usbvision-video.c 53.0 KB
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/*
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 * USB USBVISION Video device driver 0.9.9
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 *
 *
 *
 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
 *
 * This module is part of usbvision driver project.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Let's call the version 0.... until compression decoding is completely
 * implemented.
 *
 * This driver is written by Jose Ignacio Gijon and Joerg Heckenbach.
 * It was based on USB CPiA driver written by Peter Pregler,
 * Scott J. Bertin and Johannes Erdfelt
 * Ideas are taken from bttv driver by Ralph Metzler, Marcus Metzler &
 * Gerd Knorr and zoran 36120/36125 driver by Pauline Middelink
 * Updates to driver completed by Dwaine P. Garden
 *
 *
 * TODO:
 *     - use submit_urb for all setup packets
 *     - Fix memory settings for nt1004. It is 4 times as big as the
 *       nt1003 memory.
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 *     - Add audio on endpoint 3 for nt1004 chip.
 *         Seems impossible, needs a codec interface.  Which one?
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 *     - Clean up the driver.
 *     - optimization for performance.
 *     - Add Videotext capability (VBI).  Working on it.....
 *     - Check audio for other devices
 *
 */

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#include <linux/version.h>
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#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/utsname.h>
#include <linux/highmem.h>
#include <linux/videodev.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <asm/io.h>
#include <linux/videodev2.h>
#include <linux/video_decoder.h>
#include <linux/i2c.h>

#include <media/saa7115.h>
#include <media/v4l2-common.h>
#include <media/tuner.h>
#include <media/audiochip.h>

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#include <linux/workqueue.h>
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#ifdef CONFIG_KMOD
#include <linux/kmod.h>
#endif

#include "usbvision.h"
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#include "usbvision-cards.h"
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#define DRIVER_AUTHOR "Joerg Heckenbach <joerg@heckenbach-aw.de>,\
 Dwaine Garden <DwaineGarden@rogers.com>"
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#define DRIVER_NAME "usbvision"
#define DRIVER_ALIAS "USBVision"
#define DRIVER_DESC "USBVision USB Video Device Driver for Linux"
#define DRIVER_LICENSE "GPL"
#define USBVISION_DRIVER_VERSION_MAJOR 0
#define USBVISION_DRIVER_VERSION_MINOR 9
#define USBVISION_DRIVER_VERSION_PATCHLEVEL 9
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#define USBVISION_DRIVER_VERSION KERNEL_VERSION(USBVISION_DRIVER_VERSION_MAJOR,\
USBVISION_DRIVER_VERSION_MINOR,\
USBVISION_DRIVER_VERSION_PATCHLEVEL)
#define USBVISION_VERSION_STRING __stringify(USBVISION_DRIVER_VERSION_MAJOR)\
 "." __stringify(USBVISION_DRIVER_VERSION_MINOR)\
 "." __stringify(USBVISION_DRIVER_VERSION_PATCHLEVEL)
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#define	ENABLE_HEXDUMP	0	/* Enable if you need it */


#ifdef USBVISION_DEBUG
	#define PDEBUG(level, fmt, args...) \
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		if (video_debug & (level)) \
			info("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__ ,\
				## args)
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#else
	#define PDEBUG(level, fmt, args...) do {} while(0)
#endif

#define DBG_IO		1<<1
#define DBG_PROBE	1<<2
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#define DBG_MMAP	1<<3
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//String operations
#define rmspace(str)	while(*str==' ') str++;
#define goto2next(str)	while(*str!=' ') str++; while(*str==' ') str++;


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/* sequential number of usbvision device */
static int usbvision_nr = 0;
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static struct usbvision_v4l2_format_st usbvision_v4l2_format[] = {
	{ 1, 1,  8, V4L2_PIX_FMT_GREY    , "GREY" },
	{ 1, 2, 16, V4L2_PIX_FMT_RGB565  , "RGB565" },
	{ 1, 3, 24, V4L2_PIX_FMT_RGB24   , "RGB24" },
	{ 1, 4, 32, V4L2_PIX_FMT_RGB32   , "RGB32" },
	{ 1, 2, 16, V4L2_PIX_FMT_RGB555  , "RGB555" },
	{ 1, 2, 16, V4L2_PIX_FMT_YUYV    , "YUV422" },
	{ 1, 2, 12, V4L2_PIX_FMT_YVU420  , "YUV420P" }, // 1.5 !
	{ 1, 2, 16, V4L2_PIX_FMT_YUV422P , "YUV422P" }
};

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/* Function prototypes */
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static void usbvision_release(struct usb_usbvision *usbvision);

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/* Default initalization of device driver parameters */
/* Set the default format for ISOC endpoint */
static int isocMode = ISOC_MODE_COMPRESS;
/* Set the default Debug Mode of the device driver */
static int video_debug = 0;
/* Set the default device to power on at startup */
static int PowerOnAtOpen = 1;
/* Sequential Number of Video Device */
static int video_nr = -1;
/* Sequential Number of Radio Device */
static int radio_nr = -1;
/* Sequential Number of VBI Device */
static int vbi_nr = -1;

/* Grab parameters for the device driver */

/* Showing parameters under SYSFS */
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module_param(isocMode, int, 0444);
module_param(video_debug, int, 0444);
module_param(PowerOnAtOpen, int, 0444);
module_param(video_nr, int, 0444);
module_param(radio_nr, int, 0444);
module_param(vbi_nr, int, 0444);

MODULE_PARM_DESC(isocMode, " Set the default format for ISOC endpoint.  Default: 0x60 (Compression On)");
MODULE_PARM_DESC(video_debug, " Set the default Debug Mode of the device driver.  Default: 0 (Off)");
MODULE_PARM_DESC(PowerOnAtOpen, " Set the default device to power on when device is opened.  Default: 1 (On)");
MODULE_PARM_DESC(video_nr, "Set video device number (/dev/videoX).  Default: -1 (autodetect)");
MODULE_PARM_DESC(radio_nr, "Set radio device number (/dev/radioX).  Default: -1 (autodetect)");
MODULE_PARM_DESC(vbi_nr, "Set vbi device number (/dev/vbiX).  Default: -1 (autodetect)");


// Misc stuff
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE(DRIVER_LICENSE);
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MODULE_VERSION(USBVISION_VERSION_STRING);
MODULE_ALIAS(DRIVER_ALIAS);
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/*****************************************************************************/
/* SYSFS Code - Copied from the stv680.c usb module.			     */
/* Device information is located at /sys/class/video4linux/video0            */
/* Device parameters information is located at /sys/module/usbvision         */
/* Device USB Information is located at                                      */
/*   /sys/bus/usb/drivers/USBVision Video Grabber                            */
/*****************************************************************************/
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#define YES_NO(x) ((x) ? "Yes" : "No")

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static inline struct usb_usbvision *cd_to_usbvision(struct device *cd)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	return video_get_drvdata(vdev);
}

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static ssize_t show_version(struct device *cd,
			    struct device_attribute *attr, char *buf)
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{
	return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
}
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static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
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static ssize_t show_model(struct device *cd,
			  struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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	return sprintf(buf, "%s\n",
		       usbvision_device_data[usbvision->DevModel].ModelString);
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}
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static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
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static ssize_t show_hue(struct device *cd,
			struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
	struct v4l2_control ctrl;
	ctrl.id = V4L2_CID_HUE;
	ctrl.value = 0;
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	if(usbvision->user)
		call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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	return sprintf(buf, "%d\n", ctrl.value);
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}
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static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
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static ssize_t show_contrast(struct device *cd,
			     struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
	struct v4l2_control ctrl;
	ctrl.id = V4L2_CID_CONTRAST;
	ctrl.value = 0;
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	if(usbvision->user)
		call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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	return sprintf(buf, "%d\n", ctrl.value);
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}
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static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
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static ssize_t show_brightness(struct device *cd,
			       struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
	struct v4l2_control ctrl;
	ctrl.id = V4L2_CID_BRIGHTNESS;
	ctrl.value = 0;
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	if(usbvision->user)
		call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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	return sprintf(buf, "%d\n", ctrl.value);
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}
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static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
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static ssize_t show_saturation(struct device *cd,
			       struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
	struct v4l2_control ctrl;
	ctrl.id = V4L2_CID_SATURATION;
	ctrl.value = 0;
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	if(usbvision->user)
		call_i2c_clients(usbvision, VIDIOC_G_CTRL, &ctrl);
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	return sprintf(buf, "%d\n", ctrl.value);
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}
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static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
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static ssize_t show_streaming(struct device *cd,
			      struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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	return sprintf(buf, "%s\n",
		       YES_NO(usbvision->streaming==Stream_On?1:0));
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}
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static DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);
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static ssize_t show_compression(struct device *cd,
				struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
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	return sprintf(buf, "%s\n",
		       YES_NO(usbvision->isocMode==ISOC_MODE_COMPRESS));
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}
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static DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);
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static ssize_t show_device_bridge(struct device *cd,
				  struct device_attribute *attr, char *buf)
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{
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	struct video_device *vdev =
		container_of(cd, struct video_device, class_dev);
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	struct usb_usbvision *usbvision = video_get_drvdata(vdev);
	return sprintf(buf, "%d\n", usbvision->bridgeType);
}
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static DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);
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static void usbvision_create_sysfs(struct video_device *vdev)
{
	int res;
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	if (!vdev)
		return;
	do {
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_version);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_model);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_hue);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_contrast);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_brightness);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_saturation);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_streaming);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_compression);
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		if (res<0)
			break;
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		res = device_create_file(&vdev->class_dev,
					 &dev_attr_bridge);
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		if (res>=0)
			return;
	} while (0);

	err("%s error: %d\n", __FUNCTION__, res);
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}

static void usbvision_remove_sysfs(struct video_device *vdev)
{
	if (vdev) {
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		device_remove_file(&vdev->class_dev,
					 &dev_attr_version);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_model);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_hue);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_contrast);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_brightness);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_saturation);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_streaming);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_compression);
		device_remove_file(&vdev->class_dev,
					 &dev_attr_bridge);
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	}
}


/*
 * usbvision_open()
 *
 * This is part of Video 4 Linux API. The driver can be opened by one
 * client only (checks internal counter 'usbvision->user'). The procedure
 * then allocates buffers needed for video processing.
 *
 */
static int usbvision_v4l2_open(struct inode *inode, struct file *file)
{
	struct video_device *dev = video_devdata(file);
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	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
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	int errCode = 0;

	PDEBUG(DBG_IO, "open");


	usbvision_reset_powerOffTimer(usbvision);

	if (usbvision->user)
		errCode = -EBUSY;
	else {
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		/* Allocate memory for the scratch ring buffer */
		errCode = usbvision_scratch_alloc(usbvision);
		if (isocMode==ISOC_MODE_COMPRESS) {
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			/* Allocate intermediate decompression buffers
			   only if needed */
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			errCode = usbvision_decompress_alloc(usbvision);
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		}
		if (errCode) {
			/* Deallocate all buffers if trouble */
			usbvision_scratch_free(usbvision);
			usbvision_decompress_free(usbvision);
		}
	}

	/* If so far no errors then we shall start the camera */
	if (!errCode) {
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		mutex_lock(&usbvision->lock);
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		if (usbvision->power == 0) {
			usbvision_power_on(usbvision);
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			usbvision_i2c_register(usbvision);
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		}

		/* Send init sequence only once, it's large! */
		if (!usbvision->initialized) {
			int setup_ok = 0;
			setup_ok = usbvision_setup(usbvision,isocMode);
			if (setup_ok)
				usbvision->initialized = 1;
			else
				errCode = -EBUSY;
		}

		if (!errCode) {
			usbvision_begin_streaming(usbvision);
			errCode = usbvision_init_isoc(usbvision);
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			/* device must be initialized before isoc transfer */
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			usbvision_muxsel(usbvision,0);
			usbvision->user++;
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		} else {
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			if (PowerOnAtOpen) {
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				usbvision_i2c_unregister(usbvision);
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				usbvision_power_off(usbvision);
				usbvision->initialized = 0;
			}
		}
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		mutex_unlock(&usbvision->lock);
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	}

	if (errCode) {
	}

	/* prepare queues */
	usbvision_empty_framequeues(usbvision);

	PDEBUG(DBG_IO, "success");
	return errCode;
}

/*
 * usbvision_v4l2_close()
 *
 * This is part of Video 4 Linux API. The procedure
 * stops streaming and deallocates all buffers that were earlier
 * allocated in usbvision_v4l2_open().
 *
 */
static int usbvision_v4l2_close(struct inode *inode, struct file *file)
{
	struct video_device *dev = video_devdata(file);
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	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
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	PDEBUG(DBG_IO, "close");
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	mutex_lock(&usbvision->lock);
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	usbvision_audio_off(usbvision);
	usbvision_restart_isoc(usbvision);
	usbvision_stop_isoc(usbvision);

	usbvision_decompress_free(usbvision);
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	usbvision_frames_free(usbvision);
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	usbvision_empty_framequeues(usbvision);
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	usbvision_scratch_free(usbvision);

	usbvision->user--;

	if (PowerOnAtOpen) {
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		/* power off in a little while
		   to avoid off/on every close/open short sequences */
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		usbvision_set_powerOffTimer(usbvision);
		usbvision->initialized = 0;
	}

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	mutex_unlock(&usbvision->lock);
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	if (usbvision->remove_pending) {
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		printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
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		usbvision_release(usbvision);
	}

	PDEBUG(DBG_IO, "success");


	return 0;
}


/*
 * usbvision_ioctl()
 *
 * This is part of Video 4 Linux API. The procedure handles ioctl() calls.
 *
 */
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#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vidioc_g_register (struct file *file, void *priv,
				struct v4l2_register *reg)
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{
	struct video_device *dev = video_devdata(file);
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	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int errCode;
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	if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
		return -EINVAL;
	/* NT100x has a 8-bit register space */
	errCode = usbvision_read_reg(usbvision, reg->reg&0xff);
	if (errCode < 0) {
		err("%s: VIDIOC_DBG_G_REGISTER failed: error %d",
		    __FUNCTION__, errCode);
		return errCode;
	}
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	reg->val = errCode;
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	return 0;
}
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static int vidioc_s_register (struct file *file, void *priv,
				struct v4l2_register *reg)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int errCode;
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	if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
		return -EINVAL;
	/* NT100x has a 8-bit register space */
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	errCode = usbvision_write_reg(usbvision, reg->reg&0xff, reg->val);
	if (errCode < 0) {
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		err("%s: VIDIOC_DBG_S_REGISTER failed: error %d",
		    __FUNCTION__, errCode);
		return errCode;
	}
	return 0;
}
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#endif
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static int vidioc_querycap (struct file *file, void  *priv,
					struct v4l2_capability *vc)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);

	strlcpy(vc->driver, "USBVision", sizeof(vc->driver));
	strlcpy(vc->card,
		usbvision_device_data[usbvision->DevModel].ModelString,
		sizeof(vc->card));
	strlcpy(vc->bus_info, usbvision->dev->dev.bus_id,
		sizeof(vc->bus_info));
	vc->version = USBVISION_DRIVER_VERSION;
	vc->capabilities = V4L2_CAP_VIDEO_CAPTURE |
		V4L2_CAP_AUDIO |
		V4L2_CAP_READWRITE |
		V4L2_CAP_STREAMING |
		(usbvision->have_tuner ? V4L2_CAP_TUNER : 0);
	return 0;
}

static int vidioc_enum_input (struct file *file, void *priv,
				struct v4l2_input *vi)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int chan;

	if ((vi->index >= usbvision->video_inputs) || (vi->index < 0) )
		return -EINVAL;
	if (usbvision->have_tuner) {
		chan = vi->index;
	} else {
		chan = vi->index + 1; /*skip Television string*/
	}
	/* Determine the requested input characteristics
	   specific for each usbvision card model */
	switch(chan) {
	case 0:
		if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
			strcpy(vi->name, "White Video Input");
		} else {
			strcpy(vi->name, "Television");
			vi->type = V4L2_INPUT_TYPE_TUNER;
			vi->audioset = 1;
			vi->tuner = chan;
			vi->std = USBVISION_NORMS;
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		}
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		break;
	case 1:
		vi->type = V4L2_INPUT_TYPE_CAMERA;
		if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
			strcpy(vi->name, "Green Video Input");
		} else {
			strcpy(vi->name, "Composite Video Input");
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		}
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		vi->std = V4L2_STD_PAL;
		break;
	case 2:
		vi->type = V4L2_INPUT_TYPE_CAMERA;
		if (usbvision_device_data[usbvision->DevModel].VideoChannels == 4) {
			strcpy(vi->name, "Yellow Video Input");
		} else {
			strcpy(vi->name, "S-Video Input");
619
		}
620 621 622 623 624 625 626 627 628 629
		vi->std = V4L2_STD_PAL;
		break;
	case 3:
		vi->type = V4L2_INPUT_TYPE_CAMERA;
		strcpy(vi->name, "Red Video Input");
		vi->std = V4L2_STD_PAL;
		break;
	}
	return 0;
}
630

631 632 633 634 635
static int vidioc_g_input (struct file *file, void *priv, unsigned int *input)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
636

637 638 639
	*input = usbvision->ctl_input;
	return 0;
}
640

641 642 643 644 645
static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
646

647 648
	if ((input >= usbvision->video_inputs) || (input < 0) )
		return -EINVAL;
649

650
	mutex_lock(&usbvision->lock);
651
	usbvision_muxsel(usbvision, input);
652 653 654 655
	usbvision_set_input(usbvision);
	usbvision_set_output(usbvision,
			     usbvision->curwidth,
			     usbvision->curheight);
656
	mutex_unlock(&usbvision->lock);
657 658
	return 0;
}
659

660 661 662 663 664 665
static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	usbvision->tvnormId=*id;
666

667
	mutex_lock(&usbvision->lock);
668 669
	call_i2c_clients(usbvision, VIDIOC_S_STD,
			 &usbvision->tvnormId);
670
	mutex_unlock(&usbvision->lock);
671 672
	/* propagate the change to the decoder */
	usbvision_muxsel(usbvision, usbvision->ctl_input);
673

674 675
	return 0;
}
676

677 678 679 680 681 682
static int vidioc_g_tuner (struct file *file, void *priv,
				struct v4l2_tuner *vt)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
683

684 685 686 687 688 689 690 691 692 693
	if (!usbvision->have_tuner || vt->index)	// Only tuner 0
		return -EINVAL;
	if(usbvision->radio) {
		strcpy(vt->name, "Radio");
		vt->type = V4L2_TUNER_RADIO;
	} else {
		strcpy(vt->name, "Television");
	}
	/* Let clients fill in the remainder of this struct */
	call_i2c_clients(usbvision,VIDIOC_G_TUNER,vt);
694

695 696
	return 0;
}
697

698 699 700 701 702 703
static int vidioc_s_tuner (struct file *file, void *priv,
				struct v4l2_tuner *vt)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
704

705 706 707 708 709
	// Only no or one tuner for now
	if (!usbvision->have_tuner || vt->index)
		return -EINVAL;
	/* let clients handle this */
	call_i2c_clients(usbvision,VIDIOC_S_TUNER,vt);
710

711 712
	return 0;
}
713

714 715 716 717 718 719
static int vidioc_g_frequency (struct file *file, void *priv,
				struct v4l2_frequency *freq)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
720

721 722 723 724 725 726 727
	freq->tuner = 0; // Only one tuner
	if(usbvision->radio) {
		freq->type = V4L2_TUNER_RADIO;
	} else {
		freq->type = V4L2_TUNER_ANALOG_TV;
	}
	freq->frequency = usbvision->freq;
728

729 730
	return 0;
}
731

732 733 734 735 736 737
static int vidioc_s_frequency (struct file *file, void *priv,
				struct v4l2_frequency *freq)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
738

739 740 741
	// Only no or one tuner for now
	if (!usbvision->have_tuner || freq->tuner)
		return -EINVAL;
742

743 744
	usbvision->freq = freq->frequency;
	call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
745

746 747
	return 0;
}
748

749 750 751 752 753
static int vidioc_g_audio (struct file *file, void *priv, struct v4l2_audio *a)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
754

755 756 757 758 759 760
	memset(a,0,sizeof(*a));
	if(usbvision->radio) {
		strcpy(a->name,"Radio");
	} else {
		strcpy(a->name, "TV");
	}
761

762 763
	return 0;
}
764

765 766 767 768 769 770
static int vidioc_s_audio (struct file *file, void *fh,
			  struct v4l2_audio *a)
{
	if(a->index) {
		return -EINVAL;
	}
771

772 773
	return 0;
}
774

775 776 777 778 779 780 781
static int vidioc_queryctrl (struct file *file, void *priv,
			    struct v4l2_queryctrl *ctrl)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int id=ctrl->id;
782

783 784
	memset(ctrl,0,sizeof(*ctrl));
	ctrl->id=id;
785

786
	call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
787

788 789
	if (!ctrl->type)
		return -EINVAL;
790

791 792
	return 0;
}
793

794 795 796 797 798 799 800
static int vidioc_g_ctrl (struct file *file, void *priv,
				struct v4l2_control *ctrl)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	call_i2c_clients(usbvision, VIDIOC_G_CTRL, ctrl);
801

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	return 0;
}

static int vidioc_s_ctrl (struct file *file, void *priv,
				struct v4l2_control *ctrl)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	call_i2c_clients(usbvision, VIDIOC_S_CTRL, ctrl);

	return 0;
}

static int vidioc_reqbufs (struct file *file,
			   void *priv, struct v4l2_requestbuffers *vr)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int ret;

	RESTRICT_TO_RANGE(vr->count,1,USBVISION_NUMFRAMES);

	/* Check input validity:
	   the user must do a VIDEO CAPTURE and MMAP method. */
	if((vr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
	   (vr->memory != V4L2_MEMORY_MMAP))
		return -EINVAL;

	if(usbvision->streaming == Stream_On) {
		if ((ret = usbvision_stream_interrupt(usbvision)))
			return ret;
835
	}
836 837 838 839 840 841 842

	usbvision_frames_free(usbvision);
	usbvision_empty_framequeues(usbvision);
	vr->count = usbvision_frames_alloc(usbvision,vr->count);

	usbvision->curFrame = NULL;

843 844 845
	return 0;
}

846 847
static int vidioc_querybuf (struct file *file,
			    void *priv, struct v4l2_buffer *vb)
848
{
849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	struct usbvision_frame *frame;

	/* FIXME : must control
	   that buffers are mapped (VIDIOC_REQBUFS has been called) */
	if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
		return -EINVAL;
	}
	if(vb->index>=usbvision->num_frames)  {
		return -EINVAL;
	}
	/* Updating the corresponding frame state */
	vb->flags = 0;
	frame = &usbvision->frame[vb->index];
	if(frame->grabstate >= FrameState_Ready)
		vb->flags |= V4L2_BUF_FLAG_QUEUED;
	if(frame->grabstate >= FrameState_Done)
		vb->flags |= V4L2_BUF_FLAG_DONE;
	if(frame->grabstate == FrameState_Unused)
		vb->flags |= V4L2_BUF_FLAG_MAPPED;
	vb->memory = V4L2_MEMORY_MMAP;

	vb->m.offset = vb->index*PAGE_ALIGN(usbvision->max_frame_size);

	vb->memory = V4L2_MEMORY_MMAP;
	vb->field = V4L2_FIELD_NONE;
	vb->length = usbvision->curwidth*
		usbvision->curheight*
		usbvision->palette.bytes_per_pixel;
	vb->timestamp = usbvision->frame[vb->index].timestamp;
	vb->sequence = usbvision->frame[vb->index].sequence;
	return 0;
883 884
}

885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085
static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	struct usbvision_frame *frame;
	unsigned long lock_flags;

	/* FIXME : works only on VIDEO_CAPTURE MODE, MMAP. */
	if(vb->type != V4L2_CAP_VIDEO_CAPTURE) {
		return -EINVAL;
	}
	if(vb->index>=usbvision->num_frames)  {
		return -EINVAL;
	}

	frame = &usbvision->frame[vb->index];

	if (frame->grabstate != FrameState_Unused) {
		return -EAGAIN;
	}

	/* Mark it as ready and enqueue frame */
	frame->grabstate = FrameState_Ready;
	frame->scanstate = ScanState_Scanning;
	frame->scanlength = 0;	/* Accumulated in usbvision_parse_data() */

	vb->flags &= ~V4L2_BUF_FLAG_DONE;

	/* set v4l2_format index */
	frame->v4l2_format = usbvision->palette;

	spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
	list_add_tail(&usbvision->frame[vb->index].frame, &usbvision->inqueue);
	spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);

	return 0;
}

static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *vb)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int ret;
	struct usbvision_frame *f;
	unsigned long lock_flags;

	if (vb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;

	if (list_empty(&(usbvision->outqueue))) {
		if (usbvision->streaming == Stream_Idle)
			return -EINVAL;
		ret = wait_event_interruptible
			(usbvision->wait_frame,
			 !list_empty(&(usbvision->outqueue)));
		if (ret)
			return ret;
	}

	spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
	f = list_entry(usbvision->outqueue.next,
		       struct usbvision_frame, frame);
	list_del(usbvision->outqueue.next);
	spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);

	f->grabstate = FrameState_Unused;

	vb->memory = V4L2_MEMORY_MMAP;
	vb->flags = V4L2_BUF_FLAG_MAPPED |
		V4L2_BUF_FLAG_QUEUED |
		V4L2_BUF_FLAG_DONE;
	vb->index = f->index;
	vb->sequence = f->sequence;
	vb->timestamp = f->timestamp;
	vb->field = V4L2_FIELD_NONE;
	vb->bytesused = f->scanlength;

	return 0;
}

static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;

	usbvision->streaming = Stream_On;
	call_i2c_clients(usbvision,VIDIOC_STREAMON , &b);

	return 0;
}

static int vidioc_streamoff(struct file *file,
			    void *priv, enum v4l2_buf_type type)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int b=V4L2_BUF_TYPE_VIDEO_CAPTURE;

	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;

	if(usbvision->streaming == Stream_On) {
		usbvision_stream_interrupt(usbvision);
		/* Stop all video streamings */
		call_i2c_clients(usbvision,VIDIOC_STREAMOFF , &b);
	}
	usbvision_empty_framequeues(usbvision);

	return 0;
}

static int vidioc_enum_fmt_cap (struct file *file, void  *priv,
					struct v4l2_fmtdesc *vfd)
{
	if(vfd->index>=USBVISION_SUPPORTED_PALETTES-1) {
		return -EINVAL;
	}
	vfd->flags = 0;
	vfd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
	strcpy(vfd->description,usbvision_v4l2_format[vfd->index].desc);
	vfd->pixelformat = usbvision_v4l2_format[vfd->index].format;
	memset(vfd->reserved, 0, sizeof(vfd->reserved));
	return 0;
}

static int vidioc_g_fmt_cap (struct file *file, void *priv,
					struct v4l2_format *vf)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	vf->fmt.pix.width = usbvision->curwidth;
	vf->fmt.pix.height = usbvision->curheight;
	vf->fmt.pix.pixelformat = usbvision->palette.format;
	vf->fmt.pix.bytesperline =
		usbvision->curwidth*usbvision->palette.bytes_per_pixel;
	vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*usbvision->curheight;
	vf->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
	vf->fmt.pix.field = V4L2_FIELD_NONE; /* Always progressive image */

	return 0;
}

static int vidioc_try_fmt_cap (struct file *file, void *priv,
			       struct v4l2_format *vf)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int formatIdx;

	/* Find requested format in available ones */
	for(formatIdx=0;formatIdx<USBVISION_SUPPORTED_PALETTES;formatIdx++) {
		if(vf->fmt.pix.pixelformat ==
		   usbvision_v4l2_format[formatIdx].format) {
			usbvision->palette = usbvision_v4l2_format[formatIdx];
			break;
		}
	}
	/* robustness */
	if(formatIdx == USBVISION_SUPPORTED_PALETTES) {
		return -EINVAL;
	}
	RESTRICT_TO_RANGE(vf->fmt.pix.width, MIN_FRAME_WIDTH, MAX_FRAME_WIDTH);
	RESTRICT_TO_RANGE(vf->fmt.pix.height, MIN_FRAME_HEIGHT, MAX_FRAME_HEIGHT);

	vf->fmt.pix.bytesperline = vf->fmt.pix.width*
		usbvision->palette.bytes_per_pixel;
	vf->fmt.pix.sizeimage = vf->fmt.pix.bytesperline*vf->fmt.pix.height;

	return 0;
}

static int vidioc_s_fmt_cap(struct file *file, void *priv,
			       struct v4l2_format *vf)
{
	struct video_device *dev = video_devdata(file);
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
	int ret;

	if( 0 != (ret=vidioc_try_fmt_cap (file, priv, vf)) ) {
		return ret;
	}

	/* stop io in case it is already in progress */
	if(usbvision->streaming == Stream_On) {
		if ((ret = usbvision_stream_interrupt(usbvision)))
			return ret;
	}
	usbvision_frames_free(usbvision);
	usbvision_empty_framequeues(usbvision);

	usbvision->curFrame = NULL;

	/* by now we are committed to the new data... */
1086
	mutex_lock(&usbvision->lock);
1087
	usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
1088
	mutex_unlock(&usbvision->lock);
1089 1090 1091

	return 0;
}
1092

A
Al Viro 已提交
1093
static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1094 1095 1096
		      size_t count, loff_t *ppos)
{
	struct video_device *dev = video_devdata(file);
1097 1098
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1099 1100 1101 1102 1103 1104
	int noblock = file->f_flags & O_NONBLOCK;
	unsigned long lock_flags;

	int ret,i;
	struct usbvision_frame *frame;

1105 1106
	PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__,
	       (unsigned long)count, noblock);
1107 1108 1109 1110

	if (!USBVISION_IS_OPERATIONAL(usbvision) || (buf == NULL))
		return -EFAULT;

1111 1112 1113
	/* This entry point is compatible with the mmap routines
	   so that a user can do either VIDIOC_QBUF/VIDIOC_DQBUF
	   to get frames or call read on the device. */
1114
	if(!usbvision->num_frames) {
1115 1116
		/* First, allocate some frames to work with
		   if this has not been done with VIDIOC_REQBUF */
1117 1118 1119 1120 1121 1122 1123 1124 1125 1126
		usbvision_frames_free(usbvision);
		usbvision_empty_framequeues(usbvision);
		usbvision_frames_alloc(usbvision,USBVISION_NUMFRAMES);
	}

	if(usbvision->streaming != Stream_On) {
		/* no stream is running, make it running ! */
		usbvision->streaming = Stream_On;
		call_i2c_clients(usbvision,VIDIOC_STREAMON , NULL);
	}
1127

1128 1129
	/* Then, enqueue as many frames as possible
	   (like a user of VIDIOC_QBUF would do) */
1130
	for(i=0;i<usbvision->num_frames;i++) {
1131 1132 1133 1134 1135
		frame = &usbvision->frame[i];
		if(frame->grabstate == FrameState_Unused) {
			/* Mark it as ready and enqueue frame */
			frame->grabstate = FrameState_Ready;
			frame->scanstate = ScanState_Scanning;
1136 1137
			/* Accumulated in usbvision_parse_data() */
			frame->scanlength = 0;
1138 1139 1140 1141 1142 1143

			/* set v4l2_format index */
			frame->v4l2_format = usbvision->palette;

			spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
			list_add_tail(&frame->frame, &usbvision->inqueue);
1144 1145
			spin_unlock_irqrestore(&usbvision->queue_lock,
					       lock_flags);
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172
		}
	}

	/* Then try to steal a frame (like a VIDIOC_DQBUF would do) */
	if (list_empty(&(usbvision->outqueue))) {
		if(noblock)
			return -EAGAIN;

		ret = wait_event_interruptible
			(usbvision->wait_frame,
			 !list_empty(&(usbvision->outqueue)));
		if (ret)
			return ret;
	}

	spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
	frame = list_entry(usbvision->outqueue.next,
			   struct usbvision_frame, frame);
	list_del(usbvision->outqueue.next);
	spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags);

	/* An error returns an empty frame */
	if (frame->grabstate == FrameState_Error) {
		frame->bytes_read = 0;
		return 0;
	}

1173 1174 1175
	PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
	       __FUNCTION__,
	       frame->index, frame->bytes_read, frame->scanlength);
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185

	/* copy bytes to user space; we allow for partials reads */
	if ((count + frame->bytes_read) > (unsigned long)frame->scanlength)
		count = frame->scanlength - frame->bytes_read;

	if (copy_to_user(buf, frame->data + frame->bytes_read, count)) {
		return -EFAULT;
	}

	frame->bytes_read += count;
1186 1187 1188
	PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
	       __FUNCTION__,
	       (unsigned long)count, frame->bytes_read);
1189

1190
	/* For now, forget the frame if it has not been read in one shot. */
1191 1192 1193 1194
/* 	if (frame->bytes_read >= frame->scanlength) {// All data has been read */
		frame->bytes_read = 0;

		/* Mark it as available to be used again. */
1195
		frame->grabstate = FrameState_Unused;
1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208
/* 	} */

	return count;
}

static int usbvision_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
{
	unsigned long size = vma->vm_end - vma->vm_start,
		start = vma->vm_start;
	void *pos;
	u32 i;

	struct video_device *dev = video_devdata(file);
1209 1210
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1211

1212 1213
	PDEBUG(DBG_MMAP, "mmap");

1214
	mutex_lock(&usbvision->lock);
1215 1216

	if (!USBVISION_IS_OPERATIONAL(usbvision)) {
1217
		mutex_unlock(&usbvision->lock);
1218 1219 1220 1221
		return -EFAULT;
	}

	if (!(vma->vm_flags & VM_WRITE) ||
1222
	    size != PAGE_ALIGN(usbvision->max_frame_size)) {
1223
		mutex_unlock(&usbvision->lock);
1224 1225 1226
		return -EINVAL;
	}

1227
	for (i = 0; i < usbvision->num_frames; i++) {
1228 1229
		if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
		    vma->vm_pgoff)
1230 1231
			break;
	}
1232
	if (i == usbvision->num_frames) {
1233 1234
		PDEBUG(DBG_MMAP,
		       "mmap: user supplied mapping address is out of range");
1235
		mutex_unlock(&usbvision->lock);
1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246
		return -EINVAL;
	}

	/* VM_IO is eventually going to replace PageReserved altogether */
	vma->vm_flags |= VM_IO;
	vma->vm_flags |= VM_RESERVED;	/* avoid to swap out this VMA */

	pos = usbvision->frame[i].data;
	while (size > 0) {

		if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
1247
			PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1248
			mutex_unlock(&usbvision->lock);
1249 1250 1251 1252 1253 1254 1255
			return -EAGAIN;
		}
		start += PAGE_SIZE;
		pos += PAGE_SIZE;
		size -= PAGE_SIZE;
	}

1256
	mutex_unlock(&usbvision->lock);
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267
	return 0;
}


/*
 * Here comes the stuff for radio on usbvision based devices
 *
 */
static int usbvision_radio_open(struct inode *inode, struct file *file)
{
	struct video_device *dev = video_devdata(file);
1268 1269
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1270 1271 1272 1273
	int errCode = 0;

	PDEBUG(DBG_IO, "%s:", __FUNCTION__);

1274
	mutex_lock(&usbvision->lock);
1275 1276 1277 1278 1279 1280 1281 1282 1283 1284

	if (usbvision->user) {
		err("%s: Someone tried to open an already opened USBVision Radio!", __FUNCTION__);
		errCode = -EBUSY;
	}
	else {
		if(PowerOnAtOpen) {
			usbvision_reset_powerOffTimer(usbvision);
			if (usbvision->power == 0) {
				usbvision_power_on(usbvision);
1285
				usbvision_i2c_register(usbvision);
1286 1287 1288
			}
		}

1289 1290 1291 1292
		/* Alternate interface 1 is is the biggest frame size */
		errCode = usbvision_set_alternate(usbvision);
		if (errCode < 0) {
			usbvision->last_error = errCode;
1293 1294
			errCode = -EBUSY;
			goto out;
1295 1296
		}

1297 1298 1299 1300 1301 1302 1303 1304 1305
		// If so far no errors then we shall start the radio
		usbvision->radio = 1;
		call_i2c_clients(usbvision,AUDC_SET_RADIO,&usbvision->tuner_type);
		usbvision_set_audio(usbvision, USBVISION_AUDIO_RADIO);
		usbvision->user++;
	}

	if (errCode) {
		if (PowerOnAtOpen) {
1306
			usbvision_i2c_unregister(usbvision);
1307 1308 1309 1310
			usbvision_power_off(usbvision);
			usbvision->initialized = 0;
		}
	}
1311
out:
1312
	mutex_unlock(&usbvision->lock);
1313 1314 1315 1316 1317 1318 1319
	return errCode;
}


static int usbvision_radio_close(struct inode *inode, struct file *file)
{
	struct video_device *dev = video_devdata(file);
1320 1321
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1322 1323 1324 1325
	int errCode = 0;

	PDEBUG(DBG_IO, "");

1326
	mutex_lock(&usbvision->lock);
1327

1328 1329 1330 1331 1332
	/* Set packet size to 0 */
	usbvision->ifaceAlt=0;
	errCode = usb_set_interface(usbvision->dev, usbvision->iface,
				    usbvision->ifaceAlt);

1333 1334 1335 1336 1337 1338 1339 1340 1341
	usbvision_audio_off(usbvision);
	usbvision->radio=0;
	usbvision->user--;

	if (PowerOnAtOpen) {
		usbvision_set_powerOffTimer(usbvision);
		usbvision->initialized = 0;
	}

1342
	mutex_unlock(&usbvision->lock);
1343 1344

	if (usbvision->remove_pending) {
1345
		printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361
		usbvision_release(usbvision);
	}


	PDEBUG(DBG_IO, "success");

	return errCode;
}

/*
 * Here comes the stuff for vbi on usbvision based devices
 *
 */
static int usbvision_vbi_open(struct inode *inode, struct file *file)
{
	/* TODO */
1362
	return -ENODEV;
1363 1364 1365 1366 1367 1368

}

static int usbvision_vbi_close(struct inode *inode, struct file *file)
{
	/* TODO */
1369
	return -ENODEV;
1370 1371 1372 1373 1374 1375
}

static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
				 unsigned int cmd, void *arg)
{
	/* TODO */
1376
	return -ENOIOCTLCMD;
1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390
}

static int usbvision_vbi_ioctl(struct inode *inode, struct file *file,
		       unsigned int cmd, unsigned long arg)
{
	return video_usercopy(inode, file, cmd, arg, usbvision_do_vbi_ioctl);
}


//
// Video registration stuff
//

// Video template
1391
static const struct file_operations usbvision_fops = {
1392 1393 1394 1395 1396
	.owner             = THIS_MODULE,
	.open		= usbvision_v4l2_open,
	.release	= usbvision_v4l2_close,
	.read		= usbvision_v4l2_read,
	.mmap		= usbvision_v4l2_mmap,
1397
	.ioctl		= video_ioctl2,
1398
	.llseek		= no_llseek,
1399 1400
/* 	.poll          = video_poll, */
	.compat_ioctl  = v4l_compat_ioctl32,
1401 1402 1403 1404 1405 1406 1407 1408
};
static struct video_device usbvision_video_template = {
	.owner             = THIS_MODULE,
	.type		= VID_TYPE_TUNER | VID_TYPE_CAPTURE,
	.fops		= &usbvision_fops,
	.name           = "usbvision-video",
	.release	= video_device_release,
	.minor		= -1,
1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423
	.vidioc_querycap      = vidioc_querycap,
	.vidioc_enum_fmt_cap  = vidioc_enum_fmt_cap,
	.vidioc_g_fmt_cap     = vidioc_g_fmt_cap,
	.vidioc_try_fmt_cap   = vidioc_try_fmt_cap,
	.vidioc_s_fmt_cap     = vidioc_s_fmt_cap,
	.vidioc_reqbufs       = vidioc_reqbufs,
	.vidioc_querybuf      = vidioc_querybuf,
	.vidioc_qbuf          = vidioc_qbuf,
	.vidioc_dqbuf         = vidioc_dqbuf,
	.vidioc_s_std         = vidioc_s_std,
	.vidioc_enum_input    = vidioc_enum_input,
	.vidioc_g_input       = vidioc_g_input,
	.vidioc_s_input       = vidioc_s_input,
	.vidioc_queryctrl     = vidioc_queryctrl,
	.vidioc_g_audio       = vidioc_g_audio,
1424
	.vidioc_s_audio       = vidioc_s_audio,
1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441
	.vidioc_g_ctrl        = vidioc_g_ctrl,
	.vidioc_s_ctrl        = vidioc_s_ctrl,
	.vidioc_streamon      = vidioc_streamon,
	.vidioc_streamoff     = vidioc_streamoff,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
/*  	.vidiocgmbuf          = vidiocgmbuf, */
#endif
	.vidioc_g_tuner       = vidioc_g_tuner,
	.vidioc_s_tuner       = vidioc_s_tuner,
	.vidioc_g_frequency   = vidioc_g_frequency,
	.vidioc_s_frequency   = vidioc_s_frequency,
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.vidioc_g_register    = vidioc_g_register,
	.vidioc_s_register    = vidioc_s_register,
#endif
	.tvnorms              = USBVISION_NORMS,
	.current_norm         = V4L2_STD_PAL
1442 1443 1444 1445
};


// Radio template
1446
static const struct file_operations usbvision_radio_fops = {
1447 1448 1449
	.owner             = THIS_MODULE,
	.open		= usbvision_radio_open,
	.release	= usbvision_radio_close,
1450
	.ioctl		= video_ioctl2,
1451
	.llseek		= no_llseek,
1452
	.compat_ioctl  = v4l_compat_ioctl32,
1453 1454 1455 1456 1457 1458 1459 1460
};

static struct video_device usbvision_radio_template=
{
	.owner             = THIS_MODULE,
	.type		= VID_TYPE_TUNER,
	.fops		= &usbvision_radio_fops,
	.name           = "usbvision-radio",
1461
	.release	= video_device_release,
1462
	.minor		= -1,
1463 1464 1465 1466 1467 1468
	.vidioc_querycap      = vidioc_querycap,
	.vidioc_enum_input    = vidioc_enum_input,
	.vidioc_g_input       = vidioc_g_input,
	.vidioc_s_input       = vidioc_s_input,
	.vidioc_queryctrl     = vidioc_queryctrl,
	.vidioc_g_audio       = vidioc_g_audio,
1469
	.vidioc_s_audio       = vidioc_s_audio,
1470 1471 1472 1473 1474 1475 1476 1477 1478
	.vidioc_g_ctrl        = vidioc_g_ctrl,
	.vidioc_s_ctrl        = vidioc_s_ctrl,
	.vidioc_g_tuner       = vidioc_g_tuner,
	.vidioc_s_tuner       = vidioc_s_tuner,
	.vidioc_g_frequency   = vidioc_g_frequency,
	.vidioc_s_frequency   = vidioc_s_frequency,

	.tvnorms              = USBVISION_NORMS,
	.current_norm         = V4L2_STD_PAL
1479 1480 1481
};

// vbi template
1482
static const struct file_operations usbvision_vbi_fops = {
1483 1484 1485 1486 1487
	.owner             = THIS_MODULE,
	.open		= usbvision_vbi_open,
	.release	= usbvision_vbi_close,
	.ioctl		= usbvision_vbi_ioctl,
	.llseek		= no_llseek,
1488
	.compat_ioctl  = v4l_compat_ioctl32,
1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530
};

static struct video_device usbvision_vbi_template=
{
	.owner             = THIS_MODULE,
	.type		= VID_TYPE_TUNER,
	.fops		= &usbvision_vbi_fops,
	.release	= video_device_release,
	.name           = "usbvision-vbi",
	.minor		= -1,
};


static struct video_device *usbvision_vdev_init(struct usb_usbvision *usbvision,
					struct video_device *vdev_template,
					char *name)
{
	struct usb_device *usb_dev = usbvision->dev;
	struct video_device *vdev;

	if (usb_dev == NULL) {
		err("%s: usbvision->dev is not set", __FUNCTION__);
		return NULL;
	}

	vdev = video_device_alloc();
	if (NULL == vdev) {
		return NULL;
	}
	*vdev = *vdev_template;
//	vdev->minor   = -1;
	vdev->dev     = &usb_dev->dev;
	snprintf(vdev->name, sizeof(vdev->name), "%s", name);
	video_set_drvdata(vdev, usbvision);
	return vdev;
}

// unregister video4linux devices
static void usbvision_unregister_video(struct usb_usbvision *usbvision)
{
	// vbi Device:
	if (usbvision->vbi) {
1531 1532
		PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
		       usbvision->vbi->minor & 0x1f);
1533 1534
		if (usbvision->vbi->minor != -1) {
			video_unregister_device(usbvision->vbi);
1535
		} else {
1536 1537 1538 1539 1540 1541 1542
			video_device_release(usbvision->vbi);
		}
		usbvision->vbi = NULL;
	}

	// Radio Device:
	if (usbvision->rdev) {
1543 1544
		PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
		       usbvision->rdev->minor & 0x1f);
1545 1546
		if (usbvision->rdev->minor != -1) {
			video_unregister_device(usbvision->rdev);
1547
		} else {
1548 1549 1550 1551 1552 1553 1554
			video_device_release(usbvision->rdev);
		}
		usbvision->rdev = NULL;
	}

	// Video Device:
	if (usbvision->vdev) {
1555 1556
		PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
		       usbvision->vdev->minor & 0x1f);
1557 1558
		if (usbvision->vdev->minor != -1) {
			video_unregister_device(usbvision->vdev);
1559
		} else {
1560 1561 1562 1563 1564 1565 1566 1567 1568 1569
			video_device_release(usbvision->vdev);
		}
		usbvision->vdev = NULL;
	}
}

// register video4linux devices
static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
{
	// Video Device:
1570 1571 1572
	usbvision->vdev = usbvision_vdev_init(usbvision,
					      &usbvision_video_template,
					      "USBVision Video");
1573 1574 1575
	if (usbvision->vdev == NULL) {
		goto err_exit;
	}
1576 1577 1578
	if (video_register_device(usbvision->vdev,
				  VFL_TYPE_GRABBER,
				  video_nr)<0) {
1579 1580
		goto err_exit;
	}
1581 1582
	printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
	       usbvision->nr,usbvision->vdev->minor & 0x1f);
1583 1584 1585 1586

	// Radio Device:
	if (usbvision_device_data[usbvision->DevModel].Radio) {
		// usbvision has radio
1587 1588 1589
		usbvision->rdev = usbvision_vdev_init(usbvision,
						      &usbvision_radio_template,
						      "USBVision Radio");
1590 1591 1592
		if (usbvision->rdev == NULL) {
			goto err_exit;
		}
1593 1594 1595
		if (video_register_device(usbvision->rdev,
					  VFL_TYPE_RADIO,
					  radio_nr)<0) {
1596 1597
			goto err_exit;
		}
1598 1599
		printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
		       usbvision->nr, usbvision->rdev->minor & 0x1f);
1600 1601 1602
	}
	// vbi Device:
	if (usbvision_device_data[usbvision->DevModel].vbi) {
1603 1604 1605
		usbvision->vbi = usbvision_vdev_init(usbvision,
						     &usbvision_vbi_template,
						     "USBVision VBI");
1606 1607 1608
		if (usbvision->vdev == NULL) {
			goto err_exit;
		}
1609 1610 1611
		if (video_register_device(usbvision->vbi,
					  VFL_TYPE_VBI,
					  vbi_nr)<0) {
1612 1613
			goto err_exit;
		}
1614 1615
		printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
		       usbvision->nr,usbvision->vbi->minor & 0x1f);
1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
	}
	// all done
	return 0;

 err_exit:
	err("USBVision[%d]: video_register_device() failed", usbvision->nr);
	usbvision_unregister_video(usbvision);
	return -1;
}

/*
 * usbvision_alloc()
 *
1629 1630
 * This code allocates the struct usb_usbvision.
 * It is filled with default values.
1631 1632 1633 1634 1635 1636 1637 1638
 *
 * Returns NULL on error, a pointer to usb_usbvision else.
 *
 */
static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
{
	struct usb_usbvision *usbvision;

1639 1640
	if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
	    NULL) {
1641 1642 1643 1644 1645
		goto err_exit;
	}

	usbvision->dev = dev;

1646
	mutex_init(&usbvision->lock);	/* available */
1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679

	// prepare control urb for control messages during interrupts
	usbvision->ctrlUrb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL);
	if (usbvision->ctrlUrb == NULL) {
		goto err_exit;
	}
	init_waitqueue_head(&usbvision->ctrlUrb_wq);

	usbvision_init_powerOffTimer(usbvision);

	return usbvision;

err_exit:
	if (usbvision && usbvision->ctrlUrb) {
		usb_free_urb(usbvision->ctrlUrb);
	}
	if (usbvision) {
		kfree(usbvision);
	}
	return NULL;
}

/*
 * usbvision_release()
 *
 * This code does final release of struct usb_usbvision. This happens
 * after the device is disconnected -and- all clients closed their files.
 *
 */
static void usbvision_release(struct usb_usbvision *usbvision)
{
	PDEBUG(DBG_PROBE, "");

1680
	mutex_lock(&usbvision->lock);
1681 1682 1683 1684 1685

	usbvision_reset_powerOffTimer(usbvision);

	usbvision->initialized = 0;

1686
	mutex_unlock(&usbvision->lock);
1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700

	usbvision_remove_sysfs(usbvision->vdev);
	usbvision_unregister_video(usbvision);

	if (usbvision->ctrlUrb) {
		usb_free_urb(usbvision->ctrlUrb);
	}

	kfree(usbvision);

	PDEBUG(DBG_PROBE, "success");
}


1701
/*********************** usb interface **********************************/
1702 1703 1704

static void usbvision_configure_video(struct usb_usbvision *usbvision)
{
1705
	int model;
1706 1707 1708 1709 1710 1711 1712

	if (usbvision == NULL)
		return;

	model = usbvision->DevModel;
	usbvision->palette = usbvision_v4l2_format[2]; // V4L2_PIX_FMT_RGB24;

1713
	if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1714 1715
		usbvision->Vin_Reg2_Preset =
			usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1716 1717 1718 1719
	} else {
		usbvision->Vin_Reg2_Preset = 0;
	}

1720
	usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1721 1722 1723 1724 1725

	usbvision->video_inputs = usbvision_device_data[model].VideoChannels;
	usbvision->ctl_input = 0;

	/* This should be here to make i2c clients to be able to register */
1726 1727
	/* first switch off audio */
	usbvision_audio_off(usbvision);
1728
	if (!PowerOnAtOpen) {
1729 1730
		/* and then power up the noisy tuner */
		usbvision_power_on(usbvision);
1731
		usbvision_i2c_register(usbvision);
1732 1733 1734 1735 1736 1737 1738 1739 1740 1741
	}
}

/*
 * usbvision_probe()
 *
 * This procedure queries device descriptor and accepts the interface
 * if it looks like USBVISION video device
 *
 */
1742 1743
static int __devinit usbvision_probe(struct usb_interface *intf,
				     const struct usb_device_id *devid)
1744
{
1745 1746
	struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
	struct usb_interface *uif;
1747 1748 1749 1750
	__u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
	const struct usb_host_interface *interface;
	struct usb_usbvision *usbvision = NULL;
	const struct usb_endpoint_descriptor *endpoint;
1751
	int model,i;
1752 1753

	PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1754 1755
				dev->descriptor.idVendor,
				dev->descriptor.idProduct, ifnum);
1756

1757
	model = devid->driver_info;
1758
	if ( (model<0) || (model>=usbvision_device_data_size) ) {
1759
		PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1760 1761
		return -ENODEV;
	}
1762 1763
	printk(KERN_INFO "%s: %s found\n", __FUNCTION__,
				usbvision_device_data[model].ModelString);
1764 1765 1766

	if (usbvision_device_data[model].Interface >= 0) {
		interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1767
	} else {
1768 1769 1770
		interface = &dev->actconfig->interface[ifnum]->altsetting[0];
	}
	endpoint = &interface->endpoint[1].desc;
1771 1772 1773 1774 1775 1776
	if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
	    USB_ENDPOINT_XFER_ISOC) {
		err("%s: interface %d. has non-ISO endpoint!",
		    __FUNCTION__, ifnum);
		err("%s: Endpoint attributes %d",
		    __FUNCTION__, endpoint->bmAttributes);
1777 1778
		return -ENODEV;
	}
1779 1780 1781 1782
	if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
	    USB_DIR_OUT) {
		err("%s: interface %d. has ISO OUT endpoint!",
		    __FUNCTION__, ifnum);
1783 1784 1785 1786 1787 1788 1789
		return -ENODEV;
	}

	if ((usbvision = usbvision_alloc(dev)) == NULL) {
		err("%s: couldn't allocate USBVision struct", __FUNCTION__);
		return -ENOMEM;
	}
1790

1791 1792
	if (dev->descriptor.bNumConfigurations > 1) {
		usbvision->bridgeType = BRIDGE_NT1004;
1793
	} else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1794
		usbvision->bridgeType = BRIDGE_NT1005;
1795
	} else {
1796 1797 1798 1799
		usbvision->bridgeType = BRIDGE_NT1003;
	}
	PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);

1800
	mutex_lock(&usbvision->lock);
1801

1802 1803 1804 1805 1806 1807 1808 1809 1810
	/* compute alternate max packet sizes */
	uif = dev->actconfig->interface[0];

	usbvision->num_alt=uif->num_altsetting;
	PDEBUG(DBG_PROBE, "Alternate settings: %i",usbvision->num_alt);
	usbvision->alt_max_pkt_size = kmalloc(32*
					      usbvision->num_alt,GFP_KERNEL);
	if (usbvision->alt_max_pkt_size == NULL) {
		err("usbvision: out of memory!\n");
1811
		mutex_unlock(&usbvision->lock);
1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824
		return -ENOMEM;
	}

	for (i = 0; i < usbvision->num_alt ; i++) {
		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
				      wMaxPacketSize);
		usbvision->alt_max_pkt_size[i] =
			(tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
		PDEBUG(DBG_PROBE, "Alternate setting %i, max size= %i",i,
		       usbvision->alt_max_pkt_size[i]);
	}


1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836
	usbvision->nr = usbvision_nr++;

	usbvision->have_tuner = usbvision_device_data[model].Tuner;
	if (usbvision->have_tuner) {
		usbvision->tuner_type = usbvision_device_data[model].TunerType;
	}

	usbvision->tuner_addr = ADDR_UNSET;

	usbvision->DevModel = model;
	usbvision->remove_pending = 0;
	usbvision->iface = ifnum;
1837
	usbvision->ifaceAlt = 0;
1838 1839 1840 1841 1842 1843 1844
	usbvision->video_endp = endpoint->bEndpointAddress;
	usbvision->isocPacketSize = 0;
	usbvision->usb_bandwidth = 0;
	usbvision->user = 0;
	usbvision->streaming = Stream_Off;
	usbvision_register_video(usbvision);
	usbvision_configure_video(usbvision);
1845
	mutex_unlock(&usbvision->lock);
1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875


	usb_set_intfdata (intf, usbvision);
	usbvision_create_sysfs(usbvision->vdev);

	PDEBUG(DBG_PROBE, "success");
	return 0;
}


/*
 * usbvision_disconnect()
 *
 * This procedure stops all driver activity, deallocates interface-private
 * structure (pointed by 'ptr') and after that driver should be removable
 * with no ill consequences.
 *
 */
static void __devexit usbvision_disconnect(struct usb_interface *intf)
{
	struct usb_usbvision *usbvision = usb_get_intfdata(intf);

	PDEBUG(DBG_PROBE, "");

	if (usbvision == NULL) {
		err("%s: usb_get_intfdata() failed", __FUNCTION__);
		return;
	}
	usb_set_intfdata (intf, NULL);

1876
	mutex_lock(&usbvision->lock);
1877 1878 1879 1880 1881

	// At this time we ask to cancel outstanding URBs
	usbvision_stop_isoc(usbvision);

	if (usbvision->power) {
1882
		usbvision_i2c_unregister(usbvision);
1883 1884 1885 1886 1887 1888 1889
		usbvision_power_off(usbvision);
	}
	usbvision->remove_pending = 1;	// Now all ISO data will be ignored

	usb_put_dev(usbvision->dev);
	usbvision->dev = NULL;	// USB device is no more

1890
	mutex_unlock(&usbvision->lock);
1891 1892

	if (usbvision->user) {
1893 1894
		printk(KERN_INFO "%s: In use, disconnect pending\n",
		       __FUNCTION__);
1895 1896
		wake_up_interruptible(&usbvision->wait_frame);
		wake_up_interruptible(&usbvision->wait_stream);
1897
	} else {
1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925
		usbvision_release(usbvision);
	}

	PDEBUG(DBG_PROBE, "success");

}

static struct usb_driver usbvision_driver = {
	.name		= "usbvision",
	.id_table	= usbvision_table,
	.probe		= usbvision_probe,
	.disconnect	= usbvision_disconnect
};

/*
 * usbvision_init()
 *
 * This code is run to initialize the driver.
 *
 */
static int __init usbvision_init(void)
{
	int errCode;

	PDEBUG(DBG_PROBE, "");

	PDEBUG(DBG_IO,  "IO      debugging is enabled [video]");
	PDEBUG(DBG_PROBE, "PROBE   debugging is enabled [video]");
1926
	PDEBUG(DBG_MMAP, "MMAP    debugging is enabled [video]");
1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937

	/* disable planar mode support unless compression enabled */
	if (isocMode != ISOC_MODE_COMPRESS ) {
		// FIXME : not the right way to set supported flag
		usbvision_v4l2_format[6].supported = 0; // V4L2_PIX_FMT_YVU420
		usbvision_v4l2_format[7].supported = 0; // V4L2_PIX_FMT_YUV422P
	}

	errCode = usb_register(&usbvision_driver);

	if (errCode == 0) {
1938
		printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961
		PDEBUG(DBG_PROBE, "success");
	}
	return errCode;
}

static void __exit usbvision_exit(void)
{
 PDEBUG(DBG_PROBE, "");

 usb_deregister(&usbvision_driver);
 PDEBUG(DBG_PROBE, "success");
}

module_init(usbvision_init);
module_exit(usbvision_exit);

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-basic-offset: 8
 * End:
 */