4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
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24 * file does not by itself cause the resulting executable to be covered by
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27 * the GNU General Public License.
29 * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
30 * Copyright 2004 Giovanni Bajo
34 * \brief Generic library to handle buzzers and leds
38 * \author Giovanni Bajo <rasky@develer.com>
41 #ifndef DRV_BUZZERLED_H
42 #define DRV_BUZZERLED_H
47 /** Include hw_buzzerled.h. We expect hw_buzzerled.h to define enum BLD_DEVICE, which must contain
48 * an enumarator for each device, plus a special symbol NUM_BLDS containing the
51 #include "hw/hw_buzzerled.h"
54 /* Include hw-level implementation. This allows inlining of bld_set, which in turns
55 * should allow fast constant propagation for the common case (where the parameter
56 * device is a constant).
58 #include CPU_HEADER(buzzerled)
61 /** Initialize the buzzerled library.
63 * \note This function must be called before any other function in the library.
68 /** Set or reset a device.
70 * \param device Device to be set
71 * \param enable Enable/disable status
73 #define bld_set(device, enable) bld_hw_set(device, enable)
76 /** Enable a device for a certain interval of time
78 * \param device Device to be enabled
79 * \param duration Number of milliseconds the device must be enabled
81 * \note This function is non-blocking, so it will return immediately.
83 void bld_beep(enum BLD_DEVICE device, uint16_t duration);
86 /** Enable a device for a certain interval of time and wait.
88 * \param device Device to be enabled
89 * \param duration Number of milliseconds the device must be enabled
91 * \note This function is blocking, so it will return after the specified period of time.
93 void bld_beep_and_wait(enum BLD_DEVICE device, uint16_t duration);
97 #endif /* DRV_BUZZERLED_H */