87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
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// Copyright (C) 2009 Ubixum, Inc.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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/*! \file
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* Functions and macros for working with endpoints.
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* */
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#ifndef EPUTILS_H
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#define EPUTILS_H
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#include "fx2types.h"
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/**
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* NOTE you can't use these unless you define SYNCDELAY
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* as a macro or function. The reason is that SYNCDELAY
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* needs to be longer or shorter depending on your IFCONFIG
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* settings.
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* See delay.h
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*
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* Example:
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* \code
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* #define SYNCDELAY SYNCDELAY4 // SYNCDELAY4 from delay.h
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* \endcode
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*
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*
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**/
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/**
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* Stalls EP0.
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**/
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#define STALLEP0() EP0CS |= bmEPSTALL
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/**
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* \brief Reset the toggle on an endpoint.
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* To use this, the endpoint needs bit 8 to be IN=1,OUT=0
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**/
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#define RESETTOGGLE(ep) TOGCTL = (ep&0x0F) + ((ep&0x80)>>3); TOGCTL |= bmRESETTOGGLE
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/**
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* RESETFIFO should not use 0x80|epnum for IN endpoints
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* Only use 0x02, 0x04, 0x06, 0x06 for ep value
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**/
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#define RESETFIFO(ep) {FIFORESET=0x80; SYNCDELAY;\
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FIFORESET=ep; SYNCDELAY;\
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FIFORESET=0x00; SYNCDELAY;}
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/**
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* Quickly reset all endpoint FIFOS.
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**/
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#define RESETFIFOS() {FIFORESET=0x80; SYNCDELAY;\
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FIFORESET=0x02; SYNCDELAY;\
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FIFORESET=0x04; SYNCDELAY;\
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FIFORESET=0x06; SYNCDELAY;\
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FIFORESET=0x08; SYNCDELAY;\
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FIFORESET=0x00; SYNCDELAY;}
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/**
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* Continually read available bytes from endpoint0 into dst, wait
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* until more bytes are available, and loop until len bytes have
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* been read.
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**/
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void readep0(BYTE * dst, WORD len);
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/**
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* Write bytes from src to ep0, allowing host to transfer data
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* between 64 byte blocks.
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**/
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void writeep0(BYTE * src, WORD len);
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#endif
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