/* Copyright 2021 QMK * * 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/>. */ #pragma once #include <ch.h> #include <hal.h> /* chThdSleepX of zero maps to infinite - so we map to a tiny delay to still yield */ #define wait_ms(ms) \ do { \ if (ms != 0) { \ chThdSleepMilliseconds(ms); \ } else { \ chThdSleepMicroseconds(1); \ } \ } while (0) #ifdef WAIT_US_TIMER void wait_us(uint16_t duration); #else # define wait_us(us) \ do { \ if (us != 0) { \ chThdSleepMicroseconds(us); \ } else { \ chThdSleepMicroseconds(1); \ } \ } while (0) #endif #include "_wait.c" /* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus * to which the GPIO is connected. * The connected buses differ depending on the various series of MCUs. * And since the instruction execution clock of the CPU and the bus clock of GPIO are different, * there is a delay of several clocks to read the change of the input signal. * * Define this delay with the GPIO_INPUT_PIN_DELAY macro. * If the GPIO_INPUT_PIN_DELAY macro is not defined, the following default values will be used. * (A fairly large value of 0.25 microseconds is set.) */ #ifndef GPIO_INPUT_PIN_DELAY # define GPIO_INPUT_PIN_DELAY (CPU_CLOCK / 1000000L / 4) #endif #define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)