usb_ctl.h
上传用户:lgb322
上传日期:2013-02-24
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文件大小:3k
- /*
- * Copyright (C) Compaq Computer Corporation, 1998, 1999
- * Copyright (C) Extenex Corporation 2001
- *
- * usb_ctl.h
- *
- * PRIVATE interface used to share info among components of the SA-1100 USB
- * core: usb_ctl, usb_ep0, usb_recv and usb_send. Clients of the USB core
- * should use sa1100_usb.h.
- *
- */
- #ifndef _USB_CTL_H
- #define _USB_CTL_H
- #include <asm/dma.h> /* dmach_t */
- /*
- * These states correspond to those in the USB specification v1.0
- * in chapter 8, Device Framework.
- */
- 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 */
- void ep0_reset(void);
- void ep0_int_hndlr(void);
- /* receiver */
- void ep1_state_change_notify( int new_state );
- int ep1_recv(void);
- int ep1_init(int chn);
- void ep1_int_hndlr(int status);
- void ep1_reset(void);
- void ep1_stall(void);
- /* xmitter */
- void ep2_state_change_notify( int new_state );
- void ep2_reset(void);
- int ep2_init(int chn);
- void ep2_int_hndlr(int status);
- void ep2_stall(void);
- #define UDC_write(reg, val) {
- int i = 10000;
- do {
- (reg) = (val);
- if (i-- <= 0) {
- printk( "%s [%d]: write %#x to %p (%#x) failedn",
- __FUNCTION__, __LINE__, (val), &(reg), (reg));
- break;
- }
- } while((reg) != (val));
- }
- #define UDC_set(reg, val) {
- int i = 10000;
- do {
- (reg) |= (val);
- if (i-- <= 0) {
- printk( "%s [%d]: set %#x of %p (%#x) failedn",
- __FUNCTION__, __LINE__, (val), &(reg), (reg));
- break;
- }
- } while(!((reg) & (val)));
- }
- #define UDC_clear(reg, val) {
- int i = 10000;
- do {
- (reg) &= ~(val);
- if (i-- <= 0) {
- printk( "%s [%d]: clear %#x of %p (%#x) failedn",
- __FUNCTION__, __LINE__, (val), &(reg), (reg));
- break;
- }
- } while((reg) & (val));
- }
- #define UDC_flip(reg, val) {
- int i = 10000;
- (reg) = (val);
- do {
- (reg) = (val);
- if (i-- <= 0) {
- printk( "%s [%d]: flip %#x of %p (%#x) failedn",
- __FUNCTION__, __LINE__, (val), &(reg), (reg));
- break;
- }
- } while(((reg) & (val)));
- }
- #define CHECK_ADDRESS { if ( Ser0UDCAR == 1 ) { printk("%s:%d I lost my address!!!n",__FUNCTION__, __LINE__);}}
- #endif /* _USB_CTL_H */