55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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#include "flash.h"
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#include "nvs_flash.h"
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const char LOGTAG[] = "nvs storage";
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static char flashInits = false;
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void flash_init()
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{
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if (flashInits)
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{
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return;
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}
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esp_err_t err = nvs_flash_init();
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if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ESP_ERROR_CHECK(nvs_flash_init());
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}
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flashInits = 1;
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}
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void flash_init_partition(const char *partitionName)
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{
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ESP_ERROR_CHECK(nvs_flash_init_partition(partitionName));
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}
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void flash_write_byte(const char *partitionName,const char *varName, void *data, unsigned int size)
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{
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nvs_handle_t my_handle;
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nvs_open(partitionName,NVS_READWRITE,&my_handle);
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nvs_set_blob(my_handle,varName,data,size);
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nvs_commit(my_handle);
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nvs_close(my_handle);
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}
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unsigned int flash_read_byte(const char *partitionName,const char *varName, void *data, unsigned int size)
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{
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nvs_handle_t my_handle;
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nvs_open(partitionName,NVS_READONLY,&my_handle);
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nvs_get_blob(my_handle,varName,data,&size);
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nvs_close(my_handle);
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return size;
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}
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void flash_erase_partition(const char *partitionName)
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{
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ESP_ERROR_CHECK(nvs_flash_erase_partition(partitionName));
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}
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void flash_deinit()
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{
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ESP_ERROR_CHECK(nvs_flash_deinit());
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flashInits = 0;
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}
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