Move gpio wait logic to wait.h (#12067)
This commit is contained in:
Joel Challis
GitHub
parent
2e24cfadb7
commit
40c7ecfdea
8 changed files with 235 additions and 141 deletions
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@ -200,39 +200,6 @@ extern layer_state_t layer_state;
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# include "usbpd.h"
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#endif
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// Function substitutions to ease GPIO manipulation
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#if defined(__AVR__)
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/* The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
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* But here's more margin to make it two clocks. */
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# if !defined(GPIO_INPUT_PIN_DELAY)
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# define GPIO_INPUT_PIN_DELAY 2
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# endif
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# define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
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#elif defined(__ARMEL__) || defined(__ARMEB__)
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/* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus
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* to which the GPIO is connected.
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* The connected buses differ depending on the various series of MCUs.
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* And since the instruction execution clock of the CPU and the bus clock of GPIO are different,
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* there is a delay of several clocks to read the change of the input signal.
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*
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* Define this delay with the GPIO_INPUT_PIN_DELAY macro.
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* If the GPIO_INPUT_PIN_DELAY macro is not defined, the following default values will be used.
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* (A fairly large value of 0.25 microseconds is set.)
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*/
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# if !defined(GPIO_INPUT_PIN_DELAY)
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# if defined(STM32_SYSCLK)
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# define GPIO_INPUT_PIN_DELAY (STM32_SYSCLK / 1000000L / 4)
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# elif defined(KINETIS_SYSCLK_FREQUENCY)
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# define GPIO_INPUT_PIN_DELAY (KINETIS_SYSCLK_FREQUENCY / 1000000L / 4)
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# endif
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# endif
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# define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
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#endif
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// For tri-layer
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void update_tri_layer(uint8_t layer1, uint8_t layer2, uint8_t layer3);
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layer_state_t update_tri_layer_state(layer_state_t state, uint8_t layer1, uint8_t layer2, uint8_t layer3);
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22
tmk_core/common/arm_atsam/_wait.h
Normal file
22
tmk_core/common/arm_atsam/_wait.h
Normal file
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@ -0,0 +1,22 @@
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/* Copyright 2021 QMK
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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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#pragma once
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#include "clks.h"
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#define wait_ms(ms) CLK_delay_ms(ms)
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#define wait_us(us) CLK_delay_us(us)
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#define waitInputPinDelay()
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29
tmk_core/common/avr/_wait.h
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29
tmk_core/common/avr/_wait.h
Normal file
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@ -0,0 +1,29 @@
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/* Copyright 2021 QMK
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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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#pragma once
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#include <util/delay.h>
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#define wait_ms(ms) _delay_ms(ms)
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#define wait_us(us) _delay_us(us)
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/* The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
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* But here's more margin to make it two clocks. */
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#ifndef GPIO_INPUT_PIN_DELAY
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# define GPIO_INPUT_PIN_DELAY 2
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#endif
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#define waitInputPinDelay() __builtin_avr_delay_cycles(GPIO_INPUT_PIN_DELAY)
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55
tmk_core/common/chibios/_wait.h
Normal file
55
tmk_core/common/chibios/_wait.h
Normal file
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@ -0,0 +1,55 @@
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/* Copyright 2021 QMK
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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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#pragma once
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#include <ch.h>
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/* chThdSleepX of zero maps to infinite - so we map to a tiny delay to still yield */
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#define wait_ms(ms) \
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do { \
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if (ms != 0) { \
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chThdSleepMilliseconds(ms); \
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} else { \
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chThdSleepMicroseconds(1); \
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} \
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} while (0)
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#define wait_us(us) \
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do { \
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if (us != 0) { \
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chThdSleepMicroseconds(us); \
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} else { \
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chThdSleepMicroseconds(1); \
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} \
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} while (0)
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/* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus
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* to which the GPIO is connected.
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* The connected buses differ depending on the various series of MCUs.
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* And since the instruction execution clock of the CPU and the bus clock of GPIO are different,
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* there is a delay of several clocks to read the change of the input signal.
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*
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* Define this delay with the GPIO_INPUT_PIN_DELAY macro.
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* If the GPIO_INPUT_PIN_DELAY macro is not defined, the following default values will be used.
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* (A fairly large value of 0.25 microseconds is set.)
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*/
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#include "wait.c"
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#ifndef GPIO_INPUT_PIN_DELAY
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# define GPIO_INPUT_PIN_DELAY (STM32_SYSCLK / 1000000L / 4)
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#endif
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#define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
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@ -30,4 +30,5 @@
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# define USE_I2CV1
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# define USE_I2CV1_CONTRIB // for some reason a bunch of ChibiOS-Contrib boards only have clock_speed
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# define USE_GPIOV1
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# define STM32_SYSCLK KINETIS_SYSCLK_FREQUENCY
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#endif
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89
tmk_core/common/chibios/wait.c
Normal file
89
tmk_core/common/chibios/wait.c
Normal file
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@ -0,0 +1,89 @@
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/* Copyright 2021 QMK
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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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#ifndef __OPTIMIZE__
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# pragma message "Compiler optimizations disabled; wait_cpuclock() won't work as designed"
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#endif
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#define CLOCK_DELAY_NOP8 "nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t"
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__attribute__((always_inline)) static inline void wait_cpuclock(unsigned int n) { /* n: 1..135 */
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/* The argument n must be a constant expression.
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* That way, compiler optimization will remove unnecessary code. */
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if (n < 1) {
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return;
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}
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if (n > 8) {
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unsigned int n8 = n / 8;
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n = n - n8 * 8;
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switch (n8) {
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case 16:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 15:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 14:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 13:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 12:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 11:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 10:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 9:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 8:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 7:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 6:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 5:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 4:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 3:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 2:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 1:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 0:
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break;
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}
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}
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switch (n) {
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case 8:
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asm volatile("nop" ::: "memory");
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case 7:
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asm volatile("nop" ::: "memory");
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case 6:
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asm volatile("nop" ::: "memory");
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case 5:
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asm volatile("nop" ::: "memory");
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case 4:
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asm volatile("nop" ::: "memory");
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case 3:
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asm volatile("nop" ::: "memory");
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case 2:
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asm volatile("nop" ::: "memory");
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case 1:
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asm volatile("nop" ::: "memory");
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case 0:
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break;
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}
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}
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22
tmk_core/common/test/_wait.h
Normal file
22
tmk_core/common/test/_wait.h
Normal file
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@ -0,0 +1,22 @@
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/* Copyright 2021 QMK
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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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#pragma once
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#include <inttypes.h>
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void wait_ms(uint32_t ms);
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#define wait_us(us) wait_ms(us / 1000)
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#define waitInputPinDelay()
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@ -1,3 +1,18 @@
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/* Copyright 2021 QMK
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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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#pragma once
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#include <inttypes.h>
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@ -6,114 +21,8 @@
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extern "C" {
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#endif
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#if defined(__ARMEL__) || defined(__ARMEB__)
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# ifndef __OPTIMIZE__
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# pragma message "Compiler optimizations disabled; wait_cpuclock() won't work as designed"
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# endif
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# define wait_cpuclock(x) wait_cpuclock_allnop(x)
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# define CLOCK_DELAY_NOP8 "nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t nop\n\t"
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__attribute__((always_inline)) static inline void wait_cpuclock_allnop(unsigned int n) { /* n: 1..135 */
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/* The argument n must be a constant expression.
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* That way, compiler optimization will remove unnecessary code. */
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if (n < 1) {
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return;
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}
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if (n > 8) {
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unsigned int n8 = n / 8;
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n = n - n8 * 8;
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switch (n8) {
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case 16:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 15:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 14:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 13:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 12:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 11:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 10:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 9:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 8:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 7:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 6:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 5:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 4:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 3:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 2:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 1:
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asm volatile(CLOCK_DELAY_NOP8::: "memory");
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case 0:
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break;
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}
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}
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switch (n) {
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case 8:
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asm volatile("nop" ::: "memory");
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case 7:
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asm volatile("nop" ::: "memory");
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case 6:
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asm volatile("nop" ::: "memory");
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case 5:
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asm volatile("nop" ::: "memory");
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case 4:
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asm volatile("nop" ::: "memory");
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case 3:
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asm volatile("nop" ::: "memory");
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case 2:
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asm volatile("nop" ::: "memory");
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case 1:
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asm volatile("nop" ::: "memory");
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case 0:
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break;
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}
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}
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#endif
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#if defined(__AVR__)
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# include <util/delay.h>
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# define wait_ms(ms) _delay_ms(ms)
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# define wait_us(us) _delay_us(us)
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# define wait_cpuclock(x) __builtin_avr_delay_cycles(x)
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#elif defined PROTOCOL_CHIBIOS
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# include <ch.h>
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# define wait_ms(ms) \
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do { \
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if (ms != 0) { \
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chThdSleepMilliseconds(ms); \
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} else { \
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chThdSleepMicroseconds(1); \
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} \
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} while (0)
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# define wait_us(us) \
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do { \
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if (us != 0) { \
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chThdSleepMicroseconds(us); \
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} else { \
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chThdSleepMicroseconds(1); \
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} \
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} while (0)
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#elif defined PROTOCOL_ARM_ATSAM
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# include "clks.h"
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# define wait_ms(ms) CLK_delay_ms(ms)
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# define wait_us(us) CLK_delay_us(us)
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#else // Unit tests
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void wait_ms(uint32_t ms);
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# define wait_us(us) wait_ms(us / 1000)
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#if __has_include_next("_wait.h")
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# include_next "_wait.h" /* Include the platforms _wait.h */
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#endif
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#ifdef __cplusplus
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