/* $Id: display.c,v 1.42 2003/09/10 03:48:23 reinelt Exp $ * * framework for device drivers * * Copyright 1999, 2000 by Michael Reinelt (reinelt@eunet.at) * * This program 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. * * This program 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: display.c,v $ * Revision 1.42  2003/09/10 03:48:23  reinelt * Icons for M50530, new processing scheme (Ticks.Text...) * * Revision 1.41  2003/09/09 05:30:34  reinelt * even more icons stuff * * Revision 1.40  2003/09/01 04:09:34  reinelt * icons nearly finished, but MatrixOrbital only * * Revision 1.39  2003/08/24 05:17:58  reinelt * liblcd4linux patch from Patrick Schemitz * * Revision 1.38  2003/08/24 04:31:56  reinelt * icon.c icon.h added * * Revision 1.37  2003/08/17 16:37:39  reinelt * more icon framework * * Revision 1.36  2003/08/17 12:11:58  reinelt * framework for icons prepared * * Revision 1.35  2003/07/24 04:48:09  reinelt * 'soft clear' needed for virtual rows * * Revision 1.34  2002/12/05 19:09:57  reinelt * patches for gcc-3.2 * * Revision 1.33  2002/09/11 05:16:33  reinelt * added Cwlinux driver * * Revision 1.32  2002/08/19 04:41:20  reinelt * introduced bar.c, moved bar stuff from display.h to bar.h * * Revision 1.31  2002/08/17 13:10:23  reinelt * USBLCD driver added * * Revision 1.30  2002/04/29 11:00:28  reinelt * * added Toshiba T6963 driver * added ndelay() with nanosecond resolution * * Revision 1.29  2001/09/10 13:55:53  reinelt * M50530 driver * * Revision 1.28  2001/03/16 16:40:17  ltoetsch * implemented time bar * * Revision 1.27  2001/03/15 14:25:05  ltoetsch * added unread/total news * * Revision 1.26  2001/03/12 12:39:36  reinelt * * reworked autoconf a lot: drivers may be excluded, #define's went to config.h * * Revision 1.25  2001/03/09 13:08:11  ltoetsch * Added Text driver * * Revision 1.24  2001/03/01 11:08:16  reinelt * * reworked configure to allow selection of drivers * * Revision 1.23  2001/02/14 07:40:16  reinelt * * first (incomplete) GPO implementation * * Revision 1.22  2001/02/13 09:00:13  reinelt * * prepared framework for GPO's (general purpose outputs) * * Revision 1.21  2000/11/28 16:46:11  reinelt * * first try to support display of SIN router * * Revision 1.20  2000/08/10 09:44:09  reinelt * * new debugging scheme: error(), info(), debug() * uses syslog if in daemon mode * * Revision 1.19  2000/08/09 09:50:29  reinelt * * opened 0.98 development * removed driver-specific signal-handlers * added 'quit'-function to driver structure * added global signal-handler * * Revision 1.18  2000/05/02 23:07:48  herp * Crystalfontz initial coding * * Revision 1.17  2000/05/02 06:05:00  reinelt * * driver for 3Com Palm Pilot added * * Revision 1.16  2000/04/28 05:19:55  reinelt * * first release of the Beckmann+Egle driver * * Revision 1.15  2000/04/12 08:05:45  reinelt * * first version of the HD44780 driver * * Revision 1.14  2000/04/03 17:31:52  reinelt * * suppress welcome message if display is smaller than 20x2 * change lcd4linux.ppm to 32 pixel high so KDE won't stretch the icon * * Revision 1.13  2000/03/30 16:46:57  reinelt * * configure now handles '--with-x' and '--without-x' correct * * Revision 1.12  2000/03/26 18:46:28  reinelt * * bug in pixmap.c that leaded to empty bars fixed * name conflicts with X11 resolved * * Revision 1.11  2000/03/25 05:50:43  reinelt * * memory leak in Raster_flush closed * driver family logic changed * * Revision 1.10  2000/03/23 07:24:48  reinelt * * PPM driver up and running (but slow!) * * Revision 1.9  2000/03/22 15:36:21  reinelt * * added '-l' switch (list drivers) * generic pixmap driver added * X11 Framework done * * Revision 1.8  2000/03/19 08:41:28  reinelt * * documentation available! README, README.MatrixOrbital, README.Drivers * added Skeleton.c as a starting point for new drivers * * Revision 1.7  2000/03/18 08:07:04  reinelt * * vertical bars implemented * bar compaction improved * memory information implemented * * Revision 1.6  2000/03/17 09:21:42  reinelt * * various memory statistics added * * Revision 1.5  2000/03/13 15:58:24  reinelt * * release 0.9 * moved row parsing to parser.c * all basic work finished * * Revision 1.4  2000/03/10 17:36:02  reinelt * * first unstable but running release * * Revision 1.3  2000/03/10 10:49:53  reinelt * * MatrixOrbital driver finished * * Revision 1.2  2000/03/06 06:04:06  reinelt * * minor cleanups * *//*  * exported functions: * * lcd_list (void) *   lists all available drivers to stdout * * lcd_init (char *driver) *    initializes the named driver * * lcd_query (int *rows, int *cols, int *xres, int *yres, int *bars, int *gpos) *    queries the attributes of the selected driver * * lcd_clear () *    clears the display * * int lcd_put (int row, int col, char *text) *    writes text at row, col * * int lcd_bar (int type, int row, int col, int max, int len1, int len2) *    draws a specified bar at row, col with len * * int lcd_icon (int num, int seq, int row, int col) *    draws icon #num sequence #seq at row, col * * int lcd_gpo (int num, int val) *    sets GPO #num to val * * int lcd_flush (void) *    flushes the framebuffer to the display * * int lcd_quit (void) *    de-initializes the driver */#include "config.h"#include <stdlib.h>#include <stdio.h>#include <string.h>#include <math.h>#include "debug.h"#include "cfg.h"#include "display.h"#include "bar.h"extern LCD BeckmannEgle[];extern LCD Crystalfontz[];extern LCD Cwlinux[];extern LCD HD44780[];extern LCD M50530[];extern LCD T6963[];extern LCD USBLCD[];extern LCD MatrixOrbital[];extern LCD PalmPilot[];extern LCD Raster[];extern LCD SIN[];extern LCD Skeleton[];extern LCD XWindow[];extern LCD Text[];// output file for Raster driver// has to be defined here because it's referenced// even if the raster driver is not included!char *output=NULL;FAMILY Driver[] = {#ifdef WITH_BECKMANNEGLE  { "Beckmann+Egle", BeckmannEgle },#endif#ifdef WITH_CRYSTALFONTZ  { "Crystalfontz", Crystalfontz },#endif#ifdef WITH_CWLINUX  { "Cwlinux", Cwlinux },#endif#ifdef WITH_HD44780  { "HD 44780 based", HD44780 },#endif#ifdef WITH_M50530  { "M50530 based", M50530 },#endif#ifdef WITH_T6963  { "T6963 based", T6963 },#endif#ifdef WITH_USBLCD  { "USBLCD", USBLCD },#endif#ifdef WITH_MATRIXORBITAL  { "Matrix Orbital", MatrixOrbital },#endif#ifdef WITH_PALMPILOT  { "3Com Palm Pilot", PalmPilot },#endif#if defined (WITH_PNG) || defined(WITH_PPM)  { "Raster", Raster },#endif#ifdef WITH_SIN  { "SIN Router", SIN },#endif#ifdef WITH_SKELETON  { "Skeleton", Skeleton },#endif#ifdef WITH_X11  { "X Window System", XWindow },#endif#ifdef WITH_TEXT  { "ncurses Text", Text },#endif  { NULL }};static LCD *Lcd = NULL;int lcd_list (void){  int i, j;  printf ("available display drivers:");    for (i=0; Driver[i].name; i++) {    printf ("\n   %-16s:", Driver[i].name);    for (j=0; Driver[i].Model[j].name; j++) {      printf (" %s", Driver[i].Model[j].name);    }  }  printf ("\n");  return 0;}int lcd_init (char *driver){  int i, j;  for (i=0; Driver[i].name; i++) {    for (j=0; Driver[i].Model[j].name; j++) {      if (strcmp (Driver[i].Model[j].name, driver)==0) {	Lcd=&Driver[i].Model[j];	if (Lcd->init==NULL) return 0;	return Lcd->init(Lcd);      }    }  }  error ("lcd_init(%s) failed: no such display", driver);  return -1;}int lcd_query (int *rows, int *cols, int *xres, int *yres, int *bars, int *icons, int *gpos){  if (Lcd==NULL)    return -1;    if (rows)  *rows=Lcd->rows;  if (cols)  *cols=Lcd->cols;  if (xres)  *xres=Lcd->xres;  if (yres)  *yres=Lcd->yres;  if (bars)  *bars=Lcd->bars;  if (icons) *icons=Lcd->icons;  if (gpos)  *gpos=Lcd->gpos;  return 0;}int lcd_clear (int full){  if (Lcd->clear==NULL) return 0;  return Lcd->clear(full);}int lcd_put (int row, int col, char *text){  if (row<1 || row>Lcd->rows) return -1;  if (col<1 || col>Lcd->cols) return -1;  if (Lcd->put==NULL) return 0;  return Lcd->put(row-1, col-1, text);}int lcd_bar (int type, int row, int col, int max, int len1, int len2){  if (Lcd->bar==NULL) return 0;  if (row<1 || row>Lcd->rows) return -1;  if (col<1 || col>Lcd->cols) return -1;  if (!(type & (BAR_H2 | BAR_V2 | BAR_T))) len2=len1;  if (type & BAR_LOG) {    len1=(double)max*log(len1+1)/log(max);     if (!(type & BAR_T))      len2=(double)max*log(len2+1)/log(max);   }  return Lcd->bar (type & BAR_HV, row-1, col-1, max, len1, len2);}int lcd_icon (int num, int seq, int row, int col){  if (Lcd->icon==NULL)         return  0;  if (num<1 || num>Lcd->icons) return -1;  if (         row>Lcd->rows)  return -1;  if (         col>Lcd->cols)  return -1;  return Lcd->icon(num-1, seq-1, row-1, col-1);}int lcd_gpo (int num, int val){  if (Lcd->gpo==NULL) return 0;  if (num<1 || num>Lcd->gpos) return -1;  return Lcd->gpo(num-1, val);}int lcd_flush (void){  if (Lcd->flush==NULL) return 0;  return Lcd->flush();}int lcd_quit (void){  if (Lcd->quit==NULL) return 0;  return Lcd->quit();}