drivers/usb/media/ultracam.c

   1 /*
   2  * USB NB Camera driver
   3  *
   4  * HISTORY:
   5  * 25-Dec-2002 Dmitri      Removed lighting, sharpness parameters, methods.
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/sched.h>
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12
  13 #include "usbvideo.h"
  14
  15 #define ULTRACAM_VENDOR_ID      0x0461
  16 #define ULTRACAM_PRODUCT_ID     0x0813
  17
  18 #define MAX_CAMERAS             4       /* How many devices we allow to connect */
  19
  20 /*
  21  * This structure lives in uvd_t->user field.
  22  */
  23 typedef struct {
  24         int initialized;        /* Had we already sent init sequence? */
  25         int camera_model;       /* What type of IBM camera we got? */
  26         int has_hdr;
  27 } ultracam_t;
  28 #define ULTRACAM_T(uvd) ((ultracam_t *)((uvd)->user_data))
  29
  30 static struct usbvideo *cams = NULL;
  31
  32 static int debug = 0;
  33
  34 static int flags = 0; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */
  35
  36 static const int min_canvasWidth  = 8;
  37 static const int min_canvasHeight = 4;
  38
  39 #define FRAMERATE_MIN   0
  40 #define FRAMERATE_MAX   6
  41 static int framerate = -1;
  42
  43 /*
  44  * Here we define several initialization variables. They may
  45  * be used to automatically set color, hue, brightness and
  46  * contrast to desired values. This is particularly useful in
  47  * case of webcams (which have no controls and no on-screen
  48  * output) and also when a client V4L software is used that
  49  * does not have some of those controls. In any case it's
  50  * good to have startup values as options.
  51  *
  52  * These values are all in [0..255] range. This simplifies
  53  * operation. Note that actual values of V4L variables may
  54  * be scaled up (as much as << 8). User can see that only
  55  * on overlay output, however, or through a V4L client.
  56  */
  57 static int init_brightness = 128;
  58 static int init_contrast = 192;
  59 static int init_color = 128;
  60 static int init_hue = 128;
  61 static int hue_correction = 128;
  62
  63 module_param(debug, int, S_IRUGO | S_IWUSR);
  64 MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
  65 module_param(flags, int, 0);
  66 MODULE_PARM_DESC(flags,
  67                 "Bitfield: 0=VIDIOCSYNC, "
  68                 "1=B/W, "
  69                 "2=show hints, "
  70                 "3=show stats, "
  71                 "4=test pattern, "
  72                 "5=separate frames, "
  73                 "6=clean frames");
  74 module_param(framerate, int, 0);
  75 MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");
  76
  77 module_param(init_brightness, int, 0);
  78 MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
  79 module_param(init_contrast, int, 0);
  80 MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
  81 module_param(init_color, int, 0);
  82 MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
  83 module_param(init_hue, int, 0);
  84 MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
  85 module_param(hue_correction, int, 0);
  86 MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)");
  87
  88 /*
  89  * ultracam_ProcessIsocData()
  90  *
  91  * Generic routine to parse the ring queue data. It employs either
  92  * ultracam_find_header() or ultracam_parse_lines() to do most
  93  * of work.
  94  *
  95  * 02-Nov-2000 First (mostly dummy) version.
  96  * 06-Nov-2000 Rewrote to dump all data into frame.
  97  */
  98 static void ultracam_ProcessIsocData(struct uvd *uvd, struct usbvideo_frame *frame)
  99 {
 100         int n;
 101
 102         assert(uvd != NULL);
 103         assert(frame != NULL);
 104
 105         /* Try to move data from queue into frame buffer */
 106         n = RingQueue_GetLength(&uvd->dp);
 107         if (n > 0) {
 108                 int m;
 109                 /* See how much spare we have left */
 110                 m = uvd->max_frame_size - frame->seqRead_Length;
 111                 if (n > m)
 112                         n = m;
 113                 /* Now move that much data into frame buffer */
 114                 RingQueue_Dequeue(
 115                         &uvd->dp,
 116                         frame->data + frame->seqRead_Length,
 117                         m);
 118                 frame->seqRead_Length += m;
 119         }
 120         /* See if we filled the frame */
 121         if (frame->seqRead_Length >= uvd->max_frame_size) {
 122                 frame->frameState = FrameState_Done;
 123                 uvd->curframe = -1;
 124                 uvd->stats.frame_num++;
 125         }
 126 }
 127
 128 /*
 129  * ultracam_veio()
 130  *
 131  * History:
 132  * 1/27/00  Added check for dev == NULL; this happens if camera is unplugged.
 133  */
 134 static int ultracam_veio(
 135         struct uvd *uvd,
 136         unsigned char req,
 137         unsigned short value,
 138         unsigned short index,
 139         int is_out)
 140 {
 141         static const char proc[] = "ultracam_veio";
 142         unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */;
 143         int i;
 144
 145         if (!CAMERA_IS_OPERATIONAL(uvd))
 146                 return 0;
 147
 148         if (!is_out) {
 149                 i = usb_control_msg(
 150                         uvd->dev,
 151                         usb_rcvctrlpipe(uvd->dev, 0),
 152                         req,
 153                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 154                         value,
 155                         index,
 156                         cp,
 157                         sizeof(cp),
 158                         1000);
 159 #if 1
 160                 info("USB => %02x%02x%02x%02x%02x%02x%02x%02x "
 161                        "(req=$%02x val=$%04x ind=$%04x)",
 162                        cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7],
 163                        req, value, index);
 164 #endif
 165         } else {
 166                 i = usb_control_msg(
 167                         uvd->dev,
 168                         usb_sndctrlpipe(uvd->dev, 0),
 169                         req,
 170                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 171                         value,
 172                         index,
 173                         NULL,
 174                         0,
 175                         1000);
 176         }
 177         if (i < 0) {
 178                 err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.",
 179                     proc, i);
 180                 uvd->last_error = i;
 181         }
 182         return i;
 183 }
 184
 185 /*
 186  * ultracam_calculate_fps()
 187  */
 188 static int ultracam_calculate_fps(struct uvd *uvd)
 189 {
 190         return 3 + framerate*4 + framerate/2;
 191 }
 192
 193 /*
 194  * ultracam_adjust_contrast()
 195  */
 196 static void ultracam_adjust_contrast(struct uvd *uvd)
 197 {
 198 }
 199
 200 /*
 201  * ultracam_set_brightness()
 202  *
 203  * This procedure changes brightness of the picture.
 204  */
 205 static void ultracam_set_brightness(struct uvd *uvd)
 206 {
 207 }
 208
 209 static void ultracam_set_hue(struct uvd *uvd)
 210 {
 211 }
 212
 213 /*
 214  * ultracam_adjust_picture()
 215  *
 216  * This procedure gets called from V4L interface to update picture settings.
 217  * Here we change brightness and contrast.
 218  */
 219 static void ultracam_adjust_picture(struct uvd *uvd)
 220 {
 221         ultracam_adjust_contrast(uvd);
 222         ultracam_set_brightness(uvd);
 223         ultracam_set_hue(uvd);
 224 }
 225
 226 /*
 227  * ultracam_video_stop()
 228  *
 229  * This code tells camera to stop streaming. The interface remains
 230  * configured and bandwidth - claimed.
 231  */
 232 static void ultracam_video_stop(struct uvd *uvd)
 233 {
 234 }
 235
 236 /*
 237  * ultracam_reinit_iso()
 238  *
 239  * This procedure sends couple of commands to the camera and then
 240  * resets the video pipe. This sequence was observed to reinit the
 241  * camera or, at least, to initiate ISO data stream.
 242  */
 243 static void ultracam_reinit_iso(struct uvd *uvd, int do_stop)
 244 {
 245 }
 246
 247 static void ultracam_video_start(struct uvd *uvd)
 248 {
 249         ultracam_reinit_iso(uvd, 0);
 250 }
 251
 252 static int ultracam_resetPipe(struct uvd *uvd)
 253 {
 254         usb_clear_halt(uvd->dev, uvd->video_endp);
 255         return 0;
 256 }
 257
 258 static int ultracam_alternateSetting(struct uvd *uvd, int setting)
 259 {
 260         static const char proc[] = "ultracam_alternateSetting";
 261         int i;
 262         i = usb_set_interface(uvd->dev, uvd->iface, setting);
 263         if (i < 0) {
 264                 err("%s: usb_set_interface error", proc);
 265                 uvd->last_error = i;
 266                 return -EBUSY;
 267         }
 268         return 0;
 269 }
 270
 271 /*
 272  * Return negative code on failure, 0 on success.
 273  */
 274 static int ultracam_setup_on_open(struct uvd *uvd)
 275 {
 276         int setup_ok = 0; /* Success by default */
 277         /* Send init sequence only once, it's large! */
 278         if (!ULTRACAM_T(uvd)->initialized) {
 279                 ultracam_alternateSetting(uvd, 0x04);
 280                 ultracam_alternateSetting(uvd, 0x00);
 281                 ultracam_veio(uvd, 0x02, 0x0004, 0x000b, 1);
 282                 ultracam_veio(uvd, 0x02, 0x0001, 0x0005, 1);
 283                 ultracam_veio(uvd, 0x02, 0x8000, 0x0000, 1);
 284                 ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
 285                 ultracam_veio(uvd, 0x00, 0x00b0, 0x0001, 1);
 286                 ultracam_veio(uvd, 0x00, 0x0000, 0x0002, 1);
 287                 ultracam_veio(uvd, 0x00, 0x000c, 0x0003, 1);
 288                 ultracam_veio(uvd, 0x00, 0x000b, 0x0004, 1);
 289                 ultracam_veio(uvd, 0x00, 0x0000, 0x0005, 1);
 290                 ultracam_veio(uvd, 0x00, 0x0000, 0x0006, 1);
 291                 ultracam_veio(uvd, 0x00, 0x0079, 0x0007, 1);
 292                 ultracam_veio(uvd, 0x00, 0x003b, 0x0008, 1);
 293                 ultracam_veio(uvd, 0x00, 0x0002, 0x000f, 1);
 294                 ultracam_veio(uvd, 0x00, 0x0001, 0x0010, 1);
 295                 ultracam_veio(uvd, 0x00, 0x0000, 0x0011, 1);
 296                 ultracam_veio(uvd, 0x00, 0x0000, 0x00bf, 1);
 297                 ultracam_veio(uvd, 0x00, 0x0001, 0x00c0, 1);
 298                 ultracam_veio(uvd, 0x00, 0x0010, 0x00cb, 1);
 299                 ultracam_veio(uvd, 0x01, 0x00a4, 0x0001, 1);
 300                 ultracam_veio(uvd, 0x01, 0x0010, 0x0002, 1);
 301                 ultracam_veio(uvd, 0x01, 0x0066, 0x0007, 1);
 302                 ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
 303                 ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
 304                 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
 305                 ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
 306                 ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
 307                 ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
 308                 ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
 309                 ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
 310                 ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
 311                 ultracam_veio(uvd, 0x01, 0x000b, 0x0011, 1);
 312                 ultracam_veio(uvd, 0x01, 0x0001, 0x0012, 1);
 313                 ultracam_veio(uvd, 0x01, 0x0000, 0x0013, 1);
 314                 ultracam_veio(uvd, 0x01, 0x0000, 0x0014, 1);
 315                 ultracam_veio(uvd, 0x01, 0x0087, 0x0051, 1);
 316                 ultracam_veio(uvd, 0x01, 0x0040, 0x0052, 1);
 317                 ultracam_veio(uvd, 0x01, 0x0058, 0x0053, 1);
 318                 ultracam_veio(uvd, 0x01, 0x0040, 0x0054, 1);
 319                 ultracam_veio(uvd, 0x01, 0x0000, 0x0040, 1);
 320                 ultracam_veio(uvd, 0x01, 0x0010, 0x0041, 1);
 321                 ultracam_veio(uvd, 0x01, 0x0020, 0x0042, 1);
 322                 ultracam_veio(uvd, 0x01, 0x0030, 0x0043, 1);
 323                 ultracam_veio(uvd, 0x01, 0x0040, 0x0044, 1);
 324                 ultracam_veio(uvd, 0x01, 0x0050, 0x0045, 1);
 325                 ultracam_veio(uvd, 0x01, 0x0060, 0x0046, 1);
 326                 ultracam_veio(uvd, 0x01, 0x0070, 0x0047, 1);
 327                 ultracam_veio(uvd, 0x01, 0x0080, 0x0048, 1);
 328                 ultracam_veio(uvd, 0x01, 0x0090, 0x0049, 1);
 329                 ultracam_veio(uvd, 0x01, 0x00a0, 0x004a, 1);
 330                 ultracam_veio(uvd, 0x01, 0x00b0, 0x004b, 1);
 331                 ultracam_veio(uvd, 0x01, 0x00c0, 0x004c, 1);
 332                 ultracam_veio(uvd, 0x01, 0x00d0, 0x004d, 1);
 333                 ultracam_veio(uvd, 0x01, 0x00e0, 0x004e, 1);
 334                 ultracam_veio(uvd, 0x01, 0x00f0, 0x004f, 1);
 335                 ultracam_veio(uvd, 0x01, 0x00ff, 0x0050, 1);
 336                 ultracam_veio(uvd, 0x01, 0x0000, 0x0056, 1);
 337                 ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
 338                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
 339                 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
 340                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 341                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 342                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 343                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 344                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 345                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 346                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 347                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 348                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 349                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 350                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 351                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 352                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 353                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 354                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 355                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 356                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 357                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 358                 ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
 359                 ultracam_veio(uvd, 0x00, 0x0004, 0x00c2, 1);
 360                 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
 361                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 362                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 363                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 364                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 365                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 366                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 367                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 368                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 369                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 370                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 371                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 372                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 373                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 374                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 375                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 376                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 377                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 378                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 379                 ultracam_veio(uvd, 0x00, 0x0002, 0x00c1, 1);
 380                 ultracam_veio(uvd, 0x00, 0x0020, 0x00c2, 1);
 381                 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
 382                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
 383                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
 384                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
 385                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
 386                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
 387                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
 388                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 389                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
 390                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
 391                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
 392                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
 393                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
 394                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
 395                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 396                 ultracam_veio(uvd, 0x00, 0x0040, 0x00c1, 1);
 397                 ultracam_veio(uvd, 0x00, 0x0017, 0x00c2, 1);
 398                 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
 399                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
 400                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
 401                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
 402                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
 403                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
 404                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
 405                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 406                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
 407                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
 408                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
 409                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
 410                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
 411                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
 412                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
 413                 ultracam_veio(uvd, 0x00, 0x00c0, 0x00c1, 1);
 414                 ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
 415                 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
 416                 ultracam_veio(uvd, 0x02, 0xc040, 0x0001, 1);
 417                 ultracam_veio(uvd, 0x01, 0x0000, 0x0008, 0);
 418                 ultracam_veio(uvd, 0x01, 0x0000, 0x0009, 0);
 419                 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 0);
 420                 ultracam_veio(uvd, 0x01, 0x0000, 0x000b, 0);
 421                 ultracam_veio(uvd, 0x01, 0x0000, 0x000c, 0);
 422                 ultracam_veio(uvd, 0x01, 0x0000, 0x000d, 0);
 423                 ultracam_veio(uvd, 0x01, 0x0000, 0x000e, 0);
 424                 ultracam_veio(uvd, 0x01, 0x0000, 0x000f, 0);
 425                 ultracam_veio(uvd, 0x01, 0x0000, 0x0010, 0);
 426                 ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
 427                 ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
 428                 ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
 429                 ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
 430                 ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
 431                 ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
 432                 ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
 433                 ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
 434                 ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
 435                 ultracam_veio(uvd, 0x01, 0x0000, 0x0001, 0);
 436                 ultracam_veio(uvd, 0x01, 0x0064, 0x0001, 1);
 437                 ultracam_veio(uvd, 0x01, 0x0059, 0x0051, 1);
 438                 ultracam_veio(uvd, 0x01, 0x003f, 0x0052, 1);
 439                 ultracam_veio(uvd, 0x01, 0x0094, 0x0053, 1);
 440                 ultracam_veio(uvd, 0x01, 0x00ff, 0x0011, 1);
 441                 ultracam_veio(uvd, 0x01, 0x0003, 0x0012, 1);
 442                 ultracam_veio(uvd, 0x01, 0x00f7, 0x0013, 1);
 443                 ultracam_veio(uvd, 0x00, 0x0009, 0x0011, 1);
 444                 ultracam_veio(uvd, 0x00, 0x0000, 0x0001, 1);
 445                 ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
 446                 ultracam_veio(uvd, 0x00, 0x0020, 0x00c1, 1);
 447                 ultracam_veio(uvd, 0x00, 0x0010, 0x00c2, 1);
 448                 ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
 449                 ultracam_alternateSetting(uvd, 0x04);
 450                 ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
 451                 ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
 452                 ultracam_veio(uvd, 0x02, 0x0000, 0x0006, 1);
 453                 ultracam_veio(uvd, 0x02, 0x9000, 0x0007, 1);
 454                 ultracam_veio(uvd, 0x02, 0x0042, 0x0001, 1);
 455                 ultracam_veio(uvd, 0x02, 0x0000, 0x000b, 0);
 456                 ultracam_resetPipe(uvd);
 457                 ULTRACAM_T(uvd)->initialized = (setup_ok != 0);
 458         }
 459         return setup_ok;
 460 }
 461
 462 static void ultracam_configure_video(struct uvd *uvd)
 463 {
 464         if (uvd == NULL)
 465                 return;
 466
 467         RESTRICT_TO_RANGE(init_brightness, 0, 255);
 468         RESTRICT_TO_RANGE(init_contrast, 0, 255);
 469         RESTRICT_TO_RANGE(init_color, 0, 255);
 470         RESTRICT_TO_RANGE(init_hue, 0, 255);
 471         RESTRICT_TO_RANGE(hue_correction, 0, 255);
 472
 473         memset(&uvd->vpic, 0, sizeof(uvd->vpic));
 474         memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
 475
 476         uvd->vpic.colour = init_color << 8;
 477         uvd->vpic.hue = init_hue << 8;
 478         uvd->vpic.brightness = init_brightness << 8;
 479         uvd->vpic.contrast = init_contrast << 8;
 480         uvd->vpic.whiteness = 105 << 8; /* This one isn't used */
 481         uvd->vpic.depth = 24;
 482         uvd->vpic.palette = VIDEO_PALETTE_RGB24;
 483
 484         memset(&uvd->vcap, 0, sizeof(uvd->vcap));
 485         strcpy(uvd->vcap.name, "IBM Ultra Camera");
 486         uvd->vcap.type = VID_TYPE_CAPTURE;
 487         uvd->vcap.channels = 1;
 488         uvd->vcap.audios = 0;
 489         uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas);
 490         uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas);
 491         uvd->vcap.minwidth = min_canvasWidth;
 492         uvd->vcap.minheight = min_canvasHeight;
 493
 494         memset(&uvd->vchan, 0, sizeof(uvd->vchan));
 495         uvd->vchan.flags = 0;
 496         uvd->vchan.tuners = 0;
 497         uvd->vchan.channel = 0;
 498         uvd->vchan.type = VIDEO_TYPE_CAMERA;
 499         strcpy(uvd->vchan.name, "Camera");
 500 }
 501
 502 /*
 503  * ultracam_probe()
 504  *
 505  * This procedure queries device descriptor and accepts the interface
 506  * if it looks like our camera.
 507  *
 508  * History:
 509  * 12-Nov-2000 Reworked to comply with new probe() signature.
 510  * 23-Jan-2001 Added compatibility with 2.2.x kernels.
 511  */
 512 static int ultracam_probe(struct usb_interface *intf, const struct usb_device_id *devid)
 513 {
 514         struct usb_device *dev = interface_to_usbdev(intf);
 515         struct uvd *uvd = NULL;
 516         int ix, i, nas;
 517         int actInterface=-1, inactInterface=-1, maxPS=0;
 518         unsigned char video_ep = 0;
 519
 520         if (debug >= 1)
 521                 info("ultracam_probe(%p)", intf);
 522
 523         /* We don't handle multi-config cameras */
 524         if (dev->descriptor.bNumConfigurations != 1)
 525                 return -ENODEV;
 526
 527         info("IBM Ultra camera found (rev. 0x%04x)",
 528                 le16_to_cpu(dev->descriptor.bcdDevice));
 529
 530         /* Validate found interface: must have one ISO endpoint */
 531         nas = intf->num_altsetting;
 532         if (debug > 0)
 533                 info("Number of alternate settings=%d.", nas);
 534         if (nas < 8) {
 535                 err("Too few alternate settings for this camera!");
 536                 return -ENODEV;
 537         }
 538         /* Validate all alternate settings */
 539         for (ix=0; ix < nas; ix++) {
 540                 const struct usb_host_interface *interface;
 541                 const struct usb_endpoint_descriptor *endpoint;
 542
 543                 interface = &intf->altsetting[ix];
 544                 i = interface->desc.bAlternateSetting;
 545                 if (interface->desc.bNumEndpoints != 1) {
 546                         err("Interface %d. has %u. endpoints!",
 547                             interface->desc.bInterfaceNumber,
 548                             (unsigned)(interface->desc.bNumEndpoints));
 549                         return -ENODEV;
 550                 }
 551                 endpoint = &interface->endpoint[0].desc;
 552                 if (video_ep == 0)
 553                         video_ep = endpoint->bEndpointAddress;
 554                 else if (video_ep != endpoint->bEndpointAddress) {
 555                         err("Alternate settings have different endpoint addresses!");
 556                         return -ENODEV;
 557                 }
 558                 if ((endpoint->bmAttributes & 0x03) != 0x01) {
 559                         err("Interface %d. has non-ISO endpoint!",
 560                             interface->desc.bInterfaceNumber);
 561                         return -ENODEV;
 562                 }
 563                 if ((endpoint->bEndpointAddress & 0x80) == 0) {
 564                         err("Interface %d. has ISO OUT endpoint!",
 565                             interface->desc.bInterfaceNumber);
 566                         return -ENODEV;
 567                 }
 568                 if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) {
 569                         if (inactInterface < 0)
 570                                 inactInterface = i;
 571                         else {
 572                                 err("More than one inactive alt. setting!");
 573                                 return -ENODEV;
 574                         }
 575                 } else {
 576                         if (actInterface < 0) {
 577                                 actInterface = i;
 578                                 maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
 579                                 if (debug > 0)
 580                                         info("Active setting=%d. maxPS=%d.", i, maxPS);
 581                         } else {
 582                                 /* Got another active alt. setting */
 583                                 if (maxPS < le16_to_cpu(endpoint->wMaxPacketSize)) {
 584                                         /* This one is better! */
 585                                         actInterface = i;
 586                                         maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
 587                                         if (debug > 0) {
 588                                                 info("Even better ctive setting=%d. maxPS=%d.",
 589                                                      i, maxPS);
 590                                         }
 591                                 }
 592                         }
 593                 }
 594         }
 595         if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) {
 596                 err("Failed to recognize the camera!");
 597                 return -ENODEV;
 598         }
 599
 600         uvd = usbvideo_AllocateDevice(cams);
 601         if (uvd != NULL) {
 602                 /* Here uvd is a fully allocated uvd object */
 603                 uvd->flags = flags;
 604                 uvd->debug = debug;
 605                 uvd->dev = dev;
 606                 uvd->iface = intf->altsetting->desc.bInterfaceNumber;
 607                 uvd->ifaceAltInactive = inactInterface;
 608                 uvd->ifaceAltActive = actInterface;
 609                 uvd->video_endp = video_ep;
 610                 uvd->iso_packet_len = maxPS;
 611                 uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24;
 612                 uvd->defaultPalette = VIDEO_PALETTE_RGB24;
 613                 uvd->canvas = VIDEOSIZE(640, 480);      /* FIXME */
 614                 uvd->videosize = uvd->canvas; /* ultracam_size_to_videosize(size);*/
 615
 616                 /* Initialize ibmcam-specific data */
 617                 assert(ULTRACAM_T(uvd) != NULL);
 618                 ULTRACAM_T(uvd)->camera_model = 0; /* Not used yet */
 619                 ULTRACAM_T(uvd)->initialized = 0;
 620
 621                 ultracam_configure_video(uvd);
 622
 623                 i = usbvideo_RegisterVideoDevice(uvd);
 624                 if (i != 0) {
 625                         err("usbvideo_RegisterVideoDevice() failed.");
 626                         uvd = NULL;
 627                 }
 628         }
 629
 630         if (uvd) {
 631                 usb_set_intfdata (intf, uvd);
 632                 return 0;
 633         }
 634         return -EIO;
 635 }
 636
 637
 638 static struct usb_device_id id_table[] = {
 639         { USB_DEVICE(ULTRACAM_VENDOR_ID, ULTRACAM_PRODUCT_ID) },
 640         { }  /* Terminating entry */
 641 };
 642
 643 /*
 644  * ultracam_init()
 645  *
 646  * This code is run to initialize the driver.
 647  */
 648 static int __init ultracam_init(void)
 649 {
 650         struct usbvideo_cb cbTbl;
 651         memset(&cbTbl, 0, sizeof(cbTbl));
 652         cbTbl.probe = ultracam_probe;
 653         cbTbl.setupOnOpen = ultracam_setup_on_open;
 654         cbTbl.videoStart = ultracam_video_start;
 655         cbTbl.videoStop = ultracam_video_stop;
 656         cbTbl.processData = ultracam_ProcessIsocData;
 657         cbTbl.postProcess = usbvideo_DeinterlaceFrame;
 658         cbTbl.adjustPicture = ultracam_adjust_picture;
 659         cbTbl.getFPS = ultracam_calculate_fps;
 660         return usbvideo_register(
 661                 &cams,
 662                 MAX_CAMERAS,
 663                 sizeof(ultracam_t),
 664                 "ultracam",
 665                 &cbTbl,
 666                 THIS_MODULE,
 667                 id_table);
 668 }
 669
 670 static void __exit ultracam_cleanup(void)
 671 {
 672         usbvideo_Deregister(&cams);
 673 }
 674
 675 MODULE_DEVICE_TABLE(usb, id_table);
 676 MODULE_LICENSE("GPL");
 677
 678 module_init(ultracam_init);
 679 module_exit(ultracam_cleanup);