//---------------------------------------------------------------------------
//
// Function: EplEventuAddInstance
//
// Description: function add one more instance
//
//
//
// Parameters: pfnApiProcessEventCb_p = function pointer for API event callback
//
//
// Returns: tEpKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
tEplKernel PUBLIC EplEventuAddInstance(tEplProcessEventCb pfnApiProcessEventCb_p)
{
tEplKernel Ret;
#if EPL_USE_SHAREDBUFF != FALSE
tShbError ShbError;
unsigned int fShbNewCreated;
#endif
Ret = kEplSuccessful;
// init instance variables
EplEventuInstance_g.m_pfnApiProcessEventCb = pfnApiProcessEventCb_p;
#if EPL_USE_SHAREDBUFF != FALSE
// init shared loop buffer
// kernel -> user
ShbError = ShbCirAllocBuffer (EPL_EVENT_SIZE_SHB_KERNEL_TO_USER,
EPL_EVENT_NAME_SHB_KERNEL_TO_USER,
&EplEventuInstance_g.m_pShbKernelToUserInstance,
&fShbNewCreated);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventuAddInstance(): ShbCirAllocBuffer(K2U) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
goto Exit;
}
#if EPL_EVENT_USE_KERNEL_QUEUE != FALSE
// user -> kernel
ShbError = ShbCirAllocBuffer (EPL_EVENT_SIZE_SHB_USER_TO_KERNEL,
EPL_EVENT_NAME_SHB_USER_TO_KERNEL,
&EplEventuInstance_g.m_pShbUserToKernelInstance,
&fShbNewCreated);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventuAddInstance(): ShbCirAllocBuffer(U2K) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
goto Exit;
}
#endif
// register eventhandler
ShbError = ShbCirSetSignalHandlerNewData (EplEventuInstance_g.m_pShbKernelToUserInstance,
EplEventuRxSignalHandlerCb,
kShbPriorityNormal);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventuAddInstance(): ShbCirSetSignalHandlerNewData(K2U) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
goto Exit;
}
Exit:
#endif
return Ret;
}
tEplKernel PUBLIC EplEventkAddInstance(void)
{
tEplKernel Ret;
#if EPL_USE_SHAREDBUFF != FALSE
tShbError ShbError;
unsigned int fShbNewCreated;
#endif
Ret = kEplSuccessful;
// init instance structure
#if EPL_EVENT_USE_KERNEL_QUEUE != FALSE
EplEventkInstance_g.m_uiUserToKernelFullCount = 0;
#endif
#if EPL_USE_SHAREDBUFF != FALSE
// init shared loop buffer
// kernel -> user
ShbError = ShbCirAllocBuffer (EPL_EVENT_SIZE_SHB_KERNEL_TO_USER,
EPL_EVENT_NAME_SHB_KERNEL_TO_USER,
&EplEventkInstance_g.m_pShbKernelToUserInstance,
&fShbNewCreated);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventkAddInstance(): ShbCirAllocBuffer(K2U) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
goto Exit;
}
#if EPL_EVENT_USE_KERNEL_QUEUE != FALSE
// user -> kernel
ShbError = ShbCirAllocBuffer (EPL_EVENT_SIZE_SHB_USER_TO_KERNEL,
EPL_EVENT_NAME_SHB_USER_TO_KERNEL,
&EplEventkInstance_g.m_pShbUserToKernelInstance,
&fShbNewCreated);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventkAddInstance(): ShbCirAllocBuffer(U2K) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
goto Exit;
}
// register eventhandler
ShbError = ShbCirSetSignalHandlerNewData (EplEventkInstance_g.m_pShbUserToKernelInstance,
EplEventkRxSignalHandlerCb,
kShbPriorityHigh);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventkAddInstance(): ShbCirSetSignalHandlerNewData(U2K) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
goto Exit;
}
#endif
Exit:
#endif
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplEventuDelInstance
//
// Description: function delete instance an free the bufferstructure
//
//
//
// Parameters:
//
//
// Returns: tEpKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
tEplKernel PUBLIC EplEventuDelInstance()
{
tEplKernel Ret;
#if EPL_USE_SHAREDBUFF != FALSE
tShbError ShbError;
#endif
Ret = kEplSuccessful;
#if EPL_USE_SHAREDBUFF != FALSE
// set eventhandler to NULL
ShbError = ShbCirSetSignalHandlerNewData (EplEventuInstance_g.m_pShbKernelToUserInstance,
NULL,
kShbPriorityNormal);
if(ShbError != kShbOk)
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventuDelInstance(): ShbCirSetSignalHandlerNewData(K2U) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
}
#if EPL_EVENT_USE_KERNEL_QUEUE != FALSE
// free buffer User -> Kernel
ShbError = ShbCirReleaseBuffer (EplEventuInstance_g.m_pShbUserToKernelInstance);
if((ShbError != kShbOk) && (ShbError != kShbMemUsedByOtherProcs))
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventuDelInstance(): ShbCirReleaseBuffer(U2K) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
}
else
{
EplEventuInstance_g.m_pShbUserToKernelInstance = NULL;
}
#endif
// free buffer Kernel -> User
ShbError = ShbCirReleaseBuffer (EplEventuInstance_g.m_pShbKernelToUserInstance);
if((ShbError != kShbOk) && (ShbError != kShbMemUsedByOtherProcs))
{
//EPL_DBGLVL_EVENTK_TRACE1("EplEventuDelInstance(): ShbCirReleaseBuffer(K2U) -> 0x%X\n", ShbError);
Ret = kEplNoResource;
}
else
{
EplEventuInstance_g.m_pShbKernelToUserInstance = NULL;
}
#endif
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: EplEventuDelInstance
//
// Description: function delete instance an free the bufferstructure
//
//
//
// Parameters:
//
//
// Returns: tEpKernel = errorcode
//
//
// State:
//
//---------------------------------------------------------------------------
tEplKernel EplEventuDelInstance(void)
{
tEplKernel Ret;
#ifndef EPL_NO_FIFO
tShbError ShbError;
#endif
Ret = kEplSuccessful;
#ifndef EPL_NO_FIFO
// set eventhandler to NULL
ShbError =
ShbCirSetSignalHandlerNewData(EplEventuInstance_g.
m_pShbKernelToUserInstance, NULL,
kShbPriorityNormal);
if (ShbError != kShbOk) {
EPL_DBGLVL_EVENTK_TRACE1
("EplEventuDelInstance(): ShbCirSetSignalHandlerNewData(K2U) -> 0x%X\n",
ShbError);
Ret = kEplNoResource;
}
// free buffer User -> Kernel
ShbError =
ShbCirReleaseBuffer(EplEventuInstance_g.m_pShbUserToKernelInstance);
if ((ShbError != kShbOk) && (ShbError != kShbMemUsedByOtherProcs)) {
EPL_DBGLVL_EVENTK_TRACE1
("EplEventuDelInstance(): ShbCirReleaseBuffer(U2K) -> 0x%X\n",
ShbError);
Ret = kEplNoResource;
} else {
EplEventuInstance_g.m_pShbUserToKernelInstance = NULL;
}
// free buffer Kernel -> User
ShbError =
ShbCirReleaseBuffer(EplEventuInstance_g.m_pShbKernelToUserInstance);
if ((ShbError != kShbOk) && (ShbError != kShbMemUsedByOtherProcs)) {
EPL_DBGLVL_EVENTK_TRACE1
("EplEventuDelInstance(): ShbCirReleaseBuffer(K2U) -> 0x%X\n",
ShbError);
Ret = kEplNoResource;
} else {
EplEventuInstance_g.m_pShbKernelToUserInstance = NULL;
}
#endif
return Ret;
}
tEplKernel EplEventkAddInstance(tEplSyncCb pfnCbSync_p)
{
tEplKernel Ret;
#ifndef EPL_NO_FIFO
tShbError ShbError;
unsigned int fShbNewCreated;
#endif
Ret = kEplSuccessful;
// init instance structure
EplEventkInstance_g.m_uiUserToKernelFullCount = 0;
// save cb-function
EplEventkInstance_g.m_pfnCbSync = pfnCbSync_p;
#ifndef EPL_NO_FIFO
// init shared loop buffer
// kernel -> user
ShbError = ShbCirAllocBuffer(EPL_EVENT_SIZE_SHB_KERNEL_TO_USER,
EPL_EVENT_NAME_SHB_KERNEL_TO_USER,
&EplEventkInstance_g.
m_pShbKernelToUserInstance,
&fShbNewCreated);
if (ShbError != kShbOk) {
EPL_DBGLVL_EVENTK_TRACE1
("EplEventkAddInstance(): ShbCirAllocBuffer(K2U) -> 0x%X\n",
ShbError);
Ret = kEplNoResource;
goto Exit;
}
// user -> kernel
ShbError = ShbCirAllocBuffer(EPL_EVENT_SIZE_SHB_USER_TO_KERNEL,
EPL_EVENT_NAME_SHB_USER_TO_KERNEL,
&EplEventkInstance_g.
m_pShbUserToKernelInstance,
&fShbNewCreated);
if (ShbError != kShbOk) {
EPL_DBGLVL_EVENTK_TRACE1
("EplEventkAddInstance(): ShbCirAllocBuffer(U2K) -> 0x%X\n",
ShbError);
Ret = kEplNoResource;
goto Exit;
}
// register eventhandler
ShbError =
ShbCirSetSignalHandlerNewData(EplEventkInstance_g.
m_pShbUserToKernelInstance,
EplEventkRxSignalHandlerCb,
kshbPriorityHigh);
if (ShbError != kShbOk) {
EPL_DBGLVL_EVENTK_TRACE1
("EplEventkAddInstance(): ShbCirSetSignalHandlerNewData(U2K) -> 0x%X\n",
ShbError);
Ret = kEplNoResource;
goto Exit;
}
Exit:
#endif
return Ret;
}
