wdc_ofisa.c revision 1.2 
1/*	$NetBSD: wdc_ofisa.c,v 1.2 1998/03/21 02:06:17 cgd Exp $	*/
2
3/*
4 * Copyright 1997, 1998
5 * Digital Equipment Corporation. All rights reserved.
6 *
7 * This software is furnished under license and may be used and
8 * copied only in accordance with the following terms and conditions.
9 * Subject to these conditions, you may download, copy, install,
10 * use, modify and distribute this software in source and/or binary
11 * form. No title or ownership is transferred hereby.
12 *
13 * 1) Any source code used, modified or distributed must reproduce
14 *    and retain this copyright notice and list of conditions as
15 *    they appear in the source file.
16 *
17 * 2) No right is granted to use any trade name, trademark, or logo of
18 *    Digital Equipment Corporation. Neither the "Digital Equipment
19 *    Corporation" name nor any trademark or logo of Digital Equipment
20 *    Corporation may be used to endorse or promote products derived
21 *    from this software without the prior written permission of
22 *    Digital Equipment Corporation.
23 *
24 * 3) This software is provided "AS-IS" and any express or implied
25 *    warranties, including but not limited to, any implied warranties
26 *    of merchantability, fitness for a particular purpose, or
27 *    non-infringement are disclaimed. In no event shall DIGITAL be
28 *    liable for any damages whatsoever, and in particular, DIGITAL
29 *    shall not be liable for special, indirect, consequential, or
30 *    incidental damages or damages for lost profits, loss of
31 *    revenue or loss of use, whether such damages arise in contract,
32 *    negligence, tort, under statute, in equity, at law or otherwise,
33 *    even if advised of the possibility of such damage.
34 */
35
36/*
37 * OFW Attachment for 'wdc' disk controller driver
38 */
39
40#include <sys/param.h>
41#include <sys/device.h>
42#include <sys/systm.h>
43#include <sys/tty.h>
44
45#include <machine/intr.h>
46#include <machine/bus.h>
47
48#include <dev/ofw/openfirm.h>
49#include <dev/isa/isavar.h>
50#include <dev/ofisa/ofisavar.h>
51
52#include <dev/ic/wdcreg.h>		/* ??? */
53#include <dev/ic/wdcvar.h>
54
55struct wdc_ofisa_softc {
56	struct wdc_softc sc_wdc;
57
58	struct wdc_attachment_data sc_ad;
59	void	*sc_ih;
60};
61
62int wdc_ofisa_probe __P((struct device *, struct cfdata *, void *));
63void wdc_ofisa_attach __P((struct device *, struct device *, void *));
64
65struct cfattach wdc_ofisa_ca = {
66	sizeof(struct wdc_ofisa_softc), wdc_ofisa_probe, wdc_ofisa_attach
67};
68
69int
70wdc_ofisa_probe(parent, cf, aux)
71	struct device *parent;
72	struct cfdata *cf;
73	void *aux;
74{
75	struct ofisa_attach_args *aa = aux;
76	const char *compatible_strings[] = { "pnpPNP,600", NULL };
77	int rv = 0;
78
79	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
80		rv = 5;
81#ifdef _WDC_OFISA_MD_MATCH
82	if (!rv)
83		rv = wdc_ofisa_md_match(parent, cf, aux);
84#endif
85	return (rv);
86}
87
88void
89wdc_ofisa_attach(parent, self, aux)
90	struct device *parent, *self;
91	void *aux;
92{
93	struct wdc_ofisa_softc *osc = (void *)self;
94        struct wdc_softc *sc = &osc->sc_wdc;
95	struct ofisa_attach_args *aa = aux;
96	struct ofisa_reg_desc reg[2];
97	struct ofisa_intr_desc intr;
98	int n;
99
100	/*
101	 * We're living on an ofw.  We have to ask the OFW what our
102	 * registers and interrupts properties look like.
103	 *
104	 * We expect exactly two register regions and one interrupt.
105	 */
106
107	n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2);
108#ifdef _WDC_OFISA_MD_REG_FIXUP
109	n = wdc_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n);
110#endif
111	if (n != 2) {
112		printf(": error getting register data\n");
113		return;
114	}
115	if (reg[0].len != 8 || reg[1].len != 2) {
116		printf(": weird register size (%lu/%lu, expected 8/2)\n",
117		    (unsigned long)reg[0].len, (unsigned long)reg[1].len);
118		return;
119	}
120
121	n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
122#ifdef _WDC_OFISA_MD_INTR_FIXUP
123	n = wdc_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
124#endif
125	if (n != 1) {
126		printf(": error getting interrupt data\n");
127		return;
128	}
129
130	bzero(&osc->sc_ad, sizeof osc->sc_ad);
131	osc->sc_ad.iot =
132	    (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
133	osc->sc_ad.auxiot =
134	    (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
135        if (bus_space_map(osc->sc_ad.iot, reg[0].addr, 8, 0,
136              &osc->sc_ad.ioh) ||
137            bus_space_map(osc->sc_ad.auxiot, reg[1].addr, 1, 0,
138	      &osc->sc_ad.auxioh)) {
139                printf(": can't map register spaces\n");
140		return;
141        }
142
143	osc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share,
144	    IPL_BIO, wdcintr, sc);
145
146	printf("\n");
147
148	wdcattach(sc, &osc->sc_ad);
149
150#if 0
151	printf("%s: registers: ", sc->sc_dev.dv_xname);
152	ofisa_reg_print(reg, 2);
153	printf("\n");
154	printf("%s: interrupts: ", sc->sc_dev.dv_xname);
155	ofisa_intr_print(&intr, 1);
156	printf("\n");
157#endif
158}
159