Switch Science / Mbed 2 deprecated mbed_EddystoneURL_Beacon_ssci

Sample program

Dependencies:   BLE_API mbed nRF51822

Fork of mbed_EddystoneURL_Beacon_ssci by Mako SHIMURA

nrfConfigParamsPersistence.cpp@6:30b60c0cd516, 2016-04-26 (annotated)

Committer:
asagin
Date:
Tue Apr 26 06:44:55 2016 +0000
Revision:
6:30b60c0cd516
Parent:
1:0ad7573b5918 
changed URL

Who changed what in which revision?

UserRevisionLine numberNew contents of line
roywant 0:094734b4e8bd 1 /* mbed Microcontroller Library
roywant 0:094734b4e8bd 2 * Copyright (c) 2006-2015 ARM Limited
roywant 0:094734b4e8bd 3 *
roywant 0:094734b4e8bd 4 * Licensed under the Apache License, Version 2.0 (the "License");
roywant 0:094734b4e8bd 5 * you may not use this file except in compliance with the License.
roywant 0:094734b4e8bd 6 * You may obtain a copy of the License at
roywant 0:094734b4e8bd 7 *
roywant 0:094734b4e8bd 8 * http://www.apache.org/licenses/LICENSE-2.0
roywant 0:094734b4e8bd 9 *
roywant 0:094734b4e8bd 10 * Unless required by applicable law or agreed to in writing, software
roywant 0:094734b4e8bd 11 * distributed under the License is distributed on an "AS IS" BASIS,
roywant 0:094734b4e8bd 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
roywant 0:094734b4e8bd 13 * See the License for the specific language governing permissions and
roywant 0:094734b4e8bd 14 * limitations under the License.
roywant 0:094734b4e8bd 15 */
roywant 0:094734b4e8bd 16
roywant 0:094734b4e8bd 17 #include "pstorage.h"
roywant 0:094734b4e8bd 18 #include "nrf_error.h"
roywant 0:094734b4e8bd 19 #include "ConfigParamsPersistence.h"
roywant 0:094734b4e8bd 20
roywant 0:094734b4e8bd 21 /**
roywant 0:094734b4e8bd 22 * Nordic specific structure used to store params persistently.
roywant 1:0ad7573b5918 23 * It extends EddystoneURLConfigService::Params_t with a persistence signature.
roywant 0:094734b4e8bd 24 */
roywant 0:094734b4e8bd 25 struct PersistentParams_t {
roywant 1:0ad7573b5918 26 EddystoneURLConfigService::Params_t params;
roywant 0:094734b4e8bd 27 uint32_t persistenceSignature; /* This isn't really a parameter, but having the expected
roywant 0:094734b4e8bd 28 * magic value in this field indicates persistence. */
roywant 0:094734b4e8bd 29
roywant 0:094734b4e8bd 30 static const uint32_t MAGIC = 0x1BEAC000; /* Magic that identifies persistence */
roywant 0:094734b4e8bd 31 };
roywant 0:094734b4e8bd 32
roywant 0:094734b4e8bd 33 /**
roywant 0:094734b4e8bd 34 * The following is a module-local variable to hold configuration parameters for
roywant 0:094734b4e8bd 35 * short periods during flash access. This is necessary because the pstorage
roywant 0:094734b4e8bd 36 * APIs don't copy in the memory provided as data source. The memory cannot be
roywant 0:094734b4e8bd 37 * freed or reused by the application until this flash access is complete. The
roywant 0:094734b4e8bd 38 * load and store operations in this module initialize persistentParams and then
roywant 0:094734b4e8bd 39 * pass it on to the 'pstorage' APIs.
roywant 0:094734b4e8bd 40 */
roywant 0:094734b4e8bd 41 static PersistentParams_t persistentParams;
roywant 0:094734b4e8bd 42
roywant 0:094734b4e8bd 43 static pstorage_handle_t pstorageHandle;
roywant 0:094734b4e8bd 44
roywant 0:094734b4e8bd 45 /**
roywant 0:094734b4e8bd 46 * Dummy callback handler needed by Nordic's pstorage module. This is called
roywant 0:094734b4e8bd 47 * after every flash access.
roywant 0:094734b4e8bd 48 */
roywant 0:094734b4e8bd 49 static void pstorageNotificationCallback(pstorage_handle_t *p_handle,
roywant 0:094734b4e8bd 50 uint8_t op_code,
roywant 0:094734b4e8bd 51 uint32_t result,
roywant 0:094734b4e8bd 52 uint8_t *p_data,
roywant 0:094734b4e8bd 53 uint32_t data_len)
roywant 0:094734b4e8bd 54 {
roywant 0:094734b4e8bd 55 /* APP_ERROR_CHECK(result); */
roywant 0:094734b4e8bd 56 }
roywant 0:094734b4e8bd 57
roywant 0:094734b4e8bd 58 /* Platform-specific implementation for persistence on the nRF5x. Based on the
roywant 0:094734b4e8bd 59 * pstorage module provided by the Nordic SDK. */
roywant 1:0ad7573b5918 60 bool loadEddystoneURLConfigParams(EddystoneURLConfigService::Params_t *paramsP)
roywant 0:094734b4e8bd 61 {
roywant 0:094734b4e8bd 62 static bool pstorageInitied = false;
roywant 0:094734b4e8bd 63 if (!pstorageInitied) {
roywant 0:094734b4e8bd 64 pstorage_init();
roywant 0:094734b4e8bd 65
roywant 0:094734b4e8bd 66 static pstorage_module_param_t pstorageParams = {
roywant 0:094734b4e8bd 67 .cb = pstorageNotificationCallback,
roywant 0:094734b4e8bd 68 .block_size = sizeof(PersistentParams_t),
roywant 0:094734b4e8bd 69 .block_count = 1
roywant 0:094734b4e8bd 70 };
roywant 0:094734b4e8bd 71 pstorage_register(&pstorageParams, &pstorageHandle);
roywant 0:094734b4e8bd 72 pstorageInitied = true;
roywant 0:094734b4e8bd 73 }
roywant 0:094734b4e8bd 74
roywant 0:094734b4e8bd 75 if ((pstorage_load(reinterpret_cast<uint8_t *>(&persistentParams), &pstorageHandle, sizeof(PersistentParams_t), 0) != NRF_SUCCESS) ||
roywant 0:094734b4e8bd 76 (persistentParams.persistenceSignature != PersistentParams_t::MAGIC)) {
roywant 0:094734b4e8bd 77 // On failure zero out and let the service reset to defaults
roywant 1:0ad7573b5918 78 memset(paramsP, 0, sizeof(EddystoneURLConfigService::Params_t));
roywant 0:094734b4e8bd 79 return false;
roywant 0:094734b4e8bd 80 }
roywant 0:094734b4e8bd 81
roywant 1:0ad7573b5918 82 memcpy(paramsP, &persistentParams.params, sizeof(EddystoneURLConfigService::Params_t));
roywant 0:094734b4e8bd 83 return true;
roywant 0:094734b4e8bd 84 }
roywant 0:094734b4e8bd 85
roywant 0:094734b4e8bd 86 /* Platform-specific implementation for persistence on the nRF5x. Based on the
roywant 0:094734b4e8bd 87 * pstorage module provided by the Nordic SDK. */
roywant 1:0ad7573b5918 88 void saveEddystoneURLConfigParams(const EddystoneURLConfigService::Params_t *paramsP)
roywant 0:094734b4e8bd 89 {
roywant 1:0ad7573b5918 90 memcpy(&persistentParams.params, paramsP, sizeof(EddystoneURLConfigService::Params_t));
roywant 0:094734b4e8bd 91 if (persistentParams.persistenceSignature != PersistentParams_t::MAGIC) {
roywant 0:094734b4e8bd 92 persistentParams.persistenceSignature = PersistentParams_t::MAGIC;
roywant 0:094734b4e8bd 93 pstorage_store(&pstorageHandle,
roywant 0:094734b4e8bd 94 reinterpret_cast<uint8_t *>(&persistentParams),
roywant 0:094734b4e8bd 95 sizeof(PersistentParams_t),
roywant 0:094734b4e8bd 96 0 /* offset */);
roywant 0:094734b4e8bd 97 } else {
roywant 0:094734b4e8bd 98 pstorage_update(&pstorageHandle,
roywant 0:094734b4e8bd 99 reinterpret_cast<uint8_t *>(&persistentParams),
roywant 0:094734b4e8bd 100 sizeof(PersistentParams_t),
roywant 0:094734b4e8bd 101 0 /* offset */);
roywant 0:094734b4e8bd 102 }
roywant 0:094734b4e8bd 103 }