usbvision-video.c revision f7ca6256bc1db4fb44adda99e082f8c80ada8957
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#include "usbvision-cards.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); 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); 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); 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); 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 scratch ring buffer */ 396 errCode = usbvision_scratch_alloc(usbvision); 397 if (isocMode==ISOC_MODE_COMPRESS) { 398 /* Allocate intermediate decompression buffers only if needed */ 399 errCode = usbvision_decompress_alloc(usbvision); 400 } 401 if (errCode) { 402 /* Deallocate all buffers if trouble */ 403 usbvision_scratch_free(usbvision); 404 usbvision_decompress_free(usbvision); 405 } 406 } 407 408 /* If so far no errors then we shall start the camera */ 409 if (!errCode) { 410 down(&usbvision->lock); 411 if (usbvision->power == 0) { 412 usbvision_power_on(usbvision); 413 usbvision_init_i2c(usbvision); 414 } 415 416 /* Send init sequence only once, it's large! */ 417 if (!usbvision->initialized) { 418 int setup_ok = 0; 419 setup_ok = usbvision_setup(usbvision,isocMode); 420 if (setup_ok) 421 usbvision->initialized = 1; 422 else 423 errCode = -EBUSY; 424 } 425 426 if (!errCode) { 427 usbvision_begin_streaming(usbvision); 428 errCode = usbvision_init_isoc(usbvision); 429 /* device needs to be initialized before isoc transfer */ 430 usbvision_muxsel(usbvision,0); 431 usbvision->user++; 432 } 433 else { 434 if (PowerOnAtOpen) { 435 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 436 usbvision_power_off(usbvision); 437 usbvision->initialized = 0; 438 } 439 } 440 up(&usbvision->lock); 441 } 442 443 if (errCode) { 444 } 445 446 /* prepare queues */ 447 usbvision_empty_framequeues(usbvision); 448 449 PDEBUG(DBG_IO, "success"); 450 return errCode; 451} 452 453/* 454 * usbvision_v4l2_close() 455 * 456 * This is part of Video 4 Linux API. The procedure 457 * stops streaming and deallocates all buffers that were earlier 458 * allocated in usbvision_v4l2_open(). 459 * 460 */ 461static int usbvision_v4l2_close(struct inode *inode, struct file *file) 462{ 463 struct video_device *dev = video_devdata(file); 464 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 465 466 PDEBUG(DBG_IO, "close"); 467 down(&usbvision->lock); 468 469 usbvision_audio_off(usbvision); 470 usbvision_restart_isoc(usbvision); 471 usbvision_stop_isoc(usbvision); 472 473 usbvision_decompress_free(usbvision); 474 usbvision_frames_free(usbvision); 475 usbvision_empty_framequeues(usbvision); 476 usbvision_scratch_free(usbvision); 477 478 usbvision->user--; 479 480 if (PowerOnAtOpen) { 481 /* power off in a little while to avoid off/on every close/open short sequences */ 482 usbvision_set_powerOffTimer(usbvision); 483 usbvision->initialized = 0; 484 } 485 486 up(&usbvision->lock); 487 488 if (usbvision->remove_pending) { 489 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 490 usbvision_release(usbvision); 491 } 492 493 PDEBUG(DBG_IO, "success"); 494 495 496 return 0; 497} 498 499 500/* 501 * usbvision_ioctl() 502 * 503 * This is part of Video 4 Linux API. The procedure handles ioctl() calls. 504 * 505 */ 506static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file, 507 unsigned int cmd, void *arg) 508{ 509 struct video_device *dev = video_devdata(file); 510 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 511 512 if (!USBVISION_IS_OPERATIONAL(usbvision)) 513 return -EFAULT; 514 515 switch (cmd) { 516 517#ifdef CONFIG_VIDEO_ADV_DEBUG 518 /* ioctls to allow direct acces to the NT100x registers */ 519 case VIDIOC_DBG_G_REGISTER: 520 case VIDIOC_DBG_S_REGISTER: 521 { 522 struct v4l2_register *reg = arg; 523 int errCode; 524 525 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 526 return -EINVAL; 527 if (!capable(CAP_SYS_ADMIN)) 528 return -EPERM; 529 /* NT100x has a 8-bit register space */ 530 if (cmd == VIDIOC_DBG_G_REGISTER) 531 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 532 else 533 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 534 if (errCode < 0) { 535 err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__, 536 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode); 537 return errCode; 538 } 539 if (cmd == VIDIOC_DBG_S_REGISTER) 540 reg->val = (u8)errCode; 541 542 PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X", 543 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', 544 (unsigned int)reg->reg, (unsigned int)reg->val); 545 return 0; 546 } 547#endif 548 case VIDIOC_QUERYCAP: 549 { 550 struct v4l2_capability *vc=arg; 551 552 memset(vc, 0, sizeof(*vc)); 553 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 554 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 555 sizeof(vc->card)); 556 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 557 sizeof(vc->bus_info)); 558 vc->version = USBVISION_DRIVER_VERSION; 559 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 560 V4L2_CAP_AUDIO | 561 V4L2_CAP_READWRITE | 562 V4L2_CAP_STREAMING | 563 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 564 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP"); 565 return 0; 566 } 567 case VIDIOC_ENUMINPUT: 568 { 569 struct v4l2_input *vi = arg; 570 int chan; 571 572 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 573 return -EINVAL; 574 if (usbvision->have_tuner) { 575 chan = vi->index; 576 } 577 else { 578 chan = vi->index + 1; //skip Television string 579 } 580 switch(chan) { 581 case 0: 582 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 583 strcpy(vi->name, "White Video Input"); 584 } 585 else { 586 strcpy(vi->name, "Television"); 587 vi->type = V4L2_INPUT_TYPE_TUNER; 588 vi->audioset = 1; 589 vi->tuner = chan; 590 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM; 591 } 592 break; 593 case 1: 594 vi->type = V4L2_INPUT_TYPE_CAMERA; 595 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 596 strcpy(vi->name, "Green Video Input"); 597 } 598 else { 599 strcpy(vi->name, "Composite Video Input"); 600 } 601 vi->std = V4L2_STD_PAL; 602 break; 603 case 2: 604 vi->type = V4L2_INPUT_TYPE_CAMERA; 605 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 606 strcpy(vi->name, "Yellow Video Input"); 607 } 608 else { 609 strcpy(vi->name, "S-Video Input"); 610 } 611 vi->std = V4L2_STD_PAL; 612 break; 613 case 3: 614 vi->type = V4L2_INPUT_TYPE_CAMERA; 615 strcpy(vi->name, "Red Video Input"); 616 vi->std = V4L2_STD_PAL; 617 break; 618 } 619 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x", 620 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std); 621 return 0; 622 } 623 case VIDIOC_ENUMSTD: 624 { 625 struct v4l2_standard *e = arg; 626 unsigned int i; 627 int ret; 628 629 i = e->index; 630 if (i >= TVNORMS) 631 return -EINVAL; 632 ret = v4l2_video_std_construct(e, tvnorms[e->index].id, 633 tvnorms[e->index].name); 634 e->index = i; 635 if (ret < 0) 636 return ret; 637 return 0; 638 } 639 case VIDIOC_G_INPUT: 640 { 641 int *input = arg; 642 *input = usbvision->ctl_input; 643 return 0; 644 } 645 case VIDIOC_S_INPUT: 646 { 647 int *input = arg; 648 if ((*input >= usbvision->video_inputs) || (*input < 0) ) 649 return -EINVAL; 650 usbvision->ctl_input = *input; 651 652 down(&usbvision->lock); 653 usbvision_muxsel(usbvision, usbvision->ctl_input); 654 usbvision_set_input(usbvision); 655 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight); 656 up(&usbvision->lock); 657 return 0; 658 } 659 case VIDIOC_G_STD: 660 { 661 v4l2_std_id *id = arg; 662 663 *id = usbvision->tvnorm->id; 664 665 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name); 666 return 0; 667 } 668 case VIDIOC_S_STD: 669 { 670 v4l2_std_id *id = arg; 671 unsigned int i; 672 673 for (i = 0; i < TVNORMS; i++) 674 if (*id == tvnorms[i].id) 675 break; 676 if (i == TVNORMS) 677 for (i = 0; i < TVNORMS; i++) 678 if (*id & tvnorms[i].id) 679 break; 680 if (i == TVNORMS) 681 return -EINVAL; 682 683 down(&usbvision->lock); 684 usbvision->tvnorm = &tvnorms[i]; 685 686 call_i2c_clients(usbvision, VIDIOC_S_STD, 687 &usbvision->tvnorm->id); 688 689 up(&usbvision->lock); 690 691 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name); 692 return 0; 693 } 694 case VIDIOC_G_TUNER: 695 { 696 struct v4l2_tuner *vt = arg; 697 698 if (!usbvision->have_tuner || vt->index) // Only tuner 0 699 return -EINVAL; 700 strcpy(vt->name, "Television"); 701 /* Let clients fill in the remainder of this struct */ 702 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 703 704 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc); 705 return 0; 706 } 707 case VIDIOC_S_TUNER: 708 { 709 struct v4l2_tuner *vt = arg; 710 711 // Only no or one tuner for now 712 if (!usbvision->have_tuner || vt->index) 713 return -EINVAL; 714 /* let clients handle this */ 715 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 716 717 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER"); 718 return 0; 719 } 720 case VIDIOC_G_FREQUENCY: 721 { 722 struct v4l2_frequency *freq = arg; 723 724 freq->tuner = 0; // Only one tuner 725 freq->type = V4L2_TUNER_ANALOG_TV; 726 freq->frequency = usbvision->freq; 727 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 728 return 0; 729 } 730 case VIDIOC_S_FREQUENCY: 731 { 732 struct v4l2_frequency *freq = arg; 733 734 // Only no or one tuner for now 735 if (!usbvision->have_tuner || freq->tuner) 736 return -EINVAL; 737 738 usbvision->freq = freq->frequency; 739 call_i2c_clients(usbvision, cmd, freq); 740 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency); 741 return 0; 742 } 743 case VIDIOC_G_AUDIO: 744 { 745 struct v4l2_audio *v = arg; 746 memset(v,0, sizeof(v)); 747 strcpy(v->name, "TV"); 748 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO"); 749 return 0; 750 } 751 case VIDIOC_S_AUDIO: 752 { 753 struct v4l2_audio *v = arg; 754 if(v->index) { 755 return -EINVAL; 756 } 757 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO"); 758 return 0; 759 } 760 case VIDIOC_QUERYCTRL: 761 { 762 struct v4l2_queryctrl *ctrl = arg; 763 int id=ctrl->id; 764 765 memset(ctrl,0,sizeof(*ctrl)); 766 ctrl->id=id; 767 768 call_i2c_clients(usbvision, cmd, arg); 769 770 if (ctrl->type) 771 return 0; 772 else 773 return -EINVAL; 774 775 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 776 } 777 case VIDIOC_G_CTRL: 778 { 779 struct v4l2_control *ctrl = arg; 780 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 781 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 782 return 0; 783 } 784 case VIDIOC_S_CTRL: 785 { 786 struct v4l2_control *ctrl = arg; 787 788 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 789 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 790 return 0; 791 } 792 case VIDIOC_REQBUFS: 793 { 794 struct v4l2_requestbuffers *vr = arg; 795 int ret; 796 797 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 798 799 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method. 800 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 801 (vr->memory != V4L2_MEMORY_MMAP)) 802 return -EINVAL; 803 804 if(usbvision->streaming == Stream_On) { 805 if ((ret = usbvision_stream_interrupt(usbvision))) 806 return ret; 807 } 808 809 usbvision_frames_free(usbvision); 810 usbvision_empty_framequeues(usbvision); 811 vr->count = usbvision_frames_alloc(usbvision,vr->count); 812 813 usbvision->curFrame = NULL; 814 815 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count); 816 return 0; 817 } 818 case VIDIOC_QUERYBUF: 819 { 820 struct v4l2_buffer *vb = arg; 821 struct usbvision_frame *frame; 822 823 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called) 824 825 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 826 return -EINVAL; 827 } 828 if(vb->index>=usbvision->num_frames) { 829 return -EINVAL; 830 } 831 // Updating the corresponding frame state 832 vb->flags = 0; 833 frame = &usbvision->frame[vb->index]; 834 if(frame->grabstate >= FrameState_Ready) 835 vb->flags |= V4L2_BUF_FLAG_QUEUED; 836 if(frame->grabstate >= FrameState_Done) 837 vb->flags |= V4L2_BUF_FLAG_DONE; 838 if(frame->grabstate == FrameState_Unused) 839 vb->flags |= V4L2_BUF_FLAG_MAPPED; 840 vb->memory = V4L2_MEMORY_MMAP; 841 842 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 843 844 vb->memory = V4L2_MEMORY_MMAP; 845 vb->field = V4L2_FIELD_NONE; 846 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel; 847 vb->timestamp = usbvision->frame[vb->index].timestamp; 848 vb->sequence = usbvision->frame[vb->index].sequence; 849 return 0; 850 } 851 case VIDIOC_QBUF: 852 { 853 struct v4l2_buffer *vb = arg; 854 struct usbvision_frame *frame; 855 unsigned long lock_flags; 856 857 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP. 858 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 859 return -EINVAL; 860 } 861 if(vb->index>=usbvision->num_frames) { 862 return -EINVAL; 863 } 864 865 frame = &usbvision->frame[vb->index]; 866 867 if (frame->grabstate != FrameState_Unused) { 868 return -EAGAIN; 869 } 870 871 /* Mark it as ready and enqueue frame */ 872 frame->grabstate = FrameState_Ready; 873 frame->scanstate = ScanState_Scanning; 874 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 875 876 vb->flags &= ~V4L2_BUF_FLAG_DONE; 877 878 /* set v4l2_format index */ 879 frame->v4l2_format = usbvision->palette; 880 881 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 882 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 883 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 884 885 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index); 886 return 0; 887 } 888 case VIDIOC_DQBUF: 889 { 890 struct v4l2_buffer *vb = arg; 891 int ret; 892 struct usbvision_frame *f; 893 unsigned long lock_flags; 894 895 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 896 return -EINVAL; 897 898 if (list_empty(&(usbvision->outqueue))) { 899 if (usbvision->streaming == Stream_Idle) 900 return -EINVAL; 901 ret = wait_event_interruptible 902 (usbvision->wait_frame, 903 !list_empty(&(usbvision->outqueue))); 904 if (ret) 905 return ret; 906 } 907 908 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 909 f = list_entry(usbvision->outqueue.next, 910 struct usbvision_frame, frame); 911 list_del(usbvision->outqueue.next); 912 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 913 914 f->grabstate = FrameState_Unused; 915 916 vb->memory = V4L2_MEMORY_MMAP; 917 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE; 918 vb->index = f->index; 919 vb->sequence = f->sequence; 920 vb->timestamp = f->timestamp; 921 vb->field = V4L2_FIELD_NONE; 922 vb->bytesused = f->scanlength; 923 924 return 0; 925 } 926 case VIDIOC_STREAMON: 927 { 928 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 929 930 usbvision->streaming = Stream_On; 931 932 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 933 934 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON"); 935 936 return 0; 937 } 938 case VIDIOC_STREAMOFF: 939 { 940 int *type = arg; 941 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 942 943 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 944 return -EINVAL; 945 946 if(usbvision->streaming == Stream_On) { 947 usbvision_stream_interrupt(usbvision); 948 // Stop all video streamings 949 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 950 } 951 usbvision_empty_framequeues(usbvision); 952 953 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF"); 954 return 0; 955 } 956 case VIDIOC_ENUM_FMT: 957 { 958 struct v4l2_fmtdesc *vfd = arg; 959 960 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 961 return -EINVAL; 962 } 963 vfd->flags = 0; 964 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 965 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 966 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 967 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 968 return 0; 969 } 970 case VIDIOC_G_FMT: 971 { 972 struct v4l2_format *vf = arg; 973 974 switch (vf->type) { 975 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 976 { 977 vf->fmt.pix.width = usbvision->curwidth; 978 vf->fmt.pix.height = usbvision->curheight; 979 vf->fmt.pix.pixelformat = usbvision->palette.format; 980 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel; 981 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 982 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 983 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 984 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s", 985 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 986 return 0; 987 } 988 default: 989 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type); 990 return -EINVAL; 991 } 992 return 0; 993 } 994 case VIDIOC_TRY_FMT: 995 case VIDIOC_S_FMT: 996 { 997 struct v4l2_format *vf = arg; 998 int formatIdx,ret; 999 1000 switch(vf->type) { 1001 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 1002 { 1003 /* Find requested format in available ones */ 1004 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 1005 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) { 1006 usbvision->palette = usbvision_v4l2_format[formatIdx]; 1007 break; 1008 } 1009 } 1010 /* robustness */ 1011 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 1012 return -EINVAL; 1013 } 1014 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 1015 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 1016 1017 vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel; 1018 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 1019 1020 if(cmd == VIDIOC_TRY_FMT) { 1021 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s", 1022 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1023 return 0; 1024 } 1025 1026 /* stop io in case it is already in progress */ 1027 if(usbvision->streaming == Stream_On) { 1028 if ((ret = usbvision_stream_interrupt(usbvision))) 1029 return ret; 1030 } 1031 usbvision_frames_free(usbvision); 1032 usbvision_empty_framequeues(usbvision); 1033 1034 usbvision->curFrame = NULL; 1035 1036 // by now we are committed to the new data... 1037 down(&usbvision->lock); 1038 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1039 up(&usbvision->lock); 1040 1041 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s", 1042 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc); 1043 return 0; 1044 } 1045 default: 1046 return -EINVAL; 1047 } 1048 } 1049 default: 1050 return -ENOIOCTLCMD; 1051 } 1052 return 0; 1053} 1054 1055static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file, 1056 unsigned int cmd, unsigned long arg) 1057{ 1058 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl); 1059} 1060 1061 1062static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1063 size_t count, loff_t *ppos) 1064{ 1065 struct video_device *dev = video_devdata(file); 1066 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1067 int noblock = file->f_flags & O_NONBLOCK; 1068 unsigned long lock_flags; 1069 1070 int ret,i; 1071 struct usbvision_frame *frame; 1072 1073 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock); 1074 1075 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1076 return -EFAULT; 1077 1078 /* This entry point is compatible with the mmap routines so that a user can do either 1079 VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */ 1080 if(!usbvision->num_frames) { 1081 /* First, allocate some frames to work with if this has not been done with 1082 VIDIOC_REQBUF */ 1083 usbvision_frames_free(usbvision); 1084 usbvision_empty_framequeues(usbvision); 1085 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1086 } 1087 1088 if(usbvision->streaming != Stream_On) { 1089 /* no stream is running, make it running ! */ 1090 usbvision->streaming = Stream_On; 1091 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1092 } 1093 1094 /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */ 1095 for(i=0;i<usbvision->num_frames;i++) { 1096 frame = &usbvision->frame[i]; 1097 if(frame->grabstate == FrameState_Unused) { 1098 /* Mark it as ready and enqueue frame */ 1099 frame->grabstate = FrameState_Ready; 1100 frame->scanstate = ScanState_Scanning; 1101 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 1102 1103 /* set v4l2_format index */ 1104 frame->v4l2_format = usbvision->palette; 1105 1106 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1107 list_add_tail(&frame->frame, &usbvision->inqueue); 1108 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1109 } 1110 } 1111 1112 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1113 if (list_empty(&(usbvision->outqueue))) { 1114 if(noblock) 1115 return -EAGAIN; 1116 1117 ret = wait_event_interruptible 1118 (usbvision->wait_frame, 1119 !list_empty(&(usbvision->outqueue))); 1120 if (ret) 1121 return ret; 1122 } 1123 1124 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1125 frame = list_entry(usbvision->outqueue.next, 1126 struct usbvision_frame, frame); 1127 list_del(usbvision->outqueue.next); 1128 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1129 1130 /* An error returns an empty frame */ 1131 if (frame->grabstate == FrameState_Error) { 1132 frame->bytes_read = 0; 1133 return 0; 1134 } 1135 1136 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__, 1137 frame->index, frame->bytes_read, frame->scanlength); 1138 1139 /* copy bytes to user space; we allow for partials reads */ 1140 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1141 count = frame->scanlength - frame->bytes_read; 1142 1143 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1144 return -EFAULT; 1145 } 1146 1147 frame->bytes_read += count; 1148 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__, 1149 (unsigned long)count, frame->bytes_read); 1150 1151 // For now, forget the frame if it has not been read in one shot. 1152/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1153 frame->bytes_read = 0; 1154 1155 /* Mark it as available to be used again. */ 1156 frame->grabstate = FrameState_Unused; 1157/* } */ 1158 1159 return count; 1160} 1161 1162static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1163{ 1164 unsigned long size = vma->vm_end - vma->vm_start, 1165 start = vma->vm_start; 1166 void *pos; 1167 u32 i; 1168 1169 struct video_device *dev = video_devdata(file); 1170 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1171 1172 PDEBUG(DBG_MMAP, "mmap"); 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->max_frame_size)) { 1183 up(&usbvision->lock); 1184 return -EINVAL; 1185 } 1186 1187 for (i = 0; i < usbvision->num_frames; i++) { 1188 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff) 1189 break; 1190 } 1191 if (i == usbvision->num_frames) { 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 /* Alternate interface 1 is is the biggest frame size */ 1248 errCode = usbvision_set_alternate(usbvision); 1249 if (errCode < 0) { 1250 usbvision->last_error = errCode; 1251 return -EBUSY; 1252 } 1253 1254 // If so far no errors then we shall start the radio 1255 usbvision->radio = 1; 1256 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); 1257 freq.frequency = 1517; //SWR3 @ 94.8MHz 1258 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq); 1259 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1260 usbvision->user++; 1261 } 1262 1263 if (errCode) { 1264 if (PowerOnAtOpen) { 1265 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 1266 usbvision_power_off(usbvision); 1267 usbvision->initialized = 0; 1268 } 1269 } 1270 up(&usbvision->lock); 1271 return errCode; 1272} 1273 1274 1275static int usbvision_radio_close(struct inode *inode, struct file *file) 1276{ 1277 struct video_device *dev = video_devdata(file); 1278 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1279 int errCode = 0; 1280 1281 PDEBUG(DBG_IO, ""); 1282 1283 down(&usbvision->lock); 1284 1285 /* Set packet size to 0 */ 1286 usbvision->ifaceAlt=0; 1287 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1288 usbvision->ifaceAlt); 1289 1290 usbvision_audio_off(usbvision); 1291 usbvision->radio=0; 1292 usbvision->user--; 1293 1294 if (PowerOnAtOpen) { 1295 usbvision_set_powerOffTimer(usbvision); 1296 usbvision->initialized = 0; 1297 } 1298 1299 up(&usbvision->lock); 1300 1301 if (usbvision->remove_pending) { 1302 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__); 1303 usbvision_release(usbvision); 1304 } 1305 1306 1307 PDEBUG(DBG_IO, "success"); 1308 1309 return errCode; 1310} 1311 1312static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file, 1313 unsigned int cmd, void *arg) 1314{ 1315 struct video_device *dev = video_devdata(file); 1316 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev); 1317 1318 if (!USBVISION_IS_OPERATIONAL(usbvision)) 1319 return -EIO; 1320 1321 switch (cmd) { 1322 case VIDIOC_QUERYCAP: 1323 { 1324 struct v4l2_capability *vc=arg; 1325 1326 memset(vc, 0, sizeof(*vc)); 1327 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 1328 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString, 1329 sizeof(vc->card)); 1330 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 1331 sizeof(vc->bus_info)); 1332 vc->version = USBVISION_DRIVER_VERSION; 1333 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 1334 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP"); 1335 return 0; 1336 } 1337 case VIDIOC_QUERYCTRL: 1338 { 1339 struct v4l2_queryctrl *ctrl = arg; 1340 int id=ctrl->id; 1341 1342 memset(ctrl,0,sizeof(*ctrl)); 1343 ctrl->id=id; 1344 1345 call_i2c_clients(usbvision, cmd, arg); 1346 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type); 1347 1348 if (ctrl->type) 1349 return 0; 1350 else 1351 return -EINVAL; 1352 1353 } 1354 case VIDIOC_G_CTRL: 1355 { 1356 struct v4l2_control *ctrl = arg; 1357 1358 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 1359 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1360 return 0; 1361 } 1362 case VIDIOC_S_CTRL: 1363 { 1364 struct v4l2_control *ctrl = arg; 1365 1366 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 1367 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value); 1368 return 0; 1369 } 1370 case VIDIOC_G_TUNER: 1371 { 1372 struct v4l2_tuner *t = arg; 1373 1374 if (t->index > 0) 1375 return -EINVAL; 1376 1377 memset(t,0,sizeof(*t)); 1378 strcpy(t->name, "Radio"); 1379 t->type = V4L2_TUNER_RADIO; 1380 1381 /* Let clients fill in the remainder of this struct */ 1382 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t); 1383 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc); 1384 return 0; 1385 } 1386 case VIDIOC_S_TUNER: 1387 { 1388 struct v4l2_tuner *vt = arg; 1389 1390 // Only no or one tuner for now 1391 if (!usbvision->have_tuner || vt->index) 1392 return -EINVAL; 1393 /* let clients handle this */ 1394 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 1395 1396 PDEBUG(DBG_IO, "VIDIOC_S_TUNER"); 1397 return 0; 1398 } 1399 case VIDIOC_G_AUDIO: 1400 { 1401 struct v4l2_audio *a = arg; 1402 1403 memset(a,0,sizeof(*a)); 1404 strcpy(a->name,"Radio"); 1405 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO"); 1406 return 0; 1407 } 1408 case VIDIOC_S_AUDIO: 1409 case VIDIOC_S_INPUT: 1410 case VIDIOC_S_STD: 1411 return 0; 1412 1413 case VIDIOC_G_FREQUENCY: 1414 { 1415 struct v4l2_frequency *f = arg; 1416 1417 memset(f,0,sizeof(*f)); 1418 1419 f->type = V4L2_TUNER_RADIO; 1420 f->frequency = usbvision->freq; 1421 call_i2c_clients(usbvision, cmd, f); 1422 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1423 1424 return 0; 1425 } 1426 case VIDIOC_S_FREQUENCY: 1427 { 1428 struct v4l2_frequency *f = arg; 1429 1430 if (f->tuner != 0) 1431 return -EINVAL; 1432 usbvision->freq = f->frequency; 1433 call_i2c_clients(usbvision, cmd, f); 1434 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency); 1435 1436 return 0; 1437 } 1438 default: 1439 { 1440 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd); 1441 return -ENOIOCTLCMD; 1442 } 1443 } 1444 return 0; 1445} 1446 1447 1448static int usbvision_radio_ioctl(struct inode *inode, struct file *file, 1449 unsigned int cmd, unsigned long arg) 1450{ 1451 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl); 1452} 1453 1454 1455/* 1456 * Here comes the stuff for vbi on usbvision based devices 1457 * 1458 */ 1459static int usbvision_vbi_open(struct inode *inode, struct file *file) 1460{ 1461 /* TODO */ 1462 return -EINVAL; 1463 1464} 1465 1466static int usbvision_vbi_close(struct inode *inode, struct file *file) 1467{ 1468 /* TODO */ 1469 return -EINVAL; 1470} 1471 1472static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, 1473 unsigned int cmd, void *arg) 1474{ 1475 /* TODO */ 1476 return -EINVAL; 1477} 1478 1479static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1480 unsigned int cmd, unsigned long arg) 1481{ 1482 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); 1483} 1484 1485 1486// 1487// Video registration stuff 1488// 1489 1490// Video template 1491static const struct file_operations usbvision_fops = { 1492 .owner = THIS_MODULE, 1493 .open = usbvision_v4l2_open, 1494 .release = usbvision_v4l2_close, 1495 .read = usbvision_v4l2_read, 1496 .mmap = usbvision_v4l2_mmap, 1497 .ioctl = usbvision_v4l2_ioctl, 1498 .llseek = no_llseek, 1499}; 1500static struct video_device usbvision_video_template = { 1501 .owner = THIS_MODULE, 1502 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE, 1503 .hardware = VID_HARDWARE_USBVISION, 1504 .fops = &usbvision_fops, 1505 .name = "usbvision-video", 1506 .release = video_device_release, 1507 .minor = -1, 1508}; 1509 1510 1511// Radio template 1512static const struct file_operations usbvision_radio_fops = { 1513 .owner = THIS_MODULE, 1514 .open = usbvision_radio_open, 1515 .release = usbvision_radio_close, 1516 .ioctl = usbvision_radio_ioctl, 1517 .llseek = no_llseek, 1518}; 1519 1520static struct video_device usbvision_radio_template= 1521{ 1522 .owner = THIS_MODULE, 1523 .type = VID_TYPE_TUNER, 1524 .hardware = VID_HARDWARE_USBVISION, 1525 .fops = &usbvision_radio_fops, 1526 .release = video_device_release, 1527 .name = "usbvision-radio", 1528 .minor = -1, 1529}; 1530 1531 1532// vbi template 1533static const struct file_operations usbvision_vbi_fops = { 1534 .owner = THIS_MODULE, 1535 .open = usbvision_vbi_open, 1536 .release = usbvision_vbi_close, 1537 .ioctl = usbvision_vbi_ioctl, 1538 .llseek = no_llseek, 1539}; 1540 1541static struct video_device usbvision_vbi_template= 1542{ 1543 .owner = THIS_MODULE, 1544 .type = VID_TYPE_TUNER, 1545 .hardware = VID_HARDWARE_USBVISION, 1546 .fops = &usbvision_vbi_fops, 1547 .release = video_device_release, 1548 .name = "usbvision-vbi", 1549 .minor = -1, 1550}; 1551 1552 1553static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1554 struct video_device *vdev_template, 1555 char *name) 1556{ 1557 struct usb_device *usb_dev = usbvision->dev; 1558 struct video_device *vdev; 1559 1560 if (usb_dev == NULL) { 1561 err("%s: usbvision->dev is not set", __FUNCTION__); 1562 return NULL; 1563 } 1564 1565 vdev = video_device_alloc(); 1566 if (NULL == vdev) { 1567 return NULL; 1568 } 1569 *vdev = *vdev_template; 1570// vdev->minor = -1; 1571 vdev->dev = &usb_dev->dev; 1572 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1573 video_set_drvdata(vdev, usbvision); 1574 return vdev; 1575} 1576 1577// unregister video4linux devices 1578static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1579{ 1580 // vbi Device: 1581 if (usbvision->vbi) { 1582 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f); 1583 if (usbvision->vbi->minor != -1) { 1584 video_unregister_device(usbvision->vbi); 1585 } 1586 else { 1587 video_device_release(usbvision->vbi); 1588 } 1589 usbvision->vbi = NULL; 1590 } 1591 1592 // Radio Device: 1593 if (usbvision->rdev) { 1594 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f); 1595 if (usbvision->rdev->minor != -1) { 1596 video_unregister_device(usbvision->rdev); 1597 } 1598 else { 1599 video_device_release(usbvision->rdev); 1600 } 1601 usbvision->rdev = NULL; 1602 } 1603 1604 // Video Device: 1605 if (usbvision->vdev) { 1606 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f); 1607 if (usbvision->vdev->minor != -1) { 1608 video_unregister_device(usbvision->vdev); 1609 } 1610 else { 1611 video_device_release(usbvision->vdev); 1612 } 1613 usbvision->vdev = NULL; 1614 } 1615} 1616 1617// register video4linux devices 1618static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1619{ 1620 // Video Device: 1621 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video"); 1622 if (usbvision->vdev == NULL) { 1623 goto err_exit; 1624 } 1625 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) { 1626 goto err_exit; 1627 } 1628 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f); 1629 1630 // Radio Device: 1631 if (usbvision_device_data[usbvision->DevModel].Radio) { 1632 // usbvision has radio 1633 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio"); 1634 if (usbvision->rdev == NULL) { 1635 goto err_exit; 1636 } 1637 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) { 1638 goto err_exit; 1639 } 1640 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f); 1641 } 1642 // vbi Device: 1643 if (usbvision_device_data[usbvision->DevModel].vbi) { 1644 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI"); 1645 if (usbvision->vdev == NULL) { 1646 goto err_exit; 1647 } 1648 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) { 1649 goto err_exit; 1650 } 1651 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f); 1652 } 1653 // all done 1654 return 0; 1655 1656 err_exit: 1657 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1658 usbvision_unregister_video(usbvision); 1659 return -1; 1660} 1661 1662/* 1663 * usbvision_alloc() 1664 * 1665 * This code allocates the struct usb_usbvision. It is filled with default values. 1666 * 1667 * Returns NULL on error, a pointer to usb_usbvision else. 1668 * 1669 */ 1670static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1671{ 1672 struct usb_usbvision *usbvision; 1673 1674 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) { 1675 goto err_exit; 1676 } 1677 1678 usbvision->dev = dev; 1679 1680 init_MUTEX(&usbvision->lock); /* to 1 == available */ 1681 1682 // prepare control urb for control messages during interrupts 1683 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1684 if (usbvision->ctrlUrb == NULL) { 1685 goto err_exit; 1686 } 1687 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1688 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */ 1689 1690 usbvision_init_powerOffTimer(usbvision); 1691 1692 return usbvision; 1693 1694err_exit: 1695 if (usbvision && usbvision->ctrlUrb) { 1696 usb_free_urb(usbvision->ctrlUrb); 1697 } 1698 if (usbvision) { 1699 kfree(usbvision); 1700 } 1701 return NULL; 1702} 1703 1704/* 1705 * usbvision_release() 1706 * 1707 * This code does final release of struct usb_usbvision. This happens 1708 * after the device is disconnected -and- all clients closed their files. 1709 * 1710 */ 1711static void usbvision_release(struct usb_usbvision *usbvision) 1712{ 1713 PDEBUG(DBG_PROBE, ""); 1714 1715 down(&usbvision->lock); 1716 1717 usbvision_reset_powerOffTimer(usbvision); 1718 1719 usbvision->initialized = 0; 1720 1721 up(&usbvision->lock); 1722 1723 usbvision_remove_sysfs(usbvision->vdev); 1724 usbvision_unregister_video(usbvision); 1725 1726 if (usbvision->ctrlUrb) { 1727 usb_free_urb(usbvision->ctrlUrb); 1728 } 1729 1730 kfree(usbvision); 1731 1732 PDEBUG(DBG_PROBE, "success"); 1733} 1734 1735 1736/******************************** usb interface *****************************************/ 1737 1738static void usbvision_configure_video(struct usb_usbvision *usbvision) 1739{ 1740 int model,i; 1741 1742 if (usbvision == NULL) 1743 return; 1744 1745 model = usbvision->DevModel; 1746 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1747 1748 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) { 1749 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff; 1750 } else { 1751 usbvision->Vin_Reg2_Preset = 0; 1752 } 1753 1754 for (i = 0; i < TVNORMS; i++) 1755 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode) 1756 break; 1757 if (i == TVNORMS) 1758 i = 0; 1759 usbvision->tvnorm = &tvnorms[i]; /* set default norm */ 1760 1761 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1762 usbvision->ctl_input = 0; 1763 1764 /* This should be here to make i2c clients to be able to register */ 1765 usbvision_audio_off(usbvision); //first switch off audio 1766 if (!PowerOnAtOpen) { 1767 usbvision_power_on(usbvision); //and then power up the noisy tuner 1768 usbvision_init_i2c(usbvision); 1769 } 1770} 1771 1772/* 1773 * usbvision_probe() 1774 * 1775 * This procedure queries device descriptor and accepts the interface 1776 * if it looks like USBVISION video device 1777 * 1778 */ 1779static int __devinit usbvision_probe(struct usb_interface *intf, 1780 const struct usb_device_id *devid) 1781{ 1782 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1783 struct usb_interface *uif; 1784 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1785 const struct usb_host_interface *interface; 1786 struct usb_usbvision *usbvision = NULL; 1787 const struct usb_endpoint_descriptor *endpoint; 1788 int model,i; 1789 1790 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1791 dev->descriptor.idVendor, 1792 dev->descriptor.idProduct, ifnum); 1793 1794 model = devid->driver_info; 1795 printk(KERN_INFO "%s: %s found\n", __FUNCTION__, 1796 usbvision_device_data[model].ModelString); 1797 1798 if (usbvision_device_data[model].Interface >= 0) { 1799 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1800 } 1801 else { 1802 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1803 } 1804 endpoint = &interface->endpoint[1].desc; 1805 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) { 1806 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum); 1807 err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes); 1808 return -ENODEV; 1809 } 1810 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) { 1811 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum); 1812 return -ENODEV; 1813 } 1814 1815 usb_get_dev(dev); 1816 1817 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1818 err("%s: couldn't allocate USBVision struct", __FUNCTION__); 1819 return -ENOMEM; 1820 } 1821 1822 if (dev->descriptor.bNumConfigurations > 1) { 1823 usbvision->bridgeType = BRIDGE_NT1004; 1824 } 1825 else if (model == DAZZLE_DVC_90_REV_1_SECAM) { 1826 usbvision->bridgeType = BRIDGE_NT1005; 1827 } 1828 else { 1829 usbvision->bridgeType = BRIDGE_NT1003; 1830 } 1831 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1832 1833 down(&usbvision->lock); 1834 1835 /* compute alternate max packet sizes */ 1836 uif = dev->actconfig->interface[0]; 1837 1838 usbvision->num_alt=uif->num_altsetting; 1839 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1840 usbvision->alt_max_pkt_size = kmalloc(32* 1841 usbvision->num_alt,GFP_KERNEL); 1842 if (usbvision->alt_max_pkt_size == NULL) { 1843 err("usbvision: out of memory!\n"); 1844 return -ENOMEM; 1845 } 1846 1847 for (i = 0; i < usbvision->num_alt ; i++) { 1848 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1849 wMaxPacketSize); 1850 usbvision->alt_max_pkt_size[i] = 1851 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1852 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1853 usbvision->alt_max_pkt_size[i]); 1854 } 1855 1856 1857 usbvision->nr = usbvision_nr++; 1858 1859 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1860 if (usbvision->have_tuner) { 1861 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1862 } 1863 1864 usbvision->tuner_addr = ADDR_UNSET; 1865 1866 usbvision->DevModel = model; 1867 usbvision->remove_pending = 0; 1868 usbvision->iface = ifnum; 1869 usbvision->ifaceAlt = 0; 1870 usbvision->video_endp = endpoint->bEndpointAddress; 1871 usbvision->isocPacketSize = 0; 1872 usbvision->usb_bandwidth = 0; 1873 usbvision->user = 0; 1874 usbvision->streaming = Stream_Off; 1875 usbvision_register_video(usbvision); 1876 usbvision_configure_video(usbvision); 1877 up(&usbvision->lock); 1878 1879 1880 usb_set_intfdata (intf, usbvision); 1881 usbvision_create_sysfs(usbvision->vdev); 1882 1883 PDEBUG(DBG_PROBE, "success"); 1884 return 0; 1885} 1886 1887 1888/* 1889 * usbvision_disconnect() 1890 * 1891 * This procedure stops all driver activity, deallocates interface-private 1892 * structure (pointed by 'ptr') and after that driver should be removable 1893 * with no ill consequences. 1894 * 1895 */ 1896static void __devexit usbvision_disconnect(struct usb_interface *intf) 1897{ 1898 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1899 1900 PDEBUG(DBG_PROBE, ""); 1901 1902 if (usbvision == NULL) { 1903 err("%s: usb_get_intfdata() failed", __FUNCTION__); 1904 return; 1905 } 1906 usb_set_intfdata (intf, NULL); 1907 1908 down(&usbvision->lock); 1909 1910 // At this time we ask to cancel outstanding URBs 1911 usbvision_stop_isoc(usbvision); 1912 1913 if (usbvision->power) { 1914 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap); 1915 usbvision_power_off(usbvision); 1916 } 1917 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1918 1919 usb_put_dev(usbvision->dev); 1920 usbvision->dev = NULL; // USB device is no more 1921 1922 up(&usbvision->lock); 1923 1924 if (usbvision->user) { 1925 printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__); 1926 wake_up_interruptible(&usbvision->wait_frame); 1927 wake_up_interruptible(&usbvision->wait_stream); 1928 } 1929 else { 1930 usbvision_release(usbvision); 1931 } 1932 1933 PDEBUG(DBG_PROBE, "success"); 1934 1935} 1936 1937static struct usb_driver usbvision_driver = { 1938 .name = "usbvision", 1939 .id_table = usbvision_table, 1940 .probe = usbvision_probe, 1941 .disconnect = usbvision_disconnect 1942}; 1943 1944/* 1945 * customdevice_process() 1946 * 1947 * This procedure preprocesses CustomDevice parameter if any 1948 * 1949 */ 1950static void customdevice_process(void) 1951{ 1952 unsigned int id_vend,id_prod,radio,tuner; 1953 1954 usbvision_device_data[0]=usbvision_device_data[1]; 1955 usbvision_table[0]=usbvision_table[1]; 1956 1957 if(CustomDevice) 1958 { 1959 char *parse=CustomDevice; 1960 1961 PDEBUG(DBG_PROBE, "CustomDevice=%s", CustomDevice); 1962 1963 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1" 1964 usbvision_device_data[0].idVendor; 1965 usbvision_device_data[0].idProduct; 1966 usbvision_device_data[0].Interface; 1967 usbvision_device_data[0].Codec; 1968 usbvision_device_data[0].VideoChannels; 1969 usbvision_device_data[0].VideoNorm; 1970 usbvision_device_data[0].AudioChannels; 1971 usbvision_device_data[0].Radio; 1972 usbvision_device_data[0].Tuner; 1973 usbvision_device_data[0].TunerType; 1974 usbvision_device_data[0].Vin_Reg1; 1975 usbvision_device_data[0].Vin_Reg2; 1976 usbvision_device_data[0].X_Offset; 1977 usbvision_device_data[0].Y_Offset; 1978 usbvision_device_data[0].Dvi_yuv; 1979 usbvision_device_data[0].ModelString; 1980 */ 1981 1982 rmspace(parse); 1983 usbvision_device_data[0].ModelString="USBVISION Custom Device"; 1984 1985 parse+=2; 1986 sscanf(parse,"%u",&id_vend); 1987 usbvision_table[0].idVendor=id_vend; 1988 1989 goto2next(parse); 1990 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_table[0].idVendor); 1991 parse+=2; 1992 sscanf(parse,"%u",&id_prod); 1993 usbvision_table[0].idProduct=id_prod; 1994 goto2next(parse); 1995 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_table[0].idProduct); 1996 sscanf(parse,"%d",&usbvision_device_data[0].Interface); 1997 goto2next(parse); 1998 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface); 1999 sscanf(parse,"%d",&usbvision_device_data[0].Codec); 2000 goto2next(parse); 2001 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec); 2002 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels); 2003 goto2next(parse); 2004 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels); 2005 2006 switch(*parse) 2007 { 2008 case 'P': 2009 PDEBUG(DBG_PROBE, "VideoNorm=PAL"); 2010 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; 2011 break; 2012 2013 case 'S': 2014 PDEBUG(DBG_PROBE, "VideoNorm=SECAM"); 2015 usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM; 2016 break; 2017 2018 case 'N': 2019 PDEBUG(DBG_PROBE, "VideoNorm=NTSC"); 2020 usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC; 2021 break; 2022 2023 default: 2024 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)"); 2025 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL; 2026 break; 2027 } 2028 goto2next(parse); 2029 2030 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels); 2031 goto2next(parse); 2032 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels); 2033 sscanf(parse,"%d",&radio); 2034 usbvision_device_data[0].Radio=(radio?1:0); 2035 goto2next(parse); 2036 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio); 2037 sscanf(parse,"%d",&tuner); 2038 usbvision_device_data[0].Tuner=(tuner?1:0); 2039 goto2next(parse); 2040 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner); 2041 sscanf(parse,"%d",&usbvision_device_data[0].TunerType); 2042 goto2next(parse); 2043 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType); 2044 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1); 2045 goto2next(parse); 2046 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1); 2047 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2); 2048 goto2next(parse); 2049 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2); 2050 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset); 2051 goto2next(parse); 2052 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset); 2053 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset); 2054 goto2next(parse); 2055 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset); 2056 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv); 2057 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv); 2058 2059 //add to usbvision_table also 2060 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE; 2061 } 2062} 2063 2064 2065 2066/* 2067 * usbvision_init() 2068 * 2069 * This code is run to initialize the driver. 2070 * 2071 */ 2072static int __init usbvision_init(void) 2073{ 2074 int errCode; 2075 2076 PDEBUG(DBG_PROBE, ""); 2077 2078 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]"); 2079 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 2080 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 2081 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 2082 2083 /* disable planar mode support unless compression enabled */ 2084 if (isocMode != ISOC_MODE_COMPRESS ) { 2085 // FIXME : not the right way to set supported flag 2086 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 2087 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 2088 } 2089 2090 customdevice_process(); 2091 2092 errCode = usb_register(&usbvision_driver); 2093 2094 if (errCode == 0) { 2095 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 2096 PDEBUG(DBG_PROBE, "success"); 2097 } 2098 return errCode; 2099} 2100 2101static void __exit usbvision_exit(void) 2102{ 2103 PDEBUG(DBG_PROBE, ""); 2104 2105 usb_deregister(&usbvision_driver); 2106 PDEBUG(DBG_PROBE, "success"); 2107} 2108 2109module_init(usbvision_init); 2110module_exit(usbvision_exit); 2111 2112/* 2113 * Overrides for Emacs so that we follow Linus's tabbing style. 2114 * --------------------------------------------------------------------------- 2115 * Local variables: 2116 * c-basic-offset: 8 2117 * End: 2118 */ 2119