PD#158474: add libdrm_amlogic source code
Change-Id: I2f67b5def9f554920fdae9de20a6cfdf43d6142e
Signed-off-by: Yalong Liu <yalong.liu@amlogic.com>
diff --git a/amlogic_drm.h b/amlogic_drm.h
new file mode 100644
index 0000000..3ce0019
--- /dev/null
+++ b/amlogic_drm.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef _AMLOGIC_DRM_H_
+#define _AMLOGIC_DRM_H_
+
+#include <stdint.h>
+#include "drm.h"
+
+/**
+ * User-desired buffer creation information structure.
+ *
+ * @size: user-desired memory allocation size.
+ * - this size value would be page-aligned internally.
+ * @flags: user request for setting memory type or cache attributes.
+ * @handle: returned a handle to created gem object.
+ * - this handle will be set by gem module of kernel side.
+ */
+struct drm_amlogic_gem_create {
+ uint64_t size;
+ uint32_t flags;
+ uint32_t handle;
+};
+
+/**
+ * A structure for getting buffer offset.
+ *
+ * @handle: a pointer to gem object created.
+ * @pad: just padding to be 64-bit aligned.
+ * @offset: relatived offset value of the memory region allocated.
+ * - this value should be set by user.
+ */
+struct drm_amlogic_gem_map_off {
+ uint32_t handle;
+ uint32_t pad;
+ uint64_t offset;
+};
+
+#define DRM_AMLOGIC_GEM_CREATE 0x00
+#define DRM_AMLOGIC_GEM_MAP_OFFSET 0x01
+
+#define DRM_IOCTL_AMLOGIC_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_AMLOGIC_GEM_CREATE, struct drm_amlogic_gem_create)
+
+#define DRM_IOCTL_AMLOGIC_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
+ DRM_AMLOGIC_GEM_MAP_OFFSET, struct drm_amlogic_gem_map_off)
+
+#endif