osd-contiki/cpu/cc2430/dev/cc2430_rf_intr.c

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/**
* \file
* CC2430 RF driver
* \author
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* Zach Shelby <zach@sensinode.com> (Original)
* George Oikonomou - <oikonomou@users.sourceforge.net>
* (recent updates for the contiki cc2430 port)
*
* Non-bankable code for cc2430 rf driver.
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* Interrupt routines must be placed into the HOME bank.
*
*/
#include <stdio.h>
#include "contiki.h"
#include "dev/radio.h"
#include "dev/cc2430_rf.h"
#include "cc2430_sfr.h"
#ifdef RF_LED_ENABLE
#include "dev/leds.h"
#endif
#include "sys/clock.h"
#include "net/packetbuf.h"
#include "net/rime/rimestats.h"
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#include "net/netstack.h"
#define DEBUG 0
#if DEBUG
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...) do {} while (0)
#endif
#ifdef RF_LED_ENABLE
#define RF_RX_LED_ON() leds_on(LEDS_RED);
#define RF_RX_LED_OFF() leds_off(LEDS_RED);
#define RF_TX_LED_ON() leds_on(LEDS_GREEN);
#define RF_TX_LED_OFF() leds_off(LEDS_GREEN);
#else
#define RF_RX_LED_ON()
#define RF_RX_LED_OFF()
#define RF_TX_LED_ON()
#define RF_TX_LED_OFF()
#endif
#ifdef HAVE_RF_ERROR
uint8_t rf_error = 0;
#endif
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PROCESS_NAME(cc2430_rf_process);
#if !NETSTACK_CONF_SHORTCUTS
/*---------------------------------------------------------------------------*/
/**
* RF interrupt service routine.
*
*/
#pragma save
#if CC_CONF_OPTIMIZE_STACK_SIZE
#pragma exclude bits
#endif
void
cc2430_rf_ISR( void ) __interrupt (RF_VECTOR)
{
EA = 0;
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ENERGEST_ON(ENERGEST_TYPE_IRQ);
/*
* We only vector here if RFSTATUS.FIFOP goes high.
* Just double check the flag.
*/
if(RFIF & IRQ_FIFOP) {
RF_RX_LED_ON();
/* Poll the RF process which calls cc2430_rf_read() */
process_poll(&cc2430_rf_process);
}
S1CON &= ~(RFIF_0 | RFIF_1);
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ENERGEST_OFF(ENERGEST_TYPE_IRQ);
EA = 1;
}
#pragma restore
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#endif
/*---------------------------------------------------------------------------*/
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#if CC2430_RFERR_INTERRUPT
/**
* RF error interrupt service routine.
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* Turned off by default, can be turned on in contiki-conf.h
*/
#pragma save
#if CC_CONF_OPTIMIZE_STACK_SIZE
#pragma exclude bits
#endif
void
cc2430_rf_error_ISR( void ) __interrupt (RFERR_VECTOR)
{
EA = 0;
TCON_RFERRIF = 0;
#ifdef HAVE_RF_ERROR
rf_error = 254;
#endif
cc2430_rf_command(ISRFOFF);
cc2430_rf_command(ISFLUSHRX);
cc2430_rf_command(ISFLUSHRX);
cc2430_rf_command(ISRXON);
RF_RX_LED_OFF();
RF_TX_LED_OFF();
EA = 1;
}
#pragma restore
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#endif
/*---------------------------------------------------------------------------*/