1 /* $NetBSD: com_pnpbios.c,v 1.16 2018/12/08 17:46:11 thorpej Exp $ */
2 /*
3 * Copyright (c) 1999
4 * Matthias Drochner. 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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: com_pnpbios.c,v 1.16 2018/12/08 17:46:11 thorpej Exp $");
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/errno.h>
34 #include <sys/ioctl.h>
35 #include <sys/syslog.h>
36 #include <sys/device.h>
37 #include <sys/proc.h>
38 #include <sys/termios.h>
39
40 #include <sys/bus.h>
41
42 #include <dev/isa/isavar.h>
43 #include <dev/isa/isadmavar.h>
44
45 #include <i386/pnpbios/pnpbiosvar.h>
46
47 #include <dev/ic/comvar.h>
48
49 struct com_pnpbios_softc {
50 struct com_softc sc_com;
51 void *sc_ih;
52 };
53
54 int com_pnpbios_match(device_t, cfdata_t , void *);
55 void com_pnpbios_attach(device_t, device_t, void *);
56
57 CFATTACH_DECL_NEW(com_pnpbios, sizeof(struct com_pnpbios_softc),
58 com_pnpbios_match, com_pnpbios_attach, NULL, NULL);
59
60 int
com_pnpbios_match(device_t parent,cfdata_t match,void * aux)61 com_pnpbios_match(device_t parent, cfdata_t match, void *aux)
62 {
63 struct pnpbiosdev_attach_args *aa = aux;
64
65 if (strcmp(aa->idstr, "PNP0500") &&
66 strcmp(aa->idstr, "PNP0501") &&
67 strcmp(aa->idstr, "PNP0510") &&
68 strcmp(aa->idstr, "PNP0511"))
69 return (0);
70
71 return (1);
72 }
73
74 void
com_pnpbios_attach(device_t parent,device_t self,void * aux)75 com_pnpbios_attach(device_t parent, device_t self, void *aux)
76 {
77 struct com_pnpbios_softc *psc = device_private(self);
78 struct com_softc *sc = &psc->sc_com;
79 struct pnpbiosdev_attach_args *aa = aux;
80 bus_space_tag_t iot;
81 bus_space_handle_t ioh;
82 int iobase;
83
84 sc->sc_dev = self;
85
86 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) {
87 aprint_error(": can't get iobase\n");
88 return;
89 }
90
91 if ((!com_is_console(iot, iobase, &ioh)) &&
92 pnpbios_io_map(aa->pbt, aa->resc, 0, &iot, &ioh)) {
93 aprint_error(": can't map i/o space\n");
94 return;
95 }
96
97 com_init_regs(&sc->sc_regs, iot, ioh, iobase);
98
99 aprint_normal("\n");
100 pnpbios_print_devres(self, aa);
101
102 aprint_normal("%s", device_xname(self));
103
104 /*
105 * if the chip isn't something we recognise skip it.
106 */
107 if (com_probe_subr(&sc->sc_regs) == 0) {
108 aprint_error(": com probe failed\n");
109 return;
110 }
111
112 sc->sc_frequency = 115200 * 16;
113
114 com_attach_subr(sc);
115
116 psc->sc_ih = pnpbios_intr_establish(aa->pbt, aa->resc, 0, IPL_SERIAL,
117 comintr, sc);
118 }
119