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/Ethereal-msm8939-beta9/arch/m68k/include/asm/irq.h

https://bitbucket.org/MilosStamenkovic95/etherealos
C Header | 80 lines | 52 code | 11 blank | 17 comment | 6 complexity | 38734d578460251f5d861eb3eb1f20a2 MD5 | raw file
 1#ifndef _M68K_IRQ_H_
 2#define _M68K_IRQ_H_
 3
 4/*
 5 * This should be the same as the max(NUM_X_SOURCES) for all the
 6 * different m68k hosts compiled into the kernel.
 7 * Currently the Atari has 72 and the Amiga 24, but if both are
 8 * supported in the kernel it is better to make room for 72.
 9 * With EtherNAT add-on card on Atari, the highest interrupt
10 * number is 140 so NR_IRQS needs to be 141.
11 */
12#if defined(CONFIG_COLDFIRE)
13#define NR_IRQS 256
14#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
15#define NR_IRQS 200
16#elif defined(CONFIG_ATARI)
17#define NR_IRQS 141
18#elif defined(CONFIG_MAC)
19#define NR_IRQS 72
20#elif defined(CONFIG_Q40)
21#define NR_IRQS	43
22#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
23#define NR_IRQS	32
24#elif defined(CONFIG_APOLLO)
25#define NR_IRQS	24
26#elif defined(CONFIG_HP300)
27#define NR_IRQS	8
28#else
29#define NR_IRQS	0
30#endif
31
32#if defined(CONFIG_M68020) || defined(CONFIG_M68030) || \
33    defined(CONFIG_M68040) || defined(CONFIG_M68060)
34
35/*
36 * Interrupt source definitions
37 * General interrupt sources are the level 1-7.
38 * Adding an interrupt service routine for one of these sources
39 * results in the addition of that routine to a chain of routines.
40 * Each one is called in succession.  Each individual interrupt
41 * service routine should determine if the device associated with
42 * that routine requires service.
43 */
44
45#define IRQ_SPURIOUS	0
46
47#define IRQ_AUTO_1	1	/* level 1 interrupt */
48#define IRQ_AUTO_2	2	/* level 2 interrupt */
49#define IRQ_AUTO_3	3	/* level 3 interrupt */
50#define IRQ_AUTO_4	4	/* level 4 interrupt */
51#define IRQ_AUTO_5	5	/* level 5 interrupt */
52#define IRQ_AUTO_6	6	/* level 6 interrupt */
53#define IRQ_AUTO_7	7	/* level 7 interrupt (non-maskable) */
54
55#define IRQ_USER	8
56
57struct irq_data;
58struct irq_chip;
59struct irq_desc;
60extern unsigned int m68k_irq_startup(struct irq_data *data);
61extern unsigned int m68k_irq_startup_irq(unsigned int irq);
62extern void m68k_irq_shutdown(struct irq_data *data);
63extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
64						      struct pt_regs *));
65extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
66extern void m68k_setup_irq_controller(struct irq_chip *,
67				      void (*handle)(unsigned int irq,
68						     struct irq_desc *desc),
69				      unsigned int irq, unsigned int cnt);
70
71extern unsigned int irq_canonicalize(unsigned int irq);
72
73#else
74#define irq_canonicalize(irq)  (irq)
75#endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */
76
77asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
78extern atomic_t irq_err_count;
79
80#endif /* _M68K_IRQ_H_ */