sbusvar.h revision 1.13
1 /* $NetBSD: sbusvar.h,v 1.13 2002/02/03 05:53:28 darrenr 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 58 /* Device register space description */ 59 struct sbus_reg { 60 u_int32_t sbr_slot; 61 u_int32_t sbr_offset; 62 u_int32_t sbr_size; 63 }; 64 65 /* Interrupt information */ 66 struct sbus_intr { 67 u_int32_t sbi_pri; /* priority (IPL) */ 68 u_int32_t sbi_vec; /* vector (always 0?) */ 69 }; 70 71 /* Address translation accross busses */ 72 struct sbus_range { 73 u_int32_t cspace; /* Client space */ 74 u_int32_t coffset; /* Client offset */ 75 u_int32_t pspace; /* Parent space */ 76 u_int32_t poffset; /* Parent offset */ 77 u_int32_t size; /* Size in bytes of this range */ 78 }; 79 80 /* 81 * Sbus driver attach arguments. 82 */ 83 struct sbus_attach_args { 84 int sa_placeholder; /* for obio attach args sharing */ 85 bus_space_tag_t sa_bustag; 86 bus_dma_tag_t sa_dmatag; 87 char *sa_name; /* PROM node name */ 88 int sa_node; /* PROM handle */ 89 struct sbus_reg *sa_reg; /* Sbus register space for device */ 90 int sa_nreg; /* Number of Sbus register spaces */ 91 #define sa_slot sa_reg[0].sbr_slot 92 #define sa_offset sa_reg[0].sbr_offset 93 #define sa_size sa_reg[0].sbr_size 94 95 struct sbus_intr *sa_intr; /* Sbus interrupts for device */ 96 int sa_nintr; /* Number of interrupts */ 97 #define sa_pri sa_intr[0].sbi_pri 98 99 u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */ 100 int sa_npromvaddrs; /* Number of PROM VAs */ 101 #define sa_promvaddr sa_promvaddrs[0] 102 int sa_frequency; /* SBus clockrate */ 103 }; 104 105 /* sbus_attach_internal() is also used from obio.c */ 106 void sbus_attach_common __P((struct sbus_softc *, char *, int, 107 const char * const *)); 108 int sbus_print __P((void *, const char *)); 109 110 void sbus_establish __P((struct sbusdev *, struct device *)); 111 112 int sbus_setup_attach_args __P(( 113 struct sbus_softc *, 114 bus_space_tag_t, 115 bus_dma_tag_t, 116 int, /*node*/ 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 bus_addr_t sbus_bus_addr __P((bus_space_tag_t, u_int, u_int)); 124 125 #if notyet 126 /* variables per Sbus */ 127 struct sbus_softc { 128 struct device sc_dev; /* base device */ 129 bus_space_tag_t sc_bustag; 130 bus_dma_tag_t sc_dmatag; 131 int sc_clockfreq; /* clock frequency (in Hz) */ 132 struct sbusdev *sc_sbdev; /* list of all children */ 133 struct sbus_range *sc_range; 134 int sc_nrange; 135 int sc_burst; /* burst transfer sizes supported */ 136 /* machdep stuff follows here */ 137 int *sc_intr2ipl; /* Interrupt level translation */ 138 int *sc_intr_compat; /* `intr' property to sbus compat */ 139 }; 140 #endif 141 142 143 /* 144 * PROM-reported DMA burst sizes for the SBus 145 */ 146 #define SBUS_BURST_1 0x1 147 #define SBUS_BURST_2 0x2 148 #define SBUS_BURST_4 0x4 149 #define SBUS_BURST_8 0x8 150 #define SBUS_BURST_16 0x10 151 #define SBUS_BURST_32 0x20 152 #define SBUS_BURST_64 0x40 153 154 /* We use #defined(SUN4*) here while the ports are in flux */ 155 #if defined(SUN4) || defined(SUN4C) || defined(SUN4M) 156 #include <sparc/dev/sbusvar.h> 157 #elif defined(SUN4U) 158 #include <sparc64/dev/sbusvar.h> 159 #endif 160 161 #endif /* _SBUS_VAR_H */ 162
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