Annotation of src/sys/arch/i386/eisa/eisa_machdep.c, Revision 1.10.22.1
1.10.22.1! sommerfe 1: /* $NetBSD: eisa_machdep.c,v 1.10 1998/06/03 06:35:49 thorpej Exp $ */
1.6 thorpej 2:
3: /*-
1.7 thorpej 4: * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
1.6 thorpej 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: */
1.1 cgd 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>
1.5 thorpej 80: #include <sys/extent.h>
1.1 cgd 81:
1.6 thorpej 82: #define _I386_BUS_DMA_PRIVATE
83: #include <machine/bus.h>
84:
1.1 cgd 85: #include <i386/isa/icu.h>
1.5 thorpej 86: #include <dev/isa/isareg.h>
1.1 cgd 87: #include <dev/isa/isavar.h>
88: #include <dev/eisa/eisavar.h>
89:
1.6 thorpej 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 = {
1.10 thorpej 95: 0, /* _bounce_thresh */
1.6 thorpej 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:
1.1 cgd 111: void
112: eisa_attach_hook(parent, self, eba)
113: struct device *parent, *self;
114: struct eisabus_attach_args *eba;
115: {
1.7 thorpej 116: extern int eisa_has_been_seen;
1.1 cgd 117:
1.7 thorpej 118: /*
1.8 thorpej 119: * Notify others that might need to know that the EISA bus
1.7 thorpej 120: * has now been attached.
121: */
122: if (eisa_has_been_seen)
123: panic("eisaattach: EISA bus already seen!");
124: eisa_has_been_seen = 1;
1.1 cgd 125: }
126:
127: int
128: eisa_maxslots(ec)
129: eisa_chipset_tag_t ec;
130: {
131:
132: /*
133: * Always try 16 slots.
134: */
135: return (16);
136: }
137:
138: int
139: eisa_intr_map(ec, irq, ihp)
140: eisa_chipset_tag_t ec;
141: u_int irq;
142: eisa_intr_handle_t *ihp;
143: {
1.10.22.1! sommerfe 144: #if NIOAPIC > 0
! 145: struct mp_intr_map *mip;
! 146: #endif
1.1 cgd 147:
148: if (irq >= ICU_LEN) {
1.4 christos 149: printf("eisa_intr_map: bad IRQ %d\n", irq);
1.1 cgd 150: *ihp = -1;
151: return 1;
152: }
153: if (irq == 2) {
1.4 christos 154: printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
1.1 cgd 155: irq = 9;
156: }
157:
1.10.22.1! sommerfe 158: #if NIOAPIC > 0
! 159: if (mp_busses != NULL) {
! 160: /*
! 161: * Assumes 1:1 mapping between PCI bus numbers and
! 162: * the numbers given by the MP bios.
! 163: * XXX Is this a valid assumption?
! 164: */
! 165:
! 166: for (mip = mp_busses[bus].mb_intrs; mip != NULL; mip=mip->next) {
! 167: if (mip->bus_pin == irq) {
! 168: *ihp = mip->ioapic_ih | irq;
! 169: return 0;
! 170: }
! 171: }
! 172: if (mip == NULL)
! 173: printf("eisa_intr_map: no MP mapping found\n");
! 174: }
! 175: #endif
! 176:
! 177:
1.1 cgd 178: *ihp = irq;
179: return 0;
180: }
181:
182: const char *
183: eisa_intr_string(ec, ih)
184: eisa_chipset_tag_t ec;
185: eisa_intr_handle_t ih;
186: {
187: static char irqstr[8]; /* 4 + 2 + NULL + sanity */
188:
1.10.22.1! sommerfe 189: if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2)
1.1 cgd 190: panic("eisa_intr_string: bogus handle 0x%x\n", ih);
191:
1.10.22.1! sommerfe 192: #if NIOAPIC > 0
! 193: if (ih & APIC_INT_VIA_APIC)
! 194: sprintf(irqstr, "apic %d int %d (irq %d)",
! 195: APIC_IRQ_APIC(ih),
! 196: APIC_IRQ_PIN(ih),
! 197: ih&0xff);
! 198: else
! 199: sprintf(irqstr, "irq %d", ih&0xff);
! 200: #else
1.4 christos 201: sprintf(irqstr, "irq %d", ih);
1.10.22.1! sommerfe 202: #endif
1.1 cgd 203: return (irqstr);
204:
205: }
206:
207: void *
208: eisa_intr_establish(ec, ih, type, level, func, arg)
209: eisa_chipset_tag_t ec;
210: eisa_intr_handle_t ih;
211: int type, level, (*func) __P((void *));
212: void *arg;
213: {
1.10.22.1! sommerfe 214: if (ih != -1) {
! 215: #if NIOAPIC > 0
! 216: if (ih & APIC_INT_VIA_APIC) {
! 217: return apic_intr_establish(ih, type, level,
! 218: func, arg);
! 219: }
! 220: #endif
! 221: }
1.1 cgd 222:
223: if (ih == 0 || ih >= ICU_LEN || ih == 2)
224: panic("eisa_intr_establish: bogus handle 0x%x\n", ih);
225:
1.2 cgd 226: return isa_intr_establish(NULL, ih, type, level, func, arg);
1.1 cgd 227: }
228:
229: void
230: eisa_intr_disestablish(ec, cookie)
231: eisa_chipset_tag_t ec;
232: void *cookie;
233: {
234:
1.2 cgd 235: return isa_intr_disestablish(NULL, cookie);
1.5 thorpej 236: }
237:
238: int
239: eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
240: bus_space_tag_t t;
241: bus_size_t size, align;
242: bus_addr_t boundary;
243: int cacheable;
244: bus_addr_t *addrp;
245: bus_space_handle_t *bahp;
246: {
247: extern struct extent *iomem_ex;
248:
249: /*
250: * Allocate physical address space after the ISA hole.
251: */
252: return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
253: boundary, cacheable, addrp, bahp);
254: }
255:
256: void
257: eisa_mem_free(t, bah, size)
258: bus_space_tag_t t;
259: bus_space_handle_t bah;
260: bus_size_t size;
261: {
262:
263: bus_space_free(t, bah, size);
1.1 cgd 264: }
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