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add PCI framework

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3723
This commit is contained in:
Sebastian Strohhäcker 2011-06-18 13:39:31 +00:00
parent 1828977d5c
commit 6bc4e41458
10 changed files with 682 additions and 4 deletions
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115
src/ints/bios.cpp
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@ -26,6 +26,7 @@
#include "inout.h"
#include "pic.h"
#include "hardware.h"
#include "pci_bus.h"
#include "joystick.h"
#include "mouse.h"
#include "setup.h"
@ -354,8 +355,120 @@ static Bitu INT1A_Handler(void) {
TandyDAC_Handler(reg_ah);
break;
case 0xb1: /* PCI Bios Calls */
LOG(LOG_BIOS,LOG_ERROR)("INT1A:PCI bios call %2X",reg_al);
LOG(LOG_BIOS,LOG_WARN)("INT1A:PCI bios call %2X",reg_al);
#if defined(PCI_FUNCTIONALITY_ENABLED)
switch (reg_al) {
case 0x01: // installation check
if (PCI_IsInitialized()) {
reg_ah=0x00;
reg_al=0x01; // cfg space mechanism 1 supported
reg_bx=0x0210; // ver 2.10
reg_cx=0x0000; // only one PCI bus
reg_edx=0x20494350;
reg_edi=PCI_GetPModeInterface();
CALLBACK_SCF(false);
} else {
CALLBACK_SCF(true);
}
break;
case 0x02: { // find device
Bitu devnr=0;
Bitu count=0x100;
Bit32u devicetag=(reg_cx<<16)|reg_dx;
Bits found=-1;
for (Bitu i=0; i<=count; i++) {
IO_WriteD(0xcf8,0x80000000|(i<<8)); // query unique device/subdevice entries
if (IO_ReadD(0xcfc)==devicetag) {
if (devnr==reg_si) {
found=i;
break;
} else {
// device found, but not the SIth device
devnr++;
}
}
}
if (found>=0) {
reg_ah=0x00;
reg_bh=0x00; // bus 0
reg_bl=(Bit8u)(found&0xff);
CALLBACK_SCF(false);
} else {
reg_ah=0x86; // device not found
CALLBACK_SCF(true);
}
}
break;
case 0x03: { // find device by class code
Bitu devnr=0;
Bitu count=0x100;
Bit32u classtag=reg_ecx&0xffffff;
Bits found=-1;
for (Bitu i=0; i<=count; i++) {
IO_WriteD(0xcf8,0x80000000|(i<<8)); // query unique device/subdevice entries
if (IO_ReadD(0xcfc)!=0xffffffff) {
IO_WriteD(0xcf8,0x80000000|(i<<8)|0x08);
if ((IO_ReadD(0xcfc)>>8)==classtag) {
if (devnr==reg_si) {
found=i;
break;
} else {
// device found, but not the SIth device
devnr++;
}
}
}
}
if (found>=0) {
reg_ah=0x00;
reg_bh=0x00; // bus 0
reg_bl=(Bit8u)(found&0xff);
CALLBACK_SCF(false);
} else {
reg_ah=0x86; // device not found
CALLBACK_SCF(true);
}
}
break;
case 0x08: // read configuration byte
IO_WriteD(0xcf8,0x80000000|(reg_bx<<8)|(reg_di&0xfc));
reg_cl=IO_ReadB(0xcfc+(reg_di&3));
CALLBACK_SCF(false);
break;
case 0x09: // read configuration word
IO_WriteD(0xcf8,0x80000000|(reg_bx<<8)|(reg_di&0xfc));
reg_cx=IO_ReadW(0xcfc+(reg_di&2));
CALLBACK_SCF(false);
break;
case 0x0a: // read configuration dword
IO_WriteD(0xcf8,0x80000000|(reg_bx<<8)|(reg_di&0xfc));
reg_ecx=IO_ReadD(0xcfc+(reg_di&3));
CALLBACK_SCF(false);
break;
case 0x0b: // write configuration byte
IO_WriteD(0xcf8,0x80000000|(reg_bx<<8)|(reg_di&0xfc));
IO_WriteB(0xcfc+(reg_di&3),reg_cl);
CALLBACK_SCF(false);
break;
case 0x0c: // write configuration word
IO_WriteD(0xcf8,0x80000000|(reg_bx<<8)|(reg_di&0xfc));
IO_WriteW(0xcfc+(reg_di&2),reg_cx);
CALLBACK_SCF(false);
break;
case 0x0d: // write configuration dword
IO_WriteD(0xcf8,0x80000000|(reg_bx<<8)|(reg_di&0xfc));
IO_WriteD(0xcfc+(reg_di&3),reg_ecx);
CALLBACK_SCF(false);
break;
default:
LOG(LOG_BIOS,LOG_ERROR)("INT1A:PCI BIOS: unknown function %x (%x %x %x)",
reg_ax,reg_bx,reg_cx,reg_dx);
CALLBACK_SCF(true);
break;
}
#else
CALLBACK_SCF(true);
#endif
break;
default:
LOG(LOG_BIOS,LOG_ERROR)("INT1A:Undefined call %2X",reg_ah);