1 /* $NetBSD: ug_isa.c,v 1.10 2022/09/25 17:09:36 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2007 Mihai Chelaru <kefren@netbsd.ro>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 /*
29 * Driver for Abit uGuru (interface is inspired from it.c and nslm7x.c)
30 * Inspired by olle sandberg linux driver as Abit didn't care to release docs
31 * Support for uGuru 2005 from Louis Kruger and Hans de Goede linux driver
32 */
33
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: ug_isa.c,v 1.10 2022/09/25 17:09:36 thorpej Exp $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/proc.h>
41 #include <sys/device.h>
42 #include <sys/errno.h>
43 #include <sys/conf.h>
44 #include <sys/envsys.h>
45 #include <sys/time.h>
46
47 #include <sys/bus.h>
48 #include <sys/intr.h>
49
50 #include <dev/isa/isareg.h>
51 #include <dev/isa/isavar.h>
52
53 #include <dev/sysmon/sysmonvar.h>
54
55 #include <dev/ic/ugreg.h>
56 #include <dev/ic/ugvar.h>
57
58 /* autoconf(9) functions */
59 static int ug_isa_match(device_t, cfdata_t, void *);
60 static void ug_isa_attach(device_t, device_t, void *);
61 static int ug_isa_detach(device_t, int);
62
63 CFATTACH_DECL_NEW(ug_isa, sizeof(struct ug_softc),
64 ug_isa_match, ug_isa_attach, ug_isa_detach, NULL);
65
66 extern uint8_t ug_ver;
67
68 static int
ug_isa_match(device_t parent,cfdata_t match,void * aux)69 ug_isa_match(device_t parent, cfdata_t match, void *aux)
70 {
71 struct isa_attach_args *ia = aux;
72 bus_space_handle_t bsh;
73 uint8_t valc, vald;
74
75 if (ia->ia_nio < 1) /* need base addr */
76 return 0;
77
78 if (ISA_DIRECT_CONFIG(ia))
79 return 0;
80
81 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
82 return 0;
83
84 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 8, 0, &bsh))
85 return 0;
86
87 valc = bus_space_read_1(ia->ia_iot, bsh, UG_CMD);
88 vald = bus_space_read_1(ia->ia_iot, bsh, UG_DATA);
89
90 ug_ver = 0;
91
92 /* Check for uGuru 2003 */
93
94 if (((vald == 0) || (vald == 8)) && (valc == 0xAC))
95 ug_ver = 1;
96
97 /* Check for uGuru 2005 */
98 if (ug2_sync(ia->ia_iot, bsh) == 1)
99 ug_ver = 2;
100
101 /* unmap, prepare ia and bye */
102 bus_space_unmap(ia->ia_iot, bsh, 8);
103
104 if (ug_ver != 0) {
105 ia->ia_nio = 1;
106 ia->ia_io[0].ir_size = 8;
107 ia->ia_niomem = 0;
108 ia->ia_nirq = 0;
109 ia->ia_ndrq = 0;
110 return 1;
111 }
112
113 return 0;
114
115 }
116
117 static void
ug_isa_attach(device_t parent,device_t self,void * aux)118 ug_isa_attach(device_t parent, device_t self, void *aux)
119 {
120 struct ug_softc *sc = device_private(self);
121 struct isa_attach_args *ia = aux;
122 int i;
123
124 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr,
125 8, 0, &sc->sc_ioh)) {
126 aprint_error(": can't map i/o space\n");
127 return;
128 }
129
130 ia->ia_iot = sc->sc_iot;
131 sc->version = ug_ver;
132
133 if (sc->version == 2) {
134 ug2_attach(self);
135 return;
136 }
137
138 aprint_normal(": Abit uGuru system monitor\n");
139
140 if (!ug_reset(sc))
141 aprint_error_dev(self, "reset failed.\n");
142
143 ug_setup_sensors(sc);
144 sc->sc_sme = sysmon_envsys_create();
145
146 for (i = 0; i < UG_NUM_SENSORS; i++) {
147 if (sysmon_envsys_sensor_attach(sc->sc_sme,
148 &sc->sc_sensor[i])) {
149 sysmon_envsys_destroy(sc->sc_sme);
150 sc->sc_sme = NULL;
151 goto out;
152 }
153 }
154
155 sc->sc_sme->sme_cookie = sc;
156 sc->sc_sme->sme_refresh = ug_refresh;
157
158 if (sysmon_envsys_register(sc->sc_sme)) {
159 aprint_error_dev(self, "unable to register with sysmon\n");
160 sysmon_envsys_destroy(sc->sc_sme);
161 sc->sc_sme = NULL;
162 goto out;
163 }
164
165 return;
166
167 out:
168 bus_space_unmap(sc->sc_iot, sc->sc_ioh, 8);
169
170 }
171
172 static int
ug_isa_detach(device_t self,int flags)173 ug_isa_detach(device_t self, int flags)
174 {
175 struct ug_softc *sc = device_private(self);
176
177 if (sc->sc_sme != NULL)
178 sysmon_envsys_unregister(sc->sc_sme);
179 bus_space_unmap(sc->sc_iot, sc->sc_ioh, 8);
180 return 0;
181 }
182
183