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/*
 * (C) Copyright 2001
 * Denis Peter, MPL AG Switzerland
 *
 * See file CREDITS for list of people who contributed to this
 * 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., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 * Note: Part of this code has been derived from linux
 *
 */
#ifndef _USB_H_
#define _USB_H_

#include <usb_defs.h>

/* Everything is aribtrary */
#define USB_ALTSETTINGALLOC		4
#define USB_MAXALTSETTING		128	/* Hard limit */

#define USB_MAX_DEVICE			32
#define USB_MAXCONFIG			8
#define USB_MAXINTERFACES		8
#define USB_MAXENDPOINTS		16
#define USB_MAXCHILDREN			8	/* This is arbitrary */
#define USB_MAX_HUB			16

#define USB_CNTL_TIMEOUT 100 /* 100ms timeout */

/* String descriptor */
struct usb_string_descriptor {
	unsigned char	bLength;
	unsigned char	bDescriptorType;
	unsigned short	wData[1];
} __attribute__ ((packed));

/* device request (setup) */
struct devrequest {
	unsigned char	requesttype;
	unsigned char	request;
	unsigned short	value;
	unsigned short	index;
	unsigned short	length;
} __attribute__ ((packed));

/* All standard descriptors have these 2 fields in common */
struct usb_descriptor_header {
	unsigned char	bLength;
	unsigned char	bDescriptorType;
} __attribute__ ((packed));

/* Device descriptor */
struct usb_device_descriptor {
	unsigned char	bLength;
	unsigned char	bDescriptorType;
	unsigned short	bcdUSB;
	unsigned char	bDeviceClass;
	unsigned char	bDeviceSubClass;
	unsigned char	bDeviceProtocol;
	unsigned char	bMaxPacketSize0;
	unsigned short	idVendor;
	unsigned short	idProduct;
	unsigned short	bcdDevice;
	unsigned char	iManufacturer;
	unsigned char	iProduct;
	unsigned char	iSerialNumber;
	unsigned char	bNumConfigurations;
} __attribute__ ((packed));

/* Endpoint descriptor */
struct usb_endpoint_descriptor {
	unsigned char	bLength;
	unsigned char	bDescriptorType;
	unsigned char	bEndpointAddress;
	unsigned char	bmAttributes;
	unsigned short	wMaxPacketSize;
	unsigned char	bInterval;
	unsigned char	bRefresh;
	unsigned char	bSynchAddress;
} __attribute__ ((packed)) __attribute__ ((aligned(2)));

/* Interface descriptor */
struct usb_interface_descriptor {
	unsigned char	bLength;
	unsigned char	bDescriptorType;
	unsigned char	bInterfaceNumber;
	unsigned char	bAlternateSetting;
	unsigned char	bNumEndpoints;
	unsigned char	bInterfaceClass;
	unsigned char	bInterfaceSubClass;
	unsigned char	bInterfaceProtocol;
	unsigned char	iInterface;

	unsigned char	no_of_ep;
	unsigned char	num_altsetting;
	unsigned char	act_altsetting;

	struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS];
} __attribute__ ((packed));


/* Configuration descriptor information.. */
struct usb_config_descriptor {
	unsigned char	bLength;
	unsigned char	bDescriptorType;
	unsigned short	wTotalLength;
	unsigned char	bNumInterfaces;
	unsigned char	bConfigurationValue;
	unsigned char	iConfiguration;
	unsigned char	bmAttributes;
	unsigned char	MaxPower;

	unsigned char	no_of_if;	/* number of interfaces */
	struct usb_interface_descriptor if_desc[USB_MAXINTERFACES];
} __attribute__ ((packed));

enum {
	/* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */
	PACKET_SIZE_8   = 0,
	PACKET_SIZE_16  = 1,
	PACKET_SIZE_32  = 2,
	PACKET_SIZE_64  = 3,
};

struct usb_device {
	int	devnum;			/* Device number on USB bus */
	int	speed;			/* full/low/high */
	char	mf[32];			/* manufacturer */
	char	prod[32];		/* product */
	char	serial[32];		/* serial number */

	/* Maximum packet size; one of: PACKET_SIZE_* */
	int maxpacketsize;
	/* one bit for each endpoint ([0] = IN, [1] = OUT) */
	unsigned int toggle[2];
	/* endpoint halts; one bit per endpoint # & direction;
	 * [0] = IN, [1] = OUT
	 */
	unsigned int halted[2];
	int epmaxpacketin[16];		/* INput endpoint specific maximums */
	int epmaxpacketout[16];		/* OUTput endpoint specific maximums */

	int configno;			/* selected config number */
	struct usb_device_descriptor descriptor; /* Device Descriptor */