Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
Stefan Reinauer | 850e7d4 | 2015-09-28 13:12:04 -0700 | [diff] [blame] | 2 | #include <stdtypes.h> |
| 3 | #include "testbios.h" |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 4 | #include "pci-userspace.h" |
| 5 | |
| 6 | #define DEBUG_INT1A |
| 7 | |
| 8 | #define SUCCESSFUL 0x00 |
| 9 | #define DEVICE_NOT_FOUND 0x86 |
| 10 | #define BAD_REGISTER_NUMBER 0x87 |
| 11 | |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 12 | extern int verbose; |
| 13 | |
Stefan Reinauer | 850e7d4 | 2015-09-28 13:12:04 -0700 | [diff] [blame] | 14 | int int1A_handler(void) |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 15 | { |
Stefan Reinauer | 850e7d4 | 2015-09-28 13:12:04 -0700 | [diff] [blame] | 16 | PCITAG tag = NULL; |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 17 | pciVideoPtr pvp = NULL; |
| 18 | |
| 19 | if (verbose) { |
| 20 | printf("\nint1a encountered.\n"); |
Li-Ta Lo | 8b0356c | 2005-01-11 03:18:39 +0000 | [diff] [blame] | 21 | //x86emu_dump_xregs(); |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 22 | } |
| 23 | |
| 24 | switch (X86_AX) { |
| 25 | case 0xb101: |
| 26 | X86_EAX = 0x00; /* no config space/special cycle support */ |
| 27 | X86_AL = 0x01; /* config mechanism 1 */ |
| 28 | X86_EDX = 0x20494350; /* " ICP" */ |
| 29 | X86_EBX = 0x0210; /* Version 2.10 */ |
| 30 | X86_ECX &= 0xFF00; |
| 31 | X86_ECX |= (pciNumBuses & 0xFF); /* Max bus number in system */ |
| 32 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 33 | #ifdef DEBUG_INT1A |
| 34 | if (verbose) |
| 35 | printf("PCI bios present.\n"); |
| 36 | #endif |
| 37 | return 1; |
| 38 | case 0xb102: |
| 39 | if (X86_DX == pvp->vendor_id && X86_CX == pvp->device_id && X86_ESI == 0) { |
| 40 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 41 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
Stefan Reinauer | 850e7d4 | 2015-09-28 13:12:04 -0700 | [diff] [blame] | 42 | X86_EBX = pciSlotBX(tag); // XXX used to be pvp, but both are NULL |
Li-Ta Lo | 8152126 | 2004-07-08 17:18:27 +0000 | [diff] [blame] | 43 | } |
| 44 | #ifdef SHOW_ALL_DEVICES |
| 45 | else if ((pvp = xf86FindPciDeviceVendor(X86_EDX, X86_ECX, X86_ESI, pvp))) { |
| 46 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 47 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 48 | X86_EBX = pciSlotBX(pvp); |
| 49 | } |
| 50 | #endif |
| 51 | else { |
| 52 | X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8); |
| 53 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 54 | } |
| 55 | #ifdef DEBUG_INT1A |
| 56 | printf("eax=0x%x ebx=0x%x eflags=0x%x\n", X86_EAX, X86_EBX, X86_EFLAGS); |
| 57 | #endif |
| 58 | return 1; |
| 59 | case 0xb103: |
| 60 | #if 0 |
| 61 | if (X86_CL == pvp->interface && |
| 62 | X86_CH == pvp->subclass && |
| 63 | ((X86_ECX & 0xFFFF0000) >> 16) == pvp->class) { |
| 64 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 65 | X86_EBX = pciSlotBX(pvp); |
| 66 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 67 | } |
| 68 | #else |
| 69 | /* FIXME: dirty hack */ |
| 70 | if (0); |
| 71 | #endif |
| 72 | #ifdef SHOW_ALL_DEVICES |
| 73 | else if ((pvp = FindPciClass(X86_CL, X86_CH, |
| 74 | (X86_ECX & 0xffff0000) >> 16, |
| 75 | X86_ESI, pvp))) { |
| 76 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 77 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 78 | X86_EBX = pciSlotBX(pvp); |
| 79 | } |
| 80 | #endif |
| 81 | else { |
| 82 | X86_EAX = X86_AL | (DEVICE_NOT_FOUND << 8); |
| 83 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 84 | } |
| 85 | #ifdef DEBUG_INT1A |
| 86 | printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| 87 | #endif |
| 88 | return 1; |
| 89 | case 0xb108: |
| 90 | if ((tag = findPci(X86_EBX))) { |
| 91 | X86_CL = pciReadByte(tag, X86_EDI); |
| 92 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 93 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 94 | } else { |
| 95 | X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| 96 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 97 | } |
| 98 | #ifdef DEBUG_INT1A |
| 99 | printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); |
| 100 | #endif |
| 101 | return 1; |
| 102 | case 0xb109: |
| 103 | if ((tag = findPci(X86_EBX))) { |
| 104 | X86_CX = pciReadWord(tag, X86_EDI); |
| 105 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 106 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 107 | } else { |
| 108 | X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| 109 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 110 | } |
| 111 | #ifdef DEBUG_INT1A |
| 112 | printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); |
| 113 | #endif |
| 114 | return 1; |
| 115 | case 0xb10a: |
| 116 | if ((tag = findPci(X86_EBX))) { |
| 117 | X86_ECX = pciReadLong(tag, X86_EDI); |
| 118 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 119 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 120 | } else { |
| 121 | X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| 122 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 123 | } |
| 124 | #ifdef DEBUG_INT1A |
| 125 | printf("eax=0x%x ecx=0x%x eflags=0x%x\n", X86_EAX, X86_ECX, X86_EFLAGS); |
| 126 | #endif |
| 127 | return 1; |
| 128 | case 0xb10b: |
| 129 | if ((tag = findPci(X86_EBX))) { |
| 130 | pciWriteByte(tag, X86_EDI, X86_CL); |
| 131 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 132 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 133 | } else { |
| 134 | X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| 135 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 136 | } |
| 137 | #ifdef DEBUG_INT1A |
| 138 | printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| 139 | #endif |
| 140 | return 1; |
| 141 | case 0xb10c: |
| 142 | if ((tag = findPci(X86_EBX))) { |
| 143 | pciWriteWord(tag, X86_EDI, X86_CX); |
| 144 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 145 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 146 | } else { |
| 147 | X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| 148 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 149 | } |
| 150 | #ifdef DEBUG_INT1A |
| 151 | printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| 152 | #endif |
| 153 | return 1; |
| 154 | case 0xb10d: |
| 155 | if ((tag = findPci(X86_EBX))) { |
| 156 | pciWriteLong(tag, X86_EDI, X86_ECX); |
| 157 | X86_EAX = X86_AL | (SUCCESSFUL << 8); |
| 158 | X86_EFLAGS &= ~((unsigned long) 0x01); /* clear carry flag */ |
| 159 | } else { |
| 160 | X86_EAX = X86_AL | (BAD_REGISTER_NUMBER << 8); |
| 161 | X86_EFLAGS |= ((unsigned long) 0x01); /* set carry flag */ |
| 162 | } |
| 163 | #ifdef DEBUG_INT1A |
| 164 | printf("eax=0x%x eflags=0x%x\n", X86_EAX, X86_EFLAGS); |
| 165 | #endif |
| 166 | return 1; |
| 167 | default: |
| 168 | printf("int1a: subfunction not implemented.\n"); |
| 169 | return 0; |
| 170 | } |
| 171 | } |