usbmassdevice.h

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//
// usbmassdevice.h
//
// USPi - An USB driver for Raspberry Pi written in C
// Copyright (C) 2014-2018  R. Stange <rsta2@o2online.de>
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//
#ifndef _uspi_usbmassdevice_h
#define _uspi_usbmassdevice_h
 
#include "uspi/usbfunction.h"
#include "uspi/usbendpoint.h"
#include "uspi/types.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define UMSD_BLOCK_SIZE     512
#define UMSD_BLOCK_MASK     (UMSD_BLOCK_SIZE-1)
#define UMSD_BLOCK_SHIFT    9
 
#define UMSD_MAX_OFFSET     0x1FFFFFFFFFFULL        // 2TB
 
typedef struct TUSBBulkOnlyMassStorageDevice
{
    TUSBFunction m_USBFunction;
 
    TUSBEndpoint *m_pEndpointIn;
    TUSBEndpoint *m_pEndpointOut;
 
    unsigned m_nCWBTag;
    unsigned m_nBlockCount;
    unsigned long long m_ullOffset;
}
TUSBBulkOnlyMassStorageDevice;
 
void USBBulkOnlyMassStorageDevice (TUSBBulkOnlyMassStorageDevice *pThis, TUSBFunction *pFunction);
void _USBBulkOnlyMassStorageDevice (TUSBBulkOnlyMassStorageDevice *pThis);
 
boolean USBBulkOnlyMassStorageDeviceConfigure (TUSBFunction *pUSBFunction);
 
int USBBulkOnlyMassStorageDeviceRead (TUSBBulkOnlyMassStorageDevice *pThis, void *pBuffer, unsigned nCount);
int USBBulkOnlyMassStorageDeviceWrite (TUSBBulkOnlyMassStorageDevice *pThis, const void *pBuffer, unsigned nCount);
 
unsigned long long USBBulkOnlyMassStorageDeviceSeek (TUSBBulkOnlyMassStorageDevice *pThis, unsigned long long ullOffset);
 
unsigned USBBulkOnlyMassStorageDeviceGetCapacity (TUSBBulkOnlyMassStorageDevice *pThis);
 
#ifdef __cplusplus
}
#endif
 
#endif