feat(driverless) show driverless devices

lib/gui/app/app.js

@@ -232,6 +232,60 @@ app.run(() => {
   })
 })
 
+/**
+ * @summary The radix used by USB ID numbers
+ * @type {Number}
+ * @constant
+ */
+const USB_ID_RADIX = 16
+
+/**
+ * @summary The expected length of a USB ID number
+ * @type {Number}
+ * @constant
+ */
+const USB_ID_LENGTH = 4
+
+/**
+ * @summary Convert a USB id (e.g. product/vendor) to a string
+ * @function
+ * @private
+ *
+ * @param {Number} id - USB id
+ * @returns {String} string id
+ *
+ * @example
+ * console.log(usbIdToString(2652))
+ * > '0x0a5c'
+ */
+const usbIdToString = (id) => {
+  return `0x${_.padStart(id.toString(USB_ID_RADIX), USB_ID_LENGTH, '0')}`
+}
+
+/**
+ * @summary Product ID of BCM2708
+ * @type {Number}
+ * @constant
+ */
+const USB_PRODUCT_ID_BCM2708_BOOT = 0x2763
+
+/**
+ * @summary Product ID of BCM2710
+ * @type {Number}
+ * @constant
+ */
+const USB_PRODUCT_ID_BCM2710_BOOT = 0x2764
+
+/**
+ * @summary Compute module descriptions
+ * @type {Object}
+ * @constant
+ */
+const COMPUTE_MODULE_DESCRIPTIONS = {
+  [USB_PRODUCT_ID_BCM2708_BOOT]: 'Compute Module 1',
+  [USB_PRODUCT_ID_BCM2710_BOOT]: 'Compute Module 3'
+}
+
 app.run(($timeout) => {
   const BLACKLISTED_DRIVES = settings.has('driveBlacklist')
     ? settings.get('driveBlacklist').split(',')
@@ -259,6 +313,27 @@ app.run(($timeout) => {
         updateDriveProgress(drive, progress)
       })
       return drive
+    } else if (drive instanceof sdk.sourceDestination.DriverlessDevice) {
+      const description = COMPUTE_MODULE_DESCRIPTIONS[drive.deviceDescriptor.idProduct] || 'Compute Module'
+      return {
+        device: `${usbIdToString(drive.deviceDescriptor.idVendor)}:${usbIdToString(drive.deviceDescriptor.idProduct)}`,
+        displayName: 'Missing drivers',
+        description,
+        mountpoints: [],
+        isReadOnly: false,
+        isSystem: false,
+        disabled: true,
+        icon: 'warning',
+        size: null,
+        link: 'https://www.raspberrypi.org/documentation/hardware/computemodule/cm-emmc-flashing.md',
+        linkCTA: 'Install',
+        linkTitle: 'Install missing drivers',
+        linkMessage: [
+          'Would you like to download the necessary drivers from the Raspberry Pi Foundation?',
+          'This will open your browser.\n\n',
+          'Once opened, download and run the installer from the "Windows Installer" section to install the drivers.'
+        ].join(' ')
+      }
     }
   }