wdc_ofisa.c revision 1.7 
1/*	$NetBSD: wdc_ofisa.c,v 1.7 2001/11/13 07:29:45 lukem 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 1.7 2001/11/13 07:29:45 lukem 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
70struct cfattach wdc_ofisa_ca = {
71	sizeof(struct wdc_ofisa_softc), wdc_ofisa_probe, wdc_ofisa_attach
72};
73
74int
75wdc_ofisa_probe(parent, cf, aux)
76	struct device *parent;
77	struct cfdata *cf;
78	void *aux;
79{
80	struct ofisa_attach_args *aa = aux;
81	const char *compatible_strings[] = { "pnpPNP,600", NULL };
82	int rv = 0;
83
84	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
85		rv = 5;
86#ifdef _WDC_OFISA_MD_MATCH
87	if (!rv)
88		rv = wdc_ofisa_md_match(parent, cf, aux);
89#endif
90	return (rv);
91}
92
93void
94wdc_ofisa_attach(parent, self, aux)
95	struct device *parent, *self;
96	void *aux;
97{
98	struct wdc_ofisa_softc *sc = (void *)self;
99	struct ofisa_attach_args *aa = aux;
100	struct ofisa_reg_desc reg[2];
101	struct ofisa_intr_desc intr;
102	int n;
103
104	/*
105	 * We're living on an ofw.  We have to ask the OFW what our
106	 * registers and interrupts properties look like.
107	 *
108	 * We expect exactly two register regions and one interrupt.
109	 */
110
111	n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2);
112#ifdef _WDC_OFISA_MD_REG_FIXUP
113	n = wdc_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n);
114#endif
115	if (n != 2) {
116		printf(": error getting register data\n");
117		return;
118	}
119	if (reg[0].len != 8 || reg[1].len != 2) {
120		printf(": weird register size (%lu/%lu, expected 8/2)\n",
121		    (unsigned long)reg[0].len, (unsigned long)reg[1].len);
122		return;
123	}
124
125	n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
126#ifdef _WDC_OFISA_MD_INTR_FIXUP
127	n = wdc_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
128#endif
129	if (n != 1) {
130		printf(": error getting interrupt data\n");
131		return;
132	}
133
134	sc->wdc_channel.cmd_iot =
135	    (reg[0].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
136	sc->wdc_channel.ctl_iot =
137	    (reg[1].type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
138        if (bus_space_map(sc->wdc_channel.cmd_iot, reg[0].addr, 8, 0,
139              &sc->wdc_channel.cmd_ioh) ||
140            bus_space_map(sc->wdc_channel.ctl_iot, reg[1].addr, 1, 0,
141	      &sc->wdc_channel.ctl_ioh)) {
142                printf(": can't map register spaces\n");
143		return;
144        }
145
146	sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, intr.share,
147	    IPL_BIO, wdcintr, &sc->wdc_channel);
148
149	printf("\n");
150	sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16;
151	sc->wdc_chanptr = &sc->wdc_channel;
152	sc->sc_wdcdev.channels = &sc->wdc_chanptr;
153	sc->sc_wdcdev.nchannels = 1;
154	sc->wdc_channel.channel = 0;
155	sc->wdc_channel.wdc = &sc->sc_wdcdev;
156	sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue),
157	    M_DEVBUF, M_NOWAIT);
158	if (sc->wdc_channel.ch_queue == NULL) {
159	    printf("%s: can't allocate memory for command queue",
160		sc->sc_wdcdev.sc_dev.dv_xname);
161	    return;
162	}
163	wdcattach(&sc->wdc_channel);
164	wdc_print_modes(&sc->wdc_channel);
165
166#if 0
167	printf("%s: registers: ", sc->sc_dev.dv_xname);
168	ofisa_reg_print(reg, 2);
169	printf("\n");
170	printf("%s: interrupts: ", sc->sc_dev.dv_xname);
171	ofisa_intr_print(&intr, 1);
172	printf("\n");
173#endif
174}
175