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, awb, agc, aec controls
  14  *                  added 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 agc;
  64         u8 awb;
  65         u8 aec;
  66         s8 sharpness;
  67         u8 hflip;
  68         u8 vflip;
  69         u8 freqfltr;
  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_setagc(struct gspca_dev *gspca_dev, __s32 val);
  78 static int sd_getagc(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_setawb(struct gspca_dev *gspca_dev, __s32 val);
  86 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val);
  87 static int sd_setaec(struct gspca_dev *gspca_dev, __s32 val);
  88 static int sd_getaec(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 static int sd_setfreqfltr(struct gspca_dev *gspca_dev, __s32 val);
  94 static int sd_getfreqfltr(struct gspca_dev *gspca_dev, __s32 *val);
  95 static int sd_querymenu(struct gspca_dev *gspca_dev,
  96                 struct v4l2_querymenu *menu);
  97
  98 static const struct ctrl sd_ctrls[] = {
  99         {       /* 0 */
 100                 {
 101                         .id      = V4L2_CID_BRIGHTNESS,
 102                         .type    = V4L2_CTRL_TYPE_INTEGER,
 103                         .name    = "Brightness",
 104                         .minimum = 0,
 105                         .maximum = 255,
 106                         .step    = 1,
 107 #define BRIGHTNESS_DEF 0
 108                         .default_value = BRIGHTNESS_DEF,
 109                 },
 110                 .set = sd_setbrightness,
 111                 .get = sd_getbrightness,
 112         },
 113         {       /* 1 */
 114                 {
 115                         .id      = V4L2_CID_CONTRAST,
 116                         .type    = V4L2_CTRL_TYPE_INTEGER,
 117                         .name    = "Contrast",
 118                         .minimum = 0,
 119                         .maximum = 255,
 120                         .step    = 1,
 121 #define CONTRAST_DEF 32
 122                         .default_value = CONTRAST_DEF,
 123                 },
 124                 .set = sd_setcontrast,
 125                 .get = sd_getcontrast,
 126         },
 127         {       /* 2 */
 128                 {
 129                         .id      = V4L2_CID_GAIN,
 130                         .type    = V4L2_CTRL_TYPE_INTEGER,
 131                         .name    = "Main Gain",
 132                         .minimum = 0,
 133                         .maximum = 63,
 134                         .step    = 1,
 135 #define GAIN_DEF 20
 136                         .default_value = GAIN_DEF,
 137                 },
 138                 .set = sd_setgain,
 139                 .get = sd_getgain,
 140         },
 141         {       /* 3 */
 142                 {
 143                         .id      = V4L2_CID_EXPOSURE,
 144                         .type    = V4L2_CTRL_TYPE_INTEGER,
 145                         .name    = "Exposure",
 146                         .minimum = 0,
 147                         .maximum = 255,
 148                         .step    = 1,
 149 #define EXPO_DEF 120
 150                         .default_value = EXPO_DEF,
 151                 },
 152                 .set = sd_setexposure,
 153                 .get = sd_getexposure,
 154         },
 155         {       /* 4 */
 156                 {
 157                         .id      = V4L2_CID_AUTOGAIN,
 158                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 159                         .name    = "Auto Gain",
 160                         .minimum = 0,
 161                         .maximum = 1,
 162                         .step    = 1,
 163 #define AGC_DEF 1
 164                         .default_value = AGC_DEF,
 165                 },
 166                 .set = sd_setagc,
 167                 .get = sd_getagc,
 168         },
 169 #define AWB_IDX 5
 170         {       /* 5 */
 171                 {
 172                         .id      = V4L2_CID_AUTO_WHITE_BALANCE,
 173                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 174                         .name    = "Auto White Balance",
 175                         .minimum = 0,
 176                         .maximum = 1,
 177                         .step    = 1,
 178 #define AWB_DEF 1
 179                         .default_value = AWB_DEF,
 180                 },
 181                 .set = sd_setawb,
 182                 .get = sd_getawb,
 183         },
 184         {       /* 6 */
 185                 {
 186                         .id      = V4L2_CID_EXPOSURE_AUTO,
 187                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 188                         .name    = "Auto Exposure",
 189                         .minimum = 0,
 190                         .maximum = 1,
 191                         .step    = 1,
 192 #define AEC_DEF 1
 193                         .default_value = AEC_DEF,
 194                 },
 195                 .set = sd_setaec,
 196                 .get = sd_getaec,
 197         },
 198         {       /* 7 */
 199                 {
 200                         .id      = V4L2_CID_SHARPNESS,
 201                         .type    = V4L2_CTRL_TYPE_INTEGER,
 202                         .name    = "Sharpness",
 203                         .minimum = 0,
 204                         .maximum = 63,
 205                         .step    = 1,
 206 #define SHARPNESS_DEF 0
 207                         .default_value = SHARPNESS_DEF,
 208                 },
 209                 .set = sd_setsharpness,
 210                 .get = sd_getsharpness,
 211         },
 212         {       /* 8 */
 213                 {
 214                         .id      = V4L2_CID_HFLIP,
 215                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 216                         .name    = "HFlip",
 217                         .minimum = 0,
 218                         .maximum = 1,
 219                         .step    = 1,
 220 #define HFLIP_DEF 0
 221                         .default_value = HFLIP_DEF,
 222                 },
 223                 .set = sd_sethflip,
 224                 .get = sd_gethflip,
 225         },
 226         {       /* 9 */
 227                 {
 228                         .id      = V4L2_CID_VFLIP,
 229                         .type    = V4L2_CTRL_TYPE_BOOLEAN,
 230                         .name    = "VFlip",
 231                         .minimum = 0,
 232                         .maximum = 1,
 233                         .step    = 1,
 234 #define VFLIP_DEF 0
 235                         .default_value = VFLIP_DEF,
 236                 },
 237                 .set = sd_setvflip,
 238                 .get = sd_getvflip,
 239         },
 240         {       /* 10 */
 241                 {
 242                         .id      = V4L2_CID_POWER_LINE_FREQUENCY,
 243                         .type    = V4L2_CTRL_TYPE_MENU,
 244                         .name    = "Light Frequency Filter",
 245                         .minimum = 0,
 246                         .maximum = 1,
 247                         .step    = 1,
 248 #define FREQFLTR_DEF 0
 249                         .default_value = FREQFLTR_DEF,
 250                 },
 251                 .set = sd_setfreqfltr,
 252                 .get = sd_getfreqfltr,
 253         },
 254 };
 255
 256 static const struct v4l2_pix_format ov772x_mode[] = {
 257         {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 258          .bytesperline = 320 * 2,
 259          .sizeimage = 320 * 240 * 2,
 260          .colorspace = V4L2_COLORSPACE_SRGB,
 261          .priv = 1},
 262         {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
 263          .bytesperline = 640 * 2,
 264          .sizeimage = 640 * 480 * 2,
 265          .colorspace = V4L2_COLORSPACE_SRGB,
 266          .priv = 0},
 267 };
 268
 269 static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30};
 270 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
 271
 272 static const struct framerates ov772x_framerates[] = {
 273         { /* 320x240 */
 274                 .rates = qvga_rates,
 275                 .nrates = ARRAY_SIZE(qvga_rates),
 276         },
 277         { /* 640x480 */
 278                 .rates = vga_rates,
 279                 .nrates = ARRAY_SIZE(vga_rates),
 280         },
 281 };
 282
 283 static const u8 bridge_init[][2] = {
 284         { 0xc2, 0x0c },
 285         { 0x88, 0xf8 },
 286         { 0xc3, 0x69 },
 287         { 0x89, 0xff },
 288         { 0x76, 0x03 },
 289         { 0x92, 0x01 },
 290         { 0x93, 0x18 },
 291         { 0x94, 0x10 },
 292         { 0x95, 0x10 },
 293         { 0xe2, 0x00 },
 294         { 0xe7, 0x3e },
 295
 296         { 0x96, 0x00 },
 297
 298         { 0x97, 0x20 },
 299         { 0x97, 0x20 },
 300         { 0x97, 0x20 },
 301         { 0x97, 0x0a },
 302         { 0x97, 0x3f },
 303         { 0x97, 0x4a },
 304         { 0x97, 0x20 },
 305         { 0x97, 0x15 },
 306         { 0x97, 0x0b },
 307
 308         { 0x8e, 0x40 },
 309         { 0x1f, 0x81 },
 310         { 0x34, 0x05 },
 311         { 0xe3, 0x04 },
 312         { 0x88, 0x00 },
 313         { 0x89, 0x00 },
 314         { 0x76, 0x00 },
 315         { 0xe7, 0x2e },
 316         { 0x31, 0xf9 },
 317         { 0x25, 0x42 },
 318         { 0x21, 0xf0 },
 319
 320         { 0x1c, 0x00 },
 321         { 0x1d, 0x40 },
 322         { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
 323         { 0x1d, 0x00 }, /* payload size */
 324
 325         { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
 326         { 0x1d, 0x58 }, /* frame size */
 327         { 0x1d, 0x00 }, /* frame size */
 328
 329         { 0x1c, 0x0a },
 330         { 0x1d, 0x08 }, /* turn on UVC header */
 331         { 0x1d, 0x0e }, /* .. */
 332
 333         { 0x8d, 0x1c },
 334         { 0x8e, 0x80 },
 335         { 0xe5, 0x04 },
 336
 337         { 0xc0, 0x50 },
 338         { 0xc1, 0x3c },
 339         { 0xc2, 0x0c },
 340 };
 341 static const u8 sensor_init[][2] = {
 342         { 0x12, 0x80 },
 343         { 0x11, 0x01 },
 344 /*fixme: better have a delay?*/
 345         { 0x11, 0x01 },
 346         { 0x11, 0x01 },
 347         { 0x11, 0x01 },
 348         { 0x11, 0x01 },
 349         { 0x11, 0x01 },
 350         { 0x11, 0x01 },
 351         { 0x11, 0x01 },
 352         { 0x11, 0x01 },
 353         { 0x11, 0x01 },
 354         { 0x11, 0x01 },
 355
 356         { 0x3d, 0x03 },
 357         { 0x17, 0x26 },
 358         { 0x18, 0xa0 },
 359         { 0x19, 0x07 },
 360         { 0x1a, 0xf0 },
 361         { 0x32, 0x00 },
 362         { 0x29, 0xa0 },
 363         { 0x2c, 0xf0 },
 364         { 0x65, 0x20 },
 365         { 0x11, 0x01 },
 366         { 0x42, 0x7f },
 367         { 0x63, 0xaa },         /* AWB - was e0 */
 368         { 0x64, 0xff },
 369         { 0x66, 0x00 },
 370         { 0x13, 0xf0 },         /* com8 */
 371         { 0x0d, 0x41 },
 372         { 0x0f, 0xc5 },
 373         { 0x14, 0x11 },
 374
 375         { 0x22, 0x7f },
 376         { 0x23, 0x03 },
 377         { 0x24, 0x40 },
 378         { 0x25, 0x30 },
 379         { 0x26, 0xa1 },
 380         { 0x2a, 0x00 },
 381         { 0x2b, 0x00 },
 382         { 0x6b, 0xaa },
 383         { 0x13, 0xff },         /* AWB */
 384
 385         { 0x90, 0x05 },
 386         { 0x91, 0x01 },
 387         { 0x92, 0x03 },
 388         { 0x93, 0x00 },
 389         { 0x94, 0x60 },
 390         { 0x95, 0x3c },
 391         { 0x96, 0x24 },
 392         { 0x97, 0x1e },
 393         { 0x98, 0x62 },
 394         { 0x99, 0x80 },
 395         { 0x9a, 0x1e },
 396         { 0x9b, 0x08 },
 397         { 0x9c, 0x20 },
 398         { 0x9e, 0x81 },
 399
 400         { 0xa6, 0x04 },
 401         { 0x7e, 0x0c },
 402         { 0x7f, 0x16 },
 403         { 0x80, 0x2a },
 404         { 0x81, 0x4e },
 405         { 0x82, 0x61 },
 406         { 0x83, 0x6f },
 407         { 0x84, 0x7b },
 408         { 0x85, 0x86 },
 409         { 0x86, 0x8e },
 410         { 0x87, 0x97 },
 411         { 0x88, 0xa4 },
 412         { 0x89, 0xaf },
 413         { 0x8a, 0xc5 },
 414         { 0x8b, 0xd7 },
 415         { 0x8c, 0xe8 },
 416         { 0x8d, 0x20 },
 417
 418         { 0x0c, 0x90 },
 419
 420         { 0x2b, 0x00 },
 421         { 0x22, 0x7f },
 422         { 0x23, 0x03 },
 423         { 0x11, 0x01 },
 424         { 0x0c, 0xd0 },
 425         { 0x64, 0xff },
 426         { 0x0d, 0x41 },
 427
 428         { 0x14, 0x41 },
 429         { 0x0e, 0xcd },
 430         { 0xac, 0xbf },
 431         { 0x8e, 0x00 },         /* De-noise threshold */
 432         { 0x0c, 0xd0 }
 433 };
 434 static const u8 bridge_start_vga[][2] = {
 435         {0x1c, 0x00},
 436         {0x1d, 0x40},
 437         {0x1d, 0x02},
 438         {0x1d, 0x00},
 439         {0x1d, 0x02},
 440         {0x1d, 0x58},
 441         {0x1d, 0x00},
 442         {0xc0, 0x50},
 443         {0xc1, 0x3c},
 444 };
 445 static const u8 sensor_start_vga[][2] = {
 446         {0x12, 0x00},
 447         {0x17, 0x26},
 448         {0x18, 0xa0},
 449         {0x19, 0x07},
 450         {0x1a, 0xf0},
 451         {0x29, 0xa0},
 452         {0x2c, 0xf0},
 453         {0x65, 0x20},
 454 };
 455 static const u8 bridge_start_qvga[][2] = {
 456         {0x1c, 0x00},
 457         {0x1d, 0x40},
 458         {0x1d, 0x02},
 459         {0x1d, 0x00},
 460         {0x1d, 0x01},
 461         {0x1d, 0x4b},
 462         {0x1d, 0x00},
 463         {0xc0, 0x28},
 464         {0xc1, 0x1e},
 465 };
 466 static const u8 sensor_start_qvga[][2] = {
 467         {0x12, 0x40},
 468         {0x17, 0x3f},
 469         {0x18, 0x50},
 470         {0x19, 0x03},
 471         {0x1a, 0x78},
 472         {0x29, 0x50},
 473         {0x2c, 0x78},
 474         {0x65, 0x2f},
 475 };
 476
 477 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
 478 {
 479         struct usb_device *udev = gspca_dev->dev;
 480         int ret;
 481
 482         PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", reg, val);
 483         gspca_dev->usb_buf[0] = val;
 484         ret = usb_control_msg(udev,
 485                               usb_sndctrlpipe(udev, 0),
 486                               0x01,
 487                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 488                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 489         if (ret < 0)
 490                 err("write failed %d", ret);
 491 }
 492
 493 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 494 {
 495         struct usb_device *udev = gspca_dev->dev;
 496         int ret;
 497
 498         ret = usb_control_msg(udev,
 499                               usb_rcvctrlpipe(udev, 0),
 500                               0x01,
 501                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 502                               0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
 503         PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, gspca_dev->usb_buf[0]);
 504         if (ret < 0)
 505                 err("read failed %d", ret);
 506         return gspca_dev->usb_buf[0];
 507 }
 508
 509 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
 510  * (direction and output)? */
 511 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
 512 {
 513         u8 data;
 514
 515         PDEBUG(D_CONF, "led status: %d", status);
 516
 517         data = ov534_reg_read(gspca_dev, 0x21);
 518         data |= 0x80;
 519         ov534_reg_write(gspca_dev, 0x21, data);
 520
 521         data = ov534_reg_read(gspca_dev, 0x23);
 522         if (status)
 523                 data |= 0x80;
 524         else
 525                 data &= ~0x80;
 526
 527         ov534_reg_write(gspca_dev, 0x23, data);
 528
 529         if (!status) {
 530                 data = ov534_reg_read(gspca_dev, 0x21);
 531                 data &= ~0x80;
 532                 ov534_reg_write(gspca_dev, 0x21, data);
 533         }
 534 }
 535
 536 static int sccb_check_status(struct gspca_dev *gspca_dev)
 537 {
 538         u8 data;
 539         int i;
 540
 541         for (i = 0; i < 5; i++) {
 542                 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
 543
 544                 switch (data) {
 545                 case 0x00:
 546                         return 1;
 547                 case 0x04:
 548                         return 0;
 549                 case 0x03:
 550                         break;
 551                 default:
 552                         PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
 553                                data, i + 1);
 554                 }
 555         }
 556         return 0;
 557 }
 558
 559 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
 560 {
 561         PDEBUG(D_USBO, "reg: 0x%02x, val: 0x%02x", reg, val);
 562         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 563         ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
 564         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
 565
 566         if (!sccb_check_status(gspca_dev))
 567                 err("sccb_reg_write failed");
 568 }
 569
 570 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
 571 {
 572         ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
 573         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
 574         if (!sccb_check_status(gspca_dev))
 575                 err("sccb_reg_read failed 1");
 576
 577         ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
 578         if (!sccb_check_status(gspca_dev))
 579                 err("sccb_reg_read failed 2");
 580
 581         return ov534_reg_read(gspca_dev, OV534_REG_READ);
 582 }
 583
 584 /* output a bridge sequence (reg - val) */
 585 static void reg_w_array(struct gspca_dev *gspca_dev,
 586                         const u8 (*data)[2], int len)
 587 {
 588         while (--len >= 0) {
 589                 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 590                 data++;
 591         }
 592 }
 593
 594 /* output a sensor sequence (reg - val) */
 595 static void sccb_w_array(struct gspca_dev *gspca_dev,
 596                         const u8 (*data)[2], int len)
 597 {
 598         while (--len >= 0) {
 599                 if ((*data)[0] != 0xff) {
 600                         sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
 601                 } else {
 602                         sccb_reg_read(gspca_dev, (*data)[1]);
 603                         sccb_reg_write(gspca_dev, 0xff, 0x00);
 604                 }
 605                 data++;
 606         }
 607 }
 608
 609 /* ov772x specific controls */
 610 static void set_frame_rate(struct gspca_dev *gspca_dev)
 611 {
 612         struct sd *sd = (struct sd *) gspca_dev;
 613         int i;
 614         struct rate_s {
 615                 u8 fps;
 616                 u8 r11;
 617                 u8 r0d;
 618                 u8 re5;
 619         };
 620         const struct rate_s *r;
 621         static const struct rate_s rate_0[] = { /* 640x480 */
 622                 {60, 0x01, 0xc1, 0x04},
 623                 {50, 0x01, 0x41, 0x02},
 624                 {40, 0x02, 0xc1, 0x04},
 625                 {30, 0x04, 0x81, 0x02},
 626                 {15, 0x03, 0x41, 0x04},
 627         };
 628         static const struct rate_s rate_1[] = { /* 320x240 */
 629                 {125, 0x02, 0x81, 0x02},
 630                 {100, 0x02, 0xc1, 0x04},
 631                 {75, 0x03, 0xc1, 0x04},
 632                 {60, 0x04, 0xc1, 0x04},
 633                 {50, 0x02, 0x41, 0x04},
 634                 {40, 0x03, 0x41, 0x04},
 635                 {30, 0x04, 0x41, 0x04},
 636         };
 637
 638         if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
 639                 r = rate_0;
 640                 i = ARRAY_SIZE(rate_0);
 641         } else {
 642                 r = rate_1;
 643                 i = ARRAY_SIZE(rate_1);
 644         }
 645         while (--i > 0) {
 646                 if (sd->frame_rate >= r->fps)
 647                         break;
 648                 r++;
 649         }
 650
 651         sccb_reg_write(gspca_dev, 0x11, r->r11);
 652         sccb_reg_write(gspca_dev, 0x0d, r->r0d);
 653         ov534_reg_write(gspca_dev, 0xe5, r->re5);
 654
 655         PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
 656 }
 657
 658 static void setbrightness(struct gspca_dev *gspca_dev)
 659 {
 660         struct sd *sd = (struct sd *) gspca_dev;
 661
 662         sccb_reg_write(gspca_dev, 0x9b, sd->brightness);
 663 }
 664
 665 static void setcontrast(struct gspca_dev *gspca_dev)
 666 {
 667         struct sd *sd = (struct sd *) gspca_dev;
 668
 669         sccb_reg_write(gspca_dev, 0x9c, sd->contrast);
 670 }
 671
 672 static void setgain(struct gspca_dev *gspca_dev)
 673 {
 674         struct sd *sd = (struct sd *) gspca_dev;
 675         u8 val;
 676
 677         if (sd->agc)
 678                 return;
 679
 680         val = sd->gain;
 681         switch (val & 0x30) {
 682         case 0x00:
 683                 val &= 0x0f;
 684                 break;
 685         case 0x10:
 686                 val &= 0x0f;
 687                 val |= 0x30;
 688                 break;
 689         case 0x20:
 690                 val &= 0x0f;
 691                 val |= 0x70;
 692                 break;
 693         default:
 694 /*      case 0x30: */
 695                 val &= 0x0f;
 696                 val |= 0xf0;
 697                 break;
 698         }
 699         sccb_reg_write(gspca_dev, 0x00, val);
 700 }
 701
 702 static void setexposure(struct gspca_dev *gspca_dev)
 703 {
 704         struct sd *sd = (struct sd *) gspca_dev;
 705         u8 val;
 706
 707         if (sd->aec)
 708                 return;
 709
 710         /* 'val' is one byte and represents half of the exposure value we are
 711          * going to set into registers, a two bytes value:
 712          *
 713          *    MSB: ((u16) val << 1) >> 8   == val >> 7
 714          *    LSB: ((u16) val << 1) & 0xff == val << 1
 715          */
 716         val = sd->exposure;
 717         sccb_reg_write(gspca_dev, 0x08, val >> 7);
 718         sccb_reg_write(gspca_dev, 0x10, val << 1);
 719 }
 720
 721 static void setagc(struct gspca_dev *gspca_dev)
 722 {
 723         struct sd *sd = (struct sd *) gspca_dev;
 724
 725         if (sd->agc) {
 726                 sccb_reg_write(gspca_dev, 0x13,
 727                                 sccb_reg_read(gspca_dev, 0x13) | 0x04);
 728                 sccb_reg_write(gspca_dev, 0x64,
 729                                 sccb_reg_read(gspca_dev, 0x64) | 0x03);
 730         } else {
 731                 sccb_reg_write(gspca_dev, 0x13,
 732                                 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
 733                 sccb_reg_write(gspca_dev, 0x64,
 734                                 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
 735
 736                 setgain(gspca_dev);
 737         }
 738 }
 739
 740 static void setawb(struct gspca_dev *gspca_dev)
 741 {
 742         struct sd *sd = (struct sd *) gspca_dev;
 743
 744         if (sd->awb) {
 745                 sccb_reg_write(gspca_dev, 0x13,
 746                                 sccb_reg_read(gspca_dev, 0x13) | 0x02);
 747                 sccb_reg_write(gspca_dev, 0x63,
 748                                 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
 749         } else {
 750                 sccb_reg_write(gspca_dev, 0x13,
 751                                 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
 752                 sccb_reg_write(gspca_dev, 0x63,
 753                                 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
 754         }
 755 }
 756
 757 static void setaec(struct gspca_dev *gspca_dev)
 758 {
 759         struct sd *sd = (struct sd *) gspca_dev;
 760
 761         if (sd->aec)
 762                 sccb_reg_write(gspca_dev, 0x13,
 763                                 sccb_reg_read(gspca_dev, 0x13) | 0x01);
 764         else {
 765                 sccb_reg_write(gspca_dev, 0x13,
 766                                 sccb_reg_read(gspca_dev, 0x13) & ~0x01);
 767                 setexposure(gspca_dev);
 768         }
 769 }
 770
 771 static void setsharpness(struct gspca_dev *gspca_dev)
 772 {
 773         struct sd *sd = (struct sd *) gspca_dev;
 774         u8 val;
 775
 776         val = sd->sharpness;
 777         sccb_reg_write(gspca_dev, 0x91, val);   /* Auto de-noise threshold */
 778         sccb_reg_write(gspca_dev, 0x8e, val);   /* De-noise threshold */
 779 }
 780
 781 static void sethflip(struct gspca_dev *gspca_dev)
 782 {
 783         struct sd *sd = (struct sd *) gspca_dev;
 784
 785         if (sd->hflip == 0)
 786                 sccb_reg_write(gspca_dev, 0x0c,
 787                                 sccb_reg_read(gspca_dev, 0x0c) | 0x40);
 788         else
 789                 sccb_reg_write(gspca_dev, 0x0c,
 790                                 sccb_reg_read(gspca_dev, 0x0c) & ~0x40);
 791 }
 792
 793 static void setvflip(struct gspca_dev *gspca_dev)
 794 {
 795         struct sd *sd = (struct sd *) gspca_dev;
 796
 797         if (sd->vflip == 0)
 798                 sccb_reg_write(gspca_dev, 0x0c,
 799                                 sccb_reg_read(gspca_dev, 0x0c) | 0x80);
 800         else
 801                 sccb_reg_write(gspca_dev, 0x0c,
 802                                 sccb_reg_read(gspca_dev, 0x0c) & ~0x80);
 803 }
 804
 805 static void setfreqfltr(struct gspca_dev *gspca_dev)
 806 {
 807         struct sd *sd = (struct sd *) gspca_dev;
 808
 809         if (sd->freqfltr == 0)
 810                 sccb_reg_write(gspca_dev, 0x2b, 0x00);
 811         else
 812                 sccb_reg_write(gspca_dev, 0x2b, 0x9e);
 813 }
 814
 815
 816 /* this function is called at probe time */
 817 static int sd_config(struct gspca_dev *gspca_dev,
 818                      const struct usb_device_id *id)
 819 {
 820         struct sd *sd = (struct sd *) gspca_dev;
 821         struct cam *cam;
 822
 823         cam = &gspca_dev->cam;
 824
 825         cam->cam_mode = ov772x_mode;
 826         cam->nmodes = ARRAY_SIZE(ov772x_mode);
 827         cam->mode_framerates = ov772x_framerates;
 828
 829         cam->bulk = 1;
 830         cam->bulk_size = 16384;
 831         cam->bulk_nurbs = 2;
 832
 833         sd->frame_rate = 30;
 834
 835         sd->brightness = BRIGHTNESS_DEF;
 836         sd->contrast = CONTRAST_DEF;
 837         sd->gain = GAIN_DEF;
 838         sd->exposure = EXPO_DEF;
 839 #if AGC_DEF != 0
 840         sd->agc = AGC_DEF;
 841 #else
 842         gspca_dev->ctrl_inac |= (1 << AWB_IDX);
 843 #endif
 844         sd->awb = AWB_DEF;
 845         sd->aec = AEC_DEF;
 846         sd->sharpness = SHARPNESS_DEF;
 847         sd->hflip = HFLIP_DEF;
 848         sd->vflip = VFLIP_DEF;
 849         sd->freqfltr = FREQFLTR_DEF;
 850
 851         return 0;
 852 }
 853
 854 /* this function is called at probe and resume time */
 855 static int sd_init(struct gspca_dev *gspca_dev)
 856 {
 857         u16 sensor_id;
 858
 859         /* reset bridge */
 860         ov534_reg_write(gspca_dev, 0xe7, 0x3a);
 861         ov534_reg_write(gspca_dev, 0xe0, 0x08);
 862         msleep(100);
 863
 864         /* initialize the sensor address */
 865         ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
 866
 867         /* reset sensor */
 868         sccb_reg_write(gspca_dev, 0x12, 0x80);
 869         msleep(10);
 870
 871         /* probe the sensor */
 872         sccb_reg_read(gspca_dev, 0x0a);
 873         sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
 874         sccb_reg_read(gspca_dev, 0x0b);
 875         sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
 876         PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
 877
 878         /* initialize */
 879         reg_w_array(gspca_dev, bridge_init,
 880                         ARRAY_SIZE(bridge_init));
 881         ov534_set_led(gspca_dev, 1);
 882         sccb_w_array(gspca_dev, sensor_init,
 883                         ARRAY_SIZE(sensor_init));
 884         ov534_reg_write(gspca_dev, 0xe0, 0x09);
 885         ov534_set_led(gspca_dev, 0);
 886         set_frame_rate(gspca_dev);
 887
 888         return 0;
 889 }
 890
 891 static int sd_start(struct gspca_dev *gspca_dev)
 892 {
 893         int mode;
 894
 895         mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
 896         if (mode != 0) {        /* 320x240 */
 897                 reg_w_array(gspca_dev, bridge_start_qvga,
 898                                 ARRAY_SIZE(bridge_start_qvga));
 899                 sccb_w_array(gspca_dev, sensor_start_qvga,
 900                                 ARRAY_SIZE(sensor_start_qvga));
 901         } else {                /* 640x480 */
 902                 reg_w_array(gspca_dev, bridge_start_vga,
 903                                 ARRAY_SIZE(bridge_start_vga));
 904                 sccb_w_array(gspca_dev, sensor_start_vga,
 905                                 ARRAY_SIZE(sensor_start_vga));
 906         }
 907         set_frame_rate(gspca_dev);
 908
 909         setagc(gspca_dev);
 910         setawb(gspca_dev);
 911         setaec(gspca_dev);
 912         setgain(gspca_dev);
 913         setexposure(gspca_dev);
 914         setbrightness(gspca_dev);
 915         setcontrast(gspca_dev);
 916         setsharpness(gspca_dev);
 917         setvflip(gspca_dev);
 918         sethflip(gspca_dev);
 919         setfreqfltr(gspca_dev);
 920
 921         ov534_set_led(gspca_dev, 1);
 922         ov534_reg_write(gspca_dev, 0xe0, 0x00);
 923         return 0;
 924 }
 925
 926 static void sd_stopN(struct gspca_dev *gspca_dev)
 927 {
 928         ov534_reg_write(gspca_dev, 0xe0, 0x09);
 929         ov534_set_led(gspca_dev, 0);
 930 }
 931
 932 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
 933 #define UVC_STREAM_EOH  (1 << 7)
 934 #define UVC_STREAM_ERR  (1 << 6)
 935 #define UVC_STREAM_STI  (1 << 5)
 936 #define UVC_STREAM_RES  (1 << 4)
 937 #define UVC_STREAM_SCR  (1 << 3)
 938 #define UVC_STREAM_PTS  (1 << 2)
 939 #define UVC_STREAM_EOF  (1 << 1)
 940 #define UVC_STREAM_FID  (1 << 0)
 941
 942 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 943                         u8 *data, int len)
 944 {
 945         struct sd *sd = (struct sd *) gspca_dev;
 946         __u32 this_pts;
 947         u16 this_fid;
 948         int remaining_len = len;
 949
 950         do {
 951                 len = min(remaining_len, 2048);
 952
 953                 /* Payloads are prefixed with a UVC-style header.  We
 954                    consider a frame to start when the FID toggles, or the PTS
 955                    changes.  A frame ends when EOF is set, and we've received
 956                    the correct number of bytes. */
 957
 958                 /* Verify UVC header.  Header length is always 12 */
 959                 if (data[0] != 12 || len < 12) {
 960                         PDEBUG(D_PACK, "bad header");
 961                         goto discard;
 962                 }
 963
 964                 /* Check errors */
 965                 if (data[1] & UVC_STREAM_ERR) {
 966                         PDEBUG(D_PACK, "payload error");
 967                         goto discard;
 968                 }
 969
 970                 /* Extract PTS and FID */
 971                 if (!(data[1] & UVC_STREAM_PTS)) {
 972                         PDEBUG(D_PACK, "PTS not present");
 973                         goto discard;
 974                 }
 975                 this_pts = (data[5] << 24) | (data[4] << 16)
 976                                                 | (data[3] << 8) | data[2];
 977                 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
 978
 979                 /* If PTS or FID has changed, start a new frame. */
 980                 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
 981                         if (gspca_dev->last_packet_type == INTER_PACKET)
 982                                 gspca_frame_add(gspca_dev, LAST_PACKET,
 983                                                 NULL, 0);
 984                         sd->last_pts = this_pts;
 985                         sd->last_fid = this_fid;
 986                         gspca_frame_add(gspca_dev, FIRST_PACKET,
 987                                         data + 12, len - 12);
 988                 /* If this packet is marked as EOF, end the frame */
 989                 } else if (data[1] & UVC_STREAM_EOF) {
 990                         sd->last_pts = 0;
 991                         if (gspca_dev->image_len + len - 12 !=
 992                             gspca_dev->width * gspca_dev->height * 2) {
 993                                 PDEBUG(D_PACK, "wrong sized frame");
 994                                 goto discard;
 995                         }
 996                         gspca_frame_add(gspca_dev, LAST_PACKET,
 997                                         data + 12, len - 12);
 998                 } else {
 999
1000                         /* Add the data from this payload */
1001                         gspca_frame_add(gspca_dev, INTER_PACKET,
1002                                         data + 12, len - 12);
1003                 }
1004
1005                 /* Done this payload */
1006                 goto scan_next;
1007
1008 discard:
1009                 /* Discard data until a new frame starts. */
1010                 gspca_dev->last_packet_type = DISCARD_PACKET;
1011
1012 scan_next:
1013                 remaining_len -= len;
1014                 data += len;
1015         } while (remaining_len > 0);
1016 }
1017
1018 /* controls */
1019 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
1020 {
1021         struct sd *sd = (struct sd *) gspca_dev;
1022
1023         sd->gain = val;
1024         if (gspca_dev->streaming)
1025                 setgain(gspca_dev);
1026         return 0;
1027 }
1028
1029 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
1030 {
1031         struct sd *sd = (struct sd *) gspca_dev;
1032
1033         *val = sd->gain;
1034         return 0;
1035 }
1036
1037 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
1038 {
1039         struct sd *sd = (struct sd *) gspca_dev;
1040
1041         sd->exposure = val;
1042         if (gspca_dev->streaming)
1043                 setexposure(gspca_dev);
1044         return 0;
1045 }
1046
1047 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
1048 {
1049         struct sd *sd = (struct sd *) gspca_dev;
1050
1051         *val = sd->exposure;
1052         return 0;
1053 }
1054
1055 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
1056 {
1057         struct sd *sd = (struct sd *) gspca_dev;
1058
1059         sd->brightness = val;
1060         if (gspca_dev->streaming)
1061                 setbrightness(gspca_dev);
1062         return 0;
1063 }
1064
1065 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
1066 {
1067         struct sd *sd = (struct sd *) gspca_dev;
1068
1069         *val = sd->brightness;
1070         return 0;
1071 }
1072
1073 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
1074 {
1075         struct sd *sd = (struct sd *) gspca_dev;
1076
1077         sd->contrast = val;
1078         if (gspca_dev->streaming)
1079                 setcontrast(gspca_dev);
1080         return 0;
1081 }
1082
1083 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
1084 {
1085         struct sd *sd = (struct sd *) gspca_dev;
1086
1087         *val = sd->contrast;
1088         return 0;
1089 }
1090
1091 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val)
1092 {
1093         struct sd *sd = (struct sd *) gspca_dev;
1094
1095         sd->agc = val;
1096
1097         if (gspca_dev->streaming) {
1098
1099                 /* the auto white balance control works only
1100                  * when auto gain is set */
1101                 if (val)
1102                         gspca_dev->ctrl_inac &= ~(1 << AWB_IDX);
1103                 else
1104                         gspca_dev->ctrl_inac |= (1 << AWB_IDX);
1105                 setagc(gspca_dev);
1106         }
1107         return 0;
1108 }
1109
1110 static int sd_getagc(struct gspca_dev *gspca_dev, __s32 *val)
1111 {
1112         struct sd *sd = (struct sd *) gspca_dev;
1113
1114         *val = sd->agc;
1115         return 0;
1116 }
1117
1118 static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val)
1119 {
1120         struct sd *sd = (struct sd *) gspca_dev;
1121
1122         sd->awb = val;
1123         if (gspca_dev->streaming)
1124                 setawb(gspca_dev);
1125         return 0;
1126 }
1127
1128 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val)
1129 {
1130         struct sd *sd = (struct sd *) gspca_dev;
1131
1132         *val = sd->awb;
1133         return 0;
1134 }
1135
1136 static int sd_setaec(struct gspca_dev *gspca_dev, __s32 val)
1137 {
1138         struct sd *sd = (struct sd *) gspca_dev;
1139
1140         sd->aec = val;
1141         if (gspca_dev->streaming)
1142                 setaec(gspca_dev);
1143         return 0;
1144 }
1145
1146 static int sd_getaec(struct gspca_dev *gspca_dev, __s32 *val)
1147 {
1148         struct sd *sd = (struct sd *) gspca_dev;
1149
1150         *val = sd->aec;
1151         return 0;
1152 }
1153
1154 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
1155 {
1156         struct sd *sd = (struct sd *) gspca_dev;
1157
1158         sd->sharpness = val;
1159         if (gspca_dev->streaming)
1160                 setsharpness(gspca_dev);
1161         return 0;
1162 }
1163
1164 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
1165 {
1166         struct sd *sd = (struct sd *) gspca_dev;
1167
1168         *val = sd->sharpness;
1169         return 0;
1170 }
1171
1172 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
1173 {
1174         struct sd *sd = (struct sd *) gspca_dev;
1175
1176         sd->hflip = val;
1177         if (gspca_dev->streaming)
1178                 sethflip(gspca_dev);
1179         return 0;
1180 }
1181
1182 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
1183 {
1184         struct sd *sd = (struct sd *) gspca_dev;
1185
1186         *val = sd->hflip;
1187         return 0;
1188 }
1189
1190 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
1191 {
1192         struct sd *sd = (struct sd *) gspca_dev;
1193
1194         sd->vflip = val;
1195         if (gspca_dev->streaming)
1196                 setvflip(gspca_dev);
1197         return 0;
1198 }
1199
1200 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
1201 {
1202         struct sd *sd = (struct sd *) gspca_dev;
1203
1204         *val = sd->vflip;
1205         return 0;
1206 }
1207
1208 static int sd_setfreqfltr(struct gspca_dev *gspca_dev, __s32 val)
1209 {
1210         struct sd *sd = (struct sd *) gspca_dev;
1211
1212         sd->freqfltr = val;
1213         if (gspca_dev->streaming)
1214                 setfreqfltr(gspca_dev);
1215         return 0;
1216 }
1217
1218 static int sd_getfreqfltr(struct gspca_dev *gspca_dev, __s32 *val)
1219 {
1220         struct sd *sd = (struct sd *) gspca_dev;
1221
1222         *val = sd->freqfltr;
1223         return 0;
1224 }
1225
1226 static int sd_querymenu(struct gspca_dev *gspca_dev,
1227                 struct v4l2_querymenu *menu)
1228 {
1229         switch (menu->id) {
1230         case V4L2_CID_POWER_LINE_FREQUENCY:
1231                 switch (menu->index) {
1232                 case 0:         /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
1233                         strcpy((char *) menu->name, "Disabled");
1234                         return 0;
1235                 case 1:         /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
1236                         strcpy((char *) menu->name, "50 Hz");
1237                         return 0;
1238                 }
1239                 break;
1240         }
1241
1242         return -EINVAL;
1243 }
1244
1245 /* get stream parameters (framerate) */
1246 static int sd_get_streamparm(struct gspca_dev *gspca_dev,
1247                              struct v4l2_streamparm *parm)
1248 {
1249         struct v4l2_captureparm *cp = &parm->parm.capture;
1250         struct v4l2_fract *tpf = &cp->timeperframe;
1251         struct sd *sd = (struct sd *) gspca_dev;
1252
1253         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1254                 return -EINVAL;
1255
1256         cp->capability |= V4L2_CAP_TIMEPERFRAME;
1257         tpf->numerator = 1;
1258         tpf->denominator = sd->frame_rate;
1259
1260         return 0;
1261 }
1262
1263 /* set stream parameters (framerate) */
1264 static int sd_set_streamparm(struct gspca_dev *gspca_dev,
1265                              struct v4l2_streamparm *parm)
1266 {
1267         struct v4l2_captureparm *cp = &parm->parm.capture;
1268         struct v4l2_fract *tpf = &cp->timeperframe;
1269         struct sd *sd = (struct sd *) gspca_dev;
1270
1271         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1272                 return -EINVAL;
1273
1274         /* Set requested framerate */
1275         sd->frame_rate = tpf->denominator / tpf->numerator;
1276         if (gspca_dev->streaming)
1277                 set_frame_rate(gspca_dev);
1278
1279         /* Return the actual framerate */
1280         tpf->numerator = 1;
1281         tpf->denominator = sd->frame_rate;
1282
1283         return 0;
1284 }
1285
1286 /* sub-driver description */
1287 static const struct sd_desc sd_desc = {
1288         .name     = MODULE_NAME,
1289         .ctrls    = sd_ctrls,
1290         .nctrls   = ARRAY_SIZE(sd_ctrls),
1291         .config   = sd_config,
1292         .init     = sd_init,
1293         .start    = sd_start,
1294         .stopN    = sd_stopN,
1295         .pkt_scan = sd_pkt_scan,
1296         .querymenu = sd_querymenu,
1297         .get_streamparm = sd_get_streamparm,
1298         .set_streamparm = sd_set_streamparm,
1299 };
1300
1301 /* -- module initialisation -- */
1302 static const __devinitdata struct usb_device_id device_table[] = {
1303         {USB_DEVICE(0x1415, 0x2000)},
1304         {}
1305 };
1306
1307 MODULE_DEVICE_TABLE(usb, device_table);
1308
1309 /* -- device connect -- */
1310 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1311 {
1312         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1313                                 THIS_MODULE);
1314 }
1315
1316 static struct usb_driver sd_driver = {
1317         .name       = MODULE_NAME,
1318         .id_table   = device_table,
1319         .probe      = sd_probe,
1320         .disconnect = gspca_disconnect,
1321 #ifdef CONFIG_PM
1322         .suspend    = gspca_suspend,
1323         .resume     = gspca_resume,
1324 #endif
1325 };
1326
1327 /* -- module insert / remove -- */
1328 static int __init sd_mod_init(void)
1329 {
1330         return usb_register(&sd_driver);
1331 }
1332
1333 static void __exit sd_mod_exit(void)
1334 {
1335         usb_deregister(&sd_driver);
1336 }
1337
1338 module_init(sd_mod_init);
1339 module_exit(sd_mod_exit);