qmk_firmware/keyboards/hhkb/yang/yang.c

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/* Copyright 2021 Kan-Ru Chen <kanru@kanru.info>
*
* 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 "quantum.h"
extern uint8_t power_save_level;
void hhkb_led_on(uint8_t led) {
switch (led) {
case 1:
writePinHigh(F4);
break;
case 2:
writePinHigh(F2);
break;
case 3:
writePinHigh(F0);
break;
}
}
void hhkb_led_off(uint8_t led) {
switch (led) {
case 1:
writePinLow(F4);
break;
case 2:
writePinLow(F2);
break;
case 3:
writePinLow(F0);
break;
}
}
void keyboard_pre_init_kb(void) {
// BT power up
setPinOutput(D5);
writePinLow(D5);
// Row selectors
setPinOutput(B0);
setPinOutput(B1);
setPinOutput(B2);
// Col selectors
setPinOutput(B3);
setPinOutput(B4);
setPinOutput(B5);
// Key strobe
setPinOutput(B6);
writePinHigh(B6);
// Key: input with pull-up
setPinInputHigh(D7);
// Unused pins on Pro2 ANSI
// Input with pull up to save power
setPinInputHigh(C6);
setPinInputHigh(C7);
// LED pin configuration
setPinOutput(F0);
setPinOutput(F1);
setPinOutput(F4);
writePinLow(F0);
writePinLow(F1);
writePinLow(F4);
// Turn on switch PCB
setPinOutput(D6);
writePinLow(D6);
keyboard_pre_init_user();
}
void suspend_power_down_kb(void) {
if (power_save_level > 2) {
// Disable UART TX to avoid current leakage
UCSR1B &= ~_BV(TXEN1);
// Power down BLE module
writePinHigh(D5);
}
suspend_power_down_user();
}
void suspend_wakeup_init_kb(void) {
// Power up BLE module
writePinLow(D5);
// Enable UART TX
UCSR1B |= _BV(TXEN1);
suspend_wakeup_init_user();
}
layer_state_t layer_state_set_kb(layer_state_t state) {
state = layer_state_set_user(state);
writePin(F1, IS_LAYER_ON_STATE(state, 1));
writePin(F0, IS_LAYER_ON_STATE(state, 2));
return state;
}