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hwaccess: add endianness converting deserialization functions

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Add functions like
  `uint32_t read_le32(const void *base, size_t offset);`
Read a 32 bit unsigned from a base with an offset.
Having prototypes and a macro generated implementation makes it easier
to read, understand and spot errors in one of them.

Change-Id: Idde177acf8bc5f94cd046b6539dc31532c98e452
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/31016
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Thomas Heijligen
2022-02-19 22:31:32 +01:00
committed by Nico Huber
parent c456944170
commit 82604bd738
4 changed files with 58 additions and 1 deletions
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13
platform.h
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@ -22,6 +22,7 @@
#ifndef __PLATFORM_H__
#define __PLATFORM_H__ 1
#include <stddef.h>
#include <stdint.h>
/* swap bytes */
@ -100,4 +101,16 @@ uint16_t be_to_cpu16(uint16_t value);
uint32_t be_to_cpu32(uint32_t value);
uint64_t be_to_cpu64(uint64_t value);
/* read value from base at offset in little endian */
uint8_t read_le8 (const void *base, size_t offset);
uint16_t read_le16(const void *base, size_t offset);
uint32_t read_le32(const void *base, size_t offset);
uint64_t read_le64(const void *base, size_t offset);
/* read value from base at offset in big endian */
uint8_t read_be8 (const void *base, size_t offset);
uint16_t read_be16(const void *base, size_t offset);
uint32_t read_be32(const void *base, size_t offset);
uint64_t read_be64(const void *base, size_t offset);
#endif /* !__PLATFORM_H__ */