Diff: drivers/storage/MySystemStorage.cpp

Revision:

0:a076a1bbe630

diff -r 000000000000 -r a076a1bbe630 drivers/storage/MySystemStorage.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/drivers/storage/MySystemStorage.cpp	Mon Dec 10 21:58:43 2018 +0000
@@ -0,0 +1,182 @@
+/*
+ * 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
+
+#if COMPONENT_NUSD
+#include "NuSDBlockDevice.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;
+}
+
+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_NUSD
+
+    static NuSDBlockDevice default_bd;
+
+    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
+
+}
+
+FileSystem *FileSystem::get_default_instance()
+{
+#if COMPONENT_SPIF || COMPONENT_QSPIF || COMPONENT_DATAFLASH || COMPONENT_NUSD
+
+    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
+
+}