Semi-Autonomous-Robot / Semi Autonomous Robot - ECE 4180

Code for controlling mbed hardware (LED's, motors), as well as code for the Raspberry Pi to run a Support Vector Machine that identifies objects using the Pi camera

Dependencies:   mbed Motordriver mbed-rtos PololuLedStrip

mbed/mbed-rtos/rtos/Semaphore.h@3:a3ed7ff99772, 2019-12-06 (annotated)

Committer:
arogliero3
Date:
Fri Dec 06 00:58:02 2019 -0500
Revision:
3:a3ed7ff99772
Parent:
0:e0dbd261724a 
update img6

Who changed what in which revision?

UserRevisionLine numberNew contents of line
arogliero3 0:e0dbd261724a 1 /* mbed Microcontroller Library
arogliero3 0:e0dbd261724a 2 * Copyright (c) 2006-2012 ARM Limited
arogliero3 0:e0dbd261724a 3 *
arogliero3 0:e0dbd261724a 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
arogliero3 0:e0dbd261724a 5 * of this software and associated documentation files (the "Software"), to deal
arogliero3 0:e0dbd261724a 6 * in the Software without restriction, including without limitation the rights
arogliero3 0:e0dbd261724a 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
arogliero3 0:e0dbd261724a 8 * copies of the Software, and to permit persons to whom the Software is
arogliero3 0:e0dbd261724a 9 * furnished to do so, subject to the following conditions:
arogliero3 0:e0dbd261724a 10 *
arogliero3 0:e0dbd261724a 11 * The above copyright notice and this permission notice shall be included in
arogliero3 0:e0dbd261724a 12 * all copies or substantial portions of the Software.
arogliero3 0:e0dbd261724a 13 *
arogliero3 0:e0dbd261724a 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
arogliero3 0:e0dbd261724a 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
arogliero3 0:e0dbd261724a 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
arogliero3 0:e0dbd261724a 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
arogliero3 0:e0dbd261724a 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
arogliero3 0:e0dbd261724a 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
arogliero3 0:e0dbd261724a 20 * SOFTWARE.
arogliero3 0:e0dbd261724a 21 */
arogliero3 0:e0dbd261724a 22 #ifndef SEMAPHORE_H
arogliero3 0:e0dbd261724a 23 #define SEMAPHORE_H
arogliero3 0:e0dbd261724a 24
arogliero3 0:e0dbd261724a 25 #include <stdint.h>
arogliero3 0:e0dbd261724a 26 #include "cmsis_os.h"
arogliero3 0:e0dbd261724a 27
arogliero3 0:e0dbd261724a 28 namespace rtos {
arogliero3 0:e0dbd261724a 29 /** \addtogroup rtos */
arogliero3 0:e0dbd261724a 30 /** @{*/
arogliero3 0:e0dbd261724a 31
arogliero3 0:e0dbd261724a 32 /** The Semaphore class is used to manage and protect access to a set of shared resources. */
arogliero3 0:e0dbd261724a 33 class Semaphore {
arogliero3 0:e0dbd261724a 34 public:
arogliero3 0:e0dbd261724a 35 /** Create and Initialize a Semaphore object used for managing resources.
arogliero3 0:e0dbd261724a 36 @param number of available resources; maximum index value is (count-1). (default: 0).
arogliero3 0:e0dbd261724a 37 */
arogliero3 0:e0dbd261724a 38 Semaphore(int32_t count=0);
arogliero3 0:e0dbd261724a 39
arogliero3 0:e0dbd261724a 40 /** Wait until a Semaphore resource becomes available.
arogliero3 0:e0dbd261724a 41 @param millisec timeout value or 0 in case of no time-out. (default: osWaitForever).
arogliero3 0:e0dbd261724a 42 @return number of available tokens, or -1 in case of incorrect parameters
arogliero3 0:e0dbd261724a 43 */
arogliero3 0:e0dbd261724a 44 int32_t wait(uint32_t millisec=osWaitForever);
arogliero3 0:e0dbd261724a 45
arogliero3 0:e0dbd261724a 46 /** Release a Semaphore resource that was obtain with Semaphore::wait.
arogliero3 0:e0dbd261724a 47 @return status code that indicates the execution status of the function.
arogliero3 0:e0dbd261724a 48 */
arogliero3 0:e0dbd261724a 49 osStatus release(void);
arogliero3 0:e0dbd261724a 50
arogliero3 0:e0dbd261724a 51 ~Semaphore();
arogliero3 0:e0dbd261724a 52
arogliero3 0:e0dbd261724a 53 private:
arogliero3 0:e0dbd261724a 54 osSemaphoreId _osSemaphoreId;
arogliero3 0:e0dbd261724a 55 osSemaphoreDef_t _osSemaphoreDef;
arogliero3 0:e0dbd261724a 56 #ifdef CMSIS_OS_RTX
arogliero3 0:e0dbd261724a 57 uint32_t _semaphore_data[2];
arogliero3 0:e0dbd261724a 58 #endif
arogliero3 0:e0dbd261724a 59 };
arogliero3 0:e0dbd261724a 60
arogliero3 0:e0dbd261724a 61 }
arogliero3 0:e0dbd261724a 62 #endif
arogliero3 0:e0dbd261724a 63
arogliero3 0:e0dbd261724a 64 /** @}*/