/* * NVRAM variable manipulation * * Copyright (C) 1999-2012, Broadcom Corporation * * Unless you and Broadcom execute a separate written software license * agreement governing use of this software, this software is licensed to you * under the terms of the GNU General Public License version 2 (the "GPL"), * available at http://www.broadcom.com/licenses/GPLv2.php, with the * following added to such license: * * As a special exception, the copyright holders of this software give you * permission to link this software with independent modules, and to copy and * distribute the resulting executable under terms of your choice, provided that * you also meet, for each linked independent module, the terms and conditions of * the license of that module. An independent module is a module which is not * derived from this software. The special exception does not apply to any * modifications of the software. * * Notwithstanding the above, under no circumstances may you combine this * software in any way with any other Broadcom software provided under a license * other than the GPL, without Broadcom's express prior written consent. * * $Id: bcmnvram.h 288000 2011-10-05 19:05:16Z $ */ #ifndef _bcmnvram_h_ #define _bcmnvram_h_ #ifndef _LANGUAGE_ASSEMBLY #include <typedefs.h> #include <bcmdefs.h> struct nvram_header { uint32 magic; uint32 len; uint32 crc_ver_init; uint32 config_refresh; uint32 config_ncdl; }; struct nvram_tuple { char *name; char *value; struct nvram_tuple *next; }; extern char *nvram_default_get(const char *name); extern int nvram_init(void *sih); extern int nvram_append(void *si, char *vars, uint varsz); extern void nvram_get_global_vars(char **varlst, uint *varsz); extern int nvram_reset(void *sih); extern void nvram_exit(void *sih); extern char * nvram_get(const char *name); extern int nvram_resetgpio_init(void *sih); static INLINE char * nvram_safe_get(const char *name) { char *p = nvram_get(name); return p ? p : ""; } static INLINE int nvram_match(char *name, char *match) { const char *value = nvram_get(name); return (value && !strcmp(value, match)); } static INLINE int nvram_invmatch(char *name, char *invmatch) { const char *value = nvram_get(name); return (value && strcmp(value, invmatch)); } extern int nvram_set(const char *name, const char *value); extern int nvram_unset(const char *name); extern int nvram_commit(void); extern int nvram_getall(char *nvram_buf, int count); uint8 nvram_calc_crc(struct nvram_header * nvh); #endif #define NVRAM_SOFTWARE_VERSION "1" #define NVRAM_MAGIC 0x48534C46 #define NVRAM_CLEAR_MAGIC 0x0 #define NVRAM_INVALID_MAGIC 0xFFFFFFFF #define NVRAM_VERSION 1 #define NVRAM_HEADER_SIZE 20 #define NVRAM_SPACE 0x8000 #define NVRAM_MAX_VALUE_LEN 255 #define NVRAM_MAX_PARAM_LEN 64 #define NVRAM_CRC_START_POSITION 9 #define NVRAM_CRC_VER_MASK 0xffffff00 #define NVRAM_START_COMPRESSED 0x400 #define NVRAM_START 0x1000 #define BCM_JUMBO_NVRAM_DELIMIT '\n' #define BCM_JUMBO_START "Broadcom Jumbo Nvram file" #endif