From 12b824fb15a37cdcdfa3e92c9e912a07cc6f7a24 Mon Sep 17 00:00:00 2001 From: Alessandro Zummo Date: Mon, 27 Mar 2006 01:16:35 -0800 Subject: [PATCH] [PATCH] RTC subsystem: ARM cleanup This patch removes from the ARM subsytem some of the rtc-related functions that have been included in the RTC subsystem. It also fixes some naming collisions. Signed-off-by: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/Kconfig | 3 ++ arch/arm/common/rtctime.c | 108 +++++--------------------------------- drivers/char/Kconfig | 2 +- include/asm-arm/rtc.h | 3 -- 4 files changed, 17 insertions(+), 99 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index bf2e72698d02..9731b3f826ab 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -8,6 +8,7 @@ mainmenu "Linux Kernel Configuration" config ARM bool default y + select RTC_LIB help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and @@ -839,6 +840,8 @@ source "drivers/usb/Kconfig" source "drivers/mmc/Kconfig" +source "drivers/rtc/Kconfig" + endmenu source "fs/Kconfig" diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c index e851d86c212c..35c9a64ac14c 100644 --- a/arch/arm/common/rtctime.c +++ b/arch/arm/common/rtctime.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -42,89 +43,6 @@ 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. @@ -151,13 +69,13 @@ void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc } } -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; @@ -168,7 +86,7 @@ static inline int rtc_set_time(struct rtc_ops *ops, struct rtc_time *tm) 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) { @@ -178,7 +96,7 @@ static inline int rtc_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm) 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) @@ -266,7 +184,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, 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)); @@ -288,11 +206,11 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, 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)); @@ -310,7 +228,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, ret = -EFAULT; break; } - ret = rtc_set_time(ops, &tm); + ret = rtc_arm_set_time(ops, &tm); break; case RTC_EPOCH_SET: @@ -341,11 +259,11 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, 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)); @@ -435,7 +353,7 @@ static int rtc_read_proc(char *page, char **start, off_t off, int count, int *eo 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" @@ -445,7 +363,7 @@ static int rtc_read_proc(char *page, char **start, off_t off, int count, int *eo 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); diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index facc3f1d9e37..73d30bf01582 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -696,7 +696,7 @@ config NVRAM config RTC tristate "Enhanced Real Time Clock Support" - depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV + depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM ---help--- If you say Y here and create a character special file /dev/rtc with major number 10 and minor number 135 using mknod ("man mknod"), you diff --git a/include/asm-arm/rtc.h b/include/asm-arm/rtc.h index 370dfe77589d..1a5c9232a91e 100644 --- a/include/asm-arm/rtc.h +++ b/include/asm-arm/rtc.h @@ -25,9 +25,6 @@ struct rtc_ops { int (*proc)(char *buf); }; -void rtc_time_to_tm(unsigned long, struct rtc_time *); -int rtc_tm_to_time(struct rtc_time *, unsigned long *); -int rtc_valid_tm(struct rtc_time *); void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *); void rtc_update(unsigned long, unsigned long); int register_rtc(struct rtc_ops *); -- 2.20.1