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archived-lcd4linux/drv_MatrixOrbital.c
michael 6d5d1055ea email address changed 
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@840 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
2007-09-09 12:17:42 +00:00

558 lines
13 KiB
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/* $Id$
* $URL$
*
* new style driver for Matrix Orbital serial display modules
*
* Copyright (C) 1999, 2000 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* 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_MatrixOrbital
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include "debug.h"
#include "cfg.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_gpio.h"
#include "drv_generic_serial.h"
static char Name[] = "MatrixOrbital";
static int Model;
static int Protocol;
typedef struct {
int type;
char *name;
int rows;
int cols;
int gpis;
int gpos;
int protocol;
} MODEL;
/* Fixme #1: number of gpo's should be verified */
/* Fixme #2: protocol should be verified */
static MODEL Models[] = {
{0x01, "LCD0821", 2, 8, 0, 1, 1},
{0x03, "LCD2021", 2, 20, 0, 1, 1},
{0x04, "LCD1641", 4, 16, 0, 1, 1},
{0x05, "LCD2041", 4, 20, 0, 1, 1},
{0x06, "LCD4021", 2, 40, 0, 1, 1},
{0x07, "LCD4041", 4, 40, 0, 1, 1},
{0x08, "LK202-25", 2, 20, 8, 8, 2},
{0x09, "LK204-25", 4, 20, 8, 8, 2},
{0x0a, "LK404-55", 4, 40, 8, 8, 2},
{0x0b, "VFD2021", 2, 20, 0, 1, 1},
{0x0c, "VFD2041", 4, 20, 0, 1, 1},
{0x0d, "VFD4021", 2, 40, 0, 1, 1},
{0x0e, "VK202-25", 2, 20, 0, 1, 1},
{0x0f, "VK204-25", 4, 20, 0, 1, 1},
{0x10, "GLC12232", -1, -1, 0, 1, 1},
{0x13, "GLC24064", -1, -1, 0, 1, 1},
{0x15, "GLK24064-25", -1, -1, 0, 1, 1},
{0x22, "GLK12232-25", -1, -1, 0, 1, 1},
{0x31, "LK404-AT", 4, 40, 8, 8, 2},
{0x32, "VFD1621", 2, 16, 0, 1, 1},
{0x33, "LK402-12", 2, 40, 8, 8, 2},
{0x34, "LK162-12", 2, 16, 8, 8, 2},
{0x35, "LK204-25PC", 4, 20, 8, 8, 2},
{0x36, "LK202-24-USB", 2, 20, 8, 8, 2},
{0x38, "LK204-24-USB", 4, 20, 8, 8, 2},
{0x39, "VK204-24-USB", 4, 20, 8, 8, 2},
{0xff, "Unknown", -1, -1, 0, 0, 0}
};
/****************************************/
/*** hardware dependant functions ***/
/****************************************/
static void drv_MO_clear(void)
{
switch (Protocol) {
case 1:
drv_generic_serial_write("\014", 1); /* Clear Screen */
break;
case 2:
drv_generic_serial_write("\376\130", 2); /* Clear Screen */
break;
}
}
static void drv_MO_write(const int row, const int col, const char *data, const int len)
{
char cmd[5] = "\376Gyx";
cmd[2] = (char) col + 1;
cmd[3] = (char) row + 1;
drv_generic_serial_write(cmd, 4);
drv_generic_serial_write(data, len);
}
static void drv_MO_defchar(const int ascii, const unsigned char *matrix)
{
int i;
char cmd[11] = "\376N";
cmd[2] = (char) ascii;
for (i = 0; i < 8; i++) {
cmd[i + 3] = matrix[i] & 0x1f;
}
drv_generic_serial_write(cmd, 11);
}
static int drv_MO_contrast(int contrast)
{
static unsigned char Contrast = 0;
char cmd[3] = "\376Pn";
/* -1 is used to query the current contrast */
if (contrast == -1)
return Contrast;
if (contrast < 0)
contrast = 0;
if (contrast > 255)
contrast = 255;
Contrast = contrast;
cmd[2] = Contrast;
drv_generic_serial_write(cmd, 3);
return Contrast;
}
static int drv_MO_backlight(int backlight)
{
static unsigned char Backlight = 0;
char cmd[3] = "\376Bn";
/* -1 is used to query the current backlight */
if (backlight == -1)
return Backlight;
if (backlight < 0)
backlight = 0;
if (backlight > 255)
backlight = 255;
Backlight = backlight;
if (backlight <= 0) {
/* backlight off */
drv_generic_serial_write("\376F", 2);
} else {
/* backlight on for n minutes */
cmd[2] = Backlight;
drv_generic_serial_write(cmd, 3);
}
return Backlight;
}
static int drv_MO_GPI(const int num)
{
static int GPI[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
static time_t T[8], now;
if (num < 0 || num > 7) {
return 0;
}
/* read RPM every two seconds */
if (time(&now) - T[num] >= 2) {
char cmd[3];
unsigned char ans[7];
T[num] = now;
cmd[0] = '\376';
cmd[1] = '\301';
cmd[2] = (char) num + 1;
drv_generic_serial_write(cmd, 3);
usleep(100000);
if (drv_generic_serial_read((char *) ans, 7) == 7) {
if (ans[0] == 0x23 && ans[1] == 0x2a && ans[2] == 0x03 && ans[3] == 0x52 && ans[4] == num + 1) {
GPI[num] = 18750000 / (256 * ans[5] + ans[6]);
} else {
error("%s: strange answer %02x %02x %02x %02x %02x %02x %02x", Name, ans[0], ans[1], ans[2], ans[3],
ans[4], ans[5], ans[6]);
}
}
}
return GPI[num];
}
static int drv_MO_GPO(const int num, const int val)
{
int v = 0;
char cmd[4];
switch (Protocol) {
case 1:
if (num == 0) {
if (val > 0) {
v = 1;
drv_generic_serial_write("\376W", 2); /* GPO on */
} else {
v = 0;
drv_generic_serial_write("\376V", 2); /* GPO off */
}
}
break;
case 2:
if (val <= 0) {
v = 0;
cmd[0] = '\376';
cmd[1] = 'V'; /* GPO off */
cmd[2] = (char) num + 1;
drv_generic_serial_write(cmd, 3);
} else if (val >= 255) {
v = 255;
cmd[0] = '\376';
cmd[1] = 'W'; /* GPO on */
cmd[2] = (char) num + 1;
drv_generic_serial_write(cmd, 3);
} else {
v = val;
cmd[0] = '\376';
cmd[1] = '\300'; /* PWM control */
cmd[2] = (char) num + 1;
cmd[3] = (char) v;
drv_generic_serial_write(cmd, 4);
}
break;
}
return v;
}
static int drv_MO_start(const char *section, const int quiet)
{
int i;
char *model;
char buffer[256];
model = cfg_get(section, "Model", NULL);
if (model != NULL && *model != '\0') {
for (i = 0; Models[i].type != 0xff; i++) {
if (strcasecmp(Models[i].name, model) == 0)
break;
}
if (Models[i].type == 0xff) {
error("%s: %s.Model '%s' is unknown from %s", Name, section, model, cfg_source());
return -1;
}
Model = i;
info("%s: using model '%s'", Name, Models[Model].name);
} else {
info("%s: no '%s.Model' entry from %s, auto-dedecting", Name, section, cfg_source());
Model = -1;
}
if (drv_generic_serial_open(section, Name, 0) < 0)
return -1;
if (Model == -1 || Models[Model].protocol > 1) {
/* read module type */
drv_generic_serial_write("\3767", 2);
usleep(1000);
if (drv_generic_serial_read(buffer, 1) == 1) {
for (i = 0; Models[i].type != 0xff; i++) {
if (Models[i].type == (int) *buffer)
break;
}
info("%s: display reports model '%s' (type 0x%02x)", Name, Models[i].name, Models[i].type);
/* auto-dedection */
if (Model == -1)
Model = i;
/* auto-dedection matches specified model? */
if (Models[i].type != 0xff && Model != i) {
error("%s: %s.Model '%s' from %s does not match dedected Model '%s'", Name, section, model,
cfg_source(), Models[i].name);
return -1;
}
} else {
info("%s: display detection failed.", Name);
}
}
/* initialize global variables */
DROWS = Models[Model].rows;
DCOLS = Models[Model].cols;
GPIS = Models[Model].gpis;
GPOS = Models[Model].gpos;
Protocol = Models[Model].protocol;
if (Protocol > 1) {
/* read serial number */
drv_generic_serial_write("\3765", 2);
usleep(100000);
if (drv_generic_serial_read(buffer, 2) == 2) {
info("%s: display reports serial number 0x%x", Name, *(short *) buffer);
}
/* read version number */
drv_generic_serial_write("\3766", 2);
usleep(100000);
if (drv_generic_serial_read(buffer, 1) == 1) {
info("%s: display reports firmware version 0x%x", Name, *buffer);
}
}
drv_MO_clear();
drv_generic_serial_write("\376B", 3); /* backlight on */
drv_generic_serial_write("\376K", 2); /* cursor off */
drv_generic_serial_write("\376T", 2); /* blink off */
drv_generic_serial_write("\376D", 2); /* line wrapping off */
drv_generic_serial_write("\376R", 2); /* auto scroll off */
/* set contrast */
if (cfg_number(section, "Contrast", 0, 0, 255, &i) > 0) {
drv_MO_contrast(i);
}
/* set backlight */
if (cfg_number(section, "Backlight", 0, 0, 255, &i) > 0) {
drv_MO_backlight(i);
}
if (!quiet) {
if (drv_generic_text_greet(Models[Model].name, "MatrixOrbital")) {
sleep(3);
drv_MO_clear();
}
}
return 0;
}
/****************************************/
/*** plugins ***/
/****************************************/
static void plugin_contrast(RESULT * result, const int argc, RESULT * argv[])
{
double contrast;
switch (argc) {
case 0:
contrast = drv_MO_contrast(-1);
SetResult(&result, R_NUMBER, &contrast);
break;
case 1:
contrast = drv_MO_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_MO_backlight(-1);
SetResult(&result, R_NUMBER, &backlight);
break;
case 1:
backlight = drv_MO_backlight(R2N(argv[0]));
SetResult(&result, R_NUMBER, &backlight);
break;
default:
error("%s::backlight(): 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) */
/* using drv_generic_gpio_draw(W) */
/****************************************/
/*** exported functions ***/
/****************************************/
/* list models */
int drv_MO_list(void)
{
int i;
for (i = 0; Models[i].type != 0xff; i++) {
printf("%s ", Models[i].name);
}
return 0;
}
/* initialize driver & display */
int drv_MO_init(const char *section, const int quiet)
{
WIDGET_CLASS wc;
int ret;
info("%s: %s", Name, "$Rev$");
/* display preferences */
XRES = 5; /* pixel width of one char */
YRES = 8; /* pixel height of one char */
CHARS = 8; /* number of user-defineable characters */
CHAR0 = 0; /* ASCII of first user-defineable char */
GOTO_COST = 4; /* number of bytes a goto command requires */
/* real worker functions */
drv_generic_text_real_write = drv_MO_write;
drv_generic_text_real_defchar = drv_MO_defchar;
drv_generic_gpio_real_get = drv_MO_GPI;
drv_generic_gpio_real_set = drv_MO_GPO;
/* start display */
if ((ret = drv_MO_start(section, quiet)) != 0)
return ret;
/* 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 */
/* initialize generic GPIO driver */
if ((ret = drv_generic_gpio_init(section, Name)) != 0)
return ret;
/* 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);
return 0;
}
/* close driver & display */
int drv_MO_quit(const int quiet)
{
info("%s: shutting down display.", Name);
drv_generic_text_quit();
drv_generic_gpio_quit();
/* clear display */
drv_MO_clear();
/* say goodbye... */
if (!quiet) {
drv_generic_text_greet("goodbye!", NULL);
}
drv_generic_serial_close();
return (0);
}
DRIVER drv_MatrixOrbital = {
.name = Name,
.list = drv_MO_list,
.init = drv_MO_init,
.quit = drv_MO_quit,
};
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