Bochs/bochs/iodev/pit.h
Todd T.Fries bdb89cd364 merge in BRANCH-io-cleanup.
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
2001-05-15 14:49:57 +00:00

97 lines
2.6 KiB
C++

// Copyright (C) 2001 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
#ifndef _BX_PIT_H
#define _BX_PIT_H
#if BX_USE_PIT_SMF
# define BX_PIT_SMF static
# define BX_PIT_THIS bx_pit.
#else
# define BX_PIT_SMF
# define BX_PIT_THIS this->
#endif
#ifdef OUT
# undef OUT
#endif
typedef struct {
Bit8u mode;
Bit8u latch_mode;
Bit16u input_latch_value;
Boolean input_latch_toggle;
Bit16u output_latch_value;
Boolean output_latch_toggle;
Boolean output_latch_full;
Bit16u counter_max;
Bit16u counter;
Boolean bcd_mode;
Boolean active;
Boolean GATE; // GATE input pin
Boolean OUT; // OUT output pin
} bx_pit_t;
class bx_pit_c : public logfunctions {
public:
bx_pit_c( void );
~bx_pit_c( void );
BX_PIT_SMF int init( bx_devices_c *);
BX_PIT_SMF Boolean periodic( Bit32u usec_delta );
BX_PIT_SMF int SaveState( class state_file *fd );
BX_PIT_SMF int LoadState( class state_file *fd );
private:
static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
#if !BX_USE_PIT_SMF
Bit32u read( Bit32u addr, unsigned int len );
void write( Bit32u addr, Bit32u Value, unsigned int len );
#endif
struct {
bx_pit_t timer[3];
Bit8u speaker_data_on;
Boolean refresh_clock_div2;
int timer_handle[3];
} s;
bx_devices_c *devices;
BX_PIT_SMF void write_count_reg( Bit8u value, unsigned timerid );
BX_PIT_SMF Bit8u read_counter( unsigned timerid );
BX_PIT_SMF void latch( unsigned timerid );
BX_PIT_SMF void set_GATE(unsigned pit_id, unsigned value);
BX_PIT_SMF void start(unsigned timerid);
};
extern bx_pit_c bx_pit;
#endif // #ifndef _BX_PIT_H