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rtc.h
Package: linux-2.4.20.tar.gz [view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 2k
Category:
Linux-Unix program
Development Platform:
Unix_Linux
- /*
- * Generic RTC interface.
- * This version contains the part of the user interface to the Real Time Clock
- * service. It is used with both the legacy mc146818 and also EFI
- * Struct rtc_time and first 12 ioctl by Paul Gortmaker, 1996 - separated out
- * from <linux/mc146818rtc.h> to this file for 2.4 kernels.
- *
- * Copyright (C) 1999 Hewlett-Packard Co.
- * Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
- */
- #ifndef _LINUX_RTC_H_
- #define _LINUX_RTC_H_
- /*
- * The struct used to pass data via the following ioctl. Similar to the
- * struct tm in <time.h>, but it needs to be here so that the kernel
- * source is self contained, allowing cross-compiles, etc. etc.
- */
- struct rtc_time {
- int tm_sec;
- int tm_min;
- int tm_hour;
- int tm_mday;
- int tm_mon;
- int tm_year;
- int tm_wday;
- int tm_yday;
- int tm_isdst;
- };
- /*
- * This data structure is inspired by the EFI (v0.92) wakeup
- * alarm API.
- */
- struct rtc_wkalrm {
- unsigned char enabled; /* 0 = alarm disable, 1 = alarm disabled */
- unsigned char pending; /* 0 = alarm pending, 1 = alarm not pending */
- struct rtc_time time; /* time the alarm is set to */
- };
- /*
- * ioctl calls that are permitted to the /dev/rtc interface, if
- * CONFIG_RTC/CONFIG_EFI_RTC was enabled.
- */
- #define RTC_AIE_ON _IO('p', 0x01) /* Alarm int. enable on */
- #define RTC_AIE_OFF _IO('p', 0x02) /* ... off */
- #define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */
- #define RTC_UIE_OFF _IO('p', 0x04) /* ... off */
- #define RTC_PIE_ON _IO('p', 0x05) /* Periodic int. enable on */
- #define RTC_PIE_OFF _IO('p', 0x06) /* ... off */
- #define RTC_WIE_ON _IO('p', 0x0f) /* Watchdog int. enable on */
- #define RTC_WIE_OFF _IO('p', 0x10) /* ... off */
- #define RTC_ALM_SET _IOW('p', 0x07, struct rtc_time) /* Set alarm time */
- #define RTC_ALM_READ _IOR('p', 0x08, struct rtc_time) /* Read alarm time */
- #define RTC_RD_TIME _IOR('p', 0x09, struct rtc_time) /* Read RTC time */
- #define RTC_SET_TIME _IOW('p', 0x0a, struct rtc_time) /* Set RTC time */
- #define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long) /* Read IRQ rate */
- #define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long) /* Set IRQ rate */
- #define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long) /* Read epoch */
- #define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long) /* Set epoch */
- #define RTC_WKALM_SET _IOW('p', 0x0f, struct rtc_wkalrm)/* Set wakeup alarm*/
- #define RTC_WKALM_RD _IOR('p', 0x10, struct rtc_wkalrm)/* Get wakeup alarm*/
- #endif /* _LINUX_RTC_H_ */