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buzzdeck.c
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buzzdeck.c
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/**
* || ____ _ __
* +------+ / __ )(_) /_______________ _____ ___
* | 0xBC | / __ / / __/ ___/ ___/ __ `/_ / / _ \
* +------+ / /_/ / / /_/ /__/ / / /_/ / / /_/ __/
* || || /_____/_/\__/\___/_/ \__,_/ /___/\___/
*
* Crazyflie control firmware
*
* Copyright (C) 2021 BitCraze AB
*
* 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, in version 3.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* buzzdeck.c - Deck driver for the buzzer deck
*/
#include <stdint.h>
#include <stdlib.h>
#include "stm32fxxx.h"
#include "deck.h"
#include "param.h"
#include "buzzer.h"
#include "piezo.h"
static bool isInit;
static void buzzDeckOn(uint32_t freq)
{
piezoSetRatio(128);
piezoSetFreq(freq);
}
static void buzzDeckOff()
{
piezoSetRatio(0);
}
static struct buzzerControl buzzDeckCtrl = {
.on = buzzDeckOn,
.off = buzzDeckOff
};
static void buzzDeckInit(DeckInfo *info)
{
if (isInit) {
return;
}
piezoInit();
buzzerSetControl(&buzzDeckCtrl);
isInit = true;
}
static const DeckDriver buzzer_deck = {
.vid = 0xBC,
.pid = 0x04,
.name = "bcBuzzer",
.usedPeriph = DECK_USING_TIMER5 | DECK_USING_UART2,
.usedGpio = 0,
.init = buzzDeckInit,
};
DECK_DRIVER(buzzer_deck);
PARAM_GROUP_START(deck)
/**
* @brief Nonzero if [Buzzer deck](%https://store.bitcraze.io/collections/decks/products/buzzer-deck) is attached
*/
PARAM_ADD_CORE(PARAM_UINT8 | PARAM_RONLY, bcBuzzer, &isInit)
PARAM_GROUP_STOP(deck)