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/* Copyright 2023 @ Keychron (https://www.keychron.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 "quantum.h"
// Mask out handedness diode to prevent it
// from keeping the keyboard awake
// - just mirroring `KC_NO` in the `LAYOUT`
// macro to keep it simple
const matrix_row_t matrix_mask[] = {
0b011111111,
0b011111111,
0b011011111,
0b001111111,
0b011111111,
0b001011111,
0b111111111,
0b101111111,
0b111111111,
0b110111111,
0b010111111,
0b111011110,
};
#ifdef DIP_SWITCH_ENABLE
bool dip_switch_update_kb(uint8_t index, bool active) {
if (!dip_switch_update_user(index, active)) {
return false;
}
if (index == 0) {
default_layer_set(1UL << (active ? 0 : 2));
}
return true;
}
#endif
#if defined(RGB_MATRIX_ENABLE) && defined(CAPS_LOCK_LED_INDEX)
bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
if (!process_record_user(keycode, record)) {
return false;
}
switch (keycode) {
case RGB_TOG:
if (record->event.pressed) {
switch (rgb_matrix_get_flags()) {
case LED_FLAG_ALL: {
rgb_matrix_set_flags(LED_FLAG_NONE);
rgb_matrix_set_color_all(0, 0, 0);
} break;
default: {
rgb_matrix_set_flags(LED_FLAG_ALL);
} break;
}
}
if (!rgb_matrix_is_enabled()) {
rgb_matrix_set_flags(LED_FLAG_ALL);
rgb_matrix_enable();
}
return false;
}
return true;
}
bool rgb_matrix_indicators_advanced_kb(uint8_t led_min, uint8_t led_max) {
if (!rgb_matrix_indicators_advanced_user(led_min, led_max)) {
return false;
}
// RGB_MATRIX_INDICATOR_SET_COLOR(index, red, green, blue);
# if defined(CAPS_LOCK_LED_INDEX)
if (host_keyboard_led_state().caps_lock) {
RGB_MATRIX_INDICATOR_SET_COLOR(CAPS_LOCK_LED_INDEX, 255, 255, 255);
} else {
if (!rgb_matrix_get_flags()) {
RGB_MATRIX_INDICATOR_SET_COLOR(CAPS_LOCK_LED_INDEX, 0, 0, 0);
}
}
# endif // CAPS_LOCK_LED_INDEX
# if defined(NUM_LOCK_LED_INDEX)
if (host_keyboard_led_state().num_lock) {
RGB_MATRIX_INDICATOR_SET_COLOR(NUM_LOCK_LED_INDEX, 255, 255, 255);
} else {
if (!rgb_matrix_get_flags()) {
RGB_MATRIX_INDICATOR_SET_COLOR(NUM_LOCK_LED_INDEX, 0, 0, 0);
}
}
# endif // NUM_LOCK_LED_INDEX
return true;
}
#endif
#define ADC_BUFFER_DEPTH 1
#define ADC_NUM_CHANNELS 1
#define ADC_SAMPLING_RATE ADC_SMPR_SMP_12P5
#define ADC_RESOLUTION ADC_CFGR_RES_10BITS
static int16_t analogReadPin_my(pin_t pin) {
ADCConfig adcCfg = {};
adcsample_t sampleBuffer[ADC_NUM_CHANNELS * ADC_BUFFER_DEPTH];
ADCDriver *targetDriver = &ADCD1;
ADCConversionGroup adcConversionGroup = {
.circular = FALSE,
.num_channels = (uint16_t)(ADC_NUM_CHANNELS),
.cfgr = ADC_RESOLUTION,
};
palSetLineMode(pin, PAL_MODE_INPUT_ANALOG);
switch (pin) {
case B0:
adcConversionGroup.smpr[2] = ADC_SMPR2_SMP_AN15(ADC_SAMPLING_RATE);
adcConversionGroup.sqr[0] = ADC_SQR1_SQ1_N(ADC_CHANNEL_IN15);
sampleBuffer[0] = 0;
break;
case B1:
adcConversionGroup.smpr[2] = ADC_SMPR2_SMP_AN16(ADC_SAMPLING_RATE);
adcConversionGroup.sqr[0] = ADC_SQR1_SQ1_N(ADC_CHANNEL_IN16);
sampleBuffer[0] = 0;
break;
default:
return 0;
}
adcStart(targetDriver, &adcCfg);
if (adcConvert(targetDriver, &adcConversionGroup, &sampleBuffer[0], ADC_BUFFER_DEPTH) != MSG_OK) {
return 0;
}
return *sampleBuffer;
}
void keyboard_post_init_kb(void) {
// 1. The pin A5/B5 of the USB C interface in the left hand is connected to the pin A0 of MCU,
// A0 will be set to output and write high when keyboard initial.
// 2. The same pin in the right hand is connected to the pin B0 and B1 of MCU respectively,
// and the ADC function of B0 and B1 will be enabled when keyboard initial.
// 3. because the serial usart RXD and TXD is multiplexed on USB's D+ and D- in the right hand.
// So detect the voltage on the pin A5/B5 of the USB C interface by ADC,
// and disable USB connectivity when the ADC value exceeds 1000,
// to avoid affecting the serial usart communication between the left hand and the right hand.
if (is_keyboard_left()) {
setPinOutput(A0);
writePinHigh(A0);
} else {
if ((analogReadPin_my(B0) > 1000) || (analogReadPin_my(B1) > 1000)) {
setPinInput(A11);
setPinInput(A12);
}
}
keyboard_post_init_user();
}
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