From 48c87272fef9287a301176e9a83737fb5e78ba51 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 10 Jan 2009 15:02:43 +0000
Subject: [PATCH] git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@608
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 ports/ARM7-AT91SAM7X/chcore.c | 2 ++
 ports/ARM7-LPC214x/chcore.c   | 2 ++
 ports/ARM7/chcore.h           | 7 +++++++
 ports/MSP430/chcore.h         | 4 ++--
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/ports/ARM7-AT91SAM7X/chcore.c b/ports/ARM7-AT91SAM7X/chcore.c
index d2a77950a..1d40a840a 100644
--- a/ports/ARM7-AT91SAM7X/chcore.c
+++ b/ports/ARM7-AT91SAM7X/chcore.c
@@ -48,7 +48,9 @@ void sys_puts(char *msg) {
 __attribute__((weak))
 void sys_wait_for_interrupt(void) {
 
+#if ENABLE_WFI_IDLE != 0
   PCON = 1;
+#endif
 }
 
 /**
diff --git a/ports/ARM7-LPC214x/chcore.c b/ports/ARM7-LPC214x/chcore.c
index 8969e8ee7..858214ea3 100644
--- a/ports/ARM7-LPC214x/chcore.c
+++ b/ports/ARM7-LPC214x/chcore.c
@@ -48,7 +48,9 @@ void sys_puts(char *msg) {
 __attribute__((weak))
 void sys_wait_for_interrupt(void) {
 
+#if ENABLE_WFI_IDLE != 0
   PCON = 1;
+#endif
 }
 
 /**
diff --git a/ports/ARM7/chcore.h b/ports/ARM7/chcore.h
index ae914b8bd..a446fdb7e 100644
--- a/ports/ARM7/chcore.h
+++ b/ports/ARM7/chcore.h
@@ -25,6 +25,13 @@
 #ifndef _CHCORE_H_
 #define _CHCORE_H_
 
+/**
+ * If enabled allows the idle thread to enter a low power mode.
+ */
+#ifndef ENABLE_WFI_IDLE
+#define ENABLE_WFI_IDLE 0
+#endif
+
 /**
  * Macro defining the ARM7 architecture.
  */
diff --git a/ports/MSP430/chcore.h b/ports/MSP430/chcore.h
index 6481d8658..7f27c3f8b 100644
--- a/ports/MSP430/chcore.h
+++ b/ports/MSP430/chcore.h
@@ -28,8 +28,8 @@
 #include <iomacros.h>
 #include <msp430/common.h>
 
-/*
- * Port-related configuration parameters.
+/**
+ * If enabled allows the idle thread to enter a low power mode.
  */
 #ifndef ENABLE_WFI_IDLE
 #define ENABLE_WFI_IDLE 0