-/*
- * Dallas Semiconductors 1603 RTC driver
+/*
+ * Dallas Semiconductors 1603 RTC driver
*
- * Brian Murphy <brian@murphy.dk>
+ * Brian Murphy <brian@murphy.dk>
*
*/
#include <linux/kernel.h>
#include <asm/lasat/lasat.h>
#include <linux/delay.h>
#include <asm/lasat/ds1603.h>
+#include <asm/time.h>
#include "ds1603.h"
struct ds_defs *ds1603 = NULL;
/* HW specific register functions */
-static void rtc_reg_write(unsigned long val)
+static void rtc_reg_write(unsigned long val)
{
*ds1603->reg = val;
}
-static unsigned long rtc_reg_read(void)
+static unsigned long rtc_reg_read(void)
{
unsigned long tmp = *ds1603->reg;
return tmp;
{
unsigned int data;
- data = (rtc_datareg_read() & (1 << ds1603->data_read_shift))
+ data = (rtc_datareg_read() & (1 << ds1603->data_read_shift))
>> ds1603->data_read_shift;
rtc_cycle_clock(rtc_reg_read());
return data;
unsigned long ds1603_read(void)
{
unsigned long word;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
rtc_init_op();
rtc_write_byte(READ_TIME_CMD);
word = rtc_read_word();
rtc_end_op();
+ spin_unlock_irqrestore(&rtc_lock, flags);
return word;
}
int ds1603_set(unsigned long time)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
rtc_init_op();
rtc_write_byte(SET_TIME_CMD);
rtc_write_word(time);
rtc_end_op();
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}