drivers/media/video/gspca/mars.c

   1 /*
   2  *              Mars-Semi MR97311A library
   3  *              Copyright (C) 2005 <bradlch@hotmail.com>
   4  *
   5  * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21
  22 #define MODULE_NAME "mars"
  23
  24 #include "gspca.h"
  25 #define QUANT_VAL 1             /* quantization table */
  26 #include "jpeg.h"
  27
  28 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  29 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
  30 MODULE_LICENSE("GPL");
  31
  32 /* specific webcam descriptor */
  33 struct sd {
  34         struct gspca_dev gspca_dev;     /* !! must be the first item */
  35
  36         u8 brightness;
  37         u8 colors;
  38         u8 gamma;
  39         u8 sharpness;
  40 };
  41
  42 /* V4L2 controls supported by the driver */
  43 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  44 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  45 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
  46 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
  47 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val);
  48 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val);
  49 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
  50 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
  51
  52 static struct ctrl sd_ctrls[] = {
  53         {
  54             {
  55                 .id      = V4L2_CID_BRIGHTNESS,
  56                 .type    = V4L2_CTRL_TYPE_INTEGER,
  57                 .name    = "Brightness",
  58                 .minimum = 0,
  59                 .maximum = 30,
  60                 .step    = 1,
  61 #define BRIGHTNESS_DEF 15
  62                 .default_value = BRIGHTNESS_DEF,
  63             },
  64             .set = sd_setbrightness,
  65             .get = sd_getbrightness,
  66         },
  67         {
  68             {
  69                 .id      = V4L2_CID_SATURATION,
  70                 .type    = V4L2_CTRL_TYPE_INTEGER,
  71                 .name    = "Color",
  72                 .minimum = 0,
  73                 .maximum = 220,
  74                 .step    = 1,
  75 #define COLOR_DEF 190
  76                 .default_value = COLOR_DEF,
  77             },
  78             .set = sd_setcolors,
  79             .get = sd_getcolors,
  80         },
  81         {
  82             {
  83                 .id      = V4L2_CID_GAMMA,
  84                 .type    = V4L2_CTRL_TYPE_INTEGER,
  85                 .name    = "Gamma",
  86                 .minimum = 0,
  87                 .maximum = 3,
  88                 .step    = 1,
  89 #define GAMMA_DEF 1
  90                 .default_value = GAMMA_DEF,
  91             },
  92             .set = sd_setgamma,
  93             .get = sd_getgamma,
  94         },
  95         {
  96             {
  97                 .id      = V4L2_CID_SHARPNESS,
  98                 .type    = V4L2_CTRL_TYPE_INTEGER,
  99                 .name    = "Sharpness",
 100                 .minimum = 0,
 101                 .maximum = 2,
 102                 .step    = 1,
 103 #define SHARPNESS_DEF 1
 104                 .default_value = SHARPNESS_DEF,
 105             },
 106             .set = sd_setsharpness,
 107             .get = sd_getsharpness,
 108         },
 109 };
 110
 111 static const struct v4l2_pix_format vga_mode[] = {
 112         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 113                 .bytesperline = 320,
 114                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 115                 .colorspace = V4L2_COLORSPACE_JPEG,
 116                 .priv = 2},
 117         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 118                 .bytesperline = 640,
 119                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 120                 .colorspace = V4L2_COLORSPACE_JPEG,
 121                 .priv = 1},
 122 };
 123
 124 static const __u8 mi_data[0x20] = {
 125 /*       01    02   03     04    05    06    07    08 */
 126         0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
 127 /*       09    0a   0b     0c    0d    0e    0f    10 */
 128         0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
 129 /*       11    12   13     14    15    16    17    18 */
 130         0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
 131 /*       19    1a   1b     1c    1d    1e    1f    20 */
 132         0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
 133 };
 134
 135 /* write <len> bytes from gspca_dev->usb_buf */
 136 static int reg_w(struct gspca_dev *gspca_dev,
 137                  int len)
 138 {
 139         int alen, ret;
 140
 141         ret = usb_bulk_msg(gspca_dev->dev,
 142                         usb_sndbulkpipe(gspca_dev->dev, 4),
 143                         gspca_dev->usb_buf,
 144                         len,
 145                         &alen,
 146                         500);   /* timeout in milliseconds */
 147         if (ret < 0)
 148                 PDEBUG(D_ERR, "reg write [%02x] error %d",
 149                         gspca_dev->usb_buf[0], ret);
 150         return ret;
 151 }
 152
 153 static void mi_w(struct gspca_dev *gspca_dev,
 154                  u8 addr,
 155                  u8 value)
 156 {
 157         gspca_dev->usb_buf[0] = 0x1f;
 158         gspca_dev->usb_buf[1] = 0;                      /* control byte */
 159         gspca_dev->usb_buf[2] = addr;
 160         gspca_dev->usb_buf[3] = value;
 161
 162         reg_w(gspca_dev, 4);
 163 }
 164
 165 /* this function is called at probe time */
 166 static int sd_config(struct gspca_dev *gspca_dev,
 167                         const struct usb_device_id *id)
 168 {
 169         struct sd *sd = (struct sd *) gspca_dev;
 170         struct cam *cam;
 171
 172         cam = &gspca_dev->cam;
 173         cam->cam_mode = vga_mode;
 174         cam->nmodes = ARRAY_SIZE(vga_mode);
 175         sd->brightness = BRIGHTNESS_DEF;
 176         sd->colors = COLOR_DEF;
 177         sd->gamma = GAMMA_DEF;
 178         sd->sharpness = SHARPNESS_DEF;
 179         gspca_dev->nbalt = 9;           /* use the altsetting 08 */
 180         return 0;
 181 }
 182
 183 /* this function is called at probe and resume time */
 184 static int sd_init(struct gspca_dev *gspca_dev)
 185 {
 186         return 0;
 187 }
 188
 189 static int sd_start(struct gspca_dev *gspca_dev)
 190 {
 191         struct sd *sd = (struct sd *) gspca_dev;
 192         int err_code;
 193         u8 *data;
 194         int i, val;
 195
 196         data = gspca_dev->usb_buf;
 197
 198         data[0] = 0x01;         /* address */
 199         data[1] = 0x01;
 200         err_code = reg_w(gspca_dev, 2);
 201         if (err_code < 0)
 202                 return err_code;
 203
 204         /*
 205            Initialize the MR97113 chip register
 206          */
 207         data[0] = 0x00;         /* address */
 208         data[1] = 0x0c | 0x01;  /* reg 0 */
 209         data[2] = 0x01;         /* reg 1 */
 210         data[3] = gspca_dev->width / 8;         /* h_size , reg 2 */
 211         data[4] = gspca_dev->height / 8;        /* v_size , reg 3 */
 212         data[5] = 0x30;         /* reg 4, MI, PAS5101 :
 213                                  *      0x30 for 24mhz , 0x28 for 12mhz */
 214         data[6] = 0x02;         /* reg 5, H start - was 0x04 */
 215         data[7] = sd->gamma * 0x40;     /* reg 0x06: gamma */
 216         data[8] = 0x01;         /* reg 7, V start - was 0x03 */
 217 /*      if (h_size == 320 ) */
 218 /*              data[9]= 0x56;   * reg 8, 24MHz, 2:1 scale down */
 219 /*      else */
 220         data[9] = 0x52;         /* reg 8, 24MHz, no scale down */
 221 /*jfm: from win trace*/
 222         data[10] = 0x18;
 223
 224         err_code = reg_w(gspca_dev, 11);
 225         if (err_code < 0)
 226                 return err_code;
 227
 228         data[0] = 0x23;         /* address */
 229         data[1] = 0x09;         /* reg 35, append frame header */
 230
 231         err_code = reg_w(gspca_dev, 2);
 232         if (err_code < 0)
 233                 return err_code;
 234
 235         data[0] = 0x3c;         /* address */
 236 /*      if (gspca_dev->width == 1280) */
 237 /*              data[1] = 200;   * reg 60, pc-cam frame size
 238                                  *      (unit: 4KB) 800KB */
 239 /*      else */
 240         data[1] = 50;           /* 50 reg 60, pc-cam frame size
 241                                  *      (unit: 4KB) 200KB */
 242         err_code = reg_w(gspca_dev, 2);
 243         if (err_code < 0)
 244                 return err_code;
 245
 246         /* auto dark-gain */
 247         data[0] = 0x5e;         /* address */
 248         data[1] = 0;            /* reg 94, Y Gain (auto) */
 249 /*jfm: from win trace*/
 250         val = sd->colors * 0x40 + 0x400;
 251         data[2] = val;          /* reg 0x5f/0x60 (LE) = saturation */
 252         data[3] = val >> 8;
 253         data[4] = sd->brightness; /* reg 0x61 = brightness */
 254         data[5] = 0x00;
 255
 256         err_code = reg_w(gspca_dev, 6);
 257         if (err_code < 0)
 258                 return err_code;
 259
 260         data[0] = 0x67;
 261 /*jfm: from win trace*/
 262         data[1] = sd->sharpness * 4 + 3;
 263         data[2] = 0x14;
 264         err_code = reg_w(gspca_dev, 3);
 265         if (err_code < 0)
 266                 return err_code;
 267
 268         data[0] = 0x69;
 269         data[1] = 0x2f;
 270         data[2] = 0x28;
 271         data[3] = 0x42;
 272         err_code = reg_w(gspca_dev, 4);
 273         if (err_code < 0)
 274                 return err_code;
 275
 276         data[0] = 0x63;
 277         data[1] = 0x07;
 278         err_code = reg_w(gspca_dev, 2);
 279 /*jfm: win trace - many writes here to reg 0x64*/
 280         if (err_code < 0)
 281                 return err_code;
 282
 283         /* initialize the MI sensor */
 284         for (i = 0; i < sizeof mi_data; i++)
 285                 mi_w(gspca_dev, i + 1, mi_data[i]);
 286
 287         data[0] = 0x00;
 288         data[1] = 0x4d;         /* ISOC transfering enable... */
 289         reg_w(gspca_dev, 2);
 290         return 0;
 291 }
 292
 293 static void sd_stopN(struct gspca_dev *gspca_dev)
 294 {
 295         int result;
 296
 297         gspca_dev->usb_buf[0] = 1;
 298         gspca_dev->usb_buf[1] = 0;
 299         result = reg_w(gspca_dev, 2);
 300         if (result < 0)
 301                 PDEBUG(D_ERR, "Camera Stop failed");
 302 }
 303
 304 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 305                         struct gspca_frame *frame,      /* target */
 306                         __u8 *data,                     /* isoc packet */
 307                         int len)                        /* iso packet length */
 308 {
 309         int p;
 310
 311         if (len < 6) {
 312 /*              gspca_dev->last_packet_type = DISCARD_PACKET; */
 313                 return;
 314         }
 315         for (p = 0; p < len - 6; p++) {
 316                 if (data[0 + p] == 0xff
 317                     && data[1 + p] == 0xff
 318                     && data[2 + p] == 0x00
 319                     && data[3 + p] == 0xff
 320                     && data[4 + p] == 0x96) {
 321                         if (data[5 + p] == 0x64
 322                             || data[5 + p] == 0x65
 323                             || data[5 + p] == 0x66
 324                             || data[5 + p] == 0x67) {
 325                                 PDEBUG(D_PACK, "sof offset: %d len: %d",
 326                                         p, len);
 327                                 frame = gspca_frame_add(gspca_dev, LAST_PACKET,
 328                                                         frame, data, p);
 329
 330                                 /* put the JPEG header */
 331                                 jpeg_put_header(gspca_dev, frame, 0x21);
 332                                 data += p + 16;
 333                                 len -= p + 16;
 334                                 break;
 335                         }
 336                 }
 337         }
 338         gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
 339 }
 340
 341 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 342 {
 343         struct sd *sd = (struct sd *) gspca_dev;
 344
 345         sd->brightness = val;
 346         if (gspca_dev->streaming) {
 347                 gspca_dev->usb_buf[0] = 0x61;
 348                 gspca_dev->usb_buf[1] = val;
 349                 reg_w(gspca_dev, 2);
 350         }
 351         return 0;
 352 }
 353
 354 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 355 {
 356         struct sd *sd = (struct sd *) gspca_dev;
 357
 358         *val = sd->brightness;
 359         return 0;
 360 }
 361
 362 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
 363 {
 364         struct sd *sd = (struct sd *) gspca_dev;
 365
 366         sd->colors = val;
 367         if (gspca_dev->streaming) {
 368                 val = val * 0x40 + 0x400;
 369                 gspca_dev->usb_buf[0] = 0x5f;
 370                 gspca_dev->usb_buf[1] = val;
 371                 gspca_dev->usb_buf[2] = val >> 8;
 372                 reg_w(gspca_dev, 3);
 373         }
 374         return 0;
 375 }
 376
 377 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
 378 {
 379         struct sd *sd = (struct sd *) gspca_dev;
 380
 381         *val = sd->colors;
 382         return 0;
 383 }
 384
 385 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val)
 386 {
 387         struct sd *sd = (struct sd *) gspca_dev;
 388
 389         sd->gamma = val;
 390         if (gspca_dev->streaming) {
 391                 gspca_dev->usb_buf[0] = 0x06;
 392                 gspca_dev->usb_buf[1] = val * 0x40;
 393                 reg_w(gspca_dev, 2);
 394         }
 395         return 0;
 396 }
 397
 398 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val)
 399 {
 400         struct sd *sd = (struct sd *) gspca_dev;
 401
 402         *val = sd->gamma;
 403         return 0;
 404 }
 405
 406 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
 407 {
 408         struct sd *sd = (struct sd *) gspca_dev;
 409
 410         sd->sharpness = val;
 411         if (gspca_dev->streaming) {
 412                 gspca_dev->usb_buf[0] = 0x67;
 413                 gspca_dev->usb_buf[1] = val * 4 + 3;
 414                 reg_w(gspca_dev, 2);
 415         }
 416         return 0;
 417 }
 418
 419 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
 420 {
 421         struct sd *sd = (struct sd *) gspca_dev;
 422
 423         *val = sd->sharpness;
 424         return 0;
 425 }
 426
 427 /* sub-driver description */
 428 static const struct sd_desc sd_desc = {
 429         .name = MODULE_NAME,
 430         .ctrls = sd_ctrls,
 431         .nctrls = ARRAY_SIZE(sd_ctrls),
 432         .config = sd_config,
 433         .init = sd_init,
 434         .start = sd_start,
 435         .stopN = sd_stopN,
 436         .pkt_scan = sd_pkt_scan,
 437 };
 438
 439 /* -- module initialisation -- */
 440 static const __devinitdata struct usb_device_id device_table[] = {
 441         {USB_DEVICE(0x093a, 0x050f)},
 442         {}
 443 };
 444 MODULE_DEVICE_TABLE(usb, device_table);
 445
 446 /* -- device connect -- */
 447 static int sd_probe(struct usb_interface *intf,
 448                         const struct usb_device_id *id)
 449 {
 450         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 451                                 THIS_MODULE);
 452 }
 453
 454 static struct usb_driver sd_driver = {
 455         .name = MODULE_NAME,
 456         .id_table = device_table,
 457         .probe = sd_probe,
 458         .disconnect = gspca_disconnect,
 459 #ifdef CONFIG_PM
 460         .suspend = gspca_suspend,
 461         .resume = gspca_resume,
 462 #endif
 463 };
 464
 465 /* -- module insert / remove -- */
 466 static int __init sd_mod_init(void)
 467 {
 468         int ret;
 469
 470         ret = usb_register(&sd_driver);
 471         if (ret < 0)
 472                 return ret;
 473         PDEBUG(D_PROBE, "registered");
 474         return 0;
 475 }
 476 static void __exit sd_mod_exit(void)
 477 {
 478         usb_deregister(&sd_driver);
 479         PDEBUG(D_PROBE, "deregistered");
 480 }
 481
 482 module_init(sd_mod_init);
 483 module_exit(sd_mod_exit);