269 lines
5.0 KiB
NASM
269 lines
5.0 KiB
NASM
format MS COFF
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include '../../../proc32.inc'
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include '../../../imports.inc'
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struc IOCTL
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{ .handle dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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}
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virtual at 0
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IOCTL IOCTL
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end virtual
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public START
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public version
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DRV_ENTRY equ 1
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DRV_EXIT equ -1
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MT_3B equ 0
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MT_3BScroll equ 3
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MT_5BScroll equ 4
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PS2_DRV_VER equ 1
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section '.flat' code readable align 16
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proc START stdcall, state:dword
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cmp [state], DRV_ENTRY
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jne .fin
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.init:
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call detect_mouse
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test eax,eax
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jnz .exit
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mov [MouseType],MT_3B
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call try_mode_ID3
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test eax,eax
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jnz .stop_try
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mov [MouseType],MT_3BScroll
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call try_mode_ID4
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test eax,eax
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jnz .stop_try
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mov [MouseType],MT_5BScroll
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.stop_try:
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mov bl, 0x20 ; read command byte
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call kbd_cmd
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cmp ah,1
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je .exit
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call kbd_read
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cmp ah,1
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je .exit
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or al, 10b
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push eax
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mov bl, 0x60 ; write command byte
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call kbd_cmd
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cmp ah,1
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je .exit
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pop eax
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call kbd_write
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cmp ah,1
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je .exit
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mov al, 0xF4 ; enable data reporting
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call mouse_cmd
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mov bl, 0xAE ; enable keyboard interface
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call kbd_cmd
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stdcall AttachIntHandler, 12, irq_handler
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stdcall RegService, my_service, service_proc
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ret
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.fin:
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;stdcall DetachIntHandler, 12, irq_handler
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mov bl, 0xA7 ; disable mouse interface
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call kbd_cmd
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xor eax, eax
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ret
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.exit:
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mov bl, 0xA7 ; disable mouse interface
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call kbd_cmd
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mov bl, 0xAE ; enable keyboard interface
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call kbd_cmd
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xor eax, eax
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ret
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endp
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proc service_proc stdcall, ioctl:dword
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mov edi, [ioctl]
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mov eax, [edi+IOCTL.io_code]
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test eax, eax
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jz .getversion
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cmp eax,1
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jz .gettype
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.err:
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or eax, -1
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ret
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.ok:
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xor eax, eax
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ret
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.getversion:
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cmp [edi+IOCTL.out_size], 4
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jb .err
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mov edi, [edi+IOCTL.output]
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mov dword [edi], PS2_DRV_VER ; version of driver
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jmp .ok
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.gettype:
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cmp [edi+IOCTL.out_size], 4
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jb .err
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mov edi, [edi+IOCTL.output]
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mov eax,[MouseType]
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mov dword [edi], eax ; mouse type
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jmp .ok
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endp
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detect_mouse:
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mov bl, 0xAD ; disable keyboard interface
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call kbd_cmd
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cmp ah,1
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je .fail
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mov bl, 0xA8 ; enable mouse interface
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call kbd_cmd
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cmp ah,1
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je .fail
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mov al, 0xFF ; reset
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call mouse_cmd
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jc .fail
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call mouse_read
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jc .fail
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cmp al, 0xAA
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jne .fail ; dead mouse
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; get device ID
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call mouse_read
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jc .fail
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cmp al, 0x00
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jne .fail ; unknown device
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xor eax,eax
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ret
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.fail:
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or eax,-1
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ret
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try_mode_ID3:
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mov al, 0xF3 ;Set Sample Rate
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call mouse_cmd
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jc .fail
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mov al, 0xC8 ;200d
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call mouse_cmd
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jc .fail
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mov al, 0xF3 ;Set Sample Rate
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call mouse_cmd
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jc .fail
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mov al, 0x64 ;100d
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call mouse_cmd
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jc .fail
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mov al, 0xF3 ;Set Sample Rate
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call mouse_cmd
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jc .fail
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mov al, 0x50 ;80d
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call mouse_cmd
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jc .fail
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mov al, 0xF2 ;Get device id
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call mouse_cmd
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jc .fail
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call mouse_read
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jc .fail
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cmp al, 0x03
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jne .fail
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xor eax,eax
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ret
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.fail:
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or eax,-1
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ret
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try_mode_ID4:
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mov al, 0xF3 ;Set Sample Rate
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call mouse_cmd
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jc .fail
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mov al, 0xC8 ;200d
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call mouse_cmd
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jc .fail
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mov al, 0xF3 ;Set Sample Rate
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call mouse_cmd
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jc .fail
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mov al, 0xC8 ;100d
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call mouse_cmd
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jc .fail
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mov al, 0xF3 ;Set Sample Rate
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call mouse_cmd
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jc .fail
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mov al, 0x50 ;80d
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call mouse_cmd
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jc .fail
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mov al, 0xF2 ;Get device id
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call mouse_cmd
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jc .fail
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call mouse_read
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jc .fail
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cmp al, 0x04
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jne .fail
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xor eax,eax
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ret
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.fail:
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or eax,-1
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ret
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include 'ps2m_iofuncs.inc'
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include 'ps2m_irqh.inc'
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section '.data' data readable writable align 16
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version dd 0x00050005
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my_service db 'ps2mouse',0
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;iofuncs data
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mouse_cmd_byte db 0
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mouse_nr_tries db 0
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mouse_nr_resends db 0
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;hid data
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mouse_byte dd 0
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first_byte db 0
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second_byte db 0
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third_byte db 0
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fourth_byte db 0
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;main data
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MouseType dd 0
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XMoving dd 0
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YMoving dd 0
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ZMoving dd 0
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ButtonState dd 0
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;timerTicks dd 0
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