wince_gbus.h

来自「Sigma SMP8634 Mrua v. 2.8.2.0」· C头文件 代码 · 共 78 行

#ifndef __WINCE_GBUS_H_
#define __WINCE_GBUS_H_

// windows CE implementation of gbus access

#include <windows.h>
#include <oal.h>

typedef unsigned long RMuint32;
/** 16 bits long integer */
typedef unsigned short RMuint16;
typedef unsigned char RMuint8;


struct gbus;
static RMuint32 gbus_read_uint32 (struct gbus *h, RMuint32 byte_address)
{
	volatile RMuint32 *p;
	if (byte_address & 0x20000000)
		byte_address -= 0x14000000;
	p = (RMuint32 *)OALPAtoUA(byte_address);
	return (RMuint32)(*p);
}

static void gbus_write_uint32 (struct gbus *h, RMuint32 byte_address, RMuint32 data)
{
	volatile RMuint32 *p;
	if (byte_address & 0x20000000)
		byte_address -= 0x14000000;
	p = (RMuint32 *)OALPAtoUA(byte_address);
	*p = data;
}

static RMuint16 gbus_read_uint16(struct gbus *h, RMuint32 byte_address)
{
	volatile RMuint16 *p;
	if (byte_address & 0x20000000)
		byte_address -= 0x14000000;
	p = (RMuint16 *)OALPAtoUA(byte_address);
	return  (RMuint16)(*p);
}

static void gbus_write_uint8 (struct gbus *h, RMuint32 byte_address, RMuint8 data)
{
	volatile RMuint8 *p;
	if (byte_address & 0x20000000)
		byte_address -= 0x14000000;
	p = (RMuint8 *)OALPAtoUA(byte_address);
	*((RMuint8*)p) = data;
}

static RMuint8 gbus_read_uint8 (struct gbus *h, RMuint32 byte_address)
{
	volatile RMuint8 *p;
	if (byte_address & 0x20000000)
		byte_address -= 0x14000000;
	p = (RMuint8 *)OALPAtoUA(byte_address);
	return  (RMuint8)(*p);
}

static void gbus_read_data8(struct gbus *h, RMuint32 byte_address, RMuint8 *pData, RMuint32 size)
{
	RMuint32 i;
	for(i=0; i < size; i++, byte_address++)
	{
		pData[i] = gbus_read_uint8(h, byte_address);
	}
}

static void gbus_write_data8(struct gbus *h, RMuint32 byte_address, const RMuint8 *pData, RMuint32 size)
{
	RMuint32 i;
	for(i=0; i < size; i++, byte_address++, pData++)
	{
		gbus_write_uint8(h, byte_address, *pData);
	}
}
#endif