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fix a race condition regarding advancement of the softclock. Without

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this, the advancment would fail to trigger a tx cycle
occasionally. This would cause the packet to get deferred until the
next expiration of the softclock.
This commit is contained in:
maralvira 2011-01-17 15:49:17 +00:00
parent 40bb4b80dc
commit ca098db611
1 changed files with 2 additions and 2 deletions
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4
cpu/mc1322x/lib/maca.c
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@ -30,7 +30,7 @@
* This file is part of libmc1322x: see http://mc1322x.devl.org * This file is part of libmc1322x: see http://mc1322x.devl.org
* for details. * for details.
* *
* $Id: maca.c,v 1.6 2010/11/07 14:06:58 maralvira Exp $ * $Id: maca.c,v 1.7 2011/01/17 15:49:17 maralvira Exp $
*/ */
#include <mc1322x.h> #include <mc1322x.h>
@ -461,7 +461,7 @@ void tx_packet(volatile packet_t *p) {
if(bit_is_set(*NIPEND, INT_NUM_MACA)) { *INTFRC = (1 << INT_NUM_MACA); } if(bit_is_set(*NIPEND, INT_NUM_MACA)) { *INTFRC = (1 << INT_NUM_MACA); }
if(last_post == NO_POST) { *INTFRC = (1<<INT_NUM_MACA); } if(last_post == NO_POST) { *INTFRC = (1<<INT_NUM_MACA); }
/* if we are in a reception cycle, advance the softclock timeout to now */ /* if we are in a reception cycle, advance the softclock timeout to now */
if(last_post == RX_POST) { *MACA_SFTCLK = *MACA_CLK; } if(last_post == RX_POST) { *MACA_SFTCLK = *MACA_CLK + CLK_PER_BYTE; }
return; return;
} }