original files of m241

vxworks-6.9/target/h/drv/timer/cycleLib.h

@@ -0,0 +1,85 @@
+/* cycleLib.h - clock cycle level event library header */
+
+/* Copyright 2005, 2018 Wind River Systems, Inc. */
+#include "copyright_wrs.h"
+
+/*
+modification history
+--------------------
+01b,25sep18,whu  move extern C declaration to the front of structure declaration
+                 (VXW6-86818)
+01a,06dec05,prb	 written.
+*/
+
+#ifndef	__INCcycleLibh
+#define	__INCcycleLibh
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#define	SET_RELOAD(x)
+#undef	SET_RELOAD
+
+typedef unsigned int CYCLE_TICK;
+typedef unsigned long long int CYCLE_CLOCK;
+
+typedef struct cycleLibEvent_t cycleLibEvent_t;
+typedef cycleLibEvent_t *CEVENT_ID;
+
+/*
+ * The event queue is a double linked delta queue.
+ *
+ * The next pointer points to the next element, or NULL if it is
+ * the last event in the queue.
+ *
+ * The prev pointer points t the previous element.  It's value is unspecified
+ * for the first element in the queue.
+ *
+ * The tick value is the number of ticks between the previous event
+ * and this event.
+ *
+ * The rate is the frequency, in ticks, of this event.  A value of 0
+ * implies this is not a repeating event.
+ *
+ * The base is only used for repeating events.  This is the absolute cycle
+ * value for the next event.
+ */
+struct cycleLibEvent_t {
+	CEVENT_ID	next;			/* Next event to fire */
+	CEVENT_ID	prev;			/* doubly linked list */
+	CYCLE_TICK	tick;			/* delta until event fires */
+	void		(*callback)(void *);	/* callback function */
+	void		*arg;			/* argument to callback */
+	CYCLE_TICK	rate;			/* rate if repeating event */
+	CYCLE_CLOCK	base;			/* time base if repeating */
+};
+
+
+extern void		cycleLibInit __P((void));
+extern int		cycleLibPoolAlloc __P((int, CEVENT_ID));
+extern void		cycleLibEventFree __P((CEVENT_ID));
+extern void		cycleLibEventHandler __P((void));
+extern CEVENT_ID	cycleLibEventAdd __P((CYCLE_TICK, void(*)(void *),
+				void *));
+extern CEVENT_ID	cycleLibEventAddRepeating __P((CYCLE_TICK, CYCLE_TICK,
+				void(*)(void *), void *));
+extern CEVENT_ID	cycleLibEventAddAbsolute __P((CYCLE_CLOCK,
+				void(*)(void *), void *, CEVENT_ID));
+extern void		cycleLibEventDelete __P((CEVENT_ID, void(*)(void *),
+				void *));
+__END_DECLS
+
+/*
+ * The values below should be set in a architecture specific location.
+ */
+
+#define	SET_TIMER(x)		vxDecSet(x)
+#define	GET_CYCLE_CLOCK()	gettb()
+
+__BEGIN_DECLS
+extern CYCLE_CLOCK		gettb __P((void));
+extern void			vxDecSet __P((unsigned));
+__END_DECLS
+
+#endif	/* __INCcycleLibh */