From d0132a7702d17976d435d20811027a971fe58b34 Mon Sep 17 00:00:00 2001
From: Con Kolivas <kernel@kolivas.org>
Date: Sun, 26 May 2013 21:34:53 +1000
Subject: [PATCH] Do a wait_avalon_ready before sending a reset code.

---
 driver-avalon.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/driver-avalon.c b/driver-avalon.c
index 7792943a..fe7582e5 100644
--- a/driver-avalon.c
+++ b/driver-avalon.c
@@ -265,6 +265,15 @@ static int avalon_read(int fd, char *buf, ssize_t len)
 	return AVA_GETS_OK;
 }
 
+/* Wait until the ftdi chip returns a CTS saying we can send more data. The
+ * status is updated every 40ms. */
+static void wait_avalon_ready(int fd)
+{
+	while (avalon_buffer_full(fd) == AVA_BUFFER_FULL) {
+		nmsleep(40);
+	}
+}
+
 static int avalon_reset(struct cgpu_info *avalon, int fd)
 {
 	struct avalon_result ar;
@@ -281,6 +290,8 @@ static int avalon_reset(struct cgpu_info *avalon, int fd)
 			 AVALON_DEFAULT_MINER_NUM,
 			 0, 0,
 			 AVALON_DEFAULT_FREQUENCY);
+
+	wait_avalon_ready(fd);
 	ret = avalon_send_task(fd, &at, NULL);
 	if (unlikely(ret == AVA_SEND_ERROR))
 		return -1;
@@ -460,13 +471,6 @@ static void get_options(int this_option_offset, int *baud, int *miner_count,
 	}
 }
 
-static void wait_avalon_ready(int fd)
-{
-	while (avalon_buffer_full(fd) == AVA_BUFFER_FULL) {
-		nmsleep(40);
-	}
-}
-
 static void avalon_idle(struct cgpu_info *avalon, struct avalon_info *info,
 			int fd)
 {