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128 lines
4.0 KiB
128 lines
4.0 KiB
/* |
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* Copyright 2018 Jack Humbert <jack.humb@gmail.com> |
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* Copyright 2019 Drashna Jaelre (Christopher Courtney) <drashna@live.com> |
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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 <string.h> // for memcpy |
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#include "dip_switch.h" |
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#include "gpio.h" |
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#include "util.h" |
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#ifdef SPLIT_KEYBOARD |
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# include "split_common/split_util.h" |
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#endif |
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#if !defined(DIP_SWITCH_PINS) && !defined(DIP_SWITCH_MATRIX_GRID) |
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# error "Either DIP_SWITCH_PINS or DIP_SWITCH_MATRIX_GRID must be defined." |
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#endif |
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#if defined(DIP_SWITCH_PINS) && defined(DIP_SWITCH_MATRIX_GRID) |
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# error "Both DIP_SWITCH_PINS and DIP_SWITCH_MATRIX_GRID are defined." |
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#endif |
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#ifdef DIP_SWITCH_PINS |
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# define NUMBER_OF_DIP_SWITCHES (ARRAY_SIZE(dip_switch_pad)) |
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static pin_t dip_switch_pad[] = DIP_SWITCH_PINS; |
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#endif |
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#ifdef DIP_SWITCH_MATRIX_GRID |
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typedef struct matrix_index_t { |
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uint8_t row; |
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uint8_t col; |
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} matrix_index_t; |
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# define NUMBER_OF_DIP_SWITCHES (ARRAY_SIZE(dip_switch_pad)) |
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static matrix_index_t dip_switch_pad[] = DIP_SWITCH_MATRIX_GRID; |
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extern bool peek_matrix(uint8_t row_index, uint8_t col_index, bool read_raw); |
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static uint16_t scan_count; |
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#endif /* DIP_SWITCH_MATRIX_GRID */ |
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static bool dip_switch_state[NUMBER_OF_DIP_SWITCHES] = {0}; |
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static bool last_dip_switch_state[NUMBER_OF_DIP_SWITCHES] = {0}; |
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__attribute__((weak)) bool dip_switch_update_user(uint8_t index, bool active) { |
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return true; |
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} |
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__attribute__((weak)) bool dip_switch_update_kb(uint8_t index, bool active) { |
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return dip_switch_update_user(index, active); |
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} |
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__attribute__((weak)) bool dip_switch_update_mask_user(uint32_t state) { |
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return true; |
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} |
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__attribute__((weak)) bool dip_switch_update_mask_kb(uint32_t state) { |
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return dip_switch_update_mask_user(state); |
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} |
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void dip_switch_init(void) { |
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#ifdef DIP_SWITCH_PINS |
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# if defined(SPLIT_KEYBOARD) && defined(DIP_SWITCH_PINS_RIGHT) |
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if (!isLeftHand) { |
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const pin_t dip_switch_pad_right[] = DIP_SWITCH_PINS_RIGHT; |
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for (uint8_t i = 0; i < NUMBER_OF_DIP_SWITCHES; i++) { |
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dip_switch_pad[i] = dip_switch_pad_right[i]; |
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} |
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} |
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# endif |
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for (uint8_t i = 0; i < NUMBER_OF_DIP_SWITCHES; i++) { |
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setPinInputHigh(dip_switch_pad[i]); |
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} |
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dip_switch_read(true); |
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#endif |
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#ifdef DIP_SWITCH_MATRIX_GRID |
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scan_count = 0; |
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#endif |
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} |
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void dip_switch_read(bool forced) { |
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bool has_dip_state_changed = false; |
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uint32_t dip_switch_mask = 0; |
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#ifdef DIP_SWITCH_MATRIX_GRID |
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bool read_raw = false; |
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if (scan_count < 500) { |
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scan_count++; |
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if (scan_count == 10) { |
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read_raw = true; |
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forced = true; /* First reading of the dip switch */ |
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} else { |
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return; |
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} |
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} |
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#endif |
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for (uint8_t i = 0; i < NUMBER_OF_DIP_SWITCHES; i++) { |
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#ifdef DIP_SWITCH_PINS |
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dip_switch_state[i] = !readPin(dip_switch_pad[i]); |
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#endif |
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#ifdef DIP_SWITCH_MATRIX_GRID |
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dip_switch_state[i] = peek_matrix(dip_switch_pad[i].row, dip_switch_pad[i].col, read_raw); |
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#endif |
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dip_switch_mask |= dip_switch_state[i] << i; |
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if (last_dip_switch_state[i] != dip_switch_state[i] || forced) { |
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has_dip_state_changed = true; |
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dip_switch_update_kb(i, dip_switch_state[i]); |
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} |
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} |
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if (has_dip_state_changed) { |
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dip_switch_update_mask_kb(dip_switch_mask); |
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memcpy(last_dip_switch_state, dip_switch_state, sizeof(dip_switch_state)); |
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} |
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}
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