nrf51822/source/nRF5xn.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 "mbed.h"
#include "nRF5xn.h"
#include "ble/blecommon.h"
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#include "nrf_soc.h"
#include "btle/btle.h"
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#include "nrf_delay.h"
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#include "softdevice_handler.h"
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/**
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* The singleton which represents the nRF51822 transport for the BLE.
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*/
static nRF5xn deviceInstance;
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/**
* BLE-API requires an implementation of the following function in order to
* obtain its transport handle.
*/
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BLEInstanceBase *
createBLEInstance(void)
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{
return (&deviceInstance);
}
nRF5xn::nRF5xn(void) : initialized(false), instanceID(BLE::DEFAULT_INSTANCE)
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{
}
nRF5xn::~nRF5xn(void)
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{
}
const char *nRF5xn::getVersion(void)
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{
if (!initialized) {
return "INITIALIZATION_INCOMPLETE";
}
static char versionString[32];
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static bool versionFetched = false;
if (!versionFetched) {
ble_version_t version;
if ((sd_ble_version_get(&version) == NRF_SUCCESS) && (version.company_id == 0x0059)) {
switch (version.version_number) {
case 0x07:
case 0x08:
snprintf(versionString, sizeof(versionString), "Nordic BLE4.1 ver:%u fw:%04x", version.version_number, version.subversion_number);
break;
default:
snprintf(versionString, sizeof(versionString), "Nordic (spec unknown) ver:%u fw:%04x", version.version_number, version.subversion_number);
break;
}
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versionFetched = true;
} else {
strncpy(versionString, "unknown", sizeof(versionString));
}
}
return versionString;
}
ble_error_t nRF5xn::init(BLE::InstanceID_t instanceID, FunctionPointerWithContext<BLE::InitializationCompleteCallbackContext *> callback)
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{
if (initialized) {
BLE::InitializationCompleteCallbackContext context = {
BLE::Instance(instanceID),
BLE_ERROR_ALREADY_INITIALIZED
};
callback.call(&context);
return BLE_ERROR_ALREADY_INITIALIZED;
}
instanceID = instanceID;
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/* ToDo: Clear memory contents, reset the SD, etc. */
btle_init();
initialized = true;
BLE::InitializationCompleteCallbackContext context = {
BLE::Instance(instanceID),
BLE_ERROR_NONE
};
callback.call(&context);
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return BLE_ERROR_NONE;
}
ble_error_t nRF5xn::shutdown(void)
{
if (!initialized) {
return BLE_ERROR_INITIALIZATION_INCOMPLETE;
}
if(softdevice_handler_sd_disable() != NRF_SUCCESS) {
return BLE_STACK_BUSY;
}
initialized = false;
return BLE_ERROR_NONE;
}
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void
nRF5xn::waitForEvent(void)
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{
sd_app_evt_wait();
}