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Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
[deliverable/linux.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/vmalloc.h>
57 #include <linux/module.h>
58 #include <linux/init.h>
59 #include <linux/spinlock.h>
60 #include <asm/io.h>
61 #include <linux/videodev2.h>
62 #include <linux/video_decoder.h>
63 #include <linux/i2c.h>
64
65 #include <media/saa7115.h>
66 #include <media/v4l2-common.h>
67 #include <media/v4l2-ioctl.h>
68 #include <media/tuner.h>
69
70 #include <linux/workqueue.h>
71
72 #include "usbvision.h"
73 #include "usbvision-cards.h"
74
75 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
76 Dwaine Garden <DwaineGarden@rogers.com>"
77 #define DRIVER_NAME "usbvision"
78 #define DRIVER_ALIAS "USBVision"
79 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
80 #define DRIVER_LICENSE "GPL"
81 #define USBVISION_DRIVER_VERSION_MAJOR 0
82 #define USBVISION_DRIVER_VERSION_MINOR 9
83 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
84 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
85 USBVISION_DRIVER_VERSION_MINOR,\
86 USBVISION_DRIVER_VERSION_PATCHLEVEL)
87 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
88 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
89 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
90
91 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
92
93
94 #ifdef USBVISION_DEBUG
95 #define PDEBUG(level, fmt, args...) { \
96 if (video_debug & (level)) \
97 printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \
98 __func__, __LINE__ , ## args); \
99 }
100 #else
101 #define PDEBUG(level, fmt, args...) do {} while(0)
102 #endif
103
104 #define DBG_IO 1<<1
105 #define DBG_PROBE 1<<2
106 #define DBG_MMAP 1<<3
107
108 //String operations
109 #define rmspace(str) while(*str==' ') str++;
110 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
111
112
113 /* sequential number of usbvision device */
114 static int usbvision_nr;
115
116 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
117 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
118 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
119 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
120 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
121 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
122 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
123 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
124 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
125 };
126
127 /* Function prototypes */
128 static void usbvision_release(struct usb_usbvision *usbvision);
129
130 /* Default initialization of device driver parameters */
131 /* Set the default format for ISOC endpoint */
132 static int isocMode = ISOC_MODE_COMPRESS;
133 /* Set the default Debug Mode of the device driver */
134 static int video_debug;
135 /* Set the default device to power on at startup */
136 static int PowerOnAtOpen = 1;
137 /* Sequential Number of Video Device */
138 static int video_nr = -1;
139 /* Sequential Number of Radio Device */
140 static int radio_nr = -1;
141 /* Sequential Number of VBI Device */
142 static int vbi_nr = -1;
143
144 /* Grab parameters for the device driver */
145
146 /* Showing parameters under SYSFS */
147 module_param(isocMode, int, 0444);
148 module_param(video_debug, int, 0444);
149 module_param(PowerOnAtOpen, int, 0444);
150 module_param(video_nr, int, 0444);
151 module_param(radio_nr, int, 0444);
152 module_param(vbi_nr, int, 0444);
153
154 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
155 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
156 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
157 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
158 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
159 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
160
161
162 // Misc stuff
163 MODULE_AUTHOR(DRIVER_AUTHOR);
164 MODULE_DESCRIPTION(DRIVER_DESC);
165 MODULE_LICENSE(DRIVER_LICENSE);
166 MODULE_VERSION(USBVISION_VERSION_STRING);
167 MODULE_ALIAS(DRIVER_ALIAS);
168
169
170 /*****************************************************************************/
171 /* SYSFS Code - Copied from the stv680.c usb module. */
172 /* Device information is located at /sys/class/video4linux/video0 */
173 /* Device parameters information is located at /sys/module/usbvision */
174 /* Device USB Information is located at */
175 /* /sys/bus/usb/drivers/USBVision Video Grabber */
176 /*****************************************************************************/
177
178 #define YES_NO(x) ((x) ? "Yes" : "No")
179
180 static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
181 {
182 struct video_device *vdev =
183 container_of(cd, struct video_device, dev);
184 return video_get_drvdata(vdev);
185 }
186
187 static ssize_t show_version(struct device *cd,
188 struct device_attribute *attr, char *buf)
189 {
190 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
191 }
192 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
193
194 static ssize_t show_model(struct device *cd,
195 struct device_attribute *attr, char *buf)
196 {
197 struct video_device *vdev =
198 container_of(cd, struct video_device, dev);
199 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
200 return sprintf(buf, "%s\n",
201 usbvision_device_data[usbvision->DevModel].ModelString);
202 }
203 static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
204
205 static ssize_t show_hue(struct device *cd,
206 struct device_attribute *attr, char *buf)
207 {
208 struct video_device *vdev =
209 container_of(cd, struct video_device, dev);
210 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
211 struct v4l2_control ctrl;
212 ctrl.id = V4L2_CID_HUE;
213 ctrl.value = 0;
214 if(usbvision->user)
215 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
216 return sprintf(buf, "%d\n", ctrl.value);
217 }
218 static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
219
220 static ssize_t show_contrast(struct device *cd,
221 struct device_attribute *attr, char *buf)
222 {
223 struct video_device *vdev =
224 container_of(cd, struct video_device, dev);
225 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
226 struct v4l2_control ctrl;
227 ctrl.id = V4L2_CID_CONTRAST;
228 ctrl.value = 0;
229 if(usbvision->user)
230 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
231 return sprintf(buf, "%d\n", ctrl.value);
232 }
233 static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
234
235 static ssize_t show_brightness(struct device *cd,
236 struct device_attribute *attr, char *buf)
237 {
238 struct video_device *vdev =
239 container_of(cd, struct video_device, dev);
240 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
241 struct v4l2_control ctrl;
242 ctrl.id = V4L2_CID_BRIGHTNESS;
243 ctrl.value = 0;
244 if(usbvision->user)
245 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
246 return sprintf(buf, "%d\n", ctrl.value);
247 }
248 static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
249
250 static ssize_t show_saturation(struct device *cd,
251 struct device_attribute *attr, char *buf)
252 {
253 struct video_device *vdev =
254 container_of(cd, struct video_device, dev);
255 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
256 struct v4l2_control ctrl;
257 ctrl.id = V4L2_CID_SATURATION;
258 ctrl.value = 0;
259 if(usbvision->user)
260 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
261 return sprintf(buf, "%d\n", ctrl.value);
262 }
263 static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
264
265 static ssize_t show_streaming(struct device *cd,
266 struct device_attribute *attr, char *buf)
267 {
268 struct video_device *vdev =
269 container_of(cd, struct video_device, dev);
270 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
271 return sprintf(buf, "%s\n",
272 YES_NO(usbvision->streaming==Stream_On?1:0));
273 }
274 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
275
276 static ssize_t show_compression(struct device *cd,
277 struct device_attribute *attr, char *buf)
278 {
279 struct video_device *vdev =
280 container_of(cd, struct video_device, dev);
281 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
282 return sprintf(buf, "%s\n",
283 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
284 }
285 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
286
287 static ssize_t show_device_bridge(struct device *cd,
288 struct device_attribute *attr, char *buf)
289 {
290 struct video_device *vdev =
291 container_of(cd, struct video_device, dev);
292 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
293 return sprintf(buf, "%d\n", usbvision->bridgeType);
294 }
295 static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
296
297 static void usbvision_create_sysfs(struct video_device *vdev)
298 {
299 int res;
300 if (!vdev)
301 return;
302 do {
303 res = device_create_file(&vdev->dev, &dev_attr_version);
304 if (res<0)
305 break;
306 res = device_create_file(&vdev->dev, &dev_attr_model);
307 if (res<0)
308 break;
309 res = device_create_file(&vdev->dev, &dev_attr_hue);
310 if (res<0)
311 break;
312 res = device_create_file(&vdev->dev, &dev_attr_contrast);
313 if (res<0)
314 break;
315 res = device_create_file(&vdev->dev, &dev_attr_brightness);
316 if (res<0)
317 break;
318 res = device_create_file(&vdev->dev, &dev_attr_saturation);
319 if (res<0)
320 break;
321 res = device_create_file(&vdev->dev, &dev_attr_streaming);
322 if (res<0)
323 break;
324 res = device_create_file(&vdev->dev, &dev_attr_compression);
325 if (res<0)
326 break;
327 res = device_create_file(&vdev->dev, &dev_attr_bridge);
328 if (res>=0)
329 return;
330 } while (0);
331
332 err("%s error: %d\n", __func__, res);
333 }
334
335 static void usbvision_remove_sysfs(struct video_device *vdev)
336 {
337 if (vdev) {
338 device_remove_file(&vdev->dev, &dev_attr_version);
339 device_remove_file(&vdev->dev, &dev_attr_model);
340 device_remove_file(&vdev->dev, &dev_attr_hue);
341 device_remove_file(&vdev->dev, &dev_attr_contrast);
342 device_remove_file(&vdev->dev, &dev_attr_brightness);
343 device_remove_file(&vdev->dev, &dev_attr_saturation);
344 device_remove_file(&vdev->dev, &dev_attr_streaming);
345 device_remove_file(&vdev->dev, &dev_attr_compression);
346 device_remove_file(&vdev->dev, &dev_attr_bridge);
347 }
348 }
349
350 /*
351 * usbvision_open()
352 *
353 * This is part of Video 4 Linux API. The driver can be opened by one
354 * client only (checks internal counter 'usbvision->user'). The procedure
355 * then allocates buffers needed for video processing.
356 *
357 */
358 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
359 {
360 struct usb_usbvision *usbvision = video_drvdata(file);
361 int errCode = 0;
362
363 PDEBUG(DBG_IO, "open");
364
365 lock_kernel();
366 usbvision_reset_powerOffTimer(usbvision);
367
368 if (usbvision->user)
369 errCode = -EBUSY;
370 else {
371 /* Allocate memory for the scratch ring buffer */
372 errCode = usbvision_scratch_alloc(usbvision);
373 if (isocMode==ISOC_MODE_COMPRESS) {
374 /* Allocate intermediate decompression buffers
375 only if needed */
376 errCode = usbvision_decompress_alloc(usbvision);
377 }
378 if (errCode) {
379 /* Deallocate all buffers if trouble */
380 usbvision_scratch_free(usbvision);
381 usbvision_decompress_free(usbvision);
382 }
383 }
384
385 /* If so far no errors then we shall start the camera */
386 if (!errCode) {
387 mutex_lock(&usbvision->lock);
388 if (usbvision->power == 0) {
389 usbvision_power_on(usbvision);
390 usbvision_i2c_register(usbvision);
391 }
392
393 /* Send init sequence only once, it's large! */
394 if (!usbvision->initialized) {
395 int setup_ok = 0;
396 setup_ok = usbvision_setup(usbvision,isocMode);
397 if (setup_ok)
398 usbvision->initialized = 1;
399 else
400 errCode = -EBUSY;
401 }
402
403 if (!errCode) {
404 usbvision_begin_streaming(usbvision);
405 errCode = usbvision_init_isoc(usbvision);
406 /* device must be initialized before isoc transfer */
407 usbvision_muxsel(usbvision,0);
408 usbvision->user++;
409 } else {
410 if (PowerOnAtOpen) {
411 usbvision_i2c_unregister(usbvision);
412 usbvision_power_off(usbvision);
413 usbvision->initialized = 0;
414 }
415 }
416 mutex_unlock(&usbvision->lock);
417 }
418
419 /* prepare queues */
420 usbvision_empty_framequeues(usbvision);
421
422 PDEBUG(DBG_IO, "success");
423 unlock_kernel();
424 return errCode;
425 }
426
427 /*
428 * usbvision_v4l2_close()
429 *
430 * This is part of Video 4 Linux API. The procedure
431 * stops streaming and deallocates all buffers that were earlier
432 * allocated in usbvision_v4l2_open().
433 *
434 */
435 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
436 {
437 struct usb_usbvision *usbvision = video_drvdata(file);
438
439 PDEBUG(DBG_IO, "close");
440 mutex_lock(&usbvision->lock);
441
442 usbvision_audio_off(usbvision);
443 usbvision_restart_isoc(usbvision);
444 usbvision_stop_isoc(usbvision);
445
446 usbvision_decompress_free(usbvision);
447 usbvision_frames_free(usbvision);
448 usbvision_empty_framequeues(usbvision);
449 usbvision_scratch_free(usbvision);
450
451 usbvision->user--;
452
453 if (PowerOnAtOpen) {
454 /* power off in a little while
455 to avoid off/on every close/open short sequences */
456 usbvision_set_powerOffTimer(usbvision);
457 usbvision->initialized = 0;
458 }
459
460 mutex_unlock(&usbvision->lock);
461
462 if (usbvision->remove_pending) {
463 printk(KERN_INFO "%s: Final disconnect\n", __func__);
464 usbvision_release(usbvision);
465 }
466
467 PDEBUG(DBG_IO, "success");
468 return 0;
469 }
470
471
472 /*
473 * usbvision_ioctl()
474 *
475 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
476 *
477 */
478 #ifdef CONFIG_VIDEO_ADV_DEBUG
479 static int vidioc_g_register (struct file *file, void *priv,
480 struct v4l2_register *reg)
481 {
482 struct usb_usbvision *usbvision = video_drvdata(file);
483 int errCode;
484
485 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
486 return -EINVAL;
487 /* NT100x has a 8-bit register space */
488 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
489 if (errCode < 0) {
490 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
491 __func__, errCode);
492 return errCode;
493 }
494 reg->val = errCode;
495 return 0;
496 }
497
498 static int vidioc_s_register (struct file *file, void *priv,
499 struct v4l2_register *reg)
500 {
501 struct usb_usbvision *usbvision = video_drvdata(file);
502 int errCode;
503
504 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
505 return -EINVAL;
506 /* NT100x has a 8-bit register space */
507 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
508 if (errCode < 0) {
509 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
510 __func__, errCode);
511 return errCode;
512 }
513 return 0;
514 }
515 #endif
516
517 static int vidioc_querycap (struct file *file, void *priv,
518 struct v4l2_capability *vc)
519 {
520 struct usb_usbvision *usbvision = video_drvdata(file);
521
522 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
523 strlcpy(vc->card,
524 usbvision_device_data[usbvision->DevModel].ModelString,
525 sizeof(vc->card));
526 strlcpy(vc->bus_info, dev_name(&usbvision->dev->dev),
527 sizeof(vc->bus_info));
528 vc->version = USBVISION_DRIVER_VERSION;
529 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
530 V4L2_CAP_AUDIO |
531 V4L2_CAP_READWRITE |
532 V4L2_CAP_STREAMING |
533 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
534 return 0;
535 }
536
537 static int vidioc_enum_input (struct file *file, void *priv,
538 struct v4l2_input *vi)
539 {
540 struct usb_usbvision *usbvision = video_drvdata(file);
541 int chan;
542
543 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
544 return -EINVAL;
545 if (usbvision->have_tuner) {
546 chan = vi->index;
547 } else {
548 chan = vi->index + 1; /*skip Television string*/
549 }
550 /* Determine the requested input characteristics
551 specific for each usbvision card model */
552 switch(chan) {
553 case 0:
554 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
555 strcpy(vi->name, "White Video Input");
556 } else {
557 strcpy(vi->name, "Television");
558 vi->type = V4L2_INPUT_TYPE_TUNER;
559 vi->audioset = 1;
560 vi->tuner = chan;
561 vi->std = USBVISION_NORMS;
562 }
563 break;
564 case 1:
565 vi->type = V4L2_INPUT_TYPE_CAMERA;
566 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
567 strcpy(vi->name, "Green Video Input");
568 } else {
569 strcpy(vi->name, "Composite Video Input");
570 }
571 vi->std = V4L2_STD_PAL;
572 break;
573 case 2:
574 vi->type = V4L2_INPUT_TYPE_CAMERA;
575 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
576 strcpy(vi->name, "Yellow Video Input");
577 } else {
578 strcpy(vi->name, "S-Video Input");
579 }
580 vi->std = V4L2_STD_PAL;
581 break;
582 case 3:
583 vi->type = V4L2_INPUT_TYPE_CAMERA;
584 strcpy(vi->name, "Red Video Input");
585 vi->std = V4L2_STD_PAL;
586 break;
587 }
588 return 0;
589 }
590
591 static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
592 {
593 struct usb_usbvision *usbvision = video_drvdata(file);
594
595 *input = usbvision->ctl_input;
596 return 0;
597 }
598
599 static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
600 {
601 struct usb_usbvision *usbvision = video_drvdata(file);
602
603 if ((input >= usbvision->video_inputs) || (input < 0) )
604 return -EINVAL;
605
606 mutex_lock(&usbvision->lock);
607 usbvision_muxsel(usbvision, input);
608 usbvision_set_input(usbvision);
609 usbvision_set_output(usbvision,
610 usbvision->curwidth,
611 usbvision->curheight);
612 mutex_unlock(&usbvision->lock);
613 return 0;
614 }
615
616 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
617 {
618 struct usb_usbvision *usbvision = video_drvdata(file);
619
620 usbvision->tvnormId=*id;
621
622 mutex_lock(&usbvision->lock);
623 call_i2c_clients(usbvision, VIDIOC_S_STD,
624 &usbvision->tvnormId);
625 mutex_unlock(&usbvision->lock);
626 /* propagate the change to the decoder */
627 usbvision_muxsel(usbvision, usbvision->ctl_input);
628
629 return 0;
630 }
631
632 static int vidioc_g_tuner (struct file *file, void *priv,
633 struct v4l2_tuner *vt)
634 {
635 struct usb_usbvision *usbvision = video_drvdata(file);
636
637 if (!usbvision->have_tuner || vt->index) // Only tuner 0
638 return -EINVAL;
639 if(usbvision->radio) {
640 strcpy(vt->name, "Radio");
641 vt->type = V4L2_TUNER_RADIO;
642 } else {
643 strcpy(vt->name, "Television");
644 }
645 /* Let clients fill in the remainder of this struct */
646 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
647
648 return 0;
649 }
650
651 static int vidioc_s_tuner (struct file *file, void *priv,
652 struct v4l2_tuner *vt)
653 {
654 struct usb_usbvision *usbvision = video_drvdata(file);
655
656 // Only no or one tuner for now
657 if (!usbvision->have_tuner || vt->index)
658 return -EINVAL;
659 /* let clients handle this */
660 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
661
662 return 0;
663 }
664
665 static int vidioc_g_frequency (struct file *file, void *priv,
666 struct v4l2_frequency *freq)
667 {
668 struct usb_usbvision *usbvision = video_drvdata(file);
669
670 freq->tuner = 0; // Only one tuner
671 if(usbvision->radio) {
672 freq->type = V4L2_TUNER_RADIO;
673 } else {
674 freq->type = V4L2_TUNER_ANALOG_TV;
675 }
676 freq->frequency = usbvision->freq;
677
678 return 0;
679 }
680
681 static int vidioc_s_frequency (struct file *file, void *priv,
682 struct v4l2_frequency *freq)
683 {
684 struct usb_usbvision *usbvision = video_drvdata(file);
685
686 // Only no or one tuner for now
687 if (!usbvision->have_tuner || freq->tuner)
688 return -EINVAL;
689
690 usbvision->freq = freq->frequency;
691 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
692
693 return 0;
694 }
695
696 static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
697 {
698 struct usb_usbvision *usbvision = video_drvdata(file);
699
700 memset(a,0,sizeof(*a));
701 if(usbvision->radio) {
702 strcpy(a->name,"Radio");
703 } else {
704 strcpy(a->name, "TV");
705 }
706
707 return 0;
708 }
709
710 static int vidioc_s_audio (struct file *file, void *fh,
711 struct v4l2_audio *a)
712 {
713 if(a->index) {
714 return -EINVAL;
715 }
716
717 return 0;
718 }
719
720 static int vidioc_queryctrl (struct file *file, void *priv,
721 struct v4l2_queryctrl *ctrl)
722 {
723 struct usb_usbvision *usbvision = video_drvdata(file);
724 int id=ctrl->id;
725
726 memset(ctrl,0,sizeof(*ctrl));
727 ctrl->id=id;
728
729 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
730
731 if (!ctrl->type)
732 return -EINVAL;
733
734 return 0;
735 }
736
737 static int vidioc_g_ctrl (struct file *file, void *priv,
738 struct v4l2_control *ctrl)
739 {
740 struct usb_usbvision *usbvision = video_drvdata(file);
741 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
742
743 return 0;
744 }
745
746 static int vidioc_s_ctrl (struct file *file, void *priv,
747 struct v4l2_control *ctrl)
748 {
749 struct usb_usbvision *usbvision = video_drvdata(file);
750 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
751
752 return 0;
753 }
754
755 static int vidioc_reqbufs (struct file *file,
756 void *priv, struct v4l2_requestbuffers *vr)
757 {
758 struct usb_usbvision *usbvision = video_drvdata(file);
759 int ret;
760
761 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
762
763 /* Check input validity:
764 the user must do a VIDEO CAPTURE and MMAP method. */
765 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
766 (vr->memory != V4L2_MEMORY_MMAP))
767 return -EINVAL;
768
769 if(usbvision->streaming == Stream_On) {
770 if ((ret = usbvision_stream_interrupt(usbvision)))
771 return ret;
772 }
773
774 usbvision_frames_free(usbvision);
775 usbvision_empty_framequeues(usbvision);
776 vr->count = usbvision_frames_alloc(usbvision,vr->count);
777
778 usbvision->curFrame = NULL;
779
780 return 0;
781 }
782
783 static int vidioc_querybuf (struct file *file,
784 void *priv, struct v4l2_buffer *vb)
785 {
786 struct usb_usbvision *usbvision = video_drvdata(file);
787 struct usbvision_frame *frame;
788
789 /* FIXME : must control
790 that buffers are mapped (VIDIOC_REQBUFS has been called) */
791 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
792 return -EINVAL;
793 }
794 if(vb->index>=usbvision->num_frames) {
795 return -EINVAL;
796 }
797 /* Updating the corresponding frame state */
798 vb->flags = 0;
799 frame = &usbvision->frame[vb->index];
800 if(frame->grabstate >= FrameState_Ready)
801 vb->flags |= V4L2_BUF_FLAG_QUEUED;
802 if(frame->grabstate >= FrameState_Done)
803 vb->flags |= V4L2_BUF_FLAG_DONE;
804 if(frame->grabstate == FrameState_Unused)
805 vb->flags |= V4L2_BUF_FLAG_MAPPED;
806 vb->memory = V4L2_MEMORY_MMAP;
807
808 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
809
810 vb->memory = V4L2_MEMORY_MMAP;
811 vb->field = V4L2_FIELD_NONE;
812 vb->length = usbvision->curwidth*
813 usbvision->curheight*
814 usbvision->palette.bytes_per_pixel;
815 vb->timestamp = usbvision->frame[vb->index].timestamp;
816 vb->sequence = usbvision->frame[vb->index].sequence;
817 return 0;
818 }
819
820 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
821 {
822 struct usb_usbvision *usbvision = video_drvdata(file);
823 struct usbvision_frame *frame;
824 unsigned long lock_flags;
825
826 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
827 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
828 return -EINVAL;
829 }
830 if(vb->index>=usbvision->num_frames) {
831 return -EINVAL;
832 }
833
834 frame = &usbvision->frame[vb->index];
835
836 if (frame->grabstate != FrameState_Unused) {
837 return -EAGAIN;
838 }
839
840 /* Mark it as ready and enqueue frame */
841 frame->grabstate = FrameState_Ready;
842 frame->scanstate = ScanState_Scanning;
843 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
844
845 vb->flags &= ~V4L2_BUF_FLAG_DONE;
846
847 /* set v4l2_format index */
848 frame->v4l2_format = usbvision->palette;
849
850 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
851 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
852 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
853
854 return 0;
855 }
856
857 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
858 {
859 struct usb_usbvision *usbvision = video_drvdata(file);
860 int ret;
861 struct usbvision_frame *f;
862 unsigned long lock_flags;
863
864 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
865 return -EINVAL;
866
867 if (list_empty(&(usbvision->outqueue))) {
868 if (usbvision->streaming == Stream_Idle)
869 return -EINVAL;
870 ret = wait_event_interruptible
871 (usbvision->wait_frame,
872 !list_empty(&(usbvision->outqueue)));
873 if (ret)
874 return ret;
875 }
876
877 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
878 f = list_entry(usbvision->outqueue.next,
879 struct usbvision_frame, frame);
880 list_del(usbvision->outqueue.next);
881 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
882
883 f->grabstate = FrameState_Unused;
884
885 vb->memory = V4L2_MEMORY_MMAP;
886 vb->flags = V4L2_BUF_FLAG_MAPPED |
887 V4L2_BUF_FLAG_QUEUED |
888 V4L2_BUF_FLAG_DONE;
889 vb->index = f->index;
890 vb->sequence = f->sequence;
891 vb->timestamp = f->timestamp;
892 vb->field = V4L2_FIELD_NONE;
893 vb->bytesused = f->scanlength;
894
895 return 0;
896 }
897
898 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
899 {
900 struct usb_usbvision *usbvision = video_drvdata(file);
901 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
902
903 usbvision->streaming = Stream_On;
904 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
905
906 return 0;
907 }
908
909 static int vidioc_streamoff(struct file *file,
910 void *priv, enum v4l2_buf_type type)
911 {
912 struct usb_usbvision *usbvision = video_drvdata(file);
913 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
914
915 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
916 return -EINVAL;
917
918 if(usbvision->streaming == Stream_On) {
919 usbvision_stream_interrupt(usbvision);
920 /* Stop all video streamings */
921 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
922 }
923 usbvision_empty_framequeues(usbvision);
924
925 return 0;
926 }
927
928 static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
929 struct v4l2_fmtdesc *vfd)
930 {
931 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
932 return -EINVAL;
933 }
934 vfd->flags = 0;
935 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
936 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
937 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
938 memset(vfd->reserved, 0, sizeof(vfd->reserved));
939 return 0;
940 }
941
942 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
943 struct v4l2_format *vf)
944 {
945 struct usb_usbvision *usbvision = video_drvdata(file);
946 vf->fmt.pix.width = usbvision->curwidth;
947 vf->fmt.pix.height = usbvision->curheight;
948 vf->fmt.pix.pixelformat = usbvision->palette.format;
949 vf->fmt.pix.bytesperline =
950 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
951 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
952 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
953 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
954
955 return 0;
956 }
957
958 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
959 struct v4l2_format *vf)
960 {
961 struct usb_usbvision *usbvision = video_drvdata(file);
962 int formatIdx;
963
964 /* Find requested format in available ones */
965 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
966 if(vf->fmt.pix.pixelformat ==
967 usbvision_v4l2_format[formatIdx].format) {
968 usbvision->palette = usbvision_v4l2_format[formatIdx];
969 break;
970 }
971 }
972 /* robustness */
973 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
974 return -EINVAL;
975 }
976 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
977 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
978
979 vf->fmt.pix.bytesperline = vf->fmt.pix.width*
980 usbvision->palette.bytes_per_pixel;
981 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
982
983 return 0;
984 }
985
986 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
987 struct v4l2_format *vf)
988 {
989 struct usb_usbvision *usbvision = video_drvdata(file);
990 int ret;
991
992 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
993 return ret;
994 }
995
996 /* stop io in case it is already in progress */
997 if(usbvision->streaming == Stream_On) {
998 if ((ret = usbvision_stream_interrupt(usbvision)))
999 return ret;
1000 }
1001 usbvision_frames_free(usbvision);
1002 usbvision_empty_framequeues(usbvision);
1003
1004 usbvision->curFrame = NULL;
1005
1006 /* by now we are committed to the new data... */
1007 mutex_lock(&usbvision->lock);
1008 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1009 mutex_unlock(&usbvision->lock);
1010
1011 return 0;
1012 }
1013
1014 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1015 size_t count, loff_t *ppos)
1016 {
1017 struct usb_usbvision *usbvision = video_drvdata(file);
1018 int noblock = file->f_flags & O_NONBLOCK;
1019 unsigned long lock_flags;
1020
1021 int ret,i;
1022 struct usbvision_frame *frame;
1023
1024 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
1025 (unsigned long)count, noblock);
1026
1027 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1028 return -EFAULT;
1029
1030 /* This entry point is compatible with the mmap routines
1031 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1032 to get frames or call read on the device. */
1033 if(!usbvision->num_frames) {
1034 /* First, allocate some frames to work with
1035 if this has not been done with VIDIOC_REQBUF */
1036 usbvision_frames_free(usbvision);
1037 usbvision_empty_framequeues(usbvision);
1038 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1039 }
1040
1041 if(usbvision->streaming != Stream_On) {
1042 /* no stream is running, make it running ! */
1043 usbvision->streaming = Stream_On;
1044 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1045 }
1046
1047 /* Then, enqueue as many frames as possible
1048 (like a user of VIDIOC_QBUF would do) */
1049 for(i=0;i<usbvision->num_frames;i++) {
1050 frame = &usbvision->frame[i];
1051 if(frame->grabstate == FrameState_Unused) {
1052 /* Mark it as ready and enqueue frame */
1053 frame->grabstate = FrameState_Ready;
1054 frame->scanstate = ScanState_Scanning;
1055 /* Accumulated in usbvision_parse_data() */
1056 frame->scanlength = 0;
1057
1058 /* set v4l2_format index */
1059 frame->v4l2_format = usbvision->palette;
1060
1061 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1062 list_add_tail(&frame->frame, &usbvision->inqueue);
1063 spin_unlock_irqrestore(&usbvision->queue_lock,
1064 lock_flags);
1065 }
1066 }
1067
1068 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1069 if (list_empty(&(usbvision->outqueue))) {
1070 if(noblock)
1071 return -EAGAIN;
1072
1073 ret = wait_event_interruptible
1074 (usbvision->wait_frame,
1075 !list_empty(&(usbvision->outqueue)));
1076 if (ret)
1077 return ret;
1078 }
1079
1080 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1081 frame = list_entry(usbvision->outqueue.next,
1082 struct usbvision_frame, frame);
1083 list_del(usbvision->outqueue.next);
1084 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1085
1086 /* An error returns an empty frame */
1087 if (frame->grabstate == FrameState_Error) {
1088 frame->bytes_read = 0;
1089 return 0;
1090 }
1091
1092 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1093 __func__,
1094 frame->index, frame->bytes_read, frame->scanlength);
1095
1096 /* copy bytes to user space; we allow for partials reads */
1097 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1098 count = frame->scanlength - frame->bytes_read;
1099
1100 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1101 return -EFAULT;
1102 }
1103
1104 frame->bytes_read += count;
1105 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1106 __func__,
1107 (unsigned long)count, frame->bytes_read);
1108
1109 /* For now, forget the frame if it has not been read in one shot. */
1110 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1111 frame->bytes_read = 0;
1112
1113 /* Mark it as available to be used again. */
1114 frame->grabstate = FrameState_Unused;
1115 /* } */
1116
1117 return count;
1118 }
1119
1120 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1121 {
1122 unsigned long size = vma->vm_end - vma->vm_start,
1123 start = vma->vm_start;
1124 void *pos;
1125 u32 i;
1126 struct usb_usbvision *usbvision = video_drvdata(file);
1127
1128 PDEBUG(DBG_MMAP, "mmap");
1129
1130 mutex_lock(&usbvision->lock);
1131
1132 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1133 mutex_unlock(&usbvision->lock);
1134 return -EFAULT;
1135 }
1136
1137 if (!(vma->vm_flags & VM_WRITE) ||
1138 size != PAGE_ALIGN(usbvision->max_frame_size)) {
1139 mutex_unlock(&usbvision->lock);
1140 return -EINVAL;
1141 }
1142
1143 for (i = 0; i < usbvision->num_frames; i++) {
1144 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1145 vma->vm_pgoff)
1146 break;
1147 }
1148 if (i == usbvision->num_frames) {
1149 PDEBUG(DBG_MMAP,
1150 "mmap: user supplied mapping address is out of range");
1151 mutex_unlock(&usbvision->lock);
1152 return -EINVAL;
1153 }
1154
1155 /* VM_IO is eventually going to replace PageReserved altogether */
1156 vma->vm_flags |= VM_IO;
1157 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1158
1159 pos = usbvision->frame[i].data;
1160 while (size > 0) {
1161
1162 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1163 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1164 mutex_unlock(&usbvision->lock);
1165 return -EAGAIN;
1166 }
1167 start += PAGE_SIZE;
1168 pos += PAGE_SIZE;
1169 size -= PAGE_SIZE;
1170 }
1171
1172 mutex_unlock(&usbvision->lock);
1173 return 0;
1174 }
1175
1176
1177 /*
1178 * Here comes the stuff for radio on usbvision based devices
1179 *
1180 */
1181 static int usbvision_radio_open(struct inode *inode, struct file *file)
1182 {
1183 struct usb_usbvision *usbvision = video_drvdata(file);
1184 int errCode = 0;
1185
1186 PDEBUG(DBG_IO, "%s:", __func__);
1187
1188 mutex_lock(&usbvision->lock);
1189
1190 if (usbvision->user) {
1191 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
1192 errCode = -EBUSY;
1193 }
1194 else {
1195 if(PowerOnAtOpen) {
1196 usbvision_reset_powerOffTimer(usbvision);
1197 if (usbvision->power == 0) {
1198 usbvision_power_on(usbvision);
1199 usbvision_i2c_register(usbvision);
1200 }
1201 }
1202
1203 /* Alternate interface 1 is is the biggest frame size */
1204 errCode = usbvision_set_alternate(usbvision);
1205 if (errCode < 0) {
1206 usbvision->last_error = errCode;
1207 errCode = -EBUSY;
1208 goto out;
1209 }
1210
1211 // If so far no errors then we shall start the radio
1212 usbvision->radio = 1;
1213 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1214 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1215 usbvision->user++;
1216 }
1217
1218 if (errCode) {
1219 if (PowerOnAtOpen) {
1220 usbvision_i2c_unregister(usbvision);
1221 usbvision_power_off(usbvision);
1222 usbvision->initialized = 0;
1223 }
1224 }
1225 out:
1226 mutex_unlock(&usbvision->lock);
1227 return errCode;
1228 }
1229
1230
1231 static int usbvision_radio_close(struct inode *inode, struct file *file)
1232 {
1233 struct usb_usbvision *usbvision = video_drvdata(file);
1234 int errCode = 0;
1235
1236 PDEBUG(DBG_IO, "");
1237
1238 mutex_lock(&usbvision->lock);
1239
1240 /* Set packet size to 0 */
1241 usbvision->ifaceAlt=0;
1242 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1243 usbvision->ifaceAlt);
1244
1245 usbvision_audio_off(usbvision);
1246 usbvision->radio=0;
1247 usbvision->user--;
1248
1249 if (PowerOnAtOpen) {
1250 usbvision_set_powerOffTimer(usbvision);
1251 usbvision->initialized = 0;
1252 }
1253
1254 mutex_unlock(&usbvision->lock);
1255
1256 if (usbvision->remove_pending) {
1257 printk(KERN_INFO "%s: Final disconnect\n", __func__);
1258 usbvision_release(usbvision);
1259 }
1260
1261 PDEBUG(DBG_IO, "success");
1262 return errCode;
1263 }
1264
1265 /*
1266 * Here comes the stuff for vbi on usbvision based devices
1267 *
1268 */
1269 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1270 {
1271 /* TODO */
1272 return -ENODEV;
1273 }
1274
1275 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1276 {
1277 /* TODO */
1278 return -ENODEV;
1279 }
1280
1281 static int usbvision_do_vbi_ioctl(struct file *file,
1282 unsigned int cmd, void *arg)
1283 {
1284 /* TODO */
1285 return -ENOIOCTLCMD;
1286 }
1287
1288 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1289 unsigned int cmd, unsigned long arg)
1290 {
1291 return video_usercopy(file, cmd, arg, usbvision_do_vbi_ioctl);
1292 }
1293
1294
1295 //
1296 // Video registration stuff
1297 //
1298
1299 // Video template
1300 static const struct file_operations usbvision_fops = {
1301 .owner = THIS_MODULE,
1302 .open = usbvision_v4l2_open,
1303 .release = usbvision_v4l2_close,
1304 .read = usbvision_v4l2_read,
1305 .mmap = usbvision_v4l2_mmap,
1306 .ioctl = video_ioctl2,
1307 .llseek = no_llseek,
1308 /* .poll = video_poll, */
1309 .compat_ioctl = v4l_compat_ioctl32,
1310 };
1311
1312 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
1313 .vidioc_querycap = vidioc_querycap,
1314 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1315 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1316 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1317 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1318 .vidioc_reqbufs = vidioc_reqbufs,
1319 .vidioc_querybuf = vidioc_querybuf,
1320 .vidioc_qbuf = vidioc_qbuf,
1321 .vidioc_dqbuf = vidioc_dqbuf,
1322 .vidioc_s_std = vidioc_s_std,
1323 .vidioc_enum_input = vidioc_enum_input,
1324 .vidioc_g_input = vidioc_g_input,
1325 .vidioc_s_input = vidioc_s_input,
1326 .vidioc_queryctrl = vidioc_queryctrl,
1327 .vidioc_g_audio = vidioc_g_audio,
1328 .vidioc_s_audio = vidioc_s_audio,
1329 .vidioc_g_ctrl = vidioc_g_ctrl,
1330 .vidioc_s_ctrl = vidioc_s_ctrl,
1331 .vidioc_streamon = vidioc_streamon,
1332 .vidioc_streamoff = vidioc_streamoff,
1333 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1334 /* .vidiocgmbuf = vidiocgmbuf, */
1335 #endif
1336 .vidioc_g_tuner = vidioc_g_tuner,
1337 .vidioc_s_tuner = vidioc_s_tuner,
1338 .vidioc_g_frequency = vidioc_g_frequency,
1339 .vidioc_s_frequency = vidioc_s_frequency,
1340 #ifdef CONFIG_VIDEO_ADV_DEBUG
1341 .vidioc_g_register = vidioc_g_register,
1342 .vidioc_s_register = vidioc_s_register,
1343 #endif
1344 };
1345
1346 static struct video_device usbvision_video_template = {
1347 .fops = &usbvision_fops,
1348 .ioctl_ops = &usbvision_ioctl_ops,
1349 .name = "usbvision-video",
1350 .release = video_device_release,
1351 .minor = -1,
1352 .tvnorms = USBVISION_NORMS,
1353 .current_norm = V4L2_STD_PAL
1354 };
1355
1356
1357 // Radio template
1358 static const struct file_operations usbvision_radio_fops = {
1359 .owner = THIS_MODULE,
1360 .open = usbvision_radio_open,
1361 .release = usbvision_radio_close,
1362 .ioctl = video_ioctl2,
1363 .llseek = no_llseek,
1364 .compat_ioctl = v4l_compat_ioctl32,
1365 };
1366
1367 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
1368 .vidioc_querycap = vidioc_querycap,
1369 .vidioc_enum_input = vidioc_enum_input,
1370 .vidioc_g_input = vidioc_g_input,
1371 .vidioc_s_input = vidioc_s_input,
1372 .vidioc_queryctrl = vidioc_queryctrl,
1373 .vidioc_g_audio = vidioc_g_audio,
1374 .vidioc_s_audio = vidioc_s_audio,
1375 .vidioc_g_ctrl = vidioc_g_ctrl,
1376 .vidioc_s_ctrl = vidioc_s_ctrl,
1377 .vidioc_g_tuner = vidioc_g_tuner,
1378 .vidioc_s_tuner = vidioc_s_tuner,
1379 .vidioc_g_frequency = vidioc_g_frequency,
1380 .vidioc_s_frequency = vidioc_s_frequency,
1381 };
1382
1383 static struct video_device usbvision_radio_template = {
1384 .fops = &usbvision_radio_fops,
1385 .name = "usbvision-radio",
1386 .release = video_device_release,
1387 .minor = -1,
1388 .ioctl_ops = &usbvision_radio_ioctl_ops,
1389
1390 .tvnorms = USBVISION_NORMS,
1391 .current_norm = V4L2_STD_PAL
1392 };
1393
1394 // vbi template
1395 static const struct file_operations usbvision_vbi_fops = {
1396 .owner = THIS_MODULE,
1397 .open = usbvision_vbi_open,
1398 .release = usbvision_vbi_close,
1399 .ioctl = usbvision_vbi_ioctl,
1400 .llseek = no_llseek,
1401 .compat_ioctl = v4l_compat_ioctl32,
1402 };
1403
1404 static struct video_device usbvision_vbi_template=
1405 {
1406 .fops = &usbvision_vbi_fops,
1407 .release = video_device_release,
1408 .name = "usbvision-vbi",
1409 .minor = -1,
1410 };
1411
1412
1413 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1414 struct video_device *vdev_template,
1415 char *name)
1416 {
1417 struct usb_device *usb_dev = usbvision->dev;
1418 struct video_device *vdev;
1419
1420 if (usb_dev == NULL) {
1421 err("%s: usbvision->dev is not set", __func__);
1422 return NULL;
1423 }
1424
1425 vdev = video_device_alloc();
1426 if (NULL == vdev) {
1427 return NULL;
1428 }
1429 *vdev = *vdev_template;
1430 // vdev->minor = -1;
1431 vdev->parent = &usb_dev->dev;
1432 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1433 video_set_drvdata(vdev, usbvision);
1434 return vdev;
1435 }
1436
1437 // unregister video4linux devices
1438 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1439 {
1440 // vbi Device:
1441 if (usbvision->vbi) {
1442 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1443 usbvision->vbi->num);
1444 if (usbvision->vbi->minor != -1) {
1445 video_unregister_device(usbvision->vbi);
1446 } else {
1447 video_device_release(usbvision->vbi);
1448 }
1449 usbvision->vbi = NULL;
1450 }
1451
1452 // Radio Device:
1453 if (usbvision->rdev) {
1454 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1455 usbvision->rdev->num);
1456 if (usbvision->rdev->minor != -1) {
1457 video_unregister_device(usbvision->rdev);
1458 } else {
1459 video_device_release(usbvision->rdev);
1460 }
1461 usbvision->rdev = NULL;
1462 }
1463
1464 // Video Device:
1465 if (usbvision->vdev) {
1466 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1467 usbvision->vdev->num);
1468 if (usbvision->vdev->minor != -1) {
1469 video_unregister_device(usbvision->vdev);
1470 } else {
1471 video_device_release(usbvision->vdev);
1472 }
1473 usbvision->vdev = NULL;
1474 }
1475 }
1476
1477 // register video4linux devices
1478 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1479 {
1480 // Video Device:
1481 usbvision->vdev = usbvision_vdev_init(usbvision,
1482 &usbvision_video_template,
1483 "USBVision Video");
1484 if (usbvision->vdev == NULL) {
1485 goto err_exit;
1486 }
1487 if (video_register_device(usbvision->vdev,
1488 VFL_TYPE_GRABBER,
1489 video_nr)<0) {
1490 goto err_exit;
1491 }
1492 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1493 usbvision->nr, usbvision->vdev->num);
1494
1495 // Radio Device:
1496 if (usbvision_device_data[usbvision->DevModel].Radio) {
1497 // usbvision has radio
1498 usbvision->rdev = usbvision_vdev_init(usbvision,
1499 &usbvision_radio_template,
1500 "USBVision Radio");
1501 if (usbvision->rdev == NULL) {
1502 goto err_exit;
1503 }
1504 if (video_register_device(usbvision->rdev,
1505 VFL_TYPE_RADIO,
1506 radio_nr)<0) {
1507 goto err_exit;
1508 }
1509 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1510 usbvision->nr, usbvision->rdev->num);
1511 }
1512 // vbi Device:
1513 if (usbvision_device_data[usbvision->DevModel].vbi) {
1514 usbvision->vbi = usbvision_vdev_init(usbvision,
1515 &usbvision_vbi_template,
1516 "USBVision VBI");
1517 if (usbvision->vdev == NULL) {
1518 goto err_exit;
1519 }
1520 if (video_register_device(usbvision->vbi,
1521 VFL_TYPE_VBI,
1522 vbi_nr)<0) {
1523 goto err_exit;
1524 }
1525 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1526 usbvision->nr, usbvision->vbi->num);
1527 }
1528 // all done
1529 return 0;
1530
1531 err_exit:
1532 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1533 usbvision_unregister_video(usbvision);
1534 return -1;
1535 }
1536
1537 /*
1538 * usbvision_alloc()
1539 *
1540 * This code allocates the struct usb_usbvision.
1541 * It is filled with default values.
1542 *
1543 * Returns NULL on error, a pointer to usb_usbvision else.
1544 *
1545 */
1546 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1547 {
1548 struct usb_usbvision *usbvision;
1549
1550 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1551 NULL) {
1552 goto err_exit;
1553 }
1554
1555 usbvision->dev = dev;
1556
1557 mutex_init(&usbvision->lock); /* available */
1558
1559 // prepare control urb for control messages during interrupts
1560 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1561 if (usbvision->ctrlUrb == NULL) {
1562 goto err_exit;
1563 }
1564 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1565
1566 usbvision_init_powerOffTimer(usbvision);
1567
1568 return usbvision;
1569
1570 err_exit:
1571 if (usbvision && usbvision->ctrlUrb) {
1572 usb_free_urb(usbvision->ctrlUrb);
1573 }
1574 if (usbvision) {
1575 kfree(usbvision);
1576 }
1577 return NULL;
1578 }
1579
1580 /*
1581 * usbvision_release()
1582 *
1583 * This code does final release of struct usb_usbvision. This happens
1584 * after the device is disconnected -and- all clients closed their files.
1585 *
1586 */
1587 static void usbvision_release(struct usb_usbvision *usbvision)
1588 {
1589 PDEBUG(DBG_PROBE, "");
1590
1591 mutex_lock(&usbvision->lock);
1592
1593 usbvision_reset_powerOffTimer(usbvision);
1594
1595 usbvision->initialized = 0;
1596
1597 mutex_unlock(&usbvision->lock);
1598
1599 usbvision_remove_sysfs(usbvision->vdev);
1600 usbvision_unregister_video(usbvision);
1601
1602 if (usbvision->ctrlUrb) {
1603 usb_free_urb(usbvision->ctrlUrb);
1604 }
1605
1606 kfree(usbvision);
1607
1608 PDEBUG(DBG_PROBE, "success");
1609 }
1610
1611
1612 /*********************** usb interface **********************************/
1613
1614 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1615 {
1616 int model;
1617
1618 if (usbvision == NULL)
1619 return;
1620
1621 model = usbvision->DevModel;
1622 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1623
1624 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1625 usbvision->Vin_Reg2_Preset =
1626 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1627 } else {
1628 usbvision->Vin_Reg2_Preset = 0;
1629 }
1630
1631 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1632
1633 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1634 usbvision->ctl_input = 0;
1635
1636 /* This should be here to make i2c clients to be able to register */
1637 /* first switch off audio */
1638 usbvision_audio_off(usbvision);
1639 if (!PowerOnAtOpen) {
1640 /* and then power up the noisy tuner */
1641 usbvision_power_on(usbvision);
1642 usbvision_i2c_register(usbvision);
1643 }
1644 }
1645
1646 /*
1647 * usbvision_probe()
1648 *
1649 * This procedure queries device descriptor and accepts the interface
1650 * if it looks like USBVISION video device
1651 *
1652 */
1653 static int __devinit usbvision_probe(struct usb_interface *intf,
1654 const struct usb_device_id *devid)
1655 {
1656 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1657 struct usb_interface *uif;
1658 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1659 const struct usb_host_interface *interface;
1660 struct usb_usbvision *usbvision = NULL;
1661 const struct usb_endpoint_descriptor *endpoint;
1662 int model,i;
1663
1664 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1665 dev->descriptor.idVendor,
1666 dev->descriptor.idProduct, ifnum);
1667
1668 model = devid->driver_info;
1669 if ( (model<0) || (model>=usbvision_device_data_size) ) {
1670 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1671 return -ENODEV;
1672 }
1673 printk(KERN_INFO "%s: %s found\n", __func__,
1674 usbvision_device_data[model].ModelString);
1675
1676 if (usbvision_device_data[model].Interface >= 0) {
1677 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1678 } else {
1679 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1680 }
1681 endpoint = &interface->endpoint[1].desc;
1682 if (usb_endpoint_type(endpoint) !=
1683 USB_ENDPOINT_XFER_ISOC) {
1684 err("%s: interface %d. has non-ISO endpoint!",
1685 __func__, ifnum);
1686 err("%s: Endpoint attributes %d",
1687 __func__, endpoint->bmAttributes);
1688 return -ENODEV;
1689 }
1690 if (usb_endpoint_dir_out(endpoint)) {
1691 err("%s: interface %d. has ISO OUT endpoint!",
1692 __func__, ifnum);
1693 return -ENODEV;
1694 }
1695
1696 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1697 err("%s: couldn't allocate USBVision struct", __func__);
1698 return -ENOMEM;
1699 }
1700
1701 if (dev->descriptor.bNumConfigurations > 1) {
1702 usbvision->bridgeType = BRIDGE_NT1004;
1703 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1704 usbvision->bridgeType = BRIDGE_NT1005;
1705 } else {
1706 usbvision->bridgeType = BRIDGE_NT1003;
1707 }
1708 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1709
1710 mutex_lock(&usbvision->lock);
1711
1712 /* compute alternate max packet sizes */
1713 uif = dev->actconfig->interface[0];
1714
1715 usbvision->num_alt=uif->num_altsetting;
1716 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1717 usbvision->alt_max_pkt_size = kmalloc(32*
1718 usbvision->num_alt,GFP_KERNEL);
1719 if (usbvision->alt_max_pkt_size == NULL) {
1720 err("usbvision: out of memory!\n");
1721 mutex_unlock(&usbvision->lock);
1722 return -ENOMEM;
1723 }
1724
1725 for (i = 0; i < usbvision->num_alt ; i++) {
1726 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1727 wMaxPacketSize);
1728 usbvision->alt_max_pkt_size[i] =
1729 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1730 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1731 usbvision->alt_max_pkt_size[i]);
1732 }
1733
1734
1735 usbvision->nr = usbvision_nr++;
1736
1737 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1738 if (usbvision->have_tuner) {
1739 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1740 }
1741
1742 usbvision->tuner_addr = ADDR_UNSET;
1743
1744 usbvision->DevModel = model;
1745 usbvision->remove_pending = 0;
1746 usbvision->iface = ifnum;
1747 usbvision->ifaceAlt = 0;
1748 usbvision->video_endp = endpoint->bEndpointAddress;
1749 usbvision->isocPacketSize = 0;
1750 usbvision->usb_bandwidth = 0;
1751 usbvision->user = 0;
1752 usbvision->streaming = Stream_Off;
1753 usbvision_register_video(usbvision);
1754 usbvision_configure_video(usbvision);
1755 mutex_unlock(&usbvision->lock);
1756
1757
1758 usb_set_intfdata (intf, usbvision);
1759 usbvision_create_sysfs(usbvision->vdev);
1760
1761 PDEBUG(DBG_PROBE, "success");
1762 return 0;
1763 }
1764
1765
1766 /*
1767 * usbvision_disconnect()
1768 *
1769 * This procedure stops all driver activity, deallocates interface-private
1770 * structure (pointed by 'ptr') and after that driver should be removable
1771 * with no ill consequences.
1772 *
1773 */
1774 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1775 {
1776 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1777
1778 PDEBUG(DBG_PROBE, "");
1779
1780 if (usbvision == NULL) {
1781 err("%s: usb_get_intfdata() failed", __func__);
1782 return;
1783 }
1784 usb_set_intfdata (intf, NULL);
1785
1786 mutex_lock(&usbvision->lock);
1787
1788 // At this time we ask to cancel outstanding URBs
1789 usbvision_stop_isoc(usbvision);
1790
1791 if (usbvision->power) {
1792 usbvision_i2c_unregister(usbvision);
1793 usbvision_power_off(usbvision);
1794 }
1795 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1796
1797 usb_put_dev(usbvision->dev);
1798 usbvision->dev = NULL; // USB device is no more
1799
1800 mutex_unlock(&usbvision->lock);
1801
1802 if (usbvision->user) {
1803 printk(KERN_INFO "%s: In use, disconnect pending\n",
1804 __func__);
1805 wake_up_interruptible(&usbvision->wait_frame);
1806 wake_up_interruptible(&usbvision->wait_stream);
1807 } else {
1808 usbvision_release(usbvision);
1809 }
1810
1811 PDEBUG(DBG_PROBE, "success");
1812 }
1813
1814 static struct usb_driver usbvision_driver = {
1815 .name = "usbvision",
1816 .id_table = usbvision_table,
1817 .probe = usbvision_probe,
1818 .disconnect = usbvision_disconnect
1819 };
1820
1821 /*
1822 * usbvision_init()
1823 *
1824 * This code is run to initialize the driver.
1825 *
1826 */
1827 static int __init usbvision_init(void)
1828 {
1829 int errCode;
1830
1831 PDEBUG(DBG_PROBE, "");
1832
1833 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1834 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
1835 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
1836
1837 /* disable planar mode support unless compression enabled */
1838 if (isocMode != ISOC_MODE_COMPRESS ) {
1839 // FIXME : not the right way to set supported flag
1840 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1841 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1842 }
1843
1844 errCode = usb_register(&usbvision_driver);
1845
1846 if (errCode == 0) {
1847 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1848 PDEBUG(DBG_PROBE, "success");
1849 }
1850 return errCode;
1851 }
1852
1853 static void __exit usbvision_exit(void)
1854 {
1855 PDEBUG(DBG_PROBE, "");
1856
1857 usb_deregister(&usbvision_driver);
1858 PDEBUG(DBG_PROBE, "success");
1859 }
1860
1861 module_init(usbvision_init);
1862 module_exit(usbvision_exit);
1863
1864 /*
1865 * Overrides for Emacs so that we follow Linus's tabbing style.
1866 * ---------------------------------------------------------------------------
1867 * Local variables:
1868 * c-basic-offset: 8
1869 * End:
1870 */
Linux kernel - Deliverables
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