diff options
author | Stefan Kerkmann <karlk90@pm.me> | 2022-07-11 15:17:05 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2022-07-11 15:17:05 +0200 |
commit | 3f5dc472965e6a5b8efe60e33c7b6c2d18d92008 (patch) | |
tree | c60357db5312ccbaae608c47edd77982ad1c17ad /keyboards/preonic/rev3_drop | |
parent | 57021d63582718635f87ba661f40683e98ba59da (diff) |
[Core] Use polled waiting on ChibiOS platforms that support it (#17607)
* Use polled waiting on platforms that support it
Due to context switching overhead waiting a very short amount of time on
a sleeping thread is often not accurate and in fact not usable for timing
critical usage i.e. in a driver. Thus we use polled waiting for ranges
in the us range on platforms that support it instead. The fallback is
the thread sleeping mechanism.
This includes:
* ARM platforms with CYCCNT register (ARMv7, ARMv8) this is
incremented at CPU clock frequency
* GD32VF103 RISC-V port with CSR_MCYCLE register this is incremented at
CPU clock frequency
* RP2040 ARMv6 port which uses the integrated timer peripheral which is
incremented with a fixed 1MHz frequency
* Use wait_us() instead of chSysPolledDelayX
...as it is powered by busy waiting now.
* Add chibios waiting methods test bench
Diffstat (limited to 'keyboards/preonic/rev3_drop')
-rw-r--r-- | keyboards/preonic/rev3_drop/matrix.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/keyboards/preonic/rev3_drop/matrix.c b/keyboards/preonic/rev3_drop/matrix.c index 07171a39e9..82214e03d9 100644 --- a/keyboards/preonic/rev3_drop/matrix.c +++ b/keyboards/preonic/rev3_drop/matrix.c @@ -15,14 +15,7 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <stdint.h> -#include <stdbool.h> -#include <string.h> -#include "hal.h" -#include "timer.h" -#include "wait.h" -#include "debug.h" -#include "matrix.h" +#include "quantum.h" typedef uint16_t matrix_col_t; @@ -40,9 +33,13 @@ __attribute__((weak)) void matrix_init_user(void) {} __attribute__((weak)) void matrix_scan_user(void) {} -__attribute__((weak)) void matrix_init_kb(void) { matrix_init_user(); } +__attribute__((weak)) void matrix_init_kb(void) { + matrix_init_user(); +} -__attribute__((weak)) void matrix_scan_kb(void) { matrix_scan_user(); } +__attribute__((weak)) void matrix_scan_kb(void) { + matrix_scan_user(); +} void matrix_init(void) { dprintf("matrix init\n"); @@ -150,9 +147,13 @@ uint8_t matrix_scan(void) { return 1; } -bool matrix_is_on(uint8_t row, uint8_t col) { return (matrix[row] & (1 << col)); } +bool matrix_is_on(uint8_t row, uint8_t col) { + return (matrix[row] & (1 << col)); +} -matrix_row_t matrix_get_row(uint8_t row) { return matrix[row]; } +matrix_row_t matrix_get_row(uint8_t row) { + return matrix[row]; +} void matrix_print(void) { dprintf("\nr/c 01234567\n"); |