From 9436ee0cfde00c406e1eadf2a185cc5643833321 Mon Sep 17 00:00:00 2001 From: reinelt <> Date: Wed, 21 Jan 2004 12:36:19 +0000 Subject: [lcd4linux @ 2004-01-21 12:36:19 by reinelt] Crystalfontz NextGeneration driver added --- drv_Crystalfontz.c | 292 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 292 insertions(+) create mode 100644 drv_Crystalfontz.c (limited to 'drv_Crystalfontz.c') diff --git a/drv_Crystalfontz.c b/drv_Crystalfontz.c new file mode 100644 index 0000000..5c3bf1b --- /dev/null +++ b/drv_Crystalfontz.c @@ -0,0 +1,292 @@ +/* $Id: drv_Crystalfontz.c,v 1.1 2004/01/21 12:36:19 reinelt Exp $ + * + * new style driver for Crystalfontz display modules + * + * Copyright 1999, 2000 Michael Reinelt + * Copyright 2004 The LCD4Linux Team + * + * 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. + * + * + * $Log: drv_Crystalfontz.c,v $ + * Revision 1.1 2004/01/21 12:36:19 reinelt + * Crystalfontz NextGeneration driver added + * + */ + +/* + * + * exported fuctions: + * + * struct DRIVER drv_Crystalfontz + * + */ + +#include +#include +#include +#include + +#include "debug.h" +#include "cfg.h" +#include "plugin.h" +#include "widget.h" +#include "widget_text.h" +#include "widget_bar.h" +#include "drv.h" +#include "drv_generic_text.h" +#include "drv_generic_serial.h" + + +static char Name[]="Crystalfontz"; + +static int Model; + +// Fixme: do we need PROTOCOL? +static int GPOS, ICONS, PROTOCOL; + +// Fixme: +// static int GPO[8]; + + +typedef struct { + int type; + char *name; + int rows; + int cols; + int gpos; + int protocol; +} MODEL; + +// Fixme #1: number of gpo's should be verified +// Fixme #2: protocol should be verified +// Fixme #3: do CF displays have type numbers? + +static MODEL Models[] = { + { 0x26, "626", 2, 16, 0, 1 }, + { 0x32, "632", 2, 16, 0, 1 }, + { 0x34, "634", 4, 20, 0, 1 }, + { 0x36, "636", 2, 16, 0, 1 }, + { 0xff, "Unknown", -1, -1, 0, 0 } +}; + + +// **************************************** +// *** hardware dependant functions *** +// **************************************** + +static void drv_CF_goto (int row, int col) +{ + char cmd[3]="\021xy"; // set cursor position + + if (row==0 && col==0) { + drv_generic_serial_write("\001", 1); // cursor home + } else { + cmd[1]=(char)col; + cmd[2]=(char)row; + drv_generic_serial_write(cmd, 3); + } +} + + +static void drv_CF_define_char (int ascii, char *buffer) +{ + char cmd[2]="\031n"; // set custom char bitmap + + cmd[1]=(char)ascii; + drv_generic_serial_write (cmd, 2); + drv_generic_serial_write (buffer, 8); +} + + +static int drv_CF_start (char *section) +{ + int i; + char *model; + + 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 { + error ("%s: no '%s.Model' entry from %s", Name, section, cfg_source()); + return -1; + } + + // initialize global variables + DROWS = Models[Model].rows; + DCOLS = Models[Model].cols; + GPOS = Models[Model].gpos; + PROTOCOL = Models[Model].protocol; + + // open serial port + if (drv_generic_serial_open(section, Name)<0) return -1; + + // MR: why such a large delay? + usleep(350*1000); + + drv_generic_serial_write ("\014", 1); // Form Feed (Clear Display) + drv_generic_serial_write ("\004", 1); // hide cursor + drv_generic_serial_write ("\024", 1); // scroll off + drv_generic_serial_write ("\030", 1); // wrap off + + return 0; +} + + +// **************************************** +// *** plugins *** +// **************************************** + + +static void plugin_contrast (RESULT *result, RESULT *arg1) +{ + char buffer[3]; + double contrast; + + contrast=R2N(arg1); + if (contrast<0 ) contrast=0; + if (contrast>100) contrast=100; + + snprintf (buffer, 3, "\017%c", (int)contrast); + drv_generic_serial_write (buffer, 2); + + SetResult(&result, R_NUMBER, &contrast); +} + + +static void plugin_backlight (RESULT *result, RESULT *arg1) +{ + char buffer[3]; + double backlight; + + backlight=R2N(arg1); + if (backlight<0 ) backlight=0; + if (backlight>100) backlight=100; + + snprintf (buffer, 4, "\016%c", (int)backlight); + drv_generic_serial_write (buffer, 3); + + SetResult(&result, R_NUMBER, &backlight); +} + +// Fixme: other plugins for Fans, Temmperature sensors, ... + + +// **************************************** +// *** widget callbacks *** +// **************************************** + + +int drv_CF_draw_text (WIDGET *W) +{ + return drv_generic_text_draw_text(W, 4, drv_CF_goto, drv_generic_serial_write); +} + + +int drv_CF_draw_bar (WIDGET *W) +{ + return drv_generic_text_draw_bar(W, 4, drv_CF_define_char, drv_CF_goto, drv_generic_serial_write); +} + + +// **************************************** +// *** exported functions *** +// **************************************** + + +// list models +int drv_CF_list (void) +{ + int i; + + for (i=0; Models[i].type!=0xff; i++) { + printf ("%s ", Models[i].name); + } + return 0; +} + + +// initialize driver & display +int drv_CF_init (char *section) +{ + WIDGET_CLASS wc; + int ret; + + XRES=5; + YRES=8; + CHARS=8; + + // start display + if ((ret=drv_CF_start (section))!=0) + return ret; + + // initialize generic text driver + if ((ret=drv_generic_text_init(Name))!=0) + return ret; + + // initialize generic bar driver + if ((ret=drv_generic_text_bar_init())!=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_CF_draw_text; + widget_register(&wc); + + // register bar widget + wc=Widget_Bar; + wc.draw=drv_CF_draw_bar; + widget_register(&wc); + + // register plugins + AddFunction ("contrast", 1, plugin_contrast); + AddFunction ("backlight", 1, plugin_backlight); + + return 0; +} + + +// close driver & display +int drv_CF_quit (void) { + + info("%s: shutting down.", Name); + drv_generic_serial_close(); + drv_generic_text_quit(); + + return (0); +} + + +DRIVER drv_Crystalfontz = { + name: Name, + list: drv_CF_list, + init: drv_CF_init, + quit: drv_CF_quit, +}; + -- cgit v1.2.3