eisa_machdep.c revision 1.21
1 /* $NetBSD: eisa_machdep.c,v 1.21 2003/10/30 21:19:54 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 1.21 2003/10/30 21:19:54 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 _X86_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 x86_bus_dma_tag eisa_bus_dma_tag = { 104 0, /* _bounce_thresh */ 105 0, /* _bounce_alloc_lo */ 106 0, /* _bounce_alloc_hi */ 107 NULL, /* _may_bounce */ 108 _bus_dmamap_create, 109 _bus_dmamap_destroy, 110 _bus_dmamap_load, 111 _bus_dmamap_load_mbuf, 112 _bus_dmamap_load_uio, 113 _bus_dmamap_load_raw, 114 _bus_dmamap_unload, 115 NULL, /* _dmamap_sync */ 116 _bus_dmamem_alloc, 117 _bus_dmamem_free, 118 _bus_dmamem_map, 119 _bus_dmamem_unmap, 120 _bus_dmamem_mmap, 121 }; 122 123 void 124 eisa_attach_hook(parent, self, eba) 125 struct device *parent, *self; 126 struct eisabus_attach_args *eba; 127 { 128 extern int eisa_has_been_seen; 129 130 /* 131 * Notify others that might need to know that the EISA bus 132 * has now been attached. 133 */ 134 if (eisa_has_been_seen) 135 panic("eisaattach: EISA bus already seen!"); 136 eisa_has_been_seen = 1; 137 } 138 139 int 140 eisa_maxslots(ec) 141 eisa_chipset_tag_t ec; 142 { 143 144 /* 145 * Always try 16 slots. 146 */ 147 return (16); 148 } 149 150 int 151 eisa_intr_map(ec, irq, ihp) 152 eisa_chipset_tag_t ec; 153 u_int irq; 154 eisa_intr_handle_t *ihp; 155 { 156 if (irq >= NUM_LEGACY_IRQS) { 157 printf("eisa_intr_map: bad IRQ %d\n", irq); 158 *ihp = -1; 159 return 1; 160 } 161 if (irq == 2) { 162 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); 163 irq = 9; 164 } 165 166 #if NIOAPIC > 0 167 168 if (mp_busses != NULL) { 169 if (intr_find_mpmapping(mp_eisa_bus, irq, ihp) == 0 || 170 intr_find_mpmapping(mp_isa_bus, irq, ihp) == 0) { 171 *ihp |= irq; 172 return 0; 173 } else 174 printf("eisa_intr_map: no MP mapping found\n"); 175 } 176 printf("eisa_intr_map: no MP mapping found\n"); 177 #endif 178 179 *ihp = irq; 180 return 0; 181 } 182 183 const char * 184 eisa_intr_string(ec, ih) 185 eisa_chipset_tag_t ec; 186 eisa_intr_handle_t ih; 187 { 188 static char irqstr[8]; /* 4 + 2 + NULL + sanity */ 189 190 if (ih == 0 || (ih & 0xff) >= NUM_LEGACY_IRQS || ih == 2) 191 panic("eisa_intr_string: bogus handle 0x%x", ih); 192 193 #if NIOAPIC > 0 194 if (ih & APIC_INT_VIA_APIC) 195 sprintf(irqstr, "apic %d int %d (irq %d)", 196 APIC_IRQ_APIC(ih), 197 APIC_IRQ_PIN(ih), 198 ih&0xff); 199 else 200 sprintf(irqstr, "irq %d", ih&0xff); 201 #else 202 sprintf(irqstr, "irq %d", ih); 203 #endif 204 return (irqstr); 205 206 } 207 208 const struct evcnt * 209 eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih) 210 { 211 212 /* XXX for now, no evcnt parent reported */ 213 return NULL; 214 } 215 216 void * 217 eisa_intr_establish(ec, ih, type, level, func, arg) 218 eisa_chipset_tag_t ec; 219 eisa_intr_handle_t ih; 220 int type, level, (*func) __P((void *)); 221 void *arg; 222 { 223 int pin, irq; 224 struct pic *pic; 225 226 pic = &i8259_pic; 227 pin = irq = ih; 228 229 #if NIOAPIC > 0 230 if (ih & APIC_INT_VIA_APIC) { 231 pic = (struct pic *)ioapic_find(APIC_IRQ_APIC(ih)); 232 if (pic == NULL) { 233 printf("eisa_intr_establish: bad ioapic %d\n", 234 APIC_IRQ_APIC(ih)); 235 return NULL; 236 } 237 pin = APIC_IRQ_PIN(ih); 238 irq = APIC_IRQ_LEGACY_IRQ(ih); 239 if (irq < 0 || irq >= NUM_LEGACY_IRQS) 240 irq = -1; 241 } 242 #endif 243 244 return intr_establish(irq, pic, pin, type, level, func, arg); 245 } 246 247 void 248 eisa_intr_disestablish(ec, cookie) 249 eisa_chipset_tag_t ec; 250 void *cookie; 251 { 252 253 intr_disestablish(cookie); 254 } 255 256 int 257 eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp) 258 bus_space_tag_t t; 259 bus_size_t size, align; 260 bus_addr_t boundary; 261 int cacheable; 262 bus_addr_t *addrp; 263 bus_space_handle_t *bahp; 264 { 265 extern struct extent *iomem_ex; 266 267 /* 268 * Allocate physical address space after the ISA hole. 269 */ 270 return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align, 271 boundary, cacheable, addrp, bahp); 272 } 273 274 void 275 eisa_mem_free(t, bah, size) 276 bus_space_tag_t t; 277 bus_space_handle_t bah; 278 bus_size_t size; 279 { 280 281 bus_space_free(t, bah, size); 282 } 283 284 int 285 eisa_conf_read_mem(ec, slot, func, entry, ecm) 286 eisa_chipset_tag_t ec; 287 int slot, func, entry; 288 struct eisa_cfg_mem *ecm; 289 { 290 291 /* XXX XXX XXX */ 292 return (ENOENT); 293 } 294 295 int 296 eisa_conf_read_irq(ec, slot, func, entry, eci) 297 eisa_chipset_tag_t ec; 298 int slot, func, entry; 299 struct eisa_cfg_irq *eci; 300 { 301 302 /* XXX XXX XXX */ 303 return (ENOENT); 304 } 305 306 int 307 eisa_conf_read_dma(ec, slot, func, entry, ecd) 308 eisa_chipset_tag_t ec; 309 int slot, func, entry; 310 struct eisa_cfg_dma *ecd; 311 { 312 313 /* XXX XXX XXX */ 314 return (ENOENT); 315 } 316 317 int 318 eisa_conf_read_io(ec, slot, func, entry, ecio) 319 eisa_chipset_tag_t ec; 320 int slot, func, entry; 321 struct eisa_cfg_io *ecio; 322 { 323 324 /* XXX XXX XXX */ 325 return (ENOENT); 326 } 327
Indexes created Sat Oct 25 16:10:12 GMT 2025