| #include <stdio.h> |
| #include "test.h" |
| #include "pci-userspace.h" |
| |
| #define DEBUG_INT1A |
| |
| #define SUCCESSFUL 0x00 |
| #define DEVICE_NOT_FOUND 0x86 |
| #define BAD_REGISTER_NUMBER 0x87 |
| |
| void x86emu_dump_xregs(void); |
| extern int verbose; |
| |
| |
| int int1A_handler() |
| { |
| PCITAG tag; |
| pciVideoPtr pvp = NULL; |
| |
| if (verbose) { |
| printf("\nint1a encountered.\n"); |
| x86emu_dump_xregs(); |
| } |
| |
| switch (X86_AX) { |
| case 0xb101: |
| X86_EAX = 0x00; /* no config space/special cycle support */ |
| X86_AL = 0x01; /* config mechanism 1 */ |
| X86_EDX = 0x20494350; /* " ICP" */ |
| X86_EBX = 0x0210; /* Version 2.10 */ |
| X86_ECX &= 0xFF00; |
| X86_ECX |= (pciNumBuses & 0xFF); /* Max bus number in system */ |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| #ifdef DEBUG_INT1A |
| if (verbose) |
| printf("PCI bios present.\n"); |
| #endif |
| return 1; |
| case 0xb102: |
| if (X86_DX == pvp->vendor_id && X86_CX == pvp->device_id && X86_ESI == 0) { |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| X86_EBX = pciSlotBX(pvp); |
| } |
| #ifdef SHOW_ALL_DEVICES |
| else if ((pvp = xf86FindPciDeviceVendor(X86_EDX, X86_ECX, X86_ESI, pvp))) { |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| X86_EBX = pciSlotBX(pvp); |
| } |
| #endif |
| else { |
| X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x ebx=0x%x eflags=0x%x\n", X86_EAX, X86_EBX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb103: |
| #if 0 |
| if (X86_CL == pvp->interface && |
| X86_CH == pvp->subclass && |
| ((X86_ECX & 0xFFFF0000) >> 16) == pvp->class) { |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EBX = pciSlotBX(pvp); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } |
| #else |
| /* FIXME: dirty hack */ |
| if (0); |
| #endif |
| #ifdef SHOW_ALL_DEVICES |
| else if ((pvp = FindPciClass(X86_CL, X86_CH, |
| (X86_ECX & 0xffff0000) >> 16, |
| X86_ESI, pvp))) { |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| X86_EBX = pciSlotBX(pvp); |
| } |
| #endif |
| else { |
| X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb108: |
| if ((tag = findPci(X86_EBX))) { |
| X86_CL = pciReadByte(tag, X86_EDI); |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } else { |
| X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb109: |
| if ((tag = findPci(X86_EBX))) { |
| X86_CX = pciReadWord(tag, X86_EDI); |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } else { |
| X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb10a: |
| if ((tag = findPci(X86_EBX))) { |
| X86_ECX = pciReadLong(tag, X86_EDI); |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } else { |
| X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb10b: |
| if ((tag = findPci(X86_EBX))) { |
| pciWriteByte(tag, X86_EDI, X86_CL); |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } else { |
| X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb10c: |
| if ((tag = findPci(X86_EBX))) { |
| pciWriteWord(tag, X86_EDI, X86_CX); |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } else { |
| X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| #endif |
| return 1; |
| case 0xb10d: |
| if ((tag = findPci(X86_EBX))) { |
| pciWriteLong(tag, X86_EDI, X86_ECX); |
| X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| } else { |
| X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| } |
| #ifdef DEBUG_INT1A |
| printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| #endif |
| return 1; |
| default: |
| printf("int1a: subfunction not implemented.\n"); |
| return 0; |
| } |
| } |