mirror of
https://github.com/espressif/esp-nimble.git
synced 2026-10-05 22:37:23 +00:00
Andrzej Kaczmarek
f1dba08467
This patch adds port of Nimble stack to FreeRTOS based on nRF5 SDK. It's split into 'common' part which can be used a base for porting to any other platform and 'freertos_nrf5_sdk' which has FreeRTOS-specific files and makefile. Building and flashing is similar to other demo apps from nRF5 SDK: $ make -C porting/freertos_nrf5_sdk The resulting image can be flashed on nRF52 DK: $ make -C porting/freertos_nrf5_sdk flash Location of nRF5 SDK is set by NRF5_SDK_ROOT variable. By default it is set to 'nrf5_sdk' subdirectory so a symlink would work just fine: $ ln -s <x>/nRF5_SDK_12.3.0_d7731ad porting/freertos_nrf5_sdk/nrf5_sdk
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef _OS_SEM_H_
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#define _OS_SEM_H_
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#include "os/queue.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct os_sem
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{
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SLIST_HEAD(, os_task) sem_head; /* chain of waiting tasks */
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uint16_t _pad;
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uint16_t sem_tokens; /* # of tokens */
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};
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/*
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XXX: NOTES
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-> Should we add a magic number or flag to the semaphore structure so
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that we know that this is a semaphore? We can use it for double checking
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that a proper semaphore was passed in to the API.
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-> What debug information should we add to this structure? Who last
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acquired the semaphore? File/line where it was released?
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-> Should we add a name to the semaphore?
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-> Should we add a "os_sem_inspect() api, like ucos?
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*/
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/* Create a semaphore */
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os_error_t os_sem_init(struct os_sem *sem, uint16_t tokens);
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/* Release a semaphore */
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os_error_t os_sem_release(struct os_sem *sem);
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/* Pend (wait) for a semaphore */
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os_error_t os_sem_pend(struct os_sem *sem, uint32_t timeout);
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/* Get current semaphore's count */
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static inline uint16_t os_sem_get_count(struct os_sem *sem)
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{
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return sem->sem_tokens;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _OS_SEM_H_ */
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