1 /*
2  *	Industrial Computer Source WDT500/501 driver for Linux 1.3.x
3  *
4  *	(c) Copyright 1995	CymruNET Ltd
5  *				Innovation Centre
6  *				Singleton Park
7  *				Swansea
8  *				Wales
9  *				UK
10  *				SA2 8PP
11  *
12  *	http://www.cymru.net
13  *
14  *	This driver is provided under the GNU General Public License, incorporated
15  *	herein by reference. The driver is provided without warranty or
16  *	support.
17  *
18  *	Release 0.04.
19  *
20  */
21 
22 #include <linux/config.h>
23 
24 #define WDT_COUNT0		(io+0)
25 #define WDT_COUNT1		(io+1)
26 #define WDT_COUNT2		(io+2)
27 #define WDT_CR			(io+3)
28 #define WDT_SR			(io+4)	/* Start buzzer on PCI write */
29 #define WDT_RT			(io+5)	/* Stop buzzer on PCI write */
30 #define WDT_BUZZER		(io+6)	/* PCI only: rd=disable, wr=enable */
31 #define WDT_DC			(io+7)
32 
33 /* The following are only on the PCI card, they're outside of I/O space on
34  * the ISA card: */
35 #define WDT_CLOCK		(io+12)	/* COUNT2: rd=16.67MHz, wr=2.0833MHz */
36 /* inverted opto isolated reset output: */
37 #define WDT_OPTONOTRST		(io+13)	/* wr=enable, rd=disable */
38 /* opto isolated reset output: */
39 #define WDT_OPTORST		(io+14)	/* wr=enable, rd=disable */
40 /* programmable outputs: */
41 #define WDT_PROGOUT		(io+15)	/* wr=enable, rd=disable */
42 
43 #define WDC_SR_WCCR		1	/* Active low */
44 #define WDC_SR_TGOOD		2
45 #define WDC_SR_ISOI0		4
46 #define WDC_SR_ISII1		8
47 #define WDC_SR_FANGOOD		16
48 #define WDC_SR_PSUOVER		32	/* Active low */
49 #define WDC_SR_PSUUNDR		64	/* Active low */
50 #define WDC_SR_IRQ		128	/* Active low */
51 
52 #ifndef WDT_IS_PCI
53 
54 /*
55  *	Feature Map 1 is the active high inputs not supported on your card.
56  *	Feature Map 2 is the active low inputs not supported on your card.
57  */
58 
59 #ifdef CONFIG_WDT_501		/* Full board */
60 
61 #ifdef CONFIG_WDT501_FAN	/* Full board, Fan has no tachometer */
62 #define FEATUREMAP1		0
63 #define WDT_OPTION_MASK		(WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER|WDIOF_EXTERN1|WDIOF_EXTERN2|WDIOF_FANFAULT)
64 #else
65 #define FEATUREMAP1		WDC_SR_FANGOOD
66 #define WDT_OPTION_MASK		(WDIOF_OVERHEAT|WDIOF_POWERUNDER|WDIOF_POWEROVER|WDIOF_EXTERN1|WDIOF_EXTERN2)
67 #endif
68 
69 #define FEATUREMAP2		0
70 #endif
71 
72 #ifndef CONFIG_WDT_501
73 #define CONFIG_WDT_500
74 #endif
75 
76 #ifdef CONFIG_WDT_500		/* Minimal board */
77 #define FEATUREMAP1		(WDC_SR_TGOOD|WDC_SR_FANGOOD)
78 #define FEATUREMAP2		(WDC_SR_PSUOVER|WDC_SR_PSUUNDR)
79 #define WDT_OPTION_MASK		(WDIOF_OVERHEAT)
80 #endif
81 
82 #else
83 
84 #define FEATUREMAP1		(WDC_SR_TGOOD|WDC_SR_FANGOOD)
85 #define FEATUREMAP2		(WDC_SR_PSUOVER|WDC_SR_PSUUNDR)
86 #define WDT_OPTION_MASK		(WDIOF_OVERHEAT)
87 #endif
88 
89 #ifndef FEATUREMAP1
90 #error "Config option not set"
91 #endif
92