📄 2440lib.c
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//===================================================================
// File Name : 2440lib.c
// Function : S3C2410 PLL,Uart, LED, Port Init
// Date : March 20, 2002
// Version : 0.0
// History
// 0.0 : Programming start (February 20,2002) -> SOP
//===================================================================
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
extern char Image$$RW$$Limit[];
void* mallocPt = Image$$RW$$Limit;
//***************************[ SYSTEM ]***************************************************
void Delay( int time )
{
U32 val = ( PCLK >> 3 ) / 1000 - 1;
rTCFG0 &= ~( 0xff << 8 );
rTCFG0 |= 3 << 8; //prescaler = 3+1
rTCFG1 &= ~( 0xf << 12 );
rTCFG1 |= 0 << 12; //mux = 1/2
rTCNTB3 = val;
rTCMPB3 = val >> 1; // 50%
rTCON &= ~( 0xf << 16 );
rTCON |= 0xb << 16; //interval, inv-off, update TCNTB3&TCMPB3, start timer 3
rTCON &= ~( 2 << 16 ); //clear manual update bit
while ( time-- )
{
while ( rTCNTO3 >= val >> 1 );
while ( rTCNTO3 < val >> 1 );
};
}
//***************************[ PORTS ]****************************************************
void Port_Init0( void )
{
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value(GPnDAT)
// 2) setting control register (GPnCON)
// 3) configure pull-up resistor(GPnUP)
//32bit data bus configuration
//*** PORT A GROUP
//Ports : GPA22 GPA21 GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12
//Signal : nFCE nRSTOUT nFRE nFWE ALE CLE nGCS5 nGCS4 nGCS3 nGCS2 nGCS1
//Binary : 1 1 1 , 1 1 1 1 , 1 1 1 1
//Ports : GPA11 GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
//Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0
//Binary : 1 1 1 1 , 1 1 1 1 , 1 1 1 1
rGPACON = 0x7fffff;
//**** PORT B GROUP
//Ports : GPB10 GPB9 GPB8 GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0
//Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
//Setting: INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
//Binary : 00 , 01 00 , 01 00 , 01 01 , 01 01 , 01 01
rGPBCON = 0x044555;
rGPBUP = 0x7ff; // The pull up function is disabled GPB[10:0]
//*** PORT C GROUP
//Ports : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8 GPC7 GPC6 GPC5 GPC4 GPC3 GPC2 GPC1 GPC0
//Signal : VD7 VD6 VD5 VD4 VD3 VD2 VD1 VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
rGPCCON = 0xaaaaaaaa;
rGPCUP = 0xffff; // The pull up function is disabled GPC[15:0]
//*** PORT D GROUP
//Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
//Signal : VD23 VD22 VD21 VD20 VD19 VD18 VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9 VD8
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,10 10
rGPDCON = 0xaaaaaaaa;
rGPDUP = 0xffff; // The pull up function is disabled GPD[15:0]
//*** PORT E GROUP
//Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
//Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK IN
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 00 ,
//-------------------------------------------------------------------------------------------------------
//Ports : GPE3 GPE2 GPE1 GPE0
//Signal : IN IN IN IN
//Binary : 00 00 , 00 00
//rGPECON = 0xaaaaaaaa;
//rGPEUP = 0xffff; // The pull up function is disabled GPE[15:0]
rGPECON = 0xaaaaa800; // For added AC97 setting
rGPEUP = 0xffff;
//*** PORT F GROUP
//Ports : GPF7 GPF6 GPF5 GPF4 GPF3 GPF2 GPF1 GPF0
//Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
//Setting: Output Output Output Output EINT3 EINT2 EINT1 EINT0
//Binary : 01 01 , 01 01 , 10 10 , 10 10
rGPFCON = 0x55aa;
rGPFUP = 0xff; // The pull up function is disabled GPF[7:0]
//*** PORT G GROUP
//Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
//Signal : nYPON YMON nXPON XMON EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
//Setting: nYPON YMON nXPON XMON EINT19 Output Output Output SPICLK1 SPIMOSI1
//Binary : 11 11 , 11 11 , 10 01 , 01 01 , 11 11
//-----------------------------------------------------------------------------------------
//Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
//Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
//Setting: SPIMISO1 LCD_PWRDN EINT11 nSS0 EINT9 EINT8
//Binary : 11 11 , 10 11 , 10 10
rGPGCON = 0xff95ffba;
rGPGUP = 0xffff; // The pull up function is disabled GPG[15:0]
//*** PORT H GROUP
//Ports : GPH10 GPH9 GPH8 GPH7 GPH6 GPH5 GPH4 GPH3 GPH2 GPH1 GPH0
//Signal : CLKOUT1 CLKOUT0 UCLK nCTS1 nRTS1 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
//Binary : 10 , 10 10 , 11 11 , 10 10 , 10 10 , 10 10
rGPHCON = 0x2afaaa;
rGPHUP = 0x7ff; // The pull up function is disabled GPH[10:0]
// Added for S3C2440X, DonGo
//*** PORT J GROUP
//Ports : GPJ12 GPJ11 GPJ10 GPJ9 GPJ8 GPJ7 GPJ6 GPJ5 GPJ4 GPJ3 GPJ2 GPJ1 GPJ0
//Signal : CAMRESET CAMPCLKOUT CAMHREF CAMVSYNC CAMPCLKIN CAMDAT[7] CAMDAT[6] CAMDAT[5] CAMDAT[4] CAMDAT[3] CAMDAT[2] CAMDAT[1] CAMDAT[0]
//Binary : 10 10 10 10 10 10 10 10 10 10 10 10 10
rGPJCON = 0x02aaaaaa;
rGPJUP = 0x1fff; // The pull up function is disabled GPH[10:0]
//External interrupt will be falling edge triggered.
rEXTINT0 = 0x22222222; // EINT[7:0]
rEXTINT1 = 0x22222222; // EINT[15:8]
rEXTINT2 = 0x22222222; // EINT[23:16]
}
void Port_Init( void )
{
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value(GPnDAT)
// 2) setting control register (GPnCON)
// 3) configure pull-up resistor(GPnUP)
//32bit data bus configuration
//*** PORT A GROUP
//Ports : GPA22 GPA21 GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12
//Signal : nFCE nRSTOUT nFRE nFWE ALE CLE nGCS5 nGCS4 nGCS3 nGCS2 nGCS1
//Binary : 1 1 1 , 1 1 1 1 , 1 1 1 1
//Ports : GPA11 GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
//Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0
//Binary : 1 1 1 1 , 1 1 1 1 , 1 1 1 1
rGPACON = 0x7fffff;
//**** PORT B GROUP
//Ports : GPB10 GPB9 GPB8 GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0
//Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
//Setting: INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
//Binary : 00 , 01 00 , 01 00 , 01 01 , 01 01 , 01 01
rGPBCON = 0x000150;
rGPBUP = 0x7ff; // The pull up function is disabled GPB[10:0]
//*** PORT C GROUP
//Ports : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8 GPC7 GPC6 GPC5 GPC4 GPC3 GPC2 GPC1 GPC0
//Signal : VD7 VD6 VD5 VD4 VD3 VD2 VD1 VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
rGPCCON = 0xaaaaaaaa;
rGPCUP = 0xffff; // The pull up function is disabled GPC[15:0]
//*** PORT D GROUP
//Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
//Signal : VD23 VD22 VD21 VD20 VD19 VD18 VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9 VD8
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,10 10
rGPDCON = 0xaaaaaaaa;
rGPDUP = 0xffff; // The pull up function is disabled GPD[15:0]
//*** PORT E GROUP
//Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
//Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK IN
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 00 ,
//-------------------------------------------------------------------------------------------------------
//Ports : GPE3 GPE2 GPE1 GPE0
//Signal : IN IN IN IN
//Binary : 00 00 , 00 00
//rGPECON = 0xaaaaaaaa;
//rGPEUP = 0xffff; // The pull up function is disabled GPE[15:0]
rGPECON = 0xa02aa800; // For added AC97 setting
rGPEUP = 0xffff;
//*** PORT F GROUP
//Ports : GPF7 GPF6 GPF5 GPF4 GPF3 GPF2 GPF1 GPF0
//Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
//Setting: Output Output Output Output EINT3 EINT2 EINT1 EINT0
//Binary : 01 01 , 01 01 , 10 10 , 10 10
rGPFCON = 0x55aa;
rGPFUP = 0xff; // The pull up function is disabled GPF[7:0]
//*** PORT G GROUP
//Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
//Signal : nYPON YMON nXPON XMON EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
//Setting: nYPON YMON nXPON XMON EINT19 Output Output Output SPICLK1 SPIMOSI1
//Binary : 11 11 , 11 11 , 10 01 , 01 01 , 11 11
//-----------------------------------------------------------------------------------------
//Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
//Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
//Setting: SPIMISO1 LCD_PWRDN EINT11 nSS0 EINT9 EINT8
//Binary : 11 11 , 10 11 , 10 10
rGPGCON = 0x00a2aaaa;// GPG9 input without pull-up, hzh
rGPGUP = 0xffff; // The pull up function is disabled GPG[15:0]
//*** PORT H GROUP
//Ports : GPH10 GPH9 GPH8 GPH7 GPH6 GPH5 GPH4 GPH3 GPH2 GPH1 GPH0
//Signal : CLKOUT1 CLKOUT0 UCLK nRXD2 nTXD2 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
//Binary : 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
rGPHCON = 0x00aaaa;
rGPHUP = 0x7ff; // The pull up function is disabled GPH[10:0]
// Added for S3C2440X, DonGo
//*** PORT J GROUP
//Ports : GPJ12 GPJ11 GPJ10 GPJ9 GPJ8 GPJ7 GPJ6 GPJ5 GPJ4 GPJ3 GPJ2 GPJ1 GPJ0
//Signal : CAMRESET CAMPCLKOUT CAMHREF CAMVSYNC CAMPCLKIN CAMDAT[7] CAMDAT[6] CAMDAT[5] CAMDAT[4] CAMDAT[3] CAMDAT[2] CAMDAT[1] CAMDAT[0]
//Binary : 10 10 10 10 10 10 10 10 10 10 10 10 10
rGPJCON = 0x02aaaaaa;
rGPJUP = 0x1fff; // The pull up function is disabled GPH[10:0]
//External interrupt will be falling edge triggered.
rEXTINT0 = 0x22222222; // EINT[7:0]
rEXTINT1 = 0x22222222; // EINT[15:8]
rEXTINT2 = 0x22222222; // EINT[23:16]
}
/********************************************************************************************************************
【函数名称】void __inline RS485_1_Out_In( U8 TXRX )
【功能描述】TRUE表示为发送状态，FALSE表示为接收状态
********************************************************************************************************************/
void __inline RS485_1_Out_In( U8 TXRX )
{
rGPBCON = ( rGPBCON & ~( 0x3 << 14 ) ) | ( 0x01 << 14 );
if ( TXRX == TRUE )
{
rGPBDAT = ( rGPBDAT & ~( 0x1 << 7 ) ) | ( 0x01 << 7 );
}
else
{
rGPBDAT = ( rGPBDAT & ~( 0x1 << 7 ) ) | ( 0x00 << 7 );
}
}
/********************************************************************************************************************
【函数名称】void __inline RS485_2_Out_In( U8 TXRX )
【功能描述】TRUE表示为发送状态，FALSE表示为接收状态
********************************************************************************************************************/
void __inline RS485_2_Out_In( U8 TXRX )
{
rGPBCON = ( rGPBCON & ~( 0x3 << 16 ) ) | ( 0x01 << 16 );
if ( TXRX == TRUE )
{
rGPBDAT = ( rGPBDAT & ~( 0x1 << 8 ) ) | ( 0x01 << 8 );
}
else
{
rGPBDAT = ( rGPBDAT & ~( 0x1 << 8 ) ) | ( 0x00 << 8 );
}
}
//***************************[ UART ]******************************
static int whichUart = 0;
void Uart_Init( int pclk , int baud )
{
int i;
if ( pclk == 0 )
pclk = PCLK;
rUFCON0 = 0x0; //UART channel 0 FIFO control register, FIFO disable
rUFCON1 = 0x0; //UART channel 1 FIFO control register, FIFO disable
rUFCON2 = 0x0; //UART channel 2 FIFO control register, FIFO disable
rUMCON0 = 0x0; //UART chaneel 0 MODEM control register, AFC disable
rUMCON1 = 0x0; //UART chaneel 1 MODEM control register, AFC disable
//UART0
rULCON0 = 0x3; //Line control register : Normal,No parity,1 stop,8 bits
// [10] [9] [8] [7] [6] [5] [4] [3:2] [1:0]
// Clock Sel, Tx Int, Rx Int, Rx Time Out, Rx err, Loop-back, Send break, Transmit Mode, Receive Mode
// 0 1 0 , 0 1 0 0 , 01 01
// PCLK Level Pulse Disable Generate Normal Normal Interrupt or Polling
rUCON0 = 0x245; // Control register
rUBRDIV0 = ( ( int ) ( pclk / 16. / baud + 0.5 ) - 1 ); //Baud rate divisior register 0
//UART1
rULCON1 = 0x3;
rUCON1 = 0x245;
rUBRDIV1 = ( ( int ) ( pclk / 16. / baud + 0.5 ) - 1 );
//UART2
rULCON2 = 0x3;
rUCON2 = 0x245;
rUBRDIV2 = ( ( int ) ( pclk / 16. / baud + 0.5 ) - 1 );
for ( i = 0; i < 100; i++ )
;
RS485_1_Out_In( FALSE );
RS485_2_Out_In( FALSE );
}
//===================================================================
void Uart_Select( int ch )
{
whichUart = ch;
if( ch == 2 )
{
rGPECON = rGPECON & (~(3<<26)) | (1<<26) ; //GPE13为IO口输出
rGPEUP = rGPEUP & (~(1<<13)) ; //GPE13上拉有效
//rGPEDAT = rGPEDAT | (1<<13) ; //RS485处于发送状态
rGPEDAT = rGPEDAT & (~(1<<13)) ; //RS485处于接收状态
}
}
//===================================================================
void Uart_TxEmpty( int ch )
{
if ( ch == 0 )
while ( !( rUTRSTAT0 & 0x4 ) ); //Wait until tx shifter is empty.
else if ( ch == 1 )
while ( !( rUTRSTAT1 & 0x4 ) ); //Wait until tx shifter is empty.
else if ( ch == 2 )
while ( !( rUTRSTAT2 & 0x4 ) ); //Wait until tx shifter is empty.
}
//=====================================================================
char Uart_Getch( void )
{
if ( whichUart == 0 )
{
while ( !( rUTRSTAT0 & 0x1 ) ); //Receive data ready
return RdURXH0();
}
else if ( whichUart == 1 )
{
while ( !( rUTRSTAT1 & 0x1 ) ); //Receive data ready
return RdURXH1();
}
else if ( whichUart == 2 )
{
while ( !( rUTRSTAT2 & 0x1 ) ); //Receive data ready
return RdURXH2();
}
return 0 ;
}
//====================================================================
char Uart_GetKey( void )
{
if ( whichUart == 0 )
{
if ( rUTRSTAT0 & 0x1 ) //Receive data ready
return RdURXH0();
else
return 0;
}
else if ( whichUart == 1 )
{
if ( rUTRSTAT1 & 0x1 ) //Receive data ready
return RdURXH1();
else
return 0;
}
else if ( whichUart == 2 )
{
if ( rUTRSTAT2 & 0x1 ) //Receive data ready
return RdURXH2();
else
return 0;
}
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