X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Fser.c;h=10757d0e3b91b8f0b0db6f8f05bff6d215c8df6f;hb=27fef4ed34eb237817defa14242e726ccad70948;hp=d73a29348e8b8093979d0d82d017179f3aac2111;hpb=ffd018661b93d258df699ee4e86d0f2f1cccba4e;p=bertos.git

diff --git a/drv/ser.c b/drv/ser.c
old mode 100755
new mode 100644
index d73a2934..10757d0e
--- a/drv/ser.c
+++ b/drv/ser.c
@@ -1,9 +1,34 @@
 /**
  * \file
  * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
  * Copyright 2003, 2004, 2006 Develer S.r.l. (http://www.develer.com/)
  * Copyright 2000 Bernardo Innocenti <bernie@codewiz.org>
- * This file is part of DevLib - See README.devlib for information.
+ *
  * -->
  *
  * \brief Buffered serial I/O driver
@@ -28,6 +53,27 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.38  2007/06/21 17:07:21  batt
+ *#* Remove CONFIG_WATCHDOG stuff: watchdog macros expand to nothing when wdt is active.
+ *#*
+ *#* Revision 1.37  2007/06/07 14:35:12  batt
+ *#* Merge from project_ks.
+ *#*
+ *#* Revision 1.36  2007/01/29 11:30:29  batt
+ *#* Reimplement ser_clearstatus as a macro.
+ *#*
+ *#* Revision 1.35  2007/01/27 20:47:12  batt
+ *#* Add clear status.
+ *#*
+ *#* Revision 1.34  2006/11/20 15:07:40  batt
+ *#* Revert unneeded locked functions.
+ *#*
+ *#* Revision 1.33  2006/11/17 18:15:55  batt
+ *#* Avoid race conditions.
+ *#*
+ *#* Revision 1.32  2006/11/17 17:03:58  batt
+ *#* Implement ser_setstatus and ser_getstatus as functions to avoid race conditions.
+ *#*
  *#* Revision 1.31  2006/07/21 10:58:00  batt
  *#* Use timer_clock() instead of obsolete timer_ticks().
  *#*
@@ -121,6 +167,9 @@
  *#*/
 
 #include "ser.h"
+
+#include "wdt.h"
+
 #include "ser_p.h"
 #include <mware/formatwr.h>
 #include <cfg/debug.h>
@@ -186,6 +235,7 @@ int ser_putchar(int c, struct Serial *port)
 		/* Attende finche' il buffer e' pieno... */
 		do
 		{
+			wdt_reset();
 #if CONFIG_KERNEL && CONFIG_KERN_SCHED
 			/* Give up timeslice to other processes. */
 			proc_switch();
@@ -193,7 +243,7 @@ int ser_putchar(int c, struct Serial *port)
 #if CONFIG_SER_TXTIMEOUT != -1
 			if (timer_clock() - start_time >= port->txtimeout)
 			{
-				port->status |= SERRF_TXTIMEOUT;
+				ATOMIC(port->status |= SERRF_TXTIMEOUT);
 				return EOF;
 			}
 #endif /* CONFIG_SER_TXTIMEOUT */
@@ -230,6 +280,7 @@ int ser_getchar(struct Serial *port)
 		/* Wait while buffer is empty */
 		do
 		{
+			wdt_reset();
 #if CONFIG_KERNEL && CONFIG_KERN_SCHED
 			/* Give up timeslice to other processes. */
 			proc_switch();
@@ -237,19 +288,19 @@ int ser_getchar(struct Serial *port)
 #if CONFIG_SER_RXTIMEOUT != -1
 			if (timer_clock() - start_time >= port->rxtimeout)
 			{
-				port->status |= SERRF_RXTIMEOUT;
+				ATOMIC(port->status |= SERRF_RXTIMEOUT);
 				return EOF;
 			}
 #endif /* CONFIG_SER_RXTIMEOUT */
 		}
-		while (fifo_isempty_locked(&port->rxfifo) && (port->status & SERRF_RX) == 0);
+		while (fifo_isempty_locked(&port->rxfifo) && (ser_getstatus(port) & SERRF_RX) == 0);
 	}
 
 	/*
 	 * Get a byte from the FIFO (avoiding sign-extension),
 	 * re-enable RTS, then return result.
 	 */
-	if (port->status & SERRF_RX)
+	if (ser_getstatus(port) & SERRF_RX)
 		return EOF;
 	return (int)(unsigned char)fifo_pop_locked(&port->rxfifo);
 }
@@ -476,6 +527,7 @@ void ser_drain(struct Serial *ser)
 			/* Give up timeslice to other processes. */
 			proc_switch();
 		#endif
+			wdt_reset();
 	}
 }