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)(struct irq_desc *desc), 68 unsigned int irq, unsigned int cnt); 69 70extern unsigned int irq_canonicalize(unsigned int irq); 71 72#else 73#define irq_canonicalize(irq) (irq) 74#endif /* !(CONFIG_M68020 || CONFIG_M68030 || CONFIG_M68040 || CONFIG_M68060) */ 75 76asmlinkage void do_IRQ(int irq, struct pt_regs *regs); 77extern atomic_t irq_err_count; 78 79#endif /* _M68K_IRQ_H_ */ 80