bdb89cd364
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
144 lines
3.7 KiB
C++
144 lines
3.7 KiB
C++
// Copyright (C) 2001 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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#define LOG_THIS bx_g2h.
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bx_g2h_c bx_g2h;
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bx_g2h_c::bx_g2h_c(void)
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{
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setprefix("[G2H ]");
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settype(G2HLOG);
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unsigned i;
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for (i=0; i<BX_MAX_G2H_CHANNELS; i++) {
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s.callback[i].f = NULL;
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s.callback[i].used = 0;
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}
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BX_DEBUG(("Init.\n"));
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}
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bx_g2h_c::~bx_g2h_c(void)
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{
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// nothing for now
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BX_DEBUG(("Exit.\n"));
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}
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void
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bx_g2h_c::init(bx_devices_c *d)
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{
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// Reserve a dword port for this interface
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for (Bit32u addr=BX_G2H_PORT; addr<=(BX_G2H_PORT+3); addr++) {
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d->register_io_read_handler(&bx_g2h,
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inp_handler, addr, "g2h");
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d->register_io_write_handler(&bx_g2h,
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outp_handler, addr, "g2h");
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}
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memset(&bx_g2h.s, 0, sizeof(bx_g2h.s));
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}
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unsigned
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bx_g2h_c::aquire_channel(bx_g2h_callback_t f)
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{
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unsigned i;
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for (i=0; i<BX_MAX_G2H_CHANNELS; i++) {
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if (bx_g2h.s.callback[i].used==0) {
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bx_g2h.s.callback[i].f = f;
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bx_g2h.s.callback[i].used = 1;
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return(i);
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}
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}
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BX_INFO(("g2h: attempt to aquire channel: maxed out\n");
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return(BX_G2H_ERROR); // No more free channels
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}
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unsigned
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bx_g2h_c::deaquire_channel(unsigned channel)
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{
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if ( (channel >= BX_MAX_G2H_CHANNELS) ||
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(bx_g2h.s.callback[channel].used==0) ) {
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BX_PANIC(("g2h: attempt to deaquire channel %u: not aquired\n",
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channel));
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}
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bx_g2h.s.callback[channel].used = 0;
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bx_g2h.s.callback[channel].f = NULL;
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return(0);
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}
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// static IO port read callback handler
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// redirects to non-static class handler to avoid virtual functions
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Bit32u
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bx_g2h_c::inp_handler(void *this_ptr, Bit32u addr, unsigned io_len)
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{
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UNUSED(this_ptr);
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if (addr != BX_G2H_PORT)
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BX_PANIC(("g2h: IO read not aligned on dword boundary.\n"));
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if (io_len != 4)
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BX_PANIC(("g2h: IO read not dword.\n"));
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BX_PANIC(("g2h: IO read not complete.\n"));
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return(0);
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}
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void
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bx_g2h_c::outp_handler(void *this_ptr, Bit32u addr,
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Bit32u val32, unsigned io_len)
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{
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UNUSED(this_ptr);
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if (addr != BX_G2H_PORT)
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BX_PANIC(("g2h: IO write not aligned on dword boundary.\n"));
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if (io_len != 4)
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BX_PANIC(("g2h: IO write not dword.\n"));
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if ( (bx_g2h.s.packet_count==0) && (val32!=BX_G2H_MAGIC) ) {
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BX_INFO(("g2h: IO W: Not magic header.\n");
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return;
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}
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bx_g2h.s.guest_packet[bx_g2h.s.packet_count++] = val32;
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if (bx_g2h.s.packet_count >= BX_G2H_PACKET_SIZE) {
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unsigned channel;
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// Full packet received from guest. Pass on to the host code.
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channel = bx_g2h.s.guest_packet[1];
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if (channel >= BX_MAX_G2H_CHANNELS) {
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BX_PANIC(("g2h: channel (%u) out of bounds\n", channel));
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}
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if (bx_g2h.s.callback[channel].used==0) {
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BX_PANIC(("g2h: channel (%u) not active\n", channel));
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}
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bx_g2h.s.callback[channel].f(&bx_g2h.s.guest_packet);
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bx_g2h.s.packet_count = 0; // Ready for next packet
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}
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}
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