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Add support for handling DRM_EVENT_ATOMIC_HW_DONE events

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Michel Dänzer 2025-07-18 10:50:59 +02:00 • committed by Michel Dänzer
parent 6698a28d3a
commit 5f92bf1568
2 changed files with 17 additions and 1 deletions
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7
xf86drm.h
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@ -770,7 +770,7 @@ extern int drmSetMaster(int fd);
extern int drmDropMaster(int fd);
extern int drmIsMaster(int fd);
#define DRM_EVENT_CONTEXT_VERSION 4
#define DRM_EVENT_CONTEXT_VERSION 5
typedef struct _drmEventContext {
@ -801,6 +801,11 @@ typedef struct _drmEventContext {
uint64_t sequence,
uint64_t ns,
uint64_t user_data);
void (*atomic_hw_done_handler)(int fd,
unsigned int tv_sec,
unsigned int tv_usec,
void *user_data);
} drmEventContext, *drmEventContextPtr;
extern int drmHandleEvent(int fd, drmEventContextPtr evctx);

11
xf86drmMode.c
View file

@ -1036,6 +1036,7 @@ drm_public int drmHandleEvent(int fd, drmEventContextPtr evctx)
struct drm_event *e;
struct drm_event_vblank *vblank;
struct drm_event_crtc_sequence *seq;
struct drm_event_atomic_hw_done *atomic_hw_done;
void *user_data;
/* The DRM read semantics guarantees that we always get only
@ -1088,6 +1089,16 @@ drm_public int drmHandleEvent(int fd, drmEventContextPtr evctx)
seq->time_ns,
seq->user_data);
break;
case DRM_EVENT_ATOMIC_HW_DONE:
atomic_hw_done = (struct drm_event_atomic_hw_done *) e;
user_data = U642VOID (atomic_hw_done->user_data);
if (evctx->version >= 5 && evctx->atomic_hw_done_handler)
evctx->atomic_hw_done_handler(fd,
atomic_hw_done->tv_sec,
atomic_hw_done->tv_usec,
user_data);
break;
default:
break;
}