usbvision-video.c revision f3d092b84a855c44914fea0648695bef7d751266
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/smp_lock.h> 56#include <linux/videodev.h> 57#include <linux/vmalloc.h> 58#include <linux/module.h> 59#include <linux/init.h> 60#include <linux/spinlock.h> 61#include <asm/io.h> 62#include <linux/videodev2.h> 63#include <linux/video_decoder.h> 64#include <linux/i2c.h> 65 66#include <media/saa7115.h> 67#include <media/v4l2-common.h> 68#include <media/tuner.h> 69#include <media/audiochip.h> 70 71#include <linux/moduleparam.h> 72#include <linux/workqueue.h> 73 74#ifdef CONFIG_KMOD 75#include <linux/kmod.h> 76#endif 77 78#include "usbvision.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 153static char *CustomDevice=NULL; // Set as nothing.... 154 155// Grab parameters for the device driver 156 157#if defined(module_param) // Showing parameters under SYSFS 158module_param(isocMode, int, 0444); 159module_param(video_debug, int, 0444); 160module_param(PowerOnAtOpen, int, 0444); 161module_param(video_nr, int, 0444); 162module_param(radio_nr, int, 0444); 163module_param(vbi_nr, int, 0444); 164module_param(CustomDevice, charp, 0444); 165#else // Old Style 166MODULE_PARAM(isocMode, "i"); 167MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver 168MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive 169MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup 170MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently. 171MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...) 172MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...) 173MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...) 174MODULE_PARM(CustomDevice, "s"); // .... CustomDevice 175#endif 176 177MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); 178MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); 179MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); 180MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); 181MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); 182MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); 183MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null"); 184 185 186// Misc stuff 187MODULE_AUTHOR(DRIVER_AUTHOR); 188MODULE_DESCRIPTION(DRIVER_DESC); 189MODULE_LICENSE(DRIVER_LICENSE); 190MODULE_VERSION(USBVISION_VERSION_STRING); 191MODULE_ALIAS(DRIVER_ALIAS); 192 193 194/****************************************************************************************/ 195/* SYSFS Code - Copied from the stv680.c usb module. */ 196/* Device information is located at /sys/class/video4linux/video0 */ 197/* Device parameters information is located at /sys/module/usbvision */ 198/* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */ 199/****************************************************************************************/ 200 201 202#define YES_NO(x) ((x) ? "Yes" : "No") 203 204static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd) 205{ 206 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 207 return video_get_drvdata(vdev); 208} 209 210static ssize_t show_version(struct class_device *cd, char *buf) 211{ 212 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); 213} 214static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL); 215 216static ssize_t show_model(struct class_device *cd, char *buf) 217{ 218 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 219 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 220 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString); 221} 222static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); 223 224static ssize_t show_hue(struct class_device *cd, char *buf) 225{ 226 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 227 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 228 struct v4l2_control ctrl; 229 ctrl.id = V4L2_CID_HUE; 230 ctrl.value = 0; 231 if(usbvision->user) 232 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 233 return sprintf(buf, "%d\n", ctrl.value); 234} 235static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); 236 237static ssize_t show_contrast(struct class_device *cd, char *buf) 238{ 239 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 240 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 241 struct v4l2_control ctrl; 242 ctrl.id = V4L2_CID_CONTRAST; 243 ctrl.value = 0; 244 if(usbvision->user) 245 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 246 return sprintf(buf, "%d\n", ctrl.value); 247} 248static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); 249 250static ssize_t show_brightness(struct class_device *cd, char *buf) 251{ 252 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 253 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 254 struct v4l2_control ctrl; 255 ctrl.id = V4L2_CID_BRIGHTNESS; 256 ctrl.value = 0; 257 if(usbvision->user) 258 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 259 return sprintf(buf, "%d\n", ctrl.value); 260} 261static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); 262 263static ssize_t show_saturation(struct class_device *cd, char *buf) 264{ 265 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 266 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 267 struct v4l2_control ctrl; 268 ctrl.id = V4L2_CID_SATURATION; 269 ctrl.value = 0; 270 if(usbvision->user) 271 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 272 return sprintf(buf, "%d\n", ctrl.value); 273} 274static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); 275 276static ssize_t show_streaming(struct class_device *cd, char *buf) 277{ 278 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 279 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 280 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0)); 281} 282static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); 283 284static ssize_t show_compression(struct class_device *cd, char *buf) 285{ 286 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 287 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 288 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); 289} 290static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); 291 292static ssize_t show_device_bridge(struct class_device *cd, char *buf) 293{ 294 struct video_device *vdev = container_of(cd, struct video_device, class_dev); 295 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 296 return sprintf(buf, "%d\n", usbvision->bridgeType); 297} 298static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); 299 300static void usbvision_create_sysfs(struct video_device *vdev) 301{ 302 int res; 303 if (!vdev) 304 return; 305 do { 306 res=class_device_create_file(&vdev->class_dev, 307 &class_device_attr_version); 308 if (res<0) 309 break; 310 res=class_device_create_file(&vdev->class_dev, 311 &class_device_attr_model); 312 if (res<0) 313 break; 314 res=class_device_create_file(&vdev->class_dev, 315 &class_device_attr_hue); 316 if (res<0) 317 break; 318 res=class_device_create_file(&vdev->class_dev, 319 &class_device_attr_contrast); 320 if (res<0) 321 break; 322 res=class_device_create_file(&vdev->class_dev, 323 &class_device_attr_brightness); 324 if (res<0) 325 break; 326 res=class_device_create_file(&vdev->class_dev, 327 &class_device_attr_saturation); 328 if (res<0) 329 break; 330 res=class_device_create_file(&vdev->class_dev, 331 &class_device_attr_streaming); 332 if (res<0) 333 break; 334 res=class_device_create_file(&vdev->class_dev, 335 &class_device_attr_compression); 336 if (res<0) 337 break; 338 res=class_device_create_file(&vdev->class_dev, 339 &class_device_attr_bridge); 340 if (res>=0) 341 return; 342 } while (0); 343 344 err("%s error: %d\n", __FUNCTION__, res); 345} 346 347static void usbvision_remove_sysfs(struct video_device *vdev) 348{ 349 if (vdev) { 350 class_device_remove_file(&vdev->class_dev, 351 &class_device_attr_version); 352 class_device_remove_file(&vdev->class_dev, 353 &class_device_attr_model); 354 class_device_remove_file(&vdev->class_dev, 355 &class_device_attr_hue); 356 class_device_remove_file(&vdev->class_dev, 357 &class_device_attr_contrast); 358 class_device_remove_file(&vdev->class_dev, 359 &class_device_attr_brightness); 360 class_device_remove_file(&vdev->class_dev, 361 &class_device_attr_saturation); 362 class_device_remove_file(&vdev->class_dev, 363 &class_device_attr_streaming); 364 class_device_remove_file(&vdev->class_dev, 365 &class_device_attr_compression); 366 class_device_remove_file(&vdev->class_dev, 367 &class_device_attr_bridge); 368 } 369} 370 371 372/* 373 * usbvision_open() 374 * 375 * This is part of Video 4 Linux API. The driver can be opened by one 376 * client only (checks internal counter 'usbvision->user'). The procedure 377 * then allocates buffers needed for video processing. 378 * 379 */ 380static int usbvision_v4l2_open(struct inode *inode, struct file *file) 381{ 382 struct video_device *dev = video_devdata(file); 383 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 384 int errCode = 0; 385 386 PDEBUG(DBG_IO, "open"); 387 388 389 usbvision_reset_powerOffTimer(usbvision); 390 391 if (usbvision->user) 392 errCode = -EBUSY; 393 else { 394 /* Allocate memory for the scratch ring buffer */ 395 errCode = usbvision_scratch_alloc(usbvision); 396 if (isocMode==ISOC_MODE_COMPRESS) { 397 /* Allocate intermediate decompression buffers only if needed */ 398 errCode = usbvision_decompress_alloc(usbvision); 399 } 400 if (errCode) { 401 /* Deallocate all buffers if trouble */ 402 usbvision_scratch_free(usbvision); 403 usbvision_decompress_free(usbvision); 404 } 405 } 406 407 /* If so far no errors then we shall start the camera */ 408 if (!errCode) { 409 down(&usbvision->lock); 410 if (usbvision->power == 0) { 411 usbvision_power_on(usbvision); 412 usbvision_init_i2c(usbvision); 413 } 414 415 /* Send init sequence only once, it's large! */ 416 if (!usbvision->initialized) { 417 int setup_ok = 0; 418 setup_ok = usbvision_setup(usbvision,isocMode); 419 if (setup_ok) 420 usbvision->initialized = 1; 421 else 422 errCode = -EBUSY; 423 } 424 425 if (!errCode) { 426 usbvision_begin_streaming(usbvision); 427 errCode = usbvision_init_isoc(usbvision); 428 /* device needs to be initialized before isoc transfer */ 429 usbvision_muxsel(usbvision,0); 430 usbvision->user++; 431 } 432 else { 433 if (PowerOnAtOpen) { 434 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 435 usbvision_power_off(usbvision); 436 usbvision->initialized = 0; 437 } 438 } 439 up(&usbvision->lock); 440 } 441 442 if (errCode) { 443 } 444 445 /* prepare queues */ 446 usbvision_empty_framequeues(usbvision); 447 448 PDEBUG(DBG_IO, "success"); 449 return errCode; 450} 451 452/* 453 * usbvision_v4l2_close() 454 * 455 * This is part of Video 4 Linux API. The procedure 456 * stops streaming and deallocates all buffers that were earlier 457 * allocated in usbvision_v4l2_open(). 458 * 459 */ 460static int usbvision_v4l2_close(struct inode *inode, struct file *file) 461{ 462 struct video_device *dev = video_devdata(file); 463 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 464 465 PDEBUG(DBG_IO, "close"); 466 down(&usbvision->lock); 467 468 usbvision_audio_off(usbvision); 469 usbvision_restart_isoc(usbvision); 470 usbvision_stop_isoc(usbvision); 471 472 usbvision_decompress_free(usbvision); 473 usbvision_frames_free(usbvision); 474 usbvision_empty_framequeues(usbvision); 475 usbvision_scratch_free(usbvision); 476 477 usbvision->user--; 478 479 if (PowerOnAtOpen) { 480 /* power off in a little while to avoid off/on every close/open short sequences */ 481 usbvision_set_powerOffTimer(usbvision); 482 usbvision->initialized = 0; 483 } 484 485 up(&usbvision->lock); 486 487 if (usbvision->remove_pending) { 488 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 489 usbvision_release(usbvision); 490 } 491 492 PDEBUG(DBG_IO, "success"); 493 494 495 return 0; 496} 497 498 499/* 500 * usbvision_ioctl() 501 * 502 * This is part of Video 4 Linux API. The procedure handles ioctl() calls. 503 * 504 */ 505static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, 506 unsigned int cmd, void *arg) 507{ 508 struct video_device *dev = video_devdata(file); 509 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 510 511 if (!USBVISION_IS_OPERATIONAL(usbvision)) 512 return -EFAULT; 513 514 switch (cmd) { 515 516#ifdef CONFIG_VIDEO_ADV_DEBUG 517 /* ioctls to allow direct acces to the NT100x registers */ 518 case VIDIOC_DBG_G_REGISTER: 519 case VIDIOC_DBG_S_REGISTER: 520 { 521 struct v4l2_register *reg = arg; 522 int errCode; 523 524 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 525 return -EINVAL; 526 if (!capable(CAP_SYS_ADMIN)) 527 return -EPERM; 528 /* NT100x has a 8-bit register space */ 529 if (cmd == VIDIOC_DBG_G_REGISTER) 530 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 531 else 532 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 533 if (errCode < 0) { 534 err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__, 535 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode); 536 return errCode; 537 } 538 if (cmd == VIDIOC_DBG_S_REGISTER) 539 reg->val = (u8)errCode; 540 541 PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X", 542 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', 543 (unsigned int)reg->reg, (unsigned int)reg->val); 544 return 0; 545 } 546#endif 547 case VIDIOC_QUERYCAP: 548 { 549 struct v4l2_capability *vc=arg; 550 551 memset(vc, 0, sizeof(*vc)); 552 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 553 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 554 sizeof(vc->card)); 555 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 556 sizeof(vc->bus_info)); 557 vc->version = USBVISION_DRIVER_VERSION; 558 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 559 V4L2_CAP_AUDIO | 560 V4L2_CAP_READWRITE | 561 V4L2_CAP_STREAMING | 562 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 563 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); 564 return 0; 565 } 566 case VIDIOC_ENUMINPUT: 567 { 568 struct v4l2_input *vi = arg; 569 int chan; 570 571 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 572 return -EINVAL; 573 if (usbvision->have_tuner) { 574 chan = vi->index; 575 } 576 else { 577 chan = vi->index + 1; //skip Television string 578 } 579 switch(chan) { 580 case 0: 581 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 582 strcpy(vi->name, "White Video Input"); 583 } 584 else { 585 strcpy(vi->name, "Television"); 586 vi->type = V4L2_INPUT_TYPE_TUNER; 587 vi->audioset = 1; 588 vi->tuner = chan; 589 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; 590 } 591 break; 592 case 1: 593 vi->type = V4L2_INPUT_TYPE_CAMERA; 594 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 595 strcpy(vi->name, "Green Video Input"); 596 } 597 else { 598 strcpy(vi->name, "Composite Video Input"); 599 } 600 vi->std = V4L2_STD_PAL; 601 break; 602 case 2: 603 vi->type = V4L2_INPUT_TYPE_CAMERA; 604 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 605 strcpy(vi->name, "Yellow Video Input"); 606 } 607 else { 608 strcpy(vi->name, "S-Video Input"); 609 } 610 vi->std = V4L2_STD_PAL; 611 break; 612 case 3: 613 vi->type = V4L2_INPUT_TYPE_CAMERA; 614 strcpy(vi->name, "Red Video Input"); 615 vi->std = V4L2_STD_PAL; 616 break; 617 } 618 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", 619 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); 620 return 0; 621 } 622 case VIDIOC_ENUMSTD: 623 { 624 struct v4l2_standard *e = arg; 625 unsigned int i; 626 int ret; 627 628 i = e->index; 629 if (i >= TVNORMS) 630 return -EINVAL; 631 ret = v4l2_video_std_construct(e, tvnorms[e->index].id, 632 tvnorms[e->index].name); 633 e->index = i; 634 if (ret < 0) 635 return ret; 636 return 0; 637 } 638 case VIDIOC_G_INPUT: 639 { 640 int *input = arg; 641 *input = usbvision->ctl_input; 642 return 0; 643 } 644 case VIDIOC_S_INPUT: 645 { 646 int *input = arg; 647 if ((*input >= usbvision->video_inputs) || (*input < 0) ) 648 return -EINVAL; 649 usbvision->ctl_input = *input; 650 651 down(&usbvision->lock); 652 usbvision_muxsel(usbvision, usbvision->ctl_input); 653 usbvision_set_input(usbvision); 654 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); 655 up(&usbvision->lock); 656 return 0; 657 } 658 case VIDIOC_G_STD: 659 { 660 v4l2_std_id *id = arg; 661 662 *id = usbvision->tvnorm->id; 663 664 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); 665 return 0; 666 } 667 case VIDIOC_S_STD: 668 { 669 v4l2_std_id *id = arg; 670 unsigned int i; 671 672 for (i = 0; i < TVNORMS; i++) 673 if (*id == tvnorms[i].id) 674 break; 675 if (i == TVNORMS) 676 for (i = 0; i < TVNORMS; i++) 677 if (*id & tvnorms[i].id) 678 break; 679 if (i == TVNORMS) 680 return -EINVAL; 681 682 down(&usbvision->lock); 683 usbvision->tvnorm = &tvnorms[i]; 684 685 call_i2c_clients(usbvision, VIDIOC_S_STD, 686 &usbvision->tvnorm->id); 687 688 up(&usbvision->lock); 689 690 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); 691 return 0; 692 } 693 case VIDIOC_G_TUNER: 694 { 695 struct v4l2_tuner *vt = arg; 696 697 if (!usbvision->have_tuner || vt->index) // Only tuner 0 698 return -EINVAL; 699 strcpy(vt->name, "Television"); 700 /* Let clients fill in the remainder of this struct */ 701 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 702 703 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); 704 return 0; 705 } 706 case VIDIOC_S_TUNER: 707 { 708 struct v4l2_tuner *vt = arg; 709 710 // Only no or one tuner for now 711 if (!usbvision->have_tuner || vt->index) 712 return -EINVAL; 713 /* let clients handle this */ 714 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 715 716 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); 717 return 0; 718 } 719 case VIDIOC_G_FREQUENCY: 720 { 721 struct v4l2_frequency *freq = arg; 722 723 freq->tuner = 0; // Only one tuner 724 freq->type = V4L2_TUNER_ANALOG_TV; 725 freq->frequency = usbvision->freq; 726 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 727 return 0; 728 } 729 case VIDIOC_S_FREQUENCY: 730 { 731 struct v4l2_frequency *freq = arg; 732 733 // Only no or one tuner for now 734 if (!usbvision->have_tuner || freq->tuner) 735 return -EINVAL; 736 737 usbvision->freq = freq->frequency; 738 call_i2c_clients(usbvision, cmd, freq); 739 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 740 return 0; 741 } 742 case VIDIOC_G_AUDIO: 743 { 744 struct v4l2_audio *v = arg; 745 memset(v,0, sizeof(v)); 746 strcpy(v->name, "TV"); 747 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); 748 return 0; 749 } 750 case VIDIOC_S_AUDIO: 751 { 752 struct v4l2_audio *v = arg; 753 if(v->index) { 754 return -EINVAL; 755 } 756 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); 757 return 0; 758 } 759 case VIDIOC_QUERYCTRL: 760 { 761 struct v4l2_queryctrl *ctrl = arg; 762 int id=ctrl->id; 763 764 memset(ctrl,0,sizeof(*ctrl)); 765 ctrl->id=id; 766 767 call_i2c_clients(usbvision, cmd, arg); 768 769 if (ctrl->type) 770 return 0; 771 else 772 return -EINVAL; 773 774 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 775 } 776 case VIDIOC_G_CTRL: 777 { 778 struct v4l2_control *ctrl = arg; 779 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 780 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 781 return 0; 782 } 783 case VIDIOC_S_CTRL: 784 { 785 struct v4l2_control *ctrl = arg; 786 787 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 788 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 789 return 0; 790 } 791 case VIDIOC_REQBUFS: 792 { 793 struct v4l2_requestbuffers *vr = arg; 794 int ret; 795 796 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 797 798 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method. 799 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 800 (vr->memory != V4L2_MEMORY_MMAP)) 801 return -EINVAL; 802 803 if(usbvision->streaming == Stream_On) { 804 if ((ret = usbvision_stream_interrupt(usbvision))) 805 return ret; 806 } 807 808 usbvision_frames_free(usbvision); 809 usbvision_empty_framequeues(usbvision); 810 vr->count = usbvision_frames_alloc(usbvision,vr->count); 811 812 usbvision->curFrame = NULL; 813 814 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); 815 return 0; 816 } 817 case VIDIOC_QUERYBUF: 818 { 819 struct v4l2_buffer *vb = arg; 820 struct usbvision_frame *frame; 821 822 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called) 823 824 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 825 return -EINVAL; 826 } 827 if(vb->index>=usbvision->num_frames) { 828 return -EINVAL; 829 } 830 // Updating the corresponding frame state 831 vb->flags = 0; 832 frame = &usbvision->frame[vb->index]; 833 if(frame->grabstate >= FrameState_Ready) 834 vb->flags |= V4L2_BUF_FLAG_QUEUED; 835 if(frame->grabstate >= FrameState_Done) 836 vb->flags |= V4L2_BUF_FLAG_DONE; 837 if(frame->grabstate == FrameState_Unused) 838 vb->flags |= V4L2_BUF_FLAG_MAPPED; 839 vb->memory = V4L2_MEMORY_MMAP; 840 841 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 842 843 vb->memory = V4L2_MEMORY_MMAP; 844 vb->field = V4L2_FIELD_NONE; 845 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel; 846 vb->timestamp = usbvision->frame[vb->index].timestamp; 847 vb->sequence = usbvision->frame[vb->index].sequence; 848 return 0; 849 } 850 case VIDIOC_QBUF: 851 { 852 struct v4l2_buffer *vb = arg; 853 struct usbvision_frame *frame; 854 unsigned long lock_flags; 855 856 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP. 857 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 858 return -EINVAL; 859 } 860 if(vb->index>=usbvision->num_frames) { 861 return -EINVAL; 862 } 863 864 frame = &usbvision->frame[vb->index]; 865 866 if (frame->grabstate != FrameState_Unused) { 867 return -EAGAIN; 868 } 869 870 /* Mark it as ready and enqueue frame */ 871 frame->grabstate = FrameState_Ready; 872 frame->scanstate = ScanState_Scanning; 873 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 874 875 vb->flags &= ~V4L2_BUF_FLAG_DONE; 876 877 /* set v4l2_format index */ 878 frame->v4l2_format = usbvision->palette; 879 880 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 881 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 882 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 883 884 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); 885 return 0; 886 } 887 case VIDIOC_DQBUF: 888 { 889 struct v4l2_buffer *vb = arg; 890 int ret; 891 struct usbvision_frame *f; 892 unsigned long lock_flags; 893 894 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 895 return -EINVAL; 896 897 if (list_empty(&(usbvision->outqueue))) { 898 if (usbvision->streaming == Stream_Idle) 899 return -EINVAL; 900 ret = wait_event_interruptible 901 (usbvision->wait_frame, 902 !list_empty(&(usbvision->outqueue))); 903 if (ret) 904 return ret; 905 } 906 907 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 908 f = list_entry(usbvision->outqueue.next, 909 struct usbvision_frame, frame); 910 list_del(usbvision->outqueue.next); 911 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 912 913 f->grabstate = FrameState_Unused; 914 915 vb->memory = V4L2_MEMORY_MMAP; 916 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE; 917 vb->index = f->index; 918 vb->sequence = f->sequence; 919 vb->timestamp = f->timestamp; 920 vb->field = V4L2_FIELD_NONE; 921 vb->bytesused = f->scanlength; 922 923 return 0; 924 } 925 case VIDIOC_STREAMON: 926 { 927 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 928 929 usbvision->streaming = Stream_On; 930 931 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 932 933 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); 934 935 return 0; 936 } 937 case VIDIOC_STREAMOFF: 938 { 939 int *type = arg; 940 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 941 942 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 943 return -EINVAL; 944 945 if(usbvision->streaming == Stream_On) { 946 usbvision_stream_interrupt(usbvision); 947 // Stop all video streamings 948 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 949 } 950 usbvision_empty_framequeues(usbvision); 951 952 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); 953 return 0; 954 } 955 case VIDIOC_ENUM_FMT: 956 { 957 struct v4l2_fmtdesc *vfd = arg; 958 959 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 960 return -EINVAL; 961 } 962 vfd->flags = 0; 963 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 964 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 965 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 966 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 967 return 0; 968 } 969 case VIDIOC_G_FMT: 970 { 971 struct v4l2_format *vf = arg; 972 973 switch (vf->type) { 974 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 975 { 976 vf->fmt.pix.width = usbvision->curwidth; 977 vf->fmt.pix.height = usbvision->curheight; 978 vf->fmt.pix.pixelformat = usbvision->palette.format; 979 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel; 980 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 981 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 982 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 983 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", 984 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 985 return 0; 986 } 987 default: 988 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); 989 return -EINVAL; 990 } 991 return 0; 992 } 993 case VIDIOC_TRY_FMT: 994 case VIDIOC_S_FMT: 995 { 996 struct v4l2_format *vf = arg; 997 int formatIdx,ret; 998 999 switch(vf->type) { 1000 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 1001 { 1002 /* Find requested format in available ones */ 1003 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 1004 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { 1005 usbvision->palette = usbvision_v4l2_format[formatIdx]; 1006 break; 1007 } 1008 } 1009 /* robustness */ 1010 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 1011 return -EINVAL; 1012 } 1013 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 1014 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 1015 1016 vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel; 1017 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 1018 1019 if(cmd == VIDIOC_TRY_FMT) { 1020 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", 1021 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1022 return 0; 1023 } 1024 1025 /* stop io in case it is already in progress */ 1026 if(usbvision->streaming == Stream_On) { 1027 if ((ret = usbvision_stream_interrupt(usbvision))) 1028 return ret; 1029 } 1030 usbvision_frames_free(usbvision); 1031 usbvision_empty_framequeues(usbvision); 1032 1033 usbvision->curFrame = NULL; 1034 1035 // by now we are committed to the new data... 1036 down(&usbvision->lock); 1037 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1038 up(&usbvision->lock); 1039 1040 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", 1041 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1042 return 0; 1043 } 1044 default: 1045 return -EINVAL; 1046 } 1047 } 1048 default: 1049 return -ENOIOCTLCMD; 1050 } 1051 return 0; 1052} 1053 1054static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, 1055 unsigned int cmd, unsigned long arg) 1056{ 1057 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); 1058} 1059 1060 1061static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1062 size_t count, loff_t *ppos) 1063{ 1064 struct video_device *dev = video_devdata(file); 1065 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1066 int noblock = file->f_flags & O_NONBLOCK; 1067 unsigned long lock_flags; 1068 1069 int ret,i; 1070 struct usbvision_frame *frame; 1071 1072 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock); 1073 1074 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1075 return -EFAULT; 1076 1077 /* This entry point is compatible with the mmap routines so that a user can do either 1078 VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */ 1079 if(!usbvision->num_frames) { 1080 /* First, allocate some frames to work with if this has not been done with 1081 VIDIOC_REQBUF */ 1082 usbvision_frames_free(usbvision); 1083 usbvision_empty_framequeues(usbvision); 1084 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1085 } 1086 1087 if(usbvision->streaming != Stream_On) { 1088 /* no stream is running, make it running ! */ 1089 usbvision->streaming = Stream_On; 1090 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1091 } 1092 1093 /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ 1094 for(i=0;i<usbvision->num_frames;i++) { 1095 frame = &usbvision->frame[i]; 1096 if(frame->grabstate == FrameState_Unused) { 1097 /* Mark it as ready and enqueue frame */ 1098 frame->grabstate = FrameState_Ready; 1099 frame->scanstate = ScanState_Scanning; 1100 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 1101 1102 /* set v4l2_format index */ 1103 frame->v4l2_format = usbvision->palette; 1104 1105 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1106 list_add_tail(&frame->frame, &usbvision->inqueue); 1107 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1108 } 1109 } 1110 1111 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1112 if (list_empty(&(usbvision->outqueue))) { 1113 if(noblock) 1114 return -EAGAIN; 1115 1116 ret = wait_event_interruptible 1117 (usbvision->wait_frame, 1118 !list_empty(&(usbvision->outqueue))); 1119 if (ret) 1120 return ret; 1121 } 1122 1123 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1124 frame = list_entry(usbvision->outqueue.next, 1125 struct usbvision_frame, frame); 1126 list_del(usbvision->outqueue.next); 1127 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1128 1129 /* An error returns an empty frame */ 1130 if (frame->grabstate == FrameState_Error) { 1131 frame->bytes_read = 0; 1132 return 0; 1133 } 1134 1135 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, 1136 frame->index, frame->bytes_read, frame->scanlength); 1137 1138 /* copy bytes to user space; we allow for partials reads */ 1139 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1140 count = frame->scanlength - frame->bytes_read; 1141 1142 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1143 return -EFAULT; 1144 } 1145 1146 frame->bytes_read += count; 1147 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__, 1148 (unsigned long)count, frame->bytes_read); 1149 1150 // For now, forget the frame if it has not been read in one shot. 1151/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1152 frame->bytes_read = 0; 1153 1154 /* Mark it as available to be used again. */ 1155 frame->grabstate = FrameState_Unused; 1156/* } */ 1157 1158 return count; 1159} 1160 1161static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1162{ 1163 unsigned long size = vma->vm_end - vma->vm_start, 1164 start = vma->vm_start; 1165 void *pos; 1166 u32 i; 1167 1168 struct video_device *dev = video_devdata(file); 1169 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1170 1171 PDEBUG(DBG_MMAP, "mmap"); 1172 1173 down(&usbvision->lock); 1174 1175 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1176 up(&usbvision->lock); 1177 return -EFAULT; 1178 } 1179 1180 if (!(vma->vm_flags & VM_WRITE) || 1181 size != PAGE_ALIGN(usbvision->max_frame_size)) { 1182 up(&usbvision->lock); 1183 return -EINVAL; 1184 } 1185 1186 for (i = 0; i < usbvision->num_frames; i++) { 1187 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff) 1188 break; 1189 } 1190 if (i == usbvision->num_frames) { 1191 PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range"); 1192 up(&usbvision->lock); 1193 return -EINVAL; 1194 } 1195 1196 /* VM_IO is eventually going to replace PageReserved altogether */ 1197 vma->vm_flags |= VM_IO; 1198 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1199 1200 pos = usbvision->frame[i].data; 1201 while (size > 0) { 1202 1203 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1204 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1205 up(&usbvision->lock); 1206 return -EAGAIN; 1207 } 1208 start += PAGE_SIZE; 1209 pos += PAGE_SIZE; 1210 size -= PAGE_SIZE; 1211 } 1212 1213 up(&usbvision->lock); 1214 return 0; 1215} 1216 1217 1218/* 1219 * Here comes the stuff for radio on usbvision based devices 1220 * 1221 */ 1222static int usbvision_radio_open(struct inode *inode, struct file *file) 1223{ 1224 struct video_device *dev = video_devdata(file); 1225 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1226 struct v4l2_frequency freq; 1227 int errCode = 0; 1228 1229 PDEBUG(DBG_IO, "%s:", __FUNCTION__); 1230 1231 down(&usbvision->lock); 1232 1233 if (usbvision->user) { 1234 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__); 1235 errCode = -EBUSY; 1236 } 1237 else { 1238 if(PowerOnAtOpen) { 1239 usbvision_reset_powerOffTimer(usbvision); 1240 if (usbvision->power == 0) { 1241 usbvision_power_on(usbvision); 1242 usbvision_init_i2c(usbvision); 1243 } 1244 } 1245 1246 /* Alternate interface 1 is is the biggest frame size */ 1247 errCode = usbvision_set_alternate(usbvision); 1248 if (errCode < 0) { 1249 usbvision->last_error = errCode; 1250 return -EBUSY; 1251 } 1252 1253 // If so far no errors then we shall start the radio 1254 usbvision->radio = 1; 1255 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); 1256 freq.frequency = 1517; //SWR3 @ 94.8MHz 1257 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq); 1258 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1259 usbvision->user++; 1260 } 1261 1262 if (errCode) { 1263 if (PowerOnAtOpen) { 1264 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 1265 usbvision_power_off(usbvision); 1266 usbvision->initialized = 0; 1267 } 1268 } 1269 up(&usbvision->lock); 1270 return errCode; 1271} 1272 1273 1274static int usbvision_radio_close(struct inode *inode, struct file *file) 1275{ 1276 struct video_device *dev = video_devdata(file); 1277 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1278 int errCode = 0; 1279 1280 PDEBUG(DBG_IO, ""); 1281 1282 down(&usbvision->lock); 1283 1284 /* Set packet size to 0 */ 1285 usbvision->ifaceAlt=0; 1286 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1287 usbvision->ifaceAlt); 1288 1289 usbvision_audio_off(usbvision); 1290 usbvision->radio=0; 1291 usbvision->user--; 1292 1293 if (PowerOnAtOpen) { 1294 usbvision_set_powerOffTimer(usbvision); 1295 usbvision->initialized = 0; 1296 } 1297 1298 up(&usbvision->lock); 1299 1300 if (usbvision->remove_pending) { 1301 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 1302 usbvision_release(usbvision); 1303 } 1304 1305 1306 PDEBUG(DBG_IO, "success"); 1307 1308 return errCode; 1309} 1310 1311static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, 1312 unsigned int cmd, void *arg) 1313{ 1314 struct video_device *dev = video_devdata(file); 1315 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1316 1317 if (!USBVISION_IS_OPERATIONAL(usbvision)) 1318 return -EIO; 1319 1320 switch (cmd) { 1321 case VIDIOC_QUERYCAP: 1322 { 1323 struct v4l2_capability *vc=arg; 1324 1325 memset(vc, 0, sizeof(*vc)); 1326 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 1327 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 1328 sizeof(vc->card)); 1329 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 1330 sizeof(vc->bus_info)); 1331 vc->version = USBVISION_DRIVER_VERSION; 1332 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 1333 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); 1334 return 0; 1335 } 1336 case VIDIOC_QUERYCTRL: 1337 { 1338 struct v4l2_queryctrl *ctrl = arg; 1339 int id=ctrl->id; 1340 1341 memset(ctrl,0,sizeof(*ctrl)); 1342 ctrl->id=id; 1343 1344 call_i2c_clients(usbvision, cmd, arg); 1345 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 1346 1347 if (ctrl->type) 1348 return 0; 1349 else 1350 return -EINVAL; 1351 1352 } 1353 case VIDIOC_G_CTRL: 1354 { 1355 struct v4l2_control *ctrl = arg; 1356 1357 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 1358 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1359 return 0; 1360 } 1361 case VIDIOC_S_CTRL: 1362 { 1363 struct v4l2_control *ctrl = arg; 1364 1365 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 1366 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1367 return 0; 1368 } 1369 case VIDIOC_G_TUNER: 1370 { 1371 struct v4l2_tuner *t = arg; 1372 1373 if (t->index > 0) 1374 return -EINVAL; 1375 1376 memset(t,0,sizeof(*t)); 1377 strcpy(t->name, "Radio"); 1378 t->type = V4L2_TUNER_RADIO; 1379 1380 /* Let clients fill in the remainder of this struct */ 1381 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); 1382 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); 1383 return 0; 1384 } 1385 case VIDIOC_S_TUNER: 1386 { 1387 struct v4l2_tuner *vt = arg; 1388 1389 // Only no or one tuner for now 1390 if (!usbvision->have_tuner || vt->index) 1391 return -EINVAL; 1392 /* let clients handle this */ 1393 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 1394 1395 PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); 1396 return 0; 1397 } 1398 case VIDIOC_G_AUDIO: 1399 { 1400 struct v4l2_audio *a = arg; 1401 1402 memset(a,0,sizeof(*a)); 1403 strcpy(a->name,"Radio"); 1404 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); 1405 return 0; 1406 } 1407 case VIDIOC_S_AUDIO: 1408 case VIDIOC_S_INPUT: 1409 case VIDIOC_S_STD: 1410 return 0; 1411 1412 case VIDIOC_G_FREQUENCY: 1413 { 1414 struct v4l2_frequency *f = arg; 1415 1416 memset(f,0,sizeof(*f)); 1417 1418 f->type = V4L2_TUNER_RADIO; 1419 f->frequency = usbvision->freq; 1420 call_i2c_clients(usbvision, cmd, f); 1421 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1422 1423 return 0; 1424 } 1425 case VIDIOC_S_FREQUENCY: 1426 { 1427 struct v4l2_frequency *f = arg; 1428 1429 if (f->tuner != 0) 1430 return -EINVAL; 1431 usbvision->freq = f->frequency; 1432 call_i2c_clients(usbvision, cmd, f); 1433 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1434 1435 return 0; 1436 } 1437 default: 1438 { 1439 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); 1440 return -ENOIOCTLCMD; 1441 } 1442 } 1443 return 0; 1444} 1445 1446 1447static int usbvision_radio_ioctl(struct inode *inode, struct file *file, 1448 unsigned int cmd, unsigned long arg) 1449{ 1450 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); 1451} 1452 1453 1454/* 1455 * Here comes the stuff for vbi on usbvision based devices 1456 * 1457 */ 1458static int usbvision_vbi_open(struct inode *inode, struct file *file) 1459{ 1460 /* TODO */ 1461 return -EINVAL; 1462 1463} 1464 1465static int usbvision_vbi_close(struct inode *inode, struct file *file) 1466{ 1467 /* TODO */ 1468 return -EINVAL; 1469} 1470 1471static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, 1472 unsigned int cmd, void *arg) 1473{ 1474 /* TODO */ 1475 return -EINVAL; 1476} 1477 1478static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1479 unsigned int cmd, unsigned long arg) 1480{ 1481 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); 1482} 1483 1484 1485// 1486// Video registration stuff 1487// 1488 1489// Video template 1490static const struct file_operations usbvision_fops = { 1491 .owner = THIS_MODULE, 1492 .open = usbvision_v4l2_open, 1493 .release = usbvision_v4l2_close, 1494 .read = usbvision_v4l2_read, 1495 .mmap = usbvision_v4l2_mmap, 1496 .ioctl = usbvision_v4l2_ioctl, 1497 .llseek = no_llseek, 1498}; 1499static struct video_device usbvision_video_template = { 1500 .owner = THIS_MODULE, 1501 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, 1502 .hardware = VID_HARDWARE_USBVISION, 1503 .fops = &usbvision_fops, 1504 .name = "usbvision-video", 1505 .release = video_device_release, 1506 .minor = -1, 1507}; 1508 1509 1510// Radio template 1511static const struct file_operations usbvision_radio_fops = { 1512 .owner = THIS_MODULE, 1513 .open = usbvision_radio_open, 1514 .release = usbvision_radio_close, 1515 .ioctl = usbvision_radio_ioctl, 1516 .llseek = no_llseek, 1517}; 1518 1519static struct video_device usbvision_radio_template= 1520{ 1521 .owner = THIS_MODULE, 1522 .type = VID_TYPE_TUNER, 1523 .hardware = VID_HARDWARE_USBVISION, 1524 .fops = &usbvision_radio_fops, 1525 .release = video_device_release, 1526 .name = "usbvision-radio", 1527 .minor = -1, 1528}; 1529 1530 1531// vbi template 1532static const struct file_operations usbvision_vbi_fops = { 1533 .owner = THIS_MODULE, 1534 .open = usbvision_vbi_open, 1535 .release = usbvision_vbi_close, 1536 .ioctl = usbvision_vbi_ioctl, 1537 .llseek = no_llseek, 1538}; 1539 1540static struct video_device usbvision_vbi_template= 1541{ 1542 .owner = THIS_MODULE, 1543 .type = VID_TYPE_TUNER, 1544 .hardware = VID_HARDWARE_USBVISION, 1545 .fops = &usbvision_vbi_fops, 1546 .release = video_device_release, 1547 .name = "usbvision-vbi", 1548 .minor = -1, 1549}; 1550 1551 1552static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1553 struct video_device *vdev_template, 1554 char *name) 1555{ 1556 struct usb_device *usb_dev = usbvision->dev; 1557 struct video_device *vdev; 1558 1559 if (usb_dev == NULL) { 1560 err("%s: usbvision->dev is not set", __FUNCTION__); 1561 return NULL; 1562 } 1563 1564 vdev = video_device_alloc(); 1565 if (NULL == vdev) { 1566 return NULL; 1567 } 1568 *vdev = *vdev_template; 1569// vdev->minor = -1; 1570 vdev->dev = &usb_dev->dev; 1571 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1572 video_set_drvdata(vdev, usbvision); 1573 return vdev; 1574} 1575 1576// unregister video4linux devices 1577static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1578{ 1579 // vbi Device: 1580 if (usbvision->vbi) { 1581 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); 1582 if (usbvision->vbi->minor != -1) { 1583 video_unregister_device(usbvision->vbi); 1584 } 1585 else { 1586 video_device_release(usbvision->vbi); 1587 } 1588 usbvision->vbi = NULL; 1589 } 1590 1591 // Radio Device: 1592 if (usbvision->rdev) { 1593 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); 1594 if (usbvision->rdev->minor != -1) { 1595 video_unregister_device(usbvision->rdev); 1596 } 1597 else { 1598 video_device_release(usbvision->rdev); 1599 } 1600 usbvision->rdev = NULL; 1601 } 1602 1603 // Video Device: 1604 if (usbvision->vdev) { 1605 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); 1606 if (usbvision->vdev->minor != -1) { 1607 video_unregister_device(usbvision->vdev); 1608 } 1609 else { 1610 video_device_release(usbvision->vdev); 1611 } 1612 usbvision->vdev = NULL; 1613 } 1614} 1615 1616// register video4linux devices 1617static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1618{ 1619 // Video Device: 1620 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video"); 1621 if (usbvision->vdev == NULL) { 1622 goto err_exit; 1623 } 1624 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) { 1625 goto err_exit; 1626 } 1627 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f); 1628 1629 // Radio Device: 1630 if (usbvision_device_data[usbvision->DevModel].Radio) { 1631 // usbvision has radio 1632 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio"); 1633 if (usbvision->rdev == NULL) { 1634 goto err_exit; 1635 } 1636 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) { 1637 goto err_exit; 1638 } 1639 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f); 1640 } 1641 // vbi Device: 1642 if (usbvision_device_data[usbvision->DevModel].vbi) { 1643 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); 1644 if (usbvision->vdev == NULL) { 1645 goto err_exit; 1646 } 1647 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { 1648 goto err_exit; 1649 } 1650 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f); 1651 } 1652 // all done 1653 return 0; 1654 1655 err_exit: 1656 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1657 usbvision_unregister_video(usbvision); 1658 return -1; 1659} 1660 1661/* 1662 * usbvision_alloc() 1663 * 1664 * This code allocates the struct usb_usbvision. It is filled with default values. 1665 * 1666 * Returns NULL on error, a pointer to usb_usbvision else. 1667 * 1668 */ 1669static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1670{ 1671 struct usb_usbvision *usbvision; 1672 1673 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { 1674 goto err_exit; 1675 } 1676 1677 usbvision->dev = dev; 1678 1679 init_MUTEX(&usbvision->lock); /* to 1 == available */ 1680 1681 // prepare control urb for control messages during interrupts 1682 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1683 if (usbvision->ctrlUrb == NULL) { 1684 goto err_exit; 1685 } 1686 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1687 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ 1688 1689 usbvision_init_powerOffTimer(usbvision); 1690 1691 return usbvision; 1692 1693err_exit: 1694 if (usbvision && usbvision->ctrlUrb) { 1695 usb_free_urb(usbvision->ctrlUrb); 1696 } 1697 if (usbvision) { 1698 kfree(usbvision); 1699 } 1700 return NULL; 1701} 1702 1703/* 1704 * usbvision_release() 1705 * 1706 * This code does final release of struct usb_usbvision. This happens 1707 * after the device is disconnected -and- all clients closed their files. 1708 * 1709 */ 1710static void usbvision_release(struct usb_usbvision *usbvision) 1711{ 1712 PDEBUG(DBG_PROBE, ""); 1713 1714 down(&usbvision->lock); 1715 1716 usbvision_reset_powerOffTimer(usbvision); 1717 1718 usbvision->initialized = 0; 1719 1720 up(&usbvision->lock); 1721 1722 usbvision_remove_sysfs(usbvision->vdev); 1723 usbvision_unregister_video(usbvision); 1724 1725 if (usbvision->ctrlUrb) { 1726 usb_free_urb(usbvision->ctrlUrb); 1727 } 1728 1729 kfree(usbvision); 1730 1731 PDEBUG(DBG_PROBE, "success"); 1732} 1733 1734 1735/******************************** usb interface *****************************************/ 1736 1737static void usbvision_configure_video(struct usb_usbvision *usbvision) 1738{ 1739 int model,i; 1740 1741 if (usbvision == NULL) 1742 return; 1743 1744 model = usbvision->DevModel; 1745 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1746 1747 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) { 1748 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff; 1749 } else { 1750 usbvision->Vin_Reg2_Preset = 0; 1751 } 1752 1753 for (i = 0; i < TVNORMS; i++) 1754 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) 1755 break; 1756 if (i == TVNORMS) 1757 i = 0; 1758 usbvision->tvnorm = &tvnorms[i]; /* set default norm */ 1759 1760 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1761 usbvision->ctl_input = 0; 1762 1763 /* This should be here to make i2c clients to be able to register */ 1764 usbvision_audio_off(usbvision); //first switch off audio 1765 if (!PowerOnAtOpen) { 1766 usbvision_power_on(usbvision); //and then power up the noisy tuner 1767 usbvision_init_i2c(usbvision); 1768 } 1769} 1770 1771/* 1772 * usbvision_probe() 1773 * 1774 * This procedure queries device descriptor and accepts the interface 1775 * if it looks like USBVISION video device 1776 * 1777 */ 1778static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid) 1779{ 1780 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1781 struct usb_interface *uif; 1782 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1783 const struct usb_host_interface *interface; 1784 struct usb_usbvision *usbvision = NULL; 1785 const struct usb_endpoint_descriptor *endpoint; 1786 int model,i; 1787 1788 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1789 dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum); 1790 1791 /* Is it an USBVISION video dev? */ 1792 model = 0; 1793 for(model = 0; usbvision_device_data[model].idVendor; model++) { 1794 if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) { 1795 continue; 1796 } 1797 if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) { 1798 continue; 1799 } 1800 1801 printk(KERN_INFO "%s: %s found\n", __FUNCTION__, usbvision_device_data[model].ModelString); 1802 break; 1803 } 1804 1805 if (usbvision_device_data[model].idVendor == 0) { 1806 return -ENODEV; //no matching device 1807 } 1808 if (usbvision_device_data[model].Interface >= 0) { 1809 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1810 } 1811 else { 1812 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1813 } 1814 endpoint = &interface->endpoint[1].desc; 1815 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { 1816 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); 1817 err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes); 1818 return -ENODEV; 1819 } 1820 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { 1821 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum); 1822 return -ENODEV; 1823 } 1824 1825 usb_get_dev(dev); 1826 1827 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1828 err("%s: couldn't allocate USBVision struct", __FUNCTION__); 1829 return -ENOMEM; 1830 } 1831 if (dev->descriptor.bNumConfigurations > 1) { 1832 usbvision->bridgeType = BRIDGE_NT1004; 1833 } 1834 else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") { 1835 usbvision->bridgeType = BRIDGE_NT1005; 1836 } 1837 else { 1838 usbvision->bridgeType = BRIDGE_NT1003; 1839 } 1840 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1841 1842 down(&usbvision->lock); 1843 1844 /* compute alternate max packet sizes */ 1845 uif = dev->actconfig->interface[0]; 1846 1847 usbvision->num_alt=uif->num_altsetting; 1848 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1849 usbvision->alt_max_pkt_size = kmalloc(32* 1850 usbvision->num_alt,GFP_KERNEL); 1851 if (usbvision->alt_max_pkt_size == NULL) { 1852 err("usbvision: out of memory!\n"); 1853 return -ENOMEM; 1854 } 1855 1856 for (i = 0; i < usbvision->num_alt ; i++) { 1857 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1858 wMaxPacketSize); 1859 usbvision->alt_max_pkt_size[i] = 1860 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1861 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1862 usbvision->alt_max_pkt_size[i]); 1863 } 1864 1865 1866 usbvision->nr = usbvision_nr++; 1867 1868 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1869 if (usbvision->have_tuner) { 1870 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1871 } 1872 1873 usbvision->tuner_addr = ADDR_UNSET; 1874 1875 usbvision->DevModel = model; 1876 usbvision->remove_pending = 0; 1877 usbvision->iface = ifnum; 1878 usbvision->ifaceAlt = 0; 1879 usbvision->video_endp = endpoint->bEndpointAddress; 1880 usbvision->isocPacketSize = 0; 1881 usbvision->usb_bandwidth = 0; 1882 usbvision->user = 0; 1883 usbvision->streaming = Stream_Off; 1884 usbvision_register_video(usbvision); 1885 usbvision_configure_video(usbvision); 1886 up(&usbvision->lock); 1887 1888 1889 usb_set_intfdata (intf, usbvision); 1890 usbvision_create_sysfs(usbvision->vdev); 1891 1892 PDEBUG(DBG_PROBE, "success"); 1893 return 0; 1894} 1895 1896 1897/* 1898 * usbvision_disconnect() 1899 * 1900 * This procedure stops all driver activity, deallocates interface-private 1901 * structure (pointed by 'ptr') and after that driver should be removable 1902 * with no ill consequences. 1903 * 1904 */ 1905static void __devexit usbvision_disconnect(struct usb_interface *intf) 1906{ 1907 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1908 1909 PDEBUG(DBG_PROBE, ""); 1910 1911 if (usbvision == NULL) { 1912 err("%s: usb_get_intfdata() failed", __FUNCTION__); 1913 return; 1914 } 1915 usb_set_intfdata (intf, NULL); 1916 1917 down(&usbvision->lock); 1918 1919 // At this time we ask to cancel outstanding URBs 1920 usbvision_stop_isoc(usbvision); 1921 1922 if (usbvision->power) { 1923 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 1924 usbvision_power_off(usbvision); 1925 } 1926 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1927 1928 usb_put_dev(usbvision->dev); 1929 usbvision->dev = NULL; // USB device is no more 1930 1931 up(&usbvision->lock); 1932 1933 if (usbvision->user) { 1934 printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__); 1935 wake_up_interruptible(&usbvision->wait_frame); 1936 wake_up_interruptible(&usbvision->wait_stream); 1937 } 1938 else { 1939 usbvision_release(usbvision); 1940 } 1941 1942 PDEBUG(DBG_PROBE, "success"); 1943 1944} 1945 1946static struct usb_driver usbvision_driver = { 1947 .name = "usbvision", 1948 .id_table = usbvision_table, 1949 .probe = usbvision_probe, 1950 .disconnect = usbvision_disconnect 1951}; 1952 1953/* 1954 * customdevice_process() 1955 * 1956 * This procedure preprocesses CustomDevice parameter if any 1957 * 1958 */ 1959static void customdevice_process(void) 1960{ 1961 usbvision_device_data[0]=usbvision_device_data[1]; 1962 usbvision_table[0]=usbvision_table[1]; 1963 1964 if(CustomDevice) 1965 { 1966 char *parse=CustomDevice; 1967 1968 PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice); 1969 1970 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1" 1971 usbvision_device_data[0].idVendor; 1972 usbvision_device_data[0].idProduct; 1973 usbvision_device_data[0].Interface; 1974 usbvision_device_data[0].Codec; 1975 usbvision_device_data[0].VideoChannels; 1976 usbvision_device_data[0].VideoNorm; 1977 usbvision_device_data[0].AudioChannels; 1978 usbvision_device_data[0].Radio; 1979 usbvision_device_data[0].Tuner; 1980 usbvision_device_data[0].TunerType; 1981 usbvision_device_data[0].Vin_Reg1; 1982 usbvision_device_data[0].Vin_Reg2; 1983 usbvision_device_data[0].X_Offset; 1984 usbvision_device_data[0].Y_Offset; 1985 usbvision_device_data[0].Dvi_yuv; 1986 usbvision_device_data[0].ModelString; 1987 */ 1988 1989 rmspace(parse); 1990 usbvision_device_data[0].ModelString="USBVISION Custom Device"; 1991 1992 parse+=2; 1993 sscanf(parse,"%x",&usbvision_device_data[0].idVendor); 1994 goto2next(parse); 1995 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor); 1996 parse+=2; 1997 sscanf(parse,"%x",&usbvision_device_data[0].idProduct); 1998 goto2next(parse); 1999 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct); 2000 sscanf(parse,"%d",&usbvision_device_data[0].Interface); 2001 goto2next(parse); 2002 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface); 2003 sscanf(parse,"%d",&usbvision_device_data[0].Codec); 2004 goto2next(parse); 2005 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec); 2006 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels); 2007 goto2next(parse); 2008 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels); 2009 2010 switch(*parse) 2011 { 2012 case 'P': 2013 PDEBUG(DBG_PROBE, "VideoNorm=PAL"); 2014 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; 2015 break; 2016 2017 case 'S': 2018 PDEBUG(DBG_PROBE, "VideoNorm=SECAM"); 2019 usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM; 2020 break; 2021 2022 case 'N': 2023 PDEBUG(DBG_PROBE, "VideoNorm=NTSC"); 2024 usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC; 2025 break; 2026 2027 default: 2028 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)"); 2029 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; 2030 break; 2031 } 2032 goto2next(parse); 2033 2034 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels); 2035 goto2next(parse); 2036 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels); 2037 sscanf(parse,"%d",&usbvision_device_data[0].Radio); 2038 goto2next(parse); 2039 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio); 2040 sscanf(parse,"%d",&usbvision_device_data[0].Tuner); 2041 goto2next(parse); 2042 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner); 2043 sscanf(parse,"%d",&usbvision_device_data[0].TunerType); 2044 goto2next(parse); 2045 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType); 2046 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1); 2047 goto2next(parse); 2048 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1); 2049 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2); 2050 goto2next(parse); 2051 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2); 2052 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset); 2053 goto2next(parse); 2054 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset); 2055 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset); 2056 goto2next(parse); 2057 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset); 2058 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv); 2059 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv); 2060 2061 //add to usbvision_table also 2062 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE; 2063 usbvision_table[0].idVendor=usbvision_device_data[0].idVendor; 2064 usbvision_table[0].idProduct=usbvision_device_data[0].idProduct; 2065 2066 } 2067} 2068 2069 2070 2071/* 2072 * usbvision_init() 2073 * 2074 * This code is run to initialize the driver. 2075 * 2076 */ 2077static int __init usbvision_init(void) 2078{ 2079 int errCode; 2080 2081 PDEBUG(DBG_PROBE, ""); 2082 2083 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); 2084 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 2085 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 2086 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 2087 2088 /* disable planar mode support unless compression enabled */ 2089 if (isocMode != ISOC_MODE_COMPRESS ) { 2090 // FIXME : not the right way to set supported flag 2091 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 2092 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 2093 } 2094 2095 customdevice_process(); 2096 2097 errCode = usb_register(&usbvision_driver); 2098 2099 if (errCode == 0) { 2100 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 2101 PDEBUG(DBG_PROBE, "success"); 2102 } 2103 return errCode; 2104} 2105 2106static void __exit usbvision_exit(void) 2107{ 2108 PDEBUG(DBG_PROBE, ""); 2109 2110 usb_deregister(&usbvision_driver); 2111 PDEBUG(DBG_PROBE, "success"); 2112} 2113 2114module_init(usbvision_init); 2115module_exit(usbvision_exit); 2116 2117/* 2118 * Overrides for Emacs so that we follow Linus's tabbing style. 2119 * --------------------------------------------------------------------------- 2120 * Local variables: 2121 * c-basic-offset: 8 2122 * End: 2123 */ 2124