X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Ftimer.h;h=9e3e2b30f282d47944d0a24ed524d81e5e177973;hb=HEAD;hp=a75adfd26e1ec8dc8e5077cdeb38a7981b18d339;hpb=f5c3dd208e34a35779cb1ec315998e0eb4582578;p=bertos.git diff --git a/drv/timer.h b/drv/timer.h deleted file mode 100755 index a75adfd2..00000000 --- a/drv/timer.h +++ /dev/null @@ -1,198 +0,0 @@ -/*! - * \file - * - * - * \version $Id$ - * - * \author Bernardo Innocenti - * - * \brief Hardware independent timer driver (interface) - */ - -/*#* - *#* $Log$ - *#* Revision 1.21 2004/12/09 08:35:21 bernie - *#* Replace IPTR with iptr_t. - *#* - *#* Revision 1.20 2004/12/08 08:56:41 bernie - *#* Rename sigset_t to sigmask_t; Reformat. - *#* - *#* Revision 1.19 2004/12/08 08:30:37 bernie - *#* Convert to mtime_t; timer_minutes(): Remove. - *#* - *#* Revision 1.18 2004/11/16 23:09:52 bernie - *#* Disable timer_minutes() for targets with 16bit time_t. - *#* - *#* Revision 1.17 2004/11/16 22:37:14 bernie - *#* Replace IPTR with iptr_t. - *#* - *#* Revision 1.16 2004/08/25 14:12:08 rasky - *#* Aggiornato il comment block dei log RCS - *#* - *#* Revision 1.15 2004/08/10 06:59:09 bernie - *#* timer_gettick(): Rename to timer_ticks() and add backwards compatibility inline. - *#* - *#* Revision 1.12 2004/07/30 14:34:10 rasky - *#* Vari fix per documentazione e commenti - *#* Aggiunte PP_CATn e STATIC_ASSERT - *#* - *#* Revision 1.11 2004/07/29 22:40:12 bernie - *#* Spelling fix. - *#* - *#* Revision 1.10 2004/07/21 00:13:57 bernie - *#* Put timer driver on diet. - *#* - *#* Revision 1.9 2004/07/20 23:45:01 bernie - *#* Finally remove redundant protos. - *#* - *#* Revision 1.8 2004/07/18 21:57:32 bernie - *#* timer_gettick(): Rename to timer_tick() and document better. - *#* - *#* Revision 1.7 2004/06/27 15:26:17 aleph - *#* Declaration fix for build with GCC 3.4 - *#* - *#* Revision 1.6 2004/06/07 18:10:06 aleph - *#* Remove free pool of timers; use user-provided Timer structure instead - *#* - *#* Revision 1.5 2004/06/07 15:57:12 aleph - *#* Add function prototypes - *#* - *#* Revision 1.4 2004/06/06 18:25:44 bernie - *#* Rename event macros to look like regular functions. - *#* - *#* Revision 1.3 2004/06/06 16:57:18 bernie - *#* Mark some functions INLINE instead of 'extern inline'. - *#* - *#* Revision 1.2 2004/06/03 11:27:09 bernie - *#* Add dual-license information. - *#* - *#* Revision 1.1 2004/05/23 18:23:30 bernie - *#* Import drv/timer module. - *#* - *#*/ -#ifndef DRV_TIMER_H -#define DRV_TIMER_H - -#include -#include -#include -#include - -/*! Number of timer ticks per second. */ -#define TICKS_PER_SEC ((mtime_t)1000) - -/* Function protos */ -extern void timer_init(void); -extern void timer_delay(mtime_t time); - -#ifndef CONFIG_TIMER_DISABLE_UDELAY -extern void timer_udelay(utime_t utime); -#endif - - -#ifndef CONFIG_TIMER_DISABLE_EVENTS - -#if CONFIG_KERNEL - #include -#else - #include -#endif - -/*! - * The timer driver supports multiple synchronous timers - * that can trigger an event when they expire. - * - * \sa timer_add() - * \sa timer_abort() - */ -typedef struct Timer -{ - Node link; /*!< Link into timers queue */ - mtime_t delay; /*!< Timer delay in ms */ - mtime_t tick; /*!< Timer will expire at this tick */ - Event expire; /*!< Event to execute when the timer expires */ -} Timer; - -extern void timer_add(Timer *timer); -extern Timer *timer_abort(Timer *timer); - -#if defined(CONFIG_KERN_SIGNALS) && CONFIG_KERN_SIGNALS - -/*! Set the timer so that it sends a signal when it expires */ -INLINE void timer_set_event_signal(Timer *timer, struct Process *proc, sigmask_t sigs) -{ - event_initSignal(&timer->expire, proc, sigs); -} - -#endif /* CONFIG_KERN_SIGNALS */ - -/*! Set the timer so that it calls an user hook when it expires */ -INLINE void timer_set_event_softint(Timer *timer, Hook func, iptr_t user_data) -{ - event_initSoftInt(&timer->expire, func, user_data); -} - -/*! Set the timer delay (the time before the event will be triggered) */ -INLINE void timer_set_delay(Timer *timer, mtime_t delay) -{ - timer->delay = delay; -} - -#endif /* CONFIG_TIMER_DISABLE_EVENTS */ - -extern volatile mtime_t _clock; - -/*! - * \brief Return the system tick counter (expressed in ms) - * - * The result is guaranteed to increment monotonically, - * but client code must be tolerant with respect to overflows. - * - * The following code is safe: - * - * \code - * mtime_t tea_start_time = get_tick(); - * - * boil_water(); - * - * if (get_tick() - tea_start_time > TEAPOT_DELAY) - * printf("Your tea, Sir.\n"); - * \endcode - * - * When the tick counter increments every millisecond and mtime_t - * is 32bit wide, the tick count will overflow every 49.7 days. - * - * \note This function must disable interrupts on 8/16bit CPUs because the - * clock variable is larger than the processor word size and can't - * be copied atomically. - */ -INLINE mtime_t timer_ticks(void) -{ - mtime_t result; - cpuflags_t flags; - - DISABLE_IRQSAVE(flags); - result = _clock; - ENABLE_IRQRESTORE(flags); - - return result; -} - - -/*! - * Faster version of timer_ticks(), to be called only when the timer - * interrupt is disabled (DISABLE_INTS) or overridden by a - * higher-priority or non-nesting interrupt. - * - * \sa timer_ticks - */ -INLINE mtime_t timer_ticks_unlocked(void) -{ - return _clock; -} - -#endif /* DRV_TIMER_H */