Annotation of sys/arch/solbourne/dev/obio.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: obio.c,v 1.1 2005/04/20 01:00:16 miod Exp $ */
2: /* OpenBSD: obio.c,v 1.16 2004/09/29 07:35:11 miod Exp */
3:
4: /*
5: * Copyright (c) 1993, 1994 Theo de Raadt
6: * Copyright (c) 1995, 1997 Paul Kranenburg
7: * All rights reserved.
8: *
9: * Redistribution and use in source and binary forms, with or without
10: * modification, are permitted provided that the following conditions
11: * are met:
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in the
16: * documentation and/or other materials provided with the distribution.
17: * 3. The name of the author may not be used to endorse or promote products
18: * derived from this software without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30: */
31:
32: #include <sys/param.h>
33: #include <sys/systm.h>
34: #include <sys/device.h>
35:
36: #include <machine/autoconf.h>
37: #include <machine/cpu.h>
38: #include <machine/idt.h>
39:
40: /* autoconfiguration driver */
41: static int obiomatch(struct device *, void *, void *);
42: static void obioattach(struct device *, struct device *, void *);
43:
44: int obioprint(void *, const char *);
45: int obio_scan(struct device *, void *, void *);
46:
47: struct cfattach obio_ca = {
48: sizeof(struct device), obiomatch, obioattach
49: };
50:
51: struct cfdriver obio_cd = {
52: NULL, "obio", DV_DULL
53: };
54:
55: /*
56: * A list of the on-board devices in the IDT systems. This is better than
57: * having people playing with locators in their kernel configuration
58: * files, and necessary because the device tree built by the PROM does not
59: * list all on-board devices (audio and floppy are missing).
60: */
61: const struct {
62: char *devname;
63: paddr_t address;
64: int intr;
65: } obio_devices[] = {
66: { "tod", TODCLOCK_BASE, -1 },
67: { "nvram", NVRAM_BASE, -1 },
68: { "zs", ZS0_BASE, 12 },
69: { "zs", ZS1_BASE, 12 },
70: { "fdc", FDC_BASE, 11 },
71: { "audioamd", AUDIO_BASE, 13 },
72: { "wdsc", SE_BASE + 0x20, 4 },
73: { "le", SE_BASE + 0x30, 6 },
74: { NULL, 0 }
75: };
76:
77: int
78: obiomatch(parent, vcf, aux)
79: struct device *parent;
80: void *vcf, *aux;
81: {
82: register struct cfdata *cf = vcf;
83: register struct confargs *ca = aux;
84: register struct romaux *ra = &ca->ca_ra;
85:
86: return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
87: }
88:
89: int
90: obioprint(args, obio)
91: void *args;
92: const char *obio;
93: {
94: register struct confargs *ca = args;
95:
96: if (ca->ca_ra.ra_name == NULL)
97: ca->ca_ra.ra_name = "<unknown>";
98:
99: if (obio)
100: printf("%s at %s", ca->ca_ra.ra_name, obio);
101:
102: printf(" addr %p", ca->ca_ra.ra_paddr);
103:
104: return (UNCONF);
105: }
106:
107: void
108: obioattach(parent, self, args)
109: struct device *parent, *self;
110: void *args;
111: {
112: struct confargs *ca = args;
113: struct confargs oca;
114: int i;
115:
116: if (self->dv_unit > 0) {
117: printf(" unsupported\n");
118: return;
119: }
120: printf("\n");
121:
122: for (i = 0; obio_devices[i].devname != NULL; i++) {
123: /* fake a rom_reg */
124: bzero(&oca, sizeof oca);
125: oca.ca_ra.ra_paddr = (caddr_t)obio_devices[i].address;
126: oca.ca_ra.ra_vaddr = NULL;
127: oca.ca_ra.ra_len = 0;
128: oca.ca_ra.ra_nreg = 1;
129: oca.ca_ra.ra_iospace = 0;
130: oca.ca_ra.ra_intr[0].int_pri = obio_devices[i].intr;
131: oca.ca_ra.ra_intr[0].int_vec = -1;
132: oca.ca_ra.ra_nintr = oca.ca_ra.ra_intr[0].int_pri < 0 ? 0 : 1;
133: oca.ca_ra.ra_name = obio_devices[i].devname;
134: if (ca->ca_ra.ra_bp != NULL)
135: oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
136: else
137: oca.ca_ra.ra_bp = NULL;
138: oca.ca_bustype = BUS_OBIO;
139:
140: config_found(self, &oca, obioprint);
141: }
142: }
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