usbvision-video.c revision c170ecf434bceb0e188b14a6deb3bfa3ec9ef699
1/* 2 * USB USBVISION Video device driver 0.9.9 3 * 4 * 5 * 6 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> 7 * 8 * This module is part of usbvision driver project. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 * 24 * Let's call the version 0.... until compression decoding is completely 25 * implemented. 26 * 27 * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach. 28 * It was based on USB CPiA driver written by Peter Pregler, 29 * Scott J. Bertin and Johannes Erdfelt 30 * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler & 31 * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink 32 * Updates to driver completed by Dwaine P. Garden 33 * 34 * 35 * TODO: 36 * - use submit_urb for all setup packets 37 * - Fix memory settings for nt1004. It is 4 times as big as the 38 * nt1003 memory. 39 * - Add audio on endpoint 3 for nt1004 chip. 40 * Seems impossible, needs a codec interface. Which one? 41 * - Clean up the driver. 42 * - optimization for performance. 43 * - Add Videotext capability (VBI). Working on it..... 44 * - Check audio for other devices 45 * 46 */ 47 48#include <linux/version.h> 49#include <linux/kernel.h> 50#include <linux/list.h> 51#include <linux/timer.h> 52#include <linux/slab.h> 53#include <linux/mm.h> 54#include <linux/utsname.h> 55#include <linux/highmem.h> 56#include <linux/vmalloc.h> 57#include <linux/module.h> 58#include <linux/init.h> 59#include <linux/spinlock.h> 60#include <asm/io.h> 61#include <linux/videodev2.h> 62#include <linux/video_decoder.h> 63#include <linux/i2c.h> 64 65#include <media/saa7115.h> 66#include <media/v4l2-common.h> 67#include <media/v4l2-ioctl.h> 68#include <media/tuner.h> 69 70#include <linux/workqueue.h> 71 72#ifdef CONFIG_KMOD 73#include <linux/kmod.h> 74#endif 75 76#include "usbvision.h" 77#include "usbvision-cards.h" 78 79#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\ 80 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,\ 89USBVISION_DRIVER_VERSION_MINOR,\ 90USBVISION_DRIVER_VERSION_PATCHLEVEL) 91#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\ 92 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\ 93 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) 94 95#define ENABLE_HEXDUMP 0 /* Enable if you need it */ 96 97 98#ifdef USBVISION_DEBUG 99 #define PDEBUG(level, fmt, args...) { \ 100 if (video_debug & (level)) \ 101 info("[%s:%d] " fmt, __func__, __LINE__ , ## args); \ 102 } 103#else 104 #define PDEBUG(level, fmt, args...) do {} while(0) 105#endif 106 107#define DBG_IO 1<<1 108#define DBG_PROBE 1<<2 109#define DBG_MMAP 1<<3 110 111//String operations 112#define rmspace(str) while(*str==' ') str++; 113#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; 114 115 116/* sequential number of usbvision device */ 117static int usbvision_nr; 118 119static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { 120 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, 121 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, 122 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, 123 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, 124 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, 125 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, 126 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 ! 127 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } 128}; 129 130/* Function prototypes */ 131static void usbvision_release(struct usb_usbvision *usbvision); 132 133/* Default initialization of device driver parameters */ 134/* Set the default format for ISOC endpoint */ 135static int isocMode = ISOC_MODE_COMPRESS; 136/* Set the default Debug Mode of the device driver */ 137static int video_debug; 138/* Set the default device to power on at startup */ 139static int PowerOnAtOpen = 1; 140/* Sequential Number of Video Device */ 141static int video_nr = -1; 142/* Sequential Number of Radio Device */ 143static int radio_nr = -1; 144/* Sequential Number of VBI Device */ 145static int vbi_nr = -1; 146 147/* Grab parameters for the device driver */ 148 149/* Showing parameters under SYSFS */ 150module_param(isocMode, int, 0444); 151module_param(video_debug, int, 0444); 152module_param(PowerOnAtOpen, int, 0444); 153module_param(video_nr, int, 0444); 154module_param(radio_nr, int, 0444); 155module_param(vbi_nr, int, 0444); 156 157MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); 158MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); 159MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); 160MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); 161MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); 162MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); 163 164 165// Misc stuff 166MODULE_AUTHOR(DRIVER_AUTHOR); 167MODULE_DESCRIPTION(DRIVER_DESC); 168MODULE_LICENSE(DRIVER_LICENSE); 169MODULE_VERSION(USBVISION_VERSION_STRING); 170MODULE_ALIAS(DRIVER_ALIAS); 171 172 173/*****************************************************************************/ 174/* SYSFS Code - Copied from the stv680.c usb module. */ 175/* Device information is located at /sys/class/video4linux/video0 */ 176/* Device parameters information is located at /sys/module/usbvision */ 177/* Device USB Information is located at */ 178/* /sys/bus/usb/drivers/USBVision Video Grabber */ 179/*****************************************************************************/ 180 181#define YES_NO(x) ((x) ? "Yes" : "No") 182 183static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) 184{ 185 struct video_device *vdev = 186 container_of(cd, struct video_device, dev); 187 return video_get_drvdata(vdev); 188} 189 190static ssize_t show_version(struct device *cd, 191 struct device_attribute *attr, char *buf) 192{ 193 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); 194} 195static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); 196 197static ssize_t show_model(struct device *cd, 198 struct device_attribute *attr, char *buf) 199{ 200 struct video_device *vdev = 201 container_of(cd, struct video_device, dev); 202 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 203 return sprintf(buf, "%s\n", 204 usbvision_device_data[usbvision->DevModel].ModelString); 205} 206static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); 207 208static ssize_t show_hue(struct device *cd, 209 struct device_attribute *attr, char *buf) 210{ 211 struct video_device *vdev = 212 container_of(cd, struct video_device, dev); 213 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 214 struct v4l2_control ctrl; 215 ctrl.id = V4L2_CID_HUE; 216 ctrl.value = 0; 217 if(usbvision->user) 218 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 219 return sprintf(buf, "%d\n", ctrl.value); 220} 221static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); 222 223static ssize_t show_contrast(struct device *cd, 224 struct device_attribute *attr, char *buf) 225{ 226 struct video_device *vdev = 227 container_of(cd, struct video_device, dev); 228 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 229 struct v4l2_control ctrl; 230 ctrl.id = V4L2_CID_CONTRAST; 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 DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); 237 238static ssize_t show_brightness(struct device *cd, 239 struct device_attribute *attr, char *buf) 240{ 241 struct video_device *vdev = 242 container_of(cd, struct video_device, dev); 243 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 244 struct v4l2_control ctrl; 245 ctrl.id = V4L2_CID_BRIGHTNESS; 246 ctrl.value = 0; 247 if(usbvision->user) 248 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 249 return sprintf(buf, "%d\n", ctrl.value); 250} 251static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); 252 253static ssize_t show_saturation(struct device *cd, 254 struct device_attribute *attr, char *buf) 255{ 256 struct video_device *vdev = 257 container_of(cd, struct video_device, dev); 258 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 259 struct v4l2_control ctrl; 260 ctrl.id = V4L2_CID_SATURATION; 261 ctrl.value = 0; 262 if(usbvision->user) 263 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl); 264 return sprintf(buf, "%d\n", ctrl.value); 265} 266static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); 267 268static ssize_t show_streaming(struct device *cd, 269 struct device_attribute *attr, char *buf) 270{ 271 struct video_device *vdev = 272 container_of(cd, struct video_device, dev); 273 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 274 return sprintf(buf, "%s\n", 275 YES_NO(usbvision->streaming==Stream_On?1:0)); 276} 277static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); 278 279static ssize_t show_compression(struct device *cd, 280 struct device_attribute *attr, char *buf) 281{ 282 struct video_device *vdev = 283 container_of(cd, struct video_device, dev); 284 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 285 return sprintf(buf, "%s\n", 286 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); 287} 288static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); 289 290static ssize_t show_device_bridge(struct device *cd, 291 struct device_attribute *attr, char *buf) 292{ 293 struct video_device *vdev = 294 container_of(cd, struct video_device, dev); 295 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 296 return sprintf(buf, "%d\n", usbvision->bridgeType); 297} 298static 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 = device_create_file(&vdev->dev, &dev_attr_version); 307 if (res<0) 308 break; 309 res = device_create_file(&vdev->dev, &dev_attr_model); 310 if (res<0) 311 break; 312 res = device_create_file(&vdev->dev, &dev_attr_hue); 313 if (res<0) 314 break; 315 res = device_create_file(&vdev->dev, &dev_attr_contrast); 316 if (res<0) 317 break; 318 res = device_create_file(&vdev->dev, &dev_attr_brightness); 319 if (res<0) 320 break; 321 res = device_create_file(&vdev->dev, &dev_attr_saturation); 322 if (res<0) 323 break; 324 res = device_create_file(&vdev->dev, &dev_attr_streaming); 325 if (res<0) 326 break; 327 res = device_create_file(&vdev->dev, &dev_attr_compression); 328 if (res<0) 329 break; 330 res = device_create_file(&vdev->dev, &dev_attr_bridge); 331 if (res>=0) 332 return; 333 } while (0); 334 335 err("%s error: %d\n", __func__, res); 336} 337 338static void usbvision_remove_sysfs(struct video_device *vdev) 339{ 340 if (vdev) { 341 device_remove_file(&vdev->dev, &dev_attr_version); 342 device_remove_file(&vdev->dev, &dev_attr_model); 343 device_remove_file(&vdev->dev, &dev_attr_hue); 344 device_remove_file(&vdev->dev, &dev_attr_contrast); 345 device_remove_file(&vdev->dev, &dev_attr_brightness); 346 device_remove_file(&vdev->dev, &dev_attr_saturation); 347 device_remove_file(&vdev->dev, &dev_attr_streaming); 348 device_remove_file(&vdev->dev, &dev_attr_compression); 349 device_remove_file(&vdev->dev, &dev_attr_bridge); 350 } 351} 352 353/* 354 * usbvision_open() 355 * 356 * This is part of Video 4 Linux API. The driver can be opened by one 357 * client only (checks internal counter 'usbvision->user'). The procedure 358 * then allocates buffers needed for video processing. 359 * 360 */ 361static int usbvision_v4l2_open(struct inode *inode, struct file *file) 362{ 363 struct usb_usbvision *usbvision = video_drvdata(file); 364 int errCode = 0; 365 366 PDEBUG(DBG_IO, "open"); 367 368 lock_kernel(); 369 usbvision_reset_powerOffTimer(usbvision); 370 371 if (usbvision->user) 372 errCode = -EBUSY; 373 else { 374 /* Allocate memory for the scratch ring buffer */ 375 errCode = usbvision_scratch_alloc(usbvision); 376 if (isocMode==ISOC_MODE_COMPRESS) { 377 /* Allocate intermediate decompression buffers 378 only if needed */ 379 errCode = usbvision_decompress_alloc(usbvision); 380 } 381 if (errCode) { 382 /* Deallocate all buffers if trouble */ 383 usbvision_scratch_free(usbvision); 384 usbvision_decompress_free(usbvision); 385 } 386 } 387 388 /* If so far no errors then we shall start the camera */ 389 if (!errCode) { 390 mutex_lock(&usbvision->lock); 391 if (usbvision->power == 0) { 392 usbvision_power_on(usbvision); 393 usbvision_i2c_register(usbvision); 394 } 395 396 /* Send init sequence only once, it's large! */ 397 if (!usbvision->initialized) { 398 int setup_ok = 0; 399 setup_ok = usbvision_setup(usbvision,isocMode); 400 if (setup_ok) 401 usbvision->initialized = 1; 402 else 403 errCode = -EBUSY; 404 } 405 406 if (!errCode) { 407 usbvision_begin_streaming(usbvision); 408 errCode = usbvision_init_isoc(usbvision); 409 /* device must be initialized before isoc transfer */ 410 usbvision_muxsel(usbvision,0); 411 usbvision->user++; 412 } else { 413 if (PowerOnAtOpen) { 414 usbvision_i2c_unregister(usbvision); 415 usbvision_power_off(usbvision); 416 usbvision->initialized = 0; 417 } 418 } 419 mutex_unlock(&usbvision->lock); 420 } 421 422 /* prepare queues */ 423 usbvision_empty_framequeues(usbvision); 424 425 PDEBUG(DBG_IO, "success"); 426 unlock_kernel(); 427 return errCode; 428} 429 430/* 431 * usbvision_v4l2_close() 432 * 433 * This is part of Video 4 Linux API. The procedure 434 * stops streaming and deallocates all buffers that were earlier 435 * allocated in usbvision_v4l2_open(). 436 * 437 */ 438static int usbvision_v4l2_close(struct inode *inode, struct file *file) 439{ 440 struct usb_usbvision *usbvision = video_drvdata(file); 441 442 PDEBUG(DBG_IO, "close"); 443 mutex_lock(&usbvision->lock); 444 445 usbvision_audio_off(usbvision); 446 usbvision_restart_isoc(usbvision); 447 usbvision_stop_isoc(usbvision); 448 449 usbvision_decompress_free(usbvision); 450 usbvision_frames_free(usbvision); 451 usbvision_empty_framequeues(usbvision); 452 usbvision_scratch_free(usbvision); 453 454 usbvision->user--; 455 456 if (PowerOnAtOpen) { 457 /* power off in a little while 458 to avoid off/on every close/open short sequences */ 459 usbvision_set_powerOffTimer(usbvision); 460 usbvision->initialized = 0; 461 } 462 463 mutex_unlock(&usbvision->lock); 464 465 if (usbvision->remove_pending) { 466 printk(KERN_INFO "%s: Final disconnect\n", __func__); 467 usbvision_release(usbvision); 468 } 469 470 PDEBUG(DBG_IO, "success"); 471 return 0; 472} 473 474 475/* 476 * usbvision_ioctl() 477 * 478 * This is part of Video 4 Linux API. The procedure handles ioctl() calls. 479 * 480 */ 481#ifdef CONFIG_VIDEO_ADV_DEBUG 482static int vidioc_g_register (struct file *file, void *priv, 483 struct v4l2_register *reg) 484{ 485 struct usb_usbvision *usbvision = video_drvdata(file); 486 int errCode; 487 488 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 489 return -EINVAL; 490 /* NT100x has a 8-bit register space */ 491 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 492 if (errCode < 0) { 493 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d", 494 __func__, errCode); 495 return errCode; 496 } 497 reg->val = errCode; 498 return 0; 499} 500 501static int vidioc_s_register (struct file *file, void *priv, 502 struct v4l2_register *reg) 503{ 504 struct usb_usbvision *usbvision = video_drvdata(file); 505 int errCode; 506 507 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 508 return -EINVAL; 509 /* NT100x has a 8-bit register space */ 510 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 511 if (errCode < 0) { 512 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d", 513 __func__, errCode); 514 return errCode; 515 } 516 return 0; 517} 518#endif 519 520static int vidioc_querycap (struct file *file, void *priv, 521 struct v4l2_capability *vc) 522{ 523 struct usb_usbvision *usbvision = video_drvdata(file); 524 525 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 526 strlcpy(vc->card, 527 usbvision_device_data[usbvision->DevModel].ModelString, 528 sizeof(vc->card)); 529 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id, 530 sizeof(vc->bus_info)); 531 vc->version = USBVISION_DRIVER_VERSION; 532 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 533 V4L2_CAP_AUDIO | 534 V4L2_CAP_READWRITE | 535 V4L2_CAP_STREAMING | 536 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 537 return 0; 538} 539 540static int vidioc_enum_input (struct file *file, void *priv, 541 struct v4l2_input *vi) 542{ 543 struct usb_usbvision *usbvision = video_drvdata(file); 544 int chan; 545 546 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 547 return -EINVAL; 548 if (usbvision->have_tuner) { 549 chan = vi->index; 550 } else { 551 chan = vi->index + 1; /*skip Television string*/ 552 } 553 /* Determine the requested input characteristics 554 specific for each usbvision card model */ 555 switch(chan) { 556 case 0: 557 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 558 strcpy(vi->name, "White Video Input"); 559 } else { 560 strcpy(vi->name, "Television"); 561 vi->type = V4L2_INPUT_TYPE_TUNER; 562 vi->audioset = 1; 563 vi->tuner = chan; 564 vi->std = USBVISION_NORMS; 565 } 566 break; 567 case 1: 568 vi->type = V4L2_INPUT_TYPE_CAMERA; 569 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 570 strcpy(vi->name, "Green Video Input"); 571 } else { 572 strcpy(vi->name, "Composite Video Input"); 573 } 574 vi->std = V4L2_STD_PAL; 575 break; 576 case 2: 577 vi->type = V4L2_INPUT_TYPE_CAMERA; 578 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 579 strcpy(vi->name, "Yellow Video Input"); 580 } else { 581 strcpy(vi->name, "S-Video Input"); 582 } 583 vi->std = V4L2_STD_PAL; 584 break; 585 case 3: 586 vi->type = V4L2_INPUT_TYPE_CAMERA; 587 strcpy(vi->name, "Red Video Input"); 588 vi->std = V4L2_STD_PAL; 589 break; 590 } 591 return 0; 592} 593 594static int vidioc_g_input (struct file *file, void *priv, unsigned int *input) 595{ 596 struct usb_usbvision *usbvision = video_drvdata(file); 597 598 *input = usbvision->ctl_input; 599 return 0; 600} 601 602static int vidioc_s_input (struct file *file, void *priv, unsigned int input) 603{ 604 struct usb_usbvision *usbvision = video_drvdata(file); 605 606 if ((input >= usbvision->video_inputs) || (input < 0) ) 607 return -EINVAL; 608 609 mutex_lock(&usbvision->lock); 610 usbvision_muxsel(usbvision, input); 611 usbvision_set_input(usbvision); 612 usbvision_set_output(usbvision, 613 usbvision->curwidth, 614 usbvision->curheight); 615 mutex_unlock(&usbvision->lock); 616 return 0; 617} 618 619static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id) 620{ 621 struct usb_usbvision *usbvision = video_drvdata(file); 622 623 usbvision->tvnormId=*id; 624 625 mutex_lock(&usbvision->lock); 626 call_i2c_clients(usbvision, VIDIOC_S_STD, 627 &usbvision->tvnormId); 628 mutex_unlock(&usbvision->lock); 629 /* propagate the change to the decoder */ 630 usbvision_muxsel(usbvision, usbvision->ctl_input); 631 632 return 0; 633} 634 635static int vidioc_g_tuner (struct file *file, void *priv, 636 struct v4l2_tuner *vt) 637{ 638 struct usb_usbvision *usbvision = video_drvdata(file); 639 640 if (!usbvision->have_tuner || vt->index) // Only tuner 0 641 return -EINVAL; 642 if(usbvision->radio) { 643 strcpy(vt->name, "Radio"); 644 vt->type = V4L2_TUNER_RADIO; 645 } else { 646 strcpy(vt->name, "Television"); 647 } 648 /* Let clients fill in the remainder of this struct */ 649 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 650 651 return 0; 652} 653 654static int vidioc_s_tuner (struct file *file, void *priv, 655 struct v4l2_tuner *vt) 656{ 657 struct usb_usbvision *usbvision = video_drvdata(file); 658 659 // Only no or one tuner for now 660 if (!usbvision->have_tuner || vt->index) 661 return -EINVAL; 662 /* let clients handle this */ 663 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 664 665 return 0; 666} 667 668static int vidioc_g_frequency (struct file *file, void *priv, 669 struct v4l2_frequency *freq) 670{ 671 struct usb_usbvision *usbvision = video_drvdata(file); 672 673 freq->tuner = 0; // Only one tuner 674 if(usbvision->radio) { 675 freq->type = V4L2_TUNER_RADIO; 676 } else { 677 freq->type = V4L2_TUNER_ANALOG_TV; 678 } 679 freq->frequency = usbvision->freq; 680 681 return 0; 682} 683 684static int vidioc_s_frequency (struct file *file, void *priv, 685 struct v4l2_frequency *freq) 686{ 687 struct usb_usbvision *usbvision = video_drvdata(file); 688 689 // Only no or one tuner for now 690 if (!usbvision->have_tuner || freq->tuner) 691 return -EINVAL; 692 693 usbvision->freq = freq->frequency; 694 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq); 695 696 return 0; 697} 698 699static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a) 700{ 701 struct usb_usbvision *usbvision = video_drvdata(file); 702 703 memset(a,0,sizeof(*a)); 704 if(usbvision->radio) { 705 strcpy(a->name,"Radio"); 706 } else { 707 strcpy(a->name, "TV"); 708 } 709 710 return 0; 711} 712 713static int vidioc_s_audio (struct file *file, void *fh, 714 struct v4l2_audio *a) 715{ 716 if(a->index) { 717 return -EINVAL; 718 } 719 720 return 0; 721} 722 723static int vidioc_queryctrl (struct file *file, void *priv, 724 struct v4l2_queryctrl *ctrl) 725{ 726 struct usb_usbvision *usbvision = video_drvdata(file); 727 int id=ctrl->id; 728 729 memset(ctrl,0,sizeof(*ctrl)); 730 ctrl->id=id; 731 732 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl); 733 734 if (!ctrl->type) 735 return -EINVAL; 736 737 return 0; 738} 739 740static int vidioc_g_ctrl (struct file *file, void *priv, 741 struct v4l2_control *ctrl) 742{ 743 struct usb_usbvision *usbvision = video_drvdata(file); 744 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 745 746 return 0; 747} 748 749static int vidioc_s_ctrl (struct file *file, void *priv, 750 struct v4l2_control *ctrl) 751{ 752 struct usb_usbvision *usbvision = video_drvdata(file); 753 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 754 755 return 0; 756} 757 758static int vidioc_reqbufs (struct file *file, 759 void *priv, struct v4l2_requestbuffers *vr) 760{ 761 struct usb_usbvision *usbvision = video_drvdata(file); 762 int ret; 763 764 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 765 766 /* Check input validity: 767 the user must do a VIDEO CAPTURE and MMAP method. */ 768 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 769 (vr->memory != V4L2_MEMORY_MMAP)) 770 return -EINVAL; 771 772 if(usbvision->streaming == Stream_On) { 773 if ((ret = usbvision_stream_interrupt(usbvision))) 774 return ret; 775 } 776 777 usbvision_frames_free(usbvision); 778 usbvision_empty_framequeues(usbvision); 779 vr->count = usbvision_frames_alloc(usbvision,vr->count); 780 781 usbvision->curFrame = NULL; 782 783 return 0; 784} 785 786static int vidioc_querybuf (struct file *file, 787 void *priv, struct v4l2_buffer *vb) 788{ 789 struct usb_usbvision *usbvision = video_drvdata(file); 790 struct usbvision_frame *frame; 791 792 /* FIXME : must control 793 that buffers are mapped (VIDIOC_REQBUFS has been called) */ 794 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 795 return -EINVAL; 796 } 797 if(vb->index>=usbvision->num_frames) { 798 return -EINVAL; 799 } 800 /* Updating the corresponding frame state */ 801 vb->flags = 0; 802 frame = &usbvision->frame[vb->index]; 803 if(frame->grabstate >= FrameState_Ready) 804 vb->flags |= V4L2_BUF_FLAG_QUEUED; 805 if(frame->grabstate >= FrameState_Done) 806 vb->flags |= V4L2_BUF_FLAG_DONE; 807 if(frame->grabstate == FrameState_Unused) 808 vb->flags |= V4L2_BUF_FLAG_MAPPED; 809 vb->memory = V4L2_MEMORY_MMAP; 810 811 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 812 813 vb->memory = V4L2_MEMORY_MMAP; 814 vb->field = V4L2_FIELD_NONE; 815 vb->length = usbvision->curwidth* 816 usbvision->curheight* 817 usbvision->palette.bytes_per_pixel; 818 vb->timestamp = usbvision->frame[vb->index].timestamp; 819 vb->sequence = usbvision->frame[vb->index].sequence; 820 return 0; 821} 822 823static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 824{ 825 struct usb_usbvision *usbvision = video_drvdata(file); 826 struct usbvision_frame *frame; 827 unsigned long lock_flags; 828 829 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ 830 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 831 return -EINVAL; 832 } 833 if(vb->index>=usbvision->num_frames) { 834 return -EINVAL; 835 } 836 837 frame = &usbvision->frame[vb->index]; 838 839 if (frame->grabstate != FrameState_Unused) { 840 return -EAGAIN; 841 } 842 843 /* Mark it as ready and enqueue frame */ 844 frame->grabstate = FrameState_Ready; 845 frame->scanstate = ScanState_Scanning; 846 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 847 848 vb->flags &= ~V4L2_BUF_FLAG_DONE; 849 850 /* set v4l2_format index */ 851 frame->v4l2_format = usbvision->palette; 852 853 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 854 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 855 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 856 857 return 0; 858} 859 860static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 861{ 862 struct usb_usbvision *usbvision = video_drvdata(file); 863 int ret; 864 struct usbvision_frame *f; 865 unsigned long lock_flags; 866 867 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 868 return -EINVAL; 869 870 if (list_empty(&(usbvision->outqueue))) { 871 if (usbvision->streaming == Stream_Idle) 872 return -EINVAL; 873 ret = wait_event_interruptible 874 (usbvision->wait_frame, 875 !list_empty(&(usbvision->outqueue))); 876 if (ret) 877 return ret; 878 } 879 880 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 881 f = list_entry(usbvision->outqueue.next, 882 struct usbvision_frame, frame); 883 list_del(usbvision->outqueue.next); 884 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 885 886 f->grabstate = FrameState_Unused; 887 888 vb->memory = V4L2_MEMORY_MMAP; 889 vb->flags = V4L2_BUF_FLAG_MAPPED | 890 V4L2_BUF_FLAG_QUEUED | 891 V4L2_BUF_FLAG_DONE; 892 vb->index = f->index; 893 vb->sequence = f->sequence; 894 vb->timestamp = f->timestamp; 895 vb->field = V4L2_FIELD_NONE; 896 vb->bytesused = f->scanlength; 897 898 return 0; 899} 900 901static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) 902{ 903 struct usb_usbvision *usbvision = video_drvdata(file); 904 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 905 906 usbvision->streaming = Stream_On; 907 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 908 909 return 0; 910} 911 912static int vidioc_streamoff(struct file *file, 913 void *priv, enum v4l2_buf_type type) 914{ 915 struct usb_usbvision *usbvision = video_drvdata(file); 916 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 917 918 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 919 return -EINVAL; 920 921 if(usbvision->streaming == Stream_On) { 922 usbvision_stream_interrupt(usbvision); 923 /* Stop all video streamings */ 924 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 925 } 926 usbvision_empty_framequeues(usbvision); 927 928 return 0; 929} 930 931static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, 932 struct v4l2_fmtdesc *vfd) 933{ 934 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 935 return -EINVAL; 936 } 937 vfd->flags = 0; 938 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 939 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 940 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 941 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 942 return 0; 943} 944 945static int vidioc_g_fmt_vid_cap (struct file *file, void *priv, 946 struct v4l2_format *vf) 947{ 948 struct usb_usbvision *usbvision = video_drvdata(file); 949 vf->fmt.pix.width = usbvision->curwidth; 950 vf->fmt.pix.height = usbvision->curheight; 951 vf->fmt.pix.pixelformat = usbvision->palette.format; 952 vf->fmt.pix.bytesperline = 953 usbvision->curwidth*usbvision->palette.bytes_per_pixel; 954 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 955 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 956 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 957 958 return 0; 959} 960 961static int vidioc_try_fmt_vid_cap (struct file *file, void *priv, 962 struct v4l2_format *vf) 963{ 964 struct usb_usbvision *usbvision = video_drvdata(file); 965 int formatIdx; 966 967 /* Find requested format in available ones */ 968 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 969 if(vf->fmt.pix.pixelformat == 970 usbvision_v4l2_format[formatIdx].format) { 971 usbvision->palette = usbvision_v4l2_format[formatIdx]; 972 break; 973 } 974 } 975 /* robustness */ 976 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 977 return -EINVAL; 978 } 979 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 980 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 981 982 vf->fmt.pix.bytesperline = vf->fmt.pix.width* 983 usbvision->palette.bytes_per_pixel; 984 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 985 986 return 0; 987} 988 989static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 990 struct v4l2_format *vf) 991{ 992 struct usb_usbvision *usbvision = video_drvdata(file); 993 int ret; 994 995 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) { 996 return ret; 997 } 998 999 /* stop io in case it is already in progress */ 1000 if(usbvision->streaming == Stream_On) { 1001 if ((ret = usbvision_stream_interrupt(usbvision))) 1002 return ret; 1003 } 1004 usbvision_frames_free(usbvision); 1005 usbvision_empty_framequeues(usbvision); 1006 1007 usbvision->curFrame = NULL; 1008 1009 /* by now we are committed to the new data... */ 1010 mutex_lock(&usbvision->lock); 1011 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1012 mutex_unlock(&usbvision->lock); 1013 1014 return 0; 1015} 1016 1017static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1018 size_t count, loff_t *ppos) 1019{ 1020 struct usb_usbvision *usbvision = video_drvdata(file); 1021 int noblock = file->f_flags & O_NONBLOCK; 1022 unsigned long lock_flags; 1023 1024 int ret,i; 1025 struct usbvision_frame *frame; 1026 1027 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, 1028 (unsigned long)count, noblock); 1029 1030 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1031 return -EFAULT; 1032 1033 /* This entry point is compatible with the mmap routines 1034 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF 1035 to get frames or call read on the device. */ 1036 if(!usbvision->num_frames) { 1037 /* First, allocate some frames to work with 1038 if this has not been done with VIDIOC_REQBUF */ 1039 usbvision_frames_free(usbvision); 1040 usbvision_empty_framequeues(usbvision); 1041 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1042 } 1043 1044 if(usbvision->streaming != Stream_On) { 1045 /* no stream is running, make it running ! */ 1046 usbvision->streaming = Stream_On; 1047 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1048 } 1049 1050 /* Then, enqueue as many frames as possible 1051 (like a user of VIDIOC_QBUF would do) */ 1052 for(i=0;i<usbvision->num_frames;i++) { 1053 frame = &usbvision->frame[i]; 1054 if(frame->grabstate == FrameState_Unused) { 1055 /* Mark it as ready and enqueue frame */ 1056 frame->grabstate = FrameState_Ready; 1057 frame->scanstate = ScanState_Scanning; 1058 /* Accumulated in usbvision_parse_data() */ 1059 frame->scanlength = 0; 1060 1061 /* set v4l2_format index */ 1062 frame->v4l2_format = usbvision->palette; 1063 1064 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1065 list_add_tail(&frame->frame, &usbvision->inqueue); 1066 spin_unlock_irqrestore(&usbvision->queue_lock, 1067 lock_flags); 1068 } 1069 } 1070 1071 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1072 if (list_empty(&(usbvision->outqueue))) { 1073 if(noblock) 1074 return -EAGAIN; 1075 1076 ret = wait_event_interruptible 1077 (usbvision->wait_frame, 1078 !list_empty(&(usbvision->outqueue))); 1079 if (ret) 1080 return ret; 1081 } 1082 1083 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1084 frame = list_entry(usbvision->outqueue.next, 1085 struct usbvision_frame, frame); 1086 list_del(usbvision->outqueue.next); 1087 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1088 1089 /* An error returns an empty frame */ 1090 if (frame->grabstate == FrameState_Error) { 1091 frame->bytes_read = 0; 1092 return 0; 1093 } 1094 1095 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", 1096 __func__, 1097 frame->index, frame->bytes_read, frame->scanlength); 1098 1099 /* copy bytes to user space; we allow for partials reads */ 1100 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1101 count = frame->scanlength - frame->bytes_read; 1102 1103 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1104 return -EFAULT; 1105 } 1106 1107 frame->bytes_read += count; 1108 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", 1109 __func__, 1110 (unsigned long)count, frame->bytes_read); 1111 1112 /* For now, forget the frame if it has not been read in one shot. */ 1113/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1114 frame->bytes_read = 0; 1115 1116 /* Mark it as available to be used again. */ 1117 frame->grabstate = FrameState_Unused; 1118/* } */ 1119 1120 return count; 1121} 1122 1123static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1124{ 1125 unsigned long size = vma->vm_end - vma->vm_start, 1126 start = vma->vm_start; 1127 void *pos; 1128 u32 i; 1129 struct usb_usbvision *usbvision = video_drvdata(file); 1130 1131 PDEBUG(DBG_MMAP, "mmap"); 1132 1133 mutex_lock(&usbvision->lock); 1134 1135 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1136 mutex_unlock(&usbvision->lock); 1137 return -EFAULT; 1138 } 1139 1140 if (!(vma->vm_flags & VM_WRITE) || 1141 size != PAGE_ALIGN(usbvision->max_frame_size)) { 1142 mutex_unlock(&usbvision->lock); 1143 return -EINVAL; 1144 } 1145 1146 for (i = 0; i < usbvision->num_frames; i++) { 1147 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == 1148 vma->vm_pgoff) 1149 break; 1150 } 1151 if (i == usbvision->num_frames) { 1152 PDEBUG(DBG_MMAP, 1153 "mmap: user supplied mapping address is out of range"); 1154 mutex_unlock(&usbvision->lock); 1155 return -EINVAL; 1156 } 1157 1158 /* VM_IO is eventually going to replace PageReserved altogether */ 1159 vma->vm_flags |= VM_IO; 1160 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1161 1162 pos = usbvision->frame[i].data; 1163 while (size > 0) { 1164 1165 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1166 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1167 mutex_unlock(&usbvision->lock); 1168 return -EAGAIN; 1169 } 1170 start += PAGE_SIZE; 1171 pos += PAGE_SIZE; 1172 size -= PAGE_SIZE; 1173 } 1174 1175 mutex_unlock(&usbvision->lock); 1176 return 0; 1177} 1178 1179 1180/* 1181 * Here comes the stuff for radio on usbvision based devices 1182 * 1183 */ 1184static int usbvision_radio_open(struct inode *inode, struct file *file) 1185{ 1186 struct usb_usbvision *usbvision = video_drvdata(file); 1187 int errCode = 0; 1188 1189 PDEBUG(DBG_IO, "%s:", __func__); 1190 1191 mutex_lock(&usbvision->lock); 1192 1193 if (usbvision->user) { 1194 err("%s: Someone tried to open an already opened USBVision Radio!", __func__); 1195 errCode = -EBUSY; 1196 } 1197 else { 1198 if(PowerOnAtOpen) { 1199 usbvision_reset_powerOffTimer(usbvision); 1200 if (usbvision->power == 0) { 1201 usbvision_power_on(usbvision); 1202 usbvision_i2c_register(usbvision); 1203 } 1204 } 1205 1206 /* Alternate interface 1 is is the biggest frame size */ 1207 errCode = usbvision_set_alternate(usbvision); 1208 if (errCode < 0) { 1209 usbvision->last_error = errCode; 1210 errCode = -EBUSY; 1211 goto out; 1212 } 1213 1214 // If so far no errors then we shall start the radio 1215 usbvision->radio = 1; 1216 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); 1217 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1218 usbvision->user++; 1219 } 1220 1221 if (errCode) { 1222 if (PowerOnAtOpen) { 1223 usbvision_i2c_unregister(usbvision); 1224 usbvision_power_off(usbvision); 1225 usbvision->initialized = 0; 1226 } 1227 } 1228out: 1229 mutex_unlock(&usbvision->lock); 1230 return errCode; 1231} 1232 1233 1234static int usbvision_radio_close(struct inode *inode, struct file *file) 1235{ 1236 struct usb_usbvision *usbvision = video_drvdata(file); 1237 int errCode = 0; 1238 1239 PDEBUG(DBG_IO, ""); 1240 1241 mutex_lock(&usbvision->lock); 1242 1243 /* Set packet size to 0 */ 1244 usbvision->ifaceAlt=0; 1245 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1246 usbvision->ifaceAlt); 1247 1248 usbvision_audio_off(usbvision); 1249 usbvision->radio=0; 1250 usbvision->user--; 1251 1252 if (PowerOnAtOpen) { 1253 usbvision_set_powerOffTimer(usbvision); 1254 usbvision->initialized = 0; 1255 } 1256 1257 mutex_unlock(&usbvision->lock); 1258 1259 if (usbvision->remove_pending) { 1260 printk(KERN_INFO "%s: Final disconnect\n", __func__); 1261 usbvision_release(usbvision); 1262 } 1263 1264 PDEBUG(DBG_IO, "success"); 1265 return errCode; 1266} 1267 1268/* 1269 * Here comes the stuff for vbi on usbvision based devices 1270 * 1271 */ 1272static int usbvision_vbi_open(struct inode *inode, struct file *file) 1273{ 1274 /* TODO */ 1275 return -ENODEV; 1276} 1277 1278static int usbvision_vbi_close(struct inode *inode, struct file *file) 1279{ 1280 /* TODO */ 1281 return -ENODEV; 1282} 1283 1284static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file, 1285 unsigned int cmd, void *arg) 1286{ 1287 /* TODO */ 1288 return -ENOIOCTLCMD; 1289} 1290 1291static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1292 unsigned int cmd, unsigned long arg) 1293{ 1294 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl); 1295} 1296 1297 1298// 1299// Video registration stuff 1300// 1301 1302// Video template 1303static const struct file_operations usbvision_fops = { 1304 .owner = THIS_MODULE, 1305 .open = usbvision_v4l2_open, 1306 .release = usbvision_v4l2_close, 1307 .read = usbvision_v4l2_read, 1308 .mmap = usbvision_v4l2_mmap, 1309 .ioctl = video_ioctl2, 1310 .llseek = no_llseek, 1311/* .poll = video_poll, */ 1312 .compat_ioctl = v4l_compat_ioctl32, 1313}; 1314 1315static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { 1316 .vidioc_querycap = vidioc_querycap, 1317 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1318 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1319 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1320 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1321 .vidioc_reqbufs = vidioc_reqbufs, 1322 .vidioc_querybuf = vidioc_querybuf, 1323 .vidioc_qbuf = vidioc_qbuf, 1324 .vidioc_dqbuf = vidioc_dqbuf, 1325 .vidioc_s_std = vidioc_s_std, 1326 .vidioc_enum_input = vidioc_enum_input, 1327 .vidioc_g_input = vidioc_g_input, 1328 .vidioc_s_input = vidioc_s_input, 1329 .vidioc_queryctrl = vidioc_queryctrl, 1330 .vidioc_g_audio = vidioc_g_audio, 1331 .vidioc_s_audio = vidioc_s_audio, 1332 .vidioc_g_ctrl = vidioc_g_ctrl, 1333 .vidioc_s_ctrl = vidioc_s_ctrl, 1334 .vidioc_streamon = vidioc_streamon, 1335 .vidioc_streamoff = vidioc_streamoff, 1336#ifdef CONFIG_VIDEO_V4L1_COMPAT 1337/* .vidiocgmbuf = vidiocgmbuf, */ 1338#endif 1339 .vidioc_g_tuner = vidioc_g_tuner, 1340 .vidioc_s_tuner = vidioc_s_tuner, 1341 .vidioc_g_frequency = vidioc_g_frequency, 1342 .vidioc_s_frequency = vidioc_s_frequency, 1343#ifdef CONFIG_VIDEO_ADV_DEBUG 1344 .vidioc_g_register = vidioc_g_register, 1345 .vidioc_s_register = vidioc_s_register, 1346#endif 1347}; 1348 1349static struct video_device usbvision_video_template = { 1350 .fops = &usbvision_fops, 1351 .ioctl_ops = &usbvision_ioctl_ops, 1352 .name = "usbvision-video", 1353 .release = video_device_release, 1354 .minor = -1, 1355 .tvnorms = USBVISION_NORMS, 1356 .current_norm = V4L2_STD_PAL 1357}; 1358 1359 1360// Radio template 1361static const struct file_operations usbvision_radio_fops = { 1362 .owner = THIS_MODULE, 1363 .open = usbvision_radio_open, 1364 .release = usbvision_radio_close, 1365 .ioctl = video_ioctl2, 1366 .llseek = no_llseek, 1367 .compat_ioctl = v4l_compat_ioctl32, 1368}; 1369 1370static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { 1371 .vidioc_querycap = vidioc_querycap, 1372 .vidioc_enum_input = vidioc_enum_input, 1373 .vidioc_g_input = vidioc_g_input, 1374 .vidioc_s_input = vidioc_s_input, 1375 .vidioc_queryctrl = vidioc_queryctrl, 1376 .vidioc_g_audio = vidioc_g_audio, 1377 .vidioc_s_audio = vidioc_s_audio, 1378 .vidioc_g_ctrl = vidioc_g_ctrl, 1379 .vidioc_s_ctrl = vidioc_s_ctrl, 1380 .vidioc_g_tuner = vidioc_g_tuner, 1381 .vidioc_s_tuner = vidioc_s_tuner, 1382 .vidioc_g_frequency = vidioc_g_frequency, 1383 .vidioc_s_frequency = vidioc_s_frequency, 1384}; 1385 1386static struct video_device usbvision_radio_template = { 1387 .fops = &usbvision_radio_fops, 1388 .name = "usbvision-radio", 1389 .release = video_device_release, 1390 .minor = -1, 1391 .ioctl_ops = &usbvision_radio_ioctl_ops, 1392 1393 .tvnorms = USBVISION_NORMS, 1394 .current_norm = V4L2_STD_PAL 1395}; 1396 1397// vbi template 1398static const struct file_operations usbvision_vbi_fops = { 1399 .owner = THIS_MODULE, 1400 .open = usbvision_vbi_open, 1401 .release = usbvision_vbi_close, 1402 .ioctl = usbvision_vbi_ioctl, 1403 .llseek = no_llseek, 1404 .compat_ioctl = v4l_compat_ioctl32, 1405}; 1406 1407static struct video_device usbvision_vbi_template= 1408{ 1409 .fops = &usbvision_vbi_fops, 1410 .release = video_device_release, 1411 .name = "usbvision-vbi", 1412 .minor = -1, 1413}; 1414 1415 1416static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1417 struct video_device *vdev_template, 1418 char *name) 1419{ 1420 struct usb_device *usb_dev = usbvision->dev; 1421 struct video_device *vdev; 1422 1423 if (usb_dev == NULL) { 1424 err("%s: usbvision->dev is not set", __func__); 1425 return NULL; 1426 } 1427 1428 vdev = video_device_alloc(); 1429 if (NULL == vdev) { 1430 return NULL; 1431 } 1432 *vdev = *vdev_template; 1433// vdev->minor = -1; 1434 vdev->parent = &usb_dev->dev; 1435 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1436 video_set_drvdata(vdev, usbvision); 1437 return vdev; 1438} 1439 1440// unregister video4linux devices 1441static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1442{ 1443 // vbi Device: 1444 if (usbvision->vbi) { 1445 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", 1446 usbvision->vbi->minor & 0x1f); 1447 if (usbvision->vbi->minor != -1) { 1448 video_unregister_device(usbvision->vbi); 1449 } else { 1450 video_device_release(usbvision->vbi); 1451 } 1452 usbvision->vbi = NULL; 1453 } 1454 1455 // Radio Device: 1456 if (usbvision->rdev) { 1457 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", 1458 usbvision->rdev->minor & 0x1f); 1459 if (usbvision->rdev->minor != -1) { 1460 video_unregister_device(usbvision->rdev); 1461 } else { 1462 video_device_release(usbvision->rdev); 1463 } 1464 usbvision->rdev = NULL; 1465 } 1466 1467 // Video Device: 1468 if (usbvision->vdev) { 1469 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", 1470 usbvision->vdev->minor & 0x1f); 1471 if (usbvision->vdev->minor != -1) { 1472 video_unregister_device(usbvision->vdev); 1473 } else { 1474 video_device_release(usbvision->vdev); 1475 } 1476 usbvision->vdev = NULL; 1477 } 1478} 1479 1480// register video4linux devices 1481static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1482{ 1483 // Video Device: 1484 usbvision->vdev = usbvision_vdev_init(usbvision, 1485 &usbvision_video_template, 1486 "USBVision Video"); 1487 if (usbvision->vdev == NULL) { 1488 goto err_exit; 1489 } 1490 if (video_register_device(usbvision->vdev, 1491 VFL_TYPE_GRABBER, 1492 video_nr)<0) { 1493 goto err_exit; 1494 } 1495 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", 1496 usbvision->nr,usbvision->vdev->minor & 0x1f); 1497 1498 // Radio Device: 1499 if (usbvision_device_data[usbvision->DevModel].Radio) { 1500 // usbvision has radio 1501 usbvision->rdev = usbvision_vdev_init(usbvision, 1502 &usbvision_radio_template, 1503 "USBVision Radio"); 1504 if (usbvision->rdev == NULL) { 1505 goto err_exit; 1506 } 1507 if (video_register_device(usbvision->rdev, 1508 VFL_TYPE_RADIO, 1509 radio_nr)<0) { 1510 goto err_exit; 1511 } 1512 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", 1513 usbvision->nr, usbvision->rdev->minor & 0x1f); 1514 } 1515 // vbi Device: 1516 if (usbvision_device_data[usbvision->DevModel].vbi) { 1517 usbvision->vbi = usbvision_vdev_init(usbvision, 1518 &usbvision_vbi_template, 1519 "USBVision VBI"); 1520 if (usbvision->vdev == NULL) { 1521 goto err_exit; 1522 } 1523 if (video_register_device(usbvision->vbi, 1524 VFL_TYPE_VBI, 1525 vbi_nr)<0) { 1526 goto err_exit; 1527 } 1528 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", 1529 usbvision->nr,usbvision->vbi->minor & 0x1f); 1530 } 1531 // all done 1532 return 0; 1533 1534 err_exit: 1535 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1536 usbvision_unregister_video(usbvision); 1537 return -1; 1538} 1539 1540/* 1541 * usbvision_alloc() 1542 * 1543 * This code allocates the struct usb_usbvision. 1544 * It is filled with default values. 1545 * 1546 * Returns NULL on error, a pointer to usb_usbvision else. 1547 * 1548 */ 1549static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1550{ 1551 struct usb_usbvision *usbvision; 1552 1553 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == 1554 NULL) { 1555 goto err_exit; 1556 } 1557 1558 usbvision->dev = dev; 1559 1560 mutex_init(&usbvision->lock); /* available */ 1561 1562 // prepare control urb for control messages during interrupts 1563 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1564 if (usbvision->ctrlUrb == NULL) { 1565 goto err_exit; 1566 } 1567 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1568 1569 usbvision_init_powerOffTimer(usbvision); 1570 1571 return usbvision; 1572 1573err_exit: 1574 if (usbvision && usbvision->ctrlUrb) { 1575 usb_free_urb(usbvision->ctrlUrb); 1576 } 1577 if (usbvision) { 1578 kfree(usbvision); 1579 } 1580 return NULL; 1581} 1582 1583/* 1584 * usbvision_release() 1585 * 1586 * This code does final release of struct usb_usbvision. This happens 1587 * after the device is disconnected -and- all clients closed their files. 1588 * 1589 */ 1590static void usbvision_release(struct usb_usbvision *usbvision) 1591{ 1592 PDEBUG(DBG_PROBE, ""); 1593 1594 mutex_lock(&usbvision->lock); 1595 1596 usbvision_reset_powerOffTimer(usbvision); 1597 1598 usbvision->initialized = 0; 1599 1600 mutex_unlock(&usbvision->lock); 1601 1602 usbvision_remove_sysfs(usbvision->vdev); 1603 usbvision_unregister_video(usbvision); 1604 1605 if (usbvision->ctrlUrb) { 1606 usb_free_urb(usbvision->ctrlUrb); 1607 } 1608 1609 kfree(usbvision); 1610 1611 PDEBUG(DBG_PROBE, "success"); 1612} 1613 1614 1615/*********************** usb interface **********************************/ 1616 1617static void usbvision_configure_video(struct usb_usbvision *usbvision) 1618{ 1619 int model; 1620 1621 if (usbvision == NULL) 1622 return; 1623 1624 model = usbvision->DevModel; 1625 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1626 1627 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { 1628 usbvision->Vin_Reg2_Preset = 1629 usbvision_device_data[usbvision->DevModel].Vin_Reg2; 1630 } else { 1631 usbvision->Vin_Reg2_Preset = 0; 1632 } 1633 1634 usbvision->tvnormId = usbvision_device_data[model].VideoNorm; 1635 1636 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1637 usbvision->ctl_input = 0; 1638 1639 /* This should be here to make i2c clients to be able to register */ 1640 /* first switch off audio */ 1641 usbvision_audio_off(usbvision); 1642 if (!PowerOnAtOpen) { 1643 /* and then power up the noisy tuner */ 1644 usbvision_power_on(usbvision); 1645 usbvision_i2c_register(usbvision); 1646 } 1647} 1648 1649/* 1650 * usbvision_probe() 1651 * 1652 * This procedure queries device descriptor and accepts the interface 1653 * if it looks like USBVISION video device 1654 * 1655 */ 1656static int __devinit usbvision_probe(struct usb_interface *intf, 1657 const struct usb_device_id *devid) 1658{ 1659 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1660 struct usb_interface *uif; 1661 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1662 const struct usb_host_interface *interface; 1663 struct usb_usbvision *usbvision = NULL; 1664 const struct usb_endpoint_descriptor *endpoint; 1665 int model,i; 1666 1667 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1668 dev->descriptor.idVendor, 1669 dev->descriptor.idProduct, ifnum); 1670 1671 model = devid->driver_info; 1672 if ( (model<0) || (model>=usbvision_device_data_size) ) { 1673 PDEBUG(DBG_PROBE, "model out of bounds %d",model); 1674 return -ENODEV; 1675 } 1676 printk(KERN_INFO "%s: %s found\n", __func__, 1677 usbvision_device_data[model].ModelString); 1678 1679 if (usbvision_device_data[model].Interface >= 0) { 1680 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1681 } else { 1682 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1683 } 1684 endpoint = &interface->endpoint[1].desc; 1685 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != 1686 USB_ENDPOINT_XFER_ISOC) { 1687 err("%s: interface %d. has non-ISO endpoint!", 1688 __func__, ifnum); 1689 err("%s: Endpoint attributes %d", 1690 __func__, endpoint->bmAttributes); 1691 return -ENODEV; 1692 } 1693 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == 1694 USB_DIR_OUT) { 1695 err("%s: interface %d. has ISO OUT endpoint!", 1696 __func__, ifnum); 1697 return -ENODEV; 1698 } 1699 1700 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1701 err("%s: couldn't allocate USBVision struct", __func__); 1702 return -ENOMEM; 1703 } 1704 1705 if (dev->descriptor.bNumConfigurations > 1) { 1706 usbvision->bridgeType = BRIDGE_NT1004; 1707 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) { 1708 usbvision->bridgeType = BRIDGE_NT1005; 1709 } else { 1710 usbvision->bridgeType = BRIDGE_NT1003; 1711 } 1712 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1713 1714 mutex_lock(&usbvision->lock); 1715 1716 /* compute alternate max packet sizes */ 1717 uif = dev->actconfig->interface[0]; 1718 1719 usbvision->num_alt=uif->num_altsetting; 1720 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1721 usbvision->alt_max_pkt_size = kmalloc(32* 1722 usbvision->num_alt,GFP_KERNEL); 1723 if (usbvision->alt_max_pkt_size == NULL) { 1724 err("usbvision: out of memory!\n"); 1725 mutex_unlock(&usbvision->lock); 1726 return -ENOMEM; 1727 } 1728 1729 for (i = 0; i < usbvision->num_alt ; i++) { 1730 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1731 wMaxPacketSize); 1732 usbvision->alt_max_pkt_size[i] = 1733 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1734 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1735 usbvision->alt_max_pkt_size[i]); 1736 } 1737 1738 1739 usbvision->nr = usbvision_nr++; 1740 1741 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1742 if (usbvision->have_tuner) { 1743 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1744 } 1745 1746 usbvision->tuner_addr = ADDR_UNSET; 1747 1748 usbvision->DevModel = model; 1749 usbvision->remove_pending = 0; 1750 usbvision->iface = ifnum; 1751 usbvision->ifaceAlt = 0; 1752 usbvision->video_endp = endpoint->bEndpointAddress; 1753 usbvision->isocPacketSize = 0; 1754 usbvision->usb_bandwidth = 0; 1755 usbvision->user = 0; 1756 usbvision->streaming = Stream_Off; 1757 usbvision_register_video(usbvision); 1758 usbvision_configure_video(usbvision); 1759 mutex_unlock(&usbvision->lock); 1760 1761 1762 usb_set_intfdata (intf, usbvision); 1763 usbvision_create_sysfs(usbvision->vdev); 1764 1765 PDEBUG(DBG_PROBE, "success"); 1766 return 0; 1767} 1768 1769 1770/* 1771 * usbvision_disconnect() 1772 * 1773 * This procedure stops all driver activity, deallocates interface-private 1774 * structure (pointed by 'ptr') and after that driver should be removable 1775 * with no ill consequences. 1776 * 1777 */ 1778static void __devexit usbvision_disconnect(struct usb_interface *intf) 1779{ 1780 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1781 1782 PDEBUG(DBG_PROBE, ""); 1783 1784 if (usbvision == NULL) { 1785 err("%s: usb_get_intfdata() failed", __func__); 1786 return; 1787 } 1788 usb_set_intfdata (intf, NULL); 1789 1790 mutex_lock(&usbvision->lock); 1791 1792 // At this time we ask to cancel outstanding URBs 1793 usbvision_stop_isoc(usbvision); 1794 1795 if (usbvision->power) { 1796 usbvision_i2c_unregister(usbvision); 1797 usbvision_power_off(usbvision); 1798 } 1799 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1800 1801 usb_put_dev(usbvision->dev); 1802 usbvision->dev = NULL; // USB device is no more 1803 1804 mutex_unlock(&usbvision->lock); 1805 1806 if (usbvision->user) { 1807 printk(KERN_INFO "%s: In use, disconnect pending\n", 1808 __func__); 1809 wake_up_interruptible(&usbvision->wait_frame); 1810 wake_up_interruptible(&usbvision->wait_stream); 1811 } else { 1812 usbvision_release(usbvision); 1813 } 1814 1815 PDEBUG(DBG_PROBE, "success"); 1816} 1817 1818static struct usb_driver usbvision_driver = { 1819 .name = "usbvision", 1820 .id_table = usbvision_table, 1821 .probe = usbvision_probe, 1822 .disconnect = usbvision_disconnect 1823}; 1824 1825/* 1826 * usbvision_init() 1827 * 1828 * This code is run to initialize the driver. 1829 * 1830 */ 1831static int __init usbvision_init(void) 1832{ 1833 int errCode; 1834 1835 PDEBUG(DBG_PROBE, ""); 1836 1837 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 1838 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 1839 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 1840 1841 /* disable planar mode support unless compression enabled */ 1842 if (isocMode != ISOC_MODE_COMPRESS ) { 1843 // FIXME : not the right way to set supported flag 1844 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 1845 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 1846 } 1847 1848 errCode = usb_register(&usbvision_driver); 1849 1850 if (errCode == 0) { 1851 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 1852 PDEBUG(DBG_PROBE, "success"); 1853 } 1854 return errCode; 1855} 1856 1857static void __exit usbvision_exit(void) 1858{ 1859 PDEBUG(DBG_PROBE, ""); 1860 1861 usb_deregister(&usbvision_driver); 1862 PDEBUG(DBG_PROBE, "success"); 1863} 1864 1865module_init(usbvision_init); 1866module_exit(usbvision_exit); 1867 1868/* 1869 * Overrides for Emacs so that we follow Linus's tabbing style. 1870 * --------------------------------------------------------------------------- 1871 * Local variables: 1872 * c-basic-offset: 8 1873 * End: 1874 */ 1875