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/* $OpenBSD: sbusvar.h,v 1.7 2003/02/17 01:29:21 henric Exp $ */
/* $NetBSD: sbusvar.h,v 1.11 2000/11/01 06:18:45 eeh Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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.
*/
#ifndef _SBUS_VAR_H
#define _SBUS_VAR_H
struct sbus_softc;
/*
* S-bus variables.
*/
struct sbusdev {
struct device *sd_dev; /* backpointer to generic */
struct sbusdev *sd_bchain; /* forward link in bus chain */
void (*sd_reset)(struct device *);
};
/* Device register space description */
struct sbus_reg {
u_int32_t sbr_slot;
u_int32_t sbr_offset;
u_int32_t sbr_size;
};
/* Interrupt information */
struct sbus_intr {
u_int32_t sbi_pri; /* priority (IPL) */
u_int32_t sbi_vec; /* vector (always 0?) */
};
/* Address translation across busses */
struct sbus_range {
u_int32_t cspace; /* Client space */
u_int32_t coffset; /* Client offset */
u_int32_t pspace; /* Parent space */
u_int32_t poffset; /* Parent offset */
u_int32_t size; /* Size in bytes of this range */
};
/*
* Sbus driver attach arguments.
*/
struct sbus_attach_args {
int sa_placeholder; /* for obio attach args sharing */
bus_space_tag_t sa_bustag;
bus_dma_tag_t sa_dmatag;
char *sa_name; /* PROM node name */
int sa_node; /* PROM handle */
struct sbus_reg *sa_reg; /* Sbus register space for device */
int sa_nreg; /* Number of Sbus register spaces */
#define sa_slot sa_reg[0].sbr_slot
#define sa_offset sa_reg[0].sbr_offset
#define sa_size sa_reg[0].sbr_size
struct sbus_intr *sa_intr; /* Sbus interrupts for device */
int sa_nintr; /* Number of interrupts */
#define sa_pri sa_intr[0].sbi_pri
u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */
int sa_npromvaddrs; /* Number of PROM VAs */
#define sa_promvaddr sa_promvaddrs[0]
int sa_frequency; /* SBus clockrate */
};
/* sbus_attach_internal() is also used from obio.c */
void sbus_attach_common(struct sbus_softc *, char *, int,
const char * const *);
int sbus_print(void *, const char *);
void sbus_establish(struct sbusdev *, struct device *);
int sbus_setup_attach_args(
struct sbus_softc *,
bus_space_tag_t,
bus_dma_tag_t,
int, /*node*/
struct sbus_attach_args *);
void sbus_destroy_attach_args(struct sbus_attach_args *);
#define sbus_bus_map(t, slot, offset, sz, flags, unused, hp) \
bus_space_map(t, BUS_ADDR(slot, offset), sz, flags, hp)
#if notyet
/* variables per Sbus */
struct sbus_softc {
struct device sc_dev; /* base device */
bus_space_tag_t sc_bustag;
bus_dma_tag_t sc_dmatag;
int sc_clockfreq; /* clock frequency (in Hz) */
struct sbusdev *sc_sbdev; /* list of all children */
struct sbus_range *sc_range;
int sc_nrange;
int sc_burst; /* burst transfer sizes supported */
/* machdep stuff follows here */
int *sc_intr2ipl; /* Interrupt level translation */
int *sc_intr_compat; /* `intr' property to sbus compat */
};
#endif
/*
* PROM-reported DMA burst sizes for the SBus
*/
#define SBUS_BURST_1 0x1
#define SBUS_BURST_2 0x2
#define SBUS_BURST_4 0x4
#define SBUS_BURST_8 0x8
#define SBUS_BURST_16 0x10
#define SBUS_BURST_32 0x20
#define SBUS_BURST_64 0x40
/* We use #defined(SUN4*) here while the ports are in flux */
#if defined(SUN4) || defined(SUN4C) || defined(SUN4M)
#include <sparc/dev/sbusvar.h>
#elif defined(SUN4U)
#include <sparc64/dev/sbusvar.h>
#endif
#endif /* _SBUS_VAR_H */
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