156 lines
3.6 KiB
C
156 lines
3.6 KiB
C
/**
|
|
* \file
|
|
* CC2430 RF driver
|
|
* \author
|
|
* Zach Shelby <zach@sensinode.com>
|
|
*
|
|
* Non-bankable code for cc2430 rf driver.
|
|
* Interrupt routine and code called through function pointers
|
|
* 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/rime/packetbuf.h"
|
|
#include "net/rime/rimestats.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
|
|
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS(cc2430_rf_process, "CC2430 RF driver");
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* RF interrupt service routine.
|
|
*
|
|
*/
|
|
void
|
|
cc2430_rf_ISR( void ) __interrupt (RF_VECTOR)
|
|
{
|
|
EA = 0;
|
|
if(RFIF & IRQ_TXDONE) {
|
|
RF_TX_LED_OFF();
|
|
RFIF &= ~IRQ_TXDONE;
|
|
cc2430_rf_command(ISFLUSHTX);
|
|
}
|
|
if(RFIF & IRQ_FIFOP) {
|
|
if(RFSTATUS & FIFO) {
|
|
RF_RX_LED_ON();
|
|
/* Poll the RF process which calls cc2430_rf_read() */
|
|
process_poll(&cc2430_rf_process);
|
|
} else {
|
|
cc2430_rf_command(ISFLUSHRX);
|
|
cc2430_rf_command(ISFLUSHRX);
|
|
RFIF &= ~IRQ_FIFOP;
|
|
}
|
|
}
|
|
S1CON &= ~(RFIF_0 | RFIF_1);
|
|
EA = 1;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* RF error interrupt service routine.
|
|
*
|
|
*/
|
|
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;
|
|
}
|
|
|
|
void (* receiver_callback)(const struct radio_driver *);
|
|
|
|
void
|
|
cc2430_rf_set_receiver(void (* recv)(const struct radio_driver *))
|
|
{
|
|
receiver_callback = recv;
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/*
|
|
* non-banked functions called through function pointers then call banked code
|
|
*/
|
|
int
|
|
cc2430_rf_off(void)
|
|
{
|
|
return cc2430_rf_rx_disable();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cc2430_rf_on(void)
|
|
{
|
|
return cc2430_rf_rx_enable();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cc2430_rf_send(void *payload, unsigned short payload_len)
|
|
{
|
|
return cc2430_rf_send_b(payload, payload_len);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
cc2430_rf_read(void *buf, unsigned short bufsize)
|
|
{
|
|
return cc2430_rf_read_banked(buf, bufsize);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS_THREAD(cc2430_rf_process, ev, data)
|
|
{
|
|
PROCESS_BEGIN();
|
|
while(1) {
|
|
PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
|
|
|
|
if(receiver_callback != NULL) {
|
|
PRINTF("cc2430_rf_process: calling receiver callback\n");
|
|
receiver_callback(&cc2430_rf_driver);
|
|
} else {
|
|
PRINTF("cc2430_rf_process: no receiver callback\n");
|
|
cc2430_rf_command(ISFLUSHRX);
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|