/**
* \brief wlan stop
*
* Stop WLAN device by putting it into reset state.
*
* \return None
*
* \sa wlan_start
* \note
* \warning
*/
void
wlan_stop(void)
{
//
// ASIC 1273 chip disable
//
tSLInformation.WriteWlanPin( WLAN_DISABLE );
//
// Wait till IRQ line goes high...
//
while(tSLInformation.ReadWlanInterruptPin() == 0)
{
}
//
// Free the used by WLAN Driver memory
//
if (tSLInformation.pucTxCommandBuffer)
{
// OS_free (tSLInformation.pucTxCommandBuffer);
tSLInformation.pucTxCommandBuffer = 0;
}
SpiClose();
}
/* init io callback */
tSLInformation.ReadWlanInterruptPin = sReadWlanInterruptPin;
tSLInformation.WlanInterruptEnable = sWlanInterruptEnable;
tSLInformation.WlanInterruptDisable = sWlanInterruptDisable;
tSLInformation.WriteWlanPin = sWriteWlanPin;
//init asynchronous events callback
tSLInformation.sWlanCB= sWlanCB;
// By default TX Complete events are routed to host too
tSLInformation.InformHostOnTxComplete = 1;
}
//*****************************************************************************
//
//! SpiReceiveHandler
//!
//! @param pvBuffer - pointer to the received data buffer
//! The function triggers Received event/data processing
//!
//! @param Pointer to the received data
//! @return none
//!
//! @brief The function triggers Received event/data processing. It is
//! called from the SPI library to receive the data
//
//*****************************************************************************
void SpiReceiveHandler(void *pvBuffer)
{
tSLInformation.usEventOrDataReceived = 1;
tSLInformation.pucReceivedData = (unsigned char *)pvBuffer;
hci_unsolicited_event_handler();
}
//*****************************************************************************
//
//! wlan_start
//!
//! @param usPatchesAvailableAtHost - flag to indicate if patches available
//! from host or from EEPROM. Due to the
//! fact the patches are burn to the EEPROM
//! using the patch programmer utility, the
//! patches will be available from the EEPROM
//! and not from the host.
//!
//! @return none
//!
//! @brief Start WLAN device. This function asserts the enable pin of
//! the device (WLAN_EN), starting the HW initialization process.
//! The function blocked until device Initialization is completed.
//! Function also configure patches (FW, driver or bootloader)
//! and calls appropriate device callbacks.
//!
//! @Note Prior calling the function wlan_init shall be called.
//! @Warning This function must be called after wlan_init and before any
//! other wlan API
//! @sa wlan_init , wlan_stop
//!
//
//*****************************************************************************
#ifdef __ENABLE_MULTITHREADED_SUPPORT__
void c_wlan_start(unsigned short usPatchesAvailableAtHost)
#else /* __ENABLE_MULTITHREADED_SUPPORT__ */
void wlan_start(unsigned short usPatchesAvailableAtHost)
#endif /* __ENABLE_MULTITHREADED_SUPPORT__ */
{
unsigned long ulSpiIRQState;
tSLInformation.NumberOfSentPackets = 0;
tSLInformation.NumberOfReleasedPackets = 0;
tSLInformation.usRxEventOpcode = 0;
tSLInformation.usNumberOfFreeBuffers = 0;
tSLInformation.usSlBufferLength = 0;
tSLInformation.usBufferSize = 0;
tSLInformation.usRxDataPending = 0;
tSLInformation.slTransmitDataError = 0;
tSLInformation.usEventOrDataReceived = 0;
tSLInformation.pucReceivedData = 0;
// Allocate the memory for the RX/TX data transactions
tSLInformation.pucTxCommandBuffer = (unsigned char *)wlan_tx_buffer;
// init spi
SpiOpen(SpiReceiveHandler);
// Check the IRQ line
ulSpiIRQState = tSLInformation.ReadWlanInterruptPin();
// ASIC 1273 chip enable: toggle WLAN EN line
tSLInformation.WriteWlanPin( WLAN_ENABLE );
if (ulSpiIRQState)
{
// wait till the IRQ line goes low
while(tSLInformation.ReadWlanInterruptPin() != 0)
{
}
}
else
{
// Wait till the IRQ line goes high and then low.
while(tSLInformation.ReadWlanInterruptPin() == 0)
{
}
while(tSLInformation.ReadWlanInterruptPin() != 0)
{
}
}
SimpleLink_Init_Start(usPatchesAvailableAtHost);
// Read Buffer's size and finish
hci_command_send(HCI_CMND_READ_BUFFER_SIZE, tSLInformation.pucTxCommandBuffer, 0);
SimpleLinkWaitEvent(HCI_CMND_READ_BUFFER_SIZE, 0);
}
//*****************************************************************************
//
//! wlan_stop
//!
//! @param none
//!
//! @return none
//!
//! @brief Stop WLAN device by putting it into reset state.
//!
//! @sa wlan_start
//
//*****************************************************************************
#ifdef __ENABLE_MULTITHREADED_SUPPORT__
void c_wlan_stop(void)
#else /* __ENABLE_MULTITHREADED_SUPPORT__ */
void wlan_stop(void)
#endif /* __ENABLE_MULTITHREADED_SUPPORT__ */
{
// ASIC 1273 chip disable
tSLInformation.WriteWlanPin( WLAN_DISABLE );
// Wait till IRQ line goes high...
while(tSLInformation.ReadWlanInterruptPin() == 0)
{
}
// Free the used by WLAN Driver memory
if (tSLInformation.pucTxCommandBuffer)
{
tSLInformation.pucTxCommandBuffer = 0;
}
SpiClose();
}
