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 
9 #pragma once
10 
24 #include <assert.h>
25 #include "msg_bus.h"
26 
27 #ifdef __cplusplus
28 extern "C" {
29 #endif
30 
34 typedef enum {
35 #if MODULE_SYS_BUS_POWER
36  SYS_BUS_POWER,
37 #endif
38  SYS_BUS_NUMOF
39 } sys_bus_t;
40 
44 typedef enum {
48  SYS_BUS_POWER_EVENT_LOW_VOLTAGE,
49 
50  /* add more if needed, but not more than 32 */
51 } sys_bus_power_event_t;
52 
56 extern msg_bus_t _sys_bus[SYS_BUS_NUMOF];
57 
66 static inline msg_bus_t *sys_bus_get(sys_bus_t bus)
67 {
68  return &_sys_bus[bus];
69 }
70 
71 #ifdef __cplusplus
72 }
73 #endif
74 
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:44
_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:66
sys_bus_t
sys_bus_t
System Bus types.
Definition: bus.h:34
SYS_BUS_POWER_EVENT_LOW_VOLTAGE
@ SYS_BUS_POWER_EVENT_LOW_VOLTAGE
Supply voltage fallen below threshold.
Definition: bus.h:48
SYS_BUS_NUMOF
@ SYS_BUS_NUMOF
Number of enabled system buses.
Definition: bus.h:38
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:53