usbvision-video.c revision 1df795370c1392a026c63816368108187aec2ec1
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#include "usbvision.h" 73#include "usbvision-cards.h" 74 75#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\ 76 Dwaine Garden <DwaineGarden@rogers.com>" 77#define DRIVER_NAME "usbvision" 78#define DRIVER_ALIAS "USBVision" 79#define DRIVER_DESC "USBVision USB Video Device Driver for Linux" 80#define DRIVER_LICENSE "GPL" 81#define USBVISION_DRIVER_VERSION_MAJOR 0 82#define USBVISION_DRIVER_VERSION_MINOR 9 83#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9 84#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\ 85USBVISION_DRIVER_VERSION_MINOR,\ 86USBVISION_DRIVER_VERSION_PATCHLEVEL) 87#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\ 88 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\ 89 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL) 90 91#define ENABLE_HEXDUMP 0 /* Enable if you need it */ 92 93 94#ifdef USBVISION_DEBUG 95 #define PDEBUG(level, fmt, args...) { \ 96 if (video_debug & (level)) \ 97 printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ 98 __func__, __LINE__ , ## args); \ 99 } 100#else 101 #define PDEBUG(level, fmt, args...) do {} while(0) 102#endif 103 104#define DBG_IO 1<<1 105#define DBG_PROBE 1<<2 106#define DBG_MMAP 1<<3 107 108//String operations 109#define rmspace(str) while(*str==' ') str++; 110#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++; 111 112 113/* sequential number of usbvision device */ 114static int usbvision_nr; 115 116static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = { 117 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" }, 118 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" }, 119 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" }, 120 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" }, 121 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" }, 122 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" }, 123 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 ! 124 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" } 125}; 126 127/* Function prototypes */ 128static void usbvision_release(struct usb_usbvision *usbvision); 129 130/* Default initialization of device driver parameters */ 131/* Set the default format for ISOC endpoint */ 132static int isocMode = ISOC_MODE_COMPRESS; 133/* Set the default Debug Mode of the device driver */ 134static int video_debug; 135/* Set the default device to power on at startup */ 136static int PowerOnAtOpen = 1; 137/* Sequential Number of Video Device */ 138static int video_nr = -1; 139/* Sequential Number of Radio Device */ 140static int radio_nr = -1; 141/* Sequential Number of VBI Device */ 142static int vbi_nr = -1; 143 144/* Grab parameters for the device driver */ 145 146/* Showing parameters under SYSFS */ 147module_param(isocMode, int, 0444); 148module_param(video_debug, int, 0444); 149module_param(PowerOnAtOpen, int, 0444); 150module_param(video_nr, int, 0444); 151module_param(radio_nr, int, 0444); 152module_param(vbi_nr, int, 0444); 153 154MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)"); 155MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)"); 156MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)"); 157MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)"); 158MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)"); 159MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)"); 160 161 162// Misc stuff 163MODULE_AUTHOR(DRIVER_AUTHOR); 164MODULE_DESCRIPTION(DRIVER_DESC); 165MODULE_LICENSE(DRIVER_LICENSE); 166MODULE_VERSION(USBVISION_VERSION_STRING); 167MODULE_ALIAS(DRIVER_ALIAS); 168 169 170/*****************************************************************************/ 171/* SYSFS Code - Copied from the stv680.c usb module. */ 172/* Device information is located at /sys/class/video4linux/video0 */ 173/* Device parameters information is located at /sys/module/usbvision */ 174/* Device USB Information is located at */ 175/* /sys/bus/usb/drivers/USBVision Video Grabber */ 176/*****************************************************************************/ 177 178#define YES_NO(x) ((x) ? "Yes" : "No") 179 180static inline struct usb_usbvision *cd_to_usbvision(struct device *cd) 181{ 182 struct video_device *vdev = 183 container_of(cd, struct video_device, dev); 184 return video_get_drvdata(vdev); 185} 186 187static ssize_t show_version(struct device *cd, 188 struct device_attribute *attr, char *buf) 189{ 190 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING); 191} 192static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); 193 194static ssize_t show_model(struct device *cd, 195 struct device_attribute *attr, char *buf) 196{ 197 struct video_device *vdev = 198 container_of(cd, struct video_device, dev); 199 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 200 return sprintf(buf, "%s\n", 201 usbvision_device_data[usbvision->DevModel].ModelString); 202} 203static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); 204 205static ssize_t show_hue(struct device *cd, 206 struct device_attribute *attr, char *buf) 207{ 208 struct video_device *vdev = 209 container_of(cd, struct video_device, dev); 210 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 211 struct v4l2_control ctrl; 212 ctrl.id = V4L2_CID_HUE; 213 ctrl.value = 0; 214 if(usbvision->user) 215 call_all(usbvision, core, g_ctrl, &ctrl); 216 return sprintf(buf, "%d\n", ctrl.value); 217} 218static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); 219 220static ssize_t show_contrast(struct device *cd, 221 struct device_attribute *attr, char *buf) 222{ 223 struct video_device *vdev = 224 container_of(cd, struct video_device, dev); 225 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 226 struct v4l2_control ctrl; 227 ctrl.id = V4L2_CID_CONTRAST; 228 ctrl.value = 0; 229 if(usbvision->user) 230 call_all(usbvision, core, g_ctrl, &ctrl); 231 return sprintf(buf, "%d\n", ctrl.value); 232} 233static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); 234 235static ssize_t show_brightness(struct device *cd, 236 struct device_attribute *attr, char *buf) 237{ 238 struct video_device *vdev = 239 container_of(cd, struct video_device, dev); 240 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 241 struct v4l2_control ctrl; 242 ctrl.id = V4L2_CID_BRIGHTNESS; 243 ctrl.value = 0; 244 if(usbvision->user) 245 call_all(usbvision, core, g_ctrl, &ctrl); 246 return sprintf(buf, "%d\n", ctrl.value); 247} 248static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); 249 250static ssize_t show_saturation(struct device *cd, 251 struct device_attribute *attr, char *buf) 252{ 253 struct video_device *vdev = 254 container_of(cd, struct video_device, dev); 255 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 256 struct v4l2_control ctrl; 257 ctrl.id = V4L2_CID_SATURATION; 258 ctrl.value = 0; 259 if(usbvision->user) 260 call_all(usbvision, core, g_ctrl, &ctrl); 261 return sprintf(buf, "%d\n", ctrl.value); 262} 263static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); 264 265static ssize_t show_streaming(struct device *cd, 266 struct device_attribute *attr, char *buf) 267{ 268 struct video_device *vdev = 269 container_of(cd, struct video_device, dev); 270 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 271 return sprintf(buf, "%s\n", 272 YES_NO(usbvision->streaming==Stream_On?1:0)); 273} 274static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL); 275 276static ssize_t show_compression(struct device *cd, 277 struct device_attribute *attr, char *buf) 278{ 279 struct video_device *vdev = 280 container_of(cd, struct video_device, dev); 281 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 282 return sprintf(buf, "%s\n", 283 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS)); 284} 285static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL); 286 287static ssize_t show_device_bridge(struct device *cd, 288 struct device_attribute *attr, char *buf) 289{ 290 struct video_device *vdev = 291 container_of(cd, struct video_device, dev); 292 struct usb_usbvision *usbvision = video_get_drvdata(vdev); 293 return sprintf(buf, "%d\n", usbvision->bridgeType); 294} 295static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL); 296 297static void usbvision_create_sysfs(struct video_device *vdev) 298{ 299 int res; 300 if (!vdev) 301 return; 302 do { 303 res = device_create_file(&vdev->dev, &dev_attr_version); 304 if (res<0) 305 break; 306 res = device_create_file(&vdev->dev, &dev_attr_model); 307 if (res<0) 308 break; 309 res = device_create_file(&vdev->dev, &dev_attr_hue); 310 if (res<0) 311 break; 312 res = device_create_file(&vdev->dev, &dev_attr_contrast); 313 if (res<0) 314 break; 315 res = device_create_file(&vdev->dev, &dev_attr_brightness); 316 if (res<0) 317 break; 318 res = device_create_file(&vdev->dev, &dev_attr_saturation); 319 if (res<0) 320 break; 321 res = device_create_file(&vdev->dev, &dev_attr_streaming); 322 if (res<0) 323 break; 324 res = device_create_file(&vdev->dev, &dev_attr_compression); 325 if (res<0) 326 break; 327 res = device_create_file(&vdev->dev, &dev_attr_bridge); 328 if (res>=0) 329 return; 330 } while (0); 331 332 dev_err(&vdev->dev, "%s error: %d\n", __func__, res); 333} 334 335static void usbvision_remove_sysfs(struct video_device *vdev) 336{ 337 if (vdev) { 338 device_remove_file(&vdev->dev, &dev_attr_version); 339 device_remove_file(&vdev->dev, &dev_attr_model); 340 device_remove_file(&vdev->dev, &dev_attr_hue); 341 device_remove_file(&vdev->dev, &dev_attr_contrast); 342 device_remove_file(&vdev->dev, &dev_attr_brightness); 343 device_remove_file(&vdev->dev, &dev_attr_saturation); 344 device_remove_file(&vdev->dev, &dev_attr_streaming); 345 device_remove_file(&vdev->dev, &dev_attr_compression); 346 device_remove_file(&vdev->dev, &dev_attr_bridge); 347 } 348} 349 350/* 351 * usbvision_open() 352 * 353 * This is part of Video 4 Linux API. The driver can be opened by one 354 * client only (checks internal counter 'usbvision->user'). The procedure 355 * then allocates buffers needed for video processing. 356 * 357 */ 358static int usbvision_v4l2_open(struct file *file) 359{ 360 struct usb_usbvision *usbvision = video_drvdata(file); 361 int errCode = 0; 362 363 PDEBUG(DBG_IO, "open"); 364 365 lock_kernel(); 366 usbvision_reset_powerOffTimer(usbvision); 367 368 if (usbvision->user) 369 errCode = -EBUSY; 370 else { 371 /* Allocate memory for the scratch ring buffer */ 372 errCode = usbvision_scratch_alloc(usbvision); 373 if (isocMode==ISOC_MODE_COMPRESS) { 374 /* Allocate intermediate decompression buffers 375 only if needed */ 376 errCode = usbvision_decompress_alloc(usbvision); 377 } 378 if (errCode) { 379 /* Deallocate all buffers if trouble */ 380 usbvision_scratch_free(usbvision); 381 usbvision_decompress_free(usbvision); 382 } 383 } 384 385 /* If so far no errors then we shall start the camera */ 386 if (!errCode) { 387 mutex_lock(&usbvision->lock); 388 if (usbvision->power == 0) { 389 usbvision_power_on(usbvision); 390 usbvision_i2c_register(usbvision); 391 } 392 393 /* Send init sequence only once, it's large! */ 394 if (!usbvision->initialized) { 395 int setup_ok = 0; 396 setup_ok = usbvision_setup(usbvision,isocMode); 397 if (setup_ok) 398 usbvision->initialized = 1; 399 else 400 errCode = -EBUSY; 401 } 402 403 if (!errCode) { 404 usbvision_begin_streaming(usbvision); 405 errCode = usbvision_init_isoc(usbvision); 406 /* device must be initialized before isoc transfer */ 407 usbvision_muxsel(usbvision,0); 408 usbvision->user++; 409 } else { 410 if (PowerOnAtOpen) { 411 usbvision_i2c_unregister(usbvision); 412 usbvision_power_off(usbvision); 413 usbvision->initialized = 0; 414 } 415 } 416 mutex_unlock(&usbvision->lock); 417 } 418 419 /* prepare queues */ 420 usbvision_empty_framequeues(usbvision); 421 422 PDEBUG(DBG_IO, "success"); 423 unlock_kernel(); 424 return errCode; 425} 426 427/* 428 * usbvision_v4l2_close() 429 * 430 * This is part of Video 4 Linux API. The procedure 431 * stops streaming and deallocates all buffers that were earlier 432 * allocated in usbvision_v4l2_open(). 433 * 434 */ 435static int usbvision_v4l2_close(struct file *file) 436{ 437 struct usb_usbvision *usbvision = video_drvdata(file); 438 439 PDEBUG(DBG_IO, "close"); 440 mutex_lock(&usbvision->lock); 441 442 usbvision_audio_off(usbvision); 443 usbvision_restart_isoc(usbvision); 444 usbvision_stop_isoc(usbvision); 445 446 usbvision_decompress_free(usbvision); 447 usbvision_frames_free(usbvision); 448 usbvision_empty_framequeues(usbvision); 449 usbvision_scratch_free(usbvision); 450 451 usbvision->user--; 452 453 if (PowerOnAtOpen) { 454 /* power off in a little while 455 to avoid off/on every close/open short sequences */ 456 usbvision_set_powerOffTimer(usbvision); 457 usbvision->initialized = 0; 458 } 459 460 mutex_unlock(&usbvision->lock); 461 462 if (usbvision->remove_pending) { 463 printk(KERN_INFO "%s: Final disconnect\n", __func__); 464 usbvision_release(usbvision); 465 } 466 467 PDEBUG(DBG_IO, "success"); 468 return 0; 469} 470 471 472/* 473 * usbvision_ioctl() 474 * 475 * This is part of Video 4 Linux API. The procedure handles ioctl() calls. 476 * 477 */ 478#ifdef CONFIG_VIDEO_ADV_DEBUG 479static int vidioc_g_register (struct file *file, void *priv, 480 struct v4l2_dbg_register *reg) 481{ 482 struct usb_usbvision *usbvision = video_drvdata(file); 483 int errCode; 484 485 if (!v4l2_chip_match_host(®->match)) 486 return -EINVAL; 487 /* NT100x has a 8-bit register space */ 488 errCode = usbvision_read_reg(usbvision, reg->reg&0xff); 489 if (errCode < 0) { 490 dev_err(&usbvision->vdev->dev, 491 "%s: VIDIOC_DBG_G_REGISTER failed: error %d\n", 492 __func__, errCode); 493 return errCode; 494 } 495 reg->val = errCode; 496 reg->size = 1; 497 return 0; 498} 499 500static int vidioc_s_register (struct file *file, void *priv, 501 struct v4l2_dbg_register *reg) 502{ 503 struct usb_usbvision *usbvision = video_drvdata(file); 504 int errCode; 505 506 if (!v4l2_chip_match_host(®->match)) 507 return -EINVAL; 508 /* NT100x has a 8-bit register space */ 509 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 510 if (errCode < 0) { 511 dev_err(&usbvision->vdev->dev, 512 "%s: VIDIOC_DBG_S_REGISTER failed: error %d\n", 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 usb_make_path(usbvision->dev, vc->bus_info, sizeof(vc->bus_info)); 530 vc->version = USBVISION_DRIVER_VERSION; 531 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 532 V4L2_CAP_AUDIO | 533 V4L2_CAP_READWRITE | 534 V4L2_CAP_STREAMING | 535 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 536 return 0; 537} 538 539static int vidioc_enum_input (struct file *file, void *priv, 540 struct v4l2_input *vi) 541{ 542 struct usb_usbvision *usbvision = video_drvdata(file); 543 int chan; 544 545 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 546 return -EINVAL; 547 if (usbvision->have_tuner) { 548 chan = vi->index; 549 } else { 550 chan = vi->index + 1; /*skip Television string*/ 551 } 552 /* Determine the requested input characteristics 553 specific for each usbvision card model */ 554 switch(chan) { 555 case 0: 556 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 557 strcpy(vi->name, "White Video Input"); 558 } else { 559 strcpy(vi->name, "Television"); 560 vi->type = V4L2_INPUT_TYPE_TUNER; 561 vi->audioset = 1; 562 vi->tuner = chan; 563 vi->std = USBVISION_NORMS; 564 } 565 break; 566 case 1: 567 vi->type = V4L2_INPUT_TYPE_CAMERA; 568 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 569 strcpy(vi->name, "Green Video Input"); 570 } else { 571 strcpy(vi->name, "Composite Video Input"); 572 } 573 vi->std = V4L2_STD_PAL; 574 break; 575 case 2: 576 vi->type = V4L2_INPUT_TYPE_CAMERA; 577 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 578 strcpy(vi->name, "Yellow Video Input"); 579 } else { 580 strcpy(vi->name, "S-Video Input"); 581 } 582 vi->std = V4L2_STD_PAL; 583 break; 584 case 3: 585 vi->type = V4L2_INPUT_TYPE_CAMERA; 586 strcpy(vi->name, "Red Video Input"); 587 vi->std = V4L2_STD_PAL; 588 break; 589 } 590 return 0; 591} 592 593static int vidioc_g_input (struct file *file, void *priv, unsigned int *input) 594{ 595 struct usb_usbvision *usbvision = video_drvdata(file); 596 597 *input = usbvision->ctl_input; 598 return 0; 599} 600 601static int vidioc_s_input (struct file *file, void *priv, unsigned int input) 602{ 603 struct usb_usbvision *usbvision = video_drvdata(file); 604 605 if ((input >= usbvision->video_inputs) || (input < 0) ) 606 return -EINVAL; 607 608 mutex_lock(&usbvision->lock); 609 usbvision_muxsel(usbvision, input); 610 usbvision_set_input(usbvision); 611 usbvision_set_output(usbvision, 612 usbvision->curwidth, 613 usbvision->curheight); 614 mutex_unlock(&usbvision->lock); 615 return 0; 616} 617 618static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id) 619{ 620 struct usb_usbvision *usbvision = video_drvdata(file); 621 622 usbvision->tvnormId=*id; 623 624 mutex_lock(&usbvision->lock); 625 call_all(usbvision, tuner, s_std, usbvision->tvnormId); 626 mutex_unlock(&usbvision->lock); 627 /* propagate the change to the decoder */ 628 usbvision_muxsel(usbvision, usbvision->ctl_input); 629 630 return 0; 631} 632 633static int vidioc_g_tuner (struct file *file, void *priv, 634 struct v4l2_tuner *vt) 635{ 636 struct usb_usbvision *usbvision = video_drvdata(file); 637 638 if (!usbvision->have_tuner || vt->index) // Only tuner 0 639 return -EINVAL; 640 if(usbvision->radio) { 641 strcpy(vt->name, "Radio"); 642 vt->type = V4L2_TUNER_RADIO; 643 } else { 644 strcpy(vt->name, "Television"); 645 } 646 /* Let clients fill in the remainder of this struct */ 647 call_all(usbvision, tuner, g_tuner, vt); 648 649 return 0; 650} 651 652static int vidioc_s_tuner (struct file *file, void *priv, 653 struct v4l2_tuner *vt) 654{ 655 struct usb_usbvision *usbvision = video_drvdata(file); 656 657 // Only no or one tuner for now 658 if (!usbvision->have_tuner || vt->index) 659 return -EINVAL; 660 /* let clients handle this */ 661 call_all(usbvision, tuner, s_tuner, vt); 662 663 return 0; 664} 665 666static int vidioc_g_frequency (struct file *file, void *priv, 667 struct v4l2_frequency *freq) 668{ 669 struct usb_usbvision *usbvision = video_drvdata(file); 670 671 freq->tuner = 0; // Only one tuner 672 if(usbvision->radio) { 673 freq->type = V4L2_TUNER_RADIO; 674 } else { 675 freq->type = V4L2_TUNER_ANALOG_TV; 676 } 677 freq->frequency = usbvision->freq; 678 679 return 0; 680} 681 682static int vidioc_s_frequency (struct file *file, void *priv, 683 struct v4l2_frequency *freq) 684{ 685 struct usb_usbvision *usbvision = video_drvdata(file); 686 687 // Only no or one tuner for now 688 if (!usbvision->have_tuner || freq->tuner) 689 return -EINVAL; 690 691 usbvision->freq = freq->frequency; 692 call_all(usbvision, tuner, s_frequency, freq); 693 694 return 0; 695} 696 697static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a) 698{ 699 struct usb_usbvision *usbvision = video_drvdata(file); 700 701 memset(a,0,sizeof(*a)); 702 if(usbvision->radio) { 703 strcpy(a->name,"Radio"); 704 } else { 705 strcpy(a->name, "TV"); 706 } 707 708 return 0; 709} 710 711static int vidioc_s_audio (struct file *file, void *fh, 712 struct v4l2_audio *a) 713{ 714 if(a->index) { 715 return -EINVAL; 716 } 717 718 return 0; 719} 720 721static int vidioc_queryctrl (struct file *file, void *priv, 722 struct v4l2_queryctrl *ctrl) 723{ 724 struct usb_usbvision *usbvision = video_drvdata(file); 725 int id=ctrl->id; 726 727 memset(ctrl,0,sizeof(*ctrl)); 728 ctrl->id=id; 729 730 call_all(usbvision, core, queryctrl, ctrl); 731 732 if (!ctrl->type) 733 return -EINVAL; 734 735 return 0; 736} 737 738static int vidioc_g_ctrl (struct file *file, void *priv, 739 struct v4l2_control *ctrl) 740{ 741 struct usb_usbvision *usbvision = video_drvdata(file); 742 call_all(usbvision, core, g_ctrl, ctrl); 743 744 return 0; 745} 746 747static int vidioc_s_ctrl (struct file *file, void *priv, 748 struct v4l2_control *ctrl) 749{ 750 struct usb_usbvision *usbvision = video_drvdata(file); 751 call_all(usbvision, core, s_ctrl, ctrl); 752 753 return 0; 754} 755 756static int vidioc_reqbufs (struct file *file, 757 void *priv, struct v4l2_requestbuffers *vr) 758{ 759 struct usb_usbvision *usbvision = video_drvdata(file); 760 int ret; 761 762 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 763 764 /* Check input validity: 765 the user must do a VIDEO CAPTURE and MMAP method. */ 766 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 767 (vr->memory != V4L2_MEMORY_MMAP)) 768 return -EINVAL; 769 770 if(usbvision->streaming == Stream_On) { 771 if ((ret = usbvision_stream_interrupt(usbvision))) 772 return ret; 773 } 774 775 usbvision_frames_free(usbvision); 776 usbvision_empty_framequeues(usbvision); 777 vr->count = usbvision_frames_alloc(usbvision,vr->count); 778 779 usbvision->curFrame = NULL; 780 781 return 0; 782} 783 784static int vidioc_querybuf (struct file *file, 785 void *priv, struct v4l2_buffer *vb) 786{ 787 struct usb_usbvision *usbvision = video_drvdata(file); 788 struct usbvision_frame *frame; 789 790 /* FIXME : must control 791 that buffers are mapped (VIDIOC_REQBUFS has been called) */ 792 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 793 return -EINVAL; 794 } 795 if(vb->index>=usbvision->num_frames) { 796 return -EINVAL; 797 } 798 /* Updating the corresponding frame state */ 799 vb->flags = 0; 800 frame = &usbvision->frame[vb->index]; 801 if(frame->grabstate >= FrameState_Ready) 802 vb->flags |= V4L2_BUF_FLAG_QUEUED; 803 if(frame->grabstate >= FrameState_Done) 804 vb->flags |= V4L2_BUF_FLAG_DONE; 805 if(frame->grabstate == FrameState_Unused) 806 vb->flags |= V4L2_BUF_FLAG_MAPPED; 807 vb->memory = V4L2_MEMORY_MMAP; 808 809 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 810 811 vb->memory = V4L2_MEMORY_MMAP; 812 vb->field = V4L2_FIELD_NONE; 813 vb->length = usbvision->curwidth* 814 usbvision->curheight* 815 usbvision->palette.bytes_per_pixel; 816 vb->timestamp = usbvision->frame[vb->index].timestamp; 817 vb->sequence = usbvision->frame[vb->index].sequence; 818 return 0; 819} 820 821static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 822{ 823 struct usb_usbvision *usbvision = video_drvdata(file); 824 struct usbvision_frame *frame; 825 unsigned long lock_flags; 826 827 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ 828 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 829 return -EINVAL; 830 } 831 if(vb->index>=usbvision->num_frames) { 832 return -EINVAL; 833 } 834 835 frame = &usbvision->frame[vb->index]; 836 837 if (frame->grabstate != FrameState_Unused) { 838 return -EAGAIN; 839 } 840 841 /* Mark it as ready and enqueue frame */ 842 frame->grabstate = FrameState_Ready; 843 frame->scanstate = ScanState_Scanning; 844 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 845 846 vb->flags &= ~V4L2_BUF_FLAG_DONE; 847 848 /* set v4l2_format index */ 849 frame->v4l2_format = usbvision->palette; 850 851 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 852 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 853 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 854 855 return 0; 856} 857 858static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 859{ 860 struct usb_usbvision *usbvision = video_drvdata(file); 861 int ret; 862 struct usbvision_frame *f; 863 unsigned long lock_flags; 864 865 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 866 return -EINVAL; 867 868 if (list_empty(&(usbvision->outqueue))) { 869 if (usbvision->streaming == Stream_Idle) 870 return -EINVAL; 871 ret = wait_event_interruptible 872 (usbvision->wait_frame, 873 !list_empty(&(usbvision->outqueue))); 874 if (ret) 875 return ret; 876 } 877 878 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 879 f = list_entry(usbvision->outqueue.next, 880 struct usbvision_frame, frame); 881 list_del(usbvision->outqueue.next); 882 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 883 884 f->grabstate = FrameState_Unused; 885 886 vb->memory = V4L2_MEMORY_MMAP; 887 vb->flags = V4L2_BUF_FLAG_MAPPED | 888 V4L2_BUF_FLAG_QUEUED | 889 V4L2_BUF_FLAG_DONE; 890 vb->index = f->index; 891 vb->sequence = f->sequence; 892 vb->timestamp = f->timestamp; 893 vb->field = V4L2_FIELD_NONE; 894 vb->bytesused = f->scanlength; 895 896 return 0; 897} 898 899static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) 900{ 901 struct usb_usbvision *usbvision = video_drvdata(file); 902 903 usbvision->streaming = Stream_On; 904 call_all(usbvision, video, s_stream, 1); 905 906 return 0; 907} 908 909static int vidioc_streamoff(struct file *file, 910 void *priv, enum v4l2_buf_type type) 911{ 912 struct usb_usbvision *usbvision = video_drvdata(file); 913 914 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 915 return -EINVAL; 916 917 if(usbvision->streaming == Stream_On) { 918 usbvision_stream_interrupt(usbvision); 919 /* Stop all video streamings */ 920 call_all(usbvision, video, s_stream, 0); 921 } 922 usbvision_empty_framequeues(usbvision); 923 924 return 0; 925} 926 927static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, 928 struct v4l2_fmtdesc *vfd) 929{ 930 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 931 return -EINVAL; 932 } 933 vfd->flags = 0; 934 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 935 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 936 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 937 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 938 return 0; 939} 940 941static int vidioc_g_fmt_vid_cap (struct file *file, void *priv, 942 struct v4l2_format *vf) 943{ 944 struct usb_usbvision *usbvision = video_drvdata(file); 945 vf->fmt.pix.width = usbvision->curwidth; 946 vf->fmt.pix.height = usbvision->curheight; 947 vf->fmt.pix.pixelformat = usbvision->palette.format; 948 vf->fmt.pix.bytesperline = 949 usbvision->curwidth*usbvision->palette.bytes_per_pixel; 950 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 951 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 952 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 953 954 return 0; 955} 956 957static int vidioc_try_fmt_vid_cap (struct file *file, void *priv, 958 struct v4l2_format *vf) 959{ 960 struct usb_usbvision *usbvision = video_drvdata(file); 961 int formatIdx; 962 963 /* Find requested format in available ones */ 964 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 965 if(vf->fmt.pix.pixelformat == 966 usbvision_v4l2_format[formatIdx].format) { 967 usbvision->palette = usbvision_v4l2_format[formatIdx]; 968 break; 969 } 970 } 971 /* robustness */ 972 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 973 return -EINVAL; 974 } 975 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 976 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 977 978 vf->fmt.pix.bytesperline = vf->fmt.pix.width* 979 usbvision->palette.bytes_per_pixel; 980 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 981 982 return 0; 983} 984 985static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 986 struct v4l2_format *vf) 987{ 988 struct usb_usbvision *usbvision = video_drvdata(file); 989 int ret; 990 991 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) { 992 return ret; 993 } 994 995 /* stop io in case it is already in progress */ 996 if(usbvision->streaming == Stream_On) { 997 if ((ret = usbvision_stream_interrupt(usbvision))) 998 return ret; 999 } 1000 usbvision_frames_free(usbvision); 1001 usbvision_empty_framequeues(usbvision); 1002 1003 usbvision->curFrame = NULL; 1004 1005 /* by now we are committed to the new data... */ 1006 mutex_lock(&usbvision->lock); 1007 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1008 mutex_unlock(&usbvision->lock); 1009 1010 return 0; 1011} 1012 1013static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1014 size_t count, loff_t *ppos) 1015{ 1016 struct usb_usbvision *usbvision = video_drvdata(file); 1017 int noblock = file->f_flags & O_NONBLOCK; 1018 unsigned long lock_flags; 1019 1020 int ret,i; 1021 struct usbvision_frame *frame; 1022 1023 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, 1024 (unsigned long)count, noblock); 1025 1026 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1027 return -EFAULT; 1028 1029 /* This entry point is compatible with the mmap routines 1030 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF 1031 to get frames or call read on the device. */ 1032 if(!usbvision->num_frames) { 1033 /* First, allocate some frames to work with 1034 if this has not been done with VIDIOC_REQBUF */ 1035 usbvision_frames_free(usbvision); 1036 usbvision_empty_framequeues(usbvision); 1037 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1038 } 1039 1040 if(usbvision->streaming != Stream_On) { 1041 /* no stream is running, make it running ! */ 1042 usbvision->streaming = Stream_On; 1043 call_all(usbvision, video, s_stream, 1); 1044 } 1045 1046 /* Then, enqueue as many frames as possible 1047 (like a user of VIDIOC_QBUF would do) */ 1048 for(i=0;i<usbvision->num_frames;i++) { 1049 frame = &usbvision->frame[i]; 1050 if(frame->grabstate == FrameState_Unused) { 1051 /* Mark it as ready and enqueue frame */ 1052 frame->grabstate = FrameState_Ready; 1053 frame->scanstate = ScanState_Scanning; 1054 /* Accumulated in usbvision_parse_data() */ 1055 frame->scanlength = 0; 1056 1057 /* set v4l2_format index */ 1058 frame->v4l2_format = usbvision->palette; 1059 1060 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1061 list_add_tail(&frame->frame, &usbvision->inqueue); 1062 spin_unlock_irqrestore(&usbvision->queue_lock, 1063 lock_flags); 1064 } 1065 } 1066 1067 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1068 if (list_empty(&(usbvision->outqueue))) { 1069 if(noblock) 1070 return -EAGAIN; 1071 1072 ret = wait_event_interruptible 1073 (usbvision->wait_frame, 1074 !list_empty(&(usbvision->outqueue))); 1075 if (ret) 1076 return ret; 1077 } 1078 1079 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1080 frame = list_entry(usbvision->outqueue.next, 1081 struct usbvision_frame, frame); 1082 list_del(usbvision->outqueue.next); 1083 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1084 1085 /* An error returns an empty frame */ 1086 if (frame->grabstate == FrameState_Error) { 1087 frame->bytes_read = 0; 1088 return 0; 1089 } 1090 1091 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", 1092 __func__, 1093 frame->index, frame->bytes_read, frame->scanlength); 1094 1095 /* copy bytes to user space; we allow for partials reads */ 1096 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1097 count = frame->scanlength - frame->bytes_read; 1098 1099 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1100 return -EFAULT; 1101 } 1102 1103 frame->bytes_read += count; 1104 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", 1105 __func__, 1106 (unsigned long)count, frame->bytes_read); 1107 1108 /* For now, forget the frame if it has not been read in one shot. */ 1109/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1110 frame->bytes_read = 0; 1111 1112 /* Mark it as available to be used again. */ 1113 frame->grabstate = FrameState_Unused; 1114/* } */ 1115 1116 return count; 1117} 1118 1119static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1120{ 1121 unsigned long size = vma->vm_end - vma->vm_start, 1122 start = vma->vm_start; 1123 void *pos; 1124 u32 i; 1125 struct usb_usbvision *usbvision = video_drvdata(file); 1126 1127 PDEBUG(DBG_MMAP, "mmap"); 1128 1129 mutex_lock(&usbvision->lock); 1130 1131 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1132 mutex_unlock(&usbvision->lock); 1133 return -EFAULT; 1134 } 1135 1136 if (!(vma->vm_flags & VM_WRITE) || 1137 size != PAGE_ALIGN(usbvision->max_frame_size)) { 1138 mutex_unlock(&usbvision->lock); 1139 return -EINVAL; 1140 } 1141 1142 for (i = 0; i < usbvision->num_frames; i++) { 1143 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == 1144 vma->vm_pgoff) 1145 break; 1146 } 1147 if (i == usbvision->num_frames) { 1148 PDEBUG(DBG_MMAP, 1149 "mmap: user supplied mapping address is out of range"); 1150 mutex_unlock(&usbvision->lock); 1151 return -EINVAL; 1152 } 1153 1154 /* VM_IO is eventually going to replace PageReserved altogether */ 1155 vma->vm_flags |= VM_IO; 1156 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1157 1158 pos = usbvision->frame[i].data; 1159 while (size > 0) { 1160 1161 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1162 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1163 mutex_unlock(&usbvision->lock); 1164 return -EAGAIN; 1165 } 1166 start += PAGE_SIZE; 1167 pos += PAGE_SIZE; 1168 size -= PAGE_SIZE; 1169 } 1170 1171 mutex_unlock(&usbvision->lock); 1172 return 0; 1173} 1174 1175 1176/* 1177 * Here comes the stuff for radio on usbvision based devices 1178 * 1179 */ 1180static int usbvision_radio_open(struct file *file) 1181{ 1182 struct usb_usbvision *usbvision = video_drvdata(file); 1183 int errCode = 0; 1184 1185 PDEBUG(DBG_IO, "%s:", __func__); 1186 1187 mutex_lock(&usbvision->lock); 1188 1189 if (usbvision->user) { 1190 dev_err(&usbvision->rdev->dev, 1191 "%s: Someone tried to open an already opened USBVision Radio!\n", 1192 __func__); 1193 errCode = -EBUSY; 1194 } 1195 else { 1196 if(PowerOnAtOpen) { 1197 usbvision_reset_powerOffTimer(usbvision); 1198 if (usbvision->power == 0) { 1199 usbvision_power_on(usbvision); 1200 usbvision_i2c_register(usbvision); 1201 } 1202 } 1203 1204 /* Alternate interface 1 is is the biggest frame size */ 1205 errCode = usbvision_set_alternate(usbvision); 1206 if (errCode < 0) { 1207 usbvision->last_error = errCode; 1208 errCode = -EBUSY; 1209 goto out; 1210 } 1211 1212 // If so far no errors then we shall start the radio 1213 usbvision->radio = 1; 1214 call_all(usbvision, tuner, s_radio); 1215 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1216 usbvision->user++; 1217 } 1218 1219 if (errCode) { 1220 if (PowerOnAtOpen) { 1221 usbvision_i2c_unregister(usbvision); 1222 usbvision_power_off(usbvision); 1223 usbvision->initialized = 0; 1224 } 1225 } 1226out: 1227 mutex_unlock(&usbvision->lock); 1228 return errCode; 1229} 1230 1231 1232static int usbvision_radio_close(struct file *file) 1233{ 1234 struct usb_usbvision *usbvision = video_drvdata(file); 1235 int errCode = 0; 1236 1237 PDEBUG(DBG_IO, ""); 1238 1239 mutex_lock(&usbvision->lock); 1240 1241 /* Set packet size to 0 */ 1242 usbvision->ifaceAlt=0; 1243 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1244 usbvision->ifaceAlt); 1245 1246 usbvision_audio_off(usbvision); 1247 usbvision->radio=0; 1248 usbvision->user--; 1249 1250 if (PowerOnAtOpen) { 1251 usbvision_set_powerOffTimer(usbvision); 1252 usbvision->initialized = 0; 1253 } 1254 1255 mutex_unlock(&usbvision->lock); 1256 1257 if (usbvision->remove_pending) { 1258 printk(KERN_INFO "%s: Final disconnect\n", __func__); 1259 usbvision_release(usbvision); 1260 } 1261 1262 PDEBUG(DBG_IO, "success"); 1263 return errCode; 1264} 1265 1266/* 1267 * Here comes the stuff for vbi on usbvision based devices 1268 * 1269 */ 1270static int usbvision_vbi_open(struct file *file) 1271{ 1272 /* TODO */ 1273 return -ENODEV; 1274} 1275 1276static int usbvision_vbi_close(struct file *file) 1277{ 1278 /* TODO */ 1279 return -ENODEV; 1280} 1281 1282static long usbvision_do_vbi_ioctl(struct file *file, 1283 unsigned int cmd, void *arg) 1284{ 1285 /* TODO */ 1286 return -ENOIOCTLCMD; 1287} 1288 1289static long usbvision_vbi_ioctl(struct file *file, 1290 unsigned int cmd, unsigned long arg) 1291{ 1292 return video_usercopy(file, cmd, arg, usbvision_do_vbi_ioctl); 1293} 1294 1295 1296// 1297// Video registration stuff 1298// 1299 1300// Video template 1301static const struct v4l2_file_operations usbvision_fops = { 1302 .owner = THIS_MODULE, 1303 .open = usbvision_v4l2_open, 1304 .release = usbvision_v4l2_close, 1305 .read = usbvision_v4l2_read, 1306 .mmap = usbvision_v4l2_mmap, 1307 .ioctl = video_ioctl2, 1308/* .poll = video_poll, */ 1309}; 1310 1311static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { 1312 .vidioc_querycap = vidioc_querycap, 1313 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1314 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1315 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1316 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1317 .vidioc_reqbufs = vidioc_reqbufs, 1318 .vidioc_querybuf = vidioc_querybuf, 1319 .vidioc_qbuf = vidioc_qbuf, 1320 .vidioc_dqbuf = vidioc_dqbuf, 1321 .vidioc_s_std = vidioc_s_std, 1322 .vidioc_enum_input = vidioc_enum_input, 1323 .vidioc_g_input = vidioc_g_input, 1324 .vidioc_s_input = vidioc_s_input, 1325 .vidioc_queryctrl = vidioc_queryctrl, 1326 .vidioc_g_audio = vidioc_g_audio, 1327 .vidioc_s_audio = vidioc_s_audio, 1328 .vidioc_g_ctrl = vidioc_g_ctrl, 1329 .vidioc_s_ctrl = vidioc_s_ctrl, 1330 .vidioc_streamon = vidioc_streamon, 1331 .vidioc_streamoff = vidioc_streamoff, 1332#ifdef CONFIG_VIDEO_V4L1_COMPAT 1333/* .vidiocgmbuf = vidiocgmbuf, */ 1334#endif 1335 .vidioc_g_tuner = vidioc_g_tuner, 1336 .vidioc_s_tuner = vidioc_s_tuner, 1337 .vidioc_g_frequency = vidioc_g_frequency, 1338 .vidioc_s_frequency = vidioc_s_frequency, 1339#ifdef CONFIG_VIDEO_ADV_DEBUG 1340 .vidioc_g_register = vidioc_g_register, 1341 .vidioc_s_register = vidioc_s_register, 1342#endif 1343}; 1344 1345static struct video_device usbvision_video_template = { 1346 .fops = &usbvision_fops, 1347 .ioctl_ops = &usbvision_ioctl_ops, 1348 .name = "usbvision-video", 1349 .release = video_device_release, 1350 .minor = -1, 1351 .tvnorms = USBVISION_NORMS, 1352 .current_norm = V4L2_STD_PAL 1353}; 1354 1355 1356// Radio template 1357static const struct v4l2_file_operations usbvision_radio_fops = { 1358 .owner = THIS_MODULE, 1359 .open = usbvision_radio_open, 1360 .release = usbvision_radio_close, 1361 .ioctl = video_ioctl2, 1362}; 1363 1364static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { 1365 .vidioc_querycap = vidioc_querycap, 1366 .vidioc_enum_input = vidioc_enum_input, 1367 .vidioc_g_input = vidioc_g_input, 1368 .vidioc_s_input = vidioc_s_input, 1369 .vidioc_queryctrl = vidioc_queryctrl, 1370 .vidioc_g_audio = vidioc_g_audio, 1371 .vidioc_s_audio = vidioc_s_audio, 1372 .vidioc_g_ctrl = vidioc_g_ctrl, 1373 .vidioc_s_ctrl = vidioc_s_ctrl, 1374 .vidioc_g_tuner = vidioc_g_tuner, 1375 .vidioc_s_tuner = vidioc_s_tuner, 1376 .vidioc_g_frequency = vidioc_g_frequency, 1377 .vidioc_s_frequency = vidioc_s_frequency, 1378}; 1379 1380static struct video_device usbvision_radio_template = { 1381 .fops = &usbvision_radio_fops, 1382 .name = "usbvision-radio", 1383 .release = video_device_release, 1384 .minor = -1, 1385 .ioctl_ops = &usbvision_radio_ioctl_ops, 1386 1387 .tvnorms = USBVISION_NORMS, 1388 .current_norm = V4L2_STD_PAL 1389}; 1390 1391// vbi template 1392static const struct v4l2_file_operations usbvision_vbi_fops = { 1393 .owner = THIS_MODULE, 1394 .open = usbvision_vbi_open, 1395 .release = usbvision_vbi_close, 1396 .ioctl = usbvision_vbi_ioctl, 1397}; 1398 1399static struct video_device usbvision_vbi_template= 1400{ 1401 .fops = &usbvision_vbi_fops, 1402 .release = video_device_release, 1403 .name = "usbvision-vbi", 1404 .minor = -1, 1405}; 1406 1407 1408static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1409 struct video_device *vdev_template, 1410 char *name) 1411{ 1412 struct usb_device *usb_dev = usbvision->dev; 1413 struct video_device *vdev; 1414 1415 if (usb_dev == NULL) { 1416 dev_err(&usbvision->dev->dev, 1417 "%s: usbvision->dev is not set\n", __func__); 1418 return NULL; 1419 } 1420 1421 vdev = video_device_alloc(); 1422 if (NULL == vdev) { 1423 return NULL; 1424 } 1425 *vdev = *vdev_template; 1426// vdev->minor = -1; 1427 vdev->v4l2_dev = &usbvision->v4l2_dev; 1428 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1429 video_set_drvdata(vdev, usbvision); 1430 return vdev; 1431} 1432 1433// unregister video4linux devices 1434static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1435{ 1436 // vbi Device: 1437 if (usbvision->vbi) { 1438 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", 1439 usbvision->vbi->num); 1440 if (usbvision->vbi->minor != -1) { 1441 video_unregister_device(usbvision->vbi); 1442 } else { 1443 video_device_release(usbvision->vbi); 1444 } 1445 usbvision->vbi = NULL; 1446 } 1447 1448 // Radio Device: 1449 if (usbvision->rdev) { 1450 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", 1451 usbvision->rdev->num); 1452 if (usbvision->rdev->minor != -1) { 1453 video_unregister_device(usbvision->rdev); 1454 } else { 1455 video_device_release(usbvision->rdev); 1456 } 1457 usbvision->rdev = NULL; 1458 } 1459 1460 // Video Device: 1461 if (usbvision->vdev) { 1462 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", 1463 usbvision->vdev->num); 1464 if (usbvision->vdev->minor != -1) { 1465 video_unregister_device(usbvision->vdev); 1466 } else { 1467 video_device_release(usbvision->vdev); 1468 } 1469 usbvision->vdev = NULL; 1470 } 1471} 1472 1473// register video4linux devices 1474static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1475{ 1476 // Video Device: 1477 usbvision->vdev = usbvision_vdev_init(usbvision, 1478 &usbvision_video_template, 1479 "USBVision Video"); 1480 if (usbvision->vdev == NULL) { 1481 goto err_exit; 1482 } 1483 if (video_register_device(usbvision->vdev, 1484 VFL_TYPE_GRABBER, 1485 video_nr)<0) { 1486 goto err_exit; 1487 } 1488 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", 1489 usbvision->nr, usbvision->vdev->num); 1490 1491 // Radio Device: 1492 if (usbvision_device_data[usbvision->DevModel].Radio) { 1493 // usbvision has radio 1494 usbvision->rdev = usbvision_vdev_init(usbvision, 1495 &usbvision_radio_template, 1496 "USBVision Radio"); 1497 if (usbvision->rdev == NULL) { 1498 goto err_exit; 1499 } 1500 if (video_register_device(usbvision->rdev, 1501 VFL_TYPE_RADIO, 1502 radio_nr)<0) { 1503 goto err_exit; 1504 } 1505 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", 1506 usbvision->nr, usbvision->rdev->num); 1507 } 1508 // vbi Device: 1509 if (usbvision_device_data[usbvision->DevModel].vbi) { 1510 usbvision->vbi = usbvision_vdev_init(usbvision, 1511 &usbvision_vbi_template, 1512 "USBVision VBI"); 1513 if (usbvision->vdev == NULL) { 1514 goto err_exit; 1515 } 1516 if (video_register_device(usbvision->vbi, 1517 VFL_TYPE_VBI, 1518 vbi_nr)<0) { 1519 goto err_exit; 1520 } 1521 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", 1522 usbvision->nr, usbvision->vbi->num); 1523 } 1524 // all done 1525 return 0; 1526 1527 err_exit: 1528 dev_err(&usbvision->dev->dev, 1529 "USBVision[%d]: video_register_device() failed\n", 1530 usbvision->nr); 1531 usbvision_unregister_video(usbvision); 1532 return -1; 1533} 1534 1535/* 1536 * usbvision_alloc() 1537 * 1538 * This code allocates the struct usb_usbvision. 1539 * It is filled with default values. 1540 * 1541 * Returns NULL on error, a pointer to usb_usbvision else. 1542 * 1543 */ 1544static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1545{ 1546 struct usb_usbvision *usbvision; 1547 1548 usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL); 1549 if (usbvision == NULL) 1550 return NULL; 1551 1552 usbvision->dev = dev; 1553 if (v4l2_device_register(&dev->dev, &usbvision->v4l2_dev)) 1554 goto err_free; 1555 1556 mutex_init(&usbvision->lock); /* available */ 1557 1558 // prepare control urb for control messages during interrupts 1559 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1560 if (usbvision->ctrlUrb == NULL) 1561 goto err_unreg; 1562 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1563 1564 usbvision_init_powerOffTimer(usbvision); 1565 1566 return usbvision; 1567 1568err_unreg: 1569 v4l2_device_unregister(&usbvision->v4l2_dev); 1570err_free: 1571 kfree(usbvision); 1572 return NULL; 1573} 1574 1575/* 1576 * usbvision_release() 1577 * 1578 * This code does final release of struct usb_usbvision. This happens 1579 * after the device is disconnected -and- all clients closed their files. 1580 * 1581 */ 1582static void usbvision_release(struct usb_usbvision *usbvision) 1583{ 1584 PDEBUG(DBG_PROBE, ""); 1585 1586 mutex_lock(&usbvision->lock); 1587 1588 usbvision_reset_powerOffTimer(usbvision); 1589 1590 usbvision->initialized = 0; 1591 1592 mutex_unlock(&usbvision->lock); 1593 1594 usbvision_remove_sysfs(usbvision->vdev); 1595 usbvision_unregister_video(usbvision); 1596 1597 if (usbvision->ctrlUrb) { 1598 usb_free_urb(usbvision->ctrlUrb); 1599 } 1600 1601 v4l2_device_unregister(&usbvision->v4l2_dev); 1602 kfree(usbvision); 1603 1604 PDEBUG(DBG_PROBE, "success"); 1605} 1606 1607 1608/*********************** usb interface **********************************/ 1609 1610static void usbvision_configure_video(struct usb_usbvision *usbvision) 1611{ 1612 int model; 1613 1614 if (usbvision == NULL) 1615 return; 1616 1617 model = usbvision->DevModel; 1618 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1619 1620 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { 1621 usbvision->Vin_Reg2_Preset = 1622 usbvision_device_data[usbvision->DevModel].Vin_Reg2; 1623 } else { 1624 usbvision->Vin_Reg2_Preset = 0; 1625 } 1626 1627 usbvision->tvnormId = usbvision_device_data[model].VideoNorm; 1628 1629 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1630 usbvision->ctl_input = 0; 1631 1632 /* This should be here to make i2c clients to be able to register */ 1633 /* first switch off audio */ 1634 usbvision_audio_off(usbvision); 1635 if (!PowerOnAtOpen) { 1636 /* and then power up the noisy tuner */ 1637 usbvision_power_on(usbvision); 1638 usbvision_i2c_register(usbvision); 1639 } 1640} 1641 1642/* 1643 * usbvision_probe() 1644 * 1645 * This procedure queries device descriptor and accepts the interface 1646 * if it looks like USBVISION video device 1647 * 1648 */ 1649static int __devinit usbvision_probe(struct usb_interface *intf, 1650 const struct usb_device_id *devid) 1651{ 1652 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1653 struct usb_interface *uif; 1654 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1655 const struct usb_host_interface *interface; 1656 struct usb_usbvision *usbvision = NULL; 1657 const struct usb_endpoint_descriptor *endpoint; 1658 int model,i; 1659 1660 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1661 dev->descriptor.idVendor, 1662 dev->descriptor.idProduct, ifnum); 1663 1664 model = devid->driver_info; 1665 if ( (model<0) || (model>=usbvision_device_data_size) ) { 1666 PDEBUG(DBG_PROBE, "model out of bounds %d",model); 1667 return -ENODEV; 1668 } 1669 printk(KERN_INFO "%s: %s found\n", __func__, 1670 usbvision_device_data[model].ModelString); 1671 1672 if (usbvision_device_data[model].Interface >= 0) { 1673 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1674 } else { 1675 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1676 } 1677 endpoint = &interface->endpoint[1].desc; 1678 if (!usb_endpoint_xfer_isoc(endpoint)) { 1679 dev_err(&intf->dev, "%s: interface %d. has non-ISO endpoint!\n", 1680 __func__, ifnum); 1681 dev_err(&intf->dev, "%s: Endpoint attributes %d", 1682 __func__, endpoint->bmAttributes); 1683 return -ENODEV; 1684 } 1685 if (usb_endpoint_dir_out(endpoint)) { 1686 dev_err(&intf->dev, "%s: interface %d. has ISO OUT endpoint!\n", 1687 __func__, ifnum); 1688 return -ENODEV; 1689 } 1690 1691 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1692 dev_err(&intf->dev, "%s: couldn't allocate USBVision struct\n", __func__); 1693 return -ENOMEM; 1694 } 1695 1696 if (dev->descriptor.bNumConfigurations > 1) { 1697 usbvision->bridgeType = BRIDGE_NT1004; 1698 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) { 1699 usbvision->bridgeType = BRIDGE_NT1005; 1700 } else { 1701 usbvision->bridgeType = BRIDGE_NT1003; 1702 } 1703 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1704 1705 mutex_lock(&usbvision->lock); 1706 1707 /* compute alternate max packet sizes */ 1708 uif = dev->actconfig->interface[0]; 1709 1710 usbvision->num_alt=uif->num_altsetting; 1711 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1712 usbvision->alt_max_pkt_size = kmalloc(32* 1713 usbvision->num_alt,GFP_KERNEL); 1714 if (usbvision->alt_max_pkt_size == NULL) { 1715 dev_err(&intf->dev, "usbvision: out of memory!\n"); 1716 mutex_unlock(&usbvision->lock); 1717 return -ENOMEM; 1718 } 1719 1720 for (i = 0; i < usbvision->num_alt ; i++) { 1721 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1722 wMaxPacketSize); 1723 usbvision->alt_max_pkt_size[i] = 1724 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1725 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1726 usbvision->alt_max_pkt_size[i]); 1727 } 1728 1729 1730 usbvision->nr = usbvision_nr++; 1731 1732 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1733 if (usbvision->have_tuner) { 1734 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1735 } 1736 1737 usbvision->DevModel = model; 1738 usbvision->remove_pending = 0; 1739 usbvision->iface = ifnum; 1740 usbvision->ifaceAlt = 0; 1741 usbvision->video_endp = endpoint->bEndpointAddress; 1742 usbvision->isocPacketSize = 0; 1743 usbvision->usb_bandwidth = 0; 1744 usbvision->user = 0; 1745 usbvision->streaming = Stream_Off; 1746 usbvision_register_video(usbvision); 1747 usbvision_configure_video(usbvision); 1748 mutex_unlock(&usbvision->lock); 1749 1750 1751 usb_set_intfdata (intf, usbvision); 1752 usbvision_create_sysfs(usbvision->vdev); 1753 1754 PDEBUG(DBG_PROBE, "success"); 1755 return 0; 1756} 1757 1758 1759/* 1760 * usbvision_disconnect() 1761 * 1762 * This procedure stops all driver activity, deallocates interface-private 1763 * structure (pointed by 'ptr') and after that driver should be removable 1764 * with no ill consequences. 1765 * 1766 */ 1767static void __devexit usbvision_disconnect(struct usb_interface *intf) 1768{ 1769 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1770 1771 PDEBUG(DBG_PROBE, ""); 1772 1773 if (usbvision == NULL) { 1774 dev_err(&usbvision->dev->dev, 1775 "%s: usb_get_intfdata() failed\n", __func__); 1776 return; 1777 } 1778 usb_set_intfdata (intf, NULL); 1779 1780 mutex_lock(&usbvision->lock); 1781 1782 // At this time we ask to cancel outstanding URBs 1783 usbvision_stop_isoc(usbvision); 1784 1785 if (usbvision->power) { 1786 usbvision_i2c_unregister(usbvision); 1787 usbvision_power_off(usbvision); 1788 } 1789 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1790 1791 usb_put_dev(usbvision->dev); 1792 usbvision->dev = NULL; // USB device is no more 1793 1794 mutex_unlock(&usbvision->lock); 1795 1796 if (usbvision->user) { 1797 printk(KERN_INFO "%s: In use, disconnect pending\n", 1798 __func__); 1799 wake_up_interruptible(&usbvision->wait_frame); 1800 wake_up_interruptible(&usbvision->wait_stream); 1801 } else { 1802 usbvision_release(usbvision); 1803 } 1804 1805 PDEBUG(DBG_PROBE, "success"); 1806} 1807 1808static struct usb_driver usbvision_driver = { 1809 .name = "usbvision", 1810 .id_table = usbvision_table, 1811 .probe = usbvision_probe, 1812 .disconnect = usbvision_disconnect 1813}; 1814 1815/* 1816 * usbvision_init() 1817 * 1818 * This code is run to initialize the driver. 1819 * 1820 */ 1821static int __init usbvision_init(void) 1822{ 1823 int errCode; 1824 1825 PDEBUG(DBG_PROBE, ""); 1826 1827 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 1828 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 1829 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 1830 1831 /* disable planar mode support unless compression enabled */ 1832 if (isocMode != ISOC_MODE_COMPRESS ) { 1833 // FIXME : not the right way to set supported flag 1834 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 1835 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 1836 } 1837 1838 errCode = usb_register(&usbvision_driver); 1839 1840 if (errCode == 0) { 1841 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 1842 PDEBUG(DBG_PROBE, "success"); 1843 } 1844 return errCode; 1845} 1846 1847static void __exit usbvision_exit(void) 1848{ 1849 PDEBUG(DBG_PROBE, ""); 1850 1851 usb_deregister(&usbvision_driver); 1852 PDEBUG(DBG_PROBE, "success"); 1853} 1854 1855module_init(usbvision_init); 1856module_exit(usbvision_exit); 1857 1858/* 1859 * Overrides for Emacs so that we follow Linus's tabbing style. 1860 * --------------------------------------------------------------------------- 1861 * Local variables: 1862 * c-basic-offset: 8 1863 * End: 1864 */ 1865