--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main/nvsio.c Thu Apr 06 20:49:52 2023 +0200
@@ -0,0 +1,139 @@
+/*****************************************************************************
+ * Copyright (C) 2023
+ *
+ * Michiel Broek <mbroek at mbse dot eu>
+ *
+ * This file is part of the ESP32 iotbalkon application.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * mbsePi-apps is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with ThermFerm; see the file COPYING. If not, write to the Free
+ * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *****************************************************************************/
+
+#include "config.h"
+
+#define NVSIO_Namespace "balkon"
+
+static const char *TAG = "nvsio";
+
+
+void nvsio_init(void)
+{
+ esp_err_t err = ESP_OK;
+ nvs_handle_t my_handle;
+
+ err = nvs_open(NVSIO_Namespace, NVS_READWRITE, &my_handle);
+ if (err != ESP_OK) {
+ ESP_LOGE(TAG, "Error (%s) opening NVS handle '%s'", esp_err_to_name(err), NVSIO_Namespace);
+ } else {
+ nvs_commit(my_handle);
+ nvs_close(my_handle);
+ }
+}
+
+
+uint8_t nvsio_read_u8(char *key)
+{
+ nvs_handle_t my_handle;
+ esp_err_t err;
+ uint8_t val = 0;
+
+ if (nvs_open(NVSIO_Namespace, NVS_READWRITE, &my_handle) == ESP_OK) {
+ err = nvs_get_u8(my_handle, key, &val);
+ if (err == ESP_ERR_NVS_NOT_FOUND) {
+ err = nvs_set_u8(my_handle, key, 0);
+ val = 0;
+ nvs_commit(my_handle);
+ ESP_LOGI(TAG, "nvsio_read_u8(%s) created", key);
+ }
+ if (err != ESP_OK) {
+ ESP_LOGE(TAG, "nvsio_read_u8(%s) Error (%s) opening NVS namespace '%s'", key, esp_err_to_name(err), NVSIO_Namespace);
+ }
+ nvs_close(my_handle);
+ }
+
+ return val;
+}
+
+
+void nvsio_write_u8(char *key, uint8_t val)
+{
+ nvs_handle_t my_handle;
+ esp_err_t err;
+ uint8_t tmp;
+
+ if (nvs_open(NVSIO_Namespace, NVS_READWRITE, &my_handle) == ESP_OK) {
+ err = nvs_get_u8(my_handle, key, &tmp);
+ if (err == ESP_ERR_NVS_NOT_FOUND) {
+ nvs_set_u8(my_handle, key, val);
+ nvs_commit(my_handle);
+ ESP_LOGI(TAG, "nvsio_write_u8(%s) created val %02x", key, val);
+ } else if (err == ESP_OK && tmp != val) {
+ nvs_set_u8(my_handle, key, val);
+ nvs_commit(my_handle);
+ ESP_LOGI(TAG, "nvsio_write_u8(%s) updated val %02x", key, val);
+ } else {
+ ESP_LOGI(TAG, "nvsio_write_u8(%s) already val %02x", key, val);
+ }
+ nvs_close(my_handle);
+ }
+}
+
+
+uint32_t nvsio_read_u32(char *key)
+{
+ nvs_handle_t my_handle;
+ esp_err_t err;
+ uint32_t val = 0;
+
+ if (nvs_open(NVSIO_Namespace, NVS_READWRITE, &my_handle) == ESP_OK) {
+ err = nvs_get_u32(my_handle, key, &val);
+ if (err == ESP_ERR_NVS_NOT_FOUND) {
+ err = nvs_set_u32(my_handle, key, 0);
+ val = 0;
+ nvs_commit(my_handle);
+ ESP_LOGI(TAG, "nvsio_read_u32(%s) created", key);
+ }
+ if (err != ESP_OK) {
+ ESP_LOGE(TAG, "nvsio_read_u32(%s) Error (%s) opening NVS namespace '%s'", key, esp_err_to_name(err), NVSIO_Namespace);
+ }
+ nvs_close(my_handle);
+ }
+
+ return val;
+}
+
+
+void nvsio_write_u32(char *key, uint32_t val)
+{
+ nvs_handle_t my_handle;
+ esp_err_t err;
+ uint32_t tmp;
+
+ if (nvs_open(NVSIO_Namespace, NVS_READWRITE, &my_handle) == ESP_OK) {
+ err = nvs_get_u32(my_handle, key, &tmp);
+ if (err == ESP_ERR_NVS_NOT_FOUND) {
+ nvs_set_u32(my_handle, key, val);
+ nvs_commit(my_handle);
+ ESP_LOGI(TAG, "nvsio_write_u32(%s) created val %08lx", key, val);
+ } else if (err == ESP_OK && tmp != val) {
+ nvs_set_u32(my_handle, key, val);
+ nvs_commit(my_handle);
+ ESP_LOGI(TAG, "nvsio_write_u32(%s) updated val %08lx", key, val);
+ } else {
+ ESP_LOGI(TAG, "nvsio_write_u32(%s) already val %08lx", key, val);
+ }
+ nvs_close(my_handle);
+ }
+}
+