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101 lines
2.9 KiB
101 lines
2.9 KiB
/* Copyright 2021
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "report.h"
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#include "uart.h"
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#ifndef RN42_BAUD_RATE
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# define RN42_BAUD_RATE 115200
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#endif
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// https://cdn.sparkfun.com/datasheets/Wireless/Bluetooth/bluetooth_cr_UG-v1.0r.pdf#G7.663734
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static inline uint16_t rn42_consumer_usage_to_bitmap(uint16_t usage) {
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switch (usage) {
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case AC_HOME:
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return 0x0001;
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case AL_EMAIL:
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return 0x0002;
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case AC_SEARCH:
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return 0x0004;
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case AL_KEYBOARD_LAYOUT:
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return 0x0008;
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case AUDIO_VOL_UP:
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return 0x0010;
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case AUDIO_VOL_DOWN:
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return 0x0020;
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case AUDIO_MUTE:
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return 0x0040;
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case TRANSPORT_PLAY_PAUSE:
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return 0x0080;
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case TRANSPORT_NEXT_TRACK:
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return 0x0100;
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case TRANSPORT_PREV_TRACK:
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return 0x0200;
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case TRANSPORT_STOP:
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return 0x0400;
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case TRANSPORT_EJECT:
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return 0x0800;
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case TRANSPORT_FAST_FORWARD:
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return 0x1000;
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case TRANSPORT_REWIND:
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return 0x2000;
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case TRANSPORT_STOP_EJECT:
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return 0x4000;
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case AL_LOCAL_BROWSER:
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return 0x8000;
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default:
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return 0;
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}
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}
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void rn42_init(void) {
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uart_init(RN42_BAUD_RATE);
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}
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void rn42_send_keyboard(report_keyboard_t *report) {
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uart_write(0xFD);
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uart_write(0x09);
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uart_write(0x01);
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uart_write(report->mods);
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uart_write(0x00);
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for (uint8_t i = 0; i < KEYBOARD_REPORT_KEYS; i++) {
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uart_write(report->keys[i]);
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}
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}
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void rn42_send_mouse(report_mouse_t *report) {
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uart_write(0xFD);
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uart_write(0x00);
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uart_write(0x03);
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uart_write(report->buttons);
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uart_write(report->x);
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uart_write(report->y);
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uart_write(report->v); // should try sending the wheel v here
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uart_write(report->h); // should try sending the wheel h here
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uart_write(0x00);
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}
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void rn42_send_consumer(uint16_t data) {
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static uint16_t last_data = 0;
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if (data == last_data) return;
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last_data = data;
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uint16_t bitmap = rn42_consumer_usage_to_bitmap(data);
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uart_write(0xFD);
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uart_write(0x03);
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uart_write(0x03);
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uart_write(bitmap & 0xFF);
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uart_write((bitmap >> 8) & 0xFF);
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}
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