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)
124 * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
126 if (!request_muxed_region(ioreg, 2, DRVNAME))
136 superio_exit(int ioreg)
140 outb(0x02, ioreg + 1);
141 release_region(ioreg, 2);
148 #define IOREGION_ALIGNMENT (~7)
149 #define IOREGION_OFFSET 5
150 #define IOREGION_LENGTH 2
151 #define ADDR_REG_OFFSET 0
152 #define DATA_REG_OFFSET 1
154 #define NCT6775_REG_BANK 0x4E
155 #define NCT6775_REG_CONFIG 0x40
158 * Not currently used:
159 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
160 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
161 * REG_MAN_ID is at port 0x4f
162 * REG_CHIP_ID is at port 0x58
165 /* Voltage min/max registers for nr=7..14 are in bank 5 */
167 static const u16 NCT6775_REG_IN_MAX[] = {
168 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a,
169 0x55c, 0x55e, 0x560, 0x562 };
170 static const u16 NCT6775_REG_IN_MIN[] = {
171 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b,
172 0x55d, 0x55f, 0x561, 0x563 };
173 static const u16 NCT6775_REG_IN[] = {
174 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
177 static const u16 NCT6779_REG_IN[] = {
178 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
179 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e
182 #define NCT6775_REG_VBAT 0x5D
183 #define NCT6775_REG_DIODE 0x5E
185 #define NCT6775_REG_FANDIV1 0x506
186 #define NCT6775_REG_FANDIV2 0x507
188 #define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
190 static const u16 NCT6775_REG_ALARM[6] = { 0x459, 0x45A, 0x45B };
191 static const u16 NCT6779_REG_ALARM[6] = { 0x459, 0x45A, 0x45B, 0x568 };
193 /* 0..15 voltages, 16..23 fans, 24..31 temperatures */
195 static const s8 NCT6775_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, -1 }; /* intrusion0, intrusion1 */
204 static const s8 NCT6776_ALARM_BITS[]
205 = { 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
206 17, -1, -1, -1, -1, -1, -1, /* 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 static const s8 NCT6779_ALARM_BITS[]
214 = { 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
215 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
217 6, 7, 11, 10, 23, /* fan1..fan5 */
218 -1, -1, -1, /* unused */
219 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
220 12, 9 }; /* intrusion0, intrusion1 */
222 #define FAN_ALARM_BASE 16
223 #define TEMP_ALARM_BASE 24
224 #define INTRUSION_ALARM_BASE 30
226 static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
227 static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
229 /* DC or PWM output fan configuration */
230 static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
231 static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
233 static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 };
234 static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 };
236 /* Advanced Fan control, some values are common for all fans */
238 static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 };
239 static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
240 static const u16 NCT6779_REG_FAN_PULSES[]
241 = { 0x644, 0x645, 0x646, 0x647, 0x648 };
243 static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 };
244 static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 };
245 static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
246 0x103, 0x203, 0x303, 0x803, 0x903 };
247 static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
248 0x104, 0x204, 0x304, 0x804, 0x904 };
249 static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
250 0x105, 0x205, 0x305, 0x805, 0x905 };
251 static const u16 NCT6775_REG_FAN_START_OUTPUT[]
252 = { 0x106, 0x206, 0x306, 0x806, 0x906 };
253 static const u16 NCT6775_REG_FAN_STEP_ENABLE[] = {
254 0x120, 0x220, 0x320, 0x820, 0x920 };
255 static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
256 static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
258 static const u16 NCT6775_REG_FAN_STOP_TIME[]
259 = { 0x107, 0x207, 0x307, 0x807, 0x907 };
260 static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 };
261 static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 };
263 static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
264 static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
266 static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642};
268 static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8 };
270 static const u16 NCT6779_REG_TOLERANCE_H[]
271 = { 0x10c, 0x20c, 0x30c, 0x80c, 0x90c };
273 static const u16 NCT6775_REG_TEMP[]
274 = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
275 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
277 static const u16 NCT6775_REG_TEMP_CONFIG[]
278 = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
279 static const u16 NCT6775_REG_TEMP_HYST[]
280 = { 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
281 static const u16 NCT6775_REG_TEMP_OVER[]
282 = { 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
284 static const u16 NCT6779_REG_TEMP_HYST[]
285 = { 0x3a, 0x153, 0, 0, 0, 0 };
286 static const u16 NCT6779_REG_TEMP_OVER[]
287 = { 0x39, 0x155, 0, 0, 0, 0 };
289 static const u16 NCT6775_REG_TEMP_SOURCE[]
290 = { 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
292 static const u16 NCT6775_REG_TEMP_SEL[]
293 = { 0x100, 0x200, 0x300, 0x800, 0x900 };
295 static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[]
296 = { 0x139, 0x239, 0x339, 0x839, 0x939 };
297 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[]
298 = { 0x13a, 0x23a, 0x33a, 0x83a, 0x93a };
299 static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[]
300 = { 0x13b, 0x23b, 0x33b, 0x83b, 0x93b };
301 static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[]
302 = { 0x13c, 0x23c, 0x33c, 0x83c, 0x93c };
303 static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[]
304 = { 0x13d, 0x23d, 0x33d, 0x83d, 0x93d };
306 static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[]
307 = { 0x13e, 0x23e, 0x33e, 0x83e, 0x93e };
309 static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
311 static const u16 NCT6779_REG_TEMP_OFFSET[]
312 = { 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
314 static const u16 NCT6776_REG_TEMP_CONFIG[11]
315 = { 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
317 static const u16 NCT6779_REG_TEMP_CONFIG[11] = { 0x18, 0x152 };
319 static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
321 static const u16 NCT6775_REG_AUTO_TEMP[]
322 = { 0x121, 0x221, 0x321, 0x821, 0x921 };
323 static const u16 NCT6775_REG_AUTO_PWM[]
324 = { 0x127, 0x227, 0x327, 0x827, 0x927 };
326 #define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
327 #define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
329 static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
331 static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
332 0x135, 0x235, 0x335, 0x835, 0x935 };
333 static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
334 0x138, 0x238, 0x338, 0x838, 0x938 };
336 static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
337 0x136, 0x236, 0x336, 0x836, 0x936 };
338 static const u16 NCT6779_REG_CRITICAL_PWM[] = {
339 0x137, 0x237, 0x337, 0x837, 0x937 };
341 static const char *const nct6775_temp_label[] = {
355 "PCH_CHIP_CPU_MAX_TEMP",
365 static const char *const nct6776_temp_label[] = {
380 "PCH_CHIP_CPU_MAX_TEMP",
391 static const char *const nct6779_temp_label[] = {
410 "PCH_CHIP_CPU_MAX_TEMP",
421 static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
422 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
424 static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
425 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
427 static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
428 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
429 0, 0, 0, 0, 0, 0, 0, 0,
430 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
433 static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
434 = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06,
437 static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
438 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
440 static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
441 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
443 #define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
444 #define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
446 static inline int reg_to_pwm_enable(int pwm, int mode)
448 if (mode == 0 && pwm == 255)
453 static inline int pwm_enable_to_reg(int mode)
464 /* 1 is DC mode, output in ms */
465 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
467 return mode ? 400 * reg : 100 * reg;
470 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
472 return SENSORS_LIMIT((mode ? (msec + 200) / 400 :
473 (msec + 50) / 100), 1, 255);
476 static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
478 if (reg == 0 || reg == 255)
480 return 1350000U / (reg << divreg);
483 static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
485 if ((reg & 0xff1f) == 0xff1f)
488 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
493 return 1350000U / reg;
496 static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
498 if (reg == 0 || reg == 0xffff)
502 * Even though the registers are 16 bit wide, the fan divisor
505 return 1350000U / (reg << divreg);
508 static inline unsigned int
515 * Some of the voltage inputs have internal scaling, the tables below
516 * contain 8 (the ADC LSB in mV) * scaling factor * 100
518 static const u16 scale_in[15] = {
519 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
523 static inline long in_from_reg(u8 reg, u8 nr)
525 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
528 static inline u8 in_to_reg(u32 val, u8 nr)
530 return SENSORS_LIMIT(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0,
535 * Data structures and manipulation thereof
538 struct nct6775_data {
539 int addr; /* IO base of hw monitor block */
543 struct device *hwmon_dev;
546 u16 reg_temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
549 u8 temp_src[NUM_TEMP];
550 u16 reg_temp_config[NUM_TEMP];
551 const char * const *temp_label;
558 const s8 *ALARM_BITS;
561 const u16 *REG_IN_MINMAX[2];
563 const u16 *REG_TARGET;
565 const u16 *REG_FAN_MODE;
566 const u16 *REG_FAN_MIN;
567 const u16 *REG_FAN_TIME[3];
569 const u8 *REG_PWM_MODE;
570 const u8 *PWM_MODE_MASK;
572 const u16 *REG_PWM[7]; /* [0]=pwm, [1]=start_output, [2]=stop_output,
573 * [3]=max_output, [4]=step_output,
574 * [5]=weight_duty_step, [6]=weight_duty_base
576 const u16 *REG_PWM_READ;
578 const u16 *REG_TEMP_MON;
579 const u16 *REG_AUTO_TEMP;
580 const u16 *REG_AUTO_PWM;
582 const u16 *REG_CRITICAL_TEMP;
583 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
585 const u16 *REG_TEMP_SOURCE; /* temp register sources */
586 const u16 *REG_TEMP_SEL[3]; /* pwm temp:
587 * 0=base, 1=weight, 2=step enable
590 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=hyst, 2=step */
592 const u16 *REG_TEMP_OFFSET;
594 const u16 *REG_ALARM;
596 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
597 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
599 struct mutex update_lock;
600 char valid; /* !=0 if following fields are valid */
601 unsigned long last_updated; /* In jiffies */
603 /* Register values */
604 u8 bank; /* current register bank */
605 u8 in_num; /* number of in inputs we have */
606 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
611 u8 has_fan; /* some fan inputs can be disabled */
612 u8 has_fan_min; /* some fans don't have min register */
615 u8 temp_fixed_num; /* 3 or 6 */
616 u8 temp_type[NUM_TEMP_FIXED];
617 s8 temp_offset[NUM_TEMP_FIXED];
618 s16 temp[3][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst */
621 u8 pwm_num; /* number of pwm */
623 u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */
624 u8 pwm_enable[5]; /* 0->off
626 * 2->thermal cruise mode (also called SmartFan I)
627 * 3->fan speed cruise mode
629 * 5->enhanced variable thermal cruise (SmartFan IV)
631 u8 pwm[7][5]; /* [0]=pwm, [1]=start_output, [2]=stop_output,
632 * [3]=max_output, [4]=step_output,
633 * [5]=weight_duty_step, [6]=weight_duty_base
639 u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
641 /* Automatic fan speed control registers */
646 u8 pwm_temp_sel[2][5];
648 bool pwm_sel_enable[3][5];/* 0->stop_val, 1->weight, 2->step;
649 * false->off, true->on
651 u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol,
663 struct nct6775_sio_data {
668 static bool is_word_sized(struct nct6775_data *data, u16 reg)
670 switch (data->kind) {
672 return (((reg & 0xff00) == 0x100 ||
673 (reg & 0xff00) == 0x200) &&
674 ((reg & 0x00ff) == 0x50 ||
675 (reg & 0x00ff) == 0x53 ||
676 (reg & 0x00ff) == 0x55)) ||
677 (reg & 0xfff0) == 0x630 ||
678 reg == 0x640 || reg == 0x642 ||
680 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
681 reg == 0x73 || reg == 0x75 || reg == 0x77;
683 return (((reg & 0xff00) == 0x100 ||
684 (reg & 0xff00) == 0x200) &&
685 ((reg & 0x00ff) == 0x50 ||
686 (reg & 0x00ff) == 0x53 ||
687 (reg & 0x00ff) == 0x55)) ||
688 (reg & 0xfff0) == 0x630 ||
690 reg == 0x640 || reg == 0x642 ||
691 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
692 reg == 0x73 || reg == 0x75 || reg == 0x77;
694 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
695 ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x09) ||
697 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
698 reg == 0x640 || reg == 0x642 ||
699 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
706 * On older chips, only registers 0x50-0x5f are banked.
707 * On more recent chips, all registers are banked.
708 * Assume that is the case and set the bank number for each access.
709 * Cache the bank number so it only needs to be set if it changes.
711 static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
714 if (data->bank != bank) {
715 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
716 outb_p(bank, data->addr + DATA_REG_OFFSET);
721 static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
723 int res, word_sized = is_word_sized(data, reg);
725 mutex_lock(&data->lock);
727 nct6775_set_bank(data, reg);
728 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
729 res = inb_p(data->addr + DATA_REG_OFFSET);
731 outb_p((reg & 0xff) + 1,
732 data->addr + ADDR_REG_OFFSET);
733 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
736 mutex_unlock(&data->lock);
740 static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
742 int word_sized = is_word_sized(data, reg);
744 mutex_lock(&data->lock);
746 nct6775_set_bank(data, reg);
747 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
749 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
750 outb_p((reg & 0xff) + 1,
751 data->addr + ADDR_REG_OFFSET);
753 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
755 mutex_unlock(&data->lock);
759 /* We left-align 8-bit temperature values to make the code simpler */
760 static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
764 res = nct6775_read_value(data, reg);
765 if (!is_word_sized(data, reg))
771 static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
773 if (!is_word_sized(data, reg))
775 return nct6775_write_value(data, reg, value);
778 /* This function assumes that the caller holds data->update_lock */
779 static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
785 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
786 | (data->fan_div[0] & 0x7);
787 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
790 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
791 | ((data->fan_div[1] << 4) & 0x70);
792 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
794 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
795 | (data->fan_div[2] & 0x7);
796 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
799 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
800 | ((data->fan_div[3] << 4) & 0x70);
801 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
806 static void nct6775_write_fan_div_common(struct device *dev,
807 struct nct6775_data *data, int nr)
809 if (data->kind == nct6775)
810 nct6775_write_fan_div(data, nr);
813 static void nct6775_update_fan_div(struct nct6775_data *data)
817 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
818 data->fan_div[0] = i & 0x7;
819 data->fan_div[1] = (i & 0x70) >> 4;
820 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
821 data->fan_div[2] = i & 0x7;
822 if (data->has_fan & (1<<3))
823 data->fan_div[3] = (i & 0x70) >> 4;
826 static void nct6775_update_fan_div_common(struct device *dev,
827 struct nct6775_data *data)
829 if (data->kind == nct6775)
830 nct6775_update_fan_div(data);
833 static void nct6775_update_pwm(struct device *dev)
835 struct nct6775_data *data = dev_get_drvdata(dev);
840 for (i = 0; i < data->pwm_num; i++) {
841 if (!(data->has_pwm & (1 << i)))
844 duty_is_dc = data->REG_PWM_MODE[i] &&
845 (nct6775_read_value(data, data->REG_PWM_MODE[i])
846 & data->PWM_MODE_MASK[i]);
847 data->pwm_mode[i] = duty_is_dc;
849 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
850 for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
851 if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
853 = nct6775_read_value(data,
854 data->REG_PWM[j][i]);
858 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
859 (fanmodecfg >> 4) & 7);
861 data->tolerance[i][0] = fanmodecfg & 0x0f;
862 if (data->kind == nct6779) {
863 reg = nct6775_read_value(data,
864 NCT6779_REG_TOLERANCE_H[i]);
865 data->tolerance[i][0] |= (reg & 0x70) >> 1;
867 data->tolerance[i][1] =
868 nct6775_read_value(data,
869 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
871 data->pwm_sel_enable[0][i] =
872 nct6775_read_value(data, data->REG_TEMP_SEL[0][i])
874 data->pwm_sel_enable[1][i] =
875 nct6775_read_value(data, data->REG_TEMP_SEL[1][i])
877 data->pwm_sel_enable[2][i] =
878 nct6775_read_value(data, data->REG_TEMP_SEL[2][i])
882 for (j = 0; j < 2; j++) {
883 reg = nct6775_read_value(data,
884 data->REG_TEMP_SEL[j][i]);
885 data->pwm_temp_sel[j][i] = reg & 0x1f;
887 /* Weight temp data */
888 for (j = 0; j < 3; j++) {
889 data->weight_temp[j][i]
890 = nct6775_read_value(data,
891 data->REG_WEIGHT_TEMP[j][i]);
896 static void nct6775_update_pwm_limits(struct device *dev)
898 struct nct6775_data *data = dev_get_drvdata(dev);
902 for (i = 0; i < data->pwm_num; i++) {
903 if (!(data->has_pwm & (1 << i)))
906 for (j = 0; j < 3; j++) {
907 data->fan_time[j][i] =
908 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
911 data->target_temp[i] =
912 nct6775_read_value(data, data->REG_TARGET[i]) &
913 (data->pwm_mode[i] ? 0xff : 0x7f);
915 nct6775_read_value(data, data->REG_TEMP_MON[i]);
917 for (j = 0; j < data->auto_pwm_num; j++) {
918 data->auto_pwm[i][j] =
919 nct6775_read_value(data,
920 NCT6775_AUTO_PWM(data, i, j));
921 data->auto_temp[i][j] =
922 nct6775_read_value(data,
923 NCT6775_AUTO_TEMP(data, i, j));
926 /* critical auto_pwm temperature data */
927 data->auto_temp[i][data->auto_pwm_num] =
928 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
930 switch (data->kind) {
932 reg = nct6775_read_value(data,
933 NCT6775_REG_CRITICAL_ENAB[i]);
934 data->auto_pwm[i][data->auto_pwm_num] =
935 (reg & 0x02) ? 0xff : 0x00;
938 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
941 reg = nct6775_read_value(data,
942 NCT6779_REG_CRITICAL_PWM_ENABLE[i]);
944 data->auto_pwm[i][data->auto_pwm_num] =
945 nct6775_read_value(data,
946 NCT6779_REG_CRITICAL_PWM[i]);
948 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
954 static struct nct6775_data *nct6775_update_device(struct device *dev)
956 struct nct6775_data *data = dev_get_drvdata(dev);
959 mutex_lock(&data->update_lock);
961 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
963 /* Fan clock dividers */
964 nct6775_update_fan_div_common(dev, data);
966 /* Measured voltages and limits */
967 for (i = 0; i < data->in_num; i++) {
968 if (!(data->have_in & (1 << i)))
971 data->in[i][0] = nct6775_read_value(data,
973 data->in[i][1] = nct6775_read_value(data,
974 data->REG_IN_MINMAX[0][i]);
975 data->in[i][2] = nct6775_read_value(data,
976 data->REG_IN_MINMAX[1][i]);
979 /* Measured fan speeds and limits */
980 for (i = 0; i < 5; i++) {
983 if (!(data->has_fan & (1 << i)))
986 reg = nct6775_read_value(data, data->REG_FAN[i]);
987 data->rpm[i] = data->fan_from_reg(reg,
990 if (data->has_fan_min & (1 << i))
991 data->fan_min[i] = nct6775_read_value(data,
992 data->REG_FAN_MIN[i]);
995 * If we failed to measure the fan speed and clock
996 * divider can be increased, let's try that for next
999 if (data->has_fan_div && (reg >= 0xff || reg == 0x00)
1000 && data->fan_div[i] < 0x07) {
1002 "Increasing fan%d clock divider from %u to %u\n",
1003 i + 1, div_from_reg(data->fan_div[i]),
1004 div_from_reg(data->fan_div[i] + 1));
1006 nct6775_write_fan_div_common(dev, data, i);
1007 /* Preserve min limit if possible */
1008 if ((data->has_fan_min & (1 << i))
1009 && data->fan_min[i] >= 2
1010 && data->fan_min[i] != 255)
1011 nct6775_write_value(data,
1012 data->REG_FAN_MIN[i],
1013 (data->fan_min[i] /= 2));
1017 nct6775_update_pwm(dev);
1018 nct6775_update_pwm_limits(dev);
1020 /* Measured temperatures and limits */
1021 for (i = 0; i < NUM_TEMP; i++) {
1022 if (!(data->have_temp & (1 << i)))
1024 for (j = 0; j < 4; j++) {
1025 if (data->reg_temp[j][i])
1027 = nct6775_read_temp(data,
1028 data->reg_temp[j][i]);
1030 if (!(data->have_temp_fixed & (1 << i)))
1032 data->temp_offset[i]
1033 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
1037 for (i = 0; i < 6; i++) {
1039 if (!data->REG_ALARM[i])
1041 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
1042 data->alarms |= ((u64)alarm) << (i << 3);
1045 data->last_updated = jiffies;
1049 mutex_unlock(&data->update_lock);
1054 * Sysfs callback functions
1057 show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
1059 struct nct6775_data *data = nct6775_update_device(dev);
1060 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1062 int index = sattr->index;
1063 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
1067 store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1070 struct nct6775_data *data = dev_get_drvdata(dev);
1071 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1073 int index = sattr->index;
1075 int err = kstrtoul(buf, 10, &val);
1078 mutex_lock(&data->update_lock);
1079 data->in[nr][index] = in_to_reg(val, nr);
1080 nct6775_write_value(data, data->REG_IN_MINMAX[index-1][nr],
1081 data->in[nr][index]);
1082 mutex_unlock(&data->update_lock);
1087 show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1089 struct nct6775_data *data = nct6775_update_device(dev);
1090 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1091 int nr = data->ALARM_BITS[sattr->index];
1092 return sprintf(buf, "%u\n",
1093 (unsigned int)((data->alarms >> nr) & 0x01));
1096 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
1097 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
1098 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
1099 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0);
1100 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0);
1101 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0);
1102 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0);
1103 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0);
1104 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0);
1105 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0);
1106 static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0);
1107 static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0);
1108 static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0);
1109 static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0);
1110 static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0);
1112 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1113 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1114 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1115 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1116 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
1117 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
1118 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
1119 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
1120 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
1121 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
1122 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
1123 static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 11);
1124 static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 12);
1125 static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 13);
1126 static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 14);
1128 static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg,
1129 store_in_reg, 0, 1);
1130 static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg,
1131 store_in_reg, 1, 1);
1132 static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg,
1133 store_in_reg, 2, 1);
1134 static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg,
1135 store_in_reg, 3, 1);
1136 static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg,
1137 store_in_reg, 4, 1);
1138 static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg,
1139 store_in_reg, 5, 1);
1140 static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg,
1141 store_in_reg, 6, 1);
1142 static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg,
1143 store_in_reg, 7, 1);
1144 static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg,
1145 store_in_reg, 8, 1);
1146 static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg,
1147 store_in_reg, 9, 1);
1148 static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg,
1149 store_in_reg, 10, 1);
1150 static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg,
1151 store_in_reg, 11, 1);
1152 static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg,
1153 store_in_reg, 12, 1);
1154 static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg,
1155 store_in_reg, 13, 1);
1156 static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg,
1157 store_in_reg, 14, 1);
1159 static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg,
1160 store_in_reg, 0, 2);
1161 static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg,
1162 store_in_reg, 1, 2);
1163 static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg,
1164 store_in_reg, 2, 2);
1165 static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg,
1166 store_in_reg, 3, 2);
1167 static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg,
1168 store_in_reg, 4, 2);
1169 static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg,
1170 store_in_reg, 5, 2);
1171 static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg,
1172 store_in_reg, 6, 2);
1173 static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg,
1174 store_in_reg, 7, 2);
1175 static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg,
1176 store_in_reg, 8, 2);
1177 static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg,
1178 store_in_reg, 9, 2);
1179 static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg,
1180 store_in_reg, 10, 2);
1181 static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg,
1182 store_in_reg, 11, 2);
1183 static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg,
1184 store_in_reg, 12, 2);
1185 static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg,
1186 store_in_reg, 13, 2);
1187 static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg,
1188 store_in_reg, 14, 2);
1190 static struct attribute *nct6775_attributes_in[15][5] = {
1192 &sensor_dev_attr_in0_input.dev_attr.attr,
1193 &sensor_dev_attr_in0_min.dev_attr.attr,
1194 &sensor_dev_attr_in0_max.dev_attr.attr,
1195 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1199 &sensor_dev_attr_in1_input.dev_attr.attr,
1200 &sensor_dev_attr_in1_min.dev_attr.attr,
1201 &sensor_dev_attr_in1_max.dev_attr.attr,
1202 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1206 &sensor_dev_attr_in2_input.dev_attr.attr,
1207 &sensor_dev_attr_in2_min.dev_attr.attr,
1208 &sensor_dev_attr_in2_max.dev_attr.attr,
1209 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1213 &sensor_dev_attr_in3_input.dev_attr.attr,
1214 &sensor_dev_attr_in3_min.dev_attr.attr,
1215 &sensor_dev_attr_in3_max.dev_attr.attr,
1216 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1220 &sensor_dev_attr_in4_input.dev_attr.attr,
1221 &sensor_dev_attr_in4_min.dev_attr.attr,
1222 &sensor_dev_attr_in4_max.dev_attr.attr,
1223 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1227 &sensor_dev_attr_in5_input.dev_attr.attr,
1228 &sensor_dev_attr_in5_min.dev_attr.attr,
1229 &sensor_dev_attr_in5_max.dev_attr.attr,
1230 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1234 &sensor_dev_attr_in6_input.dev_attr.attr,
1235 &sensor_dev_attr_in6_min.dev_attr.attr,
1236 &sensor_dev_attr_in6_max.dev_attr.attr,
1237 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1241 &sensor_dev_attr_in7_input.dev_attr.attr,
1242 &sensor_dev_attr_in7_min.dev_attr.attr,
1243 &sensor_dev_attr_in7_max.dev_attr.attr,
1244 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1248 &sensor_dev_attr_in8_input.dev_attr.attr,
1249 &sensor_dev_attr_in8_min.dev_attr.attr,
1250 &sensor_dev_attr_in8_max.dev_attr.attr,
1251 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1255 &sensor_dev_attr_in9_input.dev_attr.attr,
1256 &sensor_dev_attr_in9_min.dev_attr.attr,
1257 &sensor_dev_attr_in9_max.dev_attr.attr,
1258 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1262 &sensor_dev_attr_in10_input.dev_attr.attr,
1263 &sensor_dev_attr_in10_min.dev_attr.attr,
1264 &sensor_dev_attr_in10_max.dev_attr.attr,
1265 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1269 &sensor_dev_attr_in11_input.dev_attr.attr,
1270 &sensor_dev_attr_in11_min.dev_attr.attr,
1271 &sensor_dev_attr_in11_max.dev_attr.attr,
1272 &sensor_dev_attr_in11_alarm.dev_attr.attr,
1276 &sensor_dev_attr_in12_input.dev_attr.attr,
1277 &sensor_dev_attr_in12_min.dev_attr.attr,
1278 &sensor_dev_attr_in12_max.dev_attr.attr,
1279 &sensor_dev_attr_in12_alarm.dev_attr.attr,
1283 &sensor_dev_attr_in13_input.dev_attr.attr,
1284 &sensor_dev_attr_in13_min.dev_attr.attr,
1285 &sensor_dev_attr_in13_max.dev_attr.attr,
1286 &sensor_dev_attr_in13_alarm.dev_attr.attr,
1290 &sensor_dev_attr_in14_input.dev_attr.attr,
1291 &sensor_dev_attr_in14_min.dev_attr.attr,
1292 &sensor_dev_attr_in14_max.dev_attr.attr,
1293 &sensor_dev_attr_in14_alarm.dev_attr.attr,
1298 static const struct attribute_group nct6775_group_in[15] = {
1299 { .attrs = nct6775_attributes_in[0] },
1300 { .attrs = nct6775_attributes_in[1] },
1301 { .attrs = nct6775_attributes_in[2] },
1302 { .attrs = nct6775_attributes_in[3] },
1303 { .attrs = nct6775_attributes_in[4] },
1304 { .attrs = nct6775_attributes_in[5] },
1305 { .attrs = nct6775_attributes_in[6] },
1306 { .attrs = nct6775_attributes_in[7] },
1307 { .attrs = nct6775_attributes_in[8] },
1308 { .attrs = nct6775_attributes_in[9] },
1309 { .attrs = nct6775_attributes_in[10] },
1310 { .attrs = nct6775_attributes_in[11] },
1311 { .attrs = nct6775_attributes_in[12] },
1312 { .attrs = nct6775_attributes_in[13] },
1313 { .attrs = nct6775_attributes_in[14] },
1317 show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1319 struct nct6775_data *data = nct6775_update_device(dev);
1320 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1321 int nr = sattr->index;
1322 return sprintf(buf, "%d\n", data->rpm[nr]);
1326 show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1328 struct nct6775_data *data = nct6775_update_device(dev);
1329 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1330 int nr = sattr->index;
1331 return sprintf(buf, "%d\n",
1332 data->fan_from_reg_min(data->fan_min[nr],
1333 data->fan_div[nr]));
1337 show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1339 struct nct6775_data *data = nct6775_update_device(dev);
1340 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1341 int nr = sattr->index;
1342 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1346 store_fan_min(struct device *dev, struct device_attribute *attr,
1347 const char *buf, size_t count)
1349 struct nct6775_data *data = dev_get_drvdata(dev);
1350 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1351 int nr = sattr->index;
1357 err = kstrtoul(buf, 10, &val);
1361 mutex_lock(&data->update_lock);
1362 if (!data->has_fan_div) {
1363 /* NCT6776F or NCT6779D; we know this is a 13 bit register */
1369 val = 1350000U / val;
1370 val = (val & 0x1f) | ((val << 3) & 0xff00);
1372 data->fan_min[nr] = val;
1373 goto write_min; /* Leave fan divider alone */
1376 /* No min limit, alarm disabled */
1377 data->fan_min[nr] = 255;
1378 new_div = data->fan_div[nr]; /* No change */
1379 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1382 reg = 1350000U / val;
1383 if (reg >= 128 * 255) {
1385 * Speed below this value cannot possibly be represented,
1386 * even with the highest divider (128)
1388 data->fan_min[nr] = 254;
1389 new_div = 7; /* 128 == (1 << 7) */
1391 "fan%u low limit %lu below minimum %u, set to minimum\n",
1392 nr + 1, val, data->fan_from_reg_min(254, 7));
1395 * Speed above this value cannot possibly be represented,
1396 * even with the lowest divider (1)
1398 data->fan_min[nr] = 1;
1399 new_div = 0; /* 1 == (1 << 0) */
1401 "fan%u low limit %lu above maximum %u, set to maximum\n",
1402 nr + 1, val, data->fan_from_reg_min(1, 0));
1405 * Automatically pick the best divider, i.e. the one such
1406 * that the min limit will correspond to a register value
1407 * in the 96..192 range
1410 while (reg > 192 && new_div < 7) {
1414 data->fan_min[nr] = reg;
1419 * Write both the fan clock divider (if it changed) and the new
1420 * fan min (unconditionally)
1422 if (new_div != data->fan_div[nr]) {
1423 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1424 nr + 1, div_from_reg(data->fan_div[nr]),
1425 div_from_reg(new_div));
1426 data->fan_div[nr] = new_div;
1427 nct6775_write_fan_div_common(dev, data, nr);
1428 /* Give the chip time to sample a new speed value */
1429 data->last_updated = jiffies;
1433 nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
1434 mutex_unlock(&data->update_lock);
1439 static struct sensor_device_attribute sda_fan_input[] = {
1440 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
1441 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
1442 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
1443 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
1444 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
1447 static struct sensor_device_attribute sda_fan_alarm[] = {
1448 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE),
1449 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 1),
1450 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 2),
1451 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 3),
1452 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 4),
1455 static struct sensor_device_attribute sda_fan_min[] = {
1456 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
1458 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
1460 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
1462 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
1464 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
1468 static struct sensor_device_attribute sda_fan_div[] = {
1469 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
1470 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
1471 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
1472 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
1473 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
1477 show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
1479 struct nct6775_data *data = nct6775_update_device(dev);
1480 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1481 int nr = sattr->index;
1482 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
1486 show_temp(struct device *dev, struct device_attribute *attr, char *buf)
1488 struct nct6775_data *data = nct6775_update_device(dev);
1489 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1491 int index = sattr->index;
1493 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
1497 store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
1500 struct nct6775_data *data = dev_get_drvdata(dev);
1501 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1503 int index = sattr->index;
1507 err = kstrtol(buf, 10, &val);
1511 mutex_lock(&data->update_lock);
1512 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
1513 nct6775_write_temp(data, data->reg_temp[index][nr],
1514 data->temp[index][nr]);
1515 mutex_unlock(&data->update_lock);
1520 show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
1522 struct nct6775_data *data = nct6775_update_device(dev);
1523 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1525 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
1529 store_temp_offset(struct device *dev, struct device_attribute *attr,
1530 const char *buf, size_t count)
1532 struct nct6775_data *data = dev_get_drvdata(dev);
1533 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1534 int nr = sattr->index;
1538 err = kstrtol(buf, 10, &val);
1542 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
1544 mutex_lock(&data->update_lock);
1545 data->temp_offset[nr] = val;
1546 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
1547 mutex_unlock(&data->update_lock);
1553 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
1555 struct nct6775_data *data = nct6775_update_device(dev);
1556 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1557 int nr = sattr->index;
1558 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
1562 store_temp_type(struct device *dev, struct device_attribute *attr,
1563 const char *buf, size_t count)
1565 struct nct6775_data *data = nct6775_update_device(dev);
1566 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1567 int nr = sattr->index;
1570 u8 vbat, diode, bit;
1572 err = kstrtoul(buf, 10, &val);
1576 if (val != 1 && val != 3 && val != 4)
1579 mutex_lock(&data->update_lock);
1581 data->temp_type[nr] = val;
1582 vbat = nct6775_read_value(data, data->REG_VBAT) & ~(0x02 << nr);
1583 diode = nct6775_read_value(data, data->REG_DIODE) & ~(0x02 << nr);
1586 case 1: /* CPU diode (diode, current mode) */
1590 case 3: /* diode, voltage mode */
1593 case 4: /* thermistor */
1596 nct6775_write_value(data, data->REG_VBAT, vbat);
1597 nct6775_write_value(data, data->REG_DIODE, diode);
1599 mutex_unlock(&data->update_lock);
1603 static struct sensor_device_attribute_2 sda_temp_input[] = {
1604 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
1605 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
1606 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0),
1607 SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0),
1608 SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0),
1609 SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0),
1610 SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0),
1611 SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0),
1612 SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0),
1613 SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0),
1616 static struct sensor_device_attribute sda_temp_label[] = {
1617 SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0),
1618 SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1),
1619 SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2),
1620 SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3),
1621 SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4),
1622 SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5),
1623 SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6),
1624 SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7),
1625 SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8),
1626 SENSOR_ATTR(temp10_label, S_IRUGO, show_temp_label, NULL, 9),
1629 static struct sensor_device_attribute_2 sda_temp_max[] = {
1630 SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1632 SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1634 SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1636 SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1638 SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1640 SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1642 SENSOR_ATTR_2(temp7_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1644 SENSOR_ATTR_2(temp8_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1646 SENSOR_ATTR_2(temp9_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1648 SENSOR_ATTR_2(temp10_max, S_IRUGO | S_IWUSR, show_temp, store_temp,
1652 static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1653 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1655 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1657 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1659 SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1661 SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1663 SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1665 SENSOR_ATTR_2(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1667 SENSOR_ATTR_2(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1669 SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1671 SENSOR_ATTR_2(temp10_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp,
1675 static struct sensor_device_attribute_2 sda_temp_crit[] = {
1676 SENSOR_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1678 SENSOR_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1680 SENSOR_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1682 SENSOR_ATTR_2(temp4_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1684 SENSOR_ATTR_2(temp5_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1686 SENSOR_ATTR_2(temp6_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1688 SENSOR_ATTR_2(temp7_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1690 SENSOR_ATTR_2(temp8_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1692 SENSOR_ATTR_2(temp9_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1694 SENSOR_ATTR_2(temp10_crit, S_IRUGO | S_IWUSR, show_temp, store_temp,
1698 static struct sensor_device_attribute sda_temp_offset[] = {
1699 SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1700 store_temp_offset, 0),
1701 SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1702 store_temp_offset, 1),
1703 SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1704 store_temp_offset, 2),
1705 SENSOR_ATTR(temp4_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1706 store_temp_offset, 3),
1707 SENSOR_ATTR(temp5_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1708 store_temp_offset, 4),
1709 SENSOR_ATTR(temp6_offset, S_IRUGO | S_IWUSR, show_temp_offset,
1710 store_temp_offset, 5),
1713 static struct sensor_device_attribute sda_temp_type[] = {
1714 SENSOR_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type,
1715 store_temp_type, 0),
1716 SENSOR_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type,
1717 store_temp_type, 1),
1718 SENSOR_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type,
1719 store_temp_type, 2),
1720 SENSOR_ATTR(temp4_type, S_IRUGO | S_IWUSR, show_temp_type,
1721 store_temp_type, 3),
1722 SENSOR_ATTR(temp5_type, S_IRUGO | S_IWUSR, show_temp_type,
1723 store_temp_type, 4),
1724 SENSOR_ATTR(temp6_type, S_IRUGO | S_IWUSR, show_temp_type,
1725 store_temp_type, 5),
1728 static struct sensor_device_attribute sda_temp_alarm[] = {
1729 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
1731 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
1732 TEMP_ALARM_BASE + 1),
1733 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
1734 TEMP_ALARM_BASE + 2),
1735 SENSOR_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL,
1736 TEMP_ALARM_BASE + 3),
1737 SENSOR_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL,
1738 TEMP_ALARM_BASE + 4),
1739 SENSOR_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL,
1740 TEMP_ALARM_BASE + 5),
1743 #define NUM_TEMP_ALARM ARRAY_SIZE(sda_temp_alarm)
1746 show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
1748 struct nct6775_data *data = nct6775_update_device(dev);
1749 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1751 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
1755 store_pwm_mode(struct device *dev, struct device_attribute *attr,
1756 const char *buf, size_t count)
1758 struct nct6775_data *data = dev_get_drvdata(dev);
1759 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1760 int nr = sattr->index;
1765 err = kstrtoul(buf, 10, &val);
1772 /* Setting DC mode is not supported for all chips/channels */
1773 if (data->REG_PWM_MODE[nr] == 0) {
1779 mutex_lock(&data->update_lock);
1780 data->pwm_mode[nr] = val;
1781 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
1782 reg &= ~data->PWM_MODE_MASK[nr];
1784 reg |= data->PWM_MODE_MASK[nr];
1785 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
1786 mutex_unlock(&data->update_lock);
1791 show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
1793 struct nct6775_data *data = nct6775_update_device(dev);
1794 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1796 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
1800 show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
1802 struct nct6775_data *data = nct6775_update_device(dev);
1803 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1805 int index = sattr->index;
1809 * For automatic fan control modes, show current pwm readings.
1810 * Otherwise, show the configured value.
1812 if (index == 0 && data->pwm_enable[nr] > 1)
1813 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
1815 pwm = data->pwm[index][nr];
1817 return sprintf(buf, "%d\n", pwm);
1821 store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
1824 struct nct6775_data *data = dev_get_drvdata(dev);
1825 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1827 int index = sattr->index;
1829 int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
1831 = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
1834 err = kstrtoul(buf, 10, &val);
1837 val = SENSORS_LIMIT(val, minval[index], maxval[index]);
1839 mutex_lock(&data->update_lock);
1840 data->pwm[index][nr] = val;
1841 nct6775_write_value(data, data->REG_PWM[index][nr], val);
1842 mutex_unlock(&data->update_lock);
1846 /* Returns 0 if OK, -EINVAL otherwise */
1847 static int check_trip_points(struct nct6775_data *data, int nr)
1851 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1852 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
1855 for (i = 0; i < data->auto_pwm_num - 1; i++) {
1856 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
1859 /* validate critical temperature and pwm if enabled (pwm > 0) */
1860 if (data->auto_pwm[nr][data->auto_pwm_num]) {
1861 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
1862 data->auto_temp[nr][data->auto_pwm_num] ||
1863 data->auto_pwm[nr][data->auto_pwm_num - 1] >
1864 data->auto_pwm[nr][data->auto_pwm_num])
1871 store_pwm_enable(struct device *dev, struct device_attribute *attr,
1872 const char *buf, size_t count)
1874 struct nct6775_data *data = dev_get_drvdata(dev);
1875 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1876 int nr = sattr->index;
1881 err = kstrtoul(buf, 10, &val);
1888 if (val == 4 && data->kind != nct6775)
1891 if (val == 5 && check_trip_points(data, nr)) {
1892 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
1893 dev_err(dev, "Adjust trip points and try again\n");
1897 mutex_lock(&data->update_lock);
1898 data->pwm_enable[nr] = val;
1901 * turn off pwm control: select manual mode, set pwm to maximum
1903 data->pwm[0][nr] = 255;
1904 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
1906 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
1908 reg |= pwm_enable_to_reg(val) << 4;
1909 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
1910 mutex_unlock(&data->update_lock);
1915 show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
1917 struct nct6775_data *data = nct6775_update_device(dev);
1918 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1919 int i, src, sel = 0;
1921 src = data->pwm_temp_sel[sattr->index][sattr->nr];
1923 for (i = 0; i < NUM_TEMP; i++) {
1924 if (!(data->have_temp & (1 << i)))
1926 if (src == data->temp_src[i]) {
1932 return sprintf(buf, "%d\n", sel);
1936 store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
1937 const char *buf, size_t count)
1939 struct nct6775_data *data = nct6775_update_device(dev);
1940 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1942 int index = sattr->index;
1946 err = kstrtoul(buf, 10, &val);
1949 if (val == 0 || val > NUM_TEMP)
1951 if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1])
1954 mutex_lock(&data->update_lock);
1955 src = data->temp_src[val - 1];
1956 data->pwm_temp_sel[index][nr] = src;
1957 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
1960 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
1961 mutex_unlock(&data->update_lock);
1967 show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
1969 struct nct6775_data *data = nct6775_update_device(dev);
1970 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1972 return sprintf(buf, "%d\n",
1973 data->target_temp[sattr->index] * 1000);
1977 store_target_temp(struct device *dev, struct device_attribute *attr,
1978 const char *buf, size_t count)
1980 struct nct6775_data *data = dev_get_drvdata(dev);
1981 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1982 int nr = sattr->index;
1986 err = kstrtol(buf, 10, &val);
1990 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
1992 mutex_lock(&data->update_lock);
1993 data->target_temp[nr] = val;
1994 nct6775_write_value(data, data->REG_TARGET[nr], val);
1995 mutex_unlock(&data->update_lock);
2000 show_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
2003 struct nct6775_data *data = nct6775_update_device(dev);
2004 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2006 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
2007 int tolerance = data->tolerance[nr][point];
2008 int temp = data->auto_temp[nr][sattr->index];
2010 return sprintf(buf, "%d\n", (temp - tolerance) * 1000);
2014 store_auto_temp_hyst(struct device *dev, struct device_attribute *attr,
2015 const char *buf, size_t count)
2017 struct nct6775_data *data = dev_get_drvdata(dev);
2018 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2020 int point = sattr->index >= data->auto_pwm_num ? 1 : 0;
2024 int maxlimit[2][3] = { { 15, 7, 63 }, { 15, 7, 7 } };
2025 int mask[] = { 0x0f, 0x07, 0x07 };
2028 err = kstrtol(buf, 10, &val);
2032 temp = data->auto_temp[nr][sattr->index];
2033 val = temp - DIV_ROUND_CLOSEST(val, 1000);
2035 /* Limit tolerance as needed */
2036 val = SENSORS_LIMIT(val, 0, maxlimit[point][data->kind]);
2038 mutex_lock(&data->update_lock);
2040 nct6775_write_value(data,
2041 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
2044 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2045 reg = (reg & ~mask[nr]) | (val & mask[nr]);
2046 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2047 if (data->kind == nct6779) {
2048 reg = nct6775_read_value(data,
2049 NCT6779_REG_TOLERANCE_H[nr]);
2050 reg = (reg & 0x70) | ((val & 0x38) << 1);
2051 nct6775_write_value(data,
2052 NCT6779_REG_TOLERANCE_H[nr], reg);
2056 data->tolerance[nr][point] = val;
2057 mutex_unlock(&data->update_lock);
2061 static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
2062 static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0);
2063 static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0);
2064 static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0);
2065 static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0);
2067 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2069 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2071 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2073 static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2075 static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
2078 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2079 store_pwm_enable, 0);
2080 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2081 store_pwm_enable, 1);
2082 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2083 store_pwm_enable, 2);
2084 static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2085 store_pwm_enable, 3);
2086 static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
2087 store_pwm_enable, 4);
2089 static SENSOR_DEVICE_ATTR_2(pwm1_temp_sel, S_IWUSR | S_IRUGO,
2090 show_pwm_temp_sel, store_pwm_temp_sel, 0, 0);
2091 static SENSOR_DEVICE_ATTR_2(pwm2_temp_sel, S_IWUSR | S_IRUGO,
2092 show_pwm_temp_sel, store_pwm_temp_sel, 1, 0);
2093 static SENSOR_DEVICE_ATTR_2(pwm3_temp_sel, S_IWUSR | S_IRUGO,
2094 show_pwm_temp_sel, store_pwm_temp_sel, 2, 0);
2095 static SENSOR_DEVICE_ATTR_2(pwm4_temp_sel, S_IWUSR | S_IRUGO,
2096 show_pwm_temp_sel, store_pwm_temp_sel, 3, 0);
2097 static SENSOR_DEVICE_ATTR_2(pwm5_temp_sel, S_IWUSR | S_IRUGO,
2098 show_pwm_temp_sel, store_pwm_temp_sel, 4, 0);
2100 static SENSOR_DEVICE_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
2101 store_target_temp, 0);
2102 static SENSOR_DEVICE_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
2103 store_target_temp, 1);
2104 static SENSOR_DEVICE_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
2105 store_target_temp, 2);
2106 static SENSOR_DEVICE_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
2107 store_target_temp, 3);
2108 static SENSOR_DEVICE_ATTR(pwm5_target, S_IWUSR | S_IRUGO, show_target_temp,
2109 store_target_temp, 4);
2111 /* Smart Fan registers */
2114 show_pwm_sel_enable(struct device *dev, struct device_attribute *attr,
2117 struct nct6775_data *data = nct6775_update_device(dev);
2118 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2120 return sprintf(buf, "%d\n",
2121 data->pwm_sel_enable[sattr->index][sattr->nr]);
2125 store_pwm_sel_enable(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 static const u8 bit[] = { 0x80, 0x80, 0x01 };
2138 err = kstrtoul(buf, 10, &val);
2145 mutex_lock(&data->update_lock);
2146 data->pwm_sel_enable[index][nr] = val;
2147 reg = nct6775_read_value(data, data->REG_TEMP_SEL[index][nr]);
2151 nct6775_write_value(data, data->REG_TEMP_SEL[index][nr], reg);
2152 mutex_unlock(&data->update_lock);
2157 show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
2159 struct nct6775_data *data = nct6775_update_device(dev);
2160 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2162 int index = sattr->index;
2164 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
2168 store_weight_temp(struct device *dev, struct device_attribute *attr,
2169 const char *buf, size_t count)
2171 struct nct6775_data *data = dev_get_drvdata(dev);
2172 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2174 int index = sattr->index;
2178 err = kstrtoul(buf, 10, &val);
2182 val = SENSORS_LIMIT(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
2184 mutex_lock(&data->update_lock);
2185 data->weight_temp[index][nr] = val;
2186 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
2187 mutex_unlock(&data->update_lock);
2191 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output_enable, S_IWUSR | S_IRUGO,
2192 show_pwm_sel_enable, store_pwm_sel_enable, 0, 0);
2193 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output_enable, S_IWUSR | S_IRUGO,
2194 show_pwm_sel_enable, store_pwm_sel_enable, 1, 0);
2195 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output_enable, S_IWUSR | S_IRUGO,
2196 show_pwm_sel_enable, store_pwm_sel_enable, 2, 0);
2197 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output_enable, S_IWUSR | S_IRUGO,
2198 show_pwm_sel_enable, store_pwm_sel_enable, 3, 0);
2199 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output_enable, S_IWUSR | S_IRUGO,
2200 show_pwm_sel_enable, store_pwm_sel_enable, 4, 0);
2202 static SENSOR_DEVICE_ATTR_2(pwm1_weight_enable, S_IWUSR | S_IRUGO,
2203 show_pwm_sel_enable, store_pwm_sel_enable, 0, 1);
2204 static SENSOR_DEVICE_ATTR_2(pwm2_weight_enable, S_IWUSR | S_IRUGO,
2205 show_pwm_sel_enable, store_pwm_sel_enable, 1, 1);
2206 static SENSOR_DEVICE_ATTR_2(pwm3_weight_enable, S_IWUSR | S_IRUGO,
2207 show_pwm_sel_enable, store_pwm_sel_enable, 2, 1);
2208 static SENSOR_DEVICE_ATTR_2(pwm4_weight_enable, S_IWUSR | S_IRUGO,
2209 show_pwm_sel_enable, store_pwm_sel_enable, 3, 1);
2210 static SENSOR_DEVICE_ATTR_2(pwm5_weight_enable, S_IWUSR | S_IRUGO,
2211 show_pwm_sel_enable, store_pwm_sel_enable, 4, 1);
2213 static SENSOR_DEVICE_ATTR_2(pwm1_step_enable, S_IWUSR | S_IRUGO,
2214 show_pwm_sel_enable, store_pwm_sel_enable, 0, 2);
2215 static SENSOR_DEVICE_ATTR_2(pwm2_step_enable, S_IWUSR | S_IRUGO,
2216 show_pwm_sel_enable, store_pwm_sel_enable, 1, 2);
2217 static SENSOR_DEVICE_ATTR_2(pwm3_step_enable, S_IWUSR | S_IRUGO,
2218 show_pwm_sel_enable, store_pwm_sel_enable, 2, 2);
2219 static SENSOR_DEVICE_ATTR_2(pwm4_step_enable, S_IWUSR | S_IRUGO,
2220 show_pwm_sel_enable, store_pwm_sel_enable, 3, 2);
2221 static SENSOR_DEVICE_ATTR_2(pwm5_step_enable, S_IWUSR | S_IRUGO,
2222 show_pwm_sel_enable, store_pwm_sel_enable, 4, 2);
2224 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO,
2225 show_pwm_temp_sel, store_pwm_temp_sel, 0, 1);
2226 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO,
2227 show_pwm_temp_sel, store_pwm_temp_sel, 1, 1);
2228 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO,
2229 show_pwm_temp_sel, store_pwm_temp_sel, 2, 1);
2230 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO,
2231 show_pwm_temp_sel, store_pwm_temp_sel, 3, 1);
2232 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO,
2233 show_pwm_temp_sel, store_pwm_temp_sel, 4, 1);
2235 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO,
2236 show_weight_temp, store_weight_temp, 0, 0);
2237 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO,
2238 show_weight_temp, store_weight_temp, 1, 0);
2239 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO,
2240 show_weight_temp, store_weight_temp, 2, 0);
2241 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO,
2242 show_weight_temp, store_weight_temp, 3, 0);
2243 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO,
2244 show_weight_temp, store_weight_temp, 4, 0);
2246 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2247 show_weight_temp, store_weight_temp, 0, 1);
2248 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2249 show_weight_temp, store_weight_temp, 1, 1);
2250 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2251 show_weight_temp, store_weight_temp, 2, 1);
2252 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2253 show_weight_temp, store_weight_temp, 3, 1);
2254 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO,
2255 show_weight_temp, store_weight_temp, 4, 1);
2257 static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO,
2258 show_weight_temp, store_weight_temp, 0, 2);
2259 static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO,
2260 show_weight_temp, store_weight_temp, 1, 2);
2261 static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO,
2262 show_weight_temp, store_weight_temp, 2, 2);
2263 static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO,
2264 show_weight_temp, store_weight_temp, 3, 2);
2265 static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO,
2266 show_weight_temp, store_weight_temp, 4, 2);
2268 static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO,
2269 show_pwm, store_pwm, 0, 5);
2270 static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO,
2271 show_pwm, store_pwm, 1, 5);
2272 static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO,
2273 show_pwm, store_pwm, 2, 5);
2274 static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO,
2275 show_pwm, store_pwm, 3, 5);
2276 static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO,
2277 show_pwm, store_pwm, 4, 5);
2279 /* duty_base is not supported on all chips */
2280 static struct sensor_device_attribute_2 sda_weight_duty_base[] = {
2281 SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO,
2282 show_pwm, store_pwm, 0, 6),
2283 SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO,
2284 show_pwm, store_pwm, 1, 6),
2285 SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO,
2286 show_pwm, store_pwm, 2, 6),
2287 SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO,
2288 show_pwm, store_pwm, 3, 6),
2289 SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO,
2290 show_pwm, store_pwm, 4, 6),
2294 show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2296 struct nct6775_data *data = nct6775_update_device(dev);
2297 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2299 int index = sattr->index;
2301 return sprintf(buf, "%d\n",
2302 step_time_from_reg(data->fan_time[index][nr],
2303 data->pwm_mode[nr]));
2307 store_fan_time(struct device *dev, struct device_attribute *attr,
2308 const char *buf, size_t count)
2310 struct nct6775_data *data = dev_get_drvdata(dev);
2311 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2313 int index = sattr->index;
2317 err = kstrtoul(buf, 10, &val);
2321 val = step_time_to_reg(val, data->pwm_mode[nr]);
2322 mutex_lock(&data->update_lock);
2323 data->fan_time[index][nr] = val;
2324 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2325 mutex_unlock(&data->update_lock);
2330 show_name(struct device *dev, struct device_attribute *attr, char *buf)
2332 struct nct6775_data *data = dev_get_drvdata(dev);
2334 return sprintf(buf, "%s\n", data->name);
2337 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
2339 static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2340 store_fan_time, 0, 0);
2341 static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2342 store_fan_time, 1, 0);
2343 static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2344 store_fan_time, 2, 0);
2345 static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2346 store_fan_time, 3, 0);
2347 static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time,
2348 store_fan_time, 4, 0);
2350 static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2351 store_fan_time, 0, 1);
2352 static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2353 store_fan_time, 1, 1);
2354 static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2355 store_fan_time, 2, 1);
2356 static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2357 store_fan_time, 3, 1);
2358 static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time,
2359 store_fan_time, 4, 1);
2361 static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO,
2362 show_fan_time, store_fan_time, 0, 2);
2363 static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO,
2364 show_fan_time, store_fan_time, 1, 2);
2365 static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO,
2366 show_fan_time, store_fan_time, 2, 2);
2367 static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO,
2368 show_fan_time, store_fan_time, 3, 2);
2369 static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO,
2370 show_fan_time, store_fan_time, 4, 2);
2372 static SENSOR_DEVICE_ATTR_2(pwm1_start_output, S_IWUSR | S_IRUGO, show_pwm,
2374 static SENSOR_DEVICE_ATTR_2(pwm2_start_output, S_IWUSR | S_IRUGO, show_pwm,
2376 static SENSOR_DEVICE_ATTR_2(pwm3_start_output, S_IWUSR | S_IRUGO, show_pwm,
2378 static SENSOR_DEVICE_ATTR_2(pwm4_start_output, S_IWUSR | S_IRUGO, show_pwm,
2380 static SENSOR_DEVICE_ATTR_2(pwm5_start_output, S_IWUSR | S_IRUGO, show_pwm,
2383 static SENSOR_DEVICE_ATTR_2(pwm1_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2385 static SENSOR_DEVICE_ATTR_2(pwm2_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2387 static SENSOR_DEVICE_ATTR_2(pwm3_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2389 static SENSOR_DEVICE_ATTR_2(pwm4_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2391 static SENSOR_DEVICE_ATTR_2(pwm5_stop_output, S_IWUSR | S_IRUGO, show_pwm,
2394 /* max_output is not supported on all chips */
2395 static struct sensor_device_attribute_2 sda_max_output[] = {
2396 SENSOR_ATTR_2(pwm1_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2398 SENSOR_ATTR_2(pwm2_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2400 SENSOR_ATTR_2(pwm3_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2402 SENSOR_ATTR_2(pwm4_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2404 SENSOR_ATTR_2(pwm5_max_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2408 /* step_output is not supported on all chips */
2409 static struct sensor_device_attribute_2 sda_step_output[] = {
2410 SENSOR_ATTR_2(pwm1_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2412 SENSOR_ATTR_2(pwm2_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2414 SENSOR_ATTR_2(pwm3_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2416 SENSOR_ATTR_2(pwm4_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2418 SENSOR_ATTR_2(pwm5_step_output, S_IWUSR | S_IRUGO, show_pwm, store_pwm,
2422 static struct attribute *nct6775_attributes_pwm[5][20] = {
2424 &sensor_dev_attr_pwm1.dev_attr.attr,
2425 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
2426 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2427 &sensor_dev_attr_pwm1_stop_output_enable.dev_attr.attr,
2428 &sensor_dev_attr_pwm1_weight_enable.dev_attr.attr,
2429 &sensor_dev_attr_pwm1_step_enable.dev_attr.attr,
2430 &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr,
2431 &sensor_dev_attr_pwm1_target.dev_attr.attr,
2432 &sensor_dev_attr_pwm1_stop_time.dev_attr.attr,
2433 &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr,
2434 &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr,
2435 &sensor_dev_attr_pwm1_start_output.dev_attr.attr,
2436 &sensor_dev_attr_pwm1_stop_output.dev_attr.attr,
2437 &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr,
2438 &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr,
2439 &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr,
2440 &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr,
2441 &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr,
2445 &sensor_dev_attr_pwm2.dev_attr.attr,
2446 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
2447 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2448 &sensor_dev_attr_pwm2_stop_output_enable.dev_attr.attr,
2449 &sensor_dev_attr_pwm2_weight_enable.dev_attr.attr,
2450 &sensor_dev_attr_pwm2_step_enable.dev_attr.attr,
2451 &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr,
2452 &sensor_dev_attr_pwm2_target.dev_attr.attr,
2453 &sensor_dev_attr_pwm2_stop_time.dev_attr.attr,
2454 &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr,
2455 &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr,
2456 &sensor_dev_attr_pwm2_start_output.dev_attr.attr,
2457 &sensor_dev_attr_pwm2_stop_output.dev_attr.attr,
2458 &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr,
2459 &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr,
2460 &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr,
2461 &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr,
2462 &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr,
2466 &sensor_dev_attr_pwm3.dev_attr.attr,
2467 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
2468 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
2469 &sensor_dev_attr_pwm3_stop_output_enable.dev_attr.attr,
2470 &sensor_dev_attr_pwm3_weight_enable.dev_attr.attr,
2471 &sensor_dev_attr_pwm3_step_enable.dev_attr.attr,
2472 &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr,
2473 &sensor_dev_attr_pwm3_target.dev_attr.attr,
2474 &sensor_dev_attr_pwm3_stop_time.dev_attr.attr,
2475 &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr,
2476 &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr,
2477 &sensor_dev_attr_pwm3_start_output.dev_attr.attr,
2478 &sensor_dev_attr_pwm3_stop_output.dev_attr.attr,
2479 &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr,
2480 &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr,
2481 &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr,
2482 &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr,
2483 &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr,
2487 &sensor_dev_attr_pwm4.dev_attr.attr,
2488 &sensor_dev_attr_pwm4_mode.dev_attr.attr,
2489 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
2490 &sensor_dev_attr_pwm4_stop_output_enable.dev_attr.attr,
2491 &sensor_dev_attr_pwm4_weight_enable.dev_attr.attr,
2492 &sensor_dev_attr_pwm4_step_enable.dev_attr.attr,
2493 &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr,
2494 &sensor_dev_attr_pwm4_target.dev_attr.attr,
2495 &sensor_dev_attr_pwm4_stop_time.dev_attr.attr,
2496 &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr,
2497 &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr,
2498 &sensor_dev_attr_pwm4_start_output.dev_attr.attr,
2499 &sensor_dev_attr_pwm4_stop_output.dev_attr.attr,
2500 &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr,
2501 &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr,
2502 &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr,
2503 &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr,
2504 &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr,
2508 &sensor_dev_attr_pwm5.dev_attr.attr,
2509 &sensor_dev_attr_pwm5_mode.dev_attr.attr,
2510 &sensor_dev_attr_pwm5_enable.dev_attr.attr,
2511 &sensor_dev_attr_pwm5_stop_output_enable.dev_attr.attr,
2512 &sensor_dev_attr_pwm5_weight_enable.dev_attr.attr,
2513 &sensor_dev_attr_pwm5_step_enable.dev_attr.attr,
2514 &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr,
2515 &sensor_dev_attr_pwm5_target.dev_attr.attr,
2516 &sensor_dev_attr_pwm5_stop_time.dev_attr.attr,
2517 &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr,
2518 &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr,
2519 &sensor_dev_attr_pwm5_start_output.dev_attr.attr,
2520 &sensor_dev_attr_pwm5_stop_output.dev_attr.attr,
2521 &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr,
2522 &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr,
2523 &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr,
2524 &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr,
2525 &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr,
2530 static const struct attribute_group nct6775_group_pwm[5] = {
2531 { .attrs = nct6775_attributes_pwm[0] },
2532 { .attrs = nct6775_attributes_pwm[1] },
2533 { .attrs = nct6775_attributes_pwm[2] },
2534 { .attrs = nct6775_attributes_pwm[3] },
2535 { .attrs = nct6775_attributes_pwm[4] },
2539 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2541 struct nct6775_data *data = nct6775_update_device(dev);
2542 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2544 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2548 store_auto_pwm(struct device *dev, struct device_attribute *attr,
2549 const char *buf, size_t count)
2551 struct nct6775_data *data = dev_get_drvdata(dev);
2552 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2554 int point = sattr->index;
2559 err = kstrtoul(buf, 10, &val);
2565 if (point == data->auto_pwm_num) {
2566 if (data->kind != nct6775 && !val)
2568 if (data->kind != nct6779 && val)
2572 mutex_lock(&data->update_lock);
2573 data->auto_pwm[nr][point] = val;
2574 if (point < data->auto_pwm_num) {
2575 nct6775_write_value(data,
2576 NCT6775_AUTO_PWM(data, nr, point),
2577 data->auto_pwm[nr][point]);
2579 switch (data->kind) {
2581 /* disable if needed (pwm == 0) */
2582 reg = nct6775_read_value(data,
2583 NCT6775_REG_CRITICAL_ENAB[nr]);
2588 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2592 break; /* always enabled, nothing to do */
2594 nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr],
2596 reg = nct6775_read_value(data,
2597 NCT6779_REG_CRITICAL_PWM_ENABLE[nr]);
2602 nct6775_write_value(data,
2603 NCT6779_REG_CRITICAL_PWM_ENABLE[nr],
2608 mutex_unlock(&data->update_lock);
2613 show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2615 struct nct6775_data *data = nct6775_update_device(dev);
2616 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2618 int point = sattr->index;
2621 * We don't know for sure if the temperature is signed or unsigned.
2622 * Assume it is unsigned.
2624 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2628 store_auto_temp(struct device *dev, struct device_attribute *attr,
2629 const char *buf, size_t count)
2631 struct nct6775_data *data = dev_get_drvdata(dev);
2632 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2634 int point = sattr->index;
2638 err = kstrtoul(buf, 10, &val);
2644 mutex_lock(&data->update_lock);
2645 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2646 if (point < data->auto_pwm_num) {
2647 nct6775_write_value(data,
2648 NCT6775_AUTO_TEMP(data, nr, point),
2649 data->auto_temp[nr][point]);
2651 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2652 data->auto_temp[nr][point]);
2654 mutex_unlock(&data->update_lock);
2659 * The number of auto-point trip points is chip dependent.
2660 * Need to check support while generating/removing attribute files.
2662 static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = {
2663 SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
2664 show_auto_pwm, store_auto_pwm, 0, 0),
2665 SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
2666 show_auto_temp, store_auto_temp, 0, 0),
2667 SENSOR_ATTR_2(pwm1_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2668 show_auto_temp_hyst, store_auto_temp_hyst, 0, 0),
2669 SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
2670 show_auto_pwm, store_auto_pwm, 0, 1),
2671 SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO,
2672 show_auto_temp, store_auto_temp, 0, 1),
2673 SENSOR_ATTR_2(pwm1_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2674 show_auto_temp_hyst, store_auto_temp_hyst, 0, 1),
2675 SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO,
2676 show_auto_pwm, store_auto_pwm, 0, 2),
2677 SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO,
2678 show_auto_temp, store_auto_temp, 0, 2),
2679 SENSOR_ATTR_2(pwm1_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2680 show_auto_temp_hyst, store_auto_temp_hyst, 0, 2),
2681 SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO,
2682 show_auto_pwm, store_auto_pwm, 0, 3),
2683 SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO,
2684 show_auto_temp, store_auto_temp, 0, 3),
2685 SENSOR_ATTR_2(pwm1_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2686 show_auto_temp_hyst, store_auto_temp_hyst, 0, 3),
2687 SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO,
2688 show_auto_pwm, store_auto_pwm, 0, 4),
2689 SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO,
2690 show_auto_temp, store_auto_temp, 0, 4),
2691 SENSOR_ATTR_2(pwm1_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2692 show_auto_temp_hyst, store_auto_temp_hyst, 0, 4),
2693 SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO,
2694 show_auto_pwm, store_auto_pwm, 0, 5),
2695 SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO,
2696 show_auto_temp, store_auto_temp, 0, 5),
2697 SENSOR_ATTR_2(pwm1_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2698 show_auto_temp_hyst, store_auto_temp_hyst, 0, 5),
2699 SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO,
2700 show_auto_pwm, store_auto_pwm, 0, 6),
2701 SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO,
2702 show_auto_temp, store_auto_temp, 0, 6),
2703 SENSOR_ATTR_2(pwm1_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2704 show_auto_temp_hyst, store_auto_temp_hyst, 0, 6),
2706 SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
2707 show_auto_pwm, store_auto_pwm, 1, 0),
2708 SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
2709 show_auto_temp, store_auto_temp, 1, 0),
2710 SENSOR_ATTR_2(pwm2_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2711 show_auto_temp_hyst, store_auto_temp_hyst, 1, 0),
2712 SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
2713 show_auto_pwm, store_auto_pwm, 1, 1),
2714 SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO,
2715 show_auto_temp, store_auto_temp, 1, 1),
2716 SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2717 show_auto_temp_hyst, store_auto_temp_hyst, 1, 1),
2718 SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO,
2719 show_auto_pwm, store_auto_pwm, 1, 2),
2720 SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO,
2721 show_auto_temp, store_auto_temp, 1, 2),
2722 SENSOR_ATTR_2(pwm2_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2723 show_auto_temp_hyst, store_auto_temp_hyst, 1, 2),
2724 SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO,
2725 show_auto_pwm, store_auto_pwm, 1, 3),
2726 SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO,
2727 show_auto_temp, store_auto_temp, 1, 3),
2728 SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2729 show_auto_temp_hyst, store_auto_temp_hyst, 1, 3),
2730 SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO,
2731 show_auto_pwm, store_auto_pwm, 1, 4),
2732 SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO,
2733 show_auto_temp, store_auto_temp, 1, 4),
2734 SENSOR_ATTR_2(pwm2_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2735 show_auto_temp_hyst, store_auto_temp_hyst, 1, 4),
2736 SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO,
2737 show_auto_pwm, store_auto_pwm, 1, 5),
2738 SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO,
2739 show_auto_temp, store_auto_temp, 1, 5),
2740 SENSOR_ATTR_2(pwm2_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2741 show_auto_temp_hyst, store_auto_temp_hyst, 1, 5),
2742 SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO,
2743 show_auto_pwm, store_auto_pwm, 1, 6),
2744 SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO,
2745 show_auto_temp, store_auto_temp, 1, 6),
2746 SENSOR_ATTR_2(pwm2_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2747 show_auto_temp_hyst, store_auto_temp_hyst, 1, 6),
2749 SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
2750 show_auto_pwm, store_auto_pwm, 2, 0),
2751 SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
2752 show_auto_temp, store_auto_temp, 2, 0),
2753 SENSOR_ATTR_2(pwm3_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2754 show_auto_temp_hyst, store_auto_temp_hyst, 2, 0),
2755 SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
2756 show_auto_pwm, store_auto_pwm, 2, 1),
2757 SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO,
2758 show_auto_temp, store_auto_temp, 2, 1),
2759 SENSOR_ATTR_2(pwm3_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2760 show_auto_temp_hyst, store_auto_temp_hyst, 2, 1),
2761 SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO,
2762 show_auto_pwm, store_auto_pwm, 2, 2),
2763 SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO,
2764 show_auto_temp, store_auto_temp, 2, 2),
2765 SENSOR_ATTR_2(pwm3_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2766 show_auto_temp_hyst, store_auto_temp_hyst, 2, 2),
2767 SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO,
2768 show_auto_pwm, store_auto_pwm, 2, 3),
2769 SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO,
2770 show_auto_temp, store_auto_temp, 2, 3),
2771 SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2772 show_auto_temp_hyst, store_auto_temp_hyst, 2, 3),
2773 SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO,
2774 show_auto_pwm, store_auto_pwm, 2, 4),
2775 SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO,
2776 show_auto_temp, store_auto_temp, 2, 4),
2777 SENSOR_ATTR_2(pwm3_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2778 show_auto_temp_hyst, store_auto_temp_hyst, 2, 4),
2779 SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO,
2780 show_auto_pwm, store_auto_pwm, 2, 5),
2781 SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO,
2782 show_auto_temp, store_auto_temp, 2, 5),
2783 SENSOR_ATTR_2(pwm3_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2784 show_auto_temp_hyst, store_auto_temp_hyst, 2, 5),
2785 SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO,
2786 show_auto_pwm, store_auto_pwm, 2, 6),
2787 SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO,
2788 show_auto_temp, store_auto_temp, 2, 6),
2789 SENSOR_ATTR_2(pwm3_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2790 show_auto_temp_hyst, store_auto_temp_hyst, 2, 6),
2792 SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
2793 show_auto_pwm, store_auto_pwm, 3, 0),
2794 SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
2795 show_auto_temp, store_auto_temp, 3, 0),
2796 SENSOR_ATTR_2(pwm4_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2797 show_auto_temp_hyst, store_auto_temp_hyst, 3, 0),
2798 SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
2799 show_auto_pwm, store_auto_pwm, 3, 1),
2800 SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO,
2801 show_auto_temp, store_auto_temp, 3, 1),
2802 SENSOR_ATTR_2(pwm4_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2803 show_auto_temp_hyst, store_auto_temp_hyst, 3, 1),
2804 SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO,
2805 show_auto_pwm, store_auto_pwm, 3, 2),
2806 SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO,
2807 show_auto_temp, store_auto_temp, 3, 2),
2808 SENSOR_ATTR_2(pwm4_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2809 show_auto_temp_hyst, store_auto_temp_hyst, 3, 2),
2810 SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO,
2811 show_auto_pwm, store_auto_pwm, 3, 3),
2812 SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO,
2813 show_auto_temp, store_auto_temp, 3, 3),
2814 SENSOR_ATTR_2(pwm4_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2815 show_auto_temp_hyst, store_auto_temp_hyst, 3, 3),
2816 SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO,
2817 show_auto_pwm, store_auto_pwm, 3, 4),
2818 SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO,
2819 show_auto_temp, store_auto_temp, 3, 4),
2820 SENSOR_ATTR_2(pwm4_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2821 show_auto_temp_hyst, store_auto_temp_hyst, 3, 4),
2822 SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO,
2823 show_auto_pwm, store_auto_pwm, 3, 5),
2824 SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO,
2825 show_auto_temp, store_auto_temp, 3, 5),
2826 SENSOR_ATTR_2(pwm4_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2827 show_auto_temp_hyst, store_auto_temp_hyst, 3, 5),
2828 SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO,
2829 show_auto_pwm, store_auto_pwm, 3, 6),
2830 SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO,
2831 show_auto_temp, store_auto_temp, 3, 6),
2832 SENSOR_ATTR_2(pwm4_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2833 show_auto_temp_hyst, store_auto_temp_hyst, 3, 6),
2835 SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO,
2836 show_auto_pwm, store_auto_pwm, 4, 0),
2837 SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO,
2838 show_auto_temp, store_auto_temp, 4, 0),
2839 SENSOR_ATTR_2(pwm5_auto_point1_temp_hyst, S_IWUSR | S_IRUGO,
2840 show_auto_temp_hyst, store_auto_temp_hyst, 4, 0),
2841 SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO,
2842 show_auto_pwm, store_auto_pwm, 4, 1),
2843 SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO,
2844 show_auto_temp, store_auto_temp, 4, 1),
2845 SENSOR_ATTR_2(pwm5_auto_point2_temp_hyst, S_IWUSR | S_IRUGO,
2846 show_auto_temp_hyst, store_auto_temp_hyst, 4, 1),
2847 SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO,
2848 show_auto_pwm, store_auto_pwm, 4, 2),
2849 SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO,
2850 show_auto_temp, store_auto_temp, 4, 2),
2851 SENSOR_ATTR_2(pwm5_auto_point3_temp_hyst, S_IWUSR | S_IRUGO,
2852 show_auto_temp_hyst, store_auto_temp_hyst, 4, 2),
2853 SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO,
2854 show_auto_pwm, store_auto_pwm, 4, 3),
2855 SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO,
2856 show_auto_temp, store_auto_temp, 4, 3),
2857 SENSOR_ATTR_2(pwm5_auto_point4_temp_hyst, S_IWUSR | S_IRUGO,
2858 show_auto_temp_hyst, store_auto_temp_hyst, 4, 3),
2859 SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO,
2860 show_auto_pwm, store_auto_pwm, 4, 4),
2861 SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO,
2862 show_auto_temp, store_auto_temp, 4, 4),
2863 SENSOR_ATTR_2(pwm5_auto_point5_temp_hyst, S_IWUSR | S_IRUGO,
2864 show_auto_temp_hyst, store_auto_temp_hyst, 4, 4),
2865 SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO,
2866 show_auto_pwm, store_auto_pwm, 4, 5),
2867 SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO,
2868 show_auto_temp, store_auto_temp, 4, 5),
2869 SENSOR_ATTR_2(pwm5_auto_point6_temp_hyst, S_IWUSR | S_IRUGO,
2870 show_auto_temp_hyst, store_auto_temp_hyst, 4, 5),
2871 SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO,
2872 show_auto_pwm, store_auto_pwm, 4, 6),
2873 SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO,
2874 show_auto_temp, store_auto_temp, 4, 6),
2875 SENSOR_ATTR_2(pwm5_auto_point7_temp_hyst, S_IWUSR | S_IRUGO,
2876 show_auto_temp_hyst, store_auto_temp_hyst, 4, 6),
2880 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
2882 struct nct6775_data *data = dev_get_drvdata(dev);
2883 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
2886 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
2888 /* Case open detection */
2891 clear_caseopen(struct device *dev, struct device_attribute *attr,
2892 const char *buf, size_t count)
2894 struct nct6775_data *data = dev_get_drvdata(dev);
2895 struct nct6775_sio_data *sio_data = dev->platform_data;
2896 int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
2901 if (kstrtoul(buf, 10, &val) || val != 0)
2904 mutex_lock(&data->update_lock);
2907 * Use CR registers to clear caseopen status.
2908 * The CR registers are the same for all chips, and not all chips
2909 * support clearing the caseopen status through "regular" registers.
2911 ret = superio_enter(sio_data->sioreg);
2915 superio_select(sio_data->sioreg, NCT6775_LD_ACPI);
2916 reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
2917 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2918 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2919 reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
2920 superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
2921 superio_exit(sio_data->sioreg);
2923 data->valid = 0; /* Force cache refresh */
2926 mutex_unlock(&data->update_lock);
2931 static struct sensor_device_attribute sda_caseopen[] = {
2932 SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
2933 clear_caseopen, INTRUSION_ALARM_BASE),
2934 SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
2935 clear_caseopen, INTRUSION_ALARM_BASE + 1),
2939 * Driver and device management
2942 static void nct6775_device_remove_files(struct device *dev)
2945 * some entries in the following arrays may not have been used in
2946 * device_create_file(), but device_remove_file() will ignore them
2949 struct nct6775_data *data = dev_get_drvdata(dev);
2951 for (i = 0; i < data->pwm_num; i++)
2952 sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]);
2954 for (i = 0; i < ARRAY_SIZE(sda_max_output); i++)
2955 device_remove_file(dev, &sda_max_output[i].dev_attr);
2957 for (i = 0; i < ARRAY_SIZE(sda_step_output); i++)
2958 device_remove_file(dev, &sda_max_output[i].dev_attr);
2960 for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++)
2961 device_remove_file(dev, &sda_weight_duty_base[i].dev_attr);
2963 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++)
2964 device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr);
2966 for (i = 0; i < data->in_num; i++)
2967 sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]);
2969 for (i = 0; i < 5; i++) {
2970 device_remove_file(dev, &sda_fan_input[i].dev_attr);
2971 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
2972 device_remove_file(dev, &sda_fan_div[i].dev_attr);
2973 device_remove_file(dev, &sda_fan_min[i].dev_attr);
2975 for (i = 0; i < NUM_TEMP; i++) {
2976 if (!(data->have_temp & (1 << i)))
2978 device_remove_file(dev, &sda_temp_input[i].dev_attr);
2979 device_remove_file(dev, &sda_temp_label[i].dev_attr);
2980 device_remove_file(dev, &sda_temp_max[i].dev_attr);
2981 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
2982 device_remove_file(dev, &sda_temp_crit[i].dev_attr);
2983 if (!(data->have_temp_fixed & (1 << i)))
2985 device_remove_file(dev, &sda_temp_type[i].dev_attr);
2986 device_remove_file(dev, &sda_temp_offset[i].dev_attr);
2987 if (i >= NUM_TEMP_ALARM)
2989 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
2992 device_remove_file(dev, &sda_caseopen[0].dev_attr);
2993 device_remove_file(dev, &sda_caseopen[1].dev_attr);
2995 device_remove_file(dev, &dev_attr_name);
2996 device_remove_file(dev, &dev_attr_cpu0_vid);
2999 /* Get the monitoring functions started */
3000 static inline void __devinit nct6775_init_device(struct nct6775_data *data)
3005 /* Start monitoring if needed */
3006 if (data->REG_CONFIG) {
3007 tmp = nct6775_read_value(data, data->REG_CONFIG);
3009 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
3012 /* Enable temperature sensors if needed */
3013 for (i = 0; i < NUM_TEMP; i++) {
3014 if (!(data->have_temp & (1 << i)))
3016 if (!data->reg_temp_config[i])
3018 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
3020 nct6775_write_value(data, data->reg_temp_config[i],
3024 /* Enable VBAT monitoring if needed */
3025 tmp = nct6775_read_value(data, data->REG_VBAT);
3027 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
3029 diode = nct6775_read_value(data, data->REG_DIODE);
3031 for (i = 0; i < data->temp_fixed_num; i++) {
3032 if (!(data->have_temp_fixed & (1 << i)))
3034 if ((tmp & (0x02 << i))) /* diode */
3035 data->temp_type[i] = 3 - ((diode >> i) & 0x02);
3036 else /* thermistor */
3037 data->temp_type[i] = 4;
3041 static int __devinit
3042 nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data,
3043 struct nct6775_data *data)
3046 bool fan3pin, fan3min, fan4pin, fan4min, fan5pin;
3047 bool pwm3pin, pwm4pin, pwm5pin;
3050 ret = superio_enter(sio_data->sioreg);
3054 /* fan4 and fan5 share some pins with the GPIO and serial flash */
3055 if (data->kind == nct6775) {
3056 regval = superio_inb(sio_data->sioreg, 0x2c);
3058 fan3pin = regval & (1 << 6);
3060 pwm3pin = regval & (1 << 7);
3062 /* On NCT6775, fan4 shares pins with the fdc interface */
3063 fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80);
3068 } else if (data->kind == nct6776) {
3069 bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
3071 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3072 regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
3077 fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
3082 fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01;
3087 fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02;
3094 } else { /* NCT6779D */
3095 regval = superio_inb(sio_data->sioreg, 0x1c);
3097 fan3pin = !(regval & (1 << 5));
3098 fan4pin = !(regval & (1 << 6));
3099 fan5pin = !(regval & (1 << 7));
3101 pwm3pin = !(regval & (1 << 0));
3102 pwm4pin = !(regval & (1 << 1));
3103 pwm5pin = !(regval & (1 << 2));
3109 superio_exit(sio_data->sioreg);
3111 data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */
3112 data->has_fan |= fan3pin << 2;
3113 data->has_fan_min |= fan3min << 2;
3115 data->has_fan |= (fan4pin << 3) | (fan5pin << 4);
3116 data->has_fan_min |= (fan4min << 3) | (fan5pin << 4);
3118 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4);
3123 static int __devinit nct6775_probe(struct platform_device *pdev)
3125 struct device *dev = &pdev->dev;
3126 struct nct6775_sio_data *sio_data = dev->platform_data;
3127 struct nct6775_data *data;
3128 struct resource *res;
3130 int src, mask, available;
3131 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
3132 const u16 *reg_temp_alternate, *reg_temp_crit;
3135 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
3136 if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
3140 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3145 data->kind = sio_data->kind;
3146 data->addr = res->start;
3147 mutex_init(&data->lock);
3148 mutex_init(&data->update_lock);
3149 data->name = nct6775_device_names[data->kind];
3150 platform_set_drvdata(pdev, data);
3152 switch (data->kind) {
3156 data->auto_pwm_num = 6;
3157 data->has_fan_div = true;
3158 data->temp_fixed_num = 3;
3160 data->ALARM_BITS = NCT6775_ALARM_BITS;
3162 data->fan_from_reg = fan_from_reg16;
3163 data->fan_from_reg_min = fan_from_reg8;
3165 data->temp_label = nct6775_temp_label;
3166 data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
3168 data->REG_CONFIG = NCT6775_REG_CONFIG;
3169 data->REG_VBAT = NCT6775_REG_VBAT;
3170 data->REG_DIODE = NCT6775_REG_DIODE;
3171 data->REG_VIN = NCT6775_REG_IN;
3172 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3173 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3174 data->REG_TARGET = NCT6775_REG_TARGET;
3175 data->REG_FAN = NCT6775_REG_FAN;
3176 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3177 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
3178 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3179 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3180 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3181 data->REG_PWM[0] = NCT6775_REG_PWM;
3182 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3183 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3184 data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
3185 data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
3186 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3187 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3188 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
3189 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
3190 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3191 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3192 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3193 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3194 data->REG_CRITICAL_TEMP_TOLERANCE
3195 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3196 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3197 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3198 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3199 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3200 data->REG_TEMP_SEL[2] = NCT6775_REG_FAN_STEP_ENABLE;
3201 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3202 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3203 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3204 data->REG_ALARM = NCT6775_REG_ALARM;
3206 reg_temp = NCT6775_REG_TEMP;
3207 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3208 reg_temp_over = NCT6775_REG_TEMP_OVER;
3209 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3210 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
3211 reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE;
3212 reg_temp_crit = NCT6775_REG_TEMP_CRIT;
3218 data->auto_pwm_num = 4;
3219 data->has_fan_div = false;
3220 data->temp_fixed_num = 3;
3222 data->ALARM_BITS = NCT6776_ALARM_BITS;
3224 data->fan_from_reg = fan_from_reg13;
3225 data->fan_from_reg_min = fan_from_reg13;
3227 data->temp_label = nct6776_temp_label;
3228 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3230 data->REG_CONFIG = NCT6775_REG_CONFIG;
3231 data->REG_VBAT = NCT6775_REG_VBAT;
3232 data->REG_DIODE = NCT6775_REG_DIODE;
3233 data->REG_VIN = NCT6775_REG_IN;
3234 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3235 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3236 data->REG_TARGET = NCT6775_REG_TARGET;
3237 data->REG_FAN = NCT6775_REG_FAN;
3238 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3239 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3240 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3241 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3242 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3243 data->REG_PWM[0] = NCT6775_REG_PWM;
3244 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3245 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3246 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3247 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3248 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3249 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3250 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3251 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3252 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3253 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3254 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3255 data->REG_CRITICAL_TEMP_TOLERANCE
3256 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3257 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3258 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3259 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3260 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3261 data->REG_TEMP_SEL[2] = NCT6775_REG_FAN_STEP_ENABLE;
3262 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3263 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3264 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3265 data->REG_ALARM = NCT6775_REG_ALARM;
3267 reg_temp = NCT6775_REG_TEMP;
3268 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3269 reg_temp_over = NCT6775_REG_TEMP_OVER;
3270 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3271 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3272 reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE;
3273 reg_temp_crit = NCT6776_REG_TEMP_CRIT;
3279 data->auto_pwm_num = 4;
3280 data->has_fan_div = false;
3281 data->temp_fixed_num = 6;
3283 data->ALARM_BITS = NCT6779_ALARM_BITS;
3285 data->fan_from_reg = fan_from_reg13;
3286 data->fan_from_reg_min = fan_from_reg13;
3288 data->temp_label = nct6779_temp_label;
3289 data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
3291 data->REG_CONFIG = NCT6775_REG_CONFIG;
3292 data->REG_VBAT = NCT6775_REG_VBAT;
3293 data->REG_DIODE = NCT6775_REG_DIODE;
3294 data->REG_VIN = NCT6779_REG_IN;
3295 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3296 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3297 data->REG_TARGET = NCT6775_REG_TARGET;
3298 data->REG_FAN = NCT6779_REG_FAN;
3299 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3300 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3301 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3302 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3303 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3304 data->REG_PWM[0] = NCT6775_REG_PWM;
3305 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3306 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3307 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3308 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3309 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3310 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3311 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3312 data->REG_TEMP_MON = NCT6775_REG_TEMP_MON;
3313 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3314 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3315 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3316 data->REG_CRITICAL_TEMP_TOLERANCE
3317 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3318 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3319 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3320 data->REG_TEMP_SEL[0] = NCT6775_REG_TEMP_SEL;
3321 data->REG_TEMP_SEL[1] = NCT6775_REG_WEIGHT_TEMP_SEL;
3322 data->REG_TEMP_SEL[2] = NCT6775_REG_FAN_STEP_ENABLE;
3323 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3324 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3325 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3326 data->REG_ALARM = NCT6779_REG_ALARM;
3328 reg_temp = NCT6779_REG_TEMP;
3329 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3330 reg_temp_over = NCT6779_REG_TEMP_OVER;
3331 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3332 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3333 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3334 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3340 data->have_in = (1 << data->in_num) - 1;
3341 data->have_temp = 0;
3344 * On some boards, not all available temperature sources are monitored,
3345 * even though some of the monitoring registers are unused.
3346 * Get list of unused monitoring registers, then detect if any fan
3347 * controls are configured to use unmonitored temperature sources.
3348 * If so, assign the unmonitored temperature sources to available
3349 * monitoring registers.
3353 for (i = 0; i < num_reg_temp; i++) {
3354 if (reg_temp[i] == 0)
3357 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3358 if (!src || (mask & (1 << src)))
3359 available |= 1 << i;
3365 * Now find unmonitored temperature registers and enable monitoring
3366 * if additional monitoring registers are available.
3368 for (i = 0; i < ARRAY_SIZE(data->REG_TEMP_SEL) && available; i++) {
3371 if (!data->REG_TEMP_SEL[i])
3373 for (j = 0; j < data->pwm_num && available; j++) {
3376 if (!data->REG_TEMP_SEL[i][j])
3378 src = nct6775_read_value(data,
3379 data->REG_TEMP_SEL[i][j]);
3381 if (!src || (mask & (1 << src)))
3383 if (src >= data->temp_label_num ||
3384 !strlen(data->temp_label[src])) {
3386 "Select source %d:%d reg 0x%x invalid (%d)\n",
3387 i, j, data->REG_TEMP_SEL[i][j], src);
3391 index = __ffs(available);
3392 nct6775_write_value(data,
3393 data->REG_TEMP_SOURCE[index],
3395 available &= ~(1 << index);
3401 s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
3402 for (i = 0; i < num_reg_temp; i++) {
3403 if (reg_temp[i] == 0)
3406 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3407 if (!src || (mask & (1 << src)))
3410 if (src >= data->temp_label_num ||
3411 !strlen(data->temp_label[src])) {
3413 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3414 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
3420 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3421 if (src <= data->temp_fixed_num) {
3422 data->have_temp |= 1 << (src - 1);
3423 data->have_temp_fixed |= 1 << (src - 1);
3424 data->reg_temp[0][src - 1] = reg_temp[i];
3425 data->reg_temp[1][src - 1] = reg_temp_over[i];
3426 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
3427 data->reg_temp_config[src - 1] = reg_temp_config[i];
3428 data->temp_src[src - 1] = src;
3435 /* Use dynamic index for other sources */
3436 data->have_temp |= 1 << s;
3437 data->reg_temp[0][s] = reg_temp[i];
3438 data->reg_temp[1][s] = reg_temp_over[i];
3439 data->reg_temp[2][s] = reg_temp_hyst[i];
3440 data->reg_temp_config[s] = reg_temp_config[i];
3441 if (reg_temp_crit[src - 1])
3442 data->reg_temp[3][s] = reg_temp_crit[src - 1];
3444 data->temp_src[s] = src;
3450 * Go through the list of alternate temp registers and enable
3452 * The temperature is already monitored if the respective bit in <mask>
3455 for (i = 0; i < data->temp_label_num - 1; i++) {
3456 if (!reg_temp_alternate[i])
3458 if (mask & (1 << (i + 1)))
3460 if (i < data->temp_fixed_num) {
3461 if (data->have_temp & (1 << i))
3463 data->have_temp |= 1 << i;
3464 data->have_temp_fixed |= 1 << i;
3465 data->reg_temp[0][i] = reg_temp_alternate[i];
3466 data->reg_temp[1][i] = reg_temp_over[i];
3467 data->reg_temp[2][i] = reg_temp_hyst[i];
3468 data->temp_src[i] = i + 1;
3472 if (s >= NUM_TEMP) /* Abort if no more space */
3475 data->have_temp |= 1 << s;
3476 data->reg_temp[0][s] = reg_temp_alternate[i];
3477 data->temp_src[s] = i + 1;
3480 #endif /* TESTING */
3482 switch (data->kind) {
3487 * On NCT6776, AUXTIN and VIN3 pins are shared.
3488 * Only way to detect it is to check if AUXTIN is used
3489 * as a temperature source, and if that source is
3492 * If that is the case, disable in6, which reports VIN3.
3493 * Otherwise disable temp3.
3495 if (data->have_temp & (1 << 2)) {
3496 u8 reg = nct6775_read_value(data,
3497 data->reg_temp_config[2]);
3499 data->have_temp &= ~(1 << 2);
3501 data->have_in &= ~(1 << 6);
3512 * There does not seem to be a clean way to detect if VINx or
3513 * AUXTINx is active, so for keep both sensor types enabled
3519 /* Initialize the chip */
3520 nct6775_init_device(data);
3522 data->vrm = vid_which_vrm();
3523 err = superio_enter(sio_data->sioreg);
3529 * We can get the VID input values directly at logical device D 0xe3.
3531 superio_select(sio_data->sioreg, NCT6775_LD_VID);
3532 data->vid = superio_inb(sio_data->sioreg, 0xe3);
3537 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
3538 tmp = superio_inb(sio_data->sioreg,
3539 NCT6775_REG_CR_FAN_DEBOUNCE);
3540 switch (data->kind) {
3549 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
3551 dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
3555 superio_exit(sio_data->sioreg);
3557 err = device_create_file(dev, &dev_attr_cpu0_vid);
3561 err = nct6775_check_fan_inputs(sio_data, data);
3565 /* Read fan clock dividers immediately */
3566 nct6775_update_fan_div_common(dev, data);
3568 /* Register sysfs hooks */
3569 for (i = 0; i < data->pwm_num; i++) {
3570 if (!(data->has_pwm & (1 << i)))
3573 err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]);
3577 if (data->REG_PWM[3]) {
3578 err = device_create_file(dev,
3579 &sda_max_output[i].dev_attr);
3583 if (data->REG_PWM[4]) {
3584 err = device_create_file(dev,
3585 &sda_step_output[i].dev_attr);
3589 if (data->REG_PWM[6]) {
3590 err = device_create_file(dev,
3591 &sda_weight_duty_base[i].dev_attr);
3596 for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) {
3597 struct sensor_device_attribute_2 *attr =
3598 &sda_auto_pwm_arrays[i];
3600 if (!(data->has_pwm & (1 << attr->nr)))
3602 if (attr->index > data->auto_pwm_num)
3604 err = device_create_file(dev, &attr->dev_attr);
3609 for (i = 0; i < data->in_num; i++) {
3610 if (!(data->have_in & (1 << i)))
3612 err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]);
3617 for (i = 0; i < 5; i++) {
3618 if (data->has_fan & (1 << i)) {
3619 err = device_create_file(dev,
3620 &sda_fan_input[i].dev_attr);
3623 err = device_create_file(dev,
3624 &sda_fan_alarm[i].dev_attr);
3627 if (data->kind != nct6776 &&
3628 data->kind != nct6779) {
3629 err = device_create_file(dev,
3630 &sda_fan_div[i].dev_attr);
3634 if (data->has_fan_min & (1 << i)) {
3635 err = device_create_file(dev,
3636 &sda_fan_min[i].dev_attr);
3643 for (i = 0; i < NUM_TEMP; i++) {
3644 if (!(data->have_temp & (1 << i)))
3646 err = device_create_file(dev, &sda_temp_input[i].dev_attr);
3649 if (data->temp_label) {
3650 err = device_create_file(dev,
3651 &sda_temp_label[i].dev_attr);
3655 if (data->reg_temp[1][i]) {
3656 err = device_create_file(dev,
3657 &sda_temp_max[i].dev_attr);
3661 if (data->reg_temp[2][i]) {
3662 err = device_create_file(dev,
3663 &sda_temp_max_hyst[i].dev_attr);
3667 if (data->reg_temp[3][i]) {
3668 err = device_create_file(dev,
3669 &sda_temp_crit[i].dev_attr);
3673 if (!(data->have_temp_fixed & (1 << i)))
3675 err = device_create_file(dev, &sda_temp_type[i].dev_attr);
3678 err = device_create_file(dev, &sda_temp_offset[i].dev_attr);
3681 if (i >= NUM_TEMP_ALARM ||
3682 data->ALARM_BITS[TEMP_ALARM_BASE + i] < 0)
3684 err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
3689 for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
3690 if (data->ALARM_BITS[INTRUSION_ALARM_BASE + i] < 0)
3692 err = device_create_file(dev, &sda_caseopen[i].dev_attr);
3697 err = device_create_file(dev, &dev_attr_name);
3701 data->hwmon_dev = hwmon_device_register(dev);
3702 if (IS_ERR(data->hwmon_dev)) {
3703 err = PTR_ERR(data->hwmon_dev);
3710 nct6775_device_remove_files(dev);
3714 static int __devexit nct6775_remove(struct platform_device *pdev)
3716 struct nct6775_data *data = platform_get_drvdata(pdev);
3718 hwmon_device_unregister(data->hwmon_dev);
3719 nct6775_device_remove_files(&pdev->dev);
3724 static struct platform_driver nct6775_driver = {
3726 .owner = THIS_MODULE,
3729 .probe = nct6775_probe,
3730 .remove = __devexit_p(nct6775_remove),
3733 /* nct6775_find() looks for a '627 in the Super-I/O config space */
3734 static int __init nct6775_find(int sioaddr, unsigned short *addr,
3735 struct nct6775_sio_data *sio_data)
3737 static const char sio_name_NCT6775[] __initconst = "NCT6775F";
3738 static const char sio_name_NCT6776[] __initconst = "NCT6776F";
3739 static const char sio_name_NCT6779[] __initconst = "NCT6779D";
3742 const char *sio_name;
3745 err = superio_enter(sioaddr);
3752 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
3753 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
3754 switch (val & SIO_ID_MASK) {
3755 case SIO_NCT6775_ID:
3756 sio_data->kind = nct6775;
3757 sio_name = sio_name_NCT6775;
3759 case SIO_NCT6776_ID:
3760 sio_data->kind = nct6776;
3761 sio_name = sio_name_NCT6776;
3763 case SIO_NCT6779_ID:
3764 sio_data->kind = nct6779;
3765 sio_name = sio_name_NCT6779;
3769 pr_debug("unsupported chip ID: 0x%04x\n", val);
3770 superio_exit(sioaddr);
3774 /* We have a known chip, find the HWM I/O address */
3775 superio_select(sioaddr, NCT6775_LD_HWM);
3776 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
3777 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
3778 *addr = val & IOREGION_ALIGNMENT;
3780 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
3781 superio_exit(sioaddr);
3785 /* Activate logical device if needed */
3786 val = superio_inb(sioaddr, SIO_REG_ENABLE);
3787 if (!(val & 0x01)) {
3788 pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
3789 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
3792 superio_exit(sioaddr);
3793 pr_info("Found %s chip at %#x\n", sio_name, *addr);
3794 sio_data->sioreg = sioaddr;
3800 * when Super-I/O functions move to a separate file, the Super-I/O
3801 * bus will manage the lifetime of the device and this module will only keep
3802 * track of the nct6775 driver. But since we platform_device_alloc(), we
3803 * must keep track of the device
3805 static struct platform_device *pdev;
3807 static int __init sensors_nct6775_init(void)
3810 unsigned short address;
3811 struct resource res;
3812 struct nct6775_sio_data sio_data;
3815 * initialize sio_data->kind and sio_data->sioreg.
3817 * when Super-I/O functions move to a separate file, the Super-I/O
3818 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
3819 * nct6775 hardware monitor, and call probe()
3821 if (nct6775_find(0x2e, &address, &sio_data) &&
3822 nct6775_find(0x4e, &address, &sio_data))
3825 err = platform_driver_register(&nct6775_driver);
3829 pdev = platform_device_alloc(DRVNAME, address);
3832 pr_err("Device allocation failed\n");
3833 goto exit_unregister;
3836 err = platform_device_add_data(pdev, &sio_data,
3837 sizeof(struct nct6775_sio_data));
3839 pr_err("Platform data allocation failed\n");
3840 goto exit_device_put;
3843 memset(&res, 0, sizeof(res));
3845 res.start = address + IOREGION_OFFSET;
3846 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
3847 res.flags = IORESOURCE_IO;
3849 err = acpi_check_resource_conflict(&res);
3851 goto exit_device_put;
3853 err = platform_device_add_resources(pdev, &res, 1);
3855 pr_err("Device resource addition failed (%d)\n", err);
3856 goto exit_device_put;
3859 /* platform_device_add calls probe() */
3860 err = platform_device_add(pdev);
3862 pr_err("Device addition failed (%d)\n", err);
3863 goto exit_device_put;
3869 platform_device_put(pdev);
3871 platform_driver_unregister(&nct6775_driver);
3876 static void __exit sensors_nct6775_exit(void)
3878 platform_device_unregister(pdev);
3879 platform_driver_unregister(&nct6775_driver);
3882 MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
3883 MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver");
3884 MODULE_LICENSE("GPL");
3886 module_init(sensors_nct6775_init);
3887 module_exit(sensors_nct6775_exit);