Add build system scaffolding and libc headers

1 files changed, 65 insertions, 0 deletions

diff --git a/include/arch/x86_64/sound/sof/abi.h b/include/arch/x86_64/sound/sof/abi.h
new file mode 100644
index 00000000..b3b33960
--- /dev/null
+++ b/include/arch/x86_64/sound/sof/abi.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
+ */
+/*
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+/**
+ * SOF ABI versioning is based on Semantic Versioning where we have a given
+ * MAJOR.MINOR.PATCH version number. See https://semver.org/
+ *
+ * Rules for incrementing or changing version :-
+ *
+ * 1) Increment MAJOR version if you make incompatible API changes. MINOR and
+ *    PATCH should be reset to 0.
+ *
+ * 2) Increment MINOR version if you add backwards compatible features or
+ *    changes. PATCH should be reset to 0.
+ *
+ * 3) Increment PATCH version if you add backwards compatible bug fixes.
+ */
+
+#ifndef __INCLUDE_UAPI_SOUND_SOF_ABI_H__
+#define __INCLUDE_UAPI_SOUND_SOF_ABI_H__
+
+#include <linux/types.h>
+
+/* SOF ABI version major, minor and patch numbers */
+#define SOF_ABI_MAJOR 3
+#define SOF_ABI_MINOR 23
+#define SOF_ABI_PATCH 1
+
+/* SOF ABI version number. Format within 32bit word is MMmmmppp */
+#define SOF_ABI_MAJOR_SHIFT 24
+#define SOF_ABI_MAJOR_MASK  0xff
+#define SOF_ABI_MINOR_SHIFT 12
+#define SOF_ABI_MINOR_MASK  0xfff
+#define SOF_ABI_PATCH_SHIFT 0
+#define SOF_ABI_PATCH_MASK  0xfff
+
+#define SOF_ABI_VER(major, minor, patch)                                       \
+	(((major) << SOF_ABI_MAJOR_SHIFT) | ((minor) << SOF_ABI_MINOR_SHIFT) | \
+	 ((patch) << SOF_ABI_PATCH_SHIFT))
+
+#define SOF_ABI_VERSION_MAJOR(version) \
+	(((version) >> SOF_ABI_MAJOR_SHIFT) & SOF_ABI_MAJOR_MASK)
+#define SOF_ABI_VERSION_MINOR(version) \
+	(((version) >> SOF_ABI_MINOR_SHIFT) & SOF_ABI_MINOR_MASK)
+#define SOF_ABI_VERSION_PATCH(version) \
+	(((version) >> SOF_ABI_PATCH_SHIFT) & SOF_ABI_PATCH_MASK)
+
+#define SOF_ABI_VERSION_INCOMPATIBLE(sof_ver, client_ver) \
+	(SOF_ABI_VERSION_MAJOR((sof_ver)) !=              \
+	 SOF_ABI_VERSION_MAJOR((client_ver)))
+
+#define SOF_ABI_VERSION SOF_ABI_VER(SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH)
+
+/* SOF ABI magic number "SOF\0". */
+#define SOF_ABI_MAGIC 0x00464F53
+/* SOF IPC4 ABI magic number "SOF4". */
+#define SOF_IPC4_ABI_MAGIC 0x34464F53
+
+#endif