kernel/machine/malta/Serial.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef SERIAL_H
#define SERIAL_H

#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/machine/Serial.h"
#include "pedigree/kernel/processor/types.h"

class MaltaSerial : public Serial
{
  public:
    MaltaSerial();
    ~MaltaSerial();

    virtual void setBase(uintptr_t nBaseAddr);

    virtual void write(char c);

    virtual char read();
    virtual char readNonBlock();

  private:
    MaltaSerial(const MaltaSerial &);
    MaltaSerial &operator=(const MaltaSerial &);

    struct serial
    {
        uint8_t rxtx;
        uint8_t inten;
        uint8_t iififo;
        uint8_t lctrl;
        uint8_t mctrl;
        uint8_t lstat;
        uint8_t mstat;
        uint8_t scratch;
    } PACKED;
    const char *m_pBuffer;

    volatile serial *m_pRegs;

    bool isConnected();
};

#endif