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drv_BeckmannEgle.c
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drv_BeckmannEgle.c
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/* $Id$
* $URL$
*
* driver for Beckmann+Egle "Mini Terminals" and "Compact Terminals"
* Copyright (C) 2000 Michael Reinelt <[email protected]>
* Copyright (C) 2004 The LCD4Linux Team <[email protected]>
*
* 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.
*
*/
/*
*
* exported fuctions:
*
* struct DRIVER drv_BeckmannEgle
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <termios.h>
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "plugin.h"
#include "widget.h"
#include "widget_text.h"
#include "widget_icon.h"
#include "widget_bar.h"
#include "drv.h"
#include "drv_generic_text.h"
#include "drv_generic_serial.h"
#define ESC "\033"
static char Name[] = "Beckmann+Egle";
typedef struct {
char *name;
int rows;
int cols;
int protocol;
int type;
} MODEL;
static MODEL Models[] = {
/* MultiTerminals */
{ "MT16x1", 1, 16, 1, 0 },
{ "MT16x2", 2, 16, 1, 1 },
{ "MT16x4", 4, 16, 1, 2 },
{ "MT20x1", 1, 20, 1, 3 },
{ "MT20x2", 2, 20, 1, 4 },
{ "MT20x4", 4, 20, 1, 5 },
{ "MT24x1", 1, 24, 1, 6 },
{ "MT24x2", 2, 24, 1, 7 },
{ "MT32x1", 1, 32, 1, 8 },
{ "MT32x2", 2, 32, 1, 9 },
{ "MT40x1", 1, 40, 1, 10 },
{ "MT40x2", 2, 40, 1, 11 },
{ "MT40x4", 4, 40, 1, 12 },
/* CompactTerminal */
{ "CT20x4", 4, 20, 2, 0 },
{ NULL, 0, 0, 0, 0 },
};
static int Model;
static int Protocol;
/****************************************/
/*** hardware dependant functions ***/
/****************************************/
static void drv_BuE_clear(void)
{
switch (Protocol) {
case 1:
drv_generic_serial_write(ESC "&#", 3); /* clear display */
break;
case 2:
drv_generic_serial_write(ESC "LL", 3); /* clear display */
break;
}
}
static void drv_BuE_MT_write(const int row, const int col, const char *data, const int len)
{
char cmd[] = ESC "[y;xH";
cmd[2] = (char) row;
cmd[4] = (char) col;
drv_generic_serial_write(cmd, 6);
drv_generic_serial_write(data, len);
}
static void drv_BuE_MT_defchar(const int ascii, const unsigned char *matrix)
{
int i;
char cmd[22] = ESC "&T"; /* enter transparent mode */
cmd[3] = '\0'; /* write cmd */
cmd[4] = 0x40 | 8 * ascii; /* write CGRAM */
for (i = 0; i < 8; i++) {
cmd[2 * i + 5] = '\1'; /* write data */
cmd[2 * i + 6] = matrix[i] & 0x1f; /* character bitmap */
}
cmd[21] = '\377'; /* leave transparent mode */
drv_generic_serial_write(cmd, 22);
}
static void drv_BuE_CT_write(const int row, const int col, const char *data, const int len)
{
char cmd[] = ESC "LCzs\001";
cmd[3] = (char) row + 1;
cmd[4] = (char) col + 1;
drv_generic_serial_write(cmd, 6);
drv_generic_serial_write(data, len);
}
static void drv_BuE_CT_defchar(const int ascii, const unsigned char *matrix)
{
int i;
char cmd[13] = ESC "LZ"; /* set custom char */
/* number of user-defined char (0..7) */
cmd[3] = (char) ascii - CHAR0;
/* ASCII code to replace */
cmd[4] = (char) ascii;
for (i = 0; i < 8; i++) {
cmd[i + 5] = matrix[i] & 0x1f;
}
drv_generic_serial_write(cmd, 13);
}
static int drv_BuE_CT_contrast(int contrast)
{
static char Contrast = 7;
char cmd[4] = ESC "LKn";
/* -1 is used to query the current contrast */
if (contrast == -1)
return Contrast;
if (contrast < 0)
contrast = 0;
if (contrast > 15)
contrast = 15;
Contrast = contrast;
cmd[3] = Contrast;
drv_generic_serial_write(cmd, 4);
return Contrast;
}
static int drv_BuE_CT_backlight(int backlight)
{
static char Backlight = 0;
char cmd[4] = ESC "LBn";
/* -1 is used to query the current backlight */
if (backlight == -1)
return Backlight;
if (backlight < 0)
backlight = 0;
if (backlight > 1)
backlight = 1;
Backlight = backlight;
cmd[3] = Backlight;
drv_generic_serial_write(cmd, 4);
return Backlight;
}
static int drv_BuE_CT_gpo(int num, int val)
{
static int GPO[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
char cmd[4] = ESC "Pnx";
if (num < 0)
num = 0;
if (num > 7)
num = 7;
/* -1 is used to query the current GPO */
if (val == -1)
return GPO[num];
if (val < 0)
val = 0;
if (val > 255)
val = 255;
GPO[num] = val;
cmd[2] = (char) num;
cmd[3] = (char) val;
drv_generic_serial_write(cmd, 4);
return GPO[num];
}
static int drv_BuE_CT_gpi(int num)
{
char cmd[4] = ESC "?Pn";
char buffer[4];
if (num < 0)
num = 0;
if (num > 7)
num = 7;
cmd[3] = (char) num;
drv_generic_serial_write(cmd, 4);
usleep(10000);
if (drv_generic_serial_read(buffer, 4) != 4) {
error("%s: error reading port %d", Name, num);
return -1;
}
return buffer[3];
}
static int drv_BuE_CT_adc(void)
{
char buffer[4];
drv_generic_serial_write(ESC "?A", 3);
usleep(10000);
if ((drv_generic_serial_read(buffer, 4) != 4) || (buffer[0] != 'A') || (buffer[1] != ':')
) {
error("%s: error reading ADC", Name);
return -1;
}
/* 10 bit value: 8 bit high, 2 bit low */
return 4 * (unsigned char) buffer[2] + (unsigned char) buffer[3];
}
static int drv_BuE_CT_pwm(int val)
{
static int PWM = -1;
char cmd[4] = ESC "Adm";
/* -1 is used to query the current PWM */
if (val == -1)
return PWM;
if (val < 0)
val = 0;
if (val > 255)
val = 255;
PWM = val;
cmd[2] = (char) val;
cmd[3] = val == 0 ? 1 : 2;
drv_generic_serial_write(cmd, 4);
return val;
}
static int drv_BuE_MT_start(const char *section)
{
char cmd[] = ESC "&sX";
/* CSTOPB: 2 stop bits */
if (drv_generic_serial_open(section, Name, CSTOPB) < 0)
return -1;
cmd[4] = Models[Model].type;
drv_generic_serial_write(cmd, 4); /* select display type */
drv_generic_serial_write(ESC "&D", 3); /* cursor off */
return 0;
}
static int drv_BuE_CT_start(const char *section)
{
char buffer[16];
char *size;
int i, len;
if (drv_generic_serial_open(section, Name, 0) < 0)
return -1;
#if 0
/* restart terminal */
drv_generic_serial_write(ESC "Kr", 3);
usleep(10000);
#endif
/* Fixme: the CT does not return a serial number in byte mode */
/* set parameter mode 'decimal' */
drv_generic_serial_write(ESC "KM\073", 4);
/* read version */
drv_generic_serial_write(ESC "?V", 3);
usleep(100000);
if ((len = drv_generic_serial_read(buffer, -1 * (int) sizeof(buffer))) > 0) {
int v, r, s;
if (sscanf(buffer, "V:%d.%d,%d;", &v, &r, &s) != 3) {
error("%s: error parsing display identification <%*s>", Name, len, buffer);
} else {
info("%s: display identified as version %d.%d, S/N %d", Name, v, r, s);
}
}
/* set parameter mode 'byte' */
drv_generic_serial_write(ESC "KM\072", 4);
/* the CT20x4 can control smaller displays, too */
size = cfg_get(section, "Size", NULL);
if (size != NULL && *size != '\0') {
int r, c;
char cmd[6] = ESC "LArc";
if (sscanf(size, "%dx%d", &c, &r) != 2 || r < 1 || c < 1) {
error("%s: bad %s.Size '%s' from %s", Name, section, size, cfg_source());
return -1;
}
info("%s: display size: %d rows %d columns", Name, r, c);
/* set display size */
cmd[3] = (char) r;
cmd[4] = (char) c;
drv_generic_serial_write(cmd, 5);
DCOLS = c;
DROWS = r;
}
/* set contrast */
if (cfg_number(section, "Contrast", 7, 0, 15, &i) > 0) {
drv_BuE_CT_contrast(i);
}
/* set backlight */
if (cfg_number(section, "Backlight", 0, 0, 1, &i) > 0) {
drv_BuE_CT_backlight(i);
}
/* identify modules */
for (i = 0; i < 8; i++) {
char cmd[5] = ESC "K?Pn";
cmd[4] = (char) i;
drv_generic_serial_write(cmd, 5); /* query I/O port */
usleep(10000);
if ((len = drv_generic_serial_read(buffer, 4)) == 4) {
char *type = NULL;
if (i == 0) {
if (buffer[3] == 8) {
/* internal port */
type = "CT 20x4 internal port";
} else {
error("%s: internal error: port 0 type %d should be type 8", Name, buffer[3]);
continue;
}
} else {
switch (buffer[3]) {
case 1: /* Key Module */
type = "XM-KEY-2x4-LED";
break;
case 8: /* I/O Module */
type = "XM-IO8-T";
break;
case 9: /* I/O Module */
type = "XM-IO4-R";
break;
case 15: /* nothing */
continue;
default: /* unhandled */
type = NULL;
break;
}
}
if (type != NULL) {
info("%s: Port %d: %s", Name, i, type);
} else {
error("%s: internal error: port %d unknown type %d", Name, i, cmd[3]);
}
} else {
error("%s: error fetching type of port %d", Name, i);
}
}
return 0;
}
static int drv_BuE_start(const char *section)
{
int i, ret;
char *model;
model = cfg_get(section, "Model", NULL);
if (model == NULL && *model == '\0') {
error("%s: no '%s.Model' entry from %s", Name, section, cfg_source());
return -1;
}
for (i = 0; Models[i].name != NULL; i++) {
if (strcasecmp(Models[i].name, model) == 0)
break;
}
if (Models[i].name == NULL) {
error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source());
return -1;
}
Model = i;
Protocol = Models[Model].protocol;
info("%s: using model '%s'", Name, Models[Model].name);
/* initialize global variables */
DROWS = Models[Model].rows;
DCOLS = Models[Model].cols;
ret = 0;
switch (Protocol) {
case 1:
ret = drv_BuE_MT_start(section);
break;
case 2:
ret = drv_BuE_CT_start(section);
break;
}
if (ret != 0) {
return ret;
}
drv_BuE_clear();
return 0;
}
/****************************************/
/*** plugins ***/
/****************************************/
static void plugin_contrast(RESULT * result, const int argc, RESULT * argv[])
{
double contrast;
switch (argc) {
case 0:
contrast = drv_BuE_CT_contrast(-1);
SetResult(&result, R_NUMBER, &contrast);
break;
case 1:
contrast = drv_BuE_CT_contrast(R2N(argv[0]));
SetResult(&result, R_NUMBER, &contrast);
break;
default:
error("%s::contrast(): wrong number of parameters", Name);
SetResult(&result, R_STRING, "");
}
}
static void plugin_backlight(RESULT * result, const int argc, RESULT * argv[])
{
double backlight;
switch (argc) {
case 0:
backlight = drv_BuE_CT_backlight(-1);
SetResult(&result, R_NUMBER, &backlight);
break;
case 1:
backlight = drv_BuE_CT_backlight(R2N(argv[0]));
SetResult(&result, R_NUMBER, &backlight);
break;
default:
error("%s::backlight(): wrong number of parameters", Name);
SetResult(&result, R_STRING, "");
}
}
static void plugin_gpo(RESULT * result, const int argc, RESULT * argv[])
{
double gpo;
switch (argc) {
case 1:
gpo = drv_BuE_CT_gpo(R2N(argv[0]), -1);
SetResult(&result, R_NUMBER, &gpo);
break;
case 2:
gpo = drv_BuE_CT_gpo(R2N(argv[0]), R2N(argv[1]));
SetResult(&result, R_NUMBER, &gpo);
break;
default:
error("%s::gpo(): wrong number of parameters", Name);
SetResult(&result, R_STRING, "");
}
}
static void plugin_gpi(RESULT * result, RESULT * arg1)
{
double gpi;
gpi = drv_BuE_CT_gpi(R2N(arg1));
SetResult(&result, R_NUMBER, &gpi);
}
static void plugin_adc(RESULT * result)
{
double adc;
adc = drv_BuE_CT_adc();
SetResult(&result, R_NUMBER, &adc);
}
static void plugin_pwm(RESULT * result, const int argc, RESULT * argv[])
{
double pwm;
switch (argc) {
case 0:
pwm = drv_BuE_CT_pwm(-1);
SetResult(&result, R_NUMBER, &pwm);
break;
case 1:
pwm = drv_BuE_CT_pwm(R2N(argv[0]));
SetResult(&result, R_NUMBER, &pwm);
break;
default:
error("%s::pwm(): wrong number of parameters", Name);
SetResult(&result, R_STRING, "");
}
}
/****************************************/
/*** widget callbacks ***/
/****************************************/
/* using drv_generic_text_draw(W) */
/* using drv_generic_text_icon_draw(W) */
/* using drv_generic_text_bar_draw(W) */
/****************************************/
/*** exported functions ***/
/****************************************/
/* list models */
int drv_BuE_list(void)
{
int i;
for (i = 0; Models[i].name != NULL; i++) {
printf("%s ", Models[i].name);
}
return 0;
}
/* initialize driver & display */
int drv_BuE_init(const char *section, const int quiet)
{
WIDGET_CLASS wc;
int ret;
info("%s: %s", Name, "$Rev$");
/* start display */
if ((ret = drv_BuE_start(section)) != 0) {
return ret;
}
/* display preferences */
XRES = 5; /* pixel width of one char */
YRES = 8; /* pixel height of one char */
CHARS = 8; /* number of user-defineable characters */
/* real worker functions */
switch (Protocol) {
case 1:
CHAR0 = 0; /* ASCII of first user-defineable char */
GOTO_COST = 6; /* number of bytes a goto command requires */
drv_generic_text_real_write = drv_BuE_MT_write;
drv_generic_text_real_defchar = drv_BuE_MT_defchar;
break;
case 2:
CHAR0 = 128; /* ASCII of first user-defineable char */
GOTO_COST = 6; /* number of bytes a goto command requires */
drv_generic_text_real_write = drv_BuE_CT_write;
drv_generic_text_real_defchar = drv_BuE_CT_defchar;
break;
}
if (!quiet) {
char buffer[40];
qprintf(buffer, sizeof(buffer), "%s %s", Name, Models[Model].name);
if (drv_generic_text_greet(buffer, "www.bue.com")) {
sleep(3);
drv_BuE_clear();
}
}
/* 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 */
drv_generic_text_bar_add_segment(255, 255, 255, 255); /* ASCII 255 = block */
/* 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 */
AddFunction("LCD::contrast", -1, plugin_contrast);
AddFunction("LCD::backlight", -1, plugin_backlight);
AddFunction("LCD::gpo", -1, plugin_gpo);
AddFunction("LCD::gpi", 1, plugin_gpi);
AddFunction("LCD::adc", 0, plugin_adc);
AddFunction("LCD::pwm", -1, plugin_pwm);
return 0;
}
/* close driver & display */
int drv_BuE_quit(const int quiet)
{
info("%s: shutting down.", Name);
drv_generic_text_quit();
/* clear display */
drv_BuE_clear();
/* say goodbye... */
if (!quiet) {
drv_generic_text_greet("goodbye!", NULL);
}
drv_generic_serial_close();
return (0);
}
DRIVER drv_BeckmannEgle = {
.name = Name,
.list = drv_BuE_list,
.init = drv_BuE_init,
.quit = drv_BuE_quit,
};