mirror of
https://github.com/semerad/gt3b.git
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82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/**
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* @copyright
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* Copyright (C) 2011 Pavel Semerad
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*
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* @file
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* $RCSfile: $
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*
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* @purpose
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* gt3b alternative firmware - buzzer routines
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*
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* @cfg_management
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* $Source: $
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* $Author: $
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* $Date: $
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*
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* @comment
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "buzzer.h"
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#include "config.h"
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/** @brief
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* buzzer initialization
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*/
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void buzzer_init(void) {
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IO_OP(D, 4); // buzzer pin
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BUZZER0; // stop buzzer
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}
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// buzzer counters and flags
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_Bool buzzer_running; // 1 when running
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u8 buzzer_cnt_on; // time to be ON
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u8 buzzer_cnt_off; // time to be OFF
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u16 buzzer_count; // length of beeping
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u8 buzzer_cnt; // helper counter
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// more beeps: on time, off time and count of beeps
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void buzzer_on(u8 on_5ms, u8 off_5ms, u16 count) {
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buzzer_cnt_on = buzzer_cnt = on_5ms;
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buzzer_cnt_off = off_5ms;
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buzzer_count = count;
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BUZZER1;
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buzzer_running = 1;
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}
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/// @brief
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/// stop buzzer
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///
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void buzzer_off(void) {
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BUZZER0;
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buzzer_running = 0;
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}
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// one beep
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void beep(u8 len_5ms) {
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if (buzzer_running) return;
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buzzer_on(len_5ms, 0, 1);
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}
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// key beep if enabled in config
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void key_beep(void) {
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if (cg.key_beep) beep(1);
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}
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