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) 2005-2011 Jean Delvare <khali@linux-fr.org>
9 * Copyright (C) 2006 Yuan Mu (Winbond),
10 * Rudolf Marek <r.marek@assembler.cz>
11 * David Hubbard <david.c.hubbard@gmail.com>
12 * Daniel J Blueman <daniel.blueman@gmail.com>
13 * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
15 * Shamelessly ripped from the w83627hf driver
16 * Copyright (C) 2003 Mark Studebaker
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 * Supports the following chips:
35 * Chip #vin #fan #pwm #temp chip IDs man ID
36 * nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3
37 * nct6776f 9 5 3 9 0xc330 0xc1 0x5ca3
38 * nct6779d 15 5 5 7 0xc560 0xc1 0x5ca3
41 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
43 #include <linux/module.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/jiffies.h>
47 #include <linux/platform_device.h>
48 #include <linux/hwmon.h>
49 #include <linux/hwmon-sysfs.h>
50 #include <linux/hwmon-vid.h>
51 #include <linux/err.h>
52 #include <linux/mutex.h>
53 #include <linux/acpi.h>
57 enum kinds { nct6775, nct6776, nct6779 };
59 /* used to set data->name = nct6775_device_names[data->sio_kind] */
60 static const char * const nct6775_device_names[] = {
66 static unsigned short force_id;
67 module_param(force_id, ushort, 0);
68 MODULE_PARM_DESC(force_id, "Override the detected device ID");
70 static unsigned short fan_debounce;
71 module_param(fan_debounce, ushort, 0);
72 MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
74 #define DRVNAME "nct6775"
77 * Super-I/O constants and functions
80 #define NCT6775_LD_ACPI 0x0a
81 #define NCT6775_LD_HWM 0x0b
82 #define NCT6775_LD_VID 0x0d
84 #define SIO_REG_LDSEL 0x07 /* Logical device select */
85 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
86 #define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */
87 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
88 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
89 #define SIO_REG_VID_CTRL 0xF0 /* VID control */
90 #define SIO_REG_VID_DATA 0xF1 /* VID data */
92 #define SIO_NCT6775_ID 0xb470
93 #define SIO_NCT6776_ID 0xc330
94 #define SIO_NCT6779_ID 0xc560
95 #define SIO_ID_MASK 0xFFF0
98 superio_outb(int ioreg, int reg, int val)
101 outb(val, ioreg + 1);
105 superio_inb(int ioreg, int reg)
108 return inb(ioreg + 1);
112 superio_select(int ioreg, int ld)
114 outb(SIO_REG_LDSEL, ioreg);
119 superio_enter(int ioreg)
126 superio_exit(int ioreg)
130 outb(0x02, ioreg + 1);
137 #define IOREGION_ALIGNMENT (~7)
138 #define IOREGION_OFFSET 5
139 #define IOREGION_LENGTH 2
140 #define ADDR_REG_OFFSET 0
141 #define DATA_REG_OFFSET 1
143 #define NCT6775_REG_BANK 0x4E
144 #define NCT6775_REG_CONFIG 0x40
147 * Not currently used:
148 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
149 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
150 * REG_MAN_ID is at port 0x4f
151 * REG_CHIP_ID is at port 0x58
154 static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
156 /* Voltage min/max registers for nr=7..14 are in bank 5 */
158 static const u16 NCT6775_REG_IN_MAX[] = {
159 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556 };
160 static const u16 NCT6775_REG_IN_MIN[] = {
161 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557 };
162 static const u16 NCT6775_REG_IN[] = {
163 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
166 static const u16 NCT6779_REG_IN[] = {
167 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
168 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e
171 #define NCT6775_REG_VBAT 0x5D
173 #define NCT6775_REG_FANDIV1 0x506
174 #define NCT6775_REG_FANDIV2 0x507
176 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
178 static const u16 NCT6775_REG_ALARM[6] = { 0x459, 0x45A, 0x45B };
179 static const u16 NCT6779_REG_ALARM[6] = { 0x459, 0x45A, 0x45B, 0x568 };
181 #define NCT6775_REG_CASEOPEN 0x42
183 static const u8 NCT6775_CASEOPEN_MASK[] = { 0x10, 0x00 };
184 static const u8 NCT6776_CASEOPEN_MASK[] = { 0x10, 0x40 };
186 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
187 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
189 /* DC or PWM output fan configuration */
190 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
191 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
193 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
194 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
196 /* Advanced Fan control, some values are common for all fans */
198 static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
199 static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
200 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
201 0x103, 0x203, 0x303, 0x803, 0x903 };
202 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
203 0x104, 0x204, 0x304, 0x804, 0x904 };
204 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
205 0x105, 0x205, 0x305, 0x805, 0x905 };
206 static const u16 NCT6775_REG_FAN_START_OUTPUT[]
207 = { 0x106, 0x206, 0x306, 0x806, 0x906 };
208 static const u16 NCT6775_REG_FAN_STOP_TIME[]
209 = { 0x107, 0x207, 0x307, 0x807, 0x907 };
210 static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
211 static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
213 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
215 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642};
217 static const u16 NCT6779_REG_TOLERANCE_H[]
218 = { 0x10c, 0x20c, 0x30c, 0x40c, 0x50c };
220 static const u16 NCT6779_REG_FAN[] = { 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8 };
222 static const u16 NCT6775_REG_TEMP[11]
223 = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d, 0x73, 0x75, 0x77 };
224 static const u16 NCT6775_REG_TEMP_CONFIG[11]
225 = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
226 static const u16 NCT6775_REG_TEMP_HYST[11]
227 = { 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
228 static const u16 NCT6775_REG_TEMP_OVER[11]
229 = { 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
230 static const u16 NCT6775_REG_TEMP_SOURCE[11]
231 = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626, 0x100, 0x200, 0x300,
233 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
235 static const u16 NCT6776_REG_TEMP_CONFIG[11]
236 = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
238 static const u16 NCT6779_REG_TEMP[11]
239 = { 0x27, 0x150, 0, 0, 0, 0, 0x73, 0x75, 0x77, 0x79, 0x7b };
241 static const u16 NCT6779_REG_TEMP_SOURCE_2[11]
242 = { 0, 0, 0, 0, 0, 0, 0x139, 0x239, 0x339, 0x839, 0x939 };
244 static const u16 NCT6775_REG_AUTO_TEMP[]
245 = { 0x121, 0x221, 0x321, 0x821, 0x921 };
246 static const u16 NCT6775_REG_AUTO_PWM[]
247 = { 0x127, 0x227, 0x327, 0x827, 0x927 };
249 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
250 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
252 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
254 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
255 0x135, 0x235, 0x335, 0x835, 0x935 };
256 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
257 0x138, 0x238, 0x338, 0x838, 0x938 };
259 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
260 0x136, 0x236, 0x336, 0x836, 0x936 };
261 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
262 0x137, 0x237, 0x337, 0x837, 0x937 };
264 static const char *const nct6775_temp_label[] = {
278 "PCH_CHIP_CPU_MAX_TEMP",
288 static const char *const nct6776_temp_label[] = {
303 "PCH_CHIP_CPU_MAX_TEMP",
314 static const char *const nct6779_temp_label[] = {
333 "PCH_CHIP_CPU_MAX_TEMP",
344 #define NUM_REG_TEMP ARRAY_SIZE(NCT6775_REG_TEMP)
346 static inline int reg_to_pwm_enable(int pwm, int mode)
348 if (mode == 0 && pwm == 255)
350 if (mode == 3) /* SmartFan III */
351 return 2; /* convert to thermal cruise */
354 return 4; /* SmartFan IV */
357 static inline int pwm_enable_to_reg(int mode)
370 /* 1 is DC mode, output in ms */
371 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
373 return mode ? 400 * reg : 100 * reg;
376 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
378 return SENSORS_LIMIT((mode ? (msec + 200) / 400 :
379 (msec + 50) / 100), 1, 255);
382 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
384 if (reg == 0 || reg == 255)
386 return 1350000U / (reg << divreg);
389 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
391 if ((reg & 0xff1f) == 0xff1f)
394 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
399 return 1350000U / reg;
402 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
404 if (reg == 0 || reg == 0xffff)
408 * Even though the registers are 16 bit wide, the fan divisor
411 return 1350000U / (reg << divreg);
414 static inline unsigned int
421 * Some of the voltage inputs have internal scaling, the tables below
422 * contain 8 (the ADC LSB in mV) * scaling factor * 100
424 static const u16 scale_in[15] = {
425 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
429 static inline long in_from_reg(u8 reg, u8 nr)
431 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
434 static inline u8 in_to_reg(u32 val, u8 nr)
436 return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
441 * Data structures and manipulation thereof
444 struct nct6775_data {
445 int addr; /* IO base of hw monitor block */
449 struct device *hwmon_dev;
452 u16 reg_temp[3][NUM_REG_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
453 u16 reg_temp_config[NUM_REG_TEMP];
454 u8 temp_src[2][NUM_REG_TEMP];
455 const char * const *temp_label;
458 const u16 *REG_IN_MINMAX[2];
460 const u16 *REG_TARGET;
462 const u16 *REG_FAN_MODE;
463 const u16 *REG_FAN_MIN;
464 const u16 *REG_FAN_TIME[3];
466 const u8 *REG_PWM_MODE;
467 const u8 *PWM_MODE_MASK;
469 const u16 *REG_PWM[3];
470 const u16 *REG_PWM_READ;
472 const u16 *REG_AUTO_TEMP;
473 const u16 *REG_AUTO_PWM;
475 const u16 *REG_CRITICAL_TEMP;
476 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
478 const u16 *REG_TEMP_SOURCE;
479 const u16 *REG_TEMP_SOURCE_2;
481 const u16 *REG_TEMP_OFFSET;
483 const u16 *REG_ALARM;
486 const u8 *CASEOPEN_MASK;
488 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
489 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
491 struct mutex update_lock;
492 char valid; /* !=0 if following fields are valid */
493 unsigned long last_updated; /* In jiffies */
495 /* Register values */
496 u8 bank; /* current register bank */
497 u8 in_num; /* number of in inputs we have */
498 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
503 u8 has_fan; /* some fan inputs can be disabled */
504 u8 has_fan_min; /* some fans don't have min register */
508 s16 temp[3][11]; /* 0=temp, 1=temp_over, 2=temp_hyst */
512 u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */
513 u8 pwm_enable[5]; /* 0->off
515 * 2->thermal cruise mode (also called SmartFan I)
516 * 3->fan speed cruise mode
517 * 4->enhanced variable thermal cruise (also called
520 u8 pwm_num; /* number of pwm */
521 u8 pwm[3][5]; /* [0]=pwm, [1]=fan_start_output, [2]=fan_stop_output */
525 u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
527 /* Automatic fan speed control registers */
536 u16 have_temp_offset;
540 struct nct6775_sio_data {
545 static bool is_word_sized(struct nct6775_data *data, u16 reg)
547 switch (data->kind) {
550 return (((reg & 0xff00) == 0x100 ||
551 (reg & 0xff00) == 0x200) &&
552 ((reg & 0x00ff) == 0x50 ||
553 (reg & 0x00ff) == 0x53 ||
554 (reg & 0x00ff) == 0x55)) ||
555 (reg & 0xfff0) == 0x630 ||
556 reg == 0x640 || reg == 0x642 ||
557 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
558 reg == 0x73 || reg == 0x75 || reg == 0x77;
560 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
561 ((reg & 0xfff0) == 0x4c0 && (reg & 0x000f) < 0x09) ||
562 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
563 reg == 0x640 || reg == 0x642 ||
564 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
571 * On older chips, only registers 0x50-0x5f are banked.
572 * On more recent chips, all registers are banked.
573 * Assume that is the case and set the bank number for each access.
574 * Cache the bank number so it only needs to be set if it changes.
576 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
579 if (data->bank != bank) {
580 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
581 outb_p(bank, data->addr + DATA_REG_OFFSET);
586 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
588 int res, word_sized = is_word_sized(data, reg);
590 mutex_lock(&data->lock);
592 nct6775_set_bank(data, reg);
593 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
594 res = inb_p(data->addr + DATA_REG_OFFSET);
596 outb_p((reg & 0xff) + 1,
597 data->addr + ADDR_REG_OFFSET);
598 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
601 mutex_unlock(&data->lock);
605 static int nct6775_write_value(struct nct6775_data *data, u16 reg,
608 int word_sized = is_word_sized(data, reg);
610 mutex_lock(&data->lock);
612 nct6775_set_bank(data, reg);
613 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
615 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
616 outb_p((reg & 0xff) + 1,
617 data->addr + ADDR_REG_OFFSET);
619 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
621 mutex_unlock(&data->lock);
625 /* We left-align 8-bit temperature values to make the code simpler */
626 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
630 res = nct6775_read_value(data, reg);
631 if (!is_word_sized(data, reg))
637 static int nct6775_write_temp(struct nct6775_data *data, u16 reg,
640 if (!is_word_sized(data, reg))
642 return nct6775_write_value(data, reg, value);
645 /* This function assumes that the caller holds data->update_lock */
646 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
652 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
653 | (data->fan_div[0] & 0x7);
654 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
657 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
658 | ((data->fan_div[1] << 4) & 0x70);
659 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
661 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
662 | (data->fan_div[2] & 0x7);
663 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
666 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
667 | ((data->fan_div[3] << 4) & 0x70);
668 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
673 static void nct6775_write_fan_div_common(struct device *dev,
674 struct nct6775_data *data, int nr)
676 if (data->kind == nct6775)
677 nct6775_write_fan_div(data, nr);
680 static void nct6775_update_fan_div(struct nct6775_data *data)
684 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
685 data->fan_div[0] = i & 0x7;
686 data->fan_div[1] = (i & 0x70) >> 4;
687 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
688 data->fan_div[2] = i & 0x7;
689 if (data->has_fan & (1<<3))
690 data->fan_div[3] = (i & 0x70) >> 4;
693 static void nct6775_update_fan_div_common(struct device *dev,
694 struct nct6775_data *data)
696 if (data->kind == nct6775)
697 nct6775_update_fan_div(data);
700 static void nct6775_update_pwm(struct device *dev)
702 struct nct6775_data *data = dev_get_drvdata(dev);
707 for (i = 0; i < data->pwm_num; i++) {
708 if (!(data->has_pwm & (1 << i)))
711 duty_is_dc = data->REG_PWM_MODE[i] &&
712 (nct6775_read_value(data, data->REG_PWM_MODE[i])
713 & data->PWM_MODE_MASK[i]);
714 data->pwm_mode[i] = duty_is_dc;
716 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
717 for (j = 0; j < 3; j++)
719 = nct6775_read_value(data, data->REG_PWM[j][i]);
721 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
722 (fanmodecfg >> 4) & 7);
724 data->tolerance[i][0] = fanmodecfg & 0x0f;
725 if (data->kind == nct6779) {
726 tol = nct6775_read_value(data,
727 NCT6779_REG_TOLERANCE_H[i]);
728 data->tolerance[i][0] |= (tol & 0x70) >> 1;
730 data->tolerance[i][1] =
731 nct6775_read_value(data,
732 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
736 static void nct6775_update_pwm_limits(struct device *dev)
738 struct nct6775_data *data = dev_get_drvdata(dev);
742 for (i = 0; i < data->pwm_num; i++) {
743 if (!(data->has_pwm & (1 << i)))
746 for (j = 0; j < 3; j++) {
747 data->fan_time[j][i] =
748 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
751 data->target_temp[i] =
752 nct6775_read_value(data, data->REG_TARGET[i]) &
753 (data->pwm_mode[i] ? 0xff : 0x7f);
754 for (j = 0; j < data->auto_pwm_num; j++) {
755 data->auto_pwm[i][j] =
756 nct6775_read_value(data,
757 NCT6775_AUTO_PWM(data, i, j));
758 data->auto_temp[i][j] =
759 nct6775_read_value(data,
760 NCT6775_AUTO_TEMP(data, i, j));
762 /* handle critical auto_pwm temperature data */
763 data->auto_temp[i][data->auto_pwm_num] =
764 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
766 switch (data->kind) {
768 reg = nct6775_read_value(data,
769 NCT6775_REG_CRITICAL_ENAB[i]);
770 data->auto_pwm[i][data->auto_pwm_num] =
771 (reg & 0x02) ? 0xff : 0x00;
774 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
777 reg = nct6775_read_value(data,
778 NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
780 data->auto_pwm[i][data->auto_pwm_num] =
781 nct6775_read_value(data,
782 NCT6779_REG_CRITICAL_PWM[i]);
784 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
790 static struct nct6775_data *nct6775_update_device(struct device *dev)
792 struct nct6775_data *data = dev_get_drvdata(dev);
795 mutex_lock(&data->update_lock);
797 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
799 /* Fan clock dividers */
800 nct6775_update_fan_div_common(dev, data);
802 /* Measured voltages and limits */
803 for (i = 0; i < data->in_num; i++) {
804 if (!(data->have_in & (1 << i)))
807 data->in[i][0] = nct6775_read_value(data,
809 data->in[i][1] = nct6775_read_value(data,
810 data->REG_IN_MINMAX[0][i]);
811 data->in[i][2] = nct6775_read_value(data,
812 data->REG_IN_MINMAX[1][i]);
815 /* Measured fan speeds and limits */
816 for (i = 0; i < 5; i++) {
819 if (!(data->has_fan & (1 << i)))
822 reg = nct6775_read_value(data, data->REG_FAN[i]);
823 data->rpm[i] = data->fan_from_reg(reg,
826 if (data->has_fan_min & (1 << i))
827 data->fan_min[i] = nct6775_read_value(data,
828 data->REG_FAN_MIN[i]);
831 * If we failed to measure the fan speed and clock
832 * divider can be increased, let's try that for next
835 if (data->has_fan_div
836 && (reg >= 0xff || (data->kind == nct6775
838 && data->fan_div[i] < 0x07) {
839 dev_dbg(dev, "Increasing fan%d "
840 "clock divider from %u to %u\n",
841 i + 1, div_from_reg(data->fan_div[i]),
842 div_from_reg(data->fan_div[i] + 1));
844 nct6775_write_fan_div_common(dev, data, i);
845 /* Preserve min limit if possible */
846 if ((data->has_fan_min & (1 << i))
847 && data->fan_min[i] >= 2
848 && data->fan_min[i] != 255)
849 nct6775_write_value(data,
850 data->REG_FAN_MIN[i],
851 (data->fan_min[i] /= 2));
855 nct6775_update_pwm(dev);
856 nct6775_update_pwm_limits(dev);
858 /* Measured temperatures and limits */
859 for (i = 0; i < NUM_REG_TEMP; i++) {
860 if (!(data->have_temp & (1 << i)))
862 for (j = 0; j < 3; j++) {
863 if (data->reg_temp[j][i])
865 = nct6775_read_temp(data,
866 data->reg_temp[j][i]);
868 if (!(data->have_temp_offset & (1 << i)))
871 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
875 for (i = 0; i < 6; i++) {
877 if (!data->REG_ALARM[i])
879 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
880 data->alarms |= (((u64)alarm) << (i << 3));
883 data->caseopen = nct6775_read_value(data, data->REG_CASEOPEN);
885 data->last_updated = jiffies;
889 mutex_unlock(&data->update_lock);
894 * Sysfs callback functions
897 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
899 struct nct6775_data *data = nct6775_update_device(dev);
900 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
902 int index = sattr->index;
903 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
907 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
910 struct nct6775_data *data = dev_get_drvdata(dev);
911 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
913 int index = sattr->index;
915 int err = kstrtoul(buf, 10, &val);
918 mutex_lock(&data->update_lock);
919 data->in[nr][index] = in_to_reg(val, nr);
920 nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr],
921 data->in[nr][index]);
922 mutex_unlock(&data->update_lock);
926 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
929 struct nct6775_data *data = nct6775_update_device(dev);
930 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
931 int nr = sensor_attr->index;
932 return sprintf(buf, "%u\n",
933 (unsigned int)((data->alarms >> nr) & 0x01));
936 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
937 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
938 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
939 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0);
940 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0);
941 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0);
942 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0);
943 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0);
944 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0);
945 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0);
946 static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0);
947 static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0);
948 static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0);
949 static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0);
950 static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0);
952 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
953 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
954 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
955 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
956 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
957 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21);
958 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20);
959 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
960 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
961 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 24);
962 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
963 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 26);
964 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 27);
965 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 28);
966 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 29);
968 static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg,
970 static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg,
972 static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg,
974 static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg,
976 static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg,
978 static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg,
980 static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg,
982 static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg,
984 static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg,
986 static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg,
988 static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg,
989 store_in_reg, 10, 1);
990 static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg,
991 store_in_reg, 11, 1);
992 static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg,
993 store_in_reg, 12, 1);
994 static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg,
995 store_in_reg, 13, 1);
996 static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg,
997 store_in_reg, 14, 1);
999 static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg,
1000 store_in_reg, 0, 2);
1001 static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg,
1002 store_in_reg, 1, 2);
1003 static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg,
1004 store_in_reg, 2, 2);
1005 static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg,
1006 store_in_reg, 3, 2);
1007 static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg,
1008 store_in_reg, 4, 2);
1009 static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg,
1010 store_in_reg, 5, 2);
1011 static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg,
1012 store_in_reg, 6, 2);
1013 static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg,
1014 store_in_reg, 7, 2);
1015 static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg,
1016 store_in_reg, 8, 2);
1017 static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg,
1018 store_in_reg, 9, 2);
1019 static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg,
1020 store_in_reg, 10, 2);
1021 static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg,
1022 store_in_reg, 11, 2);
1023 static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg,
1024 store_in_reg, 12, 2);
1025 static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg,
1026 store_in_reg, 13, 2);
1027 static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg,
1028 store_in_reg, 14, 2);
1030 static struct attribute *nct6775_attributes_in[15][5] = {
1032 &sensor_dev_attr_in0_input.dev_attr.attr,
1033 &sensor_dev_attr_in0_min.dev_attr.attr,
1034 &sensor_dev_attr_in0_max.dev_attr.attr,
1035 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1039 &sensor_dev_attr_in1_input.dev_attr.attr,
1040 &sensor_dev_attr_in1_min.dev_attr.attr,
1041 &sensor_dev_attr_in1_max.dev_attr.attr,
1042 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1046 &sensor_dev_attr_in2_input.dev_attr.attr,
1047 &sensor_dev_attr_in2_min.dev_attr.attr,
1048 &sensor_dev_attr_in2_max.dev_attr.attr,
1049 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1053 &sensor_dev_attr_in3_input.dev_attr.attr,
1054 &sensor_dev_attr_in3_min.dev_attr.attr,
1055 &sensor_dev_attr_in3_max.dev_attr.attr,
1056 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1060 &sensor_dev_attr_in4_input.dev_attr.attr,
1061 &sensor_dev_attr_in4_min.dev_attr.attr,
1062 &sensor_dev_attr_in4_max.dev_attr.attr,
1063 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1067 &sensor_dev_attr_in5_input.dev_attr.attr,
1068 &sensor_dev_attr_in5_min.dev_attr.attr,
1069 &sensor_dev_attr_in5_max.dev_attr.attr,
1070 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1074 &sensor_dev_attr_in6_input.dev_attr.attr,
1075 &sensor_dev_attr_in6_min.dev_attr.attr,
1076 &sensor_dev_attr_in6_max.dev_attr.attr,
1077 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1081 &sensor_dev_attr_in7_input.dev_attr.attr,
1082 &sensor_dev_attr_in7_min.dev_attr.attr,
1083 &sensor_dev_attr_in7_max.dev_attr.attr,
1084 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1088 &sensor_dev_attr_in8_input.dev_attr.attr,
1089 &sensor_dev_attr_in8_min.dev_attr.attr,
1090 &sensor_dev_attr_in8_max.dev_attr.attr,
1091 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1095 &sensor_dev_attr_in9_input.dev_attr.attr,
1096 &sensor_dev_attr_in9_min.dev_attr.attr,
1097 &sensor_dev_attr_in9_max.dev_attr.attr,
1098 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1102 &sensor_dev_attr_in10_input.dev_attr.attr,
1103 &sensor_dev_attr_in10_min.dev_attr.attr,
1104 &sensor_dev_attr_in10_max.dev_attr.attr,
1105 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1109 &sensor_dev_attr_in11_input.dev_attr.attr,
1110 &sensor_dev_attr_in11_min.dev_attr.attr,
1111 &sensor_dev_attr_in11_max.dev_attr.attr,
1112 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1116 &sensor_dev_attr_in12_input.dev_attr.attr,
1117 &sensor_dev_attr_in12_min.dev_attr.attr,
1118 &sensor_dev_attr_in12_max.dev_attr.attr,
1119 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1123 &sensor_dev_attr_in13_input.dev_attr.attr,
1124 &sensor_dev_attr_in13_min.dev_attr.attr,
1125 &sensor_dev_attr_in13_max.dev_attr.attr,
1126 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1130 &sensor_dev_attr_in14_input.dev_attr.attr,
1131 &sensor_dev_attr_in14_min.dev_attr.attr,
1132 &sensor_dev_attr_in14_max.dev_attr.attr,
1133 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1138 static const struct attribute_group nct6775_group_in[15] = {
1139 { .attrs = nct6775_attributes_in[0] },
1140 { .attrs = nct6775_attributes_in[1] },
1141 { .attrs = nct6775_attributes_in[2] },
1142 { .attrs = nct6775_attributes_in[3] },
1143 { .attrs = nct6775_attributes_in[4] },
1144 { .attrs = nct6775_attributes_in[5] },
1145 { .attrs = nct6775_attributes_in[6] },
1146 { .attrs = nct6775_attributes_in[7] },
1147 { .attrs = nct6775_attributes_in[8] },
1148 { .attrs = nct6775_attributes_in[9] },
1149 { .attrs = nct6775_attributes_in[10] },
1150 { .attrs = nct6775_attributes_in[11] },
1151 { .attrs = nct6775_attributes_in[12] },
1152 { .attrs = nct6775_attributes_in[13] },
1153 { .attrs = nct6775_attributes_in[14] },
1157 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1159 struct nct6775_data *data = nct6775_update_device(dev);
1160 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1161 int nr = sensor_attr->index;
1162 return sprintf(buf, "%d\n", data->rpm[nr]);
1166 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1168 struct nct6775_data *data = nct6775_update_device(dev);
1169 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1170 int nr = sensor_attr->index;
1171 return sprintf(buf, "%d\n",
1172 data->fan_from_reg_min(data->fan_min[nr],
1173 data->fan_div[nr]));
1177 show_fan_div(struct device *dev, struct device_attribute *attr,
1180 struct nct6775_data *data = nct6775_update_device(dev);
1181 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1182 int nr = sensor_attr->index;
1183 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1187 store_fan_min(struct device *dev, struct device_attribute *attr,
1188 const char *buf, size_t count)
1190 struct nct6775_data *data = dev_get_drvdata(dev);
1191 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1192 int nr = sensor_attr->index;
1198 err = kstrtoul(buf, 10, &val);
1202 mutex_lock(&data->update_lock);
1203 if (!data->has_fan_div) {
1205 * Only NCT6776F for now, so we know that this is a 13 bit
1213 val = 1350000U / val;
1214 val = (val & 0x1f) | ((val << 3) & 0xff00);
1216 data->fan_min[nr] = val;
1217 goto write_min; /* Leave fan divider alone */
1220 /* No min limit, alarm disabled */
1221 data->fan_min[nr] = 255;
1222 new_div = data->fan_div[nr]; /* No change */
1223 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1226 reg = 1350000U / val;
1227 if (reg >= 128 * 255) {
1229 * Speed below this value cannot possibly be represented,
1230 * even with the highest divider (128)
1232 data->fan_min[nr] = 254;
1233 new_div = 7; /* 128 == (1 << 7) */
1234 dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
1235 "minimum\n", nr + 1, val,
1236 data->fan_from_reg_min(254, 7));
1239 * Speed above this value cannot possibly be represented,
1240 * even with the lowest divider (1)
1242 data->fan_min[nr] = 1;
1243 new_div = 0; /* 1 == (1 << 0) */
1244 dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
1245 "maximum\n", nr + 1, val,
1246 data->fan_from_reg_min(1, 0));
1249 * Automatically pick the best divider, i.e. the one such
1250 * that the min limit will correspond to a register value
1251 * in the 96..192 range
1254 while (reg > 192 && new_div < 7) {
1258 data->fan_min[nr] = reg;
1263 * Write both the fan clock divider (if it changed) and the new
1264 * fan min (unconditionally)
1266 if (new_div != data->fan_div[nr]) {
1267 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1268 nr + 1, div_from_reg(data->fan_div[nr]),
1269 div_from_reg(new_div));
1270 data->fan_div[nr] = new_div;
1271 nct6775_write_fan_div_common(dev, data, nr);
1272 /* Give the chip time to sample a new speed value */
1273 data->last_updated = jiffies;
1276 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1278 mutex_unlock(&data->update_lock);
1283 static struct sensor_device_attribute sda_fan_input[] = {
1284 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
1285 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
1286 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
1287 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
1288 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
1291 static struct sensor_device_attribute sda_fan_alarm[] = {
1292 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
1293 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
1294 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
1295 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
1296 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
1299 static struct sensor_device_attribute sda_fan_min[] = {
1300 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
1302 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
1304 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
1306 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
1308 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
1312 static struct sensor_device_attribute sda_fan_div[] = {
1313 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
1314 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
1315 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
1316 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
1317 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
1321 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1323 struct nct6775_data *data = nct6775_update_device(dev);
1324 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1325 int nr = sensor_attr->index;
1326 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[0][nr]]);
1330 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1332 struct nct6775_data *data = nct6775_update_device(dev);
1333 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1335 int index = sattr->index;
1337 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1341 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1344 struct nct6775_data *data = dev_get_drvdata(dev);
1345 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1347 int index = sattr->index;
1351 err = kstrtol(buf, 10, &val);
1355 mutex_lock(&data->update_lock);
1356 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1357 nct6775_write_temp(data, data->reg_temp[index][nr],
1358 data->temp[index][nr]);
1359 mutex_unlock(&data->update_lock);
1364 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1366 struct nct6775_data *data = nct6775_update_device(dev);
1367 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1369 return sprintf(buf, "%d\n", data->temp_offset[sensor_attr->index] * 1000);
1373 store_temp_offset(struct device *dev, struct device_attribute *attr,
1374 const char *buf, size_t count)
1376 struct nct6775_data *data = dev_get_drvdata(dev);
1377 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1378 int nr = sensor_attr->index;
1382 err = kstrtol(buf, 10, &val);
1386 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1388 mutex_lock(&data->update_lock);
1389 data->temp_offset[nr] = val;
1390 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
1391 mutex_unlock(&data->update_lock);
1397 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
1399 struct nct6775_data *data = nct6775_update_device(dev);
1400 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1401 int nr = sensor_attr->index;
1402 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
1405 static struct sensor_device_attribute_2 sda_temp_input[] = {
1406 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
1407 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
1408 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0),
1409 SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0),
1410 SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0),
1411 SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0),
1412 SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0),
1413 SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0),
1414 SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0),
1415 SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0),
1416 SENSOR_ATTR_2(temp11_input, S_IRUGO, show_temp, NULL, 10, 0),
1419 static struct sensor_device_attribute sda_temp_label[] = {
1420 SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
1421 SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
1422 SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
1423 SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
1424 SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
1425 SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
1428 static struct sensor_device_attribute_2 sda_temp_max[] = {
1429 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1431 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1433 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1435 SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1437 SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1439 SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1443 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1444 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1446 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1448 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1450 SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1452 SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1454 SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1458 static struct sensor_device_attribute sda_temp_offset[] = {
1459 SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1460 store_temp_offset, 0),
1461 SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1462 store_temp_offset, 1),
1463 SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1464 store_temp_offset, 2),
1467 static struct sensor_device_attribute sda_temp_alarm[] = {
1468 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
1469 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
1470 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
1473 static struct sensor_device_attribute sda_temp_type[] = {
1474 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
1475 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
1476 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
1480 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
1482 struct nct6775_data *data = nct6775_update_device(dev);
1483 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1485 return sprintf(buf, "%d\n", !data->pwm_mode[sensor_attr->index]);
1489 store_pwm_mode(struct device *dev, struct device_attribute *attr,
1490 const char *buf, size_t count)
1492 struct nct6775_data *data = dev_get_drvdata(dev);
1493 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1494 int nr = sensor_attr->index;
1499 err = kstrtoul(buf, 10, &val);
1506 /* Setting DC mode is not supported for all chips/channels */
1507 if (data->REG_PWM_MODE[nr] == 0) {
1513 mutex_lock(&data->update_lock);
1514 data->pwm_mode[nr] = val;
1515 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
1516 reg &= ~data->PWM_MODE_MASK[nr];
1518 reg |= data->PWM_MODE_MASK[nr];
1519 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
1520 mutex_unlock(&data->update_lock);
1525 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1527 struct nct6775_data *data = nct6775_update_device(dev);
1528 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1530 return sprintf(buf, "%d\n", data->pwm_enable[sensor_attr->index]);
1534 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1536 struct nct6775_data *data = nct6775_update_device(dev);
1537 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1539 int index = sattr->index;
1543 * For automatic fan control modes, show current pwm readings.
1544 * Otherwise, show the configured value.
1546 if (index == 0 && data->pwm_enable[nr] > 1)
1547 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
1549 pwm = data->pwm[index][nr];
1551 return sprintf(buf, "%d\n", pwm);
1555 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
1558 struct nct6775_data *data = dev_get_drvdata(dev);
1559 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1561 int index = sattr->index;
1565 err = kstrtoul(buf, 10, &val);
1568 if (val > 255 || (index && val == 0))
1571 mutex_lock(&data->update_lock);
1572 data->pwm[index][nr] = val;
1573 nct6775_write_value(data, data->REG_PWM[index][nr], val);
1574 mutex_unlock(&data->update_lock);
1578 /* Returns 0 if OK, -EINVAL otherwise */
1579 static int check_trip_points(struct nct6775_data *data, int nr)
1583 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1584 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
1587 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1588 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
1591 /* validate critical temperature and pwm if enabled (pwm > 0) */
1592 if (data->auto_pwm[nr][data->auto_pwm_num]) {
1593 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
1594 data->auto_temp[nr][data->auto_pwm_num] ||
1595 data->auto_pwm[nr][data->auto_pwm_num - 1] >
1596 data->auto_pwm[nr][data->auto_pwm_num])
1603 store_pwm_enable(struct device *dev, struct device_attribute *attr,
1604 const char *buf, size_t count)
1606 struct nct6775_data *data = dev_get_drvdata(dev);
1607 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1608 int nr = sensor_attr->index;
1613 err = kstrtoul(buf, 10, &val);
1620 if (val == 4 && check_trip_points(data, nr)) {
1621 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
1622 dev_err(dev, "Adjust trip points and try again\n");
1626 mutex_lock(&data->update_lock);
1627 data->pwm_enable[nr] = val;
1630 * turn off pwm control: select manual mode, set pwm to maximum
1632 data->pwm[0][nr] = 255;
1633 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
1635 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1637 reg |= (pwm_enable_to_reg(val) << 4);
1638 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1639 mutex_unlock(&data->update_lock);
1644 show_pwm_temp_src(struct device *dev, struct device_attribute *attr, char *buf)
1646 struct nct6775_data *data = nct6775_update_device(dev);
1647 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1649 return sprintf(buf, "%d\n", data->temp_src[sattr->index][sattr->nr]);
1653 store_pwm_temp_src(struct device *dev, struct device_attribute *attr,
1654 const char *buf, size_t count)
1656 struct nct6775_data *data = nct6775_update_device(dev);
1657 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1659 int index = sattr->index;
1663 static const int max_src[] = {
1664 ARRAY_SIZE(nct6775_temp_label),
1665 ARRAY_SIZE(nct6776_temp_label),
1666 ARRAY_SIZE(nct6779_temp_label)
1669 err = kstrtoul(buf, 10, &val);
1672 if ((!index && val == 0) || val >= max_src[data->kind])
1675 if (!strlen(data->temp_label[val]))
1678 mutex_lock(&data->update_lock);
1679 data->temp_src[index][nr] = val;
1681 reg = nct6775_read_value(data, data->REG_TEMP_SOURCE[nr]);
1684 nct6775_write_value(data, data->REG_TEMP_SOURCE[nr], reg);
1686 reg = nct6775_read_value(data, data->REG_TEMP_SOURCE_2[nr]);
1689 reg |= (val | 0x80);
1690 nct6775_write_value(data, data->REG_TEMP_SOURCE_2[nr], reg);
1692 mutex_unlock(&data->update_lock);
1698 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
1700 struct nct6775_data *data = nct6775_update_device(dev);
1701 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1703 return sprintf(buf, "%d\n",
1704 data->target_temp[sensor_attr->index] * 1000);
1708 store_target_temp(struct device *dev, struct device_attribute *attr,
1709 const char *buf, size_t count)
1711 struct nct6775_data *data = dev_get_drvdata(dev);
1712 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1713 int nr = sensor_attr->index;
1717 err = kstrtol(buf, 10, &val);
1721 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
1723 mutex_lock(&data->update_lock);
1724 data->target_temp[nr] = val;
1725 nct6775_write_value(data, data->REG_TARGET[nr], val);
1726 mutex_unlock(&data->update_lock);
1731 show_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1734 struct nct6775_data *data = nct6775_update_device(dev);
1735 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1737 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1738 int tolerance = data->tolerance[nr][point];
1739 int temp = data->auto_temp[nr][sattr->index];
1741 return sprintf(buf, "%d\n", (temp - tolerance) * 1000);
1745 store_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1746 const char *buf, size_t count)
1748 struct nct6775_data *data = dev_get_drvdata(dev);
1749 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1751 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1755 int maxlimit[2][3] = { { 15, 7, 63 }, { 15, 7, 7 } };
1756 int mask[] = { 0x0f, 0x07, 0x07 };
1759 err = kstrtol(buf, 10, &val);
1763 temp = data->auto_temp[nr][sattr->index];
1764 val = temp - DIV_ROUND_CLOSEST(val, 1000);
1766 /* Limit tolerance as needed */
1767 val = SENSORS_LIMIT(val, 0, maxlimit[point][data->kind]);
1769 mutex_lock(&data->update_lock);
1771 nct6775_write_value(data,
1772 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
1775 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1776 reg = (reg & ~mask[nr]) | (val & mask[nr]);
1777 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1778 if (data->kind == nct6779) {
1779 reg = nct6775_read_value(data,
1780 NCT6779_REG_TOLERANCE_H[nr]);
1781 reg = (reg & 0x70) | ((val & 0x38) << 1);
1782 nct6775_write_value(data,
1783 NCT6779_REG_TOLERANCE_H[nr], reg);
1787 data->tolerance[nr][point] = val;
1788 mutex_unlock(&data->update_lock);
1792 static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
1793 static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
1794 static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
1795 static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0);
1796 static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0);
1798 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1800 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1802 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1804 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1806 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1809 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1810 store_pwm_enable, 0);
1811 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1812 store_pwm_enable, 1);
1813 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1814 store_pwm_enable, 2);
1815 static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1816 store_pwm_enable, 3);
1817 static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1818 store_pwm_enable, 4);
1820 static SENSOR_DEVICE_ATTR_2(pwm1_temp_src1, S_IWUSR | S_IRUGO,
1821 show_pwm_temp_src, store_pwm_temp_src, 6, 0);
1822 static SENSOR_DEVICE_ATTR_2(pwm2_temp_src1, S_IWUSR | S_IRUGO,
1823 show_pwm_temp_src, store_pwm_temp_src, 7, 0);
1824 static SENSOR_DEVICE_ATTR_2(pwm3_temp_src1, S_IWUSR | S_IRUGO,
1825 show_pwm_temp_src, store_pwm_temp_src, 8, 0);
1826 static SENSOR_DEVICE_ATTR_2(pwm4_temp_src1, S_IWUSR | S_IRUGO,
1827 show_pwm_temp_src, store_pwm_temp_src, 9, 0);
1828 static SENSOR_DEVICE_ATTR_2(pwm5_temp_src1, S_IWUSR | S_IRUGO,
1829 show_pwm_temp_src, store_pwm_temp_src, 10, 0);
1831 static struct sensor_device_attribute_2 pwm_temp_src2[] = {
1832 SENSOR_ATTR_2(pwm1_temp_src2, S_IWUSR | S_IRUGO, show_pwm_temp_src,
1833 store_pwm_temp_src, 6, 1),
1834 SENSOR_ATTR_2(pwm2_temp_src2, S_IWUSR | S_IRUGO, show_pwm_temp_src,
1835 store_pwm_temp_src, 7, 1),
1836 SENSOR_ATTR_2(pwm3_temp_src2, S_IWUSR | S_IRUGO, show_pwm_temp_src,
1837 store_pwm_temp_src, 8, 1),
1838 SENSOR_ATTR_2(pwm4_temp_src2, S_IWUSR | S_IRUGO, show_pwm_temp_src,
1839 store_pwm_temp_src, 9, 1),
1840 SENSOR_ATTR_2(pwm5_temp_src2, S_IWUSR | S_IRUGO, show_pwm_temp_src,
1841 store_pwm_temp_src, 10, 1),
1844 static SENSOR_DEVICE_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1845 store_target_temp, 0);
1846 static SENSOR_DEVICE_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1847 store_target_temp, 1);
1848 static SENSOR_DEVICE_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1849 store_target_temp, 2);
1850 static SENSOR_DEVICE_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1851 store_target_temp, 3);
1852 static SENSOR_DEVICE_ATTR(pwm5_target, S_IWUSR | S_IRUGO, show_target_temp,
1853 store_target_temp, 4);
1855 /* Smart Fan registers */
1858 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
1860 struct nct6775_data *data = nct6775_update_device(dev);
1861 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1863 int index = sattr->index;
1865 return sprintf(buf, "%d\n",
1866 step_time_from_reg(data->fan_time[index][nr],
1867 data->pwm_mode[nr]));
1871 store_fan_time(struct device *dev, struct device_attribute *attr,
1872 const char *buf, size_t count)
1874 struct nct6775_data *data = dev_get_drvdata(dev);
1875 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1877 int index = sattr->index;
1881 err = kstrtoul(buf, 10, &val);
1885 val = step_time_to_reg(val, data->pwm_mode[nr]);
1886 mutex_lock(&data->update_lock);
1887 data->fan_time[index][nr] = val;
1888 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
1889 mutex_unlock(&data->update_lock);
1893 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
1896 struct nct6775_data *data = dev_get_drvdata(dev);
1898 return sprintf(buf, "%s\n", data->name);
1900 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1902 static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
1903 store_fan_time, 0, 0);
1904 static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
1905 store_fan_time, 1, 0);
1906 static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
1907 store_fan_time, 2, 0);
1908 static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
1909 store_fan_time, 3, 0);
1910 static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
1911 store_fan_time, 4, 0);
1913 static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
1914 store_fan_time, 0, 1);
1915 static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
1916 store_fan_time, 1, 1);
1917 static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
1918 store_fan_time, 2, 1);
1919 static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
1920 store_fan_time, 3, 1);
1921 static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
1922 store_fan_time, 4, 1);
1924 static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
1925 show_fan_time, store_fan_time, 0, 2);
1926 static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
1927 show_fan_time, store_fan_time, 1, 2);
1928 static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
1929 show_fan_time, store_fan_time, 2, 2);
1930 static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
1931 show_fan_time, store_fan_time, 3, 2);
1932 static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
1933 show_fan_time, store_fan_time, 4, 2);
1935 static SENSOR_DEVICE_ATTR_2(pwm1_start_output, S_IWUSR | S_IRUGO, show_pwm,
1937 static SENSOR_DEVICE_ATTR_2(pwm2_start_output, S_IWUSR | S_IRUGO, show_pwm,
1939 static SENSOR_DEVICE_ATTR_2(pwm3_start_output, S_IWUSR | S_IRUGO, show_pwm,
1941 static SENSOR_DEVICE_ATTR_2(pwm4_start_output, S_IWUSR | S_IRUGO, show_pwm,
1943 static SENSOR_DEVICE_ATTR_2(pwm5_start_output, S_IWUSR | S_IRUGO, show_pwm,
1946 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output, S_IWUSR | S_IRUGO, show_pwm,
1948 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output, S_IWUSR | S_IRUGO, show_pwm,
1950 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output, S_IWUSR | S_IRUGO, show_pwm,
1952 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output, S_IWUSR | S_IRUGO, show_pwm,
1954 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output, S_IWUSR | S_IRUGO, show_pwm,
1957 static struct attribute *nct6775_attributes_pwm[5][11] = {
1959 &sensor_dev_attr_pwm1.dev_attr.attr,
1960 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1961 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1962 &sensor_dev_attr_pwm1_temp_src1.dev_attr.attr,
1963 &sensor_dev_attr_pwm1_target.dev_attr.attr,
1964 &sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
1965 &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
1966 &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
1967 &sensor_dev_attr_pwm1_start_output.dev_attr.attr,
1968 &sensor_dev_attr_pwm1_stop_output.dev_attr.attr,
1972 &sensor_dev_attr_pwm2.dev_attr.attr,
1973 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1974 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1975 &sensor_dev_attr_pwm2_temp_src1.dev_attr.attr,
1976 &sensor_dev_attr_pwm2_target.dev_attr.attr,
1977 &sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
1978 &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
1979 &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
1980 &sensor_dev_attr_pwm2_start_output.dev_attr.attr,
1981 &sensor_dev_attr_pwm2_stop_output.dev_attr.attr,
1985 &sensor_dev_attr_pwm3.dev_attr.attr,
1986 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1987 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1988 &sensor_dev_attr_pwm3_temp_src1.dev_attr.attr,
1989 &sensor_dev_attr_pwm3_target.dev_attr.attr,
1990 &sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
1991 &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
1992 &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
1993 &sensor_dev_attr_pwm3_start_output.dev_attr.attr,
1994 &sensor_dev_attr_pwm3_stop_output.dev_attr.attr,
1998 &sensor_dev_attr_pwm4.dev_attr.attr,
1999 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
2000 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
2001 &sensor_dev_attr_pwm4_temp_src1.dev_attr.attr,
2002 &sensor_dev_attr_pwm4_target.dev_attr.attr,
2003 &sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
2004 &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
2005 &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
2006 &sensor_dev_attr_pwm4_start_output.dev_attr.attr,
2007 &sensor_dev_attr_pwm4_stop_output.dev_attr.attr,
2011 &sensor_dev_attr_pwm5.dev_attr.attr,
2012 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
2013 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
2014 &sensor_dev_attr_pwm5_temp_src1.dev_attr.attr,
2015 &sensor_dev_attr_pwm5_target.dev_attr.attr,
2016 &sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
2017 &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
2018 &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
2019 &sensor_dev_attr_pwm5_start_output.dev_attr.attr,
2020 &sensor_dev_attr_pwm5_stop_output.dev_attr.attr,
2025 static const struct attribute_group nct6775_group_pwm[5] = {
2026 { .attrs = nct6775_attributes_pwm[0] },
2027 { .attrs = nct6775_attributes_pwm[1] },
2028 { .attrs = nct6775_attributes_pwm[2] },
2029 { .attrs = nct6775_attributes_pwm[3] },
2030 { .attrs = nct6775_attributes_pwm[4] },
2033 static ssize_t show_auto_pwm(struct device *dev, struct device_attribute *attr,
2036 struct nct6775_data *data = nct6775_update_device(dev);
2037 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2039 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2042 static ssize_t store_auto_pwm(struct device *dev, struct device_attribute *attr,
2043 const char *buf, size_t count)
2045 struct nct6775_data *data = dev_get_drvdata(dev);
2046 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2048 int point = sattr->index;
2053 err = kstrtoul(buf, 10, &val);
2059 if (point == data->auto_pwm_num) {
2060 if (data->kind != nct6775 && !val)
2062 if (data->kind != nct6779 && val)
2066 mutex_lock(&data->update_lock);
2067 data->auto_pwm[nr][point] = val;
2068 if (point < data->auto_pwm_num) {
2069 nct6775_write_value(data,
2070 NCT6775_AUTO_PWM(data, nr, point),
2071 data->auto_pwm[nr][point]);
2073 switch (data->kind) {
2075 /* disable if needed (pwm == 0) */
2076 reg = nct6775_read_value(data,
2077 NCT6775_REG_CRITICAL_ENAB[nr]);
2082 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2086 break; /* always enabled, nothing to do */
2088 nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
2090 reg = nct6775_read_value(data,
2091 NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
2096 nct6775_write_value(data,
2097 NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
2102 mutex_unlock(&data->update_lock);
2106 static ssize_t show_auto_temp(struct device *dev, struct device_attribute *attr,
2109 struct nct6775_data *data = nct6775_update_device(dev);
2110 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2112 int point = sattr->index;
2115 * We don't know for sure if the temperature is signed or unsigned.
2116 * Assume it is unsigned.
2118 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2121 static ssize_t store_auto_temp(struct device *dev,
2122 struct device_attribute *attr,
2123 const char *buf, size_t count)
2125 struct nct6775_data *data = dev_get_drvdata(dev);
2126 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2128 int point = sattr->index;
2132 err = kstrtoul(buf, 10, &val);
2138 mutex_lock(&data->update_lock);
2139 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2140 if (point < data->auto_pwm_num) {
2141 nct6775_write_value(data,
2142 NCT6775_AUTO_TEMP(data, nr, point),
2143 data->auto_temp[nr][point]);
2145 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2146 data->auto_temp[nr][point]);
2148 mutex_unlock(&data->update_lock);
2153 * The number of auto-point trip points is chip dependent.
2154 * Need to check support while generating/removing attribute files.
2156 static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
2157 SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
2158 show_auto_pwm, store_auto_pwm, 0, 0),
2159 SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
2160 show_auto_temp, store_auto_temp, 0, 0),
2161 SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2162 show_auto_temp_hyst, store_auto_temp_hyst, 0, 0),
2163 SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
2164 show_auto_pwm, store_auto_pwm, 0, 1),
2165 SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
2166 show_auto_temp, store_auto_temp, 0, 1),
2167 SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2168 show_auto_temp_hyst, store_auto_temp_hyst, 0, 1),
2169 SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
2170 show_auto_pwm, store_auto_pwm, 0, 2),
2171 SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
2172 show_auto_temp, store_auto_temp, 0, 2),
2173 SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2174 show_auto_temp_hyst, store_auto_temp_hyst, 0, 2),
2175 SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
2176 show_auto_pwm, store_auto_pwm, 0, 3),
2177 SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
2178 show_auto_temp, store_auto_temp, 0, 3),
2179 SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2180 show_auto_temp_hyst, store_auto_temp_hyst, 0, 3),
2181 SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
2182 show_auto_pwm, store_auto_pwm, 0, 4),
2183 SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
2184 show_auto_temp, store_auto_temp, 0, 4),
2185 SENSOR_ATTR_2(pwm1_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2186 show_auto_temp_hyst, store_auto_temp_hyst, 0, 4),
2187 SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
2188 show_auto_pwm, store_auto_pwm, 0, 5),
2189 SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
2190 show_auto_temp, store_auto_temp, 0, 5),
2191 SENSOR_ATTR_2(pwm1_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2192 show_auto_temp_hyst, store_auto_temp_hyst, 0, 5),
2193 SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
2194 show_auto_pwm, store_auto_pwm, 0, 6),
2195 SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
2196 show_auto_temp, store_auto_temp, 0, 6),
2197 SENSOR_ATTR_2(pwm1_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2198 show_auto_temp_hyst, store_auto_temp_hyst, 0, 6),
2200 SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
2201 show_auto_pwm, store_auto_pwm, 1, 0),
2202 SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
2203 show_auto_temp, store_auto_temp, 1, 0),
2204 SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2205 show_auto_temp_hyst, store_auto_temp_hyst, 1, 0),
2206 SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
2207 show_auto_pwm, store_auto_pwm, 1, 1),
2208 SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
2209 show_auto_temp, store_auto_temp, 1, 1),
2210 SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2211 show_auto_temp_hyst, store_auto_temp_hyst, 1, 1),
2212 SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
2213 show_auto_pwm, store_auto_pwm, 1, 2),
2214 SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
2215 show_auto_temp, store_auto_temp, 1, 2),
2216 SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2217 show_auto_temp_hyst, store_auto_temp_hyst, 1, 2),
2218 SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
2219 show_auto_pwm, store_auto_pwm, 1, 3),
2220 SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
2221 show_auto_temp, store_auto_temp, 1, 3),
2222 SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2223 show_auto_temp_hyst, store_auto_temp_hyst, 1, 3),
2224 SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
2225 show_auto_pwm, store_auto_pwm, 1, 4),
2226 SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
2227 show_auto_temp, store_auto_temp, 1, 4),
2228 SENSOR_ATTR_2(pwm2_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2229 show_auto_temp_hyst, store_auto_temp_hyst, 1, 4),
2230 SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
2231 show_auto_pwm, store_auto_pwm, 1, 5),
2232 SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
2233 show_auto_temp, store_auto_temp, 1, 5),
2234 SENSOR_ATTR_2(pwm2_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2235 show_auto_temp_hyst, store_auto_temp_hyst, 1, 5),
2236 SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
2237 show_auto_pwm, store_auto_pwm, 1, 6),
2238 SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
2239 show_auto_temp, store_auto_temp, 1, 6),
2240 SENSOR_ATTR_2(pwm2_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2241 show_auto_temp_hyst, store_auto_temp_hyst, 1, 6),
2243 SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
2244 show_auto_pwm, store_auto_pwm, 2, 0),
2245 SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
2246 show_auto_temp, store_auto_temp, 2, 0),
2247 SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2248 show_auto_temp_hyst, store_auto_temp_hyst, 2, 0),
2249 SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
2250 show_auto_pwm, store_auto_pwm, 2, 1),
2251 SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
2252 show_auto_temp, store_auto_temp, 2, 1),
2253 SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2254 show_auto_temp_hyst, store_auto_temp_hyst, 2, 1),
2255 SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
2256 show_auto_pwm, store_auto_pwm, 2, 2),
2257 SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
2258 show_auto_temp, store_auto_temp, 2, 2),
2259 SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2260 show_auto_temp_hyst, store_auto_temp_hyst, 2, 2),
2261 SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
2262 show_auto_pwm, store_auto_pwm, 2, 3),
2263 SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
2264 show_auto_temp, store_auto_temp, 2, 3),
2265 SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2266 show_auto_temp_hyst, store_auto_temp_hyst, 2, 3),
2267 SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
2268 show_auto_pwm, store_auto_pwm, 2, 4),
2269 SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
2270 show_auto_temp, store_auto_temp, 2, 4),
2271 SENSOR_ATTR_2(pwm3_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2272 show_auto_temp_hyst, store_auto_temp_hyst, 2, 4),
2273 SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
2274 show_auto_pwm, store_auto_pwm, 2, 5),
2275 SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
2276 show_auto_temp, store_auto_temp, 2, 5),
2277 SENSOR_ATTR_2(pwm3_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2278 show_auto_temp_hyst, store_auto_temp_hyst, 2, 5),
2279 SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
2280 show_auto_pwm, store_auto_pwm, 2, 6),
2281 SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
2282 show_auto_temp, store_auto_temp, 2, 6),
2283 SENSOR_ATTR_2(pwm3_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2284 show_auto_temp_hyst, store_auto_temp_hyst, 2, 6),
2286 SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
2287 show_auto_pwm, store_auto_pwm, 3, 0),
2288 SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
2289 show_auto_temp, store_auto_temp, 3, 0),
2290 SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2291 show_auto_temp_hyst, store_auto_temp_hyst, 3, 0),
2292 SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
2293 show_auto_pwm, store_auto_pwm, 3, 1),
2294 SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
2295 show_auto_temp, store_auto_temp, 3, 1),
2296 SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2297 show_auto_temp_hyst, store_auto_temp_hyst, 3, 1),
2298 SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
2299 show_auto_pwm, store_auto_pwm, 3, 2),
2300 SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
2301 show_auto_temp, store_auto_temp, 3, 2),
2302 SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2303 show_auto_temp_hyst, store_auto_temp_hyst, 3, 2),
2304 SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
2305 show_auto_pwm, store_auto_pwm, 3, 3),
2306 SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
2307 show_auto_temp, store_auto_temp, 3, 3),
2308 SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2309 show_auto_temp_hyst, store_auto_temp_hyst, 3, 3),
2310 SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
2311 show_auto_pwm, store_auto_pwm, 3, 4),
2312 SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
2313 show_auto_temp, store_auto_temp, 3, 4),
2314 SENSOR_ATTR_2(pwm4_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2315 show_auto_temp_hyst, store_auto_temp_hyst, 3, 4),
2316 SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
2317 show_auto_pwm, store_auto_pwm, 3, 5),
2318 SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
2319 show_auto_temp, store_auto_temp, 3, 5),
2320 SENSOR_ATTR_2(pwm4_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2321 show_auto_temp_hyst, store_auto_temp_hyst, 3, 5),
2322 SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
2323 show_auto_pwm, store_auto_pwm, 3, 6),
2324 SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
2325 show_auto_temp, store_auto_temp, 3, 6),
2326 SENSOR_ATTR_2(pwm4_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2327 show_auto_temp_hyst, store_auto_temp_hyst, 3, 6),
2329 SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
2330 show_auto_pwm, store_auto_pwm, 4, 0),
2331 SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
2332 show_auto_temp, store_auto_temp, 4, 0),
2333 SENSOR_ATTR_2(pwm5_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2334 show_auto_temp_hyst, store_auto_temp_hyst, 4, 0),
2335 SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
2336 show_auto_pwm, store_auto_pwm, 4, 1),
2337 SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
2338 show_auto_temp, store_auto_temp, 4, 1),
2339 SENSOR_ATTR_2(pwm5_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2340 show_auto_temp_hyst, store_auto_temp_hyst, 4, 1),
2341 SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
2342 show_auto_pwm, store_auto_pwm, 4, 2),
2343 SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
2344 show_auto_temp, store_auto_temp, 4, 2),
2345 SENSOR_ATTR_2(pwm5_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2346 show_auto_temp_hyst, store_auto_temp_hyst, 4, 2),
2347 SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
2348 show_auto_pwm, store_auto_pwm, 4, 3),
2349 SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
2350 show_auto_temp, store_auto_temp, 4, 3),
2351 SENSOR_ATTR_2(pwm5_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2352 show_auto_temp_hyst, store_auto_temp_hyst, 4, 3),
2353 SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
2354 show_auto_pwm, store_auto_pwm, 4, 4),
2355 SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
2356 show_auto_temp, store_auto_temp, 4, 4),
2357 SENSOR_ATTR_2(pwm5_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2358 show_auto_temp_hyst, store_auto_temp_hyst, 4, 4),
2359 SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
2360 show_auto_pwm, store_auto_pwm, 4, 5),
2361 SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
2362 show_auto_temp, store_auto_temp, 4, 5),
2363 SENSOR_ATTR_2(pwm5_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2364 show_auto_temp_hyst, store_auto_temp_hyst, 4, 5),
2365 SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
2366 show_auto_pwm, store_auto_pwm, 4, 6),
2367 SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
2368 show_auto_temp, store_auto_temp, 4, 6),
2369 SENSOR_ATTR_2(pwm5_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2370 show_auto_temp_hyst, store_auto_temp_hyst, 4, 6),
2374 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
2376 struct nct6775_data *data = dev_get_drvdata(dev);
2377 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
2379 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
2382 /* Case open detection */
2385 show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
2387 struct nct6775_data *data = nct6775_update_device(dev);
2389 return sprintf(buf, "%d\n",
2390 !!(data->caseopen & to_sensor_dev_attr_2(attr)->index));
2394 clear_caseopen(struct device *dev, struct device_attribute *attr,
2395 const char *buf, size_t count)
2397 struct nct6775_data *data = dev_get_drvdata(dev);
2398 struct nct6775_sio_data *sio_data = dev->platform_data;
2399 int nr = to_sensor_dev_attr(attr)->index;
2403 if (kstrtoul(buf, 10, &val) || val != 0)
2406 mutex_lock(&data->update_lock);
2409 * Use CR registers to clear caseopen status.
2410 * The CR registers are the same for all chips, and not all chips
2411 * support clearing the caseopen status through "regular" registers.
2413 superio_enter(sio_data->sioreg);
2414 superio_select(sio_data->sioreg, NCT6775_LD_ACPI);
2415 reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
2416 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2417 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2418 superio_exit(sio_data->sioreg);
2420 data->valid = 0; /* Force cache refresh */
2422 mutex_unlock(&data->update_lock);
2427 static struct sensor_device_attribute sda_caseopen[] = {
2428 SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2430 SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2435 * Driver and device management
2438 static void nct6775_device_remove_files(struct device *dev)
2441 * some entries in the following arrays may not have been used in
2442 * device_create_file(), but device_remove_file() will ignore them
2445 struct nct6775_data *data = dev_get_drvdata(dev);
2447 for (i = 0; i < data->pwm_num; i++) {
2448 sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
2449 for (j = 0; j < ARRAY_SIZE(sda_auto_pwm_arrays); j++)
2450 device_remove_file(dev,
2451 &sda_auto_pwm_arrays[j].dev_attr);
2452 device_remove_file(dev, &pwm_temp_src2[i].dev_attr);
2455 for (i = 0; i < data->in_num; i++)
2456 sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
2458 for (i = 0; i < 5; i++) {
2459 device_remove_file(dev, &sda_fan_input[i].dev_attr);
2460 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
2461 device_remove_file(dev, &sda_fan_div[i].dev_attr);
2462 device_remove_file(dev, &sda_fan_min[i].dev_attr);
2464 for (i = 0; i < NUM_REG_TEMP; i++) {
2465 if (!(data->have_temp & (1 << i)))
2467 device_remove_file(dev, &sda_temp_input[i].dev_attr);
2470 device_remove_file(dev, &sda_temp_label[i].dev_attr);
2471 device_remove_file(dev, &sda_temp_max[i].dev_attr);
2472 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
2475 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
2476 device_remove_file(dev, &sda_temp_type[i].dev_attr);
2477 device_remove_file(dev, &sda_temp_offset[i].dev_attr);
2480 device_remove_file(dev, &sda_caseopen[0].dev_attr);
2481 device_remove_file(dev, &sda_caseopen[1].dev_attr);
2483 device_remove_file(dev, &dev_attr_name);
2484 device_remove_file(dev, &dev_attr_cpu0_vid);
2487 /* Get the monitoring functions started */
2488 static inline void __devinit nct6775_init_device(struct nct6775_data *data)
2493 /* Start monitoring if needed */
2494 tmp = nct6775_read_value(data, NCT6775_REG_CONFIG);
2496 nct6775_write_value(data, NCT6775_REG_CONFIG,
2499 /* Enable temperature sensors if needed */
2500 for (i = 0; i < NUM_REG_TEMP; i++) {
2501 if (!(data->have_temp & (1 << i)))
2503 if (!data->reg_temp_config[i])
2505 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
2507 nct6775_write_value(data, data->reg_temp_config[i],
2511 /* Enable VBAT monitoring if needed */
2512 tmp = nct6775_read_value(data, NCT6775_REG_VBAT);
2514 nct6775_write_value(data, NCT6775_REG_VBAT, tmp | 0x01);
2516 for (i = 0; i < 3; i++) {
2517 const char *label = NULL;
2519 if (data->temp_label)
2520 label = data->temp_label[data->temp_src[0][i]];
2522 /* Digital source overrides analog type */
2523 if (label && strncmp(label, "PECI", 4) == 0)
2524 data->temp_type[i] = 6;
2525 else if (label && strncmp(label, "AMD", 3) == 0)
2526 data->temp_type[i] = 5;
2527 else if ((tmp & (0x02 << i)))
2528 data->temp_type[i] = 1; /* diode */
2530 data->temp_type[i] = 4; /* thermistor */
2534 static void w82627ehf_swap_tempreg(struct nct6775_data *data,
2539 tmp = data->temp_src[0][r1];
2540 data->temp_src[0][r1] = data->temp_src[0][r2];
2541 data->temp_src[0][r2] = tmp;
2543 for (i = 0; i < 3; i++) {
2544 tmp = data->reg_temp[i][r1];
2545 data->reg_temp[i][r1] = data->reg_temp[i][r2];
2546 data->reg_temp[i][r2] = tmp;
2549 tmp = data->reg_temp_config[r1];
2550 data->reg_temp_config[r1] = data->reg_temp_config[r2];
2551 data->reg_temp_config[r2] = tmp;
2554 static void __devinit
2555 nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data,
2556 struct nct6775_data *data)
2559 bool fan3pin, fan3min, fan4pin, fan4min, fan5pin;
2560 bool pwm3pin, pwm4pin, pwm5pin;
2562 superio_enter(sio_data->sioreg);
2564 /* fan4 and fan5 share some pins with the GPIO and serial flash */
2565 if (data->kind == nct6775) {
2566 regval = superio_inb(sio_data->sioreg, 0x2c);
2568 fan3pin = regval & (1 << 6);
2570 pwm3pin = regval & (1 << 7);
2572 /* On NCT6775, fan4 shares pins with the fdc interface */
2573 fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80);
2578 } else if (data->kind == nct6776) {
2579 bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
2581 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
2582 regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
2587 fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
2592 fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01;
2597 fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02;
2604 } else { /* NCT6779D */
2605 regval = superio_inb(sio_data->sioreg, 0x1c);
2607 fan3pin = !(regval & (1 << 5));
2608 fan4pin = !(regval & (1 << 6));
2609 fan5pin = !(regval & (1 << 7));
2611 pwm3pin = !(regval & (1 << 0));
2612 pwm4pin = !(regval & (1 << 1));
2613 pwm5pin = !(regval & (1 << 2));
2619 superio_exit(sio_data->sioreg);
2621 data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */
2622 data->has_fan |= (fan3pin << 2);
2623 data->has_fan_min |= (fan3min << 2);
2625 data->has_fan |= (fan4pin << 3) | (fan5pin << 4);
2626 data->has_fan_min |= (fan4min << 3) | (fan5pin << 4);
2628 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4);
2631 static int __devinit nct6775_probe(struct platform_device *pdev)
2633 struct device *dev = &pdev->dev;
2634 struct nct6775_sio_data *sio_data = dev->platform_data;
2635 struct nct6775_data *data;
2636 struct resource *res;
2639 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
2641 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
2642 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
2644 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
2645 (unsigned long)res->start,
2646 (unsigned long)res->start + IOREGION_LENGTH - 1);
2650 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
2657 data->kind = sio_data->kind;
2658 data->addr = res->start;
2659 mutex_init(&data->lock);
2660 mutex_init(&data->update_lock);
2661 data->name = nct6775_device_names[data->kind];
2662 platform_set_drvdata(pdev, data);
2664 switch (data->kind) {
2667 data->have_in = 0x1ff;
2669 data->auto_pwm_num = 6;
2670 data->has_fan_div = true;
2672 data->fan_from_reg = fan_from_reg16;
2673 data->fan_from_reg_min = fan_from_reg8;
2675 data->REG_VIN = NCT6775_REG_IN;
2676 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
2677 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
2678 data->REG_TARGET = NCT6775_REG_TARGET;
2679 data->REG_FAN = NCT6775_REG_FAN;
2680 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
2681 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
2682 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
2683 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
2684 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
2685 data->REG_PWM[0] = NCT6775_REG_PWM;
2686 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
2687 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
2688 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
2689 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
2690 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
2691 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
2692 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
2693 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
2694 data->REG_CRITICAL_TEMP_TOLERANCE
2695 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
2696 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
2697 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
2698 data->REG_ALARM = NCT6775_REG_ALARM;
2699 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
2700 data->CASEOPEN_MASK = NCT6775_CASEOPEN_MASK;
2702 reg_temp = NCT6775_REG_TEMP;
2703 reg_temp_over = NCT6775_REG_TEMP_OVER;
2704 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
2705 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
2710 data->have_in = 0x1ff;
2712 data->auto_pwm_num = 4;
2713 data->has_fan_div = false;
2714 data->fan_from_reg = fan_from_reg13;
2715 data->fan_from_reg_min = fan_from_reg13;
2716 data->REG_VIN = NCT6775_REG_IN;
2717 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
2718 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
2719 data->REG_TARGET = NCT6775_REG_TARGET;
2720 data->REG_FAN = NCT6775_REG_FAN;
2721 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
2722 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
2723 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
2724 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
2725 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
2726 data->REG_PWM[0] = NCT6775_REG_PWM;
2727 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
2728 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
2729 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
2730 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
2731 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
2732 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
2733 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
2734 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
2735 data->REG_CRITICAL_TEMP_TOLERANCE
2736 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
2737 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
2738 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
2739 data->REG_ALARM = NCT6775_REG_ALARM;
2740 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
2741 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
2743 reg_temp = NCT6775_REG_TEMP;
2744 reg_temp_over = NCT6775_REG_TEMP_OVER;
2745 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
2746 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
2751 data->have_in = 0x7fff;
2753 data->auto_pwm_num = 4;
2754 data->has_fan_div = false;
2756 data->fan_from_reg = fan_from_reg13;
2757 data->fan_from_reg_min = fan_from_reg13;
2759 data->REG_VIN = NCT6779_REG_IN;
2760 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
2761 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
2762 data->REG_TARGET = NCT6775_REG_TARGET;
2763 data->REG_FAN = NCT6779_REG_FAN;
2764 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
2765 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
2766 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
2767 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
2768 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
2769 data->REG_PWM[0] = NCT6775_REG_PWM;
2770 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
2771 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
2772 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
2773 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
2774 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
2775 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
2776 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
2777 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
2778 data->REG_CRITICAL_TEMP_TOLERANCE
2779 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
2780 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
2781 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
2782 data->REG_TEMP_SOURCE_2 = NCT6779_REG_TEMP_SOURCE_2;
2783 data->REG_ALARM = NCT6779_REG_ALARM;
2784 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
2785 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
2787 reg_temp = NCT6779_REG_TEMP;
2788 reg_temp_over = NCT6775_REG_TEMP_OVER;
2789 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
2790 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
2798 /* Default to no temperature inputs, code below will adjust as needed */
2799 data->have_temp = 0;
2801 for (i = 0; i < NUM_REG_TEMP; i++) {
2802 if (reg_temp[i] == 0)
2805 data->reg_temp[0][i] = reg_temp[i];
2806 data->reg_temp[1][i] = reg_temp_over[i];
2807 data->reg_temp[2][i] = reg_temp_hyst[i];
2808 data->reg_temp_config[i] = reg_temp_config[i];
2810 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]);
2813 /* Always display temp6..10 (fan control sources) if enabled */
2814 if (src && (i > 5 || !(mask & (1 << src)))) {
2815 data->have_temp |= 1 << i;
2819 data->temp_src[0][i] = src;
2823 * Do some register swapping if index 0..2 don't
2824 * point to SYSTIN(1), CPUIN(2), and AUXIN(3).
2825 * Idea is to have the first three attributes
2826 * report SYSTIN, CPUIN, and AUXIN if possible
2827 * without overriding the basic system configuration.
2828 * Do this only for the first six temperature sources;
2829 * the remaining temperatures are fan control sources,
2830 * and we don't want to touch those.
2832 if (i > 0 && data->temp_src[0][0] != 1
2833 && data->temp_src[0][i] == 1)
2834 w82627ehf_swap_tempreg(data, 0, i);
2835 if (i > 1 && data->temp_src[0][1] != 2
2836 && data->temp_src[0][i] == 2)
2837 w82627ehf_swap_tempreg(data, 1, i);
2838 if (i > 2 && data->temp_src[0][2] != 3
2839 && data->temp_src[0][i] == 3)
2840 w82627ehf_swap_tempreg(data, 2, i);
2842 data->have_temp_offset = data->have_temp & 0x07;
2843 for (i = 0; i < 3; i++) {
2844 if (data->temp_src[0][i] > 3)
2845 data->have_temp_offset &= ~(1 << i);
2849 switch (data->kind) {
2851 data->temp_label = nct6775_temp_label;
2855 * On NCT6776, AUXTIN and VIN3 pins are shared.
2856 * Only way to detect it is to check if AUXTIN is used
2857 * as a temperature source, and if that source is
2860 * If that is the case, disable in6, which reports VIN3.
2861 * Otherwise disable temp3.
2863 if (data->temp_src[0][2] == 3) {
2866 if (data->reg_temp_config[2])
2867 reg = nct6775_read_value(data,
2868 data->reg_temp_config[2]);
2870 reg = 0; /* Assume AUXTIN is used */
2873 data->have_temp &= ~(1 << 2);
2875 data->have_in &= ~(1 << 6);
2877 data->temp_label = nct6776_temp_label;
2886 * Assume voltage is disabled if the respective temperature is
2887 * used as temperature source.
2889 for (i = 0; i < ARRAY_SIZE(NCT6779_REG_TEMP); i++) {
2890 if (!(data->have_temp & (1 << i)))
2892 if (data->temp_src[0][i] == 3) /* AUXTIN0 */
2893 data->have_in &= ~(1 << 6); /* no VIN4 */
2894 if (data->temp_src[0][i] == 4) /* AUXTIN1 */
2895 data->have_in &= ~(1 << 10); /* no VIN5 */
2896 if (data->temp_src[0][i] == 5) /* AUXTIN2 */
2897 data->have_in &= ~(1 << 11); /* no VIN6 */
2898 if (data->temp_src[0][i] == 6) /* AUXTIN0 */
2899 data->have_in &= ~(1 << 14); /* no VIN7 */
2901 if (NCT6779_REG_TEMP_SOURCE_2[i]) {
2902 src = nct6775_read_value(data,
2903 NCT6779_REG_TEMP_SOURCE_2[i]);
2904 data->temp_src[1][i] = src & 0x1f;
2907 data->temp_label = nct6779_temp_label;
2911 /* Initialize the chip */
2912 nct6775_init_device(data);
2914 data->vrm = vid_which_vrm();
2915 superio_enter(sio_data->sioreg);
2918 * We can get the VID input values directly at logical device D 0xe3.
2920 superio_select(sio_data->sioreg, NCT6775_LD_VID);
2921 data->vid = superio_inb(sio_data->sioreg, 0xe3);
2922 err = device_create_file(dev, &dev_attr_cpu0_vid);
2929 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
2930 tmp = superio_inb(sio_data->sioreg,
2931 NCT6775_REG_CR_FAN_DEBOUNCE);
2932 switch (data->kind) {
2941 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
2943 pr_info("Enabled fan debounce for chip %s\n", data->name);
2946 superio_exit(sio_data->sioreg);
2948 nct6775_check_fan_inputs(sio_data, data);
2950 /* Read fan clock dividers immediately */
2951 nct6775_update_fan_div_common(dev, data);
2953 /* Register sysfs hooks */
2954 for (i = 0; i < data->pwm_num; i++) {
2955 if (!(data->has_pwm & (1 << i)))
2957 err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
2960 if (data->REG_TEMP_SOURCE_2)
2961 device_create_file(dev, &pwm_temp_src2[i].dev_attr);
2963 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
2964 struct sensor_device_attribute_2 *attr =
2965 &sda_auto_pwm_arrays[i];
2967 if (!(data->has_pwm & (1 << attr->nr)))
2969 if (attr->index > data->auto_pwm_num)
2971 err = device_create_file(dev, &attr->dev_attr);
2976 for (i = 0; i < data->in_num; i++) {
2977 if (!(data->have_in & (1 << i)))
2979 err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]);
2984 for (i = 0; i < 5; i++) {
2985 if (data->has_fan & (1 << i)) {
2986 err = device_create_file(dev,
2987 &sda_fan_input[i].dev_attr);
2990 err = device_create_file(dev,
2991 &sda_fan_alarm[i].dev_attr);
2994 if (data->kind != nct6776 &&
2995 data->kind != nct6779) {
2996 err = device_create_file(dev,
2997 &sda_fan_div[i].dev_attr);
3001 if (data->has_fan_min & (1 << i)) {
3002 err = device_create_file(dev,
3003 &sda_fan_min[i].dev_attr);
3010 for (i = 0; i < NUM_REG_TEMP; i++) {
3011 if (!(data->have_temp & (1 << i)))
3013 err = device_create_file(dev, &sda_temp_input[i].dev_attr);
3018 if (data->temp_label) {
3019 err = device_create_file(dev,
3020 &sda_temp_label[i].dev_attr);
3024 if (data->reg_temp[1][i]) {
3025 err = device_create_file(dev,
3026 &sda_temp_max[i].dev_attr);
3030 if (data->reg_temp[2][i]) {
3031 err = device_create_file(dev,
3032 &sda_temp_max_hyst[i].dev_attr);
3038 err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
3041 err = device_create_file(dev, &sda_temp_type[i].dev_attr);
3044 if (data->have_temp_offset & (1 << i)) {
3045 err = device_create_file(dev,
3046 &sda_temp_offset[i].dev_attr);
3052 for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
3053 if (!data->CASEOPEN_MASK[i])
3055 err = device_create_file(dev, &sda_caseopen[i].dev_attr);
3060 err = device_create_file(dev, &dev_attr_name);
3064 data->hwmon_dev = hwmon_device_register(dev);
3065 if (IS_ERR(data->hwmon_dev)) {
3066 err = PTR_ERR(data->hwmon_dev);
3073 nct6775_device_remove_files(dev);
3075 release_region(res->start, IOREGION_LENGTH);
3080 static int __devexit nct6775_remove(struct platform_device *pdev)
3082 struct nct6775_data *data = platform_get_drvdata(pdev);
3084 hwmon_device_unregister(data->hwmon_dev);
3085 nct6775_device_remove_files(&pdev->dev);
3086 release_region(data->addr, IOREGION_LENGTH);
3091 static struct platform_driver nct6775_driver = {
3093 .owner = THIS_MODULE,
3096 .probe = nct6775_probe,
3097 .remove = __devexit_p(nct6775_remove),
3100 /* nct6775_find() looks for a '627 in the Super-I/O config space */
3101 static int __init nct6775_find(int sioaddr, unsigned short *addr,
3102 struct nct6775_sio_data *sio_data)
3104 static const char __initdata sio_name_NCT6775[] = "NCT6775F";
3105 static const char __initdata sio_name_NCT6776[] = "NCT6776F";
3106 static const char __initdata sio_name_NCT6779[] = "NCT6779F";
3109 const char *sio_name;
3111 superio_enter(sioaddr);
3116 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
3117 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
3118 switch (val & SIO_ID_MASK) {
3119 case SIO_NCT6775_ID:
3120 sio_data->kind = nct6775;
3121 sio_name = sio_name_NCT6775;
3123 case SIO_NCT6776_ID:
3124 sio_data->kind = nct6776;
3125 sio_name = sio_name_NCT6776;
3127 case SIO_NCT6779_ID:
3128 sio_data->kind = nct6779;
3129 sio_name = sio_name_NCT6779;
3133 pr_debug("unsupported chip ID: 0x%04x\n", val);
3134 superio_exit(sioaddr);
3138 /* We have a known chip, find the HWM I/O address */
3139 superio_select(sioaddr, NCT6775_LD_HWM);
3140 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
3141 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
3142 *addr = val & IOREGION_ALIGNMENT;
3144 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
3145 superio_exit(sioaddr);
3149 /* Activate logical device if needed */
3150 val = superio_inb(sioaddr, SIO_REG_ENABLE);
3151 if (!(val & 0x01)) {
3152 pr_warn("Forcibly enabling Super-I/O. "
3153 "Sensor is probably unusable.\n");
3154 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
3157 superio_exit(sioaddr);
3158 pr_info("Found %s chip at %#x\n", sio_name, *addr);
3159 sio_data->sioreg = sioaddr;
3165 * when Super-I/O functions move to a separate file, the Super-I/O
3166 * bus will manage the lifetime of the device and this module will only keep
3167 * track of the nct6775 driver. But since we platform_device_alloc(), we
3168 * must keep track of the device
3170 static struct platform_device *pdev;
3172 static int __init sensors_nct6775_init(void)
3175 unsigned short address;
3176 struct resource res;
3177 struct nct6775_sio_data sio_data;
3180 * initialize sio_data->kind and sio_data->sioreg.
3182 * when Super-I/O functions move to a separate file, the Super-I/O
3183 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
3184 * nct6775 hardware monitor, and call probe()
3186 if (nct6775_find(0x2e, &address, &sio_data) &&
3187 nct6775_find(0x4e, &address, &sio_data))
3190 err = platform_driver_register(&nct6775_driver);
3194 pdev = platform_device_alloc(DRVNAME, address);
3197 pr_err("Device allocation failed\n");
3198 goto exit_unregister;
3201 err = platform_device_add_data(pdev, &sio_data,
3202 sizeof(struct nct6775_sio_data));
3204 pr_err("Platform data allocation failed\n");
3205 goto exit_device_put;
3208 memset(&res, 0, sizeof(res));
3210 res.start = address + IOREGION_OFFSET;
3211 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
3212 res.flags = IORESOURCE_IO;
3214 err = acpi_check_resource_conflict(&res);
3216 goto exit_device_put;
3218 err = platform_device_add_resources(pdev, &res, 1);
3220 pr_err("Device resource addition failed (%d)\n", err);
3221 goto exit_device_put;
3224 /* platform_device_add calls probe() */
3225 err = platform_device_add(pdev);
3227 pr_err("Device addition failed (%d)\n", err);
3228 goto exit_device_put;
3234 platform_device_put(pdev);
3236 platform_driver_unregister(&nct6775_driver);
3241 static void __exit sensors_nct6775_exit(void)
3243 platform_device_unregister(pdev);
3244 platform_driver_unregister(&nct6775_driver);
3247 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
3248 MODULE_DESCRIPTION("NCT677x driver");
3249 MODULE_LICENSE("GPL");
3251 module_init(sensors_nct6775_init);
3252 module_exit(sensors_nct6775_exit);