bus.h
Go to the documentation of this file.
1 /*
2  * SPDX-FileCopyrightText: 2020 ML!PA Consulting GmbH
3  * SPDX-License-Identifier: LGPL-2.1-only
4  */
5 
6 #pragma once
7 
21 #include <assert.h>
22 #include "msg_bus.h"
23 
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27 
31 typedef enum {
32 #if MODULE_SYS_BUS_POWER
33  SYS_BUS_POWER,
34 #endif
35  SYS_BUS_NUMOF
36 } sys_bus_t;
37 
41 typedef enum {
45  SYS_BUS_POWER_EVENT_LOW_VOLTAGE,
46 
47  /* add more if needed, but not more than 32 */
48 } sys_bus_power_event_t;
49 
53 extern msg_bus_t _sys_bus[SYS_BUS_NUMOF];
54 
63 static inline msg_bus_t *sys_bus_get(sys_bus_t bus)
64 {
65  return &_sys_bus[bus];
66 }
67 
68 #ifdef __cplusplus
69 }
70 #endif
71 
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:41
_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:63
sys_bus_t
sys_bus_t
System Bus types.
Definition: bus.h:31
SYS_BUS_POWER_EVENT_LOW_VOLTAGE
@ SYS_BUS_POWER_EVENT_LOW_VOLTAGE
Supply voltage fallen below threshold.
Definition: bus.h:45
SYS_BUS_NUMOF
@ SYS_BUS_NUMOF
Number of enabled system buses.
Definition: bus.h:35
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:50