drivers/media/video/gspca/ov534.c

   1 /*
   2  * ov534-ov772x gspca driver
   3  *
   4  * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
   5  * Copyright (C) 2008 Jim Paris <jim@jtan.com>
   6  * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
   7  *
   8  * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
   9  * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
  10  * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
  11  *
  12  * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr
  13  * PS3 Eye camera, brightness, contrast, hue, AWB control added
  14  *      by Max Thrun <bear24rw@gmail.com>
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  29  */
  30
  31 #define MODULE_NAME "ov534"
  32
  33 #include "gspca.h"
  34
  35 #define OV534_REG_ADDRESS       0xf1    /* sensor address */
  36 #define OV534_REG_SUBADDR       0xf2
  37 #define OV534_REG_WRITE         0xf3
  38 #define OV534_REG_READ          0xf4
  39 #define OV534_REG_OPERATION     0xf5
  40 #define OV534_REG_STATUS        0xf6
  41
  42 #define OV534_OP_WRITE_3        0x37
  43 #define OV534_OP_WRITE_2        0x33
  44 #define OV534_OP_READ_2         0xf9
  45
  46 #define CTRL_TIMEOUT 500
  47
  48 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
  49 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
  50 MODULE_LICENSE("GPL");
  51
  52 /* specific webcam descriptor */
  53 struct sd {
  54         struct gspca_dev gspca_dev;     /* !! must be the first item */
  55         __u32 last_pts;
  56         u16 last_fid;
  57         u8 frame_rate;
  58
  59         u8 brightness;
  60         u8 contrast;
  61         u8 gain;
  62         u8 exposure;
  63         u8 hue;
  64         u8 autogain;
  65         u8 awb;
  66         s8 sharpness;
  67         u8 hflip;
  68         u8 vflip;
  69
  70 };
  71
  72 /* V4L2 controls supported by the driver */
  73 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
  74 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
  75 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
  76 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
  77 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
  78 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
  79 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
  80 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
  81 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
  82 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
  83 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
  84 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
  85 static int sd_sethue(struct gspca_dev *gspca_dev, __s32 val);
  86 static int sd_gethue(struct gspca_dev *gspca_dev, __s32 *val);
  87 static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val);
  88 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val);
  89 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  90 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  91 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  92 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  93
  94 static const struct ctrl sd_ctrls[] = {
  95     {                                                   /* 0 */
  96         {
  97                 .id      = V4L2_CID_BRIGHTNESS,
  98                 .type    = V4L2_CTRL_TYPE_INTEGER,
  99                 .name    = "Brightness",
 100                 .minimum = 0,
 101                 .maximum = 255,
 102                 .step    = 1,
 103 #define BRIGHTNESS_DEF 20
 104                 .default_value = BRIGHTNESS_DEF,
 105         },
 106         .set = sd_setbrightness,
 107         .get = sd_getbrightness,
 108     },
 109     {                                                   /* 1 */
 110         {
 111                 .id      = V4L2_CID_CONTRAST,
 112                 .type    = V4L2_CTRL_TYPE_INTEGER,
 113                 .name    = "Contrast",
 114                 .minimum = 0,
 115                 .maximum = 255,
 116                 .step    = 1,
 117 #define CONTRAST_DEF 37
 118                 .default_value = CONTRAST_DEF,
 119         },
 120         .set = sd_setcontrast,
 121         .get = sd_getcontrast,
 122     },
 123     {                                                   /* 2 */
 124         {
 125             .id      = V4L2_CID_GAIN,
 126             .type    = V4L2_CTRL_TYPE_INTEGER,
 127             .name    = "Main Gain",
 128             .minimum = 0,
 129             .maximum = 63,
 130             .step    = 1,
 131 #define GAIN_DEF 20
 132             .default_value = GAIN_DEF,
 133         },
 134         .set = sd_setgain,
 135         .get = sd_getgain,
 136     },
 137     {                                                   /* 3 */
 138         {
 139             .id      = V4L2_CID_EXPOSURE,
 140             .type    = V4L2_CTRL_TYPE_INTEGER,
 141             .name    = "Exposure",
 142             .minimum = 0,
 143             .maximum = 255,
 144             .step    = 1,
 145 #define EXPO_DEF 120
 146             .default_value = EXPO_DEF,
 147         },
 148         .set = sd_setexposure,
 149         .get = sd_getexposure,
 150     },
 151     {                                                   /* 4 */
 152         {
 153                 .id      = V4L2_CID_HUE,
 154                 .type    = V4L2_CTRL_TYPE_INTEGER,
 155                 .name    = "Hue",
 156                 .minimum = 0,
 157                 .maximum = 255,
 158                 .step    = 1,
 159 #define HUE_DEF 143
 160                 .default_value = HUE_DEF,
 161         },
 162         .set = sd_sethue,
 163         .get = sd_gethue,
 164     },
 165     {                                                   /* 5 */
 166         {
 167             .id      = V4L2_CID_AUTOGAIN,
 168             .type    = V4L2_CTRL_TYPE_BOOLEAN,
 169             .name    = "Autogain",
 170             .minimum = 0,
 171             .maximum = 1,
 172             .step    = 1,
 173 #define AUTOGAIN_DEF 0
 174             .default_value = AUTOGAIN_DEF,
 175         },
 176         .set = sd_setautogain,
 177         .get = sd_getautogain,
 178     },
 179 #define AWB_IDX 6
 180     {                                                   /* 6 */
 181         {
 182                 .id      = V4L2_CID_AUTO_WHITE_BALANCE,
 183                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 184                 .name    = "Auto White Balance",
 185                 .minimum = 0,
 186                 .maximum = 1,
 187                 .step    = 1,
 188 #define AWB_DEF 0
 189                 .default_value = AWB_DEF,
 190         },
 191         .set = sd_setawb,
 192         .get = sd_getawb,
 193     },
 194     {                                                   /* 7 */
 195         {
 196             .id      = V4L2_CID_SHARPNESS,
 197             .type    = V4L2_CTRL_TYPE_INTEGER,
 198             .name    = "Sharpness",
 199             .minimum = 0,
 200             .maximum = 63,
 201             .step    = 1,
 202 #define SHARPNESS_DEF 0
 203             .default_value = SHARPNESS_DEF,
 204         },
 205         .set = sd_setsharpness,
 206         .get = sd_getsharpness,
 207     },
 208     {                                                   /* 8 */
 209         {
 210             .id      = V4L2_CID_HFLIP,
 211             .type    = V4L2_CTRL_TYPE_BOOLEAN,
 212             .name    = "HFlip",
 213             .minimum = 0,
 214             .maximum = 1,
 215             .step    = 1,
 216 #define HFLIP_DEF 0
 217             .default_value = HFLIP_DEF,
 218         },
 219         .set = sd_sethflip,
 220         .get = sd_gethflip,
 221     },
 222     {                                                   /* 9 */
 223         {
 224             .id      = V4L2_CID_VFLIP,
 225             .type    = V4L2_CTRL_TYPE_BOOLEAN,
 226             .name    = "VFlip",
 227             .minimum = 0,
 228             .maximum = 1,
 229             .step    = 1,
 230 #define VFLIP_DEF 0
 231             .default_value = VFLIP_DEF,
 232         },
 233         .set = sd_setvflip,
 234         .get = sd_getvflip,
 235     },
 236 };
 237
 238 static const struct v4l2_pix_format ov772x_mode[] = {
 239         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 240          .bytesperline = 320 * 2,
 241          .sizeimage = 320 * 240 * 2,
 242          .colorspace = V4L2_COLORSPACE_SRGB,
 243          .priv = 1},
 244         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 245          .bytesperline = 640 * 2,
 246          .sizeimage = 640 * 480 * 2,
 247          .colorspace = V4L2_COLORSPACE_SRGB,
 248          .priv = 0},
 249 };
 250
 251 static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30};
 252 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 253
 254 static const struct framerates ov772x_framerates[] = {
 255         { /* 320x240 */
 256                 .rates = qvga_rates,
 257                 .nrates = ARRAY_SIZE(qvga_rates),
 258         },
 259         { /* 640x480 */
 260                 .rates = vga_rates,
 261                 .nrates = ARRAY_SIZE(vga_rates),
 262         },
 263 };
 264
 265 static const u8 bridge_init[][2] = {
 266         { 0xc2, 0x0c },
 267         { 0x88, 0xf8 },
 268         { 0xc3, 0x69 },
 269         { 0x89, 0xff },
 270         { 0x76, 0x03 },
 271         { 0x92, 0x01 },
 272         { 0x93, 0x18 },
 273         { 0x94, 0x10 },
 274         { 0x95, 0x10 },
 275         { 0xe2, 0x00 },
 276         { 0xe7, 0x3e },
 277
 278         { 0x96, 0x00 },
 279
 280         { 0x97, 0x20 },
 281         { 0x97, 0x20 },
 282         { 0x97, 0x20 },
 283         { 0x97, 0x0a },
 284         { 0x97, 0x3f },
 285         { 0x97, 0x4a },
 286         { 0x97, 0x20 },
 287         { 0x97, 0x15 },
 288         { 0x97, 0x0b },
 289
 290         { 0x8e, 0x40 },
 291         { 0x1f, 0x81 },
 292         { 0x34, 0x05 },
 293         { 0xe3, 0x04 },
 294         { 0x88, 0x00 },
 295         { 0x89, 0x00 },
 296         { 0x76, 0x00 },
 297         { 0xe7, 0x2e },
 298         { 0x31, 0xf9 },
 299         { 0x25, 0x42 },
 300         { 0x21, 0xf0 },
 301
 302         { 0x1c, 0x00 },
 303         { 0x1d, 0x40 },
 304         { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
 305         { 0x1d, 0x00 }, /* payload size */
 306
 307         { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
 308         { 0x1d, 0x58 }, /* frame size */
 309         { 0x1d, 0x00 }, /* frame size */
 310
 311         { 0x1c, 0x0a },
 312         { 0x1d, 0x08 }, /* turn on UVC header */
 313         { 0x1d, 0x0e }, /* .. */
 314
 315         { 0x8d, 0x1c },
 316         { 0x8e, 0x80 },
 317         { 0xe5, 0x04 },
 318
 319         { 0xc0, 0x50 },
 320         { 0xc1, 0x3c },
 321         { 0xc2, 0x0c },
 322 };
 323 static const u8 sensor_init[][2] = {
 324         { 0x12, 0x80 },
 325         { 0x11, 0x01 },
 326 /*fixme: better have a delay?*/
 327         { 0x11, 0x01 },
 328         { 0x11, 0x01 },
 329         { 0x11, 0x01 },
 330         { 0x11, 0x01 },
 331         { 0x11, 0x01 },
 332         { 0x11, 0x01 },
 333         { 0x11, 0x01 },
 334         { 0x11, 0x01 },
 335         { 0x11, 0x01 },
 336         { 0x11, 0x01 },
 337
 338         { 0x3d, 0x03 },
 339         { 0x17, 0x26 },
 340         { 0x18, 0xa0 },
 341         { 0x19, 0x07 },
 342         { 0x1a, 0xf0 },
 343         { 0x32, 0x00 },
 344         { 0x29, 0xa0 },
 345         { 0x2c, 0xf0 },
 346         { 0x65, 0x20 },
 347         { 0x11, 0x01 },
 348         { 0x42, 0x7f },
 349         { 0x63, 0xaa },         /* AWB - was e0 */
 350         { 0x64, 0xff },
 351         { 0x66, 0x00 },
 352         { 0x13, 0xf0 },         /* com8 */
 353         { 0x0d, 0x41 },
 354         { 0x0f, 0xc5 },
 355         { 0x14, 0x11 },
 356
 357         { 0x22, 0x7f },
 358         { 0x23, 0x03 },
 359         { 0x24, 0x40 },
 360         { 0x25, 0x30 },
 361         { 0x26, 0xa1 },
 362         { 0x2a, 0x00 },
 363         { 0x2b, 0x00 },
 364         { 0x6b, 0xaa },
 365         { 0x13, 0xff },         /* AWB */
 366
 367         { 0x90, 0x05 },
 368         { 0x91, 0x01 },
 369         { 0x92, 0x03 },
 370         { 0x93, 0x00 },
 371         { 0x94, 0x60 },
 372         { 0x95, 0x3c },
 373         { 0x96, 0x24 },
 374         { 0x97, 0x1e },
 375         { 0x98, 0x62 },
 376         { 0x99, 0x80 },
 377         { 0x9a, 0x1e },
 378         { 0x9b, 0x08 },
 379         { 0x9c, 0x20 },
 380         { 0x9e, 0x81 },
 381
 382         { 0xa6, 0x04 },
 383         { 0x7e, 0x0c },
 384         { 0x7f, 0x16 },
 385         { 0x80, 0x2a },
 386         { 0x81, 0x4e },
 387         { 0x82, 0x61 },
 388         { 0x83, 0x6f },
 389         { 0x84, 0x7b },
 390         { 0x85, 0x86 },
 391         { 0x86, 0x8e },
 392         { 0x87, 0x97 },
 393         { 0x88, 0xa4 },
 394         { 0x89, 0xaf },
 395         { 0x8a, 0xc5 },
 396         { 0x8b, 0xd7 },
 397         { 0x8c, 0xe8 },
 398         { 0x8d, 0x20 },
 399
 400         { 0x0c, 0x90 },
 401
 402         { 0x2b, 0x00 },
 403         { 0x22, 0x7f },
 404         { 0x23, 0x03 },
 405         { 0x11, 0x01 },
 406         { 0x0c, 0xd0 },
 407         { 0x64, 0xff },
 408         { 0x0d, 0x41 },
 409
 410         { 0x14, 0x41 },
 411         { 0x0e, 0xcd },
 412         { 0xac, 0xbf },
 413         { 0x8e, 0x00 },         /* De-noise threshold */
 414         { 0x0c, 0xd0 }
 415 };
 416 static const u8 bridge_start_vga[][2] = {
 417         {0x1c, 0x00},
 418         {0x1d, 0x40},
 419         {0x1d, 0x02},
 420         {0x1d, 0x00},
 421         {0x1d, 0x02},
 422         {0x1d, 0x58},
 423         {0x1d, 0x00},
 424         {0xc0, 0x50},
 425         {0xc1, 0x3c},
 426 };
 427 static const u8 sensor_start_vga[][2] = {
 428         {0x12, 0x00},
 429         {0x17, 0x26},
 430         {0x18, 0xa0},
 431         {0x19, 0x07},
 432         {0x1a, 0xf0},
 433         {0x29, 0xa0},
 434         {0x2c, 0xf0},
 435         {0x65, 0x20},
 436 };
 437 static const u8 bridge_start_qvga[][2] = {
 438         {0x1c, 0x00},
 439         {0x1d, 0x40},
 440         {0x1d, 0x02},
 441         {0x1d, 0x00},
 442         {0x1d, 0x01},
 443         {0x1d, 0x4b},
 444         {0x1d, 0x00},
 445         {0xc0, 0x28},
 446         {0xc1, 0x1e},
 447 };
 448 static const u8 sensor_start_qvga[][2] = {
 449         {0x12, 0x40},
 450         {0x17, 0x3f},
 451         {0x18, 0x50},
 452         {0x19, 0x03},
 453         {0x1a, 0x78},
 454         {0x29, 0x50},
 455         {0x2c, 0x78},
 456         {0x65, 0x2f},
 457 };
 458
 459 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 460 {
 461         struct usb_device *udev = gspca_dev->dev;
 462         int ret;
 463
 464         PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", reg, val);
 465         gspca_dev->usb_buf[0] = val;
 466         ret = usb_control_msg(udev,
 467                               usb_sndctrlpipe(udev, 0),
 468                               0x01,
 469                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 470                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 471         if (ret < 0)
 472                 PDEBUG(D_ERR, "write failed");
 473 }
 474
 475 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 476 {
 477         struct usb_device *udev = gspca_dev->dev;
 478         int ret;
 479
 480         ret = usb_control_msg(udev,
 481                               usb_rcvctrlpipe(udev, 0),
 482                               0x01,
 483                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 484                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 485         PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, gspca_dev->usb_buf[0]);
 486         if (ret < 0)
 487                 PDEBUG(D_ERR, "read failed");
 488         return gspca_dev->usb_buf[0];
 489 }
 490
 491 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 492  * (direction and output)? */
 493 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 494 {
 495         u8 data;
 496
 497         PDEBUG(D_CONF, "led status: %d", status);
 498
 499         data = ov534_reg_read(gspca_dev, 0x21);
 500         data |= 0x80;
 501         ov534_reg_write(gspca_dev, 0x21, data);
 502
 503         data = ov534_reg_read(gspca_dev, 0x23);
 504         if (status)
 505                 data |= 0x80;
 506         else
 507                 data &= ~0x80;
 508
 509         ov534_reg_write(gspca_dev, 0x23, data);
 510
 511         if (!status) {
 512                 data = ov534_reg_read(gspca_dev, 0x21);
 513                 data &= ~0x80;
 514                 ov534_reg_write(gspca_dev, 0x21, data);
 515         }
 516 }
 517
 518 static int sccb_check_status(struct gspca_dev *gspca_dev)
 519 {
 520         u8 data;
 521         int i;
 522
 523         for (i = 0; i < 5; i++) {
 524                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 525
 526                 switch (data) {
 527                 case 0x00:
 528                         return 1;
 529                 case 0x04:
 530                         return 0;
 531                 case 0x03:
 532                         break;
 533                 default:
 534                         PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
 535                                data, i + 1);
 536                 }
 537         }
 538         return 0;
 539 }
 540
 541 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 542 {
 543         PDEBUG(D_USBO, "reg: 0x%02x, val: 0x%02x", reg, val);
 544         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 545         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 546         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 547
 548         if (!sccb_check_status(gspca_dev))
 549                 PDEBUG(D_ERR, "sccb_reg_write failed");
 550 }
 551
 552 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 553 {
 554         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 555         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 556         if (!sccb_check_status(gspca_dev))
 557                 PDEBUG(D_ERR, "sccb_reg_read failed 1");
 558
 559         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 560         if (!sccb_check_status(gspca_dev))
 561                 PDEBUG(D_ERR, "sccb_reg_read failed 2");
 562
 563         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 564 }
 565
 566 /* output a bridge sequence (reg - val) */
 567 static void reg_w_array(struct gspca_dev *gspca_dev,
 568                         const u8 (*data)[2], int len)
 569 {
 570         while (--len >= 0) {
 571                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 572                 data++;
 573         }
 574 }
 575
 576 /* output a sensor sequence (reg - val) */
 577 static void sccb_w_array(struct gspca_dev *gspca_dev,
 578                         const u8 (*data)[2], int len)
 579 {
 580         while (--len >= 0) {
 581                 if ((*data)[0] != 0xff) {
 582                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 583                 } else {
 584                         sccb_reg_read(gspca_dev, (*data)[1]);
 585                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 586                 }
 587                 data++;
 588         }
 589 }
 590
 591 /* ov772x specific controls */
 592 static void set_frame_rate(struct gspca_dev *gspca_dev)
 593 {
 594         struct sd *sd = (struct sd *) gspca_dev;
 595         int i;
 596         struct rate_s {
 597                 u8 fps;
 598                 u8 r11;
 599                 u8 r0d;
 600                 u8 re5;
 601         };
 602         const struct rate_s *r;
 603         static const struct rate_s rate_0[] = { /* 640x480 */
 604                 {60, 0x01, 0xc1, 0x04},
 605                 {50, 0x01, 0x41, 0x02},
 606                 {40, 0x02, 0xc1, 0x04},
 607                 {30, 0x04, 0x81, 0x02},
 608                 {15, 0x03, 0x41, 0x04},
 609         };
 610         static const struct rate_s rate_1[] = { /* 320x240 */
 611                 {125, 0x02, 0x81, 0x02},
 612                 {100, 0x02, 0xc1, 0x04},
 613                 {75, 0x03, 0xc1, 0x04},
 614                 {60, 0x04, 0xc1, 0x04},
 615                 {50, 0x02, 0x41, 0x04},
 616                 {40, 0x03, 0x41, 0x04},
 617                 {30, 0x04, 0x41, 0x04},
 618         };
 619
 620         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 621                 r = rate_0;
 622                 i = ARRAY_SIZE(rate_0);
 623         } else {
 624                 r = rate_1;
 625                 i = ARRAY_SIZE(rate_1);
 626         }
 627         while (--i > 0) {
 628                 if (sd->frame_rate >= r->fps)
 629                         break;
 630                 r++;
 631         }
 632
 633         sccb_reg_write(gspca_dev, 0x11, r->r11);
 634         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 635         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 636
 637         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 638 }
 639
 640 static void setbrightness(struct gspca_dev *gspca_dev)
 641 {
 642         struct sd *sd = (struct sd *) gspca_dev;
 643
 644         sccb_reg_write(gspca_dev, 0x9B, sd->brightness);
 645 }
 646
 647 static void setcontrast(struct gspca_dev *gspca_dev)
 648 {
 649         struct sd *sd = (struct sd *) gspca_dev;
 650
 651         sccb_reg_write(gspca_dev, 0x9C, sd->contrast);
 652 }
 653
 654 static void setgain(struct gspca_dev *gspca_dev)
 655 {
 656         struct sd *sd = (struct sd *) gspca_dev;
 657         u8 val;
 658
 659         val = sd->gain;
 660         switch (val & 0x30) {
 661         case 0x00:
 662                 val &= 0x0f;
 663                 break;
 664         case 0x10:
 665                 val &= 0x0f;
 666                 val |= 0x30;
 667                 break;
 668         case 0x20:
 669                 val &= 0x0f;
 670                 val |= 0x70;
 671                 break;
 672         default:
 673 /*      case 0x30: */
 674                 val &= 0x0f;
 675                 val |= 0xf0;
 676                 break;
 677         }
 678         sccb_reg_write(gspca_dev, 0x00, val);
 679 }
 680
 681 static void setexposure(struct gspca_dev *gspca_dev)
 682 {
 683         struct sd *sd = (struct sd *) gspca_dev;
 684         u8 val;
 685
 686         val = sd->exposure;
 687         sccb_reg_write(gspca_dev, 0x08, val >> 7);
 688         sccb_reg_write(gspca_dev, 0x10, val << 1);
 689 }
 690
 691 static void sethue(struct gspca_dev *gspca_dev)
 692 {
 693         struct sd *sd = (struct sd *) gspca_dev;
 694
 695         sccb_reg_write(gspca_dev, 0x01, sd->hue);
 696 }
 697
 698 static void setautogain(struct gspca_dev *gspca_dev)
 699 {
 700         struct sd *sd = (struct sd *) gspca_dev;
 701
 702         if (sd->autogain) {
 703                 sccb_reg_write(gspca_dev, 0x13, 0xf7); /* AGC,AEC,AWB ON */
 704                 sccb_reg_write(gspca_dev, 0x64,
 705                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
 706         } else {
 707                 sccb_reg_write(gspca_dev, 0x13, 0xf0); /* AGC,AEC,AWB OFF */
 708                 sccb_reg_write(gspca_dev, 0x64,
 709                                 sccb_reg_read(gspca_dev, 0x64) & 0xfc);
 710         }
 711 }
 712
 713 static void setawb(struct gspca_dev *gspca_dev)
 714 {
 715         struct sd *sd = (struct sd *) gspca_dev;
 716
 717         if (sd->awb)
 718                 sccb_reg_write(gspca_dev, 0x63, 0xe0);  /* AWB on */
 719         else
 720                 sccb_reg_write(gspca_dev, 0x63, 0xaa);  /* AWB off */
 721 }
 722
 723 static void setsharpness(struct gspca_dev *gspca_dev)
 724 {
 725         struct sd *sd = (struct sd *) gspca_dev;
 726         u8 val;
 727
 728         val = sd->sharpness;
 729         sccb_reg_write(gspca_dev, 0x91, val);   /* vga noise */
 730         sccb_reg_write(gspca_dev, 0x8e, val);   /* qvga noise */
 731 }
 732
 733 static void sethflip(struct gspca_dev *gspca_dev)
 734 {
 735         struct sd *sd = (struct sd *) gspca_dev;
 736
 737         if (sd->hflip == 0)
 738                 sccb_reg_write(gspca_dev, 0x0c,
 739                                 sccb_reg_read(gspca_dev, 0x0c) | 0x40);
 740         else
 741                 sccb_reg_write(gspca_dev, 0x0c,
 742                                 sccb_reg_read(gspca_dev, 0x0c) & 0xbf);
 743 }
 744
 745 static void setvflip(struct gspca_dev *gspca_dev)
 746 {
 747         struct sd *sd = (struct sd *) gspca_dev;
 748
 749         if (sd->vflip == 0)
 750                 sccb_reg_write(gspca_dev, 0x0c,
 751                                 sccb_reg_read(gspca_dev, 0x0c) | 0x80);
 752         else
 753                 sccb_reg_write(gspca_dev, 0x0c,
 754                                 sccb_reg_read(gspca_dev, 0x0c) & 0x7f);
 755 }
 756
 757 /* this function is called at probe time */
 758 static int sd_config(struct gspca_dev *gspca_dev,
 759                      const struct usb_device_id *id)
 760 {
 761         struct sd *sd = (struct sd *) gspca_dev;
 762         struct cam *cam;
 763
 764         cam = &gspca_dev->cam;
 765
 766         cam->cam_mode = ov772x_mode;
 767         cam->nmodes = ARRAY_SIZE(ov772x_mode);
 768         cam->mode_framerates = ov772x_framerates;
 769
 770         cam->bulk = 1;
 771         cam->bulk_size = 16384;
 772         cam->bulk_nurbs = 2;
 773
 774         sd->frame_rate = 30;
 775
 776         sd->brightness = BRIGHTNESS_DEF;
 777         sd->contrast = CONTRAST_DEF;
 778         sd->gain = GAIN_DEF;
 779         sd->exposure = EXPO_DEF;
 780         sd->hue = HUE_DEF;
 781 #if AUTOGAIN_DEF != 0
 782         sd->autogain = AUTOGAIN_DEF;
 783 #else
 784         gspca_dev->ctrl_inac |= (1 << AWB_IDX);
 785 #endif
 786 #if AWB_DEF != 0
 787         sd->awb = AWB_DEF
 788 #endif
 789 #if SHARPNESS_DEF != 0
 790         sd->sharpness = SHARPNESS_DEF;
 791 #endif
 792 #if HFLIP_DEF != 0
 793         sd->hflip = HFLIP_DEF;
 794 #endif
 795 #if VFLIP_DEF != 0
 796         sd->vflip = VFLIP_DEF;
 797 #endif
 798
 799         return 0;
 800 }
 801
 802 /* this function is called at probe and resume time */
 803 static int sd_init(struct gspca_dev *gspca_dev)
 804 {
 805         u16 sensor_id;
 806
 807         /* reset bridge */
 808         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
 809         ov534_reg_write(gspca_dev, 0xe0, 0x08);
 810         msleep(100);
 811
 812         /* initialize the sensor address */
 813         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
 814
 815         /* reset sensor */
 816         sccb_reg_write(gspca_dev, 0x12, 0x80);
 817         msleep(10);
 818
 819         /* probe the sensor */
 820         sccb_reg_read(gspca_dev, 0x0a);
 821         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
 822         sccb_reg_read(gspca_dev, 0x0b);
 823         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
 824         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
 825
 826         /* initialize */
 827         reg_w_array(gspca_dev, bridge_init,
 828                         ARRAY_SIZE(bridge_init));
 829         ov534_set_led(gspca_dev, 1);
 830         sccb_w_array(gspca_dev, sensor_init,
 831                         ARRAY_SIZE(sensor_init));
 832         ov534_reg_write(gspca_dev, 0xe0, 0x09);
 833         ov534_set_led(gspca_dev, 0);
 834         set_frame_rate(gspca_dev);
 835
 836         return 0;
 837 }
 838
 839 static int sd_start(struct gspca_dev *gspca_dev)
 840 {
 841         int mode;
 842
 843         mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
 844         if (mode != 0) {        /* 320x240 */
 845                 reg_w_array(gspca_dev, bridge_start_qvga,
 846                                 ARRAY_SIZE(bridge_start_qvga));
 847                 sccb_w_array(gspca_dev, sensor_start_qvga,
 848                                 ARRAY_SIZE(sensor_start_qvga));
 849         } else {                /* 640x480 */
 850                 reg_w_array(gspca_dev, bridge_start_vga,
 851                                 ARRAY_SIZE(bridge_start_vga));
 852                 sccb_w_array(gspca_dev, sensor_start_vga,
 853                                 ARRAY_SIZE(sensor_start_vga));
 854         }
 855         set_frame_rate(gspca_dev);
 856
 857         setautogain(gspca_dev);
 858         setawb(gspca_dev);
 859         setgain(gspca_dev);
 860         sethue(gspca_dev);
 861         setexposure(gspca_dev);
 862         setbrightness(gspca_dev);
 863         setcontrast(gspca_dev);
 864         setsharpness(gspca_dev);
 865         setvflip(gspca_dev);
 866         sethflip(gspca_dev);
 867
 868         ov534_set_led(gspca_dev, 1);
 869         ov534_reg_write(gspca_dev, 0xe0, 0x00);
 870         return 0;
 871 }
 872
 873 static void sd_stopN(struct gspca_dev *gspca_dev)
 874 {
 875         ov534_reg_write(gspca_dev, 0xe0, 0x09);
 876         ov534_set_led(gspca_dev, 0);
 877 }
 878
 879 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
 880 #define UVC_STREAM_EOH  (1 << 7)
 881 #define UVC_STREAM_ERR  (1 << 6)
 882 #define UVC_STREAM_STI  (1 << 5)
 883 #define UVC_STREAM_RES  (1 << 4)
 884 #define UVC_STREAM_SCR  (1 << 3)
 885 #define UVC_STREAM_PTS  (1 << 2)
 886 #define UVC_STREAM_EOF  (1 << 1)
 887 #define UVC_STREAM_FID  (1 << 0)
 888
 889 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 890                         u8 *data, int len)
 891 {
 892         struct sd *sd = (struct sd *) gspca_dev;
 893         __u32 this_pts;
 894         u16 this_fid;
 895         int remaining_len = len;
 896
 897         do {
 898                 len = min(remaining_len, 2048);
 899
 900                 /* Payloads are prefixed with a UVC-style header.  We
 901                    consider a frame to start when the FID toggles, or the PTS
 902                    changes.  A frame ends when EOF is set, and we've received
 903                    the correct number of bytes. */
 904
 905                 /* Verify UVC header.  Header length is always 12 */
 906                 if (data[0] != 12 || len < 12) {
 907                         PDEBUG(D_PACK, "bad header");
 908                         goto discard;
 909                 }
 910
 911                 /* Check errors */
 912                 if (data[1] & UVC_STREAM_ERR) {
 913                         PDEBUG(D_PACK, "payload error");
 914                         goto discard;
 915                 }
 916
 917                 /* Extract PTS and FID */
 918                 if (!(data[1] & UVC_STREAM_PTS)) {
 919                         PDEBUG(D_PACK, "PTS not present");
 920                         goto discard;
 921                 }
 922                 this_pts = (data[5] << 24) | (data[4] << 16)
 923                                                 | (data[3] << 8) | data[2];
 924                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
 925
 926                 /* If PTS or FID has changed, start a new frame. */
 927                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
 928                         if (gspca_dev->last_packet_type == INTER_PACKET)
 929                                 gspca_frame_add(gspca_dev, LAST_PACKET,
 930                                                 NULL, 0);
 931                         sd->last_pts = this_pts;
 932                         sd->last_fid = this_fid;
 933                         gspca_frame_add(gspca_dev, FIRST_PACKET,
 934                                         data + 12, len - 12);
 935                 /* If this packet is marked as EOF, end the frame */
 936                 } else if (data[1] & UVC_STREAM_EOF) {
 937                         struct gspca_frame *frame;
 938
 939                         sd->last_pts = 0;
 940                         frame = gspca_get_i_frame(gspca_dev);
 941                         if (frame == NULL)
 942                                 goto discard;
 943                         if (frame->data_end - frame->data + (len - 12) !=
 944                             gspca_dev->width * gspca_dev->height * 2) {
 945                                 PDEBUG(D_PACK, "wrong sized frame");
 946                                 goto discard;
 947                         }
 948                         gspca_frame_add(gspca_dev, LAST_PACKET,
 949                                         data + 12, len - 12);
 950                 } else {
 951
 952                         /* Add the data from this payload */
 953                         gspca_frame_add(gspca_dev, INTER_PACKET,
 954                                         data + 12, len - 12);
 955                 }
 956
 957                 /* Done this payload */
 958                 goto scan_next;
 959
 960 discard:
 961                 /* Discard data until a new frame starts. */
 962                 gspca_dev->last_packet_type = DISCARD_PACKET;
 963
 964 scan_next:
 965                 remaining_len -= len;
 966                 data += len;
 967         } while (remaining_len > 0);
 968 }
 969
 970 /* controls */
 971 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
 972 {
 973         struct sd *sd = (struct sd *) gspca_dev;
 974
 975         sd->gain = val;
 976         if (gspca_dev->streaming)
 977                 setgain(gspca_dev);
 978         return 0;
 979 }
 980
 981 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
 982 {
 983         struct sd *sd = (struct sd *) gspca_dev;
 984
 985         *val = sd->gain;
 986         return 0;
 987 }
 988
 989 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
 990 {
 991         struct sd *sd = (struct sd *) gspca_dev;
 992
 993         sd->exposure = val;
 994         if (gspca_dev->streaming)
 995                 setexposure(gspca_dev);
 996         return 0;
 997 }
 998
 999 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
1000 {
1001         struct sd *sd = (struct sd *) gspca_dev;
1002
1003         *val = sd->exposure;
1004         return 0;
1005 }
1006
1007 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
1008 {
1009         struct sd *sd = (struct sd *) gspca_dev;
1010
1011         sd->brightness = val;
1012         if (gspca_dev->streaming)
1013                 setbrightness(gspca_dev);
1014         return 0;
1015 }
1016
1017 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
1018 {
1019         struct sd *sd = (struct sd *) gspca_dev;
1020
1021         *val = sd->brightness;
1022         return 0;
1023 }
1024
1025 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
1026 {
1027         struct sd *sd = (struct sd *) gspca_dev;
1028
1029         sd->contrast = val;
1030         if (gspca_dev->streaming)
1031                 setcontrast(gspca_dev);
1032         return 0;
1033 }
1034
1035 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
1036 {
1037         struct sd *sd = (struct sd *) gspca_dev;
1038
1039         *val = sd->contrast;
1040         return 0;
1041 }
1042
1043 static int sd_sethue(struct gspca_dev *gspca_dev, __s32 val)
1044 {
1045         struct sd *sd = (struct sd *) gspca_dev;
1046
1047         sd->hue = val;
1048         if (gspca_dev->streaming)
1049                 sethue(gspca_dev);
1050         return 0;
1051 }
1052
1053 static int sd_gethue(struct gspca_dev *gspca_dev, __s32 *val)
1054 {
1055         struct sd *sd = (struct sd *) gspca_dev;
1056
1057         *val = sd->hue;
1058         return 0;
1059 }
1060
1061 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
1062 {
1063         struct sd *sd = (struct sd *) gspca_dev;
1064
1065         sd->autogain = val;
1066
1067         if (gspca_dev->streaming) {
1068
1069                 /* the auto white balance control works only
1070                  * when auto gain is set */
1071                 if (val)
1072                         gspca_dev->ctrl_inac &= ~(1 << AWB_IDX);
1073                 else
1074                         gspca_dev->ctrl_inac |= (1 << AWB_IDX);
1075                 setautogain(gspca_dev);
1076         }
1077         return 0;
1078 }
1079
1080 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
1081 {
1082         struct sd *sd = (struct sd *) gspca_dev;
1083
1084         *val = sd->autogain;
1085         return 0;
1086 }
1087
1088 static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val)
1089 {
1090         struct sd *sd = (struct sd *) gspca_dev;
1091
1092         sd->awb = val;
1093         if (gspca_dev->streaming)
1094                 setawb(gspca_dev);
1095         return 0;
1096 }
1097
1098 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val)
1099 {
1100         struct sd *sd = (struct sd *) gspca_dev;
1101
1102         *val = sd->awb;
1103         return 0;
1104 }
1105
1106 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
1107 {
1108         struct sd *sd = (struct sd *) gspca_dev;
1109
1110         sd->sharpness = val;
1111         if (gspca_dev->streaming)
1112                 setsharpness(gspca_dev);
1113         return 0;
1114 }
1115
1116 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
1117 {
1118         struct sd *sd = (struct sd *) gspca_dev;
1119
1120         *val = sd->sharpness;
1121         return 0;
1122 }
1123
1124 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
1125 {
1126         struct sd *sd = (struct sd *) gspca_dev;
1127
1128         sd->hflip = val;
1129         if (gspca_dev->streaming)
1130                 sethflip(gspca_dev);
1131         return 0;
1132 }
1133
1134 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
1135 {
1136         struct sd *sd = (struct sd *) gspca_dev;
1137
1138         *val = sd->hflip;
1139         return 0;
1140 }
1141
1142 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
1143 {
1144         struct sd *sd = (struct sd *) gspca_dev;
1145
1146         sd->vflip = val;
1147         if (gspca_dev->streaming)
1148                 setvflip(gspca_dev);
1149         return 0;
1150 }
1151
1152 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
1153 {
1154         struct sd *sd = (struct sd *) gspca_dev;
1155
1156         *val = sd->vflip;
1157         return 0;
1158 }
1159
1160 /* get stream parameters (framerate) */
1161 static int sd_get_streamparm(struct gspca_dev *gspca_dev,
1162                              struct v4l2_streamparm *parm)
1163 {
1164         struct v4l2_captureparm *cp = &parm->parm.capture;
1165         struct v4l2_fract *tpf = &cp->timeperframe;
1166         struct sd *sd = (struct sd *) gspca_dev;
1167
1168         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1169                 return -EINVAL;
1170
1171         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1172         tpf->numerator = 1;
1173         tpf->denominator = sd->frame_rate;
1174
1175         return 0;
1176 }
1177
1178 /* set stream parameters (framerate) */
1179 static int sd_set_streamparm(struct gspca_dev *gspca_dev,
1180                              struct v4l2_streamparm *parm)
1181 {
1182         struct v4l2_captureparm *cp = &parm->parm.capture;
1183         struct v4l2_fract *tpf = &cp->timeperframe;
1184         struct sd *sd = (struct sd *) gspca_dev;
1185
1186         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1187                 return -EINVAL;
1188
1189         /* Set requested framerate */
1190         sd->frame_rate = tpf->denominator / tpf->numerator;
1191         if (gspca_dev->streaming)
1192                 set_frame_rate(gspca_dev);
1193
1194         /* Return the actual framerate */
1195         tpf->numerator = 1;
1196         tpf->denominator = sd->frame_rate;
1197
1198         return 0;
1199 }
1200
1201 /* sub-driver description */
1202 static const struct sd_desc sd_desc = {
1203         .name     = MODULE_NAME,
1204         .ctrls    = sd_ctrls,
1205         .nctrls   = ARRAY_SIZE(sd_ctrls),
1206         .config   = sd_config,
1207         .init     = sd_init,
1208         .start    = sd_start,
1209         .stopN    = sd_stopN,
1210         .pkt_scan = sd_pkt_scan,
1211         .get_streamparm = sd_get_streamparm,
1212         .set_streamparm = sd_set_streamparm,
1213 };
1214
1215 /* -- module initialisation -- */
1216 static const __devinitdata struct usb_device_id device_table[] = {
1217         {USB_DEVICE(0x1415, 0x2000)},
1218         {}
1219 };
1220
1221 MODULE_DEVICE_TABLE(usb, device_table);
1222
1223 /* -- device connect -- */
1224 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1225 {
1226         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1227                                 THIS_MODULE);
1228 }
1229
1230 static struct usb_driver sd_driver = {
1231         .name       = MODULE_NAME,
1232         .id_table   = device_table,
1233         .probe      = sd_probe,
1234         .disconnect = gspca_disconnect,
1235 #ifdef CONFIG_PM
1236         .suspend    = gspca_suspend,
1237         .resume     = gspca_resume,
1238 #endif
1239 };
1240
1241 /* -- module insert / remove -- */
1242 static int __init sd_mod_init(void)
1243 {
1244         int ret;
1245
1246         ret = usb_register(&sd_driver);
1247         if (ret < 0)
1248                 return ret;
1249         PDEBUG(D_PROBE, "registered");
1250         return 0;
1251 }
1252
1253 static void __exit sd_mod_exit(void)
1254 {
1255         usb_deregister(&sd_driver);
1256         PDEBUG(D_PROBE, "deregistered");
1257 }
1258
1259 module_init(sd_mod_init);
1260 module_exit(sd_mod_exit);