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 /* specific webcam descriptor */
  32 struct sd {
  33         struct gspca_dev gspca_dev;     /* !! must be the first item */
  34
  35         u8 brightness;
  36         u8 colors;
  37         u8 gamma;
  38         u8 sharpness;
  39         u8 quality;
  40 #define QUALITY_MIN 40
  41 #define QUALITY_MAX 70
  42 #define QUALITY_DEF 50
  43
  44         u8 *jpeg_hdr;
  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_setcolors(struct gspca_dev *gspca_dev, __s32 val);
  51 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
  52 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val);
  53 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val);
  54 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
  55 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
  56
  57 static struct ctrl sd_ctrls[] = {
  58         {
  59             {
  60                 .id      = V4L2_CID_BRIGHTNESS,
  61                 .type    = V4L2_CTRL_TYPE_INTEGER,
  62                 .name    = "Brightness",
  63                 .minimum = 0,
  64                 .maximum = 30,
  65                 .step    = 1,
  66 #define BRIGHTNESS_DEF 15
  67                 .default_value = BRIGHTNESS_DEF,
  68             },
  69             .set = sd_setbrightness,
  70             .get = sd_getbrightness,
  71         },
  72         {
  73             {
  74                 .id      = V4L2_CID_SATURATION,
  75                 .type    = V4L2_CTRL_TYPE_INTEGER,
  76                 .name    = "Color",
  77                 .minimum = 1,
  78                 .maximum = 255,
  79                 .step    = 1,
  80 #define COLOR_DEF 200
  81                 .default_value = COLOR_DEF,
  82             },
  83             .set = sd_setcolors,
  84             .get = sd_getcolors,
  85         },
  86         {
  87             {
  88                 .id      = V4L2_CID_GAMMA,
  89                 .type    = V4L2_CTRL_TYPE_INTEGER,
  90                 .name    = "Gamma",
  91                 .minimum = 0,
  92                 .maximum = 3,
  93                 .step    = 1,
  94 #define GAMMA_DEF 1
  95                 .default_value = GAMMA_DEF,
  96             },
  97             .set = sd_setgamma,
  98             .get = sd_getgamma,
  99         },
 100         {
 101             {
 102                 .id      = V4L2_CID_SHARPNESS,
 103                 .type    = V4L2_CTRL_TYPE_INTEGER,
 104                 .name    = "Sharpness",
 105                 .minimum = 0,
 106                 .maximum = 2,
 107                 .step    = 1,
 108 #define SHARPNESS_DEF 1
 109                 .default_value = SHARPNESS_DEF,
 110             },
 111             .set = sd_setsharpness,
 112             .get = sd_getsharpness,
 113         },
 114 };
 115
 116 static const struct v4l2_pix_format vga_mode[] = {
 117         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 118                 .bytesperline = 320,
 119                 .sizeimage = 320 * 240 * 3 / 8 + 590,
 120                 .colorspace = V4L2_COLORSPACE_JPEG,
 121                 .priv = 2},
 122         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
 123                 .bytesperline = 640,
 124                 .sizeimage = 640 * 480 * 3 / 8 + 590,
 125                 .colorspace = V4L2_COLORSPACE_JPEG,
 126                 .priv = 1},
 127 };
 128
 129 static const __u8 mi_data[0x20] = {
 130 /*       01    02   03     04    05    06    07    08 */
 131         0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
 132 /*       09    0a   0b     0c    0d    0e    0f    10 */
 133         0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
 134 /*       11    12   13     14    15    16    17    18 */
 135         0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
 136 /*       19    1a   1b     1c    1d    1e    1f    20 */
 137         0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
 138 };
 139
 140 /* write <len> bytes from gspca_dev->usb_buf */
 141 static int reg_w(struct gspca_dev *gspca_dev,
 142                  int len)
 143 {
 144         int alen, ret;
 145
 146         ret = usb_bulk_msg(gspca_dev->dev,
 147                         usb_sndbulkpipe(gspca_dev->dev, 4),
 148                         gspca_dev->usb_buf,
 149                         len,
 150                         &alen,
 151                         500);   /* timeout in milliseconds */
 152         if (ret < 0)
 153                 PDEBUG(D_ERR, "reg write [%02x] error %d",
 154                         gspca_dev->usb_buf[0], ret);
 155         return ret;
 156 }
 157
 158 static void mi_w(struct gspca_dev *gspca_dev,
 159                  u8 addr,
 160                  u8 value)
 161 {
 162         gspca_dev->usb_buf[0] = 0x1f;
 163         gspca_dev->usb_buf[1] = 0;                      /* control byte */
 164         gspca_dev->usb_buf[2] = addr;
 165         gspca_dev->usb_buf[3] = value;
 166
 167         reg_w(gspca_dev, 4);
 168 }
 169
 170 /* this function is called at probe time */
 171 static int sd_config(struct gspca_dev *gspca_dev,
 172                         const struct usb_device_id *id)
 173 {
 174         struct sd *sd = (struct sd *) gspca_dev;
 175         struct cam *cam;
 176
 177         cam = &gspca_dev->cam;
 178         cam->cam_mode = vga_mode;
 179         cam->nmodes = ARRAY_SIZE(vga_mode);
 180         sd->brightness = BRIGHTNESS_DEF;
 181         sd->colors = COLOR_DEF;
 182         sd->gamma = GAMMA_DEF;
 183         sd->sharpness = SHARPNESS_DEF;
 184         sd->quality = QUALITY_DEF;
 185         gspca_dev->nbalt = 9;           /* use the altsetting 08 */
 186         return 0;
 187 }
 188
 189 /* this function is called at probe and resume time */
 190 static int sd_init(struct gspca_dev *gspca_dev)
 191 {
 192         return 0;
 193 }
 194
 195 static int sd_start(struct gspca_dev *gspca_dev)
 196 {
 197         struct sd *sd = (struct sd *) gspca_dev;
 198         int err_code;
 199         u8 *data;
 200         int i;
 201
 202         /* create the JPEG header */
 203         sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
 204         if (!sd->jpeg_hdr)
 205                 return -ENOMEM;
 206         jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
 207                         0x21);          /* JPEG 422 */
 208         jpeg_set_qual(sd->jpeg_hdr, sd->quality);
 209
 210         data = gspca_dev->usb_buf;
 211
 212         data[0] = 0x01;         /* address */
 213         data[1] = 0x01;
 214         err_code = reg_w(gspca_dev, 2);
 215         if (err_code < 0)
 216                 return err_code;
 217
 218         /*
 219            Initialize the MR97113 chip register
 220          */
 221         data[0] = 0x00;         /* address */
 222         data[1] = 0x0c | 0x01;  /* reg 0 */
 223         data[2] = 0x01;         /* reg 1 */
 224         data[3] = gspca_dev->width / 8;         /* h_size , reg 2 */
 225         data[4] = gspca_dev->height / 8;        /* v_size , reg 3 */
 226         data[5] = 0x30;         /* reg 4, MI, PAS5101 :
 227                                  *      0x30 for 24mhz , 0x28 for 12mhz */
 228         data[6] = 0x02;         /* reg 5, H start - was 0x04 */
 229         data[7] = sd->gamma * 0x40;     /* reg 0x06: gamma */
 230         data[8] = 0x01;         /* reg 7, V start - was 0x03 */
 231 /*      if (h_size == 320 ) */
 232 /*              data[9]= 0x56;   * reg 8, 24MHz, 2:1 scale down */
 233 /*      else */
 234         data[9] = 0x52;         /* reg 8, 24MHz, no scale down */
 235 /*jfm: from win trace*/
 236         data[10] = 0x18;
 237
 238         err_code = reg_w(gspca_dev, 11);
 239         if (err_code < 0)
 240                 return err_code;
 241
 242         data[0] = 0x23;         /* address */
 243         data[1] = 0x09;         /* reg 35, append frame header */
 244
 245         err_code = reg_w(gspca_dev, 2);
 246         if (err_code < 0)
 247                 return err_code;
 248
 249         data[0] = 0x3c;         /* address */
 250 /*      if (gspca_dev->width == 1280) */
 251 /*              data[1] = 200;   * reg 60, pc-cam frame size
 252                                  *      (unit: 4KB) 800KB */
 253 /*      else */
 254         data[1] = 50;           /* 50 reg 60, pc-cam frame size
 255                                  *      (unit: 4KB) 200KB */
 256         err_code = reg_w(gspca_dev, 2);
 257         if (err_code < 0)
 258                 return err_code;
 259
 260         /* auto dark-gain */
 261         data[0] = 0x5e;         /* address */
 262         data[1] = 0;            /* reg 94, Y Gain (auto) */
 263 /*jfm: from win trace*/
 264                                 /* reg 0x5f/0x60 (LE) = saturation */
 265                                 /* h (60): xxxx x100
 266                                  * l (5f): xxxx x000 */
 267         data[2] = sd->colors << 3;
 268         data[3] = ((sd->colors >> 2) & 0xf8) | 0x04;
 269         data[4] = sd->brightness; /* reg 0x61 = brightness */
 270         data[5] = 0x00;
 271
 272         err_code = reg_w(gspca_dev, 6);
 273         if (err_code < 0)
 274                 return err_code;
 275
 276         data[0] = 0x67;
 277 /*jfm: from win trace*/
 278         data[1] = sd->sharpness * 4 + 3;
 279         data[2] = 0x14;
 280         err_code = reg_w(gspca_dev, 3);
 281         if (err_code < 0)
 282                 return err_code;
 283
 284         data[0] = 0x69;
 285         data[1] = 0x2f;
 286         data[2] = 0x28;
 287         data[3] = 0x42;
 288         err_code = reg_w(gspca_dev, 4);
 289         if (err_code < 0)
 290                 return err_code;
 291
 292         data[0] = 0x63;
 293         data[1] = 0x07;
 294         err_code = reg_w(gspca_dev, 2);
 295 /*jfm: win trace - many writes here to reg 0x64*/
 296         if (err_code < 0)
 297                 return err_code;
 298
 299         /* initialize the MI sensor */
 300         for (i = 0; i < sizeof mi_data; i++)
 301                 mi_w(gspca_dev, i + 1, mi_data[i]);
 302
 303         data[0] = 0x00;
 304         data[1] = 0x4d;         /* ISOC transfering enable... */
 305         reg_w(gspca_dev, 2);
 306         return 0;
 307 }
 308
 309 static void sd_stopN(struct gspca_dev *gspca_dev)
 310 {
 311         int result;
 312
 313         gspca_dev->usb_buf[0] = 1;
 314         gspca_dev->usb_buf[1] = 0;
 315         result = reg_w(gspca_dev, 2);
 316         if (result < 0)
 317                 PDEBUG(D_ERR, "Camera Stop failed");
 318 }
 319
 320 static void sd_stop0(struct gspca_dev *gspca_dev)
 321 {
 322         struct sd *sd = (struct sd *) gspca_dev;
 323
 324         kfree(sd->jpeg_hdr);
 325 }
 326
 327 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 328                         u8 *data,                       /* isoc packet */
 329                         int len)                        /* iso packet length */
 330 {
 331         struct sd *sd = (struct sd *) gspca_dev;
 332         int p;
 333
 334         if (len < 6) {
 335 /*              gspca_dev->last_packet_type = DISCARD_PACKET; */
 336                 return;
 337         }
 338         for (p = 0; p < len - 6; p++) {
 339                 if (data[0 + p] == 0xff
 340                     && data[1 + p] == 0xff
 341                     && data[2 + p] == 0x00
 342                     && data[3 + p] == 0xff
 343                     && data[4 + p] == 0x96) {
 344                         if (data[5 + p] == 0x64
 345                             || data[5 + p] == 0x65
 346                             || data[5 + p] == 0x66
 347                             || data[5 + p] == 0x67) {
 348                                 PDEBUG(D_PACK, "sof offset: %d len: %d",
 349                                         p, len);
 350                                 gspca_frame_add(gspca_dev, LAST_PACKET,
 351                                                 data, p);
 352
 353                                 /* put the JPEG header */
 354                                 gspca_frame_add(gspca_dev, FIRST_PACKET,
 355                                         sd->jpeg_hdr, JPEG_HDR_SZ);
 356                                 data += p + 16;
 357                                 len -= p + 16;
 358                                 break;
 359                         }
 360                 }
 361         }
 362         gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 363 }
 364
 365 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 366 {
 367         struct sd *sd = (struct sd *) gspca_dev;
 368
 369         sd->brightness = val;
 370         if (gspca_dev->streaming) {
 371                 gspca_dev->usb_buf[0] = 0x61;
 372                 gspca_dev->usb_buf[1] = val;
 373                 reg_w(gspca_dev, 2);
 374         }
 375         return 0;
 376 }
 377
 378 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 379 {
 380         struct sd *sd = (struct sd *) gspca_dev;
 381
 382         *val = sd->brightness;
 383         return 0;
 384 }
 385
 386 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
 387 {
 388         struct sd *sd = (struct sd *) gspca_dev;
 389
 390         sd->colors = val;
 391         if (gspca_dev->streaming) {
 392
 393                 /* see sd_start */
 394                 gspca_dev->usb_buf[0] = 0x5f;
 395                 gspca_dev->usb_buf[1] = sd->colors << 3;
 396                 gspca_dev->usb_buf[2] = ((sd->colors >> 2) & 0xf8) | 0x04;
 397                 reg_w(gspca_dev, 3);
 398         }
 399         return 0;
 400 }
 401
 402 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
 403 {
 404         struct sd *sd = (struct sd *) gspca_dev;
 405
 406         *val = sd->colors;
 407         return 0;
 408 }
 409
 410 static int sd_setgamma(struct gspca_dev *gspca_dev, __s32 val)
 411 {
 412         struct sd *sd = (struct sd *) gspca_dev;
 413
 414         sd->gamma = val;
 415         if (gspca_dev->streaming) {
 416                 gspca_dev->usb_buf[0] = 0x06;
 417                 gspca_dev->usb_buf[1] = val * 0x40;
 418                 reg_w(gspca_dev, 2);
 419         }
 420         return 0;
 421 }
 422
 423 static int sd_getgamma(struct gspca_dev *gspca_dev, __s32 *val)
 424 {
 425         struct sd *sd = (struct sd *) gspca_dev;
 426
 427         *val = sd->gamma;
 428         return 0;
 429 }
 430
 431 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
 432 {
 433         struct sd *sd = (struct sd *) gspca_dev;
 434
 435         sd->sharpness = val;
 436         if (gspca_dev->streaming) {
 437                 gspca_dev->usb_buf[0] = 0x67;
 438                 gspca_dev->usb_buf[1] = val * 4 + 3;
 439                 reg_w(gspca_dev, 2);
 440         }
 441         return 0;
 442 }
 443
 444 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
 445 {
 446         struct sd *sd = (struct sd *) gspca_dev;
 447
 448         *val = sd->sharpness;
 449         return 0;
 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 = ARRAY_SIZE(sd_ctrls),
 485         .config = sd_config,
 486         .init = sd_init,
 487         .start = sd_start,
 488         .stopN = sd_stopN,
 489         .stop0 = sd_stop0,
 490         .pkt_scan = sd_pkt_scan,
 491         .get_jcomp = sd_get_jcomp,
 492         .set_jcomp = sd_set_jcomp,
 493 };
 494
 495 /* -- module initialisation -- */
 496 static const __devinitdata struct usb_device_id device_table[] = {
 497         {USB_DEVICE(0x093a, 0x050f)},
 498         {}
 499 };
 500 MODULE_DEVICE_TABLE(usb, device_table);
 501
 502 /* -- device connect -- */
 503 static int sd_probe(struct usb_interface *intf,
 504                         const struct usb_device_id *id)
 505 {
 506         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 507                                 THIS_MODULE);
 508 }
 509
 510 static struct usb_driver sd_driver = {
 511         .name = MODULE_NAME,
 512         .id_table = device_table,
 513         .probe = sd_probe,
 514         .disconnect = gspca_disconnect,
 515 #ifdef CONFIG_PM
 516         .suspend = gspca_suspend,
 517         .resume = gspca_resume,
 518 #endif
 519 };
 520
 521 /* -- module insert / remove -- */
 522 static int __init sd_mod_init(void)
 523 {
 524         int ret;
 525
 526         ret = usb_register(&sd_driver);
 527         if (ret < 0)
 528                 return ret;
 529         PDEBUG(D_PROBE, "registered");
 530         return 0;
 531 }
 532 static void __exit sd_mod_exit(void)
 533 {
 534         usb_deregister(&sd_driver);
 535         PDEBUG(D_PROBE, "deregistered");
 536 }
 537
 538 module_init(sd_mod_init);
 539 module_exit(sd_mod_exit);