110 lines
2.6 KiB
JavaScript
Executable File
110 lines
2.6 KiB
JavaScript
Executable File
let usb = require('usb');
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function bufferToString(buffer) {
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let str = '';
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for (let i = 0; i < buffer.length; i++) {
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let hex = buffer[i].toString(16) + ' ';
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if (hex.length <= 2) {
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hex = '0' + hex;
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}
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str += hex;
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};
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return str;
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}
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let usbEndpoints;
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function getUsbEndpoints() {
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let vid = 0x16d3;
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let pid = 0x05ea;
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let device = usb.findByIds(vid, pid);
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device.open();
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let usbInterface = device.interface(0);
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// https://github.com/tessel/node-usb/issues/147
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// The function 'isKernelDriverActive' is not available on Windows and not even needed.
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if (process.platform !== 'win32' && usbInterface.isKernelDriverActive()) {
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usbInterface.detachKernelDriver();
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}
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usbInterface.claim();
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let endpointIn = usbInterface.endpoints[0];
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let endpointOut = usbInterface.endpoints[1];
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return [endpointIn, endpointOut];
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}
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class DelayMs {
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constructor(ms) {
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this.ms = ms;
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}
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}
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function sendUsbPacketsByCallback(packetProvider) {
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let packet = packetProvider()
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if (!packet) {
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process.exit(1);
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}
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if (packet instanceof DelayMs) {
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setTimeout(() => {
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sendUsbPacketsByCallback(packetProvider);
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}, packet.ms);
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return;
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}
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console.log('Sending: ', bufferToString(packet));
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let [endpointIn, endpointOut] = usbEndpoints || getUsbEndpoints();
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endpointOut.transfer(packet, function(err) {
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if (err) {
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console.error("USB error: %s", err);
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process.exit(1);
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}
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endpointIn.transfer(64, function(err2, receivedBuffer) {
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if (err2) {
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console.error("USB error: %s", err2);
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process.exit(2);
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}
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console.log('Received:', bufferToString(receivedBuffer));
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sendUsbPacketsByCallback(packetProvider);
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})
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})
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}
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function sendUsbPacket(packet) {
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sendUsbPackets([packet]);
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}
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function sendUsbPackets(packets) {
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sendUsbPacketsByCallback(() => {
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return packets.shift();
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})
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}
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exports = module.exports = {
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DelayMs,
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bufferToString,
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getUsbEndpoints,
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sendUsbPacket,
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sendUsbPackets,
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sendUsbPacketsByCallback,
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usbCommands: {
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getProperty: 0,
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jumpToBootloader: 1,
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setTestLed: 2,
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writeLedDriver: 3,
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readLedDriver: 4,
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writeEeprom: 5,
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readEeprom: 6,
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readMergeSensor: 7,
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uploadConfig: 8,
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applyConfig: 9,
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setLedPwm: 10
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},
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leftLedDriverAddress: 0b1110100,
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rightLedDriverAddress: 0b1110111
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}
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