2 * nct6775 - Driver for the hardware monitoring functionality of
3 * Nuvoton NCT677x Super-I/O chips
5 * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net>
7 * Derived from w83627ehf driver
8 * Copyright (C) 2005-2012 Jean Delvare <khali@linux-fr.org>
9 * Copyright (C) 2006 Yuan Mu (Winbond),
10 * Rudolf Marek <r.marek@assembler.cz>
11 * David Hubbard <david.c.hubbard@gmail.com>
12 * Daniel J Blueman <daniel.blueman@gmail.com>
13 * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
15 * Shamelessly ripped from the w83627hf driver
16 * Copyright (C) 2003 Mark Studebaker
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 * Supports the following chips:
35 * Chip #vin #fan #pwm #temp chip IDs man ID
36 * nct6106d 9 3 3 6+3 0xc450 0xc1 0x5ca3
37 * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3
38 * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3
39 * nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3
40 * nct6791d 15 6 6 2+6 0xc800 0xc1 0x5ca3
42 * #temp lists the number of monitored temperature sources (first value) plus
43 * the number of directly connectable temperature sensors (second value).
46 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
48 #include <linux/module.h>
49 #include <linux/init.h>
50 #include <linux/slab.h>
51 #include <linux/jiffies.h>
52 #include <linux/platform_device.h>
53 #include <linux/hwmon.h>
54 #include <linux/hwmon-sysfs.h>
55 #include <linux/hwmon-vid.h>
56 #include <linux/err.h>
57 #include <linux/mutex.h>
58 #include <linux/acpi.h>
64 enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791 };
66 /* used to set data->name = nct6775_device_names[data->sio_kind] */
67 static const char * const nct6775_device_names[] = {
75 static unsigned short force_id;
76 module_param(force_id, ushort, 0);
77 MODULE_PARM_DESC(force_id, "Override the detected device ID");
79 static unsigned short fan_debounce;
80 module_param(fan_debounce, ushort, 0);
81 MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
83 #define DRVNAME "nct6775"
86 * Super-I/O constants and functions
89 #define NCT6775_LD_ACPI 0x0a
90 #define NCT6775_LD_HWM 0x0b
91 #define NCT6775_LD_VID 0x0d
93 #define SIO_REG_LDSEL 0x07 /* Logical device select */
94 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
95 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
96 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
98 #define SIO_NCT6106_ID 0xc450
99 #define SIO_NCT6775_ID 0xb470
100 #define SIO_NCT6776_ID 0xc330
101 #define SIO_NCT6779_ID 0xc560
102 #define SIO_NCT6791_ID 0xc800
103 #define SIO_ID_MASK 0xFFF0
105 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
108 superio_outb(int ioreg, int reg, int val)
111 outb(val, ioreg + 1);
115 superio_inb(int ioreg, int reg)
118 return inb(ioreg + 1);
122 superio_select(int ioreg, int ld)
124 outb(SIO_REG_LDSEL, ioreg);
129 superio_enter(int ioreg)
132 * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
134 if (!request_muxed_region(ioreg, 2, DRVNAME))
144 superio_exit(int ioreg)
148 outb(0x02, ioreg + 1);
149 release_region(ioreg, 2);
156 #define IOREGION_ALIGNMENT (~7)
157 #define IOREGION_OFFSET 5
158 #define IOREGION_LENGTH 2
159 #define ADDR_REG_OFFSET 0
160 #define DATA_REG_OFFSET 1
162 #define NCT6775_REG_BANK 0x4E
163 #define NCT6775_REG_CONFIG 0x40
166 * Not currently used:
167 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
168 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
169 * REG_MAN_ID is at port 0x4f
170 * REG_CHIP_ID is at port 0x58
173 #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
174 #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
176 #define NUM_REG_ALARM 7 /* Max number of alarm registers */
177 #define NUM_REG_BEEP 5 /* Max number of beep registers */
181 /* Common and NCT6775 specific data */
183 /* Voltage min/max registers for nr=7..14 are in bank 5 */
185 static const u16 NCT6775_REG_IN_MAX[] = {
186 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a,
187 0x55c, 0x55e, 0x560, 0x562 };
188 static const u16 NCT6775_REG_IN_MIN[] = {
189 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b,
190 0x55d, 0x55f, 0x561, 0x563 };
191 static const u16 NCT6775_REG_IN[] = {
192 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
195 #define NCT6775_REG_VBAT 0x5D
196 #define NCT6775_REG_DIODE 0x5E
197 #define NCT6775_DIODE_MASK 0x02
199 #define NCT6775_REG_FANDIV1 0x506
200 #define NCT6775_REG_FANDIV2 0x507
202 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
204 static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B };
206 /* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */
208 static const s8 NCT6775_ALARM_BITS[] = {
209 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
210 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
212 6, 7, 11, -1, -1, /* fan1..fan5 */
213 -1, -1, -1, /* unused */
214 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
215 12, -1 }; /* intrusion0, intrusion1 */
217 #define FAN_ALARM_BASE 16
218 #define TEMP_ALARM_BASE 24
219 #define INTRUSION_ALARM_BASE 30
221 static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e };
224 * 0..14 voltages, 15 global beep enable, 16..23 fans, 24..29 temperatures,
227 static const s8 NCT6775_BEEP_BITS[] = {
228 0, 1, 2, 3, 8, 9, 10, 16, /* in0.. in7 */
229 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
230 21, /* global beep enable */
231 6, 7, 11, 28, -1, /* fan1..fan5 */
232 -1, -1, -1, /* unused */
233 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
234 12, -1 }; /* intrusion0, intrusion1 */
236 #define BEEP_ENABLE_BASE 15
238 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
239 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
241 /* DC or PWM output fan configuration */
242 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
243 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
245 /* Advanced Fan control, some values are common for all fans */
247 static const u16 NCT6775_REG_TARGET[] = {
248 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01 };
249 static const u16 NCT6775_REG_FAN_MODE[] = {
250 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02 };
251 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
252 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03 };
253 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
254 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04 };
255 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
256 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05 };
257 static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
258 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06 };
259 static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
260 static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
262 static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
263 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07 };
264 static const u16 NCT6775_REG_PWM[] = {
265 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09 };
266 static const u16 NCT6775_REG_PWM_READ[] = {
267 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09 };
269 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
270 static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
271 static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 };
272 static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 };
274 static const u16 NCT6775_REG_TEMP[] = {
275 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
277 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
279 static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
280 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
281 static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
282 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
283 static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
284 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
286 static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
287 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
289 static const u16 NCT6775_REG_TEMP_SEL[] = {
290 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00 };
292 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {
293 0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 };
294 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = {
295 0x13a, 0x23a, 0x33a, 0x83a, 0x93a, 0xa3a };
296 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = {
297 0x13b, 0x23b, 0x33b, 0x83b, 0x93b, 0xa3b };
298 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = {
299 0x13c, 0x23c, 0x33c, 0x83c, 0x93c, 0xa3c };
300 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {
301 0x13d, 0x23d, 0x33d, 0x83d, 0x93d, 0xa3d };
303 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
305 static const u16 NCT6775_REG_AUTO_TEMP[] = {
306 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21 };
307 static const u16 NCT6775_REG_AUTO_PWM[] = {
308 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27 };
310 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
311 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
313 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
315 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
316 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35 };
317 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
318 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38 };
320 static const char *const nct6775_temp_label[] = {
334 "PCH_CHIP_CPU_MAX_TEMP",
344 static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
345 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
347 static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
348 = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06,
351 /* NCT6776 specific data */
353 static const s8 NCT6776_ALARM_BITS[] = {
354 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
355 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
357 6, 7, 11, 10, 23, /* fan1..fan5 */
358 -1, -1, -1, /* unused */
359 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
360 12, 9 }; /* intrusion0, intrusion1 */
362 static const u16 NCT6776_REG_BEEP[NUM_REG_BEEP] = { 0xb2, 0xb3, 0xb4, 0xb5 };
364 static const s8 NCT6776_BEEP_BITS[] = {
365 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
366 8, -1, -1, -1, -1, -1, -1, /* in8..in14 */
367 24, /* global beep enable */
368 25, 26, 27, 28, 29, /* fan1..fan5 */
369 -1, -1, -1, /* unused */
370 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
371 30, 31 }; /* intrusion0, intrusion1 */
373 static const u16 NCT6776_REG_TOLERANCE_H[] = {
374 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c };
376 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 };
377 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 };
379 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 };
380 static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
382 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {
383 0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e };
385 static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
386 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
388 static const char *const nct6776_temp_label[] = {
403 "PCH_CHIP_CPU_MAX_TEMP",
414 static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
415 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
417 static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
418 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
420 /* NCT6779 specific data */
422 static const u16 NCT6779_REG_IN[] = {
423 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
424 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e };
426 static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = {
427 0x459, 0x45A, 0x45B, 0x568 };
429 static const s8 NCT6779_ALARM_BITS[] = {
430 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
431 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
433 6, 7, 11, 10, 23, /* fan1..fan5 */
434 -1, -1, -1, /* unused */
435 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
436 12, 9 }; /* intrusion0, intrusion1 */
438 static const s8 NCT6779_BEEP_BITS[] = {
439 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
440 8, 9, 10, 11, 12, 13, 14, /* in8..in14 */
441 24, /* global beep enable */
442 25, 26, 27, 28, 29, /* fan1..fan5 */
443 -1, -1, -1, /* unused */
444 16, 17, -1, -1, -1, -1, /* temp1..temp6 */
445 30, 31 }; /* intrusion0, intrusion1 */
447 static const u16 NCT6779_REG_FAN[] = {
448 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba };
449 static const u16 NCT6779_REG_FAN_PULSES[] = {
450 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
452 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
453 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36 };
454 #define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
455 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
456 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
458 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
459 static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
460 static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
462 static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
464 static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
467 static const u16 NCT6779_REG_TEMP_OFFSET[] = {
468 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
470 static const char *const nct6779_temp_label[] = {
489 "PCH_CHIP_CPU_MAX_TEMP",
500 static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
501 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
502 0, 0, 0, 0, 0, 0, 0, 0,
503 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
506 static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
507 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
509 /* NCT6791 specific data */
511 #define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
513 static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 };
514 static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a };
515 static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b };
516 static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c };
517 static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d };
518 static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 0, 0x23e };
520 static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
521 0x459, 0x45A, 0x45B, 0x568, 0x45D };
523 static const s8 NCT6791_ALARM_BITS[] = {
524 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
525 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
527 6, 7, 11, 10, 23, 33, /* fan1..fan6 */
529 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
530 12, 9 }; /* intrusion0, intrusion1 */
533 /* NCT6102D/NCT6106D specific data */
535 #define NCT6106_REG_VBAT 0x318
536 #define NCT6106_REG_DIODE 0x319
537 #define NCT6106_DIODE_MASK 0x01
539 static const u16 NCT6106_REG_IN_MAX[] = {
540 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 };
541 static const u16 NCT6106_REG_IN_MIN[] = {
542 0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 };
543 static const u16 NCT6106_REG_IN[] = {
544 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
546 static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
547 static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
548 static const u16 NCT6106_REG_TEMP_HYST[] = {
549 0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
550 static const u16 NCT6106_REG_TEMP_OVER[] = {
551 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 };
552 static const u16 NCT6106_REG_TEMP_CRIT_L[] = {
553 0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 };
554 static const u16 NCT6106_REG_TEMP_CRIT_H[] = {
555 0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 };
556 static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
557 static const u16 NCT6106_REG_TEMP_CONFIG[] = {
558 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc };
560 static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 };
561 static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 };
562 static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0, 0 };
563 static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4, 0, 0 };
565 static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
566 static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
567 static const u16 NCT6106_REG_PWM[] = { 0x119, 0x129, 0x139 };
568 static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
569 static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 };
570 static const u16 NCT6106_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130 };
571 static const u16 NCT6106_REG_TEMP_SOURCE[] = {
572 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 };
574 static const u16 NCT6106_REG_CRITICAL_TEMP[] = { 0x11a, 0x12a, 0x13a };
575 static const u16 NCT6106_REG_CRITICAL_TEMP_TOLERANCE[] = {
576 0x11b, 0x12b, 0x13b };
578 static const u16 NCT6106_REG_CRITICAL_PWM_ENABLE[] = { 0x11c, 0x12c, 0x13c };
579 #define NCT6106_CRITICAL_PWM_ENABLE_MASK 0x10
580 static const u16 NCT6106_REG_CRITICAL_PWM[] = { 0x11d, 0x12d, 0x13d };
582 static const u16 NCT6106_REG_FAN_STEP_UP_TIME[] = { 0x114, 0x124, 0x134 };
583 static const u16 NCT6106_REG_FAN_STEP_DOWN_TIME[] = { 0x115, 0x125, 0x135 };
584 static const u16 NCT6106_REG_FAN_STOP_OUTPUT[] = { 0x116, 0x126, 0x136 };
585 static const u16 NCT6106_REG_FAN_START_OUTPUT[] = { 0x117, 0x127, 0x137 };
586 static const u16 NCT6106_REG_FAN_STOP_TIME[] = { 0x118, 0x128, 0x138 };
587 static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 };
589 static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 };
591 static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
592 static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
593 static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
594 static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x17c };
595 static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
596 static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
598 static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 };
599 static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 };
601 static const u16 NCT6106_REG_ALARM[NUM_REG_ALARM] = {
602 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d };
604 static const s8 NCT6106_ALARM_BITS[] = {
605 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
606 9, -1, -1, -1, -1, -1, -1, /* in8..in14 */
608 32, 33, 34, -1, -1, /* fan1..fan5 */
609 -1, -1, -1, /* unused */
610 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
611 48, -1 /* intrusion0, intrusion1 */
614 static const u16 NCT6106_REG_BEEP[NUM_REG_BEEP] = {
615 0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 };
617 static const s8 NCT6106_BEEP_BITS[] = {
618 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
619 9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
620 32, /* global beep enable */
621 24, 25, 26, 27, 28, /* fan1..fan5 */
622 -1, -1, -1, /* unused */
623 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
624 34, -1 /* intrusion0, intrusion1 */
627 static const u16 NCT6106_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
628 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x51, 0x52, 0x54 };
630 static const u16 NCT6106_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
631 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x204, 0x205 };
633 static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
635 if (mode == 0 && pwm == 255)
640 static int pwm_enable_to_reg(enum pwm_enable mode)
651 /* 1 is DC mode, output in ms */
652 static unsigned int step_time_from_reg(u8 reg, u8 mode)
654 return mode ? 400 * reg : 100 * reg;
657 static u8 step_time_to_reg(unsigned int msec, u8 mode)
659 return clamp_val((mode ? (msec + 200) / 400 :
660 (msec + 50) / 100), 1, 255);
663 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
665 if (reg == 0 || reg == 255)
667 return 1350000U / (reg << divreg);
670 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
672 if ((reg & 0xff1f) == 0xff1f)
675 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
680 return 1350000U / reg;
683 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
685 if (reg == 0 || reg == 0xffff)
689 * Even though the registers are 16 bit wide, the fan divisor
692 return 1350000U / (reg << divreg);
695 static u16 fan_to_reg(u32 fan, unsigned int divreg)
700 return (1350000U / fan) >> divreg;
703 static inline unsigned int
710 * Some of the voltage inputs have internal scaling, the tables below
711 * contain 8 (the ADC LSB in mV) * scaling factor * 100
713 static const u16 scale_in[15] = {
714 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
718 static inline long in_from_reg(u8 reg, u8 nr)
720 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
723 static inline u8 in_to_reg(u32 val, u8 nr)
725 return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255);
729 * Data structures and manipulation thereof
732 struct nct6775_data {
733 int addr; /* IO base of hw monitor block */
734 int sioreg; /* SIO register address */
739 const struct attribute_group *groups[6];
741 u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
742 * 3=temp_crit, 4=temp_lcrit
744 u8 temp_src[NUM_TEMP];
745 u16 reg_temp_config[NUM_TEMP];
746 const char * const *temp_label;
754 const s8 *ALARM_BITS;
758 const u16 *REG_IN_MINMAX[2];
760 const u16 *REG_TARGET;
762 const u16 *REG_FAN_MODE;
763 const u16 *REG_FAN_MIN;
764 const u16 *REG_FAN_PULSES;
765 const u16 *FAN_PULSE_SHIFT;
766 const u16 *REG_FAN_TIME[3];
768 const u16 *REG_TOLERANCE_H;
770 const u8 *REG_PWM_MODE;
771 const u8 *PWM_MODE_MASK;
773 const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
774 * [3]=pwm_max, [4]=pwm_step,
775 * [5]=weight_duty_step, [6]=weight_duty_base
777 const u16 *REG_PWM_READ;
779 const u16 *REG_CRITICAL_PWM_ENABLE;
780 u8 CRITICAL_PWM_ENABLE_MASK;
781 const u16 *REG_CRITICAL_PWM;
783 const u16 *REG_AUTO_TEMP;
784 const u16 *REG_AUTO_PWM;
786 const u16 *REG_CRITICAL_TEMP;
787 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
789 const u16 *REG_TEMP_SOURCE; /* temp register sources */
790 const u16 *REG_TEMP_SEL;
791 const u16 *REG_WEIGHT_TEMP_SEL;
792 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
794 const u16 *REG_TEMP_OFFSET;
796 const u16 *REG_ALARM;
799 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
800 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
802 struct mutex update_lock;
803 bool valid; /* true if following fields are valid */
804 unsigned long last_updated; /* In jiffies */
806 /* Register values */
807 u8 bank; /* current register bank */
808 u8 in_num; /* number of in inputs we have */
809 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
810 unsigned int rpm[NUM_FAN];
811 u16 fan_min[NUM_FAN];
812 u8 fan_pulses[NUM_FAN];
815 u8 has_fan; /* some fan inputs can be disabled */
816 u8 has_fan_min; /* some fans don't have min register */
819 u8 num_temp_alarms; /* 2, 3, or 6 */
820 u8 num_temp_beeps; /* 2, 3, or 6 */
821 u8 temp_fixed_num; /* 3 or 6 */
822 u8 temp_type[NUM_TEMP_FIXED];
823 s8 temp_offset[NUM_TEMP_FIXED];
824 s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
825 * 3=temp_crit, 4=temp_lcrit */
829 u8 pwm_num; /* number of pwm */
830 u8 pwm_mode[NUM_FAN]; /* 1->DC variable voltage,
831 * 0->PWM variable duty cycle
833 enum pwm_enable pwm_enable[NUM_FAN];
836 * 2->thermal cruise mode (also called SmartFan I)
837 * 3->fan speed cruise mode
839 * 5->enhanced variable thermal cruise (SmartFan IV)
841 u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
842 * [3]=pwm_max, [4]=pwm_step,
843 * [5]=weight_duty_step, [6]=weight_duty_base
846 u8 target_temp[NUM_FAN];
848 u32 target_speed[NUM_FAN];
849 u32 target_speed_tolerance[NUM_FAN];
850 u8 speed_tolerance_limit;
852 u8 temp_tolerance[2][NUM_FAN];
855 u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
857 /* Automatic fan speed control registers */
859 u8 auto_pwm[NUM_FAN][7];
860 u8 auto_temp[NUM_FAN][7];
861 u8 pwm_temp_sel[NUM_FAN];
862 u8 pwm_weight_temp_sel[NUM_FAN];
863 u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
876 /* Remember extra register values over suspend/resume */
883 struct nct6775_sio_data {
888 struct sensor_device_template {
889 struct device_attribute dev_attr;
897 bool s2; /* true if both index and nr are used */
900 struct sensor_device_attr_u {
902 struct sensor_device_attribute a1;
903 struct sensor_device_attribute_2 a2;
908 #define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \
909 .attr = {.name = _template, .mode = _mode }, \
914 #define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \
915 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
919 #define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
921 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
922 .u.s.index = _index, \
926 #define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \
927 static struct sensor_device_template sensor_dev_template_##_name \
928 = SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \
931 #define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \
933 static struct sensor_device_template sensor_dev_template_##_name \
934 = SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
937 struct sensor_template_group {
938 struct sensor_device_template **templates;
939 umode_t (*is_visible)(struct kobject *, struct attribute *, int);
943 static struct attribute_group *
944 nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
947 struct attribute_group *group;
948 struct sensor_device_attr_u *su;
949 struct sensor_device_attribute *a;
950 struct sensor_device_attribute_2 *a2;
951 struct attribute **attrs;
952 struct sensor_device_template **t;
956 return ERR_PTR(-EINVAL);
959 for (count = 0; *t; t++, count++)
963 return ERR_PTR(-EINVAL);
965 group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
967 return ERR_PTR(-ENOMEM);
969 attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1),
972 return ERR_PTR(-ENOMEM);
974 su = devm_kzalloc(dev, sizeof(*su) * repeat * count,
977 return ERR_PTR(-ENOMEM);
979 group->attrs = attrs;
980 group->is_visible = tg->is_visible;
982 for (i = 0; i < repeat; i++) {
985 snprintf(su->name, sizeof(su->name),
986 (*t)->dev_attr.attr.name, tg->base + i);
989 a2->dev_attr.attr.name = su->name;
990 a2->nr = (*t)->u.s.nr + i;
991 a2->index = (*t)->u.s.index;
992 a2->dev_attr.attr.mode =
993 (*t)->dev_attr.attr.mode;
994 a2->dev_attr.show = (*t)->dev_attr.show;
995 a2->dev_attr.store = (*t)->dev_attr.store;
996 *attrs = &a2->dev_attr.attr;
999 a->dev_attr.attr.name = su->name;
1000 a->index = (*t)->u.index + i;
1001 a->dev_attr.attr.mode =
1002 (*t)->dev_attr.attr.mode;
1003 a->dev_attr.show = (*t)->dev_attr.show;
1004 a->dev_attr.store = (*t)->dev_attr.store;
1005 *attrs = &a->dev_attr.attr;
1016 static bool is_word_sized(struct nct6775_data *data, u16 reg)
1018 switch (data->kind) {
1020 return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
1021 reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
1022 reg == 0x111 || reg == 0x121 || reg == 0x131;
1024 return (((reg & 0xff00) == 0x100 ||
1025 (reg & 0xff00) == 0x200) &&
1026 ((reg & 0x00ff) == 0x50 ||
1027 (reg & 0x00ff) == 0x53 ||
1028 (reg & 0x00ff) == 0x55)) ||
1029 (reg & 0xfff0) == 0x630 ||
1030 reg == 0x640 || reg == 0x642 ||
1032 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1033 reg == 0x73 || reg == 0x75 || reg == 0x77;
1035 return (((reg & 0xff00) == 0x100 ||
1036 (reg & 0xff00) == 0x200) &&
1037 ((reg & 0x00ff) == 0x50 ||
1038 (reg & 0x00ff) == 0x53 ||
1039 (reg & 0x00ff) == 0x55)) ||
1040 (reg & 0xfff0) == 0x630 ||
1042 reg == 0x640 || reg == 0x642 ||
1043 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1044 reg == 0x73 || reg == 0x75 || reg == 0x77;
1047 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
1048 ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
1050 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
1051 reg == 0x640 || reg == 0x642 ||
1052 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
1059 * On older chips, only registers 0x50-0x5f are banked.
1060 * On more recent chips, all registers are banked.
1061 * Assume that is the case and set the bank number for each access.
1062 * Cache the bank number so it only needs to be set if it changes.
1064 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
1067 if (data->bank != bank) {
1068 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
1069 outb_p(bank, data->addr + DATA_REG_OFFSET);
1074 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
1076 int res, word_sized = is_word_sized(data, reg);
1078 nct6775_set_bank(data, reg);
1079 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1080 res = inb_p(data->addr + DATA_REG_OFFSET);
1082 outb_p((reg & 0xff) + 1,
1083 data->addr + ADDR_REG_OFFSET);
1084 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
1089 static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
1091 int word_sized = is_word_sized(data, reg);
1093 nct6775_set_bank(data, reg);
1094 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1096 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
1097 outb_p((reg & 0xff) + 1,
1098 data->addr + ADDR_REG_OFFSET);
1100 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
1104 /* We left-align 8-bit temperature values to make the code simpler */
1105 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
1109 res = nct6775_read_value(data, reg);
1110 if (!is_word_sized(data, reg))
1116 static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
1118 if (!is_word_sized(data, reg))
1120 return nct6775_write_value(data, reg, value);
1123 /* This function assumes that the caller holds data->update_lock */
1124 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
1130 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
1131 | (data->fan_div[0] & 0x7);
1132 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1135 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
1136 | ((data->fan_div[1] << 4) & 0x70);
1137 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1140 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
1141 | (data->fan_div[2] & 0x7);
1142 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1145 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
1146 | ((data->fan_div[3] << 4) & 0x70);
1147 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1152 static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr)
1154 if (data->kind == nct6775)
1155 nct6775_write_fan_div(data, nr);
1158 static void nct6775_update_fan_div(struct nct6775_data *data)
1162 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
1163 data->fan_div[0] = i & 0x7;
1164 data->fan_div[1] = (i & 0x70) >> 4;
1165 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
1166 data->fan_div[2] = i & 0x7;
1167 if (data->has_fan & (1 << 3))
1168 data->fan_div[3] = (i & 0x70) >> 4;
1171 static void nct6775_update_fan_div_common(struct nct6775_data *data)
1173 if (data->kind == nct6775)
1174 nct6775_update_fan_div(data);
1177 static void nct6775_init_fan_div(struct nct6775_data *data)
1181 nct6775_update_fan_div_common(data);
1183 * For all fans, start with highest divider value if the divider
1184 * register is not initialized. This ensures that we get a
1185 * reading from the fan count register, even if it is not optimal.
1186 * We'll compute a better divider later on.
1188 for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) {
1189 if (!(data->has_fan & (1 << i)))
1191 if (data->fan_div[i] == 0) {
1192 data->fan_div[i] = 7;
1193 nct6775_write_fan_div_common(data, i);
1198 static void nct6775_init_fan_common(struct device *dev,
1199 struct nct6775_data *data)
1204 if (data->has_fan_div)
1205 nct6775_init_fan_div(data);
1208 * If fan_min is not set (0), set it to 0xff to disable it. This
1209 * prevents the unnecessary warning when fanX_min is reported as 0.
1211 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
1212 if (data->has_fan_min & (1 << i)) {
1213 reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
1215 nct6775_write_value(data, data->REG_FAN_MIN[i],
1216 data->has_fan_div ? 0xff
1222 static void nct6775_select_fan_div(struct device *dev,
1223 struct nct6775_data *data, int nr, u16 reg)
1225 u8 fan_div = data->fan_div[nr];
1228 if (!data->has_fan_div)
1232 * If we failed to measure the fan speed, or the reported value is not
1233 * in the optimal range, and the clock divider can be modified,
1234 * let's try that for next time.
1236 if (reg == 0x00 && fan_div < 0x07)
1238 else if (reg != 0x00 && reg < 0x30 && fan_div > 0)
1241 if (fan_div != data->fan_div[nr]) {
1242 dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n",
1243 nr + 1, div_from_reg(data->fan_div[nr]),
1244 div_from_reg(fan_div));
1246 /* Preserve min limit if possible */
1247 if (data->has_fan_min & (1 << nr)) {
1248 fan_min = data->fan_min[nr];
1249 if (fan_div > data->fan_div[nr]) {
1250 if (fan_min != 255 && fan_min > 1)
1253 if (fan_min != 255) {
1259 if (fan_min != data->fan_min[nr]) {
1260 data->fan_min[nr] = fan_min;
1261 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1265 data->fan_div[nr] = fan_div;
1266 nct6775_write_fan_div_common(data, nr);
1270 static void nct6775_update_pwm(struct device *dev)
1272 struct nct6775_data *data = dev_get_drvdata(dev);
1274 int fanmodecfg, reg;
1277 for (i = 0; i < data->pwm_num; i++) {
1278 if (!(data->has_pwm & (1 << i)))
1281 duty_is_dc = data->REG_PWM_MODE[i] &&
1282 (nct6775_read_value(data, data->REG_PWM_MODE[i])
1283 & data->PWM_MODE_MASK[i]);
1284 data->pwm_mode[i] = duty_is_dc;
1286 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
1287 for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
1288 if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
1290 = nct6775_read_value(data,
1291 data->REG_PWM[j][i]);
1295 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
1296 (fanmodecfg >> 4) & 7);
1298 if (!data->temp_tolerance[0][i] ||
1299 data->pwm_enable[i] != speed_cruise)
1300 data->temp_tolerance[0][i] = fanmodecfg & 0x0f;
1301 if (!data->target_speed_tolerance[i] ||
1302 data->pwm_enable[i] == speed_cruise) {
1303 u8 t = fanmodecfg & 0x0f;
1304 if (data->REG_TOLERANCE_H) {
1305 t |= (nct6775_read_value(data,
1306 data->REG_TOLERANCE_H[i]) & 0x70) >> 1;
1308 data->target_speed_tolerance[i] = t;
1311 data->temp_tolerance[1][i] =
1312 nct6775_read_value(data,
1313 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
1315 reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
1316 data->pwm_temp_sel[i] = reg & 0x1f;
1317 /* If fan can stop, report floor as 0 */
1319 data->pwm[2][i] = 0;
1321 if (!data->REG_WEIGHT_TEMP_SEL[i])
1324 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
1325 data->pwm_weight_temp_sel[i] = reg & 0x1f;
1326 /* If weight is disabled, report weight source as 0 */
1327 if (j == 1 && !(reg & 0x80))
1328 data->pwm_weight_temp_sel[i] = 0;
1330 /* Weight temp data */
1331 for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
1332 data->weight_temp[j][i]
1333 = nct6775_read_value(data,
1334 data->REG_WEIGHT_TEMP[j][i]);
1339 static void nct6775_update_pwm_limits(struct device *dev)
1341 struct nct6775_data *data = dev_get_drvdata(dev);
1346 for (i = 0; i < data->pwm_num; i++) {
1347 if (!(data->has_pwm & (1 << i)))
1350 for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
1351 data->fan_time[j][i] =
1352 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
1355 reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
1356 /* Update only in matching mode or if never updated */
1357 if (!data->target_temp[i] ||
1358 data->pwm_enable[i] == thermal_cruise)
1359 data->target_temp[i] = reg_t & data->target_temp_mask;
1360 if (!data->target_speed[i] ||
1361 data->pwm_enable[i] == speed_cruise) {
1362 if (data->REG_TOLERANCE_H) {
1363 reg_t |= (nct6775_read_value(data,
1364 data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
1366 data->target_speed[i] = reg_t;
1369 for (j = 0; j < data->auto_pwm_num; j++) {
1370 data->auto_pwm[i][j] =
1371 nct6775_read_value(data,
1372 NCT6775_AUTO_PWM(data, i, j));
1373 data->auto_temp[i][j] =
1374 nct6775_read_value(data,
1375 NCT6775_AUTO_TEMP(data, i, j));
1378 /* critical auto_pwm temperature data */
1379 data->auto_temp[i][data->auto_pwm_num] =
1380 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
1382 switch (data->kind) {
1384 reg = nct6775_read_value(data,
1385 NCT6775_REG_CRITICAL_ENAB[i]);
1386 data->auto_pwm[i][data->auto_pwm_num] =
1387 (reg & 0x02) ? 0xff : 0x00;
1390 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
1395 reg = nct6775_read_value(data,
1396 data->REG_CRITICAL_PWM_ENABLE[i]);
1397 if (reg & data->CRITICAL_PWM_ENABLE_MASK)
1398 reg = nct6775_read_value(data,
1399 data->REG_CRITICAL_PWM[i]);
1402 data->auto_pwm[i][data->auto_pwm_num] = reg;
1408 static struct nct6775_data *nct6775_update_device(struct device *dev)
1410 struct nct6775_data *data = dev_get_drvdata(dev);
1413 mutex_lock(&data->update_lock);
1415 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1417 /* Fan clock dividers */
1418 nct6775_update_fan_div_common(data);
1420 /* Measured voltages and limits */
1421 for (i = 0; i < data->in_num; i++) {
1422 if (!(data->have_in & (1 << i)))
1425 data->in[i][0] = nct6775_read_value(data,
1427 data->in[i][1] = nct6775_read_value(data,
1428 data->REG_IN_MINMAX[0][i]);
1429 data->in[i][2] = nct6775_read_value(data,
1430 data->REG_IN_MINMAX[1][i]);
1433 /* Measured fan speeds and limits */
1434 for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
1437 if (!(data->has_fan & (1 << i)))
1440 reg = nct6775_read_value(data, data->REG_FAN[i]);
1441 data->rpm[i] = data->fan_from_reg(reg,
1444 if (data->has_fan_min & (1 << i))
1445 data->fan_min[i] = nct6775_read_value(data,
1446 data->REG_FAN_MIN[i]);
1447 data->fan_pulses[i] =
1448 (nct6775_read_value(data, data->REG_FAN_PULSES[i])
1449 >> data->FAN_PULSE_SHIFT[i]) & 0x03;
1451 nct6775_select_fan_div(dev, data, i, reg);
1454 nct6775_update_pwm(dev);
1455 nct6775_update_pwm_limits(dev);
1457 /* Measured temperatures and limits */
1458 for (i = 0; i < NUM_TEMP; i++) {
1459 if (!(data->have_temp & (1 << i)))
1461 for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
1462 if (data->reg_temp[j][i])
1464 = nct6775_read_temp(data,
1465 data->reg_temp[j][i]);
1467 if (i >= NUM_TEMP_FIXED ||
1468 !(data->have_temp_fixed & (1 << i)))
1470 data->temp_offset[i]
1471 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
1475 for (i = 0; i < NUM_REG_ALARM; i++) {
1477 if (!data->REG_ALARM[i])
1479 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
1480 data->alarms |= ((u64)alarm) << (i << 3);
1484 for (i = 0; i < NUM_REG_BEEP; i++) {
1486 if (!data->REG_BEEP[i])
1488 beep = nct6775_read_value(data, data->REG_BEEP[i]);
1489 data->beeps |= ((u64)beep) << (i << 3);
1492 data->last_updated = jiffies;
1496 mutex_unlock(&data->update_lock);
1501 * Sysfs callback functions
1504 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
1506 struct nct6775_data *data = nct6775_update_device(dev);
1507 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1509 int index = sattr->index;
1510 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
1514 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1517 struct nct6775_data *data = dev_get_drvdata(dev);
1518 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1520 int index = sattr->index;
1522 int err = kstrtoul(buf, 10, &val);
1525 mutex_lock(&data->update_lock);
1526 data->in[nr][index] = in_to_reg(val, nr);
1527 nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr],
1528 data->in[nr][index]);
1529 mutex_unlock(&data->update_lock);
1534 show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1536 struct nct6775_data *data = nct6775_update_device(dev);
1537 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1538 int nr = data->ALARM_BITS[sattr->index];
1539 return sprintf(buf, "%u\n",
1540 (unsigned int)((data->alarms >> nr) & 0x01));
1543 static int find_temp_source(struct nct6775_data *data, int index, int count)
1545 int source = data->temp_src[index];
1548 for (nr = 0; nr < count; nr++) {
1551 src = nct6775_read_value(data,
1552 data->REG_TEMP_SOURCE[nr]) & 0x1f;
1560 show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1562 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1563 struct nct6775_data *data = nct6775_update_device(dev);
1564 unsigned int alarm = 0;
1568 * For temperatures, there is no fixed mapping from registers to alarm
1569 * bits. Alarm bits are determined by the temperature source mapping.
1571 nr = find_temp_source(data, sattr->index, data->num_temp_alarms);
1573 int bit = data->ALARM_BITS[nr + TEMP_ALARM_BASE];
1574 alarm = (data->alarms >> bit) & 0x01;
1576 return sprintf(buf, "%u\n", alarm);
1580 show_beep(struct device *dev, struct device_attribute *attr, char *buf)
1582 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1583 struct nct6775_data *data = nct6775_update_device(dev);
1584 int nr = data->BEEP_BITS[sattr->index];
1586 return sprintf(buf, "%u\n",
1587 (unsigned int)((data->beeps >> nr) & 0x01));
1591 store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
1594 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1595 struct nct6775_data *data = dev_get_drvdata(dev);
1596 int nr = data->BEEP_BITS[sattr->index];
1597 int regindex = nr >> 3;
1600 int err = kstrtoul(buf, 10, &val);
1606 mutex_lock(&data->update_lock);
1608 data->beeps |= (1ULL << nr);
1610 data->beeps &= ~(1ULL << nr);
1611 nct6775_write_value(data, data->REG_BEEP[regindex],
1612 (data->beeps >> (regindex << 3)) & 0xff);
1613 mutex_unlock(&data->update_lock);
1618 show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf)
1620 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1621 struct nct6775_data *data = nct6775_update_device(dev);
1622 unsigned int beep = 0;
1626 * For temperatures, there is no fixed mapping from registers to beep
1627 * enable bits. Beep enable bits are determined by the temperature
1630 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
1632 int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
1633 beep = (data->beeps >> bit) & 0x01;
1635 return sprintf(buf, "%u\n", beep);
1639 store_temp_beep(struct device *dev, struct device_attribute *attr,
1640 const char *buf, size_t count)
1642 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1643 struct nct6775_data *data = dev_get_drvdata(dev);
1644 int nr, bit, regindex;
1647 int err = kstrtoul(buf, 10, &val);
1653 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
1657 bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
1658 regindex = bit >> 3;
1660 mutex_lock(&data->update_lock);
1662 data->beeps |= (1ULL << bit);
1664 data->beeps &= ~(1ULL << bit);
1665 nct6775_write_value(data, data->REG_BEEP[regindex],
1666 (data->beeps >> (regindex << 3)) & 0xff);
1667 mutex_unlock(&data->update_lock);
1672 static umode_t nct6775_in_is_visible(struct kobject *kobj,
1673 struct attribute *attr, int index)
1675 struct device *dev = container_of(kobj, struct device, kobj);
1676 struct nct6775_data *data = dev_get_drvdata(dev);
1677 int in = index / 5; /* voltage index */
1679 if (!(data->have_in & (1 << in)))
1685 SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
1686 SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0);
1687 SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep,
1689 SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg,
1690 store_in_reg, 0, 1);
1691 SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, show_in_reg,
1692 store_in_reg, 0, 2);
1695 * nct6775_in_is_visible uses the index into the following array
1696 * to determine if attributes should be created or not.
1697 * Any change in order or content must be matched.
1699 static struct sensor_device_template *nct6775_attributes_in_template[] = {
1700 &sensor_dev_template_in_input,
1701 &sensor_dev_template_in_alarm,
1702 &sensor_dev_template_in_beep,
1703 &sensor_dev_template_in_min,
1704 &sensor_dev_template_in_max,
1708 static struct sensor_template_group nct6775_in_template_group = {
1709 .templates = nct6775_attributes_in_template,
1710 .is_visible = nct6775_in_is_visible,
1714 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1716 struct nct6775_data *data = nct6775_update_device(dev);
1717 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1718 int nr = sattr->index;
1719 return sprintf(buf, "%d\n", data->rpm[nr]);
1723 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1725 struct nct6775_data *data = nct6775_update_device(dev);
1726 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1727 int nr = sattr->index;
1728 return sprintf(buf, "%d\n",
1729 data->fan_from_reg_min(data->fan_min[nr],
1730 data->fan_div[nr]));
1734 show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1736 struct nct6775_data *data = nct6775_update_device(dev);
1737 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1738 int nr = sattr->index;
1739 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1743 store_fan_min(struct device *dev, struct device_attribute *attr,
1744 const char *buf, size_t count)
1746 struct nct6775_data *data = dev_get_drvdata(dev);
1747 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1748 int nr = sattr->index;
1754 err = kstrtoul(buf, 10, &val);
1758 mutex_lock(&data->update_lock);
1759 if (!data->has_fan_div) {
1760 /* NCT6776F or NCT6779D; we know this is a 13 bit register */
1766 val = 1350000U / val;
1767 val = (val & 0x1f) | ((val << 3) & 0xff00);
1769 data->fan_min[nr] = val;
1770 goto write_min; /* Leave fan divider alone */
1773 /* No min limit, alarm disabled */
1774 data->fan_min[nr] = 255;
1775 new_div = data->fan_div[nr]; /* No change */
1776 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1779 reg = 1350000U / val;
1780 if (reg >= 128 * 255) {
1782 * Speed below this value cannot possibly be represented,
1783 * even with the highest divider (128)
1785 data->fan_min[nr] = 254;
1786 new_div = 7; /* 128 == (1 << 7) */
1788 "fan%u low limit %lu below minimum %u, set to minimum\n",
1789 nr + 1, val, data->fan_from_reg_min(254, 7));
1792 * Speed above this value cannot possibly be represented,
1793 * even with the lowest divider (1)
1795 data->fan_min[nr] = 1;
1796 new_div = 0; /* 1 == (1 << 0) */
1798 "fan%u low limit %lu above maximum %u, set to maximum\n",
1799 nr + 1, val, data->fan_from_reg_min(1, 0));
1802 * Automatically pick the best divider, i.e. the one such
1803 * that the min limit will correspond to a register value
1804 * in the 96..192 range
1807 while (reg > 192 && new_div < 7) {
1811 data->fan_min[nr] = reg;
1816 * Write both the fan clock divider (if it changed) and the new
1817 * fan min (unconditionally)
1819 if (new_div != data->fan_div[nr]) {
1820 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1821 nr + 1, div_from_reg(data->fan_div[nr]),
1822 div_from_reg(new_div));
1823 data->fan_div[nr] = new_div;
1824 nct6775_write_fan_div_common(data, nr);
1825 /* Give the chip time to sample a new speed value */
1826 data->last_updated = jiffies;
1830 nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
1831 mutex_unlock(&data->update_lock);
1837 show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
1839 struct nct6775_data *data = nct6775_update_device(dev);
1840 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1841 int p = data->fan_pulses[sattr->index];
1843 return sprintf(buf, "%d\n", p ? : 4);
1847 store_fan_pulses(struct device *dev, struct device_attribute *attr,
1848 const char *buf, size_t count)
1850 struct nct6775_data *data = dev_get_drvdata(dev);
1851 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1852 int nr = sattr->index;
1857 err = kstrtoul(buf, 10, &val);
1864 mutex_lock(&data->update_lock);
1865 data->fan_pulses[nr] = val & 3;
1866 reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]);
1867 reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
1868 reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
1869 nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
1870 mutex_unlock(&data->update_lock);
1875 static umode_t nct6775_fan_is_visible(struct kobject *kobj,
1876 struct attribute *attr, int index)
1878 struct device *dev = container_of(kobj, struct device, kobj);
1879 struct nct6775_data *data = dev_get_drvdata(dev);
1880 int fan = index / 6; /* fan index */
1881 int nr = index % 6; /* attribute index */
1883 if (!(data->has_fan & (1 << fan)))
1886 if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1)
1888 if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
1890 if (nr == 4 && !(data->has_fan_min & (1 << fan)))
1892 if (nr == 5 && data->kind != nct6775)
1898 SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
1899 SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL,
1901 SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep,
1902 store_beep, FAN_ALARM_BASE);
1903 SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses,
1904 store_fan_pulses, 0);
1905 SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min,
1907 SENSOR_TEMPLATE(fan_div, "fan%d_div", S_IRUGO, show_fan_div, NULL, 0);
1910 * nct6775_fan_is_visible uses the index into the following array
1911 * to determine if attributes should be created or not.
1912 * Any change in order or content must be matched.
1914 static struct sensor_device_template *nct6775_attributes_fan_template[] = {
1915 &sensor_dev_template_fan_input,
1916 &sensor_dev_template_fan_alarm, /* 1 */
1917 &sensor_dev_template_fan_beep, /* 2 */
1918 &sensor_dev_template_fan_pulses,
1919 &sensor_dev_template_fan_min, /* 4 */
1920 &sensor_dev_template_fan_div, /* 5 */
1924 static struct sensor_template_group nct6775_fan_template_group = {
1925 .templates = nct6775_attributes_fan_template,
1926 .is_visible = nct6775_fan_is_visible,
1931 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1933 struct nct6775_data *data = nct6775_update_device(dev);
1934 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1935 int nr = sattr->index;
1936 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1940 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1942 struct nct6775_data *data = nct6775_update_device(dev);
1943 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1945 int index = sattr->index;
1947 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1951 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1954 struct nct6775_data *data = dev_get_drvdata(dev);
1955 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1957 int index = sattr->index;
1961 err = kstrtol(buf, 10, &val);
1965 mutex_lock(&data->update_lock);
1966 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1967 nct6775_write_temp(data, data->reg_temp[index][nr],
1968 data->temp[index][nr]);
1969 mutex_unlock(&data->update_lock);
1974 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1976 struct nct6775_data *data = nct6775_update_device(dev);
1977 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1979 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
1983 store_temp_offset(struct device *dev, struct device_attribute *attr,
1984 const char *buf, size_t count)
1986 struct nct6775_data *data = dev_get_drvdata(dev);
1987 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1988 int nr = sattr->index;
1992 err = kstrtol(buf, 10, &val);
1996 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1998 mutex_lock(&data->update_lock);
1999 data->temp_offset[nr] = val;
2000 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
2001 mutex_unlock(&data->update_lock);
2007 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
2009 struct nct6775_data *data = nct6775_update_device(dev);
2010 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2011 int nr = sattr->index;
2012 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
2016 store_temp_type(struct device *dev, struct device_attribute *attr,
2017 const char *buf, size_t count)
2019 struct nct6775_data *data = nct6775_update_device(dev);
2020 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2021 int nr = sattr->index;
2024 u8 vbat, diode, vbit, dbit;
2026 err = kstrtoul(buf, 10, &val);
2030 if (val != 1 && val != 3 && val != 4)
2033 mutex_lock(&data->update_lock);
2035 data->temp_type[nr] = val;
2037 dbit = data->DIODE_MASK << nr;
2038 vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit;
2039 diode = nct6775_read_value(data, data->REG_DIODE) & ~dbit;
2041 case 1: /* CPU diode (diode, current mode) */
2045 case 3: /* diode, voltage mode */
2048 case 4: /* thermistor */
2051 nct6775_write_value(data, data->REG_VBAT, vbat);
2052 nct6775_write_value(data, data->REG_DIODE, diode);
2054 mutex_unlock(&data->update_lock);
2058 static umode_t nct6775_temp_is_visible(struct kobject *kobj,
2059 struct attribute *attr, int index)
2061 struct device *dev = container_of(kobj, struct device, kobj);
2062 struct nct6775_data *data = dev_get_drvdata(dev);
2063 int temp = index / 10; /* temp index */
2064 int nr = index % 10; /* attribute index */
2066 if (!(data->have_temp & (1 << temp)))
2069 if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
2070 return 0; /* alarm */
2072 if (nr == 3 && find_temp_source(data, temp, data->num_temp_beeps) < 0)
2073 return 0; /* beep */
2075 if (nr == 4 && !data->reg_temp[1][temp]) /* max */
2078 if (nr == 5 && !data->reg_temp[2][temp]) /* max_hyst */
2081 if (nr == 6 && !data->reg_temp[3][temp]) /* crit */
2084 if (nr == 7 && !data->reg_temp[4][temp]) /* lcrit */
2087 /* offset and type only apply to fixed sensors */
2088 if (nr > 7 && !(data->have_temp_fixed & (1 << temp)))
2094 SENSOR_TEMPLATE_2(temp_input, "temp%d_input", S_IRUGO, show_temp, NULL, 0, 0);
2095 SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
2096 SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO | S_IWUSR, show_temp,
2098 SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR,
2099 show_temp, store_temp, 0, 2);
2100 SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp,
2102 SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp,
2104 SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR,
2105 show_temp_offset, store_temp_offset, 0);
2106 SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type,
2107 store_temp_type, 0);
2108 SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", S_IRUGO, show_temp_alarm, NULL, 0);
2109 SENSOR_TEMPLATE(temp_beep, "temp%d_beep", S_IRUGO | S_IWUSR, show_temp_beep,
2110 store_temp_beep, 0);
2113 * nct6775_temp_is_visible uses the index into the following array
2114 * to determine if attributes should be created or not.
2115 * Any change in order or content must be matched.
2117 static struct sensor_device_template *nct6775_attributes_temp_template[] = {
2118 &sensor_dev_template_temp_input,
2119 &sensor_dev_template_temp_label,
2120 &sensor_dev_template_temp_alarm, /* 2 */
2121 &sensor_dev_template_temp_beep, /* 3 */
2122 &sensor_dev_template_temp_max, /* 4 */
2123 &sensor_dev_template_temp_max_hyst, /* 5 */
2124 &sensor_dev_template_temp_crit, /* 6 */
2125 &sensor_dev_template_temp_lcrit, /* 7 */
2126 &sensor_dev_template_temp_offset, /* 8 */
2127 &sensor_dev_template_temp_type, /* 9 */
2131 static struct sensor_template_group nct6775_temp_template_group = {
2132 .templates = nct6775_attributes_temp_template,
2133 .is_visible = nct6775_temp_is_visible,
2138 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
2140 struct nct6775_data *data = nct6775_update_device(dev);
2141 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2143 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
2147 store_pwm_mode(struct device *dev, struct device_attribute *attr,
2148 const char *buf, size_t count)
2150 struct nct6775_data *data = dev_get_drvdata(dev);
2151 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2152 int nr = sattr->index;
2157 err = kstrtoul(buf, 10, &val);
2164 /* Setting DC mode is not supported for all chips/channels */
2165 if (data->REG_PWM_MODE[nr] == 0) {
2171 mutex_lock(&data->update_lock);
2172 data->pwm_mode[nr] = val;
2173 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
2174 reg &= ~data->PWM_MODE_MASK[nr];
2176 reg |= data->PWM_MODE_MASK[nr];
2177 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
2178 mutex_unlock(&data->update_lock);
2183 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2185 struct nct6775_data *data = nct6775_update_device(dev);
2186 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2188 int index = sattr->index;
2192 * For automatic fan control modes, show current pwm readings.
2193 * Otherwise, show the configured value.
2195 if (index == 0 && data->pwm_enable[nr] > manual)
2196 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
2198 pwm = data->pwm[index][nr];
2200 return sprintf(buf, "%d\n", pwm);
2204 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
2207 struct nct6775_data *data = dev_get_drvdata(dev);
2208 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2210 int index = sattr->index;
2212 int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
2214 = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
2218 err = kstrtoul(buf, 10, &val);
2221 val = clamp_val(val, minval[index], maxval[index]);
2223 mutex_lock(&data->update_lock);
2224 data->pwm[index][nr] = val;
2225 nct6775_write_value(data, data->REG_PWM[index][nr], val);
2226 if (index == 2) { /* floor: disable if val == 0 */
2227 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2231 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2233 mutex_unlock(&data->update_lock);
2237 /* Returns 0 if OK, -EINVAL otherwise */
2238 static int check_trip_points(struct nct6775_data *data, int nr)
2242 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2243 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
2246 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2247 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
2250 /* validate critical temperature and pwm if enabled (pwm > 0) */
2251 if (data->auto_pwm[nr][data->auto_pwm_num]) {
2252 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
2253 data->auto_temp[nr][data->auto_pwm_num] ||
2254 data->auto_pwm[nr][data->auto_pwm_num - 1] >
2255 data->auto_pwm[nr][data->auto_pwm_num])
2261 static void pwm_update_registers(struct nct6775_data *data, int nr)
2265 switch (data->pwm_enable[nr]) {
2270 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2271 reg = (reg & ~data->tolerance_mask) |
2272 (data->target_speed_tolerance[nr] & data->tolerance_mask);
2273 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2274 nct6775_write_value(data, data->REG_TARGET[nr],
2275 data->target_speed[nr] & 0xff);
2276 if (data->REG_TOLERANCE_H) {
2277 reg = (data->target_speed[nr] >> 8) & 0x0f;
2278 reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
2279 nct6775_write_value(data,
2280 data->REG_TOLERANCE_H[nr],
2284 case thermal_cruise:
2285 nct6775_write_value(data, data->REG_TARGET[nr],
2286 data->target_temp[nr]);
2289 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2290 reg = (reg & ~data->tolerance_mask) |
2291 data->temp_tolerance[0][nr];
2292 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2298 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
2300 struct nct6775_data *data = nct6775_update_device(dev);
2301 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2303 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
2307 store_pwm_enable(struct device *dev, struct device_attribute *attr,
2308 const char *buf, size_t count)
2310 struct nct6775_data *data = dev_get_drvdata(dev);
2311 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2312 int nr = sattr->index;
2317 err = kstrtoul(buf, 10, &val);
2324 if (val == sf3 && data->kind != nct6775)
2327 if (val == sf4 && check_trip_points(data, nr)) {
2328 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
2329 dev_err(dev, "Adjust trip points and try again\n");
2333 mutex_lock(&data->update_lock);
2334 data->pwm_enable[nr] = val;
2337 * turn off pwm control: select manual mode, set pwm to maximum
2339 data->pwm[0][nr] = 255;
2340 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
2342 pwm_update_registers(data, nr);
2343 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2345 reg |= pwm_enable_to_reg(val) << 4;
2346 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2347 mutex_unlock(&data->update_lock);
2352 show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)
2356 for (i = 0; i < NUM_TEMP; i++) {
2357 if (!(data->have_temp & (1 << i)))
2359 if (src == data->temp_src[i]) {
2365 return sprintf(buf, "%d\n", sel);
2369 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
2371 struct nct6775_data *data = nct6775_update_device(dev);
2372 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2373 int index = sattr->index;
2375 return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]);
2379 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
2380 const char *buf, size_t count)
2382 struct nct6775_data *data = nct6775_update_device(dev);
2383 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2384 int nr = sattr->index;
2388 err = kstrtoul(buf, 10, &val);
2391 if (val == 0 || val > NUM_TEMP)
2393 if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1])
2396 mutex_lock(&data->update_lock);
2397 src = data->temp_src[val - 1];
2398 data->pwm_temp_sel[nr] = src;
2399 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2402 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2403 mutex_unlock(&data->update_lock);
2409 show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2412 struct nct6775_data *data = nct6775_update_device(dev);
2413 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2414 int index = sattr->index;
2416 return show_pwm_temp_sel_common(data, buf,
2417 data->pwm_weight_temp_sel[index]);
2421 store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2422 const char *buf, size_t count)
2424 struct nct6775_data *data = nct6775_update_device(dev);
2425 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2426 int nr = sattr->index;
2430 err = kstrtoul(buf, 10, &val);
2435 if (val && (!(data->have_temp & (1 << (val - 1))) ||
2436 !data->temp_src[val - 1]))
2439 mutex_lock(&data->update_lock);
2441 src = data->temp_src[val - 1];
2442 data->pwm_weight_temp_sel[nr] = src;
2443 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2445 reg |= (src | 0x80);
2446 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2448 data->pwm_weight_temp_sel[nr] = 0;
2449 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2451 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2453 mutex_unlock(&data->update_lock);
2459 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
2461 struct nct6775_data *data = nct6775_update_device(dev);
2462 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2464 return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000);
2468 store_target_temp(struct device *dev, struct device_attribute *attr,
2469 const char *buf, size_t count)
2471 struct nct6775_data *data = dev_get_drvdata(dev);
2472 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2473 int nr = sattr->index;
2477 err = kstrtoul(buf, 10, &val);
2481 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0,
2482 data->target_temp_mask);
2484 mutex_lock(&data->update_lock);
2485 data->target_temp[nr] = val;
2486 pwm_update_registers(data, nr);
2487 mutex_unlock(&data->update_lock);
2492 show_target_speed(struct device *dev, struct device_attribute *attr, char *buf)
2494 struct nct6775_data *data = nct6775_update_device(dev);
2495 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2496 int nr = sattr->index;
2498 return sprintf(buf, "%d\n",
2499 fan_from_reg16(data->target_speed[nr],
2500 data->fan_div[nr]));
2504 store_target_speed(struct device *dev, struct device_attribute *attr,
2505 const char *buf, size_t count)
2507 struct nct6775_data *data = dev_get_drvdata(dev);
2508 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2509 int nr = sattr->index;
2514 err = kstrtoul(buf, 10, &val);
2518 val = clamp_val(val, 0, 1350000U);
2519 speed = fan_to_reg(val, data->fan_div[nr]);
2521 mutex_lock(&data->update_lock);
2522 data->target_speed[nr] = speed;
2523 pwm_update_registers(data, nr);
2524 mutex_unlock(&data->update_lock);
2529 show_temp_tolerance(struct device *dev, struct device_attribute *attr,
2532 struct nct6775_data *data = nct6775_update_device(dev);
2533 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2535 int index = sattr->index;
2537 return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000);
2541 store_temp_tolerance(struct device *dev, struct device_attribute *attr,
2542 const char *buf, size_t count)
2544 struct nct6775_data *data = dev_get_drvdata(dev);
2545 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2547 int index = sattr->index;
2551 err = kstrtoul(buf, 10, &val);
2555 /* Limit tolerance as needed */
2556 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask);
2558 mutex_lock(&data->update_lock);
2559 data->temp_tolerance[index][nr] = val;
2561 pwm_update_registers(data, nr);
2563 nct6775_write_value(data,
2564 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
2566 mutex_unlock(&data->update_lock);
2571 * Fan speed tolerance is a tricky beast, since the associated register is
2572 * a tick counter, but the value is reported and configured as rpm.
2573 * Compute resulting low and high rpm values and report the difference.
2576 show_speed_tolerance(struct device *dev, struct device_attribute *attr,
2579 struct nct6775_data *data = nct6775_update_device(dev);
2580 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2581 int nr = sattr->index;
2582 int low = data->target_speed[nr] - data->target_speed_tolerance[nr];
2583 int high = data->target_speed[nr] + data->target_speed_tolerance[nr];
2593 tolerance = (fan_from_reg16(low, data->fan_div[nr])
2594 - fan_from_reg16(high, data->fan_div[nr])) / 2;
2596 return sprintf(buf, "%d\n", tolerance);
2600 store_speed_tolerance(struct device *dev, struct device_attribute *attr,
2601 const char *buf, size_t count)
2603 struct nct6775_data *data = dev_get_drvdata(dev);
2604 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2605 int nr = sattr->index;
2610 err = kstrtoul(buf, 10, &val);
2614 high = fan_from_reg16(data->target_speed[nr],
2615 data->fan_div[nr]) + val;
2616 low = fan_from_reg16(data->target_speed[nr],
2617 data->fan_div[nr]) - val;
2623 val = (fan_to_reg(low, data->fan_div[nr]) -
2624 fan_to_reg(high, data->fan_div[nr])) / 2;
2626 /* Limit tolerance as needed */
2627 val = clamp_val(val, 0, data->speed_tolerance_limit);
2629 mutex_lock(&data->update_lock);
2630 data->target_speed_tolerance[nr] = val;
2631 pwm_update_registers(data, nr);
2632 mutex_unlock(&data->update_lock);
2636 SENSOR_TEMPLATE_2(pwm, "pwm%d", S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
2637 SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", S_IWUSR | S_IRUGO, show_pwm_mode,
2639 SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", S_IWUSR | S_IRUGO, show_pwm_enable,
2640 store_pwm_enable, 0);
2641 SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", S_IWUSR | S_IRUGO,
2642 show_pwm_temp_sel, store_pwm_temp_sel, 0);
2643 SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", S_IWUSR | S_IRUGO,
2644 show_target_temp, store_target_temp, 0);
2645 SENSOR_TEMPLATE(fan_target, "fan%d_target", S_IWUSR | S_IRUGO,
2646 show_target_speed, store_target_speed, 0);
2647 SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", S_IWUSR | S_IRUGO,
2648 show_speed_tolerance, store_speed_tolerance, 0);
2650 /* Smart Fan registers */
2653 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
2655 struct nct6775_data *data = nct6775_update_device(dev);
2656 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2658 int index = sattr->index;
2660 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
2664 store_weight_temp(struct device *dev, struct device_attribute *attr,
2665 const char *buf, size_t count)
2667 struct nct6775_data *data = dev_get_drvdata(dev);
2668 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2670 int index = sattr->index;
2674 err = kstrtoul(buf, 10, &val);
2678 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
2680 mutex_lock(&data->update_lock);
2681 data->weight_temp[index][nr] = val;
2682 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
2683 mutex_unlock(&data->update_lock);
2687 SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", S_IWUSR | S_IRUGO,
2688 show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0);
2689 SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step",
2690 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 0);
2691 SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol",
2692 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 1);
2693 SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base",
2694 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 2);
2695 SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step",
2696 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 5);
2697 SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base",
2698 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 6);
2701 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2703 struct nct6775_data *data = nct6775_update_device(dev);
2704 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2706 int index = sattr->index;
2708 return sprintf(buf, "%d\n",
2709 step_time_from_reg(data->fan_time[index][nr],
2710 data->pwm_mode[nr]));
2714 store_fan_time(struct device *dev, struct device_attribute *attr,
2715 const char *buf, size_t count)
2717 struct nct6775_data *data = dev_get_drvdata(dev);
2718 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2720 int index = sattr->index;
2724 err = kstrtoul(buf, 10, &val);
2728 val = step_time_to_reg(val, data->pwm_mode[nr]);
2729 mutex_lock(&data->update_lock);
2730 data->fan_time[index][nr] = val;
2731 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2732 mutex_unlock(&data->update_lock);
2737 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2739 struct nct6775_data *data = nct6775_update_device(dev);
2740 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2742 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2746 store_auto_pwm(struct device *dev, struct device_attribute *attr,
2747 const char *buf, size_t count)
2749 struct nct6775_data *data = dev_get_drvdata(dev);
2750 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2752 int point = sattr->index;
2757 err = kstrtoul(buf, 10, &val);
2763 if (point == data->auto_pwm_num) {
2764 if (data->kind != nct6775 && !val)
2766 if (data->kind != nct6779 && val)
2770 mutex_lock(&data->update_lock);
2771 data->auto_pwm[nr][point] = val;
2772 if (point < data->auto_pwm_num) {
2773 nct6775_write_value(data,
2774 NCT6775_AUTO_PWM(data, nr, point),
2775 data->auto_pwm[nr][point]);
2777 switch (data->kind) {
2779 /* disable if needed (pwm == 0) */
2780 reg = nct6775_read_value(data,
2781 NCT6775_REG_CRITICAL_ENAB[nr]);
2786 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2790 break; /* always enabled, nothing to do */
2794 nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
2796 reg = nct6775_read_value(data,
2797 data->REG_CRITICAL_PWM_ENABLE[nr]);
2799 reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
2801 reg |= data->CRITICAL_PWM_ENABLE_MASK;
2802 nct6775_write_value(data,
2803 data->REG_CRITICAL_PWM_ENABLE[nr],
2808 mutex_unlock(&data->update_lock);
2813 show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2815 struct nct6775_data *data = nct6775_update_device(dev);
2816 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2818 int point = sattr->index;
2821 * We don't know for sure if the temperature is signed or unsigned.
2822 * Assume it is unsigned.
2824 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2828 store_auto_temp(struct device *dev, struct device_attribute *attr,
2829 const char *buf, size_t count)
2831 struct nct6775_data *data = dev_get_drvdata(dev);
2832 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2834 int point = sattr->index;
2838 err = kstrtoul(buf, 10, &val);
2844 mutex_lock(&data->update_lock);
2845 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2846 if (point < data->auto_pwm_num) {
2847 nct6775_write_value(data,
2848 NCT6775_AUTO_TEMP(data, nr, point),
2849 data->auto_temp[nr][point]);
2851 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2852 data->auto_temp[nr][point]);
2854 mutex_unlock(&data->update_lock);
2858 static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
2859 struct attribute *attr, int index)
2861 struct device *dev = container_of(kobj, struct device, kobj);
2862 struct nct6775_data *data = dev_get_drvdata(dev);
2863 int pwm = index / 36; /* pwm index */
2864 int nr = index % 36; /* attribute index */
2866 if (!(data->has_pwm & (1 << pwm)))
2869 if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
2870 if (!data->REG_WEIGHT_TEMP_SEL[pwm])
2872 if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
2874 if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
2876 if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */
2879 if (nr >= 22 && nr <= 35) { /* auto point */
2880 int api = (nr - 22) / 2; /* auto point index */
2882 if (api > data->auto_pwm_num)
2888 SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", S_IWUSR | S_IRUGO,
2889 show_fan_time, store_fan_time, 0, 0);
2890 SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", S_IWUSR | S_IRUGO,
2891 show_fan_time, store_fan_time, 0, 1);
2892 SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", S_IWUSR | S_IRUGO,
2893 show_fan_time, store_fan_time, 0, 2);
2894 SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", S_IWUSR | S_IRUGO, show_pwm,
2896 SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", S_IWUSR | S_IRUGO, show_pwm,
2898 SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", S_IWUSR | S_IRUGO,
2899 show_temp_tolerance, store_temp_tolerance, 0, 0);
2900 SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance",
2901 S_IWUSR | S_IRUGO, show_temp_tolerance, store_temp_tolerance,
2904 SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2907 SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", S_IWUSR | S_IRUGO, show_pwm,
2910 SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm",
2911 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 0);
2912 SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp",
2913 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 0);
2915 SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm",
2916 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 1);
2917 SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp",
2918 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 1);
2920 SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm",
2921 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 2);
2922 SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp",
2923 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 2);
2925 SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm",
2926 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 3);
2927 SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp",
2928 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 3);
2930 SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm",
2931 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 4);
2932 SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp",
2933 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 4);
2935 SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm",
2936 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 5);
2937 SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp",
2938 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 5);
2940 SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm",
2941 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 6);
2942 SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp",
2943 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 6);
2946 * nct6775_pwm_is_visible uses the index into the following array
2947 * to determine if attributes should be created or not.
2948 * Any change in order or content must be matched.
2950 static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
2951 &sensor_dev_template_pwm,
2952 &sensor_dev_template_pwm_mode,
2953 &sensor_dev_template_pwm_enable,
2954 &sensor_dev_template_pwm_temp_sel,
2955 &sensor_dev_template_pwm_temp_tolerance,
2956 &sensor_dev_template_pwm_crit_temp_tolerance,
2957 &sensor_dev_template_pwm_target_temp,
2958 &sensor_dev_template_fan_target,
2959 &sensor_dev_template_fan_tolerance,
2960 &sensor_dev_template_pwm_stop_time,
2961 &sensor_dev_template_pwm_step_up_time,
2962 &sensor_dev_template_pwm_step_down_time,
2963 &sensor_dev_template_pwm_start,
2964 &sensor_dev_template_pwm_floor,
2965 &sensor_dev_template_pwm_weight_temp_sel, /* 14 */
2966 &sensor_dev_template_pwm_weight_temp_step,
2967 &sensor_dev_template_pwm_weight_temp_step_tol,
2968 &sensor_dev_template_pwm_weight_temp_step_base,
2969 &sensor_dev_template_pwm_weight_duty_step, /* 18 */
2970 &sensor_dev_template_pwm_max, /* 19 */
2971 &sensor_dev_template_pwm_step, /* 20 */
2972 &sensor_dev_template_pwm_weight_duty_base, /* 21 */
2973 &sensor_dev_template_pwm_auto_point1_pwm, /* 22 */
2974 &sensor_dev_template_pwm_auto_point1_temp,
2975 &sensor_dev_template_pwm_auto_point2_pwm,
2976 &sensor_dev_template_pwm_auto_point2_temp,
2977 &sensor_dev_template_pwm_auto_point3_pwm,
2978 &sensor_dev_template_pwm_auto_point3_temp,
2979 &sensor_dev_template_pwm_auto_point4_pwm,
2980 &sensor_dev_template_pwm_auto_point4_temp,
2981 &sensor_dev_template_pwm_auto_point5_pwm,
2982 &sensor_dev_template_pwm_auto_point5_temp,
2983 &sensor_dev_template_pwm_auto_point6_pwm,
2984 &sensor_dev_template_pwm_auto_point6_temp,
2985 &sensor_dev_template_pwm_auto_point7_pwm,
2986 &sensor_dev_template_pwm_auto_point7_temp, /* 35 */
2991 static struct sensor_template_group nct6775_pwm_template_group = {
2992 .templates = nct6775_attributes_pwm_template,
2993 .is_visible = nct6775_pwm_is_visible,
2998 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
3000 struct nct6775_data *data = dev_get_drvdata(dev);
3001 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
3004 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
3006 /* Case open detection */
3009 clear_caseopen(struct device *dev, struct device_attribute *attr,
3010 const char *buf, size_t count)
3012 struct nct6775_data *data = dev_get_drvdata(dev);
3013 int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
3018 if (kstrtoul(buf, 10, &val) || val != 0)
3021 mutex_lock(&data->update_lock);
3024 * Use CR registers to clear caseopen status.
3025 * The CR registers are the same for all chips, and not all chips
3026 * support clearing the caseopen status through "regular" registers.
3028 ret = superio_enter(data->sioreg);
3034 superio_select(data->sioreg, NCT6775_LD_ACPI);
3035 reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
3036 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3037 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3038 reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3039 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3040 superio_exit(data->sioreg);
3042 data->valid = false; /* Force cache refresh */
3044 mutex_unlock(&data->update_lock);
3048 static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
3049 clear_caseopen, INTRUSION_ALARM_BASE);
3050 static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
3051 clear_caseopen, INTRUSION_ALARM_BASE + 1);
3052 static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep,
3053 store_beep, INTRUSION_ALARM_BASE);
3054 static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep,
3055 store_beep, INTRUSION_ALARM_BASE + 1);
3056 static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep,
3057 store_beep, BEEP_ENABLE_BASE);
3059 static umode_t nct6775_other_is_visible(struct kobject *kobj,
3060 struct attribute *attr, int index)
3062 struct device *dev = container_of(kobj, struct device, kobj);
3063 struct nct6775_data *data = dev_get_drvdata(dev);
3065 if (index == 0 && !data->have_vid)
3068 if (index == 1 || index == 2) {
3069 if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
3073 if (index == 3 || index == 4) {
3074 if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
3082 * nct6775_other_is_visible uses the index into the following array
3083 * to determine if attributes should be created or not.
3084 * Any change in order or content must be matched.
3086 static struct attribute *nct6775_attributes_other[] = {
3087 &dev_attr_cpu0_vid.attr, /* 0 */
3088 &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
3089 &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
3090 &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
3091 &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
3092 &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
3097 static const struct attribute_group nct6775_group_other = {
3098 .attrs = nct6775_attributes_other,
3099 .is_visible = nct6775_other_is_visible,
3102 static inline void nct6775_init_device(struct nct6775_data *data)
3107 /* Start monitoring if needed */
3108 if (data->REG_CONFIG) {
3109 tmp = nct6775_read_value(data, data->REG_CONFIG);
3111 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
3114 /* Enable temperature sensors if needed */
3115 for (i = 0; i < NUM_TEMP; i++) {
3116 if (!(data->have_temp & (1 << i)))
3118 if (!data->reg_temp_config[i])
3120 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
3122 nct6775_write_value(data, data->reg_temp_config[i],
3126 /* Enable VBAT monitoring if needed */
3127 tmp = nct6775_read_value(data, data->REG_VBAT);
3129 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
3131 diode = nct6775_read_value(data, data->REG_DIODE);
3133 for (i = 0; i < data->temp_fixed_num; i++) {
3134 if (!(data->have_temp_fixed & (1 << i)))
3136 if ((tmp & (data->DIODE_MASK << i))) /* diode */
3138 = 3 - ((diode >> i) & data->DIODE_MASK);
3139 else /* thermistor */
3140 data->temp_type[i] = 4;
3145 nct6775_check_fan_inputs(struct nct6775_data *data)
3147 bool fan3pin, fan4pin, fan4min, fan5pin, fan6pin;
3148 bool pwm3pin, pwm4pin, pwm5pin, pwm6pin;
3149 int sioreg = data->sioreg;
3152 /* fan4 and fan5 share some pins with the GPIO and serial flash */
3153 if (data->kind == nct6775) {
3154 regval = superio_inb(sioreg, 0x2c);
3156 fan3pin = regval & (1 << 6);
3157 pwm3pin = regval & (1 << 7);
3159 /* On NCT6775, fan4 shares pins with the fdc interface */
3160 fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
3167 } else if (data->kind == nct6776) {
3168 bool gpok = superio_inb(sioreg, 0x27) & 0x80;
3170 superio_select(sioreg, NCT6775_LD_HWM);
3171 regval = superio_inb(sioreg, SIO_REG_ENABLE);
3176 fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
3181 fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
3186 fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
3194 } else if (data->kind == nct6106) {
3195 regval = superio_inb(sioreg, 0x24);
3196 fan3pin = !(regval & 0x80);
3197 pwm3pin = regval & 0x08;
3206 } else { /* NCT6779D or NCT6791D */
3207 regval = superio_inb(sioreg, 0x1c);
3209 fan3pin = !(regval & (1 << 5));
3210 fan4pin = !(regval & (1 << 6));
3211 fan5pin = !(regval & (1 << 7));
3213 pwm3pin = !(regval & (1 << 0));
3214 pwm4pin = !(regval & (1 << 1));
3215 pwm5pin = !(regval & (1 << 2));
3219 if (data->kind == nct6791) {
3220 regval = superio_inb(sioreg, 0x2d);
3221 fan6pin = (regval & (1 << 1));
3222 pwm6pin = (regval & (1 << 0));
3223 } else { /* NCT6779D */
3229 /* fan 1 and 2 (0x03) are always present */
3230 data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
3231 (fan5pin << 4) | (fan6pin << 5);
3232 data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
3234 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
3235 (pwm5pin << 4) | (pwm6pin << 5);
3238 static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
3239 int *available, int *mask)
3244 for (i = 0; i < data->pwm_num && *available; i++) {
3249 src = nct6775_read_value(data, regp[i]);
3251 if (!src || (*mask & (1 << src)))
3253 if (src >= data->temp_label_num ||
3254 !strlen(data->temp_label[src]))
3257 index = __ffs(*available);
3258 nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
3259 *available &= ~(1 << index);
3264 static int nct6775_probe(struct platform_device *pdev)
3266 struct device *dev = &pdev->dev;
3267 struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
3268 struct nct6775_data *data;
3269 struct resource *res;
3271 int src, mask, available;
3272 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
3273 const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
3274 const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
3275 int num_reg_temp, num_reg_temp_mon;
3277 struct attribute_group *group;
3278 struct device *hwmon_dev;
3280 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
3281 if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
3285 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3290 data->kind = sio_data->kind;
3291 data->sioreg = sio_data->sioreg;
3292 data->addr = res->start;
3293 mutex_init(&data->update_lock);
3294 data->name = nct6775_device_names[data->kind];
3295 data->bank = 0xff; /* Force initial bank selection */
3296 platform_set_drvdata(pdev, data);
3298 switch (data->kind) {
3302 data->auto_pwm_num = 4;
3303 data->temp_fixed_num = 3;
3304 data->num_temp_alarms = 6;
3305 data->num_temp_beeps = 6;
3307 data->fan_from_reg = fan_from_reg13;
3308 data->fan_from_reg_min = fan_from_reg13;
3310 data->temp_label = nct6776_temp_label;
3311 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3313 data->REG_VBAT = NCT6106_REG_VBAT;
3314 data->REG_DIODE = NCT6106_REG_DIODE;
3315 data->DIODE_MASK = NCT6106_DIODE_MASK;
3316 data->REG_VIN = NCT6106_REG_IN;
3317 data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
3318 data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
3319 data->REG_TARGET = NCT6106_REG_TARGET;
3320 data->REG_FAN = NCT6106_REG_FAN;
3321 data->REG_FAN_MODE = NCT6106_REG_FAN_MODE;
3322 data->REG_FAN_MIN = NCT6106_REG_FAN_MIN;
3323 data->REG_FAN_PULSES = NCT6106_REG_FAN_PULSES;
3324 data->FAN_PULSE_SHIFT = NCT6106_FAN_PULSE_SHIFT;
3325 data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME;
3326 data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME;
3327 data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME;
3328 data->REG_PWM[0] = NCT6106_REG_PWM;
3329 data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT;
3330 data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT;
3331 data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
3332 data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
3333 data->REG_PWM_READ = NCT6106_REG_PWM_READ;
3334 data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
3335 data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
3336 data->REG_AUTO_TEMP = NCT6106_REG_AUTO_TEMP;
3337 data->REG_AUTO_PWM = NCT6106_REG_AUTO_PWM;
3338 data->REG_CRITICAL_TEMP = NCT6106_REG_CRITICAL_TEMP;
3339 data->REG_CRITICAL_TEMP_TOLERANCE
3340 = NCT6106_REG_CRITICAL_TEMP_TOLERANCE;
3341 data->REG_CRITICAL_PWM_ENABLE = NCT6106_REG_CRITICAL_PWM_ENABLE;
3342 data->CRITICAL_PWM_ENABLE_MASK
3343 = NCT6106_CRITICAL_PWM_ENABLE_MASK;
3344 data->REG_CRITICAL_PWM = NCT6106_REG_CRITICAL_PWM;
3345 data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
3346 data->REG_TEMP_SOURCE = NCT6106_REG_TEMP_SOURCE;
3347 data->REG_TEMP_SEL = NCT6106_REG_TEMP_SEL;
3348 data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
3349 data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
3350 data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
3351 data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
3352 data->REG_ALARM = NCT6106_REG_ALARM;
3353 data->ALARM_BITS = NCT6106_ALARM_BITS;
3354 data->REG_BEEP = NCT6106_REG_BEEP;
3355 data->BEEP_BITS = NCT6106_BEEP_BITS;
3357 reg_temp = NCT6106_REG_TEMP;
3358 reg_temp_mon = NCT6106_REG_TEMP_MON;
3359 num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
3360 num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
3361 reg_temp_over = NCT6106_REG_TEMP_OVER;
3362 reg_temp_hyst = NCT6106_REG_TEMP_HYST;
3363 reg_temp_config = NCT6106_REG_TEMP_CONFIG;
3364 reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
3365 reg_temp_crit = NCT6106_REG_TEMP_CRIT;
3366 reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
3367 reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
3373 data->auto_pwm_num = 6;
3374 data->has_fan_div = true;
3375 data->temp_fixed_num = 3;
3376 data->num_temp_alarms = 3;
3377 data->num_temp_beeps = 3;
3379 data->ALARM_BITS = NCT6775_ALARM_BITS;
3380 data->BEEP_BITS = NCT6775_BEEP_BITS;
3382 data->fan_from_reg = fan_from_reg16;
3383 data->fan_from_reg_min = fan_from_reg8;
3384 data->target_temp_mask = 0x7f;
3385 data->tolerance_mask = 0x0f;
3386 data->speed_tolerance_limit = 15;
3388 data->temp_label = nct6775_temp_label;
3389 data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
3391 data->REG_CONFIG = NCT6775_REG_CONFIG;
3392 data->REG_VBAT = NCT6775_REG_VBAT;
3393 data->REG_DIODE = NCT6775_REG_DIODE;
3394 data->DIODE_MASK = NCT6775_DIODE_MASK;
3395 data->REG_VIN = NCT6775_REG_IN;
3396 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3397 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3398 data->REG_TARGET = NCT6775_REG_TARGET;
3399 data->REG_FAN = NCT6775_REG_FAN;
3400 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3401 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
3402 data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES;
3403 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3404 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3405 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3406 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3407 data->REG_PWM[0] = NCT6775_REG_PWM;
3408 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3409 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3410 data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
3411 data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
3412 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3413 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3414 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
3415 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
3416 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3417 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3418 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3419 data->REG_CRITICAL_TEMP_TOLERANCE
3420 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3421 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3422 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3423 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3424 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3425 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3426 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3427 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3428 data->REG_ALARM = NCT6775_REG_ALARM;
3429 data->REG_BEEP = NCT6775_REG_BEEP;
3431 reg_temp = NCT6775_REG_TEMP;
3432 reg_temp_mon = NCT6775_REG_TEMP_MON;
3433 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3434 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
3435 reg_temp_over = NCT6775_REG_TEMP_OVER;
3436 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3437 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
3438 reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE;
3439 reg_temp_crit = NCT6775_REG_TEMP_CRIT;
3445 data->auto_pwm_num = 4;
3446 data->has_fan_div = false;
3447 data->temp_fixed_num = 3;
3448 data->num_temp_alarms = 3;
3449 data->num_temp_beeps = 6;
3451 data->ALARM_BITS = NCT6776_ALARM_BITS;
3452 data->BEEP_BITS = NCT6776_BEEP_BITS;
3454 data->fan_from_reg = fan_from_reg13;
3455 data->fan_from_reg_min = fan_from_reg13;
3456 data->target_temp_mask = 0xff;
3457 data->tolerance_mask = 0x07;
3458 data->speed_tolerance_limit = 63;
3460 data->temp_label = nct6776_temp_label;
3461 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3463 data->REG_CONFIG = NCT6775_REG_CONFIG;
3464 data->REG_VBAT = NCT6775_REG_VBAT;
3465 data->REG_DIODE = NCT6775_REG_DIODE;
3466 data->DIODE_MASK = NCT6775_DIODE_MASK;
3467 data->REG_VIN = NCT6775_REG_IN;
3468 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3469 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3470 data->REG_TARGET = NCT6775_REG_TARGET;
3471 data->REG_FAN = NCT6775_REG_FAN;
3472 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3473 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3474 data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
3475 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3476 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3477 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3478 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3479 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3480 data->REG_PWM[0] = NCT6775_REG_PWM;
3481 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3482 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3483 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3484 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3485 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3486 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3487 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3488 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3489 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3490 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3491 data->REG_CRITICAL_TEMP_TOLERANCE
3492 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3493 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3494 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3495 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3496 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3497 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3498 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3499 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3500 data->REG_ALARM = NCT6775_REG_ALARM;
3501 data->REG_BEEP = NCT6776_REG_BEEP;
3503 reg_temp = NCT6775_REG_TEMP;
3504 reg_temp_mon = NCT6775_REG_TEMP_MON;
3505 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3506 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
3507 reg_temp_over = NCT6775_REG_TEMP_OVER;
3508 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3509 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3510 reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE;
3511 reg_temp_crit = NCT6776_REG_TEMP_CRIT;
3517 data->auto_pwm_num = 4;
3518 data->has_fan_div = false;
3519 data->temp_fixed_num = 6;
3520 data->num_temp_alarms = 2;
3521 data->num_temp_beeps = 2;
3523 data->ALARM_BITS = NCT6779_ALARM_BITS;
3524 data->BEEP_BITS = NCT6779_BEEP_BITS;
3526 data->fan_from_reg = fan_from_reg13;
3527 data->fan_from_reg_min = fan_from_reg13;
3528 data->target_temp_mask = 0xff;
3529 data->tolerance_mask = 0x07;
3530 data->speed_tolerance_limit = 63;
3532 data->temp_label = nct6779_temp_label;
3533 data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
3535 data->REG_CONFIG = NCT6775_REG_CONFIG;
3536 data->REG_VBAT = NCT6775_REG_VBAT;
3537 data->REG_DIODE = NCT6775_REG_DIODE;
3538 data->DIODE_MASK = NCT6775_DIODE_MASK;
3539 data->REG_VIN = NCT6779_REG_IN;
3540 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3541 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3542 data->REG_TARGET = NCT6775_REG_TARGET;
3543 data->REG_FAN = NCT6779_REG_FAN;
3544 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3545 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3546 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
3547 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3548 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3549 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3550 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3551 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3552 data->REG_PWM[0] = NCT6775_REG_PWM;
3553 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3554 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3555 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3556 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3557 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3558 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3559 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3560 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3561 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3562 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3563 data->REG_CRITICAL_TEMP_TOLERANCE
3564 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3565 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
3566 data->CRITICAL_PWM_ENABLE_MASK
3567 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
3568 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
3569 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3570 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3571 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3572 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3573 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3574 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3575 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3576 data->REG_ALARM = NCT6779_REG_ALARM;
3577 data->REG_BEEP = NCT6776_REG_BEEP;
3579 reg_temp = NCT6779_REG_TEMP;
3580 reg_temp_mon = NCT6779_REG_TEMP_MON;
3581 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3582 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
3583 reg_temp_over = NCT6779_REG_TEMP_OVER;
3584 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3585 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3586 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3587 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3593 data->auto_pwm_num = 4;
3594 data->has_fan_div = false;
3595 data->temp_fixed_num = 6;
3596 data->num_temp_alarms = 2;
3597 data->num_temp_beeps = 2;
3599 data->ALARM_BITS = NCT6791_ALARM_BITS;
3600 data->BEEP_BITS = NCT6779_BEEP_BITS;
3602 data->fan_from_reg = fan_from_reg13;
3603 data->fan_from_reg_min = fan_from_reg13;
3604 data->target_temp_mask = 0xff;
3605 data->tolerance_mask = 0x07;
3606 data->speed_tolerance_limit = 63;
3608 data->temp_label = nct6779_temp_label;
3609 data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
3611 data->REG_CONFIG = NCT6775_REG_CONFIG;
3612 data->REG_VBAT = NCT6775_REG_VBAT;
3613 data->REG_DIODE = NCT6775_REG_DIODE;
3614 data->DIODE_MASK = NCT6775_DIODE_MASK;
3615 data->REG_VIN = NCT6779_REG_IN;
3616 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3617 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3618 data->REG_TARGET = NCT6775_REG_TARGET;
3619 data->REG_FAN = NCT6779_REG_FAN;
3620 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3621 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3622 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
3623 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3624 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3625 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3626 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3627 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3628 data->REG_PWM[0] = NCT6775_REG_PWM;
3629 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3630 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3631 data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP;
3632 data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE;
3633 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3634 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3635 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3636 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3637 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3638 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3639 data->REG_CRITICAL_TEMP_TOLERANCE
3640 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3641 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
3642 data->CRITICAL_PWM_ENABLE_MASK
3643 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
3644 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
3645 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3646 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3647 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3648 data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL;
3649 data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP;
3650 data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL;
3651 data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE;
3652 data->REG_ALARM = NCT6791_REG_ALARM;
3653 data->REG_BEEP = NCT6776_REG_BEEP;
3655 reg_temp = NCT6779_REG_TEMP;
3656 reg_temp_mon = NCT6779_REG_TEMP_MON;
3657 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3658 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
3659 reg_temp_over = NCT6779_REG_TEMP_OVER;
3660 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3661 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3662 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3663 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3669 data->have_in = (1 << data->in_num) - 1;
3670 data->have_temp = 0;
3673 * On some boards, not all available temperature sources are monitored,
3674 * even though some of the monitoring registers are unused.
3675 * Get list of unused monitoring registers, then detect if any fan
3676 * controls are configured to use unmonitored temperature sources.
3677 * If so, assign the unmonitored temperature sources to available
3678 * monitoring registers.
3682 for (i = 0; i < num_reg_temp; i++) {
3683 if (reg_temp[i] == 0)
3686 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3687 if (!src || (mask & (1 << src)))
3688 available |= 1 << i;
3694 * Now find unmonitored temperature registers and enable monitoring
3695 * if additional monitoring registers are available.
3697 add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask);
3698 add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask);
3701 s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
3702 for (i = 0; i < num_reg_temp; i++) {
3703 if (reg_temp[i] == 0)
3706 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3707 if (!src || (mask & (1 << src)))
3710 if (src >= data->temp_label_num ||
3711 !strlen(data->temp_label[src])) {
3713 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3714 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
3720 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3721 if (src <= data->temp_fixed_num) {
3722 data->have_temp |= 1 << (src - 1);
3723 data->have_temp_fixed |= 1 << (src - 1);
3724 data->reg_temp[0][src - 1] = reg_temp[i];
3725 data->reg_temp[1][src - 1] = reg_temp_over[i];
3726 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
3727 if (reg_temp_crit_h && reg_temp_crit_h[i])
3728 data->reg_temp[3][src - 1] = reg_temp_crit_h[i];
3729 else if (reg_temp_crit[src - 1])
3730 data->reg_temp[3][src - 1]
3731 = reg_temp_crit[src - 1];
3732 if (reg_temp_crit_l && reg_temp_crit_l[i])
3733 data->reg_temp[4][src - 1] = reg_temp_crit_l[i];
3734 data->reg_temp_config[src - 1] = reg_temp_config[i];
3735 data->temp_src[src - 1] = src;
3742 /* Use dynamic index for other sources */
3743 data->have_temp |= 1 << s;
3744 data->reg_temp[0][s] = reg_temp[i];
3745 data->reg_temp[1][s] = reg_temp_over[i];
3746 data->reg_temp[2][s] = reg_temp_hyst[i];
3747 data->reg_temp_config[s] = reg_temp_config[i];
3748 if (reg_temp_crit_h && reg_temp_crit_h[i])
3749 data->reg_temp[3][s] = reg_temp_crit_h[i];
3750 else if (reg_temp_crit[src - 1])
3751 data->reg_temp[3][s] = reg_temp_crit[src - 1];
3752 if (reg_temp_crit_l && reg_temp_crit_l[i])
3753 data->reg_temp[4][s] = reg_temp_crit_l[i];
3755 data->temp_src[s] = src;
3760 * Repeat with temperatures used for fan control.
3761 * This set of registers does not support limits.
3763 for (i = 0; i < num_reg_temp_mon; i++) {
3764 if (reg_temp_mon[i] == 0)
3767 src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
3768 if (!src || (mask & (1 << src)))
3771 if (src >= data->temp_label_num ||
3772 !strlen(data->temp_label[src])) {
3774 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3775 src, i, data->REG_TEMP_SEL[i],
3782 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3783 if (src <= data->temp_fixed_num) {
3784 if (data->have_temp & (1 << (src - 1)))
3786 data->have_temp |= 1 << (src - 1);
3787 data->have_temp_fixed |= 1 << (src - 1);
3788 data->reg_temp[0][src - 1] = reg_temp_mon[i];
3789 data->temp_src[src - 1] = src;
3796 /* Use dynamic index for other sources */
3797 data->have_temp |= 1 << s;
3798 data->reg_temp[0][s] = reg_temp_mon[i];
3799 data->temp_src[s] = src;
3803 #ifdef USE_ALTERNATE
3805 * Go through the list of alternate temp registers and enable
3807 * The temperature is already monitored if the respective bit in <mask>
3810 for (i = 0; i < data->temp_label_num - 1; i++) {
3811 if (!reg_temp_alternate[i])
3813 if (mask & (1 << (i + 1)))
3815 if (i < data->temp_fixed_num) {
3816 if (data->have_temp & (1 << i))
3818 data->have_temp |= 1 << i;
3819 data->have_temp_fixed |= 1 << i;
3820 data->reg_temp[0][i] = reg_temp_alternate[i];
3821 if (i < num_reg_temp) {
3822 data->reg_temp[1][i] = reg_temp_over[i];
3823 data->reg_temp[2][i] = reg_temp_hyst[i];
3825 data->temp_src[i] = i + 1;
3829 if (s >= NUM_TEMP) /* Abort if no more space */
3832 data->have_temp |= 1 << s;
3833 data->reg_temp[0][s] = reg_temp_alternate[i];
3834 data->temp_src[s] = i + 1;
3837 #endif /* USE_ALTERNATE */
3839 /* Initialize the chip */
3840 nct6775_init_device(data);
3842 err = superio_enter(sio_data->sioreg);
3846 cr2a = superio_inb(sio_data->sioreg, 0x2a);
3847 switch (data->kind) {
3849 data->have_vid = (cr2a & 0x40);
3852 data->have_vid = (cr2a & 0x60) == 0x40;
3862 * We can get the VID input values directly at logical device D 0xe3.
3864 if (data->have_vid) {
3865 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3866 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3867 data->vrm = vid_which_vrm();
3873 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3874 tmp = superio_inb(sio_data->sioreg,
3875 NCT6775_REG_CR_FAN_DEBOUNCE);
3876 switch (data->kind) {
3891 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3893 dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
3897 nct6775_check_fan_inputs(data);
3899 superio_exit(sio_data->sioreg);
3901 /* Read fan clock dividers immediately */
3902 nct6775_init_fan_common(dev, data);
3904 /* Register sysfs hooks */
3905 group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group,
3908 return PTR_ERR(group);
3910 data->groups[data->num_attr_groups++] = group;
3912 group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
3913 fls(data->have_in));
3915 return PTR_ERR(group);
3917 data->groups[data->num_attr_groups++] = group;
3919 group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
3920 fls(data->has_fan));
3922 return PTR_ERR(group);
3924 data->groups[data->num_attr_groups++] = group;
3926 group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
3927 fls(data->have_temp));
3929 return PTR_ERR(group);
3931 data->groups[data->num_attr_groups++] = group;
3932 data->groups[data->num_attr_groups++] = &nct6775_group_other;
3934 hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
3935 data, data->groups);
3936 return PTR_ERR_OR_ZERO(hwmon_dev);
3939 static void nct6791_enable_io_mapping(int sioaddr)
3943 val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
3945 pr_info("Enabling hardware monitor logical device mappings.\n");
3946 superio_outb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
3952 static int nct6775_suspend(struct device *dev)
3954 struct nct6775_data *data = nct6775_update_device(dev);
3956 mutex_lock(&data->update_lock);
3957 data->vbat = nct6775_read_value(data, data->REG_VBAT);
3958 if (data->kind == nct6775) {
3959 data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1);
3960 data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2);
3962 mutex_unlock(&data->update_lock);
3967 static int nct6775_resume(struct device *dev)
3969 struct nct6775_data *data = dev_get_drvdata(dev);
3972 mutex_lock(&data->update_lock);
3973 data->bank = 0xff; /* Force initial bank selection */
3975 if (data->kind == nct6791) {
3976 err = superio_enter(data->sioreg);
3980 nct6791_enable_io_mapping(data->sioreg);
3981 superio_exit(data->sioreg);
3984 /* Restore limits */
3985 for (i = 0; i < data->in_num; i++) {
3986 if (!(data->have_in & (1 << i)))
3989 nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
3991 nct6775_write_value(data, data->REG_IN_MINMAX[1][i],
3995 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
3996 if (!(data->has_fan_min & (1 << i)))
3999 nct6775_write_value(data, data->REG_FAN_MIN[i],
4003 for (i = 0; i < NUM_TEMP; i++) {
4004 if (!(data->have_temp & (1 << i)))
4007 for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
4008 if (data->reg_temp[j][i])
4009 nct6775_write_temp(data, data->reg_temp[j][i],
4013 /* Restore other settings */
4014 nct6775_write_value(data, data->REG_VBAT, data->vbat);
4015 if (data->kind == nct6775) {
4016 nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
4017 nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
4021 /* Force re-reading all values */
4022 data->valid = false;
4023 mutex_unlock(&data->update_lock);
4028 static const struct dev_pm_ops nct6775_dev_pm_ops = {
4029 .suspend = nct6775_suspend,
4030 .resume = nct6775_resume,
4031 .freeze = nct6775_suspend,
4032 .restore = nct6775_resume,
4035 #define NCT6775_DEV_PM_OPS (&nct6775_dev_pm_ops)
4037 #define NCT6775_DEV_PM_OPS NULL
4038 #endif /* CONFIG_PM */
4040 static struct platform_driver nct6775_driver = {
4042 .owner = THIS_MODULE,
4044 .pm = NCT6775_DEV_PM_OPS,
4046 .probe = nct6775_probe,
4049 static const char * const nct6775_sio_names[] __initconst = {
4057 /* nct6775_find() looks for a '627 in the Super-I/O config space */
4058 static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
4064 err = superio_enter(sioaddr);
4071 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
4072 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
4073 switch (val & SIO_ID_MASK) {
4074 case SIO_NCT6106_ID:
4075 sio_data->kind = nct6106;
4077 case SIO_NCT6775_ID:
4078 sio_data->kind = nct6775;
4080 case SIO_NCT6776_ID:
4081 sio_data->kind = nct6776;
4083 case SIO_NCT6779_ID:
4084 sio_data->kind = nct6779;
4086 case SIO_NCT6791_ID:
4087 sio_data->kind = nct6791;
4091 pr_debug("unsupported chip ID: 0x%04x\n", val);
4092 superio_exit(sioaddr);
4096 /* We have a known chip, find the HWM I/O address */
4097 superio_select(sioaddr, NCT6775_LD_HWM);
4098 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
4099 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
4100 addr = val & IOREGION_ALIGNMENT;
4102 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
4103 superio_exit(sioaddr);
4107 /* Activate logical device if needed */
4108 val = superio_inb(sioaddr, SIO_REG_ENABLE);
4109 if (!(val & 0x01)) {
4110 pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
4111 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
4114 if (sio_data->kind == nct6791)
4115 nct6791_enable_io_mapping(sioaddr);
4117 superio_exit(sioaddr);
4118 pr_info("Found %s or compatible chip at %#x:%#x\n",
4119 nct6775_sio_names[sio_data->kind], sioaddr, addr);
4120 sio_data->sioreg = sioaddr;
4126 * when Super-I/O functions move to a separate file, the Super-I/O
4127 * bus will manage the lifetime of the device and this module will only keep
4128 * track of the nct6775 driver. But since we use platform_device_alloc(), we
4129 * must keep track of the device
4131 static struct platform_device *pdev[2];
4133 static int __init sensors_nct6775_init(void)
4138 struct resource res;
4139 struct nct6775_sio_data sio_data;
4140 int sioaddr[2] = { 0x2e, 0x4e };
4142 err = platform_driver_register(&nct6775_driver);
4147 * initialize sio_data->kind and sio_data->sioreg.
4149 * when Super-I/O functions move to a separate file, the Super-I/O
4150 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
4151 * nct6775 hardware monitor, and call probe()
4153 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4154 address = nct6775_find(sioaddr[i], &sio_data);
4160 pdev[i] = platform_device_alloc(DRVNAME, address);
4163 goto exit_device_put;
4166 err = platform_device_add_data(pdev[i], &sio_data,
4167 sizeof(struct nct6775_sio_data));
4169 goto exit_device_put;
4171 memset(&res, 0, sizeof(res));
4173 res.start = address + IOREGION_OFFSET;
4174 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
4175 res.flags = IORESOURCE_IO;
4177 err = acpi_check_resource_conflict(&res);
4179 platform_device_put(pdev[i]);
4184 err = platform_device_add_resources(pdev[i], &res, 1);
4186 goto exit_device_put;
4188 /* platform_device_add calls probe() */
4189 err = platform_device_add(pdev[i]);
4191 goto exit_device_put;
4195 goto exit_unregister;
4201 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4203 platform_device_put(pdev[i]);
4206 platform_driver_unregister(&nct6775_driver);
4210 static void __exit sensors_nct6775_exit(void)
4214 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4216 platform_device_unregister(pdev[i]);
4218 platform_driver_unregister(&nct6775_driver);
4221 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
4222 MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver");
4223 MODULE_LICENSE("GPL");
4225 module_init(sensors_nct6775_init);
4226 module_exit(sensors_nct6775_exit);