69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2020 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "watch_gpio.h"
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inline void watch_enable_digital_input(const uint8_t pin) {
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PORT->Group[pin >> 5].DIRCLR.reg = (1 << (pin & 0x1F));
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg |= PORT_PINCFG_INEN;
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg &= ~PORT_PINCFG_PULLEN;
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}
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void watch_disable_digital_input(const uint8_t pin) {
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PORT->Group[pin >> 5].DIRCLR.reg = (1 << (pin & 0x1F));
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg &= ~(PORT_PINCFG_PULLEN | PORT_PINCFG_INEN);
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}
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void watch_enable_pull_up(const uint8_t pin) {
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PORT->Group[pin >> 5].OUTSET.reg = (1 << (pin & 0x1F));
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg |= PORT_PINCFG_PULLEN;
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}
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void watch_enable_pull_down(const uint8_t pin) {
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PORT->Group[pin >> 5].OUTCLR.reg = (1 << (pin & 0x1F));
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg |= PORT_PINCFG_PULLEN;
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}
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bool watch_get_pin_level(const uint8_t pin) {
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return (PORT->Group[pin >> 5].IN.reg & (1 << (pin & 0x1F))) != 0;
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}
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void watch_enable_digital_output(const uint8_t pin) {
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PORT->Group[pin >> 5].DIRSET.reg = (1 << (pin & 0x1F));
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg |= PORT_PINCFG_INEN;
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}
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void watch_disable_digital_output(const uint8_t pin) {
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PORT->Group[pin >> 5].DIRCLR.reg = (1 << (pin & 0x1F));
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PORT->Group[pin >> 5].PINCFG[pin & 0x1F].reg &= ~(PORT_PINCFG_PULLEN | PORT_PINCFG_INEN);
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}
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void watch_set_pin_level(const uint8_t pin, const bool level) {
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if (level) {
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PORT->Group[pin >> 5].OUTSET.reg = (1 << (pin & 0x1F));
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} else {
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PORT->Group[pin >> 5].OUTCLR.reg = (1 << (pin & 0x1F));
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}
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}
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