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Add sniffer support to ADuCRF101

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This works with the examples/cc2538dk/sniffer/ project and the
corresponding "sensniff" host-side tool.
This commit is contained in:
Jim Paris 2014-06-27 22:52:27 -04:00
parent 6967fc67c1
commit a4a3eca41d
1 changed files with 29 additions and 1 deletions
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30
cpu/arm/aducrf101/dev/radio.c
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@ -58,6 +58,19 @@ static int current_channel = 915000000;
static int current_power = 31; static int current_power = 31;
static int radio_is_on = 0; static int radio_is_on = 0;
/*---------------------------------------------------------------------------*/
/* Sniffer configuration. We can re-use the CC2538 sniffer application
if we also accept CC2538_RF_CONF_SNIFFER. */
#ifndef ADUCRF101_RF_CONF_SNIFFER
#if CC2538_RF_CONF_SNIFFER
#define ADUCRF101_RF_CONF_SNIFFER 1
#endif
#endif
#if ADUCRF101_RF_CONF_SNIFFER
#include "dev/uart.h"
static const uint8_t magic[] = { 0x53, 0x6E, 0x69, 0x66 }; /* Snif */
#endif
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/* "Channel" is really frequency, and can be within the bands: /* "Channel" is really frequency, and can be within the bands:
431000000 Hz to 464000000 Hz 431000000 Hz to 464000000 Hz
@ -209,13 +222,14 @@ static int
read(void *buf, unsigned short buf_len) read(void *buf, unsigned short buf_len)
{ {
uint8_t packet_len; uint8_t packet_len;
int8_t rssi;
if(buf_len > MAX_PACKET_LEN) { if(buf_len > MAX_PACKET_LEN) {
buf_len = MAX_PACKET_LEN; buf_len = MAX_PACKET_LEN;
} }
/* Read already-received packet */ /* Read already-received packet */
if(RadioRxPacketRead(buf_len, &packet_len, buf, NULL) != RIE_Success) { if(RadioRxPacketRead(buf_len, &packet_len, buf, &rssi) != RIE_Success) {
return 0; return 0;
} }
@ -226,6 +240,20 @@ read(void *buf, unsigned short buf_len)
/* Re-enter receive mode immediately after receiving a packet */ /* Re-enter receive mode immediately after receiving a packet */
RadioRxPacketVariableLen(); RadioRxPacketVariableLen();
#if ADUCRF101_RF_CONF_SNIFFER
uart_put(magic[0]);
uart_put(magic[1]);
uart_put(magic[2]);
uart_put(magic[3]);
uart_put(packet_len + 2);
for(int i = 0; i < packet_len; i++) {
uart_put(((uint8_t *)buf)[i]);
}
/* FCS value is Wireshark's "TI CC24xx format" option: */
uart_put(rssi); /* RSSI */
uart_put(0x80); /* CRC is OK, LQI correlation is 0 */
#endif
return packet_len; return packet_len;
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/