67 lines
2.7 KiB
C
67 lines
2.7 KiB
C
/* Copyright 2021 3araht
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "bandominedoni.h"
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#if defined(SPLIT_HAND_MATRIX_GRID)
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static uint8_t peek_matrix_intersection(pin_t out_pin, pin_t in_pin) {
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gpio_set_pin_input_high(in_pin);
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gpio_set_pin_output(out_pin);
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gpio_write_pin_low(out_pin);
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// It's almost unnecessary, but wait until it's down to low, just in case.
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wait_us(1);
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uint8_t pin_state = gpio_read_pin(in_pin);
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// Set out_pin to a setting that is less susceptible to noise.
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gpio_set_pin_input_high(out_pin);
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matrix_io_delay(); // Wait for the pull-up to go HIGH.
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return pin_state;
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}
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#endif
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// Overriding is_keyboard_left() in qmk_firmware/quantum/split_common/split_util.c to limit the handedness check only once.
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// reason: bandoMIneDonI has no space on right hand side to use "SPLIT_HAND_MATRIX_GRID".
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// However, It enables to decide the handedness by the HW by adding one condition: "not to press any keys (especially r30) dusing startup."
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bool is_keyboard_left(void) {
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static enum { UNKNOWN, LEFT, RIGHT } hand_side = UNKNOWN;
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// only check once, as this is called often
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if (hand_side == UNKNOWN) {
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#if defined(SPLIT_HAND_PIN)
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// Test pin SPLIT_HAND_PIN for High/Low, if low it's right hand
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gpio_set_pin_input(SPLIT_HAND_PIN);
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hand_side = gpio_read_pin(SPLIT_HAND_PIN) ? LEFT : RIGHT;
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return (hand_side == LEFT);
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#elif defined(SPLIT_HAND_MATRIX_GRID)
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# ifdef SPLIT_HAND_MATRIX_GRID_LOW_IS_LEFT
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hand_side = peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID) ? RIGHT : LEFT;
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return (hand_side == LEFT);
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# else
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hand_side = peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID) ? LEFT : RIGHT;
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return (hand_side == LEFT);
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# endif
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#elif defined(EE_HANDS)
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hand_side = eeconfig_read_handedness() ? LEFT : RIGHT;
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return (hand_side == LEFT);
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#elif defined(MASTER_RIGHT)
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hand_side = !is_keyboard_master() ? LEFT : RIGHT;
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return (hand_side == LEFT);
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#endif
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hand_side = is_keyboard_master() ? LEFT : RIGHT;
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return (hand_side == LEFT);
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} else {
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return (hand_side == LEFT);
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}
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}
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