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"
nRF51Gap &nRF51Gap::getInstance() {
static nRF51Gap m_instance;
return m_instance;
}
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/**************************************************************************/
/*!
@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() < GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MIN_NONCON) ||
(params.getInterval() > GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MAX)) {
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return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
} else {
if ((params.getInterval() < GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MIN) ||
(params.getInterval() > GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MAX)) {
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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() > GapAdvertisingParams::GAP_ADV_PARAMS_TIMEOUT_MAX)) {
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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;
}
ble_error_t nRF51Gap::connect(const Address_t peerAddr,
Gap::AddressType_t peerAddrType,
const ConnectionParams_t *connectionParams,
const GapScanningParams *scanParamsIn)
{
ble_gap_addr_t addr;
addr.addr_type = peerAddrType;
memcpy(addr.addr, peerAddr, Gap::ADDR_LEN);
ble_gap_conn_params_t connParams;
if (connectionParams != NULL) {
connParams.min_conn_interval = connectionParams->minConnectionInterval;
connParams.max_conn_interval = connectionParams->maxConnectionInterval;
connParams.slave_latency = connectionParams->slaveLatency;
connParams.conn_sup_timeout = connectionParams->connectionSupervisionTimeout;
} else {
connParams.min_conn_interval = 50;
connParams.max_conn_interval = 100;
connParams.slave_latency = 0;
connParams.conn_sup_timeout = 600;
}
ble_gap_scan_params_t scanParams;
scanParams.active = 0; /**< If 1, perform active scanning (scan requests). */
scanParams.selective = 0; /**< If 1, ignore unknown devices (non whitelisted). */
scanParams.p_whitelist = NULL; /**< Pointer to whitelist, NULL if none is given. */
if (scanParamsIn != NULL) {
scanParams.interval = scanParamsIn->getInterval(); /**< Scan interval between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */
scanParams.window = scanParamsIn->getWindow(); /**< Scan window between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */
scanParams.timeout = scanParamsIn->getTimeout(); /**< Scan timeout between 0x0001 and 0xFFFF in seconds, 0x0000 disables timeout. */
} else {
scanParams.interval = 500; /**< Scan interval between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */
scanParams.window = 200; /**< Scan window between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */
scanParams.timeout = 0; /**< Scan timeout between 0x0001 and 0xFFFF in seconds, 0x0000 disables timeout. */
}
uint32_t rc = sd_ble_gap_connect(&addr, &scanParams, &connParams);
if (rc == NRF_SUCCESS) {
return BLE_ERROR_NONE;
}
switch (rc) {
case NRF_ERROR_INVALID_ADDR:
return BLE_ERROR_INVALID_PARAM;
case NRF_ERROR_INVALID_PARAM:
return BLE_ERROR_INVALID_PARAM;
case NRF_ERROR_INVALID_STATE:
return BLE_ERROR_INVALID_STATE;
case BLE_ERROR_GAP_INVALID_BLE_ADDR:
return BLE_ERROR_INVALID_PARAM;
case NRF_ERROR_NO_MEM:
return BLE_ERROR_NO_MEM;
case NRF_ERROR_BUSY:
return BLE_STACK_BUSY;
default:
case BLE_ERROR_GAP_WHITELIST_IN_USE:
return BLE_ERROR_UNSPECIFIED;
}
}
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/**************************************************************************/
/*!
@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(DisconnectionReason_t reason)
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{
state.advertising = 0;
state.connected = 0;
uint8_t code = BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION;
switch (reason) {
case REMOTE_USER_TERMINATED_CONNECTION:
code = BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION;
break;
case CONN_INTERVAL_UNACCEPTABLE:
code = BLE_HCI_CONN_INTERVAL_UNACCEPTABLE;
break;
}
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/* Disconnect if we are connected to a central device */
ASSERT_INT(ERROR_NONE, sd_ble_gap_disconnect(m_connectionHandle, code), BLE_ERROR_PARAM_OUT_OF_RANGE);
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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;
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rc = sd_ble_gap_conn_param_update(handle, reinterpret_cast<ble_gap_conn_params_t *>(const_cast<ConnectionParams_t*>(newParams)));
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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(AddressType_t type, const Address_t address)
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{
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, ADDR_LEN);
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ASSERT_INT(ERROR_NONE, sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &dev_addr), BLE_ERROR_PARAM_OUT_OF_RANGE);
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return BLE_ERROR_NONE;
}
ble_error_t nRF51Gap::getAddress(AddressType_t *typeP, Address_t address)
{
ble_gap_addr_t dev_addr;
if (sd_ble_gap_address_get(&dev_addr) != NRF_SUCCESS) {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
if (typeP != NULL) {
*typeP = static_cast<AddressType_t>(dev_addr.addr_type);
}
if (address != NULL) {
memcpy(address, dev_addr.addr, ADDR_LEN);
}
return BLE_ERROR_NONE;
}
ble_error_t nRF51Gap::setDeviceName(const uint8_t *deviceName)
{
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode); // no security is needed
if (sd_ble_gap_device_name_set(&sec_mode, deviceName, strlen((const char *)deviceName)) == NRF_SUCCESS) {
return BLE_ERROR_NONE;
} else {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
}
ble_error_t nRF51Gap::getDeviceName(uint8_t *deviceName, unsigned *lengthP)
{
if (sd_ble_gap_device_name_get(deviceName, (uint16_t *)lengthP) == NRF_SUCCESS) {
return BLE_ERROR_NONE;
} else {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
}
ble_error_t nRF51Gap::setAppearance(uint16_t appearance)
{
if (sd_ble_gap_appearance_set(appearance) == NRF_SUCCESS) {
return BLE_ERROR_NONE;
} else {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
}
ble_error_t nRF51Gap::getAppearance(uint16_t *appearanceP)
{
if (sd_ble_gap_appearance_get(appearanceP)) {
return BLE_ERROR_NONE;
} else {
return BLE_ERROR_PARAM_OUT_OF_RANGE;
}
}