diff options
Diffstat (limited to 'drivers/bluetooth/rn42.c')
| -rw-r--r-- | drivers/bluetooth/rn42.c | 99 | 
1 files changed, 99 insertions, 0 deletions
| diff --git a/drivers/bluetooth/rn42.c b/drivers/bluetooth/rn42.c new file mode 100644 index 0000000000..2ef40bb7e0 --- /dev/null +++ b/drivers/bluetooth/rn42.c @@ -0,0 +1,99 @@ +/* Copyright 2021 + * + * 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 "report.h" +#include "uart.h" + +#ifndef RN42_BAUD_RATE +#    define RN42_BAUD_RATE 115200 +#endif + +// https://cdn.sparkfun.com/datasheets/Wireless/Bluetooth/bluetooth_cr_UG-v1.0r.pdf#G7.663734 +static inline uint16_t rn42_consumer_usage_to_bitmap(uint16_t usage) { +    switch (usage) { +        case AC_HOME: +            return 0x0001; +        case AL_EMAIL: +            return 0x0002; +        case AC_SEARCH: +            return 0x0004; +        case AL_KEYBOARD_LAYOUT: +            return 0x0008; +        case AUDIO_VOL_UP: +            return 0x0010; +        case AUDIO_VOL_DOWN: +            return 0x0020; +        case AUDIO_MUTE: +            return 0x0040; +        case TRANSPORT_PLAY_PAUSE: +            return 0x0080; +        case TRANSPORT_NEXT_TRACK: +            return 0x0100; +        case TRANSPORT_PREV_TRACK: +            return 0x0200; +        case TRANSPORT_STOP: +            return 0x0400; +        case TRANSPORT_EJECT: +            return 0x0800; +        case TRANSPORT_FAST_FORWARD: +            return 0x1000; +        case TRANSPORT_REWIND: +            return 0x2000; +        case TRANSPORT_STOP_EJECT: +            return 0x4000; +        case AL_LOCAL_BROWSER: +            return 0x8000; +        default: +            return 0; +    } +} + +void rn42_init(void) { uart_init(RN42_BAUD_RATE); } + +void rn42_send_keyboard(report_keyboard_t *report) { +    uart_write(0xFD); +    uart_write(0x09); +    uart_write(0x01); +    uart_write(report->mods); +    uart_write(0x00); +    for (uint8_t i = 0; i < KEYBOARD_REPORT_KEYS; i++) { +        uart_write(report->keys[i]); +    } +} + +void rn42_send_mouse(report_mouse_t *report) { +    uart_write(0xFD); +    uart_write(0x00); +    uart_write(0x03); +    uart_write(report->buttons); +    uart_write(report->x); +    uart_write(report->y); +    uart_write(report->v);  // should try sending the wheel v here +    uart_write(report->h);  // should try sending the wheel h here +    uart_write(0x00); +} + +void rn42_send_consumer(uint16_t data) { +    static uint16_t last_data = 0; +    if (data == last_data) return; +    last_data       = data; +    uint16_t bitmap = rn42_consumer_usage_to_bitmap(data); +    uart_write(0xFD); +    uart_write(0x03); +    uart_write(0x03); +    uart_write(bitmap & 0xFF); +    uart_write((bitmap >> 8) & 0xFF); +} | 
