1 /* $NetBSD: xmi.c,v 1.13 2021/08/07 16:19:17 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed at Ludd, University of
17 * Lule}, Sweden and its contributors.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * XMI specific routines.
35 */
36
37 #include <sys/cdefs.h>
38 __KERNEL_RCSID(0, "$NetBSD: xmi.c,v 1.13 2021/08/07 16:19:17 thorpej Exp $");
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/device.h>
43
44 #include <sys/bus.h>
45 #include <sys/cpu.h>
46
47 #include <dev/xmi/xmireg.h>
48 #include <dev/xmi/xmivar.h>
49
50 static int xmi_print(void *, const char *);
51
52 const struct xmi_list xmi_list[] = {
53 {XMIDT_KA62, 0, "ka6200"},
54 {XMIDT_KA64, 1, "ka6400"},
55 {XMIDT_KA65, 0, "ka6500"},
56 {XMIDT_KA66, 0, "ka6600"},
57 {XMIDT_MS62, 1, "ms62"},
58 {XMIDT_DWMBA, 1, "dwmba"},
59 {0,0,0}
60 };
61
62 int
xmi_print(void * aux,const char * name)63 xmi_print(void *aux, const char *name)
64 {
65 struct xmi_attach_args * const xa = aux;
66 const struct xmi_list *xl;
67
68 for (xl = &xmi_list[0]; xl->xl_nr; xl++)
69 if (xl->xl_nr == bus_space_read_2(xa->xa_iot, xa->xa_ioh, 0))
70 break;
71
72 if (name) {
73 if (xl->xl_nr == 0)
74 aprint_normal("unknown device 0x%x",
75 bus_space_read_2(xa->xa_iot, xa->xa_ioh, 0));
76 else
77 aprint_normal(xl->xl_name);
78 aprint_normal(" at %s", name);
79 }
80 aprint_normal(" node %d", xa->xa_nodenr);
81 return xl->xl_havedriver ? UNCONF : UNSUPP;
82 }
83
84 static int lastiv = 0;
85
86 void
xmi_attach(struct xmi_softc * sc)87 xmi_attach(struct xmi_softc *sc)
88 {
89 struct xmi_attach_args xa;
90 int nodenr;
91
92 aprint_normal("\n");
93
94 xa.xa_iot = sc->sc_iot;
95 xa.xa_busnr = sc->sc_busnr;
96 xa.xa_dmat = sc->sc_dmat;
97 xa.xa_intcpu = sc->sc_intcpu;
98 /*
99 * Interrupt numbers. All vectors from 256-512 are free, use
100 * them for XMI devices and just count them up.
101 * Above 512 are only interrupt vectors for unibus devices.
102 *
103 * The XMI nodespace is giant in size. Only map in the first
104 * page here and map more (if needed) in the device itself.
105 */
106 for (nodenr = 0; nodenr < NNODEXMI; nodenr++) {
107 if (bus_space_map(sc->sc_iot, sc->sc_addr + XMI_NODE(nodenr),
108 PAGE_SIZE, 0, &xa.xa_ioh)) {
109 aprint_error_dev(sc->sc_dev,
110 "bus_space_map failed, node %d\n", nodenr);
111 return;
112 }
113 if (badaddr((void *)xa.xa_ioh, 4)) {
114 bus_space_unmap(sc->sc_iot, xa.xa_ioh, PAGE_SIZE);
115 continue;
116 }
117 xa.xa_nodenr = nodenr;
118 xa.xa_ivec = 256 + lastiv;
119 lastiv += 4;
120 config_found(sc->sc_dev, &xa, xmi_print, CFARGS_NONE);
121 }
122 }
123