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Diffstat (limited to '')
| -rw-r--r-- | drivers/hwmon/nct6775-core.c | 4210 |
1 files changed, 4210 insertions, 0 deletions
diff --git a/drivers/hwmon/nct6775-core.c b/drivers/hwmon/nct6775-core.c new file mode 100644 index 000000000..80310845f --- /dev/null +++ b/drivers/hwmon/nct6775-core.c @@ -0,0 +1,4210 @@ +// 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, ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + if (err) + return err; + data->temp_tolerance[1][i] = reg; + + err = nct6775_read_value(data, data->REG_TEMP_SEL[i], ®); + 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], ®); + 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], ®); + 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], ®); + if (err) + return err; + data->fan_time[j][i] = reg; + } + + err = nct6775_read_value(data, data->REG_TARGET[i], ®_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], ®); + 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), ®); + if (err) + return err; + data->auto_pwm[i][j] = reg; + + err = nct6775_read_value(data, NCT6775_AUTO_TEMP(data, i, j), ®); + 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], ®); + 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], ®); + 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], ®); + if (err) + return err; + if (reg & data->CRITICAL_PWM_ENABLE_MASK) { + err = nct6775_read_value(data, data->REG_CRITICAL_PWM[i], ®); + 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], ®); + if (err) + goto out; + data->in[i][0] = reg; + + err = nct6775_read_value(data, data->REG_IN_MINMAX[0][i], ®); + if (err) + goto out; + data->in[i][1] = reg; + + err = nct6775_read_value(data, data->REG_IN_MINMAX[1][i], ®); + 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], ®); + if (err) + goto out; + data->rpm[i] = data->fan_from_reg(reg, + data->fan_div[i]); + + if (data->has_fan_min & BIT(i)) { + u16 tmp; + + err = nct6775_read_value(data, data->REG_FAN_MIN[i], &tmp); + if (err) + goto out; + data->fan_min[i] = tmp; + } + + if (data->REG_FAN_PULSES[i]) { + u16 tmp; + + err = nct6775_read_value(data, data->REG_FAN_PULSES[i], &tmp); + if (err) + goto out; + data->fan_pulses[i] = (tmp >> 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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], ®); + 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"); |