1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2012 Andreas Tobler
5 * Copyright (c) 2014 Justin Hibbits
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/param.h>
31#include <sys/bus.h>
32#include <sys/systm.h>
33#include <sys/module.h>
34#include <sys/callout.h>
35#include <sys/conf.h>
36#include <sys/cpu.h>
37#include <sys/ctype.h>
38#include <sys/kernel.h>
39#include <sys/reboot.h>
40#include <sys/rman.h>
41#include <sys/sysctl.h>
42#include <sys/limits.h>
43
44#include <machine/bus.h>
45#include <machine/md_var.h>
46
47#include <dev/iicbus/iicbus.h>
48#include <dev/iicbus/iiconf.h>
49
50#include <dev/ofw/openfirm.h>
51#include <dev/ofw/ofw_bus.h>
52#include <powerpc/powermac/powermac_thermal.h>
53
54/* ADT746X registers. */
55#define ADT746X_TACH1LOW          0x28
56#define ADT746X_TACH1HIGH         0x29
57#define ADT746X_TACH2LOW          0x2a
58#define ADT746X_TACH2HIGH         0x2b
59#define ADT746X_PWM1              0x30
60#define ADT746X_PWM2              0x31
61#define ADT746X_DEVICE_ID         0x3d
62#define ADT746X_COMPANY_ID        0x3e
63#define ADT746X_REV_ID            0x3f
64#define ADT746X_CONFIG            0x40
65#define ADT746X_PWM1_CONF         0x5c
66#define ADT746X_PWM2_CONF         0x5d
67#define ADT746X_MANUAL_MASK       0xe0
68
69#define ADT7460_DEV_ID            0x27
70#define ADT7467_DEV_ID            0x68
71
72struct adt746x_fan {
73	struct pmac_fan fan;
74	device_t        dev;
75	int             id;
76	int             setpoint;
77	int		pwm_reg;
78	int		conf_reg;
79};
80
81struct adt746x_sensor {
82	struct pmac_therm therm;
83	device_t          dev;
84	int               id;
85	cell_t	          reg;
86	enum {
87		ADT746X_SENSOR_TEMP,
88		ADT746X_SENSOR_VOLT,
89		ADT746X_SENSOR_SPEED
90	} type;
91};
92
93struct adt746x_softc {
94	device_t		sc_dev;
95	struct intr_config_hook enum_hook;
96	uint32_t                sc_addr;
97	/* The 7467 supports up to 4 fans, 2 voltage and 3 temperature sensors. */
98	struct adt746x_fan	sc_fans[4];
99	int			sc_nfans;
100	struct adt746x_sensor   sc_sensors[9];
101	int			sc_nsensors;
102	int                     device_id;
103
104};
105
106
107/* Regular bus attachment functions */
108
109static int  adt746x_probe(device_t);
110static int  adt746x_attach(device_t);
111
112
113/* Utility functions */
114static void adt746x_attach_fans(device_t dev);
115static void adt746x_attach_sensors(device_t dev);
116static int  adt746x_fill_fan_prop(device_t dev);
117static int  adt746x_fill_sensor_prop(device_t dev);
118
119static int  adt746x_fan_set_pwm(struct adt746x_fan *fan, int pwm);
120static int  adt746x_fan_get_pwm(struct adt746x_fan *fan);
121static int  adt746x_sensor_read(struct adt746x_sensor *sens);
122static void adt746x_start(void *xdev);
123
124/* i2c read/write functions. */
125static int  adt746x_write(device_t dev, uint32_t addr, uint8_t reg,
126			  uint8_t *buf);
127static int  adt746x_read(device_t dev, uint32_t addr, uint8_t reg,
128			 uint8_t *data);
129
130static device_method_t  adt746x_methods[] = {
131	/* Device interface */
132	DEVMETHOD(device_probe,	 adt746x_probe),
133	DEVMETHOD(device_attach, adt746x_attach),
134	{ 0, 0 },
135};
136
137static driver_t adt746x_driver = {
138	"adt746x",
139	adt746x_methods,
140	sizeof(struct adt746x_softc)
141};
142
143DRIVER_MODULE(adt746x, iicbus, adt746x_driver, 0, 0);
144static MALLOC_DEFINE(M_ADT746X, "adt746x", "ADT Sensor Information");
145
146
147/* i2c read/write functions. */
148
149static int
150adt746x_write(device_t dev, uint32_t addr, uint8_t reg, uint8_t *buff)
151{
152	uint8_t buf[4];
153	int try = 0;
154
155	struct iic_msg msg[] = {
156		{addr, IIC_M_WR, 2, buf }
157	};
158
159	/* Prepare the write msg. */
160	buf[0] = reg;
161	memcpy(buf + 1, buff, 1);
162
163	for (;;)
164	{
165		if (iicbus_transfer(dev, msg, 1) == 0)
166			return (0);
167		if (++try > 5) {
168			device_printf(dev, "iicbus write failed\n");
169			return (-1);
170		}
171		pause("adt746x_write", hz);
172	}
173	return (0);
174}
175
176static int
177adt746x_read(device_t dev, uint32_t addr, uint8_t reg, uint8_t *data)
178{
179	uint8_t buf[4];
180	int err, try = 0;
181
182	struct iic_msg msg[2] = {
183		{addr, IIC_M_WR | IIC_M_NOSTOP, 1, &reg},
184		{addr, IIC_M_RD, 1, buf},
185	};
186
187	for (;;)
188	{
189		err = iicbus_transfer(dev, msg, 2);
190		if (err != 0)
191			goto retry;
192
193		*data = *((uint8_t*)buf);
194		return (0);
195	retry:
196		if (++try > 5) {
197			device_printf(dev, "iicbus read failed\n");
198			return (-1);
199		}
200		pause("adt746x_read", hz);
201	}
202}
203
204static int
205adt746x_probe(device_t dev)
206{
207	const char  *name, *compatible;
208	struct adt746x_softc *sc;
209
210	name = ofw_bus_get_name(dev);
211	compatible = ofw_bus_get_compat(dev);
212
213	if (!name)
214		return (ENXIO);
215
216	if (strcmp(name, "fan") != 0 ||
217	    (strcmp(compatible, "adt7460") != 0 &&
218	     strcmp(compatible, "adt7467") != 0))
219		return (ENXIO);
220
221	sc = device_get_softc(dev);
222	sc->sc_dev = dev;
223	sc->sc_addr = iicbus_get_addr(dev);
224
225	device_set_desc(dev, "Apple Thermostat Unit ADT746X");
226
227	return (0);
228}
229
230static int
231adt746x_attach(device_t dev)
232{
233	struct adt746x_softc *sc;
234
235	sc = device_get_softc(dev);
236
237	sc->enum_hook.ich_func = adt746x_start;
238	sc->enum_hook.ich_arg = dev;
239
240	/* We have to wait until interrupts are enabled. I2C read and write
241	 * only works if the interrupts are available.
242	 * The unin/i2c is controlled by the htpic on unin. But this is not
243	 * the master. The openpic on mac-io is controlling the htpic.
244	 * This one gets attached after the mac-io probing and then the
245	 * interrupts will be available.
246	 */
247
248	if (config_intrhook_establish(&sc->enum_hook) != 0)
249		return (ENOMEM);
250
251	return (0);
252}
253
254static void
255adt746x_start(void *xdev)
256{
257	uint8_t did, cid, rev, conf;
258
259	struct adt746x_softc *sc;
260
261	device_t dev = (device_t)xdev;
262
263	sc = device_get_softc(dev);
264
265	adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_DEVICE_ID, &did);
266	adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_COMPANY_ID, &cid);
267	adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_REV_ID, &rev);
268	adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_CONFIG, &conf);
269
270	device_printf(dev, "Dev ID %#x, Company ID %#x, Rev ID %#x CNF: %#x\n",
271		      did, cid, rev, conf);
272
273	/* We can get the device id either from 'of' properties or from the chip
274	   itself. This method makes sure we can read the chip, otherwise
275	   we return.  */
276
277	sc->device_id = did;
278
279	conf = 1;
280	/* Start the ADT7460.  */
281	if (sc->device_id == ADT7460_DEV_ID)
282		adt746x_write(sc->sc_dev, sc->sc_addr, ADT746X_CONFIG, &conf);
283
284	/* Detect and attach child devices.  */
285	adt746x_attach_fans(dev);
286	adt746x_attach_sensors(dev);
287	config_intrhook_disestablish(&sc->enum_hook);
288}
289
290/*
291 * Sensor and fan management
292 */
293static int
294adt746x_fan_set_pwm(struct adt746x_fan *fan, int pwm)
295{
296	uint8_t reg = 0, manual, mode = 0;
297	struct adt746x_softc *sc;
298	uint8_t buf;
299
300	sc = device_get_softc(fan->dev);
301
302	/* Clamp to allowed range */
303	pwm = max(fan->fan.min_rpm, pwm);
304	pwm = min(fan->fan.max_rpm, pwm);
305
306	reg = fan->pwm_reg;
307	mode = fan->conf_reg;
308
309	/* From the 7460 datasheet:
310	   PWM dutycycle can be programmed from 0% (0x00) to 100% (0xFF)
311	   in steps of 0.39% (256 steps).
312	 */
313	buf = (pwm * 100 / 39) - (pwm ? 1 : 0);
314	fan->setpoint = buf;
315
316	/* Manual mode.  */
317	adt746x_read(sc->sc_dev, sc->sc_addr, mode, &manual);
318	manual |= ADT746X_MANUAL_MASK;
319	adt746x_write(sc->sc_dev, sc->sc_addr, mode, &manual);
320
321	/* Write speed.  */
322	adt746x_write(sc->sc_dev, sc->sc_addr, reg, &buf);
323
324	return (0);
325}
326
327static int
328adt746x_fan_get_pwm(struct adt746x_fan *fan)
329{
330	uint8_t buf, reg;
331	uint16_t pwm;
332	struct adt746x_softc *sc;
333
334	sc = device_get_softc(fan->dev);
335
336	reg = fan->pwm_reg;
337
338	adt746x_read(sc->sc_dev, sc->sc_addr, reg, &buf);
339
340	pwm = (buf * 39 / 100) + (buf ? 1 : 0);
341	return (pwm);
342}
343
344static int
345adt746x_fill_fan_prop(device_t dev)
346{
347	phandle_t child;
348	struct adt746x_softc *sc;
349	u_int *id;
350	char *location;
351	int i, id_len, len = 0, location_len, prev_len = 0;
352
353	sc = device_get_softc(dev);
354
355	child = ofw_bus_get_node(dev);
356
357	/* Fill the fan location property. */
358	location_len = OF_getprop_alloc(child, "hwctrl-location", (void **)&location);
359	id_len = OF_getprop_alloc_multi(child, "hwctrl-id", sizeof(cell_t), (void **)&id);
360	if (location_len == -1 || id_len == -1) {
361		OF_prop_free(location);
362		OF_prop_free(id);
363		return 0;
364	}
365
366	/* Fill in all the properties for each fan. */
367	for (i = 0; i < id_len; i++) {
368		strlcpy(sc->sc_fans[i].fan.name, location + len, 32);
369		prev_len = strlen(location + len) + 1;
370		len += prev_len;
371		sc->sc_fans[i].id = id[i];
372		if (id[i] == 6) {
373			sc->sc_fans[i].pwm_reg = ADT746X_PWM1;
374			sc->sc_fans[i].conf_reg = ADT746X_PWM1_CONF;
375		} else if (id[i] == 7) {
376			sc->sc_fans[i].pwm_reg = ADT746X_PWM2;
377			sc->sc_fans[i].conf_reg = ADT746X_PWM2_CONF;
378		} else {
379			sc->sc_fans[i].pwm_reg = ADT746X_PWM1 + i;
380			sc->sc_fans[i].conf_reg = ADT746X_PWM1_CONF + i;
381		}
382		sc->sc_fans[i].dev = sc->sc_dev;
383		sc->sc_fans[i].fan.min_rpm = 5;	/* Percent */
384		sc->sc_fans[i].fan.max_rpm = 100;
385		sc->sc_fans[i].fan.read = NULL;
386		sc->sc_fans[i].fan.set =
387			(int (*)(struct pmac_fan *, int))(adt746x_fan_set_pwm);
388		sc->sc_fans[i].fan.default_rpm = sc->sc_fans[i].fan.max_rpm;
389	}
390	OF_prop_free(location);
391	OF_prop_free(id);
392
393	return (i);
394}
395
396static int
397adt746x_fill_sensor_prop(device_t dev)
398{
399	phandle_t child, node;
400	struct adt746x_softc *sc;
401	char sens_type[32];
402	int i = 0, reg, sensid;
403
404	sc = device_get_softc(dev);
405
406	child = ofw_bus_get_node(dev);
407
408	/* Fill in the sensor properties for each child. */
409	for (node = OF_child(child); node != 0; node = OF_peer(node)) {
410		if (OF_getprop(node, "sensor-id", &sensid, sizeof(sensid)) == -1)
411		    continue;
412		OF_getprop(node, "location", sc->sc_sensors[i].therm.name, 32);
413		OF_getprop(node, "device_type", sens_type, sizeof(sens_type));
414		if (strcmp(sens_type, "temperature") == 0)
415			sc->sc_sensors[i].type = ADT746X_SENSOR_TEMP;
416		else if (strcmp(sens_type, "voltage") == 0)
417			sc->sc_sensors[i].type = ADT746X_SENSOR_VOLT;
418		else
419			sc->sc_sensors[i].type = ADT746X_SENSOR_SPEED;
420		OF_getprop(node, "reg", &reg, sizeof(reg));
421		OF_getprop(node, "sensor-id", &sensid,
422			sizeof(sensid));
423		/* This is the i2c register of the sensor.  */
424		sc->sc_sensors[i].reg = reg;
425		sc->sc_sensors[i].id = sensid;
426		OF_getprop(node, "zone", &sc->sc_sensors[i].therm.zone,
427			sizeof(sc->sc_sensors[i].therm.zone));
428		sc->sc_sensors[i].dev = dev;
429		sc->sc_sensors[i].therm.read =
430		    (int (*)(struct pmac_therm *))adt746x_sensor_read;
431		if (sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP) {
432		    /* Make up some ranges */
433		    sc->sc_sensors[i].therm.target_temp = 500 + ZERO_C_TO_K;
434		    sc->sc_sensors[i].therm.max_temp = 800 + ZERO_C_TO_K;
435
436		    pmac_thermal_sensor_register(&sc->sc_sensors[i].therm);
437		}
438		i++;
439	}
440
441	return (i);
442}
443
444static int
445adt746x_fanrpm_sysctl(SYSCTL_HANDLER_ARGS)
446{
447	device_t adt;
448	struct adt746x_softc *sc;
449	struct adt746x_fan *fan;
450	int pwm = 0, error;
451
452	adt = arg1;
453	sc = device_get_softc(adt);
454	fan = &sc->sc_fans[arg2];
455	pwm = adt746x_fan_get_pwm(fan);
456	error = sysctl_handle_int(oidp, &pwm, 0, req);
457
458	if (error || !req->newptr)
459		return (error);
460
461	return (adt746x_fan_set_pwm(fan, pwm));
462}
463
464static void
465adt746x_attach_fans(device_t dev)
466{
467	struct adt746x_softc *sc;
468	struct sysctl_oid *oid, *fanroot_oid;
469	struct sysctl_ctx_list *ctx;
470	char sysctl_name[32];
471	int i, j;
472
473	sc = device_get_softc(dev);
474
475	sc->sc_nfans = 0;
476
477	/* Count the actual number of fans. */
478	sc->sc_nfans = adt746x_fill_fan_prop(dev);
479
480	device_printf(dev, "%d fans detected!\n", sc->sc_nfans);
481
482	if (sc->sc_nfans == 0) {
483		device_printf(dev, "WARNING: No fans detected!\n");
484		return;
485	}
486
487	ctx = device_get_sysctl_ctx(dev);
488	fanroot_oid = SYSCTL_ADD_NODE(ctx,
489	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "fans",
490	    CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "ADT Fan Information");
491
492	/* Now we can fill the properties into the allocated struct. */
493	sc->sc_nfans = adt746x_fill_fan_prop(dev);
494
495	/* Register fans with pmac_thermal */
496	for (i = 0; i < sc->sc_nfans; i++)
497		pmac_thermal_fan_register(&sc->sc_fans[i].fan);
498
499	/* Add sysctls for the fans. */
500	for (i = 0; i < sc->sc_nfans; i++) {
501		for (j = 0; j < strlen(sc->sc_fans[i].fan.name); j++) {
502			sysctl_name[j] = tolower(sc->sc_fans[i].fan.name[j]);
503			if (isspace(sysctl_name[j]))
504				sysctl_name[j] = '_';
505		}
506		sysctl_name[j] = 0;
507
508		sc->sc_fans[i].setpoint =
509			adt746x_fan_get_pwm(&sc->sc_fans[i]);
510
511		oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(fanroot_oid),
512		    OID_AUTO, sysctl_name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
513		    "Fan Information");
514
515		/* I use i to pass the fan id. */
516		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
517		    "pwm", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, dev,
518		    i, adt746x_fanrpm_sysctl, "I", "Fan PWM in %");
519	}
520
521	/* Dump fan location & type. */
522	if (bootverbose) {
523		for (i = 0; i < sc->sc_nfans; i++) {
524			device_printf(dev, "Fan location: %s",
525				      sc->sc_fans[i].fan.name);
526			device_printf(dev, " id: %d RPM: %d\n",
527				      sc->sc_fans[i].id,
528				      sc->sc_fans[i].setpoint);
529		}
530	}
531}
532
533static int
534adt746x_sensor_read(struct adt746x_sensor *sens)
535{
536	struct adt746x_softc *sc;
537	int tmp = 0;
538	uint16_t val;
539	uint8_t data[1], data1[1];
540	int8_t temp;
541
542	sc = device_get_softc(sens->dev);
543	if (sens->type != ADT746X_SENSOR_SPEED) {
544		if (adt746x_read(sc->sc_dev, sc->sc_addr, sens->reg,
545				 &temp) < 0)
546			return (-1);
547		if (sens->type == ADT746X_SENSOR_TEMP)
548			tmp = 10 * temp + ZERO_C_TO_K;
549		else
550			tmp = temp;
551	} else {
552		if (adt746x_read(sc->sc_dev, sc->sc_addr, sens->reg,
553				 data) < 0)
554			return (-1);
555		if (adt746x_read(sc->sc_dev, sc->sc_addr, sens->reg + 1,
556				 data1) < 0)
557			return (-1);
558		val = data[0] + (data1[0] << 8);
559		/* A value of 0xffff means the fan is stopped.  */
560		if (val == 0 || val == 0xffff)
561			tmp = 0;
562		else
563			tmp = (90000 * 60) / val;
564	}
565	return (tmp);
566}
567
568static int
569adt746x_sensor_sysctl(SYSCTL_HANDLER_ARGS)
570{
571	device_t dev;
572	struct adt746x_softc *sc;
573	struct adt746x_sensor *sens;
574	int value, error;
575
576	dev = arg1;
577	sc = device_get_softc(dev);
578	sens = &sc->sc_sensors[arg2];
579
580	value = sens->therm.read(&sens->therm);
581	if (value < 0)
582		return (ENXIO);
583
584	error = sysctl_handle_int(oidp, &value, 0, req);
585
586	return (error);
587}
588
589static void
590adt746x_attach_sensors(device_t dev)
591{
592	struct adt746x_softc *sc;
593	struct sysctl_oid *oid, *sensroot_oid;
594	struct sysctl_ctx_list *ctx;
595	char sysctl_name[40];
596	const char *unit;
597	const char *desc;
598	int i, j;
599
600
601	sc = device_get_softc(dev);
602	sc->sc_nsensors = 0;
603
604	/* Count the actual number of sensors. */
605	sc->sc_nsensors = adt746x_fill_sensor_prop(dev);
606	device_printf(dev, "%d sensors detected!\n", sc->sc_nsensors);
607	if (sc->sc_nsensors == 0) {
608		device_printf(dev, "WARNING: No sensors detected!\n");
609		return;
610	}
611
612	ctx = device_get_sysctl_ctx(dev);
613	sensroot_oid = SYSCTL_ADD_NODE(ctx,
614	    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensors",
615	    CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "ADT Sensor Information");
616
617	/* Add the sysctl for the sensors. */
618	for (i = 0; i < sc->sc_nsensors; i++) {
619		for (j = 0; j < strlen(sc->sc_sensors[i].therm.name); j++) {
620			sysctl_name[j] = tolower(sc->sc_sensors[i].therm.name[j]);
621			if (isspace(sysctl_name[j]))
622				sysctl_name[j] = '_';
623		}
624		sysctl_name[j] = 0;
625		oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid),
626		    OID_AUTO, sysctl_name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
627		    "Sensor Information");
628		if (sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP) {
629			unit = "temp";
630			desc = "sensor unit (C)";
631		} else if (sc->sc_sensors[i].type == ADT746X_SENSOR_VOLT) {
632			unit = "volt";
633			desc = "sensor unit (mV)";
634		} else {
635			unit = "rpm";
636			desc = "sensor unit (RPM)";
637		}
638		/* I use i to pass the sensor id. */
639		SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
640		    unit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, dev, i,
641		    adt746x_sensor_sysctl,
642		    sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP ?
643		    "IK" : "I", desc);
644	}
645
646	/* Dump sensor location & type. */
647	if (bootverbose) {
648		for (i = 0; i < sc->sc_nsensors; i++) {
649			device_printf(dev, "Sensor location: %s",
650				      sc->sc_sensors[i].therm.name);
651			device_printf(dev, " type: %d id: %d reg: 0x%x\n",
652				      sc->sc_sensors[i].type,
653				      sc->sc_sensors[i].id,
654				      sc->sc_sensors[i].reg);
655		}
656	}
657}
658