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Make ContikiMAC more configurable
Allow the project / platform to provide values for CCA_SLEEP_TIME and LISTEN_TIME_AFTER_PACKET_DETECTED. This is useful for sub-ghz operation. This has been shamelessly stolen from the [Mountain Sensing project](https://github.com/feshie/contiki) @heliosfa @kmartinez
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@ -136,11 +136,15 @@ static int we_are_receiving_burst = 0;
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/* CCA_SLEEP_TIME is the time between two successive CCA checks. */
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/* CCA_SLEEP_TIME is the time between two successive CCA checks. */
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/* Add 1 when rtimer ticks are coarse */
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/* Add 1 when rtimer ticks are coarse */
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#ifdef CONTIKIMAC_CONF_CCA_SLEEP_TIME
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#define CCA_SLEEP_TIME CONTIKIMAC_CONF_CCA_SLEEP_TIME
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#else
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#if RTIMER_ARCH_SECOND > 8000
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#if RTIMER_ARCH_SECOND > 8000
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#define CCA_SLEEP_TIME RTIMER_ARCH_SECOND / 2000
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#define CCA_SLEEP_TIME RTIMER_ARCH_SECOND / 2000
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#else
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#else
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#define CCA_SLEEP_TIME (RTIMER_ARCH_SECOND / 2000) + 1
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#define CCA_SLEEP_TIME (RTIMER_ARCH_SECOND / 2000) + 1
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#endif
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#endif /* RTIMER_ARCH_SECOND > 8000 */
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#endif /* CONTIKIMAC_CONF_CCA_SLEEP_TIME */
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/* CHECK_TIME is the total time it takes to perform CCA_COUNT_MAX
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/* CHECK_TIME is the total time it takes to perform CCA_COUNT_MAX
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CCAs. */
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CCAs. */
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@ -153,7 +157,11 @@ static int we_are_receiving_burst = 0;
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/* LISTEN_TIME_AFTER_PACKET_DETECTED is the time that we keep checking
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/* LISTEN_TIME_AFTER_PACKET_DETECTED is the time that we keep checking
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for activity after a potential packet has been detected by a CCA
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for activity after a potential packet has been detected by a CCA
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check. */
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check. */
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#ifdef CONTIKIMAC_CONF_LISTEN_TIME_AFTER_PACKET_DETECTED
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#define LISTEN_TIME_AFTER_PACKET_DETECTED CONTIKIMAC_CONF_LISTEN_TIME_AFTER_PACKET_DETECTED
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#else
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#define LISTEN_TIME_AFTER_PACKET_DETECTED RTIMER_ARCH_SECOND / 80
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#define LISTEN_TIME_AFTER_PACKET_DETECTED RTIMER_ARCH_SECOND / 80
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#endif
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/* MAX_SILENCE_PERIODS is the maximum amount of periods (a period is
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/* MAX_SILENCE_PERIODS is the maximum amount of periods (a period is
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CCA_CHECK_TIME + CCA_SLEEP_TIME) that we allow to be silent before
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CCA_CHECK_TIME + CCA_SLEEP_TIME) that we allow to be silent before
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