Norimasa Okamoto / USBLocalFileSystem

Emulation of LocalFileSystem with virtual COM.

Dependencies:   USBDevice

Dependents:   KL46Z-lpc81isp lpcterm2 

#include "USBLocalFileSystem.h"

int main() {
    USBLocalFileSystem* usb_local = new USBLocalFileSystem(); // RamDisk(64KB)

    while(1) {
        usb_local->lock(true);
        usb_local->remount();
        char filename[32];
        if (usb_local->find(filename, sizeof(filename), "*.TXT")) {
            FILE* fp = fopen(filename, "r");
            if (fp) {
                int c;
                while((c = fgetc(fp)) != EOF) {
                    usb_local->putc(c);
                }
                fclose(fp);
            }
        }    
        usb_local->lock(false);

        wait_ms(1000*5);
    }
}



Sample application：

Import programKL46Z-lpc81isp

ISP example program.

Last commit 04 May 2014 by Norimasa Okamoto

Import programlpcterm2

semihost server example program

Last commit 22 Jun 2014 by Norimasa Okamoto

src/Storage.h

Committer:
va009039
Date:
2014-06-21
Revision:
6:528036abfb02
Parent:
4:8f6857784854

File content as of revision 6:528036abfb02:

#pragma once
#include "mbed.h"
#include "FATFileSystem.h"
#include "USBMSD.h"
#include "USBMSD2.h"
#include "StorageInterface.h"
#include "mystring.h"

class LocalStorage : public FATFileSystem {
public:
    LocalStorage(StorageInterface* storage, const char* name = "local");
    virtual int disk_read(uint8_t * buffer, uint64_t sector) {
        return _storage->storage_read(buffer, sector);
    }
    virtual int disk_write(const uint8_t * buffer, uint64_t sector) {
        return _storage->storage_write(buffer, sector);
    }
    virtual uint64_t disk_sectors() {
        return _storage->storage_sectors();
    }
    static bool find(char* buf, size_t size, const char* dirname, const char* pat);

private:
    StorageInterface* _storage;
    const char* _name;
};

class USBStorage : public USBMSD {
public:
    USBStorage(StorageInterface* storage): _storage(storage) {
        connect();
    }
    virtual int disk_read(uint8_t * data, uint64_t block) {
        return _storage->storage_read(data, block);
    }
    virtual int disk_write(const uint8_t * data, uint64_t block) {
        return _storage->storage_write(data, block);
    }
    virtual int disk_initialize() { return 0; }
    virtual uint64_t disk_sectors() {
        return _storage->storage_sectors();
    }
    virtual int disk_status() { return 0; }
    virtual uint64_t disk_size() {
        return _storage->storage_size();
    }

private:
    StorageInterface* _storage;
};

class USBStorage2 : public USBMSD2 {
public:
    USBStorage2(StorageInterface* storage): _storage(storage) {
        init();
        connect();
    }
    void init() {
        block_flag = false;
        report_block_count = 0;
        report_initialize_count = 0;
        report_read_count = 0;
        report_write_count = 0;
        report_sectors_count = 0;
        report_status_count = 0;
        report_size_count = 0;
    }
    virtual int disk_read(uint8_t * data, uint64_t block) {
        if (block_flag) {
            report_block_count++;
            return 1;
        }
        report_read_count++;
        return _storage->storage_read(data, block);
    }
    virtual int disk_write(const uint8_t * data, uint64_t block) {
        if (block_flag) {
            report_block_count++;
            return 1;
        }
        report_write_count++;
        return _storage->storage_write(data, block);
    }
    virtual int disk_initialize() {
        report_initialize_count++;
        return 0;
    }
    virtual uint64_t disk_sectors() {
        report_sectors_count++;
        return _storage->storage_sectors();
    }
    virtual int disk_status() {
        report_status_count++;
        return 0;
    }
    virtual uint64_t disk_size() {
        report_size_count++;
        return _storage->storage_size();
    }

    bool block(bool flag) {
        if (block_flag != flag) {
            block_flag = flag;
            return true;
        }
        return false;
    }
    __IO bool block_flag;
    __IO int report_block_count;
    __IO int report_initialize_count;
    __IO int report_read_count;
    __IO int report_write_count;
    __IO int report_sectors_count;
    __IO int report_status_count;
    __IO int report_size_count;

private:
    StorageInterface* _storage;
};