Time.h

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/*
 * Copyright (C) 2020 Niek Linnenbank
 * Copyright (C) 2009 Coen Bijlsma
 *
 * 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_TIME_TIME_H
#define __SERVER_TIME_TIME_H
 
#include <FreeNOS/System.h>
#include <Macros.h>
#include <Types.h>
#include <Device.h>
 
#define RTC_PORT(x) (0x70 + (x))
 
#define RTC_SECONDS             0
 
#define RTC_MINUTES             2
 
#define RTC_HOURS               4
 
#define RTC_DAY_OF_WEEK         6
 
#define RTC_DAY_OF_MONTH        7
 
#define RTC_MONTH               8
 
#define RTC_YEAR                9
 
#define CMOS_YEARS_OFFS         2000
 
#define RTC_STATUS_A        10
 
#define RTC_STATUS_B            11
 
#define RTC_UIP                 0x80
 
#define RTC_DLS                 0x01
 
#define RTC_24H                 0x02
 
#define RTC_BCD                 0x04
 
class Time : public Device
{
    public:
 
    Time(const u32 inode);
 
    virtual FileSystem::Result initialize();
 
    virtual FileSystem::Result read(IOBuffer & buffer,
                                    Size & size,
                                    const Size offset);
 
  private:
 
    unsigned char readCMOS(unsigned char addr);
 
    unsigned bcd2bin(unsigned char val);
 
  private:
 
    Arch::IO m_io;
};
 
#endif /* __SERVER_TIME_TIME_H */