diff options
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/irq.h | 95 |
1 files changed, 62 insertions, 33 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index be73c0a3c19d..2e3d1e5f0408 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h | |||
@@ -36,44 +36,73 @@ typedef void (*irq_flow_handler_t)(unsigned int irq, | |||
36 | /* | 36 | /* |
37 | * IRQ line status. | 37 | * IRQ line status. |
38 | * | 38 | * |
39 | * Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h | 39 | * Bits 0-7 are the same as the IRQF_* bits in linux/interrupt.h |
40 | * | ||
41 | * IRQ_TYPE_NONE - default, unspecified type | ||
42 | * IRQ_TYPE_EDGE_RISING - rising edge triggered | ||
43 | * IRQ_TYPE_EDGE_FALLING - falling edge triggered | ||
44 | * IRQ_TYPE_EDGE_BOTH - rising and falling edge triggered | ||
45 | * IRQ_TYPE_LEVEL_HIGH - high level triggered | ||
46 | * IRQ_TYPE_LEVEL_LOW - low level triggered | ||
47 | * IRQ_TYPE_LEVEL_MASK - Mask to filter out the level bits | ||
48 | * IRQ_TYPE_SENSE_MASK - Mask for all the above bits | ||
49 | * IRQ_TYPE_PROBE - Special flag for probing in progress | ||
50 | * | ||
51 | * Bits which can be modified via irq_set/clear/modify_status_flags() | ||
52 | * IRQ_LEVEL - Interrupt is level type. Will be also | ||
53 | * updated in the code when the above trigger | ||
54 | * bits are modified via set_irq_type() | ||
55 | * IRQ_PER_CPU - Mark an interrupt PER_CPU. Will protect | ||
56 | * it from affinity setting | ||
57 | * IRQ_NOPROBE - Interrupt cannot be probed by autoprobing | ||
58 | * IRQ_NOREQUEST - Interrupt cannot be requested via | ||
59 | * request_irq() | ||
60 | * IRQ_NOAUTOEN - Interrupt is not automatically enabled in | ||
61 | * request/setup_irq() | ||
62 | * IRQ_NO_BALANCING - Interrupt cannot be balanced (affinity set) | ||
63 | * IRQ_MOVE_PCNTXT - Interrupt can be migrated from process context | ||
64 | * IRQ_NESTED_TRHEAD - Interrupt nests into another thread | ||
65 | * | ||
66 | * Deprecated bits. They are kept updated as long as | ||
67 | * CONFIG_GENERIC_HARDIRQS_NO_COMPAT is not set. Will go away soon. These bits | ||
68 | * are internal state of the core code and if you really need to acces | ||
69 | * them then talk to the genirq maintainer instead of hacking | ||
70 | * something weird. | ||
40 | * | 71 | * |
41 | * IRQ types | ||
42 | */ | 72 | */ |
43 | #define IRQ_TYPE_NONE 0x00000000 /* Default, unspecified type */ | 73 | enum { |
44 | #define IRQ_TYPE_EDGE_RISING 0x00000001 /* Edge rising type */ | 74 | IRQ_TYPE_NONE = 0x00000000, |
45 | #define IRQ_TYPE_EDGE_FALLING 0x00000002 /* Edge falling type */ | 75 | IRQ_TYPE_EDGE_RISING = 0x00000001, |
46 | #define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING) | 76 | IRQ_TYPE_EDGE_FALLING = 0x00000002, |
47 | #define IRQ_TYPE_LEVEL_HIGH 0x00000004 /* Level high type */ | 77 | IRQ_TYPE_EDGE_BOTH = (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING), |
48 | #define IRQ_TYPE_LEVEL_LOW 0x00000008 /* Level low type */ | 78 | IRQ_TYPE_LEVEL_HIGH = 0x00000004, |
49 | #define IRQ_TYPE_LEVEL_MASK (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH) | 79 | IRQ_TYPE_LEVEL_LOW = 0x00000008, |
50 | #define IRQ_TYPE_SENSE_MASK 0x0000000f /* Mask of the above */ | 80 | IRQ_TYPE_LEVEL_MASK = (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH), |
51 | 81 | IRQ_TYPE_SENSE_MASK = 0x0000000f, | |
52 | #define IRQ_TYPE_PROBE 0x00000010 /* Probing in progress */ | 82 | |
53 | 83 | IRQ_TYPE_PROBE = 0x00000010, | |
54 | /* Internal flags */ | 84 | |
85 | IRQ_LEVEL = (1 << 8), | ||
86 | IRQ_PER_CPU = (1 << 9), | ||
87 | IRQ_NOPROBE = (1 << 10), | ||
88 | IRQ_NOREQUEST = (1 << 11), | ||
89 | IRQ_NOAUTOEN = (1 << 12), | ||
90 | IRQ_NO_BALANCING = (1 << 13), | ||
91 | IRQ_MOVE_PCNTXT = (1 << 14), | ||
92 | IRQ_NESTED_THREAD = (1 << 15), | ||
55 | 93 | ||
56 | #ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT | 94 | #ifndef CONFIG_GENERIC_HARDIRQS_NO_COMPAT |
57 | #define IRQ_INPROGRESS 0x00000100 /* DEPRECATED */ | 95 | IRQ_INPROGRESS = (1 << 16), |
58 | #define IRQ_REPLAY 0x00000200 /* DEPRECATED */ | 96 | IRQ_REPLAY = (1 << 17), |
59 | #define IRQ_WAITING 0x00000400 /* DEPRECATED */ | 97 | IRQ_WAITING = (1 << 18), |
60 | #define IRQ_DISABLED 0x00000800 /* DEPRECATED */ | 98 | IRQ_DISABLED = (1 << 19), |
61 | #define IRQ_PENDING 0x00001000 /* DEPRECATED */ | 99 | IRQ_PENDING = (1 << 20), |
62 | #define IRQ_MASKED 0x00002000 /* DEPRECATED */ | 100 | IRQ_MASKED = (1 << 21), |
63 | /* DEPRECATED use irq_setaffinity_pending() instead*/ | 101 | IRQ_MOVE_PENDING = (1 << 22), |
64 | #define IRQ_MOVE_PENDING 0x00004000 | 102 | IRQ_AFFINITY_SET = (1 << 23), |
65 | #define IRQ_AFFINITY_SET 0x02000000 /* DEPRECATED */ | 103 | IRQ_WAKEUP = (1 << 24), |
66 | #endif | 104 | #endif |
67 | 105 | }; | |
68 | #define IRQ_LEVEL 0x00008000 /* IRQ level triggered */ | ||
69 | #define IRQ_PER_CPU 0x00010000 /* IRQ is per CPU */ | ||
70 | #define IRQ_NOPROBE 0x00020000 /* IRQ is not valid for probing */ | ||
71 | #define IRQ_NOREQUEST 0x00040000 /* IRQ cannot be requested */ | ||
72 | #define IRQ_NOAUTOEN 0x00080000 /* IRQ will not be enabled on request irq */ | ||
73 | #define IRQ_WAKEUP 0x00100000 /* IRQ triggers system wakeup */ | ||
74 | #define IRQ_NO_BALANCING 0x00400000 /* IRQ is excluded from balancing */ | ||
75 | #define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */ | ||
76 | #define IRQ_NESTED_THREAD 0x10000000 /* IRQ is nested into another, no own handler thread */ | ||
77 | 106 | ||
78 | #define IRQF_MODIFY_MASK \ | 107 | #define IRQF_MODIFY_MASK \ |
79 | (IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \ | 108 | (IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \ |