初始化提交
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王立帮
229
common/modules/mixly-modules/web/usb.js
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229
common/modules/mixly-modules/web/usb.js
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goog.loadJs('web', () => {
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goog.require('DAPjs');
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goog.require('Mixly.Serial');
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goog.require('Mixly.Env');
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goog.require('Mixly.Nav');
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goog.require('Mixly.Msg');
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goog.require('Mixly.Debug');
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goog.require('Mixly.Registry');
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goog.require('Mixly.Web');
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goog.provide('Mixly.Web.USB');
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const {
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Serial,
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Env,
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Nav,
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Msg,
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Debug,
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Registry,
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Web
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} = Mixly;
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class USB extends Serial {
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static {
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this.portToNameRegistry = new Registry();
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this.serialNumberToNameRegistry = new Registry();
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this.nameToPortRegistry = new Registry();
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this.getConfig = function () {
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return Serial.getConfig();
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}
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this.getSelectedPortName = function () {
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return Serial.getSelectedPortName();
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}
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this.getCurrentPortsName = function () {
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return Serial.getCurrentPortsName();
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}
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this.refreshPorts = function () {
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let portsName = [];
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for (let name of this.nameToPortRegistry.keys()) {
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portsName.push({ name });
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}
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Serial.renderSelectBox(portsName);
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}
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this.requestPort = function () {
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navigator.usb.requestDevice({ filters: [{ vendorId: 0xD28 }] })
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.then((device) => {
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this.addPort(device);
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this.refreshPorts();
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})
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.catch(Debug.error);
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}
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this.getPort = function (name) {
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return this.nameToPortRegistry.getItem(name);
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}
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this.addPort = function (device) {
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if (this.portToNameRegistry.hasKey(device)) {
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return;
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}
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const { serialNumber } = device;
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let name = this.serialNumberToNameRegistry.getItem(serialNumber);
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if (!name) {
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for (let i = 1; i <= 20; i++) {
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name = `usb${i}`;
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if (this.nameToPortRegistry.hasKey(name)) {
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continue;
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}
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break;
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}
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this.serialNumberToNameRegistry.register(serialNumber, name);
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}
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this.portToNameRegistry.register(device, name);
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this.nameToPortRegistry.register(name, device);
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}
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this.removePort = function (device) {
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if (!this.portToNameRegistry.hasKey(device)) {
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return;
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}
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const name = this.portToNameRegistry.getItem(device);
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if (!name) {
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return;
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}
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this.portToNameRegistry.unregister(device);
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this.nameToPortRegistry.unregister(name);
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}
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this.addEventsListener = function () {
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navigator.usb.addEventListener('connect', (event) => {
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this.addPort(event.device);
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this.refreshPorts();
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});
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navigator.usb.addEventListener('disconnect', (event) => {
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this.removePort(event.device);
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this.refreshPorts();
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});
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}
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navigator.usb.getDevices().then((devices) => {
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for (let device of devices) {
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this.addPort(device);
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}
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});
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this.addEventsListener();
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}
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#device_ = null;
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#webUSB_ = null;
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#dapLink_ = null;
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#keepReading_ = null;
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#reader_ = null;
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#writer_ = null;
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#stringTemp_ = '';
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constructor(port) {
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super(port);
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}
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#addEventsListener_() {
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this.#addReadEventListener_();
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}
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#addReadEventListener_() {
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this.#dapLink_.on(DAPjs.DAPLink.EVENT_SERIAL_DATA, data => {
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const str = data.split('');
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for (let i = 0; i < str.length; i++) {
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this.onChar(str[i]);
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}
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});
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this.#dapLink_.startSerialRead(this.#device_);
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}
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async open(baud) {
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const portsName = Serial.getCurrentPortsName();
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const currentPortName = this.getPortName();
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if (!portsName.includes(currentPortName)) {
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throw new Error('无可用串口');
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}
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if (this.isOpened()) {
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return;
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}
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baud = baud ?? this.getBaudRate();
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this.#device_ = USB.getPort(currentPortName);
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this.#webUSB_ = new DAPjs.WebUSB(this.#device_);
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this.#dapLink_ = new DAPjs.DAPLink(this.#webUSB_);
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await this.#dapLink_.connect();
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super.open(baud);
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await this.setBaudRate(baud);
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this.onOpen();
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this.#addEventsListener_();
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}
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async close() {
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if (!this.isOpened()) {
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return;
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}
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super.close();
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this.#dapLink_.removeAllListeners(DAPjs.DAPLink.EVENT_SERIAL_DATA);
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this.#dapLink_.stopSerialRead();
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await this.#dapLink_.stopSerialRead();
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await this.#dapLink_.disconnect();
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this.#dapLink_ = null;
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await this.#webUSB_.close();
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this.#webUSB_ = null;
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await this.#device_.close();
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this.#device_ = null;
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this.onClose(1);
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}
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async setBaudRate(baud) {
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if (!this.isOpened() || this.getBaudRate() === baud) {
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return;
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}
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await this.setSerialBaudrate(baud);
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await super.setBaudRate(baud);
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}
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async sendString(str) {
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return this.#dapLink_.serialWrite(str);
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}
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async sendBuffer(buffer) {
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if (typeof buffer.unshift === 'function') {
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buffer.unshift(buffer.length);
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buffer = new Uint8Array(buffer).buffer;
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}
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return this.#dapLink_.send(132, buffer);
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}
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async setDTRAndRTS(dtr, rts) {
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if (!this.isOpened()
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|| (this.getDTR() === dtr && this.getRTS() === rts)) {
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return;
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}
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await super.setDTRAndRTS(dtr, rts);
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}
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async setDTR(dtr) {
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return this.setDTRAndRTS(dtr, this.getRTS());
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}
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async setRTS(rts) {
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return this.setDTRAndRTS(this.getDTR(), rts);
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}
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onChar(char) {
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super.onChar(char);
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if (['\r', '\n'].includes(char)) {
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super.onString(this.#stringTemp_);
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this.#stringTemp_ = '';
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} else {
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this.#stringTemp_ += char;
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}
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const buffer = this.encode(char);
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super.onBuffer(buffer);
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for (let i = 0; i < buffer.length; i++) {
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super.onByte(buffer[i]);
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}
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}
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}
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Web.USB = USB;
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});
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