chsys.h File Reference

System related macros and structures. More...

Go to the source code of this file.

Macros
#define	chSysGetRealtimeCounterX()   (rtcnt_t)port_rt_get_counter_value()
	Returns the current value of the system real time counter. More...
#define	chSysSwitch(ntp, otp)
	Performs a context switch. More...
Masks of executable integrity checks.
#define	CH_INTEGRITY_RLIST   1U
#define	CH_INTEGRITY_VTLIST   2U
#define	CH_INTEGRITY_REGISTRY   4U
#define	CH_INTEGRITY_PORT   8U
ISRs abstraction macros
#define	CH_IRQ_IS_VALID_PRIORITY(prio)   PORT_IRQ_IS_VALID_PRIORITY(prio)
	Priority level validation macro. More...
#define	CH_IRQ_IS_VALID_KERNEL_PRIORITY(prio)   PORT_IRQ_IS_VALID_KERNEL_PRIORITY(prio)
	Priority level validation macro. More...
#define	CH_IRQ_PROLOGUE()
	IRQ handler enter code. More...
#define	CH_IRQ_EPILOGUE()
	IRQ handler exit code. More...
#define	CH_IRQ_HANDLER(id)   PORT_IRQ_HANDLER(id)
	Standard normal IRQ handler declaration. More...
Fast ISRs abstraction macros
#define	CH_FAST_IRQ_HANDLER(id)   PORT_FAST_IRQ_HANDLER(id)
	Standard fast IRQ handler declaration. More...
Time conversion utilities for the realtime counter
#define	S2RTC(freq, sec)   ((freq) * (sec))
	Seconds to realtime counter. More...
#define	MS2RTC(freq, msec)   (rtcnt_t)((((freq) + 999UL) / 1000UL) * (msec))
	Milliseconds to realtime counter. More...
#define	US2RTC(freq, usec)   (rtcnt_t)((((freq) + 999999UL) / 1000000UL) * (usec))
	Microseconds to realtime counter. More...
#define	RTC2S(freq, n)   ((((n) - 1UL) / (freq)) + 1UL)
	Realtime counter cycles to seconds. More...
#define	RTC2MS(freq, n)   ((((n) - 1UL) / ((freq) / 1000UL)) + 1UL)
	Realtime counter cycles to milliseconds. More...
#define	RTC2US(freq, n)   ((((n) - 1UL) / ((freq) / 1000000UL)) + 1UL)
	Realtime counter cycles to microseconds. More...

Functions
void	chSysInit (void)
	ChibiOS/RT initialization. More...
bool	chSysIntegrityCheckI (unsigned testmask)
	System integrity check. More...
void	chSysTimerHandlerI (void)
	Handles time ticks for round robin preemption and timer increments. More...
syssts_t	chSysGetStatusAndLockX (void)
	Returns the execution status and enters a critical zone. More...
void	chSysRestoreStatusX (syssts_t sts)
	Restores the specified execution status and leaves a critical zone. More...
bool	chSysIsCounterWithinX (rtcnt_t cnt, rtcnt_t start, rtcnt_t end)
	Realtime window test. More...
void	chSysPolledDelayX (rtcnt_t cycles)
	Polled delay. More...
static void	chSysDisable (void)
	Raises the system interrupt priority mask to the maximum level. More...
static void	chSysSuspend (void)
	Raises the system interrupt priority mask to system level. More...
static void	chSysEnable (void)
	Lowers the system interrupt priority mask to user level. More...
static void	chSysLock (void)
	Enters the kernel lock state. More...
static void	chSysUnlock (void)
	Leaves the kernel lock state. More...
static void	chSysLockFromISR (void)
	Enters the kernel lock state from within an interrupt handler. More...
static void	chSysUnlockFromISR (void)
	Leaves the kernel lock state from within an interrupt handler. More...
static void	chSysUnconditionalLock (void)
	Unconditionally enters the kernel lock state. More...
static void	chSysUnconditionalUnlock (void)
	Unconditionally leaves the kernel lock state. More...
static thread_t *	chSysGetIdleThreadX (void)
	Returns a pointer to the idle thread. More...

Detailed Description

System related macros and structures.

Definition in file chsys.h.