Subversion Repositories Kolibri OS

;// 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,[0x80000+eax+APPDATA.keyboard_mode]

       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]

   @@:

        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

        ret

set_lights:

       mov   al,0xED

       call  kb_write

       mov   al,[kb_lights]

       call  kb_write

       ret

;// mike.dld ]