1 1.53 cegger /* $NetBSD: isavar.h,v 1.53 2009/05/12 09:10:15 cegger Exp $ */ 2 1.26 thorpej 3 1.26 thorpej /*- 4 1.39 thorpej * Copyright (c) 1997, 2001 The NetBSD Foundation, Inc. 5 1.26 thorpej * All rights reserved. 6 1.26 thorpej * 7 1.26 thorpej * This code is derived from software contributed to The NetBSD Foundation 8 1.39 thorpej * by Jason R. Thorpe of Wasabi Systems, Inc. 9 1.26 thorpej * 10 1.26 thorpej * Redistribution and use in source and binary forms, with or without 11 1.26 thorpej * modification, are permitted provided that the following conditions 12 1.26 thorpej * are met: 13 1.26 thorpej * 1. Redistributions of source code must retain the above copyright 14 1.26 thorpej * notice, this list of conditions and the following disclaimer. 15 1.26 thorpej * 2. Redistributions in binary form must reproduce the above copyright 16 1.26 thorpej * notice, this list of conditions and the following disclaimer in the 17 1.26 thorpej * documentation and/or other materials provided with the distribution. 18 1.26 thorpej * 19 1.26 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.26 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.26 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.26 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.26 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.26 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.26 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.26 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.26 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.26 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.26 thorpej * POSSIBILITY OF SUCH DAMAGE. 30 1.26 thorpej */ 31 1.11 cgd 32 1.8 mycroft /* 33 1.15 cgd * Copyright (c) 1995 Chris G. Demetriou 34 1.8 mycroft * Copyright (c) 1992 Berkeley Software Design, Inc. 35 1.8 mycroft * All rights reserved. 36 1.7 mycroft * 37 1.8 mycroft * Redistribution and use in source and binary forms, with or without 38 1.8 mycroft * modification, are permitted provided that the following conditions 39 1.8 mycroft * are met: 40 1.8 mycroft * 1. Redistributions of source code must retain the above copyright 41 1.8 mycroft * notice, this list of conditions and the following disclaimer. 42 1.8 mycroft * 2. Redistributions in binary form must reproduce the above copyright 43 1.8 mycroft * notice, this list of conditions and the following disclaimer in the 44 1.8 mycroft * documentation and/or other materials provided with the distribution. 45 1.8 mycroft * 3. All advertising materials mentioning features or use of this software 46 1.8 mycroft * must display the following acknowledgement: 47 1.8 mycroft * This product includes software developed by Berkeley Software 48 1.8 mycroft * Design, Inc. 49 1.8 mycroft * 4. The name of Berkeley Software Design must not be used to endorse 50 1.8 mycroft * or promote products derived from this software without specific 51 1.8 mycroft * prior written permission. 52 1.8 mycroft * 53 1.8 mycroft * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND 54 1.8 mycroft * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 1.8 mycroft * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 1.8 mycroft * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE 57 1.8 mycroft * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 1.8 mycroft * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 1.8 mycroft * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 1.8 mycroft * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 1.8 mycroft * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 1.8 mycroft * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 1.8 mycroft * SUCH DAMAGE. 64 1.8 mycroft * 65 1.46 perry * BSDI Id: isavar.h,v 1.5 1992/12/01 18:06:00 karels Exp 66 1.7 mycroft */ 67 1.7 mycroft 68 1.19 cgd #ifndef _DEV_ISA_ISAVAR_H_ 69 1.19 cgd #define _DEV_ISA_ISAVAR_H_ 70 1.19 cgd 71 1.7 mycroft /* 72 1.15 cgd * Definitions for ISA autoconfiguration. 73 1.15 cgd */ 74 1.15 cgd 75 1.15 cgd #include <sys/queue.h> 76 1.49 ad #include <sys/bus.h> 77 1.18 cgd 78 1.46 perry /* 79 1.21 cgd * Structures and definitions needed by the machine-dependent header. 80 1.21 cgd */ 81 1.21 cgd struct isabus_attach_args; 82 1.21 cgd 83 1.37 cgd #include <machine/isa_machdep.h> 84 1.21 cgd 85 1.18 cgd /* 86 1.18 cgd * ISA bus attach arguments 87 1.18 cgd */ 88 1.18 cgd struct isabus_attach_args { 89 1.47 christos const char *_iba_busname; /* XXX placeholder */ 90 1.24 thorpej bus_space_tag_t iba_iot; /* isa i/o space tag */ 91 1.24 thorpej bus_space_tag_t iba_memt; /* isa mem space tag */ 92 1.26 thorpej bus_dma_tag_t iba_dmat; /* isa DMA tag */ 93 1.21 cgd isa_chipset_tag_t iba_ic; 94 1.18 cgd }; 95 1.15 cgd 96 1.15 cgd /* 97 1.39 thorpej * ISA bus resources. 98 1.39 thorpej */ 99 1.39 thorpej 100 1.39 thorpej struct isa_io { 101 1.39 thorpej int ir_addr; 102 1.39 thorpej int ir_size; 103 1.39 thorpej }; 104 1.39 thorpej 105 1.39 thorpej struct isa_iomem { 106 1.39 thorpej int ir_addr; 107 1.39 thorpej int ir_size; 108 1.39 thorpej }; 109 1.39 thorpej 110 1.39 thorpej struct isa_irq { 111 1.39 thorpej int ir_irq; 112 1.39 thorpej }; 113 1.39 thorpej 114 1.39 thorpej struct isa_drq { 115 1.39 thorpej int ir_drq; 116 1.39 thorpej }; 117 1.39 thorpej 118 1.39 thorpej struct isa_pnpname { 119 1.39 thorpej struct isa_pnpname *ipn_next; 120 1.39 thorpej char *ipn_name; 121 1.39 thorpej }; 122 1.39 thorpej 123 1.39 thorpej /* 124 1.39 thorpej * Machine-dependent code provides a list of these to describe 125 1.39 thorpej * devices on the ISA bus which should be attached via direct 126 1.39 thorpej * configuration. 127 1.39 thorpej * 128 1.39 thorpej * All of this information is dynamically allocated, so that 129 1.39 thorpej * the ISA bus driver may free all of this information if the 130 1.39 thorpej * bus does not support dynamic attach/detach of devices (e.g. 131 1.39 thorpej * on a docking station). 132 1.39 thorpej * 133 1.39 thorpej * Some info on the "ik_key" field: This is a unique number for 134 1.39 thorpej * each knowndev node. If, when we need to re-enumerate the 135 1.39 thorpej * knowndevs, we discover that a node with key N is in the old 136 1.39 thorpej * list but not in the new, the device has disappeared. Similarly, 137 1.39 thorpej * if a node with key M is in the new list but not in the old, 138 1.39 thorpej * the device is new. Note that the knowndevs list must be 139 1.39 thorpej * sorted in ascending "key" order. 140 1.39 thorpej */ 141 1.39 thorpej struct isa_knowndev { 142 1.39 thorpej TAILQ_ENTRY(isa_knowndev) ik_list; 143 1.39 thorpej uintptr_t ik_key; 144 1.53 cegger device_t ik_claimed; 145 1.39 thorpej 146 1.39 thorpej /* 147 1.39 thorpej * The rest of these fields correspond to isa_attach_args 148 1.39 thorpej * fields. 149 1.39 thorpej */ 150 1.39 thorpej char *ik_pnpname; 151 1.39 thorpej struct isa_pnpname *ik_pnpcompatnames; 152 1.39 thorpej 153 1.39 thorpej struct isa_io *ik_io; 154 1.39 thorpej int ik_nio; 155 1.39 thorpej 156 1.39 thorpej struct isa_iomem *ik_iomem; 157 1.39 thorpej int ik_niomem; 158 1.39 thorpej 159 1.39 thorpej struct isa_irq *ik_irq; 160 1.39 thorpej int ik_nirq; 161 1.39 thorpej 162 1.39 thorpej struct isa_drq *ik_drq; 163 1.39 thorpej int ik_ndrq; 164 1.39 thorpej }; 165 1.39 thorpej 166 1.39 thorpej /* 167 1.7 mycroft * ISA driver attach arguments 168 1.7 mycroft */ 169 1.7 mycroft struct isa_attach_args { 170 1.24 thorpej bus_space_tag_t ia_iot; /* isa i/o space tag */ 171 1.24 thorpej bus_space_tag_t ia_memt; /* isa mem space tag */ 172 1.26 thorpej bus_dma_tag_t ia_dmat; /* DMA tag */ 173 1.24 thorpej 174 1.21 cgd isa_chipset_tag_t ia_ic; 175 1.19 cgd 176 1.39 thorpej /* 177 1.39 thorpej * PNP (or other) names to with which we can match a device 178 1.39 thorpej * driver to a device that machine-dependent code tells us 179 1.39 thorpej * is there (i.e. support for direct-configuration of ISA 180 1.39 thorpej * devices). 181 1.39 thorpej */ 182 1.39 thorpej char *ia_pnpname; 183 1.39 thorpej struct isa_pnpname *ia_pnpcompatnames; 184 1.39 thorpej 185 1.39 thorpej struct isa_io *ia_io; /* I/O resources */ 186 1.39 thorpej int ia_nio; 187 1.39 thorpej 188 1.39 thorpej struct isa_iomem *ia_iomem; /* memory resources */ 189 1.39 thorpej int ia_niomem; 190 1.39 thorpej 191 1.39 thorpej struct isa_irq *ia_irq; /* IRQ resources */ 192 1.39 thorpej int ia_nirq; 193 1.39 thorpej 194 1.39 thorpej struct isa_drq *ia_drq; /* DRQ resources */ 195 1.39 thorpej int ia_ndrq; 196 1.39 thorpej 197 1.7 mycroft void *ia_aux; /* driver specific */ 198 1.7 mycroft }; 199 1.7 mycroft 200 1.39 thorpej /* 201 1.39 thorpej * Test to determine if a given call to an ISA device probe routine 202 1.39 thorpej * is actually an attempt to do direct configuration. 203 1.39 thorpej */ 204 1.39 thorpej #define ISA_DIRECT_CONFIG(ia) \ 205 1.39 thorpej ((ia)->ia_pnpname != NULL || (ia)->ia_pnpcompatnames != NULL) 206 1.39 thorpej 207 1.7 mycroft /* 208 1.15 cgd * ISA master bus 209 1.7 mycroft */ 210 1.7 mycroft struct isa_softc { 211 1.50 cube device_t sc_dev; /* base device */ 212 1.19 cgd 213 1.24 thorpej bus_space_tag_t sc_iot; /* isa io space tag */ 214 1.24 thorpej bus_space_tag_t sc_memt; /* isa mem space tag */ 215 1.26 thorpej bus_dma_tag_t sc_dmat; /* isa DMA tag */ 216 1.24 thorpej 217 1.21 cgd isa_chipset_tag_t sc_ic; 218 1.39 thorpej 219 1.39 thorpej TAILQ_HEAD(, isa_knowndev) sc_knowndevs; 220 1.39 thorpej int sc_dynamicdevs; 221 1.7 mycroft }; 222 1.26 thorpej 223 1.44 drochner /* 224 1.44 drochner * These must be in sync with the ISACF_XXX_DEFAULT definitions 225 1.44 drochner * in "locators.h" (generated from files.isa). 226 1.44 drochner * (not including "locators.h" here to avoid dependency) 227 1.44 drochner */ 228 1.44 drochner #define ISA_UNKNOWN_PORT (-1) 229 1.44 drochner #define ISA_UNKNOWN_IOMEM (-1) 230 1.44 drochner #define ISA_UNKNOWN_IOSIZ (0) 231 1.44 drochner #define ISA_UNKNOWN_IRQ (-1) 232 1.44 drochner #define ISA_UNKNOWN_DRQ (-1) 233 1.44 drochner #define ISA_UNKNOWN_DRQ2 (-1) 234 1.7 mycroft 235 1.42 drochner int isabusprint(void *, const char *); 236 1.42 drochner 237 1.7 mycroft /* 238 1.15 cgd * ISA interrupt handler manipulation. 239 1.46 perry * 240 1.15 cgd * To establish an ISA interrupt handler, a driver calls isa_intr_establish() 241 1.15 cgd * with the interrupt number, type, level, function, and function argument of 242 1.15 cgd * the interrupt it wants to handle. Isa_intr_establish() returns an opaque 243 1.35 leo * handle to an event descriptor if it succeeds, and returns NULL on failure. 244 1.35 leo * (XXX: some drivers can't handle this, since the former behaviour was to 245 1.35 leo * invoke panic() on failure). When the system does not accept any of the 246 1.35 leo * interrupt types supported by the driver, the driver should fail the attach. 247 1.35 leo * Interrupt handlers should return 0 for "interrupt not for me", 1 for 248 1.35 leo * "I took care of it", or -1 for "I guess it was mine, but I wasn't 249 1.35 leo * expecting it." 250 1.15 cgd * 251 1.46 perry * To remove an interrupt handler, the driver calls isa_intr_disestablish() 252 1.15 cgd * with the handle returned by isa_intr_establish() for that handler. 253 1.38 cgd * 254 1.38 cgd * The event counter (struct evcnt) associated with an interrupt line 255 1.38 cgd * (to be used as 'parent' for an ISA device's interrupt handler's evcnt) 256 1.38 cgd * can be obtained with isa_intr_evcnt(). 257 1.15 cgd */ 258 1.15 cgd 259 1.15 cgd /* ISA interrupt sharing types */ 260 1.47 christos const char *isa_intr_typename(int); 261 1.26 thorpej 262 1.26 thorpej /* 263 1.26 thorpej * Some ISA devices (e.g. on a VLB) can perform 32-bit DMA. This 264 1.26 thorpej * flag is passed to bus_dmamap_create() to indicate that fact. 265 1.26 thorpej */ 266 1.26 thorpej #define ISABUS_DMA_32BIT BUS_DMA_BUS1 267 1.40 fvdl 268 1.40 fvdl /* 269 1.40 fvdl * This flag indicates that the DMA channel should not yet be reserved, 270 1.40 fvdl * even if BUS_DMA_ALLOCNOW is specified. 271 1.40 fvdl */ 272 1.40 fvdl #define ISABUS_DMA_DEFERCHAN BUS_DMA_BUS2 273 1.19 cgd 274 1.51 ad void isa_set_slotcount(int); 275 1.51 ad int isa_get_slotcount(void); 276 1.51 ad 277 1.19 cgd #endif /* _DEV_ISA_ISAVAR_H_ */ 278