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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/* $OpenBSD: adt7460.c,v 1.8 2006/03/12 11:21:09 kettenis Exp $ */
/*
* Copyright (c) 2005 Mark Kettenis
*
* 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>
/* ADT7460 registers */
#define ADT7460_2_5V 0x20
#define ADT7460_VCCP1 0x22
#define ADT7460_REM1_TEMP 0x25
#define ADT7460_LOCAL_TEMP 0x26
#define ADT7460_REM2_TEMP 0x27
#define ADT7460_TACH1L 0x28
#define ADT7460_TACH1H 0x29
#define ADT7460_TACH2L 0x2a
#define ADT7460_TACH2H 0x2b
#define ADT7460_TACH3L 0x2c
#define ADT7460_TACH3H 0x2d
#define ADT7460_TACH4L 0x2e
#define ADT7460_TACH4H 0x2f
#define ADT7460_REVISION 0x3f
#define ADT7460_CONFIG 0x40
/* Sensors */
#define ADT_2_5V 0
#define ADT_VCCP1 1
#define ADT_REM1_TEMP 2
#define ADT_LOCAL_TEMP 3
#define ADT_REM2_TEMP 4
#define ADT_TACH1 5
#define ADT_TACH2 6
#define ADT_TACH3 7
#define ADT_TACH4 8
#define ADT_NUM_SENSORS 9
struct adt_softc {
struct device sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
int sc_chip;
struct sensor sc_sensor[ADT_NUM_SENSORS];
};
int adt_match(struct device *, void *, void *);
void adt_attach(struct device *, struct device *, void *);
void adt_refresh(void *);
struct cfattach adt_ca = {
sizeof(struct adt_softc), adt_match, adt_attach
};
struct cfdriver adt_cd = {
NULL, "adt", DV_DULL
};
int
adt_match(struct device *parent, void *match, void *aux)
{
struct i2c_attach_args *ia = aux;
if (strcmp(ia->ia_name, "adt7460") == 0 ||
strcmp(ia->ia_name, "adt7467") == 0 ||
strcmp(ia->ia_name, "adt7476") == 0 ||
strcmp(ia->ia_name, "adm1027") == 0 ||
strcmp(ia->ia_name, "lm85") == 0 ||
strcmp(ia->ia_name, "lm96000") == 0 ||
strcmp(ia->ia_name, "emc6d100") == 0 ||
strcmp(ia->ia_name, "emc6w201") == 0)
return (1);
return (0);
}
void
adt_attach(struct device *parent, struct device *self, void *aux)
{
struct adt_softc *sc = (struct adt_softc *)self;
struct i2c_attach_args *ia = aux;
u_int8_t cmd, rev, data;
int i;
sc->sc_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
iic_acquire_bus(sc->sc_tag, 0);
sc->sc_chip = 7460;
/* check for the fancy "extension" chips XXX */
if (strcmp(ia->ia_name, "adt7467") == 0 ||
strcmp(ia->ia_name, "adt7467") == 0)
sc->sc_chip = 7467;
cmd = ADT7460_REVISION;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &rev, sizeof rev, 0)) {
iic_release_bus(sc->sc_tag, 0);
printf(": cannot read REV register\n");
return;
}
if (sc->sc_chip == 7460) {
data = 1;
cmd = ADT7460_CONFIG;
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);
printf(": %s (ADT%d) rev 0x%02x", ia->ia_name, sc->sc_chip, rev);
/* Initialize sensor data. */
for (i = 0; i < ADT_NUM_SENSORS; i++)
strlcpy(sc->sc_sensor[i].device, sc->sc_dev.dv_xname,
sizeof(sc->sc_sensor[i].device));
sc->sc_sensor[ADT_2_5V].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADT_2_5V].desc, "+2.5Vin",
sizeof(sc->sc_sensor[ADT_2_5V].desc));
sc->sc_sensor[ADT_VCCP1].type = SENSOR_VOLTS_DC;
strlcpy(sc->sc_sensor[ADT_VCCP1].desc, "Vccp1",
sizeof(sc->sc_sensor[ADT_VCCP1].desc));
sc->sc_sensor[ADT_REM1_TEMP].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADT_REM1_TEMP].desc, "Rem1 Temp.",
sizeof(sc->sc_sensor[ADT_REM1_TEMP].desc));
sc->sc_sensor[ADT_LOCAL_TEMP].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADT_LOCAL_TEMP].desc, "Int. Temp.",
sizeof(sc->sc_sensor[ADT_LOCAL_TEMP].desc));
sc->sc_sensor[ADT_REM2_TEMP].type = SENSOR_TEMP;
strlcpy(sc->sc_sensor[ADT_REM2_TEMP].desc, "Rem2 Temp.",
sizeof(sc->sc_sensor[ADT_REM2_TEMP].desc));
sc->sc_sensor[ADT_TACH1].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[ADT_TACH1].desc, "TACH1",
sizeof(sc->sc_sensor[ADT_TACH1].desc));
sc->sc_sensor[ADT_TACH2].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[ADT_TACH2].desc, "TACH1",
sizeof(sc->sc_sensor[ADT_TACH2].desc));
sc->sc_sensor[ADT_TACH3].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[ADT_TACH3].desc, "TACH1",
sizeof(sc->sc_sensor[ADT_TACH3].desc));
sc->sc_sensor[ADT_TACH4].type = SENSOR_FANRPM;
strlcpy(sc->sc_sensor[ADT_TACH4].desc, "TACH1",
sizeof(sc->sc_sensor[ADT_TACH4].desc));
if (sensor_task_register(sc, adt_refresh, 5)) {
printf(", unable to register update task\n");
return;
}
for (i = 0; i < ADT_NUM_SENSORS; i++)
sensor_add(&sc->sc_sensor[i]);
printf("\n");
}
struct {
char sensor;
u_int8_t cmd;
} worklist[] = {
{ ADT_2_5V, ADT7460_2_5V },
{ ADT_VCCP1, ADT7460_VCCP1 },
{ ADT_REM1_TEMP, ADT7460_REM1_TEMP },
{ ADT_LOCAL_TEMP, ADT7460_LOCAL_TEMP },
{ ADT_REM2_TEMP, ADT7460_REM2_TEMP },
{ ADT_TACH1, ADT7460_TACH1L },
{ ADT_TACH2, ADT7460_TACH2L },
{ ADT_TACH3, ADT7460_TACH3L },
{ ADT_TACH4, ADT7460_TACH4L },
};
void
adt_refresh(void *arg)
{
struct adt_softc *sc = arg;
u_int8_t cmd, data, data2;
u_int16_t fan;
int i;
iic_acquire_bus(sc->sc_tag, 0);
for (i = 0; i < sizeof worklist / sizeof(worklist[0]); i++) {
cmd = worklist[i].cmd;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
sc->sc_sensor[i].flags |= SENSOR_FINVALID;
continue;
}
sc->sc_sensor[i].flags &= ~SENSOR_FINVALID;
switch (worklist[i].sensor) {
case ADT_2_5V:
sc->sc_sensor[i].value = 2500000 * data / 192;
break;
case ADT_VCCP1:
sc->sc_sensor[i].value = 2700000 * data / 192;
break;
case ADT_LOCAL_TEMP:
case ADT_REM1_TEMP:
case ADT_REM2_TEMP:
if (data == 0x80)
sc->sc_sensor[i].flags |= SENSOR_FINVALID;
else
sc->sc_sensor[i].value =
(int8_t)data * 1000000 + 273150000;
break;
case ADT_TACH1:
case ADT_TACH2:
case ADT_TACH3:
case ADT_TACH4:
cmd = worklist[i].cmd + 1; /* TACHnH follows TACHnL */
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) {
sc->sc_sensor[i].flags |= SENSOR_FINVALID;
continue;
}
fan = data + (data2 << 8);
if (fan == 0 || fan == 0xffff)
sc->sc_sensor[i].flags |= SENSOR_FINVALID;
else
sc->sc_sensor[i].value = (90000 * 60) / fan;
break;
default:
sc->sc_sensor[i].flags |= SENSOR_FINVALID;
break;
}
}
iic_release_bus(sc->sc_tag, 0);
}
|
