migrate

app/pkg/device/device.go

@@ -0,0 +1,106 @@
+package device
+
+import (
+	"errors"
+	"log"
+
+	"github.com/microjelly/hid"
+	"microjelly.com/beeon/app/pkg/device/report3"
+)
+
+var (
+	_devices  []Info
+	_logLevel LogLevel = LogNone
+)
+
+// Version - returns the version of this module
+func Version() string {
+	return "v1.0.1"
+}
+
+// UsbSupported - returns true if usb is supported on this platform
+func UsbSupported() bool {
+	return hid.Supported()
+}
+
+// SetLogLevel - sets the logging level
+func SetLogLevel(level LogLevel) {
+	_logLevel = level
+}
+
+// Enumerate - gets connected devices
+func Enumerate(vendorID uint16, productID uint16) ([]Info, error) {
+
+	var (
+		_devices []Info = nil
+		pSN      string = ""
+	)
+
+	for _, dev := range hid.Enumerate(vendorID, productID) {
+		if dev.Serial != pSN {
+			_devices = append(_devices, Info{
+				Serial:       dev.Serial,
+				Version:      dev.Release,
+				Manufacturer: dev.Manufacturer,
+				Product:      dev.Product,
+			})
+			pSN = dev.Serial
+		}
+	}
+
+	return _devices, nil
+}
+
+func open(vendorID uint16, productID uint16, serial string) (*hid.Device, error) {
+
+	devices := hid.Enumerate(vendorID, productID)
+	for _, dev := range devices {
+		if (serial != "" && dev.Serial == serial) || serial == "" {
+			_log(LogInfo, "opening device [%s]", dev.Serial)
+			return dev.Open()
+		}
+	}
+	return nil, errors.New("device not found")
+}
+
+// ReadReport3 - get device configuration
+func ReadReport3(vendorID uint16, productID uint16, serial string) (*report3.Report, error) {
+
+	report := []byte{0x03, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
+	dev, err := open(vendorID, productID, serial)
+	if err != nil {
+		return nil, err
+	}
+	defer dev.Close()
+	_, err = dev.GetFeatureReport(report)
+	if err != nil {
+		return nil, err
+	}
+	r := report3.New(report)
+	_log(LogDebug, "read %v > %v", report, r)
+	return r, nil
+}
+
+// WriteReport3 - get device configuration
+func WriteReport3(vendorID uint16, productID uint16, serial string, report []byte) error {
+
+	dev, err := open(vendorID, productID, serial)
+	if err != nil {
+		return err
+	}
+	defer dev.Close()
+
+	_log(LogDebug, "write %v > %v", report, report3.New(report))
+	_, err = dev.SendFeatureReport(report)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func _log(level LogLevel, format string, v ...interface{}) {
+	if level >= _logLevel {
+		log.Printf(format, v...)
+	}
+}