1 /* $NetBSD: sysmon_envsysvar.h,v 1.48 2021/12/31 11:05:41 riastradh Exp $ */
2 
3 /*-
4  * Copyright (c) 2007, 2008 Juan Romero Pardines.
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 #ifndef _DEV_SYSMON_ENVSYSVAR_H_
29 #define _DEV_SYSMON_ENVSYSVAR_H_
30 
31 #include <sys/param.h>
32 #include <sys/types.h>
33 #include <sys/conf.h>
34 #include <sys/kernel.h>
35 #include <sys/systm.h>
36 #include <sys/mutex.h>
37 #include <sys/workqueue.h>
38 #include <sys/condvar.h>
39 
40 #include <dev/sysmon/sysmonvar.h>
41 #include <prop/proplib.h>
42 
43 #ifdef _KERNEL_OPT
44 #include "opt_envsys.h"
45 #endif
46 
47 enum sme_descr_type {
48           SME_DESC_UNITS = 1,
49           SME_DESC_STATES,
50           SME_DESC_DRIVE_STATES,
51           SME_DESC_BATTERY_CAPACITY,
52           SME_DESC_INDICATOR
53 };
54 
55 #ifdef ENVSYS_DEBUG
56 #define DPRINTF(x)  printf x
57 #else
58 #define DPRINTF(x)
59 #endif
60 
61 #ifdef ENVSYS_OBJECTS_DEBUG
62 #define DPRINTFOBJ(x)         printf x
63 #else
64 #define DPRINTFOBJ(x)
65 #endif
66 
67 /*
68  * Default timeout value for the callouts if no specified.
69  */
70 #define SME_EVENTS_DEFTIMEOUT 30
71 
72 /*
73  * struct used by a sysmon envsys event.
74  */
75 typedef struct sme_event {
76           struct work                   see_wk;
77           LIST_ENTRY(sme_event)         see_list;
78           struct sysmon_envsys          *see_sme; /* device associated */
79           struct penvsys_state          see_pes;  /* our power envsys */
80           envsys_data_t                 *see_edata;         /* our sensor data */
81           int                           see_type; /* type of the event */
82           int                           see_evstate;        /* state of prev event */
83           int                           see_evvalue;        /* value of prev event */
84           int                           see_flags;          /* see above */
85 #define SEE_EVENT_WORKING     0x0001              /* This event is busy */
86 } sme_event_t;
87 
88 /*
89  * struct by a sysmon envsys event set by a driver.
90  */
91 typedef struct sme_event_drv {
92           struct sysmon_envsys          *sed_sme;
93           prop_dictionary_t   sed_sdict;
94           envsys_data_t                 *sed_edata;
95           int                           sed_powertype;
96 } sme_event_drv_t;
97 
98 struct sme_descr_entry {
99           int                 type;
100           int                 crittype;
101           const char          *desc;
102 };
103 
104 /*
105  * common stuff.
106  */
107 extern    kmutex_t sme_global_mtx;      /* for the sme linked list and dict */
108 extern    prop_dictionary_t sme_propd;  /* the global sensor dictionary */
109 
110 /*
111  * linked list for the sysmon envsys devices.
112  */
113 LIST_HEAD(sysmon_envsys_lh, sysmon_envsys);
114 extern    struct sysmon_envsys_lh sysmon_envsys_list;
115 
116 /*
117  * functions to handle sysmon envsys devices.
118  */
119 int       sme_update_dictionary(struct sysmon_envsys *);
120 int       sme_update_sensor_dictionary(prop_object_t, envsys_data_t *, bool);
121 int       sme_userset_dictionary(struct sysmon_envsys *,
122                                      prop_dictionary_t, prop_array_t);
123 prop_dictionary_t sme_sensor_dictionary_get(prop_array_t, const char *);
124 struct    sysmon_envsys *sysmon_envsys_find(const char *);
125 void      sysmon_envsys_acquire(struct sysmon_envsys *, bool);
126 void      sysmon_envsys_release(struct sysmon_envsys *, bool);
127 
128 /*
129  * functions to handle sysmon envsys events.
130  */
131 int       sme_event_register(prop_dictionary_t, envsys_data_t *,
132                                  struct sysmon_envsys *, sysmon_envsys_lim_t *,
133                                  uint32_t, int, int);
134 int       sme_event_unregister(struct sysmon_envsys *, const char *, int);
135 int       sme_event_unregister_sensor(struct sysmon_envsys *, envsys_data_t *);
136 void      sme_event_unregister_all(struct sysmon_envsys *);
137 void      sme_event_drvadd(void *);
138 int       sme_events_init(struct sysmon_envsys *);
139 void      sme_events_destroy(struct sysmon_envsys *);
140 void      sme_events_halt_callout(struct sysmon_envsys *);
141 void      sme_events_check(void *);
142 void      sme_events_worker(struct work *, void *);
143 void      sme_deliver_event(sme_event_t *);
144 int       sme_update_limits(struct sysmon_envsys *, envsys_data_t *);
145 void      sme_schedule_callout(struct sysmon_envsys *);
146 
147 /*
148  * common functions to create/update objects in a dictionary.
149  */
150 int       sme_sensor_upbool(prop_dictionary_t, const char *, bool);
151 int       sme_sensor_upint32(prop_dictionary_t, const char *, int32_t);
152 int       sme_sensor_upuint32(prop_dictionary_t, const char *, uint32_t);
153 int       sme_sensor_upstring(prop_dictionary_t, const char *, const char *);
154 
155 const struct sme_descr_entry *sme_find_table_entry(enum sme_descr_type, int);
156 const struct sme_descr_entry * sme_find_table_desc(enum sme_descr_type,
157                                                                const char *);
158 
159 #endif /* _DEV_SYSMON_ENVSYSVAR_H_ */
160