Merge pull request #1395 from uknoblic/cc1200
cc1200: Make it more suitable for contikimac + bugfix in rx restart routine
This commit is contained in:
Antonio Lignan
commit
f0c3d29e8a
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@ -159,9 +159,7 @@
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#define CC1200_DEFAULT_CHANNEL CC1200_CONF_DEFAULT_CHANNEL
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#else
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/* 868.325 MHz */
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//#define CC1200_DEFAULT_CHANNEL 26
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/* 865.725 MHz */
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#define CC1200_DEFAULT_CHANNEL 13
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#define CC1200_DEFAULT_CHANNEL 26
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#endif
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/*---------------------------------------------------------------------------*/
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/*
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@ -182,11 +180,19 @@
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#endif
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/*---------------------------------------------------------------------------*/
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/*
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* If CC1200_AUTOCAL is 0, a timeout is used to decide when to calibrate when
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* going to TX.
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* If CC1200_AUTOCAL is not set, we use this parameter to defer
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* calibration until a certain amount of time has expired.
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*
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* Therefore, we don't calibrate every time we transmit. Set this parameter
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* to 0 when this feature is not used.
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* This is what happens in detail:
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*
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* - We (manually) calibrate once after initialization
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* - We (manually) calibrate every time we change the channel
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* - We (manually) calibrate when the radio is turned on() only if
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* the timeout has expired
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* - We (manually) calibrate when transmitting only of the timeout has expired
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*
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* Set this parameter to 0 when this feature is not used. In this case we
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* (manually) calibrate in all situations mentioned above.
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*/
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#ifdef CC1200_CONF_CAL_TIMEOUT_SECONDS
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#define CC1200_CAL_TIMEOUT_SECONDS CC1200_CONF_CAL_TIMEOUT_SECONDS
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@ -57,7 +57,6 @@
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* - 3: Print errors + warnings + information (what's going on...)
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*/
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#define DEBUG_LEVEL 2
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/*
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* RF test mode. Blocks inside "configure()".
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* - Set this parameter to 1 in order to produce an modulated carrier (PN9)
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@ -68,6 +67,7 @@
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#ifndef CC1200_RF_TESTMODE
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#define CC1200_RF_TESTMODE 0
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#endif
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#if CC1200_RF_TESTMODE
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#undef CC1200_RF_CFG
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#if CC1200_RF_TESTMODE == 1
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@ -248,6 +248,12 @@ extern const cc1200_rf_cfg_t CC1200_RF_CFG;
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#define RF_UPDATE_CHANNEL 0x10
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/* SPI was locked when calling RX interrupt, let the pollhandler do the job */
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#define RF_POLL_RX_INTERRUPT 0x20
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/* Force calibration in case we don't use CC1200 AUTOCAL + timeout */
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#if !CC1200_AUTOCAL
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#if CC1200_CAL_TIMEOUT_SECONDS
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#define RF_FORCE_CALIBRATION 0x40
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#endif
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#endif
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/*---------------------------------------------------------------------------*/
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/* Length of 802.15.4 ACK. We discard packets with a smaller size */
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#define ACK_LEN 3
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@ -403,10 +409,10 @@ static uint8_t rf_flags = 0;
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/* Use a timeout to decide when to calibrate */
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static unsigned long cal_timer;
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#endif
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#if USE_RX_WATCHDOG
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#if CC1200_USE_RX_WATCHDOG
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/* Timer used for RX watchdog */
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static struct etimer et;
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#endif
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#endif /* #if CC1200_USE_RX_WATCHDOG */
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/*---------------------------------------------------------------------------*/
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/* Prototypes for Netstack API radio driver functions */
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/*---------------------------------------------------------------------------*/
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@ -557,15 +563,15 @@ PROCESS_THREAD(cc1200_process, ev, data)
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PROCESS_BEGIN();
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#if USE_RX_WATCHDOG && !CC1200_SNIFFER
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#if CC1200_USE_RX_WATCHDOG && !CC1200_SNIFFER
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/* RX watchdog interferes with sniffer. Reason unknown... */
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while(1) {
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if((rf_flags & (RF_ON | RF_TX_ACTIVE)) == RF_ON) {
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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etimer_reset(&et);
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if((rf_flags & (RF_ON | RF_TX_ACTIVE)) == RF_ON) {
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/*
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* We are on and not in TX. As every function of this driver
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* assures that we are in RX mode
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@ -593,10 +599,12 @@ PROCESS_THREAD(cc1200_process, ev, data)
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}
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} else {
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PROCESS_YIELD();
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}
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}
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#endif /* #if USE_RX_WATCHDOG */
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#endif /* #if CC1200_USE_RX_WATCHDOG */
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PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_EXIT);
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@ -689,19 +697,18 @@ init(void)
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RELEASE_SPI();
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/* Set default channel */
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/* Set default channel. This will also force initial calibration! */
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set_channel(CC1200_DEFAULT_CHANNEL);
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/*
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* We have to call off() before on() because on() relies on the
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* configuration of the GPIO0 pin (even if we turn the radio on in
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* sniffer mode afterwards)
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* configuration of the GPIO0 pin
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*/
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off();
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#if CC1200_SNIFFER
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on();
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#endif
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/* #if CC1200_SNIFFER */
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/* on(); */
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/* #endif */
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}
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@ -787,15 +794,8 @@ transmit(unsigned short transmit_len)
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#if !CC1200_AUTOCAL
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/* Perform manual calibration unless just turned on */
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if(!was_off) {
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#if CC1200_CAL_TIMEOUT_SECONDS
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/* Calibrate after a delay defined by CC1200_CAL_TIMEOUT_SECONDS */
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if((clock_seconds() - cal_timer) > CC1200_CAL_TIMEOUT_SECONDS) {
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calibrate();
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}
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#else
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calibrate();
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#endif
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}
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#endif
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RIMESTATS_ADD(lltx);
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@ -824,6 +824,9 @@ transmit(unsigned short transmit_len)
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ret = RADIO_TX_ERR;
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if(!was_off) {
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#ifdef RF_FORCE_CALIBRATION
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rf_flags |= RF_FORCE_CALIBRATION;
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#endif
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idle_calibrate_rx();
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}
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}
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@ -1059,9 +1062,11 @@ on(void)
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RELEASE_SPI();
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#if USE_RX_WATCHDOG
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#if CC1200_USE_RX_WATCHDOG
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PROCESS_CONTEXT_BEGIN(&cc1200_process);
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etimer_set(&et, CLOCK_SECOND);
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#endif
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PROCESS_CONTEXT_END(&cc1200_process);
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#endif /* #if CC1200_USE_RX_WATCHDOG */
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} else {
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INFO("RF: Already on\n");
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@ -1103,9 +1108,9 @@ off(void)
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RELEASE_SPI();
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#if USE_RX_WATCHDOG
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#if CC1200_USE_RX_WATCHDOG
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etimer_stop(&et);
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#endif
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#endif /* #if CC1200_USE_RX_WATCHDOG */
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} else {
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INFO("RF: Already off\n");
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@ -1664,6 +1669,15 @@ static void
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calibrate(void)
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{
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#ifdef RF_FORCE_CALIBRATION
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if (!(rf_flags & RF_FORCE_CALIBRATION)
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&& ((clock_seconds() - cal_timer) < CC1200_CAL_TIMEOUT_SECONDS)) {
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/* Timeout not reached, defer calibration... */
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return;
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}
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rf_flags &= ~RF_FORCE_CALIBRATION;
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#endif
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INFO("RF: Calibrate\n");
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strobe(CC1200_SCAL);
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@ -1738,11 +1752,7 @@ rx_rx(void)
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uint8_t s = state();
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if(s == STATE_RX) {
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/* Already in RX. Flush RX FIFO */
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single_write(CC1200_RXFIRST,
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single_read(CC1200_RXLAST));
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} else if(s == STATE_IDLE) {
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if(s == STATE_IDLE) {
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/* Proceed to rx */
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} else if(s == STATE_RX_FIFO_ERR) {
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WARNING("RF: RX FIFO error!\n");
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@ -1762,11 +1772,9 @@ rx_rx(void)
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/* Clear pending GPIO interrupts */
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ENABLE_GPIO_INTERRUPTS();
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if(s != STATE_RX) {
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strobe(CC1200_SFRX);
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strobe(CC1200_SRX);
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BUSYWAIT_UNTIL_STATE(STATE_RX, RTIMER_SECOND / 100);
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}
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}
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/*---------------------------------------------------------------------------*/
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@ -2083,6 +2091,9 @@ set_channel(uint8_t channel)
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/* Turn on RX again unless we turn off anyway */
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if(!was_off) {
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#ifdef RF_FORCE_CALIBRATION
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rf_flags |= RF_FORCE_CALIBRATION;
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#endif
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idle_calibrate_rx();
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}
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