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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
*/
#include "gpio.hpp"
namespace cm3cpp {
namespace gpio {
Gpio::Gpio(Pinout pinout)
{
_pinout = pinout;
}
void Gpio::init(Pinout pinout)
{
_pinout = pinout;
}
void Gpio::set()
{
gpio_set(_pinout.port, _pinout.pin);
}
void Gpio::clear()
{
gpio_clear(_pinout.port, _pinout.pin);
}
bool Gpio::get() const
{
return gpio_get(_pinout.port, _pinout.pin);
}
void Gpio::toggle()
{
gpio_toggle(_pinout.port, _pinout.pin);
}
uint16_t Gpio::port_read() const
{
return gpio_port_read(_pinout.port);
}
void Gpio::port_write(uint16_t data)
{
gpio_port_write(_pinout.port, data);
}
void Gpio::port_config_lock()
{
gpio_port_config_lock(_pinout.port, _pinout.pin);
}
void Gpio::mode_setup(Mode mode, PullMode pull_mode)
{
uint8_t _mode;
uint8_t _pull_mode;
switch (mode) {
case INPUT:
_mode = GPIO_MODE_INPUT;
break;
case OUTPUT:
_mode = GPIO_MODE_OUTPUT;
break;
case ALTERNATE_FUNCTION:
_mode = GPIO_MODE_AF;
break;
case ANALOG:
_mode = GPIO_MODE_ANALOG;
break;
}
switch (pull_mode) {
case NO_PULL:
_pull_mode = GPIO_PUPD_NONE;
break;
case PULL_UP:
_pull_mode = GPIO_PUPD_PULLUP;
break;
case PULL_DOWN:
_pull_mode = GPIO_PUPD_PULLDOWN;
break;
}
gpio_mode_setup(_pinout.port, _mode, _pull_mode, _pinout.pin);
}
void Gpio::set_output_options(OutputType type, Speed speed)
{
uint8_t _type;
uint8_t _speed;
switch (type) {
case PUSH_PULL:
_type = GPIO_OTYPE_PP;
break;
case OPEN_DRAIN:
_type = GPIO_OTYPE_OD;
break;
}
switch (speed) {
case LOW_2MHz:
_speed = GPIO_OSPEED_2MHZ;
break;
case MEDIUM_25MHz:
_speed = GPIO_OSPEED_25MHZ;
break;
case FAST_50MHz:
_speed = GPIO_OSPEED_50MHZ;
break;
case HIGH_SPEED_100MHz:
_speed = GPIO_OSPEED_100MHZ;
break;
}
gpio_set_output_options(_pinout.port, _type, _speed, _pinout.pin);
}
void Gpio::set_af(AltFuncNumber af_num)
{
uint8_t _af;
switch (af_num) {
case AF0:
_af = GPIO_AF0;
break;
case AF1:
_af = GPIO_AF1;
break;
case AF2:
_af = GPIO_AF2;
break;
case AF3:
_af = GPIO_AF3;
break;
case AF4:
_af = GPIO_AF4;
break;
case AF5:
_af = GPIO_AF5;
break;
case AF6:
_af = GPIO_AF6;
break;
case AF7:
_af = GPIO_AF7;
break;
case AF8:
_af = GPIO_AF8;
break;
case AF9:
_af = GPIO_AF9;
break;
case AF10:
_af = GPIO_AF10;
break;
case AF11:
_af = GPIO_AF11;
break;
case AF12:
_af = GPIO_AF12;
break;
case AF13:
_af = GPIO_AF13;
break;
case AF14:
_af = GPIO_AF14;
break;
case AF15:
_af = GPIO_AF15;
break;
}
gpio_set_af(_pinout.port, _af, _pinout.pin);
}
void Gpio::setup_exti(exti_trigger_type trigger)
{
exti_select_source(_pinout.pin, _pinout.port);
exti_set_trigger(_pinout.pin, trigger);
exti_enable_request(_pinout.pin);
}
void Gpio::clear_exti_pending_bit()
{
exti_reset_request(_pinout.pin);
}
bool Gpio::get_exti_flag_status() const
{
uint32_t flag = exti_get_flag_status(_pinout.pin);
if (flag != 0)
return true;
return false;
}
} // namespace gpio
} // namespace cm3cpp
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