forked from project-chip/connectedhomeip
-
Notifications
You must be signed in to change notification settings - Fork 0
/
OpenIoTSDKArchUtils.c
123 lines (104 loc) · 2.46 KB
/
OpenIoTSDKArchUtils.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
/*
*
* Copyright (c) 2022 Project CHIP Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* Open IOT SDK platform adaptation file
*/
#include "OpenIoTSDKArchUtils.h"
#include <time.h>
#ifdef __cplusplus
extern "C" {
#endif
static uint32_t tick_h = 0U;
static uint32_t tick_l = 0U;
// GetTick() needs to be called at least twice per tick overflow to work properly.
uint64_t GetTick(void)
{
uint32_t tick = osKernelGetTickCount();
if (tick < tick_l)
{
tick_h++;
}
tick_l = tick;
return (((uint64_t) tick_h << 32) | tick_l);
}
/* Time to kernel ticks */
uint32_t sec2tick(uint32_t sec)
{
return (sec * osKernelGetTickFreq());
}
uint32_t ms2tick(uint32_t ms)
{
return (uint32_t)(((uint64_t) ms * (uint64_t) osKernelGetTickFreq()) / 1000U);
}
uint32_t us2tick(uint32_t usec)
{
// round division up because our tick is so long this might become 0
// we need the timer to sleep at least one tick as it otherwise breaks expectations
return (uint32_t)(((uint64_t) usec * osKernelGetTickFreq() + (1000000 - 1)) / 1000000);
}
/* Kernel ticks to time */
uint64_t tick2sec(uint64_t tick)
{
if (osKernelGetTickFreq() == 0U)
{
return 0;
}
return (tick / osKernelGetTickFreq());
}
uint64_t tick2ms(uint64_t tick)
{
if (osKernelGetTickFreq() == 0U)
{
return 0;
}
return ((tick * 1000U) / osKernelGetTickFreq());
}
uint64_t tick2us(uint64_t tick)
{
if (osKernelGetTickFreq() == 0U)
{
return 0;
}
return ((tick * 1000U * 1000U) / osKernelGetTickFreq());
}
void sleep(uint32_t sec)
{
if (sec)
{
osDelay(sec2tick(sec));
}
}
void usleep(uint32_t usec)
{
if (usec)
{
osDelay(us2tick(usec));
}
}
time_t time(time_t * __timer)
{
time_t seconds = (time_t)(tick2sec(GetTick()));
if (__timer)
{
*__timer = seconds;
}
return seconds;
}
#ifdef __cplusplus
}
#endif