Add an option to specify the DDRAM address of the next line.

This allows using the ST7036 controller like found on EA DOG modules.

CREDITS

@@ -256,6 +256,9 @@ Jack Cleaver
 Phant0m / Aron Parsons
 	-IRtrans driver
 
+Malte Poeggel
+	- support for ST7036 controller in hd44780
+
 
 Further developers in the sourceforge lcdproc team:
 Mindaugas Idzelis       aim4min

ChangeLog

@@ -42,7 +42,7 @@ v.0.5dev (ongoing development)
  * clean up build system (T. Jarosch, with tests/fixes by M. Dolze)
  + hd44780 driver: new ConnectionType ftdi (Thomas Jarosch)
  * shuttleVFD driver: fix VendorID, support newer models (Miska Sulander)
- + i2500vfd driver for a graphocal Noritake VFD (Thomas Jarosch)
+ + i2500vfd driver for a graphical Noritake VFD (Thomas Jarosch)
  * hd44780 driver: more complete initialization (idea by Pierre Ossman)
  * hd44780 driver: "euro" character mapping table (Markus Dolze)
  * CwLnx driver: support for CW12832
@@ -64,6 +64,7 @@ v.0.5dev (ongoing development)
  + new client lcdident.pl (Ethan Dicks)
  * server: prevent stalling if time goes backwards (M. Vallevand)
  * hd44780 driver: update the backlight setting only on change
+ + hd44780 driver: add lineaddress option to support ST7036 (Malte Poeggel)
 
 v.0.5.2
  * fix switching on/off the Load screen in lcdproc client using the menu

LCDd.conf

@@ -471,6 +471,10 @@ Size=20x4
 # set this flag to get into extended mode (4-line linear).
 #ExtendedMode=yes
 
+# In extended mode, on some controllers like the ST7036 (in 3 line mode)
+# the next line in DDRAM won't start 0x20 higher. [default: 0x20]
+#LineAddress=0x10
+
 # Character map to to map ISO-8859-1 to the LCD's character set
 # [default: hd44780_default; legal: hd44780_default, hd44780_euro, 
 #  ea_ks0073, sed1278f_0b ]

docs/lcdproc-user/drivers/hd44780.docbook

@@ -2203,6 +2203,12 @@ one for each key and the third if the keys are pressed simultaneously.
 With this 3-key setup, menus can be used (see example below).
 </para>
 
+<para>
+This driver supports the original LCD2USB interface board as described above
+as well as compatible devices like those sold by <ulink url="http://www.lcdmodkit.com/">Lcdmod Kit</ulink>
+or those developed by <ulink url="http://www.maltepoeggel.de/index.php?site=sp-lcd&lang=en">Malte Pöggel</ulink>.
+</para>
+
 <sect4 id="hd44780-lcd2usb-config">
 <title>Special configuration options</title>
 
@@ -2874,6 +2880,17 @@ This can be done by specifying <option>--enable-drivers=all</option> or by inclu
   </para></listitem>
 </varlistentry>
 
+<varlistentry>
+  <term>
+    <command>LineAddress</command> =
+    <arg choice="plain"><replaceable>ADDR</replaceable></arg>
+  </term>
+  <listitem><para>
+    If the next line of your display doesn't start <literal>0x20</literal> higher in
+    DDRAM you can override the default value of the ExtendedMode with this parameter.
+  </para></listitem>
+</varlistentry>
+
 <varlistentry>
   <term>
     <command>DelayMult</command> =

server/drivers/hd44780-lcd2usb.c

@@ -148,7 +148,7 @@ lcd2usb_HD44780_backlight(PrivateData *p, unsigned char state)
   /* get backlight brightness */
   int promille = (state == BACKLIGHT_ON) ? p->brightness : p->offbrightness;
   
-  p->hd44780_functions->drv_report(RPT_INFO, "lcd2usb_HD44780_backlight: Setting backlight to %d", promille);
+  p->hd44780_functions->drv_debug(RPT_DEBUG, "lcd2usb_HD44780_backlight: Setting backlight to %d", promille);
 
   /* and set it (converted from [0,1000] -> [0,255]) */
   if (usb_control_msg(p->usbHandle, USB_TYPE_VENDOR, LCD2USB_SET_BRIGHTNESS,

server/drivers/hd44780-low.h

@@ -161,6 +161,7 @@ typedef struct hd44780_private_data {
 	char have_backlight;	// off by default
 	char have_output;	// have extra output port (off by default)
 	char ext_mode;		// use of extended mode required for some weird controllers
+	int line_address; 	// address of the next line in ext_mode (linear addressing)
 	int delayMult;	 // Delay multiplier for slow displays
 	char delayBus;	 // Delay if the computer can send data too fast over
 				 // its bus to LPT port

server/drivers/hd44780.c

@@ -60,6 +60,9 @@
 // Default parallel port address
 #define LPTPORT	 0x378
 
+// Default Lineaddress in ext_mode
+#define LADDR 0x20
+
 // Autorepeat values
 #define KEYPAD_AUTOREPEAT_DELAY 500
 #define KEYPAD_AUTOREPEAT_FREQ 15
@@ -165,6 +168,7 @@ HD44780_init(Driver *drvthis)
 
 	p->port			= drvthis->config_get_int(drvthis->name, "port", 0, LPTPORT);
 	p->ext_mode		= drvthis->config_get_bool(drvthis->name, "extendedmode", 0, 0);
+	p->line_address 	= drvthis->config_get_int(drvthis->name, "lineaddress", 0, LADDR);
 	p->have_keypad		= drvthis->config_get_bool(drvthis->name, "keypad", 0, 0);
 	p->have_backlight	= drvthis->config_get_bool(drvthis->name, "backlight", 0, 0);
 	p->have_output		= drvthis->config_get_bool(drvthis->name, "outputport", 0, 0);
@@ -605,7 +609,7 @@ HD44780_position(Driver *drvthis, int x, int y)
 
 	if (p->ext_mode) {
 		// Linear addressing, each line starts 0x20 higher.
-		DDaddr = x + relY * 0x20;
+		DDaddr = x + relY * p->line_address;
 	} else {
 		// 16x1 is a special case
 		if (p->dispSizes[dispID - 1] == 1 && p->width == 16) {