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Rev Author Line No. Line
205 heavyiron 1 
; Integrated Technology Express
2 
;	Chip	Temp	Volt	Fan
3 
;	it8705	 3	 8	 3
4 
;	it8712	 3	 8	 3
5 
 
6 
; SiS
7 
;	Chip	Temp	Volt	Fan
8 
;	sis950	 3	 8	 3
9 
 
10 
IT87_REGCHIP	equ	0x58
11 
IT87_CHIPID	equ	0x90
12 
IT87_FANDIV	equ	0x0B
13 
uglobal
14 
it_chip_id	db	0
15 
endg
16 
it8705		db	15, 'IT8705F/SiS 950'
17 
it8712		db	 7, 'IT8712F'
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it8716		db	 7, 'IT8716F'
19 
ite_unk		db	11, 'Unknown ITE'
20 
 
21 
ite_coeff:	dd 0.016		; Vcore
22 
		dd 0.016		; Vin0
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		dd 0.016		; Vin1 (+3.3V)
24 
		dd 0.02688		; AVcc (+5V)
25 
		dd 0.0608		; Vin2 (+12V)
26 
		dd -0.055632		; -12V
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		dd -0.02408		; -5V
28 
;-----------------------------------
29 
it87_init:
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; Проверка наличия и инициализация
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; OUT - CF = 1 - error
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	;--- Проверяем IT87* --------
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	mov	dx, 0x295
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	mov	al, IT87_REGCHIP
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	out	dx, al
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	inc	edx
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	in	al, dx
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	cmp	al, IT87_CHIPID
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	jne	it87_no		; это не it87 !!!
40 
	; -~- not tested ~-~-
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	dec	edx		; --- узнаём идентификатор чипа --
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	mov	al, 0x21
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	out	dx, al
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	inc	edx
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	in	al, dx
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	mov	byte[it_chip_id], al
47 
	; -~-~-~-~-~-~-~-~-~-
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	clc
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	ret
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it87_no:stc
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	ret
52 
;-----------------------------------
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it87_get_temp:
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	mov	dx, 0x296
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	xor	ecx, ecx
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	mov	esi, temps
57 
@@:	dec	edx
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	mov	eax, ecx
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	add	al, 0x29
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	out	dx, al
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	inc	edx
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	in	al, dx
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	mov	[esi + ecx * 2], al
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	inc	ecx
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	cmp	ecx, 3
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	jb	@b
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	ret
68 
;-----------------------------------
69 
it87_fan_div	db	1, 1, 1
70 
it87_get_fan_speed:
71 
; читаем делители
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	mov	dx, 0x295
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	mov	al, IT87_FANDIV
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	out	dx, al
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	inc	dx
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	in	al, dx
77 
	mov	ah, al
78 
	and	al, 0x07
79 
	mov	[it87_fan_div], al
80 
	shr	ah, 3
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	and	ah, 0x07
82 
	mov	[it87_fan_div + 1], ah
83 
 
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	xor	ecx, ecx
85 
@@:	mov	dx, 0x295
86 
	mov	al, 0x0D
87 
	add	al, cl
88 
	out	dx, al
89 
	inc	edx
90 
	in	al, dx
91 
	movzx	ebx, al
92 
	push	ecx
93 
	mov	cl, [it87_fan_div + ecx]
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	shl	ebx, cl
95 
	pop	ecx
96 
	mov	eax, 1350000
97 
	xor	edx, edx
98 
	div	ebx
99 
	mov	[rpms + 4 * ecx], eax
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	inc	ecx
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	cmp	ecx, 3
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	jb	@b
103 
 
104 
	ret
105 
;--------------------------------------------------------------------------
106 
it87_get_name:
107 
	mov	edx, it8705
108 
	cmp	byte[it_chip_id], 0x05
109 
	je	@f
110 
	mov	edx, it8712
111 
	cmp	byte[it_chip_id], 0x12
112 
	je	@f
113 
	mov	edx, it8716
114 
	cmp	byte[it_chip_id], 0x16
115 
	je	@f
116 
	mov	edx, ite_unk
117 
@@:	ret