+++ /dev/null
-/*!
- * \file
- * <!--
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999, 2003 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \version $Id$
- *
- * \brief Buzzer driver (implementation)
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.13 2005/02/18 11:20:15 bernie
- *#* Use mware/event.h; Update copyright info.
- *#*
- *#* Revision 1.12 2004/12/13 12:07:06 bernie
- *#* DISABLE_IRQSAVE/ENABLE_IRQRESTORE: Convert to IRQ_SAVE_DISABLE/IRQ_RESTORE.
- *#*
- *#* Revision 1.11 2004/12/08 09:11:53 bernie
- *#* Rename time_t to mtime_t.
- *#*
- *#* Revision 1.10 2004/10/03 18:38:51 bernie
- *#* Add missing AVR header; Fix header.
- *#*
- *#* Revision 1.9 2004/09/14 21:01:25 bernie
- *#* Use new AVR port pin names.
- *#*/
-
-#include "buzzer.h"
-
-#include <drv/timer.h>
-#include <mware/event.h>
-
-#include <macros.h> /* BV() */
-#include <debug.h>
-#include <hw.h>
-#include <arch_config.h>
-
-
-#if (ARCH & ARCH_EMUL)
-
- int Emul_IsBuzzerOn(void);
- void Emul_BuzzerOn(void);
- void Emul_BuzzerOff(void);
- void Emul_BuzzerInit(void);
-
- #define IS_BUZZER_ON (Emul_IsBuzzerOn())
- #define BUZZER_ON (Emul_BuzzerOn())
- #define BUZZER_OFF (Emul_BuzzerOff())
- #define BUZZER_INIT (Emul_BuzzerInit())
-
-#elif defined(__AVR__)
-
- #include <avr/io.h>
-
- #define IS_BUZZER_ON (PORTG & BV(PG0))
-
- /*!
- * \name Buzzer manipulation macros.
- *
- * \note Some PORTG functions are being used from
- * interrupt code, so we must be careful to
- * avoid race conditions.
- * \{
- */
- #define BUZZER_ON ATOMIC(PORTG |= BV(PG0))
- #define BUZZER_OFF ATOMIC(PORTG &= ~BV(PG0))
- #define BUZZER_INIT ATOMIC(PORTG &= ~BV(PG0); DDRG |= BV(PG0);)
- /*\}*/
-
-#elif defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__) /* 80C196 */
-
- #define IS_BUZZER_ON (cpld->Buzzer & 1)
- #define BUZZER_ON (cpld->Buzzer = 1)
- #define BUZZER_OFF (cpld->Buzzer = 0)
- #define BUZZER_INIT (cpld->Buzzer = 0)
-
-#endif /* ARCH, __AVR__, __IAR_SYSTEM_ICC */
-
-
-/* Local vars */
-static Timer buz_timer;
-static bool buz_timer_running;
-static mtime_t buz_repeat_interval;
-static mtime_t buz_repeat_duration;
-
-
-/*!
- * Turn off buzzer, called by software timer
- */
-static void buz_softint(void)
-{
- if (IS_BUZZER_ON)
- {
- BUZZER_OFF;
- if (buz_repeat_interval)
- {
- /* Wait for interval time */
- buz_timer.delay = buz_repeat_interval;
- timer_add(&buz_timer);
- }
- else
- buz_timer_running = false;
- }
- else if (buz_repeat_interval)
- {
- /* Wait for beep time */
- BUZZER_ON;
- buz_timer.delay = buz_repeat_duration;
- timer_add(&buz_timer);
- }
- else
- buz_timer_running = false;
-}
-
-
-/*!
- * Beep for the specified ms time
- */
-void buz_beep(mtime_t time)
-{
- cpuflags_t flags;
- IRQ_SAVE_DISABLE(flags);
-
- /* Remove the software interrupt if it was already queued */
- if (buz_timer_running)
- timer_abort(&buz_timer);
-
- /* Turn on buzzer */
- BUZZER_ON;
-
- /* Add software interrupt to turn the buzzer off later */
- buz_timer_running = true;
- buz_timer.delay = time;
- timer_add(&buz_timer);
-
- IRQ_RESTORE(flags);
-}
-
-
-/*!
- * Start buzzer repetition
- */
-void buz_repeat_start(mtime_t duration, mtime_t interval)
-{
- buz_repeat_interval = interval;
- buz_repeat_duration = duration;
- buz_beep(duration);
-}
-
-
-/*!
- * Stop buzzer repetition
- */
-void buz_repeat_stop(void)
-{
- cpuflags_t flags;
- IRQ_SAVE_DISABLE(flags);
-
- /* Remove the software interrupt if it was already queued */
- if (buz_timer_running)
- {
- timer_abort(&buz_timer);
- buz_timer_running = false;
- }
-
- buz_repeat_interval = 0;
- BUZZER_OFF;
-
- IRQ_RESTORE(flags);
-}
-
-
-/*!
- * Initialize buzzer
- */
-void buz_init(void)
-{
- BUZZER_INIT;
-
- /* Inizializza software interrupt */
- event_initSoftInt(&buz_timer.expire, (Hook)buz_softint, 0);
-}