mbed-os/connectivity/FEATURE_BLE/include/ble/driver/H4TransportDriver.h

82 lines
2.1 KiB
C++

/* mbed Microcontroller Library
* Copyright (c) 2017-2017 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef IMPL_H4_TRANSPORT_DRIVER_H_
#define IMPL_H4_TRANSPORT_DRIVER_H_
#if (DEVICE_SERIAL && DEVICE_SERIAL_FC) || defined(DOXYGEN_ONLY)
#include <cstdint>
#include "drivers/UnbufferedSerial.h"
#include "ble/driver/CordioHCITransportDriver.h"
namespace ble {
/**
* Implementation of the H4 driver.
*
* @note This HCI transport implementation is not accessible to devices that do
* not expose serial flow control.
*/
class H4TransportDriver : public CordioHCITransportDriver {
public:
/**
* Initialize the transport driver.
*
* @param tx tx pin name.
* @param rx rx pin name
* @param cts cts pin name
* @param rts rts pin name.
* @param baud baud use to communicate with the ble module
*/
H4TransportDriver(PinName tx, PinName rx, PinName cts, PinName rts, int baud);
/**
* Destructor
*/
~H4TransportDriver() override = default;
/**
* @see CordioHCITransportDriver::initialize
*/
void initialize() override;
/**
* @see CordioHCITransportDriver::terminate
*/
void terminate() override;
/**
* @see CordioHCITransportDriver::write
*/
uint16_t write(uint8_t type, uint16_t len, uint8_t *pData) override;
private:
void on_controller_irq();
// Use UnbufferedSerial as we don't require locking primitives.
// We access the peripheral in interrupt context.
mbed::UnbufferedSerial uart;
PinName cts;
PinName rts;
};
} // namespace ble
#endif
#endif /* IMPL_H4_TRANSPORT_DRIVER_H_ */