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-rw-r--r--include/asm-generic/rtc.h247
1 files changed, 0 insertions, 247 deletions
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
deleted file mode 100644
index 4e3b65583..000000000
--- a/include/asm-generic/rtc.h
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * include/asm-generic/rtc.h
- *
- * Author: Tom Rini <trini@mvista.com>
- *
- * Based on:
- * drivers/char/rtc.c
- *
- * Please read the COPYING file for all license details.
- */
-
-#ifndef __ASM_RTC_H__
-#define __ASM_RTC_H__
-
-#include <linux/mc146818rtc.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/delay.h>
-#ifdef CONFIG_ACPI
-#include <linux/acpi.h>
-#endif
-
-#define RTC_PIE 0x40 /* periodic interrupt enable */
-#define RTC_AIE 0x20 /* alarm interrupt enable */
-#define RTC_UIE 0x10 /* update-finished interrupt enable */
-
-/* some dummy definitions */
-#define RTC_BATT_BAD 0x100 /* battery bad */
-#define RTC_SQWE 0x08 /* enable square-wave output */
-#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */
-#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */
-
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char rtc_is_updating(void)
-{
- unsigned char uip;
- unsigned long flags;
-
- spin_lock_irqsave(&rtc_lock, flags);
- uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
- spin_unlock_irqrestore(&rtc_lock, flags);
- return uip;
-}
-
-static inline unsigned int __get_rtc_time(struct rtc_time *time)
-{
- unsigned char ctrl;
- unsigned long flags;
- unsigned char century = 0;
-
-#ifdef CONFIG_MACH_DECSTATION
- unsigned int real_year;
-#endif
-
- /*
- * read RTC once any update in progress is done. The update
- * can take just over 2ms. We wait 20ms. There is no need to
- * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
- * If you need to know *exactly* when a second has started, enable
- * periodic update complete interrupts, (via ioctl) and then
- * immediately read /dev/rtc which will block until you get the IRQ.
- * Once the read clears, read the RTC time (again via ioctl). Easy.
- */
- if (rtc_is_updating())
- mdelay(20);
-
- /*
- * Only the values that we read from the RTC are set. We leave
- * tm_wday, tm_yday and tm_isdst untouched. Even though the
- * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
- * by the RTC when initially set to a non-zero value.
- */
- spin_lock_irqsave(&rtc_lock, flags);
- time->tm_sec = CMOS_READ(RTC_SECONDS);
- time->tm_min = CMOS_READ(RTC_MINUTES);
- time->tm_hour = CMOS_READ(RTC_HOURS);
- time->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
- time->tm_mon = CMOS_READ(RTC_MONTH);
- time->tm_year = CMOS_READ(RTC_YEAR);
-#ifdef CONFIG_MACH_DECSTATION
- real_year = CMOS_READ(RTC_DEC_YEAR);
-#endif
-#ifdef CONFIG_ACPI
- if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
- acpi_gbl_FADT.century)
- century = CMOS_READ(acpi_gbl_FADT.century);
-#endif
- ctrl = CMOS_READ(RTC_CONTROL);
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- {
- time->tm_sec = bcd2bin(time->tm_sec);
- time->tm_min = bcd2bin(time->tm_min);
- time->tm_hour = bcd2bin(time->tm_hour);
- time->tm_mday = bcd2bin(time->tm_mday);
- time->tm_mon = bcd2bin(time->tm_mon);
- time->tm_year = bcd2bin(time->tm_year);
- century = bcd2bin(century);
- }
-
-#ifdef CONFIG_MACH_DECSTATION
- time->tm_year += real_year - 72;
-#endif
-
- if (century)
- time->tm_year += (century - 19) * 100;
-
- /*
- * Account for differences between how the RTC uses the values
- * and how they are defined in a struct rtc_time;
- */
- if (time->tm_year <= 69)
- time->tm_year += 100;
-
- time->tm_mon--;
-
- return RTC_24H;
-}
-
-#ifndef get_rtc_time
-#define get_rtc_time __get_rtc_time
-#endif
-
-/* Set the current date and time in the real time clock. */
-static inline int __set_rtc_time(struct rtc_time *time)
-{
- unsigned long flags;
- unsigned char mon, day, hrs, min, sec;
- unsigned char save_control, save_freq_select;
- unsigned int yrs;
-#ifdef CONFIG_MACH_DECSTATION
- unsigned int real_yrs, leap_yr;
-#endif
- unsigned char century = 0;
-
- yrs = time->tm_year;
- mon = time->tm_mon + 1; /* tm_mon starts at zero */
- day = time->tm_mday;
- hrs = time->tm_hour;
- min = time->tm_min;
- sec = time->tm_sec;
-
- if (yrs > 255) /* They are unsigned */
- return -EINVAL;
-
- spin_lock_irqsave(&rtc_lock, flags);
-#ifdef CONFIG_MACH_DECSTATION
- real_yrs = yrs;
- leap_yr = ((!((yrs + 1900) % 4) && ((yrs + 1900) % 100)) ||
- !((yrs + 1900) % 400));
- yrs = 72;
-
- /*
- * We want to keep the year set to 73 until March
- * for non-leap years, so that Feb, 29th is handled
- * correctly.
- */
- if (!leap_yr && mon < 3) {
- real_yrs--;
- yrs = 73;
- }
-#endif
-
-#ifdef CONFIG_ACPI
- if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
- acpi_gbl_FADT.century) {
- century = (yrs + 1900) / 100;
- yrs %= 100;
- }
-#endif
-
- /* These limits and adjustments are independent of
- * whether the chip is in binary mode or not.
- */
- if (yrs > 169) {
- spin_unlock_irqrestore(&rtc_lock, flags);
- return -EINVAL;
- }
-
- if (yrs >= 100)
- yrs -= 100;
-
- if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
- || RTC_ALWAYS_BCD) {
- sec = bin2bcd(sec);
- min = bin2bcd(min);
- hrs = bin2bcd(hrs);
- day = bin2bcd(day);
- mon = bin2bcd(mon);
- yrs = bin2bcd(yrs);
- century = bin2bcd(century);
- }
-
- save_control = CMOS_READ(RTC_CONTROL);
- CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
- save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
- CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-#ifdef CONFIG_MACH_DECSTATION
- CMOS_WRITE(real_yrs, RTC_DEC_YEAR);
-#endif
- CMOS_WRITE(yrs, RTC_YEAR);
- CMOS_WRITE(mon, RTC_MONTH);
- CMOS_WRITE(day, RTC_DAY_OF_MONTH);
- CMOS_WRITE(hrs, RTC_HOURS);
- CMOS_WRITE(min, RTC_MINUTES);
- CMOS_WRITE(sec, RTC_SECONDS);
-#ifdef CONFIG_ACPI
- if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
- acpi_gbl_FADT.century)
- CMOS_WRITE(century, acpi_gbl_FADT.century);
-#endif
-
- CMOS_WRITE(save_control, RTC_CONTROL);
- CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- return 0;
-}
-
-#ifndef set_rtc_time
-#define set_rtc_time __set_rtc_time
-#endif
-
-static inline unsigned int get_rtc_ss(void)
-{
- struct rtc_time h;
-
- get_rtc_time(&h);
- return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
- return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
- return -EINVAL;
-}
-
-#endif /* __ASM_RTC_H__ */
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