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 #include "jpeg.h"
  26
  27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  28 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
  29 MODULE_LICENSE("GPL");
  30
  31 /* controls */
  32 enum e_ctrl {
  33         BRIGHTNESS,
  34         COLORS,
  35         GAMMA,
  36         SHARPNESS,
  37         ILLUM_TOP,
  38         ILLUM_BOT,
  39         NCTRLS          /* number of controls */
  40 };
  41
  42 /* specific webcam descriptor */
  43 struct sd {
  44         struct gspca_dev gspca_dev;     /* !! must be the first item */
  45
  46         struct gspca_ctrl ctrls[NCTRLS];
  47
  48         u8 quality;
  49 #define QUALITY_MIN 40
  50 #define QUALITY_MAX 70
  51 #define QUALITY_DEF 50
  52
  53         u8 jpeg_hdr[JPEG_HDR_SZ];
  54 };
  55
  56 /* V4L2 controls supported by the driver */
  57 static void setbrightness(struct gspca_dev *gspca_dev);
  58 static void setcolors(struct gspca_dev *gspca_dev);
  59 static void setgamma(struct gspca_dev *gspca_dev);
  60 static void setsharpness(struct gspca_dev *gspca_dev);
  61 static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val);
  62 static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val);
  63
  64 static const struct ctrl sd_ctrls[NCTRLS] = {
  65 [BRIGHTNESS] = {
  66             {
  67                 .id      = V4L2_CID_BRIGHTNESS,
  68                 .type    = V4L2_CTRL_TYPE_INTEGER,
  69                 .name    = "Brightness",
  70                 .minimum = 0,
  71                 .maximum = 30,
  72                 .step    = 1,
  73                 .default_value = 15,
  74             },
  75             .set_control = setbrightness
  76         },
  77 [COLORS] = {
  78             {
  79                 .id      = V4L2_CID_SATURATION,
  80                 .type    = V4L2_CTRL_TYPE_INTEGER,
  81                 .name    = "Color",
  82                 .minimum = 1,
  83                 .maximum = 255,
  84                 .step    = 1,
  85                 .default_value = 200,
  86             },
  87             .set_control = setcolors
  88         },
  89 [GAMMA] = {
  90             {
  91                 .id      = V4L2_CID_GAMMA,
  92                 .type    = V4L2_CTRL_TYPE_INTEGER,
  93                 .name    = "Gamma",
  94                 .minimum = 0,
  95                 .maximum = 3,
  96                 .step    = 1,
  97                 .default_value = 1,
  98             },
  99             .set_control = setgamma
 100         },
 101 [SHARPNESS] = {
 102             {
 103                 .id      = V4L2_CID_SHARPNESS,
 104                 .type    = V4L2_CTRL_TYPE_INTEGER,
 105                 .name    = "Sharpness",
 106                 .minimum = 0,
 107                 .maximum = 2,
 108                 .step    = 1,
 109                 .default_value = 1,
 110             },
 111             .set_control = setsharpness
 112         },
 113 [ILLUM_TOP] = {
 114             {
 115                 .id      = V4L2_CID_ILLUMINATORS_1,
 116                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 117                 .name    = "Top illuminator",
 118                 .minimum = 0,
 119                 .maximum = 1,
 120                 .step    = 1,
 121                 .default_value = 0,
 122                 .flags = V4L2_CTRL_FLAG_UPDATE,
 123             },
 124             .set = sd_setilluminator1
 125         },
 126 [ILLUM_BOT] = {
 127             {
 128                 .id      = V4L2_CID_ILLUMINATORS_2,
 129                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 130                 .name    = "Bottom illuminator",
 131                 .minimum = 0,
 132                 .maximum = 1,
 133                 .step    = 1,
 134                 .default_value = 0,
 135                 .flags = V4L2_CTRL_FLAG_UPDATE,
 136             },
 137             .set = sd_setilluminator2
 138         },
 139 };
 140
 141 static const struct v4l2_pix_format vga_mode[] = {
 142         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 143                 .bytesperline = 320,
 144                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 145                 .colorspace = V4L2_COLORSPACE_JPEG,
 146                 .priv = 2},
 147         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 148                 .bytesperline = 640,
 149                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 150                 .colorspace = V4L2_COLORSPACE_JPEG,
 151                 .priv = 1},
 152 };
 153
 154 static const __u8 mi_data[0x20] = {
 155 /*       01    02   03     04    05    06    07    08 */
 156         0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
 157 /*       09    0a   0b     0c    0d    0e    0f    10 */
 158         0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
 159 /*       11    12   13     14    15    16    17    18 */
 160         0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
 161 /*       19    1a   1b     1c    1d    1e    1f    20 */
 162         0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
 163 };
 164
 165 /* write <len> bytes from gspca_dev->usb_buf */
 166 static void reg_w(struct gspca_dev *gspca_dev,
 167                  int len)
 168 {
 169         int alen, ret;
 170
 171         if (gspca_dev->usb_err < 0)
 172                 return;
 173
 174         ret = usb_bulk_msg(gspca_dev->dev,
 175                         usb_sndbulkpipe(gspca_dev->dev, 4),
 176                         gspca_dev->usb_buf,
 177                         len,
 178                         &alen,
 179                         500);   /* timeout in milliseconds */
 180         if (ret < 0) {
 181                 err("reg write [%02x] error %d",
 182                         gspca_dev->usb_buf[0], ret);
 183                 gspca_dev->usb_err = ret;
 184         }
 185 }
 186
 187 static void mi_w(struct gspca_dev *gspca_dev,
 188                  u8 addr,
 189                  u8 value)
 190 {
 191         gspca_dev->usb_buf[0] = 0x1f;
 192         gspca_dev->usb_buf[1] = 0;                      /* control byte */
 193         gspca_dev->usb_buf[2] = addr;
 194         gspca_dev->usb_buf[3] = value;
 195
 196         reg_w(gspca_dev, 4);
 197 }
 198
 199 static void setbrightness(struct gspca_dev *gspca_dev)
 200 {
 201         struct sd *sd = (struct sd *) gspca_dev;
 202
 203         gspca_dev->usb_buf[0] = 0x61;
 204         gspca_dev->usb_buf[1] = sd->ctrls[BRIGHTNESS].val;
 205         reg_w(gspca_dev, 2);
 206 }
 207
 208 static void setcolors(struct gspca_dev *gspca_dev)
 209 {
 210         struct sd *sd = (struct sd *) gspca_dev;
 211         s16 val;
 212
 213         val = sd->ctrls[COLORS].val;
 214         gspca_dev->usb_buf[0] = 0x5f;
 215         gspca_dev->usb_buf[1] = val << 3;
 216         gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04;
 217         reg_w(gspca_dev, 3);
 218 }
 219
 220 static void setgamma(struct gspca_dev *gspca_dev)
 221 {
 222         struct sd *sd = (struct sd *) gspca_dev;
 223
 224         gspca_dev->usb_buf[0] = 0x06;
 225         gspca_dev->usb_buf[1] = sd->ctrls[GAMMA].val * 0x40;
 226         reg_w(gspca_dev, 2);
 227 }
 228
 229 static void setsharpness(struct gspca_dev *gspca_dev)
 230 {
 231         struct sd *sd = (struct sd *) gspca_dev;
 232
 233         gspca_dev->usb_buf[0] = 0x67;
 234         gspca_dev->usb_buf[1] = sd->ctrls[SHARPNESS].val * 4 + 3;
 235         reg_w(gspca_dev, 2);
 236 }
 237
 238 static void setilluminators(struct gspca_dev *gspca_dev)
 239 {
 240         struct sd *sd = (struct sd *) gspca_dev;
 241
 242         gspca_dev->usb_buf[0] = 0x22;
 243         if (sd->ctrls[ILLUM_TOP].val)
 244                 gspca_dev->usb_buf[1] = 0x76;
 245         else if (sd->ctrls[ILLUM_BOT].val)
 246                 gspca_dev->usb_buf[1] = 0x7a;
 247         else
 248                 gspca_dev->usb_buf[1] = 0x7e;
 249         reg_w(gspca_dev, 2);
 250 }
 251
 252 /* this function is called at probe time */
 253 static int sd_config(struct gspca_dev *gspca_dev,
 254                         const struct usb_device_id *id)
 255 {
 256         struct sd *sd = (struct sd *) gspca_dev;
 257         struct cam *cam;
 258
 259         cam = &gspca_dev->cam;
 260         cam->cam_mode = vga_mode;
 261         cam->nmodes = ARRAY_SIZE(vga_mode);
 262         cam->ctrls = sd->ctrls;
 263         sd->quality = QUALITY_DEF;
 264         gspca_dev->nbalt = 9;           /* use the altsetting 08 */
 265         return 0;
 266 }
 267
 268 /* this function is called at probe and resume time */
 269 static int sd_init(struct gspca_dev *gspca_dev)
 270 {
 271         gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);
 272         return 0;
 273 }
 274
 275 static int sd_start(struct gspca_dev *gspca_dev)
 276 {
 277         struct sd *sd = (struct sd *) gspca_dev;
 278         u8 *data;
 279         int i;
 280
 281         /* create the JPEG header */
 282         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
 283                         0x21);          /* JPEG 422 */
 284         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
 285
 286         data = gspca_dev->usb_buf;
 287
 288         data[0] = 0x01;         /* address */
 289         data[1] = 0x01;
 290         reg_w(gspca_dev, 2);
 291
 292         /*
 293            Initialize the MR97113 chip register
 294          */
 295         data[0] = 0x00;         /* address */
 296         data[1] = 0x0c | 0x01;  /* reg 0 */
 297         data[2] = 0x01;         /* reg 1 */
 298         data[3] = gspca_dev->width / 8;         /* h_size , reg 2 */
 299         data[4] = gspca_dev->height / 8;        /* v_size , reg 3 */
 300         data[5] = 0x30;         /* reg 4, MI, PAS5101 :
 301                                  *      0x30 for 24mhz , 0x28 for 12mhz */
 302         data[6] = 0x02;         /* reg 5, H start - was 0x04 */
 303         data[7] = sd->ctrls[GAMMA].val * 0x40;  /* reg 0x06: gamma */
 304         data[8] = 0x01;         /* reg 7, V start - was 0x03 */
 305 /*      if (h_size == 320 ) */
 306 /*              data[9]= 0x56;   * reg 8, 24MHz, 2:1 scale down */
 307 /*      else */
 308         data[9] = 0x52;         /* reg 8, 24MHz, no scale down */
 309 /*jfm: from win trace*/
 310         data[10] = 0x18;
 311
 312         reg_w(gspca_dev, 11);
 313
 314         data[0] = 0x23;         /* address */
 315         data[1] = 0x09;         /* reg 35, append frame header */
 316
 317         reg_w(gspca_dev, 2);
 318
 319         data[0] = 0x3c;         /* address */
 320 /*      if (gspca_dev->width == 1280) */
 321 /*              data[1] = 200;   * reg 60, pc-cam frame size
 322                                  *      (unit: 4KB) 800KB */
 323 /*      else */
 324         data[1] = 50;           /* 50 reg 60, pc-cam frame size
 325                                  *      (unit: 4KB) 200KB */
 326         reg_w(gspca_dev, 2);
 327
 328         /* auto dark-gain */
 329         data[0] = 0x5e;         /* address */
 330         data[1] = 0;            /* reg 94, Y Gain (auto) */
 331 /*jfm: from win trace*/
 332                                 /* reg 0x5f/0x60 (LE) = saturation */
 333                                 /* h (60): xxxx x100
 334                                  * l (5f): xxxx x000 */
 335         data[2] = sd->ctrls[COLORS].val << 3;
 336         data[3] = ((sd->ctrls[COLORS].val >> 2) & 0xf8) | 0x04;
 337         data[4] = sd->ctrls[BRIGHTNESS].val; /* reg 0x61 = brightness */
 338         data[5] = 0x00;
 339
 340         reg_w(gspca_dev, 6);
 341
 342         data[0] = 0x67;
 343 /*jfm: from win trace*/
 344         data[1] = sd->ctrls[SHARPNESS].val * 4 + 3;
 345         data[2] = 0x14;
 346         reg_w(gspca_dev, 3);
 347
 348         data[0] = 0x69;
 349         data[1] = 0x2f;
 350         data[2] = 0x28;
 351         data[3] = 0x42;
 352         reg_w(gspca_dev, 4);
 353
 354         data[0] = 0x63;
 355         data[1] = 0x07;
 356         reg_w(gspca_dev, 2);
 357 /*jfm: win trace - many writes here to reg 0x64*/
 358
 359         /* initialize the MI sensor */
 360         for (i = 0; i < sizeof mi_data; i++)
 361                 mi_w(gspca_dev, i + 1, mi_data[i]);
 362
 363         data[0] = 0x00;
 364         data[1] = 0x4d;         /* ISOC transferring enable... */
 365         reg_w(gspca_dev, 2);
 366
 367         gspca_dev->ctrl_inac = 0; /* activate the illuminator controls */
 368         return gspca_dev->usb_err;
 369 }
 370
 371 static void sd_stopN(struct gspca_dev *gspca_dev)
 372 {
 373         struct sd *sd = (struct sd *) gspca_dev;
 374
 375         gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);
 376         if (sd->ctrls[ILLUM_TOP].val || sd->ctrls[ILLUM_BOT].val) {
 377                 sd->ctrls[ILLUM_TOP].val = 0;
 378                 sd->ctrls[ILLUM_BOT].val = 0;
 379                 setilluminators(gspca_dev);
 380                 msleep(20);
 381         }
 382
 383         gspca_dev->usb_buf[0] = 1;
 384         gspca_dev->usb_buf[1] = 0;
 385         reg_w(gspca_dev, 2);
 386 }
 387
 388 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 389                         u8 *data,                       /* isoc packet */
 390                         int len)                        /* iso packet length */
 391 {
 392         struct sd *sd = (struct sd *) gspca_dev;
 393         int p;
 394
 395         if (len < 6) {
 396 /*              gspca_dev->last_packet_type = DISCARD_PACKET; */
 397                 return;
 398         }
 399         for (p = 0; p < len - 6; p++) {
 400                 if (data[0 + p] == 0xff
 401                     && data[1 + p] == 0xff
 402                     && data[2 + p] == 0x00
 403                     && data[3 + p] == 0xff
 404                     && data[4 + p] == 0x96) {
 405                         if (data[5 + p] == 0x64
 406                             || data[5 + p] == 0x65
 407                             || data[5 + p] == 0x66
 408                             || data[5 + p] == 0x67) {
 409                                 PDEBUG(D_PACK, "sof offset: %d len: %d",
 410                                         p, len);
 411                                 gspca_frame_add(gspca_dev, LAST_PACKET,
 412                                                 data, p);
 413
 414                                 /* put the JPEG header */
 415                                 gspca_frame_add(gspca_dev, FIRST_PACKET,
 416                                         sd->jpeg_hdr, JPEG_HDR_SZ);
 417                                 data += p + 16;
 418                                 len -= p + 16;
 419                                 break;
 420                         }
 421                 }
 422         }
 423         gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 424 }
 425
 426 static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val)
 427 {
 428         struct sd *sd = (struct sd *) gspca_dev;
 429
 430         /* only one illuminator may be on */
 431         sd->ctrls[ILLUM_TOP].val = val;
 432         if (val)
 433                 sd->ctrls[ILLUM_BOT].val = 0;
 434         setilluminators(gspca_dev);
 435         return gspca_dev->usb_err;
 436 }
 437
 438 static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val)
 439 {
 440         struct sd *sd = (struct sd *) gspca_dev;
 441
 442         /* only one illuminator may be on */
 443         sd->ctrls[ILLUM_BOT].val = val;
 444         if (val)
 445                 sd->ctrls[ILLUM_TOP].val = 0;
 446         setilluminators(gspca_dev);
 447         return gspca_dev->usb_err;
 448 }
 449
 450 static int sd_set_jcomp(struct gspca_dev *gspca_dev,
 451                         struct v4l2_jpegcompression *jcomp)
 452 {
 453         struct sd *sd = (struct sd *) gspca_dev;
 454
 455         if (jcomp->quality < QUALITY_MIN)
 456                 sd->quality = QUALITY_MIN;
 457         else if (jcomp->quality > QUALITY_MAX)
 458                 sd->quality = QUALITY_MAX;
 459         else
 460                 sd->quality = jcomp->quality;
 461         if (gspca_dev->streaming)
 462                 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
 463         return 0;
 464 }
 465
 466 static int sd_get_jcomp(struct gspca_dev *gspca_dev,
 467                         struct v4l2_jpegcompression *jcomp)
 468 {
 469         struct sd *sd = (struct sd *) gspca_dev;
 470
 471         memset(jcomp, 0, sizeof *jcomp);
 472         jcomp->quality = sd->quality;
 473         jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
 474                         | V4L2_JPEG_MARKER_DQT;
 475         return 0;
 476 }
 477
 478 /* sub-driver description */
 479 static const struct sd_desc sd_desc = {
 480         .name = MODULE_NAME,
 481         .ctrls = sd_ctrls,
 482         .nctrls = NCTRLS,
 483         .config = sd_config,
 484         .init = sd_init,
 485         .start = sd_start,
 486         .stopN = sd_stopN,
 487         .pkt_scan = sd_pkt_scan,
 488         .get_jcomp = sd_get_jcomp,
 489         .set_jcomp = sd_set_jcomp,
 490 };
 491
 492 /* -- module initialisation -- */
 493 static const struct usb_device_id device_table[] = {
 494         {USB_DEVICE(0x093a, 0x050f)},
 495         {}
 496 };
 497 MODULE_DEVICE_TABLE(usb, device_table);
 498
 499 /* -- device connect -- */
 500 static int sd_probe(struct usb_interface *intf,
 501                         const struct usb_device_id *id)
 502 {
 503         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 504                                 THIS_MODULE);
 505 }
 506
 507 static struct usb_driver sd_driver = {
 508         .name = MODULE_NAME,
 509         .id_table = device_table,
 510         .probe = sd_probe,
 511         .disconnect = gspca_disconnect,
 512 #ifdef CONFIG_PM
 513         .suspend = gspca_suspend,
 514         .resume = gspca_resume,
 515 #endif
 516 };
 517
 518 /* -- module insert / remove -- */
 519 static int __init sd_mod_init(void)
 520 {
 521         return usb_register(&sd_driver);
 522 }
 523 static void __exit sd_mod_exit(void)
 524 {
 525         usb_deregister(&sd_driver);
 526 }
 527
 528 module_init(sd_mod_init);
 529 module_exit(sd_mod_exit);