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authorreinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2004-02-15 08:22:47 +0000
committerreinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2004-02-15 08:22:47 +0000
commit0dc4d2093be753affc50d1ccb70fb9f5f66ed9b8 (patch)
tree6181889e001a9a40f0c2697508d0a044c9a1340a /M50530.c
parent512838d1786580e053432073638dfb695c78df79 (diff)
downloadlcd4linux-0dc4d2093be753affc50d1ccb70fb9f5f66ed9b8.tar.gz
[lcd4linux @ 2004-02-15 08:22:47 by reinelt]
ported USBLCD driver to NextGeneration added drv_M50530.c (I forgot yesterday, sorry) removed old drivers M50530.c and USBLCD.c git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@366 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to 'M50530.c')
-rw-r--r--M50530.c401
1 files changed, 0 insertions, 401 deletions
diff --git a/M50530.c b/M50530.c
deleted file mode 100644
index eec199d..0000000
--- a/M50530.c
+++ /dev/null
@@ -1,401 +0,0 @@
-/* $Id: M50530.c,v 1.18 2004/01/30 20:57:55 reinelt Exp $
- *
- * driver for display modules based on the M50530 chip
- *
- * Copyright 1999, 2000 Michael Reinelt <reinelt@eunet.at>
- *
- * 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: M50530.c,v $
- * Revision 1.18 2004/01/30 20:57:55 reinelt
- * HD44780 patch from Martin Hejl
- * dmalloc integrated
- *
- * Revision 1.17 2004/01/09 04:16:06 reinelt
- * added 'section' argument to cfg_get(), but NULLed it on all calls by now.
- *
- * Revision 1.16 2003/10/05 17:58:50 reinelt
- * libtool junk; copyright messages cleaned up
- *
- * Revision 1.15 2003/09/11 04:09:53 reinelt
- * minor cleanups
- *
- * Revision 1.14 2003/09/10 03:48:22 reinelt
- * Icons for M50530, new processing scheme (Ticks.Text...)
- *
- * Revision 1.13 2003/09/09 06:54:43 reinelt
- * new function 'cfg_number()'
- *
- * Revision 1.12 2003/08/24 05:17:58 reinelt
- * liblcd4linux patch from Patrick Schemitz
- *
- * Revision 1.11 2003/08/16 07:31:35 reinelt
- * double buffering in all drivers
- *
- * Revision 1.10 2003/08/15 07:54:07 reinelt
- * HD44780 4 bit mode implemented
- *
- * Revision 1.9 2003/07/24 04:48:09 reinelt
- * 'soft clear' needed for virtual rows
- *
- * Revision 1.8 2003/04/07 06:02:59 reinelt
- * further parallel port abstraction
- *
- * Revision 1.7 2003/04/04 06:01:59 reinelt
- * new parallel port abstraction scheme
- *
- * Revision 1.6 2003/02/22 07:53:10 reinelt
- * cfg_get(key,defval)
- *
- * Revision 1.5 2002/08/19 10:51:06 reinelt
- * M50530 driver using new generic bar functions
- *
- * Revision 1.4 2002/08/19 07:36:29 reinelt
- *
- * finished bar.c, USBLCD is the first driver that uses the generic bar functions
- *
- * Revision 1.3 2002/08/19 04:41:20 reinelt
- * introduced bar.c, moved bar stuff from display.h to bar.h
- *
- * Revision 1.2 2002/04/30 07:20:15 reinelt
- *
- * implemented the new ndelay(nanoseconds) in all parallel port drivers
- *
- * Revision 1.1 2001/09/11 05:31:37 reinelt
- * M50530 driver
- *
- *
- */
-
-/*
- *
- * exported fuctions:
- *
- * struct LCD M50530[]
- *
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "debug.h"
-#include "cfg.h"
-#include "display.h"
-#include "bar.h"
-#include "icon.h"
-#include "parport.h"
-#include "udelay.h"
-
-#ifdef WITH_DMALLOC
-#include <dmalloc.h>
-#endif
-
-#define XRES 5
-#define YRES 8
-#define CHARS 8
-
-static LCD Lcd;
-static int GPO=0;
-static int Icons;
-
-static char *FrameBuffer1=NULL;
-static char *FrameBuffer2=NULL;
-
-
-static unsigned char SIGNAL_EX;
-static unsigned char SIGNAL_IOC1;
-static unsigned char SIGNAL_IOC2;
-static unsigned char SIGNAL_GPO;
-
-static void M5_command (unsigned int cmd, int delay)
-{
-
- // put data on DB1..DB8
- parport_data (cmd&0xff);
-
- // set I/OC1 (Select inverted)
- // set I/OC2 (AutoFeed inverted)
- parport_control (SIGNAL_IOC1|SIGNAL_IOC2,
- (cmd&0x200?SIGNAL_IOC1:0) |
- (cmd&0x100?SIGNAL_IOC2:0));
-
- // Control data setup time
- ndelay(200);
-
- // send command
- // EX signal pulse width = 500ns
- // Fixme: why 500 ns? Datasheet says 200ns
- parport_toggle (SIGNAL_EX, 1, 500);
-
- // wait
- udelay(delay);
-
-}
-
-
-static void M5_write (unsigned char *string, int len)
-{
- unsigned int cmd;
-
- while (len--) {
- cmd=*string++;
- M5_command (0x100|cmd, 20);
- }
-}
-
-
-static void M5_setGPO (int bits)
-{
- if (Lcd.gpos>0) {
-
- // put data on DB1..DB8
- parport_data (bits);
-
- // 74HCT573 set-up time
- ndelay(20);
-
- // send data
- // 74HCT573 enable pulse width = 24ns
- parport_toggle (SIGNAL_GPO, 1, 24);
- }
-}
-
-
-static void M5_define_char (int ascii, char *buffer)
-{
- M5_command (0x300+192+8*ascii, 20);
- M5_write (buffer, 8);
-}
-
-
-int M5_clear (int full)
-{
-
- memset (FrameBuffer1, ' ', Lcd.rows*Lcd.cols*sizeof(char));
-
- icon_clear();
- bar_clear();
-
- GPO=0;
-
- if (full) {
- memset (FrameBuffer2, ' ', Lcd.rows*Lcd.cols*sizeof(char));
- M5_command (0x0001, 1250); // clear display
- M5_setGPO (GPO); // All GPO's off
- }
-
- return 0;
-}
-
-
-int M5_init (LCD *Self)
-{
- int rows=-1, cols=-1, gpos=-1;
- char *s;
-
- s=cfg_get(NULL, "Size", NULL);
- if (s==NULL || *s=='\0') {
- error ("M50530: no 'Size' entry in %s", cfg_source());
- return -1;
- }
- if (sscanf(s,"%dx%d",&cols,&rows)!=2 || rows<1 || cols<1) {
- error ("M50530: bad size '%s'",s);
- return -1;
- }
-
- if (cfg_number(NULL, "GPOs", 0, 0, 8, &gpos)<0) return -1;
-
- Self->rows=rows;
- Self->cols=cols;
- Self->gpos=gpos;
- Lcd=*Self;
-
- // Init the framebuffers
- FrameBuffer1 = (char*)malloc(Lcd.cols*Lcd.rows*sizeof(char));
- FrameBuffer2 = (char*)malloc(Lcd.cols*Lcd.rows*sizeof(char));
- if (FrameBuffer1==NULL || FrameBuffer2==NULL) {
- error ("HD44780: framebuffer could not be allocated: malloc() failed");
- return -1;
- }
-
- if ((SIGNAL_EX = parport_wire_ctrl ("EX", "STROBE"))==0xff) return -1;
- if ((SIGNAL_IOC1 = parport_wire_ctrl ("IOC1", "SELECT"))==0xff) return -1;
- if ((SIGNAL_IOC2 = parport_wire_ctrl ("IOC2", "AUTOFD"))==0xff) return -1;
- if ((SIGNAL_GPO = parport_wire_ctrl ("GPO", "INIT") )==0xff) return -1;
-
- if (parport_open() != 0) {
- error ("M50530: could not initialize parallel port!");
- return -1;
- }
-
- // set direction: write
- parport_direction (0);
-
- // initialize display
- M5_command (0x00FA, 20); // set function mode
- M5_command (0x0020, 20); // set display mode
- M5_command (0x0050, 20); // set entry mode
- M5_command (0x0030, 20); // set display mode
-
- if (cfg_number(NULL, "Icons", 0, 0, CHARS, &Icons)<0) return -1;
- if (Icons>0) {
- debug ("reserving %d of %d user-defined characters for icons", Icons, CHARS);
- icon_init(Lcd.rows, Lcd.cols, XRES, YRES, CHARS, Icons, M5_define_char);
- Self->icons=Icons;
- Lcd.icons=Icons;
- }
-
- bar_init(rows, cols, XRES, YRES, CHARS-Icons);
- bar_add_segment(0,0,255,32); // ASCII 32 = blank
-
- M5_clear(1);
-
- return 0;
-}
-
-
-void M5_goto (int row, int col)
-{
- int pos;
-
- pos=row*48+col;
- if (row>3) pos-=168;
- M5_command (0x300|pos, 20);
-}
-
-
-int M5_put (int row, int col, char *text)
-{
- char *p=FrameBuffer1+row*Lcd.cols+col;
- char *t=text;
-
- while (*t && col++<=Lcd.cols) {
- *p++=*t++;
- }
- return 0;
-}
-
-
-int M5_bar (int type, int row, int col, int max, int len1, int len2)
-{
- return bar_draw (type, row, col, max, len1, len2);
-}
-
-
-int M5_icon (int num, int seq, int row, int col)
-{
- return icon_draw (num, seq, row, col);
-}
-
-
-int M5_gpo (int num, int val)
-{
- if (num>=Lcd.gpos)
- return -1;
-
- if (val) {
- GPO |= 1<<num; // set bit
- } else {
- GPO &= ~(1<<num); // clear bit
- }
- return 0;
-}
-
-
-int M5_flush (void)
-{
- int row, col, pos1, pos2;
- int c, equal;
-
- bar_process(M5_define_char);
-
- for (row=0; row<Lcd.rows; row++) {
- for (col=0; col<Lcd.cols; col++) {
- c=bar_peek(row, col);
- if (c==-1) c=icon_peek(row, col);
- if (c!=-1) {
- if (c!=32) c+=248; //blank
- FrameBuffer1[row*Lcd.cols+col]=(char)c;
- }
- }
- for (col=0; col<Lcd.cols; col++) {
- if (FrameBuffer1[row*Lcd.cols+col]==FrameBuffer2[row*Lcd.cols+col]) continue;
- M5_goto (row, col);
- for (pos1=col++, pos2=pos1, equal=0; col<Lcd.cols; col++) {
- if (FrameBuffer1[row*Lcd.cols+col]==FrameBuffer2[row*Lcd.cols+col]) {
- // If we find just one equal byte, we don't break, because this
- // would require a goto, which takes one byte, too.
- if (++equal>2) break;
- } else {
- pos2=col;
- equal=0;
- }
- }
- M5_write (FrameBuffer1+row*Lcd.cols+pos1, pos2-pos1+1);
- }
- }
-
- memcpy (FrameBuffer2, FrameBuffer1, Lcd.rows*Lcd.cols*sizeof(char));
-
- M5_setGPO(GPO);
-
- return 0;
-}
-
-
-int M5_quit (void)
-{
- info("M50530: shutting down.");
-
- if (FrameBuffer1) {
- free(FrameBuffer1);
- FrameBuffer1=NULL;
- }
-
- if (FrameBuffer2) {
- free(FrameBuffer2);
- FrameBuffer2=NULL;
- }
-
- return parport_close();
-}
-
-
-LCD M50530[] = {
- { name: "M50530",
- rows: 0,
- cols: 0,
- xres: XRES,
- yres: YRES,
- bars: BAR_L | BAR_R | BAR_U | BAR_D | BAR_H2,
- icons: 0,
- gpos: 0,
- init: M5_init,
- clear: M5_clear,
- put: M5_put,
- bar: M5_bar,
- icon: M5_icon,
- gpo: M5_gpo,
- flush: M5_flush,
- quit: M5_quit
- },
- { NULL }
-};