mbed-os/features/storage/system_storage/SystemStorage.cpp

173 lines
3.8 KiB
C++

/*
* Copyright (c) 2018 ARM Limited. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
* 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 "BlockDevice.h"
#include "FileSystem.h"
#include "FATFileSystem.h"
#include "LittleFileSystem.h"
#if COMPONENT_SPIF
#include "SPIFBlockDevice.h"
#endif
#if COMPONENT_QSPIF
#include "QSPIFBlockDevice.h"
#endif
#if COMPONENT_DATAFLASH
#include "DataFlashBlockDevice.h"
#endif
#if COMPONENT_SD
#include "SDBlockDevice.h"
#endif
#if COMPONENT_FLASHIAP
#include "FlashIAPBlockDevice.h"
#endif
using namespace mbed;
// Align a value to a specified size.
// Parameters :
// val - [IN] Value.
// size - [IN] Size.
// Return : Aligned value.
static inline uint32_t align_up(uint32_t val, uint32_t size)
{
return (((val - 1) / size) + 1) * size;
}
MBED_WEAK BlockDevice *BlockDevice::get_default_instance()
{
#if COMPONENT_SPIF
static SPIFBlockDevice default_bd(
MBED_CONF_SPIF_DRIVER_SPI_MOSI,
MBED_CONF_SPIF_DRIVER_SPI_MISO,
MBED_CONF_SPIF_DRIVER_SPI_CLK,
MBED_CONF_SPIF_DRIVER_SPI_CS,
MBED_CONF_SPIF_DRIVER_SPI_FREQ
);
return &default_bd;
#elif COMPONENT_QSPIF
static QSPIFBlockDevice default_bd(
MBED_CONF_QSPIF_QSPI_IO0,
MBED_CONF_QSPIF_QSPI_IO1,
MBED_CONF_QSPIF_QSPI_IO2,
MBED_CONF_QSPIF_QSPI_IO3,
MBED_CONF_QSPIF_QSPI_SCK,
MBED_CONF_QSPIF_QSPI_CSN,
MBED_CONF_QSPIF_QSPI_POLARITY_MODE,
MBED_CONF_QSPIF_QSPI_FREQ
);
return &default_bd;
#elif COMPONENT_DATAFLASH
static DataFlashBlockDevice default_bd(
MBED_CONF_DATAFLASH_SPI_MOSI,
MBED_CONF_DATAFLASH_SPI_MISO,
MBED_CONF_DATAFLASH_SPI_CLK,
MBED_CONF_DATAFLASH_SPI_CS
);
return &default_bd;
#elif COMPONENT_SD
static SDBlockDevice default_bd(
MBED_CONF_SD_SPI_MOSI,
MBED_CONF_SD_SPI_MISO,
MBED_CONF_SD_SPI_CLK,
MBED_CONF_SD_SPI_CS
);
return &default_bd;
#elif COMPONENT_FLASHIAP
#if (MBED_CONF_FLASHIAP_BLOCK_DEVICE_SIZE == 0) && (MBED_CONF_FLASHIAP_BLOCK_DEVICE_BASE_ADDRESS == 0xFFFFFFFF)
size_t flash_size;
uint32_t start_address;
uint32_t bottom_address;
FlashIAP flash;
int ret = flash.init();
if (ret != 0) {
return 0;
}
//Find the start of first sector after text area
bottom_address = align_up(FLASHIAP_ROM_END, flash.get_sector_size(FLASHIAP_ROM_END));
start_address = flash.get_flash_start();
flash_size = flash.get_flash_size();
ret = flash.deinit();
static FlashIAPBlockDevice default_bd(bottom_address, start_address + flash_size - bottom_address);
#else
static FlashIAPBlockDevice default_bd;
#endif
return &default_bd;
#else
return NULL;
#endif
}
MBED_WEAK FileSystem *FileSystem::get_default_instance()
{
#if COMPONENT_SPIF || COMPONENT_QSPIF || COMPONENT_DATAFLASH
static LittleFileSystem flash("flash", BlockDevice::get_default_instance());
flash.set_as_default();
return &flash;
#elif COMPONENT_SD
static FATFileSystem sdcard("sd", BlockDevice::get_default_instance());
sdcard.set_as_default();
return &sdcard;
#elif COMPONENT_FLASHIAP
static LittleFileSystem flash("flash", BlockDevice::get_default_instance());
flash.set_as_default();
return &flash;
#else
return NULL;
#endif
}