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Diffstat (limited to 'arduino/libraries/Bluefruit52Lib/src/services/BLEUart.h')
| -rwxr-xr-x | arduino/libraries/Bluefruit52Lib/src/services/BLEUart.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/arduino/libraries/Bluefruit52Lib/src/services/BLEUart.h b/arduino/libraries/Bluefruit52Lib/src/services/BLEUart.h new file mode 100755 index 0000000..d8c589d --- /dev/null +++ b/arduino/libraries/Bluefruit52Lib/src/services/BLEUart.h @@ -0,0 +1,105 @@ +/**************************************************************************/ +/*! + @file BLEUart.h + @author hathach (tinyusb.org) + + @section LICENSE + + Software License Agreement (BSD License) + + Copyright (c) 2018, Adafruit Industries (adafruit.com) + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. Neither the name of the copyright holders nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/**************************************************************************/ +#ifndef BLEUART_H_ +#define BLEUART_H_ + +#include "bluefruit_common.h" +#include "utility/adafruit_fifo.h" + +#include "BLECharacteristic.h" +#include "BLEService.h" + +#define BLE_UART_DEFAULT_FIFO_DEPTH 256 + +extern const uint8_t BLEUART_UUID_SERVICE[]; +extern const uint8_t BLEUART_UUID_CHR_RXD[]; +extern const uint8_t BLEUART_UUID_CHR_TXD[]; + +class BLEUart : public BLEService, public Stream +{ + public: + typedef void (*rx_callback_t) (void); + + BLEUart(uint16_t fifo_depth = BLE_UART_DEFAULT_FIFO_DEPTH); + virtual ~BLEUart(); + + virtual err_t begin(void); + + bool notifyEnabled (void); + void setRxCallback (rx_callback_t fp); + void bufferTXD (uint8_t enable); + + // Stream API + virtual int read ( void ); + virtual int read ( uint8_t * buf, size_t size ); + int read ( char * buf, size_t size ) { return read( (uint8_t*) buf, size); } + virtual size_t write ( uint8_t b ); + virtual size_t write ( const uint8_t *content, size_t len ); + virtual int available ( void ); + virtual int peek ( void ); + virtual void flush ( void ); + + // pull in write(str) and write(buf, size) from Print + using Print::write; + + protected: + BLECharacteristic _txd; + BLECharacteristic _rxd; + + // RXD + Adafruit_FIFO* _rx_fifo; + uint16_t _rx_fifo_depth; + rx_callback_t _rx_cb; + + // TXD + Adafruit_FIFO* _tx_fifo; + uint8_t _tx_buffered; + TimerHandle_t _buffered_th; + + bool flush_tx_buffered(void); + + // from BLEService + virtual void _disconnect_cb(void); + virtual void _connect_cb(void); + + friend void bleuart_rxd_cb(BLECharacteristic& chr, uint8_t* data, uint16_t len, uint16_t offset); + friend void bleuart_txd_cccd_cb(BLECharacteristic& chr, uint16_t value); + friend void bleuart_txd_buffered_hdlr(TimerHandle_t timer); +}; + + + +#endif /* BLEUART_H_ */ |