/*
 *      Copyright (C) 1993-1995 Bas Laarhoven.

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: /home/bas/distr/ftape-2.03b/RCS/tracing.c,v $
 $Author: bas $
 *
 $Revision: 1.10 $
 $Date: 1995/04/22 07:30:15 $
 $State: Beta $
 *
 *      This file contains the reading code
 *      for the QIC-117 floppy-tape driver for Linux.
 */

static char RCSid[] =
"$Id: tracing.c,v 1.10 1995/04/22 07:30:15 bas Beta $";

#include "kernel-version.h"
#ifdef MODULE
# include <linux/config.h>
# include <linux/module.h>
#endif
#include "ftape.h"


/*      Global vars.
 */
/*      tracing
 *      set it to:     to get:
 *       0              bugs
 *       1              + errors
 *       2              + warnings
 *       3              + information
 *       4              + more information
 *       5              + program flow
 *       6              + fdc/dma info
 *       7              + data flow
 *       8              + everything else
 */
int tracing = 4;                /* sets default level */

#ifndef NO_TRACE_AT_ALL

byte trace_id = 0;
int function_nest_level = 0;

/*      Local vars.
 */
static char spacing[] = "*                              ";

int
trace_call( int level, char* file, char* name) {
  char* indent;

  if (tracing >= level && level <= TOP_LEVEL) {
    /*    Since printk seems not to work with "%*s" format
     *    we'll use this work-around.
     */
    if (function_nest_level < sizeof( spacing)) {
      indent = spacing + sizeof( spacing) - 1 - function_nest_level;
    } else {
      indent = spacing;
    }
    printk( "[%03d]%s+%s (%s)\n", (int) trace_id++, indent, file, name);
  }
  return function_nest_level++;
}

void
trace_exit( int level, char* file, char* name) {
  char* indent;

  if (tracing >= level && level <= TOP_LEVEL) {
    /*    Since printk seems not to work with "%*s" format
     *    we'll use this work-around.
     */
    if (function_nest_level < sizeof( spacing)) {
      indent = spacing + sizeof( spacing) - 1 - function_nest_level;
    } else {
      indent = spacing;
    }
    printk( "[%03d]%s-%s (%s)\n", (int) trace_id++, indent, file, name);
  }
}

void
trace_log( char* file, char* name)
{
  char* indent;

  /*    Since printk seems not to work with "%*s" format
   *    we'll use this work-around.
   */
  if (function_nest_level < sizeof( spacing)) {
    indent = spacing + sizeof( spacing) - 1 - function_nest_level;
  } else {
    indent = spacing;
  }
  printk( "[%03d]%s%s (%s) - ", (int) trace_id++, indent, file, name);
}

#endif /* NO_TRACE_AT_ALL */
