| Stuart Menefy | 1efe4ce | 2007-11-30 16:12:36 +0900 | [diff] [blame] | 1 | #ifndef __ASM_SH_BITOPS_IRQ_H |
| 2 | #define __ASM_SH_BITOPS_IRQ_H |
| 3 | |
| 4 | static inline void set_bit(int nr, volatile void *addr) |
| 5 | { |
| 6 | int mask; |
| 7 | volatile unsigned int *a = addr; |
| 8 | unsigned long flags; |
| 9 | |
| 10 | a += nr >> 5; |
| 11 | mask = 1 << (nr & 0x1f); |
| 12 | local_irq_save(flags); |
| 13 | *a |= mask; |
| 14 | local_irq_restore(flags); |
| 15 | } |
| 16 | |
| 17 | static inline void clear_bit(int nr, volatile void *addr) |
| 18 | { |
| 19 | int mask; |
| 20 | volatile unsigned int *a = addr; |
| 21 | unsigned long flags; |
| 22 | |
| 23 | a += nr >> 5; |
| 24 | mask = 1 << (nr & 0x1f); |
| 25 | local_irq_save(flags); |
| 26 | *a &= ~mask; |
| 27 | local_irq_restore(flags); |
| 28 | } |
| 29 | |
| 30 | static inline void change_bit(int nr, volatile void *addr) |
| 31 | { |
| 32 | int mask; |
| 33 | volatile unsigned int *a = addr; |
| 34 | unsigned long flags; |
| 35 | |
| 36 | a += nr >> 5; |
| 37 | mask = 1 << (nr & 0x1f); |
| 38 | local_irq_save(flags); |
| 39 | *a ^= mask; |
| 40 | local_irq_restore(flags); |
| 41 | } |
| 42 | |
| 43 | static inline int test_and_set_bit(int nr, volatile void *addr) |
| 44 | { |
| 45 | int mask, retval; |
| 46 | volatile unsigned int *a = addr; |
| 47 | unsigned long flags; |
| 48 | |
| 49 | a += nr >> 5; |
| 50 | mask = 1 << (nr & 0x1f); |
| 51 | local_irq_save(flags); |
| 52 | retval = (mask & *a) != 0; |
| 53 | *a |= mask; |
| 54 | local_irq_restore(flags); |
| 55 | |
| 56 | return retval; |
| 57 | } |
| 58 | |
| 59 | static inline int test_and_clear_bit(int nr, volatile void *addr) |
| 60 | { |
| 61 | int mask, retval; |
| 62 | volatile unsigned int *a = addr; |
| 63 | unsigned long flags; |
| 64 | |
| 65 | a += nr >> 5; |
| 66 | mask = 1 << (nr & 0x1f); |
| 67 | local_irq_save(flags); |
| 68 | retval = (mask & *a) != 0; |
| 69 | *a &= ~mask; |
| 70 | local_irq_restore(flags); |
| 71 | |
| 72 | return retval; |
| 73 | } |
| 74 | |
| 75 | static inline int test_and_change_bit(int nr, volatile void *addr) |
| 76 | { |
| 77 | int mask, retval; |
| 78 | volatile unsigned int *a = addr; |
| 79 | unsigned long flags; |
| 80 | |
| 81 | a += nr >> 5; |
| 82 | mask = 1 << (nr & 0x1f); |
| 83 | local_irq_save(flags); |
| 84 | retval = (mask & *a) != 0; |
| 85 | *a ^= mask; |
| 86 | local_irq_restore(flags); |
| 87 | |
| 88 | return retval; |
| 89 | } |
| 90 | |
| 91 | #endif /* __ASM_SH_BITOPS_IRQ_H */ |