277 lines
5.7 KiB
NASM
277 lines
5.7 KiB
NASM
; standard driver stuff; version of driver model = 5
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format PE DLL native 0.05
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DEBUG 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 writable executable
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data fixups
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end data
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include '../../../struct.inc'
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include '../../../macros.inc'
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include '../../../proc32.inc'
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include '../../../peimport.inc'
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entry START
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proc START c, state:dword, cmdline:dword
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cmp [state], DRV_ENTRY
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je .init
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cmp [state], DRV_EXIT
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je .fini
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jmp .nothing
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.init:
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; disable keyboard and mouse interrupts
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; keyboard IRQ handler can interfere badly otherwise
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pushf
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cli
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mov bl, 0x20 ; read command byte
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call kbd_cmd
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test ah,ah
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jnz .fin
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call kbd_read
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test ah,ah
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jnz .fin
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popf
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and al, 0xFC ; disable interrupts
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or al, 0x10 ; disable keyboard
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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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pop eax
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call kbd_write
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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 al, 0xF4 ; enable data reporting
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call mouse_cmd
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; enable keyboard and mouse interrupts
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mov bl, 0x20 ; read command byte
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call kbd_cmd
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call kbd_read
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or al, 3 ; enable interrupts
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and al, not 0x10 ; enable keyboard
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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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pop eax
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call kbd_write
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invoke AttachIntHandler, 12, irq_handler, 0
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invoke RegService, my_service, service_proc
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ret
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.fin:
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popf
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;invoke 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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.nothing:
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xor eax, eax
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ret
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.fini:
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mov al, 0xF5
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call mouse_cmd
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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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; enable keyboard interrupt, leave mouse interrupt disabled
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mov bl, 0x20 ; read command byte
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call kbd_cmd
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call kbd_read
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or al, 1 ; enable keyboard interrupt
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and al, not 0x10 ; enable keyboard
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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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pop eax
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call kbd_write
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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, 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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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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