From abe923d2ef6475d22ee11da4830f6f1626a0cad7 Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Thu, 9 Jun 2011 20:49:36 -0300
Subject: [PATCH] atrf-xmit: use receive interrupt instead of polling

- atrf-xmit.c (xfer_one): use wait_for_interrupt instead of polling
- atrf-xmit.c (xfer_one): fail if there's an unexpected receiver
  interrupt
---
 tools/atrf-xmit/atrf-xmit.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/atrf-xmit/atrf-xmit.c b/tools/atrf-xmit/atrf-xmit.c
index 2ae6d9d..af57e42 100644
--- a/tools/atrf-xmit/atrf-xmit.c
+++ b/tools/atrf-xmit/atrf-xmit.c
@@ -72,10 +72,15 @@ static int xfer_one(struct atrf_dsc *tx, struct atrf_dsc *rx)
 	uint8_t buf[PSDU_SIZE+1]; /* +1 for LQI */
 	int n, i;
 
+	if (atrf_interrupt(rx)) {
+		fprintf(stderr, "unexpected receiver interrupt\n");
+		exit(1);
+	}
+
 	atrf_slp_tr(tx, 1, 1);
-#if 0
+#if 1
 	irq = wait_for_interrupt(rx, IRQ_TRX_END, IRQ_TRX_END | IRQ_RX_START,
-	    1000, 5); /* 5 ms */
+	    1000, 0);
 #else
 	/*
 	 * Just waiting for the maximum time is much faster than polling the