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git-svn-id: svn://kolibrios.org@1350 a494cfbc-eb01-0410-851d-a64ba20cac60
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Artem Jerdev (art_zh) 2010-01-02 14:55:48 +00:00
parent cb9aaafe63
commit 65a2f244a2
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565
PCIDEV.ASM
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@ -1,565 +0,0 @@
;***************************************************************
; project name: PCI Device Enumeration
; target platform: KolibriOS
; compiler: flat assembler 1.68
; version: 2.2
; last update: December 2007
; maintained by: Jason Delozier (cordata51@hotmail.com)
; Sergey Kuzmin (kuzmin_serg@list.ru)
; Mihailov Ilia (ghost.nsk@gmail.com)
; Artem Jerdev (art_zh@yahoo.com)
; project site: http://www.coolthemes.narod.ru/pcidev.html
;***************************************************************
;Summary: This program will attempt to scan the PCI Bus
; and display basic information about each device
; connected to the PCI Bus.
;***************************************************************
;HISTORY:
;keep dates in european format (dd/mm/yyyy), please
; '!' means big changes
;
;to-do:
; more vendors
; vendor's website
; Subsystem id and Subsystem vendor id detection
; Full device detection (like "ATI Radeon 9200") will increase app
; size a lot and probably it is function of particular drivers
;----------------------------------------------------------------
;2.2: PCIDEV 31/12/2009
;Author: Artem Jerdev <art_zh@yahoo.com>
;Features:
; fixed
; * English in some comments ;)
; added
; * ! user-accessible PCI memory channels detection
; * ! ASCII-dump as PCI memory access demonstration
; optimization
; * (yet needed)
;----------------------------------------------------------------
;2.1: PCIDEV ??/04/2007
;Author: Mihailov Ilia aka Ghost <ghost.nsk@gmail.com>
;Features:
; fixed
; * Some little bugs
; * Source code formating
; * PCI version normalized 0210 -> 2.10
; added
; * + 13 vendor (total now 1000!)
; * + 3 class type
; * Fast call source ready
; * Device IRQ detection
; optimized
; * ! size optimized (61025 -> 32501 see added)
; * easy to add new vendor & class names
;----------------------------------------------------------------
;2.0: PCIDEV 30/08/2006
;(it differs a lot from the version 1.0, which was introduced 19 months ago)
;Author: Marat Zakiyanov aka Mario79 <mario79@bk.ru>
; Sergey Kuzmin aka Wildwest <kuzmin_serg@list.ru>
;Features:
; added
; * Detection of Interface by Mario79
; * 122 vendor id's by Wildwest
; * Description is based on Class, SubClass and Interface now (PCI 3.0) by Wildwest
;----------------------------------------------------------------
;1.31: PCIDEV 13/05/2006
;Author: Jason Delozier <cordata51@hotmail.com>
;Features:
; fixed
; * ! bug in Company Name look up code that would cause Unknown Name errors.
; * ! possible bugs, many instructions missing byte, word, dword prefixes
; * ! possible bug which could have occured after removing "PREVIOUSVERSIONLIST"
; entry in loop up code and not fixing jump parameters.
; added
; * comments to various parts of the code
; optimized
; * various parts of the source, too many to remember and mention.
; * changed entries for Subclasses in vendors.inc to Byte format, saves a little space.
;----------------------------------------------------------------
;1.30: PCIDEV 11/05/2006
;Author: Sergey Kuzmin aka Wildwest <kuzmin_serg@list.ru>
;Features:
; added
; * 3 new vendor id's (ESS from Madis Kalme and 2 id's
; forgotten from 1.15 release: Broadcom -SiByte and Chaintech Comp.)
; changed
; * I don't know why other devs (Jason or Victor) changed window style
; to old ugly one, so I changed it back to skinned type 3.
; * the same goes to the use of macroc.inc - it is enabled again.
; deleted
; * there is no more label "PREVIOUSVERSIONLIST" - id's moved to the
; appropriate parts of global list.
;----------------------------------------------------------------
;1.29: PCIDEV 30/04/2006
;Author: Jason Delozier <cordata51@hotmail.com>
;Features:
; fixed
; * ! bug that would not allow devices with device
; numbers > 16 to be displayed.
; added
; * ! another heading called "FNC" (function) which allows
; the multipurpose Device/Function varible to be split and
; displayed to the user properly.
; * horizontal bars to display for easier reading.
; optimized
; * vendor/description search routines for speed and space.
;----------------------------------------------------------------
;1.25: PCIDEV 02/10/2005
;Author: Sergey Kuzmin aka Wildwest <kuzmin_serg@list.ru>
;Features:
; changed
; * ! Description is based on Class and SubClass
; now (PCI 3.0). The Names of Classes and SubClasses
; are in the end of Vendors.inc
; deleted
; * label "Descriptions" (names of Classes)
;
;----------------------------------------------------------------
;1.20: PCIDEV 16/08/2005
;Author: Victor Alberto Gil Hanla a.k.a. vhanla <vhanla@gmail.com>
;Features:
; added
; * ! many vendor lists (865)
; deleted
; * previous version's list
; changed
; * previous Company Name searching and printing
;----------------------------------------------------------------
;1.15: PCIDEV 03/06/2005
;Author: Sergey Kuzmin aka Wildwest <kuzmin_serg@list.ru>
;Features:
; added
; * quantity of devices,
; * ! detection of Company Name based on Vendor ID,
; * database of VenID (35 ID's),
; * macros.inc for smaller size,
; changed
; * interface+(skinned window),
; * VenID before DevID in 'table'(was DevID before VenID)
;----------------------------------------------------------------
;1.0: PCIDEV 30/01/2005
;Author: Jason Delozier
;Features:
; able to
; * detect PCI version,
; * quantity of PCI buses,
; * Vendor&Device ID for appropriate Device on Bus;
; * detect Revision, Class and Subclass of Device,
; * and make Description based on Class
;-------------------------------------------------------------
;include '..\..\macros.inc'
include 'macros.inc'
MEOS_APP_START
CODE
call draw_window
still: mcall 10 ; wait here for event
dec eax ; redraw request ?
jz red
dec eax ; key in buffer ?
jz key
dec eax ; button in buffer ?
jz button
jmp still
red: ; redraw
mcall 9, Proc_Info, -1 ; window redraw requested so get new window coordinates and size
mov eax, [Proc_Info.box.left]; store the window coordinates into the Form Structure
mov [Form + 2], ax ; x start position
mov eax, [Proc_Info.box.top];
mov [Form + 6], ax ; ystart position
mov eax, [Proc_Info.box.width] ;
mov [Form], ax ; window width
mov eax, [Proc_Info.box.height] ;
mov [Form + 4] ,ax ; window height
call draw_window ; go redraw window now
jmp still
key: ; key
mcall 2 ; just read it and ignore
jmp still
button: ; button
mcall 17 ; get id
cmp ah, 1 ; button id = 1 ?
jne still
mcall -1 ; close this program
draw_window:
mov byte [total], 0
mcall 12, 1 ; start of draw
; DRAW WINDOW
mcall 0, dword [Form], dword [Form + 4], 0x13ffffff, 0x805080d0, title
; Insert horizontal bars in list area
mov eax, 13 ; draw bar system function
mov ebx, 18 ; set Xstart position of bar
shl ebx, 16 ;
mov bx, word [Form] ; get width of window
sub bx, 32 ; bar is 32 pixels shorter then window width
mov ecx, 119 * 65536 + 10 ; set Ystart(109) and Height(10) of bar 109
mov edx, 0xC0C0C0 ; set color of bar
again: ;begin draw bar loop
mcall ; draw bar to window area
shr ecx, 16 ; move the Ystart position to working area
add ecx, 34 ; add 34 pixels to Y Start (moves bar down)
cmp cx, word [Form + 4] ; is the Ystart position outside of window area
jae nomo ; if so stop drawing bars
sub ecx, 14 ; if not, we only need 20 pixels between bar tops
shl ecx, 16 ; set that values as Ystart
add ecx, 10 ; Bar Height is always 10 pixels
jmp again ; draw another bar
nomo: ;done drawing bars here
; start PCI stuff
call Get_PCI_Info ; get pci version and last bus, scan for and draw each pci device
; Window inteface
mov cx, [PCI_Version]
add ch, '0'
mov [PCIWin + 85], ch ; 0xBADCODE but it works !
mov ch, cl
shr cl, 4
and ch, 0x0f
add cx, '00'
mov [PCIWin + 87], cx
mov cl, [PCI_LastBus] ; will only work if [PCI_LastBus] < 10
add cl, '0'
mov [PCIWin + 106], cl
mov edx, PCIWin
mov ebx, 20 * 65536 + 25 ; x start, ystart of text
mov ecx, 0x224466 ; color of text
mov eax, 4
@@: movzx esi, byte[edx]
inc edx
mcall
add ebx, 10
add edx, esi
cmp byte[edx], -1
jne @b
; Quantity of devices...
movzx ecx, byte [total] ; number to draw
mcall 47, 0x00020000,,150 * 65536 + 65, 0x224466
call Try_MMIO
mcall 12, 2 ; end of draw
ret
;------------------------------------------------------------------
;* Gets the PCI Version and Last Bus
Get_PCI_Info:
mcall 62, 0
mov word [PCI_Version], ax
mcall 62, 1
mov byte [PCI_LastBus], al
;----------------------------------------------------------
;* Get all devices on PCI Bus
cmp al, 0xff ; 0xFF means no pci bus found
jne Pci_Exists ;
ret ; if no bus then leave
Pci_Exists:
mov byte [V_Bus], 0 ; reset varibles
mov byte [V_Dev], 0 ;
mov edx, 20 * 65536 + 110 ; set start write position
Start_Enum:
mov bl, 6 ; get a dword
mov bh, byte [V_Bus] ; bus of pci device
mov ch, byte [V_Dev] ; device number/function
mov cl, 0 ; offset to device/vendor id
mcall 62 ; get ID's
cmp ax, 0 ; Vendor ID should not be 0 or 0xFFFF
je nextDev ; check next device if nothing exists here
cmp ax, 0xffff ;
je nextDev ;
mov word [PCI_Vendor], ax ; There is a device here, save the ID's
shr eax, 16 ;
mov word [PCI_Device], ax ;
mov bl, 4 ; Read config byte
mov bh, byte [V_Bus] ; Bus #
mov ch, byte [V_Dev] ; Device # on bus
mov cl, 0x08 ; Register to read (Get Revision)
mcall 62 ; Read it
mov byte [PCI_Rev], al ; Save it
mov cl, 0x0b ; Register to read (Get class)
mcall 62 ; Read it
mov byte [PCI_Class], al ; Save it
mov cl, 0x0a ; Register to read (Get Subclass)
mcall 62 ; Read it
mov byte [PCI_SubClass], al; Save it
; by Mario79 august 2006
mov cl, 0x09 ; Register to read (Get Interface)
mcall 62 ; Read it
mov [PCI_Interface], al ; Save it
;
; by Ghost april 2007
mov cl, 0x3c ; Register to read (Get IRQ)
@@: mcall 62 ; Read it
mov [PCI_IRQ], al ; Save it
;
inc byte [total] ; one more device found
call Print_New_Device ; print device info to screen
nextDev:
inc byte [V_Dev] ; next device on this bus
jnz Start_Enum ; jump until we reach zero
;(used to be JNO which caused bug!!! 30-4-2006, JMD)
mov byte [V_Dev], 0 ; reset device number
inc byte [V_Bus] ; next bus
mov al, byte [PCI_LastBus] ; get last bus
cmp byte [V_Bus], al ; was it last bus
jbe Start_Enum ; if not jump to keep searching
ret
;------------------------------------------------------------------
;* Print device info to screen
Print_New_Device:
xor esi, esi ; default text color
; by art_zh December 2009
mov ch, byte [V_Bus]
mov cl, byte [V_Dev]
mcall 62, 11 ; detect uMMIO
cmp eax, -2
je no_ummio_here
mov esi, 0x990033 ; highlighted text color
mov bh, byte [V_Bus]
mov bl, byte [V_Dev]
mov byte [MMIO_Bus], bh
mov byte [MMIO_Dev], bl
add bh,'0'
mov [PCIWin + 129], bh ; uMMIO bus
mov al, bl
shr al, 1
shr al, 1
shr al, 1
add al,'0'
mov [PCIWin + 131], al ; uMMIO device
and bl, 7
add bl, '0'
mov [PCIWin + 133], bl ; uMMIO function
no_ummio_here:
movzx ecx,word [PCI_Vendor] ; Pointer to number to be written
mcall 47, 0x00040100 ; Write Vendor ID
and edx, 0xFFFF ;*****************************************
or edx, 54 * 65536 ; X start becomes 54
movzx ecx, word [PCI_Device] ; get Vendor ID
mcall ; Draw Vendor ID to Window
and edx, 0xFFFF ;*****************************************
or edx, 98 * 65536 ; X start becomes 98
movzx ecx, byte [V_Bus] ; get bus number
mcall ,0x00020100 ; draw bus number to screen
and edx, 0xFFFF ;*****************************************
or edx, 128 * 65536 ; X start becomes 128
movzx ecx, byte [V_Dev] ; get device number
shr ecx, 3 ; device number is bits 3-7
mcall ; Draw device Number To Window
and edx, 0xFFFF ;*****************************************
or edx, 155 * 65536 ; X start becomes 155
movzx ecx, byte [V_Dev] ; get Function number
and ecx, 7 ; function is first 3 bits
mcall ; Draw Function Number To Window
and edx, 0xFFFF ;*****************************************
or edx, 179 * 65536 ; X start becomes 179
movzx ecx, byte [PCI_Rev] ; get revision number
mcall ; Draw Revision to screen
and edx, 0xFFFF ;*****************************************
or edx, 215*65536 ; X start becomes 215
movzx ecx, byte [PCI_Class] ; get PCI_Class
mcall ; Draw Class to screen
and edx, 0xFFFF ;*****************************************
or edx, 250*65536 ; X start becomes 250
movzx ecx, byte [PCI_SubClass]; get sub class
mcall ; Draw Sub Class to screen
; from Mario79 august 2006
and edx, 0xFFFF ;*****************************************
or edx, 280 * 65536 ; X start becomes 280
movzx ecx, [PCI_Interface] ; get Interface
mcall
;
; from Ghost april 2007 ;*****************************************
movzx ecx, [PCI_IRQ] ; get Interface
cmp cl, 0x0f ; IRQ between 0..15
ja @f
and edx, 0xFFFF
or edx, 310 * 65536 ; X start becomes 310
mcall
@@:
;
;Write Names
movzx ebx, dx ; Set y position
or ebx, 340 * 65536 ; set Xposition to 340
;------------------------------------------------------------------
; Prints the Vendor's Name based on Vendor ID
;
; Modified on ??-04-2007 by Ghost for size
;------------------------------------------------------------------
mov edx, VendorsTab
mov cx, word[PCI_Vendor]
.fn: mov ax, [edx]
add edx, 6
test ax, ax
jz .find
cmp ax, cx
jne .fn
.find: mov edx, [edx - 4]
mcall 4,, 0x80000000 ; lets print the vendor Name
;------------------------------------------------------------------
; Get description based on Class/Subclass
;
; Modified on ??-04-2007 by Ghost for size
;------------------------------------------------------------------
mov eax, dword [PCI_Class]
and eax, 0xffffff
xor edx, edx
xor esi, esi
.fnc: inc esi
mov ecx, [Classes + esi * 8 - 8]
cmp cx, 0xffff
je .endfc
cmp cx, ax
jne .fnc
test ecx, 0xff000000
jz @f
mov edx, [Classes + esi * 8 - 4]
jmp .fnc
@@: cmp eax, ecx
jne .fnc
xor edx, edx
.endfc: test edx, edx
jnz @f
mov edx, [Classes + esi * 8 - 4]
@@:
and ebx, 0x0000FFFF ; clear X position
or ebx, 0x24E0000 ; set X position to 590 pixels
mcall 4,, 0x80000000,, 32 ; draw the text
movzx edx, bx ; get y coordinate
add edx, 0x0014000A ; add 10 to y coordinate and set x coordinate to 20
mov [gr_pos], edx
ret
;------------------------------------------------------------------
; Get the user-MMIO related info
;
; Added on ??-12-2009 by art_zh
;------------------------------------------------------------------
Try_MMIO:
xor ebx, ebx
mov edx, ebx
mov bh, byte [MMIO_BAR]
or bx, 12 ; function 12
mov ecx, 4096 ; =1 page to map
mcall 62
mov ecx, 0x80990022 ; print color : red
mov bh, byte [MMIO_BAR]
add bh, '0'
cmp eax, -3
jne @f
mov [bar_um+3], bh
mov ebx, [gr_pos]
mov edx, bar_um
mcall 4
jmp mmio_next_bar
@@:
cmp eax, -4
jne @f
mov [bar_io+3], bh
mov ebx, [gr_pos]
mov edx, bar_io
mcall 4
jmp mmio_next_bar
@@:
mov [bar_ram+3], bh
mov ebx, [gr_pos]
mov edx, bar_ram
mcall 4
mov edx, eax
mov esi, 64
mov ecx, 0x099 ; dump color : blue
add ebx, 10
mov [gr_pos], ebx
mcall 4
mov ecx, eax ; release the tried page
mcall 62,13
mmio_next_bar:
mov bh, [MMIO_BAR]
inc bh
cmp bh,6
je @f
mov [MMIO_BAR], bh
add [gr_pos], 10
jmp Try_MMIO
@@:
xor bh,bh
mov [MMIO_BAR], bh
ret
include 'VENDORS.INC'
;------------------------------------------------------------------
; DATA AREA
DATA
Form: dw 800 ; window width (no more, special for 800x600)
dw 100 ; window x start
dw 420 ; window height
dw 100 ; window y start
title db 'PCI Device Enumerator v 2.2 by J.Delozier, S.Kuzmin, V.Hanla, M.Zakiyanov, A.Jerdev', 0
PCIWin mls \
' Don`t forget to enable PCI Access to Applications in Setup Menu.',\
'',\
'PCI Version = x.xx; Last PCI Bus = x',\
'User MMIO channel = 0F.F:F ',\
'Number of PCI units =',\
'',\
'VenID DevID Bus# Dev# Fnc Rev Class Subclass/ IRQ Company Description',\
' Interface',\
'----- ----- ---- ---- --- --- ----- --------- --- ------------------------------------------ ----------------'
bar_ram db 'BARx: MMIO block', 0
bar_io db 'BARx: IO ports',0
bar_um db 'BARx: unmapped',0
bar_rom db 'BAR6: Onboard ROM', 0 ; << no ROM test yet
;------------------------------------------------------------------
; UNINITIALIZED DATA AREA
UDATA
total db ?
V_Bus db ?
V_Dev db ?
PCI_Version dw ?
PCI_LastBus db ?
PCI_Device dw ?
PCI_Vendor dw ?
PCI_Bus db ?
PCI_Dev db ?
PCI_Rev db ?
; don`t change order!!!
PCI_Class db ?
PCI_SubClass db ?
PCI_Interface db ?
PCI_IRQ db ?
align 4
MMIO_Bus db ?
MMIO_Dev db ?
MMIO_BAR db 0
MMIO_Blk db 0
MMIO_Map rd 8
gr_pos dd ?
Proc_Info process_information
MEOS_APP_END

51
pci16.inc
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@ -1,51 +0,0 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; PCI16.INC ;;
;; ;;
;; 16 bit PCI driver code ;;
;; ;;
;; Version 0.2 December 21st, 2002 ;;
;; ;;
;; Author: Victor Prodan, victorprodan@yahoo.com ;;
;; ;;
;; See file COPYING for details ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision: 593 $
init_pci_16:
pushad
xor ax,ax
mov es,ax
mov byte [es:0x9020],1 ;default mechanism:1
mov ax,0xb101
int 0x1a
or ah,ah
jnz pci16skip
mov [es:0x9021],cl ;last PCI bus in system
mov [es:0x9022],bx
mov [es:0x9024],edi
; we have a PCI BIOS, so check which configuration mechanism(s)
; it supports
; AL = PCI hardware characteristics (bit0 => mechanism1, bit1 => mechanism2)
test al,1
jnz pci16skip
test al,2
jz pci16skip
mov byte [es:0x9020],2 ; if (al&3)==2 => mechanism 2
pci16skip:
mov ax,0x1000
mov es,ax
popad

203
pci32.inc
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@ -1,203 +0,0 @@
; Error codes
; eax = -1 : user access to PCI blocked,
; eax = -2 : an invalid BAR register referred
; eax = -3 : no i/o space on that BAR
; eax = -4 : a port i/o BAR register referred
; eax = -5 : dynamic userspace allocation problem
;***************************************************************************
align 4
pci_mmio_map:
and edx,0x0ffff
cmp ah,6
jc @f
mov eax,-2
ret
@@:
push ecx
add ebx, 4095
and ebx,-4096
push ebx
mov bl, ah ; bl = BAR# (0..5)
shl bl, 1
shl bl, 1
add bl, 0x10 ; bl = BARs offset in PCI config. space
mov ax,word [mmio_pci_addr]
mov bh, al ; bh = dddddfff
mov al, 2 ; al : DW to read
call pci_read_reg
or eax, eax
jnz @f
mov eax,-3 ; empty I/O space
jmp mmio_ret_fail
@@:
test eax, 1
jz @f
mov eax,-4 ; damned ports (not MMIO space)
jmp mmio_ret_fail
@@:
pop ecx ; ecx = block size, bytes (expanded to whole page)
mov ebx, ecx ; user_alloc destroys eax, ecx, edx, but saves ebx
push eax ; store MMIO physical address + keep 2DWords in the stack
stdcall user_alloc, ecx
or eax, eax
jnz mmio_map_over
mov eax,-5 ; problem with page allocation
mmio_ret_fail:
pop ecx
pop edx
ret
mmio_map_over:
mov ecx, ebx ; ecx = size (bytes, expanded to whole page)
shr ecx, 12 ; ecx = number of pages
mov ebx, eax ; ebx = linear address
pop eax ; eax = MMIO start
pop edx ; edx = MMIO shift (pages)
shl edx, 12 ; edx = MMIO shift (bytes)
add eax, edx ; eax = uMMIO physical address
or eax, PG_SHARED
or eax, PG_UW
or eax, PG_NOCACHE
mov edi, ebx
call commit_pages
mov eax, edi
ret
;***************************************************************************
; Function
; pci_mmio_unmap_page ; NEW!
;
; Description
; unmaps the linear space previously tied to a PCI memory block
;
; IN: ebx = linear address of space previously allocated by pci_mmio_map
; returns eax = 1 if successfully unmapped
;
; Error codes
; eax = -1 if no user PCI access allowed,
; eax = 0 if unmapping failed
;***************************************************************************
align 4
pci_mmio_unmap:
stdcall user_free, ebx
ret
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
; VendID (2), DevID (2), Revision = 0 (1), Class Code (3), FNum (1), Bus (1)
pci_emu_dat: times 30*10 db 0
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
align 4
sys_pcibios:
xchg ebx, eax
xchg ecx, eax
xchg edx, eax
xchg esi, eax
xchg edi, eax
cmp [pci_access_enabled], 1
jne .unsupported_func
cmp [pci_bios_entry], 0
jz .emulate_bios
push ds
mov ax, pci_data_sel
mov ds, ax
mov eax, ebp
mov ah, 0B1h
call pword [cs:pci_bios_entry]
pop ds
jmp .return
;-=-=-=-=-=-=-=-=
.emulate_bios:
cmp ebp, 1 ; PCI_FUNCTION_ID
jnz .not_PCI_BIOS_PRESENT
mov edx, 'PCI '
mov al, [OS_BASE+0x2F0000 + 0x9020]
mov bx, [OS_BASE+0x2F0000 + 0x9022]
mov cl, [OS_BASE+0x2F0000 + 0x9021]
xor ah, ah
jmp .return_abcd
.not_PCI_BIOS_PRESENT:
cmp ebp, 2 ; FIND_PCI_DEVICE
jne .not_FIND_PCI_DEVICE
mov ebx, pci_emu_dat
..nxt: cmp [ebx], dx
jne ..no
cmp [ebx + 2], cx
jne ..no
dec si
jns ..no
mov bx, [ebx + 4]
xor ah, ah
jmp .return_ab
..no: cmp word[ebx], 0
je ..dev_not_found
add ebx, 10
jmp ..nxt
..dev_not_found:
mov ah, 0x86 ; DEVICE_NOT_FOUND
jmp .return_a
.not_FIND_PCI_DEVICE:
cmp ebp, 3 ; FIND_PCI_CLASS_CODE
jne .not_FIND_PCI_CLASS_CODE
mov esi, pci_emu_dat
shl ecx, 8
..nxt2: cmp [esi], ecx
jne ..no2
mov bx, [esi]
xor ah, ah
jmp .return_ab
..no2: cmp dword[esi], 0
je ..dev_not_found
add esi, 10
jmp ..nxt2
.not_FIND_PCI_CLASS_CODE:
cmp ebp, 8 ; READ_CONFIG_*
jb .not_READ_CONFIG
cmp ebp, 0x0A
ja .not_READ_CONFIG
mov eax, ebp
mov ah, bh
mov edx, edi
mov bh, bl
mov bl, dl
call pci_read_reg
mov ecx, eax
xor ah, ah ; SUCCESSFUL
jmp .return_abc
.not_READ_CONFIG:
cmp ebp, 0x0B ; WRITE_CONFIG_*
jb .not_WRITE_CONFIG
cmp ebp, 0x0D
ja .not_WRITE_CONFIG
lea eax, [ebp+1]
mov ah, bh
mov edx, edi
mov bh, bl
mov bl, dl
call pci_write_reg
xor ah, ah ; SUCCESSFUL
jmp .return_abc
.not_WRITE_CONFIG:
.unsupported_func:
mov ah, 0x81 ; FUNC_NOT_SUPPORTED
.return:mov dword[esp + 8 ], edi
mov dword[esp + 12], esi
.return_abcd:
mov dword[esp + 28], edx
.return_abc:
mov dword[esp + 32], ecx
.return_ab:
mov dword[esp + 24], ebx
.return_a:
mov dword[esp + 36], eax
ret

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vendors.inc
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