1 /* $NetBSD: pwctl.c,v 1.20 2012/10/27 17:18:17 chs Exp $ */
2
3 /*-
4 * Copyright (c) 1999-2001
5 * TAKEMURA Shin and PocketBSD Project. All rights reserved.
6 * Copyright (c) 2000,2001
7 * SATO Kazumi. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the PocketBSD project
20 * and its contributors.
21 * 4. Neither the name of the project nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: pwctl.c,v 1.20 2012/10/27 17:18:17 chs Exp $");
41
42 #ifdef _KERNEL_OPT
43 #include "opt_pwctl.h"
44 #endif
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/device.h>
49 #include <sys/reboot.h>
50
51 #include <sys/bus.h>
52 #include <machine/config_hook.h>
53 #include <machine/platid.h>
54 #include <machine/platid_mask.h>
55
56 #include <dev/hpc/hpciovar.h>
57
58 #include "locators.h"
59
60 #ifdef PWCTLDEBUG
61 #ifndef PWCTLDEBUG_CONF
62 #define PWCTLDEBUG_CONF 0
63 #endif
64 int pwctl_debug = PWCTLDEBUG_CONF;
65 #define DPRINTF(arg) if (pwctl_debug) printf arg;
66 #define VPRINTF(arg) if (bootverbose) printf arg;
67 #else
68 #define DPRINTF(arg)
69 #define VPRINTF(arg) if (bootverbose) printf arg;
70 #endif
71
72 struct pwctl_softc {
73 hpcio_chip_t sc_hc;
74 int sc_port;
75 long sc_id;
76 int sc_on, sc_off;
77 config_hook_tag sc_hook_tag;
78 config_hook_tag sc_hook_hardpower;
79 config_hook_tag sc_ghook_tag;
80 int sc_save;
81 int sc_initvalue;
82 };
83
84 static int pwctl_match(device_t, cfdata_t, void *);
85 static void pwctl_attach(device_t, device_t, void *);
86 static int pwctl_hook(void *, int, long, void *);
87 static int pwctl_ghook(void *, int, long, void *);
88 int pwctl_hardpower(void *, int, long, void *);
89
90 CFATTACH_DECL_NEW(pwctl, sizeof(struct pwctl_softc),
91 pwctl_match, pwctl_attach, NULL, NULL);
92
93 int
pwctl_match(device_t parent,cfdata_t match,void * aux)94 pwctl_match(device_t parent, cfdata_t match, void *aux)
95 {
96 struct hpcio_attach_args *haa = aux;
97 platid_mask_t mask;
98
99 if (strcmp(haa->haa_busname, HPCIO_BUSNAME))
100 return (0);
101 if (match->cf_loc[HPCIOIFCF_PLATFORM] == 0)
102 return (0);
103 mask = PLATID_DEREF(match->cf_loc[HPCIOIFCF_PLATFORM]);
104 if (!platid_match(&platid, &mask))
105 return (0);
106 return (1);
107 }
108
109 void
pwctl_attach(device_t parent,device_t self,void * aux)110 pwctl_attach(device_t parent, device_t self, void *aux)
111 {
112 struct hpcio_attach_args *haa = aux;
113 int *loc;
114 struct pwctl_softc *sc = device_private(self);
115
116 loc = device_cfdata(self)->cf_loc;
117 sc->sc_hc = (*haa->haa_getchip)(haa->haa_sc, loc[HPCIOIFCF_IOCHIP]);
118 sc->sc_port = loc[HPCIOIFCF_PORT];
119 sc->sc_id = loc[HPCIOIFCF_ID];
120 sc->sc_on = loc[HPCIOIFCF_ACTIVE] ? 1 : 0;
121 sc->sc_off = loc[HPCIOIFCF_ACTIVE] ? 0 : 1;
122 sc->sc_initvalue = loc[HPCIOIFCF_INITVALUE];
123
124 printf(" port=%d id=%ld on=%d%s",
125 sc->sc_port, sc->sc_id, sc->sc_on,
126 sc->sc_initvalue == -1 ? "" :
127 sc->sc_initvalue ? " init=on" : " init=off");
128
129 if (sc->sc_port == HPCIOIFCF_PORT_DEFAULT ||
130 sc->sc_id == HPCIOIFCF_ID_DEFAULT) {
131 printf(" (ignored)");
132 } else {
133 sc->sc_hook_tag = config_hook(CONFIG_HOOK_POWERCONTROL,
134 sc->sc_id, CONFIG_HOOK_SHARE, pwctl_hook, sc);
135 sc->sc_ghook_tag = config_hook(CONFIG_HOOK_GET,
136 sc->sc_id, CONFIG_HOOK_SHARE, pwctl_ghook, sc);
137 sc->sc_hook_hardpower = config_hook(CONFIG_HOOK_PMEVENT,
138 CONFIG_HOOK_PMEVENT_HARDPOWER, CONFIG_HOOK_SHARE,
139 pwctl_hardpower, sc);
140 }
141
142 if (sc->sc_initvalue != -1)
143 hpcio_portwrite(sc->sc_hc, sc->sc_port,
144 sc->sc_initvalue ? sc->sc_on : sc->sc_off);
145 printf("\n");
146 }
147
148 int
pwctl_hook(void * ctx,int type,long id,void * msg)149 pwctl_hook(void *ctx, int type, long id, void *msg)
150 {
151 struct pwctl_softc *sc = ctx;
152
153 DPRINTF(("pwctl hook: port %d %s(%d)", sc->sc_port,
154 msg ? "ON" : "OFF", msg ? sc->sc_on : sc->sc_off));
155 hpcio_portwrite(sc->sc_hc, sc->sc_port,
156 msg ? sc->sc_on : sc->sc_off);
157
158 return (0);
159 }
160
161 int
pwctl_ghook(void * ctx,int type,long id,void * msg)162 pwctl_ghook(void *ctx, int type, long id, void *msg)
163 {
164 struct pwctl_softc *sc = ctx;
165
166 if (CONFIG_HOOK_VALUEP(msg))
167 return (1);
168
169 *(int*)msg = hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on;
170 DPRINTF(("pwctl ghook: port %d %s(%d)", sc->sc_port,
171 *(int*)msg? "ON" : "OFF", *(int*)msg ? sc->sc_on : sc->sc_off));
172
173 return (0);
174 }
175
176 int
pwctl_hardpower(void * ctx,int type,long id,void * msg)177 pwctl_hardpower(void *ctx, int type, long id, void *msg)
178 {
179 struct pwctl_softc *sc = ctx;
180 int why =(int)msg;
181
182 VPRINTF(("pwctl hardpower: port %d %s: %s(%d)\n", sc->sc_port,
183 why == PWR_RESUME? "resume"
184 : why == PWR_SUSPEND? "suspend" : "standby",
185 sc->sc_save == sc->sc_on ? "on": "off", sc->sc_save));
186
187 switch (why) {
188 case PWR_STANDBY:
189 break;
190 case PWR_SUSPEND:
191 sc->sc_save = hpcio_portread(sc->sc_hc, sc->sc_port);
192 hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_off);
193 break;
194 case PWR_RESUME:
195 hpcio_portwrite(sc->sc_hc, sc->sc_port, sc->sc_save);
196 break;
197 }
198
199 return (0);
200 }
201