esp-protocols/esp_modem/examples/simple_cxx_client/main/simple_client.cpp

/* PPPoS Client Example

   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "esp_netif.h"
#include "esp_netif_ppp.h"
#include "mqtt_client.h"
#include "esp_log.h"
#include "cxx_include/esp_modem_dte.hpp"
#include "esp_modem_config.h"
#include "cxx_include/esp_modem_api.hpp"
#include <iostream>

#define BROKER_URL "mqtt://mqtt.eclipseprojects.io"

static const char *TAG = "pppos_example";
static EventGroupHandle_t event_group = NULL;
static const int CONNECT_BIT = BIT0;
static const int STOP_BIT = BIT1;
static const int GOT_DATA_BIT = BIT2;

static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data)
{
    esp_mqtt_event_handle_t event = (esp_mqtt_event_handle_t)event_data;
    esp_mqtt_client_handle_t client = event->client;
    int msg_id;
    switch (event->event_id) {
    case MQTT_EVENT_CONNECTED:
        ESP_LOGE(TAG, "MQTT_EVENT_CONNECTED");
        xEventGroupSetBits(event_group, GOT_DATA_BIT);
//
//        msg_id = esp_mqtt_client_subscribe(client, "/topic/esp-pppos", 0);
//        ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
        break;
    case MQTT_EVENT_DISCONNECTED:
        ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
        break;
    case MQTT_EVENT_SUBSCRIBED:
        ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
        msg_id = esp_mqtt_client_publish(client, "/topic/esp-pppos", "esp32-pppos", 0, 0, 0);
        ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
        break;
    case MQTT_EVENT_UNSUBSCRIBED:
        ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
        break;
    case MQTT_EVENT_PUBLISHED:
        ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
        break;
    case MQTT_EVENT_DATA:
        ESP_LOGI(TAG, "MQTT_EVENT_DATA");
        printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
        printf("DATA=%.*s\r\n", event->data_len, event->data);
        xEventGroupSetBits(event_group, GOT_DATA_BIT);
        break;
    case MQTT_EVENT_ERROR:
        ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
        break;
    default:
        ESP_LOGI(TAG, "MQTT other event id: %d", event->event_id);
        break;
    }
}

static void on_ppp_changed(void *arg, esp_event_base_t event_base,
                           int32_t event_id, void *event_data)
{
    ESP_LOGI(TAG, "PPP state changed event %d", event_id);
    if (event_id == NETIF_PPP_ERRORUSER) {
        /* User interrupted event from esp-netif */
        esp_netif_t *netif = (esp_netif_t *)event_data;
        ESP_LOGI(TAG, "User interrupted event from netif:%p", netif);
    }
}


static void on_ip_event(void *arg, esp_event_base_t event_base,
                        int32_t event_id, void *event_data)
{
    ESP_LOGD(TAG, "IP event! %d", event_id);
    if (event_id == IP_EVENT_PPP_GOT_IP) {
        esp_netif_dns_info_t dns_info;

        ip_event_got_ip_t *event = (ip_event_got_ip_t *)event_data;
        esp_netif_t *netif = event->esp_netif;

        ESP_LOGI(TAG, "Modem Connect to PPP Server");
        ESP_LOGI(TAG, "~~~~~~~~~~~~~~");
        ESP_LOGI(TAG, "IP          : " IPSTR, IP2STR(&event->ip_info.ip));
        ESP_LOGI(TAG, "Netmask     : " IPSTR, IP2STR(&event->ip_info.netmask));
        ESP_LOGI(TAG, "Gateway     : " IPSTR, IP2STR(&event->ip_info.gw));
        esp_netif_get_dns_info(netif, ESP_NETIF_DNS_MAIN, &dns_info);
        ESP_LOGI(TAG, "Name Server1: " IPSTR, IP2STR(&dns_info.ip.u_addr.ip4));
        esp_netif_get_dns_info(netif, ESP_NETIF_DNS_BACKUP, &dns_info);
        ESP_LOGI(TAG, "Name Server2: " IPSTR, IP2STR(&dns_info.ip.u_addr.ip4));
        ESP_LOGI(TAG, "~~~~~~~~~~~~~~");
        xEventGroupSetBits(event_group, CONNECT_BIT);

        ESP_LOGI(TAG, "GOT ip event!!!");
    } else if (event_id == IP_EVENT_PPP_LOST_IP) {
        ESP_LOGI(TAG, "Modem Disconnect from PPP Server");
    } else if (event_id == IP_EVENT_GOT_IP6) {
        ESP_LOGI(TAG, "GOT IPv6 event!");

        ip_event_got_ip6_t *event = (ip_event_got_ip6_t *)event_data;
        ESP_LOGI(TAG, "Got IPv6 address " IPV6STR, IPV62STR(event->ip6_info.ip));
    }
}


static void modem_test_app(esp_modem_dte_config_t *dte_config, esp_modem_dce_config_t *dce_config, esp_netif_config_t *ppp_config);

extern "C" void app_main(void)
{

    /* Init and register system/core components */
    ESP_ERROR_CHECK(esp_netif_init());
    ESP_ERROR_CHECK(esp_event_loop_create_default());
    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, ESP_EVENT_ANY_ID, &on_ip_event, NULL));
    ESP_ERROR_CHECK(esp_event_handler_register(NETIF_PPP_STATUS, ESP_EVENT_ANY_ID, &on_ppp_changed, NULL));

    event_group = xEventGroupCreate();

    /* Configure the DTE */
    esp_modem_dte_config_t dte_config = ESP_MODEM_DTE_DEFAULT_CONFIG();

    /* Configure the DCE */
    esp_modem_dce_config_t dce_config = ESP_MODEM_DCE_DEFAULT_CONFIG(CONFIG_EXAMPLE_MODEM_PPP_APN);

    /* Configure the PPP netif */
    esp_netif_config_t netif_ppp_config = ESP_NETIF_DEFAULT_PPP();

    uint8_t data[32] = {};
    int actual_len = 0;
    auto uart_dte = create_uart_dte(&dte_config);
    uart_dte->set_mode(modem_mode::UNDEF);
    uart_dte->command("+++", [&](uint8_t *data, size_t len) {
        std::string response((char*)data, len);
        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
        std::cout << response << std::endl;
        return command_result::OK;
    }, 500);

//    uart_dte->command("AT+CPIN?\r", [&](uint8_t *data, size_t len) {
//        std::string response((char*)data, len);
//        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
//        std::cout << response << std::endl;
//        return command_result::OK;
//    }, 1000);
//
//    uart_dte->command("AT+CPIN=1234\r", [&](uint8_t *data, size_t len) {
//        std::string response((char*)data, len);
//        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
//        std::cout << response << std::endl;
//        return command_result::OK;
//    }, 1000);
//
//    return;
    esp_netif_t *esp_netif = esp_netif_new(&netif_ppp_config);
    assert(esp_netif);

    std::string apn = "internet";
//    auto device = create_generic_module(uart_dte, apn);
    auto device = create_SIM7600_module(uart_dte, apn);
//    bool pin_ok = true;
//    if (device->read_pin(pin_ok) == command_result::OK && !pin_ok) {
//        throw_if_false(device->set_pin("1234") == command_result::OK, "Cannot set PIN!");
//    }

//
    std::string number;
//    std::cout << "----" << std::endl;
//    device->get_imsi(number);
//    std::cout << "----" << std::endl;
//    std::cout << "|" << number << "|" << std::endl;
//    ESP_LOG_BUFFER_HEXDUMP("TEST", number.c_str(), number.length(), ESP_LOG_INFO);
//    std::cout << "----" << std::endl;
//    device->get_imei(number);
//    std::cout << "|" << number << "|" << std::endl;
//    device->get_module_name(number);
//    std::cout << "|" << number << "|" << std::endl;
//    std::cout << "----" << std::endl;
//    auto my_dce = create_generic_module_dce(uart_dte, device, esp_netif);
    auto my_dce = create_SIM7600_dce_from_module(uart_dte, device, esp_netif);
    my_dce->get_module_name(number);
    std::cout << "|" << number << "|" << std::endl;
    bool pin_ok = true;
    if (my_dce->read_pin(pin_ok) == command_result::OK && !pin_ok) {
        throw_if_false(my_dce->set_pin("1234") == command_result::OK, "Cannot set PIN!");
    }

//    return;
//    my_dce->set_cmux();
//    my_dce->set_cmux();

//    while (1) {
//        vTaskDelay(pdMS_TO_TICKS(1000));
//        uart_dte->write((uint8_t*)"AT+CPIN?\r", 9);
//
//    }
//    uart_dte->send_cmux_command(2, "AT+CPIN?");
//    return;

    my_dce->get_module_name(number);
    my_dce->set_data_mode();

    my_dce->command("AT+CPIN?\r", [&](uint8_t *data, size_t len) {
        std::string response((char*)data, len);
        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
        std::cout << response << std::endl;
        return command_result::OK;
    }, 1000);

    while (1) {

        my_dce->set_data();
        /* Config MQTT */
        xEventGroupWaitBits(event_group, CONNECT_BIT, pdTRUE, pdTRUE, portMAX_DELAY);
        esp_mqtt_client_config_t mqtt_config = { };
        mqtt_config.uri = BROKER_URL;
        esp_mqtt_client_handle_t mqtt_client = esp_mqtt_client_init(&mqtt_config);
        esp_mqtt_client_register_event(mqtt_client, MQTT_EVENT_ANY, mqtt_event_handler, NULL);
        esp_mqtt_client_start(mqtt_client);
        xEventGroupWaitBits(event_group, GOT_DATA_BIT, pdTRUE, pdTRUE, portMAX_DELAY);
        esp_mqtt_client_destroy(mqtt_client);

//    vTaskDelay(pdMS_TO_TICKS(20000));
        my_dce->exit_data();
        uart_dte->command("AT+CPIN?\r", [&](uint8_t *data, size_t len) {
            std::string response((char*)data, len);
//        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
            std::cout << response << std::endl;
            return command_result::OK;
        }, 1000);
    }

//    ddd->send_command("AT+COPS=?\r", [&](uint8_t *data, size_t len) {
//        std::string response((char*)data, len);
//        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
//        std::cout << response << std::endl;
//        return true;
//    }, 60000);

//    auto uart = create_uart_terminal(dte_config);
//    uart->set_data_cb([&](size_t len){
//        actual_len = uart->read(data, 32);
//        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
//    });
//    uart->write((uint8_t*)"AT\r",3);

    vTaskDelay(pdMS_TO_TICKS(1000));
//    int len = uart->read(data, 32);
//    ESP_LOGI(TAG, "len=%d data %s", len, (char*)data);
//    vTaskDelay(pdMS_TO_TICKS(1000));
//    len = uart->read(data, 32);
    ESP_LOGI(TAG, "len=%d data %s", actual_len, (char*)data);

    uart_dte->command("AT+CPIN?\r", [&](uint8_t *data, size_t len) {
        std::string response((char*)data, len);
        ESP_LOGI("in the lambda", "len=%d data %s", len, (char*)data);
        std::cout << response << std::endl;
        return command_result::OK;
    }, 1000);
}