a1b77fd589
git grep -l 'u\(8\|16\|32\|64\)_t' | \ xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g" git grep -l 's\(8\|16\|32\|64\)_t' | \ xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g" Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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* Copyright (c) 2019 Laczen
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* Copyright (c) 2019 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __SETTINGS_NVS_H_
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#define __SETTINGS_NVS_H_
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#include <fs/nvs.h>
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#include "settings/settings.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* In the NVS backend, each setting is stored in two NVS entries:
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* 1. setting's name
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* 2. setting's value
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*
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* The NVS entry ID for the setting's value is determined implicitly based on
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* the ID of the NVS entry for the setting's name, once that is found. The
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* difference between name and value ID is constant and equal to
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* NVS_NAME_ID_OFFSET.
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*
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* Setting's name entries start from NVS_NAMECNT_ID + 1. The entry at
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* NVS_NAMECNT_ID is used to store the largest name ID in use.
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*
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* Deleted records will not be found, only the last record will be
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* read.
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*/
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#define NVS_NAMECNT_ID 0x8000
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#define NVS_NAME_ID_OFFSET 0x4000
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struct settings_nvs {
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struct settings_store cf_store;
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struct nvs_fs cf_nvs;
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uint16_t last_name_id;
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const char *flash_dev_name;
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};
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/* register nvs to be a source of settings */
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int settings_nvs_src(struct settings_nvs *cf);
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/* register nvs to be the destination of settings */
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int settings_nvs_dst(struct settings_nvs *cf);
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/* Initialize a nvs backend. */
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int settings_nvs_backend_init(struct settings_nvs *cf);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SETTINGS_NVS_H_ */
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