circuitpython/cc3200/simplelink/oslib/osi_freertos.c

748 lines
18 KiB
C

//*****************************************************************************
// osi_freertos.c
//
// Interface APIs for free-rtos function calls
//
// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
//
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//*****************************************************************************
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
#include "portmacro.h"
#include "osi.h"
#include "rom_map.h"
#include "inc/hw_types.h"
#include "interrupt.h"
#include "pybwdt.h"
#include "debug.h"
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
//Local function definition
static void vSimpleLinkSpawnTask( void *pvParameters );
//Queue Handler
QueueHandle_t xSimpleLinkSpawnQueue = NULL;
TaskHandle_t xSimpleLinkSpawnTaskHndl = NULL;
// Queue size
#define slQUEUE_SIZE ( 3 )
#define SL_SPAWN_MAX_WAIT_MS ( 200 )
// This is the static memory (TCB and stack) for the SL spawn task
static StaticTask_t spawnTaskTCB __attribute__ ((section (".rtos_heap")));
static portSTACK_TYPE spawnTaskStack[896 / sizeof(portSTACK_TYPE)] __attribute__ ((section (".rtos_heap"))) __attribute__((aligned (8)));
/*!
\brief This function registers an interrupt in NVIC table
The sync object is used for synchronization between different thread or ISR and
a thread.
\param iIntrNum - Interrupt number to register
\param pEntry - Pointer to the interrupt handler
\param ucPriority - priority of the interrupt
\return upon successful creation the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_InterruptRegister(int iIntrNum,P_OSI_INTR_ENTRY pEntry,unsigned char ucPriority)
{
MAP_IntRegister(iIntrNum,(void(*)(void))pEntry);
MAP_IntPrioritySet(iIntrNum, ucPriority);
MAP_IntEnable(iIntrNum);
return OSI_OK;
}
/*!
\brief This function De registers an interrupt in NVIC table
\param iIntrNum - Interrupt number to De register
\return none
\note
\warning
*/
void osi_InterruptDeRegister(int iIntrNum)
{
MAP_IntDisable(iIntrNum);
MAP_IntUnregister(iIntrNum);
}
/*!
\brief This function creates a sync object
The sync object is used for synchronization between different thread or ISR and
a thread.
\param pSyncObj - pointer to the sync object control block
\return upon successful creation the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_SyncObjCreate(OsiSyncObj_t* pSyncObj)
{
SemaphoreHandle_t *pl_SyncObj = (SemaphoreHandle_t *)pSyncObj;
*pl_SyncObj = xSemaphoreCreateBinary();
ASSERT (*pSyncObj != NULL);
return OSI_OK;
}
/*!
\brief This function deletes a sync object
\param pSyncObj - pointer to the sync object control block
\return upon successful deletion the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_SyncObjDelete(OsiSyncObj_t* pSyncObj)
{
vSemaphoreDelete(*pSyncObj );
return OSI_OK;
}
/*!
\brief This function generates a sync signal for the object.
All suspended threads waiting on this sync object are resumed
\param pSyncObj - pointer to the sync object control block
\return upon successful signaling the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note the function could be called from ISR context
\warning
*/
OsiReturnVal_e osi_SyncObjSignal(OsiSyncObj_t* pSyncObj)
{
xSemaphoreGive( *pSyncObj );
return OSI_OK;
}
/*!
\brief This function generates a sync signal for the object
from ISR context.
All suspended threads waiting on this sync object are resumed
\param pSyncObj - pointer to the sync object control block
\return upon successful signalling the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note the function is called from ISR context
\warning
*/
OsiReturnVal_e osi_SyncObjSignalFromISR(OsiSyncObj_t* pSyncObj)
{
xHigherPriorityTaskWoken = pdFALSE;
if(pdTRUE == xSemaphoreGiveFromISR( *pSyncObj, &xHigherPriorityTaskWoken ))
{
if( xHigherPriorityTaskWoken )
{
taskYIELD ();
}
}
return OSI_OK;
}
/*!
\brief This function waits for a sync signal of the specific sync object
\param pSyncObj - pointer to the sync object control block
\param Timeout - numeric value specifies the maximum number of mSec to
stay suspended while waiting for the sync signal
Currently, the simple link driver uses only two values:
- OSI_WAIT_FOREVER
- OSI_NO_WAIT
\return upon successful reception of the signal within the timeout window return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_SyncObjWait(OsiSyncObj_t* pSyncObj , OsiTime_t Timeout)
{
if(pdTRUE == xSemaphoreTake( (SemaphoreHandle_t)*pSyncObj, ( TickType_t )Timeout))
{
return OSI_OK;
}
else
{
return OSI_OPERATION_FAILED;
}
}
/*!
\brief This function clears a sync object
\param pSyncObj - pointer to the sync object control block
\return upon successful clearing the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_SyncObjClear(OsiSyncObj_t* pSyncObj)
{
if (OSI_OK == osi_SyncObjWait(pSyncObj,0) )
{
return OSI_OK;
}
else
{
return OSI_OPERATION_FAILED;
}
}
/*!
\brief This function creates a locking object.
The locking object is used for protecting a shared resources between different
threads.
\param pLockObj - pointer to the locking object control block
\return upon successful creation the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_LockObjCreate(OsiLockObj_t* pLockObj)
{
SemaphoreHandle_t *pl_LockObj = (SemaphoreHandle_t *)pLockObj;
vSemaphoreCreateBinary(*pl_LockObj);
ASSERT (*pLockObj != NULL);
return OSI_OK;
}
/*!
\brief This function creates a Task.
Creates a new Task and add it to the last of tasks that are ready to run
\param pEntry - pointer to the Task Function
\param pcName - Task Name String
\param usStackDepth - Stack Size in bytes
\param pvParameters - pointer to structure to be passed to the Task Function
\param uxPriority - Task Priority
\return upon successful creation the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_TaskCreate(P_OSI_TASK_ENTRY pEntry,const signed char * const pcName,
unsigned short usStackDepth, void *pvParameters,
unsigned long uxPriority,OsiTaskHandle* pTaskHandle)
{
ASSERT (pdPASS == xTaskCreate( pEntry, (char const*)pcName,
(usStackDepth/(sizeof( portSTACK_TYPE ))),
pvParameters,(unsigned portBASE_TYPE)uxPriority,
(TaskHandle_t*)pTaskHandle ));
return OSI_OK;
}
/*!
\brief This function Deletes a Task.
Deletes a Task and remove it from list of running task
\param pTaskHandle - Task Handle
\note
\warning
*/
void osi_TaskDelete(OsiTaskHandle* pTaskHandle)
{
vTaskDelete((TaskHandle_t)*pTaskHandle);
}
/*!
\brief This function deletes a locking object.
\param pLockObj - pointer to the locking object control block
\return upon successful deletion the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e _osi_LockObjDelete(OsiLockObj_t* pLockObj)
{
vSemaphoreDelete((SemaphoreHandle_t)*pLockObj );
return OSI_OK;
}
/*!
\brief This function locks a locking object.
All other threads that call this function before this thread calls
the osi_LockObjUnlock would be suspended
\param pLockObj - pointer to the locking object control block
\param Timeout - numeric value specifies the maximum number of mSec to
stay suspended while waiting for the locking object
Currently, the simple link driver uses only two values:
- OSI_WAIT_FOREVER
- OSI_NO_WAIT
\return upon successful reception of the locking object the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e _osi_LockObjLock(OsiLockObj_t* pLockObj , OsiTime_t Timeout)
{
//Take Semaphore
if(pdTRUE == xSemaphoreTake( *pLockObj, ( TickType_t ) Timeout ))
{
return OSI_OK;
}
else
{
return OSI_OPERATION_FAILED;
}
}
/*!
\brief This function unlock a locking object.
\param pLockObj - pointer to the locking object control block
\return upon successful unlocking the function should return 0
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e _osi_LockObjUnlock(OsiLockObj_t* pLockObj)
{
//Release Semaphore
if(pdTRUE == xSemaphoreGive( *pLockObj ))
{
return OSI_OK;
}
else
{
return OSI_OPERATION_FAILED;
}
}
/*!
\brief This function call the pEntry callback from a different context
\param pEntry - pointer to the entry callback function
\param pValue - pointer to any type of memory structure that would be
passed to pEntry callback from the execution thread.
\param flags - execution flags - reserved for future usage
\return upon successful registration of the spawn the function should return 0
(the function is not blocked till the end of the execution of the function
and could be returned before the execution is actually completed)
Otherwise, a negative value indicating the error code shall be returned
\note
\warning
*/
OsiReturnVal_e osi_Spawn(P_OSI_SPAWN_ENTRY pEntry , void* pValue , unsigned long flags)
{
tSimpleLinkSpawnMsg Msg;
Msg.pEntry = pEntry;
Msg.pValue = pValue;
xHigherPriorityTaskWoken = pdFALSE;
if(pdTRUE == xQueueSendFromISR( xSimpleLinkSpawnQueue, &Msg, &xHigherPriorityTaskWoken ))
{
if( xHigherPriorityTaskWoken )
{
taskYIELD ();
}
return OSI_OK;
}
return OSI_OPERATION_FAILED;
}
/*!
\brief This is the simplelink spawn task to call SL callback from a different context
\param pvParameters - pointer to the task parameter
\return void
\note
\warning
*/
void vSimpleLinkSpawnTask(void *pvParameters)
{
tSimpleLinkSpawnMsg Msg;
portBASE_TYPE ret;
for(;;)
{
ret = xQueueReceive( xSimpleLinkSpawnQueue, &Msg, SL_SPAWN_MAX_WAIT_MS);
if(ret == pdPASS)
{
Msg.pEntry(Msg.pValue);
}
// set the alive flag for the wdt
pybwdt_sl_alive();
}
}
/*!
\brief This is the API to create SL spawn task and create the SL queue
\param uxPriority - task priority
\return void
\note
\warning
*/
__attribute__ ((section (".boot")))
OsiReturnVal_e VStartSimpleLinkSpawnTask(unsigned portBASE_TYPE uxPriority)
{
xSimpleLinkSpawnQueue = xQueueCreate( slQUEUE_SIZE, sizeof( tSimpleLinkSpawnMsg ) );
ASSERT (xSimpleLinkSpawnQueue != NULL);
/*
// This is the original code to create a task dynamically
ASSERT (pdPASS == xTaskCreate( vSimpleLinkSpawnTask, ( portCHAR * ) "SLSPAWN",\
896 / sizeof(portSTACK_TYPE), NULL, uxPriority, &xSimpleLinkSpawnTaskHndl ));
*/
// This code creates the task using static memory for the TCB and stack
xSimpleLinkSpawnTaskHndl = xTaskCreateStatic(
vSimpleLinkSpawnTask, ( portCHAR * ) "SLSPAWN",
896 / sizeof(portSTACK_TYPE), NULL, uxPriority,
spawnTaskStack, &spawnTaskTCB);
ASSERT(xSimpleLinkSpawnTaskHndl != NULL);
return OSI_OK;
}
/*!
\brief This is the API to delete SL spawn task and delete the SL queue
\param none
\return void
\note
\warning
*/
void VDeleteSimpleLinkSpawnTask( void )
{
if(xSimpleLinkSpawnTaskHndl)
{
vTaskDelete( xSimpleLinkSpawnTaskHndl );
xSimpleLinkSpawnTaskHndl = 0;
}
if(xSimpleLinkSpawnQueue)
{
vQueueDelete( xSimpleLinkSpawnQueue );
xSimpleLinkSpawnQueue = 0;
}
}
/*!
\brief This function is used to create the MsgQ
\param pMsgQ - pointer to the message queue
\param pMsgQName - msg queue name
\param MsgSize - size of message on the queue
\param MaxMsgs - max. number of msgs that the queue can hold
\return - OsiReturnVal_e
\note
\warning
*/
OsiReturnVal_e osi_MsgQCreate(OsiMsgQ_t* pMsgQ ,
char* pMsgQName,
unsigned long MsgSize,
unsigned long MaxMsgs)
{
QueueHandle_t handle;
//Create Queue
handle = xQueueCreate( MaxMsgs, MsgSize );
ASSERT (handle != NULL);
*pMsgQ = (OsiMsgQ_t)handle;
return OSI_OK;
}
/*!
\brief This function is used to delete the MsgQ
\param pMsgQ - pointer to the message queue
\return - OsiReturnVal_e
\note
\warning
*/
OsiReturnVal_e osi_MsgQDelete(OsiMsgQ_t* pMsgQ)
{
vQueueDelete((QueueHandle_t) *pMsgQ );
return OSI_OK;
}
/*!
\brief This function is used to write data to the MsgQ
\param pMsgQ - pointer to the message queue
\param pMsg - pointer to the Msg strut to read into
\param Timeout - timeout to wait for the Msg to be available
\return - OsiReturnVal_e
\note
\warning
*/
OsiReturnVal_e osi_MsgQWrite(OsiMsgQ_t* pMsgQ, void* pMsg , OsiTime_t Timeout)
{
xHigherPriorityTaskWoken = pdFALSE;
if(pdPASS == xQueueSendFromISR((QueueHandle_t) *pMsgQ, pMsg, &xHigherPriorityTaskWoken ))
{
taskYIELD ();
return OSI_OK;
}
else
{
return OSI_OPERATION_FAILED;
}
}
/*!
\brief This function is used to read data from the MsgQ
\param pMsgQ - pointer to the message queue
\param pMsg - pointer to the Msg strut to read into
\param Timeout - timeout to wait for the Msg to be available
\return - OsiReturnVal_e
\note
\warning
*/
OsiReturnVal_e osi_MsgQRead(OsiMsgQ_t* pMsgQ, void* pMsg , OsiTime_t Timeout)
{
//Receive Item from Queue
if( pdTRUE == xQueueReceive((QueueHandle_t)*pMsgQ,pMsg,Timeout) )
{
return OSI_OK;
}
else
{
return OSI_OPERATION_FAILED;
}
}
/*!
\brief This function to call the memory de-allocation function of the FREERTOS
\param Size - size of memory to alloc in bytes
\return - void *
\note
\warning
*/
void * mem_Malloc(unsigned long Size)
{
return ( void * ) pvPortMalloc( (size_t)Size );
}
/*!
\brief This function to call the memory de-allocation function of the FREERTOS
\param pMem - pointer to the memory which needs to be freed
\return - void
\note
\warning
*/
void mem_Free(void *pMem)
{
vPortFree( pMem );
}
/*!
\brief This function call the memset function
\param pBuf - pointer to the memory to be fill
\param Val - Value to be fill
\param Size - Size of the memory which needs to be fill
\return - void
\note
\warning
*/
void mem_set(void *pBuf,int Val,size_t Size)
{
memset( pBuf,Val,Size);
}
/*!
\brief This function call the memcopy function
\param pDst - pointer to the destination
\param pSrc - pointer to the source
\param Size - Size of the memory which needs to be copy
\return - void
\note
\warning
*/
void mem_copy(void *pDst, void *pSrc,size_t Size)
{
memcpy(pDst,pSrc,Size);
}
/*!
\brief This function use to entering into critical section
\param void
\return - void
\note
\warning
*/
void osi_EnterCritical(void)
{
vPortEnterCritical();
}
/*!
\brief This function use to exit critical section
\param void
\return - void
\note
\warning
*/
void osi_ExitCritical(void)
{
vPortExitCritical();
}
/*!
\brief This function used to start the scheduler
\param void
\return - void
\note
\warning
*/
__attribute__ ((section (".boot")))
void osi_start()
{
vTaskStartScheduler();
}
/*!
\brief This function used to suspend the task for the specified number of milli secs
\param MilliSecs - Time in millisecs to suspend the task
\return - void
\note
\warning
*/
void osi_Sleep(unsigned int MilliSecs)
{
vTaskDelay(MilliSecs);
}
/*!
\brief This function used to disable the tasks
\param - void
\return - Key with the suspended tasks
\note
\warning
*/
void osi_TaskDisable(void)
{
vTaskSuspendAll();
}
/*!
\brief This function used to resume all the tasks
\param key - returned from suspend tasks
\return - void
\note
\warning
*/
void osi_TaskEnable(void)
{
xTaskResumeAll();
}
/*!
\brief This function used to save the OS context before sleep
\param void
\return - void
\note
\warning
*/
void osi_ContextSave()
{
}
/*!
\brief This function used to restore the OS context after sleep
\param void
\return - void
\note
\warning
*/
void osi_ContextRestore()
{
}