You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
261 lines
5.3 KiB
261 lines
5.3 KiB
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef _COMMONLIB_ENDIAN_H_
|
|
#define _COMMONLIB_ENDIAN_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
/* Endian agnostic functions working on single byte. */
|
|
|
|
static inline uint8_t read_ble8(const void *src)
|
|
{
|
|
const uint8_t *s = src;
|
|
return *s;
|
|
}
|
|
|
|
static inline uint8_t read_at_ble8(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_ble8(s);
|
|
}
|
|
|
|
static inline void write_ble8(void *dest, uint8_t val)
|
|
{
|
|
*(uint8_t *)dest = val;
|
|
}
|
|
|
|
static inline void write_at_ble8(void *dest, uint8_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_ble8(d, val);
|
|
}
|
|
|
|
/* Big Endian functions. */
|
|
|
|
static inline uint8_t read_be8(const void *src)
|
|
{
|
|
return read_ble8(src);
|
|
}
|
|
|
|
static inline uint8_t read_at_be8(const void *src, size_t offset)
|
|
{
|
|
return read_at_ble8(src, offset);
|
|
}
|
|
|
|
static inline void write_be8(void *dest, uint8_t val)
|
|
{
|
|
write_ble8(dest, val);
|
|
}
|
|
|
|
static inline void write_at_be8(void *dest, uint8_t val, size_t offset)
|
|
{
|
|
write_at_ble8(dest, val, offset);
|
|
}
|
|
|
|
static inline uint16_t read_be16(const void *src)
|
|
{
|
|
const uint8_t *s = src;
|
|
return (((uint16_t)s[0]) << 8) | (((uint16_t)s[1]) << 0);
|
|
}
|
|
|
|
static inline uint16_t read_at_be16(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_be16(s);
|
|
}
|
|
|
|
static inline void write_be16(void *dest, uint16_t val)
|
|
{
|
|
write_be8(dest, val >> 8);
|
|
write_at_be8(dest, val >> 0, sizeof(uint8_t));
|
|
}
|
|
|
|
static inline void write_at_be16(void *dest, uint16_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_be16(d, val);
|
|
}
|
|
|
|
static inline uint32_t read_be32(const void *src)
|
|
{
|
|
const uint8_t *s = src;
|
|
return (((uint32_t)s[0]) << 24) | (((uint32_t)s[1]) << 16) |
|
|
(((uint32_t)s[2]) << 8) | (((uint32_t)s[3]) << 0);
|
|
}
|
|
|
|
static inline uint32_t read_at_be32(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_be32(s);
|
|
}
|
|
|
|
static inline void write_be32(void *dest, uint32_t val)
|
|
{
|
|
write_be16(dest, val >> 16);
|
|
write_at_be16(dest, val >> 0, sizeof(uint16_t));
|
|
}
|
|
|
|
static inline void write_at_be32(void *dest, uint32_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_be32(d, val);
|
|
}
|
|
|
|
static inline uint64_t read_be64(const void *src)
|
|
{
|
|
uint64_t val;
|
|
val = read_be32(src);
|
|
val <<= 32;
|
|
val |= read_at_be32(src, sizeof(uint32_t));
|
|
return val;
|
|
}
|
|
|
|
static inline uint64_t read_at_be64(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_be64(s);
|
|
}
|
|
|
|
static inline void write_be64(void *dest, uint64_t val)
|
|
{
|
|
write_be32(dest, val >> 32);
|
|
write_at_be32(dest, val >> 0, sizeof(uint32_t));
|
|
}
|
|
|
|
static inline void write_at_be64(void *dest, uint64_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_be64(d, val);
|
|
}
|
|
|
|
/* Little Endian functions. */
|
|
|
|
static inline uint8_t read_le8(const void *src)
|
|
{
|
|
return read_ble8(src);
|
|
}
|
|
|
|
static inline uint8_t read_at_le8(const void *src, size_t offset)
|
|
{
|
|
return read_at_ble8(src, offset);
|
|
}
|
|
|
|
static inline void write_le8(void *dest, uint8_t val)
|
|
{
|
|
write_ble8(dest, val);
|
|
}
|
|
|
|
static inline void write_at_le8(void *dest, uint8_t val, size_t offset)
|
|
{
|
|
write_at_ble8(dest, val, offset);
|
|
}
|
|
|
|
static inline uint16_t read_le16(const void *src)
|
|
{
|
|
const uint8_t *s = src;
|
|
return (((uint16_t)s[1]) << 8) | (((uint16_t)s[0]) << 0);
|
|
}
|
|
|
|
static inline uint16_t read_at_le16(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_le16(s);
|
|
}
|
|
|
|
static inline void write_le16(void *dest, uint16_t val)
|
|
{
|
|
write_le8(dest, val >> 0);
|
|
write_at_le8(dest, val >> 8, sizeof(uint8_t));
|
|
}
|
|
|
|
static inline void write_at_le16(void *dest, uint16_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_le16(d, val);
|
|
}
|
|
|
|
static inline uint32_t read_le32(const void *src)
|
|
{
|
|
const uint8_t *s = src;
|
|
return (((uint32_t)s[3]) << 24) | (((uint32_t)s[2]) << 16) |
|
|
(((uint32_t)s[1]) << 8) | (((uint32_t)s[0]) << 0);
|
|
}
|
|
|
|
static inline uint32_t read_at_le32(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_le32(s);
|
|
}
|
|
|
|
static inline void write_le32(void *dest, uint32_t val)
|
|
{
|
|
write_le16(dest, val >> 0);
|
|
write_at_le16(dest, val >> 16, sizeof(uint16_t));
|
|
}
|
|
|
|
static inline void write_at_le32(void *dest, uint32_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_le32(d, val);
|
|
}
|
|
|
|
static inline uint64_t read_le64(const void *src)
|
|
{
|
|
uint64_t val;
|
|
val = read_at_le32(src, sizeof(uint32_t));
|
|
val <<= 32;
|
|
val |= read_le32(src);
|
|
return val;
|
|
}
|
|
|
|
static inline uint64_t read_at_le64(const void *src, size_t offset)
|
|
{
|
|
const uint8_t *s = src;
|
|
s += offset;
|
|
return read_le64(s);
|
|
}
|
|
|
|
static inline void write_le64(void *dest, uint64_t val)
|
|
{
|
|
write_le32(dest, val >> 0);
|
|
write_at_le32(dest, val >> 32, sizeof(uint32_t));
|
|
}
|
|
|
|
static inline void write_at_le64(void *dest, uint64_t val, size_t offset)
|
|
{
|
|
uint8_t *d = dest;
|
|
d += offset;
|
|
write_le64(d, val);
|
|
}
|
|
|
|
static inline void zero_n(void *dest, size_t n)
|
|
{
|
|
memset(dest, 0, n);
|
|
}
|
|
|
|
#endif
|