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. Seems impossible, needs a codec interface. Which one? 40 * - Clean up the driver. 41 * - optimization for performance. 42 * - Add Videotext capability (VBI). Working on it..... 43 * - Check audio for other devices 44 * 45 */ 46 47#include <linux/version.h> 48#include <linux/kernel.h> 49#include <linux/list.h> 50#include <linux/timer.h> 51#include <linux/slab.h> 52#include <linux/mm.h> 53#include <linux/utsname.h> 54#include <linux/highmem.h> 55#include <linux/videodev.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/tuner.h> 68#include <media/audiochip.h> 69 70#include <linux/moduleparam.h> 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>, 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,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL) 89#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) 90 91#define ENABLE_HEXDUMP 0 /* Enable if you need it */ 92 93 94#ifdef USBVISION_DEBUG 95 #define PDEBUG(level, fmt, args...) \ 96 if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args) 97#else 98 #define PDEBUG(level, fmt, args...) do {} while(0) 99#endif 100 101#define DBG_IOCTL 1<<0 102#define DBG_IO 1<<1 103#define DBG_PROBE 1<<2 104#define DBG_MMAP 1<<3 105 106//String operations 107#define rmspace(str) while(*str==' ') str++; 108#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; 109 110 111static int usbvision_nr = 0; // sequential number of usbvision device 112 113static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { 114 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, 115 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, 116 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, 117 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, 118 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, 119 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, 120 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 ! 121 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } 122}; 123 124/* supported tv norms */ 125static struct usbvision_tvnorm tvnorms[] = { 126 { 127 .name = "PAL", 128 .id = V4L2_STD_PAL, 129 }, { 130 .name = "NTSC", 131 .id = V4L2_STD_NTSC, 132 }, { 133 .name = "SECAM", 134 .id = V4L2_STD_SECAM, 135 }, { 136 .name = "PAL-M", 137 .id = V4L2_STD_PAL_M, 138 } 139}; 140 141#define TVNORMS ARRAY_SIZE(tvnorms) 142 143// Function prototypes 144static void usbvision_release(struct usb_usbvision *usbvision); 145 146// Default initalization of device driver parameters 147static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint 148static int video_debug = 0; // Set the default Debug Mode of the device driver 149static int PowerOnAtOpen = 1; // Set the default device to power on at startup 150static int video_nr = -1; // Sequential Number of Video Device 151static int radio_nr = -1; // Sequential Number of Radio Device 152static int vbi_nr = -1; // Sequential Number of VBI Device 153 154// Grab parameters for the device driver 155 156#if defined(module_param) // Showing parameters under SYSFS 157module_param(isocMode, int, 0444); 158module_param(video_debug, int, 0444); 159module_param(PowerOnAtOpen, int, 0444); 160module_param(video_nr, int, 0444); 161module_param(radio_nr, int, 0444); 162module_param(vbi_nr, int, 0444); 163#else // Old Style 164MODULE_PARAM(isocMode, "i"); 165MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver 166MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive 167MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup 168MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. 169MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...) 170MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...) 171MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...) 172#endif 173 174MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); 175MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); 176MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); 177MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); 178MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); 179MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); 180 181 182// Misc stuff 183MODULE_AUTHOR(DRIVER_AUTHOR); 184MODULE_DESCRIPTION(DRIVER_DESC); 185MODULE_LICENSE(DRIVER_LICENSE); 186MODULE_VERSION(USBVISION_VERSION_STRING); 187MODULE_ALIAS(DRIVER_ALIAS); 188 189 190/****************************************************************************************/ 191/* SYSFS Code - Copied from the stv680.c usb module. */ 192/* Device information is located at /sys/class/video4linux/video0 */ 193/* Device parameters information is located at /sys/module/usbvision */ 194/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */ 195/****************************************************************************************/ 196 197 198#define YES_NO(x) ((x) ? "Yes" : "No") 199 200static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd) 201{ 202 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 203 return video_get_drvdata(vdev); 204} 205 206static ssize_t show_version(struct class_device *cd, char *buf) 207{ 208 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); 209} 210static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL); 211 212static ssize_t show_model(struct class_device *cd, char *buf) 213{ 214 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 215 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 216 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); 217} 218static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); 219 220static ssize_t show_hue(struct class_device *cd, char *buf) 221{ 222 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 223 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 224 struct v4l2_control ctrl; 225 ctrl.id = V4L2_CID_HUE; 226 ctrl.value = 0; 227 if(usbvision->user) 228 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 229 return sprintf(buf, "%d\n", ctrl.value); 230} 231static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); 232 233static ssize_t show_contrast(struct class_device *cd, char *buf) 234{ 235 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 236 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 237 struct v4l2_control ctrl; 238 ctrl.id = V4L2_CID_CONTRAST; 239 ctrl.value = 0; 240 if(usbvision->user) 241 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 242 return sprintf(buf, "%d\n", ctrl.value); 243} 244static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); 245 246static ssize_t show_brightness(struct class_device *cd, char *buf) 247{ 248 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 249 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 250 struct v4l2_control ctrl; 251 ctrl.id = V4L2_CID_BRIGHTNESS; 252 ctrl.value = 0; 253 if(usbvision->user) 254 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 255 return sprintf(buf, "%d\n", ctrl.value); 256} 257static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); 258 259static ssize_t show_saturation(struct class_device *cd, char *buf) 260{ 261 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 262 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 263 struct v4l2_control ctrl; 264 ctrl.id = V4L2_CID_SATURATION; 265 ctrl.value = 0; 266 if(usbvision->user) 267 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 268 return sprintf(buf, "%d\n", ctrl.value); 269} 270static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); 271 272static ssize_t show_streaming(struct class_device *cd, char *buf) 273{ 274 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 275 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 276 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); 277} 278static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); 279 280static ssize_t show_compression(struct class_device *cd, char *buf) 281{ 282 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 283 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 284 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); 285} 286static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); 287 288static ssize_t show_device_bridge(struct class_device *cd, char *buf) 289{ 290 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 291 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 292 return sprintf(buf, "%d\n", usbvision->bridgeType); 293} 294static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); 295 296static void usbvision_create_sysfs(struct video_device *vdev) 297{ 298 int res; 299 if (!vdev) 300 return; 301 do { 302 res=class_device_create_file(&vdev->class_dev, 303 &class_device_attr_version); 304 if (res<0) 305 break; 306 res=class_device_create_file(&vdev->class_dev, 307 &class_device_attr_model); 308 if (res<0) 309 break; 310 res=class_device_create_file(&vdev->class_dev, 311 &class_device_attr_hue); 312 if (res<0) 313 break; 314 res=class_device_create_file(&vdev->class_dev, 315 &class_device_attr_contrast); 316 if (res<0) 317 break; 318 res=class_device_create_file(&vdev->class_dev, 319 &class_device_attr_brightness); 320 if (res<0) 321 break; 322 res=class_device_create_file(&vdev->class_dev, 323 &class_device_attr_saturation); 324 if (res<0) 325 break; 326 res=class_device_create_file(&vdev->class_dev, 327 &class_device_attr_streaming); 328 if (res<0) 329 break; 330 res=class_device_create_file(&vdev->class_dev, 331 &class_device_attr_compression); 332 if (res<0) 333 break; 334 res=class_device_create_file(&vdev->class_dev, 335 &class_device_attr_bridge); 336 if (res>=0) 337 return; 338 } while (0); 339 340 err("%s error: %d\n", __FUNCTION__, res); 341} 342 343static void usbvision_remove_sysfs(struct video_device *vdev) 344{ 345 if (vdev) { 346 class_device_remove_file(&vdev->class_dev, 347 &class_device_attr_version); 348 class_device_remove_file(&vdev->class_dev, 349 &class_device_attr_model); 350 class_device_remove_file(&vdev->class_dev, 351 &class_device_attr_hue); 352 class_device_remove_file(&vdev->class_dev, 353 &class_device_attr_contrast); 354 class_device_remove_file(&vdev->class_dev, 355 &class_device_attr_brightness); 356 class_device_remove_file(&vdev->class_dev, 357 &class_device_attr_saturation); 358 class_device_remove_file(&vdev->class_dev, 359 &class_device_attr_streaming); 360 class_device_remove_file(&vdev->class_dev, 361 &class_device_attr_compression); 362 class_device_remove_file(&vdev->class_dev, 363 &class_device_attr_bridge); 364 } 365} 366 367 368/* 369 * usbvision_open() 370 * 371 * This is part of Video 4 Linux API. The driver can be opened by one 372 * client only (checks internal counter 'usbvision->user'). The procedure 373 * then allocates buffers needed for video processing. 374 * 375 */ 376static int usbvision_v4l2_open(struct inode *inode, struct file *file) 377{ 378 struct video_device *dev = video_devdata(file); 379 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 380 int errCode = 0; 381 382 PDEBUG(DBG_IO, "open"); 383 384 385 usbvision_reset_powerOffTimer(usbvision); 386 387 if (usbvision->user) 388 errCode = -EBUSY; 389 else { 390 /* Allocate memory for the scratch ring buffer */ 391 errCode = usbvision_scratch_alloc(usbvision); 392 if (isocMode==ISOC_MODE_COMPRESS) { 393 /* Allocate intermediate decompression buffers only if needed */ 394 errCode = usbvision_decompress_alloc(usbvision); 395 } 396 if (errCode) { 397 /* Deallocate all buffers if trouble */ 398 usbvision_scratch_free(usbvision); 399 usbvision_decompress_free(usbvision); 400 } 401 } 402 403 /* If so far no errors then we shall start the camera */ 404 if (!errCode) { 405 down(&usbvision->lock); 406 if (usbvision->power == 0) { 407 usbvision_power_on(usbvision); 408 usbvision_i2c_register(usbvision); 409 } 410 411 /* Send init sequence only once, it's large! */ 412 if (!usbvision->initialized) { 413 int setup_ok = 0; 414 setup_ok = usbvision_setup(usbvision,isocMode); 415 if (setup_ok) 416 usbvision->initialized = 1; 417 else 418 errCode = -EBUSY; 419 } 420 421 if (!errCode) { 422 usbvision_begin_streaming(usbvision); 423 errCode = usbvision_init_isoc(usbvision); 424 /* device needs to be initialized before isoc transfer */ 425 usbvision_muxsel(usbvision,0); 426 usbvision->user++; 427 } 428 else { 429 if (PowerOnAtOpen) { 430 usbvision_i2c_unregister(usbvision); 431 usbvision_power_off(usbvision); 432 usbvision->initialized = 0; 433 } 434 } 435 up(&usbvision->lock); 436 } 437 438 if (errCode) { 439 } 440 441 /* prepare queues */ 442 usbvision_empty_framequeues(usbvision); 443 444 PDEBUG(DBG_IO, "success"); 445 return errCode; 446} 447 448/* 449 * usbvision_v4l2_close() 450 * 451 * This is part of Video 4 Linux API. The procedure 452 * stops streaming and deallocates all buffers that were earlier 453 * allocated in usbvision_v4l2_open(). 454 * 455 */ 456static int usbvision_v4l2_close(struct inode *inode, struct file *file) 457{ 458 struct video_device *dev = video_devdata(file); 459 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 460 461 PDEBUG(DBG_IO, "close"); 462 down(&usbvision->lock); 463 464 usbvision_audio_off(usbvision); 465 usbvision_restart_isoc(usbvision); 466 usbvision_stop_isoc(usbvision); 467 468 usbvision_decompress_free(usbvision); 469 usbvision_frames_free(usbvision); 470 usbvision_empty_framequeues(usbvision); 471 usbvision_scratch_free(usbvision); 472 473 usbvision->user--; 474 475 if (PowerOnAtOpen) { 476 /* power off in a little while to avoid off/on every close/open short sequences */ 477 usbvision_set_powerOffTimer(usbvision); 478 usbvision->initialized = 0; 479 } 480 481 up(&usbvision->lock); 482 483 if (usbvision->remove_pending) { 484 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 485 usbvision_release(usbvision); 486 } 487 488 PDEBUG(DBG_IO, "success"); 489 490 491 return 0; 492} 493 494 495/* 496 * usbvision_ioctl() 497 * 498 * This is part of Video 4 Linux API. The procedure handles ioctl() calls. 499 * 500 */ 501static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, 502 unsigned int cmd, void *arg) 503{ 504 struct video_device *dev = video_devdata(file); 505 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 506 507 if (!USBVISION_IS_OPERATIONAL(usbvision)) 508 return -EFAULT; 509 510 switch (cmd) { 511 512#ifdef CONFIG_VIDEO_ADV_DEBUG 513 /* ioctls to allow direct acces to the NT100x registers */ 514 case VIDIOC_DBG_G_REGISTER: 515 case VIDIOC_DBG_S_REGISTER: 516 { 517 struct v4l2_register *reg = arg; 518 int errCode; 519 520 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 521 return -EINVAL; 522 if (!capable(CAP_SYS_ADMIN)) 523 return -EPERM; 524 /* NT100x has a 8-bit register space */ 525 if (cmd == VIDIOC_DBG_G_REGISTER) 526 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 527 else 528 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 529 if (errCode < 0) { 530 err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__, 531 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode); 532 return errCode; 533 } 534 if (cmd == VIDIOC_DBG_S_REGISTER) 535 reg->val = (u8)errCode; 536 537 PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X", 538 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', 539 (unsigned int)reg->reg, (unsigned int)reg->val); 540 return 0; 541 } 542#endif 543 case VIDIOC_QUERYCAP: 544 { 545 struct v4l2_capability *vc=arg; 546 547 memset(vc, 0, sizeof(*vc)); 548 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 549 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 550 sizeof(vc->card)); 551 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 552 sizeof(vc->bus_info)); 553 vc->version = USBVISION_DRIVER_VERSION; 554 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 555 V4L2_CAP_AUDIO | 556 V4L2_CAP_READWRITE | 557 V4L2_CAP_STREAMING | 558 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 559 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); 560 return 0; 561 } 562 case VIDIOC_ENUMINPUT: 563 { 564 struct v4l2_input *vi = arg; 565 int chan; 566 567 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 568 return -EINVAL; 569 if (usbvision->have_tuner) { 570 chan = vi->index; 571 } 572 else { 573 chan = vi->index + 1; //skip Television string 574 } 575 switch(chan) { 576 case 0: 577 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 578 strcpy(vi->name, "White Video Input"); 579 } 580 else { 581 strcpy(vi->name, "Television"); 582 vi->type = V4L2_INPUT_TYPE_TUNER; 583 vi->audioset = 1; 584 vi->tuner = chan; 585 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; 586 } 587 break; 588 case 1: 589 vi->type = V4L2_INPUT_TYPE_CAMERA; 590 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 591 strcpy(vi->name, "Green Video Input"); 592 } 593 else { 594 strcpy(vi->name, "Composite Video Input"); 595 } 596 vi->std = V4L2_STD_PAL; 597 break; 598 case 2: 599 vi->type = V4L2_INPUT_TYPE_CAMERA; 600 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 601 strcpy(vi->name, "Yellow Video Input"); 602 } 603 else { 604 strcpy(vi->name, "S-Video Input"); 605 } 606 vi->std = V4L2_STD_PAL; 607 break; 608 case 3: 609 vi->type = V4L2_INPUT_TYPE_CAMERA; 610 strcpy(vi->name, "Red Video Input"); 611 vi->std = V4L2_STD_PAL; 612 break; 613 } 614 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", 615 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); 616 return 0; 617 } 618 case VIDIOC_ENUMSTD: 619 { 620 struct v4l2_standard *e = arg; 621 unsigned int i; 622 int ret; 623 624 i = e->index; 625 if (i >= TVNORMS) 626 return -EINVAL; 627 ret = v4l2_video_std_construct(e, tvnorms[e->index].id, 628 tvnorms[e->index].name); 629 e->index = i; 630 if (ret < 0) 631 return ret; 632 return 0; 633 } 634 case VIDIOC_G_INPUT: 635 { 636 int *input = arg; 637 *input = usbvision->ctl_input; 638 return 0; 639 } 640 case VIDIOC_S_INPUT: 641 { 642 int *input = arg; 643 if ((*input >= usbvision->video_inputs) || (*input < 0) ) 644 return -EINVAL; 645 usbvision->ctl_input = *input; 646 647 down(&usbvision->lock); 648 usbvision_muxsel(usbvision, usbvision->ctl_input); 649 usbvision_set_input(usbvision); 650 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); 651 up(&usbvision->lock); 652 return 0; 653 } 654 case VIDIOC_G_STD: 655 { 656 v4l2_std_id *id = arg; 657 658 *id = usbvision->tvnorm->id; 659 660 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); 661 return 0; 662 } 663 case VIDIOC_S_STD: 664 { 665 v4l2_std_id *id = arg; 666 unsigned int i; 667 668 for (i = 0; i < TVNORMS; i++) 669 if (*id == tvnorms[i].id) 670 break; 671 if (i == TVNORMS) 672 for (i = 0; i < TVNORMS; i++) 673 if (*id & tvnorms[i].id) 674 break; 675 if (i == TVNORMS) 676 return -EINVAL; 677 678 down(&usbvision->lock); 679 usbvision->tvnorm = &tvnorms[i]; 680 681 call_i2c_clients(usbvision, VIDIOC_S_STD, 682 &usbvision->tvnorm->id); 683 684 up(&usbvision->lock); 685 686 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); 687 return 0; 688 } 689 case VIDIOC_G_TUNER: 690 { 691 struct v4l2_tuner *vt = arg; 692 693 if (!usbvision->have_tuner || vt->index) // Only tuner 0 694 return -EINVAL; 695 strcpy(vt->name, "Television"); 696 /* Let clients fill in the remainder of this struct */ 697 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 698 699 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); 700 return 0; 701 } 702 case VIDIOC_S_TUNER: 703 { 704 struct v4l2_tuner *vt = arg; 705 706 // Only no or one tuner for now 707 if (!usbvision->have_tuner || vt->index) 708 return -EINVAL; 709 /* let clients handle this */ 710 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 711 712 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); 713 return 0; 714 } 715 case VIDIOC_G_FREQUENCY: 716 { 717 struct v4l2_frequency *freq = arg; 718 719 freq->tuner = 0; // Only one tuner 720 freq->type = V4L2_TUNER_ANALOG_TV; 721 freq->frequency = usbvision->freq; 722 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 723 return 0; 724 } 725 case VIDIOC_S_FREQUENCY: 726 { 727 struct v4l2_frequency *freq = arg; 728 729 // Only no or one tuner for now 730 if (!usbvision->have_tuner || freq->tuner) 731 return -EINVAL; 732 733 usbvision->freq = freq->frequency; 734 call_i2c_clients(usbvision, cmd, freq); 735 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 736 return 0; 737 } 738 case VIDIOC_G_AUDIO: 739 { 740 struct v4l2_audio *v = arg; 741 memset(v,0, sizeof(v)); 742 strcpy(v->name, "TV"); 743 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); 744 return 0; 745 } 746 case VIDIOC_S_AUDIO: 747 { 748 struct v4l2_audio *v = arg; 749 if(v->index) { 750 return -EINVAL; 751 } 752 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); 753 return 0; 754 } 755 case VIDIOC_QUERYCTRL: 756 { 757 struct v4l2_queryctrl *ctrl = arg; 758 int id=ctrl->id; 759 760 memset(ctrl,0,sizeof(*ctrl)); 761 ctrl->id=id; 762 763 call_i2c_clients(usbvision, cmd, arg); 764 765 if (ctrl->type) 766 return 0; 767 else 768 return -EINVAL; 769 770 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 771 } 772 case VIDIOC_G_CTRL: 773 { 774 struct v4l2_control *ctrl = arg; 775 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 776 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 777 return 0; 778 } 779 case VIDIOC_S_CTRL: 780 { 781 struct v4l2_control *ctrl = arg; 782 783 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 784 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 785 return 0; 786 } 787 case VIDIOC_REQBUFS: 788 { 789 struct v4l2_requestbuffers *vr = arg; 790 int ret; 791 792 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 793 794 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method. 795 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 796 (vr->memory != V4L2_MEMORY_MMAP)) 797 return -EINVAL; 798 799 if(usbvision->streaming == Stream_On) { 800 if ((ret = usbvision_stream_interrupt(usbvision))) 801 return ret; 802 } 803 804 usbvision_frames_free(usbvision); 805 usbvision_empty_framequeues(usbvision); 806 vr->count = usbvision_frames_alloc(usbvision,vr->count); 807 808 usbvision->curFrame = NULL; 809 810 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); 811 return 0; 812 } 813 case VIDIOC_QUERYBUF: 814 { 815 struct v4l2_buffer *vb = arg; 816 struct usbvision_frame *frame; 817 818 819 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 820 return -EINVAL; 821 } 822 if(vb->index>=usbvision->num_frames) { 823 return -EINVAL; 824 } 825 // Updating the corresponding frame state 826 vb->flags = 0; 827 frame = &usbvision->frame[vb->index]; 828 if(frame->grabstate >= FrameState_Ready) 829 vb->flags |= V4L2_BUF_FLAG_QUEUED; 830 if(frame->grabstate >= FrameState_Done) 831 vb->flags |= V4L2_BUF_FLAG_DONE; 832 if(frame->grabstate == FrameState_Unused) 833 vb->flags |= V4L2_BUF_FLAG_MAPPED; 834 vb->memory = V4L2_MEMORY_MMAP; 835 836 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 837 838 vb->memory = V4L2_MEMORY_MMAP; 839 vb->field = V4L2_FIELD_NONE; 840 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel; 841 vb->timestamp = usbvision->frame[vb->index].timestamp; 842 vb->sequence = usbvision->frame[vb->index].sequence; 843 return 0; 844 } 845 case VIDIOC_QBUF: 846 { 847 struct v4l2_buffer *vb = arg; 848 struct usbvision_frame *frame; 849 unsigned long lock_flags; 850 851 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 852 return -EINVAL; 853 } 854 if(vb->index>=usbvision->num_frames) { 855 return -EINVAL; 856 } 857 858 frame = &usbvision->frame[vb->index]; 859 860 if (frame->grabstate != FrameState_Unused) { 861 return -EAGAIN; 862 } 863 864 /* Mark it as ready and enqueue frame */ 865 frame->grabstate = FrameState_Ready; 866 frame->scanstate = ScanState_Scanning; 867 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 868 869 vb->flags &= ~V4L2_BUF_FLAG_DONE; 870 871 /* set v4l2_format index */ 872 frame->v4l2_format = usbvision->palette; 873 874 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 875 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 876 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 877 878 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); 879 return 0; 880 } 881 case VIDIOC_DQBUF: 882 { 883 struct v4l2_buffer *vb = arg; 884 int ret; 885 struct usbvision_frame *f; 886 unsigned long lock_flags; 887 888 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 889 return -EINVAL; 890 891 if (list_empty(&(usbvision->outqueue))) { 892 if (usbvision->streaming == Stream_Idle) 893 return -EINVAL; 894 ret = wait_event_interruptible 895 (usbvision->wait_frame, 896 !list_empty(&(usbvision->outqueue))); 897 if (ret) 898 return ret; 899 } 900 901 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 902 f = list_entry(usbvision->outqueue.next, 903 struct usbvision_frame, frame); 904 list_del(usbvision->outqueue.next); 905 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 906 907 f->grabstate = FrameState_Unused; 908 909 vb->memory = V4L2_MEMORY_MMAP; 910 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE; 911 vb->index = f->index; 912 vb->sequence = f->sequence; 913 vb->timestamp = f->timestamp; 914 vb->field = V4L2_FIELD_NONE; 915 vb->bytesused = f->scanlength; 916 917 return 0; 918 } 919 case VIDIOC_STREAMON: 920 { 921 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 922 923 usbvision->streaming = Stream_On; 924 925 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 926 927 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); 928 929 return 0; 930 } 931 case VIDIOC_STREAMOFF: 932 { 933 int *type = arg; 934 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 935 936 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 937 return -EINVAL; 938 939 if(usbvision->streaming == Stream_On) { 940 usbvision_stream_interrupt(usbvision); 941 // Stop all video streamings 942 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 943 } 944 usbvision_empty_framequeues(usbvision); 945 946 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); 947 return 0; 948 } 949 case VIDIOC_ENUM_FMT: 950 { 951 struct v4l2_fmtdesc *vfd = arg; 952 953 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 954 return -EINVAL; 955 } 956 vfd->flags = 0; 957 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 958 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 959 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 960 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 961 return 0; 962 } 963 case VIDIOC_G_FMT: 964 { 965 struct v4l2_format *vf = arg; 966 967 switch (vf->type) { 968 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 969 { 970 vf->fmt.pix.width = usbvision->curwidth; 971 vf->fmt.pix.height = usbvision->curheight; 972 vf->fmt.pix.pixelformat = usbvision->palette.format; 973 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel; 974 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 975 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 976 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 977 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", 978 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 979 return 0; 980 } 981 default: 982 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); 983 return -EINVAL; 984 } 985 return 0; 986 } 987 case VIDIOC_TRY_FMT: 988 case VIDIOC_S_FMT: 989 { 990 struct v4l2_format *vf = arg; 991 int formatIdx,ret; 992 993 switch(vf->type) { 994 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 995 { 996 /* Find requested format in available ones */ 997 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 998 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { 999 usbvision->palette = usbvision_v4l2_format[formatIdx]; 1000 break; 1001 } 1002 } 1003 /* robustness */ 1004 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 1005 return -EINVAL; 1006 } 1007 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 1008 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 1009 1010 vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel; 1011 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 1012 1013 if(cmd == VIDIOC_TRY_FMT) { 1014 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", 1015 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1016 return 0; 1017 } 1018 1019 /* stop io in case it is already in progress */ 1020 if(usbvision->streaming == Stream_On) { 1021 if ((ret = usbvision_stream_interrupt(usbvision))) 1022 return ret; 1023 } 1024 usbvision_frames_free(usbvision); 1025 usbvision_empty_framequeues(usbvision); 1026 1027 usbvision->curFrame = NULL; 1028 1029 // by now we are committed to the new data... 1030 down(&usbvision->lock); 1031 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1032 up(&usbvision->lock); 1033 1034 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", 1035 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1036 return 0; 1037 } 1038 default: 1039 return -EINVAL; 1040 } 1041 } 1042 default: 1043 return -ENOIOCTLCMD; 1044 } 1045 return 0; 1046} 1047 1048static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, 1049 unsigned int cmd, unsigned long arg) 1050{ 1051 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); 1052} 1053 1054 1055static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1056 size_t count, loff_t *ppos) 1057{ 1058 struct video_device *dev = video_devdata(file); 1059 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1060 int noblock = file->f_flags & O_NONBLOCK; 1061 unsigned long lock_flags; 1062 1063 int ret,i; 1064 struct usbvision_frame *frame; 1065 1066 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock); 1067 1068 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1069 return -EFAULT; 1070 1071 /* This entry point is compatible with the mmap routines so that a user can do either 1072 VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */ 1073 if(!usbvision->num_frames) { 1074 /* First, allocate some frames to work with if this has not been done with 1075 VIDIOC_REQBUF */ 1076 usbvision_frames_free(usbvision); 1077 usbvision_empty_framequeues(usbvision); 1078 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1079 } 1080 1081 if(usbvision->streaming != Stream_On) { 1082 /* no stream is running, make it running ! */ 1083 usbvision->streaming = Stream_On; 1084 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1085 } 1086 1087 /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ 1088 for(i=0;i<usbvision->num_frames;i++) { 1089 frame = &usbvision->frame[i]; 1090 if(frame->grabstate == FrameState_Unused) { 1091 /* Mark it as ready and enqueue frame */ 1092 frame->grabstate = FrameState_Ready; 1093 frame->scanstate = ScanState_Scanning; 1094 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 1095 1096 /* set v4l2_format index */ 1097 frame->v4l2_format = usbvision->palette; 1098 1099 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1100 list_add_tail(&frame->frame, &usbvision->inqueue); 1101 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1102 } 1103 } 1104 1105 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1106 if (list_empty(&(usbvision->outqueue))) { 1107 if(noblock) 1108 return -EAGAIN; 1109 1110 ret = wait_event_interruptible 1111 (usbvision->wait_frame, 1112 !list_empty(&(usbvision->outqueue))); 1113 if (ret) 1114 return ret; 1115 } 1116 1117 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1118 frame = list_entry(usbvision->outqueue.next, 1119 struct usbvision_frame, frame); 1120 list_del(usbvision->outqueue.next); 1121 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1122 1123 /* An error returns an empty frame */ 1124 if (frame->grabstate == FrameState_Error) { 1125 frame->bytes_read = 0; 1126 return 0; 1127 } 1128 1129 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, 1130 frame->index, frame->bytes_read, frame->scanlength); 1131 1132 /* copy bytes to user space; we allow for partials reads */ 1133 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1134 count = frame->scanlength - frame->bytes_read; 1135 1136 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1137 return -EFAULT; 1138 } 1139 1140 frame->bytes_read += count; 1141 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__, 1142 (unsigned long)count, frame->bytes_read); 1143 1144 // For now, forget the frame if it has not been read in one shot. 1145/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1146 frame->bytes_read = 0; 1147 1148 /* Mark it as available to be used again. */ 1149 frame->grabstate = FrameState_Unused; 1150/* } */ 1151 1152 return count; 1153} 1154 1155static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1156{ 1157 unsigned long size = vma->vm_end - vma->vm_start, 1158 start = vma->vm_start; 1159 void *pos; 1160 u32 i; 1161 1162 struct video_device *dev = video_devdata(file); 1163 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1164 1165 PDEBUG(DBG_MMAP, "mmap"); 1166 1167 down(&usbvision->lock); 1168 1169 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1170 up(&usbvision->lock); 1171 return -EFAULT; 1172 } 1173 1174 if (!(vma->vm_flags & VM_WRITE) || 1175 size != PAGE_ALIGN(usbvision->max_frame_size)) { 1176 up(&usbvision->lock); 1177 return -EINVAL; 1178 } 1179 1180 for (i = 0; i < usbvision->num_frames; i++) { 1181 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff) 1182 break; 1183 } 1184 if (i == usbvision->num_frames) { 1185 PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range"); 1186 up(&usbvision->lock); 1187 return -EINVAL; 1188 } 1189 1190 /* VM_IO is eventually going to replace PageReserved altogether */ 1191 vma->vm_flags |= VM_IO; 1192 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1193 1194 pos = usbvision->frame[i].data; 1195 while (size > 0) { 1196 1197 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1198 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1199 up(&usbvision->lock); 1200 return -EAGAIN; 1201 } 1202 start += PAGE_SIZE; 1203 pos += PAGE_SIZE; 1204 size -= PAGE_SIZE; 1205 } 1206 1207 up(&usbvision->lock); 1208 return 0; 1209} 1210 1211 1212/* 1213 * Here comes the stuff for radio on usbvision based devices 1214 * 1215 */ 1216static int usbvision_radio_open(struct inode *inode, struct file *file) 1217{ 1218 struct video_device *dev = video_devdata(file); 1219 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1220 struct v4l2_frequency freq; 1221 int errCode = 0; 1222 1223 PDEBUG(DBG_IO, "%s:", __FUNCTION__); 1224 1225 down(&usbvision->lock); 1226 1227 if (usbvision->user) { 1228 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__); 1229 errCode = -EBUSY; 1230 } 1231 else { 1232 if(PowerOnAtOpen) { 1233 usbvision_reset_powerOffTimer(usbvision); 1234 if (usbvision->power == 0) { 1235 usbvision_power_on(usbvision); 1236 usbvision_i2c_register(usbvision); 1237 } 1238 } 1239 1240 /* Alternate interface 1 is is the biggest frame size */ 1241 errCode = usbvision_set_alternate(usbvision); 1242 if (errCode < 0) { 1243 usbvision->last_error = errCode; 1244 return -EBUSY; 1245 } 1246 1247 // If so far no errors then we shall start the radio 1248 usbvision->radio = 1; 1249 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); 1250 freq.frequency = 1517; //SWR3 @ 94.8MHz 1251 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq); 1252 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1253 usbvision->user++; 1254 } 1255 1256 if (errCode) { 1257 if (PowerOnAtOpen) { 1258 usbvision_i2c_unregister(usbvision); 1259 usbvision_power_off(usbvision); 1260 usbvision->initialized = 0; 1261 } 1262 } 1263 up(&usbvision->lock); 1264 return errCode; 1265} 1266 1267 1268static int usbvision_radio_close(struct inode *inode, struct file *file) 1269{ 1270 struct video_device *dev = video_devdata(file); 1271 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1272 int errCode = 0; 1273 1274 PDEBUG(DBG_IO, ""); 1275 1276 down(&usbvision->lock); 1277 1278 /* Set packet size to 0 */ 1279 usbvision->ifaceAlt=0; 1280 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1281 usbvision->ifaceAlt); 1282 1283 usbvision_audio_off(usbvision); 1284 usbvision->radio=0; 1285 usbvision->user--; 1286 1287 if (PowerOnAtOpen) { 1288 usbvision_set_powerOffTimer(usbvision); 1289 usbvision->initialized = 0; 1290 } 1291 1292 up(&usbvision->lock); 1293 1294 if (usbvision->remove_pending) { 1295 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 1296 usbvision_release(usbvision); 1297 } 1298 1299 1300 PDEBUG(DBG_IO, "success"); 1301 1302 return errCode; 1303} 1304 1305static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, 1306 unsigned int cmd, void *arg) 1307{ 1308 struct video_device *dev = video_devdata(file); 1309 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1310 1311 if (!USBVISION_IS_OPERATIONAL(usbvision)) 1312 return -EIO; 1313 1314 switch (cmd) { 1315 case VIDIOC_QUERYCAP: 1316 { 1317 struct v4l2_capability *vc=arg; 1318 1319 memset(vc, 0, sizeof(*vc)); 1320 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 1321 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 1322 sizeof(vc->card)); 1323 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 1324 sizeof(vc->bus_info)); 1325 vc->version = USBVISION_DRIVER_VERSION; 1326 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 1327 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); 1328 return 0; 1329 } 1330 case VIDIOC_QUERYCTRL: 1331 { 1332 struct v4l2_queryctrl *ctrl = arg; 1333 int id=ctrl->id; 1334 1335 memset(ctrl,0,sizeof(*ctrl)); 1336 ctrl->id=id; 1337 1338 call_i2c_clients(usbvision, cmd, arg); 1339 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 1340 1341 if (ctrl->type) 1342 return 0; 1343 else 1344 return -EINVAL; 1345 1346 } 1347 case VIDIOC_G_CTRL: 1348 { 1349 struct v4l2_control *ctrl = arg; 1350 1351 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 1352 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1353 return 0; 1354 } 1355 case VIDIOC_S_CTRL: 1356 { 1357 struct v4l2_control *ctrl = arg; 1358 1359 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 1360 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1361 return 0; 1362 } 1363 case VIDIOC_G_TUNER: 1364 { 1365 struct v4l2_tuner *t = arg; 1366 1367 if (t->index > 0) 1368 return -EINVAL; 1369 1370 memset(t,0,sizeof(*t)); 1371 strcpy(t->name, "Radio"); 1372 t->type = V4L2_TUNER_RADIO; 1373 1374 /* Let clients fill in the remainder of this struct */ 1375 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); 1376 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); 1377 return 0; 1378 } 1379 case VIDIOC_S_TUNER: 1380 { 1381 struct v4l2_tuner *vt = arg; 1382 1383 // Only no or one tuner for now 1384 if (!usbvision->have_tuner || vt->index) 1385 return -EINVAL; 1386 /* let clients handle this */ 1387 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 1388 1389 PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); 1390 return 0; 1391 } 1392 case VIDIOC_G_AUDIO: 1393 { 1394 struct v4l2_audio *a = arg; 1395 1396 memset(a,0,sizeof(*a)); 1397 strcpy(a->name,"Radio"); 1398 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); 1399 return 0; 1400 } 1401 case VIDIOC_S_AUDIO: 1402 case VIDIOC_S_INPUT: 1403 case VIDIOC_S_STD: 1404 return 0; 1405 1406 case VIDIOC_G_FREQUENCY: 1407 { 1408 struct v4l2_frequency *f = arg; 1409 1410 memset(f,0,sizeof(*f)); 1411 1412 f->type = V4L2_TUNER_RADIO; 1413 f->frequency = usbvision->freq; 1414 call_i2c_clients(usbvision, cmd, f); 1415 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1416 1417 return 0; 1418 } 1419 case VIDIOC_S_FREQUENCY: 1420 { 1421 struct v4l2_frequency *f = arg; 1422 1423 if (f->tuner != 0) 1424 return -EINVAL; 1425 usbvision->freq = f->frequency; 1426 call_i2c_clients(usbvision, cmd, f); 1427 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1428 1429 return 0; 1430 } 1431 default: 1432 { 1433 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); 1434 return -ENOIOCTLCMD; 1435 } 1436 } 1437 return 0; 1438} 1439 1440 1441static int usbvision_radio_ioctl(struct inode *inode, struct file *file, 1442 unsigned int cmd, unsigned long arg) 1443{ 1444 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); 1445} 1446 1447 1448/* 1449 * Here comes the stuff for vbi on usbvision based devices 1450 * 1451 */ 1452static int usbvision_vbi_open(struct inode *inode, struct file *file) 1453{ 1454 /* TODO */ 1455 return -EINVAL; 1456 1457} 1458 1459static int usbvision_vbi_close(struct inode *inode, struct file *file) 1460{ 1461 /* TODO */ 1462 return -EINVAL; 1463} 1464 1465static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, 1466 unsigned int cmd, void *arg) 1467{ 1468 /* TODO */ 1469 return -EINVAL; 1470} 1471 1472static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1473 unsigned int cmd, unsigned long arg) 1474{ 1475 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); 1476} 1477 1478 1479// 1480// Video registration stuff 1481// 1482 1483// Video template 1484static const struct file_operations usbvision_fops = { 1485 .owner = THIS_MODULE, 1486 .open = usbvision_v4l2_open, 1487 .release = usbvision_v4l2_close, 1488 .read = usbvision_v4l2_read, 1489 .mmap = usbvision_v4l2_mmap, 1490 .ioctl = usbvision_v4l2_ioctl, 1491 .llseek = no_llseek, 1492}; 1493static struct video_device usbvision_video_template = { 1494 .owner = THIS_MODULE, 1495 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, 1496 .hardware = VID_HARDWARE_USBVISION, 1497 .fops = &usbvision_fops, 1498 .name = "usbvision-video", 1499 .release = video_device_release, 1500 .minor = -1, 1501}; 1502 1503 1504// Radio template 1505static const struct file_operations usbvision_radio_fops = { 1506 .owner = THIS_MODULE, 1507 .open = usbvision_radio_open, 1508 .release = usbvision_radio_close, 1509 .ioctl = usbvision_radio_ioctl, 1510 .llseek = no_llseek, 1511}; 1512 1513static struct video_device usbvision_radio_template= 1514{ 1515 .owner = THIS_MODULE, 1516 .type = VID_TYPE_TUNER, 1517 .hardware = VID_HARDWARE_USBVISION, 1518 .fops = &usbvision_radio_fops, 1519 .release = video_device_release, 1520 .name = "usbvision-radio", 1521 .minor = -1, 1522}; 1523 1524 1525// vbi template 1526static const struct file_operations usbvision_vbi_fops = { 1527 .owner = THIS_MODULE, 1528 .open = usbvision_vbi_open, 1529 .release = usbvision_vbi_close, 1530 .ioctl = usbvision_vbi_ioctl, 1531 .llseek = no_llseek, 1532}; 1533 1534static struct video_device usbvision_vbi_template= 1535{ 1536 .owner = THIS_MODULE, 1537 .type = VID_TYPE_TUNER, 1538 .hardware = VID_HARDWARE_USBVISION, 1539 .fops = &usbvision_vbi_fops, 1540 .release = video_device_release, 1541 .name = "usbvision-vbi", 1542 .minor = -1, 1543}; 1544 1545 1546static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1547 struct video_device *vdev_template, 1548 char *name) 1549{ 1550 struct usb_device *usb_dev = usbvision->dev; 1551 struct video_device *vdev; 1552 1553 if (usb_dev == NULL) { 1554 err("%s: usbvision->dev is not set", __FUNCTION__); 1555 return NULL; 1556 } 1557 1558 vdev = video_device_alloc(); 1559 if (NULL == vdev) { 1560 return NULL; 1561 } 1562 *vdev = *vdev_template; 1563// vdev->minor = -1; 1564 vdev->dev = &usb_dev->dev; 1565 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1566 video_set_drvdata(vdev, usbvision); 1567 return vdev; 1568} 1569 1570// unregister video4linux devices 1571static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1572{ 1573 // vbi Device: 1574 if (usbvision->vbi) { 1575 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); 1576 if (usbvision->vbi->minor != -1) { 1577 video_unregister_device(usbvision->vbi); 1578 } 1579 else { 1580 video_device_release(usbvision->vbi); 1581 } 1582 usbvision->vbi = NULL; 1583 } 1584 1585 // Radio Device: 1586 if (usbvision->rdev) { 1587 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); 1588 if (usbvision->rdev->minor != -1) { 1589 video_unregister_device(usbvision->rdev); 1590 } 1591 else { 1592 video_device_release(usbvision->rdev); 1593 } 1594 usbvision->rdev = NULL; 1595 } 1596 1597 // Video Device: 1598 if (usbvision->vdev) { 1599 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); 1600 if (usbvision->vdev->minor != -1) { 1601 video_unregister_device(usbvision->vdev); 1602 } 1603 else { 1604 video_device_release(usbvision->vdev); 1605 } 1606 usbvision->vdev = NULL; 1607 } 1608} 1609 1610// register video4linux devices 1611static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1612{ 1613 // Video Device: 1614 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video"); 1615 if (usbvision->vdev == NULL) { 1616 goto err_exit; 1617 } 1618 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) { 1619 goto err_exit; 1620 } 1621 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f); 1622 1623 // Radio Device: 1624 if (usbvision_device_data[usbvision->DevModel].Radio) { 1625 // usbvision has radio 1626 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio"); 1627 if (usbvision->rdev == NULL) { 1628 goto err_exit; 1629 } 1630 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) { 1631 goto err_exit; 1632 } 1633 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f); 1634 } 1635 // vbi Device: 1636 if (usbvision_device_data[usbvision->DevModel].vbi) { 1637 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); 1638 if (usbvision->vdev == NULL) { 1639 goto err_exit; 1640 } 1641 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { 1642 goto err_exit; 1643 } 1644 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f); 1645 } 1646 // all done 1647 return 0; 1648 1649 err_exit: 1650 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1651 usbvision_unregister_video(usbvision); 1652 return -1; 1653} 1654 1655/* 1656 * usbvision_alloc() 1657 * 1658 * This code allocates the struct usb_usbvision. It is filled with default values. 1659 * 1660 * Returns NULL on error, a pointer to usb_usbvision else. 1661 * 1662 */ 1663static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1664{ 1665 struct usb_usbvision *usbvision; 1666 1667 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { 1668 goto err_exit; 1669 } 1670 1671 usbvision->dev = dev; 1672 1673 init_MUTEX(&usbvision->lock); /* to 1 == available */ 1674 1675 // prepare control urb for control messages during interrupts 1676 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1677 if (usbvision->ctrlUrb == NULL) { 1678 goto err_exit; 1679 } 1680 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1681 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ 1682 1683 usbvision_init_powerOffTimer(usbvision); 1684 1685 return usbvision; 1686 1687err_exit: 1688 if (usbvision && usbvision->ctrlUrb) { 1689 usb_free_urb(usbvision->ctrlUrb); 1690 } 1691 if (usbvision) { 1692 kfree(usbvision); 1693 } 1694 return NULL; 1695} 1696 1697/* 1698 * usbvision_release() 1699 * 1700 * This code does final release of struct usb_usbvision. This happens 1701 * after the device is disconnected -and- all clients closed their files. 1702 * 1703 */ 1704static void usbvision_release(struct usb_usbvision *usbvision) 1705{ 1706 PDEBUG(DBG_PROBE, ""); 1707 1708 down(&usbvision->lock); 1709 1710 usbvision_reset_powerOffTimer(usbvision); 1711 1712 usbvision->initialized = 0; 1713 1714 up(&usbvision->lock); 1715 1716 usbvision_remove_sysfs(usbvision->vdev); 1717 usbvision_unregister_video(usbvision); 1718 1719 if (usbvision->ctrlUrb) { 1720 usb_free_urb(usbvision->ctrlUrb); 1721 } 1722 1723 kfree(usbvision); 1724 1725 PDEBUG(DBG_PROBE, "success"); 1726} 1727 1728 1729/******************************** usb interface *****************************************/ 1730 1731static void usbvision_configure_video(struct usb_usbvision *usbvision) 1732{ 1733 int model,i; 1734 1735 if (usbvision == NULL) 1736 return; 1737 1738 model = usbvision->DevModel; 1739 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1740 1741 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { 1742 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2; 1743 } else { 1744 usbvision->Vin_Reg2_Preset = 0; 1745 } 1746 1747 for (i = 0; i < TVNORMS; i++) 1748 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) 1749 break; 1750 if (i == TVNORMS) 1751 i = 0; 1752 usbvision->tvnorm = &tvnorms[i]; /* set default norm */ 1753 1754 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1755 usbvision->ctl_input = 0; 1756 1757 /* This should be here to make i2c clients to be able to register */ 1758 usbvision_audio_off(usbvision); //first switch off audio 1759 if (!PowerOnAtOpen) { 1760 usbvision_power_on(usbvision); //and then power up the noisy tuner 1761 usbvision_i2c_register(usbvision); 1762 } 1763} 1764 1765/* 1766 * usbvision_probe() 1767 * 1768 * This procedure queries device descriptor and accepts the interface 1769 * if it looks like USBVISION video device 1770 * 1771 */ 1772static int __devinit usbvision_probe(struct usb_interface *intf, 1773 const struct usb_device_id *devid) 1774{ 1775 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1776 struct usb_interface *uif; 1777 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1778 const struct usb_host_interface *interface; 1779 struct usb_usbvision *usbvision = NULL; 1780 const struct usb_endpoint_descriptor *endpoint; 1781 int model,i; 1782 1783 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1784 dev->descriptor.idVendor, 1785 dev->descriptor.idProduct, ifnum); 1786 1787 model = devid->driver_info; 1788 if ( (model<0) || (model>=usbvision_device_data_size) ) { 1789 PDEBUG(DBG_PROBE, "model out of bounds %d",model); 1790 return -ENODEV; 1791 } 1792 printk(KERN_INFO "%s: %s found\n", __FUNCTION__, 1793 usbvision_device_data[model].ModelString); 1794 1795 if (usbvision_device_data[model].Interface >= 0) { 1796 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1797 } 1798 else { 1799 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1800 } 1801 endpoint = &interface->endpoint[1].desc; 1802 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { 1803 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); 1804 err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes); 1805 return -ENODEV; 1806 } 1807 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { 1808 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum); 1809 return -ENODEV; 1810 } 1811 1812 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1813 err("%s: couldn't allocate USBVision struct", __FUNCTION__); 1814 return -ENOMEM; 1815 } 1816 1817 if (dev->descriptor.bNumConfigurations > 1) { 1818 usbvision->bridgeType = BRIDGE_NT1004; 1819 } 1820 else if (model == DAZZLE_DVC_90_REV_1_SECAM) { 1821 usbvision->bridgeType = BRIDGE_NT1005; 1822 } 1823 else { 1824 usbvision->bridgeType = BRIDGE_NT1003; 1825 } 1826 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1827 1828 down(&usbvision->lock); 1829 1830 /* compute alternate max packet sizes */ 1831 uif = dev->actconfig->interface[0]; 1832 1833 usbvision->num_alt=uif->num_altsetting; 1834 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1835 usbvision->alt_max_pkt_size = kmalloc(32* 1836 usbvision->num_alt,GFP_KERNEL); 1837 if (usbvision->alt_max_pkt_size == NULL) { 1838 err("usbvision: out of memory!\n"); 1839 return -ENOMEM; 1840 } 1841 1842 for (i = 0; i < usbvision->num_alt ; i++) { 1843 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1844 wMaxPacketSize); 1845 usbvision->alt_max_pkt_size[i] = 1846 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1847 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1848 usbvision->alt_max_pkt_size[i]); 1849 } 1850 1851 1852 usbvision->nr = usbvision_nr++; 1853 1854 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1855 if (usbvision->have_tuner) { 1856 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1857 } 1858 1859 usbvision->tuner_addr = ADDR_UNSET; 1860 1861 usbvision->DevModel = model; 1862 usbvision->remove_pending = 0; 1863 usbvision->iface = ifnum; 1864 usbvision->ifaceAlt = 0; 1865 usbvision->video_endp = endpoint->bEndpointAddress; 1866 usbvision->isocPacketSize = 0; 1867 usbvision->usb_bandwidth = 0; 1868 usbvision->user = 0; 1869 usbvision->streaming = Stream_Off; 1870 usbvision_register_video(usbvision); 1871 usbvision_configure_video(usbvision); 1872 up(&usbvision->lock); 1873 1874 1875 usb_set_intfdata (intf, usbvision); 1876 usbvision_create_sysfs(usbvision->vdev); 1877 1878 PDEBUG(DBG_PROBE, "success"); 1879 return 0; 1880} 1881 1882 1883/* 1884 * usbvision_disconnect() 1885 * 1886 * This procedure stops all driver activity, deallocates interface-private 1887 * structure (pointed by 'ptr') and after that driver should be removable 1888 * with no ill consequences. 1889 * 1890 */ 1891static void __devexit usbvision_disconnect(struct usb_interface *intf) 1892{ 1893 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1894 1895 PDEBUG(DBG_PROBE, ""); 1896 1897 if (usbvision == NULL) { 1898 err("%s: usb_get_intfdata() failed", __FUNCTION__); 1899 return; 1900 } 1901 usb_set_intfdata (intf, NULL); 1902 1903 down(&usbvision->lock); 1904 1905 // At this time we ask to cancel outstanding URBs 1906 usbvision_stop_isoc(usbvision); 1907 1908 if (usbvision->power) { 1909 usbvision_i2c_unregister(usbvision); 1910 usbvision_power_off(usbvision); 1911 } 1912 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1913 1914 usb_put_dev(usbvision->dev); 1915 usbvision->dev = NULL; // USB device is no more 1916 1917 up(&usbvision->lock); 1918 1919 if (usbvision->user) { 1920 printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__); 1921 wake_up_interruptible(&usbvision->wait_frame); 1922 wake_up_interruptible(&usbvision->wait_stream); 1923 } 1924 else { 1925 usbvision_release(usbvision); 1926 } 1927 1928 PDEBUG(DBG_PROBE, "success"); 1929 1930} 1931 1932static struct usb_driver usbvision_driver = { 1933 .name = "usbvision", 1934 .id_table = usbvision_table, 1935 .probe = usbvision_probe, 1936 .disconnect = usbvision_disconnect 1937}; 1938 1939/* 1940 * usbvision_init() 1941 * 1942 * This code is run to initialize the driver. 1943 * 1944 */ 1945static int __init usbvision_init(void) 1946{ 1947 int errCode; 1948 1949 PDEBUG(DBG_PROBE, ""); 1950 1951 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); 1952 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 1953 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 1954 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 1955 1956 /* disable planar mode support unless compression enabled */ 1957 if (isocMode != ISOC_MODE_COMPRESS ) { 1958 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 1959 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 1960 } 1961 1962 errCode = usb_register(&usbvision_driver); 1963 1964 if (errCode == 0) { 1965 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 1966 PDEBUG(DBG_PROBE, "success"); 1967 } 1968 return errCode; 1969} 1970 1971static void __exit usbvision_exit(void) 1972{ 1973 PDEBUG(DBG_PROBE, ""); 1974 1975 usb_deregister(&usbvision_driver); 1976 PDEBUG(DBG_PROBE, "success"); 1977} 1978 1979module_init(usbvision_init); 1980module_exit(usbvision_exit); 1981 1982/* 1983 * Overrides for Emacs so that we follow Linus's tabbing style. 1984 * --------------------------------------------------------------------------- 1985 * Local variables: 1986 * c-basic-offset: 8 1987 * End: 1988 */ 1989