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-rw-r--r--tools/ioemu/iodev/biosdev.cc212
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diff --git a/tools/ioemu/iodev/biosdev.cc b/tools/ioemu/iodev/biosdev.cc
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+++ b/tools/ioemu/iodev/biosdev.cc
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+/////////////////////////////////////////////////////////////////////////
+// $Id: biosdev.cc,v 1.7 2003/12/08 19:36:23 danielg4 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
+
+
+// Here are the virtual ports use to display messages from the bioses :
+//
+// 0x0400 : rombios Panic port with message
+// 0x0401 : rombios Panic port with line number
+// 0x0402 : rombios Info port with message
+// 0x0403 : rombios Debug port with message
+//
+// 0x0500 : vgabios Info port with message
+// 0x0501 : vgabios Panic port with message
+// 0x0502 : vgabios Panic port with line number
+// 0x0503 : vgabios Debug port with message
+
+
+// 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"
+
+bx_biosdev_c *theBiosDevice;
+
+ int
+libbiosdev_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[])
+{
+ theBiosDevice = new bx_biosdev_c ();
+ bx_devices.pluginBiosDevice = theBiosDevice;
+ BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theBiosDevice, BX_PLUGIN_BIOSDEV);
+ return(0); // Success
+}
+
+ void
+libbiosdev_LTX_plugin_fini(void)
+{
+}
+
+logfunctions *bioslog;
+logfunctions *vgabioslog;
+
+bx_biosdev_c::bx_biosdev_c(void)
+{
+ bioslog = new logfunctions();
+ bioslog->put("BIOS");
+ bioslog->settype(BIOSLOG);
+ s.bios_message_i = 0;
+
+ vgabioslog = new logfunctions();
+ vgabioslog->put("VBIOS");
+ vgabioslog->settype(BIOSLOG);
+ s.vgabios_message_i = 0;
+}
+
+bx_biosdev_c::~bx_biosdev_c(void)
+{
+ if ( bioslog != NULL )
+ {
+ delete bioslog;
+ bioslog = NULL;
+ }
+
+ if ( vgabioslog != NULL )
+ {
+ delete vgabioslog;
+ vgabioslog = NULL;
+ }
+}
+
+ void
+bx_biosdev_c::init(void)
+{
+ DEV_register_iowrite_handler(this, write_handler, 0x0400, "Bios Panic Port 1", 3);
+ DEV_register_iowrite_handler(this, write_handler, 0x0401, "Bios Panic Port 2", 3);
+ DEV_register_iowrite_handler(this, write_handler, 0x0403, "Bios Debug Port", 1);
+ DEV_register_iowrite_handler(this, write_handler, 0x0402, "Bios Info Port", 1);
+
+ DEV_register_iowrite_handler(this, write_handler, 0x0501, "VGABios Panic Port 1", 3);
+ DEV_register_iowrite_handler(this, write_handler, 0x0502, "VGABios Panic Port 2", 3);
+ DEV_register_iowrite_handler(this, write_handler, 0x0503, "VGABios Debug Port", 1);
+ DEV_register_iowrite_handler(this, write_handler, 0x0500, "VGABios Info Port", 1);
+}
+
+ void
+bx_biosdev_c::reset(unsigned type)
+{
+}
+
+ // static IO port write callback handler
+ // redirects to non-static class handler to avoid virtual functions
+
+ void
+bx_biosdev_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len)
+{
+#if !BX_USE_BIOS_SMF
+ bx_biosdev_c *class_ptr = (bx_biosdev_c *) this_ptr;
+
+ class_ptr->write(address, value, io_len);
+}
+
+ void
+bx_biosdev_c::write(Bit32u address, Bit32u value, unsigned io_len)
+{
+#else
+ UNUSED(this_ptr);
+#endif // !BX_USE_BIOS_SMF
+ UNUSED(io_len);
+
+
+ switch (address) {
+ // 0x400-0x401 are used as panic ports for the rombios
+ case 0x0401:
+ if (BX_BIOS_THIS s.bios_message_i > 0) {
+ // if there are bits of message in the buffer, print them as the
+ // panic message. Otherwise fall into the next case.
+ if (BX_BIOS_THIS s.bios_message_i >= BX_BIOS_MESSAGE_SIZE)
+ BX_BIOS_THIS s.bios_message_i = BX_BIOS_MESSAGE_SIZE-1;
+ BX_BIOS_THIS s.bios_message[ BX_BIOS_THIS s.bios_message_i] = 0;
+ BX_BIOS_THIS s.bios_message_i = 0;
+ bioslog->panic("%s", BX_BIOS_THIS s.bios_message);
+ break;
+ }
+ case 0x0400:
+ bioslog->panic("BIOS panic at rombios.c, line %d", value);
+ break;
+
+ // 0x0402 is used as the info port for the rombios
+ // 0x0403 is used as the debug port for the rombios
+ case 0x0402:
+ case 0x0403:
+ BX_BIOS_THIS s.bios_message[BX_BIOS_THIS s.bios_message_i] =
+ (Bit8u) value;
+ BX_BIOS_THIS s.bios_message_i ++;
+ if ( BX_BIOS_THIS s.bios_message_i >= BX_BIOS_MESSAGE_SIZE ) {
+ BX_BIOS_THIS s.bios_message[ BX_BIOS_MESSAGE_SIZE - 1] = 0;
+ BX_BIOS_THIS s.bios_message_i = 0;
+ if (address==0x403) bioslog->ldebug("%s", BX_BIOS_THIS s.bios_message);
+ else bioslog->info("%s", BX_BIOS_THIS s.bios_message);
+ }
+ else if ((value & 0xff) == '\n') {
+ BX_BIOS_THIS s.bios_message[ BX_BIOS_THIS s.bios_message_i - 1 ] = 0;
+ BX_BIOS_THIS s.bios_message_i = 0;
+ if (address==0x403) bioslog->ldebug("%s", BX_BIOS_THIS s.bios_message);
+ else bioslog->info("%s", BX_BIOS_THIS s.bios_message);
+ }
+ break;
+
+ // 0x501-0x502 are used as panic ports for the vgabios
+ case 0x0502:
+ if (BX_BIOS_THIS s.vgabios_message_i > 0) {
+ // if there are bits of message in the buffer, print them as the
+ // panic message. Otherwise fall into the next case.
+ if (BX_BIOS_THIS s.vgabios_message_i >= BX_BIOS_MESSAGE_SIZE)
+ BX_BIOS_THIS s.vgabios_message_i = BX_BIOS_MESSAGE_SIZE-1;
+ BX_BIOS_THIS s.vgabios_message[ BX_BIOS_THIS s.vgabios_message_i] = 0;
+ BX_BIOS_THIS s.vgabios_message_i = 0;
+ vgabioslog->panic("%s", BX_BIOS_THIS s.vgabios_message);
+ break;
+ }
+ case 0x0501:
+ vgabioslog->panic("BIOS panic at rombios.c, line %d", value);
+ break;
+
+ // 0x0500 is used as the message port for the vgabios
+ case 0x0500:
+ case 0x0503:
+ BX_BIOS_THIS s.vgabios_message[BX_BIOS_THIS s.vgabios_message_i] =
+ (Bit8u) value;
+ BX_BIOS_THIS s.vgabios_message_i ++;
+ if ( BX_BIOS_THIS s.vgabios_message_i >= BX_BIOS_MESSAGE_SIZE ) {
+ BX_BIOS_THIS s.vgabios_message[ BX_BIOS_MESSAGE_SIZE - 1] = 0;
+ BX_BIOS_THIS s.vgabios_message_i = 0;
+ if (address==0x503) vgabioslog->ldebug("%s", BX_BIOS_THIS s.vgabios_message);
+ else vgabioslog->info("%s", BX_BIOS_THIS s.vgabios_message);
+ }
+ else if ((value & 0xff) == '\n') {
+ BX_BIOS_THIS s.vgabios_message[ BX_BIOS_THIS s.vgabios_message_i - 1 ] = 0;
+ BX_BIOS_THIS s.vgabios_message_i = 0;
+ if (address==0x503) vgabioslog->ldebug("%s", BX_BIOS_THIS s.vgabios_message);
+ else vgabioslog->info("%s", BX_BIOS_THIS s.vgabios_message);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 13:46:09 +0000