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[PATCH] remove many unneeded #includes of sched.h
[linux-2.6/linux-2.6-openrd.git] / drivers / media / video / usbvision / usbvision-video.c
blobaf33653f0db8a18b22097785b50ed7f06cdc75a8
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. Seems impossible, needs a codec interface. Which one?
40 * - Clean up the driver.
41 * - optimization for performance.
42 * - Add Videotext capability (VBI). Working on it.....
43 * - Check audio for other devices
44 *
45 */
46
47 #include <linux/version.h>
48 #include <linux/kernel.h>
49 #include <linux/list.h>
50 #include <linux/timer.h>
51 #include <linux/slab.h>
52 #include <linux/mm.h>
53 #include <linux/utsname.h>
54 #include <linux/highmem.h>
55 #include <linux/smp_lock.h>
56 #include <linux/videodev.h>
57 #include <linux/vmalloc.h>
58 #include <linux/module.h>
59 #include <linux/init.h>
60 #include <linux/spinlock.h>
61 #include <asm/io.h>
62 #include <linux/videodev2.h>
63 #include <linux/video_decoder.h>
64 #include <linux/i2c.h>
65
66 #include <media/saa7115.h>
67 #include <media/v4l2-common.h>
68 #include <media/tuner.h>
69 #include <media/audiochip.h>
70
71 #include <linux/moduleparam.h>
72 #include <linux/workqueue.h>
73
74 #ifdef CONFIG_KMOD
75 #include <linux/kmod.h>
76 #endif
77
78 #include "usbvision.h"
79
80 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>"
81 #define DRIVER_NAME "usbvision"
82 #define DRIVER_ALIAS "USBVision"
83 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
84 #define DRIVER_LICENSE "GPL"
85 #define USBVISION_DRIVER_VERSION_MAJOR 0
86 #define USBVISION_DRIVER_VERSION_MINOR 9
87 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
88 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL)
89 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __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)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
97 #else
98 #define PDEBUG(level, fmt, args...) do {} while(0)
99 #endif
100
101 #define DBG_IOCTL 1<<0
102 #define DBG_IO 1<<1
103 #define DBG_PROBE 1<<2
104 #define DBG_MMAP 1<<3
105
106 //String operations
107 #define rmspace(str) while(*str==' ') str++;
108 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
109
110
111 static int usbvision_nr = 0; // sequential number of usbvision device
112
113 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
114 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
115 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
116 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
117 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
118 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
119 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
120 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
121 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
122 };
123
124 /* supported tv norms */
125 static struct usbvision_tvnorm tvnorms[] = {
126 {
127 .name = "PAL",
128 .id = V4L2_STD_PAL,
129 }, {
130 .name = "NTSC",
131 .id = V4L2_STD_NTSC,
132 }, {
133 .name = "SECAM",
134 .id = V4L2_STD_SECAM,
135 }, {
136 .name = "PAL-M",
137 .id = V4L2_STD_PAL_M,
138 }
139 };
140
141 #define TVNORMS ARRAY_SIZE(tvnorms)
142
143 // Function prototypes
144 static void usbvision_release(struct usb_usbvision *usbvision);
145
146 // Default initalization of device driver parameters
147 static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint
148 static int video_debug = 0; // Set the default Debug Mode of the device driver
149 static int PowerOnAtOpen = 1; // Set the default device to power on at startup
150 static int video_nr = -1; // Sequential Number of Video Device
151 static int radio_nr = -1; // Sequential Number of Radio Device
152 static int vbi_nr = -1; // Sequential Number of VBI Device
153 static char *CustomDevice=NULL; // Set as nothing....
154
155 // Grab parameters for the device driver
156
157 #if defined(module_param) // Showing parameters under SYSFS
158 module_param(isocMode, int, 0444);
159 module_param(video_debug, int, 0444);
160 module_param(PowerOnAtOpen, int, 0444);
161 module_param(video_nr, int, 0444);
162 module_param(radio_nr, int, 0444);
163 module_param(vbi_nr, int, 0444);
164 module_param(CustomDevice, charp, 0444);
165 #else // Old Style
166 MODULE_PARAM(isocMode, "i");
167 MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver
168 MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive
169 MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup
170 MODULE_PARM(SwitchSVideoInput, "i"); // To help people with Black and White output with using s-video input. Some cables and input device are wired differently.
171 MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...)
172 MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...)
173 MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...)
174 MODULE_PARM(CustomDevice, "s"); // .... CustomDevice
175 #endif
176
177 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
178 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
179 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
180 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
181 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
182 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
183 MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null");
184
185
186 // Misc stuff
187 MODULE_AUTHOR(DRIVER_AUTHOR);
188 MODULE_DESCRIPTION(DRIVER_DESC);
189 MODULE_LICENSE(DRIVER_LICENSE);
190 MODULE_VERSION(USBVISION_VERSION_STRING);
191 MODULE_ALIAS(DRIVER_ALIAS);
192
193
194 /****************************************************************************************/
195 /* SYSFS Code - Copied from the stv680.c usb module. */
196 /* Device information is located at /sys/class/video4linux/video0 */
197 /* Device parameters information is located at /sys/module/usbvision */
198 /* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */
199 /****************************************************************************************/
200
201
202 #define YES_NO(x) ((x) ? "Yes" : "No")
203
204 static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
205 {
206 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
207 return video_get_drvdata(vdev);
208 }
209
210 static ssize_t show_version(struct class_device *cd, char *buf)
211 {
212 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
213 }
214 static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
215
216 static ssize_t show_model(struct class_device *cd, char *buf)
217 {
218 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
219 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
220 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString);
221 }
222 static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
223
224 static ssize_t show_hue(struct class_device *cd, char *buf)
225 {
226 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
227 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
228 struct v4l2_control ctrl;
229 ctrl.id = V4L2_CID_HUE;
230 ctrl.value = 0;
231 if(usbvision->user)
232 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
233 return sprintf(buf, "%d\n", ctrl.value >> 8);
234 }
235 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
236
237 static ssize_t show_contrast(struct class_device *cd, char *buf)
238 {
239 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
240 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
241 struct v4l2_control ctrl;
242 ctrl.id = V4L2_CID_CONTRAST;
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 >> 8);
247 }
248 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
249
250 static ssize_t show_brightness(struct class_device *cd, char *buf)
251 {
252 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
253 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
254 struct v4l2_control ctrl;
255 ctrl.id = V4L2_CID_BRIGHTNESS;
256 ctrl.value = 0;
257 if(usbvision->user)
258 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
259 return sprintf(buf, "%d\n", ctrl.value >> 8);
260 }
261 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
262
263 static ssize_t show_saturation(struct class_device *cd, char *buf)
264 {
265 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
266 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
267 struct v4l2_control ctrl;
268 ctrl.id = V4L2_CID_SATURATION;
269 ctrl.value = 0;
270 if(usbvision->user)
271 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
272 return sprintf(buf, "%d\n", ctrl.value >> 8);
273 }
274 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
275
276 static ssize_t show_streaming(struct class_device *cd, char *buf)
277 {
278 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
279 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
280 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0));
281 }
282 static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
283
284 static ssize_t show_compression(struct class_device *cd, char *buf)
285 {
286 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
287 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
288 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
289 }
290 static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
291
292 static ssize_t show_device_bridge(struct class_device *cd, char *buf)
293 {
294 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
295 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
296 return sprintf(buf, "%d\n", usbvision->bridgeType);
297 }
298 static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
299
300 static void usbvision_create_sysfs(struct video_device *vdev)
301 {
302 int res;
303 if (!vdev)
304 return;
305 do {
306 res=class_device_create_file(&vdev->class_dev,
307 &class_device_attr_version);
308 if (res<0)
309 break;
310 res=class_device_create_file(&vdev->class_dev,
311 &class_device_attr_model);
312 if (res<0)
313 break;
314 res=class_device_create_file(&vdev->class_dev,
315 &class_device_attr_hue);
316 if (res<0)
317 break;
318 res=class_device_create_file(&vdev->class_dev,
319 &class_device_attr_contrast);
320 if (res<0)
321 break;
322 res=class_device_create_file(&vdev->class_dev,
323 &class_device_attr_brightness);
324 if (res<0)
325 break;
326 res=class_device_create_file(&vdev->class_dev,
327 &class_device_attr_saturation);
328 if (res<0)
329 break;
330 res=class_device_create_file(&vdev->class_dev,
331 &class_device_attr_streaming);
332 if (res<0)
333 break;
334 res=class_device_create_file(&vdev->class_dev,
335 &class_device_attr_compression);
336 if (res<0)
337 break;
338 res=class_device_create_file(&vdev->class_dev,
339 &class_device_attr_bridge);
340 if (res>=0)
341 return;
342 } while (0);
343
344 err("%s error: %d\n", __FUNCTION__, res);
345 }
346
347 static void usbvision_remove_sysfs(struct video_device *vdev)
348 {
349 if (vdev) {
350 class_device_remove_file(&vdev->class_dev,
351 &class_device_attr_version);
352 class_device_remove_file(&vdev->class_dev,
353 &class_device_attr_model);
354 class_device_remove_file(&vdev->class_dev,
355 &class_device_attr_hue);
356 class_device_remove_file(&vdev->class_dev,
357 &class_device_attr_contrast);
358 class_device_remove_file(&vdev->class_dev,
359 &class_device_attr_brightness);
360 class_device_remove_file(&vdev->class_dev,
361 &class_device_attr_saturation);
362 class_device_remove_file(&vdev->class_dev,
363 &class_device_attr_streaming);
364 class_device_remove_file(&vdev->class_dev,
365 &class_device_attr_compression);
366 class_device_remove_file(&vdev->class_dev,
367 &class_device_attr_bridge);
368 }
369 }
370
371
372 /*
373 * usbvision_open()
374 *
375 * This is part of Video 4 Linux API. The driver can be opened by one
376 * client only (checks internal counter 'usbvision->user'). The procedure
377 * then allocates buffers needed for video processing.
378 *
379 */
380 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
381 {
382 struct video_device *dev = video_devdata(file);
383 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
384 int errCode = 0;
385
386 PDEBUG(DBG_IO, "open");
387
388
389 usbvision_reset_powerOffTimer(usbvision);
390
391 if (usbvision->user)
392 errCode = -EBUSY;
393 else {
394 /* Allocate memory for the frame buffers */
395 errCode = usbvision_frames_alloc(usbvision);
396 if(!errCode) {
397 /* Allocate memory for the scratch ring buffer */
398 errCode = usbvision_scratch_alloc(usbvision);
399 if ((!errCode) && (isocMode==ISOC_MODE_COMPRESS)) {
400 /* Allocate intermediate decompression buffers only if needed */
401 errCode = usbvision_decompress_alloc(usbvision);
402 }
403 }
404 if (errCode) {
405 /* Deallocate all buffers if trouble */
406 usbvision_frames_free(usbvision);
407 usbvision_scratch_free(usbvision);
408 usbvision_decompress_free(usbvision);
409 }
410 }
411
412 /* If so far no errors then we shall start the camera */
413 if (!errCode) {
414 down(&usbvision->lock);
415 if (usbvision->power == 0) {
416 usbvision_power_on(usbvision);
417 usbvision_init_i2c(usbvision);
418 }
419
420 /* Send init sequence only once, it's large! */
421 if (!usbvision->initialized) {
422 int setup_ok = 0;
423 setup_ok = usbvision_setup(usbvision,isocMode);
424 if (setup_ok)
425 usbvision->initialized = 1;
426 else
427 errCode = -EBUSY;
428 }
429
430 if (!errCode) {
431 usbvision_begin_streaming(usbvision);
432 errCode = usbvision_init_isoc(usbvision);
433 /* device needs to be initialized before isoc transfer */
434 usbvision_muxsel(usbvision,0);
435 usbvision->user++;
436 }
437 else {
438 if (PowerOnAtOpen) {
439 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
440 usbvision_power_off(usbvision);
441 usbvision->initialized = 0;
442 }
443 }
444 up(&usbvision->lock);
445 }
446
447 if (errCode) {
448 }
449
450 /* prepare queues */
451 usbvision_empty_framequeues(usbvision);
452
453 PDEBUG(DBG_IO, "success");
454 return errCode;
455 }
456
457 /*
458 * usbvision_v4l2_close()
459 *
460 * This is part of Video 4 Linux API. The procedure
461 * stops streaming and deallocates all buffers that were earlier
462 * allocated in usbvision_v4l2_open().
463 *
464 */
465 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
466 {
467 struct video_device *dev = video_devdata(file);
468 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
469
470 PDEBUG(DBG_IO, "close");
471 down(&usbvision->lock);
472
473 usbvision_audio_off(usbvision);
474 usbvision_restart_isoc(usbvision);
475 usbvision_stop_isoc(usbvision);
476
477 usbvision_decompress_free(usbvision);
478 usbvision_frames_free(usbvision);
479 usbvision_scratch_free(usbvision);
480
481 usbvision->user--;
482
483 if (PowerOnAtOpen) {
484 /* power off in a little while to avoid off/on every close/open short sequences */
485 usbvision_set_powerOffTimer(usbvision);
486 usbvision->initialized = 0;
487 }
488
489 up(&usbvision->lock);
490
491 if (usbvision->remove_pending) {
492 info("%s: Final disconnect", __FUNCTION__);
493 usbvision_release(usbvision);
494 }
495
496 PDEBUG(DBG_IO, "success");
497
498
499 return 0;
500 }
501
502
503 /*
504 * usbvision_ioctl()
505 *
506 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
507 *
508 */
509 static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
510 unsigned int cmd, void *arg)
511 {
512 struct video_device *dev = video_devdata(file);
513 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
514
515 if (!USBVISION_IS_OPERATIONAL(usbvision))
516 return -EFAULT;
517
518 switch (cmd) {
519
520 #ifdef CONFIG_VIDEO_ADV_DEBUG
521 /* ioctls to allow direct acces to the NT100x registers */
522 case VIDIOC_INT_G_REGISTER:
523 {
524 struct v4l2_register *reg = arg;
525 int errCode;
526
527 if (reg->i2c_id != 0)
528 return -EINVAL;
529 /* NT100x has a 8-bit register space */
530 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
531 if (errCode < 0) {
532 err("%s: VIDIOC_INT_G_REGISTER failed: error %d", __FUNCTION__, errCode);
533 }
534 else {
535 reg->val=(unsigned char)errCode;
536 PDEBUG(DBG_IOCTL, "VIDIOC_INT_G_REGISTER reg=0x%02X, value=0x%02X",
537 (unsigned int)reg->reg, reg->val);
538 errCode = 0; // No error
539 }
540 return errCode;
541 }
542 case VIDIOC_INT_S_REGISTER:
543 {
544 struct v4l2_register *reg = arg;
545 int errCode;
546
547 if (reg->i2c_id != 0)
548 return -EINVAL;
549 if (!capable(CAP_SYS_ADMIN))
550 return -EPERM;
551 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
552 if (errCode < 0) {
553 err("%s: VIDIOC_INT_S_REGISTER failed: error %d", __FUNCTION__, errCode);
554 }
555 else {
556 PDEBUG(DBG_IOCTL, "VIDIOC_INT_S_REGISTER reg=0x%02X, value=0x%02X",
557 (unsigned int)reg->reg, reg->val);
558 errCode = 0;
559 }
560 return 0;
561 }
562 #endif
563 case VIDIOC_QUERYCAP:
564 {
565 struct v4l2_capability *vc=arg;
566
567 memset(vc, 0, sizeof(*vc));
568 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
569 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
570 sizeof(vc->card));
571 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
572 sizeof(vc->bus_info));
573 vc->version = USBVISION_DRIVER_VERSION;
574 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
575 V4L2_CAP_AUDIO |
576 V4L2_CAP_READWRITE |
577 V4L2_CAP_STREAMING |
578 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
579 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
580 return 0;
581 }
582 case VIDIOC_ENUMINPUT:
583 {
584 struct v4l2_input *vi = arg;
585 int chan;
586
587 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
588 return -EINVAL;
589 if (usbvision->have_tuner) {
590 chan = vi->index;
591 }
592 else {
593 chan = vi->index + 1; //skip Television string
594 }
595 switch(chan) {
596 case 0:
597 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
598 strcpy(vi->name, "White Video Input");
599 }
600 else {
601 strcpy(vi->name, "Television");
602 vi->type = V4L2_INPUT_TYPE_TUNER;
603 vi->audioset = 1;
604 vi->tuner = chan;
605 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
606 }
607 break;
608 case 1:
609 vi->type = V4L2_INPUT_TYPE_CAMERA;
610 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
611 strcpy(vi->name, "Green Video Input");
612 }
613 else {
614 strcpy(vi->name, "Composite Video Input");
615 }
616 vi->std = V4L2_STD_PAL;
617 break;
618 case 2:
619 vi->type = V4L2_INPUT_TYPE_CAMERA;
620 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
621 strcpy(vi->name, "Yellow Video Input");
622 }
623 else {
624 strcpy(vi->name, "S-Video Input");
625 }
626 vi->std = V4L2_STD_PAL;
627 break;
628 case 3:
629 vi->type = V4L2_INPUT_TYPE_CAMERA;
630 strcpy(vi->name, "Red Video Input");
631 vi->std = V4L2_STD_PAL;
632 break;
633 }
634 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x",
635 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std);
636 return 0;
637 }
638 case VIDIOC_ENUMSTD:
639 {
640 struct v4l2_standard *e = arg;
641 unsigned int i;
642 int ret;
643
644 i = e->index;
645 if (i >= TVNORMS)
646 return -EINVAL;
647 ret = v4l2_video_std_construct(e, tvnorms[e->index].id,
648 tvnorms[e->index].name);
649 e->index = i;
650 if (ret < 0)
651 return ret;
652 return 0;
653 }
654 case VIDIOC_G_INPUT:
655 {
656 int *input = arg;
657 *input = usbvision->ctl_input;
658 return 0;
659 }
660 case VIDIOC_S_INPUT:
661 {
662 int *input = arg;
663 if ((*input >= usbvision->video_inputs) || (*input < 0) )
664 return -EINVAL;
665 usbvision->ctl_input = *input;
666
667 down(&usbvision->lock);
668 usbvision_muxsel(usbvision, usbvision->ctl_input);
669 usbvision_set_input(usbvision);
670 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
671 up(&usbvision->lock);
672 return 0;
673 }
674 case VIDIOC_G_STD:
675 {
676 v4l2_std_id *id = arg;
677
678 *id = usbvision->tvnorm->id;
679
680 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name);
681 return 0;
682 }
683 case VIDIOC_S_STD:
684 {
685 v4l2_std_id *id = arg;
686 unsigned int i;
687
688 for (i = 0; i < TVNORMS; i++)
689 if (*id == tvnorms[i].id)
690 break;
691 if (i == TVNORMS)
692 for (i = 0; i < TVNORMS; i++)
693 if (*id & tvnorms[i].id)
694 break;
695 if (i == TVNORMS)
696 return -EINVAL;
697
698 down(&usbvision->lock);
699 usbvision->tvnorm = &tvnorms[i];
700
701 call_i2c_clients(usbvision, VIDIOC_S_STD,
702 &usbvision->tvnorm->id);
703
704 up(&usbvision->lock);
705
706 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name);
707 return 0;
708 }
709 case VIDIOC_G_TUNER:
710 {
711 struct v4l2_tuner *vt = arg;
712
713 if (!usbvision->have_tuner || vt->index) // Only tuner 0
714 return -EINVAL;
715 strcpy(vt->name, "Television");
716 /* Let clients fill in the remainder of this struct */
717 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
718
719 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc);
720 return 0;
721 }
722 case VIDIOC_S_TUNER:
723 {
724 struct v4l2_tuner *vt = arg;
725
726 // Only no or one tuner for now
727 if (!usbvision->have_tuner || vt->index)
728 return -EINVAL;
729 /* let clients handle this */
730 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
731
732 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
733 return 0;
734 }
735 case VIDIOC_G_FREQUENCY:
736 {
737 struct v4l2_frequency *freq = arg;
738
739 freq->tuner = 0; // Only one tuner
740 freq->type = V4L2_TUNER_ANALOG_TV;
741 freq->frequency = usbvision->freq;
742 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
743 return 0;
744 }
745 case VIDIOC_S_FREQUENCY:
746 {
747 struct v4l2_frequency *freq = arg;
748
749 // Only no or one tuner for now
750 if (!usbvision->have_tuner || freq->tuner)
751 return -EINVAL;
752
753 usbvision->freq = freq->frequency;
754 call_i2c_clients(usbvision, cmd, freq);
755 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
756 return 0;
757 }
758 case VIDIOC_G_AUDIO:
759 {
760 struct v4l2_audio *v = arg;
761 memset(v,0, sizeof(v));
762 strcpy(v->name, "TV");
763 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
764 return 0;
765 }
766 case VIDIOC_S_AUDIO:
767 {
768 struct v4l2_audio *v = arg;
769 if(v->index) {
770 return -EINVAL;
771 }
772 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
773 return 0;
774 }
775 case VIDIOC_QUERYCTRL:
776 {
777 struct v4l2_queryctrl *ctrl = arg;
778 int id=ctrl->id;
779
780 memset(ctrl,0,sizeof(*ctrl));
781 ctrl->id=id;
782
783 call_i2c_clients(usbvision, cmd, arg);
784
785 if (ctrl->type)
786 return 0;
787 else
788 return -EINVAL;
789
790 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
791 }
792 case VIDIOC_G_CTRL:
793 {
794 struct v4l2_control *ctrl = arg;
795 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
796 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
797 return 0;
798 }
799 case VIDIOC_S_CTRL:
800 {
801 struct v4l2_control *ctrl = arg;
802
803 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
804 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
805 return 0;
806 }
807 case VIDIOC_REQBUFS:
808 {
809 struct v4l2_requestbuffers *vr = arg;
810 int ret;
811
812 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
813
814 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method.
815 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
816 (vr->memory != V4L2_MEMORY_MMAP))
817 return -EINVAL;
818
819 if(usbvision->streaming == Stream_On) {
820 if ((ret = usbvision_stream_interrupt(usbvision)))
821 return ret;
822 }
823
824 usbvision_empty_framequeues(usbvision);
825
826 usbvision->curFrame = NULL;
827
828 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count);
829 return 0;
830 }
831 case VIDIOC_QUERYBUF:
832 {
833 struct v4l2_buffer *vb = arg;
834 struct usbvision_frame *frame;
835
836 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called)
837
838 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
839 return -EINVAL;
840 }
841 if(vb->index>=USBVISION_NUMFRAMES) {
842 return -EINVAL;
843 }
844 // Updating the corresponding frame state
845 vb->flags = 0;
846 frame = &usbvision->frame[vb->index];
847 if(frame->grabstate >= FrameState_Ready)
848 vb->flags |= V4L2_BUF_FLAG_QUEUED;
849 if(frame->grabstate >= FrameState_Done)
850 vb->flags |= V4L2_BUF_FLAG_DONE;
851 if(frame->grabstate == FrameState_Unused)
852 vb->flags |= V4L2_BUF_FLAG_MAPPED;
853 vb->memory = V4L2_MEMORY_MMAP;
854
855 vb->m.offset = vb->index*usbvision->max_frame_size;
856
857 vb->memory = V4L2_MEMORY_MMAP;
858 vb->field = V4L2_FIELD_NONE;
859 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel;
860 vb->timestamp = usbvision->frame[vb->index].timestamp;
861 vb->sequence = usbvision->frame[vb->index].sequence;
862 return 0;
863 }
864 case VIDIOC_QBUF:
865 {
866 struct v4l2_buffer *vb = arg;
867 struct usbvision_frame *frame;
868 unsigned long lock_flags;
869
870 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
871 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
872 return -EINVAL;
873 }
874 if(vb->index>=USBVISION_NUMFRAMES) {
875 return -EINVAL;
876 }
877
878 frame = &usbvision->frame[vb->index];
879
880 if (frame->grabstate != FrameState_Unused) {
881 return -EAGAIN;
882 }
883
884 /* Mark it as ready and enqueue frame */
885 frame->grabstate = FrameState_Ready;
886 frame->scanstate = ScanState_Scanning;
887 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
888
889 vb->flags &= ~V4L2_BUF_FLAG_DONE;
890
891 /* set v4l2_format index */
892 frame->v4l2_format = usbvision->palette;
893
894 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
895 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
896 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
897
898 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index);
899 return 0;
900 }
901 case VIDIOC_DQBUF:
902 {
903 struct v4l2_buffer *vb = arg;
904 int ret;
905 struct usbvision_frame *f;
906 unsigned long lock_flags;
907
908 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
909 return -EINVAL;
910
911 if (list_empty(&(usbvision->outqueue))) {
912 if (usbvision->streaming == Stream_Idle)
913 return -EINVAL;
914 ret = wait_event_interruptible
915 (usbvision->wait_frame,
916 !list_empty(&(usbvision->outqueue)));
917 if (ret)
918 return ret;
919 }
920
921 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
922 f = list_entry(usbvision->outqueue.next,
923 struct usbvision_frame, frame);
924 list_del(usbvision->outqueue.next);
925 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
926
927 f->grabstate = FrameState_Unused;
928
929 vb->memory = V4L2_MEMORY_MMAP;
930 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
931 vb->index = f->index;
932 vb->sequence = f->sequence;
933 vb->timestamp = f->timestamp;
934 vb->field = V4L2_FIELD_NONE;
935 vb->bytesused = f->scanlength;
936
937 return 0;
938 }
939 case VIDIOC_STREAMON:
940 {
941 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
942
943 usbvision->streaming = Stream_On;
944
945 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
946
947 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON");
948
949 return 0;
950 }
951 case VIDIOC_STREAMOFF:
952 {
953 int *type = arg;
954 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
955
956 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
957 return -EINVAL;
958
959 if(usbvision->streaming == Stream_On) {
960 usbvision_stream_interrupt(usbvision);
961 // Stop all video streamings
962 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
963 }
964 usbvision_empty_framequeues(usbvision);
965
966 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF");
967 return 0;
968 }
969 case VIDIOC_ENUM_FMT:
970 {
971 struct v4l2_fmtdesc *vfd = arg;
972
973 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
974 return -EINVAL;
975 }
976 vfd->flags = 0;
977 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
978 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
979 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
980 memset(vfd->reserved, 0, sizeof(vfd->reserved));
981 return 0;
982 }
983 case VIDIOC_G_FMT:
984 {
985 struct v4l2_format *vf = arg;
986
987 switch (vf->type) {
988 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
989 {
990 vf->fmt.pix.width = usbvision->curwidth;
991 vf->fmt.pix.height = usbvision->curheight;
992 vf->fmt.pix.pixelformat = usbvision->palette.format;
993 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel;
994 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
995 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
996 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
997 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s",
998 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
999 return 0;
1000 }
1001 default:
1002 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type);
1003 return -EINVAL;
1004 }
1005 return 0;
1006 }
1007 case VIDIOC_TRY_FMT:
1008 case VIDIOC_S_FMT:
1009 {
1010 struct v4l2_format *vf = arg;
1011 int formatIdx,ret;
1012
1013 switch(vf->type) {
1014 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1015 {
1016 /* Find requested format in available ones */
1017 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1018 if(vf->fmt.pix.pixelformat == 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*usbvision->palette.bytes_per_pixel;
1031 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1032
1033 if(cmd == VIDIOC_TRY_FMT) {
1034 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s",
1035 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
1036 return 0;
1037 }
1038
1039 /* stop io in case it is already in progress */
1040 if(usbvision->streaming == Stream_On) {
1041 if ((ret = usbvision_stream_interrupt(usbvision)))
1042 return ret;
1043 }
1044 usbvision_empty_framequeues(usbvision);
1045
1046 usbvision->curFrame = NULL;
1047
1048 // by now we are committed to the new data...
1049 down(&usbvision->lock);
1050 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1051 up(&usbvision->lock);
1052
1053 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s",
1054 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
1055 return 0;
1056 }
1057 default:
1058 return -EINVAL;
1059 }
1060 }
1061 default:
1062 return -ENOIOCTLCMD;
1063 }
1064 return 0;
1065 }
1066
1067 static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
1068 unsigned int cmd, unsigned long arg)
1069 {
1070 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
1071 }
1072
1073
1074 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1075 size_t count, loff_t *ppos)
1076 {
1077 struct video_device *dev = video_devdata(file);
1078 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1079 int noblock = file->f_flags & O_NONBLOCK;
1080 unsigned long lock_flags;
1081
1082 int ret,i;
1083 struct usbvision_frame *frame;
1084
1085 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
1086
1087 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1088 return -EFAULT;
1089
1090 /* no stream is running, make it running ! */
1091 usbvision->streaming = Stream_On;
1092 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1093
1094 /* First, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
1095 for(i=0;i<USBVISION_NUMFRAMES;i++) {
1096 frame = &usbvision->frame[i];
1097 if(frame->grabstate == FrameState_Unused) {
1098 /* Mark it as ready and enqueue frame */
1099 frame->grabstate = FrameState_Ready;
1100 frame->scanstate = ScanState_Scanning;
1101 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
1102
1103 /* set v4l2_format index */
1104 frame->v4l2_format = usbvision->palette;
1105
1106 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1107 list_add_tail(&frame->frame, &usbvision->inqueue);
1108 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1109 }
1110 }
1111
1112 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1113 if (list_empty(&(usbvision->outqueue))) {
1114 if(noblock)
1115 return -EAGAIN;
1116
1117 ret = wait_event_interruptible
1118 (usbvision->wait_frame,
1119 !list_empty(&(usbvision->outqueue)));
1120 if (ret)
1121 return ret;
1122 }
1123
1124 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1125 frame = list_entry(usbvision->outqueue.next,
1126 struct usbvision_frame, frame);
1127 list_del(usbvision->outqueue.next);
1128 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1129
1130 /* An error returns an empty frame */
1131 if (frame->grabstate == FrameState_Error) {
1132 frame->bytes_read = 0;
1133 return 0;
1134 }
1135
1136 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__,
1137 frame->index, frame->bytes_read, frame->scanlength);
1138
1139 /* copy bytes to user space; we allow for partials reads */
1140 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1141 count = frame->scanlength - frame->bytes_read;
1142
1143 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1144 return -EFAULT;
1145 }
1146
1147 frame->bytes_read += count;
1148 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__,
1149 (unsigned long)count, frame->bytes_read);
1150
1151 // For now, forget the frame if it has not been read in one shot.
1152 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1153 frame->bytes_read = 0;
1154
1155 /* Mark it as available to be used again. */
1156 frame->grabstate = FrameState_Unused;
1157 /* } */
1158
1159 return count;
1160 }
1161
1162 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1163 {
1164 unsigned long size = vma->vm_end - vma->vm_start,
1165 start = vma->vm_start;
1166 void *pos;
1167 u32 i;
1168
1169 struct video_device *dev = video_devdata(file);
1170 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1171
1172 down(&usbvision->lock);
1173
1174 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1175 up(&usbvision->lock);
1176 return -EFAULT;
1177 }
1178
1179 if (!(vma->vm_flags & VM_WRITE) ||
1180 size != PAGE_ALIGN(usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel)) {
1181 up(&usbvision->lock);
1182 return -EINVAL;
1183 }
1184
1185 for (i = 0; i < USBVISION_NUMFRAMES; i++) {
1186 if (((usbvision->max_frame_size*i) >> PAGE_SHIFT) == vma->vm_pgoff)
1187 break;
1188 }
1189 if (i == USBVISION_NUMFRAMES) {
1190 PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range");
1191 up(&usbvision->lock);
1192 return -EINVAL;
1193 }
1194
1195 /* VM_IO is eventually going to replace PageReserved altogether */
1196 vma->vm_flags |= VM_IO;
1197 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1198
1199 pos = usbvision->frame[i].data;
1200 while (size > 0) {
1201
1202 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1203 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1204 up(&usbvision->lock);
1205 return -EAGAIN;
1206 }
1207 start += PAGE_SIZE;
1208 pos += PAGE_SIZE;
1209 size -= PAGE_SIZE;
1210 }
1211
1212 up(&usbvision->lock);
1213 return 0;
1214 }
1215
1216
1217 /*
1218 * Here comes the stuff for radio on usbvision based devices
1219 *
1220 */
1221 static int usbvision_radio_open(struct inode *inode, struct file *file)
1222 {
1223 struct video_device *dev = video_devdata(file);
1224 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1225 struct v4l2_frequency freq;
1226 int errCode = 0;
1227
1228 PDEBUG(DBG_IO, "%s:", __FUNCTION__);
1229
1230 down(&usbvision->lock);
1231
1232 if (usbvision->user) {
1233 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
1234 errCode = -EBUSY;
1235 }
1236 else {
1237 if(PowerOnAtOpen) {
1238 usbvision_reset_powerOffTimer(usbvision);
1239 if (usbvision->power == 0) {
1240 usbvision_power_on(usbvision);
1241 usbvision_init_i2c(usbvision);
1242 }
1243 }
1244
1245 // If so far no errors then we shall start the radio
1246 usbvision->radio = 1;
1247 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1248 freq.frequency = 1517; //SWR3 @ 94.8MHz
1249 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
1250 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1251 usbvision->user++;
1252 }
1253
1254 if (errCode) {
1255 if (PowerOnAtOpen) {
1256 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
1257 usbvision_power_off(usbvision);
1258 usbvision->initialized = 0;
1259 }
1260 }
1261 up(&usbvision->lock);
1262 return errCode;
1263 }
1264
1265
1266 static int usbvision_radio_close(struct inode *inode, struct file *file)
1267 {
1268 struct video_device *dev = video_devdata(file);
1269 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1270 int errCode = 0;
1271
1272 PDEBUG(DBG_IO, "");
1273
1274 down(&usbvision->lock);
1275
1276 usbvision_audio_off(usbvision);
1277 usbvision->radio=0;
1278 usbvision->user--;
1279
1280 if (PowerOnAtOpen) {
1281 usbvision_set_powerOffTimer(usbvision);
1282 usbvision->initialized = 0;
1283 }
1284
1285 up(&usbvision->lock);
1286
1287 if (usbvision->remove_pending) {
1288 info("%s: Final disconnect", __FUNCTION__);
1289 usbvision_release(usbvision);
1290 }
1291
1292
1293 PDEBUG(DBG_IO, "success");
1294
1295 return errCode;
1296 }
1297
1298 static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
1299 unsigned int cmd, void *arg)
1300 {
1301 struct video_device *dev = video_devdata(file);
1302 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1303
1304 if (!USBVISION_IS_OPERATIONAL(usbvision))
1305 return -EIO;
1306
1307 switch (cmd) {
1308 case VIDIOC_QUERYCAP:
1309 {
1310 struct v4l2_capability *vc=arg;
1311
1312 memset(vc, 0, sizeof(*vc));
1313 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
1314 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
1315 sizeof(vc->card));
1316 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
1317 sizeof(vc->bus_info));
1318 vc->version = USBVISION_DRIVER_VERSION;
1319 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
1320 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP");
1321 return 0;
1322 }
1323 case VIDIOC_QUERYCTRL:
1324 {
1325 struct v4l2_queryctrl *ctrl = arg;
1326 int id=ctrl->id;
1327
1328 memset(ctrl,0,sizeof(*ctrl));
1329 ctrl->id=id;
1330
1331 call_i2c_clients(usbvision, cmd, arg);
1332 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
1333
1334 if (ctrl->type)
1335 return 0;
1336 else
1337 return -EINVAL;
1338
1339 }
1340 case VIDIOC_G_CTRL:
1341 {
1342 struct v4l2_control *ctrl = arg;
1343
1344 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
1345 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
1346 return 0;
1347 }
1348 case VIDIOC_S_CTRL:
1349 {
1350 struct v4l2_control *ctrl = arg;
1351
1352 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
1353 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
1354 return 0;
1355 }
1356 case VIDIOC_G_TUNER:
1357 {
1358 struct v4l2_tuner *t = arg;
1359
1360 if (t->index > 0)
1361 return -EINVAL;
1362
1363 memset(t,0,sizeof(*t));
1364 strcpy(t->name, "Radio");
1365 t->type = V4L2_TUNER_RADIO;
1366
1367 /* Let clients fill in the remainder of this struct */
1368 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t);
1369 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc);
1370 return 0;
1371 }
1372 case VIDIOC_S_TUNER:
1373 {
1374 struct v4l2_tuner *vt = arg;
1375
1376 // Only no or one tuner for now
1377 if (!usbvision->have_tuner || vt->index)
1378 return -EINVAL;
1379 /* let clients handle this */
1380 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
1381
1382 PDEBUG(DBG_IO, "VIDIOC_S_TUNER");
1383 return 0;
1384 }
1385 case VIDIOC_G_AUDIO:
1386 {
1387 struct v4l2_audio *a = arg;
1388
1389 memset(a,0,sizeof(*a));
1390 strcpy(a->name,"Radio");
1391 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO");
1392 return 0;
1393 }
1394 case VIDIOC_S_AUDIO:
1395 case VIDIOC_S_INPUT:
1396 case VIDIOC_S_STD:
1397 return 0;
1398
1399 case VIDIOC_G_FREQUENCY:
1400 {
1401 struct v4l2_frequency *f = arg;
1402
1403 memset(f,0,sizeof(*f));
1404
1405 f->type = V4L2_TUNER_RADIO;
1406 f->frequency = usbvision->freq;
1407 call_i2c_clients(usbvision, cmd, f);
1408 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency);
1409
1410 return 0;
1411 }
1412 case VIDIOC_S_FREQUENCY:
1413 {
1414 struct v4l2_frequency *f = arg;
1415
1416 if (f->tuner != 0)
1417 return -EINVAL;
1418 usbvision->freq = f->frequency;
1419 call_i2c_clients(usbvision, cmd, f);
1420 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency);
1421
1422 return 0;
1423 }
1424 default:
1425 {
1426 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd);
1427 return -ENOIOCTLCMD;
1428 }
1429 }
1430 return 0;
1431 }
1432
1433
1434 static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
1435 unsigned int cmd, unsigned long arg)
1436 {
1437 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
1438 }
1439
1440
1441 /*
1442 * Here comes the stuff for vbi on usbvision based devices
1443 *
1444 */
1445 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1446 {
1447 /* TODO */
1448 return -EINVAL;
1449
1450 }
1451
1452 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1453 {
1454 /* TODO */
1455 return -EINVAL;
1456 }
1457
1458 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1459 unsigned int cmd, void *arg)
1460 {
1461 /* TODO */
1462 return -EINVAL;
1463 }
1464
1465 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1466 unsigned int cmd, unsigned long arg)
1467 {
1468 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1469 }
1470
1471
1472 //
1473 // Video registration stuff
1474 //
1475
1476 // Video template
1477 static const struct file_operations usbvision_fops = {
1478 .owner = THIS_MODULE,
1479 .open = usbvision_v4l2_open,
1480 .release = usbvision_v4l2_close,
1481 .read = usbvision_v4l2_read,
1482 .mmap = usbvision_v4l2_mmap,
1483 .ioctl = usbvision_v4l2_ioctl,
1484 .llseek = no_llseek,
1485 };
1486 static struct video_device usbvision_video_template = {
1487 .owner = THIS_MODULE,
1488 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
1489 .hardware = VID_HARDWARE_USBVISION,
1490 .fops = &usbvision_fops,
1491 .name = "usbvision-video",
1492 .release = video_device_release,
1493 .minor = -1,
1494 };
1495
1496
1497 // Radio template
1498 static const struct file_operations usbvision_radio_fops = {
1499 .owner = THIS_MODULE,
1500 .open = usbvision_radio_open,
1501 .release = usbvision_radio_close,
1502 .ioctl = usbvision_radio_ioctl,
1503 .llseek = no_llseek,
1504 };
1505
1506 static struct video_device usbvision_radio_template=
1507 {
1508 .owner = THIS_MODULE,
1509 .type = VID_TYPE_TUNER,
1510 .hardware = VID_HARDWARE_USBVISION,
1511 .fops = &usbvision_radio_fops,
1512 .release = video_device_release,
1513 .name = "usbvision-radio",
1514 .minor = -1,
1515 };
1516
1517
1518 // vbi template
1519 static const struct file_operations usbvision_vbi_fops = {
1520 .owner = THIS_MODULE,
1521 .open = usbvision_vbi_open,
1522 .release = usbvision_vbi_close,
1523 .ioctl = usbvision_vbi_ioctl,
1524 .llseek = no_llseek,
1525 };
1526
1527 static struct video_device usbvision_vbi_template=
1528 {
1529 .owner = THIS_MODULE,
1530 .type = VID_TYPE_TUNER,
1531 .hardware = VID_HARDWARE_USBVISION,
1532 .fops = &usbvision_vbi_fops,
1533 .release = video_device_release,
1534 .name = "usbvision-vbi",
1535 .minor = -1,
1536 };
1537
1538
1539 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1540 struct video_device *vdev_template,
1541 char *name)
1542 {
1543 struct usb_device *usb_dev = usbvision->dev;
1544 struct video_device *vdev;
1545
1546 if (usb_dev == NULL) {
1547 err("%s: usbvision->dev is not set", __FUNCTION__);
1548 return NULL;
1549 }
1550
1551 vdev = video_device_alloc();
1552 if (NULL == vdev) {
1553 return NULL;
1554 }
1555 *vdev = *vdev_template;
1556 // vdev->minor = -1;
1557 vdev->dev = &usb_dev->dev;
1558 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1559 video_set_drvdata(vdev, usbvision);
1560 return vdev;
1561 }
1562
1563 // unregister video4linux devices
1564 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1565 {
1566 // vbi Device:
1567 if (usbvision->vbi) {
1568 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
1569 if (usbvision->vbi->minor != -1) {
1570 video_unregister_device(usbvision->vbi);
1571 }
1572 else {
1573 video_device_release(usbvision->vbi);
1574 }
1575 usbvision->vbi = NULL;
1576 }
1577
1578 // Radio Device:
1579 if (usbvision->rdev) {
1580 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
1581 if (usbvision->rdev->minor != -1) {
1582 video_unregister_device(usbvision->rdev);
1583 }
1584 else {
1585 video_device_release(usbvision->rdev);
1586 }
1587 usbvision->rdev = NULL;
1588 }
1589
1590 // Video Device:
1591 if (usbvision->vdev) {
1592 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
1593 if (usbvision->vdev->minor != -1) {
1594 video_unregister_device(usbvision->vdev);
1595 }
1596 else {
1597 video_device_release(usbvision->vdev);
1598 }
1599 usbvision->vdev = NULL;
1600 }
1601 }
1602
1603 // register video4linux devices
1604 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1605 {
1606 // Video Device:
1607 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
1608 if (usbvision->vdev == NULL) {
1609 goto err_exit;
1610 }
1611 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
1612 goto err_exit;
1613 }
1614 info("USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]", usbvision->nr,usbvision->vdev->minor & 0x1f);
1615
1616 // Radio Device:
1617 if (usbvision_device_data[usbvision->DevModel].Radio) {
1618 // usbvision has radio
1619 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
1620 if (usbvision->rdev == NULL) {
1621 goto err_exit;
1622 }
1623 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
1624 goto err_exit;
1625 }
1626 info("USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]", usbvision->nr, usbvision->rdev->minor & 0x1f);
1627 }
1628 // vbi Device:
1629 if (usbvision_device_data[usbvision->DevModel].vbi) {
1630 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
1631 if (usbvision->vdev == NULL) {
1632 goto err_exit;
1633 }
1634 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
1635 goto err_exit;
1636 }
1637 info("USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)", usbvision->nr,usbvision->vbi->minor & 0x1f);
1638 }
1639 // all done
1640 return 0;
1641
1642 err_exit:
1643 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1644 usbvision_unregister_video(usbvision);
1645 return -1;
1646 }
1647
1648 /*
1649 * usbvision_alloc()
1650 *
1651 * This code allocates the struct usb_usbvision. It is filled with default values.
1652 *
1653 * Returns NULL on error, a pointer to usb_usbvision else.
1654 *
1655 */
1656 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1657 {
1658 struct usb_usbvision *usbvision;
1659
1660 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
1661 goto err_exit;
1662 }
1663
1664 usbvision->dev = dev;
1665
1666 init_MUTEX(&usbvision->lock); /* to 1 == available */
1667
1668 // prepare control urb for control messages during interrupts
1669 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1670 if (usbvision->ctrlUrb == NULL) {
1671 goto err_exit;
1672 }
1673 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1674 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
1675
1676 usbvision_init_powerOffTimer(usbvision);
1677
1678 return usbvision;
1679
1680 err_exit:
1681 if (usbvision && usbvision->ctrlUrb) {
1682 usb_free_urb(usbvision->ctrlUrb);
1683 }
1684 if (usbvision) {
1685 kfree(usbvision);
1686 }
1687 return NULL;
1688 }
1689
1690 /*
1691 * usbvision_release()
1692 *
1693 * This code does final release of struct usb_usbvision. This happens
1694 * after the device is disconnected -and- all clients closed their files.
1695 *
1696 */
1697 static void usbvision_release(struct usb_usbvision *usbvision)
1698 {
1699 PDEBUG(DBG_PROBE, "");
1700
1701 down(&usbvision->lock);
1702
1703 usbvision_reset_powerOffTimer(usbvision);
1704
1705 usbvision->initialized = 0;
1706
1707 up(&usbvision->lock);
1708
1709 usbvision_remove_sysfs(usbvision->vdev);
1710 usbvision_unregister_video(usbvision);
1711
1712 if (usbvision->ctrlUrb) {
1713 usb_free_urb(usbvision->ctrlUrb);
1714 }
1715
1716 kfree(usbvision);
1717
1718 PDEBUG(DBG_PROBE, "success");
1719 }
1720
1721
1722 /******************************** usb interface *****************************************/
1723
1724 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1725 {
1726 int model,i;
1727
1728 if (usbvision == NULL)
1729 return;
1730
1731 model = usbvision->DevModel;
1732 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1733
1734 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) {
1735 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff;
1736 } else {
1737 usbvision->Vin_Reg2_Preset = 0;
1738 }
1739
1740 for (i = 0; i < TVNORMS; i++)
1741 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode)
1742 break;
1743 if (i == TVNORMS)
1744 i = 0;
1745 usbvision->tvnorm = &tvnorms[i]; /* set default norm */
1746
1747 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1748 usbvision->ctl_input = 0;
1749
1750 /* This should be here to make i2c clients to be able to register */
1751 usbvision_audio_off(usbvision); //first switch off audio
1752 if (!PowerOnAtOpen) {
1753 usbvision_power_on(usbvision); //and then power up the noisy tuner
1754 usbvision_init_i2c(usbvision);
1755 }
1756 }
1757
1758 /*
1759 * usbvision_probe()
1760 *
1761 * This procedure queries device descriptor and accepts the interface
1762 * if it looks like USBVISION video device
1763 *
1764 */
1765 static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid)
1766 {
1767 struct usb_device *dev = interface_to_usbdev(intf);
1768 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1769 const struct usb_host_interface *interface;
1770 struct usb_usbvision *usbvision = NULL;
1771 const struct usb_endpoint_descriptor *endpoint;
1772 int model;
1773
1774 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1775 dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum);
1776 /* Is it an USBVISION video dev? */
1777 model = 0;
1778 for(model = 0; usbvision_device_data[model].idVendor; model++) {
1779 if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) {
1780 continue;
1781 }
1782 if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) {
1783 continue;
1784 }
1785
1786 info("%s: %s found", __FUNCTION__, usbvision_device_data[model].ModelString);
1787 break;
1788 }
1789
1790 if (usbvision_device_data[model].idVendor == 0) {
1791 return -ENODEV; //no matching device
1792 }
1793 if (usbvision_device_data[model].Interface >= 0) {
1794 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1795 }
1796 else {
1797 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1798 }
1799 endpoint = &interface->endpoint[1].desc;
1800 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
1801 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
1802 err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes);
1803 return -ENODEV;
1804 }
1805 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
1806 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
1807 return -ENODEV;
1808 }
1809
1810 usb_get_dev(dev);
1811
1812 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1813 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
1814 return -ENOMEM;
1815 }
1816 if (dev->descriptor.bNumConfigurations > 1) {
1817 usbvision->bridgeType = BRIDGE_NT1004;
1818 }
1819 else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") {
1820 usbvision->bridgeType = BRIDGE_NT1005;
1821 }
1822 else {
1823 usbvision->bridgeType = BRIDGE_NT1003;
1824 }
1825 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1826
1827 down(&usbvision->lock);
1828
1829 usbvision->nr = usbvision_nr++;
1830
1831 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1832 if (usbvision->have_tuner) {
1833 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1834 }
1835
1836 usbvision->tuner_addr = ADDR_UNSET;
1837
1838 usbvision->DevModel = model;
1839 usbvision->remove_pending = 0;
1840 usbvision->iface = ifnum;
1841 usbvision->ifaceAltInactive = 0;
1842 usbvision->ifaceAltActive = 1;
1843 usbvision->video_endp = endpoint->bEndpointAddress;
1844 usbvision->isocPacketSize = 0;
1845 usbvision->usb_bandwidth = 0;
1846 usbvision->user = 0;
1847 usbvision->streaming = Stream_Off;
1848 usbvision_register_video(usbvision);
1849 usbvision_configure_video(usbvision);
1850 up(&usbvision->lock);
1851
1852
1853 usb_set_intfdata (intf, usbvision);
1854 usbvision_create_sysfs(usbvision->vdev);
1855
1856 PDEBUG(DBG_PROBE, "success");
1857 return 0;
1858 }
1859
1860
1861 /*
1862 * usbvision_disconnect()
1863 *
1864 * This procedure stops all driver activity, deallocates interface-private
1865 * structure (pointed by 'ptr') and after that driver should be removable
1866 * with no ill consequences.
1867 *
1868 */
1869 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1870 {
1871 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1872
1873 PDEBUG(DBG_PROBE, "");
1874
1875 if (usbvision == NULL) {
1876 err("%s: usb_get_intfdata() failed", __FUNCTION__);
1877 return;
1878 }
1879 usb_set_intfdata (intf, NULL);
1880
1881 down(&usbvision->lock);
1882
1883 // At this time we ask to cancel outstanding URBs
1884 usbvision_stop_isoc(usbvision);
1885
1886 if (usbvision->power) {
1887 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
1888 usbvision_power_off(usbvision);
1889 }
1890 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1891
1892 usb_put_dev(usbvision->dev);
1893 usbvision->dev = NULL; // USB device is no more
1894
1895 up(&usbvision->lock);
1896
1897 if (usbvision->user) {
1898 info("%s: In use, disconnect pending", __FUNCTION__);
1899 wake_up_interruptible(&usbvision->wait_frame);
1900 wake_up_interruptible(&usbvision->wait_stream);
1901 }
1902 else {
1903 usbvision_release(usbvision);
1904 }
1905
1906 PDEBUG(DBG_PROBE, "success");
1907
1908 }
1909
1910 static struct usb_driver usbvision_driver = {
1911 .name = "usbvision",
1912 .id_table = usbvision_table,
1913 .probe = usbvision_probe,
1914 .disconnect = usbvision_disconnect
1915 };
1916
1917 /*
1918 * customdevice_process()
1919 *
1920 * This procedure preprocesses CustomDevice parameter if any
1921 *
1922 */
1923 static void customdevice_process(void)
1924 {
1925 usbvision_device_data[0]=usbvision_device_data[1];
1926 usbvision_table[0]=usbvision_table[1];
1927
1928 if(CustomDevice)
1929 {
1930 char *parse=CustomDevice;
1931
1932 PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice);
1933
1934 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1"
1935 usbvision_device_data[0].idVendor;
1936 usbvision_device_data[0].idProduct;
1937 usbvision_device_data[0].Interface;
1938 usbvision_device_data[0].Codec;
1939 usbvision_device_data[0].VideoChannels;
1940 usbvision_device_data[0].VideoNorm;
1941 usbvision_device_data[0].AudioChannels;
1942 usbvision_device_data[0].Radio;
1943 usbvision_device_data[0].Tuner;
1944 usbvision_device_data[0].TunerType;
1945 usbvision_device_data[0].Vin_Reg1;
1946 usbvision_device_data[0].Vin_Reg2;
1947 usbvision_device_data[0].X_Offset;
1948 usbvision_device_data[0].Y_Offset;
1949 usbvision_device_data[0].Dvi_yuv;
1950 usbvision_device_data[0].ModelString;
1951 */
1952
1953 rmspace(parse);
1954 usbvision_device_data[0].ModelString="USBVISION Custom Device";
1955
1956 parse+=2;
1957 sscanf(parse,"%x",&usbvision_device_data[0].idVendor);
1958 goto2next(parse);
1959 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor);
1960 parse+=2;
1961 sscanf(parse,"%x",&usbvision_device_data[0].idProduct);
1962 goto2next(parse);
1963 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct);
1964 sscanf(parse,"%d",&usbvision_device_data[0].Interface);
1965 goto2next(parse);
1966 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface);
1967 sscanf(parse,"%d",&usbvision_device_data[0].Codec);
1968 goto2next(parse);
1969 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec);
1970 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels);
1971 goto2next(parse);
1972 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels);
1973
1974 switch(*parse)
1975 {
1976 case 'P':
1977 PDEBUG(DBG_PROBE, "VideoNorm=PAL");
1978 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL;
1979 break;
1980
1981 case 'S':
1982 PDEBUG(DBG_PROBE, "VideoNorm=SECAM");
1983 usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM;
1984 break;
1985
1986 case 'N':
1987 PDEBUG(DBG_PROBE, "VideoNorm=NTSC");
1988 usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC;
1989 break;
1990
1991 default:
1992 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)");
1993 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL;
1994 break;
1995 }
1996 goto2next(parse);
1997
1998 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels);
1999 goto2next(parse);
2000 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels);
2001 sscanf(parse,"%d",&usbvision_device_data[0].Radio);
2002 goto2next(parse);
2003 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio);
2004 sscanf(parse,"%d",&usbvision_device_data[0].Tuner);
2005 goto2next(parse);
2006 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner);
2007 sscanf(parse,"%d",&usbvision_device_data[0].TunerType);
2008 goto2next(parse);
2009 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType);
2010 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1);
2011 goto2next(parse);
2012 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1);
2013 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2);
2014 goto2next(parse);
2015 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2);
2016 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset);
2017 goto2next(parse);
2018 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset);
2019 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset);
2020 goto2next(parse);
2021 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset);
2022 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv);
2023 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv);
2024
2025 //add to usbvision_table also
2026 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE;
2027 usbvision_table[0].idVendor=usbvision_device_data[0].idVendor;
2028 usbvision_table[0].idProduct=usbvision_device_data[0].idProduct;
2029
2030 }
2031 }
2032
2033
2034
2035 /*
2036 * usbvision_init()
2037 *
2038 * This code is run to initialize the driver.
2039 *
2040 */
2041 static int __init usbvision_init(void)
2042 {
2043 int errCode;
2044
2045 PDEBUG(DBG_PROBE, "");
2046
2047 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]");
2048 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
2049 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
2050 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
2051
2052 /* disable planar mode support unless compression enabled */
2053 if (isocMode != ISOC_MODE_COMPRESS ) {
2054 // FIXME : not the right way to set supported flag
2055 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
2056 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
2057 }
2058
2059 customdevice_process();
2060
2061 errCode = usb_register(&usbvision_driver);
2062
2063 if (errCode == 0) {
2064 info(DRIVER_DESC " : " USBVISION_VERSION_STRING);
2065 PDEBUG(DBG_PROBE, "success");
2066 }
2067 return errCode;
2068 }
2069
2070 static void __exit usbvision_exit(void)
2071 {
2072 PDEBUG(DBG_PROBE, "");
2073
2074 usb_deregister(&usbvision_driver);
2075 PDEBUG(DBG_PROBE, "success");
2076 }
2077
2078 module_init(usbvision_init);
2079 module_exit(usbvision_exit);
2080
2081 /*
2082 * Overrides for Emacs so that we follow Linus's tabbing style.
2083 * ---------------------------------------------------------------------------
2084 * Local variables:
2085 * c-basic-offset: 8
2086 * End:
2087 */
linux 2.6 git repository for openrd