bus.h
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1 /*
2  * Copyright (C) 2020 ML!PA Consulting GmbH
3  *
4  * This file is subject to the terms and conditions of the GNU Lesser
5  * General Public License v2.1. See the file LICENSE in the top level
6  * directory for more details.
7  */
8 
22 #ifndef SYS_BUS_H
23 #define SYS_BUS_H
24 
25 #include <assert.h>
26 #include "msg_bus.h"
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
35 typedef enum {
36 #if MODULE_SYS_BUS_POWER
37  SYS_BUS_POWER,
38 #endif
39  SYS_BUS_NUMOF
40 } sys_bus_t;
41 
45 typedef enum {
49  SYS_BUS_POWER_EVENT_LOW_VOLTAGE,
50 
51  /* add more if needed, but not more than 32 */
52 } sys_bus_power_event_t;
53 
57 extern msg_bus_t _sys_bus[SYS_BUS_NUMOF];
58 
67 static inline msg_bus_t *sys_bus_get(sys_bus_t bus)
68 {
69  return &_sys_bus[bus];
70 }
71 
72 #ifdef __cplusplus
73 }
74 #endif
75 
76 #endif /* SYS_BUS_H */
assert.h
POSIX.1-2008 compliant version of the assert macro.
sys_bus_power_event_t
sys_bus_power_event_t
Power Bus Events.
Definition: bus.h:45
_sys_bus
msg_bus_t _sys_bus[SYS_BUS_NUMOF]
The System Bus array - do not use directly.
sys_bus_get
static msg_bus_t * sys_bus_get(sys_bus_t bus)
Get a System Bus for a category of events.
Definition: bus.h:67
sys_bus_t
sys_bus_t
System Bus types.
Definition: bus.h:35
SYS_BUS_POWER_EVENT_LOW_VOLTAGE
@ SYS_BUS_POWER_EVENT_LOW_VOLTAGE
Supply voltage fallen below threshold.
Definition: bus.h:49
SYS_BUS_NUMOF
@ SYS_BUS_NUMOF
Number of enabled system buses.
Definition: bus.h:39
msg_bus.h
Messaging Bus API for inter process message broadcast.
msg_bus_t
A message bus is just a list of subscribers.
Definition: msg_bus.h:54