[lcd4linux @ 2005-05-08 04:32:43 by reinelt]

CodingStyle added and applied

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@547 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 329 insertions, 322 deletions

diff --git a/drv_M50530.c b/drv_M50530.c
index 93e6cd4..7e8bb75 100644
--- a/drv_M50530.c
+++ b/drv_M50530.c
@@ -1,104 +1,107 @@
-#/* $Id: drv_M50530.c,v 1.17 2005/05/05 08:36:12 reinelt Exp $
- *
- * new style driver for M50530-based displays
- *
- * Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at>
- * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
- *
- * This file is part of LCD4Linux.
- *
- * LCD4Linux 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.
- *
- * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- * $Log: drv_M50530.c,v $
- * Revision 1.17  2005/05/05 08:36:12  reinelt
- * changed SELECT to SLCTIN
- *
- * Revision 1.16  2005/01/18 06:30:23  reinelt
- * added (C) to all copyright statements
- *
- * Revision 1.15  2005/01/06 16:54:53  reinelt
- * M50530 fixes
- *
- * Revision 1.14  2004/06/26 12:04:59  reinelt
- *
- * uh-oh... the last CVS log message messed up things a lot...
- *
- * Revision 1.13  2004/06/26 09:27:20  reinelt
- *
- * added '-W' to CFLAGS
- * changed all C++ comments to C ones
- * cleaned up a lot of signed/unsigned mistakes
- *
- * Revision 1.12  2004/06/20 10:09:54  reinelt
- *
- * 'const'ified the whole source
- *
- * Revision 1.11  2004/06/06 06:51:59  reinelt
- *
- * do not display end splash screen if quiet=1
- *
- * Revision 1.10  2004/06/05 06:41:39  reinelt
- *
- * chancged splash screen again
- *
- * Revision 1.9  2004/06/05 06:13:12  reinelt
- *
- * splash screen for all text-based display drivers
- *
- * Revision 1.8  2004/06/02 09:41:19  reinelt
- *
- * prepared support for startup splash screen
- *
- * Revision 1.7  2004/06/01 06:45:29  reinelt
- *
- * some Fixme's processed
- * documented some code
- *
- * Revision 1.6  2004/05/31 05:38:02  reinelt
- *
- * fixed possible bugs with user-defined chars (clear high bits)
- * thanks to Andy Baxter for debugging the MilfordInstruments driver!
- *
- * Revision 1.5  2004/05/29 15:53:28  reinelt
- *
- * M50530: reset parport signals on exit
- * plugin_ppp: ppp() has two parameters, not three
- * lcd4linux.conf.sample: diskstats() corrected
- *
- * Revision 1.4  2004/05/26 11:37:36  reinelt
- *
- * Curses driver ported.
- *
- * Revision 1.3  2004/03/19 09:17:46  reinelt
- *
- * removed the extra 'goto' function, row and col are additional parameters
- * of the write() function now.
- *
- * Revision 1.2  2004/02/15 21:43:43  reinelt
- * T6963 driver nearly finished
- * framework for graphic displays done
- * i2c_sensors patch from Xavier
- * some more old generation files removed
- *
- * Revision 1.1  2004/02/15 08:22:47  reinelt
- * ported USBLCD driver to NextGeneration
- * added drv_M50530.c (I forgot yesterday, sorry)
- * removed old drivers M50530.c and USBLCD.c
- *
- */
+#				/* $Id: drv_M50530.c,v 1.18 2005/05/08 04:32:44 reinelt Exp $
+				 *
+				 * new style driver for M50530-based displays
+				 *
+				 * Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at>
+				 * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+				 *
+				 * This file is part of LCD4Linux.
+				 *
+				 * LCD4Linux 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.
+				 *
+				 * LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+				 *
+				 *
+				 * $Log: drv_M50530.c,v $
+				 * Revision 1.18  2005/05/08 04:32:44  reinelt
+				 * CodingStyle added and applied
+				 *
+				 * Revision 1.17  2005/05/05 08:36:12  reinelt
+				 * changed SELECT to SLCTIN
+				 *
+				 * Revision 1.16  2005/01/18 06:30:23  reinelt
+				 * added (C) to all copyright statements
+				 *
+				 * Revision 1.15  2005/01/06 16:54:53  reinelt
+				 * M50530 fixes
+				 *
+				 * Revision 1.14  2004/06/26 12:04:59  reinelt
+				 *
+				 * uh-oh... the last CVS log message messed up things a lot...
+				 *
+				 * Revision 1.13  2004/06/26 09:27:20  reinelt
+				 *
+				 * added '-W' to CFLAGS
+				 * changed all C++ comments to C ones
+				 * cleaned up a lot of signed/unsigned mistakes
+				 *
+				 * Revision 1.12  2004/06/20 10:09:54  reinelt
+				 *
+				 * 'const'ified the whole source
+				 *
+				 * Revision 1.11  2004/06/06 06:51:59  reinelt
+				 *
+				 * do not display end splash screen if quiet=1
+				 *
+				 * Revision 1.10  2004/06/05 06:41:39  reinelt
+				 *
+				 * chancged splash screen again
+				 *
+				 * Revision 1.9  2004/06/05 06:13:12  reinelt
+				 *
+				 * splash screen for all text-based display drivers
+				 *
+				 * Revision 1.8  2004/06/02 09:41:19  reinelt
+				 *
+				 * prepared support for startup splash screen
+				 *
+				 * Revision 1.7  2004/06/01 06:45:29  reinelt
+				 *
+				 * some Fixme's processed
+				 * documented some code
+				 *
+				 * Revision 1.6  2004/05/31 05:38:02  reinelt
+				 *
+				 * fixed possible bugs with user-defined chars (clear high bits)
+				 * thanks to Andy Baxter for debugging the MilfordInstruments driver!
+				 *
+				 * Revision 1.5  2004/05/29 15:53:28  reinelt
+				 *
+				 * M50530: reset parport signals on exit
+				 * plugin_ppp: ppp() has two parameters, not three
+				 * lcd4linux.conf.sample: diskstats() corrected
+				 *
+				 * Revision 1.4  2004/05/26 11:37:36  reinelt
+				 *
+				 * Curses driver ported.
+				 *
+				 * Revision 1.3  2004/03/19 09:17:46  reinelt
+				 *
+				 * removed the extra 'goto' function, row and col are additional parameters
+				 * of the write() function now.
+				 *
+				 * Revision 1.2  2004/02/15 21:43:43  reinelt
+				 * T6963 driver nearly finished
+				 * framework for graphic displays done
+				 * i2c_sensors patch from Xavier
+				 * some more old generation files removed
+				 *
+				 * Revision 1.1  2004/02/15 08:22:47  reinelt
+				 * ported USBLCD driver to NextGeneration
+				 * added drv_M50530.c (I forgot yesterday, sorry)
+				 * removed old drivers M50530.c and USBLCD.c
+				 *
+				 */
 
 /* 
  *
@@ -132,7 +135,7 @@
 #include "drv_generic_text.h"
 #include "drv_generic_parport.h"
 
-static char Name[]="M50530";
+static char Name[] = "M50530";
 
 static int Model;
 
@@ -147,13 +150,13 @@ static int GPOS;
 
 
 typedef struct {
-  int type;
-  char *name;
+    int type;
+    char *name;
 } MODEL;
 
 static MODEL Models[] = {
-  { 0x01, "generic" },
-  { 0xff, "Unknown" }
+    {0x01, "generic"},
+    {0xff, "Unknown"}
 };
 
 
@@ -161,164 +164,169 @@ static MODEL Models[] = {
 /***  hardware dependant functions    ***/
 /****************************************/
 
-static void drv_M5_command (const unsigned int cmd, const int delay)
+static void drv_M5_command(const unsigned int cmd, const int delay)
 {
-    
-  /* put data on DB1..DB8 */
-  drv_generic_parport_data (cmd & 0xff);
-
-  /* set I/OC1 */
-  /* set I/OC2 */
-  drv_generic_parport_control (SIGNAL_IOC1 | SIGNAL_IOC2, 
-			       (cmd & 0x100 ? SIGNAL_IOC1 : 0) | 
-			       (cmd & 0x200 ? SIGNAL_IOC2 : 0));
-  
-  /* Control data setup time */
-  ndelay(200);
-  
-  /* send command */
-  /* EX signal pulse width = 500ns */
-  /* Fixme: why 500 ns? Datasheet says 200ns */
-  drv_generic_parport_toggle (SIGNAL_EX, 1, 500);
-
-  /* wait */
-  udelay(delay);
+
+    /* put data on DB1..DB8 */
+    drv_generic_parport_data(cmd & 0xff);
+
+    /* set I/OC1 */
+    /* set I/OC2 */
+    drv_generic_parport_control(SIGNAL_IOC1 | SIGNAL_IOC2, (cmd & 0x100 ? SIGNAL_IOC1 : 0) | (cmd & 0x200 ? SIGNAL_IOC2 : 0));
+
+    /* Control data setup time */
+    ndelay(200);
+
+    /* send command */
+    /* EX signal pulse width = 500ns */
+    /* Fixme: why 500 ns? Datasheet says 200ns */
+    drv_generic_parport_toggle(SIGNAL_EX, 1, 500);
+
+    /* wait */
+    udelay(delay);
 
 }
 
 
-static void drv_M5_clear (void)
+static void drv_M5_clear(void)
 {
-  drv_M5_command (0x0001, 1250); /* clear display */
+    drv_M5_command(0x0001, 1250);	/* clear display */
 }
 
 
-static void drv_M5_write (const int row, const int col, const char *data, const int len)
+static void drv_M5_write(const int row, const int col, const char *data, const int len)
 {
-  int l = len;
-  unsigned int cmd;
-  unsigned int pos;
-  
-  pos = row * 48 + col;
-  if (row > 3) pos -= 168;
-  drv_M5_command (0x300 | pos, 20);
-  
-  while (l--) {
-    cmd = *(unsigned char*)data++;
-    drv_M5_command (0x200 | cmd, 20);
-  }
+    int l = len;
+    unsigned int cmd;
+    unsigned int pos;
+
+    pos = row * 48 + col;
+    if (row > 3)
+	pos -= 168;
+    drv_M5_command(0x300 | pos, 20);
+
+    while (l--) {
+	cmd = *(unsigned char *) data++;
+	drv_M5_command(0x200 | cmd, 20);
+    }
 }
 
 
-static void drv_M5_defchar (const int ascii, const unsigned char *matrix)
+static void drv_M5_defchar(const int ascii, const unsigned char *matrix)
 {
-  int i;
-  
-  drv_M5_command (0x300 + 192 + 8 * (ascii - CHAR0), 20);
-
-  /* Fixme: looks like the M50530 cannot control the bottom line */
-  /* therefore we have only 7 bytes here */
-  for (i = 0; i < 7; i++) {
-    drv_M5_command (0x200 | (matrix[i] & 0x3f), 20);
-  }
+    int i;
+
+    drv_M5_command(0x300 + 192 + 8 * (ascii - CHAR0), 20);
+
+    /* Fixme: looks like the M50530 cannot control the bottom line */
+    /* therefore we have only 7 bytes here */
+    for (i = 0; i < 7; i++) {
+	drv_M5_command(0x200 | (matrix[i] & 0x3f), 20);
+    }
 }
 
 
 /* Fixme: GPO's */
 #if 0
-static void drv_M5_setGPO (const int bits)
+static void drv_M5_setGPO(const int bits)
 {
-  if (Lcd.gpos>0) {
+    if (Lcd.gpos > 0) {
 
-    /* put data on DB1..DB8 */
-    drv_generic_parport_data (bits);
-
-    /* 74HCT573 set-up time */
-    ndelay(20);
-    
-    /* send data */
-    /* 74HCT573 enable pulse width = 24ns */
-    drv_generic_parport_toggle (SIGNAL_GPO, 1, 24);
-  }
+	/* put data on DB1..DB8 */
+	drv_generic_parport_data(bits);
+
+	/* 74HCT573 set-up time */
+	ndelay(20);
+
+	/* send data */
+	/* 74HCT573 enable pulse width = 24ns */
+	drv_generic_parport_toggle(SIGNAL_GPO, 1, 24);
+    }
 }
 #endif
 
 
-static int drv_M5_start (const char *section, const int quiet)
+static int drv_M5_start(const char *section, const int quiet)
 {
-  char *model, *s;
-  int rows=-1, cols=-1, gpos=-1;
-  
-  model=cfg_get(section, "Model", "generic");
-  if (model!=NULL && *model!='\0') {
-    int i;
-    for (i=0; Models[i].type!=0xff; i++) {
-      if (strcasecmp(Models[i].name, model)==0) break;
+    char *model, *s;
+    int rows = -1, cols = -1, gpos = -1;
+
+    model = cfg_get(section, "Model", "generic");
+    if (model != NULL && *model != '\0') {
+	int i;
+	for (i = 0; Models[i].type != 0xff; i++) {
+	    if (strcasecmp(Models[i].name, model) == 0)
+		break;
+	}
+	if (Models[i].type == 0xff) {
+	    error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source());
+	    return -1;
+	}
+	Model = i;
+	info("%s: using model '%s'", Name, Models[Model].name);
+    } else {
+	error("%s: empty '%s.Model' entry from %s", Name, section, cfg_source());
+	return -1;
+    }
+
+    s = cfg_get(section, "Size", NULL);
+    if (s == NULL || *s == '\0') {
+	error("%s: no '%s.Size' entry from %s", Name, section, cfg_source());
+	return -1;
+    }
+    if (sscanf(s, "%dx%d", &cols, &rows) != 2 || rows < 1 || cols < 1) {
+	error("%s: bad size '%s'", Name, s);
+	return -1;
     }
-    if (Models[i].type==0xff) {
-      error ("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source());
-      return -1;
+
+    if (cfg_number(section, "GPOs", 0, 0, 8, &gpos) < 0)
+	return -1;
+    info("%s: controlling %d GPO's", Name, gpos);
+
+    DROWS = rows;
+    DCOLS = cols;
+    GPOS = gpos;
+
+    if (drv_generic_parport_open(section, Name) != 0) {
+	error("%s: could not initialize parallel port!", Name);
+	return -1;
     }
-    Model=i;
-    info ("%s: using model '%s'", Name, Models[Model].name);
-  } else {
-    error ("%s: empty '%s.Model' entry from %s", Name, section, cfg_source());
-    return -1;
-  }
-  
-  s=cfg_get(section, "Size", NULL);
-  if (s==NULL || *s=='\0') {
-    error ("%s: no '%s.Size' entry from %s", Name, section, cfg_source());
-    return -1;
-  }
-  if (sscanf(s,"%dx%d",&cols,&rows)!=2 || rows<1 || cols<1) {
-    error ("%s: bad size '%s'", Name, s);
-    return -1;
-  }
-  
-  if (cfg_number(section, "GPOs", 0, 0, 8, &gpos)<0) return -1;
-  info ("%s: controlling %d GPO's", Name, gpos);
-
-  DROWS = rows;
-  DCOLS = cols;
-  GPOS  = gpos;
-  
-  if (drv_generic_parport_open(section, Name) != 0) {
-    error ("%s: could not initialize parallel port!", Name);
-    return -1;
-  }
-
-  if ((SIGNAL_EX   = drv_generic_parport_wire_ctrl ("EX",   "STROBE"))==0xff) return -1;
-  if ((SIGNAL_IOC1 = drv_generic_parport_wire_ctrl ("IOC1", "SLCTIN"))==0xff) return -1;
-  if ((SIGNAL_IOC2 = drv_generic_parport_wire_ctrl ("IOC2", "AUTOFD"))==0xff) return -1;
-  if ((SIGNAL_GPO  = drv_generic_parport_wire_ctrl ("GPO",  "GND"   ))==0xff) return -1;
-
-  /* clear all signals */
-  drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0);
-  
-  /* for any mysterious reason, this delay is necessary... */
-  udelay(2000);
-  
-  /* set direction: write */
-  drv_generic_parport_direction (0);
-  
-  drv_M5_command (0x00FA, 20);   /* set function mode */
-  drv_M5_command (0x0020, 20);   /* set display mode */
-  drv_M5_command (0x0050, 20);   /* set entry mode */
-  drv_M5_command (0x0030, 20);   /* set display mode */
-
-  drv_M5_clear();
-  
-  if (!quiet) {
-    char buffer[40];
-    qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
-    if (drv_generic_text_greet (buffer, NULL)) {
-      sleep (3);
-      drv_M5_clear();
+
+    if ((SIGNAL_EX = drv_generic_parport_wire_ctrl("EX", "STROBE")) == 0xff)
+	return -1;
+    if ((SIGNAL_IOC1 = drv_generic_parport_wire_ctrl("IOC1", "SLCTIN")) == 0xff)
+	return -1;
+    if ((SIGNAL_IOC2 = drv_generic_parport_wire_ctrl("IOC2", "AUTOFD")) == 0xff)
+	return -1;
+    if ((SIGNAL_GPO = drv_generic_parport_wire_ctrl("GPO", "GND")) == 0xff)
+	return -1;
+
+    /* clear all signals */
+    drv_generic_parport_control(SIGNAL_EX | SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_GPO, 0);
+
+    /* for any mysterious reason, this delay is necessary... */
+    udelay(2000);
+
+    /* set direction: write */
+    drv_generic_parport_direction(0);
+
+    drv_M5_command(0x00FA, 20);	/* set function mode */
+    drv_M5_command(0x0020, 20);	/* set display mode */
+    drv_M5_command(0x0050, 20);	/* set entry mode */
+    drv_M5_command(0x0030, 20);	/* set display mode */
+
+    drv_M5_clear();
+
+    if (!quiet) {
+	char buffer[40];
+	qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
+	if (drv_generic_text_greet(buffer, NULL)) {
+	    sleep(3);
+	    drv_M5_clear();
+	}
     }
-  }
 
-  return 0;
+    return 0;
 }
 
 
@@ -344,106 +352,105 @@ static int drv_M5_start (const char *section, const int quiet)
 
 
 /* list models */
-int drv_M5_list (void)
+int drv_M5_list(void)
 {
-  int i;
-  
-  for (i=0; Models[i].type!=0xff; i++) {
-    printf ("%s ", Models[i].name);
-  }
-  return 0;
+    int i;
+
+    for (i = 0; Models[i].type != 0xff; i++) {
+	printf("%s ", Models[i].name);
+    }
+    return 0;
 }
 
 
 /* initialize driver & display */
-int drv_M5_init (const char *section, const int quiet)
+int drv_M5_init(const char *section, const int quiet)
 {
-  WIDGET_CLASS wc;
-  int ret;  
-  
-  /* display preferences */
-  XRES  = 5;      /* pixel width of one char  */
-  YRES  = 8;      /* pixel height of one char  */
-  CHARS = 8;      /* number of user-defineable characters */
-  CHAR0 = 248;    /* ASCII of first user-defineable char */
-  GOTO_COST = 1;  /* number of bytes a goto command requires */
-  
-  /* real worker functions */
-  drv_generic_text_real_write   = drv_M5_write;
-  drv_generic_text_real_defchar = drv_M5_defchar;
-
-
-  /* start display */
-  if ((ret = drv_M5_start (section, quiet)) != 0)
-    return ret;
-  
-  /* initialize generic text driver */
-  if ((ret = drv_generic_text_init(section, Name)) != 0)
-    return ret;
-
-  /* initialize generic icon driver */
-  if ((ret = drv_generic_text_icon_init()) != 0)
-    return ret;
-  
-  /* initialize generic bar driver */
-  if ((ret = drv_generic_text_bar_init(0)) != 0)
-    return ret;
-  
-  /* add fixed chars to the bar driver */
-  drv_generic_text_bar_add_segment (0, 0, 255, 32); /* ASCII  32 = blank */
-
-  /* register text widget */
-  wc = Widget_Text;
-  wc.draw = drv_generic_text_draw;
-  widget_register(&wc);
-  
-  /* register icon widget */
-  wc = Widget_Icon;
-  wc.draw = drv_generic_text_icon_draw;
-  widget_register(&wc);
-  
-  /* register bar widget */
-  wc = Widget_Bar;
-  wc.draw = drv_generic_text_bar_draw;
-  widget_register(&wc);
-  
-  /* register plugins */
-  /* none at the moment */
-
-  return 0;
+    WIDGET_CLASS wc;
+    int ret;
+
+    /* display preferences */
+    XRES = 5;			/* pixel width of one char  */
+    YRES = 8;			/* pixel height of one char  */
+    CHARS = 8;			/* number of user-defineable characters */
+    CHAR0 = 248;		/* ASCII of first user-defineable char */
+    GOTO_COST = 1;		/* number of bytes a goto command requires */
+
+    /* real worker functions */
+    drv_generic_text_real_write = drv_M5_write;
+    drv_generic_text_real_defchar = drv_M5_defchar;
+
+
+    /* start display */
+    if ((ret = drv_M5_start(section, quiet)) != 0)
+	return ret;
+
+    /* initialize generic text driver */
+    if ((ret = drv_generic_text_init(section, Name)) != 0)
+	return ret;
+
+    /* initialize generic icon driver */
+    if ((ret = drv_generic_text_icon_init()) != 0)
+	return ret;
+
+    /* initialize generic bar driver */
+    if ((ret = drv_generic_text_bar_init(0)) != 0)
+	return ret;
+
+    /* add fixed chars to the bar driver */
+    drv_generic_text_bar_add_segment(0, 0, 255, 32);	/* ASCII  32 = blank */
+
+    /* register text widget */
+    wc = Widget_Text;
+    wc.draw = drv_generic_text_draw;
+    widget_register(&wc);
+
+    /* register icon widget */
+    wc = Widget_Icon;
+    wc.draw = drv_generic_text_icon_draw;
+    widget_register(&wc);
+
+    /* register bar widget */
+    wc = Widget_Bar;
+    wc.draw = drv_generic_text_bar_draw;
+    widget_register(&wc);
+
+    /* register plugins */
+    /* none at the moment */
+
+    return 0;
 }
 
 
 /* close driver & display */
-int drv_M5_quit (const int quiet) {
-
-  info("%s: shutting down.", Name);
-
-  drv_generic_text_quit();
-
-  /* clear display */
-  drv_M5_clear();
-  
-  /* say goodbye... */
-  if (!quiet) {
-    drv_generic_text_greet ("goodbye!", NULL);
-  }
-  
-  /* clear all signals */
-  drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0);
-  
-  /* close port */
-  drv_generic_parport_close();
-  
-  return (0);
+int drv_M5_quit(const int quiet)
+{
+
+    info("%s: shutting down.", Name);
+
+    drv_generic_text_quit();
+
+    /* clear display */
+    drv_M5_clear();
+
+    /* say goodbye... */
+    if (!quiet) {
+	drv_generic_text_greet("goodbye!", NULL);
+    }
+
+    /* clear all signals */
+    drv_generic_parport_control(SIGNAL_EX | SIGNAL_IOC1 | SIGNAL_IOC2 | SIGNAL_GPO, 0);
+
+    /* close port */
+    drv_generic_parport_close();
+
+    return (0);
 }
 
 
 DRIVER drv_M50530 = {
-  name: Name,
-  list: drv_M5_list,
-  init: drv_M5_init,
-  quit: drv_M5_quit, 
+  name:Name,
+  list:drv_M5_list,
+  init:drv_M5_init,
+  quit:drv_M5_quit,
 };
-
-