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