1 /* $NetBSD: com_obio.c,v 1.12 2018/12/08 17:46:10 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
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 /*-
33 * Copyright (c) 1991 The Regents of the University of California.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 * @(#)com.c 7.5 (Berkeley) 5/16/91
61 */
62
63 #include <sys/cdefs.h>
64 __KERNEL_RCSID(0, "$NetBSD: com_obio.c,v 1.12 2018/12/08 17:46:10 thorpej Exp $");
65
66 #include <sys/param.h>
67 #include <sys/systm.h>
68 #include <sys/ioctl.h>
69 #include <sys/select.h>
70 #include <sys/tty.h>
71 #include <sys/proc.h>
72 #include <sys/conf.h>
73 #include <sys/file.h>
74 #include <sys/uio.h>
75 #include <sys/kernel.h>
76 #include <sys/syslog.h>
77 #include <sys/types.h>
78 #include <sys/device.h>
79 #include <sys/termios.h>
80
81 #include <sys/bus.h>
82 #include <machine/intr.h>
83
84 #include <dev/ic/comreg.h>
85 #include <dev/ic/comvar.h>
86
87 #include <dev/marvell/gtvar.h>
88
89 #include "locators.h"
90
91 struct com_obio_softc {
92 struct com_softc osc_com; /* real "com" softc */
93
94 /* OBIO-specific goo. */
95 };
96
97 static int com_obio_match (device_t, cfdata_t , void *);
98 static void com_obio_attach (device_t, device_t, void *);
99
100 CFATTACH_DECL_NEW(com_obio, sizeof(struct com_obio_softc),
101 com_obio_match, com_obio_attach, NULL, NULL);
102
103 int
com_obio_match(device_t parent,cfdata_t cf,void * aux)104 com_obio_match(device_t parent, cfdata_t cf, void *aux)
105 {
106 struct obio_attach_args *oa = aux;
107 bus_space_handle_t ioh;
108 int rv = 0;
109
110 if (oa->oa_offset == OBIOCF_OFFSET_DEFAULT ||
111 oa->oa_size == OBIOCF_SIZE_DEFAULT)
112 return (0);
113
114 if (com_is_console(oa->oa_memt, oa->oa_offset, NULL)) {
115 rv = 1;
116 } else {
117 if (bus_space_map(oa->oa_memt, oa->oa_offset,
118 oa->oa_size, 0, &ioh))
119 return (0);
120 rv = comprobe1(oa->oa_memt, ioh);
121 bus_space_unmap(oa->oa_memt, ioh, oa->oa_size);
122 }
123
124 return (rv);
125 }
126
127 void
com_obio_attach(device_t parent,device_t self,void * aux)128 com_obio_attach(device_t parent, device_t self, void *aux)
129 {
130 struct com_obio_softc *osc = device_private(self);
131 struct com_softc *sc = &osc->osc_com;
132 struct obio_attach_args *oa = aux;
133 bus_space_handle_t ioh;
134
135 sc->sc_dev = self;
136 sc->sc_frequency = COM_FREQ*2;
137
138 if (!com_is_console(oa->oa_memt, oa->oa_offset, &ioh) &&
139 bus_space_map(oa->oa_memt, oa->oa_offset, oa->oa_size,
140 0, &ioh) != 0) {
141 aprint_error(": can't map registers\n");
142 return;
143 }
144
145 com_init_regs(&sc->sc_regs, oa->oa_memt, ioh, oa->oa_offset);
146 sc->sc_regs.cr_nports = oa->oa_size;
147 com_attach_subr(sc);
148
149 if (oa->oa_irq >= 0) {
150 intr_establish(oa->oa_irq, IST_EDGE, IPL_SERIAL, comintr, sc);
151 aprint_normal_dev(self, "interrupting at %d\n", oa->oa_irq);
152 }
153 }
154