 0x40 },
1851         { OV7670_R01_BLUE, 0x40 },
1852         { OV7670_R02_RED, 0x60 },
1853         { OV7670_R13_COM8, OV7670_COM8_FASTAEC
1854                         | OV7670_COM8_AECSTEP
1855                         | OV7670_COM8_BFILT
1856                         | OV7670_COM8_AGC
1857                         | OV7670_COM8_AEC
1858                         | OV7670_COM8_AWB },
1859
1860 /* Matrix coefficients */
1861         { 0x4f, 0x80 },
1862         { 0x50, 0x80 },
1863         { 0x51, 0x00 },
1864         { 0x52, 0x22 },
1865         { 0x53, 0x5e },
1866         { 0x54, 0x80 },
1867         { 0x58, 0x9e },
1868
1869         { OV7670_R41_COM16, OV7670_COM16_AWBGAIN },
1870         { OV7670_R3F_EDGE, 0x00 },
1871         { 0x75, 0x05 },
1872         { 0x76, 0xe1 },
1873         { 0x4c, 0x00 },
1874         { 0x77, 0x01 },
1875         { OV7670_R3D_COM13, OV7670_COM13_GAMMA
1876                           | OV7670_COM13_UVSAT
1877                           | 2},         /* was 3 */
1878         { 0x4b, 0x09 },
1879         { 0xc9, 0x60 },
1880         { OV7670_R41_COM16, 0x38 },
1881         { 0x56, 0x40 },
1882
1883         { 0x34, 0x11 },
1884         { OV7670_R3B_COM11, OV7670_COM11_EXP|OV7670_COM11_HZAUTO },
1885         { 0xa4, 0x88 },
1886         { 0x96, 0x00 },
1887         { 0x97, 0x30 },
1888         { 0x98, 0x20 },
1889         { 0x99, 0x30 },
1890         { 0x9a, 0x84 },
1891         { 0x9b, 0x29 },
1892         { 0x9c, 0x03 },
1893         { 0x9d, 0x4c },
1894         { 0x9e, 0x3f },
1895         { 0x78, 0x04 },
1896
1897 /* Extra-weird stuff.  Some sort of multiplexor register */
1898         { 0x79, 0x01 },
1899         { 0xc8, 0xf0 },
1900         { 0x79, 0x0f },
1901         { 0xc8, 0x00 },
1902         { 0x79, 0x10 },
1903         { 0xc8, 0x7e },
1904         { 0x79, 0x0a },
1905         { 0xc8, 0x80 },
1906         { 0x79, 0x0b },
1907         { 0xc8, 0x01 },
1908         { 0x79, 0x0c },
1909         { 0xc8, 0x0f },
1910         { 0x79, 0x0d },
1911         { 0xc8, 0x20 },
1912         { 0x79, 0x09 },
1913         { 0xc8, 0x80 },
1914         { 0x79, 0x02 },
1915         { 0xc8, 0xc0 },
1916         { 0x79, 0x03 },
1917         { 0xc8, 0x40 },
1918         { 0x79, 0x05 },
1919         { 0xc8, 0x30 },
1920         { 0x79, 0x26 },
1921 };
1922
1923 static const struct ov_i2c_regvals norm_8610[] = {
1924         { 0x12, 0x80 },
1925         { 0x00, 0x00 },
1926         { 0x01, 0x80 },
1927         { 0x02, 0x80 },
1928         { 0x03, 0xc0 },
1929         { 0x04, 0x30 },
1930         { 0x05, 0x30 }, /* was 0x10, new from windrv 090403 */
1931         { 0x06, 0x70 }, /* was 0x80, new from windrv 090403 */
1932         { 0x0a, 0x86 },
1933         { 0x0b, 0xb0 },
1934         { 0x0c, 0x20 },
1935         { 0x0d, 0x20 },
1936         { 0x11, 0x01 },
1937         { 0x12, 0x25 },
1938         { 0x13, 0x01 },
1939         { 0x14, 0x04 },
1940         { 0x15, 0x01 }, /* Lin and Win think different about UV order */
1941         { 0x16, 0x03 },
1942         { 0x17, 0x38 }, /* was 0x2f, new from windrv 090403 */
1943         { 0x18, 0xea }, /* was 0xcf, new from windrv 090403 */
1944         { 0x19, 0x02 }, /* was 0x06, new from windrv 090403 */
1945         { 0x1a, 0xf5 },
1946         { 0x1b, 0x00 },
1947         { 0x20, 0xd0 }, /* was 0x90, new from windrv 090403 */
1948         { 0x23, 0xc0 }, /* was 0x00, new from windrv 090403 */
1949         { 0x24, 0x30 }, /* was 0x1d, new from windrv 090403 */
1950         { 0x25, 0x50 }, /* was 0x57, new from windrv 090403 */
1951         { 0x26, 0xa2 },
1952         { 0x27, 0xea },
1953         { 0x28, 0x00 },
1954         { 0x29, 0x00 },
1955         { 0x2a, 0x80 },
1956         { 0x2b, 0xc8 }, /* was 0xcc, new from windrv 090403 */
1957         { 0x2c, 0xac },
1958         { 0x2d, 0x45 }, /* was 0xd5, new from windrv 090403 */
1959         { 0x2e, 0x80 },
1960         { 0x2f, 0x14 }, /* was 0x01, new from windrv 090403 */
1961         { 0x4c, 0x00 },
1962         { 0x4d, 0x30 }, /* was 0x10, new from windrv 090403 */
1963         { 0x60, 0x02 }, /* was 0x01, new from windrv 090403 */
1964         { 0x61, 0x00 }, /* was 0x09, new from windrv 090403 */
1965         { 0x62, 0x5f }, /* was 0xd7, new from windrv 090403 */
1966         { 0x63, 0xff },
1967         { 0x64, 0x53 }, /* new windrv 090403 says 0x57,
1968                          * maybe thats wrong */
1969         { 0x65, 0x00 },
1970         { 0x66, 0x55 },
1971         { 0x67, 0xb0 },
1972         { 0x68, 0xc0 }, /* was 0xaf, new from windrv 090403 */
1973         { 0x69, 0x02 },
1974         { 0x6a, 0x22 },
1975         { 0x6b, 0x00 },
1976         { 0x6c, 0x99 }, /* was 0x80, old windrv says 0x00, but
1977                          * deleting bit7 colors the first images red */
1978         { 0x6d, 0x11 }, /* was 0x00, new from windrv 090403 */
1979         { 0x6e, 0x11 }, /* was 0x00, new from windrv 090403 */
1980         { 0x6f, 0x01 },
1981         { 0x70, 0x8b },
1982         { 0x71, 0x00 },
1983         { 0x72, 0x14 },
1984         { 0x73, 0x54 },
1985         { 0x74, 0x00 },/* 0x60? - was 0x00, new from windrv 090403 */
1986         { 0x75, 0x0e },
1987         { 0x76, 0x02 }, /* was 0x02, new from windrv 090403 */
1988         { 0x77, 0xff },
1989         { 0x78, 0x80 },
1990         { 0x79, 0x80 },
1991         { 0x7a, 0x80 },
1992         { 0x7b, 0x10 }, /* was 0x13, new from windrv 090403 */
1993         { 0x7c, 0x00 },
1994         { 0x7d, 0x08 }, /* was 0x09, new from windrv 090403 */
1995         { 0x7e, 0x08 }, /* was 0xc0, new from windrv 090403 */
1996         { 0x7f, 0xfb },
1997         { 0x80, 0x28 },
1998         { 0x81, 0x00 },
1999         { 0x82, 0x23 },
2000         { 0x83, 0x0b },
2001         { 0x84, 0x00 },
2002         { 0x85, 0x62 }, /* was 0x61, new from windrv 090403 */
2003         { 0x86, 0xc9 },
2004         { 0x87, 0x00 },
2005         { 0x88, 0x00 },
2006         { 0x89, 0x01 },
2007         { 0x12, 0x20 },
2008         { 0x12, 0x25 }, /* was 0x24, new from windrv 090403 */
2009 };
2010
2011 static unsigned char ov7670_abs_to_sm(unsigned char v)
2012 {
2013         if (v > 127)
2014                 return v & 0x7f;
2015         return (128 - v) | 0x80;
2016 }
2017
2018 /* Write a OV519 register */
2019 static void reg_w(struct sd *sd, u16 index, u16 value)
2020 {
2021         int ret, req = 0;
2022
2023         if (sd->gspca_dev.usb_err < 0)
2024                 return;
2025
2026         switch (sd->bridge) {
2027         case BRIDGE_OV511:
2028         case BRIDGE_OV511PLUS:
2029                 req = 2;
2030                 break;
2031         case BRIDGE_OVFX2:
2032                 req = 0x0a;
2033                 /* fall through */
2034         case BRIDGE_W9968CF:
2035                 PDEBUG(D_USBO, "SET %02x %04x %04x",
2036                                 req, value, index);
2037                 ret = usb_control_msg(sd->gspca_dev.dev,
2038                         usb_sndctrlpipe(sd->gspca_dev.dev, 0),
2039                         req,
2040                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2041                         value, index, NULL, 0, 500);
2042                 goto leave;
2043         default:
2044                 req = 1;
2045         }
2046
2047         PDEBUG(D_USBO, "SET %02x 0000 %04x %02x",
2048                         req, index, value);
2049         sd->gspca_dev.usb_buf[0] = value;
2050         ret = usb_control_msg(sd->gspca_dev.dev,
2051                         usb_sndctrlpipe(sd->gspca_dev.dev, 0),
2052                         req,
2053                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2054                         0, index,
2055                         sd->gspca_dev.usb_buf, 1, 500);
2056 leave:
2057         if (ret < 0) {
2058                 err("reg_w %02x failed %d", index, ret);
2059                 sd->gspca_dev.usb_err = ret;
2060                 return;
2061         }
2062 }
2063
2064 /* Read from a OV519 register, note not valid for the w9968cf!! */
2065 /* returns: negative is error, pos or zero is data */
2066 static int reg_r(struct sd *sd, u16 index)
2067 {
2068         int ret;
2069         int req;
2070
2071         if (sd->gspca_dev.usb_err < 0)
2072                 return -1;
2073
2074         switch (sd->bridge) {
2075         case BRIDGE_OV511:
2076         case BRIDGE_OV511PLUS:
2077                 req = 3;
2078                 break;
2079         case BRIDGE_OVFX2:
2080                 req = 0x0b;
2081                 break;
2082         default:
2083                 req = 1;
2084         }
2085
2086         ret = usb_control_msg(sd->gspca_dev.dev,
2087                         usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
2088                         req,
2089                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2090                         0, index, sd->gspca_dev.usb_buf, 1, 500);
2091
2092         if (ret >= 0) {
2093                 ret = sd->gspca_dev.usb_buf[0];
2094                 PDEBUG(D_USBI, "GET %02x 0000 %04x %02x",
2095                         req, index, ret);
2096         } else {
2097                 err("reg_r %02x failed %d", index, ret);
2098                 sd->gspca_dev.usb_err = ret;
2099         }
2100
2101         return ret;
2102 }
2103
2104 /* Read 8 values from a OV519 register */
2105 static int reg_r8(struct sd *sd,
2106                   u16 index)
2107 {
2108         int ret;
2109
2110         if (sd->gspca_dev.usb_err < 0)
2111                 return -1;
2112
2113         ret = usb_control_msg(sd->gspca_dev.dev,
2114                         usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
2115                         1,                      /* REQ_IO */
2116                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2117                         0, index, sd->gspca_dev.usb_buf, 8, 500);
2118
2119         if (ret >= 0) {
2120                 ret = sd->gspca_dev.usb_buf[0];
2121         } else {
2122                 err("reg_r8 %02x failed %d", index, ret);
2123                 sd->gspca_dev.usb_err = ret;
2124         }
2125
2126         return ret;
2127 }
2128
2129 /*
2130  * Writes bits at positions specified by mask to an OV51x reg. Bits that are in
2131  * the same position as 1's in "mask" are cleared and set to "value". Bits
2132  * that are in the same position as 0's in "mask" are preserved, regardless
2133  * of their respective state in "value".
2134  */
2135 static void reg_w_mask(struct sd *sd,
2136                         u16 index,
2137                         u8 value,
2138                         u8 mask)
2139 {
2140         int ret;
2141         u8 oldval;
2142
2143         if (mask != 0xff) {
2144                 value &= mask;                  /* Enforce mask on value */
2145                 ret = reg_r(sd, index);
2146                 if (ret < 0)
2147                         return;
2148
2149                 oldval = ret & ~mask;           /* Clear the masked bits */
2150                 value |= oldval;                /* Set the desired bits */
2151         }
2152         reg_w(sd, index, value);
2153 }
2154
2155 /*
2156  * Writes multiple (n) byte value to a single register. Only valid with certain
2157  * registers (0x30 and 0xc4 - 0xce).
2158  */
2159 static void ov518_reg_w32(struct sd *sd, u16 index, u32 value, int n)
2160 {
2161         int ret;
2162
2163         if (sd->gspca_dev.usb_err < 0)
2164                 return;
2165
2166         *((__le32 *) sd->gspca_dev.usb_buf) = __cpu_to_le32(value);
2167
2168         ret = usb_control_msg(sd->gspca_dev.dev,
2169                         usb_sndctrlpipe(sd->gspca_dev.dev, 0),
2170                         1 /* REG_IO */,
2171                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2172                         0, index,
2173                         sd->gspca_dev.usb_buf, n, 500);
2174         if (ret < 0) {
2175                 err("reg_w32 %02x failed %d", index, ret);
2176                 sd->gspca_dev.usb_err = ret;
2177         }
2178 }
2179
2180 static void ov511_i2c_w(struct sd *sd, u8 reg, u8 value)
2181 {
2182         int rc, retries;
2183
2184         PDEBUG(D_USBO, "ov511_i2c_w %02x %02x", reg, value);
2185
2186         /* Three byte write cycle */
2187         for (retries = 6; ; ) {
2188                 /* Select camera register */
2189                 reg_w(sd, R51x_I2C_SADDR_3, reg);
2190
2191                 /* Write "value" to I2C data port of OV511 */
2192                 reg_w(sd, R51x_I2C_DATA, value);
2193
2194                 /* Initiate 3-byte write cycle */
2195                 reg_w(sd, R511_I2C_CTL, 0x01);
2196
2197                 do {
2198                         rc = reg_r(sd, R511_I2C_CTL);
2199                 } while (rc > 0 && ((rc & 1) == 0)); /* Retry until idle */
2200
2201                 if (rc < 0)
2202                         return;
2203
2204                 if ((rc & 2) == 0) /* Ack? */
2205                         break;
2206                 if (--retries < 0) {
2207                         PDEBUG(D_USBO, "i2c write retries exhausted");
2208                         return;
2209                 }
2210         }
2211 }
2212
2213 static int ov511_i2c_r(struct sd *sd, u8 reg)
2214 {
2215         int rc, value, retries;
2216
2217         /* Two byte write cycle */
2218         for (retries = 6; ; ) {
2219                 /* Select camera register */
2220                 reg_w(sd, R51x_I2C_SADDR_2, reg);
2221
2222                 /* Initiate 2-byte write cycle */
2223                 reg_w(sd, R511_I2C_CTL, 0x03);
2224
2225                 do {
2226                         rc = reg_r(sd, R511_I2C_CTL);
2227                 } while (rc > 0 && ((rc & 1) == 0)); /* Retry until idle */
2228
2229                 if (rc < 0)
2230                         return rc;
2231
2232                 if ((rc & 2) == 0) /* Ack? */
2233                         break;
2234
2235                 /* I2C abort */
2236                 reg_w(sd, R511_I2C_CTL, 0x10);
2237
2238                 if (--retries < 0) {
2239                         PDEBUG(D_USBI, "i2c write retries exhausted");
2240                         return -1;
2241                 }
2242         }
2243
2244         /* Two byte read cycle */
2245         for (retries = 6; ; ) {
2246                 /* Initiate 2-byte read cycle */
2247                 reg_w(sd, R511_I2C_CTL, 0x05);
2248
2249                 do {
2250                         rc = reg_r(sd, R511_I2C_CTL);
2251                 } while (rc > 0 && ((rc & 1) == 0)); /* Retry until idle */
2252
2253                 if (rc < 0)
2254                         return rc;
2255
2256                 if ((rc & 2) == 0) /* Ack? */
2257                         break;
2258
2259                 /* I2C abort */
2260                 reg_w(sd, R511_I2C_CTL, 0x10);
2261
2262                 if (--retries < 0) {
2263                         PDEBUG(D_USBI, "i2c read retries exhausted");
2264                         return -1;
2265                 }
2266         }
2267
2268         value = reg_r(sd, R51x_I2C_DATA);
2269
2270         PDEBUG(D_USBI, "ov511_i2c_r %02x %02x", reg, value);
2271
2272         /* This is needed to make i2c_w() work */
2273         reg_w(sd, R511_I2C_CTL, 0x05);
2274
2275         return value;
2276 }
2277
2278 /*
2279  * The OV518 I2C I/O procedure is different, hence, this function.
2280  * This is normally only called from i2c_w(). Note that this function
2281  * always succeeds regardless of whether the sensor is present and working.
2282  */
2283 static void ov518_i2c_w(struct sd *sd,
2284                 u8 reg,
2285                 u8 value)
2286 {
2287         PDEBUG(D_USBO, "ov518_i2c_w %02x %02x", reg, value);
2288
2289         /* Select camera register */
2290         reg_w(sd, R51x_I2C_SADDR_3, reg);
2291
2292         /* Write "value" to I2C data port of OV511 */
2293         reg_w(sd, R51x_I2C_DATA, value);
2294
2295         /* Initiate 3-byte write cycle */
2296         reg_w(sd, R518_I2C_CTL, 0x01);
2297
2298         /* wait for write complete */
2299         msleep(4);
2300         reg_r8(sd, R518_I2C_CTL);
2301 }
2302
2303 /*
2304  * returns: negative is error, pos or zero is data
2305  *
2306  * The OV518 I2C I/O procedure is different, hence, this function.
2307  * This is normally only called from i2c_r(). Note that this function
2308  * always succeeds regardless of whether the sensor is present and working.
2309  */
2310 static int ov518_i2c_r(struct sd *sd, u8 reg)
2311 {
2312         int value;
2313
2314         /* Select camera register */
2315         reg_w(sd, R51x_I2C_SADDR_2, reg);
2316
2317         /* Initiate 2-byte write cycle */
2318         reg_w(sd, R518_I2C_CTL, 0x03);
2319
2320         /* Initiate 2-byte read cycle */
2321         reg_w(sd, R518_I2C_CTL, 0x05);
2322         value = reg_r(sd, R51x_I2C_DATA);
2323         PDEBUG(D_USBI, "ov518_i2c_r %02x %02x", reg, value);
2324         return value;
2325 }
2326
2327 static void ovfx2_i2c_w(struct sd *sd, u8 reg, u8 value)
2328 {
2329         int ret;
2330
2331         if (sd->gspca_dev.usb_err < 0)
2332                 return;
2333
2334         ret = usb_control_msg(sd->gspca_dev.dev,
2335                         usb_sndctrlpipe(sd->gspca_dev.dev, 0),
2336                         0x02,
2337                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2338                         (u16) value, (u16) reg, NULL, 0, 500);
2339
2340         if (ret < 0) {
2341                 err("ovfx2_i2c_w %02x failed %d", reg, ret);
2342                 sd->gspca_dev.usb_err = ret;
2343         }
2344
2345         PDEBUG(D_USBO, "ovfx2_i2c_w %02x %02x", reg, value);
2346 }
2347
2348 static int ovfx2_i2c_r(struct sd *sd, u8 reg)
2349 {
2350         int ret;
2351
2352         if (sd->gspca_dev.usb_err < 0)
2353                 return -1;
2354
2355         ret = usb_control_msg(sd->gspca_dev.dev,
2356                         usb_rcvctrlpipe(sd->gspca_dev.dev, 0),
2357                         0x03,
2358                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2359                         0, (u16) reg, sd->gspca_dev.usb_buf, 1, 500);
2360
2361         if (ret >= 0) {
2362                 ret = sd->gspca_dev.usb_buf[0];
2363                 PDEBUG(D_USBI, "ovfx2_i2c_r %02x %02x", reg, ret);
2364         } else {
2365                 err("ovfx2_i2c_r %02x failed %d", reg, ret);
2366                 sd->gspca_dev.usb_err = ret;
2367         }
2368
2369         return ret;
2370 }
2371
2372 static void i2c_w(struct sd *sd, u8 reg, u8 value)
2373 {
2374         if (sd->sensor_reg_cache[reg] == value)
2375                 return;
2376
2377         switch (sd->bridge) {
2378         case BRIDGE_OV511:
2379         case BRIDGE_OV511PLUS:
2380                 ov511_i2c_w(sd, reg, value);
2381                 break;
2382         case BRIDGE_OV518:
2383         case BRIDGE_OV518PLUS:
2384         case BRIDGE_OV519:
2385                 ov518_i2c_w(sd, reg, value);
2386                 break;
2387         case BRIDGE_OVFX2:
2388                 ovfx2_i2c_w(sd, reg, value);
2389                 break;
2390         case BRIDGE_W9968CF:
2391                 w9968cf_i2c_w(sd, reg, value);
2392                 break;
2393         }
2394
2395         if (sd->gspca_dev.usb_err >= 0) {
2396                 /* Up on sensor reset empty the register cache */
2397                 if (reg == 0x12 && (value & 0x80))
2398                         memset(sd->sensor_reg_cache, -1,
2399                                 sizeof(sd->sensor_reg_cache));
2400                 else
2401                         sd->sensor_reg_cache[reg] = value;
2402         }
2403 }
2404
2405 static int i2c_r(struct sd *sd, u8 reg)
2406 {
2407         int ret = -1;
2408
2409         if (sd->sensor_reg_cache[reg] != -1)
2410                 return sd->sensor_reg_cache[reg];
2411
2412         switch (sd->bridge) {
2413         case BRIDGE_OV511:
2414         case BRIDGE_OV511PLUS:
2415                 ret = ov511_i2c_r(sd, reg);
2416                 break;
2417         case BRIDGE_OV518:
2418         case BRIDGE_OV518PLUS:
2419         case BRIDGE_OV519:
2420                 ret = ov518_i2c_r(sd, reg);
2421                 break;
2422         case BRIDGE_OVFX2:
2423                 ret = ovfx2_i2c_r(sd, reg);
2424                 break;
2425         case BRIDGE_W9968CF:
2426                 ret = w9968cf_i2c_r(sd, reg);
2427                 break;
2428         }
2429
2430         if (ret >= 0)
2431                 sd->sensor_reg_cache[reg] = ret;
2432
2433         return ret;
2434 }
2435
2436 /* Writes bits at positions specified by mask to an I2C reg. Bits that are in
2437  * the same position as 1's in "mask" are cleared and set to "value". Bits
2438  * that are in the same position as 0's in "mask" are preserved, regardless
2439  * of their respective state in "value".
2440  */
2441 static void i2c_w_mask(struct sd *sd,
2442                         u8 reg,
2443                         u8 value,
2444                         u8 mask)
2445 {
2446         int rc;
2447         u8 oldval;
2448
2449         value &= mask;                  /* Enforce mask on value */
2450         rc = i2c_r(sd, reg);
2451         if (rc < 0)
2452                 return;
2453         oldval = rc & ~mask;            /* Clear the masked bits */
2454         value |= oldval;                /* Set the desired bits */
2455         i2c_w(sd, reg, value);
2456 }
2457
2458 /* Temporarily stops OV511 from functioning. Must do this before changing
2459  * registers while the camera is streaming */
2460 static inline void ov51x_stop(struct sd *sd)
2461 {
2462         PDEBUG(D_STREAM, "stopping");
2463         sd->stopped = 1;
2464         switch (sd->bridge) {
2465         case BRIDGE_OV511:
2466         case BRIDGE_OV511PLUS:
2467                 reg_w(sd, R51x_SYS_RESET, 0x3d);
2468                 break;
2469         case BRIDGE_OV518:
2470         case BRIDGE_OV518PLUS:
2471                 reg_w_mask(sd, R51x_SYS_RESET, 0x3a, 0x3a);
2472                 break;
2473         case BRIDGE_OV519:
2474                 reg_w(sd, OV519_R51_RESET1, 0x0f);
2475                 reg_w(sd, OV519_R51_RESET1, 0x00);
2476                 reg_w(sd, 0x22, 0x00);          /* FRAR */
2477                 break;
2478         case BRIDGE_OVFX2:
2479                 reg_w_mask(sd, 0x0f, 0x00, 0x02);
2480                 break;
2481         case BRIDGE_W9968CF:
2482                 reg_w(sd, 0x3c, 0x0a05); /* stop USB transfer */
2483                 break;
2484         }
2485 }
2486
2487 /* Restarts OV511 after ov511_stop() is called. Has no effect if it is not
2488  * actually stopped (for performance). */
2489 static inline void ov51x_restart(struct sd *sd)
2490 {
2491         PDEBUG(D_STREAM, "restarting");
2492         if (!sd->stopped)
2493                 return;
2494         sd->stopped = 0;
2495
2496         /* Reinitialize the stream */
2497         switch (sd->bridge) {
2498         case BRIDGE_OV511:
2499         case BRIDGE_OV511PLUS:
2500                 reg_w(sd, R51x_SYS_RESET, 0x00);
2501                 break;
2502         case BRIDGE_OV518:
2503         case BRIDGE_OV518PLUS:
2504                 reg_w(sd, 0x2f, 0x80);
2505                 reg_w(sd, R51x_SYS_RESET, 0x00);
2506                 break;
2507         case BRIDGE_OV519:
2508                 reg_w(sd, OV519_R51_RESET1, 0x0f);
2509                 reg_w(sd, OV519_R51_RESET1, 0x00);
2510                 reg_w(sd, 0x22, 0x1d);          /* FRAR */
2511                 break;
2512         case BRIDGE_OVFX2:
2513                 reg_w_mask(sd, 0x0f, 0x02, 0x02);
2514                 break;
2515         case BRIDGE_W9968CF:
2516                 reg_w(sd, 0x3c, 0x8a05); /* USB FIFO enable */
2517                 break;
2518         }
2519 }
2520
2521 static void ov51x_set_slave_ids(struct sd *sd, u8 slave);
2522
2523 /* This does an initial reset of an OmniVision sensor and ensures that I2C
2524  * is synchronized. Returns <0 on failure.
2525  */
2526 static int init_ov_sensor(struct sd *sd, u8 slave)
2527 {
2528         int i;
2529
2530         ov51x_set_slave_ids(sd, slave);
2531
2532         /* Reset the sensor */
2533         i2c_w(sd, 0x12, 0x80);
2534
2535         /* Wait for it to initialize */
2536         msleep(150);
2537
2538         for (i = 0; i < i2c_detect_tries; i++) {
2539                 if (i2c_r(sd, OV7610_REG_ID_HIGH) == 0x7f &&
2540                     i2c_r(sd, OV7610_REG_ID_LOW) == 0xa2) {
2541                         PDEBUG(D_PROBE, "I2C synced in %d attempt(s)", i);
2542                         return 0;
2543                 }
2544
2545                 /* Reset the sensor */
2546                 i2c_w(sd, 0x12, 0x80);
2547
2548                 /* Wait for it to initialize */
2549                 msleep(150);
2550
2551                 /* Dummy read to sync I2C */
2552                 if (i2c_r(sd, 0x00) < 0)
2553                         return -1;
2554         }
2555         return -1;
2556 }
2557
2558 /* Set the read and write slave IDs. The "slave" argument is the write slave,
2559  * and the read slave will be set to (slave + 1).
2560  * This should not be called from outside the i2c I/O functions.
2561  * Sets I2C read and write slave IDs. Returns <0 for error
2562  */
2563 static void ov51x_set_slave_ids(struct sd *sd,
2564                                 u8 slave)
2565 {
2566         switch (sd->bridge) {
2567         case BRIDGE_OVFX2:
2568                 reg_w(sd, OVFX2_I2C_ADDR, slave);
2569                 return;
2570         case BRIDGE_W9968CF:
2571                 sd->sensor_addr = slave;
2572                 return;
2573         }
2574
2575         reg_w(sd, R51x_I2C_W_SID, slave);
2576         reg_w(sd, R51x_I2C_R_SID, slave + 1);
2577 }
2578
2579 static void write_regvals(struct sd *sd,
2580                          const struct ov_regvals *regvals,
2581                          int n)
2582 {
2583         while (--n >= 0) {
2584                 reg_w(sd, regvals->reg, regvals->val);
2585                 regvals++;
2586         }
2587 }
2588
2589 static void write_i2c_regvals(struct sd *sd,
2590                         const struct ov_i2c_regvals *regvals,
2591                         int n)
2592 {
2593         while (--n >= 0) {
2594                 i2c_w(sd, regvals->reg, regvals->val);
2595                 regvals++;
2596         }
2597 }
2598
2599 /****************************************************************************
2600  *
2601  * OV511 and sensor configuration
2602  *
2603  ***************************************************************************/
2604
2605 /* This initializes the OV2x10 / OV3610 / OV3620 */
2606 static void ov_hires_configure(struct sd *sd)
2607 {
2608         int high, low;
2609
2610         if (sd->bridge != BRIDGE_OVFX2) {
2611                 err("error hires sensors only supported with ovfx2");
2612                 return;
2613         }
2614
2615         PDEBUG(D_PROBE, "starting ov hires configuration");
2616
2617         /* Detect sensor (sub)type */
2618         high = i2c_r(sd, 0x0a);
2619         low = i2c_r(sd, 0x0b);
2620         /* info("%x, %x", high, low); */
2621         if (high == 0x96 && low == 0x40) {
2622                 PDEBUG(D_PROBE, "Sensor is an OV2610");
2623                 sd->sensor = SEN_OV2610;
2624         } else if (high == 0x36 && (low & 0x0f) == 0x00) {
2625                 PDEBUG(D_PROBE, "Sensor is an OV3610");
2626                 sd->sensor = SEN_OV3610;
2627         } else {
2628                 err("Error unknown sensor type: %02x%02x",
2629                         high, low);
2630         }
2631 }
2632
2633 /* This initializes the OV8110, OV8610 sensor. The OV8110 uses
2634  * the same register settings as the OV8610, since they are very similar.
2635  */
2636 static void ov8xx0_configure(struct sd *sd)
2637 {
2638         int rc;
2639
2640         PDEBUG(D_PROBE, "starting ov8xx0 configuration");
2641
2642         /* Detect sensor (sub)type */
2643         rc = i2c_r(sd, OV7610_REG_COM_I);
2644         if (rc < 0) {
2645                 PDEBUG(D_ERR, "Error detecting sensor type");
2646                 return;
2647         }
2648         if ((rc & 3) == 1)
2649                 sd->sensor = SEN_OV8610;
2650         else
2651                 err("Unknown image sensor version: %d", rc & 3);
2652 }
2653
2654 /* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses
2655  * the same register settings as the OV7610, since they are very similar.
2656  */
2657 static void ov7xx0_configure(struct sd *sd)
2658 {
2659         int rc, high, low;
2660
2661         PDEBUG(D_PROBE, "starting OV7xx0 configuration");
2662
2663         /* Detect sensor (sub)type */
2664         rc = i2c_r(sd, OV7610_REG_COM_I);
2665
2666         /* add OV7670 here
2667          * it appears to be wrongly detected as a 7610 by default */
2668         if (rc < 0) {
2669                 PDEBUG(D_ERR, "Error detecting sensor type");
2670                 return;
2671         }
2672         if ((rc & 3) == 3) {
2673                 /* quick hack to make OV7670s work */
2674                 high = i2c_r(sd, 0x0a);
2675                 low = i2c_r(sd, 0x0b);
2676                 /* info("%x, %x", high, low); */
2677                 if (high == 0x76 && (low & 0xf0) == 0x70) {
2678                         PDEBUG(D_PROBE, "Sensor is an OV76%02x", low);
2679                         sd->sensor = SEN_OV7670;
2680                 } else {
2681                         PDEBUG(D_PROBE, "Sensor is an OV7610");
2682                         sd->sensor = SEN_OV7610;
2683                 }
2684         } else if ((rc & 3) == 1) {
2685                 /* I don't know what's different about the 76BE yet. */
2686                 if (i2c_r(sd, 0x15) & 1) {
2687                         PDEBUG(D_PROBE, "Sensor is an OV7620AE");
2688                         sd->sensor = SEN_OV7620AE;
2689                 } else {
2690                         PDEBUG(D_PROBE, "Sensor is an OV76BE");
2691                         sd->sensor = SEN_OV76BE;
2692                 }
2693         } else if ((rc & 3) == 0) {
2694                 /* try to read product id registers */
2695                 high = i2c_r(sd, 0x0a);
2696                 if (high < 0) {
2697                         PDEBUG(D_ERR, "Error detecting camera chip PID");
2698                         return;
2699                 }
2700                 low = i2c_r(sd, 0x0b);
2701                 if (low < 0) {
2702                         PDEBUG(D_ERR, "Error detecting camera chip VER");
2703                         return;
2704                 }
2705                 if (high == 0x76) {
2706                         switch (low) {
2707                         case 0x30:
2708                                 err("Sensor is an OV7630/OV7635");
2709                                 err("7630 is not supported by this driver");
2710                                 return;
2711                         case 0x40:
2712                                 PDEBUG(D_PROBE, "Sensor is an OV7645");
2713                                 sd->sensor = SEN_OV7640; /* FIXME */
2714                                 break;
2715                         case 0x45:
2716                                 PDEBUG(D_PROBE, "Sensor is an OV7645B");
2717                                 sd->sensor = SEN_OV7640; /* FIXME */
2718                                 break;
2719                         case 0x48:
2720                                 PDEBUG(D_PROBE, "Sensor is an OV7648");
2721                                 sd->sensor = SEN_OV7648;
2722                                 break;
2723                         case 0x60:
2724                                 PDEBUG(D_PROBE, "Sensor is a OV7660");
2725                                 sd->sensor = SEN_OV7660;
2726                                 sd->invert_led = 0;
2727                                 break;
2728                         default:
2729                                 PDEBUG(D_PROBE, "Unknown sensor: 0x76%x", low);
2730                                 return;
2731                         }
2732                 } else {
2733                         PDEBUG(D_PROBE, "Sensor is an OV7620");
2734                         sd->sensor = SEN_OV7620;
2735                 }
2736         } else {
2737                 err("Unknown image sensor version: %d", rc & 3);
2738         }
2739 }
2740
2741 /* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */
2742 static void ov6xx0_configure(struct sd *sd)
2743 {
2744         int rc;
2745         PDEBUG(D_PROBE, "starting OV6xx0 configuration");
2746
2747         /* Detect sensor (sub)type */
2748         rc = i2c_r(sd, OV7610_REG_COM_I);
2749         if (rc < 0) {
2750                 PDEBUG(D_ERR, "Error detecting sensor type");
2751                 return;
2752         }
2753
2754         /* Ugh. The first two bits are the version bits, but
2755          * the entire register value must be used. I guess OVT
2756          * underestimated how many variants they would make. */
2757         switch (rc) {
2758         case 0x00:
2759                 sd->sensor = SEN_OV6630;
2760                 warn("WARNING: Sensor is an OV66308. Your camera may have");
2761                 warn("been misdetected in previous driver versions.");
2762                 break;
2763         case 0x01:
2764                 sd->sensor = SEN_OV6620;
2765                 PDEBUG(D_PROBE, "Sensor is an OV6620");
2766                 break;
2767         case 0x02:
2768                 sd->sensor = SEN_OV6630;
2769                 PDEBUG(D_PROBE, "Sensor is an OV66308AE");
2770                 break;
2771         case 0x03:
2772                 sd->sensor = SEN_OV66308AF;
2773                 PDEBUG(D_PROBE, "Sensor is an OV66308AF");
2774                 break;
2775         case 0x90:
2776                 sd->sensor = SEN_OV6630;
2777                 warn("WARNING: Sensor is an OV66307. Your camera may have");
2778                 warn("been misdetected in previous driver versions.");
2779                 break;
2780         default:
2781                 err("FATAL: Unknown sensor version: 0x%02x", rc);
2782                 return;
2783         }
2784
2785         /* Set sensor-specific vars */
2786         sd->sif = 1;
2787 }
2788
2789 /* Turns on or off the LED. Only has an effect with OV511+/OV518(+)/OV519 */
2790 static void ov51x_led_control(struct sd *sd, int on)
2791 {
2792         if (sd->invert_led)
2793                 on = !on;
2794
2795         switch (sd->bridge) {
2796         /* OV511 has no LED control */
2797         case BRIDGE_OV511PLUS:
2798                 reg_w(sd, R511_SYS_LED_CTL, on);
2799                 break;
2800         case BRIDGE_OV518:
2801         case BRIDGE_OV518PLUS:
2802                 reg_w_mask(sd, R518_GPIO_OUT, 0x02 * on, 0x02);
2803                 break;
2804         case BRIDGE_OV519:
2805                 reg_w_mask(sd, OV519_GPIO_DATA_OUT0, on, 1);
2806                 break;
2807         }
2808 }
2809
2810 static void sd_reset_snapshot(struct gspca_dev *gspca_dev)
2811 {
2812         struct sd *sd = (struct sd *) gspca_dev;
2813
2814         if (!sd->snapshot_needs_reset)
2815                 return;
2816
2817         /* Note it is important that we clear sd->snapshot_needs_reset,
2818            before actually clearing the snapshot state in the bridge
2819            otherwise we might race with the pkt_scan interrupt handler */
2820         sd->snapshot_needs_reset = 0;
2821
2822         switch (sd->bridge) {
2823         case BRIDGE_OV511:
2824         case BRIDGE_OV511PLUS:
2825                 reg_w(sd, R51x_SYS_SNAP, 0x02);
2826                 reg_w(sd, R51x_SYS_SNAP, 0x00);
2827                 break;
2828         case BRIDGE_OV518:
2829         case BRIDGE_OV518PLUS:
2830                 reg_w(sd, R51x_SYS_SNAP, 0x02); /* Reset */
2831                 reg_w(sd, R51x_SYS_SNAP, 0x01); /* Enable */
2832                 break;
2833         case BRIDGE_OV519:
2834                 reg_w(sd, R51x_SYS_RESET, 0x40);
2835                 reg_w(sd, R51x_SYS_RESET, 0x00);
2836                 break;
2837         }
2838 }
2839
2840 static void ov51x_upload_quan_tables(struct sd *sd)
2841 {
2842         const unsigned char yQuanTable511[] = {
2843                 0, 1, 1, 2, 2, 3, 3, 4,
2844                 1, 1, 1, 2, 2, 3, 4, 4,
2845                 1, 1, 2, 2, 3, 4, 4, 4,
2846                 2, 2, 2, 3, 4, 4, 4, 4,
2847                 2, 2, 3, 4, 4, 5, 5, 5,
2848                 3, 3, 4, 4, 5, 5, 5, 5,
2849                 3, 4, 4, 4, 5, 5, 5, 5,
2850                 4, 4, 4, 4, 5, 5, 5, 5
2851         };
2852
2853         const unsigned char uvQuanTable511[] = {
2854                 0, 2, 2, 3, 4, 4, 4, 4,
2855                 2, 2, 2, 4, 4, 4, 4, 4,
2856                 2, 2, 3, 4, 4, 4, 4, 4,
2857                 3, 4, 4, 4, 4, 4, 4, 4,
2858                 4, 4, 4, 4, 4, 4, 4, 4,
2859                 4, 4, 4, 4, 4, 4, 4, 4,
2860                 4, 4, 4, 4, 4, 4, 4, 4,
2861                 4, 4, 4, 4, 4, 4, 4, 4
2862         };
2863
2864         /* OV518 quantization tables are 8x4 (instead of 8x8) */
2865         const unsigned char yQuanTable518[] = {
2866                 5, 4, 5, 6, 6, 7, 7, 7,
2867                 5, 5, 5, 5, 6, 7, 7, 7,
2868                 6, 6, 6, 6, 7, 7, 7, 8,
2869                 7, 7, 6, 7, 7, 7, 8, 8
2870         };
2871         const unsigned char uvQuanTable518[] = {
2872                 6, 6, 6, 7, 7, 7, 7, 7,
2873                 6, 6, 6, 7, 7, 7, 7, 7,
2874                 6, 6, 6, 7, 7, 7, 7, 8,
2875                 7, 7, 7, 7, 7, 7, 8, 8
2876         };
2877
2878         const unsigned char *pYTable, *pUVTable;
2879         unsigned char val0, val1;
2880         int i, size, reg = R51x_COMP_LUT_BEGIN;
2881
2882         PDEBUG(D_PROBE, "Uploading quantization tables");
2883
2884         if (sd->bridge == BRIDGE_OV511 || sd->bridge == BRIDGE_OV511PLUS) {
2885                 pYTable = yQuanTable511;
2886                 pUVTable = uvQuanTable511;
2887                 size = 32;
2888         } else {
2889                 pYTable = yQuanTable518;
2890                 pUVTable = uvQuanTable518;
2891                 size = 16;
2892         }
2893
2894         for (i = 0; i < size; i++) {
2895                 val0 = *pYTable++;
2896                 val1 = *pYTable++;
2897                 val0 &= 0x0f;
2898                 val1 &= 0x0f;
2899                 val0 |= val1 << 4;
2900                 reg_w(sd, reg, val0);
2901
2902                 val0 = *pUVTable++;
2903                 val1 = *pUVTable++;
2904                 val0 &= 0x0f;
2905                 val1 &= 0x0f;
2906                 val0 |= val1 << 4;
2907                 reg_w(sd, reg + size, val0);
2908
2909                 reg++;
2910         }
2911 }
2912
2913 /* This initializes the OV511/OV511+ and the sensor */
2914 static void ov511_configure(struct gspca_dev *gspca_dev)
2915 {
2916         struct sd *sd = (struct sd *) gspca_dev;
2917
2918         /* For 511 and 511+ */
2919         const struct ov_regvals init_511[] = {
2920                 { R51x_SYS_RESET,       0x7f },
2921                 { R51x_SYS_INIT,        0x01 },
2922                 { R51x_SYS_RESET,       0x7f },
2923                 { R51x_SYS_INIT,        0x01 },
2924                 { R51x_SYS_RESET,       0x3f },
2925                 { R51x_SYS_INIT,        0x01 },
2926                 { R51x_SYS_RESET,       0x3d },
2927         };
2928
2929         const struct ov_regvals norm_511[] = {
2930                 { R511_DRAM_FLOW_CTL,   0x01 },
2931                 { R51x_SYS_SNAP,        0x00 },
2932                 { R51x_SYS_SNAP,        0x02 },
2933                 { R51x_SYS_SNAP,        0x00 },
2934                 { R511_FIFO_OPTS,       0x1f },
2935                 { R511_COMP_EN,         0x00 },
2936                 { R511_COMP_LUT_EN,     0x03 },
2937         };
2938
2939         const struct ov_regvals norm_511_p[] = {
2940                 { R511_DRAM_FLOW_CTL,   0xff },
2941                 { R51x_SYS_SNAP,        0x00 },
2942                 { R51x_SYS_SNAP,        0x02 },
2943                 { R51x_SYS_SNAP,        0x00 },
2944                 { R511_FIFO_OPTS,       0xff },
2945                 { R511_COMP_EN,         0x00 },
2946                 { R511_COMP_LUT_EN,     0x03 },
2947         };
2948
2949         const struct ov_regvals compress_511[] = {
2950                 { 0x70, 0x1f },
2951                 { 0x71, 0x05 },
2952                 { 0x72, 0x06 },
2953                 { 0x73, 0x06 },
2954                 { 0x74, 0x14 },
2955                 { 0x75, 0x03 },
2956                 { 0x76, 0x04 },
2957                 { 0x77, 0x04 },
2958         };
2959
2960         PDEBUG(D_PROBE, "Device custom id %x", reg_r(sd, R51x_SYS_CUST_ID));
2961
2962         write_regvals(sd, init_511, ARRAY_SIZE(init_511));
2963
2964         switch (sd->bridge) {
2965         case BRIDGE_OV511:
2966                 write_regvals(sd, norm_511, ARRAY_SIZE(norm_511));
2967                 break;
2968         case BRIDGE_OV511PLUS:
2969                 write_regvals(sd, norm_511_p, ARRAY_SIZE(norm_511_p));
2970                 break;
2971         }
2972
2973         /* Init compression */
2974         write_regvals(sd, compress_511, ARRAY_SIZE(compress_511));
2975
2976         ov51x_upload_quan_tables(sd);
2977 }
2978
2979 /* This initializes the OV518/OV518+ and the sensor */
2980 static void ov518_configure(struct gspca_dev *gspca_dev)
2981 {
2982         struct sd *sd = (struct sd *) gspca_dev;
2983
2984         /* For 518 and 518+ */
2985         const struct ov_regvals init_518[] = {
2986                 { R51x_SYS_RESET,       0x40 },
2987                 { R51x_SYS_INIT,        0xe1 },
2988                 { R51x_SYS_RESET,       0x3e },
2989                 { R51x_SYS_INIT,        0xe1 },
2990                 { R51x_SYS_RESET,       0x00 },
2991                 { R51x_SYS_INIT,        0xe1 },
2992                 { 0x46,                 0x00 },
2993                 { 0x5d,                 0x03 },
2994         };
2995
2996         const struct ov_regvals norm_518[] = {
2997                 { R51x_SYS_SNAP,        0x02 }, /* Reset */
2998                 { R51x_SYS_SNAP,        0x01 }, /* Enable */
2999                 { 0x31,                 0x0f },
3000                 { 0x5d,                 0x03 },
3001                 { 0x24,                 0x9f },
3002                 { 0x25,                 0x90 },
3003                 { 0x20,                 0x00 },
3004                 { 0x51,                 0x04 },
3005                 { 0x71,                 0x19 },
3006                 { 0x2f,                 0x80 },
3007         };
3008
3009         const struct ov_regvals norm_518_p[] = {
3010                 { R51x_SYS_SNAP,        0x02 }, /* Reset */
3011                 { R51x_SYS_SNAP,        0x01 }, /* Enable */
3012                 { 0x31,                 0x0f },
3013                 { 0x5d,                 0x03 },
3014                 { 0x24,                 0x9f },
3015                 { 0x25,                 0x90 },
3016                 { 0x20,                 0x60 },
3017                 { 0x51,                 0x02 },
3018                 { 0x71,                 0x19 },
3019                 { 0x40,                 0xff },
3020                 { 0x41,                 0x42 },
3021                 { 0x46,                 0x00 },
3022                 { 0x33,                 0x04 },
3023                 { 0x21,                 0x19 },
3024                 { 0x3f,                 0x10 },
3025                 { 0x2f,                 0x80 },
3026         };
3027
3028         /* First 5 bits of custom ID reg are a revision ID on OV518 */
3029         PDEBUG(D_PROBE, "Device revision %d",
3030                 0x1f & reg_r(sd, R51x_SYS_CUST_ID));
3031
3032         write_regvals(sd, init_518, ARRAY_SIZE(init_518));
3033
3034         /* Set LED GPIO pin to output mode */
3035         reg_w_mask(sd, R518_GPIO_CTL, 0x00, 0x02);
3036
3037         switch (sd->bridge) {
3038         case BRIDGE_OV518:
3039                 write_regvals(sd, norm_518, ARRAY_SIZE(norm_518));
3040                 break;
3041         case BRIDGE_OV518PLUS:
3042                 write_regvals(sd, norm_518_p, ARRAY_SIZE(norm_518_p));
3043                 break;
3044         }
3045
3046         ov51x_upload_quan_tables(sd);
3047
3048         reg_w(sd, 0x2f, 0x80);
3049 }
3050
3051 static void ov519_configure(struct sd *sd)
3052 {
3053         static const struct ov_regvals init_519[] = {
3054                 { 0x5a, 0x6d }, /* EnableSystem */
3055                 { 0x53, 0x9b }, /* don't enable the microcontroller */
3056                 { OV519_R54_EN_CLK1, 0xff }, /* set bit2 to enable jpeg */
3057                 { 0x5d, 0x03 },
3058                 { 0x49, 0x01 },
3059                 { 0x48, 0x00 },
3060                 /* Set LED pin to output mode. Bit 4 must be cleared or sensor
3061                  * detection will fail. This deserves further investigation. */
3062                 { OV519_GPIO_IO_CTRL0,   0xee },
3063                 { OV519_R51_RESET1, 0x0f },
3064                 { OV519_R51_RESET1, 0x00 },
3065                 { 0x22, 0x00 },
3066                 /* windows reads 0x55 at this point*/
3067         };
3068
3069         write_regvals(sd, init_519, ARRAY_SIZE(init_519));
3070 }
3071
3072 static void ovfx2_configure(struct sd *sd)
3073 {
3074         static const struct ov_regvals init_fx2[] = {
3075                 { 0x00, 0x60 },
3076                 { 0x02, 0x01 },
3077                 { 0x0f, 0x1d },
3078                 { 0xe9, 0x82 },
3079                 { 0xea, 0xc7 },
3080                 { 0xeb, 0x10 },
3081                 { 0xec, 0xf6 },
3082         };
3083
3084         sd->stopped = 1;
3085
3086         write_regvals(sd, init_fx2, ARRAY_SIZE(init_fx2));
3087 }
3088
3089 /* set the mode */
3090 /* This function works for ov7660 only */
3091 static void ov519_set_mode(struct sd *sd)
3092 {
3093         static const struct ov_regvals bridge_ov7660[2][10] = {
3094                 {{0x10, 0x14}, {0x11, 0x1e}, {0x12, 0x00}, {0x13, 0x00},
3095                  {0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x20, 0x0c},
3096                  {0x25, 0x01}, {0x26, 0x00}},
3097                 {{0x10, 0x28}, {0x11, 0x3c}, {0x12, 0x00}, {0x13, 0x00},
3098                  {0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x20, 0x0c},
3099                  {0x25, 0x03}, {0x26, 0x00}}
3100         };
3101         static const struct ov_i2c_regvals sensor_ov7660[2][3] = {
3102                 {{0x12, 0x00}, {0x24, 0x00}, {0x0c, 0x0c}},
3103                 {{0x12, 0x00}, {0x04, 0x00}, {0x0c, 0x00}}
3104         };
3105         static const struct ov_i2c_regvals sensor_ov7660_2[] = {
3106                 {OV7670_R17_HSTART, 0x13},
3107                 {OV7670_R18_HSTOP, 0x01},
3108                 {OV7670_R32_HREF, 0x92},
3109                 {OV7670_R19_VSTART, 0x02},
3110                 {OV7670_R1A_VSTOP, 0x7a},
3111                 {OV7670_R03_VREF, 0x00},
3112 /*              {0x33, 0x00}, */
3113 /*              {0x34, 0x07}, */
3114 /*              {0x36, 0x00}, */
3115 /*              {0x6b, 0x0a}, */
3116         };
3117
3118         write_regvals(sd, bridge_ov7660[sd->gspca_dev.curr_mode],
3119                         ARRAY_SIZE(bridge_ov7660[0]));
3120         write_i2c_regvals(sd, sensor_ov7660[sd->gspca_dev.curr_mode],
3121                         ARRAY_SIZE(sensor_ov7660[0]));
3122         write_i2c_regvals(sd, sensor_ov7660_2,
3123                         ARRAY_SIZE(sensor_ov7660_2));
3124 }
3125
3126 /* set the frame rate */
3127 /* This function works for sensors ov7640, ov7648 ov7660 and ov7670 only */
3128 static void ov519_set_fr(struct sd *sd)
3129 {
3130         int fr;
3131         u8 clock;
3132         /* frame rate table with indices:
3133          *      - mode = 0: 320x240, 1: 640x480
3134          *      - fr rate = 0: 30, 1: 25, 2: 20, 3: 15, 4: 10, 5: 5
3135          *      - reg = 0: bridge a4, 1: bridge 23, 2: sensor 11 (clock)
3136          */
3137         static const u8 fr_tb[2][6][3] = {
3138                 {{0x04, 0xff, 0x00},
3139                  {0x04, 0x1f, 0x00},
3140                  {0x04, 0x1b, 0x00},
3141                  {0x04, 0x15, 0x00},
3142                  {0x04, 0x09, 0x00},
3143                  {0x04, 0x01, 0x00}},
3144                 {{0x0c, 0xff, 0x00},
3145                  {0x0c, 0x1f, 0x00},
3146                  {0x0c, 0x1b, 0x00},
3147                  {0x04, 0xff, 0x01},
3148                  {0x04, 0x1f, 0x01},
3149                  {0x04, 0x1b, 0x01}},
3150         };
3151
3152         if (frame_rate > 0)
3153                 sd->frame_rate = frame_rate;
3154         if (sd->frame_rate >= 30)
3155                 fr = 0;
3156         else if (sd->frame_rate >= 25)
3157                 fr = 1;
3158         else if (sd->frame_rate >= 20)
3159                 fr = 2;
3160         else if (sd->frame_rate >= 15)
3161                 fr = 3;
3162         else if (sd->frame_rate >= 10)
3163                 fr = 4;
3164         else
3165                 fr = 5;
3166         reg_w(sd, 0xa4, fr_tb[sd->gspca_dev.curr_mode][fr][0]);
3167         reg_w(sd, 0x23, fr_tb[sd->gspca_dev.curr_mode][fr][1]);
3168         clock = fr_tb[sd->gspca_dev.curr_mode][fr][2];
3169         if (sd->sensor == SEN_OV7660)
3170                 clock |= 0x80;          /* enable double clock */
3171         ov518_i2c_w(sd, OV7670_R11_CLKRC, clock);
3172 }
3173
3174 /* this function is called at probe time */
3175 static int sd_config(struct gspca_dev *gspca_dev,
3176                         const struct usb_device_id *id)
3177 {
3178         struct sd *sd = (struct sd *) gspca_dev;
3179         struct cam *cam = &gspca_dev->cam;
3180
3181         sd->bridge = id->driver_info & BRIDGE_MASK;
3182         sd->invert_led = (id->driver_info & BRIDGE_INVERT_LED) != 0;
3183
3184         switch (sd->bridge) {
3185         case BRIDGE_OV511:
3186         case BRIDGE_OV511PLUS:
3187                 cam->cam_mode = ov511_vga_mode;
3188                 cam->nmodes = ARRAY_SIZE(ov511_vga_mode);
3189                 break;
3190         case BRIDGE_OV518:
3191         case BRIDGE_OV518PLUS:
3192                 cam->cam_mode = ov518_vga_mode;
3193                 cam->nmodes = ARRAY_SIZE(ov518_vga_mode);
3194                 break;
3195         case BRIDGE_OV519:
3196                 cam->cam_mode = ov519_vga_mode;
3197                 cam->nmodes = ARRAY_SIZE(ov519_vga_mode);
3198                 sd->invert_led = !sd->invert_led;
3199                 break;
3200         case BRIDGE_OVFX2:
3201                 cam->cam_mode = ov519_vga_mode;
3202                 cam->nmodes = ARRAY_SIZE(ov519_vga_mode);
3203                 cam->bulk_size = OVFX2_BULK_SIZE;
3204                 cam->bulk_nurbs = MAX_NURBS;
3205                 cam->bulk = 1;
3206                 break;
3207         case BRIDGE_W9968CF:
3208                 cam->cam_mode = w9968cf_vga_mode;
3209                 cam->nmodes = ARRAY_SIZE(w9968cf_vga_mode);
3210                 cam->reverse_alts = 1;
3211                 break;
3212         }
3213
3214         gspca_dev->cam.ctrls = sd->ctrls;
3215         sd->quality = QUALITY_DEF;
3216
3217         return 0;
3218 }
3219
3220 /* this function is called at probe and resume time */
3221 static int sd_init(struct gspca_dev *gspca_dev)
3222 {
3223         struct sd *sd = (struct sd *) gspca_dev;
3224         struct cam *cam = &gspca_dev->cam;
3225
3226         switch (sd->bridge) {
3227         case BRIDGE_OV511:
3228         case BRIDGE_OV511PLUS:
3229                 ov511_configure(gspca_dev);
3230                 break;
3231         case BRIDGE_OV518:
3232         case BRIDGE_OV518PLUS:
3233                 ov518_configure(gspca_dev);
3234                 break;
3235         case BRIDGE_OV519:
3236                 ov519_configure(sd);
3237                 break;
3238         case BRIDGE_OVFX2:
3239                 ovfx2_configure(sd);
3240                 break;
3241         case BRIDGE_W9968CF:
3242                 w9968cf_configure(sd);
3243                 break;
3244         }
3245
3246         /* The OV519 must be more aggressive about sensor detection since
3247          * I2C write will never fail if the sensor is not present. We have
3248          * to try to initialize the sensor to detect its presence */
3249         sd->sensor = -1;
3250
3251         /* Test for 76xx */
3252         if (init_ov_sensor(sd, OV7xx0_SID) >= 0) {
3253                 ov7xx0_configure(sd);
3254
3255         /* Test for 6xx0 */
3256         } else if (init_ov_sensor(sd, OV6xx0_SID) >= 0) {
3257                 ov6xx0_configure(sd);
3258
3259         /* Test for 8xx0 */
3260         } else if (init_ov_sensor(sd, OV8xx0_SID) >= 0) {
3261                 ov8xx0_configure(sd);
3262
3263         /* Test for 3xxx / 2xxx */
3264         } else if (init_ov_sensor(sd, OV_HIRES_SID) >= 0) {
3265                 ov_hires_configure(sd);
3266         } else {
3267                 err("Can't determine sensor slave IDs");
3268                 goto error;
3269         }
3270
3271         if (sd->sensor < 0)
3272                 goto error;
3273
3274         ov51x_led_control(sd, 0);       /* turn LED off */
3275
3276         switch (sd->bridge) {
3277         case BRIDGE_OV511:
3278         case BRIDGE_OV511PLUS:
3279                 if (sd->sif) {
3280                         cam->cam_mode = ov511_sif_mode;
3281                         cam->nmodes = ARRAY_SIZE(ov511_sif_mode);
3282                 }
3283                 break;
3284         case BRIDGE_OV518:
3285         case BRIDGE_OV518PLUS:
3286                 if (sd->sif) {
3287                         cam->cam_mode = ov518_sif_mode;
3288                         cam->nmodes = ARRAY_SIZE(ov518_sif_mode);
3289                 }
3290                 break;
3291         case BRIDGE_OV519:
3292                 if (sd->sif) {
3293                         cam->cam_mode = ov519_sif_mode;
3294                         cam->nmodes = ARRAY_SIZE(ov519_sif_mode);
3295                 }
3296                 break;
3297         case BRIDGE_OVFX2:
3298                 if (sd->sensor == SEN_OV2610) {
3299                         cam->cam_mode = ovfx2_ov2610_mode;
3300                         cam->nmodes = ARRAY_SIZE(ovfx2_ov2610_mode);
3301                 } else if (sd->sensor == SEN_OV3610) {
3302                         cam->cam_mode = ovfx2_ov3610_mode;
3303                         cam->nmodes = ARRAY_SIZE(ovfx2_ov3610_mode);
3304                 } else if (sd->sif) {
3305                         cam->cam_mode = ov519_sif_mode;
3306                         cam->nmodes = ARRAY_SIZE(ov519_sif_mode);
3307                 }
3308                 break;
3309         case BRIDGE_W9968CF:
3310                 if (sd->sif)
3311                         cam->nmodes = ARRAY_SIZE(w9968cf_vga_mode) - 1;
3312
3313                 /* w9968cf needs initialisation once the sensor is known */
3314                 w9968cf_init(sd);
3315                 break;
3316         }
3317
3318         gspca_dev->ctrl_dis = ctrl_dis[sd->sensor];
3319
3320         /* initialize the sensor */
3321         switch (sd->sensor) {
3322         case SEN_OV2610:
3323                 write_i2c_regvals(sd, norm_2610, ARRAY_SIZE(norm_2610));
3324
3325                 /* Enable autogain, autoexpo, awb, bandfilter */
3326                 i2c_w_mask(sd, 0x13, 0x27, 0x27);
3327                 break;
3328         case SEN_OV3610:
3329                 write_i2c_regvals(sd, norm_3620b, ARRAY_SIZE(norm_3620b));
3330
3331                 /* Enable autogain, autoexpo, awb, bandfilter */
3332                 i2c_w_mask(sd, 0x13, 0x27, 0x27);
3333                 break;
3334         case SEN_OV6620:
3335                 write_i2c_regvals(sd, norm_6x20, ARRAY_SIZE(norm_6x20));
3336                 break;
3337         case SEN_OV6630:
3338         case SEN_OV66308AF:
3339                 sd->ctrls[CONTRAST].def = 200;
3340                                  /* The default is too low for the ov6630 */
3341                 write_i2c_regvals(sd, norm_6x30, ARRAY_SIZE(norm_6x30));
3342                 break;
3343         default:
3344 /*      case SEN_OV7610: */
3345 /*      case SEN_OV76BE: */
3346                 write_i2c_regvals(sd, norm_7610, ARRAY_SIZE(norm_7610));
3347                 i2c_w_mask(sd, 0x0e, 0x00, 0x40);
3348                 break;
3349         case SEN_OV7620:
3350         case SEN_OV7620AE:
3351                 write_i2c_regvals(sd, norm_7620, ARRAY_SIZE(norm_7620));
3352                 break;
3353         case SEN_OV7640:
3354         case SEN_OV7648:
3355                 write_i2c_regvals(sd, norm_7640, ARRAY_SIZE(norm_7640));
3356                 break;
3357         case SEN_OV7660:
3358                 i2c_w(sd, OV7670_R12_COM7, OV7670_COM7_RESET);
3359                 msleep(14);
3360                 reg_w(sd, OV519_R57_SNAPSHOT, 0x23);
3361                 write_regvals(sd, init_519_ov7660,
3362                                 ARRAY_SIZE(init_519_ov7660));
3363                 write_i2c_regvals(sd, norm_7660, ARRAY_SIZE(norm_7660));
3364                 sd->gspca_dev.curr_mode = 1;    /* 640x480 */
3365                 sd->frame_rate = 15;
3366                 ov519_set_mode(sd);
3367                 ov519_set_fr(sd);
3368                 sd->ctrls[COLORS].max = 4;      /* 0..4 */
3369                 sd->ctrls[COLORS].val =
3370                         sd->ctrls[COLORS].def = 2;
3371                 setcolors(gspca_dev);
3372                 sd->ctrls[CONTRAST].max = 6;    /* 0..6 */
3373                 sd->ctrls[CONTRAST].val =
3374                         sd->ctrls[CONTRAST].def = 3;
3375                 setcontrast(gspca_dev);
3376                 sd->ctrls[BRIGHTNESS].max = 6;  /* 0..6 */
3377                 sd->ctrls[BRIGHTNESS].val =
3378                         sd->ctrls[BRIGHTNESS].def = 3;
3379                 setbrightness(gspca_dev);
3380                 sd_reset_snapshot(gspca_dev);
3381                 ov51x_restart(sd);
3382                 ov51x_stop(sd);                 /* not in win traces */
3383                 ov51x_led_control(sd, 0);
3384                 break;
3385         case SEN_OV7670:
3386                 sd->ctrls[FREQ].max = 3;        /* auto */
3387                 sd->ctrls[FREQ].def = 3;
3388                 write_i2c_regvals(sd, norm_7670, ARRAY_SIZE(norm_7670));
3389                 break;
3390         case SEN_OV8610:
3391                 write_i2c_regvals(sd, norm_8610, ARRAY_SIZE(norm_8610));
3392                 break;
3393         }
3394         return gspca_dev->usb_err;
3395 error:
3396         PDEBUG(D_ERR, "OV519 Config failed");
3397         return -EINVAL;
3398 }
3399
3400 /* Set up the OV511/OV511+ with the given image parameters.
3401  *
3402  * Do not put any sensor-specific code in here (including I2C I/O functions)
3403  */
3404 static void ov511_mode_init_regs(struct sd *sd)
3405 {
3406         int hsegs, vsegs, packet_size, fps, needed;
3407         int interlaced = 0;
3408         struct usb_host_interface *alt;
3409         struct usb_interface *intf;
3410
3411         intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
3412         alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
3413         if (!alt) {
3414                 err("Couldn't get altsetting");
3415                 sd->gspca_dev.usb_err = -EIO;
3416                 return;
3417         }
3418
3419         packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
3420         reg_w(sd, R51x_FIFO_PSIZE, packet_size >> 5);
3421
3422         reg_w(sd, R511_CAM_UV_EN, 0x01);
3423         reg_w(sd, R511_SNAP_UV_EN, 0x01);
3424         reg_w(sd, R511_SNAP_OPTS, 0x03);
3425
3426         /* Here I'm assuming that snapshot size == image size.
3427          * I hope that's always true. --claudio
3428          */
3429         hsegs = (sd->gspca_dev.width >> 3) - 1;
3430         vsegs = (sd->gspca_dev.height >> 3) - 1;
3431
3432         reg_w(sd, R511_CAM_PXCNT, hsegs);
3433         reg_w(sd, R511_CAM_LNCNT, vsegs);
3434         reg_w(sd, R511_CAM_PXDIV, 0x00);
3435         reg_w(sd, R511_CAM_LNDIV, 0x00);
3436
3437         /* YUV420, low pass filter on */
3438         reg_w(sd, R511_CAM_OPTS, 0x03);
3439
3440         /* Snapshot additions */
3441         reg_w(sd, R511_SNAP_PXCNT, hsegs);
3442         reg_w(sd, R511_SNAP_LNCNT, vsegs);
3443         reg_w(sd, R511_SNAP_PXDIV, 0x00);
3444         reg_w(sd, R511_SNAP_LNDIV, 0x00);
3445
3446         /******** Set the framerate ********/
3447         if (frame_rate > 0)
3448                 sd->frame_rate = frame_rate;
3449
3450         switch (sd->sensor) {
3451         case SEN_OV6620:
3452                 /* No framerate control, doesn't like higher rates yet */
3453                 sd->clockdiv = 3;
3454                 break;
3455
3456         /* Note once the FIXME's in mode_init_ov_sensor_regs() are fixed
3457            for more sensors we need to do this for them too */
3458         case SEN_OV7620:
3459         case SEN_OV7620AE:
3460         case SEN_OV7640:
3461         case SEN_OV7648:
3462         case SEN_OV76BE:
3463                 if (sd->gspca_dev.width == 320)
3464                         interlaced = 1;
3465                 /* Fall through */
3466         case SEN_OV6630:
3467         case SEN_OV7610:
3468         case SEN_OV7670:
3469                 switch (sd->frame_rate) {
3470                 case 30:
3471                 case 25:
3472                         /* Not enough bandwidth to do 640x480 @ 30 fps */
3473                         if (sd->gspca_dev.width != 640) {
3474                                 sd->clockdiv = 0;
3475                                 break;
3476                         }
3477                         /* Fall through for 640x480 case */
3478                 default:
3479 /*              case 20: */
3480 /*              case 15: */
3481                         sd->clockdiv = 1;
3482                         break;
3483                 case 10:
3484                         sd->clockdiv = 2;
3485                         break;
3486                 case 5:
3487                         sd->clockdiv = 5;
3488                         break;
3489                 }
3490                 if (interlaced) {
3491                         sd->clockdiv = (sd->clockdiv + 1) * 2 - 1;
3492                         /* Higher then 10 does not work */
3493                         if (sd->clockdiv > 10)
3494                                 sd->clockdiv = 10;
3495                 }
3496                 break;
3497
3498         case SEN_OV8610:
3499                 /* No framerate control ?? */
3500                 sd->clockdiv = 0;
3501                 break;
3502         }
3503
3504         /* Check if we have enough bandwidth to disable compression */
3505         fps = (interlaced ? 60 : 30) / (sd->clockdiv + 1) + 1;
3506         needed = fps * sd->gspca_dev.width * sd->gspca_dev.height * 3 / 2;
3507         /* 1400 is a conservative estimate of the max nr of isoc packets/sec */
3508         if (needed > 1400 * packet_size) {
3509                 /* Enable Y and UV quantization and compression */
3510                 reg_w(sd, R511_COMP_EN, 0x07);
3511                 reg_w(sd, R511_COMP_LUT_EN, 0x03);
3512         } else {
3513                 reg_w(sd, R511_COMP_EN, 0x06);
3514                 reg_w(sd, R511_COMP_LUT_EN, 0x00);
3515         }
3516
3517         reg_w(sd, R51x_SYS_RESET, OV511_RESET_OMNICE);
3518         reg_w(sd, R51x_SYS_RESET, 0);
3519 }
3520
3521 /* Sets up the OV518/OV518+ with the given image parameters
3522  *
3523  * OV518 needs a completely different approach, until we can figure out what
3524  * the individual registers do. Also, only 15 FPS is supported now.
3525  *
3526  * Do not put any sensor-specific code in here (including I2C I/O functions)
3527  */
3528 static void ov518_mode_init_regs(struct sd *sd)
3529 {
3530         int hsegs, vsegs, packet_size;
3531         struct usb_host_interface *alt;
3532         struct usb_interface *intf;
3533
3534         intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
3535         alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
3536         if (!alt) {
3537                 err("Couldn't get altsetting");
3538                 sd->gspca_dev.usb_err = -EIO;
3539                 return;
3540         }
3541
3542         packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
3543         ov518_reg_w32(sd, R51x_FIFO_PSIZE, packet_size & ~7, 2);
3544
3545         /******** Set the mode ********/
3546         reg_w(sd, 0x2b, 0);
3547         reg_w(sd, 0x2c, 0);
3548         reg_w(sd, 0x2d, 0);
3549         reg_w(sd, 0x2e, 0);
3550         reg_w(sd, 0x3b, 0);
3551         reg_w(sd, 0x3c, 0);
3552         reg_w(sd, 0x3d, 0);
3553         reg_w(sd, 0x3e, 0);
3554
3555         if (sd->bridge == BRIDGE_OV518) {
3556                 /* Set 8-bit (YVYU) input format */
3557                 reg_w_mask(sd, 0x20, 0x08, 0x08);
3558
3559                 /* Set 12-bit (4:2:0) output format */
3560                 reg_w_mask(sd, 0x28, 0x80, 0xf0);
3561                 reg_w_mask(sd, 0x38, 0x80, 0xf0);
3562         } else {
3563                 reg_w(sd, 0x28, 0x80);
3564                 reg_w(sd, 0x38, 0x80);
3565         }
3566
3567         hsegs = sd->gspca_dev.width / 16;
3568         vsegs = sd->gspca_dev.height / 4;
3569
3570         reg_w(sd, 0x29, hsegs);
3571         reg_w(sd, 0x2a, vsegs);
3572
3573         reg_w(sd, 0x39, hsegs);
3574         reg_w(sd, 0x3a, vsegs);
3575
3576         /* Windows driver does this here; who knows why */
3577         reg_w(sd, 0x2f, 0x80);
3578
3579         /******** Set the framerate ********/
3580         sd->clockdiv = 1;
3581
3582         /* Mode independent, but framerate dependent, regs */
3583         /* 0x51: Clock divider; Only works on some cams which use 2 crystals */
3584         reg_w(sd, 0x51, 0x04);
3585         reg_w(sd, 0x22, 0x18);
3586         reg_w(sd, 0x23, 0xff);
3587
3588         if (sd->bridge == BRIDGE_OV518PLUS) {
3589                 switch (sd->sensor) {
3590                 case SEN_OV7620AE:
3591                         if (sd->gspca_dev.width == 320) {
3592                                 reg_w(sd, 0x20, 0x00);
3593                                 reg_w(sd, 0x21, 0x19);
3594                         } else {
3595                                 reg_w(sd, 0x20, 0x60);
3596                                 reg_w(sd, 0x21, 0x1f);
3597                         }
3598                         break;
3599                 case SEN_OV7620:
3600                         reg_w(sd, 0x20, 0x00);
3601                         reg_w(sd, 0x21, 0x19);
3602                         break;
3603                 default:
3604                         reg_w(sd, 0x21, 0x19);
3605                 }
3606         } else
3607                 reg_w(sd, 0x71, 0x17);  /* Compression-related? */
3608
3609         /* FIXME: Sensor-specific */
3610         /* Bit 5 is what matters here. Of course, it is "reserved" */
3611         i2c_w(sd, 0x54, 0x23);
3612
3613         reg_w(sd, 0x2f, 0x80);
3614
3615         if (sd->bridge == BRIDGE_OV518PLUS) {
3616                 reg_w(sd, 0x24, 0x94);
3617                 reg_w(sd, 0x25, 0x90);
3618                 ov518_reg_w32(sd, 0xc4,    400, 2);     /* 190h   */
3619                 ov518_reg_w32(sd, 0xc6,    540, 2);     /* 21ch   */
3620                 ov518_reg_w32(sd, 0xc7,    540, 2);     /* 21ch   */
3621                 ov518_reg_w32(sd, 0xc8,    108, 2);     /* 6ch    */
3622                 ov518_reg_w32(sd, 0xca, 131098, 3);     /* 2001ah */
3623                 ov518_reg_w32(sd, 0xcb,    532, 2);     /* 214h   */
3624                 ov518_reg_w32(sd, 0xcc,   2400, 2);     /* 960h   */
3625                 ov518_reg_w32(sd, 0xcd,     32, 2);     /* 20h    */
3626                 ov518_reg_w32(sd, 0xce,    608, 2);     /* 260h   */
3627         } else {
3628                 reg_w(sd, 0x24, 0x9f);
3629                 reg_w(sd, 0x25, 0x90);
3630                 ov518_reg_w32(sd, 0xc4,    400, 2);     /* 190h   */
3631                 ov518_reg_w32(sd, 0xc6,    381, 2);     /* 17dh   */
3632                 ov518_reg_w32(sd, 0xc7,    381, 2);     /* 17dh   */
3633                 ov518_reg_w32(sd, 0xc8,    128, 2);     /* 80h    */
3634                 ov518_reg_w32(sd, 0xca, 183331, 3);     /* 2cc23h */
3635                 ov518_reg_w32(sd, 0xcb,    746, 2);     /* 2eah   */
3636                 ov518_reg_w32(sd, 0xcc,   1750, 2);     /* 6d6h   */
3637                 ov518_reg_w32(sd, 0xcd,     45, 2);     /* 2dh    */
3638                 ov518_reg_w32(sd, 0xce,    851, 2);     /* 353h   */
3639         }
3640
3641         reg_w(sd, 0x2f, 0x80);
3642 }
3643
3644 /* Sets up the OV519 with the given image parameters
3645  *
3646  * OV519 needs a completely different approach, until we can figure out what
3647  * the individual registers do.
3648  *
3649  * Do not put any sensor-specific code in here (including I2C I/O functions)
3650  */
3651 static void ov519_mode_init_regs(struct sd *sd)
3652 {
3653         static const struct ov_regvals mode_init_519_ov7670[] = {
3654                 { 0x5d, 0x03 }, /* Turn off suspend mode */
3655                 { 0x53, 0x9f }, /* was 9b in 1.65-1.08 */
3656                 { OV519_R54_EN_CLK1, 0x0f }, /* bit2 (jpeg enable) */
3657                 { 0xa2, 0x20 }, /* a2-a5 are undocumented */
3658                 { 0xa3, 0x18 },
3659                 { 0xa4, 0x04 },
3660                 { 0xa5, 0x28 },
3661                 { 0x37, 0x00 }, /* SetUsbInit */
3662                 { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
3663                 /* Enable both fields, YUV Input, disable defect comp (why?) */
3664                 { 0x20, 0x0c },
3665                 { 0x21, 0x38 },
3666                 { 0x22, 0x1d },
3667                 { 0x17, 0x50 }, /* undocumented */
3668                 { 0x37, 0x00 }, /* undocumented */
3669                 { 0x40, 0xff }, /* I2C timeout counter */
3670                 { 0x46, 0x00 }, /* I2C clock prescaler */
3671                 { 0x59, 0x04 }, /* new from windrv 090403 */
3672                 { 0xff, 0x00 }, /* undocumented */
3673                 /* windows reads 0x55 at this point, why? */
3674         };
3675
3676         static const struct ov_regvals mode_init_519[] = {
3677                 { 0x5d, 0x03 }, /* Turn off suspend mode */
3678                 { 0x53, 0x9f }, /* was 9b in 1.65-1.08 */
3679                 { OV519_R54_EN_CLK1, 0x0f }, /* bit2 (jpeg enable) */
3680                 { 0xa2, 0x20 }, /* a2-a5 are undocumented */
3681                 { 0xa3, 0x18 },
3682                 { 0xa4, 0x04 },
3683                 { 0xa5, 0x28 },
3684                 { 0x37, 0x00 }, /* SetUsbInit */
3685                 { 0x55, 0x02 }, /* 4.096 Mhz audio clock */
3686                 /* Enable both fields, YUV Input, disable defect comp (why?) */
3687                 { 0x22, 0x1d },
3688                 { 0x17, 0x50 }, /* undocumented */
3689                 { 0x37, 0x00 }, /* undocumented */
3690                 { 0x40, 0xff }, /* I2C timeout counter */
3691                 { 0x46, 0x00 }, /* I2C clock prescaler */
3692                 { 0x59, 0x04 }, /* new from windrv 090403 */
3693                 { 0xff, 0x00 }, /* undocumented */
3694                 /* windows reads 0x55 at this point, why? */
3695         };
3696
3697         /******** Set the mode ********/
3698         switch (sd->sensor) {
3699         default:
3700                 write_regvals(sd, mode_init_519, ARRAY_SIZE(mode_init_519));
3701                 if (sd->sensor == SEN_OV7640 ||
3702                     sd->sensor == SEN_OV7648) {
3703                         /* Select 8-bit input mode */
3704                         reg_w_mask(sd, OV519_R20_DFR, 0x10, 0x10);
3705                 }
3706                 break;
3707         case SEN_OV7660:
3708                 return;         /* done by ov519_set_mode/fr() */
3709         case SEN_OV7670:
3710                 write_regvals(sd, mode_init_519_ov7670,
3711                                 ARRAY_SIZE(mode_init_519_ov7670));
3712                 break;
3713         }
3714
3715         reg_w(sd, OV519_R10_H_SIZE,     sd->gspca_dev.width >> 4);
3716         reg_w(sd, OV519_R11_V_SIZE,     sd->gspca_dev.height >> 3);
3717         if (sd->sensor == SEN_OV7670 &&
3718             sd->gspca_dev.cam.cam_mode[sd->gspca_dev.curr_mode].priv)
3719                 reg_w(sd, OV519_R12_X_OFFSETL, 0x04);
3720         else if (sd->sensor == SEN_OV7648 &&
3721             sd->gspca_dev.cam.cam_mode[sd->gspca_dev.curr_mode].priv)
3722                 reg_w(sd, OV519_R12_X_OFFSETL, 0x01);
3723         else
3724                 reg_w(sd, OV519_R12_X_OFFSETL, 0x00);
3725         reg_w(sd, OV519_R13_X_OFFSETH,  0x00);
3726         reg_w(sd, OV519_R14_Y_OFFSETL,  0x00);
3727         reg_w(sd, OV519_R15_Y_OFFSETH,  0x00);
3728         reg_w(sd, OV519_R16_DIVIDER,    0x00);
3729         reg_w(sd, OV519_R25_FORMAT,     0x03); /* YUV422 */
3730         reg_w(sd, 0x26,                 0x00); /* Undocumented */
3731
3732         /******** Set the framerate ********/
3733         if (frame_rate > 0)
3734                 sd->frame_rate = frame_rate;
3735
3736 /* FIXME: These are only valid at the max resolution. */
3737         sd->clockdiv = 0;
3738         switch (sd->sensor) {
3739         case SEN_OV7640:
3740         case SEN_OV7648:
3741                 switch (sd->frame_rate) {
3742                 default:
3743 /*              case 30: */
3744                         reg_w(sd, 0xa4, 0x0c);
3745                         reg_w(sd, 0x23, 0xff);
3746                         break;
3747                 case 25:
3748                         reg_w(sd, 0xa4, 0x0c);
3749                         reg_w(sd, 0x23, 0x1f);
3750                         break;
3751                 case 20:
3752                         reg_w(sd, 0xa4, 0x0c);
3753                         reg_w(sd, 0x23, 0x1b);
3754                         break;
3755                 case 15:
3756                         reg_w(sd, 0xa4, 0x04);
3757                         reg_w(sd, 0x23, 0xff);
3758                         sd->clockdiv = 1;
3759                         break;
3760                 case 10:
3761                         reg_w(sd, 0xa4, 0x04);
3762                         reg_w(sd, 0x23, 0x1f);
3763                         sd->clockdiv = 1;
3764                         break;
3765                 case 5:
3766                         reg_w(sd, 0xa4, 0x04);
3767                         reg_w(sd, 0x23, 0x1b);
3768                         sd->clockdiv = 1;
3769                         break;
3770                 }
3771                 break;
3772         case SEN_OV8610:
3773                 switch (sd->frame_rate) {
3774                 default:        /* 15 fps */
3775 /*              case 15: */
3776                         reg_w(sd, 0xa4, 0x06);
3777                         reg_w(sd, 0x23, 0xff);
3778                         break;
3779                 case 10:
3780                         reg_w(sd, 0xa4, 0x06);
3781                         reg_w(sd, 0x23, 0x1f);
3782                         break;
3783                 case 5:
3784                         reg_w(sd, 0xa4, 0x06);
3785                         reg_w(sd, 0x23, 0x1b);
3786                         break;
3787                 }
3788                 break;
3789         case SEN_OV7670:                /* guesses, based on 7640 */
3790                 PDEBUG(D_STREAM, "Setting framerate to %d fps",
3791                                  (sd->frame_rate == 0) ? 15 : sd->frame_rate);
3792                 reg_w(sd, 0xa4, 0x10);
3793                 switch (sd->frame_rate) {
3794                 case 30:
3795                         reg_w(sd, 0x23, 0xff);
3796                         break;
3797                 case 20:
3798                         reg_w(sd, 0x23, 0x1b);
3799                         break;
3800                 default:
3801 /*              case 15: */
3802                         reg_w(sd, 0x23, 0xff);
3803                         sd->clockdiv = 1;
3804                         break;
3805                 }
3806                 break;
3807         }
3808 }
3809
3810 static void mode_init_ov_sensor_regs(struct sd *sd)
3811 {
3812         struct gspca_dev *gspca_dev;
3813         int qvga, xstart, xend, ystart, yend;
3814         u8 v;
3815
3816         gspca_dev = &sd->gspca_dev;
3817         qvga = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv & 1;
3818
3819         /******** Mode (VGA/QVGA) and sensor specific regs ********/
3820         switch (sd->sensor) {
3821         case SEN_OV2610:
3822                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
3823                 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
3824                 i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a);
3825                 i2c_w(sd, 0x25, qvga ? 0x30 : 0x60);
3826                 i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
3827                 i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0);
3828                 i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
3829                 return;
3830         case SEN_OV3610:
3831                 if (qvga) {
3832                         xstart = (1040 - gspca_dev->width) / 2 + (0x1f << 4);
3833                         ystart = (776 - gspca_dev->height) / 2;
3834                 } else {
3835                         xstart = (2076 - gspca_dev->width) / 2 + (0x10 << 4);
3836                         ystart = (1544 - gspca_dev->height) / 2;
3837                 }
3838                 xend = xstart + gspca_dev->width;
3839                 yend = ystart + gspca_dev->height;
3840                 /* Writing to the COMH register resets the other windowing regs
3841                    to their default values, so we must do this first. */
3842                 i2c_w_mask(sd, 0x12, qvga ? 0x40 : 0x00, 0xf0);
3843                 i2c_w_mask(sd, 0x32,
3844                            (((xend >> 1) & 7) << 3) | ((xstart >> 1) & 7),
3845                            0x3f);
3846                 i2c_w_mask(sd, 0x03,
3847                            (((yend >> 1) & 3) << 2) | ((ystart >> 1) & 3),
3848                            0x0f);
3849                 i2c_w(sd, 0x17, xstart >> 4);
3850                 i2c_w(sd, 0x18, xend >> 4);
3851                 i2c_w(sd, 0x19, ystart >> 3);
3852                 i2c_w(sd, 0x1a, yend >> 3);
3853                 return;
3854         case SEN_OV8610:
3855                 /* For OV8610 qvga means qsvga */
3856                 i2c_w_mask(sd, OV7610_REG_COM_C, qvga ? (1 << 5) : 0, 1 << 5);
3857                 i2c_w_mask(sd, 0x13, 0x00, 0x20); /* Select 16 bit data bus */
3858                 i2c_w_mask(sd, 0x12, 0x04, 0x06); /* AWB: 1 Test pattern: 0 */
3859                 i2c_w_mask(sd, 0x2d, 0x00, 0x40); /* from windrv 090403 */
3860                 i2c_w_mask(sd, 0x28, 0x20, 0x20); /* progressive mode on */
3861                 break;
3862         case SEN_OV7610:
3863                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
3864                 i2c_w(sd, 0x35, qvga ? 0x1e : 0x9e);
3865                 i2c_w_mask(sd, 0x13, 0x00, 0x20); /* Select 16 bit data bus */
3866                 i2c_w_mask(sd, 0x12, 0x04, 0x06); /* AWB: 1 Test pattern: 0 */
3867                 break;
3868         case SEN_OV7620:
3869         case SEN_OV7620AE:
3870         case SEN_OV76BE:
3871                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
3872                 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
3873                 i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a);
3874                 i2c_w(sd, 0x25, qvga ? 0x30 : 0x60);
3875                 i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
3876                 i2c_w_mask(sd, 0x67, qvga ? 0xb0 : 0x90, 0xf0);
3877                 i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
3878                 i2c_w_mask(sd, 0x13, 0x00, 0x20); /* Select 16 bit data bus */
3879                 i2c_w_mask(sd, 0x12, 0x04, 0x06); /* AWB: 1 Test pattern: 0 */
3880                 if (sd->sensor == SEN_OV76BE)
3881                         i2c_w(sd, 0x35, qvga ? 0x1e : 0x9e);
3882                 break;
3883         case SEN_OV7640:
3884         case SEN_OV7648:
3885                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
3886                 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
3887                 /* Setting this undocumented bit in qvga mode removes a very
3888                    annoying vertical shaking of the image */
3889                 i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
3890                 /* Unknown */
3891                 i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0);
3892                 /* Allow higher automatic gain (to allow higher framerates) */
3893                 i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
3894                 i2c_w_mask(sd, 0x12, 0x04, 0x04); /* AWB: 1 */
3895                 break;
3896         case SEN_OV7670:
3897                 /* set COM7_FMT_VGA or COM7_FMT_QVGA
3898                  * do we need to set anything else?
3899                  *      HSTART etc are set in set_ov_sensor_window itself */
3900                 i2c_w_mask(sd, OV7670_R12_COM7,
3901                          qvga ? OV7670_COM7_FMT_QVGA : OV7670_COM7_FMT_VGA,
3902                          OV7670_COM7_FMT_MASK);
3903                 i2c_w_mask(sd, 0x13, 0x00, 0x20); /* Select 16 bit data bus */
3904                 i2c_w_mask(sd, OV7670_R13_COM8, OV7670_COM8_AWB,
3905                                 OV7670_COM8_AWB);
3906                 if (qvga) {             /* QVGA from ov7670.c by
3907                                          * Jonathan Corbet */
3908                         xstart = 164;
3909                         xend = 28;
3910                         ystart = 14;
3911                         yend = 494;
3912                 } else {                /* VGA */
3913                         xstart = 158;
3914                         xend = 14;
3915                         ystart = 10;
3916                         yend = 490;
3917                 }
3918                 /* OV7670 hardware window registers are split across
3919                  * multiple locations */
3920                 i2c_w(sd, OV7670_R17_HSTART, xstart >> 3);
3921                 i2c_w(sd, OV7670_R18_HSTOP, xend >> 3);
3922                 v = i2c_r(sd, OV7670_R32_HREF);
3923                 v = (v & 0xc0) | ((xend & 0x7) << 3) | (xstart & 0x07);
3924                 msleep(10);     /* need to sleep between read and write to
3925                                  * same reg! */
3926                 i2c_w(sd, OV7670_R32_HREF, v);
3927
3928                 i2c_w(sd, OV7670_R19_VSTART, ystart >> 2);
3929                 i2c_w(sd, OV7670_R1A_VSTOP, yend >> 2);
3930                 v = i2c_r(sd, OV7670_R03_VREF);
3931                 v = (v & 0xc0) | ((yend & 0x3) << 2) | (ystart & 0x03);
3932                 msleep(10);     /* need to sleep between read and write to
3933                                  * same reg! */
3934                 i2c_w(sd, OV7670_R03_VREF, v);
3935                 break;
3936         case SEN_OV6620:
3937                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
3938                 i2c_w_mask(sd, 0x13, 0x00, 0x20); /* Select 16 bit data bus */
3939                 i2c_w_mask(sd, 0x12, 0x04, 0x06); /* AWB: 1 Test pattern: 0 */
3940                 break;
3941         case SEN_OV6630:
3942         case SEN_OV66308AF:
3943                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
3944                 i2c_w_mask(sd, 0x12, 0x04, 0x06); /* AWB: 1 Test pattern: 0 */
3945                 break;
3946         default:
3947                 return;
3948         }
3949
3950         /******** Clock programming ********/
3951         i2c_w(sd, 0x11, sd->clockdiv);
3952 }
3953
3954 /* this function works for bridge ov519 and sensors ov7660 and ov7670 only */
3955 static void sethvflip(struct gspca_dev *gspca_dev)
3956 {
3957         struct sd *sd = (struct sd *) gspca_dev;
3958
3959         if (sd->gspca_dev.streaming)
3960                 reg_w(sd, OV519_R51_RESET1, 0x0f);      /* block stream */
3961         i2c_w_mask(sd, OV7670_R1E_MVFP,
3962                 OV7670_MVFP_MIRROR * sd->ctrls[HFLIP].val
3963                         | OV7670_MVFP_VFLIP * sd->ctrls[VFLIP].val,
3964                 OV7670_MVFP_MIRROR | OV7670_MVFP_VFLIP);
3965         if (sd->gspca_dev.streaming)
3966                 reg_w(sd, OV519_R51_RESET1, 0x00);      /* restart stream */
3967 }
3968
3969 static void set_ov_sensor_window(struct sd *sd)
3970 {
3971         struct gspca_dev *gspca_dev;
3972         int qvga, crop;
3973         int hwsbase, hwebase, vwsbase, vwebase, hwscale, vwscale;
3974
3975         /* mode setup is fully handled in mode_init_ov_sensor_regs for these */
3976         switch (sd->sensor) {
3977         case SEN_OV2610:
3978         case SEN_OV3610:
3979         case SEN_OV7670:
3980                 mode_init_ov_sensor_regs(sd);
3981                 return;
3982         case SEN_OV7660:
3983                 ov519_set_mode(sd);
3984                 ov519_set_fr(sd);
3985                 return;
3986         }
3987
3988         gspca_dev = &sd->gspca_dev;
3989         qvga = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv & 1;
3990         crop = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv & 2;
3991
3992         /* The different sensor ICs handle setting up of window differently.
3993          * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!! */
3994         switch (sd->sensor) {
3995         case SEN_OV8610:
3996                 hwsbase = 0x1e;
3997                 hwebase = 0x1e;
3998                 vwsbase = 0x02;
3999                 vwebase = 0x02;
4000                 break;
4001         case SEN_OV7610:
4002         case SEN_OV76BE:
4003                 hwsbase = 0x38;
4004                 hwebase = 0x3a;
4005                 vwsbase = vwebase = 0x05;
4006                 break;
4007         case SEN_OV6620:
4008         case SEN_OV6630:
4009         case SEN_OV66308AF:
4010                 hwsbase = 0x38;
4011                 hwebase = 0x3a;
4012                 vwsbase = 0x05;
4013                 vwebase = 0x06;
4014                 if (sd->sensor == SEN_OV66308AF && qvga)
4015                         /* HDG: this fixes U and V getting swapped */
4016                         hwsbase++;
4017                 if (crop) {
4018                         hwsbase += 8;
4019                         hwebase += 8;
4020                         vwsbase += 11;
4021                         vwebase += 11;
4022                 }
4023                 break;
4024         case SEN_OV7620:
4025         case SEN_OV7620AE:
4026                 hwsbase = 0x2f;         /* From 7620.SET (spec is wrong) */
4027                 hwebase = 0x2f;
4028                 vwsbase = vwebase = 0x05;
4029                 break;
4030         case SEN_OV7640:
4031         case SEN_OV7648:
4032                 hwsbase = 0x1a;
4033                 hwebase = 0x1a;
4034                 vwsbase = vwebase = 0x03;
4035                 break;
4036         default:
4037                 return;
4038         }
4039
4040         switch (sd->sensor) {
4041         case SEN_OV6620:
4042         case SEN_OV6630:
4043         case SEN_OV66308AF:
4044                 if (qvga) {             /* QCIF */
4045                         hwscale = 0;
4046                         vwscale = 0;
4047                 } else {                /* CIF */
4048                         hwscale = 1;
4049                         vwscale = 1;    /* The datasheet says 0;
4050                                          * it's wrong */
4051                 }
4052                 break;
4053         case SEN_OV8610:
4054                 if (qvga) {             /* QSVGA */
4055                         hwscale = 1;
4056                         vwscale = 1;
4057                 } else {                /* SVGA */
4058                         hwscale = 2;
4059                         vwscale = 2;
4060                 }
4061                 break;
4062         default:                        /* SEN_OV7xx0 */
4063                 if (qvga) {             /* QVGA */
4064                         hwscale = 1;
4065                         vwscale = 0;
4066                 } else {                /* VGA */
4067                         hwscale = 2;
4068                         vwscale = 1;
4069                 }
4070         }
4071
4072         mode_init_ov_sensor_regs(sd);
4073
4074         i2c_w(sd, 0x17, hwsbase);
4075         i2c_w(sd, 0x18, hwebase + (sd->sensor_width >> hwscale));
4076         i2c_w(sd, 0x19, vwsbase);
4077         i2c_w(sd, 0x1a, vwebase + (sd->sensor_height >> vwscale));
4078 }
4079
4080 /* -- start the camera -- */
4081 static int sd_start(struct gspca_dev *gspca_dev)
4082 {
4083         struct sd *sd = (struct sd *) gspca_dev;
4084
4085         /* Default for most bridges, allow bridge_mode_init_regs to override */
4086         sd->sensor_width = sd->gspca_dev.width;
4087         sd->sensor_height = sd->gspca_dev.height;
4088
4089         switch (sd->bridge) {
4090         case BRIDGE_OV511:
4091         case BRIDGE_OV511PLUS:
4092                 ov511_mode_init_regs(sd);
4093                 break;
4094         case BRIDGE_OV518:
4095         case BRIDGE_OV518PLUS:
4096                 ov518_mode_init_regs(sd);
4097                 break;
4098         case BRIDGE_OV519:
4099                 ov519_mode_init_regs(sd);
4100                 break;
4101         /* case BRIDGE_OVFX2: nothing to do */
4102         case BRIDGE_W9968CF:
4103                 w9968cf_mode_init_regs(sd);
4104                 break;
4105         }
4106
4107         set_ov_sensor_window(sd);
4108
4109         if (!(sd->gspca_dev.ctrl_dis & (1 << CONTRAST)))
4110                 setcontrast(gspca_dev);
4111         if (!(sd->gspca_dev.ctrl_dis & (1 << BRIGHTNESS)))
4112                 setbrightness(gspca_dev);
4113         if (!(sd->gspca_dev.ctrl_dis & (1 << COLORS)))
4114                 setcolors(gspca_dev);
4115         if (!(sd->gspca_dev.ctrl_dis & ((1 << HFLIP) | (1 << VFLIP))))
4116                 sethvflip(gspca_dev);
4117         if (!(sd->gspca_dev.ctrl_dis & (1 << AUTOBRIGHT)))
4118                 setautobright(gspca_dev);
4119         if (!(sd->gspca_dev.ctrl_dis & (1 << FREQ)))
4120                 setfreq_i(sd);
4121
4122         /* Force clear snapshot state in case the snapshot button was
4123            pressed while we weren't streaming */
4124         sd->snapshot_needs_reset = 1;
4125         sd_reset_snapshot(gspca_dev);
4126
4127         sd->first_frame = 3;
4128
4129         ov51x_restart(sd);
4130         ov51x_led_control(sd, 1);
4131         return gspca_dev->usb_err;
4132 }
4133
4134 static void sd_stopN(struct gspca_dev *gspca_dev)
4135 {
4136         struct sd *sd = (struct sd *) gspca_dev;
4137
4138         ov51x_stop(sd);
4139         ov51x_led_control(sd, 0);
4140 }
4141
4142 static void sd_stop0(struct gspca_dev *gspca_dev)
4143 {
4144         struct sd *sd = (struct sd *) gspca_dev;
4145
4146         if (!sd->gspca_dev.present)
4147                 return;
4148         if (sd->bridge == BRIDGE_W9968CF)
4149                 w9968cf_stop0(sd);
4150
4151 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
4152         /* If the last button state is pressed, release it now! */
4153         if (sd->snapshot_pressed) {
4154                 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
4155                 input_sync(gspca_dev->input_dev);
4156                 sd->snapshot_pressed = 0;
4157         }
4158 #endif
4159         if (sd->bridge == BRIDGE_OV519)
4160                 reg_w(sd, OV519_R57_SNAPSHOT, 0x23);
4161 }
4162
4163 static void ov51x_handle_button(struct gspca_dev *gspca_dev, u8 state)
4164 {
4165         struct sd *sd = (struct sd *) gspca_dev;
4166
4167         if (sd->snapshot_pressed != state) {
4168 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
4169                 input_report_key(gspca_dev->input_dev, KEY_CAMERA, state);
4170                 input_sync(gspca_dev->input_dev);
4171 #endif
4172                 if (state)
4173                         sd->snapshot_needs_reset = 1;
4174
4175                 sd->snapshot_pressed = state;
4176         } else {
4177                 /* On the ov511 / ov519 we need to reset the button state
4178                    multiple times, as resetting does not work as long as the
4179                    button stays pressed */
4180                 switch (sd->bridge) {
4181                 case BRIDGE_OV511:
4182                 case BRIDGE_OV511PLUS:
4183                 case BRIDGE_OV519:
4184                         if (state)
4185                                 sd->snapshot_needs_reset = 1;
4186                         break;
4187                 }
4188         }
4189 }
4190
4191 static void ov511_pkt_scan(struct gspca_dev *gspca_dev,
4192                         u8 *in,                 /* isoc packet */
4193                         int len)                /* iso packet length */
4194 {
4195         struct sd *sd = (struct sd *) gspca_dev;
4196
4197         /* SOF/EOF packets have 1st to 8th bytes zeroed and the 9th
4198          * byte non-zero. The EOF packet has image width/height in the
4199          * 10th and 11th bytes. The 9th byte is given as follows:
4200          *
4201          * bit 7: EOF
4202          *     6: compression enabled
4203          *     5: 422/420/400 modes
4204          *     4: 422/420/400 modes
4205          *     3: 1
4206          *     2: snapshot button on
4207          *     1: snapshot frame
4208          *     0: even/odd field
4209          */
4210         if (!(in[0] | in[1] | in[2] | in[3] | in[4] | in[5] | in[6] | in[7]) &&
4211             (in[8] & 0x08)) {
4212                 ov51x_handle_button(gspca_dev, (in[8] >> 2) & 1);
4213                 if (in[8] & 0x80) {
4214                         /* Frame end */
4215                         if ((in[9] + 1) * 8 != gspca_dev->width ||
4216                             (in[10] + 1) * 8 != gspca_dev->height) {
4217                                 PDEBUG(D_ERR, "Invalid frame size, got: %dx%d,"
4218                                         " requested: %dx%d\n",
4219                                         (in[9] + 1) * 8, (in[10] + 1) * 8,
4220                                         gspca_dev->width, gspca_dev->height);
4221                                 gspca_dev->last_packet_type = DISCARD_PACKET;
4222                                 return;
4223                         }
4224                         /* Add 11 byte footer to frame, might be usefull */
4225                         gspca_frame_add(gspca_dev, LAST_PACKET, in, 11);
4226                         return;
4227                 } else {
4228                         /* Frame start */
4229                         gspca_frame_add(gspca_dev, FIRST_PACKET, in, 0);
4230                         sd->packet_nr = 0;
4231                 }
4232         }
4233
4234         /* Ignore the packet number */
4235         len--;
4236
4237         /* intermediate packet */
4238         gspca_frame_add(gspca_dev, INTER_PACKET, in, len);
4239 }
4240
4241 static void ov518_pkt_scan(struct gspca_dev *gspca_dev,
4242                         u8 *data,                       /* isoc packet */
4243                         int len)                        /* iso packet length */
4244 {
4245         struct sd *sd = (struct sd *) gspca_dev;
4246
4247         /* A false positive here is likely, until OVT gives me
4248          * the definitive SOF/EOF format */
4249         if ((!(data[0] | data[1] | data[2] | data[3] | data[5])) && data[6]) {
4250                 ov51x_handle_button(gspca_dev, (data[6] >> 1) & 1);
4251                 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
4252                 gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
4253                 sd->packet_nr = 0;
4254         }
4255
4256         if (gspca_dev->last_packet_type == DISCARD_PACKET)
4257                 return;
4258
4259         /* Does this device use packet numbers ? */
4260         if (len & 7) {
4261                 len--;
4262                 if (sd->packet_nr == data[len])
4263                         sd->packet_nr++;
4264                 /* The last few packets of the frame (which are all 0's
4265                    except that they may contain part of the footer), are
4266                    numbered 0 */
4267                 else if (sd->packet_nr == 0 || data[len]) {
4268                         PDEBUG(D_ERR, "Invalid packet nr: %d (expect: %d)",
4269                                 (int)data[len], (int)sd->packet_nr);
4270                         gspca_dev->last_packet_type = DISCARD_PACKET;
4271                         return;
4272                 }
4273         }
4274
4275         /* intermediate packet */
4276         gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
4277 }
4278
4279 static void ov519_pkt_scan(struct gspca_dev *gspca_dev,
4280                         u8 *data,                       /* isoc packet */
4281                         int len)                        /* iso packet length */
4282 {
4283         /* Header of ov519 is 16 bytes:
4284          *     Byte     Value      Description
4285          *      0       0xff    magic
4286          *      1       0xff    magic
4287          *      2       0xff    magic
4288          *      3       0xXX    0x50 = SOF, 0x51 = EOF
4289          *      9       0xXX    0x01 initial frame without data,
4290          *                      0x00 standard frame with image
4291          *      14      Lo      in EOF: length of image data / 8
4292          *      15      Hi
4293          */
4294
4295         if (data[0] == 0xff && data[1] == 0xff && data[2] == 0xff) {
4296                 switch (data[3]) {
4297                 case 0x50:              /* start of frame */
4298                         /* Don't check the button state here, as the state
4299                            usually (always ?) changes at EOF and checking it
4300                            here leads to unnecessary snapshot state resets. */
4301 #define HDRSZ 16
4302                         data += HDRSZ;
4303                         len -= HDRSZ;
4304 #undef HDRSZ
4305                         if (data[0] == 0xff || data[1] == 0xd8)
4306                                 gspca_frame_add(gspca_dev, FIRST_PACKET,
4307                                                 data, len);
4308                         else
4309                                 gspca_dev->last_packet_type = DISCARD_PACKET;
4310                         return;
4311                 case 0x51:              /* end of frame */
4312                         ov51x_handle_button(gspca_dev, data[11] & 1);
4313                         if (data[9] != 0)
4314                                 gspca_dev->last_packet_type = DISCARD_PACKET;
4315                         gspca_frame_add(gspca_dev, LAST_PACKET,
4316                                         NULL, 0);
4317                         return;
4318                 }
4319         }
4320
4321         /* intermediate packet */
4322         gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
4323 }
4324
4325 static void ovfx2_pkt_scan(struct gspca_dev *gspca_dev,
4326                         u8 *data,                       /* isoc packet */
4327                         int len)                        /* iso packet length */
4328 {
4329         struct sd *sd = (struct sd *) gspca_dev;
4330
4331         gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
4332
4333         /* A short read signals EOF */
4334         if (len < OVFX2_BULK_SIZE) {
4335                 /* If the frame is short, and it is one of the first ones
4336                    the sensor and bridge are still syncing, so drop it. */
4337                 if (sd->first_frame) {
4338                         sd->first_frame--;
4339                         if (gspca_dev->image_len <
4340                                   sd->gspca_dev.width * sd->gspca_dev.height)
4341                                 gspca_dev->last_packet_type = DISCARD_PACKET;
4342                 }
4343                 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
4344                 gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
4345         }
4346 }
4347
4348 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
4349                         u8 *data,                       /* isoc packet */
4350                         int len)                        /* iso packet length */
4351 {
4352         struct sd *sd = (struct sd *) gspca_dev;
4353
4354         switch (sd->bridge) {
4355         case BRIDGE_OV511:
4356         case BRIDGE_OV511PLUS:
4357                 ov511_pkt_scan(gspca_dev, data, len);
4358                 break;
4359         case BRIDGE_OV518:
4360         case BRIDGE_OV518PLUS:
4361                 ov518_pkt_scan(gspca_dev, data, len);
4362                 break;
4363         case BRIDGE_OV519:
4364                 ov519_pkt_scan(gspca_dev, data, len);
4365                 break;
4366         case BRIDGE_OVFX2:
4367                 ovfx2_pkt_scan(gspca_dev, data, len);
4368                 break;
4369         case BRIDGE_W9968CF:
4370                 w9968cf_pkt_scan(gspca_dev, data, len);
4371                 break;
4372         }
4373 }
4374
4375 /* -- management routines -- */
4376
4377 static void setbrightness(struct gspca_dev *gspca_dev)
4378 {
4379         struct sd *sd = (struct sd *) gspca_dev;
4380         int val;
4381         static const struct ov_i2c_regvals brit_7660[][7] = {
4382                 {{0x0f, 0x6a}, {0x24, 0x40}, {0x25, 0x2b}, {0x26, 0x90},
4383                         {0x27, 0xe0}, {0x28, 0xe0}, {0x2c, 0xe0}},
4384                 {{0x0f, 0x6a}, {0x24, 0x50}, {0x25, 0x40}, {0x26, 0xa1},
4385                         {0x27, 0xc0}, {0x28, 0xc0}, {0x2c, 0xc0}},
4386                 {{0x0f, 0x6a}, {0x24, 0x68}, {0x25, 0x58}, {0x26, 0xc2},
4387                         {0x27, 0xa0}, {0x28, 0xa0}, {0x2c, 0xa0}},
4388                 {{0x0f, 0x6a}, {0x24, 0x70}, {0x25, 0x68}, {0x26, 0xd3},
4389                         {0x27, 0x80}, {0x28, 0x80}, {0x2c, 0x80}},
4390                 {{0x0f, 0x6a}, {0x24, 0x80}, {0x25, 0x70}, {0x26, 0xd3},
4391                         {0x27, 0x20}, {0x28, 0x20}, {0x2c, 0x20}},
4392                 {{0x0f, 0x6a}, {0x24, 0x88}, {0x25, 0x78}, {0x26, 0xd3},
4393                         {0x27, 0x40}, {0x28, 0x40}, {0x2c, 0x40}},
4394                 {{0x0f, 0x6a}, {0x24, 0x90}, {0x25, 0x80}, {0x26, 0xd4},
4395                         {0x27, 0x60}, {0x28, 0x60}, {0x2c, 0x60}}
4396         };
4397
4398         val = sd->ctrls[BRIGHTNESS].val;
4399         switch (sd->sensor) {
4400         case SEN_OV8610:
4401         case SEN_OV7610:
4402         case SEN_OV76BE:
4403         case SEN_OV6620:
4404         case SEN_OV6630:
4405         case SEN_OV66308AF:
4406         case SEN_OV7640:
4407         case SEN_OV7648:
4408                 i2c_w(sd, OV7610_REG_BRT, val);
4409                 break;
4410         case SEN_OV7620:
4411         case SEN_OV7620AE:
4412                 /* 7620 doesn't like manual changes when in auto mode */
4413                 if (!sd->ctrls[AUTOBRIGHT].val)
4414                         i2c_w(sd, OV7610_REG_BRT, val);
4415                 break;
4416         case SEN_OV7660:
4417                 write_i2c_regvals(sd, brit_7660[val],
4418                                 ARRAY_SIZE(brit_7660[0]));
4419                 break;
4420         case SEN_OV7670:
4421 /*win trace
4422  *              i2c_w_mask(sd, OV7670_R13_COM8, 0, OV7670_COM8_AEC); */
4423                 i2c_w(sd, OV7670_R55_BRIGHT, ov7670_abs_to_sm(val));
4424                 break;
4425         }
4426 }
4427
4428 static void setcontrast(struct gspca_dev *gspca_dev)
4429 {
4430         struct sd *sd = (struct sd *) gspca_dev;
4431         int val;
4432         static const struct ov_i2c_regvals contrast_7660[][31] = {
4433                 {{0x6c, 0xf0}, {0x6d, 0xf0}, {0x6e, 0xf8}, {0x6f, 0xa0},
4434                  {0x70, 0x58}, {0x71, 0x38}, {0x72, 0x30}, {0x73, 0x30},
4435                  {0x74, 0x28}, {0x75, 0x28}, {0x76, 0x24}, {0x77, 0x24},
4436                  {0x78, 0x22}, {0x79, 0x28}, {0x7a, 0x2a}, {0x7b, 0x34},
4437                  {0x7c, 0x0f}, {0x7d, 0x1e}, {0x7e, 0x3d}, {0x7f, 0x65},
4438                  {0x80, 0x70}, {0x81, 0x77}, {0x82, 0x7d}, {0x83, 0x83},
4439                  {0x84, 0x88}, {0x85, 0x8d}, {0x86, 0x96}, {0x87, 0x9f},
4440                  {0x88, 0xb0}, {0x89, 0xc4}, {0x8a, 0xd9}},
4441                 {{0x6c, 0xf0}, {0x6d, 0xf0}, {0x6e, 0xf8}, {0x6f, 0x94},
4442                  {0x70, 0x58}, {0x71, 0x40}, {0x72, 0x30}, {0x73, 0x30},
4443                  {0x74, 0x30}, {0x75, 0x30}, {0x76, 0x2c}, {0x77, 0x24},
4444                  {0x78, 0x22}, {0x79, 0x28}, {0x7a, 0x2a}, {0x7b, 0x31},
4445                  {0x7c, 0x0f}, {0x7d, 0x1e}, {0x7e, 0x3d}, {0x7f, 0x62},
4446                  {0x80, 0x6d}, {0x81, 0x75}, {0x82, 0x7b}, {0x83, 0x81},
4447                  {0x84, 0x87}, {0x85, 0x8d}, {0x86, 0x98}, {0x87, 0xa1},
4448                  {0x88, 0xb2}, {0x89, 0xc6}, {0x8a, 0xdb}},
4449                 {{0x6c, 0xf0}, {0x6d, 0xf0}, {0x6e, 0xf0}, {0x6f, 0x84},
4450                  {0x70, 0x58}, {0x71, 0x48}, {0x72, 0x40}, {0x73, 0x40},
4451                  {0x74, 0x28}, {0x75, 0x28}, {0x76, 0x28}, {0x77, 0x24},
4452                  {0x78, 0x26}, {0x79, 0x28}, {0x7a, 0x28}, {0x7b, 0x34},
4453                  {0x7c, 0x0f}, {0x7d, 0x1e}, {0x7e, 0x3c}, {0x7f, 0x5d},
4454                  {0x80, 0x68}, {0x81, 0x71}, {0x82, 0x79}, {0x83, 0x81},
4455                  {0x84, 0x86}, {0x85, 0x8b}, {0x86, 0x95}, {0x87, 0x9e},
4456                  {0x88, 0xb1}, {0x89, 0xc5}, {0x8a, 0xd9}},
4457                 {{0x6c, 0xf0}, {0x6d, 0xf0}, {0x6e, 0xf0}, {0x6f, 0x70},
4458                  {0x70, 0x58}, {0x71, 0x58}, {0x72, 0x48}, {0x73, 0x48},
4459                  {0x74, 0x38}, {0x75, 0x40}, {0x76, 0x34}, {0x77, 0x34},
4460                  {0x78, 0x2e}, {0x79, 0x28}, {0x7a, 0x24}, {0x7b, 0x22},
4461                  {0x7c, 0x0f}, {0x7d, 0x1e}, {0x7e, 0x3c}, {0x7f, 0x58},
4462                  {0x80, 0x63}, {0x81, 0x6e}, {0x82, 0x77}, {0x83, 0x80},
4463                  {0x84, 0x87}, {0x85, 0x8f}, {0x86, 0x9c}, {0x87, 0xa9},
4464                  {0x88, 0xc0}, {0x89, 0xd4}, {0x8a, 0xe6}},
4465                 {{0x6c, 0xa0}, {0x6d, 0xf0}, {0x6e, 0x90}, {0x6f, 0x80},
4466                  {0x70, 0x70}, {0x71, 0x80}, {0x72, 0x60}, {0x73, 0x60},
4467                  {0x74, 0x58}, {0x75, 0x60}, {0x76, 0x4c}, {0x77, 0x38},
4468                  {0x78, 0x38}, {0x79, 0x2a}, {0x7a, 0x20}, {0x7b, 0x0e},
4469                  {0x7c, 0x0a}, {0x7d, 0x14}, {0x7e, 0x26}, {0x7f, 0x46},
4470                  {0x80, 0x54}, {0x81, 0x64}, {0x82, 0x70}, {0x83, 0x7c},
4471                  {0x84, 0x87}, {0x85, 0x93}, {0x86, 0xa6}, {0x87, 0xb4},
4472                  {0x88, 0xd0}, {0x89, 0xe5}, {0x8a, 0xf5}},
4473                 {{0x6c, 0x60}, {0x6d, 0x80}, {0x6e, 0x60}, {0x6f, 0x80},
4474                  {0x70, 0x80}, {0x71, 0x80}, {0x72, 0x88}, {0x73, 0x30},
4475                  {0x74, 0x70}, {0x75, 0x68}, {0x76, 0x64}, {0x77, 0x50},
4476                  {0x78, 0x3c}, {0x79, 0x22}, {0x7a, 0x10}, {0x7b, 0x08},
4477                  {0x7c, 0x06}, {0x7d, 0x0e}, {0x7e, 0x1a}, {0x7f, 0x3a},
4478                  {0x80, 0x4a}, {0x81, 0x5a}, {0x82, 0x6b}, {0x83, 0x7b},
4479                  {0x84, 0x89}, {0x85, 0x96}, {0x86, 0xaf}, {0x87, 0xc3},
4480                  {0x88, 0xe1}, {0x89, 0xf2}, {0x8a, 0xfa}},
4481                 {{0x6c, 0x20}, {0x6d, 0x40}, {0x6e, 0x20}, {0x6f, 0x60},
4482                  {0x70, 0x88}, {0x71, 0xc8}, {0x72, 0xc0}, {0x73, 0xb8},
4483                  {0x74, 0xa8}, {0x75, 0xb8}, {0x76, 0x80}, {0x77, 0x5c},
4484                  {0x78, 0x26}, {0x79, 0x10}, {0x7a, 0x08}, {0x7b, 0x04},
4485                  {0x7c, 0x02}, {0x7d, 0x06}, {0x7e, 0x0a}, {0x7f, 0x22},
4486                  {0x80, 0x33}, {0x81, 0x4c}, {0x82, 0x64}, {0x83, 0x7b},
4487                  {0x84, 0x90}, {0x85, 0xa7}, {0x86, 0xc7}, {0x87, 0xde},
4488                  {0x88, 0xf1}, {0x89, 0xf9}, {0x8a, 0xfd}},
4489         };
4490
4491         val = sd->ctrls[CONTRAST].val;
4492         switch (sd->sensor) {
4493         case SEN_OV7610:
4494         case SEN_OV6620:
4495                 i2c_w(sd, OV7610_REG_CNT, val);
4496                 break;
4497         case SEN_OV6630:
4498         case SEN_OV66308AF:
4499                 i2c_w_mask(sd, OV7610_REG_CNT, val >> 4, 0x0f);
4500                 break;
4501         case SEN_OV8610: {
4502                 static const u8 ctab[] = {
4503                         0x03, 0x09, 0x0b, 0x0f, 0x53, 0x6f, 0x35, 0x7f
4504                 };
4505
4506                 /* Use Y gamma control instead. Bit 0 enables it. */
4507                 i2c_w(sd, 0x64, ctab[val >> 5]);
4508                 break;
4509             }
4510         case SEN_OV7620:
4511         case SEN_OV7620AE: {
4512                 static const u8 ctab[] = {
4513                         0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
4514                         0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
4515                 };
4516
4517                 /* Use Y gamma control instead. Bit 0 enables it. */
4518                 i2c_w(sd, 0x64, ctab[val >> 4]);
4519                 break;
4520             }
4521         case SEN_OV7660:
4522                 write_i2c_regvals(sd, contrast_7660[val],
4523                                         ARRAY_SIZE(contrast_7660[0]));
4524                 break;
4525         case SEN_OV7670:
4526                 /* check that this isn't just the same as ov7610 */
4527                 i2c_w(sd, OV7670_R56_CONTRAS, val >> 1);
4528                 break;
4529         }
4530 }
4531
4532 static void setcolors(struct gspca_dev *gspca_dev)
4533 {
4534         struct sd *sd = (struct sd *) gspca_dev;
4535         int val;
4536         static const struct ov_i2c_regvals colors_7660[][6] = {
4537                 {{0x4f, 0x28}, {0x50, 0x2a}, {0x51, 0x02}, {0x52, 0x0a},
4538                  {0x53, 0x19}, {0x54, 0x23}},
4539                 {{0x4f, 0x47}, {0x50, 0x4a}, {0x51, 0x03}, {0x52, 0x11},
4540                  {0x53, 0x2c}, {0x54, 0x3e}},
4541                 {{0x4f, 0x66}, {0x50, 0x6b}, {0x51, 0x05}, {0x52, 0x19},
4542                  {0x53, 0x40}, {0x54, 0x59}},
4543                 {{0x4f, 0x84}, {0x50, 0x8b}, {0x51, 0x06}, {0x52, 0x20},
4544                  {0x53, 0x53}, {0x54, 0x73}},
4545                 {{0x4f, 0xa3}, {0x50, 0xab}, {0x51, 0x08}, {0x52, 0x28},
4546                  {0x53, 0x66}, {0x54, 0x8e}},
4547         };
4548
4549         val = sd->ctrls[COLORS].val;
4550         switch (sd->sensor) {
4551         case SEN_OV8610:
4552         case SEN_OV7610:
4553         case SEN_OV76BE:
4554         case SEN_OV6620:
4555         case SEN_OV6630:
4556         case SEN_OV66308AF:
4557                 i2c_w(sd, OV7610_REG_SAT, val);
4558                 break;
4559         case SEN_OV7620:
4560         case SEN_OV7620AE:
4561                 /* Use UV gamma control instead. Bits 0 & 7 are reserved. */
4562 /*              rc = ov_i2c_write(sd->dev, 0x62, (val >> 9) & 0x7e);
4563                 if (rc < 0)
4564                         goto out; */
4565                 i2c_w(sd, OV7610_REG_SAT, val);
4566                 break;
4567         case SEN_OV7640:
4568         case SEN_OV7648:
4569                 i2c_w(sd, OV7610_REG_SAT, val & 0xf0);
4570                 break;
4571         case SEN_OV7660:
4572                 write_i2c_regvals(sd, colors_7660[val],
4573                                         ARRAY_SIZE(colors_7660[0]));
4574                 break;
4575         case SEN_OV7670:
4576                 /* supported later once I work out how to do it
4577                  * transparently fail now! */
4578                 /* set REG_COM13 values for UV sat auto mode */
4579                 break;
4580         }
4581 }
4582
4583 static void setautobright(struct gspca_dev *gspca_dev)
4584 {
4585         struct sd *sd = (struct sd *) gspca_dev;
4586
4587         i2c_w_mask(sd, 0x2d, sd->ctrls[AUTOBRIGHT].val ? 0x10 : 0x00, 0x10);
4588 }
4589
4590 static void setfreq_i(struct sd *sd)
4591 {
4592         if (sd->sensor == SEN_OV7660
4593          || sd->sensor == SEN_OV7670) {
4594                 switch (sd->ctrls[FREQ].val) {
4595                 case 0: /* Banding filter disabled */
4596                         i2c_w_mask(sd, OV7670_R13_COM8, 0, OV7670_COM8_BFILT);
4597                         break;
4598                 case 1: /* 50 hz */
4599                         i2c_w_mask(sd, OV7670_R13_COM8, OV7670_COM8_BFILT,
4600                                    OV7670_COM8_BFILT);
4601                         i2c_w_mask(sd, OV7670_R3B_COM11, 0x08, 0x18);
4602                         break;
4603                 case 2: /* 60 hz */
4604                         i2c_w_mask(sd, OV7670_R13_COM8, OV7670_COM8_BFILT,
4605                                    OV7670_COM8_BFILT);
4606                         i2c_w_mask(sd, OV7670_R3B_COM11, 0x00, 0x18);
4607                         break;
4608                 case 3: /* Auto hz - ov7670 only */
4609                         i2c_w_mask(sd, OV7670_R13_COM8, OV7670_COM8_BFILT,
4610                                    OV7670_COM8_BFILT);
4611                         i2c_w_mask(sd, OV7670_R3B_COM11, OV7670_COM11_HZAUTO,
4612                                    0x18);
4613                         break;
4614                 }
4615         } else {
4616                 switch (sd->ctrls[FREQ].val) {
4617                 case 0: /* Banding filter disabled */
4618                         i2c_w_mask(sd, 0x2d, 0x00, 0x04);
4619                         i2c_w_mask(sd, 0x2a, 0x00, 0x80);
4620                         break;
4621                 case 1: /* 50 hz (filter on and framerate adj) */
4622                         i2c_w_mask(sd, 0x2d, 0x04, 0x04);
4623                         i2c_w_mask(sd, 0x2a, 0x80, 0x80);
4624                         /* 20 fps -> 16.667 fps */
4625                         if (sd->sensor == SEN_OV6620 ||
4626                             sd->sensor == SEN_OV6630 ||
4627                             sd->sensor == SEN_OV66308AF)
4628                                 i2c_w(sd, 0x2b, 0x5e);
4629                         else
4630                                 i2c_w(sd, 0x2b, 0xac);
4631                         break;
4632                 case 2: /* 60 hz (filter on, ...) */
4633                         i2c_w_mask(sd, 0x2d, 0x04, 0x04);
4634                         if (sd->sensor == SEN_OV6620 ||
4635                             sd->sensor == SEN_OV6630 ||
4636                             sd->sensor == SEN_OV66308AF) {
4637                                 /* 20 fps -> 15 fps */
4638                                 i2c_w_mask(sd, 0x2a, 0x80, 0x80);
4639                                 i2c_w(sd, 0x2b, 0xa8);
4640                         } else {
4641                                 /* no framerate adj. */
4642                                 i2c_w_mask(sd, 0x2a, 0x00, 0x80);
4643                         }
4644                         break;
4645                 }
4646         }
4647 }
4648 static void setfreq(struct gspca_dev *gspca_dev)
4649 {
4650         struct sd *sd = (struct sd *) gspca_dev;
4651
4652         setfreq_i(sd);
4653
4654         /* Ugly but necessary */
4655         if (sd->bridge == BRIDGE_W9968CF)
4656                 w9968cf_set_crop_window(sd);
4657 }
4658
4659 static int sd_querymenu(struct gspca_dev *gspca_dev,
4660                         struct v4l2_querymenu *menu)
4661 {
4662         struct sd *sd = (struct sd *) gspca_dev;
4663
4664         switch (menu->id) {
4665         case V4L2_CID_POWER_LINE_FREQUENCY:
4666                 switch (menu->index) {
4667                 case 0:         /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
4668                         strcpy((char *) menu->name, "NoFliker");
4669                         return 0;
4670                 case 1:         /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
4671                         strcpy((char *) menu->name, "50 Hz");
4672                         return 0;
4673                 case 2:         /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
4674                         strcpy((char *) menu->name, "60 Hz");
4675                         return 0;
4676                 case 3:
4677                         if (sd->sensor != SEN_OV7670)
4678                                 return -EINVAL;
4679
4680                         strcpy((char *) menu->name, "Automatic");
4681                         return 0;
4682                 }
4683                 break;
4684         }
4685         return -EINVAL;
4686 }
4687
4688 static int sd_get_jcomp(struct gspca_dev *gspca_dev,
4689                         struct v4l2_jpegcompression *jcomp)
4690 {
4691         struct sd *sd = (struct sd *) gspca_dev;
4692
4693         if (sd->bridge != BRIDGE_W9968CF)
4694                 return -EINVAL;
4695
4696         memset(jcomp, 0, sizeof *jcomp);
4697         jcomp->quality = sd->quality;
4698         jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT |
4699                               V4L2_JPEG_MARKER_DRI;
4700         return 0;
4701 }
4702
4703 static int sd_set_jcomp(struct gspca_dev *gspca_dev,
4704                         struct v4l2_jpegcompression *jcomp)
4705 {
4706         struct sd *sd = (struct sd *) gspca_dev;
4707
4708         if (sd->bridge != BRIDGE_W9968CF)
4709                 return -EINVAL;
4710
4711         if (gspca_dev->streaming)
4712                 return -EBUSY;
4713
4714         if (jcomp->quality < QUALITY_MIN)
4715                 sd->quality = QUALITY_MIN;
4716         else if (jcomp->quality > QUALITY_MAX)
4717                 sd->quality = QUALITY_MAX;
4718         else
4719                 sd->quality = jcomp->quality;
4720
4721         /* Return resulting jcomp params to app */
4722         sd_get_jcomp(gspca_dev, jcomp);
4723
4724         return 0;
4725 }
4726
4727 /* sub-driver description */
4728 static const struct sd_desc sd_desc = {
4729         .name = MODULE_NAME,
4730         .ctrls = sd_ctrls,
4731         .nctrls = ARRAY_SIZE(sd_ctrls),
4732         .config = sd_config,
4733         .init = sd_init,
4734         .start = sd_start,
4735         .stopN = sd_stopN,
4736         .stop0 = sd_stop0,
4737         .pkt_scan = sd_pkt_scan,
4738         .dq_callback = sd_reset_snapshot,
4739         .querymenu = sd_querymenu,
4740         .get_jcomp = sd_get_jcomp,
4741         .set_jcomp = sd_set_jcomp,
4742 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
4743         .other_input = 1,
4744 #endif
4745 };
4746
4747 /* -- module initialisation -- */
4748 static const struct usb_device_id device_table[] = {
4749         {USB_DEVICE(0x041e, 0x4003), .driver_info = BRIDGE_W9968CF },
4750         {USB_DEVICE(0x041e, 0x4052), .driver_info = BRIDGE_OV519 },
4751         {USB_DEVICE(0x041e, 0x405f), .driver_info = BRIDGE_OV519 },
4752         {USB_DEVICE(0x041e, 0x4060), .driver_info = BRIDGE_OV519 },
4753         {USB_DEVICE(0x041e, 0x4061), .driver_info = BRIDGE_OV519 },
4754         {USB_DEVICE(0x041e, 0x4064),
4755                 .driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
4756         {USB_DEVICE(0x041e, 0x4067), .driver_info = BRIDGE_OV519 },
4757         {USB_DEVICE(0x041e, 0x4068),
4758                 .driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
4759         {USB_DEVICE(0x045e, 0x028c), .driver_info = BRIDGE_OV519 },
4760         {USB_DEVICE(0x054c, 0x0154), .driver_info = BRIDGE_OV519 },
4761         {USB_DEVICE(0x054c, 0x0155),
4762                 .driver_info = BRIDGE_OV519 | BRIDGE_INVERT_LED },
4763         {USB_DEVICE(0x05a9, 0x0511), .driver_info = BRIDGE_OV511 },
4764         {USB_DEVICE(0x05a9, 0x0518), .driver_info = BRIDGE_OV518 },
4765         {USB_DEVICE(0x05a9, 0x0519), .driver_info = BRIDGE_OV519 },
4766         {USB_DEVICE(0x05a9, 0x0530), .driver_info = BRIDGE_OV519 },
4767         {USB_DEVICE(0x05a9, 0x2800), .driver_info = BRIDGE_OVFX2 },
4768         {USB_DEVICE(0x05a9, 0x4519), .driver_info = BRIDGE_OV519 },
4769         {USB_DEVICE(0x05a9, 0x8519), .driver_info = BRIDGE_OV519 },
4770         {USB_DEVICE(0x05a9, 0xa511), .driver_info = BRIDGE_OV511PLUS },
4771         {USB_DEVICE(0x05a9, 0xa518), .driver_info = BRIDGE_OV518PLUS },
4772         {USB_DEVICE(0x0813, 0x0002), .driver_info = BRIDGE_OV511PLUS },
4773         {USB_DEVICE(0x0b62, 0x0059), .driver_info = BRIDGE_OVFX2 },
4774         {USB_DEVICE(0x0e96, 0xc001), .driver_info = BRIDGE_OVFX2 },
4775         {USB_DEVICE(0x1046, 0x9967), .driver_info = BRIDGE_W9968CF },
4776         {USB_DEVICE(0x8020, 0xef04), .driver_info = BRIDGE_OVFX2 },
4777         {}
4778 };
4779
4780 MODULE_DEVICE_TABLE(usb, device_table);
4781
4782 /* -- device connect -- */
4783 static int sd_probe(struct usb_interface *intf,
4784                         const struct usb_device_id *id)
4785 {
4786         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
4787                                 THIS_MODULE);
4788 }
4789
4790 static struct usb_driver sd_driver = {
4791         .name = MODULE_NAME,
4792         .id_table = device_table,
4793         .probe = sd_probe,
4794         .disconnect = gspca_disconnect,
4795 #ifdef CONFIG_PM
4796         .suspend = gspca_suspend,
4797         .resume = gspca_resume,
4798 #endif
4799 };
4800
4801 /* -- module insert / remove -- */
4802 static int __init sd_mod_init(void)
4803 {
4804         return usb_register(&sd_driver);
4805 }
4806 static void __exit sd_mod_exit(void)
4807 {
4808         usb_deregister(&sd_driver);
4809 }
4810
4811 module_init(sd_mod_init);
4812 module_exit(sd_mod_exit);
4813
4814 module_param(frame_rate, int, 0644);
4815 MODULE_PARM_DESC(frame_rate, "Frame rate (5, 10, 15, 20 or 30 fps)");