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")

static inline struct usb_usbvision *cd_to_usbvision(struct class_device *cd)
{
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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);
}

static ssize_t show_version(struct class_device *cd, char *buf)
{
	return sprintf(buf, "%s\n", USBVISION_VERSION_STRING);
}
static CLASS_DEVICE_ATTR(version, S_IRUGO, show_version, NULL);

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static ssize_t show_model(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL);

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static ssize_t show_hue(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);

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static ssize_t show_contrast(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);

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static ssize_t show_brightness(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);

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static ssize_t show_saturation(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);

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static ssize_t show_streaming(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(streaming, S_IRUGO, show_streaming, NULL);

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static ssize_t show_compression(struct class_device *cd, 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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}
static CLASS_DEVICE_ATTR(compression, S_IRUGO, show_compression, NULL);

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static ssize_t show_device_bridge(struct class_device *cd, 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);
}
static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_device_bridge, NULL);

static void usbvision_create_sysfs(struct video_device *vdev)
{
	int res;
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	if (!vdev)
		return;
	do {
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_version);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_model);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_hue);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_contrast);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_brightness);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_saturation);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_streaming);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_compression);
		if (res<0)
			break;
		res=class_device_create_file(&vdev->class_dev,
					     &class_device_attr_bridge);
		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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		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_version);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_model);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_hue);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_contrast);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_brightness);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_saturation);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_streaming);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_attr_compression);
		class_device_remove_file(&vdev->class_dev,
					 &class_device_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) {
		down(&usbvision->lock);
		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;
			}
		}
		up(&usbvision->lock);
	}

	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");
	down(&usbvision->lock);

	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;
	}

	up(&usbvision->lock);

	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");
610
		}
611 612 613 614 615 616 617 618 619 620
		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;
}
621

622 623 624 625 626
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);
627

628 629 630
	*input = usbvision->ctl_input;
	return 0;
}
631

632 633 634 635 636
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);
637

638 639
	if ((input >= usbvision->video_inputs) || (input < 0) )
		return -EINVAL;
640

641
	down(&usbvision->lock);
642
	usbvision_muxsel(usbvision, input);
643 644 645 646 647 648 649
	usbvision_set_input(usbvision);
	usbvision_set_output(usbvision,
			     usbvision->curwidth,
			     usbvision->curheight);
	up(&usbvision->lock);
	return 0;
}
650

651 652 653 654 655 656
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;
657

658 659 660 661
	down(&usbvision->lock);
	call_i2c_clients(usbvision, VIDIOC_S_STD,
			 &usbvision->tvnormId);
	up(&usbvision->lock);
662 663
	/* propagate the change to the decoder */
	usbvision_muxsel(usbvision, usbvision->ctl_input);
664

665 666
	return 0;
}
667

668 669 670 671 672 673
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);
674

675 676 677 678 679 680 681 682 683 684
	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);
685

686 687
	return 0;
}
688

689 690 691 692 693 694
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);
695

696 697 698 699 700
	// 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);
701

702 703
	return 0;
}
704

705 706 707 708 709 710
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);
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712 713 714 715 716 717 718
	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;
719

720 721
	return 0;
}
722

723 724 725 726 727 728
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);
729

730 731 732
	// Only no or one tuner for now
	if (!usbvision->have_tuner || freq->tuner)
		return -EINVAL;
733

734 735
	usbvision->freq = freq->frequency;
	call_i2c_clients(usbvision, VIDIOC_S_FREQUENCY, freq);
736

737 738
	return 0;
}
739

740 741 742 743 744
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);
745

746 747 748 749 750 751
	memset(a,0,sizeof(*a));
	if(usbvision->radio) {
		strcpy(a->name,"Radio");
	} else {
		strcpy(a->name, "TV");
	}
752

753 754
	return 0;
}
755

756 757 758 759 760 761
static int vidioc_s_audio (struct file *file, void *fh,
			  struct v4l2_audio *a)
{
	if(a->index) {
		return -EINVAL;
	}
762

763 764
	return 0;
}
765

766 767 768 769 770 771 772
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;
773

774 775
	memset(ctrl,0,sizeof(*ctrl));
	ctrl->id=id;
776

777
	call_i2c_clients(usbvision, VIDIOC_QUERYCTRL, ctrl);
778

779 780
	if (!ctrl->type)
		return -EINVAL;
781

782 783
	return 0;
}
784

785 786 787 788 789 790 791
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);
792

793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
	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;
826
	}
827 828 829 830 831 832 833

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

	usbvision->curFrame = NULL;

834 835 836
	return 0;
}

837 838
static int vidioc_querybuf (struct file *file,
			    void *priv, struct v4l2_buffer *vb)
839
{
840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873
	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;
874 875
}

876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 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
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... */
	down(&usbvision->lock);
	usbvision_set_output(usbvision, vf->fmt.pix.width, vf->fmt.pix.height);
	up(&usbvision->lock);

	return 0;
}
1083

A
Al Viro 已提交
1084
static ssize_t usbvision_v4l2_read(struct file *file, char __user *buf,
1085 1086 1087
		      size_t count, loff_t *ppos)
{
	struct video_device *dev = video_devdata(file);
1088 1089
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1090 1091 1092 1093 1094 1095
	int noblock = file->f_flags & O_NONBLOCK;
	unsigned long lock_flags;

	int ret,i;
	struct usbvision_frame *frame;

1096 1097
	PDEBUG(DBG_IO, "%s: %ld bytes, noblock=%d", __FUNCTION__,
	       (unsigned long)count, noblock);
1098 1099 1100 1101

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

1102 1103 1104
	/* 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. */
1105
	if(!usbvision->num_frames) {
1106 1107
		/* First, allocate some frames to work with
		   if this has not been done with VIDIOC_REQBUF */
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117
		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);
	}
1118

1119 1120
	/* Then, enqueue as many frames as possible
	   (like a user of VIDIOC_QBUF would do) */
1121
	for(i=0;i<usbvision->num_frames;i++) {
1122 1123 1124 1125 1126
		frame = &usbvision->frame[i];
		if(frame->grabstate == FrameState_Unused) {
			/* Mark it as ready and enqueue frame */
			frame->grabstate = FrameState_Ready;
			frame->scanstate = ScanState_Scanning;
1127 1128
			/* Accumulated in usbvision_parse_data() */
			frame->scanlength = 0;
1129 1130 1131 1132 1133 1134

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

			spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
			list_add_tail(&frame->frame, &usbvision->inqueue);
1135 1136
			spin_unlock_irqrestore(&usbvision->queue_lock,
					       lock_flags);
1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163
		}
	}

	/* 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;
	}

1164 1165 1166
	PDEBUG(DBG_IO, "%s: frmx=%d, bytes_read=%ld, scanlength=%ld",
	       __FUNCTION__,
	       frame->index, frame->bytes_read, frame->scanlength);
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176

	/* 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;
1177 1178 1179
	PDEBUG(DBG_IO, "%s: {copy} count used=%ld, new bytes_read=%ld",
	       __FUNCTION__,
	       (unsigned long)count, frame->bytes_read);
1180

1181
	/* For now, forget the frame if it has not been read in one shot. */
1182 1183 1184 1185
/* 	if (frame->bytes_read >= frame->scanlength) {// All data has been read */
		frame->bytes_read = 0;

		/* Mark it as available to be used again. */
1186
		frame->grabstate = FrameState_Unused;
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199
/* 	} */

	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);
1200 1201
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1202

1203 1204
	PDEBUG(DBG_MMAP, "mmap");

1205 1206 1207 1208 1209 1210 1211 1212
	down(&usbvision->lock);

	if (!USBVISION_IS_OPERATIONAL(usbvision)) {
		up(&usbvision->lock);
		return -EFAULT;
	}

	if (!(vma->vm_flags & VM_WRITE) ||
1213
	    size != PAGE_ALIGN(usbvision->max_frame_size)) {
1214 1215 1216 1217
		up(&usbvision->lock);
		return -EINVAL;
	}

1218
	for (i = 0; i < usbvision->num_frames; i++) {
1219 1220
		if (((PAGE_ALIGN(usbvision->max_frame_size)*i) >> PAGE_SHIFT) ==
		    vma->vm_pgoff)
1221 1222
			break;
	}
1223
	if (i == usbvision->num_frames) {
1224 1225
		PDEBUG(DBG_MMAP,
		       "mmap: user supplied mapping address is out of range");
1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
		up(&usbvision->lock);
		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))) {
1238
			PDEBUG(DBG_MMAP, "mmap: vm_insert_page failed");
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258
			up(&usbvision->lock);
			return -EAGAIN;
		}
		start += PAGE_SIZE;
		pos += PAGE_SIZE;
		size -= PAGE_SIZE;
	}

	up(&usbvision->lock);
	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);
1259 1260
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275
	int errCode = 0;

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

	down(&usbvision->lock);

	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);
1276
				usbvision_i2c_register(usbvision);
1277 1278 1279
			}
		}

1280 1281 1282 1283 1284 1285 1286
		/* Alternate interface 1 is is the biggest frame size */
		errCode = usbvision_set_alternate(usbvision);
		if (errCode < 0) {
			usbvision->last_error = errCode;
			return -EBUSY;
		}

1287 1288 1289 1290 1291 1292 1293 1294 1295
		// 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) {
1296
			usbvision_i2c_unregister(usbvision);
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308
			usbvision_power_off(usbvision);
			usbvision->initialized = 0;
		}
	}
	up(&usbvision->lock);
	return errCode;
}


static int usbvision_radio_close(struct inode *inode, struct file *file)
{
	struct video_device *dev = video_devdata(file);
1309 1310
	struct usb_usbvision *usbvision =
		(struct usb_usbvision *) video_get_drvdata(dev);
1311 1312 1313 1314 1315 1316
	int errCode = 0;

	PDEBUG(DBG_IO, "");

	down(&usbvision->lock);

1317 1318 1319 1320 1321
	/* Set packet size to 0 */
	usbvision->ifaceAlt=0;
	errCode = usb_set_interface(usbvision->dev, usbvision->iface,
				    usbvision->ifaceAlt);

1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333
	usbvision_audio_off(usbvision);
	usbvision->radio=0;
	usbvision->user--;

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

	up(&usbvision->lock);

	if (usbvision->remove_pending) {
1334
		printk(KERN_INFO "%s: Final disconnect\n", __FUNCTION__);
1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
		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 */
1351
	return -ENODEV;
1352 1353 1354 1355 1356 1357

}

static int usbvision_vbi_close(struct inode *inode, struct file *file)
{
	/* TODO */
1358
	return -ENODEV;
1359 1360 1361 1362 1363 1364
}

static int usbvision_do_vbi_ioctl(struct inode *inode, struct file *file,
				 unsigned int cmd, void *arg)
{
	/* TODO */
1365
	return -ENOIOCTLCMD;
1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379
}

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
1380
static const struct file_operations usbvision_fops = {
1381 1382 1383 1384 1385
	.owner             = THIS_MODULE,
	.open		= usbvision_v4l2_open,
	.release	= usbvision_v4l2_close,
	.read		= usbvision_v4l2_read,
	.mmap		= usbvision_v4l2_mmap,
1386
	.ioctl		= video_ioctl2,
1387
	.llseek		= no_llseek,
1388 1389
/* 	.poll          = video_poll, */
	.compat_ioctl  = v4l_compat_ioctl32,
1390 1391 1392 1393 1394 1395 1396 1397 1398
};
static struct video_device usbvision_video_template = {
	.owner             = THIS_MODULE,
	.type		= VID_TYPE_TUNER | VID_TYPE_CAPTURE,
	.hardware	= VID_HARDWARE_USBVISION,
	.fops		= &usbvision_fops,
	.name           = "usbvision-video",
	.release	= video_device_release,
	.minor		= -1,
1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413
	.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,
1414
	.vidioc_s_audio       = vidioc_s_audio,
1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431
	.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
1432 1433 1434 1435
};


// Radio template
1436
static const struct file_operations usbvision_radio_fops = {
1437 1438 1439
	.owner             = THIS_MODULE,
	.open		= usbvision_radio_open,
	.release	= usbvision_radio_close,
1440
	.ioctl		= video_ioctl2,
1441
	.llseek		= no_llseek,
1442
	.compat_ioctl  = v4l_compat_ioctl32,
1443 1444 1445 1446 1447 1448 1449 1450 1451
};

static struct video_device usbvision_radio_template=
{
	.owner             = THIS_MODULE,
	.type		= VID_TYPE_TUNER,
	.hardware	= VID_HARDWARE_USBVISION,
	.fops		= &usbvision_radio_fops,
	.name           = "usbvision-radio",
1452
	.release	= video_device_release,
1453
	.minor		= -1,
1454 1455 1456 1457 1458 1459
	.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,
1460
	.vidioc_s_audio       = vidioc_s_audio,
1461 1462 1463 1464 1465 1466 1467 1468 1469
	.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
1470 1471 1472
};

// vbi template
1473
static const struct file_operations usbvision_vbi_fops = {
1474 1475 1476 1477 1478
	.owner             = THIS_MODULE,
	.open		= usbvision_vbi_open,
	.release	= usbvision_vbi_close,
	.ioctl		= usbvision_vbi_ioctl,
	.llseek		= no_llseek,
1479
	.compat_ioctl  = v4l_compat_ioctl32,
1480 1481 1482 1483 1484 1485 1486 1487 1488 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
};

static struct video_device usbvision_vbi_template=
{
	.owner             = THIS_MODULE,
	.type		= VID_TYPE_TUNER,
	.hardware	= VID_HARDWARE_USBVISION,
	.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) {
1523 1524
		PDEBUG(DBG_PROBE, "unregister /dev/vbi%d [v4l2]",
		       usbvision->vbi->minor & 0x1f);
1525 1526
		if (usbvision->vbi->minor != -1) {
			video_unregister_device(usbvision->vbi);
1527
		} else {
1528 1529 1530 1531 1532 1533 1534
			video_device_release(usbvision->vbi);
		}
		usbvision->vbi = NULL;
	}

	// Radio Device:
	if (usbvision->rdev) {
1535 1536
		PDEBUG(DBG_PROBE, "unregister /dev/radio%d [v4l2]",
		       usbvision->rdev->minor & 0x1f);
1537 1538
		if (usbvision->rdev->minor != -1) {
			video_unregister_device(usbvision->rdev);
1539
		} else {
1540 1541 1542 1543 1544 1545 1546
			video_device_release(usbvision->rdev);
		}
		usbvision->rdev = NULL;
	}

	// Video Device:
	if (usbvision->vdev) {
1547 1548
		PDEBUG(DBG_PROBE, "unregister /dev/video%d [v4l2]",
		       usbvision->vdev->minor & 0x1f);
1549 1550
		if (usbvision->vdev->minor != -1) {
			video_unregister_device(usbvision->vdev);
1551
		} else {
1552 1553 1554 1555 1556 1557 1558 1559 1560 1561
			video_device_release(usbvision->vdev);
		}
		usbvision->vdev = NULL;
	}
}

// register video4linux devices
static int __devinit usbvision_register_video(struct usb_usbvision *usbvision)
{
	// Video Device:
1562 1563 1564
	usbvision->vdev = usbvision_vdev_init(usbvision,
					      &usbvision_video_template,
					      "USBVision Video");
1565 1566 1567
	if (usbvision->vdev == NULL) {
		goto err_exit;
	}
1568 1569 1570
	if (video_register_device(usbvision->vdev,
				  VFL_TYPE_GRABBER,
				  video_nr)<0) {
1571 1572
		goto err_exit;
	}
1573 1574
	printk(KERN_INFO "USBVision[%d]: registered USBVision Video device /dev/video%d [v4l2]\n",
	       usbvision->nr,usbvision->vdev->minor & 0x1f);
1575 1576 1577 1578

	// Radio Device:
	if (usbvision_device_data[usbvision->DevModel].Radio) {
		// usbvision has radio
1579 1580 1581
		usbvision->rdev = usbvision_vdev_init(usbvision,
						      &usbvision_radio_template,
						      "USBVision Radio");
1582 1583 1584
		if (usbvision->rdev == NULL) {
			goto err_exit;
		}
1585 1586 1587
		if (video_register_device(usbvision->rdev,
					  VFL_TYPE_RADIO,
					  radio_nr)<0) {
1588 1589
			goto err_exit;
		}
1590 1591
		printk(KERN_INFO "USBVision[%d]: registered USBVision Radio device /dev/radio%d [v4l2]\n",
		       usbvision->nr, usbvision->rdev->minor & 0x1f);
1592 1593 1594
	}
	// vbi Device:
	if (usbvision_device_data[usbvision->DevModel].vbi) {
1595 1596 1597
		usbvision->vbi = usbvision_vdev_init(usbvision,
						     &usbvision_vbi_template,
						     "USBVision VBI");
1598 1599 1600
		if (usbvision->vdev == NULL) {
			goto err_exit;
		}
1601 1602 1603
		if (video_register_device(usbvision->vbi,
					  VFL_TYPE_VBI,
					  vbi_nr)<0) {
1604 1605
			goto err_exit;
		}
1606 1607
		printk(KERN_INFO "USBVision[%d]: registered USBVision VBI device /dev/vbi%d [v4l2] (Not Working Yet!)\n",
		       usbvision->nr,usbvision->vbi->minor & 0x1f);
1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620
	}
	// all done
	return 0;

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

/*
 * usbvision_alloc()
 *
1621 1622
 * This code allocates the struct usb_usbvision.
 * It is filled with default values.
1623 1624 1625 1626 1627 1628 1629 1630
 *
 * Returns NULL on error, a pointer to usb_usbvision else.
 *
 */
static struct usb_usbvision *usbvision_alloc(struct usb_device *dev)
{
	struct usb_usbvision *usbvision;

1631 1632
	if ((usbvision = kzalloc(sizeof(struct usb_usbvision), GFP_KERNEL)) ==
	    NULL) {
1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 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 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693
		goto err_exit;
	}

	usbvision->dev = dev;

	init_MUTEX(&usbvision->lock);	/* to 1 == available */

	// 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);
	init_MUTEX(&usbvision->ctrlUrbLock);	/* to 1 == available */

	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, "");

	down(&usbvision->lock);

	usbvision_reset_powerOffTimer(usbvision);

	usbvision->initialized = 0;

	up(&usbvision->lock);

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

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

	kfree(usbvision);

	PDEBUG(DBG_PROBE, "success");
}


1694
/*********************** usb interface **********************************/
1695 1696 1697

static void usbvision_configure_video(struct usb_usbvision *usbvision)
{
1698
	int model;
1699 1700 1701 1702 1703 1704 1705

	if (usbvision == NULL)
		return;

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

1706
	if (usbvision_device_data[usbvision->DevModel].Vin_Reg2_override) {
1707 1708
		usbvision->Vin_Reg2_Preset =
			usbvision_device_data[usbvision->DevModel].Vin_Reg2;
1709 1710 1711 1712
	} else {
		usbvision->Vin_Reg2_Preset = 0;
	}

1713
	usbvision->tvnormId = usbvision_device_data[model].VideoNorm;
1714 1715 1716 1717 1718

	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 */
1719 1720
	/* first switch off audio */
	usbvision_audio_off(usbvision);
1721
	if (!PowerOnAtOpen) {
1722 1723
		/* and then power up the noisy tuner */
		usbvision_power_on(usbvision);
1724
		usbvision_i2c_register(usbvision);
1725 1726 1727 1728 1729 1730 1731 1732 1733 1734
	}
}

/*
 * usbvision_probe()
 *
 * This procedure queries device descriptor and accepts the interface
 * if it looks like USBVISION video device
 *
 */
1735 1736
static int __devinit usbvision_probe(struct usb_interface *intf,
				     const struct usb_device_id *devid)
1737
{
1738 1739
	struct usb_device *dev = usb_get_dev(interface_to_usbdev(intf));
	struct usb_interface *uif;
1740 1741 1742 1743
	__u8 ifnum = intf->altsetting->desc.bInterfaceNumber;
	const struct usb_host_interface *interface;
	struct usb_usbvision *usbvision = NULL;
	const struct usb_endpoint_descriptor *endpoint;
1744
	int model,i;
1745 1746

	PDEBUG(DBG_PROBE, "VID=%#04x, PID=%#04x, ifnum=%u",
1747 1748
				dev->descriptor.idVendor,
				dev->descriptor.idProduct, ifnum);
1749

1750
	model = devid->driver_info;
1751
	if ( (model<0) || (model>=usbvision_device_data_size) ) {
1752
		PDEBUG(DBG_PROBE, "model out of bounds %d",model);
1753 1754
		return -ENODEV;
	}
1755 1756
	printk(KERN_INFO "%s: %s found\n", __FUNCTION__,
				usbvision_device_data[model].ModelString);
1757 1758 1759

	if (usbvision_device_data[model].Interface >= 0) {
		interface = &dev->actconfig->interface[usbvision_device_data[model].Interface]->altsetting[0];
1760
	} else {
1761 1762 1763
		interface = &dev->actconfig->interface[ifnum]->altsetting[0];
	}
	endpoint = &interface->endpoint[1].desc;
1764 1765 1766 1767 1768 1769
	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);
1770 1771
		return -ENODEV;
	}
1772 1773 1774 1775
	if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
	    USB_DIR_OUT) {
		err("%s: interface %d. has ISO OUT endpoint!",
		    __FUNCTION__, ifnum);
1776 1777 1778 1779 1780 1781 1782
		return -ENODEV;
	}

	if ((usbvision = usbvision_alloc(dev)) == NULL) {
		err("%s: couldn't allocate USBVision struct", __FUNCTION__);
		return -ENOMEM;
	}
1783

1784 1785
	if (dev->descriptor.bNumConfigurations > 1) {
		usbvision->bridgeType = BRIDGE_NT1004;
1786
	} else if (model == DAZZLE_DVC_90_REV_1_SECAM) {
1787
		usbvision->bridgeType = BRIDGE_NT1005;
1788
	} else {
1789 1790 1791 1792 1793 1794
		usbvision->bridgeType = BRIDGE_NT1003;
	}
	PDEBUG(DBG_PROBE, "bridgeType %d", usbvision->bridgeType);

	down(&usbvision->lock);

1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816
	/* 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");
		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]);
	}


1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828
	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;
1829
	usbvision->ifaceAlt = 0;
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 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
	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);
	up(&usbvision->lock);


	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);

	down(&usbvision->lock);

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

	if (usbvision->power) {
1874
		usbvision_i2c_unregister(usbvision);
1875 1876 1877 1878 1879 1880 1881 1882 1883 1884
		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

	up(&usbvision->lock);

	if (usbvision->user) {
1885 1886
		printk(KERN_INFO "%s: In use, disconnect pending\n",
		       __FUNCTION__);
1887 1888
		wake_up_interruptible(&usbvision->wait_frame);
		wake_up_interruptible(&usbvision->wait_stream);
1889
	} else {
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		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]");
1918
	PDEBUG(DBG_MMAP, "MMAP    debugging is enabled [video]");
1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929

	/* 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) {
1930
		printk(KERN_INFO DRIVER_DESC " : " USBVISION_VERSION_STRING "\n");
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		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:
 */