Real-Time Clock Subsystem. More...

Macros
#define	JOYBUS_RTC_IDENTIFIER 0x1000
	Joybus real-time clock identifier. More...

#define	JOYBUS_RTC_WRITE_BLOCK_DELAY 20
	Duration (in milliseconds) to wait after writing a Joybus RTC block. More...

#define	JOYBUS_RTC_WRITE_FINISHED_DELAY 500
	Duration (in milliseconds) to wait after setting Joybus RTC time. More...

#define	JOYBUS_RTC_STATUS_RUNNING 0x00
	The Joybus RTC is running. More...

#define	JOYBUS_RTC_STATUS_STOPPED 0x80
	The Joybus RTC is stopped. More...

#define	JOYBUS_RTC_CONTROL_MODE_SET 0x0004
	Control mode for setting the Joybus RTC date/time. More...

#define	JOYBUS_RTC_CONTROL_MODE_RUN 0x0300
	Control mode for normal operation of the Joybus RTC. More...

#define	RTC_GET_CACHE_INVALIDATE_TICKS (TICKS_PER_SECOND)
	Invalidate the most-recent RTC time cache after 1 second.

Enumerations
enum	rtc_type_t { RTC_NONE = 0 , RTC_JOYBUS = 1 , RTC_DD = 2 , RTC_UNKNOWN = -1 }
	Real-time clock detection values. More...

Functions
bool	rtc_init (void)
	High-level convenience helper to initialize the RTC subsystem. More...

void	rtc_close (void)
	Close the RTC Subsystem, disabling system hooks. More...

void	rtc_normalize_time (rtc_time_t *rtc_time)
	Calculate sane values for arbitrary time inputs. More...

bool	rtc_get (rtc_time_t *rtc_time)
	Read the current date/time from the real-time clock. More...

bool	rtc_set (rtc_time_t *write_time)
	High-level convenience helper to set the RTC date/time. More...

bool	rtc_is_writable (void)
	Determine whether the RTC supports writing the time. More...

Detailed Description

Real-Time Clock Subsystem.

Macros