wdc_ofisa.c revision 1.10 
1/*	$NetBSD: wdc_ofisa.c,v 1.10 2002/09/30 22:08:02 thorpej 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/cdefs.h>
41__KERNEL_RCSID(0, "$NetBSD: wdc_ofisa.c,v 1.10 2002/09/30 22:08:02 thorpej Exp $");
42
43#include <sys/param.h>
44#include <sys/device.h>
45#include <sys/systm.h>
46#include <sys/tty.h>
47#include <sys/malloc.h>
48
49#include <machine/intr.h>
50#include <machine/bus.h>
51
52#include <dev/ofw/openfirm.h>
53#include <dev/isa/isavar.h>
54#include <dev/ofisa/ofisavar.h>
55
56#include <dev/ic/wdcreg.h>		/* ??? */
57#include <dev/ata/atavar.h>
58#include <dev/ic/wdcvar.h>
59
60struct wdc_ofisa_softc {
61	struct wdc_softc sc_wdcdev;
62	struct	channel_softc *wdc_chanptr;
63	struct  channel_softc wdc_channel;
64	void	*sc_ih;
65};
66
67int wdc_ofisa_probe __P((struct device *, struct cfdata *, void *));
68void wdc_ofisa_attach __P((struct device *, struct device *, void *));
69
70CFATTACH_DECL(wdc_ofisa, sizeof(struct wdc_ofisa_softc),
71    wdc_ofisa_probe, wdc_ofisa_attach, NULL, NULL)
72
73int
74wdc_ofisa_probe(parent, cf, aux)
75	struct device *parent;
76	struct cfdata *cf;
77	void *aux;
78{
79	struct ofisa_attach_args *aa = aux;
80	static const char *const compatible_strings[] = { "pnpPNP,600", NULL };
81	int rv = 0;
82
83	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
84		rv = 5;
85#ifdef _WDC_OFISA_MD_MATCH
86	if (!rv)
87		rv = wdc_ofisa_md_match(parent, cf, aux);
88#endif
89	return (rv);
90}
91
92void
93wdc_ofisa_attach(parent, self, aux)
94	struct device *parent, *self;
95	void *aux;
96{
97	struct wdc_ofisa_softc *sc = (void *)self;
98	struct ofisa_attach_args *aa = aux;
99	struct ofisa_reg_desc reg[2];
100	struct ofisa_intr_desc intr;
101	int n;
102
103	/*
104	 * We're living on an ofw.  We have to ask the OFW what our
105	 * registers and interrupts properties look like.
106	 *
107	 * We expect exactly two register regions and one interrupt.
108	 */
109
110	n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2);
111#ifdef _WDC_OFISA_MD_REG_FIXUP
112	n = wdc_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n);
113#endif
114	if (n != 2) {
115		printf(": error getting register data\n");
116		return;
117	}
118	if (reg[0].len != 8 || reg[1].len != 2) {
119		printf(": weird register size (%lu/%lu, expected 8/2)\n",
120		    (unsigned long)reg[0].len, (unsigned long)reg[1].len);
121		return;
122	}
123
124	n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
125#ifdef _WDC_OFISA_MD_INTR_FIXUP
126	n = wdc_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
127#endif
128	if (n != 1) {
129		printf(": error getting interrupt data\n");
130		return;
131	}
132
133	sc->wdc_channel.cmd_iot =
134	    (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
135	sc->wdc_channel.ctl_iot =
136	    (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
137        if (bus_space_map(sc->wdc_channel.cmd_iot, reg[0].addr, 8, 0,
138              &sc->wdc_channel.cmd_ioh) ||
139            bus_space_map(sc->wdc_channel.ctl_iot, reg[1].addr, 1, 0,
140	      &sc->wdc_channel.ctl_ioh)) {
141                printf(": can't map register spaces\n");
142		return;
143        }
144
145	sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share,
146	    IPL_BIO, wdcintr, &sc->wdc_channel);
147
148	printf("\n");
149	sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16;
150	sc->wdc_chanptr = &sc->wdc_channel;
151	sc->sc_wdcdev.channels = &sc->wdc_chanptr;
152	sc->sc_wdcdev.nchannels = 1;
153	sc->wdc_channel.channel = 0;
154	sc->wdc_channel.wdc = &sc->sc_wdcdev;
155	sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue),
156	    M_DEVBUF, M_NOWAIT);
157	if (sc->wdc_channel.ch_queue == NULL) {
158	    printf("%s: can't allocate memory for command queue",
159		sc->sc_wdcdev.sc_dev.dv_xname);
160	    return;
161	}
162	wdcattach(&sc->wdc_channel);
163	wdc_print_modes(&sc->wdc_channel);
164
165#if 0
166	printf("%s: registers: ", sc->sc_dev.dv_xname);
167	ofisa_reg_print(reg, 2);
168	printf("\n");
169	printf("%s: interrupts: ", sc->sc_dev.dv_xname);
170	ofisa_intr_print(&intr, 1);
171	printf("\n");
172#endif
173}
174