usb_ctl.h

linux2.4.20下的针对三星公司的s3c2410的usb模块驱动代码

/*
 *  Copyright (C) Compaq Computer Corporation, 1998, 1999
 *  Copyright (C) Extenex Corporation 2001
 *  Copyright (C) Intrinsyc, Inc., 2002
 *
 */

#ifndef _USB_CTL_H
#define _USB_CTL_H

enum { 
	USB_STATE_NOTATTACHED	=0,
	USB_STATE_ATTACHED	=1,
	USB_STATE_POWERED	=2,
	USB_STATE_DEFAULT	=3,
	USB_STATE_ADDRESS	=4,
	USB_STATE_CONFIGURED	=5,
	USB_STATE_SUSPENDED	=6
};

struct usb_stats_t {
	 unsigned long ep0_fifo_write_failures;
	 unsigned long ep0_bytes_written;
	 unsigned long ep0_fifo_read_failures;
	 unsigned long ep0_bytes_read;
};

struct usb_info_t
{
	 char * client_name;
	 dmach_t dmach_tx, dmach_rx;
	 int state;
	 unsigned char address;
	 struct usb_stats_t stats;
};

/* in usb_ctl.c */
extern struct usb_info_t usbd_info;

/*
 * Function Prototypes
 */
enum { 
	kError		=-1,
	kEvSuspend	=0,
	kEvReset	=1,
	kEvResume	=2,
	kEvAddress	=3,
	kEvConfig	=4,
	kEvDeConfig	=5 
};
int usbctl_next_state_on_event( int event );

/* endpoint zero */
extern unsigned int ep0_state;
void ep0_reset(void);
void ep0_int_hndlr(void);
#define EP0_STATE_IDLE		 0
#define EP0_STATE_TRANSFER	 1
#define EP0_STATE_RECEIVER	 2

/* receiver */
void ep_bulk_out1_state_change_notify( int new_state );
int  ep_bulk_out1_recv(void);
int  ep_bulk_out1_init(int chn);
void ep_bulk_out1_int_hndlr(int status);
void ep_bulk_out1_reset(void);
void ep_bulk_out1_stall(void);

/* xmitter */
void ep_bulk_in1_state_change_notify( int new_state );
void ep_bulk_in1_reset(void);
int  ep_bulk_in1_init(int chn);
void ep_bulk_in1_int_hndlr(int status);
void ep_bulk_in1_stall(void);

#endif /* _USB_CTL_H */