📄 44blib.c
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#include "..\inc\44b.h"
#include "..\inc\44blib.h"
#include "..\inc\def.h"
#include "..\inc\option.h"
#include "..\inc\drv\Serial.h"
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#define STACKSIZE 0xa00 //SVC satck size(do not use user stack)//
#define HEAPEND (_ISR_STARTADDRESS-STACKSIZE-0x500) // = 0xc7ff000//
//SVC Stack Area:0xc(e)7ff000-0xc(e)7ffaff//
#define SIO_START 0x08 //SIO Start
extern char Image$$RW$$Limit[];
volatile unsigned char *downPt;
unsigned int fileSize;
void *mallocPt=Image$$RW$$Limit;
void (*restart)(void)=(void (*)(void))0x0;
void (*run)(void)=(void (*)(void))DOWNLOAD_ADDRESS;
//--------------------------------SYSTEM---------------------------------//
static int delayLoopCount=400;
void Delay(int time)
// time=0: adjust the Delay function by WatchDog timer.//
// time>0: the number of loop time//
// 100us resolution.//
{
int i,adjust=0;
if(time==0)
{
time=200;
adjust=1;
delayLoopCount=400;
rWTCON=((MCLK/1000000-1)<<8)|(2<<3); // 1M/64,Watch-dog,nRESET,interrupt disable//
rWTDAT=0xffff;
rWTCNT=0xffff;
rWTCON=((MCLK/1000000-1)<<8)|(2<<3)|(1<<5); // 1M/64,Watch-dog enable,nRESET,interrupt disable //
}
for(;time>0;time--)
for(i=0;i<delayLoopCount;i++);
if(adjust==1)
{
rWTCON=((MCLK/1000000-1)<<8)|(2<<3);
i=0xffff-rWTCNT; // 1count/16us?????????//
delayLoopCount=8000000/(i*64); //400*100/(i*64/200) //
}
}
//------------------------PORTS------------------------------//
void Port_Init(void)
{
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value
// 2) setting control register
// 3) configure pull-up resistor.
//16bit data bus configuration
// PORT A GROUP
/* BIT 9 8 7 6 5 4 3 2 1 0 */
/* ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0 */
/* 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 */
rPCONA = 0x3ff;
// PORT B GROUP
/* BIT 10 9 8 7 6 5 4 3 2 1 0*/
/* /CS5 /CS4 /CS3 /CS2 /CS1 nWBE3 nWBE2 /SRAS /SCAS SCLK SCKE*/
/* rtl8019 (Reserve)(Reserve)FLASH D12 Out Out Sdram Sdram Sdram Sdram*/
/* 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1*/
rPDATB = 0x7ff;
rPCONB = 0x7cf;
//PORT C GROUP
//BUSWIDTH=16*/
/* PC 15 14 13 12 11 10 9 8 */
/* O O RXD1 TXD1 O O O O*/
/* Nand-CE UDA-CE Uart1 Uart1 NandCLE NandALE L3DATA L3CLK*/
/* 01 01 11 11 01 01 01 01 */
/* PC 7 6 5 4 3 2 1 0*/
/* O O O I IISCLK IISDI IISDO IISLRCK*/
/* VD4 VD5 VD6 VD7 [ for UDA1341 ]*/
/* 11 11 11 11 11 11 11 11*/
rPDATC = 0x3fff; //All IO is high
rPCONC = 0x5f55ffff;
rPUPC = 0x3000; //PULL UP RESISTOR should be enabled to I/O
//PORT D GROUP for LCD
/*BIT 7 6 5 4 3 2 1 0*/
/* VF VM VLINE VCLK VD3 VD2 VD1 VD0*/
/* 10 10 10 10 10 10 10 10*/
rPDATD= 0xff;
rPCOND= 0xaaaa;
rPUPD = 0x0;
//PORT E GROUP
/* Bit 8 7 6 5 4 3 2 1 0 */
/* CODECLK TOUT4 TOUT3 TOUT2 TOUT1 TOUT0 RXD0 TXD0 SMRB(I) */
/* 10 10 10 10 10 10 10 10 00 */
rPDATE = 0x1ff;
rPCONE = 0x2aaa8;
rPUPE = 0x106;
//PORT F GROUP
/* Bit 8 7 6 5 4 3 2 1 0*/
/* SIOCLK SIORxD 7843CS SIOTxD [Input(DMA) ] Output IICSDA IICSCL*/
/* 011 011 001 011 00 00 01 10 10*/
rPDATF = 0x1fb; //GPF2=0
rPCONF = 0x1B2C1A; //0x9241A;
rPUPF = 0x3;
//PORT G GROUP
/*BIT 7 6 5 4 3 2 1 0*/
/* INT7 INT6 INT5 INT4 INT3 INT2 INT1 INT0*/
/* 11 11 00 00 11 11 11 11*/
// ~~~~~~~~input for bios
rPDATG = 0xff;
rPCONG = 0xf0ff;
rPUPG = 0x0; //should be enabled
rSPUCR=0x7; //D15-D0 pull-up disable
/*定义非Cache区*/
rNCACHBE0=(((unsigned int)Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12);
/*所有的外部硬件中断为低电平触发*/
rEXTINT=0x0;
}
/************************* UART ****************************/
extern serial_driver_t s3c44b0_serial0_driver, s3c44b0_serial1_driver;
serial_driver_t* serial_drv[]={&s3c44b0_serial0_driver, &s3c44b0_serial1_driver};
serial_loop_func_t Getch_loopfunc[]={(serial_loop_func_t)NULL,(serial_loop_func_t)NULL,
(serial_loop_func_t)NULL, (serial_loop_func_t)NULL};
#define GETCH_LOOPFUNC_NUM (sizeof(Getch_loopfunc)/sizeof(serial_loop_func_t))
int Uart_Init(int whichUart, int baud)
{
if(whichUart>=sizeof(serial_drv)/sizeof(serial_driver_t*))
return FALSE;
return serial_drv[whichUart]->init(baud);
}
/*************************************************************
设置等待串口数据的时候的循环函数，
成功返回函数的序号(删除的时候使用)，
如果失败则返回-1，
**************************************************************/
int Set_UartLoopFunc(serial_loop_func_t func)
{
int i;
for(i=0;Getch_loopfunc[i];i++);
if(i>=GETCH_LOOPFUNC_NUM)
return -1;
Getch_loopfunc[i]=func;
return i;
}
/*************************************************************
清除等待串口数据的时候的循环函数，
参数是函数的序号，
成功返回TURE，失败则返回FALSE
**************************************************************/
int Clear_UartLoopFunc(int index)
{
if(index>=GETCH_LOOPFUNC_NUM || index<0)
return FALSE;
Getch_loopfunc[index]=NULL;
return TRUE;
}
char Uart_Getch(int whichUart)
{
int i;
if(whichUart>=sizeof(serial_drv)/sizeof(serial_driver_t*))
return FALSE;
while(!serial_drv[whichUart]->poll()){
for(i=0;i<GETCH_LOOPFUNC_NUM;i++){
if(Getch_loopfunc[i])
(*Getch_loopfunc[i])();
}
}
return serial_drv[whichUart]->read();
}
//串口是否有数据输入
int Uart_Poll(int whichUart)
{
if(whichUart>=sizeof(serial_drv)/sizeof(serial_driver_t*))
return FALSE;
return serial_drv[whichUart]->poll();
}
//发送缓冲区清空
void Uart_TxEmpty(int whichUart)
{
if(whichUart<sizeof(serial_drv)/sizeof(serial_driver_t*))
serial_drv[whichUart]->flush_output();
}
//接收缓冲区清空
void Uart_RxEmpty(int whichUart)
{
if(whichUart<sizeof(serial_drv)/sizeof(serial_driver_t*))
serial_drv[whichUart]->flush_input();
}
int Uart_SendByte(int whichUart,int data)
{
if(whichUart>=sizeof(serial_drv)/sizeof(serial_driver_t*))
return FALSE;
return serial_drv[whichUart]->write(data);
}
void Uart_GetString(char *string)
{
char *string2=string;
char c;
while((c=Uart_Getch(0))!='\r')
{
if(c=='\b')
{
if( (int)string2 < (int)string )
{
Uart_Printf("\b \b");
string--;
}
}
else
{
*string++=c;
Uart_SendByte(0,c);
}
}
*string='\0';
Uart_SendByte(0,'\r');
Uart_SendByte(0,'\n');
}
int Uart_GetIntNum(void)
{
char str[30];
char *string=str;
int base=10;
int minus=0;
int lastIndex;
int result=0;
int i;
Uart_GetString(string);
if(string[0]=='-')
{
minus=1;
string++;
}
if(string[0]=='0' && (string[1]=='x' || string[1]=='X'))
{
base=16;
string+=2;
}
lastIndex=strlen(string)-1;
if( string[lastIndex]=='h' || string[lastIndex]=='H' )
{
base=16;
string[lastIndex]=0;
lastIndex--;
}
if(base==10)
{
result=atoi(string);
result=minus ? (-1*result):result;
}
else
{
for(i=0;i<=lastIndex;i++)
{
if(isalpha(string[i]))
{
if(isupper(string[i]))
result=(result<<4)+string[i]-'A'+10;
else
result=(result<<4)+string[i]-'a'+10;
}
else
{
result=(result<<4)+string[i]-'0';
}
}
result=minus ? (-1*result):result;
}
return result;
}
void Uart_SendString(char *pt)
{
while(*pt){
if(*pt=='\n')
Uart_SendByte(0,'\r');
Uart_SendByte(0,*pt++);
}
}
//if you don't use vsprintf(), the code size is reduced very much.
void Uart_Printf(char *fmt,...)
{
va_list ap;
static char string[256];
va_start(ap,fmt);
vsprintf(string,fmt,ap);
Uart_SendString(string);
va_end(ap);
}
/************************* Timer ********************************/
void Timer_Start(int divider) //0:16us,1:32us 2:64us 3:128us
{
rWTCON=((MCLK/1000000-1)<<8)|(divider<<3);
rWTDAT=0xffff;
rWTCNT=0xffff;
// 1/16/(65+1),nRESET & interrupt disable
rWTCON=((MCLK/1000000-1)<<8)|(divider<<3)|(1<<5);
}
int Timer_Stop(void)
{
rWTCON=((MCLK/1000000-1)<<8);
return (0xffff-rWTCNT);
}
/************************* PLL ********************************/
void ChangePllValue(int mdiv,int pdiv,int sdiv)
{
rPLLCON=(mdiv<<12)|(pdiv<<4)|sdiv;
}
/************************* General Library **********************/
void Cache_Flush(void)
{
int i,saveSyscfg;
saveSyscfg=rSYSCFG;
rSYSCFG=SYSCFG_0KB;
for(i=0x10004000;i<0x10004800;i+=16)
{
*((int *)i)=0x0;
}
rSYSCFG=saveSyscfg;
}
void init_SIO()
{
/*7 6 5 4 3 2 1:0 */
/*Internal clock,MSB mode,Transmit/Receive mode,rising edge??,No action,Non hand-shaking mode,SIO interrupt mode*/
/*0 0 1 0(not 1) 0 0 01*/
//by threewater not as the 44b0 datasheet. rising edge/falling edge?? maybe there is something wrong with the datasheet
rSIOCON=0x21;
rSBRDR=15;//band rate = 60MHz/2/(15+1)=1.875MHz
rIVTCNT=7;//Intervals=60MHz/4/(7+1)=1.875MHz
}
unsigned char ReadSIOData()
{
// while(rSIOCON&SIO_START);//等待发送
return rSIODAT;
}
void SendSIOData(unsigned char data)
{
// while(rSIOCON&SIO_START);//等待发送
rI_ISPC=BIT_SIO;
rSIODAT=data;
rSIOCON|=SIO_START;
while(!(rINTPND&BIT_SIO));
rI_ISPC=BIT_SIO;
}
/***************************************************************
SIOTXD和SIORXD通过两个三态门连接，组成了SDIO的双向接口，
通过GPF2来控制三态门的开启，从而控制SDIO的方向，
对于处理器，GPF2=0的时候为输出，GPF2=1的时候为输入
****************************************************************/
#define SDIO_CTRLIO (0x4) //GPF2
#define SETSDIO_OUT() (rPDATF&=(~SDIO_CTRLIO))
#define SETSDIO_IN() (rPDATF|=SDIO_CTRLIO)
unsigned char ReadSDIO()
{
SETSDIO_IN();
SendSIOData(0);
SETSDIO_OUT();
return rSIODAT;
}
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