136 lines
3.6 KiB
PHP
136 lines
3.6 KiB
PHP
;**************************************************
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;* ÏÎÈÑÊ ÌÛØÈ ÏÎ ÏÎÑËÅÄÎÂÀÒÅËÜÍÛÌ ÏÎÐÒÀÌ *
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;* Ïðîöåäóðà ïîäãîòàâëèâàåò ãëîáàëüíûå ïåðåìåííûå *
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;* COMPortNum è COMPortBaseAddr äëÿ ïîäïðîãðàììû *
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;* óñòàíîâêè îáðàáîò÷èêà ïðåðûâàíèÿ *
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;**************************************************
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; Àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷.
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; Àäàïòàöèÿ è äîðàáîòêà Mario79
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Detect_COM_Mouse:
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pusha
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call MSMouseSearch
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cmp AL,'M'
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jne @f
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mov [com1_mouse_detected],1
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pusha
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mov eax,4
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shl eax,2
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mov [irq_owner+eax],byte 1
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inc dword [0x2d0000]
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mov edi,[0x2d0000]
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shl edi,4
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mov [0x2d0000+edi+0],dword 1
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mov [0x2d0000+edi+4],dword 0x3f0
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mov [0x2d0000+edi+8],dword 0x3ff
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popa
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mov esi,boot_setmouse_type+22
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call boot_log
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@@:
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sub [COMPortBaseAddr],100h
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call MSMouseSearch
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cmp AL,'M'
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jne @f
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mov [com2_mouse_detected],1
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pusha
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mov eax,3
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shl eax,2
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mov [irq_owner+eax],byte 1
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inc dword [0x2d0000]
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mov edi,[0x2d0000]
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shl edi,4
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mov [0x2d0000+edi+0],dword 1
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mov [0x2d0000+edi+4],dword 0x2f0
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mov [0x2d0000+edi+8],dword 0x2ff
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popa
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mov esi,boot_setmouse_type+44
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call boot_log
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@@:
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popa
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jmp end_detecting_mouse
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MSMouseSearch:
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; ÏÎÈÑÊ ÌÛØÈ ×ÅÐÅÇ COM-ÏÎÐÒÛ
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MouseSearch:
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; Óñòàíàâëèâàåì ñêîðîñòü
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; ïðèåìà/ïåðåäà÷è 1200 áîä
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mov DX,[COMPortBaseAddr]
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add DX,3
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in AL,DX
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or AL,80h ;óñòàíîâèòü áèò DLAB
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out DX,AL
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mov DX,[COMPortBaseAddr]
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mov AL,60h ;1200 áîä
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out DX,AL
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inc DX
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mov AL,0
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out DX,AL
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; Óñòàíîâèòü äëèíó ñëîâà 7 áèò, 1 ñòîïîâûé áèò,
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; ÷åòíîñòü íå êîíòðîëèðîâàòü
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mov DX,[COMPortBaseAddr]
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add DX,3
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mov AL,00000010b
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out DX,AL
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; Çàïðåòèòü âñå ïðåðûâàíèÿ
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mov DX,[COMPortBaseAddr]
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inc DX
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mov AL,0
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out DX,AL
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; Ïðîâåðèòü, ÷òî óñòðîéñòâî ïîäêëþ÷åíî è ÿâëÿåòñÿ
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; ìûøüþ òèïà MSMouse
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; Îòêëþ÷èòü ïèòàíèå ìûøè è ïðåðûâàíèÿ
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mov DX,[COMPortBaseAddr]
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add DX,4 ;ðåãèñòð óïðàâëåíèÿ ìîäåìîì
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mov AL,0 ;ñáðîñèòü DTR, RTS è OUT2
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out DX,AL
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; Îæèäàòü 5 "òèêîâ" (0,2 ñ)
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mov ecx,0xffff
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dT_1:
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dec ecx
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cmp ecx,0
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jne dT_1
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mov ecx,0xffff
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; Âêëþ÷èòü ïèòàíèå ìûøè
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mov AL,11b ;óñòàíîâèòü DTR è RTS
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out DX,AL
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; Î÷èñòèòü ðåãèñòð äàííûõ
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mov DX,[COMPortBaseAddr]
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in AL,DX
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; Öèêë îïðîñà ïîðòà
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WaitData:
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; Îæèäàòü åùå 10 "òèêîâ"
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dec ecx
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cmp ecx,0
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je NoMouse
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; Ïðîâåðèòü íàëè÷èå èäåíòèôèêàöèîííîãî áàéòà
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mov DX,[COMPortBaseAddr]
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add DX,5
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in AL,DX
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test AL,1 ;Äàííûå ãîòîâû?
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jz WaitData
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; Ââåñòè äàííûå
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mov DX,[COMPortBaseAddr]
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in AL,DX
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NoMouse:
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ret
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iglobal
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COMPortBaseAddr dw 3F8h
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;COMPortNum dw 0
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endg
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iglobal
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boot_setmouse_type db 'Detected - PS2 mouse',0
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db 'Detected - COM1 mouse',0
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db 'Detected - COM2 mouse',0
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endg
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end_detecting_mouse:
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