mca.c revision 1.6 1 /* $NetBSD: mca.c,v 1.6 2001/11/13 07:46:26 lukem Exp $ */
2
3 /*-
4 * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
5 * Copyright (c) 1996-1999 Scott D. Telford.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Scott Telford <s.telford (at) ed.ac.uk>.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /*
41 * MCA Bus device
42 */
43
44 #include <sys/cdefs.h>
45 __KERNEL_RCSID(0, "$NetBSD: mca.c,v 1.6 2001/11/13 07:46:26 lukem Exp $");
46
47 #include "opt_mcaverbose.h"
48
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/device.h>
52
53 #include <machine/bus.h>
54
55 #include <dev/mca/mcareg.h>
56 #include <dev/mca/mcavar.h>
57 #include <dev/mca/mcadevs.h>
58
59 int mca_match __P((struct device *, struct cfdata *, void *));
60 void mca_attach __P((struct device *, struct device *, void *));
61
62 struct cfattach mca_ca = {
63 sizeof(struct device), mca_match, mca_attach
64 };
65
66 int mca_submatch __P((struct device *, struct cfdata *, void *));
67 int mca_print __P((void *, const char *));
68
69 int
70 mca_match(parent, cf, aux)
71 struct device *parent;
72 struct cfdata *cf;
73 void *aux;
74 {
75 struct mcabus_attach_args *mba = aux;
76
77 if (strcmp(mba->mba_busname, cf->cf_driver->cd_name))
78 return (0);
79
80 /* sanity (only mca0 supported currently) */
81 if (mba->mba_bus < 0 || mba->mba_bus > 0)
82 return (0);
83
84 /* XXX check other indicators? */
85
86 return (1);
87 }
88
89 int
90 mca_print(aux, pnp)
91 void *aux;
92 const char *pnp;
93 {
94 register struct mca_attach_args *ma = aux;
95 char devinfo[256];
96
97 if (pnp) {
98 mca_devinfo(ma->ma_id, devinfo);
99 printf("%s slot %d: %s", pnp, ma->ma_slot + 1, devinfo);
100 }
101
102 /*
103 * Print "configured" for Memory Extension boards - there is no
104 * meaningfull driver for them, they "just work".
105 */
106 switch(ma->ma_id) {
107 case MCA_PRODUCT_HRAM: case MCA_PRODUCT_IQRAM: case MCA_PRODUCT_MICRAM:
108 case MCA_PRODUCT_ASTRAM: case MCA_PRODUCT_KINGRAM:
109 case MCA_PRODUCT_KINGRAM8: case MCA_PRODUCT_KINGRAM16:
110 case MCA_PRODUCT_KINGRAM609: case MCA_PRODUCT_HYPRAM:
111 case MCA_PRODUCT_QRAM1: case MCA_PRODUCT_QRAM2: case MCA_PRODUCT_EVERAM:
112 case MCA_PRODUCT_BOCARAM: case MCA_PRODUCT_IBMRAM1:
113 case MCA_PRODUCT_IBMRAM2: case MCA_PRODUCT_IBMRAM3:
114 case MCA_PRODUCT_IBMRAM4: case MCA_PRODUCT_IBMRAM5:
115 case MCA_PRODUCT_IBMRAM6: case MCA_PRODUCT_IBMRAM7:
116 printf(": configured\n");
117 return (QUIET);
118 default:
119 return (UNCONF);
120 }
121 }
122
123 int
124 mca_submatch(parent, cf, aux)
125 struct device *parent;
126 struct cfdata *cf;
127 void *aux;
128 {
129 struct mca_attach_args *ma = aux;
130
131 if (cf->mcacf_slot != MCA_UNKNOWN_SLOT &&
132 cf->mcacf_slot != ma->ma_slot)
133 return 0;
134 return ((*cf->cf_attach->ca_match)(parent, cf, aux));
135 }
136
137 void
138 mca_attach(parent, self, aux)
139 struct device *parent, *self;
140 void *aux;
141 {
142 struct mcabus_attach_args *mba = aux;
143 bus_space_tag_t iot, memt;
144 bus_dma_tag_t dmat;
145 mca_chipset_tag_t mc;
146 int slot;
147
148 mca_attach_hook(parent, self, mba);
149 printf("\n");
150
151 iot = mba->mba_iot;
152 memt = mba->mba_memt;
153 mc = mba->mba_mc;
154 dmat = mba->mba_dmat;
155
156 /*
157 * Search for and attach subdevices.
158 *
159 * NB: In the adapter setup register, slots are numbered from 0,
160 * but officially they are numbered from 1.
161 * We use the former convention internally and the latter for text
162 * messages and in config files.
163 */
164
165 for (slot = 0; slot < MCA_MAX_SLOTS; slot++) {
166 struct mca_attach_args ma;
167 int reg;
168
169 ma.ma_iot = iot;
170 ma.ma_memt = memt;
171 ma.ma_dmat = dmat;
172 ma.ma_mc = mc;
173 ma.ma_slot = slot;
174
175 for(reg = 0; reg < 8; reg++)
176 ma.ma_pos[reg]=mca_conf_read(mc, slot, reg);
177
178 ma.ma_id = ma.ma_pos[0] + (ma.ma_pos[1] << 8);
179 if (ma.ma_id == 0xffff) /* no adapter here */
180 continue;
181
182 if (ma.ma_pos[2] & MCA_POS2_ENABLE
183 || mca_match_disabled(ma.ma_id))
184 config_found_sm(self, &ma, mca_print, mca_submatch);
185 else {
186 mca_print(&ma, self->dv_xname);
187 printf(" disabled\n");
188 }
189 }
190 }
191