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