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   ---   LCD4Linux News   ---



lcd4linux-0.98

- improved signal-handling: lcd4linux can be restarted by sending a SIGHUP

- lcd4linux uses syslog for messages/warnings etc.

- support for GPO's (general purpose outputs, e.g. to connect a LED)
  The MatroxOrbital Displays have one GPO, and you can connect up to eight
  LED's to the parallel port using two IC's (see README.HD44780.GPO)

- new delay loop for parallel port displays: uses either gettimeofday() or
  rdtsc (time stamp counter on newer processors). This delay needs no longer
  a calibration! The 'Delay'-entry in lcd4linux.conf has gone.

- new raster driver for PNG creation

- new curses-based text driver

- security: lcd4linux.conf must have the same user/group than the executable, 
  and must not me accesible by group and other (i.e. mode 0600). This is 
  necessary because lcd4linux.conf can contain usernames and passwords for 
  POP and IMAP queries.

- support for plugins: new token 'x1'..'x9' for externel programs

- new token 'ic' (ISDN connected/offline, mainly for a LED connected to a GPO)

- APM client: new tokens 'bp', 'bs', 'bd' (battery percentage, status and 
  duration)

- mail client: new tokens 'e1'..'e9' for counting emails in local mailboxes

- new configure-options '--with-drivers=<list>', so you can compile a minimal
  executable which contains only the drivers you need.

- seti@home client: new tokens 'hc' (% completed) and 'ht' (cpu time needed)

- simple web-server driver (see README.Webinterface)

- uses new (kernel 2.4) ppdev system to access parallel port via ioctl()

- mail suport for pop3 and imap4, token 'u1' ..'u9' show unseen mail
  (which is propably incorrect for normal mbox)

- added another verbose level (-vvv) for debugging socket traffic

- added nntp support for count of news/unread messages in subscribed NGs

- implemented time series bar '$t'
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/* $Id: display.h,v 1.21 2003/09/09 05:30:34 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.h,v $
 * Revision 1.21  2003/09/09 05:30:34  reinelt
 * even more icons stuff
 *
 * Revision 1.20  2003/09/01 04:09:34  reinelt
 * icons nearly finished, but MatrixOrbital only
 *
 * Revision 1.19  2003/08/24 05:17:58  reinelt
 * liblcd4linux patch from Patrick Schemitz
 *
 * Revision 1.18  2003/08/17 16:37:39  reinelt
 * more icon framework
 *
 * Revision 1.17  2003/08/17 12:11:58  reinelt
 * framework for icons prepared
 *
 * Revision 1.16  2003/07/24 04:48:09  reinelt
 * 'soft clear' needed for virtual rows
 *
 * Revision 1.15  2002/08/19 04:41:20  reinelt
 * introduced bar.c, moved bar stuff from display.h to bar.h
 *
 * Revision 1.14  2001/03/16 16:40:17  ltoetsch
 * implemented time bar
 *
 * Revision 1.13  2001/02/14 07:40:16  reinelt
 *
 * first (incomplete) GPO implementation
 *
 * Revision 1.12  2001/02/13 09:00:13  reinelt
 *
 * prepared framework for GPO's (general purpose outputs)
 *
 * Revision 1.11  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 1.10  2000/03/26 18:46:28  reinelt
 *
 * bug in pixmap.c that leaded to empty bars fixed
 * name conflicts with X11 resolved
 *
 * Revision 1.9  2000/03/25 05:50:43  reinelt
 *
 * memory leak in Raster_flush closed
 * driver family logic changed
 *
 * Revision 1.8  2000/03/22 15:36:21  reinelt
 *
 * added '-l' switch (list drivers)
 * generic pixmap driver added
 * X11 Framework done
 *
 * Revision 1.7  2000/03/17 09:21:42  reinelt
 *
 * various memory statistics added
 *
 * Revision 1.6  2000/03/13 15:58:24  reinelt
 *
 * release 0.9
 * moved row parsing to parser.c
 * all basic work finished
 *
 * Revision 1.5  2000/03/10 17:36:02  reinelt
 *
 * first unstable but running release
 *
 * Revision 1.4  2000/03/10 10:49:53  reinelt
 *
 * MatrixOrbital driver finished
 *
 * Revision 1.3  2000/03/06 06:04:06  reinelt
 *
 * minor cleanups
 *
 * Revision 1.2  2000/01/16 16:58:50  reinelt
 * *** empty log message ***
 *
 */

#ifndef _DISPLAY_H_
#define _DISPLAY_H_

typedef struct LCD {
  char *name;
  int rows;
  int cols;
  int xres;
  int yres;
  int bars;
  int icons;
  int gpos;
  int (*init)  (struct LCD *Self);
  int (*clear) (int full);
  int (*put)   (int x, int y, char *text);
  int (*bar)   (int type, int x, int y, int max, int len1, int len2);
  int (*icon)  (int num, int seq, int row, int col);
  int (*gpo)   (int num, int val);
  int (*flush) (void);
  int (*quit)  (void);
} LCD;

typedef struct {
  char *name;
  LCD *Model;
} FAMILY;


// output file for Raster driver
// has to be defined here because it's referenced
// even if the raster driver is not included!
extern char *output;

int lcd_list  (void);
int lcd_init  (char *driver);
int lcd_query (int *rows, int *cols, int *xres, int *yres, int *bars, int *icons, int *gpos);
int lcd_clear (int full);
int lcd_put   (int row, int col, char *text);
int lcd_bar   (int type, int row, int col, int max, int len1, int le2);
int lcd_icon  (int num, int seq, int row, int col);
int lcd_gpo   (int num, int val);
int lcd_flush (void);
int lcd_quit  (void);

#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-02 03:31:25 +0000