From 7f4861c9ea91d8e4afa92d6451d86c26c3133e66 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sun, 27 Sep 2009 12:23:23 +0000
Subject: [PATCH] git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1187
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/io/platforms/AT91SAM7X/mac_lld.c | 4 ++--
 os/io/platforms/AT91SAM7X/mac_lld.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/os/io/platforms/AT91SAM7X/mac_lld.c b/os/io/platforms/AT91SAM7X/mac_lld.c
index e770e0474..55874bab8 100644
--- a/os/io/platforms/AT91SAM7X/mac_lld.c
+++ b/os/io/platforms/AT91SAM7X/mac_lld.c
@@ -269,7 +269,7 @@ void mac_lld_release_transmit_descriptor(MACDriver *macp,
  */
 uint8_t *mac_lld_get_transmit_buffer(MACTransmitDescriptor *tdp) {
 
-  return NULL;
+  return (uint8_t *)(tdp->w1 & W1_T_ADDRESS_MASK);
 }
 
 /**
@@ -307,7 +307,7 @@ void mac_lld_release_receive_descriptor(MACDriver *macp,
  */
 uint8_t *mac_lld_get_receive_buffer(MACReceiveDescriptor *rdp) {
 
-  return NULL;
+  return (uint8_t *)(rdp->w1 & W1_R_ADDRESS_MASK);
 }
 
 /** @} */
diff --git a/os/io/platforms/AT91SAM7X/mac_lld.h b/os/io/platforms/AT91SAM7X/mac_lld.h
index c854c0029..a3ba3decd 100644
--- a/os/io/platforms/AT91SAM7X/mac_lld.h
+++ b/os/io/platforms/AT91SAM7X/mac_lld.h
@@ -76,6 +76,8 @@
 #define W2_R_MULTICAST_MATCH    0x40000000
 #define W2_R_BROADCAST_DETECTED 0x80000000
 
+#define W1_T_ADDRESS_MASK       0xFFFFFFFF
+
 #define W2_T_LENGTH_MASK        0x000007FF
 #define W2_T_LOCKED             0x00000800 /* Not an EMAC flag, used by the driver */
 #define W2_T_RFU1               0x00003000