git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/usbvision/usbvision-video.c

   1 /*
   2  * USB USBVISION Video device driver 0.9.9
   3  *
   4  *
   5  *
   6  * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
   7  *
   8  * This module is part of usbvision driver project.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  * Let's call the version 0.... until compression decoding is completely
  25  * implemented.
  26  *
  27  * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach.
  28  * It was based on USB CPiA driver written by Peter Pregler,
  29  * Scott J. Bertin and Johannes Erdfelt
  30  * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler &
  31  * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink
  32  * Updates to driver completed by Dwaine P. Garden
  33  *
  34  *
  35  * TODO:
  36  *     - use submit_urb for all setup packets
  37  *     - Fix memory settings for nt1004. It is 4 times as big as the
  38  *       nt1003 memory.
  39  *     - Add audio on endpoint 3 for nt1004 chip.
  40  *         Seems impossible, needs a codec interface.  Which one?
  41  *     - Clean up the driver.
  42  *     - optimization for performance.
  43  *     - Add Videotext capability (VBI).  Working on it.....
  44  *     - Check audio for other devices
  45  *
  46  */
  47
  48 #include <linux/version.h>
  49 #include <linux/kernel.h>
  50 #include <linux/list.h>
  51 #include <linux/timer.h>
  52 #include <linux/slab.h>
  53 #include <linux/mm.h>
  54 #include <linux/utsname.h>
  55 #include <linux/highmem.h>
  56 #include <linux/vmalloc.h>
  57 #include <linux/module.h>
  58 #include <linux/init.h>
  59 #include <linux/spinlock.h>
  60 #include <asm/io.h>
  61 #include <linux/videodev2.h>
  62 #include <linux/video_decoder.h>
  63 #include <linux/i2c.h>
  64
  65 #include <media/saa7115.h>
  66 #include <media/v4l2-common.h>
  67 #include <media/v4l2-ioctl.h>
  68 #include <media/tuner.h>
  69
  70 #include <linux/workqueue.h>
  71
  72 #ifdef CONFIG_KMOD
  73 #include <linux/kmod.h>
  74 #endif
  75
  76 #include "usbvision.h"
  77 #include "usbvision-cards.h"
  78
  79 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
  80  Dwaine Garden <DwaineGarden@rogers.com>"
  81 #define DRIVER_NAME "usbvision"
  82 #define DRIVER_ALIAS "USBVision"
  83 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
  84 #define DRIVER_LICENSE "GPL"
  85 #define USBVISION_DRIVER_VERSION_MAJOR 0
  86 #define USBVISION_DRIVER_VERSION_MINOR 9
  87 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
  88 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
  89 USBVISION_DRIVER_VERSION_MINOR,\
  90 USBVISION_DRIVER_VERSION_PATCHLEVEL)
  91 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
  92  "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
  93  "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
  94
  95 #define ENABLE_HEXDUMP  0       /* Enable if you need it */
  96
  97
  98 #ifdef USBVISION_DEBUG
  99         #define PDEBUG(level, fmt, args...) { \
 100                 if (video_debug & (level)) \
 101                         printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \
 102                                 __func__, __LINE__ , ## args); \
 103         }
 104 #else
 105         #define PDEBUG(level, fmt, args...) do {} while(0)
 106 #endif
 107
 108 #define DBG_IO          1<<1
 109 #define DBG_PROBE       1<<2
 110 #define DBG_MMAP        1<<3
 111
 112 //String operations
 113 #define rmspace(str)    while(*str==' ') str++;
 114 #define goto2next(str)  while(*str!=' ') str++; while(*str==' ') str++;
 115
 116
 117 /* sequential number of usbvision device */
 118 static int usbvision_nr;
 119
 120 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
 121         { 1, 1,  8, V4L2_PIX_FMT_GREY    , "GREY" },
 122         { 1, 2, 16, V4L2_PIX_FMT_RGB565  , "RGB565" },
 123         { 1, 3, 24, V4L2_PIX_FMT_RGB24   , "RGB24" },
 124         { 1, 4, 32, V4L2_PIX_FMT_RGB32   , "RGB32" },
 125         { 1, 2, 16, V4L2_PIX_FMT_RGB555  , "RGB555" },
 126         { 1, 2, 16, V4L2_PIX_FMT_YUYV    , "YUV422" },
 127         { 1, 2, 12, V4L2_PIX_FMT_YVU420  , "YUV420P" }, // 1.5 !
 128         { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
 129 };
 130
 131 /* Function prototypes */
 132 static void usbvision_release(struct usb_usbvision *usbvision);
 133
 134 /* Default initialization of device driver parameters */
 135 /* Set the default format for ISOC endpoint */
 136 static int isocMode = ISOC_MODE_COMPRESS;
 137 /* Set the default Debug Mode of the device driver */
 138 static int video_debug;
 139 /* Set the default device to power on at startup */
 140 static int PowerOnAtOpen = 1;
 141 /* Sequential Number of Video Device */
 142 static int video_nr = -1;
 143 /* Sequential Number of Radio Device */
 144 static int radio_nr = -1;
 145 /* Sequential Number of VBI Device */
 146 static int vbi_nr = -1;
 147
 148 /* Grab parameters for the device driver */
 149
 150 /* Showing parameters under SYSFS */
 151 module_param(isocMode, int, 0444);
 152 module_param(video_debug, int, 0444);
 153 module_param(PowerOnAtOpen, int, 0444);
 154 module_param(video_nr, int, 0444);
 155 module_param(radio_nr, int, 0444);
 156 module_param(vbi_nr, int, 0444);
 157
 158 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint.  Default: 0x60 (Compression On)");
 159 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver.  Default: 0 (Off)");
 160 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened.  Default: 1 (On)");
 161 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX).  Default: -1 (autodetect)");
 162 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1 (autodetect)");
 163 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX).  Default: -1 (autodetect)");
 164
 165
 166 // Misc stuff
 167 MODULE_AUTHOR(DRIVER_AUTHOR);
 168 MODULE_DESCRIPTION(DRIVER_DESC);
 169 MODULE_LICENSE(DRIVER_LICENSE);
 170 MODULE_VERSION(USBVISION_VERSION_STRING);
 171 MODULE_ALIAS(DRIVER_ALIAS);
 172
 173
 174 /*****************************************************************************/
 175 /* SYSFS Code - Copied from the stv680.c usb module.                         */
 176 /* Device information is located at /sys/class/video4linux/video0            */
 177 /* Device parameters information is located at /sys/module/usbvision         */
 178 /* Device USB Information is located at                                      */
 179 /*   /sys/bus/usb/drivers/USBVision Video Grabber                            */
 180 /*****************************************************************************/
 181
 182 #define YES_NO(x) ((x) ? "Yes" : "No")
 183
 184 static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
 185 {
 186         struct video_device *vdev =
 187                 container_of(cd, struct video_device, dev);
 188         return video_get_drvdata(vdev);
 189 }
 190
 191 static ssize_t show_version(struct device *cd,
 192                             struct device_attribute *attr, char *buf)
 193 {
 194         return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
 195 }
 196 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
 197
 198 static ssize_t show_model(struct device *cd,
 199                           struct device_attribute *attr, char *buf)
 200 {
 201         struct video_device *vdev =
 202                 container_of(cd, struct video_device, dev);
 203         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 204         return sprintf(buf, "%s\n",
 205                        usbvision_device_data[usbvision->DevModel].ModelString);
 206 }
 207 static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
 208
 209 static ssize_t show_hue(struct device *cd,
 210                         struct device_attribute *attr, char *buf)
 211 {
 212         struct video_device *vdev =
 213                 container_of(cd, struct video_device, dev);
 214         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 215         struct v4l2_control ctrl;
 216         ctrl.id = V4L2_CID_HUE;
 217         ctrl.value = 0;
 218         if(usbvision->user)
 219                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
 220         return sprintf(buf, "%d\n", ctrl.value);
 221 }
 222 static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
 223
 224 static ssize_t show_contrast(struct device *cd,
 225                              struct device_attribute *attr, char *buf)
 226 {
 227         struct video_device *vdev =
 228                 container_of(cd, struct video_device, dev);
 229         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 230         struct v4l2_control ctrl;
 231         ctrl.id = V4L2_CID_CONTRAST;
 232         ctrl.value = 0;
 233         if(usbvision->user)
 234                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
 235         return sprintf(buf, "%d\n", ctrl.value);
 236 }
 237 static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
 238
 239 static ssize_t show_brightness(struct device *cd,
 240                                struct device_attribute *attr, char *buf)
 241 {
 242         struct video_device *vdev =
 243                 container_of(cd, struct video_device, dev);
 244         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 245         struct v4l2_control ctrl;
 246         ctrl.id = V4L2_CID_BRIGHTNESS;
 247         ctrl.value = 0;
 248         if(usbvision->user)
 249                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
 250         return sprintf(buf, "%d\n", ctrl.value);
 251 }
 252 static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
 253
 254 static ssize_t show_saturation(struct device *cd,
 255                                struct device_attribute *attr, char *buf)
 256 {
 257         struct video_device *vdev =
 258                 container_of(cd, struct video_device, dev);
 259         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 260         struct v4l2_control ctrl;
 261         ctrl.id = V4L2_CID_SATURATION;
 262         ctrl.value = 0;
 263         if(usbvision->user)
 264                 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
 265         return sprintf(buf, "%d\n", ctrl.value);
 266 }
 267 static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
 268
 269 static ssize_t show_streaming(struct device *cd,
 270                               struct device_attribute *attr, char *buf)
 271 {
 272         struct video_device *vdev =
 273                 container_of(cd, struct video_device, dev);
 274         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 275         return sprintf(buf, "%s\n",
 276                        YES_NO(usbvision->streaming==Stream_On?1:0));
 277 }
 278 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
 279
 280 static ssize_t show_compression(struct device *cd,
 281                                 struct device_attribute *attr, char *buf)
 282 {
 283         struct video_device *vdev =
 284                 container_of(cd, struct video_device, dev);
 285         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 286         return sprintf(buf, "%s\n",
 287                        YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
 288 }
 289 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
 290
 291 static ssize_t show_device_bridge(struct device *cd,
 292                                   struct device_attribute *attr, char *buf)
 293 {
 294         struct video_device *vdev =
 295                 container_of(cd, struct video_device, dev);
 296         struct usb_usbvision *usbvision = video_get_drvdata(vdev);
 297         return sprintf(buf, "%d\n", usbvision->bridgeType);
 298 }
 299 static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
 300
 301 static void usbvision_create_sysfs(struct video_device *vdev)
 302 {
 303         int res;
 304         if (!vdev)
 305                 return;
 306         do {
 307                 res = device_create_file(&vdev->dev, &dev_attr_version);
 308                 if (res<0)
 309                         break;
 310                 res = device_create_file(&vdev->dev, &dev_attr_model);
 311                 if (res<0)
 312                         break;
 313                 res = device_create_file(&vdev->dev, &dev_attr_hue);
 314                 if (res<0)
 315                         break;
 316                 res = device_create_file(&vdev->dev, &dev_attr_contrast);
 317                 if (res<0)
 318                         break;
 319                 res = device_create_file(&vdev->dev, &dev_attr_brightness);
 320                 if (res<0)
 321                         break;
 322                 res = device_create_file(&vdev->dev, &dev_attr_saturation);
 323                 if (res<0)
 324                         break;
 325                 res = device_create_file(&vdev->dev, &dev_attr_streaming);
 326                 if (res<0)
 327                         break;
 328                 res = device_create_file(&vdev->dev, &dev_attr_compression);
 329                 if (res<0)
 330                         break;
 331                 res = device_create_file(&vdev->dev, &dev_attr_bridge);
 332                 if (res>=0)
 333                         return;
 334         } while (0);
 335
 336         err("%s error: %d\n", __func__, res);
 337 }
 338
 339 static void usbvision_remove_sysfs(struct video_device *vdev)
 340 {
 341         if (vdev) {
 342                 device_remove_file(&vdev->dev, &dev_attr_version);
 343                 device_remove_file(&vdev->dev, &dev_attr_model);
 344                 device_remove_file(&vdev->dev, &dev_attr_hue);
 345                 device_remove_file(&vdev->dev, &dev_attr_contrast);
 346                 device_remove_file(&vdev->dev, &dev_attr_brightness);
 347                 device_remove_file(&vdev->dev, &dev_attr_saturation);
 348                 device_remove_file(&vdev->dev, &dev_attr_streaming);
 349                 device_remove_file(&vdev->dev, &dev_attr_compression);
 350                 device_remove_file(&vdev->dev, &dev_attr_bridge);
 351         }
 352 }
 353
 354 /*
 355  * usbvision_open()
 356  *
 357  * This is part of Video 4 Linux API. The driver can be opened by one
 358  * client only (checks internal counter 'usbvision->user'). The procedure
 359  * then allocates buffers needed for video processing.
 360  *
 361  */
 362 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
 363 {
 364         struct usb_usbvision *usbvision = video_drvdata(file);
 365         int errCode = 0;
 366
 367         PDEBUG(DBG_IO, "open");
 368
 369         lock_kernel();
 370         usbvision_reset_powerOffTimer(usbvision);
 371
 372         if (usbvision->user)
 373                 errCode = -EBUSY;
 374         else {
 375                 /* Allocate memory for the scratch ring buffer */
 376                 errCode = usbvision_scratch_alloc(usbvision);
 377                 if (isocMode==ISOC_MODE_COMPRESS) {
 378                         /* Allocate intermediate decompression buffers
 379                            only if needed */
 380                         errCode = usbvision_decompress_alloc(usbvision);
 381                 }
 382                 if (errCode) {
 383                         /* Deallocate all buffers if trouble */
 384                         usbvision_scratch_free(usbvision);
 385                         usbvision_decompress_free(usbvision);
 386                 }
 387         }
 388
 389         /* If so far no errors then we shall start the camera */
 390         if (!errCode) {
 391                 mutex_lock(&usbvision->lock);
 392                 if (usbvision->power == 0) {
 393                         usbvision_power_on(usbvision);
 394                         usbvision_i2c_register(usbvision);
 395                 }
 396
 397                 /* Send init sequence only once, it's large! */
 398                 if (!usbvision->initialized) {
 399                         int setup_ok = 0;
 400                         setup_ok = usbvision_setup(usbvision,isocMode);
 401                         if (setup_ok)
 402                                 usbvision->initialized = 1;
 403                         else
 404                                 errCode = -EBUSY;
 405                 }
 406
 407                 if (!errCode) {
 408                         usbvision_begin_streaming(usbvision);
 409                         errCode = usbvision_init_isoc(usbvision);
 410                         /* device must be initialized before isoc transfer */
 411                         usbvision_muxsel(usbvision,0);
 412                         usbvision->user++;
 413                 } else {
 414                         if (PowerOnAtOpen) {
 415                                 usbvision_i2c_unregister(usbvision);
 416                                 usbvision_power_off(usbvision);
 417                                 usbvision->initialized = 0;
 418                         }
 419                 }
 420                 mutex_unlock(&usbvision->lock);
 421         }
 422
 423         /* prepare queues */
 424         usbvision_empty_framequeues(usbvision);
 425
 426         PDEBUG(DBG_IO, "success");
 427         unlock_kernel();
 428         return errCode;
 429 }
 430
 431 /*
 432  * usbvision_v4l2_close()
 433  *
 434  * This is part of Video 4 Linux API. The procedure
 435  * stops streaming and deallocates all buffers that were earlier
 436  * allocated in usbvision_v4l2_open().
 437  *
 438  */
 439 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
 440 {
 441         struct usb_usbvision *usbvision = video_drvdata(file);
 442
 443         PDEBUG(DBG_IO, "close");
 444         mutex_lock(&usbvision->lock);
 445
 446         usbvision_audio_off(usbvision);
 447         usbvision_restart_isoc(usbvision);
 448         usbvision_stop_isoc(usbvision);
 449
 450         usbvision_decompress_free(usbvision);
 451         usbvision_frames_free(usbvision);
 452         usbvision_empty_framequeues(usbvision);
 453         usbvision_scratch_free(usbvision);
 454
 455         usbvision->user--;
 456
 457         if (PowerOnAtOpen) {
 458                 /* power off in a little while
 459                    to avoid off/on every close/open short sequences */
 460                 usbvision_set_powerOffTimer(usbvision);
 461                 usbvision->initialized = 0;
 462         }
 463
 464         mutex_unlock(&usbvision->lock);
 465
 466         if (usbvision->remove_pending) {
 467                 printk(KERN_INFO "%s: Final disconnect\n", __func__);
 468                 usbvision_release(usbvision);
 469         }
 470
 471         PDEBUG(DBG_IO, "success");
 472         return 0;
 473 }
 474
 475
 476 /*
 477  * usbvision_ioctl()
 478  *
 479  * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
 480  *
 481  */
 482 #ifdef CONFIG_VIDEO_ADV_DEBUG
 483 static int vidioc_g_register (struct file *file, void *priv,
 484                                 struct v4l2_register *reg)
 485 {
 486         struct usb_usbvision *usbvision = video_drvdata(file);
 487         int errCode;
 488
 489         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
 490                 return -EINVAL;
 491         /* NT100x has a 8-bit register space */
 492         errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
 493         if (errCode < 0) {
 494                 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
 495                     __func__, errCode);
 496                 return errCode;
 497         }
 498         reg->val = errCode;
 499         return 0;
 500 }
 501
 502 static int vidioc_s_register (struct file *file, void *priv,
 503                                 struct v4l2_register *reg)
 504 {
 505         struct usb_usbvision *usbvision = video_drvdata(file);
 506         int errCode;
 507
 508         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
 509                 return -EINVAL;
 510         /* NT100x has a 8-bit register space */
 511         errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
 512         if (errCode < 0) {
 513                 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
 514                     __func__, errCode);
 515                 return errCode;
 516         }
 517         return 0;
 518 }
 519 #endif
 520
 521 static int vidioc_querycap (struct file *file, void  *priv,
 522                                         struct v4l2_capability *vc)
 523 {
 524         struct usb_usbvision *usbvision = video_drvdata(file);
 525
 526         strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
 527         strlcpy(vc->card,
 528                 usbvision_device_data[usbvision->DevModel].ModelString,
 529                 sizeof(vc->card));
 530         strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
 531                 sizeof(vc->bus_info));
 532         vc->version = USBVISION_DRIVER_VERSION;
 533         vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
 534                 V4L2_CAP_AUDIO |
 535                 V4L2_CAP_READWRITE |
 536                 V4L2_CAP_STREAMING |
 537                 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
 538         return 0;
 539 }
 540
 541 static int vidioc_enum_input (struct file *file, void *priv,
 542                                 struct v4l2_input *vi)
 543 {
 544         struct usb_usbvision *usbvision = video_drvdata(file);
 545         int chan;
 546
 547         if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
 548                 return -EINVAL;
 549         if (usbvision->have_tuner) {
 550                 chan = vi->index;
 551         } else {
 552                 chan = vi->index + 1; /*skip Television string*/
 553         }
 554         /* Determine the requested input characteristics
 555            specific for each usbvision card model */
 556         switch(chan) {
 557         case 0:
 558                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
 559                         strcpy(vi->name, "White Video Input");
 560                 } else {
 561                         strcpy(vi->name, "Television");
 562                         vi->type = V4L2_INPUT_TYPE_TUNER;
 563                         vi->audioset = 1;
 564                         vi->tuner = chan;
 565                         vi->std = USBVISION_NORMS;
 566                 }
 567                 break;
 568         case 1:
 569                 vi->type = V4L2_INPUT_TYPE_CAMERA;
 570                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
 571                         strcpy(vi->name, "Green Video Input");
 572                 } else {
 573                         strcpy(vi->name, "Composite Video Input");
 574                 }
 575                 vi->std = V4L2_STD_PAL;
 576                 break;
 577         case 2:
 578                 vi->type = V4L2_INPUT_TYPE_CAMERA;
 579                 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
 580                         strcpy(vi->name, "Yellow Video Input");
 581                 } else {
 582                         strcpy(vi->name, "S-Video Input");
 583                 }
 584                 vi->std = V4L2_STD_PAL;
 585                 break;
 586         case 3:
 587                 vi->type = V4L2_INPUT_TYPE_CAMERA;
 588                 strcpy(vi->name, "Red Video Input");
 589                 vi->std = V4L2_STD_PAL;
 590                 break;
 591         }
 592         return 0;
 593 }
 594
 595 static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
 596 {
 597         struct usb_usbvision *usbvision = video_drvdata(file);
 598
 599         *input = usbvision->ctl_input;
 600         return 0;
 601 }
 602
 603 static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
 604 {
 605         struct usb_usbvision *usbvision = video_drvdata(file);
 606
 607         if ((input >= usbvision->video_inputs) || (input < 0) )
 608                 return -EINVAL;
 609
 610         mutex_lock(&usbvision->lock);
 611         usbvision_muxsel(usbvision, input);
 612         usbvision_set_input(usbvision);
 613         usbvision_set_output(usbvision,
 614                              usbvision->curwidth,
 615                              usbvision->curheight);
 616         mutex_unlock(&usbvision->lock);
 617         return 0;
 618 }
 619
 620 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
 621 {
 622         struct usb_usbvision *usbvision = video_drvdata(file);
 623
 624         usbvision->tvnormId=*id;
 625
 626         mutex_lock(&usbvision->lock);
 627         call_i2c_clients(usbvision, VIDIOC_S_STD,
 628                          &usbvision->tvnormId);
 629         mutex_unlock(&usbvision->lock);
 630         /* propagate the change to the decoder */
 631         usbvision_muxsel(usbvision, usbvision->ctl_input);
 632
 633         return 0;
 634 }
 635
 636 static int vidioc_g_tuner (struct file *file, void *priv,
 637                                 struct v4l2_tuner *vt)
 638 {
 639         struct usb_usbvision *usbvision = video_drvdata(file);
 640
 641         if (!usbvision->have_tuner || vt->index)        // Only tuner 0
 642                 return -EINVAL;
 643         if(usbvision->radio) {
 644                 strcpy(vt->name, "Radio");
 645                 vt->type = V4L2_TUNER_RADIO;
 646         } else {
 647                 strcpy(vt->name, "Television");
 648         }
 649         /* Let clients fill in the remainder of this struct */
 650         call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
 651
 652         return 0;
 653 }
 654
 655 static int vidioc_s_tuner (struct file *file, void *priv,
 656                                 struct v4l2_tuner *vt)
 657 {
 658         struct usb_usbvision *usbvision = video_drvdata(file);
 659
 660         // Only no or one tuner for now
 661         if (!usbvision->have_tuner || vt->index)
 662                 return -EINVAL;
 663         /* let clients handle this */
 664         call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
 665
 666         return 0;
 667 }
 668
 669 static int vidioc_g_frequency (struct file *file, void *priv,
 670                                 struct v4l2_frequency *freq)
 671 {
 672         struct usb_usbvision *usbvision = video_drvdata(file);
 673
 674         freq->tuner = 0; // Only one tuner
 675         if(usbvision->radio) {
 676                 freq->type = V4L2_TUNER_RADIO;
 677         } else {
 678                 freq->type = V4L2_TUNER_ANALOG_TV;
 679         }
 680         freq->frequency = usbvision->freq;
 681
 682         return 0;
 683 }
 684
 685 static int vidioc_s_frequency (struct file *file, void *priv,
 686                                 struct v4l2_frequency *freq)
 687 {
 688         struct usb_usbvision *usbvision = video_drvdata(file);
 689
 690         // Only no or one tuner for now
 691         if (!usbvision->have_tuner || freq->tuner)
 692                 return -EINVAL;
 693
 694         usbvision->freq = freq->frequency;
 695         call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
 696
 697         return 0;
 698 }
 699
 700 static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
 701 {
 702         struct usb_usbvision *usbvision = video_drvdata(file);
 703
 704         memset(a,0,sizeof(*a));
 705         if(usbvision->radio) {
 706                 strcpy(a->name,"Radio");
 707         } else {
 708                 strcpy(a->name, "TV");
 709         }
 710
 711         return 0;
 712 }
 713
 714 static int vidioc_s_audio (struct file *file, void *fh,
 715                           struct v4l2_audio *a)
 716 {
 717         if(a->index) {
 718                 return -EINVAL;
 719         }
 720
 721         return 0;
 722 }
 723
 724 static int vidioc_queryctrl (struct file *file, void *priv,
 725                             struct v4l2_queryctrl *ctrl)
 726 {
 727         struct usb_usbvision *usbvision = video_drvdata(file);
 728         int id=ctrl->id;
 729
 730         memset(ctrl,0,sizeof(*ctrl));
 731         ctrl->id=id;
 732
 733         call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
 734
 735         if (!ctrl->type)
 736                 return -EINVAL;
 737
 738         return 0;
 739 }
 740
 741 static int vidioc_g_ctrl (struct file *file, void *priv,
 742                                 struct v4l2_control *ctrl)
 743 {
 744         struct usb_usbvision *usbvision = video_drvdata(file);
 745         call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
 746
 747         return 0;
 748 }
 749
 750 static int vidioc_s_ctrl (struct file *file, void *priv,
 751                                 struct v4l2_control *ctrl)
 752 {
 753         struct usb_usbvision *usbvision = video_drvdata(file);
 754         call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
 755
 756         return 0;
 757 }
 758
 759 static int vidioc_reqbufs (struct file *file,
 760                            void *priv, struct v4l2_requestbuffers *vr)
 761 {
 762         struct usb_usbvision *usbvision = video_drvdata(file);
 763         int ret;
 764
 765         RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
 766
 767         /* Check input validity:
 768            the user must do a VIDEO CAPTURE and MMAP method. */
 769         if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
 770            (vr->memory != V4L2_MEMORY_MMAP))
 771                 return -EINVAL;
 772
 773         if(usbvision->streaming == Stream_On) {
 774                 if ((ret = usbvision_stream_interrupt(usbvision)))
 775                         return ret;
 776         }
 777
 778         usbvision_frames_free(usbvision);
 779         usbvision_empty_framequeues(usbvision);
 780         vr->count = usbvision_frames_alloc(usbvision,vr->count);
 781
 782         usbvision->curFrame = NULL;
 783
 784         return 0;
 785 }
 786
 787 static int vidioc_querybuf (struct file *file,
 788                             void *priv, struct v4l2_buffer *vb)
 789 {
 790         struct usb_usbvision *usbvision = video_drvdata(file);
 791         struct usbvision_frame *frame;
 792
 793         /* FIXME : must control
 794            that buffers are mapped (VIDIOC_REQBUFS has been called) */
 795         if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
 796                 return -EINVAL;
 797         }
 798         if(vb->index>=usbvision->num_frames)  {
 799                 return -EINVAL;
 800         }
 801         /* Updating the corresponding frame state */
 802         vb->flags = 0;
 803         frame = &usbvision->frame[vb->index];
 804         if(frame->grabstate >= FrameState_Ready)
 805                 vb->flags |= V4L2_BUF_FLAG_QUEUED;
 806         if(frame->grabstate >= FrameState_Done)
 807                 vb->flags |= V4L2_BUF_FLAG_DONE;
 808         if(frame->grabstate == FrameState_Unused)
 809                 vb->flags |= V4L2_BUF_FLAG_MAPPED;
 810         vb->memory = V4L2_MEMORY_MMAP;
 811
 812         vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
 813
 814         vb->memory = V4L2_MEMORY_MMAP;
 815         vb->field = V4L2_FIELD_NONE;
 816         vb->length = usbvision->curwidth*
 817                 usbvision->curheight*
 818                 usbvision->palette.bytes_per_pixel;
 819         vb->timestamp = usbvision->frame[vb->index].timestamp;
 820         vb->sequence = usbvision->frame[vb->index].sequence;
 821         return 0;
 822 }
 823
 824 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
 825 {
 826         struct usb_usbvision *usbvision = video_drvdata(file);
 827         struct usbvision_frame *frame;
 828         unsigned long lock_flags;
 829
 830         /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
 831         if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
 832                 return -EINVAL;
 833         }
 834         if(vb->index>=usbvision->num_frames)  {
 835                 return -EINVAL;
 836         }
 837
 838         frame = &usbvision->frame[vb->index];
 839
 840         if (frame->grabstate != FrameState_Unused) {
 841                 return -EAGAIN;
 842         }
 843
 844         /* Mark it as ready and enqueue frame */
 845         frame->grabstate = FrameState_Ready;
 846         frame->scanstate = ScanState_Scanning;
 847         frame->scanlength = 0;  /* Accumulated in usbvision_parse_data() */
 848
 849         vb->flags &= ~V4L2_BUF_FLAG_DONE;
 850
 851         /* set v4l2_format index */
 852         frame->v4l2_format = usbvision->palette;
 853
 854         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
 855         list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
 856         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
 857
 858         return 0;
 859 }
 860
 861 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
 862 {
 863         struct usb_usbvision *usbvision = video_drvdata(file);
 864         int ret;
 865         struct usbvision_frame *f;
 866         unsigned long lock_flags;
 867
 868         if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 869                 return -EINVAL;
 870
 871         if (list_empty(&(usbvision->outqueue))) {
 872                 if (usbvision->streaming == Stream_Idle)
 873                         return -EINVAL;
 874                 ret = wait_event_interruptible
 875                         (usbvision->wait_frame,
 876                          !list_empty(&(usbvision->outqueue)));
 877                 if (ret)
 878                         return ret;
 879         }
 880
 881         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
 882         f = list_entry(usbvision->outqueue.next,
 883                        struct usbvision_frame, frame);
 884         list_del(usbvision->outqueue.next);
 885         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
 886
 887         f->grabstate = FrameState_Unused;
 888
 889         vb->memory = V4L2_MEMORY_MMAP;
 890         vb->flags = V4L2_BUF_FLAG_MAPPED |
 891                 V4L2_BUF_FLAG_QUEUED |
 892                 V4L2_BUF_FLAG_DONE;
 893         vb->index = f->index;
 894         vb->sequence = f->sequence;
 895         vb->timestamp = f->timestamp;
 896         vb->field = V4L2_FIELD_NONE;
 897         vb->bytesused = f->scanlength;
 898
 899         return 0;
 900 }
 901
 902 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 903 {
 904         struct usb_usbvision *usbvision = video_drvdata(file);
 905         int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
 906
 907         usbvision->streaming = Stream_On;
 908         call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
 909
 910         return 0;
 911 }
 912
 913 static int vidioc_streamoff(struct file *file,
 914                             void *priv, enum v4l2_buf_type type)
 915 {
 916         struct usb_usbvision *usbvision = video_drvdata(file);
 917         int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
 918
 919         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 920                 return -EINVAL;
 921
 922         if(usbvision->streaming == Stream_On) {
 923                 usbvision_stream_interrupt(usbvision);
 924                 /* Stop all video streamings */
 925                 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
 926         }
 927         usbvision_empty_framequeues(usbvision);
 928
 929         return 0;
 930 }
 931
 932 static int vidioc_enum_fmt_vid_cap (struct file *file, void  *priv,
 933                                         struct v4l2_fmtdesc *vfd)
 934 {
 935         if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
 936                 return -EINVAL;
 937         }
 938         vfd->flags = 0;
 939         vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 940         strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
 941         vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
 942         memset(vfd->reserved, 0, sizeof(vfd->reserved));
 943         return 0;
 944 }
 945
 946 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
 947                                         struct v4l2_format *vf)
 948 {
 949         struct usb_usbvision *usbvision = video_drvdata(file);
 950         vf->fmt.pix.width = usbvision->curwidth;
 951         vf->fmt.pix.height = usbvision->curheight;
 952         vf->fmt.pix.pixelformat = usbvision->palette.format;
 953         vf->fmt.pix.bytesperline =
 954                 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
 955         vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
 956         vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 957         vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
 958
 959         return 0;
 960 }
 961
 962 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
 963                                struct v4l2_format *vf)
 964 {
 965         struct usb_usbvision *usbvision = video_drvdata(file);
 966         int formatIdx;
 967
 968         /* Find requested format in available ones */
 969         for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
 970                 if(vf->fmt.pix.pixelformat ==
 971                    usbvision_v4l2_format[formatIdx].format) {
 972                         usbvision->palette = usbvision_v4l2_format[formatIdx];
 973                         break;
 974                 }
 975         }
 976         /* robustness */
 977         if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
 978                 return -EINVAL;
 979         }
 980         RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
 981         RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
 982
 983         vf->fmt.pix.bytesperline = vf->fmt.pix.width*
 984                 usbvision->palette.bytes_per_pixel;
 985         vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
 986
 987         return 0;
 988 }
 989
 990 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 991                                struct v4l2_format *vf)
 992 {
 993         struct usb_usbvision *usbvision = video_drvdata(file);
 994         int ret;
 995
 996         if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
 997                 return ret;
 998         }
 999
1000         /* stop io in case it is already in progress */
1001         if(usbvision->streaming == Stream_On) {
1002                 if ((ret = usbvision_stream_interrupt(usbvision)))
1003                         return ret;
1004         }
1005         usbvision_frames_free(usbvision);
1006         usbvision_empty_framequeues(usbvision);
1007
1008         usbvision->curFrame = NULL;
1009
1010         /* by now we are committed to the new data... */
1011         mutex_lock(&usbvision->lock);
1012         usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1013         mutex_unlock(&usbvision->lock);
1014
1015         return 0;
1016 }
1017
1018 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1019                       size_t count, loff_t *ppos)
1020 {
1021         struct usb_usbvision *usbvision = video_drvdata(file);
1022         int noblock = file->f_flags & O_NONBLOCK;
1023         unsigned long lock_flags;
1024
1025         int ret,i;
1026         struct usbvision_frame *frame;
1027
1028         PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
1029                (unsigned long)count, noblock);
1030
1031         if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1032                 return -EFAULT;
1033
1034         /* This entry point is compatible with the mmap routines
1035            so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1036            to get frames or call read on the device. */
1037         if(!usbvision->num_frames) {
1038                 /* First, allocate some frames to work with
1039                    if this has not been done with VIDIOC_REQBUF */
1040                 usbvision_frames_free(usbvision);
1041                 usbvision_empty_framequeues(usbvision);
1042                 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1043         }
1044
1045         if(usbvision->streaming != Stream_On) {
1046                 /* no stream is running, make it running ! */
1047                 usbvision->streaming = Stream_On;
1048                 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1049         }
1050
1051         /* Then, enqueue as many frames as possible
1052            (like a user of VIDIOC_QBUF would do) */
1053         for(i=0;i<usbvision->num_frames;i++) {
1054                 frame = &usbvision->frame[i];
1055                 if(frame->grabstate == FrameState_Unused) {
1056                         /* Mark it as ready and enqueue frame */
1057                         frame->grabstate = FrameState_Ready;
1058                         frame->scanstate = ScanState_Scanning;
1059                         /* Accumulated in usbvision_parse_data() */
1060                         frame->scanlength = 0;
1061
1062                         /* set v4l2_format index */
1063                         frame->v4l2_format = usbvision->palette;
1064
1065                         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1066                         list_add_tail(&frame->frame, &usbvision->inqueue);
1067                         spin_unlock_irqrestore(&usbvision->queue_lock,
1068                                                lock_flags);
1069                 }
1070         }
1071
1072         /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1073         if (list_empty(&(usbvision->outqueue))) {
1074                 if(noblock)
1075                         return -EAGAIN;
1076
1077                 ret = wait_event_interruptible
1078                         (usbvision->wait_frame,
1079                          !list_empty(&(usbvision->outqueue)));
1080                 if (ret)
1081                         return ret;
1082         }
1083
1084         spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1085         frame = list_entry(usbvision->outqueue.next,
1086                            struct usbvision_frame, frame);
1087         list_del(usbvision->outqueue.next);
1088         spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1089
1090         /* An error returns an empty frame */
1091         if (frame->grabstate == FrameState_Error) {
1092                 frame->bytes_read = 0;
1093                 return 0;
1094         }
1095
1096         PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1097                __func__,
1098                frame->index, frame->bytes_read, frame->scanlength);
1099
1100         /* copy bytes to user space; we allow for partials reads */
1101         if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1102                 count = frame->scanlength - frame->bytes_read;
1103
1104         if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1105                 return -EFAULT;
1106         }
1107
1108         frame->bytes_read += count;
1109         PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1110                __func__,
1111                (unsigned long)count, frame->bytes_read);
1112
1113         /* For now, forget the frame if it has not been read in one shot. */
1114 /*      if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1115                 frame->bytes_read = 0;
1116
1117                 /* Mark it as available to be used again. */
1118                 frame->grabstate = FrameState_Unused;
1119 /*      } */
1120
1121         return count;
1122 }
1123
1124 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1125 {
1126         unsigned long size = vma->vm_end - vma->vm_start,
1127                 start = vma->vm_start;
1128         void *pos;
1129         u32 i;
1130         struct usb_usbvision *usbvision = video_drvdata(file);
1131
1132         PDEBUG(DBG_MMAP, "mmap");
1133
1134         mutex_lock(&usbvision->lock);
1135
1136         if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1137                 mutex_unlock(&usbvision->lock);
1138                 return -EFAULT;
1139         }
1140
1141         if (!(vma->vm_flags & VM_WRITE) ||
1142             size != PAGE_ALIGN(usbvision->max_frame_size)) {
1143                 mutex_unlock(&usbvision->lock);
1144                 return -EINVAL;
1145         }
1146
1147         for (i = 0; i < usbvision->num_frames; i++) {
1148                 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1149                     vma->vm_pgoff)
1150                         break;
1151         }
1152         if (i == usbvision->num_frames) {
1153                 PDEBUG(DBG_MMAP,
1154                        "mmap: user supplied mapping address is out of range");
1155                 mutex_unlock(&usbvision->lock);
1156                 return -EINVAL;
1157         }
1158
1159         /* VM_IO is eventually going to replace PageReserved altogether */
1160         vma->vm_flags |= VM_IO;
1161         vma->vm_flags |= VM_RESERVED;   /* avoid to swap out this VMA */
1162
1163         pos = usbvision->frame[i].data;
1164         while (size > 0) {
1165
1166                 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1167                         PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1168                         mutex_unlock(&usbvision->lock);
1169                         return -EAGAIN;
1170                 }
1171                 start += PAGE_SIZE;
1172                 pos += PAGE_SIZE;
1173                 size -= PAGE_SIZE;
1174         }
1175
1176         mutex_unlock(&usbvision->lock);
1177         return 0;
1178 }
1179
1180
1181 /*
1182  * Here comes the stuff for radio on usbvision based devices
1183  *
1184  */
1185 static int usbvision_radio_open(struct inode *inode, struct file *file)
1186 {
1187         struct usb_usbvision *usbvision = video_drvdata(file);
1188         int errCode = 0;
1189
1190         PDEBUG(DBG_IO, "%s:", __func__);
1191
1192         mutex_lock(&usbvision->lock);
1193
1194         if (usbvision->user) {
1195                 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
1196                 errCode = -EBUSY;
1197         }
1198         else {
1199                 if(PowerOnAtOpen) {
1200                         usbvision_reset_powerOffTimer(usbvision);
1201                         if (usbvision->power == 0) {
1202                                 usbvision_power_on(usbvision);
1203                                 usbvision_i2c_register(usbvision);
1204                         }
1205                 }
1206
1207                 /* Alternate interface 1 is is the biggest frame size */
1208                 errCode = usbvision_set_alternate(usbvision);
1209                 if (errCode < 0) {
1210                         usbvision->last_error = errCode;
1211                         errCode = -EBUSY;
1212                         goto out;
1213                 }
1214
1215                 // If so far no errors then we shall start the radio
1216                 usbvision->radio = 1;
1217                 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1218                 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1219                 usbvision->user++;
1220         }
1221
1222         if (errCode) {
1223                 if (PowerOnAtOpen) {
1224                         usbvision_i2c_unregister(usbvision);
1225                         usbvision_power_off(usbvision);
1226                         usbvision->initialized = 0;
1227                 }
1228         }
1229 out:
1230         mutex_unlock(&usbvision->lock);
1231         return errCode;
1232 }
1233
1234
1235 static int usbvision_radio_close(struct inode *inode, struct file *file)
1236 {
1237         struct usb_usbvision *usbvision = video_drvdata(file);
1238         int errCode = 0;
1239
1240         PDEBUG(DBG_IO, "");
1241
1242         mutex_lock(&usbvision->lock);
1243
1244         /* Set packet size to 0 */
1245         usbvision->ifaceAlt=0;
1246         errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1247                                     usbvision->ifaceAlt);
1248
1249         usbvision_audio_off(usbvision);
1250         usbvision->radio=0;
1251         usbvision->user--;
1252
1253         if (PowerOnAtOpen) {
1254                 usbvision_set_powerOffTimer(usbvision);
1255                 usbvision->initialized = 0;
1256         }
1257
1258         mutex_unlock(&usbvision->lock);
1259
1260         if (usbvision->remove_pending) {
1261                 printk(KERN_INFO "%s: Final disconnect\n", __func__);
1262                 usbvision_release(usbvision);
1263         }
1264
1265         PDEBUG(DBG_IO, "success");
1266         return errCode;
1267 }
1268
1269 /*
1270  * Here comes the stuff for vbi on usbvision based devices
1271  *
1272  */
1273 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1274 {
1275         /* TODO */
1276         return -ENODEV;
1277 }
1278
1279 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1280 {
1281         /* TODO */
1282         return -ENODEV;
1283 }
1284
1285 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1286                                  unsigned int cmd, void *arg)
1287 {
1288         /* TODO */
1289         return -ENOIOCTLCMD;
1290 }
1291
1292 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1293                        unsigned int cmd, unsigned long arg)
1294 {
1295         return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1296 }
1297
1298
1299 //
1300 // Video registration stuff
1301 //
1302
1303 // Video template
1304 static const struct file_operations usbvision_fops = {
1305         .owner             = THIS_MODULE,
1306         .open           = usbvision_v4l2_open,
1307         .release        = usbvision_v4l2_close,
1308         .read           = usbvision_v4l2_read,
1309         .mmap           = usbvision_v4l2_mmap,
1310         .ioctl          = video_ioctl2,
1311         .llseek         = no_llseek,
1312 /*      .poll          = video_poll, */
1313         .compat_ioctl  = v4l_compat_ioctl32,
1314 };
1315
1316 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
1317         .vidioc_querycap      = vidioc_querycap,
1318         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1319         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1320         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1321         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1322         .vidioc_reqbufs       = vidioc_reqbufs,
1323         .vidioc_querybuf      = vidioc_querybuf,
1324         .vidioc_qbuf          = vidioc_qbuf,
1325         .vidioc_dqbuf         = vidioc_dqbuf,
1326         .vidioc_s_std         = vidioc_s_std,
1327         .vidioc_enum_input    = vidioc_enum_input,
1328         .vidioc_g_input       = vidioc_g_input,
1329         .vidioc_s_input       = vidioc_s_input,
1330         .vidioc_queryctrl     = vidioc_queryctrl,
1331         .vidioc_g_audio       = vidioc_g_audio,
1332         .vidioc_s_audio       = vidioc_s_audio,
1333         .vidioc_g_ctrl        = vidioc_g_ctrl,
1334         .vidioc_s_ctrl        = vidioc_s_ctrl,
1335         .vidioc_streamon      = vidioc_streamon,
1336         .vidioc_streamoff     = vidioc_streamoff,
1337 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1338 /*      .vidiocgmbuf          = vidiocgmbuf, */
1339 #endif
1340         .vidioc_g_tuner       = vidioc_g_tuner,
1341         .vidioc_s_tuner       = vidioc_s_tuner,
1342         .vidioc_g_frequency   = vidioc_g_frequency,
1343         .vidioc_s_frequency   = vidioc_s_frequency,
1344 #ifdef CONFIG_VIDEO_ADV_DEBUG
1345         .vidioc_g_register    = vidioc_g_register,
1346         .vidioc_s_register    = vidioc_s_register,
1347 #endif
1348 };
1349
1350 static struct video_device usbvision_video_template = {
1351         .fops           = &usbvision_fops,
1352         .ioctl_ops      = &usbvision_ioctl_ops,
1353         .name           = "usbvision-video",
1354         .release        = video_device_release,
1355         .minor          = -1,
1356         .tvnorms              = USBVISION_NORMS,
1357         .current_norm         = V4L2_STD_PAL
1358 };
1359
1360
1361 // Radio template
1362 static const struct file_operations usbvision_radio_fops = {
1363         .owner             = THIS_MODULE,
1364         .open           = usbvision_radio_open,
1365         .release        = usbvision_radio_close,
1366         .ioctl          = video_ioctl2,
1367         .llseek         = no_llseek,
1368         .compat_ioctl  = v4l_compat_ioctl32,
1369 };
1370
1371 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
1372         .vidioc_querycap      = vidioc_querycap,
1373         .vidioc_enum_input    = vidioc_enum_input,
1374         .vidioc_g_input       = vidioc_g_input,
1375         .vidioc_s_input       = vidioc_s_input,
1376         .vidioc_queryctrl     = vidioc_queryctrl,
1377         .vidioc_g_audio       = vidioc_g_audio,
1378         .vidioc_s_audio       = vidioc_s_audio,
1379         .vidioc_g_ctrl        = vidioc_g_ctrl,
1380         .vidioc_s_ctrl        = vidioc_s_ctrl,
1381         .vidioc_g_tuner       = vidioc_g_tuner,
1382         .vidioc_s_tuner       = vidioc_s_tuner,
1383         .vidioc_g_frequency   = vidioc_g_frequency,
1384         .vidioc_s_frequency   = vidioc_s_frequency,
1385 };
1386
1387 static struct video_device usbvision_radio_template = {
1388         .fops           = &usbvision_radio_fops,
1389         .name           = "usbvision-radio",
1390         .release        = video_device_release,
1391         .minor          = -1,
1392         .ioctl_ops      = &usbvision_radio_ioctl_ops,
1393
1394         .tvnorms              = USBVISION_NORMS,
1395         .current_norm         = V4L2_STD_PAL
1396 };
1397
1398 // vbi template
1399 static const struct file_operations usbvision_vbi_fops = {
1400         .owner             = THIS_MODULE,
1401         .open           = usbvision_vbi_open,
1402         .release        = usbvision_vbi_close,
1403         .ioctl          = usbvision_vbi_ioctl,
1404         .llseek         = no_llseek,
1405         .compat_ioctl  = v4l_compat_ioctl32,
1406 };
1407
1408 static struct video_device usbvision_vbi_template=
1409 {
1410         .fops           = &usbvision_vbi_fops,
1411         .release        = video_device_release,
1412         .name           = "usbvision-vbi",
1413         .minor          = -1,
1414 };
1415
1416
1417 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1418                                         struct video_device *vdev_template,
1419                                         char *name)
1420 {
1421         struct usb_device *usb_dev = usbvision->dev;
1422         struct video_device *vdev;
1423
1424         if (usb_dev == NULL) {
1425                 err("%s: usbvision->dev is not set", __func__);
1426                 return NULL;
1427         }
1428
1429         vdev = video_device_alloc();
1430         if (NULL == vdev) {
1431                 return NULL;
1432         }
1433         *vdev = *vdev_template;
1434 //      vdev->minor   = -1;
1435         vdev->parent  = &usb_dev->dev;
1436         snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1437         video_set_drvdata(vdev, usbvision);
1438         return vdev;
1439 }
1440
1441 // unregister video4linux devices
1442 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1443 {
1444         // vbi Device:
1445         if (usbvision->vbi) {
1446                 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1447                        usbvision->vbi->minor & 0x1f);
1448                 if (usbvision->vbi->minor != -1) {
1449                         video_unregister_device(usbvision->vbi);
1450                 } else {
1451                         video_device_release(usbvision->vbi);
1452                 }
1453                 usbvision->vbi = NULL;
1454         }
1455
1456         // Radio Device:
1457         if (usbvision->rdev) {
1458                 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1459                        usbvision->rdev->minor & 0x1f);
1460                 if (usbvision->rdev->minor != -1) {
1461                         video_unregister_device(usbvision->rdev);
1462                 } else {
1463                         video_device_release(usbvision->rdev);
1464                 }
1465                 usbvision->rdev = NULL;
1466         }
1467
1468         // Video Device:
1469         if (usbvision->vdev) {
1470                 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1471                        usbvision->vdev->minor & 0x1f);
1472                 if (usbvision->vdev->minor != -1) {
1473                         video_unregister_device(usbvision->vdev);
1474                 } else {
1475                         video_device_release(usbvision->vdev);
1476                 }
1477                 usbvision->vdev = NULL;
1478         }
1479 }
1480
1481 // register video4linux devices
1482 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1483 {
1484         // Video Device:
1485         usbvision->vdev = usbvision_vdev_init(usbvision,
1486                                               &usbvision_video_template,
1487                                               "USBVision Video");
1488         if (usbvision->vdev == NULL) {
1489                 goto err_exit;
1490         }
1491         if (video_register_device(usbvision->vdev,
1492                                   VFL_TYPE_GRABBER,
1493                                   video_nr)<0) {
1494                 goto err_exit;
1495         }
1496         printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1497                usbvision->nr,usbvision->vdev->minor & 0x1f);
1498
1499         // Radio Device:
1500         if (usbvision_device_data[usbvision->DevModel].Radio) {
1501                 // usbvision has radio
1502                 usbvision->rdev = usbvision_vdev_init(usbvision,
1503                                                       &usbvision_radio_template,
1504                                                       "USBVision Radio");
1505                 if (usbvision->rdev == NULL) {
1506                         goto err_exit;
1507                 }
1508                 if (video_register_device(usbvision->rdev,
1509                                           VFL_TYPE_RADIO,
1510                                           radio_nr)<0) {
1511                         goto err_exit;
1512                 }
1513                 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1514                        usbvision->nr, usbvision->rdev->minor & 0x1f);
1515         }
1516         // vbi Device:
1517         if (usbvision_device_data[usbvision->DevModel].vbi) {
1518                 usbvision->vbi = usbvision_vdev_init(usbvision,
1519                                                      &usbvision_vbi_template,
1520                                                      "USBVision VBI");
1521                 if (usbvision->vdev == NULL) {
1522                         goto err_exit;
1523                 }
1524                 if (video_register_device(usbvision->vbi,
1525                                           VFL_TYPE_VBI,
1526                                           vbi_nr)<0) {
1527                         goto err_exit;
1528                 }
1529                 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1530                        usbvision->nr,usbvision->vbi->minor & 0x1f);
1531         }
1532         // all done
1533         return 0;
1534
1535  err_exit:
1536         err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1537         usbvision_unregister_video(usbvision);
1538         return -1;
1539 }
1540
1541 /*
1542  * usbvision_alloc()
1543  *
1544  * This code allocates the struct usb_usbvision.
1545  * It is filled with default values.
1546  *
1547  * Returns NULL on error, a pointer to usb_usbvision else.
1548  *
1549  */
1550 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1551 {
1552         struct usb_usbvision *usbvision;
1553
1554         if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1555             NULL) {
1556                 goto err_exit;
1557         }
1558
1559         usbvision->dev = dev;
1560
1561         mutex_init(&usbvision->lock);   /* available */
1562
1563         // prepare control urb for control messages during interrupts
1564         usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1565         if (usbvision->ctrlUrb == NULL) {
1566                 goto err_exit;
1567         }
1568         init_waitqueue_head(&usbvision->ctrlUrb_wq);
1569
1570         usbvision_init_powerOffTimer(usbvision);
1571
1572         return usbvision;
1573
1574 err_exit:
1575         if (usbvision && usbvision->ctrlUrb) {
1576                 usb_free_urb(usbvision->ctrlUrb);
1577         }
1578         if (usbvision) {
1579                 kfree(usbvision);
1580         }
1581         return NULL;
1582 }
1583
1584 /*
1585  * usbvision_release()
1586  *
1587  * This code does final release of struct usb_usbvision. This happens
1588  * after the device is disconnected -and- all clients closed their files.
1589  *
1590  */
1591 static void usbvision_release(struct usb_usbvision *usbvision)
1592 {
1593         PDEBUG(DBG_PROBE, "");
1594
1595         mutex_lock(&usbvision->lock);
1596
1597         usbvision_reset_powerOffTimer(usbvision);
1598
1599         usbvision->initialized = 0;
1600
1601         mutex_unlock(&usbvision->lock);
1602
1603         usbvision_remove_sysfs(usbvision->vdev);
1604         usbvision_unregister_video(usbvision);
1605
1606         if (usbvision->ctrlUrb) {
1607                 usb_free_urb(usbvision->ctrlUrb);
1608         }
1609
1610         kfree(usbvision);
1611
1612         PDEBUG(DBG_PROBE, "success");
1613 }
1614
1615
1616 /*********************** usb interface **********************************/
1617
1618 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1619 {
1620         int model;
1621
1622         if (usbvision == NULL)
1623                 return;
1624
1625         model = usbvision->DevModel;
1626         usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1627
1628         if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1629                 usbvision->Vin_Reg2_Preset =
1630                         usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1631         } else {
1632                 usbvision->Vin_Reg2_Preset = 0;
1633         }
1634
1635         usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1636
1637         usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1638         usbvision->ctl_input = 0;
1639
1640         /* This should be here to make i2c clients to be able to register */
1641         /* first switch off audio */
1642         usbvision_audio_off(usbvision);
1643         if (!PowerOnAtOpen) {
1644                 /* and then power up the noisy tuner */
1645                 usbvision_power_on(usbvision);
1646                 usbvision_i2c_register(usbvision);
1647         }
1648 }
1649
1650 /*
1651  * usbvision_probe()
1652  *
1653  * This procedure queries device descriptor and accepts the interface
1654  * if it looks like USBVISION video device
1655  *
1656  */
1657 static int __devinit usbvision_probe(struct usb_interface *intf,
1658                                      const struct usb_device_id *devid)
1659 {
1660         struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1661         struct usb_interface *uif;
1662         __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1663         const struct usb_host_interface *interface;
1664         struct usb_usbvision *usbvision = NULL;
1665         const struct usb_endpoint_descriptor *endpoint;
1666         int model,i;
1667
1668         PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1669                                 dev->descriptor.idVendor,
1670                                 dev->descriptor.idProduct, ifnum);
1671
1672         model = devid->driver_info;
1673         if ( (model<0) || (model>=usbvision_device_data_size) ) {
1674                 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1675                 return -ENODEV;
1676         }
1677         printk(KERN_INFO "%s: %s found\n", __func__,
1678                                 usbvision_device_data[model].ModelString);
1679
1680         if (usbvision_device_data[model].Interface >= 0) {
1681                 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1682         } else {
1683                 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1684         }
1685         endpoint = &interface->endpoint[1].desc;
1686         if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1687             USB_ENDPOINT_XFER_ISOC) {
1688                 err("%s: interface %d. has non-ISO endpoint!",
1689                     __func__, ifnum);
1690                 err("%s: Endpoint attributes %d",
1691                     __func__, endpoint->bmAttributes);
1692                 return -ENODEV;
1693         }
1694         if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1695             USB_DIR_OUT) {
1696                 err("%s: interface %d. has ISO OUT endpoint!",
1697                     __func__, ifnum);
1698                 return -ENODEV;
1699         }
1700
1701         if ((usbvision = usbvision_alloc(dev)) == NULL) {
1702                 err("%s: couldn't allocate USBVision struct", __func__);
1703                 return -ENOMEM;
1704         }
1705
1706         if (dev->descriptor.bNumConfigurations > 1) {
1707                 usbvision->bridgeType = BRIDGE_NT1004;
1708         } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1709                 usbvision->bridgeType = BRIDGE_NT1005;
1710         } else {
1711                 usbvision->bridgeType = BRIDGE_NT1003;
1712         }
1713         PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1714
1715         mutex_lock(&usbvision->lock);
1716
1717         /* compute alternate max packet sizes */
1718         uif = dev->actconfig->interface[0];
1719
1720         usbvision->num_alt=uif->num_altsetting;
1721         PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1722         usbvision->alt_max_pkt_size = kmalloc(32*
1723                                               usbvision->num_alt,GFP_KERNEL);
1724         if (usbvision->alt_max_pkt_size == NULL) {
1725                 err("usbvision: out of memory!\n");
1726                 mutex_unlock(&usbvision->lock);
1727                 return -ENOMEM;
1728         }
1729
1730         for (i = 0; i < usbvision->num_alt ; i++) {
1731                 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1732                                       wMaxPacketSize);
1733                 usbvision->alt_max_pkt_size[i] =
1734                         (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1735                 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1736                        usbvision->alt_max_pkt_size[i]);
1737         }
1738
1739
1740         usbvision->nr = usbvision_nr++;
1741
1742         usbvision->have_tuner = usbvision_device_data[model].Tuner;
1743         if (usbvision->have_tuner) {
1744                 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1745         }
1746
1747         usbvision->tuner_addr = ADDR_UNSET;
1748
1749         usbvision->DevModel = model;
1750         usbvision->remove_pending = 0;
1751         usbvision->iface = ifnum;
1752         usbvision->ifaceAlt = 0;
1753         usbvision->video_endp = endpoint->bEndpointAddress;
1754         usbvision->isocPacketSize = 0;
1755         usbvision->usb_bandwidth = 0;
1756         usbvision->user = 0;
1757         usbvision->streaming = Stream_Off;
1758         usbvision_register_video(usbvision);
1759         usbvision_configure_video(usbvision);
1760         mutex_unlock(&usbvision->lock);
1761
1762
1763         usb_set_intfdata (intf, usbvision);
1764         usbvision_create_sysfs(usbvision->vdev);
1765
1766         PDEBUG(DBG_PROBE, "success");
1767         return 0;
1768 }
1769
1770
1771 /*
1772  * usbvision_disconnect()
1773  *
1774  * This procedure stops all driver activity, deallocates interface-private
1775  * structure (pointed by 'ptr') and after that driver should be removable
1776  * with no ill consequences.
1777  *
1778  */
1779 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1780 {
1781         struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1782
1783         PDEBUG(DBG_PROBE, "");
1784
1785         if (usbvision == NULL) {
1786                 err("%s: usb_get_intfdata() failed", __func__);
1787                 return;
1788         }
1789         usb_set_intfdata (intf, NULL);
1790
1791         mutex_lock(&usbvision->lock);
1792
1793         // At this time we ask to cancel outstanding URBs
1794         usbvision_stop_isoc(usbvision);
1795
1796         if (usbvision->power) {
1797                 usbvision_i2c_unregister(usbvision);
1798                 usbvision_power_off(usbvision);
1799         }
1800         usbvision->remove_pending = 1;  // Now all ISO data will be ignored
1801
1802         usb_put_dev(usbvision->dev);
1803         usbvision->dev = NULL;  // USB device is no more
1804
1805         mutex_unlock(&usbvision->lock);
1806
1807         if (usbvision->user) {
1808                 printk(KERN_INFO "%s: In use, disconnect pending\n",
1809                        __func__);
1810                 wake_up_interruptible(&usbvision->wait_frame);
1811                 wake_up_interruptible(&usbvision->wait_stream);
1812         } else {
1813                 usbvision_release(usbvision);
1814         }
1815
1816         PDEBUG(DBG_PROBE, "success");
1817 }
1818
1819 static struct usb_driver usbvision_driver = {
1820         .name           = "usbvision",
1821         .id_table       = usbvision_table,
1822         .probe          = usbvision_probe,
1823         .disconnect     = usbvision_disconnect
1824 };
1825
1826 /*
1827  * usbvision_init()
1828  *
1829  * This code is run to initialize the driver.
1830  *
1831  */
1832 static int __init usbvision_init(void)
1833 {
1834         int errCode;
1835
1836         PDEBUG(DBG_PROBE, "");
1837
1838         PDEBUG(DBG_IO,  "IO      debugging is enabled [video]");
1839         PDEBUG(DBG_PROBE, "PROBE   debugging is enabled [video]");
1840         PDEBUG(DBG_MMAP, "MMAP    debugging is enabled [video]");
1841
1842         /* disable planar mode support unless compression enabled */
1843         if (isocMode != ISOC_MODE_COMPRESS ) {
1844                 // FIXME : not the right way to set supported flag
1845                 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1846                 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1847         }
1848
1849         errCode = usb_register(&usbvision_driver);
1850
1851         if (errCode == 0) {
1852                 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1853                 PDEBUG(DBG_PROBE, "success");
1854         }
1855         return errCode;
1856 }
1857
1858 static void __exit usbvision_exit(void)
1859 {
1860  PDEBUG(DBG_PROBE, "");
1861
1862  usb_deregister(&usbvision_driver);
1863  PDEBUG(DBG_PROBE, "success");
1864 }
1865
1866 module_init(usbvision_init);
1867 module_exit(usbvision_exit);
1868
1869 /*
1870  * Overrides for Emacs so that we follow Linus's tabbing style.
1871  * ---------------------------------------------------------------------------
1872  * Local variables:
1873  * c-basic-offset: 8
1874  * End:
1875  */