gpio: adp5588-gpio: support interrupt controller
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / asm-generic / irqflags.h
blob1f40d0024cf381d5c380f2a1c19b5c5ce3ae24e1
1 #ifndef __ASM_GENERIC_IRQFLAGS_H
2 #define __ASM_GENERIC_IRQFLAGS_H
4 /*
5 * All architectures should implement at least the first two functions,
6 * usually inline assembly will be the best way.
7 */
8 #ifndef ARCH_IRQ_DISABLED
9 #define ARCH_IRQ_DISABLED 0
10 #define ARCH_IRQ_ENABLED 1
11 #endif
13 /* read interrupt enabled status */
14 #ifndef arch_local_save_flags
15 unsigned long arch_local_save_flags(void);
16 #endif
18 /* set interrupt enabled status */
19 #ifndef arch_local_irq_restore
20 void arch_local_irq_restore(unsigned long flags);
21 #endif
23 /* get status and disable interrupts */
24 #ifndef arch_local_irq_save
25 static inline unsigned long arch_local_irq_save(void)
27 unsigned long flags;
28 flags = arch_local_save_flags();
29 arch_local_irq_restore(ARCH_IRQ_DISABLED);
30 return flags;
32 #endif
34 /* test flags */
35 #ifndef arch_irqs_disabled_flags
36 static inline int arch_irqs_disabled_flags(unsigned long flags)
38 return flags == ARCH_IRQ_DISABLED;
40 #endif
42 /* unconditionally enable interrupts */
43 #ifndef arch_local_irq_enable
44 static inline void arch_local_irq_enable(void)
46 arch_local_irq_restore(ARCH_IRQ_ENABLED);
48 #endif
50 /* unconditionally disable interrupts */
51 #ifndef arch_local_irq_disable
52 static inline void arch_local_irq_disable(void)
54 arch_local_irq_restore(ARCH_IRQ_DISABLED);
56 #endif
58 /* test hardware interrupt enable bit */
59 #ifndef arch_irqs_disabled
60 static inline int arch_irqs_disabled(void)
62 return arch_irqs_disabled_flags(arch_local_save_flags());
64 #endif
66 #endif /* __ASM_GENERIC_IRQFLAGS_H */