1 /* $OpenBSD: adm1026.c,v 1.12 2022/04/06 18:59:28 naddy Exp $ */
2
3 /*
4 * Copyright (c) 2005 Theo de Raadt
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
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 /* ADM 1026 registers */
27 #define ADM1026_TEMP 0x1f
28 #define ADM1026_STATUS 0x20
29 #define ADM1026_Vbat 0x26
30 #define ADM1026_Ain8 0x27
31 #define ADM1026_EXT1 0x28
32 #define ADM1026_EXT2 0x29
33 #define ADM1026_V3_3stby 0x2a
34 #define ADM1026_V3_3main 0x2b
35 #define ADM1026_V5 0x2c
36 #define ADM1026_Vccp 0x2d
37 #define ADM1026_V12 0x2e
38 #define ADM1026_Vminus12 0x2f
39 #define ADM1026_FAN0 0x38
40 #define ADM1026_FAN1 0x39
41 #define ADM1026_FAN2 0x3a
42 #define ADM1026_FAN3 0x3b
43 #define ADM1026_FAN4 0x3c
44 #define ADM1026_FAN5 0x3d
45 #define ADM1026_FAN6 0x3e
46 #define ADM1026_FAN7 0x3f
47 #define ADM1026_EXT1_OFF 0x6e
48 #define ADM1026_EXT2_OFF 0x6f
49 #define ADM1026_FAN0123DIV 0x02
50 #define ADM1026_FAN4567DIV 0x03
51 #define ADM1026_CONTROL 0x00
52 #define ADM1026_CONTROL_START 0x01
53 #define ADM1026_CONTROL_INTCLR 0x04
54
55 /* Sensors */
56 #define ADMCTS_TEMP 0
57 #define ADMCTS_EXT1 1
58 #define ADMCTS_EXT2 2
59 #define ADMCTS_Vbat 3
60 #define ADMCTS_V3_3stby 4
61 #define ADMCTS_V3_3main 5
62 #define ADMCTS_V5 6
63 #define ADMCTS_Vccp 7
64 #define ADMCTS_V12 8
65 #define ADMCTS_Vminus12 9
66 #define ADMCTS_FAN0 10
67 #define ADMCTS_FAN1 11
68 #define ADMCTS_FAN2 12
69 #define ADMCTS_FAN3 13
70 #define ADMCTS_FAN4 14
71 #define ADMCTS_FAN5 15
72 #define ADMCTS_FAN6 16
73 #define ADMCTS_FAN7 17
74 #define ADMCTS_NUM_SENSORS 18
75
76 struct admcts_softc {
77 struct device sc_dev;
78 i2c_tag_t sc_tag;
79 i2c_addr_t sc_addr;
80
81 struct ksensor sc_sensor[ADMCTS_NUM_SENSORS];
82 struct ksensordev sc_sensordev;
83 int sc_fanmul[8];
84 };
85
86 int admcts_match(struct device *, void *, void *);
87 void admcts_attach(struct device *, struct device *, void *);
88 void admcts_refresh(void *);
89
90 const struct cfattach admcts_ca = {
91 sizeof(struct admcts_softc), admcts_match, admcts_attach
92 };
93
94 struct cfdriver admcts_cd = {
95 NULL, "admcts", DV_DULL
96 };
97
98 int
admcts_match(struct device * parent,void * match,void * aux)99 admcts_match(struct device *parent, void *match, void *aux)
100 {
101 struct i2c_attach_args *ia = aux;
102
103 if (strcmp(ia->ia_name, "adm1026") == 0)
104 return (1);
105 return (0);
106 }
107
108 void
admcts_attach(struct device * parent,struct device * self,void * aux)109 admcts_attach(struct device *parent, struct device *self, void *aux)
110 {
111 struct admcts_softc *sc = (struct admcts_softc *)self;
112 struct i2c_attach_args *ia = aux;
113 u_int8_t cmd, data, data2;
114 int i;
115
116 sc->sc_tag = ia->ia_tag;
117 sc->sc_addr = ia->ia_addr;
118
119 iic_acquire_bus(sc->sc_tag, 0);
120 cmd = ADM1026_CONTROL;
121 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
122 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
123 iic_release_bus(sc->sc_tag, 0);
124 printf(": cannot get control register\n");
125 return;
126 }
127 data2 = data | ADM1026_CONTROL_START;
128 data2 = data2 & ~ADM1026_CONTROL_INTCLR;
129 if (data != data2) {
130 if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP,
131 sc->sc_addr, &cmd, sizeof cmd, &data2, sizeof data2, 0)) {
132 iic_release_bus(sc->sc_tag, 0);
133 printf(": cannot set control register\n");
134 return;
135 }
136 }
137
138 cmd = ADM1026_FAN0123DIV;
139 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
140 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
141 iic_release_bus(sc->sc_tag, 0);
142 printf(": cannot get fan0123div register\n");
143 return;
144 }
145 sc->sc_fanmul[0] = (1 << ((data >> 0) & 0x3));
146 sc->sc_fanmul[1] = (1 << ((data >> 2) & 0x3));
147 sc->sc_fanmul[2] = (1 << ((data >> 4) & 0x3));
148 sc->sc_fanmul[3] = (1 << ((data >> 6) & 0x3));
149
150 cmd = ADM1026_FAN4567DIV;
151 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
152 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0)) {
153 iic_release_bus(sc->sc_tag, 0);
154 printf(": cannot get fan0123div register\n");
155 return;
156 }
157 sc->sc_fanmul[4] = (1 << ((data >> 0) & 0x3));
158 sc->sc_fanmul[5] = (1 << ((data >> 2) & 0x3));
159 sc->sc_fanmul[6] = (1 << ((data >> 4) & 0x3));
160 sc->sc_fanmul[7] = (1 << ((data >> 6) & 0x3));
161
162 iic_release_bus(sc->sc_tag, 0);
163
164 /* Initialize sensor data. */
165 strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
166 sizeof(sc->sc_sensordev.xname));
167
168 sc->sc_sensor[ADMCTS_TEMP].type = SENSOR_TEMP;
169 strlcpy(sc->sc_sensor[ADMCTS_TEMP].desc, "Internal",
170 sizeof(sc->sc_sensor[ADMCTS_TEMP].desc));
171
172 sc->sc_sensor[ADMCTS_Vbat].type = SENSOR_VOLTS_DC;
173 strlcpy(sc->sc_sensor[ADMCTS_Vbat].desc, "Vbat",
174 sizeof(sc->sc_sensor[ADMCTS_Vbat].desc));
175
176 sc->sc_sensor[ADMCTS_EXT1].type = SENSOR_TEMP;
177 strlcpy(sc->sc_sensor[ADMCTS_EXT1].desc, "External",
178 sizeof(sc->sc_sensor[ADMCTS_EXT1].desc));
179
180 sc->sc_sensor[ADMCTS_EXT2].type = SENSOR_TEMP;
181 strlcpy(sc->sc_sensor[ADMCTS_EXT2].desc, "External",
182 sizeof(sc->sc_sensor[ADMCTS_EXT2].desc));
183
184 sc->sc_sensor[ADMCTS_V3_3stby].type = SENSOR_VOLTS_DC;
185 strlcpy(sc->sc_sensor[ADMCTS_V3_3stby].desc, "3.3 V standby",
186 sizeof(sc->sc_sensor[ADMCTS_V3_3stby].desc));
187
188 sc->sc_sensor[ADMCTS_V3_3main].type = SENSOR_VOLTS_DC;
189 strlcpy(sc->sc_sensor[ADMCTS_V3_3main].desc, "3.3 V main",
190 sizeof(sc->sc_sensor[ADMCTS_V3_3main].desc));
191
192 sc->sc_sensor[ADMCTS_V5].type = SENSOR_VOLTS_DC;
193 strlcpy(sc->sc_sensor[ADMCTS_V5].desc, "5 V",
194 sizeof(sc->sc_sensor[ADMCTS_V5].desc));
195
196 sc->sc_sensor[ADMCTS_Vccp].type = SENSOR_VOLTS_DC;
197 strlcpy(sc->sc_sensor[ADMCTS_Vccp].desc, "Vccp",
198 sizeof(sc->sc_sensor[ADMCTS_Vccp].desc));
199
200 sc->sc_sensor[ADMCTS_V12].type = SENSOR_VOLTS_DC;
201 strlcpy(sc->sc_sensor[ADMCTS_V12].desc, "12 V",
202 sizeof(sc->sc_sensor[ADMCTS_V12].desc));
203
204 sc->sc_sensor[ADMCTS_Vminus12].type = SENSOR_VOLTS_DC;
205 strlcpy(sc->sc_sensor[ADMCTS_Vminus12].desc, "-12 V",
206 sizeof(sc->sc_sensor[ADMCTS_Vminus12].desc));
207
208 sc->sc_sensor[ADMCTS_FAN1].type = SENSOR_FANRPM;
209 sc->sc_sensor[ADMCTS_FAN2].type = SENSOR_FANRPM;
210 sc->sc_sensor[ADMCTS_FAN3].type = SENSOR_FANRPM;
211 sc->sc_sensor[ADMCTS_FAN4].type = SENSOR_FANRPM;
212 sc->sc_sensor[ADMCTS_FAN5].type = SENSOR_FANRPM;
213 sc->sc_sensor[ADMCTS_FAN6].type = SENSOR_FANRPM;
214 sc->sc_sensor[ADMCTS_FAN7].type = SENSOR_FANRPM;
215
216 if (sensor_task_register(sc, admcts_refresh, 5) == NULL) {
217 printf(", unable to register update task\n");
218 return;
219 }
220
221 for (i = 0; i < ADMCTS_NUM_SENSORS; i++)
222 sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[i]);
223 sensordev_install(&sc->sc_sensordev);
224
225 printf("\n");
226 }
227
228 static void
fanval(struct ksensor * sens,int mul,u_int8_t data)229 fanval(struct ksensor *sens, int mul, u_int8_t data)
230 {
231 int tmp = data * mul;
232
233 if (tmp == 0)
234 sens->flags |= SENSOR_FINVALID;
235 else
236 sens->value = 1630000 / tmp;
237 }
238
239 void
admcts_refresh(void * arg)240 admcts_refresh(void *arg)
241 {
242 struct admcts_softc *sc = arg;
243 u_int8_t cmd, data;
244 int8_t sdata;
245
246 iic_acquire_bus(sc->sc_tag, 0);
247
248 cmd = ADM1026_TEMP;
249 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
250 sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
251 sc->sc_sensor[ADMCTS_TEMP].value = 273150000 + 1000000 * sdata;
252
253 cmd = ADM1026_EXT1;
254 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
255 sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
256 sc->sc_sensor[ADMCTS_EXT1].value = 273150000 + 1000000 * sdata;
257
258 cmd = ADM1026_EXT2;
259 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
260 sc->sc_addr, &cmd, sizeof cmd, &sdata, sizeof sdata, 0) == 0)
261 sc->sc_sensor[ADMCTS_EXT2].value = 273150000 + 1000000 * sdata;
262
263 cmd = ADM1026_Vbat;
264 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
265 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
266 sc->sc_sensor[ADMCTS_Vbat].value = 3000000 * data / 192;
267
268 cmd = ADM1026_V3_3stby;
269 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
270 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
271 sc->sc_sensor[ADMCTS_V3_3stby].value = 3300000 * data / 192;
272
273 cmd = ADM1026_V3_3main;
274 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
275 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
276 sc->sc_sensor[ADMCTS_V3_3main].value = 3300000 * data / 192;
277
278 cmd = ADM1026_V5;
279 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
280 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
281 sc->sc_sensor[ADMCTS_V5].value = 5500000 * data / 192;
282
283 cmd = ADM1026_Vccp;
284 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
285 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
286 sc->sc_sensor[ADMCTS_Vccp].value = 2250000 * data / 192;
287
288 cmd = ADM1026_V12;
289 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
290 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
291 sc->sc_sensor[ADMCTS_V12].value = 12000000 * data / 192;
292
293 cmd = ADM1026_Vminus12;
294 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
295 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
296 sc->sc_sensor[ADMCTS_Vminus12].value = -2125000 * data / 192;
297
298 cmd = ADM1026_FAN0;
299 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
300 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
301 fanval(&sc->sc_sensor[ADMCTS_FAN0], sc->sc_fanmul[0], data);
302
303 cmd = ADM1026_FAN1;
304 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
305 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
306 fanval(&sc->sc_sensor[ADMCTS_FAN1], sc->sc_fanmul[1], data);
307
308 cmd = ADM1026_FAN2;
309 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
310 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
311 fanval(&sc->sc_sensor[ADMCTS_FAN2], sc->sc_fanmul[2], data);
312
313 cmd = ADM1026_FAN3;
314 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
315 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
316 fanval(&sc->sc_sensor[ADMCTS_FAN3], sc->sc_fanmul[3], data);
317
318 cmd = ADM1026_FAN4;
319 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
320 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
321 fanval(&sc->sc_sensor[ADMCTS_FAN4], sc->sc_fanmul[4], data);
322
323 cmd = ADM1026_FAN5;
324 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
325 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
326 fanval(&sc->sc_sensor[ADMCTS_FAN5], sc->sc_fanmul[5], data);
327
328 cmd = ADM1026_FAN6;
329 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
330 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
331 fanval(&sc->sc_sensor[ADMCTS_FAN6], sc->sc_fanmul[6], data);
332
333 cmd = ADM1026_FAN7;
334 if (iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
335 sc->sc_addr, &cmd, sizeof cmd, &data, sizeof data, 0) == 0)
336 fanval(&sc->sc_sensor[ADMCTS_FAN7], sc->sc_fanmul[7], data);
337
338 iic_release_bus(sc->sc_tag, 0);
339 }
340