sbusvar.h revision 1.14
1 /* $NetBSD: sbusvar.h,v 1.14 2002/03/11 16:00:57 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 #if defined(_KERNEL_OPT) && (defined(__sparc__) || defined(__sparc64__)) 43 #include "opt_sparc_arch.h" 44 #endif 45 46 struct sbus_softc; 47 48 /* 49 * S-bus variables. 50 */ 51 struct sbusdev { 52 struct device *sd_dev; /* backpointer to generic */ 53 struct sbusdev *sd_bchain; /* forward link in bus chain */ 54 void (*sd_reset) __P((struct device *)); 55 }; 56 57 typedef u_int32_t sbus_slot_t; 58 typedef u_int32_t sbus_offset_t; 59 60 /* Device register space description */ 61 struct sbus_reg { 62 u_int32_t sbr_slot; 63 u_int32_t sbr_offset; 64 u_int32_t sbr_size; 65 }; 66 67 /* Interrupt information */ 68 struct sbus_intr { 69 u_int32_t sbi_pri; /* priority (IPL) */ 70 u_int32_t sbi_vec; /* vector (always 0?) */ 71 }; 72 73 /* Address translation accross busses */ 74 struct sbus_range { 75 u_int32_t cspace; /* Client space */ 76 u_int32_t coffset; /* Client offset */ 77 u_int32_t pspace; /* Parent space */ 78 u_int32_t poffset; /* Parent offset */ 79 u_int32_t size; /* Size in bytes of this range */ 80 }; 81 82 /* 83 * Sbus driver attach arguments. 84 */ 85 struct sbus_attach_args { 86 int sa_placeholder; /* for obio attach args sharing */ 87 bus_space_tag_t sa_bustag; 88 bus_dma_tag_t sa_dmatag; 89 char *sa_name; /* PROM node name */ 90 int sa_node; /* PROM handle */ 91 struct sbus_reg *sa_reg; /* Sbus register space for device */ 92 int sa_nreg; /* Number of Sbus register spaces */ 93 #define sa_slot sa_reg[0].sbr_slot 94 #define sa_offset sa_reg[0].sbr_offset 95 #define sa_size sa_reg[0].sbr_size 96 97 struct sbus_intr *sa_intr; /* Sbus interrupts for device */ 98 int sa_nintr; /* Number of interrupts */ 99 #define sa_pri sa_intr[0].sbi_pri 100 101 u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */ 102 int sa_npromvaddrs; /* Number of PROM VAs */ 103 #define sa_promvaddr sa_promvaddrs[0] 104 int sa_frequency; /* SBus clockrate */ 105 }; 106 107 /* sbus_attach_internal() is also used from obio.c */ 108 void sbus_attach_common __P((struct sbus_softc *, char *, int, 109 const char * const *)); 110 int sbus_print __P((void *, const char *)); 111 112 void sbus_establish __P((struct sbusdev *, struct device *)); 113 114 int sbus_setup_attach_args __P(( 115 struct sbus_softc *, 116 bus_space_tag_t, 117 bus_dma_tag_t, 118 int, /*node*/ 119 struct sbus_attach_args *)); 120 121 void sbus_destroy_attach_args __P((struct sbus_attach_args *)); 122 123 #if defined(SUN4U) 124 /* XXX - until sun4u catches up */ 125 #define sbus_bus_map(t, bt, a, s, f, hp) \ 126 bus_space_map2(t, bt, a, s, f, 0, hp) 127 #else 128 #define sbus_bus_map(tag, slot, offset, sz, flags, hp) \ 129 bus_space_map(tag, BUS_ADDR(slot,offset), sz, flags, hp) 130 #endif 131 bus_addr_t sbus_bus_addr __P((bus_space_tag_t, u_int, u_int)); 132 133 #if notyet 134 /* variables per Sbus */ 135 struct sbus_softc { 136 struct device sc_dev; /* base device */ 137 bus_space_tag_t sc_bustag; 138 bus_dma_tag_t sc_dmatag; 139 int sc_clockfreq; /* clock frequency (in Hz) */ 140 struct sbusdev *sc_sbdev; /* list of all children */ 141 struct sbus_range *sc_range; 142 int sc_nrange; 143 int sc_burst; /* burst transfer sizes supported */ 144 /* machdep stuff follows here */ 145 int *sc_intr2ipl; /* Interrupt level translation */ 146 int *sc_intr_compat; /* `intr' property to sbus compat */ 147 }; 148 #endif 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 /* We use #defined(SUN4*) here while the ports are in flux */ 163 #if defined(SUN4) || defined(SUN4C) || defined(SUN4M) 164 #include <sparc/dev/sbusvar.h> 165 #elif defined(SUN4U) 166 #include <sparc64/dev/sbusvar.h> 167 #endif 168 169 #endif /* _SBUS_VAR_H */ 170
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