| /* |
| * Emulation of processor ioports. |
| * |
| * Copyright 1995 Morten Welinder |
| */ |
| |
| /* 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 <ctype.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include "windows.h" |
| #include "options.h" |
| #include "stddebug.h" |
| #include "debug.h" |
| |
| 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, 0x58, |
| 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 |
| #endif /* linux && __i386__ */ |
| |
| #ifdef DIRECT_IO_ACCESS |
| |
| extern int iopl(int level); |
| |
| static char do_direct_port_access = 0; |
| static char port_permissions[0x10000]; |
| |
| #define IO_READ 1 |
| #define IO_WRITE 2 |
| |
| #endif /* DIRECT_IO_ACCESS */ |
| |
| /********************************************************************** |
| * 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(char* temp, char rw) |
| { |
| int val, val1, i, len; |
| if (!strcasecmp(temp, "all")) { |
| fprintf(stderr, "Warning!!! Granting FULL IO port access to" |
| " windoze programs!\nWarning!!! " |
| "*** THIS IS NOT AT ALL " |
| "RECOMMENDED!!! ***\n"); |
| for (i=0; i < sizeof(port_permissions); i++) |
| port_permissions[i] |= rw; |
| |
| } else if (!(!strcmp(temp, "*") || *temp == '\0')) { |
| len = strlen(temp); |
| val = -1; |
| val1 = -1; |
| for (i = 0; i < len; i++) { |
| switch (temp[i]) { |
| case '0': |
| if (temp[i+1] == 'x' || temp[i+1] == 'X') { |
| sscanf(temp+i, "%x", &val); |
| i += 2; |
| } else { |
| sscanf(temp+i, "%d", &val); |
| } |
| while (isxdigit(temp[i])) |
| i++; |
| i--; |
| break; |
| case ',': |
| case ' ': |
| case '\t': |
| set_IO_permissions(val1, val, rw); |
| val1 = -1; val = -1; |
| break; |
| case '-': |
| val1 = val; |
| if (val1 == -1) val1 = 0; |
| break; |
| default: |
| if (temp[i] >= '0' && temp[i] <= '9') { |
| sscanf(temp+i, "%d", &val); |
| while (isdigit(temp[i])) |
| i++; |
| } |
| } |
| } |
| 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) ); |
| } |
| |
| #endif /* DIRECT_IO_ACCESS */ |
| |
| void IO_port_init() |
| { |
| #ifdef DIRECT_IO_ACCESS |
| char temp[1024]; |
| |
| /* Can we do that? */ |
| if (!iopl(3)) { |
| iopl(0); |
| |
| PROFILE_GetWineIniString( "ports", "read", "*", |
| temp, sizeof(temp) ); |
| do_IO_port_init_read_or_write(temp, IO_READ); |
| PROFILE_GetWineIniString( "ports", "write", "*", |
| temp, sizeof(temp) ); |
| do_IO_port_init_read_or_write(temp, IO_WRITE); |
| } |
| #endif /* DIRECT_IO_ACCESS */ |
| } |
| |
| |
| /********************************************************************** |
| * IO_inport |
| */ |
| DWORD IO_inport( int port, int count ) |
| { |
| DWORD res = 0; |
| BYTE b; |
| |
| #ifdef DIRECT_IO_ACCESS |
| if (do_direct_port_access) |
| { |
| /* Make sure we have access to the whole range */ |
| int i; |
| for (i = 0; i < count; i++) |
| if (!(port_permissions[port+i] & IO_READ)) break; |
| if (i == count) |
| { |
| iopl(3); |
| switch(count) |
| { |
| case 1: res = inb( port ); break; |
| case 2: res = inw( port ); break; |
| case 4: res = inl( port ); break; |
| default: |
| fprintf( stderr, "IO_inport: invalid count %d\n", count); |
| } |
| iopl(0); |
| return res; |
| } |
| } |
| #endif |
| |
| dprintf_int(stddeb, "IO: %d bytes from port 0x%02x ", count, port ); |
| |
| while (count-- > 0) |
| { |
| switch (port) |
| { |
| case 0x70: |
| b = cmosaddress; |
| break; |
| case 0x71: |
| b = cmosimage[cmosaddress & 0x3f]; |
| break; |
| default: |
| fprintf( stderr, "Direct I/O read attempted from port %x\n", port); |
| b = 0xff; |
| break; |
| } |
| port++; |
| res = (res << 8) | b; |
| } |
| dprintf_int(stddeb, "( 0x%lx )\n", res ); |
| return res; |
| } |
| |
| |
| /********************************************************************** |
| * IO_outport |
| */ |
| void IO_outport( int port, int count, DWORD value ) |
| { |
| BYTE b; |
| |
| dprintf_int( stddeb, "IO: 0x%lx (%d bytes) to port 0x%02x\n", |
| value, count, port ); |
| |
| #ifdef DIRECT_IO_ACCESS |
| if (do_direct_port_access) |
| { |
| /* Make sure we have access to the whole range */ |
| int i; |
| for (i = 0; i < count; i++) |
| if (!(port_permissions[port+i] & IO_WRITE)) break; |
| if (i == count) |
| { |
| iopl(3); |
| switch(count) |
| { |
| case 1: outb( LOBYTE(value), port ); break; |
| case 2: outw( LOWORD(value), port ); break; |
| case 4: outl( value, port ); break; |
| default: |
| fprintf( stderr, "IO_outport: invalid count %d\n", count); |
| } |
| iopl(0); |
| return; |
| } |
| } |
| #endif |
| |
| while (count-- > 0) |
| { |
| b = value & 0xff; |
| value >>= 8; |
| switch (port) |
| { |
| case 0x70: |
| cmosaddress = b & 0x7f; |
| break; |
| case 0x71: |
| cmosimage[cmosaddress & 0x3f] = b; |
| break; |
| default: |
| fprintf( stderr, "Direct I/O write attempted " |
| "to port %x\n", port ); |
| break; |
| } |
| port++; |
| } |
| } |