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abi: Redefine SOF_ABI_VERSION to allow for backward compatibility 

SOF_ABI_VERSION macro now performs bitshift and addition to compose
final version number out of SOF_ABI_MAJOR, SOF_ABI_MINOR and SOF_ABI_MICRO
components.
Also added SOF_ABI_VERSION_INCOMPATIBLE macro to allow for easier comparison
between FW ABI version and client applications.

Signed-off-by: ArturX Kloniecki <arturx.kloniecki@linux.intel.com>
This commit is contained in:
ArturX Kloniecki 2018-10-08 18:22:23 +02:00
parent ccaff5c87e
commit 62ad4b83e9
1 changed files with 15 additions and 1 deletions
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16
src/include/uapi/abi.h
View File

@ -38,7 +38,21 @@
#define __INCLUDE_UAPI_ABI_H__
/** \brief SOF ABI version number. */
#define SOF_ABI_VERSION 1
#define SOF_ABI_VER(major, minor, micro) \
(((major)<<8)|((minor)<<4)|(micro))
#define SOF_ABI_VERSION_MAJOR(version) (((version)>>8) & 0xff)
#define SOF_ABI_VERSION_MINOR(version) (((version)>>4) & 0xf)
#define SOF_ABI_VERSION_MICRO(version) ((version) & 0xf)
#define SOF_ABI_VERSION_INCOMPATIBLE(sof_ver, client_ver) \
(SOF_ABI_VERSION_MAJOR(sof_ver) != SOF_ABI_VERSION_MAJOR(client_ver) ||\
(SOF_ABI_VERSION_MAJOR(sof_ver) == SOF_ABI_VERSION_MAJOR(client_ver) &&\
SOF_ABI_VERSION_MINOR(sof_ver) != SOF_ABI_VERSION_MINOR(client_ver)))
#define SOF_ABI_MAJOR 1
#define SOF_ABI_MINOR 0
#define SOF_ABI_MICRO 0
#define SOF_ABI_VERSION SOF_ABI_VER(SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_MICRO)
/** \brief SOF ABI magic number "SOF\0". */
#define SOF_ABI_MAGIC 0x00464F53