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author | Kristofer Jonsson <kristofer.jonsson@arm.com> | 2023-02-08 14:23:00 +0100 |
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committer | Kristofer Jonsson <kristofer.jonsson@arm.com> | 2023-02-08 14:44:01 +0100 |
commit | 3f5510fa3444217a442ac2e63ae50b27c9c26cf3 (patch) | |
tree | dbf2f8bb631af6e3a67d512835e17395e8e07704 /applications/message_handler_openamp/core_driver_mutex.cpp | |
parent | 87f6f7ebf5a51be7c819503894f486d05f2a8b31 (diff) | |
download | ethos-u-core-platform-3f5510fa3444217a442ac2e63ae50b27c9c26cf3.tar.gz |
Updating message handler firmware23.02-rc1
The 'message handler' firmware was based on a custom interface between
Linux and the firmware. Because the kernel driver has been converted
into a rpmsg driver, the 'message handler' application has been updated
into an OpenAMP based firmware.
Change-Id: I1339180c4f53cbad42501a2827863b7b49561ff4
Diffstat (limited to 'applications/message_handler_openamp/core_driver_mutex.cpp')
-rw-r--r-- | applications/message_handler_openamp/core_driver_mutex.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/applications/message_handler_openamp/core_driver_mutex.cpp b/applications/message_handler_openamp/core_driver_mutex.cpp new file mode 100644 index 0000000..d023ad2 --- /dev/null +++ b/applications/message_handler_openamp/core_driver_mutex.cpp @@ -0,0 +1,81 @@ +/* + * SPDX-FileCopyrightText: Copyright 2022-2023 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(); +} + +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); +} + +int ethosu_semaphore_take(void *sem) { + SemaphoreHandle_t handle = reinterpret_cast<SemaphoreHandle_t>(sem); + if (xSemaphoreTake(handle, portMAX_DELAY) != pdTRUE) { + printf("Error: Failed to take semaphore.\n"); + 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 |