eisa_machdep.c revision 1.13.2.2
1 /* $NetBSD: eisa_machdep.c,v 1.13.2.2 2002/10/10 18:33:16 jdolecek 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 1.13.2.2 2002/10/10 18:33:16 jdolecek 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 <i386/isa/icu.h> 91 #include <dev/isa/isareg.h> 92 #include <dev/isa/isavar.h> 93 #include <dev/eisa/eisavar.h> 94 95 #if NIOAPIC > 0 96 #include <machine/i82093var.h> 97 #include <machine/mpbiosvar.h> 98 #endif 99 100 /* 101 * EISA doesn't have any special needs; just use the generic versions 102 * of these funcions. 103 */ 104 struct i386_bus_dma_tag eisa_bus_dma_tag = { 105 0, /* _bounce_thresh */ 106 _bus_dmamap_create, 107 _bus_dmamap_destroy, 108 _bus_dmamap_load, 109 _bus_dmamap_load_mbuf, 110 _bus_dmamap_load_uio, 111 _bus_dmamap_load_raw, 112 _bus_dmamap_unload, 113 NULL, /* _dmamap_sync */ 114 _bus_dmamem_alloc, 115 _bus_dmamem_free, 116 _bus_dmamem_map, 117 _bus_dmamem_unmap, 118 _bus_dmamem_mmap, 119 }; 120 121 void 122 eisa_attach_hook(parent, self, eba) 123 struct device *parent, *self; 124 struct eisabus_attach_args *eba; 125 { 126 extern int eisa_has_been_seen; 127 128 /* 129 * Notify others that might need to know that the EISA bus 130 * has now been attached. 131 */ 132 if (eisa_has_been_seen) 133 panic("eisaattach: EISA bus already seen!"); 134 eisa_has_been_seen = 1; 135 } 136 137 int 138 eisa_maxslots(ec) 139 eisa_chipset_tag_t ec; 140 { 141 142 /* 143 * Always try 16 slots. 144 */ 145 return (16); 146 } 147 148 int 149 eisa_intr_map(ec, irq, ihp) 150 eisa_chipset_tag_t ec; 151 u_int irq; 152 eisa_intr_handle_t *ihp; 153 { 154 #if NIOAPIC > 0 155 struct mp_intr_map *mip; 156 #endif 157 158 if (irq >= ICU_LEN) { 159 printf("eisa_intr_map: bad IRQ %d\n", irq); 160 *ihp = -1; 161 return 1; 162 } 163 if (irq == 2) { 164 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); 165 irq = 9; 166 } 167 168 #if NIOAPIC > 0 169 if (mp_busses != NULL) { 170 int bus = mp_eisa_bus; 171 172 if (bus != -1) { 173 for (mip = mp_busses[bus].mb_intrs; mip != NULL; 174 mip=mip->next) { 175 if (mip->bus_pin == irq) { 176 *ihp = mip->ioapic_ih | irq; 177 return 0; 178 } 179 } 180 } 181 182 bus = mp_isa_bus; 183 184 if (bus != -1) { 185 for (mip = mp_busses[bus].mb_intrs; mip != NULL; 186 mip=mip->next) { 187 if (mip->bus_pin == irq) { 188 *ihp = mip->ioapic_ih | irq; 189 return 0; 190 } 191 } 192 } 193 194 printf("eisa_intr_map: no MP mapping found\n"); 195 } 196 #endif 197 198 199 *ihp = irq; 200 return 0; 201 } 202 203 const char * 204 eisa_intr_string(ec, ih) 205 eisa_chipset_tag_t ec; 206 eisa_intr_handle_t ih; 207 { 208 static char irqstr[8]; /* 4 + 2 + NULL + sanity */ 209 210 if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2) 211 panic("eisa_intr_string: bogus handle 0x%x", ih); 212 213 #if NIOAPIC > 0 214 if (ih & APIC_INT_VIA_APIC) 215 sprintf(irqstr, "apic %d int %d (irq %d)", 216 APIC_IRQ_APIC(ih), 217 APIC_IRQ_PIN(ih), 218 ih&0xff); 219 else 220 sprintf(irqstr, "irq %d", ih&0xff); 221 #else 222 sprintf(irqstr, "irq %d", ih); 223 #endif 224 return (irqstr); 225 226 } 227 228 const struct evcnt * 229 eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih) 230 { 231 232 /* XXX for now, no evcnt parent reported */ 233 return NULL; 234 } 235 236 void * 237 eisa_intr_establish(ec, ih, type, level, func, arg) 238 eisa_chipset_tag_t ec; 239 eisa_intr_handle_t ih; 240 int type, level, (*func) __P((void *)); 241 void *arg; 242 { 243 if (ih != -1) { 244 #if NIOAPIC > 0 245 if (ih & APIC_INT_VIA_APIC) { 246 return apic_intr_establish(ih, type, level, 247 func, arg); 248 } 249 #endif 250 } 251 252 if (ih == 0 || ih >= ICU_LEN || ih == 2) 253 panic("eisa_intr_establish: bogus handle 0x%x", ih); 254 255 return isa_intr_establish(NULL, ih, type, level, func, arg); 256 } 257 258 void 259 eisa_intr_disestablish(ec, cookie) 260 eisa_chipset_tag_t ec; 261 void *cookie; 262 { 263 264 isa_intr_disestablish(NULL, cookie); 265 } 266 267 int 268 eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp) 269 bus_space_tag_t t; 270 bus_size_t size, align; 271 bus_addr_t boundary; 272 int cacheable; 273 bus_addr_t *addrp; 274 bus_space_handle_t *bahp; 275 { 276 extern struct extent *iomem_ex; 277 278 /* 279 * Allocate physical address space after the ISA hole. 280 */ 281 return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align, 282 boundary, cacheable, addrp, bahp); 283 } 284 285 void 286 eisa_mem_free(t, bah, size) 287 bus_space_tag_t t; 288 bus_space_handle_t bah; 289 bus_size_t size; 290 { 291 292 bus_space_free(t, bah, size); 293 } 294 295 int 296 eisa_conf_read_mem(ec, slot, func, entry, ecm) 297 eisa_chipset_tag_t ec; 298 int slot, func, entry; 299 struct eisa_cfg_mem *ecm; 300 { 301 302 /* XXX XXX XXX */ 303 return (ENOENT); 304 } 305 306 int 307 eisa_conf_read_irq(ec, slot, func, entry, eci) 308 eisa_chipset_tag_t ec; 309 int slot, func, entry; 310 struct eisa_cfg_irq *eci; 311 { 312 313 /* XXX XXX XXX */ 314 return (ENOENT); 315 } 316 317 int 318 eisa_conf_read_dma(ec, slot, func, entry, ecd) 319 eisa_chipset_tag_t ec; 320 int slot, func, entry; 321 struct eisa_cfg_dma *ecd; 322 { 323 324 /* XXX XXX XXX */ 325 return (ENOENT); 326 } 327 328 int 329 eisa_conf_read_io(ec, slot, func, entry, ecio) 330 eisa_chipset_tag_t ec; 331 int slot, func, entry; 332 struct eisa_cfg_io *ecio; 333 { 334 335 /* XXX XXX XXX */ 336 return (ENOENT); 337 } 338
Indexes created Sat Oct 25 10:09:55 GMT 2025