eisa_machdep.c revision 1.10.22.4
1 /* $NetBSD: eisa_machdep.c,v 1.10.22.4 2001/01/07 22:12:40 sommerfeld Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 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) 1996 Christopher G. Demetriou. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Christopher G. Demetriou 54 * for the NetBSD Project. 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 63 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 64 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 65 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 66 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 67 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 /* 71 * Machine-specific functions for EISA autoconfiguration. 72 */ 73 74 #include "ioapic.h" 75 76 #include <sys/types.h> 77 #include <sys/param.h> 78 #include <sys/time.h> 79 #include <sys/systm.h> 80 #include <sys/errno.h> 81 #include <sys/device.h> 82 #include <sys/extent.h> 83 84 #define _I386_BUS_DMA_PRIVATE 85 #include <machine/bus.h> 86 87 #include <i386/isa/icu.h> 88 #include <dev/isa/isareg.h> 89 #include <dev/isa/isavar.h> 90 #include <dev/eisa/eisavar.h> 91 92 #if NIOAPIC > 0 93 #include <machine/i82093var.h> 94 #include <machine/mpbiosvar.h> 95 #endif 96 97 /* 98 * EISA doesn't have any special needs; just use the generic versions 99 * of these funcions. 100 */ 101 struct i386_bus_dma_tag eisa_bus_dma_tag = { 102 0, /* _bounce_thresh */ 103 _bus_dmamap_create, 104 _bus_dmamap_destroy, 105 _bus_dmamap_load, 106 _bus_dmamap_load_mbuf, 107 _bus_dmamap_load_uio, 108 _bus_dmamap_load_raw, 109 _bus_dmamap_unload, 110 NULL, /* _dmamap_sync */ 111 _bus_dmamem_alloc, 112 _bus_dmamem_free, 113 _bus_dmamem_map, 114 _bus_dmamem_unmap, 115 _bus_dmamem_mmap, 116 }; 117 118 void 119 eisa_attach_hook(parent, self, eba) 120 struct device *parent, *self; 121 struct eisabus_attach_args *eba; 122 { 123 extern int eisa_has_been_seen; 124 125 /* 126 * Notify others that might need to know that the EISA bus 127 * has now been attached. 128 */ 129 if (eisa_has_been_seen) 130 panic("eisaattach: EISA bus already seen!"); 131 eisa_has_been_seen = 1; 132 } 133 134 int 135 eisa_maxslots(ec) 136 eisa_chipset_tag_t ec; 137 { 138 139 /* 140 * Always try 16 slots. 141 */ 142 return (16); 143 } 144 145 int 146 eisa_intr_map(ec, irq, ihp) 147 eisa_chipset_tag_t ec; 148 u_int irq; 149 eisa_intr_handle_t *ihp; 150 { 151 #if NIOAPIC > 0 152 struct mp_intr_map *mip; 153 #endif 154 155 if (irq >= ICU_LEN) { 156 printf("eisa_intr_map: bad IRQ %d\n", irq); 157 *ihp = -1; 158 return 1; 159 } 160 if (irq == 2) { 161 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); 162 irq = 9; 163 } 164 165 #if NIOAPIC > 0 166 if (mp_busses != NULL) { 167 int bus = mp_eisa_bus; 168 169 if (bus != -1) { 170 for (mip = mp_busses[bus].mb_intrs; mip != NULL; 171 mip=mip->next) { 172 if (mip->bus_pin == irq) { 173 *ihp = mip->ioapic_ih | irq; 174 return 0; 175 } 176 } 177 } 178 179 bus = mp_isa_bus; 180 181 if (bus != -1) { 182 for (mip = mp_busses[bus].mb_intrs; mip != NULL; 183 mip=mip->next) { 184 if (mip->bus_pin == irq) { 185 *ihp = mip->ioapic_ih | irq; 186 return 0; 187 } 188 } 189 } 190 191 printf("eisa_intr_map: no MP mapping found\n"); 192 } 193 #endif 194 195 196 *ihp = irq; 197 return 0; 198 } 199 200 const char * 201 eisa_intr_string(ec, ih) 202 eisa_chipset_tag_t ec; 203 eisa_intr_handle_t ih; 204 { 205 static char irqstr[8]; /* 4 + 2 + NULL + sanity */ 206 207 if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2) 208 panic("eisa_intr_string: bogus handle 0x%x\n", ih); 209 210 #if NIOAPIC > 0 211 if (ih & APIC_INT_VIA_APIC) 212 sprintf(irqstr, "apic %d int %d (irq %d)", 213 APIC_IRQ_APIC(ih), 214 APIC_IRQ_PIN(ih), 215 ih&0xff); 216 else 217 sprintf(irqstr, "irq %d", ih&0xff); 218 #else 219 sprintf(irqstr, "irq %d", ih); 220 #endif 221 return (irqstr); 222 223 } 224 225 const struct evcnt * 226 eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih) 227 { 228 229 /* XXX for now, no evcnt parent reported */ 230 return NULL; 231 } 232 233 void * 234 eisa_intr_establish(ec, ih, type, level, func, arg) 235 eisa_chipset_tag_t ec; 236 eisa_intr_handle_t ih; 237 int type, level, (*func) __P((void *)); 238 void *arg; 239 { 240 if (ih != -1) { 241 #if NIOAPIC > 0 242 if (ih & APIC_INT_VIA_APIC) { 243 return apic_intr_establish(ih, type, level, 244 func, arg); 245 } 246 #endif 247 } 248 249 if (ih == 0 || ih >= ICU_LEN || ih == 2) 250 panic("eisa_intr_establish: bogus handle 0x%x\n", ih); 251 252 return isa_intr_establish(NULL, ih, type, level, func, arg); 253 } 254 255 void 256 eisa_intr_disestablish(ec, cookie) 257 eisa_chipset_tag_t ec; 258 void *cookie; 259 { 260 261 return isa_intr_disestablish(NULL, cookie); 262 } 263 264 int 265 eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp) 266 bus_space_tag_t t; 267 bus_size_t size, align; 268 bus_addr_t boundary; 269 int cacheable; 270 bus_addr_t *addrp; 271 bus_space_handle_t *bahp; 272 { 273 extern struct extent *iomem_ex; 274 275 /* 276 * Allocate physical address space after the ISA hole. 277 */ 278 return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align, 279 boundary, cacheable, addrp, bahp); 280 } 281 282 void 283 eisa_mem_free(t, bah, size) 284 bus_space_tag_t t; 285 bus_space_handle_t bah; 286 bus_size_t size; 287 { 288 289 bus_space_free(t, bah, size); 290 } 291 292 int 293 eisa_conf_read_mem(ec, slot, func, entry, ecm) 294 eisa_chipset_tag_t ec; 295 int slot, func, entry; 296 struct eisa_cfg_mem *ecm; 297 { 298 299 /* XXX XXX XXX */ 300 return (ENOENT); 301 } 302 303 int 304 eisa_conf_read_irq(ec, slot, func, entry, eci) 305 eisa_chipset_tag_t ec; 306 int slot, func, entry; 307 struct eisa_cfg_irq *eci; 308 { 309 310 /* XXX XXX XXX */ 311 return (ENOENT); 312 } 313 314 int 315 eisa_conf_read_dma(ec, slot, func, entry, ecd) 316 eisa_chipset_tag_t ec; 317 int slot, func, entry; 318 struct eisa_cfg_dma *ecd; 319 { 320 321 /* XXX XXX XXX */ 322 return (ENOENT); 323 } 324 325 int 326 eisa_conf_read_io(ec, slot, func, entry, ecio) 327 eisa_chipset_tag_t ec; 328 int slot, func, entry; 329 struct eisa_cfg_io *ecio; 330 { 331 332 /* XXX XXX XXX */ 333 return (ENOENT); 334 } 335
Indexes created Sat Oct 25 16:10:12 GMT 2025