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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-04-20 12:30:41 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-05-22 14:56:40 +0100
commit797276ec9e4d2ee210e11068a2ce815394fe8c58 (patch)
treed97f8f1725d51adce785b51f508dafb582ee8265
parent7da285b626860eb6d35e08ae33eba90f0e83ad58 (diff)
[RTC] rtc-sa1100: remove dependence on asm/rtc.h
Move the two functions rtc-sa1100 wants from the old ARM RTC library into the rtc-sa1100 driver. Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--drivers/rtc/rtc-sa1100.c37
1 files changed, 36 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 82f62d25f92..e31a687b44b 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -33,7 +33,6 @@
#include <asm/hardware.h>
#include <asm/irq.h>
-#include <asm/rtc.h>
#ifdef CONFIG_ARCH_PXA
#include <asm/arch/pxa-regs.h>
@@ -47,6 +46,42 @@ static unsigned long rtc_freq = 1024;
static struct rtc_time rtc_alarm;
static DEFINE_SPINLOCK(sa1100_rtc_lock);
+static inline int rtc_periodic_alarm(struct rtc_time *tm)
+{
+ return (tm->tm_year == -1) ||
+ ((unsigned)tm->tm_mon >= 12) ||
+ ((unsigned)(tm->tm_mday - 1) >= 31) ||
+ ((unsigned)tm->tm_hour > 23) ||
+ ((unsigned)tm->tm_min > 59) ||
+ ((unsigned)tm->tm_sec > 59);
+}
+
+/*
+ * Calculate the next alarm time given the requested alarm time mask
+ * and the current time.
+ */
+static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc_time *alrm)
+{
+ unsigned long next_time;
+ unsigned long now_time;
+
+ next->tm_year = now->tm_year;
+ next->tm_mon = now->tm_mon;
+ next->tm_mday = now->tm_mday;
+ next->tm_hour = alrm->tm_hour;
+ next->tm_min = alrm->tm_min;
+ next->tm_sec = alrm->tm_sec;
+
+ rtc_tm_to_time(now, &now_time);
+ rtc_tm_to_time(next, &next_time);
+
+ if (next_time < now_time) {
+ /* Advance one day */
+ next_time += 60 * 60 * 24;
+ rtc_time_to_tm(next_time, next);
+ }
+}
+
static int rtc_update_alarm(struct rtc_time *alrm)
{
struct rtc_time alarm_tm, now_tm;