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 #define DRIVER_VERSION_NUMBER   KERNEL_VERSION(2, 1, 7)
  28 static const char version[] = "2.1.7";
  29
  30 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  31 MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
  32 MODULE_LICENSE("GPL");
  33
  34 /* specific webcam descriptor */
  35 struct sd {
  36         struct gspca_dev gspca_dev;     /* !! must be the first item */
  37
  38         char qindex;
  39 };
  40
  41 /* V4L2 controls supported by the driver */
  42 static struct ctrl sd_ctrls[] = {
  43 };
  44
  45 static struct v4l2_pix_format vga_mode[] = {
  46         {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
  47                 .bytesperline = 320,
  48                 .sizeimage = 320 * 240 * 3 / 8 + 589,
  49                 .colorspace = V4L2_COLORSPACE_JPEG,
  50                 .priv = 2},
  51         {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
  52                 .bytesperline = 640,
  53                 .sizeimage = 640 * 480 * 3 / 8 + 590,
  54                 .colorspace = V4L2_COLORSPACE_JPEG,
  55                 .priv = 1},
  56 };
  57
  58 /* MI Register table //elvis */
  59 enum {
  60         REG_HW_MI_0,
  61         REG_HW_MI_1,
  62         REG_HW_MI_2,
  63         REG_HW_MI_3,
  64         REG_HW_MI_4,
  65         REG_HW_MI_5,
  66         REG_HW_MI_6,
  67         REG_HW_MI_7,
  68         REG_HW_MI_9 = 0x09,
  69         REG_HW_MI_B = 0x0B,
  70         REG_HW_MI_C,
  71         REG_HW_MI_D,
  72         REG_HW_MI_1E = 0x1E,
  73         REG_HW_MI_20 = 0x20,
  74         REG_HW_MI_2B = 0x2B,
  75         REG_HW_MI_2C,
  76         REG_HW_MI_2D,
  77         REG_HW_MI_2E,
  78         REG_HW_MI_35 = 0x35,
  79         REG_HW_MI_5F = 0x5f,
  80         REG_HW_MI_60,
  81         REG_HW_MI_61,
  82         REG_HW_MI_62,
  83         REG_HW_MI_63,
  84         REG_HW_MI_64,
  85         REG_HW_MI_F1 = 0xf1,
  86         ATTR_TOTAL_MI_REG = 0xf2
  87 };
  88
  89 /* the bytes to write are in gspca_dev->usb_buf */
  90 static int reg_w(struct gspca_dev *gspca_dev,
  91                  __u16 index, int len)
  92 {
  93         int rc;
  94
  95         rc = usb_control_msg(gspca_dev->dev,
  96                          usb_sndbulkpipe(gspca_dev->dev, 4),
  97                          0x12,
  98                          0xc8,          /* ?? */
  99                          0,             /* value */
 100                          index, gspca_dev->usb_buf, len, 500);
 101         if (rc < 0)
 102                 PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc);
 103         return rc;
 104 }
 105
 106 static int reg_w_buf(struct gspca_dev *gspca_dev,
 107                         __u16 index, __u8 *buf, int len)
 108 {
 109         int rc;
 110
 111         rc = usb_control_msg(gspca_dev->dev,
 112                          usb_sndbulkpipe(gspca_dev->dev, 4),
 113                          0x12,
 114                          0xc8,          /* ?? */
 115                          0,             /* value */
 116                          index, buf, len, 500);
 117         if (rc < 0)
 118                 PDEBUG(D_ERR, "reg write [%02x] error %d", index, rc);
 119         return rc;
 120 }
 121
 122 static void bulk_w(struct gspca_dev *gspca_dev,
 123                    __u16 *pch,
 124                    __u16 Address)
 125 {
 126         gspca_dev->usb_buf[0] = 0x1f;
 127         gspca_dev->usb_buf[1] = 0;                      /* control byte */
 128         gspca_dev->usb_buf[2] = Address;
 129         gspca_dev->usb_buf[3] = *pch >> 8;              /* high byte */
 130         gspca_dev->usb_buf[4] = *pch;                   /* low byte */
 131
 132         reg_w(gspca_dev, Address, 5);
 133 }
 134
 135 /* this function is called at probe time */
 136 static int sd_config(struct gspca_dev *gspca_dev,
 137                         const struct usb_device_id *id)
 138 {
 139         struct sd *sd = (struct sd *) gspca_dev;
 140         struct cam *cam;
 141
 142         cam = &gspca_dev->cam;
 143         cam->dev_name = (char *) id->driver_info;
 144         cam->epaddr = 0x01;
 145         cam->cam_mode = vga_mode;
 146         cam->nmodes = sizeof vga_mode / sizeof vga_mode[0];
 147         sd->qindex = 1;                 /* set the quantization table */
 148         return 0;
 149 }
 150
 151 /* this function is called at open time */
 152 static int sd_open(struct gspca_dev *gspca_dev)
 153 {
 154         return 0;
 155 }
 156
 157 static void sd_start(struct gspca_dev *gspca_dev)
 158 {
 159         int err_code;
 160         __u8 *data;
 161         __u16 *MI_buf;
 162         int h_size, v_size;
 163         int intpipe;
 164
 165         PDEBUG(D_STREAM, "camera start, iface %d, alt 8", gspca_dev->iface);
 166         if (usb_set_interface(gspca_dev->dev, gspca_dev->iface, 8) < 0) {
 167                 PDEBUG(D_ERR|D_STREAM, "Set packet size: set interface error");
 168                 return;
 169         }
 170
 171         data = gspca_dev->usb_buf;
 172         data[0] = 0x01;         /* address */
 173         data[1] = 0x01;
 174
 175         err_code = reg_w(gspca_dev, data[0], 2);
 176         if (err_code < 0)
 177                 return;
 178
 179         /*
 180            Initialize the MR97113 chip register
 181          */
 182         data = kmalloc(16, GFP_KERNEL);
 183         data[0] = 0x00;         /* address */
 184         data[1] = 0x0c | 0x01;  /* reg 0 */
 185         data[2] = 0x01;         /* reg 1 */
 186         h_size = gspca_dev->width;
 187         v_size = gspca_dev->height;
 188         data[3] = h_size / 8;   /* h_size , reg 2 */
 189         data[4] = v_size / 8;   /* v_size , reg 3 */
 190         data[5] = 0x30;         /* reg 4, MI, PAS5101 :
 191                                  *      0x30 for 24mhz , 0x28 for 12mhz */
 192         data[6] = 4;            /* reg 5, H start */
 193         data[7] = 0xc0;         /* reg 6, gamma 1.5 */
 194         data[8] = 3;            /* reg 7, V start */
 195 /*      if (h_size == 320 ) */
 196 /*              data[9]= 0x56;   * reg 8, 24MHz, 2:1 scale down */
 197 /*      else */
 198         data[9] = 0x52;         /* reg 8, 24MHz, no scale down */
 199         data[10] = 0x5d;        /* reg 9, I2C device address
 200                                  *      [for PAS5101 (0x40)] [for MI (0x5d)] */
 201
 202         err_code = reg_w_buf(gspca_dev, data[0], data, 11);
 203         kfree(data);
 204         if (err_code < 0)
 205                 return;
 206
 207         data = gspca_dev->usb_buf;
 208         data[0] = 0x23;         /* address */
 209         data[1] = 0x09;         /* reg 35, append frame header */
 210
 211         err_code = reg_w(gspca_dev, data[0], 2);
 212         if (err_code < 0)
 213                 return;
 214
 215         data[0] = 0x3c;         /* address */
 216 /*      if (gspca_dev->width == 1280) */
 217 /*              data[1] = 200;   * reg 60, pc-cam frame size
 218                                  *      (unit: 4KB) 800KB */
 219 /*      else */
 220         data[1] = 50;           /* 50 reg 60, pc-cam frame size
 221                                  *      (unit: 4KB) 200KB */
 222         err_code = reg_w(gspca_dev, data[0], 2);
 223         if (err_code < 0)
 224                 return;
 225
 226         if (0) {                        /* fixed dark-gain */
 227                 data[1] = 0;            /* reg 94, Y Gain (1.75) */
 228                 data[2] = 0;            /* reg 95, UV Gain (1.75) */
 229                 data[3] = 0x3f;         /* reg 96, Y Gain/UV Gain/disable
 230                                          *      auto dark-gain */
 231                 data[4] = 0;            /* reg 97, set fixed dark level */
 232                 data[5] = 0;            /* reg 98, don't care */
 233         } else {                        /* auto dark-gain */
 234                 data[1] = 0;            /* reg 94, Y Gain (auto) */
 235                 data[2] = 0;            /* reg 95, UV Gain (1.75) */
 236                 data[3] = 0x78;         /* reg 96, Y Gain/UV Gain/disable
 237                                          *      auto dark-gain */
 238                 switch (gspca_dev->width) {
 239 /*              case 1280: */
 240 /*                      data[4] = 154;
 241                                  * reg 97, %3 shadow point (unit: 256 pixel) */
 242 /*                      data[5] = 51;
 243                                  * reg 98, %1 highlight point
 244                                  *      (uint: 256 pixel) */
 245 /*                      break; */
 246                 default:
 247 /*              case 640: */
 248                         data[4] = 36;   /* reg 97, %3 shadow point
 249                                          *      (unit: 256 pixel) */
 250                         data[5] = 12;   /* reg 98, %1 highlight point
 251                                          *      (uint: 256 pixel) */
 252                         break;
 253                 case 320:
 254                         data[4] = 9;    /* reg 97, %3 shadow point
 255                                          *      (unit: 256 pixel) */
 256                         data[5] = 3;    /* reg 98, %1 highlight point
 257                                          *      (uint: 256 pixel) */
 258                         break;
 259                 }
 260         }
 261         /* auto dark-gain */
 262         data[0] = 0x5e;         /* address */
 263
 264         err_code = reg_w(gspca_dev, data[0], 6);
 265         if (err_code < 0)
 266                 return;
 267
 268         data[0] = 0x67;
 269         data[1] = 0x13;         /* reg 103, first pixel B, disable sharpness */
 270         err_code = reg_w(gspca_dev, data[0], 2);
 271         if (err_code < 0)
 272                 return;
 273
 274         /*
 275          * initialize the value of MI sensor...
 276          */
 277         MI_buf = kzalloc(ATTR_TOTAL_MI_REG * sizeof *MI_buf, GFP_KERNEL);
 278         MI_buf[REG_HW_MI_1] = 0x000a;
 279         MI_buf[REG_HW_MI_2] = 0x000c;
 280         MI_buf[REG_HW_MI_3] = 0x0405;
 281         MI_buf[REG_HW_MI_4] = 0x0507;
 282         /* mi_Attr_Reg_[REG_HW_MI_5]     = 0x01ff;//13 */
 283         MI_buf[REG_HW_MI_5] = 0x0013;   /* 13 */
 284         MI_buf[REG_HW_MI_6] = 0x001f;   /* vertical blanking */
 285         /* mi_Attr_Reg_[REG_HW_MI_6]     = 0x0400;  // vertical blanking */
 286         MI_buf[REG_HW_MI_7] = 0x0002;
 287         /* mi_Attr_Reg_[REG_HW_MI_9]     = 0x015f; */
 288         /* mi_Attr_Reg_[REG_HW_MI_9]     = 0x030f; */
 289         MI_buf[REG_HW_MI_9] = 0x0374;
 290         MI_buf[REG_HW_MI_B] = 0x0000;
 291         MI_buf[REG_HW_MI_C] = 0x0000;
 292         MI_buf[REG_HW_MI_D] = 0x0000;
 293         MI_buf[REG_HW_MI_1E] = 0x8000;
 294 /* mi_Attr_Reg_[REG_HW_MI_20]     = 0x1104; */
 295         MI_buf[REG_HW_MI_20] = 0x1104;  /* 0x111c; */
 296         MI_buf[REG_HW_MI_2B] = 0x0008;
 297 /* mi_Attr_Reg_[REG_HW_MI_2C]     = 0x000f; */
 298         MI_buf[REG_HW_MI_2C] = 0x001f;  /* lita suggest */
 299         MI_buf[REG_HW_MI_2D] = 0x0008;
 300         MI_buf[REG_HW_MI_2E] = 0x0008;
 301         MI_buf[REG_HW_MI_35] = 0x0051;
 302         MI_buf[REG_HW_MI_5F] = 0x0904;  /* fail to write */
 303         MI_buf[REG_HW_MI_60] = 0x0000;
 304         MI_buf[REG_HW_MI_61] = 0x0000;
 305         MI_buf[REG_HW_MI_62] = 0x0498;
 306         MI_buf[REG_HW_MI_63] = 0x0000;
 307         MI_buf[REG_HW_MI_64] = 0x0000;
 308         MI_buf[REG_HW_MI_F1] = 0x0001;
 309         /* changing while setting up the different value of dx/dy */
 310
 311         if (gspca_dev->width != 1280) {
 312                 MI_buf[0x01] = 0x010a;
 313                 MI_buf[0x02] = 0x014c;
 314                 MI_buf[0x03] = 0x01e5;
 315                 MI_buf[0x04] = 0x0287;
 316         }
 317         MI_buf[0x20] = 0x1104;
 318
 319         bulk_w(gspca_dev, MI_buf + 1, 1);
 320         bulk_w(gspca_dev, MI_buf + 2, 2);
 321         bulk_w(gspca_dev, MI_buf + 3, 3);
 322         bulk_w(gspca_dev, MI_buf + 4, 4);
 323         bulk_w(gspca_dev, MI_buf + 5, 5);
 324         bulk_w(gspca_dev, MI_buf + 6, 6);
 325         bulk_w(gspca_dev, MI_buf + 7, 7);
 326         bulk_w(gspca_dev, MI_buf + 9, 9);
 327         bulk_w(gspca_dev, MI_buf + 0x0b, 0x0b);
 328         bulk_w(gspca_dev, MI_buf + 0x0c, 0x0c);
 329         bulk_w(gspca_dev, MI_buf + 0x0d, 0x0d);
 330         bulk_w(gspca_dev, MI_buf + 0x1e, 0x1e);
 331         bulk_w(gspca_dev, MI_buf + 0x20, 0x20);
 332         bulk_w(gspca_dev, MI_buf + 0x2b, 0x2b);
 333         bulk_w(gspca_dev, MI_buf + 0x2c, 0x2c);
 334         bulk_w(gspca_dev, MI_buf + 0x2d, 0x2d);
 335         bulk_w(gspca_dev, MI_buf + 0x2e, 0x2e);
 336         bulk_w(gspca_dev, MI_buf + 0x35, 0x35);
 337         bulk_w(gspca_dev, MI_buf + 0x5f, 0x5f);
 338         bulk_w(gspca_dev, MI_buf + 0x60, 0x60);
 339         bulk_w(gspca_dev, MI_buf + 0x61, 0x61);
 340         bulk_w(gspca_dev, MI_buf + 0x62, 0x62);
 341         bulk_w(gspca_dev, MI_buf + 0x63, 0x63);
 342         bulk_w(gspca_dev, MI_buf + 0x64, 0x64);
 343         bulk_w(gspca_dev, MI_buf + 0xf1, 0xf1);
 344         kfree(MI_buf);
 345
 346         intpipe = usb_sndintpipe(gspca_dev->dev, 0);
 347         err_code = usb_clear_halt(gspca_dev->dev, intpipe);
 348
 349         data[0] = 0x00;
 350         data[1] = 0x4d;         /* ISOC transfering enable... */
 351         reg_w(gspca_dev, data[0], 2);
 352 }
 353
 354 static void sd_stopN(struct gspca_dev *gspca_dev)
 355 {
 356         int result;
 357
 358         gspca_dev->usb_buf[0] = 1;
 359         gspca_dev->usb_buf[1] = 0;
 360         result = reg_w(gspca_dev, gspca_dev->usb_buf[0], 2);
 361         if (result < 0)
 362                 PDEBUG(D_ERR, "Camera Stop failed");
 363 }
 364
 365 static void sd_stop0(struct gspca_dev *gspca_dev)
 366 {
 367 }
 368
 369 static void sd_close(struct gspca_dev *gspca_dev)
 370 {
 371 }
 372
 373 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 374                         struct gspca_frame *frame,      /* target */
 375                         __u8 *data,                     /* isoc packet */
 376                         int len)                        /* iso packet length */
 377 {
 378         struct sd *sd = (struct sd *) gspca_dev;
 379         int p;
 380
 381         if (len < 6) {
 382 /*              gspca_dev->last_packet_type = DISCARD_PACKET; */
 383                 return;
 384         }
 385         for (p = 0; p < len - 6; p++) {
 386                 if (data[0 + p] == 0xff
 387                     && data[1 + p] == 0xff
 388                     && data[2 + p] == 0x00
 389                     && data[3 + p] == 0xff
 390                     && data[4 + p] == 0x96) {
 391                         if (data[5 + p] == 0x64
 392                             || data[5 + p] == 0x65
 393                             || data[5 + p] == 0x66
 394                             || data[5 + p] == 0x67) {
 395                                 PDEBUG(D_PACK, "sof offset: %d leng: %d",
 396                                         p, len);
 397                                 frame = gspca_frame_add(gspca_dev, LAST_PACKET,
 398                                                         frame, data, 0);
 399
 400                                 /* put the JPEG header */
 401                                 jpeg_put_header(gspca_dev, frame,
 402                                                 sd->qindex, 0x21);
 403                                 data += 16;
 404                                 len -= 16;
 405                                 break;
 406                         }
 407                 }
 408         }
 409         gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
 410 }
 411
 412 /* sub-driver description */
 413 static const struct sd_desc sd_desc = {
 414         .name = MODULE_NAME,
 415         .ctrls = sd_ctrls,
 416         .nctrls = ARRAY_SIZE(sd_ctrls),
 417         .config = sd_config,
 418         .open = sd_open,
 419         .start = sd_start,
 420         .stopN = sd_stopN,
 421         .stop0 = sd_stop0,
 422         .close = sd_close,
 423         .pkt_scan = sd_pkt_scan,
 424 };
 425
 426 /* -- module initialisation -- */
 427 #define DVNM(name) .driver_info = (kernel_ulong_t) name
 428 static const __devinitdata struct usb_device_id device_table[] = {
 429         {USB_DEVICE(0x093a, 0x050f), DVNM("Mars-Semi Pc-Camera")},
 430         {}
 431 };
 432 MODULE_DEVICE_TABLE(usb, device_table);
 433
 434 /* -- device connect -- */
 435 static int sd_probe(struct usb_interface *intf,
 436                         const struct usb_device_id *id)
 437 {
 438         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 439                                 THIS_MODULE);
 440 }
 441
 442 static struct usb_driver sd_driver = {
 443         .name = MODULE_NAME,
 444         .id_table = device_table,
 445         .probe = sd_probe,
 446         .disconnect = gspca_disconnect,
 447 };
 448
 449 /* -- module insert / remove -- */
 450 static int __init sd_mod_init(void)
 451 {
 452         if (usb_register(&sd_driver) < 0)
 453                 return -1;
 454         PDEBUG(D_PROBE, "v%s registered", version);
 455         return 0;
 456 }
 457 static void __exit sd_mod_exit(void)
 458 {
 459         usb_deregister(&sd_driver);
 460         PDEBUG(D_PROBE, "deregistered");
 461 }
 462
 463 module_init(sd_mod_init);
 464 module_exit(sd_mod_exit);