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mverch67
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
#ifdef INPUTDRIVER_I2C_KBD_TYPE
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#include "input/I2CKeyboardInputDriver.h"
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#include "util/ILog.h"
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#include <Arduino.h>
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#include <Wire.h>
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I2CKeyboardInputDriver::I2CKeyboardInputDriver(void) {}
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void I2CKeyboardInputDriver::init(void)
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{
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keyboard = lv_indev_create();
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lv_indev_set_type(keyboard, LV_INDEV_TYPE_KEYPAD);
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lv_indev_set_read_cb(keyboard, keyboard_read);
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if (!inputGroup) {
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inputGroup = lv_group_create();
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lv_group_set_default(inputGroup);
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}
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lv_indev_set_group(keyboard, inputGroup);
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}
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/******************************************************************
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LV_KEY_NEXT: Focus on the next object
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LV_KEY_PREV: Focus on the previous object
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LV_KEY_ENTER: Triggers LV_EVENT_PRESSED, LV_EVENT_CLICKED, or LV_EVENT_LONG_PRESSED etc. events
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LV_KEY_UP: Increase value or move upwards
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LV_KEY_DOWN: Decrease value or move downwards
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LV_KEY_RIGHT: Increase value or move to the right
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LV_KEY_LEFT: Decrease value or move to the left
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LV_KEY_ESC: Close or exit (E.g. close a Drop down list)
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LV_KEY_DEL: Delete (E.g. a character on the right in a Text area)
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LV_KEY_BACKSPACE: Delete a character on the left (E.g. in a Text area)
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LV_KEY_HOME: Go to the beginning/top (E.g. in a Text area)
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LV_KEY_END: Go to the end (E.g. in a Text area)
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LV_KEY_UP = 17, // 0x11
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LV_KEY_DOWN = 18, // 0x12
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LV_KEY_RIGHT = 19, // 0x13
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LV_KEY_LEFT = 20, // 0x14
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LV_KEY_ESC = 27, // 0x1B
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LV_KEY_DEL = 127, // 0x7F
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LV_KEY_BACKSPACE = 8, // 0x08
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LV_KEY_ENTER = 10, // 0x0A, '\n'
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LV_KEY_NEXT = 9, // 0x09, '\t'
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LV_KEY_PREV = 11, // 0x0B, '
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LV_KEY_HOME = 2, // 0x02, STX
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LV_KEY_END = 3, // 0x03, ETX
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*******************************************************************/
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void I2CKeyboardInputDriver::keyboard_read(lv_indev_t *indev, lv_indev_data_t *data)
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{
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char keyValue = 0;
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Wire.requestFrom(INPUTDRIVER_I2C_KBD_TYPE, 1);
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if (Wire.available() > 0) {
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keyValue = Wire.read();
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if (keyValue != (char)0x00) {
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data->state = LV_INDEV_STATE_PRESSED;
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ILOG_DEBUG("key press value: %d", (int)keyValue);
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switch (keyValue) {
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case 0x0D:
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keyValue = LV_KEY_ENTER;
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break;
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default:
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break;
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}
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} else {
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data->state = LV_INDEV_STATE_RELEASED;
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}
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}
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data->key = (uint32_t)keyValue;
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}
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void I2CKeyboardInputDriver::task_handler(void) {}
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I2CKeyboardInputDriver::~I2CKeyboardInputDriver(void) {}
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#endif |