#include "ml307_board.h"
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#include "audio_codec.h"
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#include "display.h"
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#include <esp_log.h>
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#include <esp_timer.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/task.h>
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#include <font_awesome.h>
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#include <utility>
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static const char *TAG = "Ml307Board";
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// Maximum retry count for modem detection
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static constexpr int MODEM_DETECT_MAX_RETRIES = 30;
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// Maximum retry count for network registration
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static constexpr int NETWORK_REG_MAX_RETRIES = 6;
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Ml307Board::Ml307Board(gpio_num_t tx_pin, gpio_num_t rx_pin, gpio_num_t dtr_pin) : tx_pin_(tx_pin), rx_pin_(rx_pin), dtr_pin_(dtr_pin) {
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}
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std::string Ml307Board::GetBoardType() {
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return "ml307";
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}
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void Ml307Board::SetNetworkEventCallback(NetworkEventCallback callback) {
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network_event_callback_ = std::move(callback);
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}
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void Ml307Board::OnNetworkEvent(NetworkEvent event, const std::string& data) {
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switch (event) {
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case NetworkEvent::ModemDetecting:
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ESP_LOGI(TAG, "Detecting modem...");
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break;
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case NetworkEvent::Connecting:
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ESP_LOGI(TAG, "Registering network...");
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break;
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case NetworkEvent::Connected:
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ESP_LOGI(TAG, "Network connected");
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break;
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case NetworkEvent::Disconnected:
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ESP_LOGW(TAG, "Network disconnected");
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break;
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case NetworkEvent::ModemErrorNoSim:
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ESP_LOGE(TAG, "No SIM card detected");
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break;
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case NetworkEvent::ModemErrorRegDenied:
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ESP_LOGE(TAG, "Network registration denied");
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break;
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case NetworkEvent::ModemErrorInitFailed:
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ESP_LOGE(TAG, "Modem initialization failed");
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break;
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case NetworkEvent::ModemErrorTimeout:
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ESP_LOGE(TAG, "Operation timeout");
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break;
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default:
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break;
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}
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// Notify external callback if set
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if (network_event_callback_) {
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network_event_callback_(event, data);
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}
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}
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void Ml307Board::NetworkTask() {
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// Notify modem detection started
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OnNetworkEvent(NetworkEvent::ModemDetecting);
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// Try to detect modem with retry limit
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int detect_retries = 0;
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while (detect_retries < MODEM_DETECT_MAX_RETRIES) {
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modem_ = AtModem::Detect(tx_pin_, rx_pin_, dtr_pin_, 921600);
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if (modem_ != nullptr) {
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break;
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}
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detect_retries++;
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vTaskDelay(pdMS_TO_TICKS(1000));
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}
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if (modem_ == nullptr) {
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ESP_LOGE(TAG, "Failed to detect modem after %d retries", MODEM_DETECT_MAX_RETRIES);
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OnNetworkEvent(NetworkEvent::ModemErrorInitFailed);
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return;
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}
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ESP_LOGI(TAG, "Modem detected successfully");
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// Set up network state change callback
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// Note: Don't call GetCarrierName() here as it sends AT command and will block ReceiveTask
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modem_->OnNetworkStateChanged([this](bool network_ready) {
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if (network_ready) {
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OnNetworkEvent(NetworkEvent::Connected);
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} else {
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OnNetworkEvent(NetworkEvent::Disconnected);
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}
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});
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// Notify network registration started
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OnNetworkEvent(NetworkEvent::Connecting);
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// Wait for network ready with retry limit
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int reg_retries = 0;
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while (reg_retries < NETWORK_REG_MAX_RETRIES) {
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auto result = modem_->WaitForNetworkReady();
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if (result == NetworkStatus::Ready) {
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break;
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} else if (result == NetworkStatus::ErrorInsertPin) {
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OnNetworkEvent(NetworkEvent::ModemErrorNoSim);
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} else if (result == NetworkStatus::ErrorRegistrationDenied) {
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OnNetworkEvent(NetworkEvent::ModemErrorRegDenied);
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} else if (result == NetworkStatus::ErrorTimeout) {
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OnNetworkEvent(NetworkEvent::ModemErrorTimeout);
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}
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reg_retries++;
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vTaskDelay(pdMS_TO_TICKS(10000));
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}
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if (!modem_->network_ready()) {
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ESP_LOGE(TAG, "Failed to register network after %d retries", NETWORK_REG_MAX_RETRIES);
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return;
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}
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// Print the ML307 modem information
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std::string module_revision = modem_->GetModuleRevision();
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std::string imei = modem_->GetImei();
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std::string iccid = modem_->GetIccid();
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ESP_LOGI(TAG, "ML307 Revision: %s", module_revision.c_str());
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ESP_LOGI(TAG, "ML307 IMEI: %s", imei.c_str());
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ESP_LOGI(TAG, "ML307 ICCID: %s", iccid.c_str());
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}
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void Ml307Board::StartNetwork() {
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// Create network initialization task and return immediately
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xTaskCreate([](void* arg) {
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Ml307Board* board = static_cast<Ml307Board*>(arg);
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board->NetworkTask();
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vTaskDelete(NULL);
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}, "ml307_net", 4096, this, 5, NULL);
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}
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NetworkInterface* Ml307Board::GetNetwork() {
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return modem_.get();
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}
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const char* Ml307Board::GetNetworkStateIcon() {
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if (modem_ == nullptr || !modem_->network_ready()) {
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return FONT_AWESOME_SIGNAL_OFF;
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}
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int csq = modem_->GetCsq();
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if (csq == -1) {
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return FONT_AWESOME_SIGNAL_OFF;
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} else if (csq >= 0 && csq <= 9) {
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return FONT_AWESOME_SIGNAL_WEAK;
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} else if (csq >= 10 && csq <= 14) {
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return FONT_AWESOME_SIGNAL_FAIR;
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} else if (csq >= 15 && csq <= 19) {
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return FONT_AWESOME_SIGNAL_GOOD;
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} else if (csq >= 20 && csq <= 31) {
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return FONT_AWESOME_SIGNAL_STRONG;
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}
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ESP_LOGW(TAG, "Invalid CSQ: %d", csq);
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return FONT_AWESOME_SIGNAL_OFF;
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}
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std::string Ml307Board::GetBoardJson() {
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// Set the board type for OTA
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std::string board_json = std::string("{\"type\":\"" BOARD_TYPE "\",");
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board_json += "\"name\":\"" BOARD_NAME "\",";
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board_json += "\"revision\":\"" + modem_->GetModuleRevision() + "\",";
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board_json += "\"carrier\":\"" + modem_->GetCarrierName() + "\",";
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board_json += "\"csq\":\"" + std::to_string(modem_->GetCsq()) + "\",";
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board_json += "\"imei\":\"" + modem_->GetImei() + "\",";
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board_json += "\"iccid\":\"" + modem_->GetIccid() + "\",";
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board_json += "\"cereg\":" + modem_->GetRegistrationState().ToString() + "}";
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return board_json;
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}
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void Ml307Board::SetPowerSaveLevel(PowerSaveLevel level) {
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// TODO: Implement power save level for ML307
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(void)level;
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}
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std::string Ml307Board::GetDeviceStatusJson() {
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/*
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* 返回设备状态JSON
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*
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* 返回的JSON结构如下：
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* {
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* "audio_speaker": {
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* "volume": 70
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* },
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* "screen": {
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* "brightness": 100,
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* "theme": "light"
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* },
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* "battery": {
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* "level": 50,
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* "charging": true
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* },
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* "network": {
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* "type": "cellular",
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* "carrier": "CHINA MOBILE",
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* "csq": 10
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* }
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* }
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*/
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auto& board = Board::GetInstance();
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auto root = cJSON_CreateObject();
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// Audio speaker
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auto audio_speaker = cJSON_CreateObject();
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auto audio_codec = board.GetAudioCodec();
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if (audio_codec) {
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cJSON_AddNumberToObject(audio_speaker, "volume", audio_codec->output_volume());
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}
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cJSON_AddItemToObject(root, "audio_speaker", audio_speaker);
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// Screen brightness
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auto backlight = board.GetBacklight();
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auto screen = cJSON_CreateObject();
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if (backlight) {
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cJSON_AddNumberToObject(screen, "brightness", backlight->brightness());
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}
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auto display = board.GetDisplay();
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if (display && display->height() > 64) { // For LCD display only
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auto theme = display->GetTheme();
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if (theme != nullptr) {
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cJSON_AddStringToObject(screen, "theme", theme->name().c_str());
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}
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}
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cJSON_AddItemToObject(root, "screen", screen);
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// Battery
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int battery_level = 0;
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bool charging = false;
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bool discharging = false;
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if (board.GetBatteryLevel(battery_level, charging, discharging)) {
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cJSON* battery = cJSON_CreateObject();
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cJSON_AddNumberToObject(battery, "level", battery_level);
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cJSON_AddBoolToObject(battery, "charging", charging);
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cJSON_AddItemToObject(root, "battery", battery);
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}
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// Network
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auto network = cJSON_CreateObject();
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cJSON_AddStringToObject(network, "type", "cellular");
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cJSON_AddStringToObject(network, "carrier", modem_->GetCarrierName().c_str());
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int csq = modem_->GetCsq();
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if (csq == -1) {
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cJSON_AddStringToObject(network, "signal", "unknown");
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} else if (csq >= 0 && csq <= 14) {
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cJSON_AddStringToObject(network, "signal", "very weak");
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} else if (csq >= 15 && csq <= 19) {
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cJSON_AddStringToObject(network, "signal", "weak");
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} else if (csq >= 20 && csq <= 24) {
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cJSON_AddStringToObject(network, "signal", "medium");
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} else if (csq >= 25 && csq <= 31) {
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cJSON_AddStringToObject(network, "signal", "strong");
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}
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cJSON_AddItemToObject(root, "network", network);
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auto json_str = cJSON_PrintUnformatted(root);
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std::string json(json_str);
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cJSON_free(json_str);
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cJSON_Delete(root);
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return json;
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}
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