add driver for lcm162-module (by H. Rasch)

acinclude.m4

@@ -214,7 +214,7 @@ dnl			else
 			actdrivers=["$actdrivers glk"]
 			;;
 		hd44780)
-			HD44780_DRIVERS="hd44780-hd44780-serial.o hd44780-hd44780-lis2.o hd44780-hd44780-usblcd.o"
+			HD44780_DRIVERS="hd44780-hd44780-serial.o hd44780-hd44780-lis2.o hd44780-hd44780-usblcd.o hd44780-hd44780-lcm162.o"
 			if test "$ac_cv_port_have_lpt" = yes ; then
 				HD44780_DRIVERS="$HD44780_DRIVERS hd44780-hd44780-4bit.o hd44780-hd44780-ext8bit.o hd44780-lcd_sem.o hd44780-hd44780-winamp.o hd44780-hd44780-serialLpt.o"
 			fi

server/drivers/Makefile.am

@@ -95,7 +95,7 @@ EXTRA_glcd_SOURCES = glcd-t6963.c t6963_low.c t6963_low.h glcd-png.c glcd-serdis
 glcdlib_SOURCES =    lcd.h lcd_lib.h glcdlib.h glcdlib.c report.h
 glk_SOURCES =        lcd.h glk.c glk.h glkproto.c glkproto.h report.h
 hd44780_SOURCES =    lcd.h lcd_lib.h hd44780.h hd44780.c hd44780-drivers.h hd44780-low.h hd44780-charmap.h report.h adv_bignum.h
-EXTRA_hd44780_SOURCES = port.h lpt-port.h timing.h lcd_sem.c lcd_sem.h hd44780-4bit.c hd44780-4bit.h hd44780-bwct-usb.c hd44780-bwct-usb.h hd44780-ethlcd.c hd44780-ethlcd.h hd44780-ext8bit.c hd44780-ext8bit.h hd44780-ftdi.c hd44780-ftdi.h hd44780-i2c.c hd44780-i2c.h hd44780-lcd2usb.c hd44780-lcd2usb.h hd44780-lis2.c hd44780-lis2.h hd44780-pifacecad.c hd44780-pifacecad.h hd44780-piplate.c hd44780-piplate.h hd44780-rpi.c hd44780-rpi.h hd44780-serial.c hd44780-serial.h hd44780-serialLpt.c hd44780-serialLpt.h hd44780-spi.c hd44780-spi.h hd44780-usb4all.c hd44780-usb4all.h hd44780-usblcd.c hd44780-usblcd.h hd44780-usbtiny.c hd44780-usbtiny.h hd44780-uss720.c hd44780-uss720.h hd44780-winamp.c hd44780-winamp.h
+EXTRA_hd44780_SOURCES = port.h lpt-port.h timing.h lcd_sem.c lcd_sem.h hd44780-4bit.c hd44780-4bit.h hd44780-bwct-usb.c hd44780-bwct-usb.h hd44780-ethlcd.c hd44780-ethlcd.h hd44780-ext8bit.c hd44780-ext8bit.h hd44780-ftdi.c hd44780-ftdi.h hd44780-i2c.c hd44780-i2c.h hd44780-lcd2usb.c hd44780-lcd2usb.h hd44780-lis2.c hd44780-lis2.h hd44780-pifacecad.c hd44780-pifacecad.h hd44780-piplate.c hd44780-piplate.h hd44780-rpi.c hd44780-rpi.h hd44780-serial.c hd44780-serial.h hd44780-serialLpt.c hd44780-serialLpt.h hd44780-spi.c hd44780-spi.h hd44780-usb4all.c hd44780-usb4all.h hd44780-usblcd.c hd44780-usblcd.h hd44780-usbtiny.c hd44780-usbtiny.h hd44780-uss720.c hd44780-uss720.h hd44780-winamp.c hd44780-winamp.h  hd44780-lcm162.c hd44780-lcm162.h
 i2500vfd_SOURCES =   lcd.h i2500vfd.c i2500vfd.h glcd_font5x8.h report.h
 icp_a106_SOURCES =   lcd.h lcd_lib.h icp_a106.c icp_a106.h report.h
 imon_SOURCES =       lcd.h lcd_lib.h hd44780-charmap.h imon.h imon.c report.h adv_bignum.h

server/drivers/hd44780-drivers.h

@@ -16,6 +16,7 @@
 # include "hd44780-ext8bit.h"
 # include "hd44780-serialLpt.h"
 # include "hd44780-winamp.h"
+# include "hd44780-lcm162.h"
 #endif
 #include "hd44780-serial.h"
 #include "hd44780-lis2.h"
@@ -60,6 +61,7 @@ static const ConnectionMapping connectionMapping[] = {
 	{ "8bit",          HD44780_CT_8BIT,          IF_TYPE_PARPORT, hd_init_ext8bit   },
 	{ "serialLpt",     HD44780_CT_SERIALLPT,     IF_TYPE_PARPORT, hd_init_serialLpt },
 	{ "winamp",        HD44780_CT_WINAMP,        IF_TYPE_PARPORT, hd_init_winamp    },
+	{ "lcm162",        HD44780_CT_LCM162,        IF_TYPE_PARPORT, hd_init_lcm162    },
 #endif
 	/* serial connection types */
 	{ "picanlcd",      HD44780_CT_PICANLCD,      IF_TYPE_SERIAL,  hd_init_serial    },

server/drivers/hd44780-lcm162.c

@@ -0,0 +1,133 @@
+/*
+ * 8-bit driver module for Hitachi HD44780 based LCD displays.
+ * The LCD is operated in it's 8 bit-mode to be connected to a single
+ * PC parallel port.
+ *
+ * Copyright (c)  1999, 1995 Benjamin Tse <blt@Comports.com>
+ *                2001 Joris Robijn <joris@robijn.net>
+ *		  2009 Holger Rasch <rasch@bytemine.net>
+ *
+ * Created modular driver Dec 1999, Benjamin Tse <blt@Comports.com>
+ *
+ * Based on the code in the lcdtime package which uses the LCD
+ * controller in its 8-bit mode.
+ *
+ * This file is released under the GNU General Public License. Refer to the
+ * COPYING file distributed with this package.
+ */
+
+/*
+ * Copied from "hd44780-ext8.c" and modified for lcm-162 module
+ * found in nexcom nsaXXXX models.
+ */
+
+#include "hd44780-lcm162.h"
+#include "hd44780-low.h"
+#include "lpt-port.h"
+#include "port.h"
+#include "report.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+// Generally, any function that accesses the LCD control lines needs to be
+// implemented separately for each HW design. This is typically (but not
+// restricted to):
+// HD44780_senddata
+// HD44780_readkeypad
+
+void lcm162_HD44780_senddata(PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch);
+void lcm162_HD44780_backlight(PrivateData *p, unsigned char state);
+unsigned char lcm162_HD44780_readkeypad(PrivateData *p, unsigned int YData);
+void lcm162_HD44780_output(PrivateData *p, int data);
+
+/* lcm-162 specific mapping parport <-> hd44780 signals */
+#define	RS	SEL
+#define	RW	INIT
+#define	EN1	LF
+
+
+// initialise the driver
+int
+hd_init_lcm162(Driver *drvthis)
+{
+	PrivateData *p = (PrivateData*) drvthis->private_data;
+	HD44780_functions *hd44780_functions = p->hd44780_functions;
+
+	// Reserve the port registers
+	if (port_access_multiple(p->port,3)) {
+		report(RPT_ERR, "%s: cannot get IO-permission for 0x%03X: %s",
+				drvthis->name, p->port, strerror(errno));
+		return -1;
+	}
+
+	hd44780_functions->senddata = lcm162_HD44780_senddata;
+	hd44780_functions->backlight = lcm162_HD44780_backlight;
+	hd44780_functions->readkeypad = lcm162_HD44780_readkeypad;
+
+	// setup the lcd in 8 bit mode
+	hd44780_functions->senddata(p, 0, RS_INSTR, FUNCSET | IF_8BIT);
+	hd44780_functions->uPause(p, 4100);
+	hd44780_functions->senddata(p, 0, RS_INSTR, FUNCSET | IF_8BIT);
+	hd44780_functions->uPause(p, 100);
+	hd44780_functions->senddata(p, 0, RS_INSTR, FUNCSET | IF_8BIT | TWOLINE | SMALLCHAR);
+	hd44780_functions->uPause(p, 40);
+
+	common_init (p, IF_8BIT);
+
+	if (p->have_keypad)
+		p->stuckinputs = 0;	/* unused here */
+
+	// Writes new value to the "bargraph" latches
+	hd44780_functions->output = 0;
+	return 0;
+}
+
+// lcm162_HD44780_senddata
+void
+lcm162_HD44780_senddata(PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch)
+{
+	unsigned char enableLines = 0, portControl;
+
+	// Only one controller is supported
+	enableLines = EN1;
+
+	if (flags == RS_INSTR)
+		portControl = 0;
+	else //if (iflags == RS_DATA)
+		portControl = RS;
+
+	portControl |= p->backlight_bit;
+
+	port_out(p->port + 2, portControl ^ OUTMASK);
+	port_out(p->port, ch);
+	if (p->delayBus) p->hd44780_functions->uPause(p, 1);
+	port_out(p->port + 2, (enableLines|portControl) ^ OUTMASK);
+	if (p->delayBus) p->hd44780_functions->uPause(p, 1);
+	port_out(p->port + 2, portControl ^ OUTMASK);
+}
+
+void lcm162_HD44780_backlight(PrivateData *p, unsigned char state)
+{
+	/* ignore config, there is no backlight control on the lcm-162 */
+	return;
+}
+
+unsigned char lcm162_HD44780_readkeypad(PrivateData *p, unsigned int YData)
+{
+	unsigned char readval;
+
+	if (YData) return 0;	/* no keymatrix */
+
+	readval = port_in(p->port + 1);
+	if (readval & ACK) {	/* a key is pressed */
+		/* 4 keys encoded in signals PAPEREND and FAULT */
+		/* map them to low nibble (multiple keys not supported) */
+		return 1 << (
+			((readval & FAULT) / FAULT << 1) |
+			((readval & PAPEREND) / PAPEREND)
+		);
+	} else
+		return 0;
+}

server/drivers/hd44780-lcm162.h

@@ -0,0 +1,9 @@
+#ifndef HD_LCM162_H
+#define HD_LCM162_H
+
+#include "lcd.h"					  /* for Driver */
+
+// initialise this particular driver
+int hd_init_lcm162(Driver *drvthis);
+
+#endif

server/drivers/hd44780-low.h

@@ -57,6 +57,7 @@
 #define HD44780_CT_PIPLATE		23
 #define HD44780_CT_SPI			24
 #define HD44780_CT_PIFACECAD		25
+#define HD44780_CT_LCM162		26
 /**@}*/
 
 /** \name Symbolic names for interface types