424619ca1a
Unlike the other Sun machines, UltraSPARCs can have consoles run on different chips than zs, so we need to support them. So, here we go: Add a new PROM console driver with a major number and everything. This is the default driver if nothing else attaches. It does not use the keyboard driver since the PROM translates keystrokes itself. (Unfortunately it also swallows L1-A). Have the keyboard driver take over the console when it attaches on a serial port. When a serial port detects a keyboard and attaches the keyboard driver, it needs to provide a set of consdev vectors. They keyboard driver will use those to send I/O to the keyboard and mouse.
92 lines
3.9 KiB
C
92 lines
3.9 KiB
C
/* $NetBSD: z8530var.h,v 1.2 2000/05/19 05:26:18 eeh Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)zsvar.h 8.1 (Berkeley) 6/11/93
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*/
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#include <machine/bus.h>
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#include <dev/ic/z8530sc.h>
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struct zsc_softc {
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struct device zsc_dev; /* base device */
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bus_space_tag_t zsc_bustag; /* bus space/dma tags */
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bus_dma_tag_t zsc_dmatag;
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struct zs_chanstate *zsc_cs[2]; /* channel A and B soft state */
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/* Machine-dependent part follows... */
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int zsc_promunit; /* PROM's view of zs devices */
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int zsc_node; /* PROM node, if any */
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struct evcnt zsc_intrcnt; /* count interrupts */
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struct zs_chanstate zsc_cs_store[2];
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};
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/*
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* Functions to read and write individual registers in a channel.
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* The ZS chip requires a 1.6 uSec. recovery time between accesses.
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* On the SparcStation the recovery time is handled in hardware.
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* On the older Sun4 machine it isn't, and software must do it.
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*
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* However, it *is* a problem on some Sun4m's (i.e. the SS20) (XXX: why?).
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* Thus we leave in the delay (done in the functions below).
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* XXX: (ABB) Think about this more.
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*
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* The functions below could be macros instead if we are concerned
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* about the function call overhead where ZS_DELAY does nothing.
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*/
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u_char zs_read_reg __P((struct zs_chanstate *cs, u_char reg));
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u_char zs_read_csr __P((struct zs_chanstate *cs));
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u_char zs_read_data __P((struct zs_chanstate *cs));
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void zs_write_reg __P((struct zs_chanstate *cs, u_char reg, u_char val));
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void zs_write_csr __P((struct zs_chanstate *cs, u_char val));
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void zs_write_data __P((struct zs_chanstate *cs, u_char val));
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/* The sparc has splzs() in psl.h */
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/* We want to call it "zs" instead of "zsc" (sigh). */
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#ifndef ZSCCF_CHANNEL
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#define ZSCCF_CHANNEL 0
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#define ZSCCF_CHANNEL_DEFAULT -1
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#endif
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