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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  23
  24 #define MODULE_NAME "mars"
  25
  26 #include "gspca.h"
  27 #include "jpeg.h"
  28
  29 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  30 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
  31 MODULE_LICENSE("GPL");
  32
  33 /* controls */
  34 enum e_ctrl {
  35         BRIGHTNESS,
  36         COLORS,
  37         GAMMA,
  38         SHARPNESS,
  39         ILLUM_TOP,
  40         ILLUM_BOT,
  41         NCTRLS          /* number of controls */
  42 };
  43
  44 /* specific webcam descriptor */
  45 struct sd {
  46         struct gspca_dev gspca_dev;     /* !! must be the first item */
  47
  48         struct gspca_ctrl ctrls[NCTRLS];
  49
  50         u8 quality;
  51 #define QUALITY_MIN 40
  52 #define QUALITY_MAX 70
  53 #define QUALITY_DEF 50
  54
  55         u8 jpeg_hdr[JPEG_HDR_SZ];
  56 };
  57
  58 /* V4L2 controls supported by the driver */
  59 static void setbrightness(struct gspca_dev *gspca_dev);
  60 static void setcolors(struct gspca_dev *gspca_dev);
  61 static void setgamma(struct gspca_dev *gspca_dev);
  62 static void setsharpness(struct gspca_dev *gspca_dev);
  63 static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val);
  64 static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val);
  65
  66 static const struct ctrl sd_ctrls[NCTRLS] = {
  67 [BRIGHTNESS] = {
  68             {
  69                 .id      = V4L2_CID_BRIGHTNESS,
  70                 .type    = V4L2_CTRL_TYPE_INTEGER,
  71                 .name    = "Brightness",
  72                 .minimum = 0,
  73                 .maximum = 30,
  74                 .step    = 1,
  75                 .default_value = 15,
  76             },
  77             .set_control = setbrightness
  78         },
  79 [COLORS] = {
  80             {
  81                 .id      = V4L2_CID_SATURATION,
  82                 .type    = V4L2_CTRL_TYPE_INTEGER,
  83                 .name    = "Color",
  84                 .minimum = 1,
  85                 .maximum = 255,
  86                 .step    = 1,
  87                 .default_value = 200,
  88             },
  89             .set_control = setcolors
  90         },
  91 [GAMMA] = {
  92             {
  93                 .id      = V4L2_CID_GAMMA,
  94                 .type    = V4L2_CTRL_TYPE_INTEGER,
  95                 .name    = "Gamma",
  96                 .minimum = 0,
  97                 .maximum = 3,
  98                 .step    = 1,
  99                 .default_value = 1,
 100             },
 101             .set_control = setgamma
 102         },
 103 [SHARPNESS] = {
 104             {
 105                 .id      = V4L2_CID_SHARPNESS,
 106                 .type    = V4L2_CTRL_TYPE_INTEGER,
 107                 .name    = "Sharpness",
 108                 .minimum = 0,
 109                 .maximum = 2,
 110                 .step    = 1,
 111                 .default_value = 1,
 112             },
 113             .set_control = setsharpness
 114         },
 115 [ILLUM_TOP] = {
 116             {
 117                 .id      = V4L2_CID_ILLUMINATORS_1,
 118                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 119                 .name    = "Top illuminator",
 120                 .minimum = 0,
 121                 .maximum = 1,
 122                 .step    = 1,
 123                 .default_value = 0,
 124                 .flags = V4L2_CTRL_FLAG_UPDATE,
 125             },
 126             .set = sd_setilluminator1
 127         },
 128 [ILLUM_BOT] = {
 129             {
 130                 .id      = V4L2_CID_ILLUMINATORS_2,
 131                 .type    = V4L2_CTRL_TYPE_BOOLEAN,
 132                 .name    = "Bottom illuminator",
 133                 .minimum = 0,
 134                 .maximum = 1,
 135                 .step    = 1,
 136                 .default_value = 0,
 137                 .flags = V4L2_CTRL_FLAG_UPDATE,
 138             },
 139             .set = sd_setilluminator2
 140         },
 141 };
 142
 143 static const struct v4l2_pix_format vga_mode[] = {
 144         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 145                 .bytesperline = 320,
 146                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 147                 .colorspace = V4L2_COLORSPACE_JPEG,
 148                 .priv = 2},
 149         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 150                 .bytesperline = 640,
 151                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 152                 .colorspace = V4L2_COLORSPACE_JPEG,
 153                 .priv = 1},
 154 };
 155
 156 static const __u8 mi_data[0x20] = {
 157 /*       01    02   03     04    05    06    07    08 */
 158         0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
 159 /*       09    0a   0b     0c    0d    0e    0f    10 */
 160         0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
 161 /*       11    12   13     14    15    16    17    18 */
 162         0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
 163 /*       19    1a   1b     1c    1d    1e    1f    20 */
 164         0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
 165 };
 166
 167 /* write <len> bytes from gspca_dev->usb_buf */
 168 static void reg_w(struct gspca_dev *gspca_dev,
 169                  int len)
 170 {
 171         int alen, ret;
 172
 173         if (gspca_dev->usb_err < 0)
 174                 return;
 175
 176         ret = usb_bulk_msg(gspca_dev->dev,
 177                         usb_sndbulkpipe(gspca_dev->dev, 4),
 178                         gspca_dev->usb_buf,
 179                         len,
 180                         &alen,
 181                         500);   /* timeout in milliseconds */
 182         if (ret < 0) {
 183                 pr_err("reg write [%02x] error %d\n",
 184                        gspca_dev->usb_buf[0], ret);
 185                 gspca_dev->usb_err = ret;
 186         }
 187 }
 188
 189 static void mi_w(struct gspca_dev *gspca_dev,
 190                  u8 addr,
 191                  u8 value)
 192 {
 193         gspca_dev->usb_buf[0] = 0x1f;
 194         gspca_dev->usb_buf[1] = 0;                      /* control byte */
 195         gspca_dev->usb_buf[2] = addr;
 196         gspca_dev->usb_buf[3] = value;
 197
 198         reg_w(gspca_dev, 4);
 199 }
 200
 201 static void setbrightness(struct gspca_dev *gspca_dev)
 202 {
 203         struct sd *sd = (struct sd *) gspca_dev;
 204
 205         gspca_dev->usb_buf[0] = 0x61;
 206         gspca_dev->usb_buf[1] = sd->ctrls[BRIGHTNESS].val;
 207         reg_w(gspca_dev, 2);
 208 }
 209
 210 static void setcolors(struct gspca_dev *gspca_dev)
 211 {
 212         struct sd *sd = (struct sd *) gspca_dev;
 213         s16 val;
 214
 215         val = sd->ctrls[COLORS].val;
 216         gspca_dev->usb_buf[0] = 0x5f;
 217         gspca_dev->usb_buf[1] = val << 3;
 218         gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04;
 219         reg_w(gspca_dev, 3);
 220 }
 221
 222 static void setgamma(struct gspca_dev *gspca_dev)
 223 {
 224         struct sd *sd = (struct sd *) gspca_dev;
 225
 226         gspca_dev->usb_buf[0] = 0x06;
 227         gspca_dev->usb_buf[1] = sd->ctrls[GAMMA].val * 0x40;
 228         reg_w(gspca_dev, 2);
 229 }
 230
 231 static void setsharpness(struct gspca_dev *gspca_dev)
 232 {
 233         struct sd *sd = (struct sd *) gspca_dev;
 234
 235         gspca_dev->usb_buf[0] = 0x67;
 236         gspca_dev->usb_buf[1] = sd->ctrls[SHARPNESS].val * 4 + 3;
 237         reg_w(gspca_dev, 2);
 238 }
 239
 240 static void setilluminators(struct gspca_dev *gspca_dev)
 241 {
 242         struct sd *sd = (struct sd *) gspca_dev;
 243
 244         gspca_dev->usb_buf[0] = 0x22;
 245         if (sd->ctrls[ILLUM_TOP].val)
 246                 gspca_dev->usb_buf[1] = 0x76;
 247         else if (sd->ctrls[ILLUM_BOT].val)
 248                 gspca_dev->usb_buf[1] = 0x7a;
 249         else
 250                 gspca_dev->usb_buf[1] = 0x7e;
 251         reg_w(gspca_dev, 2);
 252 }
 253
 254 /* this function is called at probe time */
 255 static int sd_config(struct gspca_dev *gspca_dev,
 256                         const struct usb_device_id *id)
 257 {
 258         struct sd *sd = (struct sd *) gspca_dev;
 259         struct cam *cam;
 260
 261         cam = &gspca_dev->cam;
 262         cam->cam_mode = vga_mode;
 263         cam->nmodes = ARRAY_SIZE(vga_mode);
 264         cam->ctrls = sd->ctrls;
 265         sd->quality = QUALITY_DEF;
 266         gspca_dev->nbalt = 9;           /* use the altsetting 08 */
 267         return 0;
 268 }
 269
 270 /* this function is called at probe and resume time */
 271 static int sd_init(struct gspca_dev *gspca_dev)
 272 {
 273         gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);
 274         return 0;
 275 }
 276
 277 static int sd_start(struct gspca_dev *gspca_dev)
 278 {
 279         struct sd *sd = (struct sd *) gspca_dev;
 280         u8 *data;
 281         int i;
 282
 283         /* create the JPEG header */
 284         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
 285                         0x21);          /* JPEG 422 */
 286         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
 287
 288         data = gspca_dev->usb_buf;
 289
 290         data[0] = 0x01;         /* address */
 291         data[1] = 0x01;
 292         reg_w(gspca_dev, 2);
 293
 294         /*
 295            Initialize the MR97113 chip register
 296          */
 297         data[0] = 0x00;         /* address */
 298         data[1] = 0x0c | 0x01;  /* reg 0 */
 299         data[2] = 0x01;         /* reg 1 */
 300         data[3] = gspca_dev->width / 8;         /* h_size , reg 2 */
 301         data[4] = gspca_dev->height / 8;        /* v_size , reg 3 */
 302         data[5] = 0x30;         /* reg 4, MI, PAS5101 :
 303                                  *      0x30 for 24mhz , 0x28 for 12mhz */
 304         data[6] = 0x02;         /* reg 5, H start - was 0x04 */
 305         data[7] = sd->ctrls[GAMMA].val * 0x40;  /* reg 0x06: gamma */
 306         data[8] = 0x01;         /* reg 7, V start - was 0x03 */
 307 /*      if (h_size == 320 ) */
 308 /*              data[9]= 0x56;   * reg 8, 24MHz, 2:1 scale down */
 309 /*      else */
 310         data[9] = 0x52;         /* reg 8, 24MHz, no scale down */
 311 /*jfm: from win trace*/
 312         data[10] = 0x18;
 313
 314         reg_w(gspca_dev, 11);
 315
 316         data[0] = 0x23;         /* address */
 317         data[1] = 0x09;         /* reg 35, append frame header */
 318
 319         reg_w(gspca_dev, 2);
 320
 321         data[0] = 0x3c;         /* address */
 322 /*      if (gspca_dev->width == 1280) */
 323 /*              data[1] = 200;   * reg 60, pc-cam frame size
 324                                  *      (unit: 4KB) 800KB */
 325 /*      else */
 326         data[1] = 50;           /* 50 reg 60, pc-cam frame size
 327                                  *      (unit: 4KB) 200KB */
 328         reg_w(gspca_dev, 2);
 329
 330         /* auto dark-gain */
 331         data[0] = 0x5e;         /* address */
 332         data[1] = 0;            /* reg 94, Y Gain (auto) */
 333 /*jfm: from win trace*/
 334                                 /* reg 0x5f/0x60 (LE) = saturation */
 335                                 /* h (60): xxxx x100
 336                                  * l (5f): xxxx x000 */
 337         data[2] = sd->ctrls[COLORS].val << 3;
 338         data[3] = ((sd->ctrls[COLORS].val >> 2) & 0xf8) | 0x04;
 339         data[4] = sd->ctrls[BRIGHTNESS].val; /* reg 0x61 = brightness */
 340         data[5] = 0x00;
 341
 342         reg_w(gspca_dev, 6);
 343
 344         data[0] = 0x67;
 345 /*jfm: from win trace*/
 346         data[1] = sd->ctrls[SHARPNESS].val * 4 + 3;
 347         data[2] = 0x14;
 348         reg_w(gspca_dev, 3);
 349
 350         data[0] = 0x69;
 351         data[1] = 0x2f;
 352         data[2] = 0x28;
 353         data[3] = 0x42;
 354         reg_w(gspca_dev, 4);
 355
 356         data[0] = 0x63;
 357         data[1] = 0x07;
 358         reg_w(gspca_dev, 2);
 359 /*jfm: win trace - many writes here to reg 0x64*/
 360
 361         /* initialize the MI sensor */
 362         for (i = 0; i < sizeof mi_data; i++)
 363                 mi_w(gspca_dev, i + 1, mi_data[i]);
 364
 365         data[0] = 0x00;
 366         data[1] = 0x4d;         /* ISOC transferring enable... */
 367         reg_w(gspca_dev, 2);
 368
 369         gspca_dev->ctrl_inac = 0; /* activate the illuminator controls */
 370         return gspca_dev->usb_err;
 371 }
 372
 373 static void sd_stopN(struct gspca_dev *gspca_dev)
 374 {
 375         struct sd *sd = (struct sd *) gspca_dev;
 376
 377         gspca_dev->ctrl_inac = (1 << ILLUM_TOP) | (1 << ILLUM_BOT);
 378         if (sd->ctrls[ILLUM_TOP].val || sd->ctrls[ILLUM_BOT].val) {
 379                 sd->ctrls[ILLUM_TOP].val = 0;
 380                 sd->ctrls[ILLUM_BOT].val = 0;
 381                 setilluminators(gspca_dev);
 382                 msleep(20);
 383         }
 384
 385         gspca_dev->usb_buf[0] = 1;
 386         gspca_dev->usb_buf[1] = 0;
 387         reg_w(gspca_dev, 2);
 388 }
 389
 390 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 391                         u8 *data,                       /* isoc packet */
 392                         int len)                        /* iso packet length */
 393 {
 394         struct sd *sd = (struct sd *) gspca_dev;
 395         int p;
 396
 397         if (len < 6) {
 398 /*              gspca_dev->last_packet_type = DISCARD_PACKET; */
 399                 return;
 400         }
 401         for (p = 0; p < len - 6; p++) {
 402                 if (data[0 + p] == 0xff
 403                     && data[1 + p] == 0xff
 404                     && data[2 + p] == 0x00
 405                     && data[3 + p] == 0xff
 406                     && data[4 + p] == 0x96) {
 407                         if (data[5 + p] == 0x64
 408                             || data[5 + p] == 0x65
 409                             || data[5 + p] == 0x66
 410                             || data[5 + p] == 0x67) {
 411                                 PDEBUG(D_PACK, "sof offset: %d len: %d",
 412                                         p, len);
 413                                 gspca_frame_add(gspca_dev, LAST_PACKET,
 414                                                 data, p);
 415
 416                                 /* put the JPEG header */
 417                                 gspca_frame_add(gspca_dev, FIRST_PACKET,
 418                                         sd->jpeg_hdr, JPEG_HDR_SZ);
 419                                 data += p + 16;
 420                                 len -= p + 16;
 421                                 break;
 422                         }
 423                 }
 424         }
 425         gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 426 }
 427
 428 static int sd_setilluminator1(struct gspca_dev *gspca_dev, __s32 val)
 429 {
 430         struct sd *sd = (struct sd *) gspca_dev;
 431
 432         /* only one illuminator may be on */
 433         sd->ctrls[ILLUM_TOP].val = val;
 434         if (val)
 435                 sd->ctrls[ILLUM_BOT].val = 0;
 436         setilluminators(gspca_dev);
 437         return gspca_dev->usb_err;
 438 }
 439
 440 static int sd_setilluminator2(struct gspca_dev *gspca_dev, __s32 val)
 441 {
 442         struct sd *sd = (struct sd *) gspca_dev;
 443
 444         /* only one illuminator may be on */
 445         sd->ctrls[ILLUM_BOT].val = val;
 446         if (val)
 447                 sd->ctrls[ILLUM_TOP].val = 0;
 448         setilluminators(gspca_dev);
 449         return gspca_dev->usb_err;
 450 }
 451
 452 static int sd_set_jcomp(struct gspca_dev *gspca_dev,
 453                         struct v4l2_jpegcompression *jcomp)
 454 {
 455         struct sd *sd = (struct sd *) gspca_dev;
 456
 457         if (jcomp->quality < QUALITY_MIN)
 458                 sd->quality = QUALITY_MIN;
 459         else if (jcomp->quality > QUALITY_MAX)
 460                 sd->quality = QUALITY_MAX;
 461         else
 462                 sd->quality = jcomp->quality;
 463         if (gspca_dev->streaming)
 464                 jpeg_set_qual(sd->jpeg_hdr, sd->quality);
 465         return 0;
 466 }
 467
 468 static int sd_get_jcomp(struct gspca_dev *gspca_dev,
 469                         struct v4l2_jpegcompression *jcomp)
 470 {
 471         struct sd *sd = (struct sd *) gspca_dev;
 472
 473         memset(jcomp, 0, sizeof *jcomp);
 474         jcomp->quality = sd->quality;
 475         jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
 476                         | V4L2_JPEG_MARKER_DQT;
 477         return 0;
 478 }
 479
 480 /* sub-driver description */
 481 static const struct sd_desc sd_desc = {
 482         .name = MODULE_NAME,
 483         .ctrls = sd_ctrls,
 484         .nctrls = NCTRLS,
 485         .config = sd_config,
 486         .init = sd_init,
 487         .start = sd_start,
 488         .stopN = sd_stopN,
 489         .pkt_scan = sd_pkt_scan,
 490         .get_jcomp = sd_get_jcomp,
 491         .set_jcomp = sd_set_jcomp,
 492 };
 493
 494 /* -- module initialisation -- */
 495 static const struct usb_device_id device_table[] = {
 496         {USB_DEVICE(0x093a, 0x050f)},
 497         {}
 498 };
 499 MODULE_DEVICE_TABLE(usb, device_table);
 500
 501 /* -- device connect -- */
 502 static int sd_probe(struct usb_interface *intf,
 503                         const struct usb_device_id *id)
 504 {
 505         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 506                                 THIS_MODULE);
 507 }
 508
 509 static struct usb_driver sd_driver = {
 510         .name = MODULE_NAME,
 511         .id_table = device_table,
 512         .probe = sd_probe,
 513         .disconnect = gspca_disconnect,
 514 #ifdef CONFIG_PM
 515         .suspend = gspca_suspend,
 516         .resume = gspca_resume,
 517 #endif
 518 };
 519
 520 /* -- module insert / remove -- */
 521 static int __init sd_mod_init(void)
 522 {
 523         return usb_register(&sd_driver);
 524 }
 525 static void __exit sd_mod_exit(void)
 526 {
 527         usb_deregister(&sd_driver);
 528 }
 529
 530 module_init(sd_mod_init);
 531 module_exit(sd_mod_exit);