1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * APM (Advanced Power Management) Event Dispatcher
5 *
6 * Copyright (c) 1999 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
7 * Copyright (c) 1999 KOIE Hidetaka <koie@suri.co.jp>
8 * All rights reserved.
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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34#define APMD_CONFIGFILE		"/etc/apmd.conf"
35#define APM_CTL_DEVICEFILE	"/dev/apmctl"
36#define APM_NORM_DEVICEFILE	"/dev/apm"
37#define APMD_PIDFILE		"/var/run/apmd.pid"
38#define NICE_INCR		-20
39
40enum {
41	EVENT_NOEVENT,
42	EVENT_STANDBYREQ,
43	EVENT_SUSPENDREQ,
44	EVENT_NORMRESUME,
45	EVENT_CRITRESUME,
46	EVENT_BATTERYLOW,
47	EVENT_POWERSTATECHANGE,
48	EVENT_UPDATETIME,
49	EVENT_CRITSUSPEND,
50	EVENT_USERSTANDBYREQ,
51	EVENT_USERSUSPENDREQ,
52	EVENT_STANDBYRESUME,
53	EVENT_CAPABILITIESCHANGE,
54	EVENT_MAX
55};
56
57struct event_cmd_op {
58	int (* act)(void *this);
59	void (* dump)(void *this, FILE * fp);
60	struct event_cmd * (* clone)(void *this);
61	void (* free)(void *this);
62};
63struct event_cmd {
64	struct event_cmd * next;
65	size_t len;
66	char * name;
67	struct event_cmd_op * op;
68};
69struct event_cmd_exec {
70	struct event_cmd evcmd;
71	char * line;		/* Command line */
72};
73struct event_cmd_reject {
74	struct event_cmd evcmd;
75};
76
77struct event_config {
78	const char *name;
79	struct event_cmd * cmdlist;
80	int rejectable;
81};
82
83struct battery_watch_event {
84	struct battery_watch_event *next;
85	int level;
86	enum {
87		BATTERY_CHARGING,
88		BATTERY_DISCHARGING
89	} direction;
90	enum {
91		BATTERY_MINUTES,
92		BATTERY_PERCENT
93	} type;
94	int done;
95	struct event_cmd *cmdlist;
96};
97
98
99extern struct event_cmd_op event_cmd_exec_ops;
100extern struct event_cmd_op event_cmd_reject_ops;
101extern struct event_config events[EVENT_MAX];
102extern struct battery_watch_event *battery_watch_list;
103
104extern int register_battery_handlers(
105	int level, int direction,
106	struct event_cmd *cmdlist);
107extern int register_apm_event_handlers(
108	bitstr_t bit_decl(evlist, EVENT_MAX),
109	struct event_cmd *cmdlist);
110extern void free_event_cmd_list(struct event_cmd *p);
111
112extern int	yyparse(void);
113
114void	yyerror(const char *);
115int	yylex(void);
116
117struct event_cmd *event_cmd_default_clone(void *);
118int event_cmd_exec_act(void *);
119void event_cmd_exec_dump(void *, FILE *);
120struct event_cmd *event_cmd_exec_clone(void *);
121void event_cmd_exec_free(void *);
122int event_cmd_reject_act(void *);
123struct event_cmd *clone_event_cmd_list(struct event_cmd *);
124int exec_run_cmd(struct event_cmd *);
125int exec_event_cmd(struct event_config *);
126void read_config(void);
127void dump_config(void);
128void destroy_config(void);
129void restart(void);
130void enque_signal(int);
131void wait_child(void);
132int proc_signal(int);
133void proc_apmevent(int);
134void check_battery(void);
135void event_loop(void);
136