sbusvar.h revision 1.2
1 /* $NetBSD: sbusvar.h,v 1.2 1998/07/29 18:30:20 pk 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 /* We use #defined(SUN4*) here while the ports are in flux */ 43 #if defined(SUN4C) || defined(SUN4M) 44 struct sbus_softc; 45 46 /* 47 * S-bus variables. 48 */ 49 struct sbusdev { 50 struct device *sd_dev; /* backpointer to generic */ 51 struct sbusdev *sd_bchain; /* forward link in bus chain */ 52 void (*sd_reset) __P((struct device *)); 53 }; 54 55 56 /* Device register space description */ 57 struct sbus_reg { 58 u_int32_t sbr_slot; 59 u_int32_t sbr_offset; 60 u_int32_t sbr_size; 61 }; 62 63 /* Interrupt information */ 64 struct sbus_intr { 65 u_int32_t sbi_pri; /* priority (IPL) */ 66 u_int32_t sbi_vec; /* vector (always 0?) */ 67 }; 68 69 /* Address translation accross busses */ 70 struct sbus_range { 71 u_int32_t cspace; /* Client space */ 72 u_int32_t coffset; /* Client offset */ 73 u_int32_t pspace; /* Parent space */ 74 u_int32_t poffset; /* Parent offset */ 75 u_int32_t size; /* Size in bytes of this range */ 76 }; 77 78 /* 79 * Sbus driver attach arguments. 80 */ 81 struct sbus_attach_args { 82 int sa_placeholder; /* for obio attach args sharing */ 83 bus_space_tag_t sa_bustag; 84 bus_dma_tag_t sa_dmatag; 85 char *sa_name; /* PROM node name */ 86 int sa_node; /* PROM handle */ 87 struct sbus_reg *sa_reg; /* Sbus register space for device */ 88 int sa_nreg; /* Number of Sbus register spaces */ 89 #define sa_slot sa_reg[0].sbr_slot 90 #define sa_offset sa_reg[0].sbr_offset 91 #define sa_size sa_reg[0].sbr_size 92 93 struct sbus_intr *sa_intr; /* Sbus interrupts for device */ 94 int sa_nintr; /* Number of interrupts */ 95 #define sa_pri sa_intr[0].sbi_pri 96 97 void **sa_promvaddrs;/* PROM-supplied virtual addresses */ 98 int sa_npromvaddrs; /* Number of PROM VAs */ 99 #define sa_promvaddr sa_promvaddrs[0] 100 101 struct bootpath *sa_bp; /* used for locating boot device */ 102 }; 103 104 /* sbus_attach() is also used from obio.c */ 105 void sbus_attach __P((struct sbus_softc *, char *, int, struct bootpath *, 106 const char * const *)); 107 int sbus_print __P((void *, const char *)); 108 109 void sbus_establish __P((struct sbusdev *, struct device *)); 110 111 int sbus_setup_attach_args __P(( 112 struct sbus_softc *, 113 bus_space_tag_t, 114 bus_dma_tag_t, 115 int, /*node*/ 116 struct bootpath *, 117 struct sbus_attach_args *)); 118 119 void sbus_destroy_attach_args __P((struct sbus_attach_args *)); 120 121 #define sbus_bus_map(t, bt, a, s, f, v, hp) \ 122 bus_space_map2(t, bt, a, s, f, v, hp) 123 124 #if notyet 125 /* variables per Sbus */ 126 struct sbus_softc { 127 struct device sc_dev; /* base device */ 128 bus_space_tag_t sc_bustag; 129 bus_dma_tag_t sc_dmatag; 130 int sc_clockfreq; /* clock frequency (in Hz) */ 131 struct sbusdev *sc_sbdev; /* list of all children */ 132 struct sbus_range *sc_range; 133 int sc_nrange; 134 int sc_burst; /* burst transfer sizes supported */ 135 int *sc_intr2ipl; /* Interrupt level translation */ 136 int *sc_intr_compat; /* `intr' property to sbus compat */ 137 /* machdep stuff follows here */ 138 }; 139 #endif 140 141 #include <sparc/dev/sbusvar.h> 142 143 #elif defined(SUN4U) 144 145 #include <sparc64/dev/sbusvar.h> 146 147 #endif 148 149 150 151 /* 152 * PROM-reported DMA burst sizes for the SBus 153 */ 154 #define SBUS_BURST_1 0x1 155 #define SBUS_BURST_2 0x2 156 #define SBUS_BURST_4 0x4 157 #define SBUS_BURST_8 0x8 158 #define SBUS_BURST_16 0x10 159 #define SBUS_BURST_32 0x20 160 #define SBUS_BURST_64 0x40 161 162 #endif /* _SBUS_VAR_H */ 163
Indexes created Sun Sep 28 16:09:52 GMT 2025