55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* Copyright (C) 2005, Broadcom Corporation
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* Copyright (C) 2006, Felix Fietkau <nbd@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __NVRAM_H
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#define __NVRAM_H
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#include <linux/types.h>
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#include <linux/kernel.h>
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struct nvram_header {
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u32 magic;
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u32 len;
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u32 crc_ver_init; /* 0:7 crc, 8:15 ver, 16:31 sdram_init */
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u32 config_refresh; /* 0:15 sdram_config, 16:31 sdram_refresh */
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u32 config_ncdl; /* ncdl values for memc */
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};
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#define NVRAM_HEADER 0x48534C46 /* 'FLSH' */
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#define NVRAM_VERSION 1
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#define NVRAM_HEADER_SIZE 20
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#define NVRAM_SPACE 0x8000
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#define FLASH_MIN 0x00020000 /* Minimum flash size */
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#define NVRAM_MAX_VALUE_LEN 255
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#define NVRAM_MAX_PARAM_LEN 64
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#define NVRAM_ERR_INV_PARAM -8
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#define NVRAM_ERR_ENVNOTFOUND -9
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extern int nvram_getenv(char *name, char *val, size_t val_len);
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static inline void nvram_parse_macaddr(char *buf, u8 macaddr[6])
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{
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if (strchr(buf, ':'))
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sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
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&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
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&macaddr[5]);
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else if (strchr(buf, '-'))
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sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
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&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
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&macaddr[5]);
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else
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printk(KERN_WARNING "Can not parse mac address: %s\n", buf);
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}
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#endif
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