drivers/media/video/gspca/spca561.c

   1 /*
   2  * Sunplus spca561 subdriver
   3  *
   4  * Copyright (C) 2004 Michel Xhaard mxhaard@magic.fr
   5  *
   6  * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21  */
  22
  23 #define MODULE_NAME "spca561"
  24
  25 #include "gspca.h"
  26
  27 #define DRIVER_VERSION_NUMBER   KERNEL_VERSION(2, 1, 0)
  28 static const char version[] = "2.1.0";
  29
  30 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  31 MODULE_DESCRIPTION("GSPCA/SPCA561 USB Camera Driver");
  32 MODULE_LICENSE("GPL");
  33
  34 /* specific webcam descriptor */
  35 struct sd {
  36         struct gspca_dev gspca_dev;     /* !! must be the first item */
  37
  38         unsigned short contrast;
  39         __u8 brightness;
  40         __u8 autogain;
  41
  42         __u8 chip_revision;
  43         signed char ag_cnt;
  44 #define AG_CNT_START 13
  45 };
  46
  47 /* V4L2 controls supported by the driver */
  48 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  49 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  50 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  51 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  52 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
  53 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
  54
  55 static struct ctrl sd_ctrls[] = {
  56 #define SD_BRIGHTNESS 0
  57         {
  58          {
  59           .id = V4L2_CID_BRIGHTNESS,
  60           .type = V4L2_CTRL_TYPE_INTEGER,
  61           .name = "Brightness",
  62           .minimum = 0,
  63           .maximum = 63,
  64           .step = 1,
  65           .default_value = 32,
  66           },
  67          .set = sd_setbrightness,
  68          .get = sd_getbrightness,
  69          },
  70 #define SD_CONTRAST 1
  71         {
  72          {
  73           .id = V4L2_CID_CONTRAST,
  74           .type = V4L2_CTRL_TYPE_INTEGER,
  75           .name = "Contrast",
  76           .minimum = 0,
  77           .maximum = 0x3fff,
  78           .step = 1,
  79           .default_value = 0x2000,
  80           },
  81          .set = sd_setcontrast,
  82          .get = sd_getcontrast,
  83          },
  84 #define SD_AUTOGAIN 2
  85         {
  86          {
  87           .id = V4L2_CID_AUTOGAIN,
  88           .type = V4L2_CTRL_TYPE_BOOLEAN,
  89           .name = "Auto Gain",
  90           .minimum = 0,
  91           .maximum = 1,
  92           .step = 1,
  93           .default_value = 1,
  94           },
  95          .set = sd_setautogain,
  96          .get = sd_getautogain,
  97          },
  98 };
  99
 100 static struct cam_mode sif_mode[] = {
 101         {V4L2_PIX_FMT_SGBRG8, 160, 120, 3},
 102         {V4L2_PIX_FMT_SGBRG8, 176, 144, 2},
 103         {V4L2_PIX_FMT_SPCA561, 320, 240, 1},
 104         {V4L2_PIX_FMT_SPCA561, 352, 288, 0},
 105 };
 106
 107 /*
 108  * Initialization data
 109  * I'm not very sure how to split initialization from open data
 110  * chunks. For now, we'll consider everything as initialization
 111  */
 112 /* Frame packet header offsets for the spca561 */
 113 #define SPCA561_OFFSET_SNAP 1
 114 #define SPCA561_OFFSET_TYPE 2
 115 #define SPCA561_OFFSET_COMPRESS 3
 116 #define SPCA561_OFFSET_FRAMSEQ   4
 117 #define SPCA561_OFFSET_GPIO 5
 118 #define SPCA561_OFFSET_USBBUFF 6
 119 #define SPCA561_OFFSET_WIN2GRAVE 7
 120 #define SPCA561_OFFSET_WIN2RAVE 8
 121 #define SPCA561_OFFSET_WIN2BAVE 9
 122 #define SPCA561_OFFSET_WIN2GBAVE 10
 123 #define SPCA561_OFFSET_WIN1GRAVE 11
 124 #define SPCA561_OFFSET_WIN1RAVE 12
 125 #define SPCA561_OFFSET_WIN1BAVE 13
 126 #define SPCA561_OFFSET_WIN1GBAVE 14
 127 #define SPCA561_OFFSET_FREQ 15
 128 #define SPCA561_OFFSET_VSYNC 16
 129 #define SPCA561_OFFSET_DATA 1
 130 #define SPCA561_INDEX_I2C_BASE 0x8800
 131 #define SPCA561_SNAPBIT 0x20
 132 #define SPCA561_SNAPCTRL 0x40
 133 enum {
 134         Rev072A = 0,
 135         Rev012A,
 136 };
 137
 138 static void reg_w_val(struct usb_device *dev, __u16 index, __u16 value)
 139 {
 140         int ret;
 141
 142         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 143                               0,                /* request */
 144                               USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 145                               value, index, NULL, 0, 500);
 146         PDEBUG(D_USBO, "reg write: 0x%02x:0x%02x", index, value);
 147         if (ret < 0)
 148                 PDEBUG(D_ERR, "reg write: error %d", ret);
 149 }
 150
 151 static void write_vector(struct gspca_dev *gspca_dev, __u16 data[][2])
 152 {
 153         struct usb_device *dev = gspca_dev->dev;
 154         int i;
 155
 156         i = 0;
 157         while (data[i][1] != 0) {
 158                 reg_w_val(dev, data[i][1], data[i][0]);
 159                 i++;
 160         }
 161 }
 162
 163 static void reg_r(struct usb_device *dev,
 164                   __u16 index, __u8 *buffer, __u16 length)
 165 {
 166         usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 167                         0,                      /* request */
 168                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 169                         0,                      /* value */
 170                         index, buffer, length, 500);
 171 }
 172
 173 static void reg_w_buf(struct usb_device *dev,
 174                       __u16 index, __u8 *buffer, __u16 length)
 175 {
 176         usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 177                         0,                      /* request */
 178                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 179                         0,                      /* value */
 180                         index, buffer, length, 500);
 181 }
 182
 183 static void i2c_init(struct gspca_dev *gspca_dev, __u8 mode)
 184 {
 185         reg_w_val(gspca_dev->dev, 0x92, 0x8804);
 186         reg_w_val(gspca_dev->dev, mode, 0x8802);
 187 }
 188
 189 static void i2c_write(struct gspca_dev *gspca_dev, __u16 valeur, __u16 reg)
 190 {
 191         int retry = 60;
 192         __u8 DataLow;
 193         __u8 DataHight;
 194         __u8 Data;
 195
 196         DataLow = valeur;
 197         DataHight = valeur >> 8;
 198         reg_w_val(gspca_dev->dev, reg, 0x8801);
 199         reg_w_val(gspca_dev->dev, DataLow, 0x8805);
 200         reg_w_val(gspca_dev->dev, DataHight, 0x8800);
 201         while (retry--) {
 202                 reg_r(gspca_dev->dev, 0x8803, &Data, 1);
 203                 if (!Data)
 204                         break;
 205         }
 206 }
 207
 208 static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode)
 209 {
 210         int retry = 60;
 211         __u8 value;
 212         __u8 vallsb;
 213         __u8 Data;
 214
 215         reg_w_val(gspca_dev->dev, 0x92, 0x8804);
 216         reg_w_val(gspca_dev->dev, reg, 0x8801);
 217         reg_w_val(gspca_dev->dev, (mode | 0x01), 0x8802);
 218         while (retry--) {
 219                 reg_r(gspca_dev->dev, 0x8803, &Data, 1);
 220                 if (!Data)
 221                         break;
 222         }
 223         if (retry == 0)
 224                 return -1;
 225         reg_r(gspca_dev->dev, 0x8800, &value, 1);
 226         reg_r(gspca_dev->dev, 0x8805, &vallsb, 1);
 227         return ((int) value << 8) | vallsb;
 228 }
 229
 230 static __u16 spca561_init_data[][2] = {
 231         {0x0000, 0x8114},       /* Software GPIO output data */
 232         {0x0001, 0x8114},       /* Software GPIO output data */
 233         {0x0000, 0x8112},       /* Some kind of reset */
 234         {0x0003, 0x8701},       /* PCLK clock delay adjustment */
 235         {0x0001, 0x8703},       /* HSYNC from cmos inverted */
 236         {0x0011, 0x8118},       /* Enable and conf sensor */
 237         {0x0001, 0x8118},       /* Conf sensor */
 238         {0x0092, 0x8804},       /* I know nothing about these */
 239         {0x0010, 0x8802},       /* 0x88xx registers, so I won't */
 240         /***************/
 241         {0x000d, 0x8805},       /* sensor default setting */
 242         {0x0001, 0x8801},       /* 1 <- 0x0d */
 243         {0x0000, 0x8800},
 244         {0x0018, 0x8805},
 245         {0x0002, 0x8801},       /* 2 <- 0x18 */
 246         {0x0000, 0x8800},
 247         {0x0065, 0x8805},
 248         {0x0004, 0x8801},       /* 4 <- 0x01 0x65 */
 249         {0x0001, 0x8800},
 250         {0x0021, 0x8805},
 251         {0x0005, 0x8801},       /* 5 <- 0x21 */
 252         {0x0000, 0x8800},
 253         {0x00aa, 0x8805},
 254         {0x0007, 0x8801},       /* 7 <- 0xaa */
 255         {0x0000, 0x8800},
 256         {0x0004, 0x8805},
 257         {0x0020, 0x8801},       /* 0x20 <- 0x15 0x04 */
 258         {0x0015, 0x8800},
 259         {0x0002, 0x8805},
 260         {0x0039, 0x8801},       /* 0x39 <- 0x02 */
 261         {0x0000, 0x8800},
 262         {0x0010, 0x8805},
 263         {0x0035, 0x8801},       /* 0x35 <- 0x10 */
 264         {0x0000, 0x8800},
 265         {0x0049, 0x8805},
 266         {0x0009, 0x8801},       /* 0x09 <- 0x10 0x49 */
 267         {0x0010, 0x8800},
 268         {0x000b, 0x8805},
 269         {0x0028, 0x8801},       /* 0x28 <- 0x0b */
 270         {0x0000, 0x8800},
 271         {0x000f, 0x8805},
 272         {0x003b, 0x8801},       /* 0x3b <- 0x0f */
 273         {0x0000, 0x8800},
 274         {0x0000, 0x8805},
 275         {0x003c, 0x8801},       /* 0x3c <- 0x00 */
 276         {0x0000, 0x8800},
 277         /***************/
 278         {0x0018, 0x8601},       /* Pixel/line selection for color separation */
 279         {0x0000, 0x8602},       /* Optical black level for user setting */
 280         {0x0060, 0x8604},       /* Optical black horizontal offset */
 281         {0x0002, 0x8605},       /* Optical black vertical offset */
 282         {0x0000, 0x8603},       /* Non-automatic optical black level */
 283         {0x0002, 0x865b},       /* Horizontal offset for valid pixels */
 284         {0x0000, 0x865f},       /* Vertical valid pixels window (x2) */
 285         {0x00b0, 0x865d},       /* Horizontal valid pixels window (x2) */
 286         {0x0090, 0x865e},       /* Vertical valid lines window (x2) */
 287         {0x00e0, 0x8406},       /* Memory buffer threshold */
 288         {0x0000, 0x8660},       /* Compensation memory stuff */
 289         {0x0002, 0x8201},       /* Output address for r/w serial EEPROM */
 290         {0x0008, 0x8200},       /* Clear valid bit for serial EEPROM */
 291         {0x0001, 0x8200},       /* OprMode to be executed by hardware */
 292         {0x0007, 0x8201},       /* Output address for r/w serial EEPROM */
 293         {0x0008, 0x8200},       /* Clear valid bit for serial EEPROM */
 294         {0x0001, 0x8200},       /* OprMode to be executed by hardware */
 295         {0x0010, 0x8660},       /* Compensation memory stuff */
 296         {0x0018, 0x8660},       /* Compensation memory stuff */
 297
 298         {0x0004, 0x8611},       /* R offset for white balance */
 299         {0x0004, 0x8612},       /* Gr offset for white balance */
 300         {0x0007, 0x8613},       /* B offset for white balance */
 301         {0x0000, 0x8614},       /* Gb offset for white balance */
 302         {0x008c, 0x8651},       /* R gain for white balance */
 303         {0x008c, 0x8652},       /* Gr gain for white balance */
 304         {0x00b5, 0x8653},       /* B gain for white balance */
 305         {0x008c, 0x8654},       /* Gb gain for white balance */
 306         {0x0002, 0x8502},       /* Maximum average bit rate stuff */
 307
 308         {0x0011, 0x8802},
 309         {0x0087, 0x8700},       /* Set master clock (96Mhz????) */
 310         {0x0081, 0x8702},       /* Master clock output enable */
 311
 312         {0x0000, 0x8500},       /* Set image type (352x288 no compression) */
 313         /* Originally was 0x0010 (352x288 compression) */
 314
 315         {0x0002, 0x865b},       /* Horizontal offset for valid pixels */
 316         {0x0003, 0x865c},       /* Vertical offset for valid lines */
 317         /***************//* sensor active */
 318         {0x0003, 0x8801},       /* 0x03 <- 0x01 0x21 //289 */
 319         {0x0021, 0x8805},
 320         {0x0001, 0x8800},
 321         {0x0004, 0x8801},       /* 0x04 <- 0x01 0x65 //357 */
 322         {0x0065, 0x8805},
 323         {0x0001, 0x8800},
 324         {0x0005, 0x8801},       /* 0x05 <- 0x2f */
 325         {0x002f, 0x8805},
 326         {0x0000, 0x8800},
 327         {0x0006, 0x8801},       /* 0x06 <- 0 */
 328         {0x0000, 0x8805},
 329         {0x0000, 0x8800},
 330         {0x000a, 0x8801},       /* 0x0a <- 2 */
 331         {0x0002, 0x8805},
 332         {0x0000, 0x8800},
 333         {0x0009, 0x8801},       /* 0x09 <- 0x1061 */
 334         {0x0061, 0x8805},
 335         {0x0010, 0x8800},
 336         {0x0035, 0x8801},       /* 0x35 <-0x14 */
 337         {0x0014, 0x8805},
 338         {0x0000, 0x8800},
 339         {0x0030, 0x8112},       /* ISO and drop packet enable */
 340         {0x0000, 0x8112},       /* Some kind of reset ???? */
 341         {0x0009, 0x8118},       /* Enable sensor and set standby */
 342         {0x0000, 0x8114},       /* Software GPIO output data */
 343         {0x0000, 0x8114},       /* Software GPIO output data */
 344         {0x0001, 0x8114},       /* Software GPIO output data */
 345         {0x0000, 0x8112},       /* Some kind of reset ??? */
 346         {0x0003, 0x8701},
 347         {0x0001, 0x8703},
 348         {0x0011, 0x8118},
 349         {0x0001, 0x8118},
 350         /***************/
 351         {0x0092, 0x8804},
 352         {0x0010, 0x8802},
 353         {0x000d, 0x8805},
 354         {0x0001, 0x8801},
 355         {0x0000, 0x8800},
 356         {0x0018, 0x8805},
 357         {0x0002, 0x8801},
 358         {0x0000, 0x8800},
 359         {0x0065, 0x8805},
 360         {0x0004, 0x8801},
 361         {0x0001, 0x8800},
 362         {0x0021, 0x8805},
 363         {0x0005, 0x8801},
 364         {0x0000, 0x8800},
 365         {0x00aa, 0x8805},
 366         {0x0007, 0x8801},       /* mode 0xaa */
 367         {0x0000, 0x8800},
 368         {0x0004, 0x8805},
 369         {0x0020, 0x8801},
 370         {0x0015, 0x8800},       /* mode 0x0415 */
 371         {0x0002, 0x8805},
 372         {0x0039, 0x8801},
 373         {0x0000, 0x8800},
 374         {0x0010, 0x8805},
 375         {0x0035, 0x8801},
 376         {0x0000, 0x8800},
 377         {0x0049, 0x8805},
 378         {0x0009, 0x8801},
 379         {0x0010, 0x8800},
 380         {0x000b, 0x8805},
 381         {0x0028, 0x8801},
 382         {0x0000, 0x8800},
 383         {0x000f, 0x8805},
 384         {0x003b, 0x8801},
 385         {0x0000, 0x8800},
 386         {0x0000, 0x8805},
 387         {0x003c, 0x8801},
 388         {0x0000, 0x8800},
 389         {0x0002, 0x8502},
 390         {0x0039, 0x8801},
 391         {0x0000, 0x8805},
 392         {0x0000, 0x8800},
 393
 394         {0x0087, 0x8700},       /* overwrite by start */
 395         {0x0081, 0x8702},
 396         {0x0000, 0x8500},
 397 /*      {0x0010, 0x8500},  -- Previous line was this */
 398         {0x0002, 0x865b},
 399         {0x0003, 0x865c},
 400         /***************/
 401         {0x0003, 0x8801},       /* 0x121-> 289 */
 402         {0x0021, 0x8805},
 403         {0x0001, 0x8800},
 404         {0x0004, 0x8801},       /* 0x165 -> 357 */
 405         {0x0065, 0x8805},
 406         {0x0001, 0x8800},
 407         {0x0005, 0x8801},       /* 0x2f //blanking control colonne */
 408         {0x002f, 0x8805},
 409         {0x0000, 0x8800},
 410         {0x0006, 0x8801},       /* 0x00 //blanking mode row */
 411         {0x0000, 0x8805},
 412         {0x0000, 0x8800},
 413         {0x000a, 0x8801},       /* 0x01 //0x02 */
 414         {0x0001, 0x8805},
 415         {0x0000, 0x8800},
 416         {0x0009, 0x8801},       /* 0x1061 - setexposure times && pixel clock
 417                                  * 0001 0 | 000 0110 0001 */
 418         {0x0061, 0x8805},       /* 61 31 */
 419         {0x0008, 0x8800},       /* 08 */
 420         {0x0035, 0x8801},       /* 0x14 - set gain general */
 421         {0x001f, 0x8805},       /* 0x14 */
 422         {0x0000, 0x8800},
 423         {0x0030, 0x8112},
 424         {}
 425 };
 426
 427 static void sensor_reset(struct gspca_dev *gspca_dev)
 428 {
 429         reg_w_val(gspca_dev->dev, 0x8631, 0xc8);
 430         reg_w_val(gspca_dev->dev, 0x8634, 0xc8);
 431         reg_w_val(gspca_dev->dev, 0x8112, 0x00);
 432         reg_w_val(gspca_dev->dev, 0x8114, 0x00);
 433         reg_w_val(gspca_dev->dev, 0x8118, 0x21);
 434         i2c_init(gspca_dev, 0x14);
 435         i2c_write(gspca_dev, 1, 0x0d);
 436         i2c_write(gspca_dev, 0, 0x0d);
 437 }
 438
 439 /******************** QC Express etch2 stuff ********************/
 440 static __u16 Pb100_1map8300[][2] = {
 441         /* reg, value */
 442         {0x8320, 0x3304},
 443
 444         {0x8303, 0x0125},       /* image area */
 445         {0x8304, 0x0169},
 446         {0x8328, 0x000b},
 447         {0x833c, 0x0001},
 448
 449         {0x832f, 0x0419},
 450         {0x8307, 0x00aa},
 451         {0x8301, 0x0003},
 452         {0x8302, 0x000e},
 453         {}
 454 };
 455 static __u16 Pb100_2map8300[][2] = {
 456         /* reg, value */
 457         {0x8339, 0x0000},
 458         {0x8307, 0x00aa},
 459         {}
 460 };
 461
 462 static __u16 spca561_161rev12A_data1[][2] = {
 463         {0x21, 0x8118},
 464         {0x01, 0x8114},
 465         {0x00, 0x8112},
 466         {0x92, 0x8804},
 467         {0x04, 0x8802},         /* windows uses 08 */
 468         {}
 469 };
 470 static __u16 spca561_161rev12A_data2[][2] = {
 471         {0x21, 0x8118},
 472         {0x10, 0x8500},
 473         {0x07, 0x8601},
 474         {0x07, 0x8602},
 475         {0x04, 0x8501},
 476         {0x21, 0x8118},
 477
 478         {0x07, 0x8201},         /* windows uses 02 */
 479         {0x08, 0x8200},
 480         {0x01, 0x8200},
 481
 482         {0x00, 0x8114},
 483         {0x01, 0x8114},         /* windows uses 00 */
 484
 485         {0x90, 0x8604},
 486         {0x00, 0x8605},
 487         {0xb0, 0x8603},
 488
 489         /* sensor gains */
 490         {0x00, 0x8610},         /* *red */
 491         {0x00, 0x8611},         /* 3f   *green */
 492         {0x00, 0x8612},         /* green *blue */
 493         {0x00, 0x8613},         /* blue *green */
 494         {0x35, 0x8614},         /* green *red */
 495         {0x35, 0x8615},         /* 40   *green */
 496         {0x35, 0x8616},         /* 7a   *blue */
 497         {0x35, 0x8617},         /* 40   *green */
 498
 499         {0x0c, 0x8620},         /* 0c */
 500         {0xc8, 0x8631},         /* c8 */
 501         {0xc8, 0x8634},         /* c8 */
 502         {0x23, 0x8635},         /* 23 */
 503         {0x1f, 0x8636},         /* 1f */
 504         {0xdd, 0x8637},         /* dd */
 505         {0xe1, 0x8638},         /* e1 */
 506         {0x1d, 0x8639},         /* 1d */
 507         {0x21, 0x863a},         /* 21 */
 508         {0xe3, 0x863b},         /* e3 */
 509         {0xdf, 0x863c},         /* df */
 510         {0xf0, 0x8505},
 511         {0x32, 0x850a},
 512         {}
 513 };
 514
 515 static void sensor_mapwrite(struct gspca_dev *gspca_dev,
 516                             __u16 sensormap[][2])
 517 {
 518         int i = 0;
 519         __u8 usbval[2];
 520
 521         while (sensormap[i][0]) {
 522                 usbval[0] = sensormap[i][1];
 523                 usbval[1] = sensormap[i][1] >> 8;
 524                 reg_w_buf(gspca_dev->dev, sensormap[i][0], usbval, 2);
 525                 i++;
 526         }
 527 }
 528 static void init_161rev12A(struct gspca_dev *gspca_dev)
 529 {
 530         sensor_reset(gspca_dev);
 531         write_vector(gspca_dev, spca561_161rev12A_data1);
 532         sensor_mapwrite(gspca_dev, Pb100_1map8300);
 533         write_vector(gspca_dev, spca561_161rev12A_data2);
 534         sensor_mapwrite(gspca_dev, Pb100_2map8300);
 535 }
 536
 537 /* this function is called at probe time */
 538 static int sd_config(struct gspca_dev *gspca_dev,
 539                      const struct usb_device_id *id)
 540 {
 541         struct sd *sd = (struct sd *) gspca_dev;
 542         struct usb_device *dev = gspca_dev->dev;
 543         struct cam *cam;
 544         __u16 vendor, product;
 545         __u8 data1, data2;
 546
 547         /* Read frm global register the USB product and vendor IDs, just to
 548          * prove that we can communicate with the device.  This works, which
 549          * confirms at we are communicating properly and that the device
 550          * is a 561. */
 551         reg_r(dev, 0x8104, &data1, 1);
 552         reg_r(dev, 0x8105, &data2, 1);
 553         vendor = (data2 << 8) | data1;
 554         reg_r(dev, 0x8106, &data1, 1);
 555         reg_r(dev, 0x8107, &data2, 1);
 556         product = (data2 << 8) | data1;
 557         if (vendor != id->idVendor || product != id->idProduct) {
 558                 PDEBUG(D_PROBE, "Bad vendor / product from device");
 559                 return -EINVAL;
 560         }
 561         switch (product) {
 562         case 0x0928:
 563         case 0x0929:
 564         case 0x092a:
 565         case 0x092b:
 566         case 0x092c:
 567         case 0x092d:
 568         case 0x092e:
 569         case 0x092f:
 570         case 0x403b:
 571                 sd->chip_revision = Rev012A;
 572                 break;
 573         default:
 574 /*      case 0x0561:
 575         case 0x0815:                    * ?? in spca508.c
 576         case 0x401a:
 577         case 0x7004:
 578         case 0x7e50:
 579         case 0xa001:
 580         case 0xcdee: */
 581                 sd->chip_revision = Rev072A;
 582                 break;
 583         }
 584         cam = &gspca_dev->cam;
 585         cam->dev_name = (char *) id->driver_info;
 586         cam->epaddr = 0x01;
 587         gspca_dev->nbalt = 7 + 1;       /* choose alternate 7 first */
 588         cam->cam_mode = sif_mode;
 589         cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
 590         sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
 591         sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
 592         sd->autogain = sd_ctrls[SD_AUTOGAIN].qctrl.default_value;
 593         return 0;
 594 }
 595
 596 /* this function is called at open time */
 597 static int sd_open(struct gspca_dev *gspca_dev)
 598 {
 599         struct sd *sd = (struct sd *) gspca_dev;
 600
 601         switch (sd->chip_revision) {
 602         case Rev072A:
 603                 PDEBUG(D_STREAM, "Chip revision id: 072a");
 604                 write_vector(gspca_dev, spca561_init_data);
 605                 break;
 606         default:
 607 /*      case Rev012A: */
 608                 PDEBUG(D_STREAM, "Chip revision id: 012a");
 609                 init_161rev12A(gspca_dev);
 610                 break;
 611         }
 612         return 0;
 613 }
 614
 615 static void setcontrast(struct gspca_dev *gspca_dev)
 616 {
 617         struct sd *sd = (struct sd *) gspca_dev;
 618         struct usb_device *dev = gspca_dev->dev;
 619         __u8 lowb;
 620         int expotimes;
 621
 622         switch (sd->chip_revision) {
 623         case Rev072A:
 624                 lowb = sd->contrast >> 8;
 625                 reg_w_val(dev, lowb, 0x8651);
 626                 reg_w_val(dev, lowb, 0x8652);
 627                 reg_w_val(dev, lowb, 0x8653);
 628                 reg_w_val(dev, lowb, 0x8654);
 629                 break;
 630         case Rev012A: {
 631                 __u8 Reg8391[] =
 632                         { 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00 };
 633
 634                 /* Write camera sensor settings */
 635                 expotimes = (sd->contrast >> 5) & 0x07ff;
 636                 Reg8391[0] = expotimes & 0xff;  /* exposure */
 637                 Reg8391[1] = 0x18 | (expotimes >> 8);
 638                 Reg8391[2] = sd->brightness;    /* gain */
 639                 reg_w_buf(dev, 0x8391, Reg8391, 8);
 640                 reg_w_buf(dev, 0x8390, Reg8391, 8);
 641                 break;
 642             }
 643         }
 644 }
 645
 646 static void sd_start(struct gspca_dev *gspca_dev)
 647 {
 648         struct sd *sd = (struct sd *) gspca_dev;
 649         struct usb_device *dev = gspca_dev->dev;
 650         int Clck;
 651         __u8 Reg8307[] = { 0xaa, 0x00 };
 652         int mode;
 653
 654         mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].mode;
 655         switch (sd->chip_revision) {
 656         case Rev072A:
 657                 switch (mode) {
 658                 default:
 659 /*              case 0:
 660                 case 1: */
 661                         Clck = 0x25;
 662                         break;
 663                 case 2:
 664                         Clck = 0x22;
 665                         break;
 666                 case 3:
 667                         Clck = 0x21;
 668                         break;
 669                 }
 670                 reg_w_val(dev, 0x8500, mode);   /* mode */
 671                 reg_w_val(dev, 0x8700, Clck);   /* 0x27 clock */
 672                 reg_w_val(dev, 0x8112, 0x10 | 0x20);
 673                 break;
 674         default:
 675 /*      case Rev012A: */
 676                 switch (mode) {
 677                 case 0:
 678                 case 1:
 679                         Clck = 0x8a;
 680                         break;
 681                 case 2:
 682                         Clck = 0x85;
 683                         break;
 684                 default:
 685                         Clck = 0x83;
 686                         break;
 687                 }
 688                 if (mode <= 1) {
 689                         /* Use compression on 320x240 and above */
 690                         reg_w_val(dev, 0x8500, 0x10 | mode);
 691                 } else {
 692                         /* I couldn't get the compression to work below 320x240
 693                          * Fortunately at these resolutions the bandwidth
 694                          * is sufficient to push raw frames at ~20fps */
 695                         reg_w_val(dev, 0x8500, mode);
 696                 }               /* -- qq@kuku.eu.org */
 697                 reg_w_buf(dev, 0x8307, Reg8307, 2);
 698                 reg_w_val(dev, 0x8700, Clck);   /* 0x8f 0x85 0x27 clock */
 699                 reg_w_val(dev, 0x8112, 0x1e | 0x20);
 700                 reg_w_val(dev, 0x850b, 0x03);
 701                 setcontrast(gspca_dev);
 702                 break;
 703         }
 704 }
 705
 706 static void sd_stopN(struct gspca_dev *gspca_dev)
 707 {
 708         reg_w_val(gspca_dev->dev, 0x8112, 0x20);
 709 }
 710
 711 static void sd_stop0(struct gspca_dev *gspca_dev)
 712 {
 713 }
 714
 715 /* this function is called at close time */
 716 static void sd_close(struct gspca_dev *gspca_dev)
 717 {
 718         reg_w_val(gspca_dev->dev, 0x8114, 0);
 719 }
 720
 721 static void setautogain(struct gspca_dev *gspca_dev)
 722 {
 723         struct sd *sd = (struct sd *) gspca_dev;
 724         int expotimes = 0;
 725         int pixelclk = 0;
 726         int gainG = 0;
 727         __u8 R, Gr, Gb, B;
 728         int y;
 729         __u8 luma_mean = 110;
 730         __u8 luma_delta = 20;
 731         __u8 spring = 4;
 732
 733         switch (sd->chip_revision) {
 734         case Rev072A:
 735                 reg_r(gspca_dev->dev, 0x8621, &Gr, 1);
 736                 reg_r(gspca_dev->dev, 0x8622, &R, 1);
 737                 reg_r(gspca_dev->dev, 0x8623, &B, 1);
 738                 reg_r(gspca_dev->dev, 0x8624, &Gb, 1);
 739                 y = (77 * R + 75 * (Gr + Gb) + 29 * B) >> 8;
 740                 /* u= (128*B-(43*(Gr+Gb+R))) >> 8; */
 741                 /* v= (128*R-(53*(Gr+Gb))-21*B) >> 8; */
 742                 /* PDEBUG(D_CONF,"reading Y %d U %d V %d ",y,u,v); */
 743
 744                 if (y < luma_mean - luma_delta ||
 745                     y > luma_mean + luma_delta) {
 746                         expotimes = i2c_read(gspca_dev, 0x09, 0x10);
 747                         pixelclk = 0x0800;
 748                         expotimes = expotimes & 0x07ff;
 749                         /* PDEBUG(D_PACK,
 750                                 "Exposition Times 0x%03X Clock 0x%04X ",
 751                                 expotimes,pixelclk); */
 752                         gainG = i2c_read(gspca_dev, 0x35, 0x10);
 753                         /* PDEBUG(D_PACK,
 754                                 "reading Gain register %d", gainG); */
 755
 756                         expotimes += (luma_mean - y) >> spring;
 757                         gainG += (luma_mean - y) / 50;
 758                         /* PDEBUG(D_PACK,
 759                                 "compute expotimes %d gain %d",
 760                                 expotimes,gainG); */
 761
 762                         if (gainG > 0x3f)
 763                                 gainG = 0x3f;
 764                         else if (gainG < 4)
 765                                 gainG = 3;
 766                         i2c_write(gspca_dev, gainG, 0x35);
 767
 768                         if (expotimes >= 0x0256)
 769                                 expotimes = 0x0256;
 770                         else if (expotimes < 4)
 771                                 expotimes = 3;
 772                         i2c_write(gspca_dev, expotimes | pixelclk, 0x09);
 773                 }
 774                 break;
 775         case Rev012A:
 776                 /* sensor registers is access and memory mapped to 0x8300 */
 777                 /* readind all 0x83xx block the sensor */
 778                 /*
 779                  * The data from the header seem wrong where is the luma
 780                  * and chroma mean value
 781                  * at the moment set exposure in contrast set
 782                  */
 783                 break;
 784         }
 785 }
 786
 787 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 788                         struct gspca_frame *frame, /* target */
 789                         __u8 *data,             /* isoc packet */
 790                         int len)                /* iso packet length */
 791 {
 792         struct sd *sd = (struct sd *) gspca_dev;
 793
 794         switch (data[0]) {
 795         case 0:         /* start of frame */
 796                 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
 797                                         data, 0);
 798                 if (sd->ag_cnt >= 0) {
 799                         if (--sd->ag_cnt < 0) {
 800                                 sd->ag_cnt = AG_CNT_START;
 801                                 setautogain(gspca_dev);
 802                         }
 803                 }
 804                 data += SPCA561_OFFSET_DATA;
 805                 len -= SPCA561_OFFSET_DATA;
 806                 if (data[1] & 0x10) {
 807                         /* compressed bayer */
 808                         gspca_frame_add(gspca_dev, FIRST_PACKET,
 809                                         frame, data, len);
 810                 } else {
 811                         /* raw bayer (with a header, which we skip) */
 812                         data += 20;
 813                         len -= 20;
 814                         gspca_frame_add(gspca_dev, FIRST_PACKET,
 815                                                 frame, data, len);
 816                 }
 817                 return;
 818         case 0xff:              /* drop */
 819 /*              gspca_dev->last_packet_type = DISCARD_PACKET; */
 820                 return;
 821         }
 822         data++;
 823         len--;
 824         gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
 825 }
 826
 827 static void setbrightness(struct gspca_dev *gspca_dev)
 828 {
 829         struct sd *sd = (struct sd *) gspca_dev;
 830         __u8 value;
 831
 832         switch (sd->chip_revision) {
 833         case Rev072A:
 834                 value = sd->brightness;
 835                 reg_w_val(gspca_dev->dev, value, 0x8611);
 836                 reg_w_val(gspca_dev->dev, value, 0x8612);
 837                 reg_w_val(gspca_dev->dev, value, 0x8613);
 838                 reg_w_val(gspca_dev->dev, value, 0x8614);
 839                 break;
 840         default:
 841 /*      case Rev012A: */
 842                 setcontrast(gspca_dev);
 843                 break;
 844         }
 845 }
 846
 847 static void getbrightness(struct gspca_dev *gspca_dev)
 848 {
 849         struct sd *sd = (struct sd *) gspca_dev;
 850         __u8 value;
 851         __u16 tot;
 852
 853         switch (sd->chip_revision) {
 854         case Rev072A:
 855                 tot = 0;
 856                 reg_r(gspca_dev->dev, 0x8611, &value, 1);
 857                 tot += value;
 858                 reg_r(gspca_dev->dev, 0x8612, &value, 1);
 859                 tot += value;
 860                 reg_r(gspca_dev->dev, 0x8613, &value, 1);
 861                 tot += value;
 862                 reg_r(gspca_dev->dev, 0x8614, &value, 1);
 863                 tot += value;
 864                 sd->brightness = tot >> 2;
 865                 break;
 866         default:
 867 /*      case Rev012A: */
 868                 /* no way to read sensor settings */
 869                 break;
 870         }
 871 }
 872
 873 static void getcontrast(struct gspca_dev *gspca_dev)
 874 {
 875         struct sd *sd = (struct sd *) gspca_dev;
 876         __u8 value;
 877         __u16 tot;
 878
 879         switch (sd->chip_revision) {
 880         case Rev072A:
 881                 tot = 0;
 882                 reg_r(gspca_dev->dev, 0x8651, &value, 1);
 883                 tot += value;
 884                 reg_r(gspca_dev->dev, 0x8652, &value, 1);
 885                 tot += value;
 886                 reg_r(gspca_dev->dev, 0x8653, &value, 1);
 887                 tot += value;
 888                 reg_r(gspca_dev->dev, 0x8654, &value, 1);
 889                 tot += value;
 890                 sd->contrast = tot << 6;
 891                 break;
 892         default:
 893 /*      case Rev012A: */
 894                 /* no way to read sensor settings */
 895                 break;
 896         }
 897         PDEBUG(D_CONF, "get contrast %d", sd->contrast);
 898 }
 899
 900 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 901 {
 902         struct sd *sd = (struct sd *) gspca_dev;
 903
 904         sd->brightness = val;
 905         if (gspca_dev->streaming)
 906                 setbrightness(gspca_dev);
 907         return 0;
 908 }
 909
 910 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 911 {
 912         struct sd *sd = (struct sd *) gspca_dev;
 913
 914         getbrightness(gspca_dev);
 915         *val = sd->brightness;
 916         return 0;
 917 }
 918
 919 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 920 {
 921         struct sd *sd = (struct sd *) gspca_dev;
 922
 923         sd->contrast = val;
 924         if (gspca_dev->streaming)
 925                 setcontrast(gspca_dev);
 926         return 0;
 927 }
 928
 929 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 930 {
 931         struct sd *sd = (struct sd *) gspca_dev;
 932
 933         getcontrast(gspca_dev);
 934         *val = sd->contrast;
 935         return 0;
 936 }
 937
 938 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
 939 {
 940         struct sd *sd = (struct sd *) gspca_dev;
 941
 942         sd->autogain = val;
 943         if (val)
 944                 sd->ag_cnt = AG_CNT_START;
 945         else
 946                 sd->ag_cnt = -1;
 947         return 0;
 948 }
 949
 950 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
 951 {
 952         struct sd *sd = (struct sd *) gspca_dev;
 953
 954         *val = sd->autogain;
 955         return 0;
 956 }
 957
 958 /* sub-driver description */
 959 static struct sd_desc sd_desc = {
 960         .name = MODULE_NAME,
 961         .ctrls = sd_ctrls,
 962         .nctrls = ARRAY_SIZE(sd_ctrls),
 963         .config = sd_config,
 964         .open = sd_open,
 965         .start = sd_start,
 966         .stopN = sd_stopN,
 967         .stop0 = sd_stop0,
 968         .close = sd_close,
 969         .pkt_scan = sd_pkt_scan,
 970 };
 971
 972 /* -- module initialisation -- */
 973 #define DVNM(name) .driver_info = (kernel_ulong_t) name
 974 static __devinitdata struct usb_device_id device_table[] = {
 975         {USB_DEVICE(0x041e, 0x401a), DVNM("Creative Webcam Vista (PD1100)")},
 976         {USB_DEVICE(0x041e, 0x403b),  DVNM("Creative Webcam Vista (VF0010)")},
 977         {USB_DEVICE(0x0458, 0x7004), DVNM("Genius VideoCAM Express V2")},
 978         {USB_DEVICE(0x046d, 0x0928), DVNM("Logitech QC Express Etch2")},
 979         {USB_DEVICE(0x046d, 0x0929), DVNM("Labtec Webcam Elch2")},
 980         {USB_DEVICE(0x046d, 0x092a), DVNM("Logitech QC for Notebook")},
 981         {USB_DEVICE(0x046d, 0x092b), DVNM("Labtec Webcam Plus")},
 982         {USB_DEVICE(0x046d, 0x092c), DVNM("Logitech QC chat Elch2")},
 983         {USB_DEVICE(0x046d, 0x092d), DVNM("Logitech QC Elch2")},
 984         {USB_DEVICE(0x046d, 0x092e), DVNM("Logitech QC Elch2")},
 985         {USB_DEVICE(0x046d, 0x092f), DVNM("Logitech QC Elch2")},
 986         {USB_DEVICE(0x04fc, 0x0561), DVNM("Flexcam 100")},
 987         {USB_DEVICE(0x060b, 0xa001), DVNM("Maxell Compact Pc PM3")},
 988         {USB_DEVICE(0x10fd, 0x7e50), DVNM("FlyCam Usb 100")},
 989         {USB_DEVICE(0xabcd, 0xcdee), DVNM("Petcam")},
 990         {}
 991 };
 992
 993 MODULE_DEVICE_TABLE(usb, device_table);
 994
 995 /* -- device connect -- */
 996 static int sd_probe(struct usb_interface *intf,
 997                     const struct usb_device_id *id)
 998 {
 999         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1000                                THIS_MODULE);
1001 }
1002
1003 static struct usb_driver sd_driver = {
1004         .name = MODULE_NAME,
1005         .id_table = device_table,
1006         .probe = sd_probe,
1007         .disconnect = gspca_disconnect,
1008 };
1009
1010 /* -- module insert / remove -- */
1011 static int __init sd_mod_init(void)
1012 {
1013         if (usb_register(&sd_driver) < 0)
1014                 return -1;
1015         PDEBUG(D_PROBE, "v%s registered", version);
1016         return 0;
1017 }
1018 static void __exit sd_mod_exit(void)
1019 {
1020         usb_deregister(&sd_driver);
1021         PDEBUG(D_PROBE, "deregistered");
1022 }
1023
1024 module_init(sd_mod_init);
1025 module_exit(sd_mod_exit);