58 lines
2.8 KiB
C
58 lines
2.8 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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* Copyright (c) 2017 Victor Perez
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*
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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 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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*
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU 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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*/
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#pragma once
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/**
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* Fast I/O interfaces for STM32F1
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* These use GPIO functions instead of Direct Port Manipulation, as on AVR.
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*/
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#include <libmaple/gpio.h>
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#define READ(IO) (PIN_MAP[IO].gpio_device->regs->IDR & (1U << PIN_MAP[IO].gpio_bit) ? HIGH : LOW)
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#define WRITE(IO,V) (PIN_MAP[IO].gpio_device->regs->BSRR = (1U << PIN_MAP[IO].gpio_bit) << ((V) ? 0 : 16))
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#define TOGGLE(IO) (PIN_MAP[IO].gpio_device->regs->ODR = PIN_MAP[IO].gpio_device->regs->ODR ^ (1U << PIN_MAP[IO].gpio_bit))
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#define _GET_MODE(IO) gpio_get_mode(PIN_MAP[IO].gpio_device, PIN_MAP[IO].gpio_bit)
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#define _SET_MODE(IO,M) gpio_set_mode(PIN_MAP[IO].gpio_device, PIN_MAP[IO].gpio_bit, M)
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#define _SET_OUTPUT(IO) _SET_MODE(IO, GPIO_OUTPUT_PP)
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#define _SET_OUTPUT_OD(IO) _SET_MODE(IO, GPIO_OUTPUT_OD)
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#define OUT_WRITE(IO,V) do{ _SET_OUTPUT(IO); WRITE(IO,V); } while(0)
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#define OUT_WRITE_OD(IO,V) do{ _SET_OUTPUT_OD(IO); WRITE(IO,V); } while(0)
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#define SET_INPUT(IO) _SET_MODE(IO, GPIO_INPUT_FLOATING)
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#define SET_INPUT_PULLUP(IO) _SET_MODE(IO, GPIO_INPUT_PU)
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#define SET_OUTPUT(IO) OUT_WRITE(IO, LOW)
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#define SET_PWM(IO) pinMode(IO, PWM) // do{ gpio_set_mode(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit, GPIO_AF_OUTPUT_PP); timer_set_mode(PIN_MAP[pin].timer_device, PIN_MAP[pin].timer_channel, TIMER_PWM); }while(0)
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#define SET_PWM_OD(IO) pinMode(IO, PWM_OPEN_DRAIN)
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#define IS_INPUT(IO) (_GET_MODE(IO) == GPIO_INPUT_FLOATING || _GET_MODE(IO) == GPIO_INPUT_ANALOG || _GET_MODE(IO) == GPIO_INPUT_PU || _GET_MODE(IO) == GPIO_INPUT_PD)
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#define IS_OUTPUT(IO) (_GET_MODE(IO) == GPIO_OUTPUT_PP || _GET_MODE(IO) == GPIO_OUTPUT_OD)
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#define PWM_PIN(IO) (PIN_MAP[IO].timer_device != nullptr)
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// digitalRead/Write wrappers
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#define extDigitalRead(IO) digitalRead(IO)
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#define extDigitalWrite(IO,V) digitalWrite(IO,V)
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