led.c

uboot底层驱动

/*************************************************************************************
*	Copyright (c) 2005 by National ASIC System Engineering Research Center.
*	PROPRIETARY RIGHTS of ASIC are involved in the subject matter of this 
*	material.  All manufacturing, reproduction, use, and sales rights 
*	pertaining to this subject matter are governed by the license agreement.
*	The recipient of this software implicitly accepts the terms of the license.
*
*	File Name: led.c
*
*	File Description:
*			The file consists of the function used to config uart
*
*	Function Description:
*			STATUS	ModuleLed(void);
*			void LedDisPlay(U8 data[]);
*			void GPIO_Init(void);
*			void Hex2Seg (U8 data[], U8 * p);
*			void LedOut(U8 data[], U32 times);
*			void LedUpdate(void);
*			void delay(int cycle);
*
*
*	Created by Wuer xiao
**************************************************************************************/

//#include "garfield.h"
#include "led.h"
#include "def.h"

U16 prochip[4] = {0xce40,0x6040,0x6e40,0x9c40};
U16	Num[10];
U16 LedNum[10];
U16	Numdot[10];
														// ê?·?ò?1??á·?ê???ê?￡o no define: 2?1??á

void init_Num()
{
	int i;
	
	Num[0] = sect2 + sect3 + sect4 + sect5 + sect6 + sect7;
	Num[1] = sect5 + sect6;
	Num[2] = sect7 + sect6 + sect1 + sect3 + sect4;
	Num[3] = sect7 + sect6 + sect1 + sect4 + sect5;
	Num[4] = sect2 + sect1 + sect5 + sect6;
	Num[5] = sect7 + sect2 + sect1 + sect4 + sect5;
	Num[6] = sect1 + sect2 + sect3 + sect4 + sect5 + sect7;
	Num[7] = sect5 + sect6 + sect7;
	Num[8] = sect1 + sect2 + sect3 + sect4 + sect5 + sect6 + sect7;
	Num[9] = sect7 + sect6 + sect5 + sect2 + sect1;
	
	for(i=0;i<10;i++)
	{
		LedNum[i] = (Num[i] << 8) + 0x00;
		Numdot[i] = LedNum[i] + (dot << 8);
	}
	/*
	LedNum[0] = (Num[0] << 8) + 0x00;
	LedNum[1] = (Num[1] << 8) + 0x00;
	LedNum[2] = (Num[2] << 8) + 0x00;
	LedNum[3] = (Num[3] << 8) + 0x00;
	LedNum[4] = (Num[4] << 8) + 0x00;
	LedNum[5] = (Num[5] << 8) + 0x00;
	LedNum[6] = (Num[6] << 8) + 0x00;
	LedNum[7] = (Num[7] << 8) + 0x00;
	LedNum[8] = (Num[8] << 8) + 0x00;
	LedNum[9] = (Num[9] << 8) + 0x00;
	*/
	
}

int	ModuleLed(void)
{
	/* GPIO initialized */
	Led_Init();
	init_Num();
	return E_OK;	
}


void Led_Init(void)
{
	*(RP)PORTG_SEL = 0xF7;							    // éè?¨GPIO?ú PD0/1/2 ?aí¨ó??ú
	*(RP)PORTG_DIR = 0x0;	                            // éè?¨GPIO?ú PD0/1/2 ?aêy?Yê?3?
	*(RP)PORTE_SEL = 0x03C0;							    
	*(RP)PORTE_DIR = 0x0;	
}

void sLedout(U16 data, unsigned char Bit_i)
{
	int Segment_i,i;
	U16 Segment_Data;
	U16 tempData;
	U32 portgdatatemp;
	portgdatatemp = (*(volatile unsigned long *)PORTG_DATA)&0x1f;
	
	Segment_Data = data;
	for (Segment_i = 0; Segment_i < 16; Segment_i++)		// ??7??ò????μòà′?′?DDê?è?μ?GPIO?ú?D
	{	
		tempData=(Segment_Data<<(15-Segment_i)) & 0x8000;		            // μ?μ?ò???·￠1a1üμ?ò????μ
		*(RP)PORTG_DATA = ((U8)(tempData>>8)) | portgdatatemp ;						// D′è?74HC595μ?ê?è???￡?í?ê±à-μíPD2		
		//*(RP)PORTG_DATA = (U8)(tempData>>8)  ;	
		*(RP)PORTG_DATA |= 0x40;							// à-??PD2￡?′￥·￠74HC595￡?ò?????′?
	}
	
	//delay(0x100);
	LedUpdate();                                        // ??ê?μ?LEDé?
	*(RP)PORTE_DATA = 0x0200>>Bit_i;
}

void LedOut(U16 data[], U32 times)
{
	int Segment_i,Bit_i,i;
	U16 Segment_Data;
	U16 tempData;

	for(i = 0; i < times;i++)         //
	{
		for (Bit_i = 0; Bit_i < 4 ;Bit_i++)						// òà′?′?DDμ?è?4??ledμ???ê??úèY
		{	
			Segment_Data=*(data + Bit_i);						// ??μ?ò???led??ê?μ????μ
			for (Segment_i = 0; Segment_i < 16; Segment_i++)		// ??7??ò????μòà′?′?DDê?è?μ?GPIO?ú?D
			{	
				tempData=(Segment_Data<<(15-Segment_i)) & 0x8000;		            // μ?μ?ò???·￠1a1üμ?ò????μ
				*(RP)PORTG_DATA = (U8)(tempData>>8);						// D′è?74HC595μ?ê?è???￡?í?ê±à-μíPD2		
				*(RP)PORTG_DATA = 0x40;							// à-??PD2￡?′￥·￠74HC595￡?ò?????′?
			}	
		#ifdef ROLL
						
			delayl(0x100);									// ???¨1??áê±??3¤?ìμ?μè′yê±??
			LedUpdate();                                        // ??ê?μ?LEDé?
			*(RP)PORTE_DATA = 0x0200>>Bit_i;
										
		#endif			
		}
		
		#ifndef ROLL
			//delay(0x10000);
			LedUpdate();										// ??ê?μ?LEDé?
		    
		#endif
		
	}
	
}


void LedUpdate(void)											// 74HC595??′???′?ê?3?￡??′led??ê?ê1?ü
{	
	*(RP)PORTG_DATA &= ~0x40;
	*(RP)PORTG_DATA |= 0x20;
}


void delayl(int cycle)
{
	int j = 0;
	for(j = 0; j < cycle; j++);	
	return;
}