/* $Id: drv_Crystalfontz.c,v 1.5 2004/01/25 05:30:09 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 1.5 2004/01/25 05:30:09 reinelt * plugin_netdev for parsing /proc/net/dev added * * Revision 1.4 2004/01/23 07:04:03 reinelt * icons finished! * * Revision 1.3 2004/01/23 04:53:34 reinelt * icon widget added (not finished yet!) * * Revision 1.2 2004/01/22 07:57:45 reinelt * several bugs fixed where segfaulting on layout>display * Crystalfontz driver optimized, 632 display already works * * 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_icon.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; static int Protocol; // Fixme: // static int GPO[8]; static int GPOS; 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 }, { 0x31, "631", 2, 16, 0, 2 }, { 0x32, "632", 2, 16, 0, 1 }, { 0x33, "633", 2, 16, 0, 2 }, { 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_defchar (int ascii, char *buffer) { char cmd[2]="\031n"; // set custom char bitmap // user-defineable chars start at 128, but are defined at 0 cmd[1]=(char)(ascii-CHAR0); drv_generic_serial_write (cmd, 2); drv_generic_serial_write (buffer, 8); } static int drv_CF_start (char *section) { int i; char *model; char buffer[17]; 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; } // open serial port if (drv_generic_serial_open(section, Name)<0) return -1; // MR: why such a large delay? usleep(350*1000); // read display type memset(buffer, 0, sizeof(buffer)); drv_generic_serial_write ("\1", 2); usleep(250*1000); #if 1 { int len=drv_generic_serial_read (buffer, 16); debug ("Michi: len=<%d> buffer=<%s>", len, buffer); } #else if (drv_generic_serial_read (buffer, 16)==16) { info ("%s: display reports serial number 0x%x", Name, *(short*)buffer); } #endif // initialize global variables DROWS = Models[Model].rows; DCOLS = Models[Model].cols; GPOS = Models[Model].gpos; Protocol = Models[Model].protocol; 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 *** // **************************************** // 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_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; // display preferences XRES = 6; // pixel width of one char YRES = 8; // pixel height of one char CHARS = 8; // number of user-defineable characters CHAR0 = 128; // ASCII of first user-defineable char GOTO_COST = 3; // number of bytes a goto command requires // real worker functions drv_generic_text_real_write = drv_generic_serial_write; drv_generic_text_real_goto = drv_CF_goto; drv_generic_text_real_defchar = drv_CF_defchar; // start display if ((ret=drv_CF_start (section))!=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) return ret; // add fixed chars to the bar driver drv_generic_text_bar_add_segment (0, 0, 255, 32); // ASCII 32 = blank // 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 ("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, };