include/arch/x86/irq/i8259a.h

   1 #ifndef X86_I8259A_H
   2 #define X86_I8259A_H
   3
   4 #define PIC1_COMMAND 0x20
   5 #define PIC1_DATA 0x21
   6 #define PIC2_COMMAND 0xA0
   7 #define PIC2_DATA 0xA1
   8
   9 #define PIC_ICW1_INIT 0x10
  10 #define PIC_ICW1_ICW4 0x1
  11
  12 #define PIC_ICW4_8086 0x1
  13
  14 #define PIC_EOI 0x20
  15
  16 extern void pic_init(int offset1, int offset2);
  17 extern void pic_mask(uint8_t irq);
  18 extern void pic_unmask(uint8_t irq);
  19 extern void pic_mask_all(void);
  20 extern void pic_unmask_all(void);
  21 extern void pic_send_eoi(uint8_t irq);
  22
  23 #endif