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Fork of nRF51822 by
source/nRF5xn.cpp
- Committer:
- LancasterUniversity
- Date:
- 2016-04-06
- Revision:
- 616:a8f9b022d8fd
- Parent:
- 615:65ea2acfc6a2
File content as of revision 616:a8f9b022d8fd:
/* 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. */ #ifdef YOTTA_CFG_MBED_OS #include "mbed-drivers/mbed.h" #else #include "mbed.h" #endif #include "nRF5xn.h" #include "ble/blecommon.h" #include "nrf_soc.h" #include "btle/btle.h" #include "nrf_delay.h" extern "C" { #include "softdevice_handler.h" } /** * The singleton which represents the nRF51822 transport for the BLE. */ static nRF5xn *deviceInstance = NULL; /** * BLE-API requires an implementation of the following function in order to * obtain its transport handle. */ BLEInstanceBase * createBLEInstance(void) { return &nRF5xn::Instance(BLE::DEFAULT_INSTANCE); } nRF5xn& nRF5xn::Instance(BLE::InstanceID_t instanceId) { if (deviceInstance == NULL) deviceInstance = new nRF5xn(); return *deviceInstance; } nRF5xn::nRF5xn(void) : initialized(false), instanceID(BLE::DEFAULT_INSTANCE), gapInstance(), gattServerInstance(NULL), gattClientInstance(NULL), securityManagerInstance(NULL) { } nRF5xn::~nRF5xn(void) { } const char *nRF5xn::getVersion(void) { if (!initialized) { return "INITIALIZATION_INCOMPLETE"; } static char versionString[32]; 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; } versionFetched = true; } else { strncpy(versionString, "unknown", sizeof(versionString)); } } return versionString; } /**************************************************************************/ /*! @brief Initialize the BLE stack. @returns ble_error_t @retval BLE_ERROR_NONE if everything executed properly and BLE_ERROR_ALREADY_INITIALIZED if the stack has already been initialized (possibly through a call to nRF5xn::init()). BLE_ERROR_INTERNAL_STACK_FAILURE is returned if initialization of the internal stack (SoftDevice) failed. */ /**************************************************************************/ ble_error_t nRF5xn::init(BLE::InstanceID_t instanceID, FunctionPointerWithContext<BLE::InitializationCompleteCallbackContext *> callback) { if (initialized) { BLE::InitializationCompleteCallbackContext context = { BLE::Instance(instanceID), BLE_ERROR_ALREADY_INITIALIZED }; callback.call(&context); return BLE_ERROR_ALREADY_INITIALIZED; } instanceID = instanceID; /* ToDo: Clear memory contents, reset the SD, etc. */ if (btle_init() != ERROR_NONE) { return BLE_ERROR_INTERNAL_STACK_FAILURE; } initialized = true; BLE::InitializationCompleteCallbackContext context = { BLE::Instance(instanceID), BLE_ERROR_NONE }; callback.call(&context); return BLE_ERROR_NONE; } /**************************************************************************/ /*! @brief Purge the BLE stack of GATT and GAP state. @returns ble_error_t @retval BLE_ERROR_NONE Everything executed properly @note When using S110, GattClient::shutdown() will not be called since Gatt client features are not supported. */ /**************************************************************************/ ble_error_t nRF5xn::shutdown(void) { if (!initialized) { return BLE_ERROR_INITIALIZATION_INCOMPLETE; } /* * Shutdown the SoftDevice first. This is because we need to disable all * interrupts. Otherwise if we clear the BLE API and glue code first there * will be many NULL references and no config information which could lead * to errors if the shutdown process is interrupted. */ if (softdevice_handler_sd_disable() != NRF_SUCCESS) { return BLE_STACK_BUSY; } /* Shutdown the BLE API and nRF51 glue code */ ble_error_t error; if (gattServerInstance != NULL) { error = gattServerInstance->reset(); if (error != BLE_ERROR_NONE) { return error; } } if (securityManagerInstance != NULL) { error = securityManagerInstance->reset(); if (error != BLE_ERROR_NONE) { return error; } } /* S110 does not support BLE client features, nothing to reset. */ #if !defined(TARGET_MCU_NRF51_16K_S110) && !defined(TARGET_MCU_NRF51_32K_S110) if (gattClientInstance != NULL) { error = gattClientInstance->reset(); if (error != BLE_ERROR_NONE) { return error; } } #endif /* Gap instance is always present */ error = gapInstance.reset(); if (error != BLE_ERROR_NONE) { return error; } initialized = false; return BLE_ERROR_NONE; } void nRF5xn::waitForEvent(void) { sd_app_evt_wait(); }