diff options
Diffstat (limited to 'drivers/char/ftape/lowlevel/ftape-tracing.c')
| -rw-r--r-- | drivers/char/ftape/lowlevel/ftape-tracing.c | 118 |
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 000000000000..7fdc6567440b --- /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); +} |