ninafw: add support for Arduino Nano IoT 33

Signed-off-by: deadprogram <[email protected]>

adapter_ninafw.go

@@ -19,7 +19,6 @@ type Adapter struct {
 	isDefault bool
 	scanning  bool
 
-	reset          func()
 	connectHandler func(device Address, connected bool)
 
 	connectedDevices     []*Device
@@ -31,7 +30,6 @@ type Adapter struct {
 // Make sure to call Enable() before using it to initialize the adapter.
 var DefaultAdapter = &Adapter{
 	isDefault: true,
-	reset:     resetNINAInverted,
 	connectHandler: func(device Address, connected bool) {
 		return
 	},
@@ -45,14 +43,14 @@ func (a *Adapter) Enable() error {
 	machine.NINA_CS.Configure(machine.PinConfig{Mode: machine.PinOutput})
 	machine.NINA_RESETN.Configure(machine.PinConfig{Mode: machine.PinOutput})
 	machine.NINA_CS.Low()
-	a.reset()
+	resetNINA()
 
 	// serial port for nina chip
-	uart := machine.UART1
+	uart := machine.UART_NINA
 	uart.Configure(machine.UARTConfig{
 		TX:       machine.NINA_TX,
 		RX:       machine.NINA_RX,
-		BaudRate: 115200,
+		BaudRate: ninaBaudrate,
 		CTS:      machine.NINA_CTS,
 		RTS:      machine.NINA_RTS,
 	})
@@ -118,20 +116,6 @@ func makeNINAAddress(mac MAC) [6]uint8 {
 	}
 }
 
-func resetNINA() {
-	machine.NINA_RESETN.High()
-	time.Sleep(100 * time.Millisecond)
-	machine.NINA_RESETN.Low()
-	time.Sleep(1000 * time.Millisecond)
-}
-
-func resetNINAInverted() {
-	machine.NINA_RESETN.Low()
-	time.Sleep(100 * time.Millisecond)
-	machine.NINA_RESETN.High()
-	time.Sleep(1000 * time.Millisecond)
-}
-
 func (a *Adapter) startNotifications() {
 	if a.notificationsStarted {
 		return

ninafw_reset.go

@@ -0,0 +1,15 @@
+//go:build ninafw && !ninafw_reset_inverse
+
+package bluetooth
+
+import (
+	"machine"
+	"time"
+)
+
+func resetNINA() {
+	machine.NINA_RESETN.High()
+	time.Sleep(100 * time.Millisecond)
+	machine.NINA_RESETN.Low()
+	time.Sleep(1000 * time.Millisecond)
+}

ninafw_reset_inverse.go

@@ -0,0 +1,15 @@
+//go:build ninafw && ninafw_reset_inverse
+
+package bluetooth
+
+import (
+	"machine"
+	"time"
+)
+
+func resetNINA() {
+	machine.NINA_RESETN.Low()
+	time.Sleep(100 * time.Millisecond)
+	machine.NINA_RESETN.High()
+	time.Sleep(1000 * time.Millisecond)
+}

ninafw_uart.go

@@ -0,0 +1,5 @@
+//go:build ninafw && !ninafw_uart_slow
+
+package bluetooth
+
+const ninaBaudrate = 912600

ninafw_uart_slow.go

@@ -0,0 +1,5 @@
+//go:build ninafw && ninafw_uart_slow
+
+package bluetooth
+
+const ninaBaudrate = 115200