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/* $Id: drv_BeckmannEgle.c 840 2007-09-09 12:17:42Z michael $
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* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/drv_BeckmannEgle.c $
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* driver for Beckmann+Egle "Mini Terminals" and "Compact Terminals"
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* Copyright (C) 2000 Michael Reinelt <michael@reinelt.co.at>
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* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
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* This file is part of LCD4Linux.
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* LCD4Linux is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* LCD4Linux is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* struct DRIVER drv_BeckmannEgle
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#include "widget_text.h"
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#include "widget_icon.h"
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#include "widget_bar.h"
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#include "drv_generic_text.h"
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#include "drv_generic_serial.h"
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static char Name[] = "Beckmann+Egle";
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static MODEL Models[] = {
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{"MT16x1", 1, 16, 1, 0},
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{"MT16x2", 2, 16, 1, 1},
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{"MT16x4", 4, 16, 1, 2},
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{"MT20x1", 1, 20, 1, 3},
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{"MT20x2", 2, 20, 1, 4},
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{"MT20x4", 4, 20, 1, 5},
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{"MT24x1", 1, 24, 1, 6},
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{"MT24x2", 2, 24, 1, 7},
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{"MT32x1", 1, 32, 1, 8},
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{"MT32x2", 2, 32, 1, 9},
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{"MT40x1", 1, 40, 1, 10},
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{"MT40x2", 2, 40, 1, 11},
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{"MT40x4", 4, 40, 1, 12},
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{"CT20x4", 4, 20, 2, 0},
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/****************************************/
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/*** hardware dependant functions ***/
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/****************************************/
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static void drv_BuE_clear(void)
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drv_generic_serial_write(ESC "&#", 3); /* clear display */
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drv_generic_serial_write(ESC "LL", 3); /* clear display */
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static void drv_BuE_MT_write(const int row, const int col, const char *data, const int len)
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char cmd[] = ESC "[y;xH";
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drv_generic_serial_write(cmd, 6);
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drv_generic_serial_write(data, len);
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static void drv_BuE_MT_defchar(const int ascii, const unsigned char *matrix)
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char cmd[22] = ESC "&T"; /* enter transparent mode */
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cmd[3] = '\0'; /* write cmd */
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cmd[4] = 0x40 | 8 * ascii; /* write CGRAM */
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for (i = 0; i < 8; i++) {
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cmd[2 * i + 5] = '\1'; /* write data */
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cmd[2 * i + 6] = matrix[i] & 0x1f; /* character bitmap */
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cmd[21] = '\377'; /* leave transparent mode */
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drv_generic_serial_write(cmd, 22);
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static void drv_BuE_CT_write(const int row, const int col, const char *data, const int len)
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char cmd[] = ESC "LCzs\001";
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cmd[3] = (char) row + 1;
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cmd[4] = (char) col + 1;
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drv_generic_serial_write(cmd, 6);
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drv_generic_serial_write(data, len);
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static void drv_BuE_CT_defchar(const int ascii, const unsigned char *matrix)
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char cmd[13] = ESC "LZ"; /* set custom char */
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/* number of user-defined char (0..7) */
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cmd[3] = (char) ascii - CHAR0;
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/* ASCII code to replace */
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cmd[4] = (char) ascii;
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for (i = 0; i < 8; i++) {
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cmd[i + 5] = matrix[i] & 0x1f;
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drv_generic_serial_write(cmd, 13);
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static int drv_BuE_CT_contrast(int contrast)
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static char Contrast = 7;
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char cmd[4] = ESC "LKn";
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/* -1 is used to query the current contrast */
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drv_generic_serial_write(cmd, 4);
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static int drv_BuE_CT_backlight(int backlight)
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static char Backlight = 0;
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char cmd[4] = ESC "LBn";
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/* -1 is used to query the current backlight */
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Backlight = backlight;
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drv_generic_serial_write(cmd, 4);
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static int drv_BuE_CT_gpo(int num, int val)
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static int GPO[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
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char cmd[4] = ESC "Pnx";
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/* -1 is used to query the current GPO */
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drv_generic_serial_write(cmd, 4);
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static int drv_BuE_CT_gpi(int num)
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char cmd[4] = ESC "?Pn";
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drv_generic_serial_write(cmd, 4);
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if (drv_generic_serial_read(buffer, 4) != 4) {
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error("%s: error reading port %d", Name, num);
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static int drv_BuE_CT_adc(void)
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drv_generic_serial_write(ESC "?A", 3);
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if ((drv_generic_serial_read(buffer, 4) != 4) || (buffer[0] != 'A') || (buffer[1] != ':')
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error("%s: error reading ADC", Name);
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/* 10 bit value: 8 bit high, 2 bit low */
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return 4 * (unsigned char) buffer[2] + (unsigned char) buffer[3];
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static int drv_BuE_CT_pwm(int val)
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char cmd[4] = ESC "Adm";
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/* -1 is used to query the current PWM */
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cmd[3] = val == 0 ? 1 : 2;
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drv_generic_serial_write(cmd, 4);
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static int drv_BuE_MT_start(const char *section)
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char cmd[] = ESC "&sX";
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/* CSTOPB: 2 stop bits */
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if (drv_generic_serial_open(section, Name, CSTOPB) < 0)
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cmd[4] = Models[Model].type;
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drv_generic_serial_write(cmd, 4); /* select display type */
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drv_generic_serial_write(ESC "&D", 3); /* cursor off */
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static int drv_BuE_CT_start(const char *section)
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if (drv_generic_serial_open(section, Name, 0) < 0)
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/* restart terminal */
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drv_generic_serial_write(ESC "Kr", 3);
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/* Fixme: the CT does not return a serial number in byte mode */
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/* set parameter mode 'decimal' */
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drv_generic_serial_write(ESC "KM\073", 4);
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drv_generic_serial_write(ESC "?V", 3);
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if ((len = drv_generic_serial_read(buffer, -1 * (int) sizeof(buffer))) > 0) {
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if (sscanf(buffer, "V:%d.%d,%d;", &v, &r, &s) != 3) {
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error("%s: error parsing display identification <%*s>", Name, len, buffer);
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info("%s: display identified as version %d.%d, S/N %d", Name, v, r, s);
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/* set parameter mode 'byte' */
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drv_generic_serial_write(ESC "KM\072", 4);
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/* the CT20x4 can control smaller displays, too */
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size = cfg_get(section, "Size", NULL);
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if (size != NULL && *size != '\0') {
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char cmd[6] = ESC "LArc";
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if (sscanf(size, "%dx%d", &c, &r) != 2 || r < 1 || c < 1) {
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error("%s: bad %s.Size '%s' from %s", Name, section, size, cfg_source());
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info("%s: display size: %d rows %d columns", Name, r, c);
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/* set display size */
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drv_generic_serial_write(cmd, 5);
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if (cfg_number(section, "Contrast", 7, 0, 15, &i) > 0) {
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drv_BuE_CT_contrast(i);
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if (cfg_number(section, "Backlight", 0, 0, 1, &i) > 0) {
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drv_BuE_CT_backlight(i);
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/* identify modules */
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for (i = 0; i < 8; i++) {
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char cmd[5] = ESC "K?Pn";
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drv_generic_serial_write(cmd, 5); /* query I/O port */
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if ((len = drv_generic_serial_read(buffer, 4)) == 4) {
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if (buffer[3] == 8) {
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type = "CT 20x4 internal port";
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error("%s: internal error: port 0 type %d should be type 8", Name, buffer[3]);
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case 1: /* Key Module */
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type = "XM-KEY-2x4-LED";
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case 8: /* I/O Module */
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case 9: /* I/O Module */
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case 15: /* nothing */
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default: /* unhandled */
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info("%s: Port %d: %s", Name, i, type);
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error("%s: internal error: port %d unknown type %d", Name, i, cmd[3]);
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error("%s: error fetching type of port %d", Name, i);
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static int drv_BuE_start(const char *section)
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model = cfg_get(section, "Model", NULL);
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if (model == NULL && *model == '\0') {
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error("%s: no '%s.Model' entry from %s", Name, section, cfg_source());
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for (i = 0; Models[i].name != NULL; i++) {
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if (strcasecmp(Models[i].name, model) == 0)
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if (Models[i].name == NULL) {
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error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source());
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Protocol = Models[Model].protocol;
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info("%s: using model '%s'", Name, Models[Model].name);
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/* initialize global variables */
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DROWS = Models[Model].rows;
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DCOLS = Models[Model].cols;
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ret = drv_BuE_MT_start(section);
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ret = drv_BuE_CT_start(section);
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/****************************************/
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/****************************************/
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static void plugin_contrast(RESULT * result, const int argc, RESULT * argv[])
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contrast = drv_BuE_CT_contrast(-1);
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SetResult(&result, R_NUMBER, &contrast);
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contrast = drv_BuE_CT_contrast(R2N(argv[0]));
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SetResult(&result, R_NUMBER, &contrast);
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error("%s::contrast(): wrong number of parameters", Name);
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SetResult(&result, R_STRING, "");
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static void plugin_backlight(RESULT * result, const int argc, RESULT * argv[])
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backlight = drv_BuE_CT_backlight(-1);
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SetResult(&result, R_NUMBER, &backlight);
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backlight = drv_BuE_CT_backlight(R2N(argv[0]));
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SetResult(&result, R_NUMBER, &backlight);
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error("%s::backlight(): wrong number of parameters", Name);
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SetResult(&result, R_STRING, "");
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static void plugin_gpo(RESULT * result, const int argc, RESULT * argv[])
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gpo = drv_BuE_CT_gpo(R2N(argv[0]), -1);
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SetResult(&result, R_NUMBER, &gpo);
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gpo = drv_BuE_CT_gpo(R2N(argv[0]), R2N(argv[1]));
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SetResult(&result, R_NUMBER, &gpo);
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error("%s::gpo(): wrong number of parameters", Name);
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SetResult(&result, R_STRING, "");
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static void plugin_gpi(RESULT * result, RESULT * arg1)
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gpi = drv_BuE_CT_gpi(R2N(arg1));
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SetResult(&result, R_NUMBER, &gpi);
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static void plugin_adc(RESULT * result)
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adc = drv_BuE_CT_adc();
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SetResult(&result, R_NUMBER, &adc);
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static void plugin_pwm(RESULT * result, const int argc, RESULT * argv[])
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pwm = drv_BuE_CT_pwm(-1);
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SetResult(&result, R_NUMBER, &pwm);
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pwm = drv_BuE_CT_pwm(R2N(argv[0]));
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SetResult(&result, R_NUMBER, &pwm);
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error("%s::pwm(): wrong number of parameters", Name);
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SetResult(&result, R_STRING, "");
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/****************************************/
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/*** widget callbacks ***/
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/****************************************/
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/* using drv_generic_text_draw(W) */
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/* using drv_generic_text_icon_draw(W) */
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/* using drv_generic_text_bar_draw(W) */
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/****************************************/
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/*** exported functions ***/
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/****************************************/
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int drv_BuE_list(void)
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for (i = 0; Models[i].name != NULL; i++) {
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printf("%s ", Models[i].name);
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/* initialize driver & display */
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int drv_BuE_init(const char *section, const int quiet)
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info("%s: %s", Name, "$Rev: 840 $");
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if ((ret = drv_BuE_start(section)) != 0) {
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/* display preferences */
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XRES = 5; /* pixel width of one char */
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YRES = 8; /* pixel height of one char */
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CHARS = 8; /* number of user-defineable characters */
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/* real worker functions */
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CHAR0 = 0; /* ASCII of first user-defineable char */
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GOTO_COST = 6; /* number of bytes a goto command requires */
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drv_generic_text_real_write = drv_BuE_MT_write;
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drv_generic_text_real_defchar = drv_BuE_MT_defchar;
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CHAR0 = 128; /* ASCII of first user-defineable char */
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GOTO_COST = 6; /* number of bytes a goto command requires */
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drv_generic_text_real_write = drv_BuE_CT_write;
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drv_generic_text_real_defchar = drv_BuE_CT_defchar;
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qprintf(buffer, sizeof(buffer), "%s %s", Name, Models[Model].name);
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if (drv_generic_text_greet(buffer, "www.bue.com")) {
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/* initialize generic text driver */
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if ((ret = drv_generic_text_init(section, Name)) != 0)
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/* initialize generic icon driver */
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if ((ret = drv_generic_text_icon_init()) != 0)
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/* initialize generic bar driver */
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if ((ret = drv_generic_text_bar_init(0)) != 0)
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/* add fixed chars to the bar driver */
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drv_generic_text_bar_add_segment(0, 0, 255, 32); /* ASCII 32 = blank */
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drv_generic_text_bar_add_segment(255, 255, 255, 255); /* ASCII 255 = block */
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/* register text widget */
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wc.draw = drv_generic_text_draw;
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widget_register(&wc);
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/* register icon widget */
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wc.draw = drv_generic_text_icon_draw;
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widget_register(&wc);
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/* register bar widget */
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wc.draw = drv_generic_text_bar_draw;
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widget_register(&wc);
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/* register plugins */
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AddFunction("LCD::contrast", -1, plugin_contrast);
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AddFunction("LCD::backlight", -1, plugin_backlight);
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AddFunction("LCD::gpo", -1, plugin_gpo);
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AddFunction("LCD::gpi", 1, plugin_gpi);
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AddFunction("LCD::adc", 0, plugin_adc);
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AddFunction("LCD::pwm", -1, plugin_pwm);
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/* close driver & display */
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int drv_BuE_quit(const int quiet)
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info("%s: shutting down.", Name);
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drv_generic_text_quit();
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drv_generic_text_greet("goodbye!", NULL);
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drv_generic_serial_close();
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DRIVER drv_BeckmannEgle = {
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.list = drv_BuE_list,
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.init = drv_BuE_init,
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.quit = drv_BuE_quit,
added
removed
drv_BeckmannEgle.c
