usbvision-video.c revision ed00b41dc8bc286682d31ad64060ccc70513e90b
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/sched.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/smp_lock.h> 57#include <linux/videodev.h> 58#include <linux/vmalloc.h> 59#include <linux/module.h> 60#include <linux/init.h> 61#include <linux/spinlock.h> 62#include <asm/io.h> 63#include <linux/videodev2.h> 64#include <linux/video_decoder.h> 65#include <linux/i2c.h> 66 67#include <media/saa7115.h> 68#include <media/v4l2-common.h> 69#include <media/tuner.h> 70#include <media/audiochip.h> 71 72#include <linux/moduleparam.h> 73#include <linux/workqueue.h> 74 75#ifdef CONFIG_KMOD 76#include <linux/kmod.h> 77#endif 78 79#include "usbvision.h" 80 81#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, 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,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL) 90#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) 91 92#define ENABLE_HEXDUMP 0 /* Enable if you need it */ 93 94 95#ifdef USBVISION_DEBUG 96 #define PDEBUG(level, fmt, args...) \ 97 if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args) 98#else 99 #define PDEBUG(level, fmt, args...) do {} while(0) 100#endif 101 102#define DBG_IOCTL 1<<0 103#define DBG_IO 1<<1 104#define DBG_PROBE 1<<2 105#define DBG_MMAP 1<<3 106 107//String operations 108#define rmspace(str) while(*str==' ') str++; 109#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; 110 111 112static int usbvision_nr = 0; // sequential number of usbvision device 113 114static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { 115 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, 116 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, 117 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, 118 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, 119 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, 120 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, 121 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 ! 122 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } 123}; 124 125/* supported tv norms */ 126static struct usbvision_tvnorm tvnorms[] = { 127 { 128 .name = "PAL", 129 .id = V4L2_STD_PAL, 130 }, { 131 .name = "NTSC", 132 .id = V4L2_STD_NTSC, 133 }, { 134 .name = "SECAM", 135 .id = V4L2_STD_SECAM, 136 }, { 137 .name = "PAL-M", 138 .id = V4L2_STD_PAL_M, 139 } 140}; 141 142#define TVNORMS ARRAY_SIZE(tvnorms) 143 144// Function prototypes 145static void usbvision_release(struct usb_usbvision *usbvision); 146 147// Default initalization of device driver parameters 148static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint 149static int video_debug = 0; // Set the default Debug Mode of the device driver 150static int PowerOnAtOpen = 1; // Set the default device to power on at startup 151static int video_nr = -1; // Sequential Number of Video Device 152static int radio_nr = -1; // Sequential Number of Radio Device 153static int vbi_nr = -1; // Sequential Number of VBI Device 154static char *CustomDevice=NULL; // Set as nothing.... 155 156// Grab parameters for the device driver 157 158#if defined(module_param) // Showing parameters under SYSFS 159module_param(isocMode, int, 0444); 160module_param(video_debug, int, 0444); 161module_param(PowerOnAtOpen, int, 0444); 162module_param(video_nr, int, 0444); 163module_param(radio_nr, int, 0444); 164module_param(vbi_nr, int, 0444); 165module_param(CustomDevice, charp, 0444); 166#else // Old Style 167MODULE_PARAM(isocMode, "i"); 168MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver 169MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive 170MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup 171MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. 172MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...) 173MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...) 174MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...) 175MODULE_PARM(CustomDevice, "s"); // .... CustomDevice 176#endif 177 178MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); 179MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); 180MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); 181MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); 182MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); 183MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); 184MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null"); 185 186 187// Misc stuff 188MODULE_AUTHOR(DRIVER_AUTHOR); 189MODULE_DESCRIPTION(DRIVER_DESC); 190MODULE_LICENSE(DRIVER_LICENSE); 191MODULE_VERSION(USBVISION_VERSION_STRING); 192MODULE_ALIAS(DRIVER_ALIAS); 193 194 195/****************************************************************************************/ 196/* SYSFS Code - Copied from the stv680.c usb module. */ 197/* Device information is located at /sys/class/video4linux/video0 */ 198/* Device parameters information is located at /sys/module/usbvision */ 199/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */ 200/****************************************************************************************/ 201 202 203#define YES_NO(x) ((x) ? "Yes" : "No") 204 205static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd) 206{ 207 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 208 return video_get_drvdata(vdev); 209} 210 211static ssize_t show_version(struct class_device *cd, char *buf) 212{ 213 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); 214} 215static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL); 216 217static ssize_t show_model(struct class_device *cd, char *buf) 218{ 219 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 220 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 221 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); 222} 223static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); 224 225static ssize_t show_hue(struct class_device *cd, char *buf) 226{ 227 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 228 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 229 struct v4l2_control ctrl; 230 ctrl.id = V4L2_CID_HUE; 231 ctrl.value = 0; 232 if(usbvision->user) 233 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 234 return sprintf(buf, "%d\n", ctrl.value >> 8); 235} 236static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); 237 238static ssize_t show_contrast(struct class_device *cd, char *buf) 239{ 240 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 241 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 242 struct v4l2_control ctrl; 243 ctrl.id = V4L2_CID_CONTRAST; 244 ctrl.value = 0; 245 if(usbvision->user) 246 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 247 return sprintf(buf, "%d\n", ctrl.value >> 8); 248} 249static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); 250 251static ssize_t show_brightness(struct class_device *cd, char *buf) 252{ 253 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 254 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 255 struct v4l2_control ctrl; 256 ctrl.id = V4L2_CID_BRIGHTNESS; 257 ctrl.value = 0; 258 if(usbvision->user) 259 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 260 return sprintf(buf, "%d\n", ctrl.value >> 8); 261} 262static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); 263 264static ssize_t show_saturation(struct class_device *cd, char *buf) 265{ 266 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 267 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 268 struct v4l2_control ctrl; 269 ctrl.id = V4L2_CID_SATURATION; 270 ctrl.value = 0; 271 if(usbvision->user) 272 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 273 return sprintf(buf, "%d\n", ctrl.value >> 8); 274} 275static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); 276 277static ssize_t show_streaming(struct class_device *cd, char *buf) 278{ 279 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 280 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 281 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); 282} 283static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); 284 285static ssize_t show_compression(struct class_device *cd, char *buf) 286{ 287 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 288 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 289 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); 290} 291static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); 292 293static ssize_t show_device_bridge(struct class_device *cd, char *buf) 294{ 295 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 296 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 297 return sprintf(buf, "%d\n", usbvision->bridgeType); 298} 299static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); 300 301static void usbvision_create_sysfs(struct video_device *vdev) 302{ 303 int res; 304 if (!vdev) 305 return; 306 do { 307 res=class_device_create_file(&vdev->class_dev, 308 &class_device_attr_version); 309 if (res<0) 310 break; 311 res=class_device_create_file(&vdev->class_dev, 312 &class_device_attr_model); 313 if (res<0) 314 break; 315 res=class_device_create_file(&vdev->class_dev, 316 &class_device_attr_hue); 317 if (res<0) 318 break; 319 res=class_device_create_file(&vdev->class_dev, 320 &class_device_attr_contrast); 321 if (res<0) 322 break; 323 res=class_device_create_file(&vdev->class_dev, 324 &class_device_attr_brightness); 325 if (res<0) 326 break; 327 res=class_device_create_file(&vdev->class_dev, 328 &class_device_attr_saturation); 329 if (res<0) 330 break; 331 res=class_device_create_file(&vdev->class_dev, 332 &class_device_attr_streaming); 333 if (res<0) 334 break; 335 res=class_device_create_file(&vdev->class_dev, 336 &class_device_attr_compression); 337 if (res<0) 338 break; 339 res=class_device_create_file(&vdev->class_dev, 340 &class_device_attr_bridge); 341 if (res>=0) 342 return; 343 } while (0); 344 345 err("%s error: %d\n", __FUNCTION__, res); 346} 347 348static void usbvision_remove_sysfs(struct video_device *vdev) 349{ 350 if (vdev) { 351 class_device_remove_file(&vdev->class_dev, 352 &class_device_attr_version); 353 class_device_remove_file(&vdev->class_dev, 354 &class_device_attr_model); 355 class_device_remove_file(&vdev->class_dev, 356 &class_device_attr_hue); 357 class_device_remove_file(&vdev->class_dev, 358 &class_device_attr_contrast); 359 class_device_remove_file(&vdev->class_dev, 360 &class_device_attr_brightness); 361 class_device_remove_file(&vdev->class_dev, 362 &class_device_attr_saturation); 363 class_device_remove_file(&vdev->class_dev, 364 &class_device_attr_streaming); 365 class_device_remove_file(&vdev->class_dev, 366 &class_device_attr_compression); 367 class_device_remove_file(&vdev->class_dev, 368 &class_device_attr_bridge); 369 } 370} 371 372 373/* 374 * usbvision_open() 375 * 376 * This is part of Video 4 Linux API. The driver can be opened by one 377 * client only (checks internal counter 'usbvision->user'). The procedure 378 * then allocates buffers needed for video processing. 379 * 380 */ 381static int usbvision_v4l2_open(struct inode *inode, struct file *file) 382{ 383 struct video_device *dev = video_devdata(file); 384 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 385 int errCode = 0; 386 387 PDEBUG(DBG_IO, "open"); 388 389 390 usbvision_reset_powerOffTimer(usbvision); 391 392 if (usbvision->user) 393 errCode = -EBUSY; 394 else { 395 /* Allocate memory for the frame buffers */ 396 errCode = usbvision_frames_alloc(usbvision); 397 if(!errCode) { 398 /* Allocate memory for the scratch ring buffer */ 399 errCode = usbvision_scratch_alloc(usbvision); 400 if ((!errCode) && (isocMode==ISOC_MODE_COMPRESS)) { 401 /* Allocate intermediate decompression buffers only if needed */ 402 errCode = usbvision_decompress_alloc(usbvision); 403 } 404 } 405 if (errCode) { 406 /* Deallocate all buffers if trouble */ 407 usbvision_frames_free(usbvision); 408 usbvision_scratch_free(usbvision); 409 usbvision_decompress_free(usbvision); 410 } 411 } 412 413 /* If so far no errors then we shall start the camera */ 414 if (!errCode) { 415 down(&usbvision->lock); 416 if (usbvision->power == 0) { 417 usbvision_power_on(usbvision); 418 usbvision_init_i2c(usbvision); 419 } 420 421 /* Send init sequence only once, it's large! */ 422 if (!usbvision->initialized) { 423 int setup_ok = 0; 424 setup_ok = usbvision_setup(usbvision,isocMode); 425 if (setup_ok) 426 usbvision->initialized = 1; 427 else 428 errCode = -EBUSY; 429 } 430 431 if (!errCode) { 432 usbvision_begin_streaming(usbvision); 433 errCode = usbvision_init_isoc(usbvision); 434 /* device needs to be initialized before isoc transfer */ 435 usbvision_muxsel(usbvision,0); 436 usbvision->user++; 437 } 438 else { 439 if (PowerOnAtOpen) { 440 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 441 usbvision_power_off(usbvision); 442 usbvision->initialized = 0; 443 } 444 } 445 up(&usbvision->lock); 446 } 447 448 if (errCode) { 449 } 450 451 /* prepare queues */ 452 usbvision_empty_framequeues(usbvision); 453 454 PDEBUG(DBG_IO, "success"); 455 return errCode; 456} 457 458/* 459 * usbvision_v4l2_close() 460 * 461 * This is part of Video 4 Linux API. The procedure 462 * stops streaming and deallocates all buffers that were earlier 463 * allocated in usbvision_v4l2_open(). 464 * 465 */ 466static int usbvision_v4l2_close(struct inode *inode, struct file *file) 467{ 468 struct video_device *dev = video_devdata(file); 469 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 470 471 PDEBUG(DBG_IO, "close"); 472 down(&usbvision->lock); 473 474 usbvision_audio_off(usbvision); 475 usbvision_restart_isoc(usbvision); 476 usbvision_stop_isoc(usbvision); 477 478 usbvision_decompress_free(usbvision); 479 usbvision_frames_free(usbvision); 480 usbvision_scratch_free(usbvision); 481 482 usbvision->user--; 483 484 if (PowerOnAtOpen) { 485 /* power off in a little while 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 info("%s: Final disconnect", __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 */ 510static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, 511 unsigned int cmd, void *arg) 512{ 513 struct video_device *dev = video_devdata(file); 514 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 515 516 if (!USBVISION_IS_OPERATIONAL(usbvision)) 517 return -EFAULT; 518 519 switch (cmd) { 520 521#ifdef CONFIG_VIDEO_ADV_DEBUG 522 /* ioctls to allow direct acces to the NT100x registers */ 523 case VIDIOC_INT_G_REGISTER: 524 { 525 struct v4l2_register *reg = arg; 526 int errCode; 527 528 if (reg->i2c_id != 0) 529 return -EINVAL; 530 /* NT100x has a 8-bit register space */ 531 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 532 if (errCode < 0) { 533 err("%s: VIDIOC_INT_G_REGISTER failed: error %d", __FUNCTION__, errCode); 534 } 535 else { 536 reg->val=(unsigned char)errCode; 537 PDEBUG(DBG_IOCTL, "VIDIOC_INT_G_REGISTER reg=0x%02X, value=0x%02X", 538 (unsigned int)reg->reg, reg->val); 539 errCode = 0; // No error 540 } 541 return errCode; 542 } 543 case VIDIOC_INT_S_REGISTER: 544 { 545 struct v4l2_register *reg = arg; 546 int errCode; 547 548 if (reg->i2c_id != 0) 549 return -EINVAL; 550 if (!capable(CAP_SYS_ADMIN)) 551 return -EPERM; 552 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 553 if (errCode < 0) { 554 err("%s: VIDIOC_INT_S_REGISTER failed: error %d", __FUNCTION__, errCode); 555 } 556 else { 557 PDEBUG(DBG_IOCTL, "VIDIOC_INT_S_REGISTER reg=0x%02X, value=0x%02X", 558 (unsigned int)reg->reg, reg->val); 559 errCode = 0; 560 } 561 return 0; 562 } 563#endif 564 case VIDIOC_QUERYCAP: 565 { 566 struct v4l2_capability *vc=arg; 567 568 memset(vc, 0, sizeof(*vc)); 569 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 570 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 571 sizeof(vc->card)); 572 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 573 sizeof(vc->bus_info)); 574 vc->version = USBVISION_DRIVER_VERSION; 575 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 576 V4L2_CAP_AUDIO | 577 V4L2_CAP_READWRITE | 578 V4L2_CAP_STREAMING | 579 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 580 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); 581 return 0; 582 } 583 case VIDIOC_ENUMINPUT: 584 { 585 struct v4l2_input *vi = arg; 586 int chan; 587 588 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 589 return -EINVAL; 590 if (usbvision->have_tuner) { 591 chan = vi->index; 592 } 593 else { 594 chan = vi->index + 1; //skip Television string 595 } 596 switch(chan) { 597 case 0: 598 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 599 strcpy(vi->name, "White Video Input"); 600 } 601 else { 602 strcpy(vi->name, "Television"); 603 vi->type = V4L2_INPUT_TYPE_TUNER; 604 vi->audioset = 1; 605 vi->tuner = chan; 606 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; 607 } 608 break; 609 case 1: 610 vi->type = V4L2_INPUT_TYPE_CAMERA; 611 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 612 strcpy(vi->name, "Green Video Input"); 613 } 614 else { 615 strcpy(vi->name, "Composite Video Input"); 616 } 617 vi->std = V4L2_STD_PAL; 618 break; 619 case 2: 620 vi->type = V4L2_INPUT_TYPE_CAMERA; 621 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 622 strcpy(vi->name, "Yellow Video Input"); 623 } 624 else { 625 strcpy(vi->name, "S-Video Input"); 626 } 627 vi->std = V4L2_STD_PAL; 628 break; 629 case 3: 630 vi->type = V4L2_INPUT_TYPE_CAMERA; 631 strcpy(vi->name, "Red Video Input"); 632 vi->std = V4L2_STD_PAL; 633 break; 634 } 635 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", 636 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); 637 return 0; 638 } 639 case VIDIOC_ENUMSTD: 640 { 641 struct v4l2_standard *e = arg; 642 unsigned int i; 643 int ret; 644 645 i = e->index; 646 if (i >= TVNORMS) 647 return -EINVAL; 648 ret = v4l2_video_std_construct(e, tvnorms[e->index].id, 649 tvnorms[e->index].name); 650 e->index = i; 651 if (ret < 0) 652 return ret; 653 return 0; 654 } 655 case VIDIOC_G_INPUT: 656 { 657 int *input = arg; 658 *input = usbvision->ctl_input; 659 return 0; 660 } 661 case VIDIOC_S_INPUT: 662 { 663 int *input = arg; 664 if ((*input >= usbvision->video_inputs) || (*input < 0) ) 665 return -EINVAL; 666 usbvision->ctl_input = *input; 667 668 down(&usbvision->lock); 669 usbvision_muxsel(usbvision, usbvision->ctl_input); 670 usbvision_set_input(usbvision); 671 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); 672 up(&usbvision->lock); 673 return 0; 674 } 675 case VIDIOC_G_STD: 676 { 677 v4l2_std_id *id = arg; 678 679 *id = usbvision->tvnorm->id; 680 681 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); 682 return 0; 683 } 684 case VIDIOC_S_STD: 685 { 686 v4l2_std_id *id = arg; 687 unsigned int i; 688 689 for (i = 0; i < TVNORMS; i++) 690 if (*id == tvnorms[i].id) 691 break; 692 if (i == TVNORMS) 693 for (i = 0; i < TVNORMS; i++) 694 if (*id & tvnorms[i].id) 695 break; 696 if (i == TVNORMS) 697 return -EINVAL; 698 699 down(&usbvision->lock); 700 usbvision->tvnorm = &tvnorms[i]; 701 702 call_i2c_clients(usbvision, VIDIOC_S_STD, 703 &usbvision->tvnorm->id); 704 705 up(&usbvision->lock); 706 707 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); 708 return 0; 709 } 710 case VIDIOC_G_TUNER: 711 { 712 struct v4l2_tuner *vt = arg; 713 714 if (!usbvision->have_tuner || vt->index) // Only tuner 0 715 return -EINVAL; 716 strcpy(vt->name, "Television"); 717 /* Let clients fill in the remainder of this struct */ 718 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 719 720 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); 721 return 0; 722 } 723 case VIDIOC_S_TUNER: 724 { 725 struct v4l2_tuner *vt = arg; 726 727 // Only no or one tuner for now 728 if (!usbvision->have_tuner || vt->index) 729 return -EINVAL; 730 /* let clients handle this */ 731 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 732 733 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); 734 return 0; 735 } 736 case VIDIOC_G_FREQUENCY: 737 { 738 struct v4l2_frequency *freq = arg; 739 740 freq->tuner = 0; // Only one tuner 741 freq->type = V4L2_TUNER_ANALOG_TV; 742 freq->frequency = usbvision->freq; 743 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 744 return 0; 745 } 746 case VIDIOC_S_FREQUENCY: 747 { 748 struct v4l2_frequency *freq = arg; 749 750 // Only no or one tuner for now 751 if (!usbvision->have_tuner || freq->tuner) 752 return -EINVAL; 753 754 usbvision->freq = freq->frequency; 755 call_i2c_clients(usbvision, cmd, freq); 756 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 757 return 0; 758 } 759 case VIDIOC_G_AUDIO: 760 { 761 struct v4l2_audio *v = arg; 762 memset(v,0, sizeof(v)); 763 strcpy(v->name, "TV"); 764 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); 765 return 0; 766 } 767 case VIDIOC_S_AUDIO: 768 { 769 struct v4l2_audio *v = arg; 770 if(v->index) { 771 return -EINVAL; 772 } 773 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); 774 return 0; 775 } 776 case VIDIOC_QUERYCTRL: 777 { 778 struct v4l2_queryctrl *ctrl = arg; 779 int id=ctrl->id; 780 781 memset(ctrl,0,sizeof(*ctrl)); 782 ctrl->id=id; 783 784 call_i2c_clients(usbvision, cmd, arg); 785 786 if (ctrl->type) 787 return 0; 788 else 789 return -EINVAL; 790 791 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 792 } 793 case VIDIOC_G_CTRL: 794 { 795 struct v4l2_control *ctrl = arg; 796 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 797 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 798 return 0; 799 } 800 case VIDIOC_S_CTRL: 801 { 802 struct v4l2_control *ctrl = arg; 803 804 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 805 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 806 return 0; 807 } 808 case VIDIOC_REQBUFS: 809 { 810 struct v4l2_requestbuffers *vr = arg; 811 int ret; 812 813 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 814 815 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method. 816 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 817 (vr->memory != V4L2_MEMORY_MMAP)) 818 return -EINVAL; 819 820 if(usbvision->streaming == Stream_On) { 821 if ((ret = usbvision_stream_interrupt(usbvision))) 822 return ret; 823 } 824 825 usbvision_empty_framequeues(usbvision); 826 827 usbvision->curFrame = NULL; 828 829 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); 830 return 0; 831 } 832 case VIDIOC_QUERYBUF: 833 { 834 struct v4l2_buffer *vb = arg; 835 struct usbvision_frame *frame; 836 837 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called) 838 839 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 840 return -EINVAL; 841 } 842 if(vb->index>=USBVISION_NUMFRAMES) { 843 return -EINVAL; 844 } 845 // Updating the corresponding frame state 846 vb->flags = 0; 847 frame = &usbvision->frame[vb->index]; 848 if(frame->grabstate >= FrameState_Ready) 849 vb->flags |= V4L2_BUF_FLAG_QUEUED; 850 if(frame->grabstate >= FrameState_Done) 851 vb->flags |= V4L2_BUF_FLAG_DONE; 852 if(frame->grabstate == FrameState_Unused) 853 vb->flags |= V4L2_BUF_FLAG_MAPPED; 854 vb->memory = V4L2_MEMORY_MMAP; 855 856 vb->m.offset = vb->index*usbvision->max_frame_size; 857 858 vb->memory = V4L2_MEMORY_MMAP; 859 vb->field = V4L2_FIELD_NONE; 860 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel; 861 vb->timestamp = usbvision->frame[vb->index].timestamp; 862 vb->sequence = usbvision->frame[vb->index].sequence; 863 return 0; 864 } 865 case VIDIOC_QBUF: 866 { 867 struct v4l2_buffer *vb = arg; 868 struct usbvision_frame *frame; 869 unsigned long lock_flags; 870 871 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP. 872 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 873 return -EINVAL; 874 } 875 if(vb->index>=USBVISION_NUMFRAMES) { 876 return -EINVAL; 877 } 878 879 frame = &usbvision->frame[vb->index]; 880 881 if (frame->grabstate != FrameState_Unused) { 882 return -EAGAIN; 883 } 884 885 /* Mark it as ready and enqueue frame */ 886 frame->grabstate = FrameState_Ready; 887 frame->scanstate = ScanState_Scanning; 888 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 889 890 vb->flags &= ~V4L2_BUF_FLAG_DONE; 891 892 /* set v4l2_format index */ 893 frame->v4l2_format = usbvision->palette; 894 895 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 896 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 897 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 898 899 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); 900 return 0; 901 } 902 case VIDIOC_DQBUF: 903 { 904 struct v4l2_buffer *vb = arg; 905 int ret; 906 struct usbvision_frame *f; 907 unsigned long lock_flags; 908 909 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 910 return -EINVAL; 911 912 if (list_empty(&(usbvision->outqueue))) { 913 if (usbvision->streaming == Stream_Idle) 914 return -EINVAL; 915 ret = wait_event_interruptible 916 (usbvision->wait_frame, 917 !list_empty(&(usbvision->outqueue))); 918 if (ret) 919 return ret; 920 } 921 922 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 923 f = list_entry(usbvision->outqueue.next, 924 struct usbvision_frame, frame); 925 list_del(usbvision->outqueue.next); 926 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 927 928 f->grabstate = FrameState_Unused; 929 930 vb->memory = V4L2_MEMORY_MMAP; 931 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE; 932 vb->index = f->index; 933 vb->sequence = f->sequence; 934 vb->timestamp = f->timestamp; 935 vb->field = V4L2_FIELD_NONE; 936 vb->bytesused = f->scanlength; 937 938 return 0; 939 } 940 case VIDIOC_STREAMON: 941 { 942 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 943 944 usbvision->streaming = Stream_On; 945 946 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 947 948 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); 949 950 return 0; 951 } 952 case VIDIOC_STREAMOFF: 953 { 954 int *type = arg; 955 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 956 957 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 958 return -EINVAL; 959 960 if(usbvision->streaming == Stream_On) { 961 usbvision_stream_interrupt(usbvision); 962 // Stop all video streamings 963 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 964 } 965 usbvision_empty_framequeues(usbvision); 966 967 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); 968 return 0; 969 } 970 case VIDIOC_ENUM_FMT: 971 { 972 struct v4l2_fmtdesc *vfd = arg; 973 974 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 975 return -EINVAL; 976 } 977 vfd->flags = 0; 978 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 979 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 980 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 981 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 982 return 0; 983 } 984 case VIDIOC_G_FMT: 985 { 986 struct v4l2_format *vf = arg; 987 988 switch (vf->type) { 989 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 990 { 991 vf->fmt.pix.width = usbvision->curwidth; 992 vf->fmt.pix.height = usbvision->curheight; 993 vf->fmt.pix.pixelformat = usbvision->palette.format; 994 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel; 995 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 996 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 997 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 998 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", 999 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1000 return 0; 1001 } 1002 default: 1003 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); 1004 return -EINVAL; 1005 } 1006 return 0; 1007 } 1008 case VIDIOC_TRY_FMT: 1009 case VIDIOC_S_FMT: 1010 { 1011 struct v4l2_format *vf = arg; 1012 int formatIdx,ret; 1013 1014 switch(vf->type) { 1015 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 1016 { 1017 /* Find requested format in available ones */ 1018 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 1019 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { 1020 usbvision->palette = usbvision_v4l2_format[formatIdx]; 1021 break; 1022 } 1023 } 1024 /* robustness */ 1025 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 1026 return -EINVAL; 1027 } 1028 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 1029 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 1030 1031 vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel; 1032 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 1033 1034 if(cmd == VIDIOC_TRY_FMT) { 1035 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", 1036 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1037 return 0; 1038 } 1039 1040 /* stop io in case it is already in progress */ 1041 if(usbvision->streaming == Stream_On) { 1042 if ((ret = usbvision_stream_interrupt(usbvision))) 1043 return ret; 1044 } 1045 usbvision_empty_framequeues(usbvision); 1046 1047 usbvision->curFrame = NULL; 1048 1049 // by now we are committed to the new data... 1050 down(&usbvision->lock); 1051 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1052 up(&usbvision->lock); 1053 1054 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", 1055 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1056 return 0; 1057 } 1058 default: 1059 return -EINVAL; 1060 } 1061 } 1062 default: 1063 return -ENOIOCTLCMD; 1064 } 1065 return 0; 1066} 1067 1068static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, 1069 unsigned int cmd, unsigned long arg) 1070{ 1071 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); 1072} 1073 1074 1075static ssize_t usbvision_v4l2_read(struct file *file, char *buf, 1076 size_t count, loff_t *ppos) 1077{ 1078 struct video_device *dev = video_devdata(file); 1079 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1080 int noblock = file->f_flags & O_NONBLOCK; 1081 unsigned long lock_flags; 1082 1083 int frmx = -1; 1084 int ret,i; 1085 struct usbvision_frame *frame; 1086 1087 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock); 1088 1089 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1090 return -EFAULT; 1091 1092 /* no stream is running, make it running ! */ 1093 usbvision->streaming = Stream_On; 1094 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1095 1096 /* First, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ 1097 for(i=0;i<USBVISION_NUMFRAMES;i++) { 1098 frame = &usbvision->frame[i]; 1099 if(frame->grabstate == FrameState_Unused) { 1100 /* Mark it as ready and enqueue frame */ 1101 frame->grabstate = FrameState_Ready; 1102 frame->scanstate = ScanState_Scanning; 1103 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 1104 1105 /* set v4l2_format index */ 1106 frame->v4l2_format = usbvision->palette; 1107 1108 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1109 list_add_tail(&frame->frame, &usbvision->inqueue); 1110 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1111 } 1112 } 1113 1114 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1115 if (list_empty(&(usbvision->outqueue))) { 1116 if(noblock) 1117 return -EAGAIN; 1118 1119 ret = wait_event_interruptible 1120 (usbvision->wait_frame, 1121 !list_empty(&(usbvision->outqueue))); 1122 if (ret) 1123 return ret; 1124 } 1125 1126 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1127 frame = list_entry(usbvision->outqueue.next, 1128 struct usbvision_frame, frame); 1129 list_del(usbvision->outqueue.next); 1130 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1131 1132 /* An error returns an empty frame */ 1133 if (frame->grabstate == FrameState_Error) { 1134 frame->bytes_read = 0; 1135 return 0; 1136 } 1137 1138 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, 1139 frame->index, frame->bytes_read, frame->scanlength); 1140 1141 /* copy bytes to user space; we allow for partials reads */ 1142 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1143 count = frame->scanlength - frame->bytes_read; 1144 1145 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1146 return -EFAULT; 1147 } 1148 1149 frame->bytes_read += count; 1150 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__, 1151 (unsigned long)count, frame->bytes_read); 1152 1153 // For now, forget the frame if it has not been read in one shot. 1154/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1155 frame->bytes_read = 0; 1156 1157 /* Mark it as available to be used again. */ 1158 usbvision->frame[frmx].grabstate = FrameState_Unused; 1159/* } */ 1160 1161 return count; 1162} 1163 1164static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1165{ 1166 unsigned long size = vma->vm_end - vma->vm_start, 1167 start = vma->vm_start; 1168 void *pos; 1169 u32 i; 1170 1171 struct video_device *dev = video_devdata(file); 1172 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1173 1174 down(&usbvision->lock); 1175 1176 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1177 up(&usbvision->lock); 1178 return -EFAULT; 1179 } 1180 1181 if (!(vma->vm_flags & VM_WRITE) || 1182 size != PAGE_ALIGN(usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel)) { 1183 up(&usbvision->lock); 1184 return -EINVAL; 1185 } 1186 1187 for (i = 0; i < USBVISION_NUMFRAMES; i++) { 1188 if (((usbvision->max_frame_size*i) >> PAGE_SHIFT) == vma->vm_pgoff) 1189 break; 1190 } 1191 if (i == USBVISION_NUMFRAMES) { 1192 PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range"); 1193 up(&usbvision->lock); 1194 return -EINVAL; 1195 } 1196 1197 /* VM_IO is eventually going to replace PageReserved altogether */ 1198 vma->vm_flags |= VM_IO; 1199 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1200 1201 pos = usbvision->frame[i].data; 1202 while (size > 0) { 1203 1204 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1205 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1206 up(&usbvision->lock); 1207 return -EAGAIN; 1208 } 1209 start += PAGE_SIZE; 1210 pos += PAGE_SIZE; 1211 size -= PAGE_SIZE; 1212 } 1213 1214 up(&usbvision->lock); 1215 return 0; 1216} 1217 1218 1219/* 1220 * Here comes the stuff for radio on usbvision based devices 1221 * 1222 */ 1223static int usbvision_radio_open(struct inode *inode, struct file *file) 1224{ 1225 struct video_device *dev = video_devdata(file); 1226 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1227 struct v4l2_frequency freq; 1228 int errCode = 0; 1229 1230 PDEBUG(DBG_IO, "%s:", __FUNCTION__); 1231 1232 down(&usbvision->lock); 1233 1234 if (usbvision->user) { 1235 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__); 1236 errCode = -EBUSY; 1237 } 1238 else { 1239 if(PowerOnAtOpen) { 1240 usbvision_reset_powerOffTimer(usbvision); 1241 if (usbvision->power == 0) { 1242 usbvision_power_on(usbvision); 1243 usbvision_init_i2c(usbvision); 1244 } 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_usb_del_bus(&usbvision->i2c_adap); 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 usbvision_audio_off(usbvision); 1279 usbvision->radio=0; 1280 usbvision->user--; 1281 1282 if (PowerOnAtOpen) { 1283 usbvision_set_powerOffTimer(usbvision); 1284 usbvision->initialized = 0; 1285 } 1286 1287 up(&usbvision->lock); 1288 1289 if (usbvision->remove_pending) { 1290 info("%s: Final disconnect", __FUNCTION__); 1291 usbvision_release(usbvision); 1292 } 1293 1294 1295 PDEBUG(DBG_IO, "success"); 1296 1297 return errCode; 1298} 1299 1300static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, 1301 unsigned int cmd, void *arg) 1302{ 1303 struct video_device *dev = video_devdata(file); 1304 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1305 1306 if (!USBVISION_IS_OPERATIONAL(usbvision)) 1307 return -EIO; 1308 1309 switch (cmd) { 1310 case VIDIOC_QUERYCAP: 1311 { 1312 struct v4l2_capability *vc=arg; 1313 1314 memset(vc, 0, sizeof(*vc)); 1315 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 1316 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 1317 sizeof(vc->card)); 1318 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 1319 sizeof(vc->bus_info)); 1320 vc->version = USBVISION_DRIVER_VERSION; 1321 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 1322 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); 1323 return 0; 1324 } 1325 case VIDIOC_QUERYCTRL: 1326 { 1327 struct v4l2_queryctrl *ctrl = arg; 1328 int id=ctrl->id; 1329 1330 memset(ctrl,0,sizeof(*ctrl)); 1331 ctrl->id=id; 1332 1333 call_i2c_clients(usbvision, cmd, arg); 1334 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 1335 1336 if (ctrl->type) 1337 return 0; 1338 else 1339 return -EINVAL; 1340 1341 } 1342 case VIDIOC_G_CTRL: 1343 { 1344 struct v4l2_control *ctrl = arg; 1345 1346 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 1347 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1348 return 0; 1349 } 1350 case VIDIOC_S_CTRL: 1351 { 1352 struct v4l2_control *ctrl = arg; 1353 1354 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 1355 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1356 return 0; 1357 } 1358 case VIDIOC_G_TUNER: 1359 { 1360 struct v4l2_tuner *t = arg; 1361 1362 if (t->index > 0) 1363 return -EINVAL; 1364 1365 memset(t,0,sizeof(*t)); 1366 strcpy(t->name, "Radio"); 1367 t->type = V4L2_TUNER_RADIO; 1368 1369 /* Let clients fill in the remainder of this struct */ 1370 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); 1371 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); 1372 return 0; 1373 } 1374 case VIDIOC_S_TUNER: 1375 { 1376 struct v4l2_tuner *vt = arg; 1377 1378 // Only no or one tuner for now 1379 if (!usbvision->have_tuner || vt->index) 1380 return -EINVAL; 1381 /* let clients handle this */ 1382 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 1383 1384 PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); 1385 return 0; 1386 } 1387 case VIDIOC_G_AUDIO: 1388 { 1389 struct v4l2_audio *a = arg; 1390 1391 memset(a,0,sizeof(*a)); 1392 strcpy(a->name,"Radio"); 1393 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); 1394 return 0; 1395 } 1396 case VIDIOC_S_AUDIO: 1397 case VIDIOC_S_INPUT: 1398 case VIDIOC_S_STD: 1399 return 0; 1400 1401 case VIDIOC_G_FREQUENCY: 1402 { 1403 struct v4l2_frequency *f = arg; 1404 1405 memset(f,0,sizeof(*f)); 1406 1407 f->type = V4L2_TUNER_RADIO; 1408 f->frequency = usbvision->freq; 1409 call_i2c_clients(usbvision, cmd, f); 1410 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1411 1412 return 0; 1413 } 1414 case VIDIOC_S_FREQUENCY: 1415 { 1416 struct v4l2_frequency *f = arg; 1417 1418 if (f->tuner != 0) 1419 return -EINVAL; 1420 usbvision->freq = f->frequency; 1421 call_i2c_clients(usbvision, cmd, f); 1422 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1423 1424 return 0; 1425 } 1426 default: 1427 { 1428 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); 1429 return -ENOIOCTLCMD; 1430 } 1431 } 1432 return 0; 1433} 1434 1435 1436static int usbvision_radio_ioctl(struct inode *inode, struct file *file, 1437 unsigned int cmd, unsigned long arg) 1438{ 1439 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); 1440} 1441 1442 1443/* 1444 * Here comes the stuff for vbi on usbvision based devices 1445 * 1446 */ 1447static int usbvision_vbi_open(struct inode *inode, struct file *file) 1448{ 1449 /* TODO */ 1450 return -EINVAL; 1451 1452} 1453 1454static int usbvision_vbi_close(struct inode *inode, struct file *file) 1455{ 1456 /* TODO */ 1457 return -EINVAL; 1458} 1459 1460static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, 1461 unsigned int cmd, void *arg) 1462{ 1463 /* TODO */ 1464 return -EINVAL; 1465} 1466 1467static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1468 unsigned int cmd, unsigned long arg) 1469{ 1470 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); 1471} 1472 1473 1474// 1475// Video registration stuff 1476// 1477 1478// Video template 1479static struct file_operations usbvision_fops = { 1480 .owner = THIS_MODULE, 1481 .open = usbvision_v4l2_open, 1482 .release = usbvision_v4l2_close, 1483 .read = usbvision_v4l2_read, 1484 .mmap = usbvision_v4l2_mmap, 1485 .ioctl = usbvision_v4l2_ioctl, 1486 .llseek = no_llseek, 1487}; 1488static struct video_device usbvision_video_template = { 1489 .owner = THIS_MODULE, 1490 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, 1491 .hardware = VID_HARDWARE_USBVISION, 1492 .fops = &usbvision_fops, 1493 .name = "usbvision-video", 1494 .release = video_device_release, 1495 .minor = -1, 1496}; 1497 1498 1499// Radio template 1500static struct file_operations usbvision_radio_fops = { 1501 .owner = THIS_MODULE, 1502 .open = usbvision_radio_open, 1503 .release = usbvision_radio_close, 1504 .ioctl = usbvision_radio_ioctl, 1505 .llseek = no_llseek, 1506}; 1507 1508static struct video_device usbvision_radio_template= 1509{ 1510 .owner = THIS_MODULE, 1511 .type = VID_TYPE_TUNER, 1512 .hardware = VID_HARDWARE_USBVISION, 1513 .fops = &usbvision_radio_fops, 1514 .release = video_device_release, 1515 .name = "usbvision-radio", 1516 .minor = -1, 1517}; 1518 1519 1520// vbi template 1521static struct file_operations usbvision_vbi_fops = { 1522 .owner = THIS_MODULE, 1523 .open = usbvision_vbi_open, 1524 .release = usbvision_vbi_close, 1525 .ioctl = usbvision_vbi_ioctl, 1526 .llseek = no_llseek, 1527}; 1528 1529static struct video_device usbvision_vbi_template= 1530{ 1531 .owner = THIS_MODULE, 1532 .type = VID_TYPE_TUNER, 1533 .hardware = VID_HARDWARE_USBVISION, 1534 .fops = &usbvision_vbi_fops, 1535 .release = video_device_release, 1536 .name = "usbvision-vbi", 1537 .minor = -1, 1538}; 1539 1540 1541static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1542 struct video_device *vdev_template, 1543 char *name) 1544{ 1545 struct usb_device *usb_dev = usbvision->dev; 1546 struct video_device *vdev; 1547 1548 if (usb_dev == NULL) { 1549 err("%s: usbvision->dev is not set", __FUNCTION__); 1550 return NULL; 1551 } 1552 1553 vdev = video_device_alloc(); 1554 if (NULL == vdev) { 1555 return NULL; 1556 } 1557 *vdev = *vdev_template; 1558// vdev->minor = -1; 1559 vdev->dev = &usb_dev->dev; 1560 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1561 video_set_drvdata(vdev, usbvision); 1562 return vdev; 1563} 1564 1565// unregister video4linux devices 1566static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1567{ 1568 // vbi Device: 1569 if (usbvision->vbi) { 1570 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); 1571 if (usbvision->vbi->minor != -1) { 1572 video_unregister_device(usbvision->vbi); 1573 } 1574 else { 1575 video_device_release(usbvision->vbi); 1576 } 1577 usbvision->vbi = NULL; 1578 } 1579 1580 // Radio Device: 1581 if (usbvision->rdev) { 1582 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); 1583 if (usbvision->rdev->minor != -1) { 1584 video_unregister_device(usbvision->rdev); 1585 } 1586 else { 1587 video_device_release(usbvision->rdev); 1588 } 1589 usbvision->rdev = NULL; 1590 } 1591 1592 // Video Device: 1593 if (usbvision->vdev) { 1594 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); 1595 if (usbvision->vdev->minor != -1) { 1596 video_unregister_device(usbvision->vdev); 1597 } 1598 else { 1599 video_device_release(usbvision->vdev); 1600 } 1601 usbvision->vdev = NULL; 1602 } 1603} 1604 1605// register video4linux devices 1606static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1607{ 1608 // Video Device: 1609 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video"); 1610 if (usbvision->vdev == NULL) { 1611 goto err_exit; 1612 } 1613 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) { 1614 goto err_exit; 1615 } 1616 info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f); 1617 1618 // Radio Device: 1619 if (usbvision_device_data[usbvision->DevModel].Radio) { 1620 // usbvision has radio 1621 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio"); 1622 if (usbvision->rdev == NULL) { 1623 goto err_exit; 1624 } 1625 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) { 1626 goto err_exit; 1627 } 1628 info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f); 1629 } 1630 // vbi Device: 1631 if (usbvision_device_data[usbvision->DevModel].vbi) { 1632 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); 1633 if (usbvision->vdev == NULL) { 1634 goto err_exit; 1635 } 1636 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { 1637 goto err_exit; 1638 } 1639 info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f); 1640 } 1641 // all done 1642 return 0; 1643 1644 err_exit: 1645 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1646 usbvision_unregister_video(usbvision); 1647 return -1; 1648} 1649 1650/* 1651 * usbvision_alloc() 1652 * 1653 * This code allocates the struct usb_usbvision. It is filled with default values. 1654 * 1655 * Returns NULL on error, a pointer to usb_usbvision else. 1656 * 1657 */ 1658static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1659{ 1660 struct usb_usbvision *usbvision; 1661 1662 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { 1663 goto err_exit; 1664 } 1665 1666 usbvision->dev = dev; 1667 1668 init_MUTEX(&usbvision->lock); /* to 1 == available */ 1669 1670 // prepare control urb for control messages during interrupts 1671 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1672 if (usbvision->ctrlUrb == NULL) { 1673 goto err_exit; 1674 } 1675 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1676 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ 1677 1678 usbvision_init_powerOffTimer(usbvision); 1679 1680 return usbvision; 1681 1682err_exit: 1683 if (usbvision && usbvision->ctrlUrb) { 1684 usb_free_urb(usbvision->ctrlUrb); 1685 } 1686 if (usbvision) { 1687 kfree(usbvision); 1688 } 1689 return NULL; 1690} 1691 1692/* 1693 * usbvision_release() 1694 * 1695 * This code does final release of struct usb_usbvision. This happens 1696 * after the device is disconnected -and- all clients closed their files. 1697 * 1698 */ 1699static void usbvision_release(struct usb_usbvision *usbvision) 1700{ 1701 PDEBUG(DBG_PROBE, ""); 1702 1703 down(&usbvision->lock); 1704 1705 usbvision_reset_powerOffTimer(usbvision); 1706 1707 usbvision->initialized = 0; 1708 1709 up(&usbvision->lock); 1710 1711 usbvision_remove_sysfs(usbvision->vdev); 1712 usbvision_unregister_video(usbvision); 1713 1714 if (usbvision->ctrlUrb) { 1715 usb_free_urb(usbvision->ctrlUrb); 1716 } 1717 1718 kfree(usbvision); 1719 1720 PDEBUG(DBG_PROBE, "success"); 1721} 1722 1723 1724/******************************** usb interface *****************************************/ 1725 1726static void usbvision_configure_video(struct usb_usbvision *usbvision) 1727{ 1728 int model,i; 1729 1730 if (usbvision == NULL) 1731 return; 1732 1733 model = usbvision->DevModel; 1734 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1735 1736 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) { 1737 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff; 1738 } else { 1739 usbvision->Vin_Reg2_Preset = 0; 1740 } 1741 1742 for (i = 0; i < TVNORMS; i++) 1743 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) 1744 break; 1745 if (i == TVNORMS) 1746 i = 0; 1747 usbvision->tvnorm = &tvnorms[i]; /* set default norm */ 1748 1749 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1750 usbvision->ctl_input = 0; 1751 1752 /* This should be here to make i2c clients to be able to register */ 1753 usbvision_audio_off(usbvision); //first switch off audio 1754 if (!PowerOnAtOpen) { 1755 usbvision_power_on(usbvision); //and then power up the noisy tuner 1756 usbvision_init_i2c(usbvision); 1757 } 1758} 1759 1760/* 1761 * usbvision_probe() 1762 * 1763 * This procedure queries device descriptor and accepts the interface 1764 * if it looks like USBVISION video device 1765 * 1766 */ 1767static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid) 1768{ 1769 struct usb_device *dev = interface_to_usbdev(intf); 1770 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1771 const struct usb_host_interface *interface; 1772 struct usb_usbvision *usbvision = NULL; 1773 const struct usb_endpoint_descriptor *endpoint; 1774 int model; 1775 1776 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1777 dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum); 1778 /* Is it an USBVISION video dev? */ 1779 model = 0; 1780 for(model = 0; usbvision_device_data[model].idVendor; model++) { 1781 if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) { 1782 continue; 1783 } 1784 if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) { 1785 continue; 1786 } 1787 1788 info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString); 1789 break; 1790 } 1791 1792 if (usbvision_device_data[model].idVendor == 0) { 1793 return -ENODEV; //no matching device 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 attribures %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 usb_get_dev(dev); 1813 1814 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1815 err("%s: couldn't allocate USBVision struct", __FUNCTION__); 1816 return -ENOMEM; 1817 } 1818 if (dev->descriptor.bNumConfigurations > 1) { 1819 usbvision->bridgeType = BRIDGE_NT1004; 1820 } 1821 else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") { 1822 usbvision->bridgeType = BRIDGE_NT1005; 1823 } 1824 else { 1825 usbvision->bridgeType = BRIDGE_NT1003; 1826 } 1827 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1828 1829 down(&usbvision->lock); 1830 1831 usbvision->nr = usbvision_nr++; 1832 1833 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1834 if (usbvision->have_tuner) { 1835 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1836 } 1837 1838 usbvision->tuner_addr = ADDR_UNSET; 1839 1840 usbvision->DevModel = model; 1841 usbvision->remove_pending = 0; 1842 usbvision->iface = ifnum; 1843 usbvision->ifaceAltInactive = 0; 1844 usbvision->ifaceAltActive = 1; 1845 usbvision->video_endp = endpoint->bEndpointAddress; 1846 usbvision->isocPacketSize = 0; 1847 usbvision->usb_bandwidth = 0; 1848 usbvision->user = 0; 1849 usbvision->streaming = Stream_Off; 1850 usbvision_register_video(usbvision); 1851 usbvision_configure_video(usbvision); 1852 up(&usbvision->lock); 1853 1854 1855 usb_set_intfdata (intf, usbvision); 1856 usbvision_create_sysfs(usbvision->vdev); 1857 1858 PDEBUG(DBG_PROBE, "success"); 1859 return 0; 1860} 1861 1862 1863/* 1864 * usbvision_disconnect() 1865 * 1866 * This procedure stops all driver activity, deallocates interface-private 1867 * structure (pointed by 'ptr') and after that driver should be removable 1868 * with no ill consequences. 1869 * 1870 */ 1871static void __devexit usbvision_disconnect(struct usb_interface *intf) 1872{ 1873 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1874 1875 PDEBUG(DBG_PROBE, ""); 1876 1877 if (usbvision == NULL) { 1878 err("%s: usb_get_intfdata() failed", __FUNCTION__); 1879 return; 1880 } 1881 usb_set_intfdata (intf, NULL); 1882 1883 down(&usbvision->lock); 1884 1885 // At this time we ask to cancel outstanding URBs 1886 usbvision_stop_isoc(usbvision); 1887 1888 if (usbvision->power) { 1889 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 1890 usbvision_power_off(usbvision); 1891 } 1892 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1893 1894 usb_put_dev(usbvision->dev); 1895 usbvision->dev = NULL; // USB device is no more 1896 1897 up(&usbvision->lock); 1898 1899 if (usbvision->user) { 1900 info("%s: In use, disconnect pending", __FUNCTION__); 1901 wake_up_interruptible(&usbvision->wait_frame); 1902 wake_up_interruptible(&usbvision->wait_stream); 1903 } 1904 else { 1905 usbvision_release(usbvision); 1906 } 1907 1908 PDEBUG(DBG_PROBE, "success"); 1909 1910} 1911 1912static struct usb_driver usbvision_driver = { 1913 .name = "usbvision", 1914 .id_table = usbvision_table, 1915 .probe = usbvision_probe, 1916 .disconnect = usbvision_disconnect 1917}; 1918 1919/* 1920 * customdevice_process() 1921 * 1922 * This procedure preprocesses CustomDevice parameter if any 1923 * 1924 */ 1925static void customdevice_process(void) 1926{ 1927 usbvision_device_data[0]=usbvision_device_data[1]; 1928 usbvision_table[0]=usbvision_table[1]; 1929 1930 if(CustomDevice) 1931 { 1932 char *parse=CustomDevice; 1933 1934 PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice); 1935 1936 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1" 1937 usbvision_device_data[0].idVendor; 1938 usbvision_device_data[0].idProduct; 1939 usbvision_device_data[0].Interface; 1940 usbvision_device_data[0].Codec; 1941 usbvision_device_data[0].VideoChannels; 1942 usbvision_device_data[0].VideoNorm; 1943 usbvision_device_data[0].AudioChannels; 1944 usbvision_device_data[0].Radio; 1945 usbvision_device_data[0].Tuner; 1946 usbvision_device_data[0].TunerType; 1947 usbvision_device_data[0].Vin_Reg1; 1948 usbvision_device_data[0].Vin_Reg2; 1949 usbvision_device_data[0].X_Offset; 1950 usbvision_device_data[0].Y_Offset; 1951 usbvision_device_data[0].Dvi_yuv; 1952 usbvision_device_data[0].ModelString; 1953 */ 1954 1955 rmspace(parse); 1956 usbvision_device_data[0].ModelString="USBVISION Custom Device"; 1957 1958 parse+=2; 1959 sscanf(parse,"%x",&usbvision_device_data[0].idVendor); 1960 goto2next(parse); 1961 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor); 1962 parse+=2; 1963 sscanf(parse,"%x",&usbvision_device_data[0].idProduct); 1964 goto2next(parse); 1965 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct); 1966 sscanf(parse,"%d",&usbvision_device_data[0].Interface); 1967 goto2next(parse); 1968 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface); 1969 sscanf(parse,"%d",&usbvision_device_data[0].Codec); 1970 goto2next(parse); 1971 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec); 1972 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels); 1973 goto2next(parse); 1974 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels); 1975 1976 switch(*parse) 1977 { 1978 case 'P': 1979 PDEBUG(DBG_PROBE, "VideoNorm=PAL"); 1980 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; 1981 break; 1982 1983 case 'S': 1984 PDEBUG(DBG_PROBE, "VideoNorm=SECAM"); 1985 usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM; 1986 break; 1987 1988 case 'N': 1989 PDEBUG(DBG_PROBE, "VideoNorm=NTSC"); 1990 usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC; 1991 break; 1992 1993 default: 1994 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)"); 1995 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; 1996 break; 1997 } 1998 goto2next(parse); 1999 2000 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels); 2001 goto2next(parse); 2002 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels); 2003 sscanf(parse,"%d",&usbvision_device_data[0].Radio); 2004 goto2next(parse); 2005 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio); 2006 sscanf(parse,"%d",&usbvision_device_data[0].Tuner); 2007 goto2next(parse); 2008 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner); 2009 sscanf(parse,"%d",&usbvision_device_data[0].TunerType); 2010 goto2next(parse); 2011 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType); 2012 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1); 2013 goto2next(parse); 2014 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1); 2015 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2); 2016 goto2next(parse); 2017 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2); 2018 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset); 2019 goto2next(parse); 2020 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset); 2021 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset); 2022 goto2next(parse); 2023 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset); 2024 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv); 2025 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv); 2026 2027 //add to usbvision_table also 2028 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE; 2029 usbvision_table[0].idVendor=usbvision_device_data[0].idVendor; 2030 usbvision_table[0].idProduct=usbvision_device_data[0].idProduct; 2031 2032 } 2033} 2034 2035 2036 2037/* 2038 * usbvision_init() 2039 * 2040 * This code is run to initialize the driver. 2041 * 2042 */ 2043static int __init usbvision_init(void) 2044{ 2045 int errCode; 2046 2047 PDEBUG(DBG_PROBE, ""); 2048 2049 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); 2050 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 2051 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 2052 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 2053 2054 /* disable planar mode support unless compression enabled */ 2055 if (isocMode != ISOC_MODE_COMPRESS ) { 2056 // FIXME : not the right way to set supported flag 2057 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 2058 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 2059 } 2060 2061 customdevice_process(); 2062 2063 errCode = usb_register(&usbvision_driver); 2064 2065 if (errCode == 0) { 2066 info(DRIVER_DESC " : " USBVISION_VERSION_STRING); 2067 PDEBUG(DBG_PROBE, "success"); 2068 } 2069 return errCode; 2070} 2071 2072static void __exit usbvision_exit(void) 2073{ 2074 PDEBUG(DBG_PROBE, ""); 2075 2076 usb_deregister(&usbvision_driver); 2077 PDEBUG(DBG_PROBE, "success"); 2078} 2079 2080module_init(usbvision_init); 2081module_exit(usbvision_exit); 2082 2083/* 2084 * Overrides for Emacs so that we follow Linus's tabbing style. 2085 * --------------------------------------------------------------------------- 2086 * Local variables: 2087 * c-basic-offset: 8 2088 * End: 2089 */ 2090