This source file includes following definitions.
- glenv_match
- glenv_attach
- glenv_refresh
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19 #include <sys/param.h>
20 #include <sys/systm.h>
21 #include <sys/device.h>
22 #include <sys/sensors.h>
23
24 #include <dev/i2c/i2cvar.h>
25
26
27 #define GL518SM_CHIPID 0x00
28 #define GL518SM_REVISION 0x01
29 #define GL518SM_VENDORID 0x02
30 #define GL518SM_CONFIG 0x03
31 #define GL518SM_CONFIG_START 0x40
32 #define GL518SM_CONFIG_CLEARST 0x20
33 #define GL518SM_CONFIG_NOFAN2 0x10
34 #define GL518SM_TEMP 0x04
35 #define GL518SM_TEMP_OVER 0x05
36 #define GL518SM_TEMP_HYST 0x06
37 #define GL518SM_FAN_COUNT 0x07
38 #define GL518SM_FAN_LIMIT 0x08
39 #define GL518SM_VIN1_LIMIT 0x09
40 #define GL518SM_VIN2_LIMIT 0x0a
41 #define GL518SM_VIN3_LIMIT 0x0b
42 #define GL518SM_VDD_LIMIT 0x0c
43 #define GL518SM_VOLTMETER 0x0d
44 #define GL518SM_MISC 0x0f
45 #define GL518SM_ALARM 0x10
46 #define GL518SM_MASK 0x11
47 #define GL518SM_INTSTAT 0x12
48
49
50 #define GLENV_VIN3 0
51 #define GLENV_TEMP 1
52 #define GLENV_FAN1 2
53 #define GLENV_FAN2 3
54 #define GLENV_NUM_SENSORS 4
55
56 struct glenv_softc {
57 struct device sc_dev;
58
59 i2c_tag_t sc_tag;
60 i2c_addr_t sc_addr;
61
62 struct ksensor sc_sensor[GLENV_NUM_SENSORS];
63 struct ksensordev sc_sensordev;
64 int sc_fan1_div, sc_fan2_div;
65 };
66
67 int glenv_match(struct device *, void *, void *);
68 void glenv_attach(struct device *, struct device *, void *);
69
70 void glenv_refresh(void *);
71
72 struct cfattach glenv_ca = {
73 sizeof(struct glenv_softc), glenv_match, glenv_attach
74 };
75
76 struct cfdriver glenv_cd = {
77 NULL, "glenv", DV_DULL
78 };
79
80 int
81 glenv_match(struct device *parent, void *match, void *aux)
82 {
83 struct i2c_attach_args *ia = aux;
84
85 if (strcmp(ia->ia_name, "gl518sm") == 0)
86 return (1);
87 return (0);
88 }
89
90 void
91 glenv_attach(struct device *parent, struct device *self, void *aux)
92 {
93 struct glenv_softc *sc = (struct glenv_softc *)self;
94 struct i2c_attach_args *ia = aux;
95 u_int8_t cmd, data;
96 int i;
97
98 sc->sc_tag = ia->ia_tag;
99 sc->sc_addr = ia->ia_addr;
100
101 iic_acquire_bus(sc->sc_tag, 0);
102
103 cmd = GL518SM_REVISION;
104 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
105 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
106 iic_release_bus(sc->sc_tag, 0);
107 printf(": cannot read revision register\n");
108 return;
109 }
110
111 printf(": GL518SM rev 0x%02x", data);
112
113 cmd = GL518SM_MISC;
114 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
115 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
116 iic_release_bus(sc->sc_tag, 0);
117 printf(", cannot read misc register\n");
118 return;
119 }
120 sc->sc_fan1_div = 1 << ((data >> 6) & 0x03);
121 sc->sc_fan2_div = 1 << ((data >> 4) & 0x03);
122
123 cmd = GL518SM_CONFIG;
124 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
125 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
126 iic_release_bus(sc->sc_tag, 0);
127 printf(", cannot read configuration register\n");
128 return;
129 }
130 if (data & GL518SM_CONFIG_NOFAN2)
131 sc->sc_fan2_div = 0;
132
133
134 data = (data | GL518SM_CONFIG_START | GL518SM_CONFIG_CLEARST);
135 if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP,
136 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
137 iic_release_bus(sc->sc_tag, 0);
138 printf(", cannot write configuration register\n");
139 return;
140 }
141
142 iic_release_bus(sc->sc_tag, 0);
143
144
145 strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
146 sizeof(sc->sc_sensordev.xname));
147
148 sc->sc_sensor[GLENV_VIN3].type = SENSOR_VOLTS_DC;
149
150 sc->sc_sensor[GLENV_TEMP].type = SENSOR_TEMP;
151
152 sc->sc_sensor[GLENV_FAN1].type = SENSOR_FANRPM;
153
154 sc->sc_sensor[GLENV_FAN2].type = SENSOR_FANRPM;
155 if (sc->sc_fan2_div == -1)
156 sc->sc_sensor[GLENV_FAN2].flags |= SENSOR_FINVALID;
157
158 if (sensor_task_register(sc, glenv_refresh, 5) == NULL) {
159 printf(", unable to register update task\n");
160 return;
161 }
162
163 for (i = 0; i < GLENV_NUM_SENSORS; i++)
164 sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]);
165 sensordev_install(&sc->sc_sensordev);
166
167 printf("\n");
168 }
169
170 void
171 glenv_refresh(void *arg)
172 {
173 struct glenv_softc *sc = arg;
174 u_int8_t cmd, data, data2[2];
175 u_int tmp;
176
177 iic_acquire_bus(sc->sc_tag, 0);
178
179 cmd = GL518SM_VOLTMETER;
180 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
181 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
182 sc->sc_sensor[GLENV_VIN3].flags |= SENSOR_FINVALID;
183 } else {
184 sc->sc_sensor[GLENV_VIN3].flags &= ~SENSOR_FINVALID;
185 sc->sc_sensor[GLENV_VIN3].value = data * 19000;
186 }
187
188 cmd = GL518SM_TEMP;
189 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
190 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
191 sc->sc_sensor[GLENV_TEMP].flags |= SENSOR_FINVALID;
192 } else {
193 sc->sc_sensor[GLENV_TEMP].flags &= ~SENSOR_FINVALID;
194 sc->sc_sensor[GLENV_TEMP].value =
195 (data - 119) * 1000000 + 273150000;
196 }
197
198 cmd = GL518SM_FAN_COUNT;
199 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
200 sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) {
201 sc->sc_sensor[GLENV_FAN1].flags |= SENSOR_FINVALID;
202 sc->sc_sensor[GLENV_FAN2].flags |= SENSOR_FINVALID;
203 } else {
204 sc->sc_sensor[GLENV_FAN1].flags &= ~SENSOR_FINVALID;
205 tmp = data2[0] * sc->sc_fan1_div * 2;
206 if (tmp == 0)
207 sc->sc_sensor[GLENV_FAN1].flags |= SENSOR_FINVALID;
208 else
209 sc->sc_sensor[GLENV_FAN1].value = 960000 / tmp;
210
211 sc->sc_sensor[GLENV_FAN2].flags &= ~SENSOR_FINVALID;
212 tmp = data2[1] * sc->sc_fan2_div * 2;
213 if (tmp == 0)
214 sc->sc_sensor[GLENV_FAN2].flags |= SENSOR_FINVALID;
215 else
216 sc->sc_sensor[GLENV_FAN2].value = 960000 / tmp;
217 }
218
219 iic_release_bus(sc->sc_tag, 0);
220 }