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Rev 3711 Rev 3741
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struct mouse_device_data
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struct mouse_device_data
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buttons         dd      ?       ; buttons that are currently pressed
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buttons         dd      ?       ; buttons that are currently pressed
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dx              dd      ?       ; current x moving
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dx              dd      ?       ; current x moving
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dy              dd      ?       ; current y moving
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dy              dd      ?       ; current y moving
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wheel           dd      ?       ; current wheel moving
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wheel           dd      ?       ; current wheel moving
- 
 
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hwheel          dd      ?
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ends
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ends
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; This procedure is called when HID layer detects a new mouse.
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; This procedure is called when HID layer detects a new mouse.
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; in: ebx -> device_data from USB layer, edi -> collection
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; in: ebx -> device_data from USB layer, edi -> collection
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; Zero all variables describing the current state.
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; Zero all variables describing the current state.
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        mov     [edi+mouse_device_data.buttons], 0
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        mov     [edi+mouse_device_data.buttons], 0
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        mov     [edi+mouse_device_data.dx], 0
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        mov     [edi+mouse_device_data.dx], 0
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        mov     [edi+mouse_device_data.dy], 0
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        mov     [edi+mouse_device_data.dy], 0
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        mov     [edi+mouse_device_data.wheel], 0
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        mov     [edi+mouse_device_data.wheel], 0
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        mov     [edi+mouse_device_data.hwheel], 0
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        ret
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        ret
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endp
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endp
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; This procedure is called when HID layer processes every non-empty array field group.
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; This procedure is called when HID layer processes every non-empty array field group.
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        jz      .x
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        jz      .x
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        cmp     ecx, USAGE_GD_Y
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        cmp     ecx, USAGE_GD_Y
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        jz      .y
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        jz      .y
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        cmp     ecx, USAGE_GD_WHEEL
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        cmp     ecx, USAGE_GD_WHEEL
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        jz      .wheel
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        jz      .wheel
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        cmp     ecx, 0xC0238
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        jz      .hwheel
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        sub     ecx, USAGE_BUTTON_PAGE + 1
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        sub     ecx, USAGE_BUTTON_PAGE + 1
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        jb      .unclaimed
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        jb      .unclaimed
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        cmp     ecx, 32
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        cmp     ecx, 32
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        jae     .unclaimed
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        jae     .unclaimed
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; 2. This is a button.
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; 2. This is a button.
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        test    byte [esi+report_field_group.flags], HID_FIELD_RELATIVE
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        test    byte [esi+report_field_group.flags], HID_FIELD_RELATIVE
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        jz      .unclaimed
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        jz      .unclaimed
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        neg     edx
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        neg     edx
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        mov     [edi+mouse_device_data.wheel], edx
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        mov     [edi+mouse_device_data.wheel], edx
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        ret
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        ret
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.hwheel:
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        test    byte [esi+report_field_group.flags], HID_FIELD_RELATIVE
- 
 
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        jz      .unclaimed
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        mov     [edi+mouse_device_data.hwheel], edx
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        ret
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endp
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endp
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; This procedure is called when HID layer ends processing a new input packet
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; This procedure is called when HID layer ends processing a new input packet
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; from a mouse.
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; from a mouse.
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        stdcall SetMouseData, \
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        stdcall SetMouseData, \
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                [edi+mouse_device_data.buttons], \
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                [edi+mouse_device_data.buttons], \
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                [edi+mouse_device_data.dx], \
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                [edi+mouse_device_data.dx], \
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                [edi+mouse_device_data.dy], \
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                [edi+mouse_device_data.dy], \
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                [edi+mouse_device_data.wheel], \
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                [edi+mouse_device_data.wheel], \
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                0
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                [edi+mouse_device_data.hwheel]
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        ret
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        ret
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endp
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endp