Removed obsolete CRC checksum handling and debug leds
This commit is contained in:
Niclas Finne
parent
d1b22d40fa
commit
b6fd166155
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@ -32,15 +32,8 @@
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* This code is almost device independent and should be easy to port.
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*/
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#include <string.h>
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#include "contiki.h"
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#if defined(__AVR__)
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#include <avr/io.h>
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#endif
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#include "dev/leds.h"
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#include "dev/spi.h"
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#include "dev/cc2520.h"
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#include "dev/cc2520_const.h"
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@ -50,28 +43,15 @@
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#include "net/netstack.h"
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#include "sys/timetable.h"
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#define WITH_SEND_CCA 1
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#define FOOTER_LEN 2
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#ifndef CC2520_CONF_CHECKSUM
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#define CC2520_CONF_CHECKSUM 0
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#endif /* CC2520_CONF_CHECKSUM */
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#include <string.h>
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#ifndef CC2520_CONF_AUTOACK
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#define CC2520_CONF_AUTOACK 0
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#endif /* CC2520_CONF_AUTOACK */
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#if CC2520_CONF_CHECKSUM
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#include "lib/crc16.h"
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#define CHECKSUM_LEN 2
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#else
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#define CHECKSUM_LEN 0
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#endif /* CC2520_CONF_CHECKSUM */
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#define AUX_LEN (CHECKSUM_LEN + FOOTER_LEN)
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#define WITH_SEND_CCA 0
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#define FOOTER_LEN 2
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#define FOOTER1_CRC_OK 0x80
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#define FOOTER1_CORRELATION 0x7f
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@ -84,10 +64,8 @@
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#define PRINTF(...)
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#endif
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#define DEBUG_LEDS DEBUG
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#undef LEDS_ON
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#undef LEDS_OFF
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#if DEBUG_LEDS
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#if 0 && DEBUG
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#include "dev/leds.h"
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#define LEDS_ON(x) leds_on(x)
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#define LEDS_OFF(x) leds_off(x)
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#else
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@ -299,8 +277,9 @@ cc2520_init(void)
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clock_delay(125);
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stat1 = status();
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while(!(stat1 & 0x80))
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while(!(stat1 & 0x80)) {
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stat1 = status();
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}
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/* Change default values as recommended in the data sheet, */
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/* correlation threshold = 20, RX bandpass filter = 1.3uA.*/
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@ -361,26 +340,21 @@ cc2520_init(void)
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static int
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cc2520_transmit(unsigned short payload_len)
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{
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uint16_t reg;
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int i, txpower;
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uint8_t total_len;
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#if CC2520_CONF_CHECKSUM
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uint16_t checksum;
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#endif /* CC2520_CONF_CHECKSUM */
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GET_LOCK();
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#if (DEBUG == 1)
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P8OUT &= ~BIT6; // TODO LED FLASH for the debug on transmission
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#endif
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LEDS_ON(LEDS_RED);
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txpower = 0;
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if(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) > 0) {
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/* Remember the current transmission power */
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txpower = cc2520_get_txpower();
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/* Set the specified transmission power */
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//TODOset_txpower(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) - 1);
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set_txpower(packetbuf_attr(PACKETBUF_ATTR_RADIO_TXPOWER) - 1);
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}
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total_len = payload_len + AUX_LEN;
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/* The TX FIFO can only hold one packet. Make sure to not overrun
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* FIFO by waiting for transmission to start here and synchronizing
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* with the CC2520_TX_ACTIVE check in cc2520_send.
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@ -446,11 +420,14 @@ cc2520_transmit(unsigned short payload_len)
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set_txpower(txpower & 0xff);
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}
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reg = getreg(CC2520_EXCFLAG0);
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RELEASE_LOCK();
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if (getreg(CC2520_EXCFLAG0) & TX_FRM_DONE )
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return RADIO_TX_OK;
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else
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return RADIO_TX_COLLISION;
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if (reg & TX_FRM_DONE) {
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return RADIO_TX_OK;
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} else {
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return RADIO_TX_COLLISION;
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}
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}
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}
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@ -472,9 +449,6 @@ static int
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cc2520_prepare(const void *payload, unsigned short payload_len)
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{
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uint8_t total_len;
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#if CC2520_CONF_CHECKSUM
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uint16_t checksum;
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#endif /* CC2520_CONF_CHECKSUM */
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GET_LOCK();
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PRINTF("cc2520: sending %d bytes\n", payload_len);
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@ -490,15 +464,9 @@ cc2520_prepare(const void *payload, unsigned short payload_len)
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/* Write packet to TX FIFO. */
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strobe(CC2520_INS_SFLUSHTX);
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#if CC2520_CONF_CHECKSUM
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checksum = crc16_data(payload, payload_len, 0);
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#endif /* CC2520_CONF_CHECKSUM */
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total_len = payload_len + AUX_LEN;
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total_len = payload_len + FOOTER_LEN;
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CC2520_WRITE_FIFO_BUF(&total_len, 1);
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CC2520_WRITE_FIFO_BUF(payload, payload_len);
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#if CC2520_CONF_CHECKSUM
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CC2520_WRITE_FIFO_BUF(&checksum, CHECKSUM_LEN);
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#endif /* CC2520_CONF_CHECKSUM */
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RELEASE_LOCK();
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return 0;
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@ -685,7 +653,7 @@ PROCESS_THREAD(cc2520_process, ev, data)
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TIMETABLE_TIMESTAMP(cc2520_timetable, "end");
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timetable_aggregate_compute_detailed(&aggregate_time,
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&cc2520_timetable);
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timetable_clear(&cc2520_timetable);
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timetable_clear(&cc2520_timetable);
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#endif /* CC2520_TIMETABLE_PROFILING */
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}
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@ -697,16 +665,11 @@ cc2520_read(void *buf, unsigned short bufsize)
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{
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uint8_t footer[2];
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uint8_t len;
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#if CC2520_CONF_CHECKSUM
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uint16_t checksum;
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#endif /* CC2520_CONF_CHECKSUM */
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if((!CC2520_FIFOP_IS_1) & !(getreg(CC2520_EXCFLAG1) & RX_FRM_DONE)) {
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return 0;
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}
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#if (DEBUG == 1)
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P2OUT &= ~BIT4; // TODO LED FLASH for the debug on reception
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#endif
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LEDS_ON(LEDS_GREEN); // TODO LED FLASH for the debug on reception
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//BUSYWAIT_UNTIL( (status() & BV(CC2520_RX_ACTIVE)) , RTIMER_SECOND / 100);
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//BUSYWAIT_UNTIL(getreg(CC2520_EXCFLAG1) & RX_FRM_DONE , RTIMER_SECOND / 100);
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@ -730,38 +693,25 @@ cc2520_read(void *buf, unsigned short bufsize)
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return 0;
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}
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if(len <= AUX_LEN) {
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if(len <= FOOTER_LEN) {
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flushrx();
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RIMESTATS_ADD(tooshort);
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RELEASE_LOCK();
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return 0;
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}
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if(len - AUX_LEN > bufsize) {
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if(len - FOOTER_LEN > bufsize) {
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flushrx();
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RIMESTATS_ADD(toolong);
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RELEASE_LOCK();
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return 0;
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}
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getrxdata(buf, len - AUX_LEN);
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getrxdata(buf, len - FOOTER_LEN);
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#if CC2520_CONF_CHECKSUM
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getrxdata(&checksum, CHECKSUM_LEN);
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#endif /* CC2520_CONF_CHECKSUM */
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getrxdata(footer, FOOTER_LEN);
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#if CC2520_CONF_CHECKSUM
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if(checksum != crc16_data(buf, len - AUX_LEN, 0)) {
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PRINTF("checksum failed 0x%04x != 0x%04x\n",
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checksum, crc16_data(buf, len - AUX_LEN, 0));
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}
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if(footer[1] & FOOTER1_CRC_OK &&
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checksum == crc16_data(buf, len - AUX_LEN, 0)) {
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#else
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if(footer[1] & FOOTER1_CRC_OK) {
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#endif /* CC2520_CONF_CHECKSUM */
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cc2520_last_rssi = footer[0];
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cc2520_last_correlation = footer[1] & FOOTER1_CORRELATION;
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@ -773,7 +723,7 @@ cc2520_read(void *buf, unsigned short bufsize)
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} else {
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RIMESTATS_ADD(badcrc);
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len = AUX_LEN;
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len = FOOTER_LEN;
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}
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if(CC2520_FIFOP_IS_1) {
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@ -790,11 +740,11 @@ cc2520_read(void *buf, unsigned short bufsize)
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RELEASE_LOCK();
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if(len < AUX_LEN) {
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if(len < FOOTER_LEN) {
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return 0;
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}
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return len - AUX_LEN;
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return len - FOOTER_LEN;
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}
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/*---------------------------------------------------------------------------*/
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void
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