summaryrefslogtreecommitdiffstats
path: root/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_generic_parport.c.svn-base
diff options
context:
space:
mode:
Diffstat (limited to 'oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_generic_parport.c.svn-base')
-rw-r--r--oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_generic_parport.c.svn-base535
1 files changed, 0 insertions, 535 deletions
diff --git a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_generic_parport.c.svn-base b/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_generic_parport.c.svn-base
deleted file mode 100644
index 457a6bd3..00000000
--- a/oncology/dpfhack_display/lcd4linux/.svn/text-base/drv_generic_parport.c.svn-base
+++ /dev/null
@@ -1,535 +0,0 @@
-/* $Id$
- * $URL$
- *
- * generic driver helper for serial and parport access
- *
- * Copyright (C) 1999, 2000 Michael Reinelt <michael@reinelt.co.at>
- * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
- *
- * 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.
- *
- */
-
-#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 <time.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-
-#ifdef HAVE_SYS_IO_H
-#include <sys/io.h>
-#define WITH_OUTB
-#else
-#ifdef HAVE_ASM_IO_H
-#include <asm/io.h>
-#define WITH_OUTB
-#endif
-#endif
-
-#if defined (HAVE_LINUX_PARPORT_H) && defined (HAVE_LINUX_PPDEV_H)
-#define WITH_PPDEV
-#include <linux/parport.h>
-#include <linux/ppdev.h>
-#else
-#define PARPORT_CONTROL_STROBE 0x1
-#define PARPORT_CONTROL_AUTOFD 0x2
-#define PARPORT_CONTROL_INIT 0x4
-#define PARPORT_CONTROL_SELECT 0x8
-#define PARPORT_STATUS_ERROR 0x8
-#define PARPORT_STATUS_SELECT 0x10
-#define PARPORT_STATUS_PAPEROUT 0x20
-#define PARPORT_STATUS_ACK 0x40
-#define PARPORT_STATUS_BUSY 0x80
-#endif
-
-/* these signals are inverted by hardware on the parallel port */
-#define PARPORT_CONTROL_INVERTED (PARPORT_CONTROL_STROBE | PARPORT_CONTROL_SELECT | PARPORT_CONTROL_AUTOFD)
-
-#if !defined(WITH_OUTB) && !defined(WITH_PPDEV)
-#error neither outb() nor ppdev() possible
-#error cannot compile parallel port driver
-#endif
-
-#include "debug.h"
-#include "qprintf.h"
-#include "cfg.h"
-#include "udelay.h"
-#include "drv_generic_parport.h"
-
-
-static char *Driver = "";
-static char *Section = "";
-static unsigned short Port = 0;
-static char *PPdev = NULL;
-
-/* Any bits set here will have their logic inverted at the parallel port */
-static unsigned char inverted_control_bits = 0;
-
-/* initial value taken from linux/parport_pc.c */
-static unsigned char ctr = 0xc;
-
-#ifdef WITH_PPDEV
-static int PPfd = -1;
-#endif
-
-
-int drv_generic_parport_open(const char *section, const char *driver)
-{
- char *s, *e;
-
- Section = (char *) section;
- Driver = (char *) driver;
-
- udelay_init();
-
-#ifndef WITH_PPDEV
- error("The files include/linux/parport.h and/or include/linux/ppdev.h");
- error("were missing at compile time. Even if your system supports");
- error("ppdev, it will not be used.");
- error("You *really* should install these files and recompile LCD4linux!");
-#endif
-
- s = cfg_get(Section, "Port", NULL);
- if (s == NULL || *s == '\0') {
- error("%s: no '%s.Port' entry from %s", Driver, Section, cfg_source());
- return -1;
- }
-
- PPdev = NULL;
- if ((Port = strtol(s, &e, 0)) == 0 || *e != '\0') {
-#ifdef WITH_PPDEV
- Port = 0;
- PPdev = s;
-#else
- error("%s: bad %s.Port '%s' from %s", Driver, Section, s, cfg_source());
- free(s);
- return -1;
-#endif
- }
-#ifdef WITH_PPDEV
-
- if (PPdev) {
- info("%s: using ppdev %s", Driver, PPdev);
- PPfd = open(PPdev, O_RDWR);
- if (PPfd == -1) {
- error("%s: open(%s) failed: %s", Driver, PPdev, strerror(errno));
- return -1;
- }
-#if 0
- /* PPEXCL fails if someone else uses the port (e.g. lp.ko) */
- if (ioctl(PPfd, PPEXCL)) {
- info("%s: ioctl(%s, PPEXCL) failed: %s", PPdev, Driver, strerror(errno));
- info("%s: could not get exclusive access to %s.", Driver, PPdev);
- } else {
- info("%s: got exclusive access to %s.", Driver, PPdev);
- }
-#endif
-
- if (ioctl(PPfd, PPCLAIM)) {
- error("%s: ioctl(%s, PPCLAIM) failed: %d %s", Driver, PPdev, errno, strerror(errno));
- return -1;
- }
- } else
-#endif
-
- {
- error("using raw port 0x%x (deprecated!)", Port);
- error("You *really* should change your setup and use ppdev!");
- if ((Port + 3) <= 0x3ff) {
- if (ioperm(Port, 3, 1) != 0) {
- error("%s: ioperm(0x%x) failed: %s", Driver, Port, strerror(errno));
- return -1;
- }
- } else {
- if (iopl(3) != 0) {
- error("%s: iopl(1) failed: %s", Driver, strerror(errno));
- return -1;
- }
- }
- }
- return 0;
-}
-
-
-int drv_generic_parport_close(void)
-{
-#ifdef WITH_PPDEV
- if (PPdev) {
- debug("closing ppdev %s", PPdev);
- if (ioctl(PPfd, PPRELEASE)) {
- error("%s: ioctl(%s, PPRELEASE) failed: %s", Driver, PPdev, strerror(errno));
- }
- if (close(PPfd) == -1) {
- error("%s: close(%s) failed: %s", Driver, PPdev, strerror(errno));
- return -1;
- }
- free(PPdev);
- } else
-#endif
- {
- debug("closing raw port 0x%x", Port);
- if ((Port + 3) <= 0x3ff) {
- if (ioperm(Port, 3, 0) != 0) {
- error("%s: ioperm(0x%x) failed: %s", Driver, Port, strerror(errno));
- return -1;
- }
- } else {
- if (iopl(0) != 0) {
- error("%s: iopl(0) failed: %s", Driver, strerror(errno));
- return -1;
- }
- }
- }
-
- return 0;
-}
-
-
-static unsigned char drv_generic_parport_signal_ctrl(const char *name, const char *signal)
-{
- unsigned char wire;
- int invert = 0;
-
- /* Prefixing a signal name with '-' inverts the logic */
- if (signal[0] == '-') {
- invert = 1;
- signal++;
- }
-
- if (strcasecmp(signal, "STROBE") == 0) {
- wire = PARPORT_CONTROL_STROBE;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:STROBE (Pin 1)%s", Driver, name, invert ? " [inverted]" : "");
- } else if (strcasecmp(signal, "AUTOFD") == 0) {
- wire = PARPORT_CONTROL_AUTOFD;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:AUTOFD (Pin 14)%s", Driver, name, invert ? " [inverted]" : "");
- } else if (strcasecmp(signal, "INIT") == 0) {
- wire = PARPORT_CONTROL_INIT;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:INIT (Pin 16)%s", Driver, name, invert ? " [inverted]" : "");
- } else if (strcasecmp(signal, "SLCTIN") == 0) {
- wire = PARPORT_CONTROL_SELECT;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:SLCTIN (Pin 17)%s", Driver, name, invert ? " [inverted]" : "");
- } else if (strcasecmp(signal, "SELECT") == 0) {
- wire = PARPORT_CONTROL_SELECT;
- error("%s: SELECT is deprecated. Please use SLCTIN instead!", Driver);
- info("%s: wiring: DISPLAY:%-9s - PARPORT:SLCTIN (Pin 17)%s", Driver, name, invert ? " [inverted]" : "");
- } else if (strcasecmp(signal, "GND") == 0) {
- wire = 0;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:GND", Driver, name);
- } else {
- error("%s: unknown signal <%s> for control line <%s>", Driver, signal, name);
- error("%s: should be STROBE, AUTOFD, INIT, SLCTIN or GND", Driver);
- return 0xff;
- }
-
- if (invert) {
- inverted_control_bits |= wire;
- }
-
- return wire;
-}
-
-
-unsigned char drv_generic_parport_wire_ctrl(const char *name, const char *deflt)
-{
- unsigned char wire;
- char key[256];
- char *val;
-
- qprintf(key, sizeof(key), "Wire.%s", name);
- val = cfg_get(Section, key, deflt);
-
- wire = drv_generic_parport_signal_ctrl(name, val);
-
- free(val);
-
- return wire;
-}
-
-
-unsigned char drv_generic_parport_hardwire_ctrl(const char *name, const char *signal)
-{
- unsigned char wire;
- char key[256];
- char *val;
-
- qprintf(key, sizeof(key), "Wire.%s", name);
- val = cfg_get(Section, key, "");
-
- /* maybe warn the user */
- if (*val != '\0' && strcasecmp(signal, val) != 0) {
- error("%s: ignoring configured signal <%s> for control line <%s>", Driver, val, name);
- }
- free(val);
-
- wire = drv_generic_parport_signal_ctrl(name, signal);
-
- return wire;
-}
-
-
-static unsigned char drv_generic_parport_signal_status(const char *name, const char *signal)
-{
- unsigned char wire;
-
- if (strcasecmp(signal, "ERROR") == 0) {
- wire = PARPORT_STATUS_ERROR;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:ERROR (Pin 15)", Driver, name);
- } else if (strcasecmp(signal, "SELECT") == 0) {
- wire = PARPORT_STATUS_SELECT;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:SELECT (Pin 13)", Driver, name);
- } else if (strcasecmp(signal, "PAPEROUT") == 0) {
- wire = PARPORT_STATUS_PAPEROUT;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:PAPEROUT (Pin 12)", Driver, name);
- } else if (strcasecmp(signal, "ACK") == 0) {
- wire = PARPORT_STATUS_ACK;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:ACK (Pin 10)", Driver, name);
- } else if (strcasecmp(signal, "BUSY") == 0) {
- wire = PARPORT_STATUS_BUSY;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:BUSY (Pin 11)", Driver, name);
- } else if (strcasecmp(signal, "GND") == 0) {
- wire = 0;
- info("%s: wiring: DISPLAY:%-9s - PARPORT:GND", Driver, name);
- } else {
- error("%s: unknown signal <%s> for status line <%s>", Driver, signal, name);
- error("%s: should be ERROR, SELECT, PAPEROUT, ACK, BUSY or GND", Driver);
- return 0xff;
- }
-
- return wire;
-}
-
-
-unsigned char drv_generic_parport_wire_status(const char *name, const char *deflt)
-{
- unsigned char wire;
- char key[256];
- char *val;
-
- qprintf(key, sizeof(key), "Wire.%s", name);
- val = cfg_get(Section, key, deflt);
-
- wire = drv_generic_parport_signal_status(name, val);
-
- free(val);
-
- return wire;
-}
-
-
-unsigned char drv_generic_parport_wire_data(const char *name, const char *deflt)
-{
- unsigned char w;
- char wire[256];
- char *s;
-
- qprintf(wire, sizeof(wire), "Wire.%s", name);
- s = cfg_get(Section, wire, deflt);
- if (strlen(s) == 3 && strncasecmp(s, "DB", 2) == 0 && s[2] >= '0' && s[2] <= '7') {
- w = s[2] - '0';
- } else if (strcasecmp(s, "GND") == 0) {
- w = 0;
- } else {
- error("%s: unknown signal <%s> for data line <%s>", Driver, s, name);
- error("%s: should be DB0..7 or GND", Driver);
- return 0xff;
- }
- free(s);
- if (w == 0) {
- info("%s: wiring: DISPLAY:%-9s - PARPORT:GND", Driver, name);
- } else {
- info("%s: wiring: DISPLAY:%-9s - PARPORT:DB%d (Pin %2d)", Driver, name, w, w + 2);
- }
-
- w = 1 << w;
-
- return w;
-}
-
-
-void drv_generic_parport_direction(const 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);
- }
-}
-
-
-unsigned char drv_generic_parport_status(void)
-{
- unsigned char mask =
- PARPORT_STATUS_ERROR | PARPORT_STATUS_SELECT | PARPORT_STATUS_PAPEROUT | PARPORT_STATUS_ACK |
- PARPORT_STATUS_BUSY;
-
- unsigned char data;
-
-#ifdef WITH_PPDEV
- if (PPdev) {
- ioctl(PPfd, PPRSTATUS, &data);
- } else
-#endif
- {
- data = inb(Port + 1);
- }
-
- /* clear unused bits */
- data &= mask;
-
- return data;
-}
-
-
-void drv_generic_parport_control(const unsigned char mask, const unsigned char value)
-{
- unsigned char val;
-
- /* 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! */
- val = mask & (value ^ PARPORT_CONTROL_INVERTED ^ inverted_control_bits);
-
-#ifdef WITH_PPDEV
- if (PPdev) {
- struct ppdev_frob_struct frob;
- frob.mask = mask;
- frob.val = val;
- ioctl(PPfd, PPFCONTROL, &frob);
- } else
-#endif
- {
- /* code stolen from linux/parport_pc.h */
- ctr = (ctr & ~mask) ^ val;
- outb(ctr, Port + 2);
- }
-}
-
-
-void drv_generic_parport_toggle(const unsigned char bits, const int level, const unsigned long delay)
-{
- unsigned char value1, value2;
-
- /* any signal affected? */
- /* Note: this may happen in case a signal is hardwired to GND */
- if (bits == 0)
- return;
-
- /* prepare value */
- value1 = level ? bits : 0;
- value2 = level ? 0 : bits;
-
- /* Strobe, Select and AutoFeed are inverted! */
- value1 = bits & (value1 ^ PARPORT_CONTROL_INVERTED ^ inverted_control_bits);
- value2 = bits & (value2 ^ PARPORT_CONTROL_INVERTED ^ inverted_control_bits);
-
-#ifdef WITH_PPDEV
- if (PPdev) {
- struct ppdev_frob_struct frob;
- frob.mask = bits;
-
- /* rise */
- frob.val = value1;
- ioctl(PPfd, PPFCONTROL, &frob);
-
- /* pulse width */
- ndelay(delay);
-
- /* lower */
- frob.val = value2;
- ioctl(PPfd, PPFCONTROL, &frob);
-
- } else
-#endif
- {
- /* rise */
- ctr = (ctr & ~bits) ^ value1;
- outb(ctr, Port + 2);
-
- /* pulse width */
- ndelay(delay);
-
- /* lower */
- ctr = (ctr & ~bits) ^ value2;
- outb(ctr, Port + 2);
- }
-}
-
-
-void drv_generic_parport_data(const unsigned char data)
-{
-#ifdef WITH_PPDEV
- if (PPdev) {
- ioctl(PPfd, PPWDATA, &data);
- } else
-#endif
- {
- outb(data, Port);
- }
-}
-
-unsigned char drv_generic_parport_read(void)
-{
- unsigned char data;
-
-#ifdef WITH_PPDEV
- if (PPdev) {
- ioctl(PPfd, PPRDATA, &data);
- } else
-#endif
- {
- data = inb(Port);
- }
- return data;
-}
-
-
-void drv_generic_parport_debug(void)
-{
- unsigned char control;
-
-#ifdef WITH_PPDEV
- if (PPdev) {
- ioctl(PPfd, PPRCONTROL, &control);
- } else
-#endif
- {
- control = ctr;
- }
-
- debug("%cSTROBE %cAUTOFD %cINIT %cSLCTIN",
- control & PARPORT_CONTROL_STROBE ? '-' : '+',
- control & PARPORT_CONTROL_AUTOFD ? '-' : '+', control & PARPORT_CONTROL_INIT ? '+' : '-',
- control & PARPORT_CONTROL_SELECT ? '-' : '+');
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-17 01:53:25 +0000