Annotation of sys/arch/i386/eisa/eisa_machdep.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: eisa_machdep.c,v 1.10 2006/09/19 11:06:33 jsg Exp $ */
! 2: /* $NetBSD: eisa_machdep.c,v 1.10.22.2 2000/06/25 19:36:58 sommerfeld Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1997 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
! 10: * NASA Ames Research Center.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. All advertising materials mentioning features or use of this software
! 21: * must display the following acknowledgement:
! 22: * This product includes software developed by the NetBSD
! 23: * Foundation, Inc. and its contributors.
! 24: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 25: * contributors may be used to endorse or promote products derived
! 26: * from this software without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 38: * POSSIBILITY OF SUCH DAMAGE.
! 39: */
! 40:
! 41: /*
! 42: * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
! 43: *
! 44: * Redistribution and use in source and binary forms, with or without
! 45: * modification, are permitted provided that the following conditions
! 46: * are met:
! 47: * 1. Redistributions of source code must retain the above copyright
! 48: * notice, this list of conditions and the following disclaimer.
! 49: * 2. Redistributions in binary form must reproduce the above copyright
! 50: * notice, this list of conditions and the following disclaimer in the
! 51: * documentation and/or other materials provided with the distribution.
! 52: * 3. All advertising materials mentioning features or use of this software
! 53: * must display the following acknowledgement:
! 54: * This product includes software developed by Christopher G. Demetriou
! 55: * for the NetBSD Project.
! 56: * 4. The name of the author may not be used to endorse or promote products
! 57: * derived from this software without specific prior written permission
! 58: *
! 59: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 60: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 61: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 62: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 63: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 64: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 65: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 66: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 67: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 68: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 69: */
! 70:
! 71: /*
! 72: * Machine-specific functions for EISA autoconfiguration.
! 73: */
! 74:
! 75: #include <sys/types.h>
! 76: #include <sys/param.h>
! 77: #include <sys/time.h>
! 78: #include <sys/systm.h>
! 79: #include <sys/errno.h>
! 80: #include <sys/device.h>
! 81:
! 82: #define _I386_BUS_DMA_PRIVATE
! 83: #include <machine/bus.h>
! 84: #include <machine/i8259.h>
! 85:
! 86: #include <dev/isa/isavar.h>
! 87: #include <dev/eisa/eisavar.h>
! 88:
! 89: /*
! 90: * EISA doesn't have any special needs; just use the generic versions
! 91: * of these funcions.
! 92: */
! 93: struct i386_bus_dma_tag eisa_bus_dma_tag = {
! 94: NULL, /* _cookie */
! 95: _bus_dmamap_create,
! 96: _bus_dmamap_destroy,
! 97: _bus_dmamap_load,
! 98: _bus_dmamap_load_mbuf,
! 99: _bus_dmamap_load_uio,
! 100: _bus_dmamap_load_raw,
! 101: _bus_dmamap_unload,
! 102: NULL, /* _dmamap_sync */
! 103: _bus_dmamem_alloc,
! 104: _bus_dmamem_free,
! 105: _bus_dmamem_map,
! 106: _bus_dmamem_unmap,
! 107: _bus_dmamem_mmap,
! 108: };
! 109:
! 110: void
! 111: eisa_attach_hook(struct device *parent, struct device *self,
! 112: struct eisabus_attach_args *eba)
! 113: {
! 114: /* Nothing to do */
! 115: }
! 116:
! 117: int
! 118: eisa_maxslots(eisa_chipset_tag_t ec)
! 119: {
! 120: /*
! 121: * Always try 16 slots.
! 122: */
! 123: return (16);
! 124: }
! 125:
! 126: int
! 127: eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp)
! 128: {
! 129: #if NIOAPIC > 0
! 130: struct mp_intr_map *mip;
! 131: #endif
! 132:
! 133: if (irq >= ICU_LEN) {
! 134: printf("eisa_intr_map: bad IRQ %d\n", irq);
! 135: *ihp = -1;
! 136: return (1);
! 137: }
! 138: if (irq == 2) {
! 139: printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
! 140: irq = 9;
! 141: }
! 142:
! 143: #if NIOAPIC > 0
! 144: if (mp_busses != NULL) {
! 145: /*
! 146: * Assumes 1:1 mapping between PCI bus numbers and
! 147: * the numbers given by the MP bios.
! 148: * XXX Is this a valid assumption?
! 149: */
! 150:
! 151: for (mip = mp_busses[bus].mb_intrs; mip != NULL;
! 152: mip = mip->next) {
! 153: if (mip->bus_pin == irq) {
! 154: *ihp = mip->ioapic_ih | irq;
! 155: return (0);
! 156: }
! 157: }
! 158: if (mip == NULL)
! 159: printf("eisa_intr_map: no MP mapping found\n");
! 160: }
! 161: #endif
! 162:
! 163: *ihp = irq;
! 164: return (0);
! 165: }
! 166:
! 167: const char *
! 168: eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
! 169: {
! 170: static char irqstr[64];
! 171:
! 172: if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2)
! 173: panic("eisa_intr_string: bogus handle 0x%x", ih);
! 174:
! 175: #if NIOAPIC > 0
! 176: if (ih & APIC_INT_VIA_APIC) {
! 177: snprintf(irqstr, sizeof irqstr, "apic %d int %d (irq %d)",
! 178: APIC_IRQ_APIC(ih), APIC_IRQ_PIN(ih), ih & 0xff);
! 179: return (irqstr);
! 180: }
! 181: #endif
! 182:
! 183: snprintf(irqstr, sizeof irqstr, "irq %d", ih);
! 184: return (irqstr);
! 185:
! 186: }
! 187:
! 188: void *
! 189: eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, int type,
! 190: int level, int (*func)(void *), void *arg, char *what)
! 191: {
! 192: #if NIOAPIC > 0
! 193: if (ih != -1) {
! 194: if (ih != -1 && (ih & APIC_INT_VIA_APIC)) {
! 195: return (apic_intr_establish(ih, type, level, func, arg,
! 196: what));
! 197: }
! 198: }
! 199: #endif
! 200: if (ih == 0 || ih >= ICU_LEN || ih == 2)
! 201: panic("eisa_intr_establish: bogus handle 0x%x", ih);
! 202:
! 203: return (isa_intr_establish(NULL, ih, type, level, func, arg, what));
! 204: }
! 205:
! 206: void
! 207: eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie)
! 208: {
! 209: return (isa_intr_disestablish(NULL, cookie));
! 210: }
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