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>
59 enum kinds { nct6775, nct6776, nct6779 };
61 /* used to set data->name = nct6775_device_names[data->sio_kind] */
62 static const char * const nct6775_device_names[] = {
68 static unsigned short force_id;
69 module_param(force_id, ushort, 0);
70 MODULE_PARM_DESC(force_id, "Override the detected device ID");
72 static unsigned short fan_debounce;
73 module_param(fan_debounce, ushort, 0);
74 MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
76 #define DRVNAME "nct6775"
79 * Super-I/O constants and functions
82 #define NCT6775_LD_ACPI 0x0a
83 #define NCT6775_LD_HWM 0x0b
84 #define NCT6775_LD_VID 0x0d
86 #define SIO_REG_LDSEL 0x07 /* Logical device select */
87 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
88 #define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */
89 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
90 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
91 #define SIO_REG_VID_CTRL 0xF0 /* VID control */
92 #define SIO_REG_VID_DATA 0xF1 /* VID data */
94 #define SIO_NCT6775_ID 0xb470
95 #define SIO_NCT6776_ID 0xc330
96 #define SIO_NCT6779_ID 0xc560
97 #define SIO_ID_MASK 0xFFF0
100 superio_outb(int ioreg, int reg, int val)
103 outb(val, ioreg + 1);
107 superio_inb(int ioreg, int reg)
110 return inb(ioreg + 1);
114 superio_select(int ioreg, int ld)
116 outb(SIO_REG_LDSEL, ioreg);
121 superio_enter(int ioreg)
128 superio_exit(int ioreg)
132 outb(0x02, ioreg + 1);
139 #define IOREGION_ALIGNMENT (~7)
140 #define IOREGION_OFFSET 5
141 #define IOREGION_LENGTH 2
142 #define ADDR_REG_OFFSET 0
143 #define DATA_REG_OFFSET 1
145 #define NCT6775_REG_BANK 0x4E
146 #define NCT6775_REG_CONFIG 0x40
149 * Not currently used:
150 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
151 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
152 * REG_MAN_ID is at port 0x4f
153 * REG_CHIP_ID is at port 0x58
156 static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
158 /* Voltage min/max registers for nr=7..14 are in bank 5 */
160 static const u16 NCT6775_REG_IN_MAX[] = {
161 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556 };
162 static const u16 NCT6775_REG_IN_MIN[] = {
163 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557 };
164 static const u16 NCT6775_REG_IN[] = {
165 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
168 static const u16 NCT6779_REG_IN[] = {
169 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
170 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e
173 #define NCT6775_REG_VBAT 0x5D
174 #define NCT6775_REG_DIODE 0x5E
176 #define NCT6775_REG_FANDIV1 0x506
177 #define NCT6775_REG_FANDIV2 0x507
179 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
181 static const u16 NCT6775_REG_ALARM[6] = { 0x459, 0x45A, 0x45B };
182 static const u16 NCT6779_REG_ALARM[6] = { 0x459, 0x45A, 0x45B, 0x568 };
184 /* 0..15 voltages, 16..23 fans, 24..31 temperatures */
186 static const s8 NCT6775_ALARM_BITS[]
187 = { 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
188 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
190 6, 7, 11, 10, 23, /* fan1..fan5 */
191 -1, -1, -1, /* unused */
192 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
193 12, -1 }; /* intrusion0, intrusion1 */
195 static const s8 NCT6776_ALARM_BITS[]
196 = { 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
197 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
199 6, 7, 11, 10, 23, /* fan1..fan5 */
200 -1, -1, -1, /* unused */
201 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
202 12, 9 }; /* intrusion0, intrusion1 */
204 static const s8 NCT6779_ALARM_BITS[]
205 = { 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
206 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
208 6, 7, 11, 10, 23, /* fan1..fan5 */
209 -1, -1, -1, /* unused */
210 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
211 12, 9 }; /* intrusion0, intrusion1 */
213 #define FAN_ALARM_BASE 16
214 #define TEMP_ALARM_BASE 24
215 #define INTRUSION_ALARM_BASE 30
217 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
218 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
220 /* DC or PWM output fan configuration */
221 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
222 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
224 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
225 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
227 /* Advanced Fan control, some values are common for all fans */
229 static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 };
230 static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
231 static const u16 NCT6779_REG_FAN_PULSES[]
232 = { 0x644, 0x645, 0x646, 0x647, 0x648 };
234 static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
235 static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
236 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
237 0x103, 0x203, 0x303, 0x803, 0x903 };
238 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
239 0x104, 0x204, 0x304, 0x804, 0x904 };
240 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
241 0x105, 0x205, 0x305, 0x805, 0x905 };
242 static const u16 NCT6775_REG_FAN_START_OUTPUT[]
243 = { 0x106, 0x206, 0x306, 0x806, 0x906 };
244 static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
245 static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
247 static const u16 NCT6775_REG_FAN_STOP_TIME[]
248 = { 0x107, 0x207, 0x307, 0x807, 0x907 };
249 static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
250 static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
252 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
254 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642};
256 static const u16 NCT6779_REG_TOLERANCE_H[]
257 = { 0x10c, 0x20c, 0x30c, 0x80c, 0x90c };
259 static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8 };
261 static const u16 NCT6775_REG_TEMP[]
262 = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
263 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
265 static const u16 NCT6775_REG_TEMP_CONFIG[]
266 = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
267 static const u16 NCT6775_REG_TEMP_HYST[]
268 = { 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
269 static const u16 NCT6775_REG_TEMP_OVER[]
270 = { 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
272 static const u16 NCT6775_REG_TEMP_SOURCE[]
273 = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
275 static const u16 NCT6775_REG_TEMP_SEL[]
276 = { 0x100, 0x200, 0x300, 0x800, 0x900 };
278 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[]
279 = { 0x139, 0x239, 0x339, 0x839, 0x939 };
280 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[]
281 = { 0x13a, 0x23a, 0x33a, 0x83a, 0x93a };
282 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[]
283 = { 0x13b, 0x23b, 0x33b, 0x83b, 0x93b };
284 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[]
285 = { 0x13c, 0x23c, 0x33c, 0x83c, 0x93c };
286 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[]
287 = { 0x13d, 0x23d, 0x33d, 0x83d, 0x93d };
289 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[]
290 = { 0x13e, 0x23e, 0x33e, 0x83e, 0x93e };
292 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
294 static const u16 NCT6779_REG_TEMP_OFFSET[]
295 = { 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
297 static const u16 NCT6776_REG_TEMP_CONFIG[11]
298 = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
300 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
302 static const u16 NCT6775_REG_AUTO_TEMP[]
303 = { 0x121, 0x221, 0x321, 0x821, 0x921 };
304 static const u16 NCT6775_REG_AUTO_PWM[]
305 = { 0x127, 0x227, 0x327, 0x827, 0x927 };
307 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
308 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
310 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
312 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
313 0x135, 0x235, 0x335, 0x835, 0x935 };
314 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
315 0x138, 0x238, 0x338, 0x838, 0x938 };
317 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
318 0x136, 0x236, 0x336, 0x836, 0x936 };
319 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
320 0x137, 0x237, 0x337, 0x837, 0x937 };
322 static const char *const nct6775_temp_label[] = {
336 "PCH_CHIP_CPU_MAX_TEMP",
346 static const char *const nct6776_temp_label[] = {
361 "PCH_CHIP_CPU_MAX_TEMP",
372 static const char *const nct6779_temp_label[] = {
391 "PCH_CHIP_CPU_MAX_TEMP",
402 static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
403 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
405 static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
406 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
408 static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
409 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
410 0, 0, 0, 0, 0, 0, 0, 0,
411 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
414 #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
415 #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
417 #define NUM_REG_TEMP ARRAY_SIZE(NCT6775_REG_TEMP)
419 static inline int reg_to_pwm_enable(int pwm, int mode)
421 if (mode == 0 && pwm == 255)
426 static inline int pwm_enable_to_reg(int mode)
437 /* 1 is DC mode, output in ms */
438 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
440 return mode ? 400 * reg : 100 * reg;
443 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
445 return SENSORS_LIMIT((mode ? (msec + 200) / 400 :
446 (msec + 50) / 100), 1, 255);
449 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
451 if (reg == 0 || reg == 255)
453 return 1350000U / (reg << divreg);
456 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
458 if ((reg & 0xff1f) == 0xff1f)
461 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
466 return 1350000U / reg;
469 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
471 if (reg == 0 || reg == 0xffff)
475 * Even though the registers are 16 bit wide, the fan divisor
478 return 1350000U / (reg << divreg);
481 static inline unsigned int
488 * Some of the voltage inputs have internal scaling, the tables below
489 * contain 8 (the ADC LSB in mV) * scaling factor * 100
491 static const u16 scale_in[15] = {
492 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
496 static inline long in_from_reg(u8 reg, u8 nr)
498 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
501 static inline u8 in_to_reg(u32 val, u8 nr)
503 return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
508 * Data structures and manipulation thereof
511 struct nct6775_data {
512 int addr; /* IO base of hw monitor block */
516 struct device *hwmon_dev;
519 u16 reg_temp[3][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
520 u8 temp_src[NUM_TEMP];
521 u16 reg_temp_config[NUM_TEMP];
522 const char * const *temp_label;
529 const s8 *ALARM_BITS;
532 const u16 *REG_IN_MINMAX[2];
534 const u16 *REG_TARGET;
536 const u16 *REG_FAN_MODE;
537 const u16 *REG_FAN_MIN;
538 const u16 *REG_FAN_TIME[3];
540 const u8 *REG_PWM_MODE;
541 const u8 *PWM_MODE_MASK;
543 const u16 *REG_PWM[7]; /* [0]=pwm, [1]=start_output, [2]=stop_output,
544 * [3]=max_output, [4]=step_output,
545 * [5]=weight_duty_step, [6]=weight_duty_base
547 const u16 *REG_PWM_READ;
549 const u16 *REG_TEMP_ALTERNATE;
550 const u16 *REG_TEMP_MON;
551 const u16 *REG_AUTO_TEMP;
552 const u16 *REG_AUTO_PWM;
554 const u16 *REG_CRITICAL_TEMP;
555 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
557 const u16 *REG_TEMP_SOURCE; /* temp register sources */
558 const u16 *REG_TEMP_SEL[2]; /* pwm temp, 0=base, 1=weight */
560 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=hyst, 2=step */
562 const u16 *REG_TEMP_OFFSET;
564 const u16 *REG_ALARM;
566 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
567 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
569 struct mutex update_lock;
570 char valid; /* !=0 if following fields are valid */
571 unsigned long last_updated; /* In jiffies */
573 /* Register values */
574 u8 bank; /* current register bank */
575 u8 in_num; /* number of in inputs we have */
576 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
581 u8 has_fan; /* some fan inputs can be disabled */
582 u8 has_fan_min; /* some fans don't have min register */
585 u8 temp_fixed_num; /* 3 or 6 */
586 u8 temp_type[NUM_TEMP_FIXED];
587 s8 temp_offset[NUM_TEMP_FIXED];
588 s16 temp[3][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
591 u8 pwm_num; /* number of pwm */
593 u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */
594 u8 pwm_enable[5]; /* 0->off
596 * 2->thermal cruise mode (also called SmartFan I)
597 * 3->fan speed cruise mode
599 * 5->enhanced variable thermal cruise (SmartFan IV)
601 u8 pwm[7][5]; /* [0]=pwm, [1]=start_output, [2]=stop_output,
602 * [3]=max_output, [4]=step_output,
603 * [5]=weight_duty_step, [6]=weight_duty_base
609 u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
611 /* Automatic fan speed control registers */
616 u8 pwm_temp_sel[2][5];
618 bool pwm_sel_enable[2][5];/* 0->stop_val, 1->weight;
619 * false->off, true->on
621 u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol,
633 struct nct6775_sio_data {
638 static bool is_word_sized(struct nct6775_data *data, u16 reg)
640 switch (data->kind) {
642 return (((reg & 0xff00) == 0x100 ||
643 (reg & 0xff00) == 0x200) &&
644 ((reg & 0x00ff) == 0x50 ||
645 (reg & 0x00ff) == 0x53 ||
646 (reg & 0x00ff) == 0x55)) ||
647 (reg & 0xfff0) == 0x630 ||
648 reg == 0x640 || reg == 0x642 ||
650 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
651 reg == 0x73 || reg == 0x75 || reg == 0x77;
653 return (((reg & 0xff00) == 0x100 ||
654 (reg & 0xff00) == 0x200) &&
655 ((reg & 0x00ff) == 0x50 ||
656 (reg & 0x00ff) == 0x53 ||
657 (reg & 0x00ff) == 0x55)) ||
658 (reg & 0xfff0) == 0x630 ||
660 reg == 0x640 || reg == 0x642 ||
661 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
662 reg == 0x73 || reg == 0x75 || reg == 0x77;
664 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
665 ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x09) ||
667 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
668 reg == 0x640 || reg == 0x642 ||
669 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
676 * On older chips, only registers 0x50-0x5f are banked.
677 * On more recent chips, all registers are banked.
678 * Assume that is the case and set the bank number for each access.
679 * Cache the bank number so it only needs to be set if it changes.
681 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
684 if (data->bank != bank) {
685 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
686 outb_p(bank, data->addr + DATA_REG_OFFSET);
691 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
693 int res, word_sized = is_word_sized(data, reg);
695 mutex_lock(&data->lock);
697 nct6775_set_bank(data, reg);
698 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
699 res = inb_p(data->addr + DATA_REG_OFFSET);
701 outb_p((reg & 0xff) + 1,
702 data->addr + ADDR_REG_OFFSET);
703 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
706 mutex_unlock(&data->lock);
710 static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
712 int word_sized = is_word_sized(data, reg);
714 mutex_lock(&data->lock);
716 nct6775_set_bank(data, reg);
717 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
719 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
720 outb_p((reg & 0xff) + 1,
721 data->addr + ADDR_REG_OFFSET);
723 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
725 mutex_unlock(&data->lock);
729 /* We left-align 8-bit temperature values to make the code simpler */
730 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
734 res = nct6775_read_value(data, reg);
735 if (!is_word_sized(data, reg))
741 static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
743 if (!is_word_sized(data, reg))
745 return nct6775_write_value(data, reg, value);
748 /* This function assumes that the caller holds data->update_lock */
749 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
755 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
756 | (data->fan_div[0] & 0x7);
757 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
760 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
761 | ((data->fan_div[1] << 4) & 0x70);
762 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
764 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
765 | (data->fan_div[2] & 0x7);
766 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
769 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
770 | ((data->fan_div[3] << 4) & 0x70);
771 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
776 static void nct6775_write_fan_div_common(struct device *dev,
777 struct nct6775_data *data, int nr)
779 if (data->kind == nct6775)
780 nct6775_write_fan_div(data, nr);
783 static void nct6775_update_fan_div(struct nct6775_data *data)
787 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
788 data->fan_div[0] = i & 0x7;
789 data->fan_div[1] = (i & 0x70) >> 4;
790 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
791 data->fan_div[2] = i & 0x7;
792 if (data->has_fan & (1<<3))
793 data->fan_div[3] = (i & 0x70) >> 4;
796 static void nct6775_update_fan_div_common(struct device *dev,
797 struct nct6775_data *data)
799 if (data->kind == nct6775)
800 nct6775_update_fan_div(data);
803 static void nct6775_update_pwm(struct device *dev)
805 struct nct6775_data *data = dev_get_drvdata(dev);
810 for (i = 0; i < data->pwm_num; i++) {
811 if (!(data->has_pwm & (1 << i)))
814 duty_is_dc = data->REG_PWM_MODE[i] &&
815 (nct6775_read_value(data, data->REG_PWM_MODE[i])
816 & data->PWM_MODE_MASK[i]);
817 data->pwm_mode[i] = duty_is_dc;
819 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
820 for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
821 if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
823 = nct6775_read_value(data,
824 data->REG_PWM[j][i]);
828 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
829 (fanmodecfg >> 4) & 7);
831 data->tolerance[i][0] = fanmodecfg & 0x0f;
832 if (data->kind == nct6779) {
833 reg = nct6775_read_value(data,
834 NCT6779_REG_TOLERANCE_H[i]);
835 data->tolerance[i][0] |= (reg & 0x70) >> 1;
837 data->tolerance[i][1] =
838 nct6775_read_value(data,
839 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
841 data->pwm_sel_enable[0][i] =
842 nct6775_read_value(data, data->REG_TEMP_SEL[0][i])
844 data->pwm_sel_enable[1][i] =
845 nct6775_read_value(data, data->REG_TEMP_SEL[1][i])
849 for (j = 0; j < 2; j++) {
850 reg = nct6775_read_value(data,
851 data->REG_TEMP_SEL[j][i]);
852 data->pwm_temp_sel[j][i] = reg & 0x1f;
854 /* Weight temp data */
855 for (j = 0; j < 3; j++) {
856 data->weight_temp[j][i]
857 = nct6775_read_value(data,
858 data->REG_WEIGHT_TEMP[j][i]);
863 static void nct6775_update_pwm_limits(struct device *dev)
865 struct nct6775_data *data = dev_get_drvdata(dev);
869 for (i = 0; i < data->pwm_num; i++) {
870 if (!(data->has_pwm & (1 << i)))
873 for (j = 0; j < 3; j++) {
874 data->fan_time[j][i] =
875 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
878 data->target_temp[i] =
879 nct6775_read_value(data, data->REG_TARGET[i]) &
880 (data->pwm_mode[i] ? 0xff : 0x7f);
882 nct6775_read_value(data, data->REG_TEMP_MON[i]);
884 for (j = 0; j < data->auto_pwm_num; j++) {
885 data->auto_pwm[i][j] =
886 nct6775_read_value(data,
887 NCT6775_AUTO_PWM(data, i, j));
888 data->auto_temp[i][j] =
889 nct6775_read_value(data,
890 NCT6775_AUTO_TEMP(data, i, j));
893 /* critical auto_pwm temperature data */
894 data->auto_temp[i][data->auto_pwm_num] =
895 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
897 switch (data->kind) {
899 reg = nct6775_read_value(data,
900 NCT6775_REG_CRITICAL_ENAB[i]);
901 data->auto_pwm[i][data->auto_pwm_num] =
902 (reg & 0x02) ? 0xff : 0x00;
905 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
908 reg = nct6775_read_value(data,
909 NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
911 data->auto_pwm[i][data->auto_pwm_num] =
912 nct6775_read_value(data,
913 NCT6779_REG_CRITICAL_PWM[i]);
915 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
921 static struct nct6775_data *nct6775_update_device(struct device *dev)
923 struct nct6775_data *data = dev_get_drvdata(dev);
926 mutex_lock(&data->update_lock);
928 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
930 /* Fan clock dividers */
931 nct6775_update_fan_div_common(dev, data);
933 /* Measured voltages and limits */
934 for (i = 0; i < data->in_num; i++) {
935 if (!(data->have_in & (1 << i)))
938 data->in[i][0] = nct6775_read_value(data,
940 data->in[i][1] = nct6775_read_value(data,
941 data->REG_IN_MINMAX[0][i]);
942 data->in[i][2] = nct6775_read_value(data,
943 data->REG_IN_MINMAX[1][i]);
946 /* Measured fan speeds and limits */
947 for (i = 0; i < 5; i++) {
950 if (!(data->has_fan & (1 << i)))
953 reg = nct6775_read_value(data, data->REG_FAN[i]);
954 data->rpm[i] = data->fan_from_reg(reg,
957 if (data->has_fan_min & (1 << i))
958 data->fan_min[i] = nct6775_read_value(data,
959 data->REG_FAN_MIN[i]);
962 * If we failed to measure the fan speed and clock
963 * divider can be increased, let's try that for next
966 if (data->has_fan_div
967 && (reg >= 0xff || (data->kind == nct6775
969 && data->fan_div[i] < 0x07) {
971 "Increasing fan%d clock divider from %u to %u\n",
972 i + 1, div_from_reg(data->fan_div[i]),
973 div_from_reg(data->fan_div[i] + 1));
975 nct6775_write_fan_div_common(dev, data, i);
976 /* Preserve min limit if possible */
977 if ((data->has_fan_min & (1 << i))
978 && data->fan_min[i] >= 2
979 && data->fan_min[i] != 255)
980 nct6775_write_value(data,
981 data->REG_FAN_MIN[i],
982 (data->fan_min[i] /= 2));
986 nct6775_update_pwm(dev);
987 nct6775_update_pwm_limits(dev);
989 /* Measured temperatures and limits */
990 for (i = 0; i < NUM_TEMP; i++) {
991 if (!(data->have_temp & (1 << i)))
993 for (j = 0; j < 3; j++) {
994 if (data->reg_temp[j][i])
996 = nct6775_read_temp(data,
997 data->reg_temp[j][i]);
999 if (!(data->have_temp_fixed & (1 << i)))
1001 data->temp_offset[i]
1002 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
1006 for (i = 0; i < 6; i++) {
1008 if (!data->REG_ALARM[i])
1010 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
1011 data->alarms |= ((u64)alarm) << (i << 3);
1014 data->last_updated = jiffies;
1018 mutex_unlock(&data->update_lock);
1023 * Sysfs callback functions
1026 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
1028 struct nct6775_data *data = nct6775_update_device(dev);
1029 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1031 int index = sattr->index;
1032 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
1036 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1039 struct nct6775_data *data = dev_get_drvdata(dev);
1040 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1042 int index = sattr->index;
1044 int err = kstrtoul(buf, 10, &val);
1047 mutex_lock(&data->update_lock);
1048 data->in[nr][index] = in_to_reg(val, nr);
1049 nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr],
1050 data->in[nr][index]);
1051 mutex_unlock(&data->update_lock);
1056 show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1058 struct nct6775_data *data = nct6775_update_device(dev);
1059 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1060 int nr = data->ALARM_BITS[sattr->index];
1061 return sprintf(buf, "%u\n",
1062 (unsigned int)((data->alarms >> nr) & 0x01));
1065 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
1066 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
1067 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
1068 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0);
1069 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0);
1070 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0);
1071 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0);
1072 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0);
1073 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0);
1074 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0);
1075 static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0);
1076 static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0);
1077 static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0);
1078 static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0);
1079 static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0);
1081 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1082 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1083 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1084 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1085 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
1086 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
1087 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
1088 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
1089 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
1090 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
1091 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
1092 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 11);
1093 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 12);
1094 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 13);
1095 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 14);
1097 static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg,
1098 store_in_reg, 0, 1);
1099 static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg,
1100 store_in_reg, 1, 1);
1101 static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg,
1102 store_in_reg, 2, 1);
1103 static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg,
1104 store_in_reg, 3, 1);
1105 static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg,
1106 store_in_reg, 4, 1);
1107 static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg,
1108 store_in_reg, 5, 1);
1109 static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg,
1110 store_in_reg, 6, 1);
1111 static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg,
1112 store_in_reg, 7, 1);
1113 static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg,
1114 store_in_reg, 8, 1);
1115 static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg,
1116 store_in_reg, 9, 1);
1117 static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg,
1118 store_in_reg, 10, 1);
1119 static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg,
1120 store_in_reg, 11, 1);
1121 static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg,
1122 store_in_reg, 12, 1);
1123 static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg,
1124 store_in_reg, 13, 1);
1125 static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg,
1126 store_in_reg, 14, 1);
1128 static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg,
1129 store_in_reg, 0, 2);
1130 static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg,
1131 store_in_reg, 1, 2);
1132 static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg,
1133 store_in_reg, 2, 2);
1134 static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg,
1135 store_in_reg, 3, 2);
1136 static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg,
1137 store_in_reg, 4, 2);
1138 static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg,
1139 store_in_reg, 5, 2);
1140 static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg,
1141 store_in_reg, 6, 2);
1142 static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg,
1143 store_in_reg, 7, 2);
1144 static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg,
1145 store_in_reg, 8, 2);
1146 static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg,
1147 store_in_reg, 9, 2);
1148 static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg,
1149 store_in_reg, 10, 2);
1150 static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg,
1151 store_in_reg, 11, 2);
1152 static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg,
1153 store_in_reg, 12, 2);
1154 static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg,
1155 store_in_reg, 13, 2);
1156 static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg,
1157 store_in_reg, 14, 2);
1159 static struct attribute *nct6775_attributes_in[15][5] = {
1161 &sensor_dev_attr_in0_input.dev_attr.attr,
1162 &sensor_dev_attr_in0_min.dev_attr.attr,
1163 &sensor_dev_attr_in0_max.dev_attr.attr,
1164 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1168 &sensor_dev_attr_in1_input.dev_attr.attr,
1169 &sensor_dev_attr_in1_min.dev_attr.attr,
1170 &sensor_dev_attr_in1_max.dev_attr.attr,
1171 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1175 &sensor_dev_attr_in2_input.dev_attr.attr,
1176 &sensor_dev_attr_in2_min.dev_attr.attr,
1177 &sensor_dev_attr_in2_max.dev_attr.attr,
1178 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1182 &sensor_dev_attr_in3_input.dev_attr.attr,
1183 &sensor_dev_attr_in3_min.dev_attr.attr,
1184 &sensor_dev_attr_in3_max.dev_attr.attr,
1185 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1189 &sensor_dev_attr_in4_input.dev_attr.attr,
1190 &sensor_dev_attr_in4_min.dev_attr.attr,
1191 &sensor_dev_attr_in4_max.dev_attr.attr,
1192 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1196 &sensor_dev_attr_in5_input.dev_attr.attr,
1197 &sensor_dev_attr_in5_min.dev_attr.attr,
1198 &sensor_dev_attr_in5_max.dev_attr.attr,
1199 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1203 &sensor_dev_attr_in6_input.dev_attr.attr,
1204 &sensor_dev_attr_in6_min.dev_attr.attr,
1205 &sensor_dev_attr_in6_max.dev_attr.attr,
1206 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1210 &sensor_dev_attr_in7_input.dev_attr.attr,
1211 &sensor_dev_attr_in7_min.dev_attr.attr,
1212 &sensor_dev_attr_in7_max.dev_attr.attr,
1213 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1217 &sensor_dev_attr_in8_input.dev_attr.attr,
1218 &sensor_dev_attr_in8_min.dev_attr.attr,
1219 &sensor_dev_attr_in8_max.dev_attr.attr,
1220 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1224 &sensor_dev_attr_in9_input.dev_attr.attr,
1225 &sensor_dev_attr_in9_min.dev_attr.attr,
1226 &sensor_dev_attr_in9_max.dev_attr.attr,
1227 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1231 &sensor_dev_attr_in10_input.dev_attr.attr,
1232 &sensor_dev_attr_in10_min.dev_attr.attr,
1233 &sensor_dev_attr_in10_max.dev_attr.attr,
1234 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1238 &sensor_dev_attr_in11_input.dev_attr.attr,
1239 &sensor_dev_attr_in11_min.dev_attr.attr,
1240 &sensor_dev_attr_in11_max.dev_attr.attr,
1241 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1245 &sensor_dev_attr_in12_input.dev_attr.attr,
1246 &sensor_dev_attr_in12_min.dev_attr.attr,
1247 &sensor_dev_attr_in12_max.dev_attr.attr,
1248 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1252 &sensor_dev_attr_in13_input.dev_attr.attr,
1253 &sensor_dev_attr_in13_min.dev_attr.attr,
1254 &sensor_dev_attr_in13_max.dev_attr.attr,
1255 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1259 &sensor_dev_attr_in14_input.dev_attr.attr,
1260 &sensor_dev_attr_in14_min.dev_attr.attr,
1261 &sensor_dev_attr_in14_max.dev_attr.attr,
1262 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1267 static const struct attribute_group nct6775_group_in[15] = {
1268 { .attrs = nct6775_attributes_in[0] },
1269 { .attrs = nct6775_attributes_in[1] },
1270 { .attrs = nct6775_attributes_in[2] },
1271 { .attrs = nct6775_attributes_in[3] },
1272 { .attrs = nct6775_attributes_in[4] },
1273 { .attrs = nct6775_attributes_in[5] },
1274 { .attrs = nct6775_attributes_in[6] },
1275 { .attrs = nct6775_attributes_in[7] },
1276 { .attrs = nct6775_attributes_in[8] },
1277 { .attrs = nct6775_attributes_in[9] },
1278 { .attrs = nct6775_attributes_in[10] },
1279 { .attrs = nct6775_attributes_in[11] },
1280 { .attrs = nct6775_attributes_in[12] },
1281 { .attrs = nct6775_attributes_in[13] },
1282 { .attrs = nct6775_attributes_in[14] },
1286 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1288 struct nct6775_data *data = nct6775_update_device(dev);
1289 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1290 int nr = sattr->index;
1291 return sprintf(buf, "%d\n", data->rpm[nr]);
1295 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1297 struct nct6775_data *data = nct6775_update_device(dev);
1298 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1299 int nr = sattr->index;
1300 return sprintf(buf, "%d\n",
1301 data->fan_from_reg_min(data->fan_min[nr],
1302 data->fan_div[nr]));
1306 show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1308 struct nct6775_data *data = nct6775_update_device(dev);
1309 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1310 int nr = sattr->index;
1311 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1315 store_fan_min(struct device *dev, struct device_attribute *attr,
1316 const char *buf, size_t count)
1318 struct nct6775_data *data = dev_get_drvdata(dev);
1319 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1320 int nr = sattr->index;
1326 err = kstrtoul(buf, 10, &val);
1330 mutex_lock(&data->update_lock);
1331 if (!data->has_fan_div) {
1333 * Only NCT6776F for now, so we know that this is a 13 bit
1341 val = 1350000U / val;
1342 val = (val & 0x1f) | ((val << 3) & 0xff00);
1344 data->fan_min[nr] = val;
1345 goto write_min; /* Leave fan divider alone */
1348 /* No min limit, alarm disabled */
1349 data->fan_min[nr] = 255;
1350 new_div = data->fan_div[nr]; /* No change */
1351 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1354 reg = 1350000U / val;
1355 if (reg >= 128 * 255) {
1357 * Speed below this value cannot possibly be represented,
1358 * even with the highest divider (128)
1360 data->fan_min[nr] = 254;
1361 new_div = 7; /* 128 == (1 << 7) */
1363 "fan%u low limit %lu below minimum %u, set to minimum\n",
1364 nr + 1, val, data->fan_from_reg_min(254, 7));
1367 * Speed above this value cannot possibly be represented,
1368 * even with the lowest divider (1)
1370 data->fan_min[nr] = 1;
1371 new_div = 0; /* 1 == (1 << 0) */
1373 "fan%u low limit %lu above maximum %u, set to maximum\n",
1374 nr + 1, val, data->fan_from_reg_min(1, 0));
1377 * Automatically pick the best divider, i.e. the one such
1378 * that the min limit will correspond to a register value
1379 * in the 96..192 range
1382 while (reg > 192 && new_div < 7) {
1386 data->fan_min[nr] = reg;
1391 * Write both the fan clock divider (if it changed) and the new
1392 * fan min (unconditionally)
1394 if (new_div != data->fan_div[nr]) {
1395 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1396 nr + 1, div_from_reg(data->fan_div[nr]),
1397 div_from_reg(new_div));
1398 data->fan_div[nr] = new_div;
1399 nct6775_write_fan_div_common(dev, data, nr);
1400 /* Give the chip time to sample a new speed value */
1401 data->last_updated = jiffies;
1405 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1407 mutex_unlock(&data->update_lock);
1412 static struct sensor_device_attribute sda_fan_input[] = {
1413 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
1414 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
1415 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
1416 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
1417 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
1420 static struct sensor_device_attribute sda_fan_alarm[] = {
1421 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE),
1422 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 1),
1423 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 2),
1424 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 3),
1425 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 4),
1428 static struct sensor_device_attribute sda_fan_min[] = {
1429 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
1431 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
1433 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
1435 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
1437 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
1441 static struct sensor_device_attribute sda_fan_div[] = {
1442 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
1443 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
1444 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
1445 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
1446 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
1450 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1452 struct nct6775_data *data = nct6775_update_device(dev);
1453 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1454 int nr = sattr->index;
1455 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1459 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1461 struct nct6775_data *data = nct6775_update_device(dev);
1462 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1464 int index = sattr->index;
1466 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1470 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1473 struct nct6775_data *data = dev_get_drvdata(dev);
1474 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1476 int index = sattr->index;
1480 err = kstrtol(buf, 10, &val);
1484 mutex_lock(&data->update_lock);
1485 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1486 nct6775_write_temp(data, data->reg_temp[index][nr],
1487 data->temp[index][nr]);
1488 mutex_unlock(&data->update_lock);
1493 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1495 struct nct6775_data *data = nct6775_update_device(dev);
1496 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1498 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
1502 store_temp_offset(struct device *dev, struct device_attribute *attr,
1503 const char *buf, size_t count)
1505 struct nct6775_data *data = dev_get_drvdata(dev);
1506 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1507 int nr = sattr->index;
1511 err = kstrtol(buf, 10, &val);
1515 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1517 mutex_lock(&data->update_lock);
1518 data->temp_offset[nr] = val;
1519 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
1520 mutex_unlock(&data->update_lock);
1526 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
1528 struct nct6775_data *data = nct6775_update_device(dev);
1529 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1530 int nr = sattr->index;
1531 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
1535 store_temp_type(struct device *dev, struct device_attribute *attr,
1536 const char *buf, size_t count)
1538 struct nct6775_data *data = nct6775_update_device(dev);
1539 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1540 int nr = sattr->index;
1543 u8 vbat, diode, bit;
1545 err = kstrtoul(buf, 10, &val);
1549 if (val != 1 && val != 3 && val != 4)
1552 mutex_lock(&data->update_lock);
1554 data->temp_type[nr] = val;
1555 vbat = nct6775_read_value(data, data->REG_VBAT) & ~(0x02 << nr);
1556 diode = nct6775_read_value(data, data->REG_DIODE) & ~(0x02 << nr);
1559 case 1: /* CPU diode (diode, current mode) */
1563 case 3: /* diode, voltage mode */
1566 case 4: /* thermistor */
1569 nct6775_write_value(data, data->REG_VBAT, vbat);
1570 nct6775_write_value(data, data->REG_DIODE, diode);
1572 mutex_unlock(&data->update_lock);
1576 static struct sensor_device_attribute_2 sda_temp_input[] = {
1577 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
1578 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
1579 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0),
1580 SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0),
1581 SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0),
1582 SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0),
1583 SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0),
1584 SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0),
1585 SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0),
1586 SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0),
1589 static struct sensor_device_attribute sda_temp_label[] = {
1590 SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
1591 SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
1592 SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
1593 SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
1594 SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
1595 SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
1596 SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6),
1597 SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7),
1598 SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8),
1599 SENSOR_ATTR(temp10_label, S_IRUGO, show_temp_label, NULL, 9),
1602 static struct sensor_device_attribute_2 sda_temp_max[] = {
1603 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1605 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1607 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1609 SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1611 SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1613 SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1615 SENSOR_ATTR_2(temp7_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1617 SENSOR_ATTR_2(temp8_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1619 SENSOR_ATTR_2(temp9_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1621 SENSOR_ATTR_2(temp10_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1625 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1626 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1628 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1630 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1632 SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1634 SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1636 SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1638 SENSOR_ATTR_2(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1640 SENSOR_ATTR_2(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1642 SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1644 SENSOR_ATTR_2(temp10_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1648 static struct sensor_device_attribute sda_temp_offset[] = {
1649 SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1650 store_temp_offset, 0),
1651 SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1652 store_temp_offset, 1),
1653 SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1654 store_temp_offset, 2),
1655 SENSOR_ATTR(temp4_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1656 store_temp_offset, 3),
1657 SENSOR_ATTR(temp5_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1658 store_temp_offset, 4),
1659 SENSOR_ATTR(temp6_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1660 store_temp_offset, 5),
1663 static struct sensor_device_attribute sda_temp_type[] = {
1664 SENSOR_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type,
1665 store_temp_type, 0),
1666 SENSOR_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type,
1667 store_temp_type, 1),
1668 SENSOR_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type,
1669 store_temp_type, 2),
1670 SENSOR_ATTR(temp4_type, S_IRUGO | S_IWUSR, show_temp_type,
1671 store_temp_type, 3),
1672 SENSOR_ATTR(temp5_type, S_IRUGO | S_IWUSR, show_temp_type,
1673 store_temp_type, 4),
1674 SENSOR_ATTR(temp6_type, S_IRUGO | S_IWUSR, show_temp_type,
1675 store_temp_type, 5),
1678 static struct sensor_device_attribute sda_temp_alarm[] = {
1679 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
1681 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
1682 TEMP_ALARM_BASE + 1),
1683 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
1684 TEMP_ALARM_BASE + 2),
1685 SENSOR_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL,
1686 TEMP_ALARM_BASE + 3),
1687 SENSOR_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL,
1688 TEMP_ALARM_BASE + 4),
1689 SENSOR_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL,
1690 TEMP_ALARM_BASE + 5),
1693 #define NUM_TEMP_ALARM ARRAY_SIZE(sda_temp_alarm)
1696 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
1698 struct nct6775_data *data = nct6775_update_device(dev);
1699 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1701 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
1705 store_pwm_mode(struct device *dev, struct device_attribute *attr,
1706 const char *buf, size_t count)
1708 struct nct6775_data *data = dev_get_drvdata(dev);
1709 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1710 int nr = sattr->index;
1715 err = kstrtoul(buf, 10, &val);
1722 /* Setting DC mode is not supported for all chips/channels */
1723 if (data->REG_PWM_MODE[nr] == 0) {
1729 mutex_lock(&data->update_lock);
1730 data->pwm_mode[nr] = val;
1731 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
1732 reg &= ~data->PWM_MODE_MASK[nr];
1734 reg |= data->PWM_MODE_MASK[nr];
1735 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
1736 mutex_unlock(&data->update_lock);
1741 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1743 struct nct6775_data *data = nct6775_update_device(dev);
1744 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1746 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
1750 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1752 struct nct6775_data *data = nct6775_update_device(dev);
1753 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1755 int index = sattr->index;
1759 * For automatic fan control modes, show current pwm readings.
1760 * Otherwise, show the configured value.
1762 if (index == 0 && data->pwm_enable[nr] > 1)
1763 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
1765 pwm = data->pwm[index][nr];
1767 return sprintf(buf, "%d\n", pwm);
1771 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
1774 struct nct6775_data *data = dev_get_drvdata(dev);
1775 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1777 int index = sattr->index;
1779 int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
1781 = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
1784 err = kstrtoul(buf, 10, &val);
1787 val = SENSORS_LIMIT(val, minval[index], maxval[index]);
1789 mutex_lock(&data->update_lock);
1790 data->pwm[index][nr] = val;
1791 nct6775_write_value(data, data->REG_PWM[index][nr], val);
1792 mutex_unlock(&data->update_lock);
1796 /* Returns 0 if OK, -EINVAL otherwise */
1797 static int check_trip_points(struct nct6775_data *data, int nr)
1801 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1802 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
1805 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1806 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
1809 /* validate critical temperature and pwm if enabled (pwm > 0) */
1810 if (data->auto_pwm[nr][data->auto_pwm_num]) {
1811 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
1812 data->auto_temp[nr][data->auto_pwm_num] ||
1813 data->auto_pwm[nr][data->auto_pwm_num - 1] >
1814 data->auto_pwm[nr][data->auto_pwm_num])
1821 store_pwm_enable(struct device *dev, struct device_attribute *attr,
1822 const char *buf, size_t count)
1824 struct nct6775_data *data = dev_get_drvdata(dev);
1825 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1826 int nr = sattr->index;
1831 err = kstrtoul(buf, 10, &val);
1838 if (val == 4 && data->kind != nct6775)
1841 if (val == 5 && check_trip_points(data, nr)) {
1842 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
1843 dev_err(dev, "Adjust trip points and try again\n");
1847 mutex_lock(&data->update_lock);
1848 data->pwm_enable[nr] = val;
1851 * turn off pwm control: select manual mode, set pwm to maximum
1853 data->pwm[0][nr] = 255;
1854 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
1856 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1858 reg |= pwm_enable_to_reg(val) << 4;
1859 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1860 mutex_unlock(&data->update_lock);
1865 show_pwm_temp(struct device *dev, struct device_attribute *attr, char *buf)
1867 struct nct6775_data *data = nct6775_update_device(dev);
1868 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1869 int nr = sattr->index;
1871 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->pwm_temp[nr]));
1875 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
1877 struct nct6775_data *data = nct6775_update_device(dev);
1878 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1880 return sprintf(buf, "%d\n",
1881 data->pwm_temp_sel[sattr->index][sattr->nr]);
1885 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
1886 const char *buf, size_t count)
1888 struct nct6775_data *data = nct6775_update_device(dev);
1889 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1891 int index = sattr->index;
1896 err = kstrtoul(buf, 10, &val);
1899 if (val == 0 || val > 0x1f)
1902 val = SENSORS_LIMIT(val, 1, data->temp_label_num - 1);
1904 if (!strlen(data->temp_label[val]))
1907 mutex_lock(&data->update_lock);
1908 data->pwm_temp_sel[index][nr] = val;
1909 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
1912 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
1913 mutex_unlock(&data->update_lock);
1919 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
1921 struct nct6775_data *data = nct6775_update_device(dev);
1922 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1924 return sprintf(buf, "%d\n",
1925 data->target_temp[sattr->index] * 1000);
1929 store_target_temp(struct device *dev, struct device_attribute *attr,
1930 const char *buf, size_t count)
1932 struct nct6775_data *data = dev_get_drvdata(dev);
1933 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1934 int nr = sattr->index;
1938 err = kstrtol(buf, 10, &val);
1942 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
1944 mutex_lock(&data->update_lock);
1945 data->target_temp[nr] = val;
1946 nct6775_write_value(data, data->REG_TARGET[nr], val);
1947 mutex_unlock(&data->update_lock);
1952 show_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1955 struct nct6775_data *data = nct6775_update_device(dev);
1956 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1958 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1959 int tolerance = data->tolerance[nr][point];
1960 int temp = data->auto_temp[nr][sattr->index];
1962 return sprintf(buf, "%d\n", (temp - tolerance) * 1000);
1966 store_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
1967 const char *buf, size_t count)
1969 struct nct6775_data *data = dev_get_drvdata(dev);
1970 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1972 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
1976 int maxlimit[2][3] = { { 15, 7, 63 }, { 15, 7, 7 } };
1977 int mask[] = { 0x0f, 0x07, 0x07 };
1980 err = kstrtol(buf, 10, &val);
1984 temp = data->auto_temp[nr][sattr->index];
1985 val = temp - DIV_ROUND_CLOSEST(val, 1000);
1987 /* Limit tolerance as needed */
1988 val = SENSORS_LIMIT(val, 0, maxlimit[point][data->kind]);
1990 mutex_lock(&data->update_lock);
1992 nct6775_write_value(data,
1993 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
1996 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1997 reg = (reg & ~mask[nr]) | (val & mask[nr]);
1998 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1999 if (data->kind == nct6779) {
2000 reg = nct6775_read_value(data,
2001 NCT6779_REG_TOLERANCE_H[nr]);
2002 reg = (reg & 0x70) | ((val & 0x38) << 1);
2003 nct6775_write_value(data,
2004 NCT6779_REG_TOLERANCE_H[nr], reg);
2008 data->tolerance[nr][point] = val;
2009 mutex_unlock(&data->update_lock);
2013 static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
2014 static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
2015 static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
2016 static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0);
2017 static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0);
2019 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2021 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2023 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2025 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2027 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2030 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2031 store_pwm_enable, 0);
2032 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2033 store_pwm_enable, 1);
2034 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2035 store_pwm_enable, 2);
2036 static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2037 store_pwm_enable, 3);
2038 static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2039 store_pwm_enable, 4);
2041 static SENSOR_DEVICE_ATTR_2(pwm1_temp_sel, S_IWUSR | S_IRUGO,
2042 show_pwm_temp_sel, store_pwm_temp_sel, 0, 0);
2043 static SENSOR_DEVICE_ATTR_2(pwm2_temp_sel, S_IWUSR | S_IRUGO,
2044 show_pwm_temp_sel, store_pwm_temp_sel, 1, 0);
2045 static SENSOR_DEVICE_ATTR_2(pwm3_temp_sel, S_IWUSR | S_IRUGO,
2046 show_pwm_temp_sel, store_pwm_temp_sel, 2, 0);
2047 static SENSOR_DEVICE_ATTR_2(pwm4_temp_sel, S_IWUSR | S_IRUGO,
2048 show_pwm_temp_sel, store_pwm_temp_sel, 3, 0);
2049 static SENSOR_DEVICE_ATTR_2(pwm5_temp_sel, S_IWUSR | S_IRUGO,
2050 show_pwm_temp_sel, store_pwm_temp_sel, 4, 0);
2052 static SENSOR_DEVICE_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
2053 store_target_temp, 0);
2054 static SENSOR_DEVICE_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
2055 store_target_temp, 1);
2056 static SENSOR_DEVICE_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
2057 store_target_temp, 2);
2058 static SENSOR_DEVICE_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
2059 store_target_temp, 3);
2060 static SENSOR_DEVICE_ATTR(pwm5_target, S_IWUSR | S_IRUGO, show_target_temp,
2061 store_target_temp, 4);
2063 /* Monitored pwm temperatures */
2064 static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO, show_pwm_temp, NULL, 0);
2065 static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO, show_pwm_temp, NULL, 1);
2066 static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO, show_pwm_temp, NULL, 2);
2067 static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO, show_pwm_temp, NULL, 3);
2068 static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO, show_pwm_temp, NULL, 4);
2070 /* Smart Fan registers */
2073 show_pwm_sel_enable(struct device *dev, struct device_attribute *attr,
2076 struct nct6775_data *data = nct6775_update_device(dev);
2077 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2079 return sprintf(buf, "%d\n",
2080 data->pwm_sel_enable[sattr->index][sattr->nr]);
2084 store_pwm_sel_enable(struct device *dev, struct device_attribute *attr,
2085 const char *buf, size_t count)
2087 struct nct6775_data *data = dev_get_drvdata(dev);
2088 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2090 int index = sattr->index;
2095 err = kstrtoul(buf, 10, &val);
2102 mutex_lock(&data->update_lock);
2103 data->pwm_sel_enable[index][nr] = val;
2104 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
2108 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
2109 mutex_unlock(&data->update_lock);
2114 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
2116 struct nct6775_data *data = nct6775_update_device(dev);
2117 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2119 int index = sattr->index;
2121 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
2125 store_weight_temp(struct device *dev, struct device_attribute *attr,
2126 const char *buf, size_t count)
2128 struct nct6775_data *data = dev_get_drvdata(dev);
2129 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2131 int index = sattr->index;
2135 err = kstrtoul(buf, 10, &val);
2139 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
2141 mutex_lock(&data->update_lock);
2142 data->weight_temp[index][nr] = val;
2143 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
2144 mutex_unlock(&data->update_lock);
2148 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output_enable, S_IWUSR | S_IRUGO,
2149 show_pwm_sel_enable, store_pwm_sel_enable, 0, 0);
2150 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output_enable, S_IWUSR | S_IRUGO,
2151 show_pwm_sel_enable, store_pwm_sel_enable, 1, 0);
2152 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output_enable, S_IWUSR | S_IRUGO,
2153 show_pwm_sel_enable, store_pwm_sel_enable, 2, 0);
2154 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output_enable, S_IWUSR | S_IRUGO,
2155 show_pwm_sel_enable, store_pwm_sel_enable, 3, 0);
2156 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output_enable, S_IWUSR | S_IRUGO,
2157 show_pwm_sel_enable, store_pwm_sel_enable, 4, 0);
2159 static SENSOR_DEVICE_ATTR_2(pwm1_weight_enable, S_IWUSR | S_IRUGO,
2160 show_pwm_sel_enable, store_pwm_sel_enable, 0, 1);
2161 static SENSOR_DEVICE_ATTR_2(pwm2_weight_enable, S_IWUSR | S_IRUGO,
2162 show_pwm_sel_enable, store_pwm_sel_enable, 1, 1);
2163 static SENSOR_DEVICE_ATTR_2(pwm3_weight_enable, S_IWUSR | S_IRUGO,
2164 show_pwm_sel_enable, store_pwm_sel_enable, 2, 1);
2165 static SENSOR_DEVICE_ATTR_2(pwm4_weight_enable, S_IWUSR | S_IRUGO,
2166 show_pwm_sel_enable, store_pwm_sel_enable, 3, 1);
2167 static SENSOR_DEVICE_ATTR_2(pwm5_weight_enable, S_IWUSR | S_IRUGO,
2168 show_pwm_sel_enable, store_pwm_sel_enable, 4, 1);
2170 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO,
2171 show_pwm_temp_sel, store_pwm_temp_sel, 0, 1);
2172 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO,
2173 show_pwm_temp_sel, store_pwm_temp_sel, 1, 1);
2174 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO,
2175 show_pwm_temp_sel, store_pwm_temp_sel, 2, 1);
2176 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO,
2177 show_pwm_temp_sel, store_pwm_temp_sel, 3, 1);
2178 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO,
2179 show_pwm_temp_sel, store_pwm_temp_sel, 4, 1);
2181 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO,
2182 show_weight_temp, store_weight_temp, 0, 0);
2183 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO,
2184 show_weight_temp, store_weight_temp, 1, 0);
2185 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO,
2186 show_weight_temp, store_weight_temp, 2, 0);
2187 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO,
2188 show_weight_temp, store_weight_temp, 3, 0);
2189 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO,
2190 show_weight_temp, store_weight_temp, 4, 0);
2192 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2193 show_weight_temp, store_weight_temp, 0, 1);
2194 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2195 show_weight_temp, store_weight_temp, 1, 1);
2196 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2197 show_weight_temp, store_weight_temp, 2, 1);
2198 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2199 show_weight_temp, store_weight_temp, 3, 1);
2200 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2201 show_weight_temp, store_weight_temp, 4, 1);
2203 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO,
2204 show_weight_temp, store_weight_temp, 0, 2);
2205 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO,
2206 show_weight_temp, store_weight_temp, 1, 2);
2207 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO,
2208 show_weight_temp, store_weight_temp, 2, 2);
2209 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO,
2210 show_weight_temp, store_weight_temp, 3, 2);
2211 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO,
2212 show_weight_temp, store_weight_temp, 4, 2);
2214 static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO,
2215 show_pwm, store_pwm, 0, 5);
2216 static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO,
2217 show_pwm, store_pwm, 1, 5);
2218 static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO,
2219 show_pwm, store_pwm, 2, 5);
2220 static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO,
2221 show_pwm, store_pwm, 3, 5);
2222 static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO,
2223 show_pwm, store_pwm, 4, 5);
2225 /* duty_base is not supported on all chips */
2226 static struct sensor_device_attribute_2 sda_weight_duty_base[] = {
2227 SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO,
2228 show_pwm, store_pwm, 0, 6),
2229 SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO,
2230 show_pwm, store_pwm, 1, 6),
2231 SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO,
2232 show_pwm, store_pwm, 2, 6),
2233 SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO,
2234 show_pwm, store_pwm, 3, 6),
2235 SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO,
2236 show_pwm, store_pwm, 4, 6),
2240 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2242 struct nct6775_data *data = nct6775_update_device(dev);
2243 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2245 int index = sattr->index;
2247 return sprintf(buf, "%d\n",
2248 step_time_from_reg(data->fan_time[index][nr],
2249 data->pwm_mode[nr]));
2253 store_fan_time(struct device *dev, struct device_attribute *attr,
2254 const char *buf, size_t count)
2256 struct nct6775_data *data = dev_get_drvdata(dev);
2257 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2259 int index = sattr->index;
2263 err = kstrtoul(buf, 10, &val);
2267 val = step_time_to_reg(val, data->pwm_mode[nr]);
2268 mutex_lock(&data->update_lock);
2269 data->fan_time[index][nr] = val;
2270 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2271 mutex_unlock(&data->update_lock);
2276 show_name(struct device *dev, struct device_attribute *attr, char *buf)
2278 struct nct6775_data *data = dev_get_drvdata(dev);
2280 return sprintf(buf, "%s\n", data->name);
2283 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
2285 static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2286 store_fan_time, 0, 0);
2287 static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2288 store_fan_time, 1, 0);
2289 static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2290 store_fan_time, 2, 0);
2291 static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2292 store_fan_time, 3, 0);
2293 static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2294 store_fan_time, 4, 0);
2296 static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2297 store_fan_time, 0, 1);
2298 static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2299 store_fan_time, 1, 1);
2300 static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2301 store_fan_time, 2, 1);
2302 static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2303 store_fan_time, 3, 1);
2304 static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2305 store_fan_time, 4, 1);
2307 static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
2308 show_fan_time, store_fan_time, 0, 2);
2309 static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
2310 show_fan_time, store_fan_time, 1, 2);
2311 static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
2312 show_fan_time, store_fan_time, 2, 2);
2313 static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
2314 show_fan_time, store_fan_time, 3, 2);
2315 static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
2316 show_fan_time, store_fan_time, 4, 2);
2318 static SENSOR_DEVICE_ATTR_2(pwm1_start_output, S_IWUSR | S_IRUGO, show_pwm,
2320 static SENSOR_DEVICE_ATTR_2(pwm2_start_output, S_IWUSR | S_IRUGO, show_pwm,
2322 static SENSOR_DEVICE_ATTR_2(pwm3_start_output, S_IWUSR | S_IRUGO, show_pwm,
2324 static SENSOR_DEVICE_ATTR_2(pwm4_start_output, S_IWUSR | S_IRUGO, show_pwm,
2326 static SENSOR_DEVICE_ATTR_2(pwm5_start_output, S_IWUSR | S_IRUGO, show_pwm,
2329 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2331 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2333 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2335 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2337 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2340 /* max_output is not supported on all chips */
2341 static struct sensor_device_attribute_2 sda_max_output[] = {
2342 SENSOR_ATTR_2(pwm1_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2344 SENSOR_ATTR_2(pwm2_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2346 SENSOR_ATTR_2(pwm3_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2348 SENSOR_ATTR_2(pwm4_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2350 SENSOR_ATTR_2(pwm5_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2354 /* step_output is not supported on all chips */
2355 static struct sensor_device_attribute_2 sda_step_output[] = {
2356 SENSOR_ATTR_2(pwm1_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2358 SENSOR_ATTR_2(pwm2_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2360 SENSOR_ATTR_2(pwm3_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2362 SENSOR_ATTR_2(pwm4_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2364 SENSOR_ATTR_2(pwm5_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2368 static struct attribute *nct6775_attributes_pwm[5][20] = {
2370 &sensor_dev_attr_temp11_input.dev_attr.attr,
2371 &sensor_dev_attr_pwm1.dev_attr.attr,
2372 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
2373 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2374 &sensor_dev_attr_pwm1_stop_output_enable.dev_attr.attr,
2375 &sensor_dev_attr_pwm1_weight_enable.dev_attr.attr,
2376 &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr,
2377 &sensor_dev_attr_pwm1_target.dev_attr.attr,
2378 &sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
2379 &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
2380 &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
2381 &sensor_dev_attr_pwm1_start_output.dev_attr.attr,
2382 &sensor_dev_attr_pwm1_stop_output.dev_attr.attr,
2383 &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr,
2384 &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr,
2385 &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr,
2386 &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr,
2387 &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr,
2391 &sensor_dev_attr_temp12_input.dev_attr.attr,
2392 &sensor_dev_attr_pwm2.dev_attr.attr,
2393 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
2394 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2395 &sensor_dev_attr_pwm2_stop_output_enable.dev_attr.attr,
2396 &sensor_dev_attr_pwm2_weight_enable.dev_attr.attr,
2397 &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr,
2398 &sensor_dev_attr_pwm2_target.dev_attr.attr,
2399 &sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
2400 &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
2401 &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
2402 &sensor_dev_attr_pwm2_start_output.dev_attr.attr,
2403 &sensor_dev_attr_pwm2_stop_output.dev_attr.attr,
2404 &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr,
2405 &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr,
2406 &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr,
2407 &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr,
2408 &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr,
2412 &sensor_dev_attr_temp13_input.dev_attr.attr,
2413 &sensor_dev_attr_pwm3.dev_attr.attr,
2414 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
2415 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
2416 &sensor_dev_attr_pwm3_stop_output_enable.dev_attr.attr,
2417 &sensor_dev_attr_pwm3_weight_enable.dev_attr.attr,
2418 &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr,
2419 &sensor_dev_attr_pwm3_target.dev_attr.attr,
2420 &sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
2421 &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
2422 &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
2423 &sensor_dev_attr_pwm3_start_output.dev_attr.attr,
2424 &sensor_dev_attr_pwm3_stop_output.dev_attr.attr,
2425 &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr,
2426 &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr,
2427 &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr,
2428 &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr,
2429 &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr,
2433 &sensor_dev_attr_temp14_input.dev_attr.attr,
2434 &sensor_dev_attr_pwm4.dev_attr.attr,
2435 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
2436 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
2437 &sensor_dev_attr_pwm4_stop_output_enable.dev_attr.attr,
2438 &sensor_dev_attr_pwm4_weight_enable.dev_attr.attr,
2439 &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr,
2440 &sensor_dev_attr_pwm4_target.dev_attr.attr,
2441 &sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
2442 &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
2443 &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
2444 &sensor_dev_attr_pwm4_start_output.dev_attr.attr,
2445 &sensor_dev_attr_pwm4_stop_output.dev_attr.attr,
2446 &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr,
2447 &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr,
2448 &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr,
2449 &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr,
2450 &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr,
2454 &sensor_dev_attr_temp15_input.dev_attr.attr,
2455 &sensor_dev_attr_pwm5.dev_attr.attr,
2456 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
2457 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
2458 &sensor_dev_attr_pwm5_stop_output_enable.dev_attr.attr,
2459 &sensor_dev_attr_pwm5_weight_enable.dev_attr.attr,
2460 &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr,
2461 &sensor_dev_attr_pwm5_target.dev_attr.attr,
2462 &sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
2463 &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
2464 &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
2465 &sensor_dev_attr_pwm5_start_output.dev_attr.attr,
2466 &sensor_dev_attr_pwm5_stop_output.dev_attr.attr,
2467 &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr,
2468 &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr,
2469 &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr,
2470 &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr,
2471 &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr,
2476 static const struct attribute_group nct6775_group_pwm[5] = {
2477 { .attrs = nct6775_attributes_pwm[0] },
2478 { .attrs = nct6775_attributes_pwm[1] },
2479 { .attrs = nct6775_attributes_pwm[2] },
2480 { .attrs = nct6775_attributes_pwm[3] },
2481 { .attrs = nct6775_attributes_pwm[4] },
2485 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2487 struct nct6775_data *data = nct6775_update_device(dev);
2488 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2490 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2494 store_auto_pwm(struct device *dev, struct device_attribute *attr,
2495 const char *buf, size_t count)
2497 struct nct6775_data *data = dev_get_drvdata(dev);
2498 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2500 int point = sattr->index;
2505 err = kstrtoul(buf, 10, &val);
2511 if (point == data->auto_pwm_num) {
2512 if (data->kind != nct6775 && !val)
2514 if (data->kind != nct6779 && val)
2518 mutex_lock(&data->update_lock);
2519 data->auto_pwm[nr][point] = val;
2520 if (point < data->auto_pwm_num) {
2521 nct6775_write_value(data,
2522 NCT6775_AUTO_PWM(data, nr, point),
2523 data->auto_pwm[nr][point]);
2525 switch (data->kind) {
2527 /* disable if needed (pwm == 0) */
2528 reg = nct6775_read_value(data,
2529 NCT6775_REG_CRITICAL_ENAB[nr]);
2534 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2538 break; /* always enabled, nothing to do */
2540 nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
2542 reg = nct6775_read_value(data,
2543 NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
2548 nct6775_write_value(data,
2549 NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
2554 mutex_unlock(&data->update_lock);
2559 show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2561 struct nct6775_data *data = nct6775_update_device(dev);
2562 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2564 int point = sattr->index;
2567 * We don't know for sure if the temperature is signed or unsigned.
2568 * Assume it is unsigned.
2570 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2574 store_auto_temp(struct device *dev, struct device_attribute *attr,
2575 const char *buf, size_t count)
2577 struct nct6775_data *data = dev_get_drvdata(dev);
2578 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2580 int point = sattr->index;
2584 err = kstrtoul(buf, 10, &val);
2590 mutex_lock(&data->update_lock);
2591 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2592 if (point < data->auto_pwm_num) {
2593 nct6775_write_value(data,
2594 NCT6775_AUTO_TEMP(data, nr, point),
2595 data->auto_temp[nr][point]);
2597 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2598 data->auto_temp[nr][point]);
2600 mutex_unlock(&data->update_lock);
2605 * The number of auto-point trip points is chip dependent.
2606 * Need to check support while generating/removing attribute files.
2608 static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
2609 SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
2610 show_auto_pwm, store_auto_pwm, 0, 0),
2611 SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
2612 show_auto_temp, store_auto_temp, 0, 0),
2613 SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2614 show_auto_temp_hyst, store_auto_temp_hyst, 0, 0),
2615 SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
2616 show_auto_pwm, store_auto_pwm, 0, 1),
2617 SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
2618 show_auto_temp, store_auto_temp, 0, 1),
2619 SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2620 show_auto_temp_hyst, store_auto_temp_hyst, 0, 1),
2621 SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
2622 show_auto_pwm, store_auto_pwm, 0, 2),
2623 SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
2624 show_auto_temp, store_auto_temp, 0, 2),
2625 SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2626 show_auto_temp_hyst, store_auto_temp_hyst, 0, 2),
2627 SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
2628 show_auto_pwm, store_auto_pwm, 0, 3),
2629 SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
2630 show_auto_temp, store_auto_temp, 0, 3),
2631 SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2632 show_auto_temp_hyst, store_auto_temp_hyst, 0, 3),
2633 SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
2634 show_auto_pwm, store_auto_pwm, 0, 4),
2635 SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
2636 show_auto_temp, store_auto_temp, 0, 4),
2637 SENSOR_ATTR_2(pwm1_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2638 show_auto_temp_hyst, store_auto_temp_hyst, 0, 4),
2639 SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
2640 show_auto_pwm, store_auto_pwm, 0, 5),
2641 SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
2642 show_auto_temp, store_auto_temp, 0, 5),
2643 SENSOR_ATTR_2(pwm1_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2644 show_auto_temp_hyst, store_auto_temp_hyst, 0, 5),
2645 SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
2646 show_auto_pwm, store_auto_pwm, 0, 6),
2647 SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
2648 show_auto_temp, store_auto_temp, 0, 6),
2649 SENSOR_ATTR_2(pwm1_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2650 show_auto_temp_hyst, store_auto_temp_hyst, 0, 6),
2652 SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
2653 show_auto_pwm, store_auto_pwm, 1, 0),
2654 SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
2655 show_auto_temp, store_auto_temp, 1, 0),
2656 SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2657 show_auto_temp_hyst, store_auto_temp_hyst, 1, 0),
2658 SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
2659 show_auto_pwm, store_auto_pwm, 1, 1),
2660 SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
2661 show_auto_temp, store_auto_temp, 1, 1),
2662 SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2663 show_auto_temp_hyst, store_auto_temp_hyst, 1, 1),
2664 SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
2665 show_auto_pwm, store_auto_pwm, 1, 2),
2666 SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
2667 show_auto_temp, store_auto_temp, 1, 2),
2668 SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2669 show_auto_temp_hyst, store_auto_temp_hyst, 1, 2),
2670 SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
2671 show_auto_pwm, store_auto_pwm, 1, 3),
2672 SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
2673 show_auto_temp, store_auto_temp, 1, 3),
2674 SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2675 show_auto_temp_hyst, store_auto_temp_hyst, 1, 3),
2676 SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
2677 show_auto_pwm, store_auto_pwm, 1, 4),
2678 SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
2679 show_auto_temp, store_auto_temp, 1, 4),
2680 SENSOR_ATTR_2(pwm2_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2681 show_auto_temp_hyst, store_auto_temp_hyst, 1, 4),
2682 SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
2683 show_auto_pwm, store_auto_pwm, 1, 5),
2684 SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
2685 show_auto_temp, store_auto_temp, 1, 5),
2686 SENSOR_ATTR_2(pwm2_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2687 show_auto_temp_hyst, store_auto_temp_hyst, 1, 5),
2688 SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
2689 show_auto_pwm, store_auto_pwm, 1, 6),
2690 SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
2691 show_auto_temp, store_auto_temp, 1, 6),
2692 SENSOR_ATTR_2(pwm2_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2693 show_auto_temp_hyst, store_auto_temp_hyst, 1, 6),
2695 SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
2696 show_auto_pwm, store_auto_pwm, 2, 0),
2697 SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
2698 show_auto_temp, store_auto_temp, 2, 0),
2699 SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2700 show_auto_temp_hyst, store_auto_temp_hyst, 2, 0),
2701 SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
2702 show_auto_pwm, store_auto_pwm, 2, 1),
2703 SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
2704 show_auto_temp, store_auto_temp, 2, 1),
2705 SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2706 show_auto_temp_hyst, store_auto_temp_hyst, 2, 1),
2707 SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
2708 show_auto_pwm, store_auto_pwm, 2, 2),
2709 SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
2710 show_auto_temp, store_auto_temp, 2, 2),
2711 SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2712 show_auto_temp_hyst, store_auto_temp_hyst, 2, 2),
2713 SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
2714 show_auto_pwm, store_auto_pwm, 2, 3),
2715 SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
2716 show_auto_temp, store_auto_temp, 2, 3),
2717 SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2718 show_auto_temp_hyst, store_auto_temp_hyst, 2, 3),
2719 SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
2720 show_auto_pwm, store_auto_pwm, 2, 4),
2721 SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
2722 show_auto_temp, store_auto_temp, 2, 4),
2723 SENSOR_ATTR_2(pwm3_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2724 show_auto_temp_hyst, store_auto_temp_hyst, 2, 4),
2725 SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
2726 show_auto_pwm, store_auto_pwm, 2, 5),
2727 SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
2728 show_auto_temp, store_auto_temp, 2, 5),
2729 SENSOR_ATTR_2(pwm3_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2730 show_auto_temp_hyst, store_auto_temp_hyst, 2, 5),
2731 SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
2732 show_auto_pwm, store_auto_pwm, 2, 6),
2733 SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
2734 show_auto_temp, store_auto_temp, 2, 6),
2735 SENSOR_ATTR_2(pwm3_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2736 show_auto_temp_hyst, store_auto_temp_hyst, 2, 6),
2738 SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
2739 show_auto_pwm, store_auto_pwm, 3, 0),
2740 SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
2741 show_auto_temp, store_auto_temp, 3, 0),
2742 SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2743 show_auto_temp_hyst, store_auto_temp_hyst, 3, 0),
2744 SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
2745 show_auto_pwm, store_auto_pwm, 3, 1),
2746 SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
2747 show_auto_temp, store_auto_temp, 3, 1),
2748 SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2749 show_auto_temp_hyst, store_auto_temp_hyst, 3, 1),
2750 SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
2751 show_auto_pwm, store_auto_pwm, 3, 2),
2752 SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
2753 show_auto_temp, store_auto_temp, 3, 2),
2754 SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2755 show_auto_temp_hyst, store_auto_temp_hyst, 3, 2),
2756 SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
2757 show_auto_pwm, store_auto_pwm, 3, 3),
2758 SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
2759 show_auto_temp, store_auto_temp, 3, 3),
2760 SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2761 show_auto_temp_hyst, store_auto_temp_hyst, 3, 3),
2762 SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
2763 show_auto_pwm, store_auto_pwm, 3, 4),
2764 SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
2765 show_auto_temp, store_auto_temp, 3, 4),
2766 SENSOR_ATTR_2(pwm4_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2767 show_auto_temp_hyst, store_auto_temp_hyst, 3, 4),
2768 SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
2769 show_auto_pwm, store_auto_pwm, 3, 5),
2770 SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
2771 show_auto_temp, store_auto_temp, 3, 5),
2772 SENSOR_ATTR_2(pwm4_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2773 show_auto_temp_hyst, store_auto_temp_hyst, 3, 5),
2774 SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
2775 show_auto_pwm, store_auto_pwm, 3, 6),
2776 SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
2777 show_auto_temp, store_auto_temp, 3, 6),
2778 SENSOR_ATTR_2(pwm4_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2779 show_auto_temp_hyst, store_auto_temp_hyst, 3, 6),
2781 SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
2782 show_auto_pwm, store_auto_pwm, 4, 0),
2783 SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
2784 show_auto_temp, store_auto_temp, 4, 0),
2785 SENSOR_ATTR_2(pwm5_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2786 show_auto_temp_hyst, store_auto_temp_hyst, 4, 0),
2787 SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
2788 show_auto_pwm, store_auto_pwm, 4, 1),
2789 SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
2790 show_auto_temp, store_auto_temp, 4, 1),
2791 SENSOR_ATTR_2(pwm5_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2792 show_auto_temp_hyst, store_auto_temp_hyst, 4, 1),
2793 SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
2794 show_auto_pwm, store_auto_pwm, 4, 2),
2795 SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
2796 show_auto_temp, store_auto_temp, 4, 2),
2797 SENSOR_ATTR_2(pwm5_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2798 show_auto_temp_hyst, store_auto_temp_hyst, 4, 2),
2799 SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
2800 show_auto_pwm, store_auto_pwm, 4, 3),
2801 SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
2802 show_auto_temp, store_auto_temp, 4, 3),
2803 SENSOR_ATTR_2(pwm5_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2804 show_auto_temp_hyst, store_auto_temp_hyst, 4, 3),
2805 SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
2806 show_auto_pwm, store_auto_pwm, 4, 4),
2807 SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
2808 show_auto_temp, store_auto_temp, 4, 4),
2809 SENSOR_ATTR_2(pwm5_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2810 show_auto_temp_hyst, store_auto_temp_hyst, 4, 4),
2811 SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
2812 show_auto_pwm, store_auto_pwm, 4, 5),
2813 SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
2814 show_auto_temp, store_auto_temp, 4, 5),
2815 SENSOR_ATTR_2(pwm5_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2816 show_auto_temp_hyst, store_auto_temp_hyst, 4, 5),
2817 SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
2818 show_auto_pwm, store_auto_pwm, 4, 6),
2819 SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
2820 show_auto_temp, store_auto_temp, 4, 6),
2821 SENSOR_ATTR_2(pwm5_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2822 show_auto_temp_hyst, store_auto_temp_hyst, 4, 6),
2826 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
2828 struct nct6775_data *data = dev_get_drvdata(dev);
2829 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
2832 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
2834 /* Case open detection */
2837 clear_caseopen(struct device *dev, struct device_attribute *attr,
2838 const char *buf, size_t count)
2840 struct nct6775_data *data = dev_get_drvdata(dev);
2841 struct nct6775_sio_data *sio_data = dev->platform_data;
2842 int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
2846 if (kstrtoul(buf, 10, &val) || val != 0)
2849 mutex_lock(&data->update_lock);
2852 * Use CR registers to clear caseopen status.
2853 * The CR registers are the same for all chips, and not all chips
2854 * support clearing the caseopen status through "regular" registers.
2856 superio_enter(sio_data->sioreg);
2857 superio_select(sio_data->sioreg, NCT6775_LD_ACPI);
2858 reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
2859 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2860 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2861 reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2862 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2863 superio_exit(sio_data->sioreg);
2865 data->valid = 0; /* Force cache refresh */
2867 mutex_unlock(&data->update_lock);
2872 static struct sensor_device_attribute sda_caseopen[] = {
2873 SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
2874 clear_caseopen, INTRUSION_ALARM_BASE),
2875 SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
2876 clear_caseopen, INTRUSION_ALARM_BASE + 1),
2880 * Driver and device management
2883 static void nct6775_device_remove_files(struct device *dev)
2886 * some entries in the following arrays may not have been used in
2887 * device_create_file(), but device_remove_file() will ignore them
2890 struct nct6775_data *data = dev_get_drvdata(dev);
2892 for (i = 0; i < data->pwm_num; i++)
2893 sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
2895 for (i = 0; i < ARRAY_SIZE(sda_max_output); i++)
2896 device_remove_file(dev, &sda_max_output[i].dev_attr);
2898 for (i = 0; i < ARRAY_SIZE(sda_step_output); i++)
2899 device_remove_file(dev, &sda_max_output[i].dev_attr);
2901 for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++)
2902 device_remove_file(dev, &sda_weight_duty_base[i].dev_attr);
2904 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)
2905 device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
2907 for (i = 0; i < data->in_num; i++)
2908 sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
2910 for (i = 0; i < 5; i++) {
2911 device_remove_file(dev, &sda_fan_input[i].dev_attr);
2912 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
2913 device_remove_file(dev, &sda_fan_div[i].dev_attr);
2914 device_remove_file(dev, &sda_fan_min[i].dev_attr);
2916 for (i = 0; i < NUM_TEMP; i++) {
2917 if (!(data->have_temp & (1 << i)))
2919 device_remove_file(dev, &sda_temp_input[i].dev_attr);
2920 device_remove_file(dev, &sda_temp_label[i].dev_attr);
2921 device_remove_file(dev, &sda_temp_max[i].dev_attr);
2922 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
2923 if (!(data->have_temp_fixed & (1 << i)))
2925 device_remove_file(dev, &sda_temp_type[i].dev_attr);
2926 device_remove_file(dev, &sda_temp_offset[i].dev_attr);
2927 if (i >= NUM_TEMP_ALARM)
2929 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
2932 device_remove_file(dev, &sda_caseopen[0].dev_attr);
2933 device_remove_file(dev, &sda_caseopen[1].dev_attr);
2935 device_remove_file(dev, &dev_attr_name);
2936 device_remove_file(dev, &dev_attr_cpu0_vid);
2939 /* Get the monitoring functions started */
2940 static inline void __devinit nct6775_init_device(struct nct6775_data *data)
2945 /* Start monitoring if needed */
2946 if (data->REG_CONFIG) {
2947 tmp = nct6775_read_value(data, data->REG_CONFIG);
2949 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
2952 /* Enable temperature sensors if needed */
2953 for (i = 0; i < NUM_TEMP; i++) {
2954 if (!(data->have_temp & (1 << i)))
2956 if (!data->reg_temp_config[i])
2958 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
2960 nct6775_write_value(data, data->reg_temp_config[i],
2964 /* Enable VBAT monitoring if needed */
2965 tmp = nct6775_read_value(data, data->REG_VBAT);
2967 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
2969 diode = nct6775_read_value(data, data->REG_DIODE);
2971 for (i = 0; i < data->temp_fixed_num; i++) {
2972 if (!(data->have_temp_fixed & (1 << i)))
2974 if ((tmp & (0x02 << i))) /* diode */
2975 data->temp_type[i] = 3 - ((diode >> i) & 0x02);
2976 else /* thermistor */
2977 data->temp_type[i] = 4;
2981 static void __devinit
2982 nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data,
2983 struct nct6775_data *data)
2986 bool fan3pin, fan3min, fan4pin, fan4min, fan5pin;
2987 bool pwm3pin, pwm4pin, pwm5pin;
2989 superio_enter(sio_data->sioreg);
2991 /* fan4 and fan5 share some pins with the GPIO and serial flash */
2992 if (data->kind == nct6775) {
2993 regval = superio_inb(sio_data->sioreg, 0x2c);
2995 fan3pin = regval & (1 << 6);
2997 pwm3pin = regval & (1 << 7);
2999 /* On NCT6775, fan4 shares pins with the fdc interface */
3000 fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80);
3005 } else if (data->kind == nct6776) {
3006 bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
3008 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3009 regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
3014 fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
3019 fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01;
3024 fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02;
3031 } else { /* NCT6779D */
3032 regval = superio_inb(sio_data->sioreg, 0x1c);
3034 fan3pin = !(regval & (1 << 5));
3035 fan4pin = !(regval & (1 << 6));
3036 fan5pin = !(regval & (1 << 7));
3038 pwm3pin = !(regval & (1 << 0));
3039 pwm4pin = !(regval & (1 << 1));
3040 pwm5pin = !(regval & (1 << 2));
3046 superio_exit(sio_data->sioreg);
3048 data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */
3049 data->has_fan |= fan3pin << 2;
3050 data->has_fan_min |= fan3min << 2;
3052 data->has_fan |= (fan4pin << 3) | (fan5pin << 4);
3053 data->has_fan_min |= (fan4min << 3) | (fan5pin << 4);
3055 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4);
3058 static int __devinit nct6775_probe(struct platform_device *pdev)
3060 struct device *dev = &pdev->dev;
3061 struct nct6775_sio_data *sio_data = dev->platform_data;
3062 struct nct6775_data *data;
3063 struct resource *res;
3065 int src, mask, available;
3066 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
3068 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
3069 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
3071 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
3072 (unsigned long)res->start,
3073 (unsigned long)res->start + IOREGION_LENGTH - 1);
3077 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3084 data->kind = sio_data->kind;
3085 data->addr = res->start;
3086 mutex_init(&data->lock);
3087 mutex_init(&data->update_lock);
3088 data->name = nct6775_device_names[data->kind];
3089 platform_set_drvdata(pdev, data);
3091 switch (data->kind) {
3095 data->auto_pwm_num = 6;
3096 data->has_fan_div = true;
3097 data->temp_fixed_num = 3;
3099 data->ALARM_BITS = NCT6775_ALARM_BITS;
3101 data->fan_from_reg = fan_from_reg16;
3102 data->fan_from_reg_min = fan_from_reg8;
3104 data->temp_label = nct6775_temp_label;
3105 data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
3107 data->REG_CONFIG = NCT6775_REG_CONFIG;
3108 data->REG_VBAT = NCT6775_REG_VBAT;
3109 data->REG_DIODE = NCT6775_REG_DIODE;
3110 data->REG_VIN = NCT6775_REG_IN;
3111 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3112 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3113 data->REG_TARGET = NCT6775_REG_TARGET;
3114 data->REG_FAN = NCT6775_REG_FAN;
3115 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3116 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
3117 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3118 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3119 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3120 data->REG_PWM[0] = NCT6775_REG_PWM;
3121 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3122 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3123 data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
3124 data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
3125 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3126 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3127 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
3128 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
3129 data->REG_TEMP_ALTERNATE = NCT6775_REG_TEMP_ALTERNATE;
3130 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3131 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3132 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3133 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3134 data->REG_CRITICAL_TEMP_TOLERANCE
3135 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3136 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3137 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3138 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3139 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3140 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3141 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3142 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3143 data->REG_ALARM = NCT6775_REG_ALARM;
3145 reg_temp = NCT6775_REG_TEMP;
3146 reg_temp_over = NCT6775_REG_TEMP_OVER;
3147 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3148 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
3154 data->auto_pwm_num = 4;
3155 data->has_fan_div = false;
3156 data->temp_fixed_num = 3;
3158 data->ALARM_BITS = NCT6776_ALARM_BITS;
3160 data->fan_from_reg = fan_from_reg13;
3161 data->fan_from_reg_min = fan_from_reg13;
3163 data->temp_label = nct6776_temp_label;
3164 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3166 data->REG_CONFIG = NCT6775_REG_CONFIG;
3167 data->REG_VBAT = NCT6775_REG_VBAT;
3168 data->REG_DIODE = NCT6775_REG_DIODE;
3169 data->REG_VIN = NCT6775_REG_IN;
3170 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3171 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3172 data->REG_TARGET = NCT6775_REG_TARGET;
3173 data->REG_FAN = NCT6775_REG_FAN;
3174 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3175 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3176 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3177 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3178 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3179 data->REG_PWM[0] = NCT6775_REG_PWM;
3180 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3181 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3182 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3183 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3184 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3185 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3186 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3187 data->REG_TEMP_ALTERNATE = NCT6776_REG_TEMP_ALTERNATE;
3188 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3189 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3190 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3191 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3192 data->REG_CRITICAL_TEMP_TOLERANCE
3193 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3194 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3195 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3196 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3197 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3198 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3199 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3200 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3201 data->REG_ALARM = NCT6775_REG_ALARM;
3203 reg_temp = NCT6775_REG_TEMP;
3204 reg_temp_over = NCT6775_REG_TEMP_OVER;
3205 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3206 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3212 data->auto_pwm_num = 4;
3213 data->has_fan_div = false;
3214 data->temp_fixed_num = 6;
3216 data->ALARM_BITS = NCT6779_ALARM_BITS;
3218 data->fan_from_reg = fan_from_reg13;
3219 data->fan_from_reg_min = fan_from_reg13;
3221 data->temp_label = nct6779_temp_label;
3222 data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
3224 data->REG_CONFIG = NCT6775_REG_CONFIG;
3225 data->REG_VBAT = NCT6775_REG_VBAT;
3226 data->REG_DIODE = NCT6775_REG_DIODE;
3227 data->REG_VIN = NCT6779_REG_IN;
3228 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3229 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3230 data->REG_TARGET = NCT6775_REG_TARGET;
3231 data->REG_FAN = NCT6779_REG_FAN;
3232 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3233 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3234 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3235 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3236 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3237 data->REG_PWM[0] = NCT6775_REG_PWM;
3238 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3239 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3240 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3241 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3242 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3243 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3244 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3245 data->REG_TEMP_ALTERNATE = NCT6779_REG_TEMP_ALTERNATE;
3246 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3247 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3248 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3249 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3250 data->REG_CRITICAL_TEMP_TOLERANCE
3251 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3252 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3253 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3254 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3255 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3256 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3257 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3258 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3259 data->REG_ALARM = NCT6779_REG_ALARM;
3261 reg_temp = NCT6779_REG_TEMP;
3262 reg_temp_over = NCT6775_REG_TEMP_OVER;
3263 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3264 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3271 data->have_in = (1 << data->in_num) - 1;
3272 data->have_temp = 0;
3275 * On some boards, not all available temperature sources are monitored,
3276 * even though some of the monitoring registers are unused.
3277 * Get list of unused monitoring registers, then detect if any fan
3278 * controls are configured to use unmonitored temperature sources.
3279 * If so, assign the unmonitored temperature sources to available
3280 * monitoring registers.
3284 for (i = 0; i < NUM_REG_TEMP; i++) {
3285 if (reg_temp[i] == 0)
3288 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3289 if (!src || (mask & (1 << src)))
3290 available |= 1 << i;
3296 * Now find unmonitored temperature registers and enable monitoring
3297 * if additional monitoring registers are available.
3299 for (i = 0; i < ARRAY_SIZE(data->REG_TEMP_SEL) && available; i++) {
3302 if (!data->REG_TEMP_SEL[i])
3304 for (j = 0; j < data->pwm_num && available; j++) {
3307 if (!data->REG_TEMP_SEL[i][j])
3309 src = nct6775_read_value(data,
3310 data->REG_TEMP_SEL[i][j]);
3312 if (!src || (mask & (1 << src)))
3314 if (src >= data->temp_label_num ||
3315 !strlen(data->temp_label[src])) {
3317 "Select source %d:%d reg 0x%x invalid (%d)\n",
3318 i, j, data->REG_TEMP_SEL[i][j], src);
3322 index = __ffs(available);
3323 nct6775_write_value(data,
3324 data->REG_TEMP_SOURCE[index],
3326 available &= ~(1 << index);
3332 s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
3333 for (i = 0; i < NUM_REG_TEMP; i++) {
3334 if (reg_temp[i] == 0)
3337 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3338 if (!src || (mask & (1 << src)))
3341 if (src >= data->temp_label_num ||
3342 !strlen(data->temp_label[src])) {
3344 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3345 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
3351 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3352 if (src <= data->temp_fixed_num) {
3353 data->have_temp |= 1 << (src - 1);
3354 data->have_temp_fixed |= 1 << (src - 1);
3355 data->reg_temp[0][src - 1] = reg_temp[i];
3356 data->reg_temp[1][src - 1] = reg_temp_over[i];
3357 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
3358 data->reg_temp_config[src - 1] = reg_temp_config[i];
3359 data->temp_src[src - 1] = src;
3366 /* Use dynamic index for other sources */
3367 data->have_temp |= 1 << s;
3368 data->reg_temp[0][s] = reg_temp[i];
3369 data->reg_temp[1][s] = reg_temp_over[i];
3370 data->reg_temp[2][s] = reg_temp_hyst[i];
3371 data->reg_temp_config[s] = reg_temp_config[i];
3373 data->temp_src[s] = src;
3379 * We may have alternate registers for some sensors.
3380 * Go through the list and enable if possible.
3381 * The temperature is already monitored if the respective bit in <mask>
3384 if (data->REG_TEMP_ALTERNATE) {
3385 for (i = 0; i < data->temp_label_num - 1; i++) {
3386 if (!data->REG_TEMP_ALTERNATE[i])
3388 if (mask & (1 << (i + 1)))
3390 if (i < data->temp_fixed_num) {
3391 if (data->have_temp & (1 << i))
3393 data->have_temp |= 1 << i;
3394 data->reg_temp[0][i]
3395 = data->REG_TEMP_ALTERNATE[i];
3396 data->temp_src[i] = i + 1;
3400 if (s >= NUM_TEMP) /* Abort if no more space */
3403 data->have_temp |= 1 << s;
3404 data->reg_temp[0][s] = data->REG_TEMP_ALTERNATE[i];
3405 data->temp_src[s] = i + 1;
3409 #endif /* TESTING */
3411 switch (data->kind) {
3416 * On NCT6776, AUXTIN and VIN3 pins are shared.
3417 * Only way to detect it is to check if AUXTIN is used
3418 * as a temperature source, and if that source is
3421 * If that is the case, disable in6, which reports VIN3.
3422 * Otherwise disable temp3.
3424 if (data->have_temp & (1 << 2)) {
3425 u8 reg = nct6775_read_value(data,
3426 data->reg_temp_config[2]);
3428 data->have_temp &= ~(1 << 2);
3430 data->have_in &= ~(1 << 6);
3440 * Assume voltage is disabled if the respective temperature is
3441 * used as temperature source.
3443 for (i = 0; i < ARRAY_SIZE(NCT6779_REG_TEMP); i++) {
3444 if (!(data->have_temp & (1 << i)))
3446 if (i == 2) /* AUXTIN0 */
3447 data->have_in &= ~(1 << 6); /* no VIN4 */
3448 if (i == 3) /* AUXTIN1 */
3449 data->have_in &= ~(1 << 10); /* no VIN5 */
3450 if (i == 4) /* AUXTIN2 */
3451 data->have_in &= ~(1 << 11); /* no VIN6 */
3452 if (i == 5) /* AUXTIN3 */
3453 data->have_in &= ~(1 << 14); /* no VIN7 */
3458 /* Initialize the chip */
3459 nct6775_init_device(data);
3461 data->vrm = vid_which_vrm();
3462 superio_enter(sio_data->sioreg);
3465 * We can get the VID input values directly at logical device D 0xe3.
3467 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3468 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3469 err = device_create_file(dev, &dev_attr_cpu0_vid);
3476 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3477 tmp = superio_inb(sio_data->sioreg,
3478 NCT6775_REG_CR_FAN_DEBOUNCE);
3479 switch (data->kind) {
3488 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3490 dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
3494 superio_exit(sio_data->sioreg);
3496 nct6775_check_fan_inputs(sio_data, data);
3498 /* Read fan clock dividers immediately */
3499 nct6775_update_fan_div_common(dev, data);
3501 /* Register sysfs hooks */
3502 for (i = 0; i < data->pwm_num; i++) {
3503 if (!(data->has_pwm & (1 << i)))
3506 err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
3510 if (data->REG_PWM[3]) {
3511 err = device_create_file(dev,
3512 &sda_max_output[i].dev_attr);
3516 if (data->REG_PWM[4]) {
3517 err = device_create_file(dev,
3518 &sda_step_output[i].dev_attr);
3522 if (data->REG_PWM[6]) {
3523 err = device_create_file(dev,
3524 &sda_weight_duty_base[i].dev_attr);
3529 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
3530 struct sensor_device_attribute_2 *attr =
3531 &sda_auto_pwm_arrays[i];
3533 if (!(data->has_pwm & (1 << attr->nr)))
3535 if (attr->index > data->auto_pwm_num)
3537 err = device_create_file(dev, &attr->dev_attr);
3542 for (i = 0; i < data->in_num; i++) {
3543 if (!(data->have_in & (1 << i)))
3545 err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]);
3550 for (i = 0; i < 5; i++) {
3551 if (data->has_fan & (1 << i)) {
3552 err = device_create_file(dev,
3553 &sda_fan_input[i].dev_attr);
3556 err = device_create_file(dev,
3557 &sda_fan_alarm[i].dev_attr);
3560 if (data->kind != nct6776 &&
3561 data->kind != nct6779) {
3562 err = device_create_file(dev,
3563 &sda_fan_div[i].dev_attr);
3567 if (data->has_fan_min & (1 << i)) {
3568 err = device_create_file(dev,
3569 &sda_fan_min[i].dev_attr);
3576 for (i = 0; i < NUM_TEMP; i++) {
3577 if (!(data->have_temp & (1 << i)))
3579 err = device_create_file(dev, &sda_temp_input[i].dev_attr);
3582 if (data->temp_label) {
3583 err = device_create_file(dev,
3584 &sda_temp_label[i].dev_attr);
3588 if (data->reg_temp[1][i]) {
3589 err = device_create_file(dev,
3590 &sda_temp_max[i].dev_attr);
3594 if (data->reg_temp[2][i]) {
3595 err = device_create_file(dev,
3596 &sda_temp_max_hyst[i].dev_attr);
3600 if (!(data->have_temp_fixed & (1 << i)))
3602 err = device_create_file(dev, &sda_temp_type[i].dev_attr);
3605 err = device_create_file(dev, &sda_temp_offset[i].dev_attr);
3608 if (i >= NUM_TEMP_ALARM ||
3609 data->ALARM_BITS[TEMP_ALARM_BASE + i] < 0)
3611 err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
3616 for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
3617 if (data->ALARM_BITS[INTRUSION_ALARM_BASE + i] < 0)
3619 err = device_create_file(dev, &sda_caseopen[i].dev_attr);
3624 err = device_create_file(dev, &dev_attr_name);
3628 data->hwmon_dev = hwmon_device_register(dev);
3629 if (IS_ERR(data->hwmon_dev)) {
3630 err = PTR_ERR(data->hwmon_dev);
3637 nct6775_device_remove_files(dev);
3639 release_region(res->start, IOREGION_LENGTH);
3644 static int __devexit nct6775_remove(struct platform_device *pdev)
3646 struct nct6775_data *data = platform_get_drvdata(pdev);
3648 hwmon_device_unregister(data->hwmon_dev);
3649 nct6775_device_remove_files(&pdev->dev);
3650 release_region(data->addr, IOREGION_LENGTH);
3655 static struct platform_driver nct6775_driver = {
3657 .owner = THIS_MODULE,
3660 .probe = nct6775_probe,
3661 .remove = __devexit_p(nct6775_remove),
3664 /* nct6775_find() looks for a '627 in the Super-I/O config space */
3665 static int __init nct6775_find(int sioaddr, unsigned short *addr,
3666 struct nct6775_sio_data *sio_data)
3668 static const char __initdata sio_name_NCT6775[] = "NCT6775F";
3669 static const char __initdata sio_name_NCT6776[] = "NCT6776F";
3670 static const char __initdata sio_name_NCT6779[] = "NCT6779D";
3673 const char *sio_name;
3675 superio_enter(sioaddr);
3680 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
3681 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
3682 switch (val & SIO_ID_MASK) {
3683 case SIO_NCT6775_ID:
3684 sio_data->kind = nct6775;
3685 sio_name = sio_name_NCT6775;
3687 case SIO_NCT6776_ID:
3688 sio_data->kind = nct6776;
3689 sio_name = sio_name_NCT6776;
3691 case SIO_NCT6779_ID:
3692 sio_data->kind = nct6779;
3693 sio_name = sio_name_NCT6779;
3697 pr_debug("unsupported chip ID: 0x%04x\n", val);
3698 superio_exit(sioaddr);
3702 /* We have a known chip, find the HWM I/O address */
3703 superio_select(sioaddr, NCT6775_LD_HWM);
3704 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
3705 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
3706 *addr = val & IOREGION_ALIGNMENT;
3708 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
3709 superio_exit(sioaddr);
3713 /* Activate logical device if needed */
3714 val = superio_inb(sioaddr, SIO_REG_ENABLE);
3715 if (!(val & 0x01)) {
3716 pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
3717 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
3720 superio_exit(sioaddr);
3721 pr_info("Found %s chip at %#x\n", sio_name, *addr);
3722 sio_data->sioreg = sioaddr;
3728 * when Super-I/O functions move to a separate file, the Super-I/O
3729 * bus will manage the lifetime of the device and this module will only keep
3730 * track of the nct6775 driver. But since we platform_device_alloc(), we
3731 * must keep track of the device
3733 static struct platform_device *pdev;
3735 static int __init sensors_nct6775_init(void)
3738 unsigned short address;
3739 struct resource res;
3740 struct nct6775_sio_data sio_data;
3743 * initialize sio_data->kind and sio_data->sioreg.
3745 * when Super-I/O functions move to a separate file, the Super-I/O
3746 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
3747 * nct6775 hardware monitor, and call probe()
3749 if (nct6775_find(0x2e, &address, &sio_data) &&
3750 nct6775_find(0x4e, &address, &sio_data))
3753 err = platform_driver_register(&nct6775_driver);
3757 pdev = platform_device_alloc(DRVNAME, address);
3760 pr_err("Device allocation failed\n");
3761 goto exit_unregister;
3764 err = platform_device_add_data(pdev, &sio_data,
3765 sizeof(struct nct6775_sio_data));
3767 pr_err("Platform data allocation failed\n");
3768 goto exit_device_put;
3771 memset(&res, 0, sizeof(res));
3773 res.start = address + IOREGION_OFFSET;
3774 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
3775 res.flags = IORESOURCE_IO;
3777 err = acpi_check_resource_conflict(&res);
3779 goto exit_device_put;
3781 err = platform_device_add_resources(pdev, &res, 1);
3783 pr_err("Device resource addition failed (%d)\n", err);
3784 goto exit_device_put;
3787 /* platform_device_add calls probe() */
3788 err = platform_device_add(pdev);
3790 pr_err("Device addition failed (%d)\n", err);
3791 goto exit_device_put;
3797 platform_device_put(pdev);
3799 platform_driver_unregister(&nct6775_driver);
3804 static void __exit sensors_nct6775_exit(void)
3806 platform_device_unregister(pdev);
3807 platform_driver_unregister(&nct6775_driver);
3810 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
3811 MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver");
3812 MODULE_LICENSE("GPL");
3814 module_init(sensors_nct6775_init);
3815 module_exit(sensors_nct6775_exit);