218 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			218 lines
		
	
	
		
			6.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef MINIX_USB_CH9_H
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#define MINIX_USB_CH9_H
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/*
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 * Copyright (c) 1998 The NetBSD Foundation, Inc.
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 * All rights reserved.
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 *
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 * This code is derived from software contributed to The NetBSD Foundation
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 * by Lennart Augustsson (lennart@augustsson.net) at
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 * Carlstedt Research & Technology.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *        This product includes software developed by the NetBSD
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 *        Foundation, Inc. and its contributors.
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 * 4. Neither the name of The NetBSD Foundation nor the names of its
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 *    contributors may be used to endorse or promote products derived
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 *    from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 */
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/* USB DESCRIPTORS */
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/*
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 * The USB records contain some unaligned little-endian word
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 * components.  The U[SG]ETW macros take care of both the alignment
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 * and endian problem and should always be used to access non-byte
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 * values.
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 */
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#include <sys/types.h>
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typedef u8_t uByte;
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typedef u8_t uWord[2];
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typedef u8_t uDWord[4];
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#define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
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#if 1
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#define UGETW(w) ((w)[0] | ((w)[1] << 8))
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#define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8))
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#define UGETDW(w) ((w)[0] | ((w)[1] << 8) | ((w)[2] << 16) | ((w)[3] << 24))
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#define USETDW(w,v) ((w)[0] = (u_int8_t)(v), \
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		     (w)[1] = (u_int8_t)((v) >> 8), \
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		     (w)[2] = (u_int8_t)((v) >> 16), \
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		     (w)[3] = (u_int8_t)((v) >> 24))
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#else
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/*
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 * On little-endian machines that can handle unanliged accesses
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 * (e.g. i386) these macros can be replaced by the following.
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 */
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#define UGETW(w) (*(u_int16_t *)(w))
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#define USETW(w,v) (*(u_int16_t *)(w) = (v))
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#define UGETDW(w) (*(u_int32_t *)(w))
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#define USETDW(w,v) (*(u_int32_t *)(w) = (v))
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#endif
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#define UPACKED __attribute__((__packed__))
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/* Requests */
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#define	UR_GET_STATUS		0x00
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#define	UR_CLEAR_FEATURE	0x01
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#define	UR_SET_FEATURE		0x03
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#define	UR_SET_ADDRESS		0x05
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#define	UR_GET_DESCRIPTOR	0x06
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#define	UDESC_DEVICE		0x01
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#define	UDESC_CONFIG		0x02
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#define	UDESC_STRING		0x03
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#define	USB_LANGUAGE_TABLE	0x00	/* language ID string index */
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#define	UDESC_INTERFACE		0x04
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#define	UDESC_ENDPOINT		0x05
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#define	UDESC_DEVICE_QUALIFIER	0x06
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#define	UDESC_OTHER_SPEED_CONFIGURATION 0x07
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#define	UDESC_INTERFACE_POWER	0x08
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#define	UDESC_OTG		0x09
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#define	UDESC_DEBUG		0x0A
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#define	UDESC_IFACE_ASSOC	0x0B	/* interface association */
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#define	UDESC_BOS		0x0F	/* binary object store */
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#define	UDESC_DEVICE_CAPABILITY	0x10
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#define	UDESC_CS_DEVICE		0x21	/* class specific */
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#define	UDESC_CS_CONFIG		0x22
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#define	UDESC_CS_STRING		0x23
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#define	UDESC_CS_INTERFACE	0x24
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#define	UDESC_CS_ENDPOINT	0x25
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#define	UDESC_HUB		0x29
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#define	UDESC_ENDPOINT_SS_COMP	0x30	/* super speed */
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#define	UR_SET_DESCRIPTOR	0x07
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#define	UR_GET_CONFIG		0x08
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#define	UR_SET_CONFIG		0x09
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#define	UR_GET_INTERFACE	0x0a
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#define	UR_SET_INTERFACE	0x0b
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#define	UR_SYNCH_FRAME		0x0c
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#define	UR_SET_SEL		0x30
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#define	UR_ISOCH_DELAY		0x31
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typedef struct {
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	uByte		bLength;
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	uByte		bDescriptorType;
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	uByte		bDescriptorSubtype;
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} UPACKED usb_descriptor_t;
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typedef struct {
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	uByte		bLength;
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	uByte		bDescriptorType;
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	uWord		bcdUSB;
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#define UD_USB_2_0		0x0200
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#define UD_IS_USB2(d) (UGETW((d)->bcdUSB) >= UD_USB_2_0)
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	uByte		bDeviceClass;
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	uByte		bDeviceSubClass;
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	uByte		bDeviceProtocol;
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	uByte		bMaxPacketSize;
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	/* The fields below are not part of the initial descriptor. */
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	uWord		idVendor;
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	uWord		idProduct;
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	uWord		bcdDevice;
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	uByte		iManufacturer;
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	uByte		iProduct;
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	uByte		iSerialNumber;
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	uByte		bNumConfigurations;
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} UPACKED usb_device_descriptor_t;
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#define USB_DEVICE_DESCRIPTOR_SIZE 18
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typedef struct {
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	uByte		bLength;
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	uByte		bDescriptorType;
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	uWord		wTotalLength;
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	uByte		bNumInterface;
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	uByte		bConfigurationValue;
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	uByte		iConfiguration;
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	uByte		bmAttributes;
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#define UC_BUS_POWERED		0x80
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#define UC_SELF_POWERED		0x40
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#define UC_REMOTE_WAKEUP	0x20
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	uByte		bMaxPower; /* max current in 2 mA units */
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#define UC_POWER_FACTOR 2
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} UPACKED usb_config_descriptor_t;
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#define USB_CONFIG_DESCRIPTOR_SIZE 9
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typedef struct {
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	uByte		bLength;
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	uByte		bDescriptorType;
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	uByte		bInterfaceNumber;
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	uByte		bAlternateSetting;
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	uByte		bNumEndpoints;
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	uByte		bInterfaceClass;
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	uByte		bInterfaceSubClass;
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	uByte		bInterfaceProtocol;
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	uByte		iInterface;
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} UPACKED usb_interface_descriptor_t;
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#define USB_INTERFACE_DESCRIPTOR_SIZE 9
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typedef struct {
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	uByte		bLength;
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	uByte		bDescriptorType;
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	uByte		bEndpointAddress;
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#define UE_GET_DIR(a)	((a) & 0x80)
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#define UE_SET_DIR(a,d)	((a) | (((d)&1) << 7))
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#define UE_DIR_IN	0x80
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#define UE_DIR_OUT	0x00
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#define UE_ADDR		0x0f
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#define UE_GET_ADDR(a)	((a) & UE_ADDR)
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	uByte		bmAttributes;
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#define UE_XFERTYPE	0x03
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#define  UE_CONTROL	0x00
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#define  UE_ISOCHRONOUS	0x01
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#define  UE_BULK	0x02
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#define  UE_INTERRUPT	0x03
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#define UE_GET_XFERTYPE(a)	((a) & UE_XFERTYPE)
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#define UE_ISO_TYPE	0x0c
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#define  UE_ISO_ASYNC	0x04
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#define  UE_ISO_ADAPT	0x08
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#define  UE_ISO_SYNC	0x0c
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#define UE_GET_ISO_TYPE(a)	((a) & UE_ISO_TYPE)
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	uWord		wMaxPacketSize;
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	uByte		bInterval;
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} UPACKED usb_endpoint_descriptor_t;
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#define USB_ENDPOINT_DESCRIPTOR_SIZE 7
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typedef struct {
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	uByte		bLength;
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	uByte		bDescriptorType;
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	uWord		bString[127];
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} UPACKED usb_string_descriptor_t;
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#define USB_MAX_STRING_LEN 128
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#define USB_MAX_ENCODED_STRING_LEN (USB_MAX_STRING_LEN * 3) /* UTF8 */
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struct usb_device_request {
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	uByte	bmRequestType;
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	uByte	bRequest;
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	uWord	wValue;
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	uWord	wIndex;
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	uWord	wLength;
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} UPACKED;
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typedef struct usb_device_request usb_device_request_t;
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#endif
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