65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
|
/*
|
||
|
|
* 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 "dip_switch.h"
|
||
|
|
|
||
|
|
// for memcpy
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#if !defined(DIP_SWITCH_PINS)
|
||
|
|
# error "No DIP switch pads defined by DIP_SWITCH_PINS"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define NUMBER_OF_DIP_SWITCHES (sizeof(dip_switch_pad) / sizeof(pin_t))
|
||
|
|
static pin_t dip_switch_pad[] = DIP_SWITCH_PINS;
|
||
|
|
static bool dip_switch_state[NUMBER_OF_DIP_SWITCHES] = {0};
|
||
|
|
static bool last_dip_switch_state[NUMBER_OF_DIP_SWITCHES] = {0};
|
||
|
|
|
||
|
|
__attribute__((weak)) void dip_switch_update_user(uint8_t index, bool active) {}
|
||
|
|
|
||
|
|
__attribute__((weak)) void dip_switch_update_kb(uint8_t index, bool active) { dip_switch_update_user(index, active); }
|
||
|
|
|
||
|
|
__attribute__((weak)) void dip_switch_update_mask_user(uint32_t state) {}
|
||
|
|
|
||
|
|
__attribute__((weak)) void dip_switch_update_mask_kb(uint32_t state) { dip_switch_update_mask_user(state); }
|
||
|
|
|
||
|
|
void dip_switch_init(void) {
|
||
|
|
for (uint8_t i = 0; i < NUMBER_OF_DIP_SWITCHES; i++) {
|
||
|
|
setPinInputHigh(dip_switch_pad[i]);
|
||
|
|
}
|
||
|
|
dip_switch_read(true);
|
||
|
|
}
|
||
|
|
|
||
|
|
void dip_switch_read(bool forced) {
|
||
|
|
bool has_dip_state_changed = false;
|
||
|
|
uint32_t dip_switch_mask = 0;
|
||
|
|
|
||
|
|
for (uint8_t i = 0; i < NUMBER_OF_DIP_SWITCHES; i++) {
|
||
|
|
dip_switch_state[i] = !readPin(dip_switch_pad[i]);
|
||
|
|
dip_switch_mask |= dip_switch_state[i] << i;
|
||
|
|
if (last_dip_switch_state[i] ^ dip_switch_state[i] || forced) {
|
||
|
|
has_dip_state_changed = true;
|
||
|
|
dip_switch_update_kb(i, dip_switch_state[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (has_dip_state_changed) {
|
||
|
|
dip_switch_update_mask_kb(dip_switch_mask);
|
||
|
|
}
|
||
|
|
memcpy(last_dip_switch_state, dip_switch_state, sizeof(&dip_switch_state));
|
||
|
|
}
|