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
127 lines
4.2 KiB
C++
127 lines
4.2 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
|
|
|
|
|
|
|
|
#define FROM_FLOPPY 10
|
|
#define TO_FLOPPY 11
|
|
|
|
|
|
#if BX_USE_FD_SMF
|
|
# define BX_FD_SMF static
|
|
# define BX_FD_THIS bx_floppy.
|
|
#else
|
|
# define BX_FD_SMF
|
|
# define BX_FD_THIS this->
|
|
#endif
|
|
|
|
typedef struct {
|
|
int fd; /* file descriptor of floppy image file */
|
|
unsigned sectors_per_track; /* number of sectors/track */
|
|
unsigned sectors; /* number of formatted sectors on diskette */
|
|
unsigned tracks; /* number of tracks */
|
|
unsigned heads; /* number of heads */
|
|
unsigned type;
|
|
} floppy_t;
|
|
|
|
class bx_floppy_ctrl_c : public logfunctions {
|
|
public:
|
|
|
|
bx_floppy_ctrl_c(void);
|
|
~bx_floppy_ctrl_c(void);
|
|
BX_FD_SMF void init(bx_devices_c *d, bx_cmos_c *cmos);
|
|
BX_FD_SMF void reset(unsigned source);
|
|
BX_FD_SMF void dma_write(Bit8u *data_byte);
|
|
BX_FD_SMF void dma_read(Bit8u *data_byte);
|
|
BX_FD_SMF unsigned set_media_status(unsigned drive, unsigned status);
|
|
BX_FD_SMF unsigned get_media_status(unsigned drive);
|
|
|
|
private:
|
|
|
|
struct {
|
|
Bit8u data_rate;
|
|
|
|
Bit8u command[10]; /* largest command size ??? */
|
|
Bit8u command_index;
|
|
Bit8u command_size;
|
|
Boolean command_complete;
|
|
Bit8u pending_command;
|
|
|
|
Bit8u result[10];
|
|
Bit8u result_index;
|
|
Bit8u result_size;
|
|
|
|
Bit8u DOR; // Digital Ouput Register
|
|
Bit8u TDR; // Tape Drive Register
|
|
Bit8u cylinder[4]; // really only using 2 drives
|
|
Bit8u head[4]; // really only using 2 drives
|
|
Bit8u sector[4]; // really only using 2 drives
|
|
|
|
/* MAIN STATUS REGISTER
|
|
* b7: MRQ: main request 1=data register ready 0=data register not ready
|
|
* b6: DIO: data input/output:
|
|
* 1=controller->CPU (ready for data read)
|
|
* 0=CPU->controller (ready for data write)
|
|
* b5: NDMA: non-DMA mode: 1=controller not in DMA modes
|
|
* 0=controller in DMA mode
|
|
* b4: BUSY: instruction(device busy) 1=active 0=not active
|
|
* b3-0: ACTD, ACTC, ACTB, ACTA:
|
|
* drive D,C,B,A in positioning mode 1=active 0=not active
|
|
*/
|
|
Bit8u main_status_reg;
|
|
|
|
Bit8u status_reg0;
|
|
Bit8u status_reg1;
|
|
Bit8u status_reg2;
|
|
Bit8u status_reg3;
|
|
|
|
floppy_t media[2];
|
|
unsigned num_supported_floppies;
|
|
Bit8u floppy_buffer[512+2]; // 2 extra for good measure
|
|
unsigned floppy_buffer_index;
|
|
int floppy_timer_index;
|
|
Boolean media_present[2];
|
|
Bit8u DIR; // Digital Input Register:
|
|
// b7: 0=diskette is present and has not been changed
|
|
// 1=diskette missing or changed
|
|
} s; // state information
|
|
|
|
bx_devices_c *devices;
|
|
|
|
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_FD_SMF
|
|
Bit32u read(Bit32u address, unsigned io_len);
|
|
void write(Bit32u address, Bit32u value, unsigned io_len);
|
|
#endif
|
|
BX_FD_SMF void floppy_command(void);
|
|
BX_FD_SMF void floppy_xfer(Bit8u drive, Bit32u offset, Bit8u *buffer, Bit32u bytes, Bit8u direction);
|
|
static void timer_handler(void *);
|
|
|
|
public:
|
|
BX_FD_SMF void timer(void);
|
|
BX_FD_SMF void increment_sector(void);
|
|
BX_FD_SMF Boolean evaluate_media(unsigned type, char *path, floppy_t *floppy);
|
|
};
|
|
|
|
extern bx_floppy_ctrl_c bx_floppy;
|