00001 /*This file has been prepared for Doxygen automatic documentation generation.*/ 00015 /* Copyright (c) 2009 Atmel Corporation. All rights reserved. 00016 * 00017 * Redistribution and use in source and binary forms, with or without 00018 * modification, are permitted provided that the following conditions are met: 00019 * 00020 * 1. Redistributions of source code must retain the above copyright notice, this 00021 * list of conditions and the following disclaimer. 00022 * 00023 * 2. Redistributions in binary form must reproduce the above copyright notice, 00024 * this list of conditions and the following disclaimer in the documentation 00025 * and/or other materials provided with the distribution. 00026 * 00027 * 3. The name of Atmel may not be used to endorse or promote products derived 00028 * from this software without specific prior written permission. 00029 * 00030 * 4. This software may only be redistributed and used in connection with an Atmel 00031 * AVR product. 00032 * 00033 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED 00034 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00035 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 00036 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR 00037 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00038 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00039 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00040 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00041 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00042 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 00043 * 00044 */ 00045 00046 #ifndef __ARCH_SYS_ARCH_H__ 00047 #define __ARCH_SYS_ARCH_H__ 00048 00049 #include "FreeRTOS.h" 00050 #include "task.h" 00051 #include "queue.h" 00052 #include "semphr.h" 00053 00054 00055 typedef xSemaphoreHandle sys_sem_t; 00056 typedef xQueueHandle sys_mbox_t; 00057 typedef xTaskHandle sys_thread_t; 00058 00059 #define SYS_MBOX_NULL (xQueueHandle)0 00060 #define SYS_SEM_NULL (xSemaphoreHandle)0 00061 00062 typedef unsigned long int sys_prot_t; 00063 00064 /* This optional function does a "fast" critical region protection and returns 00065 the previous protection level. This function is only called during very short 00066 critical regions. An embedded system which supports ISR-based drivers might want 00067 to implement this function by disabling interrupts. Task-based systems might want 00068 to implement this by using a mutex or disabling tasking. This function should 00069 support recursive calls from the same task or interrupt. In other words, 00070 sys_arch_protect() could be called while already protected. In that case the 00071 return value indicates that it is already protected. */ 00072 extern sys_prot_t sys_arch_protect(void); 00073 00074 /* This optional function does a "fast" set of critical region protection to the 00075 value specified by pval. See the documentation for sys_arch_protect() for more 00076 information. This function is only required if your port is supporting an 00077 operating system. */ 00078 extern void sys_arch_unprotect(sys_prot_t pval); 00079 00080 #endif /* __ARCH_SYS_ARCH_H__ */ 00081
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