Used to handle kernel events specific to the Exynos platform. Currently only G2D events are handled.
Signed-off-by: Tobias Jakobi tjakobi@math.uni-bielefeld.de --- exynos/exynos_drm.c | 28 ++++++++++++++++++++++++++++ exynos/exynos_drm.h | 12 ++++++++++++ exynos/exynos_drmif.h | 26 ++++++++++++++++++++++++++ 3 files changed, 66 insertions(+)
diff --git a/exynos/exynos_drm.c b/exynos/exynos_drm.c index c5dd948..3a3d6b1 100644 --- a/exynos/exynos_drm.c +++ b/exynos/exynos_drm.c @@ -42,6 +42,8 @@ #include "exynos_drm.h" #include "exynos_drmif.h"
+#define U642VOID(x) ((void *)(unsigned long)(x)) + /* * Create exynos drm device object. * @@ -374,3 +376,29 @@ exynos_vidi_connection(struct exynos_device *dev, uint32_t connect,
return 0; } + +static void +exynos_handle_vendor(int fd, struct drm_event *e, void *custom_data) +{ + struct drm_exynos_g2d_event *g2d; + struct exynos_event_context *ctx = custom_data; + + switch (e->type) { + case DRM_EXYNOS_G2D_EVENT: + if (ctx->version < 1 || ctx->g2d_event_handler == NULL) + break; + g2d = (struct drm_exynos_g2d_event *)e; + ctx->g2d_event_handler(fd, g2d->cmdlist_no, g2d->tv_sec, + g2d->tv_usec, U642VOID(g2d->user_data)); + break; + + default: + break; + } +} + +drm_public int +exynos_handle_event(struct exynos_device *dev, struct exynos_event_context *ctx) +{ + return drmHandleEvent2(dev->fd, &ctx->base, exynos_handle_vendor, ctx); +} diff --git a/exynos/exynos_drm.h b/exynos/exynos_drm.h index 256c02f..c3af0ac 100644 --- a/exynos/exynos_drm.h +++ b/exynos/exynos_drm.h @@ -157,4 +157,16 @@ struct drm_exynos_g2d_exec { #define DRM_IOCTL_EXYNOS_G2D_EXEC DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec)
+/* EXYNOS specific events */ +#define DRM_EXYNOS_G2D_EVENT 0x80000000 + +struct drm_exynos_g2d_event { + struct drm_event base; + __u64 user_data; + __u32 tv_sec; + __u32 tv_usec; + __u32 cmdlist_no; + __u32 reserved; +}; + #endif diff --git a/exynos/exynos_drmif.h b/exynos/exynos_drmif.h index c7c1d44..626e399 100644 --- a/exynos/exynos_drmif.h +++ b/exynos/exynos_drmif.h @@ -54,6 +54,25 @@ struct exynos_bo { uint32_t name; };
+#define EXYNOS_EVENT_CONTEXT_VERSION 1 + +/* + * Exynos Event Context structure. + * + * @base: base context (for core events). + * @version: version info similar to the one in 'drmEventContext'. + * @g2d_event_handler: handler for G2D events. + */ +struct exynos_event_context { + drmEventContext base; + + int version; + + void (*g2d_event_handler)(int fd, unsigned int cmdlist_no, + unsigned int tv_sec, unsigned int tv_usec, + void *user_data); +}; + /* * device related functions: */ @@ -83,4 +102,11 @@ int exynos_prime_fd_to_handle(struct exynos_device *dev, int fd, int exynos_vidi_connection(struct exynos_device *dev, uint32_t connect, uint32_t ext, void *edid);
+/* + * event handling related functions: + */ +int exynos_handle_event(struct exynos_device *dev, + struct exynos_event_context *ctx); + + #endif /* EXYNOS_DRMIF_H_ */