lcd4linux.git - lcd4linux

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Diffstat (limited to 'widget_bar.h')

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/* $Id: drv_USBLCD.c,v 1.15 2004/06/26 12:04:59 reinelt Exp $ * * new style driver for USBLCD displays * * Copyright 1999-2004 Michael Reinelt <reinelt@eunet.at> * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> * * based on the old-style USBLCD driver which is * Copyright 2002 Robin Adams, Adams IT Services <info@usblcd.de> * * 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_USBLCD.c,v $ * Revision 1.15 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.14 2004/06/26 09:27:21 reinelt * * added '-W' to CFLAGS * changed all C++ comments to C ones * cleaned up a lot of signed/unsigned mistakes * * Revision 1.13 2004/06/26 06:12:15 reinelt * * support for Beckmann+Egle Compact Terminals * some mostly cosmetic changes in the MatrixOrbital and USBLCD driver * added debugging to the generic serial driver * fixed a bug in the generic text driver where icons could be drawn outside * the display bounds * * Revision 1.12 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source * * Revision 1.11 2004/06/19 08:20:19 reinelt * * compiler warning in image driver fixed * bar bug in USBLCD driver fixed * * Revision 1.10 2004/06/06 06:51:59 reinelt * * do not display end splash screen if quiet=1 * * Revision 1.9 2004/06/05 14:56:48 reinelt * * Cwlinux splash screen fixed * USBLCD splash screen fixed * plugin_i2c qprintf("%f") replaced with snprintf() * * Revision 1.8 2004/06/05 06:41:40 reinelt * * chancged splash screen again * * Revision 1.7 2004/06/05 06:13:12 reinelt * * splash screen for all text-based display drivers * * Revision 1.6 2004/06/02 09:41:19 reinelt * * prepared support for startup splash screen * * Revision 1.5 2004/05/31 05:38:02 reinelt * * fixed possible bugs with user-defined chars (clear high bits) * thanks to Andy Baxter for debugging the MilfordInstruments driver! * * Revision 1.4 2004/05/26 11:37:36 reinelt * * Curses driver ported. * * Revision 1.3 2004/05/23 08:58:30 reinelt * * icon bug with USBLCD fixed * * Revision 1.2 2004/03/19 09:17:46 reinelt * * removed the extra 'goto' function, row and col are additional parameters * of the write() function now. * * Revision 1.1 2004/02/15 08:22:47 reinelt * ported USBLCD driver to NextGeneration * added drv_M50530.c (I forgot yesterday, sorry) * removed old drivers M50530.c and USBLCD.c * */ /* * * exported fuctions: * * struct DRIVER drv_USBLCD * */ #include "config.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <termios.h> #include <fcntl.h> #include <sys/ioctl.h> #include <sys/time.h> #include "debug.h" #include "cfg.h" #include "qprintf.h" #include "udelay.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" #define IOC_GET_HARD_VERSION 1 #define IOC_GET_DRV_VERSION 2 static char Name[]="USBLCD"; static char *Port=NULL; static int usblcd_file; static unsigned char *Buffer; static unsigned char *BufPtr; /****************************************/ /*** hardware dependant functions ***/ /****************************************/ static void drv_UL_send () { #if 0 struct timeval now, end; gettimeofday (&now, NULL); #endif write(usblcd_file,Buffer,BufPtr-Buffer); #if 0 gettimeofday (&end, NULL); debug ("send %d bytes in %d msec (%d usec/byte)", BufPtr-Buffer, (1000000*(end.tv_sec-now.tv_sec)+end.tv_usec-now.tv_usec)/1000, (1000000*(end.tv_sec-now.tv_sec)+end.tv_usec-now.tv_usec)/(BufPtr-Buffer)); #endif BufPtr=Buffer; } static void drv_UL_command (const unsigned char cmd) { *BufPtr++='\0'; *BufPtr++=cmd; } static void drv_UL_clear (void) { drv_UL_command (0x01); /* clear display */ drv_UL_command (0x03); /* return home */ drv_UL_send(); /* flush buffer */ } static void drv_UL_write (const int row, const int col, const char *data, int len) { int pos = (row%2)*64 + (row/2)*20 + col; drv_UL_command (0x80|pos); while (len--) { if(*data == 0) *BufPtr++ = 0; *BufPtr++ = *data++; } drv_UL_send(); } static void drv_UL_defchar (const int ascii, const unsigned char *matrix) { int i; drv_UL_command (0x40|8*ascii); for (i = 0; i < 8; i++) { if ((*matrix & 0x1f) == 0) *BufPtr++ = 0; *BufPtr++ = *matrix++ & 0x1f; } drv_UL_send(); } static int drv_UL_start (const char *section, const int quiet) { int rows=-1, cols=-1; int major, minor; char *port, *s; char buf[128]; if (Port) { free(Port); Port=NULL; } if ((port=cfg_get(section, "Port", NULL))==NULL || *port=='\0') { error ("%s: no '%s.Port' entry from %s", Name, section, cfg_source()); return -1; } if (port[0] == '/') { Port = strdup(port); } else { int len = 5+strlen(port)+1; Port = malloc(len); qprintf(Port, len, "/dev/%s", port); } debug ("using device %s ", Port); s=cfg_get(section, "Size", NULL); if (s==NULL || *s=='\0') { error ("%s: no '%s.Size' entry from %s", Name, section, cfg_source()); return -1; } if (sscanf(s,"%dx%d",&cols,&rows)!=2 || rows<1 || cols<1) { error ("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source()); free (s); return -1; } DROWS = rows; DCOLS = cols; /* Init the command buffer */ Buffer = (char*)malloc(1024); if (Buffer==NULL) { error ("%s: coommand buffer could not be allocated: malloc() failed", Name); return -1; } /* open port */ usblcd_file=open(Port,O_WRONLY); if (usblcd_file==-1) { error ("%s: open(%s) failed: %s", Name, Port, strerror(errno)); return -1; } /* get driver version */ memset(buf,0,sizeof(buf)); if (ioctl(usblcd_file, IOC_GET_DRV_VERSION, buf)!=0) { error ("USBLCD: ioctl() failed, could not get Driver Version!"); return -1; } info("%s: Driver Version: %s", Name, buf); if (sscanf(buf,"USBLCD Driver Version %d.%d",&major,&minor)!=2) { error("%s: could not read Driver Version!", Name); return -1; } if (major!=1) { error("%d: Driver Version %d not supported!", Name, major); return -1; } memset(buf,0,sizeof(buf)); if (ioctl(usblcd_file, IOC_GET_HARD_VERSION, buf)!=0) { error ("%s: ioctl() failed, could not get Hardware Version!", Name); return -1; } info("%s: Hardware Version: %s", Name, buf); if (sscanf(buf,"%d.%d",&major,&minor)!=2) { error("%s: could not read Hardware Version!", Name); return -1; } if (major!=1) { error("%s: Hardware Version %d not supported!", Name, major); return -1; } /* reset coimmand buffer */ BufPtr=Buffer; /* initialize display */ drv_UL_command (0x29); /* 8 Bit mode, 1/16 duty cycle, 5x8 font */ drv_UL_command (0x08); /* Display off, cursor off, blink off */ drv_UL_command (0x0c); /* Display on, cursor off, blink off */ drv_UL_command (0x06); /* curser moves to right, no shift */ drv_UL_clear(); /* clear display */ if (!quiet) { char buffer[40]; qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS); if (drv_generic_text_greet (buffer, "http://www.usblcd.de")) { sleep (3); drv_UL_clear(); } } return 0; } /****************************************/ /*** plugins ***/ /****************************************/ /* none at the moment... */ /****************************************/ /*** 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_UL_list (void) { printf ("generic"); return 0; } /* initialize driver & display */ int drv_UL_init (const char *section, const int quiet) { WIDGET_CLASS wc; int asc255bug; int ret; /* 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 = 2; /* number of bytes a goto command requires */ /* real worker functions */ drv_generic_text_real_write = drv_UL_write; drv_generic_text_real_defchar = drv_UL_defchar; /* start display */ if ((ret=drv_UL_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 */ /* most displays have a full block on ascii 255, but some have kind of */ /* an 'inverted P'. If you specify 'asc255bug 1 in the config, this */ /* char will not be used, but rendered by the bar driver */ cfg_number(section, "asc255bug", 0, 0, 1, &asc255bug); drv_generic_text_bar_add_segment ( 0, 0,255, 32); /* ASCII 32 = blank */ if (!asc255bug) drv_generic_text_bar_add_segment (255,255,255,255); /* ASCII 255 = block */ /* 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 */ /* none at the moment... */ return 0; } /* close driver & display */ int drv_UL_quit (const int quiet) { info("%s: shutting down.", Name); /* flush buffer */ drv_UL_send(); drv_generic_text_quit(); /* clear display */ drv_UL_clear(); /* say goodbye... */ if (!quiet) { drv_generic_text_greet ("goodbye!", NULL); } debug ("closing port %s", Port); close(usblcd_file); if (Buffer) { free(Buffer); Buffer=NULL; BufPtr=Buffer; } return (0); } DRIVER drv_USBLCD = { name: Name, list: drv_UL_list, init: drv_UL_init, quit: drv_UL_quit, };


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