84 lines
3.9 KiB
C
84 lines
3.9 KiB
C
/*****************************************************************************\
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* EFSL - Embedded Filesystems Library *
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* ----------------------------------- *
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* *
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* Filename : interface.c *
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* Release : 0.3 - devel *
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* Description : This file defines the general I/O interface functions *
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* that can be performed on hardware. *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; version 2 *
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* of the License. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* As a special exception, if other files instantiate templates or *
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* use macros or inline functions from this file, or you compile this *
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* file and link it with other works to produce a work based on this file, *
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* this file does not by itself cause the resulting work to be covered *
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* by the GNU General Public License. However the source code for this *
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* file must still be made available in accordance with section (3) of *
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* the GNU General Public License. *
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* *
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* This exception does not invalidate any other reasons why a work based *
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* on this file might be covered by the GNU General Public License. *
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* *
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* (c)2006 Lennart Yseboodt *
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* (c)2006 Michael De Nil *
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\*****************************************************************************/
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#include "interface.h"
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esint8 if_init(Interface *iface, void* hwData,
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esint8 (*initInterface)(void*),
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esint8 (*readBuf) (void*, euint32,euint8*),
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esint8 (*writeBuf) (void*, euint32,euint8*),
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esint8 (*ioctl) (void*,euint16,void*))
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{
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esint8 r;
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iface->flags=0;
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iface->sectorCount=0;
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iface->interface_data=hwData;
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#ifdef MULTIPLE_INTERFACE_SUPPORT
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iface->initInterface=initInterface;
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iface->readBuf=readBuf;
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iface->writeBuf=writeBuf;
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iface->ioctl=ioctl;
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r=iface->initInterface(iface->interface_data);
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#else
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r=HWIFUNC_INIT(iface->interface_data);
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#endif
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if(!r){ /* Init OK, try to get some info */
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if(iface->ioctl(iface->interface_data,IOCTL_SECTORCOUNT,(void*)&(iface->sectorCount))){
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iface->sectorCount=0; /* Device doesn't know */
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}
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}
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return(r);
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}
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esint8 if_readBuf(Interface *iface, euint32 address, euint8* buf)
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{
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#ifdef MULTIPLE_INTERFACE_SUPPORT
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return(iface->readBuf(iface->interface_data,address,buf));
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#else
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return(HWIFUNC_READ(iface->interface_data,address,buf));
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#endif
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}
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esint8 if_writeBuf(Interface *iface, euint32 address, euint8* buf)
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{
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#ifdef MULTIPLE_INTERFACE_SUPPORT
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return(iface->writeBuf(iface->interface_data,address,buf));
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#else
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return(HWIFUNC_WRITE(iface->interface_data,address,buf));
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#endif
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}
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