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/*
* This file is part of the libopencm3_cpp_extensions project.
* hosted at http://github.com/thirdpin/libopencm3_cpp_extensions
*
* Copyright (C) 2016 Third Pin LLC
* Written by Anastasiia Lazareva <a.lazareva@thirdpin.ru>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/*
GPIO C++ Wrapper of libopencm3 library for STM32F2, STM32F4
*/
#ifndef CM3CPP_GPIO_H_
#define CM3CPP_GPIO_H_
// GENERAL INCLUDES
#include "stdint.h"
// LIBOPENCM3 INCLUDES
#include <libopencm3/stm32/exti.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/rcc.h>
#ifdef STM32F2
#include <libopencm3/stm32/f2/nvic.h>
#endif
#ifdef STM32F4
#include <libopencm3/stm32/f4/nvic.h>
#endif
// CM3CPP INCLUDES
#include "private/pinout.h"
namespace cm3cpp {
namespace gpio {
class Gpio
{
public:
struct Pinout
{
enum Port
{
// Check preprocessor value is not empty
// Works for integer values
// https://stackoverflow.com/questions/4102351/test-for-empty-macro-definition
#if (GPIOA + 0)
PORT_A = GPIOA
#endif
#if (GPIOB + 0)
,
PORT_B = GPIOC
#endif
#if (GPIOC + 0)
,
PORT_C = GPIOC
#endif
#if (GPIOD + 0)
,
PORT_D = GPIOD
#endif
#if (GPIOE + 0)
,
PORT_E = GPIOE
#endif
#if (GPIOF + 0)
,
PORT_F = GPIOF
#endif
#if (GPIOG + 0)
,
PORT_G = GPIOG
#endif
#if (GPIOH + 0)
,
PORT_H = GPIOH
#endif
#if (GPIOI + 0)
,
PORT_I = GPIOI
#endif
#if (GPIOJ + 0)
,
PORT_J = GPIOJ
#endif
#if (GPIOK + 0)
,
PORT_K = GPIOK
#endif
};
Port port;
uint16_t pin;
uint8_t pin_number;
};
enum Mode
{
INPUT,
OUTPUT,
ALTERNATE_FUNCTION,
ANALOG
};
enum PullMode
{
NO_PULL,
PULL_UP,
PULL_DOWN
};
enum OutputType
{
PUSH_PULL,
OPEN_DRAIN
};
enum Speed
{
LOW_2MHz,
MEDIUM_25MHz,
FAST_50MHz,
HIGH_SPEED_100MHz
};
enum AltFuncNumber
{
AF0,
AF1,
AF2,
AF3,
AF4,
AF5,
AF6,
AF7,
AF8,
AF9,
AF10,
AF11,
AF12,
AF13,
AF14,
AF15
};
Gpio() {}
Gpio(Pinout pinout);
void init(Pinout pinout);
void set();
void clear();
bool get() const;
void toggle();
uint16_t port_read() const;
void port_write(uint16_t data);
void port_config_lock();
void mode_setup(Mode mode, PullMode pull_mode);
void set_output_options(OutputType type, Speed speed);
void set_af(AltFuncNumber af_num);
void setup_exti(enum exti_trigger_type trigger);
void clear_exti_pending_bit();
bool get_exti_flag_status() const;
private:
Pinout _pinout;
}; // namespace gpio
} // namespace cm3cpp
} // namespace cm3cpp
#endif /* CM3CPP_GPIO_H_ */
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