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diff --git a/tools/ioemu/iodev/parallel.cc b/tools/ioemu/iodev/parallel.cc
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+/////////////////////////////////////////////////////////////////////////
+// $Id: parallel.cc,v 1.24 2003/10/29 17:29:26 vruppert Exp $
+/////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2002 MandrakeSoft S.A.
+//
+// MandrakeSoft S.A.
+// 43, rue d'Aboukir
+// 75002 Paris - France
+// http://www.linux-mandrake.com/
+// http://www.mandrakesoft.com/
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+////////////////////////////////////////////////////////
+// This code was just a few stubs until Volker.Ruppert@t-online.de
+// fixed it up in November 2001.
+
+
+// Define BX_PLUGGABLE in files that can be compiled into plugins. For
+// platforms that require a special tag on exported symbols, BX_PLUGGABLE
+// is used to know when we are exporting symbols and when we are importing.
+#define BX_PLUGGABLE
+
+#include "bochs.h"
+#define LOG_THIS theParallelDevice->
+
+bx_parallel_c *theParallelDevice = NULL;
+
+ int
+libparallel_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[])
+{
+ theParallelDevice = new bx_parallel_c ();
+ bx_devices.pluginParallelDevice = theParallelDevice;
+ BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theParallelDevice, BX_PLUGIN_PARALLEL);
+ return(0); // Success
+}
+
+ void
+libparallel_LTX_plugin_fini(void)
+{
+}
+
+bx_parallel_c::bx_parallel_c(void)
+{
+ put("PAR");
+ settype(PARLOG);
+ s.output = NULL;
+}
+
+bx_parallel_c::~bx_parallel_c(void)
+{
+ if (s.output != NULL)
+ fclose(s.output);
+}
+
+ void
+bx_parallel_c::init(void)
+{
+ BX_DEBUG(("Init $Id: parallel.cc,v 1.24 2003/10/29 17:29:26 vruppert Exp $"));
+
+ if (bx_options.par[0].Oenabled->get ()) {
+
+ /* PARALLEL PORT 1 */
+
+ DEV_register_irq(7, "Parallel Port 1");
+ BX_INFO (("parallel port 1 at 0x378 irq 7"));
+ for (unsigned addr=0x0378; addr<=0x037A; addr++) {
+ DEV_register_ioread_handler(this, read_handler, addr, "Parallel Port 1", 1);
+ }
+ DEV_register_iowrite_handler(this, write_handler, 0x0378, "Parallel Port 1", 1);
+ DEV_register_iowrite_handler(this, write_handler, 0x037A, "Parallel Port 1", 1);
+
+ BX_PAR_THIS s.STATUS.error = 1;
+ BX_PAR_THIS s.STATUS.slct = 1;
+ BX_PAR_THIS s.STATUS.pe = 0;
+ BX_PAR_THIS s.STATUS.ack = 1;
+ BX_PAR_THIS s.STATUS.busy = 1;
+
+ BX_PAR_THIS s.CONTROL.strobe = 0;
+ BX_PAR_THIS s.CONTROL.autofeed = 0;
+ BX_PAR_THIS s.CONTROL.init = 1;
+ BX_PAR_THIS s.CONTROL.slct_in = 1;
+ BX_PAR_THIS s.CONTROL.irq = 0;
+ BX_PAR_THIS s.CONTROL.input = 0;
+
+ BX_PAR_THIS s.initmode = 0;
+
+ if (strlen(bx_options.par[0].Ooutfile->getptr ()) > 0) {
+ s.output = fopen(bx_options.par[0].Ooutfile->getptr (), "wb");
+ if (!s.output)
+ BX_PANIC (("Could not open '%s' to write parport1 output",
+ bx_options.par[0].Ooutfile->getptr ()));
+ }
+ }
+}
+
+ void
+bx_parallel_c::reset(unsigned type)
+{
+}
+
+ void
+bx_parallel_c::virtual_printer(void)
+{
+ if (BX_PAR_THIS s.STATUS.slct) {
+ if (BX_PAR_THIS s.output != NULL) {
+ fputc(BX_PAR_THIS s.data, BX_PAR_THIS s.output);
+ fflush (BX_PAR_THIS s.output);
+ }
+ if (BX_PAR_THIS s.CONTROL.irq == 1) {
+ DEV_pic_raise_irq(7);
+ }
+ BX_PAR_THIS s.STATUS.ack = 0;
+ BX_PAR_THIS s.STATUS.busy = 1;
+ }
+ else {
+ BX_ERROR(("data is valid, but printer is offline"));
+ }
+}
+
+ // static IO port read callback handler
+ // redirects to non-static class handler to avoid virtual functions
+
+ Bit32u
+bx_parallel_c::read_handler(void *this_ptr, Bit32u address, unsigned io_len)
+{
+#if !BX_USE_PAR_SMF
+ bx_parallel_c *class_ptr = (bx_parallel_c *) this_ptr;
+
+ return( class_ptr->read(address, io_len) );
+}
+
+
+ Bit32u
+bx_parallel_c::read(Bit32u address, unsigned io_len)
+{
+#else
+ UNUSED(this_ptr);
+#endif // !BX_USE_PAR_SMF
+
+ Bit32u retval;
+
+ switch (address) {
+ /* PARALLEL PORT 1 */
+ case 0x0378:
+ if (!BX_PAR_THIS s.CONTROL.input) {
+ return (Bit32u)BX_PAR_THIS s.data;
+ } else {
+ BX_ERROR(("read: input mode not supported"));
+ return (0xFF);
+ }
+ break;
+ case 0x0379:
+ {
+ retval = ((BX_PAR_THIS s.STATUS.busy << 7) |
+ (BX_PAR_THIS s.STATUS.ack << 6) |
+ (BX_PAR_THIS s.STATUS.pe << 5) |
+ (BX_PAR_THIS s.STATUS.slct << 4) |
+ (BX_PAR_THIS s.STATUS.error << 3));
+ if (BX_PAR_THIS s.STATUS.ack == 0) {
+ BX_PAR_THIS s.STATUS.ack = 1;
+ if (BX_PAR_THIS s.CONTROL.irq == 1) {
+ DEV_pic_lower_irq(7);
+ }
+ }
+ if (BX_PAR_THIS s.initmode == 1) {
+ BX_PAR_THIS s.STATUS.busy = 1;
+ BX_PAR_THIS s.STATUS.slct = 1;
+ BX_PAR_THIS s.STATUS.ack = 0;
+ if (BX_PAR_THIS s.CONTROL.irq == 1) {
+ DEV_pic_raise_irq(7);
+ }
+ BX_PAR_THIS s.initmode = 0;
+ }
+ BX_DEBUG(("read: status register returns 0x%02x", retval));
+ return retval;
+ }
+ break;
+ case 0x037A:
+ {
+ retval = ((BX_PAR_THIS s.CONTROL.input << 5) |
+ (BX_PAR_THIS s.CONTROL.irq << 4) |
+ (BX_PAR_THIS s.CONTROL.slct_in << 3) |
+ (BX_PAR_THIS s.CONTROL.init << 2) |
+ (BX_PAR_THIS s.CONTROL.autofeed << 1) |
+ (BX_PAR_THIS s.CONTROL.strobe));
+ BX_DEBUG(("read: control register returns 0x%02x", retval));
+ return retval;
+ }
+ break;
+ }
+ return(0);
+}
+
+
+ // static IO port write callback handler
+ // redirects to non-static class handler to avoid virtual functions
+
+ void
+bx_parallel_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len)
+{
+#if !BX_USE_PAR_SMF
+ bx_parallel_c *class_ptr = (bx_parallel_c *) this_ptr;
+
+ class_ptr->write(address, value, io_len);
+}
+
+ void
+bx_parallel_c::write(Bit32u address, Bit32u value, unsigned io_len)
+{
+#else
+ UNUSED(this_ptr);
+#endif // !BX_USE_PAR_SMF
+
+ switch (address) {
+ /* PARALLEL PORT 1 */
+ case 0x0378:
+ BX_PAR_THIS s.data = (Bit8u)value;
+ BX_DEBUG(("write: data output register = 0x%02x", (Bit8u)value));
+ break;
+ case 0x037A:
+ {
+ if ((value & 0x01) == 0x01) {
+ if (BX_PAR_THIS s.CONTROL.strobe == 0) {
+ BX_PAR_THIS s.CONTROL.strobe = 1;
+ virtual_printer(); // data is valid now
+ }
+ } else {
+ if (BX_PAR_THIS s.CONTROL.strobe == 1) {
+ BX_PAR_THIS s.CONTROL.strobe = 0;
+ }
+ }
+ BX_PAR_THIS s.CONTROL.autofeed = ((value & 0x02) == 0x02);
+ if ((value & 0x04) == 0x04) {
+ if (BX_PAR_THIS s.CONTROL.init == 0) {
+ BX_PAR_THIS s.CONTROL.init = 1;
+ BX_PAR_THIS s.STATUS.busy = 0;
+ BX_PAR_THIS s.STATUS.slct = 0;
+ BX_PAR_THIS s.initmode = 1;
+ BX_DEBUG(("printer init requested"));
+ }
+ } else {
+ if (BX_PAR_THIS s.CONTROL.init == 1) {
+ BX_PAR_THIS s.CONTROL.init = 0;
+ }
+ }
+ if ((value & 0x08) == 0x08) {
+ if (BX_PAR_THIS s.CONTROL.slct_in == 0) {
+ BX_PAR_THIS s.CONTROL.slct_in = 1;
+ BX_DEBUG(("printer now online"));
+ }
+ } else {
+ if (BX_PAR_THIS s.CONTROL.slct_in == 1) {
+ BX_PAR_THIS s.CONTROL.slct_in = 0;
+ BX_DEBUG(("printer now offline"));
+ }
+ }
+ BX_PAR_THIS s.STATUS.slct = BX_PAR_THIS s.CONTROL.slct_in;
+ if ((value & 0x10) == 0x10) {
+ if (BX_PAR_THIS s.CONTROL.irq == 0) {
+ BX_PAR_THIS s.CONTROL.irq = 1;
+ BX_DEBUG(("irq mode selected"));
+ }
+ } else {
+ if (BX_PAR_THIS s.CONTROL.irq == 1) {
+ BX_PAR_THIS s.CONTROL.irq = 0;
+ BX_DEBUG(("polling mode selected"));
+ }
+ }
+ if ((value & 0x20) == 0x20) {
+ if (BX_PAR_THIS s.CONTROL.input == 0) {
+ BX_PAR_THIS s.CONTROL.input = 1;
+ BX_DEBUG(("data input mode selected"));
+ }
+ } else {
+ if (BX_PAR_THIS s.CONTROL.input == 1) {
+ BX_PAR_THIS s.CONTROL.input = 0;
+ BX_DEBUG(("data output mode selected"));
+ }
+ }
+ if ((value & 0xC0) > 0) {
+ BX_ERROR(("write: unsupported control bit ignored"));
+ }
+ }
+ break;
+ }
+}
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