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 <jdelvare@suse.de>
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
41 * nct6792d 15 6 6 2+6 0xc911 0xc1 0x5ca3
43 * #temp lists the number of monitored temperature sources (first value) plus
44 * the number of directly connectable temperature sensors (second value).
47 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
49 #include <linux/module.h>
50 #include <linux/init.h>
51 #include <linux/slab.h>
52 #include <linux/jiffies.h>
53 #include <linux/platform_device.h>
54 #include <linux/hwmon.h>
55 #include <linux/hwmon-sysfs.h>
56 #include <linux/hwmon-vid.h>
57 #include <linux/err.h>
58 #include <linux/mutex.h>
59 #include <linux/acpi.h>
66 enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792 };
68 /* used to set data->name = nct6775_device_names[data->sio_kind] */
69 static const char * const nct6775_device_names[] = {
78 static unsigned short force_id;
79 module_param(force_id, ushort, 0);
80 MODULE_PARM_DESC(force_id, "Override the detected device ID");
82 static unsigned short fan_debounce;
83 module_param(fan_debounce, ushort, 0);
84 MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
86 #define DRVNAME "nct6775"
89 * Super-I/O constants and functions
92 #define NCT6775_LD_ACPI 0x0a
93 #define NCT6775_LD_HWM 0x0b
94 #define NCT6775_LD_VID 0x0d
96 #define SIO_REG_LDSEL 0x07 /* Logical device select */
97 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
98 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
99 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
101 #define SIO_NCT6106_ID 0xc450
102 #define SIO_NCT6775_ID 0xb470
103 #define SIO_NCT6776_ID 0xc330
104 #define SIO_NCT6779_ID 0xc560
105 #define SIO_NCT6791_ID 0xc800
106 #define SIO_NCT6792_ID 0xc910
107 #define SIO_ID_MASK 0xFFF0
109 enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
112 superio_outb(int ioreg, int reg, int val)
115 outb(val, ioreg + 1);
119 superio_inb(int ioreg, int reg)
122 return inb(ioreg + 1);
126 superio_select(int ioreg, int ld)
128 outb(SIO_REG_LDSEL, ioreg);
133 superio_enter(int ioreg)
136 * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
138 if (!request_muxed_region(ioreg, 2, DRVNAME))
148 superio_exit(int ioreg)
152 outb(0x02, ioreg + 1);
153 release_region(ioreg, 2);
160 #define IOREGION_ALIGNMENT (~7)
161 #define IOREGION_OFFSET 5
162 #define IOREGION_LENGTH 2
163 #define ADDR_REG_OFFSET 0
164 #define DATA_REG_OFFSET 1
166 #define NCT6775_REG_BANK 0x4E
167 #define NCT6775_REG_CONFIG 0x40
170 * Not currently used:
171 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
172 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
173 * REG_MAN_ID is at port 0x4f
174 * REG_CHIP_ID is at port 0x58
177 #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
178 #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
180 #define NUM_REG_ALARM 7 /* Max number of alarm registers */
181 #define NUM_REG_BEEP 5 /* Max number of beep registers */
185 /* Common and NCT6775 specific data */
187 /* Voltage min/max registers for nr=7..14 are in bank 5 */
189 static const u16 NCT6775_REG_IN_MAX[] = {
190 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a,
191 0x55c, 0x55e, 0x560, 0x562 };
192 static const u16 NCT6775_REG_IN_MIN[] = {
193 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b,
194 0x55d, 0x55f, 0x561, 0x563 };
195 static const u16 NCT6775_REG_IN[] = {
196 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
199 #define NCT6775_REG_VBAT 0x5D
200 #define NCT6775_REG_DIODE 0x5E
201 #define NCT6775_DIODE_MASK 0x02
203 #define NCT6775_REG_FANDIV1 0x506
204 #define NCT6775_REG_FANDIV2 0x507
206 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
208 static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B };
210 /* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */
212 static const s8 NCT6775_ALARM_BITS[] = {
213 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
214 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
216 6, 7, 11, -1, -1, /* fan1..fan5 */
217 -1, -1, -1, /* unused */
218 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
219 12, -1 }; /* intrusion0, intrusion1 */
221 #define FAN_ALARM_BASE 16
222 #define TEMP_ALARM_BASE 24
223 #define INTRUSION_ALARM_BASE 30
225 static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e };
228 * 0..14 voltages, 15 global beep enable, 16..23 fans, 24..29 temperatures,
231 static const s8 NCT6775_BEEP_BITS[] = {
232 0, 1, 2, 3, 8, 9, 10, 16, /* in0.. in7 */
233 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
234 21, /* global beep enable */
235 6, 7, 11, 28, -1, /* fan1..fan5 */
236 -1, -1, -1, /* unused */
237 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
238 12, -1 }; /* intrusion0, intrusion1 */
240 #define BEEP_ENABLE_BASE 15
242 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
243 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
245 /* DC or PWM output fan configuration */
246 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
247 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
249 /* Advanced Fan control, some values are common for all fans */
251 static const u16 NCT6775_REG_TARGET[] = {
252 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01 };
253 static const u16 NCT6775_REG_FAN_MODE[] = {
254 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02 };
255 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
256 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03 };
257 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
258 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04 };
259 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
260 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05 };
261 static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
262 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06 };
263 static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
264 static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
266 static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
267 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07 };
268 static const u16 NCT6775_REG_PWM[] = {
269 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09 };
270 static const u16 NCT6775_REG_PWM_READ[] = {
271 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09 };
273 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
274 static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
275 static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 };
276 static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 };
278 static const u16 NCT6775_REG_TEMP[] = {
279 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
281 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
283 static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
284 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
285 static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
286 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
287 static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
288 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
290 static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
291 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
293 static const u16 NCT6775_REG_TEMP_SEL[] = {
294 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00 };
296 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {
297 0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 };
298 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = {
299 0x13a, 0x23a, 0x33a, 0x83a, 0x93a, 0xa3a };
300 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = {
301 0x13b, 0x23b, 0x33b, 0x83b, 0x93b, 0xa3b };
302 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = {
303 0x13c, 0x23c, 0x33c, 0x83c, 0x93c, 0xa3c };
304 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {
305 0x13d, 0x23d, 0x33d, 0x83d, 0x93d, 0xa3d };
307 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
309 static const u16 NCT6775_REG_AUTO_TEMP[] = {
310 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21 };
311 static const u16 NCT6775_REG_AUTO_PWM[] = {
312 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27 };
314 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
315 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
317 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
319 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
320 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35 };
321 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
322 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38 };
324 static const char *const nct6775_temp_label[] = {
338 "PCH_CHIP_CPU_MAX_TEMP",
348 static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
349 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
351 static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
352 = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06,
355 /* NCT6776 specific data */
357 static const s8 NCT6776_ALARM_BITS[] = {
358 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
359 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
361 6, 7, 11, 10, 23, /* fan1..fan5 */
362 -1, -1, -1, /* unused */
363 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
364 12, 9 }; /* intrusion0, intrusion1 */
366 static const u16 NCT6776_REG_BEEP[NUM_REG_BEEP] = { 0xb2, 0xb3, 0xb4, 0xb5 };
368 static const s8 NCT6776_BEEP_BITS[] = {
369 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
370 8, -1, -1, -1, -1, -1, -1, /* in8..in14 */
371 24, /* global beep enable */
372 25, 26, 27, 28, 29, /* fan1..fan5 */
373 -1, -1, -1, /* unused */
374 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
375 30, 31 }; /* intrusion0, intrusion1 */
377 static const u16 NCT6776_REG_TOLERANCE_H[] = {
378 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c };
380 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 };
381 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 };
383 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 };
384 static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
386 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {
387 0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e };
389 static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
390 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
392 static const char *const nct6776_temp_label[] = {
407 "PCH_CHIP_CPU_MAX_TEMP",
418 static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
419 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
421 static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
422 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
424 /* NCT6779 specific data */
426 static const u16 NCT6779_REG_IN[] = {
427 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
428 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e };
430 static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = {
431 0x459, 0x45A, 0x45B, 0x568 };
433 static const s8 NCT6779_ALARM_BITS[] = {
434 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
435 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
437 6, 7, 11, 10, 23, /* fan1..fan5 */
438 -1, -1, -1, /* unused */
439 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
440 12, 9 }; /* intrusion0, intrusion1 */
442 static const s8 NCT6779_BEEP_BITS[] = {
443 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
444 8, 9, 10, 11, 12, 13, 14, /* in8..in14 */
445 24, /* global beep enable */
446 25, 26, 27, 28, 29, /* fan1..fan5 */
447 -1, -1, -1, /* unused */
448 16, 17, -1, -1, -1, -1, /* temp1..temp6 */
449 30, 31 }; /* intrusion0, intrusion1 */
451 static const u16 NCT6779_REG_FAN[] = {
452 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba };
453 static const u16 NCT6779_REG_FAN_PULSES[] = {
454 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
456 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
457 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36 };
458 #define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
459 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
460 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
462 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
463 static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
464 static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
466 static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
468 static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
471 static const u16 NCT6779_REG_TEMP_OFFSET[] = {
472 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
474 static const char *const nct6779_temp_label[] = {
493 "PCH_CHIP_CPU_MAX_TEMP",
504 static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
505 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
506 0, 0, 0, 0, 0, 0, 0, 0,
507 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
510 static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
511 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
513 /* NCT6791 specific data */
515 #define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
517 static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 };
518 static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a };
519 static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b };
520 static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c };
521 static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d };
522 static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 0, 0x23e };
524 static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
525 0x459, 0x45A, 0x45B, 0x568, 0x45D };
527 static const s8 NCT6791_ALARM_BITS[] = {
528 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
529 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
531 6, 7, 11, 10, 23, 33, /* fan1..fan6 */
533 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
534 12, 9 }; /* intrusion0, intrusion1 */
536 /* NCT6792 specific data */
538 static const u16 NCT6792_REG_TEMP_MON[] = {
539 0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
540 static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
541 0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
543 /* NCT6102D/NCT6106D specific data */
545 #define NCT6106_REG_VBAT 0x318
546 #define NCT6106_REG_DIODE 0x319
547 #define NCT6106_DIODE_MASK 0x01
549 static const u16 NCT6106_REG_IN_MAX[] = {
550 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 };
551 static const u16 NCT6106_REG_IN_MIN[] = {
552 0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 };
553 static const u16 NCT6106_REG_IN[] = {
554 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
556 static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
557 static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
558 static const u16 NCT6106_REG_TEMP_HYST[] = {
559 0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
560 static const u16 NCT6106_REG_TEMP_OVER[] = {
561 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 };
562 static const u16 NCT6106_REG_TEMP_CRIT_L[] = {
563 0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 };
564 static const u16 NCT6106_REG_TEMP_CRIT_H[] = {
565 0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 };
566 static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
567 static const u16 NCT6106_REG_TEMP_CONFIG[] = {
568 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc };
570 static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 };
571 static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 };
572 static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0, 0 };
573 static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4, 0, 0 };
575 static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
576 static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
577 static const u16 NCT6106_REG_PWM[] = { 0x119, 0x129, 0x139 };
578 static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
579 static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 };
580 static const u16 NCT6106_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130 };
581 static const u16 NCT6106_REG_TEMP_SOURCE[] = {
582 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 };
584 static const u16 NCT6106_REG_CRITICAL_TEMP[] = { 0x11a, 0x12a, 0x13a };
585 static const u16 NCT6106_REG_CRITICAL_TEMP_TOLERANCE[] = {
586 0x11b, 0x12b, 0x13b };
588 static const u16 NCT6106_REG_CRITICAL_PWM_ENABLE[] = { 0x11c, 0x12c, 0x13c };
589 #define NCT6106_CRITICAL_PWM_ENABLE_MASK 0x10
590 static const u16 NCT6106_REG_CRITICAL_PWM[] = { 0x11d, 0x12d, 0x13d };
592 static const u16 NCT6106_REG_FAN_STEP_UP_TIME[] = { 0x114, 0x124, 0x134 };
593 static const u16 NCT6106_REG_FAN_STEP_DOWN_TIME[] = { 0x115, 0x125, 0x135 };
594 static const u16 NCT6106_REG_FAN_STOP_OUTPUT[] = { 0x116, 0x126, 0x136 };
595 static const u16 NCT6106_REG_FAN_START_OUTPUT[] = { 0x117, 0x127, 0x137 };
596 static const u16 NCT6106_REG_FAN_STOP_TIME[] = { 0x118, 0x128, 0x138 };
597 static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 };
599 static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 };
601 static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
602 static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
603 static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
604 static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x17c };
605 static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
606 static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
608 static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 };
609 static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 };
611 static const u16 NCT6106_REG_ALARM[NUM_REG_ALARM] = {
612 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d };
614 static const s8 NCT6106_ALARM_BITS[] = {
615 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
616 9, -1, -1, -1, -1, -1, -1, /* in8..in14 */
618 32, 33, 34, -1, -1, /* fan1..fan5 */
619 -1, -1, -1, /* unused */
620 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
621 48, -1 /* intrusion0, intrusion1 */
624 static const u16 NCT6106_REG_BEEP[NUM_REG_BEEP] = {
625 0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 };
627 static const s8 NCT6106_BEEP_BITS[] = {
628 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
629 9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
630 32, /* global beep enable */
631 24, 25, 26, 27, 28, /* fan1..fan5 */
632 -1, -1, -1, /* unused */
633 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
634 34, -1 /* intrusion0, intrusion1 */
637 static const u16 NCT6106_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
638 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x51, 0x52, 0x54 };
640 static const u16 NCT6106_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
641 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x204, 0x205 };
643 static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
645 if (mode == 0 && pwm == 255)
650 static int pwm_enable_to_reg(enum pwm_enable mode)
661 /* 1 is DC mode, output in ms */
662 static unsigned int step_time_from_reg(u8 reg, u8 mode)
664 return mode ? 400 * reg : 100 * reg;
667 static u8 step_time_to_reg(unsigned int msec, u8 mode)
669 return clamp_val((mode ? (msec + 200) / 400 :
670 (msec + 50) / 100), 1, 255);
673 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
675 if (reg == 0 || reg == 255)
677 return 1350000U / (reg << divreg);
680 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
682 if ((reg & 0xff1f) == 0xff1f)
685 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
690 return 1350000U / reg;
693 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
695 if (reg == 0 || reg == 0xffff)
699 * Even though the registers are 16 bit wide, the fan divisor
702 return 1350000U / (reg << divreg);
705 static u16 fan_to_reg(u32 fan, unsigned int divreg)
710 return (1350000U / fan) >> divreg;
713 static inline unsigned int
720 * Some of the voltage inputs have internal scaling, the tables below
721 * contain 8 (the ADC LSB in mV) * scaling factor * 100
723 static const u16 scale_in[15] = {
724 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
728 static inline long in_from_reg(u8 reg, u8 nr)
730 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
733 static inline u8 in_to_reg(u32 val, u8 nr)
735 return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255);
739 * Data structures and manipulation thereof
742 struct nct6775_data {
743 int addr; /* IO base of hw monitor block */
744 int sioreg; /* SIO register address */
748 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
749 struct device *hwmon_dev;
752 const struct attribute_group *groups[6];
754 u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
755 * 3=temp_crit, 4=temp_lcrit
757 u8 temp_src[NUM_TEMP];
758 u16 reg_temp_config[NUM_TEMP];
759 const char * const *temp_label;
767 const s8 *ALARM_BITS;
771 const u16 *REG_IN_MINMAX[2];
773 const u16 *REG_TARGET;
775 const u16 *REG_FAN_MODE;
776 const u16 *REG_FAN_MIN;
777 const u16 *REG_FAN_PULSES;
778 const u16 *FAN_PULSE_SHIFT;
779 const u16 *REG_FAN_TIME[3];
781 const u16 *REG_TOLERANCE_H;
783 const u8 *REG_PWM_MODE;
784 const u8 *PWM_MODE_MASK;
786 const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
787 * [3]=pwm_max, [4]=pwm_step,
788 * [5]=weight_duty_step, [6]=weight_duty_base
790 const u16 *REG_PWM_READ;
792 const u16 *REG_CRITICAL_PWM_ENABLE;
793 u8 CRITICAL_PWM_ENABLE_MASK;
794 const u16 *REG_CRITICAL_PWM;
796 const u16 *REG_AUTO_TEMP;
797 const u16 *REG_AUTO_PWM;
799 const u16 *REG_CRITICAL_TEMP;
800 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
802 const u16 *REG_TEMP_SOURCE; /* temp register sources */
803 const u16 *REG_TEMP_SEL;
804 const u16 *REG_WEIGHT_TEMP_SEL;
805 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
807 const u16 *REG_TEMP_OFFSET;
809 const u16 *REG_ALARM;
812 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
813 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
815 struct mutex update_lock;
816 bool valid; /* true if following fields are valid */
817 unsigned long last_updated; /* In jiffies */
819 /* Register values */
820 u8 bank; /* current register bank */
821 u8 in_num; /* number of in inputs we have */
822 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
823 unsigned int rpm[NUM_FAN];
824 u16 fan_min[NUM_FAN];
825 u8 fan_pulses[NUM_FAN];
828 u8 has_fan; /* some fan inputs can be disabled */
829 u8 has_fan_min; /* some fans don't have min register */
832 u8 num_temp_alarms; /* 2, 3, or 6 */
833 u8 num_temp_beeps; /* 2, 3, or 6 */
834 u8 temp_fixed_num; /* 3 or 6 */
835 u8 temp_type[NUM_TEMP_FIXED];
836 s8 temp_offset[NUM_TEMP_FIXED];
837 s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
838 * 3=temp_crit, 4=temp_lcrit */
842 u8 pwm_num; /* number of pwm */
843 u8 pwm_mode[NUM_FAN]; /* 1->DC variable voltage,
844 * 0->PWM variable duty cycle
846 enum pwm_enable pwm_enable[NUM_FAN];
849 * 2->thermal cruise mode (also called SmartFan I)
850 * 3->fan speed cruise mode
852 * 5->enhanced variable thermal cruise (SmartFan IV)
854 u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
855 * [3]=pwm_max, [4]=pwm_step,
856 * [5]=weight_duty_step, [6]=weight_duty_base
859 u8 target_temp[NUM_FAN];
861 u32 target_speed[NUM_FAN];
862 u32 target_speed_tolerance[NUM_FAN];
863 u8 speed_tolerance_limit;
865 u8 temp_tolerance[2][NUM_FAN];
868 u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
870 /* Automatic fan speed control registers */
872 u8 auto_pwm[NUM_FAN][7];
873 u8 auto_temp[NUM_FAN][7];
874 u8 pwm_temp_sel[NUM_FAN];
875 u8 pwm_weight_temp_sel[NUM_FAN];
876 u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
889 /* Remember extra register values over suspend/resume */
896 struct nct6775_sio_data {
901 struct sensor_device_template {
902 struct device_attribute dev_attr;
910 bool s2; /* true if both index and nr are used */
913 struct sensor_device_attr_u {
915 struct sensor_device_attribute a1;
916 struct sensor_device_attribute_2 a2;
921 #define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \
922 .attr = {.name = _template, .mode = _mode }, \
927 #define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \
928 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
932 #define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
934 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
935 .u.s.index = _index, \
939 #define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \
940 static struct sensor_device_template sensor_dev_template_##_name \
941 = SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \
944 #define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \
946 static struct sensor_device_template sensor_dev_template_##_name \
947 = SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
950 struct sensor_template_group {
951 struct sensor_device_template **templates;
952 umode_t (*is_visible)(struct kobject *, struct attribute *, int);
956 static struct attribute_group *
957 nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
960 struct attribute_group *group;
961 struct sensor_device_attr_u *su;
962 struct sensor_device_attribute *a;
963 struct sensor_device_attribute_2 *a2;
964 struct attribute **attrs;
965 struct sensor_device_template **t;
969 return ERR_PTR(-EINVAL);
972 for (count = 0; *t; t++, count++)
976 return ERR_PTR(-EINVAL);
978 group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
980 return ERR_PTR(-ENOMEM);
982 attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1),
985 return ERR_PTR(-ENOMEM);
987 su = devm_kzalloc(dev, sizeof(*su) * repeat * count,
990 return ERR_PTR(-ENOMEM);
992 group->attrs = attrs;
993 group->is_visible = tg->is_visible;
995 for (i = 0; i < repeat; i++) {
998 snprintf(su->name, sizeof(su->name),
999 (*t)->dev_attr.attr.name, tg->base + i);
1002 a2->dev_attr.attr.name = su->name;
1003 a2->nr = (*t)->u.s.nr + i;
1004 a2->index = (*t)->u.s.index;
1005 a2->dev_attr.attr.mode =
1006 (*t)->dev_attr.attr.mode;
1007 a2->dev_attr.show = (*t)->dev_attr.show;
1008 a2->dev_attr.store = (*t)->dev_attr.store;
1009 *attrs = &a2->dev_attr.attr;
1012 a->dev_attr.attr.name = su->name;
1013 a->index = (*t)->u.index + i;
1014 a->dev_attr.attr.mode =
1015 (*t)->dev_attr.attr.mode;
1016 a->dev_attr.show = (*t)->dev_attr.show;
1017 a->dev_attr.store = (*t)->dev_attr.store;
1018 *attrs = &a->dev_attr.attr;
1029 static bool is_word_sized(struct nct6775_data *data, u16 reg)
1031 switch (data->kind) {
1033 return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
1034 reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
1035 reg == 0x111 || reg == 0x121 || reg == 0x131;
1037 return (((reg & 0xff00) == 0x100 ||
1038 (reg & 0xff00) == 0x200) &&
1039 ((reg & 0x00ff) == 0x50 ||
1040 (reg & 0x00ff) == 0x53 ||
1041 (reg & 0x00ff) == 0x55)) ||
1042 (reg & 0xfff0) == 0x630 ||
1043 reg == 0x640 || reg == 0x642 ||
1045 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1046 reg == 0x73 || reg == 0x75 || reg == 0x77;
1048 return (((reg & 0xff00) == 0x100 ||
1049 (reg & 0xff00) == 0x200) &&
1050 ((reg & 0x00ff) == 0x50 ||
1051 (reg & 0x00ff) == 0x53 ||
1052 (reg & 0x00ff) == 0x55)) ||
1053 (reg & 0xfff0) == 0x630 ||
1055 reg == 0x640 || reg == 0x642 ||
1056 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1057 reg == 0x73 || reg == 0x75 || reg == 0x77;
1061 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
1062 ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
1064 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
1065 reg == 0x640 || reg == 0x642 ||
1066 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
1067 reg == 0x7b || reg == 0x7d;
1073 * On older chips, only registers 0x50-0x5f are banked.
1074 * On more recent chips, all registers are banked.
1075 * Assume that is the case and set the bank number for each access.
1076 * Cache the bank number so it only needs to be set if it changes.
1078 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
1082 if (data->bank != bank) {
1083 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
1084 outb_p(bank, data->addr + DATA_REG_OFFSET);
1089 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
1091 int res, word_sized = is_word_sized(data, reg);
1093 nct6775_set_bank(data, reg);
1094 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1095 res = inb_p(data->addr + DATA_REG_OFFSET);
1097 outb_p((reg & 0xff) + 1,
1098 data->addr + ADDR_REG_OFFSET);
1099 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
1104 static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
1106 int word_sized = is_word_sized(data, reg);
1108 nct6775_set_bank(data, reg);
1109 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1111 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
1112 outb_p((reg & 0xff) + 1,
1113 data->addr + ADDR_REG_OFFSET);
1115 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
1119 /* We left-align 8-bit temperature values to make the code simpler */
1120 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
1124 res = nct6775_read_value(data, reg);
1125 if (!is_word_sized(data, reg))
1131 static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
1133 if (!is_word_sized(data, reg))
1135 return nct6775_write_value(data, reg, value);
1138 /* This function assumes that the caller holds data->update_lock */
1139 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
1145 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
1146 | (data->fan_div[0] & 0x7);
1147 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1150 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
1151 | ((data->fan_div[1] << 4) & 0x70);
1152 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1155 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
1156 | (data->fan_div[2] & 0x7);
1157 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1160 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
1161 | ((data->fan_div[3] << 4) & 0x70);
1162 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1167 static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr)
1169 if (data->kind == nct6775)
1170 nct6775_write_fan_div(data, nr);
1173 static void nct6775_update_fan_div(struct nct6775_data *data)
1177 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
1178 data->fan_div[0] = i & 0x7;
1179 data->fan_div[1] = (i & 0x70) >> 4;
1180 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
1181 data->fan_div[2] = i & 0x7;
1182 if (data->has_fan & (1 << 3))
1183 data->fan_div[3] = (i & 0x70) >> 4;
1186 static void nct6775_update_fan_div_common(struct nct6775_data *data)
1188 if (data->kind == nct6775)
1189 nct6775_update_fan_div(data);
1192 static void nct6775_init_fan_div(struct nct6775_data *data)
1196 nct6775_update_fan_div_common(data);
1198 * For all fans, start with highest divider value if the divider
1199 * register is not initialized. This ensures that we get a
1200 * reading from the fan count register, even if it is not optimal.
1201 * We'll compute a better divider later on.
1203 for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) {
1204 if (!(data->has_fan & (1 << i)))
1206 if (data->fan_div[i] == 0) {
1207 data->fan_div[i] = 7;
1208 nct6775_write_fan_div_common(data, i);
1213 static void nct6775_init_fan_common(struct device *dev,
1214 struct nct6775_data *data)
1219 if (data->has_fan_div)
1220 nct6775_init_fan_div(data);
1223 * If fan_min is not set (0), set it to 0xff to disable it. This
1224 * prevents the unnecessary warning when fanX_min is reported as 0.
1226 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
1227 if (data->has_fan_min & (1 << i)) {
1228 reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
1230 nct6775_write_value(data, data->REG_FAN_MIN[i],
1231 data->has_fan_div ? 0xff
1237 static void nct6775_select_fan_div(struct device *dev,
1238 struct nct6775_data *data, int nr, u16 reg)
1240 u8 fan_div = data->fan_div[nr];
1243 if (!data->has_fan_div)
1247 * If we failed to measure the fan speed, or the reported value is not
1248 * in the optimal range, and the clock divider can be modified,
1249 * let's try that for next time.
1251 if (reg == 0x00 && fan_div < 0x07)
1253 else if (reg != 0x00 && reg < 0x30 && fan_div > 0)
1256 if (fan_div != data->fan_div[nr]) {
1257 dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n",
1258 nr + 1, div_from_reg(data->fan_div[nr]),
1259 div_from_reg(fan_div));
1261 /* Preserve min limit if possible */
1262 if (data->has_fan_min & (1 << nr)) {
1263 fan_min = data->fan_min[nr];
1264 if (fan_div > data->fan_div[nr]) {
1265 if (fan_min != 255 && fan_min > 1)
1268 if (fan_min != 255) {
1274 if (fan_min != data->fan_min[nr]) {
1275 data->fan_min[nr] = fan_min;
1276 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1280 data->fan_div[nr] = fan_div;
1281 nct6775_write_fan_div_common(data, nr);
1285 static void nct6775_update_pwm(struct device *dev)
1287 struct nct6775_data *data = dev_get_drvdata(dev);
1289 int fanmodecfg, reg;
1292 for (i = 0; i < data->pwm_num; i++) {
1293 if (!(data->has_pwm & (1 << i)))
1296 duty_is_dc = data->REG_PWM_MODE[i] &&
1297 (nct6775_read_value(data, data->REG_PWM_MODE[i])
1298 & data->PWM_MODE_MASK[i]);
1299 data->pwm_mode[i] = duty_is_dc;
1301 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
1302 for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
1303 if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
1305 = nct6775_read_value(data,
1306 data->REG_PWM[j][i]);
1310 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
1311 (fanmodecfg >> 4) & 7);
1313 if (!data->temp_tolerance[0][i] ||
1314 data->pwm_enable[i] != speed_cruise)
1315 data->temp_tolerance[0][i] = fanmodecfg & 0x0f;
1316 if (!data->target_speed_tolerance[i] ||
1317 data->pwm_enable[i] == speed_cruise) {
1318 u8 t = fanmodecfg & 0x0f;
1320 if (data->REG_TOLERANCE_H) {
1321 t |= (nct6775_read_value(data,
1322 data->REG_TOLERANCE_H[i]) & 0x70) >> 1;
1324 data->target_speed_tolerance[i] = t;
1327 data->temp_tolerance[1][i] =
1328 nct6775_read_value(data,
1329 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
1331 reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
1332 data->pwm_temp_sel[i] = reg & 0x1f;
1333 /* If fan can stop, report floor as 0 */
1335 data->pwm[2][i] = 0;
1337 if (!data->REG_WEIGHT_TEMP_SEL[i])
1340 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
1341 data->pwm_weight_temp_sel[i] = reg & 0x1f;
1342 /* If weight is disabled, report weight source as 0 */
1343 if (j == 1 && !(reg & 0x80))
1344 data->pwm_weight_temp_sel[i] = 0;
1346 /* Weight temp data */
1347 for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
1348 data->weight_temp[j][i]
1349 = nct6775_read_value(data,
1350 data->REG_WEIGHT_TEMP[j][i]);
1355 static void nct6775_update_pwm_limits(struct device *dev)
1357 struct nct6775_data *data = dev_get_drvdata(dev);
1362 for (i = 0; i < data->pwm_num; i++) {
1363 if (!(data->has_pwm & (1 << i)))
1366 for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
1367 data->fan_time[j][i] =
1368 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
1371 reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
1372 /* Update only in matching mode or if never updated */
1373 if (!data->target_temp[i] ||
1374 data->pwm_enable[i] == thermal_cruise)
1375 data->target_temp[i] = reg_t & data->target_temp_mask;
1376 if (!data->target_speed[i] ||
1377 data->pwm_enable[i] == speed_cruise) {
1378 if (data->REG_TOLERANCE_H) {
1379 reg_t |= (nct6775_read_value(data,
1380 data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
1382 data->target_speed[i] = reg_t;
1385 for (j = 0; j < data->auto_pwm_num; j++) {
1386 data->auto_pwm[i][j] =
1387 nct6775_read_value(data,
1388 NCT6775_AUTO_PWM(data, i, j));
1389 data->auto_temp[i][j] =
1390 nct6775_read_value(data,
1391 NCT6775_AUTO_TEMP(data, i, j));
1394 /* critical auto_pwm temperature data */
1395 data->auto_temp[i][data->auto_pwm_num] =
1396 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
1398 switch (data->kind) {
1400 reg = nct6775_read_value(data,
1401 NCT6775_REG_CRITICAL_ENAB[i]);
1402 data->auto_pwm[i][data->auto_pwm_num] =
1403 (reg & 0x02) ? 0xff : 0x00;
1406 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
1412 reg = nct6775_read_value(data,
1413 data->REG_CRITICAL_PWM_ENABLE[i]);
1414 if (reg & data->CRITICAL_PWM_ENABLE_MASK)
1415 reg = nct6775_read_value(data,
1416 data->REG_CRITICAL_PWM[i]);
1419 data->auto_pwm[i][data->auto_pwm_num] = reg;
1425 static struct nct6775_data *nct6775_update_device(struct device *dev)
1427 struct nct6775_data *data = dev_get_drvdata(dev);
1430 mutex_lock(&data->update_lock);
1432 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1434 /* Fan clock dividers */
1435 nct6775_update_fan_div_common(data);
1437 /* Measured voltages and limits */
1438 for (i = 0; i < data->in_num; i++) {
1439 if (!(data->have_in & (1 << i)))
1442 data->in[i][0] = nct6775_read_value(data,
1444 data->in[i][1] = nct6775_read_value(data,
1445 data->REG_IN_MINMAX[0][i]);
1446 data->in[i][2] = nct6775_read_value(data,
1447 data->REG_IN_MINMAX[1][i]);
1450 /* Measured fan speeds and limits */
1451 for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
1454 if (!(data->has_fan & (1 << i)))
1457 reg = nct6775_read_value(data, data->REG_FAN[i]);
1458 data->rpm[i] = data->fan_from_reg(reg,
1461 if (data->has_fan_min & (1 << i))
1462 data->fan_min[i] = nct6775_read_value(data,
1463 data->REG_FAN_MIN[i]);
1464 data->fan_pulses[i] =
1465 (nct6775_read_value(data, data->REG_FAN_PULSES[i])
1466 >> data->FAN_PULSE_SHIFT[i]) & 0x03;
1468 nct6775_select_fan_div(dev, data, i, reg);
1471 nct6775_update_pwm(dev);
1472 nct6775_update_pwm_limits(dev);
1474 /* Measured temperatures and limits */
1475 for (i = 0; i < NUM_TEMP; i++) {
1476 if (!(data->have_temp & (1 << i)))
1478 for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
1479 if (data->reg_temp[j][i])
1481 = nct6775_read_temp(data,
1482 data->reg_temp[j][i]);
1484 if (i >= NUM_TEMP_FIXED ||
1485 !(data->have_temp_fixed & (1 << i)))
1487 data->temp_offset[i]
1488 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
1492 for (i = 0; i < NUM_REG_ALARM; i++) {
1495 if (!data->REG_ALARM[i])
1497 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
1498 data->alarms |= ((u64)alarm) << (i << 3);
1502 for (i = 0; i < NUM_REG_BEEP; i++) {
1505 if (!data->REG_BEEP[i])
1507 beep = nct6775_read_value(data, data->REG_BEEP[i]);
1508 data->beeps |= ((u64)beep) << (i << 3);
1511 data->last_updated = jiffies;
1515 mutex_unlock(&data->update_lock);
1520 * Sysfs callback functions
1523 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
1525 struct nct6775_data *data = nct6775_update_device(dev);
1526 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1527 int index = sattr->index;
1530 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
1534 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1537 struct nct6775_data *data = dev_get_drvdata(dev);
1538 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1539 int index = sattr->index;
1544 err = kstrtoul(buf, 10, &val);
1547 mutex_lock(&data->update_lock);
1548 data->in[nr][index] = in_to_reg(val, nr);
1549 nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr],
1550 data->in[nr][index]);
1551 mutex_unlock(&data->update_lock);
1556 show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1558 struct nct6775_data *data = nct6775_update_device(dev);
1559 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1560 int nr = data->ALARM_BITS[sattr->index];
1562 return sprintf(buf, "%u\n",
1563 (unsigned int)((data->alarms >> nr) & 0x01));
1566 static int find_temp_source(struct nct6775_data *data, int index, int count)
1568 int source = data->temp_src[index];
1571 for (nr = 0; nr < count; nr++) {
1574 src = nct6775_read_value(data,
1575 data->REG_TEMP_SOURCE[nr]) & 0x1f;
1583 show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1585 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1586 struct nct6775_data *data = nct6775_update_device(dev);
1587 unsigned int alarm = 0;
1591 * For temperatures, there is no fixed mapping from registers to alarm
1592 * bits. Alarm bits are determined by the temperature source mapping.
1594 nr = find_temp_source(data, sattr->index, data->num_temp_alarms);
1596 int bit = data->ALARM_BITS[nr + TEMP_ALARM_BASE];
1598 alarm = (data->alarms >> bit) & 0x01;
1600 return sprintf(buf, "%u\n", alarm);
1604 show_beep(struct device *dev, struct device_attribute *attr, char *buf)
1606 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1607 struct nct6775_data *data = nct6775_update_device(dev);
1608 int nr = data->BEEP_BITS[sattr->index];
1610 return sprintf(buf, "%u\n",
1611 (unsigned int)((data->beeps >> nr) & 0x01));
1615 store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
1618 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1619 struct nct6775_data *data = dev_get_drvdata(dev);
1620 int nr = data->BEEP_BITS[sattr->index];
1621 int regindex = nr >> 3;
1625 err = kstrtoul(buf, 10, &val);
1631 mutex_lock(&data->update_lock);
1633 data->beeps |= (1ULL << nr);
1635 data->beeps &= ~(1ULL << nr);
1636 nct6775_write_value(data, data->REG_BEEP[regindex],
1637 (data->beeps >> (regindex << 3)) & 0xff);
1638 mutex_unlock(&data->update_lock);
1643 show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf)
1645 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1646 struct nct6775_data *data = nct6775_update_device(dev);
1647 unsigned int beep = 0;
1651 * For temperatures, there is no fixed mapping from registers to beep
1652 * enable bits. Beep enable bits are determined by the temperature
1655 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
1657 int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
1659 beep = (data->beeps >> bit) & 0x01;
1661 return sprintf(buf, "%u\n", beep);
1665 store_temp_beep(struct device *dev, struct device_attribute *attr,
1666 const char *buf, size_t count)
1668 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1669 struct nct6775_data *data = dev_get_drvdata(dev);
1670 int nr, bit, regindex;
1674 err = kstrtoul(buf, 10, &val);
1680 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
1684 bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
1685 regindex = bit >> 3;
1687 mutex_lock(&data->update_lock);
1689 data->beeps |= (1ULL << bit);
1691 data->beeps &= ~(1ULL << bit);
1692 nct6775_write_value(data, data->REG_BEEP[regindex],
1693 (data->beeps >> (regindex << 3)) & 0xff);
1694 mutex_unlock(&data->update_lock);
1699 static umode_t nct6775_in_is_visible(struct kobject *kobj,
1700 struct attribute *attr, int index)
1702 struct device *dev = container_of(kobj, struct device, kobj);
1703 struct nct6775_data *data = dev_get_drvdata(dev);
1704 int in = index / 5; /* voltage index */
1706 if (!(data->have_in & (1 << in)))
1712 SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
1713 SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0);
1714 SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep,
1716 SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg,
1717 store_in_reg, 0, 1);
1718 SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, show_in_reg,
1719 store_in_reg, 0, 2);
1722 * nct6775_in_is_visible uses the index into the following array
1723 * to determine if attributes should be created or not.
1724 * Any change in order or content must be matched.
1726 static struct sensor_device_template *nct6775_attributes_in_template[] = {
1727 &sensor_dev_template_in_input,
1728 &sensor_dev_template_in_alarm,
1729 &sensor_dev_template_in_beep,
1730 &sensor_dev_template_in_min,
1731 &sensor_dev_template_in_max,
1735 static struct sensor_template_group nct6775_in_template_group = {
1736 .templates = nct6775_attributes_in_template,
1737 .is_visible = nct6775_in_is_visible,
1741 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1743 struct nct6775_data *data = nct6775_update_device(dev);
1744 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1745 int nr = sattr->index;
1747 return sprintf(buf, "%d\n", data->rpm[nr]);
1751 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1753 struct nct6775_data *data = nct6775_update_device(dev);
1754 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1755 int nr = sattr->index;
1757 return sprintf(buf, "%d\n",
1758 data->fan_from_reg_min(data->fan_min[nr],
1759 data->fan_div[nr]));
1763 show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1765 struct nct6775_data *data = nct6775_update_device(dev);
1766 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1767 int nr = sattr->index;
1769 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1773 store_fan_min(struct device *dev, struct device_attribute *attr,
1774 const char *buf, size_t count)
1776 struct nct6775_data *data = dev_get_drvdata(dev);
1777 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1778 int nr = sattr->index;
1784 err = kstrtoul(buf, 10, &val);
1788 mutex_lock(&data->update_lock);
1789 if (!data->has_fan_div) {
1790 /* NCT6776F or NCT6779D; we know this is a 13 bit register */
1796 val = 1350000U / val;
1797 val = (val & 0x1f) | ((val << 3) & 0xff00);
1799 data->fan_min[nr] = val;
1800 goto write_min; /* Leave fan divider alone */
1803 /* No min limit, alarm disabled */
1804 data->fan_min[nr] = 255;
1805 new_div = data->fan_div[nr]; /* No change */
1806 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1809 reg = 1350000U / val;
1810 if (reg >= 128 * 255) {
1812 * Speed below this value cannot possibly be represented,
1813 * even with the highest divider (128)
1815 data->fan_min[nr] = 254;
1816 new_div = 7; /* 128 == (1 << 7) */
1818 "fan%u low limit %lu below minimum %u, set to minimum\n",
1819 nr + 1, val, data->fan_from_reg_min(254, 7));
1822 * Speed above this value cannot possibly be represented,
1823 * even with the lowest divider (1)
1825 data->fan_min[nr] = 1;
1826 new_div = 0; /* 1 == (1 << 0) */
1828 "fan%u low limit %lu above maximum %u, set to maximum\n",
1829 nr + 1, val, data->fan_from_reg_min(1, 0));
1832 * Automatically pick the best divider, i.e. the one such
1833 * that the min limit will correspond to a register value
1834 * in the 96..192 range
1837 while (reg > 192 && new_div < 7) {
1841 data->fan_min[nr] = reg;
1846 * Write both the fan clock divider (if it changed) and the new
1847 * fan min (unconditionally)
1849 if (new_div != data->fan_div[nr]) {
1850 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1851 nr + 1, div_from_reg(data->fan_div[nr]),
1852 div_from_reg(new_div));
1853 data->fan_div[nr] = new_div;
1854 nct6775_write_fan_div_common(data, nr);
1855 /* Give the chip time to sample a new speed value */
1856 data->last_updated = jiffies;
1860 nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
1861 mutex_unlock(&data->update_lock);
1867 show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
1869 struct nct6775_data *data = nct6775_update_device(dev);
1870 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1871 int p = data->fan_pulses[sattr->index];
1873 return sprintf(buf, "%d\n", p ? : 4);
1877 store_fan_pulses(struct device *dev, struct device_attribute *attr,
1878 const char *buf, size_t count)
1880 struct nct6775_data *data = dev_get_drvdata(dev);
1881 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1882 int nr = sattr->index;
1887 err = kstrtoul(buf, 10, &val);
1894 mutex_lock(&data->update_lock);
1895 data->fan_pulses[nr] = val & 3;
1896 reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]);
1897 reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
1898 reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
1899 nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
1900 mutex_unlock(&data->update_lock);
1905 static umode_t nct6775_fan_is_visible(struct kobject *kobj,
1906 struct attribute *attr, int index)
1908 struct device *dev = container_of(kobj, struct device, kobj);
1909 struct nct6775_data *data = dev_get_drvdata(dev);
1910 int fan = index / 6; /* fan index */
1911 int nr = index % 6; /* attribute index */
1913 if (!(data->has_fan & (1 << fan)))
1916 if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1)
1918 if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
1920 if (nr == 4 && !(data->has_fan_min & (1 << fan)))
1922 if (nr == 5 && data->kind != nct6775)
1928 SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
1929 SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL,
1931 SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep,
1932 store_beep, FAN_ALARM_BASE);
1933 SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses,
1934 store_fan_pulses, 0);
1935 SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min,
1937 SENSOR_TEMPLATE(fan_div, "fan%d_div", S_IRUGO, show_fan_div, NULL, 0);
1940 * nct6775_fan_is_visible uses the index into the following array
1941 * to determine if attributes should be created or not.
1942 * Any change in order or content must be matched.
1944 static struct sensor_device_template *nct6775_attributes_fan_template[] = {
1945 &sensor_dev_template_fan_input,
1946 &sensor_dev_template_fan_alarm, /* 1 */
1947 &sensor_dev_template_fan_beep, /* 2 */
1948 &sensor_dev_template_fan_pulses,
1949 &sensor_dev_template_fan_min, /* 4 */
1950 &sensor_dev_template_fan_div, /* 5 */
1954 static struct sensor_template_group nct6775_fan_template_group = {
1955 .templates = nct6775_attributes_fan_template,
1956 .is_visible = nct6775_fan_is_visible,
1961 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1963 struct nct6775_data *data = nct6775_update_device(dev);
1964 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1965 int nr = sattr->index;
1967 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1971 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1973 struct nct6775_data *data = nct6775_update_device(dev);
1974 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1976 int index = sattr->index;
1978 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1982 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1985 struct nct6775_data *data = dev_get_drvdata(dev);
1986 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1988 int index = sattr->index;
1992 err = kstrtol(buf, 10, &val);
1996 mutex_lock(&data->update_lock);
1997 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1998 nct6775_write_temp(data, data->reg_temp[index][nr],
1999 data->temp[index][nr]);
2000 mutex_unlock(&data->update_lock);
2005 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
2007 struct nct6775_data *data = nct6775_update_device(dev);
2008 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2010 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
2014 store_temp_offset(struct device *dev, struct device_attribute *attr,
2015 const char *buf, size_t count)
2017 struct nct6775_data *data = dev_get_drvdata(dev);
2018 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2019 int nr = sattr->index;
2023 err = kstrtol(buf, 10, &val);
2027 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
2029 mutex_lock(&data->update_lock);
2030 data->temp_offset[nr] = val;
2031 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
2032 mutex_unlock(&data->update_lock);
2038 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
2040 struct nct6775_data *data = nct6775_update_device(dev);
2041 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2042 int nr = sattr->index;
2044 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
2048 store_temp_type(struct device *dev, struct device_attribute *attr,
2049 const char *buf, size_t count)
2051 struct nct6775_data *data = nct6775_update_device(dev);
2052 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2053 int nr = sattr->index;
2056 u8 vbat, diode, vbit, dbit;
2058 err = kstrtoul(buf, 10, &val);
2062 if (val != 1 && val != 3 && val != 4)
2065 mutex_lock(&data->update_lock);
2067 data->temp_type[nr] = val;
2069 dbit = data->DIODE_MASK << nr;
2070 vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit;
2071 diode = nct6775_read_value(data, data->REG_DIODE) & ~dbit;
2073 case 1: /* CPU diode (diode, current mode) */
2077 case 3: /* diode, voltage mode */
2080 case 4: /* thermistor */
2083 nct6775_write_value(data, data->REG_VBAT, vbat);
2084 nct6775_write_value(data, data->REG_DIODE, diode);
2086 mutex_unlock(&data->update_lock);
2090 static umode_t nct6775_temp_is_visible(struct kobject *kobj,
2091 struct attribute *attr, int index)
2093 struct device *dev = container_of(kobj, struct device, kobj);
2094 struct nct6775_data *data = dev_get_drvdata(dev);
2095 int temp = index / 10; /* temp index */
2096 int nr = index % 10; /* attribute index */
2098 if (!(data->have_temp & (1 << temp)))
2101 if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
2102 return 0; /* alarm */
2104 if (nr == 3 && find_temp_source(data, temp, data->num_temp_beeps) < 0)
2105 return 0; /* beep */
2107 if (nr == 4 && !data->reg_temp[1][temp]) /* max */
2110 if (nr == 5 && !data->reg_temp[2][temp]) /* max_hyst */
2113 if (nr == 6 && !data->reg_temp[3][temp]) /* crit */
2116 if (nr == 7 && !data->reg_temp[4][temp]) /* lcrit */
2119 /* offset and type only apply to fixed sensors */
2120 if (nr > 7 && !(data->have_temp_fixed & (1 << temp)))
2126 SENSOR_TEMPLATE_2(temp_input, "temp%d_input", S_IRUGO, show_temp, NULL, 0, 0);
2127 SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
2128 SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO | S_IWUSR, show_temp,
2130 SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR,
2131 show_temp, store_temp, 0, 2);
2132 SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp,
2134 SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp,
2136 SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR,
2137 show_temp_offset, store_temp_offset, 0);
2138 SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type,
2139 store_temp_type, 0);
2140 SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", S_IRUGO, show_temp_alarm, NULL, 0);
2141 SENSOR_TEMPLATE(temp_beep, "temp%d_beep", S_IRUGO | S_IWUSR, show_temp_beep,
2142 store_temp_beep, 0);
2145 * nct6775_temp_is_visible uses the index into the following array
2146 * to determine if attributes should be created or not.
2147 * Any change in order or content must be matched.
2149 static struct sensor_device_template *nct6775_attributes_temp_template[] = {
2150 &sensor_dev_template_temp_input,
2151 &sensor_dev_template_temp_label,
2152 &sensor_dev_template_temp_alarm, /* 2 */
2153 &sensor_dev_template_temp_beep, /* 3 */
2154 &sensor_dev_template_temp_max, /* 4 */
2155 &sensor_dev_template_temp_max_hyst, /* 5 */
2156 &sensor_dev_template_temp_crit, /* 6 */
2157 &sensor_dev_template_temp_lcrit, /* 7 */
2158 &sensor_dev_template_temp_offset, /* 8 */
2159 &sensor_dev_template_temp_type, /* 9 */
2163 static struct sensor_template_group nct6775_temp_template_group = {
2164 .templates = nct6775_attributes_temp_template,
2165 .is_visible = nct6775_temp_is_visible,
2170 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
2172 struct nct6775_data *data = nct6775_update_device(dev);
2173 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2175 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
2179 store_pwm_mode(struct device *dev, struct device_attribute *attr,
2180 const char *buf, size_t count)
2182 struct nct6775_data *data = dev_get_drvdata(dev);
2183 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2184 int nr = sattr->index;
2189 err = kstrtoul(buf, 10, &val);
2196 /* Setting DC mode is not supported for all chips/channels */
2197 if (data->REG_PWM_MODE[nr] == 0) {
2203 mutex_lock(&data->update_lock);
2204 data->pwm_mode[nr] = val;
2205 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
2206 reg &= ~data->PWM_MODE_MASK[nr];
2208 reg |= data->PWM_MODE_MASK[nr];
2209 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
2210 mutex_unlock(&data->update_lock);
2215 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2217 struct nct6775_data *data = nct6775_update_device(dev);
2218 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2220 int index = sattr->index;
2224 * For automatic fan control modes, show current pwm readings.
2225 * Otherwise, show the configured value.
2227 if (index == 0 && data->pwm_enable[nr] > manual)
2228 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
2230 pwm = data->pwm[index][nr];
2232 return sprintf(buf, "%d\n", pwm);
2236 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
2239 struct nct6775_data *data = dev_get_drvdata(dev);
2240 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2242 int index = sattr->index;
2244 int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
2246 = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
2250 err = kstrtoul(buf, 10, &val);
2253 val = clamp_val(val, minval[index], maxval[index]);
2255 mutex_lock(&data->update_lock);
2256 data->pwm[index][nr] = val;
2257 nct6775_write_value(data, data->REG_PWM[index][nr], val);
2258 if (index == 2) { /* floor: disable if val == 0 */
2259 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2263 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2265 mutex_unlock(&data->update_lock);
2269 /* Returns 0 if OK, -EINVAL otherwise */
2270 static int check_trip_points(struct nct6775_data *data, int nr)
2274 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2275 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
2278 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2279 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
2282 /* validate critical temperature and pwm if enabled (pwm > 0) */
2283 if (data->auto_pwm[nr][data->auto_pwm_num]) {
2284 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
2285 data->auto_temp[nr][data->auto_pwm_num] ||
2286 data->auto_pwm[nr][data->auto_pwm_num - 1] >
2287 data->auto_pwm[nr][data->auto_pwm_num])
2293 static void pwm_update_registers(struct nct6775_data *data, int nr)
2297 switch (data->pwm_enable[nr]) {
2302 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2303 reg = (reg & ~data->tolerance_mask) |
2304 (data->target_speed_tolerance[nr] & data->tolerance_mask);
2305 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2306 nct6775_write_value(data, data->REG_TARGET[nr],
2307 data->target_speed[nr] & 0xff);
2308 if (data->REG_TOLERANCE_H) {
2309 reg = (data->target_speed[nr] >> 8) & 0x0f;
2310 reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
2311 nct6775_write_value(data,
2312 data->REG_TOLERANCE_H[nr],
2316 case thermal_cruise:
2317 nct6775_write_value(data, data->REG_TARGET[nr],
2318 data->target_temp[nr]);
2321 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2322 reg = (reg & ~data->tolerance_mask) |
2323 data->temp_tolerance[0][nr];
2324 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2330 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
2332 struct nct6775_data *data = nct6775_update_device(dev);
2333 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2335 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
2339 store_pwm_enable(struct device *dev, struct device_attribute *attr,
2340 const char *buf, size_t count)
2342 struct nct6775_data *data = dev_get_drvdata(dev);
2343 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2344 int nr = sattr->index;
2349 err = kstrtoul(buf, 10, &val);
2356 if (val == sf3 && data->kind != nct6775)
2359 if (val == sf4 && check_trip_points(data, nr)) {
2360 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
2361 dev_err(dev, "Adjust trip points and try again\n");
2365 mutex_lock(&data->update_lock);
2366 data->pwm_enable[nr] = val;
2369 * turn off pwm control: select manual mode, set pwm to maximum
2371 data->pwm[0][nr] = 255;
2372 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
2374 pwm_update_registers(data, nr);
2375 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2377 reg |= pwm_enable_to_reg(val) << 4;
2378 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2379 mutex_unlock(&data->update_lock);
2384 show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)
2388 for (i = 0; i < NUM_TEMP; i++) {
2389 if (!(data->have_temp & (1 << i)))
2391 if (src == data->temp_src[i]) {
2397 return sprintf(buf, "%d\n", sel);
2401 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
2403 struct nct6775_data *data = nct6775_update_device(dev);
2404 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2405 int index = sattr->index;
2407 return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]);
2411 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
2412 const char *buf, size_t count)
2414 struct nct6775_data *data = nct6775_update_device(dev);
2415 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2416 int nr = sattr->index;
2420 err = kstrtoul(buf, 10, &val);
2423 if (val == 0 || val > NUM_TEMP)
2425 if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1])
2428 mutex_lock(&data->update_lock);
2429 src = data->temp_src[val - 1];
2430 data->pwm_temp_sel[nr] = src;
2431 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2434 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2435 mutex_unlock(&data->update_lock);
2441 show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2444 struct nct6775_data *data = nct6775_update_device(dev);
2445 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2446 int index = sattr->index;
2448 return show_pwm_temp_sel_common(data, buf,
2449 data->pwm_weight_temp_sel[index]);
2453 store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2454 const char *buf, size_t count)
2456 struct nct6775_data *data = nct6775_update_device(dev);
2457 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2458 int nr = sattr->index;
2462 err = kstrtoul(buf, 10, &val);
2467 if (val && (!(data->have_temp & (1 << (val - 1))) ||
2468 !data->temp_src[val - 1]))
2471 mutex_lock(&data->update_lock);
2473 src = data->temp_src[val - 1];
2474 data->pwm_weight_temp_sel[nr] = src;
2475 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2477 reg |= (src | 0x80);
2478 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2480 data->pwm_weight_temp_sel[nr] = 0;
2481 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2483 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2485 mutex_unlock(&data->update_lock);
2491 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
2493 struct nct6775_data *data = nct6775_update_device(dev);
2494 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2496 return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000);
2500 store_target_temp(struct device *dev, struct device_attribute *attr,
2501 const char *buf, size_t count)
2503 struct nct6775_data *data = dev_get_drvdata(dev);
2504 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2505 int nr = sattr->index;
2509 err = kstrtoul(buf, 10, &val);
2513 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0,
2514 data->target_temp_mask);
2516 mutex_lock(&data->update_lock);
2517 data->target_temp[nr] = val;
2518 pwm_update_registers(data, nr);
2519 mutex_unlock(&data->update_lock);
2524 show_target_speed(struct device *dev, struct device_attribute *attr, char *buf)
2526 struct nct6775_data *data = nct6775_update_device(dev);
2527 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2528 int nr = sattr->index;
2530 return sprintf(buf, "%d\n",
2531 fan_from_reg16(data->target_speed[nr],
2532 data->fan_div[nr]));
2536 store_target_speed(struct device *dev, struct device_attribute *attr,
2537 const char *buf, size_t count)
2539 struct nct6775_data *data = dev_get_drvdata(dev);
2540 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2541 int nr = sattr->index;
2546 err = kstrtoul(buf, 10, &val);
2550 val = clamp_val(val, 0, 1350000U);
2551 speed = fan_to_reg(val, data->fan_div[nr]);
2553 mutex_lock(&data->update_lock);
2554 data->target_speed[nr] = speed;
2555 pwm_update_registers(data, nr);
2556 mutex_unlock(&data->update_lock);
2561 show_temp_tolerance(struct device *dev, struct device_attribute *attr,
2564 struct nct6775_data *data = nct6775_update_device(dev);
2565 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2567 int index = sattr->index;
2569 return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000);
2573 store_temp_tolerance(struct device *dev, struct device_attribute *attr,
2574 const char *buf, size_t count)
2576 struct nct6775_data *data = dev_get_drvdata(dev);
2577 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2579 int index = sattr->index;
2583 err = kstrtoul(buf, 10, &val);
2587 /* Limit tolerance as needed */
2588 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask);
2590 mutex_lock(&data->update_lock);
2591 data->temp_tolerance[index][nr] = val;
2593 pwm_update_registers(data, nr);
2595 nct6775_write_value(data,
2596 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
2598 mutex_unlock(&data->update_lock);
2603 * Fan speed tolerance is a tricky beast, since the associated register is
2604 * a tick counter, but the value is reported and configured as rpm.
2605 * Compute resulting low and high rpm values and report the difference.
2608 show_speed_tolerance(struct device *dev, struct device_attribute *attr,
2611 struct nct6775_data *data = nct6775_update_device(dev);
2612 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2613 int nr = sattr->index;
2614 int low = data->target_speed[nr] - data->target_speed_tolerance[nr];
2615 int high = data->target_speed[nr] + data->target_speed_tolerance[nr];
2625 tolerance = (fan_from_reg16(low, data->fan_div[nr])
2626 - fan_from_reg16(high, data->fan_div[nr])) / 2;
2628 return sprintf(buf, "%d\n", tolerance);
2632 store_speed_tolerance(struct device *dev, struct device_attribute *attr,
2633 const char *buf, size_t count)
2635 struct nct6775_data *data = dev_get_drvdata(dev);
2636 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2637 int nr = sattr->index;
2642 err = kstrtoul(buf, 10, &val);
2646 high = fan_from_reg16(data->target_speed[nr],
2647 data->fan_div[nr]) + val;
2648 low = fan_from_reg16(data->target_speed[nr],
2649 data->fan_div[nr]) - val;
2655 val = (fan_to_reg(low, data->fan_div[nr]) -
2656 fan_to_reg(high, data->fan_div[nr])) / 2;
2658 /* Limit tolerance as needed */
2659 val = clamp_val(val, 0, data->speed_tolerance_limit);
2661 mutex_lock(&data->update_lock);
2662 data->target_speed_tolerance[nr] = val;
2663 pwm_update_registers(data, nr);
2664 mutex_unlock(&data->update_lock);
2668 SENSOR_TEMPLATE_2(pwm, "pwm%d", S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
2669 SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", S_IWUSR | S_IRUGO, show_pwm_mode,
2671 SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", S_IWUSR | S_IRUGO, show_pwm_enable,
2672 store_pwm_enable, 0);
2673 SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", S_IWUSR | S_IRUGO,
2674 show_pwm_temp_sel, store_pwm_temp_sel, 0);
2675 SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", S_IWUSR | S_IRUGO,
2676 show_target_temp, store_target_temp, 0);
2677 SENSOR_TEMPLATE(fan_target, "fan%d_target", S_IWUSR | S_IRUGO,
2678 show_target_speed, store_target_speed, 0);
2679 SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", S_IWUSR | S_IRUGO,
2680 show_speed_tolerance, store_speed_tolerance, 0);
2682 /* Smart Fan registers */
2685 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
2687 struct nct6775_data *data = nct6775_update_device(dev);
2688 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2690 int index = sattr->index;
2692 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
2696 store_weight_temp(struct device *dev, struct device_attribute *attr,
2697 const char *buf, size_t count)
2699 struct nct6775_data *data = dev_get_drvdata(dev);
2700 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2702 int index = sattr->index;
2706 err = kstrtoul(buf, 10, &val);
2710 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
2712 mutex_lock(&data->update_lock);
2713 data->weight_temp[index][nr] = val;
2714 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
2715 mutex_unlock(&data->update_lock);
2719 SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", S_IWUSR | S_IRUGO,
2720 show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0);
2721 SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step",
2722 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 0);
2723 SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol",
2724 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 1);
2725 SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base",
2726 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 2);
2727 SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step",
2728 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 5);
2729 SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base",
2730 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 6);
2733 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2735 struct nct6775_data *data = nct6775_update_device(dev);
2736 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2738 int index = sattr->index;
2740 return sprintf(buf, "%d\n",
2741 step_time_from_reg(data->fan_time[index][nr],
2742 data->pwm_mode[nr]));
2746 store_fan_time(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 index = sattr->index;
2756 err = kstrtoul(buf, 10, &val);
2760 val = step_time_to_reg(val, data->pwm_mode[nr]);
2761 mutex_lock(&data->update_lock);
2762 data->fan_time[index][nr] = val;
2763 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2764 mutex_unlock(&data->update_lock);
2768 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
2770 show_name(struct device *dev, struct device_attribute *attr, char *buf)
2772 struct nct6775_data *data = dev_get_drvdata(dev);
2774 return sprintf(buf, "%s\n", data->name);
2777 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
2781 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2783 struct nct6775_data *data = nct6775_update_device(dev);
2784 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2786 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2790 store_auto_pwm(struct device *dev, struct device_attribute *attr,
2791 const char *buf, size_t count)
2793 struct nct6775_data *data = dev_get_drvdata(dev);
2794 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2796 int point = sattr->index;
2801 err = kstrtoul(buf, 10, &val);
2807 if (point == data->auto_pwm_num) {
2808 if (data->kind != nct6775 && !val)
2810 if (data->kind != nct6779 && val)
2814 mutex_lock(&data->update_lock);
2815 data->auto_pwm[nr][point] = val;
2816 if (point < data->auto_pwm_num) {
2817 nct6775_write_value(data,
2818 NCT6775_AUTO_PWM(data, nr, point),
2819 data->auto_pwm[nr][point]);
2821 switch (data->kind) {
2823 /* disable if needed (pwm == 0) */
2824 reg = nct6775_read_value(data,
2825 NCT6775_REG_CRITICAL_ENAB[nr]);
2830 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2834 break; /* always enabled, nothing to do */
2839 nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
2841 reg = nct6775_read_value(data,
2842 data->REG_CRITICAL_PWM_ENABLE[nr]);
2844 reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
2846 reg |= data->CRITICAL_PWM_ENABLE_MASK;
2847 nct6775_write_value(data,
2848 data->REG_CRITICAL_PWM_ENABLE[nr],
2853 mutex_unlock(&data->update_lock);
2858 show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2860 struct nct6775_data *data = nct6775_update_device(dev);
2861 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2863 int point = sattr->index;
2866 * We don't know for sure if the temperature is signed or unsigned.
2867 * Assume it is unsigned.
2869 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2873 store_auto_temp(struct device *dev, struct device_attribute *attr,
2874 const char *buf, size_t count)
2876 struct nct6775_data *data = dev_get_drvdata(dev);
2877 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2879 int point = sattr->index;
2883 err = kstrtoul(buf, 10, &val);
2889 mutex_lock(&data->update_lock);
2890 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2891 if (point < data->auto_pwm_num) {
2892 nct6775_write_value(data,
2893 NCT6775_AUTO_TEMP(data, nr, point),
2894 data->auto_temp[nr][point]);
2896 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2897 data->auto_temp[nr][point]);
2899 mutex_unlock(&data->update_lock);
2903 static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
2904 struct attribute *attr, int index)
2906 struct device *dev = container_of(kobj, struct device, kobj);
2907 struct nct6775_data *data = dev_get_drvdata(dev);
2908 int pwm = index / 36; /* pwm index */
2909 int nr = index % 36; /* attribute index */
2911 if (!(data->has_pwm & (1 << pwm)))
2914 if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
2915 if (!data->REG_WEIGHT_TEMP_SEL[pwm])
2917 if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
2919 if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
2921 if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */
2924 if (nr >= 22 && nr <= 35) { /* auto point */
2925 int api = (nr - 22) / 2; /* auto point index */
2927 if (api > data->auto_pwm_num)
2933 SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", S_IWUSR | S_IRUGO,
2934 show_fan_time, store_fan_time, 0, 0);
2935 SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", S_IWUSR | S_IRUGO,
2936 show_fan_time, store_fan_time, 0, 1);
2937 SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", S_IWUSR | S_IRUGO,
2938 show_fan_time, store_fan_time, 0, 2);
2939 SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", S_IWUSR | S_IRUGO, show_pwm,
2941 SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", S_IWUSR | S_IRUGO, show_pwm,
2943 SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", S_IWUSR | S_IRUGO,
2944 show_temp_tolerance, store_temp_tolerance, 0, 0);
2945 SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance",
2946 S_IWUSR | S_IRUGO, show_temp_tolerance, store_temp_tolerance,
2949 SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2952 SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", S_IWUSR | S_IRUGO, show_pwm,
2955 SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm",
2956 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 0);
2957 SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp",
2958 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 0);
2960 SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm",
2961 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 1);
2962 SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp",
2963 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 1);
2965 SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm",
2966 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 2);
2967 SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp",
2968 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 2);
2970 SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm",
2971 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 3);
2972 SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp",
2973 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 3);
2975 SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm",
2976 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 4);
2977 SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp",
2978 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 4);
2980 SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm",
2981 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 5);
2982 SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp",
2983 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 5);
2985 SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm",
2986 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 6);
2987 SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp",
2988 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 6);
2991 * nct6775_pwm_is_visible uses the index into the following array
2992 * to determine if attributes should be created or not.
2993 * Any change in order or content must be matched.
2995 static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
2996 &sensor_dev_template_pwm,
2997 &sensor_dev_template_pwm_mode,
2998 &sensor_dev_template_pwm_enable,
2999 &sensor_dev_template_pwm_temp_sel,
3000 &sensor_dev_template_pwm_temp_tolerance,
3001 &sensor_dev_template_pwm_crit_temp_tolerance,
3002 &sensor_dev_template_pwm_target_temp,
3003 &sensor_dev_template_fan_target,
3004 &sensor_dev_template_fan_tolerance,
3005 &sensor_dev_template_pwm_stop_time,
3006 &sensor_dev_template_pwm_step_up_time,
3007 &sensor_dev_template_pwm_step_down_time,
3008 &sensor_dev_template_pwm_start,
3009 &sensor_dev_template_pwm_floor,
3010 &sensor_dev_template_pwm_weight_temp_sel, /* 14 */
3011 &sensor_dev_template_pwm_weight_temp_step,
3012 &sensor_dev_template_pwm_weight_temp_step_tol,
3013 &sensor_dev_template_pwm_weight_temp_step_base,
3014 &sensor_dev_template_pwm_weight_duty_step, /* 18 */
3015 &sensor_dev_template_pwm_max, /* 19 */
3016 &sensor_dev_template_pwm_step, /* 20 */
3017 &sensor_dev_template_pwm_weight_duty_base, /* 21 */
3018 &sensor_dev_template_pwm_auto_point1_pwm, /* 22 */
3019 &sensor_dev_template_pwm_auto_point1_temp,
3020 &sensor_dev_template_pwm_auto_point2_pwm,
3021 &sensor_dev_template_pwm_auto_point2_temp,
3022 &sensor_dev_template_pwm_auto_point3_pwm,
3023 &sensor_dev_template_pwm_auto_point3_temp,
3024 &sensor_dev_template_pwm_auto_point4_pwm,
3025 &sensor_dev_template_pwm_auto_point4_temp,
3026 &sensor_dev_template_pwm_auto_point5_pwm,
3027 &sensor_dev_template_pwm_auto_point5_temp,
3028 &sensor_dev_template_pwm_auto_point6_pwm,
3029 &sensor_dev_template_pwm_auto_point6_temp,
3030 &sensor_dev_template_pwm_auto_point7_pwm,
3031 &sensor_dev_template_pwm_auto_point7_temp, /* 35 */
3036 static struct sensor_template_group nct6775_pwm_template_group = {
3037 .templates = nct6775_attributes_pwm_template,
3038 .is_visible = nct6775_pwm_is_visible,
3043 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
3045 struct nct6775_data *data = dev_get_drvdata(dev);
3047 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
3050 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
3052 /* Case open detection */
3055 clear_caseopen(struct device *dev, struct device_attribute *attr,
3056 const char *buf, size_t count)
3058 struct nct6775_data *data = dev_get_drvdata(dev);
3059 int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
3064 if (kstrtoul(buf, 10, &val) || val != 0)
3067 mutex_lock(&data->update_lock);
3070 * Use CR registers to clear caseopen status.
3071 * The CR registers are the same for all chips, and not all chips
3072 * support clearing the caseopen status through "regular" registers.
3074 ret = superio_enter(data->sioreg);
3080 superio_select(data->sioreg, NCT6775_LD_ACPI);
3081 reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
3082 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3083 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3084 reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3085 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3086 superio_exit(data->sioreg);
3088 data->valid = false; /* Force cache refresh */
3090 mutex_unlock(&data->update_lock);
3094 static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
3095 clear_caseopen, INTRUSION_ALARM_BASE);
3096 static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
3097 clear_caseopen, INTRUSION_ALARM_BASE + 1);
3098 static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep,
3099 store_beep, INTRUSION_ALARM_BASE);
3100 static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep,
3101 store_beep, INTRUSION_ALARM_BASE + 1);
3102 static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep,
3103 store_beep, BEEP_ENABLE_BASE);
3105 static umode_t nct6775_other_is_visible(struct kobject *kobj,
3106 struct attribute *attr, int index)
3108 struct device *dev = container_of(kobj, struct device, kobj);
3109 struct nct6775_data *data = dev_get_drvdata(dev);
3111 if (index == 0 && !data->have_vid)
3114 if (index == 1 || index == 2) {
3115 if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
3119 if (index == 3 || index == 4) {
3120 if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
3128 * nct6775_other_is_visible uses the index into the following array
3129 * to determine if attributes should be created or not.
3130 * Any change in order or content must be matched.
3132 static struct attribute *nct6775_attributes_other[] = {
3133 &dev_attr_cpu0_vid.attr, /* 0 */
3134 &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
3135 &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
3136 &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
3137 &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
3138 &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
3139 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
3140 &dev_attr_name.attr,
3145 static const struct attribute_group nct6775_group_other = {
3146 .attrs = nct6775_attributes_other,
3147 .is_visible = nct6775_other_is_visible,
3150 static inline void nct6775_init_device(struct nct6775_data *data)
3155 /* Start monitoring if needed */
3156 if (data->REG_CONFIG) {
3157 tmp = nct6775_read_value(data, data->REG_CONFIG);
3159 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
3162 /* Enable temperature sensors if needed */
3163 for (i = 0; i < NUM_TEMP; i++) {
3164 if (!(data->have_temp & (1 << i)))
3166 if (!data->reg_temp_config[i])
3168 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
3170 nct6775_write_value(data, data->reg_temp_config[i],
3174 /* Enable VBAT monitoring if needed */
3175 tmp = nct6775_read_value(data, data->REG_VBAT);
3177 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
3179 diode = nct6775_read_value(data, data->REG_DIODE);
3181 for (i = 0; i < data->temp_fixed_num; i++) {
3182 if (!(data->have_temp_fixed & (1 << i)))
3184 if ((tmp & (data->DIODE_MASK << i))) /* diode */
3186 = 3 - ((diode >> i) & data->DIODE_MASK);
3187 else /* thermistor */
3188 data->temp_type[i] = 4;
3193 nct6775_check_fan_inputs(struct nct6775_data *data)
3195 bool fan3pin, fan4pin, fan4min, fan5pin, fan6pin;
3196 bool pwm3pin, pwm4pin, pwm5pin, pwm6pin;
3197 int sioreg = data->sioreg;
3200 /* fan4 and fan5 share some pins with the GPIO and serial flash */
3201 if (data->kind == nct6775) {
3202 regval = superio_inb(sioreg, 0x2c);
3204 fan3pin = regval & (1 << 6);
3205 pwm3pin = regval & (1 << 7);
3207 /* On NCT6775, fan4 shares pins with the fdc interface */
3208 fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
3215 } else if (data->kind == nct6776) {
3216 bool gpok = superio_inb(sioreg, 0x27) & 0x80;
3218 superio_select(sioreg, NCT6775_LD_HWM);
3219 regval = superio_inb(sioreg, SIO_REG_ENABLE);
3224 fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
3229 fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
3234 fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
3242 } else if (data->kind == nct6106) {
3243 regval = superio_inb(sioreg, 0x24);
3244 fan3pin = !(regval & 0x80);
3245 pwm3pin = regval & 0x08;
3254 } else { /* NCT6779D, NCT6791D, or NCT6792D */
3255 regval = superio_inb(sioreg, 0x1c);
3257 fan3pin = !(regval & (1 << 5));
3258 fan4pin = !(regval & (1 << 6));
3259 fan5pin = !(regval & (1 << 7));
3261 pwm3pin = !(regval & (1 << 0));
3262 pwm4pin = !(regval & (1 << 1));
3263 pwm5pin = !(regval & (1 << 2));
3267 if (data->kind == nct6791 || data->kind == nct6792) {
3268 regval = superio_inb(sioreg, 0x2d);
3269 fan6pin = (regval & (1 << 1));
3270 pwm6pin = (regval & (1 << 0));
3271 } else { /* NCT6779D */
3277 /* fan 1 and 2 (0x03) are always present */
3278 data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
3279 (fan5pin << 4) | (fan6pin << 5);
3280 data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
3282 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
3283 (pwm5pin << 4) | (pwm6pin << 5);
3286 static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
3287 int *available, int *mask)
3292 for (i = 0; i < data->pwm_num && *available; i++) {
3297 src = nct6775_read_value(data, regp[i]);
3299 if (!src || (*mask & (1 << src)))
3301 if (src >= data->temp_label_num ||
3302 !strlen(data->temp_label[src]))
3305 index = __ffs(*available);
3306 nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
3307 *available &= ~(1 << index);
3312 static int nct6775_probe(struct platform_device *pdev)
3314 struct device *dev = &pdev->dev;
3315 struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
3316 struct nct6775_data *data;
3317 struct resource *res;
3319 int src, mask, available;
3320 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
3321 const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
3322 const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
3323 int num_reg_temp, num_reg_temp_mon;
3325 struct attribute_group *group;
3326 struct device *hwmon_dev;
3327 int num_attr_groups = 0;
3329 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
3330 if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
3334 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3339 data->kind = sio_data->kind;
3340 data->sioreg = sio_data->sioreg;
3341 data->addr = res->start;
3342 mutex_init(&data->update_lock);
3343 data->name = nct6775_device_names[data->kind];
3344 data->bank = 0xff; /* Force initial bank selection */
3345 platform_set_drvdata(pdev, data);
3347 switch (data->kind) {
3351 data->auto_pwm_num = 4;
3352 data->temp_fixed_num = 3;
3353 data->num_temp_alarms = 6;
3354 data->num_temp_beeps = 6;
3356 data->fan_from_reg = fan_from_reg13;
3357 data->fan_from_reg_min = fan_from_reg13;
3359 data->temp_label = nct6776_temp_label;
3360 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3362 data->REG_VBAT = NCT6106_REG_VBAT;
3363 data->REG_DIODE = NCT6106_REG_DIODE;
3364 data->DIODE_MASK = NCT6106_DIODE_MASK;
3365 data->REG_VIN = NCT6106_REG_IN;
3366 data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
3367 data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
3368 data->REG_TARGET = NCT6106_REG_TARGET;
3369 data->REG_FAN = NCT6106_REG_FAN;
3370 data->REG_FAN_MODE = NCT6106_REG_FAN_MODE;
3371 data->REG_FAN_MIN = NCT6106_REG_FAN_MIN;
3372 data->REG_FAN_PULSES = NCT6106_REG_FAN_PULSES;
3373 data->FAN_PULSE_SHIFT = NCT6106_FAN_PULSE_SHIFT;
3374 data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME;
3375 data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME;
3376 data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME;
3377 data->REG_PWM[0] = NCT6106_REG_PWM;
3378 data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT;
3379 data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT;
3380 data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
3381 data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
3382 data->REG_PWM_READ = NCT6106_REG_PWM_READ;
3383 data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
3384 data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
3385 data->REG_AUTO_TEMP = NCT6106_REG_AUTO_TEMP;
3386 data->REG_AUTO_PWM = NCT6106_REG_AUTO_PWM;
3387 data->REG_CRITICAL_TEMP = NCT6106_REG_CRITICAL_TEMP;
3388 data->REG_CRITICAL_TEMP_TOLERANCE
3389 = NCT6106_REG_CRITICAL_TEMP_TOLERANCE;
3390 data->REG_CRITICAL_PWM_ENABLE = NCT6106_REG_CRITICAL_PWM_ENABLE;
3391 data->CRITICAL_PWM_ENABLE_MASK
3392 = NCT6106_CRITICAL_PWM_ENABLE_MASK;
3393 data->REG_CRITICAL_PWM = NCT6106_REG_CRITICAL_PWM;
3394 data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
3395 data->REG_TEMP_SOURCE = NCT6106_REG_TEMP_SOURCE;
3396 data->REG_TEMP_SEL = NCT6106_REG_TEMP_SEL;
3397 data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
3398 data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
3399 data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
3400 data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
3401 data->REG_ALARM = NCT6106_REG_ALARM;
3402 data->ALARM_BITS = NCT6106_ALARM_BITS;
3403 data->REG_BEEP = NCT6106_REG_BEEP;
3404 data->BEEP_BITS = NCT6106_BEEP_BITS;
3406 reg_temp = NCT6106_REG_TEMP;
3407 reg_temp_mon = NCT6106_REG_TEMP_MON;
3408 num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
3409 num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
3410 reg_temp_over = NCT6106_REG_TEMP_OVER;
3411 reg_temp_hyst = NCT6106_REG_TEMP_HYST;
3412 reg_temp_config = NCT6106_REG_TEMP_CONFIG;
3413 reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
3414 reg_temp_crit = NCT6106_REG_TEMP_CRIT;
3415 reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
3416 reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
3422 data->auto_pwm_num = 6;
3423 data->has_fan_div = true;
3424 data->temp_fixed_num = 3;
3425 data->num_temp_alarms = 3;
3426 data->num_temp_beeps = 3;
3428 data->ALARM_BITS = NCT6775_ALARM_BITS;
3429 data->BEEP_BITS = NCT6775_BEEP_BITS;
3431 data->fan_from_reg = fan_from_reg16;
3432 data->fan_from_reg_min = fan_from_reg8;
3433 data->target_temp_mask = 0x7f;
3434 data->tolerance_mask = 0x0f;
3435 data->speed_tolerance_limit = 15;
3437 data->temp_label = nct6775_temp_label;
3438 data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
3440 data->REG_CONFIG = NCT6775_REG_CONFIG;
3441 data->REG_VBAT = NCT6775_REG_VBAT;
3442 data->REG_DIODE = NCT6775_REG_DIODE;
3443 data->DIODE_MASK = NCT6775_DIODE_MASK;
3444 data->REG_VIN = NCT6775_REG_IN;
3445 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3446 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3447 data->REG_TARGET = NCT6775_REG_TARGET;
3448 data->REG_FAN = NCT6775_REG_FAN;
3449 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3450 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
3451 data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES;
3452 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3453 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3454 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3455 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3456 data->REG_PWM[0] = NCT6775_REG_PWM;
3457 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3458 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3459 data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
3460 data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
3461 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3462 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3463 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
3464 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
3465 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3466 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3467 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3468 data->REG_CRITICAL_TEMP_TOLERANCE
3469 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3470 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3471 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3472 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3473 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3474 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3475 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3476 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3477 data->REG_ALARM = NCT6775_REG_ALARM;
3478 data->REG_BEEP = NCT6775_REG_BEEP;
3480 reg_temp = NCT6775_REG_TEMP;
3481 reg_temp_mon = NCT6775_REG_TEMP_MON;
3482 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3483 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
3484 reg_temp_over = NCT6775_REG_TEMP_OVER;
3485 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3486 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
3487 reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE;
3488 reg_temp_crit = NCT6775_REG_TEMP_CRIT;
3494 data->auto_pwm_num = 4;
3495 data->has_fan_div = false;
3496 data->temp_fixed_num = 3;
3497 data->num_temp_alarms = 3;
3498 data->num_temp_beeps = 6;
3500 data->ALARM_BITS = NCT6776_ALARM_BITS;
3501 data->BEEP_BITS = NCT6776_BEEP_BITS;
3503 data->fan_from_reg = fan_from_reg13;
3504 data->fan_from_reg_min = fan_from_reg13;
3505 data->target_temp_mask = 0xff;
3506 data->tolerance_mask = 0x07;
3507 data->speed_tolerance_limit = 63;
3509 data->temp_label = nct6776_temp_label;
3510 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3512 data->REG_CONFIG = NCT6775_REG_CONFIG;
3513 data->REG_VBAT = NCT6775_REG_VBAT;
3514 data->REG_DIODE = NCT6775_REG_DIODE;
3515 data->DIODE_MASK = NCT6775_DIODE_MASK;
3516 data->REG_VIN = NCT6775_REG_IN;
3517 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3518 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3519 data->REG_TARGET = NCT6775_REG_TARGET;
3520 data->REG_FAN = NCT6775_REG_FAN;
3521 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3522 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3523 data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
3524 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3525 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3526 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3527 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3528 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3529 data->REG_PWM[0] = NCT6775_REG_PWM;
3530 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3531 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3532 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3533 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3534 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3535 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3536 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3537 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3538 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3539 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3540 data->REG_CRITICAL_TEMP_TOLERANCE
3541 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3542 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3543 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3544 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3545 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3546 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3547 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3548 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3549 data->REG_ALARM = NCT6775_REG_ALARM;
3550 data->REG_BEEP = NCT6776_REG_BEEP;
3552 reg_temp = NCT6775_REG_TEMP;
3553 reg_temp_mon = NCT6775_REG_TEMP_MON;
3554 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3555 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
3556 reg_temp_over = NCT6775_REG_TEMP_OVER;
3557 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3558 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3559 reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE;
3560 reg_temp_crit = NCT6776_REG_TEMP_CRIT;
3566 data->auto_pwm_num = 4;
3567 data->has_fan_div = false;
3568 data->temp_fixed_num = 6;
3569 data->num_temp_alarms = 2;
3570 data->num_temp_beeps = 2;
3572 data->ALARM_BITS = NCT6779_ALARM_BITS;
3573 data->BEEP_BITS = NCT6779_BEEP_BITS;
3575 data->fan_from_reg = fan_from_reg13;
3576 data->fan_from_reg_min = fan_from_reg13;
3577 data->target_temp_mask = 0xff;
3578 data->tolerance_mask = 0x07;
3579 data->speed_tolerance_limit = 63;
3581 data->temp_label = nct6779_temp_label;
3582 data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
3584 data->REG_CONFIG = NCT6775_REG_CONFIG;
3585 data->REG_VBAT = NCT6775_REG_VBAT;
3586 data->REG_DIODE = NCT6775_REG_DIODE;
3587 data->DIODE_MASK = NCT6775_DIODE_MASK;
3588 data->REG_VIN = NCT6779_REG_IN;
3589 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3590 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3591 data->REG_TARGET = NCT6775_REG_TARGET;
3592 data->REG_FAN = NCT6779_REG_FAN;
3593 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3594 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3595 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
3596 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3597 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3598 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3599 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3600 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3601 data->REG_PWM[0] = NCT6775_REG_PWM;
3602 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3603 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3604 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3605 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3606 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3607 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3608 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3609 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3610 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3611 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3612 data->REG_CRITICAL_TEMP_TOLERANCE
3613 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3614 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
3615 data->CRITICAL_PWM_ENABLE_MASK
3616 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
3617 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
3618 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3619 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3620 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3621 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3622 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3623 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3624 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3625 data->REG_ALARM = NCT6779_REG_ALARM;
3626 data->REG_BEEP = NCT6776_REG_BEEP;
3628 reg_temp = NCT6779_REG_TEMP;
3629 reg_temp_mon = NCT6779_REG_TEMP_MON;
3630 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3631 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
3632 reg_temp_over = NCT6779_REG_TEMP_OVER;
3633 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3634 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3635 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3636 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3643 data->auto_pwm_num = 4;
3644 data->has_fan_div = false;
3645 data->temp_fixed_num = 6;
3646 data->num_temp_alarms = 2;
3647 data->num_temp_beeps = 2;
3649 data->ALARM_BITS = NCT6791_ALARM_BITS;
3650 data->BEEP_BITS = NCT6779_BEEP_BITS;
3652 data->fan_from_reg = fan_from_reg13;
3653 data->fan_from_reg_min = fan_from_reg13;
3654 data->target_temp_mask = 0xff;
3655 data->tolerance_mask = 0x07;
3656 data->speed_tolerance_limit = 63;
3658 data->temp_label = nct6779_temp_label;
3659 data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
3661 data->REG_CONFIG = NCT6775_REG_CONFIG;
3662 data->REG_VBAT = NCT6775_REG_VBAT;
3663 data->REG_DIODE = NCT6775_REG_DIODE;
3664 data->DIODE_MASK = NCT6775_DIODE_MASK;
3665 data->REG_VIN = NCT6779_REG_IN;
3666 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3667 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3668 data->REG_TARGET = NCT6775_REG_TARGET;
3669 data->REG_FAN = NCT6779_REG_FAN;
3670 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3671 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3672 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
3673 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3674 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3675 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3676 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3677 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3678 data->REG_PWM[0] = NCT6775_REG_PWM;
3679 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3680 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3681 data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP;
3682 data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE;
3683 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3684 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3685 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3686 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3687 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3688 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3689 data->REG_CRITICAL_TEMP_TOLERANCE
3690 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3691 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
3692 data->CRITICAL_PWM_ENABLE_MASK
3693 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
3694 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
3695 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3696 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3697 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3698 data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL;
3699 data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP;
3700 data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL;
3701 data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE;
3702 data->REG_ALARM = NCT6791_REG_ALARM;
3703 if (data->kind == nct6791)
3704 data->REG_BEEP = NCT6776_REG_BEEP;
3706 data->REG_BEEP = NCT6792_REG_BEEP;
3708 reg_temp = NCT6779_REG_TEMP;
3709 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3710 if (data->kind == nct6791) {
3711 reg_temp_mon = NCT6779_REG_TEMP_MON;
3712 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
3714 reg_temp_mon = NCT6792_REG_TEMP_MON;
3715 num_reg_temp_mon = ARRAY_SIZE(NCT6792_REG_TEMP_MON);
3717 reg_temp_over = NCT6779_REG_TEMP_OVER;
3718 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3719 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3720 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3721 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3727 data->have_in = (1 << data->in_num) - 1;
3728 data->have_temp = 0;
3731 * On some boards, not all available temperature sources are monitored,
3732 * even though some of the monitoring registers are unused.
3733 * Get list of unused monitoring registers, then detect if any fan
3734 * controls are configured to use unmonitored temperature sources.
3735 * If so, assign the unmonitored temperature sources to available
3736 * monitoring registers.
3740 for (i = 0; i < num_reg_temp; i++) {
3741 if (reg_temp[i] == 0)
3744 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3745 if (!src || (mask & (1 << src)))
3746 available |= 1 << i;
3752 * Now find unmonitored temperature registers and enable monitoring
3753 * if additional monitoring registers are available.
3755 add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask);
3756 add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask);
3759 s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
3760 for (i = 0; i < num_reg_temp; i++) {
3761 if (reg_temp[i] == 0)
3764 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3765 if (!src || (mask & (1 << src)))
3768 if (src >= data->temp_label_num ||
3769 !strlen(data->temp_label[src])) {
3771 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3772 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
3778 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3779 if (src <= data->temp_fixed_num) {
3780 data->have_temp |= 1 << (src - 1);
3781 data->have_temp_fixed |= 1 << (src - 1);
3782 data->reg_temp[0][src - 1] = reg_temp[i];
3783 data->reg_temp[1][src - 1] = reg_temp_over[i];
3784 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
3785 if (reg_temp_crit_h && reg_temp_crit_h[i])
3786 data->reg_temp[3][src - 1] = reg_temp_crit_h[i];
3787 else if (reg_temp_crit[src - 1])
3788 data->reg_temp[3][src - 1]
3789 = reg_temp_crit[src - 1];
3790 if (reg_temp_crit_l && reg_temp_crit_l[i])
3791 data->reg_temp[4][src - 1] = reg_temp_crit_l[i];
3792 data->reg_temp_config[src - 1] = reg_temp_config[i];
3793 data->temp_src[src - 1] = src;
3800 /* Use dynamic index for other sources */
3801 data->have_temp |= 1 << s;
3802 data->reg_temp[0][s] = reg_temp[i];
3803 data->reg_temp[1][s] = reg_temp_over[i];
3804 data->reg_temp[2][s] = reg_temp_hyst[i];
3805 data->reg_temp_config[s] = reg_temp_config[i];
3806 if (reg_temp_crit_h && reg_temp_crit_h[i])
3807 data->reg_temp[3][s] = reg_temp_crit_h[i];
3808 else if (reg_temp_crit[src - 1])
3809 data->reg_temp[3][s] = reg_temp_crit[src - 1];
3810 if (reg_temp_crit_l && reg_temp_crit_l[i])
3811 data->reg_temp[4][s] = reg_temp_crit_l[i];
3813 data->temp_src[s] = src;
3818 * Repeat with temperatures used for fan control.
3819 * This set of registers does not support limits.
3821 for (i = 0; i < num_reg_temp_mon; i++) {
3822 if (reg_temp_mon[i] == 0)
3825 src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
3826 if (!src || (mask & (1 << src)))
3829 if (src >= data->temp_label_num ||
3830 !strlen(data->temp_label[src])) {
3832 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3833 src, i, data->REG_TEMP_SEL[i],
3840 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3841 if (src <= data->temp_fixed_num) {
3842 if (data->have_temp & (1 << (src - 1)))
3844 data->have_temp |= 1 << (src - 1);
3845 data->have_temp_fixed |= 1 << (src - 1);
3846 data->reg_temp[0][src - 1] = reg_temp_mon[i];
3847 data->temp_src[src - 1] = src;
3854 /* Use dynamic index for other sources */
3855 data->have_temp |= 1 << s;
3856 data->reg_temp[0][s] = reg_temp_mon[i];
3857 data->temp_src[s] = src;
3861 #ifdef USE_ALTERNATE
3863 * Go through the list of alternate temp registers and enable
3865 * The temperature is already monitored if the respective bit in <mask>
3868 for (i = 0; i < data->temp_label_num - 1; i++) {
3869 if (!reg_temp_alternate[i])
3871 if (mask & (1 << (i + 1)))
3873 if (i < data->temp_fixed_num) {
3874 if (data->have_temp & (1 << i))
3876 data->have_temp |= 1 << i;
3877 data->have_temp_fixed |= 1 << i;
3878 data->reg_temp[0][i] = reg_temp_alternate[i];
3879 if (i < num_reg_temp) {
3880 data->reg_temp[1][i] = reg_temp_over[i];
3881 data->reg_temp[2][i] = reg_temp_hyst[i];
3883 data->temp_src[i] = i + 1;
3887 if (s >= NUM_TEMP) /* Abort if no more space */
3890 data->have_temp |= 1 << s;
3891 data->reg_temp[0][s] = reg_temp_alternate[i];
3892 data->temp_src[s] = i + 1;
3895 #endif /* USE_ALTERNATE */
3897 /* Initialize the chip */
3898 nct6775_init_device(data);
3900 err = superio_enter(sio_data->sioreg);
3904 cr2a = superio_inb(sio_data->sioreg, 0x2a);
3905 switch (data->kind) {
3907 data->have_vid = (cr2a & 0x40);
3910 data->have_vid = (cr2a & 0x60) == 0x40;
3921 * We can get the VID input values directly at logical device D 0xe3.
3923 if (data->have_vid) {
3924 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3925 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3926 data->vrm = vid_which_vrm();
3932 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3933 tmp = superio_inb(sio_data->sioreg,
3934 NCT6775_REG_CR_FAN_DEBOUNCE);
3935 switch (data->kind) {
3951 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3953 dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
3957 nct6775_check_fan_inputs(data);
3959 superio_exit(sio_data->sioreg);
3961 /* Read fan clock dividers immediately */
3962 nct6775_init_fan_common(dev, data);
3964 /* Register sysfs hooks */
3965 group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group,
3968 return PTR_ERR(group);
3970 data->groups[num_attr_groups++] = group;
3972 group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
3973 fls(data->have_in));
3975 return PTR_ERR(group);
3977 data->groups[num_attr_groups++] = group;
3979 group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
3980 fls(data->has_fan));
3982 return PTR_ERR(group);
3984 data->groups[num_attr_groups++] = group;
3986 group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
3987 fls(data->have_temp));
3989 return PTR_ERR(group);
3991 data->groups[num_attr_groups++] = group;
3992 data->groups[num_attr_groups++] = &nct6775_group_other;
3994 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
3995 err = sysfs_create_groups(&dev->kobj, data->groups);
3998 hwmon_dev = hwmon_device_register(dev);
3999 if (IS_ERR(hwmon_dev)) {
4000 sysfs_remove_groups(&dev->kobj, data->groups);
4001 return PTR_ERR(hwmon_dev);
4003 data->hwmon_dev = hwmon_dev;
4005 hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
4006 data, data->groups);
4008 return PTR_ERR_OR_ZERO(hwmon_dev);
4011 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
4012 static int nct6775_remove(struct platform_device *pdev)
4014 struct nct6775_data *data = platform_get_drvdata(pdev);
4016 hwmon_device_unregister(data->hwmon_dev);
4017 sysfs_remove_groups(&pdev->dev.kobj, data->groups);
4022 static void nct6791_enable_io_mapping(int sioaddr)
4026 val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
4028 pr_info("Enabling hardware monitor logical device mappings.\n");
4029 superio_outb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
4035 static int nct6775_suspend(struct device *dev)
4037 struct nct6775_data *data = nct6775_update_device(dev);
4039 mutex_lock(&data->update_lock);
4040 data->vbat = nct6775_read_value(data, data->REG_VBAT);
4041 if (data->kind == nct6775) {
4042 data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1);
4043 data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2);
4045 mutex_unlock(&data->update_lock);
4050 static int nct6775_resume(struct device *dev)
4052 struct nct6775_data *data = dev_get_drvdata(dev);
4055 mutex_lock(&data->update_lock);
4056 data->bank = 0xff; /* Force initial bank selection */
4058 if (data->kind == nct6791 || data->kind == nct6792) {
4059 err = superio_enter(data->sioreg);
4063 nct6791_enable_io_mapping(data->sioreg);
4064 superio_exit(data->sioreg);
4067 /* Restore limits */
4068 for (i = 0; i < data->in_num; i++) {
4069 if (!(data->have_in & (1 << i)))
4072 nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
4074 nct6775_write_value(data, data->REG_IN_MINMAX[1][i],
4078 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
4079 if (!(data->has_fan_min & (1 << i)))
4082 nct6775_write_value(data, data->REG_FAN_MIN[i],
4086 for (i = 0; i < NUM_TEMP; i++) {
4087 if (!(data->have_temp & (1 << i)))
4090 for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
4091 if (data->reg_temp[j][i])
4092 nct6775_write_temp(data, data->reg_temp[j][i],
4096 /* Restore other settings */
4097 nct6775_write_value(data, data->REG_VBAT, data->vbat);
4098 if (data->kind == nct6775) {
4099 nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
4100 nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
4104 /* Force re-reading all values */
4105 data->valid = false;
4106 mutex_unlock(&data->update_lock);
4111 static const struct dev_pm_ops nct6775_dev_pm_ops = {
4112 .suspend = nct6775_suspend,
4113 .resume = nct6775_resume,
4114 .freeze = nct6775_suspend,
4115 .restore = nct6775_resume,
4118 #define NCT6775_DEV_PM_OPS (&nct6775_dev_pm_ops)
4120 #define NCT6775_DEV_PM_OPS NULL
4121 #endif /* CONFIG_PM */
4123 static struct platform_driver nct6775_driver = {
4125 .owner = THIS_MODULE,
4127 .pm = NCT6775_DEV_PM_OPS,
4129 .probe = nct6775_probe,
4130 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0)
4131 .remove = nct6775_remove,
4135 static const char * const nct6775_sio_names[] __initconst = {
4144 /* nct6775_find() looks for a '627 in the Super-I/O config space */
4145 static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
4151 err = superio_enter(sioaddr);
4158 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
4159 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
4160 switch (val & SIO_ID_MASK) {
4161 case SIO_NCT6106_ID:
4162 sio_data->kind = nct6106;
4164 case SIO_NCT6775_ID:
4165 sio_data->kind = nct6775;
4167 case SIO_NCT6776_ID:
4168 sio_data->kind = nct6776;
4170 case SIO_NCT6779_ID:
4171 sio_data->kind = nct6779;
4173 case SIO_NCT6791_ID:
4174 sio_data->kind = nct6791;
4176 case SIO_NCT6792_ID:
4177 sio_data->kind = nct6792;
4181 pr_debug("unsupported chip ID: 0x%04x\n", val);
4182 superio_exit(sioaddr);
4186 /* We have a known chip, find the HWM I/O address */
4187 superio_select(sioaddr, NCT6775_LD_HWM);
4188 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
4189 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
4190 addr = val & IOREGION_ALIGNMENT;
4192 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
4193 superio_exit(sioaddr);
4197 /* Activate logical device if needed */
4198 val = superio_inb(sioaddr, SIO_REG_ENABLE);
4199 if (!(val & 0x01)) {
4200 pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
4201 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
4204 if (sio_data->kind == nct6791 || sio_data->kind == nct6792)
4205 nct6791_enable_io_mapping(sioaddr);
4207 superio_exit(sioaddr);
4208 pr_info("Found %s or compatible chip at %#x:%#x\n",
4209 nct6775_sio_names[sio_data->kind], sioaddr, addr);
4210 sio_data->sioreg = sioaddr;
4216 * when Super-I/O functions move to a separate file, the Super-I/O
4217 * bus will manage the lifetime of the device and this module will only keep
4218 * track of the nct6775 driver. But since we use platform_device_alloc(), we
4219 * must keep track of the device
4221 static struct platform_device *pdev[2];
4223 static int __init sensors_nct6775_init(void)
4228 struct resource res;
4229 struct nct6775_sio_data sio_data;
4230 int sioaddr[2] = { 0x2e, 0x4e };
4232 err = platform_driver_register(&nct6775_driver);
4237 * initialize sio_data->kind and sio_data->sioreg.
4239 * when Super-I/O functions move to a separate file, the Super-I/O
4240 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
4241 * nct6775 hardware monitor, and call probe()
4243 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4244 address = nct6775_find(sioaddr[i], &sio_data);
4250 pdev[i] = platform_device_alloc(DRVNAME, address);
4253 goto exit_device_unregister;
4256 err = platform_device_add_data(pdev[i], &sio_data,
4257 sizeof(struct nct6775_sio_data));
4259 goto exit_device_put;
4261 memset(&res, 0, sizeof(res));
4263 res.start = address + IOREGION_OFFSET;
4264 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
4265 res.flags = IORESOURCE_IO;
4267 err = acpi_check_resource_conflict(&res);
4269 platform_device_put(pdev[i]);
4274 err = platform_device_add_resources(pdev[i], &res, 1);
4276 goto exit_device_put;
4278 /* platform_device_add calls probe() */
4279 err = platform_device_add(pdev[i]);
4281 goto exit_device_put;
4285 goto exit_unregister;
4291 platform_device_put(pdev[i]);
4292 exit_device_unregister:
4295 platform_device_unregister(pdev[i]);
4298 platform_driver_unregister(&nct6775_driver);
4302 static void __exit sensors_nct6775_exit(void)
4306 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4308 platform_device_unregister(pdev[i]);
4310 platform_driver_unregister(&nct6775_driver);
4313 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
4314 MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D/NCT6792D driver");
4315 MODULE_LICENSE("GPL");
4317 module_init(sensors_nct6775_init);
4318 module_exit(sensors_nct6775_exit);