dtv-scan-tables.git - Digital TV scan tables

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author	Christoph Pfister <pfister@linuxtv.org>	2008-05-02 14:26:44 +0200
committer	Mauro Carvalho Chehab <mchehab@redhat.com>	2008-05-02 14:26:44 +0200
commit	198c94d4c656112b6913b23f9f9fd2c3a8492573 (patch)
tree	18f66c41df579fbae4fb7f0b855b2724b029091a /dvb-t/se-Lonneberga
parent	e1f2108901f1f44bb05362c5756c91908fd027b2 (diff)
download	dtv-scan-tables-198c94d4c656112b6913b23f9f9fd2c3a8492573.tar.gz

add scan file for de-Freiburg

http://linuxtv.org/pipermail/linux-dvb/2008-April/025799.html

Diffstat (limited to 'dvb-t/se-Lonneberga')

0 files changed, 0 insertions, 0 deletions

/* $Id: HD44780.c,v 1.4 2000/04/15 16:56:52 reinelt Exp $ * * driver for display modules based on the HD44780 chip * * 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: HD44780.c,v $ * Revision 1.4 2000/04/15 16:56:52 reinelt * * moved delay loops to udelay.c * renamed -d (debugging) switch to -v (verbose) * new switch -d to calibrate delay loop * 'Delay' entry for HD44780 back again * delay loops will not calibrate automatically, because this will fail with hich CPU load * * Revision 1.3 2000/04/15 11:13:54 reinelt * * added '-d' (debugging) switch * added several debugging messages * removed config entry 'Delay' for HD44780 driver * delay loop for HD44780 will be calibrated automatically * * Revision 1.2 2000/04/13 06:09:52 reinelt * * added BogoMips() to system.c (not used by now, maybe sometimes we can * calibrate our delay loop with this value) * * added delay loop to HD44780 driver. It seems to be quite fast now. Hopefully * no compiler will optimize away the delay loop! * * Revision 1.1 2000/04/12 08:05:45 reinelt * * first version of the HD44780 driver * */ /* * * exported fuctions: * * struct LCD HD44780[] * */ #include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <time.h> #include <signal.h> #include <errno.h> #include <asm/io.h> #include "debug.h" #include "cfg.h" #include "display.h" #include "udelay.h" #define XRES 5 #define YRES 8 #define CHARS 8 #define BARS ( BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2 ) typedef struct { int len1; int len2; int type; int segment; } BAR; typedef struct { int len1; int len2; int type; int used; int ascii; } SEGMENT; static LCD Lcd; static unsigned short Port=0; static char Txt[4][40]; static BAR Bar[4][40]; static int nSegment=2; static SEGMENT Segment[128] = {{ len1:0, len2:0, type:255, used:0, ascii:32 }, { len1:255, len2:255, type:255, used:0, ascii:255 }}; static void HD_command (unsigned char cmd, int delay) { outb (cmd, Port); // put data on DB1..DB8 outb (0x02, Port+2); // set Enable = bit 0 invertet udelay (1); outb (0x03, Port+2); // clear Enable udelay (delay); } static void HD_write (char *string, int len, int delay) { while (len--) { outb (*string++, Port); // put data on DB1..DB8 outb (0x00, Port+2); // set Enable = bit 0 invertet udelay (1); outb (0x01, Port+2); // clear Enable udelay (delay); } } static int HD_open (void) { debug ("using port 0x%x\n", Port); if (ioperm(Port, 3, 1)!=0) { fprintf (stderr, "HD44780: ioperm(0x%x) failed: %s\n", Port, strerror(errno)); return -1; } HD_command (0x30, 4100); // 8 Bit mode, wait 4.1 ms HD_command (0x30, 100); // 8 Bit mode, wait 100 us HD_command (0x30, 4100); // 8 Bit mode, wait 4.1 ms HD_command (0x38, 40); // 8 Bit mode, 1/16 duty cycle, 5x8 font HD_command (0x08, 40); // Display off, cursor off, blink off HD_command (0x0c, 1640); // Display on, cursor off, blink off, wait 1.64 ms HD_command (0x06, 40); // curser moves to right, no shift return 0; } static void HD_process_bars (void) { int row, col; int i, j; for (i=2; i<nSegment && Segment[i].used; i++); for (j=i+1; j<nSegment; j++) { if (Segment[j].used) Segment[i++]=Segment[j]; } nSegment=i; for (row=0; row<Lcd.rows; row++) { for (col=0; col<Lcd.cols; col++) { if (Bar[row][col].type==0) continue; for (i=0; i<nSegment; i++) { if (Segment[i].type & Bar[row][col].type && Segment[i].len1== Bar[row][col].len1 && Segment[i].len2== Bar[row][col].len2) break; } if (i==nSegment) { nSegment++; Segment[i].len1=Bar[row][col].len1; Segment[i].len2=Bar[row][col].len2; Segment[i].type=Bar[row][col].type; Segment[i].used=0; Segment[i].ascii=-1; } Bar[row][col].segment=i; } } } static int HD_segment_diff (int i, int j) { int RES; int i1, i2, j1, j2; if (i==j) return 65535; if (!(Segment[i].type & Segment[j].type)) return 65535; if (Segment[i].len1==0 && Segment[j].len1!=0) return 65535; if (Segment[i].len2==0 && Segment[j].len2!=0) return 65535; RES=Segment[i].type & BAR_H ? XRES:YRES; if (Segment[i].len1>=RES && Segment[j].len1<RES) return 65535; if (Segment[i].len2>=RES && Segment[j].len2<RES) return 65535; if (Segment[i].len1==Segment[i].len2 && Segment[j].len1!=Segment[j].len2) return 65535; i1=Segment[i].len1; if (i1>RES) i1=RES; i2=Segment[i].len2; if (i2>RES) i2=RES; j1=Segment[j].len1; if (j1>RES) i1=RES; j2=Segment[j].len2; if (j2>RES) i2=RES; return (i1-i2)*(i1-i2)+(j1-j2)*(j1-j2); } static void HD_compact_bars (void) { int i, j, r, c, min; int pack_i, pack_j; int pass1=1; int error[nSegment][nSegment]; if (nSegment>CHARS+2) { for (i=2; i<nSegment; i++) { for (j=0; j<nSegment; j++) { error[i][j]=HD_segment_diff(i,j); } } while (nSegment>CHARS+2) { min=65535; pack_i=-1; pack_j=-1; for (i=2; i<nSegment; i++) { if (pass1 && Segment[i].used) continue; for (j=0; j<nSegment; j++) { if (error[i][j]<min) { min=error[i][j]; pack_i=i; pack_j=j; } } } if (pack_i==-1) { if (pass1) { pass1=0; continue; } else { fprintf (stderr, "HD44780: unable to compact bar characters\n"); nSegment=CHARS; break; } } nSegment--; Segment[pack_i]=Segment[nSegment]; for (i=0; i<nSegment; i++) { error[pack_i][i]=error[nSegment][i]; error[i][pack_i]=error[i][nSegment]; } for (r=0; r<Lcd.rows; r++) { for (c=0; c<Lcd.cols; c++) { if (Bar[r][c].segment==pack_i) Bar[r][c].segment=pack_j; if (Bar[r][c].segment==nSegment) Bar[r][c].segment=pack_i; } } } } } static void HD_define_chars (void) { int c, i, j; char buffer[8]; for (i=2; i<nSegment; i++) { if (Segment[i].used) continue; if (Segment[i].ascii!=-1) continue; for (c=0; c<CHARS; c++) { for (j=2; j<nSegment; j++) { if (Segment[j].ascii==c) break; } if (j==nSegment) break; } Segment[i].ascii=c; switch (Segment[i].type) { case BAR_L: for (j=0; j<4; j++) { char Pixel[] = { 0, 1, 3, 7, 15, 31 }; buffer[j]=Pixel[Segment[i].len1]; buffer[j+4]=Pixel[Segment[i].len2]; } break; case BAR_R: for (j=0; j<4; j++) { char Pixel[] = { 0, 16, 24, 28, 30, 31 }; buffer[j]=Pixel[Segment[i].len1]; buffer[j+4]=Pixel[Segment[i].len2]; } break; case BAR_U: for (j=0; j<Segment[i].len1; j++) { buffer[7-j]=31; } for (; j<YRES; j++) { buffer[7-j]=0; } break; case BAR_D: for (j=0; j<Segment[i].len1; j++) { buffer[j]=31; } for (; j<YRES; j++) { buffer[j]=0; } break; } HD_command (0x40|8*c, 40); HD_write (buffer, 8, 120); // 120 usec delay for CG RAM write } } int HD_clear (void) { int row, col; for (row=0; row<Lcd.rows; row++) { for (col=0; col<Lcd.cols; col++) { Txt[row][col]='\t'; Bar[row][col].len1=-1; Bar[row][col].len2=-1; Bar[row][col].type=0; Bar[row][col].segment=-1; } } HD_command (0x01, 1640); // clear display return 0; } static void HD_quit (int signal); //forward declaration int HD_init (LCD *Self) { int rows=-1, cols=-1; char *s, *e; s=cfg_get ("Port"); if (s==NULL || *s=='\0') { fprintf (stderr, "HD44780: no 'Port' entry in %s\n", cfg_file()); return -1; } if ((Port=strtol(s, &e, 0))==0 || *e!='\0') { fprintf (stderr, "HD44780: bad port '%s' in %s\n", s, cfg_file()); return -1; } s=cfg_get ("Delay"); if (s==NULL || *s=='\0') { fprintf (stderr, "HD44780: no 'Delay' entry in %s\n", cfg_file()); return -1; } if ((loops_per_usec=strtol(s, &e, 0))==0 || *e!='\0') { fprintf (stderr, "HD44780: bad delay '%s' in %s\n", s, cfg_file()); return -1; } s=cfg_get("Size"); if (s==NULL || *s=='\0') { fprintf (stderr, "HD44780: no 'Size' entry in %s\n", cfg_file()); return -1; } if (sscanf(s,"%dx%d",&cols,&rows)!=2 || rows<1 || cols<1) { fprintf(stderr,"HD44780: bad size '%s'\n",s); return -1; } Self->rows=rows; Self->cols=cols; Lcd=*Self; if (HD_open()!=0) return -1; HD_clear(); signal(SIGINT, HD_quit); signal(SIGQUIT, HD_quit); signal(SIGTERM, HD_quit); return 0; } void HD_goto (int row, int col) { int pos; pos=(row%2)*64+col; if (row>2) pos+=20; HD_command (0x80|pos, 40); } int HD_put (int row, int col, char *text) { char *p=&Txt[row][col]; char *t=text; while (*t && col++<=Lcd.cols) { *p++=*t++; } return 0; } int HD_bar (int type, int row, int col, int max, int len1, int len2) { int rev=0; if (len1<1) len1=1; else if (len1>max) len1=max; if (len2<1) len2=1; else if (len2>max) len2=max; switch (type) { case BAR_L: len1=max-len1; len2=max-len2; rev=1; case BAR_R: while (max>0 && col<=Lcd.cols) { Bar[row][col].type=type; Bar[row][col].segment=-1; if (len1>=XRES) { Bar[row][col].len1=rev?0:XRES; len1-=XRES; } else { Bar[row][col].len1=rev?XRES-len1:len1; len1=0; } if (len2>=XRES) { Bar[row][col].len2=rev?0:XRES; len2-=XRES; } else { Bar[row][col].len2=rev?XRES-len2:len2; len2=0; } max-=XRES; col++; } break; case BAR_U: len1=max-len1; len2=max-len2; rev=1; case BAR_D: while (max>0 && row<=Lcd.rows) { Bar[row][col].type=type; Bar[row][col].segment=-1; if (len1>=YRES) { Bar[row][col].len1=rev?0:YRES; len1-=YRES; } else { Bar[row][col].len1=rev?YRES-len1:len1; len1=0; } if (len2>=YRES) { Bar[row][col].len2=rev?0:YRES; len2-=YRES; } else { Bar[row][col].len2=rev?YRES-len2:len2; len2=0; } max-=YRES; row++; } break; } return 0; } int HD_flush (void) { char buffer[256]; char *p; int s, row, col; HD_process_bars(); HD_compact_bars(); HD_define_chars(); for (s=0; s<nSegment; s++) { Segment[s].used=0; } for (row=0; row<Lcd.rows; row++) { for (col=0; col<Lcd.cols; col++) { s=Bar[row][col].segment; if (s!=-1) { Segment[s].used=1; Txt[row][col]=Segment[s].ascii; } } for (col=0; col<Lcd.cols; col++) { if (Txt[row][col]=='\t') continue; HD_goto (row, col); for (p=buffer; col<Lcd.cols; col++, p++) { if (Txt[row][col]=='\t') break; *p=Txt[row][col]; } HD_write (buffer, p-buffer, 40); } } return 0; } int lcd_hello (void); // prototype from lcd4linux.c static void HD_quit (int signal) { debug ("got signal %d\n", signal); HD_clear(); lcd_hello(); exit (0); } LCD HD44780[] = { { "HD44780", 0, 0, XRES, YRES, BARS, HD_init, HD_clear, HD_put, HD_bar, HD_flush }, { NULL } };


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