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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"
-
- #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()) {
- gpio_set_pin_output(A0);
- gpio_write_pin_high(A0);
- } else {
- if ((analogReadPin_my(B0) > 1000) || (analogReadPin_my(B1) > 1000)) {
- gpio_set_pin_input(A11);
- gpio_set_pin_input(A12);
- }
- }
-
- keyboard_post_init_user();
- }
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