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-rw-r--r--drivers/net/sk98lin/sklm80.c141
1 files changed, 0 insertions, 141 deletions
diff --git a/drivers/net/sk98lin/sklm80.c b/drivers/net/sk98lin/sklm80.c
deleted file mode 100644
index a204f5bb55d4..000000000000
--- a/drivers/net/sk98lin/sklm80.c
+++ /dev/null
@@ -1,141 +0,0 @@
1/******************************************************************************
2 *
3 * Name: sklm80.c
4 * Project: Gigabit Ethernet Adapters, TWSI-Module
5 * Version: $Revision: 1.22 $
6 * Date: $Date: 2003/10/20 09:08:21 $
7 * Purpose: Functions to access Voltage and Temperature Sensor (LM80)
8 *
9 ******************************************************************************/
10
11/******************************************************************************
12 *
13 * (C)Copyright 1998-2002 SysKonnect.
14 * (C)Copyright 2002-2003 Marvell.
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
20 *
21 * The information in this file is provided "AS IS" without warranty.
22 *
23 ******************************************************************************/
24
25/*
26 LM80 functions
27*/
28#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
29static const char SysKonnectFileId[] =
30 "@(#) $Id: sklm80.c,v 1.22 2003/10/20 09:08:21 rschmidt Exp $ (C) Marvell. ";
31#endif
32
33#include "h/skdrv1st.h" /* Driver Specific Definitions */
34#include "h/lm80.h"
35#include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */
36
37#define BREAK_OR_WAIT(pAC,IoC,Event) break
38
39/*
40 * read a sensors value (LM80 specific)
41 *
42 * This function reads a sensors value from the I2C sensor chip LM80.
43 * The sensor is defined by its index into the sensors database in the struct
44 * pAC points to.
45 *
46 * Returns 1 if the read is completed
47 * 0 if the read must be continued (I2C Bus still allocated)
48 */
49int SkLm80ReadSensor(
50SK_AC *pAC, /* Adapter Context */
51SK_IOC IoC, /* I/O Context needed in level 1 and 2 */
52SK_SENSOR *pSen) /* Sensor to be read */
53{
54 SK_I32 Value;
55
56 switch (pSen->SenState) {
57 case SK_SEN_IDLE:
58 /* Send address to ADDR register */
59 SK_I2C_CTL(IoC, I2C_READ, pSen->SenDev, I2C_025K_DEV, pSen->SenReg, 0);
60
61 pSen->SenState = SK_SEN_VALUE ;
62 BREAK_OR_WAIT(pAC, IoC, I2C_READ);
63
64 case SK_SEN_VALUE:
65 /* Read value from data register */
66 SK_IN32(IoC, B2_I2C_DATA, ((SK_U32 *)&Value));
67
68 Value &= 0xff; /* only least significant byte is valid */
69
70 /* Do NOT check the Value against the thresholds */
71 /* Checking is done in the calling instance */
72
73 if (pSen->SenType == SK_SEN_VOLT) {
74 /* Voltage sensor */
75 pSen->SenValue = Value * SK_LM80_VT_LSB;
76 pSen->SenState = SK_SEN_IDLE ;
77 return(1);
78 }
79
80 if (pSen->SenType == SK_SEN_FAN) {
81 if (Value != 0 && Value != 0xff) {
82 /* Fan speed counter */
83 pSen->SenValue = SK_LM80_FAN_FAKTOR/Value;
84 }
85 else {
86 /* Indicate Fan error */
87 pSen->SenValue = 0;
88 }
89 pSen->SenState = SK_SEN_IDLE ;
90 return(1);
91 }
92
93 /* First: correct the value: it might be negative */
94 if ((Value & 0x80) != 0) {
95 /* Value is negative */
96 Value = Value - 256;
97 }
98
99 /* We have a temperature sensor and need to get the signed extension.
100 * For now we get the extension from the last reading, so in the normal
101 * case we won't see flickering temperatures.
102 */
103 pSen->SenValue = (Value * SK_LM80_TEMP_LSB) +
104 (pSen->SenValue % SK_LM80_TEMP_LSB);
105
106 /* Send address to ADDR register */
107 SK_I2C_CTL(IoC, I2C_READ, pSen->SenDev, I2C_025K_DEV, LM80_TEMP_CTRL, 0);
108
109 pSen->SenState = SK_SEN_VALEXT ;
110 BREAK_OR_WAIT(pAC, IoC, I2C_READ);
111
112 case SK_SEN_VALEXT:
113 /* Read value from data register */
114 SK_IN32(IoC, B2_I2C_DATA, ((SK_U32 *)&Value));
115 Value &= LM80_TEMP_LSB_9; /* only bit 7 is valid */
116
117 /* cut the LSB bit */
118 pSen->SenValue = ((pSen->SenValue / SK_LM80_TEMP_LSB) *
119 SK_LM80_TEMP_LSB);
120
121 if (pSen->SenValue < 0) {
122 /* Value negative: The bit value must be subtracted */
123 pSen->SenValue -= ((Value >> 7) * SK_LM80_TEMPEXT_LSB);
124 }
125 else {
126 /* Value positive: The bit value must be added */
127 pSen->SenValue += ((Value >> 7) * SK_LM80_TEMPEXT_LSB);
128 }
129
130 pSen->SenState = SK_SEN_IDLE ;
131 return(1);
132
133 default:
134 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E007, SKERR_I2C_E007MSG);
135 return(1);
136 }
137
138 /* Not completed */
139 return(0);
140}
141