1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
32#define APMD_CONFIGFILE		"/etc/apmd.conf"
33#define APM_CTL_DEVICEFILE	"/dev/apmctl"
34#define APM_NORM_DEVICEFILE	"/dev/apm"
35#define APMD_PIDFILE		"/var/run/apmd.pid"
36#define NICE_INCR		-20
37
38enum {
39	EVENT_NOEVENT,
40	EVENT_STANDBYREQ,
41	EVENT_SUSPENDREQ,
42	EVENT_NORMRESUME,
43	EVENT_CRITRESUME,
44	EVENT_BATTERYLOW,
45	EVENT_POWERSTATECHANGE,
46	EVENT_UPDATETIME,
47	EVENT_CRITSUSPEND,
48	EVENT_USERSTANDBYREQ,
49	EVENT_USERSUSPENDREQ,
50	EVENT_STANDBYRESUME,
51	EVENT_CAPABILITIESCHANGE,
52	EVENT_MAX
53};
54
55struct event_cmd_op {
56	int (* act)(void *this);
57	void (* dump)(void *this, FILE * fp);
58	struct event_cmd * (* clone)(void *this);
59	void (* free)(void *this);
60};
61struct event_cmd {
62	struct event_cmd * next;
63	size_t len;
64	char * name;
65	struct event_cmd_op * op;
66};
67struct event_cmd_exec {
68	struct event_cmd evcmd;
69	char * line;		/* Command line */
70};
71struct event_cmd_reject {
72	struct event_cmd evcmd;
73};
74
75struct event_config {
76	const char *name;
77	struct event_cmd * cmdlist;
78	int rejectable;
79};
80
81struct battery_watch_event {
82	struct battery_watch_event *next;
83	int level;
84	enum {
85		BATTERY_CHARGING,
86		BATTERY_DISCHARGING
87	} direction;
88	enum {
89		BATTERY_MINUTES,
90		BATTERY_PERCENT
91	} type;
92	int done;
93	struct event_cmd *cmdlist;
94};
95
96
97extern struct event_cmd_op event_cmd_exec_ops;
98extern struct event_cmd_op event_cmd_reject_ops;
99extern struct event_config events[EVENT_MAX];
100extern struct battery_watch_event *battery_watch_list;
101
102extern int register_battery_handlers(
103	int level, int direction,
104	struct event_cmd *cmdlist);
105extern int register_apm_event_handlers(
106	bitstr_t bit_decl(evlist, EVENT_MAX),
107	struct event_cmd *cmdlist);
108extern void free_event_cmd_list(struct event_cmd *p);
109
110extern int	yyparse(void);
111
112void	yyerror(const char *);
113int	yylex(void);
114
115struct event_cmd *event_cmd_default_clone(void *);
116int event_cmd_exec_act(void *);
117void event_cmd_exec_dump(void *, FILE *);
118struct event_cmd *event_cmd_exec_clone(void *);
119void event_cmd_exec_free(void *);
120int event_cmd_reject_act(void *);
121struct event_cmd *clone_event_cmd_list(struct event_cmd *);
122int exec_run_cmd(struct event_cmd *);
123int exec_event_cmd(struct event_config *);
124void read_config(void);
125void dump_config(void);
126void destroy_config(void);
127void restart(void);
128void enque_signal(int);
129void wait_child(void);
130int proc_signal(int);
131void proc_apmevent(int);
132void check_battery(void);
133void event_loop(void);
134