-/*!
- * \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>
- * \author Francesco Sacchi <batt@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.16 2005/11/04 16:19:33 bernie
- *#* buz_init(): Restore IRQ protection as in project_bko.
- *#*
- *#* Revision 1.15 2005/06/27 21:25:50 bernie
- *#* Modularize hardware access; Port to new timer interface.
- *#*
- *#* Revision 1.14 2005/04/11 19:10:27 bernie
- *#* Include top-level headers from cfg/ subdir.
- *#*
- *#* 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 <hw_buzzer.h>
-#include <drv/buzzer.h>
-
-#include <drv/timer.h>
-#include <drv/sipo.h>
-
-#include <mware/event.h>
-
-#include <cfg/debug.h>
-
-
-/* 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 */
- timer_setDelay(&buz_timer, ms_to_ticks(buz_repeat_interval));
- timer_add(&buz_timer);
- }
- else
- buz_timer_running = false;
- }
- else if (buz_repeat_interval)
- {
- /* Wait for beep time */
- BUZZER_ON;
- timer_setDelay(&buz_timer, ms_to_ticks(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;
- timer_setDelay(&buz_timer, ms_to_ticks(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)
-{
- cpuflags_t flags;
- IRQ_SAVE_DISABLE(flags);
-
- BUZZER_HW_INIT;
-
- IRQ_RESTORE(flags);
-
- /* Init software interrupt. */
- timer_set_event_softint(&buz_timer, (Hook)buz_softint, 0);
-}