MySystemStorage.cpp

00001 /*
00002  * Copyright (c) 2018 ARM Limited. All rights reserved.
00003  * SPDX-License-Identifier: Apache-2.0
00004  * Licensed under the Apache License, Version 2.0 (the License); you may
00005  * not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  * http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an AS IS BASIS, WITHOUT
00012  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include "BlockDevice.h"
00017 #include "FileSystem.h"
00018 #include "FATFileSystem.h"
00019 #include "LittleFileSystem.h"
00020 
00021 #if COMPONENT_SPIF
00022 #include "SPIFBlockDevice.h"
00023 #endif
00024 
00025 #if COMPONENT_QSPIF
00026 #include "QSPIFBlockDevice.h"
00027 #endif
00028 
00029 #if COMPONENT_DATAFLASH
00030 #include "DataFlashBlockDevice.h"
00031 #endif
00032 
00033 #if COMPONENT_SD
00034 #include "SDBlockDevice.h"
00035 #endif
00036 
00037 #if COMPONENT_FLASHIAP
00038 #include "FlashIAPBlockDevice.h"
00039 #endif
00040 
00041 #if COMPONENT_NUSD
00042 #include "NuSDBlockDevice.h"
00043 #endif
00044 
00045 using namespace mbed;
00046 
00047 // Align a value to a specified size.
00048 // Parameters :
00049 // val           - [IN]   Value.
00050 // size          - [IN]   Size.
00051 // Return        : Aligned value.
00052 static inline uint32_t align_up(uint32_t val, uint32_t size)
00053 {
00054     return (((val - 1) / size) + 1) * size;
00055 }
00056 
00057 BlockDevice *BlockDevice::get_default_instance()
00058 {
00059 #if COMPONENT_SPIF
00060 
00061     static SPIFBlockDevice default_bd(
00062         MBED_CONF_SPIF_DRIVER_SPI_MOSI,
00063         MBED_CONF_SPIF_DRIVER_SPI_MISO,
00064         MBED_CONF_SPIF_DRIVER_SPI_CLK,
00065         MBED_CONF_SPIF_DRIVER_SPI_CS,
00066         MBED_CONF_SPIF_DRIVER_SPI_FREQ
00067     );
00068 
00069     return &default_bd;
00070 
00071 #elif COMPONENT_QSPIF
00072 
00073     static QSPIFBlockDevice default_bd(
00074         MBED_CONF_QSPIF_QSPI_IO0,
00075         MBED_CONF_QSPIF_QSPI_IO1,
00076         MBED_CONF_QSPIF_QSPI_IO2,
00077         MBED_CONF_QSPIF_QSPI_IO3,
00078         MBED_CONF_QSPIF_QSPI_SCK,
00079         MBED_CONF_QSPIF_QSPI_CSN,
00080         MBED_CONF_QSPIF_QSPI_POLARITY_MODE,
00081         MBED_CONF_QSPIF_QSPI_FREQ
00082     );
00083 
00084     return &default_bd;
00085 
00086 #elif COMPONENT_DATAFLASH
00087 
00088     static DataFlashBlockDevice default_bd(
00089         MBED_CONF_DATAFLASH_SPI_MOSI,
00090         MBED_CONF_DATAFLASH_SPI_MISO,
00091         MBED_CONF_DATAFLASH_SPI_CLK,
00092         MBED_CONF_DATAFLASH_SPI_CS
00093     );
00094 
00095     return &default_bd;
00096 
00097 #elif COMPONENT_SD
00098 
00099     static SDBlockDevice default_bd(
00100         MBED_CONF_SD_SPI_MOSI,
00101         MBED_CONF_SD_SPI_MISO,
00102         MBED_CONF_SD_SPI_CLK,
00103         MBED_CONF_SD_SPI_CS
00104     );
00105 
00106     return &default_bd;
00107 
00108 #elif COMPONENT_NUSD
00109 
00110     static NuSDBlockDevice default_bd;
00111 
00112     return &default_bd;
00113 
00114 #elif COMPONENT_FLASHIAP
00115 
00116 #if (MBED_CONF_FLASHIAP_BLOCK_DEVICE_SIZE == 0) && (MBED_CONF_FLASHIAP_BLOCK_DEVICE_BASE_ADDRESS == 0xFFFFFFFF)
00117 
00118     size_t flash_size;
00119     uint32_t start_address;
00120     uint32_t bottom_address;
00121     FlashIAP flash;
00122 
00123     int ret = flash.init();
00124     if (ret != 0) {
00125         return 0;
00126     }
00127 
00128     //Find the start of first sector after text area
00129     bottom_address = align_up(FLASHIAP_ROM_END, flash.get_sector_size(FLASHIAP_ROM_END));
00130     start_address = flash.get_flash_start();
00131     flash_size = flash.get_flash_size();
00132 
00133     ret = flash.deinit();
00134 
00135     static FlashIAPBlockDevice default_bd(bottom_address, start_address + flash_size - bottom_address);
00136 
00137 #else
00138 
00139     static FlashIAPBlockDevice default_bd;
00140 
00141 #endif
00142 
00143     return &default_bd;
00144 
00145 #else
00146 
00147     return NULL;
00148 
00149 #endif
00150 
00151 }
00152 
00153 FileSystem *FileSystem::get_default_instance()
00154 {
00155 #if COMPONENT_SPIF || COMPONENT_QSPIF || COMPONENT_DATAFLASH || COMPONENT_NUSD
00156 
00157     static LittleFileSystem flash("flash", BlockDevice::get_default_instance());
00158     flash.set_as_default();
00159 
00160     return &flash;
00161 
00162 #elif COMPONENT_SD
00163 
00164     static FATFileSystem sdcard("sd", BlockDevice::get_default_instance());
00165     sdcard.set_as_default();
00166 
00167     return &sdcard;
00168 
00169 #elif COMPONENT_FLASHIAP
00170 
00171     static LittleFileSystem flash("flash", BlockDevice::get_default_instance());
00172     flash.set_as_default();
00173 
00174     return &flash;
00175 
00176 #else
00177 
00178     return NULL;
00179 
00180 #endif
00181 
00182 }