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/******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#ifndef __NVRAM_H
#define __NVRAM_H 1
/* data structures */
typedef struct {
unsigned long addr;
long len;
} partition_t;
/* macros */
#define DEBUG(x...)
// #define DEBUG(x...) printf(x);
#ifndef ALIGN
#define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
#endif
#define NULL ((void *)0)
#define PARTITION_HEADER_SIZE 16
/* exported functions */
#define nvram_access_proto(type,name) \
type nvram_read_##name(unsigned int offset); \
void nvram_write_##name(unsigned int offset, type data);
nvram_access_proto(uint8_t, byte)
nvram_access_proto(uint16_t, word)
nvram_access_proto(uint32_t, dword)
nvram_access_proto(uint64_t, qword)
/* nvram.c */
char *get_nvram_buffer(int len);
void free_nvram_buffer(char *buffer);
int nvramlog_printf(const char* fmt, ...);
partition_t get_partition(unsigned int type, char *name);
void erase_nvram(int offset, int len);
int wipe_partition(partition_t partition, int header_only);
partition_t new_nvram_partition(int type, char *name, int len);
int increase_nvram_partition_size(partition_t partition, int newsize);
int clear_nvram_partition(partition_t part);
int delete_nvram_partition(partition_t part);
void reset_nvram(void);
void wipe_nvram(void);
void nvram_debug(void);
void nvram_init(uint32_t store_token, uint32_t fetch_token,
long nv_size, void* nvram_addr);
unsigned int get_nvram_size(void);
/* envvar.c */
char *get_env(partition_t part, char *envvar);
int add_env(partition_t part, char *envvar, char *value);
int del_env(partition_t part, char *envvar);
int set_env(partition_t part, char *envvar, char *value);
#endif
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