[RFC][PATCH 2/6] RTC subsystem, ARM cleanup
From: Alessandro Zummo
Date: Tue Dec 20 2005 - 15:50:20 EST
This patch removes from the ARM subsytem some of the
rtc-related functions that have been included in
the RTC subsystem.
ARM Kconfig is modified to include the RTC subsystem.
Signed-off-by: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
--
arch/arm/Kconfig | 2
arch/arm/common/rtctime.c | 107 +++++-----------------------------------------
2 files changed, 14 insertions(+), 95 deletions(-)
--- linux-nslu2.orig/arch/arm/Kconfig 2005-12-20 19:52:43.000000000 +0100
+++ linux-nslu2/arch/arm/Kconfig 2005-12-20 20:36:09.000000000 +0100
@@ -750,6 +750,8 @@ source "drivers/usb/Kconfig"
source "drivers/mmc/Kconfig"
+source "drivers/rtc/Kconfig"
+
endmenu
source "fs/Kconfig"
--- linux-nslu2.orig/arch/arm/common/rtctime.c 2005-12-20 19:52:43.000000000 +0100
+++ linux-nslu2/arch/arm/common/rtctime.c 2005-12-20 20:36:09.000000000 +0100
@@ -40,89 +40,6 @@ static struct rtc_ops *rtc_ops;
#define rtc_epoch 1900UL
-static const unsigned char days_in_month[] = {
- 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-};
-
-#define LEAPS_THRU_END_OF(y) ((y)/4 - (y)/100 + (y)/400)
-#define LEAP_YEAR(year) ((!(year % 4) && (year % 100)) || !(year % 400))
-
-static int month_days(unsigned int month, unsigned int year)
-{
- return days_in_month[month] + (LEAP_YEAR(year) && month == 1);
-}
-
-/*
- * Convert seconds since 01-01-1970 00:00:00 to Gregorian date.
- */
-void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
-{
- int days, month, year;
-
- days = time / 86400;
- time -= days * 86400;
-
- tm->tm_wday = (days + 4) % 7;
-
- year = 1970 + days / 365;
- days -= (year - 1970) * 365
- + LEAPS_THRU_END_OF(year - 1)
- - LEAPS_THRU_END_OF(1970 - 1);
- if (days < 0) {
- year -= 1;
- days += 365 + LEAP_YEAR(year);
- }
- tm->tm_year = year - 1900;
- tm->tm_yday = days + 1;
-
- for (month = 0; month < 11; month++) {
- int newdays;
-
- newdays = days - month_days(month, year);
- if (newdays < 0)
- break;
- days = newdays;
- }
- tm->tm_mon = month;
- tm->tm_mday = days + 1;
-
- tm->tm_hour = time / 3600;
- time -= tm->tm_hour * 3600;
- tm->tm_min = time / 60;
- tm->tm_sec = time - tm->tm_min * 60;
-}
-EXPORT_SYMBOL(rtc_time_to_tm);
-
-/*
- * Does the rtc_time represent a valid date/time?
- */
-int rtc_valid_tm(struct rtc_time *tm)
-{
- if (tm->tm_year < 70 ||
- tm->tm_mon >= 12 ||
- tm->tm_mday < 1 ||
- tm->tm_mday > month_days(tm->tm_mon, tm->tm_year + 1900) ||
- tm->tm_hour >= 24 ||
- tm->tm_min >= 60 ||
- tm->tm_sec >= 60)
- return -EINVAL;
-
- return 0;
-}
-EXPORT_SYMBOL(rtc_valid_tm);
-
-/*
- * Convert Gregorian date to seconds since 01-01-1970 00:00:00.
- */
-int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
-{
- *time = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
- tm->tm_hour, tm->tm_min, tm->tm_sec);
-
- return 0;
-}
-EXPORT_SYMBOL(rtc_tm_to_time);
-
/*
* Calculate the next alarm time given the requested alarm time mask
* and the current time.
@@ -141,13 +58,13 @@ void rtc_next_alarm_time(struct rtc_time
next->tm_sec = alrm->tm_sec;
}
-static inline int rtc_read_time(struct rtc_ops *ops, struct rtc_time *tm)
+static inline int rtc_arm_read_time(struct rtc_ops *ops, struct rtc_time *tm)
{
memset(tm, 0, sizeof(struct rtc_time));
return ops->read_time(tm);
}
-static inline int rtc_set_time(struct rtc_ops *ops, struct rtc_time *tm)
+static inline int rtc_arm_set_time(struct rtc_ops *ops, struct rtc_time *tm)
{
int ret;
@@ -158,7 +75,7 @@ static inline int rtc_set_time(struct rt
return ret;
}
-static inline int rtc_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
+static inline int rtc_arm_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
{
int ret = -EINVAL;
if (ops->read_alarm) {
@@ -168,7 +85,7 @@ static inline int rtc_read_alarm(struct
return ret;
}
-static inline int rtc_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
+static inline int rtc_arm_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
{
int ret = -EINVAL;
if (ops->set_alarm)
@@ -256,7 +173,7 @@ static int rtc_ioctl(struct inode *inode
switch (cmd) {
case RTC_ALM_READ:
- ret = rtc_read_alarm(ops, &alrm);
+ ret = rtc_arm_read_alarm(ops, &alrm);
if (ret)
break;
ret = copy_to_user(uarg, &alrm.time, sizeof(tm));
@@ -278,11 +195,11 @@ static int rtc_ioctl(struct inode *inode
alrm.time.tm_wday = -1;
alrm.time.tm_yday = -1;
alrm.time.tm_isdst = -1;
- ret = rtc_set_alarm(ops, &alrm);
+ ret = rtc_arm_set_alarm(ops, &alrm);
break;
case RTC_RD_TIME:
- ret = rtc_read_time(ops, &tm);
+ ret = rtc_arm_read_time(ops, &tm);
if (ret)
break;
ret = copy_to_user(uarg, &tm, sizeof(tm));
@@ -300,7 +217,7 @@ static int rtc_ioctl(struct inode *inode
ret = -EFAULT;
break;
}
- ret = rtc_set_time(ops, &tm);
+ ret = rtc_arm_set_time(ops, &tm);
break;
case RTC_EPOCH_SET:
@@ -331,11 +248,11 @@ static int rtc_ioctl(struct inode *inode
ret = -EFAULT;
break;
}
- ret = rtc_set_alarm(ops, &alrm);
+ ret = rtc_arm_set_alarm(ops, &alrm);
break;
case RTC_WKALM_RD:
- ret = rtc_read_alarm(ops, &alrm);
+ ret = rtc_arm_read_alarm(ops, &alrm);
if (ret)
break;
ret = copy_to_user(uarg, &alrm, sizeof(alrm));
@@ -425,7 +342,7 @@ static int rtc_read_proc(char *page, cha
struct rtc_time tm;
char *p = page;
- if (rtc_read_time(ops, &tm) == 0) {
+ if (rtc_arm_read_time(ops, &tm) == 0) {
p += sprintf(p,
"rtc_time\t: %02d:%02d:%02d\n"
"rtc_date\t: %04d-%02d-%02d\n"
@@ -435,7 +352,7 @@ static int rtc_read_proc(char *page, cha
rtc_epoch);
}
- if (rtc_read_alarm(ops, &alrm) == 0) {
+ if (rtc_arm_read_alarm(ops, &alrm) == 0) {
p += sprintf(p, "alrm_time\t: ");
if ((unsigned int)alrm.time.tm_hour <= 24)
p += sprintf(p, "%02d:", alrm.time.tm_hour);
-
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