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 57 struct irq_data; 58 struct irq_chip; 59 struct irq_desc; 60 extern unsigned int m68k_irq_startup(struct irq_data *data); 61 extern unsigned int m68k_irq_startup_irq(unsigned int irq); 62 extern void m68k_irq_shutdown(struct irq_data *data); 63 extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, 64 struct pt_regs *)); 65 extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt); 66 extern 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 71 extern 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 77 asmlinkage void do_IRQ(int irq, struct pt_regs *regs); 78 extern atomic_t irq_err_count; 79 80 #endif /* _M68K_IRQ_H_ */ 81