From 3cb7cab5342be9d9e793c7e43ea83a27fe1eb04f Mon Sep 17 00:00:00 2001
From: idgay <idgay>
Date: Fri, 13 Mar 2009 19:15:35 +0000
Subject: [PATCH] add a #ifdef (ATM128_I2C_EXTERNAL_PULLDOWN) to control the
 external pulldown presence

---
 tos/chips/atm128/i2c/Atm128I2C.h               | 4 ++++
 tos/chips/atm128/i2c/Atm128I2CMasterPacketP.nc | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/tos/chips/atm128/i2c/Atm128I2C.h b/tos/chips/atm128/i2c/Atm128I2C.h
index 75fd6643..94589c1f 100644
--- a/tos/chips/atm128/i2c/Atm128I2C.h
+++ b/tos/chips/atm128/i2c/Atm128I2C.h
@@ -47,4 +47,8 @@ enum {
     ATM128_I2C_MR_DATA_NACK     = 0x58
 };
 
+#ifndef ATM128_I2C_EXTERNAL_PULLDOWN
+#define ATM128_I2C_EXTERNAL_PULLDOWN FALSE
+#endif
+
 #endif // _H_Atm128I2C_h
diff --git a/tos/chips/atm128/i2c/Atm128I2CMasterPacketP.nc b/tos/chips/atm128/i2c/Atm128I2CMasterPacketP.nc
index 35cf2293..b00c4fe2 100644
--- a/tos/chips/atm128/i2c/Atm128I2CMasterPacketP.nc
+++ b/tos/chips/atm128/i2c/Atm128I2CMasterPacketP.nc
@@ -93,7 +93,7 @@ implementation {
   async command error_t AsyncStdControl.start() {
     atomic {
       if (state == I2C_OFF) {
-	call I2C.init(FALSE);
+	call I2C.init(ATM128_I2C_EXTERNAL_PULLDOWN);
 	call I2C.readCurrent();
 	call I2C.enable(TRUE);
 	call I2C.enableInterrupt(FALSE);
-- 
2.39.2