Move gpio wait logic to wait.h (#12067)
Joel Challis
5 years ago
committed by
GitHub
parent
2e24cfadb7
commit
40c7ecfdea
@ -0,0 +1,22 @@
|
|||||||
|
/* 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 "clks.h"
|
||||||
|
|
||||||
|
#define wait_ms(ms) CLK_delay_ms(ms)
|
||||||
|
#define wait_us(us) CLK_delay_us(us)
|
||||||
|
#define waitInputPinDelay()
|
||||||
@ -0,0 +1,29 @@
|
|||||||
|
/* 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 <util/delay.h>
|
||||||
|
|
||||||
|
#define wait_ms(ms) _delay_ms(ms)
|
||||||
|
#define wait_us(us) _delay_us(us)
|
||||||
|
|
||||||
|
/* The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
|
||||||
|
* But here's more margin to make it two clocks. */
|
||||||
|
#ifndef GPIO_INPUT_PIN_DELAY
|
||||||
|
# define GPIO_INPUT_PIN_DELAY 2
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define waitInputPinDelay() __builtin_avr_delay_cycles(GPIO_INPUT_PIN_DELAY)
|
||||||
@ -0,0 +1,55 @@
|
|||||||
|
/* 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>
|
||||||
|
|
||||||
|
/* 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)
|
||||||
|
#define wait_us(us) \
|
||||||
|
do { \
|
||||||
|
if (us != 0) { \
|
||||||
|
chThdSleepMicroseconds(us); \
|
||||||
|
} else { \
|
||||||
|
chThdSleepMicroseconds(1); \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
/* 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.)
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "wait.c"
|
||||||
|
|
||||||
|
#ifndef GPIO_INPUT_PIN_DELAY
|
||||||
|
# define GPIO_INPUT_PIN_DELAY (STM32_SYSCLK / 1000000L / 4)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
|
||||||
@ -0,0 +1,89 @@
|
|||||||
|
/* 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/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __OPTIMIZE__
|
||||||
|
# pragma message "Compiler optimizations disabled; wait_cpuclock() won't work as designed"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#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"
|
||||||
|
|
||||||
|
__attribute__((always_inline)) static inline void wait_cpuclock(unsigned int n) { /* n: 1..135 */
|
||||||
|
/* The argument n must be a constant expression.
|
||||||
|
* That way, compiler optimization will remove unnecessary code. */
|
||||||
|
if (n < 1) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (n > 8) {
|
||||||
|
unsigned int n8 = n / 8;
|
||||||
|
n = n - n8 * 8;
|
||||||
|
switch (n8) {
|
||||||
|
case 16:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 15:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 14:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 13:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 12:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 11:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 10:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 9:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 8:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 7:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 6:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 5:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 4:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 3:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 2:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 1:
|
||||||
|
asm volatile(CLOCK_DELAY_NOP8::: "memory");
|
||||||
|
case 0:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
switch (n) {
|
||||||
|
case 8:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 7:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 6:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 5:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 4:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 3:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 2:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 1:
|
||||||
|
asm volatile("nop" ::: "memory");
|
||||||
|
case 0:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,22 @@
|
|||||||
|
/* 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 <inttypes.h>
|
||||||
|
|
||||||
|
void wait_ms(uint32_t ms);
|
||||||
|
#define wait_us(us) wait_ms(us / 1000)
|
||||||
|
#define waitInputPinDelay()
|
||||||
Loading…
Reference in New Issue