Files needed to make LPC17xx EMAC RAM more configurable

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3141 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 13 insertions, 4 deletions

diff --git a/nuttx/net/send.c b/nuttx/net/send.c
index 515c350e4..14b9cea99 100644
--- a/nuttx/net/send.c
+++ b/nuttx/net/send.c
@@ -184,7 +184,6 @@ static uint16_t send_interrupt(struct uip_driver_s *dev, void *pvconn,
            * actually sent.
            */
 
-          conn->unacked = 0;
           goto end_wait;
         }
 
@@ -292,7 +291,7 @@ static uint16_t send_interrupt(struct uip_driver_s *dev, void *pvconn,
         }
     }
 
-  /* All data has been send and we are just waiting for ACK or re-tranmist
+  /* All data has been send and we are just waiting for ACK or re-transmit
    * indications to complete the send.  Check for a timeout.
    */
 
@@ -301,8 +300,8 @@ static uint16_t send_interrupt(struct uip_driver_s *dev, void *pvconn,
     {
       /* Yes.. report the timeout */
 
-      nllvdbg("TCP timeout\n");
-      pstate->snd_sent = -EAGAIN;
+      nlldbg("SEND timeout\n");
+      pstate->snd_sent = -ETIMEDOUT;
       goto end_wait;
     }
 #endif /* CONFIG_NET_SOCKOPTS && !CONFIG_DISABLE_CLOCK */
@@ -318,6 +317,10 @@ end_wait:
   pstate->snd_cb->priv    = NULL;
   pstate->snd_cb->event   = NULL;
 
+  /* There are no outstanding, unacknowledged bytes */
+
+  conn->unacked           = 0;
+
   /* Wake up the waiting thread */
 
   sem_post(&pstate->snd_sem);
@@ -447,6 +450,12 @@ ssize_t send(int sockfd, const void *buf, size_t len, int flags)
 
           state.snd_isn         = uip_tcpgetsequence(conn->sndseq);
 
+          /* There is no outstanding, unacknowledged data after this
+           * initial sequence number.
+           */
+
+          conn->unacked         = 0;
+
           /* Update the initial time for calculating timeouts */
 
 #if defined(CONFIG_NET_SOCKOPTS) && !defined(CONFIG_DISABLE_CLOCK)