ev64120int.h
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:1k
- #ifndef IRQ_HANDLER_
- #define IRQ_HANDLER_
- #define INT_CAUSE_MAIN 0
- #define INT_CAUSE_HIGH 1
- #define MAX_CAUSE_REGS 4
- #define MAX_CAUSE_REG_WIDTH 32
- void hook_irq_handler (int int_cause , int bit_num , void *isr_ptr);
- int disable_galileo_irq (int int_cause , int bit_num);
- int enable_galileo_irq (int int_cause , int bit_num);
- extern struct tq_struct irq_handlers[MAX_CAUSE_REGS][MAX_CAUSE_REG_WIDTH];
- /*
- PCI interrupts will come in on either the INTA or
- INTD interrups lines, which are mapped to the #2 and
- #5 interrupt pins of the MIPS. On our boards, they
- all either come in on IntD or they all come in on
- IntA, they aren't mixed. There can be numerous PCI
- interrupts, so we keep a list of the "requested"
- interrupt numbers and go through the list whenever
- we get an IntA/D.
- All PCI interrupts have numbers >= 20 by arbitrary convention. Any
- interrupt < 8 is an interrupt that is maskable on the
- MIPS.
- */
- #define TIMER 4
- #define INTA 2
- #define INTD 5
- #endif /* IRQ_HANDLER_ */