compatibitly mit esp-idf pure

code/components/connect_wlan/connect_wlan.cpp

@@ -0,0 +1,206 @@
+#include "connect_wlan.h"
+
+
+
+#include <string.h>
+#include "esp_wifi.h"
+#include "esp_event_loop.h"
+#include "freertos/event_groups.h"
+#include "esp_log.h"
+
+#include <fstream>
+#include <string>
+#include <vector>
+
+#include "Helper.h"
+
+
+
+
+static const char *MAIN_TAG = "connect_wlan";
+
+std::string ssid;
+std::string passphrase;
+std::string hostname;
+std::string ipaddress;
+
+std::string std_hostname = "watermeter";
+
+static EventGroupHandle_t wifi_event_group;
+
+
+#define BLINK_GPIO GPIO_NUM_33
+
+
+std::vector<string> ZerlegeZeile(std::string input, std::string _delimiter = "")
+{
+	std::vector<string> Output;
+	std::string delimiter = " =,";
+    if (_delimiter.length() > 0){
+        delimiter = _delimiter;
+    }
+
+	input = trim(input, delimiter);
+	size_t pos = findDelimiterPos(input, delimiter);
+	std::string token;
+	while (pos != std::string::npos) {
+		token = input.substr(0, pos);
+		token = trim(token, delimiter);
+		Output.push_back(token);
+		input.erase(0, pos + 1);
+		input = trim(input, delimiter);
+		pos = findDelimiterPos(input, delimiter);
+	}
+	Output.push_back(input);
+
+	return Output;
+}
+
+
+
+
+void wifi_connect(){
+    wifi_config_t cfg = { };
+    strcpy((char*)cfg.sta.ssid, (const char*)ssid.c_str());
+    strcpy((char*)cfg.sta.password, (const char*)passphrase.c_str());
+    
+    ESP_ERROR_CHECK( esp_wifi_disconnect() );
+    ESP_ERROR_CHECK( esp_wifi_set_config(ESP_IF_WIFI_STA, &cfg) );
+    ESP_ERROR_CHECK( esp_wifi_connect() );
+}
+
+void blinkstatus(int dauer, int _anzahl)
+{
+    gpio_reset_pin(BLINK_GPIO);
+    gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);
+    for (int i = 0; i < _anzahl; ++i)
+    {
+        gpio_set_level(BLINK_GPIO, 0);
+        vTaskDelay(dauer / portTICK_PERIOD_MS);
+        gpio_set_level(BLINK_GPIO, 1);
+        vTaskDelay(dauer / portTICK_PERIOD_MS);          
+    }
+}
+
+static esp_err_t event_handler(void *ctx, system_event_t *event)
+{
+    switch(event->event_id) {
+    case SYSTEM_EVENT_STA_START:
+        blinkstatus(200, 5);
+        wifi_connect();
+        break;
+    case SYSTEM_EVENT_STA_GOT_IP:
+        xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
+        blinkstatus(1000, 3);
+        break;
+    case SYSTEM_EVENT_STA_DISCONNECTED:
+        blinkstatus(200, 5);
+        esp_wifi_connect();
+        xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
+        break;
+    default:
+        break;
+    }
+    return ESP_OK;
+}
+
+void initialise_wifi(std::string _ssid, std::string _passphrase, std::string _hostname)
+{
+    ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL) );
+    wifi_event_group = xEventGroupCreate();  
+    ssid = _ssid;
+    passphrase = _passphrase;
+    hostname = _hostname;
+    esp_log_level_set("wifi", ESP_LOG_NONE); // disable wifi driver logging
+    tcpip_adapter_init();
+    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
+    ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
+    ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
+    ESP_ERROR_CHECK( esp_wifi_start() );
+    esp_err_t ret = tcpip_adapter_set_hostname(TCPIP_ADAPTER_IF_STA , hostname.c_str());
+    if(ret != ESP_OK ){
+      ESP_LOGE(MAIN_TAG,"failed to set hostname:%d",ret);  
+    }
+    xEventGroupWaitBits(wifi_event_group,CONNECTED_BIT,true,true,portMAX_DELAY);
+    tcpip_adapter_ip_info_t ip_info;
+    ESP_ERROR_CHECK(tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &ip_info));
+    ipaddress = std::string(ip4addr_ntoa(&ip_info.ip));
+    printf("IPv4 :  %s\n", ip4addr_ntoa(&ip_info.ip));
+    printf("HostName :  %s\n", hostname.c_str());
+}
+
+
+void LoadWlanFromFile(std::string fn, std::string &_ssid, std::string &_passphrase, std::string &_hostname)
+{
+    string line = "";
+    std::vector<string> zerlegt;
+    _hostname = std_hostname;
+
+    FILE* pFile;
+    fn = FormatFileName(fn);
+    pFile = fopen(fn.c_str(), "r");
+
+    if (pFile == NULL)
+        return;
+
+    char zw[1024];
+    fgets(zw, 1024, pFile);
+    line = std::string(zw);
+
+    while ((line.size() > 0) || !(feof(pFile)))
+    {
+//        printf("%s", line.c_str());
+        zerlegt = ZerlegeZeile(line, "=");
+        zerlegt[0] = trim(zerlegt[0], " ");
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "HOSTNAME")){
+            _hostname = trim(zerlegt[1]);
+            if ((_hostname[0] == '"') && (_hostname[_hostname.length()-1] == '"')){
+                _hostname = _hostname.substr(1, _hostname.length()-2);
+            }
+        }
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "SSID")){
+            _ssid = trim(zerlegt[1]);
+            if ((_ssid[0] == '"') && (_ssid[_ssid.length()-1] == '"')){
+                _ssid = _ssid.substr(1, _ssid.length()-2);
+            }
+        }
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "PASSWORD")){
+            _passphrase = zerlegt[1];
+            if ((_passphrase[0] == '"') && (_passphrase[_passphrase.length()-1] == '"')){
+                _passphrase = _passphrase.substr(1, _passphrase.length()-2);
+            }
+        }
+
+        if (fgets(zw, 1024, pFile) == NULL)
+        {
+            line = "";
+        }
+        else
+        {
+            line = std::string(zw);
+        }
+    }
+
+    fclose(pFile);
+
+    // Check if Hostname was empty in .ini if yes set to std_hostname
+    if(_hostname.length() <= 0){
+        _hostname = std_hostname;
+    }
+}
+
+
+std::string getHostname(){
+    return hostname;
+}
+
+std::string getIPAddress(){
+    return ipaddress;
+}
+
+std::string getSSID(){
+    return ssid;
+}