1 /*-
2 * Copyright (c) 2013 Takanori Watanabe
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 #include "opt_acpi.h"
29 #include <sys/param.h>
30 #include <sys/kernel.h>
31 #include <sys/bus.h>
32
33 #include <contrib/dev/acpica/include/acpi.h>
34
35 #include "acpi_if.h"
36 #include <sys/module.h>
37 #include <dev/acpica/acpivar.h>
38 #include <sys/sysctl.h>
39 static int sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS);
40
41 static struct acpi_rapidstart_name_list
42 {
43 char *nodename;
44 char *getmethod;
45 char *setmethod;
46 char *comment;
47 } acpi_rapidstart_oids[] ={
48 {"ffs","GFFS","SFFS","Flash Fast Store Flag"},
49 {"ftv","GFTV","SFTV","Time value"},
50 {NULL, NULL, NULL, NULL}
51 };
52
53 struct acpi_rapidstart_softc {
54 struct sysctl_ctx_list *sysctl_ctx;
55 struct sysctl_oid *sysctl_tree;
56
57 };
58 static char *rapidstart_ids[] = {"INT3392", NULL};
59 static int
acpi_rapidstart_probe(device_t dev)60 acpi_rapidstart_probe(device_t dev)
61 {
62 int rv;
63
64 if (acpi_disabled("rapidstart") ||
65 device_get_unit(dev) != 0)
66 return (ENXIO);
67 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, rapidstart_ids, NULL);
68 if (rv <= 0)
69 device_set_desc(dev, "Intel Rapid Start ACPI device");
70
71 return (rv);
72
73 }
74
75 static int
acpi_rapidstart_attach(device_t dev)76 acpi_rapidstart_attach(device_t dev)
77 {
78 struct acpi_rapidstart_softc *sc;
79 int i;
80
81 sc = device_get_softc(dev);
82
83 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
84 sc->sysctl_tree = device_get_sysctl_tree(dev);
85 for (i = 0 ; acpi_rapidstart_oids[i].nodename != NULL; i++){
86 if (acpi_rapidstart_oids[i].setmethod != NULL) {
87 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
88 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
89 i, acpi_rapidstart_oids[i].nodename,
90 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
91 dev, i, sysctl_acpi_rapidstart_gen_handler, "I",
92 acpi_rapidstart_oids[i].comment);
93 } else {
94 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
95 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
96 i, acpi_rapidstart_oids[i].nodename,
97 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
98 dev, i, sysctl_acpi_rapidstart_gen_handler, "I",
99 acpi_rapidstart_oids[i].comment);
100 }
101 }
102 return (0);
103 }
104
105 static int
sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS)106 sysctl_acpi_rapidstart_gen_handler(SYSCTL_HANDLER_ARGS)
107 {
108 device_t dev = arg1;
109 int function = oidp->oid_arg2;
110 int error = 0, val;
111
112 acpi_GetInteger(acpi_get_handle(dev),
113 acpi_rapidstart_oids[function].getmethod, &val);
114 error = sysctl_handle_int(oidp, &val, 0, req);
115 if (error || !req->newptr || !acpi_rapidstart_oids[function].setmethod)
116 return (error);
117 acpi_SetInteger(acpi_get_handle(dev),
118 acpi_rapidstart_oids[function].setmethod, val);
119 return (0);
120 }
121
122 static device_method_t acpi_rapidstart_methods[] = {
123 /* Device interface */
124 DEVMETHOD(device_probe, acpi_rapidstart_probe),
125 DEVMETHOD(device_attach, acpi_rapidstart_attach),
126
127 DEVMETHOD_END
128 };
129
130 static driver_t acpi_rapidstart_driver = {
131 "acpi_rapidstart",
132 acpi_rapidstart_methods,
133 sizeof(struct acpi_rapidstart_softc),
134 };
135
136 DRIVER_MODULE(acpi_rapidstart, acpi, acpi_rapidstart_driver, 0, 0);
137 MODULE_DEPEND(acpi_rapidstart, acpi, 1, 1, 1);
138