Files
squeezelite-esp32/main/nvs_utilities.c
2019-10-02 12:16:10 -04:00

255 lines
7.4 KiB
C

#include "nvs_utilities.h"
#include <stdio.h>
#include <string.h>
#include "esp_system.h"
#include "esp_log.h"
#include "esp_console.h"
#include "esp_vfs_dev.h"
#include "driver/uart.h"
#include "linenoise/linenoise.h"
#include "argtable3/argtable3.h"
#include "cmd_decl.h"
#include "esp_vfs_fat.h"
#include "nvs.h"
#include "nvs_flash.h"
extern char current_namespace[];
static const char * TAG = "platform_esp32";
bool isNameValid(char * key){
bool bFound=false;
nvs_handle nvs;
esp_err_t err;
int8_t val=0;
err = nvs_open(current_namespace, NVS_READONLY, &nvs);
if (err != ESP_OK) {
ESP_LOGE(TAG,"Error opening nvs storage for namespace %s",current_namespace);
return false;
}
err = nvs_get_i8(nvs, key, &val);
if(err==ESP_OK || err== ESP_ERR_NVS_INVALID_LENGTH){
bFound=true;
}
else {
ESP_LOGD(TAG,"Search for key %s in namespace %s returned %#08X",key,current_namespace,err);
}
// nvs_iterator_t it = nvs_entry_find(NVS_DEFAULT_PART_NAME, current_namespace, NVS_TYPE_ANY);
// while (it != NULL) {
// nvs_entry_info_t info;
// nvs_entry_info(it, &info);
// it = nvs_entry_next(it);
// if(!strcmp(info.key,key)){
// bFound=true;
// }
// printf("key '%s', type '%d' \n", info.key, info.type);
// };
// // Note: no need to release iterator obtained from nvs_entry_find function when
// // nvs_entry_find or nvs_entry_next function return NULL, indicating no other
// // element for specified criteria was found.
nvs_close(nvs);
return bFound;
}
esp_err_t store_nvs_value(nvs_type_t type, const char *key, void * data) {
if (type == NVS_TYPE_BLOB)
return ESP_ERR_NVS_TYPE_MISMATCH;
return store_nvs_value_len(type, key, data,0);
}
esp_err_t store_nvs_value_len(nvs_type_t type, const char *key, void * data,
size_t data_len) {
esp_err_t err;
nvs_handle nvs;
if (type == NVS_TYPE_ANY) {
return ESP_ERR_NVS_TYPE_MISMATCH;
}
err = nvs_open(current_namespace, NVS_READWRITE, &nvs);
if (err != ESP_OK) {
return err;
}
if (type == NVS_TYPE_I8) {
err = nvs_set_i8(nvs, key, *(int8_t *) data);
} else if (type == NVS_TYPE_U8) {
err = nvs_set_u8(nvs, key, *(uint8_t *) data);
} else if (type == NVS_TYPE_I16) {
err = nvs_set_i16(nvs, key, *(int16_t *) data);
} else if (type == NVS_TYPE_U16) {
err = nvs_set_u16(nvs, key, *(uint16_t *) data);
} else if (type == NVS_TYPE_I32) {
err = nvs_set_i32(nvs, key, *(int32_t *) data);
} else if (type == NVS_TYPE_U32) {
err = nvs_set_u32(nvs, key, *(uint32_t *) data);
} else if (type == NVS_TYPE_I64) {
err = nvs_set_i64(nvs, key, *(int64_t *) data);
} else if (type == NVS_TYPE_U64) {
err = nvs_set_u64(nvs, key, *(uint64_t *) data);
} else if (type == NVS_TYPE_STR) {
err = nvs_set_str(nvs, key, data);
} else if (type == NVS_TYPE_BLOB) {
err = nvs_set_blob(nvs, key, (void *) data, data_len);
}
if (err == ESP_OK) {
err = nvs_commit(nvs);
if (err == ESP_OK) {
ESP_LOGI(TAG, "Value stored under key '%s'", key);
}
}
nvs_close(nvs);
return err;
}
void * get_nvs_value_alloc_default(nvs_type_t type, const char *key, void * default_value, size_t blob_size) {
void * current_value = get_nvs_value_alloc(type, key);
if(current_value == NULL && default_value != NULL){
if(type == NVS_TYPE_BLOB && blob_size == 0){
ESP_LOGE(TAG,"Unable to store default value for BLOB object' blob size was not specified");
return NULL;
}
else {
esp_err_t err = store_nvs_value_len(type, key, default_value, blob_size);
if(err!=ESP_OK){
ESP_LOGE(TAG,"Unable to store default nvs value. Error: %s",esp_err_to_name(err));
return NULL;
}
}
}
if(current_value == NULL){
current_value = get_nvs_value_alloc(type, key);
}
return current_value;
}
void * get_nvs_value_alloc(nvs_type_t type, const char *key) {
nvs_handle nvs;
esp_err_t err;
void * value=NULL;
err = nvs_open(current_namespace, NVS_READONLY, &nvs);
if (err != ESP_OK) {
ESP_LOGE(TAG,"Could not open the nvs storage.");
return NULL;
}
if (type == NVS_TYPE_I8) {
value=malloc(sizeof(int8_t));
err = nvs_get_i8(nvs, key, (int8_t *) value);
} else if (type == NVS_TYPE_U8) {
value=malloc(sizeof(uint8_t));
err = nvs_get_u8(nvs, key, (uint8_t *) value);
} else if (type == NVS_TYPE_I16) {
value=malloc(sizeof(int16_t));
err = nvs_get_i16(nvs, key, (int16_t *) value);
} else if (type == NVS_TYPE_U16) {
value=malloc(sizeof(uint16_t));
err = nvs_get_u16(nvs, key, (uint16_t *) value);
} else if (type == NVS_TYPE_I32) {
value=malloc(sizeof(int32_t));
err = nvs_get_i32(nvs, key, (int32_t *) value);
} else if (type == NVS_TYPE_U32) {
value=malloc(sizeof(uint32_t));
err = nvs_get_u32(nvs, key, (uint32_t *) value);
} else if (type == NVS_TYPE_I64) {
value=malloc(sizeof(int64_t));
err = nvs_get_i64(nvs, key, (int64_t *) value);
} else if (type == NVS_TYPE_U64) {
value=malloc(sizeof(uint64_t));
err = nvs_get_u64(nvs, key, (uint64_t *) value);
} else if (type == NVS_TYPE_STR) {
size_t len=0;
err = nvs_get_str(nvs, key, NULL, &len);
if (err == ESP_OK) {
value=malloc(len);
err = nvs_get_str(nvs, key, value, &len);
}
} else if (type == NVS_TYPE_BLOB) {
size_t len;
err = nvs_get_blob(nvs, key, NULL, &len);
if (err == ESP_OK) {
value=malloc(len+1);
err = nvs_get_blob(nvs, key, value, &len);
}
}
if(err!=ESP_OK){
ESP_LOGD(TAG,"Value not found for key %s",key);
if(value!=NULL)
free(value);
value=NULL;
}
nvs_close(nvs);
return value;
}
esp_err_t get_nvs_value(nvs_type_t type, const char *key, void*value, const uint8_t buf_size) {
nvs_handle nvs;
esp_err_t err;
err = nvs_open(current_namespace, NVS_READONLY, &nvs);
if (err != ESP_OK) {
return err;
}
if (type == NVS_TYPE_I8) {
err = nvs_get_i8(nvs, key, (int8_t *) value);
} else if (type == NVS_TYPE_U8) {
err = nvs_get_u8(nvs, key, (uint8_t *) value);
} else if (type == NVS_TYPE_I16) {
err = nvs_get_i16(nvs, key, (int16_t *) value);
} else if (type == NVS_TYPE_U16) {
err = nvs_get_u16(nvs, key, (uint16_t *) value);
} else if (type == NVS_TYPE_I32) {
err = nvs_get_i32(nvs, key, (int32_t *) value);
} else if (type == NVS_TYPE_U32) {
err = nvs_get_u32(nvs, key, (uint32_t *) value);
} else if (type == NVS_TYPE_I64) {
err = nvs_get_i64(nvs, key, (int64_t *) value);
} else if (type == NVS_TYPE_U64) {
err = nvs_get_u64(nvs, key, (uint64_t *) value);
} else if (type == NVS_TYPE_STR) {
size_t len;
if ((err = nvs_get_str(nvs, key, NULL, &len)) == ESP_OK) {
if (len > buf_size) {
//ESP_LOGE("Error reading value for %s. Buffer size: %d, Value Length: %d", key, buf_size, len);
err = ESP_FAIL;
} else {
err = nvs_get_str(nvs, key, value, &len);
}
}
} else if (type == NVS_TYPE_BLOB) {
size_t len;
if ((err = nvs_get_blob(nvs, key, NULL, &len)) == ESP_OK) {
if (len > buf_size) {
//ESP_LOGE("Error reading value for %s. Buffer size: %d, Value Length: %d",
// key, buf_size, len);
err = ESP_FAIL;
} else {
err = nvs_get_blob(nvs, key, value, &len);
}
}
}
nvs_close(nvs);
return err;
}
esp_err_t erase_nvs(const char *key)
{
nvs_handle nvs;
esp_err_t err = nvs_open(current_namespace, NVS_READWRITE, &nvs);
if (err == ESP_OK) {
err = nvs_erase_key(nvs, key);
if (err == ESP_OK) {
err = nvs_commit(nvs);
if (err == ESP_OK) {
ESP_LOGI(TAG, "Value with key '%s' erased", key);
}
}
nvs_close(nvs);
}
return err;
}