138 lines
4.4 KiB
C
138 lines
4.4 KiB
C
/* $NetBSD: sbusvar.h,v 1.26 2008/05/17 18:09:03 macallan Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SBUS_VAR_H
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#define _SBUS_VAR_H
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#if defined(_KERNEL_OPT) && (defined(__sparc__) || defined(__sparc64__))
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#include "opt_sparc_arch.h"
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#endif
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#include <machine/bsd_openprom.h>
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struct sbus_softc;
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/*
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* S-bus variables.
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*/
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struct sbusdev {
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device_t sd_dev; /* backpointer to generic */
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struct sbusdev *sd_bchain; /* forward link in bus chain */
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void (*sd_reset)(device_t);
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};
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typedef u_int32_t sbus_slot_t;
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typedef u_int32_t sbus_offset_t;
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/*
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* Sbus driver attach arguments.
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*/
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struct sbus_attach_args {
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int sa_placeholder; /* for obio attach args sharing */
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bus_space_tag_t sa_bustag;
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bus_dma_tag_t sa_dmatag;
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char *sa_name; /* PROM node name */
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int sa_node; /* PROM handle */
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struct openprom_addr *sa_reg; /* Sbus register space for device */
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int sa_nreg; /* Number of Sbus register spaces */
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#define sa_slot sa_reg[0].oa_space
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#define sa_offset sa_reg[0].oa_base
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#define sa_size sa_reg[0].oa_size
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struct openprom_intr *sa_intr; /* Sbus interrupts for device */
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int sa_nintr; /* Number of interrupts */
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#define sa_pri sa_intr[0].oi_pri
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u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */
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int sa_npromvaddrs; /* Number of PROM VAs */
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#define sa_promvaddr sa_promvaddrs[0]
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int sa_frequency; /* SBus clockrate */
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};
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/* sbus_attach_internal() is also used from obio.c */
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void sbus_attach_common(struct sbus_softc *, const char *, int,
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const char * const *);
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int sbus_print(void *, const char *);
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void sbus_establish(struct sbusdev *, device_t);
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int sbus_setup_attach_args(
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struct sbus_softc *,
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bus_space_tag_t,
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bus_dma_tag_t,
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int, /*node*/
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struct sbus_attach_args *);
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void sbus_destroy_attach_args(struct sbus_attach_args *);
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#define sbus_bus_map(tag, slot, offset, sz, flags, hp) \
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bus_space_map(tag, BUS_ADDR(slot,offset), sz, flags, hp)
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bus_addr_t sbus_bus_addr(bus_space_tag_t, u_int, u_int);
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void sbus_promaddr_to_handle(bus_space_tag_t, u_int,
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bus_space_handle_t *);
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#if notyet
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/* variables per Sbus */
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struct sbus_softc {
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device_t sc_dev; /* base device */
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bus_space_tag_t sc_bustag;
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bus_dma_tag_t sc_dmatag;
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int sc_clockfreq; /* clock frequency (in Hz) */
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struct sbusdev *sc_sbdev; /* list of all children */
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struct openprom_range *sc_range;
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int sc_nrange;
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int sc_burst; /* burst transfer sizes supported */
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/* machdep stuff follows here */
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int *sc_intr2ipl; /* Interrupt level translation */
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};
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#endif
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/*
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* PROM-reported DMA burst sizes for the SBus
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*/
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#define SBUS_BURST_1 0x1
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#define SBUS_BURST_2 0x2
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#define SBUS_BURST_4 0x4
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#define SBUS_BURST_8 0x8
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#define SBUS_BURST_16 0x10
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#define SBUS_BURST_32 0x20
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#define SBUS_BURST_64 0x40
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/* We use #defined(SUN4*) here while the ports are in flux */
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#if defined(SUN4) || defined(SUN4C) || defined(SUN4M) || defined(SUN4D)
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#include <sparc/dev/sbusvar.h>
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#elif defined(SUN4U)
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#include <sparc64/dev/sbusvar.h>
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#endif
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#endif /* _SBUS_VAR_H */
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