sx126x: refactor to RadioController interface to more easily handle non-STM32WL boards and remove duplicated code

Signed-off-by: deadprogram <ron@hybridgroup.com>

examples/lora/lorawan/common/sx126x.go

@@ -1,13 +1,9 @@
-//go:build gnse || lorae5 || nucleowl55jc
+//go:build !stm32wlx && sx126x
 
 package common
 
 import (
-	"device/stm32"
 	"machine"
-	"runtime/interrupt"
-
-	rfswitch "tinygo.org/x/drivers/examples/sx126x/rfswitch"
 
 	"tinygo.org/x/drivers/lora"
 	"tinygo.org/x/drivers/sx126x"
@@ -23,23 +19,28 @@ var (
 	loraRadio *sx126x.Device
 )
 
+var (
+	spi                               = machine.SPI0
+	nssPin, busyPin, dio0Pin, dio1Pin = machine.GP17, machine.GP20, machine.GP11, machine.GP10
+	rxPin, txLowPin, txHighPin        = machine.GP13, machine.GP12, machine.GP12
+)
+
+func newRadioControl() sx126x.RadioController {
+	return sx126x.NewRadioControl(nssPin, busyPin, dio0Pin, dio1Pin, rxPin, txLowPin, txHighPin)
+}
+
 // do sx126x setup here
 func SetupLora() (lora.Radio, error) {
-	loraRadio = sx126x.New(machine.SPI3)
+	loraRadio = sx126x.New(spi)
 	loraRadio.SetDeviceType(sx126x.DEVICE_TYPE_SX1262)
 
-	// Create RF Switch
-	var radioSwitch rfswitch.CustomSwitch
-	loraRadio.SetRfSwitch(radioSwitch)
+	// Create radio controller for target
+	loraRadio.SetRadioController(newRadioControl())
 
 	if state := loraRadio.DetectDevice(); !state {
 		return nil, errRadioNotFound
 	}
 
-	// Add interrupt handler for Radio IRQs
-	intr := interrupt.New(stm32.IRQ_Radio_IRQ_Busy, radioIntHandler)
-	intr.Enable()
-
 	loraConf := lora.Config{
 		Freq:           FREQ,
 		Bw:             lora.Bandwidth_500_0,
@@ -59,11 +60,6 @@ func SetupLora() (lora.Radio, error) {
 	return loraRadio, nil
 }
 
-// radioIntHandler will take care of radio interrupts
-func radioIntHandler(intr interrupt.Interrupt) {
-	loraRadio.HandleInterrupt()
-}
-
 func FirmwareVersion() string {
 	return "sx126x"
 }