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//
// si/rtc.c: RTC routines
//
// CEN64: Cycle-Accurate Nintendo 64 Emulator.
// Copyright (C) 2016, Mike Ryan.
//
// This file is subject to the terms and conditions defined in
// 'LICENSE', which is part of this source code package.
//
#include "common.h"
#include "local_time.h"
int rtc_status(uint8_t *send_buf, uint8_t send_bytes,
uint8_t *recv_buf, uint8_t recv_bytes) {
recv_buf[0] = 0x00;
recv_buf[1] = 0x10;
recv_buf[2] = 0x00;
return 0;
}
int rtc_read(uint8_t *send_buf, uint8_t send_bytes,
uint8_t *recv_buf, uint8_t recv_bytes) {
struct time_stamp now;
// FIXME is this needed?
memset(recv_buf, 0, recv_bytes);
// read RTC block
switch (send_buf[1]) {
case 0:
recv_buf[0] = 0x02;
break;
case 1:
debug("RTC cannot read block 1\n");
return 1;
case 2:
get_local_time(&now);
recv_buf[0] = byte2bcd(now.sec);
recv_buf[1] = byte2bcd(now.min);
recv_buf[2] = 0x80 + byte2bcd(now.hour);
recv_buf[3] = byte2bcd(now.day);
recv_buf[4] = byte2bcd(now.week_day);
recv_buf[5] = byte2bcd(now.month);
recv_buf[6] = byte2bcd(now.year);
recv_buf[7] = byte2bcd(now.year / 100);
recv_buf[8] = 0x00; // status
break;
default:
debug("RTC unknown block\n");
return 1;
}
return 0;
}
int rtc_write(uint8_t *send_buf, uint8_t send_bytes,
uint8_t *recv_buf, uint8_t recv_bytes) {
debug("RTC write not implemented\n");
return 1;
}
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