$Revision: 473 $
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;; ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
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;**************************************************
;* ÏÎÈÑÊ ÌÛØÈ ÏÎ ÏÎÑËÅÄÎÂÀÒÅËÜÍÛÌ ÏÎÐÒÀÌ *
;* Ïðîöåäóðà ïîäãîòàâëèâàåò ãëîáàëüíûå ïåðåìåííûå *
;* COMPortNum è COMPortBaseAddr äëÿ ïîäïðîãðàììû *
;* óñòàíîâêè îáðàáîò÷èêà ïðåðûâàíèÿ *
;**************************************************
; Àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷.
; Àäàïòàöèÿ è äîðàáîòêà Mario79
Detect_COM_Mouse:
pusha
call MSMouseSearch
cmp AL,'M'
jne @f
mov [com1_mouse_detected],1
mov [irq_owner+4*4], 1 ; IRQ4 owner is System
mov eax, [RESERVED_PORTS]
inc eax
mov [RESERVED_PORTS], eax
shl eax, 4
mov [RESERVED_PORTS+eax+0], dword 1
mov [RESERVED_PORTS+eax+4], dword 0x3F8
mov [RESERVED_PORTS+eax+8], dword 0x3FF
mov esi,boot_setmouse_type+22
call boot_log
@@:
sub [COMPortBaseAddr],100h
call MSMouseSearch
cmp AL,'M'
jne @f
mov [com2_mouse_detected],1
mov [irq_owner+3*4], 1 ; IRQ3 owner is System
mov eax, [RESERVED_PORTS]
inc eax
mov [RESERVED_PORTS], eax
shl eax, 4
mov [RESERVED_PORTS+eax+0], dword 1
mov [RESERVED_PORTS+eax+4], dword 0x2F8
mov [RESERVED_PORTS+eax+8], dword 0x2FF
mov esi,boot_setmouse_type+44
call boot_log
@@:
popa
jmp end_detecting_mouse
MSMouseSearch:
; ÏÎÈÑÊ ÌÛØÈ ×ÅÐÅÇ COM-ÏÎÐÒÛ
MouseSearch:
; Óñòàíàâëèâàåì ñêîðîñòü
; ïðèåìà/ïåðåäà÷è 1200 áîä
mov DX,[COMPortBaseAddr]
add DX,3
in AL,DX
or AL,80h ;óñòàíîâèòü áèò DLAB
out DX,AL
mov DX,[COMPortBaseAddr]
mov AL,60h ;1200 áîä
out DX,AL
inc DX
mov AL,0
out DX,AL
; Óñòàíîâèòü äëèíó ñëîâà 7 áèò, 1 ñòîïîâûé áèò,
; ÷åòíîñòü íå êîíòðîëèðîâàòü
mov DX,[COMPortBaseAddr]
add DX,3
mov AL,00000010b
out DX,AL
; Çàïðåòèòü âñå ïðåðûâàíè
mov DX,[COMPortBaseAddr]
inc DX
mov AL,0
out DX,AL
; Ïðîâåðèòü, ÷òî óñòðîéñòâî ïîäêëþ÷åíî è ÿâëÿåòñ
; ìûøüþ òèïà MSMouse
; Îòêëþ÷èòü ïèòàíèå ìûøè è ïðåðûâàíè
mov DX,[COMPortBaseAddr]
add EDX,4 ;ðåãèñòð óïðàâëåíèÿ ìîäåìîì
mov AL,0 ;ñáðîñèòü DTR, RTS è OUT2
out DX,AL
; Îæèäàòü 5 "òèêîâ" (0,2 ñ)
mov ecx, 0xFFFF
loop $
; Âêëþ÷èòü ïèòàíèå ìûøè
mov al, 1
out dx, al
mov ecx, 0xFFFF
loop $
; Î÷èñòèòü ðåãèñòð äàííûõ
sub edx, 4
in AL,DX
add edx, 4
mov AL,11b ;óñòàíîâèòü DTR è RTS
out DX,AL
mov ecx, 0x1FFFF
; Öèêë îïðîñà ïîðòà
WaitData:
; Îæèäàòü åùå 10 "òèêîâ"
dec ecx
cmp ecx,0
je NoMouse
; Ïðîâåðèòü íàëè÷èå èäåíòèôèêàöèîííîãî áàéòà
mov DX,[COMPortBaseAddr]
add DX,5
in AL,DX
test AL,1 ;Äàííûå ãîòîâû?
jz WaitData
; Ââåñòè äàííûå
mov DX,[COMPortBaseAddr]
in AL,DX
NoMouse:
ret
iglobal
COMPortBaseAddr dw 3F8h
;COMPortNum dw 0
endg
iglobal
boot_setmouse_type db 'Detected - PS2 mouse',0
db 'Detected - COM1 mouse',0
db 'Detected - COM2 mouse',0
endg
end_detecting_mouse: