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Diffstat (limited to 'package/unvram/src/nvram.h')
| -rw-r--r-- | package/unvram/src/nvram.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/package/unvram/src/nvram.h b/package/unvram/src/nvram.h deleted file mode 100644 index e3d64613d..000000000 --- a/package/unvram/src/nvram.h +++ /dev/null @@ -1,123 +0,0 @@ -/* - * NVRAM variable manipulation - * - * Copyright 2007, Broadcom Corporation - * Copyright 2009, OpenWrt.org - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * - */ - -#ifndef _nvram_h_ -#define _nvram_h_ - -#include <stdint.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <linux/limits.h> - -#include "sdinitvals.h" - - -struct nvram_header { - uint32_t magic; - uint32_t len; - uint32_t crc_ver_init; /* 0:7 crc, 8:15 ver, 16:31 sdram_init */ - uint32_t config_refresh; /* 0:15 sdram_config, 16:31 sdram_refresh */ - uint32_t config_ncdl; /* ncdl values for memc */ -} __attribute__((__packed__)); - -struct nvram_tuple { - char *name; - char *value; - struct nvram_tuple *next; -}; - -struct nvram_handle { - int fd; - char *mmap; - unsigned long length; - struct nvram_tuple *nvram_hash[257]; - struct nvram_tuple *nvram_dead; -}; - -typedef struct nvram_handle nvram_handle_t; -typedef struct nvram_header nvram_header_t; -typedef struct nvram_tuple nvram_tuple_t; - - -/* Get nvram header. */ -nvram_header_t * nvram_header(nvram_handle_t *h); - -/* Set the value of an NVRAM variable */ -int nvram_set(nvram_handle_t *h, const char *name, const char *value); - -/* Get the value of an NVRAM variable. */ -char * nvram_get(nvram_handle_t *h, const char *name); - -/* Unset the value of an NVRAM variable. */ -int nvram_unset(nvram_handle_t *h, const char *name); - -/* Get all NVRAM variables. */ -nvram_tuple_t * nvram_getall(nvram_handle_t *h); - -/* Regenerate NVRAM. */ -int nvram_commit(nvram_handle_t *h); - -/* Open NVRAM and obtain a handle. */ -nvram_handle_t * nvram_open(const char *file, int rdonly); - -/* Close NVRAM and free memory. */ -int nvram_close(nvram_handle_t *h); - -/* Get the value of an NVRAM variable in a safe way, use "" instead of NULL. */ -#define nvram_safe_get(h, name) (nvram_get(h, name) ? : "") - -/* Computes a crc8 over the input data. */ -uint8_t hndcrc8 (uint8_t * pdata, uint32_t nbytes, uint8_t crc); - -/* Returns the crc value of the nvram. */ -uint8_t nvram_calc_crc(nvram_header_t * nvh); - -/* Determine NVRAM device node. */ -char * nvram_find_mtd(void); - -/* Copy NVRAM contents to staging file. */ -int nvram_to_staging(void); - -/* Copy staging file to NVRAM device. */ -int staging_to_nvram(void); - -/* Check NVRAM staging file. */ -char * nvram_find_staging(void); - - -/* Staging file for NVRAM */ -#define NVRAM_STAGING "/tmp/.nvram" -#define NVRAM_RO 1 -#define NVRAM_RW 0 - -/* Helper macros */ -#define NVRAM_ARRAYSIZE(a) sizeof(a)/sizeof(a[0]) -#define NVRAM_ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) - -/* NVRAM constants */ -#define NVRAM_SPACE 0x8000 -#define NVRAM_START(x) x - NVRAM_SPACE -#define NVRAM_MAGIC 0x48534C46 /* 'FLSH' */ -#define NVRAM_VERSION 1 - -#define NVRAM_CRC_START_POSITION 9 /* magic, len, crc8 to be skipped */ - - -#endif /* _nvram_h_ */ |