root/drivers/media/usb/gspca/spca505.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. reg_write
  2. reg_read
  3. write_vector
  4. sd_config
  5. sd_init
  6. setbrightness
  7. sd_start
  8. sd_stopN
  9. sd_stop0
  10. sd_pkt_scan
  11. sd_s_ctrl
  12. sd_init_controls
  13. sd_probe
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * SPCA505 chip based cameras initialization data
   4  *
   5  * V4L2 by Jean-Francis Moine <http://moinejf.free.fr>
   6  */
   7 
   8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
   9 
  10 #define MODULE_NAME "spca505"
  11 
  12 #include "gspca.h"
  13 
  14 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  15 MODULE_DESCRIPTION("GSPCA/SPCA505 USB Camera Driver");
  16 MODULE_LICENSE("GPL");
  17 
  18 /* specific webcam descriptor */
  19 struct sd {
  20         struct gspca_dev gspca_dev;             /* !! must be the first item */
  21 
  22         u8 subtype;
  23 #define IntelPCCameraPro 0
  24 #define Nxultra 1
  25 };
  26 
  27 static const struct v4l2_pix_format vga_mode[] = {
  28         {160, 120, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
  29                 .bytesperline = 160,
  30                 .sizeimage = 160 * 120 * 3 / 2,
  31                 .colorspace = V4L2_COLORSPACE_SRGB,
  32                 .priv = 4},
  33         {176, 144, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
  34                 .bytesperline = 176,
  35                 .sizeimage = 176 * 144 * 3 / 2,
  36                 .colorspace = V4L2_COLORSPACE_SRGB,
  37                 .priv = 3},
  38         {320, 240, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
  39                 .bytesperline = 320,
  40                 .sizeimage = 320 * 240 * 3 / 2,
  41                 .colorspace = V4L2_COLORSPACE_SRGB,
  42                 .priv = 2},
  43         {352, 288, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
  44                 .bytesperline = 352,
  45                 .sizeimage = 352 * 288 * 3 / 2,
  46                 .colorspace = V4L2_COLORSPACE_SRGB,
  47                 .priv = 1},
  48         {640, 480, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
  49                 .bytesperline = 640,
  50                 .sizeimage = 640 * 480 * 3 / 2,
  51                 .colorspace = V4L2_COLORSPACE_SRGB,
  52                 .priv = 0},
  53 };
  54 
  55 #define SPCA50X_OFFSET_DATA 10
  56 
  57 #define SPCA50X_REG_USB 0x02    /* spca505 501 */
  58 
  59 #define SPCA50X_USB_CTRL 0x00   /* spca505 */
  60 #define SPCA50X_CUSB_ENABLE 0x01 /* spca505 */
  61 
  62 #define SPCA50X_REG_GLOBAL 0x03 /* spca505 */
  63 #define SPCA50X_GMISC0_IDSEL 0x01 /* Global control device ID select spca505 */
  64 #define SPCA50X_GLOBAL_MISC0 0x00 /* Global control miscellaneous 0 spca505 */
  65 
  66 #define SPCA50X_GLOBAL_MISC1 0x01 /* 505 */
  67 #define SPCA50X_GLOBAL_MISC3 0x03 /* 505 */
  68 #define SPCA50X_GMISC3_SAA7113RST 0x20  /* Not sure about this one spca505 */
  69 
  70 /* Image format and compression control */
  71 #define SPCA50X_REG_COMPRESS 0x04
  72 
  73 /*
  74  * Data to initialize a SPCA505. Common to the CCD and external modes
  75  */
  76 static const u8 spca505_init_data[][3] = {
  77         /* bmRequest,value,index */
  78         {SPCA50X_REG_GLOBAL, SPCA50X_GMISC3_SAA7113RST, SPCA50X_GLOBAL_MISC3},
  79         /* Sensor reset */
  80         {SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC3},
  81         {SPCA50X_REG_GLOBAL, 0x00, SPCA50X_GLOBAL_MISC1},
  82         /* Block USB reset */
  83         {SPCA50X_REG_GLOBAL, SPCA50X_GMISC0_IDSEL, SPCA50X_GLOBAL_MISC0},
  84 
  85         {0x05, 0x01, 0x10},
  86                                         /* Maybe power down some stuff */
  87         {0x05, 0x0f, 0x11},
  88 
  89         /* Setup internal CCD  ? */
  90         {0x06, 0x10, 0x08},
  91         {0x06, 0x00, 0x09},
  92         {0x06, 0x00, 0x0a},
  93         {0x06, 0x00, 0x0b},
  94         {0x06, 0x10, 0x0c},
  95         {0x06, 0x00, 0x0d},
  96         {0x06, 0x00, 0x0e},
  97         {0x06, 0x00, 0x0f},
  98         {0x06, 0x10, 0x10},
  99         {0x06, 0x02, 0x11},
 100         {0x06, 0x00, 0x12},
 101         {0x06, 0x04, 0x13},
 102         {0x06, 0x02, 0x14},
 103         {0x06, 0x8a, 0x51},
 104         {0x06, 0x40, 0x52},
 105         {0x06, 0xb6, 0x53},
 106         {0x06, 0x3d, 0x54},
 107         {}
 108 };
 109 
 110 /*
 111  * Data to initialize the camera using the internal CCD
 112  */
 113 static const u8 spca505_open_data_ccd[][3] = {
 114         /* bmRequest,value,index */
 115         /* Internal CCD data set */
 116         {0x03, 0x04, 0x01},
 117         /* This could be a reset */
 118         {0x03, 0x00, 0x01},
 119 
 120         /* Setup compression and image registers. 0x6 and 0x7 seem to be
 121            related to H&V hold, and are resolution mode specific */
 122                 {0x04, 0x10, 0x01},
 123                 /* DIFF(0x50), was (0x10) */
 124         {0x04, 0x00, 0x04},
 125         {0x04, 0x00, 0x05},
 126         {0x04, 0x20, 0x06},
 127         {0x04, 0x20, 0x07},
 128 
 129         {0x08, 0x0a, 0x00},
 130         /* DIFF (0x4a), was (0xa) */
 131 
 132         {0x05, 0x00, 0x10},
 133         {0x05, 0x00, 0x11},
 134         {0x05, 0x00, 0x00},
 135         /* DIFF not written */
 136         {0x05, 0x00, 0x01},
 137         /* DIFF not written */
 138         {0x05, 0x00, 0x02},
 139         /* DIFF not written */
 140         {0x05, 0x00, 0x03},
 141         /* DIFF not written */
 142         {0x05, 0x00, 0x04},
 143         /* DIFF not written */
 144                 {0x05, 0x80, 0x05},
 145                 /* DIFF not written */
 146                 {0x05, 0xe0, 0x06},
 147                 /* DIFF not written */
 148                 {0x05, 0x20, 0x07},
 149                 /* DIFF not written */
 150                 {0x05, 0xa0, 0x08},
 151                 /* DIFF not written */
 152                 {0x05, 0x0, 0x12},
 153                 /* DIFF not written */
 154         {0x05, 0x02, 0x0f},
 155         /* DIFF not written */
 156                 {0x05, 0x10, 0x46},
 157                 /* DIFF not written */
 158                 {0x05, 0x8, 0x4a},
 159                 /* DIFF not written */
 160 
 161         {0x03, 0x08, 0x03},
 162         /* DIFF (0x3,0x28,0x3) */
 163         {0x03, 0x08, 0x01},
 164         {0x03, 0x0c, 0x03},
 165         /* DIFF not written */
 166                 {0x03, 0x21, 0x00},
 167                 /* DIFF (0x39) */
 168 
 169 /* Extra block copied from init to hopefully ensure CCD is in a sane state */
 170         {0x06, 0x10, 0x08},
 171         {0x06, 0x00, 0x09},
 172         {0x06, 0x00, 0x0a},
 173         {0x06, 0x00, 0x0b},
 174         {0x06, 0x10, 0x0c},
 175         {0x06, 0x00, 0x0d},
 176         {0x06, 0x00, 0x0e},
 177         {0x06, 0x00, 0x0f},
 178         {0x06, 0x10, 0x10},
 179         {0x06, 0x02, 0x11},
 180         {0x06, 0x00, 0x12},
 181         {0x06, 0x04, 0x13},
 182         {0x06, 0x02, 0x14},
 183         {0x06, 0x8a, 0x51},
 184         {0x06, 0x40, 0x52},
 185         {0x06, 0xb6, 0x53},
 186         {0x06, 0x3d, 0x54},
 187         /* End of extra block */
 188 
 189                 {0x06, 0x3f, 0x1},
 190                 /* Block skipped */
 191         {0x06, 0x10, 0x02},
 192         {0x06, 0x64, 0x07},
 193         {0x06, 0x10, 0x08},
 194         {0x06, 0x00, 0x09},
 195         {0x06, 0x00, 0x0a},
 196         {0x06, 0x00, 0x0b},
 197         {0x06, 0x10, 0x0c},
 198         {0x06, 0x00, 0x0d},
 199         {0x06, 0x00, 0x0e},
 200         {0x06, 0x00, 0x0f},
 201         {0x06, 0x10, 0x10},
 202         {0x06, 0x02, 0x11},
 203         {0x06, 0x00, 0x12},
 204         {0x06, 0x04, 0x13},
 205         {0x06, 0x02, 0x14},
 206         {0x06, 0x8a, 0x51},
 207         {0x06, 0x40, 0x52},
 208         {0x06, 0xb6, 0x53},
 209         {0x06, 0x3d, 0x54},
 210         {0x06, 0x60, 0x57},
 211         {0x06, 0x20, 0x58},
 212         {0x06, 0x15, 0x59},
 213         {0x06, 0x05, 0x5a},
 214 
 215         {0x05, 0x01, 0xc0},
 216         {0x05, 0x10, 0xcb},
 217                 {0x05, 0x80, 0xc1},
 218                 /* */
 219                 {0x05, 0x0, 0xc2},
 220                 /* 4 was 0 */
 221         {0x05, 0x00, 0xca},
 222                 {0x05, 0x80, 0xc1},
 223                 /*  */
 224         {0x05, 0x04, 0xc2},
 225         {0x05, 0x00, 0xca},
 226                 {0x05, 0x0, 0xc1},
 227                 /*  */
 228         {0x05, 0x00, 0xc2},
 229         {0x05, 0x00, 0xca},
 230                 {0x05, 0x40, 0xc1},
 231                 /* */
 232         {0x05, 0x17, 0xc2},
 233         {0x05, 0x00, 0xca},
 234                 {0x05, 0x80, 0xc1},
 235                 /* */
 236         {0x05, 0x06, 0xc2},
 237         {0x05, 0x00, 0xca},
 238                 {0x05, 0x80, 0xc1},
 239                 /* */
 240         {0x05, 0x04, 0xc2},
 241         {0x05, 0x00, 0xca},
 242 
 243         {0x03, 0x4c, 0x3},
 244         {0x03, 0x18, 0x1},
 245 
 246         {0x06, 0x70, 0x51},
 247         {0x06, 0xbe, 0x53},
 248         {0x06, 0x71, 0x57},
 249         {0x06, 0x20, 0x58},
 250         {0x06, 0x05, 0x59},
 251         {0x06, 0x15, 0x5a},
 252 
 253         {0x04, 0x00, 0x08},
 254         /* Compress = OFF (0x1 to turn on) */
 255         {0x04, 0x12, 0x09},
 256         {0x04, 0x21, 0x0a},
 257         {0x04, 0x10, 0x0b},
 258         {0x04, 0x21, 0x0c},
 259         {0x04, 0x05, 0x00},
 260         /* was 5 (Image Type ? ) */
 261         {0x04, 0x00, 0x01},
 262 
 263         {0x06, 0x3f, 0x01},
 264 
 265         {0x04, 0x00, 0x04},
 266         {0x04, 0x00, 0x05},
 267         {0x04, 0x40, 0x06},
 268         {0x04, 0x40, 0x07},
 269 
 270         {0x06, 0x1c, 0x17},
 271         {0x06, 0xe2, 0x19},
 272         {0x06, 0x1c, 0x1b},
 273         {0x06, 0xe2, 0x1d},
 274         {0x06, 0xaa, 0x1f},
 275         {0x06, 0x70, 0x20},
 276 
 277         {0x05, 0x01, 0x10},
 278         {0x05, 0x00, 0x11},
 279         {0x05, 0x01, 0x00},
 280         {0x05, 0x05, 0x01},
 281                 {0x05, 0x00, 0xc1},
 282                 /* */
 283         {0x05, 0x00, 0xc2},
 284         {0x05, 0x00, 0xca},
 285 
 286         {0x06, 0x70, 0x51},
 287         {0x06, 0xbe, 0x53},
 288         {}
 289 };
 290 
 291 /*
 292  * Made by Tomasz Zablocki (skalamandra@poczta.onet.pl)
 293  * SPCA505b chip based cameras initialization data
 294  */
 295 /* jfm */
 296 #define initial_brightness 0x7f /* 0x0(white)-0xff(black) */
 297 /* #define initial_brightness 0x0       //0x0(white)-0xff(black) */
 298 /*
 299  * Data to initialize a SPCA505. Common to the CCD and external modes
 300  */
 301 static const u8 spca505b_init_data[][3] = {
 302 /* start */
 303         {0x02, 0x00, 0x00},             /* init */
 304         {0x02, 0x00, 0x01},
 305         {0x02, 0x00, 0x02},
 306         {0x02, 0x00, 0x03},
 307         {0x02, 0x00, 0x04},
 308         {0x02, 0x00, 0x05},
 309         {0x02, 0x00, 0x06},
 310         {0x02, 0x00, 0x07},
 311         {0x02, 0x00, 0x08},
 312         {0x02, 0x00, 0x09},
 313         {0x03, 0x00, 0x00},
 314         {0x03, 0x00, 0x01},
 315         {0x03, 0x00, 0x02},
 316         {0x03, 0x00, 0x03},
 317         {0x03, 0x00, 0x04},
 318         {0x03, 0x00, 0x05},
 319         {0x03, 0x00, 0x06},
 320         {0x04, 0x00, 0x00},
 321         {0x04, 0x00, 0x02},
 322         {0x04, 0x00, 0x04},
 323         {0x04, 0x00, 0x05},
 324         {0x04, 0x00, 0x06},
 325         {0x04, 0x00, 0x07},
 326         {0x04, 0x00, 0x08},
 327         {0x04, 0x00, 0x09},
 328         {0x04, 0x00, 0x0a},
 329         {0x04, 0x00, 0x0b},
 330         {0x04, 0x00, 0x0c},
 331         {0x07, 0x00, 0x00},
 332         {0x07, 0x00, 0x03},
 333         {0x08, 0x00, 0x00},
 334         {0x08, 0x00, 0x01},
 335         {0x08, 0x00, 0x02},
 336         {0x06, 0x18, 0x08},
 337         {0x06, 0xfc, 0x09},
 338         {0x06, 0xfc, 0x0a},
 339         {0x06, 0xfc, 0x0b},
 340         {0x06, 0x18, 0x0c},
 341         {0x06, 0xfc, 0x0d},
 342         {0x06, 0xfc, 0x0e},
 343         {0x06, 0xfc, 0x0f},
 344         {0x06, 0x18, 0x10},
 345         {0x06, 0xfe, 0x12},
 346         {0x06, 0x00, 0x11},
 347         {0x06, 0x00, 0x14},
 348         {0x06, 0x00, 0x13},
 349         {0x06, 0x28, 0x51},
 350         {0x06, 0xff, 0x53},
 351         {0x02, 0x00, 0x08},
 352 
 353         {0x03, 0x00, 0x03},
 354         {0x03, 0x10, 0x03},
 355         {}
 356 };
 357 
 358 /*
 359  * Data to initialize the camera using the internal CCD
 360  */
 361 static const u8 spca505b_open_data_ccd[][3] = {
 362 
 363 /* {0x02,0x00,0x00}, */
 364         {0x03, 0x04, 0x01},             /* rst */
 365         {0x03, 0x00, 0x01},
 366         {0x03, 0x00, 0x00},
 367         {0x03, 0x21, 0x00},
 368         {0x03, 0x00, 0x04},
 369         {0x03, 0x00, 0x03},
 370         {0x03, 0x18, 0x03},
 371         {0x03, 0x08, 0x01},
 372         {0x03, 0x1c, 0x03},
 373         {0x03, 0x5c, 0x03},
 374         {0x03, 0x5c, 0x03},
 375         {0x03, 0x18, 0x01},
 376 
 377 /* same as 505 */
 378         {0x04, 0x10, 0x01},
 379         {0x04, 0x00, 0x04},
 380         {0x04, 0x00, 0x05},
 381         {0x04, 0x20, 0x06},
 382         {0x04, 0x20, 0x07},
 383 
 384         {0x08, 0x0a, 0x00},
 385 
 386         {0x05, 0x00, 0x10},
 387         {0x05, 0x00, 0x11},
 388         {0x05, 0x00, 0x12},
 389         {0x05, 0x6f, 0x00},
 390         {0x05, initial_brightness >> 6, 0x00},
 391         {0x05, (initial_brightness << 2) & 0xff, 0x01},
 392         {0x05, 0x00, 0x02},
 393         {0x05, 0x01, 0x03},
 394         {0x05, 0x00, 0x04},
 395         {0x05, 0x03, 0x05},
 396         {0x05, 0xe0, 0x06},
 397         {0x05, 0x20, 0x07},
 398         {0x05, 0xa0, 0x08},
 399         {0x05, 0x00, 0x12},
 400         {0x05, 0x02, 0x0f},
 401         {0x05, 0x80, 0x14},             /* max exposure off (0=on) */
 402         {0x05, 0x01, 0xb0},
 403         {0x05, 0x01, 0xbf},
 404         {0x03, 0x02, 0x06},
 405         {0x05, 0x10, 0x46},
 406         {0x05, 0x08, 0x4a},
 407 
 408         {0x06, 0x00, 0x01},
 409         {0x06, 0x10, 0x02},
 410         {0x06, 0x64, 0x07},
 411         {0x06, 0x18, 0x08},
 412         {0x06, 0xfc, 0x09},
 413         {0x06, 0xfc, 0x0a},
 414         {0x06, 0xfc, 0x0b},
 415         {0x04, 0x00, 0x01},
 416         {0x06, 0x18, 0x0c},
 417         {0x06, 0xfc, 0x0d},
 418         {0x06, 0xfc, 0x0e},
 419         {0x06, 0xfc, 0x0f},
 420         {0x06, 0x11, 0x10},             /* contrast */
 421         {0x06, 0x00, 0x11},
 422         {0x06, 0xfe, 0x12},
 423         {0x06, 0x00, 0x13},
 424         {0x06, 0x00, 0x14},
 425         {0x06, 0x9d, 0x51},
 426         {0x06, 0x40, 0x52},
 427         {0x06, 0x7c, 0x53},
 428         {0x06, 0x40, 0x54},
 429         {0x06, 0x02, 0x57},
 430         {0x06, 0x03, 0x58},
 431         {0x06, 0x15, 0x59},
 432         {0x06, 0x05, 0x5a},
 433         {0x06, 0x03, 0x56},
 434         {0x06, 0x02, 0x3f},
 435         {0x06, 0x00, 0x40},
 436         {0x06, 0x39, 0x41},
 437         {0x06, 0x69, 0x42},
 438         {0x06, 0x87, 0x43},
 439         {0x06, 0x9e, 0x44},
 440         {0x06, 0xb1, 0x45},
 441         {0x06, 0xbf, 0x46},
 442         {0x06, 0xcc, 0x47},
 443         {0x06, 0xd5, 0x48},
 444         {0x06, 0xdd, 0x49},
 445         {0x06, 0xe3, 0x4a},
 446         {0x06, 0xe8, 0x4b},
 447         {0x06, 0xed, 0x4c},
 448         {0x06, 0xf2, 0x4d},
 449         {0x06, 0xf7, 0x4e},
 450         {0x06, 0xfc, 0x4f},
 451         {0x06, 0xff, 0x50},
 452 
 453         {0x05, 0x01, 0xc0},
 454         {0x05, 0x10, 0xcb},
 455         {0x05, 0x40, 0xc1},
 456         {0x05, 0x04, 0xc2},
 457         {0x05, 0x00, 0xca},
 458         {0x05, 0x40, 0xc1},
 459         {0x05, 0x09, 0xc2},
 460         {0x05, 0x00, 0xca},
 461         {0x05, 0xc0, 0xc1},
 462         {0x05, 0x09, 0xc2},
 463         {0x05, 0x00, 0xca},
 464         {0x05, 0x40, 0xc1},
 465         {0x05, 0x59, 0xc2},
 466         {0x05, 0x00, 0xca},
 467         {0x04, 0x00, 0x01},
 468         {0x05, 0x80, 0xc1},
 469         {0x05, 0xec, 0xc2},
 470         {0x05, 0x0, 0xca},
 471 
 472         {0x06, 0x02, 0x57},
 473         {0x06, 0x01, 0x58},
 474         {0x06, 0x15, 0x59},
 475         {0x06, 0x0a, 0x5a},
 476         {0x06, 0x01, 0x57},
 477         {0x06, 0x8a, 0x03},
 478         {0x06, 0x0a, 0x6c},
 479         {0x06, 0x30, 0x01},
 480         {0x06, 0x20, 0x02},
 481         {0x06, 0x00, 0x03},
 482 
 483         {0x05, 0x8c, 0x25},
 484 
 485         {0x06, 0x4d, 0x51},             /* maybe saturation (4d) */
 486         {0x06, 0x84, 0x53},             /* making green (84) */
 487         {0x06, 0x00, 0x57},             /* sharpness (1) */
 488         {0x06, 0x18, 0x08},
 489         {0x06, 0xfc, 0x09},
 490         {0x06, 0xfc, 0x0a},
 491         {0x06, 0xfc, 0x0b},
 492         {0x06, 0x18, 0x0c},             /* maybe hue (18) */
 493         {0x06, 0xfc, 0x0d},
 494         {0x06, 0xfc, 0x0e},
 495         {0x06, 0xfc, 0x0f},
 496         {0x06, 0x18, 0x10},             /* maybe contrast (18) */
 497 
 498         {0x05, 0x01, 0x02},
 499 
 500         {0x04, 0x00, 0x08},             /* compression */
 501         {0x04, 0x12, 0x09},
 502         {0x04, 0x21, 0x0a},
 503         {0x04, 0x10, 0x0b},
 504         {0x04, 0x21, 0x0c},
 505         {0x04, 0x1d, 0x00},             /* imagetype (1d) */
 506         {0x04, 0x41, 0x01},             /* hardware snapcontrol */
 507 
 508         {0x04, 0x00, 0x04},
 509         {0x04, 0x00, 0x05},
 510         {0x04, 0x10, 0x06},
 511         {0x04, 0x10, 0x07},
 512         {0x04, 0x40, 0x06},
 513         {0x04, 0x40, 0x07},
 514         {0x04, 0x00, 0x04},
 515         {0x04, 0x00, 0x05},
 516 
 517         {0x06, 0x1c, 0x17},
 518         {0x06, 0xe2, 0x19},
 519         {0x06, 0x1c, 0x1b},
 520         {0x06, 0xe2, 0x1d},
 521         {0x06, 0x5f, 0x1f},
 522         {0x06, 0x32, 0x20},
 523 
 524         {0x05, initial_brightness >> 6, 0x00},
 525         {0x05, (initial_brightness << 2) & 0xff, 0x01},
 526         {0x05, 0x06, 0xc1},
 527         {0x05, 0x58, 0xc2},
 528         {0x05, 0x00, 0xca},
 529         {0x05, 0x00, 0x11},
 530         {}
 531 };
 532 
 533 static int reg_write(struct gspca_dev *gspca_dev,
 534                      u16 req, u16 index, u16 value)
 535 {
 536         int ret;
 537         struct usb_device *dev = gspca_dev->dev;
 538 
 539         ret = usb_control_msg(dev,
 540                         usb_sndctrlpipe(dev, 0),
 541                         req,
 542                         USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 543                         value, index, NULL, 0, 500);
 544         gspca_dbg(gspca_dev, D_USBO, "reg write: 0x%02x,0x%02x:0x%02x, %d\n",
 545                   req, index, value, ret);
 546         if (ret < 0)
 547                 pr_err("reg write: error %d\n", ret);
 548         return ret;
 549 }
 550 
 551 /* returns: negative is error, pos or zero is data */
 552 static int reg_read(struct gspca_dev *gspca_dev,
 553                         u16 req,        /* bRequest */
 554                         u16 index)      /* wIndex */
 555 {
 556         int ret;
 557 
 558         ret = usb_control_msg(gspca_dev->dev,
 559                         usb_rcvctrlpipe(gspca_dev->dev, 0),
 560                         req,
 561                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 562                         0,                      /* value */
 563                         index,
 564                         gspca_dev->usb_buf, 2,
 565                         500);                   /* timeout */
 566         if (ret < 0)
 567                 return ret;
 568         return (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0];
 569 }
 570 
 571 static int write_vector(struct gspca_dev *gspca_dev,
 572                         const u8 data[][3])
 573 {
 574         int ret, i = 0;
 575 
 576         while (data[i][0] != 0) {
 577                 ret = reg_write(gspca_dev, data[i][0], data[i][2],
 578                                                                 data[i][1]);
 579                 if (ret < 0)
 580                         return ret;
 581                 i++;
 582         }
 583         return 0;
 584 }
 585 
 586 /* this function is called at probe time */
 587 static int sd_config(struct gspca_dev *gspca_dev,
 588                         const struct usb_device_id *id)
 589 {
 590         struct sd *sd = (struct sd *) gspca_dev;
 591         struct cam *cam;
 592 
 593         cam = &gspca_dev->cam;
 594         cam->cam_mode = vga_mode;
 595         sd->subtype = id->driver_info;
 596         if (sd->subtype != IntelPCCameraPro)
 597                 cam->nmodes = ARRAY_SIZE(vga_mode);
 598         else                    /* no 640x480 for IntelPCCameraPro */
 599                 cam->nmodes = ARRAY_SIZE(vga_mode) - 1;
 600 
 601         return 0;
 602 }
 603 
 604 /* this function is called at probe and resume time */
 605 static int sd_init(struct gspca_dev *gspca_dev)
 606 {
 607         struct sd *sd = (struct sd *) gspca_dev;
 608 
 609         if (write_vector(gspca_dev,
 610                          sd->subtype == Nxultra
 611                                 ? spca505b_init_data
 612                                 : spca505_init_data))
 613                 return -EIO;
 614         return 0;
 615 }
 616 
 617 static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
 618 {
 619         reg_write(gspca_dev, 0x05, 0x00, (255 - brightness) >> 6);
 620         reg_write(gspca_dev, 0x05, 0x01, (255 - brightness) << 2);
 621 }
 622 
 623 static int sd_start(struct gspca_dev *gspca_dev)
 624 {
 625         struct sd *sd = (struct sd *) gspca_dev;
 626         int ret, mode;
 627         static u8 mode_tb[][3] = {
 628         /*        r00   r06   r07       */
 629                 {0x00, 0x10, 0x10},     /* 640x480 */
 630                 {0x01, 0x1a, 0x1a},     /* 352x288 */
 631                 {0x02, 0x1c, 0x1d},     /* 320x240 */
 632                 {0x04, 0x34, 0x34},     /* 176x144 */
 633                 {0x05, 0x40, 0x40}      /* 160x120 */
 634         };
 635 
 636         if (sd->subtype == Nxultra)
 637                 write_vector(gspca_dev, spca505b_open_data_ccd);
 638         else
 639                 write_vector(gspca_dev, spca505_open_data_ccd);
 640         ret = reg_read(gspca_dev, 0x06, 0x16);
 641 
 642         if (ret < 0) {
 643                 gspca_err(gspca_dev, "register read failed err: %d\n", ret);
 644                 return ret;
 645         }
 646         if (ret != 0x0101) {
 647                 pr_err("After vector read returns 0x%04x should be 0x0101\n",
 648                        ret);
 649         }
 650 
 651         ret = reg_write(gspca_dev, 0x06, 0x16, 0x0a);
 652         if (ret < 0)
 653                 return ret;
 654         reg_write(gspca_dev, 0x05, 0xc2, 0x12);
 655 
 656         /* necessary because without it we can see stream
 657          * only once after loading module */
 658         /* stopping usb registers Tomasz change */
 659         reg_write(gspca_dev, 0x02, 0x00, 0x00);
 660 
 661         mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
 662         reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x00, mode_tb[mode][0]);
 663         reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x06, mode_tb[mode][1]);
 664         reg_write(gspca_dev, SPCA50X_REG_COMPRESS, 0x07, mode_tb[mode][2]);
 665 
 666         return reg_write(gspca_dev, SPCA50X_REG_USB,
 667                          SPCA50X_USB_CTRL,
 668                          SPCA50X_CUSB_ENABLE);
 669 }
 670 
 671 static void sd_stopN(struct gspca_dev *gspca_dev)
 672 {
 673         /* Disable ISO packet machine */
 674         reg_write(gspca_dev, 0x02, 0x00, 0x00);
 675 }
 676 
 677 /* called on streamoff with alt 0 and on disconnect */
 678 static void sd_stop0(struct gspca_dev *gspca_dev)
 679 {
 680         if (!gspca_dev->present)
 681                 return;
 682 
 683         /* This maybe reset or power control */
 684         reg_write(gspca_dev, 0x03, 0x03, 0x20);
 685         reg_write(gspca_dev, 0x03, 0x01, 0x00);
 686         reg_write(gspca_dev, 0x03, 0x00, 0x01);
 687         reg_write(gspca_dev, 0x05, 0x10, 0x01);
 688         reg_write(gspca_dev, 0x05, 0x11, 0x0f);
 689 }
 690 
 691 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 692                         u8 *data,                       /* isoc packet */
 693                         int len)                        /* iso packet length */
 694 {
 695         switch (data[0]) {
 696         case 0:                         /* start of frame */
 697                 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
 698                 data += SPCA50X_OFFSET_DATA;
 699                 len -= SPCA50X_OFFSET_DATA;
 700                 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
 701                 break;
 702         case 0xff:                      /* drop */
 703                 break;
 704         default:
 705                 data += 1;
 706                 len -= 1;
 707                 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 708                 break;
 709         }
 710 }
 711 
 712 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
 713 {
 714         struct gspca_dev *gspca_dev =
 715                 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
 716 
 717         gspca_dev->usb_err = 0;
 718 
 719         if (!gspca_dev->streaming)
 720                 return 0;
 721 
 722         switch (ctrl->id) {
 723         case V4L2_CID_BRIGHTNESS:
 724                 setbrightness(gspca_dev, ctrl->val);
 725                 break;
 726         }
 727         return gspca_dev->usb_err;
 728 }
 729 
 730 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
 731         .s_ctrl = sd_s_ctrl,
 732 };
 733 
 734 static int sd_init_controls(struct gspca_dev *gspca_dev)
 735 {
 736         struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
 737 
 738         gspca_dev->vdev.ctrl_handler = hdl;
 739         v4l2_ctrl_handler_init(hdl, 5);
 740         v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
 741                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
 742 
 743         if (hdl->error) {
 744                 pr_err("Could not initialize controls\n");
 745                 return hdl->error;
 746         }
 747         return 0;
 748 }
 749 
 750 /* sub-driver description */
 751 static const struct sd_desc sd_desc = {
 752         .name = MODULE_NAME,
 753         .config = sd_config,
 754         .init_controls = sd_init_controls,
 755         .init = sd_init,
 756         .start = sd_start,
 757         .stopN = sd_stopN,
 758         .stop0 = sd_stop0,
 759         .pkt_scan = sd_pkt_scan,
 760 };
 761 
 762 /* -- module initialisation -- */
 763 static const struct usb_device_id device_table[] = {
 764         {USB_DEVICE(0x041e, 0x401d), .driver_info = Nxultra},
 765         {USB_DEVICE(0x0733, 0x0430), .driver_info = IntelPCCameraPro},
 766 /*fixme: may be UsbGrabberPV321 BRIDGE_SPCA506 SENSOR_SAA7113 */
 767         {}
 768 };
 769 MODULE_DEVICE_TABLE(usb, device_table);
 770 
 771 /* -- device connect -- */
 772 static int sd_probe(struct usb_interface *intf,
 773                         const struct usb_device_id *id)
 774 {
 775         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 776                                 THIS_MODULE);
 777 }
 778 
 779 static struct usb_driver sd_driver = {
 780         .name = MODULE_NAME,
 781         .id_table = device_table,
 782         .probe = sd_probe,
 783         .disconnect = gspca_disconnect,
 784 #ifdef CONFIG_PM
 785         .suspend = gspca_suspend,
 786         .resume = gspca_resume,
 787         .reset_resume = gspca_resume,
 788 #endif
 789 };
 790 
 791 module_usb_driver(sd_driver);
/* [<][>][^][v][top][bottom][index][help] */