STATIC mp_obj_t irq_callback(mp_obj_t line)
{
DEBUG_printf("<< IRQ; state=%lu >>\n", sSpiInformation.ulSpiState);
switch (sSpiInformation.ulSpiState) {
case eSPI_STATE_POWERUP:
/* This means IRQ line was low call a callback of HCI Layer to inform on event */
DEBUG_printf(" - POWERUP\n");
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
break;
case eSPI_STATE_IDLE:
DEBUG_printf(" - IDLE\n");
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - we are start reception */
CS_LOW();
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
break;
case eSPI_STATE_WRITE_IRQ:
DEBUG_printf(" - WRITE IRQ\n");
SpiWriteDataSynchronous(sSpiInformation.pTxPacket, sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
CS_HIGH();
break;
}
return mp_const_none;
}
void SpiIntGPIOHandler(void)
{
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
//This means IRQ line was low call a callback of HCI Layer to inform
//on event
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - we are start reception */
ASSERT_CS();
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket,
sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
DEASSERT_CS();
}
}
//*****************************************************************************
//
//! The IntSpiGPIOHandler interrupt handler
//!
//! \param none
//!
//! \return none
//!
//! \brief GPIO A interrupt handler. When the external SSI WLAN device is
//! ready to interact with Host CPU it generates an interrupt signal.
//! After that Host CPU has registrated this interrupt request
//! it set the corresponding /CS in active state.
//
//*****************************************************************************
//#pragma vector=PORT2_VECTOR
//__interrupt void IntSpiGPIOHandler(void)
int CC3000InterruptHandler(int irq, void *context)
{
uint32_t regval = 0;
regval = getreg32(KL_PORTA_ISFR);
if (regval & (1 << PIN4))
{
if(spiEnabled)
printf("Receive an Interrupt!\n");
if (!SPIInterruptsEnabled) {
if(spiEnabled)
printf("SPIInterrupt was disabled!\n");
goto out;
}
if(spiEnabled)
printf("SPIInterrupt was enabled!\n");
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
/* This means IRQ line was low call a callback of HCI Layer to inform on event */
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - start reception */
AssertWlanCS();
//
// Wait for TX/RX Complete which will come as DMA interrupt
//
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket, sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
DeassertWlanCS();
}
else {
}
out:
regval = (1 << PIN4);
putreg32(regval, KL_PORTA_ISFR);
}
return 0;
}
void spiFinishRead()
{
//Serial.println("READ_IRQ_ENTERED");
if( sSpiInformation.ulSpiState == eSPI_STATE_READ_IRQ )
{
//Serial.println("READ_IRQ");
/* IRQ line goes down - start reception */
CC3000_ASSERT_CS;
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
DEBUGPRINT_F("SSICont\n\r");
SSIContReadOperation();
ccspi_is_in_irq = 0;
}
}
void PIN_INT2_IRQHandler(void)
#else
#error "CC3000 spi.c: No MCU defined"
#endif
{
/* Make sure the right flag is set in the int status register */
if ( LPC_GPIO_PIN_INT->IST & (0x1 << 2) )
{
/* Falling Edge */
if ( ( LPC_GPIO_PIN_INT->FALL & (0x1 << 2) ) && ( LPC_GPIO_PIN_INT->IENF & (0x1 << 2) ) )
{
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
/* This means IRQ line was low call a callback of HCI Layer to inform on event */
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - start reception */
CC3000_ASSERT_CS;
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket, sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
CC3000_DEASSERT_CS;
}
LPC_GPIO_PIN_INT->FALL = 0x1 << 2;
}
/* Clear the FLEX/PIN interrupt */
LPC_GPIO_PIN_INT->IST = 0x1 << 2;
}
return;
}
//*****************************************************************************
//
//! The IntSpiGPIOHandler interrupt handler
//!
//! \param none
//!
//! \return none
//!
//! \brief GPIO A interrupt handler. When the external SSI WLAN device is
//! ready to interact with Host CPU it generates an interrupt signal.
//! After that Host CPU has registrated this interrupt request
//! it set the corresponding /CS in active state.
//
//*****************************************************************************
void CC3000InterruptHandler(void)
{
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP) {
/* This means IRQ line was low call a callback of HCI Layer to inform on event */
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
} else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE) {
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - start reception */
assert_cs();
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
} else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ) {
SpiWriteDataSynchronous(sSpiInformation.pTxPacket,
sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
negate_cs();
}
}
//*****************************************************************************
//
//! The IntSpiGPIOHandler interrupt handler
//!
//! \param none
//!
//! \return none
//!
//! \brief GPIO A interrupt handler. When the external SSI WLAN device is
//! ready to interact with Host CPU it generates an interrupt signal.
//! After that Host CPU has registrated this interrupt request
//! it set the corresponding /CS in active state.
//
//*****************************************************************************
//#pragma vector=PORT2_VECTOR
//__interrupt void IntSpiGPIOHandler(void)
void CC3000InterruptHandler(void)
{
if (!SPIInterruptsEnabled) {
return;
}
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
/* This means IRQ line was low call a callback of HCI Layer to inform on event */
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - start reception */
Set_CC3000_CS_Active();
//
// Wait for TX/RX Compete which will come as DMA interrupt
//
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket, sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
Set_CC3000_CS_NotActive();
}
else {
}
}
//*****************************************************************************
//
//! EXTI11_IRQHandler
//!
//! @param none
//!
//! @return none
//!
//! @brief Interrupt handler. When the external SSI WLAN device is
//! ready to interact with Host CPU it generates an interrupt signal.
//! After that Host CPU has registered this interrupt request
//! it set the corresponding /CS in active state.
//
//*****************************************************************************
void EXTI1_IRQHandler(void)
{
if (EXTI_GetITStatus(IRQ_INT_LINE) != RESET)
{
ccspi_is_in_irq = 1;
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
//This means IRQ line was low call a callback of HCI Layer to inform
//on event
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - we are start reception */
ASSERT_CS();
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket,
sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
DEASSERT_CS();
}
ccspi_is_in_irq = 0;
EXTI_ClearITPendingBit(IRQ_INT_LINE);
}
}
void cc3k_int_poll(void)
{
if ((GPIO_ReadInputDataBit(IRQ_BASE, IRQ_PIN) == 0) &&(ccspi_is_in_irq == 0) && (ccspi_int_enabled != 0))
{
ccspi_is_in_irq = 1;
// ulCC3000IRQDelayFlags = 1;
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
//This means IRQ line was low call a callback of HCI Layer to inform
//on event
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - we are start reception */
ASSERT_CS();
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket,
sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
DEASSERT_CS();
}
ccspi_is_in_irq = 0;
}
}
void SPI_IRQ(void)
{
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
//This means IRQ line was low call a callback of HCI Layer to inform on event
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
//IRQ line goes down - we are start reception
csn(LOW);
//
// Wait for TX/RX Compete which will come as DMA interrupt
//
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket,
sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
csn(HIGH);
}
return;
}
void SPI_IRQ(void)
{
ccspi_is_in_irq = 1;
DEBUGPRINT_F("\tCC3000: Entering SPI_IRQ\n\r");
if (sSpiInformation.ulSpiState == eSPI_STATE_POWERUP)
{
/* IRQ line was low ... perform a callback on the HCI Layer */
sSpiInformation.ulSpiState = eSPI_STATE_INITIALIZED;
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_IDLE)
{
//DEBUGPRINT_F("IDLE\n\r");
sSpiInformation.ulSpiState = eSPI_STATE_READ_IRQ;
/* IRQ line goes down - start reception */
CC3000_ASSERT_CS;
// Wait for TX/RX Compete which will come as DMA interrupt
SpiReadHeader();
sSpiInformation.ulSpiState = eSPI_STATE_READ_EOT;
//DEBUGPRINT_F("SSICont\n\r");
SSIContReadOperation();
}
else if (sSpiInformation.ulSpiState == eSPI_STATE_WRITE_IRQ)
{
SpiWriteDataSynchronous(sSpiInformation.pTxPacket, sSpiInformation.usTxPacketLength);
sSpiInformation.ulSpiState = eSPI_STATE_IDLE;
CC3000_DEASSERT_CS;
}
DEBUGPRINT_F("\tCC3000: Leaving SPI_IRQ\n\r");
ccspi_is_in_irq = 0;
return;
}
