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 6+3 0xb470 0xc1 0x5ca3
37 * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3
38 * nct6779d 15 5 5 2+5 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
172 #define NCT6775_REG_DIODE 0x5E
174 #define NCT6775_REG_FANDIV1 0x506
175 #define NCT6775_REG_FANDIV2 0x507
177 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
179 static const u16 NCT6775_REG_ALARM[6] = { 0x459, 0x45A, 0x45B };
180 static const u16 NCT6779_REG_ALARM[6] = { 0x459, 0x45A, 0x45B, 0x568 };
182 #define NCT6775_REG_CASEOPEN 0x42
184 static const u8 NCT6775_CASEOPEN_MASK[] = { 0x10, 0x00 };
185 static const u8 NCT6776_CASEOPEN_MASK[] = { 0x10, 0x40 };
187 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
188 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
190 /* DC or PWM output fan configuration */
191 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
192 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
194 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
195 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
197 /* Advanced Fan control, some values are common for all fans */
199 static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
200 static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
201 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
202 0x103, 0x203, 0x303, 0x803, 0x903 };
203 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
204 0x104, 0x204, 0x304, 0x804, 0x904 };
205 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
206 0x105, 0x205, 0x305, 0x805, 0x905 };
207 static const u16 NCT6775_REG_FAN_START_OUTPUT[]
208 = { 0x106, 0x206, 0x306, 0x806, 0x906 };
209 static const u16 NCT6775_REG_FAN_STOP_TIME[]
210 = { 0x107, 0x207, 0x307, 0x807, 0x907 };
211 static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
212 static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
214 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
216 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642};
218 static const u16 NCT6779_REG_TOLERANCE_H[]
219 = { 0x10c, 0x20c, 0x30c, 0x40c, 0x50c };
221 static const u16 NCT6779_REG_FAN[] = { 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8 };
223 static const u16 NCT6775_REG_TEMP[]
224 = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
225 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
226 static const u16 NCT6779_REG_TEMP_FIXED[]
227 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495};
229 static const u16 NCT6775_REG_TEMP_CONFIG[]
230 = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
231 static const u16 NCT6775_REG_TEMP_HYST[]
232 = { 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
233 static const u16 NCT6775_REG_TEMP_OVER[]
234 = { 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
236 static const u16 NCT6775_REG_TEMP_SOURCE[]
237 = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
239 static const u16 NCT6775_REG_TEMP_SEL[]
240 = { 0x100, 0x200, 0x300, 0x800, 0x900 };
242 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[]
243 = { 0x139, 0x239, 0x339, 0x839, 0x939 };
244 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[]
245 = { 0x13a, 0x23a, 0x33a, 0x83a, 0x93a };
246 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[]
247 = { 0x13b, 0x23b, 0x33b, 0x83b, 0x93b };
248 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[]
249 = { 0x13c, 0x23c, 0x33c, 0x83c, 0x93c };
250 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[]
251 = { 0x13d, 0x23d, 0x33d, 0x83d, 0x93d };
253 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[]
254 = { 0x13e, 0x23e, 0x33e, 0x83e, 0x93e };
256 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
258 static const u16 NCT6779_REG_TEMP_OFFSET[]
259 = { 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
261 static const u16 NCT6776_REG_TEMP_CONFIG[11]
262 = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
264 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
266 static const u16 NCT6775_REG_AUTO_TEMP[]
267 = { 0x121, 0x221, 0x321, 0x821, 0x921 };
268 static const u16 NCT6775_REG_AUTO_PWM[]
269 = { 0x127, 0x227, 0x327, 0x827, 0x927 };
271 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
272 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
274 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
276 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
277 0x135, 0x235, 0x335, 0x835, 0x935 };
278 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
279 0x138, 0x238, 0x338, 0x838, 0x938 };
281 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
282 0x136, 0x236, 0x336, 0x836, 0x936 };
283 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
284 0x137, 0x237, 0x337, 0x837, 0x937 };
286 static const char *const nct6775_temp_label[] = {
300 "PCH_CHIP_CPU_MAX_TEMP",
310 static const char *const nct6776_temp_label[] = {
325 "PCH_CHIP_CPU_MAX_TEMP",
336 static const char *const nct6779_temp_label[] = {
355 "PCH_CHIP_CPU_MAX_TEMP",
366 #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
367 #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
369 #define NUM_REG_TEMP ARRAY_SIZE(NCT6775_REG_TEMP)
371 static inline int reg_to_pwm_enable(int pwm, int mode)
373 if (mode == 0 && pwm == 255)
375 if (mode == 3) /* SmartFan III */
376 return 2; /* convert to thermal cruise */
379 return 4; /* SmartFan IV */
382 static inline int pwm_enable_to_reg(int mode)
395 /* 1 is DC mode, output in ms */
396 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
398 return mode ? 400 * reg : 100 * reg;
401 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
403 return SENSORS_LIMIT((mode ? (msec + 200) / 400 :
404 (msec + 50) / 100), 1, 255);
407 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
409 if (reg == 0 || reg == 255)
411 return 1350000U / (reg << divreg);
414 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
416 if ((reg & 0xff1f) == 0xff1f)
419 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
424 return 1350000U / reg;
427 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
429 if (reg == 0 || reg == 0xffff)
433 * Even though the registers are 16 bit wide, the fan divisor
436 return 1350000U / (reg << divreg);
439 static inline unsigned int
446 * Some of the voltage inputs have internal scaling, the tables below
447 * contain 8 (the ADC LSB in mV) * scaling factor * 100
449 static const u16 scale_in[15] = {
450 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
454 static inline long in_from_reg(u8 reg, u8 nr)
456 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
459 static inline u8 in_to_reg(u32 val, u8 nr)
461 return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
466 * Data structures and manipulation thereof
469 struct nct6775_data {
470 int addr; /* IO base of hw monitor block */
474 struct device *hwmon_dev;
477 u16 reg_temp[3][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
478 u8 temp_src[NUM_TEMP];
479 u16 reg_temp_config[NUM_TEMP];
480 const char * const *temp_label;
487 const u16 *REG_IN_MINMAX[2];
489 const u16 *REG_TARGET;
491 const u16 *REG_FAN_MODE;
492 const u16 *REG_FAN_MIN;
493 const u16 *REG_FAN_TIME[3];
495 const u8 *REG_PWM_MODE;
496 const u8 *PWM_MODE_MASK;
498 const u16 *REG_PWM[3];
499 const u16 *REG_PWM_READ;
501 const u16 *REG_TEMP_FIXED;
502 const u16 *REG_TEMP_MON;
503 const u16 *REG_AUTO_TEMP;
504 const u16 *REG_AUTO_PWM;
506 const u16 *REG_CRITICAL_TEMP;
507 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
509 const u16 *REG_TEMP_SOURCE; /* temp register sources */
510 const u16 *REG_TEMP_SEL[2]; /* pwm temp, 0=base, 1=weight */
512 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=hyst, 2=step */
513 const u16 *REG_WEIGHT_DUTY[2]; /* 0=step, 1=base */
515 const u16 *REG_TEMP_OFFSET;
517 const u16 *REG_ALARM;
520 const u8 *CASEOPEN_MASK;
522 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
523 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
525 struct mutex update_lock;
526 char valid; /* !=0 if following fields are valid */
527 unsigned long last_updated; /* In jiffies */
529 /* Register values */
530 u8 bank; /* current register bank */
531 u8 in_num; /* number of in inputs we have */
532 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
537 u8 has_fan; /* some fan inputs can be disabled */
538 u8 has_fan_min; /* some fans don't have min register */
541 u8 temp_fixed_num; /* 3 or 6 */
542 u8 temp_type[NUM_TEMP_FIXED];
543 s8 temp_offset[NUM_TEMP_FIXED];
544 s16 temp[3][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
548 u8 pwm_num; /* number of pwm */
550 u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */
551 u8 pwm_enable[5]; /* 0->off
553 * 2->thermal cruise mode (also called SmartFan I)
554 * 3->fan speed cruise mode
555 * 4->enhanced variable thermal cruise (also called
558 u8 pwm[3][5]; /* [0]=pwm, [1]=fan_start_output, [2]=fan_stop_output */
563 u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
565 /* Automatic fan speed control registers */
570 u8 pwm_temp_sel[2][5];
572 u8 pwm_weight_enable[5]; /* 0->off, 1->on */
573 u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol,
576 u8 weight_duty[2][5]; /* 0->duty_step, 1->duty_base */
586 struct nct6775_sio_data {
591 static bool is_word_sized(struct nct6775_data *data, u16 reg)
593 switch (data->kind) {
596 return (((reg & 0xff00) == 0x100 ||
597 (reg & 0xff00) == 0x200) &&
598 ((reg & 0x00ff) == 0x50 ||
599 (reg & 0x00ff) == 0x53 ||
600 (reg & 0x00ff) == 0x55)) ||
601 (reg & 0xfff0) == 0x630 ||
602 reg == 0x640 || reg == 0x642 ||
603 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
604 reg == 0x73 || reg == 0x75 || reg == 0x77;
606 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
607 ((reg & 0xfff0) == 0x4c0 && (reg & 0x000f) < 0x09) ||
608 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
609 reg == 0x640 || reg == 0x642 ||
610 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
617 * On older chips, only registers 0x50-0x5f are banked.
618 * On more recent chips, all registers are banked.
619 * Assume that is the case and set the bank number for each access.
620 * Cache the bank number so it only needs to be set if it changes.
622 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
625 if (data->bank != bank) {
626 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
627 outb_p(bank, data->addr + DATA_REG_OFFSET);
632 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
634 int res, word_sized = is_word_sized(data, reg);
636 mutex_lock(&data->lock);
638 nct6775_set_bank(data, reg);
639 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
640 res = inb_p(data->addr + DATA_REG_OFFSET);
642 outb_p((reg & 0xff) + 1,
643 data->addr + ADDR_REG_OFFSET);
644 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
647 mutex_unlock(&data->lock);
651 static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
653 int word_sized = is_word_sized(data, reg);
655 mutex_lock(&data->lock);
657 nct6775_set_bank(data, reg);
658 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
660 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
661 outb_p((reg & 0xff) + 1,
662 data->addr + ADDR_REG_OFFSET);
664 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
666 mutex_unlock(&data->lock);
670 /* We left-align 8-bit temperature values to make the code simpler */
671 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
675 res = nct6775_read_value(data, reg);
676 if (!is_word_sized(data, reg))
682 static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
684 if (!is_word_sized(data, reg))
686 return nct6775_write_value(data, reg, value);
689 /* This function assumes that the caller holds data->update_lock */
690 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
696 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
697 | (data->fan_div[0] & 0x7);
698 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
701 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
702 | ((data->fan_div[1] << 4) & 0x70);
703 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
705 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
706 | (data->fan_div[2] & 0x7);
707 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
710 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
711 | ((data->fan_div[3] << 4) & 0x70);
712 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
717 static void nct6775_write_fan_div_common(struct device *dev,
718 struct nct6775_data *data, int nr)
720 if (data->kind == nct6775)
721 nct6775_write_fan_div(data, nr);
724 static void nct6775_update_fan_div(struct nct6775_data *data)
728 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
729 data->fan_div[0] = i & 0x7;
730 data->fan_div[1] = (i & 0x70) >> 4;
731 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
732 data->fan_div[2] = i & 0x7;
733 if (data->has_fan & (1<<3))
734 data->fan_div[3] = (i & 0x70) >> 4;
737 static void nct6775_update_fan_div_common(struct device *dev,
738 struct nct6775_data *data)
740 if (data->kind == nct6775)
741 nct6775_update_fan_div(data);
744 static void nct6775_update_pwm(struct device *dev)
746 struct nct6775_data *data = dev_get_drvdata(dev);
751 for (i = 0; i < data->pwm_num; i++) {
752 if (!(data->has_pwm & (1 << i)))
755 duty_is_dc = data->REG_PWM_MODE[i] &&
756 (nct6775_read_value(data, data->REG_PWM_MODE[i])
757 & data->PWM_MODE_MASK[i]);
758 data->pwm_mode[i] = duty_is_dc;
760 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
761 for (j = 0; j < 3; j++)
763 = nct6775_read_value(data, data->REG_PWM[j][i]);
765 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
766 (fanmodecfg >> 4) & 7);
768 data->tolerance[i][0] = fanmodecfg & 0x0f;
769 if (data->kind == nct6779) {
770 reg = nct6775_read_value(data,
771 NCT6779_REG_TOLERANCE_H[i]);
772 data->tolerance[i][0] |= (reg & 0x70) >> 1;
774 data->tolerance[i][1] =
775 nct6775_read_value(data,
776 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
778 data->pwm_weight_enable[i] =
779 nct6775_read_value(data, data->REG_TEMP_SEL[1][i])
783 for (j = 0; j < 2; j++) {
784 reg = nct6775_read_value(data,
785 data->REG_TEMP_SEL[j][i]);
786 data->pwm_temp_sel[j][i] = reg & 0x1f;
788 /* Weight temp data */
789 for (j = 0; j < 3; j++) {
790 data->weight_temp[j][i]
791 = nct6775_read_value(data,
792 data->REG_WEIGHT_TEMP[j][i]);
794 /* Weight duty (pwm) data */
795 for (j = 0; j < 2; j++) {
796 if (!data->REG_WEIGHT_DUTY[j])
798 data->weight_duty[j][i]
799 = nct6775_read_value(data,
800 data->REG_WEIGHT_DUTY[j][i]);
805 static void nct6775_update_pwm_limits(struct device *dev)
807 struct nct6775_data *data = dev_get_drvdata(dev);
811 for (i = 0; i < data->pwm_num; i++) {
812 if (!(data->has_pwm & (1 << i)))
815 for (j = 0; j < 3; j++) {
816 data->fan_time[j][i] =
817 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
820 data->target_temp[i] =
821 nct6775_read_value(data, data->REG_TARGET[i]) &
822 (data->pwm_mode[i] ? 0xff : 0x7f);
824 nct6775_read_value(data, data->REG_TEMP_MON[i]);
826 for (j = 0; j < data->auto_pwm_num; j++) {
827 data->auto_pwm[i][j] =
828 nct6775_read_value(data,
829 NCT6775_AUTO_PWM(data, i, j));
830 data->auto_temp[i][j] =
831 nct6775_read_value(data,
832 NCT6775_AUTO_TEMP(data, i, j));
835 /* critical auto_pwm temperature data */
836 data->auto_temp[i][data->auto_pwm_num] =
837 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
839 switch (data->kind) {
841 reg = nct6775_read_value(data,
842 NCT6775_REG_CRITICAL_ENAB[i]);
843 data->auto_pwm[i][data->auto_pwm_num] =
844 (reg & 0x02) ? 0xff : 0x00;
847 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
850 reg = nct6775_read_value(data,
851 NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
853 data->auto_pwm[i][data->auto_pwm_num] =
854 nct6775_read_value(data,
855 NCT6779_REG_CRITICAL_PWM[i]);
857 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
863 static struct nct6775_data *nct6775_update_device(struct device *dev)
865 struct nct6775_data *data = dev_get_drvdata(dev);
868 mutex_lock(&data->update_lock);
870 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
872 /* Fan clock dividers */
873 nct6775_update_fan_div_common(dev, data);
875 /* Measured voltages and limits */
876 for (i = 0; i < data->in_num; i++) {
877 if (!(data->have_in & (1 << i)))
880 data->in[i][0] = nct6775_read_value(data,
882 data->in[i][1] = nct6775_read_value(data,
883 data->REG_IN_MINMAX[0][i]);
884 data->in[i][2] = nct6775_read_value(data,
885 data->REG_IN_MINMAX[1][i]);
888 /* Measured fan speeds and limits */
889 for (i = 0; i < 5; i++) {
892 if (!(data->has_fan & (1 << i)))
895 reg = nct6775_read_value(data, data->REG_FAN[i]);
896 data->rpm[i] = data->fan_from_reg(reg,
899 if (data->has_fan_min & (1 << i))
900 data->fan_min[i] = nct6775_read_value(data,
901 data->REG_FAN_MIN[i]);
904 * If we failed to measure the fan speed and clock
905 * divider can be increased, let's try that for next
908 if (data->has_fan_div
909 && (reg >= 0xff || (data->kind == nct6775
911 && data->fan_div[i] < 0x07) {
912 dev_dbg(dev, "Increasing fan%d "
913 "clock divider from %u to %u\n",
914 i + 1, div_from_reg(data->fan_div[i]),
915 div_from_reg(data->fan_div[i] + 1));
917 nct6775_write_fan_div_common(dev, data, i);
918 /* Preserve min limit if possible */
919 if ((data->has_fan_min & (1 << i))
920 && data->fan_min[i] >= 2
921 && data->fan_min[i] != 255)
922 nct6775_write_value(data,
923 data->REG_FAN_MIN[i],
924 (data->fan_min[i] /= 2));
928 nct6775_update_pwm(dev);
929 nct6775_update_pwm_limits(dev);
931 /* Measured temperatures and limits */
932 for (i = 0; i < NUM_TEMP; i++) {
933 if (!(data->have_temp & (1 << i)))
935 for (j = 0; j < 3; j++) {
936 if (data->reg_temp[j][i])
938 = nct6775_read_temp(data,
939 data->reg_temp[j][i]);
941 if (!(data->have_temp_fixed & (1 << i)))
944 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
948 for (i = 0; i < 6; i++) {
950 if (!data->REG_ALARM[i])
952 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
953 data->alarms |= (((u64)alarm) << (i << 3));
956 data->caseopen = nct6775_read_value(data, data->REG_CASEOPEN);
958 data->last_updated = jiffies;
962 mutex_unlock(&data->update_lock);
967 * Sysfs callback functions
970 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
972 struct nct6775_data *data = nct6775_update_device(dev);
973 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
975 int index = sattr->index;
976 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
980 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
983 struct nct6775_data *data = dev_get_drvdata(dev);
984 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
986 int index = sattr->index;
988 int err = kstrtoul(buf, 10, &val);
991 mutex_lock(&data->update_lock);
992 data->in[nr][index] = in_to_reg(val, nr);
993 nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr],
994 data->in[nr][index]);
995 mutex_unlock(&data->update_lock);
1000 show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1002 struct nct6775_data *data = nct6775_update_device(dev);
1003 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1004 int nr = sattr->index;
1005 return sprintf(buf, "%u\n",
1006 (unsigned int)((data->alarms >> nr) & 0x01));
1009 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
1010 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
1011 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
1012 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0);
1013 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0);
1014 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0);
1015 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0);
1016 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0);
1017 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0);
1018 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0);
1019 static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0);
1020 static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0);
1021 static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0);
1022 static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0);
1023 static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0);
1025 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1026 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1027 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1028 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1029 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
1030 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21);
1031 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20);
1032 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
1033 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
1034 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 24);
1035 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
1036 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 26);
1037 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 27);
1038 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 28);
1039 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 29);
1041 static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg,
1042 store_in_reg, 0, 1);
1043 static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg,
1044 store_in_reg, 1, 1);
1045 static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg,
1046 store_in_reg, 2, 1);
1047 static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg,
1048 store_in_reg, 3, 1);
1049 static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg,
1050 store_in_reg, 4, 1);
1051 static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg,
1052 store_in_reg, 5, 1);
1053 static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg,
1054 store_in_reg, 6, 1);
1055 static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg,
1056 store_in_reg, 7, 1);
1057 static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg,
1058 store_in_reg, 8, 1);
1059 static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg,
1060 store_in_reg, 9, 1);
1061 static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg,
1062 store_in_reg, 10, 1);
1063 static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg,
1064 store_in_reg, 11, 1);
1065 static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg,
1066 store_in_reg, 12, 1);
1067 static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg,
1068 store_in_reg, 13, 1);
1069 static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg,
1070 store_in_reg, 14, 1);
1072 static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg,
1073 store_in_reg, 0, 2);
1074 static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg,
1075 store_in_reg, 1, 2);
1076 static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg,
1077 store_in_reg, 2, 2);
1078 static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg,
1079 store_in_reg, 3, 2);
1080 static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg,
1081 store_in_reg, 4, 2);
1082 static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg,
1083 store_in_reg, 5, 2);
1084 static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg,
1085 store_in_reg, 6, 2);
1086 static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg,
1087 store_in_reg, 7, 2);
1088 static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg,
1089 store_in_reg, 8, 2);
1090 static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg,
1091 store_in_reg, 9, 2);
1092 static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg,
1093 store_in_reg, 10, 2);
1094 static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg,
1095 store_in_reg, 11, 2);
1096 static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg,
1097 store_in_reg, 12, 2);
1098 static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg,
1099 store_in_reg, 13, 2);
1100 static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg,
1101 store_in_reg, 14, 2);
1103 static struct attribute *nct6775_attributes_in[15][5] = {
1105 &sensor_dev_attr_in0_input.dev_attr.attr,
1106 &sensor_dev_attr_in0_min.dev_attr.attr,
1107 &sensor_dev_attr_in0_max.dev_attr.attr,
1108 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1112 &sensor_dev_attr_in1_input.dev_attr.attr,
1113 &sensor_dev_attr_in1_min.dev_attr.attr,
1114 &sensor_dev_attr_in1_max.dev_attr.attr,
1115 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1119 &sensor_dev_attr_in2_input.dev_attr.attr,
1120 &sensor_dev_attr_in2_min.dev_attr.attr,
1121 &sensor_dev_attr_in2_max.dev_attr.attr,
1122 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1126 &sensor_dev_attr_in3_input.dev_attr.attr,
1127 &sensor_dev_attr_in3_min.dev_attr.attr,
1128 &sensor_dev_attr_in3_max.dev_attr.attr,
1129 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1133 &sensor_dev_attr_in4_input.dev_attr.attr,
1134 &sensor_dev_attr_in4_min.dev_attr.attr,
1135 &sensor_dev_attr_in4_max.dev_attr.attr,
1136 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1140 &sensor_dev_attr_in5_input.dev_attr.attr,
1141 &sensor_dev_attr_in5_min.dev_attr.attr,
1142 &sensor_dev_attr_in5_max.dev_attr.attr,
1143 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1147 &sensor_dev_attr_in6_input.dev_attr.attr,
1148 &sensor_dev_attr_in6_min.dev_attr.attr,
1149 &sensor_dev_attr_in6_max.dev_attr.attr,
1150 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1154 &sensor_dev_attr_in7_input.dev_attr.attr,
1155 &sensor_dev_attr_in7_min.dev_attr.attr,
1156 &sensor_dev_attr_in7_max.dev_attr.attr,
1157 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1161 &sensor_dev_attr_in8_input.dev_attr.attr,
1162 &sensor_dev_attr_in8_min.dev_attr.attr,
1163 &sensor_dev_attr_in8_max.dev_attr.attr,
1164 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1168 &sensor_dev_attr_in9_input.dev_attr.attr,
1169 &sensor_dev_attr_in9_min.dev_attr.attr,
1170 &sensor_dev_attr_in9_max.dev_attr.attr,
1171 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1175 &sensor_dev_attr_in10_input.dev_attr.attr,
1176 &sensor_dev_attr_in10_min.dev_attr.attr,
1177 &sensor_dev_attr_in10_max.dev_attr.attr,
1178 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1182 &sensor_dev_attr_in11_input.dev_attr.attr,
1183 &sensor_dev_attr_in11_min.dev_attr.attr,
1184 &sensor_dev_attr_in11_max.dev_attr.attr,
1185 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1189 &sensor_dev_attr_in12_input.dev_attr.attr,
1190 &sensor_dev_attr_in12_min.dev_attr.attr,
1191 &sensor_dev_attr_in12_max.dev_attr.attr,
1192 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1196 &sensor_dev_attr_in13_input.dev_attr.attr,
1197 &sensor_dev_attr_in13_min.dev_attr.attr,
1198 &sensor_dev_attr_in13_max.dev_attr.attr,
1199 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1203 &sensor_dev_attr_in14_input.dev_attr.attr,
1204 &sensor_dev_attr_in14_min.dev_attr.attr,
1205 &sensor_dev_attr_in14_max.dev_attr.attr,
1206 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1211 static const struct attribute_group nct6775_group_in[15] = {
1212 { .attrs = nct6775_attributes_in[0] },
1213 { .attrs = nct6775_attributes_in[1] },
1214 { .attrs = nct6775_attributes_in[2] },
1215 { .attrs = nct6775_attributes_in[3] },
1216 { .attrs = nct6775_attributes_in[4] },
1217 { .attrs = nct6775_attributes_in[5] },
1218 { .attrs = nct6775_attributes_in[6] },
1219 { .attrs = nct6775_attributes_in[7] },
1220 { .attrs = nct6775_attributes_in[8] },
1221 { .attrs = nct6775_attributes_in[9] },
1222 { .attrs = nct6775_attributes_in[10] },
1223 { .attrs = nct6775_attributes_in[11] },
1224 { .attrs = nct6775_attributes_in[12] },
1225 { .attrs = nct6775_attributes_in[13] },
1226 { .attrs = nct6775_attributes_in[14] },
1230 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1232 struct nct6775_data *data = nct6775_update_device(dev);
1233 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1234 int nr = sattr->index;
1235 return sprintf(buf, "%d\n", data->rpm[nr]);
1239 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1241 struct nct6775_data *data = nct6775_update_device(dev);
1242 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1243 int nr = sattr->index;
1244 return sprintf(buf, "%d\n",
1245 data->fan_from_reg_min(data->fan_min[nr],
1246 data->fan_div[nr]));
1250 show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1252 struct nct6775_data *data = nct6775_update_device(dev);
1253 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1254 int nr = sattr->index;
1255 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1259 store_fan_min(struct device *dev, struct device_attribute *attr,
1260 const char *buf, size_t count)
1262 struct nct6775_data *data = dev_get_drvdata(dev);
1263 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1264 int nr = sattr->index;
1270 err = kstrtoul(buf, 10, &val);
1274 mutex_lock(&data->update_lock);
1275 if (!data->has_fan_div) {
1277 * Only NCT6776F for now, so we know that this is a 13 bit
1285 val = 1350000U / val;
1286 val = (val & 0x1f) | ((val << 3) & 0xff00);
1288 data->fan_min[nr] = val;
1289 goto write_min; /* Leave fan divider alone */
1292 /* No min limit, alarm disabled */
1293 data->fan_min[nr] = 255;
1294 new_div = data->fan_div[nr]; /* No change */
1295 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1298 reg = 1350000U / val;
1299 if (reg >= 128 * 255) {
1301 * Speed below this value cannot possibly be represented,
1302 * even with the highest divider (128)
1304 data->fan_min[nr] = 254;
1305 new_div = 7; /* 128 == (1 << 7) */
1306 dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
1307 "minimum\n", nr + 1, val,
1308 data->fan_from_reg_min(254, 7));
1311 * Speed above this value cannot possibly be represented,
1312 * even with the lowest divider (1)
1314 data->fan_min[nr] = 1;
1315 new_div = 0; /* 1 == (1 << 0) */
1316 dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
1317 "maximum\n", nr + 1, val,
1318 data->fan_from_reg_min(1, 0));
1321 * Automatically pick the best divider, i.e. the one such
1322 * that the min limit will correspond to a register value
1323 * in the 96..192 range
1326 while (reg > 192 && new_div < 7) {
1330 data->fan_min[nr] = reg;
1335 * Write both the fan clock divider (if it changed) and the new
1336 * fan min (unconditionally)
1338 if (new_div != data->fan_div[nr]) {
1339 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1340 nr + 1, div_from_reg(data->fan_div[nr]),
1341 div_from_reg(new_div));
1342 data->fan_div[nr] = new_div;
1343 nct6775_write_fan_div_common(dev, data, nr);
1344 /* Give the chip time to sample a new speed value */
1345 data->last_updated = jiffies;
1349 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1351 mutex_unlock(&data->update_lock);
1356 static struct sensor_device_attribute sda_fan_input[] = {
1357 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
1358 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
1359 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
1360 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
1361 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
1364 static struct sensor_device_attribute sda_fan_alarm[] = {
1365 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
1366 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
1367 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
1368 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
1369 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
1372 static struct sensor_device_attribute sda_fan_min[] = {
1373 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
1375 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
1377 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
1379 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
1381 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
1385 static struct sensor_device_attribute sda_fan_div[] = {
1386 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
1387 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
1388 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
1389 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
1390 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
1394 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1396 struct nct6775_data *data = nct6775_update_device(dev);
1397 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1398 int nr = sattr->index;
1399 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1403 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1405 struct nct6775_data *data = nct6775_update_device(dev);
1406 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1408 int index = sattr->index;
1410 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1414 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1417 struct nct6775_data *data = dev_get_drvdata(dev);
1418 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1420 int index = sattr->index;
1424 err = kstrtol(buf, 10, &val);
1428 mutex_lock(&data->update_lock);
1429 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1430 nct6775_write_temp(data, data->reg_temp[index][nr],
1431 data->temp[index][nr]);
1432 mutex_unlock(&data->update_lock);
1437 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1439 struct nct6775_data *data = nct6775_update_device(dev);
1440 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1442 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
1446 store_temp_offset(struct device *dev, struct device_attribute *attr,
1447 const char *buf, size_t count)
1449 struct nct6775_data *data = dev_get_drvdata(dev);
1450 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1451 int nr = sattr->index;
1455 err = kstrtol(buf, 10, &val);
1459 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1461 mutex_lock(&data->update_lock);
1462 data->temp_offset[nr] = val;
1463 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
1464 mutex_unlock(&data->update_lock);
1470 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
1472 struct nct6775_data *data = nct6775_update_device(dev);
1473 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1474 int nr = sattr->index;
1475 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
1479 store_temp_type(struct device *dev, struct device_attribute *attr,
1480 const char *buf, size_t count)
1482 struct nct6775_data *data = nct6775_update_device(dev);
1483 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1484 int nr = sattr->index;
1487 u8 vbat, diode, bit;
1489 err = kstrtoul(buf, 10, &val);
1493 if (val != 1 && val != 3 && val != 4)
1496 mutex_lock(&data->update_lock);
1498 data->temp_type[nr] = val;
1499 vbat = nct6775_read_value(data, data->REG_VBAT) & ~(0x02 << nr);
1500 diode = nct6775_read_value(data, data->REG_DIODE) & ~(0x02 << nr);
1503 case 1: /* CPU diode (diode, current mode) */
1507 case 3: /* diode, voltage mode */
1510 case 4: /* thermistor */
1513 nct6775_write_value(data, data->REG_VBAT, vbat);
1514 nct6775_write_value(data, data->REG_DIODE, diode);
1516 mutex_unlock(&data->update_lock);
1520 static struct sensor_device_attribute_2 sda_temp_input[] = {
1521 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
1522 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
1523 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0),
1524 SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0),
1525 SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0),
1526 SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0),
1527 SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0),
1528 SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0),
1529 SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0),
1530 SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0),
1533 static struct sensor_device_attribute sda_temp_label[] = {
1534 SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
1535 SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
1536 SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
1537 SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
1538 SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
1539 SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
1540 SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6),
1541 SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7),
1542 SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8),
1543 SENSOR_ATTR(temp10_label, S_IRUGO, show_temp_label, NULL, 9),
1546 static struct sensor_device_attribute_2 sda_temp_max[] = {
1547 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1549 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1551 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1553 SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1555 SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1557 SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1559 SENSOR_ATTR_2(temp7_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1561 SENSOR_ATTR_2(temp8_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1563 SENSOR_ATTR_2(temp9_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1565 SENSOR_ATTR_2(temp10_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1569 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1570 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1572 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1574 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1576 SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1578 SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1580 SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1582 SENSOR_ATTR_2(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1584 SENSOR_ATTR_2(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1586 SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1588 SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1592 static struct sensor_device_attribute sda_temp_offset[] = {
1593 SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1594 store_temp_offset, 0),
1595 SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1596 store_temp_offset, 1),
1597 SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1598 store_temp_offset, 2),
1599 SENSOR_ATTR(temp4_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1600 store_temp_offset, 3),
1601 SENSOR_ATTR(temp5_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1602 store_temp_offset, 4),
1603 SENSOR_ATTR(temp6_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1604 store_temp_offset, 5),
1607 static struct sensor_device_attribute sda_temp_type[] = {
1608 SENSOR_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type,
1609 store_temp_type, 0),
1610 SENSOR_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type,
1611 store_temp_type, 1),
1612 SENSOR_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type,
1613 store_temp_type, 2),
1614 SENSOR_ATTR(temp4_type, S_IRUGO | S_IWUSR, show_temp_type,
1615 store_temp_type, 3),
1616 SENSOR_ATTR(temp5_type, S_IRUGO | S_IWUSR, show_temp_type,
1617 store_temp_type, 4),
1618 SENSOR_ATTR(temp6_type, S_IRUGO | S_IWUSR, show_temp_type,
1619 store_temp_type, 5),
1622 static struct sensor_device_attribute sda_temp_alarm[] = {
1623 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
1624 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
1625 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
1628 #define NUM_TEMP_ALARM ARRAY_SIZE(sda_temp_alarm)
1631 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
1633 struct nct6775_data *data = nct6775_update_device(dev);
1634 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1636 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
1640 store_pwm_mode(struct device *dev, struct device_attribute *attr,
1641 const char *buf, size_t count)
1643 struct nct6775_data *data = dev_get_drvdata(dev);
1644 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1645 int nr = sattr->index;
1650 err = kstrtoul(buf, 10, &val);
1657 /* Setting DC mode is not supported for all chips/channels */
1658 if (data->REG_PWM_MODE[nr] == 0) {
1664 mutex_lock(&data->update_lock);
1665 data->pwm_mode[nr] = val;
1666 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
1667 reg &= ~data->PWM_MODE_MASK[nr];
1669 reg |= data->PWM_MODE_MASK[nr];
1670 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
1671 mutex_unlock(&data->update_lock);
1676 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1678 struct nct6775_data *data = nct6775_update_device(dev);
1679 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1681 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
1685 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1687 struct nct6775_data *data = nct6775_update_device(dev);
1688 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1690 int index = sattr->index;
1694 * For automatic fan control modes, show current pwm readings.
1695 * Otherwise, show the configured value.
1697 if (index == 0 && data->pwm_enable[nr] > 1)
1698 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
1700 pwm = data->pwm[index][nr];
1702 return sprintf(buf, "%d\n", pwm);
1706 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
1709 struct nct6775_data *data = dev_get_drvdata(dev);
1710 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1712 int index = sattr->index;
1716 err = kstrtoul(buf, 10, &val);
1719 if (val > 255 || (index && val == 0))
1722 mutex_lock(&data->update_lock);
1723 data->pwm[index][nr] = val;
1724 nct6775_write_value(data, data->REG_PWM[index][nr], val);
1725 mutex_unlock(&data->update_lock);
1729 /* Returns 0 if OK, -EINVAL otherwise */
1730 static int check_trip_points(struct nct6775_data *data, int nr)
1734 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1735 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
1738 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1739 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
1742 /* validate critical temperature and pwm if enabled (pwm > 0) */
1743 if (data->auto_pwm[nr][data->auto_pwm_num]) {
1744 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
1745 data->auto_temp[nr][data->auto_pwm_num] ||
1746 data->auto_pwm[nr][data->auto_pwm_num - 1] >
1747 data->auto_pwm[nr][data->auto_pwm_num])
1754 store_pwm_enable(struct device *dev, struct device_attribute *attr,
1755 const char *buf, size_t count)
1757 struct nct6775_data *data = dev_get_drvdata(dev);
1758 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1759 int nr = sattr->index;
1764 err = kstrtoul(buf, 10, &val);
1771 if (val == 4 && check_trip_points(data, nr)) {
1772 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
1773 dev_err(dev, "Adjust trip points and try again\n");
1777 mutex_lock(&data->update_lock);
1778 data->pwm_enable[nr] = val;
1781 * turn off pwm control: select manual mode, set pwm to maximum
1783 data->pwm[0][nr] = 255;
1784 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
1786 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1788 reg |= (pwm_enable_to_reg(val) << 4);
1789 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1790 mutex_unlock(&data->update_lock);
1795 show_pwm_temp(struct device *dev, struct device_attribute *attr, char *buf)
1797 struct nct6775_data *data = nct6775_update_device(dev);
1798 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1799 int nr = sattr->index;
1801 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->pwm_temp[nr]));
1805 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
1807 struct nct6775_data *data = nct6775_update_device(dev);
1808 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1810 return sprintf(buf, "%d\n",
1811 data->pwm_temp_sel[sattr->index][sattr->nr]);
1815 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
1816 const char *buf, size_t count)
1818 struct nct6775_data *data = nct6775_update_device(dev);
1819 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1821 int index = sattr->index;
1825 static const int max_src[] = {
1826 ARRAY_SIZE(nct6775_temp_label),
1827 ARRAY_SIZE(nct6776_temp_label),
1828 ARRAY_SIZE(nct6779_temp_label)
1831 err = kstrtoul(buf, 10, &val);
1834 if (val == 0 || val > 0x1f)
1837 val = SENSORS_LIMIT(val, 1, max_src[data->kind]);
1839 if (!strlen(data->temp_label[val]))
1842 mutex_lock(&data->update_lock);
1843 data->pwm_temp_sel[index][nr] = val;
1844 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
1847 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
1848 mutex_unlock(&data->update_lock);
1854 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
1856 struct nct6775_data *data = nct6775_update_device(dev);
1857 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1859 return sprintf(buf, "%d\n",
1860 data->target_temp[sattr->index] * 1000);
1864 store_target_temp(struct device *dev, struct device_attribute *attr,
1865 const char *buf, size_t count)
1867 struct nct6775_data *data = dev_get_drvdata(dev);
1868 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1869 int nr = sattr->index;
1873 err = kstrtol(buf, 10, &val);
1877 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
1879 mutex_lock(&data->update_lock);
1880 data->target_temp[nr] = val;
1881 nct6775_write_value(data, data->REG_TARGET[nr], val);
1882 mutex_unlock(&data->update_lock);
1887 show_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1890 struct nct6775_data *data = nct6775_update_device(dev);
1891 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1893 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1894 int tolerance = data->tolerance[nr][point];
1895 int temp = data->auto_temp[nr][sattr->index];
1897 return sprintf(buf, "%d\n", (temp - tolerance) * 1000);
1901 store_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1902 const char *buf, size_t count)
1904 struct nct6775_data *data = dev_get_drvdata(dev);
1905 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1907 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1911 int maxlimit[2][3] = { { 15, 7, 63 }, { 15, 7, 7 } };
1912 int mask[] = { 0x0f, 0x07, 0x07 };
1915 err = kstrtol(buf, 10, &val);
1919 temp = data->auto_temp[nr][sattr->index];
1920 val = temp - DIV_ROUND_CLOSEST(val, 1000);
1922 /* Limit tolerance as needed */
1923 val = SENSORS_LIMIT(val, 0, maxlimit[point][data->kind]);
1925 mutex_lock(&data->update_lock);
1927 nct6775_write_value(data,
1928 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
1931 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1932 reg = (reg & ~mask[nr]) | (val & mask[nr]);
1933 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1934 if (data->kind == nct6779) {
1935 reg = nct6775_read_value(data,
1936 NCT6779_REG_TOLERANCE_H[nr]);
1937 reg = (reg & 0x70) | ((val & 0x38) << 1);
1938 nct6775_write_value(data,
1939 NCT6779_REG_TOLERANCE_H[nr], reg);
1943 data->tolerance[nr][point] = val;
1944 mutex_unlock(&data->update_lock);
1948 static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
1949 static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
1950 static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
1951 static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0);
1952 static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0);
1954 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1956 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1958 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1960 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1962 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1965 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1966 store_pwm_enable, 0);
1967 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1968 store_pwm_enable, 1);
1969 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1970 store_pwm_enable, 2);
1971 static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1972 store_pwm_enable, 3);
1973 static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1974 store_pwm_enable, 4);
1976 static SENSOR_DEVICE_ATTR_2(pwm1_temp_sel, S_IWUSR | S_IRUGO,
1977 show_pwm_temp_sel, store_pwm_temp_sel, 0, 0);
1978 static SENSOR_DEVICE_ATTR_2(pwm2_temp_sel, S_IWUSR | S_IRUGO,
1979 show_pwm_temp_sel, store_pwm_temp_sel, 1, 0);
1980 static SENSOR_DEVICE_ATTR_2(pwm3_temp_sel, S_IWUSR | S_IRUGO,
1981 show_pwm_temp_sel, store_pwm_temp_sel, 2, 0);
1982 static SENSOR_DEVICE_ATTR_2(pwm4_temp_sel, S_IWUSR | S_IRUGO,
1983 show_pwm_temp_sel, store_pwm_temp_sel, 3, 0);
1984 static SENSOR_DEVICE_ATTR_2(pwm5_temp_sel, S_IWUSR | S_IRUGO,
1985 show_pwm_temp_sel, store_pwm_temp_sel, 4, 0);
1987 static SENSOR_DEVICE_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1988 store_target_temp, 0);
1989 static SENSOR_DEVICE_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1990 store_target_temp, 1);
1991 static SENSOR_DEVICE_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1992 store_target_temp, 2);
1993 static SENSOR_DEVICE_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1994 store_target_temp, 3);
1995 static SENSOR_DEVICE_ATTR(pwm5_target, S_IWUSR | S_IRUGO, show_target_temp,
1996 store_target_temp, 4);
1998 /* Monitored pwm temperatures */
1999 static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, show_pwm_temp, NULL, 0);
2000 static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO, show_pwm_temp, NULL, 1);
2001 static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO, show_pwm_temp, NULL, 2);
2002 static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO, show_pwm_temp, NULL, 3);
2003 static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO, show_pwm_temp, NULL, 4);
2005 /* Smart Fan registers */
2008 show_pwm_weight_enable(struct device *dev, struct device_attribute *attr,
2011 struct nct6775_data *data = nct6775_update_device(dev);
2012 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2014 return sprintf(buf, "%d\n", data->pwm_weight_enable[sattr->index]);
2018 store_pwm_weight_enable(struct device *dev, struct device_attribute *attr,
2019 const char *buf, size_t count)
2021 struct nct6775_data *data = dev_get_drvdata(dev);
2022 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2023 int nr = sattr->index;
2028 err = kstrtoul(buf, 10, &val);
2035 mutex_lock(&data->update_lock);
2036 data->pwm_weight_enable[nr] = val;
2037 reg = nct6775_read_value(data, data->REG_TEMP_SEL[1][nr]);
2041 nct6775_write_value(data, data->REG_TEMP_SEL[1][nr], reg);
2042 mutex_unlock(&data->update_lock);
2047 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
2049 struct nct6775_data *data = nct6775_update_device(dev);
2050 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2052 int index = sattr->index;
2054 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
2058 store_weight_temp(struct device *dev, struct device_attribute *attr,
2059 const char *buf, size_t count)
2061 struct nct6775_data *data = dev_get_drvdata(dev);
2062 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2064 int index = sattr->index;
2068 err = kstrtoul(buf, 10, &val);
2072 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
2074 mutex_lock(&data->update_lock);
2075 data->weight_temp[index][nr] = val;
2076 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
2077 mutex_unlock(&data->update_lock);
2082 show_weight_duty(struct device *dev, struct device_attribute *attr, char *buf)
2084 struct nct6775_data *data = nct6775_update_device(dev);
2085 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2087 int index = sattr->index;
2089 return sprintf(buf, "%d\n", data->weight_duty[index][nr]);
2093 store_weight_duty(struct device *dev, struct device_attribute *attr,
2094 const char *buf, size_t count)
2096 struct nct6775_data *data = dev_get_drvdata(dev);
2097 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2099 int index = sattr->index;
2103 err = kstrtoul(buf, 10, &val);
2107 val = SENSORS_LIMIT(val, 0, 255);
2109 mutex_lock(&data->update_lock);
2110 data->weight_duty[index][nr] = val;
2111 nct6775_write_value(data, data->REG_WEIGHT_DUTY[index][nr], val);
2112 mutex_unlock(&data->update_lock);
2116 static SENSOR_DEVICE_ATTR(pwm1_weight_enable, S_IWUSR | S_IRUGO,
2117 show_pwm_weight_enable, store_pwm_weight_enable, 0);
2118 static SENSOR_DEVICE_ATTR(pwm2_weight_enable, S_IWUSR | S_IRUGO,
2119 show_pwm_weight_enable, store_pwm_weight_enable, 1);
2120 static SENSOR_DEVICE_ATTR(pwm3_weight_enable, S_IWUSR | S_IRUGO,
2121 show_pwm_weight_enable, store_pwm_weight_enable, 2);
2122 static SENSOR_DEVICE_ATTR(pwm4_weight_enable, S_IWUSR | S_IRUGO,
2123 show_pwm_weight_enable, store_pwm_weight_enable, 3);
2124 static SENSOR_DEVICE_ATTR(pwm5_weight_enable, S_IWUSR | S_IRUGO,
2125 show_pwm_weight_enable, store_pwm_weight_enable, 4);
2127 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO,
2128 show_pwm_temp_sel, store_pwm_temp_sel, 0, 1);
2129 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO,
2130 show_pwm_temp_sel, store_pwm_temp_sel, 1, 1);
2131 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO,
2132 show_pwm_temp_sel, store_pwm_temp_sel, 2, 1);
2133 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO,
2134 show_pwm_temp_sel, store_pwm_temp_sel, 3, 1);
2135 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO,
2136 show_pwm_temp_sel, store_pwm_temp_sel, 4, 1);
2138 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO,
2139 show_weight_temp, store_weight_temp, 0, 0);
2140 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO,
2141 show_weight_temp, store_weight_temp, 1, 0);
2142 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO,
2143 show_weight_temp, store_weight_temp, 2, 0);
2144 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO,
2145 show_weight_temp, store_weight_temp, 3, 0);
2146 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO,
2147 show_weight_temp, store_weight_temp, 4, 0);
2149 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2150 show_weight_temp, store_weight_temp, 0, 1);
2151 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2152 show_weight_temp, store_weight_temp, 1, 1);
2153 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2154 show_weight_temp, store_weight_temp, 2, 1);
2155 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2156 show_weight_temp, store_weight_temp, 3, 1);
2157 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2158 show_weight_temp, store_weight_temp, 4, 1);
2160 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO,
2161 show_weight_temp, store_weight_temp, 0, 2);
2162 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO,
2163 show_weight_temp, store_weight_temp, 1, 2);
2164 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO,
2165 show_weight_temp, store_weight_temp, 2, 2);
2166 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO,
2167 show_weight_temp, store_weight_temp, 3, 2);
2168 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO,
2169 show_weight_temp, store_weight_temp, 4, 2);
2171 static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO,
2172 show_weight_duty, store_weight_duty, 0, 0);
2173 static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO,
2174 show_weight_duty, store_weight_duty, 1, 0);
2175 static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO,
2176 show_weight_duty, store_weight_duty, 2, 0);
2177 static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO,
2178 show_weight_duty, store_weight_duty, 3, 0);
2179 static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO,
2180 show_weight_duty, store_weight_duty, 4, 0);
2182 /* duty_base is not supported on all chips */
2183 static struct sensor_device_attribute_2 sda_weight_duty_base[] = {
2184 SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO,
2185 show_weight_duty, store_weight_duty, 0, 1),
2186 SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO,
2187 show_weight_duty, store_weight_duty, 1, 1),
2188 SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO,
2189 show_weight_duty, store_weight_duty, 2, 1),
2190 SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO,
2191 show_weight_duty, store_weight_duty, 3, 1),
2192 SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO,
2193 show_weight_duty, store_weight_duty, 4, 1),
2197 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2199 struct nct6775_data *data = nct6775_update_device(dev);
2200 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2202 int index = sattr->index;
2204 return sprintf(buf, "%d\n",
2205 step_time_from_reg(data->fan_time[index][nr],
2206 data->pwm_mode[nr]));
2210 store_fan_time(struct device *dev, struct device_attribute *attr,
2211 const char *buf, size_t count)
2213 struct nct6775_data *data = dev_get_drvdata(dev);
2214 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2216 int index = sattr->index;
2220 err = kstrtoul(buf, 10, &val);
2224 val = step_time_to_reg(val, data->pwm_mode[nr]);
2225 mutex_lock(&data->update_lock);
2226 data->fan_time[index][nr] = val;
2227 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2228 mutex_unlock(&data->update_lock);
2233 show_name(struct device *dev, struct device_attribute *attr, char *buf)
2235 struct nct6775_data *data = dev_get_drvdata(dev);
2237 return sprintf(buf, "%s\n", data->name);
2240 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
2242 static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2243 store_fan_time, 0, 0);
2244 static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2245 store_fan_time, 1, 0);
2246 static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2247 store_fan_time, 2, 0);
2248 static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2249 store_fan_time, 3, 0);
2250 static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2251 store_fan_time, 4, 0);
2253 static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2254 store_fan_time, 0, 1);
2255 static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2256 store_fan_time, 1, 1);
2257 static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2258 store_fan_time, 2, 1);
2259 static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2260 store_fan_time, 3, 1);
2261 static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2262 store_fan_time, 4, 1);
2264 static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
2265 show_fan_time, store_fan_time, 0, 2);
2266 static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
2267 show_fan_time, store_fan_time, 1, 2);
2268 static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
2269 show_fan_time, store_fan_time, 2, 2);
2270 static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
2271 show_fan_time, store_fan_time, 3, 2);
2272 static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
2273 show_fan_time, store_fan_time, 4, 2);
2275 static SENSOR_DEVICE_ATTR_2(pwm1_start_output, S_IWUSR | S_IRUGO, show_pwm,
2277 static SENSOR_DEVICE_ATTR_2(pwm2_start_output, S_IWUSR | S_IRUGO, show_pwm,
2279 static SENSOR_DEVICE_ATTR_2(pwm3_start_output, S_IWUSR | S_IRUGO, show_pwm,
2281 static SENSOR_DEVICE_ATTR_2(pwm4_start_output, S_IWUSR | S_IRUGO, show_pwm,
2283 static SENSOR_DEVICE_ATTR_2(pwm5_start_output, S_IWUSR | S_IRUGO, show_pwm,
2286 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2288 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2290 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2292 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2294 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2297 static struct attribute *nct6775_attributes_pwm[5][19] = {
2299 &sensor_dev_attr_temp11_input.dev_attr.attr,
2300 &sensor_dev_attr_pwm1.dev_attr.attr,
2301 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
2302 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2303 &sensor_dev_attr_pwm1_weight_enable.dev_attr.attr,
2304 &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr,
2305 &sensor_dev_attr_pwm1_target.dev_attr.attr,
2306 &sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
2307 &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
2308 &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
2309 &sensor_dev_attr_pwm1_start_output.dev_attr.attr,
2310 &sensor_dev_attr_pwm1_stop_output.dev_attr.attr,
2311 &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr,
2312 &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr,
2313 &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr,
2314 &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr,
2315 &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr,
2319 &sensor_dev_attr_temp12_input.dev_attr.attr,
2320 &sensor_dev_attr_pwm2.dev_attr.attr,
2321 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
2322 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2323 &sensor_dev_attr_pwm2_weight_enable.dev_attr.attr,
2324 &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr,
2325 &sensor_dev_attr_pwm2_target.dev_attr.attr,
2326 &sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
2327 &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
2328 &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
2329 &sensor_dev_attr_pwm2_start_output.dev_attr.attr,
2330 &sensor_dev_attr_pwm2_stop_output.dev_attr.attr,
2331 &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr,
2332 &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr,
2333 &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr,
2334 &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr,
2335 &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr,
2339 &sensor_dev_attr_temp13_input.dev_attr.attr,
2340 &sensor_dev_attr_pwm3.dev_attr.attr,
2341 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
2342 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
2343 &sensor_dev_attr_pwm3_weight_enable.dev_attr.attr,
2344 &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr,
2345 &sensor_dev_attr_pwm3_target.dev_attr.attr,
2346 &sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
2347 &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
2348 &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
2349 &sensor_dev_attr_pwm3_start_output.dev_attr.attr,
2350 &sensor_dev_attr_pwm3_stop_output.dev_attr.attr,
2351 &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr,
2352 &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr,
2353 &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr,
2354 &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr,
2355 &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr,
2359 &sensor_dev_attr_temp14_input.dev_attr.attr,
2360 &sensor_dev_attr_pwm4.dev_attr.attr,
2361 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
2362 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
2363 &sensor_dev_attr_pwm4_weight_enable.dev_attr.attr,
2364 &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr,
2365 &sensor_dev_attr_pwm4_target.dev_attr.attr,
2366 &sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
2367 &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
2368 &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
2369 &sensor_dev_attr_pwm4_start_output.dev_attr.attr,
2370 &sensor_dev_attr_pwm4_stop_output.dev_attr.attr,
2371 &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr,
2372 &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr,
2373 &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr,
2374 &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr,
2375 &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr,
2379 &sensor_dev_attr_temp15_input.dev_attr.attr,
2380 &sensor_dev_attr_pwm5.dev_attr.attr,
2381 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
2382 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
2383 &sensor_dev_attr_pwm5_weight_enable.dev_attr.attr,
2384 &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr,
2385 &sensor_dev_attr_pwm5_target.dev_attr.attr,
2386 &sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
2387 &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
2388 &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
2389 &sensor_dev_attr_pwm5_start_output.dev_attr.attr,
2390 &sensor_dev_attr_pwm5_stop_output.dev_attr.attr,
2391 &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr,
2392 &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr,
2393 &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr,
2394 &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr,
2395 &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr,
2400 static const struct attribute_group nct6775_group_pwm[5] = {
2401 { .attrs = nct6775_attributes_pwm[0] },
2402 { .attrs = nct6775_attributes_pwm[1] },
2403 { .attrs = nct6775_attributes_pwm[2] },
2404 { .attrs = nct6775_attributes_pwm[3] },
2405 { .attrs = nct6775_attributes_pwm[4] },
2409 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2411 struct nct6775_data *data = nct6775_update_device(dev);
2412 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2414 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2418 store_auto_pwm(struct device *dev, struct device_attribute *attr,
2419 const char *buf, size_t count)
2421 struct nct6775_data *data = dev_get_drvdata(dev);
2422 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2424 int point = sattr->index;
2429 err = kstrtoul(buf, 10, &val);
2435 if (point == data->auto_pwm_num) {
2436 if (data->kind != nct6775 && !val)
2438 if (data->kind != nct6779 && val)
2442 mutex_lock(&data->update_lock);
2443 data->auto_pwm[nr][point] = val;
2444 if (point < data->auto_pwm_num) {
2445 nct6775_write_value(data,
2446 NCT6775_AUTO_PWM(data, nr, point),
2447 data->auto_pwm[nr][point]);
2449 switch (data->kind) {
2451 /* disable if needed (pwm == 0) */
2452 reg = nct6775_read_value(data,
2453 NCT6775_REG_CRITICAL_ENAB[nr]);
2458 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2462 break; /* always enabled, nothing to do */
2464 nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
2466 reg = nct6775_read_value(data,
2467 NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
2472 nct6775_write_value(data,
2473 NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
2478 mutex_unlock(&data->update_lock);
2483 show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2485 struct nct6775_data *data = nct6775_update_device(dev);
2486 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2488 int point = sattr->index;
2491 * We don't know for sure if the temperature is signed or unsigned.
2492 * Assume it is unsigned.
2494 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2498 store_auto_temp(struct device *dev, struct device_attribute *attr,
2499 const char *buf, size_t count)
2501 struct nct6775_data *data = dev_get_drvdata(dev);
2502 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2504 int point = sattr->index;
2508 err = kstrtoul(buf, 10, &val);
2514 mutex_lock(&data->update_lock);
2515 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2516 if (point < data->auto_pwm_num) {
2517 nct6775_write_value(data,
2518 NCT6775_AUTO_TEMP(data, nr, point),
2519 data->auto_temp[nr][point]);
2521 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2522 data->auto_temp[nr][point]);
2524 mutex_unlock(&data->update_lock);
2529 * The number of auto-point trip points is chip dependent.
2530 * Need to check support while generating/removing attribute files.
2532 static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
2533 SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
2534 show_auto_pwm, store_auto_pwm, 0, 0),
2535 SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
2536 show_auto_temp, store_auto_temp, 0, 0),
2537 SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2538 show_auto_temp_hyst, store_auto_temp_hyst, 0, 0),
2539 SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
2540 show_auto_pwm, store_auto_pwm, 0, 1),
2541 SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
2542 show_auto_temp, store_auto_temp, 0, 1),
2543 SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2544 show_auto_temp_hyst, store_auto_temp_hyst, 0, 1),
2545 SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
2546 show_auto_pwm, store_auto_pwm, 0, 2),
2547 SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
2548 show_auto_temp, store_auto_temp, 0, 2),
2549 SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2550 show_auto_temp_hyst, store_auto_temp_hyst, 0, 2),
2551 SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
2552 show_auto_pwm, store_auto_pwm, 0, 3),
2553 SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
2554 show_auto_temp, store_auto_temp, 0, 3),
2555 SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2556 show_auto_temp_hyst, store_auto_temp_hyst, 0, 3),
2557 SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
2558 show_auto_pwm, store_auto_pwm, 0, 4),
2559 SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
2560 show_auto_temp, store_auto_temp, 0, 4),
2561 SENSOR_ATTR_2(pwm1_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2562 show_auto_temp_hyst, store_auto_temp_hyst, 0, 4),
2563 SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
2564 show_auto_pwm, store_auto_pwm, 0, 5),
2565 SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
2566 show_auto_temp, store_auto_temp, 0, 5),
2567 SENSOR_ATTR_2(pwm1_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2568 show_auto_temp_hyst, store_auto_temp_hyst, 0, 5),
2569 SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
2570 show_auto_pwm, store_auto_pwm, 0, 6),
2571 SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
2572 show_auto_temp, store_auto_temp, 0, 6),
2573 SENSOR_ATTR_2(pwm1_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2574 show_auto_temp_hyst, store_auto_temp_hyst, 0, 6),
2576 SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
2577 show_auto_pwm, store_auto_pwm, 1, 0),
2578 SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
2579 show_auto_temp, store_auto_temp, 1, 0),
2580 SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2581 show_auto_temp_hyst, store_auto_temp_hyst, 1, 0),
2582 SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
2583 show_auto_pwm, store_auto_pwm, 1, 1),
2584 SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
2585 show_auto_temp, store_auto_temp, 1, 1),
2586 SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2587 show_auto_temp_hyst, store_auto_temp_hyst, 1, 1),
2588 SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
2589 show_auto_pwm, store_auto_pwm, 1, 2),
2590 SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
2591 show_auto_temp, store_auto_temp, 1, 2),
2592 SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2593 show_auto_temp_hyst, store_auto_temp_hyst, 1, 2),
2594 SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
2595 show_auto_pwm, store_auto_pwm, 1, 3),
2596 SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
2597 show_auto_temp, store_auto_temp, 1, 3),
2598 SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2599 show_auto_temp_hyst, store_auto_temp_hyst, 1, 3),
2600 SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
2601 show_auto_pwm, store_auto_pwm, 1, 4),
2602 SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
2603 show_auto_temp, store_auto_temp, 1, 4),
2604 SENSOR_ATTR_2(pwm2_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2605 show_auto_temp_hyst, store_auto_temp_hyst, 1, 4),
2606 SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
2607 show_auto_pwm, store_auto_pwm, 1, 5),
2608 SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
2609 show_auto_temp, store_auto_temp, 1, 5),
2610 SENSOR_ATTR_2(pwm2_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2611 show_auto_temp_hyst, store_auto_temp_hyst, 1, 5),
2612 SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
2613 show_auto_pwm, store_auto_pwm, 1, 6),
2614 SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
2615 show_auto_temp, store_auto_temp, 1, 6),
2616 SENSOR_ATTR_2(pwm2_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2617 show_auto_temp_hyst, store_auto_temp_hyst, 1, 6),
2619 SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
2620 show_auto_pwm, store_auto_pwm, 2, 0),
2621 SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
2622 show_auto_temp, store_auto_temp, 2, 0),
2623 SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2624 show_auto_temp_hyst, store_auto_temp_hyst, 2, 0),
2625 SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
2626 show_auto_pwm, store_auto_pwm, 2, 1),
2627 SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
2628 show_auto_temp, store_auto_temp, 2, 1),
2629 SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2630 show_auto_temp_hyst, store_auto_temp_hyst, 2, 1),
2631 SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
2632 show_auto_pwm, store_auto_pwm, 2, 2),
2633 SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
2634 show_auto_temp, store_auto_temp, 2, 2),
2635 SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2636 show_auto_temp_hyst, store_auto_temp_hyst, 2, 2),
2637 SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
2638 show_auto_pwm, store_auto_pwm, 2, 3),
2639 SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
2640 show_auto_temp, store_auto_temp, 2, 3),
2641 SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2642 show_auto_temp_hyst, store_auto_temp_hyst, 2, 3),
2643 SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
2644 show_auto_pwm, store_auto_pwm, 2, 4),
2645 SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
2646 show_auto_temp, store_auto_temp, 2, 4),
2647 SENSOR_ATTR_2(pwm3_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2648 show_auto_temp_hyst, store_auto_temp_hyst, 2, 4),
2649 SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
2650 show_auto_pwm, store_auto_pwm, 2, 5),
2651 SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
2652 show_auto_temp, store_auto_temp, 2, 5),
2653 SENSOR_ATTR_2(pwm3_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2654 show_auto_temp_hyst, store_auto_temp_hyst, 2, 5),
2655 SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
2656 show_auto_pwm, store_auto_pwm, 2, 6),
2657 SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
2658 show_auto_temp, store_auto_temp, 2, 6),
2659 SENSOR_ATTR_2(pwm3_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2660 show_auto_temp_hyst, store_auto_temp_hyst, 2, 6),
2662 SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
2663 show_auto_pwm, store_auto_pwm, 3, 0),
2664 SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
2665 show_auto_temp, store_auto_temp, 3, 0),
2666 SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2667 show_auto_temp_hyst, store_auto_temp_hyst, 3, 0),
2668 SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
2669 show_auto_pwm, store_auto_pwm, 3, 1),
2670 SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
2671 show_auto_temp, store_auto_temp, 3, 1),
2672 SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2673 show_auto_temp_hyst, store_auto_temp_hyst, 3, 1),
2674 SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
2675 show_auto_pwm, store_auto_pwm, 3, 2),
2676 SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
2677 show_auto_temp, store_auto_temp, 3, 2),
2678 SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2679 show_auto_temp_hyst, store_auto_temp_hyst, 3, 2),
2680 SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
2681 show_auto_pwm, store_auto_pwm, 3, 3),
2682 SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
2683 show_auto_temp, store_auto_temp, 3, 3),
2684 SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2685 show_auto_temp_hyst, store_auto_temp_hyst, 3, 3),
2686 SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
2687 show_auto_pwm, store_auto_pwm, 3, 4),
2688 SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
2689 show_auto_temp, store_auto_temp, 3, 4),
2690 SENSOR_ATTR_2(pwm4_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2691 show_auto_temp_hyst, store_auto_temp_hyst, 3, 4),
2692 SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
2693 show_auto_pwm, store_auto_pwm, 3, 5),
2694 SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
2695 show_auto_temp, store_auto_temp, 3, 5),
2696 SENSOR_ATTR_2(pwm4_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2697 show_auto_temp_hyst, store_auto_temp_hyst, 3, 5),
2698 SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
2699 show_auto_pwm, store_auto_pwm, 3, 6),
2700 SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
2701 show_auto_temp, store_auto_temp, 3, 6),
2702 SENSOR_ATTR_2(pwm4_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2703 show_auto_temp_hyst, store_auto_temp_hyst, 3, 6),
2705 SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
2706 show_auto_pwm, store_auto_pwm, 4, 0),
2707 SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
2708 show_auto_temp, store_auto_temp, 4, 0),
2709 SENSOR_ATTR_2(pwm5_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2710 show_auto_temp_hyst, store_auto_temp_hyst, 4, 0),
2711 SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
2712 show_auto_pwm, store_auto_pwm, 4, 1),
2713 SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
2714 show_auto_temp, store_auto_temp, 4, 1),
2715 SENSOR_ATTR_2(pwm5_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2716 show_auto_temp_hyst, store_auto_temp_hyst, 4, 1),
2717 SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
2718 show_auto_pwm, store_auto_pwm, 4, 2),
2719 SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
2720 show_auto_temp, store_auto_temp, 4, 2),
2721 SENSOR_ATTR_2(pwm5_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2722 show_auto_temp_hyst, store_auto_temp_hyst, 4, 2),
2723 SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
2724 show_auto_pwm, store_auto_pwm, 4, 3),
2725 SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
2726 show_auto_temp, store_auto_temp, 4, 3),
2727 SENSOR_ATTR_2(pwm5_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2728 show_auto_temp_hyst, store_auto_temp_hyst, 4, 3),
2729 SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
2730 show_auto_pwm, store_auto_pwm, 4, 4),
2731 SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
2732 show_auto_temp, store_auto_temp, 4, 4),
2733 SENSOR_ATTR_2(pwm5_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2734 show_auto_temp_hyst, store_auto_temp_hyst, 4, 4),
2735 SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
2736 show_auto_pwm, store_auto_pwm, 4, 5),
2737 SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
2738 show_auto_temp, store_auto_temp, 4, 5),
2739 SENSOR_ATTR_2(pwm5_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2740 show_auto_temp_hyst, store_auto_temp_hyst, 4, 5),
2741 SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
2742 show_auto_pwm, store_auto_pwm, 4, 6),
2743 SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
2744 show_auto_temp, store_auto_temp, 4, 6),
2745 SENSOR_ATTR_2(pwm5_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2746 show_auto_temp_hyst, store_auto_temp_hyst, 4, 6),
2750 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
2752 struct nct6775_data *data = dev_get_drvdata(dev);
2753 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
2756 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
2758 /* Case open detection */
2761 show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
2763 struct nct6775_data *data = nct6775_update_device(dev);
2765 return sprintf(buf, "%d\n",
2766 !!(data->caseopen & to_sensor_dev_attr_2(attr)->index));
2770 clear_caseopen(struct device *dev, struct device_attribute *attr,
2771 const char *buf, size_t count)
2773 struct nct6775_data *data = dev_get_drvdata(dev);
2774 struct nct6775_sio_data *sio_data = dev->platform_data;
2775 int nr = to_sensor_dev_attr(attr)->index;
2779 if (kstrtoul(buf, 10, &val) || val != 0)
2782 mutex_lock(&data->update_lock);
2785 * Use CR registers to clear caseopen status.
2786 * The CR registers are the same for all chips, and not all chips
2787 * support clearing the caseopen status through "regular" registers.
2789 superio_enter(sio_data->sioreg);
2790 superio_select(sio_data->sioreg, NCT6775_LD_ACPI);
2791 reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
2792 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2793 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2794 superio_exit(sio_data->sioreg);
2796 data->valid = 0; /* Force cache refresh */
2798 mutex_unlock(&data->update_lock);
2803 static struct sensor_device_attribute sda_caseopen[] = {
2804 SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2806 SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2811 * Driver and device management
2814 static void nct6775_device_remove_files(struct device *dev)
2817 * some entries in the following arrays may not have been used in
2818 * device_create_file(), but device_remove_file() will ignore them
2821 struct nct6775_data *data = dev_get_drvdata(dev);
2823 for (i = 0; i < data->pwm_num; i++)
2824 sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
2826 for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++)
2827 device_remove_file(dev, &sda_weight_duty_base[i].dev_attr);
2829 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)
2830 device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
2832 for (i = 0; i < data->in_num; i++)
2833 sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
2835 for (i = 0; i < 5; i++) {
2836 device_remove_file(dev, &sda_fan_input[i].dev_attr);
2837 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
2838 device_remove_file(dev, &sda_fan_div[i].dev_attr);
2839 device_remove_file(dev, &sda_fan_min[i].dev_attr);
2841 for (i = 0; i < NUM_TEMP; i++) {
2842 if (!(data->have_temp & (1 << i)))
2844 device_remove_file(dev, &sda_temp_input[i].dev_attr);
2845 device_remove_file(dev, &sda_temp_label[i].dev_attr);
2846 device_remove_file(dev, &sda_temp_max[i].dev_attr);
2847 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
2848 if (!(data->have_temp_fixed & (1 << i)))
2850 device_remove_file(dev, &sda_temp_type[i].dev_attr);
2851 device_remove_file(dev, &sda_temp_offset[i].dev_attr);
2852 if (i >= NUM_TEMP_ALARM)
2854 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
2857 device_remove_file(dev, &sda_caseopen[0].dev_attr);
2858 device_remove_file(dev, &sda_caseopen[1].dev_attr);
2860 device_remove_file(dev, &dev_attr_name);
2861 device_remove_file(dev, &dev_attr_cpu0_vid);
2864 /* Get the monitoring functions started */
2865 static inline void __devinit nct6775_init_device(struct nct6775_data *data)
2870 /* Start monitoring if needed */
2871 if (data->REG_CONFIG) {
2872 tmp = nct6775_read_value(data, data->REG_CONFIG);
2874 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
2877 /* Enable temperature sensors if needed */
2878 for (i = 0; i < NUM_TEMP; i++) {
2879 if (!(data->have_temp & (1 << i)))
2881 if (!data->reg_temp_config[i])
2883 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
2885 nct6775_write_value(data, data->reg_temp_config[i],
2889 /* Enable VBAT monitoring if needed */
2890 tmp = nct6775_read_value(data, data->REG_VBAT);
2892 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
2894 diode = nct6775_read_value(data, data->REG_DIODE);
2896 for (i = 0; i < data->temp_fixed_num; i++) {
2897 if (!(data->have_temp_fixed & (1 << i)))
2899 if ((tmp & (0x02 << i))) /* diode */
2900 data->temp_type[i] = 3 - ((diode >> i) & 0x02);
2901 else /* thermistor */
2902 data->temp_type[i] = 4;
2906 static void __devinit
2907 nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data,
2908 struct nct6775_data *data)
2911 bool fan3pin, fan3min, fan4pin, fan4min, fan5pin;
2912 bool pwm3pin, pwm4pin, pwm5pin;
2914 superio_enter(sio_data->sioreg);
2916 /* fan4 and fan5 share some pins with the GPIO and serial flash */
2917 if (data->kind == nct6775) {
2918 regval = superio_inb(sio_data->sioreg, 0x2c);
2920 fan3pin = regval & (1 << 6);
2922 pwm3pin = regval & (1 << 7);
2924 /* On NCT6775, fan4 shares pins with the fdc interface */
2925 fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80);
2930 } else if (data->kind == nct6776) {
2931 bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
2933 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
2934 regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
2939 fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
2944 fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01;
2949 fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02;
2956 } else { /* NCT6779D */
2957 regval = superio_inb(sio_data->sioreg, 0x1c);
2959 fan3pin = !(regval & (1 << 5));
2960 fan4pin = !(regval & (1 << 6));
2961 fan5pin = !(regval & (1 << 7));
2963 pwm3pin = !(regval & (1 << 0));
2964 pwm4pin = !(regval & (1 << 1));
2965 pwm5pin = !(regval & (1 << 2));
2971 superio_exit(sio_data->sioreg);
2973 data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */
2974 data->has_fan |= (fan3pin << 2);
2975 data->has_fan_min |= (fan3min << 2);
2977 data->has_fan |= (fan4pin << 3) | (fan5pin << 4);
2978 data->has_fan_min |= (fan4min << 3) | (fan5pin << 4);
2980 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4);
2983 static int __devinit nct6775_probe(struct platform_device *pdev)
2985 struct device *dev = &pdev->dev;
2986 struct nct6775_sio_data *sio_data = dev->platform_data;
2987 struct nct6775_data *data;
2988 struct resource *res;
2991 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
2993 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
2994 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
2996 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
2997 (unsigned long)res->start,
2998 (unsigned long)res->start + IOREGION_LENGTH - 1);
3002 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3009 data->kind = sio_data->kind;
3010 data->addr = res->start;
3011 mutex_init(&data->lock);
3012 mutex_init(&data->update_lock);
3013 data->name = nct6775_device_names[data->kind];
3014 platform_set_drvdata(pdev, data);
3016 switch (data->kind) {
3019 data->have_in = 0x1ff;
3021 data->auto_pwm_num = 6;
3022 data->has_fan_div = true;
3023 data->temp_fixed_num = 3;
3025 data->fan_from_reg = fan_from_reg16;
3026 data->fan_from_reg_min = fan_from_reg8;
3028 data->REG_CONFIG = NCT6775_REG_CONFIG;
3029 data->REG_VBAT = NCT6775_REG_VBAT;
3030 data->REG_DIODE = NCT6775_REG_DIODE;
3031 data->REG_VIN = NCT6775_REG_IN;
3032 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3033 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3034 data->REG_TARGET = NCT6775_REG_TARGET;
3035 data->REG_FAN = NCT6775_REG_FAN;
3036 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3037 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
3038 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3039 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3040 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3041 data->REG_PWM[0] = NCT6775_REG_PWM;
3042 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3043 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3044 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3045 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
3046 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
3047 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3048 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3049 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3050 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3051 data->REG_CRITICAL_TEMP_TOLERANCE
3052 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3053 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3054 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3055 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3056 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3057 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3058 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3059 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3060 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3061 data->REG_ALARM = NCT6775_REG_ALARM;
3062 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3063 data->CASEOPEN_MASK = NCT6775_CASEOPEN_MASK;
3065 reg_temp = NCT6775_REG_TEMP;
3066 reg_temp_over = NCT6775_REG_TEMP_OVER;
3067 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3068 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
3073 data->have_in = 0x1ff;
3075 data->auto_pwm_num = 4;
3076 data->has_fan_div = false;
3077 data->temp_fixed_num = 3;
3079 data->fan_from_reg = fan_from_reg13;
3080 data->fan_from_reg_min = fan_from_reg13;
3082 data->REG_CONFIG = NCT6775_REG_CONFIG;
3083 data->REG_VBAT = NCT6775_REG_VBAT;
3084 data->REG_DIODE = NCT6775_REG_DIODE;
3085 data->REG_VIN = NCT6775_REG_IN;
3086 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3087 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3088 data->REG_TARGET = NCT6775_REG_TARGET;
3089 data->REG_FAN = NCT6775_REG_FAN;
3090 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3091 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3092 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3093 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3094 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3095 data->REG_PWM[0] = NCT6775_REG_PWM;
3096 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3097 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3098 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3099 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3100 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3101 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3102 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3103 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3104 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3105 data->REG_CRITICAL_TEMP_TOLERANCE
3106 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3107 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3108 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3109 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3110 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3111 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3112 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3113 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3114 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3115 data->REG_WEIGHT_DUTY[1] = NCT6776_REG_WEIGHT_DUTY_BASE;
3116 data->REG_ALARM = NCT6775_REG_ALARM;
3117 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3118 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
3120 reg_temp = NCT6775_REG_TEMP;
3121 reg_temp_over = NCT6775_REG_TEMP_OVER;
3122 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3123 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3128 data->have_in = 0x7fff;
3130 data->auto_pwm_num = 4;
3131 data->has_fan_div = false;
3132 data->temp_fixed_num = 6;
3134 data->fan_from_reg = fan_from_reg13;
3135 data->fan_from_reg_min = fan_from_reg13;
3137 data->REG_CONFIG = NCT6775_REG_CONFIG;
3138 data->REG_VBAT = NCT6775_REG_VBAT;
3139 data->REG_DIODE = NCT6775_REG_DIODE;
3140 data->REG_VIN = NCT6779_REG_IN;
3141 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3142 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3143 data->REG_TARGET = NCT6775_REG_TARGET;
3144 data->REG_FAN = NCT6779_REG_FAN;
3145 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3146 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3147 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3148 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3149 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3150 data->REG_PWM[0] = NCT6775_REG_PWM;
3151 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3152 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3153 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3154 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3155 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3156 data->REG_TEMP_FIXED = NCT6779_REG_TEMP_FIXED;
3157 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3158 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3159 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3160 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3161 data->REG_CRITICAL_TEMP_TOLERANCE
3162 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3163 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3164 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3165 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3166 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3167 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3168 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3169 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3170 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3171 data->REG_WEIGHT_DUTY[1] = NCT6776_REG_WEIGHT_DUTY_BASE;
3172 data->REG_ALARM = NCT6779_REG_ALARM;
3173 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3174 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
3176 reg_temp = NCT6779_REG_TEMP;
3177 reg_temp_over = NCT6775_REG_TEMP_OVER;
3178 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3179 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3187 /* Default to no temperature inputs, code below will adjust as needed */
3188 data->have_temp = 0;
3190 s = NUM_TEMP_FIXED; /* Index for first non-standard temperature */
3191 for (i = 0; i < NUM_REG_TEMP; i++) {
3192 if (reg_temp[i] == 0)
3195 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]);
3198 if (!src || (mask & (1 << src)))
3201 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3202 if (src <= data->temp_fixed_num) {
3203 data->have_temp |= (1 << (src - 1));
3204 data->have_temp_fixed |= (1 << (src - 1));
3206 data->reg_temp[0][src - 1] = reg_temp[i];
3207 data->reg_temp[1][src - 1] = reg_temp_over[i];
3208 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
3209 data->reg_temp_config[src - 1] = reg_temp_config[i];
3210 data->temp_src[src - 1] = src;
3217 /* Use dynamic index for other sources */
3218 data->have_temp |= 1 << s;
3221 data->reg_temp[0][s] = reg_temp[i];
3222 data->reg_temp[1][s] = reg_temp_over[i];
3223 data->reg_temp[2][s] = reg_temp_hyst[i];
3224 data->reg_temp_config[s] = reg_temp_config[i];
3227 data->temp_src[s] = src;
3231 if (data->REG_TEMP_FIXED) {
3232 for (i = 0; i < NUM_TEMP_FIXED; i++) {
3233 if (data->have_temp & (1 << i))
3235 if (!data->REG_TEMP_FIXED[i])
3237 data->have_temp |= (1 << i);
3238 data->reg_temp[0][i] = data->REG_TEMP_FIXED[i];
3239 data->temp_src[i] = i + 1;
3243 switch (data->kind) {
3245 data->temp_label = nct6775_temp_label;
3249 * On NCT6776, AUXTIN and VIN3 pins are shared.
3250 * Only way to detect it is to check if AUXTIN is used
3251 * as a temperature source, and if that source is
3254 * If that is the case, disable in6, which reports VIN3.
3255 * Otherwise disable temp3.
3257 if (data->have_temp & (1 << 2)) {
3258 u8 reg = nct6775_read_value(data,
3259 data->reg_temp_config[2]);
3261 data->have_temp &= ~(1 << 2);
3263 data->have_in &= ~(1 << 6);
3265 data->temp_label = nct6776_temp_label;
3274 * Assume voltage is disabled if the respective temperature is
3275 * used as temperature source.
3277 for (i = 0; i < ARRAY_SIZE(NCT6779_REG_TEMP); i++) {
3278 if (!(data->have_temp & (1 << i)))
3280 if (i == 2) /* AUXTIN0 */
3281 data->have_in &= ~(1 << 6); /* no VIN4 */
3282 if (i == 3) /* AUXTIN1 */
3283 data->have_in &= ~(1 << 10); /* no VIN5 */
3284 if (i == 4) /* AUXTIN2 */
3285 data->have_in &= ~(1 << 11); /* no VIN6 */
3286 if (i == 5) /* AUXTIN3 */
3287 data->have_in &= ~(1 << 14); /* no VIN7 */
3289 data->temp_label = nct6779_temp_label;
3293 /* Initialize the chip */
3294 nct6775_init_device(data);
3296 data->vrm = vid_which_vrm();
3297 superio_enter(sio_data->sioreg);
3300 * We can get the VID input values directly at logical device D 0xe3.
3302 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3303 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3304 err = device_create_file(dev, &dev_attr_cpu0_vid);
3311 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3312 tmp = superio_inb(sio_data->sioreg,
3313 NCT6775_REG_CR_FAN_DEBOUNCE);
3314 switch (data->kind) {
3323 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3325 pr_info("Enabled fan debounce for chip %s\n", data->name);
3328 superio_exit(sio_data->sioreg);
3330 nct6775_check_fan_inputs(sio_data, data);
3332 /* Read fan clock dividers immediately */
3333 nct6775_update_fan_div_common(dev, data);
3335 /* Register sysfs hooks */
3336 for (i = 0; i < data->pwm_num; i++) {
3337 if (!(data->has_pwm & (1 << i)))
3340 err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
3344 if (data->REG_WEIGHT_DUTY[1]) {
3345 err = device_create_file(dev,
3346 &sda_weight_duty_base[i].dev_attr);
3351 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
3352 struct sensor_device_attribute_2 *attr =
3353 &sda_auto_pwm_arrays[i];
3355 if (!(data->has_pwm & (1 << attr->nr)))
3357 if (attr->index > data->auto_pwm_num)
3359 err = device_create_file(dev, &attr->dev_attr);
3364 for (i = 0; i < data->in_num; i++) {
3365 if (!(data->have_in & (1 << i)))
3367 err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]);
3372 for (i = 0; i < 5; i++) {
3373 if (data->has_fan & (1 << i)) {
3374 err = device_create_file(dev,
3375 &sda_fan_input[i].dev_attr);
3378 err = device_create_file(dev,
3379 &sda_fan_alarm[i].dev_attr);
3382 if (data->kind != nct6776 &&
3383 data->kind != nct6779) {
3384 err = device_create_file(dev,
3385 &sda_fan_div[i].dev_attr);
3389 if (data->has_fan_min & (1 << i)) {
3390 err = device_create_file(dev,
3391 &sda_fan_min[i].dev_attr);
3398 for (i = 0; i < NUM_TEMP; i++) {
3399 if (!(data->have_temp & (1 << i)))
3401 err = device_create_file(dev, &sda_temp_input[i].dev_attr);
3404 if (data->temp_label) {
3405 err = device_create_file(dev,
3406 &sda_temp_label[i].dev_attr);
3410 if (data->reg_temp[1][i]) {
3411 err = device_create_file(dev,
3412 &sda_temp_max[i].dev_attr);
3416 if (data->reg_temp[2][i]) {
3417 err = device_create_file(dev,
3418 &sda_temp_max_hyst[i].dev_attr);
3422 if (!(data->have_temp_fixed & (1 << i)))
3424 err = device_create_file(dev, &sda_temp_type[i].dev_attr);
3427 err = device_create_file(dev,
3428 &sda_temp_offset[i].dev_attr);
3431 if (i >= NUM_TEMP_ALARM)
3433 err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
3438 for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
3439 if (!data->CASEOPEN_MASK[i])
3441 err = device_create_file(dev, &sda_caseopen[i].dev_attr);
3446 err = device_create_file(dev, &dev_attr_name);
3450 data->hwmon_dev = hwmon_device_register(dev);
3451 if (IS_ERR(data->hwmon_dev)) {
3452 err = PTR_ERR(data->hwmon_dev);
3459 nct6775_device_remove_files(dev);
3461 release_region(res->start, IOREGION_LENGTH);
3466 static int __devexit nct6775_remove(struct platform_device *pdev)
3468 struct nct6775_data *data = platform_get_drvdata(pdev);
3470 hwmon_device_unregister(data->hwmon_dev);
3471 nct6775_device_remove_files(&pdev->dev);
3472 release_region(data->addr, IOREGION_LENGTH);
3477 static struct platform_driver nct6775_driver = {
3479 .owner = THIS_MODULE,
3482 .probe = nct6775_probe,
3483 .remove = __devexit_p(nct6775_remove),
3486 /* nct6775_find() looks for a '627 in the Super-I/O config space */
3487 static int __init nct6775_find(int sioaddr, unsigned short *addr,
3488 struct nct6775_sio_data *sio_data)
3490 static const char __initdata sio_name_NCT6775[] = "NCT6775F";
3491 static const char __initdata sio_name_NCT6776[] = "NCT6776F";
3492 static const char __initdata sio_name_NCT6779[] = "NCT6779D";
3495 const char *sio_name;
3497 superio_enter(sioaddr);
3502 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
3503 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
3504 switch (val & SIO_ID_MASK) {
3505 case SIO_NCT6775_ID:
3506 sio_data->kind = nct6775;
3507 sio_name = sio_name_NCT6775;
3509 case SIO_NCT6776_ID:
3510 sio_data->kind = nct6776;
3511 sio_name = sio_name_NCT6776;
3513 case SIO_NCT6779_ID:
3514 sio_data->kind = nct6779;
3515 sio_name = sio_name_NCT6779;
3519 pr_debug("unsupported chip ID: 0x%04x\n", val);
3520 superio_exit(sioaddr);
3524 /* We have a known chip, find the HWM I/O address */
3525 superio_select(sioaddr, NCT6775_LD_HWM);
3526 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
3527 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
3528 *addr = val & IOREGION_ALIGNMENT;
3530 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
3531 superio_exit(sioaddr);
3535 /* Activate logical device if needed */
3536 val = superio_inb(sioaddr, SIO_REG_ENABLE);
3537 if (!(val & 0x01)) {
3538 pr_warn("Forcibly enabling Super-I/O. "
3539 "Sensor is probably unusable.\n");
3540 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
3543 superio_exit(sioaddr);
3544 pr_info("Found %s chip at %#x\n", sio_name, *addr);
3545 sio_data->sioreg = sioaddr;
3551 * when Super-I/O functions move to a separate file, the Super-I/O
3552 * bus will manage the lifetime of the device and this module will only keep
3553 * track of the nct6775 driver. But since we platform_device_alloc(), we
3554 * must keep track of the device
3556 static struct platform_device *pdev;
3558 static int __init sensors_nct6775_init(void)
3561 unsigned short address;
3562 struct resource res;
3563 struct nct6775_sio_data sio_data;
3566 * initialize sio_data->kind and sio_data->sioreg.
3568 * when Super-I/O functions move to a separate file, the Super-I/O
3569 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
3570 * nct6775 hardware monitor, and call probe()
3572 if (nct6775_find(0x2e, &address, &sio_data) &&
3573 nct6775_find(0x4e, &address, &sio_data))
3576 err = platform_driver_register(&nct6775_driver);
3580 pdev = platform_device_alloc(DRVNAME, address);
3583 pr_err("Device allocation failed\n");
3584 goto exit_unregister;
3587 err = platform_device_add_data(pdev, &sio_data,
3588 sizeof(struct nct6775_sio_data));
3590 pr_err("Platform data allocation failed\n");
3591 goto exit_device_put;
3594 memset(&res, 0, sizeof(res));
3596 res.start = address + IOREGION_OFFSET;
3597 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
3598 res.flags = IORESOURCE_IO;
3600 err = acpi_check_resource_conflict(&res);
3602 goto exit_device_put;
3604 err = platform_device_add_resources(pdev, &res, 1);
3606 pr_err("Device resource addition failed (%d)\n", err);
3607 goto exit_device_put;
3610 /* platform_device_add calls probe() */
3611 err = platform_device_add(pdev);
3613 pr_err("Device addition failed (%d)\n", err);
3614 goto exit_device_put;
3620 platform_device_put(pdev);
3622 platform_driver_unregister(&nct6775_driver);
3627 static void __exit sensors_nct6775_exit(void)
3629 platform_device_unregister(pdev);
3630 platform_driver_unregister(&nct6775_driver);
3633 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
3634 MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver");
3635 MODULE_LICENSE("GPL");
3637 module_init(sensors_nct6775_init);
3638 module_exit(sensors_nct6775_exit);