1 /* $NetBSD: com_supio.c,v 1.31 2018/12/08 17:46:09 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_supio.c,v 1.31 2018/12/08 17:46:09 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/bus.h>
80
81 #include <machine/intr.h>
82
83 /*#include <dev/isa/isavar.h>*/
84 #include <dev/ic/comreg.h>
85 #include <dev/ic/comvar.h>
86
87 #include <amiga/dev/supio.h>
88
89 struct comsupio_softc {
90 struct com_softc sc_com;
91 struct isr sc_isr;
92 };
93
94 int com_supio_match(device_t, cfdata_t , void *);
95 void com_supio_attach(device_t, device_t, void *);
96
97 CFATTACH_DECL_NEW(com_supio, sizeof(struct comsupio_softc),
98 com_supio_match, com_supio_attach, NULL, NULL);
99
100 int
com_supio_match(device_t parent,cfdata_t match,void * aux)101 com_supio_match(device_t parent, cfdata_t match, void *aux)
102 {
103 int rv = 1;
104 struct supio_attach_args *supa = aux;
105
106 if (strcmp(supa->supio_name,"com"))
107 return 0;
108
109 return (rv);
110 }
111
112 void
com_supio_attach(device_t parent,device_t self,void * aux)113 com_supio_attach(device_t parent, device_t self, void *aux)
114 {
115 struct comsupio_softc *sc = device_private(self);
116 struct com_softc *csc = &sc->sc_com;
117 int iobase;
118 bus_space_tag_t iot;
119 bus_space_handle_t ioh;
120 struct supio_attach_args *supa = aux;
121 #ifdef __m68k__
122 u_int16_t needpsl;
123 #endif
124
125 csc->sc_dev = self;
126
127 /*
128 * We're living on a superio chip.
129 */
130 iobase = supa->supio_iobase;
131 iot = supa->supio_iot;
132 aprint_normal(" port 0x%04x ipl %d", iobase, supa->supio_ipl);
133
134 if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh))
135 panic("comattach: io mapping failed");
136 com_init_regs(&csc->sc_regs, iot, ioh, iobase);
137
138 csc->sc_frequency = supa->supio_arg;
139 csc->sc_frequency /= 4; /* XXX IOBlix firmware sets MCR_PRESCALE? */
140
141 com_attach_subr(csc);
142
143 #ifdef __m68k__
144 /* XXX this should be really in the interrupt stuff */
145 needpsl = PSL_S | (supa->supio_ipl << 8);
146
147 if (ipl2spl_table[IPL_SERIAL] < needpsl) {
148 aprint_normal_dev(self, "raising ipl2spl_table[IPL_SERIAL] "
149 "from 0x%x to 0x%x\n", ipl2spl_table[IPL_SERIAL], needpsl);
150 ipl2spl_table[IPL_SERIAL] = needpsl;
151 }
152 #endif
153 sc->sc_isr.isr_intr = comintr;
154 sc->sc_isr.isr_arg = csc;
155 sc->sc_isr.isr_ipl = supa->supio_ipl;
156 add_isr(&sc->sc_isr);
157
158 if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) {
159 aprint_error_dev(self, "could not establish shutdown hook");
160 }
161 }
162