isavar.h revision 1.37
1 /* $NetBSD: isavar.h,v 1.37 1999/03/19 05:13:18 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1995 Chris G. Demetriou 42 * Copyright (c) 1992 Berkeley Software Design, Inc. 43 * All rights reserved. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed by Berkeley Software 56 * Design, Inc. 57 * 4. The name of Berkeley Software Design must not be used to endorse 58 * or promote products derived from this software without specific 59 * prior written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND 62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 63 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 64 * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE 65 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 66 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 67 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 68 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 69 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 70 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 71 * SUCH DAMAGE. 72 * 73 * BSDI Id: isavar.h,v 1.5 1992/12/01 18:06:00 karels Exp 74 */ 75 76 #ifndef _DEV_ISA_ISAVAR_H_ 77 #define _DEV_ISA_ISAVAR_H_ 78 79 /* 80 * Definitions for ISA autoconfiguration. 81 */ 82 83 #include <sys/queue.h> 84 #include <machine/bus.h> 85 86 /* 87 * Structures and definitions needed by the machine-dependent header. 88 */ 89 struct isabus_attach_args; 90 91 #include <machine/isa_machdep.h> 92 93 /* 94 * ISA bus attach arguments 95 */ 96 struct isabus_attach_args { 97 char *iba_busname; /* XXX should be common */ 98 bus_space_tag_t iba_iot; /* isa i/o space tag */ 99 bus_space_tag_t iba_memt; /* isa mem space tag */ 100 bus_dma_tag_t iba_dmat; /* isa DMA tag */ 101 isa_chipset_tag_t iba_ic; 102 }; 103 104 /* 105 * ISA driver attach arguments 106 */ 107 struct isa_attach_args { 108 bus_space_tag_t ia_iot; /* isa i/o space tag */ 109 bus_space_tag_t ia_memt; /* isa mem space tag */ 110 bus_dma_tag_t ia_dmat; /* DMA tag */ 111 112 isa_chipset_tag_t ia_ic; 113 114 int ia_iobase; /* base i/o address */ 115 int ia_iosize; /* span of ports used */ 116 int ia_irq; /* interrupt request */ 117 int ia_drq; /* DMA request */ 118 int ia_drq2; /* second DMA request */ 119 int ia_maddr; /* physical i/o mem addr */ 120 u_int ia_msize; /* size of i/o memory */ 121 void *ia_aux; /* driver specific */ 122 }; 123 124 #include "locators.h" 125 126 #define IOBASEUNK ISACF_PORT_DEFAULT /* i/o address is unknown */ 127 #define IRQUNK ISACF_IRQ_DEFAULT /* interrupt request line is unknown */ 128 #define DRQUNK ISACF_DRQ_DEFAULT /* DMA request line is unknown */ 129 #define MADDRUNK ISACF_IOMEM_DEFAULT /* shared memory address is unknown */ 130 131 /* 132 * ISA master bus 133 */ 134 struct isa_softc { 135 struct device sc_dev; /* base device */ 136 137 bus_space_tag_t sc_iot; /* isa io space tag */ 138 bus_space_tag_t sc_memt; /* isa mem space tag */ 139 bus_dma_tag_t sc_dmat; /* isa DMA tag */ 140 141 isa_chipset_tag_t sc_ic; 142 }; 143 144 #define cf_iobase cf_loc[ISACF_PORT] 145 #define cf_iosize cf_loc[ISACF_SIZE] 146 #define cf_maddr cf_loc[ISACF_IOMEM] 147 #define cf_msize cf_loc[ISACF_IOSIZ] 148 #define cf_irq cf_loc[ISACF_IRQ] 149 #define cf_drq cf_loc[ISACF_DRQ] 150 #define cf_drq2 cf_loc[ISACF_DRQ2] 151 152 /* 153 * ISA interrupt handler manipulation. 154 * 155 * To establish an ISA interrupt handler, a driver calls isa_intr_establish() 156 * with the interrupt number, type, level, function, and function argument of 157 * the interrupt it wants to handle. Isa_intr_establish() returns an opaque 158 * handle to an event descriptor if it succeeds, and returns NULL on failure. 159 * (XXX: some drivers can't handle this, since the former behaviour was to 160 * invoke panic() on failure). When the system does not accept any of the 161 * interrupt types supported by the driver, the driver should fail the attach. 162 * Interrupt handlers should return 0 for "interrupt not for me", 1 for 163 * "I took care of it", or -1 for "I guess it was mine, but I wasn't 164 * expecting it." 165 * 166 * To remove an interrupt handler, the driver calls isa_intr_disestablish() 167 * with the handle returned by isa_intr_establish() for that handler. 168 */ 169 170 /* ISA interrupt sharing types */ 171 char *isa_intr_typename __P((int type)); 172 173 /* 174 * Some ISA devices (e.g. on a VLB) can perform 32-bit DMA. This 175 * flag is passed to bus_dmamap_create() to indicate that fact. 176 */ 177 #define ISABUS_DMA_32BIT BUS_DMA_BUS1 178 179 #endif /* _DEV_ISA_ISAVAR_H_ */ 180
Indexes created Fri Sep 26 08:10:20 GMT 2025