X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=drv%2Fser.c;h=8999a2fff4c812bc9c3b0ad8166c55ae1162e9e1;hb=4a5ec96c6870d42943eb1199ae2ce62948d5fd85;hp=663366753d72ef5ce29e772fc83e78cd29c6ff58;hpb=977bdf19f5de44f9dfef74b640d085eee00f456a;p=bertos.git

diff --git a/drv/ser.c b/drv/ser.c
index 66336675..8999a2ff 100755
--- a/drv/ser.c
+++ b/drv/ser.c
@@ -28,6 +28,18 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.20  2004/10/19 11:48:00  bernie
+ *#* Remove unused variable.
+ *#*
+ *#* Revision 1.19  2004/10/19 08:14:13  bernie
+ *#* Fix a few longstanding bugs wrt status handling (made by rasky on scfirm).
+ *#*
+ *#* Revision 1.18  2004/09/20 03:31:15  bernie
+ *#* Sanitize for C++.
+ *#*
+ *#* Revision 1.17  2004/09/14 21:06:07  bernie
+ *#* Use debug.h instead of kdebug.h; Spelling fixes.
+ *#*
  *#* Revision 1.16  2004/09/06 21:40:50  bernie
  *#* Move buffer handling in chip-specific driver.
  *#*
@@ -76,7 +88,7 @@
  *#*/
 
 #include <mware/formatwr.h>
-#include <drv/kdebug.h>
+#include <debug.h>
 #include "ser.h"
 #include "ser_p.h"
 #include "hw.h"
@@ -138,7 +150,7 @@ int ser_putchar(int c, struct Serial *port)
 	/* (re)trigger tx interrupt */
 	port->hw->table->enabletxirq(port->hw);
 
-	/* Avoid returning signed estended char */
+	/* Avoid returning signed extended char */
 	return (int)((unsigned char)c);
 }
 
@@ -154,8 +166,6 @@ int ser_putchar(int c, struct Serial *port)
  */
 int ser_getchar(struct Serial *port)
 {
-	int result;
-
 	if (fifo_isempty_locked(&port->rxfifo))
 	{
 #if CONFIG_SER_RXTIMEOUT != -1
@@ -176,15 +186,16 @@ int ser_getchar(struct Serial *port)
 			}
 #endif /* CONFIG_SER_RXTIMEOUT */
 		}
-		while (fifo_isempty_locked(&port->rxfifo));
+		while (fifo_isempty_locked(&port->rxfifo) && (port->status & SERRF_RX) == 0);
 	}
 
 	/*
 	 * Get a byte from the FIFO (avoiding sign-extension),
 	 * re-enable RTS, then return result.
 	 */
-	result = (int)(unsigned char)fifo_pop_locked(&port->rxfifo);
-	return port->status ? EOF : result;
+	if (port->status & SERRF_RX)
+		return EOF;
+	return (int)(unsigned char)fifo_pop_locked(&port->rxfifo);
 }
 
 
@@ -301,7 +312,7 @@ int ser_print(struct Serial *port, const char *s)
  */
 int ser_write(struct Serial *port, const void *_buf, size_t len)
 {
-	const char *buf = _buf;
+	const char *buf = (const char *)_buf;
 
 	while (len--)
 	{
@@ -321,7 +332,6 @@ int ser_printf(struct Serial *port, const char *format, ...)
 	va_list ap;
 	int len;
 
-	ser_setstatus(port, 0);
 	va_start(ap, format);
 	len = _formatted_write(format, (void (*)(char, void *))ser_putchar, port, ap);
 	va_end(ap);
@@ -341,7 +351,7 @@ void ser_settimeouts(struct Serial *port, time_t rxtimeout, time_t txtimeout)
 
 #if CONFIG_SER_RXTIMEOUT != -1
 /*!
- * Discard input to resynchronize with remote end
+ * Discard input to resynchronize with remote end.
  *
  * Discard incoming data until the port stops receiving
  * characters for at least \a delay milliseconds.
@@ -427,6 +437,8 @@ struct Serial *ser_open(unsigned int unit)
 	port->hw = ser_hw_getdesc(unit);
 
 	/* Initialize circular buffers */
+	ASSERT(port->hw->txbuffer);
+	ASSERT(port->hw->rxbuffer);
 	fifo_init(&port->txfifo, port->hw->txbuffer, port->hw->txbuffer_size);
 	fifo_init(&port->rxfifo, port->hw->rxbuffer, port->hw->rxbuffer_size);