usbvision-video.c revision 22c4a4e98ece0eaff13b3d0ac73c5283013eb6b1
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/videodev.h> 57#include <linux/vmalloc.h> 58#include <linux/module.h> 59#include <linux/init.h> 60#include <linux/spinlock.h> 61#include <asm/io.h> 62#include <linux/videodev2.h> 63#include <linux/video_decoder.h> 64#include <linux/i2c.h> 65 66#include <media/saa7115.h> 67#include <media/v4l2-common.h> 68#include <media/tuner.h> 69#include <media/audiochip.h> 70 71#include <linux/workqueue.h> 72 73#ifdef CONFIG_KMOD 74#include <linux/kmod.h> 75#endif 76 77#include "usbvision.h" 78#include "usbvision-cards.h" 79 80#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\ 81 Dwaine Garden <DwaineGarden@rogers.com>" 82#define DRIVER_NAME "usbvision" 83#define DRIVER_ALIAS "USBVision" 84#define DRIVER_DESC "USBVision USB Video Device Driver for Linux" 85#define DRIVER_LICENSE "GPL" 86#define USBVISION_DRIVER_VERSION_MAJOR 0 87#define USBVISION_DRIVER_VERSION_MINOR 9 88#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9 89#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\ 90USBVISION_DRIVER_VERSION_MINOR,\ 91USBVISION_DRIVER_VERSION_PATCHLEVEL) 92#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\ 93 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\ 94 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) 95 96#define ENABLE_HEXDUMP 0 /* Enable if you need it */ 97 98 99#ifdef USBVISION_DEBUG 100 #define PDEBUG(level, fmt, args...) \ 101 if (video_debug & (level)) \ 102 info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ ,\ 103 ## args) 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 */ 118static int usbvision_nr = 0; 119 120static 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 */ 132static void usbvision_release(struct usb_usbvision *usbvision); 133 134/* Default initalization of device driver parameters */ 135/* Set the default format for ISOC endpoint */ 136static int isocMode = ISOC_MODE_COMPRESS; 137/* Set the default Debug Mode of the device driver */ 138static int video_debug = 0; 139/* Set the default device to power on at startup */ 140static int PowerOnAtOpen = 1; 141/* Sequential Number of Video Device */ 142static int video_nr = -1; 143/* Sequential Number of Radio Device */ 144static int radio_nr = -1; 145/* Sequential Number of VBI Device */ 146static int vbi_nr = -1; 147 148/* Grab parameters for the device driver */ 149 150/* Showing parameters under SYSFS */ 151module_param(isocMode, int, 0444); 152module_param(video_debug, int, 0444); 153module_param(PowerOnAtOpen, int, 0444); 154module_param(video_nr, int, 0444); 155module_param(radio_nr, int, 0444); 156module_param(vbi_nr, int, 0444); 157 158MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); 159MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); 160MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); 161MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); 162MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); 163MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); 164 165 166// Misc stuff 167MODULE_AUTHOR(DRIVER_AUTHOR); 168MODULE_DESCRIPTION(DRIVER_DESC); 169MODULE_LICENSE(DRIVER_LICENSE); 170MODULE_VERSION(USBVISION_VERSION_STRING); 171MODULE_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/*****************************************************************************/ 181 182 183#define YES_NO(x) ((x) ? "Yes" : "No") 184 185static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) 186{ 187 struct video_device *vdev = 188 container_of(cd, struct video_device, class_dev); 189 return video_get_drvdata(vdev); 190} 191 192static ssize_t show_version(struct device *cd, 193 struct device_attribute *attr, char *buf) 194{ 195 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); 196} 197static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); 198 199static ssize_t show_model(struct device *cd, 200 struct device_attribute *attr, char *buf) 201{ 202 struct video_device *vdev = 203 container_of(cd, struct video_device, class_dev); 204 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 205 return sprintf(buf, "%s\n", 206 usbvision_device_data[usbvision->DevModel].ModelString); 207} 208static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); 209 210static ssize_t show_hue(struct device *cd, 211 struct device_attribute *attr, char *buf) 212{ 213 struct video_device *vdev = 214 container_of(cd, struct video_device, class_dev); 215 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 216 struct v4l2_control ctrl; 217 ctrl.id = V4L2_CID_HUE; 218 ctrl.value = 0; 219 if(usbvision->user) 220 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 221 return sprintf(buf, "%d\n", ctrl.value); 222} 223static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); 224 225static ssize_t show_contrast(struct device *cd, 226 struct device_attribute *attr, char *buf) 227{ 228 struct video_device *vdev = 229 container_of(cd, struct video_device, class_dev); 230 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 231 struct v4l2_control ctrl; 232 ctrl.id = V4L2_CID_CONTRAST; 233 ctrl.value = 0; 234 if(usbvision->user) 235 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 236 return sprintf(buf, "%d\n", ctrl.value); 237} 238static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); 239 240static ssize_t show_brightness(struct device *cd, 241 struct device_attribute *attr, char *buf) 242{ 243 struct video_device *vdev = 244 container_of(cd, struct video_device, class_dev); 245 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 246 struct v4l2_control ctrl; 247 ctrl.id = V4L2_CID_BRIGHTNESS; 248 ctrl.value = 0; 249 if(usbvision->user) 250 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 251 return sprintf(buf, "%d\n", ctrl.value); 252} 253static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); 254 255static ssize_t show_saturation(struct device *cd, 256 struct device_attribute *attr, char *buf) 257{ 258 struct video_device *vdev = 259 container_of(cd, struct video_device, class_dev); 260 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 261 struct v4l2_control ctrl; 262 ctrl.id = V4L2_CID_SATURATION; 263 ctrl.value = 0; 264 if(usbvision->user) 265 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 266 return sprintf(buf, "%d\n", ctrl.value); 267} 268static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); 269 270static ssize_t show_streaming(struct device *cd, 271 struct device_attribute *attr, char *buf) 272{ 273 struct video_device *vdev = 274 container_of(cd, struct video_device, class_dev); 275 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 276 return sprintf(buf, "%s\n", 277 YES_NO(usbvision->streaming==Stream_On?1:0)); 278} 279static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); 280 281static ssize_t show_compression(struct device *cd, 282 struct device_attribute *attr, char *buf) 283{ 284 struct video_device *vdev = 285 container_of(cd, struct video_device, class_dev); 286 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 287 return sprintf(buf, "%s\n", 288 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); 289} 290static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); 291 292static ssize_t show_device_bridge(struct device *cd, 293 struct device_attribute *attr, char *buf) 294{ 295 struct video_device *vdev = 296 container_of(cd, struct video_device, class_dev); 297 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 298 return sprintf(buf, "%d\n", usbvision->bridgeType); 299} 300static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); 301 302static void usbvision_create_sysfs(struct video_device *vdev) 303{ 304 int res; 305 if (!vdev) 306 return; 307 do { 308 res = device_create_file(&vdev->class_dev, 309 &dev_attr_version); 310 if (res<0) 311 break; 312 res = device_create_file(&vdev->class_dev, 313 &dev_attr_model); 314 if (res<0) 315 break; 316 res = device_create_file(&vdev->class_dev, 317 &dev_attr_hue); 318 if (res<0) 319 break; 320 res = device_create_file(&vdev->class_dev, 321 &dev_attr_contrast); 322 if (res<0) 323 break; 324 res = device_create_file(&vdev->class_dev, 325 &dev_attr_brightness); 326 if (res<0) 327 break; 328 res = device_create_file(&vdev->class_dev, 329 &dev_attr_saturation); 330 if (res<0) 331 break; 332 res = device_create_file(&vdev->class_dev, 333 &dev_attr_streaming); 334 if (res<0) 335 break; 336 res = device_create_file(&vdev->class_dev, 337 &dev_attr_compression); 338 if (res<0) 339 break; 340 res = device_create_file(&vdev->class_dev, 341 &dev_attr_bridge); 342 if (res>=0) 343 return; 344 } while (0); 345 346 err("%s error: %d\n", __FUNCTION__, res); 347} 348 349static void usbvision_remove_sysfs(struct video_device *vdev) 350{ 351 if (vdev) { 352 device_remove_file(&vdev->class_dev, 353 &dev_attr_version); 354 device_remove_file(&vdev->class_dev, 355 &dev_attr_model); 356 device_remove_file(&vdev->class_dev, 357 &dev_attr_hue); 358 device_remove_file(&vdev->class_dev, 359 &dev_attr_contrast); 360 device_remove_file(&vdev->class_dev, 361 &dev_attr_brightness); 362 device_remove_file(&vdev->class_dev, 363 &dev_attr_saturation); 364 device_remove_file(&vdev->class_dev, 365 &dev_attr_streaming); 366 device_remove_file(&vdev->class_dev, 367 &dev_attr_compression); 368 device_remove_file(&vdev->class_dev, 369 &dev_attr_bridge); 370 } 371} 372 373 374/* 375 * usbvision_open() 376 * 377 * This is part of Video 4 Linux API. The driver can be opened by one 378 * client only (checks internal counter 'usbvision->user'). The procedure 379 * then allocates buffers needed for video processing. 380 * 381 */ 382static int usbvision_v4l2_open(struct inode *inode, struct file *file) 383{ 384 struct video_device *dev = video_devdata(file); 385 struct usb_usbvision *usbvision = 386 (struct usb_usbvision *) video_get_drvdata(dev); 387 int errCode = 0; 388 389 PDEBUG(DBG_IO, "open"); 390 391 392 usbvision_reset_powerOffTimer(usbvision); 393 394 if (usbvision->user) 395 errCode = -EBUSY; 396 else { 397 /* Allocate memory for the scratch ring buffer */ 398 errCode = usbvision_scratch_alloc(usbvision); 399 if (isocMode==ISOC_MODE_COMPRESS) { 400 /* Allocate intermediate decompression buffers 401 only if needed */ 402 errCode = usbvision_decompress_alloc(usbvision); 403 } 404 if (errCode) { 405 /* Deallocate all buffers if trouble */ 406 usbvision_scratch_free(usbvision); 407 usbvision_decompress_free(usbvision); 408 } 409 } 410 411 /* If so far no errors then we shall start the camera */ 412 if (!errCode) { 413 down(&usbvision->lock); 414 if (usbvision->power == 0) { 415 usbvision_power_on(usbvision); 416 usbvision_i2c_register(usbvision); 417 } 418 419 /* Send init sequence only once, it's large! */ 420 if (!usbvision->initialized) { 421 int setup_ok = 0; 422 setup_ok = usbvision_setup(usbvision,isocMode); 423 if (setup_ok) 424 usbvision->initialized = 1; 425 else 426 errCode = -EBUSY; 427 } 428 429 if (!errCode) { 430 usbvision_begin_streaming(usbvision); 431 errCode = usbvision_init_isoc(usbvision); 432 /* device must be initialized before isoc transfer */ 433 usbvision_muxsel(usbvision,0); 434 usbvision->user++; 435 } else { 436 if (PowerOnAtOpen) { 437 usbvision_i2c_unregister(usbvision); 438 usbvision_power_off(usbvision); 439 usbvision->initialized = 0; 440 } 441 } 442 up(&usbvision->lock); 443 } 444 445 if (errCode) { 446 } 447 448 /* prepare queues */ 449 usbvision_empty_framequeues(usbvision); 450 451 PDEBUG(DBG_IO, "success"); 452 return errCode; 453} 454 455/* 456 * usbvision_v4l2_close() 457 * 458 * This is part of Video 4 Linux API. The procedure 459 * stops streaming and deallocates all buffers that were earlier 460 * allocated in usbvision_v4l2_open(). 461 * 462 */ 463static int usbvision_v4l2_close(struct inode *inode, struct file *file) 464{ 465 struct video_device *dev = video_devdata(file); 466 struct usb_usbvision *usbvision = 467 (struct usb_usbvision *) video_get_drvdata(dev); 468 469 PDEBUG(DBG_IO, "close"); 470 down(&usbvision->lock); 471 472 usbvision_audio_off(usbvision); 473 usbvision_restart_isoc(usbvision); 474 usbvision_stop_isoc(usbvision); 475 476 usbvision_decompress_free(usbvision); 477 usbvision_frames_free(usbvision); 478 usbvision_empty_framequeues(usbvision); 479 usbvision_scratch_free(usbvision); 480 481 usbvision->user--; 482 483 if (PowerOnAtOpen) { 484 /* power off in a little while 485 to avoid off/on every close/open short sequences */ 486 usbvision_set_powerOffTimer(usbvision); 487 usbvision->initialized = 0; 488 } 489 490 up(&usbvision->lock); 491 492 if (usbvision->remove_pending) { 493 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 494 usbvision_release(usbvision); 495 } 496 497 PDEBUG(DBG_IO, "success"); 498 499 500 return 0; 501} 502 503 504/* 505 * usbvision_ioctl() 506 * 507 * This is part of Video 4 Linux API. The procedure handles ioctl() calls. 508 * 509 */ 510#ifdef CONFIG_VIDEO_ADV_DEBUG 511static int vidioc_g_register (struct file *file, void *priv, 512 struct v4l2_register *reg) 513{ 514 struct video_device *dev = video_devdata(file); 515 struct usb_usbvision *usbvision = 516 (struct usb_usbvision *) video_get_drvdata(dev); 517 int errCode; 518 519 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 520 return -EINVAL; 521 /* NT100x has a 8-bit register space */ 522 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 523 if (errCode < 0) { 524 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d", 525 __FUNCTION__, errCode); 526 return errCode; 527 } 528 reg->val = errCode; 529 return 0; 530} 531 532static int vidioc_s_register (struct file *file, void *priv, 533 struct v4l2_register *reg) 534{ 535 struct video_device *dev = video_devdata(file); 536 struct usb_usbvision *usbvision = 537 (struct usb_usbvision *) video_get_drvdata(dev); 538 int errCode; 539 540 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 541 return -EINVAL; 542 /* NT100x has a 8-bit register space */ 543 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 544 if (errCode < 0) { 545 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d", 546 __FUNCTION__, errCode); 547 return errCode; 548 } 549 return 0; 550} 551#endif 552 553static int vidioc_querycap (struct file *file, void *priv, 554 struct v4l2_capability *vc) 555{ 556 struct video_device *dev = video_devdata(file); 557 struct usb_usbvision *usbvision = 558 (struct usb_usbvision *) video_get_drvdata(dev); 559 560 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 561 strlcpy(vc->card, 562 usbvision_device_data[usbvision->DevModel].ModelString, 563 sizeof(vc->card)); 564 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 565 sizeof(vc->bus_info)); 566 vc->version = USBVISION_DRIVER_VERSION; 567 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 568 V4L2_CAP_AUDIO | 569 V4L2_CAP_READWRITE | 570 V4L2_CAP_STREAMING | 571 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 572 return 0; 573} 574 575static int vidioc_enum_input (struct file *file, void *priv, 576 struct v4l2_input *vi) 577{ 578 struct video_device *dev = video_devdata(file); 579 struct usb_usbvision *usbvision = 580 (struct usb_usbvision *) video_get_drvdata(dev); 581 int chan; 582 583 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 584 return -EINVAL; 585 if (usbvision->have_tuner) { 586 chan = vi->index; 587 } else { 588 chan = vi->index + 1; /*skip Television string*/ 589 } 590 /* Determine the requested input characteristics 591 specific for each usbvision card model */ 592 switch(chan) { 593 case 0: 594 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 595 strcpy(vi->name, "White Video Input"); 596 } else { 597 strcpy(vi->name, "Television"); 598 vi->type = V4L2_INPUT_TYPE_TUNER; 599 vi->audioset = 1; 600 vi->tuner = chan; 601 vi->std = USBVISION_NORMS; 602 } 603 break; 604 case 1: 605 vi->type = V4L2_INPUT_TYPE_CAMERA; 606 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 607 strcpy(vi->name, "Green Video Input"); 608 } else { 609 strcpy(vi->name, "Composite Video Input"); 610 } 611 vi->std = V4L2_STD_PAL; 612 break; 613 case 2: 614 vi->type = V4L2_INPUT_TYPE_CAMERA; 615 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 616 strcpy(vi->name, "Yellow Video Input"); 617 } else { 618 strcpy(vi->name, "S-Video Input"); 619 } 620 vi->std = V4L2_STD_PAL; 621 break; 622 case 3: 623 vi->type = V4L2_INPUT_TYPE_CAMERA; 624 strcpy(vi->name, "Red Video Input"); 625 vi->std = V4L2_STD_PAL; 626 break; 627 } 628 return 0; 629} 630 631static int vidioc_g_input (struct file *file, void *priv, unsigned int *input) 632{ 633 struct video_device *dev = video_devdata(file); 634 struct usb_usbvision *usbvision = 635 (struct usb_usbvision *) video_get_drvdata(dev); 636 637 *input = usbvision->ctl_input; 638 return 0; 639} 640 641static int vidioc_s_input (struct file *file, void *priv, unsigned int input) 642{ 643 struct video_device *dev = video_devdata(file); 644 struct usb_usbvision *usbvision = 645 (struct usb_usbvision *) video_get_drvdata(dev); 646 647 if ((input >= usbvision->video_inputs) || (input < 0) ) 648 return -EINVAL; 649 650 down(&usbvision->lock); 651 usbvision_muxsel(usbvision, input); 652 usbvision_set_input(usbvision); 653 usbvision_set_output(usbvision, 654 usbvision->curwidth, 655 usbvision->curheight); 656 up(&usbvision->lock); 657 return 0; 658} 659 660static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id) 661{ 662 struct video_device *dev = video_devdata(file); 663 struct usb_usbvision *usbvision = 664 (struct usb_usbvision *) video_get_drvdata(dev); 665 usbvision->tvnormId=*id; 666 667 down(&usbvision->lock); 668 call_i2c_clients(usbvision, VIDIOC_S_STD, 669 &usbvision->tvnormId); 670 up(&usbvision->lock); 671 /* propagate the change to the decoder */ 672 usbvision_muxsel(usbvision, usbvision->ctl_input); 673 674 return 0; 675} 676 677static int vidioc_g_tuner (struct file *file, void *priv, 678 struct v4l2_tuner *vt) 679{ 680 struct video_device *dev = video_devdata(file); 681 struct usb_usbvision *usbvision = 682 (struct usb_usbvision *) video_get_drvdata(dev); 683 684 if (!usbvision->have_tuner || vt->index) // Only tuner 0 685 return -EINVAL; 686 if(usbvision->radio) { 687 strcpy(vt->name, "Radio"); 688 vt->type = V4L2_TUNER_RADIO; 689 } else { 690 strcpy(vt->name, "Television"); 691 } 692 /* Let clients fill in the remainder of this struct */ 693 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 694 695 return 0; 696} 697 698static int vidioc_s_tuner (struct file *file, void *priv, 699 struct v4l2_tuner *vt) 700{ 701 struct video_device *dev = video_devdata(file); 702 struct usb_usbvision *usbvision = 703 (struct usb_usbvision *) video_get_drvdata(dev); 704 705 // Only no or one tuner for now 706 if (!usbvision->have_tuner || vt->index) 707 return -EINVAL; 708 /* let clients handle this */ 709 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 710 711 return 0; 712} 713 714static int vidioc_g_frequency (struct file *file, void *priv, 715 struct v4l2_frequency *freq) 716{ 717 struct video_device *dev = video_devdata(file); 718 struct usb_usbvision *usbvision = 719 (struct usb_usbvision *) video_get_drvdata(dev); 720 721 freq->tuner = 0; // Only one tuner 722 if(usbvision->radio) { 723 freq->type = V4L2_TUNER_RADIO; 724 } else { 725 freq->type = V4L2_TUNER_ANALOG_TV; 726 } 727 freq->frequency = usbvision->freq; 728 729 return 0; 730} 731 732static int vidioc_s_frequency (struct file *file, void *priv, 733 struct v4l2_frequency *freq) 734{ 735 struct video_device *dev = video_devdata(file); 736 struct usb_usbvision *usbvision = 737 (struct usb_usbvision *) video_get_drvdata(dev); 738 739 // Only no or one tuner for now 740 if (!usbvision->have_tuner || freq->tuner) 741 return -EINVAL; 742 743 usbvision->freq = freq->frequency; 744 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq); 745 746 return 0; 747} 748 749static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a) 750{ 751 struct video_device *dev = video_devdata(file); 752 struct usb_usbvision *usbvision = 753 (struct usb_usbvision *) video_get_drvdata(dev); 754 755 memset(a,0,sizeof(*a)); 756 if(usbvision->radio) { 757 strcpy(a->name,"Radio"); 758 } else { 759 strcpy(a->name, "TV"); 760 } 761 762 return 0; 763} 764 765static int vidioc_s_audio (struct file *file, void *fh, 766 struct v4l2_audio *a) 767{ 768 if(a->index) { 769 return -EINVAL; 770 } 771 772 return 0; 773} 774 775static int vidioc_queryctrl (struct file *file, void *priv, 776 struct v4l2_queryctrl *ctrl) 777{ 778 struct video_device *dev = video_devdata(file); 779 struct usb_usbvision *usbvision = 780 (struct usb_usbvision *) video_get_drvdata(dev); 781 int id=ctrl->id; 782 783 memset(ctrl,0,sizeof(*ctrl)); 784 ctrl->id=id; 785 786 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl); 787 788 if (!ctrl->type) 789 return -EINVAL; 790 791 return 0; 792} 793 794static int vidioc_g_ctrl (struct file *file, void *priv, 795 struct v4l2_control *ctrl) 796{ 797 struct video_device *dev = video_devdata(file); 798 struct usb_usbvision *usbvision = 799 (struct usb_usbvision *) video_get_drvdata(dev); 800 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 801 802 return 0; 803} 804 805static int vidioc_s_ctrl (struct file *file, void *priv, 806 struct v4l2_control *ctrl) 807{ 808 struct video_device *dev = video_devdata(file); 809 struct usb_usbvision *usbvision = 810 (struct usb_usbvision *) video_get_drvdata(dev); 811 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 812 813 return 0; 814} 815 816static int vidioc_reqbufs (struct file *file, 817 void *priv, struct v4l2_requestbuffers *vr) 818{ 819 struct video_device *dev = video_devdata(file); 820 struct usb_usbvision *usbvision = 821 (struct usb_usbvision *) video_get_drvdata(dev); 822 int ret; 823 824 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 825 826 /* Check input validity: 827 the user must do a VIDEO CAPTURE and MMAP method. */ 828 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 829 (vr->memory != V4L2_MEMORY_MMAP)) 830 return -EINVAL; 831 832 if(usbvision->streaming == Stream_On) { 833 if ((ret = usbvision_stream_interrupt(usbvision))) 834 return ret; 835 } 836 837 usbvision_frames_free(usbvision); 838 usbvision_empty_framequeues(usbvision); 839 vr->count = usbvision_frames_alloc(usbvision,vr->count); 840 841 usbvision->curFrame = NULL; 842 843 return 0; 844} 845 846static int vidioc_querybuf (struct file *file, 847 void *priv, struct v4l2_buffer *vb) 848{ 849 struct video_device *dev = video_devdata(file); 850 struct usb_usbvision *usbvision = 851 (struct usb_usbvision *) video_get_drvdata(dev); 852 struct usbvision_frame *frame; 853 854 /* FIXME : must control 855 that buffers are mapped (VIDIOC_REQBUFS has been called) */ 856 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 857 return -EINVAL; 858 } 859 if(vb->index>=usbvision->num_frames) { 860 return -EINVAL; 861 } 862 /* Updating the corresponding frame state */ 863 vb->flags = 0; 864 frame = &usbvision->frame[vb->index]; 865 if(frame->grabstate >= FrameState_Ready) 866 vb->flags |= V4L2_BUF_FLAG_QUEUED; 867 if(frame->grabstate >= FrameState_Done) 868 vb->flags |= V4L2_BUF_FLAG_DONE; 869 if(frame->grabstate == FrameState_Unused) 870 vb->flags |= V4L2_BUF_FLAG_MAPPED; 871 vb->memory = V4L2_MEMORY_MMAP; 872 873 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 874 875 vb->memory = V4L2_MEMORY_MMAP; 876 vb->field = V4L2_FIELD_NONE; 877 vb->length = usbvision->curwidth* 878 usbvision->curheight* 879 usbvision->palette.bytes_per_pixel; 880 vb->timestamp = usbvision->frame[vb->index].timestamp; 881 vb->sequence = usbvision->frame[vb->index].sequence; 882 return 0; 883} 884 885static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 886{ 887 struct video_device *dev = video_devdata(file); 888 struct usb_usbvision *usbvision = 889 (struct usb_usbvision *) video_get_drvdata(dev); 890 struct usbvision_frame *frame; 891 unsigned long lock_flags; 892 893 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ 894 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 895 return -EINVAL; 896 } 897 if(vb->index>=usbvision->num_frames) { 898 return -EINVAL; 899 } 900 901 frame = &usbvision->frame[vb->index]; 902 903 if (frame->grabstate != FrameState_Unused) { 904 return -EAGAIN; 905 } 906 907 /* Mark it as ready and enqueue frame */ 908 frame->grabstate = FrameState_Ready; 909 frame->scanstate = ScanState_Scanning; 910 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 911 912 vb->flags &= ~V4L2_BUF_FLAG_DONE; 913 914 /* set v4l2_format index */ 915 frame->v4l2_format = usbvision->palette; 916 917 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 918 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 919 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 920 921 return 0; 922} 923 924static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 925{ 926 struct video_device *dev = video_devdata(file); 927 struct usb_usbvision *usbvision = 928 (struct usb_usbvision *) video_get_drvdata(dev); 929 int ret; 930 struct usbvision_frame *f; 931 unsigned long lock_flags; 932 933 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 934 return -EINVAL; 935 936 if (list_empty(&(usbvision->outqueue))) { 937 if (usbvision->streaming == Stream_Idle) 938 return -EINVAL; 939 ret = wait_event_interruptible 940 (usbvision->wait_frame, 941 !list_empty(&(usbvision->outqueue))); 942 if (ret) 943 return ret; 944 } 945 946 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 947 f = list_entry(usbvision->outqueue.next, 948 struct usbvision_frame, frame); 949 list_del(usbvision->outqueue.next); 950 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 951 952 f->grabstate = FrameState_Unused; 953 954 vb->memory = V4L2_MEMORY_MMAP; 955 vb->flags = V4L2_BUF_FLAG_MAPPED | 956 V4L2_BUF_FLAG_QUEUED | 957 V4L2_BUF_FLAG_DONE; 958 vb->index = f->index; 959 vb->sequence = f->sequence; 960 vb->timestamp = f->timestamp; 961 vb->field = V4L2_FIELD_NONE; 962 vb->bytesused = f->scanlength; 963 964 return 0; 965} 966 967static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) 968{ 969 struct video_device *dev = video_devdata(file); 970 struct usb_usbvision *usbvision = 971 (struct usb_usbvision *) video_get_drvdata(dev); 972 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 973 974 usbvision->streaming = Stream_On; 975 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 976 977 return 0; 978} 979 980static int vidioc_streamoff(struct file *file, 981 void *priv, enum v4l2_buf_type type) 982{ 983 struct video_device *dev = video_devdata(file); 984 struct usb_usbvision *usbvision = 985 (struct usb_usbvision *) video_get_drvdata(dev); 986 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 987 988 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 989 return -EINVAL; 990 991 if(usbvision->streaming == Stream_On) { 992 usbvision_stream_interrupt(usbvision); 993 /* Stop all video streamings */ 994 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 995 } 996 usbvision_empty_framequeues(usbvision); 997 998 return 0; 999} 1000 1001static int vidioc_enum_fmt_cap (struct file *file, void *priv, 1002 struct v4l2_fmtdesc *vfd) 1003{ 1004 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 1005 return -EINVAL; 1006 } 1007 vfd->flags = 0; 1008 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1009 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 1010 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 1011 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 1012 return 0; 1013} 1014 1015static int vidioc_g_fmt_cap (struct file *file, void *priv, 1016 struct v4l2_format *vf) 1017{ 1018 struct video_device *dev = video_devdata(file); 1019 struct usb_usbvision *usbvision = 1020 (struct usb_usbvision *) video_get_drvdata(dev); 1021 vf->fmt.pix.width = usbvision->curwidth; 1022 vf->fmt.pix.height = usbvision->curheight; 1023 vf->fmt.pix.pixelformat = usbvision->palette.format; 1024 vf->fmt.pix.bytesperline = 1025 usbvision->curwidth*usbvision->palette.bytes_per_pixel; 1026 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 1027 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1028 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 1029 1030 return 0; 1031} 1032 1033static int vidioc_try_fmt_cap (struct file *file, void *priv, 1034 struct v4l2_format *vf) 1035{ 1036 struct video_device *dev = video_devdata(file); 1037 struct usb_usbvision *usbvision = 1038 (struct usb_usbvision *) video_get_drvdata(dev); 1039 int formatIdx; 1040 1041 /* Find requested format in available ones */ 1042 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 1043 if(vf->fmt.pix.pixelformat == 1044 usbvision_v4l2_format[formatIdx].format) { 1045 usbvision->palette = usbvision_v4l2_format[formatIdx]; 1046 break; 1047 } 1048 } 1049 /* robustness */ 1050 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 1051 return -EINVAL; 1052 } 1053 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 1054 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 1055 1056 vf->fmt.pix.bytesperline = vf->fmt.pix.width* 1057 usbvision->palette.bytes_per_pixel; 1058 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 1059 1060 return 0; 1061} 1062 1063static int vidioc_s_fmt_cap(struct file *file, void *priv, 1064 struct v4l2_format *vf) 1065{ 1066 struct video_device *dev = video_devdata(file); 1067 struct usb_usbvision *usbvision = 1068 (struct usb_usbvision *) video_get_drvdata(dev); 1069 int ret; 1070 1071 if( 0 != (ret=vidioc_try_fmt_cap (file, priv, vf)) ) { 1072 return ret; 1073 } 1074 1075 /* stop io in case it is already in progress */ 1076 if(usbvision->streaming == Stream_On) { 1077 if ((ret = usbvision_stream_interrupt(usbvision))) 1078 return ret; 1079 } 1080 usbvision_frames_free(usbvision); 1081 usbvision_empty_framequeues(usbvision); 1082 1083 usbvision->curFrame = NULL; 1084 1085 /* by now we are committed to the new data... */ 1086 down(&usbvision->lock); 1087 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1088 up(&usbvision->lock); 1089 1090 return 0; 1091} 1092 1093static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1094 size_t count, loff_t *ppos) 1095{ 1096 struct video_device *dev = video_devdata(file); 1097 struct usb_usbvision *usbvision = 1098 (struct usb_usbvision *) video_get_drvdata(dev); 1099 int noblock = file->f_flags & O_NONBLOCK; 1100 unsigned long lock_flags; 1101 1102 int ret,i; 1103 struct usbvision_frame *frame; 1104 1105 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, 1106 (unsigned long)count, noblock); 1107 1108 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1109 return -EFAULT; 1110 1111 /* This entry point is compatible with the mmap routines 1112 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF 1113 to get frames or call read on the device. */ 1114 if(!usbvision->num_frames) { 1115 /* First, allocate some frames to work with 1116 if this has not been done with VIDIOC_REQBUF */ 1117 usbvision_frames_free(usbvision); 1118 usbvision_empty_framequeues(usbvision); 1119 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1120 } 1121 1122 if(usbvision->streaming != Stream_On) { 1123 /* no stream is running, make it running ! */ 1124 usbvision->streaming = Stream_On; 1125 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1126 } 1127 1128 /* Then, enqueue as many frames as possible 1129 (like a user of VIDIOC_QBUF would do) */ 1130 for(i=0;i<usbvision->num_frames;i++) { 1131 frame = &usbvision->frame[i]; 1132 if(frame->grabstate == FrameState_Unused) { 1133 /* Mark it as ready and enqueue frame */ 1134 frame->grabstate = FrameState_Ready; 1135 frame->scanstate = ScanState_Scanning; 1136 /* Accumulated in usbvision_parse_data() */ 1137 frame->scanlength = 0; 1138 1139 /* set v4l2_format index */ 1140 frame->v4l2_format = usbvision->palette; 1141 1142 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1143 list_add_tail(&frame->frame, &usbvision->inqueue); 1144 spin_unlock_irqrestore(&usbvision->queue_lock, 1145 lock_flags); 1146 } 1147 } 1148 1149 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1150 if (list_empty(&(usbvision->outqueue))) { 1151 if(noblock) 1152 return -EAGAIN; 1153 1154 ret = wait_event_interruptible 1155 (usbvision->wait_frame, 1156 !list_empty(&(usbvision->outqueue))); 1157 if (ret) 1158 return ret; 1159 } 1160 1161 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1162 frame = list_entry(usbvision->outqueue.next, 1163 struct usbvision_frame, frame); 1164 list_del(usbvision->outqueue.next); 1165 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1166 1167 /* An error returns an empty frame */ 1168 if (frame->grabstate == FrameState_Error) { 1169 frame->bytes_read = 0; 1170 return 0; 1171 } 1172 1173 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", 1174 __FUNCTION__, 1175 frame->index, frame->bytes_read, frame->scanlength); 1176 1177 /* copy bytes to user space; we allow for partials reads */ 1178 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1179 count = frame->scanlength - frame->bytes_read; 1180 1181 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1182 return -EFAULT; 1183 } 1184 1185 frame->bytes_read += count; 1186 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", 1187 __FUNCTION__, 1188 (unsigned long)count, frame->bytes_read); 1189 1190 /* For now, forget the frame if it has not been read in one shot. */ 1191/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1192 frame->bytes_read = 0; 1193 1194 /* Mark it as available to be used again. */ 1195 frame->grabstate = FrameState_Unused; 1196/* } */ 1197 1198 return count; 1199} 1200 1201static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1202{ 1203 unsigned long size = vma->vm_end - vma->vm_start, 1204 start = vma->vm_start; 1205 void *pos; 1206 u32 i; 1207 1208 struct video_device *dev = video_devdata(file); 1209 struct usb_usbvision *usbvision = 1210 (struct usb_usbvision *) video_get_drvdata(dev); 1211 1212 PDEBUG(DBG_MMAP, "mmap"); 1213 1214 down(&usbvision->lock); 1215 1216 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1217 up(&usbvision->lock); 1218 return -EFAULT; 1219 } 1220 1221 if (!(vma->vm_flags & VM_WRITE) || 1222 size != PAGE_ALIGN(usbvision->max_frame_size)) { 1223 up(&usbvision->lock); 1224 return -EINVAL; 1225 } 1226 1227 for (i = 0; i < usbvision->num_frames; i++) { 1228 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == 1229 vma->vm_pgoff) 1230 break; 1231 } 1232 if (i == usbvision->num_frames) { 1233 PDEBUG(DBG_MMAP, 1234 "mmap: user supplied mapping address is out of range"); 1235 up(&usbvision->lock); 1236 return -EINVAL; 1237 } 1238 1239 /* VM_IO is eventually going to replace PageReserved altogether */ 1240 vma->vm_flags |= VM_IO; 1241 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1242 1243 pos = usbvision->frame[i].data; 1244 while (size > 0) { 1245 1246 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1247 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1248 up(&usbvision->lock); 1249 return -EAGAIN; 1250 } 1251 start += PAGE_SIZE; 1252 pos += PAGE_SIZE; 1253 size -= PAGE_SIZE; 1254 } 1255 1256 up(&usbvision->lock); 1257 return 0; 1258} 1259 1260 1261/* 1262 * Here comes the stuff for radio on usbvision based devices 1263 * 1264 */ 1265static int usbvision_radio_open(struct inode *inode, struct file *file) 1266{ 1267 struct video_device *dev = video_devdata(file); 1268 struct usb_usbvision *usbvision = 1269 (struct usb_usbvision *) video_get_drvdata(dev); 1270 int errCode = 0; 1271 1272 PDEBUG(DBG_IO, "%s:", __FUNCTION__); 1273 1274 down(&usbvision->lock); 1275 1276 if (usbvision->user) { 1277 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__); 1278 errCode = -EBUSY; 1279 } 1280 else { 1281 if(PowerOnAtOpen) { 1282 usbvision_reset_powerOffTimer(usbvision); 1283 if (usbvision->power == 0) { 1284 usbvision_power_on(usbvision); 1285 usbvision_i2c_register(usbvision); 1286 } 1287 } 1288 1289 /* Alternate interface 1 is is the biggest frame size */ 1290 errCode = usbvision_set_alternate(usbvision); 1291 if (errCode < 0) { 1292 usbvision->last_error = errCode; 1293 return -EBUSY; 1294 } 1295 1296 // If so far no errors then we shall start the radio 1297 usbvision->radio = 1; 1298 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); 1299 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1300 usbvision->user++; 1301 } 1302 1303 if (errCode) { 1304 if (PowerOnAtOpen) { 1305 usbvision_i2c_unregister(usbvision); 1306 usbvision_power_off(usbvision); 1307 usbvision->initialized = 0; 1308 } 1309 } 1310 up(&usbvision->lock); 1311 return errCode; 1312} 1313 1314 1315static int usbvision_radio_close(struct inode *inode, struct file *file) 1316{ 1317 struct video_device *dev = video_devdata(file); 1318 struct usb_usbvision *usbvision = 1319 (struct usb_usbvision *) video_get_drvdata(dev); 1320 int errCode = 0; 1321 1322 PDEBUG(DBG_IO, ""); 1323 1324 down(&usbvision->lock); 1325 1326 /* Set packet size to 0 */ 1327 usbvision->ifaceAlt=0; 1328 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1329 usbvision->ifaceAlt); 1330 1331 usbvision_audio_off(usbvision); 1332 usbvision->radio=0; 1333 usbvision->user--; 1334 1335 if (PowerOnAtOpen) { 1336 usbvision_set_powerOffTimer(usbvision); 1337 usbvision->initialized = 0; 1338 } 1339 1340 up(&usbvision->lock); 1341 1342 if (usbvision->remove_pending) { 1343 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 1344 usbvision_release(usbvision); 1345 } 1346 1347 1348 PDEBUG(DBG_IO, "success"); 1349 1350 return errCode; 1351} 1352 1353/* 1354 * Here comes the stuff for vbi on usbvision based devices 1355 * 1356 */ 1357static int usbvision_vbi_open(struct inode *inode, struct file *file) 1358{ 1359 /* TODO */ 1360 return -ENODEV; 1361 1362} 1363 1364static int usbvision_vbi_close(struct inode *inode, struct file *file) 1365{ 1366 /* TODO */ 1367 return -ENODEV; 1368} 1369 1370static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, 1371 unsigned int cmd, void *arg) 1372{ 1373 /* TODO */ 1374 return -ENOIOCTLCMD; 1375} 1376 1377static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1378 unsigned int cmd, unsigned long arg) 1379{ 1380 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); 1381} 1382 1383 1384// 1385// Video registration stuff 1386// 1387 1388// Video template 1389static const struct file_operations usbvision_fops = { 1390 .owner = THIS_MODULE, 1391 .open = usbvision_v4l2_open, 1392 .release = usbvision_v4l2_close, 1393 .read = usbvision_v4l2_read, 1394 .mmap = usbvision_v4l2_mmap, 1395 .ioctl = video_ioctl2, 1396 .llseek = no_llseek, 1397/* .poll = video_poll, */ 1398 .compat_ioctl = v4l_compat_ioctl32, 1399}; 1400static struct video_device usbvision_video_template = { 1401 .owner = THIS_MODULE, 1402 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, 1403 .fops = &usbvision_fops, 1404 .name = "usbvision-video", 1405 .release = video_device_release, 1406 .minor = -1, 1407 .vidioc_querycap = vidioc_querycap, 1408 .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, 1409 .vidioc_g_fmt_cap = vidioc_g_fmt_cap, 1410 .vidioc_try_fmt_cap = vidioc_try_fmt_cap, 1411 .vidioc_s_fmt_cap = vidioc_s_fmt_cap, 1412 .vidioc_reqbufs = vidioc_reqbufs, 1413 .vidioc_querybuf = vidioc_querybuf, 1414 .vidioc_qbuf = vidioc_qbuf, 1415 .vidioc_dqbuf = vidioc_dqbuf, 1416 .vidioc_s_std = vidioc_s_std, 1417 .vidioc_enum_input = vidioc_enum_input, 1418 .vidioc_g_input = vidioc_g_input, 1419 .vidioc_s_input = vidioc_s_input, 1420 .vidioc_queryctrl = vidioc_queryctrl, 1421 .vidioc_g_audio = vidioc_g_audio, 1422 .vidioc_s_audio = vidioc_s_audio, 1423 .vidioc_g_ctrl = vidioc_g_ctrl, 1424 .vidioc_s_ctrl = vidioc_s_ctrl, 1425 .vidioc_streamon = vidioc_streamon, 1426 .vidioc_streamoff = vidioc_streamoff, 1427#ifdef CONFIG_VIDEO_V4L1_COMPAT 1428/* .vidiocgmbuf = vidiocgmbuf, */ 1429#endif 1430 .vidioc_g_tuner = vidioc_g_tuner, 1431 .vidioc_s_tuner = vidioc_s_tuner, 1432 .vidioc_g_frequency = vidioc_g_frequency, 1433 .vidioc_s_frequency = vidioc_s_frequency, 1434#ifdef CONFIG_VIDEO_ADV_DEBUG 1435 .vidioc_g_register = vidioc_g_register, 1436 .vidioc_s_register = vidioc_s_register, 1437#endif 1438 .tvnorms = USBVISION_NORMS, 1439 .current_norm = V4L2_STD_PAL 1440}; 1441 1442 1443// Radio template 1444static const struct file_operations usbvision_radio_fops = { 1445 .owner = THIS_MODULE, 1446 .open = usbvision_radio_open, 1447 .release = usbvision_radio_close, 1448 .ioctl = video_ioctl2, 1449 .llseek = no_llseek, 1450 .compat_ioctl = v4l_compat_ioctl32, 1451}; 1452 1453static struct video_device usbvision_radio_template= 1454{ 1455 .owner = THIS_MODULE, 1456 .type = VID_TYPE_TUNER, 1457 .fops = &usbvision_radio_fops, 1458 .name = "usbvision-radio", 1459 .release = video_device_release, 1460 .minor = -1, 1461 .vidioc_querycap = vidioc_querycap, 1462 .vidioc_enum_input = vidioc_enum_input, 1463 .vidioc_g_input = vidioc_g_input, 1464 .vidioc_s_input = vidioc_s_input, 1465 .vidioc_queryctrl = vidioc_queryctrl, 1466 .vidioc_g_audio = vidioc_g_audio, 1467 .vidioc_s_audio = vidioc_s_audio, 1468 .vidioc_g_ctrl = vidioc_g_ctrl, 1469 .vidioc_s_ctrl = vidioc_s_ctrl, 1470 .vidioc_g_tuner = vidioc_g_tuner, 1471 .vidioc_s_tuner = vidioc_s_tuner, 1472 .vidioc_g_frequency = vidioc_g_frequency, 1473 .vidioc_s_frequency = vidioc_s_frequency, 1474 1475 .tvnorms = USBVISION_NORMS, 1476 .current_norm = V4L2_STD_PAL 1477}; 1478 1479// vbi template 1480static const struct file_operations usbvision_vbi_fops = { 1481 .owner = THIS_MODULE, 1482 .open = usbvision_vbi_open, 1483 .release = usbvision_vbi_close, 1484 .ioctl = usbvision_vbi_ioctl, 1485 .llseek = no_llseek, 1486 .compat_ioctl = v4l_compat_ioctl32, 1487}; 1488 1489static struct video_device usbvision_vbi_template= 1490{ 1491 .owner = THIS_MODULE, 1492 .type = VID_TYPE_TUNER, 1493 .fops = &usbvision_vbi_fops, 1494 .release = video_device_release, 1495 .name = "usbvision-vbi", 1496 .minor = -1, 1497}; 1498 1499 1500static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1501 struct video_device *vdev_template, 1502 char *name) 1503{ 1504 struct usb_device *usb_dev = usbvision->dev; 1505 struct video_device *vdev; 1506 1507 if (usb_dev == NULL) { 1508 err("%s: usbvision->dev is not set", __FUNCTION__); 1509 return NULL; 1510 } 1511 1512 vdev = video_device_alloc(); 1513 if (NULL == vdev) { 1514 return NULL; 1515 } 1516 *vdev = *vdev_template; 1517// vdev->minor = -1; 1518 vdev->dev = &usb_dev->dev; 1519 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1520 video_set_drvdata(vdev, usbvision); 1521 return vdev; 1522} 1523 1524// unregister video4linux devices 1525static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1526{ 1527 // vbi Device: 1528 if (usbvision->vbi) { 1529 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", 1530 usbvision->vbi->minor & 0x1f); 1531 if (usbvision->vbi->minor != -1) { 1532 video_unregister_device(usbvision->vbi); 1533 } else { 1534 video_device_release(usbvision->vbi); 1535 } 1536 usbvision->vbi = NULL; 1537 } 1538 1539 // Radio Device: 1540 if (usbvision->rdev) { 1541 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", 1542 usbvision->rdev->minor & 0x1f); 1543 if (usbvision->rdev->minor != -1) { 1544 video_unregister_device(usbvision->rdev); 1545 } else { 1546 video_device_release(usbvision->rdev); 1547 } 1548 usbvision->rdev = NULL; 1549 } 1550 1551 // Video Device: 1552 if (usbvision->vdev) { 1553 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", 1554 usbvision->vdev->minor & 0x1f); 1555 if (usbvision->vdev->minor != -1) { 1556 video_unregister_device(usbvision->vdev); 1557 } else { 1558 video_device_release(usbvision->vdev); 1559 } 1560 usbvision->vdev = NULL; 1561 } 1562} 1563 1564// register video4linux devices 1565static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1566{ 1567 // Video Device: 1568 usbvision->vdev = usbvision_vdev_init(usbvision, 1569 &usbvision_video_template, 1570 "USBVision Video"); 1571 if (usbvision->vdev == NULL) { 1572 goto err_exit; 1573 } 1574 if (video_register_device(usbvision->vdev, 1575 VFL_TYPE_GRABBER, 1576 video_nr)<0) { 1577 goto err_exit; 1578 } 1579 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", 1580 usbvision->nr,usbvision->vdev->minor & 0x1f); 1581 1582 // Radio Device: 1583 if (usbvision_device_data[usbvision->DevModel].Radio) { 1584 // usbvision has radio 1585 usbvision->rdev = usbvision_vdev_init(usbvision, 1586 &usbvision_radio_template, 1587 "USBVision Radio"); 1588 if (usbvision->rdev == NULL) { 1589 goto err_exit; 1590 } 1591 if (video_register_device(usbvision->rdev, 1592 VFL_TYPE_RADIO, 1593 radio_nr)<0) { 1594 goto err_exit; 1595 } 1596 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", 1597 usbvision->nr, usbvision->rdev->minor & 0x1f); 1598 } 1599 // vbi Device: 1600 if (usbvision_device_data[usbvision->DevModel].vbi) { 1601 usbvision->vbi = usbvision_vdev_init(usbvision, 1602 &usbvision_vbi_template, 1603 "USBVision VBI"); 1604 if (usbvision->vdev == NULL) { 1605 goto err_exit; 1606 } 1607 if (video_register_device(usbvision->vbi, 1608 VFL_TYPE_VBI, 1609 vbi_nr)<0) { 1610 goto err_exit; 1611 } 1612 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", 1613 usbvision->nr,usbvision->vbi->minor & 0x1f); 1614 } 1615 // all done 1616 return 0; 1617 1618 err_exit: 1619 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1620 usbvision_unregister_video(usbvision); 1621 return -1; 1622} 1623 1624/* 1625 * usbvision_alloc() 1626 * 1627 * This code allocates the struct usb_usbvision. 1628 * It is filled with default values. 1629 * 1630 * Returns NULL on error, a pointer to usb_usbvision else. 1631 * 1632 */ 1633static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1634{ 1635 struct usb_usbvision *usbvision; 1636 1637 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == 1638 NULL) { 1639 goto err_exit; 1640 } 1641 1642 usbvision->dev = dev; 1643 1644 init_MUTEX(&usbvision->lock); /* to 1 == available */ 1645 1646 // prepare control urb for control messages during interrupts 1647 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1648 if (usbvision->ctrlUrb == NULL) { 1649 goto err_exit; 1650 } 1651 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1652 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ 1653 1654 usbvision_init_powerOffTimer(usbvision); 1655 1656 return usbvision; 1657 1658err_exit: 1659 if (usbvision && usbvision->ctrlUrb) { 1660 usb_free_urb(usbvision->ctrlUrb); 1661 } 1662 if (usbvision) { 1663 kfree(usbvision); 1664 } 1665 return NULL; 1666} 1667 1668/* 1669 * usbvision_release() 1670 * 1671 * This code does final release of struct usb_usbvision. This happens 1672 * after the device is disconnected -and- all clients closed their files. 1673 * 1674 */ 1675static void usbvision_release(struct usb_usbvision *usbvision) 1676{ 1677 PDEBUG(DBG_PROBE, ""); 1678 1679 down(&usbvision->lock); 1680 1681 usbvision_reset_powerOffTimer(usbvision); 1682 1683 usbvision->initialized = 0; 1684 1685 up(&usbvision->lock); 1686 1687 usbvision_remove_sysfs(usbvision->vdev); 1688 usbvision_unregister_video(usbvision); 1689 1690 if (usbvision->ctrlUrb) { 1691 usb_free_urb(usbvision->ctrlUrb); 1692 } 1693 1694 kfree(usbvision); 1695 1696 PDEBUG(DBG_PROBE, "success"); 1697} 1698 1699 1700/*********************** usb interface **********************************/ 1701 1702static void usbvision_configure_video(struct usb_usbvision *usbvision) 1703{ 1704 int model; 1705 1706 if (usbvision == NULL) 1707 return; 1708 1709 model = usbvision->DevModel; 1710 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1711 1712 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { 1713 usbvision->Vin_Reg2_Preset = 1714 usbvision_device_data[usbvision->DevModel].Vin_Reg2; 1715 } else { 1716 usbvision->Vin_Reg2_Preset = 0; 1717 } 1718 1719 usbvision->tvnormId = usbvision_device_data[model].VideoNorm; 1720 1721 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1722 usbvision->ctl_input = 0; 1723 1724 /* This should be here to make i2c clients to be able to register */ 1725 /* first switch off audio */ 1726 usbvision_audio_off(usbvision); 1727 if (!PowerOnAtOpen) { 1728 /* and then power up the noisy tuner */ 1729 usbvision_power_on(usbvision); 1730 usbvision_i2c_register(usbvision); 1731 } 1732} 1733 1734/* 1735 * usbvision_probe() 1736 * 1737 * This procedure queries device descriptor and accepts the interface 1738 * if it looks like USBVISION video device 1739 * 1740 */ 1741static int __devinit usbvision_probe(struct usb_interface *intf, 1742 const struct usb_device_id *devid) 1743{ 1744 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1745 struct usb_interface *uif; 1746 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1747 const struct usb_host_interface *interface; 1748 struct usb_usbvision *usbvision = NULL; 1749 const struct usb_endpoint_descriptor *endpoint; 1750 int model,i; 1751 1752 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1753 dev->descriptor.idVendor, 1754 dev->descriptor.idProduct, ifnum); 1755 1756 model = devid->driver_info; 1757 if ( (model<0) || (model>=usbvision_device_data_size) ) { 1758 PDEBUG(DBG_PROBE, "model out of bounds %d",model); 1759 return -ENODEV; 1760 } 1761 printk(KERN_INFO "%s: %s found\n", __FUNCTION__, 1762 usbvision_device_data[model].ModelString); 1763 1764 if (usbvision_device_data[model].Interface >= 0) { 1765 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1766 } else { 1767 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1768 } 1769 endpoint = &interface->endpoint[1].desc; 1770 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != 1771 USB_ENDPOINT_XFER_ISOC) { 1772 err("%s: interface %d. has non-ISO endpoint!", 1773 __FUNCTION__, ifnum); 1774 err("%s: Endpoint attributes %d", 1775 __FUNCTION__, endpoint->bmAttributes); 1776 return -ENODEV; 1777 } 1778 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == 1779 USB_DIR_OUT) { 1780 err("%s: interface %d. has ISO OUT endpoint!", 1781 __FUNCTION__, ifnum); 1782 return -ENODEV; 1783 } 1784 1785 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1786 err("%s: couldn't allocate USBVision struct", __FUNCTION__); 1787 return -ENOMEM; 1788 } 1789 1790 if (dev->descriptor.bNumConfigurations > 1) { 1791 usbvision->bridgeType = BRIDGE_NT1004; 1792 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) { 1793 usbvision->bridgeType = BRIDGE_NT1005; 1794 } else { 1795 usbvision->bridgeType = BRIDGE_NT1003; 1796 } 1797 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1798 1799 down(&usbvision->lock); 1800 1801 /* compute alternate max packet sizes */ 1802 uif = dev->actconfig->interface[0]; 1803 1804 usbvision->num_alt=uif->num_altsetting; 1805 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1806 usbvision->alt_max_pkt_size = kmalloc(32* 1807 usbvision->num_alt,GFP_KERNEL); 1808 if (usbvision->alt_max_pkt_size == NULL) { 1809 err("usbvision: out of memory!\n"); 1810 return -ENOMEM; 1811 } 1812 1813 for (i = 0; i < usbvision->num_alt ; i++) { 1814 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1815 wMaxPacketSize); 1816 usbvision->alt_max_pkt_size[i] = 1817 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1818 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1819 usbvision->alt_max_pkt_size[i]); 1820 } 1821 1822 1823 usbvision->nr = usbvision_nr++; 1824 1825 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1826 if (usbvision->have_tuner) { 1827 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1828 } 1829 1830 usbvision->tuner_addr = ADDR_UNSET; 1831 1832 usbvision->DevModel = model; 1833 usbvision->remove_pending = 0; 1834 usbvision->iface = ifnum; 1835 usbvision->ifaceAlt = 0; 1836 usbvision->video_endp = endpoint->bEndpointAddress; 1837 usbvision->isocPacketSize = 0; 1838 usbvision->usb_bandwidth = 0; 1839 usbvision->user = 0; 1840 usbvision->streaming = Stream_Off; 1841 usbvision_register_video(usbvision); 1842 usbvision_configure_video(usbvision); 1843 up(&usbvision->lock); 1844 1845 1846 usb_set_intfdata (intf, usbvision); 1847 usbvision_create_sysfs(usbvision->vdev); 1848 1849 PDEBUG(DBG_PROBE, "success"); 1850 return 0; 1851} 1852 1853 1854/* 1855 * usbvision_disconnect() 1856 * 1857 * This procedure stops all driver activity, deallocates interface-private 1858 * structure (pointed by 'ptr') and after that driver should be removable 1859 * with no ill consequences. 1860 * 1861 */ 1862static void __devexit usbvision_disconnect(struct usb_interface *intf) 1863{ 1864 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1865 1866 PDEBUG(DBG_PROBE, ""); 1867 1868 if (usbvision == NULL) { 1869 err("%s: usb_get_intfdata() failed", __FUNCTION__); 1870 return; 1871 } 1872 usb_set_intfdata (intf, NULL); 1873 1874 down(&usbvision->lock); 1875 1876 // At this time we ask to cancel outstanding URBs 1877 usbvision_stop_isoc(usbvision); 1878 1879 if (usbvision->power) { 1880 usbvision_i2c_unregister(usbvision); 1881 usbvision_power_off(usbvision); 1882 } 1883 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1884 1885 usb_put_dev(usbvision->dev); 1886 usbvision->dev = NULL; // USB device is no more 1887 1888 up(&usbvision->lock); 1889 1890 if (usbvision->user) { 1891 printk(KERN_INFO "%s: In use, disconnect pending\n", 1892 __FUNCTION__); 1893 wake_up_interruptible(&usbvision->wait_frame); 1894 wake_up_interruptible(&usbvision->wait_stream); 1895 } else { 1896 usbvision_release(usbvision); 1897 } 1898 1899 PDEBUG(DBG_PROBE, "success"); 1900 1901} 1902 1903static struct usb_driver usbvision_driver = { 1904 .name = "usbvision", 1905 .id_table = usbvision_table, 1906 .probe = usbvision_probe, 1907 .disconnect = usbvision_disconnect 1908}; 1909 1910/* 1911 * usbvision_init() 1912 * 1913 * This code is run to initialize the driver. 1914 * 1915 */ 1916static int __init usbvision_init(void) 1917{ 1918 int errCode; 1919 1920 PDEBUG(DBG_PROBE, ""); 1921 1922 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 1923 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 1924 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 1925 1926 /* disable planar mode support unless compression enabled */ 1927 if (isocMode != ISOC_MODE_COMPRESS ) { 1928 // FIXME : not the right way to set supported flag 1929 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 1930 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 1931 } 1932 1933 errCode = usb_register(&usbvision_driver); 1934 1935 if (errCode == 0) { 1936 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 1937 PDEBUG(DBG_PROBE, "success"); 1938 } 1939 return errCode; 1940} 1941 1942static void __exit usbvision_exit(void) 1943{ 1944 PDEBUG(DBG_PROBE, ""); 1945 1946 usb_deregister(&usbvision_driver); 1947 PDEBUG(DBG_PROBE, "success"); 1948} 1949 1950module_init(usbvision_init); 1951module_exit(usbvision_exit); 1952 1953/* 1954 * Overrides for Emacs so that we follow Linus's tabbing style. 1955 * --------------------------------------------------------------------------- 1956 * Local variables: 1957 * c-basic-offset: 8 1958 * End: 1959 */ 1960