rolling 20210517

code/components/jomjol_wlan/CMakeLists.txt

@@ -0,0 +1,7 @@
+FILE(GLOB_RECURSE app_sources ${CMAKE_CURRENT_SOURCE_DIR}/*.*)
+
+idf_component_register(SRCS ${app_sources}
+                    INCLUDE_DIRS "."
+                    REQUIRES nvs_flash jomjol_helper)
+
+

code/components/jomjol_wlan/connect_wlan.cpp

@@ -0,0 +1,289 @@
+#include "connect_wlan.h"
+
+#include <string.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/event_groups.h"
+#include "driver/gpio.h"
+#include "esp_system.h"
+#include "esp_wifi.h"
+#include "esp_event.h"
+#include "esp_log.h"
+#include "nvs_flash.h"
+
+#include "lwip/err.h"
+#include "lwip/sys.h"
+
+#include <fstream>
+#include <string>
+#include <vector>
+#include <sstream>
+#include <iostream>
+
+
+
+#define EXAMPLE_ESP_MAXIMUM_RETRY  1000
+
+/* FreeRTOS event group to signal when we are connected*/
+static EventGroupHandle_t s_wifi_event_group;
+
+/* The event group allows multiple bits for each event, but we only care about two events:
+ * - we are connected to the AP with an IP
+ * - we failed to connect after the maximum amount of retries */
+#define WIFI_CONNECTED_BIT BIT0
+#define WIFI_FAIL_BIT      BIT1
+
+static const char *TAG = "wifi station";
+
+static int s_retry_num = 0;
+
+///////////////////////////////////////////////////////////
+#define BLINK_GPIO GPIO_NUM_33
+
+int BlinkDauer;
+int BlinkAnzahl;
+bool BlinkOff;
+bool BlinkIsRunning = false;
+
+std::string hostname = "";
+std::string std_hostname = "watermeter";
+std::string ipadress = "";
+std::string ssid = "";
+
+std::string getIPAddress()
+{
+    return ipadress;
+}
+
+std::string getSSID()
+{
+    return ssid;
+}
+
+
+void task_doBlink(void *pvParameter)
+{
+    ESP_LOGI("BLINK", "Blinken - start");
+    while (BlinkIsRunning)
+    {
+//        ESP_LOGI("BLINK", "Blinken - wait");
+        vTaskDelay(100 / portTICK_PERIOD_MS);
+    }
+
+    BlinkIsRunning = true;
+
+	// Init the GPIO
+    gpio_pad_select_gpio(BLINK_GPIO);
+    /* Set the GPIO as a push/pull output */
+    gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);  
+
+    for (int i = 0; i < BlinkAnzahl; ++i)
+    {
+		if (BlinkAnzahl > 1)
+		{
+	        gpio_set_level(BLINK_GPIO, 1);
+    	    vTaskDelay(BlinkDauer / portTICK_PERIOD_MS);
+		}
+        gpio_set_level(BLINK_GPIO, 0);      
+        vTaskDelay(BlinkDauer / portTICK_PERIOD_MS);
+    }
+
+    if (BlinkOff)
+        gpio_set_level(BLINK_GPIO, 1);
+
+    ESP_LOGI("BLINK", "Blinken - done");
+    BlinkIsRunning = false;
+
+    vTaskDelete(NULL); //Delete this task if it exits from the loop above
+}
+
+void LEDBlinkTask(int _dauer, int _anz, bool _off)
+{
+	BlinkDauer = _dauer;
+	BlinkAnzahl = _anz;
+	BlinkOff = _off;
+
+    xTaskCreate(&task_doBlink, "task_doBlink", configMINIMAL_STACK_SIZE * 8, NULL, tskIDLE_PRIORITY+1, NULL);
+}
+/////////////////////////////////////////////////////////
+
+
+static void event_handler(void* arg, esp_event_base_t event_base,
+                                int32_t event_id, void* event_data)
+{
+    if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
+        LEDBlinkTask(200, 1, true);
+        esp_wifi_connect();
+    } else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
+        if (s_retry_num < EXAMPLE_ESP_MAXIMUM_RETRY) {
+//            LEDBlinkTask(200, 1, true);
+            esp_wifi_connect();
+            s_retry_num++;
+            ESP_LOGI(TAG, "retry to connect to the AP");
+        } else {
+            xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
+        }
+        ESP_LOGI(TAG,"connect to the AP fail");
+    } else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
+        ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
+        ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
+        ipadress = std::string(ip4addr_ntoa((const ip4_addr*) &event->ip_info.ip));
+        s_retry_num = 0;
+        xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
+        LEDBlinkTask(1000, 5, true);
+    }
+}
+
+void strinttoip4(const char *ip, int &a, int &b, int &c, int &d) {
+    std::string zw = std::string(ip);
+    std::stringstream s(zw);
+    char ch; //to temporarily store the '.'
+    s >> a >> ch >> b >> ch >> c >> ch >> d;
+}
+
+
+void wifi_init_sta(const char *_ssid, const char *_password, const char *_hostname, const char *_ipadr, const char *_gw,  const char *_netmask, const char *_dns)
+{
+    ssid = std::string(_ssid);
+
+    s_wifi_event_group = xEventGroupCreate();
+
+    ESP_ERROR_CHECK(esp_netif_init());
+    ESP_ERROR_CHECK(esp_event_loop_create_default());
+
+/////////////////////////////////////////////////////////////////
+
+
+    esp_netif_t *my_sta = esp_netif_create_default_wifi_sta();
+
+    if ((_ipadr != NULL) && (_gw != NULL) && (_netmask != NULL))
+    {
+        ESP_LOGI(TAG, "set IP %s, GW %s, Netmask %s manual", _ipadr, _gw, _netmask);
+        esp_netif_dhcpc_stop(my_sta);
+
+        esp_netif_ip_info_t ip_info;
+        int a, b, c, d;
+        strinttoip4(_ipadr, a, b, c, d);
+        IP4_ADDR(&ip_info.ip, a, b, c, d);
+        strinttoip4(_gw, a, b, c, d);
+        IP4_ADDR(&ip_info.gw, a, b, c, d);
+        strinttoip4(_netmask, a, b, c, d);
+        IP4_ADDR(&ip_info.netmask, a, b, c, d);
+
+        esp_netif_set_ip_info(my_sta, &ip_info);
+    }
+
+    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
+    ESP_ERROR_CHECK(esp_wifi_init(&cfg));
+
+    if (_dns != NULL) {
+        ESP_LOGI(TAG, "set DNS manual");
+        esp_netif_dns_info_t dns_info;
+        ip4_addr_t ip;
+        ip.addr = esp_ip4addr_aton(_dns);
+        ip_addr_set_ip4_u32(&dns_info.ip, ip.addr);
+        ESP_ERROR_CHECK(esp_netif_set_dns_info(my_sta, ESP_NETIF_DNS_MAIN, &dns_info));
+    }
+/////////////////////////////////////////////////////////////////
+
+
+//    esp_netif_create_default_wifi_sta();
+
+//    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
+//    ESP_ERROR_CHECK(esp_wifi_init(&cfg));
+
+
+
+/* 
+////////////////////////////// esp-idf 4.2 //////////////////////////
+    esp_event_handler_instance_t instance_any_id;
+    esp_event_handler_instance_t instance_got_ip;
+    ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
+                                                        ESP_EVENT_ANY_ID,
+                                                        &event_handler,
+                                                        NULL,
+                                                        &instance_any_id));
+    ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
+                                                        IP_EVENT_STA_GOT_IP,
+                                                        &event_handler,
+                                                        NULL,
+                                                        &instance_got_ip));
+////////////////////////// ENDE esp-idf 4.2 ///////////////////////////
+*/
+
+    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL));
+    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL));
+
+    wifi_config_t wifi_config = { };
+
+    strcpy((char*)wifi_config.sta.ssid, (const char*)_ssid);
+    strcpy((char*)wifi_config.sta.password, (const char*)_password);
+
+    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
+    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
+    ESP_ERROR_CHECK(esp_wifi_start() );
+
+    if (_hostname != NULL)
+    {
+        esp_err_t ret = tcpip_adapter_set_hostname(TCPIP_ADAPTER_IF_STA , _hostname);
+        hostname = std::string(_hostname);
+        if(ret != ESP_OK ){
+            ESP_LOGE(TAG,"failed to set hostname:%d",ret);  
+        }
+    }
+
+    ESP_LOGI(TAG, "wifi_init_sta finished.");
+
+    /* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
+     * number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
+    EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
+            WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
+            pdFALSE,
+            pdFALSE,
+            portMAX_DELAY);
+
+    /* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
+     * happened. */
+    if (bits & WIFI_CONNECTED_BIT) {
+        ESP_LOGI(TAG, "connected to ap SSID:%s password:%s",
+                 _ssid, _password);
+    } else if (bits & WIFI_FAIL_BIT) {
+        ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s",
+                 _ssid, _password);
+    } else {
+        ESP_LOGE(TAG, "UNEXPECTED EVENT");
+    }
+
+    /* The event will not be processed after unregister */
+/* 
+////////////////////////////// esp-idf 4.2 //////////////////////////
+    ESP_ERROR_CHECK(esp_event_handler_instance_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, instance_got_ip));
+    ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
+////////////////////////// ENDE esp-idf 4.2 ///////////////////////////
+*/
+
+    ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler));
+    ESP_ERROR_CHECK(esp_event_handler_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler));
+
+
+    vEventGroupDelete(s_wifi_event_group);
+
+/*
+    while (BlinkIsRunning)
+    {
+        vTaskDelay(100 / portTICK_PERIOD_MS);
+    }
+*/
+}
+
+
+void wifi_init_sta(const char *_ssid, const char *_password, const char *_hostname)
+{
+    wifi_init_sta(_ssid, _password, _hostname, NULL, NULL, NULL, NULL);
+}
+
+void wifi_init_sta(const char *_ssid, const char *_password)
+{
+    wifi_init_sta(_ssid, _password, NULL, NULL, NULL, NULL, NULL);
+}
+

code/components/jomjol_wlan/connect_wlan.h

@@ -0,0 +1,16 @@
+#ifndef CONNECT_WLAN_H
+#define CONNECT_WLAN_H
+
+#include <string>
+
+void wifi_init_sta(const char *_ssid, const char *_password, const char *_hostname, const char *_ipadr, const char *_gw,  const char *_netmask, const char *_dns);
+void wifi_init_sta(const char *_ssid, const char *_password, const char *_hostname);
+void wifi_init_sta(const char *_ssid, const char *_password);
+
+std::string getIPAddress();
+std::string getSSID();
+
+extern std::string hostname;
+extern std::string std_hostname;
+
+#endif

code/components/jomjol_wlan/read_wlanini.cpp

@@ -0,0 +1,257 @@
+#include "read_wlanini.h"
+
+#include "Helper.h"
+
+#include "connect_wlan.h"
+
+#include <fstream>
+#include <string>
+#include <vector>
+#include <sstream>
+#include <iostream>
+#include <string.h>
+
+
+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 LoadWlanFromFile(std::string fn, char *&_ssid, char *&_password, char *&_hostname, char *&_ipadr, char *&_gw,  char *&_netmask, char *&_dns)
+{
+    std::string ssid = "";
+    std::string passphrase = "";
+    std::string ipaddress = "";
+    std::string gw = "";
+    std::string netmask = "";
+    std::string dns = "";
+
+    std::string line = "";
+    std::vector<string> zerlegt;
+    hostname = std_hostname;
+
+    FILE* pFile;
+    fn = FormatFileName(fn);
+
+    pFile = OpenFileAndWait(fn.c_str(), "r");
+    printf("file loaded\n");
+
+    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], " ");
+        for (int i = 2; i < zerlegt.size(); ++i)
+            zerlegt[1] = zerlegt[1] + zerlegt[i];
+
+        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 ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "IP")){
+            ipaddress = zerlegt[1];
+            if ((ipaddress[0] == '"') && (ipaddress[ipaddress.length()-1] == '"')){
+                ipaddress = ipaddress.substr(1, ipaddress.length()-2);
+            }
+        }
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "GATEWAY")){
+            gw = zerlegt[1];
+            if ((gw[0] == '"') && (gw[gw.length()-1] == '"')){
+                gw = gw.substr(1, gw.length()-2);
+            }
+        }
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "NETMASK")){
+            netmask = zerlegt[1];
+            if ((netmask[0] == '"') && (netmask[netmask.length()-1] == '"')){
+                netmask = netmask.substr(1, netmask.length()-2);
+            }
+        }
+
+        if ((zerlegt.size() > 1) && (toUpper(zerlegt[0]) == "DNS")){
+            dns = zerlegt[1];
+            if ((dns[0] == '"') && (dns[dns.length()-1] == '"')){
+                dns = dns.substr(1, dns.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;
+    }
+
+    _hostname = new char[hostname.length() + 1];
+    strcpy(_hostname, hostname.c_str());
+
+    _ssid = new char[ssid.length() + 1];
+    strcpy(_ssid, ssid.c_str());
+
+    _password = new char[passphrase.length() + 1];
+    strcpy(_password, passphrase.c_str());
+
+    if (ipaddress.length() > 0)
+    {
+        _ipadr = new char[ipaddress.length() + 1];
+        strcpy(_ipadr, ipaddress.c_str());
+    }
+    else
+        _ipadr = NULL;
+
+    if (gw.length() > 0)
+    {
+        _gw = new char[gw.length() + 1];
+        strcpy(_gw, gw.c_str());
+    }
+    else
+        _gw = NULL;
+
+    if (netmask.length() > 0)
+    {
+        _netmask = new char[netmask.length() + 1];
+        strcpy(_netmask, netmask.c_str());
+    }
+    else
+        _netmask = NULL;
+
+    if (dns.length() > 0)
+    {
+        _dns = new char[dns.length() + 1];
+        strcpy(_dns, dns.c_str());
+    }
+    else
+        _dns = NULL;
+}
+
+
+
+
+bool ChangeHostName(std::string fn, std::string _newhostname)
+{
+    if (_newhostname == hostname)
+        return false;
+
+    string line = "";
+    std::vector<string> zerlegt;
+
+    bool found = false;
+
+    std::vector<string> neuesfile;
+
+    FILE* pFile;
+    fn = FormatFileName(fn);
+    pFile = OpenFileAndWait(fn.c_str(), "r");
+
+    printf("file loaded\n");
+
+    if (pFile == NULL)
+        return false;
+
+    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")){
+            line = "hostname = \"" + _newhostname + "\"\n";
+            found = true;
+        }
+
+        neuesfile.push_back(line);
+
+        if (fgets(zw, 1024, pFile) == NULL)
+        {
+            line = "";
+        }
+        else
+        {
+            line = std::string(zw);
+        }
+    }
+
+    if (!found)
+    {
+        line = "\nhostname = \"" + _newhostname + "\"\n";
+        neuesfile.push_back(line);        
+    }
+
+    fclose(pFile);
+
+    pFile = OpenFileAndWait(fn.c_str(), "w+");
+
+    for (int i = 0; i < neuesfile.size(); ++i)
+    {
+        printf(neuesfile[i].c_str());
+        fputs(neuesfile[i].c_str(), pFile);
+    }
+
+    fclose(pFile);
+
+    printf("*** Update hostname done ***\n");
+
+    return true;
+}
+

code/components/jomjol_wlan/read_wlanini.h

@@ -0,0 +1,11 @@
+#ifndef READ_WLANINI_H
+#define READ_WLANINI_H
+
+#include <string>
+
+void LoadWlanFromFile(std::string fn, char *&_ssid, char *&_password, char *&_hostname, char *&_ipadr, char *&_gw,  char *&_netmask, char *&_dns);
+
+bool ChangeHostName(std::string fn, std::string _newhostname);
+
+
+#endif