usrp_common.h

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/* 
 * USRP - Universal Software Radio Peripheral
 *
 * Copyright (C) 2003 Free Software Foundation, Inc.
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*
 * common defines and prototypes for USRP
 *
 * In comments below "TRM" refers to the EZ-USB FX2 Technical Reference Manual
 */

#ifndef _USRPCOMMON_H_
#define _USRPCOMMON_H_

#include "gn3s_regs.h"
#include "fx2regs.h"
#include "syncdelay.h"

/*
 * From TRM page 15-105:
 *
 * Under certain conditions, some read and write access to the FX2
 * registers must be separated by a "synchronization delay".  The
 * delay is necessary only under the following conditions:
 *
 *   - between a write to any register in the 0xE600 - 0xE6FF range 
 *     and a write to one of the registers listed below.
 *
 *   - between a write to one of the registers listed below and a read 
 *     from any register in the 0xE600 - 0xE6FF range.
 *
 *   Registers which require a synchronization delay:
 *
 *      FIFORESET                       FIFOPINPOLAR
 *      INPKTEND                        EPxBCH:L
 *      EPxFIFOPFH:L                    EPxAUTOINLENH:L
 *      EPxFIFOCFG                      EPxGPIFFLGSEL
 *      PINFLAGSAB                      PINFLAGSCD
 *      EPxFIFOIE                       EPxFIFOIRQ
 *      GPIFIE                          GPIFIRQ
 *      UDMACRCH:L                      GPIFADRH:L
 *      GPIFTRIG                        EPxGPIFTRIG
 *      OUTPKTEND                       REVCTL
 *      GPIFTCB3                        GPIFTCB2
 *      GPIFTCB1                        GPIFTCB0
 */

#define TRUE            1
#define FALSE           0


void init_usrp (void);
void init_gpif (void);

#endif /* _USRPCOMMON_H_ */