qmk-firmware/tmk_core/common/wait.h
Takeshi ISHII 302b35c2a0
fix matrix_io_delay() timing in quantum/matrix.c (#9603)
* fix matrix_io_delay() timing in quantum/matrix.c

* Updated comments explaining the need for matrix_io_delay() in quantum/matrix.c

* fix matrix_io_delay() timing in quantum/split_common/matrix.c

* Update quantum/matrix.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update quantum/split_common/matrix.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update quantum/matrix.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update quantum/split_common/matrix.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* add waitOutputPinValid() and wait_cpuclock() into quantum/quantum.h and tmk_core/common/wait.h

* add matrix_output_select_delay() and matrix_output_unselect_delay()

* fix quantum/matrix_common.c, tmk_core/common/matrix.h

* fix tmk_core/common/wait.h

* fix quantum/quantum.h, tmk_core/common/wait.h

* waitOutputPinValid() rename to waitInputPinDelay() in quantum/quantum.h.

* waitOutputPinValid() rename to waitInputPinDelay() in quantum/matrix_common.c

* update tmk_core/common/wait.h

* update comment in quantum/matrix.c, quantum/split_common/matrix.c

* update quantum/quantum.h: Make more margin in the GPIO_INPUT_PIN_DELAY default value.

Co-authored-by: Ryan <fauxpark@gmail.com>
2021-01-13 12:46:22 +11:00

95 lines
3.3 KiB
C

#pragma once
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
#if defined(__ARMEL__) || defined(__ARMEB__)
# ifndef __OPTIMIZE__
# pragma message "Compiler optimizations disabled; wait_cpuclock() won't work as designed"
# endif
# define wait_cpuclock(x) wait_cpuclock_allnop(x)
# 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_allnop(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;
}
}
#endif
#if defined(__AVR__)
# include <util/delay.h>
# define wait_ms(ms) _delay_ms(ms)
# define wait_us(us) _delay_us(us)
# define wait_cpuclock(x) __builtin_avr_delay_cycles(x)
#elif defined PROTOCOL_CHIBIOS
# include <ch.h>
# 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)
#elif defined PROTOCOL_ARM_ATSAM
# include "clks.h"
# define wait_ms(ms) CLK_delay_ms(ms)
# define wait_us(us) CLK_delay_us(us)
#else // Unit tests
void wait_ms(uint32_t ms);
# define wait_us(us) wait_ms(us / 1000)
#endif
#ifdef __cplusplus
}
#endif