?? port.c
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#include <stdio.h>
#include <time.h>
#include <conio.h>
#include <string.h>
#include <dos.h>
#include <stdlib.h>
#include <math.h>
#include <bios.h>
#include "config.h"
#include "mem.h"
#include "drv\port.h"
#ifdef __cplusplus
#define __CPPARGS ...
#else
#define __CPPARGS
#endif
//net
unsigned char old_intmas_reg1=0;
unsigned char old_intmas_reg2=0;
int rr0,rr1,rr2,rr3,rr4,rr5,rr6,rr7,rr8,rr9,rr10,rr11,rr12,rr13,rr14,rr15;
void interrupt_initial(void);
void interrupt far timer_interrupt(void);
void interrupt (* old_int0)(void);
void interrupt far com1_interrupt(void);
void interrupt (* old_com1int)(void);
void interrupt far com2_interrupt(void);
void interrupt (* old_com2int)(void);
void interrupt far com34_interrupt(void);
void interrupt (* old_int5)(void);
void interrupt far com56_interrupt(void);
void interrupt (* old_int6)(void);
void interrupt far com78_interrupt(void);
void interrupt (* old_int7)(void);
void interrupt far com90_interrupt(void);
void interrupt (* old_int11)(void);
void interrupt (* old_int14)(void);
void interrupt far com1112_interrupt(void);
void interrupt (* old_int15)(void);
void interrupt far com1314_interrupt(void);
void interrupt (* old_int9)(void);
//void interrupt far keyboard_interrupt(void);
//void interrupt (* old_keyint)(void);
void interrupt nic_interrupt(__CPPARGS);
void interrupt (* old_int10)(__CPPARGS);
void interrupt_zi_programe_async(int Tcom_number);//2003-06-10
void interrupt_zi_programe_async_a(int Tcom_number);//2003-06-10
void open_RTS(int Tport);
void clear_RTS(int Tport);
extern int rev_state;
extern unsigned char GpsMsg[160];
nic_ini(void)
{
unsigned char val;
unsigned int port,value;
int i;
//int int_num;
char string[36];
/* port=CR;
val=0xC1;
outportb(port,val); //program command register for page 3
port=CONFIG1;
outportb(port,0x10);
val=inportb(port);
int_num=(val&0x70)>>4;
printf("nic int is:%d",int_num);*/
disable();
port=CR;
val=0x01; /*00100001*/
outportb(port,val); /*program command register for page 0*/
port=DCR;
val=0x19; /*01001001*/
outportb(port,val); /*initialize data configuration register*/
val=0;
port=RBCR0;
outportb(port,val);
port=RBCR1;
outportb(port,val); /*clear remote byte count register*/
port=RCR;
val=0x06; // address match;
outportb(port,val); /*initialize receive configuration register*/
port=TCR;
val=0x00; /*00000010*/
outportb(port,val); /*place the NIC in LOOPBACK mode 1*/
port=PSTART;
val=0x4c; //? why 4c
outportb(port,val); /*PSTART=4ch*/
port=PSTOP;
val=0x7f;
outportb(port,val); /*PSTOP=7fh*/
port=BNRY;
val=0x4c; /*BNDRY=PSTART*/
outportb(port,val); /*initialize Receive Buffer Ring*/
port=ISR;
val=0xff; /*11111111*/
outportb(port,val); /*clear interrupt status register*/
port=IMR;
val=0xff; /*11111111*/
outportb(port,val);
port=DCR;
val=0x59; /*01001000 0x49 as a word*/
outportb(port,val);
val=0;
port=RSAR0;
outportb(port,val);
port=RSAR1;
outportb(port,val); /*set remote start address to 0000h*/
port=RBCR1;
outportb(port,val);
port=RBCR0;
val=20;
outportb(port,val); /*DMA byte counter=20*/
port=CR;
val=0x0a; /*00001010*/
outportb(port,val);
port=CR;
val=0x41;
outportb(port,val);
port=PAR0; //set mac address;
for (i=0;i<6;i++){
mac_addr[i]=inportb(port);
port++;
}
port=MAR0; /*initialize mult_add*/
for (i=0;i<8;i++){
outportb(port,0xff);
port++;
}
port=CURR;
val=0x4d; /* CURR=PSTART+1*/
next_pkt=val;
outportb(port,val); /* initialize CURR & next_pkt*/
port=CR;
val=0x22; /*00100010*/
outport(port,val); /*put NIC in START mode*/
port=TCR;
val=0; /*00000000*/
outportb(port,val); /*set NIC to normal operation*/
enable();
return 1;
}
/******************************************************************/
//--------------------------------------------com port Async seting;
void com_initial(void)
{
int ifor1;
com1_initial();
//InitCom(1,9600);
com2_initial();
outp(com3_commandport,0x09);
outp(com3_commandport,0xc0); //hardeware reset;
if(Port_Set[2][5]==1)
sync_com_initial(3,Port_Set[2][4]);
else
async_com_initial(3);
if(Port_Set[3][5]==1)
sync_com_initial(4,Port_Set[3][4]);
else
async_com_initial(4);
outp(com5_commandport,0x09);
outp(com5_commandport,0xc0); //hardeware reset;
if(Port_Set[4][5]==1)
sync_com_initial(5,Port_Set[4][4]);
else
async_com_initial(5);
if(Port_Set[5][5]==1)
sync_com_initial(6,Port_Set[5][4]);
else
async_com_initial(6);
outp(com7_commandport,0x09);
outp(com7_commandport,0xc0); //hardeware reset;
if(Port_Set[6][5]==1)
sync_com_initial(7,Port_Set[6][4]);
else
async_com_initial(7);
if(Port_Set[7][5]==1)
sync_com_initial(8,Port_Set[7][4]);
else
async_com_initial(8);
outp(com9_commandport,0x09);
outp(com9_commandport,0xc0); //hardeware reset;
if(Port_Set[8][5]==1)
sync_com_initial(9,Port_Set[8][4]);
else
async_com_initial(9);
if(Port_Set[9][5]==1)
sync_com_initial(10,Port_Set[9][4]);
else
async_com_initial(10);
outp(com11_commandport,0x09);
outp(com11_commandport,0xc0); //hardeware reset;
if(Port_Set[10][5]==1)
sync_com_initial(11,Port_Set[10][4]);
else
async_com_initial(11);
if(Port_Set[11][5]==1)
sync_com_initial(12,Port_Set[11][4]);
else
async_com_initial(12);
outp(com13_commandport,0x09);
outp(com13_commandport,0xc0); //hardeware reset;
if(Port_Set[12][5]==1)
sync_com_initial(13,Port_Set[12][4]);
else
async_com_initial(13);
if(Port_Set[13][5]==1)
sync_com_initial(14,Port_Set[13][4]);
else
async_com_initial(14);
}
void com1_initial(void)
{
int baut_rate;
baut_rate=115200L/(pow(2,Port_Set[0][1])*300);
outp(com1_lineclt,0x03); //set data format and rate of bit;
outp(com1_lineclt,0x80|inp(com1_lineclt)); //8位數據，1位停止位，無奇偶校驗
outp(com1_brlsb,baut_rate & 0x00ff);//0x30); //波特率為2400
outp(com1_brmsb,(baut_rate>>8) & 0x00ff);//0x00);
outp(com1_lineclt,0x7f&inp(com1_lineclt)); //DLAB=0;
inp(com1_dataport);
}
void com2_initial(void)
{
int baut_rate;
baut_rate=115200L/(pow(2,Port_Set[1][1])*300);
outp(com2_lineclt,0x03); //set data format and rate of bit;
outp(com2_lineclt,0x80|inp(com2_lineclt)); //8位數據，1位停止位，無奇偶校驗
outp(com2_brlsb,baut_rate & 0x00ff);//0x30); //波特率為2400
outp(com2_brmsb,(baut_rate>>8) & 0x00ff);//0x00);
outp(com2_lineclt,0x7f&inp(com2_lineclt)); //DLAB=0;
inp(com2_dataport);
}
void async_com_initial(int Tcom_number)
{
int baut_hi;
int baut_lo;
int commandport;
int dataport;
unsigned long int tc=0,tc1=0,tc2=0;
unsigned long int br=0;
int baut_rate;
baut_rate=pow(2,Port_Set[Tcom_number-1][1])*300;
if(Tcom_number%2)
{
commandport=0x2d2+(Tcom_number-3)*2;
dataport=0x2d3+(Tcom_number-3)*2;
outp(commandport,0x09);
outp(commandport,0x80); //channel a reset;
outp(commandport,0x04);
outp(commandport,0xc4); //select asyn mode: no parity: 1 stop bit; *64 clock mode;
outp(commandport,0x03);
outp(commandport,0xc0); // 8 bit received per character; no auto mode;
outp(commandport,0x0e);
outp(commandport,0x00); //disable BRG;
outp(commandport,0x0e);
outp(commandport,0x02); //BRG clock soure: PCLK pin;
br=baut_rate;//2400; //NRZI
// printf("asny: %d",baut_rate);
tc=(clock_f/(2*br*64))-2;
tc1=tc2=tc;
baut_hi=(tc1&0xff00)>>8;
baut_lo=(tc2&0x00ff);
// printf("h=%2X l=%2X\n",baut_hi,baut_lo);
outp(commandport,0x0c);
outp(commandport,baut_lo); //set baut rate lower byte,2400;
outp(commandport,0x0d);
outp(commandport,baut_hi); //set baut rate higher byte;
outp(commandport,0x0b);
outp(commandport,0x56); //set /TRXC PIN;
outp(commandport,0x01);
//outp(commandport,0x12); //receive,transmit interupt enable;
outp(commandport,0x10); //receive,transmit interupt enable;
outp(commandport,0x09);
outp(commandport,0x08); //master interupt enable;
outp(commandport,0x0e);
outp(commandport,0x03); //enable BRG;
outp(commandport,0x03);
outp(commandport,0xc1); //ENABLE RECEIVE;
outp(commandport,0x05);
outp(commandport,0x68); //ENABLE TRANSMIT;
inp(dataport);
}
else
{
commandport=0x2d0+(Tcom_number-4)*2;
dataport=0x2d1+(Tcom_number-4)*2;
outp(commandport,0x09);
outp(commandport,0x40); //channel b reset;
outp(commandport,0x04);
outp(commandport,0xc4); //select asyn mode: no parity: 1 stop bit; *64 clock mode;
outp(commandport,0x03);
outp(commandport,0xc0); // 8 bit received per character; no auto mode;
outp(commandport,0x0e);
outp(commandport,0x00); //disable BRG;
outp(commandport,0x0e);
outp(commandport,0x02); //BRG clock soure: PCLK pin;
br=baut_rate;//2400; //NRZI IN DPLL
// printf("asny: %d",baut_rate);
tc=(clock_f/(2*br*64))-2;
tc1=tc2=tc;
baut_hi=(tc1&0xff00)>>8;
baut_lo=(tc2&0x00ff);
// printf("h=%2X l=%2X\n",baut_hi,baut_lo);
outp(commandport,0x0c);
outp(commandport,baut_lo); //set baut rate lower byte,2400;
outp(commandport,0x0d);
outp(commandport,baut_hi); //set baut rate higher byte;
outp(commandport,0x0b);
outp(commandport,0x56); //set /TRXC PIN;
outp(commandport,0x01);
outp(commandport,0x10); //receive interupt enable;
//outp(commandport,0x12); //receive,transmit interupt enable;
outp(commandport,0x09);
outp(commandport,0x08); //master interupt enable;
outp(commandport,0x0e);
outp(commandport,0x03); //enable BRG;
outp(commandport,0x03);
outp(commandport,0xc1); //ENABLE RECEIVE;
outp(commandport,0x05);
outp(commandport,0x68); //ENABLE TRANSMIT;
inp(dataport);
}
}
void sync_com_initial(int Tcom_number,int Tclock_type)
{
int baut_hi;
int baut_lo;
int commandport;
int dataport;
unsigned long int tc=0,tc1=0,tc2=0;
unsigned long int br=0;
int baut_rate;
baut_rate=pow(2,Port_Set[Tcom_number-1][1])*300;
if(Tcom_number%2)
{
commandport=0x2d2+(Tcom_number-3)*2;
dataport=0x2d3+(Tcom_number-3)*2;
outp(commandport,0x09);
outp(commandport,0x80); //channel a reset;
}
else
{
commandport=0x2d0+(Tcom_number-4)*2;
dataport=0x2d1+(Tcom_number-4)*2;
outp(commandport,0x09);
outp(commandport,0x40); //channel a reset;
}
outp(commandport,0x03); //WR3
outp(commandport,0xd8); //8 bit received per character;
//no auto mode;
//CRC check;
//no address search;
//sync character load inhibit;
//rx disable;
outp(commandport,0x05); //WR5
//outp(commandport,0x65); //Tx 8 bits/character;
outp(commandport,0x61); //Tx 8 bits/character;
//tx CRC enable;
//tx disable;
outp(commandport,0x04); //WR4
if(Tclock_type==0)
outp(commandport,0xa0); //X32 clock mode; select SDLC mode(0111 1110 flag);select sync mode;no parity;
else
outp(commandport,0x20); //X1 clock mode; select SDLC mode(0111 1110 flag);select sync mode;no parity;
outp(commandport,0x0f); //WR15
outp(commandport,0x0); //the flag '7eH' is written;
outp(commandport,0x07); //WR7
outp(commandport,0x7e); //the flag '7eH' is written;
outp(commandport,0x0f); //WR15
outp(commandport,0x01); //
outp(commandport,0x07); //WR7'
outp(commandport,0x43); //Extended read enable;
//automatic Tx Underrun/EOM latch reset;
//auto SDLC transmission open;
outp(commandport,0x06); //WR6
outp(commandport,0xff); //init address;
outp(commandport,0x0a); //WR10
//outp(commandport,0x80); //+++
outp(commandport,0x88); //CRC preset I//O;
//abort/flag on underrun;
//8-bit Sync;ENCODE :NRZ;
outp(commandport,0x0e);
outp(commandport,0x60); //disable BRG;disable DPLL;
if(Tclock_type==0)
{
br=baut_rate; //NRZI IN DPLL
// printf("sny DPLL: %d",baut_rate);
tc=(clock_f/(2*br*32))-2;
tc1=tc2=tc;
baut_hi=(tc1&0xff00)>>8;
baut_lo=(tc2&0x00ff);
// printf("h=%2X l=%2X\n",baut_hi,baut_lo);
}
else
{
br=baut_rate; //NRZI
// printf("sny I: %d",baut_rate);
tc=(clock_f/(2*br))-2;
tc1=tc2=tc;
baut_hi=(tc1&0xff00)>>8;
baut_lo=(tc2&0x00ff);
// printf("h=%2X l=%2X\n",baut_hi,baut_lo);
}
outp(commandport,0x0c);
outp(commandport,baut_lo); //set baut rate lower byte,2400;
outp(commandport,0x0d);
outp(commandport,baut_hi); //set baut rate higher byte;
outp(commandport,0x0e);
outp(commandport,0x02); //BRG clock soure: PCLK pin;
if(Tclock_type==0) //DPLL;
{
outp(commandport,0x0b);
outp(commandport,0x7f); //dpll
outp(commandport,0x0e);
outp(commandport,0x83); //BRG clock soure: PCLK pin;
//DPLL CLOCK SOURCE=BRG;
outp(commandport,0x0e);
outp(commandport,0xe3); //op mode;DPLL IN NRZI;
outp(commandport,0x0e);
outp(commandport,0x23); //enable BRG; enable DPLL;
}
else if(Tclock_type==1) //ICLK;
{
outp(commandport,0x0b);
outp(commandport,0x56); //56: R T CLOCK ICLK
//0X11: T:ICLK; R:OCLK;
outp(commandport,0x0e);
outp(commandport,0x63); //BRG clock soure: PCLK pin;
//DPLL CLOCK SOURCE=BRG;
}
else //OCLK;
{
outp(commandport,0x0b);
outp(commandport,0x05); //R T CLOCK OCLK;
outp(commandport,0x0e);
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