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core: allow locking the matrix state (#18852)

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Co-authored-by: Sergey Vlasov <sigprof@gmail.com>
Co-authored-by: Stefan Kerkmann <karlk90@pm.me>
Co-authored-by: Nick Brassel <nick@tzarc.org>
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dexter93 2023-02-12 18:38:36 +02:00 committed by GitHub
parent db1eeea478
commit 3ae87b1555
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 15 additions and 1 deletions
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14
quantum/keyboard.c
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@ -252,6 +252,14 @@ __attribute__((weak)) void keyboard_post_init_kb(void) {
keyboard_post_init_user(); keyboard_post_init_user();
} }
/** \brief matrix_can_read
*
* Allows overriding when matrix scanning operations should be executed.
*/
__attribute__((weak)) bool matrix_can_read(void) {
return true;
}
/** \brief keyboard_setup /** \brief keyboard_setup
* *
* FIXME: needs doc * FIXME: needs doc
@ -449,10 +457,14 @@ static inline void generate_tick_event(void) {
* @return false Matrix didn't change * @return false Matrix didn't change
*/ */
static bool matrix_task(void) { static bool matrix_task(void) {
if (!matrix_can_read()) {
generate_tick_event();
return false;
}
static matrix_row_t matrix_previous[MATRIX_ROWS]; static matrix_row_t matrix_previous[MATRIX_ROWS];
matrix_scan(); matrix_scan();
bool matrix_changed = false; bool matrix_changed = false;
for (uint8_t row = 0; row < MATRIX_ROWS && !matrix_changed; row++) { for (uint8_t row = 0; row < MATRIX_ROWS && !matrix_changed; row++) {
matrix_changed |= matrix_previous[row] ^ matrix_get_row(row); matrix_changed |= matrix_previous[row] ^ matrix_get_row(row);

2
quantum/matrix.h
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@ -51,6 +51,8 @@ void matrix_setup(void);
void matrix_init(void); void matrix_init(void);
/* scan all key states on matrix */ /* scan all key states on matrix */
uint8_t matrix_scan(void); uint8_t matrix_scan(void);
/* whether matrix scanning operations should be executed */
bool matrix_can_read(void);
/* whether a switch is on */ /* whether a switch is on */
bool matrix_is_on(uint8_t row, uint8_t col); bool matrix_is_on(uint8_t row, uint8_t col);
/* matrix state on row */ /* matrix state on row */