Add network device driver model, netdev

netlink.go

@@ -0,0 +1,49 @@
+package drivers
+
+import (
+	"errors"
+	"net"
+)
+
+// NetConnect() errors
+var (
+	ErrConnected          = errors.New("Already connected")
+	ErrConnectFailed      = errors.New("Connect failed")
+	ErrConnectTimeout     = errors.New("Connect timed out")
+	ErrMissingSSID        = errors.New("Missing WiFi SSID")
+	ErrStartingDHCPClient = errors.New("Error starting DHPC client")
+)
+
+type NetlinkEvent int
+
+// Netlink network events
+const (
+	// The device's network connection is now UP
+	NetlinkEventNetUp NetlinkEvent = iota
+	// The device's network connection is now DOWN
+	NetlinkEventNetDown
+)
+
+// Network drivers (optionally) implement the Netlinker interface.  This
+// interface is not used by TinyGo's "net" package, but rather provides the
+// TinyGo application direct access to the network device for common settings
+// and control that fall outside of netdev's socket interface.
+
+type Netlinker interface {
+
+	// NetConnect device to IP network
+	NetConnect() error
+
+	// NetDisconnect device from IP network
+	NetDisconnect()
+
+	// NetNotify to register callback for network events
+	NetNotify(func(NetlinkEvent))
+
+	// GetHardwareAddr returns device MAC address
+	GetHardwareAddr() (net.HardwareAddr, error)
+
+	// GetIPAddr returns IP address assigned to device, either by DHCP or
+	// statically
+	GetIPAddr() (net.IP, error)
+}