- /* 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)
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