95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2012 Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __NVP_H__
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#define __NVP_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include "misc.h"
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#define NVP_AREA_LARGE_KIND 1
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#define NVP_AREA_SMALL_KIND 2
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#define NVP_SMALL_AREA_MAX_CLUSTER 128
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#define NVP_LARGE_AREA_MAX_CLUSTER 256
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#define NVP_AREA_TABLE_SIZE 512
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#define NVP_SECTOR_SIZE 512
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#define NVP_TABLE_SECTOR 16
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#define NVP_DATA_SECTOR_MIN 64
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#define NVP_DATA_SECTOR_MAX 32767
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#define NVP_SECTOR_PER_CLUSTER 16
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#define NVP_CLUSTER_SIZE (NVP_SECTOR_SIZE * NVP_SECTOR_PER_CLUSTER)
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#define NVP_LARGE_AREA_SIZE NVP_CLUSTER_SIZE
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#define NVP_SMALL_AREA_SIZE NVP_SECTOR_SIZE
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struct nvp_zone_info_entry_t
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{
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int node;
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int start; // in 4 unit
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int count; // in 512 unit for kind 2 and in 8192 for kind 1
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int size;
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int res0, res1, res2, res3;
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const char *name;
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};
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struct nvp_area_info_entry_t
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{
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int kind;
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struct nvp_zone_info_entry_t *zone_info;
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int nr_zones;
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int res0, res1, res2, res3;
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const char *name;
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};
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struct nvp_node_info_t
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{
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int area;
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int zone;
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};
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#define NVP_NR_AREAS 16
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extern struct nvp_area_info_entry_t nvp_area_info[NVP_NR_AREAS];
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typedef int (*nvp_read_fn_t)(uint32_t offset, uint32_t size, void *buf);
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int nvp_init(int nvp_size, nvp_read_fn_t read, bool debug);
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bool nvp_is_valid_node(int node);
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struct nvp_node_info_t nvp_get_node_info(int node);
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int nvp_get_node_size(int node);
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const char *nvp_get_node_name(int node);
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const char *nvp_get_area_name(int node);
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int nvp_read_node(int node, int offset, void *buffer, int size);
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int nvp_info(void);
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int nvp_get_cluster_status(int cluster);
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int nvp_set_cluster_status(int cluster, int status);
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int nvp_get_sector_status(int sector);
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int nvp_set_sector_status(int sector, int status);
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int nvp_get_cluster_number(int shadow, int area, int zone, int index);
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int nvp_get_sector_number(int shadow, int area, int zone, int index);
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/* returns amount of read data or -1 */
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int nvp_read_data(int shadow, int area, int zone, int offset, void *buffer, int size);
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#endif /* __NVP_H__ */
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