;
; This file is part of the Infinity sound AC97 driver.
; (C) copyright Serge 2006
; email: infinity_sound@mail.ru
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
align 4
proc attach_int_handler stdcall, irq:dword, handler:dword
mov ebx, [irq] ;irq num
test ebx, ebx
jz .err
mov eax, [handler]
test eax, eax
jz .err
mov [irq_tab+ebx*4], eax
stdcall enable_irq, [irq]
ret
.err:
xor eax, eax
ret
endp
align 4
proc detach_int_handler
ret
endp
align 4
proc enable_irq stdcall, irq_line:dword
mov ebx, [irq_line]
mov edx, 0x21
cmp ebx, 8
jb @F
mov edx, 0xA1
sub ebx,8
@@:
in al,dx
btr eax, ebx
out dx, al
ret
endp
align 16
;; proc irq_serv
irq_serv:
.irq_1:
push eax
mov eax, 1
jmp .main
align 4
.irq_2:
push eax
mov eax, 2
jmp .main
align 4
.irq_3:
push eax
mov eax, 3
jmp .main
align 4
.irq_4:
push eax
mov eax, 4
jmp .main
align 4
.irq_5:
push eax
mov eax, 5
jmp .main
align 4
.irq_6:
push eax
mov eax, 6
jmp .main
align 4
.irq_7:
push eax
mov eax, 7
jmp .main
align 4
.irq_8:
push eax
mov eax, 8
jmp .main
align 4
.irq_9:
push eax
mov eax, 9
jmp .main
align 4
.irq_10:
push eax
mov eax, 10
jmp .main
align 4
.irq_11:
push eax
mov eax, 11
jmp .main
align 4
.irq_12:
push eax
mov eax, 12
jmp .main
align 4
.irq_13:
push eax
mov eax, 13
jmp .main
align 4
.irq_14:
push eax
mov eax, 14
jmp .main
align 4
.irq_15:
push eax
mov eax, 15
jmp .main
align 16
.main:
save_ring3_context
mov bx, os_data
mov ds, bx
mov es, bx
mov ebx, [irq_tab+eax*4]
test ebx, ebx
jz .exit
call ebx
.exit:
restore_ring3_context
cmp eax, 8
mov al, 0x20
jb @f
out 0xa0, al
@@:
out 0x20, al
pop eax
iret
align 4
proc get_notify stdcall, p_ev:dword
.wait:
mov ebx,[CURRENT_TASK]
shl ebx,8
test dword [ebx+PROC_BASE+0xA8],EVENT_NOTIFY
jz @f
and dword [ebx+PROC_BASE+0xA8], not EVENT_NOTIFY
mov edi, [p_ev]
mov dword [edi], EV_INTR
mov eax, [ebx+PROC_BASE+APPDATA.event]
mov dword [edi+4], eax
ret
@@:
call change_task
jmp .wait
endp
align 4
proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword
xor eax, eax
xor ebx, ebx
mov ah, byte [bus]
mov al, 6
mov bh, byte [devfn]
mov bl, byte [reg]
call pci_read_reg
ret
endp
align 4
proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword
xor eax, eax
xor ebx, ebx
mov ah, byte [bus]
mov al, 4
mov bh, byte [devfn]
mov bl, byte [reg]
call pci_read_reg
ret
endp
align 4
proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword
xor eax, eax
xor ebx, ebx
mov ah, byte [bus]
mov al, 8
mov bh, byte [devfn]
mov bl, byte [reg]
mov ecx, [val]
call pci_write_reg
ret
endp
handle equ IOCTL.handle
io_code equ IOCTL.io_code
input equ IOCTL.input
inp_size equ IOCTL.inp_size
output equ IOCTL.output
out_size equ IOCTL.out_size
align 4
proc srv_handler stdcall, ioctl:dword
mov esi, [ioctl]
test esi, esi
jz .err
mov edi, [esi+handle]
cmp [edi+SRV.magic], ' SRV'
jne .fail
cmp [edi+SRV.size], SRV_SIZE
jne .fail
stdcall [edi+SRV.srv_proc], esi
ret
.fail:
xor eax, eax
not eax
mov [esi+output], eax
mov [esi+out_size], 4
ret
.err:
xor eax, eax
not eax
ret
endp
align 4
proc srv_handlerEx stdcall, ioctl:dword
mov esi, [ioctl]
test esi, esi
jz .err
add esi, new_app_base
mov edi, [esi+handle]
cmp [edi+SRV.magic], ' SRV'
jne .fail
cmp [edi+SRV.size], SRV_SIZE
jne .fail
add [esi+input], new_app_base
add [esi+output], new_app_base
stdcall [edi+SRV.srv_proc], esi
ret
.fail:
xor eax, eax
not eax
mov [esi+output], eax
mov [esi+out_size], 4
ret
.err:
xor eax, eax
not eax
ret
endp
restore handle
restore io_code
restore input
restore inp_size
restore output
restore out_size
align 4
proc get_service stdcall, sz_name:dword
locals
srv_ptr dd ?
counter dd ?
endl
mov eax, [sz_name]
test eax, eax
jz .fail
mov [srv_ptr], srv_tab
mov [counter], 16
@@:
stdcall strncmp, [srv_ptr], [sz_name], 16
test eax, eax
je .ok
add [srv_ptr], SRV_SIZE
dec [counter]
jnz @B
.not_load:
stdcall find_service, [sz_name]
test eax, eax
jz .fail
stdcall load_lib, eax
test eax, eax
jz .fail
mov [srv_ptr], srv_tab
mov [counter], 16
@@:
stdcall strncmp, [srv_ptr], [sz_name], 16
test eax, eax
je .ok
add [srv_ptr], SRV_SIZE
dec [counter]
jnz @B
.fail:
xor eax, eax
ret
.ok:
mov eax, [srv_ptr]
ret
endp
align 4
proc find_service stdcall ,sz_name:dword
mov eax, [sz_name]
test eax, eax
jz .fail
mov esi, services
@@:
mov eax, [esi]
test eax, eax
jz .fail
push esi
stdcall strncmp, eax, [sz_name], 16
pop esi
test eax, eax
je .ok
add esi, 8
jmp @B
.ok:
mov eax, [esi+4]
ret
.fail:
xor eax, eax
ret
endp
align 4
proc reg_service stdcall, sz_name:dword, handler:dword
locals
srv dd ?
endl
mov eax, [sz_name]
test eax, eax
jz .fail
mov ebx, [handler]
test ebx, ebx
jz .fail
call alloc_service
test eax, eax
jz .fail
mov [srv], eax
mov edi, eax
mov esi, [sz_name]
mov ecx, 16
rep movsb
mov edi, eax
mov [edi+SRV.magic], ' SRV'
mov [edi+SRV.size], SRV_SIZE
mov ebx, [handler]
mov [edi+SRV.srv_proc], ebx
mov eax, [srv]
ret
.fail:
xor eax, eax
ret
endp
align 4
proc get_proc stdcall, exp:dword, sz_name:dword
mov edx, [exp]
.next:
mov eax, [edx]
test eax, eax
jz .end
push edx
stdcall strncmp, eax, [sz_name], 16
pop edx
test eax, eax
jz .ok
add edx,8
jmp .next
.ok:
mov eax, [edx+4]
.end:
ret
endp
align 4
proc link_dll stdcall, exp:dword, imp:dword
mov esi, [imp]
.next:
mov eax, [esi]
test eax, eax
jz .end
push esi
stdcall get_proc, [exp], eax
pop esi
test eax, eax
jz @F
mov [esi], eax
@@:
add esi, 4
jmp .next
.end:
ret
endp
align 4
proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword
@@:
stdcall strncmp, [pSym], [sz_sym], 8
test eax,eax
jz .ok
add [pSym], 18
dec [count]
jnz @b
xor eax, eax
ret
.ok:
mov ebx, [pSym]
mov eax, [ebx+8]
ret
endp
align 4
proc load_lib stdcall, name:dword
locals
lib dd ?
base dd ?
pSym dd ?
endl
mov eax, [name]
mov ebx, 1 ;index of first block
mov ecx, 32 ;number of blocks
mov edx, TMP_BUFF ;temp area
mov esi, 12 ;file name length
call fileread ;read file from RD
cmp eax,0
jne .err
; mov eax, [TMP_BUFF+CFH.pSymTable]
; add eax, TMP_BUFF
; mov [pSym], eax
; mov [TMP_BUFF+20+CFS.VirtualAddress], eax
stdcall kernel_alloc, [TMP_BUFF+20+CFS.SizeOfRawData]
mov [base], eax
test eax, eax
jnz @f
@@:
mov [TMP_BUFF+20+CFS.VirtualAddress], eax
mov ebx, [TMP_BUFF+CFH.pSymTable]
add ebx, TMP_BUFF
mov [pSym], ebx
stdcall LinkSection, TMP_BUFF, TMP_BUFF+20, ebx
mov edi, [base]
test edi, edi
jnz @f
@@:
mov esi, [TMP_BUFF+20+CFS.PtrRawData]
add esi, TMP_BUFF
mov ecx, [TMP_BUFF+20+CFS.SizeOfRawData]
rep movsb
call alloc_dll
test eax, eax
jnz @f
@@:
mov [lib], eax
mov edi, eax
mov esi, [name]
mov ecx, 16
rep movsb
stdcall get_coff_sym,[pSym],[TMP_BUFF+CFH.nSymbols],szSTART
mov edi, [lib]
add eax, [base]
mov [edi+LIB.lib_start], eax
mov ebx, [base]
mov [edi+LIB.lib_base], ebx
stdcall get_coff_sym,[pSym],[TMP_BUFF+CFH.nSymbols], szEXPORTS
mov edi, [lib]
add eax, [base]
mov [edi+LIB.export], eax
stdcall get_coff_sym,[pSym],[TMP_BUFF+CFH.nSymbols], szIMPORTS
mov edi, [lib]
add eax, [base]
mov [edi+LIB.import], eax
stdcall link_dll, kernel_export, eax
mov edi, [lib]
call [edi+LIB.lib_start]
mov eax, [lib]
ret
.err:
xor eax, eax
ret
endp
align 4
proc LinkSection stdcall, pCoff:dword, pSec:dword, pSym:dword
locals
pCode dd ?
endl
mov esi, [pSec]
mov eax, [esi+CFS.PtrRawData]
add eax, [pCoff]
mov [pCode], eax
mov edi, [esi+CFS.PtrReloc]
add edi, [pCoff]
movzx edx, [esi+CFS.NumReloc]
mov eax, edx
lea edx, [edx+edx*8]
add edx, eax
add edx, edi
.l_0:
cmp edi, edx
jae .exit
mov ebx, [edi+CRELOC.SymIndex]
add ebx,ebx
lea ebx,[ebx+ebx*8]
add ebx, [pSym]
mov ecx, [ebx+CSYM.Value]
add ecx, [esi+CFS.VirtualAddress]
mov eax, [edi+CRELOC.VirtualAddress]
add eax, [pCode]
add [eax], ecx
add edi, 10
jmp .l_0
.exit:
ret
endp
proc get_curr_task
mov eax,[CURRENT_TASK]
shl eax, 8
ret
endp
drv_sound db 'UNISOUNDOBJ', 0
drv_infinity db 'INFINITYOBJ', 0
szSound db 'SOUND',0
szInfinity db 'INFINITY',0
szSTART db 'START',0
szEXPORTS db 'EXPORTS',0
szIMPORTS db 'IMPORTS',0
align 16
services:
dd szSound, drv_sound
dd szInfinity, drv_infinity
dd 0