eisa_machdep.c revision 1.17
1 /* $NetBSD: eisa_machdep.c,v 1.17 2002/11/22 15:23:37 fvdl 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 <sys/cdefs.h> 75 __KERNEL_RCSID(0, "$NetBSD: eisa_machdep.c,v 1.17 2002/11/22 15:23:37 fvdl Exp $"); 76 77 #include "ioapic.h" 78 79 #include <sys/types.h> 80 #include <sys/param.h> 81 #include <sys/time.h> 82 #include <sys/systm.h> 83 #include <sys/errno.h> 84 #include <sys/device.h> 85 #include <sys/extent.h> 86 87 #define _I386_BUS_DMA_PRIVATE 88 #include <machine/bus.h> 89 90 #include <dev/isa/isareg.h> 91 #include <dev/isa/isavar.h> 92 #include <dev/eisa/eisavar.h> 93 94 #if NIOAPIC > 0 95 #include <machine/i82093var.h> 96 #include <machine/mpbiosvar.h> 97 #endif 98 99 /* 100 * EISA doesn't have any special needs; just use the generic versions 101 * of these funcions. 102 */ 103 struct i386_bus_dma_tag eisa_bus_dma_tag = { 104 0, /* _bounce_thresh */ 105 _bus_dmamap_create, 106 _bus_dmamap_destroy, 107 _bus_dmamap_load, 108 _bus_dmamap_load_mbuf, 109 _bus_dmamap_load_uio, 110 _bus_dmamap_load_raw, 111 _bus_dmamap_unload, 112 NULL, /* _dmamap_sync */ 113 _bus_dmamem_alloc, 114 _bus_dmamem_free, 115 _bus_dmamem_map, 116 _bus_dmamem_unmap, 117 _bus_dmamem_mmap, 118 }; 119 120 void 121 eisa_attach_hook(parent, self, eba) 122 struct device *parent, *self; 123 struct eisabus_attach_args *eba; 124 { 125 extern int eisa_has_been_seen; 126 127 /* 128 * Notify others that might need to know that the EISA bus 129 * has now been attached. 130 */ 131 if (eisa_has_been_seen) 132 panic("eisaattach: EISA bus already seen!"); 133 eisa_has_been_seen = 1; 134 } 135 136 int 137 eisa_maxslots(ec) 138 eisa_chipset_tag_t ec; 139 { 140 141 /* 142 * Always try 16 slots. 143 */ 144 return (16); 145 } 146 147 int 148 eisa_intr_map(ec, irq, ihp) 149 eisa_chipset_tag_t ec; 150 u_int irq; 151 eisa_intr_handle_t *ihp; 152 { 153 if (irq >= NUM_LEGACY_IRQS) { 154 printf("eisa_intr_map: bad IRQ %d\n", irq); 155 *ihp = -1; 156 return 1; 157 } 158 if (irq == 2) { 159 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); 160 irq = 9; 161 } 162 163 #if NIOAPIC > 0 164 165 if (mp_busses != NULL) { 166 if (intr_find_mpmapping(mp_eisa_bus, irq, ihp) == 0 || 167 intr_find_mpmapping(mp_isa_bus, irq, ihp) == 0) { 168 *ihp |= irq; 169 return 0; 170 } else 171 printf("eisa_intr_map: no MP mapping found\n"); 172 } 173 printf("eisa_intr_map: no MP mapping found\n"); 174 #endif 175 176 *ihp = irq; 177 return 0; 178 } 179 180 const char * 181 eisa_intr_string(ec, ih) 182 eisa_chipset_tag_t ec; 183 eisa_intr_handle_t ih; 184 { 185 static char irqstr[8]; /* 4 + 2 + NULL + sanity */ 186 187 if (ih == 0 || (ih & 0xff) >= NUM_LEGACY_IRQS || ih == 2) 188 panic("eisa_intr_string: bogus handle 0x%x", ih); 189 190 #if NIOAPIC > 0 191 if (ih & APIC_INT_VIA_APIC) 192 sprintf(irqstr, "apic %d int %d (irq %d)", 193 APIC_IRQ_APIC(ih), 194 APIC_IRQ_PIN(ih), 195 ih&0xff); 196 else 197 sprintf(irqstr, "irq %d", ih&0xff); 198 #else 199 sprintf(irqstr, "irq %d", ih); 200 #endif 201 return (irqstr); 202 203 } 204 205 const struct evcnt * 206 eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih) 207 { 208 209 /* XXX for now, no evcnt parent reported */ 210 return NULL; 211 } 212 213 void * 214 eisa_intr_establish(ec, ih, type, level, func, arg) 215 eisa_chipset_tag_t ec; 216 eisa_intr_handle_t ih; 217 int type, level, (*func) __P((void *)); 218 void *arg; 219 { 220 int pin, irq; 221 struct pic *pic; 222 223 pic = &i8259_pic; 224 pin = irq = ih; 225 226 #if NIOAPIC > 0 227 if (ih & APIC_INT_VIA_APIC) { 228 pic = (struct pic *)ioapic_find(APIC_IRQ_APIC(ih)); 229 if (pic == NULL) { 230 printf("eisa_intr_establish: bad ioapic %d\n", 231 APIC_IRQ_APIC(ih)); 232 return NULL; 233 } 234 pin = APIC_IRQ_PIN(ih); 235 irq = APIC_IRQ_LEGACY_IRQ(ih); 236 if (irq < 0 || irq >= NUM_LEGACY_IRQS) 237 irq = -1; 238 } 239 #endif 240 241 return intr_establish(irq, pic, pin, type, level, func, arg); 242 } 243 244 void 245 eisa_intr_disestablish(ec, cookie) 246 eisa_chipset_tag_t ec; 247 void *cookie; 248 { 249 250 intr_disestablish(cookie); 251 } 252 253 int 254 eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp) 255 bus_space_tag_t t; 256 bus_size_t size, align; 257 bus_addr_t boundary; 258 int cacheable; 259 bus_addr_t *addrp; 260 bus_space_handle_t *bahp; 261 { 262 extern struct extent *iomem_ex; 263 264 /* 265 * Allocate physical address space after the ISA hole. 266 */ 267 return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align, 268 boundary, cacheable, addrp, bahp); 269 } 270 271 void 272 eisa_mem_free(t, bah, size) 273 bus_space_tag_t t; 274 bus_space_handle_t bah; 275 bus_size_t size; 276 { 277 278 bus_space_free(t, bah, size); 279 } 280 281 int 282 eisa_conf_read_mem(ec, slot, func, entry, ecm) 283 eisa_chipset_tag_t ec; 284 int slot, func, entry; 285 struct eisa_cfg_mem *ecm; 286 { 287 288 /* XXX XXX XXX */ 289 return (ENOENT); 290 } 291 292 int 293 eisa_conf_read_irq(ec, slot, func, entry, eci) 294 eisa_chipset_tag_t ec; 295 int slot, func, entry; 296 struct eisa_cfg_irq *eci; 297 { 298 299 /* XXX XXX XXX */ 300 return (ENOENT); 301 } 302 303 int 304 eisa_conf_read_dma(ec, slot, func, entry, ecd) 305 eisa_chipset_tag_t ec; 306 int slot, func, entry; 307 struct eisa_cfg_dma *ecd; 308 { 309 310 /* XXX XXX XXX */ 311 return (ENOENT); 312 } 313 314 int 315 eisa_conf_read_io(ec, slot, func, entry, ecio) 316 eisa_chipset_tag_t ec; 317 int slot, func, entry; 318 struct eisa_cfg_io *ecio; 319 { 320 321 /* XXX XXX XXX */ 322 return (ENOENT); 323 } 324
Indexes created Sun Oct 26 17:10:13 GMT 2025