112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
/*! \file pigpio.h
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* \brief GPIO
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*/
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/*
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PIP - Platform Independent Primitives
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GPIO
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Andrey Bychkov work.a.b@yandex.ru, Ivan Pelipenko peri4ko@yandex.ru
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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 Lesser 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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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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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#ifndef PIGPIO_H
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#define PIGPIO_H
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#include "pithread.h"
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class PIP_EXPORT PIGPIO: public PIThread
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{
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PIOBJECT_SUBCLASS(PIGPIO, PIThread)
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public:
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PIGPIO();
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virtual ~PIGPIO();
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//! \brief Work mode for pin
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enum Direction {
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In /** Input direction (read) */,
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Out /** Output direction (write) */
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};
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//! \brief Returns singleton object of %PIGPIO
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static PIGPIO * instance();
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//! \brief Initialize pin \"gpio_num\" for \"dir\" mode
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void initPin(int gpio_num, Direction dir = PIGPIO::In);
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//! \brief Set pin \"gpio_num\" value to \"value\"
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void pinSet (int gpio_num, bool value);
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//! \brief Set pin \"gpio_num\" value to \b true
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void pinHigh (int gpio_num) {pinSet(gpio_num, true );}
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//! \brief Set pin \"gpio_num\" value to \b false
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void pinLow (int gpio_num) {pinSet(gpio_num, false);}
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//! \brief Returns pin \"gpio_num\" state
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bool pinState(int gpio_num);
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//! \brief Starts watch for pin \"gpio_num\".
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//! \details Pins watching starts only with \a PIThread::start() function!
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//! This function doesn`t affect thread state
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void pinBeginWatch(int gpio_num);
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//! \brief End watch for pin \"gpio_num\".
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//! \details Pins watching starts only with \a PIThread::start() function!
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//! This function doesn`t affect thread state
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void pinEndWatch (int gpio_num);
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//! \brief End watch for all pins.
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//! \details Pins watching starts only with \a PIThread::start() function!
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//! This function doesn`t affect thread state
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void clearWatch();
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EVENT2(pinChanged, int, gpio_num, bool, new_value)
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//! \events
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//! \{
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//! \fn void pinChanged(int gpio_num, bool new_value)
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//! \brief Raise on pin \"gpio_num\" state changes to \"new_value\"
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//! \details Important! This event will be raised only with started
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//! thread.
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//! \}
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private:
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struct PIP_EXPORT GPIOData {
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GPIOData() {dir = PIGPIO::In; num = fd = -1;}
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PIString name;
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int dir;
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int num;
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int fd;
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};
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void exportGPIO(int gpio_num);
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void openGPIO(GPIOData & g);
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bool getPinState(int gpio_num);
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void begin();
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void run();
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void end();
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static PIString GPIOName(int gpio_num);
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PIMap<int, GPIOData> gpio_;
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PIMap<int, bool> watch_state;
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PIMutex mutex;
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};
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#endif // PIDIR_H
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