sortix-mirror/kernel/x86-family/cmos.h

55 lines
1.5 KiB
C++

/*
* Copyright (c) 2013 Jonas 'Sortie' Termansen.
*
* 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.
*
* x86-family/cmos.h
* Provides access to CMOS and the real-time clock.
*/
#ifndef SORTIX_X86_FAMILY_CMOS_H
#define SORTIX_X86_FAMILY_CMOS_H
#include <sortix/timespec.h>
namespace Sortix {
namespace CMOS {
uint8_t Read(uint8_t reg);
uint8_t Write(uint8_t reg, uint8_t val);
struct cmos_tm
{
uint8_t seconds;
uint8_t minutes;
uint8_t hours;
uint8_t weekday; /* Supposedly not reliably set in CMOS. */
uint8_t day_of_month;
uint8_t month;
uint8_t year;
uint8_t century;
};
struct timespec DecodeTime(struct cmos_tm time);
struct cmos_tm EncodeTIme(struct timespec time);
struct cmos_tm GetTime();
void SetTime(struct cmos_tm time);
void Init();
} // namespace CMOS
} // namespace Sortix
#endif