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regs.x.ax = 0xb10b; /* set PCI Cfg. Byte */
regs.x.di = 0x0068; /* get CR.0x68 */
regs.h.cl = 0x02; /* WDT is WDT mode, WDT enable, Unlock*/
__dpmi_int(0x1a, ®s);
} int main(){
int i,j;
unsigned char k;
Search_PCI_WDT();
prepare_access_above_1mb();
Show_Select();
do
{
do
i = getkey();
while ((i <= KEY_1) && (i >= KEY_3));
switch(i)
{
case KEY_1:
enable_wdt();
break;
case KEY_2:
reload_wdt();
break;
case KEY_3:
disable_wdt();
return(0);
break;
}
Show_Select();
}
while(1);
}
2.19 GPIO Information
; For PPAP-3714 GPIO testing
;
; By Frank Hsu , 06/03/2004
;
; GPIO on PPAP-3714
; PPAP-3714 J11_Pin1 =GPIO4:from HR_GPIO43
; J11_Pin3 =GPIO3:from HR_GPIO42
; J11_Pin5 =GPIO2:from HR_GPIO41
; J11_Pin7 =GPIO1:from HR_GPIO40
;
;
; J11_Pin9 =VCC
; J11_Pin10=GND
; Programming Guide :
;
; PG_Step1 : Enable GPIO IO function and get GPIOBASE, then save to
; ECX_Bit[31..16]
;
; How to program GPIO[40,41,42,43]
; -------------------------------------------------------
; Get GPIOBASE =: B0:D31:F0:Offset[58..5Bh] ;(and let bit0 = 0 )
; GPIO_CNTL =: B0:D31:F0:Offset_5Ch_bit4P1 ;Enable ICH4 GPIO
;
; GPIO_USE_SEL2=:GPIOBASE + 30h, Bit[11..8]P[1,1,1,1]
; GP_IO_SEL2 =:GPIOBASE + 34h, Bit[11..8],1-->Input,0-->Output
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; GP_LVL2 =:GPIOBASE + 38h, Bit[11..8],Input: readback,
; output:1:high,0:low
; GPIO40 --> bit8,
; GPIO41 --> bit9,
; GPIO42 --> bit10,
; GPIO43 --> bit11,
;
; Let GPIO40,41,42,43 as GPIO pins by
; GPIO_USE_SEL2 (=:(GPIOBASE + 30h))_bit[11..8]P[1,1,1,1];
;
; Define GPIO as input or output pin, 1=input pin, 0=output pin
; GP_IO_SEL2 (=:(GPIOBASE + 34h))_bit[11..8]P[0/1,0/1,0/1,0/1];
;
; Output value or read status ?
; GP_LVL2 (=:(GPIOBASE + 38h))_bit[11..8];
; Output value When output pin defined
; Read returned status when input pin defined
.MODEL tiny
.386
.STACK 200h
.data
PROMP1 DB'PORTWELL PPAP-3714 GPIO,3714GPIO.exe, V1.00 06-03-2004,All rights reserved.$'
PROMP1_1 DB ' For PEB-3714 GPIO test .',13,10,'$'
PROMP_2_CR_LF db 0Dh, 0Ah,0Dh, 0Ah, '$'
PROMP_Str1 db ' PPAP-3714 J11_Pin1=GPIO4:from HR-ICH_GPIO43 ',0dh,0ah,'$'
PROMP_Str2 db ' J11_Pin3=GPIO3:from HR-ICH_GPIO42 ',0dh,0ah,'$'
PROMP_Str3 db ' J11_Pin5=GPIO2:from HR-ICH_GPIO41 ',0dh,0ah,'$'
PROMP_Str4 db ' J11_Pin7=GPIO1:from HR-ICH_GPIO40 ',0dh,0ah,'$'
PROMP_Str5 db ' ',0dh,0ah,'$'
PROMP_Str6 db ' Put a jumper cap on J11-pin1 and 3 , another jumper cap on pin5 and 7',0dh,0ah,'$'
PROMP_anykey db 0dh,0ah,' Ready ? If yes , then Press any key to start test ....... $'
PROMP_err1 db 0dh,0ah,'"GPO43,41 write 1,1 to GPI42,40" failed.',0dh,0ah,'$'
PROMP_err2 db 0dh,0ah,'"GPO43,41 write 0,0 to GPI42,40" failed.',0dh,0ah,'$'
PROMP_err3 db 0dh,0ah,'"GPO42,40 write 1,1 to GPI43,41" failed.',0dh,0ah,'$'
PROMP_err4 db 0dh,0ah,'"GPO42,40 write 0,0 to GPI43,41" failed.',0dh,0ah,'$'
PROMP_TEST_OK db ' ^_^ ..... PPAP-3714 GPIO test ( 3714GPIO.EXE ) OK ..... ^_^',0dh,0ah,'$'
PROMP_TEST_fail db ' <<..... PPAP-3714 GPIO test ( 3714GPIO.EXE ) FAIL .....>>',0dh,0ah,'$'
PROMP_Qkey db 0dh,0ah,'Press "Q" key to stop test and return to DOS; or other key will go on next test.$'
GPIO_USE_SEL2_OFFSET db 30h ; The offset value from GPIOBASE
GP_IO_SEL2_OFFSET db 34h ; The offset value from GPIOBASE
GP_LVL2_OFFSET db 38h ; The offset value from GPIOBASE
; ECX_bit[31..16] save GPIOBASE ( B0:D31:F0:Offset[58..5Bh] )
.code programstart:
mov ax,@data
mov ds,ax
lea dx,PROMP_2_CR_LF
mov ah,09h
int 21h
lea dx,PROMP1
mov ah,09h
int 21h
lea dx,PROMP_2_CR_LF
mov ah,09h
int 21h
lea dx,PROMP1_1
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mov ah,09h
int 21h
lea dx,PROMP_2_CR_LF
mov ah,09h
int 21h
lea dx,PROMP_Str1
mov ah,09h
int 21h
lea dx,PROMP_Str2
mov ah,09h
int 21h
lea dx,PROMP_Str3
mov ah,09h
int 21h
lea dx,PROMP_Str4
mov ah,09h
int 21h
lea dx,PROMP_Str5
mov ah,09h
int 21h
lea dx,PROMP_Str6
mov ah,09h
int 21h
lea dx,PROMP_anykey ; ready to go ?
mov ah,09h
int 21h
xor al,al
WAIT_KB_0:
mov ah,1
int 21h
cmp al,0
je WAIT_KB_0
lea dx,PROMP_2_CR_LF
mov ah,09h
int 21h
mov edx,00000000h ; Error flag in EDX_BIT[16..19], 0=ok, 1=failed
;
; PG_Step1 : Enable GPIO IO function and get GPIOBASE, then save to
; ECX_Bit[31..16]
; ==================================================== 1_start
; Get GPIOBASE Base Address , and save to ECX_bit[31..16]
mov dx,0CF8h
mov eax,8000F85Ch ; B0:D31:F0:Offset_5Ch
out dx,eax
mov dx,0CFCh
in eax,dx
or al,10h ; 5Ch_Bit4P1 to Enable GPIO
out dx,eax
mov dx,0CF8h ; Get GPIOBASE
mov eax,8000F858h ; B0:D31:F0:Offset_58h
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out dx,eax
mov dx,0CFCh
in eax,dx
and al,0feh ; bit 0 cleared to 0.
rol eax,10h
mov ecx,eax ; Save GPIOBASE to ECX[31..16]
; Get GPIOBASE Base Address , and save to ECX_bit[31..16]
; ==================================================== 1_end
; Testing way :
; --- t1
; GPO43 Write 1 to GPI42 , GPI42 = 1 ? ,if yes, pass ; if no, failed
; GPO41 Write 1 to GPI40 , GPI40 = 1 ? ,if yes, pass ; if no, failed
; --- t2
; GPO43 Write 0 to GPI42 , GPI42 = 0 ? ,if yes, pass ; if no, failed
; GPO41 Write 0 to GPI40 , GPI40 = 0 ? ,if yes, pass ; if no, failed
;
; --- t3
; GPO42 Write 1 to GPI43 , GPI43 = 1 ? ,if yes, pass ; if no, failed
; GPO40 Write 1 to GPI41 , GPI41 = 1 ? ,if yes, pass ; if no, failed
; --- t4
; GPO42 Write 0 to GPI43 , GPI43 = 0 ? ,if yes, pass ; if no, failed
; GPO40 Write 0 to GPI41 , GPI41 = 0 ? ,if yes, pass ; if no, failed
;
rol ecx,10h ; Restore GPIOBASE from ECX[31..16] to ECX[15..0]
; Let GPIO43,42,41,40 as GPIO pins by
; GPIO_USE_SEL2 (=:(GPIOBASE + 30h))_bit[11..8]P[1,1,1,1];
xor bh,bh
mov bl,GPIO_USE_SEL2_OFFSET ; Define as GPIO pins
mov dx,cx ; GPIOBASE
add dx,bx ; GPIO_USE_SEL2
inc dx ;
in al,dx ; Read first
or al,0fh ; Set GPIO40~43 as GPIO pins
out dx,al
; --- for t1 and t2 define GPO43,41 ; GPI42,40
; Define GPIO as input or output pin 1=input pin , 0=output pin
; GP_IO_SEL2 (=:(GPIOBASE + 34h))_bit[11..8]P[0,1,0,1];
mov bl,GP_IO_SEL2_OFFSET ; Define GPO,GPI pin
mov dx,cx ; GPIOBASE
add dx,bx ; GP_IO_SEL2
inc dx ;
in al,dx ; Read First
and al,0F0h ; GPO43,41 , GPI42,40
or al,05h ;
out dx,al
; ---- t1 start
; GPO43 Write 1 to GPI42 , GPI42 = 1 ? ,if yes, pass ; if no, failed
; GPO41 Write 1 to GPI40 , GPI40 = 1 ? ,if yes, pass ; if no, failed
; Output value or read status ?
; GP_LVL2 (=:(GPIOBASE + 38h))_bit[3..0];
; Output value When output pin defined
; Read returned status when input pin defined
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mov bl,GP_LVL2_OFFSET ; GPO43 Write 1 to GPI42
mov dx,cx ; GPO41 write 1 to GPI40
add dx,bx ; GP_LVL2
inc dx ;
in al,dx ; Read First
or al,0Ah ;
out dx,al
call IODELAY ; io delay
in al,dx
and al,05h ; Mask bit2,0 ( GPI42,40 )
cmp al,05h
je next_test1 ; okay , go on test
; no , error message display
lea dx,promp_err1
mov ah,09h
int 21h
ror edx,10h ; error falg EDX_Bit16 , 1 --> Error happened
or dl,01h
rol edx,10h
call KB_Wait
next_test1 :
; ---- t1 end
; ---- t2 start
; GPO43 Write 0 to GPI42 , GPI42 = 0 ? ,if yes, pass ; if no, failed
; GPO41 Write 0 to GPI40 , GPI40 = 0 ? ,if yes, pass ; if no, failed
; Output value or read status ?
; GP_LVL2 (=:(GPIOBASE + 38h))_bit[11..8];
; Output value When output pin defined
; Read returned status when input pin defined
mov bl,GP_LVL2_OFFSET ; GPO43 Write 0 to GPI42
mov dx,cx ; GPO41 write 0 to GPI40
add dx,bx ; GP_LVL2
inc dx ;
in al,dx ; Read First
and al,0F5h ;
call IODELAY ; io delay
out dx,al
call IODELAY ; io delay
in al,dx
and al,05h ; Mask bit 2,0
cmp al,00h
je next_test2 ; okay , go on test
; no , error message display
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lea dx,promp_err2
mov ah,09h
int 21h
ror edx,10h ; error falg EDX_Bit17 , 1 --> Error happened
or dl,02h
rol edx,10h
call KB_Wait
next_test2 :
; ---- t2 end
; --- for t3 and t4 define GPI43,41 ; GPO42,40
; Define GPIO as input or output pin 1=input pin , 0=output pin
; GP_IO_SEL2 (=:(GPIOBASE + 34h))_bit[11..8]P[1,0,1,0];
mov bl,GP_IO_SEL2_OFFSET ; Define GPO,GPI pin
mov dx,cx
add dx,bx ; GP_IO_SEL2
inc dx ;
in al,dx ; Read First
and al,0F0h ; GPI43,41 , GPO42,40
or al,0Ah ;
call IODELAY ; io delay
out dx,al
; ---- t3 start
; GPO42 Write 1 to GPI43 , GPI43 = 1 ? ,if yes, pass ; if no, failed
; GPO40 Write 1 to GPI41 , GPI41 = 1 ? ,if yes, pass ; if no, failed
; Output value or read status ?
; GP_LVL2 (=:(GPIOBASE + 38h))_bit[11..8];
; Output value When output pin defined
; Read returned status when input pin defined
mov bl,GP_LVL2_OFFSET ; GPO42 Write 1 to GPI43
mov dx,cx ; GPO40 write 1 to GPI41
add dx,bx ; GP_LVL2
inc dx ;
in al,dx ; Read First
or al,05h ;
call IODELAY ; io delay
out dx,al
call IODELAY ; io delay
in al,dx
and al,0ah ; Mask bit3,1 GPI43,41
cmp al,0ah
je next_test3 ; okay , go on test
; no , error message display
lea dx,promp_err3
mov ah,09h
int 21h
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ror edx,10h ; error falg EDX_Bit18 , 1 --> Error happened
or dl,04h
rol edx,10h
call KB_Wait
next_test3 :
; ---- t3 end
; ---- t4 start
; GPO42 Write 0 to GPI43 , GPI43 = 0 ? ,if yes, pass ; if no, failed
; GPO40 Write 0 to GPI41 , GPI41 = 0 ? ,if yes, pass ; if no, failed
; Output value or read status ?
; GP_LVL2 (=:(GPIOBASE + 38h))_bit[11..8];
; Output value When output pin defined
; Read returned status when input pin defined
mov bl,GP_LVL2_OFFSET ; GPO42 Write 0 to GPI43
mov dx,cx ; GPO40 write 0 to GPI41
add dx,bx ; GP_LVL2
inc dx ;
in al,dx ; Read First
and al,0FAh ;
call IODELAY ; io delay
out dx,al
call IODELAY ; io delay
in al,dx
and al,0ah ; Mask bit 3,1
cmp al,00h
je test_end ; okay , end of test
; no , error message display
lea dx,promp_err4
mov ah,09h
int 21h
ror edx,10h ; error falg EDX_Bit19 , 1 --> Error happened
or dl,08h
rol edx,10h
; ---- t4 end
test_end :
ror edx,10h
cmp dl,00h
je test_ok
test_fail :
lea dx,PROMP_2_CR_LF
mov ah,09h
int 21h
lea dx,promp_TEST_fail
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mov ah,09h
int 21h
jmp return_to_dos
test_ok :
lea dx,promp_TEST_OK
mov ah,09h
int 21h
ror ecx,10h ; ECX[15..0] to ECX[31..16]
; Restore GPIOBASE to ECX[31..16] return_to_dos :
mov ah,4ch ; Return to DOS
int 21h
IODELAY PROC near
push ax
push dx
mov dx,0edh
in al,dx
jmp $+2
mov dx,0edh
in al,dx
pop dx
pop ax
ret
IODELAY ENDP
KB_wait PROC near
push ax
push bx
push cx
push dx
lea dx,PROMP_Qkey
mov ah,9 ; Display "Q" key prompt
int 21h
xor al,al
WAIT_KB:
mov ah,1
int 21h
cmp al,0
je WAIT_KB
cmp al,51h ; "Q" pressed ?
je test_fail
cmp al,71h ; "q" pressed ?
jne call_return
jmp test_fail ;
call_return :
pop dx
pop cx
pop bx
pop ax
ret
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