exynos4: Add open source libsecion.

This libsecion is reverse engineered from the libsecion.so blob and then
written based on the Exynos 5 libion available in AOSP.

Change-Id: Ibe69047c78491e3c7f3173b18fcabdf327fcfbd0
Signed-off-by: angelsl <hidingfromhidden@gmail.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/exynos4/hal/include/secion.h b/exynos4/hal/include/secion.h
new file mode 100644
index 0000000..eb701e9
--- /dev/null
+++ b/exynos4/hal/include/secion.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIB_SECION_H_
+#define _LIB_SECION_H_
+
+#include <unistd.h>
+
+typedef unsigned long ion_phys_addr_t;
+typedef int ion_client;
+typedef int ion_buffer;
+
+enum ION_MSYNC_FLAGS {
+    IMSYNC_DEV_TO_READ = 0,
+    IMSYNC_DEV_TO_WRITE = 1,
+    IMSYNC_DEV_TO_RW = 2,
+    IMSYNC_SYNC_FOR_DEV = 0x10000,
+    IMSYNC_SYNC_FOR_CPU = 0x20000,
+};
+
+struct secion_param {
+    ion_client client;
+    ion_buffer buffer;
+    size_t size;
+    void *memory;
+    ion_phys_addr_t physaddr;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ion_client ion_client_create(void);
+void ion_client_destroy(ion_client client);
+ion_buffer ion_alloc(ion_client client, size_t len, size_t align, unsigned int flags);
+void ion_free(ion_buffer buffer);
+void *ion_map(ion_buffer buffer, size_t len, off_t offset);
+int ion_unmap(void *addr, size_t len);
+int ion_msync(ion_client client, ion_buffer buffer, enum ION_MSYNC_FLAGS flags, size_t size, off_t offset);
+ion_phys_addr_t ion_getphys(ion_client client, ion_buffer buffer);
+int createIONMem(struct secion_param *param, size_t size, unsigned int flags);
+int destroyIONMem(struct secion_param *param);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _LIB_SECION_H_ */