rfm23.h

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#ifndef _RFM23_H
#define _RFM23_H
 
#include "helpers.h"
#include <RHHardwareSPI1.h>
#include <RH_RF22.h>
#include <TeensyThreads.h>
#include <support/packetcomm.h>
 
#undef RH_RF22_MAX_MESSAGE_LEN
#define RH_RF22_MAX_MESSAGE_LEN 50
#define MINIMUM_TIMEOUT         100
 
namespace Artemis {
namespace Devices {
  class RFM23 {
  public:
    struct __attribute__((packed)) rfm23_config {
      uint16_t freq;
      uint8_t  tx_power;
      struct {
        uint8_t spi_miso;
        uint8_t spi_mosi;
        uint8_t spi_sck;
        uint8_t nirq;
        uint8_t cs;
        uint8_t tx_on;
        uint8_t rx_on;
      } pins;
    };
 
    RFM23(uint8_t slaveSelectPin, uint8_t interruptPin,
          RHGenericSPI &spi = hardware_spi1);
    bool    init(rfm23_config cfg, Threads::Mutex *mtx);
    void    reset();
    bool    send(PacketComm &packet);
    int32_t recv(PacketComm &packet, uint16_t timeout);
 
  private:
    RH_RF22         rfm23;
    Threads::Mutex *spi_mtx;
    rfm23_config    config;
  };
} // namespace Devices
} // namespace Artemis
 
#endif // _RFM23_H