]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blame - drivers/media/video/usbvision/usbvision-video.c
projects / mirror_ubuntu-hirsute-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
V4L/DVB (5899): bttv: Fix Viewcast Osprey 440 support
[mirror_ubuntu-hirsute-kernel.git] / drivers / media / video / usbvision / usbvision-video.c
CommitLineData
483dfdb6 1/*
7ca659e3 2 * USB USBVISION Video device driver 0.9.9
483dfdb6
TM		 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.
c5f48367
TM		 39 * - Add audio on endpoint 3 for nt1004 chip.
40 * Seems impossible, needs a codec interface. Which one?
483dfdb6
TM		 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
f30ebd43 48#include <linux/version.h>
483dfdb6 49#include <linux/kernel.h>
483dfdb6
TM		 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>
483dfdb6
TM		 56#include <linux/videodev.h>
57#include <linux/vmalloc.h>
58#include <linux/module.h>
59#include <linux/init.h>
60#include <linux/spinlock.h>
61#include <asm/io.h>
62#include <linux/videodev2.h>
63#include <linux/video_decoder.h>
64#include <linux/i2c.h>
65
66#include <media/saa7115.h>
67#include <media/v4l2-common.h>
68#include <media/tuner.h>
69#include <media/audiochip.h>
70
a1ed551c
MCC		 71#include <linux/moduleparam.h>
72#include <linux/workqueue.h>
483dfdb6
TM		 73
74#ifdef CONFIG_KMOD
75#include <linux/kmod.h>
76#endif
77
78#include "usbvision.h"
659ae56d 79#include "usbvision-cards.h"
483dfdb6 80
c5f48367
TM		 81#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
82 Dwaine Garden <DwaineGarden@rogers.com>"
483dfdb6
TM		 83#define DRIVER_NAME "usbvision"
84#define DRIVER_ALIAS "USBVision"
85#define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
86#define DRIVER_LICENSE "GPL"
87#define USBVISION_DRIVER_VERSION_MAJOR 0
88#define USBVISION_DRIVER_VERSION_MINOR 9
89#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
c5f48367
TM		 90#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
91USBVISION_DRIVER_VERSION_MINOR,\
92USBVISION_DRIVER_VERSION_PATCHLEVEL)
93#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
94 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
95 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
483dfdb6
TM		 96
97#define ENABLE_HEXDUMP 0 /* Enable if you need it */
98
99
483dfdb6
TM		 100#ifdef USBVISION_DEBUG
101 #define PDEBUG(level, fmt, args...) \
c5f48367
TM		 102 if (video_debug & (level)) \
103 info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ ,\
104 ## args)
483dfdb6
TM		 105#else
106 #define PDEBUG(level, fmt, args...) do {} while(0)
107#endif
108
483dfdb6
TM		 109#define DBG_IO 1<<1
110#define DBG_PROBE 1<<2
c876a346 111#define DBG_MMAP 1<<3
483dfdb6
TM		 112
113//String operations
114#define rmspace(str) while(*str==' ') str++;
115#define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
116
117
c5f48367
TM		 118/* sequential number of usbvision device */
119static int usbvision_nr = 0;
483dfdb6
TM		 120
121static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
122 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
123 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
124 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
125 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
126 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
127 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
128 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
129 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
130};
131
c5f48367 132/* Function prototypes */
483dfdb6
TM		 133static void usbvision_release(struct usb_usbvision *usbvision);
134
c5f48367
TM		 135/* Default initalization of device driver parameters */
136/* Set the default format for ISOC endpoint */
137static int isocMode = ISOC_MODE_COMPRESS;
138/* Set the default Debug Mode of the device driver */
139static int video_debug = 0;
140/* Set the default device to power on at startup */
141static int PowerOnAtOpen = 1;
142/* Sequential Number of Video Device */
143static int video_nr = -1;
144/* Sequential Number of Radio Device */
145static int radio_nr = -1;
146/* Sequential Number of VBI Device */
147static int vbi_nr = -1;
148
149/* Grab parameters for the device driver */
150
151/* Showing parameters under SYSFS */
483dfdb6
TM		 152module_param(isocMode, int, 0444);
153module_param(video_debug, int, 0444);
154module_param(PowerOnAtOpen, int, 0444);
155module_param(video_nr, int, 0444);
156module_param(radio_nr, int, 0444);
157module_param(vbi_nr, int, 0444);
483dfdb6
TM		 158
159MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
160MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
161MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
162MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
163MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
164MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
483dfdb6
TM		 165
166
167// Misc stuff
168MODULE_AUTHOR(DRIVER_AUTHOR);
169MODULE_DESCRIPTION(DRIVER_DESC);
170MODULE_LICENSE(DRIVER_LICENSE);
a1ed551c
MCC		 171MODULE_VERSION(USBVISION_VERSION_STRING);
172MODULE_ALIAS(DRIVER_ALIAS);
483dfdb6
TM		 173
174
c5f48367
TM		 175/*****************************************************************************/
176/* SYSFS Code - Copied from the stv680.c usb module. */
177/* Device information is located at /sys/class/video4linux/video0 */
178/* Device parameters information is located at /sys/module/usbvision */
179/* Device USB Information is located at */
180/* /sys/bus/usb/drivers/USBVision Video Grabber */
181/*****************************************************************************/
483dfdb6
TM		 182
183
184#define YES_NO(x) ((x) ? "Yes" : "No")
185
186static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
187{
c5f48367
TM		 188 struct video_device *vdev =
189 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 190 return video_get_drvdata(vdev);
191}
192
193static ssize_t show_version(struct class_device *cd, char *buf)
194{
195 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
196}
197static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
198
ed00b41d 199static ssize_t show_model(struct class_device *cd, char *buf)
483dfdb6 200{
c5f48367
TM		 201 struct video_device *vdev =
202 container_of(cd, struct video_device, class_dev);
483dfdb6 203 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 204 return sprintf(buf, "%s\n",
205 usbvision_device_data[usbvision->DevModel].ModelString);
483dfdb6
TM		 206}
207static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
208
ed00b41d 209static ssize_t show_hue(struct class_device *cd, char *buf)
483dfdb6 210{
c5f48367
TM		 211 struct video_device *vdev =
212 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 213 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
214 struct v4l2_control ctrl;
215 ctrl.id = V4L2_CID_HUE;
216 ctrl.value = 0;
ed00b41d
DG		 217 if(usbvision->user)
218 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 219 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6
TM		 220}
221static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
222
ed00b41d 223static ssize_t show_contrast(struct class_device *cd, char *buf)
483dfdb6 224{
c5f48367
TM		 225 struct video_device *vdev =
226 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 227 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
228 struct v4l2_control ctrl;
229 ctrl.id = V4L2_CID_CONTRAST;
230 ctrl.value = 0;
ed00b41d
DG		 231 if(usbvision->user)
232 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 233 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6
TM		 234}
235static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
236
ed00b41d 237static ssize_t show_brightness(struct class_device *cd, char *buf)
483dfdb6 238{
c5f48367
TM		 239 struct video_device *vdev =
240 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 241 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
242 struct v4l2_control ctrl;
243 ctrl.id = V4L2_CID_BRIGHTNESS;
244 ctrl.value = 0;
ed00b41d
DG		 245 if(usbvision->user)
246 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 247 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6
TM		 248}
249static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
250
ed00b41d 251static ssize_t show_saturation(struct class_device *cd, char *buf)
483dfdb6 252{
c5f48367
TM		 253 struct video_device *vdev =
254 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 255 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
256 struct v4l2_control ctrl;
257 ctrl.id = V4L2_CID_SATURATION;
258 ctrl.value = 0;
ed00b41d
DG		 259 if(usbvision->user)
260 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
2a9f8b5d 261 return sprintf(buf, "%d\n", ctrl.value);
483dfdb6
TM		 262}
263static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
264
ed00b41d 265static ssize_t show_streaming(struct class_device *cd, char *buf)
483dfdb6 266{
c5f48367
TM		 267 struct video_device *vdev =
268 container_of(cd, struct video_device, class_dev);
483dfdb6 269 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 270 return sprintf(buf, "%s\n",
271 YES_NO(usbvision->streaming==Stream_On?1:0));
483dfdb6
TM		 272}
273static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
274
ed00b41d 275static ssize_t show_compression(struct class_device *cd, char *buf)
483dfdb6 276{
c5f48367
TM		 277 struct video_device *vdev =
278 container_of(cd, struct video_device, class_dev);
483dfdb6 279 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
c5f48367
TM		 280 return sprintf(buf, "%s\n",
281 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
483dfdb6
TM		 282}
283static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
284
ed00b41d 285static ssize_t show_device_bridge(struct class_device *cd, char *buf)
483dfdb6 286{
c5f48367
TM		 287 struct video_device *vdev =
288 container_of(cd, struct video_device, class_dev);
483dfdb6
TM		 289 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
290 return sprintf(buf, "%d\n", usbvision->bridgeType);
291}
292static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
293
294static void usbvision_create_sysfs(struct video_device *vdev)
295{
296 int res;
ed00b41d
DG		 297 if (!vdev)
298 return;
299 do {
300 res=class_device_create_file(&vdev->class_dev,
301 &class_device_attr_version);
302 if (res<0)
303 break;
304 res=class_device_create_file(&vdev->class_dev,
305 &class_device_attr_model);
306 if (res<0)
307 break;
308 res=class_device_create_file(&vdev->class_dev,
309 &class_device_attr_hue);
310 if (res<0)
311 break;
312 res=class_device_create_file(&vdev->class_dev,
313 &class_device_attr_contrast);
314 if (res<0)
315 break;
316 res=class_device_create_file(&vdev->class_dev,
317 &class_device_attr_brightness);
318 if (res<0)
319 break;
320 res=class_device_create_file(&vdev->class_dev,
321 &class_device_attr_saturation);
322 if (res<0)
323 break;
324 res=class_device_create_file(&vdev->class_dev,
325 &class_device_attr_streaming);
326 if (res<0)
327 break;
328 res=class_device_create_file(&vdev->class_dev,
329 &class_device_attr_compression);
330 if (res<0)
331 break;
332 res=class_device_create_file(&vdev->class_dev,
333 &class_device_attr_bridge);
334 if (res>=0)
335 return;
336 } while (0);
337
338 err("%s error: %d\n", __FUNCTION__, res);
483dfdb6
TM		 339}
340
341static void usbvision_remove_sysfs(struct video_device *vdev)
342{
343 if (vdev) {
ed00b41d
DG		 344 class_device_remove_file(&vdev->class_dev,
345 &class_device_attr_version);
346 class_device_remove_file(&vdev->class_dev,
347 &class_device_attr_model);
348 class_device_remove_file(&vdev->class_dev,
349 &class_device_attr_hue);
350 class_device_remove_file(&vdev->class_dev,
351 &class_device_attr_contrast);
352 class_device_remove_file(&vdev->class_dev,
353 &class_device_attr_brightness);
354 class_device_remove_file(&vdev->class_dev,
355 &class_device_attr_saturation);
356 class_device_remove_file(&vdev->class_dev,
357 &class_device_attr_streaming);
358 class_device_remove_file(&vdev->class_dev,
359 &class_device_attr_compression);
360 class_device_remove_file(&vdev->class_dev,
361 &class_device_attr_bridge);
483dfdb6
TM		 362 }
363}
364
365
366/*
367 * usbvision_open()
368 *
369 * This is part of Video 4 Linux API. The driver can be opened by one
370 * client only (checks internal counter 'usbvision->user'). The procedure
371 * then allocates buffers needed for video processing.
372 *
373 */
374static int usbvision_v4l2_open(struct inode *inode, struct file *file)
375{
376 struct video_device *dev = video_devdata(file);
c5f48367
TM		 377 struct usb_usbvision *usbvision =
378 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 379 int errCode = 0;
380
381 PDEBUG(DBG_IO, "open");
382
383
384 usbvision_reset_powerOffTimer(usbvision);
385
386 if (usbvision->user)
387 errCode = -EBUSY;
388 else {
6f78e186
TM		 389 /* Allocate memory for the scratch ring buffer */
390 errCode = usbvision_scratch_alloc(usbvision);
391 if (isocMode==ISOC_MODE_COMPRESS) {
c5f48367
TM		 392 /* Allocate intermediate decompression buffers
393 only if needed */
6f78e186 394 errCode = usbvision_decompress_alloc(usbvision);
483dfdb6
TM		 395 }
396 if (errCode) {
397 /* Deallocate all buffers if trouble */
483dfdb6 398 usbvision_scratch_free(usbvision);
483dfdb6
TM		 399 usbvision_decompress_free(usbvision);
400 }
401 }
402
403 /* If so far no errors then we shall start the camera */
404 if (!errCode) {
405 down(&usbvision->lock);
406 if (usbvision->power == 0) {
407 usbvision_power_on(usbvision);
1ff16c20 408 usbvision_i2c_register(usbvision);
483dfdb6
TM		 409 }
410
411 /* Send init sequence only once, it's large! */
412 if (!usbvision->initialized) {
413 int setup_ok = 0;
414 setup_ok = usbvision_setup(usbvision,isocMode);
415 if (setup_ok)
416 usbvision->initialized = 1;
417 else
418 errCode = -EBUSY;
419 }
420
421 if (!errCode) {
422 usbvision_begin_streaming(usbvision);
423 errCode = usbvision_init_isoc(usbvision);
c5f48367 424 /* device must be initialized before isoc transfer */
483dfdb6
TM		 425 usbvision_muxsel(usbvision,0);
426 usbvision->user++;
c5f48367 427 } else {
483dfdb6 428 if (PowerOnAtOpen) {
1ff16c20 429 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 430 usbvision_power_off(usbvision);
431 usbvision->initialized = 0;
432 }
433 }
434 up(&usbvision->lock);
435 }
436
437 if (errCode) {
438 }
439
440 /* prepare queues */
441 usbvision_empty_framequeues(usbvision);
442
443 PDEBUG(DBG_IO, "success");
444 return errCode;
445}
446
447/*
448 * usbvision_v4l2_close()
449 *
450 * This is part of Video 4 Linux API. The procedure
451 * stops streaming and deallocates all buffers that were earlier
452 * allocated in usbvision_v4l2_open().
453 *
454 */
455static int usbvision_v4l2_close(struct inode *inode, struct file *file)
456{
457 struct video_device *dev = video_devdata(file);
c5f48367
TM		 458 struct usb_usbvision *usbvision =
459 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 460
461 PDEBUG(DBG_IO, "close");
462 down(&usbvision->lock);
463
464 usbvision_audio_off(usbvision);
465 usbvision_restart_isoc(usbvision);
466 usbvision_stop_isoc(usbvision);
467
468 usbvision_decompress_free(usbvision);
38284ba3 469 usbvision_frames_free(usbvision);
6f78e186 470 usbvision_empty_framequeues(usbvision);
483dfdb6 471 usbvision_scratch_free(usbvision);
483dfdb6
TM		 472
473 usbvision->user--;
474
475 if (PowerOnAtOpen) {
c5f48367
TM		 476 /* power off in a little while
477 to avoid off/on every close/open short sequences */
483dfdb6
TM		 478 usbvision_set_powerOffTimer(usbvision);
479 usbvision->initialized = 0;
480 }
481
482 up(&usbvision->lock);
483
484 if (usbvision->remove_pending) {
de6a1b8e 485 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
483dfdb6
TM		 486 usbvision_release(usbvision);
487 }
488
489 PDEBUG(DBG_IO, "success");
490
491
492 return 0;
493}
494
495
496/*
497 * usbvision_ioctl()
498 *
499 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
500 *
501 */
c5f48367
TM		 502#ifdef CONFIG_VIDEO_ADV_DEBUG
503static int vidioc_g_register (struct file *file, void *priv,
504 struct v4l2_register *reg)
483dfdb6
TM		 505{
506 struct video_device *dev = video_devdata(file);
c5f48367
TM		 507 struct usb_usbvision *usbvision =
508 (struct usb_usbvision *) video_get_drvdata(dev);
509 int errCode;
483dfdb6 510
c5f48367
TM		 511 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
512 return -EINVAL;
513 /* NT100x has a 8-bit register space */
514 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
515 if (errCode < 0) {
516 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
517 __FUNCTION__, errCode);
518 return errCode;
519 }
520 return 0;
521}
483dfdb6 522
c5f48367
TM		 523static int vidioc_s_register (struct file *file, void *priv,
524 struct v4l2_register *reg)
525{
526 struct video_device *dev = video_devdata(file);
527 struct usb_usbvision *usbvision =
528 (struct usb_usbvision *) video_get_drvdata(dev);
529 int errCode;
62d50add 530
c5f48367
TM		 531 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
532 return -EINVAL;
533 /* NT100x has a 8-bit register space */
534 reg->val = (u8)usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
535 if (reg->val < 0) {
536 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
537 __FUNCTION__, errCode);
538 return errCode;
539 }
540 return 0;
541}
483dfdb6 542#endif
c5f48367
TM		 543
544static int vidioc_querycap (struct file *file, void *priv,
545 struct v4l2_capability *vc)
546{
547 struct video_device *dev = video_devdata(file);
548 struct usb_usbvision *usbvision =
549 (struct usb_usbvision *) video_get_drvdata(dev);
550
551 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
552 strlcpy(vc->card,
553 usbvision_device_data[usbvision->DevModel].ModelString,
554 sizeof(vc->card));
555 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
556 sizeof(vc->bus_info));
557 vc->version = USBVISION_DRIVER_VERSION;
558 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
559 V4L2_CAP_AUDIO |
560 V4L2_CAP_READWRITE |
561 V4L2_CAP_STREAMING |
562 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
563 return 0;
564}
565
566static int vidioc_enum_input (struct file *file, void *priv,
567 struct v4l2_input *vi)
568{
569 struct video_device *dev = video_devdata(file);
570 struct usb_usbvision *usbvision =
571 (struct usb_usbvision *) video_get_drvdata(dev);
572 int chan;
573
574 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
575 return -EINVAL;
576 if (usbvision->have_tuner) {
577 chan = vi->index;
578 } else {
579 chan = vi->index + 1; /*skip Television string*/
580 }
581 /* Determine the requested input characteristics
582 specific for each usbvision card model */
583 switch(chan) {
584 case 0:
585 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
586 strcpy(vi->name, "White Video Input");
587 } else {
588 strcpy(vi->name, "Television");
589 vi->type = V4L2_INPUT_TYPE_TUNER;
590 vi->audioset = 1;
591 vi->tuner = chan;
592 vi->std = USBVISION_NORMS;
483dfdb6 593 }
c5f48367
TM		 594 break;
595 case 1:
596 vi->type = V4L2_INPUT_TYPE_CAMERA;
597 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
598 strcpy(vi->name, "Green Video Input");
599 } else {
600 strcpy(vi->name, "Composite Video Input");
483dfdb6 601 }
c5f48367
TM		 602 vi->std = V4L2_STD_PAL;
603 break;
604 case 2:
605 vi->type = V4L2_INPUT_TYPE_CAMERA;
606 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
607 strcpy(vi->name, "Yellow Video Input");
608 } else {
609 strcpy(vi->name, "S-Video Input");
483dfdb6 610 }
c5f48367
TM		 611 vi->std = V4L2_STD_PAL;
612 break;
613 case 3:
614 vi->type = V4L2_INPUT_TYPE_CAMERA;
615 strcpy(vi->name, "Red Video Input");
616 vi->std = V4L2_STD_PAL;
617 break;
618 }
619 return 0;
620}
483dfdb6 621
c5f48367
TM		 622static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
623{
624 struct video_device *dev = video_devdata(file);
625 struct usb_usbvision *usbvision =
626 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 627
c5f48367
TM		 628 *input = usbvision->ctl_input;
629 return 0;
630}
483dfdb6 631
c5f48367
TM		 632static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
633{
634 struct video_device *dev = video_devdata(file);
635 struct usb_usbvision *usbvision =
636 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 637
c5f48367
TM		 638 if ((input >= usbvision->video_inputs) || (input < 0) )
639 return -EINVAL;
483dfdb6 640
c5f48367 641 down(&usbvision->lock);
66a17879 642 usbvision_muxsel(usbvision, input);
c5f48367
TM		 643 usbvision_set_input(usbvision);
644 usbvision_set_output(usbvision,
645 usbvision->curwidth,
646 usbvision->curheight);
647 up(&usbvision->lock);
648 return 0;
649}
483dfdb6 650
c5f48367
TM		 651static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
652{
653 struct video_device *dev = video_devdata(file);
654 struct usb_usbvision *usbvision =
655 (struct usb_usbvision *) video_get_drvdata(dev);
656 usbvision->tvnormId=*id;
483dfdb6 657
c5f48367
TM		 658 down(&usbvision->lock);
659 call_i2c_clients(usbvision, VIDIOC_S_STD,
660 &usbvision->tvnormId);
661 up(&usbvision->lock);
66a17879
TM		 662 /* propagate the change to the decoder */
663 usbvision_muxsel(usbvision, usbvision->ctl_input);
483dfdb6 664
c5f48367
TM		 665 return 0;
666}
483dfdb6 667
c5f48367
TM		 668static int vidioc_g_tuner (struct file *file, void *priv,
669 struct v4l2_tuner *vt)
670{
671 struct video_device *dev = video_devdata(file);
672 struct usb_usbvision *usbvision =
673 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 674
c5f48367
TM		 675 if (!usbvision->have_tuner || vt->index) // Only tuner 0
676 return -EINVAL;
677 if(usbvision->radio) {
678 strcpy(vt->name, "Radio");
679 vt->type = V4L2_TUNER_RADIO;
680 } else {
681 strcpy(vt->name, "Television");
682 }
683 /* Let clients fill in the remainder of this struct */
684 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
483dfdb6 685
c5f48367
TM		 686 return 0;
687}
483dfdb6 688
c5f48367
TM		 689static int vidioc_s_tuner (struct file *file, void *priv,
690 struct v4l2_tuner *vt)
691{
692 struct video_device *dev = video_devdata(file);
693 struct usb_usbvision *usbvision =
694 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 695
c5f48367
TM		 696 // Only no or one tuner for now
697 if (!usbvision->have_tuner || vt->index)
698 return -EINVAL;
699 /* let clients handle this */
700 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
483dfdb6 701
c5f48367
TM		 702 return 0;
703}
483dfdb6 704
c5f48367
TM		 705static int vidioc_g_frequency (struct file *file, void *priv,
706 struct v4l2_frequency *freq)
707{
708 struct video_device *dev = video_devdata(file);
709 struct usb_usbvision *usbvision =
710 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 711
c5f48367
TM		 712 freq->tuner = 0; // Only one tuner
713 if(usbvision->radio) {
714 freq->type = V4L2_TUNER_RADIO;
715 } else {
716 freq->type = V4L2_TUNER_ANALOG_TV;
717 }
718 freq->frequency = usbvision->freq;
483dfdb6 719
c5f48367
TM		 720 return 0;
721}
483dfdb6 722
c5f48367
TM		 723static int vidioc_s_frequency (struct file *file, void *priv,
724 struct v4l2_frequency *freq)
725{
726 struct video_device *dev = video_devdata(file);
727 struct usb_usbvision *usbvision =
728 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 729
c5f48367
TM		 730 // Only no or one tuner for now
731 if (!usbvision->have_tuner || freq->tuner)
732 return -EINVAL;
483dfdb6 733
c5f48367
TM		 734 usbvision->freq = freq->frequency;
735 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
483dfdb6 736
c5f48367
TM		 737 return 0;
738}
483dfdb6 739
c5f48367
TM		 740static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
741{
742 struct video_device *dev = video_devdata(file);
743 struct usb_usbvision *usbvision =
744 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 745
c5f48367
TM		 746 memset(a,0,sizeof(*a));
747 if(usbvision->radio) {
748 strcpy(a->name,"Radio");
749 } else {
750 strcpy(a->name, "TV");
751 }
483dfdb6 752
c5f48367
TM		 753 return 0;
754}
483dfdb6 755
c5f48367
TM		 756static int vidioc_s_audio (struct file *file, void *fh,
757 struct v4l2_audio *a)
758{
759 if(a->index) {
760 return -EINVAL;
761 }
483dfdb6 762
c5f48367
TM		 763 return 0;
764}
483dfdb6 765
c5f48367
TM		 766static int vidioc_queryctrl (struct file *file, void *priv,
767 struct v4l2_queryctrl *ctrl)
768{
769 struct video_device *dev = video_devdata(file);
770 struct usb_usbvision *usbvision =
771 (struct usb_usbvision *) video_get_drvdata(dev);
772 int id=ctrl->id;
483dfdb6 773
c5f48367
TM		 774 memset(ctrl,0,sizeof(*ctrl));
775 ctrl->id=id;
483dfdb6 776
c5f48367 777 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
483dfdb6 778
c5f48367
TM		 779 if (!ctrl->type)
780 return -EINVAL;
483dfdb6 781
c5f48367
TM		 782 return 0;
783}
483dfdb6 784
c5f48367
TM		 785static int vidioc_g_ctrl (struct file *file, void *priv,
786 struct v4l2_control *ctrl)
787{
788 struct video_device *dev = video_devdata(file);
789 struct usb_usbvision *usbvision =
790 (struct usb_usbvision *) video_get_drvdata(dev);
791 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
483dfdb6 792
c5f48367
TM		 793 return 0;
794}
795
796static int vidioc_s_ctrl (struct file *file, void *priv,
797 struct v4l2_control *ctrl)
798{
799 struct video_device *dev = video_devdata(file);
800 struct usb_usbvision *usbvision =
801 (struct usb_usbvision *) video_get_drvdata(dev);
802 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
803
804 return 0;
805}
806
807static int vidioc_reqbufs (struct file *file,
808 void *priv, struct v4l2_requestbuffers *vr)
809{
810 struct video_device *dev = video_devdata(file);
811 struct usb_usbvision *usbvision =
812 (struct usb_usbvision *) video_get_drvdata(dev);
813 int ret;
814
815 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
816
817 /* Check input validity:
818 the user must do a VIDEO CAPTURE and MMAP method. */
819 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
820 (vr->memory != V4L2_MEMORY_MMAP))
821 return -EINVAL;
822
823 if(usbvision->streaming == Stream_On) {
824 if ((ret = usbvision_stream_interrupt(usbvision)))
825 return ret;
483dfdb6 826 }
c5f48367
TM		 827
828 usbvision_frames_free(usbvision);
829 usbvision_empty_framequeues(usbvision);
830 vr->count = usbvision_frames_alloc(usbvision,vr->count);
831
832 usbvision->curFrame = NULL;
833
483dfdb6
TM		 834 return 0;
835}
836
c5f48367
TM		 837static int vidioc_querybuf (struct file *file,
838 void *priv, struct v4l2_buffer *vb)
483dfdb6 839{
c5f48367
TM		 840 struct video_device *dev = video_devdata(file);
841 struct usb_usbvision *usbvision =
842 (struct usb_usbvision *) video_get_drvdata(dev);
843 struct usbvision_frame *frame;
844
845 /* FIXME : must control
846 that buffers are mapped (VIDIOC_REQBUFS has been called) */
847 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
848 return -EINVAL;
849 }
850 if(vb->index>=usbvision->num_frames) {
851 return -EINVAL;
852 }
853 /* Updating the corresponding frame state */
854 vb->flags = 0;
855 frame = &usbvision->frame[vb->index];
856 if(frame->grabstate >= FrameState_Ready)
857 vb->flags |= V4L2_BUF_FLAG_QUEUED;
858 if(frame->grabstate >= FrameState_Done)
859 vb->flags |= V4L2_BUF_FLAG_DONE;
860 if(frame->grabstate == FrameState_Unused)
861 vb->flags |= V4L2_BUF_FLAG_MAPPED;
862 vb->memory = V4L2_MEMORY_MMAP;
863
864 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
865
866 vb->memory = V4L2_MEMORY_MMAP;
867 vb->field = V4L2_FIELD_NONE;
868 vb->length = usbvision->curwidth*
869 usbvision->curheight*
870 usbvision->palette.bytes_per_pixel;
871 vb->timestamp = usbvision->frame[vb->index].timestamp;
872 vb->sequence = usbvision->frame[vb->index].sequence;
873 return 0;
483dfdb6
TM		 874}
875
c5f48367
TM		 876static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
877{
878 struct video_device *dev = video_devdata(file);
879 struct usb_usbvision *usbvision =
880 (struct usb_usbvision *) video_get_drvdata(dev);
881 struct usbvision_frame *frame;
882 unsigned long lock_flags;
883
884 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
885 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
886 return -EINVAL;
887 }
888 if(vb->index>=usbvision->num_frames) {
889 return -EINVAL;
890 }
891
892 frame = &usbvision->frame[vb->index];
893
894 if (frame->grabstate != FrameState_Unused) {
895 return -EAGAIN;
896 }
897
898 /* Mark it as ready and enqueue frame */
899 frame->grabstate = FrameState_Ready;
900 frame->scanstate = ScanState_Scanning;
901 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
902
903 vb->flags &= ~V4L2_BUF_FLAG_DONE;
904
905 /* set v4l2_format index */
906 frame->v4l2_format = usbvision->palette;
907
908 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
909 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
910 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
911
912 return 0;
913}
914
915static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
916{
917 struct video_device *dev = video_devdata(file);
918 struct usb_usbvision *usbvision =
919 (struct usb_usbvision *) video_get_drvdata(dev);
920 int ret;
921 struct usbvision_frame *f;
922 unsigned long lock_flags;
923
924 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
925 return -EINVAL;
926
927 if (list_empty(&(usbvision->outqueue))) {
928 if (usbvision->streaming == Stream_Idle)
929 return -EINVAL;
930 ret = wait_event_interruptible
931 (usbvision->wait_frame,
932 !list_empty(&(usbvision->outqueue)));
933 if (ret)
934 return ret;
935 }
936
937 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
938 f = list_entry(usbvision->outqueue.next,
939 struct usbvision_frame, frame);
940 list_del(usbvision->outqueue.next);
941 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
942
943 f->grabstate = FrameState_Unused;
944
945 vb->memory = V4L2_MEMORY_MMAP;
946 vb->flags = V4L2_BUF_FLAG_MAPPED |
947 V4L2_BUF_FLAG_QUEUED |
948 V4L2_BUF_FLAG_DONE;
949 vb->index = f->index;
950 vb->sequence = f->sequence;
951 vb->timestamp = f->timestamp;
952 vb->field = V4L2_FIELD_NONE;
953 vb->bytesused = f->scanlength;
954
955 return 0;
956}
957
958static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
959{
960 struct video_device *dev = video_devdata(file);
961 struct usb_usbvision *usbvision =
962 (struct usb_usbvision *) video_get_drvdata(dev);
963 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
964
965 usbvision->streaming = Stream_On;
966 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
967
968 return 0;
969}
970
971static int vidioc_streamoff(struct file *file,
972 void *priv, enum v4l2_buf_type type)
973{
974 struct video_device *dev = video_devdata(file);
975 struct usb_usbvision *usbvision =
976 (struct usb_usbvision *) video_get_drvdata(dev);
977 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
978
979 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
980 return -EINVAL;
981
982 if(usbvision->streaming == Stream_On) {
983 usbvision_stream_interrupt(usbvision);
984 /* Stop all video streamings */
985 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
986 }
987 usbvision_empty_framequeues(usbvision);
988
989 return 0;
990}
991
992static int vidioc_enum_fmt_cap (struct file *file, void *priv,
993 struct v4l2_fmtdesc *vfd)
994{
995 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
996 return -EINVAL;
997 }
998 vfd->flags = 0;
999 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1000 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
1001 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
1002 memset(vfd->reserved, 0, sizeof(vfd->reserved));
1003 return 0;
1004}
1005
1006static int vidioc_g_fmt_cap (struct file *file, void *priv,
1007 struct v4l2_format *vf)
1008{
1009 struct video_device *dev = video_devdata(file);
1010 struct usb_usbvision *usbvision =
1011 (struct usb_usbvision *) video_get_drvdata(dev);
1012 vf->fmt.pix.width = usbvision->curwidth;
1013 vf->fmt.pix.height = usbvision->curheight;
1014 vf->fmt.pix.pixelformat = usbvision->palette.format;
1015 vf->fmt.pix.bytesperline =
1016 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
1017 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
1018 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1019 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
1020
1021 return 0;
1022}
1023
1024static int vidioc_try_fmt_cap (struct file *file, void *priv,
1025 struct v4l2_format *vf)
1026{
1027 struct video_device *dev = video_devdata(file);
1028 struct usb_usbvision *usbvision =
1029 (struct usb_usbvision *) video_get_drvdata(dev);
1030 int formatIdx;
1031
1032 /* Find requested format in available ones */
1033 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1034 if(vf->fmt.pix.pixelformat ==
1035 usbvision_v4l2_format[formatIdx].format) {
1036 usbvision->palette = usbvision_v4l2_format[formatIdx];
1037 break;
1038 }
1039 }
1040 /* robustness */
1041 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1042 return -EINVAL;
1043 }
1044 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1045 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1046
1047 vf->fmt.pix.bytesperline = vf->fmt.pix.width*
1048 usbvision->palette.bytes_per_pixel;
1049 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1050
1051 return 0;
1052}
1053
1054static int vidioc_s_fmt_cap(struct file *file, void *priv,
1055 struct v4l2_format *vf)
1056{
1057 struct video_device *dev = video_devdata(file);
1058 struct usb_usbvision *usbvision =
1059 (struct usb_usbvision *) video_get_drvdata(dev);
1060 int ret;
1061
1062 if( 0 != (ret=vidioc_try_fmt_cap (file, priv, vf)) ) {
1063 return ret;
1064 }
1065
1066 /* stop io in case it is already in progress */
1067 if(usbvision->streaming == Stream_On) {
1068 if ((ret = usbvision_stream_interrupt(usbvision)))
1069 return ret;
1070 }
1071 usbvision_frames_free(usbvision);
1072 usbvision_empty_framequeues(usbvision);
1073
1074 usbvision->curFrame = NULL;
1075
1076 /* by now we are committed to the new data... */
1077 down(&usbvision->lock);
1078 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1079 up(&usbvision->lock);
1080
1081 return 0;
1082}
483dfdb6 1083
8a5ab415 1084static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
483dfdb6
TM		 1085 size_t count, loff_t *ppos)
1086{
1087 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1088 struct usb_usbvision *usbvision =
1089 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1090 int noblock = file->f_flags & O_NONBLOCK;
1091 unsigned long lock_flags;
1092
483dfdb6
TM		 1093 int ret,i;
1094 struct usbvision_frame *frame;
1095
c5f48367
TM		 1096 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__,
1097 (unsigned long)count, noblock);
483dfdb6
TM		 1098
1099 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1100 return -EFAULT;
1101
c5f48367
TM		 1102 /* This entry point is compatible with the mmap routines
1103 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1104 to get frames or call read on the device. */
6f78e186 1105 if(!usbvision->num_frames) {
c5f48367
TM		 1106 /* First, allocate some frames to work with
1107 if this has not been done with VIDIOC_REQBUF */
6f78e186
TM		 1108 usbvision_frames_free(usbvision);
1109 usbvision_empty_framequeues(usbvision);
1110 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1111 }
1112
1113 if(usbvision->streaming != Stream_On) {
1114 /* no stream is running, make it running ! */
1115 usbvision->streaming = Stream_On;
1116 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1117 }
483dfdb6 1118
c5f48367
TM		 1119 /* Then, enqueue as many frames as possible
1120 (like a user of VIDIOC_QBUF would do) */
6f78e186 1121 for(i=0;i<usbvision->num_frames;i++) {
483dfdb6
TM		 1122 frame = &usbvision->frame[i];
1123 if(frame->grabstate == FrameState_Unused) {
1124 /* Mark it as ready and enqueue frame */
1125 frame->grabstate = FrameState_Ready;
1126 frame->scanstate = ScanState_Scanning;
c5f48367
TM		 1127 /* Accumulated in usbvision_parse_data() */
1128 frame->scanlength = 0;
483dfdb6
TM		 1129
1130 /* set v4l2_format index */
1131 frame->v4l2_format = usbvision->palette;
1132
1133 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1134 list_add_tail(&frame->frame, &usbvision->inqueue);
c5f48367
TM		 1135 spin_unlock_irqrestore(&usbvision->queue_lock,
1136 lock_flags);
483dfdb6
TM		 1137 }
1138 }
1139
1140 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1141 if (list_empty(&(usbvision->outqueue))) {
1142 if(noblock)
1143 return -EAGAIN;
1144
1145 ret = wait_event_interruptible
1146 (usbvision->wait_frame,
1147 !list_empty(&(usbvision->outqueue)));
1148 if (ret)
1149 return ret;
1150 }
1151
1152 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1153 frame = list_entry(usbvision->outqueue.next,
1154 struct usbvision_frame, frame);
1155 list_del(usbvision->outqueue.next);
1156 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1157
1158 /* An error returns an empty frame */
1159 if (frame->grabstate == FrameState_Error) {
1160 frame->bytes_read = 0;
1161 return 0;
1162 }
1163
c5f48367
TM		 1164 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1165 __FUNCTION__,
1166 frame->index, frame->bytes_read, frame->scanlength);
483dfdb6
TM		 1167
1168 /* copy bytes to user space; we allow for partials reads */
1169 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1170 count = frame->scanlength - frame->bytes_read;
1171
1172 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1173 return -EFAULT;
1174 }
1175
1176 frame->bytes_read += count;
c5f48367
TM		 1177 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1178 __FUNCTION__,
1179 (unsigned long)count, frame->bytes_read);
483dfdb6 1180
c5f48367 1181 /* For now, forget the frame if it has not been read in one shot. */
483dfdb6
TM		 1182/* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1183 frame->bytes_read = 0;
1184
1185 /* Mark it as available to be used again. */
c430ca1e 1186 frame->grabstate = FrameState_Unused;
483dfdb6
TM		 1187/* } */
1188
1189 return count;
1190}
1191
1192static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1193{
1194 unsigned long size = vma->vm_end - vma->vm_start,
1195 start = vma->vm_start;
1196 void *pos;
1197 u32 i;
1198
1199 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1200 struct usb_usbvision *usbvision =
1201 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6 1202
6f78e186
TM		 1203 PDEBUG(DBG_MMAP, "mmap");
1204
483dfdb6
TM		 1205 down(&usbvision->lock);
1206
1207 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1208 up(&usbvision->lock);
1209 return -EFAULT;
1210 }
1211
1212 if (!(vma->vm_flags & VM_WRITE) ||
6f78e186 1213 size != PAGE_ALIGN(usbvision->max_frame_size)) {
483dfdb6
TM		 1214 up(&usbvision->lock);
1215 return -EINVAL;
1216 }
1217
6f78e186 1218 for (i = 0; i < usbvision->num_frames; i++) {
c5f48367
TM		 1219 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1220 vma->vm_pgoff)
483dfdb6
TM		 1221 break;
1222 }
6f78e186 1223 if (i == usbvision->num_frames) {
c5f48367
TM		 1224 PDEBUG(DBG_MMAP,
1225 "mmap: user supplied mapping address is out of range");
483dfdb6
TM		 1226 up(&usbvision->lock);
1227 return -EINVAL;
1228 }
1229
1230 /* VM_IO is eventually going to replace PageReserved altogether */
1231 vma->vm_flags |= VM_IO;
1232 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1233
1234 pos = usbvision->frame[i].data;
1235 while (size > 0) {
1236
1237 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
c876a346 1238 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
483dfdb6
TM		 1239 up(&usbvision->lock);
1240 return -EAGAIN;
1241 }
1242 start += PAGE_SIZE;
1243 pos += PAGE_SIZE;
1244 size -= PAGE_SIZE;
1245 }
1246
1247 up(&usbvision->lock);
1248 return 0;
1249}
1250
1251
1252/*
1253 * Here comes the stuff for radio on usbvision based devices
1254 *
1255 */
1256static int usbvision_radio_open(struct inode *inode, struct file *file)
1257{
1258 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1259 struct usb_usbvision *usbvision =
1260 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1261 int errCode = 0;
1262
1263 PDEBUG(DBG_IO, "%s:", __FUNCTION__);
1264
1265 down(&usbvision->lock);
1266
1267 if (usbvision->user) {
1268 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
1269 errCode = -EBUSY;
1270 }
1271 else {
1272 if(PowerOnAtOpen) {
1273 usbvision_reset_powerOffTimer(usbvision);
1274 if (usbvision->power == 0) {
1275 usbvision_power_on(usbvision);
1ff16c20 1276 usbvision_i2c_register(usbvision);
483dfdb6
TM		 1277 }
1278 }
1279
2a9f8b5d
TM		 1280 /* Alternate interface 1 is is the biggest frame size */
1281 errCode = usbvision_set_alternate(usbvision);
1282 if (errCode < 0) {
1283 usbvision->last_error = errCode;
1284 return -EBUSY;
1285 }
1286
483dfdb6
TM		 1287 // If so far no errors then we shall start the radio
1288 usbvision->radio = 1;
1289 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
483dfdb6
TM		 1290 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1291 usbvision->user++;
1292 }
1293
1294 if (errCode) {
1295 if (PowerOnAtOpen) {
1ff16c20 1296 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 1297 usbvision_power_off(usbvision);
1298 usbvision->initialized = 0;
1299 }
1300 }
1301 up(&usbvision->lock);
1302 return errCode;
1303}
1304
1305
1306static int usbvision_radio_close(struct inode *inode, struct file *file)
1307{
1308 struct video_device *dev = video_devdata(file);
c5f48367
TM		 1309 struct usb_usbvision *usbvision =
1310 (struct usb_usbvision *) video_get_drvdata(dev);
483dfdb6
TM		 1311 int errCode = 0;
1312
1313 PDEBUG(DBG_IO, "");
1314
1315 down(&usbvision->lock);
1316
2a9f8b5d
TM		 1317 /* Set packet size to 0 */
1318 usbvision->ifaceAlt=0;
1319 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1320 usbvision->ifaceAlt);
1321
483dfdb6
TM		 1322 usbvision_audio_off(usbvision);
1323 usbvision->radio=0;
1324 usbvision->user--;
1325
1326 if (PowerOnAtOpen) {
1327 usbvision_set_powerOffTimer(usbvision);
1328 usbvision->initialized = 0;
1329 }
1330
1331 up(&usbvision->lock);
1332
1333 if (usbvision->remove_pending) {
de6a1b8e 1334 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
483dfdb6
TM		 1335 usbvision_release(usbvision);
1336 }
1337
1338
1339 PDEBUG(DBG_IO, "success");
1340
1341 return errCode;
1342}
1343
483dfdb6
TM		 1344/*
1345 * Here comes the stuff for vbi on usbvision based devices
1346 *
1347 */
1348static int usbvision_vbi_open(struct inode *inode, struct file *file)
1349{
1350 /* TODO */
c5f48367 1351 return -ENODEV;
483dfdb6
TM		 1352
1353}
1354
1355static int usbvision_vbi_close(struct inode *inode, struct file *file)
1356{
1357 /* TODO */
c5f48367 1358 return -ENODEV;
483dfdb6
TM		 1359}
1360
1361static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1362 unsigned int cmd, void *arg)
1363{
1364 /* TODO */
c5f48367 1365 return -ENOIOCTLCMD;
483dfdb6
TM		 1366}
1367
1368static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1369 unsigned int cmd, unsigned long arg)
1370{
1371 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1372}
1373
1374
1375//
1376// Video registration stuff
1377//
1378
1379// Video template
fa027c2a 1380static const struct file_operations usbvision_fops = {
483dfdb6 1381 .owner = THIS_MODULE,
483dfdb6
TM		 1382 .open = usbvision_v4l2_open,
1383 .release = usbvision_v4l2_close,
1384 .read = usbvision_v4l2_read,
1385 .mmap = usbvision_v4l2_mmap,
c5f48367 1386 .ioctl = video_ioctl2,
483dfdb6 1387 .llseek = no_llseek,
c5f48367
TM		 1388/* .poll = video_poll, */
1389 .mmap = usbvision_v4l2_mmap,
1390 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1391};
1392static struct video_device usbvision_video_template = {
483dfdb6 1393 .owner = THIS_MODULE,
483dfdb6
TM		 1394 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
1395 .hardware = VID_HARDWARE_USBVISION,
1396 .fops = &usbvision_fops,
483dfdb6
TM		 1397 .name = "usbvision-video",
1398 .release = video_device_release,
483dfdb6 1399 .minor = -1,
c5f48367
TM		 1400 .vidioc_querycap = vidioc_querycap,
1401 .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
1402 .vidioc_g_fmt_cap = vidioc_g_fmt_cap,
1403 .vidioc_try_fmt_cap = vidioc_try_fmt_cap,
1404 .vidioc_s_fmt_cap = vidioc_s_fmt_cap,
1405 .vidioc_reqbufs = vidioc_reqbufs,
1406 .vidioc_querybuf = vidioc_querybuf,
1407 .vidioc_qbuf = vidioc_qbuf,
1408 .vidioc_dqbuf = vidioc_dqbuf,
1409 .vidioc_s_std = vidioc_s_std,
1410 .vidioc_enum_input = vidioc_enum_input,
1411 .vidioc_g_input = vidioc_g_input,
1412 .vidioc_s_input = vidioc_s_input,
1413 .vidioc_queryctrl = vidioc_queryctrl,
1414 .vidioc_g_audio = vidioc_g_audio,
1415 .vidioc_g_audio = vidioc_s_audio,
1416 .vidioc_g_ctrl = vidioc_g_ctrl,
1417 .vidioc_s_ctrl = vidioc_s_ctrl,
1418 .vidioc_streamon = vidioc_streamon,
1419 .vidioc_streamoff = vidioc_streamoff,
1420#ifdef CONFIG_VIDEO_V4L1_COMPAT
1421/* .vidiocgmbuf = vidiocgmbuf, */
1422#endif
1423 .vidioc_g_tuner = vidioc_g_tuner,
1424 .vidioc_s_tuner = vidioc_s_tuner,
1425 .vidioc_g_frequency = vidioc_g_frequency,
1426 .vidioc_s_frequency = vidioc_s_frequency,
1427#ifdef CONFIG_VIDEO_ADV_DEBUG
1428 .vidioc_g_register = vidioc_g_register,
1429 .vidioc_s_register = vidioc_s_register,
1430#endif
1431 .tvnorms = USBVISION_NORMS,
1432 .current_norm = V4L2_STD_PAL
483dfdb6
TM		 1433};
1434
1435
1436// Radio template
fa027c2a 1437static const struct file_operations usbvision_radio_fops = {
483dfdb6 1438 .owner = THIS_MODULE,
483dfdb6
TM		 1439 .open = usbvision_radio_open,
1440 .release = usbvision_radio_close,
c5f48367 1441 .ioctl = video_ioctl2,
483dfdb6 1442 .llseek = no_llseek,
c5f48367 1443 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1444};
1445
1446static struct video_device usbvision_radio_template=
1447{
483dfdb6 1448 .owner = THIS_MODULE,
483dfdb6
TM		 1449 .type = VID_TYPE_TUNER,
1450 .hardware = VID_HARDWARE_USBVISION,
1451 .fops = &usbvision_radio_fops,
483dfdb6 1452 .name = "usbvision-radio",
c5f48367 1453 .release = video_device_release,
483dfdb6 1454 .minor = -1,
c5f48367
TM		 1455 .vidioc_querycap = vidioc_querycap,
1456 .vidioc_enum_input = vidioc_enum_input,
1457 .vidioc_g_input = vidioc_g_input,
1458 .vidioc_s_input = vidioc_s_input,
1459 .vidioc_queryctrl = vidioc_queryctrl,
1460 .vidioc_g_audio = vidioc_g_audio,
1461 .vidioc_g_audio = vidioc_s_audio,
1462 .vidioc_g_ctrl = vidioc_g_ctrl,
1463 .vidioc_s_ctrl = vidioc_s_ctrl,
1464 .vidioc_g_tuner = vidioc_g_tuner,
1465 .vidioc_s_tuner = vidioc_s_tuner,
1466 .vidioc_g_frequency = vidioc_g_frequency,
1467 .vidioc_s_frequency = vidioc_s_frequency,
1468
1469 .tvnorms = USBVISION_NORMS,
1470 .current_norm = V4L2_STD_PAL
483dfdb6
TM		 1471};
1472
483dfdb6 1473// vbi template
fa027c2a 1474static const struct file_operations usbvision_vbi_fops = {
483dfdb6 1475 .owner = THIS_MODULE,
483dfdb6
TM		 1476 .open = usbvision_vbi_open,
1477 .release = usbvision_vbi_close,
1478 .ioctl = usbvision_vbi_ioctl,
1479 .llseek = no_llseek,
c5f48367 1480 .compat_ioctl = v4l_compat_ioctl32,
483dfdb6
TM		 1481};
1482
1483static struct video_device usbvision_vbi_template=
1484{
483dfdb6 1485 .owner = THIS_MODULE,
483dfdb6
TM		 1486 .type = VID_TYPE_TUNER,
1487 .hardware = VID_HARDWARE_USBVISION,
1488 .fops = &usbvision_vbi_fops,
483dfdb6
TM		 1489 .release = video_device_release,
1490 .name = "usbvision-vbi",
483dfdb6
TM		 1491 .minor = -1,
1492};
1493
1494
1495static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1496 struct video_device *vdev_template,
1497 char *name)
1498{
1499 struct usb_device *usb_dev = usbvision->dev;
1500 struct video_device *vdev;
1501
1502 if (usb_dev == NULL) {
1503 err("%s: usbvision->dev is not set", __FUNCTION__);
1504 return NULL;
1505 }
1506
1507 vdev = video_device_alloc();
1508 if (NULL == vdev) {
1509 return NULL;
1510 }
1511 *vdev = *vdev_template;
1512// vdev->minor = -1;
1513 vdev->dev = &usb_dev->dev;
1514 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1515 video_set_drvdata(vdev, usbvision);
1516 return vdev;
1517}
1518
1519// unregister video4linux devices
1520static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1521{
1522 // vbi Device:
1523 if (usbvision->vbi) {
c5f48367
TM		 1524 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1525 usbvision->vbi->minor & 0x1f);
483dfdb6
TM		 1526 if (usbvision->vbi->minor != -1) {
1527 video_unregister_device(usbvision->vbi);
c5f48367 1528 } else {
483dfdb6
TM		 1529 video_device_release(usbvision->vbi);
1530 }
1531 usbvision->vbi = NULL;
1532 }
1533
1534 // Radio Device:
1535 if (usbvision->rdev) {
c5f48367
TM		 1536 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1537 usbvision->rdev->minor & 0x1f);
483dfdb6
TM		 1538 if (usbvision->rdev->minor != -1) {
1539 video_unregister_device(usbvision->rdev);
c5f48367 1540 } else {
483dfdb6
TM		 1541 video_device_release(usbvision->rdev);
1542 }
1543 usbvision->rdev = NULL;
1544 }
1545
1546 // Video Device:
1547 if (usbvision->vdev) {
c5f48367
TM		 1548 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1549 usbvision->vdev->minor & 0x1f);
483dfdb6
TM		 1550 if (usbvision->vdev->minor != -1) {
1551 video_unregister_device(usbvision->vdev);
c5f48367 1552 } else {
483dfdb6
TM		 1553 video_device_release(usbvision->vdev);
1554 }
1555 usbvision->vdev = NULL;
1556 }
1557}
1558
1559// register video4linux devices
1560static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1561{
1562 // Video Device:
c5f48367
TM		 1563 usbvision->vdev = usbvision_vdev_init(usbvision,
1564 &usbvision_video_template,
1565 "USBVision Video");
483dfdb6
TM		 1566 if (usbvision->vdev == NULL) {
1567 goto err_exit;
1568 }
c5f48367
TM		 1569 if (video_register_device(usbvision->vdev,
1570 VFL_TYPE_GRABBER,
1571 video_nr)<0) {
483dfdb6
TM		 1572 goto err_exit;
1573 }
c5f48367
TM		 1574 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1575 usbvision->nr,usbvision->vdev->minor & 0x1f);
483dfdb6
TM		 1576
1577 // Radio Device:
1578 if (usbvision_device_data[usbvision->DevModel].Radio) {
1579 // usbvision has radio
c5f48367
TM		 1580 usbvision->rdev = usbvision_vdev_init(usbvision,
1581 &usbvision_radio_template,
1582 "USBVision Radio");
483dfdb6
TM		 1583 if (usbvision->rdev == NULL) {
1584 goto err_exit;
1585 }
c5f48367
TM		 1586 if (video_register_device(usbvision->rdev,
1587 VFL_TYPE_RADIO,
1588 radio_nr)<0) {
483dfdb6
TM		 1589 goto err_exit;
1590 }
c5f48367
TM		 1591 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1592 usbvision->nr, usbvision->rdev->minor & 0x1f);
483dfdb6
TM		 1593 }
1594 // vbi Device:
1595 if (usbvision_device_data[usbvision->DevModel].vbi) {
c5f48367
TM		 1596 usbvision->vbi = usbvision_vdev_init(usbvision,
1597 &usbvision_vbi_template,
1598 "USBVision VBI");
483dfdb6
TM		 1599 if (usbvision->vdev == NULL) {
1600 goto err_exit;
1601 }
c5f48367
TM		 1602 if (video_register_device(usbvision->vbi,
1603 VFL_TYPE_VBI,
1604 vbi_nr)<0) {
483dfdb6
TM		 1605 goto err_exit;
1606 }
c5f48367
TM		 1607 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1608 usbvision->nr,usbvision->vbi->minor & 0x1f);
483dfdb6
TM		 1609 }
1610 // all done
1611 return 0;
1612
1613 err_exit:
1614 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1615 usbvision_unregister_video(usbvision);
1616 return -1;
1617}
1618
1619/*
1620 * usbvision_alloc()
1621 *
c5f48367
TM		 1622 * This code allocates the struct usb_usbvision.
1623 * It is filled with default values.
483dfdb6
TM		 1624 *
1625 * Returns NULL on error, a pointer to usb_usbvision else.
1626 *
1627 */
1628static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1629{
1630 struct usb_usbvision *usbvision;
1631
c5f48367
TM		 1632 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1633 NULL) {
483dfdb6
TM		 1634 goto err_exit;
1635 }
1636
1637 usbvision->dev = dev;
1638
1639 init_MUTEX(&usbvision->lock); /* to 1 == available */
1640
1641 // prepare control urb for control messages during interrupts
1642 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1643 if (usbvision->ctrlUrb == NULL) {
1644 goto err_exit;
1645 }
1646 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1647 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
1648
1649 usbvision_init_powerOffTimer(usbvision);
1650
1651 return usbvision;
1652
1653err_exit:
1654 if (usbvision && usbvision->ctrlUrb) {
1655 usb_free_urb(usbvision->ctrlUrb);
1656 }
1657 if (usbvision) {
1658 kfree(usbvision);
1659 }
1660 return NULL;
1661}
1662
1663/*
1664 * usbvision_release()
1665 *
1666 * This code does final release of struct usb_usbvision. This happens
1667 * after the device is disconnected -and- all clients closed their files.
1668 *
1669 */
1670static void usbvision_release(struct usb_usbvision *usbvision)
1671{
1672 PDEBUG(DBG_PROBE, "");
1673
1674 down(&usbvision->lock);
1675
1676 usbvision_reset_powerOffTimer(usbvision);
1677
1678 usbvision->initialized = 0;
1679
1680 up(&usbvision->lock);
1681
1682 usbvision_remove_sysfs(usbvision->vdev);
1683 usbvision_unregister_video(usbvision);
1684
1685 if (usbvision->ctrlUrb) {
1686 usb_free_urb(usbvision->ctrlUrb);
1687 }
1688
1689 kfree(usbvision);
1690
1691 PDEBUG(DBG_PROBE, "success");
1692}
1693
1694
c5f48367 1695/*********************** usb interface **********************************/
483dfdb6
TM		 1696
1697static void usbvision_configure_video(struct usb_usbvision *usbvision)
1698{
c5f48367 1699 int model;
483dfdb6
TM		 1700
1701 if (usbvision == NULL)
1702 return;
1703
1704 model = usbvision->DevModel;
1705 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1706
c682b3a7 1707 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
c5f48367
TM		 1708 usbvision->Vin_Reg2_Preset =
1709 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
483dfdb6
TM		 1710 } else {
1711 usbvision->Vin_Reg2_Preset = 0;
1712 }
1713
c5f48367 1714 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
483dfdb6
TM		 1715
1716 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1717 usbvision->ctl_input = 0;
1718
1719 /* This should be here to make i2c clients to be able to register */
c5f48367
TM		 1720 /* first switch off audio */
1721 usbvision_audio_off(usbvision);
483dfdb6 1722 if (!PowerOnAtOpen) {
c5f48367
TM		 1723 /* and then power up the noisy tuner */
1724 usbvision_power_on(usbvision);
1ff16c20 1725 usbvision_i2c_register(usbvision);
483dfdb6
TM		 1726 }
1727}
1728
1729/*
1730 * usbvision_probe()
1731 *
1732 * This procedure queries device descriptor and accepts the interface
1733 * if it looks like USBVISION video device
1734 *
1735 */
659ae56d
MCC		 1736static int __devinit usbvision_probe(struct usb_interface *intf,
1737 const struct usb_device_id *devid)
483dfdb6 1738{
2a9f8b5d
TM		 1739 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1740 struct usb_interface *uif;
483dfdb6
TM		 1741 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1742 const struct usb_host_interface *interface;
1743 struct usb_usbvision *usbvision = NULL;
1744 const struct usb_endpoint_descriptor *endpoint;
2a9f8b5d 1745 int model,i;
483dfdb6
TM		 1746
1747 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
659ae56d
MCC		 1748 dev->descriptor.idVendor,
1749 dev->descriptor.idProduct, ifnum);
2a9f8b5d 1750
659ae56d 1751 model = devid->driver_info;
f8a389db 1752 if ( (model<0) || (model>=usbvision_device_data_size) ) {
672d013b 1753 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
f8a389db
MCC		 1754 return -ENODEV;
1755 }
659ae56d
MCC		 1756 printk(KERN_INFO "%s: %s found\n", __FUNCTION__,
1757 usbvision_device_data[model].ModelString);
483dfdb6 1758
483dfdb6
TM		 1759 if (usbvision_device_data[model].Interface >= 0) {
1760 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
c5f48367 1761 } else {
483dfdb6
TM		 1762 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1763 }
1764 endpoint = &interface->endpoint[1].desc;
c5f48367
TM		 1765 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1766 USB_ENDPOINT_XFER_ISOC) {
1767 err("%s: interface %d. has non-ISO endpoint!",
1768 __FUNCTION__, ifnum);
1769 err("%s: Endpoint attributes %d",
1770 __FUNCTION__, endpoint->bmAttributes);
483dfdb6
TM		 1771 return -ENODEV;
1772 }
c5f48367
TM		 1773 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1774 USB_DIR_OUT) {
1775 err("%s: interface %d. has ISO OUT endpoint!",
1776 __FUNCTION__, ifnum);
483dfdb6
TM		 1777 return -ENODEV;
1778 }
1779
483dfdb6
TM		 1780 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1781 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
1782 return -ENOMEM;
1783 }
659ae56d 1784
483dfdb6
TM		 1785 if (dev->descriptor.bNumConfigurations > 1) {
1786 usbvision->bridgeType = BRIDGE_NT1004;
c5f48367 1787 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
483dfdb6 1788 usbvision->bridgeType = BRIDGE_NT1005;
c5f48367 1789 } else {
483dfdb6
TM		 1790 usbvision->bridgeType = BRIDGE_NT1003;
1791 }
1792 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1793
1794 down(&usbvision->lock);
1795
2a9f8b5d
TM		 1796 /* compute alternate max packet sizes */
1797 uif = dev->actconfig->interface[0];
1798
1799 usbvision->num_alt=uif->num_altsetting;
1800 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1801 usbvision->alt_max_pkt_size = kmalloc(32*
1802 usbvision->num_alt,GFP_KERNEL);
1803 if (usbvision->alt_max_pkt_size == NULL) {
1804 err("usbvision: out of memory!\n");
1805 return -ENOMEM;
1806 }
1807
1808 for (i = 0; i < usbvision->num_alt ; i++) {
1809 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1810 wMaxPacketSize);
1811 usbvision->alt_max_pkt_size[i] =
1812 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1813 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1814 usbvision->alt_max_pkt_size[i]);
1815 }
1816
1817
483dfdb6
TM		 1818 usbvision->nr = usbvision_nr++;
1819
1820 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1821 if (usbvision->have_tuner) {
1822 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1823 }
1824
1825 usbvision->tuner_addr = ADDR_UNSET;
1826
1827 usbvision->DevModel = model;
1828 usbvision->remove_pending = 0;
1829 usbvision->iface = ifnum;
2a9f8b5d 1830 usbvision->ifaceAlt = 0;
483dfdb6
TM		 1831 usbvision->video_endp = endpoint->bEndpointAddress;
1832 usbvision->isocPacketSize = 0;
1833 usbvision->usb_bandwidth = 0;
1834 usbvision->user = 0;
1835 usbvision->streaming = Stream_Off;
1836 usbvision_register_video(usbvision);
1837 usbvision_configure_video(usbvision);
1838 up(&usbvision->lock);
1839
1840
1841 usb_set_intfdata (intf, usbvision);
1842 usbvision_create_sysfs(usbvision->vdev);
1843
1844 PDEBUG(DBG_PROBE, "success");
1845 return 0;
1846}
1847
1848
1849/*
1850 * usbvision_disconnect()
1851 *
1852 * This procedure stops all driver activity, deallocates interface-private
1853 * structure (pointed by 'ptr') and after that driver should be removable
1854 * with no ill consequences.
1855 *
1856 */
1857static void __devexit usbvision_disconnect(struct usb_interface *intf)
1858{
1859 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1860
1861 PDEBUG(DBG_PROBE, "");
1862
1863 if (usbvision == NULL) {
1864 err("%s: usb_get_intfdata() failed", __FUNCTION__);
1865 return;
1866 }
1867 usb_set_intfdata (intf, NULL);
1868
1869 down(&usbvision->lock);
1870
1871 // At this time we ask to cancel outstanding URBs
1872 usbvision_stop_isoc(usbvision);
1873
1874 if (usbvision->power) {
1ff16c20 1875 usbvision_i2c_unregister(usbvision);
483dfdb6
TM		 1876 usbvision_power_off(usbvision);
1877 }
1878 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1879
1880 usb_put_dev(usbvision->dev);
1881 usbvision->dev = NULL; // USB device is no more
1882
1883 up(&usbvision->lock);
1884
1885 if (usbvision->user) {
c5f48367
TM		 1886 printk(KERN_INFO "%s: In use, disconnect pending\n",
1887 __FUNCTION__);
483dfdb6
TM		 1888 wake_up_interruptible(&usbvision->wait_frame);
1889 wake_up_interruptible(&usbvision->wait_stream);
c5f48367 1890 } else {
483dfdb6
TM		 1891 usbvision_release(usbvision);
1892 }
1893
1894 PDEBUG(DBG_PROBE, "success");
1895
1896}
1897
1898static struct usb_driver usbvision_driver = {
1899 .name = "usbvision",
1900 .id_table = usbvision_table,
1901 .probe = usbvision_probe,
1902 .disconnect = usbvision_disconnect
1903};
1904
483dfdb6
TM		 1905/*
1906 * usbvision_init()
1907 *
1908 * This code is run to initialize the driver.
1909 *
1910 */
1911static int __init usbvision_init(void)
1912{
1913 int errCode;
1914
1915 PDEBUG(DBG_PROBE, "");
1916
483dfdb6
TM		 1917 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1918 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
c876a346 1919 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
483dfdb6
TM		 1920
1921 /* disable planar mode support unless compression enabled */
1922 if (isocMode != ISOC_MODE_COMPRESS ) {
1923 // FIXME : not the right way to set supported flag
1924 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1925 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1926 }
1927
483dfdb6
TM		 1928 errCode = usb_register(&usbvision_driver);
1929
1930 if (errCode == 0) {
de6a1b8e 1931 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
483dfdb6
TM		 1932 PDEBUG(DBG_PROBE, "success");
1933 }
1934 return errCode;
1935}
1936
1937static void __exit usbvision_exit(void)
1938{
1939 PDEBUG(DBG_PROBE, "");
1940
1941 usb_deregister(&usbvision_driver);
1942 PDEBUG(DBG_PROBE, "success");
1943}
1944
1945module_init(usbvision_init);
1946module_exit(usbvision_exit);
1947
1948/*
1949 * Overrides for Emacs so that we follow Linus's tabbing style.
1950 * ---------------------------------------------------------------------------
1951 * Local variables:
1952 * c-basic-offset: 8
1953 * End:
1954 */
Ubuntu Hirsute Linux kernel mirror