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waiting for valid RSSI bugfix, minor cleanup
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@ -28,7 +28,7 @@
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*
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*
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* This file is part of the Contiki operating system.
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* This file is part of the Contiki operating system.
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*
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*
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* @(#)$Id: simple-cc2420.c,v 1.12 2007/10/25 09:38:15 adamdunkels Exp $
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* @(#)$Id: simple-cc2420.c,v 1.13 2007/10/25 13:29:21 adamdunkels Exp $
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*/
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*/
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/*
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/*
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* This code is almost device independent and should be easy to port.
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* This code is almost device independent and should be easy to port.
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@ -255,14 +255,11 @@ simple_cc2420_send(const u8_t *payload, u16_t payload_len)
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/* Wait for previous transmission to finish and RSSI. */
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/* Wait for previous transmission to finish and RSSI. */
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do {
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do {
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spiStatusByte = status();
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spiStatusByte = status();
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if(!(spiStatusByte & BV(CC2420_RSSI_VALID))) { /* RSSI needed by CCA */
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} while(spiStatusByte & BV(CC2420_TX_ACTIVE) &&
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continue;
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!(spiStatusByte & BV(CC2420_RSSI_VALID)));
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}
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} while(spiStatusByte & BV(CC2420_TX_ACTIVE));
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/* Write packet to TX FIFO, appending FCS if AUTOCRC is enabled. */
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strobe(CC2420_SFLUSHTX); /* Cancel send that never started. */
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/* Write packet to TX FIFO. */
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strobe(CC2420_SFLUSHTX);
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{
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{
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u8_t total_len = /*2 +*/ payload_len + 2; /* 2 bytes time stamp,
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u8_t total_len = /*2 +*/ payload_len + 2; /* 2 bytes time stamp,
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@ -310,7 +307,7 @@ simple_cc2420_send(const u8_t *payload, u16_t payload_len)
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ENERGEST_OFF(ENERGEST_TYPE_TRANSMIT);
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ENERGEST_OFF(ENERGEST_TYPE_TRANSMIT);
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ENERGEST_ON(ENERGEST_TYPE_LISTEN);
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ENERGEST_ON(ENERGEST_TYPE_LISTEN);
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RELEASE_LOCK();
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RELEASE_LOCK();
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return 0; /* Transmission has started. */
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return 0; /* Transmission has started. */
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}
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}
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}
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}
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@ -371,7 +368,7 @@ simple_cc2420_set_chan_pan_addr(unsigned channel, /* 11 - 26 */
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u8_t spiStatusByte;
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u8_t spiStatusByte;
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u16_t f = channel;
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u16_t f = channel;
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f = 5*(f - 11) + 357 + 0x4000;
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f = 5 * (f - 11) + 357 + 0x4000;
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/*
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/*
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* Writing RAM requires crystal oscillator to be stable.
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* Writing RAM requires crystal oscillator to be stable.
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*/
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*/
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@ -460,7 +457,7 @@ simple_cc2420_read(u8_t *buf, u16_t bufsize)
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RIMESTATS_ADD(tooshort);
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RIMESTATS_ADD(tooshort);
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} else if(len - 2 > bufsize) {
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} else if(len - 2 > bufsize) {
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PRINTF("simple_cc2420_read too big len=%d bufsize %d\n", len, bufsize);
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PRINTF("simple_cc2420_read too big len=%d bufsize %d\n", len, bufsize);
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// FASTSPI_READ_FIFO_GARBAGE(2);
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// FASTSPI_READ_FIFO_GARBAGE(2);
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FASTSPI_READ_FIFO_NO_WAIT(buf, bufsize);
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FASTSPI_READ_FIFO_NO_WAIT(buf, bufsize);
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FASTSPI_READ_FIFO_GARBAGE(len - bufsize - 2);
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FASTSPI_READ_FIFO_GARBAGE(len - bufsize - 2);
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FASTSPI_READ_FIFO_NO_WAIT(footer, 2);
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FASTSPI_READ_FIFO_NO_WAIT(footer, 2);
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@ -477,9 +474,6 @@ simple_cc2420_read(u8_t *buf, u16_t bufsize)
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if(footer[1] & FOOTER1_CRC_OK) {
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if(footer[1] & FOOTER1_CRC_OK) {
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simple_cc2420_last_rssi = footer[0];
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simple_cc2420_last_rssi = footer[0];
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simple_cc2420_last_correlation = footer[1] & FOOTER1_CORRELATION;
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simple_cc2420_last_correlation = footer[1] & FOOTER1_CORRELATION;
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/* if((h.fc0 & FC0_TYPE_MASK) == FC0_TYPE_DATA) {
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uip_len = len - 2;
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}*/
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RIMESTATS_ADD(llrx);
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RIMESTATS_ADD(llrx);
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} else {
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} else {
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RIMESTATS_ADD(badcrc);
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RIMESTATS_ADD(badcrc);
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