?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
V4L/DVB (8482): videodev: move all ioctl callbacks to a new v4l2_ioctl_ops struct
[firewire-audio.git] / drivers / media / video / usbvision / usbvision-video.c
blob7eccdc1ea2d7a4e50b11fcc514c78f2c4bbea45c
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/v4l2-ioctl.h>
69 #include <media/tuner.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, __func__, __LINE__ , ## args); \
103 }
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;
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 initialization 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;
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 #define YES_NO(x) ((x) ? "Yes" : "No")
183
184 static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
185 {
186 struct video_device *vdev =
187 container_of(cd, struct video_device, dev);
188 return video_get_drvdata(vdev);
189 }
190
191 static ssize_t show_version(struct device *cd,
192 struct device_attribute *attr, char *buf)
193 {
194 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
195 }
196 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
197
198 static ssize_t show_model(struct device *cd,
199 struct device_attribute *attr, char *buf)
200 {
201 struct video_device *vdev =
202 container_of(cd, struct video_device, dev);
203 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
204 return sprintf(buf, "%s\n",
205 usbvision_device_data[usbvision->DevModel].ModelString);
206 }
207 static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
208
209 static ssize_t show_hue(struct device *cd,
210 struct device_attribute *attr, char *buf)
211 {
212 struct video_device *vdev =
213 container_of(cd, struct video_device, dev);
214 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
215 struct v4l2_control ctrl;
216 ctrl.id = V4L2_CID_HUE;
217 ctrl.value = 0;
218 if(usbvision->user)
219 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
220 return sprintf(buf, "%d\n", ctrl.value);
221 }
222 static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
223
224 static ssize_t show_contrast(struct device *cd,
225 struct device_attribute *attr, char *buf)
226 {
227 struct video_device *vdev =
228 container_of(cd, struct video_device, dev);
229 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
230 struct v4l2_control ctrl;
231 ctrl.id = V4L2_CID_CONTRAST;
232 ctrl.value = 0;
233 if(usbvision->user)
234 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
235 return sprintf(buf, "%d\n", ctrl.value);
236 }
237 static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
238
239 static ssize_t show_brightness(struct device *cd,
240 struct device_attribute *attr, char *buf)
241 {
242 struct video_device *vdev =
243 container_of(cd, struct video_device, dev);
244 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
245 struct v4l2_control ctrl;
246 ctrl.id = V4L2_CID_BRIGHTNESS;
247 ctrl.value = 0;
248 if(usbvision->user)
249 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
250 return sprintf(buf, "%d\n", ctrl.value);
251 }
252 static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
253
254 static ssize_t show_saturation(struct device *cd,
255 struct device_attribute *attr, char *buf)
256 {
257 struct video_device *vdev =
258 container_of(cd, struct video_device, dev);
259 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
260 struct v4l2_control ctrl;
261 ctrl.id = V4L2_CID_SATURATION;
262 ctrl.value = 0;
263 if(usbvision->user)
264 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
265 return sprintf(buf, "%d\n", ctrl.value);
266 }
267 static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
268
269 static ssize_t show_streaming(struct device *cd,
270 struct device_attribute *attr, char *buf)
271 {
272 struct video_device *vdev =
273 container_of(cd, struct video_device, dev);
274 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
275 return sprintf(buf, "%s\n",
276 YES_NO(usbvision->streaming==Stream_On?1:0));
277 }
278 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
279
280 static ssize_t show_compression(struct device *cd,
281 struct device_attribute *attr, char *buf)
282 {
283 struct video_device *vdev =
284 container_of(cd, struct video_device, dev);
285 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
286 return sprintf(buf, "%s\n",
287 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
288 }
289 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
290
291 static ssize_t show_device_bridge(struct device *cd,
292 struct device_attribute *attr, char *buf)
293 {
294 struct video_device *vdev =
295 container_of(cd, struct video_device, dev);
296 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
297 return sprintf(buf, "%d\n", usbvision->bridgeType);
298 }
299 static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
300
301 static void usbvision_create_sysfs(struct video_device *vdev)
302 {
303 int res;
304 if (!vdev)
305 return;
306 do {
307 res = device_create_file(&vdev->dev, &dev_attr_version);
308 if (res<0)
309 break;
310 res = device_create_file(&vdev->dev, &dev_attr_model);
311 if (res<0)
312 break;
313 res = device_create_file(&vdev->dev, &dev_attr_hue);
314 if (res<0)
315 break;
316 res = device_create_file(&vdev->dev, &dev_attr_contrast);
317 if (res<0)
318 break;
319 res = device_create_file(&vdev->dev, &dev_attr_brightness);
320 if (res<0)
321 break;
322 res = device_create_file(&vdev->dev, &dev_attr_saturation);
323 if (res<0)
324 break;
325 res = device_create_file(&vdev->dev, &dev_attr_streaming);
326 if (res<0)
327 break;
328 res = device_create_file(&vdev->dev, &dev_attr_compression);
329 if (res<0)
330 break;
331 res = device_create_file(&vdev->dev, &dev_attr_bridge);
332 if (res>=0)
333 return;
334 } while (0);
335
336 err("%s error: %d\n", __func__, res);
337 }
338
339 static void usbvision_remove_sysfs(struct video_device *vdev)
340 {
341 if (vdev) {
342 device_remove_file(&vdev->dev, &dev_attr_version);
343 device_remove_file(&vdev->dev, &dev_attr_model);
344 device_remove_file(&vdev->dev, &dev_attr_hue);
345 device_remove_file(&vdev->dev, &dev_attr_contrast);
346 device_remove_file(&vdev->dev, &dev_attr_brightness);
347 device_remove_file(&vdev->dev, &dev_attr_saturation);
348 device_remove_file(&vdev->dev, &dev_attr_streaming);
349 device_remove_file(&vdev->dev, &dev_attr_compression);
350 device_remove_file(&vdev->dev, &dev_attr_bridge);
351 }
352 }
353
354 /*
355 * usbvision_open()
356 *
357 * This is part of Video 4 Linux API. The driver can be opened by one
358 * client only (checks internal counter 'usbvision->user'). The procedure
359 * then allocates buffers needed for video processing.
360 *
361 */
362 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
363 {
364 struct video_device *dev = video_devdata(file);
365 struct usb_usbvision *usbvision =
366 (struct usb_usbvision *) video_get_drvdata(dev);
367 int errCode = 0;
368
369 PDEBUG(DBG_IO, "open");
370
371 usbvision_reset_powerOffTimer(usbvision);
372
373 if (usbvision->user)
374 errCode = -EBUSY;
375 else {
376 /* Allocate memory for the scratch ring buffer */
377 errCode = usbvision_scratch_alloc(usbvision);
378 if (isocMode==ISOC_MODE_COMPRESS) {
379 /* Allocate intermediate decompression buffers
380 only if needed */
381 errCode = usbvision_decompress_alloc(usbvision);
382 }
383 if (errCode) {
384 /* Deallocate all buffers if trouble */
385 usbvision_scratch_free(usbvision);
386 usbvision_decompress_free(usbvision);
387 }
388 }
389
390 /* If so far no errors then we shall start the camera */
391 if (!errCode) {
392 mutex_lock(&usbvision->lock);
393 if (usbvision->power == 0) {
394 usbvision_power_on(usbvision);
395 usbvision_i2c_register(usbvision);
396 }
397
398 /* Send init sequence only once, it's large! */
399 if (!usbvision->initialized) {
400 int setup_ok = 0;
401 setup_ok = usbvision_setup(usbvision,isocMode);
402 if (setup_ok)
403 usbvision->initialized = 1;
404 else
405 errCode = -EBUSY;
406 }
407
408 if (!errCode) {
409 usbvision_begin_streaming(usbvision);
410 errCode = usbvision_init_isoc(usbvision);
411 /* device must be initialized before isoc transfer */
412 usbvision_muxsel(usbvision,0);
413 usbvision->user++;
414 } else {
415 if (PowerOnAtOpen) {
416 usbvision_i2c_unregister(usbvision);
417 usbvision_power_off(usbvision);
418 usbvision->initialized = 0;
419 }
420 }
421 mutex_unlock(&usbvision->lock);
422 }
423
424 /* prepare queues */
425 usbvision_empty_framequeues(usbvision);
426
427 PDEBUG(DBG_IO, "success");
428 return errCode;
429 }
430
431 /*
432 * usbvision_v4l2_close()
433 *
434 * This is part of Video 4 Linux API. The procedure
435 * stops streaming and deallocates all buffers that were earlier
436 * allocated in usbvision_v4l2_open().
437 *
438 */
439 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
440 {
441 struct video_device *dev = video_devdata(file);
442 struct usb_usbvision *usbvision =
443 (struct usb_usbvision *) video_get_drvdata(dev);
444
445 PDEBUG(DBG_IO, "close");
446 mutex_lock(&usbvision->lock);
447
448 usbvision_audio_off(usbvision);
449 usbvision_restart_isoc(usbvision);
450 usbvision_stop_isoc(usbvision);
451
452 usbvision_decompress_free(usbvision);
453 usbvision_frames_free(usbvision);
454 usbvision_empty_framequeues(usbvision);
455 usbvision_scratch_free(usbvision);
456
457 usbvision->user--;
458
459 if (PowerOnAtOpen) {
460 /* power off in a little while
461 to avoid off/on every close/open short sequences */
462 usbvision_set_powerOffTimer(usbvision);
463 usbvision->initialized = 0;
464 }
465
466 mutex_unlock(&usbvision->lock);
467
468 if (usbvision->remove_pending) {
469 printk(KERN_INFO "%s: Final disconnect\n", __func__);
470 usbvision_release(usbvision);
471 }
472
473 PDEBUG(DBG_IO, "success");
474 return 0;
475 }
476
477
478 /*
479 * usbvision_ioctl()
480 *
481 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
482 *
483 */
484 #ifdef CONFIG_VIDEO_ADV_DEBUG
485 static int vidioc_g_register (struct file *file, void *priv,
486 struct v4l2_register *reg)
487 {
488 struct video_device *dev = video_devdata(file);
489 struct usb_usbvision *usbvision =
490 (struct usb_usbvision *) video_get_drvdata(dev);
491 int errCode;
492
493 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
494 return -EINVAL;
495 /* NT100x has a 8-bit register space */
496 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
497 if (errCode < 0) {
498 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
499 __func__, errCode);
500 return errCode;
501 }
502 reg->val = errCode;
503 return 0;
504 }
505
506 static int vidioc_s_register (struct file *file, void *priv,
507 struct v4l2_register *reg)
508 {
509 struct video_device *dev = video_devdata(file);
510 struct usb_usbvision *usbvision =
511 (struct usb_usbvision *) video_get_drvdata(dev);
512 int errCode;
513
514 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
515 return -EINVAL;
516 /* NT100x has a 8-bit register space */
517 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
518 if (errCode < 0) {
519 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
520 __func__, errCode);
521 return errCode;
522 }
523 return 0;
524 }
525 #endif
526
527 static int vidioc_querycap (struct file *file, void *priv,
528 struct v4l2_capability *vc)
529 {
530 struct video_device *dev = video_devdata(file);
531 struct usb_usbvision *usbvision =
532 (struct usb_usbvision *) video_get_drvdata(dev);
533
534 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
535 strlcpy(vc->card,
536 usbvision_device_data[usbvision->DevModel].ModelString,
537 sizeof(vc->card));
538 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
539 sizeof(vc->bus_info));
540 vc->version = USBVISION_DRIVER_VERSION;
541 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
542 V4L2_CAP_AUDIO |
543 V4L2_CAP_READWRITE |
544 V4L2_CAP_STREAMING |
545 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
546 return 0;
547 }
548
549 static int vidioc_enum_input (struct file *file, void *priv,
550 struct v4l2_input *vi)
551 {
552 struct video_device *dev = video_devdata(file);
553 struct usb_usbvision *usbvision =
554 (struct usb_usbvision *) video_get_drvdata(dev);
555 int chan;
556
557 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
558 return -EINVAL;
559 if (usbvision->have_tuner) {
560 chan = vi->index;
561 } else {
562 chan = vi->index + 1; /*skip Television string*/
563 }
564 /* Determine the requested input characteristics
565 specific for each usbvision card model */
566 switch(chan) {
567 case 0:
568 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
569 strcpy(vi->name, "White Video Input");
570 } else {
571 strcpy(vi->name, "Television");
572 vi->type = V4L2_INPUT_TYPE_TUNER;
573 vi->audioset = 1;
574 vi->tuner = chan;
575 vi->std = USBVISION_NORMS;
576 }
577 break;
578 case 1:
579 vi->type = V4L2_INPUT_TYPE_CAMERA;
580 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
581 strcpy(vi->name, "Green Video Input");
582 } else {
583 strcpy(vi->name, "Composite Video Input");
584 }
585 vi->std = V4L2_STD_PAL;
586 break;
587 case 2:
588 vi->type = V4L2_INPUT_TYPE_CAMERA;
589 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
590 strcpy(vi->name, "Yellow Video Input");
591 } else {
592 strcpy(vi->name, "S-Video Input");
593 }
594 vi->std = V4L2_STD_PAL;
595 break;
596 case 3:
597 vi->type = V4L2_INPUT_TYPE_CAMERA;
598 strcpy(vi->name, "Red Video Input");
599 vi->std = V4L2_STD_PAL;
600 break;
601 }
602 return 0;
603 }
604
605 static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
606 {
607 struct video_device *dev = video_devdata(file);
608 struct usb_usbvision *usbvision =
609 (struct usb_usbvision *) video_get_drvdata(dev);
610
611 *input = usbvision->ctl_input;
612 return 0;
613 }
614
615 static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
616 {
617 struct video_device *dev = video_devdata(file);
618 struct usb_usbvision *usbvision =
619 (struct usb_usbvision *) video_get_drvdata(dev);
620
621 if ((input >= usbvision->video_inputs) || (input < 0) )
622 return -EINVAL;
623
624 mutex_lock(&usbvision->lock);
625 usbvision_muxsel(usbvision, input);
626 usbvision_set_input(usbvision);
627 usbvision_set_output(usbvision,
628 usbvision->curwidth,
629 usbvision->curheight);
630 mutex_unlock(&usbvision->lock);
631 return 0;
632 }
633
634 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
635 {
636 struct video_device *dev = video_devdata(file);
637 struct usb_usbvision *usbvision =
638 (struct usb_usbvision *) video_get_drvdata(dev);
639 usbvision->tvnormId=*id;
640
641 mutex_lock(&usbvision->lock);
642 call_i2c_clients(usbvision, VIDIOC_S_STD,
643 &usbvision->tvnormId);
644 mutex_unlock(&usbvision->lock);
645 /* propagate the change to the decoder */
646 usbvision_muxsel(usbvision, usbvision->ctl_input);
647
648 return 0;
649 }
650
651 static int vidioc_g_tuner (struct file *file, void *priv,
652 struct v4l2_tuner *vt)
653 {
654 struct video_device *dev = video_devdata(file);
655 struct usb_usbvision *usbvision =
656 (struct usb_usbvision *) video_get_drvdata(dev);
657
658 if (!usbvision->have_tuner || vt->index) // Only tuner 0
659 return -EINVAL;
660 if(usbvision->radio) {
661 strcpy(vt->name, "Radio");
662 vt->type = V4L2_TUNER_RADIO;
663 } else {
664 strcpy(vt->name, "Television");
665 }
666 /* Let clients fill in the remainder of this struct */
667 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
668
669 return 0;
670 }
671
672 static int vidioc_s_tuner (struct file *file, void *priv,
673 struct v4l2_tuner *vt)
674 {
675 struct video_device *dev = video_devdata(file);
676 struct usb_usbvision *usbvision =
677 (struct usb_usbvision *) video_get_drvdata(dev);
678
679 // Only no or one tuner for now
680 if (!usbvision->have_tuner || vt->index)
681 return -EINVAL;
682 /* let clients handle this */
683 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
684
685 return 0;
686 }
687
688 static int vidioc_g_frequency (struct file *file, void *priv,
689 struct v4l2_frequency *freq)
690 {
691 struct video_device *dev = video_devdata(file);
692 struct usb_usbvision *usbvision =
693 (struct usb_usbvision *) video_get_drvdata(dev);
694
695 freq->tuner = 0; // Only one tuner
696 if(usbvision->radio) {
697 freq->type = V4L2_TUNER_RADIO;
698 } else {
699 freq->type = V4L2_TUNER_ANALOG_TV;
700 }
701 freq->frequency = usbvision->freq;
702
703 return 0;
704 }
705
706 static int vidioc_s_frequency (struct file *file, void *priv,
707 struct v4l2_frequency *freq)
708 {
709 struct video_device *dev = video_devdata(file);
710 struct usb_usbvision *usbvision =
711 (struct usb_usbvision *) video_get_drvdata(dev);
712
713 // Only no or one tuner for now
714 if (!usbvision->have_tuner || freq->tuner)
715 return -EINVAL;
716
717 usbvision->freq = freq->frequency;
718 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
719
720 return 0;
721 }
722
723 static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
724 {
725 struct video_device *dev = video_devdata(file);
726 struct usb_usbvision *usbvision =
727 (struct usb_usbvision *) video_get_drvdata(dev);
728
729 memset(a,0,sizeof(*a));
730 if(usbvision->radio) {
731 strcpy(a->name,"Radio");
732 } else {
733 strcpy(a->name, "TV");
734 }
735
736 return 0;
737 }
738
739 static int vidioc_s_audio (struct file *file, void *fh,
740 struct v4l2_audio *a)
741 {
742 if(a->index) {
743 return -EINVAL;
744 }
745
746 return 0;
747 }
748
749 static int vidioc_queryctrl (struct file *file, void *priv,
750 struct v4l2_queryctrl *ctrl)
751 {
752 struct video_device *dev = video_devdata(file);
753 struct usb_usbvision *usbvision =
754 (struct usb_usbvision *) video_get_drvdata(dev);
755 int id=ctrl->id;
756
757 memset(ctrl,0,sizeof(*ctrl));
758 ctrl->id=id;
759
760 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
761
762 if (!ctrl->type)
763 return -EINVAL;
764
765 return 0;
766 }
767
768 static int vidioc_g_ctrl (struct file *file, void *priv,
769 struct v4l2_control *ctrl)
770 {
771 struct video_device *dev = video_devdata(file);
772 struct usb_usbvision *usbvision =
773 (struct usb_usbvision *) video_get_drvdata(dev);
774 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
775
776 return 0;
777 }
778
779 static int vidioc_s_ctrl (struct file *file, void *priv,
780 struct v4l2_control *ctrl)
781 {
782 struct video_device *dev = video_devdata(file);
783 struct usb_usbvision *usbvision =
784 (struct usb_usbvision *) video_get_drvdata(dev);
785 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
786
787 return 0;
788 }
789
790 static int vidioc_reqbufs (struct file *file,
791 void *priv, struct v4l2_requestbuffers *vr)
792 {
793 struct video_device *dev = video_devdata(file);
794 struct usb_usbvision *usbvision =
795 (struct usb_usbvision *) video_get_drvdata(dev);
796 int ret;
797
798 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
799
800 /* Check input validity:
801 the user must do a VIDEO CAPTURE and MMAP method. */
802 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
803 (vr->memory != V4L2_MEMORY_MMAP))
804 return -EINVAL;
805
806 if(usbvision->streaming == Stream_On) {
807 if ((ret = usbvision_stream_interrupt(usbvision)))
808 return ret;
809 }
810
811 usbvision_frames_free(usbvision);
812 usbvision_empty_framequeues(usbvision);
813 vr->count = usbvision_frames_alloc(usbvision,vr->count);
814
815 usbvision->curFrame = NULL;
816
817 return 0;
818 }
819
820 static int vidioc_querybuf (struct file *file,
821 void *priv, struct v4l2_buffer *vb)
822 {
823 struct video_device *dev = video_devdata(file);
824 struct usb_usbvision *usbvision =
825 (struct usb_usbvision *) video_get_drvdata(dev);
826 struct usbvision_frame *frame;
827
828 /* FIXME : must control
829 that buffers are mapped (VIDIOC_REQBUFS has been called) */
830 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
831 return -EINVAL;
832 }
833 if(vb->index>=usbvision->num_frames) {
834 return -EINVAL;
835 }
836 /* Updating the corresponding frame state */
837 vb->flags = 0;
838 frame = &usbvision->frame[vb->index];
839 if(frame->grabstate >= FrameState_Ready)
840 vb->flags |= V4L2_BUF_FLAG_QUEUED;
841 if(frame->grabstate >= FrameState_Done)
842 vb->flags |= V4L2_BUF_FLAG_DONE;
843 if(frame->grabstate == FrameState_Unused)
844 vb->flags |= V4L2_BUF_FLAG_MAPPED;
845 vb->memory = V4L2_MEMORY_MMAP;
846
847 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
848
849 vb->memory = V4L2_MEMORY_MMAP;
850 vb->field = V4L2_FIELD_NONE;
851 vb->length = usbvision->curwidth*
852 usbvision->curheight*
853 usbvision->palette.bytes_per_pixel;
854 vb->timestamp = usbvision->frame[vb->index].timestamp;
855 vb->sequence = usbvision->frame[vb->index].sequence;
856 return 0;
857 }
858
859 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
860 {
861 struct video_device *dev = video_devdata(file);
862 struct usb_usbvision *usbvision =
863 (struct usb_usbvision *) video_get_drvdata(dev);
864 struct usbvision_frame *frame;
865 unsigned long lock_flags;
866
867 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
868 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
869 return -EINVAL;
870 }
871 if(vb->index>=usbvision->num_frames) {
872 return -EINVAL;
873 }
874
875 frame = &usbvision->frame[vb->index];
876
877 if (frame->grabstate != FrameState_Unused) {
878 return -EAGAIN;
879 }
880
881 /* Mark it as ready and enqueue frame */
882 frame->grabstate = FrameState_Ready;
883 frame->scanstate = ScanState_Scanning;
884 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
885
886 vb->flags &= ~V4L2_BUF_FLAG_DONE;
887
888 /* set v4l2_format index */
889 frame->v4l2_format = usbvision->palette;
890
891 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
892 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
893 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
894
895 return 0;
896 }
897
898 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
899 {
900 struct video_device *dev = video_devdata(file);
901 struct usb_usbvision *usbvision =
902 (struct usb_usbvision *) video_get_drvdata(dev);
903 int ret;
904 struct usbvision_frame *f;
905 unsigned long lock_flags;
906
907 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
908 return -EINVAL;
909
910 if (list_empty(&(usbvision->outqueue))) {
911 if (usbvision->streaming == Stream_Idle)
912 return -EINVAL;
913 ret = wait_event_interruptible
914 (usbvision->wait_frame,
915 !list_empty(&(usbvision->outqueue)));
916 if (ret)
917 return ret;
918 }
919
920 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
921 f = list_entry(usbvision->outqueue.next,
922 struct usbvision_frame, frame);
923 list_del(usbvision->outqueue.next);
924 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
925
926 f->grabstate = FrameState_Unused;
927
928 vb->memory = V4L2_MEMORY_MMAP;
929 vb->flags = V4L2_BUF_FLAG_MAPPED |
930 V4L2_BUF_FLAG_QUEUED |
931 V4L2_BUF_FLAG_DONE;
932 vb->index = f->index;
933 vb->sequence = f->sequence;
934 vb->timestamp = f->timestamp;
935 vb->field = V4L2_FIELD_NONE;
936 vb->bytesused = f->scanlength;
937
938 return 0;
939 }
940
941 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
942 {
943 struct video_device *dev = video_devdata(file);
944 struct usb_usbvision *usbvision =
945 (struct usb_usbvision *) video_get_drvdata(dev);
946 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
947
948 usbvision->streaming = Stream_On;
949 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
950
951 return 0;
952 }
953
954 static int vidioc_streamoff(struct file *file,
955 void *priv, enum v4l2_buf_type type)
956 {
957 struct video_device *dev = video_devdata(file);
958 struct usb_usbvision *usbvision =
959 (struct usb_usbvision *) video_get_drvdata(dev);
960 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
961
962 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
963 return -EINVAL;
964
965 if(usbvision->streaming == Stream_On) {
966 usbvision_stream_interrupt(usbvision);
967 /* Stop all video streamings */
968 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
969 }
970 usbvision_empty_framequeues(usbvision);
971
972 return 0;
973 }
974
975 static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
976 struct v4l2_fmtdesc *vfd)
977 {
978 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
979 return -EINVAL;
980 }
981 vfd->flags = 0;
982 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
983 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
984 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
985 memset(vfd->reserved, 0, sizeof(vfd->reserved));
986 return 0;
987 }
988
989 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
990 struct v4l2_format *vf)
991 {
992 struct video_device *dev = video_devdata(file);
993 struct usb_usbvision *usbvision =
994 (struct usb_usbvision *) video_get_drvdata(dev);
995 vf->fmt.pix.width = usbvision->curwidth;
996 vf->fmt.pix.height = usbvision->curheight;
997 vf->fmt.pix.pixelformat = usbvision->palette.format;
998 vf->fmt.pix.bytesperline =
999 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
1000 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
1001 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1002 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
1003
1004 return 0;
1005 }
1006
1007 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
1008 struct v4l2_format *vf)
1009 {
1010 struct video_device *dev = video_devdata(file);
1011 struct usb_usbvision *usbvision =
1012 (struct usb_usbvision *) video_get_drvdata(dev);
1013 int formatIdx;
1014
1015 /* Find requested format in available ones */
1016 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1017 if(vf->fmt.pix.pixelformat ==
1018 usbvision_v4l2_format[formatIdx].format) {
1019 usbvision->palette = usbvision_v4l2_format[formatIdx];
1020 break;
1021 }
1022 }
1023 /* robustness */
1024 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1025 return -EINVAL;
1026 }
1027 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1028 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1029
1030 vf->fmt.pix.bytesperline = vf->fmt.pix.width*
1031 usbvision->palette.bytes_per_pixel;
1032 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1033
1034 return 0;
1035 }
1036
1037 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1038 struct v4l2_format *vf)
1039 {
1040 struct video_device *dev = video_devdata(file);
1041 struct usb_usbvision *usbvision =
1042 (struct usb_usbvision *) video_get_drvdata(dev);
1043 int ret;
1044
1045 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
1046 return ret;
1047 }
1048
1049 /* stop io in case it is already in progress */
1050 if(usbvision->streaming == Stream_On) {
1051 if ((ret = usbvision_stream_interrupt(usbvision)))
1052 return ret;
1053 }
1054 usbvision_frames_free(usbvision);
1055 usbvision_empty_framequeues(usbvision);
1056
1057 usbvision->curFrame = NULL;
1058
1059 /* by now we are committed to the new data... */
1060 mutex_lock(&usbvision->lock);
1061 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1062 mutex_unlock(&usbvision->lock);
1063
1064 return 0;
1065 }
1066
1067 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1068 size_t count, loff_t *ppos)
1069 {
1070 struct video_device *dev = video_devdata(file);
1071 struct usb_usbvision *usbvision =
1072 (struct usb_usbvision *) video_get_drvdata(dev);
1073 int noblock = file->f_flags & O_NONBLOCK;
1074 unsigned long lock_flags;
1075
1076 int ret,i;
1077 struct usbvision_frame *frame;
1078
1079 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
1080 (unsigned long)count, noblock);
1081
1082 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1083 return -EFAULT;
1084
1085 /* This entry point is compatible with the mmap routines
1086 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1087 to get frames or call read on the device. */
1088 if(!usbvision->num_frames) {
1089 /* First, allocate some frames to work with
1090 if this has not been done with VIDIOC_REQBUF */
1091 usbvision_frames_free(usbvision);
1092 usbvision_empty_framequeues(usbvision);
1093 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1094 }
1095
1096 if(usbvision->streaming != Stream_On) {
1097 /* no stream is running, make it running ! */
1098 usbvision->streaming = Stream_On;
1099 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1100 }
1101
1102 /* Then, enqueue as many frames as possible
1103 (like a user of VIDIOC_QBUF would do) */
1104 for(i=0;i<usbvision->num_frames;i++) {
1105 frame = &usbvision->frame[i];
1106 if(frame->grabstate == FrameState_Unused) {
1107 /* Mark it as ready and enqueue frame */
1108 frame->grabstate = FrameState_Ready;
1109 frame->scanstate = ScanState_Scanning;
1110 /* Accumulated in usbvision_parse_data() */
1111 frame->scanlength = 0;
1112
1113 /* set v4l2_format index */
1114 frame->v4l2_format = usbvision->palette;
1115
1116 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1117 list_add_tail(&frame->frame, &usbvision->inqueue);
1118 spin_unlock_irqrestore(&usbvision->queue_lock,
1119 lock_flags);
1120 }
1121 }
1122
1123 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1124 if (list_empty(&(usbvision->outqueue))) {
1125 if(noblock)
1126 return -EAGAIN;
1127
1128 ret = wait_event_interruptible
1129 (usbvision->wait_frame,
1130 !list_empty(&(usbvision->outqueue)));
1131 if (ret)
1132 return ret;
1133 }
1134
1135 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1136 frame = list_entry(usbvision->outqueue.next,
1137 struct usbvision_frame, frame);
1138 list_del(usbvision->outqueue.next);
1139 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1140
1141 /* An error returns an empty frame */
1142 if (frame->grabstate == FrameState_Error) {
1143 frame->bytes_read = 0;
1144 return 0;
1145 }
1146
1147 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1148 __func__,
1149 frame->index, frame->bytes_read, frame->scanlength);
1150
1151 /* copy bytes to user space; we allow for partials reads */
1152 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1153 count = frame->scanlength - frame->bytes_read;
1154
1155 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1156 return -EFAULT;
1157 }
1158
1159 frame->bytes_read += count;
1160 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1161 __func__,
1162 (unsigned long)count, frame->bytes_read);
1163
1164 /* For now, forget the frame if it has not been read in one shot. */
1165 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1166 frame->bytes_read = 0;
1167
1168 /* Mark it as available to be used again. */
1169 frame->grabstate = FrameState_Unused;
1170 /* } */
1171
1172 return count;
1173 }
1174
1175 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1176 {
1177 unsigned long size = vma->vm_end - vma->vm_start,
1178 start = vma->vm_start;
1179 void *pos;
1180 u32 i;
1181
1182 struct video_device *dev = video_devdata(file);
1183 struct usb_usbvision *usbvision =
1184 (struct usb_usbvision *) video_get_drvdata(dev);
1185
1186 PDEBUG(DBG_MMAP, "mmap");
1187
1188 mutex_lock(&usbvision->lock);
1189
1190 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1191 mutex_unlock(&usbvision->lock);
1192 return -EFAULT;
1193 }
1194
1195 if (!(vma->vm_flags & VM_WRITE) ||
1196 size != PAGE_ALIGN(usbvision->max_frame_size)) {
1197 mutex_unlock(&usbvision->lock);
1198 return -EINVAL;
1199 }
1200
1201 for (i = 0; i < usbvision->num_frames; i++) {
1202 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1203 vma->vm_pgoff)
1204 break;
1205 }
1206 if (i == usbvision->num_frames) {
1207 PDEBUG(DBG_MMAP,
1208 "mmap: user supplied mapping address is out of range");
1209 mutex_unlock(&usbvision->lock);
1210 return -EINVAL;
1211 }
1212
1213 /* VM_IO is eventually going to replace PageReserved altogether */
1214 vma->vm_flags |= VM_IO;
1215 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1216
1217 pos = usbvision->frame[i].data;
1218 while (size > 0) {
1219
1220 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1221 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1222 mutex_unlock(&usbvision->lock);
1223 return -EAGAIN;
1224 }
1225 start += PAGE_SIZE;
1226 pos += PAGE_SIZE;
1227 size -= PAGE_SIZE;
1228 }
1229
1230 mutex_unlock(&usbvision->lock);
1231 return 0;
1232 }
1233
1234
1235 /*
1236 * Here comes the stuff for radio on usbvision based devices
1237 *
1238 */
1239 static int usbvision_radio_open(struct inode *inode, struct file *file)
1240 {
1241 struct video_device *dev = video_devdata(file);
1242 struct usb_usbvision *usbvision =
1243 (struct usb_usbvision *) video_get_drvdata(dev);
1244 int errCode = 0;
1245
1246 PDEBUG(DBG_IO, "%s:", __func__);
1247
1248 mutex_lock(&usbvision->lock);
1249
1250 if (usbvision->user) {
1251 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
1252 errCode = -EBUSY;
1253 }
1254 else {
1255 if(PowerOnAtOpen) {
1256 usbvision_reset_powerOffTimer(usbvision);
1257 if (usbvision->power == 0) {
1258 usbvision_power_on(usbvision);
1259 usbvision_i2c_register(usbvision);
1260 }
1261 }
1262
1263 /* Alternate interface 1 is is the biggest frame size */
1264 errCode = usbvision_set_alternate(usbvision);
1265 if (errCode < 0) {
1266 usbvision->last_error = errCode;
1267 errCode = -EBUSY;
1268 goto out;
1269 }
1270
1271 // If so far no errors then we shall start the radio
1272 usbvision->radio = 1;
1273 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1274 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1275 usbvision->user++;
1276 }
1277
1278 if (errCode) {
1279 if (PowerOnAtOpen) {
1280 usbvision_i2c_unregister(usbvision);
1281 usbvision_power_off(usbvision);
1282 usbvision->initialized = 0;
1283 }
1284 }
1285 out:
1286 mutex_unlock(&usbvision->lock);
1287 return errCode;
1288 }
1289
1290
1291 static int usbvision_radio_close(struct inode *inode, struct file *file)
1292 {
1293 struct video_device *dev = video_devdata(file);
1294 struct usb_usbvision *usbvision =
1295 (struct usb_usbvision *) video_get_drvdata(dev);
1296 int errCode = 0;
1297
1298 PDEBUG(DBG_IO, "");
1299
1300 mutex_lock(&usbvision->lock);
1301
1302 /* Set packet size to 0 */
1303 usbvision->ifaceAlt=0;
1304 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1305 usbvision->ifaceAlt);
1306
1307 usbvision_audio_off(usbvision);
1308 usbvision->radio=0;
1309 usbvision->user--;
1310
1311 if (PowerOnAtOpen) {
1312 usbvision_set_powerOffTimer(usbvision);
1313 usbvision->initialized = 0;
1314 }
1315
1316 mutex_unlock(&usbvision->lock);
1317
1318 if (usbvision->remove_pending) {
1319 printk(KERN_INFO "%s: Final disconnect\n", __func__);
1320 usbvision_release(usbvision);
1321 }
1322
1323 PDEBUG(DBG_IO, "success");
1324 return errCode;
1325 }
1326
1327 /*
1328 * Here comes the stuff for vbi on usbvision based devices
1329 *
1330 */
1331 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1332 {
1333 /* TODO */
1334 return -ENODEV;
1335 }
1336
1337 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1338 {
1339 /* TODO */
1340 return -ENODEV;
1341 }
1342
1343 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1344 unsigned int cmd, void *arg)
1345 {
1346 /* TODO */
1347 return -ENOIOCTLCMD;
1348 }
1349
1350 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1351 unsigned int cmd, unsigned long arg)
1352 {
1353 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1354 }
1355
1356
1357 //
1358 // Video registration stuff
1359 //
1360
1361 // Video template
1362 static const struct file_operations usbvision_fops = {
1363 .owner = THIS_MODULE,
1364 .open = usbvision_v4l2_open,
1365 .release = usbvision_v4l2_close,
1366 .read = usbvision_v4l2_read,
1367 .mmap = usbvision_v4l2_mmap,
1368 .ioctl = video_ioctl2,
1369 .llseek = no_llseek,
1370 /* .poll = video_poll, */
1371 .compat_ioctl = v4l_compat_ioctl32,
1372 };
1373
1374 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
1375 .vidioc_querycap = vidioc_querycap,
1376 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1377 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1378 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1379 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1380 .vidioc_reqbufs = vidioc_reqbufs,
1381 .vidioc_querybuf = vidioc_querybuf,
1382 .vidioc_qbuf = vidioc_qbuf,
1383 .vidioc_dqbuf = vidioc_dqbuf,
1384 .vidioc_s_std = vidioc_s_std,
1385 .vidioc_enum_input = vidioc_enum_input,
1386 .vidioc_g_input = vidioc_g_input,
1387 .vidioc_s_input = vidioc_s_input,
1388 .vidioc_queryctrl = vidioc_queryctrl,
1389 .vidioc_g_audio = vidioc_g_audio,
1390 .vidioc_s_audio = vidioc_s_audio,
1391 .vidioc_g_ctrl = vidioc_g_ctrl,
1392 .vidioc_s_ctrl = vidioc_s_ctrl,
1393 .vidioc_streamon = vidioc_streamon,
1394 .vidioc_streamoff = vidioc_streamoff,
1395 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1396 /* .vidiocgmbuf = vidiocgmbuf, */
1397 #endif
1398 .vidioc_g_tuner = vidioc_g_tuner,
1399 .vidioc_s_tuner = vidioc_s_tuner,
1400 .vidioc_g_frequency = vidioc_g_frequency,
1401 .vidioc_s_frequency = vidioc_s_frequency,
1402 #ifdef CONFIG_VIDEO_ADV_DEBUG
1403 .vidioc_g_register = vidioc_g_register,
1404 .vidioc_s_register = vidioc_s_register,
1405 #endif
1406 };
1407
1408 static struct video_device usbvision_video_template = {
1409 .owner = THIS_MODULE,
1410 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
1411 .fops = &usbvision_fops,
1412 .ioctl_ops = &usbvision_ioctl_ops,
1413 .name = "usbvision-video",
1414 .release = video_device_release,
1415 .minor = -1,
1416 .tvnorms = USBVISION_NORMS,
1417 .current_norm = V4L2_STD_PAL
1418 };
1419
1420
1421 // Radio template
1422 static const struct file_operations usbvision_radio_fops = {
1423 .owner = THIS_MODULE,
1424 .open = usbvision_radio_open,
1425 .release = usbvision_radio_close,
1426 .ioctl = video_ioctl2,
1427 .llseek = no_llseek,
1428 .compat_ioctl = v4l_compat_ioctl32,
1429 };
1430
1431 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
1432 .vidioc_querycap = vidioc_querycap,
1433 .vidioc_enum_input = vidioc_enum_input,
1434 .vidioc_g_input = vidioc_g_input,
1435 .vidioc_s_input = vidioc_s_input,
1436 .vidioc_queryctrl = vidioc_queryctrl,
1437 .vidioc_g_audio = vidioc_g_audio,
1438 .vidioc_s_audio = vidioc_s_audio,
1439 .vidioc_g_ctrl = vidioc_g_ctrl,
1440 .vidioc_s_ctrl = vidioc_s_ctrl,
1441 .vidioc_g_tuner = vidioc_g_tuner,
1442 .vidioc_s_tuner = vidioc_s_tuner,
1443 .vidioc_g_frequency = vidioc_g_frequency,
1444 .vidioc_s_frequency = vidioc_s_frequency,
1445 };
1446
1447 static struct video_device usbvision_radio_template = {
1448 .owner = THIS_MODULE,
1449 .type = VID_TYPE_TUNER,
1450 .fops = &usbvision_radio_fops,
1451 .name = "usbvision-radio",
1452 .release = video_device_release,
1453 .minor = -1,
1454 .ioctl_ops = &usbvision_radio_ioctl_ops,
1455
1456 .tvnorms = USBVISION_NORMS,
1457 .current_norm = V4L2_STD_PAL
1458 };
1459
1460 // vbi template
1461 static const struct file_operations usbvision_vbi_fops = {
1462 .owner = THIS_MODULE,
1463 .open = usbvision_vbi_open,
1464 .release = usbvision_vbi_close,
1465 .ioctl = usbvision_vbi_ioctl,
1466 .llseek = no_llseek,
1467 .compat_ioctl = v4l_compat_ioctl32,
1468 };
1469
1470 static struct video_device usbvision_vbi_template=
1471 {
1472 .owner = THIS_MODULE,
1473 .type = VID_TYPE_TUNER,
1474 .fops = &usbvision_vbi_fops,
1475 .release = video_device_release,
1476 .name = "usbvision-vbi",
1477 .minor = -1,
1478 };
1479
1480
1481 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1482 struct video_device *vdev_template,
1483 char *name)
1484 {
1485 struct usb_device *usb_dev = usbvision->dev;
1486 struct video_device *vdev;
1487
1488 if (usb_dev == NULL) {
1489 err("%s: usbvision->dev is not set", __func__);
1490 return NULL;
1491 }
1492
1493 vdev = video_device_alloc();
1494 if (NULL == vdev) {
1495 return NULL;
1496 }
1497 *vdev = *vdev_template;
1498 // vdev->minor = -1;
1499 vdev->parent = &usb_dev->dev;
1500 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1501 video_set_drvdata(vdev, usbvision);
1502 return vdev;
1503 }
1504
1505 // unregister video4linux devices
1506 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1507 {
1508 // vbi Device:
1509 if (usbvision->vbi) {
1510 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1511 usbvision->vbi->minor & 0x1f);
1512 if (usbvision->vbi->minor != -1) {
1513 video_unregister_device(usbvision->vbi);
1514 } else {
1515 video_device_release(usbvision->vbi);
1516 }
1517 usbvision->vbi = NULL;
1518 }
1519
1520 // Radio Device:
1521 if (usbvision->rdev) {
1522 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1523 usbvision->rdev->minor & 0x1f);
1524 if (usbvision->rdev->minor != -1) {
1525 video_unregister_device(usbvision->rdev);
1526 } else {
1527 video_device_release(usbvision->rdev);
1528 }
1529 usbvision->rdev = NULL;
1530 }
1531
1532 // Video Device:
1533 if (usbvision->vdev) {
1534 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1535 usbvision->vdev->minor & 0x1f);
1536 if (usbvision->vdev->minor != -1) {
1537 video_unregister_device(usbvision->vdev);
1538 } else {
1539 video_device_release(usbvision->vdev);
1540 }
1541 usbvision->vdev = NULL;
1542 }
1543 }
1544
1545 // register video4linux devices
1546 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1547 {
1548 // Video Device:
1549 usbvision->vdev = usbvision_vdev_init(usbvision,
1550 &usbvision_video_template,
1551 "USBVision Video");
1552 if (usbvision->vdev == NULL) {
1553 goto err_exit;
1554 }
1555 if (video_register_device(usbvision->vdev,
1556 VFL_TYPE_GRABBER,
1557 video_nr)<0) {
1558 goto err_exit;
1559 }
1560 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1561 usbvision->nr,usbvision->vdev->minor & 0x1f);
1562
1563 // Radio Device:
1564 if (usbvision_device_data[usbvision->DevModel].Radio) {
1565 // usbvision has radio
1566 usbvision->rdev = usbvision_vdev_init(usbvision,
1567 &usbvision_radio_template,
1568 "USBVision Radio");
1569 if (usbvision->rdev == NULL) {
1570 goto err_exit;
1571 }
1572 if (video_register_device(usbvision->rdev,
1573 VFL_TYPE_RADIO,
1574 radio_nr)<0) {
1575 goto err_exit;
1576 }
1577 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1578 usbvision->nr, usbvision->rdev->minor & 0x1f);
1579 }
1580 // vbi Device:
1581 if (usbvision_device_data[usbvision->DevModel].vbi) {
1582 usbvision->vbi = usbvision_vdev_init(usbvision,
1583 &usbvision_vbi_template,
1584 "USBVision VBI");
1585 if (usbvision->vdev == NULL) {
1586 goto err_exit;
1587 }
1588 if (video_register_device(usbvision->vbi,
1589 VFL_TYPE_VBI,
1590 vbi_nr)<0) {
1591 goto err_exit;
1592 }
1593 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1594 usbvision->nr,usbvision->vbi->minor & 0x1f);
1595 }
1596 // all done
1597 return 0;
1598
1599 err_exit:
1600 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1601 usbvision_unregister_video(usbvision);
1602 return -1;
1603 }
1604
1605 /*
1606 * usbvision_alloc()
1607 *
1608 * This code allocates the struct usb_usbvision.
1609 * It is filled with default values.
1610 *
1611 * Returns NULL on error, a pointer to usb_usbvision else.
1612 *
1613 */
1614 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1615 {
1616 struct usb_usbvision *usbvision;
1617
1618 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1619 NULL) {
1620 goto err_exit;
1621 }
1622
1623 usbvision->dev = dev;
1624
1625 mutex_init(&usbvision->lock); /* available */
1626
1627 // prepare control urb for control messages during interrupts
1628 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1629 if (usbvision->ctrlUrb == NULL) {
1630 goto err_exit;
1631 }
1632 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1633
1634 usbvision_init_powerOffTimer(usbvision);
1635
1636 return usbvision;
1637
1638 err_exit:
1639 if (usbvision && usbvision->ctrlUrb) {
1640 usb_free_urb(usbvision->ctrlUrb);
1641 }
1642 if (usbvision) {
1643 kfree(usbvision);
1644 }
1645 return NULL;
1646 }
1647
1648 /*
1649 * usbvision_release()
1650 *
1651 * This code does final release of struct usb_usbvision. This happens
1652 * after the device is disconnected -and- all clients closed their files.
1653 *
1654 */
1655 static void usbvision_release(struct usb_usbvision *usbvision)
1656 {
1657 PDEBUG(DBG_PROBE, "");
1658
1659 mutex_lock(&usbvision->lock);
1660
1661 usbvision_reset_powerOffTimer(usbvision);
1662
1663 usbvision->initialized = 0;
1664
1665 mutex_unlock(&usbvision->lock);
1666
1667 usbvision_remove_sysfs(usbvision->vdev);
1668 usbvision_unregister_video(usbvision);
1669
1670 if (usbvision->ctrlUrb) {
1671 usb_free_urb(usbvision->ctrlUrb);
1672 }
1673
1674 kfree(usbvision);
1675
1676 PDEBUG(DBG_PROBE, "success");
1677 }
1678
1679
1680 /*********************** usb interface **********************************/
1681
1682 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1683 {
1684 int model;
1685
1686 if (usbvision == NULL)
1687 return;
1688
1689 model = usbvision->DevModel;
1690 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1691
1692 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1693 usbvision->Vin_Reg2_Preset =
1694 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1695 } else {
1696 usbvision->Vin_Reg2_Preset = 0;
1697 }
1698
1699 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1700
1701 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1702 usbvision->ctl_input = 0;
1703
1704 /* This should be here to make i2c clients to be able to register */
1705 /* first switch off audio */
1706 usbvision_audio_off(usbvision);
1707 if (!PowerOnAtOpen) {
1708 /* and then power up the noisy tuner */
1709 usbvision_power_on(usbvision);
1710 usbvision_i2c_register(usbvision);
1711 }
1712 }
1713
1714 /*
1715 * usbvision_probe()
1716 *
1717 * This procedure queries device descriptor and accepts the interface
1718 * if it looks like USBVISION video device
1719 *
1720 */
1721 static int __devinit usbvision_probe(struct usb_interface *intf,
1722 const struct usb_device_id *devid)
1723 {
1724 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1725 struct usb_interface *uif;
1726 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1727 const struct usb_host_interface *interface;
1728 struct usb_usbvision *usbvision = NULL;
1729 const struct usb_endpoint_descriptor *endpoint;
1730 int model,i;
1731
1732 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1733 dev->descriptor.idVendor,
1734 dev->descriptor.idProduct, ifnum);
1735
1736 model = devid->driver_info;
1737 if ( (model<0) || (model>=usbvision_device_data_size) ) {
1738 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1739 return -ENODEV;
1740 }
1741 printk(KERN_INFO "%s: %s found\n", __func__,
1742 usbvision_device_data[model].ModelString);
1743
1744 if (usbvision_device_data[model].Interface >= 0) {
1745 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1746 } else {
1747 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1748 }
1749 endpoint = &interface->endpoint[1].desc;
1750 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1751 USB_ENDPOINT_XFER_ISOC) {
1752 err("%s: interface %d. has non-ISO endpoint!",
1753 __func__, ifnum);
1754 err("%s: Endpoint attributes %d",
1755 __func__, endpoint->bmAttributes);
1756 return -ENODEV;
1757 }
1758 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1759 USB_DIR_OUT) {
1760 err("%s: interface %d. has ISO OUT endpoint!",
1761 __func__, ifnum);
1762 return -ENODEV;
1763 }
1764
1765 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1766 err("%s: couldn't allocate USBVision struct", __func__);
1767 return -ENOMEM;
1768 }
1769
1770 if (dev->descriptor.bNumConfigurations > 1) {
1771 usbvision->bridgeType = BRIDGE_NT1004;
1772 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1773 usbvision->bridgeType = BRIDGE_NT1005;
1774 } else {
1775 usbvision->bridgeType = BRIDGE_NT1003;
1776 }
1777 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1778
1779 mutex_lock(&usbvision->lock);
1780
1781 /* compute alternate max packet sizes */
1782 uif = dev->actconfig->interface[0];
1783
1784 usbvision->num_alt=uif->num_altsetting;
1785 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1786 usbvision->alt_max_pkt_size = kmalloc(32*
1787 usbvision->num_alt,GFP_KERNEL);
1788 if (usbvision->alt_max_pkt_size == NULL) {
1789 err("usbvision: out of memory!\n");
1790 mutex_unlock(&usbvision->lock);
1791 return -ENOMEM;
1792 }
1793
1794 for (i = 0; i < usbvision->num_alt ; i++) {
1795 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1796 wMaxPacketSize);
1797 usbvision->alt_max_pkt_size[i] =
1798 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1799 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1800 usbvision->alt_max_pkt_size[i]);
1801 }
1802
1803
1804 usbvision->nr = usbvision_nr++;
1805
1806 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1807 if (usbvision->have_tuner) {
1808 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1809 }
1810
1811 usbvision->tuner_addr = ADDR_UNSET;
1812
1813 usbvision->DevModel = model;
1814 usbvision->remove_pending = 0;
1815 usbvision->iface = ifnum;
1816 usbvision->ifaceAlt = 0;
1817 usbvision->video_endp = endpoint->bEndpointAddress;
1818 usbvision->isocPacketSize = 0;
1819 usbvision->usb_bandwidth = 0;
1820 usbvision->user = 0;
1821 usbvision->streaming = Stream_Off;
1822 usbvision_register_video(usbvision);
1823 usbvision_configure_video(usbvision);
1824 mutex_unlock(&usbvision->lock);
1825
1826
1827 usb_set_intfdata (intf, usbvision);
1828 usbvision_create_sysfs(usbvision->vdev);
1829
1830 PDEBUG(DBG_PROBE, "success");
1831 return 0;
1832 }
1833
1834
1835 /*
1836 * usbvision_disconnect()
1837 *
1838 * This procedure stops all driver activity, deallocates interface-private
1839 * structure (pointed by 'ptr') and after that driver should be removable
1840 * with no ill consequences.
1841 *
1842 */
1843 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1844 {
1845 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1846
1847 PDEBUG(DBG_PROBE, "");
1848
1849 if (usbvision == NULL) {
1850 err("%s: usb_get_intfdata() failed", __func__);
1851 return;
1852 }
1853 usb_set_intfdata (intf, NULL);
1854
1855 mutex_lock(&usbvision->lock);
1856
1857 // At this time we ask to cancel outstanding URBs
1858 usbvision_stop_isoc(usbvision);
1859
1860 if (usbvision->power) {
1861 usbvision_i2c_unregister(usbvision);
1862 usbvision_power_off(usbvision);
1863 }
1864 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1865
1866 usb_put_dev(usbvision->dev);
1867 usbvision->dev = NULL; // USB device is no more
1868
1869 mutex_unlock(&usbvision->lock);
1870
1871 if (usbvision->user) {
1872 printk(KERN_INFO "%s: In use, disconnect pending\n",
1873 __func__);
1874 wake_up_interruptible(&usbvision->wait_frame);
1875 wake_up_interruptible(&usbvision->wait_stream);
1876 } else {
1877 usbvision_release(usbvision);
1878 }
1879
1880 PDEBUG(DBG_PROBE, "success");
1881 }
1882
1883 static struct usb_driver usbvision_driver = {
1884 .name = "usbvision",
1885 .id_table = usbvision_table,
1886 .probe = usbvision_probe,
1887 .disconnect = usbvision_disconnect
1888 };
1889
1890 /*
1891 * usbvision_init()
1892 *
1893 * This code is run to initialize the driver.
1894 *
1895 */
1896 static int __init usbvision_init(void)
1897 {
1898 int errCode;
1899
1900 PDEBUG(DBG_PROBE, "");
1901
1902 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1903 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
1904 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
1905
1906 /* disable planar mode support unless compression enabled */
1907 if (isocMode != ISOC_MODE_COMPRESS ) {
1908 // FIXME : not the right way to set supported flag
1909 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1910 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1911 }
1912
1913 errCode = usb_register(&usbvision_driver);
1914
1915 if (errCode == 0) {
1916 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1917 PDEBUG(DBG_PROBE, "success");
1918 }
1919 return errCode;
1920 }
1921
1922 static void __exit usbvision_exit(void)
1923 {
1924 PDEBUG(DBG_PROBE, "");
1925
1926 usb_deregister(&usbvision_driver);
1927 PDEBUG(DBG_PROBE, "success");
1928 }
1929
1930 module_init(usbvision_init);
1931 module_exit(usbvision_exit);
1932
1933 /*
1934 * Overrides for Emacs so that we follow Linus's tabbing style.
1935 * ---------------------------------------------------------------------------
1936 * Local variables:
1937 * c-basic-offset: 8
1938 * End:
1939 */
AMDTP streaming driver for the Linux FireWire stack (Juju)