--- /dev/null
+/*
+ * 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
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Supports the following chips:
+ *
+ * Chip #vin #fan #pwm #temp chip IDs man ID
+ * nct6106d 9 3 3 6+3 0xc450 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
+ *
+ * #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/platform_device.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/io.h>
+#include "lm75.h"
+
+#define USE_ALTERNATE
+
+enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792 };
+
+/* used to set data->name = nct6775_device_names[data->sio_kind] */
+static const char * const nct6775_device_names[] = {
+ "nct6106",
+ "nct6775",
+ "nct6776",
+ "nct6779",
+ "nct6791",
+ "nct6792",
+};
+
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
+static unsigned short fan_debounce;
+module_param(fan_debounce, ushort, 0);
+MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
+
+#define DRVNAME "nct6775"
+
+/*
+ * Super-I/O constants and functions
+ */
+
+#define NCT6775_LD_ACPI 0x0a
+#define NCT6775_LD_HWM 0x0b
+#define NCT6775_LD_VID 0x0d
+
+#define SIO_REG_LDSEL 0x07 /* Logical device select */
+#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
+#define SIO_REG_ENABLE 0x30 /* Logical device enable */
+#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
+
+#define SIO_NCT6106_ID 0xc450
+#define SIO_NCT6775_ID 0xb470
+#define SIO_NCT6776_ID 0xc330
+#define SIO_NCT6779_ID 0xc560
+#define SIO_NCT6791_ID 0xc800
+#define SIO_NCT6792_ID 0xc910
+#define SIO_ID_MASK 0xFFF0
+
+enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
+
+static inline void
+superio_outb(int ioreg, int reg, int val)
+{
+ outb(reg, ioreg);
+ outb(val, ioreg + 1);
+}
+
+static inline int
+superio_inb(int ioreg, int reg)
+{
+ outb(reg, ioreg);
+ return inb(ioreg + 1);
+}
+
+static inline void
+superio_select(int ioreg, int ld)
+{
+ outb(SIO_REG_LDSEL, ioreg);
+ outb(ld, ioreg + 1);
+}
+
+static inline int
+superio_enter(int ioreg)
+{
+ /*
+ * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
+ */
+ if (!request_muxed_region(ioreg, 2, DRVNAME))
+ return -EBUSY;
+
+ outb(0x87, ioreg);
+ outb(0x87, ioreg);
+
+ return 0;
+}
+
+static inline void
+superio_exit(int ioreg)
+{
+ outb(0xaa, ioreg);
+ outb(0x02, ioreg);
+ outb(0x02, ioreg + 1);
+ release_region(ioreg, 2);
+}
+
+/*
+ * ISA constants
+ */
+
+#define IOREGION_ALIGNMENT (~7)
+#define IOREGION_OFFSET 5
+#define IOREGION_LENGTH 2
+#define ADDR_REG_OFFSET 0
+#define DATA_REG_OFFSET 1
+
+#define NCT6775_REG_BANK 0x4E
+#define NCT6775_REG_CONFIG 0x40
+
+/*
+ * Not currently used:
+ * REG_MAN_ID has the value 0x5ca3 for all supported chips.
+ * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
+ * REG_MAN_ID is at port 0x4f
+ * REG_CHIP_ID is at port 0x58
+ */
+
+#define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
+#define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
+
+#define NUM_REG_ALARM 7 /* Max number of alarm registers */
+#define NUM_REG_BEEP 5 /* Max number of beep registers */
+
+#define NUM_FAN 6
+
+/* 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
+
+#define NCT6775_REG_FANDIV1 0x506
+#define NCT6775_REG_FANDIV2 0x507
+
+#define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
+
+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 */
+
+#define FAN_ALARM_BASE 16
+#define TEMP_ALARM_BASE 24
+#define INTRUSION_ALARM_BASE 30
+
+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 */
+
+#define BEEP_ENABLE_BASE 15
+
+static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
+static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
+
+/* 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 };
+static const u16 NCT6775_REG_FAN_MODE[] = {
+ 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02 };
+static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
+ 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03 };
+static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
+ 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04 };
+static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
+ 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05 };
+static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
+ 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06 };
+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 };
+static const u16 NCT6775_REG_PWM[] = {
+ 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09 };
+static const u16 NCT6775_REG_PWM_READ[] = {
+ 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09 };
+
+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[] = { 0x641, 0x642, 0x643, 0x644, 0 };
+static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 };
+
+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 };
+
+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 };
+static const u16 NCT6775_REG_AUTO_PWM[] = {
+ 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27 };
+
+#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 };
+static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
+ 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38 };
+
+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"
+};
+
+static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1]
+ = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 };
+
+static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1]
+ = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06,
+ 0xa07 };
+
+/* NCT6776 specific data */
+
+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 };
+
+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 };
+static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
+
+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"
+};
+
+static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1]
+ = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 };
+
+static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
+ = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
+
+/* 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[] = {
+ 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba };
+static const u16 NCT6779_REG_FAN_PULSES[] = {
+ 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
+
+static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
+ 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36 };
+#define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
+static const u16 NCT6779_REG_CRITICAL_PWM[] = {
+ 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
+
+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"
+};
+
+static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
+ = { 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[ARRAY_SIZE(nct6779_temp_label) - 1]
+ = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
+
+/* NCT6791 specific data */
+
+#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
+
+static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 };
+static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a };
+static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b };
+static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c };
+static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d };
+static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 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 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 };
+
+/* 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, 0, 0 };
+static const u16 NCT6106_FAN_PULSE_SHIFT[] = { 0, 2, 4, 0, 0 };
+
+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[] = { 0x119, 0x129, 0x139 };
+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_SEL[] = { 0x110, 0x120, 0x130 };
+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, 0x17c };
+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[ARRAY_SIZE(nct6776_temp_label) - 1]
+ = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x51, 0x52, 0x54 };
+
+static const u16 NCT6106_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1]
+ = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x204, 0x205 };
+
+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 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 1 << 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);
+}
+
+/*
+ * Data structures and manipulation thereof
+ */
+
+struct nct6775_data {
+ int addr; /* IO base of hw monitor block */
+ int sioreg; /* SIO register address */
+ enum kinds kind;
+ const char *name;
+
+ const struct attribute_group *groups[6];
+
+ u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
+ * 3=temp_crit, 4=temp_lcrit
+ */
+ u8 temp_src[NUM_TEMP];
+ u16 reg_temp_config[NUM_TEMP];
+ const char * const *temp_label;
+ int temp_label_num;
+
+ u16 REG_CONFIG;
+ u16 REG_VBAT;
+ u16 REG_DIODE;
+ u8 DIODE_MASK;
+
+ const s8 *ALARM_BITS;
+ const s8 *BEEP_BITS;
+
+ const u16 *REG_VIN;
+ const u16 *REG_IN_MINMAX[2];
+
+ const u16 *REG_TARGET;
+ const u16 *REG_FAN;
+ const u16 *REG_FAN_MODE;
+ const u16 *REG_FAN_MIN;
+ const u16 *REG_FAN_PULSES;
+ const u16 *FAN_PULSE_SHIFT;
+ const u16 *REG_FAN_TIME[3];
+
+ const u16 *REG_TOLERANCE_H;
+
+ const u8 *REG_PWM_MODE;
+ const u8 *PWM_MODE_MASK;
+
+ const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
+ * [3]=pwm_max, [4]=pwm_step,
+ * [5]=weight_duty_step, [6]=weight_duty_base
+ */
+ const u16 *REG_PWM_READ;
+
+ const u16 *REG_CRITICAL_PWM_ENABLE;
+ u8 CRITICAL_PWM_ENABLE_MASK;
+ const u16 *REG_CRITICAL_PWM;
+
+ const u16 *REG_AUTO_TEMP;
+ const u16 *REG_AUTO_PWM;
+
+ const u16 *REG_CRITICAL_TEMP;
+ const u16 *REG_CRITICAL_TEMP_TOLERANCE;
+
+ const u16 *REG_TEMP_SOURCE; /* temp register sources */
+ const u16 *REG_TEMP_SEL;
+ const u16 *REG_WEIGHT_TEMP_SEL;
+ const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
+
+ const u16 *REG_TEMP_OFFSET;
+
+ const u16 *REG_ALARM;
+ const u16 *REG_BEEP;
+
+ unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
+ unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
+
+ struct mutex update_lock;
+ bool valid; /* true if following fields are valid */
+ unsigned long last_updated; /* In jiffies */
+
+ /* Register values */
+ u8 bank; /* current register bank */
+ u8 in_num; /* number of in inputs we have */
+ u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
+ unsigned int rpm[NUM_FAN];
+ u16 fan_min[NUM_FAN];
+ u8 fan_pulses[NUM_FAN];
+ u8 fan_div[NUM_FAN];
+ u8 has_pwm;
+ u8 has_fan; /* some fan inputs can be disabled */
+ u8 has_fan_min; /* some fans don't have min register */
+ bool has_fan_div;
+
+ u8 num_temp_alarms; /* 2, 3, or 6 */
+ u8 num_temp_beeps; /* 2, 3, or 6 */
+ u8 temp_fixed_num; /* 3 or 6 */
+ u8 temp_type[NUM_TEMP_FIXED];
+ s8 temp_offset[NUM_TEMP_FIXED];
+ s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
+ * 3=temp_crit, 4=temp_lcrit */
+ u64 alarms;
+ u64 beeps;
+
+ u8 pwm_num; /* number of pwm */
+ u8 pwm_mode[NUM_FAN]; /* 1->DC variable voltage,
+ * 0->PWM variable duty cycle
+ */
+ enum pwm_enable pwm_enable[NUM_FAN];
+ /* 0->off
+ * 1->manual
+ * 2->thermal cruise mode (also called SmartFan I)
+ * 3->fan speed cruise mode
+ * 4->SmartFan III
+ * 5->enhanced variable thermal cruise (SmartFan IV)
+ */
+ u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
+ * [3]=pwm_max, [4]=pwm_step,
+ * [5]=weight_duty_step, [6]=weight_duty_base
+ */
+
+ u8 target_temp[NUM_FAN];
+ u8 target_temp_mask;
+ u32 target_speed[NUM_FAN];
+ u32 target_speed_tolerance[NUM_FAN];
+ u8 speed_tolerance_limit;
+
+ u8 temp_tolerance[2][NUM_FAN];
+ u8 tolerance_mask;
+
+ u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
+
+ /* Automatic fan speed control registers */
+ int auto_pwm_num;
+ u8 auto_pwm[NUM_FAN][7];
+ u8 auto_temp[NUM_FAN][7];
+ u8 pwm_temp_sel[NUM_FAN];
+ u8 pwm_weight_temp_sel[NUM_FAN];
+ u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
+ * 2->temp_base
+ */
+
+ u8 vid;
+ u8 vrm;
+
+ bool have_vid;
+
+ u16 have_temp;
+ u16 have_temp_fixed;
+ u16 have_in;
+
+ /* Remember extra register values over suspend/resume */
+ u8 vbat;
+ u8 fandiv1;
+ u8 fandiv2;
+ u8 sio_reg_enable;
+};
+
+struct nct6775_sio_data {
+ int sioreg;
+ enum kinds kind;
+};
+
+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 struct attribute_group *
+nct6775_create_attr_group(struct device *dev, 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 ERR_PTR(-EINVAL);
+
+ t = tg->templates;
+ for (count = 0; *t; t++, count++)
+ ;
+
+ if (count == 0)
+ return ERR_PTR(-EINVAL);
+
+ group = devm_kzalloc(dev, sizeof(*group), GFP_KERNEL);
+ if (group == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ attrs = devm_kzalloc(dev, sizeof(*attrs) * (repeat * count + 1),
+ GFP_KERNEL);
+ if (attrs == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ su = devm_kzalloc(dev, sizeof(*su) * repeat * count,
+ GFP_KERNEL);
+ if (su == NULL)
+ return ERR_PTR(-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 group;
+}
+
+static bool is_word_sized(struct nct6775_data *data, u16 reg)
+{
+ switch (data->kind) {
+ case nct6106:
+ return reg == 0x20 || reg == 0x22 || reg == 0x24 ||
+ reg == 0xe0 || reg == 0xe2 || reg == 0xe4 ||
+ reg == 0x111 || reg == 0x121 || reg == 0x131;
+ 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 & 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 == 0x640 || reg == 0x642 ||
+ ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) ||
+ reg == 0x73 || reg == 0x75 || reg == 0x77;
+ case nct6779:
+ case nct6791:
+ case nct6792:
+ return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
+ ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
+ reg == 0x402 ||
+ reg == 0x63a || reg == 0x63c || reg == 0x63e ||
+ reg == 0x640 || reg == 0x642 ||
+ reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
+ reg == 0x7b || reg == 0x7d;
+ }
+ return false;
+}
+
+/*
+ * On older chips, only registers 0x50-0x5f are banked.
+ * On more recent chips, all registers are banked.
+ * Assume that is the case and set the bank number for each access.
+ * Cache the bank number so it only needs to be set if it changes.
+ */
+static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
+{
+ u8 bank = reg >> 8;
+
+ if (data->bank != bank) {
+ outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
+ outb_p(bank, data->addr + DATA_REG_OFFSET);
+ data->bank = bank;
+ }
+}
+
+static u16 nct6775_read_value(struct nct6775_data *data, u16 reg)
+{
+ int res, word_sized = is_word_sized(data, reg);
+
+ nct6775_set_bank(data, reg);
+ outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
+ res = inb_p(data->addr + DATA_REG_OFFSET);
+ if (word_sized) {
+ outb_p((reg & 0xff) + 1,
+ data->addr + ADDR_REG_OFFSET);
+ res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
+ }
+ return res;
+}
+
+static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
+{
+ int word_sized = is_word_sized(data, reg);
+
+ nct6775_set_bank(data, reg);
+ outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
+ if (word_sized) {
+ outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
+ outb_p((reg & 0xff) + 1,
+ data->addr + ADDR_REG_OFFSET);
+ }
+ outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
+ return 0;
+}
+
+/* We left-align 8-bit temperature values to make the code simpler */
+static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg)
+{
+ u16 res;
+
+ res = nct6775_read_value(data, reg);
+ if (!is_word_sized(data, reg))
+ res <<= 8;
+
+ return res;
+}
+
+static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
+{
+ if (!is_word_sized(data, reg))
+ value >>= 8;
+ return nct6775_write_value(data, reg, value);
+}
+
+/* This function assumes that the caller holds data->update_lock */
+static void nct6775_write_fan_div(struct nct6775_data *data, int nr)
+{
+ u8 reg;
+
+ switch (nr) {
+ case 0:
+ reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70)
+ | (data->fan_div[0] & 0x7);
+ nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
+ break;
+ case 1:
+ reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7)
+ | ((data->fan_div[1] << 4) & 0x70);
+ nct6775_write_value(data, NCT6775_REG_FANDIV1, reg);
+ break;
+ case 2:
+ reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70)
+ | (data->fan_div[2] & 0x7);
+ nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
+ break;
+ case 3:
+ reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7)
+ | ((data->fan_div[3] << 4) & 0x70);
+ nct6775_write_value(data, NCT6775_REG_FANDIV2, reg);
+ break;
+ }
+}
+
+static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr)
+{
+ if (data->kind == nct6775)
+ nct6775_write_fan_div(data, nr);
+}
+
+static void nct6775_update_fan_div(struct nct6775_data *data)
+{
+ u8 i;
+
+ i = nct6775_read_value(data, NCT6775_REG_FANDIV1);
+ data->fan_div[0] = i & 0x7;
+ data->fan_div[1] = (i & 0x70) >> 4;
+ i = nct6775_read_value(data, NCT6775_REG_FANDIV2);
+ data->fan_div[2] = i & 0x7;
+ if (data->has_fan & (1 << 3))
+ data->fan_div[3] = (i & 0x70) >> 4;
+}
+
+static void nct6775_update_fan_div_common(struct nct6775_data *data)
+{
+ if (data->kind == nct6775)
+ nct6775_update_fan_div(data);
+}
+
+static void nct6775_init_fan_div(struct nct6775_data *data)
+{
+ int i;
+
+ nct6775_update_fan_div_common(data);
+ /*
+ * 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 & (1 << i)))
+ continue;
+ if (data->fan_div[i] == 0) {
+ data->fan_div[i] = 7;
+ nct6775_write_fan_div_common(data, i);
+ }
+ }
+}
+
+static void nct6775_init_fan_common(struct device *dev,
+ struct nct6775_data *data)
+{
+ int i;
+ u8 reg;
+
+ if (data->has_fan_div)
+ nct6775_init_fan_div(data);
+
+ /*
+ * 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 & (1 << i)) {
+ reg = nct6775_read_value(data, data->REG_FAN_MIN[i]);
+ if (!reg)
+ nct6775_write_value(data, data->REG_FAN_MIN[i],
+ data->has_fan_div ? 0xff
+ : 0xff1f);
+ }
+ }
+}
+
+static void nct6775_select_fan_div(struct device *dev,
+ struct nct6775_data *data, int nr, u16 reg)
+{
+ u8 fan_div = data->fan_div[nr];
+ u16 fan_min;
+
+ if (!data->has_fan_div)
+ return;
+
+ /*
+ * 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 & (1 << 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;
+ nct6775_write_value(data, data->REG_FAN_MIN[nr],
+ fan_min);
+ }
+ }
+ data->fan_div[nr] = fan_div;
+ nct6775_write_fan_div_common(data, nr);
+ }
+}
+
+static void nct6775_update_pwm(struct device *dev)
+{
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int i, j;
+ int fanmodecfg, reg;
+ bool duty_is_dc;
+
+ for (i = 0; i < data->pwm_num; i++) {
+ if (!(data->has_pwm & (1 << i)))
+ continue;
+
+ duty_is_dc = data->REG_PWM_MODE[i] &&
+ (nct6775_read_value(data, data->REG_PWM_MODE[i])
+ & data->PWM_MODE_MASK[i]);
+ data->pwm_mode[i] = duty_is_dc;
+
+ fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
+ for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
+ if (data->REG_PWM[j] && data->REG_PWM[j][i]) {
+ data->pwm[j][i]
+ = nct6775_read_value(data,
+ data->REG_PWM[j][i]);
+ }
+ }
+
+ 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) {
+ t |= (nct6775_read_value(data,
+ data->REG_TOLERANCE_H[i]) & 0x70) >> 1;
+ }
+ data->target_speed_tolerance[i] = t;
+ }
+
+ data->temp_tolerance[1][i] =
+ nct6775_read_value(data,
+ data->REG_CRITICAL_TEMP_TOLERANCE[i]);
+
+ reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]);
+ 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;
+
+ reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
+ data->pwm_weight_temp_sel[i] = reg & 0x1f;
+ /* If weight is disabled, report weight source as 0 */
+ if (j == 1 && !(reg & 0x80))
+ data->pwm_weight_temp_sel[i] = 0;
+
+ /* Weight temp data */
+ for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) {
+ data->weight_temp[j][i]
+ = nct6775_read_value(data,
+ data->REG_WEIGHT_TEMP[j][i]);
+ }
+ }
+}
+
+static void nct6775_update_pwm_limits(struct device *dev)
+{
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int i, j;
+ u8 reg;
+ u16 reg_t;
+
+ for (i = 0; i < data->pwm_num; i++) {
+ if (!(data->has_pwm & (1 << i)))
+ continue;
+
+ for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) {
+ data->fan_time[j][i] =
+ nct6775_read_value(data, data->REG_FAN_TIME[j][i]);
+ }
+
+ reg_t = nct6775_read_value(data, data->REG_TARGET[i]);
+ /* 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) {
+ reg_t |= (nct6775_read_value(data,
+ data->REG_TOLERANCE_H[i]) & 0x0f) << 8;
+ }
+ data->target_speed[i] = reg_t;
+ }
+
+ for (j = 0; j < data->auto_pwm_num; j++) {
+ data->auto_pwm[i][j] =
+ nct6775_read_value(data,
+ NCT6775_AUTO_PWM(data, i, j));
+ data->auto_temp[i][j] =
+ nct6775_read_value(data,
+ NCT6775_AUTO_TEMP(data, i, j));
+ }
+
+ /* critical auto_pwm temperature data */
+ data->auto_temp[i][data->auto_pwm_num] =
+ nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]);
+
+ switch (data->kind) {
+ case nct6775:
+ reg = nct6775_read_value(data,
+ NCT6775_REG_CRITICAL_ENAB[i]);
+ 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 nct6779:
+ case nct6791:
+ case nct6792:
+ reg = nct6775_read_value(data,
+ data->REG_CRITICAL_PWM_ENABLE[i]);
+ if (reg & data->CRITICAL_PWM_ENABLE_MASK)
+ reg = nct6775_read_value(data,
+ data->REG_CRITICAL_PWM[i]);
+ else
+ reg = 0xff;
+ data->auto_pwm[i][data->auto_pwm_num] = reg;
+ break;
+ }
+ }
+}
+
+static struct nct6775_data *nct6775_update_device(struct device *dev)
+{
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int i, j;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
+ || !data->valid) {
+ /* Fan clock dividers */
+ nct6775_update_fan_div_common(data);
+
+ /* Measured voltages and limits */
+ for (i = 0; i < data->in_num; i++) {
+ if (!(data->have_in & (1 << i)))
+ continue;
+
+ data->in[i][0] = nct6775_read_value(data,
+ data->REG_VIN[i]);
+ data->in[i][1] = nct6775_read_value(data,
+ data->REG_IN_MINMAX[0][i]);
+ data->in[i][2] = nct6775_read_value(data,
+ data->REG_IN_MINMAX[1][i]);
+ }
+
+ /* Measured fan speeds and limits */
+ for (i = 0; i < ARRAY_SIZE(data->rpm); i++) {
+ u16 reg;
+
+ if (!(data->has_fan & (1 << i)))
+ continue;
+
+ reg = nct6775_read_value(data, data->REG_FAN[i]);
+ data->rpm[i] = data->fan_from_reg(reg,
+ data->fan_div[i]);
+
+ if (data->has_fan_min & (1 << i))
+ data->fan_min[i] = nct6775_read_value(data,
+ data->REG_FAN_MIN[i]);
+ data->fan_pulses[i] =
+ (nct6775_read_value(data, data->REG_FAN_PULSES[i])
+ >> data->FAN_PULSE_SHIFT[i]) & 0x03;
+
+ nct6775_select_fan_div(dev, data, i, reg);
+ }
+
+ nct6775_update_pwm(dev);
+ nct6775_update_pwm_limits(dev);
+
+ /* Measured temperatures and limits */
+ for (i = 0; i < NUM_TEMP; i++) {
+ if (!(data->have_temp & (1 << i)))
+ continue;
+ for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) {
+ if (data->reg_temp[j][i])
+ data->temp[j][i]
+ = nct6775_read_temp(data,
+ data->reg_temp[j][i]);
+ }
+ if (i >= NUM_TEMP_FIXED ||
+ !(data->have_temp_fixed & (1 << i)))
+ continue;
+ data->temp_offset[i]
+ = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
+ }
+
+ data->alarms = 0;
+ for (i = 0; i < NUM_REG_ALARM; i++) {
+ u8 alarm;
+
+ if (!data->REG_ALARM[i])
+ continue;
+ alarm = nct6775_read_value(data, data->REG_ALARM[i]);
+ data->alarms |= ((u64)alarm) << (i << 3);
+ }
+
+ data->beeps = 0;
+ for (i = 0; i < NUM_REG_BEEP; i++) {
+ u8 beep;
+
+ if (!data->REG_BEEP[i])
+ continue;
+ beep = nct6775_read_value(data, data->REG_BEEP[i]);
+ data->beeps |= ((u64)beep) << (i << 3);
+ }
+
+ data->last_updated = jiffies;
+ data->valid = true;
+ }
+
+ mutex_unlock(&data->update_lock);
+ return data;
+}
+
+/*
+ * 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;
+
+ 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);
+ nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr],
+ data->in[nr][index]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t
+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 = data->ALARM_BITS[sattr->index];
+
+ return sprintf(buf, "%u\n",
+ (unsigned int)((data->alarms >> nr) & 0x01));
+}
+
+static int find_temp_source(struct nct6775_data *data, int index, int count)
+{
+ int source = data->temp_src[index];
+ int nr;
+
+ for (nr = 0; nr < count; nr++) {
+ int src;
+
+ src = nct6775_read_value(data,
+ data->REG_TEMP_SOURCE[nr]) & 0x1f;
+ if (src == 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;
+
+ /*
+ * 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);
+}
+
+static ssize_t
+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 = data->BEEP_BITS[sattr->index];
+
+ return sprintf(buf, "%u\n",
+ (unsigned int)((data->beeps >> nr) & 0x01));
+}
+
+static ssize_t
+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);
+ nct6775_write_value(data, data->REG_BEEP[regindex],
+ (data->beeps >> (regindex << 3)) & 0xff);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+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;
+
+ /*
+ * 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);
+ nct6775_write_value(data, data->REG_BEEP[regindex],
+ (data->beeps >> (regindex << 3)) & 0xff);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static umode_t nct6775_in_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int in = index / 5; /* voltage index */
+
+ if (!(data->have_in & (1 << in)))
+ return 0;
+
+ return attr->mode;
+}
+
+SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
+SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0);
+SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep,
+ 0);
+SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg,
+ store_in_reg, 0, 1);
+SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, 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 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;
+
+ 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;
+
+ 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;
+
+ 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 == (1 << 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 == (1 << 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;
+ nct6775_write_fan_div_common(data, nr);
+ /* Give the chip time to sample a new speed value */
+ data->last_updated = jiffies;
+ }
+
+write_min:
+ nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]);
+ mutex_unlock(&data->update_lock);
+
+ return 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 = 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;
+ u8 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;
+ reg = nct6775_read_value(data, data->REG_FAN_PULSES[nr]);
+ reg &= ~(0x03 << data->FAN_PULSE_SHIFT[nr]);
+ reg |= (val & 3) << data->FAN_PULSE_SHIFT[nr];
+ nct6775_write_value(data, data->REG_FAN_PULSES[nr], reg);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static umode_t nct6775_fan_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ struct device *dev = container_of(kobj, struct device, 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 & (1 << 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 == 4 && !(data->has_fan_min & (1 << fan)))
+ return 0;
+ if (nr == 5 && data->kind != nct6775)
+ return 0;
+
+ return attr->mode;
+}
+
+SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
+SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL,
+ FAN_ALARM_BASE);
+SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep,
+ store_beep, FAN_ALARM_BASE);
+SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses,
+ store_fan_pulses, 0);
+SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min,
+ store_fan_min, 0);
+SENSOR_TEMPLATE(fan_div, "fan%d_div", S_IRUGO, 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 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;
+
+ 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;
+
+ 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);
+ nct6775_write_temp(data, data->reg_temp[index][nr],
+ data->temp[index][nr]);
+ mutex_unlock(&data->update_lock);
+ return 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);
+
+ 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;
+ nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val);
+ mutex_unlock(&data->update_lock);
+
+ return 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;
+
+ 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 vbat, diode, vbit, dbit;
+
+ 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;
+ vbat = nct6775_read_value(data, data->REG_VBAT) & ~vbit;
+ diode = nct6775_read_value(data, data->REG_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;
+ }
+ nct6775_write_value(data, data->REG_VBAT, vbat);
+ nct6775_write_value(data, data->REG_DIODE, diode);
+
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static umode_t nct6775_temp_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ struct device *dev = container_of(kobj, struct device, 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 & (1 << temp)))
+ 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 & (1 << temp)))
+ return 0;
+
+ return attr->mode;
+}
+
+SENSOR_TEMPLATE_2(temp_input, "temp%d_input", S_IRUGO, show_temp, NULL, 0, 0);
+SENSOR_TEMPLATE(temp_label, "temp%d_label", S_IRUGO, show_temp_label, NULL, 0);
+SENSOR_TEMPLATE_2(temp_max, "temp%d_max", S_IRUGO | S_IWUSR, show_temp,
+ store_temp, 0, 1);
+SENSOR_TEMPLATE_2(temp_max_hyst, "temp%d_max_hyst", S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0, 2);
+SENSOR_TEMPLATE_2(temp_crit, "temp%d_crit", S_IRUGO | S_IWUSR, show_temp,
+ store_temp, 0, 3);
+SENSOR_TEMPLATE_2(temp_lcrit, "temp%d_lcrit", S_IRUGO | S_IWUSR, show_temp,
+ store_temp, 0, 4);
+SENSOR_TEMPLATE(temp_offset, "temp%d_offset", S_IRUGO | S_IWUSR,
+ show_temp_offset, store_temp_offset, 0);
+SENSOR_TEMPLATE(temp_type, "temp%d_type", S_IRUGO | S_IWUSR, show_temp_type,
+ store_temp_type, 0);
+SENSOR_TEMPLATE(temp_alarm, "temp%d_alarm", S_IRUGO, show_temp_alarm, NULL, 0);
+SENSOR_TEMPLATE(temp_beep, "temp%d_beep", S_IRUGO | S_IWUSR, 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 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_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);
+
+ 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;
+ u8 reg;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err < 0)
+ return err;
+
+ if (val > 1)
+ return -EINVAL;
+
+ /* Setting DC mode 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;
+ reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
+ reg &= ~data->PWM_MODE_MASK[nr];
+ if (val)
+ reg |= data->PWM_MODE_MASK[nr];
+ nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
+ mutex_unlock(&data->update_lock);
+ return 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 pwm;
+
+ /*
+ * For automatic fan control modes, show current pwm readings.
+ * Otherwise, show the configured value.
+ */
+ if (index == 0 && data->pwm_enable[nr] > manual)
+ pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]);
+ 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;
+ u8 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;
+ nct6775_write_value(data, data->REG_PWM[index][nr], val);
+ if (index == 2) { /* floor: disable if val == 0 */
+ reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
+ reg &= 0x7f;
+ if (val)
+ reg |= 0x80;
+ nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
+ }
+ mutex_unlock(&data->update_lock);
+ return 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 void pwm_update_registers(struct nct6775_data *data, int nr)
+{
+ u8 reg;
+
+ switch (data->pwm_enable[nr]) {
+ case off:
+ case manual:
+ break;
+ case speed_cruise:
+ reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
+ reg = (reg & ~data->tolerance_mask) |
+ (data->target_speed_tolerance[nr] & data->tolerance_mask);
+ nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
+ nct6775_write_value(data, data->REG_TARGET[nr],
+ data->target_speed[nr] & 0xff);
+ if (data->REG_TOLERANCE_H) {
+ reg = (data->target_speed[nr] >> 8) & 0x0f;
+ reg |= (data->target_speed_tolerance[nr] & 0x38) << 1;
+ nct6775_write_value(data,
+ data->REG_TOLERANCE_H[nr],
+ reg);
+ }
+ break;
+ case thermal_cruise:
+ nct6775_write_value(data, data->REG_TARGET[nr],
+ data->target_temp[nr]);
+ /* intentional */
+ default:
+ reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
+ reg = (reg & ~data->tolerance_mask) |
+ data->temp_tolerance[0][nr];
+ nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
+ break;
+ }
+}
+
+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);
+
+ 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;
+ nct6775_write_value(data, data->REG_PWM[0][nr], 255);
+ }
+ pwm_update_registers(data, nr);
+ reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]);
+ reg &= 0x0f;
+ reg |= pwm_enable_to_reg(val) << 4;
+ nct6775_write_value(data, data->REG_FAN_MODE[nr], reg);
+ mutex_unlock(&data->update_lock);
+ return 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 & (1 << 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;
+
+ 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, reg, src;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err < 0)
+ return err;
+ if (val == 0 || val > NUM_TEMP)
+ return -EINVAL;
+ if (!(data->have_temp & (1 << (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;
+ reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]);
+ reg &= 0xe0;
+ reg |= src;
+ nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg);
+ mutex_unlock(&data->update_lock);
+
+ return 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;
+
+ 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, reg, src;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err < 0)
+ return err;
+ if (val > NUM_TEMP)
+ return -EINVAL;
+ if (val && (!(data->have_temp & (1 << (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;
+ reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
+ reg &= 0xe0;
+ reg |= (src | 0x80);
+ nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
+ } else {
+ data->pwm_weight_temp_sel[nr] = 0;
+ reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]);
+ reg &= 0x7f;
+ nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg);
+ }
+ mutex_unlock(&data->update_lock);
+
+ return 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);
+
+ 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;
+ pwm_update_registers(data, nr);
+ mutex_unlock(&data->update_lock);
+ return 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;
+
+ 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;
+ pwm_update_registers(data, nr);
+ mutex_unlock(&data->update_lock);
+ return 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;
+
+ 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)
+ pwm_update_registers(data, nr);
+ else
+ nct6775_write_value(data,
+ data->REG_CRITICAL_TEMP_TOLERANCE[nr],
+ val);
+ mutex_unlock(&data->update_lock);
+ return 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.
+ */
+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 low = data->target_speed[nr] - data->target_speed_tolerance[nr];
+ int high = data->target_speed[nr] + data->target_speed_tolerance[nr];
+ int tolerance;
+
+ 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;
+ pwm_update_registers(data, nr);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+SENSOR_TEMPLATE_2(pwm, "pwm%d", S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0);
+SENSOR_TEMPLATE(pwm_mode, "pwm%d_mode", S_IWUSR | S_IRUGO, show_pwm_mode,
+ store_pwm_mode, 0);
+SENSOR_TEMPLATE(pwm_enable, "pwm%d_enable", S_IWUSR | S_IRUGO, show_pwm_enable,
+ store_pwm_enable, 0);
+SENSOR_TEMPLATE(pwm_temp_sel, "pwm%d_temp_sel", S_IWUSR | S_IRUGO,
+ show_pwm_temp_sel, store_pwm_temp_sel, 0);
+SENSOR_TEMPLATE(pwm_target_temp, "pwm%d_target_temp", S_IWUSR | S_IRUGO,
+ show_target_temp, store_target_temp, 0);
+SENSOR_TEMPLATE(fan_target, "fan%d_target", S_IWUSR | S_IRUGO,
+ show_target_speed, store_target_speed, 0);
+SENSOR_TEMPLATE(fan_tolerance, "fan%d_tolerance", S_IWUSR | S_IRUGO,
+ 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;
+
+ 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;
+ nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+SENSOR_TEMPLATE(pwm_weight_temp_sel, "pwm%d_weight_temp_sel", S_IWUSR | S_IRUGO,
+ show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, 0);
+SENSOR_TEMPLATE_2(pwm_weight_temp_step, "pwm%d_weight_temp_step",
+ S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 0);
+SENSOR_TEMPLATE_2(pwm_weight_temp_step_tol, "pwm%d_weight_temp_step_tol",
+ S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 1);
+SENSOR_TEMPLATE_2(pwm_weight_temp_step_base, "pwm%d_weight_temp_step_base",
+ S_IWUSR | S_IRUGO, show_weight_temp, store_weight_temp, 0, 2);
+SENSOR_TEMPLATE_2(pwm_weight_duty_step, "pwm%d_weight_duty_step",
+ S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 5);
+SENSOR_TEMPLATE_2(pwm_weight_duty_base, "pwm%d_weight_duty_base",
+ S_IWUSR | S_IRUGO, 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;
+
+ 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;
+ nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val);
+ mutex_unlock(&data->update_lock);
+ return 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);
+
+ 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;
+ u8 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) {
+ 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) */
+ reg = nct6775_read_value(data,
+ NCT6775_REG_CRITICAL_ENAB[nr]);
+ if (val)
+ reg |= 0x02;
+ else
+ reg &= ~0x02;
+ nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr],
+ reg);
+ break;
+ case nct6776:
+ break; /* always enabled, nothing to do */
+ case nct6106:
+ case nct6779:
+ case nct6791:
+ case nct6792:
+ nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
+ val);
+ reg = nct6775_read_value(data,
+ data->REG_CRITICAL_PWM_ENABLE[nr]);
+ if (val == 255)
+ reg &= ~data->CRITICAL_PWM_ENABLE_MASK;
+ else
+ reg |= data->CRITICAL_PWM_ENABLE_MASK;
+ nct6775_write_value(data,
+ data->REG_CRITICAL_PWM_ENABLE[nr],
+ reg);
+ break;
+ }
+ }
+ mutex_unlock(&data->update_lock);
+ return 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;
+
+ /*
+ * 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) {
+ nct6775_write_value(data,
+ NCT6775_AUTO_TEMP(data, nr, point),
+ data->auto_temp[nr][point]);
+ } else {
+ nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr],
+ data->auto_temp[nr][point]);
+ }
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ struct device *dev = container_of(kobj, struct device, 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 & (1 << 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 attr->mode;
+}
+
+SENSOR_TEMPLATE_2(pwm_stop_time, "pwm%d_stop_time", S_IWUSR | S_IRUGO,
+ show_fan_time, store_fan_time, 0, 0);
+SENSOR_TEMPLATE_2(pwm_step_up_time, "pwm%d_step_up_time", S_IWUSR | S_IRUGO,
+ show_fan_time, store_fan_time, 0, 1);
+SENSOR_TEMPLATE_2(pwm_step_down_time, "pwm%d_step_down_time", S_IWUSR | S_IRUGO,
+ show_fan_time, store_fan_time, 0, 2);
+SENSOR_TEMPLATE_2(pwm_start, "pwm%d_start", S_IWUSR | S_IRUGO, show_pwm,
+ store_pwm, 0, 1);
+SENSOR_TEMPLATE_2(pwm_floor, "pwm%d_floor", S_IWUSR | S_IRUGO, show_pwm,
+ store_pwm, 0, 2);
+SENSOR_TEMPLATE_2(pwm_temp_tolerance, "pwm%d_temp_tolerance", S_IWUSR | S_IRUGO,
+ show_temp_tolerance, store_temp_tolerance, 0, 0);
+SENSOR_TEMPLATE_2(pwm_crit_temp_tolerance, "pwm%d_crit_temp_tolerance",
+ S_IWUSR | S_IRUGO, show_temp_tolerance, store_temp_tolerance,
+ 0, 1);
+
+SENSOR_TEMPLATE_2(pwm_max, "pwm%d_max", S_IWUSR | S_IRUGO, show_pwm, store_pwm,
+ 0, 3);
+
+SENSOR_TEMPLATE_2(pwm_step, "pwm%d_step", S_IWUSR | S_IRUGO, show_pwm,
+ store_pwm, 0, 4);
+
+SENSOR_TEMPLATE_2(pwm_auto_point1_pwm, "pwm%d_auto_point1_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 0);
+SENSOR_TEMPLATE_2(pwm_auto_point1_temp, "pwm%d_auto_point1_temp",
+ S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 0);
+
+SENSOR_TEMPLATE_2(pwm_auto_point2_pwm, "pwm%d_auto_point2_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 1);
+SENSOR_TEMPLATE_2(pwm_auto_point2_temp, "pwm%d_auto_point2_temp",
+ S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 1);
+
+SENSOR_TEMPLATE_2(pwm_auto_point3_pwm, "pwm%d_auto_point3_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 2);
+SENSOR_TEMPLATE_2(pwm_auto_point3_temp, "pwm%d_auto_point3_temp",
+ S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 2);
+
+SENSOR_TEMPLATE_2(pwm_auto_point4_pwm, "pwm%d_auto_point4_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 3);
+SENSOR_TEMPLATE_2(pwm_auto_point4_temp, "pwm%d_auto_point4_temp",
+ S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 3);
+
+SENSOR_TEMPLATE_2(pwm_auto_point5_pwm, "pwm%d_auto_point5_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 4);
+SENSOR_TEMPLATE_2(pwm_auto_point5_temp, "pwm%d_auto_point5_temp",
+ S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 4);
+
+SENSOR_TEMPLATE_2(pwm_auto_point6_pwm, "pwm%d_auto_point6_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 5);
+SENSOR_TEMPLATE_2(pwm_auto_point6_temp, "pwm%d_auto_point6_temp",
+ S_IWUSR | S_IRUGO, show_auto_temp, store_auto_temp, 0, 5);
+
+SENSOR_TEMPLATE_2(pwm_auto_point7_pwm, "pwm%d_auto_point7_pwm",
+ S_IWUSR | S_IRUGO, show_auto_pwm, store_auto_pwm, 0, 6);
+SENSOR_TEMPLATE_2(pwm_auto_point7_temp, "pwm%d_auto_point7_temp",
+ S_IWUSR | S_IRUGO, 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 struct sensor_template_group nct6775_pwm_template_group = {
+ .templates = nct6775_attributes_pwm_template,
+ .is_visible = nct6775_pwm_is_visible,
+ .base = 1,
+};
+
+static ssize_t
+show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct nct6775_data *data = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
+}
+
+static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
+
+/* Case open detection */
+
+static ssize_t
+clear_caseopen(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
+ unsigned long val;
+ u8 reg;
+ int ret;
+
+ if (kstrtoul(buf, 10, &val) || val != 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+
+ /*
+ * Use CR registers to clear caseopen status.
+ * The CR registers are the same for all chips, and not all chips
+ * support clearing the caseopen status through "regular" registers.
+ */
+ ret = superio_enter(data->sioreg);
+ if (ret) {
+ count = ret;
+ goto error;
+ }
+
+ superio_select(data->sioreg, NCT6775_LD_ACPI);
+ reg = superio_inb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
+ reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
+ superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
+ reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
+ superio_outb(data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
+ superio_exit(data->sioreg);
+
+ data->valid = false; /* Force cache refresh */
+error:
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
+ clear_caseopen, INTRUSION_ALARM_BASE);
+static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
+ clear_caseopen, INTRUSION_ALARM_BASE + 1);
+static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep,
+ store_beep, INTRUSION_ALARM_BASE);
+static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep,
+ store_beep, INTRUSION_ALARM_BASE + 1);
+static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep,
+ store_beep, BEEP_ENABLE_BASE);
+
+static umode_t nct6775_other_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct nct6775_data *data = dev_get_drvdata(dev);
+
+ if (index == 0 && !data->have_vid)
+ return 0;
+
+ if (index == 1 || index == 2) {
+ if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
+ return 0;
+ }
+
+ if (index == 3 || index == 4) {
+ if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
+ return 0;
+ }
+
+ return attr->mode;
+}
+
+/*
+ * nct6775_other_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 attribute *nct6775_attributes_other[] = {
+ &dev_attr_cpu0_vid.attr, /* 0 */
+ &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
+ &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
+ &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
+ &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
+ &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
+
+ NULL
+};
+
+static const struct attribute_group nct6775_group_other = {
+ .attrs = nct6775_attributes_other,
+ .is_visible = nct6775_other_is_visible,
+};
+
+static inline void nct6775_init_device(struct nct6775_data *data)
+{
+ int i;
+ u8 tmp, diode;
+
+ /* Start monitoring if needed */
+ if (data->REG_CONFIG) {
+ tmp = nct6775_read_value(data, data->REG_CONFIG);
+ if (!(tmp & 0x01))
+ nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01);
+ }
+
+ /* Enable temperature sensors if needed */
+ for (i = 0; i < NUM_TEMP; i++) {
+ if (!(data->have_temp & (1 << i)))
+ continue;
+ if (!data->reg_temp_config[i])
+ continue;
+ tmp = nct6775_read_value(data, data->reg_temp_config[i]);
+ if (tmp & 0x01)
+ nct6775_write_value(data, data->reg_temp_config[i],
+ tmp & 0xfe);
+ }
+
+ /* Enable VBAT monitoring if needed */
+ tmp = nct6775_read_value(data, data->REG_VBAT);
+ if (!(tmp & 0x01))
+ nct6775_write_value(data, data->REG_VBAT, tmp | 0x01);
+
+ diode = nct6775_read_value(data, data->REG_DIODE);
+
+ for (i = 0; i < data->temp_fixed_num; i++) {
+ if (!(data->have_temp_fixed & (1 << 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;
+ }
+}
+
+static void
+nct6775_check_fan_inputs(struct nct6775_data *data)
+{
+ bool fan3pin, fan4pin, fan4min, fan5pin, fan6pin;
+ bool pwm3pin, pwm4pin, pwm5pin, pwm6pin;
+ int sioreg = data->sioreg;
+ int regval;
+
+ /* Store SIO_REG_ENABLE for use during resume */
+ superio_select(sioreg, NCT6775_LD_HWM);
+ data->sio_reg_enable = superio_inb(sioreg, SIO_REG_ENABLE);
+
+ /* fan4 and fan5 share some pins with the GPIO and serial flash */
+ if (data->kind == nct6775) {
+ regval = superio_inb(sioreg, 0x2c);
+
+ fan3pin = regval & (1 << 6);
+ pwm3pin = regval & (1 << 7);
+
+ /* On NCT6775, fan4 shares pins with the fdc interface */
+ fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
+ fan4min = false;
+ fan5pin = false;
+ fan6pin = false;
+ pwm4pin = false;
+ pwm5pin = false;
+ pwm6pin = false;
+ } else if (data->kind == nct6776) {
+ bool gpok = superio_inb(sioreg, 0x27) & 0x80;
+ const char *board_vendor, *board_name;
+
+ board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+ board_name = dmi_get_system_info(DMI_BOARD_NAME);
+
+ if (board_name && board_vendor &&
+ !strcmp(board_vendor, "ASRock")) {
+ /*
+ * Auxiliary fan monitoring is not enabled on ASRock
+ * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
+ * Observed with BIOS version 2.00.
+ */
+ if (!strcmp(board_name, "Z77 Pro4-M")) {
+ if ((data->sio_reg_enable & 0xe0) != 0xe0) {
+ data->sio_reg_enable |= 0xe0;
+ superio_outb(sioreg, SIO_REG_ENABLE,
+ data->sio_reg_enable);
+ }
+ }
+ }
+
+ if (data->sio_reg_enable & 0x80)
+ fan3pin = gpok;
+ else
+ fan3pin = !(superio_inb(sioreg, 0x24) & 0x40);
+
+ if (data->sio_reg_enable & 0x40)
+ fan4pin = gpok;
+ else
+ fan4pin = superio_inb(sioreg, 0x1C) & 0x01;
+
+ if (data->sio_reg_enable & 0x20)
+ fan5pin = gpok;
+ else
+ fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
+
+ fan4min = fan4pin;
+ fan6pin = false;
+ pwm3pin = fan3pin;
+ pwm4pin = false;
+ pwm5pin = false;
+ pwm6pin = false;
+ } else if (data->kind == nct6106) {
+ regval = superio_inb(sioreg, 0x24);
+ fan3pin = !(regval & 0x80);
+ pwm3pin = regval & 0x08;
+
+ fan4pin = false;
+ fan4min = false;
+ fan5pin = false;
+ fan6pin = false;
+ pwm4pin = false;
+ pwm5pin = false;
+ pwm6pin = false;
+ } else { /* NCT6779D, NCT6791D, or NCT6792D */
+ regval = superio_inb(sioreg, 0x1c);
+
+ fan3pin = !(regval & (1 << 5));
+ fan4pin = !(regval & (1 << 6));
+ fan5pin = !(regval & (1 << 7));
+
+ pwm3pin = !(regval & (1 << 0));
+ pwm4pin = !(regval & (1 << 1));
+ pwm5pin = !(regval & (1 << 2));
+
+ fan4min = fan4pin;
+
+ if (data->kind == nct6791 || data->kind == nct6792) {
+ regval = superio_inb(sioreg, 0x2d);
+ fan6pin = (regval & (1 << 1));
+ pwm6pin = (regval & (1 << 0));
+ } else { /* NCT6779D */
+ fan6pin = false;
+ pwm6pin = false;
+ }
+ }
+
+ /* fan 1 and 2 (0x03) are always present */
+ data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
+ (fan5pin << 4) | (fan6pin << 5);
+ data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
+ (fan5pin << 4);
+ data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
+ (pwm5pin << 4) | (pwm6pin << 5);
+}
+
+static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
+ int *available, int *mask)
+{
+ int i;
+ u8 src;
+
+ for (i = 0; i < data->pwm_num && *available; i++) {
+ int index;
+
+ if (!regp[i])
+ continue;
+ src = nct6775_read_value(data, regp[i]);
+ src &= 0x1f;
+ if (!src || (*mask & (1 << src)))
+ continue;
+ if (src >= data->temp_label_num ||
+ !strlen(data->temp_label[src]))
+ continue;
+
+ index = __ffs(*available);
+ nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src);
+ *available &= ~(1 << index);
+ *mask |= 1 << src;
+ }
+}
+
+static int nct6775_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
+ struct nct6775_data *data;
+ struct resource *res;
+ int i, s, err = 0;
+ int src, mask, available;
+ 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;
+ u8 cr2a;
+ struct attribute_group *group;
+ struct device *hwmon_dev;
+ int num_attr_groups = 0;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
+ DRVNAME))
+ return -EBUSY;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->kind = sio_data->kind;
+ data->sioreg = sio_data->sioreg;
+ data->addr = res->start;
+ mutex_init(&data->update_lock);
+ data->name = nct6775_device_names[data->kind];
+ data->bank = 0xff; /* Force initial bank selection */
+ platform_set_drvdata(pdev, data);
+
+ 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_label_num = ARRAY_SIZE(nct6776_temp_label);
+
+ 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_PWM[0] = NCT6106_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 = NCT6106_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;
+
+ 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);
+ 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_label_num = ARRAY_SIZE(nct6775_temp_label);
+
+ 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;
+
+ 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);
+ 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_label_num = ARRAY_SIZE(nct6776_temp_label);
+
+ 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] = NCT6775_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6775_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;
+
+ 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);
+ 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_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 = nct6779_temp_label;
+ data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+
+ 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] = NCT6775_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6775_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;
+
+ 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);
+ 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:
+ data->in_num = 15;
+ data->pwm_num = 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_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 = nct6779_temp_label;
+ data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+
+ 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] = NCT6775_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6775_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;
+
+ 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 = (1 << 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;
+
+ src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
+ if (!src || (mask & (1 << src)))
+ available |= 1 << i;
+
+ mask |= 1 << src;
+ }
+
+ /*
+ * Now find unmonitored temperature registers and enable monitoring
+ * if additional monitoring registers are available.
+ */
+ add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask);
+ add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask);
+
+ mask = 0;
+ s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */
+ for (i = 0; i < num_reg_temp; i++) {
+ if (reg_temp[i] == 0)
+ continue;
+
+ src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f;
+ if (!src || (mask & (1 << src)))
+ continue;
+
+ if (src >= data->temp_label_num ||
+ !strlen(data->temp_label[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 |= 1 << src;
+
+ /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
+ if (src <= data->temp_fixed_num) {
+ data->have_temp |= 1 << (src - 1);
+ data->have_temp_fixed |= 1 << (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 |= 1 << 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;
+
+ src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
+ if (!src || (mask & (1 << src)))
+ continue;
+
+ if (src >= data->temp_label_num ||
+ !strlen(data->temp_label[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;
+ }
+
+ mask |= 1 << src;
+
+ /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
+ if (src <= data->temp_fixed_num) {
+ if (data->have_temp & (1 << (src - 1)))
+ continue;
+ data->have_temp |= 1 << (src - 1);
+ data->have_temp_fixed |= 1 << (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 |= 1 << 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 < data->temp_label_num - 1; i++) {
+ if (!reg_temp_alternate[i])
+ continue;
+ if (mask & (1 << (i + 1)))
+ continue;
+ if (i < data->temp_fixed_num) {
+ if (data->have_temp & (1 << i))
+ continue;
+ data->have_temp |= 1 << i;
+ data->have_temp_fixed |= 1 << 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 |= 1 << s;
+ data->reg_temp[0][s] = reg_temp_alternate[i];
+ data->temp_src[s] = i + 1;
+ s++;
+ }
+#endif /* USE_ALTERNATE */
+
+ /* Initialize the chip */
+ nct6775_init_device(data);
+
+ err = superio_enter(sio_data->sioreg);
+ if (err)
+ return err;
+
+ cr2a = superio_inb(sio_data->sioreg, 0x2a);
+ switch (data->kind) {
+ case nct6775:
+ data->have_vid = (cr2a & 0x40);
+ break;
+ case nct6776:
+ data->have_vid = (cr2a & 0x60) == 0x40;
+ break;
+ case nct6106:
+ case nct6779:
+ case nct6791:
+ case nct6792:
+ break;
+ }
+
+ /*
+ * Read VID value
+ * We can get the VID input values directly at logical device D 0xe3.
+ */
+ if (data->have_vid) {
+ superio_select(sio_data->sioreg, NCT6775_LD_VID);
+ data->vid = superio_inb(sio_data->sioreg, 0xe3);
+ data->vrm = vid_which_vrm();
+ }
+
+ if (fan_debounce) {
+ u8 tmp;
+
+ superio_select(sio_data->sioreg, NCT6775_LD_HWM);
+ tmp = superio_inb(sio_data->sioreg,
+ NCT6775_REG_CR_FAN_DEBOUNCE);
+ switch (data->kind) {
+ case nct6106:
+ tmp |= 0xe0;
+ break;
+ case nct6775:
+ tmp |= 0x1e;
+ break;
+ case nct6776:
+ case nct6779:
+ tmp |= 0x3e;
+ break;
+ case nct6791:
+ case nct6792:
+ tmp |= 0x7e;
+ break;
+ }
+ superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE,
+ tmp);
+ dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
+ data->name);
+ }
+
+ nct6775_check_fan_inputs(data);
+
+ superio_exit(sio_data->sioreg);
+
+ /* Read fan clock dividers immediately */
+ nct6775_init_fan_common(dev, data);
+
+ /* Register sysfs hooks */
+ group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group,
+ data->pwm_num);
+ if (IS_ERR(group))
+ return PTR_ERR(group);
+
+ data->groups[num_attr_groups++] = group;
+
+ group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
+ fls(data->have_in));
+ if (IS_ERR(group))
+ return PTR_ERR(group);
+
+ data->groups[num_attr_groups++] = group;
+
+ group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
+ fls(data->has_fan));
+ if (IS_ERR(group))
+ return PTR_ERR(group);
+
+ data->groups[num_attr_groups++] = group;
+
+ group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
+ fls(data->have_temp));
+ if (IS_ERR(group))
+ return PTR_ERR(group);
+
+ data->groups[num_attr_groups++] = group;
+ data->groups[num_attr_groups++] = &nct6775_group_other;
+
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
+ data, data->groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static void nct6791_enable_io_mapping(int sioaddr)
+{
+ int val;
+
+ val = superio_inb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
+ if (val & 0x10) {
+ pr_info("Enabling hardware monitor logical device mappings.\n");
+ superio_outb(sioaddr, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
+ val & ~0x10);
+ }
+}
+
+static int __maybe_unused nct6775_suspend(struct device *dev)
+{
+ struct nct6775_data *data = nct6775_update_device(dev);
+
+ mutex_lock(&data->update_lock);
+ data->vbat = nct6775_read_value(data, data->REG_VBAT);
+ if (data->kind == nct6775) {
+ data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1);
+ data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2);
+ }
+ mutex_unlock(&data->update_lock);
+
+ return 0;
+}
+
+static int __maybe_unused nct6775_resume(struct device *dev)
+{
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int sioreg = data->sioreg;
+ int i, j, err = 0;
+ u8 reg;
+
+ mutex_lock(&data->update_lock);
+ data->bank = 0xff; /* Force initial bank selection */
+
+ err = superio_enter(sioreg);
+ if (err)
+ goto abort;
+
+ superio_select(sioreg, NCT6775_LD_HWM);
+ reg = superio_inb(sioreg, SIO_REG_ENABLE);
+ if (reg != data->sio_reg_enable)
+ superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
+
+ if (data->kind == nct6791 || data->kind == nct6792)
+ nct6791_enable_io_mapping(sioreg);
+
+ superio_exit(sioreg);
+
+ /* Restore limits */
+ for (i = 0; i < data->in_num; i++) {
+ if (!(data->have_in & (1 << i)))
+ continue;
+
+ nct6775_write_value(data, data->REG_IN_MINMAX[0][i],
+ data->in[i][1]);
+ nct6775_write_value(data, data->REG_IN_MINMAX[1][i],
+ data->in[i][2]);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
+ if (!(data->has_fan_min & (1 << i)))
+ continue;
+
+ nct6775_write_value(data, data->REG_FAN_MIN[i],
+ data->fan_min[i]);
+ }
+
+ for (i = 0; i < NUM_TEMP; i++) {
+ if (!(data->have_temp & (1 << i)))
+ continue;
+
+ for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
+ if (data->reg_temp[j][i])
+ nct6775_write_temp(data, data->reg_temp[j][i],
+ data->temp[j][i]);
+ }
+
+ /* Restore other settings */
+ nct6775_write_value(data, data->REG_VBAT, data->vbat);
+ if (data->kind == nct6775) {
+ nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
+ nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
+ }
+
+abort:
+ /* Force re-reading all values */
+ data->valid = false;
+ mutex_unlock(&data->update_lock);
+
+ return err;
+}
+
+static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
+
+static struct platform_driver nct6775_driver = {
+ .driver = {
+ .name = DRVNAME,
+ .pm = &nct6775_dev_pm_ops,
+ },
+ .probe = nct6775_probe,
+};
+
+static const char * const nct6775_sio_names[] __initconst = {
+ "NCT6106D",
+ "NCT6775F",
+ "NCT6776D/F",
+ "NCT6779D",
+ "NCT6791D",
+ "NCT6792D",
+};
+
+/* nct6775_find() looks for a '627 in the Super-I/O config space */
+static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
+{
+ u16 val;
+ int err;
+ int addr;
+
+ err = superio_enter(sioaddr);
+ if (err)
+ return err;
+
+ if (force_id)
+ val = force_id;
+ else
+ val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
+ | superio_inb(sioaddr, SIO_REG_DEVID + 1);
+ switch (val & SIO_ID_MASK) {
+ case SIO_NCT6106_ID:
+ sio_data->kind = nct6106;
+ break;
+ case SIO_NCT6775_ID:
+ sio_data->kind = nct6775;
+ break;
+ case SIO_NCT6776_ID:
+ sio_data->kind = nct6776;
+ break;
+ case SIO_NCT6779_ID:
+ sio_data->kind = nct6779;
+ break;
+ case SIO_NCT6791_ID:
+ sio_data->kind = nct6791;
+ break;
+ case SIO_NCT6792_ID:
+ sio_data->kind = nct6792;
+ break;
+ default:
+ if (val != 0xffff)
+ pr_debug("unsupported chip ID: 0x%04x\n", val);
+ superio_exit(sioaddr);
+ return -ENODEV;
+ }
+
+ /* We have a known chip, find the HWM I/O address */
+ superio_select(sioaddr, NCT6775_LD_HWM);
+ val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
+ | superio_inb(sioaddr, SIO_REG_ADDR + 1);
+ addr = val & IOREGION_ALIGNMENT;
+ if (addr == 0) {
+ pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
+ superio_exit(sioaddr);
+ return -ENODEV;
+ }
+
+ /* Activate logical device if needed */
+ val = superio_inb(sioaddr, SIO_REG_ENABLE);
+ if (!(val & 0x01)) {
+ pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
+ superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
+ }
+
+ if (sio_data->kind == nct6791 || sio_data->kind == nct6792)
+ nct6791_enable_io_mapping(sioaddr);
+
+ superio_exit(sioaddr);
+ pr_info("Found %s or compatible chip at %#x:%#x\n",
+ nct6775_sio_names[sio_data->kind], sioaddr, addr);
+ sio_data->sioreg = sioaddr;
+
+ return addr;
+}
+
+/*
+ * when Super-I/O functions move to a separate file, the Super-I/O
+ * bus will manage the lifetime of the device and this module will only keep
+ * track of the nct6775 driver. But since we use platform_device_alloc(), we
+ * must keep track of the device
+ */
+static struct platform_device *pdev[2];
+
+static int __init sensors_nct6775_init(void)
+{
+ int i, err;
+ bool found = false;
+ int address;
+ struct resource res;
+ struct nct6775_sio_data sio_data;
+ int sioaddr[2] = { 0x2e, 0x4e };
+
+ err = platform_driver_register(&nct6775_driver);
+ if (err)
+ return err;
+
+ /*
+ * initialize sio_data->kind and sio_data->sioreg.
+ *
+ * when Super-I/O functions move to a separate file, the Super-I/O
+ * driver will probe 0x2e and 0x4e and auto-detect the presence of a
+ * nct6775 hardware monitor, and call probe()
+ */
+ for (i = 0; i < ARRAY_SIZE(pdev); i++) {
+ address = nct6775_find(sioaddr[i], &sio_data);
+ if (address <= 0)
+ continue;
+
+ found = true;
+
+ pdev[i] = platform_device_alloc(DRVNAME, address);
+ if (!pdev[i]) {
+ err = -ENOMEM;
+ goto exit_device_unregister;
+ }
+
+ err = platform_device_add_data(pdev[i], &sio_data,
+ sizeof(struct nct6775_sio_data));
+ if (err)
+ goto exit_device_put;
+
+ memset(&res, 0, sizeof(res));
+ res.name = DRVNAME;
+ res.start = address + IOREGION_OFFSET;
+ res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
+ res.flags = IORESOURCE_IO;
+
+ err = acpi_check_resource_conflict(&res);
+ if (err) {
+ platform_device_put(pdev[i]);
+ pdev[i] = NULL;
+ continue;
+ }
+
+ err = platform_device_add_resources(pdev[i], &res, 1);
+ if (err)
+ goto exit_device_put;
+
+ /* platform_device_add calls probe() */
+ err = platform_device_add(pdev[i]);
+ if (err)
+ goto exit_device_put;
+ }
+ if (!found) {
+ err = -ENODEV;
+ goto exit_unregister;
+ }
+
+ return 0;
+
+exit_device_put:
+ platform_device_put(pdev[i]);
+exit_device_unregister:
+ while (--i >= 0) {
+ if (pdev[i])
+ platform_device_unregister(pdev[i]);
+ }
+exit_unregister:
+ platform_driver_unregister(&nct6775_driver);
+ return err;
+}
+
+static void __exit sensors_nct6775_exit(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pdev); i++) {
+ if (pdev[i])
+ platform_device_unregister(pdev[i]);
+ }
+ platform_driver_unregister(&nct6775_driver);
+}
+
+MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
+MODULE_DESCRIPTION("NCT6106D/NCT6775F/NCT6776F/NCT6779D/NCT6791D/NCT6792D driver");
+MODULE_LICENSE("GPL");
+
+module_init(sensors_nct6775_init);
+module_exit(sensors_nct6775_exit);
Code Review / kvmfornfv.git / blobdiff