usbvision-video.c revision 134179823b3ca9c8b98e0631906459dbb022ff9b
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_i2c_clients(usbvision, VIDIOC_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_i2c_clients(usbvision, VIDIOC_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_i2c_clients(usbvision, VIDIOC_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_i2c_clients(usbvision, VIDIOC_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 err("%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 inode *inode, 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 inode *inode, 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_register *reg) 481{ 482 struct usb_usbvision *usbvision = video_drvdata(file); 483 int errCode; 484 485 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 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 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d", 491 __func__, errCode); 492 return errCode; 493 } 494 reg->val = errCode; 495 return 0; 496} 497 498static int vidioc_s_register (struct file *file, void *priv, 499 struct v4l2_register *reg) 500{ 501 struct usb_usbvision *usbvision = video_drvdata(file); 502 int errCode; 503 504 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip)) 505 return -EINVAL; 506 /* NT100x has a 8-bit register space */ 507 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val); 508 if (errCode < 0) { 509 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d", 510 __func__, errCode); 511 return errCode; 512 } 513 return 0; 514} 515#endif 516 517static int vidioc_querycap (struct file *file, void *priv, 518 struct v4l2_capability *vc) 519{ 520 struct usb_usbvision *usbvision = video_drvdata(file); 521 522 strlcpy(vc->driver, "USBVision", sizeof(vc->driver)); 523 strlcpy(vc->card, 524 usbvision_device_data[usbvision->DevModel].ModelString, 525 sizeof(vc->card)); 526 strlcpy(vc->bus_info, dev_name(&usbvision->dev->dev), 527 sizeof(vc->bus_info)); 528 vc->version = USBVISION_DRIVER_VERSION; 529 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE | 530 V4L2_CAP_AUDIO | 531 V4L2_CAP_READWRITE | 532 V4L2_CAP_STREAMING | 533 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0); 534 return 0; 535} 536 537static int vidioc_enum_input (struct file *file, void *priv, 538 struct v4l2_input *vi) 539{ 540 struct usb_usbvision *usbvision = video_drvdata(file); 541 int chan; 542 543 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) ) 544 return -EINVAL; 545 if (usbvision->have_tuner) { 546 chan = vi->index; 547 } else { 548 chan = vi->index + 1; /*skip Television string*/ 549 } 550 /* Determine the requested input characteristics 551 specific for each usbvision card model */ 552 switch(chan) { 553 case 0: 554 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 555 strcpy(vi->name, "White Video Input"); 556 } else { 557 strcpy(vi->name, "Television"); 558 vi->type = V4L2_INPUT_TYPE_TUNER; 559 vi->audioset = 1; 560 vi->tuner = chan; 561 vi->std = USBVISION_NORMS; 562 } 563 break; 564 case 1: 565 vi->type = V4L2_INPUT_TYPE_CAMERA; 566 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 567 strcpy(vi->name, "Green Video Input"); 568 } else { 569 strcpy(vi->name, "Composite Video Input"); 570 } 571 vi->std = V4L2_STD_PAL; 572 break; 573 case 2: 574 vi->type = V4L2_INPUT_TYPE_CAMERA; 575 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) { 576 strcpy(vi->name, "Yellow Video Input"); 577 } else { 578 strcpy(vi->name, "S-Video Input"); 579 } 580 vi->std = V4L2_STD_PAL; 581 break; 582 case 3: 583 vi->type = V4L2_INPUT_TYPE_CAMERA; 584 strcpy(vi->name, "Red Video Input"); 585 vi->std = V4L2_STD_PAL; 586 break; 587 } 588 return 0; 589} 590 591static int vidioc_g_input (struct file *file, void *priv, unsigned int *input) 592{ 593 struct usb_usbvision *usbvision = video_drvdata(file); 594 595 *input = usbvision->ctl_input; 596 return 0; 597} 598 599static int vidioc_s_input (struct file *file, void *priv, unsigned int input) 600{ 601 struct usb_usbvision *usbvision = video_drvdata(file); 602 603 if ((input >= usbvision->video_inputs) || (input < 0) ) 604 return -EINVAL; 605 606 mutex_lock(&usbvision->lock); 607 usbvision_muxsel(usbvision, input); 608 usbvision_set_input(usbvision); 609 usbvision_set_output(usbvision, 610 usbvision->curwidth, 611 usbvision->curheight); 612 mutex_unlock(&usbvision->lock); 613 return 0; 614} 615 616static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id) 617{ 618 struct usb_usbvision *usbvision = video_drvdata(file); 619 620 usbvision->tvnormId=*id; 621 622 mutex_lock(&usbvision->lock); 623 call_i2c_clients(usbvision, VIDIOC_S_STD, 624 &usbvision->tvnormId); 625 mutex_unlock(&usbvision->lock); 626 /* propagate the change to the decoder */ 627 usbvision_muxsel(usbvision, usbvision->ctl_input); 628 629 return 0; 630} 631 632static int vidioc_g_tuner (struct file *file, void *priv, 633 struct v4l2_tuner *vt) 634{ 635 struct usb_usbvision *usbvision = video_drvdata(file); 636 637 if (!usbvision->have_tuner || vt->index) // Only tuner 0 638 return -EINVAL; 639 if(usbvision->radio) { 640 strcpy(vt->name, "Radio"); 641 vt->type = V4L2_TUNER_RADIO; 642 } else { 643 strcpy(vt->name, "Television"); 644 } 645 /* Let clients fill in the remainder of this struct */ 646 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt); 647 648 return 0; 649} 650 651static int vidioc_s_tuner (struct file *file, void *priv, 652 struct v4l2_tuner *vt) 653{ 654 struct usb_usbvision *usbvision = video_drvdata(file); 655 656 // Only no or one tuner for now 657 if (!usbvision->have_tuner || vt->index) 658 return -EINVAL; 659 /* let clients handle this */ 660 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt); 661 662 return 0; 663} 664 665static int vidioc_g_frequency (struct file *file, void *priv, 666 struct v4l2_frequency *freq) 667{ 668 struct usb_usbvision *usbvision = video_drvdata(file); 669 670 freq->tuner = 0; // Only one tuner 671 if(usbvision->radio) { 672 freq->type = V4L2_TUNER_RADIO; 673 } else { 674 freq->type = V4L2_TUNER_ANALOG_TV; 675 } 676 freq->frequency = usbvision->freq; 677 678 return 0; 679} 680 681static int vidioc_s_frequency (struct file *file, void *priv, 682 struct v4l2_frequency *freq) 683{ 684 struct usb_usbvision *usbvision = video_drvdata(file); 685 686 // Only no or one tuner for now 687 if (!usbvision->have_tuner || freq->tuner) 688 return -EINVAL; 689 690 usbvision->freq = freq->frequency; 691 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq); 692 693 return 0; 694} 695 696static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a) 697{ 698 struct usb_usbvision *usbvision = video_drvdata(file); 699 700 memset(a,0,sizeof(*a)); 701 if(usbvision->radio) { 702 strcpy(a->name,"Radio"); 703 } else { 704 strcpy(a->name, "TV"); 705 } 706 707 return 0; 708} 709 710static int vidioc_s_audio (struct file *file, void *fh, 711 struct v4l2_audio *a) 712{ 713 if(a->index) { 714 return -EINVAL; 715 } 716 717 return 0; 718} 719 720static int vidioc_queryctrl (struct file *file, void *priv, 721 struct v4l2_queryctrl *ctrl) 722{ 723 struct usb_usbvision *usbvision = video_drvdata(file); 724 int id=ctrl->id; 725 726 memset(ctrl,0,sizeof(*ctrl)); 727 ctrl->id=id; 728 729 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl); 730 731 if (!ctrl->type) 732 return -EINVAL; 733 734 return 0; 735} 736 737static int vidioc_g_ctrl (struct file *file, void *priv, 738 struct v4l2_control *ctrl) 739{ 740 struct usb_usbvision *usbvision = video_drvdata(file); 741 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl); 742 743 return 0; 744} 745 746static int vidioc_s_ctrl (struct file *file, void *priv, 747 struct v4l2_control *ctrl) 748{ 749 struct usb_usbvision *usbvision = video_drvdata(file); 750 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl); 751 752 return 0; 753} 754 755static int vidioc_reqbufs (struct file *file, 756 void *priv, struct v4l2_requestbuffers *vr) 757{ 758 struct usb_usbvision *usbvision = video_drvdata(file); 759 int ret; 760 761 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES); 762 763 /* Check input validity: 764 the user must do a VIDEO CAPTURE and MMAP method. */ 765 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) || 766 (vr->memory != V4L2_MEMORY_MMAP)) 767 return -EINVAL; 768 769 if(usbvision->streaming == Stream_On) { 770 if ((ret = usbvision_stream_interrupt(usbvision))) 771 return ret; 772 } 773 774 usbvision_frames_free(usbvision); 775 usbvision_empty_framequeues(usbvision); 776 vr->count = usbvision_frames_alloc(usbvision,vr->count); 777 778 usbvision->curFrame = NULL; 779 780 return 0; 781} 782 783static int vidioc_querybuf (struct file *file, 784 void *priv, struct v4l2_buffer *vb) 785{ 786 struct usb_usbvision *usbvision = video_drvdata(file); 787 struct usbvision_frame *frame; 788 789 /* FIXME : must control 790 that buffers are mapped (VIDIOC_REQBUFS has been called) */ 791 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 792 return -EINVAL; 793 } 794 if(vb->index>=usbvision->num_frames) { 795 return -EINVAL; 796 } 797 /* Updating the corresponding frame state */ 798 vb->flags = 0; 799 frame = &usbvision->frame[vb->index]; 800 if(frame->grabstate >= FrameState_Ready) 801 vb->flags |= V4L2_BUF_FLAG_QUEUED; 802 if(frame->grabstate >= FrameState_Done) 803 vb->flags |= V4L2_BUF_FLAG_DONE; 804 if(frame->grabstate == FrameState_Unused) 805 vb->flags |= V4L2_BUF_FLAG_MAPPED; 806 vb->memory = V4L2_MEMORY_MMAP; 807 808 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size); 809 810 vb->memory = V4L2_MEMORY_MMAP; 811 vb->field = V4L2_FIELD_NONE; 812 vb->length = usbvision->curwidth* 813 usbvision->curheight* 814 usbvision->palette.bytes_per_pixel; 815 vb->timestamp = usbvision->frame[vb->index].timestamp; 816 vb->sequence = usbvision->frame[vb->index].sequence; 817 return 0; 818} 819 820static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 821{ 822 struct usb_usbvision *usbvision = video_drvdata(file); 823 struct usbvision_frame *frame; 824 unsigned long lock_flags; 825 826 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */ 827 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) { 828 return -EINVAL; 829 } 830 if(vb->index>=usbvision->num_frames) { 831 return -EINVAL; 832 } 833 834 frame = &usbvision->frame[vb->index]; 835 836 if (frame->grabstate != FrameState_Unused) { 837 return -EAGAIN; 838 } 839 840 /* Mark it as ready and enqueue frame */ 841 frame->grabstate = FrameState_Ready; 842 frame->scanstate = ScanState_Scanning; 843 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */ 844 845 vb->flags &= ~V4L2_BUF_FLAG_DONE; 846 847 /* set v4l2_format index */ 848 frame->v4l2_format = usbvision->palette; 849 850 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 851 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue); 852 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 853 854 return 0; 855} 856 857static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb) 858{ 859 struct usb_usbvision *usbvision = video_drvdata(file); 860 int ret; 861 struct usbvision_frame *f; 862 unsigned long lock_flags; 863 864 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 865 return -EINVAL; 866 867 if (list_empty(&(usbvision->outqueue))) { 868 if (usbvision->streaming == Stream_Idle) 869 return -EINVAL; 870 ret = wait_event_interruptible 871 (usbvision->wait_frame, 872 !list_empty(&(usbvision->outqueue))); 873 if (ret) 874 return ret; 875 } 876 877 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 878 f = list_entry(usbvision->outqueue.next, 879 struct usbvision_frame, frame); 880 list_del(usbvision->outqueue.next); 881 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 882 883 f->grabstate = FrameState_Unused; 884 885 vb->memory = V4L2_MEMORY_MMAP; 886 vb->flags = V4L2_BUF_FLAG_MAPPED | 887 V4L2_BUF_FLAG_QUEUED | 888 V4L2_BUF_FLAG_DONE; 889 vb->index = f->index; 890 vb->sequence = f->sequence; 891 vb->timestamp = f->timestamp; 892 vb->field = V4L2_FIELD_NONE; 893 vb->bytesused = f->scanlength; 894 895 return 0; 896} 897 898static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) 899{ 900 struct usb_usbvision *usbvision = video_drvdata(file); 901 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 902 903 usbvision->streaming = Stream_On; 904 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b); 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 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE; 914 915 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 916 return -EINVAL; 917 918 if(usbvision->streaming == Stream_On) { 919 usbvision_stream_interrupt(usbvision); 920 /* Stop all video streamings */ 921 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b); 922 } 923 usbvision_empty_framequeues(usbvision); 924 925 return 0; 926} 927 928static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv, 929 struct v4l2_fmtdesc *vfd) 930{ 931 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) { 932 return -EINVAL; 933 } 934 vfd->flags = 0; 935 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 936 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc); 937 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format; 938 memset(vfd->reserved, 0, sizeof(vfd->reserved)); 939 return 0; 940} 941 942static int vidioc_g_fmt_vid_cap (struct file *file, void *priv, 943 struct v4l2_format *vf) 944{ 945 struct usb_usbvision *usbvision = video_drvdata(file); 946 vf->fmt.pix.width = usbvision->curwidth; 947 vf->fmt.pix.height = usbvision->curheight; 948 vf->fmt.pix.pixelformat = usbvision->palette.format; 949 vf->fmt.pix.bytesperline = 950 usbvision->curwidth*usbvision->palette.bytes_per_pixel; 951 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight; 952 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 953 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */ 954 955 return 0; 956} 957 958static int vidioc_try_fmt_vid_cap (struct file *file, void *priv, 959 struct v4l2_format *vf) 960{ 961 struct usb_usbvision *usbvision = video_drvdata(file); 962 int formatIdx; 963 964 /* Find requested format in available ones */ 965 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) { 966 if(vf->fmt.pix.pixelformat == 967 usbvision_v4l2_format[formatIdx].format) { 968 usbvision->palette = usbvision_v4l2_format[formatIdx]; 969 break; 970 } 971 } 972 /* robustness */ 973 if(formatIdx == USBVISION_SUPPORTED_PALETTES) { 974 return -EINVAL; 975 } 976 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH); 977 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT); 978 979 vf->fmt.pix.bytesperline = vf->fmt.pix.width* 980 usbvision->palette.bytes_per_pixel; 981 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height; 982 983 return 0; 984} 985 986static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 987 struct v4l2_format *vf) 988{ 989 struct usb_usbvision *usbvision = video_drvdata(file); 990 int ret; 991 992 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) { 993 return ret; 994 } 995 996 /* stop io in case it is already in progress */ 997 if(usbvision->streaming == Stream_On) { 998 if ((ret = usbvision_stream_interrupt(usbvision))) 999 return ret; 1000 } 1001 usbvision_frames_free(usbvision); 1002 usbvision_empty_framequeues(usbvision); 1003 1004 usbvision->curFrame = NULL; 1005 1006 /* by now we are committed to the new data... */ 1007 mutex_lock(&usbvision->lock); 1008 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height); 1009 mutex_unlock(&usbvision->lock); 1010 1011 return 0; 1012} 1013 1014static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf, 1015 size_t count, loff_t *ppos) 1016{ 1017 struct usb_usbvision *usbvision = video_drvdata(file); 1018 int noblock = file->f_flags & O_NONBLOCK; 1019 unsigned long lock_flags; 1020 1021 int ret,i; 1022 struct usbvision_frame *frame; 1023 1024 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__, 1025 (unsigned long)count, noblock); 1026 1027 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL)) 1028 return -EFAULT; 1029 1030 /* This entry point is compatible with the mmap routines 1031 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF 1032 to get frames or call read on the device. */ 1033 if(!usbvision->num_frames) { 1034 /* First, allocate some frames to work with 1035 if this has not been done with VIDIOC_REQBUF */ 1036 usbvision_frames_free(usbvision); 1037 usbvision_empty_framequeues(usbvision); 1038 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES); 1039 } 1040 1041 if(usbvision->streaming != Stream_On) { 1042 /* no stream is running, make it running ! */ 1043 usbvision->streaming = Stream_On; 1044 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL); 1045 } 1046 1047 /* Then, enqueue as many frames as possible 1048 (like a user of VIDIOC_QBUF would do) */ 1049 for(i=0;i<usbvision->num_frames;i++) { 1050 frame = &usbvision->frame[i]; 1051 if(frame->grabstate == FrameState_Unused) { 1052 /* Mark it as ready and enqueue frame */ 1053 frame->grabstate = FrameState_Ready; 1054 frame->scanstate = ScanState_Scanning; 1055 /* Accumulated in usbvision_parse_data() */ 1056 frame->scanlength = 0; 1057 1058 /* set v4l2_format index */ 1059 frame->v4l2_format = usbvision->palette; 1060 1061 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1062 list_add_tail(&frame->frame, &usbvision->inqueue); 1063 spin_unlock_irqrestore(&usbvision->queue_lock, 1064 lock_flags); 1065 } 1066 } 1067 1068 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */ 1069 if (list_empty(&(usbvision->outqueue))) { 1070 if(noblock) 1071 return -EAGAIN; 1072 1073 ret = wait_event_interruptible 1074 (usbvision->wait_frame, 1075 !list_empty(&(usbvision->outqueue))); 1076 if (ret) 1077 return ret; 1078 } 1079 1080 spin_lock_irqsave(&usbvision->queue_lock, lock_flags); 1081 frame = list_entry(usbvision->outqueue.next, 1082 struct usbvision_frame, frame); 1083 list_del(usbvision->outqueue.next); 1084 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); 1085 1086 /* An error returns an empty frame */ 1087 if (frame->grabstate == FrameState_Error) { 1088 frame->bytes_read = 0; 1089 return 0; 1090 } 1091 1092 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", 1093 __func__, 1094 frame->index, frame->bytes_read, frame->scanlength); 1095 1096 /* copy bytes to user space; we allow for partials reads */ 1097 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength) 1098 count = frame->scanlength - frame->bytes_read; 1099 1100 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) { 1101 return -EFAULT; 1102 } 1103 1104 frame->bytes_read += count; 1105 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", 1106 __func__, 1107 (unsigned long)count, frame->bytes_read); 1108 1109 /* For now, forget the frame if it has not been read in one shot. */ 1110/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */ 1111 frame->bytes_read = 0; 1112 1113 /* Mark it as available to be used again. */ 1114 frame->grabstate = FrameState_Unused; 1115/* } */ 1116 1117 return count; 1118} 1119 1120static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma) 1121{ 1122 unsigned long size = vma->vm_end - vma->vm_start, 1123 start = vma->vm_start; 1124 void *pos; 1125 u32 i; 1126 struct usb_usbvision *usbvision = video_drvdata(file); 1127 1128 PDEBUG(DBG_MMAP, "mmap"); 1129 1130 mutex_lock(&usbvision->lock); 1131 1132 if (!USBVISION_IS_OPERATIONAL(usbvision)) { 1133 mutex_unlock(&usbvision->lock); 1134 return -EFAULT; 1135 } 1136 1137 if (!(vma->vm_flags & VM_WRITE) || 1138 size != PAGE_ALIGN(usbvision->max_frame_size)) { 1139 mutex_unlock(&usbvision->lock); 1140 return -EINVAL; 1141 } 1142 1143 for (i = 0; i < usbvision->num_frames; i++) { 1144 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == 1145 vma->vm_pgoff) 1146 break; 1147 } 1148 if (i == usbvision->num_frames) { 1149 PDEBUG(DBG_MMAP, 1150 "mmap: user supplied mapping address is out of range"); 1151 mutex_unlock(&usbvision->lock); 1152 return -EINVAL; 1153 } 1154 1155 /* VM_IO is eventually going to replace PageReserved altogether */ 1156 vma->vm_flags |= VM_IO; 1157 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ 1158 1159 pos = usbvision->frame[i].data; 1160 while (size > 0) { 1161 1162 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) { 1163 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed"); 1164 mutex_unlock(&usbvision->lock); 1165 return -EAGAIN; 1166 } 1167 start += PAGE_SIZE; 1168 pos += PAGE_SIZE; 1169 size -= PAGE_SIZE; 1170 } 1171 1172 mutex_unlock(&usbvision->lock); 1173 return 0; 1174} 1175 1176 1177/* 1178 * Here comes the stuff for radio on usbvision based devices 1179 * 1180 */ 1181static int usbvision_radio_open(struct inode *inode, struct file *file) 1182{ 1183 struct usb_usbvision *usbvision = video_drvdata(file); 1184 int errCode = 0; 1185 1186 PDEBUG(DBG_IO, "%s:", __func__); 1187 1188 mutex_lock(&usbvision->lock); 1189 1190 if (usbvision->user) { 1191 err("%s: Someone tried to open an already opened USBVision Radio!", __func__); 1192 errCode = -EBUSY; 1193 } 1194 else { 1195 if(PowerOnAtOpen) { 1196 usbvision_reset_powerOffTimer(usbvision); 1197 if (usbvision->power == 0) { 1198 usbvision_power_on(usbvision); 1199 usbvision_i2c_register(usbvision); 1200 } 1201 } 1202 1203 /* Alternate interface 1 is is the biggest frame size */ 1204 errCode = usbvision_set_alternate(usbvision); 1205 if (errCode < 0) { 1206 usbvision->last_error = errCode; 1207 errCode = -EBUSY; 1208 goto out; 1209 } 1210 1211 // If so far no errors then we shall start the radio 1212 usbvision->radio = 1; 1213 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type); 1214 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO); 1215 usbvision->user++; 1216 } 1217 1218 if (errCode) { 1219 if (PowerOnAtOpen) { 1220 usbvision_i2c_unregister(usbvision); 1221 usbvision_power_off(usbvision); 1222 usbvision->initialized = 0; 1223 } 1224 } 1225out: 1226 mutex_unlock(&usbvision->lock); 1227 return errCode; 1228} 1229 1230 1231static int usbvision_radio_close(struct inode *inode, struct file *file) 1232{ 1233 struct usb_usbvision *usbvision = video_drvdata(file); 1234 int errCode = 0; 1235 1236 PDEBUG(DBG_IO, ""); 1237 1238 mutex_lock(&usbvision->lock); 1239 1240 /* Set packet size to 0 */ 1241 usbvision->ifaceAlt=0; 1242 errCode = usb_set_interface(usbvision->dev, usbvision->iface, 1243 usbvision->ifaceAlt); 1244 1245 usbvision_audio_off(usbvision); 1246 usbvision->radio=0; 1247 usbvision->user--; 1248 1249 if (PowerOnAtOpen) { 1250 usbvision_set_powerOffTimer(usbvision); 1251 usbvision->initialized = 0; 1252 } 1253 1254 mutex_unlock(&usbvision->lock); 1255 1256 if (usbvision->remove_pending) { 1257 printk(KERN_INFO "%s: Final disconnect\n", __func__); 1258 usbvision_release(usbvision); 1259 } 1260 1261 PDEBUG(DBG_IO, "success"); 1262 return errCode; 1263} 1264 1265/* 1266 * Here comes the stuff for vbi on usbvision based devices 1267 * 1268 */ 1269static int usbvision_vbi_open(struct inode *inode, struct file *file) 1270{ 1271 /* TODO */ 1272 return -ENODEV; 1273} 1274 1275static int usbvision_vbi_close(struct inode *inode, struct file *file) 1276{ 1277 /* TODO */ 1278 return -ENODEV; 1279} 1280 1281static int usbvision_do_vbi_ioctl(struct file *file, 1282 unsigned int cmd, void *arg) 1283{ 1284 /* TODO */ 1285 return -ENOIOCTLCMD; 1286} 1287 1288static int usbvision_vbi_ioctl(struct inode *inode, struct file *file, 1289 unsigned int cmd, unsigned long arg) 1290{ 1291 return video_usercopy(file, cmd, arg, usbvision_do_vbi_ioctl); 1292} 1293 1294 1295// 1296// Video registration stuff 1297// 1298 1299// Video template 1300static const struct file_operations usbvision_fops = { 1301 .owner = THIS_MODULE, 1302 .open = usbvision_v4l2_open, 1303 .release = usbvision_v4l2_close, 1304 .read = usbvision_v4l2_read, 1305 .mmap = usbvision_v4l2_mmap, 1306 .ioctl = video_ioctl2, 1307 .llseek = no_llseek, 1308/* .poll = video_poll, */ 1309 .compat_ioctl = v4l_compat_ioctl32, 1310}; 1311 1312static const struct v4l2_ioctl_ops usbvision_ioctl_ops = { 1313 .vidioc_querycap = vidioc_querycap, 1314 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1315 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1316 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1317 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1318 .vidioc_reqbufs = vidioc_reqbufs, 1319 .vidioc_querybuf = vidioc_querybuf, 1320 .vidioc_qbuf = vidioc_qbuf, 1321 .vidioc_dqbuf = vidioc_dqbuf, 1322 .vidioc_s_std = vidioc_s_std, 1323 .vidioc_enum_input = vidioc_enum_input, 1324 .vidioc_g_input = vidioc_g_input, 1325 .vidioc_s_input = vidioc_s_input, 1326 .vidioc_queryctrl = vidioc_queryctrl, 1327 .vidioc_g_audio = vidioc_g_audio, 1328 .vidioc_s_audio = vidioc_s_audio, 1329 .vidioc_g_ctrl = vidioc_g_ctrl, 1330 .vidioc_s_ctrl = vidioc_s_ctrl, 1331 .vidioc_streamon = vidioc_streamon, 1332 .vidioc_streamoff = vidioc_streamoff, 1333#ifdef CONFIG_VIDEO_V4L1_COMPAT 1334/* .vidiocgmbuf = vidiocgmbuf, */ 1335#endif 1336 .vidioc_g_tuner = vidioc_g_tuner, 1337 .vidioc_s_tuner = vidioc_s_tuner, 1338 .vidioc_g_frequency = vidioc_g_frequency, 1339 .vidioc_s_frequency = vidioc_s_frequency, 1340#ifdef CONFIG_VIDEO_ADV_DEBUG 1341 .vidioc_g_register = vidioc_g_register, 1342 .vidioc_s_register = vidioc_s_register, 1343#endif 1344}; 1345 1346static struct video_device usbvision_video_template = { 1347 .fops = &usbvision_fops, 1348 .ioctl_ops = &usbvision_ioctl_ops, 1349 .name = "usbvision-video", 1350 .release = video_device_release, 1351 .minor = -1, 1352 .tvnorms = USBVISION_NORMS, 1353 .current_norm = V4L2_STD_PAL 1354}; 1355 1356 1357// Radio template 1358static const struct file_operations usbvision_radio_fops = { 1359 .owner = THIS_MODULE, 1360 .open = usbvision_radio_open, 1361 .release = usbvision_radio_close, 1362 .ioctl = video_ioctl2, 1363 .llseek = no_llseek, 1364 .compat_ioctl = v4l_compat_ioctl32, 1365}; 1366 1367static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = { 1368 .vidioc_querycap = vidioc_querycap, 1369 .vidioc_enum_input = vidioc_enum_input, 1370 .vidioc_g_input = vidioc_g_input, 1371 .vidioc_s_input = vidioc_s_input, 1372 .vidioc_queryctrl = vidioc_queryctrl, 1373 .vidioc_g_audio = vidioc_g_audio, 1374 .vidioc_s_audio = vidioc_s_audio, 1375 .vidioc_g_ctrl = vidioc_g_ctrl, 1376 .vidioc_s_ctrl = vidioc_s_ctrl, 1377 .vidioc_g_tuner = vidioc_g_tuner, 1378 .vidioc_s_tuner = vidioc_s_tuner, 1379 .vidioc_g_frequency = vidioc_g_frequency, 1380 .vidioc_s_frequency = vidioc_s_frequency, 1381}; 1382 1383static struct video_device usbvision_radio_template = { 1384 .fops = &usbvision_radio_fops, 1385 .name = "usbvision-radio", 1386 .release = video_device_release, 1387 .minor = -1, 1388 .ioctl_ops = &usbvision_radio_ioctl_ops, 1389 1390 .tvnorms = USBVISION_NORMS, 1391 .current_norm = V4L2_STD_PAL 1392}; 1393 1394// vbi template 1395static const struct file_operations usbvision_vbi_fops = { 1396 .owner = THIS_MODULE, 1397 .open = usbvision_vbi_open, 1398 .release = usbvision_vbi_close, 1399 .ioctl = usbvision_vbi_ioctl, 1400 .llseek = no_llseek, 1401 .compat_ioctl = v4l_compat_ioctl32, 1402}; 1403 1404static struct video_device usbvision_vbi_template= 1405{ 1406 .fops = &usbvision_vbi_fops, 1407 .release = video_device_release, 1408 .name = "usbvision-vbi", 1409 .minor = -1, 1410}; 1411 1412 1413static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision, 1414 struct video_device *vdev_template, 1415 char *name) 1416{ 1417 struct usb_device *usb_dev = usbvision->dev; 1418 struct video_device *vdev; 1419 1420 if (usb_dev == NULL) { 1421 err("%s: usbvision->dev is not set", __func__); 1422 return NULL; 1423 } 1424 1425 vdev = video_device_alloc(); 1426 if (NULL == vdev) { 1427 return NULL; 1428 } 1429 *vdev = *vdev_template; 1430// vdev->minor = -1; 1431 vdev->parent = &usb_dev->dev; 1432 snprintf(vdev->name, sizeof(vdev->name), "%s", name); 1433 video_set_drvdata(vdev, usbvision); 1434 return vdev; 1435} 1436 1437// unregister video4linux devices 1438static void usbvision_unregister_video(struct usb_usbvision *usbvision) 1439{ 1440 // vbi Device: 1441 if (usbvision->vbi) { 1442 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", 1443 usbvision->vbi->num); 1444 if (usbvision->vbi->minor != -1) { 1445 video_unregister_device(usbvision->vbi); 1446 } else { 1447 video_device_release(usbvision->vbi); 1448 } 1449 usbvision->vbi = NULL; 1450 } 1451 1452 // Radio Device: 1453 if (usbvision->rdev) { 1454 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", 1455 usbvision->rdev->num); 1456 if (usbvision->rdev->minor != -1) { 1457 video_unregister_device(usbvision->rdev); 1458 } else { 1459 video_device_release(usbvision->rdev); 1460 } 1461 usbvision->rdev = NULL; 1462 } 1463 1464 // Video Device: 1465 if (usbvision->vdev) { 1466 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", 1467 usbvision->vdev->num); 1468 if (usbvision->vdev->minor != -1) { 1469 video_unregister_device(usbvision->vdev); 1470 } else { 1471 video_device_release(usbvision->vdev); 1472 } 1473 usbvision->vdev = NULL; 1474 } 1475} 1476 1477// register video4linux devices 1478static int __devinit usbvision_register_video(struct usb_usbvision *usbvision) 1479{ 1480 // Video Device: 1481 usbvision->vdev = usbvision_vdev_init(usbvision, 1482 &usbvision_video_template, 1483 "USBVision Video"); 1484 if (usbvision->vdev == NULL) { 1485 goto err_exit; 1486 } 1487 if (video_register_device(usbvision->vdev, 1488 VFL_TYPE_GRABBER, 1489 video_nr)<0) { 1490 goto err_exit; 1491 } 1492 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", 1493 usbvision->nr, usbvision->vdev->num); 1494 1495 // Radio Device: 1496 if (usbvision_device_data[usbvision->DevModel].Radio) { 1497 // usbvision has radio 1498 usbvision->rdev = usbvision_vdev_init(usbvision, 1499 &usbvision_radio_template, 1500 "USBVision Radio"); 1501 if (usbvision->rdev == NULL) { 1502 goto err_exit; 1503 } 1504 if (video_register_device(usbvision->rdev, 1505 VFL_TYPE_RADIO, 1506 radio_nr)<0) { 1507 goto err_exit; 1508 } 1509 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", 1510 usbvision->nr, usbvision->rdev->num); 1511 } 1512 // vbi Device: 1513 if (usbvision_device_data[usbvision->DevModel].vbi) { 1514 usbvision->vbi = usbvision_vdev_init(usbvision, 1515 &usbvision_vbi_template, 1516 "USBVision VBI"); 1517 if (usbvision->vdev == NULL) { 1518 goto err_exit; 1519 } 1520 if (video_register_device(usbvision->vbi, 1521 VFL_TYPE_VBI, 1522 vbi_nr)<0) { 1523 goto err_exit; 1524 } 1525 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", 1526 usbvision->nr, usbvision->vbi->num); 1527 } 1528 // all done 1529 return 0; 1530 1531 err_exit: 1532 err("USBVision[%d]: video_register_device() failed", usbvision->nr); 1533 usbvision_unregister_video(usbvision); 1534 return -1; 1535} 1536 1537/* 1538 * usbvision_alloc() 1539 * 1540 * This code allocates the struct usb_usbvision. 1541 * It is filled with default values. 1542 * 1543 * Returns NULL on error, a pointer to usb_usbvision else. 1544 * 1545 */ 1546static struct usb_usbvision *usbvision_alloc(struct usb_device *dev) 1547{ 1548 struct usb_usbvision *usbvision; 1549 1550 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == 1551 NULL) { 1552 goto err_exit; 1553 } 1554 1555 usbvision->dev = dev; 1556 1557 mutex_init(&usbvision->lock); /* available */ 1558 1559 // prepare control urb for control messages during interrupts 1560 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); 1561 if (usbvision->ctrlUrb == NULL) { 1562 goto err_exit; 1563 } 1564 init_waitqueue_head(&usbvision->ctrlUrb_wq); 1565 1566 usbvision_init_powerOffTimer(usbvision); 1567 1568 return usbvision; 1569 1570err_exit: 1571 if (usbvision && usbvision->ctrlUrb) { 1572 usb_free_urb(usbvision->ctrlUrb); 1573 } 1574 if (usbvision) { 1575 kfree(usbvision); 1576 } 1577 return NULL; 1578} 1579 1580/* 1581 * usbvision_release() 1582 * 1583 * This code does final release of struct usb_usbvision. This happens 1584 * after the device is disconnected -and- all clients closed their files. 1585 * 1586 */ 1587static void usbvision_release(struct usb_usbvision *usbvision) 1588{ 1589 PDEBUG(DBG_PROBE, ""); 1590 1591 mutex_lock(&usbvision->lock); 1592 1593 usbvision_reset_powerOffTimer(usbvision); 1594 1595 usbvision->initialized = 0; 1596 1597 mutex_unlock(&usbvision->lock); 1598 1599 usbvision_remove_sysfs(usbvision->vdev); 1600 usbvision_unregister_video(usbvision); 1601 1602 if (usbvision->ctrlUrb) { 1603 usb_free_urb(usbvision->ctrlUrb); 1604 } 1605 1606 kfree(usbvision); 1607 1608 PDEBUG(DBG_PROBE, "success"); 1609} 1610 1611 1612/*********************** usb interface **********************************/ 1613 1614static void usbvision_configure_video(struct usb_usbvision *usbvision) 1615{ 1616 int model; 1617 1618 if (usbvision == NULL) 1619 return; 1620 1621 model = usbvision->DevModel; 1622 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24; 1623 1624 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) { 1625 usbvision->Vin_Reg2_Preset = 1626 usbvision_device_data[usbvision->DevModel].Vin_Reg2; 1627 } else { 1628 usbvision->Vin_Reg2_Preset = 0; 1629 } 1630 1631 usbvision->tvnormId = usbvision_device_data[model].VideoNorm; 1632 1633 usbvision->video_inputs = usbvision_device_data[model].VideoChannels; 1634 usbvision->ctl_input = 0; 1635 1636 /* This should be here to make i2c clients to be able to register */ 1637 /* first switch off audio */ 1638 usbvision_audio_off(usbvision); 1639 if (!PowerOnAtOpen) { 1640 /* and then power up the noisy tuner */ 1641 usbvision_power_on(usbvision); 1642 usbvision_i2c_register(usbvision); 1643 } 1644} 1645 1646/* 1647 * usbvision_probe() 1648 * 1649 * This procedure queries device descriptor and accepts the interface 1650 * if it looks like USBVISION video device 1651 * 1652 */ 1653static int __devinit usbvision_probe(struct usb_interface *intf, 1654 const struct usb_device_id *devid) 1655{ 1656 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf)); 1657 struct usb_interface *uif; 1658 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber; 1659 const struct usb_host_interface *interface; 1660 struct usb_usbvision *usbvision = NULL; 1661 const struct usb_endpoint_descriptor *endpoint; 1662 int model,i; 1663 1664 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u", 1665 dev->descriptor.idVendor, 1666 dev->descriptor.idProduct, ifnum); 1667 1668 model = devid->driver_info; 1669 if ( (model<0) || (model>=usbvision_device_data_size) ) { 1670 PDEBUG(DBG_PROBE, "model out of bounds %d",model); 1671 return -ENODEV; 1672 } 1673 printk(KERN_INFO "%s: %s found\n", __func__, 1674 usbvision_device_data[model].ModelString); 1675 1676 if (usbvision_device_data[model].Interface >= 0) { 1677 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0]; 1678 } else { 1679 interface = &dev->actconfig->interface[ifnum]->altsetting[0]; 1680 } 1681 endpoint = &interface->endpoint[1].desc; 1682 if (usb_endpoint_type(endpoint) != 1683 USB_ENDPOINT_XFER_ISOC) { 1684 err("%s: interface %d. has non-ISO endpoint!", 1685 __func__, ifnum); 1686 err("%s: Endpoint attributes %d", 1687 __func__, endpoint->bmAttributes); 1688 return -ENODEV; 1689 } 1690 if (usb_endpoint_dir_out(endpoint)) { 1691 err("%s: interface %d. has ISO OUT endpoint!", 1692 __func__, ifnum); 1693 return -ENODEV; 1694 } 1695 1696 if ((usbvision = usbvision_alloc(dev)) == NULL) { 1697 err("%s: couldn't allocate USBVision struct", __func__); 1698 return -ENOMEM; 1699 } 1700 1701 if (dev->descriptor.bNumConfigurations > 1) { 1702 usbvision->bridgeType = BRIDGE_NT1004; 1703 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) { 1704 usbvision->bridgeType = BRIDGE_NT1005; 1705 } else { 1706 usbvision->bridgeType = BRIDGE_NT1003; 1707 } 1708 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType); 1709 1710 mutex_lock(&usbvision->lock); 1711 1712 /* compute alternate max packet sizes */ 1713 uif = dev->actconfig->interface[0]; 1714 1715 usbvision->num_alt=uif->num_altsetting; 1716 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt); 1717 usbvision->alt_max_pkt_size = kmalloc(32* 1718 usbvision->num_alt,GFP_KERNEL); 1719 if (usbvision->alt_max_pkt_size == NULL) { 1720 err("usbvision: out of memory!\n"); 1721 mutex_unlock(&usbvision->lock); 1722 return -ENOMEM; 1723 } 1724 1725 for (i = 0; i < usbvision->num_alt ; i++) { 1726 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc. 1727 wMaxPacketSize); 1728 usbvision->alt_max_pkt_size[i] = 1729 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); 1730 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i, 1731 usbvision->alt_max_pkt_size[i]); 1732 } 1733 1734 1735 usbvision->nr = usbvision_nr++; 1736 1737 usbvision->have_tuner = usbvision_device_data[model].Tuner; 1738 if (usbvision->have_tuner) { 1739 usbvision->tuner_type = usbvision_device_data[model].TunerType; 1740 } 1741 1742 usbvision->tuner_addr = ADDR_UNSET; 1743 1744 usbvision->DevModel = model; 1745 usbvision->remove_pending = 0; 1746 usbvision->iface = ifnum; 1747 usbvision->ifaceAlt = 0; 1748 usbvision->video_endp = endpoint->bEndpointAddress; 1749 usbvision->isocPacketSize = 0; 1750 usbvision->usb_bandwidth = 0; 1751 usbvision->user = 0; 1752 usbvision->streaming = Stream_Off; 1753 usbvision_register_video(usbvision); 1754 usbvision_configure_video(usbvision); 1755 mutex_unlock(&usbvision->lock); 1756 1757 1758 usb_set_intfdata (intf, usbvision); 1759 usbvision_create_sysfs(usbvision->vdev); 1760 1761 PDEBUG(DBG_PROBE, "success"); 1762 return 0; 1763} 1764 1765 1766/* 1767 * usbvision_disconnect() 1768 * 1769 * This procedure stops all driver activity, deallocates interface-private 1770 * structure (pointed by 'ptr') and after that driver should be removable 1771 * with no ill consequences. 1772 * 1773 */ 1774static void __devexit usbvision_disconnect(struct usb_interface *intf) 1775{ 1776 struct usb_usbvision *usbvision = usb_get_intfdata(intf); 1777 1778 PDEBUG(DBG_PROBE, ""); 1779 1780 if (usbvision == NULL) { 1781 err("%s: usb_get_intfdata() failed", __func__); 1782 return; 1783 } 1784 usb_set_intfdata (intf, NULL); 1785 1786 mutex_lock(&usbvision->lock); 1787 1788 // At this time we ask to cancel outstanding URBs 1789 usbvision_stop_isoc(usbvision); 1790 1791 if (usbvision->power) { 1792 usbvision_i2c_unregister(usbvision); 1793 usbvision_power_off(usbvision); 1794 } 1795 usbvision->remove_pending = 1; // Now all ISO data will be ignored 1796 1797 usb_put_dev(usbvision->dev); 1798 usbvision->dev = NULL; // USB device is no more 1799 1800 mutex_unlock(&usbvision->lock); 1801 1802 if (usbvision->user) { 1803 printk(KERN_INFO "%s: In use, disconnect pending\n", 1804 __func__); 1805 wake_up_interruptible(&usbvision->wait_frame); 1806 wake_up_interruptible(&usbvision->wait_stream); 1807 } else { 1808 usbvision_release(usbvision); 1809 } 1810 1811 PDEBUG(DBG_PROBE, "success"); 1812} 1813 1814static struct usb_driver usbvision_driver = { 1815 .name = "usbvision", 1816 .id_table = usbvision_table, 1817 .probe = usbvision_probe, 1818 .disconnect = usbvision_disconnect 1819}; 1820 1821/* 1822 * usbvision_init() 1823 * 1824 * This code is run to initialize the driver. 1825 * 1826 */ 1827static int __init usbvision_init(void) 1828{ 1829 int errCode; 1830 1831 PDEBUG(DBG_PROBE, ""); 1832 1833 PDEBUG(DBG_IO, "IO debugging is enabled [video]"); 1834 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]"); 1835 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]"); 1836 1837 /* disable planar mode support unless compression enabled */ 1838 if (isocMode != ISOC_MODE_COMPRESS ) { 1839 // FIXME : not the right way to set supported flag 1840 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420 1841 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P 1842 } 1843 1844 errCode = usb_register(&usbvision_driver); 1845 1846 if (errCode == 0) { 1847 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n"); 1848 PDEBUG(DBG_PROBE, "success"); 1849 } 1850 return errCode; 1851} 1852 1853static void __exit usbvision_exit(void) 1854{ 1855 PDEBUG(DBG_PROBE, ""); 1856 1857 usb_deregister(&usbvision_driver); 1858 PDEBUG(DBG_PROBE, "success"); 1859} 1860 1861module_init(usbvision_init); 1862module_exit(usbvision_exit); 1863 1864/* 1865 * Overrides for Emacs so that we follow Linus's tabbing style. 1866 * --------------------------------------------------------------------------- 1867 * Local variables: 1868 * c-basic-offset: 8 1869 * End: 1870 */ 1871