1 /* $OpenBSD: eisa_machdep.c,v 1.15 2015/01/24 15:13:55 kettenis 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Christopher G. Demetriou 48 * for the NetBSD Project. 49 * 4. The name of the author may not be used to endorse or promote products 50 * derived from this software without specific prior written permission 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 /* 65 * Machine-specific functions for EISA autoconfiguration. 66 */ 67 68 #include <sys/types.h> 69 #include <sys/param.h> 70 #include <sys/time.h> 71 #include <sys/systm.h> 72 #include <sys/errno.h> 73 #include <sys/device.h> 74 75 #include <machine/bus.h> 76 #include <machine/i8259.h> 77 78 #include <dev/isa/isavar.h> 79 #include <dev/eisa/eisavar.h> 80 81 /* 82 * EISA doesn't have any special needs; just use the generic versions 83 * of these funcions. 84 */ 85 struct bus_dma_tag eisa_bus_dma_tag = { 86 NULL, /* _cookie */ 87 _bus_dmamap_create, 88 _bus_dmamap_destroy, 89 _bus_dmamap_load, 90 _bus_dmamap_load_mbuf, 91 _bus_dmamap_load_uio, 92 _bus_dmamap_load_raw, 93 _bus_dmamap_unload, 94 _bus_dmamap_sync, 95 _bus_dmamem_alloc, 96 _bus_dmamem_alloc_range, 97 _bus_dmamem_free, 98 _bus_dmamem_map, 99 _bus_dmamem_unmap, 100 _bus_dmamem_mmap, 101 }; 102 103 void 104 eisa_attach_hook(struct device *parent, struct device *self, 105 struct eisabus_attach_args *eba) 106 { 107 /* Nothing to do */ 108 } 109 110 int 111 eisa_maxslots(eisa_chipset_tag_t ec) 112 { 113 /* 114 * Always try 16 slots. 115 */ 116 return (16); 117 } 118 119 int 120 eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp) 121 { 122 #if NIOAPIC > 0 123 struct mp_intr_map *mip; 124 #endif 125 126 if (irq >= ICU_LEN) { 127 printf("eisa_intr_map: bad IRQ %d\n", irq); 128 *ihp = -1; 129 return (1); 130 } 131 if (irq == 2) { 132 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); 133 irq = 9; 134 } 135 136 #if NIOAPIC > 0 137 if (mp_busses != NULL) { 138 /* 139 * Assumes 1:1 mapping between PCI bus numbers and 140 * the numbers given by the MP bios. 141 * XXX Is this a valid assumption? 142 */ 143 144 for (mip = mp_busses[bus].mb_intrs; mip != NULL; 145 mip = mip->next) { 146 if (mip->bus_pin == irq) { 147 *ihp = mip->ioapic_ih | irq; 148 return (0); 149 } 150 } 151 if (mip == NULL) 152 printf("eisa_intr_map: no MP mapping found\n"); 153 } 154 #endif 155 156 *ihp = irq; 157 return (0); 158 } 159 160 const char * 161 eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih) 162 { 163 static char irqstr[64]; 164 165 if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2) 166 panic("eisa_intr_string: bogus handle 0x%x", ih); 167 168 #if NIOAPIC > 0 169 if (ih & APIC_INT_VIA_APIC) { 170 snprintf(irqstr, sizeof irqstr, "apic %d int %d (irq %d)", 171 APIC_IRQ_APIC(ih), APIC_IRQ_PIN(ih), ih & 0xff); 172 return (irqstr); 173 } 174 #endif 175 176 snprintf(irqstr, sizeof irqstr, "irq %d", ih); 177 return (irqstr); 178 179 } 180 181 void * 182 eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, int type, 183 int level, int (*func)(void *), void *arg, char *what) 184 { 185 #if NIOAPIC > 0 186 if (ih != -1) { 187 if (ih != -1 && (ih & APIC_INT_VIA_APIC)) { 188 return (apic_intr_establish(ih, type, level, func, arg, 189 what)); 190 } 191 } 192 #endif 193 if (ih == 0 || ih >= ICU_LEN || ih == 2) 194 panic("eisa_intr_establish: bogus handle 0x%x", ih); 195 196 return (isa_intr_establish(NULL, ih, type, level, func, arg, what)); 197 } 198 199 void 200 eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie) 201 { 202 return (isa_intr_disestablish(NULL, cookie)); 203 } 204