LXR linux/drivers/gpu/drm/nouveau/core/include/core/event.h

   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
  11struct nouveau_eventh {
  12        struct nouveau_event *event;
  13        struct list_head head;
  14        unsigned long flags;
  15        u32 types;
  16        int index;
  17        int (*func)(void *, u32, int);
  18        void *priv;
  19};
  20
  21struct nouveau_event {
  22        void *priv;
  23        int (*check)(struct nouveau_event *, u32 type, int index);
  24        void (*enable)(struct nouveau_event *, int type, int index);
  25        void (*disable)(struct nouveau_event *, int type, int index);
  26
  27        int types_nr;
  28        int index_nr;
  29
  30        spinlock_t list_lock;
  31        struct list_head *list;
  32        spinlock_t refs_lock;
  33        int refs[];
  34};
  35
  36int  nouveau_event_create(int types_nr, int index_nr, struct nouveau_event **);
  37void nouveau_event_destroy(struct nouveau_event **);
  38void nouveau_event_trigger(struct nouveau_event *, u32 types, int index);
  39
  40int  nouveau_event_new(struct nouveau_event *, u32 types, int index,
  41                       int (*func)(void *, u32, int), void *,
  42                       struct nouveau_eventh **);
  43void nouveau_event_ref(struct nouveau_eventh *, struct nouveau_eventh **);
  44void nouveau_event_get(struct nouveau_eventh *);
  45void nouveau_event_put(struct nouveau_eventh *);
  46
  47#endif
  48