Initial commit of Arduino libraries

RadioLib/extras/test/SX126x/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.18)
+
+# create the project
+project(rpi-sx1261)
+
+# when using debuggers such as gdb, the following line can be used
+#set(CMAKE_BUILD_TYPE Debug)
+
+# if you did not build RadioLib as shared library (see README),
+# you will have to add it as source directory
+# the following is just an example, yours will likely be different
+#add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/../../../../RadioLib" "${CMAKE_CURRENT_BINARY_DIR}/RadioLib")
+
+# add the executable
+add_executable(${PROJECT_NAME} main.cpp)
+
+# link both libraries
+target_link_libraries(${PROJECT_NAME} RadioLib pigpio)
+
+# you can also specify RadioLib compile-time flags here
+#target_compile_definitions(${PROJECT_NAME} PUBLIC RADIOLIB_DEBUG RADIOLIB_VERBOSE)

RadioLib/extras/test/SX126x/PiHal.h

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+#ifndef PI_HAL_H
+#define PI_HAL_H
+
+// include RadioLib
+#include <RadioLib/RadioLib.h>
+
+// include the library for Raspberry GPIO pins
+#include "pigpio.h"
+
+// create a new Raspberry Pi hardware abstraction layer
+// using the pigpio library
+// the HAL must inherit from the base RadioLibHal class
+// and implement all of its virtual methods
+class PiHal : public RadioLibHal {
+  public:
+    // default constructor - initializes the base HAL and any needed private members
+    PiHal(uint8_t spiChannel, uint32_t spiSpeed = 2000000)
+      : RadioLibHal(PI_INPUT, PI_OUTPUT, PI_LOW, PI_HIGH, RISING_EDGE, FALLING_EDGE), 
+      _spiChannel(spiChannel),
+      _spiSpeed(spiSpeed) {
+    }
+
+    void init() override {
+      // first initialise pigpio library
+      gpioInitialise();
+
+      // now the SPI
+      spiBegin();
+
+      // Waveshare LoRaWAN Hat also needs pin 18 to be pulled high to enable the radio
+      gpioSetMode(18, PI_OUTPUT);
+      gpioWrite(18, PI_HIGH);
+    }
+
+    void term() override {
+      // stop the SPI
+      spiEnd();
+
+      // pull the enable pin low
+      gpioSetMode(18, PI_OUTPUT);
+      gpioWrite(18, PI_LOW);
+
+      // finally, stop the pigpio library
+      gpioTerminate();
+    }
+
+    // GPIO-related methods (pinMode, digitalWrite etc.) should check
+    // RADIOLIB_NC as an alias for non-connected pins
+    void pinMode(uint32_t pin, uint32_t mode) override {
+      if(pin == RADIOLIB_NC) {
+        return;
+      }
+
+      gpioSetMode(pin, mode);
+    }
+
+    void digitalWrite(uint32_t pin, uint32_t value) override {
+      if(pin == RADIOLIB_NC) {
+        return;
+      }
+
+      gpioWrite(pin, value);
+    }
+
+    uint32_t digitalRead(uint32_t pin) override {
+      if(pin == RADIOLIB_NC) {
+        return(0);
+      }
+
+      return(gpioRead(pin));
+    }
+
+    void attachInterrupt(uint32_t interruptNum, void (*interruptCb)(void), uint32_t mode) override {
+      if(interruptNum == RADIOLIB_NC) {
+        return;
+      }
+
+      gpioSetISRFunc(interruptNum, mode, 0, (gpioISRFunc_t)interruptCb);
+    }
+
+    void detachInterrupt(uint32_t interruptNum) override {
+      if(interruptNum == RADIOLIB_NC) {
+        return;
+      }
+
+      gpioSetISRFunc(interruptNum, 0, 0, NULL);
+    }
+
+    void delay(RadioLibTime_t ms) override {
+      gpioDelay(ms * 1000);
+    }
+
+    void delayMicroseconds(RadioLibTime_t us) override {
+      gpioDelay(us);
+    }
+
+    RadioLibTime_t millis() override {
+      return(gpioTick() / 1000);
+    }
+
+    RadioLibTime_t micros() override {
+      return(gpioTick());
+    }
+
+    long pulseIn(uint32_t pin, uint32_t state, RadioLibTime_t timeout) override {
+      if(pin == RADIOLIB_NC) {
+        return(0);
+      }
+
+      this->pinMode(pin, PI_INPUT);
+      RadioLibTime_t start = this->micros();
+      RadioLibTime_t curtick = this->micros();
+
+      while(this->digitalRead(pin) == state) {
+        if((this->micros() - curtick) > timeout) {
+          return(0);
+        }
+      }
+
+      return(this->micros() - start);
+    }
+
+   void spiBegin() {
+      if(_spiHandle < 0) {
+        _spiHandle = spiOpen(_spiChannel, _spiSpeed, 0);
+      }
+    }
+
+    void spiBeginTransaction() {}
+    
+    void spiTransfer(uint8_t* out, size_t len, uint8_t* in) {
+      spiXfer(_spiHandle, (char*)out, (char*)in, len);
+    }
+
+    void spiEndTransaction() {}
+
+    void spiEnd() {
+      if(_spiHandle >= 0) {
+        spiClose(_spiHandle);
+        _spiHandle = -1;
+      }
+    }
+
+  private:
+    // the HAL can contain any additional private members
+    const unsigned int _spiSpeed;
+    const uint8_t _spiChannel;
+    int _spiHandle = -1;
+};
+
+#endif

RadioLib/extras/test/SX126x/build.sh

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+#!/bin/bash
+
+set -e
+mkdir -p build
+cd build
+cmake -G "CodeBlocks - Unix Makefiles" ..
+make -j4
+cd ..

RadioLib/extras/test/SX126x/clean.sh

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+#!/bin/bash
+
+rm -rf ./build

RadioLib/extras/test/SX126x/main.cpp

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+// this is an autotest file for the SX126x
+// runs on Raspberry Pi with Waveshare LoRaWAN hat
+
+#include <RadioLib/RadioLib.h>
+#include "PiHal.h"
+
+#define RADIOLIB_TEST_ASSERT(STATEVAR) { if((STATEVAR) != RADIOLIB_ERR_NONE) { return(-1*(STATEVAR)); } }
+
+PiHal* hal = new PiHal(1);
+SX1261 radio = new Module(hal, 7, 17, 22, RADIOLIB_NC);
+
+// the entry point for the program
+int main(int argc, char** argv) {
+  int state = RADIOLIB_ERR_UNKNOWN;
+
+  state = radio.begin();
+  printf("[SX1261] Test:begin() = %d\n", state);
+  RADIOLIB_TEST_ASSERT(state);
+
+  state = radio.transmit("Hello World!");
+  printf("[SX1261] Test:transmit() = %d\n", state);
+  RADIOLIB_TEST_ASSERT(state);
+
+  hal->term();
+  return(0);
+}