PL011.h

Go to the documentation of this file.

/*
 * Copyright (C) 2015 Niek Linnenbank
 * Copyright (C) 2013 Goswin von Brederlow <goswin-v-b@web.de>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __SERVER_SERIAL_PL011_H
#define __SERVER_SERIAL_PL011_H
 
#include <Log.h>
#include <Types.h>
#include "SerialDevice.h"
 
class PL011 : public SerialDevice
{
  private:
 
    enum {
        PL011_DR        = (0x00),
        PL011_RSRECR    = (0x04),
 
        PL011_FR        = (0x18),
        PL011_FR_RXFE   = (1 << 4),
        PL011_FR_TXFE   = (1 << 7),
 
        PL011_ILPR      = (0x20),
        PL011_IBRD      = (0x24),
        PL011_FBRD      = (0x28),
 
        PL011_LCRH      = (0x2C),
        PL011_LCRH_WLEN_8BIT = (0b11<<5),
 
        PL011_CR        = (0x30),
        PL011_IFLS      = (0x34),
 
        PL011_IMSC      = (0x38),
        PL011_IMSC_RXIM = (1 << 4),
        PL011_IMSC_TXIM = (1 << 5),
 
        PL011_RIS       = (0x3C),
 
        PL011_MIS       = (0x40),
        PL011_MIS_RXMIS = (1 << 4),
        PL011_MIS_TXMIS = (1 << 5),
 
        PL011_ICR       = (0x44),
        PL011_ICR_TXIC  = (1 << 5),
        PL011_ICR_RXIC  = (1 << 4),
 
        PL011_DMACR     = (0x48),
        PL011_ITCR      = (0x80),
        PL011_ITIP      = (0x84),
        PL011_ITOP      = (0x88),
        PL011_TDR       = (0x8C)
    };
 
  public:
 
    PL011(const u32 irq);
 
    virtual FileSystem::Result initialize();
 
    virtual FileSystem::Result interrupt(const Size vector);
 
    virtual FileSystem::Result read(IOBuffer & buffer,
                                    Size & size,
                                    const Size offset);
 
    virtual FileSystem::Result write(IOBuffer & buffer,
                                     Size & size,
                                     const Size offset);
};
 
#endif /* __SERVER_SERIAL_PL011_H */