bandominedoni.c (2786B)
1 /* Copyright 2021 3araht 2 * 3 * This program is free software: you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation, either version 2 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 17 #include "bandominedoni.h" 18 19 #if defined(SPLIT_HAND_MATRIX_GRID) 20 static uint8_t peek_matrix_intersection(pin_t out_pin, pin_t in_pin) { 21 gpio_set_pin_input_high(in_pin); 22 gpio_set_pin_output(out_pin); 23 gpio_write_pin_low(out_pin); 24 // It's almost unnecessary, but wait until it's down to low, just in case. 25 wait_us(1); 26 uint8_t pin_state = gpio_read_pin(in_pin); 27 // Set out_pin to a setting that is less susceptible to noise. 28 gpio_set_pin_input_high(out_pin); 29 matrix_io_delay(); // Wait for the pull-up to go HIGH. 30 return pin_state; 31 } 32 #endif 33 34 // Overriding is_keyboard_left() in qmk_firmware/quantum/split_common/split_util.c to limit the handedness check only once. 35 // reason: bandoMIneDonI has no space on right hand side to use "SPLIT_HAND_MATRIX_GRID". 36 // However, It enables to decide the handedness by the HW by adding one condition: "not to press any keys (especially r30) dusing startup." 37 bool is_keyboard_left(void) { 38 static enum { UNKNOWN, LEFT, RIGHT } hand_side = UNKNOWN; 39 40 // only check once, as this is called often 41 if (hand_side == UNKNOWN) { 42 #if defined(SPLIT_HAND_PIN) 43 // Test pin SPLIT_HAND_PIN for High/Low, if low it's right hand 44 gpio_set_pin_input(SPLIT_HAND_PIN); 45 hand_side = gpio_read_pin(SPLIT_HAND_PIN) ? LEFT : RIGHT; 46 return (hand_side == LEFT); 47 #elif defined(SPLIT_HAND_MATRIX_GRID) 48 # ifdef SPLIT_HAND_MATRIX_GRID_LOW_IS_LEFT 49 hand_side = peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID) ? RIGHT : LEFT; 50 return (hand_side == LEFT); 51 # else 52 hand_side = peek_matrix_intersection(SPLIT_HAND_MATRIX_GRID) ? LEFT : RIGHT; 53 return (hand_side == LEFT); 54 # endif 55 #elif defined(EE_HANDS) 56 hand_side = eeconfig_read_handedness() ? LEFT : RIGHT; 57 return (hand_side == LEFT); 58 #elif defined(MASTER_RIGHT) 59 hand_side = !is_keyboard_master() ? LEFT : RIGHT; 60 return (hand_side == LEFT); 61 #endif 62 hand_side = is_keyboard_master() ? LEFT : RIGHT; 63 return (hand_side == LEFT); 64 } else { 65 return (hand_side == LEFT); 66 } 67 }