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Annotation of qemu/roms/SLOF/lib/libnvram/nvram.h, revision 1.1

1.1     ! root        1: /******************************************************************************
        !             2:  * Copyright (c) 2004, 2008 IBM Corporation
        !             3:  * All rights reserved.
        !             4:  * This program and the accompanying materials
        !             5:  * are made available under the terms of the BSD License
        !             6:  * which accompanies this distribution, and is available at
        !             7:  * http://www.opensource.org/licenses/bsd-license.php
        !             8:  *
        !             9:  * Contributors:
        !            10:  *     IBM Corporation - initial implementation
        !            11:  *****************************************************************************/
        !            12: 
        !            13: #ifndef __NVRAM_H
        !            14: #define __NVRAM_H 1
        !            15: 
        !            16: /* data structures */
        !            17: 
        !            18: typedef struct {
        !            19:        unsigned long addr;
        !            20:        long len;
        !            21: } partition_t;
        !            22: 
        !            23: /* macros */
        !            24: 
        !            25: #define DEBUG(x...)
        !            26: // #define DEBUG(x...) printf(x);
        !            27: 
        !            28: #ifndef ALIGN
        !            29: #define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
        !            30: #endif
        !            31: 
        !            32: #define NULL ((void *)0)
        !            33: 
        !            34: #define PARTITION_HEADER_SIZE 16
        !            35: 
        !            36: /* FIXME this should be done complete and in a more prominent place */
        !            37: #define        __LITTLE_ENDIAN 1234
        !            38: #define        __BIG_ENDIAN    4321
        !            39: #ifdef __i386__
        !            40: #define __BYTE_ORDER __LITTLE_ENDIAN
        !            41: #else
        !            42: #define __BYTE_ORDER __BIG_ENDIAN
        !            43: #endif
        !            44: #if __BYTE_ORDER == __BIG_ENDIAN
        !            45: #define cpu_to_be64(x)  (x)
        !            46: #define be64_to_cpu(x)  (x)
        !            47: #define cpu_to_be32(x)  (x)
        !            48: #define be32_to_cpu(x)  (x)
        !            49: #else
        !            50: #include <byteswap.h>
        !            51: #define cpu_to_be64(x)  bswap_64(x)
        !            52: #define be64_to_cpu(x)  bswap_64(x)
        !            53: #define cpu_to_be32(x)  bswap_32(x)
        !            54: #define be32_to_cpu(x)  bswap_32(x)
        !            55: #endif
        !            56: 
        !            57: /* exported functions */
        !            58: 
        !            59: #define nvram_access_proto(type,name)                  \
        !            60:        type nvram_read_##name(unsigned int offset);            \
        !            61:        void nvram_write_##name(unsigned int offset, type data);
        !            62: 
        !            63: nvram_access_proto(uint8_t,  byte)
        !            64: nvram_access_proto(uint16_t, word)
        !            65: nvram_access_proto(uint32_t, dword)
        !            66: nvram_access_proto(uint64_t, qword)
        !            67: 
        !            68: /* nvram.c */
        !            69: 
        !            70: char *get_nvram_buffer(int len);
        !            71: void free_nvram_buffer(char *buffer);
        !            72: int nvramlog_printf(const char* fmt, ...);
        !            73: partition_t get_partition(unsigned int type, char *name);
        !            74: void erase_nvram(int offset, int len);
        !            75: int wipe_partition(partition_t partition, int header_only);
        !            76: partition_t new_nvram_partition(int type, char *name, int len);
        !            77: int increase_nvram_partition_size(partition_t partition, int newsize);
        !            78: int clear_nvram_partition(partition_t part);
        !            79: int delete_nvram_partition(partition_t part);
        !            80: void reset_nvram(void);
        !            81: void wipe_nvram(void);
        !            82: void nvram_debug(void);
        !            83: 
        !            84: /* envvar.c */
        !            85: char *get_env(partition_t part, char *envvar);
        !            86: int add_env(partition_t part, char *envvar, char *value);
        !            87: int del_env(partition_t part, char *envvar);
        !            88: int set_env(partition_t part, char *envvar, char *value);
        !            89: 
        !            90: #endif

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