sbusvar.h revision 1.6
1 /* $NetBSD: sbusvar.h,v 1.6 1998/09/05 22:14:25 eeh 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _SBUS_VAR_H 40 #define _SBUS_VAR_H 41 42 struct sbus_softc; 43 44 /* 45 * S-bus variables. 46 */ 47 struct sbusdev { 48 struct device *sd_dev; /* backpointer to generic */ 49 struct sbusdev *sd_bchain; /* forward link in bus chain */ 50 void (*sd_reset) __P((struct device *)); 51 }; 52 53 54 /* Device register space description */ 55 struct sbus_reg { 56 u_int32_t sbr_slot; 57 u_int32_t sbr_offset; 58 u_int32_t sbr_size; 59 }; 60 61 /* Interrupt information */ 62 struct sbus_intr { 63 u_int32_t sbi_pri; /* priority (IPL) */ 64 u_int32_t sbi_vec; /* vector (always 0?) */ 65 }; 66 67 /* Address translation accross busses */ 68 struct sbus_range { 69 u_int32_t cspace; /* Client space */ 70 u_int32_t coffset; /* Client offset */ 71 u_int32_t pspace; /* Parent space */ 72 u_int32_t poffset; /* Parent offset */ 73 u_int32_t size; /* Size in bytes of this range */ 74 }; 75 76 /* 77 * Sbus driver attach arguments. 78 */ 79 struct sbus_attach_args { 80 int sa_placeholder; /* for obio attach args sharing */ 81 bus_space_tag_t sa_bustag; 82 bus_dma_tag_t sa_dmatag; 83 char *sa_name; /* PROM node name */ 84 int sa_node; /* PROM handle */ 85 struct sbus_reg *sa_reg; /* Sbus register space for device */ 86 int sa_nreg; /* Number of Sbus register spaces */ 87 #define sa_slot sa_reg[0].sbr_slot 88 #define sa_offset sa_reg[0].sbr_offset 89 #define sa_size sa_reg[0].sbr_size 90 91 struct sbus_intr *sa_intr; /* Sbus interrupts for device */ 92 int sa_nintr; /* Number of interrupts */ 93 #define sa_pri sa_intr[0].sbi_pri 94 95 int *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */ 96 int sa_npromvaddrs; /* Number of PROM VAs */ 97 #define sa_promvaddr sa_promvaddrs[0] 98 99 struct bootpath *sa_bp; /* used for locating boot device */ 100 }; 101 102 /* sbus_attach_internal() is also used from obio.c */ 103 void sbus_attach_common __P((struct sbus_softc *, char *, int, 104 struct bootpath *, const char * const *)); 105 int sbus_print __P((void *, const char *)); 106 107 void sbus_establish __P((struct sbusdev *, struct device *)); 108 109 int sbus_setup_attach_args __P(( 110 struct sbus_softc *, 111 bus_space_tag_t, 112 bus_dma_tag_t, 113 int, /*node*/ 114 struct bootpath *, 115 struct sbus_attach_args *)); 116 117 void sbus_destroy_attach_args __P((struct sbus_attach_args *)); 118 119 #define sbus_bus_map(t, bt, a, s, f, v, hp) \ 120 bus_space_map2(t, bt, a, s, f, v, hp) 121 122 #if notyet 123 /* variables per Sbus */ 124 struct sbus_softc { 125 struct device sc_dev; /* base device */ 126 bus_space_tag_t sc_bustag; 127 bus_dma_tag_t sc_dmatag; 128 int sc_clockfreq; /* clock frequency (in Hz) */ 129 struct sbusdev *sc_sbdev; /* list of all children */ 130 struct sbus_range *sc_range; 131 int sc_nrange; 132 int sc_burst; /* burst transfer sizes supported */ 133 /* machdep stuff follows here */ 134 int *sc_intr2ipl; /* Interrupt level translation */ 135 int *sc_intr_compat; /* `intr' property to sbus compat */ 136 }; 137 #endif 138 139 140 /* 141 * PROM-reported DMA burst sizes for the SBus 142 */ 143 #define SBUS_BURST_1 0x1 144 #define SBUS_BURST_2 0x2 145 #define SBUS_BURST_4 0x4 146 #define SBUS_BURST_8 0x8 147 #define SBUS_BURST_16 0x10 148 #define SBUS_BURST_32 0x20 149 #define SBUS_BURST_64 0x40 150 151 /* We use #defined(SUN4*) here while the ports are in flux */ 152 #if defined(SUN4) || defined(SUN4C) || defined(SUN4M) 153 #include <sparc/dev/sbusvar.h> 154 #elif defined(SUN4U) 155 #include <sparc64/dev/sbusvar.h> 156 #endif 157 158 #endif /* _SBUS_VAR_H */ 159
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