From d96e9f907e17900a59247ba6d28d33c26a1c4468 Mon Sep 17 00:00:00 2001
From: Nick Foster <nick@nerdnetworks.org>
Date: Fri, 13 Aug 2010 13:07:14 -0700
Subject: Increased UART timeout for slow Jackson Labs GPSDO. Fixed up timeout
 code.

---
 firmware/microblaze/lib/hal_io.c   | 1 +
 firmware/microblaze/lib/hal_uart.c | 2 +-
 firmware/microblaze/lib/hal_uart.h | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'firmware/microblaze')

diff --git a/firmware/microblaze/lib/hal_io.c b/firmware/microblaze/lib/hal_io.c
index 0e3754958..f93b20030 100644
--- a/firmware/microblaze/lib/hal_io.c
+++ b/firmware/microblaze/lib/hal_io.c
@@ -258,6 +258,7 @@ fngets_timeout(hal_uart_name_t u, char * const s, int len)
   char *x = s;
   while(((*x=(char)hal_uart_getc_timeout(u)) != '\n') && ((x-s) < len)) x++;
 	*x = 0;
+  if(x==s) return 0;
 	return (x-s)-1;
 }
 
diff --git a/firmware/microblaze/lib/hal_uart.c b/firmware/microblaze/lib/hal_uart.c
index 4d754d5e5..9697f5b20 100644
--- a/firmware/microblaze/lib/hal_uart.c
+++ b/firmware/microblaze/lib/hal_uart.c
@@ -109,7 +109,7 @@ hal_uart_getc_timeout(hal_uart_name_t u)
   while (((uart_regs[u].rxlevel) == 0) && (timeout++ < HAL_UART_TIMEOUT_MS))
     mdelay(1);
 
-  return (uart_regs[u].rxlevel == 0) ? 0 : uart_regs[u].rxchar;
+  return (timeout == HAL_UART_TIMEOUT_MS) ? '\n' : uart_regs[u].rxchar; //return a newline if nothing there, this will trip fngets to quit
 }
 
 int hal_uart_rx_flush(hal_uart_name_t u)
diff --git a/firmware/microblaze/lib/hal_uart.h b/firmware/microblaze/lib/hal_uart.h
index b9b0a5e14..758c8cb5e 100644
--- a/firmware/microblaze/lib/hal_uart.h
+++ b/firmware/microblaze/lib/hal_uart.h
@@ -27,7 +27,7 @@
 
 #define DEFAULT_UART UART_DEBUG //which UART printf, gets, etc. use
 
-#define HAL_UART_TIMEOUT_MS 100
+#define HAL_UART_TIMEOUT_MS 300
 
 typedef enum {
   US_9600   = 0,
-- 
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