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/*
* Copyright 2018 Jack Humbert <jack.humb@gmail.com>
* Copyright 2019 Drashna Jaelre (Christopher Courtney) <drashna@live.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h> // for memcpy
#include "dip_switch.h"
#ifdef SPLIT_KEYBOARD
# include "split_common/split_util.h"
#endif
#if !defined(DIP_SWITCH_PINS) && !defined(DIP_SWITCH_MATRIX_GRID)
# error "Either DIP_SWITCH_PINS or DIP_SWITCH_MATRIX_GRID must be defined."
#endif
#if defined(DIP_SWITCH_PINS) && defined(DIP_SWITCH_MATRIX_GRID)
# error "Both DIP_SWITCH_PINS and DIP_SWITCH_MATRIX_GRID are defined."
#endif
#ifdef DIP_SWITCH_PINS
static pin_t dip_switch_pad[] = DIP_SWITCH_PINS;
#endif
#ifdef DIP_SWITCH_MATRIX_GRID
static matrix_intersection_t dip_switch_pad[] = DIP_SWITCH_MATRIX_GRID;
extern bool peek_matrix(uint8_t row_index, uint8_t col_index, bool read_raw);
static uint16_t scan_count;
#endif /* DIP_SWITCH_MATRIX_GRID */
static bool dip_switch_state[NUM_DIP_SWITCHES] = {0};
static bool last_dip_switch_state[NUM_DIP_SWITCHES] = {0};
__attribute__((weak)) bool dip_switch_update_user(uint8_t index, bool active) {
return true;
}
__attribute__((weak)) bool dip_switch_update_kb(uint8_t index, bool active) {
return dip_switch_update_user(index, active);
}
__attribute__((weak)) bool dip_switch_update_mask_user(uint32_t state) {
return true;
}
__attribute__((weak)) bool dip_switch_update_mask_kb(uint32_t state) {
return dip_switch_update_mask_user(state);
}
#ifdef DIP_SWITCH_MAP_ENABLE
# include "keymap_introspection.h"
# include "action.h"
# ifndef DIP_SWITCH_MAP_KEY_DELAY
# define DIP_SWITCH_MAP_KEY_DELAY TAP_CODE_DELAY
# endif
static void dip_switch_exec_mapping(uint8_t index, bool on) {
// The delays below cater for Windows and its wonderful requirements.
action_exec(on ? MAKE_DIPSWITCH_ON_EVENT(index, true) : MAKE_DIPSWITCH_OFF_EVENT(index, true));
# if DIP_SWITCH_MAP_KEY_DELAY > 0
wait_ms(DIP_SWITCH_MAP_KEY_DELAY);
# endif // DIP_SWITCH_MAP_KEY_DELAY > 0
action_exec(on ? MAKE_DIPSWITCH_ON_EVENT(index, false) : MAKE_DIPSWITCH_OFF_EVENT(index, false));
# if DIP_SWITCH_MAP_KEY_DELAY > 0
wait_ms(DIP_SWITCH_MAP_KEY_DELAY);
# endif // DIP_SWITCH_MAP_KEY_DELAY > 0
}
#endif // DIP_SWITCH_MAP_ENABLE
void dip_switch_init(void) {
#ifdef DIP_SWITCH_PINS
# if defined(SPLIT_KEYBOARD) && defined(DIP_SWITCH_PINS_RIGHT)
if (!isLeftHand) {
const pin_t dip_switch_pad_right[] = DIP_SWITCH_PINS_RIGHT;
for (uint8_t i = 0; i < NUM_DIP_SWITCHES; i++) {
dip_switch_pad[i] = dip_switch_pad_right[i];
}
}
# endif
for (uint8_t i = 0; i < NUM_DIP_SWITCHES; i++) {
gpio_set_pin_input_high(dip_switch_pad[i]);
}
dip_switch_read(true);
#endif
#ifdef DIP_SWITCH_MATRIX_GRID
scan_count = 0;
#endif
}
void dip_switch_read(bool forced) {
bool has_dip_state_changed = false;
uint32_t dip_switch_mask = 0;
#ifdef DIP_SWITCH_MATRIX_GRID
bool read_raw = false;
if (scan_count < 500) {
scan_count++;
if (scan_count == 10) {
read_raw = true;
forced = true; /* First reading of the dip switch */
} else {
return;
}
}
#endif
for (uint8_t i = 0; i < NUM_DIP_SWITCHES; i++) {
#ifdef DIP_SWITCH_PINS
dip_switch_state[i] = !gpio_read_pin(dip_switch_pad[i]);
#endif
#ifdef DIP_SWITCH_MATRIX_GRID
dip_switch_state[i] = peek_matrix(dip_switch_pad[i].row, dip_switch_pad[i].col, read_raw);
#endif
dip_switch_mask |= dip_switch_state[i] << i;
if (last_dip_switch_state[i] != dip_switch_state[i] || forced) {
has_dip_state_changed = true;
#ifndef DIP_SWITCH_MAP_ENABLE
dip_switch_update_kb(i, dip_switch_state[i]);
#else
dip_switch_exec_mapping(i, dip_switch_state[i]);
#endif
}
}
if (has_dip_state_changed) {
#ifndef DIP_SWITCH_MAP_ENABLE
dip_switch_update_mask_kb(dip_switch_mask);
#endif
memcpy(last_dip_switch_state, dip_switch_state, sizeof(dip_switch_state));
}
}
void dip_switch_task(void) {
dip_switch_read(false);
}
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