//
// Created by erki on 4.06.22.
//

#ifndef SKL_TUNNEL_RADIO_HW_INSTANCE_HPP
#define SKL_TUNNEL_RADIO_HW_INSTANCE_HPP

#include <hal_spi_m_sync.h>

#include "radio_hw_registers.hpp"

namespace radio
{

struct HwInstance
{
  enum class States : std::uint8_t
  {
    P_ON = 0,
    BUSY_RX,
    BUSY_TX,
    RX_ON,
    TRX_OFF,
    PLL_ON,
    SLEEP,
    PREP_DEEP_SLEEP,
    BUSY_RX_AACK,
    BUSY_TX_ARET,
    RX_AACK_ON,
    TX_ARET_ON
  };

  static HwInstance* instance();

  HwInstance();
  HwInstance(const HwInstance&) = delete;
  HwInstance(HwInstance&&) = delete;
  HwInstance& operator=(const HwInstance&) = delete;
  HwInstance& operator=(HwInstance&&) = delete;

  void irq_handler();

  uint8_t register_read(const Registers& address);
  void register_write(const Registers& address, const uint8_t value);

  States current_state() const;
  bool set_current_state(const States& new_state);
private:
  spi_m_sync_descriptor* m_spi = nullptr;
  io_descriptor* m_spi_io = nullptr;
  States m_current_state = States::P_ON;

  void m_wait_transition_complete();
};

}

#endif //SKL_TUNNEL_RADIO_HW_INSTANCE_HPP