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.
40 * Seems impossible, needs a codec interface. Which one?
41 * - Clean up the driver.
42 * - optimization for performance.
43 * - Add Videotext capability (VBI). Working on it.....
44 * - Check audio for other devices
48 #include <linux/version.h>
49 #include <linux/kernel.h>
50 #include <linux/list.h>
51 #include <linux/timer.h>
52 #include <linux/slab.h>
54 #include <linux/utsname.h>
55 #include <linux/highmem.h>
56 #include <linux/vmalloc.h>
57 #include <linux/module.h>
58 #include <linux/init.h>
59 #include <linux/spinlock.h>
61 #include <linux/videodev2.h>
62 #include <linux/video_decoder.h>
63 #include <linux/i2c.h>
65 #include <media/saa7115.h>
66 #include <media/v4l2-common.h>
67 #include <media/v4l2-ioctl.h>
68 #include <media/tuner.h>
70 #include <linux/workqueue.h>
73 #include <linux/kmod.h>
76 #include "usbvision.h"
77 #include "usbvision-cards.h"
79 #define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
80 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,\
89 USBVISION_DRIVER_VERSION_MINOR,\
90 USBVISION_DRIVER_VERSION_PATCHLEVEL)
91 #define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
92 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
93 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
95 #define ENABLE_HEXDUMP 0 /* Enable if you need it */
98 #ifdef USBVISION_DEBUG
99 #define PDEBUG(level, fmt, args...) { \
100 if (video_debug & (level)) \
101 info("[%s:%d] " fmt, __func__, __LINE__ , ## args); \
104 #define PDEBUG(level, fmt, args...) do {} while(0)
108 #define DBG_PROBE 1<<2
109 #define DBG_MMAP 1<<3
112 #define rmspace(str) while(*str==' ') str++;
113 #define goto2next(str) while(*str!=' ') str++; while(*str==' ') str++;
116 /* sequential number of usbvision device */
117 static int usbvision_nr;
119 static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
120 { 1, 1, 8, V4L2_PIX_FMT_GREY , "GREY" },
121 { 1, 2, 16, V4L2_PIX_FMT_RGB565 , "RGB565" },
122 { 1, 3, 24, V4L2_PIX_FMT_RGB24 , "RGB24" },
123 { 1, 4, 32, V4L2_PIX_FMT_RGB32 , "RGB32" },
124 { 1, 2, 16, V4L2_PIX_FMT_RGB555 , "RGB555" },
125 { 1, 2, 16, V4L2_PIX_FMT_YUYV , "YUV422" },
126 { 1, 2, 12, V4L2_PIX_FMT_YVU420 , "YUV420P" }, // 1.5 !
127 { 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
130 /* Function prototypes */
131 static void usbvision_release(struct usb_usbvision *usbvision);
133 /* Default initialization of device driver parameters */
134 /* Set the default format for ISOC endpoint */
135 static int isocMode = ISOC_MODE_COMPRESS;
136 /* Set the default Debug Mode of the device driver */
137 static int video_debug;
138 /* Set the default device to power on at startup */
139 static int PowerOnAtOpen = 1;
140 /* Sequential Number of Video Device */
141 static int video_nr = -1;
142 /* Sequential Number of Radio Device */
143 static int radio_nr = -1;
144 /* Sequential Number of VBI Device */
145 static int vbi_nr = -1;
147 /* Grab parameters for the device driver */
149 /* Showing parameters under SYSFS */
150 module_param(isocMode, int, 0444);
151 module_param(video_debug, int, 0444);
152 module_param(PowerOnAtOpen, int, 0444);
153 module_param(video_nr, int, 0444);
154 module_param(radio_nr, int, 0444);
155 module_param(vbi_nr, int, 0444);
157 MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint. Default: 0x60 (Compression On)");
158 MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver. Default: 0 (Off)");
159 MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened. Default: 1 (On)");
160 MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX). Default: -1 (autodetect)");
161 MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX). Default: -1 (autodetect)");
162 MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX). Default: -1 (autodetect)");
166 MODULE_AUTHOR(DRIVER_AUTHOR);
167 MODULE_DESCRIPTION(DRIVER_DESC);
168 MODULE_LICENSE(DRIVER_LICENSE);
169 MODULE_VERSION(USBVISION_VERSION_STRING);
170 MODULE_ALIAS(DRIVER_ALIAS);
173 /*****************************************************************************/
174 /* SYSFS Code - Copied from the stv680.c usb module. */
175 /* Device information is located at /sys/class/video4linux/video0 */
176 /* Device parameters information is located at /sys/module/usbvision */
177 /* Device USB Information is located at */
178 /* /sys/bus/usb/drivers/USBVision Video Grabber */
179 /*****************************************************************************/
181 #define YES_NO(x) ((x) ? "Yes" : "No")
183 static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
185 struct video_device *vdev =
186 container_of(cd, struct video_device, dev);
187 return video_get_drvdata(vdev);
190 static ssize_t show_version(struct device *cd,
191 struct device_attribute *attr, char *buf)
193 return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
195 static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
197 static ssize_t show_model(struct device *cd,
198 struct device_attribute *attr, char *buf)
200 struct video_device *vdev =
201 container_of(cd, struct video_device, dev);
202 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
203 return sprintf(buf, "%s\n",
204 usbvision_device_data[usbvision->DevModel].ModelString);
206 static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
208 static ssize_t show_hue(struct device *cd,
209 struct device_attribute *attr, char *buf)
211 struct video_device *vdev =
212 container_of(cd, struct video_device, dev);
213 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
214 struct v4l2_control ctrl;
215 ctrl.id = V4L2_CID_HUE;
218 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
219 return sprintf(buf, "%d\n", ctrl.value);
221 static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
223 static ssize_t show_contrast(struct device *cd,
224 struct device_attribute *attr, char *buf)
226 struct video_device *vdev =
227 container_of(cd, struct video_device, dev);
228 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
229 struct v4l2_control ctrl;
230 ctrl.id = V4L2_CID_CONTRAST;
233 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
234 return sprintf(buf, "%d\n", ctrl.value);
236 static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
238 static ssize_t show_brightness(struct device *cd,
239 struct device_attribute *attr, char *buf)
241 struct video_device *vdev =
242 container_of(cd, struct video_device, dev);
243 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
244 struct v4l2_control ctrl;
245 ctrl.id = V4L2_CID_BRIGHTNESS;
248 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
249 return sprintf(buf, "%d\n", ctrl.value);
251 static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
253 static ssize_t show_saturation(struct device *cd,
254 struct device_attribute *attr, char *buf)
256 struct video_device *vdev =
257 container_of(cd, struct video_device, dev);
258 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
259 struct v4l2_control ctrl;
260 ctrl.id = V4L2_CID_SATURATION;
263 call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
264 return sprintf(buf, "%d\n", ctrl.value);
266 static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
268 static ssize_t show_streaming(struct device *cd,
269 struct device_attribute *attr, char *buf)
271 struct video_device *vdev =
272 container_of(cd, struct video_device, dev);
273 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
274 return sprintf(buf, "%s\n",
275 YES_NO(usbvision->streaming==Stream_On?1:0));
277 static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
279 static ssize_t show_compression(struct device *cd,
280 struct device_attribute *attr, char *buf)
282 struct video_device *vdev =
283 container_of(cd, struct video_device, dev);
284 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
285 return sprintf(buf, "%s\n",
286 YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
288 static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
290 static ssize_t show_device_bridge(struct device *cd,
291 struct device_attribute *attr, char *buf)
293 struct video_device *vdev =
294 container_of(cd, struct video_device, dev);
295 struct usb_usbvision *usbvision = video_get_drvdata(vdev);
296 return sprintf(buf, "%d\n", usbvision->bridgeType);
298 static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
300 static void usbvision_create_sysfs(struct video_device *vdev)
306 res = device_create_file(&vdev->dev, &dev_attr_version);
309 res = device_create_file(&vdev->dev, &dev_attr_model);
312 res = device_create_file(&vdev->dev, &dev_attr_hue);
315 res = device_create_file(&vdev->dev, &dev_attr_contrast);
318 res = device_create_file(&vdev->dev, &dev_attr_brightness);
321 res = device_create_file(&vdev->dev, &dev_attr_saturation);
324 res = device_create_file(&vdev->dev, &dev_attr_streaming);
327 res = device_create_file(&vdev->dev, &dev_attr_compression);
330 res = device_create_file(&vdev->dev, &dev_attr_bridge);
335 err("%s error: %d\n", __func__, res);
338 static void usbvision_remove_sysfs(struct video_device *vdev)
341 device_remove_file(&vdev->dev, &dev_attr_version);
342 device_remove_file(&vdev->dev, &dev_attr_model);
343 device_remove_file(&vdev->dev, &dev_attr_hue);
344 device_remove_file(&vdev->dev, &dev_attr_contrast);
345 device_remove_file(&vdev->dev, &dev_attr_brightness);
346 device_remove_file(&vdev->dev, &dev_attr_saturation);
347 device_remove_file(&vdev->dev, &dev_attr_streaming);
348 device_remove_file(&vdev->dev, &dev_attr_compression);
349 device_remove_file(&vdev->dev, &dev_attr_bridge);
356 * This is part of Video 4 Linux API. The driver can be opened by one
357 * client only (checks internal counter 'usbvision->user'). The procedure
358 * then allocates buffers needed for video processing.
361 static int usbvision_v4l2_open(struct inode *inode, struct file *file)
363 struct video_device *dev = video_devdata(file);
364 struct usb_usbvision *usbvision =
365 (struct usb_usbvision *) video_get_drvdata(dev);
368 PDEBUG(DBG_IO, "open");
371 usbvision_reset_powerOffTimer(usbvision);
376 /* Allocate memory for the scratch ring buffer */
377 errCode = usbvision_scratch_alloc(usbvision);
378 if (isocMode==ISOC_MODE_COMPRESS) {
379 /* Allocate intermediate decompression buffers
381 errCode = usbvision_decompress_alloc(usbvision);
384 /* Deallocate all buffers if trouble */
385 usbvision_scratch_free(usbvision);
386 usbvision_decompress_free(usbvision);
390 /* If so far no errors then we shall start the camera */
392 mutex_lock(&usbvision->lock);
393 if (usbvision->power == 0) {
394 usbvision_power_on(usbvision);
395 usbvision_i2c_register(usbvision);
398 /* Send init sequence only once, it's large! */
399 if (!usbvision->initialized) {
401 setup_ok = usbvision_setup(usbvision,isocMode);
403 usbvision->initialized = 1;
409 usbvision_begin_streaming(usbvision);
410 errCode = usbvision_init_isoc(usbvision);
411 /* device must be initialized before isoc transfer */
412 usbvision_muxsel(usbvision,0);
416 usbvision_i2c_unregister(usbvision);
417 usbvision_power_off(usbvision);
418 usbvision->initialized = 0;
421 mutex_unlock(&usbvision->lock);
425 usbvision_empty_framequeues(usbvision);
427 PDEBUG(DBG_IO, "success");
433 * usbvision_v4l2_close()
435 * This is part of Video 4 Linux API. The procedure
436 * stops streaming and deallocates all buffers that were earlier
437 * allocated in usbvision_v4l2_open().
440 static int usbvision_v4l2_close(struct inode *inode, struct file *file)
442 struct video_device *dev = video_devdata(file);
443 struct usb_usbvision *usbvision =
444 (struct usb_usbvision *) video_get_drvdata(dev);
446 PDEBUG(DBG_IO, "close");
447 mutex_lock(&usbvision->lock);
449 usbvision_audio_off(usbvision);
450 usbvision_restart_isoc(usbvision);
451 usbvision_stop_isoc(usbvision);
453 usbvision_decompress_free(usbvision);
454 usbvision_frames_free(usbvision);
455 usbvision_empty_framequeues(usbvision);
456 usbvision_scratch_free(usbvision);
461 /* power off in a little while
462 to avoid off/on every close/open short sequences */
463 usbvision_set_powerOffTimer(usbvision);
464 usbvision->initialized = 0;
467 mutex_unlock(&usbvision->lock);
469 if (usbvision->remove_pending) {
470 printk(KERN_INFO "%s: Final disconnect\n", __func__);
471 usbvision_release(usbvision);
474 PDEBUG(DBG_IO, "success");
482 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
485 #ifdef CONFIG_VIDEO_ADV_DEBUG
486 static int vidioc_g_register (struct file *file, void *priv,
487 struct v4l2_register *reg)
489 struct video_device *dev = video_devdata(file);
490 struct usb_usbvision *usbvision =
491 (struct usb_usbvision *) video_get_drvdata(dev);
494 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
496 /* NT100x has a 8-bit register space */
497 errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
499 err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
507 static int vidioc_s_register (struct file *file, void *priv,
508 struct v4l2_register *reg)
510 struct video_device *dev = video_devdata(file);
511 struct usb_usbvision *usbvision =
512 (struct usb_usbvision *) video_get_drvdata(dev);
515 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
517 /* NT100x has a 8-bit register space */
518 errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
520 err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
528 static int vidioc_querycap (struct file *file, void *priv,
529 struct v4l2_capability *vc)
531 struct video_device *dev = video_devdata(file);
532 struct usb_usbvision *usbvision =
533 (struct usb_usbvision *) video_get_drvdata(dev);
535 strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
537 usbvision_device_data[usbvision->DevModel].ModelString,
539 strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
540 sizeof(vc->bus_info));
541 vc->version = USBVISION_DRIVER_VERSION;
542 vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
546 (usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
550 static int vidioc_enum_input (struct file *file, void *priv,
551 struct v4l2_input *vi)
553 struct video_device *dev = video_devdata(file);
554 struct usb_usbvision *usbvision =
555 (struct usb_usbvision *) video_get_drvdata(dev);
558 if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
560 if (usbvision->have_tuner) {
563 chan = vi->index + 1; /*skip Television string*/
565 /* Determine the requested input characteristics
566 specific for each usbvision card model */
569 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
570 strcpy(vi->name, "White Video Input");
572 strcpy(vi->name, "Television");
573 vi->type = V4L2_INPUT_TYPE_TUNER;
576 vi->std = USBVISION_NORMS;
580 vi->type = V4L2_INPUT_TYPE_CAMERA;
581 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
582 strcpy(vi->name, "Green Video Input");
584 strcpy(vi->name, "Composite Video Input");
586 vi->std = V4L2_STD_PAL;
589 vi->type = V4L2_INPUT_TYPE_CAMERA;
590 if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
591 strcpy(vi->name, "Yellow Video Input");
593 strcpy(vi->name, "S-Video Input");
595 vi->std = V4L2_STD_PAL;
598 vi->type = V4L2_INPUT_TYPE_CAMERA;
599 strcpy(vi->name, "Red Video Input");
600 vi->std = V4L2_STD_PAL;
606 static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
608 struct video_device *dev = video_devdata(file);
609 struct usb_usbvision *usbvision =
610 (struct usb_usbvision *) video_get_drvdata(dev);
612 *input = usbvision->ctl_input;
616 static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
618 struct video_device *dev = video_devdata(file);
619 struct usb_usbvision *usbvision =
620 (struct usb_usbvision *) video_get_drvdata(dev);
622 if ((input >= usbvision->video_inputs) || (input < 0) )
625 mutex_lock(&usbvision->lock);
626 usbvision_muxsel(usbvision, input);
627 usbvision_set_input(usbvision);
628 usbvision_set_output(usbvision,
630 usbvision->curheight);
631 mutex_unlock(&usbvision->lock);
635 static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
637 struct video_device *dev = video_devdata(file);
638 struct usb_usbvision *usbvision =
639 (struct usb_usbvision *) video_get_drvdata(dev);
640 usbvision->tvnormId=*id;
642 mutex_lock(&usbvision->lock);
643 call_i2c_clients(usbvision, VIDIOC_S_STD,
644 &usbvision->tvnormId);
645 mutex_unlock(&usbvision->lock);
646 /* propagate the change to the decoder */
647 usbvision_muxsel(usbvision, usbvision->ctl_input);
652 static int vidioc_g_tuner (struct file *file, void *priv,
653 struct v4l2_tuner *vt)
655 struct video_device *dev = video_devdata(file);
656 struct usb_usbvision *usbvision =
657 (struct usb_usbvision *) video_get_drvdata(dev);
659 if (!usbvision->have_tuner || vt->index) // Only tuner 0
661 if(usbvision->radio) {
662 strcpy(vt->name, "Radio");
663 vt->type = V4L2_TUNER_RADIO;
665 strcpy(vt->name, "Television");
667 /* Let clients fill in the remainder of this struct */
668 call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
673 static int vidioc_s_tuner (struct file *file, void *priv,
674 struct v4l2_tuner *vt)
676 struct video_device *dev = video_devdata(file);
677 struct usb_usbvision *usbvision =
678 (struct usb_usbvision *) video_get_drvdata(dev);
680 // Only no or one tuner for now
681 if (!usbvision->have_tuner || vt->index)
683 /* let clients handle this */
684 call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
689 static int vidioc_g_frequency (struct file *file, void *priv,
690 struct v4l2_frequency *freq)
692 struct video_device *dev = video_devdata(file);
693 struct usb_usbvision *usbvision =
694 (struct usb_usbvision *) video_get_drvdata(dev);
696 freq->tuner = 0; // Only one tuner
697 if(usbvision->radio) {
698 freq->type = V4L2_TUNER_RADIO;
700 freq->type = V4L2_TUNER_ANALOG_TV;
702 freq->frequency = usbvision->freq;
707 static int vidioc_s_frequency (struct file *file, void *priv,
708 struct v4l2_frequency *freq)
710 struct video_device *dev = video_devdata(file);
711 struct usb_usbvision *usbvision =
712 (struct usb_usbvision *) video_get_drvdata(dev);
714 // Only no or one tuner for now
715 if (!usbvision->have_tuner || freq->tuner)
718 usbvision->freq = freq->frequency;
719 call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
724 static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
726 struct video_device *dev = video_devdata(file);
727 struct usb_usbvision *usbvision =
728 (struct usb_usbvision *) video_get_drvdata(dev);
730 memset(a,0,sizeof(*a));
731 if(usbvision->radio) {
732 strcpy(a->name,"Radio");
734 strcpy(a->name, "TV");
740 static int vidioc_s_audio (struct file *file, void *fh,
741 struct v4l2_audio *a)
750 static int vidioc_queryctrl (struct file *file, void *priv,
751 struct v4l2_queryctrl *ctrl)
753 struct video_device *dev = video_devdata(file);
754 struct usb_usbvision *usbvision =
755 (struct usb_usbvision *) video_get_drvdata(dev);
758 memset(ctrl,0,sizeof(*ctrl));
761 call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
769 static int vidioc_g_ctrl (struct file *file, void *priv,
770 struct v4l2_control *ctrl)
772 struct video_device *dev = video_devdata(file);
773 struct usb_usbvision *usbvision =
774 (struct usb_usbvision *) video_get_drvdata(dev);
775 call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
780 static int vidioc_s_ctrl (struct file *file, void *priv,
781 struct v4l2_control *ctrl)
783 struct video_device *dev = video_devdata(file);
784 struct usb_usbvision *usbvision =
785 (struct usb_usbvision *) video_get_drvdata(dev);
786 call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);
791 static int vidioc_reqbufs (struct file *file,
792 void *priv, struct v4l2_requestbuffers *vr)
794 struct video_device *dev = video_devdata(file);
795 struct usb_usbvision *usbvision =
796 (struct usb_usbvision *) video_get_drvdata(dev);
799 RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);
801 /* Check input validity:
802 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_frames_free(usbvision);
813 usbvision_empty_framequeues(usbvision);
814 vr->count = usbvision_frames_alloc(usbvision,vr->count);
816 usbvision->curFrame = NULL;
821 static int vidioc_querybuf (struct file *file,
822 void *priv, struct v4l2_buffer *vb)
824 struct video_device *dev = video_devdata(file);
825 struct usb_usbvision *usbvision =
826 (struct usb_usbvision *) video_get_drvdata(dev);
827 struct usbvision_frame *frame;
829 /* FIXME : must control
830 that buffers are mapped (VIDIOC_REQBUFS has been called) */
831 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
834 if(vb->index>=usbvision->num_frames) {
837 /* Updating the corresponding frame state */
839 frame = &usbvision->frame[vb->index];
840 if(frame->grabstate >= FrameState_Ready)
841 vb->flags |= V4L2_BUF_FLAG_QUEUED;
842 if(frame->grabstate >= FrameState_Done)
843 vb->flags |= V4L2_BUF_FLAG_DONE;
844 if(frame->grabstate == FrameState_Unused)
845 vb->flags |= V4L2_BUF_FLAG_MAPPED;
846 vb->memory = V4L2_MEMORY_MMAP;
848 vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);
850 vb->memory = V4L2_MEMORY_MMAP;
851 vb->field = V4L2_FIELD_NONE;
852 vb->length = usbvision->curwidth*
853 usbvision->curheight*
854 usbvision->palette.bytes_per_pixel;
855 vb->timestamp = usbvision->frame[vb->index].timestamp;
856 vb->sequence = usbvision->frame[vb->index].sequence;
860 static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
862 struct video_device *dev = video_devdata(file);
863 struct usb_usbvision *usbvision =
864 (struct usb_usbvision *) video_get_drvdata(dev);
865 struct usbvision_frame *frame;
866 unsigned long lock_flags;
868 /* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
869 if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
872 if(vb->index>=usbvision->num_frames) {
876 frame = &usbvision->frame[vb->index];
878 if (frame->grabstate != FrameState_Unused) {
882 /* Mark it as ready and enqueue frame */
883 frame->grabstate = FrameState_Ready;
884 frame->scanstate = ScanState_Scanning;
885 frame->scanlength = 0; /* Accumulated in usbvision_parse_data() */
887 vb->flags &= ~V4L2_BUF_FLAG_DONE;
889 /* set v4l2_format index */
890 frame->v4l2_format = usbvision->palette;
892 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
893 list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
894 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
899 static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
901 struct video_device *dev = video_devdata(file);
902 struct usb_usbvision *usbvision =
903 (struct usb_usbvision *) video_get_drvdata(dev);
905 struct usbvision_frame *f;
906 unsigned long lock_flags;
908 if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
911 if (list_empty(&(usbvision->outqueue))) {
912 if (usbvision->streaming == Stream_Idle)
914 ret = wait_event_interruptible
915 (usbvision->wait_frame,
916 !list_empty(&(usbvision->outqueue)));
921 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
922 f = list_entry(usbvision->outqueue.next,
923 struct usbvision_frame, frame);
924 list_del(usbvision->outqueue.next);
925 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
927 f->grabstate = FrameState_Unused;
929 vb->memory = V4L2_MEMORY_MMAP;
930 vb->flags = V4L2_BUF_FLAG_MAPPED |
931 V4L2_BUF_FLAG_QUEUED |
933 vb->index = f->index;
934 vb->sequence = f->sequence;
935 vb->timestamp = f->timestamp;
936 vb->field = V4L2_FIELD_NONE;
937 vb->bytesused = f->scanlength;
942 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
944 struct video_device *dev = video_devdata(file);
945 struct usb_usbvision *usbvision =
946 (struct usb_usbvision *) video_get_drvdata(dev);
947 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
949 usbvision->streaming = Stream_On;
950 call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);
955 static int vidioc_streamoff(struct file *file,
956 void *priv, enum v4l2_buf_type type)
958 struct video_device *dev = video_devdata(file);
959 struct usb_usbvision *usbvision =
960 (struct usb_usbvision *) video_get_drvdata(dev);
961 int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;
963 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
966 if(usbvision->streaming == Stream_On) {
967 usbvision_stream_interrupt(usbvision);
968 /* Stop all video streamings */
969 call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
971 usbvision_empty_framequeues(usbvision);
976 static int vidioc_enum_fmt_vid_cap (struct file *file, void *priv,
977 struct v4l2_fmtdesc *vfd)
979 if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
983 vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
984 strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
985 vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
986 memset(vfd->reserved, 0, sizeof(vfd->reserved));
990 static int vidioc_g_fmt_vid_cap (struct file *file, void *priv,
991 struct v4l2_format *vf)
993 struct video_device *dev = video_devdata(file);
994 struct usb_usbvision *usbvision =
995 (struct usb_usbvision *) video_get_drvdata(dev);
996 vf->fmt.pix.width = usbvision->curwidth;
997 vf->fmt.pix.height = usbvision->curheight;
998 vf->fmt.pix.pixelformat = usbvision->palette.format;
999 vf->fmt.pix.bytesperline =
1000 usbvision->curwidth*usbvision->palette.bytes_per_pixel;
1001 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
1002 vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1003 vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */
1008 static int vidioc_try_fmt_vid_cap (struct file *file, void *priv,
1009 struct v4l2_format *vf)
1011 struct video_device *dev = video_devdata(file);
1012 struct usb_usbvision *usbvision =
1013 (struct usb_usbvision *) video_get_drvdata(dev);
1016 /* Find requested format in available ones */
1017 for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
1018 if(vf->fmt.pix.pixelformat ==
1019 usbvision_v4l2_format[formatIdx].format) {
1020 usbvision->palette = usbvision_v4l2_format[formatIdx];
1025 if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
1028 RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
1029 RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);
1031 vf->fmt.pix.bytesperline = vf->fmt.pix.width*
1032 usbvision->palette.bytes_per_pixel;
1033 vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;
1038 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1039 struct v4l2_format *vf)
1041 struct video_device *dev = video_devdata(file);
1042 struct usb_usbvision *usbvision =
1043 (struct usb_usbvision *) video_get_drvdata(dev);
1046 if( 0 != (ret=vidioc_try_fmt_vid_cap (file, priv, vf)) ) {
1050 /* stop io in case it is already in progress */
1051 if(usbvision->streaming == Stream_On) {
1052 if ((ret = usbvision_stream_interrupt(usbvision)))
1055 usbvision_frames_free(usbvision);
1056 usbvision_empty_framequeues(usbvision);
1058 usbvision->curFrame = NULL;
1060 /* by now we are committed to the new data... */
1061 mutex_lock(&usbvision->lock);
1062 usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1063 mutex_unlock(&usbvision->lock);
1068 static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1069 size_t count, loff_t *ppos)
1071 struct video_device *dev = video_devdata(file);
1072 struct usb_usbvision *usbvision =
1073 (struct usb_usbvision *) video_get_drvdata(dev);
1074 int noblock = file->f_flags & O_NONBLOCK;
1075 unsigned long lock_flags;
1078 struct usbvision_frame *frame;
1080 PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __func__,
1081 (unsigned long)count, noblock);
1083 if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
1086 /* This entry point is compatible with the mmap routines
1087 so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
1088 to get frames or call read on the device. */
1089 if(!usbvision->num_frames) {
1090 /* First, allocate some frames to work with
1091 if this has not been done with VIDIOC_REQBUF */
1092 usbvision_frames_free(usbvision);
1093 usbvision_empty_framequeues(usbvision);
1094 usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
1097 if(usbvision->streaming != Stream_On) {
1098 /* no stream is running, make it running ! */
1099 usbvision->streaming = Stream_On;
1100 call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
1103 /* Then, enqueue as many frames as possible
1104 (like a user of VIDIOC_QBUF would do) */
1105 for(i=0;i<usbvision->num_frames;i++) {
1106 frame = &usbvision->frame[i];
1107 if(frame->grabstate == FrameState_Unused) {
1108 /* Mark it as ready and enqueue frame */
1109 frame->grabstate = FrameState_Ready;
1110 frame->scanstate = ScanState_Scanning;
1111 /* Accumulated in usbvision_parse_data() */
1112 frame->scanlength = 0;
1114 /* set v4l2_format index */
1115 frame->v4l2_format = usbvision->palette;
1117 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1118 list_add_tail(&frame->frame, &usbvision->inqueue);
1119 spin_unlock_irqrestore(&usbvision->queue_lock,
1124 /* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
1125 if (list_empty(&(usbvision->outqueue))) {
1129 ret = wait_event_interruptible
1130 (usbvision->wait_frame,
1131 !list_empty(&(usbvision->outqueue)));
1136 spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
1137 frame = list_entry(usbvision->outqueue.next,
1138 struct usbvision_frame, frame);
1139 list_del(usbvision->outqueue.next);
1140 spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);
1142 /* An error returns an empty frame */
1143 if (frame->grabstate == FrameState_Error) {
1144 frame->bytes_read = 0;
1148 PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
1150 frame->index, frame->bytes_read, frame->scanlength);
1152 /* copy bytes to user space; we allow for partials reads */
1153 if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
1154 count = frame->scanlength - frame->bytes_read;
1156 if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
1160 frame->bytes_read += count;
1161 PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
1163 (unsigned long)count, frame->bytes_read);
1165 /* For now, forget the frame if it has not been read in one shot. */
1166 /* if (frame->bytes_read >= frame->scanlength) {// All data has been read */
1167 frame->bytes_read = 0;
1169 /* Mark it as available to be used again. */
1170 frame->grabstate = FrameState_Unused;
1176 static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
1178 unsigned long size = vma->vm_end - vma->vm_start,
1179 start = vma->vm_start;
1183 struct video_device *dev = video_devdata(file);
1184 struct usb_usbvision *usbvision =
1185 (struct usb_usbvision *) video_get_drvdata(dev);
1187 PDEBUG(DBG_MMAP, "mmap");
1189 mutex_lock(&usbvision->lock);
1191 if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1192 mutex_unlock(&usbvision->lock);
1196 if (!(vma->vm_flags & VM_WRITE) ||
1197 size != PAGE_ALIGN(usbvision->max_frame_size)) {
1198 mutex_unlock(&usbvision->lock);
1202 for (i = 0; i < usbvision->num_frames; i++) {
1203 if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
1207 if (i == usbvision->num_frames) {
1209 "mmap: user supplied mapping address is out of range");
1210 mutex_unlock(&usbvision->lock);
1214 /* VM_IO is eventually going to replace PageReserved altogether */
1215 vma->vm_flags |= VM_IO;
1216 vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
1218 pos = usbvision->frame[i].data;
1221 if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1222 PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1223 mutex_unlock(&usbvision->lock);
1231 mutex_unlock(&usbvision->lock);
1237 * Here comes the stuff for radio on usbvision based devices
1240 static int usbvision_radio_open(struct inode *inode, struct file *file)
1242 struct video_device *dev = video_devdata(file);
1243 struct usb_usbvision *usbvision =
1244 (struct usb_usbvision *) video_get_drvdata(dev);
1247 PDEBUG(DBG_IO, "%s:", __func__);
1249 mutex_lock(&usbvision->lock);
1251 if (usbvision->user) {
1252 err("%s: Someone tried to open an already opened USBVision Radio!", __func__);
1257 usbvision_reset_powerOffTimer(usbvision);
1258 if (usbvision->power == 0) {
1259 usbvision_power_on(usbvision);
1260 usbvision_i2c_register(usbvision);
1264 /* Alternate interface 1 is is the biggest frame size */
1265 errCode = usbvision_set_alternate(usbvision);
1267 usbvision->last_error = errCode;
1272 // If so far no errors then we shall start the radio
1273 usbvision->radio = 1;
1274 call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
1275 usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
1280 if (PowerOnAtOpen) {
1281 usbvision_i2c_unregister(usbvision);
1282 usbvision_power_off(usbvision);
1283 usbvision->initialized = 0;
1287 mutex_unlock(&usbvision->lock);
1292 static int usbvision_radio_close(struct inode *inode, struct file *file)
1294 struct video_device *dev = video_devdata(file);
1295 struct usb_usbvision *usbvision =
1296 (struct usb_usbvision *) video_get_drvdata(dev);
1301 mutex_lock(&usbvision->lock);
1303 /* Set packet size to 0 */
1304 usbvision->ifaceAlt=0;
1305 errCode = usb_set_interface(usbvision->dev, usbvision->iface,
1306 usbvision->ifaceAlt);
1308 usbvision_audio_off(usbvision);
1312 if (PowerOnAtOpen) {
1313 usbvision_set_powerOffTimer(usbvision);
1314 usbvision->initialized = 0;
1317 mutex_unlock(&usbvision->lock);
1319 if (usbvision->remove_pending) {
1320 printk(KERN_INFO "%s: Final disconnect\n", __func__);
1321 usbvision_release(usbvision);
1324 PDEBUG(DBG_IO, "success");
1329 * Here comes the stuff for vbi on usbvision based devices
1332 static int usbvision_vbi_open(struct inode *inode, struct file *file)
1338 static int usbvision_vbi_close(struct inode *inode, struct file *file)
1344 static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
1345 unsigned int cmd, void *arg)
1348 return -ENOIOCTLCMD;
1351 static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
1352 unsigned int cmd, unsigned long arg)
1354 return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
1359 // Video registration stuff
1363 static const struct file_operations usbvision_fops = {
1364 .owner = THIS_MODULE,
1365 .open = usbvision_v4l2_open,
1366 .release = usbvision_v4l2_close,
1367 .read = usbvision_v4l2_read,
1368 .mmap = usbvision_v4l2_mmap,
1369 .ioctl = video_ioctl2,
1370 .llseek = no_llseek,
1371 /* .poll = video_poll, */
1372 .compat_ioctl = v4l_compat_ioctl32,
1375 static const struct v4l2_ioctl_ops usbvision_ioctl_ops = {
1376 .vidioc_querycap = vidioc_querycap,
1377 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1378 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1379 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1380 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1381 .vidioc_reqbufs = vidioc_reqbufs,
1382 .vidioc_querybuf = vidioc_querybuf,
1383 .vidioc_qbuf = vidioc_qbuf,
1384 .vidioc_dqbuf = vidioc_dqbuf,
1385 .vidioc_s_std = vidioc_s_std,
1386 .vidioc_enum_input = vidioc_enum_input,
1387 .vidioc_g_input = vidioc_g_input,
1388 .vidioc_s_input = vidioc_s_input,
1389 .vidioc_queryctrl = vidioc_queryctrl,
1390 .vidioc_g_audio = vidioc_g_audio,
1391 .vidioc_s_audio = vidioc_s_audio,
1392 .vidioc_g_ctrl = vidioc_g_ctrl,
1393 .vidioc_s_ctrl = vidioc_s_ctrl,
1394 .vidioc_streamon = vidioc_streamon,
1395 .vidioc_streamoff = vidioc_streamoff,
1396 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1397 /* .vidiocgmbuf = vidiocgmbuf, */
1399 .vidioc_g_tuner = vidioc_g_tuner,
1400 .vidioc_s_tuner = vidioc_s_tuner,
1401 .vidioc_g_frequency = vidioc_g_frequency,
1402 .vidioc_s_frequency = vidioc_s_frequency,
1403 #ifdef CONFIG_VIDEO_ADV_DEBUG
1404 .vidioc_g_register = vidioc_g_register,
1405 .vidioc_s_register = vidioc_s_register,
1409 static struct video_device usbvision_video_template = {
1410 .fops = &usbvision_fops,
1411 .ioctl_ops = &usbvision_ioctl_ops,
1412 .name = "usbvision-video",
1413 .release = video_device_release,
1415 .tvnorms = USBVISION_NORMS,
1416 .current_norm = V4L2_STD_PAL
1421 static const struct file_operations usbvision_radio_fops = {
1422 .owner = THIS_MODULE,
1423 .open = usbvision_radio_open,
1424 .release = usbvision_radio_close,
1425 .ioctl = video_ioctl2,
1426 .llseek = no_llseek,
1427 .compat_ioctl = v4l_compat_ioctl32,
1430 static const struct v4l2_ioctl_ops usbvision_radio_ioctl_ops = {
1431 .vidioc_querycap = vidioc_querycap,
1432 .vidioc_enum_input = vidioc_enum_input,
1433 .vidioc_g_input = vidioc_g_input,
1434 .vidioc_s_input = vidioc_s_input,
1435 .vidioc_queryctrl = vidioc_queryctrl,
1436 .vidioc_g_audio = vidioc_g_audio,
1437 .vidioc_s_audio = vidioc_s_audio,
1438 .vidioc_g_ctrl = vidioc_g_ctrl,
1439 .vidioc_s_ctrl = vidioc_s_ctrl,
1440 .vidioc_g_tuner = vidioc_g_tuner,
1441 .vidioc_s_tuner = vidioc_s_tuner,
1442 .vidioc_g_frequency = vidioc_g_frequency,
1443 .vidioc_s_frequency = vidioc_s_frequency,
1446 static struct video_device usbvision_radio_template = {
1447 .fops = &usbvision_radio_fops,
1448 .name = "usbvision-radio",
1449 .release = video_device_release,
1451 .ioctl_ops = &usbvision_radio_ioctl_ops,
1453 .tvnorms = USBVISION_NORMS,
1454 .current_norm = V4L2_STD_PAL
1458 static const struct file_operations usbvision_vbi_fops = {
1459 .owner = THIS_MODULE,
1460 .open = usbvision_vbi_open,
1461 .release = usbvision_vbi_close,
1462 .ioctl = usbvision_vbi_ioctl,
1463 .llseek = no_llseek,
1464 .compat_ioctl = v4l_compat_ioctl32,
1467 static struct video_device usbvision_vbi_template=
1469 .fops = &usbvision_vbi_fops,
1470 .release = video_device_release,
1471 .name = "usbvision-vbi",
1476 static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
1477 struct video_device *vdev_template,
1480 struct usb_device *usb_dev = usbvision->dev;
1481 struct video_device *vdev;
1483 if (usb_dev == NULL) {
1484 err("%s: usbvision->dev is not set", __func__);
1488 vdev = video_device_alloc();
1492 *vdev = *vdev_template;
1493 // vdev->minor = -1;
1494 vdev->parent = &usb_dev->dev;
1495 snprintf(vdev->name, sizeof(vdev->name), "%s", name);
1496 video_set_drvdata(vdev, usbvision);
1500 // unregister video4linux devices
1501 static void usbvision_unregister_video(struct usb_usbvision *usbvision)
1504 if (usbvision->vbi) {
1505 PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
1506 usbvision->vbi->minor & 0x1f);
1507 if (usbvision->vbi->minor != -1) {
1508 video_unregister_device(usbvision->vbi);
1510 video_device_release(usbvision->vbi);
1512 usbvision->vbi = NULL;
1516 if (usbvision->rdev) {
1517 PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
1518 usbvision->rdev->minor & 0x1f);
1519 if (usbvision->rdev->minor != -1) {
1520 video_unregister_device(usbvision->rdev);
1522 video_device_release(usbvision->rdev);
1524 usbvision->rdev = NULL;
1528 if (usbvision->vdev) {
1529 PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
1530 usbvision->vdev->minor & 0x1f);
1531 if (usbvision->vdev->minor != -1) {
1532 video_unregister_device(usbvision->vdev);
1534 video_device_release(usbvision->vdev);
1536 usbvision->vdev = NULL;
1540 // register video4linux devices
1541 static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
1544 usbvision->vdev = usbvision_vdev_init(usbvision,
1545 &usbvision_video_template,
1547 if (usbvision->vdev == NULL) {
1550 if (video_register_device(usbvision->vdev,
1555 printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
1556 usbvision->nr,usbvision->vdev->minor & 0x1f);
1559 if (usbvision_device_data[usbvision->DevModel].Radio) {
1560 // usbvision has radio
1561 usbvision->rdev = usbvision_vdev_init(usbvision,
1562 &usbvision_radio_template,
1564 if (usbvision->rdev == NULL) {
1567 if (video_register_device(usbvision->rdev,
1572 printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
1573 usbvision->nr, usbvision->rdev->minor & 0x1f);
1576 if (usbvision_device_data[usbvision->DevModel].vbi) {
1577 usbvision->vbi = usbvision_vdev_init(usbvision,
1578 &usbvision_vbi_template,
1580 if (usbvision->vdev == NULL) {
1583 if (video_register_device(usbvision->vbi,
1588 printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
1589 usbvision->nr,usbvision->vbi->minor & 0x1f);
1595 err("USBVision[%d]: video_register_device() failed", usbvision->nr);
1596 usbvision_unregister_video(usbvision);
1603 * This code allocates the struct usb_usbvision.
1604 * It is filled with default values.
1606 * Returns NULL on error, a pointer to usb_usbvision else.
1609 static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
1611 struct usb_usbvision *usbvision;
1613 if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
1618 usbvision->dev = dev;
1620 mutex_init(&usbvision->lock); /* available */
1622 // prepare control urb for control messages during interrupts
1623 usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
1624 if (usbvision->ctrlUrb == NULL) {
1627 init_waitqueue_head(&usbvision->ctrlUrb_wq);
1629 usbvision_init_powerOffTimer(usbvision);
1634 if (usbvision && usbvision->ctrlUrb) {
1635 usb_free_urb(usbvision->ctrlUrb);
1644 * usbvision_release()
1646 * This code does final release of struct usb_usbvision. This happens
1647 * after the device is disconnected -and- all clients closed their files.
1650 static void usbvision_release(struct usb_usbvision *usbvision)
1652 PDEBUG(DBG_PROBE, "");
1654 mutex_lock(&usbvision->lock);
1656 usbvision_reset_powerOffTimer(usbvision);
1658 usbvision->initialized = 0;
1660 mutex_unlock(&usbvision->lock);
1662 usbvision_remove_sysfs(usbvision->vdev);
1663 usbvision_unregister_video(usbvision);
1665 if (usbvision->ctrlUrb) {
1666 usb_free_urb(usbvision->ctrlUrb);
1671 PDEBUG(DBG_PROBE, "success");
1675 /*********************** usb interface **********************************/
1677 static void usbvision_configure_video(struct usb_usbvision *usbvision)
1681 if (usbvision == NULL)
1684 model = usbvision->DevModel;
1685 usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;
1687 if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1688 usbvision->Vin_Reg2_Preset =
1689 usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1691 usbvision->Vin_Reg2_Preset = 0;
1694 usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1696 usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
1697 usbvision->ctl_input = 0;
1699 /* This should be here to make i2c clients to be able to register */
1700 /* first switch off audio */
1701 usbvision_audio_off(usbvision);
1702 if (!PowerOnAtOpen) {
1703 /* and then power up the noisy tuner */
1704 usbvision_power_on(usbvision);
1705 usbvision_i2c_register(usbvision);
1712 * This procedure queries device descriptor and accepts the interface
1713 * if it looks like USBVISION video device
1716 static int __devinit usbvision_probe(struct usb_interface *intf,
1717 const struct usb_device_id *devid)
1719 struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
1720 struct usb_interface *uif;
1721 __u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
1722 const struct usb_host_interface *interface;
1723 struct usb_usbvision *usbvision = NULL;
1724 const struct usb_endpoint_descriptor *endpoint;
1727 PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1728 dev->descriptor.idVendor,
1729 dev->descriptor.idProduct, ifnum);
1731 model = devid->driver_info;
1732 if ( (model<0) || (model>=usbvision_device_data_size) ) {
1733 PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1736 printk(KERN_INFO "%s: %s found\n", __func__,
1737 usbvision_device_data[model].ModelString);
1739 if (usbvision_device_data[model].Interface >= 0) {
1740 interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1742 interface = &dev->actconfig->interface[ifnum]->altsetting[0];
1744 endpoint = &interface->endpoint[1].desc;
1745 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1746 USB_ENDPOINT_XFER_ISOC) {
1747 err("%s: interface %d. has non-ISO endpoint!",
1749 err("%s: Endpoint attributes %d",
1750 __func__, endpoint->bmAttributes);
1753 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
1755 err("%s: interface %d. has ISO OUT endpoint!",
1760 if ((usbvision = usbvision_alloc(dev)) == NULL) {
1761 err("%s: couldn't allocate USBVision struct", __func__);
1765 if (dev->descriptor.bNumConfigurations > 1) {
1766 usbvision->bridgeType = BRIDGE_NT1004;
1767 } else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1768 usbvision->bridgeType = BRIDGE_NT1005;
1770 usbvision->bridgeType = BRIDGE_NT1003;
1772 PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);
1774 mutex_lock(&usbvision->lock);
1776 /* compute alternate max packet sizes */
1777 uif = dev->actconfig->interface[0];
1779 usbvision->num_alt=uif->num_altsetting;
1780 PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
1781 usbvision->alt_max_pkt_size = kmalloc(32*
1782 usbvision->num_alt,GFP_KERNEL);
1783 if (usbvision->alt_max_pkt_size == NULL) {
1784 err("usbvision: out of memory!\n");
1785 mutex_unlock(&usbvision->lock);
1789 for (i = 0; i < usbvision->num_alt ; i++) {
1790 u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
1792 usbvision->alt_max_pkt_size[i] =
1793 (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
1794 PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
1795 usbvision->alt_max_pkt_size[i]);
1799 usbvision->nr = usbvision_nr++;
1801 usbvision->have_tuner = usbvision_device_data[model].Tuner;
1802 if (usbvision->have_tuner) {
1803 usbvision->tuner_type = usbvision_device_data[model].TunerType;
1806 usbvision->tuner_addr = ADDR_UNSET;
1808 usbvision->DevModel = model;
1809 usbvision->remove_pending = 0;
1810 usbvision->iface = ifnum;
1811 usbvision->ifaceAlt = 0;
1812 usbvision->video_endp = endpoint->bEndpointAddress;
1813 usbvision->isocPacketSize = 0;
1814 usbvision->usb_bandwidth = 0;
1815 usbvision->user = 0;
1816 usbvision->streaming = Stream_Off;
1817 usbvision_register_video(usbvision);
1818 usbvision_configure_video(usbvision);
1819 mutex_unlock(&usbvision->lock);
1822 usb_set_intfdata (intf, usbvision);
1823 usbvision_create_sysfs(usbvision->vdev);
1825 PDEBUG(DBG_PROBE, "success");
1831 * usbvision_disconnect()
1833 * This procedure stops all driver activity, deallocates interface-private
1834 * structure (pointed by 'ptr') and after that driver should be removable
1835 * with no ill consequences.
1838 static void __devexit usbvision_disconnect(struct usb_interface *intf)
1840 struct usb_usbvision *usbvision = usb_get_intfdata(intf);
1842 PDEBUG(DBG_PROBE, "");
1844 if (usbvision == NULL) {
1845 err("%s: usb_get_intfdata() failed", __func__);
1848 usb_set_intfdata (intf, NULL);
1850 mutex_lock(&usbvision->lock);
1852 // At this time we ask to cancel outstanding URBs
1853 usbvision_stop_isoc(usbvision);
1855 if (usbvision->power) {
1856 usbvision_i2c_unregister(usbvision);
1857 usbvision_power_off(usbvision);
1859 usbvision->remove_pending = 1; // Now all ISO data will be ignored
1861 usb_put_dev(usbvision->dev);
1862 usbvision->dev = NULL; // USB device is no more
1864 mutex_unlock(&usbvision->lock);
1866 if (usbvision->user) {
1867 printk(KERN_INFO "%s: In use, disconnect pending\n",
1869 wake_up_interruptible(&usbvision->wait_frame);
1870 wake_up_interruptible(&usbvision->wait_stream);
1872 usbvision_release(usbvision);
1875 PDEBUG(DBG_PROBE, "success");
1878 static struct usb_driver usbvision_driver = {
1879 .name = "usbvision",
1880 .id_table = usbvision_table,
1881 .probe = usbvision_probe,
1882 .disconnect = usbvision_disconnect
1888 * This code is run to initialize the driver.
1891 static int __init usbvision_init(void)
1895 PDEBUG(DBG_PROBE, "");
1897 PDEBUG(DBG_IO, "IO debugging is enabled [video]");
1898 PDEBUG(DBG_PROBE, "PROBE debugging is enabled [video]");
1899 PDEBUG(DBG_MMAP, "MMAP debugging is enabled [video]");
1901 /* disable planar mode support unless compression enabled */
1902 if (isocMode != ISOC_MODE_COMPRESS ) {
1903 // FIXME : not the right way to set supported flag
1904 usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
1905 usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
1908 errCode = usb_register(&usbvision_driver);
1911 printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1912 PDEBUG(DBG_PROBE, "success");
1917 static void __exit usbvision_exit(void)
1919 PDEBUG(DBG_PROBE, "");
1921 usb_deregister(&usbvision_driver);
1922 PDEBUG(DBG_PROBE, "success");
1925 module_init(usbvision_init);
1926 module_exit(usbvision_exit);
1929 * Overrides for Emacs so that we follow Linus's tabbing style.
1930 * ---------------------------------------------------------------------------