1/* $NetBSD: sbusvar.h,v 1.26 2008/05/17 18:09:03 macallan Exp $ */ 2 3/*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifndef _SBUS_VAR_H 33#define _SBUS_VAR_H 34 35#if defined(_KERNEL_OPT) && (defined(__sparc__) || defined(__sparc64__)) 36#include "opt_sparc_arch.h" 37#endif 38 39#include <machine/bsd_openprom.h> 40 41struct sbus_softc; 42 43typedef u_int32_t sbus_slot_t; 44typedef u_int32_t sbus_offset_t; 45 46/* 47 * Sbus driver attach arguments. 48 */ 49struct sbus_attach_args { 50 int sa_placeholder; /* for obio attach args sharing */ 51 bus_space_tag_t sa_bustag; 52 bus_dma_tag_t sa_dmatag; 53 char *sa_name; /* PROM node name */ 54 int sa_node; /* PROM handle */ 55 struct openprom_addr *sa_reg; /* Sbus register space for device */ 56 int sa_nreg; /* Number of Sbus register spaces */ 57#define sa_slot sa_reg[0].oa_space 58#define sa_offset sa_reg[0].oa_base 59#define sa_size sa_reg[0].oa_size 60 61 struct openprom_intr *sa_intr; /* Sbus interrupts for device */ 62 int sa_nintr; /* Number of interrupts */ 63#define sa_pri sa_intr[0].oi_pri 64 65 u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */ 66 int sa_npromvaddrs; /* Number of PROM VAs */ 67#define sa_promvaddr sa_promvaddrs[0] 68 int sa_frequency; /* SBus clockrate */ 69}; 70 71/* sbus_attach_internal() is also used from obio.c */ 72void sbus_attach_common(struct sbus_softc *, const char *, int, 73 const char * const *); 74int sbus_print(void *, const char *); 75 76int sbus_setup_attach_args( 77 struct sbus_softc *, 78 bus_space_tag_t, 79 bus_dma_tag_t, 80 int, /*node*/ 81 struct sbus_attach_args *); 82 83void sbus_destroy_attach_args(struct sbus_attach_args *); 84 85#define sbus_bus_map(tag, slot, offset, sz, flags, hp) \ 86 bus_space_map(tag, BUS_ADDR(slot,offset), sz, flags, hp) 87bus_addr_t sbus_bus_addr(bus_space_tag_t, u_int, u_int); 88void sbus_promaddr_to_handle(bus_space_tag_t, u_int, 89 bus_space_handle_t *); 90 91#if notyet 92/* variables per Sbus */ 93struct sbus_softc { 94 device_t sc_dev; /* base device */ 95 bus_space_tag_t sc_bustag; 96 bus_dma_tag_t sc_dmatag; 97 int sc_clockfreq; /* clock frequency (in Hz) */ 98 struct openprom_range *sc_range; 99 int sc_nrange; 100 int sc_burst; /* burst transfer sizes supported */ 101 /* machdep stuff follows here */ 102 int *sc_intr2ipl; /* Interrupt level translation */ 103}; 104#endif 105 106 107/* 108 * PROM-reported DMA burst sizes for the SBus 109 */ 110#define SBUS_BURST_1 0x1 111#define SBUS_BURST_2 0x2 112#define SBUS_BURST_4 0x4 113#define SBUS_BURST_8 0x8 114#define SBUS_BURST_16 0x10 115#define SBUS_BURST_32 0x20 116#define SBUS_BURST_64 0x40 117 118/* We use #defined(SUN4*) here while the ports are in flux */ 119#if defined(SUN4) || defined(SUN4C) || defined(SUN4M) || defined(SUN4D) 120#include <sparc/dev/sbusvar.h> 121#elif defined(SUN4U) 122#include <sparc64/dev/sbusvar.h> 123#endif 124 125#endif /* _SBUS_VAR_H */ 126