/* Interrupt numbers and hardware vectors. */#ifndef _INTERRUPT_H#define _INTERRUPT_H#if (CHIP == INTEL)/* 8259A interrupt controller ports. */#define INT_CTL         0x20	/* I/O port for interrupt controller */#define INT_CTLMASK     0x21	/* setting bits in this port disables ints */#define INT2_CTL        0xA0	/* I/O port for second interrupt controller */#define INT2_CTLMASK    0xA1	/* setting bits in this port disables ints *//* Magic numbers for interrupt controller. */#define END_OF_INT      0x20	/* code used to re-enable after an interrupt *//* Interrupt vectors defined/reserved by processor. */#define DIVIDE_VECTOR      0	/* divide error */#define DEBUG_VECTOR       1	/* single step (trace) */#define NMI_VECTOR         2	/* non-maskable interrupt */#define BREAKPOINT_VECTOR  3	/* software breakpoint */#define OVERFLOW_VECTOR    4	/* from INTO *//* Fixed system call vector. */#define SYS_VECTOR        32	/* system calls are made with int SYSVEC */#define SYS386_VECTOR     33	/* except 386 system calls use this */#define LEVEL0_VECTOR     34	/* for execution of a function at level 0 *//* Suitable irq bases for hardware interrupts.  Reprogram the 8259(s) from * the PC BIOS defaults since the BIOS doesn't respect all the processor's * reserved vectors (0 to 31). */#define BIOS_IRQ0_VEC   0x08	/* base of IRQ0-7 vectors used by BIOS */#define BIOS_IRQ8_VEC   0x70	/* base of IRQ8-15 vectors used by BIOS */#define IRQ0_VECTOR     0x50	/* nice vectors to relocate IRQ0-7 to */#define IRQ8_VECTOR     0x70	/* no need to move IRQ8-15 *//* Hardware interrupt numbers. */#define NR_IRQ_VECTORS    16#define CLOCK_IRQ          0#define KEYBOARD_IRQ       1#define CASCADE_IRQ        2	/* cascade enable for 2nd AT controller */#define ETHER_IRQ          3	/* default ethernet interrupt vector */#define SECONDARY_IRQ      3	/* RS232 interrupt vector for port 2 */#define RS232_IRQ          4	/* RS232 interrupt vector for port 1 */#define XT_WINI_IRQ        5	/* xt winchester */#define FLOPPY_IRQ         6	/* floppy disk */#define PRINTER_IRQ        7#define AT_WINI_0_IRQ     14	/* at winchester controller 0 */#define AT_WINI_1_IRQ     15	/* at winchester controller 1 *//* Interrupt number to hardware vector. */#define BIOS_VECTOR(irq)	\	(((irq) < 8 ? BIOS_IRQ0_VEC : BIOS_IRQ8_VEC) + ((irq) & 0x07))#define VECTOR(irq)	\	(((irq) < 8 ? IRQ0_VECTOR : IRQ8_VECTOR) + ((irq) & 0x07))#endif /* (CHIP == INTEL) */#endif /* _INTERRUPT_H */