From: smckown <smckown@4bc1554a-c7f2-4f65-a403-e0be01f0239c>
Date: Fri, 8 May 2009 22:27:17 +0000 (+0000)
Subject: Slightly better implementation of SpiPacket.send.
X-Git-Tag: release/2.1.0-1~2
X-Git-Url: https://oss.titaniummirror.com/gitweb/?p=tinyos-2.x.git;a=commitdiff_plain;h=90538ef8f7b5039e7cfb563f0b8a02d4c75153d5

Slightly better implementation of SpiPacket.send.
---

diff --git a/tos/chips/msp430/usci/Msp430SpiP.nc b/tos/chips/msp430/usci/Msp430SpiP.nc
index b040053a..69fca5a5 100644
--- a/tos/chips/msp430/usci/Msp430SpiP.nc
+++ b/tos/chips/msp430/usci/Msp430SpiP.nc
@@ -241,7 +241,7 @@ implementation {
     }
   }
 
-  /* Return FALSE if we are in reset, so callers can clean up as appropriate. */
+  /* If we are a slave, return FALSE if the master has unasserted CSn. */
   bool sendData()
   {
     atomic {
@@ -277,6 +277,9 @@ implementation {
 	if (sendData()) {
 	  call Registers.setIeRx();
 	  return SUCCESS;
+	} else if (m_pos) {
+	  post signalSendDone();
+	  return SUCCESS;
 	} else {
 	  m_len = 0;
 	  return FAIL;