keyboard/qmk-keychron-q3-colemak-dh
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix matrix_io_delay() timing in quantum/matrix.c (#9603)

Browse Source 
* 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>
This commit is contained in:
Takeshi ISHII
2021-01-13 10:46:22 +09:00
committed by GitHub
parent 017aa5988a
commit 302b35c2a0
6 changed files with 109 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
tmk_core/common/matrix.h
View File

@ -55,6 +55,9 @@ matrix_row_t matrix_get_row(uint8_t row);
/* print matrix for debug */
void matrix_print(void);
/* delay between changing matrix pin state and reading values */
void matrix_output_select_delay(void);
void matrix_output_unselect_delay(void);
/* only for backwards compatibility. delay between changing matrix pin state and reading values */
void matrix_io_delay(void);
/* power control */

52
tmk_core/common/wait.h
View File

@ -6,10 +6,62 @@
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) \