Annotation of src/sys/arch/i386/eisa/eisa_machdep.c, Revision 1.12.2.1
1.12.2.1! nathanw 1: /* $NetBSD: eisa_machdep.c,v 1.12 2000/08/11 00:43:21 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: {
144:
145: if (irq >= ICU_LEN) {
1.4 christos 146: printf("eisa_intr_map: bad IRQ %d\n", irq);
1.1 cgd 147: *ihp = -1;
148: return 1;
149: }
150: if (irq == 2) {
1.4 christos 151: printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
1.1 cgd 152: irq = 9;
153: }
154:
155: *ihp = irq;
156: return 0;
157: }
158:
159: const char *
160: eisa_intr_string(ec, ih)
161: eisa_chipset_tag_t ec;
162: eisa_intr_handle_t ih;
163: {
164: static char irqstr[8]; /* 4 + 2 + NULL + sanity */
165:
166: if (ih == 0 || ih >= ICU_LEN || ih == 2)
167: panic("eisa_intr_string: bogus handle 0x%x\n", ih);
168:
1.4 christos 169: sprintf(irqstr, "irq %d", ih);
1.1 cgd 170: return (irqstr);
171:
1.11 cgd 172: }
173:
174: const struct evcnt *
175: eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
176: {
177:
178: /* XXX for now, no evcnt parent reported */
179: return NULL;
1.1 cgd 180: }
181:
182: void *
183: eisa_intr_establish(ec, ih, type, level, func, arg)
184: eisa_chipset_tag_t ec;
185: eisa_intr_handle_t ih;
186: int type, level, (*func) __P((void *));
187: void *arg;
188: {
189:
190: if (ih == 0 || ih >= ICU_LEN || ih == 2)
191: panic("eisa_intr_establish: bogus handle 0x%x\n", ih);
192:
1.2 cgd 193: return isa_intr_establish(NULL, ih, type, level, func, arg);
1.1 cgd 194: }
195:
196: void
197: eisa_intr_disestablish(ec, cookie)
198: eisa_chipset_tag_t ec;
199: void *cookie;
200: {
201:
1.12.2.1! nathanw 202: isa_intr_disestablish(NULL, cookie);
1.5 thorpej 203: }
204:
205: int
206: eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
207: bus_space_tag_t t;
208: bus_size_t size, align;
209: bus_addr_t boundary;
210: int cacheable;
211: bus_addr_t *addrp;
212: bus_space_handle_t *bahp;
213: {
214: extern struct extent *iomem_ex;
215:
216: /*
217: * Allocate physical address space after the ISA hole.
218: */
219: return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
220: boundary, cacheable, addrp, bahp);
221: }
222:
223: void
224: eisa_mem_free(t, bah, size)
225: bus_space_tag_t t;
226: bus_space_handle_t bah;
227: bus_size_t size;
228: {
229:
230: bus_space_free(t, bah, size);
1.12 thorpej 231: }
232:
233: int
234: eisa_conf_read_mem(ec, slot, func, entry, ecm)
235: eisa_chipset_tag_t ec;
236: int slot, func, entry;
237: struct eisa_cfg_mem *ecm;
238: {
239:
240: /* XXX XXX XXX */
241: return (ENOENT);
242: }
243:
244: int
245: eisa_conf_read_irq(ec, slot, func, entry, eci)
246: eisa_chipset_tag_t ec;
247: int slot, func, entry;
248: struct eisa_cfg_irq *eci;
249: {
250:
251: /* XXX XXX XXX */
252: return (ENOENT);
253: }
254:
255: int
256: eisa_conf_read_dma(ec, slot, func, entry, ecd)
257: eisa_chipset_tag_t ec;
258: int slot, func, entry;
259: struct eisa_cfg_dma *ecd;
260: {
261:
262: /* XXX XXX XXX */
263: return (ENOENT);
264: }
265:
266: int
267: eisa_conf_read_io(ec, slot, func, entry, ecio)
268: eisa_chipset_tag_t ec;
269: int slot, func, entry;
270: struct eisa_cfg_io *ecio;
271: {
272:
273: /* XXX XXX XXX */
274: return (ENOENT);
1.1 cgd 275: }
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