mirror of
https://github.com/netfun2000/lcd4linux.git
synced 2026-02-27 09:44:34 +08:00
[lcd4linux @ 2003-04-07 06:02:58 by reinelt]
further parallel port abstraction git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@188 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
This commit is contained in:
reinelt
@@ -1,4 +1,4 @@
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/* $Id: HD44780.c,v 1.27 2003/04/04 06:01:59 reinelt Exp $
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/* $Id: HD44780.c,v 1.28 2003/04/07 06:02:58 reinelt Exp $
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*
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* driver for display modules based on the HD44780 chip
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*
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@@ -20,6 +20,9 @@
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*
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*
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* $Log: HD44780.c,v $
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* Revision 1.28 2003/04/07 06:02:58 reinelt
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* further parallel port abstraction
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*
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* Revision 1.27 2003/04/04 06:01:59 reinelt
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* new parallel port abstraction scheme
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*
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@@ -170,9 +173,10 @@ static LCD Lcd;
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static char Txt[4][40];
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static int GPO=0;
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static unsigned char SIGNAL_RW;
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static unsigned char SIGNAL_RS;
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static unsigned char SIGNAL_ENABLE;
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static unsigned char SIGNAL_ENABLE_GPO;
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static unsigned char SIGNAL_GPO;
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static void HD_command (unsigned char cmd, int delay)
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@@ -181,8 +185,8 @@ static void HD_command (unsigned char cmd, int delay)
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// put data on DB1..DB8
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parport_data (cmd);
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// clear RS
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parport_control (SIGNAL_RS, 0);
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// clear RW and RS
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parport_control (SIGNAL_RW | SIGNAL_RS, 0);
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// Address set-up time
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ndelay(40);
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@@ -199,8 +203,8 @@ static void HD_command (unsigned char cmd, int delay)
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static void HD_write (char *string, int len, int delay)
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{
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// set RS
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parport_control (SIGNAL_RS, SIGNAL_RS);
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// clear RW, set RS
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parport_control (SIGNAL_RW | SIGNAL_RS, SIGNAL_RS);
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// Address set-up time
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ndelay(40);
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@@ -231,7 +235,7 @@ static void HD_setGPO (int bits)
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// send data
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// 74HCT573 enable pulse width = 24ns
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parport_toggle (SIGNAL_ENABLE_GPO, 1, 230);
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parport_toggle (SIGNAL_GPO, 1, 230);
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}
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}
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@@ -291,15 +295,23 @@ int HD_init (LCD *Self)
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Self->gpos=gpos;
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Lcd=*Self;
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SIGNAL_RS=parport_wire ("RS", "AUTOFD");
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SIGNAL_ENABLE=parport_wire ("ENABLE", "STROBE");
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SIGNAL_ENABLE_GPO=parport_wire ("ENABLE_GPO", "INIT");
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if ((SIGNAL_RW=parport_wire ("RW", "GND"))==0xff) return -1;
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if ((SIGNAL_RS=parport_wire ("RS", "AUTOFD"))==0xff) return -1;
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if ((SIGNAL_ENABLE=parport_wire ("ENABLE", "STROBE"))==0xff) return -1;
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if ((SIGNAL_GPO=parport_wire ("GPO", "INIT"))==0xff) return -1;
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if (parport_open() != 0) {
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error ("HD44780: could not initialize parallel port!");
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return -1;
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}
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// clear RW
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parport_control (SIGNAL_RW, 0);
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// set direction: write
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parport_direction (0);
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// initialize display
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HD_command (0x30, 4100); // 8 Bit mode, wait 4.1 ms
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HD_command (0x30, 100); // 8 Bit mode, wait 100 us
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HD_command (0x30, 4100); // 8 Bit mode, wait 4.1 ms
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@@ -1,4 +1,4 @@
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/* $Id: M50530.c,v 1.7 2003/04/04 06:01:59 reinelt Exp $
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/* $Id: M50530.c,v 1.8 2003/04/07 06:02:59 reinelt Exp $
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*
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* driver for display modules based on the M50530 chip
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*
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@@ -20,6 +20,9 @@
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*
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*
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* $Log: M50530.c,v $
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* Revision 1.8 2003/04/07 06:02:59 reinelt
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* further parallel port abstraction
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*
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* Revision 1.7 2003/04/04 06:01:59 reinelt
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* new parallel port abstraction scheme
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*
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@@ -79,7 +82,7 @@ static int GPO=0;
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static unsigned char SIGNAL_EX;
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static unsigned char SIGNAL_IOC1;
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static unsigned char SIGNAL_IOC2;
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static unsigned char SIGNAL_ENABLE_GPO;
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static unsigned char SIGNAL_GPO;
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static void M5_command (unsigned int cmd, int delay)
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{
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@@ -130,7 +133,7 @@ static void M5_setGPO (int bits)
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// send data
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// 74HCT573 enable pulse width = 24ns
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parport_toggle (SIGNAL_ENABLE_GPO, 1, 24);
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parport_toggle (SIGNAL_GPO, 1, 24);
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}
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}
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@@ -193,16 +196,20 @@ int M5_init (LCD *Self)
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Self->gpos=gpos;
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Lcd=*Self;
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SIGNAL_EX=parport_wire ("EX", "STROBE");
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SIGNAL_EX=parport_wire ("IOC1", "SELECT");
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SIGNAL_EX=parport_wire ("IOC2", "AUTOFD");
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SIGNAL_EX=parport_wire ("ENABLE_GPO", "INIT");
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if ((SIGNAL_EX=parport_wire ("EX", "STROBE"))==0xff) return -1;
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if ((SIGNAL_IOC1=parport_wire ("IOC1", "SELECT"))==0xff) return -1;
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if ((SIGNAL_IOC2=parport_wire ("IOC2", "AUTOFD"))==0xff) return -1;
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if ((SIGNAL_GPO=parport_wire ("GPO", "INIT"))==0xff) return -1;
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if (parport_open() != 0) {
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error ("M50530: could not initialize parallel port!");
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return -1;
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}
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// set direction: write
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parport_direction (0);
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// initialize display
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M5_command (0x00FA, 20); // set function mode
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M5_command (0x0020, 20); // set display mode
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M5_command (0x0050, 20); // set entry mode
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@@ -1,4 +1,4 @@
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/* $Id: T6963.c,v 1.5 2003/02/22 07:53:10 reinelt Exp $
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/* $Id: T6963.c,v 1.6 2003/04/07 06:03:00 reinelt Exp $
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*
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* driver for display modules based on the Toshiba T6963 chip
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*
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@@ -20,6 +20,9 @@
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*
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*
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* $Log: T6963.c,v $
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* Revision 1.6 2003/04/07 06:03:00 reinelt
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* further parallel port abstraction
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*
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* Revision 1.5 2003/02/22 07:53:10 reinelt
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* cfg_get(key,defval)
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*
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@@ -53,116 +56,82 @@
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#if defined (HAVE_LINUX_PARPORT_H) && defined (HAVE_LINUX_PPDEV_H)
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#define WITH_PPDEV
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#include <linux/parport.h>
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#include <linux/ppdev.h>
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#else
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#error The T6963 driver needs ppdev
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#error cannot compile T6963 driver
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#endif
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#include "debug.h"
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#include "cfg.h"
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#include "display.h"
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#include "bar.h"
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#include "parport.h"
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#include "udelay.h"
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#include "pixmap.h"
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/*
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* /CE (Chip Enable) <==> /Strobe
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* C/D (Command/Data) <==> /Select
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* /RD (Read) <==> /AutoFeed
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* /WR (Write) <==> Init
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*
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*/
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#define CE_L PARPORT_CONTROL_STROBE
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#define CE_H 0
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#define CD_L PARPORT_CONTROL_SELECT
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#define CD_H 0
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#define RD_L PARPORT_CONTROL_AUTOFD
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#define RD_H 0
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#define WR_L 0
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#define WR_H PARPORT_CONTROL_INIT
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#define XRES 6
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#define YRES 8
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static LCD Lcd;
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static char *PPdev=NULL;
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static int PPfd=-1;
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unsigned char *Buffer1, *Buffer2;
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static unsigned char SIGNAL_CE;
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static unsigned char SIGNAL_CD;
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static unsigned char SIGNAL_RD;
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static unsigned char SIGNAL_WR;
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// Fixme:
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static int bug=0;
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// perform normal status check
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void T6_status1 (void)
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{
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int direction;
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int n;
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unsigned char ctrl, data;
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// turn off data line drivers
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direction=1;
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ioctl (PPfd, PPDATADIR, &direction);
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parport_direction (1);
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// lower RD and CE
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ctrl = RD_L | WR_H | CE_L | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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ndelay(150); // Access Time: 150 ns
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// lower CE and RD
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parport_control (SIGNAL_CE | SIGNAL_RD, 0);
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// Access Time: 150 ns
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ndelay(150);
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// wait for STA0=1 and STA1=1
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n=0;
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do {
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rep_nop();
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if (++n>1000) {
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debug("hang in status1");
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bug=1;
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break;
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}
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ioctl (PPfd, PPRDATA, &data);
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} while ((data & 0x03) != 0x03);
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} while ((parport_read() & 0x03) != 0x03);
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// rise RD and CE
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ctrl = RD_H | WR_H | CE_H | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_RD | SIGNAL_CE, SIGNAL_RD | SIGNAL_CE);
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// turn on data line drivers
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direction=0;
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ioctl (PPfd, PPDATADIR, &direction);
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// Output Hold Time: 50 ns
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ndelay(50);
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// turn on data line drivers
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parport_direction (0);
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}
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// Fixme:
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static int bug=0;
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// perform status check in "auto mode"
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void T6_status2 (void)
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{
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int direction;
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int n;
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unsigned char ctrl, data;
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// turn off data line drivers
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direction=1;
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ioctl (PPfd, PPDATADIR, &direction);
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// lower RD and CE
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ctrl = RD_L | WR_H | CE_L | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_direction (1);
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ndelay(150); // Access Time: 150 ns
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// lower RD and CE
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parport_control (SIGNAL_RD | SIGNAL_CE, 0);
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// Access Time: 150 ns
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ndelay(150);
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// wait for STA3=1
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n=0;
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@@ -173,114 +142,110 @@ void T6_status2 (void)
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bug=1;
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break;
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}
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ioctl (PPfd, PPRDATA, &data);
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} while ((data & 0x08) != 0x08);
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} while ((parport_read() & 0x08) != 0x08);
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// rise RD and CE
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ctrl = RD_H | WR_H | CE_H | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_RD | SIGNAL_CE, SIGNAL_RD | SIGNAL_CE);
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// Output Hold Time: 50 ns
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ndelay(50);
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// turn on data line drivers
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direction=0;
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ioctl (PPfd, PPDATADIR, &direction);
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parport_direction (0);
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}
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static void T6_write_cmd (unsigned char cmd)
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{
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unsigned char ctrl;
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// wait until the T6963 is idle
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T6_status1();
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// put data on DB1..DB8
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ioctl(PPfd, PPWDATA, &cmd);
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// lower WR and CE
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ctrl = RD_H | WR_L | CE_L | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_data (cmd);
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ndelay(80); // Pulse width
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// lower WR and CE
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parport_control (SIGNAL_WR | SIGNAL_CE, 0);
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// Pulse width
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ndelay(80);
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// rise WR and CE
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ctrl = RD_H | WR_H | CE_H | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE);
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ndelay(40); // Data Hold Time
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// Data Hold Time
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ndelay(40);
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}
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static void T6_write_data (unsigned char data)
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{
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unsigned char ctrl;
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// wait until the T6963 is idle
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T6_status1();
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// put data on DB1..DB8
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ioctl(PPfd, PPWDATA, &data);
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parport_data (data);
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// lower C/D
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ctrl = RD_H | WR_H | CE_H | CD_L;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_CD, 0);
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ndelay(20); // C/D Setup Time
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// C/D Setup Time
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ndelay(20);
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// lower WR and CE
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ctrl = RD_H | WR_L | CE_L | CD_L;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_WR | SIGNAL_CE, 0);
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ndelay(80); // Pulse Width
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// Pulse Width
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ndelay(80);
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// rise WR and CE
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ctrl = RD_H | WR_H | CE_H | CD_L;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE);
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ndelay(40); // Data Hold Time
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// Data Hold Time
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ndelay(40);
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// rise CD
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ctrl = RD_H | WR_H | CE_H | CD_H;
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ioctl (PPfd, PPWCONTROL, &ctrl);
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parport_control (SIGNAL_CD, SIGNAL_CD);
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}
|
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static void T6_write_auto (unsigned char data)
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{
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unsigned char ctrl;
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// wait until the T6963 is idle
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T6_status2();
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// put data on DB1..DB8
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ioctl(PPfd, PPWDATA, &data);
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parport_data (data);
|
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|
||||
// lower C/D
|
||||
ctrl = RD_H | WR_H | CE_H | CD_L;
|
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ioctl (PPfd, PPWCONTROL, &ctrl);
|
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parport_control (SIGNAL_CD, 0);
|
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|
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ndelay(20); // C/D Setup Time
|
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// C/D Setup Time
|
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ndelay(20);
|
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|
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// lower WR and CE
|
||||
ctrl = RD_H | WR_L | CE_L | CD_L;
|
||||
ioctl (PPfd, PPWCONTROL, &ctrl);
|
||||
parport_control (SIGNAL_WR | SIGNAL_CE, 0);
|
||||
|
||||
ndelay(80); // Pulse Width
|
||||
// Pulse Width
|
||||
ndelay(80);
|
||||
|
||||
// rise WR and CE
|
||||
ctrl = RD_H | WR_H | CE_H | CD_L;
|
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ioctl (PPfd, PPWCONTROL, &ctrl);
|
||||
parport_control (SIGNAL_WR | SIGNAL_CE, SIGNAL_WR | SIGNAL_CE);
|
||||
|
||||
ndelay(40); // Data Hold Time
|
||||
// Data Hold Time
|
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ndelay(40);
|
||||
|
||||
// rise CD
|
||||
ctrl = RD_H | WR_H | CE_H | CD_H;
|
||||
ioctl (PPfd, PPWCONTROL, &ctrl);
|
||||
parport_control (SIGNAL_CD, SIGNAL_CD);
|
||||
}
|
||||
|
||||
|
||||
static void T6_send_byte (unsigned char cmd, unsigned char data)
|
||||
{
|
||||
T6_write_data(data);
|
||||
T6_write_cmd(cmd);
|
||||
}
|
||||
|
||||
|
||||
static void T6_send_word (unsigned char cmd, unsigned short data)
|
||||
{
|
||||
T6_write_data(data&0xff);
|
||||
@@ -288,6 +253,7 @@ static void T6_send_word (unsigned char cmd, unsigned short data)
|
||||
T6_write_cmd(cmd);
|
||||
}
|
||||
|
||||
|
||||
static void T6_memset(unsigned short addr, unsigned char data, int len)
|
||||
{
|
||||
int i;
|
||||
@@ -324,40 +290,15 @@ static void T6_memcpy(unsigned short addr, unsigned char *data, int len)
|
||||
}
|
||||
|
||||
|
||||
static int T6_open (void)
|
||||
{
|
||||
debug ("using ppdev %s", PPdev);
|
||||
PPfd=open(PPdev, O_RDWR);
|
||||
if (PPfd==-1) {
|
||||
error ("open(%s) failed: %s", PPdev, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
|
||||
#if 0
|
||||
if (ioctl(PPfd, PPEXCL)) {
|
||||
debug ("ioctl(%s, PPEXCL) failed: %s", PPdev, strerror(errno));
|
||||
} else {
|
||||
debug ("ioctl(%s, PPEXCL) succeded.");
|
||||
}
|
||||
#endif
|
||||
|
||||
if (ioctl(PPfd, PPCLAIM)) {
|
||||
error ("ioctl(%s, PPCLAIM) failed: %d %s", PPdev, errno, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int T6_clear (void)
|
||||
{
|
||||
int rows;
|
||||
|
||||
rows=(Lcd.rows>8 ? 8 : Lcd.rows);
|
||||
|
||||
|
||||
T6_memset(0x0000, 0, Lcd.cols*rows); // clear text area
|
||||
T6_memset(0x0200, 0, Lcd.cols*rows*8); // clear graphic area
|
||||
|
||||
|
||||
if (Lcd.rows>8) {
|
||||
T6_memset(0x8000, 0, Lcd.cols*(Lcd.rows-rows)); // clear text area #2
|
||||
T6_memset(0x8200, 0, Lcd.cols*(Lcd.rows-rows)*8); // clear graphic area #2
|
||||
@@ -369,23 +310,10 @@ int T6_clear (void)
|
||||
return pix_clear();
|
||||
}
|
||||
|
||||
|
||||
int T6_init (LCD *Self)
|
||||
{
|
||||
char *port;
|
||||
|
||||
Lcd=*Self;
|
||||
|
||||
if (PPdev) {
|
||||
free (PPdev);
|
||||
PPdev=NULL;
|
||||
}
|
||||
|
||||
port=cfg_get ("Port",NULL);
|
||||
if (port==NULL || *port=='\0') {
|
||||
error ("T6963: no 'Port' entry in %s", cfg_file());
|
||||
return -1;
|
||||
}
|
||||
PPdev=strdup(port);
|
||||
|
||||
if (pix_init (Lcd.rows, Lcd.cols, Lcd.xres, Lcd.yres)!=0) {
|
||||
error ("T6963: pix_init(%d, %d, %d, %d) failed", Lcd.rows, Lcd.cols, Lcd.xres, Lcd.yres);
|
||||
@@ -404,11 +332,23 @@ int T6_init (LCD *Self)
|
||||
return -1;
|
||||
}
|
||||
|
||||
udelay_init();
|
||||
if ((SIGNAL_CE=parport_wire ("CE", "STROBE"))==0xff) return -1;
|
||||
if ((SIGNAL_CD=parport_wire ("CD", "SELECT"))==0xff) return -1;
|
||||
if ((SIGNAL_RD=parport_wire ("RD", "AUTOFD"))==0xff) return -1;
|
||||
if ((SIGNAL_WR=parport_wire ("WR", "INIT"))==0xff) return -1;
|
||||
|
||||
if (T6_open()!=0)
|
||||
if (parport_open() != 0) {
|
||||
error ("HD44780: could not initialize parallel port!");
|
||||
return -1;
|
||||
}
|
||||
|
||||
// rise CE, CD, RD and WR
|
||||
parport_control (SIGNAL_CE | SIGNAL_CD | SIGNAL_RD | SIGNAL_WR,
|
||||
SIGNAL_CE | SIGNAL_CD | SIGNAL_RD | SIGNAL_WR);
|
||||
|
||||
// set direction: write
|
||||
parport_direction (0);
|
||||
|
||||
debug ("setting %d columns", Lcd.cols);
|
||||
|
||||
T6_send_word (0x40, 0x0000); // Set Text Home Address
|
||||
@@ -428,16 +368,19 @@ int T6_init (LCD *Self)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
int T6_put (int row, int col, char *text)
|
||||
{
|
||||
return pix_put(row,col,text);
|
||||
}
|
||||
|
||||
|
||||
int T6_bar (int type, int row, int col, int max, int len1, int len2)
|
||||
{
|
||||
return pix_bar(type,row,col,max,len1,len2);
|
||||
}
|
||||
|
||||
|
||||
int T6_flush (void)
|
||||
{
|
||||
int i, j, e;
|
||||
@@ -470,19 +413,13 @@ int T6_flush (void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
int T6_quit (void)
|
||||
{
|
||||
debug ("closing ppdev %s", PPdev);
|
||||
if (ioctl(PPfd, PPRELEASE)) {
|
||||
error ("ioctl(%s, PPRELEASE) failed: %s", PPdev, strerror(errno));
|
||||
}
|
||||
if (close(PPfd)==-1) {
|
||||
error ("close(%s) failed: %s", PPdev, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
return parport_close();
|
||||
}
|
||||
|
||||
|
||||
LCD T6963[] = {
|
||||
{ name: "TLC1091",
|
||||
rows: 16,
|
||||
|
||||
+5
-2
@@ -1,4 +1,4 @@
|
||||
/* $Id: lcd4linux.c,v 1.36 2003/02/22 07:53:10 reinelt Exp $
|
||||
/* $Id: lcd4linux.c,v 1.37 2003/04/07 06:03:01 reinelt Exp $
|
||||
*
|
||||
* LCD4Linux
|
||||
*
|
||||
@@ -20,6 +20,9 @@
|
||||
*
|
||||
*
|
||||
* $Log: lcd4linux.c,v $
|
||||
* Revision 1.37 2003/04/07 06:03:01 reinelt
|
||||
* further parallel port abstraction
|
||||
*
|
||||
* Revision 1.36 2003/02/22 07:53:10 reinelt
|
||||
* cfg_get(key,defval)
|
||||
*
|
||||
@@ -231,7 +234,7 @@ static void usage(void)
|
||||
int hello (void)
|
||||
{
|
||||
int i, x, y, flag;
|
||||
char *line1[] = { "* LCD4Linux V" VERSION " *",
|
||||
char *line1[] = { "* LCD4Linux " VERSION " *",
|
||||
"LCD4Linux " VERSION,
|
||||
"LCD4Linux",
|
||||
"L4Linux",
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
/* $Id: parport.c,v 1.1 2003/04/04 06:02:03 reinelt Exp $
|
||||
/* $Id: parport.c,v 1.2 2003/04/07 06:03:05 reinelt Exp $
|
||||
*
|
||||
* generic parallel port handling
|
||||
*
|
||||
@@ -20,6 +20,9 @@
|
||||
*
|
||||
*
|
||||
* $Log: parport.c,v $
|
||||
* Revision 1.2 2003/04/07 06:03:05 reinelt
|
||||
* further parallel port abstraction
|
||||
*
|
||||
* Revision 1.1 2003/04/04 06:02:03 reinelt
|
||||
* new parallel port abstraction scheme
|
||||
*
|
||||
@@ -41,6 +44,10 @@
|
||||
* reads wiring for one control signal from config
|
||||
* returns PARPORT_CONTROL_* or 255 on error
|
||||
*
|
||||
* void parport_direction (int direction)
|
||||
* 0 - write to parport
|
||||
* 1 - read from parport
|
||||
*
|
||||
* void parport_control (unsigned char mask, unsigned char value)
|
||||
* frobs control line and takes care of inverted signals
|
||||
*
|
||||
@@ -50,6 +57,11 @@
|
||||
* void parport_data (unsigned char value)
|
||||
* put data bits on DB1..DB8
|
||||
*
|
||||
* unsigned char parport_read (void)
|
||||
* reads a byte from the parallel port
|
||||
*
|
||||
* void parport_debug(void)
|
||||
* prints status of control lines
|
||||
*/
|
||||
|
||||
|
||||
@@ -108,6 +120,7 @@ static unsigned char ctr = 0xc;
|
||||
static int PPfd=-1;
|
||||
#endif
|
||||
|
||||
|
||||
int parport_open (void)
|
||||
{
|
||||
char *s, *e;
|
||||
@@ -172,9 +185,16 @@ int parport_open (void)
|
||||
|
||||
{
|
||||
debug ("using raw port 0x%x", Port);
|
||||
if (ioperm(Port, 3, 1)!=0) {
|
||||
error ("parport: ioperm(0x%x) failed: %s", Port, strerror(errno));
|
||||
return -1;
|
||||
if ((Port+3)<=0x3ff) {
|
||||
if (ioperm(Port, 3, 1)!=0) {
|
||||
error ("parport: ioperm(0x%x) failed: %s", Port, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
} else {
|
||||
if (iopl(3)!=0) {
|
||||
error ("parport: iopl(1) failed: %s", strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
@@ -197,9 +217,16 @@ int parport_close (void)
|
||||
#endif
|
||||
{
|
||||
debug ("closing raw port 0x%x", Port);
|
||||
if (ioperm(Port, 3, 0)!=0) {
|
||||
error ("parport: ioperm(0x%x) failed: %s", Port, strerror(errno));
|
||||
return -1;
|
||||
if ((Port+3)<=0x3ff) {
|
||||
if (ioperm(Port, 3, 0)!=0) {
|
||||
error ("parport: ioperm(0x%x) failed: %s", Port, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
} else {
|
||||
if (iopl(0)!=0) {
|
||||
error ("parport: iopl(0) failed: %s", strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
@@ -211,7 +238,6 @@ unsigned char parport_wire (char *name, unsigned char *deflt)
|
||||
unsigned char w;
|
||||
char wire[256];
|
||||
char *s;
|
||||
int n;
|
||||
|
||||
snprintf (wire, sizeof(wire), "Wire.%s", name);
|
||||
s=cfg_get (wire,deflt);
|
||||
@@ -223,52 +249,58 @@ unsigned char parport_wire (char *name, unsigned char *deflt)
|
||||
w=PARPORT_CONTROL_INIT;
|
||||
} else if(strcasecmp(s,"SELECT")==0) {
|
||||
w=PARPORT_CONTROL_SELECT;
|
||||
} else if(strcasecmp(s,"GND")==0) {
|
||||
w=0;
|
||||
} else {
|
||||
error ("parport: unknown signal <%s> for wire <%s>", s, name);
|
||||
error (" should be STROBE, AUTOFD, INIT or SELECT");
|
||||
return 255;
|
||||
error (" should be STROBE, AUTOFD, INIT, SELECT or GND");
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
n=0;
|
||||
if (w&PARPORT_CONTROL_STROBE) {
|
||||
n++;
|
||||
info ("wiring: [DISPLAY:%s]==[PARPORT:STROBE]", name);
|
||||
info ("wiring: [PARPORT:STROBE]==>[DISPLAY:%s]", name);
|
||||
}
|
||||
if (w&PARPORT_CONTROL_AUTOFD) {
|
||||
n++;
|
||||
info ("wiring: [DISPLAY:%s]==[PARPORT:AUTOFD]", name);
|
||||
info ("wiring: [PARPORT:AUTOFD]==>[DISPLAY:%s]", name);
|
||||
}
|
||||
if (w&PARPORT_CONTROL_INIT) {
|
||||
n++;
|
||||
info ("wiring: [DISPLAY:%s]==[PARPORT:INIT]", name);
|
||||
info ("wiring: [PARPORT:INIT]==>[DISPLAY:%s]", name);
|
||||
}
|
||||
if (w&PARPORT_CONTROL_SELECT) {
|
||||
n++;
|
||||
info ("wiring: [DISPLAY:%s]==[PARPORT:SELECT]", name);
|
||||
info ("wiring: [PARPORT:SELECT]==>[DISPLAY:%s]", name);
|
||||
}
|
||||
if (n<1) {
|
||||
error ("parport: no signal for wire <%s> found!", name);
|
||||
return 255;
|
||||
}
|
||||
if (n>1) {
|
||||
error ("parport: more than one signal for wire <%s> found!", name);
|
||||
return 255;
|
||||
if (w==0) {
|
||||
info ("wiring: [PARPORT:GND]==>[DISPLAY:%s]", name);
|
||||
}
|
||||
|
||||
return w;
|
||||
}
|
||||
|
||||
|
||||
void parport_direction (int direction)
|
||||
{
|
||||
#ifdef WITH_PPDEV
|
||||
if (PPdev) {
|
||||
ioctl (PPfd, PPDATADIR, &direction);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
// code stolen from linux/parport_pc.h
|
||||
ctr = (ctr & ~0x20) ^ (direction?0x20:0x00);
|
||||
outb (ctr, Port+2);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void parport_control (unsigned char mask, unsigned char value)
|
||||
{
|
||||
|
||||
// sanity check
|
||||
if (mask==0) {
|
||||
error ("parport: internal error: control without signal called!");
|
||||
return;
|
||||
}
|
||||
// any signal affected?
|
||||
// Note: this may happen in case a signal is hardwired to GND
|
||||
if (mask==0) return;
|
||||
|
||||
// Strobe, Select and AutoFeed are inverted!
|
||||
value ^= PARPORT_CONTROL_STROBE|PARPORT_CONTROL_SELECT|PARPORT_CONTROL_AUTOFD;
|
||||
value = mask & (value ^ (PARPORT_CONTROL_STROBE|PARPORT_CONTROL_SELECT|PARPORT_CONTROL_AUTOFD));
|
||||
// value ^= PARPORT_CONTROL_STROBE|PARPORT_CONTROL_SELECT|PARPORT_CONTROL_AUTOFD;
|
||||
|
||||
#ifdef WITH_PPDEV
|
||||
if (PPdev) {
|
||||
@@ -289,13 +321,11 @@ void parport_control (unsigned char mask, unsigned char value)
|
||||
void parport_toggle (unsigned char bit, int level, int delay)
|
||||
{
|
||||
|
||||
// sanity check
|
||||
if (bit==0) {
|
||||
error ("parport: internal error: toggle without signal called!");
|
||||
return;
|
||||
}
|
||||
// any signal affected?
|
||||
// Note: this may happen in case a signal is hardwired to GND
|
||||
if (bit==0) return;
|
||||
|
||||
// Strobe, Select and AutoFeed are inverted!
|
||||
// Strobe, Select and AutoFeed are inverted!
|
||||
if (bit & (PARPORT_CONTROL_STROBE|PARPORT_CONTROL_SELECT|PARPORT_CONTROL_AUTOFD)) {
|
||||
level=!level;
|
||||
}
|
||||
@@ -344,3 +374,32 @@ void parport_data (unsigned char data)
|
||||
}
|
||||
}
|
||||
|
||||
unsigned char parport_read (void)
|
||||
{
|
||||
unsigned char data;
|
||||
|
||||
#ifdef WITH_PPDEV
|
||||
if (PPdev) {
|
||||
ioctl (PPfd, PPRDATA, &data);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
data=inb (Port);
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
|
||||
void parport_debug(void)
|
||||
{
|
||||
unsigned char control;
|
||||
|
||||
ioctl (PPfd, PPRCONTROL, &control);
|
||||
|
||||
debug ("%cSTROBE %cAUTOFD %cINIT %cSELECT",
|
||||
control & PARPORT_CONTROL_STROBE ? '-':'+',
|
||||
control & PARPORT_CONTROL_AUTOFD ? '-':'+',
|
||||
control & PARPORT_CONTROL_INIT ? '+':'-',
|
||||
control & PARPORT_CONTROL_SELECT ? '-':'+');
|
||||
|
||||
}
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
/* $Id: parport.h,v 1.1 2003/04/04 06:02:03 reinelt Exp $
|
||||
/* $Id: parport.h,v 1.2 2003/04/07 06:03:10 reinelt Exp $
|
||||
*
|
||||
* generic parallel port handling
|
||||
*
|
||||
@@ -20,6 +20,9 @@
|
||||
*
|
||||
*
|
||||
* $Log: parport.h,v $
|
||||
* Revision 1.2 2003/04/07 06:03:10 reinelt
|
||||
* further parallel port abstraction
|
||||
*
|
||||
* Revision 1.1 2003/04/04 06:02:03 reinelt
|
||||
* new parallel port abstraction scheme
|
||||
*
|
||||
@@ -31,8 +34,11 @@
|
||||
int parport_open (void);
|
||||
int parport_close (void);
|
||||
unsigned char parport_wire (char *name, char *deflt);
|
||||
void parport_direction (int direction);
|
||||
void parport_control (unsigned char mask, unsigned char value);
|
||||
void parport_toggle (unsigned char bit, int level, int delay);
|
||||
void parport_data (unsigned char data);
|
||||
unsigned char parport_read (void);
|
||||
void parport_debug(void);
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user