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Allow multiple process_record() calls per scan

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This is particularly relevant for, e.g., the ergodox EZ and
other keyboards with slow scan rates. Without changing the API or
behavior of individual process_record() calls, we allow a
configuration flag to make multiple calls in a single scan.

This will probably have miniscule effects on non-steno users,
and it's not enabled by default for any keyboards. Added note
about it to ergodox README.

Signed-off-by: seebs <seebs@seebs.net>
This commit is contained in:
Seebs 2017-11-18 15:39:50 -06:00 • committed by Jack Humbert
parent b669d115c2
commit 39d3d92364
3 changed files with 25 additions and 0 deletions
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11
tmk_core/common/keyboard.c
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@ -177,6 +177,9 @@ void keyboard_task(void)
static uint8_t led_status = 0;
matrix_row_t matrix_row = 0;
matrix_row_t matrix_change = 0;
#ifdef QMK_KEYS_PER_SCAN
uint8_t keys_processed = 0;
#endif
matrix_scan();
if (is_keyboard_master()) {
@ -208,6 +211,10 @@ void keyboard_task(void)
});
// record a processed key
matrix_prev[r] ^= ((matrix_row_t)1<<c);
#ifdef QMK_KEYS_PER_SCAN
// only jump out if we have processed "enough" keys.
if (++keys_processed >= QMK_KEYS_PER_SCAN)
#endif
// process a key per task call
goto MATRIX_LOOP_END;
}
@ -216,6 +223,10 @@ void keyboard_task(void)
}
}
// call with pseudo tick event when no real key event.
#ifdef QMK_KEYS_PER_SCAN
// we can get here with some keys processed now.
if (!keys_processed)
#endif
action_exec(TICK);
MATRIX_LOOP_END: