lib_udp.h

ARM9200开发板的ROM boot程序源码1.0

//*----------------------------------------------------------------------------
//*      ATMEL Microcontroller Software Support  -  ROUSSET  -
//*----------------------------------------------------------------------------
//* The software is delivered "AS IS" without warranty or condition of any
//* kind, either express, implied or statutory. This includes without
//* limitation any warranty or condition with respect to merchantability or
//* fitness for any particular purpose, or against the infringements of
//* intellectual property rights of others.
//*----------------------------------------------------------------------------
//* File Name           : lib_udp.h
//* Object              : Low level UDP access functions
//*
//* 1.0 Sept 3rd 01     : ODi Creation
//*----------------------------------------------------------------------------
#ifndef lib_udp_h
#define lib_udp_h

#include    "periph/udp/udp.h"


// Following functions are declared in lib_udp.c
extern void AT91F_UdpReset(
	AT91PS_UDP usb_pt);
extern void AT91F_UdpOpen(
	AT91PS_UDP usb_pt);
extern void AT91F_UdpSetAddress  (
	AT91PS_UDP usb_pt,
	unsigned int address);
extern char *AT91F_UdpEpRead(
	AT91PS_UDP pUdp,
	char  epNumber,
	char  *pBuffer,
	int   nbBytes);
extern char const *AT91F_UdpEpWrite(
	AT91PS_UDP pUdp,
	char       epNumber,
	char const *pBuffer,
	int        nbBytes);

// Following functions are declared inline to speed up
// the access to the UDP ressources

__inline void AT91F_UdpSetState(
	AT91PS_UDP pUdp,
	unsigned int state)
{
	pUdp->UDP_GLB_STATE = state;
}

__inline unsigned int AT91F_UdpGetState(
	AT91PS_UDP pUdp)
{
	return (pUdp->UDP_GLB_STATE & 0x0F);
}

/* Protocol Interrupt enable/disable functions */
__inline unsigned int AT91F_UdpUisr(
	AT91PS_UDP pUdp)
{
	return pUdp->UDP_UISR;
}

__inline unsigned int AT91F_UdpUimr(
	AT91PS_UDP pUdp)
{
	return pUdp->UDP_UIMR;
}

__inline void AT91F_UdpUicr(
	AT91PS_UDP pUdp,
	unsigned int its)
{
	pUdp->UDP_UICR = its;
}

__inline void AT91F_UdpUier(
	AT91PS_UDP pUdp,
	unsigned int its)
{
	pUdp->UDP_UIER = its;
}

__inline void AT91F_UdpUidr(
	AT91PS_UDP pUdp,
	unsigned int its)
{
	pUdp->UDP_UIDR = its;
}

/* Endpoint Interrupt enable/disable functions */
__inline unsigned int AT91F_UdpEpUisr(
	AT91PS_UDP pUdp,
	char epIdx)
{
	return ( pUdp->UDP_CSR[epIdx] & (
		UDP_RCV_DATA_BANK1 | UDP_STALLSENT |
		UDP_RXSETUP | UDP_RCV_DATA_BANK0 | UDP_TXCOMPLETE));
}

__inline void AT91F_UdpEpUicr(
	AT91PS_UDP pUdp,
	char epIdx,
	unsigned int flags)
{
	pUdp->UDP_CSR[epIdx] &= ~(flags);
}

__inline char AT91F_UdpEpRok(
	AT91PS_UDP pUdp,
	char epIdx)
{
	register unsigned int csr = pUdp->UDP_CSR[epIdx];

	if (csr & UDP_RCV_DATA_BANK0)
		return UDP_RCV_DATA_BANK0;
	else if (csr & UDP_RCV_DATA_BANK1)
		return UDP_RCV_DATA_BANK1;
	return 0;
}

__inline char AT91F_UdpEpWok(
	AT91PS_UDP pUdp,
	char epIdx)
{
	return !(pUdp->UDP_CSR[epIdx] & (UDP_TXPKREADY));
}

__inline void AT91F_UdpEpStall(
	AT91PS_UDP pUdp,
	char epIdx)
{
	pUdp->UDP_CSR[epIdx] = (UDP_FORCESTALL);
}

__inline void AT91F_UdpEpEor(
	AT91PS_UDP pUdp,
	char epIdx,
	u_int  bank)
{
	pUdp->UDP_CSR[epIdx] &= ~bank;
}

__inline void AT91F_UdpEpEow(
	AT91PS_UDP pUdp,
	char epIdx)
{
	pUdp->UDP_CSR[epIdx] |= UDP_TXPKREADY;
}

__inline unsigned int AT91F_UdpEpNbBytesRcv (
	const AT91PS_UDP pUdp,
	char epIdx)
{
	return UDP_BYTE_COUNT(pUdp->UDP_CSR[epIdx]);
}

__inline void AT91F_UdpEpCtrlRead (
	AT91PS_UDP pUdp,
	char epIdx)
{
	pUdp->UDP_CSR[epIdx] |= UDP_DIR;
}

__inline void AT91F_UdpEpConfigure (
	AT91PS_UDP pUdp,
	char epIdx,
	unsigned int configuration)
{
	pUdp->UDP_CSR[epIdx] = configuration;
}

#endif // lib_udp_h