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listen time and off time parameters configurable from outside because cc1020 needs longer listen time.

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This commit is contained in:
nvt-se 2009-03-26 12:50:57 +00:00
parent 90b9b9bae3
commit d8caaca289
1 changed files with 18 additions and 8 deletions
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26
core/net/mac/lpp.c
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@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: lpp.c,v 1.10 2009/03/12 21:58:20 adamdunkels Exp $
* $Id: lpp.c,v 1.11 2009/03/26 12:50:57 nvt-se Exp $
*/
/**
@ -100,9 +100,19 @@ static struct queuebuf *queued_packet;
static uint8_t is_listening = 0;
#define LISTEN_TIME CLOCK_SECOND / 64
#define OFF_TIME CLOCK_SECOND * 1
#define PACKET_LIFETIME LISTEN_TIME + OFF_TIME
#ifdef LPP_CONF_LISTEN_TIME
#define LPP_LISTEN_TIME LPP_CONF_LISTEN_TIME
#else
#define LPP_LISTEN_TIME CLOCK_SECOND / 64
#endif /* LPP_CONF_LISTEN_TIME */
#ifdef LPP_CONF_OFF_TIME
#define LPP_OFF_TIME LPP_CONF_OFF_TIME
#else
#define LPP_OFF_TIME CLOCK_SECOND * 1
#endif /* LPP_CONF_OFF_TIME */
#define PACKET_LIFETIME LPP_LISTEN_TIME + LPP_OFF_TIME
#define DUMP_QUEUED_PACKET 0
@ -187,7 +197,7 @@ dutycycle(void *ptr)
while(1) {
turn_radio_on();
send_probe();
ctimer_set(t, LISTEN_TIME, (void (*)(void *))dutycycle, t);
ctimer_set(t, LPP_LISTEN_TIME, (void (*)(void *))dutycycle, t);
PT_YIELD(&pt);
if(queued_packet == NULL) {
@ -196,12 +206,12 @@ dutycycle(void *ptr)
/* There is a bit of randomness here right now to avoid collisions
due to synchronization effects. Not sure how needed it is
though. XXX */
ctimer_set(t, OFF_TIME / 2 + (random_rand() % (OFF_TIME / 2)),
ctimer_set(t, LPP_OFF_TIME / 2 + (random_rand() % (LPP_OFF_TIME / 2)),
(void (*)(void *))dutycycle, t);
PT_YIELD(&pt);
} else {
is_listening--;
ctimer_set(t, OFF_TIME,
ctimer_set(t, LPP_OFF_TIME,
(void (*)(void *))dutycycle, t);
PT_YIELD(&pt);
}
@ -406,7 +416,7 @@ lpp_init(const struct radio_driver *d)
{
radio = d;
radio->set_receive_function(input_packet);
ctimer_set(&timer, LISTEN_TIME, (void (*)(void *))dutycycle, &timer);
ctimer_set(&timer, LPP_LISTEN_TIME, (void (*)(void *))dutycycle, &timer);
announcement_register_listen_callback(listen_callback);