projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 3ddc7e26 GU |
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 | */ | |
| 10 | #if defined(CONFIG_COLDFIRE) | |
| 11 | #define NR_IRQS 256 | |
| 12 | #elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X) | |
| 13 | #define NR_IRQS 200 | |
| 14 | #elif defined(CONFIG_ATARI) || defined(CONFIG_MAC) | |
| 15 | #define NR_IRQS 72 | |
| 16 | #elif defined(CONFIG_Q40) | |
| 17 | #define NR_IRQS 43 | |
| 18 | #elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU) | |
| 19 | #define NR_IRQS 32 | |
| 20 | #elif defined(CONFIG_APOLLO) | |
| 21 | #define NR_IRQS 24 | |
| 22 | #elif defined(CONFIG_HP300) | |
| 23 | #define NR_IRQS 8 | |
| 49148020 | 24 | #else |
| 3ddc7e26 | 25 | #define NR_IRQS 0 |
| 49148020 | 26 | #endif |
| 3ddc7e26 GU |
27 | |
| 28 | #ifdef CONFIG_MMU | |
| 29 | ||
| 3ddc7e26 GU |
30 | /* |
| 31 | * Interrupt source definitions | |
| 32 | * General interrupt sources are the level 1-7. | |
| 33 | * Adding an interrupt service routine for one of these sources | |
| 34 | * results in the addition of that routine to a chain of routines. | |
| 35 | * Each one is called in succession. Each individual interrupt | |
| 36 | * service routine should determine if the device associated with | |
| 37 | * that routine requires service. | |
| 38 | */ | |
| 39 | ||
| 40 | #define IRQ_SPURIOUS 0 | |
| 41 | ||
| 42 | #define IRQ_AUTO_1 1 /* level 1 interrupt */ | |
| 43 | #define IRQ_AUTO_2 2 /* level 2 interrupt */ | |
| 44 | #define IRQ_AUTO_3 3 /* level 3 interrupt */ | |
| 45 | #define IRQ_AUTO_4 4 /* level 4 interrupt */ | |
| 46 | #define IRQ_AUTO_5 5 /* level 5 interrupt */ | |
| 47 | #define IRQ_AUTO_6 6 /* level 6 interrupt */ | |
| 48 | #define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */ | |
| 49 | ||
| 50 | #define IRQ_USER 8 | |
| 51 | ||
| 3ddc7e26 GU |
52 | /* |
| 53 | * various flags for request_irq() - the Amiga now uses the standard | |
| 54 | * mechanism like all other architectures - IRQF_DISABLED and | |
| 55 | * IRQF_SHARED are your friends. | |
| 56 | */ | |
| 57 | #ifndef MACH_AMIGA_ONLY | |
| 58 | #define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */ | |
| 59 | #define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */ | |
| 60 | #define IRQ_FLG_FAST (0x0004) | |
| 61 | #define IRQ_FLG_SLOW (0x0008) | |
| 62 | #define IRQ_FLG_STD (0x8000) /* internally used */ | |
| 63 | #endif | |
| 64 | ||
| 4936f63c GU |
65 | struct irq_data; |
| 66 | struct irq_chip; | |
| 67 | struct irq_desc; | |
| 68 | extern unsigned int m68k_irq_startup(struct irq_data *data); | |
| 69 | extern unsigned int m68k_irq_startup_irq(unsigned int irq); | |
| 70 | extern void m68k_irq_shutdown(struct irq_data *data); | |
| 71 | extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, | |
| 72 | struct pt_regs *)); | |
| 73 | extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, | |
| 74 | void (*handler)(unsigned int, | |
| 75 | struct pt_regs *)); | |
| 76 | extern void m68k_setup_irq_controller(struct irq_chip *, | |
| 77 | void (*handle)(unsigned int irq, | |
| 78 | struct irq_desc *desc), | |
| 79 | unsigned int irq, unsigned int cnt); | |
| 80 | ||
| 4936f63c GU |
81 | extern unsigned int irq_canonicalize(unsigned int irq); |
| 82 | ||
| 3ddc7e26 GU |
83 | #else |
| 84 | #define irq_canonicalize(irq) (irq) | |
| 85 | #endif /* CONFIG_MMU */ | |
| 86 | ||
| 739735d5 | 87 | asmlinkage void do_IRQ(int irq, struct pt_regs *regs); |
| 4936f63c | 88 | extern atomic_t irq_err_count; |
| 739735d5 | 89 | |
| 3ddc7e26 | 90 | #endif /* _M68K_IRQ_H_ */ |