blob: 5f2e6cc16f803af8f5bf62f0385205b12f8adcb4 (
plain)
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
|
/*
* SPDX-FileCopyrightText: Copyright 2022-2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
* SPDX-License-Identifier: Apache-2.0
*
* 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
*
* 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.
*/
#if defined(ETHOSU)
#include "FreeRTOS.h"
#include "semphr.h"
#include <ethosu_driver.h>
#include <stdio.h>
extern "C" {
void *ethosu_mutex_create(void) {
return xSemaphoreCreateMutex();
}
void ethosu_mutex_destroy(void *mutex) {
SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(mutex);
vSemaphoreDelete(handle);
}
int ethosu_mutex_lock(void *mutex) {
SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(mutex);
if (xSemaphoreTake(handle, portMAX_DELAY) != pdTRUE) {
printf("Error: Failed to lock mutex.\n");
return -1;
}
return 0;
}
int ethosu_mutex_unlock(void *mutex) {
SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(mutex);
if (xSemaphoreGive(handle) != pdTRUE) {
printf("Error: Failed to unlock mutex.\n");
return -1;
}
return 0;
}
void *ethosu_semaphore_create(void) {
return xSemaphoreCreateCounting(255, 0);
}
void ethosu_semaphore_destroy(void *sem) {
SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(sem);
vSemaphoreDelete(handle);
}
int ethosu_semaphore_take(void *sem, uint64_t timeout) {
SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(sem);
if (xSemaphoreTake(handle, (TickType_t)timeout) != pdTRUE) {
// Semaphore take timed out
return -1;
}
return 0;
}
int ethosu_semaphore_give(void *sem) {
SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(sem);
if (xPortIsInsideInterrupt()) {
if (xSemaphoreGiveFromISR(handle, NULL) != pdTRUE) {
printf("Error: Failed to give semaphore from ISR.\n");
return -1;
}
} else {
if (xSemaphoreGive(handle) != pdTRUE) {
printf("Error: Failed to give semaphore.\n");
return -1;
}
}
return 0;
}
}
#endif
|
