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

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

examples/sx126x/lora_continuous/lora_continuous.go

@@ -5,8 +5,6 @@ import (
 	"machine"
 	"time"
 
-	rfswitch "tinygo.org/x/drivers/examples/sx126x/rfswitch"
-
 	"tinygo.org/x/drivers/lora"
 	"tinygo.org/x/drivers/sx126x"
 )
@@ -24,12 +22,11 @@ func main() {
 	machine.LED.Configure(machine.PinConfig{Mode: machine.PinOutput})
 
 	// Create the driver
-	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())
 
 	state := loraRadio.DetectDevice()
 	if !state {
@@ -76,6 +73,5 @@ func main() {
 
 		loraRadio.SetStandby()
 		time.Sleep(60 * time.Second)
-
 	}
 }

examples/sx126x/lora_continuous/radio.go

@@ -0,0 +1,19 @@
+//go:build !stm32wlx
+
+package main
+
+import (
+	"machine"
+
+	"tinygo.org/x/drivers/sx126x"
+)
+
+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)
+}

examples/sx126x/lora_continuous/radio_stm32wl.go

@@ -0,0 +1,15 @@
+//go:build stm32wlx
+
+package main
+
+import (
+	"machine"
+
+	"tinygo.org/x/drivers/sx126x"
+)
+
+var spi = machine.SPI3
+
+func newRadioControl() sx126x.RadioController {
+	return sx126x.NewRadioControl()
+}