From 85b969a8a7fd45806c9ed5eafdcaebd64cafeb08 Mon Sep 17 00:00:00 2001
From: reinelt <>
Date: Thu, 6 Jan 2005 16:54:54 +0000
Subject: [lcd4linux @ 2005-01-06 16:54:53 by reinelt] M50530 fixes

---
 drv_M50530.c          | 55 +++++++++++++++++++++++++++++----------------------
 drv_generic_parport.c | 24 ++++++++++++----------
 lcd4linux.conf.sample | 12 +++++------
 3 files changed, 51 insertions(+), 40 deletions(-)

diff --git a/drv_M50530.c b/drv_M50530.c
index 2132c55..4c399ac 100644
--- a/drv_M50530.c
+++ b/drv_M50530.c
@@ -1,4 +1,4 @@
-#/* $Id: drv_M50530.c,v 1.14 2004/06/26 12:04:59 reinelt Exp $
+#/* $Id: drv_M50530.c,v 1.15 2005/01/06 16:54:53 reinelt Exp $
  *
  * new style driver for M50530-based displays
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: drv_M50530.c,v $
+ * 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...
@@ -156,13 +159,13 @@ static void drv_M5_command (const unsigned int cmd, const int delay)
 {
     
   /* put data on DB1..DB8 */
-  drv_generic_parport_data (cmd&0xff);
-    
+  drv_generic_parport_data (cmd & 0xff);
+
   /* set I/OC1 */
   /* set I/OC2 */
-  drv_generic_parport_control (SIGNAL_IOC1|SIGNAL_IOC2, 
-			       (cmd&0x200?SIGNAL_IOC1:0) | 
-			       (cmd&0x100?SIGNAL_IOC2:0));
+  drv_generic_parport_control (SIGNAL_IOC1 | SIGNAL_IOC2, 
+			       (cmd & 0x100 ? SIGNAL_IOC1 : 0) | 
+			       (cmd & 0x200 ? SIGNAL_IOC2 : 0));
   
   /* Control data setup time */
   ndelay(200);
@@ -195,8 +198,8 @@ static void drv_M5_write (const int row, const int col, const char *data, const
   drv_M5_command (0x300 | pos, 20);
   
   while (l--) {
-    cmd = *data++;
-    drv_M5_command (0x100 | cmd, 20);
+    cmd = *(unsigned char*)data++;
+    drv_M5_command (0x200 | cmd, 20);
   }
 }
 
@@ -205,12 +208,12 @@ static void drv_M5_defchar (const int ascii, const unsigned char *matrix)
 {
   int i;
   
-  drv_M5_command (0x300+192+8*(ascii-CHAR0), 20);
+  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 (0x100|(matrix[i] & 0x3f), 20);
+  for (i = 0; i < 7; i++) {
+    drv_M5_command (0x200 | (matrix[i] & 0x3f), 20);
   }
 }
 
@@ -282,11 +285,14 @@ static int drv_M5_start (const char *section, const int quiet)
   if ((SIGNAL_EX   = drv_generic_parport_wire_ctrl ("EX",   "STROBE"))==0xff) return -1;
   if ((SIGNAL_IOC1 = drv_generic_parport_wire_ctrl ("IOC1", "SELECT"))==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",  "INIT"  ))==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);
   
@@ -362,37 +368,37 @@ int drv_M5_init (const char *section, const int quiet)
 
 
   /* start display */
-  if ((ret=drv_M5_start (section, quiet))!=0)
+  if ((ret = drv_M5_start (section, quiet)) != 0)
     return ret;
   
   /* initialize generic text driver */
-  if ((ret=drv_generic_text_init(section, Name))!=0)
+  if ((ret = drv_generic_text_init(section, Name)) != 0)
     return ret;
 
   /* initialize generic icon driver */
-  if ((ret=drv_generic_text_icon_init())!=0)
+  if ((ret = drv_generic_text_icon_init()) != 0)
     return ret;
   
   /* initialize generic bar driver */
-  if ((ret=drv_generic_text_bar_init(0))!=0)
+  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 */
+  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;
+  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;
+  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;
+  wc = Widget_Bar;
+  wc.draw = drv_generic_text_bar_draw;
   widget_register(&wc);
   
   /* register plugins */
@@ -420,6 +426,7 @@ int drv_M5_quit (const int quiet) {
   /* clear all signals */
   drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0);
   
+  /* close port */
   drv_generic_parport_close();
   
   return (0);
diff --git a/drv_generic_parport.c b/drv_generic_parport.c
index 5ec6bbd..945a573 100644
--- a/drv_generic_parport.c
+++ b/drv_generic_parport.c
@@ -1,4 +1,4 @@
-/* $Id: drv_generic_parport.c,v 1.11 2004/09/18 15:58:57 reinelt Exp $
+/* $Id: drv_generic_parport.c,v 1.12 2005/01/06 16:54:54 reinelt Exp $
  *
  * generic driver helper for serial and parport access
  *
@@ -23,6 +23,9 @@
  *
  *
  * $Log: drv_generic_parport.c,v $
+ * Revision 1.12  2005/01/06 16:54:54  reinelt
+ * M50530 fixes
+ *
  * Revision 1.11  2004/09/18 15:58:57  reinelt
  * even more HD44780 cleanups, hardwiring for LCM-162
  *
@@ -426,11 +429,11 @@ void drv_generic_parport_toggle (const unsigned char bits, const int level, cons
 
   /* any signal affected? */
   /* Note: this may happen in case a signal is hardwired to GND */
-  if (bits==0) return;
+  if (bits == 0) return;
 
   /* prepare value */
-  value1=level?bits:0;
-  value2=level?0:bits;
+  value1 = level ? bits : 0;
+  value2 = level ? 0    : bits;
   
   /* Strobe, Select and AutoFeed are inverted! */
   value1 = bits & (value1 ^ (PARPORT_CONTROL_STROBE|PARPORT_CONTROL_SELECT|PARPORT_CONTROL_AUTOFD));
@@ -440,18 +443,19 @@ void drv_generic_parport_toggle (const unsigned char bits, const int level, cons
 #ifdef WITH_PPDEV
   if (PPdev) {
     struct ppdev_frob_struct frob;
-    frob.mask=bits;
-    
+    frob.mask = bits;
+      
     /* rise */
-    frob.val=value1;
+    frob.val = value1;
     ioctl (PPfd, PPFCONTROL, &frob);
-    
+      
     /* pulse width */
     ndelay(delay);      
-    
+      
     /* lower */
-    frob.val=value2;
+    frob.val = value2;
     ioctl (PPfd, PPFCONTROL, &frob);
+
   } else
 #endif
     {
diff --git a/lcd4linux.conf.sample b/lcd4linux.conf.sample
index 09ea972..567cf92 100644
--- a/lcd4linux.conf.sample
+++ b/lcd4linux.conf.sample
@@ -126,7 +126,7 @@ Display HD44780-I2C {
 
 Display M50530-24x8 {
     Driver 'M50530'
-    Port '/dev/parports/0'	
+    Port '/dev/parport0'	
 #   Port '0x378'
     Size '24x8'
     Wire.EX   'STROBE'
@@ -301,7 +301,7 @@ Widget Disk {
     # expression (proc_stat::disk('.*', 'rblk', 500)+proc_stat::disk('.*', 'wblk', 500))/2
     # with kernel 2.6, disk_io disappeared from /proc/stat but moved to /proc/diskstat
     # therefore you have to use another function called 'diskstats':
-    expression diskstats('.*', 'read_sectors', 500) + diskstats('.*', 'write_sectors', 500)
+    expression diskstats('hd.', 'read_sectors', 500) + diskstats('hd.', 'write_sectors', 500)
     prefix 'disk'
     postfix ' '
     width 10	
@@ -315,8 +315,8 @@ Widget DiskBar {
     #expression  proc_stat::disk('.*', 'rblk', 500)
     #expression2 proc_stat::disk('.*', 'wblk', 500)
     # for kernel 2.6:
-    expression  diskstats('.*', 'read_sectors',  500)
-    expression2 diskstats('.*', 'write_sectors', 500)
+    expression  diskstats('hd.', 'read_sectors',  500)
+    expression2 diskstats('hd.', 'write_sectors', 500)
     length 14	
     direction 'E'
     update tack
@@ -687,10 +687,10 @@ Layout testMySQL {
 #Display 'SC1602D'
 #Display 'LCM-162'
 #Display 'CF631'
-Display 'CF632'
+#Display 'CF632'
 #Display 'CF633'
 #Display 'Curses'
-#Display 'M50530-24x8'
+Display 'M50530-24x8'
 #Display 'CT20x4'
 #Display 'T6963-240x64'
 #Display 'XWindow'
-- 
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