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/** \file beep-drivers.c
* \brief implement the beep driver infrastructure
* \author Copyright (C) 2019 Hans Ulrich Niedermann
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*
* \defgroup beep_drivers The beep driver infrastructure
*
* The infrastructure for and of beep drivers.
*
* @{
*
*/
#include <stddef.h>
#include "beep-drivers.h"
#include "beep-log.h"
/**
* The beginning of the linked list of drivers.
*/
static
beep_driver *first_driver = NULL;
/* documented in header file */
void beep_drivers_register(beep_driver *driver)
{
log_verbose("beep_drivers_register %p (%s)",
(void *) driver, driver->name);
if (first_driver) {
driver->next = first_driver;
first_driver = driver;
} else {
driver->next = NULL;
first_driver = driver;
}
}
/* documented in header file */
beep_driver *beep_drivers_detect(const char *const device_name)
{
for (beep_driver *driver = first_driver; driver; driver=driver->next) {
if (driver->detect(driver, device_name)) {
return driver;
}
}
return NULL;
}
/* documented in header file */
void beep_drivers_init(beep_driver *driver)
{
driver->init(driver);
}
/* documented in header file */
void beep_drivers_fini(beep_driver *driver)
{
driver->fini(driver);
}
/* documented in header file */
void beep_drivers_begin_tone(beep_driver *driver, const uint16_t freq)
{
driver->begin_tone(driver, freq);
}
/* documented in header file */
void beep_drivers_end_tone(beep_driver *driver)
{
driver->end_tone(driver);
}
/** @} */
/*
* Local Variables:
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
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