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adm1025

Revision 3007, 7.3 KB (checked in by khali, 7 years ago)
Backport the cleanups and corrections Rudolf Marek and I did when porting the chips documentation to Linux 2.6.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`

Line
1	Kernel driver `adm1025.o'
2	=========================
3
4	Status: Complete, known to work but not heavily tested
5
6	Supported chips:
7	* Analog Devices ADM1025
8	Prefix: 'adm1025'
9	Addresses scanned: I2C 0x2c - 0x2e
10	Datasheet: Publicly available at the Analog Devices website
11	* Philips NE1619
12	Prefix: 'ne1619'
13	Addresses scanned: I2C 0x2c - 0x2d
14	Datasheet: Publicly available at the Philips website
15
16	The NE1619 presents some differences with the original ADM1025:
17	* Only two possible addresses (0x2c - 0x2d).
18	* No temperature offset register, but we don't use it anyway.
19	* No INT mode for pin 16. We don't play with it anyway.
20
21	Author: Chen-Yuan Wu <gwu@esoft.com> and Jean Delvare <khali@linux-fr.org>
22
23	License: GPL
24
25
26	Module Parameters
27	-----------------
28
29	* force: short array (min = 1, max = 48)
30	List of adapter,address pairs to boldly assume to be present
31	* force_adm1025: short array (min = 1, max = 48)
32	List of adapter,address pairs which are unquestionably assumed to contain
33	a `adm1025' chip
34	* force_ne1619: short array (min = 1, max = 48)
35	List of adapter,address pairs which are unquestionably assumed to contain
36	a `ne1619' chip
37	* probe: short array (min = 1, max = 48)
38	List of adapter,address pairs to scan additionally
39	* probe_range: short array (min = 1, max = 48)
40	List of adapter,start-addr,end-addr triples to scan additionally
41	* ignore: short array (min = 1, max = 48)
42	List of adapter,address pairs not to scan
43	* ignore_range: short array (min = 1, max = 48)
44	List of adapter,start-addr,end-addr triples not to scan
45
46
47	Description
48	-----------
49
50	(This is from Analog Devices.) The ADM1025 is a complete system hardware
51	monitor for microprocessor-based systems, providing measurement and limit
52	comparison of various system parameters. Five voltage measurement inputs
53	are provided, for monitoring +2.5V, +3.3V, +5V and +12V power supplies and
54	the processor core voltage. The ADM1025 can monitor a sixth power-supply
55	voltage by measuring its own VCC. One input (two pins) is dedicated to a
56	remote temperature-sensing diode and an on-chip temperature sensor allows
57	ambient temperature to be monitored.
58
59	One specificity of this chip is that the pin 11 can be hardwired in two
60	different manners. It can act as the +12V power-supply voltage analog
61	input, or as the a fifth digital entry for the VID reading (bit 4). It's
62	kind of strange since both are useful, and the reason for designing the
63	chip that way is obscure at least to me. The bit 5 of the configuration
64	register can be used to define how the chip is hardwired. Please note
65	that it is not a choice you have to make as the user. The choice was
66	already made by your motherboard's maker. If the configuration bit isn't
67	set properly, you'll have a wrong +12V reading or a wrong VID reading.
68	The way the driver handles that is to preserve this bit through the
69	initialization process, assuming that the BIOS set it up properly
70	beforehand. If it turns out not to be true in some cases, we'll provide
71	a module parameter to force modes.
72
73
74	Chip Features
75	-------------
76
77	Chips 'adm1025' and 'ne1619'
78
79	LABEL LABEL CLASS COMPUTE CLASS MODE MAGN
80	in0 - - R- 2
81	in1 - - R- 2
82	in2 - - R- 2
83	in3 - - R- 2
84	in4 - - R- 2
85	in5 - - R- 2
86	in0_min in0 in0 RW 2
87	in1_min in1 in1 RW 2
88	in2_min in2 in2 RW 2
89	in3_min in3 in3 RW 2
90	in4_min in4 in4 RW 2
91	in5_min in5 in5 RW 2
92	in0_max in0 in0 RW 2
93	in1_max in1 in1 RW 2
94	in2_max in2 in2 RW 2
95	in3_max in3 in3 RW 2
96	in4_max in4 in4 RW 2
97	in5_max in5 in5 RW 2
98	temp1 - - R- 1
99	temp1_low temp1 temp1 RW 1
100	temp1_high temp1 temp1 RW 1
101	temp2 - - R- 1
102	temp2_low temp2 temp2 RW 1
103	temp2_high temp2 temp2 RW 1
104	vid - - R- 3
105	vrm - - RW 1
106	alarms - - R- 0
107
108	LABEL FEATURE SYMBOL SYSCTL FILE:N
109	in0 SENSORS_ADM1025_IN0 in0:3
110	in1 SENSORS_ADM1025_IN1 in1:3
111	in2 SENSORS_ADM1025_IN2 in2:3
112	in3 SENSORS_ADM1025_IN3 in3:3
113	in4 SENSORS_ADM1025_IN4 in4:3
114	in5 SENSORS_ADM1025_IN5 in5:3
115	in0_min SENSORS_ADM1025_IN0_MIN in0:1
116	in1_min SENSORS_ADM1025_IN1_MIN in1:1
117	in2_min SENSORS_ADM1025_IN2_MIN in2:1
118	in3_min SENSORS_ADM1025_IN3_MIN in3:1
119	in4_min SENSORS_ADM1025_IN4_MIN in4:1
120	in5_min SENSORS_ADM1025_IN5_MIN in5:1
121	in0_max SENSORS_ADM1025_IN0_MAX in0:2
122	in1_max SENSORS_ADM1025_IN1_MAX in1:2
123	in2_max SENSORS_ADM1025_IN2_MAX in2:2
124	in3_max SENSORS_ADM1025_IN3_MAX in3:2
125	in4_max SENSORS_ADM1025_IN4_MAX in4:2
126	in5_max SENSORS_ADM1025_IN5_MAX in5:2
127	temp1 SENSORS_ADM1025_TEMP1 temp1:3
128	temp1_low SENSORS_ADM1025_TEMP1_LOW temp1:2
129	temp1_high SENSORS_ADM1025_TEMP1_HIGH temp1:1
130	temp2 SENSORS_ADM1025_TEMP2 temp2:3
131	temp2_low SENSORS_ADM1025_TEMP2_LOW temp2:2
132	temp2_high SENSORS_ADM1025_TEMP2_HIGH temp2:1
133	vid SENSORS_ADM1025_VID vid:1
134	vrm SENSORS_ADM1025_VRM vrm:1
135	alarms SENSORS_ADM1025_ALARMS alarms:1

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