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linux/drivers/hwmon/nct6775-core.c
Zev Weiss f4e6960f4f hwmon: (nct6775) Fix platform driver suspend regression 
Commit c3963bc0a0 ("hwmon: (nct6775) Split core and platform
driver") introduced a slight change in nct6775_suspend() in order to
avoid an otherwise-needless symbol export for nct6775_update_device(),
replacing a call to that function with a simple dev_get_drvdata()
instead.

As it turns out, there is no guarantee that nct6775_update_device()
is ever called prior to suspend. If this happens, the resume function
ends up writing bad data into the various chip registers, which results
in a crash shortly after resume.

To fix the problem, just add the symbol export and return to using
nct6775_update_device() as was employed previously.

Reported-by: Zoltán Kővágó <dirty.ice.hu@gmail.com>
Tested-by: Zoltán Kővágó <dirty.ice.hu@gmail.com>
Fixes: c3963bc0a0 ("hwmon: (nct6775) Split core and platform driver")
Cc: stable@kernel.org
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Link: https://lore.kernel.org/r/20220810052646.13825-1-zev@bewilderbeest.net
[groeck: Updated description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-08-10 06:37:01 -07:00

4207 lines
118 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* nct6775 - Driver for the hardware monitoring functionality of
* Nuvoton NCT677x Super-I/O chips
*
* Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net>
*
* Derived from w83627ehf driver
* Copyright (C) 2005-2012 Jean Delvare <jdelvare@suse.de>
* Copyright (C) 2006 Yuan Mu (Winbond),
* Rudolf Marek <r.marek@assembler.cz>
* David Hubbard <david.c.hubbard@gmail.com>
* Daniel J Blueman <daniel.blueman@gmail.com>
* Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00)
*
* Shamelessly ripped from the w83627hf driver
* Copyright (C) 2003 Mark Studebaker
*
* Supports the following chips:
*
* Chip #vin #fan #pwm #temp chip IDs man ID
* nct6106d 9 3 3 6+3 0xc450 0xc1 0x5ca3
* nct6116d 9 5 5 3+3 0xd280 0xc1 0x5ca3
* nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3
* nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3
* nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3
* nct6791d 15 6 6 2+6 0xc800 0xc1 0x5ca3
* nct6792d 15 6 6 2+6 0xc910 0xc1 0x5ca3
* nct6793d 15 6 6 2+6 0xd120 0xc1 0x5ca3
* nct6795d 14 6 6 2+6 0xd350 0xc1 0x5ca3
* nct6796d 14 7 7 2+6 0xd420 0xc1 0x5ca3
* nct6797d 14 7 7 2+6 0xd450 0xc1 0x5ca3
* (0xd451)
* nct6798d 14 7 7 2+6 0xd428 0xc1 0x5ca3
* (0xd429)
*
* #temp lists the number of monitored temperature sources (first value) plus
* the number of directly connectable temperature sensors (second value).
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/bitops.h>
#include <linux/nospec.h>
#include <linux/regmap.h>
#include "lm75.h"
#include "nct6775.h"
#undef DEFAULT_SYMBOL_NAMESPACE
#define DEFAULT_SYMBOL_NAMESPACE HWMON_NCT6775
#define USE_ALTERNATE
/* used to set data->name = nct6775_device_names[data->sio_kind] */
static const char * const nct6775_device_names[] = {
"nct6106",
"nct6116",
"nct6775",
"nct6776",
"nct6779",
"nct6791",
"nct6792",
"nct6793",
"nct6795",
"nct6796",
"nct6797",
"nct6798",
};
/* Common and NCT6775 specific data */
/* Voltage min/max registers for nr=7..14 are in bank 5 */
static const u16 NCT6775_REG_IN_MAX[] = {
0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a,
0x55c, 0x55e, 0x560, 0x562 };
static const u16 NCT6775_REG_IN_MIN[] = {
0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b,
0x55d, 0x55f, 0x561, 0x563 };
static const u16 NCT6775_REG_IN[] = {
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552
};
#define NCT6775_REG_VBAT 0x5D
#define NCT6775_REG_DIODE 0x5E
#define NCT6775_DIODE_MASK 0x02
static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B };
/* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */
static const s8 NCT6775_ALARM_BITS[] = {
0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
-1, /* unused */
6, 7, 11, -1, -1, /* fan1..fan5 */
-1, -1, -1, /* unused */
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, -1 }; /* intrusion0, intrusion1 */
static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e };
/*
* 0..14 voltages, 15 global beep enable, 16..23 fans, 24..29 temperatures,
* 30..31 intrusion
*/
static const s8 NCT6775_BEEP_BITS[] = {
0, 1, 2, 3, 8, 9, 10, 16, /* in0.. in7 */
17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
21, /* global beep enable */
6, 7, 11, 28, -1, /* fan1..fan5 */
-1, -1, -1, /* unused */
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, -1 }; /* intrusion0, intrusion1 */
/* DC or PWM output fan configuration */
static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
/* Advanced Fan control, some values are common for all fans */
static const u16 NCT6775_REG_TARGET[] = {
0x101, 0x201, 0x301, 0x801, 0x901, 0xa01, 0xb01 };
static const u16 NCT6775_REG_FAN_MODE[] = {
0x102, 0x202, 0x302, 0x802, 0x902, 0xa02, 0xb02 };
static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
0x103, 0x203, 0x303, 0x803, 0x903, 0xa03, 0xb03 };
static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
0x104, 0x204, 0x304, 0x804, 0x904, 0xa04, 0xb04 };
static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
0x105, 0x205, 0x305, 0x805, 0x905, 0xa05, 0xb05 };
static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
0x106, 0x206, 0x306, 0x806, 0x906, 0xa06, 0xb06 };
static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
0x107, 0x207, 0x307, 0x807, 0x907, 0xa07, 0xb07 };
static const u16 NCT6775_REG_PWM[] = {
0x109, 0x209, 0x309, 0x809, 0x909, 0xa09, 0xb09 };
static const u16 NCT6775_REG_PWM_READ[] = {
0x01, 0x03, 0x11, 0x13, 0x15, 0xa09, 0xb09 };
static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
static const u16 NCT6775_REG_FAN_PULSES[NUM_FAN] = {
0x641, 0x642, 0x643, 0x644 };
static const u16 NCT6775_FAN_PULSE_SHIFT[NUM_FAN] = { };
static const u16 NCT6775_REG_TEMP[] = {
0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0, 0x152, 0x252, 0x628, 0x629, 0x62A };
static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D };
static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0x39, 0x155, 0x255, 0x672, 0x677, 0x67C };
static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
static const u16 NCT6775_REG_TEMP_SEL[] = {
0x100, 0x200, 0x300, 0x800, 0x900, 0xa00, 0xb00 };
static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {
0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 };
static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = {
0x13a, 0x23a, 0x33a, 0x83a, 0x93a, 0xa3a };
static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = {
0x13b, 0x23b, 0x33b, 0x83b, 0x93b, 0xa3b };
static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = {
0x13c, 0x23c, 0x33c, 0x83c, 0x93c, 0xa3c };
static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {
0x13d, 0x23d, 0x33d, 0x83d, 0x93d, 0xa3d };
static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
static const u16 NCT6775_REG_AUTO_TEMP[] = {
0x121, 0x221, 0x321, 0x821, 0x921, 0xa21, 0xb21 };
static const u16 NCT6775_REG_AUTO_PWM[] = {
0x127, 0x227, 0x327, 0x827, 0x927, 0xa27, 0xb27 };
#define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
#define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
0x135, 0x235, 0x335, 0x835, 0x935, 0xa35, 0xb35 };
static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
0x138, 0x238, 0x338, 0x838, 0x938, 0xa38, 0xb38 };
static const char *const nct6775_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN",
"AMD SB-TSI",
"PECI Agent 0",
"PECI Agent 1",
"PECI Agent 2",
"PECI Agent 3",
"PECI Agent 4",
"PECI Agent 5",
"PECI Agent 6",
"PECI Agent 7",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"PCH_DIM0_TEMP",
"PCH_DIM1_TEMP",
"PCH_DIM2_TEMP",
"PCH_DIM3_TEMP"
};
#define NCT6775_TEMP_MASK 0x001ffffe
#define NCT6775_VIRT_TEMP_MASK 0x00000000
static const u16 NCT6775_REG_TEMP_ALTERNATE[32] = {
[13] = 0x661,
[14] = 0x662,
[15] = 0x664,
};
static const u16 NCT6775_REG_TEMP_CRIT[32] = {
[4] = 0xa00,
[5] = 0xa01,
[6] = 0xa02,
[7] = 0xa03,
[8] = 0xa04,
[9] = 0xa05,
[10] = 0xa06,
[11] = 0xa07
};
static const u16 NCT6775_REG_TSI_TEMP[] = { 0x669 };
/* NCT6776 specific data */
/* STEP_UP_TIME and STEP_DOWN_TIME regs are swapped for all chips but NCT6775 */
#define NCT6776_REG_FAN_STEP_UP_TIME NCT6775_REG_FAN_STEP_DOWN_TIME
#define NCT6776_REG_FAN_STEP_DOWN_TIME NCT6775_REG_FAN_STEP_UP_TIME
static const s8 NCT6776_ALARM_BITS[] = {
0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
-1, /* unused */
6, 7, 11, 10, 23, /* fan1..fan5 */
-1, -1, -1, /* unused */
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, 9 }; /* intrusion0, intrusion1 */
static const u16 NCT6776_REG_BEEP[NUM_REG_BEEP] = { 0xb2, 0xb3, 0xb4, 0xb5 };
static const s8 NCT6776_BEEP_BITS[] = {
0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
8, -1, -1, -1, -1, -1, -1, /* in8..in14 */
24, /* global beep enable */
25, 26, 27, 28, 29, /* fan1..fan5 */
-1, -1, -1, /* unused */
16, 17, 18, 19, 20, 21, /* temp1..temp6 */
30, 31 }; /* intrusion0, intrusion1 */
static const u16 NCT6776_REG_TOLERANCE_H[] = {
0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c, 0xb0c };
static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 };
static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 };
static const u16 NCT6776_REG_FAN_MIN[] = {
0x63a, 0x63c, 0x63e, 0x640, 0x642, 0x64a, 0x64c };
static const u16 NCT6776_REG_FAN_PULSES[NUM_FAN] = {
0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {
0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e };
static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0x18, 0x152, 0x252, 0x628, 0x629, 0x62A };
static const char *const nct6776_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"SMBUSMASTER 2",
"SMBUSMASTER 3",
"SMBUSMASTER 4",
"SMBUSMASTER 5",
"SMBUSMASTER 6",
"SMBUSMASTER 7",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"PCH_DIM0_TEMP",
"PCH_DIM1_TEMP",
"PCH_DIM2_TEMP",
"PCH_DIM3_TEMP",
"BYTE_TEMP"
};
#define NCT6776_TEMP_MASK 0x007ffffe
#define NCT6776_VIRT_TEMP_MASK 0x00000000
static const u16 NCT6776_REG_TEMP_ALTERNATE[32] = {
[14] = 0x401,
[15] = 0x402,
[16] = 0x404,
};
static const u16 NCT6776_REG_TEMP_CRIT[32] = {
[11] = 0x709,
[12] = 0x70a,
};
static const u16 NCT6776_REG_TSI_TEMP[] = {
0x409, 0x40b, 0x40d, 0x40f, 0x411, 0x413, 0x415, 0x417 };
/* NCT6779 specific data */
static const u16 NCT6779_REG_IN[] = {
0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487,
0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e };
static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = {
0x459, 0x45A, 0x45B, 0x568 };
static const s8 NCT6779_ALARM_BITS[] = {
0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
-1, /* unused */
6, 7, 11, 10, 23, /* fan1..fan5 */
-1, -1, -1, /* unused */
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, 9 }; /* intrusion0, intrusion1 */
static const s8 NCT6779_BEEP_BITS[] = {
0, 1, 2, 3, 4, 5, 6, 7, /* in0.. in7 */
8, 9, 10, 11, 12, 13, 14, /* in8..in14 */
24, /* global beep enable */
25, 26, 27, 28, 29, /* fan1..fan5 */
-1, -1, -1, /* unused */
16, 17, -1, -1, -1, -1, /* temp1..temp6 */
30, 31 }; /* intrusion0, intrusion1 */
static const u16 NCT6779_REG_FAN[] = {
0x4c0, 0x4c2, 0x4c4, 0x4c6, 0x4c8, 0x4ca, 0x4ce };
static const u16 NCT6779_REG_FAN_PULSES[NUM_FAN] = {
0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0x64f };
static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
0x136, 0x236, 0x336, 0x836, 0x936, 0xa36, 0xb36 };
#define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
static const u16 NCT6779_REG_CRITICAL_PWM[] = {
0x137, 0x237, 0x337, 0x837, 0x937, 0xa37, 0xb37 };
static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
0x18, 0x152 };
static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
0x3a, 0x153 };
static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
0x39, 0x155 };
static const u16 NCT6779_REG_TEMP_OFFSET[] = {
0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c };
static const char *const nct6779_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN0",
"AUXTIN1",
"AUXTIN2",
"AUXTIN3",
"",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"SMBUSMASTER 2",
"SMBUSMASTER 3",
"SMBUSMASTER 4",
"SMBUSMASTER 5",
"SMBUSMASTER 6",
"SMBUSMASTER 7",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"PCH_DIM0_TEMP",
"PCH_DIM1_TEMP",
"PCH_DIM2_TEMP",
"PCH_DIM3_TEMP",
"BYTE_TEMP",
"",
"",
"",
"",
"Virtual_TEMP"
};
#define NCT6779_TEMP_MASK 0x07ffff7e
#define NCT6779_VIRT_TEMP_MASK 0x00000000
#define NCT6791_TEMP_MASK 0x87ffff7e
#define NCT6791_VIRT_TEMP_MASK 0x80000000
static const u16 NCT6779_REG_TEMP_ALTERNATE[32]
= { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
0x408, 0 };
static const u16 NCT6779_REG_TEMP_CRIT[32] = {
[15] = 0x709,
[16] = 0x70a,
};
/* NCT6791 specific data */
static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[NUM_FAN] = { 0, 0x239 };
static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[NUM_FAN] = { 0, 0x23a };
static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[NUM_FAN] = { 0, 0x23b };
static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[NUM_FAN] = { 0, 0x23c };
static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[NUM_FAN] = { 0, 0x23d };
static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[NUM_FAN] = { 0, 0x23e };
static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
0x459, 0x45A, 0x45B, 0x568, 0x45D };
static const s8 NCT6791_ALARM_BITS[] = {
0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
17, 24, 25, 26, 27, 28, 29, /* in8..in14 */
-1, /* unused */
6, 7, 11, 10, 23, 33, /* fan1..fan6 */
-1, -1, /* unused */
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, 9 }; /* intrusion0, intrusion1 */
/* NCT6792/NCT6793 specific data */
static const u16 NCT6792_REG_TEMP_MON[] = {
0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d };
static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
static const char *const nct6792_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN0",
"AUXTIN1",
"AUXTIN2",
"AUXTIN3",
"",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"SMBUSMASTER 2",
"SMBUSMASTER 3",
"SMBUSMASTER 4",
"SMBUSMASTER 5",
"SMBUSMASTER 6",
"SMBUSMASTER 7",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"PCH_DIM0_TEMP",
"PCH_DIM1_TEMP",
"PCH_DIM2_TEMP",
"PCH_DIM3_TEMP",
"BYTE_TEMP",
"PECI Agent 0 Calibration",
"PECI Agent 1 Calibration",
"",
"",
"Virtual_TEMP"
};
#define NCT6792_TEMP_MASK 0x9fffff7e
#define NCT6792_VIRT_TEMP_MASK 0x80000000
static const char *const nct6793_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN0",
"AUXTIN1",
"AUXTIN2",
"AUXTIN3",
"",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"",
"",
"",
"",
"",
"",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"Agent0 Dimm0 ",
"Agent0 Dimm1",
"Agent1 Dimm0",
"Agent1 Dimm1",
"BYTE_TEMP0",
"BYTE_TEMP1",
"PECI Agent 0 Calibration",
"PECI Agent 1 Calibration",
"",
"Virtual_TEMP"
};
#define NCT6793_TEMP_MASK 0xbfff037e
#define NCT6793_VIRT_TEMP_MASK 0x80000000
static const char *const nct6795_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN0",
"AUXTIN1",
"AUXTIN2",
"AUXTIN3",
"",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"SMBUSMASTER 2",
"SMBUSMASTER 3",
"SMBUSMASTER 4",
"SMBUSMASTER 5",
"SMBUSMASTER 6",
"SMBUSMASTER 7",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"Agent0 Dimm0",
"Agent0 Dimm1",
"Agent1 Dimm0",
"Agent1 Dimm1",
"BYTE_TEMP0",
"BYTE_TEMP1",
"PECI Agent 0 Calibration",
"PECI Agent 1 Calibration",
"",
"Virtual_TEMP"
};
#define NCT6795_TEMP_MASK 0xbfffff7e
#define NCT6795_VIRT_TEMP_MASK 0x80000000
static const char *const nct6796_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN0",
"AUXTIN1",
"AUXTIN2",
"AUXTIN3",
"AUXTIN4",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"Virtual_TEMP",
"Virtual_TEMP",
"",
"",
"",
"",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"Agent0 Dimm0",
"Agent0 Dimm1",
"Agent1 Dimm0",
"Agent1 Dimm1",
"BYTE_TEMP0",
"BYTE_TEMP1",
"PECI Agent 0 Calibration",
"PECI Agent 1 Calibration",
"",
"Virtual_TEMP"
};
#define NCT6796_TEMP_MASK 0xbfff0ffe
#define NCT6796_VIRT_TEMP_MASK 0x80000c00
static const u16 NCT6796_REG_TSI_TEMP[] = { 0x409, 0x40b };
static const char *const nct6798_temp_label[] = {
"",
"SYSTIN",
"CPUTIN",
"AUXTIN0",
"AUXTIN1",
"AUXTIN2",
"AUXTIN3",
"AUXTIN4",
"SMBUSMASTER 0",
"SMBUSMASTER 1",
"Virtual_TEMP",
"Virtual_TEMP",
"",
"",
"",
"",
"PECI Agent 0",
"PECI Agent 1",
"PCH_CHIP_CPU_MAX_TEMP",
"PCH_CHIP_TEMP",
"PCH_CPU_TEMP",
"PCH_MCH_TEMP",
"Agent0 Dimm0",
"Agent0 Dimm1",
"Agent1 Dimm0",
"Agent1 Dimm1",
"BYTE_TEMP0",
"BYTE_TEMP1",
"PECI Agent 0 Calibration", /* undocumented */
"PECI Agent 1 Calibration", /* undocumented */
"",
"Virtual_TEMP"
};
#define NCT6798_TEMP_MASK 0xbfff0ffe
#define NCT6798_VIRT_TEMP_MASK 0x80000c00
/* NCT6102D/NCT6106D specific data */
#define NCT6106_REG_VBAT 0x318
#define NCT6106_REG_DIODE 0x319
#define NCT6106_DIODE_MASK 0x01
static const u16 NCT6106_REG_IN_MAX[] = {
0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9e, 0xa0, 0xa2 };
static const u16 NCT6106_REG_IN_MIN[] = {
0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9f, 0xa1, 0xa3 };
static const u16 NCT6106_REG_IN[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
static const u16 NCT6106_REG_TEMP_HYST[] = {
0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
static const u16 NCT6106_REG_TEMP_OVER[] = {
0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6 };
static const u16 NCT6106_REG_TEMP_CRIT_L[] = {
0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4 };
static const u16 NCT6106_REG_TEMP_CRIT_H[] = {
0xc1, 0xc5, 0xc9, 0xcf, 0xd1, 0xd5 };
static const u16 NCT6106_REG_TEMP_OFFSET[] = { 0x311, 0x312, 0x313 };
static const u16 NCT6106_REG_TEMP_CONFIG[] = {
0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc };
static const u16 NCT6106_REG_FAN[] = { 0x20, 0x22, 0x24 };
static const u16 NCT6106_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4 };
static const u16 NCT6106_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6 };
static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4 };
static const u8 NCT6106_REG_PWM_MODE[] = { 0xf3, 0xf3, 0xf3 };
static const u8 NCT6106_PWM_MODE_MASK[] = { 0x01, 0x02, 0x04 };
static const u16 NCT6106_REG_PWM_READ[] = { 0x4a, 0x4b, 0x4c };
static const u16 NCT6106_REG_FAN_MODE[] = { 0x113, 0x123, 0x133 };
static const u16 NCT6106_REG_TEMP_SOURCE[] = {
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5 };
static const u16 NCT6106_REG_CRITICAL_TEMP[] = { 0x11a, 0x12a, 0x13a };
static const u16 NCT6106_REG_CRITICAL_TEMP_TOLERANCE[] = {
0x11b, 0x12b, 0x13b };
static const u16 NCT6106_REG_CRITICAL_PWM_ENABLE[] = { 0x11c, 0x12c, 0x13c };
#define NCT6106_CRITICAL_PWM_ENABLE_MASK 0x10
static const u16 NCT6106_REG_CRITICAL_PWM[] = { 0x11d, 0x12d, 0x13d };
static const u16 NCT6106_REG_FAN_STEP_UP_TIME[] = { 0x114, 0x124, 0x134 };
static const u16 NCT6106_REG_FAN_STEP_DOWN_TIME[] = { 0x115, 0x125, 0x135 };
static const u16 NCT6106_REG_FAN_STOP_OUTPUT[] = { 0x116, 0x126, 0x136 };
static const u16 NCT6106_REG_FAN_START_OUTPUT[] = { 0x117, 0x127, 0x137 };
static const u16 NCT6106_REG_FAN_STOP_TIME[] = { 0x118, 0x128, 0x138 };
static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 };
static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 };
static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x18b };
static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 };
static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 };
static const u16 NCT6106_REG_ALARM[NUM_REG_ALARM] = {
0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d };
static const s8 NCT6106_ALARM_BITS[] = {
0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
9, -1, -1, -1, -1, -1, -1, /* in8..in14 */
-1, /* unused */
32, 33, 34, -1, -1, /* fan1..fan5 */
-1, -1, -1, /* unused */
16, 17, 18, 19, 20, 21, /* temp1..temp6 */
48, -1 /* intrusion0, intrusion1 */
};
static const u16 NCT6106_REG_BEEP[NUM_REG_BEEP] = {
0x3c0, 0x3c1, 0x3c2, 0x3c3, 0x3c4 };
static const s8 NCT6106_BEEP_BITS[] = {
0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
32, /* global beep enable */
24, 25, 26, 27, 28, /* fan1..fan5 */
-1, -1, -1, /* unused */
16, 17, 18, 19, 20, 21, /* temp1..temp6 */
34, -1 /* intrusion0, intrusion1 */
};
static const u16 NCT6106_REG_TEMP_ALTERNATE[32] = {
[14] = 0x51,
[15] = 0x52,
[16] = 0x54,
};
static const u16 NCT6106_REG_TEMP_CRIT[32] = {
[11] = 0x204,
[12] = 0x205,
};
static const u16 NCT6106_REG_TSI_TEMP[] = { 0x59, 0x5b, 0x5d, 0x5f, 0x61, 0x63, 0x65, 0x67 };
/* NCT6112D/NCT6114D/NCT6116D specific data */
static const u16 NCT6116_REG_FAN[] = { 0x20, 0x22, 0x24, 0x26, 0x28 };
static const u16 NCT6116_REG_FAN_MIN[] = { 0xe0, 0xe2, 0xe4, 0xe6, 0xe8 };
static const u16 NCT6116_REG_FAN_PULSES[] = { 0xf6, 0xf6, 0xf6, 0xf6, 0xf5 };
static const u16 NCT6116_FAN_PULSE_SHIFT[] = { 0, 2, 4, 6, 6 };
static const u16 NCT6116_REG_PWM[] = { 0x119, 0x129, 0x139, 0x199, 0x1a9 };
static const u16 NCT6116_REG_FAN_MODE[] = { 0x113, 0x123, 0x133, 0x193, 0x1a3 };
static const u16 NCT6116_REG_TEMP_SEL[] = { 0x110, 0x120, 0x130, 0x190, 0x1a0 };
static const u16 NCT6116_REG_TEMP_SOURCE[] = {
0xb0, 0xb1, 0xb2 };
static const u16 NCT6116_REG_CRITICAL_TEMP[] = {
0x11a, 0x12a, 0x13a, 0x19a, 0x1aa };
static const u16 NCT6116_REG_CRITICAL_TEMP_TOLERANCE[] = {
0x11b, 0x12b, 0x13b, 0x19b, 0x1ab };
static const u16 NCT6116_REG_CRITICAL_PWM_ENABLE[] = {
0x11c, 0x12c, 0x13c, 0x19c, 0x1ac };
static const u16 NCT6116_REG_CRITICAL_PWM[] = {
0x11d, 0x12d, 0x13d, 0x19d, 0x1ad };
static const u16 NCT6116_REG_FAN_STEP_UP_TIME[] = {
0x114, 0x124, 0x134, 0x194, 0x1a4 };
static const u16 NCT6116_REG_FAN_STEP_DOWN_TIME[] = {
0x115, 0x125, 0x135, 0x195, 0x1a5 };
static const u16 NCT6116_REG_FAN_STOP_OUTPUT[] = {
0x116, 0x126, 0x136, 0x196, 0x1a6 };
static const u16 NCT6116_REG_FAN_START_OUTPUT[] = {
0x117, 0x127, 0x137, 0x197, 0x1a7 };
static const u16 NCT6116_REG_FAN_STOP_TIME[] = {
0x118, 0x128, 0x138, 0x198, 0x1a8 };
static const u16 NCT6116_REG_TOLERANCE_H[] = {
0x112, 0x122, 0x132, 0x192, 0x1a2 };
static const u16 NCT6116_REG_TARGET[] = {
0x111, 0x121, 0x131, 0x191, 0x1a1 };
static const u16 NCT6116_REG_AUTO_TEMP[] = {
0x160, 0x170, 0x180, 0x1d0, 0x1e0 };
static const u16 NCT6116_REG_AUTO_PWM[] = {
0x164, 0x174, 0x184, 0x1d4, 0x1e4 };
static const s8 NCT6116_ALARM_BITS[] = {
0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
9, -1, -1, -1, -1, -1, -1, /* in8..in9 */
-1, /* unused */
32, 33, 34, 35, 36, /* fan1..fan5 */
-1, -1, -1, /* unused */
16, 17, 18, -1, -1, -1, /* temp1..temp6 */
48, -1 /* intrusion0, intrusion1 */
};
static const s8 NCT6116_BEEP_BITS[] = {
0, 1, 2, 3, 4, 5, 7, 8, /* in0.. in7 */
9, 10, 11, 12, -1, -1, -1, /* in8..in14 */
32, /* global beep enable */
24, 25, 26, 27, 28, /* fan1..fan5 */
-1, -1, -1, /* unused */
16, 17, 18, -1, -1, -1, /* temp1..temp6 */
34, -1 /* intrusion0, intrusion1 */
};
static const u16 NCT6116_REG_TSI_TEMP[] = { 0x59, 0x5b };
static enum pwm_enable reg_to_pwm_enable(int pwm, int mode)
{
if (mode == 0 && pwm == 255)
return off;
return mode + 1;
}
static int pwm_enable_to_reg(enum pwm_enable mode)
{
if (mode == off)
return 0;
return mode - 1;
}
/*
* Conversions
*/
/* 1 is DC mode, output in ms */
static unsigned int step_time_from_reg(u8 reg, u8 mode)
{
return mode ? 400 * reg : 100 * reg;
}
static u8 step_time_to_reg(unsigned int msec, u8 mode)
{
return clamp_val((mode ? (msec + 200) / 400 :
(msec + 50) / 100), 1, 255);
}
static unsigned int fan_from_reg8(u16 reg, unsigned int divreg)
{
if (reg == 0 || reg == 255)
return 0;
return 1350000U / (reg << divreg);
}
static unsigned int fan_from_reg13(u16 reg, unsigned int divreg)
{
if ((reg & 0xff1f) == 0xff1f)
return 0;
reg = (reg & 0x1f) | ((reg & 0xff00) >> 3);
if (reg == 0)
return 0;
return 1350000U / reg;
}
static unsigned int fan_from_reg16(u16 reg, unsigned int divreg)
{
if (reg == 0 || reg == 0xffff)
return 0;
/*
* Even though the registers are 16 bit wide, the fan divisor
* still applies.
*/
return 1350000U / (reg << divreg);
}
static unsigned int fan_from_reg_rpm(u16 reg, unsigned int divreg)
{
return reg;
}
static u16 fan_to_reg(u32 fan, unsigned int divreg)
{
if (!fan)
return 0;
return (1350000U / fan) >> divreg;
}
static inline unsigned int
div_from_reg(u8 reg)
{
return BIT(reg);
}
/*
* Some of the voltage inputs have internal scaling, the tables below
* contain 8 (the ADC LSB in mV) * scaling factor * 100
*/
static const u16 scale_in[15] = {
800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800,
800, 800
};
static inline long in_from_reg(u8 reg, u8 nr)
{
return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100);
}
static inline u8 in_to_reg(u32 val, u8 nr)
{
return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255);
}
/* TSI temperatures are in 8.3 format */
static inline unsigned int tsi_temp_from_reg(unsigned int reg)
{
return (reg >> 5) * 125;
}
/*
* Data structures and manipulation thereof
*/
struct sensor_device_template {
struct device_attribute dev_attr;
union {
struct {
u8 nr;
u8 index;
} s;
int index;
} u;
bool s2; /* true if both index and nr are used */
};
struct sensor_device_attr_u {
union {
struct sensor_device_attribute a1;
struct sensor_device_attribute_2 a2;
} u;
char name[32];
};
#define __TEMPLATE_ATTR(_template, _mode, _show, _store) { \
.attr = {.name = _template, .mode = _mode }, \
.show = _show, \
.store = _store, \
}
#define SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, _index) \
{ .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
.u.index = _index, \
.s2 = false }
#define SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
_nr, _index) \
{ .dev_attr = __TEMPLATE_ATTR(_template, _mode, _show, _store), \
.u.s.index = _index, \
.u.s.nr = _nr, \
.s2 = true }
#define SENSOR_TEMPLATE(_name, _template, _mode, _show, _store, _index) \
static struct sensor_device_template sensor_dev_template_##_name \
= SENSOR_DEVICE_TEMPLATE(_template, _mode, _show, _store, \
_index)
#define SENSOR_TEMPLATE_2(_name, _template, _mode, _show, _store, \
_nr, _index) \
static struct sensor_device_template sensor_dev_template_##_name \
= SENSOR_DEVICE_TEMPLATE_2(_template, _mode, _show, _store, \
_nr, _index)
struct sensor_template_group {
struct sensor_device_template **templates;
umode_t (*is_visible)(struct kobject *, struct attribute *, int);
int base;
};
static int nct6775_add_template_attr_group(struct device *dev, struct nct6775_data *data,
const struct sensor_template_group *tg, int repeat)
{
struct attribute_group *group;
struct sensor_device_attr_u *su;
struct sensor_device_attribute *a;
struct sensor_device_attribute_2 *a2;
struct attribute **attrs;
struct sensor_device_template **t;
int i, count;
if (repeat <= 0)
return -EINVAL;
t = tg->templates;
for (count = 0; *t; t++, count++)
;
if (count == 0)
return -EINVAL;
group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
if (group == NULL)
return -ENOMEM;
attrs = devm_kcalloc(dev, repeat * count + 1, sizeof(*attrs),
GFP_KERNEL);
if (attrs == NULL)
return -ENOMEM;
su = devm_kzalloc(dev, array3_size(repeat, count, sizeof(*su)),
GFP_KERNEL);
if (su == NULL)
return -ENOMEM;
group->attrs = attrs;
group->is_visible = tg->is_visible;
for (i = 0; i < repeat; i++) {
t = tg->templates;
while (*t != NULL) {
snprintf(su->name, sizeof(su->name),
(*t)->dev_attr.attr.name, tg->base + i);
if ((*t)->s2) {
a2 = &su->u.a2;
sysfs_attr_init(&a2->dev_attr.attr);
a2->dev_attr.attr.name = su->name;
a2->nr = (*t)->u.s.nr + i;
a2->index = (*t)->u.s.index;
a2->dev_attr.attr.mode =
(*t)->dev_attr.attr.mode;
a2->dev_attr.show = (*t)->dev_attr.show;
a2->dev_attr.store = (*t)->dev_attr.store;
*attrs = &a2->dev_attr.attr;
} else {
a = &su->u.a1;
sysfs_attr_init(&a->dev_attr.attr);
a->dev_attr.attr.name = su->name;
a->index = (*t)->u.index + i;
a->dev_attr.attr.mode =
(*t)->dev_attr.attr.mode;
a->dev_attr.show = (*t)->dev_attr.show;
a->dev_attr.store = (*t)->dev_attr.store;
*attrs = &a->dev_attr.attr;
}
attrs++;
su++;
t++;
}
}
return nct6775_add_attr_group(data, group);
}
bool nct6775_reg_is_word_sized(struct nct6775_data *data, u16 reg)
{
switch (data->kind) {
case nct6106:
return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
(reg >= 0x59 && reg < 0x69 && (reg & 1)) ||
reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
reg == 0x111 || reg == 0x121 || reg == 0x131;
case nct6116:
return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
reg == 0x26 || reg == 0x28 || reg == 0x59 || reg == 0x5b ||
reg == 0xe0 || reg == 0xe2 || reg == 0xe4 || reg == 0xe6 ||
reg == 0xe8 || reg == 0x111 || reg == 0x121 || reg == 0x131 ||
reg == 0x191 || reg == 0x1a1;
case nct6775:
return (((reg & 0xff00) == 0x100 ||
(reg & 0xff00) == 0x200) &&
((reg & 0x00ff) == 0x50 ||
(reg & 0x00ff) == 0x53 ||
(reg & 0x00ff) == 0x55)) ||
(reg & 0xfff0) == 0x630 ||
reg == 0x640 || reg == 0x642 ||
reg == 0x662 || reg == 0x669 ||
((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
reg == 0x73 || reg == 0x75 || reg == 0x77;
case nct6776:
return (((reg & 0xff00) == 0x100 ||
(reg & 0xff00) == 0x200) &&
((reg & 0x00ff) == 0x50 ||
(reg & 0x00ff) == 0x53 ||
(reg & 0x00ff) == 0x55)) ||
(reg & 0xfff0) == 0x630 ||
reg == 0x402 ||
(reg >= 0x409 && reg < 0x419 && (reg & 1)) ||
reg == 0x640 || reg == 0x642 ||
((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
reg == 0x73 || reg == 0x75 || reg == 0x77;
case nct6779:
case nct6791:
case nct6792:
case nct6793:
case nct6795:
case nct6796:
case nct6797:
case nct6798:
return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
(reg & 0xfff0) == 0x4c0 ||
reg == 0x402 ||
(reg >= 0x409 && reg < 0x419 && (reg & 1)) ||
reg == 0x63a || reg == 0x63c || reg == 0x63e ||
reg == 0x640 || reg == 0x642 || reg == 0x64a ||
reg == 0x64c ||
reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
reg == 0x7b || reg == 0x7d;
}
return false;
}
EXPORT_SYMBOL_GPL(nct6775_reg_is_word_sized);
/* We left-align 8-bit temperature values to make the code simpler */
static int nct6775_read_temp(struct nct6775_data *data, u16 reg, u16 *val)
{
int err;
err = nct6775_read_value(data, reg, val);
if (err)
return err;
if (!nct6775_reg_is_word_sized(data, reg))
*val <<= 8;
return 0;
}
/* This function assumes that the caller holds data->update_lock */
static int nct6775_write_fan_div(struct nct6775_data *data, int nr)
{
u16 reg;
int err;
u16 fandiv_reg = nr < 2 ? NCT6775_REG_FANDIV1 : NCT6775_REG_FANDIV2;
unsigned int oddshift = (nr & 1) * 4; /* masks shift by four if nr is odd */
err = nct6775_read_value(data, fandiv_reg, &reg);
if (err)
return err;
reg &= 0x70 >> oddshift;
reg |= data->fan_div[nr] & (0x7 << oddshift);
return nct6775_write_value(data, fandiv_reg, reg);
}
static int nct6775_write_fan_div_common(struct nct6775_data *data, int nr)
{
if (data->kind == nct6775)
return nct6775_write_fan_div(data, nr);
return 0;
}
static int nct6775_update_fan_div(struct nct6775_data *data)
{
int err;
u16 i;
err = nct6775_read_value(data, NCT6775_REG_FANDIV1, &i);
if (err)
return err;
data->fan_div[0] = i & 0x7;
data->fan_div[1] = (i & 0x70) >> 4;
err = nct6775_read_value(data, NCT6775_REG_FANDIV2, &i);
if (err)
return err;
data->fan_div[2] = i & 0x7;
if (data->has_fan & BIT(3))
data->fan_div[3] = (i & 0x70) >> 4;
return 0;
}
static int nct6775_update_fan_div_common(struct nct6775_data *data)
{
if (data->kind == nct6775)
return nct6775_update_fan_div(data);
return 0;
}
static int nct6775_init_fan_div(struct nct6775_data *data)
{
int i, err;
err = nct6775_update_fan_div_common(data);
if (err)
return err;
/*
* For all fans, start with highest divider value if the divider
* register is not initialized. This ensures that we get a
* reading from the fan count register, even if it is not optimal.
* We'll compute a better divider later on.
*/
for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) {
if (!(data->has_fan & BIT(i)))
continue;
if (data->fan_div[i] == 0) {
data->fan_div[i] = 7;
err = nct6775_write_fan_div_common(data, i);
if (err)
return err;
}
}
return 0;
}
static int nct6775_init_fan_common(struct device *dev,
struct nct6775_data *data)
{
int i, err;
u16 reg;
if (data->has_fan_div) {
err = nct6775_init_fan_div(data);
if (err)
return err;
}
/*
* If fan_min is not set (0), set it to 0xff to disable it. This
* prevents the unnecessary warning when fanX_min is reported as 0.
*/
for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
if (data->has_fan_min & BIT(i)) {
err = nct6775_read_value(data, data->REG_FAN_MIN[i], &reg);
if (err)
return err;
if (!reg) {
err = nct6775_write_value(data, data->REG_FAN_MIN[i],
data->has_fan_div ? 0xff : 0xff1f);
if (err)
return err;
}
}
}
return 0;
}
static int nct6775_select_fan_div(struct device *dev,
struct nct6775_data *data, int nr, u16 reg)
{
int err;
u8 fan_div = data->fan_div[nr];
u16 fan_min;
if (!data->has_fan_div)
return 0;
/*
* If we failed to measure the fan speed, or the reported value is not
* in the optimal range, and the clock divider can be modified,
* let's try that for next time.
*/
if (reg == 0x00 && fan_div < 0x07)
fan_div++;
else if (reg != 0x00 && reg < 0x30 && fan_div > 0)
fan_div--;
if (fan_div != data->fan_div[nr]) {
dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n",
nr + 1, div_from_reg(data->fan_div[nr]),
div_from_reg(fan_div));
/* Preserve min limit if possible */
if (data->has_fan_min & BIT(nr)) {
fan_min = data->fan_min[nr];
if (fan_div > data->fan_div[nr]) {
if (fan_min != 255 && fan_min > 1)
fan_min >>= 1;
} else {
if (fan_min != 255) {
fan_min <<= 1;
if (fan_min > 254)
fan_min = 254;
}
}
if (fan_min != data->fan_min[nr]) {
data->fan_min[nr] = fan_min;
err = nct6775_write_value(data, data->REG_FAN_MIN[nr], fan_min);
if (err)
return err;
}
}
data->fan_div[nr] = fan_div;
err = nct6775_write_fan_div_common(data, nr);
if (err)
return err;
}
return 0;
}
static int nct6775_update_pwm(struct device *dev)
{
struct nct6775_data *data = dev_get_drvdata(dev);
int i, j, err;
u16 fanmodecfg, reg;
bool duty_is_dc;
for (i = 0; i < data->pwm_num; i++) {
if (!(data->has_pwm & BIT(i)))
continue;
err = nct6775_read_value(data, data->REG_PWM_MODE[i], &reg);
if (err)
return err;
duty_is_dc = data->REG_PWM_MODE[i] && (reg & data->PWM_MODE_MASK[i]);
data->pwm_mode[i] = !duty_is_dc;
err = nct6775_read_value(data, data->REG_FAN_MODE[i], &fanmodecfg);
if (err)
return err;
for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
err = nct6775_read_value(data, data->REG_PWM[j][i], &reg);
if (err)
return err;
data->pwm[j][i] = reg;
}
}
data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i],
(fanmodecfg >> 4) & 7);
if (!data->temp_tolerance[0][i] ||
data->pwm_enable[i] != speed_cruise)
data->temp_tolerance[0][i] = fanmodecfg & 0x0f;
if (!data->target_speed_tolerance[i] ||
data->pwm_enable[i] == speed_cruise) {
u8 t = fanmodecfg & 0x0f;
if (data->REG_TOLERANCE_H) {
err = nct6775_read_value(data, data->REG_TOLERANCE_H[i], &reg);
if (err)
return err;
t |= (reg & 0x70) >> 1;
}
data->target_speed_tolerance[i] = t;
}
err = nct6775_read_value(data, data->REG_CRITICAL_TEMP_TOLERANCE[i], &reg);
if (err)
return err;
data->temp_tolerance[1][i] = reg;
err = nct6775_read_value(data, data->REG_TEMP_SEL[i], &reg);
if (err)
return err;
data->pwm_temp_sel[i] = reg & 0x1f;
/* If fan can stop, report floor as 0 */
if (reg & 0x80)
data->pwm[2][i] = 0;
if (!data->REG_WEIGHT_TEMP_SEL[i])
continue;
err = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i], &reg);
if (err)
return err;
data->pwm_weight_temp_sel[i] = reg & 0x1f;
/* If weight is disabled, report weight source as 0 */
if (!(reg & 0x80))
data->pwm_weight_temp_sel[i] = 0;
/* Weight temp data */
for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
err = nct6775_read_value(data, data->REG_WEIGHT_TEMP[j][i], &reg);
if (err)
return err;
data->weight_temp[j][i] = reg;
}
}
return 0;
}
static int nct6775_update_pwm_limits(struct device *dev)
{
struct nct6775_data *data = dev_get_drvdata(dev);
int i, j, err;
u16 reg, reg_t;
for (i = 0; i < data->pwm_num; i++) {
if (!(data->has_pwm & BIT(i)))
continue;
for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
err = nct6775_read_value(data, data->REG_FAN_TIME[j][i], &reg);
if (err)
return err;
data->fan_time[j][i] = reg;
}
err = nct6775_read_value(data, data->REG_TARGET[i], &reg_t);
if (err)
return err;
/* Update only in matching mode or if never updated */
if (!data->target_temp[i] ||
data->pwm_enable[i] == thermal_cruise)
data->target_temp[i] = reg_t & data->target_temp_mask;
if (!data->target_speed[i] ||
data->pwm_enable[i] == speed_cruise) {
if (data->REG_TOLERANCE_H) {
err = nct6775_read_value(data, data->REG_TOLERANCE_H[i], &reg);
if (err)
return err;
reg_t |= (reg & 0x0f) << 8;
}
data->target_speed[i] = reg_t;
}
for (j = 0; j < data->auto_pwm_num; j++) {
err = nct6775_read_value(data, NCT6775_AUTO_PWM(data, i, j), &reg);
if (err)
return err;
data->auto_pwm[i][j] = reg;
err = nct6775_read_value(data, NCT6775_AUTO_TEMP(data, i, j), &reg);
if (err)
return err;
data->auto_temp[i][j] = reg;
}
/* critical auto_pwm temperature data */
err = nct6775_read_value(data, data->REG_CRITICAL_TEMP[i], &reg);
if (err)
return err;
data->auto_temp[i][data->auto_pwm_num] = reg;
switch (data->kind) {
case nct6775:
err = nct6775_read_value(data, NCT6775_REG_CRITICAL_ENAB[i], &reg);
if (err)
return err;
data->auto_pwm[i][data->auto_pwm_num] =
(reg & 0x02) ? 0xff : 0x00;
break;
case nct6776:
data->auto_pwm[i][data->auto_pwm_num] = 0xff;
break;
case nct6106:
case nct6116:
case nct6779:
case nct6791:
case nct6792:
case nct6793:
case nct6795:
case nct6796:
case nct6797:
case nct6798:
err = nct6775_read_value(data, data->REG_CRITICAL_PWM_ENABLE[i], &reg);
if (err)
return err;
if (reg & data->CRITICAL_PWM_ENABLE_MASK) {
err = nct6775_read_value(data, data->REG_CRITICAL_PWM[i], &reg);
if (err)
return err;
} else {
reg = 0xff;
}
data->auto_pwm[i][data->auto_pwm_num] = reg;
break;
}
}
return 0;
}
struct nct6775_data *nct6775_update_device(struct device *dev)
{
struct nct6775_data *data = dev_get_drvdata(dev);
int i, j, err = 0;
u16 reg;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
/* Fan clock dividers */
err = nct6775_update_fan_div_common(data);
if (err)
goto out;
/* Measured voltages and limits */
for (i = 0; i < data->in_num; i++) {
if (!(data->have_in & BIT(i)))
continue;
err = nct6775_read_value(data, data->REG_VIN[i], &reg);
if (err)
goto out;
data->in[i][0] = reg;
err = nct6775_read_value(data, data->REG_IN_MINMAX[0][i], &reg);
if (err)
goto out;
data->in[i][1] = reg;
err = nct6775_read_value(data, data->REG_IN_MINMAX[1][i], &reg);
if (err)
goto out;
data->in[i][2] = reg;
}
/* Measured fan speeds and limits */
for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
if (!(data->has_fan & BIT(i)))
continue;
err = nct6775_read_value(data, data->REG_FAN[i], &reg);
if (err)
goto out;
data->rpm[i] = data->fan_from_reg(reg,
data->fan_div[i]);
if (data->has_fan_min & BIT(i)) {
err = nct6775_read_value(data, data->REG_FAN_MIN[i], &reg);
if (err)
goto out;
data->fan_min[i] = reg;
}
if (data->REG_FAN_PULSES[i]) {
err = nct6775_read_value(data, data->REG_FAN_PULSES[i], &reg);
if (err)
goto out;
data->fan_pulses[i] = (reg >> data->FAN_PULSE_SHIFT[i]) & 0x03;
}
err = nct6775_select_fan_div(dev, data, i, reg);
if (err)
goto out;
}
err = nct6775_update_pwm(dev);
if (err)
goto out;
err = nct6775_update_pwm_limits(dev);
if (err)
goto out;
/* Measured temperatures and limits */
for (i = 0; i < NUM_TEMP; i++) {
if (!(data->have_temp & BIT(i)))
continue;
for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
if (data->reg_temp[j][i]) {
err = nct6775_read_temp(data, data->reg_temp[j][i], &reg);
if (err)
goto out;
data->temp[j][i] = reg;
}
}
if (i >= NUM_TEMP_FIXED ||
!(data->have_temp_fixed & BIT(i)))
continue;
err = nct6775_read_value(data, data->REG_TEMP_OFFSET[i], &reg);
if (err)
goto out;
data->temp_offset[i] = reg;
}
for (i = 0; i < NUM_TSI_TEMP; i++) {
if (!(data->have_tsi_temp & BIT(i)))
continue;
err = nct6775_read_value(data, data->REG_TSI_TEMP[i], &reg);
if (err)
goto out;
data->tsi_temp[i] = reg;
}
data->alarms = 0;
for (i = 0; i < NUM_REG_ALARM; i++) {
u16 alarm;
if (!data->REG_ALARM[i])
continue;
err = nct6775_read_value(data, data->REG_ALARM[i], &alarm);
if (err)
goto out;
data->alarms |= ((u64)alarm) << (i << 3);
}
data->beeps = 0;
for (i = 0; i < NUM_REG_BEEP; i++) {
u16 beep;
if (!data->REG_BEEP[i])
continue;
err = nct6775_read_value(data, data->REG_BEEP[i], &beep);
if (err)
goto out;
data->beeps |= ((u64)beep) << (i << 3);
}
data->last_updated = jiffies;
data->valid = true;
}
out:
mutex_unlock(&data->update_lock);
return err ? ERR_PTR(err) : data;
}
EXPORT_SYMBOL_GPL(nct6775_update_device);
/*
* Sysfs callback functions
*/
static ssize_t
show_in_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int index = sattr->index;
int nr = sattr->nr;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr));
}
static ssize_t
store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int index = sattr->index;
int nr = sattr->nr;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
mutex_lock(&data->update_lock);
data->in[nr][index] = in_to_reg(val, nr);
err = nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr], data->in[nr][index]);
mutex_unlock(&data->update_lock);
return err ? : count;
}
ssize_t
nct6775_show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr;
if (IS_ERR(data))
return PTR_ERR(data);
nr = data->ALARM_BITS[sattr->index];
return sprintf(buf, "%u\n",
(unsigned int)((data->alarms >> nr) & 0x01));
}
EXPORT_SYMBOL_GPL(nct6775_show_alarm);
static int find_temp_source(struct nct6775_data *data, int index, int count)
{
int source = data->temp_src[index];
int nr, err;
for (nr = 0; nr < count; nr++) {
u16 src;
err = nct6775_read_value(data, data->REG_TEMP_SOURCE[nr], &src);
if (err)
return err;
if ((src & 0x1f) == source)
return nr;
}
return -ENODEV;
}
static ssize_t
show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6775_data *data = nct6775_update_device(dev);
unsigned int alarm = 0;
int nr;
if (IS_ERR(data))
return PTR_ERR(data);
/*
* For temperatures, there is no fixed mapping from registers to alarm
* bits. Alarm bits are determined by the temperature source mapping.
*/
nr = find_temp_source(data, sattr->index, data->num_temp_alarms);
if (nr >= 0) {
int bit = data->ALARM_BITS[nr + TEMP_ALARM_BASE];
alarm = (data->alarms >> bit) & 0x01;
}
return sprintf(buf, "%u\n", alarm);
}
ssize_t
nct6775_show_beep(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6775_data *data = nct6775_update_device(dev);
int nr;
if (IS_ERR(data))
return PTR_ERR(data);
nr = data->BEEP_BITS[sattr->index];
return sprintf(buf, "%u\n",
(unsigned int)((data->beeps >> nr) & 0x01));
}
EXPORT_SYMBOL_GPL(nct6775_show_beep);
ssize_t
nct6775_store_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct nct6775_data *data = dev_get_drvdata(dev);
int nr = data->BEEP_BITS[sattr->index];
int regindex = nr >> 3;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > 1)
return -EINVAL;
mutex_lock(&data->update_lock);
if (val)
data->beeps |= (1ULL << nr);
else
data->beeps &= ~(1ULL << nr);
err = nct6775_write_value(data, data->REG_BEEP[regindex],
(data->beeps >> (regindex << 3)) & 0xff);
mutex_unlock(&data->update_lock);
return err ? : count;
}
EXPORT_SYMBOL_GPL(nct6775_store_beep);
static ssize_t
show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct6775_data *data = nct6775_update_device(dev);
unsigned int beep = 0;
int nr;
if (IS_ERR(data))
return PTR_ERR(data);
/*
* For temperatures, there is no fixed mapping from registers to beep
* enable bits. Beep enable bits are determined by the temperature
* source mapping.
*/
nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
if (nr >= 0) {
int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
beep = (data->beeps >> bit) & 0x01;
}
return sprintf(buf, "%u\n", beep);
}
static ssize_t
store_temp_beep(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
struct nct6775_data *data = dev_get_drvdata(dev);
int nr, bit, regindex;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > 1)
return -EINVAL;
nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
if (nr < 0)
return nr;
bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
regindex = bit >> 3;
mutex_lock(&data->update_lock);
if (val)
data->beeps |= (1ULL << bit);
else
data->beeps &= ~(1ULL << bit);
err = nct6775_write_value(data, data->REG_BEEP[regindex],
(data->beeps >> (regindex << 3)) & 0xff);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static umode_t nct6775_in_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = kobj_to_dev(kobj);
struct nct6775_data *data = dev_get_drvdata(dev);
int in = index / 5; /* voltage index */
if (!(data->have_in & BIT(in)))
return 0;
return nct6775_attr_mode(data, attr);
}
SENSOR_TEMPLATE_2(in_input, "in%d_input", 0444, show_in_reg, NULL, 0, 0);
SENSOR_TEMPLATE(in_alarm, "in%d_alarm", 0444, nct6775_show_alarm, NULL, 0);
SENSOR_TEMPLATE(in_beep, "in%d_beep", 0644, nct6775_show_beep, nct6775_store_beep, 0);
SENSOR_TEMPLATE_2(in_min, "in%d_min", 0644, show_in_reg, store_in_reg, 0, 1);
SENSOR_TEMPLATE_2(in_max, "in%d_max", 0644, show_in_reg, store_in_reg, 0, 2);
/*
* nct6775_in_is_visible uses the index into the following array
* to determine if attributes should be created or not.
* Any change in order or content must be matched.
*/
static struct sensor_device_template *nct6775_attributes_in_template[] = {
&sensor_dev_template_in_input,
&sensor_dev_template_in_alarm,
&sensor_dev_template_in_beep,
&sensor_dev_template_in_min,
&sensor_dev_template_in_max,
NULL
};
static const struct sensor_template_group nct6775_in_template_group = {
.templates = nct6775_attributes_in_template,
.is_visible = nct6775_in_is_visible,
};
static ssize_t
show_fan(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->rpm[nr]);
}
static ssize_t
show_fan_min(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n",
data->fan_from_reg_min(data->fan_min[nr],
data->fan_div[nr]));
}
static ssize_t
show_fan_div(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
}
static ssize_t
store_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
unsigned int reg;
u8 new_div;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
mutex_lock(&data->update_lock);
if (!data->has_fan_div) {
/* NCT6776F or NCT6779D; we know this is a 13 bit register */
if (!val) {
val = 0xff1f;
} else {
if (val > 1350000U)
val = 135000U;
val = 1350000U / val;
val = (val & 0x1f) | ((val << 3) & 0xff00);
}
data->fan_min[nr] = val;
goto write_min; /* Leave fan divider alone */
}
if (!val) {
/* No min limit, alarm disabled */
data->fan_min[nr] = 255;
new_div = data->fan_div[nr]; /* No change */
dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
goto write_div;
}
reg = 1350000U / val;
if (reg >= 128 * 255) {
/*
* Speed below this value cannot possibly be represented,
* even with the highest divider (128)
*/
data->fan_min[nr] = 254;
new_div = 7; /* 128 == BIT(7) */
dev_warn(dev,
"fan%u low limit %lu below minimum %u, set to minimum\n",
nr + 1, val, data->fan_from_reg_min(254, 7));
} else if (!reg) {
/*
* Speed above this value cannot possibly be represented,
* even with the lowest divider (1)
*/
data->fan_min[nr] = 1;
new_div = 0; /* 1 == BIT(0) */
dev_warn(dev,
"fan%u low limit %lu above maximum %u, set to maximum\n",
nr + 1, val, data->fan_from_reg_min(1, 0));
} else {
/*
* Automatically pick the best divider, i.e. the one such
* that the min limit will correspond to a register value
* in the 96..192 range
*/
new_div = 0;
while (reg > 192 && new_div < 7) {
reg >>= 1;
new_div++;
}
data->fan_min[nr] = reg;
}
write_div:
/*
* Write both the fan clock divider (if it changed) and the new
* fan min (unconditionally)
*/
if (new_div != data->fan_div[nr]) {
dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
nr + 1, div_from_reg(data->fan_div[nr]),
div_from_reg(new_div));
data->fan_div[nr] = new_div;
err = nct6775_write_fan_div_common(data, nr);
if (err)
goto write_min;
/* Give the chip time to sample a new speed value */
data->last_updated = jiffies;
}
write_min:
err = nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int p;
if (IS_ERR(data))
return PTR_ERR(data);
p = data->fan_pulses[sattr->index];
return sprintf(buf, "%d\n", p ? : 4);
}
static ssize_t
store_fan_pulses(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
u16 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > 4)
return -EINVAL;
mutex_lock(&data->update_lock);
data->fan_pulses[nr] = val & 3;
err = nct6775_read_value(data, data->REG_FAN_PULSES[nr], &reg);
if (err)
goto out;
reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
err = nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
static umode_t nct6775_fan_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = kobj_to_dev(kobj);
struct nct6775_data *data = dev_get_drvdata(dev);
int fan = index / 6; /* fan index */
int nr = index % 6; /* attribute index */
if (!(data->has_fan & BIT(fan)))
return 0;
if (nr == 1 && data->ALARM_BITS[FAN_ALARM_BASE + fan] == -1)
return 0;
if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
return 0;
if (nr == 3 && !data->REG_FAN_PULSES[fan])
return 0;
if (nr == 4 && !(data->has_fan_min & BIT(fan)))
return 0;
if (nr == 5 && data->kind != nct6775)
return 0;
return nct6775_attr_mode(data, attr);
}
SENSOR_TEMPLATE(fan_input, "fan%d_input", 0444, show_fan, NULL, 0);
SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", 0444, nct6775_show_alarm, NULL, FAN_ALARM_BASE);
SENSOR_TEMPLATE(fan_beep, "fan%d_beep", 0644, nct6775_show_beep,
nct6775_store_beep, FAN_ALARM_BASE);
SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", 0644, show_fan_pulses, store_fan_pulses, 0);
SENSOR_TEMPLATE(fan_min, "fan%d_min", 0644, show_fan_min, store_fan_min, 0);
SENSOR_TEMPLATE(fan_div, "fan%d_div", 0444, show_fan_div, NULL, 0);
/*
* nct6775_fan_is_visible uses the index into the following array
* to determine if attributes should be created or not.
* Any change in order or content must be matched.
*/
static struct sensor_device_template *nct6775_attributes_fan_template[] = {
&sensor_dev_template_fan_input,
&sensor_dev_template_fan_alarm, /* 1 */
&sensor_dev_template_fan_beep, /* 2 */
&sensor_dev_template_fan_pulses,
&sensor_dev_template_fan_min, /* 4 */
&sensor_dev_template_fan_div, /* 5 */
NULL
};
static const struct sensor_template_group nct6775_fan_template_group = {
.templates = nct6775_attributes_fan_template,
.is_visible = nct6775_fan_is_visible,
.base = 1,
};
static ssize_t
show_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]);
}
static ssize_t
show_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr]));
}
static ssize_t
store_temp(struct device *dev, struct device_attribute *attr, const char *buf,
size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
int err;
long val;
err = kstrtol(buf, 10, &val);
if (err < 0)
return err;
mutex_lock(&data->update_lock);
data->temp[index][nr] = LM75_TEMP_TO_REG(val);
err = nct6775_write_temp(data, data->reg_temp[index][nr], data->temp[index][nr]);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000);
}
static ssize_t
store_temp_offset(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
long val;
int err;
err = kstrtol(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
mutex_lock(&data->update_lock);
data->temp_offset[nr] = val;
err = nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
}
static ssize_t
store_temp_type(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
u8 vbit, dbit;
u16 vbat, diode;
if (IS_ERR(data))
return PTR_ERR(data);
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val != 1 && val != 3 && val != 4)
return -EINVAL;
mutex_lock(&data->update_lock);
data->temp_type[nr] = val;
vbit = 0x02 << nr;
dbit = data->DIODE_MASK << nr;
err = nct6775_read_value(data, data->REG_VBAT, &vbat);
if (err)
goto out;
vbat &= ~vbit;
err = nct6775_read_value(data, data->REG_DIODE, &diode);
if (err)
goto out;
diode &= ~dbit;
switch (val) {
case 1: /* CPU diode (diode, current mode) */
vbat |= vbit;
diode |= dbit;
break;
case 3: /* diode, voltage mode */
vbat |= dbit;
break;
case 4: /* thermistor */
break;
}
err = nct6775_write_value(data, data->REG_VBAT, vbat);
if (err)
goto out;
err = nct6775_write_value(data, data->REG_DIODE, diode);
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
static umode_t nct6775_temp_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = kobj_to_dev(kobj);
struct nct6775_data *data = dev_get_drvdata(dev);
int temp = index / 10; /* temp index */
int nr = index % 10; /* attribute index */
if (!(data->have_temp & BIT(temp)))
return 0;
if (nr == 1 && !data->temp_label)
return 0;
if (nr == 2 && find_temp_source(data, temp, data->num_temp_alarms) < 0)
return 0; /* alarm */
if (nr == 3 && find_temp_source(data, temp, data->num_temp_beeps) < 0)
return 0; /* beep */
if (nr == 4 && !data->reg_temp[1][temp]) /* max */
return 0;
if (nr == 5 && !data->reg_temp[2][temp]) /* max_hyst */
return 0;
if (nr == 6 && !data->reg_temp[3][temp]) /* crit */
return 0;
if (nr == 7 && !data->reg_temp[4][temp]) /* lcrit */
return 0;
/* offset and type only apply to fixed sensors */
if (nr > 7 && !(data->have_temp_fixed & BIT(temp)))
return 0;
return nct6775_attr_mode(data, attr);
}
SENSOR_TEMPLATE_2(temp_input, "temp%d_input", 0444, show_temp, NULL, 0, 0);
SENSOR_TEMPLATE(temp_label, "temp%d_label", 0444, show_temp_label, NULL, 0);
SENSOR_TEMPLATE_2(temp_max, "temp%d_max", 0644, show_temp, store_temp, 0, 1);
SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", 0644, show_temp, store_temp, 0, 2);
SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", 0644, show_temp, store_temp, 0, 3);
SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", 0644, show_temp, store_temp, 0, 4);
SENSOR_TEMPLATE(temp_offset, "temp%d_offset", 0644, show_temp_offset, store_temp_offset, 0);
SENSOR_TEMPLATE(temp_type, "temp%d_type", 0644, show_temp_type, store_temp_type, 0);
SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", 0444, show_temp_alarm, NULL, 0);
SENSOR_TEMPLATE(temp_beep, "temp%d_beep", 0644, show_temp_beep, store_temp_beep, 0);
/*
* nct6775_temp_is_visible uses the index into the following array
* to determine if attributes should be created or not.
* Any change in order or content must be matched.
*/
static struct sensor_device_template *nct6775_attributes_temp_template[] = {
&sensor_dev_template_temp_input,
&sensor_dev_template_temp_label,
&sensor_dev_template_temp_alarm, /* 2 */
&sensor_dev_template_temp_beep, /* 3 */
&sensor_dev_template_temp_max, /* 4 */
&sensor_dev_template_temp_max_hyst, /* 5 */
&sensor_dev_template_temp_crit, /* 6 */
&sensor_dev_template_temp_lcrit, /* 7 */
&sensor_dev_template_temp_offset, /* 8 */
&sensor_dev_template_temp_type, /* 9 */
NULL
};
static const struct sensor_template_group nct6775_temp_template_group = {
.templates = nct6775_attributes_temp_template,
.is_visible = nct6775_temp_is_visible,
.base = 1,
};
static ssize_t show_tsi_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
if (IS_ERR(data))
return PTR_ERR(data);
return sysfs_emit(buf, "%u\n", tsi_temp_from_reg(data->tsi_temp[sattr->index]));
}
static ssize_t show_tsi_temp_label(struct device *dev, struct device_attribute *attr, char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
return sysfs_emit(buf, "TSI%d_TEMP\n", sattr->index);
}
SENSOR_TEMPLATE(tsi_temp_input, "temp%d_input", 0444, show_tsi_temp, NULL, 0);
SENSOR_TEMPLATE(tsi_temp_label, "temp%d_label", 0444, show_tsi_temp_label, NULL, 0);
static umode_t nct6775_tsi_temp_is_visible(struct kobject *kobj, struct attribute *attr,
int index)
{
struct device *dev = kobj_to_dev(kobj);
struct nct6775_data *data = dev_get_drvdata(dev);
int temp = index / 2;
return (data->have_tsi_temp & BIT(temp)) ? nct6775_attr_mode(data, attr) : 0;
}
/*
* The index calculation in nct6775_tsi_temp_is_visible() must be kept in
* sync with the size of this array.
*/
static struct sensor_device_template *nct6775_tsi_temp_template[] = {
&sensor_dev_template_tsi_temp_input,
&sensor_dev_template_tsi_temp_label,
NULL
};
static ssize_t
show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->pwm_mode[sattr->index]);
}
static ssize_t
store_pwm_mode(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
u16 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > 1)
return -EINVAL;
/* Setting DC mode (0) is not supported for all chips/channels */
if (data->REG_PWM_MODE[nr] == 0) {
if (!val)
return -EINVAL;
return count;
}
mutex_lock(&data->update_lock);
data->pwm_mode[nr] = val;
err = nct6775_read_value(data, data->REG_PWM_MODE[nr], &reg);
if (err)
goto out;
reg &= ~data->PWM_MODE_MASK[nr];
if (!val)
reg |= data->PWM_MODE_MASK[nr];
err = nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
int err;
u16 pwm;
if (IS_ERR(data))
return PTR_ERR(data);
/*
* For automatic fan control modes, show current pwm readings.
* Otherwise, show the configured value.
*/
if (index == 0 && data->pwm_enable[nr] > manual) {
err = nct6775_read_value(data, data->REG_PWM_READ[nr], &pwm);
if (err)
return err;
} else {
pwm = data->pwm[index][nr];
}
return sprintf(buf, "%d\n", pwm);
}
static ssize_t
store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 };
int maxval[7]
= { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 };
int err;
u16 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(val, minval[index], maxval[index]);
mutex_lock(&data->update_lock);
data->pwm[index][nr] = val;
err = nct6775_write_value(data, data->REG_PWM[index][nr], val);
if (err)
goto out;
if (index == 2) { /* floor: disable if val == 0 */
err = nct6775_read_value(data, data->REG_TEMP_SEL[nr], &reg);
if (err)
goto out;
reg &= 0x7f;
if (val)
reg |= 0x80;
err = nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
}
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
/* Returns 0 if OK, -EINVAL otherwise */
static int check_trip_points(struct nct6775_data *data, int nr)
{
int i;
for (i = 0; i < data->auto_pwm_num - 1; i++) {
if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
return -EINVAL;
}
for (i = 0; i < data->auto_pwm_num - 1; i++) {
if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
return -EINVAL;
}
/* validate critical temperature and pwm if enabled (pwm > 0) */
if (data->auto_pwm[nr][data->auto_pwm_num]) {
if (data->auto_temp[nr][data->auto_pwm_num - 1] >
data->auto_temp[nr][data->auto_pwm_num] ||
data->auto_pwm[nr][data->auto_pwm_num - 1] >
data->auto_pwm[nr][data->auto_pwm_num])
return -EINVAL;
}
return 0;
}
static int pwm_update_registers(struct nct6775_data *data, int nr)
{
u16 reg;
int err;
switch (data->pwm_enable[nr]) {
case off:
case manual:
break;
case speed_cruise:
err = nct6775_read_value(data, data->REG_FAN_MODE[nr], &reg);
if (err)
return err;
reg = (reg & ~data->tolerance_mask) |
(data->target_speed_tolerance[nr] & data->tolerance_mask);
err = nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
if (err)
return err;
err = nct6775_write_value(data, data->REG_TARGET[nr],
data->target_speed[nr] & 0xff);
if (err)
return err;
if (data->REG_TOLERANCE_H) {
reg = (data->target_speed[nr] >> 8) & 0x0f;
reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
err = nct6775_write_value(data, data->REG_TOLERANCE_H[nr], reg);
if (err)
return err;
}
break;
case thermal_cruise:
err = nct6775_write_value(data, data->REG_TARGET[nr], data->target_temp[nr]);
if (err)
return err;
fallthrough;
default:
err = nct6775_read_value(data, data->REG_FAN_MODE[nr], &reg);
if (err)
return err;
reg = (reg & ~data->tolerance_mask) |
data->temp_tolerance[0][nr];
err = nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
if (err)
return err;
break;
}
return 0;
}
static ssize_t
show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]);
}
static ssize_t
store_pwm_enable(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
u16 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > sf4)
return -EINVAL;
if (val == sf3 && data->kind != nct6775)
return -EINVAL;
if (val == sf4 && check_trip_points(data, nr)) {
dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n");
dev_err(dev, "Adjust trip points and try again\n");
return -EINVAL;
}
mutex_lock(&data->update_lock);
data->pwm_enable[nr] = val;
if (val == off) {
/*
* turn off pwm control: select manual mode, set pwm to maximum
*/
data->pwm[0][nr] = 255;
err = nct6775_write_value(data, data->REG_PWM[0][nr], 255);
if (err)
goto out;
}
err = pwm_update_registers(data, nr);
if (err)
goto out;
err = nct6775_read_value(data, data->REG_FAN_MODE[nr], &reg);
if (err)
goto out;
reg &= 0x0f;
reg |= pwm_enable_to_reg(val) << 4;
err = nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src)
{
int i, sel = 0;
for (i = 0; i < NUM_TEMP; i++) {
if (!(data->have_temp & BIT(i)))
continue;
if (src == data->temp_src[i]) {
sel = i + 1;
break;
}
}
return sprintf(buf, "%d\n", sel);
}
static ssize_t
show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int index = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]);
}
static ssize_t
store_pwm_temp_sel(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err, src;
u16 reg;
if (IS_ERR(data))
return PTR_ERR(data);
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val == 0 || val > NUM_TEMP)
return -EINVAL;
if (!(data->have_temp & BIT(val - 1)) || !data->temp_src[val - 1])
return -EINVAL;
mutex_lock(&data->update_lock);
src = data->temp_src[val - 1];
data->pwm_temp_sel[nr] = src;
err = nct6775_read_value(data, data->REG_TEMP_SEL[nr], &reg);
if (err)
goto out;
reg &= 0xe0;
reg |= src;
err = nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int index = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return show_pwm_temp_sel_common(data, buf,
data->pwm_weight_temp_sel[index]);
}
static ssize_t
store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err, src;
u16 reg;
if (IS_ERR(data))
return PTR_ERR(data);
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > NUM_TEMP)
return -EINVAL;
val = array_index_nospec(val, NUM_TEMP + 1);
if (val && (!(data->have_temp & BIT(val - 1)) ||
!data->temp_src[val - 1]))
return -EINVAL;
mutex_lock(&data->update_lock);
if (val) {
src = data->temp_src[val - 1];
data->pwm_weight_temp_sel[nr] = src;
err = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr], &reg);
if (err)
goto out;
reg &= 0xe0;
reg |= (src | 0x80);
err = nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
} else {
data->pwm_weight_temp_sel[nr] = 0;
err = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr], &reg);
if (err)
goto out;
reg &= 0x7f;
err = nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
}
out:
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_target_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000);
}
static ssize_t
store_target_temp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0,
data->target_temp_mask);
mutex_lock(&data->update_lock);
data->target_temp[nr] = val;
err = pwm_update_registers(data, nr);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_target_speed(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n",
fan_from_reg16(data->target_speed[nr],
data->fan_div[nr]));
}
static ssize_t
store_target_speed(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
u16 speed;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(val, 0, 1350000U);
speed = fan_to_reg(val, data->fan_div[nr]);
mutex_lock(&data->update_lock);
data->target_speed[nr] = speed;
err = pwm_update_registers(data, nr);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_temp_tolerance(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000);
}
static ssize_t
store_temp_tolerance(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
/* Limit tolerance as needed */
val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask);
mutex_lock(&data->update_lock);
data->temp_tolerance[index][nr] = val;
if (index)
err = pwm_update_registers(data, nr);
else
err = nct6775_write_value(data, data->REG_CRITICAL_TEMP_TOLERANCE[nr], val);
mutex_unlock(&data->update_lock);
return err ? : count;
}
/*
* Fan speed tolerance is a tricky beast, since the associated register is
* a tick counter, but the value is reported and configured as rpm.
* Compute resulting low and high rpm values and report the difference.
* A fan speed tolerance only makes sense if a fan target speed has been
* configured, so only display values other than 0 if that is the case.
*/
static ssize_t
show_speed_tolerance(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
int target, tolerance = 0;
if (IS_ERR(data))
return PTR_ERR(data);
target = data->target_speed[nr];
if (target) {
int low = target - data->target_speed_tolerance[nr];
int high = target + data->target_speed_tolerance[nr];
if (low <= 0)
low = 1;
if (high > 0xffff)
high = 0xffff;
if (high < low)
high = low;
tolerance = (fan_from_reg16(low, data->fan_div[nr])
- fan_from_reg16(high, data->fan_div[nr])) / 2;
}
return sprintf(buf, "%d\n", tolerance);
}
static ssize_t
store_speed_tolerance(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
int nr = sattr->index;
unsigned long val;
int err;
int low, high;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
high = fan_from_reg16(data->target_speed[nr], data->fan_div[nr]) + val;
low = fan_from_reg16(data->target_speed[nr], data->fan_div[nr]) - val;
if (low <= 0)
low = 1;
if (high < low)
high = low;
val = (fan_to_reg(low, data->fan_div[nr]) -
fan_to_reg(high, data->fan_div[nr])) / 2;
/* Limit tolerance as needed */
val = clamp_val(val, 0, data->speed_tolerance_limit);
mutex_lock(&data->update_lock);
data->target_speed_tolerance[nr] = val;
err = pwm_update_registers(data, nr);
mutex_unlock(&data->update_lock);
return err ? : count;
}
SENSOR_TEMPLATE_2(pwm, "pwm%d", 0644, show_pwm, store_pwm, 0, 0);
SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", 0644, show_pwm_mode, store_pwm_mode, 0);
SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", 0644, show_pwm_enable, store_pwm_enable, 0);
SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", 0644, show_pwm_temp_sel, store_pwm_temp_sel, 0);
SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", 0644, show_target_temp, store_target_temp, 0);
SENSOR_TEMPLATE(fan_target, "fan%d_target", 0644, show_target_speed, store_target_speed, 0);
SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", 0644, show_speed_tolerance,
store_speed_tolerance, 0);
/* Smart Fan registers */
static ssize_t
show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000);
}
static ssize_t
store_weight_temp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
mutex_lock(&data->update_lock);
data->weight_temp[index][nr] = val;
err = nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
mutex_unlock(&data->update_lock);
return err ? : count;
}
SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", 0644,
show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0);
SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step",
0644, show_weight_temp, store_weight_temp, 0, 0);
SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol",
0644, show_weight_temp, store_weight_temp, 0, 1);
SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base",
0644, show_weight_temp, store_weight_temp, 0, 2);
SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step", 0644, show_pwm, store_pwm, 0, 5);
SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base", 0644, show_pwm, store_pwm, 0, 6);
static ssize_t
show_fan_time(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n",
step_time_from_reg(data->fan_time[index][nr],
data->pwm_mode[nr]));
}
static ssize_t
store_fan_time(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int index = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
val = step_time_to_reg(val, data->pwm_mode[nr]);
mutex_lock(&data->update_lock);
data->fan_time[index][nr] = val;
err = nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]);
}
static ssize_t
store_auto_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int point = sattr->index;
unsigned long val;
int err;
u16 reg;
err = kstrtoul(buf, 10, &val);
if (err < 0)
return err;
if (val > 255)
return -EINVAL;
if (point == data->auto_pwm_num) {
if (data->kind != nct6775 && !val)
return -EINVAL;
if (data->kind != nct6779 && val)
val = 0xff;
}
mutex_lock(&data->update_lock);
data->auto_pwm[nr][point] = val;
if (point < data->auto_pwm_num) {
err = nct6775_write_value(data, NCT6775_AUTO_PWM(data, nr, point),
data->auto_pwm[nr][point]);
} else {
switch (data->kind) {
case nct6775:
/* disable if needed (pwm == 0) */
err = nct6775_read_value(data, NCT6775_REG_CRITICAL_ENAB[nr], &reg);
if (err)
break;
if (val)
reg |= 0x02;
else
reg &= ~0x02;
err = nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr], reg);
break;
case nct6776:
break; /* always enabled, nothing to do */
case nct6106:
case nct6116:
case nct6779:
case nct6791:
case nct6792:
case nct6793:
case nct6795:
case nct6796:
case nct6797:
case nct6798:
err = nct6775_write_value(data, data->REG_CRITICAL_PWM[nr], val);
if (err)
break;
err = nct6775_read_value(data, data->REG_CRITICAL_PWM_ENABLE[nr], &reg);
if (err)
break;
if (val == 255)
reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
else
reg |= data->CRITICAL_PWM_ENABLE_MASK;
err = nct6775_write_value(data, data->REG_CRITICAL_PWM_ENABLE[nr], reg);
break;
}
}
mutex_unlock(&data->update_lock);
return err ? : count;
}
static ssize_t
show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf)
{
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int point = sattr->index;
if (IS_ERR(data))
return PTR_ERR(data);
/*
* We don't know for sure if the temperature is signed or unsigned.
* Assume it is unsigned.
*/
return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000);
}
static ssize_t
store_auto_temp(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct nct6775_data *data = dev_get_drvdata(dev);
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
int nr = sattr->nr;
int point = sattr->index;
unsigned long val;
int err;
err = kstrtoul(buf, 10, &val);
if (err)
return err;
if (val > 255000)
return -EINVAL;
mutex_lock(&data->update_lock);
data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000);
if (point < data->auto_pwm_num) {
err = nct6775_write_value(data, NCT6775_AUTO_TEMP(data, nr, point),
data->auto_temp[nr][point]);
} else {
err = nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
data->auto_temp[nr][point]);
}
mutex_unlock(&data->update_lock);
return err ? : count;
}
static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = kobj_to_dev(kobj);
struct nct6775_data *data = dev_get_drvdata(dev);
int pwm = index / 36; /* pwm index */
int nr = index % 36; /* attribute index */
if (!(data->has_pwm & BIT(pwm)))
return 0;
if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */
if (!data->REG_WEIGHT_TEMP_SEL[pwm])
return 0;
if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
return 0;
if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
return 0;
if (nr == 21 && data->REG_PWM[6] == NULL) /* weight_duty_base */
return 0;
if (nr >= 22 && nr <= 35) { /* auto point */
int api = (nr - 22) / 2; /* auto point index */
if (api > data->auto_pwm_num)
return 0;
}
return nct6775_attr_mode(data, attr);
}
SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", 0644, show_fan_time, store_fan_time, 0, 0);
SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", 0644,
show_fan_time, store_fan_time, 0, 1);
SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", 0644,
show_fan_time, store_fan_time, 0, 2);
SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", 0644, show_pwm, store_pwm, 0, 1);
SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", 0644, show_pwm, store_pwm, 0, 2);
SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", 0644,
show_temp_tolerance, store_temp_tolerance, 0, 0);
SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance",
0644, show_temp_tolerance, store_temp_tolerance, 0, 1);
SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", 0644, show_pwm, store_pwm, 0, 3);
SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", 0644, show_pwm, store_pwm, 0, 4);
SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 0);
SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp",
0644, show_auto_temp, store_auto_temp, 0, 0);
SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 1);
SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp",
0644, show_auto_temp, store_auto_temp, 0, 1);
SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 2);
SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp",
0644, show_auto_temp, store_auto_temp, 0, 2);
SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 3);
SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp",
0644, show_auto_temp, store_auto_temp, 0, 3);
SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 4);
SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp",
0644, show_auto_temp, store_auto_temp, 0, 4);
SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 5);
SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp",
0644, show_auto_temp, store_auto_temp, 0, 5);
SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm",
0644, show_auto_pwm, store_auto_pwm, 0, 6);
SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp",
0644, show_auto_temp, store_auto_temp, 0, 6);
/*
* nct6775_pwm_is_visible uses the index into the following array
* to determine if attributes should be created or not.
* Any change in order or content must be matched.
*/
static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
&sensor_dev_template_pwm,
&sensor_dev_template_pwm_mode,
&sensor_dev_template_pwm_enable,
&sensor_dev_template_pwm_temp_sel,
&sensor_dev_template_pwm_temp_tolerance,
&sensor_dev_template_pwm_crit_temp_tolerance,
&sensor_dev_template_pwm_target_temp,
&sensor_dev_template_fan_target,
&sensor_dev_template_fan_tolerance,
&sensor_dev_template_pwm_stop_time,
&sensor_dev_template_pwm_step_up_time,
&sensor_dev_template_pwm_step_down_time,
&sensor_dev_template_pwm_start,
&sensor_dev_template_pwm_floor,
&sensor_dev_template_pwm_weight_temp_sel, /* 14 */
&sensor_dev_template_pwm_weight_temp_step,
&sensor_dev_template_pwm_weight_temp_step_tol,
&sensor_dev_template_pwm_weight_temp_step_base,
&sensor_dev_template_pwm_weight_duty_step, /* 18 */
&sensor_dev_template_pwm_max, /* 19 */
&sensor_dev_template_pwm_step, /* 20 */
&sensor_dev_template_pwm_weight_duty_base, /* 21 */
&sensor_dev_template_pwm_auto_point1_pwm, /* 22 */
&sensor_dev_template_pwm_auto_point1_temp,
&sensor_dev_template_pwm_auto_point2_pwm,
&sensor_dev_template_pwm_auto_point2_temp,
&sensor_dev_template_pwm_auto_point3_pwm,
&sensor_dev_template_pwm_auto_point3_temp,
&sensor_dev_template_pwm_auto_point4_pwm,
&sensor_dev_template_pwm_auto_point4_temp,
&sensor_dev_template_pwm_auto_point5_pwm,
&sensor_dev_template_pwm_auto_point5_temp,
&sensor_dev_template_pwm_auto_point6_pwm,
&sensor_dev_template_pwm_auto_point6_temp,
&sensor_dev_template_pwm_auto_point7_pwm,
&sensor_dev_template_pwm_auto_point7_temp, /* 35 */
NULL
};
static const struct sensor_template_group nct6775_pwm_template_group = {
.templates = nct6775_attributes_pwm_template,
.is_visible = nct6775_pwm_is_visible,
.base = 1,
};
static inline int nct6775_init_device(struct nct6775_data *data)
{
int i, err;
u16 tmp, diode;
/* Start monitoring if needed */
if (data->REG_CONFIG) {
err = nct6775_read_value(data, data->REG_CONFIG, &tmp);
if (err)
return err;
if (!(tmp & 0x01)) {
err = nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
if (err)
return err;
}
}
/* Enable temperature sensors if needed */
for (i = 0; i < NUM_TEMP; i++) {
if (!(data->have_temp & BIT(i)))
continue;
if (!data->reg_temp_config[i])
continue;
err = nct6775_read_value(data, data->reg_temp_config[i], &tmp);
if (err)
return err;
if (tmp & 0x01) {
err = nct6775_write_value(data, data->reg_temp_config[i], tmp & 0xfe);
if (err)
return err;
}
}
/* Enable VBAT monitoring if needed */
err = nct6775_read_value(data, data->REG_VBAT, &tmp);
if (err)
return err;
if (!(tmp & 0x01)) {
err = nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
if (err)
return err;
}
err = nct6775_read_value(data, data->REG_DIODE, &diode);
if (err)
return err;
for (i = 0; i < data->temp_fixed_num; i++) {
if (!(data->have_temp_fixed & BIT(i)))
continue;
if ((tmp & (data->DIODE_MASK << i))) /* diode */
data->temp_type[i]
= 3 - ((diode >> i) & data->DIODE_MASK);
else /* thermistor */
data->temp_type[i] = 4;
}
return 0;
}
static int add_temp_sensors(struct nct6775_data *data, const u16 *regp,
int *available, int *mask)
{
int i, err;
u16 src;
for (i = 0; i < data->pwm_num && *available; i++) {
int index;
if (!regp[i])
continue;
err = nct6775_read_value(data, regp[i], &src);
if (err)
return err;
src &= 0x1f;
if (!src || (*mask & BIT(src)))
continue;
if (!(data->temp_mask & BIT(src)))
continue;
index = __ffs(*available);
err = nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
if (err)
return err;
*available &= ~BIT(index);
*mask |= BIT(src);
}
return 0;
}
int nct6775_probe(struct device *dev, struct nct6775_data *data,
const struct regmap_config *regmapcfg)
{
int i, s, err = 0;
int mask, available;
u16 src;
const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
int num_reg_temp, num_reg_temp_mon, num_reg_tsi_temp;
struct device *hwmon_dev;
struct sensor_template_group tsi_temp_tg;
data->regmap = devm_regmap_init(dev, NULL, data, regmapcfg);
if (IS_ERR(data->regmap))
return PTR_ERR(data->regmap);
mutex_init(&data->update_lock);
data->name = nct6775_device_names[data->kind];
data->bank = 0xff; /* Force initial bank selection */
switch (data->kind) {
case nct6106:
data->in_num = 9;
data->pwm_num = 3;
data->auto_pwm_num = 4;
data->temp_fixed_num = 3;
data->num_temp_alarms = 6;
data->num_temp_beeps = 6;
data->fan_from_reg = fan_from_reg13;
data->fan_from_reg_min = fan_from_reg13;
data->temp_label = nct6776_temp_label;
data->temp_mask = NCT6776_TEMP_MASK;
data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
data->REG_VBAT = NCT6106_REG_VBAT;
data->REG_DIODE = NCT6106_REG_DIODE;
data->DIODE_MASK = NCT6106_DIODE_MASK;
data->REG_VIN = NCT6106_REG_IN;
data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
data->REG_TARGET = NCT6106_REG_TARGET;
data->REG_FAN = NCT6106_REG_FAN;
data->REG_FAN_MODE = NCT6106_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6106_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6106_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6106_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6106_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6116_REG_PWM;
data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT;
data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
data->REG_PWM_READ = NCT6106_REG_PWM_READ;
data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6106_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6106_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6106_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6106_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_CRITICAL_PWM_ENABLE = NCT6106_REG_CRITICAL_PWM_ENABLE;
data->CRITICAL_PWM_ENABLE_MASK
= NCT6106_CRITICAL_PWM_ENABLE_MASK;
data->REG_CRITICAL_PWM = NCT6106_REG_CRITICAL_PWM;
data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6106_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6116_REG_TEMP_SEL;
data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
data->REG_ALARM = NCT6106_REG_ALARM;
data->ALARM_BITS = NCT6106_ALARM_BITS;
data->REG_BEEP = NCT6106_REG_BEEP;
data->BEEP_BITS = NCT6106_BEEP_BITS;
data->REG_TSI_TEMP = NCT6106_REG_TSI_TEMP;
reg_temp = NCT6106_REG_TEMP;
reg_temp_mon = NCT6106_REG_TEMP_MON;
num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
num_reg_tsi_temp = ARRAY_SIZE(NCT6106_REG_TSI_TEMP);
reg_temp_over = NCT6106_REG_TEMP_OVER;
reg_temp_hyst = NCT6106_REG_TEMP_HYST;
reg_temp_config = NCT6106_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6106_REG_TEMP_CRIT;
reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
break;
case nct6116:
data->in_num = 9;
data->pwm_num = 3;
data->auto_pwm_num = 4;
data->temp_fixed_num = 3;
data->num_temp_alarms = 3;
data->num_temp_beeps = 3;
data->fan_from_reg = fan_from_reg13;
data->fan_from_reg_min = fan_from_reg13;
data->temp_label = nct6776_temp_label;
data->temp_mask = NCT6776_TEMP_MASK;
data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
data->REG_VBAT = NCT6106_REG_VBAT;
data->REG_DIODE = NCT6106_REG_DIODE;
data->DIODE_MASK = NCT6106_DIODE_MASK;
data->REG_VIN = NCT6106_REG_IN;
data->REG_IN_MINMAX[0] = NCT6106_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6106_REG_IN_MAX;
data->REG_TARGET = NCT6116_REG_TARGET;
data->REG_FAN = NCT6116_REG_FAN;
data->REG_FAN_MODE = NCT6116_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6116_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6116_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6116_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6116_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6116_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6116_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6116_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6116_REG_PWM;
data->REG_PWM[1] = NCT6116_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6116_REG_FAN_STOP_OUTPUT;
data->REG_PWM[5] = NCT6106_REG_WEIGHT_DUTY_STEP;
data->REG_PWM[6] = NCT6106_REG_WEIGHT_DUTY_BASE;
data->REG_PWM_READ = NCT6106_REG_PWM_READ;
data->REG_PWM_MODE = NCT6106_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6106_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6116_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6116_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6116_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6116_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_CRITICAL_PWM_ENABLE = NCT6116_REG_CRITICAL_PWM_ENABLE;
data->CRITICAL_PWM_ENABLE_MASK
= NCT6106_CRITICAL_PWM_ENABLE_MASK;
data->REG_CRITICAL_PWM = NCT6116_REG_CRITICAL_PWM;
data->REG_TEMP_OFFSET = NCT6106_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6116_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6116_REG_TEMP_SEL;
data->REG_WEIGHT_TEMP_SEL = NCT6106_REG_WEIGHT_TEMP_SEL;
data->REG_WEIGHT_TEMP[0] = NCT6106_REG_WEIGHT_TEMP_STEP;
data->REG_WEIGHT_TEMP[1] = NCT6106_REG_WEIGHT_TEMP_STEP_TOL;
data->REG_WEIGHT_TEMP[2] = NCT6106_REG_WEIGHT_TEMP_BASE;
data->REG_ALARM = NCT6106_REG_ALARM;
data->ALARM_BITS = NCT6116_ALARM_BITS;
data->REG_BEEP = NCT6106_REG_BEEP;
data->BEEP_BITS = NCT6116_BEEP_BITS;
data->REG_TSI_TEMP = NCT6116_REG_TSI_TEMP;
reg_temp = NCT6106_REG_TEMP;
reg_temp_mon = NCT6106_REG_TEMP_MON;
num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
num_reg_tsi_temp = ARRAY_SIZE(NCT6116_REG_TSI_TEMP);
reg_temp_over = NCT6106_REG_TEMP_OVER;
reg_temp_hyst = NCT6106_REG_TEMP_HYST;
reg_temp_config = NCT6106_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6106_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6106_REG_TEMP_CRIT;
reg_temp_crit_l = NCT6106_REG_TEMP_CRIT_L;
reg_temp_crit_h = NCT6106_REG_TEMP_CRIT_H;
break;
case nct6775:
data->in_num = 9;
data->pwm_num = 3;
data->auto_pwm_num = 6;
data->has_fan_div = true;
data->temp_fixed_num = 3;
data->num_temp_alarms = 3;
data->num_temp_beeps = 3;
data->ALARM_BITS = NCT6775_ALARM_BITS;
data->BEEP_BITS = NCT6775_BEEP_BITS;
data->fan_from_reg = fan_from_reg16;
data->fan_from_reg_min = fan_from_reg8;
data->target_temp_mask = 0x7f;
data->tolerance_mask = 0x0f;
data->speed_tolerance_limit = 15;
data->temp_label = nct6775_temp_label;
data->temp_mask = NCT6775_TEMP_MASK;
data->virt_temp_mask = NCT6775_VIRT_TEMP_MASK;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
data->REG_DIODE = NCT6775_REG_DIODE;
data->DIODE_MASK = NCT6775_DIODE_MASK;
data->REG_VIN = NCT6775_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6775_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6775_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT;
data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT;
data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6775_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
data->REG_ALARM = NCT6775_REG_ALARM;
data->REG_BEEP = NCT6775_REG_BEEP;
data->REG_TSI_TEMP = NCT6775_REG_TSI_TEMP;
reg_temp = NCT6775_REG_TEMP;
reg_temp_mon = NCT6775_REG_TEMP_MON;
num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
num_reg_tsi_temp = ARRAY_SIZE(NCT6775_REG_TSI_TEMP);
reg_temp_over = NCT6775_REG_TEMP_OVER;
reg_temp_hyst = NCT6775_REG_TEMP_HYST;
reg_temp_config = NCT6775_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6775_REG_TEMP_CRIT;
break;
case nct6776:
data->in_num = 9;
data->pwm_num = 3;
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 3;
data->num_temp_alarms = 3;
data->num_temp_beeps = 6;
data->ALARM_BITS = NCT6776_ALARM_BITS;
data->BEEP_BITS = NCT6776_BEEP_BITS;
data->fan_from_reg = fan_from_reg13;
data->fan_from_reg_min = fan_from_reg13;
data->target_temp_mask = 0xff;
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
data->temp_label = nct6776_temp_label;
data->temp_mask = NCT6776_TEMP_MASK;
data->virt_temp_mask = NCT6776_VIRT_TEMP_MASK;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
data->REG_DIODE = NCT6775_REG_DIODE;
data->DIODE_MASK = NCT6775_DIODE_MASK;
data->REG_VIN = NCT6775_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6775_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
data->REG_ALARM = NCT6775_REG_ALARM;
data->REG_BEEP = NCT6776_REG_BEEP;
data->REG_TSI_TEMP = NCT6776_REG_TSI_TEMP;
reg_temp = NCT6775_REG_TEMP;
reg_temp_mon = NCT6775_REG_TEMP_MON;
num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
num_reg_tsi_temp = ARRAY_SIZE(NCT6776_REG_TSI_TEMP);
reg_temp_over = NCT6775_REG_TEMP_OVER;
reg_temp_hyst = NCT6775_REG_TEMP_HYST;
reg_temp_config = NCT6776_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6776_REG_TEMP_CRIT;
break;
case nct6779:
data->in_num = 15;
data->pwm_num = 5;
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 6;
data->num_temp_alarms = 2;
data->num_temp_beeps = 2;
data->ALARM_BITS = NCT6779_ALARM_BITS;
data->BEEP_BITS = NCT6779_BEEP_BITS;
data->fan_from_reg = fan_from_reg_rpm;
data->fan_from_reg_min = fan_from_reg13;
data->target_temp_mask = 0xff;
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
data->temp_label = nct6779_temp_label;
data->temp_mask = NCT6779_TEMP_MASK;
data->virt_temp_mask = NCT6779_VIRT_TEMP_MASK;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
data->REG_DIODE = NCT6775_REG_DIODE;
data->DIODE_MASK = NCT6775_DIODE_MASK;
data->REG_VIN = NCT6779_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6779_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
data->CRITICAL_PWM_ENABLE_MASK
= NCT6779_CRITICAL_PWM_ENABLE_MASK;
data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
data->REG_ALARM = NCT6779_REG_ALARM;
data->REG_BEEP = NCT6776_REG_BEEP;
data->REG_TSI_TEMP = NCT6776_REG_TSI_TEMP;
reg_temp = NCT6779_REG_TEMP;
reg_temp_mon = NCT6779_REG_TEMP_MON;
num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
num_reg_tsi_temp = ARRAY_SIZE(NCT6776_REG_TSI_TEMP);
reg_temp_over = NCT6779_REG_TEMP_OVER;
reg_temp_hyst = NCT6779_REG_TEMP_HYST;
reg_temp_config = NCT6779_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6779_REG_TEMP_CRIT;
break;
case nct6791:
case nct6792:
case nct6793:
case nct6795:
case nct6796:
case nct6797:
case nct6798:
data->in_num = 15;
data->pwm_num = (data->kind == nct6796 ||
data->kind == nct6797 ||
data->kind == nct6798) ? 7 : 6;
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 6;
data->num_temp_alarms = 2;
data->num_temp_beeps = 2;
data->ALARM_BITS = NCT6791_ALARM_BITS;
data->BEEP_BITS = NCT6779_BEEP_BITS;
data->fan_from_reg = fan_from_reg_rpm;
data->fan_from_reg_min = fan_from_reg13;
data->target_temp_mask = 0xff;
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
switch (data->kind) {
default:
case nct6791:
data->temp_label = nct6779_temp_label;
data->temp_mask = NCT6791_TEMP_MASK;
data->virt_temp_mask = NCT6791_VIRT_TEMP_MASK;
break;
case nct6792:
data->temp_label = nct6792_temp_label;
data->temp_mask = NCT6792_TEMP_MASK;
data->virt_temp_mask = NCT6792_VIRT_TEMP_MASK;
break;
case nct6793:
data->temp_label = nct6793_temp_label;
data->temp_mask = NCT6793_TEMP_MASK;
data->virt_temp_mask = NCT6793_VIRT_TEMP_MASK;
break;
case nct6795:
case nct6797:
data->temp_label = nct6795_temp_label;
data->temp_mask = NCT6795_TEMP_MASK;
data->virt_temp_mask = NCT6795_VIRT_TEMP_MASK;
break;
case nct6796:
data->temp_label = nct6796_temp_label;
data->temp_mask = NCT6796_TEMP_MASK;
data->virt_temp_mask = NCT6796_VIRT_TEMP_MASK;
break;
case nct6798:
data->temp_label = nct6798_temp_label;
data->temp_mask = NCT6798_TEMP_MASK;
data->virt_temp_mask = NCT6798_VIRT_TEMP_MASK;
break;
}
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
data->REG_DIODE = NCT6775_REG_DIODE;
data->DIODE_MASK = NCT6775_DIODE_MASK;
data->REG_VIN = NCT6779_REG_IN;
data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN;
data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX;
data->REG_TARGET = NCT6775_REG_TARGET;
data->REG_FAN = NCT6779_REG_FAN;
data->REG_FAN_MODE = NCT6775_REG_FAN_MODE;
data->REG_FAN_MIN = NCT6776_REG_FAN_MIN;
data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES;
data->FAN_PULSE_SHIFT = NCT6775_FAN_PULSE_SHIFT;
data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME;
data->REG_FAN_TIME[1] = NCT6776_REG_FAN_STEP_UP_TIME;
data->REG_FAN_TIME[2] = NCT6776_REG_FAN_STEP_DOWN_TIME;
data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H;
data->REG_PWM[0] = NCT6775_REG_PWM;
data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP;
data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE;
data->REG_PWM_READ = NCT6775_REG_PWM_READ;
data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP;
data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM;
data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP;
data->REG_CRITICAL_TEMP_TOLERANCE
= NCT6775_REG_CRITICAL_TEMP_TOLERANCE;
data->REG_CRITICAL_PWM_ENABLE = NCT6779_REG_CRITICAL_PWM_ENABLE;
data->CRITICAL_PWM_ENABLE_MASK
= NCT6779_CRITICAL_PWM_ENABLE_MASK;
data->REG_CRITICAL_PWM = NCT6779_REG_CRITICAL_PWM;
data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL;
data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP;
data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL;
data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE;
data->REG_ALARM = NCT6791_REG_ALARM;
if (data->kind == nct6791)
data->REG_BEEP = NCT6776_REG_BEEP;
else
data->REG_BEEP = NCT6792_REG_BEEP;
switch (data->kind) {
case nct6791:
case nct6792:
case nct6793:
data->REG_TSI_TEMP = NCT6776_REG_TSI_TEMP;
num_reg_tsi_temp = ARRAY_SIZE(NCT6776_REG_TSI_TEMP);
break;
case nct6795:
case nct6796:
case nct6797:
case nct6798:
data->REG_TSI_TEMP = NCT6796_REG_TSI_TEMP;
num_reg_tsi_temp = ARRAY_SIZE(NCT6796_REG_TSI_TEMP);
break;
default:
num_reg_tsi_temp = 0;
break;
}
reg_temp = NCT6779_REG_TEMP;
num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
if (data->kind == nct6791) {
reg_temp_mon = NCT6779_REG_TEMP_MON;
num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
} else {
reg_temp_mon = NCT6792_REG_TEMP_MON;
num_reg_temp_mon = ARRAY_SIZE(NCT6792_REG_TEMP_MON);
}
reg_temp_over = NCT6779_REG_TEMP_OVER;
reg_temp_hyst = NCT6779_REG_TEMP_HYST;
reg_temp_config = NCT6779_REG_TEMP_CONFIG;
reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE;
reg_temp_crit = NCT6779_REG_TEMP_CRIT;
break;
default:
return -ENODEV;
}
data->have_in = BIT(data->in_num) - 1;
data->have_temp = 0;
/*
* On some boards, not all available temperature sources are monitored,
* even though some of the monitoring registers are unused.
* Get list of unused monitoring registers, then detect if any fan
* controls are configured to use unmonitored temperature sources.
* If so, assign the unmonitored temperature sources to available
* monitoring registers.
*/
mask = 0;
available = 0;
for (i = 0; i < num_reg_temp; i++) {
if (reg_temp[i] == 0)
continue;
err = nct6775_read_value(data, data->REG_TEMP_SOURCE[i], &src);
if (err)
return err;
src &= 0x1f;
if (!src || (mask & BIT(src)))
available |= BIT(i);
mask |= BIT(src);
}
/*
* Now find unmonitored temperature registers and enable monitoring
* if additional monitoring registers are available.
*/
err = add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask);
if (err)
return err;
err = add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask);
if (err)
return err;
mask = 0;
s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
for (i = 0; i < num_reg_temp; i++) {
if (reg_temp[i] == 0)
continue;
err = nct6775_read_value(data, data->REG_TEMP_SOURCE[i], &src);
if (err)
return err;
src &= 0x1f;
if (!src || (mask & BIT(src)))
continue;
if (!(data->temp_mask & BIT(src))) {
dev_info(dev,
"Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]);
continue;
}
mask |= BIT(src);
/* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
if (src <= data->temp_fixed_num) {
data->have_temp |= BIT(src - 1);
data->have_temp_fixed |= BIT(src - 1);
data->reg_temp[0][src - 1] = reg_temp[i];
data->reg_temp[1][src - 1] = reg_temp_over[i];
data->reg_temp[2][src - 1] = reg_temp_hyst[i];
if (reg_temp_crit_h && reg_temp_crit_h[i])
data->reg_temp[3][src - 1] = reg_temp_crit_h[i];
else if (reg_temp_crit[src - 1])
data->reg_temp[3][src - 1]
= reg_temp_crit[src - 1];
if (reg_temp_crit_l && reg_temp_crit_l[i])
data->reg_temp[4][src - 1] = reg_temp_crit_l[i];
data->reg_temp_config[src - 1] = reg_temp_config[i];
data->temp_src[src - 1] = src;
continue;
}
if (s >= NUM_TEMP)
continue;
/* Use dynamic index for other sources */
data->have_temp |= BIT(s);
data->reg_temp[0][s] = reg_temp[i];
data->reg_temp[1][s] = reg_temp_over[i];
data->reg_temp[2][s] = reg_temp_hyst[i];
data->reg_temp_config[s] = reg_temp_config[i];
if (reg_temp_crit_h && reg_temp_crit_h[i])
data->reg_temp[3][s] = reg_temp_crit_h[i];
else if (reg_temp_crit[src - 1])
data->reg_temp[3][s] = reg_temp_crit[src - 1];
if (reg_temp_crit_l && reg_temp_crit_l[i])
data->reg_temp[4][s] = reg_temp_crit_l[i];
data->temp_src[s] = src;
s++;
}
/*
* Repeat with temperatures used for fan control.
* This set of registers does not support limits.
*/
for (i = 0; i < num_reg_temp_mon; i++) {
if (reg_temp_mon[i] == 0)
continue;
err = nct6775_read_value(data, data->REG_TEMP_SEL[i], &src);
if (err)
return err;
src &= 0x1f;
if (!src)
continue;
if (!(data->temp_mask & BIT(src))) {
dev_info(dev,
"Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
src, i, data->REG_TEMP_SEL[i],
reg_temp_mon[i]);
continue;
}
/*
* For virtual temperature sources, the 'virtual' temperature
* for each fan reflects a different temperature, and there
* are no duplicates.
*/
if (!(data->virt_temp_mask & BIT(src))) {
if (mask & BIT(src))
continue;
mask |= BIT(src);
}
/* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
if (src <= data->temp_fixed_num) {
if (data->have_temp & BIT(src - 1))
continue;
data->have_temp |= BIT(src - 1);
data->have_temp_fixed |= BIT(src - 1);
data->reg_temp[0][src - 1] = reg_temp_mon[i];
data->temp_src[src - 1] = src;
continue;
}
if (s >= NUM_TEMP)
continue;
/* Use dynamic index for other sources */
data->have_temp |= BIT(s);
data->reg_temp[0][s] = reg_temp_mon[i];
data->temp_src[s] = src;
s++;
}
#ifdef USE_ALTERNATE
/*
* Go through the list of alternate temp registers and enable
* if possible.
* The temperature is already monitored if the respective bit in <mask>
* is set.
*/
for (i = 0; i < 31; i++) {
if (!(data->temp_mask & BIT(i + 1)))
continue;
if (!reg_temp_alternate[i])
continue;
if (mask & BIT(i + 1))
continue;
if (i < data->temp_fixed_num) {
if (data->have_temp & BIT(i))
continue;
data->have_temp |= BIT(i);
data->have_temp_fixed |= BIT(i);
data->reg_temp[0][i] = reg_temp_alternate[i];
if (i < num_reg_temp) {
data->reg_temp[1][i] = reg_temp_over[i];
data->reg_temp[2][i] = reg_temp_hyst[i];
}
data->temp_src[i] = i + 1;
continue;
}
if (s >= NUM_TEMP) /* Abort if no more space */
break;
data->have_temp |= BIT(s);
data->reg_temp[0][s] = reg_temp_alternate[i];
data->temp_src[s] = i + 1;
s++;
}
#endif /* USE_ALTERNATE */
/* Check which TSIx_TEMP registers are active */
for (i = 0; i < num_reg_tsi_temp; i++) {
u16 tmp;
err = nct6775_read_value(data, data->REG_TSI_TEMP[i], &tmp);
if (err)
return err;
if (tmp)
data->have_tsi_temp |= BIT(i);
}
/* Initialize the chip */
err = nct6775_init_device(data);
if (err)
return err;
if (data->driver_init) {
err = data->driver_init(data);
if (err)
return err;
}
/* Read fan clock dividers immediately */
err = nct6775_init_fan_common(dev, data);
if (err)
return err;
/* Register sysfs hooks */
err = nct6775_add_template_attr_group(dev, data, &nct6775_pwm_template_group,
data->pwm_num);
if (err)
return err;
err = nct6775_add_template_attr_group(dev, data, &nct6775_in_template_group,
fls(data->have_in));
if (err)
return err;
err = nct6775_add_template_attr_group(dev, data, &nct6775_fan_template_group,
fls(data->has_fan));
if (err)
return err;
err = nct6775_add_template_attr_group(dev, data, &nct6775_temp_template_group,
fls(data->have_temp));
if (err)
return err;
if (data->have_tsi_temp) {
tsi_temp_tg.templates = nct6775_tsi_temp_template;
tsi_temp_tg.is_visible = nct6775_tsi_temp_is_visible;
tsi_temp_tg.base = fls(data->have_temp) + 1;
err = nct6775_add_template_attr_group(dev, data, &tsi_temp_tg,
fls(data->have_tsi_temp));
if (err)
return err;
}
hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
data, data->groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
EXPORT_SYMBOL_GPL(nct6775_probe);
MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
MODULE_DESCRIPTION("Core driver for NCT6775F and compatible chips");
MODULE_LICENSE("GPL");
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