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
173 #define NCT6775_REG_FANDIV1 0x506
174 #define NCT6775_REG_FANDIV2 0x507
176 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
178 static const u16 NCT6775_REG_ALARM[6] = { 0x459, 0x45A, 0x45B };
179 static const u16 NCT6779_REG_ALARM[6] = { 0x459, 0x45A, 0x45B, 0x568 };
181 #define NCT6775_REG_CASEOPEN 0x42
183 static const u8 NCT6775_CASEOPEN_MASK[] = { 0x10, 0x00 };
184 static const u8 NCT6776_CASEOPEN_MASK[] = { 0x10, 0x40 };
186 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
187 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
189 /* DC or PWM output fan configuration */
190 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
191 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
193 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
194 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
196 /* Advanced Fan control, some values are common for all fans */
198 static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
199 static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
200 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
201 0x103, 0x203, 0x303, 0x803, 0x903 };
202 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
203 0x104, 0x204, 0x304, 0x804, 0x904 };
204 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
205 0x105, 0x205, 0x305, 0x805, 0x905 };
206 static const u16 NCT6775_REG_FAN_START_OUTPUT[]
207 = { 0x106, 0x206, 0x306, 0x806, 0x906 };
208 static const u16 NCT6775_REG_FAN_STOP_TIME[]
209 = { 0x107, 0x207, 0x307, 0x807, 0x907 };
210 static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
211 static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
213 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
215 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642};
217 static const u16 NCT6779_REG_TOLERANCE_H[]
218 = { 0x10c, 0x20c, 0x30c, 0x40c, 0x50c };
220 static const u16 NCT6779_REG_FAN[] = { 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8 };
222 static const u16 NCT6775_REG_TEMP[]
223 = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
224 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
225 static const u16 NCT6775_REG_TEMP_CONFIG[]
226 = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
227 static const u16 NCT6775_REG_TEMP_HYST[]
228 = { 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
229 static const u16 NCT6775_REG_TEMP_OVER[]
230 = { 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
232 static const u16 NCT6775_REG_TEMP_SOURCE[]
233 = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
235 static const u16 NCT6775_REG_TEMP_SEL[]
236 = { 0x100, 0x200, 0x300, 0x800, 0x900 };
238 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[]
239 = { 0x139, 0x239, 0x339, 0x839, 0x939 };
240 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[]
241 = { 0x13a, 0x23a, 0x33a, 0x83a, 0x93a };
242 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[]
243 = { 0x13b, 0x23b, 0x33b, 0x83b, 0x93b };
244 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[]
245 = { 0x13c, 0x23c, 0x33c, 0x83c, 0x93c };
246 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[]
247 = { 0x13d, 0x23d, 0x33d, 0x83d, 0x93d };
249 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[]
250 = { 0x13e, 0x23e, 0x33e, 0x83e, 0x93e };
252 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
254 static const u16 NCT6776_REG_TEMP_CONFIG[11]
255 = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
257 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
259 static const u16 NCT6775_REG_AUTO_TEMP[]
260 = { 0x121, 0x221, 0x321, 0x821, 0x921 };
261 static const u16 NCT6775_REG_AUTO_PWM[]
262 = { 0x127, 0x227, 0x327, 0x827, 0x927 };
264 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
265 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
267 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
269 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
270 0x135, 0x235, 0x335, 0x835, 0x935 };
271 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
272 0x138, 0x238, 0x338, 0x838, 0x938 };
274 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
275 0x136, 0x236, 0x336, 0x836, 0x936 };
276 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
277 0x137, 0x237, 0x337, 0x837, 0x937 };
279 static const char *const nct6775_temp_label[] = {
293 "PCH_CHIP_CPU_MAX_TEMP",
303 static const char *const nct6776_temp_label[] = {
318 "PCH_CHIP_CPU_MAX_TEMP",
329 static const char *const nct6779_temp_label[] = {
348 "PCH_CHIP_CPU_MAX_TEMP",
359 #define NUM_REG_TEMP ARRAY_SIZE(NCT6775_REG_TEMP)
361 static inline int reg_to_pwm_enable(int pwm, int mode)
363 if (mode == 0 && pwm == 255)
365 if (mode == 3) /* SmartFan III */
366 return 2; /* convert to thermal cruise */
369 return 4; /* SmartFan IV */
372 static inline int pwm_enable_to_reg(int mode)
385 /* 1 is DC mode, output in ms */
386 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
388 return mode ? 400 * reg : 100 * reg;
391 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
393 return SENSORS_LIMIT((mode ? (msec + 200) / 400 :
394 (msec + 50) / 100), 1, 255);
397 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
399 if (reg == 0 || reg == 255)
401 return 1350000U / (reg << divreg);
404 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
406 if ((reg & 0xff1f) == 0xff1f)
409 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
414 return 1350000U / reg;
417 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
419 if (reg == 0 || reg == 0xffff)
423 * Even though the registers are 16 bit wide, the fan divisor
426 return 1350000U / (reg << divreg);
429 static inline unsigned int
436 * Some of the voltage inputs have internal scaling, the tables below
437 * contain 8 (the ADC LSB in mV) * scaling factor * 100
439 static const u16 scale_in[15] = {
440 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
444 static inline long in_from_reg(u8 reg, u8 nr)
446 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
449 static inline u8 in_to_reg(u32 val, u8 nr)
451 return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
456 * Data structures and manipulation thereof
459 struct nct6775_data {
460 int addr; /* IO base of hw monitor block */
464 struct device *hwmon_dev;
467 u16 reg_temp[3][NUM_REG_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
468 u8 temp_src[NUM_REG_TEMP];
469 u16 reg_temp_config[NUM_REG_TEMP];
470 const char * const *temp_label;
473 const u16 *REG_IN_MINMAX[2];
475 const u16 *REG_TARGET;
477 const u16 *REG_FAN_MODE;
478 const u16 *REG_FAN_MIN;
479 const u16 *REG_FAN_TIME[3];
481 const u8 *REG_PWM_MODE;
482 const u8 *PWM_MODE_MASK;
484 const u16 *REG_PWM[3];
485 const u16 *REG_PWM_READ;
487 const u16 *REG_TEMP_MON;
488 const u16 *REG_AUTO_TEMP;
489 const u16 *REG_AUTO_PWM;
491 const u16 *REG_CRITICAL_TEMP;
492 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
494 const u16 *REG_TEMP_SOURCE; /* temp register sources */
495 const u16 *REG_TEMP_SEL[2]; /* pwm temp, 0=base, 1=weight */
497 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=hyst, 2=step */
498 const u16 *REG_WEIGHT_DUTY[2]; /* 0=step, 1=base */
500 const u16 *REG_TEMP_OFFSET;
502 const u16 *REG_ALARM;
505 const u8 *CASEOPEN_MASK;
507 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
508 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
510 struct mutex update_lock;
511 char valid; /* !=0 if following fields are valid */
512 unsigned long last_updated; /* In jiffies */
514 /* Register values */
515 u8 bank; /* current register bank */
516 u8 in_num; /* number of in inputs we have */
517 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
522 u8 has_fan; /* some fan inputs can be disabled */
523 u8 has_fan_min; /* some fans don't have min register */
527 s16 temp[3][NUM_REG_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
531 u8 pwm_num; /* number of pwm */
533 u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */
534 u8 pwm_enable[5]; /* 0->off
536 * 2->thermal cruise mode (also called SmartFan I)
537 * 3->fan speed cruise mode
538 * 4->enhanced variable thermal cruise (also called
541 u8 pwm[3][5]; /* [0]=pwm, [1]=fan_start_output, [2]=fan_stop_output */
546 u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
548 /* Automatic fan speed control registers */
553 u8 pwm_temp_sel[2][5];
555 u8 pwm_weight_enable[5]; /* 0->off, 1->on */
556 u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol,
559 u8 weight_duty[2][5]; /* 0->duty_step, 1->duty_base */
565 u16 have_temp_offset;
569 struct nct6775_sio_data {
574 static bool is_word_sized(struct nct6775_data *data, u16 reg)
576 switch (data->kind) {
579 return (((reg & 0xff00) == 0x100 ||
580 (reg & 0xff00) == 0x200) &&
581 ((reg & 0x00ff) == 0x50 ||
582 (reg & 0x00ff) == 0x53 ||
583 (reg & 0x00ff) == 0x55)) ||
584 (reg & 0xfff0) == 0x630 ||
585 reg == 0x640 || reg == 0x642 ||
586 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
587 reg == 0x73 || reg == 0x75 || reg == 0x77;
589 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
590 ((reg & 0xfff0) == 0x4c0 && (reg & 0x000f) < 0x09) ||
591 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
592 reg == 0x640 || reg == 0x642 ||
593 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
600 * On older chips, only registers 0x50-0x5f are banked.
601 * On more recent chips, all registers are banked.
602 * Assume that is the case and set the bank number for each access.
603 * Cache the bank number so it only needs to be set if it changes.
605 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
608 if (data->bank != bank) {
609 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
610 outb_p(bank, data->addr + DATA_REG_OFFSET);
615 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
617 int res, word_sized = is_word_sized(data, reg);
619 mutex_lock(&data->lock);
621 nct6775_set_bank(data, reg);
622 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
623 res = inb_p(data->addr + DATA_REG_OFFSET);
625 outb_p((reg & 0xff) + 1,
626 data->addr + ADDR_REG_OFFSET);
627 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
630 mutex_unlock(&data->lock);
634 static int nct6775_write_value(struct nct6775_data *data, u16 reg,
637 int word_sized = is_word_sized(data, reg);
639 mutex_lock(&data->lock);
641 nct6775_set_bank(data, reg);
642 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
644 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
645 outb_p((reg & 0xff) + 1,
646 data->addr + ADDR_REG_OFFSET);
648 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
650 mutex_unlock(&data->lock);
654 /* We left-align 8-bit temperature values to make the code simpler */
655 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
659 res = nct6775_read_value(data, reg);
660 if (!is_word_sized(data, reg))
666 static int nct6775_write_temp(struct nct6775_data *data, u16 reg,
669 if (!is_word_sized(data, reg))
671 return nct6775_write_value(data, reg, value);
674 /* This function assumes that the caller holds data->update_lock */
675 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
681 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
682 | (data->fan_div[0] & 0x7);
683 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
686 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
687 | ((data->fan_div[1] << 4) & 0x70);
688 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
690 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
691 | (data->fan_div[2] & 0x7);
692 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
695 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
696 | ((data->fan_div[3] << 4) & 0x70);
697 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
702 static void nct6775_write_fan_div_common(struct device *dev,
703 struct nct6775_data *data, int nr)
705 if (data->kind == nct6775)
706 nct6775_write_fan_div(data, nr);
709 static void nct6775_update_fan_div(struct nct6775_data *data)
713 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
714 data->fan_div[0] = i & 0x7;
715 data->fan_div[1] = (i & 0x70) >> 4;
716 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
717 data->fan_div[2] = i & 0x7;
718 if (data->has_fan & (1<<3))
719 data->fan_div[3] = (i & 0x70) >> 4;
722 static void nct6775_update_fan_div_common(struct device *dev,
723 struct nct6775_data *data)
725 if (data->kind == nct6775)
726 nct6775_update_fan_div(data);
729 static void nct6775_update_pwm(struct device *dev)
731 struct nct6775_data *data = dev_get_drvdata(dev);
736 for (i = 0; i < data->pwm_num; i++) {
737 if (!(data->has_pwm & (1 << i)))
740 duty_is_dc = data->REG_PWM_MODE[i] &&
741 (nct6775_read_value(data, data->REG_PWM_MODE[i])
742 & data->PWM_MODE_MASK[i]);
743 data->pwm_mode[i] = duty_is_dc;
745 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
746 for (j = 0; j < 3; j++)
748 = nct6775_read_value(data, data->REG_PWM[j][i]);
750 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
751 (fanmodecfg >> 4) & 7);
753 data->tolerance[i][0] = fanmodecfg & 0x0f;
754 if (data->kind == nct6779) {
755 reg = nct6775_read_value(data,
756 NCT6779_REG_TOLERANCE_H[i]);
757 data->tolerance[i][0] |= (reg & 0x70) >> 1;
759 data->tolerance[i][1] =
760 nct6775_read_value(data,
761 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
763 data->pwm_weight_enable[i] =
764 nct6775_read_value(data, data->REG_TEMP_SEL[1][i])
768 for (j = 0; j < 2; j++) {
769 reg = nct6775_read_value(data,
770 data->REG_TEMP_SEL[j][i]);
771 data->pwm_temp_sel[j][i] = reg & 0x1f;
773 /* Weight temp data */
774 for (j = 0; j < 3; j++) {
775 data->weight_temp[j][i]
776 = nct6775_read_value(data,
777 data->REG_WEIGHT_TEMP[j][i]);
779 /* Weight duty (pwm) data */
780 for (j = 0; j < 2; j++) {
781 if (!data->REG_WEIGHT_DUTY[j])
783 data->weight_duty[j][i]
784 = nct6775_read_value(data,
785 data->REG_WEIGHT_DUTY[j][i]);
790 static void nct6775_update_pwm_limits(struct device *dev)
792 struct nct6775_data *data = dev_get_drvdata(dev);
796 for (i = 0; i < data->pwm_num; i++) {
797 if (!(data->has_pwm & (1 << i)))
800 for (j = 0; j < 3; j++) {
801 data->fan_time[j][i] =
802 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
805 data->target_temp[i] =
806 nct6775_read_value(data, data->REG_TARGET[i]) &
807 (data->pwm_mode[i] ? 0xff : 0x7f);
809 nct6775_read_value(data, data->REG_TEMP_MON[i]);
811 for (j = 0; j < data->auto_pwm_num; j++) {
812 data->auto_pwm[i][j] =
813 nct6775_read_value(data,
814 NCT6775_AUTO_PWM(data, i, j));
815 data->auto_temp[i][j] =
816 nct6775_read_value(data,
817 NCT6775_AUTO_TEMP(data, i, j));
820 /* critical auto_pwm temperature data */
821 data->auto_temp[i][data->auto_pwm_num] =
822 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
824 switch (data->kind) {
826 reg = nct6775_read_value(data,
827 NCT6775_REG_CRITICAL_ENAB[i]);
828 data->auto_pwm[i][data->auto_pwm_num] =
829 (reg & 0x02) ? 0xff : 0x00;
832 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
835 reg = nct6775_read_value(data,
836 NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
838 data->auto_pwm[i][data->auto_pwm_num] =
839 nct6775_read_value(data,
840 NCT6779_REG_CRITICAL_PWM[i]);
842 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
848 static struct nct6775_data *nct6775_update_device(struct device *dev)
850 struct nct6775_data *data = dev_get_drvdata(dev);
853 mutex_lock(&data->update_lock);
855 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
857 /* Fan clock dividers */
858 nct6775_update_fan_div_common(dev, data);
860 /* Measured voltages and limits */
861 for (i = 0; i < data->in_num; i++) {
862 if (!(data->have_in & (1 << i)))
865 data->in[i][0] = nct6775_read_value(data,
867 data->in[i][1] = nct6775_read_value(data,
868 data->REG_IN_MINMAX[0][i]);
869 data->in[i][2] = nct6775_read_value(data,
870 data->REG_IN_MINMAX[1][i]);
873 /* Measured fan speeds and limits */
874 for (i = 0; i < 5; i++) {
877 if (!(data->has_fan & (1 << i)))
880 reg = nct6775_read_value(data, data->REG_FAN[i]);
881 data->rpm[i] = data->fan_from_reg(reg,
884 if (data->has_fan_min & (1 << i))
885 data->fan_min[i] = nct6775_read_value(data,
886 data->REG_FAN_MIN[i]);
889 * If we failed to measure the fan speed and clock
890 * divider can be increased, let's try that for next
893 if (data->has_fan_div
894 && (reg >= 0xff || (data->kind == nct6775
896 && data->fan_div[i] < 0x07) {
897 dev_dbg(dev, "Increasing fan%d "
898 "clock divider from %u to %u\n",
899 i + 1, div_from_reg(data->fan_div[i]),
900 div_from_reg(data->fan_div[i] + 1));
902 nct6775_write_fan_div_common(dev, data, i);
903 /* Preserve min limit if possible */
904 if ((data->has_fan_min & (1 << i))
905 && data->fan_min[i] >= 2
906 && data->fan_min[i] != 255)
907 nct6775_write_value(data,
908 data->REG_FAN_MIN[i],
909 (data->fan_min[i] /= 2));
913 nct6775_update_pwm(dev);
914 nct6775_update_pwm_limits(dev);
916 /* Measured temperatures and limits */
917 for (i = 0; i < NUM_REG_TEMP; i++) {
918 if (!(data->have_temp & (1 << i)))
920 for (j = 0; j < 3; j++) {
921 if (data->reg_temp[j][i])
923 = nct6775_read_temp(data,
924 data->reg_temp[j][i]);
926 if (!(data->have_temp_offset & (1 << i)))
929 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
933 for (i = 0; i < 6; i++) {
935 if (!data->REG_ALARM[i])
937 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
938 data->alarms |= (((u64)alarm) << (i << 3));
941 data->caseopen = nct6775_read_value(data, data->REG_CASEOPEN);
943 data->last_updated = jiffies;
947 mutex_unlock(&data->update_lock);
952 * Sysfs callback functions
955 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
957 struct nct6775_data *data = nct6775_update_device(dev);
958 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
960 int index = sattr->index;
961 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
965 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
968 struct nct6775_data *data = dev_get_drvdata(dev);
969 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
971 int index = sattr->index;
973 int err = kstrtoul(buf, 10, &val);
976 mutex_lock(&data->update_lock);
977 data->in[nr][index] = in_to_reg(val, nr);
978 nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr],
979 data->in[nr][index]);
980 mutex_unlock(&data->update_lock);
984 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
987 struct nct6775_data *data = nct6775_update_device(dev);
988 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
989 int nr = sensor_attr->index;
990 return sprintf(buf, "%u\n",
991 (unsigned int)((data->alarms >> nr) & 0x01));
994 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
995 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
996 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
997 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0);
998 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0);
999 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0);
1000 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0);
1001 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0);
1002 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0);
1003 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0);
1004 static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0);
1005 static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0);
1006 static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0);
1007 static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0);
1008 static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0);
1010 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1011 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1012 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1013 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1014 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
1015 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21);
1016 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20);
1017 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
1018 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
1019 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 24);
1020 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 25);
1021 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 26);
1022 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 27);
1023 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 28);
1024 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 29);
1026 static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg,
1027 store_in_reg, 0, 1);
1028 static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg,
1029 store_in_reg, 1, 1);
1030 static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg,
1031 store_in_reg, 2, 1);
1032 static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg,
1033 store_in_reg, 3, 1);
1034 static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg,
1035 store_in_reg, 4, 1);
1036 static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg,
1037 store_in_reg, 5, 1);
1038 static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg,
1039 store_in_reg, 6, 1);
1040 static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg,
1041 store_in_reg, 7, 1);
1042 static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg,
1043 store_in_reg, 8, 1);
1044 static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg,
1045 store_in_reg, 9, 1);
1046 static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg,
1047 store_in_reg, 10, 1);
1048 static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg,
1049 store_in_reg, 11, 1);
1050 static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg,
1051 store_in_reg, 12, 1);
1052 static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg,
1053 store_in_reg, 13, 1);
1054 static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg,
1055 store_in_reg, 14, 1);
1057 static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg,
1058 store_in_reg, 0, 2);
1059 static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg,
1060 store_in_reg, 1, 2);
1061 static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg,
1062 store_in_reg, 2, 2);
1063 static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg,
1064 store_in_reg, 3, 2);
1065 static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg,
1066 store_in_reg, 4, 2);
1067 static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg,
1068 store_in_reg, 5, 2);
1069 static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg,
1070 store_in_reg, 6, 2);
1071 static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg,
1072 store_in_reg, 7, 2);
1073 static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg,
1074 store_in_reg, 8, 2);
1075 static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg,
1076 store_in_reg, 9, 2);
1077 static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg,
1078 store_in_reg, 10, 2);
1079 static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg,
1080 store_in_reg, 11, 2);
1081 static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg,
1082 store_in_reg, 12, 2);
1083 static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg,
1084 store_in_reg, 13, 2);
1085 static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg,
1086 store_in_reg, 14, 2);
1088 static struct attribute *nct6775_attributes_in[15][5] = {
1090 &sensor_dev_attr_in0_input.dev_attr.attr,
1091 &sensor_dev_attr_in0_min.dev_attr.attr,
1092 &sensor_dev_attr_in0_max.dev_attr.attr,
1093 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1097 &sensor_dev_attr_in1_input.dev_attr.attr,
1098 &sensor_dev_attr_in1_min.dev_attr.attr,
1099 &sensor_dev_attr_in1_max.dev_attr.attr,
1100 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1104 &sensor_dev_attr_in2_input.dev_attr.attr,
1105 &sensor_dev_attr_in2_min.dev_attr.attr,
1106 &sensor_dev_attr_in2_max.dev_attr.attr,
1107 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1111 &sensor_dev_attr_in3_input.dev_attr.attr,
1112 &sensor_dev_attr_in3_min.dev_attr.attr,
1113 &sensor_dev_attr_in3_max.dev_attr.attr,
1114 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1118 &sensor_dev_attr_in4_input.dev_attr.attr,
1119 &sensor_dev_attr_in4_min.dev_attr.attr,
1120 &sensor_dev_attr_in4_max.dev_attr.attr,
1121 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1125 &sensor_dev_attr_in5_input.dev_attr.attr,
1126 &sensor_dev_attr_in5_min.dev_attr.attr,
1127 &sensor_dev_attr_in5_max.dev_attr.attr,
1128 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1132 &sensor_dev_attr_in6_input.dev_attr.attr,
1133 &sensor_dev_attr_in6_min.dev_attr.attr,
1134 &sensor_dev_attr_in6_max.dev_attr.attr,
1135 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1139 &sensor_dev_attr_in7_input.dev_attr.attr,
1140 &sensor_dev_attr_in7_min.dev_attr.attr,
1141 &sensor_dev_attr_in7_max.dev_attr.attr,
1142 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1146 &sensor_dev_attr_in8_input.dev_attr.attr,
1147 &sensor_dev_attr_in8_min.dev_attr.attr,
1148 &sensor_dev_attr_in8_max.dev_attr.attr,
1149 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1153 &sensor_dev_attr_in9_input.dev_attr.attr,
1154 &sensor_dev_attr_in9_min.dev_attr.attr,
1155 &sensor_dev_attr_in9_max.dev_attr.attr,
1156 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1160 &sensor_dev_attr_in10_input.dev_attr.attr,
1161 &sensor_dev_attr_in10_min.dev_attr.attr,
1162 &sensor_dev_attr_in10_max.dev_attr.attr,
1163 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1167 &sensor_dev_attr_in11_input.dev_attr.attr,
1168 &sensor_dev_attr_in11_min.dev_attr.attr,
1169 &sensor_dev_attr_in11_max.dev_attr.attr,
1170 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1174 &sensor_dev_attr_in12_input.dev_attr.attr,
1175 &sensor_dev_attr_in12_min.dev_attr.attr,
1176 &sensor_dev_attr_in12_max.dev_attr.attr,
1177 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1181 &sensor_dev_attr_in13_input.dev_attr.attr,
1182 &sensor_dev_attr_in13_min.dev_attr.attr,
1183 &sensor_dev_attr_in13_max.dev_attr.attr,
1184 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1188 &sensor_dev_attr_in14_input.dev_attr.attr,
1189 &sensor_dev_attr_in14_min.dev_attr.attr,
1190 &sensor_dev_attr_in14_max.dev_attr.attr,
1191 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1196 static const struct attribute_group nct6775_group_in[15] = {
1197 { .attrs = nct6775_attributes_in[0] },
1198 { .attrs = nct6775_attributes_in[1] },
1199 { .attrs = nct6775_attributes_in[2] },
1200 { .attrs = nct6775_attributes_in[3] },
1201 { .attrs = nct6775_attributes_in[4] },
1202 { .attrs = nct6775_attributes_in[5] },
1203 { .attrs = nct6775_attributes_in[6] },
1204 { .attrs = nct6775_attributes_in[7] },
1205 { .attrs = nct6775_attributes_in[8] },
1206 { .attrs = nct6775_attributes_in[9] },
1207 { .attrs = nct6775_attributes_in[10] },
1208 { .attrs = nct6775_attributes_in[11] },
1209 { .attrs = nct6775_attributes_in[12] },
1210 { .attrs = nct6775_attributes_in[13] },
1211 { .attrs = nct6775_attributes_in[14] },
1215 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1217 struct nct6775_data *data = nct6775_update_device(dev);
1218 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1219 int nr = sensor_attr->index;
1220 return sprintf(buf, "%d\n", data->rpm[nr]);
1224 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1226 struct nct6775_data *data = nct6775_update_device(dev);
1227 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1228 int nr = sensor_attr->index;
1229 return sprintf(buf, "%d\n",
1230 data->fan_from_reg_min(data->fan_min[nr],
1231 data->fan_div[nr]));
1235 show_fan_div(struct device *dev, struct device_attribute *attr,
1238 struct nct6775_data *data = nct6775_update_device(dev);
1239 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1240 int nr = sensor_attr->index;
1241 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1245 store_fan_min(struct device *dev, struct device_attribute *attr,
1246 const char *buf, size_t count)
1248 struct nct6775_data *data = dev_get_drvdata(dev);
1249 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1250 int nr = sensor_attr->index;
1256 err = kstrtoul(buf, 10, &val);
1260 mutex_lock(&data->update_lock);
1261 if (!data->has_fan_div) {
1263 * Only NCT6776F for now, so we know that this is a 13 bit
1271 val = 1350000U / val;
1272 val = (val & 0x1f) | ((val << 3) & 0xff00);
1274 data->fan_min[nr] = val;
1275 goto write_min; /* Leave fan divider alone */
1278 /* No min limit, alarm disabled */
1279 data->fan_min[nr] = 255;
1280 new_div = data->fan_div[nr]; /* No change */
1281 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1284 reg = 1350000U / val;
1285 if (reg >= 128 * 255) {
1287 * Speed below this value cannot possibly be represented,
1288 * even with the highest divider (128)
1290 data->fan_min[nr] = 254;
1291 new_div = 7; /* 128 == (1 << 7) */
1292 dev_warn(dev, "fan%u low limit %lu below minimum %u, set to "
1293 "minimum\n", nr + 1, val,
1294 data->fan_from_reg_min(254, 7));
1297 * Speed above this value cannot possibly be represented,
1298 * even with the lowest divider (1)
1300 data->fan_min[nr] = 1;
1301 new_div = 0; /* 1 == (1 << 0) */
1302 dev_warn(dev, "fan%u low limit %lu above maximum %u, set to "
1303 "maximum\n", nr + 1, val,
1304 data->fan_from_reg_min(1, 0));
1307 * Automatically pick the best divider, i.e. the one such
1308 * that the min limit will correspond to a register value
1309 * in the 96..192 range
1312 while (reg > 192 && new_div < 7) {
1316 data->fan_min[nr] = reg;
1321 * Write both the fan clock divider (if it changed) and the new
1322 * fan min (unconditionally)
1324 if (new_div != data->fan_div[nr]) {
1325 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1326 nr + 1, div_from_reg(data->fan_div[nr]),
1327 div_from_reg(new_div));
1328 data->fan_div[nr] = new_div;
1329 nct6775_write_fan_div_common(dev, data, nr);
1330 /* Give the chip time to sample a new speed value */
1331 data->last_updated = jiffies;
1334 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1336 mutex_unlock(&data->update_lock);
1341 static struct sensor_device_attribute sda_fan_input[] = {
1342 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
1343 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
1344 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
1345 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
1346 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
1349 static struct sensor_device_attribute sda_fan_alarm[] = {
1350 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
1351 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
1352 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
1353 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
1354 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
1357 static struct sensor_device_attribute sda_fan_min[] = {
1358 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
1360 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
1362 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
1364 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
1366 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
1370 static struct sensor_device_attribute sda_fan_div[] = {
1371 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
1372 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
1373 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
1374 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
1375 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
1379 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1381 struct nct6775_data *data = nct6775_update_device(dev);
1382 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1383 int nr = sensor_attr->index;
1384 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1388 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1390 struct nct6775_data *data = nct6775_update_device(dev);
1391 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1393 int index = sattr->index;
1395 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1399 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1402 struct nct6775_data *data = dev_get_drvdata(dev);
1403 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1405 int index = sattr->index;
1409 err = kstrtol(buf, 10, &val);
1413 mutex_lock(&data->update_lock);
1414 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1415 nct6775_write_temp(data, data->reg_temp[index][nr],
1416 data->temp[index][nr]);
1417 mutex_unlock(&data->update_lock);
1422 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1424 struct nct6775_data *data = nct6775_update_device(dev);
1425 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1427 return sprintf(buf, "%d\n", data->temp_offset[sensor_attr->index] * 1000);
1431 store_temp_offset(struct device *dev, struct device_attribute *attr,
1432 const char *buf, size_t count)
1434 struct nct6775_data *data = dev_get_drvdata(dev);
1435 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1436 int nr = sensor_attr->index;
1440 err = kstrtol(buf, 10, &val);
1444 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1446 mutex_lock(&data->update_lock);
1447 data->temp_offset[nr] = val;
1448 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
1449 mutex_unlock(&data->update_lock);
1455 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
1457 struct nct6775_data *data = nct6775_update_device(dev);
1458 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1459 int nr = sensor_attr->index;
1460 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
1463 static struct sensor_device_attribute_2 sda_temp_input[] = {
1464 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
1465 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
1466 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0),
1467 SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0),
1468 SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0),
1469 SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0),
1472 static struct sensor_device_attribute sda_temp_label[] = {
1473 SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
1474 SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
1475 SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
1476 SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
1477 SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
1478 SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
1481 static struct sensor_device_attribute_2 sda_temp_max[] = {
1482 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1484 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1486 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1488 SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1490 SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1492 SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1496 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1497 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1499 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1501 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1503 SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1505 SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1507 SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1511 static struct sensor_device_attribute sda_temp_offset[] = {
1512 SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1513 store_temp_offset, 0),
1514 SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1515 store_temp_offset, 1),
1516 SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1517 store_temp_offset, 2),
1520 static struct sensor_device_attribute sda_temp_alarm[] = {
1521 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
1522 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
1523 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
1526 static struct sensor_device_attribute sda_temp_type[] = {
1527 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
1528 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
1529 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
1533 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
1535 struct nct6775_data *data = nct6775_update_device(dev);
1536 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1538 return sprintf(buf, "%d\n", !data->pwm_mode[sensor_attr->index]);
1542 store_pwm_mode(struct device *dev, struct device_attribute *attr,
1543 const char *buf, size_t count)
1545 struct nct6775_data *data = dev_get_drvdata(dev);
1546 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1547 int nr = sensor_attr->index;
1552 err = kstrtoul(buf, 10, &val);
1559 /* Setting DC mode is not supported for all chips/channels */
1560 if (data->REG_PWM_MODE[nr] == 0) {
1566 mutex_lock(&data->update_lock);
1567 data->pwm_mode[nr] = val;
1568 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
1569 reg &= ~data->PWM_MODE_MASK[nr];
1571 reg |= data->PWM_MODE_MASK[nr];
1572 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
1573 mutex_unlock(&data->update_lock);
1578 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1580 struct nct6775_data *data = nct6775_update_device(dev);
1581 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1583 return sprintf(buf, "%d\n", data->pwm_enable[sensor_attr->index]);
1587 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1589 struct nct6775_data *data = nct6775_update_device(dev);
1590 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1592 int index = sattr->index;
1596 * For automatic fan control modes, show current pwm readings.
1597 * Otherwise, show the configured value.
1599 if (index == 0 && data->pwm_enable[nr] > 1)
1600 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
1602 pwm = data->pwm[index][nr];
1604 return sprintf(buf, "%d\n", pwm);
1608 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
1611 struct nct6775_data *data = dev_get_drvdata(dev);
1612 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1614 int index = sattr->index;
1618 err = kstrtoul(buf, 10, &val);
1621 if (val > 255 || (index && val == 0))
1624 mutex_lock(&data->update_lock);
1625 data->pwm[index][nr] = val;
1626 nct6775_write_value(data, data->REG_PWM[index][nr], val);
1627 mutex_unlock(&data->update_lock);
1631 /* Returns 0 if OK, -EINVAL otherwise */
1632 static int check_trip_points(struct nct6775_data *data, int nr)
1636 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1637 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
1640 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1641 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
1644 /* validate critical temperature and pwm if enabled (pwm > 0) */
1645 if (data->auto_pwm[nr][data->auto_pwm_num]) {
1646 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
1647 data->auto_temp[nr][data->auto_pwm_num] ||
1648 data->auto_pwm[nr][data->auto_pwm_num - 1] >
1649 data->auto_pwm[nr][data->auto_pwm_num])
1656 store_pwm_enable(struct device *dev, struct device_attribute *attr,
1657 const char *buf, size_t count)
1659 struct nct6775_data *data = dev_get_drvdata(dev);
1660 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1661 int nr = sensor_attr->index;
1666 err = kstrtoul(buf, 10, &val);
1673 if (val == 4 && check_trip_points(data, nr)) {
1674 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
1675 dev_err(dev, "Adjust trip points and try again\n");
1679 mutex_lock(&data->update_lock);
1680 data->pwm_enable[nr] = val;
1683 * turn off pwm control: select manual mode, set pwm to maximum
1685 data->pwm[0][nr] = 255;
1686 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
1688 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1690 reg |= (pwm_enable_to_reg(val) << 4);
1691 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1692 mutex_unlock(&data->update_lock);
1697 show_pwm_temp(struct device *dev, struct device_attribute *attr, char *buf)
1699 struct nct6775_data *data = nct6775_update_device(dev);
1700 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1701 int nr = sattr->index;
1703 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->pwm_temp[nr]));
1707 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
1709 struct nct6775_data *data = nct6775_update_device(dev);
1710 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1712 return sprintf(buf, "%d\n",
1713 data->pwm_temp_sel[sattr->index][sattr->nr]);
1717 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
1718 const char *buf, size_t count)
1720 struct nct6775_data *data = nct6775_update_device(dev);
1721 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1723 int index = sattr->index;
1727 static const int max_src[] = {
1728 ARRAY_SIZE(nct6775_temp_label),
1729 ARRAY_SIZE(nct6776_temp_label),
1730 ARRAY_SIZE(nct6779_temp_label)
1733 err = kstrtoul(buf, 10, &val);
1736 if (val == 0 || val > 0x1f)
1739 val = SENSORS_LIMIT(val, 1, max_src[data->kind]);
1741 if (!strlen(data->temp_label[val]))
1744 mutex_lock(&data->update_lock);
1745 data->pwm_temp_sel[index][nr] = val;
1746 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
1749 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
1750 mutex_unlock(&data->update_lock);
1756 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
1758 struct nct6775_data *data = nct6775_update_device(dev);
1759 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1761 return sprintf(buf, "%d\n",
1762 data->target_temp[sensor_attr->index] * 1000);
1766 store_target_temp(struct device *dev, struct device_attribute *attr,
1767 const char *buf, size_t count)
1769 struct nct6775_data *data = dev_get_drvdata(dev);
1770 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1771 int nr = sensor_attr->index;
1775 err = kstrtol(buf, 10, &val);
1779 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
1781 mutex_lock(&data->update_lock);
1782 data->target_temp[nr] = val;
1783 nct6775_write_value(data, data->REG_TARGET[nr], val);
1784 mutex_unlock(&data->update_lock);
1789 show_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1792 struct nct6775_data *data = nct6775_update_device(dev);
1793 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1795 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1796 int tolerance = data->tolerance[nr][point];
1797 int temp = data->auto_temp[nr][sattr->index];
1799 return sprintf(buf, "%d\n", (temp - tolerance) * 1000);
1803 store_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1804 const char *buf, size_t count)
1806 struct nct6775_data *data = dev_get_drvdata(dev);
1807 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1809 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1813 int maxlimit[2][3] = { { 15, 7, 63 }, { 15, 7, 7 } };
1814 int mask[] = { 0x0f, 0x07, 0x07 };
1817 err = kstrtol(buf, 10, &val);
1821 temp = data->auto_temp[nr][sattr->index];
1822 val = temp - DIV_ROUND_CLOSEST(val, 1000);
1824 /* Limit tolerance as needed */
1825 val = SENSORS_LIMIT(val, 0, maxlimit[point][data->kind]);
1827 mutex_lock(&data->update_lock);
1829 nct6775_write_value(data,
1830 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
1833 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1834 reg = (reg & ~mask[nr]) | (val & mask[nr]);
1835 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1836 if (data->kind == nct6779) {
1837 reg = nct6775_read_value(data,
1838 NCT6779_REG_TOLERANCE_H[nr]);
1839 reg = (reg & 0x70) | ((val & 0x38) << 1);
1840 nct6775_write_value(data,
1841 NCT6779_REG_TOLERANCE_H[nr], reg);
1845 data->tolerance[nr][point] = val;
1846 mutex_unlock(&data->update_lock);
1850 static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
1851 static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
1852 static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
1853 static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0);
1854 static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0);
1856 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1858 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1860 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1862 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1864 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1867 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1868 store_pwm_enable, 0);
1869 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1870 store_pwm_enable, 1);
1871 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1872 store_pwm_enable, 2);
1873 static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1874 store_pwm_enable, 3);
1875 static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1876 store_pwm_enable, 4);
1878 static SENSOR_DEVICE_ATTR_2(pwm1_temp_sel, S_IWUSR | S_IRUGO,
1879 show_pwm_temp_sel, store_pwm_temp_sel, 0, 0);
1880 static SENSOR_DEVICE_ATTR_2(pwm2_temp_sel, S_IWUSR | S_IRUGO,
1881 show_pwm_temp_sel, store_pwm_temp_sel, 1, 0);
1882 static SENSOR_DEVICE_ATTR_2(pwm3_temp_sel, S_IWUSR | S_IRUGO,
1883 show_pwm_temp_sel, store_pwm_temp_sel, 2, 0);
1884 static SENSOR_DEVICE_ATTR_2(pwm4_temp_sel, S_IWUSR | S_IRUGO,
1885 show_pwm_temp_sel, store_pwm_temp_sel, 3, 0);
1886 static SENSOR_DEVICE_ATTR_2(pwm5_temp_sel, S_IWUSR | S_IRUGO,
1887 show_pwm_temp_sel, store_pwm_temp_sel, 4, 0);
1889 static SENSOR_DEVICE_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1890 store_target_temp, 0);
1891 static SENSOR_DEVICE_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1892 store_target_temp, 1);
1893 static SENSOR_DEVICE_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1894 store_target_temp, 2);
1895 static SENSOR_DEVICE_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1896 store_target_temp, 3);
1897 static SENSOR_DEVICE_ATTR(pwm5_target, S_IWUSR | S_IRUGO, show_target_temp,
1898 store_target_temp, 4);
1900 /* Monitored pwm temperatures */
1901 static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_pwm_temp, NULL, 0);
1902 static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_pwm_temp, NULL, 1);
1903 static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_pwm_temp, NULL, 2);
1904 static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_pwm_temp, NULL, 3);
1905 static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, show_pwm_temp, NULL, 4);
1907 /* Smart Fan registers */
1910 show_pwm_weight_enable(struct device *dev, struct device_attribute *attr,
1913 struct nct6775_data *data = nct6775_update_device(dev);
1914 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1916 return sprintf(buf, "%d\n", data->pwm_weight_enable[sattr->index]);
1920 store_pwm_weight_enable(struct device *dev, struct device_attribute *attr,
1921 const char *buf, size_t count)
1923 struct nct6775_data *data = dev_get_drvdata(dev);
1924 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1925 int nr = sensor_attr->index;
1930 err = kstrtoul(buf, 10, &val);
1937 mutex_lock(&data->update_lock);
1938 data->pwm_weight_enable[nr] = val;
1939 reg = nct6775_read_value(data, data->REG_TEMP_SEL[1][nr]);
1943 nct6775_write_value(data, data->REG_TEMP_SEL[1][nr], reg);
1944 mutex_unlock(&data->update_lock);
1949 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
1951 struct nct6775_data *data = nct6775_update_device(dev);
1952 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1954 int index = sattr->index;
1956 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
1960 store_weight_temp(struct device *dev, struct device_attribute *attr,
1961 const char *buf, size_t count)
1963 struct nct6775_data *data = dev_get_drvdata(dev);
1964 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1966 int index = sattr->index;
1970 err = kstrtoul(buf, 10, &val);
1974 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
1976 mutex_lock(&data->update_lock);
1977 data->weight_temp[index][nr] = val;
1978 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
1979 mutex_unlock(&data->update_lock);
1984 show_weight_duty(struct device *dev, struct device_attribute *attr, char *buf)
1986 struct nct6775_data *data = nct6775_update_device(dev);
1987 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1989 int index = sattr->index;
1991 return sprintf(buf, "%d\n", data->weight_duty[index][nr]);
1995 store_weight_duty(struct device *dev, struct device_attribute *attr,
1996 const char *buf, size_t count)
1998 struct nct6775_data *data = dev_get_drvdata(dev);
1999 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2001 int index = sattr->index;
2005 err = kstrtoul(buf, 10, &val);
2009 val = SENSORS_LIMIT(val, 0, 255);
2011 mutex_lock(&data->update_lock);
2012 data->weight_duty[index][nr] = val;
2013 nct6775_write_value(data, data->REG_WEIGHT_DUTY[index][nr], val);
2014 mutex_unlock(&data->update_lock);
2018 static SENSOR_DEVICE_ATTR(pwm1_weight_enable, S_IWUSR | S_IRUGO,
2019 show_pwm_weight_enable, store_pwm_weight_enable, 0);
2020 static SENSOR_DEVICE_ATTR(pwm2_weight_enable, S_IWUSR | S_IRUGO,
2021 show_pwm_weight_enable, store_pwm_weight_enable, 1);
2022 static SENSOR_DEVICE_ATTR(pwm3_weight_enable, S_IWUSR | S_IRUGO,
2023 show_pwm_weight_enable, store_pwm_weight_enable, 2);
2024 static SENSOR_DEVICE_ATTR(pwm4_weight_enable, S_IWUSR | S_IRUGO,
2025 show_pwm_weight_enable, store_pwm_weight_enable, 3);
2026 static SENSOR_DEVICE_ATTR(pwm5_weight_enable, S_IWUSR | S_IRUGO,
2027 show_pwm_weight_enable, store_pwm_weight_enable, 4);
2029 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO,
2030 show_pwm_temp_sel, store_pwm_temp_sel, 0, 1);
2031 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO,
2032 show_pwm_temp_sel, store_pwm_temp_sel, 1, 1);
2033 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO,
2034 show_pwm_temp_sel, store_pwm_temp_sel, 2, 1);
2035 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO,
2036 show_pwm_temp_sel, store_pwm_temp_sel, 3, 1);
2037 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO,
2038 show_pwm_temp_sel, store_pwm_temp_sel, 4, 1);
2040 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO,
2041 show_weight_temp, store_weight_temp, 0, 0);
2042 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO,
2043 show_weight_temp, store_weight_temp, 1, 0);
2044 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO,
2045 show_weight_temp, store_weight_temp, 2, 0);
2046 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO,
2047 show_weight_temp, store_weight_temp, 3, 0);
2048 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO,
2049 show_weight_temp, store_weight_temp, 4, 0);
2051 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2052 show_weight_temp, store_weight_temp, 0, 1);
2053 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2054 show_weight_temp, store_weight_temp, 1, 1);
2055 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2056 show_weight_temp, store_weight_temp, 2, 1);
2057 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2058 show_weight_temp, store_weight_temp, 3, 1);
2059 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2060 show_weight_temp, store_weight_temp, 4, 1);
2062 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO,
2063 show_weight_temp, store_weight_temp, 0, 2);
2064 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO,
2065 show_weight_temp, store_weight_temp, 1, 2);
2066 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO,
2067 show_weight_temp, store_weight_temp, 2, 2);
2068 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO,
2069 show_weight_temp, store_weight_temp, 3, 2);
2070 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO,
2071 show_weight_temp, store_weight_temp, 4, 2);
2073 static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO,
2074 show_weight_duty, store_weight_duty, 0, 0);
2075 static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO,
2076 show_weight_duty, store_weight_duty, 1, 0);
2077 static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO,
2078 show_weight_duty, store_weight_duty, 2, 0);
2079 static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO,
2080 show_weight_duty, store_weight_duty, 3, 0);
2081 static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO,
2082 show_weight_duty, store_weight_duty, 4, 0);
2084 /* duty_base is not supported on all chips */
2085 static struct sensor_device_attribute_2 sda_weight_duty_base[] = {
2086 SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO,
2087 show_weight_duty, store_weight_duty, 0, 1),
2088 SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO,
2089 show_weight_duty, store_weight_duty, 1, 1),
2090 SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO,
2091 show_weight_duty, store_weight_duty, 2, 1),
2092 SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO,
2093 show_weight_duty, store_weight_duty, 3, 1),
2094 SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO,
2095 show_weight_duty, store_weight_duty, 4, 1),
2099 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2101 struct nct6775_data *data = nct6775_update_device(dev);
2102 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2104 int index = sattr->index;
2106 return sprintf(buf, "%d\n",
2107 step_time_from_reg(data->fan_time[index][nr],
2108 data->pwm_mode[nr]));
2112 store_fan_time(struct device *dev, struct device_attribute *attr,
2113 const char *buf, size_t count)
2115 struct nct6775_data *data = dev_get_drvdata(dev);
2116 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2118 int index = sattr->index;
2122 err = kstrtoul(buf, 10, &val);
2126 val = step_time_to_reg(val, data->pwm_mode[nr]);
2127 mutex_lock(&data->update_lock);
2128 data->fan_time[index][nr] = val;
2129 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2130 mutex_unlock(&data->update_lock);
2134 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
2137 struct nct6775_data *data = dev_get_drvdata(dev);
2139 return sprintf(buf, "%s\n", data->name);
2141 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
2143 static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2144 store_fan_time, 0, 0);
2145 static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2146 store_fan_time, 1, 0);
2147 static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2148 store_fan_time, 2, 0);
2149 static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2150 store_fan_time, 3, 0);
2151 static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2152 store_fan_time, 4, 0);
2154 static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2155 store_fan_time, 0, 1);
2156 static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2157 store_fan_time, 1, 1);
2158 static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2159 store_fan_time, 2, 1);
2160 static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2161 store_fan_time, 3, 1);
2162 static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2163 store_fan_time, 4, 1);
2165 static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
2166 show_fan_time, store_fan_time, 0, 2);
2167 static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
2168 show_fan_time, store_fan_time, 1, 2);
2169 static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
2170 show_fan_time, store_fan_time, 2, 2);
2171 static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
2172 show_fan_time, store_fan_time, 3, 2);
2173 static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
2174 show_fan_time, store_fan_time, 4, 2);
2176 static SENSOR_DEVICE_ATTR_2(pwm1_start_output, S_IWUSR | S_IRUGO, show_pwm,
2178 static SENSOR_DEVICE_ATTR_2(pwm2_start_output, S_IWUSR | S_IRUGO, show_pwm,
2180 static SENSOR_DEVICE_ATTR_2(pwm3_start_output, S_IWUSR | S_IRUGO, show_pwm,
2182 static SENSOR_DEVICE_ATTR_2(pwm4_start_output, S_IWUSR | S_IRUGO, show_pwm,
2184 static SENSOR_DEVICE_ATTR_2(pwm5_start_output, S_IWUSR | S_IRUGO, show_pwm,
2187 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2189 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2191 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2193 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2195 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2198 static struct attribute *nct6775_attributes_pwm[5][19] = {
2200 &sensor_dev_attr_temp7_input.dev_attr.attr,
2201 &sensor_dev_attr_pwm1.dev_attr.attr,
2202 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
2203 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2204 &sensor_dev_attr_pwm1_weight_enable.dev_attr.attr,
2205 &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr,
2206 &sensor_dev_attr_pwm1_target.dev_attr.attr,
2207 &sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
2208 &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
2209 &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
2210 &sensor_dev_attr_pwm1_start_output.dev_attr.attr,
2211 &sensor_dev_attr_pwm1_stop_output.dev_attr.attr,
2212 &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr,
2213 &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr,
2214 &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr,
2215 &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr,
2216 &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr,
2220 &sensor_dev_attr_temp8_input.dev_attr.attr,
2221 &sensor_dev_attr_pwm2.dev_attr.attr,
2222 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
2223 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2224 &sensor_dev_attr_pwm2_weight_enable.dev_attr.attr,
2225 &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr,
2226 &sensor_dev_attr_pwm2_target.dev_attr.attr,
2227 &sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
2228 &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
2229 &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
2230 &sensor_dev_attr_pwm2_start_output.dev_attr.attr,
2231 &sensor_dev_attr_pwm2_stop_output.dev_attr.attr,
2232 &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr,
2233 &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr,
2234 &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr,
2235 &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr,
2236 &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr,
2240 &sensor_dev_attr_temp9_input.dev_attr.attr,
2241 &sensor_dev_attr_pwm3.dev_attr.attr,
2242 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
2243 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
2244 &sensor_dev_attr_pwm3_weight_enable.dev_attr.attr,
2245 &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr,
2246 &sensor_dev_attr_pwm3_target.dev_attr.attr,
2247 &sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
2248 &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
2249 &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
2250 &sensor_dev_attr_pwm3_start_output.dev_attr.attr,
2251 &sensor_dev_attr_pwm3_stop_output.dev_attr.attr,
2252 &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr,
2253 &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr,
2254 &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr,
2255 &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr,
2256 &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr,
2260 &sensor_dev_attr_temp10_input.dev_attr.attr,
2261 &sensor_dev_attr_pwm4.dev_attr.attr,
2262 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
2263 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
2264 &sensor_dev_attr_pwm4_weight_enable.dev_attr.attr,
2265 &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr,
2266 &sensor_dev_attr_pwm4_target.dev_attr.attr,
2267 &sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
2268 &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
2269 &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
2270 &sensor_dev_attr_pwm4_start_output.dev_attr.attr,
2271 &sensor_dev_attr_pwm4_stop_output.dev_attr.attr,
2272 &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr,
2273 &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr,
2274 &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr,
2275 &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr,
2276 &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr,
2280 &sensor_dev_attr_temp11_input.dev_attr.attr,
2281 &sensor_dev_attr_pwm5.dev_attr.attr,
2282 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
2283 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
2284 &sensor_dev_attr_pwm5_weight_enable.dev_attr.attr,
2285 &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr,
2286 &sensor_dev_attr_pwm5_target.dev_attr.attr,
2287 &sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
2288 &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
2289 &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
2290 &sensor_dev_attr_pwm5_start_output.dev_attr.attr,
2291 &sensor_dev_attr_pwm5_stop_output.dev_attr.attr,
2292 &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr,
2293 &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr,
2294 &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr,
2295 &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr,
2296 &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr,
2301 static const struct attribute_group nct6775_group_pwm[5] = {
2302 { .attrs = nct6775_attributes_pwm[0] },
2303 { .attrs = nct6775_attributes_pwm[1] },
2304 { .attrs = nct6775_attributes_pwm[2] },
2305 { .attrs = nct6775_attributes_pwm[3] },
2306 { .attrs = nct6775_attributes_pwm[4] },
2309 static ssize_t show_auto_pwm(struct device *dev, struct device_attribute *attr,
2312 struct nct6775_data *data = nct6775_update_device(dev);
2313 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2315 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2318 static ssize_t store_auto_pwm(struct device *dev, struct device_attribute *attr,
2319 const char *buf, size_t count)
2321 struct nct6775_data *data = dev_get_drvdata(dev);
2322 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2324 int point = sattr->index;
2329 err = kstrtoul(buf, 10, &val);
2335 if (point == data->auto_pwm_num) {
2336 if (data->kind != nct6775 && !val)
2338 if (data->kind != nct6779 && val)
2342 mutex_lock(&data->update_lock);
2343 data->auto_pwm[nr][point] = val;
2344 if (point < data->auto_pwm_num) {
2345 nct6775_write_value(data,
2346 NCT6775_AUTO_PWM(data, nr, point),
2347 data->auto_pwm[nr][point]);
2349 switch (data->kind) {
2351 /* disable if needed (pwm == 0) */
2352 reg = nct6775_read_value(data,
2353 NCT6775_REG_CRITICAL_ENAB[nr]);
2358 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2362 break; /* always enabled, nothing to do */
2364 nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
2366 reg = nct6775_read_value(data,
2367 NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
2372 nct6775_write_value(data,
2373 NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
2378 mutex_unlock(&data->update_lock);
2382 static ssize_t show_auto_temp(struct device *dev, struct device_attribute *attr,
2385 struct nct6775_data *data = nct6775_update_device(dev);
2386 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2388 int point = sattr->index;
2391 * We don't know for sure if the temperature is signed or unsigned.
2392 * Assume it is unsigned.
2394 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2397 static ssize_t store_auto_temp(struct device *dev,
2398 struct device_attribute *attr,
2399 const char *buf, size_t count)
2401 struct nct6775_data *data = dev_get_drvdata(dev);
2402 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2404 int point = sattr->index;
2408 err = kstrtoul(buf, 10, &val);
2414 mutex_lock(&data->update_lock);
2415 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2416 if (point < data->auto_pwm_num) {
2417 nct6775_write_value(data,
2418 NCT6775_AUTO_TEMP(data, nr, point),
2419 data->auto_temp[nr][point]);
2421 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2422 data->auto_temp[nr][point]);
2424 mutex_unlock(&data->update_lock);
2429 * The number of auto-point trip points is chip dependent.
2430 * Need to check support while generating/removing attribute files.
2432 static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
2433 SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
2434 show_auto_pwm, store_auto_pwm, 0, 0),
2435 SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
2436 show_auto_temp, store_auto_temp, 0, 0),
2437 SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2438 show_auto_temp_hyst, store_auto_temp_hyst, 0, 0),
2439 SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
2440 show_auto_pwm, store_auto_pwm, 0, 1),
2441 SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
2442 show_auto_temp, store_auto_temp, 0, 1),
2443 SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2444 show_auto_temp_hyst, store_auto_temp_hyst, 0, 1),
2445 SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
2446 show_auto_pwm, store_auto_pwm, 0, 2),
2447 SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
2448 show_auto_temp, store_auto_temp, 0, 2),
2449 SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2450 show_auto_temp_hyst, store_auto_temp_hyst, 0, 2),
2451 SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
2452 show_auto_pwm, store_auto_pwm, 0, 3),
2453 SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
2454 show_auto_temp, store_auto_temp, 0, 3),
2455 SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2456 show_auto_temp_hyst, store_auto_temp_hyst, 0, 3),
2457 SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
2458 show_auto_pwm, store_auto_pwm, 0, 4),
2459 SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
2460 show_auto_temp, store_auto_temp, 0, 4),
2461 SENSOR_ATTR_2(pwm1_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2462 show_auto_temp_hyst, store_auto_temp_hyst, 0, 4),
2463 SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
2464 show_auto_pwm, store_auto_pwm, 0, 5),
2465 SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
2466 show_auto_temp, store_auto_temp, 0, 5),
2467 SENSOR_ATTR_2(pwm1_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2468 show_auto_temp_hyst, store_auto_temp_hyst, 0, 5),
2469 SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
2470 show_auto_pwm, store_auto_pwm, 0, 6),
2471 SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
2472 show_auto_temp, store_auto_temp, 0, 6),
2473 SENSOR_ATTR_2(pwm1_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2474 show_auto_temp_hyst, store_auto_temp_hyst, 0, 6),
2476 SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
2477 show_auto_pwm, store_auto_pwm, 1, 0),
2478 SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
2479 show_auto_temp, store_auto_temp, 1, 0),
2480 SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2481 show_auto_temp_hyst, store_auto_temp_hyst, 1, 0),
2482 SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
2483 show_auto_pwm, store_auto_pwm, 1, 1),
2484 SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
2485 show_auto_temp, store_auto_temp, 1, 1),
2486 SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2487 show_auto_temp_hyst, store_auto_temp_hyst, 1, 1),
2488 SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
2489 show_auto_pwm, store_auto_pwm, 1, 2),
2490 SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
2491 show_auto_temp, store_auto_temp, 1, 2),
2492 SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2493 show_auto_temp_hyst, store_auto_temp_hyst, 1, 2),
2494 SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
2495 show_auto_pwm, store_auto_pwm, 1, 3),
2496 SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
2497 show_auto_temp, store_auto_temp, 1, 3),
2498 SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2499 show_auto_temp_hyst, store_auto_temp_hyst, 1, 3),
2500 SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
2501 show_auto_pwm, store_auto_pwm, 1, 4),
2502 SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
2503 show_auto_temp, store_auto_temp, 1, 4),
2504 SENSOR_ATTR_2(pwm2_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2505 show_auto_temp_hyst, store_auto_temp_hyst, 1, 4),
2506 SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
2507 show_auto_pwm, store_auto_pwm, 1, 5),
2508 SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
2509 show_auto_temp, store_auto_temp, 1, 5),
2510 SENSOR_ATTR_2(pwm2_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2511 show_auto_temp_hyst, store_auto_temp_hyst, 1, 5),
2512 SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
2513 show_auto_pwm, store_auto_pwm, 1, 6),
2514 SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
2515 show_auto_temp, store_auto_temp, 1, 6),
2516 SENSOR_ATTR_2(pwm2_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2517 show_auto_temp_hyst, store_auto_temp_hyst, 1, 6),
2519 SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
2520 show_auto_pwm, store_auto_pwm, 2, 0),
2521 SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
2522 show_auto_temp, store_auto_temp, 2, 0),
2523 SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2524 show_auto_temp_hyst, store_auto_temp_hyst, 2, 0),
2525 SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
2526 show_auto_pwm, store_auto_pwm, 2, 1),
2527 SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
2528 show_auto_temp, store_auto_temp, 2, 1),
2529 SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2530 show_auto_temp_hyst, store_auto_temp_hyst, 2, 1),
2531 SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
2532 show_auto_pwm, store_auto_pwm, 2, 2),
2533 SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
2534 show_auto_temp, store_auto_temp, 2, 2),
2535 SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2536 show_auto_temp_hyst, store_auto_temp_hyst, 2, 2),
2537 SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
2538 show_auto_pwm, store_auto_pwm, 2, 3),
2539 SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
2540 show_auto_temp, store_auto_temp, 2, 3),
2541 SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2542 show_auto_temp_hyst, store_auto_temp_hyst, 2, 3),
2543 SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
2544 show_auto_pwm, store_auto_pwm, 2, 4),
2545 SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
2546 show_auto_temp, store_auto_temp, 2, 4),
2547 SENSOR_ATTR_2(pwm3_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2548 show_auto_temp_hyst, store_auto_temp_hyst, 2, 4),
2549 SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
2550 show_auto_pwm, store_auto_pwm, 2, 5),
2551 SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
2552 show_auto_temp, store_auto_temp, 2, 5),
2553 SENSOR_ATTR_2(pwm3_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2554 show_auto_temp_hyst, store_auto_temp_hyst, 2, 5),
2555 SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
2556 show_auto_pwm, store_auto_pwm, 2, 6),
2557 SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
2558 show_auto_temp, store_auto_temp, 2, 6),
2559 SENSOR_ATTR_2(pwm3_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2560 show_auto_temp_hyst, store_auto_temp_hyst, 2, 6),
2562 SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
2563 show_auto_pwm, store_auto_pwm, 3, 0),
2564 SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
2565 show_auto_temp, store_auto_temp, 3, 0),
2566 SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2567 show_auto_temp_hyst, store_auto_temp_hyst, 3, 0),
2568 SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
2569 show_auto_pwm, store_auto_pwm, 3, 1),
2570 SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
2571 show_auto_temp, store_auto_temp, 3, 1),
2572 SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2573 show_auto_temp_hyst, store_auto_temp_hyst, 3, 1),
2574 SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
2575 show_auto_pwm, store_auto_pwm, 3, 2),
2576 SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
2577 show_auto_temp, store_auto_temp, 3, 2),
2578 SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2579 show_auto_temp_hyst, store_auto_temp_hyst, 3, 2),
2580 SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
2581 show_auto_pwm, store_auto_pwm, 3, 3),
2582 SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
2583 show_auto_temp, store_auto_temp, 3, 3),
2584 SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2585 show_auto_temp_hyst, store_auto_temp_hyst, 3, 3),
2586 SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
2587 show_auto_pwm, store_auto_pwm, 3, 4),
2588 SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
2589 show_auto_temp, store_auto_temp, 3, 4),
2590 SENSOR_ATTR_2(pwm4_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2591 show_auto_temp_hyst, store_auto_temp_hyst, 3, 4),
2592 SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
2593 show_auto_pwm, store_auto_pwm, 3, 5),
2594 SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
2595 show_auto_temp, store_auto_temp, 3, 5),
2596 SENSOR_ATTR_2(pwm4_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2597 show_auto_temp_hyst, store_auto_temp_hyst, 3, 5),
2598 SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
2599 show_auto_pwm, store_auto_pwm, 3, 6),
2600 SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
2601 show_auto_temp, store_auto_temp, 3, 6),
2602 SENSOR_ATTR_2(pwm4_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2603 show_auto_temp_hyst, store_auto_temp_hyst, 3, 6),
2605 SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
2606 show_auto_pwm, store_auto_pwm, 4, 0),
2607 SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
2608 show_auto_temp, store_auto_temp, 4, 0),
2609 SENSOR_ATTR_2(pwm5_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2610 show_auto_temp_hyst, store_auto_temp_hyst, 4, 0),
2611 SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
2612 show_auto_pwm, store_auto_pwm, 4, 1),
2613 SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
2614 show_auto_temp, store_auto_temp, 4, 1),
2615 SENSOR_ATTR_2(pwm5_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2616 show_auto_temp_hyst, store_auto_temp_hyst, 4, 1),
2617 SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
2618 show_auto_pwm, store_auto_pwm, 4, 2),
2619 SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
2620 show_auto_temp, store_auto_temp, 4, 2),
2621 SENSOR_ATTR_2(pwm5_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2622 show_auto_temp_hyst, store_auto_temp_hyst, 4, 2),
2623 SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
2624 show_auto_pwm, store_auto_pwm, 4, 3),
2625 SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
2626 show_auto_temp, store_auto_temp, 4, 3),
2627 SENSOR_ATTR_2(pwm5_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2628 show_auto_temp_hyst, store_auto_temp_hyst, 4, 3),
2629 SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
2630 show_auto_pwm, store_auto_pwm, 4, 4),
2631 SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
2632 show_auto_temp, store_auto_temp, 4, 4),
2633 SENSOR_ATTR_2(pwm5_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2634 show_auto_temp_hyst, store_auto_temp_hyst, 4, 4),
2635 SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
2636 show_auto_pwm, store_auto_pwm, 4, 5),
2637 SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
2638 show_auto_temp, store_auto_temp, 4, 5),
2639 SENSOR_ATTR_2(pwm5_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2640 show_auto_temp_hyst, store_auto_temp_hyst, 4, 5),
2641 SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
2642 show_auto_pwm, store_auto_pwm, 4, 6),
2643 SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
2644 show_auto_temp, store_auto_temp, 4, 6),
2645 SENSOR_ATTR_2(pwm5_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2646 show_auto_temp_hyst, store_auto_temp_hyst, 4, 6),
2650 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
2652 struct nct6775_data *data = dev_get_drvdata(dev);
2653 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
2655 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
2658 /* Case open detection */
2661 show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
2663 struct nct6775_data *data = nct6775_update_device(dev);
2665 return sprintf(buf, "%d\n",
2666 !!(data->caseopen & to_sensor_dev_attr_2(attr)->index));
2670 clear_caseopen(struct device *dev, struct device_attribute *attr,
2671 const char *buf, size_t count)
2673 struct nct6775_data *data = dev_get_drvdata(dev);
2674 struct nct6775_sio_data *sio_data = dev->platform_data;
2675 int nr = to_sensor_dev_attr(attr)->index;
2679 if (kstrtoul(buf, 10, &val) || val != 0)
2682 mutex_lock(&data->update_lock);
2685 * Use CR registers to clear caseopen status.
2686 * The CR registers are the same for all chips, and not all chips
2687 * support clearing the caseopen status through "regular" registers.
2689 superio_enter(sio_data->sioreg);
2690 superio_select(sio_data->sioreg, NCT6775_LD_ACPI);
2691 reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
2692 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2693 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2694 superio_exit(sio_data->sioreg);
2696 data->valid = 0; /* Force cache refresh */
2698 mutex_unlock(&data->update_lock);
2703 static struct sensor_device_attribute sda_caseopen[] = {
2704 SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2706 SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen,
2711 * Driver and device management
2714 static void nct6775_device_remove_files(struct device *dev)
2717 * some entries in the following arrays may not have been used in
2718 * device_create_file(), but device_remove_file() will ignore them
2721 struct nct6775_data *data = dev_get_drvdata(dev);
2723 for (i = 0; i < data->pwm_num; i++)
2724 sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
2726 for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++)
2727 device_remove_file(dev, &sda_weight_duty_base[i].dev_attr);
2729 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)
2730 device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
2732 for (i = 0; i < data->in_num; i++)
2733 sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
2735 for (i = 0; i < 5; i++) {
2736 device_remove_file(dev, &sda_fan_input[i].dev_attr);
2737 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
2738 device_remove_file(dev, &sda_fan_div[i].dev_attr);
2739 device_remove_file(dev, &sda_fan_min[i].dev_attr);
2741 for (i = 0; i < NUM_REG_TEMP; i++) {
2742 if (!(data->have_temp & (1 << i)))
2744 device_remove_file(dev, &sda_temp_input[i].dev_attr);
2745 device_remove_file(dev, &sda_temp_label[i].dev_attr);
2746 device_remove_file(dev, &sda_temp_max[i].dev_attr);
2747 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
2750 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
2751 device_remove_file(dev, &sda_temp_type[i].dev_attr);
2752 device_remove_file(dev, &sda_temp_offset[i].dev_attr);
2755 device_remove_file(dev, &sda_caseopen[0].dev_attr);
2756 device_remove_file(dev, &sda_caseopen[1].dev_attr);
2758 device_remove_file(dev, &dev_attr_name);
2759 device_remove_file(dev, &dev_attr_cpu0_vid);
2762 /* Get the monitoring functions started */
2763 static inline void __devinit nct6775_init_device(struct nct6775_data *data)
2768 /* Start monitoring if needed */
2769 tmp = nct6775_read_value(data, NCT6775_REG_CONFIG);
2771 nct6775_write_value(data, NCT6775_REG_CONFIG,
2774 /* Enable temperature sensors if needed */
2775 for (i = 0; i < NUM_REG_TEMP; i++) {
2776 if (!(data->have_temp & (1 << i)))
2778 if (!data->reg_temp_config[i])
2780 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
2782 nct6775_write_value(data, data->reg_temp_config[i],
2786 /* Enable VBAT monitoring if needed */
2787 tmp = nct6775_read_value(data, NCT6775_REG_VBAT);
2789 nct6775_write_value(data, NCT6775_REG_VBAT, tmp | 0x01);
2791 for (i = 0; i < 3; i++) {
2792 const char *label = NULL;
2794 if (data->temp_label)
2795 label = data->temp_label[data->temp_src[i]];
2797 /* Digital source overrides analog type */
2798 if (label && strncmp(label, "PECI", 4) == 0)
2799 data->temp_type[i] = 6;
2800 else if (label && strncmp(label, "AMD", 3) == 0)
2801 data->temp_type[i] = 5;
2802 else if ((tmp & (0x02 << i)))
2803 data->temp_type[i] = 1; /* diode */
2805 data->temp_type[i] = 4; /* thermistor */
2809 static void w82627ehf_swap_tempreg(struct nct6775_data *data,
2814 tmp = data->temp_src[r1];
2815 data->temp_src[r1] = data->temp_src[r2];
2816 data->temp_src[r2] = tmp;
2818 for (i = 0; i < 3; i++) {
2819 tmp = data->reg_temp[i][r1];
2820 data->reg_temp[i][r1] = data->reg_temp[i][r2];
2821 data->reg_temp[i][r2] = tmp;
2824 tmp = data->reg_temp_config[r1];
2825 data->reg_temp_config[r1] = data->reg_temp_config[r2];
2826 data->reg_temp_config[r2] = tmp;
2829 static void __devinit
2830 nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data,
2831 struct nct6775_data *data)
2834 bool fan3pin, fan3min, fan4pin, fan4min, fan5pin;
2835 bool pwm3pin, pwm4pin, pwm5pin;
2837 superio_enter(sio_data->sioreg);
2839 /* fan4 and fan5 share some pins with the GPIO and serial flash */
2840 if (data->kind == nct6775) {
2841 regval = superio_inb(sio_data->sioreg, 0x2c);
2843 fan3pin = regval & (1 << 6);
2845 pwm3pin = regval & (1 << 7);
2847 /* On NCT6775, fan4 shares pins with the fdc interface */
2848 fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80);
2853 } else if (data->kind == nct6776) {
2854 bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
2856 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
2857 regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
2862 fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
2867 fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01;
2872 fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02;
2879 } else { /* NCT6779D */
2880 regval = superio_inb(sio_data->sioreg, 0x1c);
2882 fan3pin = !(regval & (1 << 5));
2883 fan4pin = !(regval & (1 << 6));
2884 fan5pin = !(regval & (1 << 7));
2886 pwm3pin = !(regval & (1 << 0));
2887 pwm4pin = !(regval & (1 << 1));
2888 pwm5pin = !(regval & (1 << 2));
2894 superio_exit(sio_data->sioreg);
2896 data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */
2897 data->has_fan |= (fan3pin << 2);
2898 data->has_fan_min |= (fan3min << 2);
2900 data->has_fan |= (fan4pin << 3) | (fan5pin << 4);
2901 data->has_fan_min |= (fan4min << 3) | (fan5pin << 4);
2903 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4);
2906 static int __devinit nct6775_probe(struct platform_device *pdev)
2908 struct device *dev = &pdev->dev;
2909 struct nct6775_sio_data *sio_data = dev->platform_data;
2910 struct nct6775_data *data;
2911 struct resource *res;
2914 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
2916 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
2917 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
2919 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
2920 (unsigned long)res->start,
2921 (unsigned long)res->start + IOREGION_LENGTH - 1);
2925 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
2932 data->kind = sio_data->kind;
2933 data->addr = res->start;
2934 mutex_init(&data->lock);
2935 mutex_init(&data->update_lock);
2936 data->name = nct6775_device_names[data->kind];
2937 platform_set_drvdata(pdev, data);
2939 switch (data->kind) {
2942 data->have_in = 0x1ff;
2944 data->auto_pwm_num = 6;
2945 data->has_fan_div = true;
2947 data->fan_from_reg = fan_from_reg16;
2948 data->fan_from_reg_min = fan_from_reg8;
2950 data->REG_VIN = NCT6775_REG_IN;
2951 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
2952 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
2953 data->REG_TARGET = NCT6775_REG_TARGET;
2954 data->REG_FAN = NCT6775_REG_FAN;
2955 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
2956 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
2957 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
2958 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
2959 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
2960 data->REG_PWM[0] = NCT6775_REG_PWM;
2961 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
2962 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
2963 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
2964 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
2965 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
2966 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
2967 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
2968 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
2969 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
2970 data->REG_CRITICAL_TEMP_TOLERANCE
2971 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
2972 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
2973 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
2974 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
2975 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
2976 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
2977 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
2978 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
2979 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
2980 data->REG_ALARM = NCT6775_REG_ALARM;
2981 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
2982 data->CASEOPEN_MASK = NCT6775_CASEOPEN_MASK;
2984 reg_temp = NCT6775_REG_TEMP;
2985 reg_temp_over = NCT6775_REG_TEMP_OVER;
2986 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
2987 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
2992 data->have_in = 0x1ff;
2994 data->auto_pwm_num = 4;
2995 data->has_fan_div = false;
2996 data->fan_from_reg = fan_from_reg13;
2997 data->fan_from_reg_min = fan_from_reg13;
2998 data->REG_VIN = NCT6775_REG_IN;
2999 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3000 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3001 data->REG_TARGET = NCT6775_REG_TARGET;
3002 data->REG_FAN = NCT6775_REG_FAN;
3003 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3004 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3005 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3006 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3007 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3008 data->REG_PWM[0] = NCT6775_REG_PWM;
3009 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3010 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3011 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3012 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3013 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3014 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3015 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3016 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3017 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3018 data->REG_CRITICAL_TEMP_TOLERANCE
3019 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3020 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3021 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3022 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3023 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3024 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3025 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3026 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3027 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3028 data->REG_WEIGHT_DUTY[1] = NCT6776_REG_WEIGHT_DUTY_BASE;
3029 data->REG_ALARM = NCT6775_REG_ALARM;
3030 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3031 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
3033 reg_temp = NCT6775_REG_TEMP;
3034 reg_temp_over = NCT6775_REG_TEMP_OVER;
3035 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3036 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3041 data->have_in = 0x7fff;
3043 data->auto_pwm_num = 4;
3044 data->has_fan_div = false;
3046 data->fan_from_reg = fan_from_reg13;
3047 data->fan_from_reg_min = fan_from_reg13;
3049 data->REG_VIN = NCT6779_REG_IN;
3050 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3051 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3052 data->REG_TARGET = NCT6775_REG_TARGET;
3053 data->REG_FAN = NCT6779_REG_FAN;
3054 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3055 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3056 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3057 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3058 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3059 data->REG_PWM[0] = NCT6775_REG_PWM;
3060 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3061 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3062 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3063 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3064 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3065 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3066 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3067 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3068 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3069 data->REG_CRITICAL_TEMP_TOLERANCE
3070 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3071 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3072 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3073 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3074 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3075 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3076 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3077 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3078 data->REG_WEIGHT_DUTY[0] = NCT6775_REG_WEIGHT_DUTY_STEP;
3079 data->REG_WEIGHT_DUTY[1] = NCT6776_REG_WEIGHT_DUTY_BASE;
3080 data->REG_ALARM = NCT6779_REG_ALARM;
3081 data->REG_CASEOPEN = NCT6775_REG_CASEOPEN;
3082 data->CASEOPEN_MASK = NCT6776_CASEOPEN_MASK;
3084 reg_temp = NCT6779_REG_TEMP;
3085 reg_temp_over = NCT6775_REG_TEMP_OVER;
3086 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3087 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3095 /* Default to no temperature inputs, code below will adjust as needed */
3096 data->have_temp = 0;
3098 for (i = 0; i < NUM_REG_TEMP; i++) {
3099 if (reg_temp[i] == 0)
3102 data->reg_temp[0][i] = reg_temp[i];
3103 data->reg_temp[1][i] = reg_temp_over[i];
3104 data->reg_temp[2][i] = reg_temp_hyst[i];
3105 data->reg_temp_config[i] = reg_temp_config[i];
3107 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]);
3110 if (src && !(mask & (1 << src))) {
3111 data->have_temp |= 1 << i;
3115 data->temp_src[i] = src;
3118 * Do some register swapping if index 0..2 don't
3119 * point to SYSTIN(1), CPUIN(2), and AUXIN(3).
3120 * Idea is to have the first three attributes
3121 * report SYSTIN, CPUIN, and AUXIN if possible
3122 * without overriding the basic system configuration.
3123 * Do this only for the first six temperature sources;
3124 * the remaining temperatures are fan control sources,
3125 * and we don't want to touch those.
3127 if (i > 0 && data->temp_src[0] != 1
3128 && data->temp_src[i] == 1)
3129 w82627ehf_swap_tempreg(data, 0, i);
3130 if (i > 1 && data->temp_src[1] != 2
3131 && data->temp_src[i] == 2)
3132 w82627ehf_swap_tempreg(data, 1, i);
3133 if (i > 2 && data->temp_src[2] != 3
3134 && data->temp_src[i] == 3)
3135 w82627ehf_swap_tempreg(data, 2, i);
3137 data->have_temp_offset = data->have_temp & 0x07;
3138 for (i = 0; i < 3; i++) {
3139 if (data->temp_src[i] > 3)
3140 data->have_temp_offset &= ~(1 << i);
3143 switch (data->kind) {
3145 data->temp_label = nct6775_temp_label;
3149 * On NCT6776, AUXTIN and VIN3 pins are shared.
3150 * Only way to detect it is to check if AUXTIN is used
3151 * as a temperature source, and if that source is
3154 * If that is the case, disable in6, which reports VIN3.
3155 * Otherwise disable temp3.
3157 if (data->temp_src[2] == 3) {
3160 if (data->reg_temp_config[2])
3161 reg = nct6775_read_value(data,
3162 data->reg_temp_config[2]);
3164 reg = 0; /* Assume AUXTIN is used */
3167 data->have_temp &= ~(1 << 2);
3169 data->have_in &= ~(1 << 6);
3171 data->temp_label = nct6776_temp_label;
3180 * Assume voltage is disabled if the respective temperature is
3181 * used as temperature source.
3183 for (i = 0; i < ARRAY_SIZE(NCT6779_REG_TEMP); i++) {
3184 if (!(data->have_temp & (1 << i)))
3186 if (data->temp_src[i] == 3) /* AUXTIN0 */
3187 data->have_in &= ~(1 << 6); /* no VIN4 */
3188 if (data->temp_src[i] == 4) /* AUXTIN1 */
3189 data->have_in &= ~(1 << 10); /* no VIN5 */
3190 if (data->temp_src[i] == 5) /* AUXTIN2 */
3191 data->have_in &= ~(1 << 11); /* no VIN6 */
3192 if (data->temp_src[i] == 6) /* AUXTIN0 */
3193 data->have_in &= ~(1 << 14); /* no VIN7 */
3195 data->temp_label = nct6779_temp_label;
3199 /* Initialize the chip */
3200 nct6775_init_device(data);
3202 data->vrm = vid_which_vrm();
3203 superio_enter(sio_data->sioreg);
3206 * We can get the VID input values directly at logical device D 0xe3.
3208 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3209 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3210 err = device_create_file(dev, &dev_attr_cpu0_vid);
3217 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3218 tmp = superio_inb(sio_data->sioreg,
3219 NCT6775_REG_CR_FAN_DEBOUNCE);
3220 switch (data->kind) {
3229 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3231 pr_info("Enabled fan debounce for chip %s\n", data->name);
3234 superio_exit(sio_data->sioreg);
3236 nct6775_check_fan_inputs(sio_data, data);
3238 /* Read fan clock dividers immediately */
3239 nct6775_update_fan_div_common(dev, data);
3241 /* Register sysfs hooks */
3242 for (i = 0; i < data->pwm_num; i++) {
3243 if (!(data->has_pwm & (1 << i)))
3246 err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
3250 if (data->REG_WEIGHT_DUTY[1]) {
3251 err = device_create_file(dev,
3252 &sda_weight_duty_base[i].dev_attr);
3257 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
3258 struct sensor_device_attribute_2 *attr =
3259 &sda_auto_pwm_arrays[i];
3261 if (!(data->has_pwm & (1 << attr->nr)))
3263 if (attr->index > data->auto_pwm_num)
3265 err = device_create_file(dev, &attr->dev_attr);
3270 for (i = 0; i < data->in_num; i++) {
3271 if (!(data->have_in & (1 << i)))
3273 err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]);
3278 for (i = 0; i < 5; i++) {
3279 if (data->has_fan & (1 << i)) {
3280 err = device_create_file(dev,
3281 &sda_fan_input[i].dev_attr);
3284 err = device_create_file(dev,
3285 &sda_fan_alarm[i].dev_attr);
3288 if (data->kind != nct6776 &&
3289 data->kind != nct6779) {
3290 err = device_create_file(dev,
3291 &sda_fan_div[i].dev_attr);
3295 if (data->has_fan_min & (1 << i)) {
3296 err = device_create_file(dev,
3297 &sda_fan_min[i].dev_attr);
3304 for (i = 0; i < NUM_REG_TEMP; i++) {
3305 if (!(data->have_temp & (1 << i)))
3307 err = device_create_file(dev, &sda_temp_input[i].dev_attr);
3310 if (data->temp_label) {
3311 err = device_create_file(dev,
3312 &sda_temp_label[i].dev_attr);
3316 if (data->reg_temp[1][i]) {
3317 err = device_create_file(dev,
3318 &sda_temp_max[i].dev_attr);
3322 if (data->reg_temp[2][i]) {
3323 err = device_create_file(dev,
3324 &sda_temp_max_hyst[i].dev_attr);
3330 err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
3333 err = device_create_file(dev, &sda_temp_type[i].dev_attr);
3336 if (data->have_temp_offset & (1 << i)) {
3337 err = device_create_file(dev,
3338 &sda_temp_offset[i].dev_attr);
3344 for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
3345 if (!data->CASEOPEN_MASK[i])
3347 err = device_create_file(dev, &sda_caseopen[i].dev_attr);
3352 err = device_create_file(dev, &dev_attr_name);
3356 data->hwmon_dev = hwmon_device_register(dev);
3357 if (IS_ERR(data->hwmon_dev)) {
3358 err = PTR_ERR(data->hwmon_dev);
3365 nct6775_device_remove_files(dev);
3367 release_region(res->start, IOREGION_LENGTH);
3372 static int __devexit nct6775_remove(struct platform_device *pdev)
3374 struct nct6775_data *data = platform_get_drvdata(pdev);
3376 hwmon_device_unregister(data->hwmon_dev);
3377 nct6775_device_remove_files(&pdev->dev);
3378 release_region(data->addr, IOREGION_LENGTH);
3383 static struct platform_driver nct6775_driver = {
3385 .owner = THIS_MODULE,
3388 .probe = nct6775_probe,
3389 .remove = __devexit_p(nct6775_remove),
3392 /* nct6775_find() looks for a '627 in the Super-I/O config space */
3393 static int __init nct6775_find(int sioaddr, unsigned short *addr,
3394 struct nct6775_sio_data *sio_data)
3396 static const char __initdata sio_name_NCT6775[] = "NCT6775F";
3397 static const char __initdata sio_name_NCT6776[] = "NCT6776F";
3398 static const char __initdata sio_name_NCT6779[] = "NCT6779F";
3401 const char *sio_name;
3403 superio_enter(sioaddr);
3408 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
3409 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
3410 switch (val & SIO_ID_MASK) {
3411 case SIO_NCT6775_ID:
3412 sio_data->kind = nct6775;
3413 sio_name = sio_name_NCT6775;
3415 case SIO_NCT6776_ID:
3416 sio_data->kind = nct6776;
3417 sio_name = sio_name_NCT6776;
3419 case SIO_NCT6779_ID:
3420 sio_data->kind = nct6779;
3421 sio_name = sio_name_NCT6779;
3425 pr_debug("unsupported chip ID: 0x%04x\n", val);
3426 superio_exit(sioaddr);
3430 /* We have a known chip, find the HWM I/O address */
3431 superio_select(sioaddr, NCT6775_LD_HWM);
3432 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
3433 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
3434 *addr = val & IOREGION_ALIGNMENT;
3436 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
3437 superio_exit(sioaddr);
3441 /* Activate logical device if needed */
3442 val = superio_inb(sioaddr, SIO_REG_ENABLE);
3443 if (!(val & 0x01)) {
3444 pr_warn("Forcibly enabling Super-I/O. "
3445 "Sensor is probably unusable.\n");
3446 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
3449 superio_exit(sioaddr);
3450 pr_info("Found %s chip at %#x\n", sio_name, *addr);
3451 sio_data->sioreg = sioaddr;
3457 * when Super-I/O functions move to a separate file, the Super-I/O
3458 * bus will manage the lifetime of the device and this module will only keep
3459 * track of the nct6775 driver. But since we platform_device_alloc(), we
3460 * must keep track of the device
3462 static struct platform_device *pdev;
3464 static int __init sensors_nct6775_init(void)
3467 unsigned short address;
3468 struct resource res;
3469 struct nct6775_sio_data sio_data;
3472 * initialize sio_data->kind and sio_data->sioreg.
3474 * when Super-I/O functions move to a separate file, the Super-I/O
3475 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
3476 * nct6775 hardware monitor, and call probe()
3478 if (nct6775_find(0x2e, &address, &sio_data) &&
3479 nct6775_find(0x4e, &address, &sio_data))
3482 err = platform_driver_register(&nct6775_driver);
3486 pdev = platform_device_alloc(DRVNAME, address);
3489 pr_err("Device allocation failed\n");
3490 goto exit_unregister;
3493 err = platform_device_add_data(pdev, &sio_data,
3494 sizeof(struct nct6775_sio_data));
3496 pr_err("Platform data allocation failed\n");
3497 goto exit_device_put;
3500 memset(&res, 0, sizeof(res));
3502 res.start = address + IOREGION_OFFSET;
3503 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
3504 res.flags = IORESOURCE_IO;
3506 err = acpi_check_resource_conflict(&res);
3508 goto exit_device_put;
3510 err = platform_device_add_resources(pdev, &res, 1);
3512 pr_err("Device resource addition failed (%d)\n", err);
3513 goto exit_device_put;
3516 /* platform_device_add calls probe() */
3517 err = platform_device_add(pdev);
3519 pr_err("Device addition failed (%d)\n", err);
3520 goto exit_device_put;
3526 platform_device_put(pdev);
3528 platform_driver_unregister(&nct6775_driver);
3533 static void __exit sensors_nct6775_exit(void)
3535 platform_device_unregister(pdev);
3536 platform_driver_unregister(&nct6775_driver);
3539 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
3540 MODULE_DESCRIPTION("NCT677x driver");
3541 MODULE_LICENSE("GPL");
3543 module_init(sensors_nct6775_init);
3544 module_exit(sensors_nct6775_exit);