#include "Energia.h"
#if defined(__MSP430_HAS_USCI__) || defined(__MSP430_HAS_EUSCI_A0__)
#include "usci_isr_handler.h"

/* This dummy function ensures that, when called from any module that 
 * is interested in having the USCIAB0TX_VECTOR and USCIAB0TX_VECTOR
 * installed, the linker won't strip the vectors.*/
void usci_isr_install(){}



#if defined(__MSP430_HAS_EUSCI_A0__)
__attribute__((interrupt(USCI_A0_VECTOR)))
void USCIA0_ISR(void)
{
  switch ( UCA0IV ) 
  { 
    case USCI_UART_UCRXIFG: uart_rx_isr(); break;
    case USCI_UART_UCTXIFG: uart_tx_isr(); break;
  }  
}

#else // #if defined(__MSP430_HAS_EUSCI_A0__)
/* USCI_Ax and USCI_Bx share the same TX interrupt vector.
 * UART: 
 *	USCIAB0TX_VECTOR services the UCA0TXIFG set in UC0IFG.
 *	USCIAB0RX_VECTOR services the UCA0RXIFG set in UC0IFG.
 * I2C: 
 *	USCIAB0TX_VECTOR services both UCB0TXIFG and UCB0RXIFG
 *	set in UC0IFG.
 *	USCIAB0RX_VECTOR services the state change interrupts
 *	UCSTTIFG, UCSTPIFG, UCIFG, UCALIFG set in UCB0STAT.*/

__attribute__((interrupt(USCIAB0TX_VECTOR))) 
void USCIAB0TX_ISR(void)
{
	/* USCI_A0 UART interrupt? */
	if (UC0IFG & UCA0TXIFG)
		uart_tx_isr();

	/* USCI_B0 I2C TX RX interrupt. */
	if ((UC0IFG & (UCB0TXIFG | UCB0RXIFG)) != 0)
		i2c_txrx_isr();

}

__attribute__((interrupt(USCIAB0RX_VECTOR)))
void USCIAB0RX_ISR(void)
{
	/* USCI_A0 UART interrupt? */
	if (UC0IFG & UCA0RXIFG)
		uart_rx_isr();

	/* USCI_B0 I2C state change interrupt. */
	if ((UCB0STAT & (UCALIFG | UCNACKIFG | UCSTTIFG | UCSTPIFG)) != 0)
		i2c_state_isr(); 
}
#endif // #if defined(__MSP430_HAS_EUSCI_A0__)
#endif // if defined(__MSP430_HAS_USCI__) || defined(__MSP430_HAS_EUSCI_A0__)