DRV_SPI_SYS_QUEUE_HANDLE DRV_SPI_SYS_QUEUE_CreateQueueLock(DRV_SPI_SYS_QUEUE_MANAGER_HANDLE queueManager, DRV_SPI_SYS_QUEUE_SETUP * initParams, DRV_SPI_SYS_QUEUE_HANDLE * queue)
{
DRV_SPI_SYS_QUEUE_RESULT ret;
DRV_SPI_SYS_QUEUE_HANDLE ret2;
ret = _DRV_SPI_SYS_QUEUE_LockQueueManager(queueManager);
if (ret != DRV_SPI_SYS_QUEUE_SUCCESS)
{
return ret;
}
ret2 = DRV_SPI_SYS_QUEUE_CreateQueue(queueManager, initParams, queue);
ret = _DRV_SPI_SYS_QUEUE_UnlockQueueManager(queueManager);
if (ret != DRV_SPI_SYS_QUEUE_SUCCESS)
{
return ret;
}
return ret2;
}
SYS_MODULE_OBJ DRV_SPI0_Initialize(void)
{
DRV_SPI_OBJ *dObj = (DRV_SPI_OBJ*)NULL;
dObj = &gDrvSPI0Obj;
/* Disable the SPI module to configure it*/
PLIB_SPI_Disable ( SPI_ID_1 );
/* Set up Master or Slave Mode*/
PLIB_SPI_MasterEnable ( SPI_ID_1 );
PLIB_SPI_PinDisable(SPI_ID_1, SPI_PIN_SLAVE_SELECT);
/* Set up if the SPI is allowed to run while the rest of the CPU is in idle mode*/
PLIB_SPI_StopInIdleDisable( SPI_ID_1 );
/* Set up clock Polarity and output data phase*/
PLIB_SPI_ClockPolaritySelect( SPI_ID_1, SPI_CLOCK_POLARITY_IDLE_LOW );
PLIB_SPI_OutputDataPhaseSelect( SPI_ID_1, SPI_OUTPUT_DATA_PHASE_ON_IDLE_TO_ACTIVE_CLOCK );
/* Set up the Input Sample Phase*/
PLIB_SPI_InputSamplePhaseSelect ( SPI_ID_1, SPI_INPUT_SAMPLING_PHASE_IN_MIDDLE);
/* Communication Width Selection */
PLIB_SPI_CommunicationWidthSelect ( SPI_ID_1, SPI_COMMUNICATION_WIDTH_8BITS );
/* Baud rate selection */
PLIB_SPI_BaudRateSet( SPI_ID_1 , SYS_CLK_PeripheralFrequencyGet(CLK_BUS_PERIPHERAL_2), 1000000 );
/* Protocol selection */
PLIB_SPI_FramedCommunicationDisable( SPI_ID_1 );
#if defined (PLIB_SPI_ExistsAudioProtocolControl)
if (PLIB_SPI_ExistsAudioProtocolControl(SPI_ID_1))
{
PLIB_SPI_AudioProtocolDisable(SPI_ID_1);
}
#endif
/* Buffer type selection */
#if defined (PLIB_SPI_ExistsFIFOControl)
if (PLIB_SPI_ExistsFIFOControl( SPI_ID_1 ))
{
PLIB_SPI_FIFODisable( SPI_ID_1 );
}
#endif
PLIB_SPI_BufferClear( SPI_ID_1 );
PLIB_SPI_ReceiverOverflowClear ( SPI_ID_1 );
/* Initialize Queue only once for all instances of SPI driver*/
if (DRV_SPI_SYS_QUEUE_Initialize(&qmInitData, &hQueueManager) != DRV_SPI_SYS_QUEUE_SUCCESS)
{
SYS_ASSERT(false, "\r\nSPI Driver: Could not create queuing system.");
return SYS_MODULE_OBJ_INVALID;
}
/* Update the Queue parameters. */
qInitData.maxElements = 10; //Queue size
qInitData.reserveElements = 1; //Mininmum number of job queues reserved
/* Create Queue for this instance of SPI */
if (DRV_SPI_SYS_QUEUE_CreateQueue(hQueueManager, &qInitData, &dObj->queue) != DRV_SPI_SYS_QUEUE_SUCCESS)
{
SYS_ASSERT(false, "\r\nSPI Driver: Could not set up driver instance queue.");
return SYS_MODULE_OBJ_INVALID;
}
/* Update the SPI OBJECT parameters. */
dObj->operationStarting = NULL;
dObj->operationEnded = NULL;
SYS_INT_SourceDisable(INT_SOURCE_SPI_1_TRANSMIT);
SYS_INT_SourceDisable(INT_SOURCE_SPI_1_RECEIVE);
SYS_INT_SourceEnable(INT_SOURCE_SPI_1_ERROR);
/* Clear all interrupt sources */
SYS_INT_SourceStatusClear(INT_SOURCE_SPI_1_TRANSMIT);
SYS_INT_SourceStatusClear(INT_SOURCE_SPI_1_RECEIVE);
SYS_INT_SourceStatusClear(INT_SOURCE_SPI_1_ERROR);
/* Enable the Module */
PLIB_SPI_Enable(SPI_ID_1);
return (SYS_MODULE_OBJ)DRV_SPI_INDEX_0 ;
}
