tcbus.c revision 1.25 
1/*	$NetBSD: tcbus.c,v 1.25 2009/03/16 23:11:14 dsl Exp $	*/
2
3/*-
4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tohru Nishimura.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: tcbus.c,v 1.25 2009/03/16 23:11:14 dsl Exp $");
34
35/*
36 * Which system models were configured?
37 */
38#include "opt_dec_3max.h"
39#include "opt_dec_3min.h"
40#include "opt_dec_maxine.h"
41#include "opt_dec_3maxplus.h"
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/device.h>
46
47#include <machine/autoconf.h>
48#include <machine/sysconf.h>
49
50#define	_PMAX_BUS_DMA_PRIVATE
51#include <machine/bus.h>
52
53#include <dev/tc/tcvar.h>
54#include <pmax/pmax/pmaxtype.h>
55
56static const struct evcnt *tc_ds_intr_evcnt(struct device *, void *);
57static void	tc_ds_intr_establish(struct device *, void *,
58				int, int (*)(void *), void *);
59static void	tc_ds_intr_disestablish(struct device *, void *);
60static bus_dma_tag_t tc_ds_get_dma_tag(int);
61
62extern struct tcbus_attach_args kn02_tc_desc[];	/* XXX */
63extern struct tcbus_attach_args kmin_tc_desc[];	/* XXX */
64extern struct tcbus_attach_args xine_tc_desc[];	/* XXX */
65extern struct tcbus_attach_args kn03_tc_desc[];	/* XXX */
66
67static int	tcbus_match(struct device *, struct cfdata *, void *);
68static void	tcbus_attach(struct device *, struct device *, void *);
69
70CFATTACH_DECL(tcbus, sizeof(struct tc_softc),
71    tcbus_match, tcbus_attach, NULL, NULL);
72
73static int tcbus_found;
74
75static int
76tcbus_match(struct device *parent, struct cfdata *cfdata, void *aux)
77{
78	struct mainbus_attach_args *ma = aux;
79
80	if (tcbus_found || strcmp(ma->ma_name, "tcbus"))
81		return 0;
82
83	return 1;
84}
85
86static void
87tcbus_attach(struct device *parent, struct device *self, void *aux)
88{
89	struct tcbus_attach_args *tba;
90
91	tcbus_found = 1;
92
93	switch (systype) {
94#ifdef DEC_3MAX
95	case DS_3MAX:
96		tba = &kn02_tc_desc[0]; break;
97#endif
98#ifdef DEC_3MIN
99	case DS_3MIN:
100		tba = &kmin_tc_desc[0]; break;
101#endif
102#ifdef DEC_MAXINE
103	case DS_MAXINE:
104		tba = &xine_tc_desc[0]; break;
105#endif
106#ifdef DEC_3MAXPLUS
107	case DS_3MAXPLUS:
108		tba = &kn03_tc_desc[0]; break;
109#endif
110	default:
111		panic("tcbus_attach: no TURBOchannel configured for systype = %d", systype);
112	}
113
114	tba->tba_busname = "tc";
115	tba->tba_memt = 0;
116	tba->tba_intr_evcnt = tc_ds_intr_evcnt;
117	tba->tba_intr_establish = tc_ds_intr_establish;
118	tba->tba_intr_disestablish = tc_ds_intr_disestablish;
119	tba->tba_get_dma_tag = tc_ds_get_dma_tag;
120
121	tcattach(parent, self, tba);
122}
123
124/*
125 * Dispatch to model specific interrupt line evcnt fetch rontine
126 */
127static const struct evcnt *
128tc_ds_intr_evcnt(struct device *dev, void *cookie)
129{
130
131	/* XXX for now, no evcnt parent reported */
132	return NULL;
133}
134
135/*
136 * Dispatch to model specific interrupt establishing routine
137 */
138static void
139tc_ds_intr_establish(struct device *dev, void *cookie, int level, int (*handler)(void *), void *val)
140{
141
142	(*platform.intr_establish)(dev, cookie, level, handler, val);
143}
144
145static void
146tc_ds_intr_disestablish(struct device *dev, void *arg)
147{
148
149	printf("cannot disestablish TC interrupts\n");
150}
151
152/*
153 * Return the DMA tag for use by the specified TURBOchannel slot.
154 */
155static bus_dma_tag_t
156tc_ds_get_dma_tag(int slot)
157{
158	/*
159	 * All DECstations use the default DMA tag.
160	 */
161	return (&pmax_default_bus_dma_tag);
162}
163
164#include "wsdisplay.h"
165
166#if NWSDISPLAY > 0
167
168#include "sfb.h"
169/* #include "sfbp.h" */
170#include "cfb.h"
171#include "mfb.h"
172#include "tfb.h"
173#include "xcfb.h"
174#include "px.h"
175#include "pxg.h"
176
177#include <pmax/pmax/cons.h>
178#include <machine/dec_prom.h>
179
180int	tc_checkslot(tc_addr_t, char *);
181
182struct cnboards {
183	const char	*cb_tcname;
184	void	(*cb_cnattach)(tc_addr_t);
185} static const cnboards[] = {
186#if NXCFB > 0
187	{ "PMAG-DV ", xcfb_cnattach },
188#endif
189#if NSFB > 0
190	{ "PMAGB-BA", sfb_cnattach },
191#endif
192#if NSFBP > 0
193	{ "PMAGD   ", sfbp_cnattach },
194#endif
195#if NCFB > 0
196	{ "PMAG-BA ", cfb_cnattach },
197#endif
198#if NMFB > 0
199	{ "PMAG-AA ", mfb_cnattach },
200#endif
201#if NTFB > 0
202	{ "PMAG-JA ", tfb_cnattach },
203#endif
204#if NPX > 0
205	{ "PMAG-CA ", px_cnattach },
206#endif
207#if NPXG > 0
208	{ "PMAG-DA ", pxg_cnattach },
209	{ "PMAG-FA ", pxg_cnattach },
210	{ "PMAG-FB ", pxg_cnattach },
211	{ "PMAGB-FA", pxg_cnattach },
212	{ "PMAGB-FB", pxg_cnattach },
213#endif
214};
215
216int
217tcfb_cnattach(int slotno)
218{
219	paddr_t tcaddr;
220	char tcname[TC_ROM_LLEN];
221	int i;
222
223	tcaddr = (*callv->_slot_address)(slotno);
224	if (tc_badaddr(tcaddr) || tc_checkslot(tcaddr, tcname) == 0)
225		panic("TC console designated by PROM does not exist!?");
226
227	for (i = 0; i < sizeof(cnboards) / sizeof(cnboards[0]); i++)
228		if (strncmp(tcname, cnboards[i].cb_tcname, TC_ROM_LLEN) == 0)
229			break;
230
231	if (i == sizeof(cnboards) / sizeof(cnboards[0]))
232		return (0);
233
234	(cnboards[i].cb_cnattach)((tc_addr_t)TC_PHYS_TO_UNCACHED(tcaddr));
235	return (1);
236}
237
238#endif	/* NWSDISPLAY */
239