projects / deliverable / linux.git / blob
? search:


49281ffa84cb541fea4c41f89b62e8971b95e154
[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. 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 #include "usbvision-cards.h"
80
81 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>, Dwaine Garden <DwaineGarden@rogers.com>"
82 #define DRIVER_NAME "usbvision"
83 #define DRIVER_ALIAS "USBVision"
84 #define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
85 #define DRIVER_LICENSE "GPL"
86 #define USBVISION_DRIVER_VERSION_MAJOR 0
87 #define USBVISION_DRIVER_VERSION_MINOR 9
88 #define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
89 #define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,USBVISION_DRIVER_VERSION_MINOR,USBVISION_DRIVER_VERSION_PATCHLEVEL)
90 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR) "." __stringify(USBVISION_DRIVER_VERSION_MINOR) "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
91
92 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
93
94
95 #ifdef USBVISION_DEBUG
96 #define PDEBUG(level, fmt, args...) \
97 if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
98 #else
99 #define PDEBUG(level, fmt, args...) do {} while(0)
100 #endif
101
102 #define DBG_IOCTL 1<<0
103 #define DBG_IO 1<<1
104 #define DBG_PROBE 1<<2
105 #define DBG_MMAP 1<<3
106
107 //String operations
108 #define rmspace(str) while(*str==' ') str++;
109 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
110
111
112 static int usbvision_nr = 0; // sequential number of usbvision device
113
114 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
115 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
116 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
117 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
118 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
119 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
120 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
121 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
122 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
123 };
124
125 /* supported tv norms */
126 static struct usbvision_tvnorm tvnorms[] = {
127 {
128 .name = "PAL",
129 .id = V4L2_STD_PAL,
130 }, {
131 .name = "NTSC",
132 .id = V4L2_STD_NTSC,
133 }, {
134 .name = "SECAM",
135 .id = V4L2_STD_SECAM,
136 }, {
137 .name = "PAL-M",
138 .id = V4L2_STD_PAL_M,
139 }
140 };
141
142 #define TVNORMS ARRAY_SIZE(tvnorms)
143
144 // Function prototypes
145 static void usbvision_release(struct usb_usbvision *usbvision);
146
147 // Default initalization of device driver parameters
148 static int isocMode = ISOC_MODE_COMPRESS; // Set the default format for ISOC endpoint
149 static int video_debug = 0; // Set the default Debug Mode of the device driver
150 static int PowerOnAtOpen = 1; // Set the default device to power on at startup
151 static int video_nr = -1; // Sequential Number of Video Device
152 static int radio_nr = -1; // Sequential Number of Radio Device
153 static int vbi_nr = -1; // Sequential Number of VBI Device
154 static char *CustomDevice=NULL; // Set as nothing....
155
156 // Grab parameters for the device driver
157
158 #if defined(module_param) // Showing parameters under SYSFS
159 module_param(isocMode, int, 0444);
160 module_param(video_debug, int, 0444);
161 module_param(PowerOnAtOpen, int, 0444);
162 module_param(video_nr, int, 0444);
163 module_param(radio_nr, int, 0444);
164 module_param(vbi_nr, int, 0444);
165 module_param(CustomDevice, charp, 0444);
166 #else // Old Style
167 MODULE_PARAM(isocMode, "i");
168 MODULE_PARM(video_debug, "i"); // Grab the Debug Mode of the device driver
169 MODULE_PARM(adjustCompression, "i"); // Grab the compression to be adaptive
170 MODULE_PARM(PowerOnAtOpen, "i"); // Grab the device to power on at startup
171 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.
172 MODULE_PARM(video_nr, "i"); // video_nr option allows to specify a certain /dev/videoX device (like /dev/video0 or /dev/video1 ...)
173 MODULE_PARM(radio_nr, "i"); // radio_nr option allows to specify a certain /dev/radioX device (like /dev/radio0 or /dev/radio1 ...)
174 MODULE_PARM(vbi_nr, "i"); // vbi_nr option allows to specify a certain /dev/vbiX device (like /dev/vbi0 or /dev/vbi1 ...)
175 MODULE_PARM(CustomDevice, "s"); // .... CustomDevice
176 #endif
177
178 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
179 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
180 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
181 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
182 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
183 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
184 MODULE_PARM_DESC(CustomDevice, " Define the fine tuning parameters for the device. Default: null");
185
186
187 // Misc stuff
188 MODULE_AUTHOR(DRIVER_AUTHOR);
189 MODULE_DESCRIPTION(DRIVER_DESC);
190 MODULE_LICENSE(DRIVER_LICENSE);
191 MODULE_VERSION(USBVISION_VERSION_STRING);
192 MODULE_ALIAS(DRIVER_ALIAS);
193
194
195 /****************************************************************************************/
196 /* SYSFS Code - Copied from the stv680.c usb module. */
197 /* Device information is located at /sys/class/video4linux/video0 */
198 /* Device parameters information is located at /sys/module/usbvision */
199 /* Device USB Information is located at /sys/bus/usb/drivers/USBVision Video Grabber */
200 /****************************************************************************************/
201
202
203 #define YES_NO(x) ((x) ? "Yes" : "No")
204
205 static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
206 {
207 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
208 return video_get_drvdata(vdev);
209 }
210
211 static ssize_t show_version(struct class_device *cd, char *buf)
212 {
213 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
214 }
215 static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
216
217 static ssize_t show_model(struct class_device *cd, char *buf)
218 {
219 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
220 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
221 return sprintf(buf, "%s\n", usbvision_device_data[usbvision->DevModel].ModelString);
222 }
223 static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
224
225 static ssize_t show_hue(struct class_device *cd, char *buf)
226 {
227 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
228 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
229 struct v4l2_control ctrl;
230 ctrl.id = V4L2_CID_HUE;
231 ctrl.value = 0;
232 if(usbvision->user)
233 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
234 return sprintf(buf, "%d\n", ctrl.value);
235 }
236 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
237
238 static ssize_t show_contrast(struct class_device *cd, char *buf)
239 {
240 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
241 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
242 struct v4l2_control ctrl;
243 ctrl.id = V4L2_CID_CONTRAST;
244 ctrl.value = 0;
245 if(usbvision->user)
246 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
247 return sprintf(buf, "%d\n", ctrl.value);
248 }
249 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
250
251 static ssize_t show_brightness(struct class_device *cd, char *buf)
252 {
253 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
254 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
255 struct v4l2_control ctrl;
256 ctrl.id = V4L2_CID_BRIGHTNESS;
257 ctrl.value = 0;
258 if(usbvision->user)
259 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
260 return sprintf(buf, "%d\n", ctrl.value);
261 }
262 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
263
264 static ssize_t show_saturation(struct class_device *cd, char *buf)
265 {
266 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
267 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
268 struct v4l2_control ctrl;
269 ctrl.id = V4L2_CID_SATURATION;
270 ctrl.value = 0;
271 if(usbvision->user)
272 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
273 return sprintf(buf, "%d\n", ctrl.value);
274 }
275 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
276
277 static ssize_t show_streaming(struct class_device *cd, char *buf)
278 {
279 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
280 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
281 return sprintf(buf, "%s\n", YES_NO(usbvision->streaming==Stream_On?1:0));
282 }
283 static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
284
285 static ssize_t show_compression(struct class_device *cd, char *buf)
286 {
287 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
288 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
289 return sprintf(buf, "%s\n", YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
290 }
291 static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
292
293 static ssize_t show_device_bridge(struct class_device *cd, char *buf)
294 {
295 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
296 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
297 return sprintf(buf, "%d\n", usbvision->bridgeType);
298 }
299 static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
300
301 static void usbvision_create_sysfs(struct video_device *vdev)
302 {
303 int res;
304 if (!vdev)
305 return;
306 do {
307 res=class_device_create_file(&vdev->class_dev,
308 &class_device_attr_version);
309 if (res<0)
310 break;
311 res=class_device_create_file(&vdev->class_dev,
312 &class_device_attr_model);
313 if (res<0)
314 break;
315 res=class_device_create_file(&vdev->class_dev,
316 &class_device_attr_hue);
317 if (res<0)
318 break;
319 res=class_device_create_file(&vdev->class_dev,
320 &class_device_attr_contrast);
321 if (res<0)
322 break;
323 res=class_device_create_file(&vdev->class_dev,
324 &class_device_attr_brightness);
325 if (res<0)
326 break;
327 res=class_device_create_file(&vdev->class_dev,
328 &class_device_attr_saturation);
329 if (res<0)
330 break;
331 res=class_device_create_file(&vdev->class_dev,
332 &class_device_attr_streaming);
333 if (res<0)
334 break;
335 res=class_device_create_file(&vdev->class_dev,
336 &class_device_attr_compression);
337 if (res<0)
338 break;
339 res=class_device_create_file(&vdev->class_dev,
340 &class_device_attr_bridge);
341 if (res>=0)
342 return;
343 } while (0);
344
345 err("%s error: %d\n", __FUNCTION__, res);
346 }
347
348 static void usbvision_remove_sysfs(struct video_device *vdev)
349 {
350 if (vdev) {
351 class_device_remove_file(&vdev->class_dev,
352 &class_device_attr_version);
353 class_device_remove_file(&vdev->class_dev,
354 &class_device_attr_model);
355 class_device_remove_file(&vdev->class_dev,
356 &class_device_attr_hue);
357 class_device_remove_file(&vdev->class_dev,
358 &class_device_attr_contrast);
359 class_device_remove_file(&vdev->class_dev,
360 &class_device_attr_brightness);
361 class_device_remove_file(&vdev->class_dev,
362 &class_device_attr_saturation);
363 class_device_remove_file(&vdev->class_dev,
364 &class_device_attr_streaming);
365 class_device_remove_file(&vdev->class_dev,
366 &class_device_attr_compression);
367 class_device_remove_file(&vdev->class_dev,
368 &class_device_attr_bridge);
369 }
370 }
371
372
373 /*
374 * usbvision_open()
375 *
376 * This is part of Video 4 Linux API. The driver can be opened by one
377 * client only (checks internal counter 'usbvision->user'). The procedure
378 * then allocates buffers needed for video processing.
379 *
380 */
381 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
382 {
383 struct video_device *dev = video_devdata(file);
384 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
385 int errCode = 0;
386
387 PDEBUG(DBG_IO, "open");
388
389
390 usbvision_reset_powerOffTimer(usbvision);
391
392 if (usbvision->user)
393 errCode = -EBUSY;
394 else {
395 /* Allocate memory for the scratch ring buffer */
396 errCode = usbvision_scratch_alloc(usbvision);
397 if (isocMode==ISOC_MODE_COMPRESS) {
398 /* Allocate intermediate decompression buffers only if needed */
399 errCode = usbvision_decompress_alloc(usbvision);
400 }
401 if (errCode) {
402 /* Deallocate all buffers if trouble */
403 usbvision_scratch_free(usbvision);
404 usbvision_decompress_free(usbvision);
405 }
406 }
407
408 /* If so far no errors then we shall start the camera */
409 if (!errCode) {
410 down(&usbvision->lock);
411 if (usbvision->power == 0) {
412 usbvision_power_on(usbvision);
413 usbvision_init_i2c(usbvision);
414 }
415
416 /* Send init sequence only once, it's large! */
417 if (!usbvision->initialized) {
418 int setup_ok = 0;
419 setup_ok = usbvision_setup(usbvision,isocMode);
420 if (setup_ok)
421 usbvision->initialized = 1;
422 else
423 errCode = -EBUSY;
424 }
425
426 if (!errCode) {
427 usbvision_begin_streaming(usbvision);
428 errCode = usbvision_init_isoc(usbvision);
429 /* device needs to be initialized before isoc transfer */
430 usbvision_muxsel(usbvision,0);
431 usbvision->user++;
432 }
433 else {
434 if (PowerOnAtOpen) {
435 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
436 usbvision_power_off(usbvision);
437 usbvision->initialized = 0;
438 }
439 }
440 up(&usbvision->lock);
441 }
442
443 if (errCode) {
444 }
445
446 /* prepare queues */
447 usbvision_empty_framequeues(usbvision);
448
449 PDEBUG(DBG_IO, "success");
450 return errCode;
451 }
452
453 /*
454 * usbvision_v4l2_close()
455 *
456 * This is part of Video 4 Linux API. The procedure
457 * stops streaming and deallocates all buffers that were earlier
458 * allocated in usbvision_v4l2_open().
459 *
460 */
461 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
462 {
463 struct video_device *dev = video_devdata(file);
464 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
465
466 PDEBUG(DBG_IO, "close");
467 down(&usbvision->lock);
468
469 usbvision_audio_off(usbvision);
470 usbvision_restart_isoc(usbvision);
471 usbvision_stop_isoc(usbvision);
472
473 usbvision_decompress_free(usbvision);
474 usbvision_frames_free(usbvision);
475 usbvision_empty_framequeues(usbvision);
476 usbvision_scratch_free(usbvision);
477
478 usbvision->user--;
479
480 if (PowerOnAtOpen) {
481 /* power off in a little while to avoid off/on every close/open short sequences */
482 usbvision_set_powerOffTimer(usbvision);
483 usbvision->initialized = 0;
484 }
485
486 up(&usbvision->lock);
487
488 if (usbvision->remove_pending) {
489 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
490 usbvision_release(usbvision);
491 }
492
493 PDEBUG(DBG_IO, "success");
494
495
496 return 0;
497 }
498
499
500 /*
501 * usbvision_ioctl()
502 *
503 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
504 *
505 */
506 static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
507 unsigned int cmd, void *arg)
508 {
509 struct video_device *dev = video_devdata(file);
510 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
511
512 if (!USBVISION_IS_OPERATIONAL(usbvision))
513 return -EFAULT;
514
515 switch (cmd) {
516
517 #ifdef CONFIG_VIDEO_ADV_DEBUG
518 /* ioctls to allow direct acces to the NT100x registers */
519 case VIDIOC_DBG_G_REGISTER:
520 case VIDIOC_DBG_S_REGISTER:
521 {
522 struct v4l2_register *reg = arg;
523 int errCode;
524
525 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
526 return -EINVAL;
527 if (!capable(CAP_SYS_ADMIN))
528 return -EPERM;
529 /* NT100x has a 8-bit register space */
530 if (cmd == VIDIOC_DBG_G_REGISTER)
531 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
532 else
533 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
534 if (errCode < 0) {
535 err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__,
536 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode);
537 return errCode;
538 }
539 if (cmd == VIDIOC_DBG_S_REGISTER)
540 reg->val = (u8)errCode;
541
542 PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X",
543 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S',
544 (unsigned int)reg->reg, (unsigned int)reg->val);
545 return 0;
546 }
547 #endif
548 case VIDIOC_QUERYCAP:
549 {
550 struct v4l2_capability *vc=arg;
551
552 memset(vc, 0, sizeof(*vc));
553 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
554 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
555 sizeof(vc->card));
556 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
557 sizeof(vc->bus_info));
558 vc->version = USBVISION_DRIVER_VERSION;
559 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
560 V4L2_CAP_AUDIO |
561 V4L2_CAP_READWRITE |
562 V4L2_CAP_STREAMING |
563 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
564 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
565 return 0;
566 }
567 case VIDIOC_ENUMINPUT:
568 {
569 struct v4l2_input *vi = arg;
570 int chan;
571
572 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
573 return -EINVAL;
574 if (usbvision->have_tuner) {
575 chan = vi->index;
576 }
577 else {
578 chan = vi->index + 1; //skip Television string
579 }
580 switch(chan) {
581 case 0:
582 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
583 strcpy(vi->name, "White Video Input");
584 }
585 else {
586 strcpy(vi->name, "Television");
587 vi->type = V4L2_INPUT_TYPE_TUNER;
588 vi->audioset = 1;
589 vi->tuner = chan;
590 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
591 }
592 break;
593 case 1:
594 vi->type = V4L2_INPUT_TYPE_CAMERA;
595 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
596 strcpy(vi->name, "Green Video Input");
597 }
598 else {
599 strcpy(vi->name, "Composite Video Input");
600 }
601 vi->std = V4L2_STD_PAL;
602 break;
603 case 2:
604 vi->type = V4L2_INPUT_TYPE_CAMERA;
605 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
606 strcpy(vi->name, "Yellow Video Input");
607 }
608 else {
609 strcpy(vi->name, "S-Video Input");
610 }
611 vi->std = V4L2_STD_PAL;
612 break;
613 case 3:
614 vi->type = V4L2_INPUT_TYPE_CAMERA;
615 strcpy(vi->name, "Red Video Input");
616 vi->std = V4L2_STD_PAL;
617 break;
618 }
619 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x",
620 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std);
621 return 0;
622 }
623 case VIDIOC_ENUMSTD:
624 {
625 struct v4l2_standard *e = arg;
626 unsigned int i;
627 int ret;
628
629 i = e->index;
630 if (i >= TVNORMS)
631 return -EINVAL;
632 ret = v4l2_video_std_construct(e, tvnorms[e->index].id,
633 tvnorms[e->index].name);
634 e->index = i;
635 if (ret < 0)
636 return ret;
637 return 0;
638 }
639 case VIDIOC_G_INPUT:
640 {
641 int *input = arg;
642 *input = usbvision->ctl_input;
643 return 0;
644 }
645 case VIDIOC_S_INPUT:
646 {
647 int *input = arg;
648 if ((*input >= usbvision->video_inputs) || (*input < 0) )
649 return -EINVAL;
650 usbvision->ctl_input = *input;
651
652 down(&usbvision->lock);
653 usbvision_muxsel(usbvision, usbvision->ctl_input);
654 usbvision_set_input(usbvision);
655 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
656 up(&usbvision->lock);
657 return 0;
658 }
659 case VIDIOC_G_STD:
660 {
661 v4l2_std_id *id = arg;
662
663 *id = usbvision->tvnorm->id;
664
665 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name);
666 return 0;
667 }
668 case VIDIOC_S_STD:
669 {
670 v4l2_std_id *id = arg;
671 unsigned int i;
672
673 for (i = 0; i < TVNORMS; i++)
674 if (*id == tvnorms[i].id)
675 break;
676 if (i == TVNORMS)
677 for (i = 0; i < TVNORMS; i++)
678 if (*id & tvnorms[i].id)
679 break;
680 if (i == TVNORMS)
681 return -EINVAL;
682
683 down(&usbvision->lock);
684 usbvision->tvnorm = &tvnorms[i];
685
686 call_i2c_clients(usbvision, VIDIOC_S_STD,
687 &usbvision->tvnorm->id);
688
689 up(&usbvision->lock);
690
691 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name);
692 return 0;
693 }
694 case VIDIOC_G_TUNER:
695 {
696 struct v4l2_tuner *vt = arg;
697
698 if (!usbvision->have_tuner || vt->index) // Only tuner 0
699 return -EINVAL;
700 strcpy(vt->name, "Television");
701 /* Let clients fill in the remainder of this struct */
702 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
703
704 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc);
705 return 0;
706 }
707 case VIDIOC_S_TUNER:
708 {
709 struct v4l2_tuner *vt = arg;
710
711 // Only no or one tuner for now
712 if (!usbvision->have_tuner || vt->index)
713 return -EINVAL;
714 /* let clients handle this */
715 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
716
717 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
718 return 0;
719 }
720 case VIDIOC_G_FREQUENCY:
721 {
722 struct v4l2_frequency *freq = arg;
723
724 freq->tuner = 0; // Only one tuner
725 freq->type = V4L2_TUNER_ANALOG_TV;
726 freq->frequency = usbvision->freq;
727 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
728 return 0;
729 }
730 case VIDIOC_S_FREQUENCY:
731 {
732 struct v4l2_frequency *freq = arg;
733
734 // Only no or one tuner for now
735 if (!usbvision->have_tuner || freq->tuner)
736 return -EINVAL;
737
738 usbvision->freq = freq->frequency;
739 call_i2c_clients(usbvision, cmd, freq);
740 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
741 return 0;
742 }
743 case VIDIOC_G_AUDIO:
744 {
745 struct v4l2_audio *v = arg;
746 memset(v,0, sizeof(v));
747 strcpy(v->name, "TV");
748 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
749 return 0;
750 }
751 case VIDIOC_S_AUDIO:
752 {
753 struct v4l2_audio *v = arg;
754 if(v->index) {
755 return -EINVAL;
756 }
757 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
758 return 0;
759 }
760 case VIDIOC_QUERYCTRL:
761 {
762 struct v4l2_queryctrl *ctrl = arg;
763 int id=ctrl->id;
764
765 memset(ctrl,0,sizeof(*ctrl));
766 ctrl->id=id;
767
768 call_i2c_clients(usbvision, cmd, arg);
769
770 if (ctrl->type)
771 return 0;
772 else
773 return -EINVAL;
774
775 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
776 }
777 case VIDIOC_G_CTRL:
778 {
779 struct v4l2_control *ctrl = arg;
780 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
781 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
782 return 0;
783 }
784 case VIDIOC_S_CTRL:
785 {
786 struct v4l2_control *ctrl = arg;
787
788 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
789 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
790 return 0;
791 }
792 case VIDIOC_REQBUFS:
793 {
794 struct v4l2_requestbuffers *vr = arg;
795 int ret;
796
797 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
798
799 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method.
800 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
801 (vr->memory != V4L2_MEMORY_MMAP))
802 return -EINVAL;
803
804 if(usbvision->streaming == Stream_On) {
805 if ((ret = usbvision_stream_interrupt(usbvision)))
806 return ret;
807 }
808
809 usbvision_frames_free(usbvision);
810 usbvision_empty_framequeues(usbvision);
811 vr->count = usbvision_frames_alloc(usbvision,vr->count);
812
813 usbvision->curFrame = NULL;
814
815 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count);
816 return 0;
817 }
818 case VIDIOC_QUERYBUF:
819 {
820 struct v4l2_buffer *vb = arg;
821 struct usbvision_frame *frame;
822
823 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called)
824
825 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
826 return -EINVAL;
827 }
828 if(vb->index>=usbvision->num_frames) {
829 return -EINVAL;
830 }
831 // Updating the corresponding frame state
832 vb->flags = 0;
833 frame = &usbvision->frame[vb->index];
834 if(frame->grabstate >= FrameState_Ready)
835 vb->flags |= V4L2_BUF_FLAG_QUEUED;
836 if(frame->grabstate >= FrameState_Done)
837 vb->flags |= V4L2_BUF_FLAG_DONE;
838 if(frame->grabstate == FrameState_Unused)
839 vb->flags |= V4L2_BUF_FLAG_MAPPED;
840 vb->memory = V4L2_MEMORY_MMAP;
841
842 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
843
844 vb->memory = V4L2_MEMORY_MMAP;
845 vb->field = V4L2_FIELD_NONE;
846 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel;
847 vb->timestamp = usbvision->frame[vb->index].timestamp;
848 vb->sequence = usbvision->frame[vb->index].sequence;
849 return 0;
850 }
851 case VIDIOC_QBUF:
852 {
853 struct v4l2_buffer *vb = arg;
854 struct usbvision_frame *frame;
855 unsigned long lock_flags;
856
857 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
858 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
859 return -EINVAL;
860 }
861 if(vb->index>=usbvision->num_frames) {
862 return -EINVAL;
863 }
864
865 frame = &usbvision->frame[vb->index];
866
867 if (frame->grabstate != FrameState_Unused) {
868 return -EAGAIN;
869 }
870
871 /* Mark it as ready and enqueue frame */
872 frame->grabstate = FrameState_Ready;
873 frame->scanstate = ScanState_Scanning;
874 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
875
876 vb->flags &= ~V4L2_BUF_FLAG_DONE;
877
878 /* set v4l2_format index */
879 frame->v4l2_format = usbvision->palette;
880
881 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
882 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
883 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
884
885 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index);
886 return 0;
887 }
888 case VIDIOC_DQBUF:
889 {
890 struct v4l2_buffer *vb = arg;
891 int ret;
892 struct usbvision_frame *f;
893 unsigned long lock_flags;
894
895 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
896 return -EINVAL;
897
898 if (list_empty(&(usbvision->outqueue))) {
899 if (usbvision->streaming == Stream_Idle)
900 return -EINVAL;
901 ret = wait_event_interruptible
902 (usbvision->wait_frame,
903 !list_empty(&(usbvision->outqueue)));
904 if (ret)
905 return ret;
906 }
907
908 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
909 f = list_entry(usbvision->outqueue.next,
910 struct usbvision_frame, frame);
911 list_del(usbvision->outqueue.next);
912 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
913
914 f->grabstate = FrameState_Unused;
915
916 vb->memory = V4L2_MEMORY_MMAP;
917 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
918 vb->index = f->index;
919 vb->sequence = f->sequence;
920 vb->timestamp = f->timestamp;
921 vb->field = V4L2_FIELD_NONE;
922 vb->bytesused = f->scanlength;
923
924 return 0;
925 }
926 case VIDIOC_STREAMON:
927 {
928 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
929
930 usbvision->streaming = Stream_On;
931
932 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
933
934 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON");
935
936 return 0;
937 }
938 case VIDIOC_STREAMOFF:
939 {
940 int *type = arg;
941 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
942
943 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
944 return -EINVAL;
945
946 if(usbvision->streaming == Stream_On) {
947 usbvision_stream_interrupt(usbvision);
948 // Stop all video streamings
949 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
950 }
951 usbvision_empty_framequeues(usbvision);
952
953 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF");
954 return 0;
955 }
956 case VIDIOC_ENUM_FMT:
957 {
958 struct v4l2_fmtdesc *vfd = arg;
959
960 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
961 return -EINVAL;
962 }
963 vfd->flags = 0;
964 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
965 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
966 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
967 memset(vfd->reserved, 0, sizeof(vfd->reserved));
968 return 0;
969 }
970 case VIDIOC_G_FMT:
971 {
972 struct v4l2_format *vf = arg;
973
974 switch (vf->type) {
975 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
976 {
977 vf->fmt.pix.width = usbvision->curwidth;
978 vf->fmt.pix.height = usbvision->curheight;
979 vf->fmt.pix.pixelformat = usbvision->palette.format;
980 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel;
981 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
982 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
983 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
984 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s",
985 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
986 return 0;
987 }
988 default:
989 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type);
990 return -EINVAL;
991 }
992 return 0;
993 }
994 case VIDIOC_TRY_FMT:
995 case VIDIOC_S_FMT:
996 {
997 struct v4l2_format *vf = arg;
998 int formatIdx,ret;
999
1000 switch(vf->type) {
1001 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1002 {
1003 /* Find requested format in available ones */
1004 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1005 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) {
1006 usbvision->palette = usbvision_v4l2_format[formatIdx];
1007 break;
1008 }
1009 }
1010 /* robustness */
1011 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1012 return -EINVAL;
1013 }
1014 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1015 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1016
1017 vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel;
1018 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1019
1020 if(cmd == VIDIOC_TRY_FMT) {
1021 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s",
1022 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
1023 return 0;
1024 }
1025
1026 /* stop io in case it is already in progress */
1027 if(usbvision->streaming == Stream_On) {
1028 if ((ret = usbvision_stream_interrupt(usbvision)))
1029 return ret;
1030 }
1031 usbvision_frames_free(usbvision);
1032 usbvision_empty_framequeues(usbvision);
1033
1034 usbvision->curFrame = NULL;
1035
1036 // by now we are committed to the new data...
1037 down(&usbvision->lock);
1038 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1039 up(&usbvision->lock);
1040
1041 PDEBUG(DBG_IOCTL, "VIDIOC_S_FMT grabdisplay w=%d, h=%d, format=%s",
1042 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
1043 return 0;
1044 }
1045 default:
1046 return -EINVAL;
1047 }
1048 }
1049 default:
1050 return -ENOIOCTLCMD;
1051 }
1052 return 0;
1053 }
1054
1055 static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
1056 unsigned int cmd, unsigned long arg)
1057 {
1058 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
1059 }
1060
1061
1062 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1063 size_t count, loff_t *ppos)
1064 {
1065 struct video_device *dev = video_devdata(file);
1066 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1067 int noblock = file->f_flags & O_NONBLOCK;
1068 unsigned long lock_flags;
1069
1070 int ret,i;
1071 struct usbvision_frame *frame;
1072
1073 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
1074
1075 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1076 return -EFAULT;
1077
1078 /* This entry point is compatible with the mmap routines so that a user can do either
1079 VIDIOC_QBUF/VIDIOC_DQBUF to get frames or call read on the device. */
1080 if(!usbvision->num_frames) {
1081 /* First, allocate some frames to work with if this has not been done with
1082 VIDIOC_REQBUF */
1083 usbvision_frames_free(usbvision);
1084 usbvision_empty_framequeues(usbvision);
1085 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1086 }
1087
1088 if(usbvision->streaming != Stream_On) {
1089 /* no stream is running, make it running ! */
1090 usbvision->streaming = Stream_On;
1091 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1092 }
1093
1094 /* Then, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
1095 for(i=0;i<usbvision->num_frames;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 PDEBUG(DBG_MMAP, "mmap");
1173
1174 down(&usbvision->lock);
1175
1176 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1177 up(&usbvision->lock);
1178 return -EFAULT;
1179 }
1180
1181 if (!(vma->vm_flags & VM_WRITE) ||
1182 size != PAGE_ALIGN(usbvision->max_frame_size)) {
1183 up(&usbvision->lock);
1184 return -EINVAL;
1185 }
1186
1187 for (i = 0; i < usbvision->num_frames; i++) {
1188 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) == vma->vm_pgoff)
1189 break;
1190 }
1191 if (i == usbvision->num_frames) {
1192 PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range");
1193 up(&usbvision->lock);
1194 return -EINVAL;
1195 }
1196
1197 /* VM_IO is eventually going to replace PageReserved altogether */
1198 vma->vm_flags |= VM_IO;
1199 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1200
1201 pos = usbvision->frame[i].data;
1202 while (size > 0) {
1203
1204 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1205 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1206 up(&usbvision->lock);
1207 return -EAGAIN;
1208 }
1209 start += PAGE_SIZE;
1210 pos += PAGE_SIZE;
1211 size -= PAGE_SIZE;
1212 }
1213
1214 up(&usbvision->lock);
1215 return 0;
1216 }
1217
1218
1219 /*
1220 * Here comes the stuff for radio on usbvision based devices
1221 *
1222 */
1223 static int usbvision_radio_open(struct inode *inode, struct file *file)
1224 {
1225 struct video_device *dev = video_devdata(file);
1226 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1227 struct v4l2_frequency freq;
1228 int errCode = 0;
1229
1230 PDEBUG(DBG_IO, "%s:", __FUNCTION__);
1231
1232 down(&usbvision->lock);
1233
1234 if (usbvision->user) {
1235 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
1236 errCode = -EBUSY;
1237 }
1238 else {
1239 if(PowerOnAtOpen) {
1240 usbvision_reset_powerOffTimer(usbvision);
1241 if (usbvision->power == 0) {
1242 usbvision_power_on(usbvision);
1243 usbvision_init_i2c(usbvision);
1244 }
1245 }
1246
1247 /* Alternate interface 1 is is the biggest frame size */
1248 errCode = usbvision_set_alternate(usbvision);
1249 if (errCode < 0) {
1250 usbvision->last_error = errCode;
1251 return -EBUSY;
1252 }
1253
1254 // If so far no errors then we shall start the radio
1255 usbvision->radio = 1;
1256 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1257 freq.frequency = 1517; //SWR3 @ 94.8MHz
1258 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
1259 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1260 usbvision->user++;
1261 }
1262
1263 if (errCode) {
1264 if (PowerOnAtOpen) {
1265 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
1266 usbvision_power_off(usbvision);
1267 usbvision->initialized = 0;
1268 }
1269 }
1270 up(&usbvision->lock);
1271 return errCode;
1272 }
1273
1274
1275 static int usbvision_radio_close(struct inode *inode, struct file *file)
1276 {
1277 struct video_device *dev = video_devdata(file);
1278 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1279 int errCode = 0;
1280
1281 PDEBUG(DBG_IO, "");
1282
1283 down(&usbvision->lock);
1284
1285 /* Set packet size to 0 */
1286 usbvision->ifaceAlt=0;
1287 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1288 usbvision->ifaceAlt);
1289
1290 usbvision_audio_off(usbvision);
1291 usbvision->radio=0;
1292 usbvision->user--;
1293
1294 if (PowerOnAtOpen) {
1295 usbvision_set_powerOffTimer(usbvision);
1296 usbvision->initialized = 0;
1297 }
1298
1299 up(&usbvision->lock);
1300
1301 if (usbvision->remove_pending) {
1302 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
1303 usbvision_release(usbvision);
1304 }
1305
1306
1307 PDEBUG(DBG_IO, "success");
1308
1309 return errCode;
1310 }
1311
1312 static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
1313 unsigned int cmd, void *arg)
1314 {
1315 struct video_device *dev = video_devdata(file);
1316 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1317
1318 if (!USBVISION_IS_OPERATIONAL(usbvision))
1319 return -EIO;
1320
1321 switch (cmd) {
1322 case VIDIOC_QUERYCAP:
1323 {
1324 struct v4l2_capability *vc=arg;
1325
1326 memset(vc, 0, sizeof(*vc));
1327 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
1328 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
1329 sizeof(vc->card));
1330 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
1331 sizeof(vc->bus_info));
1332 vc->version = USBVISION_DRIVER_VERSION;
1333 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
1334 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP");
1335 return 0;
1336 }
1337 case VIDIOC_QUERYCTRL:
1338 {
1339 struct v4l2_queryctrl *ctrl = arg;
1340 int id=ctrl->id;
1341
1342 memset(ctrl,0,sizeof(*ctrl));
1343 ctrl->id=id;
1344
1345 call_i2c_clients(usbvision, cmd, arg);
1346 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
1347
1348 if (ctrl->type)
1349 return 0;
1350 else
1351 return -EINVAL;
1352
1353 }
1354 case VIDIOC_G_CTRL:
1355 {
1356 struct v4l2_control *ctrl = arg;
1357
1358 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
1359 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
1360 return 0;
1361 }
1362 case VIDIOC_S_CTRL:
1363 {
1364 struct v4l2_control *ctrl = arg;
1365
1366 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
1367 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
1368 return 0;
1369 }
1370 case VIDIOC_G_TUNER:
1371 {
1372 struct v4l2_tuner *t = arg;
1373
1374 if (t->index > 0)
1375 return -EINVAL;
1376
1377 memset(t,0,sizeof(*t));
1378 strcpy(t->name, "Radio");
1379 t->type = V4L2_TUNER_RADIO;
1380
1381 /* Let clients fill in the remainder of this struct */
1382 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t);
1383 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc);
1384 return 0;
1385 }
1386 case VIDIOC_S_TUNER:
1387 {
1388 struct v4l2_tuner *vt = arg;
1389
1390 // Only no or one tuner for now
1391 if (!usbvision->have_tuner || vt->index)
1392 return -EINVAL;
1393 /* let clients handle this */
1394 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
1395
1396 PDEBUG(DBG_IO, "VIDIOC_S_TUNER");
1397 return 0;
1398 }
1399 case VIDIOC_G_AUDIO:
1400 {
1401 struct v4l2_audio *a = arg;
1402
1403 memset(a,0,sizeof(*a));
1404 strcpy(a->name,"Radio");
1405 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO");
1406 return 0;
1407 }
1408 case VIDIOC_S_AUDIO:
1409 case VIDIOC_S_INPUT:
1410 case VIDIOC_S_STD:
1411 return 0;
1412
1413 case VIDIOC_G_FREQUENCY:
1414 {
1415 struct v4l2_frequency *f = arg;
1416
1417 memset(f,0,sizeof(*f));
1418
1419 f->type = V4L2_TUNER_RADIO;
1420 f->frequency = usbvision->freq;
1421 call_i2c_clients(usbvision, cmd, f);
1422 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency);
1423
1424 return 0;
1425 }
1426 case VIDIOC_S_FREQUENCY:
1427 {
1428 struct v4l2_frequency *f = arg;
1429
1430 if (f->tuner != 0)
1431 return -EINVAL;
1432 usbvision->freq = f->frequency;
1433 call_i2c_clients(usbvision, cmd, f);
1434 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency);
1435
1436 return 0;
1437 }
1438 default:
1439 {
1440 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd);
1441 return -ENOIOCTLCMD;
1442 }
1443 }
1444 return 0;
1445 }
1446
1447
1448 static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
1449 unsigned int cmd, unsigned long arg)
1450 {
1451 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
1452 }
1453
1454
1455 /*
1456 * Here comes the stuff for vbi on usbvision based devices
1457 *
1458 */
1459 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1460 {
1461 /* TODO */
1462 return -EINVAL;
1463
1464 }
1465
1466 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1467 {
1468 /* TODO */
1469 return -EINVAL;
1470 }
1471
1472 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1473 unsigned int cmd, void *arg)
1474 {
1475 /* TODO */
1476 return -EINVAL;
1477 }
1478
1479 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1480 unsigned int cmd, unsigned long arg)
1481 {
1482 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1483 }
1484
1485
1486 //
1487 // Video registration stuff
1488 //
1489
1490 // Video template
1491 static const struct file_operations usbvision_fops = {
1492 .owner = THIS_MODULE,
1493 .open = usbvision_v4l2_open,
1494 .release = usbvision_v4l2_close,
1495 .read = usbvision_v4l2_read,
1496 .mmap = usbvision_v4l2_mmap,
1497 .ioctl = usbvision_v4l2_ioctl,
1498 .llseek = no_llseek,
1499 };
1500 static struct video_device usbvision_video_template = {
1501 .owner = THIS_MODULE,
1502 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
1503 .hardware = VID_HARDWARE_USBVISION,
1504 .fops = &usbvision_fops,
1505 .name = "usbvision-video",
1506 .release = video_device_release,
1507 .minor = -1,
1508 };
1509
1510
1511 // Radio template
1512 static const struct file_operations usbvision_radio_fops = {
1513 .owner = THIS_MODULE,
1514 .open = usbvision_radio_open,
1515 .release = usbvision_radio_close,
1516 .ioctl = usbvision_radio_ioctl,
1517 .llseek = no_llseek,
1518 };
1519
1520 static struct video_device usbvision_radio_template=
1521 {
1522 .owner = THIS_MODULE,
1523 .type = VID_TYPE_TUNER,
1524 .hardware = VID_HARDWARE_USBVISION,
1525 .fops = &usbvision_radio_fops,
1526 .release = video_device_release,
1527 .name = "usbvision-radio",
1528 .minor = -1,
1529 };
1530
1531
1532 // vbi template
1533 static const struct file_operations usbvision_vbi_fops = {
1534 .owner = THIS_MODULE,
1535 .open = usbvision_vbi_open,
1536 .release = usbvision_vbi_close,
1537 .ioctl = usbvision_vbi_ioctl,
1538 .llseek = no_llseek,
1539 };
1540
1541 static struct video_device usbvision_vbi_template=
1542 {
1543 .owner = THIS_MODULE,
1544 .type = VID_TYPE_TUNER,
1545 .hardware = VID_HARDWARE_USBVISION,
1546 .fops = &usbvision_vbi_fops,
1547 .release = video_device_release,
1548 .name = "usbvision-vbi",
1549 .minor = -1,
1550 };
1551
1552
1553 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1554 struct video_device *vdev_template,
1555 char *name)
1556 {
1557 struct usb_device *usb_dev = usbvision->dev;
1558 struct video_device *vdev;
1559
1560 if (usb_dev == NULL) {
1561 err("%s: usbvision->dev is not set", __FUNCTION__);
1562 return NULL;
1563 }
1564
1565 vdev = video_device_alloc();
1566 if (NULL == vdev) {
1567 return NULL;
1568 }
1569 *vdev = *vdev_template;
1570 // vdev->minor = -1;
1571 vdev->dev = &usb_dev->dev;
1572 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1573 video_set_drvdata(vdev, usbvision);
1574 return vdev;
1575 }
1576
1577 // unregister video4linux devices
1578 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1579 {
1580 // vbi Device:
1581 if (usbvision->vbi) {
1582 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
1583 if (usbvision->vbi->minor != -1) {
1584 video_unregister_device(usbvision->vbi);
1585 }
1586 else {
1587 video_device_release(usbvision->vbi);
1588 }
1589 usbvision->vbi = NULL;
1590 }
1591
1592 // Radio Device:
1593 if (usbvision->rdev) {
1594 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
1595 if (usbvision->rdev->minor != -1) {
1596 video_unregister_device(usbvision->rdev);
1597 }
1598 else {
1599 video_device_release(usbvision->rdev);
1600 }
1601 usbvision->rdev = NULL;
1602 }
1603
1604 // Video Device:
1605 if (usbvision->vdev) {
1606 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
1607 if (usbvision->vdev->minor != -1) {
1608 video_unregister_device(usbvision->vdev);
1609 }
1610 else {
1611 video_device_release(usbvision->vdev);
1612 }
1613 usbvision->vdev = NULL;
1614 }
1615 }
1616
1617 // register video4linux devices
1618 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1619 {
1620 // Video Device:
1621 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
1622 if (usbvision->vdev == NULL) {
1623 goto err_exit;
1624 }
1625 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
1626 goto err_exit;
1627 }
1628 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f);
1629
1630 // Radio Device:
1631 if (usbvision_device_data[usbvision->DevModel].Radio) {
1632 // usbvision has radio
1633 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
1634 if (usbvision->rdev == NULL) {
1635 goto err_exit;
1636 }
1637 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
1638 goto err_exit;
1639 }
1640 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f);
1641 }
1642 // vbi Device:
1643 if (usbvision_device_data[usbvision->DevModel].vbi) {
1644 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
1645 if (usbvision->vdev == NULL) {
1646 goto err_exit;
1647 }
1648 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
1649 goto err_exit;
1650 }
1651 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f);
1652 }
1653 // all done
1654 return 0;
1655
1656 err_exit:
1657 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1658 usbvision_unregister_video(usbvision);
1659 return -1;
1660 }
1661
1662 /*
1663 * usbvision_alloc()
1664 *
1665 * This code allocates the struct usb_usbvision. It is filled with default values.
1666 *
1667 * Returns NULL on error, a pointer to usb_usbvision else.
1668 *
1669 */
1670 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1671 {
1672 struct usb_usbvision *usbvision;
1673
1674 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
1675 goto err_exit;
1676 }
1677
1678 usbvision->dev = dev;
1679
1680 init_MUTEX(&usbvision->lock); /* to 1 == available */
1681
1682 // prepare control urb for control messages during interrupts
1683 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1684 if (usbvision->ctrlUrb == NULL) {
1685 goto err_exit;
1686 }
1687 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1688 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
1689
1690 usbvision_init_powerOffTimer(usbvision);
1691
1692 return usbvision;
1693
1694 err_exit:
1695 if (usbvision && usbvision->ctrlUrb) {
1696 usb_free_urb(usbvision->ctrlUrb);
1697 }
1698 if (usbvision) {
1699 kfree(usbvision);
1700 }
1701 return NULL;
1702 }
1703
1704 /*
1705 * usbvision_release()
1706 *
1707 * This code does final release of struct usb_usbvision. This happens
1708 * after the device is disconnected -and- all clients closed their files.
1709 *
1710 */
1711 static void usbvision_release(struct usb_usbvision *usbvision)
1712 {
1713 PDEBUG(DBG_PROBE, "");
1714
1715 down(&usbvision->lock);
1716
1717 usbvision_reset_powerOffTimer(usbvision);
1718
1719 usbvision->initialized = 0;
1720
1721 up(&usbvision->lock);
1722
1723 usbvision_remove_sysfs(usbvision->vdev);
1724 usbvision_unregister_video(usbvision);
1725
1726 if (usbvision->ctrlUrb) {
1727 usb_free_urb(usbvision->ctrlUrb);
1728 }
1729
1730 kfree(usbvision);
1731
1732 PDEBUG(DBG_PROBE, "success");
1733 }
1734
1735
1736 /******************************** usb interface *****************************************/
1737
1738 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1739 {
1740 int model,i;
1741
1742 if (usbvision == NULL)
1743 return;
1744
1745 model = usbvision->DevModel;
1746 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1747
1748 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) {
1749 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff;
1750 } else {
1751 usbvision->Vin_Reg2_Preset = 0;
1752 }
1753
1754 for (i = 0; i < TVNORMS; i++)
1755 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode)
1756 break;
1757 if (i == TVNORMS)
1758 i = 0;
1759 usbvision->tvnorm = &tvnorms[i]; /* set default norm */
1760
1761 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1762 usbvision->ctl_input = 0;
1763
1764 /* This should be here to make i2c clients to be able to register */
1765 usbvision_audio_off(usbvision); //first switch off audio
1766 if (!PowerOnAtOpen) {
1767 usbvision_power_on(usbvision); //and then power up the noisy tuner
1768 usbvision_init_i2c(usbvision);
1769 }
1770 }
1771
1772 /*
1773 * usbvision_probe()
1774 *
1775 * This procedure queries device descriptor and accepts the interface
1776 * if it looks like USBVISION video device
1777 *
1778 */
1779 static int __devinit usbvision_probe(struct usb_interface *intf,
1780 const struct usb_device_id *devid)
1781 {
1782 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1783 struct usb_interface *uif;
1784 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1785 const struct usb_host_interface *interface;
1786 struct usb_usbvision *usbvision = NULL;
1787 const struct usb_endpoint_descriptor *endpoint;
1788 int model,i;
1789
1790 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1791 dev->descriptor.idVendor,
1792 dev->descriptor.idProduct, ifnum);
1793
1794 model = devid->driver_info;
1795 printk(KERN_INFO "%s: %s found\n", __FUNCTION__,
1796 usbvision_device_data[model].ModelString);
1797
1798 if (usbvision_device_data[model].Interface >= 0) {
1799 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1800 }
1801 else {
1802 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1803 }
1804 endpoint = &interface->endpoint[1].desc;
1805 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
1806 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
1807 err("%s: Endpoint attributes %d", __FUNCTION__, endpoint->bmAttributes);
1808 return -ENODEV;
1809 }
1810 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
1811 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
1812 return -ENODEV;
1813 }
1814
1815 usb_get_dev(dev);
1816
1817 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1818 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
1819 return -ENOMEM;
1820 }
1821
1822 if (dev->descriptor.bNumConfigurations > 1) {
1823 usbvision->bridgeType = BRIDGE_NT1004;
1824 }
1825 else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1826 usbvision->bridgeType = BRIDGE_NT1005;
1827 }
1828 else {
1829 usbvision->bridgeType = BRIDGE_NT1003;
1830 }
1831 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1832
1833 down(&usbvision->lock);
1834
1835 /* compute alternate max packet sizes */
1836 uif = dev->actconfig->interface[0];
1837
1838 usbvision->num_alt=uif->num_altsetting;
1839 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1840 usbvision->alt_max_pkt_size = kmalloc(32*
1841 usbvision->num_alt,GFP_KERNEL);
1842 if (usbvision->alt_max_pkt_size == NULL) {
1843 err("usbvision: out of memory!\n");
1844 return -ENOMEM;
1845 }
1846
1847 for (i = 0; i < usbvision->num_alt ; i++) {
1848 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1849 wMaxPacketSize);
1850 usbvision->alt_max_pkt_size[i] =
1851 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1852 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1853 usbvision->alt_max_pkt_size[i]);
1854 }
1855
1856
1857 usbvision->nr = usbvision_nr++;
1858
1859 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1860 if (usbvision->have_tuner) {
1861 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1862 }
1863
1864 usbvision->tuner_addr = ADDR_UNSET;
1865
1866 usbvision->DevModel = model;
1867 usbvision->remove_pending = 0;
1868 usbvision->iface = ifnum;
1869 usbvision->ifaceAlt = 0;
1870 usbvision->video_endp = endpoint->bEndpointAddress;
1871 usbvision->isocPacketSize = 0;
1872 usbvision->usb_bandwidth = 0;
1873 usbvision->user = 0;
1874 usbvision->streaming = Stream_Off;
1875 usbvision_register_video(usbvision);
1876 usbvision_configure_video(usbvision);
1877 up(&usbvision->lock);
1878
1879
1880 usb_set_intfdata (intf, usbvision);
1881 usbvision_create_sysfs(usbvision->vdev);
1882
1883 PDEBUG(DBG_PROBE, "success");
1884 return 0;
1885 }
1886
1887
1888 /*
1889 * usbvision_disconnect()
1890 *
1891 * This procedure stops all driver activity, deallocates interface-private
1892 * structure (pointed by 'ptr') and after that driver should be removable
1893 * with no ill consequences.
1894 *
1895 */
1896 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1897 {
1898 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1899
1900 PDEBUG(DBG_PROBE, "");
1901
1902 if (usbvision == NULL) {
1903 err("%s: usb_get_intfdata() failed", __FUNCTION__);
1904 return;
1905 }
1906 usb_set_intfdata (intf, NULL);
1907
1908 down(&usbvision->lock);
1909
1910 // At this time we ask to cancel outstanding URBs
1911 usbvision_stop_isoc(usbvision);
1912
1913 if (usbvision->power) {
1914 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
1915 usbvision_power_off(usbvision);
1916 }
1917 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1918
1919 usb_put_dev(usbvision->dev);
1920 usbvision->dev = NULL; // USB device is no more
1921
1922 up(&usbvision->lock);
1923
1924 if (usbvision->user) {
1925 printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__);
1926 wake_up_interruptible(&usbvision->wait_frame);
1927 wake_up_interruptible(&usbvision->wait_stream);
1928 }
1929 else {
1930 usbvision_release(usbvision);
1931 }
1932
1933 PDEBUG(DBG_PROBE, "success");
1934
1935 }
1936
1937 static struct usb_driver usbvision_driver = {
1938 .name = "usbvision",
1939 .id_table = usbvision_table,
1940 .probe = usbvision_probe,
1941 .disconnect = usbvision_disconnect
1942 };
1943
1944 /*
1945 * customdevice_process()
1946 *
1947 * This procedure preprocesses CustomDevice parameter if any
1948 *
1949 */
1950 static void customdevice_process(void)
1951 {
1952 unsigned int id_vend,id_prod,radio,tuner;
1953
1954 usbvision_device_data[0]=usbvision_device_data[1];
1955 usbvision_table[0]=usbvision_table[1];
1956
1957 if(CustomDevice)
1958 {
1959 char *parse=CustomDevice;
1960
1961 PDEBUG(DBG_PROBE, "CustomDevice=%s", CustomDevice);
1962
1963 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1"
1964 usbvision_device_data[0].idVendor;
1965 usbvision_device_data[0].idProduct;
1966 usbvision_device_data[0].Interface;
1967 usbvision_device_data[0].Codec;
1968 usbvision_device_data[0].VideoChannels;
1969 usbvision_device_data[0].VideoNorm;
1970 usbvision_device_data[0].AudioChannels;
1971 usbvision_device_data[0].Radio;
1972 usbvision_device_data[0].Tuner;
1973 usbvision_device_data[0].TunerType;
1974 usbvision_device_data[0].Vin_Reg1;
1975 usbvision_device_data[0].Vin_Reg2;
1976 usbvision_device_data[0].X_Offset;
1977 usbvision_device_data[0].Y_Offset;
1978 usbvision_device_data[0].Dvi_yuv;
1979 usbvision_device_data[0].ModelString;
1980 */
1981
1982 rmspace(parse);
1983 usbvision_device_data[0].ModelString="USBVISION Custom Device";
1984
1985 parse+=2;
1986 sscanf(parse,"%u",&id_vend);
1987 usbvision_table[0].idVendor=id_vend;
1988
1989 goto2next(parse);
1990 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_table[0].idVendor);
1991 parse+=2;
1992 sscanf(parse,"%u",&id_prod);
1993 usbvision_table[0].idProduct=id_prod;
1994 goto2next(parse);
1995 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_table[0].idProduct);
1996 sscanf(parse,"%d",&usbvision_device_data[0].Interface);
1997 goto2next(parse);
1998 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface);
1999 sscanf(parse,"%d",&usbvision_device_data[0].Codec);
2000 goto2next(parse);
2001 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec);
2002 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels);
2003 goto2next(parse);
2004 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels);
2005
2006 switch(*parse)
2007 {
2008 case 'P':
2009 PDEBUG(DBG_PROBE, "VideoNorm=PAL");
2010 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL;
2011 break;
2012
2013 case 'S':
2014 PDEBUG(DBG_PROBE, "VideoNorm=SECAM");
2015 usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM;
2016 break;
2017
2018 case 'N':
2019 PDEBUG(DBG_PROBE, "VideoNorm=NTSC");
2020 usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC;
2021 break;
2022
2023 default:
2024 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)");
2025 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL;
2026 break;
2027 }
2028 goto2next(parse);
2029
2030 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels);
2031 goto2next(parse);
2032 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels);
2033 sscanf(parse,"%d",&radio);
2034 usbvision_device_data[0].Radio=(radio?1:0);
2035 goto2next(parse);
2036 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio);
2037 sscanf(parse,"%d",&tuner);
2038 usbvision_device_data[0].Tuner=(tuner?1:0);
2039 goto2next(parse);
2040 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner);
2041 sscanf(parse,"%d",&usbvision_device_data[0].TunerType);
2042 goto2next(parse);
2043 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType);
2044 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1);
2045 goto2next(parse);
2046 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1);
2047 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2);
2048 goto2next(parse);
2049 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2);
2050 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset);
2051 goto2next(parse);
2052 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset);
2053 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset);
2054 goto2next(parse);
2055 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset);
2056 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv);
2057 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv);
2058
2059 //add to usbvision_table also
2060 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE;
2061 }
2062 }
2063
2064
2065
2066 /*
2067 * usbvision_init()
2068 *
2069 * This code is run to initialize the driver.
2070 *
2071 */
2072 static int __init usbvision_init(void)
2073 {
2074 int errCode;
2075
2076 PDEBUG(DBG_PROBE, "");
2077
2078 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]");
2079 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
2080 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
2081 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
2082
2083 /* disable planar mode support unless compression enabled */
2084 if (isocMode != ISOC_MODE_COMPRESS ) {
2085 // FIXME : not the right way to set supported flag
2086 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
2087 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
2088 }
2089
2090 customdevice_process();
2091
2092 errCode = usb_register(&usbvision_driver);
2093
2094 if (errCode == 0) {
2095 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
2096 PDEBUG(DBG_PROBE, "success");
2097 }
2098 return errCode;
2099 }
2100
2101 static void __exit usbvision_exit(void)
2102 {
2103 PDEBUG(DBG_PROBE, "");
2104
2105 usb_deregister(&usbvision_driver);
2106 PDEBUG(DBG_PROBE, "success");
2107 }
2108
2109 module_init(usbvision_init);
2110 module_exit(usbvision_exit);
2111
2112 /*
2113 * Overrides for Emacs so that we follow Linus's tabbing style.
2114 * ---------------------------------------------------------------------------
2115 * Local variables:
2116 * c-basic-offset: 8
2117 * End:
2118 */
Linux kernel - Deliverables
This page took 0.078958 seconds and 4 git commands to generate.