54 lines
2.1 KiB
C
Executable file
54 lines
2.1 KiB
C
Executable file
/*
|
|
* Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org>
|
|
*
|
|
* 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; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#include <asm/byteorder.h>
|
|
|
|
#define CFI_HOST_ENDIAN 1
|
|
#define CFI_LITTLE_ENDIAN 2
|
|
#define CFI_BIG_ENDIAN 3
|
|
|
|
#if !defined(CONFIG_MTD_CFI_ADV_OPTIONS) || defined(CONFIG_MTD_CFI_NOSWAP)
|
|
#define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN
|
|
#elif defined(CONFIG_MTD_CFI_LE_BYTE_SWAP)
|
|
#define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN
|
|
#elif defined(CONFIG_MTD_CFI_BE_BYTE_SWAP)
|
|
#define CFI_DEFAULT_ENDIAN CFI_BIG_ENDIAN
|
|
#else
|
|
#error No CFI endianness defined
|
|
#endif
|
|
|
|
#define cfi_default(s) ((s)?:CFI_DEFAULT_ENDIAN)
|
|
#define cfi_be(s) (cfi_default(s) == CFI_BIG_ENDIAN)
|
|
#define cfi_le(s) (cfi_default(s) == CFI_LITTLE_ENDIAN)
|
|
#define cfi_host(s) (cfi_default(s) == CFI_HOST_ENDIAN)
|
|
|
|
#define cpu_to_cfi8(map, x) (x)
|
|
#define cfi8_to_cpu(map, x) (x)
|
|
#define cpu_to_cfi16(map, x) _cpu_to_cfi(16, (map)->swap, (x))
|
|
#define cpu_to_cfi32(map, x) _cpu_to_cfi(32, (map)->swap, (x))
|
|
#define cpu_to_cfi64(map, x) _cpu_to_cfi(64, (map)->swap, (x))
|
|
#define cfi16_to_cpu(map, x) _cfi_to_cpu(16, (map)->swap, (x))
|
|
#define cfi32_to_cpu(map, x) _cfi_to_cpu(32, (map)->swap, (x))
|
|
#define cfi64_to_cpu(map, x) _cfi_to_cpu(64, (map)->swap, (x))
|
|
|
|
#define _cpu_to_cfi(w, s, x) (cfi_host(s)?(x):_swap_to_cfi(w, s, x))
|
|
#define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
|
|
#define _swap_to_cfi(w, s, x) (cfi_be(s)?cpu_to_be##w(x):cpu_to_le##w(x))
|
|
#define _swap_to_cpu(w, s, x) (cfi_be(s)?be##w##_to_cpu(x):le##w##_to_cpu(x))
|