/***********************************************************************************
* @fn halRfDisableRxInterrupt
*
* @brief Clear and disable RX interrupt.
*
* @param none
*
* @return none
*/
void halRfDisableRxInterrupt(void)
{
// Clear the exception and the IRQ
CLEAR_EXC_RX_FRM_DONE();
halDigioIntClear(&pinRadio_GPIO0);
halDigioIntDisable(&pinRadio_GPIO0);
}
/***********************************************************************************
* @fn cc2520_init
*
* @brief Initialise cc2520 datastructures. Sets channel, short address and
* PAN id in the chip and configures interrupt on packet reception
*
* txState - file scope variable that keeps tx state info
* rxi - file scope variable info extracted from the last incoming
* frame
*
* @return none
*/
uint8_t
cc2520_init()
{
pConfig.panId = PAN_ID;
pConfig.channel = RF_CHANNEL;
pConfig.ackRequest = TRUE;
pConfig.myAddr = NODE_ADDR;
cc2520_interfaceInit(); // initialize the rest of the interface.
cc2520_spiInit(); // initialize spi.
if (cc2520_config() == FAILED)
return FAILED;
// initialize the ring buffer
// bufInit(&rxBuffer, ringBuffer, 512);
_disable_interrupts();
rxi.pPayload = NULL;
txState.receiveOn = TRUE;
txState.frameCounter = 0;
// Set channel
cc2520_setChannel(pConfig.channel);
// Write the short address and the PAN ID to the CC2520 RAM
cc2520_setShortAddr(pConfig.myAddr);
cc2520_setPanId(pConfig.panId);
// if security is enabled, write key and nonce
#ifdef SECURITY_CCM
//basicRfSecurityInit(pConfig);
#endif
// Set up receive interrupt (received data or acknowlegment)
P2IES &= ~(CC2520_INT_PIN); // Set rising edge
P2IFG &= ~(CC2520_INT_PIN);
P2IE |= CC2520_INT_PIN;
// Clear the exception
CLEAR_EXC_RX_FRM_DONE();
// Enable general interrupts
_enable_interrupts();
// And enable reception on cc2520
cc2520_receiveOn();
memset(eth_tx_buf, 0xFF, 6);
memset(ð_tx_buf[6], 0, 6);
eth_tx_buf[12] = 0x80;
eth_tx_buf[13] = 0x9a;
return SUCCESS;
}
/***********************************************************************************
* @fn halRfRxInterruptConfig
*
* @brief Enable RX interrupt.
*
* @param none
*
* @return none
*/
void halRfRxInterruptConfig(ISR_FUNC_PTR pfISR)
{
halDigioIntSetEdge(&pinRadio_GPIO0, HAL_DIGIO_INT_RISING_EDGE);
halDigioIntConnect(&pinRadio_GPIO0, pfISR);
halDigioIntEnable(&pinRadio_GPIO0);
// And clear the exception
CLEAR_EXC_RX_FRM_DONE();
}
/***********************************************************************************
* @fn halRfRxInterruptConfig
*
* @brief Enable RX interrupt.
*
* @param none
*
* @return none
*/
void halRfRxInterruptConfig(ISR_FUNC_PTR pfISR)
{
// SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
// GPIOPinTypeGPIOInput(GPIO_PORTD_BASE, GPIO_PIN_1); /* Default pin is Push-pull.*/
GPIOPadConfigSet(GPIO_PORTD_BASE, GPIO_PIN_0, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
GPIOIntTypeSet(GPIO_PORTD_BASE, GPIO_PIN_0, GPIO_RISING_EDGE); /* Rising edge is active.*/
GPIOPortIntRegister(GPIO_PORTD_BASE, pfISR);
GPIOPinIntEnable(GPIO_PORTD_BASE, GPIO_PIN_0);
CLEAR_EXC_RX_FRM_DONE(); /* And clear the exception.*/
}
/***********************************************************************************
* @fn halRfDisableRxInterrupt
*
* @brief Clear and disable RX interrupt.
*
* @param none
*
* @return none
*/
void halRfDisableRxInterrupt(void)
{
// Clear the exception and the IRQ
CLEAR_EXC_RX_FRM_DONE();
#if 0 // POOH
halDigioIntClear(&pinRadio_GPIO0);
halDigioIntDisable(&pinRadio_GPIO0);
#else
EXTI_ClearITPendingBit(GPIO_EXTI_Line_RF_GPIO0);
CC2520_GPIO_0_Interrupt_Setting(DISABLE);
#endif
}
/***********************************************************************************
* @fn halRfDisableRxInterrupt
*
* @brief Clear and disable RX interrupt.
*
* @param none
*
* @return none
*/
void halRfDisableRxInterrupt(void) {
CLEAR_EXC_RX_FRM_DONE();
extChannelDisable(&EXTD1, 7);
}
void halRfRxInterruptConfig(void (*func)(void)) {
// Set function pointer
gpio0_func = func;
CLEAR_EXC_RX_FRM_DONE();
}
