forked from KolibriOS/kolibrios
Fixed PS/2 mouse detection procedure, timeouts.
git-svn-id: svn://kolibrios.org@121 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan Poddubny
parent
28e25be617
commit
857f757f85
@ -1,112 +1,117 @@
|
||||
; for information on PS2 mouse/keyboard programming
|
||||
; refer to http://www.computer-engineering.org/ps2mouse/
|
||||
; and http://www.computer-engineering.org/ps2keyboard/
|
||||
; respectively
|
||||
|
||||
MouseSearch_PS2:
|
||||
jmp .begin
|
||||
jmp MouseSearch_PS2_begin
|
||||
|
||||
.kb_cmd_c:
|
||||
mouse_error equ MouseSearch_PS2_begin.error
|
||||
|
||||
kb_cmd_c:
|
||||
call kb_cmd
|
||||
.check:
|
||||
cmp ah, 1
|
||||
je @f
|
||||
ret
|
||||
@@:
|
||||
add esp, 4 ; return address
|
||||
jmp .DataInputError
|
||||
jmp check_kbd
|
||||
|
||||
.kb_write_c:
|
||||
kb_write_c:
|
||||
call kb_write
|
||||
jmp .check
|
||||
jmp check_kbd
|
||||
|
||||
.kb_read_c:
|
||||
kb_read_c:
|
||||
call kb_read
|
||||
jmp .check
|
||||
;jmp check_kbd
|
||||
|
||||
;--------------------------------------------
|
||||
.begin:
|
||||
check_kbd:
|
||||
cmp ah, 1
|
||||
je mouse_error
|
||||
ret
|
||||
|
||||
uglobal
|
||||
mouse_cmd_byte db 0
|
||||
mouse_nr_tries db 0
|
||||
mouse_nr_resends db 0
|
||||
|
||||
mouse_error_esp dd 0
|
||||
endg
|
||||
|
||||
|
||||
mouse_cmd:
|
||||
mov [mouse_cmd_byte], al
|
||||
mov [mouse_nr_resends], 5
|
||||
.resend:
|
||||
mov bl, 0xd4
|
||||
call kb_cmd_c
|
||||
mov al, [mouse_cmd_byte]
|
||||
call kb_write_c
|
||||
|
||||
call mouse_read
|
||||
|
||||
cmp al, 0xFA ; ack
|
||||
jne .noack
|
||||
ret
|
||||
.noack:
|
||||
cmp al, 0xFE ; resend
|
||||
jne .noresend
|
||||
dec [mouse_nr_resends]
|
||||
jnz .resend
|
||||
.noresend:
|
||||
jmp mouse_error
|
||||
|
||||
|
||||
mouse_read:
|
||||
mov [mouse_nr_tries], 100
|
||||
.repeat:
|
||||
call kb_read
|
||||
cmp ah, 1
|
||||
jne .fin
|
||||
mov esi, 10
|
||||
call delay_ms
|
||||
dec [mouse_nr_tries]
|
||||
jnz .repeat
|
||||
jmp mouse_error
|
||||
.fin:
|
||||
ret
|
||||
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
MouseSearch_PS2_begin:
|
||||
pushad
|
||||
|
||||
mov [mouse_error_esp], esp
|
||||
|
||||
mov bl, 0xAD ; disable keyboard interface
|
||||
call .kb_cmd_c
|
||||
call kb_cmd_c
|
||||
|
||||
mov bl, 0xa8 ; enable mouse interface
|
||||
call .kb_cmd_c
|
||||
mov bl, 0xA8 ; enable mouse interface
|
||||
call kb_cmd_c
|
||||
|
||||
mov bl, 0xd4 ; to mouse
|
||||
call .kb_cmd_c
|
||||
mov al, 0xFF ; reset
|
||||
call .kb_write_c
|
||||
call .kb_read_c
|
||||
cmp al, 0xFA ; ack
|
||||
jne .no_ack
|
||||
call mouse_cmd
|
||||
|
||||
; now the mouse is in Reset Mode
|
||||
; get the Basic Assurance Test completion code
|
||||
call .kb_read_c
|
||||
call mouse_read
|
||||
cmp al, 0xAA
|
||||
jne .dead_mouse
|
||||
jne .error ; dead mouse
|
||||
|
||||
; get device ID
|
||||
call .kb_read_c
|
||||
call mouse_read
|
||||
cmp al, 0x00
|
||||
jne .unknown_device
|
||||
jne .error ; unknown device
|
||||
|
||||
; reset completed successfully
|
||||
|
||||
; enable mouse interrupt - IRQ12
|
||||
mov bl, 0x20 ; read command byte
|
||||
call .kb_cmd_c
|
||||
call .kb_read_c
|
||||
or al, 10b ; set mouse IRQ bit
|
||||
call kb_cmd_c
|
||||
call kb_read_c
|
||||
or al, 10b
|
||||
push eax
|
||||
mov bl, 0x60 ; write command byte
|
||||
call .kb_cmd_c
|
||||
call kb_cmd_c
|
||||
pop eax
|
||||
call .kb_write_c
|
||||
call kb_write_c
|
||||
|
||||
mov bl, 0xd4 ; to mouse
|
||||
call .kb_cmd_c
|
||||
mov al, 0xf4 ; enable data reporting
|
||||
call .kb_write_c
|
||||
call .kb_read_c
|
||||
cmp al, 0xFA
|
||||
jne .no_ack
|
||||
|
||||
; jmp @f
|
||||
;.set_sample_rate:
|
||||
; push eax
|
||||
; mov bl, 0xd4 ; to mouse
|
||||
; call .kb_cmd_c
|
||||
; mov al, 0xF3 ; set sample rate
|
||||
; call .kb_write_c
|
||||
; call .kb_read_c ; ack
|
||||
; pop eax
|
||||
; call .kb_write_c
|
||||
; call .kb_read_c ; ack
|
||||
; @@:
|
||||
; mov eax, 200
|
||||
; call .set_sample_rate
|
||||
; mov eax, 100
|
||||
; call .set_sample_rate
|
||||
; mov eax, 80
|
||||
; call .set_sample_rate
|
||||
; mov bl, 0xd4
|
||||
; call .kb_cmd_c
|
||||
; mov al, 0xF2 ; read device type
|
||||
; call .kb_write_c
|
||||
; call .kb_read_c ; ack
|
||||
; call .kb_read_c ; mouse ID
|
||||
; cmp al, 0x03
|
||||
; jne .no_scroll
|
||||
; mov [ps2_mouse_scroll], 1
|
||||
; ; it'll send 4-byte packets instead of 3-byte ones
|
||||
; ; the last byte of a packet represents z-axis movement
|
||||
; .no_scroll:
|
||||
mov al, 0xF4 ; enable data reporting
|
||||
call mouse_cmd
|
||||
|
||||
mov [ps2_mouse_detected], 1
|
||||
mov bl, 0xAE ; enable keyboard interface
|
||||
call .kb_cmd_c
|
||||
call kb_cmd
|
||||
|
||||
mov esi, boot_setmouse_type
|
||||
call boot_log
|
||||
@ -114,10 +119,8 @@ MouseSearch_PS2:
|
||||
jmp .finish
|
||||
|
||||
|
||||
.DataInputError:
|
||||
.no_ack:
|
||||
.dead_mouse:
|
||||
.unknown_device:
|
||||
.error:
|
||||
mov esp, [mouse_error_esp] ; clear stack frame
|
||||
mov [ps2_mouse_detected], 0
|
||||
mov bl, 0xA7 ; disable mouse interface
|
||||
call kb_cmd
|
||||
|
||||
Loading…
Reference in New Issue
Block a user