#ifndef _UART_HH_
#define _UART_HH_

#include <cstdint>
#include <memory>

class OMAP35x_prcm;

#include "interfaces.hh"

class UART_impl;

class UART : public ICharacterDevice {
public:
  UART(uintptr_t base, int irq);
  ~UART();

  virtual void write(char const* data, int const& len);
  
  virtual int read(char *buf, int const& len);

private:
  std::unique_ptr<UART_impl> impl_;
};

class EarlyUART : public ICharacterDevice {
public:
  EarlyUART() {}
  ~EarlyUART() {}

  virtual void write(char const* data, int const& len);
  virtual int read(char *buf, int const& len);

private:
  void _wait_txnotfull();
  void _wait_rxnotempty();
  void sendb(char b);
  char recvb();
  
  uint8_t volatile& r_data();
  uint8_t volatile& r_lsr();
  uint8_t volatile& r_ssr();

  static const uintptr_t base_ = 0xfffff000;
};

#endif