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https://github.com/OneOfEleven/uv-k5-firmware-custom.git
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157
driver/keyboard.c
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157
driver/keyboard.c
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/* Copyright 2023 Manuel Jinger
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* Copyright 2023 Dual Tachyon
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* https://github.com/DualTachyon
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "bsp/dp32g030/gpio.h"
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#include "driver/gpio.h"
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#include "driver/keyboard.h"
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#include "driver/systick.h"
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KEY_Code_t gKeyReading0 = KEY_INVALID;
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KEY_Code_t gKeyReading1 = KEY_INVALID;
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uint16_t gDebounceCounter;
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bool gWasFKeyPressed;
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KEY_Code_t KEYBOARD_Poll(void)
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{
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KEY_Code_t Key = KEY_INVALID;
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_4);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_5);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_6);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_7);
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SYSTICK_DelayUs(1);
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// Keys connected to gnd
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_0)) {
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Key = KEY_SIDE1;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_1)) {
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Key = KEY_SIDE2;
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goto Bye;
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}
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// Original doesn't do PTT
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// First row
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GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_4);
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SYSTICK_DelayUs(1);
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_0)) {
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Key = KEY_MENU;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_1)) {
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Key = KEY_1;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_2)) {
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Key = KEY_4;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_3)) {
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Key = KEY_7;
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goto Bye;
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}
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// Second row
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GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_5);
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SYSTICK_DelayUs(1);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_4);
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SYSTICK_DelayUs(1);
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_0)) {
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Key = KEY_UP;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_1)) {
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Key = KEY_2;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_2)) {
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Key = KEY_5;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_3)) {
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Key = KEY_8;
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goto Bye;
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}
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// Third row
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GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_4);
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SYSTICK_DelayUs(1);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_5);
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SYSTICK_DelayUs(1);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_4);
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SYSTICK_DelayUs(1);
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GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_6);
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SYSTICK_DelayUs(1);
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_0)) {
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Key = KEY_DOWN;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_1)) {
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Key = KEY_3;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_2)) {
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Key = KEY_6;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_3)) {
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Key = KEY_9;
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goto Bye;
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}
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// Fourth row
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GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_7);
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SYSTICK_DelayUs(1);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_6);
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SYSTICK_DelayUs(1);
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_0)) {
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Key = KEY_EXIT;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_1)) {
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Key = KEY_STAR;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_2)) {
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Key = KEY_0;
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goto Bye;
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}
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if (!GPIO_CheckBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_3)) {
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Key = KEY_F;
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goto Bye;
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}
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Bye:
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_4);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_5);
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GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_6);
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GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_KEYBOARD_7);
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return Key;
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}
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