added basic code

1 files changed, 147 insertions, 0 deletions

diff --git a/arduino/libraries/Bluefruit52Lib/src/clients/BLEClientUart.cpp b/arduino/libraries/Bluefruit52Lib/src/clients/BLEClientUart.cpp
new file mode 100755
index 0000000..9ba507e
--- /dev/null
+++ b/arduino/libraries/Bluefruit52Lib/src/clients/BLEClientUart.cpp
@@ -0,0 +1,147 @@
+/**************************************************************************/
+/*!
+    @file     BLEClientUart.cpp
+    @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.
+*/
+/**************************************************************************/
+
+#include "bluefruit.h"
+
+void bleuart_central_notify_cb(BLEClientCharacteristic* chr, uint8_t* data, uint16_t len);
+
+BLEClientUart::BLEClientUart(uint16_t fifo_depth)
+  : BLEClientService(BLEUART_UUID_SERVICE), _txd(BLEUART_UUID_CHR_TXD), _rxd(BLEUART_UUID_CHR_RXD),
+    _rx_fifo(1, fifo_depth)
+{
+  _rx_cb = NULL;
+}
+
+bool BLEClientUart::begin(void)
+{
+  _rx_fifo.begin();
+
+  // Invoke base class begin()
+  BLEClientService::begin();
+
+  _rxd.begin(this);
+  _txd.begin(this);
+
+  // set up notify callback
+  _txd.setNotifyCallback(bleuart_central_notify_cb);
+
+  return true;
+}
+
+bool BLEClientUart::enableTXD(void)
+{
+  return _txd.enableNotify();
+}
+
+bool BLEClientUart::disableTXD(void)
+{
+  return _txd.disableNotify();
+}
+
+void BLEClientUart::setRxCallback( rx_callback_t fp)
+{
+  _rx_cb = fp;
+}
+
+bool BLEClientUart::discover(uint16_t conn_handle)
+{
+  // Call Base class discover
+  VERIFY( BLEClientService::discover(conn_handle) );
+  _conn_hdl = BLE_CONN_HANDLE_INVALID; // make as invalid until we found all chars
+
+  // Discover TXD, RXD characteristics
+  VERIFY( 2 == Bluefruit.Discovery.discoverCharacteristic(conn_handle, _rxd, _txd) );
+
+  _conn_hdl = conn_handle;
+  return true;
+}
+
+void BLEClientUart::disconnect(void)
+{
+  BLEClientService::disconnect();
+
+  flush();
+}
+
+void bleuart_central_notify_cb(BLEClientCharacteristic* chr, uint8_t* data, uint16_t len)
+{
+  BLEClientUart& uart_svc = (BLEClientUart&) chr->parentService();
+  uart_svc._rx_fifo.write(data, len);
+
+  // invoke callback
+  if ( uart_svc._rx_cb ) uart_svc._rx_cb(uart_svc);
+}
+
+/*------------------------------------------------------------------*/
+/* STREAM API
+ *------------------------------------------------------------------*/
+int BLEClientUart::read (void)
+{
+  uint8_t ch;
+  return read(&ch, 1) ? (int) ch : EOF;
+}
+
+int BLEClientUart::read (uint8_t * buf, size_t size)
+{
+  return _rx_fifo.read(buf, size);
+}
+
+size_t BLEClientUart::write (uint8_t b)
+{
+  return write(&b, 1);
+}
+
+size_t BLEClientUart::write (const uint8_t *content, size_t len)
+{
+  // write without response
+  return _rxd.write(content, len);
+}
+
+int BLEClientUart::available (void)
+{
+  return _rx_fifo.count();
+}
+
+int BLEClientUart::peek (void)
+{
+  uint8_t ch;
+  return _rx_fifo.peek(&ch) ? (int) ch : EOF;
+}
+
+void BLEClientUart::flush (void)
+{
+  _rx_fifo.clear();
+}