#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; } }