forked from KolibriOS/kolibrios
speed up booting in some configurations
git-svn-id: svn://kolibrios.org@5031 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
CleverMouse
parent
2ecf899269
commit
6a10b418b1
@ -1,7 +1,7 @@
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kbd_read:
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push ecx edx
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mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
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mov ecx,0xfffff ; last 0xffff, new value in view of fast CPU's
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kr_loop:
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in al,0x64
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test al,1
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@ -10,11 +10,6 @@ kbd_read:
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mov ah,1
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jmp kr_exit
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kr_ready:
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push ecx
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mov ecx,32
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kr_delay:
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loop kr_delay
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pop ecx
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in al,0x60
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xor ah,ah
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kr_exit:
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@ -27,40 +22,19 @@ kbd_write:
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push ecx edx
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mov dl,al
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in al,0x60
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mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
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kw_loop:
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mov ecx,0x1ffff
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@@:
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in al,0x64
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test al,2
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jz kw_ok
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loop kw_loop
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jz @f
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loop @b
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mov ah,1
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jmp kw_exit
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kw_ok:
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jmp .nothing
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@@:
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mov al,dl
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out 0x60,al
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mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
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kw_loop3:
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in al,0x64
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test al,2
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jz kw_ok3
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loop kw_loop3
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mov ah,1
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jmp kw_exit
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kw_ok3:
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mov ah,8
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kw_loop4:
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mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
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kw_loop5:
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in al,0x64
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test al,1
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jnz kw_ok4
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loop kw_loop5
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dec ah
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jnz kw_loop4
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kw_ok4:
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xor ah,ah
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kw_exit:
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mov ah,0
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.nothing:
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pop edx ecx
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ret
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@ -73,20 +47,11 @@ kbd_cmd:
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test al,2
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jz c_send
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loop c_wait
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jmp c_error
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mov ah,1
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jmp c_exit
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c_send:
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mov al,bl
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out 0x64,al
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mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
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c_accept:
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in al,0x64
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test al,2
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jz c_ok
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loop c_accept
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c_error:
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mov ah,1
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jmp c_exit
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c_ok:
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xor ah,ah
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c_exit:
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ret
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@ -36,8 +36,27 @@ 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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jne .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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@ -57,49 +76,50 @@ proc START stdcall, state:dword
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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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; 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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stdcall AttachIntHandler, 12, irq_handler, dword 0
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stdcall AttachIntHandler, 12, irq_handler, 0
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stdcall RegService, my_service, service_proc
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ret
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.fin:
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popf
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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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.nothing:
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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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; 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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@ -137,11 +157,6 @@ 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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@ -161,6 +176,7 @@ detect_mouse:
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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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@ -882,6 +882,7 @@ include "detect/vortex86.inc" ; Vortex86 SoC detection code
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mov esi, 250 ; wait 1/4 a second
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call delay_ms
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rdtsc
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sti
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sub eax, ecx
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xor edx, edx
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@ -949,26 +950,6 @@ include "detect/vortex86.inc" ; Vortex86 SoC detection code
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stdcall map_page, tss._io_map_1, \
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[SLOT_BASE+256+APPDATA.io_map+4], PG_MAP
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; LOAD FIRST APPLICATION
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cmp byte [launcher_start], 1 ; Check if starting LAUNCHER is selected on blue screen (1 = yes)
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jnz first_app_found
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cli
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mov ebp, firstapp
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call fs_execute_from_sysdir
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test eax, eax
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jns first_app_found
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mov esi, boot_failed
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call boot_log
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mov eax, 0xDEADBEEF ; otherwise halt
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hlt
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first_app_found:
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cli
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; SET KEYBOARD PARAMETERS
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mov al, 0xf6 ; reset keyboard, scan enabled
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call kb_write_wait_ack
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@ -1008,6 +989,24 @@ endg
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call boot_log
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call setmouse
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; LOAD FIRST APPLICATION
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cmp byte [launcher_start], 1 ; Check if starting LAUNCHER is selected on blue screen (1 = yes)
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jnz first_app_found
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cli
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mov ebp, firstapp
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call fs_execute_from_sysdir
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test eax, eax
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jns first_app_found
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mov esi, boot_failed
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call boot_log
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mov eax, 0xDEADBEEF ; otherwise halt
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hlt
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first_app_found:
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; START MULTITASKING
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; A 'All set - press ESC to start' messages if need
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