Example #1
0
/*
 * @implemented
 */
BOOLEAN
NTAPI
HalQueryRealTimeClock(OUT PTIME_FIELDS Time)
{
    /* FIXME: Acquire CMOS Lock */

    /* Loop while update is in progress */
    while ((HalpReadCmos(RTC_REGISTER_A)) & RTC_REG_A_UIP);

    /* Set the time data */
    Time->Second = BCD_INT(HalpReadCmos(0));
    Time->Minute = BCD_INT(HalpReadCmos(2));
    Time->Hour = BCD_INT(HalpReadCmos(4));
    Time->Weekday = BCD_INT(HalpReadCmos(6));
    Time->Day = BCD_INT(HalpReadCmos(7));
    Time->Month = BCD_INT(HalpReadCmos(8));
    Time->Year = BCD_INT(HalpReadCmos(9));
    Time->Milliseconds = 0;

    /* FIXME: Check century byte */

    /* Compensate for the century field */
    Time->Year += (Time->Year > 80) ? 1900: 2000;

    /* FIXME: Release CMOS Lock */

    /* Always return TRUE */
    return TRUE;
}
Example #2
0
ULONG
LlbHwRtcRead(VOID)
{
    /* Issue the GET_TIME request on the RTC control register */
    LlbHwOmap3TwlWrite1(0x4B, 0x29, 0x41);

    /* Read the BCD registers and convert them */
    LlbTime.Second = BCD_INT(LlbHwOmap3TwlRead1(0x4B, 0x1C));
    LlbTime.Minute = BCD_INT(LlbHwOmap3TwlRead1(0x4B, 0x1D));
    LlbTime.Hour = BCD_INT(LlbHwOmap3TwlRead1(0x4B, 0x1E));
    LlbTime.Day = BCD_INT(LlbHwOmap3TwlRead1(0x4B, 0x1F));
    LlbTime.Month = BCD_INT(LlbHwOmap3TwlRead1(0x4B, 0x20));
    LlbTime.Year = BCD_INT(LlbHwOmap3TwlRead1(0x4B, 0x21));
    LlbTime.Year += (LlbTime.Year > 80) ? 1900 : 2000;
    return 0;
}
Example #3
0
//==================
// Initialize RTC
//==================
void Init_RTC(uint32_t do_adj, uint8_t year, uint8_t month,  uint8_t day,
              uint8_t week,    uint8_t hour, uint8_t minute, uint8_t second)
{
    // Initialize I2C
    if (I2CInit((uint32_t) I2CMASTER) == FALSE )
    {
      while (1); // Error Trap
    }

    // Initialize RTC
    if (do_adj)
    {
        Wait_N_Ticks(100); // wait 1000ms
        //
        RTC_Write_Reg(RTC_CONTROL1, 0x20); // STOP
        RTC_Write_Reg(RTC_CONTROL2, 0x00);
        //
        RTC_Write_Reg(RTC_HOURS,   BCD_INT(hour));
        RTC_Write_Reg(RTC_MINUTES, BCD_INT(minute));
        RTC_Write_Reg(RTC_SECONDS, BCD_INT(second));
        //
        RTC_Write_Reg(RTC_YEARS,    BCD_INT(year));
        RTC_Write_Reg(RTC_C_MONTHS, BCD_INT(month));
        RTC_Write_Reg(RTC_DAYS,     BCD_INT(day));
        RTC_Write_Reg(RTC_WEEKDAYS, BCD_INT(week));
        //
        RTC_Write_Reg(RTC_MINUTE_ALARM,  0x00);
        RTC_Write_Reg(RTC_HOUR_ALARM,    0x00);
        RTC_Write_Reg(RTC_DAY_ALARM,     0x00);
        RTC_Write_Reg(RTC_WEEKDAY_ALARM, 0x00);
        //
        RTC_Write_Reg(RTC_CLKOUT_FREQ,  0x00);
        RTC_Write_Reg(RTC_TIMER_CONTROL,0x00);
        RTC_Write_Reg(RTC_TIMER,        0x00);
        //
        RTC_Write_Reg(RTC_CONTROL1, 0x00); // START
    }
}