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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * nct6775 - Driver for the hardware monitoring functionality of
4 * Nuvoton NCT677x Super-I/O chips
5 *
6 * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net>
7 *
8 * Derived from w83627ehf driver
9 * Copyright (C) 2005-2012 Jean Delvare <jdelvare@suse.de>
10 * Copyright (C) 2006 Yuan Mu (Winbond),
11 * Rudolf Marek <r.marek@assembler.cz>
12 * David Hubbard <david.c.hubbard@gmail.com>
13 * Daniel J Blueman <daniel.blueman@gmail.com>
14 * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
15 *
16 * Shamelessly ripped from the w83627hf driver
17 * Copyright (C) 2003 Mark Studebaker
18 *
19 * Supports the following chips:
20 *
21 * Chip #vin #fan #pwm #temp chip IDs man ID
22 * nct6106d 9 3 3 6+3 0xc450 0xc1 0x5ca3
23 * nct6116d 9 5 5 3+3 0xd280 0xc1 0x5ca3
24 * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3
25 * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3
26 * nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3
27 * nct6791d 15 6 6 2+6 0xc800 0xc1 0x5ca3
28 * nct6792d 15 6 6 2+6 0xc910 0xc1 0x5ca3
29 * nct6793d 15 6 6 2+6 0xd120 0xc1 0x5ca3
30 * nct6795d 14 6 6 2+6 0xd350 0xc1 0x5ca3
31 * nct6796d 14 7 7 2+6 0xd420 0xc1 0x5ca3
32 * nct6797d 14 7 7 2+6 0xd450 0xc1 0x5ca3
33 * (0xd451)
34 * nct6798d 14 7 7 2+6 0xd428 0xc1 0x5ca3
35 * (0xd429)
36 *
37 * #temp lists the number of monitored temperature sources (first value) plus
38 * the number of directly connectable temperature sensors (second value).
39 */
40
41#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
42
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>
54#include <linux/bitops.h>
55#include <linux/dmi.h>
56#include <linux/io.h>
57#include <linux/nospec.h>
58#include "lm75.h"
59
60#define USE_ALTERNATE
61
62enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
63 nct6793, nct6795, nct6796, nct6797, nct6798 };
64
65/* used to set data->name = nct6775_device_names[data->sio_kind] */
66static const char * const nct6775_device_names[] = {
67 "nct6106",
68 "nct6116",
69 "nct6775",
70 "nct6776",
71 "nct6779",
72 "nct6791",
73 "nct6792",
74 "nct6793",
75 "nct6795",
76 "nct6796",
77 "nct6797",
78 "nct6798",
79};
80
81static const char * const nct6775_sio_names[] __initconst = {
82 "NCT6106D",
83 "NCT6116D",
84 "NCT6775F",
85 "NCT6776D/F",
86 "NCT6779D",
87 "NCT6791D",
88 "NCT6792D",
89 "NCT6793D",
90 "NCT6795D",
91 "NCT6796D",
92 "NCT6797D",
93 "NCT6798D",
94};
95
96static unsigned short force_id;
97module_param(force_id, ushort, 0);
98MODULE_PARM_DESC(force_id, "Override the detected device ID");
99
100static unsigned short fan_debounce;
101module_param(fan_debounce, ushort, 0);
102MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
103
104#define DRVNAME "nct6775"
105
106/*
107 * Super-I/O constants and functions
108 */
109
110#define NCT6775_LD_ACPI 0x0a
111#define NCT6775_LD_HWM 0x0b
112#define NCT6775_LD_VID 0x0d
113#define NCT6775_LD_12 0x12
114
115#define SIO_REG_LDSEL 0x07 /* Logical device select */
116#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
117#define SIO_REG_ENABLE 0x30 /* Logical device enable */
118#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
119
120#define SIO_NCT6106_ID 0xc450
121#define SIO_NCT6116_ID 0xd280
122#define SIO_NCT6775_ID 0xb470
123#define SIO_NCT6776_ID 0xc330
124#define SIO_NCT6779_ID 0xc560
125#define SIO_NCT6791_ID 0xc800
126#define SIO_NCT6792_ID 0xc910
127#define SIO_NCT6793_ID 0xd120
128#define SIO_NCT6795_ID 0xd350
129#define SIO_NCT6796_ID 0xd420
130#define SIO_NCT6797_ID 0xd450
131#define SIO_NCT6798_ID 0xd428
132#define SIO_ID_MASK 0xFFF8
133
134enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
135
136static inline void
137superio_outb(int ioreg, int reg, int val)
138{
139 outb(reg, ioreg);
140 outb(val, ioreg + 1);
141}
142
143static inline int
144superio_inb(int ioreg, int reg)
145{
146 outb(reg, ioreg);
147 return inb(ioreg + 1);
148}
149
150static inline void
151superio_select(int ioreg, int ld)
152{
153 outb(SIO_REG_LDSEL, ioreg);
154 outb(ld, ioreg + 1);
155}
156
157static inline int
158superio_enter(int ioreg)
159{
160 /*
161 * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
162 */
163 if (!request_muxed_region(ioreg, 2, DRVNAME))
164 return -EBUSY;
165
166 outb(0x87, ioreg);
167 outb(0x87, ioreg);
168
169 return 0;
170}
171
172static inline void
173superio_exit(int ioreg)
174{
175 outb(0xaa, ioreg);
176 outb(0x02, ioreg);
177 outb(0x02, ioreg + 1);
178 release_region(ioreg, 2);
179}
180
181/*
182 * ISA constants
183 */
184
185#define IOREGION_ALIGNMENT (~7)
186#define IOREGION_OFFSET 5
187#define IOREGION_LENGTH 2
188#define ADDR_REG_OFFSET 0
189#define DATA_REG_OFFSET 1
190
191#define NCT6775_REG_BANK 0x4E
192#define NCT6775_REG_CONFIG 0x40
193
194/*
195 * Not currently used:
196 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
197 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
198 * REG_MAN_ID is at port 0x4f
199 * REG_CHIP_ID is at port 0x58
200 */
201
202#define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
203#define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
204
205#define NUM_REG_ALARM 7 /* Max number of alarm registers */
206#define NUM_REG_BEEP 5 /* Max number of beep registers */
207
208#define NUM_FAN 7
209
210/* Common and NCT6775 specific data */
211
212/* Voltage min/max registers for nr=7..14 are in bank 5 */
213
214static const u16 NCT6775_REG_IN_MAX[] = {
215 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a,
216 0x55c, 0x55e, 0x560, 0x562 };
217static const u16 NCT6775_REG_IN_MIN[] = {
218 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b,
219 0x55d, 0x55f, 0x561, 0x563 };
220static const u16 NCT6775_REG_IN[] = {
221 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
222};
223
224#define NCT6775_REG_VBAT 0x5D
225#define NCT6775_REG_DIODE 0x5E
226#define NCT6775_DIODE_MASK 0x02
227
228#define NCT6775_REG_FANDIV1 0x506
229#define NCT6775_REG_FANDIV2 0x507
230
231#define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
232
233static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B };
234
235/* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */
236
237static const s8 NCT6775_ALARM_BITS[] = {
238 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
239 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
240 -1, /* unused */
241 6, 7, 11, -1, -1, /* fan1..fan5 */
242 -1, -1, -1, /* unused */
243 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
244 12, -1 }; /* intrusion0, intrusion1 */
245
246#define FAN_ALARM_BASE 16
247#define TEMP_ALARM_BASE 24
248#define INTRUSION_ALARM_BASE 30
249
250static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e };
251
252/*
253 * 0..14 voltages, 15 global beep enable, 16..23 fans, 24..29 temperatures,
254 * 30..31 intrusion
255 */
256static const s8 NCT6775_BEEP_BITS[] = {
257 0, 1, 2, 3, 8, 9, 10, 16, /* in0.. in7 */
258 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
259 21, /* global beep enable */
260 6, 7, 11, 28, -1, /* fan1..fan5 */
261 -1, -1, -1, /* unused */
262 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
263 12, -1 }; /* intrusion0, intrusion1 */
264
265#define BEEP_ENABLE_BASE 15
266
267static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
268static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
269
270/* DC or PWM output fan configuration */
271static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
272static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
273
274/* Advanced Fan control, some values are common for all fans */
275
276static const u16 NCT6775_REG_TARGET[] = {
277 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01, 0xb01 };
278static const u16 NCT6775_REG_FAN_MODE[] = {
279 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02, 0xb02 };
280static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
281 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03, 0xb03 };
282static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
283 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04, 0xb04 };
284static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
285 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05, 0xb05 };
286static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
287 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06, 0xb06 };
288static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
289static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
290
291static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
292 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07, 0xb07 };
293static const u16 NCT6775_REG_PWM[] = {
294 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09, 0xb09 };
295static const u16 NCT6775_REG_PWM_READ[] = {
296 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09, 0xb09 };
297
298static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
299static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
300static const u16 NCT6775_REG_FAN_PULSES[NUM_FAN] = {
301 0x641, 0x642, 0x643, 0x644 };
302static const u16 NCT6775_FAN_PULSE_SHIFT[NUM_FAN] = { };
303
304static const u16 NCT6775_REG_TEMP[] = {
305 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
306
307static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
308
309static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
310 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
311static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
312 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
313static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
314 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
315
316static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
317 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
318
319static const u16 NCT6775_REG_TEMP_SEL[] = {
320 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00, 0xb00 };
321
322static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {
323 0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 };
324static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = {
325 0x13a, 0x23a, 0x33a, 0x83a, 0x93a, 0xa3a };
326static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = {
327 0x13b, 0x23b, 0x33b, 0x83b, 0x93b, 0xa3b };
328static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = {
329 0x13c, 0x23c, 0x33c, 0x83c, 0x93c, 0xa3c };
330static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {
331 0x13d, 0x23d, 0x33d, 0x83d, 0x93d, 0xa3d };
332
333static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
334
335static const u16 NCT6775_REG_AUTO_TEMP[] = {
336 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21, 0xb21 };
337static const u16 NCT6775_REG_AUTO_PWM[] = {
338 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27, 0xb27 };
339
340#define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
341#define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
342
343static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
344
345static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
346 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35, 0xb35 };
347static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
348 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38, 0xb38 };
349
350static const char *const nct6775_temp_label[] = {
351 "",
352 "SYSTIN",
353 "CPUTIN",
354 "AUXTIN",
355 "AMD SB-TSI",
356 "PECI Agent 0",
357 "PECI Agent 1",
358 "PECI Agent 2",
359 "PECI Agent 3",
360 "PECI Agent 4",
361 "PECI Agent 5",
362 "PECI Agent 6",
363 "PECI Agent 7",
364 "PCH_CHIP_CPU_MAX_TEMP",
365 "PCH_CHIP_TEMP",
366 "PCH_CPU_TEMP",
367 "PCH_MCH_TEMP",
368 "PCH_DIM0_TEMP",
369 "PCH_DIM1_TEMP",
370 "PCH_DIM2_TEMP",
371 "PCH_DIM3_TEMP"
372};
373
374#define NCT6775_TEMP_MASK 0x001ffffe
375#define NCT6775_VIRT_TEMP_MASK 0x00000000
376
377static const u16 NCT6775_REG_TEMP_ALTERNATE[32] = {
378 [13] = 0x661,
379 [14] = 0x662,
380 [15] = 0x664,
381};
382
383static const u16 NCT6775_REG_TEMP_CRIT[32] = {
384 [4] = 0xa00,
385 [5] = 0xa01,
386 [6] = 0xa02,
387 [7] = 0xa03,
388 [8] = 0xa04,
389 [9] = 0xa05,
390 [10] = 0xa06,
391 [11] = 0xa07
392};
393
394/* NCT6776 specific data */
395
396/* STEP_UP_TIME and STEP_DOWN_TIME regs are swapped for all chips but NCT6775 */
397#define NCT6776_REG_FAN_STEP_UP_TIME NCT6775_REG_FAN_STEP_DOWN_TIME
398#define NCT6776_REG_FAN_STEP_DOWN_TIME NCT6775_REG_FAN_STEP_UP_TIME
399
400static const s8 NCT6776_ALARM_BITS[] = {
401 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
402 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
403 -1, /* unused */
404 6, 7, 11, 10, 23, /* fan1..fan5 */
405 -1, -1, -1, /* unused */
406 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
407 12, 9 }; /* intrusion0, intrusion1 */
408
409static const u16 NCT6776_REG_BEEP[NUM_REG_BEEP] = { 0xb2, 0xb3, 0xb4, 0xb5 };
410
411static const s8 NCT6776_BEEP_BITS[] = {
412 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
413 8, -1, -1, -1, -1, -1, -1, /* in8..in14 */
414 24, /* global beep enable */
415 25, 26, 27, 28, 29, /* fan1..fan5 */
416 -1, -1, -1, /* unused */
417 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
418 30, 31 }; /* intrusion0, intrusion1 */
419
420static const u16 NCT6776_REG_TOLERANCE_H[] = {
421 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c, 0xb0c };
422
423static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 };
424static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 };
425
426static const u16 NCT6776_REG_FAN_MIN[] = {
427 0x63a, 0x63c, 0x63e, 0x640, 0x642, 0x64a, 0x64c };
428static const u16 NCT6776_REG_FAN_PULSES[NUM_FAN] = {
429 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
430
431static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {
432 0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e };
433
434static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
435 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
436
437static const char *const nct6776_temp_label[] = {
438 "",
439 "SYSTIN",
440 "CPUTIN",
441 "AUXTIN",
442 "SMBUSMASTER 0",
443 "SMBUSMASTER 1",
444 "SMBUSMASTER 2",
445 "SMBUSMASTER 3",
446 "SMBUSMASTER 4",
447 "SMBUSMASTER 5",
448 "SMBUSMASTER 6",
449 "SMBUSMASTER 7",
450 "PECI Agent 0",
451 "PECI Agent 1",
452 "PCH_CHIP_CPU_MAX_TEMP",
453 "PCH_CHIP_TEMP",
454 "PCH_CPU_TEMP",
455 "PCH_MCH_TEMP",
456 "PCH_DIM0_TEMP",
457 "PCH_DIM1_TEMP",
458 "PCH_DIM2_TEMP",
459 "PCH_DIM3_TEMP",
460 "BYTE_TEMP"
461};
462
463#define NCT6776_TEMP_MASK 0x007ffffe
464#define NCT6776_VIRT_TEMP_MASK 0x00000000
465
466static const u16 NCT6776_REG_TEMP_ALTERNATE[32] = {
467 [14] = 0x401,
468 [15] = 0x402,
469 [16] = 0x404,
470};
471
472static const u16 NCT6776_REG_TEMP_CRIT[32] = {
473 [11] = 0x709,
474 [12] = 0x70a,
475};
476
477/* NCT6779 specific data */
478
479static const u16 NCT6779_REG_IN[] = {
480 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
481 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e };
482
483static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = {
484 0x459, 0x45A, 0x45B, 0x568 };
485
486static const s8 NCT6779_ALARM_BITS[] = {
487 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
488 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
489 -1, /* unused */
490 6, 7, 11, 10, 23, /* fan1..fan5 */
491 -1, -1, -1, /* unused */
492 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
493 12, 9 }; /* intrusion0, intrusion1 */
494
495static const s8 NCT6779_BEEP_BITS[] = {
496 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
497 8, 9, 10, 11, 12, 13, 14, /* in8..in14 */
498 24, /* global beep enable */
499 25, 26, 27, 28, 29, /* fan1..fan5 */
500 -1, -1, -1, /* unused */
501 16, 17, -1, -1, -1, -1, /* temp1..temp6 */
502 30, 31 }; /* intrusion0, intrusion1 */
503
504static const u16 NCT6779_REG_FAN[] = {
505 0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8, 0x4ca, 0x4ce };
506static const u16 NCT6779_REG_FAN_PULSES[NUM_FAN] = {
507 0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0x64f };
508
509static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
510 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36, 0xb36 };
511#define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
512static const u16 NCT6779_REG_CRITICAL_PWM[] = {
513 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37, 0xb37 };
514
515static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
516static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
517static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
518 0x18, 0x152 };
519static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
520 0x3a, 0x153 };
521static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
522 0x39, 0x155 };
523
524static const u16 NCT6779_REG_TEMP_OFFSET[] = {
525 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
526
527static const char *const nct6779_temp_label[] = {
528 "",
529 "SYSTIN",
530 "CPUTIN",
531 "AUXTIN0",
532 "AUXTIN1",
533 "AUXTIN2",
534 "AUXTIN3",
535 "",
536 "SMBUSMASTER 0",
537 "SMBUSMASTER 1",
538 "SMBUSMASTER 2",
539 "SMBUSMASTER 3",
540 "SMBUSMASTER 4",
541 "SMBUSMASTER 5",
542 "SMBUSMASTER 6",
543 "SMBUSMASTER 7",
544 "PECI Agent 0",
545 "PECI Agent 1",
546 "PCH_CHIP_CPU_MAX_TEMP",
547 "PCH_CHIP_TEMP",
548 "PCH_CPU_TEMP",
549 "PCH_MCH_TEMP",
550 "PCH_DIM0_TEMP",
551 "PCH_DIM1_TEMP",
552 "PCH_DIM2_TEMP",
553 "PCH_DIM3_TEMP",
554 "BYTE_TEMP",
555 "",
556 "",
557 "",
558 "",
559 "Virtual_TEMP"
560};
561
562#define NCT6779_TEMP_MASK 0x07ffff7e
563#define NCT6779_VIRT_TEMP_MASK 0x00000000
564#define NCT6791_TEMP_MASK 0x87ffff7e
565#define NCT6791_VIRT_TEMP_MASK 0x80000000
566
567static const u16 NCT6779_REG_TEMP_ALTERNATE[32]
568 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
569 0, 0, 0, 0, 0, 0, 0, 0,
570 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
571 0x408, 0 };
572
573static const u16 NCT6779_REG_TEMP_CRIT[32] = {
574 [15] = 0x709,
575 [16] = 0x70a,
576};
577
578/* NCT6791 specific data */
579
580#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
581
582static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[NUM_FAN] = { 0, 0x239 };
583static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[NUM_FAN] = { 0, 0x23a };
584static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[NUM_FAN] = { 0, 0x23b };
585static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[NUM_FAN] = { 0, 0x23c };
586static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[NUM_FAN] = { 0, 0x23d };
587static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[NUM_FAN] = { 0, 0x23e };
588
589static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
590 0x459, 0x45A, 0x45B, 0x568, 0x45D };
591
592static const s8 NCT6791_ALARM_BITS[] = {
593 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
594 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
595 -1, /* unused */
596 6, 7, 11, 10, 23, 33, /* fan1..fan6 */
597 -1, -1, /* unused */
598 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
599 12, 9 }; /* intrusion0, intrusion1 */
600
601/* NCT6792/NCT6793 specific data */
602
603static const u16 NCT6792_REG_TEMP_MON[] = {
604 0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
605static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
606 0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
607
608static const char *const nct6792_temp_label[] = {
609 "",
610 "SYSTIN",
611 "CPUTIN",
612 "AUXTIN0",
613 "AUXTIN1",
614 "AUXTIN2",
615 "AUXTIN3",
616 "",
617 "SMBUSMASTER 0",
618 "SMBUSMASTER 1",
619 "SMBUSMASTER 2",
620 "SMBUSMASTER 3",
621 "SMBUSMASTER 4",
622 "SMBUSMASTER 5",
623 "SMBUSMASTER 6",
624 "SMBUSMASTER 7",
625 "PECI Agent 0",
626 "PECI Agent 1",
627 "PCH_CHIP_CPU_MAX_TEMP",
628 "PCH_CHIP_TEMP",
629 "PCH_CPU_TEMP",
630 "PCH_MCH_TEMP",
631 "PCH_DIM0_TEMP",
632 "PCH_DIM1_TEMP",
633 "PCH_DIM2_TEMP",
634 "PCH_DIM3_TEMP",
635 "BYTE_TEMP",
636 "PECI Agent 0 Calibration",
637 "PECI Agent 1 Calibration",
638 "",
639 "",
640 "Virtual_TEMP"
641};
642
643#define NCT6792_TEMP_MASK 0x9fffff7e
644#define NCT6792_VIRT_TEMP_MASK 0x80000000
645
646static const char *const nct6793_temp_label[] = {
647 "",
648 "SYSTIN",
649 "CPUTIN",
650 "AUXTIN0",
651 "AUXTIN1",
652 "AUXTIN2",
653 "AUXTIN3",
654 "",
655 "SMBUSMASTER 0",
656 "SMBUSMASTER 1",
657 "",
658 "",
659 "",
660 "",
661 "",
662 "",
663 "PECI Agent 0",
664 "PECI Agent 1",
665 "PCH_CHIP_CPU_MAX_TEMP",
666 "PCH_CHIP_TEMP",
667 "PCH_CPU_TEMP",
668 "PCH_MCH_TEMP",
669 "Agent0 Dimm0 ",
670 "Agent0 Dimm1",
671 "Agent1 Dimm0",
672 "Agent1 Dimm1",
673 "BYTE_TEMP0",
674 "BYTE_TEMP1",
675 "PECI Agent 0 Calibration",
676 "PECI Agent 1 Calibration",
677 "",
678 "Virtual_TEMP"
679};
680
681#define NCT6793_TEMP_MASK 0xbfff037e
682#define NCT6793_VIRT_TEMP_MASK 0x80000000
683
684static const char *const nct6795_temp_label[] = {
685 "",
686 "SYSTIN",
687 "CPUTIN",
688 "AUXTIN0",
689 "AUXTIN1",
690 "AUXTIN2",
691 "AUXTIN3",
692 "",
693 "SMBUSMASTER 0",
694 "SMBUSMASTER 1",
695 "SMBUSMASTER 2",
696 "SMBUSMASTER 3",
697 "SMBUSMASTER 4",
698 "SMBUSMASTER 5",
699 "SMBUSMASTER 6",
700 "SMBUSMASTER 7",
701 "PECI Agent 0",
702 "PECI Agent 1",
703 "PCH_CHIP_CPU_MAX_TEMP",
704 "PCH_CHIP_TEMP",
705 "PCH_CPU_TEMP",
706 "PCH_MCH_TEMP",
707 "Agent0 Dimm0",
708 "Agent0 Dimm1",
709 "Agent1 Dimm0",
710 "Agent1 Dimm1",
711 "BYTE_TEMP0",
712 "BYTE_TEMP1",
713 "PECI Agent 0 Calibration",
714 "PECI Agent 1 Calibration",
715 "",
716 "Virtual_TEMP"
717};
718
719#define NCT6795_TEMP_MASK 0xbfffff7e
720#define NCT6795_VIRT_TEMP_MASK 0x80000000
721
722static const char *const nct6796_temp_label[] = {
723 "",
724 "SYSTIN",
725 "CPUTIN",
726 "AUXTIN0",
727 "AUXTIN1",
728 "AUXTIN2",
729 "AUXTIN3",
730 "AUXTIN4",
731 "SMBUSMASTER 0",
732 "SMBUSMASTER 1",
733 "Virtual_TEMP",
734 "Virtual_TEMP",
735 "",
736 "",
737 "",
738 "",
739 "PECI Agent 0",
740 "PECI Agent 1",
741 "PCH_CHIP_CPU_MAX_TEMP",
742 "PCH_CHIP_TEMP",
743 "PCH_CPU_TEMP",
744 "PCH_MCH_TEMP",
745 "Agent0 Dimm0",
746 "Agent0 Dimm1",
747 "Agent1 Dimm0",
748 "Agent1 Dimm1",
749 "BYTE_TEMP0",
750 "BYTE_TEMP1",
751 "PECI Agent 0 Calibration",
752 "PECI Agent 1 Calibration",
753 "",
754 "Virtual_TEMP"
755};
756
757#define NCT6796_TEMP_MASK 0xbfff0ffe
758#define NCT6796_VIRT_TEMP_MASK 0x80000c00
759
760static const char *const nct6798_temp_label[] = {
761 "",
762 "SYSTIN",
763 "CPUTIN",
764 "AUXTIN0",
765 "AUXTIN1",
766 "AUXTIN2",
767 "AUXTIN3",
768 "AUXTIN4",
769 "SMBUSMASTER 0",
770 "SMBUSMASTER 1",
771 "Virtual_TEMP",
772 "Virtual_TEMP",
773 "",
774 "",
775 "",
776 "",
777 "PECI Agent 0",
778 "PECI Agent 1",
779 "PCH_CHIP_CPU_MAX_TEMP",
780 "PCH_CHIP_TEMP",
781 "PCH_CPU_TEMP",
782 "PCH_MCH_TEMP",
783 "Agent0 Dimm0",
784 "Agent0 Dimm1",
785 "Agent1 Dimm0",
786 "Agent1 Dimm1",
787 "BYTE_TEMP0",
788 "BYTE_TEMP1",
789 "PECI Agent 0 Calibration", /* undocumented */
790 "PECI Agent 1 Calibration", /* undocumented */
791 "",
792 "Virtual_TEMP"
793};
794
795#define NCT6798_TEMP_MASK 0xbfff0ffe
796#define NCT6798_VIRT_TEMP_MASK 0x80000c00
797
798/* NCT6102D/NCT6106D specific data */
799
800#define NCT6106_REG_VBAT 0x318
801#define NCT6106_REG_DIODE 0x319
802#define NCT6106_DIODE_MASK 0x01
803
804static const u16 NCT6106_REG_IN_MAX[] = {
805 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 };
806static const u16 NCT6106_REG_IN_MIN[] = {
807 0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 };
808static const u16 NCT6106_REG_IN[] = {
809 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
810
811static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
812static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
813static const u16 NCT6106_REG_TEMP_HYST[] = {
814 0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
815static const u16 NCT6106_REG_TEMP_OVER[] = {
816 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 };
817static const u16 NCT6106_REG_TEMP_CRIT_L[] = {
818 0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 };
819static const u16 NCT6106_REG_TEMP_CRIT_H[] = {
820 0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 };
821static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
822static const u16 NCT6106_REG_TEMP_CONFIG[] = {
823 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc };
824
825static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 };
826static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 };
827static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6 };
828static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4 };
829
830static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
831static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
832static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
833static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 };
834static const u16 NCT6106_REG_TEMP_SOURCE[] = {
835 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 };
836
837static const u16 NCT6106_REG_CRITICAL_TEMP[] = { 0x11a, 0x12a, 0x13a };
838static const u16 NCT6106_REG_CRITICAL_TEMP_TOLERANCE[] = {
839 0x11b, 0x12b, 0x13b };
840
841static const u16 NCT6106_REG_CRITICAL_PWM_ENABLE[] = { 0x11c, 0x12c, 0x13c };
842#define NCT6106_CRITICAL_PWM_ENABLE_MASK 0x10
843static const u16 NCT6106_REG_CRITICAL_PWM[] = { 0x11d, 0x12d, 0x13d };
844
845static const u16 NCT6106_REG_FAN_STEP_UP_TIME[] = { 0x114, 0x124, 0x134 };
846static const u16 NCT6106_REG_FAN_STEP_DOWN_TIME[] = { 0x115, 0x125, 0x135 };
847static const u16 NCT6106_REG_FAN_STOP_OUTPUT[] = { 0x116, 0x126, 0x136 };
848static const u16 NCT6106_REG_FAN_START_OUTPUT[] = { 0x117, 0x127, 0x137 };
849static const u16 NCT6106_REG_FAN_STOP_TIME[] = { 0x118, 0x128, 0x138 };
850static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 };
851
852static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 };
853
854static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
855static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
856static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
857static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x18b };
858static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
859static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
860
861static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 };
862static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 };
863
864static const u16 NCT6106_REG_ALARM[NUM_REG_ALARM] = {
865 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d };
866
867static const s8 NCT6106_ALARM_BITS[] = {
868 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
869 9, -1, -1, -1, -1, -1, -1, /* in8..in14 */
870 -1, /* unused */
871 32, 33, 34, -1, -1, /* fan1..fan5 */
872 -1, -1, -1, /* unused */
873 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
874 48, -1 /* intrusion0, intrusion1 */
875};
876
877static const u16 NCT6106_REG_BEEP[NUM_REG_BEEP] = {
878 0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 };
879
880static const s8 NCT6106_BEEP_BITS[] = {
881 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
882 9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
883 32, /* global beep enable */
884 24, 25, 26, 27, 28, /* fan1..fan5 */
885 -1, -1, -1, /* unused */
886 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
887 34, -1 /* intrusion0, intrusion1 */
888};
889
890static const u16 NCT6106_REG_TEMP_ALTERNATE[32] = {
891 [14] = 0x51,
892 [15] = 0x52,
893 [16] = 0x54,
894};
895
896static const u16 NCT6106_REG_TEMP_CRIT[32] = {
897 [11] = 0x204,
898 [12] = 0x205,
899};
900
901/* NCT6112D/NCT6114D/NCT6116D specific data */
902
903static const u16 NCT6116_REG_FAN[] = { 0x20, 0x22, 0x24, 0x26, 0x28 };
904static const u16 NCT6116_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4, 0xe6, 0xe8 };
905static const u16 NCT6116_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0xf6, 0xf5 };
906static const u16 NCT6116_FAN_PULSE_SHIFT[] = { 0, 2, 4, 6, 6 };
907
908static const u16 NCT6116_REG_PWM[] = { 0x119, 0x129, 0x139, 0x199, 0x1a9 };
909static const u16 NCT6116_REG_FAN_MODE[] = { 0x113, 0x123, 0x133, 0x193, 0x1a3 };
910static const u16 NCT6116_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130, 0x190, 0x1a0 };
911static const u16 NCT6116_REG_TEMP_SOURCE[] = {
912 0xb0, 0xb1, 0xb2 };
913
914static const u16 NCT6116_REG_CRITICAL_TEMP[] = {
915 0x11a, 0x12a, 0x13a, 0x19a, 0x1aa };
916static const u16 NCT6116_REG_CRITICAL_TEMP_TOLERANCE[] = {
917 0x11b, 0x12b, 0x13b, 0x19b, 0x1ab };
918
919static const u16 NCT6116_REG_CRITICAL_PWM_ENABLE[] = {
920 0x11c, 0x12c, 0x13c, 0x19c, 0x1ac };
921static const u16 NCT6116_REG_CRITICAL_PWM[] = {
922 0x11d, 0x12d, 0x13d, 0x19d, 0x1ad };
923
924static const u16 NCT6116_REG_FAN_STEP_UP_TIME[] = {
925 0x114, 0x124, 0x134, 0x194, 0x1a4 };
926static const u16 NCT6116_REG_FAN_STEP_DOWN_TIME[] = {
927 0x115, 0x125, 0x135, 0x195, 0x1a5 };
928static const u16 NCT6116_REG_FAN_STOP_OUTPUT[] = {
929 0x116, 0x126, 0x136, 0x196, 0x1a6 };
930static const u16 NCT6116_REG_FAN_START_OUTPUT[] = {
931 0x117, 0x127, 0x137, 0x197, 0x1a7 };
932static const u16 NCT6116_REG_FAN_STOP_TIME[] = {
933 0x118, 0x128, 0x138, 0x198, 0x1a8 };
934static const u16 NCT6116_REG_TOLERANCE_H[] = {
935 0x112, 0x122, 0x132, 0x192, 0x1a2 };
936
937static const u16 NCT6116_REG_TARGET[] = {
938 0x111, 0x121, 0x131, 0x191, 0x1a1 };
939
940static const u16 NCT6116_REG_AUTO_TEMP[] = {
941 0x160, 0x170, 0x180, 0x1d0, 0x1e0 };
942static const u16 NCT6116_REG_AUTO_PWM[] = {
943 0x164, 0x174, 0x184, 0x1d4, 0x1e4 };
944
945static const s8 NCT6116_ALARM_BITS[] = {
946 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
947 9, -1, -1, -1, -1, -1, -1, /* in8..in9 */
948 -1, /* unused */
949 32, 33, 34, 35, 36, /* fan1..fan5 */
950 -1, -1, -1, /* unused */
951 16, 17, 18, -1, -1, -1, /* temp1..temp6 */
952 48, -1 /* intrusion0, intrusion1 */
953};
954
955static const s8 NCT6116_BEEP_BITS[] = {
956 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
957 9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
958 32, /* global beep enable */
959 24, 25, 26, 27, 28, /* fan1..fan5 */
960 -1, -1, -1, /* unused */
961 16, 17, 18, -1, -1, -1, /* temp1..temp6 */
962 34, -1 /* intrusion0, intrusion1 */
963};
964
965static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
966{
967 if (mode == 0 && pwm == 255)
968 return off;
969 return mode + 1;
970}
971
972static int pwm_enable_to_reg(enum pwm_enable mode)
973{
974 if (mode == off)
975 return 0;
976 return mode - 1;
977}
978
979/*
980 * Conversions
981 */
982
983/* 1 is DC mode, output in ms */
984static unsigned int step_time_from_reg(u8 reg, u8 mode)
985{
986 return mode ? 400 * reg : 100 * reg;
987}
988
989static u8 step_time_to_reg(unsigned int msec, u8 mode)
990{
991 return clamp_val((mode ? (msec + 200) / 400 :
992 (msec + 50) / 100), 1, 255);
993}
994
995static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
996{
997 if (reg == 0 || reg == 255)
998 return 0;
999 return 1350000U / (reg << divreg);
1000}
1001
1002static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
1003{
1004 if ((reg & 0xff1f) == 0xff1f)
1005 return 0;
1006
1007 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
1008
1009 if (reg == 0)
1010 return 0;
1011
1012 return 1350000U / reg;
1013}
1014
1015static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
1016{
1017 if (reg == 0 || reg == 0xffff)
1018 return 0;
1019
1020 /*
1021 * Even though the registers are 16 bit wide, the fan divisor
1022 * still applies.
1023 */
1024 return 1350000U / (reg << divreg);
1025}
1026
1027static unsigned int fan_from_reg_rpm(u16 reg, unsigned int divreg)
1028{
1029 return reg;
1030}
1031
1032static u16 fan_to_reg(u32 fan, unsigned int divreg)
1033{
1034 if (!fan)
1035 return 0;
1036
1037 return (1350000U / fan) >> divreg;
1038}
1039
1040static inline unsigned int
1041div_from_reg(u8 reg)
1042{
1043 return BIT(reg);
1044}
1045
1046/*
1047 * Some of the voltage inputs have internal scaling, the tables below
1048 * contain 8 (the ADC LSB in mV) * scaling factor * 100
1049 */
1050static const u16 scale_in[15] = {
1051 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
1052 800, 800
1053};
1054
1055static inline long in_from_reg(u8 reg, u8 nr)
1056{
1057 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
1058}
1059
1060static inline u8 in_to_reg(u32 val, u8 nr)
1061{
1062 return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255);
1063}
1064
1065/*
1066 * Data structures and manipulation thereof
1067 */
1068
1069struct nct6775_data {
1070 int addr; /* IO base of hw monitor block */
1071 int sioreg; /* SIO register address */
1072 enum kinds kind;
1073 const char *name;
1074
1075 const struct attribute_group *groups[6];
1076
1077 u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
1078 * 3=temp_crit, 4=temp_lcrit
1079 */
1080 u8 temp_src[NUM_TEMP];
1081 u16 reg_temp_config[NUM_TEMP];
1082 const char * const *temp_label;
1083 u32 temp_mask;
1084 u32 virt_temp_mask;
1085
1086 u16 REG_CONFIG;
1087 u16 REG_VBAT;
1088 u16 REG_DIODE;
1089 u8 DIODE_MASK;
1090
1091 const s8 *ALARM_BITS;
1092 const s8 *BEEP_BITS;
1093
1094 const u16 *REG_VIN;
1095 const u16 *REG_IN_MINMAX[2];
1096
1097 const u16 *REG_TARGET;
1098 const u16 *REG_FAN;
1099 const u16 *REG_FAN_MODE;
1100 const u16 *REG_FAN_MIN;
1101 const u16 *REG_FAN_PULSES;
1102 const u16 *FAN_PULSE_SHIFT;
1103 const u16 *REG_FAN_TIME[3];
1104
1105 const u16 *REG_TOLERANCE_H;
1106
1107 const u8 *REG_PWM_MODE;
1108 const u8 *PWM_MODE_MASK;
1109
1110 const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
1111 * [3]=pwm_max, [4]=pwm_step,
1112 * [5]=weight_duty_step, [6]=weight_duty_base
1113 */
1114 const u16 *REG_PWM_READ;
1115
1116 const u16 *REG_CRITICAL_PWM_ENABLE;
1117 u8 CRITICAL_PWM_ENABLE_MASK;
1118 const u16 *REG_CRITICAL_PWM;
1119
1120 const u16 *REG_AUTO_TEMP;
1121 const u16 *REG_AUTO_PWM;
1122
1123 const u16 *REG_CRITICAL_TEMP;
1124 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
1125
1126 const u16 *REG_TEMP_SOURCE; /* temp register sources */
1127 const u16 *REG_TEMP_SEL;
1128 const u16 *REG_WEIGHT_TEMP_SEL;
1129 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
1130
1131 const u16 *REG_TEMP_OFFSET;
1132
1133 const u16 *REG_ALARM;
1134 const u16 *REG_BEEP;
1135
1136 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
1137 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
1138
1139 struct mutex update_lock;
1140 bool valid; /* true if following fields are valid */
1141 unsigned long last_updated; /* In jiffies */
1142
1143 /* Register values */
1144 u8 bank; /* current register bank */
1145 u8 in_num; /* number of in inputs we have */
1146 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
1147 unsigned int rpm[NUM_FAN];
1148 u16 fan_min[NUM_FAN];
1149 u8 fan_pulses[NUM_FAN];
1150 u8 fan_div[NUM_FAN];
1151 u8 has_pwm;
1152 u8 has_fan; /* some fan inputs can be disabled */
1153 u8 has_fan_min; /* some fans don't have min register */
1154 bool has_fan_div;
1155
1156 u8 num_temp_alarms; /* 2, 3, or 6 */
1157 u8 num_temp_beeps; /* 2, 3, or 6 */
1158 u8 temp_fixed_num; /* 3 or 6 */
1159 u8 temp_type[NUM_TEMP_FIXED];
1160 s8 temp_offset[NUM_TEMP_FIXED];
1161 s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
1162 * 3=temp_crit, 4=temp_lcrit */
1163 u64 alarms;
1164 u64 beeps;
1165
1166 u8 pwm_num; /* number of pwm */
1167 u8 pwm_mode[NUM_FAN]; /* 0->DC variable voltage,
1168 * 1->PWM variable duty cycle
1169 */
1170 enum pwm_enable pwm_enable[NUM_FAN];
1171 /* 0->off
1172 * 1->manual
1173 * 2->thermal cruise mode (also called SmartFan I)
1174 * 3->fan speed cruise mode
1175 * 4->SmartFan III
1176 * 5->enhanced variable thermal cruise (SmartFan IV)
1177 */
1178 u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
1179 * [3]=pwm_max, [4]=pwm_step,
1180 * [5]=weight_duty_step, [6]=weight_duty_base
1181 */
1182
1183 u8 target_temp[NUM_FAN];
1184 u8 target_temp_mask;
1185 u32 target_speed[NUM_FAN];
1186 u32 target_speed_tolerance[NUM_FAN];
1187 u8 speed_tolerance_limit;
1188
1189 u8 temp_tolerance[2][NUM_FAN];
1190 u8 tolerance_mask;
1191
1192 u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
1193
1194 /* Automatic fan speed control registers */
1195 int auto_pwm_num;
1196 u8 auto_pwm[NUM_FAN][7];
1197 u8 auto_temp[NUM_FAN][7];
1198 u8 pwm_temp_sel[NUM_FAN];
1199 u8 pwm_weight_temp_sel[NUM_FAN];
1200 u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
1201 * 2->temp_base
1202 */
1203
1204 u8 vid;
1205 u8 vrm;
1206
1207 bool have_vid;
1208
1209 u16 have_temp;
1210 u16 have_temp_fixed;
1211 u16 have_in;
1212
1213 /* Remember extra register values over suspend/resume */
1214 u8 vbat;
1215 u8 fandiv1;
1216 u8 fandiv2;
1217 u8 sio_reg_enable;
1218};
1219
1220struct nct6775_sio_data {
1221 int sioreg;
1222 enum kinds kind;
1223};
1224
1225struct sensor_device_template {
1226 struct device_attribute dev_attr;
1227 union {
1228 struct {
1229 u8 nr;
1230 u8 index;
1231 } s;
1232 int index;
1233 } u;
1234 bool s2; /* true if both index and nr are used */
1235};
1236
1237struct sensor_device_attr_u {
1238 union {
1239 struct sensor_device_attribute a1;
1240 struct sensor_device_attribute_2 a2;
1241 } u;
1242 char name[32];
1243};
1244
1245#define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \
1246 .attr = {.name = _template, .mode = _mode }, \
1247 .show = _show, \
1248 .store = _store, \
1249}
1250
1251#define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \
1252 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
1253 .u.index = _index, \
1254 .s2 = false }
1255
1256#define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
1257 _nr, _index) \
1258 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
1259 .u.s.index = _index, \
1260 .u.s.nr = _nr, \
1261 .s2 = true }
1262
1263#define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \
1264static struct sensor_device_template sensor_dev_template_##_name \
1265 = SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \
1266 _index)
1267
1268#define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \
1269 _nr, _index) \
1270static struct sensor_device_template sensor_dev_template_##_name \
1271 = SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
1272 _nr, _index)
1273
1274struct sensor_template_group {
1275 struct sensor_device_template **templates;
1276 umode_t (*is_visible)(struct kobject *, struct attribute *, int);
1277 int base;
1278};
1279
1280static struct attribute_group *
1281nct6775_create_attr_group(struct device *dev,
1282 const struct sensor_template_group *tg,
1283 int repeat)
1284{
1285 struct attribute_group *group;
1286 struct sensor_device_attr_u *su;
1287 struct sensor_device_attribute *a;
1288 struct sensor_device_attribute_2 *a2;
1289 struct attribute **attrs;
1290 struct sensor_device_template **t;
1291 int i, count;
1292
1293 if (repeat <= 0)
1294 return ERR_PTR(-EINVAL);
1295
1296 t = tg->templates;
1297 for (count = 0; *t; t++, count++)
1298 ;
1299
1300 if (count == 0)
1301 return ERR_PTR(-EINVAL);
1302
1303 group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
1304 if (group == NULL)
1305 return ERR_PTR(-ENOMEM);
1306
1307 attrs = devm_kcalloc(dev, repeat * count + 1, sizeof(*attrs),
1308 GFP_KERNEL);
1309 if (attrs == NULL)
1310 return ERR_PTR(-ENOMEM);
1311
1312 su = devm_kzalloc(dev, array3_size(repeat, count, sizeof(*su)),
1313 GFP_KERNEL);
1314 if (su == NULL)
1315 return ERR_PTR(-ENOMEM);
1316
1317 group->attrs = attrs;
1318 group->is_visible = tg->is_visible;
1319
1320 for (i = 0; i < repeat; i++) {
1321 t = tg->templates;
1322 while (*t != NULL) {
1323 snprintf(su->name, sizeof(su->name),
1324 (*t)->dev_attr.attr.name, tg->base + i);
1325 if ((*t)->s2) {
1326 a2 = &su->u.a2;
1327 sysfs_attr_init(&a2->dev_attr.attr);
1328 a2->dev_attr.attr.name = su->name;
1329 a2->nr = (*t)->u.s.nr + i;
1330 a2->index = (*t)->u.s.index;
1331 a2->dev_attr.attr.mode =
1332 (*t)->dev_attr.attr.mode;
1333 a2->dev_attr.show = (*t)->dev_attr.show;
1334 a2->dev_attr.store = (*t)->dev_attr.store;
1335 *attrs = &a2->dev_attr.attr;
1336 } else {
1337 a = &su->u.a1;
1338 sysfs_attr_init(&a->dev_attr.attr);
1339 a->dev_attr.attr.name = su->name;
1340 a->index = (*t)->u.index + i;
1341 a->dev_attr.attr.mode =
1342 (*t)->dev_attr.attr.mode;
1343 a->dev_attr.show = (*t)->dev_attr.show;
1344 a->dev_attr.store = (*t)->dev_attr.store;
1345 *attrs = &a->dev_attr.attr;
1346 }
1347 attrs++;
1348 su++;
1349 t++;
1350 }
1351 }
1352
1353 return group;
1354}
1355
1356static bool is_word_sized(struct nct6775_data *data, u16 reg)
1357{
1358 switch (data->kind) {
1359 case nct6106:
1360 return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
1361 reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
1362 reg == 0x111 || reg == 0x121 || reg == 0x131;
1363 case nct6116:
1364 return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
1365 reg == 0x26 || reg == 0x28 || reg == 0xe0 || reg == 0xe2 ||
1366 reg == 0xe4 || reg == 0xe6 || reg == 0xe8 || reg == 0x111 ||
1367 reg == 0x121 || reg == 0x131 || reg == 0x191 || reg == 0x1a1;
1368 case nct6775:
1369 return (((reg & 0xff00) == 0x100 ||
1370 (reg & 0xff00) == 0x200) &&
1371 ((reg & 0x00ff) == 0x50 ||
1372 (reg & 0x00ff) == 0x53 ||
1373 (reg & 0x00ff) == 0x55)) ||
1374 (reg & 0xfff0) == 0x630 ||
1375 reg == 0x640 || reg == 0x642 ||
1376 reg == 0x662 ||
1377 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1378 reg == 0x73 || reg == 0x75 || reg == 0x77;
1379 case nct6776:
1380 return (((reg & 0xff00) == 0x100 ||
1381 (reg & 0xff00) == 0x200) &&
1382 ((reg & 0x00ff) == 0x50 ||
1383 (reg & 0x00ff) == 0x53 ||
1384 (reg & 0x00ff) == 0x55)) ||
1385 (reg & 0xfff0) == 0x630 ||
1386 reg == 0x402 ||
1387 reg == 0x640 || reg == 0x642 ||
1388 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1389 reg == 0x73 || reg == 0x75 || reg == 0x77;
1390 case nct6779:
1391 case nct6791:
1392 case nct6792:
1393 case nct6793:
1394 case nct6795:
1395 case nct6796:
1396 case nct6797:
1397 case nct6798:
1398 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
1399 (reg & 0xfff0) == 0x4c0 ||
1400 reg == 0x402 ||
1401 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
1402 reg == 0x640 || reg == 0x642 || reg == 0x64a ||
1403 reg == 0x64c ||
1404 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
1405 reg == 0x7b || reg == 0x7d;
1406 }
1407 return false;
1408}
1409
1410/*
1411 * On older chips, only registers 0x50-0x5f are banked.
1412 * On more recent chips, all registers are banked.
1413 * Assume that is the case and set the bank number for each access.
1414 * Cache the bank number so it only needs to be set if it changes.
1415 */
1416static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
1417{
1418 u8 bank = reg >> 8;
1419
1420 if (data->bank != bank) {
1421 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
1422 outb_p(bank, data->addr + DATA_REG_OFFSET);
1423 data->bank = bank;
1424 }
1425}
1426
1427static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
1428{
1429 int res, word_sized = is_word_sized(data, reg);
1430
1431 nct6775_set_bank(data, reg);
1432 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1433 res = inb_p(data->addr + DATA_REG_OFFSET);
1434 if (word_sized) {
1435 outb_p((reg & 0xff) + 1,
1436 data->addr + ADDR_REG_OFFSET);
1437 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
1438 }
1439 return res;
1440}
1441
1442static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
1443{
1444 int word_sized = is_word_sized(data, reg);
1445
1446 nct6775_set_bank(data, reg);
1447 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1448 if (word_sized) {
1449 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
1450 outb_p((reg & 0xff) + 1,
1451 data->addr + ADDR_REG_OFFSET);
1452 }
1453 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
1454 return 0;
1455}
1456
1457/* We left-align 8-bit temperature values to make the code simpler */
1458static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
1459{
1460 u16 res;
1461
1462 res = nct6775_read_value(data, reg);
1463 if (!is_word_sized(data, reg))
1464 res <<= 8;
1465
1466 return res;
1467}
1468
1469static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
1470{
1471 if (!is_word_sized(data, reg))
1472 value >>= 8;
1473 return nct6775_write_value(data, reg, value);
1474}
1475
1476/* This function assumes that the caller holds data->update_lock */
1477static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
1478{
1479 u8 reg;
1480
1481 switch (nr) {
1482 case 0:
1483 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
1484 | (data->fan_div[0] & 0x7);
1485 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1486 break;
1487 case 1:
1488 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
1489 | ((data->fan_div[1] << 4) & 0x70);
1490 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1491 break;
1492 case 2:
1493 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
1494 | (data->fan_div[2] & 0x7);
1495 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1496 break;
1497 case 3:
1498 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
1499 | ((data->fan_div[3] << 4) & 0x70);
1500 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1501 break;
1502 }
1503}
1504
1505static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr)
1506{
1507 if (data->kind == nct6775)
1508 nct6775_write_fan_div(data, nr);
1509}
1510
1511static void nct6775_update_fan_div(struct nct6775_data *data)
1512{
1513 u8 i;
1514
1515 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
1516 data->fan_div[0] = i & 0x7;
1517 data->fan_div[1] = (i & 0x70) >> 4;
1518 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
1519 data->fan_div[2] = i & 0x7;
1520 if (data->has_fan & BIT(3))
1521 data->fan_div[3] = (i & 0x70) >> 4;
1522}
1523
1524static void nct6775_update_fan_div_common(struct nct6775_data *data)
1525{
1526 if (data->kind == nct6775)
1527 nct6775_update_fan_div(data);
1528}
1529
1530static void nct6775_init_fan_div(struct nct6775_data *data)
1531{
1532 int i;
1533
1534 nct6775_update_fan_div_common(data);
1535 /*
1536 * For all fans, start with highest divider value if the divider
1537 * register is not initialized. This ensures that we get a
1538 * reading from the fan count register, even if it is not optimal.
1539 * We'll compute a better divider later on.
1540 */
1541 for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) {
1542 if (!(data->has_fan & BIT(i)))
1543 continue;
1544 if (data->fan_div[i] == 0) {
1545 data->fan_div[i] = 7;
1546 nct6775_write_fan_div_common(data, i);
1547 }
1548 }
1549}
1550
1551static void nct6775_init_fan_common(struct device *dev,
1552 struct nct6775_data *data)
1553{
1554 int i;
1555 u8 reg;
1556
1557 if (data->has_fan_div)
1558 nct6775_init_fan_div(data);
1559
1560 /*
1561 * If fan_min is not set (0), set it to 0xff to disable it. This
1562 * prevents the unnecessary warning when fanX_min is reported as 0.
1563 */
1564 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
1565 if (data->has_fan_min & BIT(i)) {
1566 reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
1567 if (!reg)
1568 nct6775_write_value(data, data->REG_FAN_MIN[i],
1569 data->has_fan_div ? 0xff
1570 : 0xff1f);
1571 }
1572 }
1573}
1574
1575static void nct6775_select_fan_div(struct device *dev,
1576 struct nct6775_data *data, int nr, u16 reg)
1577{
1578 u8 fan_div = data->fan_div[nr];
1579 u16 fan_min;
1580
1581 if (!data->has_fan_div)
1582 return;
1583
1584 /*
1585 * If we failed to measure the fan speed, or the reported value is not
1586 * in the optimal range, and the clock divider can be modified,
1587 * let's try that for next time.
1588 */
1589 if (reg == 0x00 && fan_div < 0x07)
1590 fan_div++;
1591 else if (reg != 0x00 && reg < 0x30 && fan_div > 0)
1592 fan_div--;
1593
1594 if (fan_div != data->fan_div[nr]) {
1595 dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n",
1596 nr + 1, div_from_reg(data->fan_div[nr]),
1597 div_from_reg(fan_div));
1598
1599 /* Preserve min limit if possible */
1600 if (data->has_fan_min & BIT(nr)) {
1601 fan_min = data->fan_min[nr];
1602 if (fan_div > data->fan_div[nr]) {
1603 if (fan_min != 255 && fan_min > 1)
1604 fan_min >>= 1;
1605 } else {
1606 if (fan_min != 255) {
1607 fan_min <<= 1;
1608 if (fan_min > 254)
1609 fan_min = 254;
1610 }
1611 }
1612 if (fan_min != data->fan_min[nr]) {
1613 data->fan_min[nr] = fan_min;
1614 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1615 fan_min);
1616 }
1617 }
1618 data->fan_div[nr] = fan_div;
1619 nct6775_write_fan_div_common(data, nr);
1620 }
1621}
1622
1623static void nct6775_update_pwm(struct device *dev)
1624{
1625 struct nct6775_data *data = dev_get_drvdata(dev);
1626 int i, j;
1627 int fanmodecfg, reg;
1628 bool duty_is_dc;
1629
1630 for (i = 0; i < data->pwm_num; i++) {
1631 if (!(data->has_pwm & BIT(i)))
1632 continue;
1633
1634 duty_is_dc = data->REG_PWM_MODE[i] &&
1635 (nct6775_read_value(data, data->REG_PWM_MODE[i])
1636 & data->PWM_MODE_MASK[i]);
1637 data->pwm_mode[i] = !duty_is_dc;
1638
1639 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
1640 for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
1641 if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
1642 data->pwm[j][i]
1643 = nct6775_read_value(data,
1644 data->REG_PWM[j][i]);
1645 }
1646 }
1647
1648 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
1649 (fanmodecfg >> 4) & 7);
1650
1651 if (!data->temp_tolerance[0][i] ||
1652 data->pwm_enable[i] != speed_cruise)
1653 data->temp_tolerance[0][i] = fanmodecfg & 0x0f;
1654 if (!data->target_speed_tolerance[i] ||
1655 data->pwm_enable[i] == speed_cruise) {
1656 u8 t = fanmodecfg & 0x0f;
1657
1658 if (data->REG_TOLERANCE_H) {
1659 t |= (nct6775_read_value(data,
1660 data->REG_TOLERANCE_H[i]) & 0x70) >> 1;
1661 }
1662 data->target_speed_tolerance[i] = t;
1663 }
1664
1665 data->temp_tolerance[1][i] =
1666 nct6775_read_value(data,
1667 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
1668
1669 reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
1670 data->pwm_temp_sel[i] = reg & 0x1f;
1671 /* If fan can stop, report floor as 0 */
1672 if (reg & 0x80)
1673 data->pwm[2][i] = 0;
1674
1675 if (!data->REG_WEIGHT_TEMP_SEL[i])
1676 continue;
1677
1678 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
1679 data->pwm_weight_temp_sel[i] = reg & 0x1f;
1680 /* If weight is disabled, report weight source as 0 */
1681 if (!(reg & 0x80))
1682 data->pwm_weight_temp_sel[i] = 0;
1683
1684 /* Weight temp data */
1685 for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
1686 data->weight_temp[j][i]
1687 = nct6775_read_value(data,
1688 data->REG_WEIGHT_TEMP[j][i]);
1689 }
1690 }
1691}
1692
1693static void nct6775_update_pwm_limits(struct device *dev)
1694{
1695 struct nct6775_data *data = dev_get_drvdata(dev);
1696 int i, j;
1697 u8 reg;
1698 u16 reg_t;
1699
1700 for (i = 0; i < data->pwm_num; i++) {
1701 if (!(data->has_pwm & BIT(i)))
1702 continue;
1703
1704 for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
1705 data->fan_time[j][i] =
1706 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
1707 }
1708
1709 reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
1710 /* Update only in matching mode or if never updated */
1711 if (!data->target_temp[i] ||
1712 data->pwm_enable[i] == thermal_cruise)
1713 data->target_temp[i] = reg_t & data->target_temp_mask;
1714 if (!data->target_speed[i] ||
1715 data->pwm_enable[i] == speed_cruise) {
1716 if (data->REG_TOLERANCE_H) {
1717 reg_t |= (nct6775_read_value(data,
1718 data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
1719 }
1720 data->target_speed[i] = reg_t;
1721 }
1722
1723 for (j = 0; j < data->auto_pwm_num; j++) {
1724 data->auto_pwm[i][j] =
1725 nct6775_read_value(data,
1726 NCT6775_AUTO_PWM(data, i, j));
1727 data->auto_temp[i][j] =
1728 nct6775_read_value(data,
1729 NCT6775_AUTO_TEMP(data, i, j));
1730 }
1731
1732 /* critical auto_pwm temperature data */
1733 data->auto_temp[i][data->auto_pwm_num] =
1734 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
1735
1736 switch (data->kind) {
1737 case nct6775:
1738 reg = nct6775_read_value(data,
1739 NCT6775_REG_CRITICAL_ENAB[i]);
1740 data->auto_pwm[i][data->auto_pwm_num] =
1741 (reg & 0x02) ? 0xff : 0x00;
1742 break;
1743 case nct6776:
1744 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
1745 break;
1746 case nct6106:
1747 case nct6116:
1748 case nct6779:
1749 case nct6791:
1750 case nct6792:
1751 case nct6793:
1752 case nct6795:
1753 case nct6796:
1754 case nct6797:
1755 case nct6798:
1756 reg = nct6775_read_value(data,
1757 data->REG_CRITICAL_PWM_ENABLE[i]);
1758 if (reg & data->CRITICAL_PWM_ENABLE_MASK)
1759 reg = nct6775_read_value(data,
1760 data->REG_CRITICAL_PWM[i]);
1761 else
1762 reg = 0xff;
1763 data->auto_pwm[i][data->auto_pwm_num] = reg;
1764 break;
1765 }
1766 }
1767}
1768
1769static struct nct6775_data *nct6775_update_device(struct device *dev)
1770{
1771 struct nct6775_data *data = dev_get_drvdata(dev);
1772 int i, j;
1773
1774 mutex_lock(&data->update_lock);
1775
1776 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1777 || !data->valid) {
1778 /* Fan clock dividers */
1779 nct6775_update_fan_div_common(data);
1780
1781 /* Measured voltages and limits */
1782 for (i = 0; i < data->in_num; i++) {
1783 if (!(data->have_in & BIT(i)))
1784 continue;
1785
1786 data->in[i][0] = nct6775_read_value(data,
1787 data->REG_VIN[i]);
1788 data->in[i][1] = nct6775_read_value(data,
1789 data->REG_IN_MINMAX[0][i]);
1790 data->in[i][2] = nct6775_read_value(data,
1791 data->REG_IN_MINMAX[1][i]);
1792 }
1793
1794 /* Measured fan speeds and limits */
1795 for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
1796 u16 reg;
1797
1798 if (!(data->has_fan & BIT(i)))
1799 continue;
1800
1801 reg = nct6775_read_value(data, data->REG_FAN[i]);
1802 data->rpm[i] = data->fan_from_reg(reg,
1803 data->fan_div[i]);
1804
1805 if (data->has_fan_min & BIT(i))
1806 data->fan_min[i] = nct6775_read_value(data,
1807 data->REG_FAN_MIN[i]);
1808
1809 if (data->REG_FAN_PULSES[i]) {
1810 data->fan_pulses[i] =
1811 (nct6775_read_value(data,
1812 data->REG_FAN_PULSES[i])
1813 >> data->FAN_PULSE_SHIFT[i]) & 0x03;
1814 }
1815
1816 nct6775_select_fan_div(dev, data, i, reg);
1817 }
1818
1819 nct6775_update_pwm(dev);
1820 nct6775_update_pwm_limits(dev);
1821
1822 /* Measured temperatures and limits */
1823 for (i = 0; i < NUM_TEMP; i++) {
1824 if (!(data->have_temp & BIT(i)))
1825 continue;
1826 for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
1827 if (data->reg_temp[j][i])
1828 data->temp[j][i]
1829 = nct6775_read_temp(data,
1830 data->reg_temp[j][i]);
1831 }
1832 if (i >= NUM_TEMP_FIXED ||
1833 !(data->have_temp_fixed & BIT(i)))
1834 continue;
1835 data->temp_offset[i]
1836 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
1837 }
1838
1839 data->alarms = 0;
1840 for (i = 0; i < NUM_REG_ALARM; i++) {
1841 u8 alarm;
1842
1843 if (!data->REG_ALARM[i])
1844 continue;
1845 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
1846 data->alarms |= ((u64)alarm) << (i << 3);
1847 }
1848
1849 data->beeps = 0;
1850 for (i = 0; i < NUM_REG_BEEP; i++) {
1851 u8 beep;
1852
1853 if (!data->REG_BEEP[i])
1854 continue;
1855 beep = nct6775_read_value(data, data->REG_BEEP[i]);
1856 data->beeps |= ((u64)beep) << (i << 3);
1857 }
1858
1859 data->last_updated = jiffies;
1860 data->valid = true;
1861 }
1862
1863 mutex_unlock(&data->update_lock);
1864 return data;
1865}
1866
1867/*
1868 * Sysfs callback functions
1869 */
1870static ssize_t
1871show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
1872{
1873 struct nct6775_data *data = nct6775_update_device(dev);
1874 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1875 int index = sattr->index;
1876 int nr = sattr->nr;
1877
1878 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
1879}
1880
1881static ssize_t
1882store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1883 size_t count)
1884{
1885 struct nct6775_data *data = dev_get_drvdata(dev);
1886 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1887 int index = sattr->index;
1888 int nr = sattr->nr;
1889 unsigned long val;
1890 int err;
1891
1892 err = kstrtoul(buf, 10, &val);
1893 if (err < 0)
1894 return err;
1895 mutex_lock(&data->update_lock);
1896 data->in[nr][index] = in_to_reg(val, nr);
1897 nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr],
1898 data->in[nr][index]);
1899 mutex_unlock(&data->update_lock);
1900 return count;
1901}
1902
1903static ssize_t
1904show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1905{
1906 struct nct6775_data *data = nct6775_update_device(dev);
1907 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1908 int nr = data->ALARM_BITS[sattr->index];
1909
1910 return sprintf(buf, "%u\n",
1911 (unsigned int)((data->alarms >> nr) & 0x01));
1912}
1913
1914static int find_temp_source(struct nct6775_data *data, int index, int count)
1915{
1916 int source = data->temp_src[index];
1917 int nr;
1918
1919 for (nr = 0; nr < count; nr++) {
1920 int src;
1921
1922 src = nct6775_read_value(data,
1923 data->REG_TEMP_SOURCE[nr]) & 0x1f;
1924 if (src == source)
1925 return nr;
1926 }
1927 return -ENODEV;
1928}
1929
1930static ssize_t
1931show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1932{
1933 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1934 struct nct6775_data *data = nct6775_update_device(dev);
1935 unsigned int alarm = 0;
1936 int nr;
1937
1938 /*
1939 * For temperatures, there is no fixed mapping from registers to alarm
1940 * bits. Alarm bits are determined by the temperature source mapping.
1941 */
1942 nr = find_temp_source(data, sattr->index, data->num_temp_alarms);
1943 if (nr >= 0) {
1944 int bit = data->ALARM_BITS[nr + TEMP_ALARM_BASE];
1945
1946 alarm = (data->alarms >> bit) & 0x01;
1947 }
1948 return sprintf(buf, "%u\n", alarm);
1949}
1950
1951static ssize_t
1952show_beep(struct device *dev, struct device_attribute *attr, char *buf)
1953{
1954 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1955 struct nct6775_data *data = nct6775_update_device(dev);
1956 int nr = data->BEEP_BITS[sattr->index];
1957
1958 return sprintf(buf, "%u\n",
1959 (unsigned int)((data->beeps >> nr) & 0x01));
1960}
1961
1962static ssize_t
1963store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
1964 size_t count)
1965{
1966 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1967 struct nct6775_data *data = dev_get_drvdata(dev);
1968 int nr = data->BEEP_BITS[sattr->index];
1969 int regindex = nr >> 3;
1970 unsigned long val;
1971 int err;
1972
1973 err = kstrtoul(buf, 10, &val);
1974 if (err < 0)
1975 return err;
1976 if (val > 1)
1977 return -EINVAL;
1978
1979 mutex_lock(&data->update_lock);
1980 if (val)
1981 data->beeps |= (1ULL << nr);
1982 else
1983 data->beeps &= ~(1ULL << nr);
1984 nct6775_write_value(data, data->REG_BEEP[regindex],
1985 (data->beeps >> (regindex << 3)) & 0xff);
1986 mutex_unlock(&data->update_lock);
1987 return count;
1988}
1989
1990static ssize_t
1991show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf)
1992{
1993 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1994 struct nct6775_data *data = nct6775_update_device(dev);
1995 unsigned int beep = 0;
1996 int nr;
1997
1998 /*
1999 * For temperatures, there is no fixed mapping from registers to beep
2000 * enable bits. Beep enable bits are determined by the temperature
2001 * source mapping.
2002 */
2003 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
2004 if (nr >= 0) {
2005 int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
2006
2007 beep = (data->beeps >> bit) & 0x01;
2008 }
2009 return sprintf(buf, "%u\n", beep);
2010}
2011
2012static ssize_t
2013store_temp_beep(struct device *dev, struct device_attribute *attr,
2014 const char *buf, size_t count)
2015{
2016 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2017 struct nct6775_data *data = dev_get_drvdata(dev);
2018 int nr, bit, regindex;
2019 unsigned long val;
2020 int err;
2021
2022 err = kstrtoul(buf, 10, &val);
2023 if (err < 0)
2024 return err;
2025 if (val > 1)
2026 return -EINVAL;
2027
2028 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
2029 if (nr < 0)
2030 return nr;
2031
2032 bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
2033 regindex = bit >> 3;
2034
2035 mutex_lock(&data->update_lock);
2036 if (val)
2037 data->beeps |= (1ULL << bit);
2038 else
2039 data->beeps &= ~(1ULL << bit);
2040 nct6775_write_value(data, data->REG_BEEP[regindex],
2041 (data->beeps >> (regindex << 3)) & 0xff);
2042 mutex_unlock(&data->update_lock);
2043
2044 return count;
2045}
2046
2047static umode_t nct6775_in_is_visible(struct kobject *kobj,
2048 struct attribute *attr, int index)
2049{
2050 struct device *dev = kobj_to_dev(kobj);
2051 struct nct6775_data *data = dev_get_drvdata(dev);
2052 int in = index / 5; /* voltage index */
2053
2054 if (!(data->have_in & BIT(in)))
2055 return 0;
2056
2057 return attr->mode;
2058}
2059
2060SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
2061SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0);
2062SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep,
2063 0);
2064SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg,
2065 store_in_reg, 0, 1);
2066SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, show_in_reg,
2067 store_in_reg, 0, 2);
2068
2069/*
2070 * nct6775_in_is_visible uses the index into the following array
2071 * to determine if attributes should be created or not.
2072 * Any change in order or content must be matched.
2073 */
2074static struct sensor_device_template *nct6775_attributes_in_template[] = {
2075 &sensor_dev_template_in_input,
2076 &sensor_dev_template_in_alarm,
2077 &sensor_dev_template_in_beep,
2078 &sensor_dev_template_in_min,
2079 &sensor_dev_template_in_max,
2080 NULL
2081};
2082
2083static const struct sensor_template_group nct6775_in_template_group = {
2084 .templates = nct6775_attributes_in_template,
2085 .is_visible = nct6775_in_is_visible,
2086};
2087
2088static ssize_t
2089show_fan(struct device *dev, struct device_attribute *attr, char *buf)
2090{
2091 struct nct6775_data *data = nct6775_update_device(dev);
2092 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2093 int nr = sattr->index;
2094
2095 return sprintf(buf, "%d\n", data->rpm[nr]);
2096}
2097
2098static ssize_t
2099show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
2100{
2101 struct nct6775_data *data = nct6775_update_device(dev);
2102 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2103 int nr = sattr->index;
2104
2105 return sprintf(buf, "%d\n",
2106 data->fan_from_reg_min(data->fan_min[nr],
2107 data->fan_div[nr]));
2108}
2109
2110static ssize_t
2111show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
2112{
2113 struct nct6775_data *data = nct6775_update_device(dev);
2114 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2115 int nr = sattr->index;
2116
2117 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
2118}
2119
2120static ssize_t
2121store_fan_min(struct device *dev, struct device_attribute *attr,
2122 const char *buf, size_t count)
2123{
2124 struct nct6775_data *data = dev_get_drvdata(dev);
2125 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2126 int nr = sattr->index;
2127 unsigned long val;
2128 unsigned int reg;
2129 u8 new_div;
2130 int err;
2131
2132 err = kstrtoul(buf, 10, &val);
2133 if (err < 0)
2134 return err;
2135
2136 mutex_lock(&data->update_lock);
2137 if (!data->has_fan_div) {
2138 /* NCT6776F or NCT6779D; we know this is a 13 bit register */
2139 if (!val) {
2140 val = 0xff1f;
2141 } else {
2142 if (val > 1350000U)
2143 val = 135000U;
2144 val = 1350000U / val;
2145 val = (val & 0x1f) | ((val << 3) & 0xff00);
2146 }
2147 data->fan_min[nr] = val;
2148 goto write_min; /* Leave fan divider alone */
2149 }
2150 if (!val) {
2151 /* No min limit, alarm disabled */
2152 data->fan_min[nr] = 255;
2153 new_div = data->fan_div[nr]; /* No change */
2154 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
2155 goto write_div;
2156 }
2157 reg = 1350000U / val;
2158 if (reg >= 128 * 255) {
2159 /*
2160 * Speed below this value cannot possibly be represented,
2161 * even with the highest divider (128)
2162 */
2163 data->fan_min[nr] = 254;
2164 new_div = 7; /* 128 == BIT(7) */
2165 dev_warn(dev,
2166 "fan%u low limit %lu below minimum %u, set to minimum\n",
2167 nr + 1, val, data->fan_from_reg_min(254, 7));
2168 } else if (!reg) {
2169 /*
2170 * Speed above this value cannot possibly be represented,
2171 * even with the lowest divider (1)
2172 */
2173 data->fan_min[nr] = 1;
2174 new_div = 0; /* 1 == BIT(0) */
2175 dev_warn(dev,
2176 "fan%u low limit %lu above maximum %u, set to maximum\n",
2177 nr + 1, val, data->fan_from_reg_min(1, 0));
2178 } else {
2179 /*
2180 * Automatically pick the best divider, i.e. the one such
2181 * that the min limit will correspond to a register value
2182 * in the 96..192 range
2183 */
2184 new_div = 0;
2185 while (reg > 192 && new_div < 7) {
2186 reg >>= 1;
2187 new_div++;
2188 }
2189 data->fan_min[nr] = reg;
2190 }
2191
2192write_div:
2193 /*
2194 * Write both the fan clock divider (if it changed) and the new
2195 * fan min (unconditionally)
2196 */
2197 if (new_div != data->fan_div[nr]) {
2198 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
2199 nr + 1, div_from_reg(data->fan_div[nr]),
2200 div_from_reg(new_div));
2201 data->fan_div[nr] = new_div;
2202 nct6775_write_fan_div_common(data, nr);
2203 /* Give the chip time to sample a new speed value */
2204 data->last_updated = jiffies;
2205 }
2206
2207write_min:
2208 nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
2209 mutex_unlock(&data->update_lock);
2210
2211 return count;
2212}
2213
2214static ssize_t
2215show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
2216{
2217 struct nct6775_data *data = nct6775_update_device(dev);
2218 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2219 int p = data->fan_pulses[sattr->index];
2220
2221 return sprintf(buf, "%d\n", p ? : 4);
2222}
2223
2224static ssize_t
2225store_fan_pulses(struct device *dev, struct device_attribute *attr,
2226 const char *buf, size_t count)
2227{
2228 struct nct6775_data *data = dev_get_drvdata(dev);
2229 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2230 int nr = sattr->index;
2231 unsigned long val;
2232 int err;
2233 u8 reg;
2234
2235 err = kstrtoul(buf, 10, &val);
2236 if (err < 0)
2237 return err;
2238
2239 if (val > 4)
2240 return -EINVAL;
2241
2242 mutex_lock(&data->update_lock);
2243 data->fan_pulses[nr] = val & 3;
2244 reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]);
2245 reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
2246 reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
2247 nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
2248 mutex_unlock(&data->update_lock);
2249
2250 return count;
2251}
2252
2253static umode_t nct6775_fan_is_visible(struct kobject *kobj,
2254 struct attribute *attr, int index)
2255{
2256 struct device *dev = kobj_to_dev(kobj);
2257 struct nct6775_data *data = dev_get_drvdata(dev);
2258 int fan = index / 6; /* fan index */
2259 int nr = index % 6; /* attribute index */
2260
2261 if (!(data->has_fan & BIT(fan)))
2262 return 0;
2263
2264 if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1)
2265 return 0;
2266 if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
2267 return 0;
2268 if (nr == 3 && !data->REG_FAN_PULSES[fan])
2269 return 0;
2270 if (nr == 4 && !(data->has_fan_min & BIT(fan)))
2271 return 0;
2272 if (nr == 5 && data->kind != nct6775)
2273 return 0;
2274
2275 return attr->mode;
2276}
2277
2278SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
2279SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL,
2280 FAN_ALARM_BASE);
2281SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep,
2282 store_beep, FAN_ALARM_BASE);
2283SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses,
2284 store_fan_pulses, 0);
2285SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min,
2286 store_fan_min, 0);
2287SENSOR_TEMPLATE(fan_div, "fan%d_div", S_IRUGO, show_fan_div, NULL, 0);
2288
2289/*
2290 * nct6775_fan_is_visible uses the index into the following array
2291 * to determine if attributes should be created or not.
2292 * Any change in order or content must be matched.
2293 */
2294static struct sensor_device_template *nct6775_attributes_fan_template[] = {
2295 &sensor_dev_template_fan_input,
2296 &sensor_dev_template_fan_alarm, /* 1 */
2297 &sensor_dev_template_fan_beep, /* 2 */
2298 &sensor_dev_template_fan_pulses,
2299 &sensor_dev_template_fan_min, /* 4 */
2300 &sensor_dev_template_fan_div, /* 5 */
2301 NULL
2302};
2303
2304static const struct sensor_template_group nct6775_fan_template_group = {
2305 .templates = nct6775_attributes_fan_template,
2306 .is_visible = nct6775_fan_is_visible,
2307 .base = 1,
2308};
2309
2310static ssize_t
2311show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
2312{
2313 struct nct6775_data *data = nct6775_update_device(dev);
2314 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2315 int nr = sattr->index;
2316
2317 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
2318}
2319
2320static ssize_t
2321show_temp(struct device *dev, struct device_attribute *attr, char *buf)
2322{
2323 struct nct6775_data *data = nct6775_update_device(dev);
2324 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2325 int nr = sattr->nr;
2326 int index = sattr->index;
2327
2328 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
2329}
2330
2331static ssize_t
2332store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
2333 size_t count)
2334{
2335 struct nct6775_data *data = dev_get_drvdata(dev);
2336 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2337 int nr = sattr->nr;
2338 int index = sattr->index;
2339 int err;
2340 long val;
2341
2342 err = kstrtol(buf, 10, &val);
2343 if (err < 0)
2344 return err;
2345
2346 mutex_lock(&data->update_lock);
2347 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
2348 nct6775_write_temp(data, data->reg_temp[index][nr],
2349 data->temp[index][nr]);
2350 mutex_unlock(&data->update_lock);
2351 return count;
2352}
2353
2354static ssize_t
2355show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
2356{
2357 struct nct6775_data *data = nct6775_update_device(dev);
2358 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2359
2360 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
2361}
2362
2363static ssize_t
2364store_temp_offset(struct device *dev, struct device_attribute *attr,
2365 const char *buf, size_t count)
2366{
2367 struct nct6775_data *data = dev_get_drvdata(dev);
2368 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2369 int nr = sattr->index;
2370 long val;
2371 int err;
2372
2373 err = kstrtol(buf, 10, &val);
2374 if (err < 0)
2375 return err;
2376
2377 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
2378
2379 mutex_lock(&data->update_lock);
2380 data->temp_offset[nr] = val;
2381 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
2382 mutex_unlock(&data->update_lock);
2383
2384 return count;
2385}
2386
2387static ssize_t
2388show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
2389{
2390 struct nct6775_data *data = nct6775_update_device(dev);
2391 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2392 int nr = sattr->index;
2393
2394 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
2395}
2396
2397static ssize_t
2398store_temp_type(struct device *dev, struct device_attribute *attr,
2399 const char *buf, size_t count)
2400{
2401 struct nct6775_data *data = nct6775_update_device(dev);
2402 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2403 int nr = sattr->index;
2404 unsigned long val;
2405 int err;
2406 u8 vbat, diode, vbit, dbit;
2407
2408 err = kstrtoul(buf, 10, &val);
2409 if (err < 0)
2410 return err;
2411
2412 if (val != 1 && val != 3 && val != 4)
2413 return -EINVAL;
2414
2415 mutex_lock(&data->update_lock);
2416
2417 data->temp_type[nr] = val;
2418 vbit = 0x02 << nr;
2419 dbit = data->DIODE_MASK << nr;
2420 vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit;
2421 diode = nct6775_read_value(data, data->REG_DIODE) & ~dbit;
2422 switch (val) {
2423 case 1: /* CPU diode (diode, current mode) */
2424 vbat |= vbit;
2425 diode |= dbit;
2426 break;
2427 case 3: /* diode, voltage mode */
2428 vbat |= dbit;
2429 break;
2430 case 4: /* thermistor */
2431 break;
2432 }
2433 nct6775_write_value(data, data->REG_VBAT, vbat);
2434 nct6775_write_value(data, data->REG_DIODE, diode);
2435
2436 mutex_unlock(&data->update_lock);
2437 return count;
2438}
2439
2440static umode_t nct6775_temp_is_visible(struct kobject *kobj,
2441 struct attribute *attr, int index)
2442{
2443 struct device *dev = kobj_to_dev(kobj);
2444 struct nct6775_data *data = dev_get_drvdata(dev);
2445 int temp = index / 10; /* temp index */
2446 int nr = index % 10; /* attribute index */
2447
2448 if (!(data->have_temp & BIT(temp)))
2449 return 0;
2450
2451 if (nr == 1 && !data->temp_label)
2452 return 0;
2453
2454 if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
2455 return 0; /* alarm */
2456
2457 if (nr == 3 && find_temp_source(data, temp, data->num_temp_beeps) < 0)
2458 return 0; /* beep */
2459
2460 if (nr == 4 && !data->reg_temp[1][temp]) /* max */
2461 return 0;
2462
2463 if (nr == 5 && !data->reg_temp[2][temp]) /* max_hyst */
2464 return 0;
2465
2466 if (nr == 6 && !data->reg_temp[3][temp]) /* crit */
2467 return 0;
2468
2469 if (nr == 7 && !data->reg_temp[4][temp]) /* lcrit */
2470 return 0;
2471
2472 /* offset and type only apply to fixed sensors */
2473 if (nr > 7 && !(data->have_temp_fixed & BIT(temp)))
2474 return 0;
2475
2476 return attr->mode;
2477}
2478
2479SENSOR_TEMPLATE_2(temp_input, "temp%d_input", S_IRUGO, show_temp, NULL, 0, 0);
2480SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
2481SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO | S_IWUSR, show_temp,
2482 store_temp, 0, 1);
2483SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR,
2484 show_temp, store_temp, 0, 2);
2485SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp,
2486 store_temp, 0, 3);
2487SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp,
2488 store_temp, 0, 4);
2489SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR,
2490 show_temp_offset, store_temp_offset, 0);
2491SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type,
2492 store_temp_type, 0);
2493SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", S_IRUGO, show_temp_alarm, NULL, 0);
2494SENSOR_TEMPLATE(temp_beep, "temp%d_beep", S_IRUGO | S_IWUSR, show_temp_beep,
2495 store_temp_beep, 0);
2496
2497/*
2498 * nct6775_temp_is_visible uses the index into the following array
2499 * to determine if attributes should be created or not.
2500 * Any change in order or content must be matched.
2501 */
2502static struct sensor_device_template *nct6775_attributes_temp_template[] = {
2503 &sensor_dev_template_temp_input,
2504 &sensor_dev_template_temp_label,
2505 &sensor_dev_template_temp_alarm, /* 2 */
2506 &sensor_dev_template_temp_beep, /* 3 */
2507 &sensor_dev_template_temp_max, /* 4 */
2508 &sensor_dev_template_temp_max_hyst, /* 5 */
2509 &sensor_dev_template_temp_crit, /* 6 */
2510 &sensor_dev_template_temp_lcrit, /* 7 */
2511 &sensor_dev_template_temp_offset, /* 8 */
2512 &sensor_dev_template_temp_type, /* 9 */
2513 NULL
2514};
2515
2516static const struct sensor_template_group nct6775_temp_template_group = {
2517 .templates = nct6775_attributes_temp_template,
2518 .is_visible = nct6775_temp_is_visible,
2519 .base = 1,
2520};
2521
2522static ssize_t
2523show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
2524{
2525 struct nct6775_data *data = nct6775_update_device(dev);
2526 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2527
2528 return sprintf(buf, "%d\n", data->pwm_mode[sattr->index]);
2529}
2530
2531static ssize_t
2532store_pwm_mode(struct device *dev, struct device_attribute *attr,
2533 const char *buf, size_t count)
2534{
2535 struct nct6775_data *data = dev_get_drvdata(dev);
2536 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2537 int nr = sattr->index;
2538 unsigned long val;
2539 int err;
2540 u8 reg;
2541
2542 err = kstrtoul(buf, 10, &val);
2543 if (err < 0)
2544 return err;
2545
2546 if (val > 1)
2547 return -EINVAL;
2548
2549 /* Setting DC mode (0) is not supported for all chips/channels */
2550 if (data->REG_PWM_MODE[nr] == 0) {
2551 if (!val)
2552 return -EINVAL;
2553 return count;
2554 }
2555
2556 mutex_lock(&data->update_lock);
2557 data->pwm_mode[nr] = val;
2558 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
2559 reg &= ~data->PWM_MODE_MASK[nr];
2560 if (!val)
2561 reg |= data->PWM_MODE_MASK[nr];
2562 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
2563 mutex_unlock(&data->update_lock);
2564 return count;
2565}
2566
2567static ssize_t
2568show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2569{
2570 struct nct6775_data *data = nct6775_update_device(dev);
2571 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2572 int nr = sattr->nr;
2573 int index = sattr->index;
2574 int pwm;
2575
2576 /*
2577 * For automatic fan control modes, show current pwm readings.
2578 * Otherwise, show the configured value.
2579 */
2580 if (index == 0 && data->pwm_enable[nr] > manual)
2581 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
2582 else
2583 pwm = data->pwm[index][nr];
2584
2585 return sprintf(buf, "%d\n", pwm);
2586}
2587
2588static ssize_t
2589store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
2590 size_t count)
2591{
2592 struct nct6775_data *data = dev_get_drvdata(dev);
2593 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2594 int nr = sattr->nr;
2595 int index = sattr->index;
2596 unsigned long val;
2597 int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
2598 int maxval[7]
2599 = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
2600 int err;
2601 u8 reg;
2602
2603 err = kstrtoul(buf, 10, &val);
2604 if (err < 0)
2605 return err;
2606 val = clamp_val(val, minval[index], maxval[index]);
2607
2608 mutex_lock(&data->update_lock);
2609 data->pwm[index][nr] = val;
2610 nct6775_write_value(data, data->REG_PWM[index][nr], val);
2611 if (index == 2) { /* floor: disable if val == 0 */
2612 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2613 reg &= 0x7f;
2614 if (val)
2615 reg |= 0x80;
2616 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2617 }
2618 mutex_unlock(&data->update_lock);
2619 return count;
2620}
2621
2622/* Returns 0 if OK, -EINVAL otherwise */
2623static int check_trip_points(struct nct6775_data *data, int nr)
2624{
2625 int i;
2626
2627 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2628 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
2629 return -EINVAL;
2630 }
2631 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2632 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
2633 return -EINVAL;
2634 }
2635 /* validate critical temperature and pwm if enabled (pwm > 0) */
2636 if (data->auto_pwm[nr][data->auto_pwm_num]) {
2637 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
2638 data->auto_temp[nr][data->auto_pwm_num] ||
2639 data->auto_pwm[nr][data->auto_pwm_num - 1] >
2640 data->auto_pwm[nr][data->auto_pwm_num])
2641 return -EINVAL;
2642 }
2643 return 0;
2644}
2645
2646static void pwm_update_registers(struct nct6775_data *data, int nr)
2647{
2648 u8 reg;
2649
2650 switch (data->pwm_enable[nr]) {
2651 case off:
2652 case manual:
2653 break;
2654 case speed_cruise:
2655 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2656 reg = (reg & ~data->tolerance_mask) |
2657 (data->target_speed_tolerance[nr] & data->tolerance_mask);
2658 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2659 nct6775_write_value(data, data->REG_TARGET[nr],
2660 data->target_speed[nr] & 0xff);
2661 if (data->REG_TOLERANCE_H) {
2662 reg = (data->target_speed[nr] >> 8) & 0x0f;
2663 reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
2664 nct6775_write_value(data,
2665 data->REG_TOLERANCE_H[nr],
2666 reg);
2667 }
2668 break;
2669 case thermal_cruise:
2670 nct6775_write_value(data, data->REG_TARGET[nr],
2671 data->target_temp[nr]);
2672 fallthrough;
2673 default:
2674 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2675 reg = (reg & ~data->tolerance_mask) |
2676 data->temp_tolerance[0][nr];
2677 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2678 break;
2679 }
2680}
2681
2682static ssize_t
2683show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
2684{
2685 struct nct6775_data *data = nct6775_update_device(dev);
2686 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2687
2688 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
2689}
2690
2691static ssize_t
2692store_pwm_enable(struct device *dev, struct device_attribute *attr,
2693 const char *buf, size_t count)
2694{
2695 struct nct6775_data *data = dev_get_drvdata(dev);
2696 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2697 int nr = sattr->index;
2698 unsigned long val;
2699 int err;
2700 u16 reg;
2701
2702 err = kstrtoul(buf, 10, &val);
2703 if (err < 0)
2704 return err;
2705
2706 if (val > sf4)
2707 return -EINVAL;
2708
2709 if (val == sf3 && data->kind != nct6775)
2710 return -EINVAL;
2711
2712 if (val == sf4 && check_trip_points(data, nr)) {
2713 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
2714 dev_err(dev, "Adjust trip points and try again\n");
2715 return -EINVAL;
2716 }
2717
2718 mutex_lock(&data->update_lock);
2719 data->pwm_enable[nr] = val;
2720 if (val == off) {
2721 /*
2722 * turn off pwm control: select manual mode, set pwm to maximum
2723 */
2724 data->pwm[0][nr] = 255;
2725 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
2726 }
2727 pwm_update_registers(data, nr);
2728 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2729 reg &= 0x0f;
2730 reg |= pwm_enable_to_reg(val) << 4;
2731 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2732 mutex_unlock(&data->update_lock);
2733 return count;
2734}
2735
2736static ssize_t
2737show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)
2738{
2739 int i, sel = 0;
2740
2741 for (i = 0; i < NUM_TEMP; i++) {
2742 if (!(data->have_temp & BIT(i)))
2743 continue;
2744 if (src == data->temp_src[i]) {
2745 sel = i + 1;
2746 break;
2747 }
2748 }
2749
2750 return sprintf(buf, "%d\n", sel);
2751}
2752
2753static ssize_t
2754show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
2755{
2756 struct nct6775_data *data = nct6775_update_device(dev);
2757 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2758 int index = sattr->index;
2759
2760 return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]);
2761}
2762
2763static ssize_t
2764store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
2765 const char *buf, size_t count)
2766{
2767 struct nct6775_data *data = nct6775_update_device(dev);
2768 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2769 int nr = sattr->index;
2770 unsigned long val;
2771 int err, reg, src;
2772
2773 err = kstrtoul(buf, 10, &val);
2774 if (err < 0)
2775 return err;
2776 if (val == 0 || val > NUM_TEMP)
2777 return -EINVAL;
2778 if (!(data->have_temp & BIT(val - 1)) || !data->temp_src[val - 1])
2779 return -EINVAL;
2780
2781 mutex_lock(&data->update_lock);
2782 src = data->temp_src[val - 1];
2783 data->pwm_temp_sel[nr] = src;
2784 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2785 reg &= 0xe0;
2786 reg |= src;
2787 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2788 mutex_unlock(&data->update_lock);
2789
2790 return count;
2791}
2792
2793static ssize_t
2794show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2795 char *buf)
2796{
2797 struct nct6775_data *data = nct6775_update_device(dev);
2798 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2799 int index = sattr->index;
2800
2801 return show_pwm_temp_sel_common(data, buf,
2802 data->pwm_weight_temp_sel[index]);
2803}
2804
2805static ssize_t
2806store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2807 const char *buf, size_t count)
2808{
2809 struct nct6775_data *data = nct6775_update_device(dev);
2810 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2811 int nr = sattr->index;
2812 unsigned long val;
2813 int err, reg, src;
2814
2815 err = kstrtoul(buf, 10, &val);
2816 if (err < 0)
2817 return err;
2818 if (val > NUM_TEMP)
2819 return -EINVAL;
2820 val = array_index_nospec(val, NUM_TEMP + 1);
2821 if (val && (!(data->have_temp & BIT(val - 1)) ||
2822 !data->temp_src[val - 1]))
2823 return -EINVAL;
2824
2825 mutex_lock(&data->update_lock);
2826 if (val) {
2827 src = data->temp_src[val - 1];
2828 data->pwm_weight_temp_sel[nr] = src;
2829 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2830 reg &= 0xe0;
2831 reg |= (src | 0x80);
2832 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2833 } else {
2834 data->pwm_weight_temp_sel[nr] = 0;
2835 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2836 reg &= 0x7f;
2837 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2838 }
2839 mutex_unlock(&data->update_lock);
2840
2841 return count;
2842}
2843
2844static ssize_t
2845show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
2846{
2847 struct nct6775_data *data = nct6775_update_device(dev);
2848 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2849
2850 return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000);
2851}
2852
2853static ssize_t
2854store_target_temp(struct device *dev, struct device_attribute *attr,
2855 const char *buf, size_t count)
2856{
2857 struct nct6775_data *data = dev_get_drvdata(dev);
2858 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2859 int nr = sattr->index;
2860 unsigned long val;
2861 int err;
2862
2863 err = kstrtoul(buf, 10, &val);
2864 if (err < 0)
2865 return err;
2866
2867 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0,
2868 data->target_temp_mask);
2869
2870 mutex_lock(&data->update_lock);
2871 data->target_temp[nr] = val;
2872 pwm_update_registers(data, nr);
2873 mutex_unlock(&data->update_lock);
2874 return count;
2875}
2876
2877static ssize_t
2878show_target_speed(struct device *dev, struct device_attribute *attr, char *buf)
2879{
2880 struct nct6775_data *data = nct6775_update_device(dev);
2881 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2882 int nr = sattr->index;
2883
2884 return sprintf(buf, "%d\n",
2885 fan_from_reg16(data->target_speed[nr],
2886 data->fan_div[nr]));
2887}
2888
2889static ssize_t
2890store_target_speed(struct device *dev, struct device_attribute *attr,
2891 const char *buf, size_t count)
2892{
2893 struct nct6775_data *data = dev_get_drvdata(dev);
2894 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2895 int nr = sattr->index;
2896 unsigned long val;
2897 int err;
2898 u16 speed;
2899
2900 err = kstrtoul(buf, 10, &val);
2901 if (err < 0)
2902 return err;
2903
2904 val = clamp_val(val, 0, 1350000U);
2905 speed = fan_to_reg(val, data->fan_div[nr]);
2906
2907 mutex_lock(&data->update_lock);
2908 data->target_speed[nr] = speed;
2909 pwm_update_registers(data, nr);
2910 mutex_unlock(&data->update_lock);
2911 return count;
2912}
2913
2914static ssize_t
2915show_temp_tolerance(struct device *dev, struct device_attribute *attr,
2916 char *buf)
2917{
2918 struct nct6775_data *data = nct6775_update_device(dev);
2919 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2920 int nr = sattr->nr;
2921 int index = sattr->index;
2922
2923 return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000);
2924}
2925
2926static ssize_t
2927store_temp_tolerance(struct device *dev, struct device_attribute *attr,
2928 const char *buf, size_t count)
2929{
2930 struct nct6775_data *data = dev_get_drvdata(dev);
2931 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2932 int nr = sattr->nr;
2933 int index = sattr->index;
2934 unsigned long val;
2935 int err;
2936
2937 err = kstrtoul(buf, 10, &val);
2938 if (err < 0)
2939 return err;
2940
2941 /* Limit tolerance as needed */
2942 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask);
2943
2944 mutex_lock(&data->update_lock);
2945 data->temp_tolerance[index][nr] = val;
2946 if (index)
2947 pwm_update_registers(data, nr);
2948 else
2949 nct6775_write_value(data,
2950 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
2951 val);
2952 mutex_unlock(&data->update_lock);
2953 return count;
2954}
2955
2956/*
2957 * Fan speed tolerance is a tricky beast, since the associated register is
2958 * a tick counter, but the value is reported and configured as rpm.
2959 * Compute resulting low and high rpm values and report the difference.
2960 * A fan speed tolerance only makes sense if a fan target speed has been
2961 * configured, so only display values other than 0 if that is the case.
2962 */
2963static ssize_t
2964show_speed_tolerance(struct device *dev, struct device_attribute *attr,
2965 char *buf)
2966{
2967 struct nct6775_data *data = nct6775_update_device(dev);
2968 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2969 int nr = sattr->index;
2970 int target = data->target_speed[nr];
2971 int tolerance = 0;
2972
2973 if (target) {
2974 int low = target - data->target_speed_tolerance[nr];
2975 int high = target + data->target_speed_tolerance[nr];
2976
2977 if (low <= 0)
2978 low = 1;
2979 if (high > 0xffff)
2980 high = 0xffff;
2981 if (high < low)
2982 high = low;
2983
2984 tolerance = (fan_from_reg16(low, data->fan_div[nr])
2985 - fan_from_reg16(high, data->fan_div[nr])) / 2;
2986 }
2987
2988 return sprintf(buf, "%d\n", tolerance);
2989}
2990
2991static ssize_t
2992store_speed_tolerance(struct device *dev, struct device_attribute *attr,
2993 const char *buf, size_t count)
2994{
2995 struct nct6775_data *data = dev_get_drvdata(dev);
2996 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2997 int nr = sattr->index;
2998 unsigned long val;
2999 int err;
3000 int low, high;
3001
3002 err = kstrtoul(buf, 10, &val);
3003 if (err < 0)
3004 return err;
3005
3006 high = fan_from_reg16(data->target_speed[nr],
3007 data->fan_div[nr]) + val;
3008 low = fan_from_reg16(data->target_speed[nr],
3009 data->fan_div[nr]) - val;
3010 if (low <= 0)
3011 low = 1;
3012 if (high < low)
3013 high = low;
3014
3015 val = (fan_to_reg(low, data->fan_div[nr]) -
3016 fan_to_reg(high, data->fan_div[nr])) / 2;
3017
3018 /* Limit tolerance as needed */
3019 val = clamp_val(val, 0, data->speed_tolerance_limit);
3020
3021 mutex_lock(&data->update_lock);
3022 data->target_speed_tolerance[nr] = val;
3023 pwm_update_registers(data, nr);
3024 mutex_unlock(&data->update_lock);
3025 return count;
3026}
3027
3028SENSOR_TEMPLATE_2(pwm, "pwm%d", S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
3029SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", S_IWUSR | S_IRUGO, show_pwm_mode,
3030 store_pwm_mode, 0);
3031SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", S_IWUSR | S_IRUGO, show_pwm_enable,
3032 store_pwm_enable, 0);
3033SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", S_IWUSR | S_IRUGO,
3034 show_pwm_temp_sel, store_pwm_temp_sel, 0);
3035SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", S_IWUSR | S_IRUGO,
3036 show_target_temp, store_target_temp, 0);
3037SENSOR_TEMPLATE(fan_target, "fan%d_target", S_IWUSR | S_IRUGO,
3038 show_target_speed, store_target_speed, 0);
3039SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", S_IWUSR | S_IRUGO,
3040 show_speed_tolerance, store_speed_tolerance, 0);
3041
3042/* Smart Fan registers */
3043
3044static ssize_t
3045show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
3046{
3047 struct nct6775_data *data = nct6775_update_device(dev);
3048 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3049 int nr = sattr->nr;
3050 int index = sattr->index;
3051
3052 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
3053}
3054
3055static ssize_t
3056store_weight_temp(struct device *dev, struct device_attribute *attr,
3057 const char *buf, size_t count)
3058{
3059 struct nct6775_data *data = dev_get_drvdata(dev);
3060 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3061 int nr = sattr->nr;
3062 int index = sattr->index;
3063 unsigned long val;
3064 int err;
3065
3066 err = kstrtoul(buf, 10, &val);
3067 if (err < 0)
3068 return err;
3069
3070 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
3071
3072 mutex_lock(&data->update_lock);
3073 data->weight_temp[index][nr] = val;
3074 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
3075 mutex_unlock(&data->update_lock);
3076 return count;
3077}
3078
3079SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", S_IWUSR | S_IRUGO,
3080 show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0);
3081SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step",
3082 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 0);
3083SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol",
3084 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 1);
3085SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base",
3086 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 2);
3087SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step",
3088 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 5);
3089SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base",
3090 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 6);
3091
3092static ssize_t
3093show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
3094{
3095 struct nct6775_data *data = nct6775_update_device(dev);
3096 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3097 int nr = sattr->nr;
3098 int index = sattr->index;
3099
3100 return sprintf(buf, "%d\n",
3101 step_time_from_reg(data->fan_time[index][nr],
3102 data->pwm_mode[nr]));
3103}
3104
3105static ssize_t
3106store_fan_time(struct device *dev, struct device_attribute *attr,
3107 const char *buf, size_t count)
3108{
3109 struct nct6775_data *data = dev_get_drvdata(dev);
3110 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3111 int nr = sattr->nr;
3112 int index = sattr->index;
3113 unsigned long val;
3114 int err;
3115
3116 err = kstrtoul(buf, 10, &val);
3117 if (err < 0)
3118 return err;
3119
3120 val = step_time_to_reg(val, data->pwm_mode[nr]);
3121 mutex_lock(&data->update_lock);
3122 data->fan_time[index][nr] = val;
3123 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
3124 mutex_unlock(&data->update_lock);
3125 return count;
3126}
3127
3128static ssize_t
3129show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
3130{
3131 struct nct6775_data *data = nct6775_update_device(dev);
3132 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3133
3134 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
3135}
3136
3137static ssize_t
3138store_auto_pwm(struct device *dev, struct device_attribute *attr,
3139 const char *buf, size_t count)
3140{
3141 struct nct6775_data *data = dev_get_drvdata(dev);
3142 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3143 int nr = sattr->nr;
3144 int point = sattr->index;
3145 unsigned long val;
3146 int err;
3147 u8 reg;
3148
3149 err = kstrtoul(buf, 10, &val);
3150 if (err < 0)
3151 return err;
3152 if (val > 255)
3153 return -EINVAL;
3154
3155 if (point == data->auto_pwm_num) {
3156 if (data->kind != nct6775 && !val)
3157 return -EINVAL;
3158 if (data->kind != nct6779 && val)
3159 val = 0xff;
3160 }
3161
3162 mutex_lock(&data->update_lock);
3163 data->auto_pwm[nr][point] = val;
3164 if (point < data->auto_pwm_num) {
3165 nct6775_write_value(data,
3166 NCT6775_AUTO_PWM(data, nr, point),
3167 data->auto_pwm[nr][point]);
3168 } else {
3169 switch (data->kind) {
3170 case nct6775:
3171 /* disable if needed (pwm == 0) */
3172 reg = nct6775_read_value(data,
3173 NCT6775_REG_CRITICAL_ENAB[nr]);
3174 if (val)
3175 reg |= 0x02;
3176 else
3177 reg &= ~0x02;
3178 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
3179 reg);
3180 break;
3181 case nct6776:
3182 break; /* always enabled, nothing to do */
3183 case nct6106:
3184 case nct6116:
3185 case nct6779:
3186 case nct6791:
3187 case nct6792:
3188 case nct6793:
3189 case nct6795:
3190 case nct6796:
3191 case nct6797:
3192 case nct6798:
3193 nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
3194 val);
3195 reg = nct6775_read_value(data,
3196 data->REG_CRITICAL_PWM_ENABLE[nr]);
3197 if (val == 255)
3198 reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
3199 else
3200 reg |= data->CRITICAL_PWM_ENABLE_MASK;
3201 nct6775_write_value(data,
3202 data->REG_CRITICAL_PWM_ENABLE[nr],
3203 reg);
3204 break;
3205 }
3206 }
3207 mutex_unlock(&data->update_lock);
3208 return count;
3209}
3210
3211static ssize_t
3212show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
3213{
3214 struct nct6775_data *data = nct6775_update_device(dev);
3215 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3216 int nr = sattr->nr;
3217 int point = sattr->index;
3218
3219 /*
3220 * We don't know for sure if the temperature is signed or unsigned.
3221 * Assume it is unsigned.
3222 */
3223 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
3224}
3225
3226static ssize_t
3227store_auto_temp(struct device *dev, struct device_attribute *attr,
3228 const char *buf, size_t count)
3229{
3230 struct nct6775_data *data = dev_get_drvdata(dev);
3231 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
3232 int nr = sattr->nr;
3233 int point = sattr->index;
3234 unsigned long val;
3235 int err;
3236
3237 err = kstrtoul(buf, 10, &val);
3238 if (err)
3239 return err;
3240 if (val > 255000)
3241 return -EINVAL;
3242
3243 mutex_lock(&data->update_lock);
3244 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
3245 if (point < data->auto_pwm_num) {
3246 nct6775_write_value(data,
3247 NCT6775_AUTO_TEMP(data, nr, point),
3248 data->auto_temp[nr][point]);
3249 } else {
3250 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
3251 data->auto_temp[nr][point]);
3252 }
3253 mutex_unlock(&data->update_lock);
3254 return count;
3255}
3256
3257static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
3258 struct attribute *attr, int index)
3259{
3260 struct device *dev = kobj_to_dev(kobj);
3261 struct nct6775_data *data = dev_get_drvdata(dev);
3262 int pwm = index / 36; /* pwm index */
3263 int nr = index % 36; /* attribute index */
3264
3265 if (!(data->has_pwm & BIT(pwm)))
3266 return 0;
3267
3268 if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
3269 if (!data->REG_WEIGHT_TEMP_SEL[pwm])
3270 return 0;
3271 if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
3272 return 0;
3273 if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
3274 return 0;
3275 if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */
3276 return 0;
3277
3278 if (nr >= 22 && nr <= 35) { /* auto point */
3279 int api = (nr - 22) / 2; /* auto point index */
3280
3281 if (api > data->auto_pwm_num)
3282 return 0;
3283 }
3284 return attr->mode;
3285}
3286
3287SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", S_IWUSR | S_IRUGO,
3288 show_fan_time, store_fan_time, 0, 0);
3289SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", S_IWUSR | S_IRUGO,
3290 show_fan_time, store_fan_time, 0, 1);
3291SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", S_IWUSR | S_IRUGO,
3292 show_fan_time, store_fan_time, 0, 2);
3293SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", S_IWUSR | S_IRUGO, show_pwm,
3294 store_pwm, 0, 1);
3295SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", S_IWUSR | S_IRUGO, show_pwm,
3296 store_pwm, 0, 2);
3297SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", S_IWUSR | S_IRUGO,
3298 show_temp_tolerance, store_temp_tolerance, 0, 0);
3299SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance",
3300 S_IWUSR | S_IRUGO, show_temp_tolerance, store_temp_tolerance,
3301 0, 1);
3302
3303SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", S_IWUSR | S_IRUGO, show_pwm, store_pwm,
3304 0, 3);
3305
3306SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", S_IWUSR | S_IRUGO, show_pwm,
3307 store_pwm, 0, 4);
3308
3309SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm",
3310 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 0);
3311SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp",
3312 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 0);
3313
3314SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm",
3315 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 1);
3316SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp",
3317 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 1);
3318
3319SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm",
3320 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 2);
3321SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp",
3322 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 2);
3323
3324SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm",
3325 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 3);
3326SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp",
3327 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 3);
3328
3329SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm",
3330 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 4);
3331SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp",
3332 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 4);
3333
3334SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm",
3335 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 5);
3336SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp",
3337 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 5);
3338
3339SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm",
3340 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 6);
3341SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp",
3342 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 6);
3343
3344/*
3345 * nct6775_pwm_is_visible uses the index into the following array
3346 * to determine if attributes should be created or not.
3347 * Any change in order or content must be matched.
3348 */
3349static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
3350 &sensor_dev_template_pwm,
3351 &sensor_dev_template_pwm_mode,
3352 &sensor_dev_template_pwm_enable,
3353 &sensor_dev_template_pwm_temp_sel,
3354 &sensor_dev_template_pwm_temp_tolerance,
3355 &sensor_dev_template_pwm_crit_temp_tolerance,
3356 &sensor_dev_template_pwm_target_temp,
3357 &sensor_dev_template_fan_target,
3358 &sensor_dev_template_fan_tolerance,
3359 &sensor_dev_template_pwm_stop_time,
3360 &sensor_dev_template_pwm_step_up_time,
3361 &sensor_dev_template_pwm_step_down_time,
3362 &sensor_dev_template_pwm_start,
3363 &sensor_dev_template_pwm_floor,
3364 &sensor_dev_template_pwm_weight_temp_sel, /* 14 */
3365 &sensor_dev_template_pwm_weight_temp_step,
3366 &sensor_dev_template_pwm_weight_temp_step_tol,
3367 &sensor_dev_template_pwm_weight_temp_step_base,
3368 &sensor_dev_template_pwm_weight_duty_step, /* 18 */
3369 &sensor_dev_template_pwm_max, /* 19 */
3370 &sensor_dev_template_pwm_step, /* 20 */
3371 &sensor_dev_template_pwm_weight_duty_base, /* 21 */
3372 &sensor_dev_template_pwm_auto_point1_pwm, /* 22 */
3373 &sensor_dev_template_pwm_auto_point1_temp,
3374 &sensor_dev_template_pwm_auto_point2_pwm,
3375 &sensor_dev_template_pwm_auto_point2_temp,
3376 &sensor_dev_template_pwm_auto_point3_pwm,
3377 &sensor_dev_template_pwm_auto_point3_temp,
3378 &sensor_dev_template_pwm_auto_point4_pwm,
3379 &sensor_dev_template_pwm_auto_point4_temp,
3380 &sensor_dev_template_pwm_auto_point5_pwm,
3381 &sensor_dev_template_pwm_auto_point5_temp,
3382 &sensor_dev_template_pwm_auto_point6_pwm,
3383 &sensor_dev_template_pwm_auto_point6_temp,
3384 &sensor_dev_template_pwm_auto_point7_pwm,
3385 &sensor_dev_template_pwm_auto_point7_temp, /* 35 */
3386
3387 NULL
3388};
3389
3390static const struct sensor_template_group nct6775_pwm_template_group = {
3391 .templates = nct6775_attributes_pwm_template,
3392 .is_visible = nct6775_pwm_is_visible,
3393 .base = 1,
3394};
3395
3396static ssize_t
3397cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)
3398{
3399 struct nct6775_data *data = dev_get_drvdata(dev);
3400
3401 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
3402}
3403
3404static DEVICE_ATTR_RO(cpu0_vid);
3405
3406/* Case open detection */
3407
3408static ssize_t
3409clear_caseopen(struct device *dev, struct device_attribute *attr,
3410 const char *buf, size_t count)
3411{
3412 struct nct6775_data *data = dev_get_drvdata(dev);
3413 int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
3414 unsigned long val;
3415 u8 reg;
3416 int ret;
3417
3418 if (kstrtoul(buf, 10, &val) || val != 0)
3419 return -EINVAL;
3420
3421 mutex_lock(&data->update_lock);
3422
3423 /*
3424 * Use CR registers to clear caseopen status.
3425 * The CR registers are the same for all chips, and not all chips
3426 * support clearing the caseopen status through "regular" registers.
3427 */
3428 ret = superio_enter(data->sioreg);
3429 if (ret) {
3430 count = ret;
3431 goto error;
3432 }
3433
3434 superio_select(data->sioreg, NCT6775_LD_ACPI);
3435 reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
3436 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3437 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3438 reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3439 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3440 superio_exit(data->sioreg);
3441
3442 data->valid = false; /* Force cache refresh */
3443error:
3444 mutex_unlock(&data->update_lock);
3445 return count;
3446}
3447
3448static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
3449 clear_caseopen, INTRUSION_ALARM_BASE);
3450static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
3451 clear_caseopen, INTRUSION_ALARM_BASE + 1);
3452static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep,
3453 store_beep, INTRUSION_ALARM_BASE);
3454static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep,
3455 store_beep, INTRUSION_ALARM_BASE + 1);
3456static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep,
3457 store_beep, BEEP_ENABLE_BASE);
3458
3459static umode_t nct6775_other_is_visible(struct kobject *kobj,
3460 struct attribute *attr, int index)
3461{
3462 struct device *dev = kobj_to_dev(kobj);
3463 struct nct6775_data *data = dev_get_drvdata(dev);
3464
3465 if (index == 0 && !data->have_vid)
3466 return 0;
3467
3468 if (index == 1 || index == 2) {
3469 if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
3470 return 0;
3471 }
3472
3473 if (index == 3 || index == 4) {
3474 if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
3475 return 0;
3476 }
3477
3478 return attr->mode;
3479}
3480
3481/*
3482 * nct6775_other_is_visible uses the index into the following array
3483 * to determine if attributes should be created or not.
3484 * Any change in order or content must be matched.
3485 */
3486static struct attribute *nct6775_attributes_other[] = {
3487 &dev_attr_cpu0_vid.attr, /* 0 */
3488 &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
3489 &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
3490 &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
3491 &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
3492 &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
3493
3494 NULL
3495};
3496
3497static const struct attribute_group nct6775_group_other = {
3498 .attrs = nct6775_attributes_other,
3499 .is_visible = nct6775_other_is_visible,
3500};
3501
3502static inline void nct6775_init_device(struct nct6775_data *data)
3503{
3504 int i;
3505 u8 tmp, diode;
3506
3507 /* Start monitoring if needed */
3508 if (data->REG_CONFIG) {
3509 tmp = nct6775_read_value(data, data->REG_CONFIG);
3510 if (!(tmp & 0x01))
3511 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
3512 }
3513
3514 /* Enable temperature sensors if needed */
3515 for (i = 0; i < NUM_TEMP; i++) {
3516 if (!(data->have_temp & BIT(i)))
3517 continue;
3518 if (!data->reg_temp_config[i])
3519 continue;
3520 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
3521 if (tmp & 0x01)
3522 nct6775_write_value(data, data->reg_temp_config[i],
3523 tmp & 0xfe);
3524 }
3525
3526 /* Enable VBAT monitoring if needed */
3527 tmp = nct6775_read_value(data, data->REG_VBAT);
3528 if (!(tmp & 0x01))
3529 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
3530
3531 diode = nct6775_read_value(data, data->REG_DIODE);
3532
3533 for (i = 0; i < data->temp_fixed_num; i++) {
3534 if (!(data->have_temp_fixed & BIT(i)))
3535 continue;
3536 if ((tmp & (data->DIODE_MASK << i))) /* diode */
3537 data->temp_type[i]
3538 = 3 - ((diode >> i) & data->DIODE_MASK);
3539 else /* thermistor */
3540 data->temp_type[i] = 4;
3541 }
3542}
3543
3544static void
3545nct6775_check_fan_inputs(struct nct6775_data *data)
3546{
3547 bool fan3pin = false, fan4pin = false, fan4min = false;
3548 bool fan5pin = false, fan6pin = false, fan7pin = false;
3549 bool pwm3pin = false, pwm4pin = false, pwm5pin = false;
3550 bool pwm6pin = false, pwm7pin = false;
3551 int sioreg = data->sioreg;
3552
3553 /* Store SIO_REG_ENABLE for use during resume */
3554 superio_select(sioreg, NCT6775_LD_HWM);
3555 data->sio_reg_enable = superio_inb(sioreg, SIO_REG_ENABLE);
3556
3557 /* fan4 and fan5 share some pins with the GPIO and serial flash */
3558 if (data->kind == nct6775) {
3559 int cr2c = superio_inb(sioreg, 0x2c);
3560
3561 fan3pin = cr2c & BIT(6);
3562 pwm3pin = cr2c & BIT(7);
3563
3564 /* On NCT6775, fan4 shares pins with the fdc interface */
3565 fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
3566 } else if (data->kind == nct6776) {
3567 bool gpok = superio_inb(sioreg, 0x27) & 0x80;
3568 const char *board_vendor, *board_name;
3569
3570 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
3571 board_name = dmi_get_system_info(DMI_BOARD_NAME);
3572
3573 if (board_name && board_vendor &&
3574 !strcmp(board_vendor, "ASRock")) {
3575 /*
3576 * Auxiliary fan monitoring is not enabled on ASRock
3577 * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
3578 * Observed with BIOS version 2.00.
3579 */
3580 if (!strcmp(board_name, "Z77 Pro4-M")) {
3581 if ((data->sio_reg_enable & 0xe0) != 0xe0) {
3582 data->sio_reg_enable |= 0xe0;
3583 superio_outb(sioreg, SIO_REG_ENABLE,
3584 data->sio_reg_enable);
3585 }
3586 }
3587 }
3588
3589 if (data->sio_reg_enable & 0x80)
3590 fan3pin = gpok;
3591 else
3592 fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
3593
3594 if (data->sio_reg_enable & 0x40)
3595 fan4pin = gpok;
3596 else
3597 fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
3598
3599 if (data->sio_reg_enable & 0x20)
3600 fan5pin = gpok;
3601 else
3602 fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
3603
3604 fan4min = fan4pin;
3605 pwm3pin = fan3pin;
3606 } else if (data->kind == nct6106) {
3607 int cr24 = superio_inb(sioreg, 0x24);
3608
3609 fan3pin = !(cr24 & 0x80);
3610 pwm3pin = cr24 & 0x08;
3611 } else if (data->kind == nct6116) {
3612 int cr1a = superio_inb(sioreg, 0x1a);
3613 int cr1b = superio_inb(sioreg, 0x1b);
3614 int cr24 = superio_inb(sioreg, 0x24);
3615 int cr2a = superio_inb(sioreg, 0x2a);
3616 int cr2b = superio_inb(sioreg, 0x2b);
3617 int cr2f = superio_inb(sioreg, 0x2f);
3618
3619 fan3pin = !(cr2b & 0x10);
3620 fan4pin = (cr2b & 0x80) || // pin 1(2)
3621 (!(cr2f & 0x10) && (cr1a & 0x04)); // pin 65(66)
3622 fan5pin = (cr2b & 0x80) || // pin 126(127)
3623 (!(cr1b & 0x03) && (cr2a & 0x02)); // pin 94(96)
3624
3625 pwm3pin = fan3pin && (cr24 & 0x08);
3626 pwm4pin = fan4pin;
3627 pwm5pin = fan5pin;
3628 } else {
3629 /*
3630 * NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D,
3631 * NCT6797D, NCT6798D
3632 */
3633 int cr1a = superio_inb(sioreg, 0x1a);
3634 int cr1b = superio_inb(sioreg, 0x1b);
3635 int cr1c = superio_inb(sioreg, 0x1c);
3636 int cr1d = superio_inb(sioreg, 0x1d);
3637 int cr2a = superio_inb(sioreg, 0x2a);
3638 int cr2b = superio_inb(sioreg, 0x2b);
3639 int cr2d = superio_inb(sioreg, 0x2d);
3640 int cr2f = superio_inb(sioreg, 0x2f);
3641 bool dsw_en = cr2f & BIT(3);
3642 bool ddr4_en = cr2f & BIT(4);
3643 int cre0;
3644 int creb;
3645 int cred;
3646
3647 superio_select(sioreg, NCT6775_LD_12);
3648 cre0 = superio_inb(sioreg, 0xe0);
3649 creb = superio_inb(sioreg, 0xeb);
3650 cred = superio_inb(sioreg, 0xed);
3651
3652 fan3pin = !(cr1c & BIT(5));
3653 fan4pin = !(cr1c & BIT(6));
3654 fan5pin = !(cr1c & BIT(7));
3655
3656 pwm3pin = !(cr1c & BIT(0));
3657 pwm4pin = !(cr1c & BIT(1));
3658 pwm5pin = !(cr1c & BIT(2));
3659
3660 switch (data->kind) {
3661 case nct6791:
3662 fan6pin = cr2d & BIT(1);
3663 pwm6pin = cr2d & BIT(0);
3664 break;
3665 case nct6792:
3666 fan6pin = !dsw_en && (cr2d & BIT(1));
3667 pwm6pin = !dsw_en && (cr2d & BIT(0));
3668 break;
3669 case nct6793:
3670 fan5pin |= cr1b & BIT(5);
3671 fan5pin |= creb & BIT(5);
3672
3673 fan6pin = !dsw_en && (cr2d & BIT(1));
3674 fan6pin |= creb & BIT(3);
3675
3676 pwm5pin |= cr2d & BIT(7);
3677 pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
3678
3679 pwm6pin = !dsw_en && (cr2d & BIT(0));
3680 pwm6pin |= creb & BIT(2);
3681 break;
3682 case nct6795:
3683 fan5pin |= cr1b & BIT(5);
3684 fan5pin |= creb & BIT(5);
3685
3686 fan6pin = (cr2a & BIT(4)) &&
3687 (!dsw_en || (cred & BIT(4)));
3688 fan6pin |= creb & BIT(3);
3689
3690 pwm5pin |= cr2d & BIT(7);
3691 pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
3692
3693 pwm6pin = (cr2a & BIT(3)) && (cred & BIT(2));
3694 pwm6pin |= creb & BIT(2);
3695 break;
3696 case nct6796:
3697 fan5pin |= cr1b & BIT(5);
3698 fan5pin |= (cre0 & BIT(3)) && !(cr1b & BIT(0));
3699 fan5pin |= creb & BIT(5);
3700
3701 fan6pin = (cr2a & BIT(4)) &&
3702 (!dsw_en || (cred & BIT(4)));
3703 fan6pin |= creb & BIT(3);
3704
3705 fan7pin = !(cr2b & BIT(2));
3706
3707 pwm5pin |= cr2d & BIT(7);
3708 pwm5pin |= (cre0 & BIT(4)) && !(cr1b & BIT(0));
3709 pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
3710
3711 pwm6pin = (cr2a & BIT(3)) && (cred & BIT(2));
3712 pwm6pin |= creb & BIT(2);
3713
3714 pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
3715 break;
3716 case nct6797:
3717 fan5pin |= !ddr4_en && (cr1b & BIT(5));
3718 fan5pin |= creb & BIT(5);
3719
3720 fan6pin = cr2a & BIT(4);
3721 fan6pin |= creb & BIT(3);
3722
3723 fan7pin = cr1a & BIT(1);
3724
3725 pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
3726 pwm5pin |= !ddr4_en && (cr2d & BIT(7));
3727
3728 pwm6pin = creb & BIT(2);
3729 pwm6pin |= cred & BIT(2);
3730
3731 pwm7pin = cr1d & BIT(4);
3732 break;
3733 case nct6798:
3734 fan6pin = !(cr1b & BIT(0)) && (cre0 & BIT(3));
3735 fan6pin |= cr2a & BIT(4);
3736 fan6pin |= creb & BIT(5);
3737
3738 fan7pin = cr1b & BIT(5);
3739 fan7pin |= !(cr2b & BIT(2));
3740 fan7pin |= creb & BIT(3);
3741
3742 pwm6pin = !(cr1b & BIT(0)) && (cre0 & BIT(4));
3743 pwm6pin |= !(cred & BIT(2)) && (cr2a & BIT(3));
3744 pwm6pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
3745
3746 pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
3747 pwm7pin |= cr2d & BIT(7);
3748 pwm7pin |= creb & BIT(2);
3749 break;
3750 default: /* NCT6779D */
3751 break;
3752 }
3753
3754 fan4min = fan4pin;
3755 }
3756
3757 /* fan 1 and 2 (0x03) are always present */
3758 data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
3759 (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
3760 data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
3761 (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
3762 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
3763 (pwm5pin << 4) | (pwm6pin << 5) | (pwm7pin << 6);
3764}
3765
3766static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
3767 int *available, int *mask)
3768{
3769 int i;
3770 u8 src;
3771
3772 for (i = 0; i < data->pwm_num && *available; i++) {
3773 int index;
3774
3775 if (!regp[i])
3776 continue;
3777 src = nct6775_read_value(data, regp[i]);
3778 src &= 0x1f;
3779 if (!src || (*mask & BIT(src)))
3780 continue;
3781 if (!(data->temp_mask & BIT(src)))
3782 continue;
3783
3784 index = __ffs(*available);
3785 nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
3786 *available &= ~BIT(index);
3787 *mask |= BIT(src);
3788 }
3789}
3790
3791static int nct6775_probe(struct platform_device *pdev)
3792{
3793 struct device *dev = &pdev->dev;
3794 struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
3795 struct nct6775_data *data;
3796 struct resource *res;
3797 int i, s, err = 0;
3798 int src, mask, available;
3799 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
3800 const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
3801 const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
3802 int num_reg_temp, num_reg_temp_mon;
3803 u8 cr2a;
3804 struct attribute_group *group;
3805 struct device *hwmon_dev;
3806 int num_attr_groups = 0;
3807
3808 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
3809 if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
3810 DRVNAME))
3811 return -EBUSY;
3812
3813 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3814 GFP_KERNEL);
3815 if (!data)
3816 return -ENOMEM;
3817
3818 data->kind = sio_data->kind;
3819 data->sioreg = sio_data->sioreg;
3820 data->addr = res->start;
3821 mutex_init(&data->update_lock);
3822 data->name = nct6775_device_names[data->kind];
3823 data->bank = 0xff; /* Force initial bank selection */
3824 platform_set_drvdata(pdev, data);
3825
3826 switch (data->kind) {
3827 case nct6106:
3828 data->in_num = 9;
3829 data->pwm_num = 3;
3830 data->auto_pwm_num = 4;
3831 data->temp_fixed_num = 3;
3832 data->num_temp_alarms = 6;
3833 data->num_temp_beeps = 6;
3834
3835 data->fan_from_reg = fan_from_reg13;
3836 data->fan_from_reg_min = fan_from_reg13;
3837
3838 data->temp_label = nct6776_temp_label;
3839 data->temp_mask = NCT6776_TEMP_MASK;
3840 data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
3841
3842 data->REG_VBAT = NCT6106_REG_VBAT;
3843 data->REG_DIODE = NCT6106_REG_DIODE;
3844 data->DIODE_MASK = NCT6106_DIODE_MASK;
3845 data->REG_VIN = NCT6106_REG_IN;
3846 data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
3847 data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
3848 data->REG_TARGET = NCT6106_REG_TARGET;
3849 data->REG_FAN = NCT6106_REG_FAN;
3850 data->REG_FAN_MODE = NCT6106_REG_FAN_MODE;
3851 data->REG_FAN_MIN = NCT6106_REG_FAN_MIN;
3852 data->REG_FAN_PULSES = NCT6106_REG_FAN_PULSES;
3853 data->FAN_PULSE_SHIFT = NCT6106_FAN_PULSE_SHIFT;
3854 data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME;
3855 data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME;
3856 data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME;
3857 data->REG_TOLERANCE_H = NCT6106_REG_TOLERANCE_H;
3858 data->REG_PWM[0] = NCT6116_REG_PWM;
3859 data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT;
3860 data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT;
3861 data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
3862 data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
3863 data->REG_PWM_READ = NCT6106_REG_PWM_READ;
3864 data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
3865 data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
3866 data->REG_AUTO_TEMP = NCT6106_REG_AUTO_TEMP;
3867 data->REG_AUTO_PWM = NCT6106_REG_AUTO_PWM;
3868 data->REG_CRITICAL_TEMP = NCT6106_REG_CRITICAL_TEMP;
3869 data->REG_CRITICAL_TEMP_TOLERANCE
3870 = NCT6106_REG_CRITICAL_TEMP_TOLERANCE;
3871 data->REG_CRITICAL_PWM_ENABLE = NCT6106_REG_CRITICAL_PWM_ENABLE;
3872 data->CRITICAL_PWM_ENABLE_MASK
3873 = NCT6106_CRITICAL_PWM_ENABLE_MASK;
3874 data->REG_CRITICAL_PWM = NCT6106_REG_CRITICAL_PWM;
3875 data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
3876 data->REG_TEMP_SOURCE = NCT6106_REG_TEMP_SOURCE;
3877 data->REG_TEMP_SEL = NCT6116_REG_TEMP_SEL;
3878 data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
3879 data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
3880 data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
3881 data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
3882 data->REG_ALARM = NCT6106_REG_ALARM;
3883 data->ALARM_BITS = NCT6106_ALARM_BITS;
3884 data->REG_BEEP = NCT6106_REG_BEEP;
3885 data->BEEP_BITS = NCT6106_BEEP_BITS;
3886
3887 reg_temp = NCT6106_REG_TEMP;
3888 reg_temp_mon = NCT6106_REG_TEMP_MON;
3889 num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
3890 num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
3891 reg_temp_over = NCT6106_REG_TEMP_OVER;
3892 reg_temp_hyst = NCT6106_REG_TEMP_HYST;
3893 reg_temp_config = NCT6106_REG_TEMP_CONFIG;
3894 reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
3895 reg_temp_crit = NCT6106_REG_TEMP_CRIT;
3896 reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
3897 reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
3898
3899 break;
3900 case nct6116:
3901 data->in_num = 9;
3902 data->pwm_num = 3;
3903 data->auto_pwm_num = 4;
3904 data->temp_fixed_num = 3;
3905 data->num_temp_alarms = 3;
3906 data->num_temp_beeps = 3;
3907
3908 data->fan_from_reg = fan_from_reg13;
3909 data->fan_from_reg_min = fan_from_reg13;
3910
3911 data->temp_label = nct6776_temp_label;
3912 data->temp_mask = NCT6776_TEMP_MASK;
3913 data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
3914
3915 data->REG_VBAT = NCT6106_REG_VBAT;
3916 data->REG_DIODE = NCT6106_REG_DIODE;
3917 data->DIODE_MASK = NCT6106_DIODE_MASK;
3918 data->REG_VIN = NCT6106_REG_IN;
3919 data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
3920 data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
3921 data->REG_TARGET = NCT6116_REG_TARGET;
3922 data->REG_FAN = NCT6116_REG_FAN;
3923 data->REG_FAN_MODE = NCT6116_REG_FAN_MODE;
3924 data->REG_FAN_MIN = NCT6116_REG_FAN_MIN;
3925 data->REG_FAN_PULSES = NCT6116_REG_FAN_PULSES;
3926 data->FAN_PULSE_SHIFT = NCT6116_FAN_PULSE_SHIFT;
3927 data->REG_FAN_TIME[0] = NCT6116_REG_FAN_STOP_TIME;
3928 data->REG_FAN_TIME[1] = NCT6116_REG_FAN_STEP_UP_TIME;
3929 data->REG_FAN_TIME[2] = NCT6116_REG_FAN_STEP_DOWN_TIME;
3930 data->REG_TOLERANCE_H = NCT6116_REG_TOLERANCE_H;
3931 data->REG_PWM[0] = NCT6116_REG_PWM;
3932 data->REG_PWM[1] = NCT6116_REG_FAN_START_OUTPUT;
3933 data->REG_PWM[2] = NCT6116_REG_FAN_STOP_OUTPUT;
3934 data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
3935 data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
3936 data->REG_PWM_READ = NCT6106_REG_PWM_READ;
3937 data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
3938 data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
3939 data->REG_AUTO_TEMP = NCT6116_REG_AUTO_TEMP;
3940 data->REG_AUTO_PWM = NCT6116_REG_AUTO_PWM;
3941 data->REG_CRITICAL_TEMP = NCT6116_REG_CRITICAL_TEMP;
3942 data->REG_CRITICAL_TEMP_TOLERANCE
3943 = NCT6116_REG_CRITICAL_TEMP_TOLERANCE;
3944 data->REG_CRITICAL_PWM_ENABLE = NCT6116_REG_CRITICAL_PWM_ENABLE;
3945 data->CRITICAL_PWM_ENABLE_MASK
3946 = NCT6106_CRITICAL_PWM_ENABLE_MASK;
3947 data->REG_CRITICAL_PWM = NCT6116_REG_CRITICAL_PWM;
3948 data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
3949 data->REG_TEMP_SOURCE = NCT6116_REG_TEMP_SOURCE;
3950 data->REG_TEMP_SEL = NCT6116_REG_TEMP_SEL;
3951 data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
3952 data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
3953 data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
3954 data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
3955 data->REG_ALARM = NCT6106_REG_ALARM;
3956 data->ALARM_BITS = NCT6116_ALARM_BITS;
3957 data->REG_BEEP = NCT6106_REG_BEEP;
3958 data->BEEP_BITS = NCT6116_BEEP_BITS;
3959
3960 reg_temp = NCT6106_REG_TEMP;
3961 reg_temp_mon = NCT6106_REG_TEMP_MON;
3962 num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
3963 num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
3964 reg_temp_over = NCT6106_REG_TEMP_OVER;
3965 reg_temp_hyst = NCT6106_REG_TEMP_HYST;
3966 reg_temp_config = NCT6106_REG_TEMP_CONFIG;
3967 reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
3968 reg_temp_crit = NCT6106_REG_TEMP_CRIT;
3969 reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
3970 reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
3971
3972 break;
3973 case nct6775:
3974 data->in_num = 9;
3975 data->pwm_num = 3;
3976 data->auto_pwm_num = 6;
3977 data->has_fan_div = true;
3978 data->temp_fixed_num = 3;
3979 data->num_temp_alarms = 3;
3980 data->num_temp_beeps = 3;
3981
3982 data->ALARM_BITS = NCT6775_ALARM_BITS;
3983 data->BEEP_BITS = NCT6775_BEEP_BITS;
3984
3985 data->fan_from_reg = fan_from_reg16;
3986 data->fan_from_reg_min = fan_from_reg8;
3987 data->target_temp_mask = 0x7f;
3988 data->tolerance_mask = 0x0f;
3989 data->speed_tolerance_limit = 15;
3990
3991 data->temp_label = nct6775_temp_label;
3992 data->temp_mask = NCT6775_TEMP_MASK;
3993 data->virt_temp_mask = NCT6775_VIRT_TEMP_MASK;
3994
3995 data->REG_CONFIG = NCT6775_REG_CONFIG;
3996 data->REG_VBAT = NCT6775_REG_VBAT;
3997 data->REG_DIODE = NCT6775_REG_DIODE;
3998 data->DIODE_MASK = NCT6775_DIODE_MASK;
3999 data->REG_VIN = NCT6775_REG_IN;
4000 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
4001 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
4002 data->REG_TARGET = NCT6775_REG_TARGET;
4003 data->REG_FAN = NCT6775_REG_FAN;
4004 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
4005 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
4006 data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES;
4007 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
4008 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
4009 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
4010 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
4011 data->REG_PWM[0] = NCT6775_REG_PWM;
4012 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
4013 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
4014 data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
4015 data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
4016 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
4017 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
4018 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
4019 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
4020 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
4021 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
4022 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
4023 data->REG_CRITICAL_TEMP_TOLERANCE
4024 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
4025 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
4026 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
4027 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
4028 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
4029 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
4030 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
4031 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
4032 data->REG_ALARM = NCT6775_REG_ALARM;
4033 data->REG_BEEP = NCT6775_REG_BEEP;
4034
4035 reg_temp = NCT6775_REG_TEMP;
4036 reg_temp_mon = NCT6775_REG_TEMP_MON;
4037 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
4038 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
4039 reg_temp_over = NCT6775_REG_TEMP_OVER;
4040 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
4041 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
4042 reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE;
4043 reg_temp_crit = NCT6775_REG_TEMP_CRIT;
4044
4045 break;
4046 case nct6776:
4047 data->in_num = 9;
4048 data->pwm_num = 3;
4049 data->auto_pwm_num = 4;
4050 data->has_fan_div = false;
4051 data->temp_fixed_num = 3;
4052 data->num_temp_alarms = 3;
4053 data->num_temp_beeps = 6;
4054
4055 data->ALARM_BITS = NCT6776_ALARM_BITS;
4056 data->BEEP_BITS = NCT6776_BEEP_BITS;
4057
4058 data->fan_from_reg = fan_from_reg13;
4059 data->fan_from_reg_min = fan_from_reg13;
4060 data->target_temp_mask = 0xff;
4061 data->tolerance_mask = 0x07;
4062 data->speed_tolerance_limit = 63;
4063
4064 data->temp_label = nct6776_temp_label;
4065 data->temp_mask = NCT6776_TEMP_MASK;
4066 data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
4067
4068 data->REG_CONFIG = NCT6775_REG_CONFIG;
4069 data->REG_VBAT = NCT6775_REG_VBAT;
4070 data->REG_DIODE = NCT6775_REG_DIODE;
4071 data->DIODE_MASK = NCT6775_DIODE_MASK;
4072 data->REG_VIN = NCT6775_REG_IN;
4073 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
4074 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
4075 data->REG_TARGET = NCT6775_REG_TARGET;
4076 data->REG_FAN = NCT6775_REG_FAN;
4077 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
4078 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
4079 data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
4080 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
4081 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
4082 data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
4083 data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
4084 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
4085 data->REG_PWM[0] = NCT6775_REG_PWM;
4086 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
4087 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
4088 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
4089 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
4090 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
4091 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
4092 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
4093 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
4094 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
4095 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
4096 data->REG_CRITICAL_TEMP_TOLERANCE
4097 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
4098 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
4099 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
4100 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
4101 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
4102 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
4103 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
4104 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
4105 data->REG_ALARM = NCT6775_REG_ALARM;
4106 data->REG_BEEP = NCT6776_REG_BEEP;
4107
4108 reg_temp = NCT6775_REG_TEMP;
4109 reg_temp_mon = NCT6775_REG_TEMP_MON;
4110 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
4111 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
4112 reg_temp_over = NCT6775_REG_TEMP_OVER;
4113 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
4114 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
4115 reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE;
4116 reg_temp_crit = NCT6776_REG_TEMP_CRIT;
4117
4118 break;
4119 case nct6779:
4120 data->in_num = 15;
4121 data->pwm_num = 5;
4122 data->auto_pwm_num = 4;
4123 data->has_fan_div = false;
4124 data->temp_fixed_num = 6;
4125 data->num_temp_alarms = 2;
4126 data->num_temp_beeps = 2;
4127
4128 data->ALARM_BITS = NCT6779_ALARM_BITS;
4129 data->BEEP_BITS = NCT6779_BEEP_BITS;
4130
4131 data->fan_from_reg = fan_from_reg_rpm;
4132 data->fan_from_reg_min = fan_from_reg13;
4133 data->target_temp_mask = 0xff;
4134 data->tolerance_mask = 0x07;
4135 data->speed_tolerance_limit = 63;
4136
4137 data->temp_label = nct6779_temp_label;
4138 data->temp_mask = NCT6779_TEMP_MASK;
4139 data->virt_temp_mask = NCT6779_VIRT_TEMP_MASK;
4140
4141 data->REG_CONFIG = NCT6775_REG_CONFIG;
4142 data->REG_VBAT = NCT6775_REG_VBAT;
4143 data->REG_DIODE = NCT6775_REG_DIODE;
4144 data->DIODE_MASK = NCT6775_DIODE_MASK;
4145 data->REG_VIN = NCT6779_REG_IN;
4146 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
4147 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
4148 data->REG_TARGET = NCT6775_REG_TARGET;
4149 data->REG_FAN = NCT6779_REG_FAN;
4150 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
4151 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
4152 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
4153 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
4154 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
4155 data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
4156 data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
4157 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
4158 data->REG_PWM[0] = NCT6775_REG_PWM;
4159 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
4160 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
4161 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
4162 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
4163 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
4164 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
4165 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
4166 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
4167 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
4168 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
4169 data->REG_CRITICAL_TEMP_TOLERANCE
4170 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
4171 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
4172 data->CRITICAL_PWM_ENABLE_MASK
4173 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
4174 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
4175 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
4176 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
4177 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
4178 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
4179 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
4180 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
4181 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
4182 data->REG_ALARM = NCT6779_REG_ALARM;
4183 data->REG_BEEP = NCT6776_REG_BEEP;
4184
4185 reg_temp = NCT6779_REG_TEMP;
4186 reg_temp_mon = NCT6779_REG_TEMP_MON;
4187 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
4188 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
4189 reg_temp_over = NCT6779_REG_TEMP_OVER;
4190 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
4191 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
4192 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
4193 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
4194
4195 break;
4196 case nct6791:
4197 case nct6792:
4198 case nct6793:
4199 case nct6795:
4200 case nct6796:
4201 case nct6797:
4202 case nct6798:
4203 data->in_num = 15;
4204 data->pwm_num = (data->kind == nct6796 ||
4205 data->kind == nct6797 ||
4206 data->kind == nct6798) ? 7 : 6;
4207 data->auto_pwm_num = 4;
4208 data->has_fan_div = false;
4209 data->temp_fixed_num = 6;
4210 data->num_temp_alarms = 2;
4211 data->num_temp_beeps = 2;
4212
4213 data->ALARM_BITS = NCT6791_ALARM_BITS;
4214 data->BEEP_BITS = NCT6779_BEEP_BITS;
4215
4216 data->fan_from_reg = fan_from_reg_rpm;
4217 data->fan_from_reg_min = fan_from_reg13;
4218 data->target_temp_mask = 0xff;
4219 data->tolerance_mask = 0x07;
4220 data->speed_tolerance_limit = 63;
4221
4222 switch (data->kind) {
4223 default:
4224 case nct6791:
4225 data->temp_label = nct6779_temp_label;
4226 data->temp_mask = NCT6791_TEMP_MASK;
4227 data->virt_temp_mask = NCT6791_VIRT_TEMP_MASK;
4228 break;
4229 case nct6792:
4230 data->temp_label = nct6792_temp_label;
4231 data->temp_mask = NCT6792_TEMP_MASK;
4232 data->virt_temp_mask = NCT6792_VIRT_TEMP_MASK;
4233 break;
4234 case nct6793:
4235 data->temp_label = nct6793_temp_label;
4236 data->temp_mask = NCT6793_TEMP_MASK;
4237 data->virt_temp_mask = NCT6793_VIRT_TEMP_MASK;
4238 break;
4239 case nct6795:
4240 case nct6797:
4241 data->temp_label = nct6795_temp_label;
4242 data->temp_mask = NCT6795_TEMP_MASK;
4243 data->virt_temp_mask = NCT6795_VIRT_TEMP_MASK;
4244 break;
4245 case nct6796:
4246 data->temp_label = nct6796_temp_label;
4247 data->temp_mask = NCT6796_TEMP_MASK;
4248 data->virt_temp_mask = NCT6796_VIRT_TEMP_MASK;
4249 break;
4250 case nct6798:
4251 data->temp_label = nct6798_temp_label;
4252 data->temp_mask = NCT6798_TEMP_MASK;
4253 data->virt_temp_mask = NCT6798_VIRT_TEMP_MASK;
4254 break;
4255 }
4256
4257 data->REG_CONFIG = NCT6775_REG_CONFIG;
4258 data->REG_VBAT = NCT6775_REG_VBAT;
4259 data->REG_DIODE = NCT6775_REG_DIODE;
4260 data->DIODE_MASK = NCT6775_DIODE_MASK;
4261 data->REG_VIN = NCT6779_REG_IN;
4262 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
4263 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
4264 data->REG_TARGET = NCT6775_REG_TARGET;
4265 data->REG_FAN = NCT6779_REG_FAN;
4266 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
4267 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
4268 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
4269 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
4270 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
4271 data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
4272 data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
4273 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
4274 data->REG_PWM[0] = NCT6775_REG_PWM;
4275 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
4276 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
4277 data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP;
4278 data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE;
4279 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
4280 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
4281 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
4282 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
4283 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
4284 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
4285 data->REG_CRITICAL_TEMP_TOLERANCE
4286 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
4287 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
4288 data->CRITICAL_PWM_ENABLE_MASK
4289 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
4290 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
4291 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
4292 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
4293 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
4294 data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL;
4295 data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP;
4296 data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL;
4297 data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE;
4298 data->REG_ALARM = NCT6791_REG_ALARM;
4299 if (data->kind == nct6791)
4300 data->REG_BEEP = NCT6776_REG_BEEP;
4301 else
4302 data->REG_BEEP = NCT6792_REG_BEEP;
4303
4304 reg_temp = NCT6779_REG_TEMP;
4305 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
4306 if (data->kind == nct6791) {
4307 reg_temp_mon = NCT6779_REG_TEMP_MON;
4308 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
4309 } else {
4310 reg_temp_mon = NCT6792_REG_TEMP_MON;
4311 num_reg_temp_mon = ARRAY_SIZE(NCT6792_REG_TEMP_MON);
4312 }
4313 reg_temp_over = NCT6779_REG_TEMP_OVER;
4314 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
4315 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
4316 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
4317 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
4318
4319 break;
4320 default:
4321 return -ENODEV;
4322 }
4323 data->have_in = BIT(data->in_num) - 1;
4324 data->have_temp = 0;
4325
4326 /*
4327 * On some boards, not all available temperature sources are monitored,
4328 * even though some of the monitoring registers are unused.
4329 * Get list of unused monitoring registers, then detect if any fan
4330 * controls are configured to use unmonitored temperature sources.
4331 * If so, assign the unmonitored temperature sources to available
4332 * monitoring registers.
4333 */
4334 mask = 0;
4335 available = 0;
4336 for (i = 0; i < num_reg_temp; i++) {
4337 if (reg_temp[i] == 0)
4338 continue;
4339
4340 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
4341 if (!src || (mask & BIT(src)))
4342 available |= BIT(i);
4343
4344 mask |= BIT(src);
4345 }
4346
4347 /*
4348 * Now find unmonitored temperature registers and enable monitoring
4349 * if additional monitoring registers are available.
4350 */
4351 add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask);
4352 add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask);
4353
4354 mask = 0;
4355 s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
4356 for (i = 0; i < num_reg_temp; i++) {
4357 if (reg_temp[i] == 0)
4358 continue;
4359
4360 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
4361 if (!src || (mask & BIT(src)))
4362 continue;
4363
4364 if (!(data->temp_mask & BIT(src))) {
4365 dev_info(dev,
4366 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
4367 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
4368 continue;
4369 }
4370
4371 mask |= BIT(src);
4372
4373 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
4374 if (src <= data->temp_fixed_num) {
4375 data->have_temp |= BIT(src - 1);
4376 data->have_temp_fixed |= BIT(src - 1);
4377 data->reg_temp[0][src - 1] = reg_temp[i];
4378 data->reg_temp[1][src - 1] = reg_temp_over[i];
4379 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
4380 if (reg_temp_crit_h && reg_temp_crit_h[i])
4381 data->reg_temp[3][src - 1] = reg_temp_crit_h[i];
4382 else if (reg_temp_crit[src - 1])
4383 data->reg_temp[3][src - 1]
4384 = reg_temp_crit[src - 1];
4385 if (reg_temp_crit_l && reg_temp_crit_l[i])
4386 data->reg_temp[4][src - 1] = reg_temp_crit_l[i];
4387 data->reg_temp_config[src - 1] = reg_temp_config[i];
4388 data->temp_src[src - 1] = src;
4389 continue;
4390 }
4391
4392 if (s >= NUM_TEMP)
4393 continue;
4394
4395 /* Use dynamic index for other sources */
4396 data->have_temp |= BIT(s);
4397 data->reg_temp[0][s] = reg_temp[i];
4398 data->reg_temp[1][s] = reg_temp_over[i];
4399 data->reg_temp[2][s] = reg_temp_hyst[i];
4400 data->reg_temp_config[s] = reg_temp_config[i];
4401 if (reg_temp_crit_h && reg_temp_crit_h[i])
4402 data->reg_temp[3][s] = reg_temp_crit_h[i];
4403 else if (reg_temp_crit[src - 1])
4404 data->reg_temp[3][s] = reg_temp_crit[src - 1];
4405 if (reg_temp_crit_l && reg_temp_crit_l[i])
4406 data->reg_temp[4][s] = reg_temp_crit_l[i];
4407
4408 data->temp_src[s] = src;
4409 s++;
4410 }
4411
4412 /*
4413 * Repeat with temperatures used for fan control.
4414 * This set of registers does not support limits.
4415 */
4416 for (i = 0; i < num_reg_temp_mon; i++) {
4417 if (reg_temp_mon[i] == 0)
4418 continue;
4419
4420 src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
4421 if (!src)
4422 continue;
4423
4424 if (!(data->temp_mask & BIT(src))) {
4425 dev_info(dev,
4426 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
4427 src, i, data->REG_TEMP_SEL[i],
4428 reg_temp_mon[i]);
4429 continue;
4430 }
4431
4432 /*
4433 * For virtual temperature sources, the 'virtual' temperature
4434 * for each fan reflects a different temperature, and there
4435 * are no duplicates.
4436 */
4437 if (!(data->virt_temp_mask & BIT(src))) {
4438 if (mask & BIT(src))
4439 continue;
4440 mask |= BIT(src);
4441 }
4442
4443 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
4444 if (src <= data->temp_fixed_num) {
4445 if (data->have_temp & BIT(src - 1))
4446 continue;
4447 data->have_temp |= BIT(src - 1);
4448 data->have_temp_fixed |= BIT(src - 1);
4449 data->reg_temp[0][src - 1] = reg_temp_mon[i];
4450 data->temp_src[src - 1] = src;
4451 continue;
4452 }
4453
4454 if (s >= NUM_TEMP)
4455 continue;
4456
4457 /* Use dynamic index for other sources */
4458 data->have_temp |= BIT(s);
4459 data->reg_temp[0][s] = reg_temp_mon[i];
4460 data->temp_src[s] = src;
4461 s++;
4462 }
4463
4464#ifdef USE_ALTERNATE
4465 /*
4466 * Go through the list of alternate temp registers and enable
4467 * if possible.
4468 * The temperature is already monitored if the respective bit in <mask>
4469 * is set.
4470 */
4471 for (i = 0; i < 31; i++) {
4472 if (!(data->temp_mask & BIT(i + 1)))
4473 continue;
4474 if (!reg_temp_alternate[i])
4475 continue;
4476 if (mask & BIT(i + 1))
4477 continue;
4478 if (i < data->temp_fixed_num) {
4479 if (data->have_temp & BIT(i))
4480 continue;
4481 data->have_temp |= BIT(i);
4482 data->have_temp_fixed |= BIT(i);
4483 data->reg_temp[0][i] = reg_temp_alternate[i];
4484 if (i < num_reg_temp) {
4485 data->reg_temp[1][i] = reg_temp_over[i];
4486 data->reg_temp[2][i] = reg_temp_hyst[i];
4487 }
4488 data->temp_src[i] = i + 1;
4489 continue;
4490 }
4491
4492 if (s >= NUM_TEMP) /* Abort if no more space */
4493 break;
4494
4495 data->have_temp |= BIT(s);
4496 data->reg_temp[0][s] = reg_temp_alternate[i];
4497 data->temp_src[s] = i + 1;
4498 s++;
4499 }
4500#endif /* USE_ALTERNATE */
4501
4502 /* Initialize the chip */
4503 nct6775_init_device(data);
4504
4505 err = superio_enter(sio_data->sioreg);
4506 if (err)
4507 return err;
4508
4509 cr2a = superio_inb(sio_data->sioreg, 0x2a);
4510 switch (data->kind) {
4511 case nct6775:
4512 data->have_vid = (cr2a & 0x40);
4513 break;
4514 case nct6776:
4515 data->have_vid = (cr2a & 0x60) == 0x40;
4516 break;
4517 case nct6106:
4518 case nct6116:
4519 case nct6779:
4520 case nct6791:
4521 case nct6792:
4522 case nct6793:
4523 case nct6795:
4524 case nct6796:
4525 case nct6797:
4526 case nct6798:
4527 break;
4528 }
4529
4530 /*
4531 * Read VID value
4532 * We can get the VID input values directly at logical device D 0xe3.
4533 */
4534 if (data->have_vid) {
4535 superio_select(sio_data->sioreg, NCT6775_LD_VID);
4536 data->vid = superio_inb(sio_data->sioreg, 0xe3);
4537 data->vrm = vid_which_vrm();
4538 }
4539
4540 if (fan_debounce) {
4541 u8 tmp;
4542
4543 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
4544 tmp = superio_inb(sio_data->sioreg,
4545 NCT6775_REG_CR_FAN_DEBOUNCE);
4546 switch (data->kind) {
4547 case nct6106:
4548 case nct6116:
4549 tmp |= 0xe0;
4550 break;
4551 case nct6775:
4552 tmp |= 0x1e;
4553 break;
4554 case nct6776:
4555 case nct6779:
4556 tmp |= 0x3e;
4557 break;
4558 case nct6791:
4559 case nct6792:
4560 case nct6793:
4561 case nct6795:
4562 case nct6796:
4563 case nct6797:
4564 case nct6798:
4565 tmp |= 0x7e;
4566 break;
4567 }
4568 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
4569 tmp);
4570 dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
4571 data->name);
4572 }
4573
4574 nct6775_check_fan_inputs(data);
4575
4576 superio_exit(sio_data->sioreg);
4577
4578 /* Read fan clock dividers immediately */
4579 nct6775_init_fan_common(dev, data);
4580
4581 /* Register sysfs hooks */
4582 group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group,
4583 data->pwm_num);
4584 if (IS_ERR(group))
4585 return PTR_ERR(group);
4586
4587 data->groups[num_attr_groups++] = group;
4588
4589 group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
4590 fls(data->have_in));
4591 if (IS_ERR(group))
4592 return PTR_ERR(group);
4593
4594 data->groups[num_attr_groups++] = group;
4595
4596 group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
4597 fls(data->has_fan));
4598 if (IS_ERR(group))
4599 return PTR_ERR(group);
4600
4601 data->groups[num_attr_groups++] = group;
4602
4603 group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
4604 fls(data->have_temp));
4605 if (IS_ERR(group))
4606 return PTR_ERR(group);
4607
4608 data->groups[num_attr_groups++] = group;
4609 data->groups[num_attr_groups++] = &nct6775_group_other;
4610
4611 hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
4612 data, data->groups);
4613 return PTR_ERR_OR_ZERO(hwmon_dev);
4614}
4615
4616static void nct6791_enable_io_mapping(int sioaddr)
4617{
4618 int val;
4619
4620 val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
4621 if (val & 0x10) {
4622 pr_info("Enabling hardware monitor logical device mappings.\n");
4623 superio_outb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
4624 val & ~0x10);
4625 }
4626}
4627
4628static int __maybe_unused nct6775_suspend(struct device *dev)
4629{
4630 struct nct6775_data *data = nct6775_update_device(dev);
4631
4632 mutex_lock(&data->update_lock);
4633 data->vbat = nct6775_read_value(data, data->REG_VBAT);
4634 if (data->kind == nct6775) {
4635 data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1);
4636 data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2);
4637 }
4638 mutex_unlock(&data->update_lock);
4639
4640 return 0;
4641}
4642
4643static int __maybe_unused nct6775_resume(struct device *dev)
4644{
4645 struct nct6775_data *data = dev_get_drvdata(dev);
4646 int sioreg = data->sioreg;
4647 int i, j, err = 0;
4648 u8 reg;
4649
4650 mutex_lock(&data->update_lock);
4651 data->bank = 0xff; /* Force initial bank selection */
4652
4653 err = superio_enter(sioreg);
4654 if (err)
4655 goto abort;
4656
4657 superio_select(sioreg, NCT6775_LD_HWM);
4658 reg = superio_inb(sioreg, SIO_REG_ENABLE);
4659 if (reg != data->sio_reg_enable)
4660 superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
4661
4662 if (data->kind == nct6791 || data->kind == nct6792 ||
4663 data->kind == nct6793 || data->kind == nct6795 ||
4664 data->kind == nct6796 || data->kind == nct6797 ||
4665 data->kind == nct6798)
4666 nct6791_enable_io_mapping(sioreg);
4667
4668 superio_exit(sioreg);
4669
4670 /* Restore limits */
4671 for (i = 0; i < data->in_num; i++) {
4672 if (!(data->have_in & BIT(i)))
4673 continue;
4674
4675 nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
4676 data->in[i][1]);
4677 nct6775_write_value(data, data->REG_IN_MINMAX[1][i],
4678 data->in[i][2]);
4679 }
4680
4681 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
4682 if (!(data->has_fan_min & BIT(i)))
4683 continue;
4684
4685 nct6775_write_value(data, data->REG_FAN_MIN[i],
4686 data->fan_min[i]);
4687 }
4688
4689 for (i = 0; i < NUM_TEMP; i++) {
4690 if (!(data->have_temp & BIT(i)))
4691 continue;
4692
4693 for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
4694 if (data->reg_temp[j][i])
4695 nct6775_write_temp(data, data->reg_temp[j][i],
4696 data->temp[j][i]);
4697 }
4698
4699 /* Restore other settings */
4700 nct6775_write_value(data, data->REG_VBAT, data->vbat);
4701 if (data->kind == nct6775) {
4702 nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
4703 nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
4704 }
4705
4706abort:
4707 /* Force re-reading all values */
4708 data->valid = false;
4709 mutex_unlock(&data->update_lock);
4710
4711 return err;
4712}
4713
4714static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
4715
4716static struct platform_driver nct6775_driver = {
4717 .driver = {
4718 .name = DRVNAME,
4719 .pm = &nct6775_dev_pm_ops,
4720 },
4721 .probe = nct6775_probe,
4722};
4723
4724/* nct6775_find() looks for a '627 in the Super-I/O config space */
4725static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
4726{
4727 u16 val;
4728 int err;
4729 int addr;
4730
4731 err = superio_enter(sioaddr);
4732 if (err)
4733 return err;
4734
4735 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) |
4736 superio_inb(sioaddr, SIO_REG_DEVID + 1);
4737 if (force_id && val != 0xffff)
4738 val = force_id;
4739
4740 switch (val & SIO_ID_MASK) {
4741 case SIO_NCT6106_ID:
4742 sio_data->kind = nct6106;
4743 break;
4744 case SIO_NCT6116_ID:
4745 sio_data->kind = nct6116;
4746 break;
4747 case SIO_NCT6775_ID:
4748 sio_data->kind = nct6775;
4749 break;
4750 case SIO_NCT6776_ID:
4751 sio_data->kind = nct6776;
4752 break;
4753 case SIO_NCT6779_ID:
4754 sio_data->kind = nct6779;
4755 break;
4756 case SIO_NCT6791_ID:
4757 sio_data->kind = nct6791;
4758 break;
4759 case SIO_NCT6792_ID:
4760 sio_data->kind = nct6792;
4761 break;
4762 case SIO_NCT6793_ID:
4763 sio_data->kind = nct6793;
4764 break;
4765 case SIO_NCT6795_ID:
4766 sio_data->kind = nct6795;
4767 break;
4768 case SIO_NCT6796_ID:
4769 sio_data->kind = nct6796;
4770 break;
4771 case SIO_NCT6797_ID:
4772 sio_data->kind = nct6797;
4773 break;
4774 case SIO_NCT6798_ID:
4775 sio_data->kind = nct6798;
4776 break;
4777 default:
4778 if (val != 0xffff)
4779 pr_debug("unsupported chip ID: 0x%04x\n", val);
4780 superio_exit(sioaddr);
4781 return -ENODEV;
4782 }
4783
4784 /* We have a known chip, find the HWM I/O address */
4785 superio_select(sioaddr, NCT6775_LD_HWM);
4786 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
4787 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
4788 addr = val & IOREGION_ALIGNMENT;
4789 if (addr == 0) {
4790 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
4791 superio_exit(sioaddr);
4792 return -ENODEV;
4793 }
4794
4795 /* Activate logical device if needed */
4796 val = superio_inb(sioaddr, SIO_REG_ENABLE);
4797 if (!(val & 0x01)) {
4798 pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
4799 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
4800 }
4801
4802 if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
4803 sio_data->kind == nct6793 || sio_data->kind == nct6795 ||
4804 sio_data->kind == nct6796 || sio_data->kind == nct6797 ||
4805 sio_data->kind == nct6798)
4806 nct6791_enable_io_mapping(sioaddr);
4807
4808 superio_exit(sioaddr);
4809 pr_info("Found %s or compatible chip at %#x:%#x\n",
4810 nct6775_sio_names[sio_data->kind], sioaddr, addr);
4811 sio_data->sioreg = sioaddr;
4812
4813 return addr;
4814}
4815
4816/*
4817 * when Super-I/O functions move to a separate file, the Super-I/O
4818 * bus will manage the lifetime of the device and this module will only keep
4819 * track of the nct6775 driver. But since we use platform_device_alloc(), we
4820 * must keep track of the device
4821 */
4822static struct platform_device *pdev[2];
4823
4824static int __init sensors_nct6775_init(void)
4825{
4826 int i, err;
4827 bool found = false;
4828 int address;
4829 struct resource res;
4830 struct nct6775_sio_data sio_data;
4831 int sioaddr[2] = { 0x2e, 0x4e };
4832
4833 err = platform_driver_register(&nct6775_driver);
4834 if (err)
4835 return err;
4836
4837 /*
4838 * initialize sio_data->kind and sio_data->sioreg.
4839 *
4840 * when Super-I/O functions move to a separate file, the Super-I/O
4841 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
4842 * nct6775 hardware monitor, and call probe()
4843 */
4844 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4845 address = nct6775_find(sioaddr[i], &sio_data);
4846 if (address <= 0)
4847 continue;
4848
4849 found = true;
4850
4851 pdev[i] = platform_device_alloc(DRVNAME, address);
4852 if (!pdev[i]) {
4853 err = -ENOMEM;
4854 goto exit_device_unregister;
4855 }
4856
4857 err = platform_device_add_data(pdev[i], &sio_data,
4858 sizeof(struct nct6775_sio_data));
4859 if (err)
4860 goto exit_device_put;
4861
4862 memset(&res, 0, sizeof(res));
4863 res.name = DRVNAME;
4864 res.start = address + IOREGION_OFFSET;
4865 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
4866 res.flags = IORESOURCE_IO;
4867
4868 err = acpi_check_resource_conflict(&res);
4869 if (err) {
4870 platform_device_put(pdev[i]);
4871 pdev[i] = NULL;
4872 continue;
4873 }
4874
4875 err = platform_device_add_resources(pdev[i], &res, 1);
4876 if (err)
4877 goto exit_device_put;
4878
4879 /* platform_device_add calls probe() */
4880 err = platform_device_add(pdev[i]);
4881 if (err)
4882 goto exit_device_put;
4883 }
4884 if (!found) {
4885 err = -ENODEV;
4886 goto exit_unregister;
4887 }
4888
4889 return 0;
4890
4891exit_device_put:
4892 platform_device_put(pdev[i]);
4893exit_device_unregister:
4894 while (--i >= 0) {
4895 if (pdev[i])
4896 platform_device_unregister(pdev[i]);
4897 }
4898exit_unregister:
4899 platform_driver_unregister(&nct6775_driver);
4900 return err;
4901}
4902
4903static void __exit sensors_nct6775_exit(void)
4904{
4905 int i;
4906
4907 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4908 if (pdev[i])
4909 platform_device_unregister(pdev[i]);
4910 }
4911 platform_driver_unregister(&nct6775_driver);
4912}
4913
4914MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
4915MODULE_DESCRIPTION("Driver for NCT6775F and compatible chips");
4916MODULE_LICENSE("GPL");
4917
4918module_init(sensors_nct6775_init);
4919module_exit(sensors_nct6775_exit);
1/*
2 * nct6775 - Driver for the hardware monitoring functionality of
3 * Nuvoton NCT677x Super-I/O chips
4 *
5 * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net>
6 *
7 * Derived from w83627ehf driver
8 * Copyright (C) 2005-2012 Jean Delvare <jdelvare@suse.de>
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)
14 *
15 * Shamelessly ripped from the w83627hf driver
16 * Copyright (C) 2003 Mark Studebaker
17 *
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.
22 *
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.
27 *
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.
31 *
32 *
33 * Supports the following chips:
34 *
35 * Chip #vin #fan #pwm #temp chip IDs man ID
36 * nct6106d 9 3 3 6+3 0xc450 0xc1 0x5ca3
37 * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3
38 * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3
39 * nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3
40 * nct6791d 15 6 6 2+6 0xc800 0xc1 0x5ca3
41 * nct6792d 15 6 6 2+6 0xc910 0xc1 0x5ca3
42 * nct6793d 15 6 6 2+6 0xd120 0xc1 0x5ca3
43 *
44 * #temp lists the number of monitored temperature sources (first value) plus
45 * the number of directly connectable temperature sensors (second value).
46 */
47
48#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
49
50#include <linux/module.h>
51#include <linux/init.h>
52#include <linux/slab.h>
53#include <linux/jiffies.h>
54#include <linux/platform_device.h>
55#include <linux/hwmon.h>
56#include <linux/hwmon-sysfs.h>
57#include <linux/hwmon-vid.h>
58#include <linux/err.h>
59#include <linux/mutex.h>
60#include <linux/acpi.h>
61#include <linux/dmi.h>
62#include <linux/io.h>
63#include "lm75.h"
64
65#define USE_ALTERNATE
66
67enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793 };
68
69/* used to set data->name = nct6775_device_names[data->sio_kind] */
70static const char * const nct6775_device_names[] = {
71 "nct6106",
72 "nct6775",
73 "nct6776",
74 "nct6779",
75 "nct6791",
76 "nct6792",
77 "nct6793",
78};
79
80static const char * const nct6775_sio_names[] __initconst = {
81 "NCT6106D",
82 "NCT6775F",
83 "NCT6776D/F",
84 "NCT6779D",
85 "NCT6791D",
86 "NCT6792D",
87 "NCT6793D",
88};
89
90static unsigned short force_id;
91module_param(force_id, ushort, 0);
92MODULE_PARM_DESC(force_id, "Override the detected device ID");
93
94static unsigned short fan_debounce;
95module_param(fan_debounce, ushort, 0);
96MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
97
98#define DRVNAME "nct6775"
99
100/*
101 * Super-I/O constants and functions
102 */
103
104#define NCT6775_LD_ACPI 0x0a
105#define NCT6775_LD_HWM 0x0b
106#define NCT6775_LD_VID 0x0d
107
108#define SIO_REG_LDSEL 0x07 /* Logical device select */
109#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
110#define SIO_REG_ENABLE 0x30 /* Logical device enable */
111#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
112
113#define SIO_NCT6106_ID 0xc450
114#define SIO_NCT6775_ID 0xb470
115#define SIO_NCT6776_ID 0xc330
116#define SIO_NCT6779_ID 0xc560
117#define SIO_NCT6791_ID 0xc800
118#define SIO_NCT6792_ID 0xc910
119#define SIO_NCT6793_ID 0xd120
120#define SIO_ID_MASK 0xFFF0
121
122enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
123
124static inline void
125superio_outb(int ioreg, int reg, int val)
126{
127 outb(reg, ioreg);
128 outb(val, ioreg + 1);
129}
130
131static inline int
132superio_inb(int ioreg, int reg)
133{
134 outb(reg, ioreg);
135 return inb(ioreg + 1);
136}
137
138static inline void
139superio_select(int ioreg, int ld)
140{
141 outb(SIO_REG_LDSEL, ioreg);
142 outb(ld, ioreg + 1);
143}
144
145static inline int
146superio_enter(int ioreg)
147{
148 /*
149 * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
150 */
151 if (!request_muxed_region(ioreg, 2, DRVNAME))
152 return -EBUSY;
153
154 outb(0x87, ioreg);
155 outb(0x87, ioreg);
156
157 return 0;
158}
159
160static inline void
161superio_exit(int ioreg)
162{
163 outb(0xaa, ioreg);
164 outb(0x02, ioreg);
165 outb(0x02, ioreg + 1);
166 release_region(ioreg, 2);
167}
168
169/*
170 * ISA constants
171 */
172
173#define IOREGION_ALIGNMENT (~7)
174#define IOREGION_OFFSET 5
175#define IOREGION_LENGTH 2
176#define ADDR_REG_OFFSET 0
177#define DATA_REG_OFFSET 1
178
179#define NCT6775_REG_BANK 0x4E
180#define NCT6775_REG_CONFIG 0x40
181
182/*
183 * Not currently used:
184 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
185 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
186 * REG_MAN_ID is at port 0x4f
187 * REG_CHIP_ID is at port 0x58
188 */
189
190#define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
191#define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
192
193#define NUM_REG_ALARM 7 /* Max number of alarm registers */
194#define NUM_REG_BEEP 5 /* Max number of beep registers */
195
196#define NUM_FAN 6
197
198/* Common and NCT6775 specific data */
199
200/* Voltage min/max registers for nr=7..14 are in bank 5 */
201
202static const u16 NCT6775_REG_IN_MAX[] = {
203 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a,
204 0x55c, 0x55e, 0x560, 0x562 };
205static const u16 NCT6775_REG_IN_MIN[] = {
206 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b,
207 0x55d, 0x55f, 0x561, 0x563 };
208static const u16 NCT6775_REG_IN[] = {
209 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
210};
211
212#define NCT6775_REG_VBAT 0x5D
213#define NCT6775_REG_DIODE 0x5E
214#define NCT6775_DIODE_MASK 0x02
215
216#define NCT6775_REG_FANDIV1 0x506
217#define NCT6775_REG_FANDIV2 0x507
218
219#define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
220
221static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B };
222
223/* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */
224
225static const s8 NCT6775_ALARM_BITS[] = {
226 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
227 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
228 -1, /* unused */
229 6, 7, 11, -1, -1, /* fan1..fan5 */
230 -1, -1, -1, /* unused */
231 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
232 12, -1 }; /* intrusion0, intrusion1 */
233
234#define FAN_ALARM_BASE 16
235#define TEMP_ALARM_BASE 24
236#define INTRUSION_ALARM_BASE 30
237
238static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e };
239
240/*
241 * 0..14 voltages, 15 global beep enable, 16..23 fans, 24..29 temperatures,
242 * 30..31 intrusion
243 */
244static const s8 NCT6775_BEEP_BITS[] = {
245 0, 1, 2, 3, 8, 9, 10, 16, /* in0.. in7 */
246 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
247 21, /* global beep enable */
248 6, 7, 11, 28, -1, /* fan1..fan5 */
249 -1, -1, -1, /* unused */
250 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
251 12, -1 }; /* intrusion0, intrusion1 */
252
253#define BEEP_ENABLE_BASE 15
254
255static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
256static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
257
258/* DC or PWM output fan configuration */
259static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
260static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
261
262/* Advanced Fan control, some values are common for all fans */
263
264static const u16 NCT6775_REG_TARGET[] = {
265 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01 };
266static const u16 NCT6775_REG_FAN_MODE[] = {
267 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02 };
268static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
269 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03 };
270static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
271 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04 };
272static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
273 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05 };
274static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
275 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06 };
276static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
277static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
278
279static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
280 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07 };
281static const u16 NCT6775_REG_PWM[] = {
282 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09 };
283static const u16 NCT6775_REG_PWM_READ[] = {
284 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09 };
285
286static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
287static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
288static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 };
289static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 };
290
291static const u16 NCT6775_REG_TEMP[] = {
292 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
293
294static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
295
296static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
297 0, 0x152, 0x252, 0x628, 0x629, 0x62A };
298static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
299 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
300static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
301 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
302
303static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
304 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
305
306static const u16 NCT6775_REG_TEMP_SEL[] = {
307 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00 };
308
309static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {
310 0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 };
311static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = {
312 0x13a, 0x23a, 0x33a, 0x83a, 0x93a, 0xa3a };
313static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = {
314 0x13b, 0x23b, 0x33b, 0x83b, 0x93b, 0xa3b };
315static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = {
316 0x13c, 0x23c, 0x33c, 0x83c, 0x93c, 0xa3c };
317static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {
318 0x13d, 0x23d, 0x33d, 0x83d, 0x93d, 0xa3d };
319
320static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
321
322static const u16 NCT6775_REG_AUTO_TEMP[] = {
323 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21 };
324static const u16 NCT6775_REG_AUTO_PWM[] = {
325 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27 };
326
327#define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
328#define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
329
330static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
331
332static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
333 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35 };
334static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
335 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38 };
336
337static const char *const nct6775_temp_label[] = {
338 "",
339 "SYSTIN",
340 "CPUTIN",
341 "AUXTIN",
342 "AMD SB-TSI",
343 "PECI Agent 0",
344 "PECI Agent 1",
345 "PECI Agent 2",
346 "PECI Agent 3",
347 "PECI Agent 4",
348 "PECI Agent 5",
349 "PECI Agent 6",
350 "PECI Agent 7",
351 "PCH_CHIP_CPU_MAX_TEMP",
352 "PCH_CHIP_TEMP",
353 "PCH_CPU_TEMP",
354 "PCH_MCH_TEMP",
355 "PCH_DIM0_TEMP",
356 "PCH_DIM1_TEMP",
357 "PCH_DIM2_TEMP",
358 "PCH_DIM3_TEMP"
359};
360
361static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
362 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
363
364static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
365 = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06,
366 0xa07 };
367
368/* NCT6776 specific data */
369
370/* STEP_UP_TIME and STEP_DOWN_TIME regs are swapped for all chips but NCT6775 */
371#define NCT6776_REG_FAN_STEP_UP_TIME NCT6775_REG_FAN_STEP_DOWN_TIME
372#define NCT6776_REG_FAN_STEP_DOWN_TIME NCT6775_REG_FAN_STEP_UP_TIME
373
374static const s8 NCT6776_ALARM_BITS[] = {
375 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
376 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
377 -1, /* unused */
378 6, 7, 11, 10, 23, /* fan1..fan5 */
379 -1, -1, -1, /* unused */
380 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
381 12, 9 }; /* intrusion0, intrusion1 */
382
383static const u16 NCT6776_REG_BEEP[NUM_REG_BEEP] = { 0xb2, 0xb3, 0xb4, 0xb5 };
384
385static const s8 NCT6776_BEEP_BITS[] = {
386 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
387 8, -1, -1, -1, -1, -1, -1, /* in8..in14 */
388 24, /* global beep enable */
389 25, 26, 27, 28, 29, /* fan1..fan5 */
390 -1, -1, -1, /* unused */
391 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
392 30, 31 }; /* intrusion0, intrusion1 */
393
394static const u16 NCT6776_REG_TOLERANCE_H[] = {
395 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c };
396
397static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 };
398static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 };
399
400static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 };
401static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
402
403static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {
404 0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e };
405
406static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
407 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
408
409static const char *const nct6776_temp_label[] = {
410 "",
411 "SYSTIN",
412 "CPUTIN",
413 "AUXTIN",
414 "SMBUSMASTER 0",
415 "SMBUSMASTER 1",
416 "SMBUSMASTER 2",
417 "SMBUSMASTER 3",
418 "SMBUSMASTER 4",
419 "SMBUSMASTER 5",
420 "SMBUSMASTER 6",
421 "SMBUSMASTER 7",
422 "PECI Agent 0",
423 "PECI Agent 1",
424 "PCH_CHIP_CPU_MAX_TEMP",
425 "PCH_CHIP_TEMP",
426 "PCH_CPU_TEMP",
427 "PCH_MCH_TEMP",
428 "PCH_DIM0_TEMP",
429 "PCH_DIM1_TEMP",
430 "PCH_DIM2_TEMP",
431 "PCH_DIM3_TEMP",
432 "BYTE_TEMP"
433};
434
435static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
436 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
437
438static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
439 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
440
441/* NCT6779 specific data */
442
443static const u16 NCT6779_REG_IN[] = {
444 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
445 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e };
446
447static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = {
448 0x459, 0x45A, 0x45B, 0x568 };
449
450static const s8 NCT6779_ALARM_BITS[] = {
451 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
452 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
453 -1, /* unused */
454 6, 7, 11, 10, 23, /* fan1..fan5 */
455 -1, -1, -1, /* unused */
456 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
457 12, 9 }; /* intrusion0, intrusion1 */
458
459static const s8 NCT6779_BEEP_BITS[] = {
460 0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
461 8, 9, 10, 11, 12, 13, 14, /* in8..in14 */
462 24, /* global beep enable */
463 25, 26, 27, 28, 29, /* fan1..fan5 */
464 -1, -1, -1, /* unused */
465 16, 17, -1, -1, -1, -1, /* temp1..temp6 */
466 30, 31 }; /* intrusion0, intrusion1 */
467
468static const u16 NCT6779_REG_FAN[] = {
469 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba };
470static const u16 NCT6779_REG_FAN_PULSES[] = {
471 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
472
473static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
474 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36 };
475#define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
476static const u16 NCT6779_REG_CRITICAL_PWM[] = {
477 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
478
479static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
480static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
481static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
482 0x18, 0x152 };
483static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
484 0x3a, 0x153 };
485static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
486 0x39, 0x155 };
487
488static const u16 NCT6779_REG_TEMP_OFFSET[] = {
489 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
490
491static const char *const nct6779_temp_label[] = {
492 "",
493 "SYSTIN",
494 "CPUTIN",
495 "AUXTIN0",
496 "AUXTIN1",
497 "AUXTIN2",
498 "AUXTIN3",
499 "",
500 "SMBUSMASTER 0",
501 "SMBUSMASTER 1",
502 "SMBUSMASTER 2",
503 "SMBUSMASTER 3",
504 "SMBUSMASTER 4",
505 "SMBUSMASTER 5",
506 "SMBUSMASTER 6",
507 "SMBUSMASTER 7",
508 "PECI Agent 0",
509 "PECI Agent 1",
510 "PCH_CHIP_CPU_MAX_TEMP",
511 "PCH_CHIP_TEMP",
512 "PCH_CPU_TEMP",
513 "PCH_MCH_TEMP",
514 "PCH_DIM0_TEMP",
515 "PCH_DIM1_TEMP",
516 "PCH_DIM2_TEMP",
517 "PCH_DIM3_TEMP",
518 "BYTE_TEMP",
519 "",
520 "",
521 "",
522 "",
523 "Virtual_TEMP"
524};
525
526#define NCT6779_NUM_LABELS (ARRAY_SIZE(nct6779_temp_label) - 5)
527#define NCT6791_NUM_LABELS ARRAY_SIZE(nct6779_temp_label)
528
529static const u16 NCT6779_REG_TEMP_ALTERNATE[NCT6791_NUM_LABELS - 1]
530 = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
531 0, 0, 0, 0, 0, 0, 0, 0,
532 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
533 0x408, 0 };
534
535static const u16 NCT6779_REG_TEMP_CRIT[NCT6791_NUM_LABELS - 1]
536 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
537
538/* NCT6791 specific data */
539
540#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
541
542static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 };
543static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a };
544static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b };
545static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c };
546static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d };
547static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 0, 0x23e };
548
549static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
550 0x459, 0x45A, 0x45B, 0x568, 0x45D };
551
552static const s8 NCT6791_ALARM_BITS[] = {
553 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
554 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
555 -1, /* unused */
556 6, 7, 11, 10, 23, 33, /* fan1..fan6 */
557 -1, -1, /* unused */
558 4, 5, 13, -1, -1, -1, /* temp1..temp6 */
559 12, 9 }; /* intrusion0, intrusion1 */
560
561/* NCT6792/NCT6793 specific data */
562
563static const u16 NCT6792_REG_TEMP_MON[] = {
564 0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
565static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
566 0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
567
568static const char *const nct6792_temp_label[] = {
569 "",
570 "SYSTIN",
571 "CPUTIN",
572 "AUXTIN0",
573 "AUXTIN1",
574 "AUXTIN2",
575 "AUXTIN3",
576 "",
577 "SMBUSMASTER 0",
578 "SMBUSMASTER 1",
579 "SMBUSMASTER 2",
580 "SMBUSMASTER 3",
581 "SMBUSMASTER 4",
582 "SMBUSMASTER 5",
583 "SMBUSMASTER 6",
584 "SMBUSMASTER 7",
585 "PECI Agent 0",
586 "PECI Agent 1",
587 "PCH_CHIP_CPU_MAX_TEMP",
588 "PCH_CHIP_TEMP",
589 "PCH_CPU_TEMP",
590 "PCH_MCH_TEMP",
591 "PCH_DIM0_TEMP",
592 "PCH_DIM1_TEMP",
593 "PCH_DIM2_TEMP",
594 "PCH_DIM3_TEMP",
595 "BYTE_TEMP",
596 "PECI Agent 0 Calibration",
597 "PECI Agent 1 Calibration",
598 "",
599 "",
600 "Virtual_TEMP"
601};
602
603static const char *const nct6793_temp_label[] = {
604 "",
605 "SYSTIN",
606 "CPUTIN",
607 "AUXTIN0",
608 "AUXTIN1",
609 "AUXTIN2",
610 "AUXTIN3",
611 "",
612 "SMBUSMASTER 0",
613 "SMBUSMASTER 1",
614 "",
615 "",
616 "",
617 "",
618 "",
619 "",
620 "PECI Agent 0",
621 "PECI Agent 1",
622 "PCH_CHIP_CPU_MAX_TEMP",
623 "PCH_CHIP_TEMP",
624 "PCH_CPU_TEMP",
625 "PCH_MCH_TEMP",
626 "Agent0 Dimm0 ",
627 "Agent0 Dimm1",
628 "Agent1 Dimm0",
629 "Agent1 Dimm1",
630 "BYTE_TEMP0",
631 "BYTE_TEMP1",
632 "PECI Agent 0 Calibration",
633 "PECI Agent 1 Calibration",
634 "",
635 "Virtual_TEMP"
636};
637
638/* NCT6102D/NCT6106D specific data */
639
640#define NCT6106_REG_VBAT 0x318
641#define NCT6106_REG_DIODE 0x319
642#define NCT6106_DIODE_MASK 0x01
643
644static const u16 NCT6106_REG_IN_MAX[] = {
645 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 };
646static const u16 NCT6106_REG_IN_MIN[] = {
647 0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 };
648static const u16 NCT6106_REG_IN[] = {
649 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
650
651static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
652static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
653static const u16 NCT6106_REG_TEMP_HYST[] = {
654 0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
655static const u16 NCT6106_REG_TEMP_OVER[] = {
656 0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 };
657static const u16 NCT6106_REG_TEMP_CRIT_L[] = {
658 0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 };
659static const u16 NCT6106_REG_TEMP_CRIT_H[] = {
660 0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 };
661static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
662static const u16 NCT6106_REG_TEMP_CONFIG[] = {
663 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc };
664
665static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 };
666static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 };
667static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0, 0 };
668static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4, 0, 0 };
669
670static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
671static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
672static const u16 NCT6106_REG_PWM[] = { 0x119, 0x129, 0x139 };
673static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
674static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 };
675static const u16 NCT6106_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130 };
676static const u16 NCT6106_REG_TEMP_SOURCE[] = {
677 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 };
678
679static const u16 NCT6106_REG_CRITICAL_TEMP[] = { 0x11a, 0x12a, 0x13a };
680static const u16 NCT6106_REG_CRITICAL_TEMP_TOLERANCE[] = {
681 0x11b, 0x12b, 0x13b };
682
683static const u16 NCT6106_REG_CRITICAL_PWM_ENABLE[] = { 0x11c, 0x12c, 0x13c };
684#define NCT6106_CRITICAL_PWM_ENABLE_MASK 0x10
685static const u16 NCT6106_REG_CRITICAL_PWM[] = { 0x11d, 0x12d, 0x13d };
686
687static const u16 NCT6106_REG_FAN_STEP_UP_TIME[] = { 0x114, 0x124, 0x134 };
688static const u16 NCT6106_REG_FAN_STEP_DOWN_TIME[] = { 0x115, 0x125, 0x135 };
689static const u16 NCT6106_REG_FAN_STOP_OUTPUT[] = { 0x116, 0x126, 0x136 };
690static const u16 NCT6106_REG_FAN_START_OUTPUT[] = { 0x117, 0x127, 0x137 };
691static const u16 NCT6106_REG_FAN_STOP_TIME[] = { 0x118, 0x128, 0x138 };
692static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 };
693
694static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 };
695
696static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
697static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
698static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
699static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x17c };
700static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
701static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
702
703static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 };
704static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 };
705
706static const u16 NCT6106_REG_ALARM[NUM_REG_ALARM] = {
707 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d };
708
709static const s8 NCT6106_ALARM_BITS[] = {
710 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
711 9, -1, -1, -1, -1, -1, -1, /* in8..in14 */
712 -1, /* unused */
713 32, 33, 34, -1, -1, /* fan1..fan5 */
714 -1, -1, -1, /* unused */
715 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
716 48, -1 /* intrusion0, intrusion1 */
717};
718
719static const u16 NCT6106_REG_BEEP[NUM_REG_BEEP] = {
720 0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 };
721
722static const s8 NCT6106_BEEP_BITS[] = {
723 0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
724 9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
725 32, /* global beep enable */
726 24, 25, 26, 27, 28, /* fan1..fan5 */
727 -1, -1, -1, /* unused */
728 16, 17, 18, 19, 20, 21, /* temp1..temp6 */
729 34, -1 /* intrusion0, intrusion1 */
730};
731
732static const u16 NCT6106_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
733 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x51, 0x52, 0x54 };
734
735static const u16 NCT6106_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
736 = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x204, 0x205 };
737
738static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
739{
740 if (mode == 0 && pwm == 255)
741 return off;
742 return mode + 1;
743}
744
745static int pwm_enable_to_reg(enum pwm_enable mode)
746{
747 if (mode == off)
748 return 0;
749 return mode - 1;
750}
751
752/*
753 * Conversions
754 */
755
756/* 1 is DC mode, output in ms */
757static unsigned int step_time_from_reg(u8 reg, u8 mode)
758{
759 return mode ? 400 * reg : 100 * reg;
760}
761
762static u8 step_time_to_reg(unsigned int msec, u8 mode)
763{
764 return clamp_val((mode ? (msec + 200) / 400 :
765 (msec + 50) / 100), 1, 255);
766}
767
768static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
769{
770 if (reg == 0 || reg == 255)
771 return 0;
772 return 1350000U / (reg << divreg);
773}
774
775static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
776{
777 if ((reg & 0xff1f) == 0xff1f)
778 return 0;
779
780 reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
781
782 if (reg == 0)
783 return 0;
784
785 return 1350000U / reg;
786}
787
788static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
789{
790 if (reg == 0 || reg == 0xffff)
791 return 0;
792
793 /*
794 * Even though the registers are 16 bit wide, the fan divisor
795 * still applies.
796 */
797 return 1350000U / (reg << divreg);
798}
799
800static u16 fan_to_reg(u32 fan, unsigned int divreg)
801{
802 if (!fan)
803 return 0;
804
805 return (1350000U / fan) >> divreg;
806}
807
808static inline unsigned int
809div_from_reg(u8 reg)
810{
811 return 1 << reg;
812}
813
814/*
815 * Some of the voltage inputs have internal scaling, the tables below
816 * contain 8 (the ADC LSB in mV) * scaling factor * 100
817 */
818static const u16 scale_in[15] = {
819 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
820 800, 800
821};
822
823static inline long in_from_reg(u8 reg, u8 nr)
824{
825 return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
826}
827
828static inline u8 in_to_reg(u32 val, u8 nr)
829{
830 return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255);
831}
832
833/*
834 * Data structures and manipulation thereof
835 */
836
837struct nct6775_data {
838 int addr; /* IO base of hw monitor block */
839 int sioreg; /* SIO register address */
840 enum kinds kind;
841 const char *name;
842
843 const struct attribute_group *groups[6];
844
845 u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
846 * 3=temp_crit, 4=temp_lcrit
847 */
848 u8 temp_src[NUM_TEMP];
849 u16 reg_temp_config[NUM_TEMP];
850 const char * const *temp_label;
851 int temp_label_num;
852
853 u16 REG_CONFIG;
854 u16 REG_VBAT;
855 u16 REG_DIODE;
856 u8 DIODE_MASK;
857
858 const s8 *ALARM_BITS;
859 const s8 *BEEP_BITS;
860
861 const u16 *REG_VIN;
862 const u16 *REG_IN_MINMAX[2];
863
864 const u16 *REG_TARGET;
865 const u16 *REG_FAN;
866 const u16 *REG_FAN_MODE;
867 const u16 *REG_FAN_MIN;
868 const u16 *REG_FAN_PULSES;
869 const u16 *FAN_PULSE_SHIFT;
870 const u16 *REG_FAN_TIME[3];
871
872 const u16 *REG_TOLERANCE_H;
873
874 const u8 *REG_PWM_MODE;
875 const u8 *PWM_MODE_MASK;
876
877 const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
878 * [3]=pwm_max, [4]=pwm_step,
879 * [5]=weight_duty_step, [6]=weight_duty_base
880 */
881 const u16 *REG_PWM_READ;
882
883 const u16 *REG_CRITICAL_PWM_ENABLE;
884 u8 CRITICAL_PWM_ENABLE_MASK;
885 const u16 *REG_CRITICAL_PWM;
886
887 const u16 *REG_AUTO_TEMP;
888 const u16 *REG_AUTO_PWM;
889
890 const u16 *REG_CRITICAL_TEMP;
891 const u16 *REG_CRITICAL_TEMP_TOLERANCE;
892
893 const u16 *REG_TEMP_SOURCE; /* temp register sources */
894 const u16 *REG_TEMP_SEL;
895 const u16 *REG_WEIGHT_TEMP_SEL;
896 const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
897
898 const u16 *REG_TEMP_OFFSET;
899
900 const u16 *REG_ALARM;
901 const u16 *REG_BEEP;
902
903 unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
904 unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
905
906 struct mutex update_lock;
907 bool valid; /* true if following fields are valid */
908 unsigned long last_updated; /* In jiffies */
909
910 /* Register values */
911 u8 bank; /* current register bank */
912 u8 in_num; /* number of in inputs we have */
913 u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
914 unsigned int rpm[NUM_FAN];
915 u16 fan_min[NUM_FAN];
916 u8 fan_pulses[NUM_FAN];
917 u8 fan_div[NUM_FAN];
918 u8 has_pwm;
919 u8 has_fan; /* some fan inputs can be disabled */
920 u8 has_fan_min; /* some fans don't have min register */
921 bool has_fan_div;
922
923 u8 num_temp_alarms; /* 2, 3, or 6 */
924 u8 num_temp_beeps; /* 2, 3, or 6 */
925 u8 temp_fixed_num; /* 3 or 6 */
926 u8 temp_type[NUM_TEMP_FIXED];
927 s8 temp_offset[NUM_TEMP_FIXED];
928 s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
929 * 3=temp_crit, 4=temp_lcrit */
930 u64 alarms;
931 u64 beeps;
932
933 u8 pwm_num; /* number of pwm */
934 u8 pwm_mode[NUM_FAN]; /* 1->DC variable voltage,
935 * 0->PWM variable duty cycle
936 */
937 enum pwm_enable pwm_enable[NUM_FAN];
938 /* 0->off
939 * 1->manual
940 * 2->thermal cruise mode (also called SmartFan I)
941 * 3->fan speed cruise mode
942 * 4->SmartFan III
943 * 5->enhanced variable thermal cruise (SmartFan IV)
944 */
945 u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
946 * [3]=pwm_max, [4]=pwm_step,
947 * [5]=weight_duty_step, [6]=weight_duty_base
948 */
949
950 u8 target_temp[NUM_FAN];
951 u8 target_temp_mask;
952 u32 target_speed[NUM_FAN];
953 u32 target_speed_tolerance[NUM_FAN];
954 u8 speed_tolerance_limit;
955
956 u8 temp_tolerance[2][NUM_FAN];
957 u8 tolerance_mask;
958
959 u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
960
961 /* Automatic fan speed control registers */
962 int auto_pwm_num;
963 u8 auto_pwm[NUM_FAN][7];
964 u8 auto_temp[NUM_FAN][7];
965 u8 pwm_temp_sel[NUM_FAN];
966 u8 pwm_weight_temp_sel[NUM_FAN];
967 u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
968 * 2->temp_base
969 */
970
971 u8 vid;
972 u8 vrm;
973
974 bool have_vid;
975
976 u16 have_temp;
977 u16 have_temp_fixed;
978 u16 have_in;
979
980 /* Remember extra register values over suspend/resume */
981 u8 vbat;
982 u8 fandiv1;
983 u8 fandiv2;
984 u8 sio_reg_enable;
985};
986
987struct nct6775_sio_data {
988 int sioreg;
989 enum kinds kind;
990};
991
992struct sensor_device_template {
993 struct device_attribute dev_attr;
994 union {
995 struct {
996 u8 nr;
997 u8 index;
998 } s;
999 int index;
1000 } u;
1001 bool s2; /* true if both index and nr are used */
1002};
1003
1004struct sensor_device_attr_u {
1005 union {
1006 struct sensor_device_attribute a1;
1007 struct sensor_device_attribute_2 a2;
1008 } u;
1009 char name[32];
1010};
1011
1012#define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \
1013 .attr = {.name = _template, .mode = _mode }, \
1014 .show = _show, \
1015 .store = _store, \
1016}
1017
1018#define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \
1019 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
1020 .u.index = _index, \
1021 .s2 = false }
1022
1023#define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
1024 _nr, _index) \
1025 { .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
1026 .u.s.index = _index, \
1027 .u.s.nr = _nr, \
1028 .s2 = true }
1029
1030#define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \
1031static struct sensor_device_template sensor_dev_template_##_name \
1032 = SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \
1033 _index)
1034
1035#define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \
1036 _nr, _index) \
1037static struct sensor_device_template sensor_dev_template_##_name \
1038 = SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
1039 _nr, _index)
1040
1041struct sensor_template_group {
1042 struct sensor_device_template **templates;
1043 umode_t (*is_visible)(struct kobject *, struct attribute *, int);
1044 int base;
1045};
1046
1047static struct attribute_group *
1048nct6775_create_attr_group(struct device *dev,
1049 const struct sensor_template_group *tg,
1050 int repeat)
1051{
1052 struct attribute_group *group;
1053 struct sensor_device_attr_u *su;
1054 struct sensor_device_attribute *a;
1055 struct sensor_device_attribute_2 *a2;
1056 struct attribute **attrs;
1057 struct sensor_device_template **t;
1058 int i, count;
1059
1060 if (repeat <= 0)
1061 return ERR_PTR(-EINVAL);
1062
1063 t = tg->templates;
1064 for (count = 0; *t; t++, count++)
1065 ;
1066
1067 if (count == 0)
1068 return ERR_PTR(-EINVAL);
1069
1070 group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
1071 if (group == NULL)
1072 return ERR_PTR(-ENOMEM);
1073
1074 attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1),
1075 GFP_KERNEL);
1076 if (attrs == NULL)
1077 return ERR_PTR(-ENOMEM);
1078
1079 su = devm_kzalloc(dev, sizeof(*su) * repeat * count,
1080 GFP_KERNEL);
1081 if (su == NULL)
1082 return ERR_PTR(-ENOMEM);
1083
1084 group->attrs = attrs;
1085 group->is_visible = tg->is_visible;
1086
1087 for (i = 0; i < repeat; i++) {
1088 t = tg->templates;
1089 while (*t != NULL) {
1090 snprintf(su->name, sizeof(su->name),
1091 (*t)->dev_attr.attr.name, tg->base + i);
1092 if ((*t)->s2) {
1093 a2 = &su->u.a2;
1094 sysfs_attr_init(&a2->dev_attr.attr);
1095 a2->dev_attr.attr.name = su->name;
1096 a2->nr = (*t)->u.s.nr + i;
1097 a2->index = (*t)->u.s.index;
1098 a2->dev_attr.attr.mode =
1099 (*t)->dev_attr.attr.mode;
1100 a2->dev_attr.show = (*t)->dev_attr.show;
1101 a2->dev_attr.store = (*t)->dev_attr.store;
1102 *attrs = &a2->dev_attr.attr;
1103 } else {
1104 a = &su->u.a1;
1105 sysfs_attr_init(&a->dev_attr.attr);
1106 a->dev_attr.attr.name = su->name;
1107 a->index = (*t)->u.index + i;
1108 a->dev_attr.attr.mode =
1109 (*t)->dev_attr.attr.mode;
1110 a->dev_attr.show = (*t)->dev_attr.show;
1111 a->dev_attr.store = (*t)->dev_attr.store;
1112 *attrs = &a->dev_attr.attr;
1113 }
1114 attrs++;
1115 su++;
1116 t++;
1117 }
1118 }
1119
1120 return group;
1121}
1122
1123static bool is_word_sized(struct nct6775_data *data, u16 reg)
1124{
1125 switch (data->kind) {
1126 case nct6106:
1127 return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
1128 reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
1129 reg == 0x111 || reg == 0x121 || reg == 0x131;
1130 case nct6775:
1131 return (((reg & 0xff00) == 0x100 ||
1132 (reg & 0xff00) == 0x200) &&
1133 ((reg & 0x00ff) == 0x50 ||
1134 (reg & 0x00ff) == 0x53 ||
1135 (reg & 0x00ff) == 0x55)) ||
1136 (reg & 0xfff0) == 0x630 ||
1137 reg == 0x640 || reg == 0x642 ||
1138 reg == 0x662 ||
1139 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1140 reg == 0x73 || reg == 0x75 || reg == 0x77;
1141 case nct6776:
1142 return (((reg & 0xff00) == 0x100 ||
1143 (reg & 0xff00) == 0x200) &&
1144 ((reg & 0x00ff) == 0x50 ||
1145 (reg & 0x00ff) == 0x53 ||
1146 (reg & 0x00ff) == 0x55)) ||
1147 (reg & 0xfff0) == 0x630 ||
1148 reg == 0x402 ||
1149 reg == 0x640 || reg == 0x642 ||
1150 ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
1151 reg == 0x73 || reg == 0x75 || reg == 0x77;
1152 case nct6779:
1153 case nct6791:
1154 case nct6792:
1155 case nct6793:
1156 return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
1157 ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
1158 reg == 0x402 ||
1159 reg == 0x63a || reg == 0x63c || reg == 0x63e ||
1160 reg == 0x640 || reg == 0x642 ||
1161 reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
1162 reg == 0x7b || reg == 0x7d;
1163 }
1164 return false;
1165}
1166
1167/*
1168 * On older chips, only registers 0x50-0x5f are banked.
1169 * On more recent chips, all registers are banked.
1170 * Assume that is the case and set the bank number for each access.
1171 * Cache the bank number so it only needs to be set if it changes.
1172 */
1173static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
1174{
1175 u8 bank = reg >> 8;
1176
1177 if (data->bank != bank) {
1178 outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
1179 outb_p(bank, data->addr + DATA_REG_OFFSET);
1180 data->bank = bank;
1181 }
1182}
1183
1184static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
1185{
1186 int res, word_sized = is_word_sized(data, reg);
1187
1188 nct6775_set_bank(data, reg);
1189 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1190 res = inb_p(data->addr + DATA_REG_OFFSET);
1191 if (word_sized) {
1192 outb_p((reg & 0xff) + 1,
1193 data->addr + ADDR_REG_OFFSET);
1194 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
1195 }
1196 return res;
1197}
1198
1199static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
1200{
1201 int word_sized = is_word_sized(data, reg);
1202
1203 nct6775_set_bank(data, reg);
1204 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
1205 if (word_sized) {
1206 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
1207 outb_p((reg & 0xff) + 1,
1208 data->addr + ADDR_REG_OFFSET);
1209 }
1210 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
1211 return 0;
1212}
1213
1214/* We left-align 8-bit temperature values to make the code simpler */
1215static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
1216{
1217 u16 res;
1218
1219 res = nct6775_read_value(data, reg);
1220 if (!is_word_sized(data, reg))
1221 res <<= 8;
1222
1223 return res;
1224}
1225
1226static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
1227{
1228 if (!is_word_sized(data, reg))
1229 value >>= 8;
1230 return nct6775_write_value(data, reg, value);
1231}
1232
1233/* This function assumes that the caller holds data->update_lock */
1234static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
1235{
1236 u8 reg;
1237
1238 switch (nr) {
1239 case 0:
1240 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
1241 | (data->fan_div[0] & 0x7);
1242 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1243 break;
1244 case 1:
1245 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
1246 | ((data->fan_div[1] << 4) & 0x70);
1247 nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
1248 break;
1249 case 2:
1250 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
1251 | (data->fan_div[2] & 0x7);
1252 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1253 break;
1254 case 3:
1255 reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
1256 | ((data->fan_div[3] << 4) & 0x70);
1257 nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
1258 break;
1259 }
1260}
1261
1262static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr)
1263{
1264 if (data->kind == nct6775)
1265 nct6775_write_fan_div(data, nr);
1266}
1267
1268static void nct6775_update_fan_div(struct nct6775_data *data)
1269{
1270 u8 i;
1271
1272 i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
1273 data->fan_div[0] = i & 0x7;
1274 data->fan_div[1] = (i & 0x70) >> 4;
1275 i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
1276 data->fan_div[2] = i & 0x7;
1277 if (data->has_fan & (1 << 3))
1278 data->fan_div[3] = (i & 0x70) >> 4;
1279}
1280
1281static void nct6775_update_fan_div_common(struct nct6775_data *data)
1282{
1283 if (data->kind == nct6775)
1284 nct6775_update_fan_div(data);
1285}
1286
1287static void nct6775_init_fan_div(struct nct6775_data *data)
1288{
1289 int i;
1290
1291 nct6775_update_fan_div_common(data);
1292 /*
1293 * For all fans, start with highest divider value if the divider
1294 * register is not initialized. This ensures that we get a
1295 * reading from the fan count register, even if it is not optimal.
1296 * We'll compute a better divider later on.
1297 */
1298 for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) {
1299 if (!(data->has_fan & (1 << i)))
1300 continue;
1301 if (data->fan_div[i] == 0) {
1302 data->fan_div[i] = 7;
1303 nct6775_write_fan_div_common(data, i);
1304 }
1305 }
1306}
1307
1308static void nct6775_init_fan_common(struct device *dev,
1309 struct nct6775_data *data)
1310{
1311 int i;
1312 u8 reg;
1313
1314 if (data->has_fan_div)
1315 nct6775_init_fan_div(data);
1316
1317 /*
1318 * If fan_min is not set (0), set it to 0xff to disable it. This
1319 * prevents the unnecessary warning when fanX_min is reported as 0.
1320 */
1321 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
1322 if (data->has_fan_min & (1 << i)) {
1323 reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
1324 if (!reg)
1325 nct6775_write_value(data, data->REG_FAN_MIN[i],
1326 data->has_fan_div ? 0xff
1327 : 0xff1f);
1328 }
1329 }
1330}
1331
1332static void nct6775_select_fan_div(struct device *dev,
1333 struct nct6775_data *data, int nr, u16 reg)
1334{
1335 u8 fan_div = data->fan_div[nr];
1336 u16 fan_min;
1337
1338 if (!data->has_fan_div)
1339 return;
1340
1341 /*
1342 * If we failed to measure the fan speed, or the reported value is not
1343 * in the optimal range, and the clock divider can be modified,
1344 * let's try that for next time.
1345 */
1346 if (reg == 0x00 && fan_div < 0x07)
1347 fan_div++;
1348 else if (reg != 0x00 && reg < 0x30 && fan_div > 0)
1349 fan_div--;
1350
1351 if (fan_div != data->fan_div[nr]) {
1352 dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n",
1353 nr + 1, div_from_reg(data->fan_div[nr]),
1354 div_from_reg(fan_div));
1355
1356 /* Preserve min limit if possible */
1357 if (data->has_fan_min & (1 << nr)) {
1358 fan_min = data->fan_min[nr];
1359 if (fan_div > data->fan_div[nr]) {
1360 if (fan_min != 255 && fan_min > 1)
1361 fan_min >>= 1;
1362 } else {
1363 if (fan_min != 255) {
1364 fan_min <<= 1;
1365 if (fan_min > 254)
1366 fan_min = 254;
1367 }
1368 }
1369 if (fan_min != data->fan_min[nr]) {
1370 data->fan_min[nr] = fan_min;
1371 nct6775_write_value(data, data->REG_FAN_MIN[nr],
1372 fan_min);
1373 }
1374 }
1375 data->fan_div[nr] = fan_div;
1376 nct6775_write_fan_div_common(data, nr);
1377 }
1378}
1379
1380static void nct6775_update_pwm(struct device *dev)
1381{
1382 struct nct6775_data *data = dev_get_drvdata(dev);
1383 int i, j;
1384 int fanmodecfg, reg;
1385 bool duty_is_dc;
1386
1387 for (i = 0; i < data->pwm_num; i++) {
1388 if (!(data->has_pwm & (1 << i)))
1389 continue;
1390
1391 duty_is_dc = data->REG_PWM_MODE[i] &&
1392 (nct6775_read_value(data, data->REG_PWM_MODE[i])
1393 & data->PWM_MODE_MASK[i]);
1394 data->pwm_mode[i] = duty_is_dc;
1395
1396 fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
1397 for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
1398 if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
1399 data->pwm[j][i]
1400 = nct6775_read_value(data,
1401 data->REG_PWM[j][i]);
1402 }
1403 }
1404
1405 data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
1406 (fanmodecfg >> 4) & 7);
1407
1408 if (!data->temp_tolerance[0][i] ||
1409 data->pwm_enable[i] != speed_cruise)
1410 data->temp_tolerance[0][i] = fanmodecfg & 0x0f;
1411 if (!data->target_speed_tolerance[i] ||
1412 data->pwm_enable[i] == speed_cruise) {
1413 u8 t = fanmodecfg & 0x0f;
1414
1415 if (data->REG_TOLERANCE_H) {
1416 t |= (nct6775_read_value(data,
1417 data->REG_TOLERANCE_H[i]) & 0x70) >> 1;
1418 }
1419 data->target_speed_tolerance[i] = t;
1420 }
1421
1422 data->temp_tolerance[1][i] =
1423 nct6775_read_value(data,
1424 data->REG_CRITICAL_TEMP_TOLERANCE[i]);
1425
1426 reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
1427 data->pwm_temp_sel[i] = reg & 0x1f;
1428 /* If fan can stop, report floor as 0 */
1429 if (reg & 0x80)
1430 data->pwm[2][i] = 0;
1431
1432 if (!data->REG_WEIGHT_TEMP_SEL[i])
1433 continue;
1434
1435 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
1436 data->pwm_weight_temp_sel[i] = reg & 0x1f;
1437 /* If weight is disabled, report weight source as 0 */
1438 if (j == 1 && !(reg & 0x80))
1439 data->pwm_weight_temp_sel[i] = 0;
1440
1441 /* Weight temp data */
1442 for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
1443 data->weight_temp[j][i]
1444 = nct6775_read_value(data,
1445 data->REG_WEIGHT_TEMP[j][i]);
1446 }
1447 }
1448}
1449
1450static void nct6775_update_pwm_limits(struct device *dev)
1451{
1452 struct nct6775_data *data = dev_get_drvdata(dev);
1453 int i, j;
1454 u8 reg;
1455 u16 reg_t;
1456
1457 for (i = 0; i < data->pwm_num; i++) {
1458 if (!(data->has_pwm & (1 << i)))
1459 continue;
1460
1461 for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
1462 data->fan_time[j][i] =
1463 nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
1464 }
1465
1466 reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
1467 /* Update only in matching mode or if never updated */
1468 if (!data->target_temp[i] ||
1469 data->pwm_enable[i] == thermal_cruise)
1470 data->target_temp[i] = reg_t & data->target_temp_mask;
1471 if (!data->target_speed[i] ||
1472 data->pwm_enable[i] == speed_cruise) {
1473 if (data->REG_TOLERANCE_H) {
1474 reg_t |= (nct6775_read_value(data,
1475 data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
1476 }
1477 data->target_speed[i] = reg_t;
1478 }
1479
1480 for (j = 0; j < data->auto_pwm_num; j++) {
1481 data->auto_pwm[i][j] =
1482 nct6775_read_value(data,
1483 NCT6775_AUTO_PWM(data, i, j));
1484 data->auto_temp[i][j] =
1485 nct6775_read_value(data,
1486 NCT6775_AUTO_TEMP(data, i, j));
1487 }
1488
1489 /* critical auto_pwm temperature data */
1490 data->auto_temp[i][data->auto_pwm_num] =
1491 nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
1492
1493 switch (data->kind) {
1494 case nct6775:
1495 reg = nct6775_read_value(data,
1496 NCT6775_REG_CRITICAL_ENAB[i]);
1497 data->auto_pwm[i][data->auto_pwm_num] =
1498 (reg & 0x02) ? 0xff : 0x00;
1499 break;
1500 case nct6776:
1501 data->auto_pwm[i][data->auto_pwm_num] = 0xff;
1502 break;
1503 case nct6106:
1504 case nct6779:
1505 case nct6791:
1506 case nct6792:
1507 case nct6793:
1508 reg = nct6775_read_value(data,
1509 data->REG_CRITICAL_PWM_ENABLE[i]);
1510 if (reg & data->CRITICAL_PWM_ENABLE_MASK)
1511 reg = nct6775_read_value(data,
1512 data->REG_CRITICAL_PWM[i]);
1513 else
1514 reg = 0xff;
1515 data->auto_pwm[i][data->auto_pwm_num] = reg;
1516 break;
1517 }
1518 }
1519}
1520
1521static struct nct6775_data *nct6775_update_device(struct device *dev)
1522{
1523 struct nct6775_data *data = dev_get_drvdata(dev);
1524 int i, j;
1525
1526 mutex_lock(&data->update_lock);
1527
1528 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1529 || !data->valid) {
1530 /* Fan clock dividers */
1531 nct6775_update_fan_div_common(data);
1532
1533 /* Measured voltages and limits */
1534 for (i = 0; i < data->in_num; i++) {
1535 if (!(data->have_in & (1 << i)))
1536 continue;
1537
1538 data->in[i][0] = nct6775_read_value(data,
1539 data->REG_VIN[i]);
1540 data->in[i][1] = nct6775_read_value(data,
1541 data->REG_IN_MINMAX[0][i]);
1542 data->in[i][2] = nct6775_read_value(data,
1543 data->REG_IN_MINMAX[1][i]);
1544 }
1545
1546 /* Measured fan speeds and limits */
1547 for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
1548 u16 reg;
1549
1550 if (!(data->has_fan & (1 << i)))
1551 continue;
1552
1553 reg = nct6775_read_value(data, data->REG_FAN[i]);
1554 data->rpm[i] = data->fan_from_reg(reg,
1555 data->fan_div[i]);
1556
1557 if (data->has_fan_min & (1 << i))
1558 data->fan_min[i] = nct6775_read_value(data,
1559 data->REG_FAN_MIN[i]);
1560 data->fan_pulses[i] =
1561 (nct6775_read_value(data, data->REG_FAN_PULSES[i])
1562 >> data->FAN_PULSE_SHIFT[i]) & 0x03;
1563
1564 nct6775_select_fan_div(dev, data, i, reg);
1565 }
1566
1567 nct6775_update_pwm(dev);
1568 nct6775_update_pwm_limits(dev);
1569
1570 /* Measured temperatures and limits */
1571 for (i = 0; i < NUM_TEMP; i++) {
1572 if (!(data->have_temp & (1 << i)))
1573 continue;
1574 for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
1575 if (data->reg_temp[j][i])
1576 data->temp[j][i]
1577 = nct6775_read_temp(data,
1578 data->reg_temp[j][i]);
1579 }
1580 if (i >= NUM_TEMP_FIXED ||
1581 !(data->have_temp_fixed & (1 << i)))
1582 continue;
1583 data->temp_offset[i]
1584 = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
1585 }
1586
1587 data->alarms = 0;
1588 for (i = 0; i < NUM_REG_ALARM; i++) {
1589 u8 alarm;
1590
1591 if (!data->REG_ALARM[i])
1592 continue;
1593 alarm = nct6775_read_value(data, data->REG_ALARM[i]);
1594 data->alarms |= ((u64)alarm) << (i << 3);
1595 }
1596
1597 data->beeps = 0;
1598 for (i = 0; i < NUM_REG_BEEP; i++) {
1599 u8 beep;
1600
1601 if (!data->REG_BEEP[i])
1602 continue;
1603 beep = nct6775_read_value(data, data->REG_BEEP[i]);
1604 data->beeps |= ((u64)beep) << (i << 3);
1605 }
1606
1607 data->last_updated = jiffies;
1608 data->valid = true;
1609 }
1610
1611 mutex_unlock(&data->update_lock);
1612 return data;
1613}
1614
1615/*
1616 * Sysfs callback functions
1617 */
1618static ssize_t
1619show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
1620{
1621 struct nct6775_data *data = nct6775_update_device(dev);
1622 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1623 int index = sattr->index;
1624 int nr = sattr->nr;
1625
1626 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
1627}
1628
1629static ssize_t
1630store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
1631 size_t count)
1632{
1633 struct nct6775_data *data = dev_get_drvdata(dev);
1634 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1635 int index = sattr->index;
1636 int nr = sattr->nr;
1637 unsigned long val;
1638 int err;
1639
1640 err = kstrtoul(buf, 10, &val);
1641 if (err < 0)
1642 return err;
1643 mutex_lock(&data->update_lock);
1644 data->in[nr][index] = in_to_reg(val, nr);
1645 nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr],
1646 data->in[nr][index]);
1647 mutex_unlock(&data->update_lock);
1648 return count;
1649}
1650
1651static ssize_t
1652show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1653{
1654 struct nct6775_data *data = nct6775_update_device(dev);
1655 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1656 int nr = data->ALARM_BITS[sattr->index];
1657
1658 return sprintf(buf, "%u\n",
1659 (unsigned int)((data->alarms >> nr) & 0x01));
1660}
1661
1662static int find_temp_source(struct nct6775_data *data, int index, int count)
1663{
1664 int source = data->temp_src[index];
1665 int nr;
1666
1667 for (nr = 0; nr < count; nr++) {
1668 int src;
1669
1670 src = nct6775_read_value(data,
1671 data->REG_TEMP_SOURCE[nr]) & 0x1f;
1672 if (src == source)
1673 return nr;
1674 }
1675 return -ENODEV;
1676}
1677
1678static ssize_t
1679show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
1680{
1681 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1682 struct nct6775_data *data = nct6775_update_device(dev);
1683 unsigned int alarm = 0;
1684 int nr;
1685
1686 /*
1687 * For temperatures, there is no fixed mapping from registers to alarm
1688 * bits. Alarm bits are determined by the temperature source mapping.
1689 */
1690 nr = find_temp_source(data, sattr->index, data->num_temp_alarms);
1691 if (nr >= 0) {
1692 int bit = data->ALARM_BITS[nr + TEMP_ALARM_BASE];
1693
1694 alarm = (data->alarms >> bit) & 0x01;
1695 }
1696 return sprintf(buf, "%u\n", alarm);
1697}
1698
1699static ssize_t
1700show_beep(struct device *dev, struct device_attribute *attr, char *buf)
1701{
1702 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1703 struct nct6775_data *data = nct6775_update_device(dev);
1704 int nr = data->BEEP_BITS[sattr->index];
1705
1706 return sprintf(buf, "%u\n",
1707 (unsigned int)((data->beeps >> nr) & 0x01));
1708}
1709
1710static ssize_t
1711store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
1712 size_t count)
1713{
1714 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1715 struct nct6775_data *data = dev_get_drvdata(dev);
1716 int nr = data->BEEP_BITS[sattr->index];
1717 int regindex = nr >> 3;
1718 unsigned long val;
1719 int err;
1720
1721 err = kstrtoul(buf, 10, &val);
1722 if (err < 0)
1723 return err;
1724 if (val > 1)
1725 return -EINVAL;
1726
1727 mutex_lock(&data->update_lock);
1728 if (val)
1729 data->beeps |= (1ULL << nr);
1730 else
1731 data->beeps &= ~(1ULL << nr);
1732 nct6775_write_value(data, data->REG_BEEP[regindex],
1733 (data->beeps >> (regindex << 3)) & 0xff);
1734 mutex_unlock(&data->update_lock);
1735 return count;
1736}
1737
1738static ssize_t
1739show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf)
1740{
1741 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1742 struct nct6775_data *data = nct6775_update_device(dev);
1743 unsigned int beep = 0;
1744 int nr;
1745
1746 /*
1747 * For temperatures, there is no fixed mapping from registers to beep
1748 * enable bits. Beep enable bits are determined by the temperature
1749 * source mapping.
1750 */
1751 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
1752 if (nr >= 0) {
1753 int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
1754
1755 beep = (data->beeps >> bit) & 0x01;
1756 }
1757 return sprintf(buf, "%u\n", beep);
1758}
1759
1760static ssize_t
1761store_temp_beep(struct device *dev, struct device_attribute *attr,
1762 const char *buf, size_t count)
1763{
1764 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
1765 struct nct6775_data *data = dev_get_drvdata(dev);
1766 int nr, bit, regindex;
1767 unsigned long val;
1768 int err;
1769
1770 err = kstrtoul(buf, 10, &val);
1771 if (err < 0)
1772 return err;
1773 if (val > 1)
1774 return -EINVAL;
1775
1776 nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
1777 if (nr < 0)
1778 return nr;
1779
1780 bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
1781 regindex = bit >> 3;
1782
1783 mutex_lock(&data->update_lock);
1784 if (val)
1785 data->beeps |= (1ULL << bit);
1786 else
1787 data->beeps &= ~(1ULL << bit);
1788 nct6775_write_value(data, data->REG_BEEP[regindex],
1789 (data->beeps >> (regindex << 3)) & 0xff);
1790 mutex_unlock(&data->update_lock);
1791
1792 return count;
1793}
1794
1795static umode_t nct6775_in_is_visible(struct kobject *kobj,
1796 struct attribute *attr, int index)
1797{
1798 struct device *dev = container_of(kobj, struct device, kobj);
1799 struct nct6775_data *data = dev_get_drvdata(dev);
1800 int in = index / 5; /* voltage index */
1801
1802 if (!(data->have_in & (1 << in)))
1803 return 0;
1804
1805 return attr->mode;
1806}
1807
1808SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
1809SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0);
1810SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep,
1811 0);
1812SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg,
1813 store_in_reg, 0, 1);
1814SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, show_in_reg,
1815 store_in_reg, 0, 2);
1816
1817/*
1818 * nct6775_in_is_visible uses the index into the following array
1819 * to determine if attributes should be created or not.
1820 * Any change in order or content must be matched.
1821 */
1822static struct sensor_device_template *nct6775_attributes_in_template[] = {
1823 &sensor_dev_template_in_input,
1824 &sensor_dev_template_in_alarm,
1825 &sensor_dev_template_in_beep,
1826 &sensor_dev_template_in_min,
1827 &sensor_dev_template_in_max,
1828 NULL
1829};
1830
1831static const struct sensor_template_group nct6775_in_template_group = {
1832 .templates = nct6775_attributes_in_template,
1833 .is_visible = nct6775_in_is_visible,
1834};
1835
1836static ssize_t
1837show_fan(struct device *dev, struct device_attribute *attr, char *buf)
1838{
1839 struct nct6775_data *data = nct6775_update_device(dev);
1840 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1841 int nr = sattr->index;
1842
1843 return sprintf(buf, "%d\n", data->rpm[nr]);
1844}
1845
1846static ssize_t
1847show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
1848{
1849 struct nct6775_data *data = nct6775_update_device(dev);
1850 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1851 int nr = sattr->index;
1852
1853 return sprintf(buf, "%d\n",
1854 data->fan_from_reg_min(data->fan_min[nr],
1855 data->fan_div[nr]));
1856}
1857
1858static ssize_t
1859show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
1860{
1861 struct nct6775_data *data = nct6775_update_device(dev);
1862 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1863 int nr = sattr->index;
1864
1865 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
1866}
1867
1868static ssize_t
1869store_fan_min(struct device *dev, struct device_attribute *attr,
1870 const char *buf, size_t count)
1871{
1872 struct nct6775_data *data = dev_get_drvdata(dev);
1873 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1874 int nr = sattr->index;
1875 unsigned long val;
1876 unsigned int reg;
1877 u8 new_div;
1878 int err;
1879
1880 err = kstrtoul(buf, 10, &val);
1881 if (err < 0)
1882 return err;
1883
1884 mutex_lock(&data->update_lock);
1885 if (!data->has_fan_div) {
1886 /* NCT6776F or NCT6779D; we know this is a 13 bit register */
1887 if (!val) {
1888 val = 0xff1f;
1889 } else {
1890 if (val > 1350000U)
1891 val = 135000U;
1892 val = 1350000U / val;
1893 val = (val & 0x1f) | ((val << 3) & 0xff00);
1894 }
1895 data->fan_min[nr] = val;
1896 goto write_min; /* Leave fan divider alone */
1897 }
1898 if (!val) {
1899 /* No min limit, alarm disabled */
1900 data->fan_min[nr] = 255;
1901 new_div = data->fan_div[nr]; /* No change */
1902 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
1903 goto write_div;
1904 }
1905 reg = 1350000U / val;
1906 if (reg >= 128 * 255) {
1907 /*
1908 * Speed below this value cannot possibly be represented,
1909 * even with the highest divider (128)
1910 */
1911 data->fan_min[nr] = 254;
1912 new_div = 7; /* 128 == (1 << 7) */
1913 dev_warn(dev,
1914 "fan%u low limit %lu below minimum %u, set to minimum\n",
1915 nr + 1, val, data->fan_from_reg_min(254, 7));
1916 } else if (!reg) {
1917 /*
1918 * Speed above this value cannot possibly be represented,
1919 * even with the lowest divider (1)
1920 */
1921 data->fan_min[nr] = 1;
1922 new_div = 0; /* 1 == (1 << 0) */
1923 dev_warn(dev,
1924 "fan%u low limit %lu above maximum %u, set to maximum\n",
1925 nr + 1, val, data->fan_from_reg_min(1, 0));
1926 } else {
1927 /*
1928 * Automatically pick the best divider, i.e. the one such
1929 * that the min limit will correspond to a register value
1930 * in the 96..192 range
1931 */
1932 new_div = 0;
1933 while (reg > 192 && new_div < 7) {
1934 reg >>= 1;
1935 new_div++;
1936 }
1937 data->fan_min[nr] = reg;
1938 }
1939
1940write_div:
1941 /*
1942 * Write both the fan clock divider (if it changed) and the new
1943 * fan min (unconditionally)
1944 */
1945 if (new_div != data->fan_div[nr]) {
1946 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
1947 nr + 1, div_from_reg(data->fan_div[nr]),
1948 div_from_reg(new_div));
1949 data->fan_div[nr] = new_div;
1950 nct6775_write_fan_div_common(data, nr);
1951 /* Give the chip time to sample a new speed value */
1952 data->last_updated = jiffies;
1953 }
1954
1955write_min:
1956 nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
1957 mutex_unlock(&data->update_lock);
1958
1959 return count;
1960}
1961
1962static ssize_t
1963show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
1964{
1965 struct nct6775_data *data = nct6775_update_device(dev);
1966 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1967 int p = data->fan_pulses[sattr->index];
1968
1969 return sprintf(buf, "%d\n", p ? : 4);
1970}
1971
1972static ssize_t
1973store_fan_pulses(struct device *dev, struct device_attribute *attr,
1974 const char *buf, size_t count)
1975{
1976 struct nct6775_data *data = dev_get_drvdata(dev);
1977 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
1978 int nr = sattr->index;
1979 unsigned long val;
1980 int err;
1981 u8 reg;
1982
1983 err = kstrtoul(buf, 10, &val);
1984 if (err < 0)
1985 return err;
1986
1987 if (val > 4)
1988 return -EINVAL;
1989
1990 mutex_lock(&data->update_lock);
1991 data->fan_pulses[nr] = val & 3;
1992 reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]);
1993 reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
1994 reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
1995 nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
1996 mutex_unlock(&data->update_lock);
1997
1998 return count;
1999}
2000
2001static umode_t nct6775_fan_is_visible(struct kobject *kobj,
2002 struct attribute *attr, int index)
2003{
2004 struct device *dev = container_of(kobj, struct device, kobj);
2005 struct nct6775_data *data = dev_get_drvdata(dev);
2006 int fan = index / 6; /* fan index */
2007 int nr = index % 6; /* attribute index */
2008
2009 if (!(data->has_fan & (1 << fan)))
2010 return 0;
2011
2012 if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1)
2013 return 0;
2014 if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
2015 return 0;
2016 if (nr == 4 && !(data->has_fan_min & (1 << fan)))
2017 return 0;
2018 if (nr == 5 && data->kind != nct6775)
2019 return 0;
2020
2021 return attr->mode;
2022}
2023
2024SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
2025SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL,
2026 FAN_ALARM_BASE);
2027SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep,
2028 store_beep, FAN_ALARM_BASE);
2029SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses,
2030 store_fan_pulses, 0);
2031SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min,
2032 store_fan_min, 0);
2033SENSOR_TEMPLATE(fan_div, "fan%d_div", S_IRUGO, show_fan_div, NULL, 0);
2034
2035/*
2036 * nct6775_fan_is_visible uses the index into the following array
2037 * to determine if attributes should be created or not.
2038 * Any change in order or content must be matched.
2039 */
2040static struct sensor_device_template *nct6775_attributes_fan_template[] = {
2041 &sensor_dev_template_fan_input,
2042 &sensor_dev_template_fan_alarm, /* 1 */
2043 &sensor_dev_template_fan_beep, /* 2 */
2044 &sensor_dev_template_fan_pulses,
2045 &sensor_dev_template_fan_min, /* 4 */
2046 &sensor_dev_template_fan_div, /* 5 */
2047 NULL
2048};
2049
2050static const struct sensor_template_group nct6775_fan_template_group = {
2051 .templates = nct6775_attributes_fan_template,
2052 .is_visible = nct6775_fan_is_visible,
2053 .base = 1,
2054};
2055
2056static ssize_t
2057show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
2058{
2059 struct nct6775_data *data = nct6775_update_device(dev);
2060 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2061 int nr = sattr->index;
2062
2063 return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
2064}
2065
2066static ssize_t
2067show_temp(struct device *dev, struct device_attribute *attr, char *buf)
2068{
2069 struct nct6775_data *data = nct6775_update_device(dev);
2070 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2071 int nr = sattr->nr;
2072 int index = sattr->index;
2073
2074 return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
2075}
2076
2077static ssize_t
2078store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
2079 size_t count)
2080{
2081 struct nct6775_data *data = dev_get_drvdata(dev);
2082 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2083 int nr = sattr->nr;
2084 int index = sattr->index;
2085 int err;
2086 long val;
2087
2088 err = kstrtol(buf, 10, &val);
2089 if (err < 0)
2090 return err;
2091
2092 mutex_lock(&data->update_lock);
2093 data->temp[index][nr] = LM75_TEMP_TO_REG(val);
2094 nct6775_write_temp(data, data->reg_temp[index][nr],
2095 data->temp[index][nr]);
2096 mutex_unlock(&data->update_lock);
2097 return count;
2098}
2099
2100static ssize_t
2101show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
2102{
2103 struct nct6775_data *data = nct6775_update_device(dev);
2104 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2105
2106 return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
2107}
2108
2109static ssize_t
2110store_temp_offset(struct device *dev, struct device_attribute *attr,
2111 const char *buf, size_t count)
2112{
2113 struct nct6775_data *data = dev_get_drvdata(dev);
2114 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2115 int nr = sattr->index;
2116 long val;
2117 int err;
2118
2119 err = kstrtol(buf, 10, &val);
2120 if (err < 0)
2121 return err;
2122
2123 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
2124
2125 mutex_lock(&data->update_lock);
2126 data->temp_offset[nr] = val;
2127 nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
2128 mutex_unlock(&data->update_lock);
2129
2130 return count;
2131}
2132
2133static ssize_t
2134show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
2135{
2136 struct nct6775_data *data = nct6775_update_device(dev);
2137 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2138 int nr = sattr->index;
2139
2140 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
2141}
2142
2143static ssize_t
2144store_temp_type(struct device *dev, struct device_attribute *attr,
2145 const char *buf, size_t count)
2146{
2147 struct nct6775_data *data = nct6775_update_device(dev);
2148 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2149 int nr = sattr->index;
2150 unsigned long val;
2151 int err;
2152 u8 vbat, diode, vbit, dbit;
2153
2154 err = kstrtoul(buf, 10, &val);
2155 if (err < 0)
2156 return err;
2157
2158 if (val != 1 && val != 3 && val != 4)
2159 return -EINVAL;
2160
2161 mutex_lock(&data->update_lock);
2162
2163 data->temp_type[nr] = val;
2164 vbit = 0x02 << nr;
2165 dbit = data->DIODE_MASK << nr;
2166 vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit;
2167 diode = nct6775_read_value(data, data->REG_DIODE) & ~dbit;
2168 switch (val) {
2169 case 1: /* CPU diode (diode, current mode) */
2170 vbat |= vbit;
2171 diode |= dbit;
2172 break;
2173 case 3: /* diode, voltage mode */
2174 vbat |= dbit;
2175 break;
2176 case 4: /* thermistor */
2177 break;
2178 }
2179 nct6775_write_value(data, data->REG_VBAT, vbat);
2180 nct6775_write_value(data, data->REG_DIODE, diode);
2181
2182 mutex_unlock(&data->update_lock);
2183 return count;
2184}
2185
2186static umode_t nct6775_temp_is_visible(struct kobject *kobj,
2187 struct attribute *attr, int index)
2188{
2189 struct device *dev = container_of(kobj, struct device, kobj);
2190 struct nct6775_data *data = dev_get_drvdata(dev);
2191 int temp = index / 10; /* temp index */
2192 int nr = index % 10; /* attribute index */
2193
2194 if (!(data->have_temp & (1 << temp)))
2195 return 0;
2196
2197 if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
2198 return 0; /* alarm */
2199
2200 if (nr == 3 && find_temp_source(data, temp, data->num_temp_beeps) < 0)
2201 return 0; /* beep */
2202
2203 if (nr == 4 && !data->reg_temp[1][temp]) /* max */
2204 return 0;
2205
2206 if (nr == 5 && !data->reg_temp[2][temp]) /* max_hyst */
2207 return 0;
2208
2209 if (nr == 6 && !data->reg_temp[3][temp]) /* crit */
2210 return 0;
2211
2212 if (nr == 7 && !data->reg_temp[4][temp]) /* lcrit */
2213 return 0;
2214
2215 /* offset and type only apply to fixed sensors */
2216 if (nr > 7 && !(data->have_temp_fixed & (1 << temp)))
2217 return 0;
2218
2219 return attr->mode;
2220}
2221
2222SENSOR_TEMPLATE_2(temp_input, "temp%d_input", S_IRUGO, show_temp, NULL, 0, 0);
2223SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
2224SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO | S_IWUSR, show_temp,
2225 store_temp, 0, 1);
2226SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR,
2227 show_temp, store_temp, 0, 2);
2228SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp,
2229 store_temp, 0, 3);
2230SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp,
2231 store_temp, 0, 4);
2232SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR,
2233 show_temp_offset, store_temp_offset, 0);
2234SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type,
2235 store_temp_type, 0);
2236SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", S_IRUGO, show_temp_alarm, NULL, 0);
2237SENSOR_TEMPLATE(temp_beep, "temp%d_beep", S_IRUGO | S_IWUSR, show_temp_beep,
2238 store_temp_beep, 0);
2239
2240/*
2241 * nct6775_temp_is_visible uses the index into the following array
2242 * to determine if attributes should be created or not.
2243 * Any change in order or content must be matched.
2244 */
2245static struct sensor_device_template *nct6775_attributes_temp_template[] = {
2246 &sensor_dev_template_temp_input,
2247 &sensor_dev_template_temp_label,
2248 &sensor_dev_template_temp_alarm, /* 2 */
2249 &sensor_dev_template_temp_beep, /* 3 */
2250 &sensor_dev_template_temp_max, /* 4 */
2251 &sensor_dev_template_temp_max_hyst, /* 5 */
2252 &sensor_dev_template_temp_crit, /* 6 */
2253 &sensor_dev_template_temp_lcrit, /* 7 */
2254 &sensor_dev_template_temp_offset, /* 8 */
2255 &sensor_dev_template_temp_type, /* 9 */
2256 NULL
2257};
2258
2259static const struct sensor_template_group nct6775_temp_template_group = {
2260 .templates = nct6775_attributes_temp_template,
2261 .is_visible = nct6775_temp_is_visible,
2262 .base = 1,
2263};
2264
2265static ssize_t
2266show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
2267{
2268 struct nct6775_data *data = nct6775_update_device(dev);
2269 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2270
2271 return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
2272}
2273
2274static ssize_t
2275store_pwm_mode(struct device *dev, struct device_attribute *attr,
2276 const char *buf, size_t count)
2277{
2278 struct nct6775_data *data = dev_get_drvdata(dev);
2279 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2280 int nr = sattr->index;
2281 unsigned long val;
2282 int err;
2283 u8 reg;
2284
2285 err = kstrtoul(buf, 10, &val);
2286 if (err < 0)
2287 return err;
2288
2289 if (val > 1)
2290 return -EINVAL;
2291
2292 /* Setting DC mode is not supported for all chips/channels */
2293 if (data->REG_PWM_MODE[nr] == 0) {
2294 if (val)
2295 return -EINVAL;
2296 return count;
2297 }
2298
2299 mutex_lock(&data->update_lock);
2300 data->pwm_mode[nr] = val;
2301 reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
2302 reg &= ~data->PWM_MODE_MASK[nr];
2303 if (val)
2304 reg |= data->PWM_MODE_MASK[nr];
2305 nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
2306 mutex_unlock(&data->update_lock);
2307 return count;
2308}
2309
2310static ssize_t
2311show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2312{
2313 struct nct6775_data *data = nct6775_update_device(dev);
2314 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2315 int nr = sattr->nr;
2316 int index = sattr->index;
2317 int pwm;
2318
2319 /*
2320 * For automatic fan control modes, show current pwm readings.
2321 * Otherwise, show the configured value.
2322 */
2323 if (index == 0 && data->pwm_enable[nr] > manual)
2324 pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
2325 else
2326 pwm = data->pwm[index][nr];
2327
2328 return sprintf(buf, "%d\n", pwm);
2329}
2330
2331static ssize_t
2332store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
2333 size_t count)
2334{
2335 struct nct6775_data *data = dev_get_drvdata(dev);
2336 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2337 int nr = sattr->nr;
2338 int index = sattr->index;
2339 unsigned long val;
2340 int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
2341 int maxval[7]
2342 = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
2343 int err;
2344 u8 reg;
2345
2346 err = kstrtoul(buf, 10, &val);
2347 if (err < 0)
2348 return err;
2349 val = clamp_val(val, minval[index], maxval[index]);
2350
2351 mutex_lock(&data->update_lock);
2352 data->pwm[index][nr] = val;
2353 nct6775_write_value(data, data->REG_PWM[index][nr], val);
2354 if (index == 2) { /* floor: disable if val == 0 */
2355 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2356 reg &= 0x7f;
2357 if (val)
2358 reg |= 0x80;
2359 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2360 }
2361 mutex_unlock(&data->update_lock);
2362 return count;
2363}
2364
2365/* Returns 0 if OK, -EINVAL otherwise */
2366static int check_trip_points(struct nct6775_data *data, int nr)
2367{
2368 int i;
2369
2370 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2371 if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
2372 return -EINVAL;
2373 }
2374 for (i = 0; i < data->auto_pwm_num - 1; i++) {
2375 if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
2376 return -EINVAL;
2377 }
2378 /* validate critical temperature and pwm if enabled (pwm > 0) */
2379 if (data->auto_pwm[nr][data->auto_pwm_num]) {
2380 if (data->auto_temp[nr][data->auto_pwm_num - 1] >
2381 data->auto_temp[nr][data->auto_pwm_num] ||
2382 data->auto_pwm[nr][data->auto_pwm_num - 1] >
2383 data->auto_pwm[nr][data->auto_pwm_num])
2384 return -EINVAL;
2385 }
2386 return 0;
2387}
2388
2389static void pwm_update_registers(struct nct6775_data *data, int nr)
2390{
2391 u8 reg;
2392
2393 switch (data->pwm_enable[nr]) {
2394 case off:
2395 case manual:
2396 break;
2397 case speed_cruise:
2398 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2399 reg = (reg & ~data->tolerance_mask) |
2400 (data->target_speed_tolerance[nr] & data->tolerance_mask);
2401 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2402 nct6775_write_value(data, data->REG_TARGET[nr],
2403 data->target_speed[nr] & 0xff);
2404 if (data->REG_TOLERANCE_H) {
2405 reg = (data->target_speed[nr] >> 8) & 0x0f;
2406 reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
2407 nct6775_write_value(data,
2408 data->REG_TOLERANCE_H[nr],
2409 reg);
2410 }
2411 break;
2412 case thermal_cruise:
2413 nct6775_write_value(data, data->REG_TARGET[nr],
2414 data->target_temp[nr]);
2415 /* intentional */
2416 default:
2417 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2418 reg = (reg & ~data->tolerance_mask) |
2419 data->temp_tolerance[0][nr];
2420 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2421 break;
2422 }
2423}
2424
2425static ssize_t
2426show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
2427{
2428 struct nct6775_data *data = nct6775_update_device(dev);
2429 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2430
2431 return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
2432}
2433
2434static ssize_t
2435store_pwm_enable(struct device *dev, struct device_attribute *attr,
2436 const char *buf, size_t count)
2437{
2438 struct nct6775_data *data = dev_get_drvdata(dev);
2439 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2440 int nr = sattr->index;
2441 unsigned long val;
2442 int err;
2443 u16 reg;
2444
2445 err = kstrtoul(buf, 10, &val);
2446 if (err < 0)
2447 return err;
2448
2449 if (val > sf4)
2450 return -EINVAL;
2451
2452 if (val == sf3 && data->kind != nct6775)
2453 return -EINVAL;
2454
2455 if (val == sf4 && check_trip_points(data, nr)) {
2456 dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
2457 dev_err(dev, "Adjust trip points and try again\n");
2458 return -EINVAL;
2459 }
2460
2461 mutex_lock(&data->update_lock);
2462 data->pwm_enable[nr] = val;
2463 if (val == off) {
2464 /*
2465 * turn off pwm control: select manual mode, set pwm to maximum
2466 */
2467 data->pwm[0][nr] = 255;
2468 nct6775_write_value(data, data->REG_PWM[0][nr], 255);
2469 }
2470 pwm_update_registers(data, nr);
2471 reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
2472 reg &= 0x0f;
2473 reg |= pwm_enable_to_reg(val) << 4;
2474 nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
2475 mutex_unlock(&data->update_lock);
2476 return count;
2477}
2478
2479static ssize_t
2480show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)
2481{
2482 int i, sel = 0;
2483
2484 for (i = 0; i < NUM_TEMP; i++) {
2485 if (!(data->have_temp & (1 << i)))
2486 continue;
2487 if (src == data->temp_src[i]) {
2488 sel = i + 1;
2489 break;
2490 }
2491 }
2492
2493 return sprintf(buf, "%d\n", sel);
2494}
2495
2496static ssize_t
2497show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
2498{
2499 struct nct6775_data *data = nct6775_update_device(dev);
2500 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2501 int index = sattr->index;
2502
2503 return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]);
2504}
2505
2506static ssize_t
2507store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
2508 const char *buf, size_t count)
2509{
2510 struct nct6775_data *data = nct6775_update_device(dev);
2511 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2512 int nr = sattr->index;
2513 unsigned long val;
2514 int err, reg, src;
2515
2516 err = kstrtoul(buf, 10, &val);
2517 if (err < 0)
2518 return err;
2519 if (val == 0 || val > NUM_TEMP)
2520 return -EINVAL;
2521 if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1])
2522 return -EINVAL;
2523
2524 mutex_lock(&data->update_lock);
2525 src = data->temp_src[val - 1];
2526 data->pwm_temp_sel[nr] = src;
2527 reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
2528 reg &= 0xe0;
2529 reg |= src;
2530 nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
2531 mutex_unlock(&data->update_lock);
2532
2533 return count;
2534}
2535
2536static ssize_t
2537show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2538 char *buf)
2539{
2540 struct nct6775_data *data = nct6775_update_device(dev);
2541 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2542 int index = sattr->index;
2543
2544 return show_pwm_temp_sel_common(data, buf,
2545 data->pwm_weight_temp_sel[index]);
2546}
2547
2548static ssize_t
2549store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
2550 const char *buf, size_t count)
2551{
2552 struct nct6775_data *data = nct6775_update_device(dev);
2553 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2554 int nr = sattr->index;
2555 unsigned long val;
2556 int err, reg, src;
2557
2558 err = kstrtoul(buf, 10, &val);
2559 if (err < 0)
2560 return err;
2561 if (val > NUM_TEMP)
2562 return -EINVAL;
2563 if (val && (!(data->have_temp & (1 << (val - 1))) ||
2564 !data->temp_src[val - 1]))
2565 return -EINVAL;
2566
2567 mutex_lock(&data->update_lock);
2568 if (val) {
2569 src = data->temp_src[val - 1];
2570 data->pwm_weight_temp_sel[nr] = src;
2571 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2572 reg &= 0xe0;
2573 reg |= (src | 0x80);
2574 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2575 } else {
2576 data->pwm_weight_temp_sel[nr] = 0;
2577 reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
2578 reg &= 0x7f;
2579 nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
2580 }
2581 mutex_unlock(&data->update_lock);
2582
2583 return count;
2584}
2585
2586static ssize_t
2587show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
2588{
2589 struct nct6775_data *data = nct6775_update_device(dev);
2590 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2591
2592 return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000);
2593}
2594
2595static ssize_t
2596store_target_temp(struct device *dev, struct device_attribute *attr,
2597 const char *buf, size_t count)
2598{
2599 struct nct6775_data *data = dev_get_drvdata(dev);
2600 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2601 int nr = sattr->index;
2602 unsigned long val;
2603 int err;
2604
2605 err = kstrtoul(buf, 10, &val);
2606 if (err < 0)
2607 return err;
2608
2609 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0,
2610 data->target_temp_mask);
2611
2612 mutex_lock(&data->update_lock);
2613 data->target_temp[nr] = val;
2614 pwm_update_registers(data, nr);
2615 mutex_unlock(&data->update_lock);
2616 return count;
2617}
2618
2619static ssize_t
2620show_target_speed(struct device *dev, struct device_attribute *attr, char *buf)
2621{
2622 struct nct6775_data *data = nct6775_update_device(dev);
2623 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2624 int nr = sattr->index;
2625
2626 return sprintf(buf, "%d\n",
2627 fan_from_reg16(data->target_speed[nr],
2628 data->fan_div[nr]));
2629}
2630
2631static ssize_t
2632store_target_speed(struct device *dev, struct device_attribute *attr,
2633 const char *buf, size_t count)
2634{
2635 struct nct6775_data *data = dev_get_drvdata(dev);
2636 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2637 int nr = sattr->index;
2638 unsigned long val;
2639 int err;
2640 u16 speed;
2641
2642 err = kstrtoul(buf, 10, &val);
2643 if (err < 0)
2644 return err;
2645
2646 val = clamp_val(val, 0, 1350000U);
2647 speed = fan_to_reg(val, data->fan_div[nr]);
2648
2649 mutex_lock(&data->update_lock);
2650 data->target_speed[nr] = speed;
2651 pwm_update_registers(data, nr);
2652 mutex_unlock(&data->update_lock);
2653 return count;
2654}
2655
2656static ssize_t
2657show_temp_tolerance(struct device *dev, struct device_attribute *attr,
2658 char *buf)
2659{
2660 struct nct6775_data *data = nct6775_update_device(dev);
2661 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2662 int nr = sattr->nr;
2663 int index = sattr->index;
2664
2665 return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000);
2666}
2667
2668static ssize_t
2669store_temp_tolerance(struct device *dev, struct device_attribute *attr,
2670 const char *buf, size_t count)
2671{
2672 struct nct6775_data *data = dev_get_drvdata(dev);
2673 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2674 int nr = sattr->nr;
2675 int index = sattr->index;
2676 unsigned long val;
2677 int err;
2678
2679 err = kstrtoul(buf, 10, &val);
2680 if (err < 0)
2681 return err;
2682
2683 /* Limit tolerance as needed */
2684 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask);
2685
2686 mutex_lock(&data->update_lock);
2687 data->temp_tolerance[index][nr] = val;
2688 if (index)
2689 pwm_update_registers(data, nr);
2690 else
2691 nct6775_write_value(data,
2692 data->REG_CRITICAL_TEMP_TOLERANCE[nr],
2693 val);
2694 mutex_unlock(&data->update_lock);
2695 return count;
2696}
2697
2698/*
2699 * Fan speed tolerance is a tricky beast, since the associated register is
2700 * a tick counter, but the value is reported and configured as rpm.
2701 * Compute resulting low and high rpm values and report the difference.
2702 */
2703static ssize_t
2704show_speed_tolerance(struct device *dev, struct device_attribute *attr,
2705 char *buf)
2706{
2707 struct nct6775_data *data = nct6775_update_device(dev);
2708 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2709 int nr = sattr->index;
2710 int low = data->target_speed[nr] - data->target_speed_tolerance[nr];
2711 int high = data->target_speed[nr] + data->target_speed_tolerance[nr];
2712 int tolerance;
2713
2714 if (low <= 0)
2715 low = 1;
2716 if (high > 0xffff)
2717 high = 0xffff;
2718 if (high < low)
2719 high = low;
2720
2721 tolerance = (fan_from_reg16(low, data->fan_div[nr])
2722 - fan_from_reg16(high, data->fan_div[nr])) / 2;
2723
2724 return sprintf(buf, "%d\n", tolerance);
2725}
2726
2727static ssize_t
2728store_speed_tolerance(struct device *dev, struct device_attribute *attr,
2729 const char *buf, size_t count)
2730{
2731 struct nct6775_data *data = dev_get_drvdata(dev);
2732 struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
2733 int nr = sattr->index;
2734 unsigned long val;
2735 int err;
2736 int low, high;
2737
2738 err = kstrtoul(buf, 10, &val);
2739 if (err < 0)
2740 return err;
2741
2742 high = fan_from_reg16(data->target_speed[nr],
2743 data->fan_div[nr]) + val;
2744 low = fan_from_reg16(data->target_speed[nr],
2745 data->fan_div[nr]) - val;
2746 if (low <= 0)
2747 low = 1;
2748 if (high < low)
2749 high = low;
2750
2751 val = (fan_to_reg(low, data->fan_div[nr]) -
2752 fan_to_reg(high, data->fan_div[nr])) / 2;
2753
2754 /* Limit tolerance as needed */
2755 val = clamp_val(val, 0, data->speed_tolerance_limit);
2756
2757 mutex_lock(&data->update_lock);
2758 data->target_speed_tolerance[nr] = val;
2759 pwm_update_registers(data, nr);
2760 mutex_unlock(&data->update_lock);
2761 return count;
2762}
2763
2764SENSOR_TEMPLATE_2(pwm, "pwm%d", S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
2765SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", S_IWUSR | S_IRUGO, show_pwm_mode,
2766 store_pwm_mode, 0);
2767SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", S_IWUSR | S_IRUGO, show_pwm_enable,
2768 store_pwm_enable, 0);
2769SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", S_IWUSR | S_IRUGO,
2770 show_pwm_temp_sel, store_pwm_temp_sel, 0);
2771SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", S_IWUSR | S_IRUGO,
2772 show_target_temp, store_target_temp, 0);
2773SENSOR_TEMPLATE(fan_target, "fan%d_target", S_IWUSR | S_IRUGO,
2774 show_target_speed, store_target_speed, 0);
2775SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", S_IWUSR | S_IRUGO,
2776 show_speed_tolerance, store_speed_tolerance, 0);
2777
2778/* Smart Fan registers */
2779
2780static ssize_t
2781show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
2782{
2783 struct nct6775_data *data = nct6775_update_device(dev);
2784 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2785 int nr = sattr->nr;
2786 int index = sattr->index;
2787
2788 return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
2789}
2790
2791static ssize_t
2792store_weight_temp(struct device *dev, struct device_attribute *attr,
2793 const char *buf, size_t count)
2794{
2795 struct nct6775_data *data = dev_get_drvdata(dev);
2796 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2797 int nr = sattr->nr;
2798 int index = sattr->index;
2799 unsigned long val;
2800 int err;
2801
2802 err = kstrtoul(buf, 10, &val);
2803 if (err < 0)
2804 return err;
2805
2806 val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
2807
2808 mutex_lock(&data->update_lock);
2809 data->weight_temp[index][nr] = val;
2810 nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
2811 mutex_unlock(&data->update_lock);
2812 return count;
2813}
2814
2815SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", S_IWUSR | S_IRUGO,
2816 show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0);
2817SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step",
2818 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 0);
2819SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol",
2820 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 1);
2821SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base",
2822 S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 2);
2823SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step",
2824 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 5);
2825SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base",
2826 S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 6);
2827
2828static ssize_t
2829show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
2830{
2831 struct nct6775_data *data = nct6775_update_device(dev);
2832 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2833 int nr = sattr->nr;
2834 int index = sattr->index;
2835
2836 return sprintf(buf, "%d\n",
2837 step_time_from_reg(data->fan_time[index][nr],
2838 data->pwm_mode[nr]));
2839}
2840
2841static ssize_t
2842store_fan_time(struct device *dev, struct device_attribute *attr,
2843 const char *buf, size_t count)
2844{
2845 struct nct6775_data *data = dev_get_drvdata(dev);
2846 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2847 int nr = sattr->nr;
2848 int index = sattr->index;
2849 unsigned long val;
2850 int err;
2851
2852 err = kstrtoul(buf, 10, &val);
2853 if (err < 0)
2854 return err;
2855
2856 val = step_time_to_reg(val, data->pwm_mode[nr]);
2857 mutex_lock(&data->update_lock);
2858 data->fan_time[index][nr] = val;
2859 nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
2860 mutex_unlock(&data->update_lock);
2861 return count;
2862}
2863
2864static ssize_t
2865show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
2866{
2867 struct nct6775_data *data = nct6775_update_device(dev);
2868 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2869
2870 return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
2871}
2872
2873static ssize_t
2874store_auto_pwm(struct device *dev, struct device_attribute *attr,
2875 const char *buf, size_t count)
2876{
2877 struct nct6775_data *data = dev_get_drvdata(dev);
2878 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2879 int nr = sattr->nr;
2880 int point = sattr->index;
2881 unsigned long val;
2882 int err;
2883 u8 reg;
2884
2885 err = kstrtoul(buf, 10, &val);
2886 if (err < 0)
2887 return err;
2888 if (val > 255)
2889 return -EINVAL;
2890
2891 if (point == data->auto_pwm_num) {
2892 if (data->kind != nct6775 && !val)
2893 return -EINVAL;
2894 if (data->kind != nct6779 && val)
2895 val = 0xff;
2896 }
2897
2898 mutex_lock(&data->update_lock);
2899 data->auto_pwm[nr][point] = val;
2900 if (point < data->auto_pwm_num) {
2901 nct6775_write_value(data,
2902 NCT6775_AUTO_PWM(data, nr, point),
2903 data->auto_pwm[nr][point]);
2904 } else {
2905 switch (data->kind) {
2906 case nct6775:
2907 /* disable if needed (pwm == 0) */
2908 reg = nct6775_read_value(data,
2909 NCT6775_REG_CRITICAL_ENAB[nr]);
2910 if (val)
2911 reg |= 0x02;
2912 else
2913 reg &= ~0x02;
2914 nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
2915 reg);
2916 break;
2917 case nct6776:
2918 break; /* always enabled, nothing to do */
2919 case nct6106:
2920 case nct6779:
2921 case nct6791:
2922 case nct6792:
2923 case nct6793:
2924 nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
2925 val);
2926 reg = nct6775_read_value(data,
2927 data->REG_CRITICAL_PWM_ENABLE[nr]);
2928 if (val == 255)
2929 reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
2930 else
2931 reg |= data->CRITICAL_PWM_ENABLE_MASK;
2932 nct6775_write_value(data,
2933 data->REG_CRITICAL_PWM_ENABLE[nr],
2934 reg);
2935 break;
2936 }
2937 }
2938 mutex_unlock(&data->update_lock);
2939 return count;
2940}
2941
2942static ssize_t
2943show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
2944{
2945 struct nct6775_data *data = nct6775_update_device(dev);
2946 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2947 int nr = sattr->nr;
2948 int point = sattr->index;
2949
2950 /*
2951 * We don't know for sure if the temperature is signed or unsigned.
2952 * Assume it is unsigned.
2953 */
2954 return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
2955}
2956
2957static ssize_t
2958store_auto_temp(struct device *dev, struct device_attribute *attr,
2959 const char *buf, size_t count)
2960{
2961 struct nct6775_data *data = dev_get_drvdata(dev);
2962 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
2963 int nr = sattr->nr;
2964 int point = sattr->index;
2965 unsigned long val;
2966 int err;
2967
2968 err = kstrtoul(buf, 10, &val);
2969 if (err)
2970 return err;
2971 if (val > 255000)
2972 return -EINVAL;
2973
2974 mutex_lock(&data->update_lock);
2975 data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
2976 if (point < data->auto_pwm_num) {
2977 nct6775_write_value(data,
2978 NCT6775_AUTO_TEMP(data, nr, point),
2979 data->auto_temp[nr][point]);
2980 } else {
2981 nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
2982 data->auto_temp[nr][point]);
2983 }
2984 mutex_unlock(&data->update_lock);
2985 return count;
2986}
2987
2988static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
2989 struct attribute *attr, int index)
2990{
2991 struct device *dev = container_of(kobj, struct device, kobj);
2992 struct nct6775_data *data = dev_get_drvdata(dev);
2993 int pwm = index / 36; /* pwm index */
2994 int nr = index % 36; /* attribute index */
2995
2996 if (!(data->has_pwm & (1 << pwm)))
2997 return 0;
2998
2999 if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
3000 if (!data->REG_WEIGHT_TEMP_SEL[pwm])
3001 return 0;
3002 if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
3003 return 0;
3004 if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
3005 return 0;
3006 if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */
3007 return 0;
3008
3009 if (nr >= 22 && nr <= 35) { /* auto point */
3010 int api = (nr - 22) / 2; /* auto point index */
3011
3012 if (api > data->auto_pwm_num)
3013 return 0;
3014 }
3015 return attr->mode;
3016}
3017
3018SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", S_IWUSR | S_IRUGO,
3019 show_fan_time, store_fan_time, 0, 0);
3020SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", S_IWUSR | S_IRUGO,
3021 show_fan_time, store_fan_time, 0, 1);
3022SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", S_IWUSR | S_IRUGO,
3023 show_fan_time, store_fan_time, 0, 2);
3024SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", S_IWUSR | S_IRUGO, show_pwm,
3025 store_pwm, 0, 1);
3026SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", S_IWUSR | S_IRUGO, show_pwm,
3027 store_pwm, 0, 2);
3028SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", S_IWUSR | S_IRUGO,
3029 show_temp_tolerance, store_temp_tolerance, 0, 0);
3030SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance",
3031 S_IWUSR | S_IRUGO, show_temp_tolerance, store_temp_tolerance,
3032 0, 1);
3033
3034SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", S_IWUSR | S_IRUGO, show_pwm, store_pwm,
3035 0, 3);
3036
3037SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", S_IWUSR | S_IRUGO, show_pwm,
3038 store_pwm, 0, 4);
3039
3040SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm",
3041 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 0);
3042SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp",
3043 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 0);
3044
3045SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm",
3046 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 1);
3047SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp",
3048 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 1);
3049
3050SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm",
3051 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 2);
3052SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp",
3053 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 2);
3054
3055SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm",
3056 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 3);
3057SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp",
3058 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 3);
3059
3060SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm",
3061 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 4);
3062SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp",
3063 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 4);
3064
3065SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm",
3066 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 5);
3067SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp",
3068 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 5);
3069
3070SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm",
3071 S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 6);
3072SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp",
3073 S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 6);
3074
3075/*
3076 * nct6775_pwm_is_visible uses the index into the following array
3077 * to determine if attributes should be created or not.
3078 * Any change in order or content must be matched.
3079 */
3080static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
3081 &sensor_dev_template_pwm,
3082 &sensor_dev_template_pwm_mode,
3083 &sensor_dev_template_pwm_enable,
3084 &sensor_dev_template_pwm_temp_sel,
3085 &sensor_dev_template_pwm_temp_tolerance,
3086 &sensor_dev_template_pwm_crit_temp_tolerance,
3087 &sensor_dev_template_pwm_target_temp,
3088 &sensor_dev_template_fan_target,
3089 &sensor_dev_template_fan_tolerance,
3090 &sensor_dev_template_pwm_stop_time,
3091 &sensor_dev_template_pwm_step_up_time,
3092 &sensor_dev_template_pwm_step_down_time,
3093 &sensor_dev_template_pwm_start,
3094 &sensor_dev_template_pwm_floor,
3095 &sensor_dev_template_pwm_weight_temp_sel, /* 14 */
3096 &sensor_dev_template_pwm_weight_temp_step,
3097 &sensor_dev_template_pwm_weight_temp_step_tol,
3098 &sensor_dev_template_pwm_weight_temp_step_base,
3099 &sensor_dev_template_pwm_weight_duty_step, /* 18 */
3100 &sensor_dev_template_pwm_max, /* 19 */
3101 &sensor_dev_template_pwm_step, /* 20 */
3102 &sensor_dev_template_pwm_weight_duty_base, /* 21 */
3103 &sensor_dev_template_pwm_auto_point1_pwm, /* 22 */
3104 &sensor_dev_template_pwm_auto_point1_temp,
3105 &sensor_dev_template_pwm_auto_point2_pwm,
3106 &sensor_dev_template_pwm_auto_point2_temp,
3107 &sensor_dev_template_pwm_auto_point3_pwm,
3108 &sensor_dev_template_pwm_auto_point3_temp,
3109 &sensor_dev_template_pwm_auto_point4_pwm,
3110 &sensor_dev_template_pwm_auto_point4_temp,
3111 &sensor_dev_template_pwm_auto_point5_pwm,
3112 &sensor_dev_template_pwm_auto_point5_temp,
3113 &sensor_dev_template_pwm_auto_point6_pwm,
3114 &sensor_dev_template_pwm_auto_point6_temp,
3115 &sensor_dev_template_pwm_auto_point7_pwm,
3116 &sensor_dev_template_pwm_auto_point7_temp, /* 35 */
3117
3118 NULL
3119};
3120
3121static const struct sensor_template_group nct6775_pwm_template_group = {
3122 .templates = nct6775_attributes_pwm_template,
3123 .is_visible = nct6775_pwm_is_visible,
3124 .base = 1,
3125};
3126
3127static ssize_t
3128show_vid(struct device *dev, struct device_attribute *attr, char *buf)
3129{
3130 struct nct6775_data *data = dev_get_drvdata(dev);
3131
3132 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
3133}
3134
3135static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
3136
3137/* Case open detection */
3138
3139static ssize_t
3140clear_caseopen(struct device *dev, struct device_attribute *attr,
3141 const char *buf, size_t count)
3142{
3143 struct nct6775_data *data = dev_get_drvdata(dev);
3144 int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
3145 unsigned long val;
3146 u8 reg;
3147 int ret;
3148
3149 if (kstrtoul(buf, 10, &val) || val != 0)
3150 return -EINVAL;
3151
3152 mutex_lock(&data->update_lock);
3153
3154 /*
3155 * Use CR registers to clear caseopen status.
3156 * The CR registers are the same for all chips, and not all chips
3157 * support clearing the caseopen status through "regular" registers.
3158 */
3159 ret = superio_enter(data->sioreg);
3160 if (ret) {
3161 count = ret;
3162 goto error;
3163 }
3164
3165 superio_select(data->sioreg, NCT6775_LD_ACPI);
3166 reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
3167 reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3168 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3169 reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
3170 superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
3171 superio_exit(data->sioreg);
3172
3173 data->valid = false; /* Force cache refresh */
3174error:
3175 mutex_unlock(&data->update_lock);
3176 return count;
3177}
3178
3179static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
3180 clear_caseopen, INTRUSION_ALARM_BASE);
3181static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
3182 clear_caseopen, INTRUSION_ALARM_BASE + 1);
3183static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep,
3184 store_beep, INTRUSION_ALARM_BASE);
3185static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep,
3186 store_beep, INTRUSION_ALARM_BASE + 1);
3187static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep,
3188 store_beep, BEEP_ENABLE_BASE);
3189
3190static umode_t nct6775_other_is_visible(struct kobject *kobj,
3191 struct attribute *attr, int index)
3192{
3193 struct device *dev = container_of(kobj, struct device, kobj);
3194 struct nct6775_data *data = dev_get_drvdata(dev);
3195
3196 if (index == 0 && !data->have_vid)
3197 return 0;
3198
3199 if (index == 1 || index == 2) {
3200 if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
3201 return 0;
3202 }
3203
3204 if (index == 3 || index == 4) {
3205 if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
3206 return 0;
3207 }
3208
3209 return attr->mode;
3210}
3211
3212/*
3213 * nct6775_other_is_visible uses the index into the following array
3214 * to determine if attributes should be created or not.
3215 * Any change in order or content must be matched.
3216 */
3217static struct attribute *nct6775_attributes_other[] = {
3218 &dev_attr_cpu0_vid.attr, /* 0 */
3219 &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
3220 &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
3221 &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
3222 &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
3223 &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
3224
3225 NULL
3226};
3227
3228static const struct attribute_group nct6775_group_other = {
3229 .attrs = nct6775_attributes_other,
3230 .is_visible = nct6775_other_is_visible,
3231};
3232
3233static inline void nct6775_init_device(struct nct6775_data *data)
3234{
3235 int i;
3236 u8 tmp, diode;
3237
3238 /* Start monitoring if needed */
3239 if (data->REG_CONFIG) {
3240 tmp = nct6775_read_value(data, data->REG_CONFIG);
3241 if (!(tmp & 0x01))
3242 nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
3243 }
3244
3245 /* Enable temperature sensors if needed */
3246 for (i = 0; i < NUM_TEMP; i++) {
3247 if (!(data->have_temp & (1 << i)))
3248 continue;
3249 if (!data->reg_temp_config[i])
3250 continue;
3251 tmp = nct6775_read_value(data, data->reg_temp_config[i]);
3252 if (tmp & 0x01)
3253 nct6775_write_value(data, data->reg_temp_config[i],
3254 tmp & 0xfe);
3255 }
3256
3257 /* Enable VBAT monitoring if needed */
3258 tmp = nct6775_read_value(data, data->REG_VBAT);
3259 if (!(tmp & 0x01))
3260 nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
3261
3262 diode = nct6775_read_value(data, data->REG_DIODE);
3263
3264 for (i = 0; i < data->temp_fixed_num; i++) {
3265 if (!(data->have_temp_fixed & (1 << i)))
3266 continue;
3267 if ((tmp & (data->DIODE_MASK << i))) /* diode */
3268 data->temp_type[i]
3269 = 3 - ((diode >> i) & data->DIODE_MASK);
3270 else /* thermistor */
3271 data->temp_type[i] = 4;
3272 }
3273}
3274
3275static void
3276nct6775_check_fan_inputs(struct nct6775_data *data)
3277{
3278 bool fan3pin, fan4pin, fan4min, fan5pin, fan6pin;
3279 bool pwm3pin, pwm4pin, pwm5pin, pwm6pin;
3280 int sioreg = data->sioreg;
3281 int regval;
3282
3283 /* Store SIO_REG_ENABLE for use during resume */
3284 superio_select(sioreg, NCT6775_LD_HWM);
3285 data->sio_reg_enable = superio_inb(sioreg, SIO_REG_ENABLE);
3286
3287 /* fan4 and fan5 share some pins with the GPIO and serial flash */
3288 if (data->kind == nct6775) {
3289 regval = superio_inb(sioreg, 0x2c);
3290
3291 fan3pin = regval & (1 << 6);
3292 pwm3pin = regval & (1 << 7);
3293
3294 /* On NCT6775, fan4 shares pins with the fdc interface */
3295 fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
3296 fan4min = false;
3297 fan5pin = false;
3298 fan6pin = false;
3299 pwm4pin = false;
3300 pwm5pin = false;
3301 pwm6pin = false;
3302 } else if (data->kind == nct6776) {
3303 bool gpok = superio_inb(sioreg, 0x27) & 0x80;
3304 const char *board_vendor, *board_name;
3305
3306 board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
3307 board_name = dmi_get_system_info(DMI_BOARD_NAME);
3308
3309 if (board_name && board_vendor &&
3310 !strcmp(board_vendor, "ASRock")) {
3311 /*
3312 * Auxiliary fan monitoring is not enabled on ASRock
3313 * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
3314 * Observed with BIOS version 2.00.
3315 */
3316 if (!strcmp(board_name, "Z77 Pro4-M")) {
3317 if ((data->sio_reg_enable & 0xe0) != 0xe0) {
3318 data->sio_reg_enable |= 0xe0;
3319 superio_outb(sioreg, SIO_REG_ENABLE,
3320 data->sio_reg_enable);
3321 }
3322 }
3323 }
3324
3325 if (data->sio_reg_enable & 0x80)
3326 fan3pin = gpok;
3327 else
3328 fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
3329
3330 if (data->sio_reg_enable & 0x40)
3331 fan4pin = gpok;
3332 else
3333 fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
3334
3335 if (data->sio_reg_enable & 0x20)
3336 fan5pin = gpok;
3337 else
3338 fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
3339
3340 fan4min = fan4pin;
3341 fan6pin = false;
3342 pwm3pin = fan3pin;
3343 pwm4pin = false;
3344 pwm5pin = false;
3345 pwm6pin = false;
3346 } else if (data->kind == nct6106) {
3347 regval = superio_inb(sioreg, 0x24);
3348 fan3pin = !(regval & 0x80);
3349 pwm3pin = regval & 0x08;
3350
3351 fan4pin = false;
3352 fan4min = false;
3353 fan5pin = false;
3354 fan6pin = false;
3355 pwm4pin = false;
3356 pwm5pin = false;
3357 pwm6pin = false;
3358 } else { /* NCT6779D, NCT6791D, NCT6792D, or NCT6793D */
3359 regval = superio_inb(sioreg, 0x1c);
3360
3361 fan3pin = !(regval & (1 << 5));
3362 fan4pin = !(regval & (1 << 6));
3363 fan5pin = !(regval & (1 << 7));
3364
3365 pwm3pin = !(regval & (1 << 0));
3366 pwm4pin = !(regval & (1 << 1));
3367 pwm5pin = !(regval & (1 << 2));
3368
3369 fan4min = fan4pin;
3370
3371 if (data->kind == nct6791 || data->kind == nct6792 ||
3372 data->kind == nct6793) {
3373 regval = superio_inb(sioreg, 0x2d);
3374 fan6pin = (regval & (1 << 1));
3375 pwm6pin = (regval & (1 << 0));
3376 } else { /* NCT6779D */
3377 fan6pin = false;
3378 pwm6pin = false;
3379 }
3380 }
3381
3382 /* fan 1 and 2 (0x03) are always present */
3383 data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
3384 (fan5pin << 4) | (fan6pin << 5);
3385 data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
3386 (fan5pin << 4);
3387 data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
3388 (pwm5pin << 4) | (pwm6pin << 5);
3389}
3390
3391static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
3392 int *available, int *mask)
3393{
3394 int i;
3395 u8 src;
3396
3397 for (i = 0; i < data->pwm_num && *available; i++) {
3398 int index;
3399
3400 if (!regp[i])
3401 continue;
3402 src = nct6775_read_value(data, regp[i]);
3403 src &= 0x1f;
3404 if (!src || (*mask & (1 << src)))
3405 continue;
3406 if (src >= data->temp_label_num ||
3407 !strlen(data->temp_label[src]))
3408 continue;
3409
3410 index = __ffs(*available);
3411 nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
3412 *available &= ~(1 << index);
3413 *mask |= 1 << src;
3414 }
3415}
3416
3417static int nct6775_probe(struct platform_device *pdev)
3418{
3419 struct device *dev = &pdev->dev;
3420 struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
3421 struct nct6775_data *data;
3422 struct resource *res;
3423 int i, s, err = 0;
3424 int src, mask, available;
3425 const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
3426 const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
3427 const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
3428 int num_reg_temp, num_reg_temp_mon;
3429 u8 cr2a;
3430 struct attribute_group *group;
3431 struct device *hwmon_dev;
3432 int num_attr_groups = 0;
3433
3434 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
3435 if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
3436 DRVNAME))
3437 return -EBUSY;
3438
3439 data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
3440 GFP_KERNEL);
3441 if (!data)
3442 return -ENOMEM;
3443
3444 data->kind = sio_data->kind;
3445 data->sioreg = sio_data->sioreg;
3446 data->addr = res->start;
3447 mutex_init(&data->update_lock);
3448 data->name = nct6775_device_names[data->kind];
3449 data->bank = 0xff; /* Force initial bank selection */
3450 platform_set_drvdata(pdev, data);
3451
3452 switch (data->kind) {
3453 case nct6106:
3454 data->in_num = 9;
3455 data->pwm_num = 3;
3456 data->auto_pwm_num = 4;
3457 data->temp_fixed_num = 3;
3458 data->num_temp_alarms = 6;
3459 data->num_temp_beeps = 6;
3460
3461 data->fan_from_reg = fan_from_reg13;
3462 data->fan_from_reg_min = fan_from_reg13;
3463
3464 data->temp_label = nct6776_temp_label;
3465 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3466
3467 data->REG_VBAT = NCT6106_REG_VBAT;
3468 data->REG_DIODE = NCT6106_REG_DIODE;
3469 data->DIODE_MASK = NCT6106_DIODE_MASK;
3470 data->REG_VIN = NCT6106_REG_IN;
3471 data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
3472 data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
3473 data->REG_TARGET = NCT6106_REG_TARGET;
3474 data->REG_FAN = NCT6106_REG_FAN;
3475 data->REG_FAN_MODE = NCT6106_REG_FAN_MODE;
3476 data->REG_FAN_MIN = NCT6106_REG_FAN_MIN;
3477 data->REG_FAN_PULSES = NCT6106_REG_FAN_PULSES;
3478 data->FAN_PULSE_SHIFT = NCT6106_FAN_PULSE_SHIFT;
3479 data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME;
3480 data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME;
3481 data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME;
3482 data->REG_PWM[0] = NCT6106_REG_PWM;
3483 data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT;
3484 data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT;
3485 data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
3486 data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
3487 data->REG_PWM_READ = NCT6106_REG_PWM_READ;
3488 data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
3489 data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
3490 data->REG_AUTO_TEMP = NCT6106_REG_AUTO_TEMP;
3491 data->REG_AUTO_PWM = NCT6106_REG_AUTO_PWM;
3492 data->REG_CRITICAL_TEMP = NCT6106_REG_CRITICAL_TEMP;
3493 data->REG_CRITICAL_TEMP_TOLERANCE
3494 = NCT6106_REG_CRITICAL_TEMP_TOLERANCE;
3495 data->REG_CRITICAL_PWM_ENABLE = NCT6106_REG_CRITICAL_PWM_ENABLE;
3496 data->CRITICAL_PWM_ENABLE_MASK
3497 = NCT6106_CRITICAL_PWM_ENABLE_MASK;
3498 data->REG_CRITICAL_PWM = NCT6106_REG_CRITICAL_PWM;
3499 data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
3500 data->REG_TEMP_SOURCE = NCT6106_REG_TEMP_SOURCE;
3501 data->REG_TEMP_SEL = NCT6106_REG_TEMP_SEL;
3502 data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
3503 data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
3504 data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
3505 data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
3506 data->REG_ALARM = NCT6106_REG_ALARM;
3507 data->ALARM_BITS = NCT6106_ALARM_BITS;
3508 data->REG_BEEP = NCT6106_REG_BEEP;
3509 data->BEEP_BITS = NCT6106_BEEP_BITS;
3510
3511 reg_temp = NCT6106_REG_TEMP;
3512 reg_temp_mon = NCT6106_REG_TEMP_MON;
3513 num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
3514 num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
3515 reg_temp_over = NCT6106_REG_TEMP_OVER;
3516 reg_temp_hyst = NCT6106_REG_TEMP_HYST;
3517 reg_temp_config = NCT6106_REG_TEMP_CONFIG;
3518 reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
3519 reg_temp_crit = NCT6106_REG_TEMP_CRIT;
3520 reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
3521 reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
3522
3523 break;
3524 case nct6775:
3525 data->in_num = 9;
3526 data->pwm_num = 3;
3527 data->auto_pwm_num = 6;
3528 data->has_fan_div = true;
3529 data->temp_fixed_num = 3;
3530 data->num_temp_alarms = 3;
3531 data->num_temp_beeps = 3;
3532
3533 data->ALARM_BITS = NCT6775_ALARM_BITS;
3534 data->BEEP_BITS = NCT6775_BEEP_BITS;
3535
3536 data->fan_from_reg = fan_from_reg16;
3537 data->fan_from_reg_min = fan_from_reg8;
3538 data->target_temp_mask = 0x7f;
3539 data->tolerance_mask = 0x0f;
3540 data->speed_tolerance_limit = 15;
3541
3542 data->temp_label = nct6775_temp_label;
3543 data->temp_label_num = ARRAY_SIZE(nct6775_temp_label);
3544
3545 data->REG_CONFIG = NCT6775_REG_CONFIG;
3546 data->REG_VBAT = NCT6775_REG_VBAT;
3547 data->REG_DIODE = NCT6775_REG_DIODE;
3548 data->DIODE_MASK = NCT6775_DIODE_MASK;
3549 data->REG_VIN = NCT6775_REG_IN;
3550 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3551 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3552 data->REG_TARGET = NCT6775_REG_TARGET;
3553 data->REG_FAN = NCT6775_REG_FAN;
3554 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3555 data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
3556 data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES;
3557 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3558 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3559 data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
3560 data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
3561 data->REG_PWM[0] = NCT6775_REG_PWM;
3562 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3563 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3564 data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
3565 data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
3566 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3567 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3568 data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
3569 data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
3570 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3571 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3572 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3573 data->REG_CRITICAL_TEMP_TOLERANCE
3574 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3575 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3576 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3577 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3578 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3579 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3580 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3581 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3582 data->REG_ALARM = NCT6775_REG_ALARM;
3583 data->REG_BEEP = NCT6775_REG_BEEP;
3584
3585 reg_temp = NCT6775_REG_TEMP;
3586 reg_temp_mon = NCT6775_REG_TEMP_MON;
3587 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3588 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
3589 reg_temp_over = NCT6775_REG_TEMP_OVER;
3590 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3591 reg_temp_config = NCT6775_REG_TEMP_CONFIG;
3592 reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE;
3593 reg_temp_crit = NCT6775_REG_TEMP_CRIT;
3594
3595 break;
3596 case nct6776:
3597 data->in_num = 9;
3598 data->pwm_num = 3;
3599 data->auto_pwm_num = 4;
3600 data->has_fan_div = false;
3601 data->temp_fixed_num = 3;
3602 data->num_temp_alarms = 3;
3603 data->num_temp_beeps = 6;
3604
3605 data->ALARM_BITS = NCT6776_ALARM_BITS;
3606 data->BEEP_BITS = NCT6776_BEEP_BITS;
3607
3608 data->fan_from_reg = fan_from_reg13;
3609 data->fan_from_reg_min = fan_from_reg13;
3610 data->target_temp_mask = 0xff;
3611 data->tolerance_mask = 0x07;
3612 data->speed_tolerance_limit = 63;
3613
3614 data->temp_label = nct6776_temp_label;
3615 data->temp_label_num = ARRAY_SIZE(nct6776_temp_label);
3616
3617 data->REG_CONFIG = NCT6775_REG_CONFIG;
3618 data->REG_VBAT = NCT6775_REG_VBAT;
3619 data->REG_DIODE = NCT6775_REG_DIODE;
3620 data->DIODE_MASK = NCT6775_DIODE_MASK;
3621 data->REG_VIN = NCT6775_REG_IN;
3622 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3623 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3624 data->REG_TARGET = NCT6775_REG_TARGET;
3625 data->REG_FAN = NCT6775_REG_FAN;
3626 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3627 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3628 data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
3629 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3630 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3631 data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
3632 data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
3633 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3634 data->REG_PWM[0] = NCT6775_REG_PWM;
3635 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3636 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3637 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3638 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3639 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3640 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3641 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3642 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3643 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3644 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3645 data->REG_CRITICAL_TEMP_TOLERANCE
3646 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3647 data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
3648 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3649 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3650 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3651 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3652 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3653 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3654 data->REG_ALARM = NCT6775_REG_ALARM;
3655 data->REG_BEEP = NCT6776_REG_BEEP;
3656
3657 reg_temp = NCT6775_REG_TEMP;
3658 reg_temp_mon = NCT6775_REG_TEMP_MON;
3659 num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
3660 num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
3661 reg_temp_over = NCT6775_REG_TEMP_OVER;
3662 reg_temp_hyst = NCT6775_REG_TEMP_HYST;
3663 reg_temp_config = NCT6776_REG_TEMP_CONFIG;
3664 reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE;
3665 reg_temp_crit = NCT6776_REG_TEMP_CRIT;
3666
3667 break;
3668 case nct6779:
3669 data->in_num = 15;
3670 data->pwm_num = 5;
3671 data->auto_pwm_num = 4;
3672 data->has_fan_div = false;
3673 data->temp_fixed_num = 6;
3674 data->num_temp_alarms = 2;
3675 data->num_temp_beeps = 2;
3676
3677 data->ALARM_BITS = NCT6779_ALARM_BITS;
3678 data->BEEP_BITS = NCT6779_BEEP_BITS;
3679
3680 data->fan_from_reg = fan_from_reg13;
3681 data->fan_from_reg_min = fan_from_reg13;
3682 data->target_temp_mask = 0xff;
3683 data->tolerance_mask = 0x07;
3684 data->speed_tolerance_limit = 63;
3685
3686 data->temp_label = nct6779_temp_label;
3687 data->temp_label_num = NCT6779_NUM_LABELS;
3688
3689 data->REG_CONFIG = NCT6775_REG_CONFIG;
3690 data->REG_VBAT = NCT6775_REG_VBAT;
3691 data->REG_DIODE = NCT6775_REG_DIODE;
3692 data->DIODE_MASK = NCT6775_DIODE_MASK;
3693 data->REG_VIN = NCT6779_REG_IN;
3694 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3695 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3696 data->REG_TARGET = NCT6775_REG_TARGET;
3697 data->REG_FAN = NCT6779_REG_FAN;
3698 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3699 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3700 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
3701 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3702 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3703 data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
3704 data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
3705 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3706 data->REG_PWM[0] = NCT6775_REG_PWM;
3707 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3708 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3709 data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
3710 data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
3711 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3712 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3713 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3714 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3715 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3716 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3717 data->REG_CRITICAL_TEMP_TOLERANCE
3718 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3719 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
3720 data->CRITICAL_PWM_ENABLE_MASK
3721 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
3722 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
3723 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3724 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3725 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3726 data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
3727 data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
3728 data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
3729 data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
3730 data->REG_ALARM = NCT6779_REG_ALARM;
3731 data->REG_BEEP = NCT6776_REG_BEEP;
3732
3733 reg_temp = NCT6779_REG_TEMP;
3734 reg_temp_mon = NCT6779_REG_TEMP_MON;
3735 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3736 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
3737 reg_temp_over = NCT6779_REG_TEMP_OVER;
3738 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3739 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3740 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3741 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3742
3743 break;
3744 case nct6791:
3745 case nct6792:
3746 case nct6793:
3747 data->in_num = 15;
3748 data->pwm_num = 6;
3749 data->auto_pwm_num = 4;
3750 data->has_fan_div = false;
3751 data->temp_fixed_num = 6;
3752 data->num_temp_alarms = 2;
3753 data->num_temp_beeps = 2;
3754
3755 data->ALARM_BITS = NCT6791_ALARM_BITS;
3756 data->BEEP_BITS = NCT6779_BEEP_BITS;
3757
3758 data->fan_from_reg = fan_from_reg13;
3759 data->fan_from_reg_min = fan_from_reg13;
3760 data->target_temp_mask = 0xff;
3761 data->tolerance_mask = 0x07;
3762 data->speed_tolerance_limit = 63;
3763
3764 switch (data->kind) {
3765 default:
3766 case nct6791:
3767 data->temp_label = nct6779_temp_label;
3768 break;
3769 case nct6792:
3770 data->temp_label = nct6792_temp_label;
3771 break;
3772 case nct6793:
3773 data->temp_label = nct6793_temp_label;
3774 break;
3775 }
3776 data->temp_label_num = NCT6791_NUM_LABELS;
3777
3778 data->REG_CONFIG = NCT6775_REG_CONFIG;
3779 data->REG_VBAT = NCT6775_REG_VBAT;
3780 data->REG_DIODE = NCT6775_REG_DIODE;
3781 data->DIODE_MASK = NCT6775_DIODE_MASK;
3782 data->REG_VIN = NCT6779_REG_IN;
3783 data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
3784 data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
3785 data->REG_TARGET = NCT6775_REG_TARGET;
3786 data->REG_FAN = NCT6779_REG_FAN;
3787 data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
3788 data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
3789 data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
3790 data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
3791 data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
3792 data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
3793 data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
3794 data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
3795 data->REG_PWM[0] = NCT6775_REG_PWM;
3796 data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
3797 data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
3798 data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP;
3799 data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE;
3800 data->REG_PWM_READ = NCT6775_REG_PWM_READ;
3801 data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
3802 data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
3803 data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
3804 data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
3805 data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
3806 data->REG_CRITICAL_TEMP_TOLERANCE
3807 = NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
3808 data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
3809 data->CRITICAL_PWM_ENABLE_MASK
3810 = NCT6779_CRITICAL_PWM_ENABLE_MASK;
3811 data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
3812 data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
3813 data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
3814 data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
3815 data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL;
3816 data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP;
3817 data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL;
3818 data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE;
3819 data->REG_ALARM = NCT6791_REG_ALARM;
3820 if (data->kind == nct6791)
3821 data->REG_BEEP = NCT6776_REG_BEEP;
3822 else
3823 data->REG_BEEP = NCT6792_REG_BEEP;
3824
3825 reg_temp = NCT6779_REG_TEMP;
3826 num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
3827 if (data->kind == nct6791) {
3828 reg_temp_mon = NCT6779_REG_TEMP_MON;
3829 num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
3830 } else {
3831 reg_temp_mon = NCT6792_REG_TEMP_MON;
3832 num_reg_temp_mon = ARRAY_SIZE(NCT6792_REG_TEMP_MON);
3833 }
3834 reg_temp_over = NCT6779_REG_TEMP_OVER;
3835 reg_temp_hyst = NCT6779_REG_TEMP_HYST;
3836 reg_temp_config = NCT6779_REG_TEMP_CONFIG;
3837 reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
3838 reg_temp_crit = NCT6779_REG_TEMP_CRIT;
3839
3840 break;
3841 default:
3842 return -ENODEV;
3843 }
3844 data->have_in = (1 << data->in_num) - 1;
3845 data->have_temp = 0;
3846
3847 /*
3848 * On some boards, not all available temperature sources are monitored,
3849 * even though some of the monitoring registers are unused.
3850 * Get list of unused monitoring registers, then detect if any fan
3851 * controls are configured to use unmonitored temperature sources.
3852 * If so, assign the unmonitored temperature sources to available
3853 * monitoring registers.
3854 */
3855 mask = 0;
3856 available = 0;
3857 for (i = 0; i < num_reg_temp; i++) {
3858 if (reg_temp[i] == 0)
3859 continue;
3860
3861 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3862 if (!src || (mask & (1 << src)))
3863 available |= 1 << i;
3864
3865 mask |= 1 << src;
3866 }
3867
3868 /*
3869 * Now find unmonitored temperature registers and enable monitoring
3870 * if additional monitoring registers are available.
3871 */
3872 add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask);
3873 add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask);
3874
3875 mask = 0;
3876 s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
3877 for (i = 0; i < num_reg_temp; i++) {
3878 if (reg_temp[i] == 0)
3879 continue;
3880
3881 src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
3882 if (!src || (mask & (1 << src)))
3883 continue;
3884
3885 if (src >= data->temp_label_num ||
3886 !strlen(data->temp_label[src])) {
3887 dev_info(dev,
3888 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3889 src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
3890 continue;
3891 }
3892
3893 mask |= 1 << src;
3894
3895 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3896 if (src <= data->temp_fixed_num) {
3897 data->have_temp |= 1 << (src - 1);
3898 data->have_temp_fixed |= 1 << (src - 1);
3899 data->reg_temp[0][src - 1] = reg_temp[i];
3900 data->reg_temp[1][src - 1] = reg_temp_over[i];
3901 data->reg_temp[2][src - 1] = reg_temp_hyst[i];
3902 if (reg_temp_crit_h && reg_temp_crit_h[i])
3903 data->reg_temp[3][src - 1] = reg_temp_crit_h[i];
3904 else if (reg_temp_crit[src - 1])
3905 data->reg_temp[3][src - 1]
3906 = reg_temp_crit[src - 1];
3907 if (reg_temp_crit_l && reg_temp_crit_l[i])
3908 data->reg_temp[4][src - 1] = reg_temp_crit_l[i];
3909 data->reg_temp_config[src - 1] = reg_temp_config[i];
3910 data->temp_src[src - 1] = src;
3911 continue;
3912 }
3913
3914 if (s >= NUM_TEMP)
3915 continue;
3916
3917 /* Use dynamic index for other sources */
3918 data->have_temp |= 1 << s;
3919 data->reg_temp[0][s] = reg_temp[i];
3920 data->reg_temp[1][s] = reg_temp_over[i];
3921 data->reg_temp[2][s] = reg_temp_hyst[i];
3922 data->reg_temp_config[s] = reg_temp_config[i];
3923 if (reg_temp_crit_h && reg_temp_crit_h[i])
3924 data->reg_temp[3][s] = reg_temp_crit_h[i];
3925 else if (reg_temp_crit[src - 1])
3926 data->reg_temp[3][s] = reg_temp_crit[src - 1];
3927 if (reg_temp_crit_l && reg_temp_crit_l[i])
3928 data->reg_temp[4][s] = reg_temp_crit_l[i];
3929
3930 data->temp_src[s] = src;
3931 s++;
3932 }
3933
3934 /*
3935 * Repeat with temperatures used for fan control.
3936 * This set of registers does not support limits.
3937 */
3938 for (i = 0; i < num_reg_temp_mon; i++) {
3939 if (reg_temp_mon[i] == 0)
3940 continue;
3941
3942 src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
3943 if (!src || (mask & (1 << src)))
3944 continue;
3945
3946 if (src >= data->temp_label_num ||
3947 !strlen(data->temp_label[src])) {
3948 dev_info(dev,
3949 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
3950 src, i, data->REG_TEMP_SEL[i],
3951 reg_temp_mon[i]);
3952 continue;
3953 }
3954
3955 mask |= 1 << src;
3956
3957 /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
3958 if (src <= data->temp_fixed_num) {
3959 if (data->have_temp & (1 << (src - 1)))
3960 continue;
3961 data->have_temp |= 1 << (src - 1);
3962 data->have_temp_fixed |= 1 << (src - 1);
3963 data->reg_temp[0][src - 1] = reg_temp_mon[i];
3964 data->temp_src[src - 1] = src;
3965 continue;
3966 }
3967
3968 if (s >= NUM_TEMP)
3969 continue;
3970
3971 /* Use dynamic index for other sources */
3972 data->have_temp |= 1 << s;
3973 data->reg_temp[0][s] = reg_temp_mon[i];
3974 data->temp_src[s] = src;
3975 s++;
3976 }
3977
3978#ifdef USE_ALTERNATE
3979 /*
3980 * Go through the list of alternate temp registers and enable
3981 * if possible.
3982 * The temperature is already monitored if the respective bit in <mask>
3983 * is set.
3984 */
3985 for (i = 0; i < data->temp_label_num - 1; i++) {
3986 if (!reg_temp_alternate[i])
3987 continue;
3988 if (mask & (1 << (i + 1)))
3989 continue;
3990 if (i < data->temp_fixed_num) {
3991 if (data->have_temp & (1 << i))
3992 continue;
3993 data->have_temp |= 1 << i;
3994 data->have_temp_fixed |= 1 << i;
3995 data->reg_temp[0][i] = reg_temp_alternate[i];
3996 if (i < num_reg_temp) {
3997 data->reg_temp[1][i] = reg_temp_over[i];
3998 data->reg_temp[2][i] = reg_temp_hyst[i];
3999 }
4000 data->temp_src[i] = i + 1;
4001 continue;
4002 }
4003
4004 if (s >= NUM_TEMP) /* Abort if no more space */
4005 break;
4006
4007 data->have_temp |= 1 << s;
4008 data->reg_temp[0][s] = reg_temp_alternate[i];
4009 data->temp_src[s] = i + 1;
4010 s++;
4011 }
4012#endif /* USE_ALTERNATE */
4013
4014 /* Initialize the chip */
4015 nct6775_init_device(data);
4016
4017 err = superio_enter(sio_data->sioreg);
4018 if (err)
4019 return err;
4020
4021 cr2a = superio_inb(sio_data->sioreg, 0x2a);
4022 switch (data->kind) {
4023 case nct6775:
4024 data->have_vid = (cr2a & 0x40);
4025 break;
4026 case nct6776:
4027 data->have_vid = (cr2a & 0x60) == 0x40;
4028 break;
4029 case nct6106:
4030 case nct6779:
4031 case nct6791:
4032 case nct6792:
4033 case nct6793:
4034 break;
4035 }
4036
4037 /*
4038 * Read VID value
4039 * We can get the VID input values directly at logical device D 0xe3.
4040 */
4041 if (data->have_vid) {
4042 superio_select(sio_data->sioreg, NCT6775_LD_VID);
4043 data->vid = superio_inb(sio_data->sioreg, 0xe3);
4044 data->vrm = vid_which_vrm();
4045 }
4046
4047 if (fan_debounce) {
4048 u8 tmp;
4049
4050 superio_select(sio_data->sioreg, NCT6775_LD_HWM);
4051 tmp = superio_inb(sio_data->sioreg,
4052 NCT6775_REG_CR_FAN_DEBOUNCE);
4053 switch (data->kind) {
4054 case nct6106:
4055 tmp |= 0xe0;
4056 break;
4057 case nct6775:
4058 tmp |= 0x1e;
4059 break;
4060 case nct6776:
4061 case nct6779:
4062 tmp |= 0x3e;
4063 break;
4064 case nct6791:
4065 case nct6792:
4066 case nct6793:
4067 tmp |= 0x7e;
4068 break;
4069 }
4070 superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
4071 tmp);
4072 dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
4073 data->name);
4074 }
4075
4076 nct6775_check_fan_inputs(data);
4077
4078 superio_exit(sio_data->sioreg);
4079
4080 /* Read fan clock dividers immediately */
4081 nct6775_init_fan_common(dev, data);
4082
4083 /* Register sysfs hooks */
4084 group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group,
4085 data->pwm_num);
4086 if (IS_ERR(group))
4087 return PTR_ERR(group);
4088
4089 data->groups[num_attr_groups++] = group;
4090
4091 group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
4092 fls(data->have_in));
4093 if (IS_ERR(group))
4094 return PTR_ERR(group);
4095
4096 data->groups[num_attr_groups++] = group;
4097
4098 group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
4099 fls(data->has_fan));
4100 if (IS_ERR(group))
4101 return PTR_ERR(group);
4102
4103 data->groups[num_attr_groups++] = group;
4104
4105 group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
4106 fls(data->have_temp));
4107 if (IS_ERR(group))
4108 return PTR_ERR(group);
4109
4110 data->groups[num_attr_groups++] = group;
4111 data->groups[num_attr_groups++] = &nct6775_group_other;
4112
4113 hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
4114 data, data->groups);
4115 return PTR_ERR_OR_ZERO(hwmon_dev);
4116}
4117
4118static void nct6791_enable_io_mapping(int sioaddr)
4119{
4120 int val;
4121
4122 val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
4123 if (val & 0x10) {
4124 pr_info("Enabling hardware monitor logical device mappings.\n");
4125 superio_outb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
4126 val & ~0x10);
4127 }
4128}
4129
4130static int __maybe_unused nct6775_suspend(struct device *dev)
4131{
4132 struct nct6775_data *data = nct6775_update_device(dev);
4133
4134 mutex_lock(&data->update_lock);
4135 data->vbat = nct6775_read_value(data, data->REG_VBAT);
4136 if (data->kind == nct6775) {
4137 data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1);
4138 data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2);
4139 }
4140 mutex_unlock(&data->update_lock);
4141
4142 return 0;
4143}
4144
4145static int __maybe_unused nct6775_resume(struct device *dev)
4146{
4147 struct nct6775_data *data = dev_get_drvdata(dev);
4148 int sioreg = data->sioreg;
4149 int i, j, err = 0;
4150 u8 reg;
4151
4152 mutex_lock(&data->update_lock);
4153 data->bank = 0xff; /* Force initial bank selection */
4154
4155 err = superio_enter(sioreg);
4156 if (err)
4157 goto abort;
4158
4159 superio_select(sioreg, NCT6775_LD_HWM);
4160 reg = superio_inb(sioreg, SIO_REG_ENABLE);
4161 if (reg != data->sio_reg_enable)
4162 superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
4163
4164 if (data->kind == nct6791 || data->kind == nct6792 ||
4165 data->kind == nct6793)
4166 nct6791_enable_io_mapping(sioreg);
4167
4168 superio_exit(sioreg);
4169
4170 /* Restore limits */
4171 for (i = 0; i < data->in_num; i++) {
4172 if (!(data->have_in & (1 << i)))
4173 continue;
4174
4175 nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
4176 data->in[i][1]);
4177 nct6775_write_value(data, data->REG_IN_MINMAX[1][i],
4178 data->in[i][2]);
4179 }
4180
4181 for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
4182 if (!(data->has_fan_min & (1 << i)))
4183 continue;
4184
4185 nct6775_write_value(data, data->REG_FAN_MIN[i],
4186 data->fan_min[i]);
4187 }
4188
4189 for (i = 0; i < NUM_TEMP; i++) {
4190 if (!(data->have_temp & (1 << i)))
4191 continue;
4192
4193 for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
4194 if (data->reg_temp[j][i])
4195 nct6775_write_temp(data, data->reg_temp[j][i],
4196 data->temp[j][i]);
4197 }
4198
4199 /* Restore other settings */
4200 nct6775_write_value(data, data->REG_VBAT, data->vbat);
4201 if (data->kind == nct6775) {
4202 nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
4203 nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
4204 }
4205
4206abort:
4207 /* Force re-reading all values */
4208 data->valid = false;
4209 mutex_unlock(&data->update_lock);
4210
4211 return err;
4212}
4213
4214static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
4215
4216static struct platform_driver nct6775_driver = {
4217 .driver = {
4218 .name = DRVNAME,
4219 .pm = &nct6775_dev_pm_ops,
4220 },
4221 .probe = nct6775_probe,
4222};
4223
4224/* nct6775_find() looks for a '627 in the Super-I/O config space */
4225static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
4226{
4227 u16 val;
4228 int err;
4229 int addr;
4230
4231 err = superio_enter(sioaddr);
4232 if (err)
4233 return err;
4234
4235 if (force_id)
4236 val = force_id;
4237 else
4238 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
4239 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
4240 switch (val & SIO_ID_MASK) {
4241 case SIO_NCT6106_ID:
4242 sio_data->kind = nct6106;
4243 break;
4244 case SIO_NCT6775_ID:
4245 sio_data->kind = nct6775;
4246 break;
4247 case SIO_NCT6776_ID:
4248 sio_data->kind = nct6776;
4249 break;
4250 case SIO_NCT6779_ID:
4251 sio_data->kind = nct6779;
4252 break;
4253 case SIO_NCT6791_ID:
4254 sio_data->kind = nct6791;
4255 break;
4256 case SIO_NCT6792_ID:
4257 sio_data->kind = nct6792;
4258 break;
4259 case SIO_NCT6793_ID:
4260 sio_data->kind = nct6793;
4261 break;
4262 default:
4263 if (val != 0xffff)
4264 pr_debug("unsupported chip ID: 0x%04x\n", val);
4265 superio_exit(sioaddr);
4266 return -ENODEV;
4267 }
4268
4269 /* We have a known chip, find the HWM I/O address */
4270 superio_select(sioaddr, NCT6775_LD_HWM);
4271 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
4272 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
4273 addr = val & IOREGION_ALIGNMENT;
4274 if (addr == 0) {
4275 pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
4276 superio_exit(sioaddr);
4277 return -ENODEV;
4278 }
4279
4280 /* Activate logical device if needed */
4281 val = superio_inb(sioaddr, SIO_REG_ENABLE);
4282 if (!(val & 0x01)) {
4283 pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
4284 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
4285 }
4286
4287 if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
4288 sio_data->kind == nct6793)
4289 nct6791_enable_io_mapping(sioaddr);
4290
4291 superio_exit(sioaddr);
4292 pr_info("Found %s or compatible chip at %#x:%#x\n",
4293 nct6775_sio_names[sio_data->kind], sioaddr, addr);
4294 sio_data->sioreg = sioaddr;
4295
4296 return addr;
4297}
4298
4299/*
4300 * when Super-I/O functions move to a separate file, the Super-I/O
4301 * bus will manage the lifetime of the device and this module will only keep
4302 * track of the nct6775 driver. But since we use platform_device_alloc(), we
4303 * must keep track of the device
4304 */
4305static struct platform_device *pdev[2];
4306
4307static int __init sensors_nct6775_init(void)
4308{
4309 int i, err;
4310 bool found = false;
4311 int address;
4312 struct resource res;
4313 struct nct6775_sio_data sio_data;
4314 int sioaddr[2] = { 0x2e, 0x4e };
4315
4316 err = platform_driver_register(&nct6775_driver);
4317 if (err)
4318 return err;
4319
4320 /*
4321 * initialize sio_data->kind and sio_data->sioreg.
4322 *
4323 * when Super-I/O functions move to a separate file, the Super-I/O
4324 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
4325 * nct6775 hardware monitor, and call probe()
4326 */
4327 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4328 address = nct6775_find(sioaddr[i], &sio_data);
4329 if (address <= 0)
4330 continue;
4331
4332 found = true;
4333
4334 pdev[i] = platform_device_alloc(DRVNAME, address);
4335 if (!pdev[i]) {
4336 err = -ENOMEM;
4337 goto exit_device_unregister;
4338 }
4339
4340 err = platform_device_add_data(pdev[i], &sio_data,
4341 sizeof(struct nct6775_sio_data));
4342 if (err)
4343 goto exit_device_put;
4344
4345 memset(&res, 0, sizeof(res));
4346 res.name = DRVNAME;
4347 res.start = address + IOREGION_OFFSET;
4348 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
4349 res.flags = IORESOURCE_IO;
4350
4351 err = acpi_check_resource_conflict(&res);
4352 if (err) {
4353 platform_device_put(pdev[i]);
4354 pdev[i] = NULL;
4355 continue;
4356 }
4357
4358 err = platform_device_add_resources(pdev[i], &res, 1);
4359 if (err)
4360 goto exit_device_put;
4361
4362 /* platform_device_add calls probe() */
4363 err = platform_device_add(pdev[i]);
4364 if (err)
4365 goto exit_device_put;
4366 }
4367 if (!found) {
4368 err = -ENODEV;
4369 goto exit_unregister;
4370 }
4371
4372 return 0;
4373
4374exit_device_put:
4375 platform_device_put(pdev[i]);
4376exit_device_unregister:
4377 while (--i >= 0) {
4378 if (pdev[i])
4379 platform_device_unregister(pdev[i]);
4380 }
4381exit_unregister:
4382 platform_driver_unregister(&nct6775_driver);
4383 return err;
4384}
4385
4386static void __exit sensors_nct6775_exit(void)
4387{
4388 int i;
4389
4390 for (i = 0; i < ARRAY_SIZE(pdev); i++) {
4391 if (pdev[i])
4392 platform_device_unregister(pdev[i]);
4393 }
4394 platform_driver_unregister(&nct6775_driver);
4395}
4396
4397MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
4398MODULE_DESCRIPTION("Driver for NCT6775F and compatible chips");
4399MODULE_LICENSE("GPL");
4400
4401module_init(sensors_nct6775_init);
4402module_exit(sensors_nct6775_exit);