sys_arch.h

00001 /* Copyright (C) 2012 mbed.org, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018 #ifndef __ARCH_SYS_ARCH_H__
00019 #define __ARCH_SYS_ARCH_H__
00020 
00021 #include "lwip/opt.h"
00022 
00023 #if NO_SYS == 0
00024 #include "cmsis_os.h"
00025 
00026 // === SEMAPHORE ===
00027 typedef struct {
00028     osSemaphoreId    id;
00029     osSemaphoreDef_t def;
00030 #ifdef CMSIS_OS_RTX
00031     uint32_t         data[2];
00032 #endif
00033 } sys_sem_t;
00034 
00035 #define sys_sem_valid(x)        (((*x).id == NULL) ? 0 : 1)
00036 #define sys_sem_set_invalid(x)  ( (*x).id = NULL)
00037 
00038 // === MUTEX ===
00039 typedef struct {
00040     osMutexId    id;
00041     osMutexDef_t def;
00042 #ifdef CMSIS_OS_RTX
00043 #if defined(__MBED_CMSIS_RTOS_CA9) || defined(__MBED_CMSIS_RTOS_CM)
00044     int32_t      data[4];
00045 #else
00046     int32_t      data[3];
00047 #endif
00048 #endif
00049 } sys_mutex_t;
00050 
00051 // === MAIL BOX ===
00052 #define MB_SIZE      8
00053 
00054 typedef struct {
00055     osMessageQId    id;
00056     osMessageQDef_t def;
00057 #ifdef CMSIS_OS_RTX
00058     uint32_t        queue[4+MB_SIZE]; /* The +4 is required for RTX OS_MCB overhead. */
00059 #endif
00060 } sys_mbox_t;
00061 
00062 #define SYS_MBOX_NULL               ((uint32_t) NULL)
00063 #define sys_mbox_valid(x)           (((*x).id == NULL) ? 0 : 1 )
00064 #define sys_mbox_set_invalid(x)     ( (*x).id = NULL )
00065 
00066 #if ((DEFAULT_RAW_RECVMBOX_SIZE) > (MB_SIZE)) || \
00067     ((DEFAULT_UDP_RECVMBOX_SIZE) > (MB_SIZE)) || \
00068     ((DEFAULT_TCP_RECVMBOX_SIZE) > (MB_SIZE)) || \
00069     ((DEFAULT_ACCEPTMBOX_SIZE)   > (MB_SIZE)) || \
00070     ((TCPIP_MBOX_SIZE)           > (MB_SIZE))
00071 #   error Mailbox size not supported
00072 #endif
00073 
00074 // === THREAD ===
00075 typedef struct {
00076     osThreadId    id;
00077     osThreadDef_t def;
00078 } sys_thread_data_t;
00079 typedef sys_thread_data_t* sys_thread_t;
00080 
00081 #define SYS_THREAD_POOL_N                   6
00082 #define SYS_DEFAULT_THREAD_STACK_DEPTH      DEFAULT_STACK_SIZE
00083 
00084 // === PROTECTION ===
00085 typedef int sys_prot_t;
00086 
00087 #else
00088 #ifdef  __cplusplus
00089 extern "C" {
00090 #endif
00091 
00092 /** \brief  Init systick to 1ms rate
00093  *
00094  *  This init the systick to 1ms rate. This function is only used in standalone
00095  *  systems.
00096  */
00097 void SysTick_Init(void);
00098 
00099 
00100 /** \brief  Get the current systick time in milliSeconds
00101  *
00102  *  Returns the current systick time in milliSeconds. This function is only
00103  *  used in standalone systems.
00104  *
00105  *  /returns current systick time in milliSeconds
00106  */
00107 uint32_t SysTick_GetMS(void);
00108 
00109 /** \brief  Delay for the specified number of milliSeconds
00110  *
00111  *  For standalone systems. This function will block for the specified
00112  *  number of milliSconds. For RTOS based systems, this function will delay
00113  *  the task by the specified number of milliSeconds.
00114  *
00115  *  \param[in]  ms Time in milliSeconds to delay
00116  */
00117 void osDelay(uint32_t ms);
00118 
00119 #ifdef  __cplusplus
00120 }
00121 #endif
00122 #endif
00123 
00124 #endif /* __ARCH_SYS_ARCH_H__ */