nrf51822/nRF51Gap.cpp

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/* mbed Microcontroller Library
* Copyright (c) 2006-2013 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.
*/
#include "nRF51Gap.h"
#include "mbed.h"
#include "common/common.h"
#include "ble_advdata.h"
#include "ble_hci.h"
/**************************************************************************/
/*!
@brief Sets the advertising parameters and payload for the device
@param[in] params
Basic advertising details, including the advertising
delay, timeout and how the device should be advertised
@params[in] advData
The primary advertising data payload
@params[in] scanResponse
The optional Scan Response payload if the advertising
type is set to \ref GapAdvertisingParams::ADV_SCANNABLE_UNDIRECTED
in \ref GapAdveritinngParams
@returns \ref ble_error_t
@retval BLE_ERROR_NONE
Everything executed properly
@retval BLE_ERROR_BUFFER_OVERFLOW
The proposed action would cause a buffer overflow. All
advertising payloads must be <= 31 bytes, for example.
@retval BLE_ERROR_NOT_IMPLEMENTED
A feature was requested that is not yet supported in the
nRF51 firmware or hardware.
@retval BLE_ERROR_PARAM_OUT_OF_RANGE
One of the proposed values is outside the valid range.
@section EXAMPLE
@code
@endcode
*/
/**************************************************************************/
ble_error_t nRF51Gap::setAdvertisingData(const GapAdvertisingData &advData, const GapAdvertisingData &scanResponse)
{
/* Make sure we don't exceed the advertising payload length */
if (advData.getPayloadLen() > GAP_ADVERTISING_DATA_MAX_PAYLOAD) {
return BLE_ERROR_BUFFER_OVERFLOW;
}
/* Make sure we have a payload! */
if (advData.getPayloadLen() == 0) {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
/* Check the scan response payload limits */
//if ((params.getAdvertisingType() == GapAdvertisingParams::ADV_SCANNABLE_UNDIRECTED))
//{
// /* Check if we're within the upper limit */
// if (advData.getPayloadLen() > GAP_ADVERTISING_DATA_MAX_PAYLOAD)
// {
// return BLE_ERROR_BUFFER_OVERFLOW;
// }
// /* Make sure we have a payload! */
// if (advData.getPayloadLen() == 0)
// {
// return BLE_ERROR_PARAM_OUT_OF_RANGE;
// }
//}
/* Send advertising data! */
ASSERT(ERROR_NONE ==
sd_ble_gap_adv_data_set(advData.getPayload(),
advData.getPayloadLen(),
scanResponse.getPayload(),
scanResponse.getPayloadLen()),
BLE_ERROR_PARAM_OUT_OF_RANGE);
/* Make sure the GAP Service appearance value is aligned with the
*appearance from GapAdvertisingData */
ASSERT(ERROR_NONE == sd_ble_gap_appearance_set(advData.getAppearance()),
BLE_ERROR_PARAM_OUT_OF_RANGE);
/* ToDo: Perform some checks on the payload, for example the Scan Response can't */
/* contains a flags AD type, etc. */
return BLE_ERROR_NONE;
}
/**************************************************************************/
/*!
@brief Starts the BLE HW, initialising any services that were
added before this function was called.
@note All services must be added before calling this function!
@returns ble_error_t
@retval BLE_ERROR_NONE
Everything executed properly
@section EXAMPLE
@code
@endcode
*/
/**************************************************************************/
ble_error_t nRF51Gap::startAdvertising(const GapAdvertisingParams &params)
{
/* Make sure we support the advertising type */
if (params.getAdvertisingType() == GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) {
/* ToDo: This requires a propery security implementation, etc. */
return BLE_ERROR_NOT_IMPLEMENTED;
}
/* Check interval range */
if (params.getAdvertisingType() == GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED) {
/* Min delay is slightly longer for unconnectable devices */
if ((params.getInterval() < GAP_ADV_PARAMS_INTERVAL_MIN_NONCON) ||
(params.getInterval() > GAP_ADV_PARAMS_INTERVAL_MAX)) {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
} else {
if ((params.getInterval() < GAP_ADV_PARAMS_INTERVAL_MIN) ||
(params.getInterval() > GAP_ADV_PARAMS_INTERVAL_MAX)) {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
}
/* Check timeout is zero for Connectable Directed */
if ((params.getAdvertisingType() == GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) && (params.getTimeout() != 0)) {
/* Timeout must be 0 with this type, although we'll never get here */
/* since this isn't implemented yet anyway */
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
/* Check timeout for other advertising types */
if ((params.getAdvertisingType() != GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) &&
(params.getTimeout() > GAP_ADV_PARAMS_TIMEOUT_MAX)) {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
/* Start Advertising */
ble_gap_adv_params_t adv_para = {0};
adv_para.type = params.getAdvertisingType();
adv_para.p_peer_addr = NULL; // Undirected advertisement
adv_para.fp = BLE_GAP_ADV_FP_ANY;
adv_para.p_whitelist = NULL;
adv_para.interval = params.getInterval(); // advertising interval (in units of 0.625 ms)
adv_para.timeout = params.getTimeout();
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ASSERT(ERROR_NONE == sd_ble_gap_adv_start(&adv_para), BLE_ERROR_PARAM_OUT_OF_RANGE);
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state.advertising = 1;
return BLE_ERROR_NONE;
}
/**************************************************************************/
/*!
@brief Stops the BLE HW and disconnects from any devices
@returns ble_error_t
@retval BLE_ERROR_NONE
Everything executed properly
@section EXAMPLE
@code
@endcode
*/
/**************************************************************************/
ble_error_t nRF51Gap::stopAdvertising(void)
{
/* Stop Advertising */
ASSERT(ERROR_NONE == sd_ble_gap_adv_stop(), BLE_ERROR_PARAM_OUT_OF_RANGE);
state.advertising = 0;
return BLE_ERROR_NONE;
}
/**************************************************************************/
/*!
@brief Disconnects if we are connected to a central device
@returns ble_error_t
@retval BLE_ERROR_NONE
Everything executed properly
@section EXAMPLE
@code
@endcode
*/
/**************************************************************************/
ble_error_t nRF51Gap::disconnect(void)
{
state.advertising = 0;
state.connected = 0;
/* Disconnect if we are connected to a central device */
ASSERT_INT(ERROR_NONE,
sd_ble_gap_disconnect(m_connectionHandle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION), BLE_ERROR_PARAM_OUT_OF_RANGE);
return BLE_ERROR_NONE;
}
ble_error_t nRF51Gap::getPreferredConnectionParams(ConnectionParams_t *params)
{
ASSERT_INT(NRF_SUCCESS,
sd_ble_gap_ppcp_get(reinterpret_cast<ble_gap_conn_params_t *>(params)),
BLE_ERROR_PARAM_OUT_OF_RANGE);
return BLE_ERROR_NONE;
}
ble_error_t nRF51Gap::setPreferredConnectionParams(const ConnectionParams_t *params)
{
ASSERT_INT(NRF_SUCCESS,
sd_ble_gap_ppcp_set(reinterpret_cast<const ble_gap_conn_params_t *>(params)),
BLE_ERROR_PARAM_OUT_OF_RANGE);
return BLE_ERROR_NONE;
}
ble_error_t nRF51Gap::updateConnectionParams(Handle_t handle, const ConnectionParams_t *newParams)
{
uint32_t rc;
rc = sd_ble_gap_conn_param_update(handle,
reinterpret_cast<ble_gap_conn_params_t *>(const_cast<ConnectionParams_t*>(newParams)));
if (rc == NRF_SUCCESS) {
return BLE_ERROR_NONE;
} else {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
}
/**************************************************************************/
/*!
@brief Sets the 16-bit connection handle
*/
/**************************************************************************/
void nRF51Gap::setConnectionHandle(uint16_t con_handle)
{
m_connectionHandle = con_handle;
}
/**************************************************************************/
/*!
@brief Gets the 16-bit connection handle
*/
/**************************************************************************/
uint16_t nRF51Gap::getConnectionHandle(void)
{
return m_connectionHandle;
}
/**************************************************************************/
/*!
@brief Sets the BLE device address
@returns ble_error_t
@section EXAMPLE
@code
uint8_t device_address[6] = { 0xca, 0xfe, 0xf0, 0xf0, 0xf0, 0xf0 };
nrf.getGap().setAddress(Gap::ADDR_TYPE_RANDOM_STATIC, device_address);
@endcode
*/
/**************************************************************************/
ble_error_t nRF51Gap::setAddress(addr_type_t type, const uint8_t address[6])
{
if (type > ADDR_TYPE_RANDOM_PRIVATE_NON_RESOLVABLE) {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
ble_gap_addr_t dev_addr;
dev_addr.addr_type = type;
memcpy(dev_addr.addr, address, 6);
ASSERT_INT(ERROR_NONE,
sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &dev_addr),
BLE_ERROR_PARAM_OUT_OF_RANGE);
return BLE_ERROR_NONE;
}