2 * USB USBVISION Video device driver 0.9.9
6 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
8 * This module is part of usbvision driver project.
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.
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.
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.
24 * Let's call the version 0.... until compression decoding is completely
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
36 * - use submit_urb for all setup packets
37 * - Fix memory settings for nt1004. It is 4 times as big as the
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
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>
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>
62 #include <linux/videodev2.h>
63 #include <linux/video_decoder.h>
64 #include <linux/i2c.h>
66 #include <media/saa7115.h>
67 #include <media/v4l2-common.h>
68 #include <media/tuner.h>
69 #include <media/audiochip.h>
71 #include <linux/moduleparam.h>
72 #include <linux/workqueue.h>
75 #include <linux/kmod.h>
78 #include "usbvision.h"
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)
91 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
94 #ifdef USBVISION_DEBUG
95 #define PDEBUG(level, fmt, args...) \
96 if (video_debug & (level)) info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ , ## args)
98 #define PDEBUG(level, fmt, args...) do {} while(0)
101 #define DBG_IOCTL 1<<0
103 #define DBG_PROBE 1<<2
104 #define DBG_MMAP 1<<3
107 #define rmspace(str) while(*str==' ') str++;
108 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
111 static int usbvision_nr = 0; // sequential number of usbvision device
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" }
124 /* supported tv norms */
125 static struct usbvision_tvnorm tvnorms[] = {
134 .id = V4L2_STD_SECAM,
137 .id = V4L2_STD_PAL_M,
141 #define TVNORMS ARRAY_SIZE(tvnorms)
143 // Function prototypes
144 static void usbvision_release(struct usb_usbvision *usbvision);
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....
155 // Grab parameters for the device driver
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);
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
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");
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);
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 /****************************************************************************************/
202 #define YES_NO(x) ((x) ? "Yes" : "No")
204 static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
206 struct video_device *vdev = container_of(cd, struct video_device, class_dev);
207 return video_get_drvdata(vdev);
210 static ssize_t show_version(struct class_device *cd, char *buf)
212 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
214 static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
216 static ssize_t show_model(struct class_device *cd, char *buf)
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);
222 static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
224 static ssize_t show_hue(struct class_device *cd, char *buf)
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;
232 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
233 return sprintf(buf, "%d\n", ctrl.value >> 8);
235 static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
237 static ssize_t show_contrast(struct class_device *cd, char *buf)
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;
245 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
246 return sprintf(buf, "%d\n", ctrl.value >> 8);
248 static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
250 static ssize_t show_brightness(struct class_device *cd, char *buf)
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;
258 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
259 return sprintf(buf, "%d\n", ctrl.value >> 8);
261 static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
263 static ssize_t show_saturation(struct class_device *cd, char *buf)
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;
271 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
272 return sprintf(buf, "%d\n", ctrl.value >> 8);
274 static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
276 static ssize_t show_streaming(struct class_device *cd, char *buf)
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));
282 static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
284 static ssize_t show_compression(struct class_device *cd, char *buf)
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));
290 static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
292 static ssize_t show_device_bridge(struct class_device *cd, char *buf)
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);
298 static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
300 static void usbvision_create_sysfs(struct video_device *vdev)
306 res=class_device_create_file(&vdev->class_dev,
307 &class_device_attr_version);
310 res=class_device_create_file(&vdev->class_dev,
311 &class_device_attr_model);
314 res=class_device_create_file(&vdev->class_dev,
315 &class_device_attr_hue);
318 res=class_device_create_file(&vdev->class_dev,
319 &class_device_attr_contrast);
322 res=class_device_create_file(&vdev->class_dev,
323 &class_device_attr_brightness);
326 res=class_device_create_file(&vdev->class_dev,
327 &class_device_attr_saturation);
330 res=class_device_create_file(&vdev->class_dev,
331 &class_device_attr_streaming);
334 res=class_device_create_file(&vdev->class_dev,
335 &class_device_attr_compression);
338 res=class_device_create_file(&vdev->class_dev,
339 &class_device_attr_bridge);
344 err("%s error: %d\n", __FUNCTION__, res);
347 static void usbvision_remove_sysfs(struct video_device *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);
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.
380 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
382 struct video_device *dev = video_devdata(file);
383 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
386 PDEBUG(DBG_IO, "open");
389 usbvision_reset_powerOffTimer(usbvision);
394 /* Allocate memory for the frame buffers */
395 errCode = usbvision_frames_alloc(usbvision);
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);
405 /* Deallocate all buffers if trouble */
406 usbvision_frames_free(usbvision);
407 usbvision_scratch_free(usbvision);
408 usbvision_decompress_free(usbvision);
412 /* If so far no errors then we shall start the camera */
414 down(&usbvision->lock);
415 if (usbvision->power == 0) {
416 usbvision_power_on(usbvision);
417 usbvision_init_i2c(usbvision);
420 /* Send init sequence only once, it's large! */
421 if (!usbvision->initialized) {
423 setup_ok = usbvision_setup(usbvision,isocMode);
425 usbvision->initialized = 1;
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);
439 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
440 usbvision_power_off(usbvision);
441 usbvision->initialized = 0;
444 up(&usbvision->lock);
451 usbvision_empty_framequeues(usbvision);
453 PDEBUG(DBG_IO, "success");
458 * usbvision_v4l2_close()
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().
465 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
467 struct video_device *dev = video_devdata(file);
468 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
470 PDEBUG(DBG_IO, "close");
471 down(&usbvision->lock);
473 usbvision_audio_off(usbvision);
474 usbvision_restart_isoc(usbvision);
475 usbvision_stop_isoc(usbvision);
477 usbvision_decompress_free(usbvision);
478 usbvision_frames_free(usbvision);
479 usbvision_scratch_free(usbvision);
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;
489 up(&usbvision->lock);
491 if (usbvision->remove_pending) {
492 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
493 usbvision_release(usbvision);
496 PDEBUG(DBG_IO, "success");
506 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
509 static int usbvision_v4l2_do_ioctl(struct inode *inode, struct file *file,
510 unsigned int cmd, void *arg)
512 struct video_device *dev = video_devdata(file);
513 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
515 if (!USBVISION_IS_OPERATIONAL(usbvision))
520 #ifdef CONFIG_VIDEO_ADV_DEBUG
521 /* ioctls to allow direct acces to the NT100x registers */
522 case VIDIOC_DBG_G_REGISTER:
523 case VIDIOC_DBG_S_REGISTER:
525 struct v4l2_register *reg = arg;
528 if (reg->i2c_id != 0)
530 if (!capable(CAP_SYS_ADMIN))
532 /* NT100x has a 8-bit register space */
533 if (cmd == VIDIOC_DBG_G_REGISTER)
534 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
536 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
538 err("%s: VIDIOC_DBG_%c_REGISTER failed: error %d", __FUNCTION__,
539 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S', errCode);
542 if (cmd == VIDIOC_DBG_S_REGISTER)
543 reg->val = (u8)errCode;
545 PDEBUG(DBG_IOCTL, "VIDIOC_DBG_%c_REGISTER reg=0x%02X, value=0x%02X",
546 cmd == VIDIOC_DBG_G_REGISTER ? 'G' : 'S',
547 (unsigned int)reg->reg, reg->val);
551 case VIDIOC_QUERYCAP:
553 struct v4l2_capability *vc=arg;
555 memset(vc, 0, sizeof(*vc));
556 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
557 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
559 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
560 sizeof(vc->bus_info));
561 vc->version = USBVISION_DRIVER_VERSION;
562 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
566 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
567 PDEBUG(DBG_IOCTL, "VIDIOC_QUERYCAP");
570 case VIDIOC_ENUMINPUT:
572 struct v4l2_input *vi = arg;
575 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
577 if (usbvision->have_tuner) {
581 chan = vi->index + 1; //skip Television string
585 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
586 strcpy(vi->name, "White Video Input");
589 strcpy(vi->name, "Television");
590 vi->type = V4L2_INPUT_TYPE_TUNER;
593 vi->std = V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM;
597 vi->type = V4L2_INPUT_TYPE_CAMERA;
598 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
599 strcpy(vi->name, "Green Video Input");
602 strcpy(vi->name, "Composite Video Input");
604 vi->std = V4L2_STD_PAL;
607 vi->type = V4L2_INPUT_TYPE_CAMERA;
608 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
609 strcpy(vi->name, "Yellow Video Input");
612 strcpy(vi->name, "S-Video Input");
614 vi->std = V4L2_STD_PAL;
617 vi->type = V4L2_INPUT_TYPE_CAMERA;
618 strcpy(vi->name, "Red Video Input");
619 vi->std = V4L2_STD_PAL;
622 PDEBUG(DBG_IOCTL, "VIDIOC_ENUMINPUT name=%s:%d tuners=%d type=%d norm=%x",
623 vi->name, vi->index, vi->tuner,vi->type,(int)vi->std);
628 struct v4l2_standard *e = arg;
635 ret = v4l2_video_std_construct(e, tvnorms[e->index].id,
636 tvnorms[e->index].name);
645 *input = usbvision->ctl_input;
651 if ((*input >= usbvision->video_inputs) || (*input < 0) )
653 usbvision->ctl_input = *input;
655 down(&usbvision->lock);
656 usbvision_muxsel(usbvision, usbvision->ctl_input);
657 usbvision_set_input(usbvision);
658 usbvision_set_output(usbvision, usbvision->curwidth, usbvision->curheight);
659 up(&usbvision->lock);
664 v4l2_std_id *id = arg;
666 *id = usbvision->tvnorm->id;
668 PDEBUG(DBG_IOCTL, "VIDIOC_G_STD std_id=%s", usbvision->tvnorm->name);
673 v4l2_std_id *id = arg;
676 for (i = 0; i < TVNORMS; i++)
677 if (*id == tvnorms[i].id)
680 for (i = 0; i < TVNORMS; i++)
681 if (*id & tvnorms[i].id)
686 down(&usbvision->lock);
687 usbvision->tvnorm = &tvnorms[i];
689 call_i2c_clients(usbvision, VIDIOC_S_STD,
690 &usbvision->tvnorm->id);
692 up(&usbvision->lock);
694 PDEBUG(DBG_IOCTL, "VIDIOC_S_STD std_id=%s", usbvision->tvnorm->name);
699 struct v4l2_tuner *vt = arg;
701 if (!usbvision->have_tuner || vt->index) // Only tuner 0
703 strcpy(vt->name, "Television");
704 /* Let clients fill in the remainder of this struct */
705 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
707 PDEBUG(DBG_IOCTL, "VIDIOC_G_TUNER signal=%x, afc=%x",vt->signal,vt->afc);
712 struct v4l2_tuner *vt = arg;
714 // Only no or one tuner for now
715 if (!usbvision->have_tuner || vt->index)
717 /* let clients handle this */
718 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
720 PDEBUG(DBG_IOCTL, "VIDIOC_S_TUNER");
723 case VIDIOC_G_FREQUENCY:
725 struct v4l2_frequency *freq = arg;
727 freq->tuner = 0; // Only one tuner
728 freq->type = V4L2_TUNER_ANALOG_TV;
729 freq->frequency = usbvision->freq;
730 PDEBUG(DBG_IOCTL, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
733 case VIDIOC_S_FREQUENCY:
735 struct v4l2_frequency *freq = arg;
737 // Only no or one tuner for now
738 if (!usbvision->have_tuner || freq->tuner)
741 usbvision->freq = freq->frequency;
742 call_i2c_clients(usbvision, cmd, freq);
743 PDEBUG(DBG_IOCTL, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)freq->frequency);
748 struct v4l2_audio *v = arg;
749 memset(v,0, sizeof(v));
750 strcpy(v->name, "TV");
751 PDEBUG(DBG_IOCTL, "VIDIOC_G_AUDIO");
756 struct v4l2_audio *v = arg;
760 PDEBUG(DBG_IOCTL, "VIDIOC_S_AUDIO");
763 case VIDIOC_QUERYCTRL:
765 struct v4l2_queryctrl *ctrl = arg;
768 memset(ctrl,0,sizeof(*ctrl));
771 call_i2c_clients(usbvision, cmd, arg);
778 PDEBUG(DBG_IOCTL,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
782 struct v4l2_control *ctrl = arg;
783 PDEBUG(DBG_IOCTL,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
784 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
789 struct v4l2_control *ctrl = arg;
791 PDEBUG(DBG_IOCTL, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
792 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
797 struct v4l2_requestbuffers *vr = arg;
800 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
802 // Check input validity : the user must do a VIDEO CAPTURE and MMAP method.
803 if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
804 (vr->memory != V4L2_MEMORY_MMAP))
807 if(usbvision->streaming == Stream_On) {
808 if ((ret = usbvision_stream_interrupt(usbvision)))
812 usbvision_empty_framequeues(usbvision);
814 usbvision->curFrame = NULL;
816 PDEBUG(DBG_IOCTL, "VIDIOC_REQBUFS count=%d",vr->count);
819 case VIDIOC_QUERYBUF:
821 struct v4l2_buffer *vb = arg;
822 struct usbvision_frame *frame;
824 // FIXME : must control that buffers are mapped (VIDIOC_REQBUFS has been called)
826 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
829 if(vb->index>=USBVISION_NUMFRAMES) {
832 // Updating the corresponding frame state
834 frame = &usbvision->frame[vb->index];
835 if(frame->grabstate >= FrameState_Ready)
836 vb->flags |= V4L2_BUF_FLAG_QUEUED;
837 if(frame->grabstate >= FrameState_Done)
838 vb->flags |= V4L2_BUF_FLAG_DONE;
839 if(frame->grabstate == FrameState_Unused)
840 vb->flags |= V4L2_BUF_FLAG_MAPPED;
841 vb->memory = V4L2_MEMORY_MMAP;
843 vb->m.offset = vb->index*usbvision->max_frame_size;
845 vb->memory = V4L2_MEMORY_MMAP;
846 vb->field = V4L2_FIELD_NONE;
847 vb->length = usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel;
848 vb->timestamp = usbvision->frame[vb->index].timestamp;
849 vb->sequence = usbvision->frame[vb->index].sequence;
854 struct v4l2_buffer *vb = arg;
855 struct usbvision_frame *frame;
856 unsigned long lock_flags;
858 // FIXME : works only on VIDEO_CAPTURE MODE, MMAP.
859 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
862 if(vb->index>=USBVISION_NUMFRAMES) {
866 frame = &usbvision->frame[vb->index];
868 if (frame->grabstate != FrameState_Unused) {
872 /* Mark it as ready and enqueue frame */
873 frame->grabstate = FrameState_Ready;
874 frame->scanstate = ScanState_Scanning;
875 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
877 vb->flags &= ~V4L2_BUF_FLAG_DONE;
879 /* set v4l2_format index */
880 frame->v4l2_format = usbvision->palette;
882 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
883 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
884 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
886 PDEBUG(DBG_IOCTL, "VIDIOC_QBUF frame #%d",vb->index);
891 struct v4l2_buffer *vb = arg;
893 struct usbvision_frame *f;
894 unsigned long lock_flags;
896 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
899 if (list_empty(&(usbvision->outqueue))) {
900 if (usbvision->streaming == Stream_Idle)
902 ret = wait_event_interruptible
903 (usbvision->wait_frame,
904 !list_empty(&(usbvision->outqueue)));
909 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
910 f = list_entry(usbvision->outqueue.next,
911 struct usbvision_frame, frame);
912 list_del(usbvision->outqueue.next);
913 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
915 f->grabstate = FrameState_Unused;
917 vb->memory = V4L2_MEMORY_MMAP;
918 vb->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_QUEUED | V4L2_BUF_FLAG_DONE;
919 vb->index = f->index;
920 vb->sequence = f->sequence;
921 vb->timestamp = f->timestamp;
922 vb->field = V4L2_FIELD_NONE;
923 vb->bytesused = f->scanlength;
927 case VIDIOC_STREAMON:
929 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
931 usbvision->streaming = Stream_On;
933 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
935 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMON");
939 case VIDIOC_STREAMOFF:
942 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
944 if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
947 if(usbvision->streaming == Stream_On) {
948 usbvision_stream_interrupt(usbvision);
949 // Stop all video streamings
950 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
952 usbvision_empty_framequeues(usbvision);
954 PDEBUG(DBG_IOCTL, "VIDIOC_STREAMOFF");
957 case VIDIOC_ENUM_FMT:
959 struct v4l2_fmtdesc *vfd = arg;
961 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
965 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
966 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
967 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
968 memset(vfd->reserved, 0, sizeof(vfd->reserved));
973 struct v4l2_format *vf = arg;
976 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
978 vf->fmt.pix.width = usbvision->curwidth;
979 vf->fmt.pix.height = usbvision->curheight;
980 vf->fmt.pix.pixelformat = usbvision->palette.format;
981 vf->fmt.pix.bytesperline = usbvision->curwidth*usbvision->palette.bytes_per_pixel;
982 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
983 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
984 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
985 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT w=%d, h=%d, format=%s",
986 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
990 PDEBUG(DBG_IOCTL, "VIDIOC_G_FMT invalid type %d",vf->type);
998 struct v4l2_format *vf = arg;
1002 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1004 /* Find requested format in available ones */
1005 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1006 if(vf->fmt.pix.pixelformat == usbvision_v4l2_format[formatIdx].format) {
1007 usbvision->palette = usbvision_v4l2_format[formatIdx];
1012 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1015 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1016 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1018 vf->fmt.pix.bytesperline = vf->fmt.pix.width*usbvision->palette.bytes_per_pixel;
1019 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1021 if(cmd == VIDIOC_TRY_FMT) {
1022 PDEBUG(DBG_IOCTL, "VIDIOC_TRY_FMT grabdisplay w=%d, h=%d, format=%s",
1023 vf->fmt.pix.width, vf->fmt.pix.height,usbvision->palette.desc);
1027 /* stop io in case it is already in progress */
1028 if(usbvision->streaming == Stream_On) {
1029 if ((ret = usbvision_stream_interrupt(usbvision)))
1032 usbvision_empty_framequeues(usbvision);
1034 usbvision->curFrame = NULL;
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);
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);
1050 return -ENOIOCTLCMD;
1055 static int usbvision_v4l2_ioctl(struct inode *inode, struct file *file,
1056 unsigned int cmd, unsigned long arg)
1058 return video_usercopy(inode, file, cmd, arg, usbvision_v4l2_do_ioctl);
1062 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1063 size_t count, loff_t *ppos)
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;
1071 struct usbvision_frame *frame;
1073 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__, (unsigned long)count, noblock);
1075 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1078 /* no stream is running, make it running ! */
1079 usbvision->streaming = Stream_On;
1080 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1082 /* First, enqueue as many frames as possible (like a user of VIDIOC_QBUF would do) */
1083 for(i=0;i<USBVISION_NUMFRAMES;i++) {
1084 frame = &usbvision->frame[i];
1085 if(frame->grabstate == FrameState_Unused) {
1086 /* Mark it as ready and enqueue frame */
1087 frame->grabstate = FrameState_Ready;
1088 frame->scanstate = ScanState_Scanning;
1089 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
1091 /* set v4l2_format index */
1092 frame->v4l2_format = usbvision->palette;
1094 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1095 list_add_tail(&frame->frame, &usbvision->inqueue);
1096 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1100 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1101 if (list_empty(&(usbvision->outqueue))) {
1105 ret = wait_event_interruptible
1106 (usbvision->wait_frame,
1107 !list_empty(&(usbvision->outqueue)));
1112 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1113 frame = list_entry(usbvision->outqueue.next,
1114 struct usbvision_frame, frame);
1115 list_del(usbvision->outqueue.next);
1116 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1118 /* An error returns an empty frame */
1119 if (frame->grabstate == FrameState_Error) {
1120 frame->bytes_read = 0;
1124 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld", __FUNCTION__,
1125 frame->index, frame->bytes_read, frame->scanlength);
1127 /* copy bytes to user space; we allow for partials reads */
1128 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1129 count = frame->scanlength - frame->bytes_read;
1131 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1135 frame->bytes_read += count;
1136 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld", __FUNCTION__,
1137 (unsigned long)count, frame->bytes_read);
1139 // For now, forget the frame if it has not been read in one shot.
1140 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1141 frame->bytes_read = 0;
1143 /* Mark it as available to be used again. */
1144 frame->grabstate = FrameState_Unused;
1150 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1152 unsigned long size = vma->vm_end - vma->vm_start,
1153 start = vma->vm_start;
1157 struct video_device *dev = video_devdata(file);
1158 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1160 down(&usbvision->lock);
1162 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1163 up(&usbvision->lock);
1167 if (!(vma->vm_flags & VM_WRITE) ||
1168 size != PAGE_ALIGN(usbvision->curwidth*usbvision->curheight*usbvision->palette.bytes_per_pixel)) {
1169 up(&usbvision->lock);
1173 for (i = 0; i < USBVISION_NUMFRAMES; i++) {
1174 if (((usbvision->max_frame_size*i) >> PAGE_SHIFT) == vma->vm_pgoff)
1177 if (i == USBVISION_NUMFRAMES) {
1178 PDEBUG(DBG_MMAP, "mmap: user supplied mapping address is out of range");
1179 up(&usbvision->lock);
1183 /* VM_IO is eventually going to replace PageReserved altogether */
1184 vma->vm_flags |= VM_IO;
1185 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1187 pos = usbvision->frame[i].data;
1190 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1191 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1192 up(&usbvision->lock);
1200 up(&usbvision->lock);
1206 * Here comes the stuff for radio on usbvision based devices
1209 static int usbvision_radio_open(struct inode *inode, struct file *file)
1211 struct video_device *dev = video_devdata(file);
1212 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1213 struct v4l2_frequency freq;
1216 PDEBUG(DBG_IO, "%s:", __FUNCTION__);
1218 down(&usbvision->lock);
1220 if (usbvision->user) {
1221 err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
1226 usbvision_reset_powerOffTimer(usbvision);
1227 if (usbvision->power == 0) {
1228 usbvision_power_on(usbvision);
1229 usbvision_init_i2c(usbvision);
1233 // If so far no errors then we shall start the radio
1234 usbvision->radio = 1;
1235 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1236 freq.frequency = 1517; //SWR3 @ 94.8MHz
1237 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, &freq);
1238 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1243 if (PowerOnAtOpen) {
1244 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
1245 usbvision_power_off(usbvision);
1246 usbvision->initialized = 0;
1249 up(&usbvision->lock);
1254 static int usbvision_radio_close(struct inode *inode, struct file *file)
1256 struct video_device *dev = video_devdata(file);
1257 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1262 down(&usbvision->lock);
1264 usbvision_audio_off(usbvision);
1268 if (PowerOnAtOpen) {
1269 usbvision_set_powerOffTimer(usbvision);
1270 usbvision->initialized = 0;
1273 up(&usbvision->lock);
1275 if (usbvision->remove_pending) {
1276 printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
1277 usbvision_release(usbvision);
1281 PDEBUG(DBG_IO, "success");
1286 static int usbvision_do_radio_ioctl(struct inode *inode, struct file *file,
1287 unsigned int cmd, void *arg)
1289 struct video_device *dev = video_devdata(file);
1290 struct usb_usbvision *usbvision = (struct usb_usbvision *) video_get_drvdata(dev);
1292 if (!USBVISION_IS_OPERATIONAL(usbvision))
1296 case VIDIOC_QUERYCAP:
1298 struct v4l2_capability *vc=arg;
1300 memset(vc, 0, sizeof(*vc));
1301 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
1302 strlcpy(vc->card, usbvision_device_data[usbvision->DevModel].ModelString,
1304 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
1305 sizeof(vc->bus_info));
1306 vc->version = USBVISION_DRIVER_VERSION;
1307 vc->capabilities = (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
1308 PDEBUG(DBG_IO, "VIDIOC_QUERYCAP");
1311 case VIDIOC_QUERYCTRL:
1313 struct v4l2_queryctrl *ctrl = arg;
1316 memset(ctrl,0,sizeof(*ctrl));
1319 call_i2c_clients(usbvision, cmd, arg);
1320 PDEBUG(DBG_IO,"VIDIOC_QUERYCTRL id=%x value=%x",ctrl->id,ctrl->type);
1330 struct v4l2_control *ctrl = arg;
1332 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
1333 PDEBUG(DBG_IO,"VIDIOC_G_CTRL id=%x value=%x",ctrl->id,ctrl->value);
1338 struct v4l2_control *ctrl = arg;
1340 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
1341 PDEBUG(DBG_IO, "VIDIOC_S_CTRL id=%x value=%x",ctrl->id,ctrl->value);
1344 case VIDIOC_G_TUNER:
1346 struct v4l2_tuner *t = arg;
1351 memset(t,0,sizeof(*t));
1352 strcpy(t->name, "Radio");
1353 t->type = V4L2_TUNER_RADIO;
1355 /* Let clients fill in the remainder of this struct */
1356 call_i2c_clients(usbvision,VIDIOC_G_TUNER,t);
1357 PDEBUG(DBG_IO, "VIDIOC_G_TUNER signal=%x, afc=%x",t->signal,t->afc);
1360 case VIDIOC_S_TUNER:
1362 struct v4l2_tuner *vt = arg;
1364 // Only no or one tuner for now
1365 if (!usbvision->have_tuner || vt->index)
1367 /* let clients handle this */
1368 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
1370 PDEBUG(DBG_IO, "VIDIOC_S_TUNER");
1373 case VIDIOC_G_AUDIO:
1375 struct v4l2_audio *a = arg;
1377 memset(a,0,sizeof(*a));
1378 strcpy(a->name,"Radio");
1379 PDEBUG(DBG_IO, "VIDIOC_G_AUDIO");
1382 case VIDIOC_S_AUDIO:
1383 case VIDIOC_S_INPUT:
1387 case VIDIOC_G_FREQUENCY:
1389 struct v4l2_frequency *f = arg;
1391 memset(f,0,sizeof(*f));
1393 f->type = V4L2_TUNER_RADIO;
1394 f->frequency = usbvision->freq;
1395 call_i2c_clients(usbvision, cmd, f);
1396 PDEBUG(DBG_IO, "VIDIOC_G_FREQUENCY freq=0x%X", (unsigned)f->frequency);
1400 case VIDIOC_S_FREQUENCY:
1402 struct v4l2_frequency *f = arg;
1406 usbvision->freq = f->frequency;
1407 call_i2c_clients(usbvision, cmd, f);
1408 PDEBUG(DBG_IO, "VIDIOC_S_FREQUENCY freq=0x%X", (unsigned)f->frequency);
1414 PDEBUG(DBG_IO, "%s: Unknown command %x", __FUNCTION__, cmd);
1415 return -ENOIOCTLCMD;
1422 static int usbvision_radio_ioctl(struct inode *inode, struct file *file,
1423 unsigned int cmd, unsigned long arg)
1425 return video_usercopy(inode, file, cmd, arg, usbvision_do_radio_ioctl);
1430 * Here comes the stuff for vbi on usbvision based devices
1433 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1440 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1446 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1447 unsigned int cmd, void *arg)
1453 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1454 unsigned int cmd, unsigned long arg)
1456 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1461 // Video registration stuff
1465 static const struct file_operations usbvision_fops = {
1466 .owner = THIS_MODULE,
1467 .open = usbvision_v4l2_open,
1468 .release = usbvision_v4l2_close,
1469 .read = usbvision_v4l2_read,
1470 .mmap = usbvision_v4l2_mmap,
1471 .ioctl = usbvision_v4l2_ioctl,
1472 .llseek = no_llseek,
1474 static struct video_device usbvision_video_template = {
1475 .owner = THIS_MODULE,
1476 .type = VID_TYPE_TUNER | VID_TYPE_CAPTURE,
1477 .hardware = VID_HARDWARE_USBVISION,
1478 .fops = &usbvision_fops,
1479 .name = "usbvision-video",
1480 .release = video_device_release,
1486 static const struct file_operations usbvision_radio_fops = {
1487 .owner = THIS_MODULE,
1488 .open = usbvision_radio_open,
1489 .release = usbvision_radio_close,
1490 .ioctl = usbvision_radio_ioctl,
1491 .llseek = no_llseek,
1494 static struct video_device usbvision_radio_template=
1496 .owner = THIS_MODULE,
1497 .type = VID_TYPE_TUNER,
1498 .hardware = VID_HARDWARE_USBVISION,
1499 .fops = &usbvision_radio_fops,
1500 .release = video_device_release,
1501 .name = "usbvision-radio",
1507 static const struct file_operations usbvision_vbi_fops = {
1508 .owner = THIS_MODULE,
1509 .open = usbvision_vbi_open,
1510 .release = usbvision_vbi_close,
1511 .ioctl = usbvision_vbi_ioctl,
1512 .llseek = no_llseek,
1515 static struct video_device usbvision_vbi_template=
1517 .owner = THIS_MODULE,
1518 .type = VID_TYPE_TUNER,
1519 .hardware = VID_HARDWARE_USBVISION,
1520 .fops = &usbvision_vbi_fops,
1521 .release = video_device_release,
1522 .name = "usbvision-vbi",
1527 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1528 struct video_device *vdev_template,
1531 struct usb_device *usb_dev = usbvision->dev;
1532 struct video_device *vdev;
1534 if (usb_dev == NULL) {
1535 err("%s: usbvision->dev is not set", __FUNCTION__);
1539 vdev = video_device_alloc();
1543 *vdev = *vdev_template;
1544 // vdev->minor = -1;
1545 vdev->dev = &usb_dev->dev;
1546 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1547 video_set_drvdata(vdev, usbvision);
1551 // unregister video4linux devices
1552 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1555 if (usbvision->vbi) {
1556 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]", usbvision->vbi->minor & 0x1f);
1557 if (usbvision->vbi->minor != -1) {
1558 video_unregister_device(usbvision->vbi);
1561 video_device_release(usbvision->vbi);
1563 usbvision->vbi = NULL;
1567 if (usbvision->rdev) {
1568 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]", usbvision->rdev->minor & 0x1f);
1569 if (usbvision->rdev->minor != -1) {
1570 video_unregister_device(usbvision->rdev);
1573 video_device_release(usbvision->rdev);
1575 usbvision->rdev = NULL;
1579 if (usbvision->vdev) {
1580 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]", usbvision->vdev->minor & 0x1f);
1581 if (usbvision->vdev->minor != -1) {
1582 video_unregister_device(usbvision->vdev);
1585 video_device_release(usbvision->vdev);
1587 usbvision->vdev = NULL;
1591 // register video4linux devices
1592 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1595 usbvision->vdev = usbvision_vdev_init(usbvision, &usbvision_video_template, "USBVision Video");
1596 if (usbvision->vdev == NULL) {
1599 if (video_register_device(usbvision->vdev, VFL_TYPE_GRABBER, video_nr)<0) {
1602 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n", usbvision->nr,usbvision->vdev->minor & 0x1f);
1605 if (usbvision_device_data[usbvision->DevModel].Radio) {
1606 // usbvision has radio
1607 usbvision->rdev = usbvision_vdev_init(usbvision, &usbvision_radio_template, "USBVision Radio");
1608 if (usbvision->rdev == NULL) {
1611 if (video_register_device(usbvision->rdev, VFL_TYPE_RADIO, radio_nr)<0) {
1614 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n", usbvision->nr, usbvision->rdev->minor & 0x1f);
1617 if (usbvision_device_data[usbvision->DevModel].vbi) {
1618 usbvision->vbi = usbvision_vdev_init(usbvision, &usbvision_vbi_template, "USBVision VBI");
1619 if (usbvision->vdev == NULL) {
1622 if (video_register_device(usbvision->vbi, VFL_TYPE_VBI, vbi_nr)<0) {
1625 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n", usbvision->nr,usbvision->vbi->minor & 0x1f);
1631 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1632 usbvision_unregister_video(usbvision);
1639 * This code allocates the struct usb_usbvision. It is filled with default values.
1641 * Returns NULL on error, a pointer to usb_usbvision else.
1644 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1646 struct usb_usbvision *usbvision;
1648 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) == NULL) {
1652 usbvision->dev = dev;
1654 init_MUTEX(&usbvision->lock); /* to 1 == available */
1656 // prepare control urb for control messages during interrupts
1657 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1658 if (usbvision->ctrlUrb == NULL) {
1661 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1662 init_MUTEX(&usbvision->ctrlUrbLock); /* to 1 == available */
1664 usbvision_init_powerOffTimer(usbvision);
1669 if (usbvision && usbvision->ctrlUrb) {
1670 usb_free_urb(usbvision->ctrlUrb);
1679 * usbvision_release()
1681 * This code does final release of struct usb_usbvision. This happens
1682 * after the device is disconnected -and- all clients closed their files.
1685 static void usbvision_release(struct usb_usbvision *usbvision)
1687 PDEBUG(DBG_PROBE, "");
1689 down(&usbvision->lock);
1691 usbvision_reset_powerOffTimer(usbvision);
1693 usbvision->initialized = 0;
1695 up(&usbvision->lock);
1697 usbvision_remove_sysfs(usbvision->vdev);
1698 usbvision_unregister_video(usbvision);
1700 if (usbvision->ctrlUrb) {
1701 usb_free_urb(usbvision->ctrlUrb);
1706 PDEBUG(DBG_PROBE, "success");
1710 /******************************** usb interface *****************************************/
1712 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1716 if (usbvision == NULL)
1719 model = usbvision->DevModel;
1720 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1722 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2 >= 0) {
1723 usbvision->Vin_Reg2_Preset = usbvision_device_data[usbvision->DevModel].Vin_Reg2 & 0xff;
1725 usbvision->Vin_Reg2_Preset = 0;
1728 for (i = 0; i < TVNORMS; i++)
1729 if (usbvision_device_data[model].VideoNorm == tvnorms[i].mode)
1733 usbvision->tvnorm = &tvnorms[i]; /* set default norm */
1735 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1736 usbvision->ctl_input = 0;
1738 /* This should be here to make i2c clients to be able to register */
1739 usbvision_audio_off(usbvision); //first switch off audio
1740 if (!PowerOnAtOpen) {
1741 usbvision_power_on(usbvision); //and then power up the noisy tuner
1742 usbvision_init_i2c(usbvision);
1749 * This procedure queries device descriptor and accepts the interface
1750 * if it looks like USBVISION video device
1753 static int __devinit usbvision_probe(struct usb_interface *intf, const struct usb_device_id *devid)
1755 struct usb_device *dev = interface_to_usbdev(intf);
1756 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1757 const struct usb_host_interface *interface;
1758 struct usb_usbvision *usbvision = NULL;
1759 const struct usb_endpoint_descriptor *endpoint;
1762 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1763 dev->descriptor.idVendor, dev->descriptor.idProduct, ifnum);
1764 /* Is it an USBVISION video dev? */
1766 for(model = 0; usbvision_device_data[model].idVendor; model++) {
1767 if (le16_to_cpu(dev->descriptor.idVendor) != usbvision_device_data[model].idVendor) {
1770 if (le16_to_cpu(dev->descriptor.idProduct) != usbvision_device_data[model].idProduct) {
1774 printk(KERN_INFO "%s: %s found\n", __FUNCTION__, usbvision_device_data[model].ModelString);
1778 if (usbvision_device_data[model].idVendor == 0) {
1779 return -ENODEV; //no matching device
1781 if (usbvision_device_data[model].Interface >= 0) {
1782 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1785 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1787 endpoint = &interface->endpoint[1].desc;
1788 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC) {
1789 err("%s: interface %d. has non-ISO endpoint!", __FUNCTION__, ifnum);
1790 err("%s: Endpoint attribures %d", __FUNCTION__, endpoint->bmAttributes);
1793 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
1794 err("%s: interface %d. has ISO OUT endpoint!", __FUNCTION__, ifnum);
1800 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1801 err("%s: couldn't allocate USBVision struct", __FUNCTION__);
1804 if (dev->descriptor.bNumConfigurations > 1) {
1805 usbvision->bridgeType = BRIDGE_NT1004;
1807 else if (usbvision_device_data[model].ModelString == "Dazzle Fusion Model DVC-90 Rev 1 (SECAM)") {
1808 usbvision->bridgeType = BRIDGE_NT1005;
1811 usbvision->bridgeType = BRIDGE_NT1003;
1813 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1815 down(&usbvision->lock);
1817 usbvision->nr = usbvision_nr++;
1819 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1820 if (usbvision->have_tuner) {
1821 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1824 usbvision->tuner_addr = ADDR_UNSET;
1826 usbvision->DevModel = model;
1827 usbvision->remove_pending = 0;
1828 usbvision->iface = ifnum;
1829 usbvision->ifaceAltInactive = 0;
1830 usbvision->ifaceAltActive = 1;
1831 usbvision->video_endp = endpoint->bEndpointAddress;
1832 usbvision->isocPacketSize = 0;
1833 usbvision->usb_bandwidth = 0;
1834 usbvision->user = 0;
1835 usbvision->streaming = Stream_Off;
1836 usbvision_register_video(usbvision);
1837 usbvision_configure_video(usbvision);
1838 up(&usbvision->lock);
1841 usb_set_intfdata (intf, usbvision);
1842 usbvision_create_sysfs(usbvision->vdev);
1844 PDEBUG(DBG_PROBE, "success");
1850 * usbvision_disconnect()
1852 * This procedure stops all driver activity, deallocates interface-private
1853 * structure (pointed by 'ptr') and after that driver should be removable
1854 * with no ill consequences.
1857 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1859 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1861 PDEBUG(DBG_PROBE, "");
1863 if (usbvision == NULL) {
1864 err("%s: usb_get_intfdata() failed", __FUNCTION__);
1867 usb_set_intfdata (intf, NULL);
1869 down(&usbvision->lock);
1871 // At this time we ask to cancel outstanding URBs
1872 usbvision_stop_isoc(usbvision);
1874 if (usbvision->power) {
1875 usbvision_i2c_usb_del_bus(&usbvision->i2c_adap);
1876 usbvision_power_off(usbvision);
1878 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1880 usb_put_dev(usbvision->dev);
1881 usbvision->dev = NULL; // USB device is no more
1883 up(&usbvision->lock);
1885 if (usbvision->user) {
1886 printk(KERN_INFO "%s: In use, disconnect pending\n", __FUNCTION__);
1887 wake_up_interruptible(&usbvision->wait_frame);
1888 wake_up_interruptible(&usbvision->wait_stream);
1891 usbvision_release(usbvision);
1894 PDEBUG(DBG_PROBE, "success");
1898 static struct usb_driver usbvision_driver = {
1899 .name = "usbvision",
1900 .id_table = usbvision_table,
1901 .probe = usbvision_probe,
1902 .disconnect = usbvision_disconnect
1906 * customdevice_process()
1908 * This procedure preprocesses CustomDevice parameter if any
1911 static void customdevice_process(void)
1913 usbvision_device_data[0]=usbvision_device_data[1];
1914 usbvision_table[0]=usbvision_table[1];
1918 char *parse=CustomDevice;
1920 PDEBUG(DBG_PROBE, "CustomDevide=%s", CustomDevice);
1922 /*format is CustomDevice="0x0573 0x4D31 0 7113 3 PAL 1 1 1 5 -1 -1 -1 -1 -1"
1923 usbvision_device_data[0].idVendor;
1924 usbvision_device_data[0].idProduct;
1925 usbvision_device_data[0].Interface;
1926 usbvision_device_data[0].Codec;
1927 usbvision_device_data[0].VideoChannels;
1928 usbvision_device_data[0].VideoNorm;
1929 usbvision_device_data[0].AudioChannels;
1930 usbvision_device_data[0].Radio;
1931 usbvision_device_data[0].Tuner;
1932 usbvision_device_data[0].TunerType;
1933 usbvision_device_data[0].Vin_Reg1;
1934 usbvision_device_data[0].Vin_Reg2;
1935 usbvision_device_data[0].X_Offset;
1936 usbvision_device_data[0].Y_Offset;
1937 usbvision_device_data[0].Dvi_yuv;
1938 usbvision_device_data[0].ModelString;
1942 usbvision_device_data[0].ModelString="USBVISION Custom Device";
1945 sscanf(parse,"%x",&usbvision_device_data[0].idVendor);
1947 PDEBUG(DBG_PROBE, "idVendor=0x%.4X", usbvision_device_data[0].idVendor);
1949 sscanf(parse,"%x",&usbvision_device_data[0].idProduct);
1951 PDEBUG(DBG_PROBE, "idProduct=0x%.4X", usbvision_device_data[0].idProduct);
1952 sscanf(parse,"%d",&usbvision_device_data[0].Interface);
1954 PDEBUG(DBG_PROBE, "Interface=%d", usbvision_device_data[0].Interface);
1955 sscanf(parse,"%d",&usbvision_device_data[0].Codec);
1957 PDEBUG(DBG_PROBE, "Codec=%d", usbvision_device_data[0].Codec);
1958 sscanf(parse,"%d",&usbvision_device_data[0].VideoChannels);
1960 PDEBUG(DBG_PROBE, "VideoChannels=%d", usbvision_device_data[0].VideoChannels);
1965 PDEBUG(DBG_PROBE, "VideoNorm=PAL");
1966 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL;
1970 PDEBUG(DBG_PROBE, "VideoNorm=SECAM");
1971 usbvision_device_data[0].VideoNorm=V4L2_STD_SECAM;
1975 PDEBUG(DBG_PROBE, "VideoNorm=NTSC");
1976 usbvision_device_data[0].VideoNorm=V4L2_STD_NTSC;
1980 PDEBUG(DBG_PROBE, "VideoNorm=PAL (by default)");
1981 usbvision_device_data[0].VideoNorm=V4L2_STD_PAL;
1986 sscanf(parse,"%d",&usbvision_device_data[0].AudioChannels);
1988 PDEBUG(DBG_PROBE, "AudioChannels=%d", usbvision_device_data[0].AudioChannels);
1989 sscanf(parse,"%d",&usbvision_device_data[0].Radio);
1991 PDEBUG(DBG_PROBE, "Radio=%d", usbvision_device_data[0].Radio);
1992 sscanf(parse,"%d",&usbvision_device_data[0].Tuner);
1994 PDEBUG(DBG_PROBE, "Tuner=%d", usbvision_device_data[0].Tuner);
1995 sscanf(parse,"%d",&usbvision_device_data[0].TunerType);
1997 PDEBUG(DBG_PROBE, "TunerType=%d", usbvision_device_data[0].TunerType);
1998 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg1);
2000 PDEBUG(DBG_PROBE, "Vin_Reg1=%d", usbvision_device_data[0].Vin_Reg1);
2001 sscanf(parse,"%d",&usbvision_device_data[0].Vin_Reg2);
2003 PDEBUG(DBG_PROBE, "Vin_Reg2=%d", usbvision_device_data[0].Vin_Reg2);
2004 sscanf(parse,"%d",&usbvision_device_data[0].X_Offset);
2006 PDEBUG(DBG_PROBE, "X_Offset=%d", usbvision_device_data[0].X_Offset);
2007 sscanf(parse,"%d",&usbvision_device_data[0].Y_Offset);
2009 PDEBUG(DBG_PROBE, "Y_Offset=%d", usbvision_device_data[0].Y_Offset);
2010 sscanf(parse,"%d",&usbvision_device_data[0].Dvi_yuv);
2011 PDEBUG(DBG_PROBE, "Dvi_yuv=%d", usbvision_device_data[0].Dvi_yuv);
2013 //add to usbvision_table also
2014 usbvision_table[0].match_flags=USB_DEVICE_ID_MATCH_DEVICE;
2015 usbvision_table[0].idVendor=usbvision_device_data[0].idVendor;
2016 usbvision_table[0].idProduct=usbvision_device_data[0].idProduct;
2026 * This code is run to initialize the driver.
2029 static int __init usbvision_init(void)
2033 PDEBUG(DBG_PROBE, "");
2035 PDEBUG(DBG_IOCTL, "IOCTL debugging is enabled [video]");
2036 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
2037 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
2038 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
2040 /* disable planar mode support unless compression enabled */
2041 if (isocMode != ISOC_MODE_COMPRESS ) {
2042 // FIXME : not the right way to set supported flag
2043 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
2044 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
2047 customdevice_process();
2049 errCode = usb_register(&usbvision_driver);
2052 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
2053 PDEBUG(DBG_PROBE, "success");
2058 static void __exit usbvision_exit(void)
2060 PDEBUG(DBG_PROBE, "");
2062 usb_deregister(&usbvision_driver);
2063 PDEBUG(DBG_PROBE, "success");
2066 module_init(usbvision_init);
2067 module_exit(usbvision_exit);
2070 * Overrides for Emacs so that we follow Linus's tabbing style.
2071 * ---------------------------------------------------------------------------