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Diffstat (limited to 'drivers/char/ftape/lowlevel/ftape-tracing.c')
-rw-r--r--drivers/char/ftape/lowlevel/ftape-tracing.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/char/ftape/lowlevel/ftape-tracing.c b/drivers/char/ftape/lowlevel/ftape-tracing.c
new file mode 100644
index 0000000..7fdc656
--- /dev/null
+++ b/drivers/char/ftape/lowlevel/ftape-tracing.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 1993-1996 Bas Laarhoven,
+ * (C) 1996-1997 Claus-Justus Heine.
+
+ This program 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, 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; see the file COPYING. If not, write to
+ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ *
+ * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-tracing.c,v $
+ * $Revision: 1.2 $
+ * $Date: 1997/10/05 19:18:27 $
+ *
+ * This file contains the reading code
+ * for the QIC-117 floppy-tape driver for Linux.
+ */
+
+#include <linux/ftape.h>
+#include "../lowlevel/ftape-tracing.h"
+
+/* Global vars.
+ */
+/* tracing
+ * set it to: to log :
+ * 0 bugs
+ * 1 + errors
+ * 2 + warnings
+ * 3 + information
+ * 4 + more information
+ * 5 + program flow
+ * 6 + fdc/dma info
+ * 7 + data flow
+ * 8 + everything else
+ */
+ft_trace_t ftape_tracing = ft_t_info; /* Default level: information and up */
+int ftape_function_nest_level;
+
+/* Local vars.
+ */
+static __u8 trace_id;
+static char spacing[] = "* ";
+
+void ftape_trace_call(const char *file, const char *name)
+{
+ char *indent;
+
+ /* Since printk seems not to work with "%*s" format
+ * we'll use this work-around.
+ */
+ if (ftape_function_nest_level < 0) {
+ printk(KERN_INFO "function nest level (%d) < 0\n",
+ ftape_function_nest_level);
+ ftape_function_nest_level = 0;
+ }
+ if (ftape_function_nest_level < sizeof(spacing)) {
+ indent = (spacing +
+ sizeof(spacing) - 1 -
+ ftape_function_nest_level);
+ } else {
+ indent = spacing;
+ }
+ printk(KERN_INFO "[%03d]%s+%s (%s)\n",
+ (int) trace_id++, indent, file, name);
+}
+
+void ftape_trace_exit(const char *file, const char *name)
+{
+ char *indent;
+
+ /* Since printk seems not to work with "%*s" format
+ * we'll use this work-around.
+ */
+ if (ftape_function_nest_level < 0) {
+ printk(KERN_INFO "function nest level (%d) < 0\n", ftape_function_nest_level);
+ ftape_function_nest_level = 0;
+ }
+ if (ftape_function_nest_level < sizeof(spacing)) {
+ indent = (spacing +
+ sizeof(spacing) - 1 -
+ ftape_function_nest_level);
+ } else {
+ indent = spacing;
+ }
+ printk(KERN_INFO "[%03d]%s-%s (%s)\n",
+ (int) trace_id++, indent, file, name);
+}
+
+void ftape_trace_log(const char *file, const char *function)
+{
+ char *indent;
+
+ /* Since printk seems not to work with "%*s" format
+ * we'll use this work-around.
+ */
+ if (ftape_function_nest_level < 0) {
+ printk(KERN_INFO "function nest level (%d) < 0\n", ftape_function_nest_level);
+ ftape_function_nest_level = 0;
+ }
+ if (ftape_function_nest_level < sizeof(spacing)) {
+ indent = (spacing +
+ sizeof(spacing) - 1 -
+ ftape_function_nest_level);
+ } else {
+ indent = spacing;
+ }
+ printk(KERN_INFO "[%03d]%s%s (%s) - ",
+ (int) trace_id++, indent, file, function);
+}
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