diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/s3c24x0_rtc.c | 130 |
1 files changed, 66 insertions, 64 deletions
diff --git a/drivers/rtc/s3c24x0_rtc.c b/drivers/rtc/s3c24x0_rtc.c index e10db9a..1ce34e3 100644 --- a/drivers/rtc/s3c24x0_rtc.c +++ b/drivers/rtc/s3c24x0_rtc.c @@ -37,6 +37,7 @@ #endif #include <rtc.h> +#include <asm/io.h> /*#define DEBUG*/ @@ -48,112 +49,113 @@ typedef enum { static inline void SetRTC_Access(RTC_ACCESS a) { - S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC(); + struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc(); + switch (a) { - case RTC_ENABLE: - rtc->RTCCON |= 0x01; break; + case RTC_ENABLE: + writeb(readb(&rtc->RTCCON) | 0x01, &rtc->RTCCON); + break; - case RTC_DISABLE: - rtc->RTCCON &= ~0x01; break; + case RTC_DISABLE: + writeb(readb(&rtc->RTCCON) & ~0x01, &rtc->RTCCON); + break; } } /* ------------------------------------------------------------------------- */ -int rtc_get (struct rtc_time *tmp) +int rtc_get(struct rtc_time *tmp) { - S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC(); + struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc(); uchar sec, min, hour, mday, wday, mon, year; - uchar a_sec,a_min, a_hour, a_date, a_mon, a_year, a_armed; + uchar a_sec, a_min, a_hour, a_date, a_mon, a_year, a_armed; /* enable access to RTC registers */ SetRTC_Access(RTC_ENABLE); /* read RTC registers */ do { - sec = rtc->BCDSEC; - min = rtc->BCDMIN; - hour = rtc->BCDHOUR; - mday = rtc->BCDDATE; - wday = rtc->BCDDAY; - mon = rtc->BCDMON; - year = rtc->BCDYEAR; - } while (sec != rtc->BCDSEC); + sec = readb(&rtc->BCDSEC); + min = readb(&rtc->BCDMIN); + hour = readb(&rtc->BCDHOUR); + mday = readb(&rtc->BCDDATE); + wday = readb(&rtc->BCDDAY); + mon = readb(&rtc->BCDMON); + year = readb(&rtc->BCDYEAR); + } while (sec != readb(&rtc->BCDSEC)); /* read ALARM registers */ - a_sec = rtc->ALMSEC; - a_min = rtc->ALMMIN; - a_hour = rtc->ALMHOUR; - a_date = rtc->ALMDATE; - a_mon = rtc->ALMMON; - a_year = rtc->ALMYEAR; - a_armed = rtc->RTCALM; + a_sec = readb(&rtc->ALMSEC); + a_min = readb(&rtc->ALMMIN); + a_hour = readb(&rtc->ALMHOUR); + a_date = readb(&rtc->ALMDATE); + a_mon = readb(&rtc->ALMMON); + a_year = readb(&rtc->ALMYEAR); + a_armed = readb(&rtc->RTCALM); /* disable access to RTC registers */ SetRTC_Access(RTC_DISABLE); #ifdef RTC_DEBUG - printf ( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x " - "hr: %02x min: %02x sec: %02x\n", - year, mon, mday, wday, - hour, min, sec); - printf ( "Alarms: %02x: year: %02x month: %02x date: %02x hour: %02x min: %02x sec: %02x\n", - a_armed, - a_year, a_mon, a_date, - a_hour, a_min, a_sec); + printf("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x " + "hr: %02x min: %02x sec: %02x\n", + year, mon, mday, wday, hour, min, sec); + printf("Alarms: %02x: year: %02x month: %02x date: %02x hour: " + "%02x min: %02x sec: %02x\n", + a_armed, a_year, a_mon, a_date, a_hour, a_min, a_sec); #endif - tmp->tm_sec = bcd2bin(sec & 0x7F); - tmp->tm_min = bcd2bin(min & 0x7F); + tmp->tm_sec = bcd2bin(sec & 0x7F); + tmp->tm_min = bcd2bin(min & 0x7F); tmp->tm_hour = bcd2bin(hour & 0x3F); tmp->tm_mday = bcd2bin(mday & 0x3F); tmp->tm_mon = bcd2bin(mon & 0x1F); tmp->tm_year = bcd2bin(year); tmp->tm_wday = bcd2bin(wday & 0x07); - if(tmp->tm_year<70) - tmp->tm_year+=2000; + if (tmp->tm_year < 70) + tmp->tm_year += 2000; else - tmp->tm_year+=1900; - tmp->tm_yday = 0; - tmp->tm_isdst= 0; + tmp->tm_year += 1900; + tmp->tm_yday = 0; + tmp->tm_isdst = 0; #ifdef RTC_DEBUG - printf ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", - tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, - tmp->tm_hour, tmp->tm_min, tmp->tm_sec); + printf("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", + tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, + tmp->tm_hour, tmp->tm_min, tmp->tm_sec); #endif return 0; } -int rtc_set (struct rtc_time *tmp) +int rtc_set(struct rtc_time *tmp) { - S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC(); + struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc(); uchar sec, min, hour, mday, wday, mon, year; #ifdef RTC_DEBUG - printf ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", - tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, - tmp->tm_hour, tmp->tm_min, tmp->tm_sec); + printf("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", + tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, + tmp->tm_hour, tmp->tm_min, tmp->tm_sec); #endif - year = bin2bcd(tmp->tm_year % 100); - mon = bin2bcd(tmp->tm_mon); - wday = bin2bcd(tmp->tm_wday); - mday = bin2bcd(tmp->tm_mday); - hour = bin2bcd(tmp->tm_hour); - min = bin2bcd(tmp->tm_min); - sec = bin2bcd(tmp->tm_sec); + year = bin2bcd(tmp->tm_year % 100); + mon = bin2bcd(tmp->tm_mon); + wday = bin2bcd(tmp->tm_wday); + mday = bin2bcd(tmp->tm_mday); + hour = bin2bcd(tmp->tm_hour); + min = bin2bcd(tmp->tm_min); + sec = bin2bcd(tmp->tm_sec); /* enable access to RTC registers */ SetRTC_Access(RTC_ENABLE); /* write RTC registers */ - rtc->BCDSEC = sec; - rtc->BCDMIN = min; - rtc->BCDHOUR = hour; - rtc->BCDDATE = mday; - rtc->BCDDAY = wday; - rtc->BCDMON = mon; - rtc->BCDYEAR = year; + writeb(sec, &rtc->BCDSEC); + writeb(min, &rtc->BCDMIN); + writeb(hour, &rtc->BCDHOUR); + writeb(mday, &rtc->BCDDATE); + writeb(wday, &rtc->BCDDAY); + writeb(mon, &rtc->BCDMON); + writeb(year, &rtc->BCDYEAR); /* disable access to RTC registers */ SetRTC_Access(RTC_DISABLE); @@ -161,12 +163,12 @@ int rtc_set (struct rtc_time *tmp) return 0; } -void rtc_reset (void) +void rtc_reset(void) { - S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC(); + struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc(); - rtc->RTCCON = (rtc->RTCCON & ~0x06) | 0x08; - rtc->RTCCON &= ~(0x08|0x01); + writeb((readb(&rtc->RTCCON) & ~0x06) | 0x08, &rtc->RTCCON); + writeb(readb(&rtc->RTCCON) & ~(0x08 | 0x01), &rtc->RTCCON); } #endif |