1 /* $NetBSD: itesio_isa.c,v 1.30 2022/06/29 15:56:58 mlelstv Exp $ */
2 /* Derived from $OpenBSD: it.c,v 1.19 2006/04/10 00:57:54 deraadt Exp $ */
3
4 /*
5 * Copyright (c) 2006-2007 Juan Romero Pardines <xtraeme@netbsd.org>
6 * Copyright (c) 2003 Julien Bordet <zejames@greyhats.org>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITD TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITD TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 * Driver for the iTE IT87xxF Super I/O. Currently supporting
32 * the Environmental Controller to monitor the sensors and the
33 * Watchdog Timer.
34 */
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: itesio_isa.c,v 1.30 2022/06/29 15:56:58 mlelstv Exp $");
38
39 #include <sys/param.h>
40 #include <sys/kernel.h>
41 #include <sys/device.h>
42 #include <sys/module.h>
43 #include <sys/bus.h>
44 #include <sys/kmem.h>
45
46 #include <dev/isa/isareg.h>
47 #include <dev/isa/isavar.h>
48
49 #include <dev/sysmon/sysmonvar.h>
50
51 #include <dev/isa/itesio_isavar.h>
52
53 #define IT_VOLTSTART_IDX 3 /* voltage start index */
54 #define IT_FANSTART_IDX 12 /* fan start index */
55
56 /* IT8625: 3 temps, 10 volts, 6 fans */
57 #define IT8625_NUM_SENSORS 19
58 #define IT8625_VOLTSTART_IDX 3 /* voltage start index */
59 #define IT8625_FANSTART_IDX 13 /* fan start index */
60
61 #if defined(ITESIO_DEBUG)
62 #define DPRINTF(x) do { printf x; } while (0)
63 #else
64 #define DPRINTF(x)
65 #endif
66
67 /*
68 * IT87-compatible chips can typically measure voltages up to 4.096 V.
69 * To measure higher voltages the input is attenuated with (external)
70 * resistors. Negative voltages are measured using a reference
71 * voltage. So we have to convert the sensor values back to real
72 * voltages by applying the appropriate resistor factor.
73 */
74 #define RFACT_NONE 10000
75 #define RFACT(x, y) (RFACT_NONE * ((x) + (y)) / (y))
76
77 /* autoconf(9) functions */
78 static int itesio_isa_match(device_t, cfdata_t, void *);
79 static void itesio_isa_attach(device_t, device_t, void *);
80 static int itesio_isa_detach(device_t, int);
81
82 CFATTACH_DECL_NEW(itesio, sizeof(struct itesio_softc),
83 itesio_isa_match, itesio_isa_attach, itesio_isa_detach, NULL);
84
85 /* driver functions */
86 static uint8_t itesio_ecreadreg(struct itesio_softc *, int);
87 static void itesio_ecwritereg(struct itesio_softc *, int, int);
88 static uint8_t itesio_readreg(bus_space_tag_t, bus_space_handle_t, int);
89 static void itesio_writereg(bus_space_tag_t, bus_space_handle_t, int, int);
90 static void itesio_enter(bus_space_tag_t, bus_space_handle_t);
91 static void itesio_exit(bus_space_tag_t, bus_space_handle_t);
92
93 /* sysmon_envsys(9) glue */
94 static void itesio_setup_sensors(struct itesio_softc *);
95 static void itesio_refresh_temp(struct itesio_softc *, envsys_data_t *);
96 static void itesio_refresh_volts(struct itesio_softc *, envsys_data_t *);
97 static void itesio_refresh_fans(struct itesio_softc *, envsys_data_t *);
98 static void itesio_refresh(struct sysmon_envsys *, envsys_data_t *);
99 static void itesio_refresh_it8705_fans(struct itesio_softc *,
100 envsys_data_t *);
101 static void itesio_setup_it8625_sensors(struct itesio_softc *);
102 static void itesio_refresh_it8625_volts(struct itesio_softc *,
103 envsys_data_t *);
104 static void itesio_refresh_it8625_fans(struct itesio_softc *,
105 envsys_data_t *);
106
107 /* sysmon_wdog glue */
108 static bool itesio_wdt_suspend(device_t, const pmf_qual_t *);
109 static int itesio_wdt_setmode(struct sysmon_wdog *);
110 static int itesio_wdt_tickle(struct sysmon_wdog *);
111
112 /* rfact values for voltage sensors */
113 static const int itesio_vrfact[] = {
114 RFACT_NONE, /* VCORE_A */
115 RFACT_NONE, /* VCORE_B */
116 RFACT_NONE, /* +3.3V */
117 RFACT(68, 100), /* +5V */
118 RFACT(30, 10), /* +12V */
119 RFACT(21, 10), /* -5V */
120 RFACT(83, 20), /* -12V */
121 RFACT(68, 100), /* STANDBY */
122 RFACT_NONE /* VBAT */
123 };
124
125 static const struct itesio_config itesio_config[] = {
126 {
127 .chipid = ITESIO_ID8625,
128 .no_wdt = true,
129 .num_sensors = IT8625_NUM_SENSORS,
130 .voltstart_idx = IT8625_VOLTSTART_IDX,
131 .fanstart_idx = IT8625_FANSTART_IDX,
132 .setup_sensors = itesio_setup_it8625_sensors,
133 .refresh_volts = itesio_refresh_it8625_volts,
134 .refresh_fans = itesio_refresh_it8625_fans,
135 },
136 { .chipid = ITESIO_ID8628, },
137 { .chipid = ITESIO_ID8655, },
138 {
139 .chipid = ITESIO_ID8705,
140 .no_wdt = true,
141 .refresh_fans = itesio_refresh_it8705_fans,
142 },
143 {
144 .chipid = ITESIO_ID8712,
145 .refresh_fans = itesio_refresh_it8705_fans,
146 },
147 { .chipid = ITESIO_ID8716, },
148 { .chipid = ITESIO_ID8718, },
149 { .chipid = ITESIO_ID8720, },
150 { .chipid = ITESIO_ID8721, },
151 { .chipid = ITESIO_ID8726, },
152 { .chipid = ITESIO_ID8728, },
153 { .chipid = ITESIO_ID8771, },
154 { .chipid = ITESIO_ID8772, },
155 };
156
157 static const struct itesio_config *
itesio_isa_find_config(uint16_t chipid)158 itesio_isa_find_config(uint16_t chipid)
159 {
160 const struct itesio_config *ic;
161 size_t i;
162
163 for (i = 0; i < __arraycount(itesio_config); i++) {
164 ic = &itesio_config[i];
165 if (chipid == ic->chipid)
166 return ic;
167 }
168 return NULL;
169 }
170
171 static int
itesio_isa_match(device_t parent,cfdata_t match,void * aux)172 itesio_isa_match(device_t parent, cfdata_t match, void *aux)
173 {
174 struct isa_attach_args *ia = aux;
175 bus_space_handle_t ioh;
176 const struct itesio_config *ic;
177 uint16_t cr;
178
179 /* Must supply an address */
180 if (ia->ia_nio < 1)
181 return 0;
182
183 if (ISA_DIRECT_CONFIG(ia))
184 return 0;
185
186 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
187 return 0;
188
189 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 2, 0, &ioh))
190 return 0;
191
192 itesio_enter(ia->ia_iot, ioh);
193 cr = (itesio_readreg(ia->ia_iot, ioh, ITESIO_CHIPID1) << 8);
194 cr |= itesio_readreg(ia->ia_iot, ioh, ITESIO_CHIPID2);
195 itesio_exit(ia->ia_iot, ioh);
196 bus_space_unmap(ia->ia_iot, ioh, 2);
197
198 ic = itesio_isa_find_config(cr);
199 if (ic == NULL)
200 return 0;
201
202 ia->ia_nio = 1;
203 ia->ia_io[0].ir_size = 2;
204 ia->ia_niomem = 0;
205 ia->ia_nirq = 0;
206 ia->ia_ndrq = 0;
207 return 1;
208 }
209
210 static void
itesio_isa_attach(device_t parent,device_t self,void * aux)211 itesio_isa_attach(device_t parent, device_t self, void *aux)
212 {
213 struct itesio_softc *sc = device_private(self);
214 struct isa_attach_args *ia = aux;
215 const struct itesio_config *ic;
216 uint32_t i;
217 int error;
218 uint8_t cr;
219
220 sc->sc_iot = ia->ia_iot;
221
222 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 2, 0,
223 &sc->sc_pnp_ioh)) {
224 aprint_error(": can't map pnp i/o space\n");
225 return;
226 }
227
228 aprint_naive("\n");
229
230 /*
231 * Enter to the Super I/O MB PNP mode.
232 */
233 itesio_enter(sc->sc_iot, sc->sc_pnp_ioh);
234 /*
235 * Get info from the Super I/O Global Configuration Registers:
236 * Chip IDs and Device Revision.
237 */
238 sc->sc_chipid = (itesio_readreg(sc->sc_iot, sc->sc_pnp_ioh,
239 ITESIO_CHIPID1) << 8);
240 sc->sc_chipid |= itesio_readreg(sc->sc_iot, sc->sc_pnp_ioh,
241 ITESIO_CHIPID2);
242 sc->sc_devrev = (itesio_readreg(sc->sc_iot, sc->sc_pnp_ioh,
243 ITESIO_DEVREV) & 0x0f);
244 /*
245 * Select the EC LDN to get the Base Address.
246 */
247 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_LDNSEL,
248 ITESIO_EC_LDN);
249 sc->sc_hwmon_baseaddr =
250 (itesio_readreg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_EC_MSB) << 8);
251 sc->sc_hwmon_baseaddr |= itesio_readreg(sc->sc_iot, sc->sc_pnp_ioh,
252 ITESIO_EC_LSB);
253 /*
254 * We are done, exit MB PNP mode.
255 */
256 itesio_exit(sc->sc_iot, sc->sc_pnp_ioh);
257
258 ic = itesio_isa_find_config(sc->sc_chipid);
259 if (ic == NULL) {
260 aprint_error(": unknown chipid: %04x", sc->sc_chipid);
261 goto out2;
262 }
263 sc->sc_config = *ic;
264 if (sc->sc_config.num_sensors == 0)
265 sc->sc_config.num_sensors = IT_NUM_SENSORS;
266 if (sc->sc_config.voltstart_idx == 0)
267 sc->sc_config.voltstart_idx = IT_VOLTSTART_IDX;
268 if (sc->sc_config.fanstart_idx == 0)
269 sc->sc_config.fanstart_idx = IT_FANSTART_IDX;
270 if (sc->sc_config.setup_sensors == NULL)
271 sc->sc_config.setup_sensors = itesio_setup_sensors;
272 if (sc->sc_config.refresh_temp == NULL)
273 sc->sc_config.refresh_temp = itesio_refresh_temp;
274 if (sc->sc_config.refresh_volts == NULL)
275 sc->sc_config.refresh_volts = itesio_refresh_volts;
276 if (sc->sc_config.refresh_fans == NULL)
277 sc->sc_config.refresh_fans = itesio_refresh_fans;
278
279 aprint_normal(": iTE IT%4xF Super I/O (rev %d)\n",
280 sc->sc_chipid, sc->sc_devrev);
281 aprint_normal_dev(self, "Hardware Monitor registers at 0x%x\n",
282 sc->sc_hwmon_baseaddr);
283
284 if (bus_space_map(sc->sc_iot, sc->sc_hwmon_baseaddr, 8, 0,
285 &sc->sc_ec_ioh)) {
286 aprint_error_dev(self, "cannot map hwmon i/o space\n");
287 goto out2;
288 }
289
290 sc->sc_hwmon_mapped = true;
291
292 /* Activate monitoring */
293 cr = itesio_ecreadreg(sc, ITESIO_EC_CONFIG);
294 SET(cr, 0x01);
295 itesio_ecwritereg(sc, ITESIO_EC_CONFIG, cr);
296
297 #ifdef notyet
298 /* Enable beep alarms */
299 cr = itesio_ecreadreg(sc, ITESIO_EC_BEEPEER);
300 SET(cr, 0x02); /* Voltage exceeds limit */
301 SET(cr, 0x04); /* Temperature exceeds limit */
302 itesio_ecwritereg(sc, ITESIO_EC_BEEPEER, cr);
303 #endif
304
305 /*
306 * Initialize and attach sensors.
307 */
308 (*sc->sc_config.setup_sensors)(sc);
309 sc->sc_sme = sysmon_envsys_create();
310 for (i = 0; i < sc->sc_config.num_sensors; i++) {
311 if (sysmon_envsys_sensor_attach(sc->sc_sme,
312 &sc->sc_sensor[i])) {
313 sysmon_envsys_destroy(sc->sc_sme);
314 sc->sc_sme = NULL;
315 goto out;
316 }
317 }
318 /*
319 * Hook into the system monitor.
320 */
321 sc->sc_sme->sme_name = device_xname(self);
322 sc->sc_sme->sme_cookie = sc;
323 sc->sc_sme->sme_refresh = itesio_refresh;
324
325 if ((error = sysmon_envsys_register(sc->sc_sme))) {
326 aprint_error_dev(self,
327 "unable to register with sysmon (%d)\n", error);
328 sysmon_envsys_destroy(sc->sc_sme);
329 sc->sc_sme = NULL;
330 goto out;
331 }
332 sc->sc_hwmon_enabled = true;
333
334 if (!pmf_device_register(self, NULL, NULL))
335 aprint_error_dev(self, "couldn't establish power handler\n");
336
337 /* Some chips don't support the WDT */
338 if (sc->sc_config.no_wdt)
339 goto out2;
340
341 /*
342 * Initialize the watchdog timer.
343 */
344 sc->sc_smw.smw_name = device_xname(self);
345 sc->sc_smw.smw_cookie = sc;
346 sc->sc_smw.smw_setmode = itesio_wdt_setmode;
347 sc->sc_smw.smw_tickle = itesio_wdt_tickle;
348 sc->sc_smw.smw_period = 60;
349
350 if (sysmon_wdog_register(&sc->sc_smw)) {
351 aprint_error_dev(self, "unable to register watchdog timer\n");
352 goto out2;
353 }
354 sc->sc_wdt_enabled = true;
355 aprint_normal_dev(self, "Watchdog Timer present\n");
356
357 pmf_device_deregister(self);
358 if (!pmf_device_register(self, itesio_wdt_suspend, NULL))
359 aprint_error_dev(self, "couldn't establish power handler\n");
360
361 return;
362
363 out:
364 bus_space_unmap(sc->sc_iot, sc->sc_ec_ioh, 8);
365 out2:
366 bus_space_unmap(sc->sc_iot, sc->sc_pnp_ioh, 2);
367 }
368
369 static int
itesio_isa_detach(device_t self,int flags)370 itesio_isa_detach(device_t self, int flags)
371 {
372 struct itesio_softc *sc = device_private(self);
373
374 if (sc->sc_hwmon_enabled)
375 sysmon_envsys_unregister(sc->sc_sme);
376 if (sc->sc_hwmon_mapped)
377 bus_space_unmap(sc->sc_iot, sc->sc_ec_ioh, 8);
378 if (sc->sc_wdt_enabled) {
379 sysmon_wdog_unregister(&sc->sc_smw);
380 bus_space_unmap(sc->sc_iot, sc->sc_pnp_ioh, 2);
381 }
382
383 if (sc->sc_sensor != NULL) {
384 kmem_free(sc->sc_sensor,
385 sizeof(sc->sc_sensor[0]) * sc->sc_config.num_sensors);
386 }
387
388 return 0;
389 }
390
391 static bool
itesio_wdt_suspend(device_t dev,const pmf_qual_t * qual)392 itesio_wdt_suspend(device_t dev, const pmf_qual_t *qual)
393 {
394 struct itesio_softc *sc = device_private(dev);
395
396 /* Don't allow suspend if watchdog is armed */
397 if ((sc->sc_smw.smw_mode & WDOG_MODE_MASK) != WDOG_MODE_DISARMED)
398 return false;
399 return true;
400 }
401
402 /*
403 * Functions to read/write to the Environmental Controller.
404 */
405 static uint8_t
itesio_ecreadreg(struct itesio_softc * sc,int reg)406 itesio_ecreadreg(struct itesio_softc *sc, int reg)
407 {
408 bus_space_write_1(sc->sc_iot, sc->sc_ec_ioh, ITESIO_EC_ADDR, reg);
409 return bus_space_read_1(sc->sc_iot, sc->sc_ec_ioh, ITESIO_EC_DATA);
410 }
411
412 static void
itesio_ecwritereg(struct itesio_softc * sc,int reg,int val)413 itesio_ecwritereg(struct itesio_softc *sc, int reg, int val)
414 {
415 bus_space_write_1(sc->sc_iot, sc->sc_ec_ioh, ITESIO_EC_ADDR, reg);
416 bus_space_write_1(sc->sc_iot, sc->sc_ec_ioh, ITESIO_EC_DATA, val);
417 }
418
419 /*
420 * Functions to enter/exit/read/write to the Super I/O.
421 */
422 static uint8_t
itesio_readreg(bus_space_tag_t iot,bus_space_handle_t ioh,int reg)423 itesio_readreg(bus_space_tag_t iot, bus_space_handle_t ioh, int reg)
424 {
425 bus_space_write_1(iot, ioh, ITESIO_ADDR, reg);
426 return bus_space_read_1(iot, ioh, ITESIO_DATA);
427 }
428
429 static void
itesio_writereg(bus_space_tag_t iot,bus_space_handle_t ioh,int reg,int val)430 itesio_writereg(bus_space_tag_t iot, bus_space_handle_t ioh, int reg, int val)
431 {
432 bus_space_write_1(iot, ioh, ITESIO_ADDR, reg);
433 bus_space_write_1(iot, ioh, ITESIO_DATA, val);
434 }
435
436 static void
itesio_enter(bus_space_tag_t iot,bus_space_handle_t ioh)437 itesio_enter(bus_space_tag_t iot, bus_space_handle_t ioh)
438 {
439 bus_space_write_1(iot, ioh, ITESIO_ADDR, 0x87);
440 bus_space_write_1(iot, ioh, ITESIO_ADDR, 0x01);
441 bus_space_write_1(iot, ioh, ITESIO_ADDR, 0x55);
442 bus_space_write_1(iot, ioh, ITESIO_ADDR, 0x55);
443 }
444
445 static void
itesio_exit(bus_space_tag_t iot,bus_space_handle_t ioh)446 itesio_exit(bus_space_tag_t iot, bus_space_handle_t ioh)
447 {
448 bus_space_write_1(iot, ioh, ITESIO_ADDR, 0x02);
449 bus_space_write_1(iot, ioh, ITESIO_DATA, 0x02);
450 }
451
452
453 #define COPYDESCR(x, y) \
454 do { \
455 strlcpy((x), (y), sizeof(x)); \
456 } while (0)
457 /*
458 * sysmon_envsys(9) glue.
459 */
460 static void
itesio_setup_sensors_common(struct itesio_softc * sc)461 itesio_setup_sensors_common(struct itesio_softc *sc)
462 {
463 const struct itesio_config *ic = &sc->sc_config;
464 size_t allocsz;
465 uint32_t i;
466
467 allocsz = sizeof(sc->sc_sensor[0]) * ic->num_sensors;
468 sc->sc_sensor = kmem_zalloc(allocsz, KM_SLEEP);
469
470 /* temperatures */
471 for (i = 0; i < ic->voltstart_idx; i++)
472 sc->sc_sensor[i].units = ENVSYS_STEMP;
473
474 /* voltages */
475 for (i = ic->voltstart_idx; i < ic->fanstart_idx; i++) {
476 sc->sc_sensor[i].units = ENVSYS_SVOLTS_DC;
477 sc->sc_sensor[i].flags = ENVSYS_FCHANGERFACT;
478 }
479
480 /* fans */
481 for (i = ic->fanstart_idx; i < ic->num_sensors; i++)
482 sc->sc_sensor[i].units = ENVSYS_SFANRPM;
483
484 /* all */
485 for (i = 0; i < ic->num_sensors; i++)
486 sc->sc_sensor[i].state = ENVSYS_SINVALID;
487 }
488
489 static void
itesio_setup_sensors(struct itesio_softc * sc)490 itesio_setup_sensors(struct itesio_softc *sc)
491 {
492
493 itesio_setup_sensors_common(sc);
494
495 /* temperatures */
496 COPYDESCR(sc->sc_sensor[0].desc, "CPU Temp");
497 COPYDESCR(sc->sc_sensor[1].desc, "System Temp");
498 COPYDESCR(sc->sc_sensor[2].desc, "Aux Temp");
499
500 /* voltages */
501 COPYDESCR(sc->sc_sensor[3].desc, "VCORE_A");
502 COPYDESCR(sc->sc_sensor[4].desc, "VCORE_B");
503 COPYDESCR(sc->sc_sensor[5].desc, "+3.3V");
504 COPYDESCR(sc->sc_sensor[6].desc, "+5V");
505 COPYDESCR(sc->sc_sensor[7].desc, "+12V");
506 COPYDESCR(sc->sc_sensor[8].desc, "-5V");
507 COPYDESCR(sc->sc_sensor[9].desc, "-12V");
508 COPYDESCR(sc->sc_sensor[10].desc, "STANDBY");
509 COPYDESCR(sc->sc_sensor[11].desc, "VBAT");
510
511 /* fans */
512 COPYDESCR(sc->sc_sensor[12].desc, "CPU Fan");
513 COPYDESCR(sc->sc_sensor[13].desc, "System Fan");
514 COPYDESCR(sc->sc_sensor[14].desc, "Aux Fan");
515 }
516
517 static void
itesio_setup_it8625_sensors(struct itesio_softc * sc)518 itesio_setup_it8625_sensors(struct itesio_softc *sc)
519 {
520
521 itesio_setup_sensors_common(sc);
522
523 /* temperatures */
524 COPYDESCR(sc->sc_sensor[0].desc, "Temp0");
525 COPYDESCR(sc->sc_sensor[1].desc, "Temp1");
526 COPYDESCR(sc->sc_sensor[2].desc, "Temp2");
527
528 /* voltages */
529 COPYDESCR(sc->sc_sensor[3].desc, "VIN0");
530 COPYDESCR(sc->sc_sensor[4].desc, "VIN1");
531 COPYDESCR(sc->sc_sensor[5].desc, "VIN2");
532 COPYDESCR(sc->sc_sensor[6].desc, "VIN3");
533 COPYDESCR(sc->sc_sensor[7].desc, "VIN4");
534 COPYDESCR(sc->sc_sensor[8].desc, "VIN5");
535 COPYDESCR(sc->sc_sensor[9].desc, "VIN6");
536 COPYDESCR(sc->sc_sensor[10].desc, "Internal 3VSB");
537 COPYDESCR(sc->sc_sensor[11].desc, "VBAT");
538 COPYDESCR(sc->sc_sensor[12].desc, "Internal AVCC3");
539
540 /* fans */
541 COPYDESCR(sc->sc_sensor[13].desc, "Fan0");
542 COPYDESCR(sc->sc_sensor[14].desc, "Fan1");
543 COPYDESCR(sc->sc_sensor[15].desc, "Fan2");
544 COPYDESCR(sc->sc_sensor[16].desc, "Fan3");
545 COPYDESCR(sc->sc_sensor[17].desc, "Fan4");
546 COPYDESCR(sc->sc_sensor[18].desc, "Fan5");
547 }
548 #undef COPYDESCR
549
550 static void
itesio_refresh_temp(struct itesio_softc * sc,envsys_data_t * edata)551 itesio_refresh_temp(struct itesio_softc *sc, envsys_data_t *edata)
552 {
553 int sdata;
554
555 sdata = itesio_ecreadreg(sc, ITESIO_EC_SENSORTEMPBASE + edata->sensor);
556 /* sensor is not connected or reporting invalid data */
557 if (sdata == 0 || sdata >= 0xfa) {
558 edata->state = ENVSYS_SINVALID;
559 return;
560 }
561
562 DPRINTF(("%s: sdata[temp%d] 0x%x\n", __func__, edata->sensor, sdata));
563 /* Convert temperature to uK */
564 edata->value_cur = sdata * 1000000 + 273150000;
565 edata->state = ENVSYS_SVALID;
566 }
567
568 static void
itesio_refresh_volts(struct itesio_softc * sc,envsys_data_t * edata)569 itesio_refresh_volts(struct itesio_softc *sc, envsys_data_t *edata)
570 {
571 uint8_t vbatcr = 0;
572 int i, sdata;
573
574 i = edata->sensor - sc->sc_config.voltstart_idx;
575
576 sdata = itesio_ecreadreg(sc, ITESIO_EC_SENSORVOLTBASE + i);
577 /* not connected */
578 if (sdata == 0 || sdata == 0xff) {
579 edata->state = ENVSYS_SINVALID;
580 return;
581 }
582
583 /*
584 * update VBAT voltage reading every time we read it, to get
585 * latest value.
586 */
587 if (i == 8) {
588 vbatcr = itesio_ecreadreg(sc, ITESIO_EC_CONFIG);
589 SET(vbatcr, ITESIO_EC_UPDATEVBAT);
590 itesio_ecwritereg(sc, ITESIO_EC_CONFIG, vbatcr);
591 }
592
593 DPRINTF(("%s: sdata[volt%d] 0x%x\n", __func__, i, sdata));
594
595 /* voltage returned as (mV << 4) */
596 edata->value_cur = (sdata << 4);
597 /* negative values */
598 if (i == 5 || i == 6)
599 edata->value_cur -= ITESIO_EC_VREF;
600 /* rfact is (factor * 10^4) */
601 if (edata->rfact)
602 edata->value_cur *= edata->rfact;
603 else
604 edata->value_cur *= itesio_vrfact[i];
605 /* division by 10 gets us back to uVDC */
606 edata->value_cur /= 10;
607 if (i == 5 || i == 6)
608 edata->value_cur += ITESIO_EC_VREF * 1000;
609
610 edata->state = ENVSYS_SVALID;
611 }
612
613 static void
itesio_refresh_it8625_volts(struct itesio_softc * sc,envsys_data_t * edata)614 itesio_refresh_it8625_volts(struct itesio_softc *sc, envsys_data_t *edata)
615 {
616 int i, sdata;
617
618 i = edata->sensor - sc->sc_config.voltstart_idx;
619
620 if (i < 9)
621 sdata = itesio_ecreadreg(sc, ITESIO_EC_SENSORVOLTBASE + i);
622 else
623 sdata = itesio_ecreadreg(sc,
624 ITESIO_EC_SENSORVOLTEXTBASE + i - 9);
625 /* not connected */
626 if (sdata == 0 || sdata == 0xff) {
627 edata->state = ENVSYS_SINVALID;
628 return;
629 }
630
631 DPRINTF(("%s: sdata[volt%d] 0x%x\n", __func__, i, sdata));
632
633 if (i == 7) {
634 /* Internal 3VSB: reading value * 2 * 10.9mV */
635 edata->value_cur = sdata * 2 * 109;
636 } else {
637 /* other: reading value * 10.9mV */
638 edata->value_cur = sdata * 109;
639 }
640 /* rfact is (factor * 10^4) */
641 if (edata->rfact)
642 edata->value_cur *= edata->rfact;
643 else
644 edata->value_cur *= RFACT_NONE;
645 /* division by 100 gets us back to uVDC */
646 edata->value_cur /= 100;
647 edata->state = ENVSYS_SVALID;
648 }
649
650 static void
itesio_refresh_fans(struct itesio_softc * sc,envsys_data_t * edata)651 itesio_refresh_fans(struct itesio_softc *sc, envsys_data_t *edata)
652 {
653 uint8_t mode;
654 uint16_t sdata;
655 int i;
656
657 i = edata->sensor - sc->sc_config.fanstart_idx;
658
659 mode = itesio_ecreadreg(sc, ITESIO_EC_FAN16_CER);
660 sdata = itesio_ecreadreg(sc, ITESIO_EC_SENSORFANBASE + i);
661 if (mode & (1 << i))
662 sdata += (itesio_ecreadreg(sc,
663 ITESIO_EC_SENSORFANEXTBASE + i) << 8);
664 edata->state = ENVSYS_SVALID;
665 if (sdata == 0 ||
666 sdata == ((mode & (1 << i)) ? 0xffff : 0xff))
667 edata->state = ENVSYS_SINVALID;
668 else {
669 edata->value_cur = 1350000 / 2 / sdata;
670 edata->state = ENVSYS_SVALID;
671 }
672 DPRINTF(("%s: 16bit sdata[fan%d] 0x%x\n", __func__, i, sdata));
673 }
674
675 static void
itesio_refresh_it8705_fans(struct itesio_softc * sc,envsys_data_t * edata)676 itesio_refresh_it8705_fans(struct itesio_softc *sc, envsys_data_t *edata)
677 {
678 uint16_t sdata;
679 int i, divisor, odivisor, ndivisor;
680
681 i = edata->sensor - sc->sc_config.fanstart_idx;
682
683 /*
684 * Use the Fan Tachometer Divisor Register for
685 * IT8705F and IT8712F.
686 */
687 divisor = odivisor = ndivisor =
688 itesio_ecreadreg(sc, ITESIO_EC_FAN_TDR);
689 sdata = itesio_ecreadreg(sc, ITESIO_EC_SENSORFANBASE + i);
690 if (sdata == 0xff) {
691 edata->state = ENVSYS_SINVALID;
692 if (i == 2)
693 ndivisor |= 0x40;
694 else {
695 ndivisor &= ~(7 << (i * 3));
696 ndivisor |= ((divisor + 1) & 7) << (i * 3);
697 }
698 } else {
699 if (i == 2)
700 divisor = divisor & 1 ? 3 : 1;
701
702 if ((sdata << (divisor & 7)) == 0)
703 edata->state = ENVSYS_SINVALID;
704 else {
705 edata->value_cur =
706 1350000 / (sdata << (divisor & 7));
707 edata->state = ENVSYS_SVALID;
708 }
709 }
710 DPRINTF(("%s: 8bit sdata[fan%d] 0x%x div: 0x%x\n", __func__,
711 i, sdata, divisor));
712 if (ndivisor != odivisor)
713 itesio_ecwritereg(sc, ITESIO_EC_FAN_TDR, ndivisor);
714 }
715
716 static void
itesio_refresh_it8625_fans(struct itesio_softc * sc,envsys_data_t * edata)717 itesio_refresh_it8625_fans(struct itesio_softc *sc, envsys_data_t *edata)
718 {
719 uint16_t sdata;
720 int i;
721
722 i = edata->sensor - sc->sc_config.fanstart_idx;
723
724 switch (i) {
725 case 0:
726 case 1:
727 case 2:
728 sdata = itesio_ecreadreg(sc, ITESIO_EC_SENSORFANBASE + i);
729 sdata += (itesio_ecreadreg(sc,
730 ITESIO_EC_SENSORFANEXTBASE + i) << 8);
731 break;
732 case 3:
733 sdata = itesio_ecreadreg(sc, IT8625_EC_SENSORFAN4_LSB);
734 sdata += itesio_ecreadreg(sc, IT8625_EC_SENSORFAN4_MSB) << 8;
735 break;
736 case 4:
737 sdata = itesio_ecreadreg(sc, IT8625_EC_SENSORFAN5_LSB);
738 sdata += itesio_ecreadreg(sc, IT8625_EC_SENSORFAN5_MSB) << 8;
739 break;
740 case 5:
741 sdata = itesio_ecreadreg(sc, IT8625_EC_SENSORFAN6_LSB);
742 sdata += itesio_ecreadreg(sc, IT8625_EC_SENSORFAN6_MSB) << 8;
743 break;
744 default:
745 edata->state = ENVSYS_SINVALID;
746 return;
747 }
748 edata->state = ENVSYS_SVALID;
749 if (sdata == 0 || sdata == 0xffff)
750 edata->state = ENVSYS_SINVALID;
751 else {
752 edata->value_cur = 1350000 / 2 / sdata;
753 edata->state = ENVSYS_SVALID;
754 }
755 DPRINTF(("%s: 16bit sdata[fan%d] 0x%x\n", __func__, i, sdata));
756 }
757
758 static void
itesio_refresh(struct sysmon_envsys * sme,struct envsys_data * edata)759 itesio_refresh(struct sysmon_envsys *sme, struct envsys_data *edata)
760 {
761 struct itesio_softc *sc = sme->sme_cookie;
762
763 if (edata->sensor < sc->sc_config.voltstart_idx)
764 (*sc->sc_config.refresh_temp)(sc, edata);
765 else if (edata->sensor >= sc->sc_config.voltstart_idx &&
766 edata->sensor < sc->sc_config.fanstart_idx)
767 (*sc->sc_config.refresh_volts)(sc, edata);
768 else
769 (*sc->sc_config.refresh_fans)(sc, edata);
770 }
771
772 static int
itesio_wdt_setmode(struct sysmon_wdog * smw)773 itesio_wdt_setmode(struct sysmon_wdog *smw)
774 {
775 struct itesio_softc *sc = smw->smw_cookie;
776 int period = smw->smw_period;
777
778 /* Enter MB PNP mode and select the WDT LDN */
779 itesio_enter(sc->sc_iot, sc->sc_pnp_ioh);
780 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_LDNSEL,
781 ITESIO_WDT_LDN);
782
783 if ((smw->smw_mode & WDOG_MODE_MASK) == WDOG_MODE_DISARMED) {
784 /* Disable the watchdog */
785 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_CTL, 0);
786 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_CNF, 0);
787 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_TMO_MSB, 0);
788 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_TMO_LSB, 0);
789 } else {
790 /* Enable the watchdog */
791 if (period > ITESIO_WDT_MAXTIMO || period < 1)
792 period = smw->smw_period = ITESIO_WDT_MAXTIMO;
793
794 period *= 2;
795
796 /* set the timeout and start the watchdog */
797 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_TMO_MSB,
798 period >> 8);
799 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_TMO_LSB,
800 period & 0xff);
801 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_CNF,
802 ITESIO_WDT_CNF_SECS | ITESIO_WDT_CNF_KRST |
803 ITESIO_WDT_CNF_PWROK);
804 }
805 /* we are done, exit MB PNP mode */
806 itesio_exit(sc->sc_iot, sc->sc_pnp_ioh);
807
808 return 0;
809 }
810
811 static int
itesio_wdt_tickle(struct sysmon_wdog * smw)812 itesio_wdt_tickle(struct sysmon_wdog *smw)
813 {
814 struct itesio_softc *sc = smw->smw_cookie;
815 int period = smw->smw_period * 2;
816
817 /* refresh timeout value and exit */
818 itesio_enter(sc->sc_iot, sc->sc_pnp_ioh);
819 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_LDNSEL,
820 ITESIO_WDT_LDN);
821 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_TMO_MSB,
822 period >> 8);
823 itesio_writereg(sc->sc_iot, sc->sc_pnp_ioh, ITESIO_WDT_TMO_LSB,
824 period & 0xff);
825 itesio_exit(sc->sc_iot, sc->sc_pnp_ioh);
826
827 return 0;
828 }
829
830 MODULE(MODULE_CLASS_DRIVER, itesio, "sysmon_envsys,sysmon_wdog");
831
832 #ifdef _MODULE
833 #include "ioconf.c"
834 #endif
835
836 static int
itesio_modcmd(modcmd_t cmd,void * opaque)837 itesio_modcmd(modcmd_t cmd, void *opaque)
838 {
839 switch (cmd) {
840 case MODULE_CMD_INIT:
841 #ifdef _MODULE
842 return config_init_component(cfdriver_ioconf_itesio,
843 cfattach_ioconf_itesio, cfdata_ioconf_itesio);
844 #else
845 return 0;
846 #endif
847 case MODULE_CMD_FINI:
848 #ifdef _MODULE
849 return config_fini_component(cfdriver_ioconf_itesio,
850 cfattach_ioconf_itesio, cfdata_ioconf_itesio);
851 #else
852 return 0;
853 #endif
854 default:
855 return ENOTTY;
856 }
857 }
858