mpui.c

以TI 公司的OMAP5910为例

//////////////////////////////////////////////////////////////////////////
//            Copyright (C) 2004, Eyoka @ Microunit
//                           All Rights Reserved
//________________________________________________________________________
//
// FILENAME:    mpui.c
// PROJECT:     High-Resolution Video System On OMAP
// MODULE:      MPU System
// DESCRIPTION: MPU Interface support
// TARGET CPU:  ARM-925T of OMAP5910
// VERSION:     0.2
//________________________________________________________________________
//
// REVISE HISTORY
// DATE         VERSION AUTHOR  DESCRIPTION
// 2004-11-08   0.2     Eyoka   Checked.
// 2004-11-01   0.1     Eyoka   Created.
//////////////////////////////////////////////////////////////////////////

#include "mpui.h"


/////////////////////////////////////////////////////////////////////
// MPUI FUNCTIONS
/////////////////////////////////////////////////////////////////////

//___________________________________________________________________
// Function: MPUI_Set_WSWAP
// Usage: Set WORD swap mode
// Parameters:
//	wordswap		enum type, can be:
//					WSWAP_NONE, WSWAP_NON_MPUI, WSWAP_ALL or WSWAP_MPUI
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_Set_WSWAP(MPUI_WSWAP_t wordswap)
{
	MPUI_CTRL_REG = (wordswap<<21) | (MPUI_CTRL_REG&0xFF9FFFFF);
}

//___________________________________________________________________
// Function: MPUI_Set_AP
// Usage: Set access priority
// Parameters:
//	ap				enum type, can be:
//					ARM_DMA(ARM priorier) or DMA_ARM(DMA priorier)
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_Set_AP(MPUI_AP_t ap)
{
	MPUI_CTRL_REG = (ap<<18) | (MPUI_CTRL_REG&0xFFE3FFFF);
}

//___________________________________________________________________
// Function: MPUI_Set_BSWAP
// Usage: Set BYTE swap mode
// Parameters:
//	byteswap		enum type, can be:
//					BSWAP_NONE, BSWAP_NON_MPUI, BSWAP_ALL or BSWAP_MPUI
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_Set_BSWAP(MPUI_BSWAP_t byteswap)
{
	MPUI_CTRL_REG = (byteswap<<16) | (MPUI_CTRL_REG&0xFFFCFFFF);
}

//___________________________________________________________________
// Function: MPUI_Set_Timeout
// Usage: Set MPUI Timeout
// Parameters:
//	timeout			0<=timeout<=255
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_Set_Timeout(int timeout)
{
	MPUI_CTRL_REG = (timeout<<8) | (MPUI_CTRL_REG&0xFFFF00FF);
}

//___________________________________________________________________
// Function: MPUI_Set_Div
// Usage: Set Divider
// Parameters:
//	factor			2<=factor<=15
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_Set_Div(int factor)
{
	MPUI_CTRL_REG = (factor<<4) | (MPUI_CTRL_REG&0xFFFFFF0F);
}

//___________________________________________________________________
// Function: MPUI_EnableABORT
// Usage: Enable/Disable the ABORT interrupt of MPUI
// Parameters:
//	bEnable			TRUE to Enable, FALSE to Disable.
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_EnableABORT(BOOL bEnable)
{
	MPUI_CTRL_REG = (bEnable<<3) | (MPUI_CTRL_REG&0xFFFFFFF7);
}

//___________________________________________________________________
// Function: MPUI_EnableTimeout
// Usage: Enable/Disable the Timeout interrupt of MPUI
// Parameters:
//	bEnable			TRUE to Enable, FALSE to Disable.
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_EnableTimeout(BOOL bEnable)
{
	MPUI_CTRL_REG = (bEnable<<1) | (MPUI_CTRL_REG&0xFFFFFFFD);
}

//___________________________________________________________________
// Function: MPUI_SetFrequency
// Usage: Set frequency mode of MPUI
// Parameters:
//	freqmode		can be HIGH_FREQ or LOW_FREQ
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_SetFrequency(MPUI_FREQ_t freqmode)
{
	MPUI_CTRL_REG = freqmode | (MPUI_CTRL_REG&0xFFFFFFFE);
}

//___________________________________________________________________
// Function: MPUI_SetDSPBootMode
// Usage: Set DSP boot mode
// Parameters:
//	mode			enum type, can be:
//					DSPBOOT_MPNMC, start from 0xFFFF00
//					DSPBOOT_PSEUDOEXT,
//					DSPBOOT_EMIF16, 16-bit boot download
//					DSPBOOT_EXTERNAL, 32-bit boot download
//					DSPBOOT_INTERNAL, MPUI boot download
// Return Values:	N/A
//___________________________________________________________________
//
void MPUI_SetDSPBootMode(MPUI_DSPBOOTMODE_t mode)
{
	MPUI_DSP_BOOT_CONFIG = mode;
}



// the end
/////////////////////////////////////////////////////////////////////