Add get-i2c-health.js

packages/usb/get-i2c-health.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+const process = require('process');
+const uhk = require('./uhk');
+
+function slaveI2cErrorBufferToString(buffer, slaveId) {
+    let statusCount = buffer[1];
+
+    const slaveIdToName = [
+        'leftHalf',
+        'leftAddon',
+        'rightAddon',
+        'rightLedDriver',
+        'leftLedDriver',
+        'kboot',
+    ];
+
+    let str = `${slaveIdToName[slaveId].padEnd(14)}: `;
+
+    const statusCodesToStrings = {
+        0: 'nak',
+        1: 'failure',
+        1100: 'busy',
+        1101: 'idle',
+        1102: 'nak',
+        1103: 'arbitrationLost',
+        1104: 'timeout',
+        20000: 'idleSlave',
+        20001: 'idleCycle',
+    };
+
+    for (let i=0; i<statusCount; i++) {
+        let status = uhk.getUint32(buffer, i*8+2);
+        let count = uhk.getUint32(buffer, i*8+4+2);
+        str += `${statusCodesToStrings[status]}:${count} `;
+    }
+
+    return str;
+}
+
+const device = uhk.getUhkDevice();
+for (let slaveId=0; slaveId<6; slaveId++) {
+    device.write(uhk.getTransferData(new Buffer([uhk.usbCommands.getSlaveI2cErrors, slaveId])));
+    let response = Buffer.from(device.readSync());
+    let str = slaveI2cErrorBufferToString(response, slaveId);
+    console.log(str);
+}