Used to handle kernel events specific to the Exynos platform.
Currently only G2D events are handled.
v2: Adapt to container approach.
v3: Add exynos_handle_event() to Exynos symbol test.
Signed-off-by: Tobias Jakobi <tjak...@math.uni-bielefeld.de>
---
exynos/exynos-symbol-check | 1 +
exynos/exynos_drm.c | 28 ++++++++++++++++++++++++++++
exynos/exynos_drm.h | 12 ++++++++++++
exynos/exynos_drmif.h | 26 ++++++++++++++++++++++++++
4 files changed, 67 insertions(+)
diff --git a/exynos/exynos-symbol-check b/exynos/exynos-symbol-check
index 1a1be89..c3ddbe4 100755
--- a/exynos/exynos-symbol-check
+++ b/exynos/exynos-symbol-check
@@ -22,6 +22,7 @@ exynos_device_destroy
exynos_prime_fd_to_handle
exynos_prime_handle_to_fd
exynos_vidi_connection
+exynos_handle_event
g2d_blend
g2d_copy
g2d_copy_with_scale
diff --git a/exynos/exynos_drm.c b/exynos/exynos_drm.c
index df9b8ed..7a400ad 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 *ctx)
+{
+ struct drm_exynos_g2d_event *g2d;
+ struct exynos_event_context *ectx = ctx;
+
+ switch (e->type) {
+ case DRM_EXYNOS_G2D_EVENT:
+ if (ectx->version < 1 || ectx->g2d_event_handler ==
NULL)
+ break;
+ g2d = (struct drm_exynos_g2d_event *)e;
+ ectx->g2d_event_handler(fd, g2d->cmdlist_no,
g2d->tv_sec,
+ g2d->tv_usec,
U642VOID(g2d->user_data));
+ break;
+
+ default:
+ break;
+ }
+}
+
+int
+exynos_handle_event(struct exynos_device *dev, struct exynos_event_context
*ctx)
+{
+ return drmHandleEvent2(dev->fd, &ctx->base, exynos_handle_vendor);
+}
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_ */
--
2.4.9
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