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
|
/* $OpenBSD: gl518sm.c,v 1.7 2022/04/06 18:59:28 naddy Exp $ */
/*
* Copyright (c) 2006 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>
/* GL518SM registers */
#define GL518SM_CHIPID 0x00
#define GL518SM_REVISION 0x01
#define GL518SM_VENDORID 0x02
#define GL518SM_CONFIG 0x03
#define GL518SM_CONFIG_START 0x40
#define GL518SM_CONFIG_CLEARST 0x20
#define GL518SM_CONFIG_NOFAN2 0x10
#define GL518SM_TEMP 0x04
#define GL518SM_TEMP_OVER 0x05
#define GL518SM_TEMP_HYST 0x06
#define GL518SM_FAN_COUNT 0x07
#define GL518SM_FAN_LIMIT 0x08
#define GL518SM_VIN1_LIMIT 0x09
#define GL518SM_VIN2_LIMIT 0x0a
#define GL518SM_VIN3_LIMIT 0x0b
#define GL518SM_VDD_LIMIT 0x0c
#define GL518SM_VOLTMETER 0x0d
#define GL518SM_MISC 0x0f
#define GL518SM_ALARM 0x10
#define GL518SM_MASK 0x11
#define GL518SM_INTSTAT 0x12
/* Sensors */
#define GLENV_VIN3 0
#define GLENV_TEMP 1
#define GLENV_FAN1 2
#define GLENV_FAN2 3
#define GLENV_NUM_SENSORS 4
struct glenv_softc {
struct device sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
struct ksensor sc_sensor[GLENV_NUM_SENSORS];
struct ksensordev sc_sensordev;
int sc_fan1_div, sc_fan2_div;
};
int glenv_match(struct device *, void *, void *);
void glenv_attach(struct device *, struct device *, void *);
void glenv_refresh(void *);
const struct cfattach glenv_ca = {
sizeof(struct glenv_softc), glenv_match, glenv_attach
};
struct cfdriver glenv_cd = {
NULL, "glenv", DV_DULL
};
int
glenv_match(struct device *parent, void *match, void *aux)
{
struct i2c_attach_args *ia = aux;
if (strcmp(ia->ia_name, "gl518sm") == 0)
return (1);
return (0);
}
void
glenv_attach(struct device *parent, struct device *self, void *aux)
{
struct glenv_softc *sc = (struct glenv_softc *)self;
struct i2c_attach_args *ia = aux;
u_int8_t cmd, data;
int i;
sc->sc_tag = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
iic_acquire_bus(sc->sc_tag, 0);
cmd = GL518SM_REVISION;
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 read revision register\n");
return;
}
printf(": GL518SM rev 0x%02x", data);
cmd = GL518SM_MISC;
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 read misc register\n");
return;
}
sc->sc_fan1_div = 1 << ((data >> 6) & 0x03);
sc->sc_fan2_div = 1 << ((data >> 4) & 0x03);
cmd = GL518SM_CONFIG;
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 read configuration register\n");
return;
}
if (data & GL518SM_CONFIG_NOFAN2)
sc->sc_fan2_div = 0;
/* Start monitoring and clear interrupt status. */
data = (data | GL518SM_CONFIG_START | GL518SM_CONFIG_CLEARST);
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 write configuration register\n");
return;
}
iic_release_bus(sc->sc_tag, 0);
/* Initialize sensor data. */
strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
sizeof(sc->sc_sensordev.xname));
sc->sc_sensor[GLENV_VIN3].type = SENSOR_VOLTS_DC;
sc->sc_sensor[GLENV_TEMP].type = SENSOR_TEMP;
sc->sc_sensor[GLENV_FAN1].type = SENSOR_FANRPM;
sc->sc_sensor[GLENV_FAN2].type = SENSOR_FANRPM;
if (sc->sc_fan2_div == -1)
sc->sc_sensor[GLENV_FAN2].flags |= SENSOR_FINVALID;
if (sensor_task_register(sc, glenv_refresh, 5) == NULL) {
printf(", unable to register update task\n");
return;
}
for (i = 0; i < GLENV_NUM_SENSORS; i++)
sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]);
sensordev_install(&sc->sc_sensordev);
printf("\n");
}
void
glenv_refresh(void *arg)
{
struct glenv_softc *sc = arg;
u_int8_t cmd, data, data2[2];
u_int tmp;
iic_acquire_bus(sc->sc_tag, 0);
cmd = GL518SM_VOLTMETER;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
sc->sc_sensor[GLENV_VIN3].flags |= SENSOR_FINVALID;
} else {
sc->sc_sensor[GLENV_VIN3].flags &= ~SENSOR_FINVALID;
sc->sc_sensor[GLENV_VIN3].value = data * 19000;
}
cmd = GL518SM_TEMP;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
sc->sc_sensor[GLENV_TEMP].flags |= SENSOR_FINVALID;
} else {
sc->sc_sensor[GLENV_TEMP].flags &= ~SENSOR_FINVALID;
sc->sc_sensor[GLENV_TEMP].value =
(data - 119) * 1000000 + 273150000;
}
cmd = GL518SM_FAN_COUNT;
if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) {
sc->sc_sensor[GLENV_FAN1].flags |= SENSOR_FINVALID;
sc->sc_sensor[GLENV_FAN2].flags |= SENSOR_FINVALID;
} else {
sc->sc_sensor[GLENV_FAN1].flags &= ~SENSOR_FINVALID;
tmp = data2[0] * sc->sc_fan1_div * 2;
if (tmp == 0)
sc->sc_sensor[GLENV_FAN1].flags |= SENSOR_FINVALID;
else
sc->sc_sensor[GLENV_FAN1].value = 960000 / tmp;
sc->sc_sensor[GLENV_FAN2].flags &= ~SENSOR_FINVALID;
tmp = data2[1] * sc->sc_fan2_div * 2;
if (tmp == 0)
sc->sc_sensor[GLENV_FAN2].flags |= SENSOR_FINVALID;
else
sc->sc_sensor[GLENV_FAN2].value = 960000 / tmp;
}
iic_release_bus(sc->sc_tag, 0);
}
|
