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Moved I/O port handling to dlls/winedos.

This commit is contained in:
Alexandre Julliard 2003-09-17 22:45:46 +00:00
parent 10aacbf3ef
commit 9eb1d2c7fa
12 changed files with 512 additions and 608 deletions
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8
dlls/kernel/instr.c
View File

@ -337,7 +337,10 @@ static BOOL INSTR_EmulateLDS( CONTEXT86 *context, BYTE *instr, int long_op,
*/
static DWORD INSTR_inport( WORD port, int size, CONTEXT86 *context )
{
DWORD res = IO_inport( port, size );
DWORD res = ~0U;
if (Dosvm.inport || DPMI_LoadDosSystem()) res = Dosvm.inport( port, size );
if (TRACE_ON(io))
{
switch(size)
@ -367,7 +370,8 @@ static DWORD INSTR_inport( WORD port, int size, CONTEXT86 *context )
*/
static void INSTR_outport( WORD port, int size, DWORD val, CONTEXT86 *context )
{
IO_outport( port, size, val );
if (Dosvm.outport || DPMI_LoadDosSystem()) Dosvm.outport( port, size, val );
if (TRACE_ON(io))
{
switch(size)

2
dlls/ntdll/Makefile.in
View File

@ -31,8 +31,6 @@ C_SRCS = \
$(TOPOBJDIR)/msdos/dosmem.c \
$(TOPOBJDIR)/msdos/dpmi.c \
$(TOPOBJDIR)/msdos/int21.c \
$(TOPOBJDIR)/msdos/ioports.c \
$(TOPOBJDIR)/msdos/ppdev.c \
$(TOPOBJDIR)/relay32/builtin32.c \
$(TOPOBJDIR)/relay32/relay386.c \
$(TOPOBJDIR)/relay32/snoop.c \

1
dlls/winedos/Makefile.in
View File

@ -46,6 +46,7 @@ C_SRCS = \
interrupts.c \
ioports.c \
module.c \
ppdev.c \
relay.c \
soundblaster.c \
timer.c \

5
dlls/winedos/dosexe.h
View File

@ -271,6 +271,11 @@ void DOSVM_BuildCallFrame( CONTEXT86 *, DOSRELAY, LPVOID );
extern void SB_ioport_out( WORD port, BYTE val );
extern BYTE SB_ioport_in( WORD port );
/* ppdev.c */
extern BOOL IO_pp_outp(int port, DWORD* res);
extern int IO_pp_inp(int port, DWORD* res);
extern char IO_pp_init(void);
/* timer.c */
extern void WINAPI DOSVM_Int08Handler(CONTEXT86*);

508
dlls/winedos/ioports.c
View File

@ -19,32 +19,398 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Known problems:
- only a few ports are emulated.
- real-time clock in "cmos" is bogus. A nifty alarm() setup could
fix that, I guess.
*/
#include "config.h"
#include <stdarg.h>
#include <stdlib.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "winternl.h"
#include "dosexe.h"
#include "vga.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(int);
/**********************************************************************
* DOSVM_inport
#if defined(linux) && defined(__i386__)
# define DIRECT_IO_ACCESS
#else
# undef DIRECT_IO_ACCESS
#endif /* linux && __i386__ */
static struct {
WORD countmax;
BOOL16 byte_toggle; /* if TRUE, then hi byte has already been written */
WORD latch;
BOOL16 latched;
BYTE ctrlbyte_ch;
WORD oldval;
} tmr_8253[3] = {
{0xFFFF, FALSE, 0, FALSE, 0x36, 0},
{0x0012, FALSE, 0, FALSE, 0x74, 0},
{0x0001, FALSE, 0, FALSE, 0xB6, 0},
};
static int dummy_ctr = 0;
static BYTE parport_8255[4] = {0x4f, 0x20, 0xff, 0xff};
static BYTE cmosaddress;
/* if you change anything here, use IO_FixCMOSCheckSum below to compute
* the checksum and put the right values in.
*/
BOOL WINAPI DOSVM_inport( int port, int size, DWORD *res )
static BYTE cmosimage[64] =
{
0x27, 0x34, 0x31, 0x47, 0x16, 0x15, 0x00, 0x01,
0x04, 0x94, 0x26, 0x02, 0x50, 0x80, 0x00, 0x00,
0x40, 0xb1, 0x00, 0x9c, 0x01, 0x80, 0x02, 0x00,
0x1c, 0x00, 0x00, 0xad, 0x02, 0x10, 0x00, 0x00,
0x08, 0x00, 0x00, 0x26, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x03, 0x19, /* last 2 bytes are checksum */
0x00, 0x1c, 0x19, 0x81, 0x00, 0x0e, 0x00, 0x80,
0x1b, 0x7b, 0x21, 0x00, 0x00, 0x00, 0x05, 0x5f
};
#if 0
static void IO_FixCMOSCheckSum(void)
{
WORD sum = 0;
int i;
for (i=0x10; i < 0x2d; i++)
sum += cmosimage[i];
cmosimage[0x2e] = sum >> 8; /* yes, this IS hi byte !! */
cmosimage[0x2f] = sum & 0xff;
MESSAGE("calculated hi %02x, lo %02x\n", cmosimage[0x2e], cmosimage[0x2f]);
}
#endif
#ifdef DIRECT_IO_ACCESS
extern int iopl(int level);
static char do_direct_port_access = -1;
static char port_permissions[0x10000];
#define IO_READ 1
#define IO_WRITE 2
#endif /* DIRECT_IO_ACCESS */
#ifdef HAVE_PPDEV
static int do_pp_port_access = -1; /* -1: uninitialized, 1: not available
0: available);*/
#endif
static void set_timer_maxval(unsigned timer, unsigned maxval)
{
switch (timer) {
case 0: /* System timer counter divisor */
DOSVM_SetTimer(maxval);
break;
case 1: /* RAM refresh */
FIXME("RAM refresh counter handling not implemented !\n");
break;
case 2: /* cassette & speaker */
/* speaker on ? */
if ((parport_8255[1] & 3) == 3)
{
TRACE("Beep (freq: %d) !\n", 1193180 / maxval );
Beep(1193180 / maxval, 20);
}
break;
}
}
/**********************************************************************
* IO_port_init
*/
/* set_IO_permissions(int val1, int val)
* Helper function for IO_port_init
*/
#ifdef DIRECT_IO_ACCESS
static void set_IO_permissions(int val1, int val, char rw)
{
int j;
if (val1 != -1) {
if (val == -1) val = 0x3ff;
for (j = val1; j <= val; j++)
port_permissions[j] |= rw;
do_direct_port_access = 1;
val1 = -1;
} else if (val != -1) {
do_direct_port_access = 1;
port_permissions[val] |= rw;
}
}
/* do_IO_port_init_read_or_write(char* temp, char rw)
* Helper function for IO_port_init
*/
static void do_IO_port_init_read_or_write(const WCHAR *str, char rw)
{
int val, val1, i;
WCHAR *end;
static const WCHAR allW[] = {'a','l','l',0};
if (!strcmpiW(str, allW))
{
for (i=0; i < sizeof(port_permissions); i++)
port_permissions[i] |= rw;
}
else
{
val = -1;
val1 = -1;
while (*str)
{
switch(*str)
{
case ',':
case ' ':
case '\t':
set_IO_permissions(val1, val, rw);
val1 = -1;
val = -1;
str++;
break;
case '-':
val1 = val;
if (val1 == -1) val1 = 0;
str++;
break;
default:
if (isdigitW(*str))
{
val = strtoulW( str, &end, 0 );
if (end == str)
{
val = -1;
str++;
}
else str = end;
}
break;
}
}
set_IO_permissions(val1, val, rw);
}
}
static inline BYTE inb( WORD port )
{
BYTE b;
__asm__ __volatile__( "inb %w1,%0" : "=a" (b) : "d" (port) );
return b;
}
static inline WORD inw( WORD port )
{
WORD w;
__asm__ __volatile__( "inw %w1,%0" : "=a" (w) : "d" (port) );
return w;
}
static inline DWORD inl( WORD port )
{
DWORD dw;
__asm__ __volatile__( "inl %w1,%0" : "=a" (dw) : "d" (port) );
return dw;
}
static inline void outb( BYTE value, WORD port )
{
__asm__ __volatile__( "outb %b0,%w1" : : "a" (value), "d" (port) );
}
static inline void outw( WORD value, WORD port )
{
__asm__ __volatile__( "outw %w0,%w1" : : "a" (value), "d" (port) );
}
static inline void outl( DWORD value, WORD port )
{
__asm__ __volatile__( "outl %0,%w1" : : "a" (value), "d" (port) );
}
static void IO_port_init(void)
{
char tmp[1024];
HKEY hkey;
DWORD dummy;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
static const WCHAR portsW[] = {'M','a','c','h','i','n','e','\\',
'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','W','i','n','e','\\',
'C','o','n','f','i','g','\\','P','o','r','t','s',0};
static const WCHAR readW[] = {'r','e','a','d',0};
static const WCHAR writeW[] = {'w','r','i','t','e',0};
do_direct_port_access = 0;
/* Can we do that? */
if (!iopl(3))
{
iopl(0);
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, portsW );
if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
{
RtlInitUnicodeString( &nameW, readW );
if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
{
WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
do_IO_port_init_read_or_write(str, IO_READ);
}
RtlInitUnicodeString( &nameW, writeW );
if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
{
WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
do_IO_port_init_read_or_write(str, IO_WRITE);
}
NtClose( hkey );
}
}
}
#endif /* DIRECT_IO_ACCESS */
/**********************************************************************
* inport (WINEDOS.@)
*
* Note: The size argument has to be handled correctly _externally_
* (as we always return a DWORD)
*/
DWORD WINAPI DOSVM_inport( int port, int size )
{
DWORD res = ~0U;
TRACE("%d-byte value from port 0x%04x\n", size, port );
#ifdef HAVE_PPDEV
if (do_pp_port_access == -1) do_pp_port_access =IO_pp_init();
if ((do_pp_port_access == 0 ) && (size == 1))
{
if (!IO_pp_inp(port,&res)) return res;
}
#endif
#ifdef DIRECT_IO_ACCESS
if (do_direct_port_access == -1) IO_port_init();
if ((do_direct_port_access)
/* Make sure we have access to the port */
&& (port_permissions[port] & IO_READ))
{
iopl(3);
switch(size)
{
case 1: res = inb( port ); break;
case 2: res = inw( port ); break;
case 4: res = inl( port ); break;
}
iopl(0);
return res;
}
#endif
switch (port)
{
case 0x40:
case 0x41:
case 0x42:
{
BYTE chan = port & 3;
WORD tempval = 0;
if (tmr_8253[chan].latched)
tempval = tmr_8253[chan].latch;
else
{
dummy_ctr -= 1 + (int)(10.0 * rand() / (RAND_MAX + 1.0));
if (chan == 0) /* System timer counter divisor */
{
/* FIXME: DOSVM_GetTimer() returns quite rigid values */
tempval = dummy_ctr + (WORD)DOSVM_GetTimer();
}
else
{
/* FIXME: intelligent hardware timer emulation needed */
tempval = dummy_ctr;
}
}
switch ((tmr_8253[chan].ctrlbyte_ch & 0x30) >> 4)
{
case 0:
res = 0; /* shouldn't happen? */
break;
case 1: /* read lo byte */
res = (BYTE)tempval;
tmr_8253[chan].latched = FALSE;
break;
case 3: /* read lo byte, then hi byte */
tmr_8253[chan].byte_toggle ^= 1; /* toggle */
if (tmr_8253[chan].byte_toggle)
{
res = (BYTE)tempval;
break;
}
/* else [fall through if read hi byte !] */
case 2: /* read hi byte */
res = (BYTE)(tempval >> 8);
tmr_8253[chan].latched = FALSE;
break;
}
}
break;
case 0x60:
*res = DOSVM_Int09ReadScan(NULL);
res = DOSVM_Int09ReadScan(NULL);
break;
case 0x61:
res = (DWORD)parport_8255[1];
break;
case 0x62:
res = (DWORD)parport_8255[2];
break;
case 0x70:
res = (DWORD)cmosaddress;
break;
case 0x71:
res = (DWORD)cmosimage[cmosaddress & 0x3f];
break;
case 0x200:
case 0x201:
res = ~0U; /* no joystick */
break;
case 0x22a:
case 0x22c:
case 0x22e:
*res = (DWORD)SB_ioport_in( port );
res = (DWORD)SB_ioport_in( port );
break;
case 0x3ba:
case 0x3c0:
@ -81,7 +447,7 @@ BOOL WINAPI DOSVM_inport( int port, int size, DWORD *res )
case 0x3df:
if(size > 1)
FIXME("Trying to read more than one byte from VGA!\n");
*res = (DWORD)VGA_ioport_in( port );
res = (DWORD)VGA_ioport_in( port );
break;
case 0x00:
case 0x01:
@ -117,25 +483,141 @@ BOOL WINAPI DOSVM_inport( int port, int size, DWORD *res )
case 0xD0:
case 0x0D:
case 0xDA:
*res = (DWORD)DMA_ioport_in( port );
res = (DWORD)DMA_ioport_in( port );
break;
default:
return FALSE; /* not handled */
WARN("Direct I/O read attempted from port %x\n", port);
break;
}
return TRUE; /* handled */
return res;
}
/**********************************************************************
* DOSVM_outport
* outport (WINEDOS.@)
*/
BOOL WINAPI DOSVM_outport( int port, int size, DWORD value )
void WINAPI DOSVM_outport( int port, int size, DWORD value )
{
TRACE("IO: 0x%lx (%d-byte value) to port 0x%04x\n", value, size, port );
#ifdef HAVE_PPDEV
if (do_pp_port_access == -1) do_pp_port_access = IO_pp_init();
if ((do_pp_port_access == 0) && (size == 1))
{
if (!IO_pp_outp(port,&value)) return;
}
#endif
#ifdef DIRECT_IO_ACCESS
if (do_direct_port_access == -1) IO_port_init();
if ((do_direct_port_access)
/* Make sure we have access to the port */
&& (port_permissions[port] & IO_WRITE))
{
iopl(3);
switch(size)
{
case 1: outb( LOBYTE(value), port ); break;
case 2: outw( LOWORD(value), port ); break;
case 4: outl( value, port ); break;
}
iopl(0);
return;
}
#endif
switch (port)
{
case 0x20:
DOSVM_PIC_ioport_out( port, (BYTE)value );
break;
case 0x40:
case 0x41:
case 0x42:
{
BYTE chan = port & 3;
/* we need to get the oldval before any lo/hi byte change has been made */
if (((tmr_8253[chan].ctrlbyte_ch & 0x30) != 0x30) ||
!tmr_8253[chan].byte_toggle)
tmr_8253[chan].oldval = tmr_8253[chan].countmax;
switch ((tmr_8253[chan].ctrlbyte_ch & 0x30) >> 4)
{
case 0:
break; /* shouldn't happen? */
case 1: /* write lo byte */
tmr_8253[chan].countmax =
(tmr_8253[chan].countmax & 0xff00) | (BYTE)value;
break;
case 3: /* write lo byte, then hi byte */
tmr_8253[chan].byte_toggle ^= TRUE; /* toggle */
if (tmr_8253[chan].byte_toggle)
{
tmr_8253[chan].countmax =
(tmr_8253[chan].countmax & 0xff00) | (BYTE)value;
break;
}
/* else [fall through if write hi byte !] */
case 2: /* write hi byte */
tmr_8253[chan].countmax =
(tmr_8253[chan].countmax & 0x00ff) | ((BYTE)value << 8);
break;
}
/* if programming is finished and value has changed
then update to new value */
if ((((tmr_8253[chan].ctrlbyte_ch & 0x30) != 0x30) ||
!tmr_8253[chan].byte_toggle) &&
(tmr_8253[chan].countmax != tmr_8253[chan].oldval))
set_timer_maxval(chan, tmr_8253[chan].countmax);
}
break;
case 0x43:
{
BYTE chan = ((BYTE)value & 0xc0) >> 6;
/* ctrl byte for specific timer channel */
if (chan == 3)
{
FIXME("8254 timer readback not implemented yet\n");
break;
}
switch (((BYTE)value & 0x30) >> 4)
{
case 0: /* latch timer */
tmr_8253[chan].latched = TRUE;
dummy_ctr -= 1 + (int)(10.0 * rand() / (RAND_MAX + 1.0));
if (chan == 0) /* System timer divisor */
tmr_8253[chan].latch = dummy_ctr + (WORD)DOSVM_GetTimer();
else
{
/* FIXME: intelligent hardware timer emulation needed */
tmr_8253[chan].latch = dummy_ctr;
}
break;
case 3: /* write lo byte, then hi byte */
tmr_8253[chan].byte_toggle = FALSE; /* init */
/* fall through */
case 1: /* write lo byte only */
case 2: /* write hi byte only */
tmr_8253[chan].ctrlbyte_ch = (BYTE)value;
break;
}
}
break;
case 0x61:
parport_8255[1] = (BYTE)value;
if ((((BYTE)parport_8255[1] & 3) == 3) && (tmr_8253[2].countmax != 1))
{
TRACE("Beep (freq: %d) !\n", 1193180 / tmr_8253[2].countmax);
Beep(1193180 / tmr_8253[2].countmax, 20);
}
break;
case 0x70:
cmosaddress = (BYTE)value & 0x7f;
break;
case 0x71:
cmosimage[cmosaddress & 0x3f] = (BYTE)value;
break;
case 0x226:
case 0x22c:
SB_ioport_out( port, (BYTE)value );
@ -230,7 +712,7 @@ BOOL WINAPI DOSVM_outport( int port, int size, DWORD value )
DMA_ioport_out( port, (BYTE)value );
break;
default:
return FALSE; /* not handled */
WARN("Direct I/O write attempted to port %x\n", port );
break;
}
return TRUE; /* handled */
}

0
msdos/ppdev.c → dlls/winedos/ppdev.c
View File

6
dlls/winedos/timer.c
View File

@ -28,8 +28,6 @@
WINE_DEFAULT_DEBUG_CHANNEL(int);
/*
* FIXME: Move timer ioport handling here and remove
* Dosvm.GetTimer/Dosvm.SetTimer.
* FIXME: Use QueryPerformanceCounter for
* more precise GetTimer implementation.
* FIXME: Use QueryPerformanceCounter (or GetTimer implementation)
@ -96,7 +94,7 @@ static void WINAPI TIMER_DoSetTimer( ULONG_PTR arg )
/***********************************************************************
* GetTimer (WINEDOS.@)
* DOSVM_GetTimer
*/
UINT WINAPI DOSVM_GetTimer( void )
{
@ -117,7 +115,7 @@ UINT WINAPI DOSVM_GetTimer( void )
/***********************************************************************
* SetTimer (WINEDOS.@)
* DOSVM_SetTimer
*/
void WINAPI DOSVM_SetTimer( UINT ticks )
{

4
dlls/winedos/winedos.spec
View File

@ -4,7 +4,5 @@
@ stdcall CallBuiltinHandler(ptr long) DOSVM_CallBuiltinHandler
# I/O functions
@ stdcall SetTimer(long) DOSVM_SetTimer
@ stdcall GetTimer() DOSVM_GetTimer
@ stdcall inport(long long ptr) DOSVM_inport
@ stdcall inport(long long) DOSVM_inport
@ stdcall outport(long long long) DOSVM_outport

6
include/callback.h
View File

@ -31,10 +31,8 @@ typedef struct {
void (WINAPI *CallBuiltinHandler)( CONTEXT86 *context, BYTE intnum );
/* I/O functions */
void (WINAPI *SetTimer)( unsigned ticks );
unsigned (WINAPI *GetTimer)( void );
BOOL (WINAPI *inport)( int port, int size, DWORD *res );
BOOL (WINAPI *outport)( int port, int size, DWORD val );
DWORD (WINAPI *inport)( int port, int size );
void (WINAPI *outport)( int port, int size, DWORD val );
} DOSVM_TABLE;
extern DOSVM_TABLE Dosvm;

9
include/miscemu.h
View File

@ -107,18 +107,9 @@ extern UINT DOSMEM_MapLinearToDos(LPVOID); /* linear Wine to DOS */
/* memory/instr.c */
extern DWORD INSTR_EmulateInstruction( EXCEPTION_RECORD *rec, CONTEXT86 *context );
/* msdos/ioports.c */
extern DWORD IO_inport( int port, int count );
extern void IO_outport( int port, int count, DWORD value );
/* msdos/dpmi.c */
extern BOOL DPMI_LoadDosSystem(void);
/* misc/ppdev.c */
extern BOOL IO_pp_outp(int port, DWORD* res);
extern int IO_pp_inp(int port, DWORD* res);
extern char IO_pp_init(void);
#define PTR_REAL_TO_LIN(seg,off) \
((void*)(((unsigned int)(seg) << 4) + LOWORD(off)))

2
msdos/dpmi.c
View File

@ -48,8 +48,6 @@ BOOL DPMI_LoadDosSystem(void)
}
#define GET_ADDR(func) Dosvm.func = (void *)GetProcAddress(DosModule, #func);
GET_ADDR(SetTimer);
GET_ADDR(GetTimer);
GET_ADDR(inport);
GET_ADDR(outport);
GET_ADDR(EmulateInterruptPM);

569
msdos/ioports.c
View File

@ -1,569 +0,0 @@
/*
* Emulation of processor ioports.
*
* Copyright 1995 Morten Welinder
* Copyright 1998 Andreas Mohr, Ove Kaaven
*
* 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 2.1 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
*/
/* Known problems:
- only a few ports are emulated.
- real-time clock in "cmos" is bogus. A nifty alarm() setup could
fix that, I guess.
*/
#include "config.h"
#include "wine/port.h"
#include <ctype.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "winternl.h"
#include "callback.h"
#include "miscemu.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(int);
static struct {
WORD countmax;
BOOL16 byte_toggle; /* if TRUE, then hi byte has already been written */
WORD latch;
BOOL16 latched;
BYTE ctrlbyte_ch;
WORD oldval;
} tmr_8253[3] = {
{0xFFFF, FALSE, 0, FALSE, 0x36, 0},
{0x0012, FALSE, 0, FALSE, 0x74, 0},
{0x0001, FALSE, 0, FALSE, 0xB6, 0},
};
static int dummy_ctr = 0;
static BYTE parport_8255[4] = {0x4f, 0x20, 0xff, 0xff};
static BYTE cmosaddress;
static BYTE cmosimage[64] =
{
0x27, 0x34, 0x31, 0x47, 0x16, 0x15, 0x00, 0x01,
0x04, 0x94, 0x26, 0x02, 0x50, 0x80, 0x00, 0x00,
0x40, 0xb1, 0x00, 0x9c, 0x01, 0x80, 0x02, 0x00,
0x1c, 0x00, 0x00, 0xad, 0x02, 0x10, 0x00, 0x00,
0x08, 0x00, 0x00, 0x26, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x03, 0x19,
0x00, 0x1c, 0x19, 0x81, 0x00, 0x0e, 0x00, 0x80,
0x1b, 0x7b, 0x21, 0x00, 0x00, 0x00, 0x05, 0x5f
};
#if defined(linux) && defined(__i386__)
# define DIRECT_IO_ACCESS
#else
# undef DIRECT_IO_ACCESS
# undef PP_IO_ACCESS
#endif /* linux && __i386__ */
#ifdef HAVE_PPDEV
static int do_pp_port_access = -1; /* -1: uninitialized, 1: not available
0: available);*/
#endif
#ifdef DIRECT_IO_ACCESS
extern int iopl(int level);
static char do_direct_port_access = -1;
static char port_permissions[0x10000];
#define IO_READ 1
#define IO_WRITE 2
static void IO_FixCMOSCheckSum(void)
{
WORD sum = 0;
int i;
for (i=0x10; i < 0x2d; i++)
sum += cmosimage[i];
cmosimage[0x2e] = sum >> 8; /* yes, this IS hi byte !! */
cmosimage[0x2f] = sum & 0xff;
TRACE("calculated hi %02x, lo %02x\n", cmosimage[0x2e], cmosimage[0x2f]);
}
#endif /* DIRECT_IO_ACCESS */
static void set_timer_maxval(unsigned timer, unsigned maxval)
{
switch (timer) {
case 0: /* System timer counter divisor */
if (Dosvm.SetTimer) Dosvm.SetTimer(maxval);
break;
case 1: /* RAM refresh */
FIXME("RAM refresh counter handling not implemented !\n");
break;
case 2: /* cassette & speaker */
/* speaker on ? */
if (((BYTE)parport_8255[1] & 3) == 3)
{
TRACE("Beep (freq: %d) !\n", 1193180 / maxval );
Beep(1193180 / maxval, 20);
}
break;
}
}
/**********************************************************************
* IO_port_init
*/
/* set_IO_permissions(int val1, int val)
* Helper function for IO_port_init
*/
#ifdef DIRECT_IO_ACCESS
static void set_IO_permissions(int val1, int val, char rw)
{
int j;
if (val1 != -1) {
if (val == -1) val = 0x3ff;
for (j = val1; j <= val; j++)
port_permissions[j] |= rw;
do_direct_port_access = 1;
val1 = -1;
} else if (val != -1) {
do_direct_port_access = 1;
port_permissions[val] |= rw;
}
}
/* do_IO_port_init_read_or_write(char* temp, char rw)
* Helper function for IO_port_init
*/
static void do_IO_port_init_read_or_write(const WCHAR *str, char rw)
{
int val, val1, i;
WCHAR *end;
static const WCHAR allW[] = {'a','l','l',0};
if (!strcmpiW(str, allW))
{
for (i=0; i < sizeof(port_permissions); i++)
port_permissions[i] |= rw;
}
else
{
val = -1;
val1 = -1;
while (*str)
{
switch(*str)
{
case ',':
case ' ':
case '\t':
set_IO_permissions(val1, val, rw);
val1 = -1;
val = -1;
str++;
break;
case '-':
val1 = val;
if (val1 == -1) val1 = 0;
str++;
break;
default:
if (isdigitW(*str))
{
val = strtoulW( str, &end, 0 );
if (end == str)
{
val = -1;
str++;
}
else str = end;
}
break;
}
}
set_IO_permissions(val1, val, rw);
}
}
static inline BYTE inb( WORD port )
{
BYTE b;
__asm__ __volatile__( "inb %w1,%0" : "=a" (b) : "d" (port) );
return b;
}
static inline WORD inw( WORD port )
{
WORD w;
__asm__ __volatile__( "inw %w1,%0" : "=a" (w) : "d" (port) );
return w;
}
static inline DWORD inl( WORD port )
{
DWORD dw;
__asm__ __volatile__( "inl %w1,%0" : "=a" (dw) : "d" (port) );
return dw;
}
static inline void outb( BYTE value, WORD port )
{
__asm__ __volatile__( "outb %b0,%w1" : : "a" (value), "d" (port) );
}
static inline void outw( WORD value, WORD port )
{
__asm__ __volatile__( "outw %w0,%w1" : : "a" (value), "d" (port) );
}
static inline void outl( DWORD value, WORD port )
{
__asm__ __volatile__( "outl %0,%w1" : : "a" (value), "d" (port) );
}
static void IO_port_init(void)
{
char tmp[1024];
HKEY hkey;
DWORD dummy;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
static const WCHAR portsW[] = {'M','a','c','h','i','n','e','\\',
'S','o','f','t','w','a','r','e','\\',
'W','i','n','e','\\','W','i','n','e','\\',
'C','o','n','f','i','g','\\','P','o','r','t','s',0};
static const WCHAR readW[] = {'r','e','a','d',0};
static const WCHAR writeW[] = {'w','r','i','t','e',0};
do_direct_port_access = 0;
/* Can we do that? */
if (!iopl(3))
{
iopl(0);
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nameW;
attr.Attributes = 0;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
RtlInitUnicodeString( &nameW, portsW );
if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr ))
{
RtlInitUnicodeString( &nameW, readW );
if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
{
WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
do_IO_port_init_read_or_write(str, IO_READ);
}
RtlInitUnicodeString( &nameW, writeW );
if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, tmp, sizeof(tmp), &dummy ))
{
WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)tmp)->Data;
do_IO_port_init_read_or_write(str, IO_WRITE);
}
NtClose( hkey );
}
}
IO_FixCMOSCheckSum();
}
#endif /* DIRECT_IO_ACCESS */
/**********************************************************************
* IO_inport
*
* Note: The size argument has to be handled correctly _externally_
* (as we always return a DWORD)
*/
DWORD IO_inport( int port, int size )
{
DWORD res = 0;
TRACE("%d-byte value from port 0x%02x\n", size, port );
#ifdef HAVE_PPDEV
if (do_pp_port_access == -1)
do_pp_port_access =IO_pp_init();
if ((do_pp_port_access == 0 ) && (size == 1))
if (!IO_pp_inp(port,&res))
return res;
#endif
#ifdef DIRECT_IO_ACCESS
if (do_direct_port_access == -1) IO_port_init();
if ((do_direct_port_access)
/* Make sure we have access to the port */
&& (port_permissions[port] & IO_READ))
{
iopl(3);
switch(size)
{
case 1: res = inb( port ); break;
case 2: res = inw( port ); break;
case 4: res = inl( port ); break;
default:
ERR("invalid data size %d\n", size);
}
iopl(0);
return res;
}
#endif
/* first give the DOS VM a chance to handle it */
if (Dosvm.inport || DPMI_LoadDosSystem())
if (Dosvm.inport( port, size, &res ))
return res;
switch (port)
{
case 0x40:
case 0x41:
case 0x42:
{
BYTE chan = port & 3;
WORD tempval = 0;
if (tmr_8253[chan].latched)
tempval = tmr_8253[chan].latch;
else
{
dummy_ctr -= 1 + (int)(10.0 * rand() / (RAND_MAX + 1.0));
if (chan == 0) /* System timer counter divisor */
{
/* FIXME: Dosvm.GetTimer() returns quite rigid values */
if (Dosvm.GetTimer)
tempval = dummy_ctr + (WORD)Dosvm.GetTimer();
else
tempval = dummy_ctr;
}
else
{
/* FIXME: intelligent hardware timer emulation needed */
tempval = dummy_ctr;
}
}
switch ((tmr_8253[chan].ctrlbyte_ch & 0x30) >> 4)
{
case 0:
res = 0; /* shouldn't happen? */
break;
case 1: /* read lo byte */
res = (BYTE)tempval;
tmr_8253[chan].latched = FALSE;
break;
case 3: /* read lo byte, then hi byte */
tmr_8253[chan].byte_toggle ^= TRUE; /* toggle */
if (tmr_8253[chan].byte_toggle)
{
res = (BYTE)tempval;
break;
}
/* else [fall through if read hi byte !] */
case 2: /* read hi byte */
res = (BYTE)(tempval >> 8);
tmr_8253[chan].latched = FALSE;
break;
}
}
break;
case 0x60:
#if 0 /* what's this port got to do with parport ? */
res = (DWORD)parport_8255[0];
#endif
break;
case 0x61:
res = (DWORD)parport_8255[1];
break;
case 0x62:
res = (DWORD)parport_8255[2];
break;
case 0x70:
res = (DWORD)cmosaddress;
break;
case 0x71:
res = (DWORD)cmosimage[cmosaddress & 0x3f];
break;
case 0x200:
case 0x201:
res = 0xffffffff; /* no joystick */
break;
default:
WARN("Direct I/O read attempted from port %x\n", port);
res = 0xffffffff;
break;
}
TRACE(" returning ( 0x%lx )\n", res );
return res;
}
/**********************************************************************
* IO_outport
*/
void IO_outport( int port, int size, DWORD value )
{
TRACE("IO: 0x%lx (%d-byte value) to port 0x%02x\n",
value, size, port );
#ifdef HAVE_PPDEV
if (do_pp_port_access == -1)
do_pp_port_access = IO_pp_init();
if ((do_pp_port_access == 0) && (size == 1))
if (!IO_pp_outp(port,&value))
return;
#endif
#ifdef DIRECT_IO_ACCESS
if (do_direct_port_access == -1) IO_port_init();
if ((do_direct_port_access)
/* Make sure we have access to the port */
&& (port_permissions[port] & IO_WRITE))
{
iopl(3);
switch(size)
{
case 1: outb( LOBYTE(value), port ); break;
case 2: outw( LOWORD(value), port ); break;
case 4: outl( value, port ); break;
default:
WARN("Invalid data size %d\n", size);
}
iopl(0);
return;
}
#endif
/* first give the DOS VM a chance to handle it */
if (Dosvm.outport || DPMI_LoadDosSystem())
if (Dosvm.outport( port, size, value ))
return;
switch (port)
{
case 0x40:
case 0x41:
case 0x42:
{
BYTE chan = port & 3;
/* we need to get the oldval before any lo/hi byte change has been made */
if (((tmr_8253[chan].ctrlbyte_ch & 0x30) != 0x30) ||
!tmr_8253[chan].byte_toggle)
tmr_8253[chan].oldval = tmr_8253[chan].countmax;
switch ((tmr_8253[chan].ctrlbyte_ch & 0x30) >> 4)
{
case 0:
break; /* shouldn't happen? */
case 1: /* write lo byte */
tmr_8253[chan].countmax =
(tmr_8253[chan].countmax & 0xff00) | (BYTE)value;
break;
case 3: /* write lo byte, then hi byte */
tmr_8253[chan].byte_toggle ^= TRUE; /* toggle */
if (tmr_8253[chan].byte_toggle)
{
tmr_8253[chan].countmax =
(tmr_8253[chan].countmax & 0xff00) | (BYTE)value;
break;
}
/* else [fall through if write hi byte !] */
case 2: /* write hi byte */
tmr_8253[chan].countmax =
(tmr_8253[chan].countmax & 0x00ff) | ((BYTE)value << 8);
break;
}
/* if programming is finished and value has changed
then update to new value */
if ((((tmr_8253[chan].ctrlbyte_ch & 0x30) != 0x30) ||
!tmr_8253[chan].byte_toggle) &&
(tmr_8253[chan].countmax != tmr_8253[chan].oldval))
set_timer_maxval(chan, tmr_8253[chan].countmax);
}
break;
case 0x43:
{
BYTE chan = ((BYTE)value & 0xc0) >> 6;
/* ctrl byte for specific timer channel */
if (chan == 3)
{
FIXME("8254 timer readback not implemented yet\n");
break;
}
switch (((BYTE)value & 0x30) >> 4)
{
case 0: /* latch timer */
tmr_8253[chan].latched = TRUE;
dummy_ctr -= 1 + (int)(10.0 * rand() / (RAND_MAX + 1.0));
if (chan == 0) /* System timer divisor */
if (Dosvm.GetTimer)
tmr_8253[chan].latch = dummy_ctr + (WORD)Dosvm.GetTimer();
else
tmr_8253[chan].latch = dummy_ctr;
else
{
/* FIXME: intelligent hardware timer emulation needed */
tmr_8253[chan].latch = dummy_ctr;
}
break;
case 3: /* write lo byte, then hi byte */
tmr_8253[chan].byte_toggle = FALSE; /* init */
/* fall through */
case 1: /* write lo byte only */
case 2: /* write hi byte only */
tmr_8253[chan].ctrlbyte_ch = (BYTE)value;
break;
}
}
break;
case 0x61:
parport_8255[1] = (BYTE)value;
if ((((BYTE)parport_8255[1] & 3) == 3) && (tmr_8253[2].countmax != 1))
{
TRACE("Beep (freq: %d) !\n", 1193180 / tmr_8253[2].countmax);
Beep(1193180 / tmr_8253[2].countmax, 20);
}
break;
case 0x70:
cmosaddress = (BYTE)value & 0x7f;
break;
case 0x71:
cmosimage[cmosaddress & 0x3f] = (BYTE)value;
break;
default:
WARN("Direct I/O write attempted to port %x\n", port );
break;
}
}