d1ef29dc6e
. ports 0x0400 0x0401 and 0xfff0 : rombios . ports 0x0500 0x0501 and 0x0502 : vgabios The rombios log output was previously handled by the unmmapped device
183 lines
5.9 KiB
C++
183 lines
5.9 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: biosdev.cc,v 1.1 2002-04-01 21:53:23 cbothamy 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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#include "bochs.h"
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bx_biosdev_c bx_biosdev;
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#if BX_USE_BIOS_SMF
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#define this (&bx_biosdev)
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#endif
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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(bx_devices_c *d)
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{
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BX_BIOS_THIS devices = d;
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BX_BIOS_THIS devices->register_io_write_handler(this, write_handler,
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0x0400, "Bios Panic Port 1");
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BX_BIOS_THIS devices->register_io_write_handler(this, write_handler,
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0x0401, "Bios Panic Port 2");
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BX_BIOS_THIS devices->register_io_write_handler(this, write_handler,
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0xfff0, "Bios Info Port");
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BX_BIOS_THIS devices->register_io_write_handler(this, write_handler,
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0x0501, "VGABios Panic Port 1");
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BX_BIOS_THIS devices->register_io_write_handler(this, write_handler,
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0x0502, "VGABios Panic Port 2");
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BX_BIOS_THIS devices->register_io_write_handler(this, write_handler,
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0x0500, "VGABios Info Port");
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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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// 0xfff0 is used as the message port for the rombios
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case 0xfff0:
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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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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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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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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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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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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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