int_numb.rar_isa dos_numb

/***************************************************************** ** test isa interrupter on dos system for icop SBC ** author: Dyqiang ** company: icop ** date: 2008.07.30 *****************************************************************/ #include <conio.h> #include <bios.h> #include <dos.h> #include "stdio.h" #include "stdlib.h" long count = 0; /* Define the IRQ interrupt addresses and masks */ struct { unsigned char int_id; unsigned char PIC1_mask; unsigned char PIC2_mask; unsigned char old_PIC1_mask; unsigned char old_PIC2_mask; } IRQ[16] = { { 0x08, 0xFE, 0xFF, 0, 0}, /* IRQ00 tick counter */ { 0x09, 0xFD, 0xFF, 0, 0}, /* IRQ01 Keyboard */ { 0x0A, 0xFB, 0xFF, 0, 0}, /* IRQ02 PIC2 */ { 0x0B, 0xF7, 0xFF, 0, 0}, /* IRQ03 COM2 */ { 0x0C, 0xEF, 0xFF, 0, 0}, /* IRQ04 COM1 */ { 0x0D, 0xDF, 0xFF, 0, 0}, /* IRQ05 Mouse */ { 0x0E, 0xBF, 0xFF, 0, 0}, /* IRQ06 Floppy Drive */ { 0x0F, 0x7F, 0xFF, 0, 0}, /* IRQ07 Printer */ { 0x70, 0xFB, 0xFE, 0, 0}, /* IRQ08 Clock */ { 0x71, 0xFB, 0xFD, 0, 0}, /* IRQ09 Redirect IRQ2*/ { 0x72, 0xFB, 0xFB, 0, 0}, /* IRQ10 COM3 */ { 0x73, 0xFB, 0xF7, 0, 0}, /* IRQ11 COM4 */ { 0x74, 0xFB, 0xEF, 0, 0}, /* IRQ12 COM5 */ { 0x75, 0xFB, 0xDF, 0, 0}, /* IRQ13 System Int */ { 0x76, 0xFB, 0xBF, 0, 0}, /* IRQ14 Fixed Disk */ { 0x77, 0xFB, 0x7F, 0, 0}}; /* IRQ15 COM6 */ /* Define port addresses for the 8259 interrupt controller */ #define PICCMD1 0x20 /* Primary Controller */ #define PICMSK1 0x21 #define PICCMD2 0xA0 /* Secondary Controller */ #define PICMSK2 0xA1 #define PICEOI 0x20 /* End of interrupt */ /* Store the pointers to the interrupt address */ void interrupt (*Com)(void); /* Async Interrupt routine */ //void interrupt Asynch_COM(int irq_id) void Asynch_IRQ(int irq_id) { // count++; putch('8'); if (irq_id > 7) outportb(PICCMD2, PICEOI); outportb(PICCMD1,PICEOI); } /* end of the interrupt at this point and return */ /* Pass the correct interrupt to the Async_COM(interrupt id) */ void interrupt IRQ0_Interrupt() { Asynch_IRQ(0); } void interrupt IRQ1_Interrupt() { Asynch_IRQ(1); } void interrupt IRQ2_Interrupt() { Asynch_IRQ(2); } void interrupt IRQ3_Interrupt() { Asynch_IRQ(3); } void interrupt IRQ4_Interrupt() { Asynch_IRQ(4); } void interrupt IRQ5_Interrupt() { Asynch_IRQ(5); } void interrupt IRQ6_Interrupt() { Asynch_IRQ(6); } void interrupt IRQ7_Interrupt() { Asynch_IRQ(7); } void interrupt IRQ8_Interrupt() { Asynch_IRQ(8); } void interrupt IRQ9_Interrupt() { Asynch_IRQ(9); } void interrupt IRQ10_Interrupt() { Asynch_IRQ(10); } void interrupt IRQ11_Interrupt() { Asynch_IRQ(11); } void interrupt IRQ12_Interrupt() { Asynch_IRQ(12); } void interrupt IRQ13_Interrupt() { Asynch_IRQ(13); } void interrupt IRQ14_Interrupt() { Asynch_IRQ(14); } void interrupt IRQ15_Interrupt() { Asynch_IRQ(15); } /*-------- Open the IRQ --------------------- */ void OpenIRQ(int irq_id) { int interrupt_id; int interrupt_no; disable(); interrupt_no = irq_id; interrupt_id = IRQ[interrupt_no].int_id; Com = getvect(interrupt_id); switch (interrupt_no) { case 0: setvect(interrupt_id,IRQ0_Interrupt); break; case 1: setvect(interrupt_id,IRQ1_Interrupt); break; case 2: setvect(interrupt_id,IRQ2_Interrupt); break; case 3: setvect(interrupt_id,IRQ3_Interrupt); break; case 4: setvect(interrupt_id,IRQ4_Interrupt); break; case 5: setvect(interrupt_id,IRQ5_Interrupt); break; case 6: setvect(interrupt_id,IRQ6_Interrupt); break; case 7: setvect(interrupt_id,IRQ7_Interrupt); break; case 8: setvect(interrupt_id,IRQ8_Interrupt); break; case 9: setvect(interrupt_id,IRQ9_Interrupt); break; case 10: setvect(interrupt_id,IRQ10_Interrupt); break; case 11: setvect(interrupt_id,IRQ11_Interrupt); break; case 12: setvect(interrupt_id,IRQ12_Interrupt); break; case 13: setvect(interrupt_id,IRQ13_Interrupt); break; case 14: setvect(interrupt_id,IRQ14_Interrupt); break; case 15: setvect(interrupt_id,IRQ15_Interrupt); break; } IRQ[interrupt_no].old_PIC1_mask = inportb(PICMSK1); outportb(PICMSK1, (IRQ[interrupt_no].old_PIC1_mask & IRQ[interrupt_no].PIC1_mask)); IRQ[interrupt_no].old_PIC2_mask = inportb(PICMSK2); outportb(PICMSK2, (IRQ[interrupt_no].old_PIC2_mask & IRQ[interrupt_no].PIC2_mask)); enable(); } /*------------ Close the IRQ -----------------------*/ void CloseIRQ(int irq_id) { int interrupt_no, interrupt_id; interrupt_no = irq_id; interrupt_id = IRQ[interrupt_no].int_id; IRQ[interrupt_no].old_PIC1_mask = inportb(PICMSK1); outportb(PICMSK1, (IRQ[interrupt_no].old_PIC1_mask | ~IRQ[interrupt_no].PIC1_mask)); IRQ[interrupt_no].old_PIC2_mask = inportb(PICMSK2); outportb(PICMSK2, (IRQ[interrupt_no].old_PIC2_mask | ~IRQ[interrupt_no].PIC2_mask)); setvect(interrupt_id,Com); } /* ----------------------------- MAIN PROGRAM ------------------ */ int main(int argc, char* argv[]) { int irq_id; char ch = 0; clrscr(); printf("\nDM&P ICOP IRQ test Program %s %s.\n\n",__DATE__,__TIME__); printf(" press ESC, quit test programm.\n"); if(argc != 2) { printf("A parameter needed only.\n"); return 1; } irq_id = atoi(argv[1]); if(irq_id>15 || irq_id<0) { printf("Interrupt id is 0~15.\n"); return 1; } OpenIRQ(irq_id); while(!kbhit()) { } CloseIRQ(irq_id); return 0; }