| 1 | #ifndef __NVKM_EVENT_H__ |
| 2 | #define __NVKM_EVENT_H__ |
| 3 | |
| 4 | /* return codes from event handlers */ |
| 5 | #define NVKM_EVENT_DROP 0 |
| 6 | #define NVKM_EVENT_KEEP 1 |
| 7 | |
| 8 | /* nouveau_eventh.flags bit #s */ |
| 9 | #define NVKM_EVENT_ENABLE 0 |
| 10 | |
| 11 | struct nouveau_eventh { |
| 12 | struct nouveau_event *event; |
| 13 | struct list_head head; |
| 14 | unsigned long flags; |
| 15 | int index; |
| 16 | int (*func)(void *, int); |
| 17 | void *priv; |
| 18 | }; |
| 19 | |
| 20 | struct nouveau_event { |
| 21 | spinlock_t list_lock; |
| 22 | spinlock_t refs_lock; |
| 23 | |
| 24 | void *priv; |
| 25 | void (*enable)(struct nouveau_event *, int index); |
| 26 | void (*disable)(struct nouveau_event *, int index); |
| 27 | |
| 28 | int index_nr; |
| 29 | struct { |
| 30 | struct list_head list; |
| 31 | int refs; |
| 32 | } index[]; |
| 33 | }; |
| 34 | |
| 35 | int nouveau_event_create(int index_nr, struct nouveau_event **); |
| 36 | void nouveau_event_destroy(struct nouveau_event **); |
| 37 | void nouveau_event_trigger(struct nouveau_event *, int index); |
| 38 | |
| 39 | int nouveau_event_new(struct nouveau_event *, int index, |
| 40 | int (*func)(void *, int), void *, |
| 41 | struct nouveau_eventh **); |
| 42 | void nouveau_event_ref(struct nouveau_eventh *, struct nouveau_eventh **); |
| 43 | void nouveau_event_get(struct nouveau_eventh *); |
| 44 | void nouveau_event_put(struct nouveau_eventh *); |
| 45 | |
| 46 | #endif |
| 47 | |