/* This function shall be invoked by the API library
* and should not be explicitly invoked.
*/
void
CyU3PDmaBufferDeInit (
void)
{
uint32_t status;
/* Get the mutex lock. */
if (CyU3PThreadIdentify ())
{
status = CyU3PMutexGet (&glBufferManager.lock, CYU3P_WAIT_FOREVER);
}
else
{
status = CyU3PMutexGet (&glBufferManager.lock, CYU3P_NO_WAIT);
}
if (status != CY_U3P_SUCCESS)
{
return;
}
/* Free memory and zero out variables. */
CyU3PMemFree (glBufferManager.usedStatus);
glBufferManager.usedStatus = 0;
glBufferManager.startAddr = 0;
glBufferManager.regionSize = 0;
glBufferManager.statusSize = 0;
/* Free up and destroy the mutex variable. */
CyU3PMutexPut (&glBufferManager.lock);
CyU3PMutexDestroy (&glBufferManager.lock);
}
/* Function : CyU3PDmaBufferDeInit
* Description : This function frees up the custom heap used for DMA buffer allocation.
* The function should not be explicitly invoked, and is called from the
* API library.
* Parameters : None
*/
void
CyU3PDmaBufferDeInit (
void)
{
uint32_t status;
/* Get the mutex lock. */
if (CyU3PThreadIdentify ())
{
status = CyU3PMutexGet (&glBufferManager.lock, CYU3P_WAIT_FOREVER);
}
else
{
status = CyU3PMutexGet (&glBufferManager.lock, CYU3P_NO_WAIT);
}
if (status != CY_U3P_SUCCESS)
{
return;
}
/* Free memory and zero out variables. */
CyU3PMemFree (glBufferManager.usedStatus);
glBufferManager.usedStatus = 0;
glBufferManager.startAddr = 0;
glBufferManager.regionSize = 0;
glBufferManager.statusSize = 0;
#ifdef CYFXTX_ERRORDETECTION
/* Clear status tracking variables. */
glBufAllocCnt = 0;
glBufFreeCnt = 0;
glBufInUseList = 0;
#endif
/* Free up and destroy the mutex variable. */
CyU3PMutexPut (&glBufferManager.lock);
CyU3PMutexDestroy (&glBufferManager.lock);
}
