;// mike.dld [
VKEY_LSHIFT = 0000000000000001b
VKEY_RSHIFT = 0000000000000010b
VKEY_LCONTROL = 0000000000000100b
VKEY_RCONTROL = 0000000000001000b
VKEY_LALT = 0000000000010000b
VKEY_RALT = 0000000000100000b
VKEY_CAPSLOCK = 0000000001000000b
VKEY_NUMLOCK = 0000000010000000b
VKEY_SCRLOCK = 0000000100000000b
VKEY_SHIFT = 0000000000000011b
VKEY_CONTROL = 0000000000001100b
VKEY_ALT = 0000000000110000b
uglobal
align 4
kb_state dd 0
ext_code db 0
keyboard_mode db 0
keyboard_data db 0
altmouseb db 0
ctrl_alt_del db 0
kb_lights db 0
align 4
hotkey_scancodes rd 256 ; we have 256 scancodes
hotkey_list rd 256*4 ; max 256 defined hotkeys
hotkey_buffer rd 120*2 ; buffer for 120 hotkeys
endg
iglobal
hotkey_tests dd hotkey_test0
dd hotkey_test1
dd hotkey_test2
dd hotkey_test3
dd hotkey_test4
hotkey_tests_num = 5
endg
hotkey_test0:
test al, al
setz al
ret
hotkey_test1:
test al, al
setnp al
ret
hotkey_test2:
cmp al, 3
setz al
ret
hotkey_test3:
cmp al, 1
setz al
ret
hotkey_test4:
cmp al, 2
setz al
ret
hotkey_do_test:
push eax
mov edx, [kb_state]
shr edx, cl
add cl, cl
mov eax, [eax+4]
shr eax, cl
and eax, 15
cmp al, hotkey_tests_num
jae .fail
xchg eax, edx
and al, 3
call [hotkey_tests + edx*4]
cmp al, 1
pop eax
ret
.fail:
stc
pop eax
ret
align 4
irq1:
save_ring3_context
mov ax, os_data
mov ds, ax
mov es, ax
movzx eax,word[0x3004] ; top window process
movzx eax,word[0xC400+eax*2]
shl eax,8
mov al,[0x800B4+eax]
mov [keyboard_mode],al
in al,0x60
mov [keyboard_data],al
; ch = scancode
; cl = ext_code
; bh = 0 - normal key
; bh = 1 - modifier (Shift/Ctrl/Alt)
; bh = 2 - extended code
mov ch,al
cmp al,0xE0
je @f
cmp al,0xE1
jne .normal_code
@@:
mov bh, 2
mov [ext_code], al
jmp .writekey
.normal_code:
mov cl, 0
xchg cl, [ext_code]
and al,0x7F
mov bh, 1
@@: cmp al,0x2A
jne @f
cmp cl,0xE0
je .writekey
mov eax,VKEY_LSHIFT
jmp .modifier
@@: cmp al,0x36
jne @f
cmp cl,0xE0
je .writekey
mov eax,VKEY_RSHIFT
jmp .modifier
@@: cmp al,0x38
jne @f
mov eax, VKEY_LALT
test cl, cl
jz .modifier
mov al, VKEY_RALT
jmp .modifier
@@: cmp al,0x1D
jne @f
mov eax, VKEY_LCONTROL
test cl, cl
jz .modifier
mov al, VKEY_RCONTROL
cmp cl, 0xE0
jz .modifier
mov [ext_code], cl
jmp .writekey
@@: cmp al,0x3A
jne @f
mov bl,4
mov eax,VKEY_CAPSLOCK
jmp .no_key.xor
@@: cmp al,0x45
jne @f
test cl, cl
jnz .writekey
mov bl,2
mov eax,VKEY_NUMLOCK
jmp .no_key.xor
@@: cmp al,0x46
jne @f
mov bl,1
mov eax,VKEY_SCRLOCK
jmp .no_key.xor
@@:
test ch,ch
js .writekey
movzx eax,ch ; plain key
mov bl,[keymap+eax]
mov edx,[kb_state]
test dl,VKEY_CONTROL ; ctrl alt del
jz .noctrlaltdel
test dl,VKEY_ALT
jz .noctrlaltdel
cmp ch,53h
jne .noctrlaltdel
mov [ctrl_alt_del],1
.noctrlaltdel:
test dl,VKEY_CONTROL ; ctrl on ?
jz @f
sub bl,0x60
@@: test dl,VKEY_SHIFT ; shift on ?
jz @f
mov bl,[keymap_shift+eax]
@@: test dl,VKEY_ALT ; alt on ?
jz @f
mov bl,[keymap_alt+eax]
; alt mouse ?
xor edx,edx
cmp bl,178
jnz .no_alt.up
mov edx,5*65536
jmp .mouse.change
.no_alt.up:
cmp bl,177
jnz .no_alt.down
mov edx,251*65536
jmp .mouse.change
.no_alt.down:
cmp bl,176
jnz .no_alt.left
mov edx,251*256
jmp .mouse.change
.no_alt.left:
cmp bl,179
jnz .no_alt.right
mov edx,5*256
jmp .mouse.change
.no_alt.right:
cmp bl,' '
jne @f
xor [altmouseb],1
.mouse.change:
mov byte[0xF604],1; ps2 data
mov byte[0xFB00],0; ps2 chunk count
mov word[0x2E0000+4096*12],3; mouse data count
mov dl,[altmouseb]
mov [0x2E0000+4096*12+0x10],edx
mov bl,0
@@:
mov bh, 0
jmp .writekey
.modifier:
test ch, ch
js .modifier.up
or [kb_state], eax
jmp .writekey
.modifier.up:
not eax
and [kb_state], eax
jmp .writekey
.no_key.xor:
mov bh, 0
test ch, ch
js .writekey
xor [kb_state], eax
xor [kb_lights], bl
call set_lights
.writekey:
; test for system hotkeys
movzx eax, ch
cmp bh, 1
ja .nohotkey
jb @f
xor eax, eax
@@:
mov eax, [hotkey_scancodes + eax*4]
.hotkey_loop:
test eax, eax
jz .nohotkey
mov cl, 0
call hotkey_do_test
jc .hotkey_cont
mov cl, 2
call hotkey_do_test
jc .hotkey_cont
mov cl, 4
call hotkey_do_test
jnc .hotkey_found
.hotkey_cont:
mov eax, [eax]
jmp .hotkey_loop
.hotkey_found:
mov eax, [eax+8]
; put key in buffer for process in slot eax
mov edi, hotkey_buffer
@@:
cmp dword [edi], 0
jz .found_free
add edi, 8
cmp edi, hotkey_buffer+120*8
jb @b
; no free space - replace first entry
mov edi, hotkey_buffer
.found_free:
mov [edi], eax
movzx eax, ch
cmp bh, 1
jnz @f
xor eax, eax
@@:
mov [edi+4], ax
mov eax, [kb_state]
mov [edi+6], ax
jmp .exit.irq1
.nohotkey:
cmp [keyboard_mode],0 ; return from keymap
jne .scancode
test bh, bh
jnz .exit.irq1
test bl, bl
jz .exit.irq1
jmp .dowrite
.scancode:
mov bl, ch
.dowrite:
movzx eax,byte[0xF400]
cmp al,120
jae .exit.irq1
inc eax
mov [0xF400],al
mov [0xF400+eax],bl
.exit.irq1:
mov [check_idle_semaphore],5
mov al,0x20 ; ready for next irq
out 0x20,al
restore_ring3_context
iret
set_lights:
mov al,0xED
call kb_write
mov al,[kb_lights]
call kb_write
ret
;// mike.dld ]