eisa_machdep.c revision 1.5.8.1
1 /* $NetBSD: eisa_machdep.c,v 1.5.8.1 1997/05/13 02:45:54 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 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/types.h> 75 #include <sys/param.h> 76 #include <sys/time.h> 77 #include <sys/systm.h> 78 #include <sys/errno.h> 79 #include <sys/device.h> 80 #include <sys/extent.h> 81 82 #define _I386_BUS_DMA_PRIVATE 83 #include <machine/bus.h> 84 85 #include <i386/isa/icu.h> 86 #include <dev/isa/isareg.h> 87 #include <dev/isa/isavar.h> 88 #include <dev/eisa/eisavar.h> 89 90 /* 91 * EISA doesn't have any special needs; just use the generic versions 92 * of these funcions. 93 */ 94 struct i386_bus_dma_tag eisa_bus_dma_tag = { 95 NULL, /* _cookie */ 96 _bus_dmamap_create, 97 _bus_dmamap_destroy, 98 _bus_dmamap_load, 99 _bus_dmamap_load_mbuf, 100 _bus_dmamap_load_uio, 101 _bus_dmamap_load_raw, 102 _bus_dmamap_unload, 103 NULL, /* _dmamap_sync */ 104 _bus_dmamem_alloc, 105 _bus_dmamem_free, 106 _bus_dmamem_map, 107 _bus_dmamem_unmap, 108 _bus_dmamem_mmap, 109 }; 110 111 void 112 eisa_attach_hook(parent, self, eba) 113 struct device *parent, *self; 114 struct eisabus_attach_args *eba; 115 { 116 117 /* Give the MI code the bus DMA tag. */ 118 eba->eba_dmat = &eisa_bus_dma_tag; 119 } 120 121 int 122 eisa_maxslots(ec) 123 eisa_chipset_tag_t ec; 124 { 125 126 /* 127 * Always try 16 slots. 128 */ 129 return (16); 130 } 131 132 int 133 eisa_intr_map(ec, irq, ihp) 134 eisa_chipset_tag_t ec; 135 u_int irq; 136 eisa_intr_handle_t *ihp; 137 { 138 139 if (irq >= ICU_LEN) { 140 printf("eisa_intr_map: bad IRQ %d\n", irq); 141 *ihp = -1; 142 return 1; 143 } 144 if (irq == 2) { 145 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); 146 irq = 9; 147 } 148 149 *ihp = irq; 150 return 0; 151 } 152 153 const char * 154 eisa_intr_string(ec, ih) 155 eisa_chipset_tag_t ec; 156 eisa_intr_handle_t ih; 157 { 158 static char irqstr[8]; /* 4 + 2 + NULL + sanity */ 159 160 if (ih == 0 || ih >= ICU_LEN || ih == 2) 161 panic("eisa_intr_string: bogus handle 0x%x\n", ih); 162 163 sprintf(irqstr, "irq %d", ih); 164 return (irqstr); 165 166 } 167 168 void * 169 eisa_intr_establish(ec, ih, type, level, func, arg) 170 eisa_chipset_tag_t ec; 171 eisa_intr_handle_t ih; 172 int type, level, (*func) __P((void *)); 173 void *arg; 174 { 175 176 if (ih == 0 || ih >= ICU_LEN || ih == 2) 177 panic("eisa_intr_establish: bogus handle 0x%x\n", ih); 178 179 return isa_intr_establish(NULL, ih, type, level, func, arg); 180 } 181 182 void 183 eisa_intr_disestablish(ec, cookie) 184 eisa_chipset_tag_t ec; 185 void *cookie; 186 { 187 188 return isa_intr_disestablish(NULL, cookie); 189 } 190 191 int 192 eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp) 193 bus_space_tag_t t; 194 bus_size_t size, align; 195 bus_addr_t boundary; 196 int cacheable; 197 bus_addr_t *addrp; 198 bus_space_handle_t *bahp; 199 { 200 extern struct extent *iomem_ex; 201 202 /* 203 * Allocate physical address space after the ISA hole. 204 */ 205 return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align, 206 boundary, cacheable, addrp, bahp); 207 } 208 209 void 210 eisa_mem_free(t, bah, size) 211 bus_space_tag_t t; 212 bus_space_handle_t bah; 213 bus_size_t size; 214 { 215 216 bus_space_free(t, bah, size); 217 } 218
Indexes created Tue Oct 28 07:09:57 GMT 2025