LXR linux/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 */
  22typedef 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
  29static struct usbvideo *cams = NULL;
  30
  31static int debug;
  32
  33static int flags; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */
  34
  35static const int min_canvasWidth  = 8;
  36static const int min_canvasHeight = 4;
  37
  38#define FRAMERATE_MIN   0
  39#define FRAMERATE_MAX   6
  40static 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 */
  56static int init_brightness = 128;
  57static int init_contrast = 192;
  58static int init_color = 128;
  59static int init_hue = 128;
  60static int hue_correction = 128;
  61
  62module_param(debug, int, S_IRUGO | S_IWUSR);
  63MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
  64module_param(flags, int, 0);
  65MODULE_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");
  73module_param(framerate, int, 0);
  74MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");
  75
  76module_param(init_brightness, int, 0);
  77MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
  78module_param(init_contrast, int, 0);
  79MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
  80module_param(init_color, int, 0);
  81MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
  82module_param(init_hue, int, 0);
  83MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
  84module_param(hue_correction, int, 0);
  85MODULE_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 */
  97static 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 */
 133static 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 */
 187static int ultracam_calculate_fps(struct uvd *uvd)
 188{
 189        return 3 + framerate*4 + framerate/2;
 190}
 191
 192/*
 193 * ultracam_adjust_contrast()
 194 */
 195static 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 */
 204static void ultracam_set_brightness(struct uvd *uvd)
 205{
 206}
 207
 208static 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 */
 218static 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 */
 231static 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 */
 242static void ultracam_reinit_iso(struct uvd *uvd, int do_stop)
 243{
 244}
 245
 246static void ultracam_video_start(struct uvd *uvd)
 247{
 248        ultracam_reinit_iso(uvd, 0);
 249}
 250
 251static int ultracam_resetPipe(struct uvd *uvd)
 252{
 253        usb_clear_halt(uvd->dev, uvd->video_endp);
 254        return 0;
 255}
 256
 257static 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 */
 273static 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
 461static 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 */
 511static 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
 637static 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 */
 647static 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
 669static void __exit ultracam_cleanup(void)
 670{
 671        usbvideo_Deregister(&cams);
 672}
 673
 674MODULE_DEVICE_TABLE(usb, id_table);
 675MODULE_LICENSE("GPL");
 676
 677module_init(ultracam_init);
 678module_exit(ultracam_cleanup);
 679