/* Retrieve the current date and time from the real time clock. */ static void get_rtc_time(struct rtc_time *t) { void __iomem *regs = mstk48t02_regs; u8 tmp; spin_lock_irq(&mostek_lock); tmp = mostek_read(regs + MOSTEK_CREG); tmp |= MSTK_CREG_READ; mostek_write(regs + MOSTEK_CREG, tmp); t->sec = MSTK_REG_SEC(regs); t->min = MSTK_REG_MIN(regs); t->hour = MSTK_REG_HOUR(regs); t->dow = MSTK_REG_DOW(regs); t->dom = MSTK_REG_DOM(regs); t->month = MSTK_REG_MONTH(regs); t->year = MSTK_CVT_YEAR( MSTK_REG_YEAR(regs) ); tmp = mostek_read(regs + MOSTEK_CREG); tmp &= ~MSTK_CREG_READ; mostek_write(regs + MOSTEK_CREG, tmp); spin_unlock_irq(&mostek_lock); }
/* Retrieve the current date and time from the real time clock. */ void get_rtc_time(struct rtc_time *t) { unsigned long regs = mstk48t02_regs; unsigned long flags; u8 tmp; save_flags(flags); cli(); tmp = mostek_read(regs + MOSTEK_CREG); tmp |= MSTK_CREG_READ; mostek_write(regs + MOSTEK_CREG, tmp); t->sec = MSTK_REG_SEC(regs); t->min = MSTK_REG_MIN(regs); t->hour = MSTK_REG_HOUR(regs); t->dow = MSTK_REG_DOW(regs); t->dom = MSTK_REG_DOM(regs); t->month = MSTK_REG_MONTH(regs); t->year = MSTK_CVT_YEAR( MSTK_REG_YEAR(regs) ); tmp = mostek_read(regs + MOSTEK_CREG); tmp &= ~MSTK_CREG_READ; mostek_write(regs + MOSTEK_CREG, tmp); restore_flags(flags); }