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view src/intr.h @ 35:06172322fb76

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- made interrupt number - irq mapping macros public in intr.h - disabled the interrupts in various vga driver functions
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 09 Jun 2011 05:09:49 +0300
parents 9939a6d7a45a
children f65b348780e3
line source
1 #ifndef INTR_H_
2 #define INTR_H_
3
4 #include <inttypes.h>
5 #include "asmops.h"
6
7 /* offset used to remap IRQ numbers (+32) */
8 #define IRQ_OFFSET 32
9 /* conversion macros between IRQ and interrupt numbers */
10 #define IRQ_TO_INTR(x) ((x) + IRQ_OFFSET)
11 #define INTR_TO_IRQ(x) ((x) - IRQ_OFFSET)
12 /* checks whether a particular interrupt is an remapped IRQ */
13 #define IS_IRQ(n) ((n) >= IRQ_OFFSET && (n) < IRQ_OFFSET + 16)
14
15
16 typedef void (*intr_func_t)(int, uint32_t);
17
18
19 void init_intr(void);
20
21 void interrupt(int intr_num, intr_func_t func);
22
23 /* defined in intr-asm.S */
24 int get_intr_state(void);
25 void set_intr_state(int s);
26
27 #endif /* INTR_H_ */