5873b26a82
bochs.h already not include iodev.h which reduces compilation dependences for almost all cpu and fpu files, now cpu files will not be recompiled if iodev includes was changed
213 lines
7.1 KiB
C++
213 lines
7.1 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: biosdev.cc,v 1.8 2004-06-19 15:20:10 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2002 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// Here are the virtual ports use to display messages from the bioses :
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//
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// 0x0400 : rombios Panic port with message
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// 0x0401 : rombios Panic port with line number
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// 0x0402 : rombios Info port with message
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// 0x0403 : rombios Debug port with message
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//
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// 0x0500 : vgabios Info port with message
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// 0x0501 : vgabios Panic port with message
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// 0x0502 : vgabios Panic port with line number
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// 0x0503 : vgabios Debug port with message
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// Define BX_PLUGGABLE in files that can be compiled into plugins. For
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// platforms that require a special tag on exported symbols, BX_PLUGGABLE
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// is used to know when we are exporting symbols and when we are importing.
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#define BX_PLUGGABLE
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#include "iodev.h"
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bx_biosdev_c *theBiosDevice;
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int
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libbiosdev_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[])
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{
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theBiosDevice = new bx_biosdev_c ();
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bx_devices.pluginBiosDevice = theBiosDevice;
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BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theBiosDevice, BX_PLUGIN_BIOSDEV);
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return(0); // Success
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}
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void
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libbiosdev_LTX_plugin_fini(void)
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{
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}
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logfunctions *bioslog;
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logfunctions *vgabioslog;
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bx_biosdev_c::bx_biosdev_c(void)
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{
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bioslog = new logfunctions();
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bioslog->put("BIOS");
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bioslog->settype(BIOSLOG);
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s.bios_message_i = 0;
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vgabioslog = new logfunctions();
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vgabioslog->put("VBIOS");
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vgabioslog->settype(BIOSLOG);
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s.vgabios_message_i = 0;
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}
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bx_biosdev_c::~bx_biosdev_c(void)
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{
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if ( bioslog != NULL )
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{
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delete bioslog;
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bioslog = NULL;
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}
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if ( vgabioslog != NULL )
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{
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delete vgabioslog;
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vgabioslog = NULL;
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}
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}
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void
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bx_biosdev_c::init(void)
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{
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DEV_register_iowrite_handler(this, write_handler, 0x0400, "Bios Panic Port 1", 3);
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DEV_register_iowrite_handler(this, write_handler, 0x0401, "Bios Panic Port 2", 3);
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DEV_register_iowrite_handler(this, write_handler, 0x0403, "Bios Debug Port", 1);
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DEV_register_iowrite_handler(this, write_handler, 0x0402, "Bios Info Port", 1);
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DEV_register_iowrite_handler(this, write_handler, 0x0501, "VGABios Panic Port 1", 3);
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DEV_register_iowrite_handler(this, write_handler, 0x0502, "VGABios Panic Port 2", 3);
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DEV_register_iowrite_handler(this, write_handler, 0x0503, "VGABios Debug Port", 1);
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DEV_register_iowrite_handler(this, write_handler, 0x0500, "VGABios Info Port", 1);
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}
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void
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bx_biosdev_c::reset(unsigned type)
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{
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}
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// static IO port write callback handler
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// redirects to non-static class handler to avoid virtual functions
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void
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bx_biosdev_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len)
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{
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#if !BX_USE_BIOS_SMF
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bx_biosdev_c *class_ptr = (bx_biosdev_c *) this_ptr;
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class_ptr->write(address, value, io_len);
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}
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void
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bx_biosdev_c::write(Bit32u address, Bit32u value, unsigned io_len)
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{
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#else
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UNUSED(this_ptr);
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#endif // !BX_USE_BIOS_SMF
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UNUSED(io_len);
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switch (address) {
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// 0x400-0x401 are used as panic ports for the rombios
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case 0x0401:
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if (BX_BIOS_THIS s.bios_message_i > 0) {
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// if there are bits of message in the buffer, print them as the
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// panic message. Otherwise fall into the next case.
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if (BX_BIOS_THIS s.bios_message_i >= BX_BIOS_MESSAGE_SIZE)
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BX_BIOS_THIS s.bios_message_i = BX_BIOS_MESSAGE_SIZE-1;
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BX_BIOS_THIS s.bios_message[ BX_BIOS_THIS s.bios_message_i] = 0;
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BX_BIOS_THIS s.bios_message_i = 0;
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bioslog->panic("%s", BX_BIOS_THIS s.bios_message);
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break;
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}
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case 0x0400:
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bioslog->panic("BIOS panic at rombios.c, line %d", value);
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break;
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// 0x0402 is used as the info port for the rombios
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// 0x0403 is used as the debug port for the rombios
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case 0x0402:
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case 0x0403:
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BX_BIOS_THIS s.bios_message[BX_BIOS_THIS s.bios_message_i] =
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(Bit8u) value;
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BX_BIOS_THIS s.bios_message_i ++;
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if ( BX_BIOS_THIS s.bios_message_i >= BX_BIOS_MESSAGE_SIZE ) {
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BX_BIOS_THIS s.bios_message[ BX_BIOS_MESSAGE_SIZE - 1] = 0;
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BX_BIOS_THIS s.bios_message_i = 0;
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if (address==0x403) bioslog->ldebug("%s", BX_BIOS_THIS s.bios_message);
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else bioslog->info("%s", BX_BIOS_THIS s.bios_message);
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}
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else if ((value & 0xff) == '\n') {
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BX_BIOS_THIS s.bios_message[ BX_BIOS_THIS s.bios_message_i - 1 ] = 0;
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BX_BIOS_THIS s.bios_message_i = 0;
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if (address==0x403) bioslog->ldebug("%s", BX_BIOS_THIS s.bios_message);
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else bioslog->info("%s", BX_BIOS_THIS s.bios_message);
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}
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break;
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// 0x501-0x502 are used as panic ports for the vgabios
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case 0x0502:
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if (BX_BIOS_THIS s.vgabios_message_i > 0) {
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// if there are bits of message in the buffer, print them as the
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// panic message. Otherwise fall into the next case.
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if (BX_BIOS_THIS s.vgabios_message_i >= BX_BIOS_MESSAGE_SIZE)
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BX_BIOS_THIS s.vgabios_message_i = BX_BIOS_MESSAGE_SIZE-1;
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BX_BIOS_THIS s.vgabios_message[ BX_BIOS_THIS s.vgabios_message_i] = 0;
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BX_BIOS_THIS s.vgabios_message_i = 0;
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vgabioslog->panic("%s", BX_BIOS_THIS s.vgabios_message);
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break;
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}
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case 0x0501:
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vgabioslog->panic("BIOS panic at rombios.c, line %d", value);
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break;
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// 0x0500 is used as the message port for the vgabios
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case 0x0500:
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case 0x0503:
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BX_BIOS_THIS s.vgabios_message[BX_BIOS_THIS s.vgabios_message_i] =
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(Bit8u) value;
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BX_BIOS_THIS s.vgabios_message_i ++;
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if ( BX_BIOS_THIS s.vgabios_message_i >= BX_BIOS_MESSAGE_SIZE ) {
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BX_BIOS_THIS s.vgabios_message[ BX_BIOS_MESSAGE_SIZE - 1] = 0;
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BX_BIOS_THIS s.vgabios_message_i = 0;
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if (address==0x503) vgabioslog->ldebug("%s", BX_BIOS_THIS s.vgabios_message);
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else vgabioslog->info("%s", BX_BIOS_THIS s.vgabios_message);
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}
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else if ((value & 0xff) == '\n') {
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BX_BIOS_THIS s.vgabios_message[ BX_BIOS_THIS s.vgabios_message_i - 1 ] = 0;
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BX_BIOS_THIS s.vgabios_message_i = 0;
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if (address==0x503) vgabioslog->ldebug("%s", BX_BIOS_THIS s.vgabios_message);
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else vgabioslog->info("%s", BX_BIOS_THIS s.vgabios_message);
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}
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break;
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default:
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break;
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}
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}
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