95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
/* $NetBSD: zsvar.h,v 1.10 2000/11/20 19:35:29 scw Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1996 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Non-exported definitons common to the different attachment
|
|
* types for the SCC on the Motorola MVME series of computers.
|
|
*/
|
|
|
|
/*
|
|
* The MVME-147 provides a 5 MHz clock to the SCC chips.
|
|
*/
|
|
#define PCLK_147 5000000 /* PCLK pin input clock rate */
|
|
|
|
/*
|
|
* The MVME-162 provides a 10 MHz clock to the SCC chips.
|
|
*/
|
|
#define PCLK_162 10000000 /* PCLK pin input clock rate */
|
|
|
|
/*
|
|
* SCC should interrupt host at level 4.
|
|
*/
|
|
#define ZSHARD_PRI 4
|
|
|
|
/*
|
|
* No delay needed when writing SCC registers.
|
|
*/
|
|
#define ZS_DELAY()
|
|
|
|
/*
|
|
* XXX Make cnprobe a little easier.
|
|
*/
|
|
#define NZSC 2
|
|
|
|
/*
|
|
* The layout of this is hardware-dependent (padding, order).
|
|
*/
|
|
struct zschan {
|
|
volatile u_char *zc_csr; /* ctrl,status, and indirect access */
|
|
volatile u_char *zc_data; /* data */
|
|
};
|
|
|
|
struct zsdevice {
|
|
/* Yes, they are backwards. */
|
|
struct zschan zs_chan_b;
|
|
struct zschan zs_chan_a;
|
|
};
|
|
|
|
/* Globals exported from zs.c */
|
|
extern u_char zs_init_reg[];
|
|
|
|
/* Functions exported to ASIC-specific drivers. */
|
|
void zs_config __P((struct zsc_softc *, struct zsdevice *, int, int));
|
|
void zs_cnconfig __P((int, int, struct zsdevice *, int));
|
|
#ifdef MVME147
|
|
int zshard_shared __P((void *));
|
|
#endif
|
|
#if defined(MVME162) || defined(MVME172)
|
|
int zshard_unshared(void *);
|
|
#endif
|