1 /* $NetBSD: sbusvar.h,v 1.19 2002/09/27 20:41:35 thorpej 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 #include <machine/bsd_openprom.h> 47 48 struct sbus_softc; 49 50 /* 51 * S-bus variables. 52 */ 53 struct sbusdev { 54 struct device *sd_dev; /* backpointer to generic */ 55 struct sbusdev *sd_bchain; /* forward link in bus chain */ 56 void (*sd_reset) __P((struct device *)); 57 }; 58 59 typedef u_int32_t sbus_slot_t; 60 typedef u_int32_t sbus_offset_t; 61 62 /* 63 * Sbus driver attach arguments. 64 */ 65 struct sbus_attach_args { 66 int sa_placeholder; /* for obio attach args sharing */ 67 bus_space_tag_t sa_bustag; 68 bus_dma_tag_t sa_dmatag; 69 char *sa_name; /* PROM node name */ 70 int sa_node; /* PROM handle */ 71 struct openprom_addr *sa_reg; /* Sbus register space for device */ 72 int sa_nreg; /* Number of Sbus register spaces */ 73 #define sa_slot sa_reg[0].oa_space 74 #define sa_offset sa_reg[0].oa_base 75 #define sa_size sa_reg[0].oa_size 76 77 struct openprom_intr *sa_intr; /* Sbus interrupts for device */ 78 int sa_nintr; /* Number of interrupts */ 79 #define sa_pri sa_intr[0].oi_pri 80 81 u_int32_t *sa_promvaddrs;/* PROM-supplied virtual addresses -- 32-bit */ 82 int sa_npromvaddrs; /* Number of PROM VAs */ 83 #define sa_promvaddr sa_promvaddrs[0] 84 int sa_frequency; /* SBus clockrate */ 85 }; 86 87 /* sbus_attach_internal() is also used from obio.c */ 88 void sbus_attach_common __P((struct sbus_softc *, char *, int, 89 const char * const *)); 90 int sbus_print __P((void *, const char *)); 91 92 void sbus_establish __P((struct sbusdev *, struct device *)); 93 94 int sbus_setup_attach_args __P(( 95 struct sbus_softc *, 96 bus_space_tag_t, 97 bus_dma_tag_t, 98 int, /*node*/ 99 struct sbus_attach_args *)); 100 101 void sbus_destroy_attach_args __P((struct sbus_attach_args *)); 102 103 #define sbus_bus_map(tag, slot, offset, sz, flags, hp) \ 104 bus_space_map(tag, BUS_ADDR(slot,offset), sz, flags, hp) 105 bus_addr_t sbus_bus_addr __P((bus_space_tag_t, u_int, u_int)); 106 void sbus_promaddr_to_handle __P((bus_space_tag_t, u_int, 107 bus_space_handle_t *)); 108 109 #if notyet 110 /* variables per Sbus */ 111 struct sbus_softc { 112 struct device sc_dev; /* base device */ 113 bus_space_tag_t sc_bustag; 114 bus_dma_tag_t sc_dmatag; 115 int sc_clockfreq; /* clock frequency (in Hz) */ 116 struct sbusdev *sc_sbdev; /* list of all children */ 117 struct openprom_range *sc_range; 118 int sc_nrange; 119 int sc_burst; /* burst transfer sizes supported */ 120 /* machdep stuff follows here */ 121 int *sc_intr2ipl; /* Interrupt level translation */ 122 }; 123 #endif 124 125 126 /* 127 * PROM-reported DMA burst sizes for the SBus 128 */ 129 #define SBUS_BURST_1 0x1 130 #define SBUS_BURST_2 0x2 131 #define SBUS_BURST_4 0x4 132 #define SBUS_BURST_8 0x8 133 #define SBUS_BURST_16 0x10 134 #define SBUS_BURST_32 0x20 135 #define SBUS_BURST_64 0x40 136 137 /* We use #defined(SUN4*) here while the ports are in flux */ 138 #if defined(SUN4) || defined(SUN4C) || defined(SUN4M) 139 #include <sparc/dev/sbusvar.h> 140 #elif defined(SUN4U) 141 #include <sparc64/dev/sbusvar.h> 142 #endif 143 144 #endif /* _SBUS_VAR_H */ 145