1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/* $OpenBSD: adm1021.c,v 1.24 2006/07/20 21:23:42 kettenis Exp $ */
/*
* Copyright (c) 2005 Theo de Raadt
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/sensors.h>
#include <dev/i2c/i2cvar.h>
/* ADM 1021 registers */
#define ADM1021_INT_TEMP 0x00
#define ADM1021_EXT_TEMP 0x01
#define ADM1021_STATUS 0x02
#define ADM1021_STATUS_INVAL 0x7f
#define ADM1021_STATUS_NOEXT 0x40
#define ADM1021_CONFIG_READ 0x03
#define ADM1021_CONFIG_WRITE 0x09
#define ADM1021_CONFIG_RUN 0x40
#define ADM1021_COMPANY 0xfe /* contains 0x41 */
#define ADM1021_STEPPING 0xff /* contains 0x3? */
/* Sensors */
#define ADMTEMP_EXT 0
#define ADMTEMP_INT 1
#define ADMTEMP_NUM_SENSORS 2
struct admtemp_softc {
struct device sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
struct sensor sc_sensor[ADMTEMP_NUM_SENSORS];
int sc_noexternal;
};
int admtemp_match(struct device *, void *, void *);
void admtemp_attach(struct device *, struct device *, void *);
void admtemp_refresh(void *);
struct cfattach admtemp_ca = {
sizeof(struct admtemp_softc), admtemp_match, admtemp_attach
};
struct cfdriver admtemp_cd = {
NULL, "admtemp", DV_DULL
};
int
admtemp_match(struct device *parent, void *match, void *aux)
{
struct i2c_attach_args *ia = aux;
if (strcmp(ia->ia_name, "adm1021") == 0 ||
strcmp(ia->ia_name, "adm1023") == 0 ||
strcmp(ia->ia_name, "adm1032") == 0 ||
strcmp(ia->ia_name, "g781") == 0 ||
strcmp(ia->ia_name, "g781-1") == 0 ||
strcmp(ia->ia_name, "gl523sm") == 0 ||
strcmp(ia->ia_name, "max1617") == 0 ||
strcmp(ia->ia_name, "xeontemp") == 0)
return (1);
return (0);
}
void
admtemp_attach(struct device *parent, struct device *self, void *aux)
{
struct admtemp_softc *sc = (struct admtemp_softc *)self;
struct i2c_attach_args *ia = aux;
u_int8_t cmd, data, stat;
int xeon = 0, i;
sc->sc_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
if (strcmp(ia->ia_name, "xeontemp") == 0) {
printf(": Xeon");
xeon = 1;
} else
printf(": %s", ia->ia_name);
iic_acquire_bus(sc->sc_tag, 0);
cmd = ADM1021_CONFIG_READ;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(", cannot get control register\n");
return;
}
if (data & ADM1021_CONFIG_RUN) {
cmd = ADM1021_STATUS;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &stat, sizeof stat, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(", cannot read status register\n");
return;
}
if ((stat & ADM1021_STATUS_INVAL) == ADM1021_STATUS_INVAL) {
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &stat, sizeof stat, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(", cannot read status register\n");
return;
}
}
/* means external is dead */
if ((stat & ADM1021_STATUS_INVAL) != ADM1021_STATUS_INVAL &&
(stat & ADM1021_STATUS_NOEXT))
sc->sc_noexternal = 1;
data &= ~ADM1021_CONFIG_RUN;
cmd = ADM1021_CONFIG_WRITE;
if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(", cannot set control register\n");
return;
}
}
iic_release_bus(sc->sc_tag, 0);
/* Initialize sensor data. */
for (i = 0; i < ADMTEMP_NUM_SENSORS; i++)
strlcpy(sc->sc_sensor[i].device, sc->sc_dev.dv_xname,
sizeof(sc->sc_sensor[i].device));
sc->sc_sensor[ADMTEMP_EXT].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADMTEMP_EXT].desc,
xeon ? "Xeon Temp" : "External Temp",
sizeof(sc->sc_sensor[ADMTEMP_EXT].desc));
sc->sc_sensor[ADMTEMP_INT].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADMTEMP_INT].desc,
xeon ? "Xeon Temp" : "Internal Temp",
sizeof(sc->sc_sensor[ADMTEMP_INT].desc));
if (sensor_task_register(sc, admtemp_refresh, 5)) {
printf(", unable to register update task\n");
return;
}
for (i = 0; i < (sc->sc_noexternal ? 1 : ADMTEMP_NUM_SENSORS); i++)
sensor_add(&sc->sc_sensor[i]);
printf("\n");
}
void
admtemp_refresh(void *arg)
{
struct admtemp_softc *sc = arg;
u_int8_t cmd;
int8_t sdata;
iic_acquire_bus(sc->sc_tag, 0);
if (sc->sc_noexternal == 0) {
cmd = ADM1021_EXT_TEMP;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0) {
if (sdata == 0x7f) {
sc->sc_sensor[ADMTEMP_EXT].flags |= SENSOR_FINVALID;
} else {
sc->sc_sensor[ADMTEMP_EXT].value =
273150000 + 1000000 * sdata;
sc->sc_sensor[ADMTEMP_EXT].flags &= ~SENSOR_FINVALID;
}
}
} else
sc->sc_sensor[ADMTEMP_EXT].flags |= SENSOR_FINVALID;
cmd = ADM1021_INT_TEMP;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, sc->sc_addr,
&cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0) {
if (sdata == 0x7f) {
sc->sc_sensor[ADMTEMP_INT].flags |= SENSOR_FINVALID;
} else {
sc->sc_sensor[ADMTEMP_INT].value =
273150000 + 1000000 * sdata;
sc->sc_sensor[ADMTEMP_INT].flags &= ~SENSOR_FINVALID;
}
}
iic_release_bus(sc->sc_tag, 0);
}
|
