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[mirror_ubuntu-artful-kernel.git] / drivers / media / video / usbvision / usbvision-video.c
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/videodev.h>
57 #include <linux/vmalloc.h>
58 #include <linux/module.h>
59 #include <linux/init.h>
60 #include <linux/spinlock.h>
61 #include <asm/io.h>
62 #include <linux/videodev2.h>
63 #include <linux/video_decoder.h>
64 #include <linux/i2c.h>
65
66 #include <media/saa7115.h>
67 #include <media/v4l2-common.h>
68 #include <media/tuner.h>
69 #include <media/audiochip.h>
70
71 #include <linux/workqueue.h>
72
73 #ifdef CONFIG_KMOD
74 #include <linux/kmod.h>
75 #endif
76
77 #include "usbvision.h"
78 #include "usbvision-cards.h"
79
80 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
81 Dwaine Garden <DwaineGarden@rogers.com>"
82 #define DRIVER_NAME "usbvision"
83 #define DRIVER_ALIAS "USBVision"
84 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
85 #define DRIVER_LICENSE "GPL"
86 #define USBVISION_DRIVER_VERSION_MAJOR 0
87 #define USBVISION_DRIVER_VERSION_MINOR 9
88 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
89 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
90 USBVISION_DRIVER_VERSION_MINOR,\
91 USBVISION_DRIVER_VERSION_PATCHLEVEL)
92 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
93 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
94 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
95
96 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
97
98
99 #ifdef USBVISION_DEBUG
100 #define PDEBUG(level, fmt, args...) \
101 if (video_debug & (level)) \
102 info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ ,\
103 ## args)
104 #else
105 #define PDEBUG(level, fmt, args...) do {} while(0)
106 #endif
107
108 #define DBG_IO 1<<1
109 #define DBG_PROBE 1<<2
110 #define DBG_MMAP 1<<3
111
112 //String operations
113 #define rmspace(str) while(*str==' ') str++;
114 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
115
116
117 /* sequential number of usbvision device */
118 static int usbvision_nr = 0;
119
120 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
121 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
122 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
123 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
124 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
125 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
126 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
127 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
128 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
129 };
130
131 /* Function prototypes */
132 static void usbvision_release(struct usb_usbvision *usbvision);
133
134 /* Default initalization of device driver parameters */
135 /* Set the default format for ISOC endpoint */
136 static int isocMode = ISOC_MODE_COMPRESS;
137 /* Set the default Debug Mode of the device driver */
138 static int video_debug = 0;
139 /* Set the default device to power on at startup */
140 static int PowerOnAtOpen = 1;
141 /* Sequential Number of Video Device */
142 static int video_nr = -1;
143 /* Sequential Number of Radio Device */
144 static int radio_nr = -1;
145 /* Sequential Number of VBI Device */
146 static int vbi_nr = -1;
147
148 /* Grab parameters for the device driver */
149
150 /* Showing parameters under SYSFS */
151 module_param(isocMode, int, 0444);
152 module_param(video_debug, int, 0444);
153 module_param(PowerOnAtOpen, int, 0444);
154 module_param(video_nr, int, 0444);
155 module_param(radio_nr, int, 0444);
156 module_param(vbi_nr, int, 0444);
157
158 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
159 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
160 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
161 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
162 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
163 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
164
165
166 // Misc stuff
167 MODULE_AUTHOR(DRIVER_AUTHOR);
168 MODULE_DESCRIPTION(DRIVER_DESC);
169 MODULE_LICENSE(DRIVER_LICENSE);
170 MODULE_VERSION(USBVISION_VERSION_STRING);
171 MODULE_ALIAS(DRIVER_ALIAS);
172
173
174 /*****************************************************************************/
175 /* SYSFS Code - Copied from the stv680.c usb module. */
176 /* Device information is located at /sys/class/video4linux/video0 */
177 /* Device parameters information is located at /sys/module/usbvision */
178 /* Device USB Information is located at */
179 /* /sys/bus/usb/drivers/USBVision Video Grabber */
180 /*****************************************************************************/
181
182
183 #define YES_NO(x) ((x) ? "Yes" : "No")
184
185 static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
186 {
187 struct video_device *vdev =
188 container_of(cd, struct video_device, class_dev);
189 return video_get_drvdata(vdev);
190 }
191
192 static ssize_t show_version(struct class_device *cd, char *buf)
193 {
194 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
195 }
196 static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
197
198 static ssize_t show_model(struct class_device *cd, char *buf)
199 {
200 struct video_device *vdev =
201 container_of(cd, struct video_device, class_dev);
202 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
203 return sprintf(buf, "%s\n",
204 usbvision_device_data[usbvision->DevModel].ModelString);
205 }
206 static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
207
208 static ssize_t show_hue(struct class_device *cd, char *buf)
209 {
210 struct video_device *vdev =
211 container_of(cd, struct video_device, class_dev);
212 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
213 struct v4l2_control ctrl;
214 ctrl.id = V4L2_CID_HUE;
215 ctrl.value = 0;
216 if(usbvision->user)
217 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
218 return sprintf(buf, "%d\n", ctrl.value);
219 }
220 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
221
222 static ssize_t show_contrast(struct class_device *cd, char *buf)
223 {
224 struct video_device *vdev =
225 container_of(cd, struct video_device, class_dev);
226 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
227 struct v4l2_control ctrl;
228 ctrl.id = V4L2_CID_CONTRAST;
229 ctrl.value = 0;
230 if(usbvision->user)
231 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
232 return sprintf(buf, "%d\n", ctrl.value);
233 }
234 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
235
236 static ssize_t show_brightness(struct class_device *cd, char *buf)
237 {
238 struct video_device *vdev =
239 container_of(cd, struct video_device, class_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 }
248 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
249
250 static ssize_t show_saturation(struct class_device *cd, char *buf)
251 {
252 struct video_device *vdev =
253 container_of(cd, struct video_device, class_dev);
254 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
255 struct v4l2_control ctrl;
256 ctrl.id = V4L2_CID_SATURATION;
257 ctrl.value = 0;
258 if(usbvision->user)
259 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
260 return sprintf(buf, "%d\n", ctrl.value);
261 }
262 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
263
264 static ssize_t show_streaming(struct class_device *cd, char *buf)
265 {
266 struct video_device *vdev =
267 container_of(cd, struct video_device, class_dev);
268 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
269 return sprintf(buf, "%s\n",
270 YES_NO(usbvision->streaming==Stream_On?1:0));
271 }
272 static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
273
274 static ssize_t show_compression(struct class_device *cd, char *buf)
275 {
276 struct video_device *vdev =
277 container_of(cd, struct video_device, class_dev);
278 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
279 return sprintf(buf, "%s\n",
280 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
281 }
282 static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
283
284 static ssize_t show_device_bridge(struct class_device *cd, char *buf)
285 {
286 struct video_device *vdev =
287 container_of(cd, struct video_device, class_dev);
288 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
289 return sprintf(buf, "%d\n", usbvision->bridgeType);
290 }
291 static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
292
293 static void usbvision_create_sysfs(struct video_device *vdev)
294 {
295 int res;
296 if (!vdev)
297 return;
298 do {
299 res=class_device_create_file(&vdev->class_dev,
300 &class_device_attr_version);
301 if (res<0)
302 break;
303 res=class_device_create_file(&vdev->class_dev,
304 &class_device_attr_model);
305 if (res<0)
306 break;
307 res=class_device_create_file(&vdev->class_dev,
308 &class_device_attr_hue);
309 if (res<0)
310 break;
311 res=class_device_create_file(&vdev->class_dev,
312 &class_device_attr_contrast);
313 if (res<0)
314 break;
315 res=class_device_create_file(&vdev->class_dev,
316 &class_device_attr_brightness);
317 if (res<0)
318 break;
319 res=class_device_create_file(&vdev->class_dev,
320 &class_device_attr_saturation);
321 if (res<0)
322 break;
323 res=class_device_create_file(&vdev->class_dev,
324 &class_device_attr_streaming);
325 if (res<0)
326 break;
327 res=class_device_create_file(&vdev->class_dev,
328 &class_device_attr_compression);
329 if (res<0)
330 break;
331 res=class_device_create_file(&vdev->class_dev,
332 &class_device_attr_bridge);
333 if (res>=0)
334 return;
335 } while (0);
336
337 err("%s error: %d\n", __FUNCTION__, res);
338 }
339
340 static void usbvision_remove_sysfs(struct video_device *vdev)
341 {
342 if (vdev) {
343 class_device_remove_file(&vdev->class_dev,
344 &class_device_attr_version);
345 class_device_remove_file(&vdev->class_dev,
346 &class_device_attr_model);
347 class_device_remove_file(&vdev->class_dev,
348 &class_device_attr_hue);
349 class_device_remove_file(&vdev->class_dev,
350 &class_device_attr_contrast);
351 class_device_remove_file(&vdev->class_dev,
352 &class_device_attr_brightness);
353 class_device_remove_file(&vdev->class_dev,
354 &class_device_attr_saturation);
355 class_device_remove_file(&vdev->class_dev,
356 &class_device_attr_streaming);
357 class_device_remove_file(&vdev->class_dev,
358 &class_device_attr_compression);
359 class_device_remove_file(&vdev->class_dev,
360 &class_device_attr_bridge);
361 }
362 }
363
364
365 /*
366 * usbvision_open()
367 *
368 * This is part of Video 4 Linux API. The driver can be opened by one
369 * client only (checks internal counter 'usbvision->user'). The procedure
370 * then allocates buffers needed for video processing.
371 *
372 */
373 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
374 {
375 struct video_device *dev = video_devdata(file);
376 struct usb_usbvision *usbvision =
377 (struct usb_usbvision *) video_get_drvdata(dev);
378 int errCode = 0;
379
380 PDEBUG(DBG_IO, "open");
381
382
383 usbvision_reset_powerOffTimer(usbvision);
384
385 if (usbvision->user)
386 errCode = -EBUSY;
387 else {
388 /* Allocate memory for the scratch ring buffer */
389 errCode = usbvision_scratch_alloc(usbvision);
390 if (isocMode==ISOC_MODE_COMPRESS) {
391 /* Allocate intermediate decompression buffers
392 only if needed */
393 errCode = usbvision_decompress_alloc(usbvision);
394 }
395 if (errCode) {
396 /* Deallocate all buffers if trouble */
397 usbvision_scratch_free(usbvision);
398 usbvision_decompress_free(usbvision);
399 }
400 }
401
402 /* If so far no errors then we shall start the camera */
403 if (!errCode) {
404 down(&usbvision->lock);
405 if (usbvision->power == 0) {
406 usbvision_power_on(usbvision);
407 usbvision_i2c_register(usbvision);
408 }
409
410 /* Send init sequence only once, it's large! */
411 if (!usbvision->initialized) {
412 int setup_ok = 0;
413 setup_ok = usbvision_setup(usbvision,isocMode);
414 if (setup_ok)
415 usbvision->initialized = 1;
416 else
417 errCode = -EBUSY;
418 }
419
420 if (!errCode) {
421 usbvision_begin_streaming(usbvision);
422 errCode = usbvision_init_isoc(usbvision);
423 /* device must be initialized before isoc transfer */
424 usbvision_muxsel(usbvision,0);
425 usbvision->user++;
426 } else {
427 if (PowerOnAtOpen) {
428 usbvision_i2c_unregister(usbvision);
429 usbvision_power_off(usbvision);
430 usbvision->initialized = 0;
431 }
432 }
433 up(&usbvision->lock);
434 }
435
436 if (errCode) {
437 }
438
439 /* prepare queues */
440 usbvision_empty_framequeues(usbvision);
441
442 PDEBUG(DBG_IO, "success");
443 return errCode;
444 }
445
446 /*
447 * usbvision_v4l2_close()
448 *
449 * This is part of Video 4 Linux API. The procedure
450 * stops streaming and deallocates all buffers that were earlier
451 * allocated in usbvision_v4l2_open().
452 *
453 */
454 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
455 {
456 struct video_device *dev = video_devdata(file);
457 struct usb_usbvision *usbvision =
458 (struct usb_usbvision *) video_get_drvdata(dev);
459
460 PDEBUG(DBG_IO, "close");
461 down(&usbvision->lock);
462
463 usbvision_audio_off(usbvision);
464 usbvision_restart_isoc(usbvision);
465 usbvision_stop_isoc(usbvision);
466
467 usbvision_decompress_free(usbvision);
468 usbvision_frames_free(usbvision);
469 usbvision_empty_framequeues(usbvision);
470 usbvision_scratch_free(usbvision);
471
472 usbvision->user--;
473
474 if (PowerOnAtOpen) {
475 /* power off in a little while
476 to avoid off/on every close/open short sequences */
477 usbvision_set_powerOffTimer(usbvision);
478 usbvision->initialized = 0;
479 }
480
481 up(&usbvision->lock);
482
483 if (usbvision->remove_pending) {
484 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
485 usbvision_release(usbvision);
486 }
487
488 PDEBUG(DBG_IO, "success");
489
490
491 return 0;
492 }
493
494
495 /*
496 * usbvision_ioctl()
497 *
498 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
499 *
500 */
501 #ifdef CONFIG_VIDEO_ADV_DEBUG
502 static int vidioc_g_register (struct file *file, void *priv,
503 struct v4l2_register *reg)
504 {
505 struct video_device *dev = video_devdata(file);
506 struct usb_usbvision *usbvision =
507 (struct usb_usbvision *) video_get_drvdata(dev);
508 int errCode;
509
510 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
511 return -EINVAL;
512 /* NT100x has a 8-bit register space */
513 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
514 if (errCode < 0) {
515 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
516 __FUNCTION__, errCode);
517 return errCode;
518 }
519 reg->val = errCode;
520 return 0;
521 }
522
523 static 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;
530
531 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
532 return -EINVAL;
533 /* NT100x has a 8-bit register space */
534 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
535 if (errCode < 0) {
536 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
537 __FUNCTION__, errCode);
538 return errCode;
539 }
540 return 0;
541 }
542 #endif
543
544 static 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
566 static 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;
593 }
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");
601 }
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");
610 }
611 vi->std = V4L2_STD_PAL;
612 break;
613 case 3:
614 vi->type = V4L2_INPUT_TYPE_CAMERA;
615 strcpy(vi->name, "Red Video Input");
616 vi->std = V4L2_STD_PAL;
617 break;
618 }
619 return 0;
620 }
621
622 static 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);
627
628 *input = usbvision->ctl_input;
629 return 0;
630 }
631
632 static 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);
637
638 if ((input >= usbvision->video_inputs) || (input < 0) )
639 return -EINVAL;
640
641 down(&usbvision->lock);
642 usbvision_muxsel(usbvision, input);
643 usbvision_set_input(usbvision);
644 usbvision_set_output(usbvision,
645 usbvision->curwidth,
646 usbvision->curheight);
647 up(&usbvision->lock);
648 return 0;
649 }
650
651 static 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;
657
658 down(&usbvision->lock);
659 call_i2c_clients(usbvision, VIDIOC_S_STD,
660 &usbvision->tvnormId);
661 up(&usbvision->lock);
662 /* propagate the change to the decoder */
663 usbvision_muxsel(usbvision, usbvision->ctl_input);
664
665 return 0;
666 }
667
668 static 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);
674
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);
685
686 return 0;
687 }
688
689 static 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);
695
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);
701
702 return 0;
703 }
704
705 static 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);
711
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;
719
720 return 0;
721 }
722
723 static 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);
729
730 // Only no or one tuner for now
731 if (!usbvision->have_tuner || freq->tuner)
732 return -EINVAL;
733
734 usbvision->freq = freq->frequency;
735 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
736
737 return 0;
738 }
739
740 static 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);
745
746 memset(a,0,sizeof(*a));
747 if(usbvision->radio) {
748 strcpy(a->name,"Radio");
749 } else {
750 strcpy(a->name, "TV");
751 }
752
753 return 0;
754 }
755
756 static int vidioc_s_audio (struct file *file, void *fh,
757 struct v4l2_audio *a)
758 {
759 if(a->index) {
760 return -EINVAL;
761 }
762
763 return 0;
764 }
765
766 static 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;
773
774 memset(ctrl,0,sizeof(*ctrl));
775 ctrl->id=id;
776
777 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
778
779 if (!ctrl->type)
780 return -EINVAL;
781
782 return 0;
783 }
784
785 static 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);
792
793 return 0;
794 }
795
796 static 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
807 static 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;
826 }
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
834 return 0;
835 }
836
837 static int vidioc_querybuf (struct file *file,
838 void *priv, struct v4l2_buffer *vb)
839 {
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;
874 }
875
876 static 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
915 static 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
958 static 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
971 static 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
992 static 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
1006 static 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
1024 static 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
1054 static 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 }
1083
1084 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1085 size_t count, loff_t *ppos)
1086 {
1087 struct video_device *dev = video_devdata(file);
1088 struct usb_usbvision *usbvision =
1089 (struct usb_usbvision *) video_get_drvdata(dev);
1090 int noblock = file->f_flags & O_NONBLOCK;
1091 unsigned long lock_flags;
1092
1093 int ret,i;
1094 struct usbvision_frame *frame;
1095
1096 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__,
1097 (unsigned long)count, noblock);
1098
1099 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1100 return -EFAULT;
1101
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. */
1105 if(!usbvision->num_frames) {
1106 /* First, allocate some frames to work with
1107 if this has not been done with VIDIOC_REQBUF */
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 }
1118
1119 /* Then, enqueue as many frames as possible
1120 (like a user of VIDIOC_QBUF would do) */
1121 for(i=0;i<usbvision->num_frames;i++) {
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;
1127 /* Accumulated in usbvision_parse_data() */
1128 frame->scanlength = 0;
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);
1135 spin_unlock_irqrestore(&usbvision->queue_lock,
1136 lock_flags);
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
1164 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1165 __FUNCTION__,
1166 frame->index, frame->bytes_read, frame->scanlength);
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;
1177 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1178 __FUNCTION__,
1179 (unsigned long)count, frame->bytes_read);
1180
1181 /* For now, forget the frame if it has not been read in one shot. */
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. */
1186 frame->grabstate = FrameState_Unused;
1187 /* } */
1188
1189 return count;
1190 }
1191
1192 static 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);
1200 struct usb_usbvision *usbvision =
1201 (struct usb_usbvision *) video_get_drvdata(dev);
1202
1203 PDEBUG(DBG_MMAP, "mmap");
1204
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) ||
1213 size != PAGE_ALIGN(usbvision->max_frame_size)) {
1214 up(&usbvision->lock);
1215 return -EINVAL;
1216 }
1217
1218 for (i = 0; i < usbvision->num_frames; i++) {
1219 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1220 vma->vm_pgoff)
1221 break;
1222 }
1223 if (i == usbvision->num_frames) {
1224 PDEBUG(DBG_MMAP,
1225 "mmap: user supplied mapping address is out of range");
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))) {
1238 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
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 */
1256 static int usbvision_radio_open(struct inode *inode, struct file *file)
1257 {
1258 struct video_device *dev = video_devdata(file);
1259 struct usb_usbvision *usbvision =
1260 (struct usb_usbvision *) video_get_drvdata(dev);
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);
1276 usbvision_i2c_register(usbvision);
1277 }
1278 }
1279
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
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);
1290 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1291 usbvision->user++;
1292 }
1293
1294 if (errCode) {
1295 if (PowerOnAtOpen) {
1296 usbvision_i2c_unregister(usbvision);
1297 usbvision_power_off(usbvision);
1298 usbvision->initialized = 0;
1299 }
1300 }
1301 up(&usbvision->lock);
1302 return errCode;
1303 }
1304
1305
1306 static int usbvision_radio_close(struct inode *inode, struct file *file)
1307 {
1308 struct video_device *dev = video_devdata(file);
1309 struct usb_usbvision *usbvision =
1310 (struct usb_usbvision *) video_get_drvdata(dev);
1311 int errCode = 0;
1312
1313 PDEBUG(DBG_IO, "");
1314
1315 down(&usbvision->lock);
1316
1317 /* Set packet size to 0 */
1318 usbvision->ifaceAlt=0;
1319 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1320 usbvision->ifaceAlt);
1321
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) {
1334 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
1335 usbvision_release(usbvision);
1336 }
1337
1338
1339 PDEBUG(DBG_IO, "success");
1340
1341 return errCode;
1342 }
1343
1344 /*
1345 * Here comes the stuff for vbi on usbvision based devices
1346 *
1347 */
1348 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1349 {
1350 /* TODO */
1351 return -ENODEV;
1352
1353 }
1354
1355 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1356 {
1357 /* TODO */
1358 return -ENODEV;
1359 }
1360
1361 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1362 unsigned int cmd, void *arg)
1363 {
1364 /* TODO */
1365 return -ENOIOCTLCMD;
1366 }
1367
1368 static 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
1380 static const struct file_operations usbvision_fops = {
1381 .owner = THIS_MODULE,
1382 .open = usbvision_v4l2_open,
1383 .release = usbvision_v4l2_close,
1384 .read = usbvision_v4l2_read,
1385 .mmap = usbvision_v4l2_mmap,
1386 .ioctl = video_ioctl2,
1387 .llseek = no_llseek,
1388 /* .poll = video_poll, */
1389 .compat_ioctl = v4l_compat_ioctl32,
1390 };
1391 static struct video_device usbvision_video_template = {
1392 .owner = THIS_MODULE,
1393 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
1394 .hardware = VID_HARDWARE_USBVISION,
1395 .fops = &usbvision_fops,
1396 .name = "usbvision-video",
1397 .release = video_device_release,
1398 .minor = -1,
1399 .vidioc_querycap = vidioc_querycap,
1400 .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap,
1401 .vidioc_g_fmt_cap = vidioc_g_fmt_cap,
1402 .vidioc_try_fmt_cap = vidioc_try_fmt_cap,
1403 .vidioc_s_fmt_cap = vidioc_s_fmt_cap,
1404 .vidioc_reqbufs = vidioc_reqbufs,
1405 .vidioc_querybuf = vidioc_querybuf,
1406 .vidioc_qbuf = vidioc_qbuf,
1407 .vidioc_dqbuf = vidioc_dqbuf,
1408 .vidioc_s_std = vidioc_s_std,
1409 .vidioc_enum_input = vidioc_enum_input,
1410 .vidioc_g_input = vidioc_g_input,
1411 .vidioc_s_input = vidioc_s_input,
1412 .vidioc_queryctrl = vidioc_queryctrl,
1413 .vidioc_g_audio = vidioc_g_audio,
1414 .vidioc_s_audio = vidioc_s_audio,
1415 .vidioc_g_ctrl = vidioc_g_ctrl,
1416 .vidioc_s_ctrl = vidioc_s_ctrl,
1417 .vidioc_streamon = vidioc_streamon,
1418 .vidioc_streamoff = vidioc_streamoff,
1419 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1420 /* .vidiocgmbuf = vidiocgmbuf, */
1421 #endif
1422 .vidioc_g_tuner = vidioc_g_tuner,
1423 .vidioc_s_tuner = vidioc_s_tuner,
1424 .vidioc_g_frequency = vidioc_g_frequency,
1425 .vidioc_s_frequency = vidioc_s_frequency,
1426 #ifdef CONFIG_VIDEO_ADV_DEBUG
1427 .vidioc_g_register = vidioc_g_register,
1428 .vidioc_s_register = vidioc_s_register,
1429 #endif
1430 .tvnorms = USBVISION_NORMS,
1431 .current_norm = V4L2_STD_PAL
1432 };
1433
1434
1435 // Radio template
1436 static const struct file_operations usbvision_radio_fops = {
1437 .owner = THIS_MODULE,
1438 .open = usbvision_radio_open,
1439 .release = usbvision_radio_close,
1440 .ioctl = video_ioctl2,
1441 .llseek = no_llseek,
1442 .compat_ioctl = v4l_compat_ioctl32,
1443 };
1444
1445 static struct video_device usbvision_radio_template=
1446 {
1447 .owner = THIS_MODULE,
1448 .type = VID_TYPE_TUNER,
1449 .hardware = VID_HARDWARE_USBVISION,
1450 .fops = &usbvision_radio_fops,
1451 .name = "usbvision-radio",
1452 .release = video_device_release,
1453 .minor = -1,
1454 .vidioc_querycap = vidioc_querycap,
1455 .vidioc_enum_input = vidioc_enum_input,
1456 .vidioc_g_input = vidioc_g_input,
1457 .vidioc_s_input = vidioc_s_input,
1458 .vidioc_queryctrl = vidioc_queryctrl,
1459 .vidioc_g_audio = vidioc_g_audio,
1460 .vidioc_s_audio = vidioc_s_audio,
1461 .vidioc_g_ctrl = vidioc_g_ctrl,
1462 .vidioc_s_ctrl = vidioc_s_ctrl,
1463 .vidioc_g_tuner = vidioc_g_tuner,
1464 .vidioc_s_tuner = vidioc_s_tuner,
1465 .vidioc_g_frequency = vidioc_g_frequency,
1466 .vidioc_s_frequency = vidioc_s_frequency,
1467
1468 .tvnorms = USBVISION_NORMS,
1469 .current_norm = V4L2_STD_PAL
1470 };
1471
1472 // vbi template
1473 static const struct file_operations usbvision_vbi_fops = {
1474 .owner = THIS_MODULE,
1475 .open = usbvision_vbi_open,
1476 .release = usbvision_vbi_close,
1477 .ioctl = usbvision_vbi_ioctl,
1478 .llseek = no_llseek,
1479 .compat_ioctl = v4l_compat_ioctl32,
1480 };
1481
1482 static struct video_device usbvision_vbi_template=
1483 {
1484 .owner = THIS_MODULE,
1485 .type = VID_TYPE_TUNER,
1486 .hardware = VID_HARDWARE_USBVISION,
1487 .fops = &usbvision_vbi_fops,
1488 .release = video_device_release,
1489 .name = "usbvision-vbi",
1490 .minor = -1,
1491 };
1492
1493
1494 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1495 struct video_device *vdev_template,
1496 char *name)
1497 {
1498 struct usb_device *usb_dev = usbvision->dev;
1499 struct video_device *vdev;
1500
1501 if (usb_dev == NULL) {
1502 err("%s: usbvision->dev is not set", __FUNCTION__);
1503 return NULL;
1504 }
1505
1506 vdev = video_device_alloc();
1507 if (NULL == vdev) {
1508 return NULL;
1509 }
1510 *vdev = *vdev_template;
1511 // vdev->minor = -1;
1512 vdev->dev = &usb_dev->dev;
1513 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1514 video_set_drvdata(vdev, usbvision);
1515 return vdev;
1516 }
1517
1518 // unregister video4linux devices
1519 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1520 {
1521 // vbi Device:
1522 if (usbvision->vbi) {
1523 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1524 usbvision->vbi->minor & 0x1f);
1525 if (usbvision->vbi->minor != -1) {
1526 video_unregister_device(usbvision->vbi);
1527 } else {
1528 video_device_release(usbvision->vbi);
1529 }
1530 usbvision->vbi = NULL;
1531 }
1532
1533 // Radio Device:
1534 if (usbvision->rdev) {
1535 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1536 usbvision->rdev->minor & 0x1f);
1537 if (usbvision->rdev->minor != -1) {
1538 video_unregister_device(usbvision->rdev);
1539 } else {
1540 video_device_release(usbvision->rdev);
1541 }
1542 usbvision->rdev = NULL;
1543 }
1544
1545 // Video Device:
1546 if (usbvision->vdev) {
1547 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1548 usbvision->vdev->minor & 0x1f);
1549 if (usbvision->vdev->minor != -1) {
1550 video_unregister_device(usbvision->vdev);
1551 } else {
1552 video_device_release(usbvision->vdev);
1553 }
1554 usbvision->vdev = NULL;
1555 }
1556 }
1557
1558 // register video4linux devices
1559 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1560 {
1561 // Video Device:
1562 usbvision->vdev = usbvision_vdev_init(usbvision,
1563 &usbvision_video_template,
1564 "USBVision Video");
1565 if (usbvision->vdev == NULL) {
1566 goto err_exit;
1567 }
1568 if (video_register_device(usbvision->vdev,
1569 VFL_TYPE_GRABBER,
1570 video_nr)<0) {
1571 goto err_exit;
1572 }
1573 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1574 usbvision->nr,usbvision->vdev->minor & 0x1f);
1575
1576 // Radio Device:
1577 if (usbvision_device_data[usbvision->DevModel].Radio) {
1578 // usbvision has radio
1579 usbvision->rdev = usbvision_vdev_init(usbvision,
1580 &usbvision_radio_template,
1581 "USBVision Radio");
1582 if (usbvision->rdev == NULL) {
1583 goto err_exit;
1584 }
1585 if (video_register_device(usbvision->rdev,
1586 VFL_TYPE_RADIO,
1587 radio_nr)<0) {
1588 goto err_exit;
1589 }
1590 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1591 usbvision->nr, usbvision->rdev->minor & 0x1f);
1592 }
1593 // vbi Device:
1594 if (usbvision_device_data[usbvision->DevModel].vbi) {
1595 usbvision->vbi = usbvision_vdev_init(usbvision,
1596 &usbvision_vbi_template,
1597 "USBVision VBI");
1598 if (usbvision->vdev == NULL) {
1599 goto err_exit;
1600 }
1601 if (video_register_device(usbvision->vbi,
1602 VFL_TYPE_VBI,
1603 vbi_nr)<0) {
1604 goto err_exit;
1605 }
1606 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1607 usbvision->nr,usbvision->vbi->minor & 0x1f);
1608 }
1609 // all done
1610 return 0;
1611
1612 err_exit:
1613 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1614 usbvision_unregister_video(usbvision);
1615 return -1;
1616 }
1617
1618 /*
1619 * usbvision_alloc()
1620 *
1621 * This code allocates the struct usb_usbvision.
1622 * It is filled with default values.
1623 *
1624 * Returns NULL on error, a pointer to usb_usbvision else.
1625 *
1626 */
1627 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1628 {
1629 struct usb_usbvision *usbvision;
1630
1631 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1632 NULL) {
1633 goto err_exit;
1634 }
1635
1636 usbvision->dev = dev;
1637
1638 init_MUTEX(&usbvision->lock); /* to 1 == available */
1639
1640 // prepare control urb for control messages during interrupts
1641 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1642 if (usbvision->ctrlUrb == NULL) {
1643 goto err_exit;
1644 }
1645 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1646 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
1647
1648 usbvision_init_powerOffTimer(usbvision);
1649
1650 return usbvision;
1651
1652 err_exit:
1653 if (usbvision && usbvision->ctrlUrb) {
1654 usb_free_urb(usbvision->ctrlUrb);
1655 }
1656 if (usbvision) {
1657 kfree(usbvision);
1658 }
1659 return NULL;
1660 }
1661
1662 /*
1663 * usbvision_release()
1664 *
1665 * This code does final release of struct usb_usbvision. This happens
1666 * after the device is disconnected -and- all clients closed their files.
1667 *
1668 */
1669 static void usbvision_release(struct usb_usbvision *usbvision)
1670 {
1671 PDEBUG(DBG_PROBE, "");
1672
1673 down(&usbvision->lock);
1674
1675 usbvision_reset_powerOffTimer(usbvision);
1676
1677 usbvision->initialized = 0;
1678
1679 up(&usbvision->lock);
1680
1681 usbvision_remove_sysfs(usbvision->vdev);
1682 usbvision_unregister_video(usbvision);
1683
1684 if (usbvision->ctrlUrb) {
1685 usb_free_urb(usbvision->ctrlUrb);
1686 }
1687
1688 kfree(usbvision);
1689
1690 PDEBUG(DBG_PROBE, "success");
1691 }
1692
1693
1694 /*********************** usb interface **********************************/
1695
1696 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1697 {
1698 int model;
1699
1700 if (usbvision == NULL)
1701 return;
1702
1703 model = usbvision->DevModel;
1704 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1705
1706 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1707 usbvision->Vin_Reg2_Preset =
1708 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1709 } else {
1710 usbvision->Vin_Reg2_Preset = 0;
1711 }
1712
1713 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1714
1715 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1716 usbvision->ctl_input = 0;
1717
1718 /* This should be here to make i2c clients to be able to register */
1719 /* first switch off audio */
1720 usbvision_audio_off(usbvision);
1721 if (!PowerOnAtOpen) {
1722 /* and then power up the noisy tuner */
1723 usbvision_power_on(usbvision);
1724 usbvision_i2c_register(usbvision);
1725 }
1726 }
1727
1728 /*
1729 * usbvision_probe()
1730 *
1731 * This procedure queries device descriptor and accepts the interface
1732 * if it looks like USBVISION video device
1733 *
1734 */
1735 static int __devinit usbvision_probe(struct usb_interface *intf,
1736 const struct usb_device_id *devid)
1737 {
1738 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1739 struct usb_interface *uif;
1740 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1741 const struct usb_host_interface *interface;
1742 struct usb_usbvision *usbvision = NULL;
1743 const struct usb_endpoint_descriptor *endpoint;
1744 int model,i;
1745
1746 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1747 dev->descriptor.idVendor,
1748 dev->descriptor.idProduct, ifnum);
1749
1750 model = devid->driver_info;
1751 if ( (model<0) || (model>=usbvision_device_data_size) ) {
1752 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1753 return -ENODEV;
1754 }
1755 printk(KERN_INFO "%s: %s found\n", __FUNCTION__,
1756 usbvision_device_data[model].ModelString);
1757
1758 if (usbvision_device_data[model].Interface >= 0) {
1759 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1760 } else {
1761 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1762 }
1763 endpoint = &interface->endpoint[1].desc;
1764 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1765 USB_ENDPOINT_XFER_ISOC) {
1766 err("%s: interface %d. has non-ISO endpoint!",
1767 __FUNCTION__, ifnum);
1768 err("%s: Endpoint attributes %d",
1769 __FUNCTION__, endpoint->bmAttributes);
1770 return -ENODEV;
1771 }
1772 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1773 USB_DIR_OUT) {
1774 err("%s: interface %d. has ISO OUT endpoint!",
1775 __FUNCTION__, ifnum);
1776 return -ENODEV;
1777 }
1778
1779 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1780 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
1781 return -ENOMEM;
1782 }
1783
1784 if (dev->descriptor.bNumConfigurations > 1) {
1785 usbvision->bridgeType = BRIDGE_NT1004;
1786 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1787 usbvision->bridgeType = BRIDGE_NT1005;
1788 } else {
1789 usbvision->bridgeType = BRIDGE_NT1003;
1790 }
1791 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1792
1793 down(&usbvision->lock);
1794
1795 /* compute alternate max packet sizes */
1796 uif = dev->actconfig->interface[0];
1797
1798 usbvision->num_alt=uif->num_altsetting;
1799 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1800 usbvision->alt_max_pkt_size = kmalloc(32*
1801 usbvision->num_alt,GFP_KERNEL);
1802 if (usbvision->alt_max_pkt_size == NULL) {
1803 err("usbvision: out of memory!\n");
1804 return -ENOMEM;
1805 }
1806
1807 for (i = 0; i < usbvision->num_alt ; i++) {
1808 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1809 wMaxPacketSize);
1810 usbvision->alt_max_pkt_size[i] =
1811 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1812 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1813 usbvision->alt_max_pkt_size[i]);
1814 }
1815
1816
1817 usbvision->nr = usbvision_nr++;
1818
1819 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1820 if (usbvision->have_tuner) {
1821 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1822 }
1823
1824 usbvision->tuner_addr = ADDR_UNSET;
1825
1826 usbvision->DevModel = model;
1827 usbvision->remove_pending = 0;
1828 usbvision->iface = ifnum;
1829 usbvision->ifaceAlt = 0;
1830 usbvision->video_endp = endpoint->bEndpointAddress;
1831 usbvision->isocPacketSize = 0;
1832 usbvision->usb_bandwidth = 0;
1833 usbvision->user = 0;
1834 usbvision->streaming = Stream_Off;
1835 usbvision_register_video(usbvision);
1836 usbvision_configure_video(usbvision);
1837 up(&usbvision->lock);
1838
1839
1840 usb_set_intfdata (intf, usbvision);
1841 usbvision_create_sysfs(usbvision->vdev);
1842
1843 PDEBUG(DBG_PROBE, "success");
1844 return 0;
1845 }
1846
1847
1848 /*
1849 * usbvision_disconnect()
1850 *
1851 * This procedure stops all driver activity, deallocates interface-private
1852 * structure (pointed by 'ptr') and after that driver should be removable
1853 * with no ill consequences.
1854 *
1855 */
1856 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1857 {
1858 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1859
1860 PDEBUG(DBG_PROBE, "");
1861
1862 if (usbvision == NULL) {
1863 err("%s: usb_get_intfdata() failed", __FUNCTION__);
1864 return;
1865 }
1866 usb_set_intfdata (intf, NULL);
1867
1868 down(&usbvision->lock);
1869
1870 // At this time we ask to cancel outstanding URBs
1871 usbvision_stop_isoc(usbvision);
1872
1873 if (usbvision->power) {
1874 usbvision_i2c_unregister(usbvision);
1875 usbvision_power_off(usbvision);
1876 }
1877 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1878
1879 usb_put_dev(usbvision->dev);
1880 usbvision->dev = NULL; // USB device is no more
1881
1882 up(&usbvision->lock);
1883
1884 if (usbvision->user) {
1885 printk(KERN_INFO "%s: In use, disconnect pending\n",
1886 __FUNCTION__);
1887 wake_up_interruptible(&usbvision->wait_frame);
1888 wake_up_interruptible(&usbvision->wait_stream);
1889 } else {
1890 usbvision_release(usbvision);
1891 }
1892
1893 PDEBUG(DBG_PROBE, "success");
1894
1895 }
1896
1897 static struct usb_driver usbvision_driver = {
1898 .name = "usbvision",
1899 .id_table = usbvision_table,
1900 .probe = usbvision_probe,
1901 .disconnect = usbvision_disconnect
1902 };
1903
1904 /*
1905 * usbvision_init()
1906 *
1907 * This code is run to initialize the driver.
1908 *
1909 */
1910 static int __init usbvision_init(void)
1911 {
1912 int errCode;
1913
1914 PDEBUG(DBG_PROBE, "");
1915
1916 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1917 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
1918 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
1919
1920 /* disable planar mode support unless compression enabled */
1921 if (isocMode != ISOC_MODE_COMPRESS ) {
1922 // FIXME : not the right way to set supported flag
1923 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1924 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1925 }
1926
1927 errCode = usb_register(&usbvision_driver);
1928
1929 if (errCode == 0) {
1930 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1931 PDEBUG(DBG_PROBE, "success");
1932 }
1933 return errCode;
1934 }
1935
1936 static void __exit usbvision_exit(void)
1937 {
1938 PDEBUG(DBG_PROBE, "");
1939
1940 usb_deregister(&usbvision_driver);
1941 PDEBUG(DBG_PROBE, "success");
1942 }
1943
1944 module_init(usbvision_init);
1945 module_exit(usbvision_exit);
1946
1947 /*
1948 * Overrides for Emacs so that we follow Linus's tabbing style.
1949 * ---------------------------------------------------------------------------
1950 * Local variables:
1951 * c-basic-offset: 8
1952 * End:
1953 */
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