diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/common/_pcihelp.asm')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/common/_pcihelp.asm | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/common/_pcihelp.asm b/board/MAI/bios_emulator/scitech/src/pm/common/_pcihelp.asm new file mode 100644 index 0000000000..5b8dbcc73a --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/common/_pcihelp.asm @@ -0,0 +1,358 @@ +;**************************************************************************** +;* +;* SciTech OS Portability Manager Library +;* +;* ======================================================================== +;* +;* The contents of this file are subject to the SciTech MGL Public +;* License Version 1.0 (the "License"); you may not use this file +;* except in compliance with the License. You may obtain a copy of +;* the License at http://www.scitechsoft.com/mgl-license.txt +;* +;* Software distributed under the License is distributed on an +;* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +;* implied. See the License for the specific language governing +;* rights and limitations under the License. +;* +;* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +;* +;* The Initial Developer of the Original Code is SciTech Software, Inc. +;* All Rights Reserved. +;* +;* ======================================================================== +;* +;* Language: 80386 Assembler, TASM 4.0 or NASM +;* Environment: Any +;* +;* Description: Helper assembler functions for PCI access module. +;* +;**************************************************************************** + + IDEAL + +include "scitech.mac" ; Memory model macros + +header _pcilib + +begcodeseg _pcilib + +ifdef flatmodel + +;---------------------------------------------------------------------------- +; uchar _ASMAPI _BIOS32_service( +; ulong service, +; ulong func, +; ulong *physBase, +; ulong *length, +; ulong *serviceOffset, +; PCIBIOS_entry entry); +;---------------------------------------------------------------------------- +; Call the BIOS32 services directory +;---------------------------------------------------------------------------- +cprocstart _BIOS32_service + + ARG service:ULONG, func:ULONG, physBase:DPTR, len:DPTR, off:DPTR, entry:QWORD + + enter_c + mov eax,[service] + mov ebx,[func] +ifdef USE_NASM + call far dword [entry] +else + call [FWORD entry] +endif + mov esi,[physBase] + mov [esi],ebx + mov esi,[len] + mov [esi],ecx + mov esi,[off] + mov [esi],edx + leave_c + ret + +cprocend + +endif + +;---------------------------------------------------------------------------- +; ushort _ASMAPI _PCIBIOS_isPresent(ulong i_eax,ulong *o_edx,ushort *oeax, +; uchar *o_cl,PCIBIOS_entry entry) +;---------------------------------------------------------------------------- +; Call the PCI BIOS to determine if it is present. +;---------------------------------------------------------------------------- +cprocstart _PCIBIOS_isPresent + + ARG i_eax:ULONG, o_edx:DPTR, oeax:DPTR, o_cl:DPTR, entry:QWORD + + enter_c + mov eax,[i_eax] +ifdef flatmodel +ifdef USE_NASM + call far dword [entry] +else + call [FWORD entry] +endif +else + int 1Ah +endif + _les _si,[o_edx] + mov [_ES _si],edx + _les _si,[oeax] + mov [_ES _si],ax + _les _si,[o_cl] + mov [_ES _si],cl + mov ax,bx + leave_c + ret + +cprocend + +;---------------------------------------------------------------------------- +; ulong _PCIBIOS_service(ulong r_eax,ulong r_ebx,ulong r_edi,ulong r_ecx, +; PCIBIOS_entry entry) +;---------------------------------------------------------------------------- +; Call the PCI BIOS services, either via the 32-bit protected mode entry +; point or via the Int 1Ah 16-bit interrupt. +;---------------------------------------------------------------------------- +cprocstart _PCIBIOS_service + + ARG r_eax:ULONG, r_ebx:ULONG, r_edi:ULONG, r_ecx:ULONG, entry:QWORD + + enter_c + mov eax,[r_eax] + mov ebx,[r_ebx] + mov edi,[r_edi] + mov ecx,[r_ecx] +ifdef flatmodel +ifdef USE_NASM + call far dword [entry] +else + call [FWORD entry] +endif +else + int 1Ah +endif + mov eax,ecx +ifndef flatmodel + shld edx,eax,16 ; Return result in DX:AX +endif + leave_c + ret + +cprocend + +;---------------------------------------------------------------------------- +; int _PCIBIOS_getRouting(PCIRoutingOptionsBuffer *buf,PCIBIOS_entry entry); +;---------------------------------------------------------------------------- +; Get the routing options for PCI devices +;---------------------------------------------------------------------------- +cprocstart _PCIBIOS_getRouting + + ARG buf:DPTR, entry:QWORD + + enter_c + mov eax,0B10Eh + mov bx,0 + _les _di,[buf] +ifdef flatmodel +ifdef USE_NASM + call far dword [entry] +else + call [FWORD entry] +endif +else + int 1Ah +endif + movzx eax,ah + leave_c + ret + +cprocend + +;---------------------------------------------------------------------------- +; ibool _PCIBIOS_setIRQ(int busDev,int intPin,int IRQ,PCIBIOS_entry entry); +;---------------------------------------------------------------------------- +; Change the IRQ routing for the PCI device +;---------------------------------------------------------------------------- +cprocstart _PCIBIOS_setIRQ + + ARG busDev:UINT, intPin:UINT, IRQ:UINT, entry:QWORD + + enter_c + mov eax,0B10Fh + mov bx,[USHORT busDev] + mov cl,[BYTE intPin] + mov ch,[BYTE IRQ] +ifdef flatmodel +ifdef USE_NASM + call far dword [entry] +else + call [FWORD entry] +endif +else + int 1Ah +endif + mov eax,1 + jnc @@1 + xor eax,eax ; Function failed! +@@1: leave_c + ret + +cprocend + +;---------------------------------------------------------------------------- +; ulong _PCIBIOS_specialCycle(int bus,ulong data,PCIBIOS_entry entry); +;---------------------------------------------------------------------------- +; Generate a special cycle via the PCI BIOS. +;---------------------------------------------------------------------------- +cprocstart _PCIBIOS_specialCycle + + ARG bus:UINT, data:ULONG, entry:QWORD + + enter_c + mov eax,0B106h + mov bh,[BYTE bus] + mov ecx,[data] +ifdef flatmodel +ifdef USE_NASM + call far dword [entry] +else + call [FWORD entry] +endif +else + int 1Ah +endif + leave_c + ret + +cprocend + +;---------------------------------------------------------------------------- +; ushort _PCI_getCS(void) +;---------------------------------------------------------------------------- +cprocstart _PCI_getCS + + mov ax,cs + ret + +cprocend + +;---------------------------------------------------------------------------- +; int PM_inpb(int port) +;---------------------------------------------------------------------------- +; Reads a byte from the specified port +;---------------------------------------------------------------------------- +cprocstart PM_inpb + + ARG port:UINT + + push _bp + mov _bp,_sp + xor _ax,_ax + mov _dx,[port] + in al,dx + pop _bp + ret + +cprocend + +;---------------------------------------------------------------------------- +; int PM_inpw(int port) +;---------------------------------------------------------------------------- +; Reads a word from the specified port +;---------------------------------------------------------------------------- +cprocstart PM_inpw + + ARG port:UINT + + push _bp + mov _bp,_sp + xor _ax,_ax + mov _dx,[port] + in ax,dx + pop _bp + ret + +cprocend + +;---------------------------------------------------------------------------- +; ulong PM_inpd(int port) +;---------------------------------------------------------------------------- +; Reads a word from the specified port +;---------------------------------------------------------------------------- +cprocstart PM_inpd + + ARG port:UINT + + push _bp + mov _bp,_sp + mov _dx,[port] + in eax,dx +ifndef flatmodel + shld edx,eax,16 ; DX:AX = result +endif + pop _bp + ret + +cprocend + +;---------------------------------------------------------------------------- +; void PM_outpb(int port,int value) +;---------------------------------------------------------------------------- +; Write a byte to the specified port. +;---------------------------------------------------------------------------- +cprocstart PM_outpb + + ARG port:UINT, value:UINT + + push _bp + mov _bp,_sp + mov _dx,[port] + mov _ax,[value] + out dx,al + pop _bp + ret + +cprocend + +;---------------------------------------------------------------------------- +; void PM_outpw(int port,int value) +;---------------------------------------------------------------------------- +; Write a word to the specified port. +;---------------------------------------------------------------------------- +cprocstart PM_outpw + + ARG port:UINT, value:UINT + + push _bp + mov _bp,_sp + mov _dx,[port] + mov _ax,[value] + out dx,ax + pop _bp + ret + +cprocend + +;---------------------------------------------------------------------------- +; void PM_outpd(int port,ulong value) +;---------------------------------------------------------------------------- +; Write a word to the specified port. +;---------------------------------------------------------------------------- +cprocstart PM_outpd + + ARG port:UINT, value:ULONG + + push _bp + mov _bp,_sp + mov _dx,[port] + mov eax,[value] + out dx,eax + pop _bp + ret + +cprocend + +endcodeseg _pcilib + + END |
