Skip to content

Commit

Permalink
nxp: mcux: drivers: dspi: add the guards for unsupported features
Browse files Browse the repository at this point in the history 
In order to re-use mcux FlexCAN driver for NXP s32z27x device, we need
to disable the following features which are not available on this
platform:
SR: TFUF, RSER: TFUF_RE, SLAVE mode

Signed-off-by: Tu Nguyen Van <tu.nguyenvan@nxp.com>
  • Loading branch information
@tunguyen4585
tunguyen4585 committed Sep 19, 2024
1 parent 7cfd138 commit 7d872e7
Show file tree
Hide file tree
Showing 4 changed files with 123 additions and 6 deletions.
48 changes: 45 additions & 3 deletions mcux/mcux-sdk/drivers/dspi/fsl_dspi.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,10 @@
/*! @brief Typedef for master interrupt handler. */
typedef void (*dspi_master_isr_t)(SPI_Type *base, dspi_master_handle_t *handle);

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*! @brief Typedef for slave interrupt handler. */
typedef void (*dspi_slave_isr_t)(SPI_Type *base, dspi_slave_handle_t *handle);
#endif

/*******************************************************************************
* Prototypes
Expand Down Expand Up @@ -53,18 +55,22 @@ static void DSPI_MasterTransferFillUpTxFifo(SPI_Type *base, dspi_master_handle_t
*/
static void DSPI_MasterTransferComplete(SPI_Type *base, dspi_master_handle_t *handle);

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* @brief Slave fill up the TX FIFO with data.
* This is not a public API.
*/
static void DSPI_SlaveTransferFillUpTxFifo(SPI_Type *base, dspi_slave_handle_t *handle);
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* @brief Slave finish up a transfer.
* It would call back if there is callback function and set the state to idle.
* This is not a public API.
*/
static void DSPI_SlaveTransferComplete(SPI_Type *base, dspi_slave_handle_t *handle);
#endif

/*!
* @brief DSPI common interrupt handler.
Expand Down Expand Up @@ -111,8 +117,10 @@ static void *g_dspiHandle[ARRAY_SIZE(s_dspiBases)];
/*! @brief Pointer to master IRQ handler for each instance. */
static dspi_master_isr_t s_dspiMasterIsr;

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*! @brief Pointer to slave IRQ handler for each instance. */
static dspi_slave_isr_t s_dspiSlaveIsr;
#endif

/* @brief Dummy data for each instance. This data is used when user's tx buffer is NULL*/
volatile uint8_t g_dspiDummyData[ARRAY_SIZE(s_dspiBases)] = {0};
Expand Down Expand Up @@ -285,6 +293,7 @@ void DSPI_MasterGetDefaultConfig(dspi_master_config_t *masterConfig)
masterConfig->samplePoint = kDSPI_SckToSin0Clock;
}

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief DSPI slave configuration.
*
Expand Down Expand Up @@ -342,7 +351,9 @@ void DSPI_SlaveInit(SPI_Type *base, const dspi_slave_config_t *slaveConfig)

DSPI_StartTransfer(base);
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief Sets the dspi_slave_config_t structure to a default value.
*
Expand Down Expand Up @@ -373,6 +384,7 @@ void DSPI_SlaveGetDefaultConfig(dspi_slave_config_t *slaveConfig)
slaveConfig->enableModifiedTimingFormat = false;
slaveConfig->samplePoint = kDSPI_SckToSin0Clock;
}
#endif

/*!
* brief De-initializes the DSPI peripheral. Call this API to disable the DSPI clock.
Expand Down Expand Up @@ -787,6 +799,7 @@ void DSPI_MasterWriteCommandDataBlocking(SPI_Type *base, uint32_t data)
}
}

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief Writes data into the data buffer in slave mode, waits till data was transmitted, and returns.
*
Expand Down Expand Up @@ -815,6 +828,7 @@ void DSPI_SlaveWriteDataBlocking(SPI_Type *base, uint32_t data)
{
}
}
#endif

/*!
* brief Enables the DSPI interrupts.
Expand Down Expand Up @@ -1707,6 +1721,7 @@ void DSPI_MasterTransferHandleIRQ(SPI_Type *base, dspi_master_handle_t *handle)
}

/*Transactional APIs -- Slave*/
#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief Initializes the DSPI slave handle.
*
Expand All @@ -1733,7 +1748,9 @@ void DSPI_SlaveTransferCreateHandle(SPI_Type *base,
handle->callback = callback;
handle->userData = userData;
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief DSPI slave transfers data using an interrupt.
*
Expand Down Expand Up @@ -1800,11 +1817,13 @@ status_t DSPI_SlaveTransferNonBlocking(SPI_Type *base, dspi_slave_handle_t *hand
/* RX FIFO overflow request enable */
DSPI_EnableInterrupts(base, (uint32_t)kDSPI_RxFifoOverflowInterruptEnable);
}
#if !(defined(FSL_FEATURE_FLEXCAN_HAS_NO_RSER_TFUF_SUPPORT) && FSL_FEATURE_FLEXCAN_HAS_NO_RSER_TFUF_SUPPORT)
if (NULL != handle->txData)
{
/* TX FIFO underflow request enable */
DSPI_EnableInterrupts(base, (uint32_t)kDSPI_TxFifoUnderflowInterruptEnable);
}
#endif

DSPI_StartTransfer(base);

Expand All @@ -1813,7 +1832,9 @@ status_t DSPI_SlaveTransferNonBlocking(SPI_Type *base, dspi_slave_handle_t *hand

return kStatus_Success;
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief Gets the slave transfer count.
*
Expand Down Expand Up @@ -1843,7 +1864,9 @@ status_t DSPI_SlaveTransferGetCount(SPI_Type *base, dspi_slave_handle_t *handle,
*count = handle->totalByteCount - handle->remainingReceiveByteCount;
return kStatus_Success;
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
static void DSPI_SlaveTransferFillUpTxFifo(SPI_Type *base, dspi_slave_handle_t *handle)
{
assert(NULL != handle);
Expand Down Expand Up @@ -1931,15 +1954,21 @@ static void DSPI_SlaveTransferFillUpTxFifo(SPI_Type *base, dspi_slave_handle_t *
DSPI_ClearStatusFlags(base, (uint32_t)kDSPI_TxFifoFillRequestFlag);
}
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
static void DSPI_SlaveTransferComplete(SPI_Type *base, dspi_slave_handle_t *handle)
{
assert(NULL != handle);

/* Disable interrupt requests */
DSPI_DisableInterrupts(
base, ((uint32_t)kDSPI_TxFifoUnderflowInterruptEnable | (uint32_t)kDSPI_TxFifoFillRequestInterruptEnable |
(uint32_t)kDSPI_RxFifoOverflowInterruptEnable | (uint32_t)kDSPI_RxFifoDrainRequestInterruptEnable));
base, (
#if !(defined(FSL_FEATURE_FLEXCAN_HAS_NO_RSER_TFUF_SUPPORT) && FSL_FEATURE_FLEXCAN_HAS_NO_RSER_TFUF_SUPPORT)
(uint32_t)kDSPI_TxFifoUnderflowInterruptEnable |
#endif
(uint32_t)kDSPI_TxFifoFillRequestInterruptEnable |
(uint32_t)kDSPI_RxFifoOverflowInterruptEnable | (uint32_t)kDSPI_RxFifoDrainRequestInterruptEnable));

/* The transfer is complete. */
handle->txData = NULL;
Expand All @@ -1964,7 +1993,9 @@ static void DSPI_SlaveTransferComplete(SPI_Type *base, dspi_slave_handle_t *hand
handle->callback(base, handle, status, handle->userData);
}
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief DSPI slave aborts a transfer using an interrupt.
*
Expand All @@ -1981,14 +2012,20 @@ void DSPI_SlaveTransferAbort(SPI_Type *base, dspi_slave_handle_t *handle)

/* Disable interrupt requests */
DSPI_DisableInterrupts(
base, ((uint32_t)kDSPI_TxFifoUnderflowInterruptEnable | (uint32_t)kDSPI_TxFifoFillRequestInterruptEnable |
base, (
#if !(defined(FSL_FEATURE_FLEXCAN_HAS_NO_RSER_TFUF_SUPPORT) && FSL_FEATURE_FLEXCAN_HAS_NO_RSER_TFUF_SUPPORT)
(uint32_t)kDSPI_TxFifoUnderflowInterruptEnable |
#endif
(uint32_t)kDSPI_TxFifoFillRequestInterruptEnable |
(uint32_t)kDSPI_RxFifoOverflowInterruptEnable | (uint32_t)kDSPI_RxFifoDrainRequestInterruptEnable));

handle->state = (uint8_t)kDSPI_Idle;
handle->remainingSendByteCount = 0;
handle->remainingReceiveByteCount = 0;
}
#endif

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
/*!
* brief DSPI Master IRQ handler function.
*
Expand Down Expand Up @@ -2145,6 +2182,7 @@ void DSPI_SlaveTransferHandleIRQ(SPI_Type *base, dspi_slave_handle_t *handle)
return;
}

#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SR_TFUF_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SR_TFUF_SUPPORT)
/* Catch tx fifo underflow conditions, service only if tx under flow interrupt enabled */
if (0U != (DSPI_GetStatusFlags(base) & (uint32_t)kDSPI_TxFifoUnderflowFlag))
{
Expand All @@ -2159,6 +2197,7 @@ void DSPI_SlaveTransferHandleIRQ(SPI_Type *base, dspi_slave_handle_t *handle)
handle->errorCount++;
}
}
#endif

/* Catch rx fifo overflow conditions, service only if rx over flow interrupt enabled */
if (0U != (DSPI_GetStatusFlags(base) & (uint32_t)kDSPI_RxFifoOverflowFlag))
Expand All @@ -2175,17 +2214,20 @@ void DSPI_SlaveTransferHandleIRQ(SPI_Type *base, dspi_slave_handle_t *handle)
}
}
}
#endif

static void DSPI_CommonIRQHandler(SPI_Type *base, void *param)
{
if (DSPI_IsMaster(base))
{
s_dspiMasterIsr(base, (dspi_master_handle_t *)param);
}
#if !(defined(FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT) && FSL_FEATURE_DSPI_HAS_NO_SLAVE_SUPPORT)
else
{
s_dspiSlaveIsr(base, (dspi_slave_handle_t *)param);
}
#endif
SDK_ISR_EXIT_BARRIER;
}

Expand Down
Loading

0 comments on commit 7d872e7

Please sign in to comment.