Annotation of sys/dev/eisa/dpt_eisa.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: dpt_eisa.c,v 1.3 2003/10/21 10:27:12 jmc Exp $ */
2: /* $NetBSD: dpt_eisa.c,v 1.2 1999/10/18 21:59:19 ad Exp $ */
3:
4: /*
5: * Copyright (c) 1999 Andy Doran <ad@NetBSD.org>
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: *
29: */
30:
31: /*
32: * EISA front-end for DPT EATA SCSI driver.
33: */
34:
35: #include <sys/cdefs.h>
36: #ifdef __NetBSD__
37: __KERNEL_RCSID(0, "$NetBSD: dpt_eisa.c,v 1.2 1999/10/18 21:59:19 ad Exp $");
38: #endif /* __NetBSD__ */
39:
40: #include <sys/types.h>
41: #include <sys/param.h>
42: #include <sys/systm.h>
43: #include <sys/device.h>
44:
45: #include <machine/bus.h>
46: #include <machine/intr.h>
47:
48: #ifdef __NetBSD__
49: #include <dev/scsipi/scsi_all.h>
50: #include <dev/scsipi/scsipi_all.h>
51: #include <dev/scsipi/scsiconf.h>
52: #endif /* __NetBSD__ */
53: #ifdef __OpenBSD__
54: #include <scsi/scsi_all.h>
55: #include <scsi/scsiconf.h>
56: #endif /* __OpenBSD__ */
57:
58: #include <dev/eisa/eisavar.h>
59: #include <dev/eisa/eisadevs.h>
60:
61: #include <dev/ic/dptreg.h>
62: #include <dev/ic/dptvar.h>
63:
64: #define DPT_EISA_SLOT_OFFSET 0x0c00
65: #define DPT_EISA_IOSIZE 0x0100
66: #define DPT_EISA_IOCONF 0x90
67: #define DPT_EISA_EATA_REG_OFFSET 0x88
68:
69: int dpt_eisa_irq(bus_space_tag_t, bus_space_handle_t, int *);
70: #ifdef __NetBSD__
71: int dpt_eisa_match(struct device *, struct cfdata *, void *);
72: #endif /* __NetBSD__ */
73: #ifdef __OpenBSD__
74: int dpt_eisa_match(struct device *, void *, void *);
75: #endif /* __OpenBSD__ */
76: void dpt_eisa_attach(struct device *, struct device *, void *);
77:
78: struct cfattach dpt_eisa_ca = {
79: sizeof(struct dpt_softc), dpt_eisa_match, dpt_eisa_attach
80: };
81:
82: const char *dpt_eisa_boards[] = {
83: "DPT2402",
84: "DPTA401",
85: "DPTA402",
86: "DPTA410",
87: "DPTA411",
88: "DPTA412",
89: "DPTA420",
90: "DPTA501",
91: "DPTA502",
92: "DPTA701",
93: "DPTBC01",
94: "NEC8200", /* OEM */
95: "ATT2408", /* OEM */
96: NULL
97: };
98:
99: int
100: dpt_eisa_irq(iot, ioh, irq)
101: bus_space_tag_t iot;
102: bus_space_handle_t ioh;
103: int *irq;
104: {
105:
106: switch (bus_space_read_1(iot, ioh, DPT_EISA_IOCONF) & 0x38) {
107: case 0x08:
108: *irq = 11;
109: break;
110: case 0x10:
111: *irq = 15;
112: break;
113: case 0x20:
114: *irq = 14;
115: break;
116: default:
117: return (-1);
118: }
119:
120: return (0);
121: }
122:
123: int
124: dpt_eisa_match(parent, match, aux)
125: struct device *parent;
126: #ifdef __NetBSD__
127: struct cfdata *match;
128: #endif /* __NetBSD__ */
129: #ifdef __OpenBSD__
130: void *match;
131: #endif /* __OpenBSD__ */
132: void *aux;
133: {
134: struct eisa_attach_args *ea;
135: int i;
136:
137: ea = aux;
138:
139: for (i = 0; dpt_eisa_boards[i] != NULL; i++)
140: if (strcmp(ea->ea_idstring, dpt_eisa_boards[i]) == 0)
141: break;
142:
143: return (dpt_eisa_boards[i] != NULL);
144: }
145:
146: void
147: dpt_eisa_attach(parent, self, aux)
148: struct device *parent, *self;
149: void *aux;
150: {
151: struct eisa_attach_args *ea;
152: bus_space_handle_t ioh;
153: eisa_chipset_tag_t ec;
154: eisa_intr_handle_t ih;
155: struct dpt_softc *sc;
156: bus_space_tag_t iot;
157: const char *intrstr;
158: int irq;
159:
160: ea = aux;
161: sc = (struct dpt_softc *)self;
162: iot = ea->ea_iot;
163: ec = ea->ea_ec;
164:
165: printf(": ");
166:
167: if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
168: DPT_EISA_SLOT_OFFSET, DPT_EISA_IOSIZE, 0, &ioh)) {
169: printf("can't map i/o space\n");
170: return;
171: }
172:
173: sc->sc_iot = iot;
174: sc->sc_ioh = ioh;
175: sc->sc_dmat = ea->ea_dmat;
176:
177: /* Map and establish the interrupt. */
178: if (dpt_eisa_irq(iot, ioh, &irq)) {
179: printf("HBA on invalid IRQ (%d)\n", irq);
180: return;
181: }
182:
183: if (eisa_intr_map(ec, irq, &ih)) {
184: printf("can't map interrupt (%d)\n", irq);
185: return;
186: }
187:
188: intrstr = eisa_intr_string(ec, ih);
189: #ifdef __NetBSD__
190: sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
191: dpt_intr, sc);
192: #endif /* __NetBSD__ */
193: #ifdef __OpenBSD__
194: sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
195: dpt_intr, sc, sc->sc_dv.dv_xname);
196: #endif /* __OpenBSD__ */
197: if (sc->sc_ih == NULL) {
198: printf("can't establish interrupt");
199: if (intrstr != NULL)
200: printf(" at %s", intrstr);
201: printf("\n");
202: return;
203: }
204:
205: /* Read the EATA configuration */
206: if (dpt_readcfg(sc)) {
207: printf("%s: readcfg failed - see dpt(4)\n",
208: sc->sc_dv.dv_xname);
209: return;
210: }
211:
212: /* Now attach to the bus-independent code */
213: dpt_init(sc, intrstr);
214: }
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