Added convert method to EEPROM to transfer data from partition to nvs (#2841)

* Added convert method to transfer data from partition to nvs

* Could have sworn I changed the return when I made the label

* Empty state should be 0xFF.  Fixed some logging levels

* Set result on success
This commit is contained in:
lbernstone 2019-07-09 10:47:06 -06:00 committed by Me No Dev
parent 87e5787cf7
commit ca7106e97e
3 changed files with 67 additions and 4 deletions

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@ -1,9 +1,9 @@
name=EEPROM
version=1.0
version=1.0.3
author=Ivan Grokhotkov
maintainer=Paolo Becchi <pbecchi@aerobusiness.it>
sentence=Enables reading and writing data to the permanent FLASH storage, up to 4kb.
sentence=Enables reading and writing data a sequential, addressable FLASH storage
paragraph=
category=Data Storage
url=http://arduino.cc/en/Reference/EEPROM
architectures=esp32
architectures=esp32

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@ -25,6 +25,7 @@
#include "EEPROM.h"
#include <nvs.h>
#include <esp_partition.h>
#include <esp_log.h>
EEPROMClass::EEPROMClass(void)
@ -111,7 +112,7 @@ bool EEPROMClass::begin(size_t size) {
log_e("Not enough memory to expand EEPROM!");
return false;
}
memset(key_data, 0, size);
memset(key_data, 0xFF, size);
if(key_size) {
log_i("Expanding EEPROM from %d to %d", key_size, size);
// hold data while key is deleted
@ -214,6 +215,67 @@ uint16_t EEPROMClass::length ()
return _user_defined_size;
}
/*
Convert EEPROM partition into nvs blob
Call convert before you call begin
*/
uint16_t EEPROMClass::convert (bool clear, const char* EEPROMname, const char* nvsname)
{
uint16_t result = 0;
const esp_partition_t* mypart = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, EEPROMname);
if (mypart == NULL) {
log_i("EEPROM partition not found for conversion");
return result;
}
size_t size = mypart->size;
uint8_t* data = (uint8_t*) malloc(size);
if (!data) {
log_e("Not enough memory to convert EEPROM!");
goto exit;
}
if (esp_partition_read (mypart, 0, (void *) data, size) != ESP_OK) {
log_e("Unable to read EEPROM partition");
goto exit;
}
bool empty;
empty = true;
for (int x=0; x<size; x++) {
if (data[x] != 0xFF) {
empty = false;
break;
}
}
if (empty) {
log_i("EEPROM partition is empty, will not convert");
goto exit;
}
nvs_handle handle;
if (nvs_open(nvsname, NVS_READWRITE, &handle) != ESP_OK) {
log_e("Unable to open NVS");
goto exit;
}
esp_err_t err;
err = nvs_set_blob(handle, nvsname, data, size);
if (err != ESP_OK) {
log_e("Unable to add EEPROM data to NVS: %s", esp_err_to_name(err));
goto exit;
}
result = size;
if (clear) {
if (esp_partition_erase_range (mypart, 0, size) != ESP_OK) {
log_w("Unable to clear EEPROM partition");
}
}
exit:
free(data);
return result;
}
/*
Read 'value' from 'address'
*/

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@ -47,6 +47,7 @@ class EEPROMClass {
void end();
uint8_t * getDataPtr();
uint16_t convert(bool clear, const char* EEPROMname = "eeprom", const char* nvsname = "eeprom");
template<typename T>
T &get(int address, T &t) {