| /* |
| * w83627ehf - Driver for the hardware monitoring functionality of |
| * the Winbond W83627EHF Super-I/O chip |
| * Copyright (C) 2005-2012 Jean Delvare <khali@linux-fr.org> |
| * 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 |
| * |
| * Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help |
| * in testing and debugging this driver. |
| * |
| * This driver also supports the W83627EHG, which is the lead-free |
| * version of the W83627EHF. |
| * |
| * 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 |
| * w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3 |
| * 0x8860 0xa1 |
| * w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3 |
| * w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3 |
| * w83627uhg 8 2 2 3 0xa230 0xc1 0x5ca3 |
| * w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3 |
| * w83667hg-b 9 5 3 4 0xb350 0xc1 0x5ca3 |
| * nct6775f 9 4 3 9 0xb470 0xc1 0x5ca3 |
| * nct6776f 9 5 3 9 0xC330 0xc1 0x5ca3 |
| */ |
| |
| #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/io.h> |
| #include "lm75.h" |
| |
| enum kinds { |
| w83627ehf, w83627dhg, w83627dhg_p, w83627uhg, |
| w83667hg, w83667hg_b, nct6775, nct6776, |
| }; |
| |
| /* used to set data->name = w83627ehf_device_names[data->sio_kind] */ |
| static const char * const w83627ehf_device_names[] = { |
| "w83627ehf", |
| "w83627dhg", |
| "w83627dhg", |
| "w83627uhg", |
| "w83667hg", |
| "w83667hg", |
| "nct6775", |
| "nct6776", |
| }; |
| |
| 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 "w83627ehf" |
| |
| /* |
| * Super-I/O constants and functions |
| */ |
| |
| #define W83627EHF_LD_HWM 0x0b |
| #define W83667HG_LD_VID 0x0d |
| |
| #define SIO_REG_LDSEL 0x07 /* Logical device select */ |
| #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ |
| #define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */ |
| #define SIO_REG_ENABLE 0x30 /* Logical device enable */ |
| #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ |
| #define SIO_REG_VID_CTRL 0xF0 /* VID control */ |
| #define SIO_REG_VID_DATA 0xF1 /* VID data */ |
| |
| #define SIO_W83627EHF_ID 0x8850 |
| #define SIO_W83627EHG_ID 0x8860 |
| #define SIO_W83627DHG_ID 0xa020 |
| #define SIO_W83627DHG_P_ID 0xb070 |
| #define SIO_W83627UHG_ID 0xa230 |
| #define SIO_W83667HG_ID 0xa510 |
| #define SIO_W83667HG_B_ID 0xb350 |
| #define SIO_NCT6775_ID 0xb470 |
| #define SIO_NCT6776_ID 0xc330 |
| #define SIO_ID_MASK 0xFFF0 |
| |
| 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 void |
| superio_enter(int ioreg) |
| { |
| outb(0x87, ioreg); |
| outb(0x87, ioreg); |
| } |
| |
| static inline void |
| superio_exit(int ioreg) |
| { |
| outb(0xaa, ioreg); |
| outb(0x02, ioreg); |
| outb(0x02, ioreg + 1); |
| } |
| |
| /* |
| * 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 W83627EHF_REG_BANK 0x4E |
| #define W83627EHF_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 |
| */ |
| |
| static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 }; |
| static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c }; |
| |
| /* The W83627EHF registers for nr=7,8,9 are in bank 5 */ |
| #define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \ |
| (0x554 + (((nr) - 7) * 2))) |
| #define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \ |
| (0x555 + (((nr) - 7) * 2))) |
| #define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \ |
| (0x550 + (nr) - 7)) |
| |
| static const u16 W83627EHF_REG_TEMP[] = { 0x27, 0x150, 0x250, 0x7e }; |
| static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x3a, 0x153, 0x253, 0 }; |
| static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x39, 0x155, 0x255, 0 }; |
| static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0, 0x152, 0x252, 0 }; |
| |
| /* Fan clock dividers are spread over the following five registers */ |
| #define W83627EHF_REG_FANDIV1 0x47 |
| #define W83627EHF_REG_FANDIV2 0x4B |
| #define W83627EHF_REG_VBAT 0x5D |
| #define W83627EHF_REG_DIODE 0x59 |
| #define W83627EHF_REG_SMI_OVT 0x4C |
| |
| /* NCT6775F has its own fan divider registers */ |
| #define NCT6775_REG_FANDIV1 0x506 |
| #define NCT6775_REG_FANDIV2 0x507 |
| #define NCT6775_REG_FAN_DEBOUNCE 0xf0 |
| |
| #define W83627EHF_REG_ALARM1 0x459 |
| #define W83627EHF_REG_ALARM2 0x45A |
| #define W83627EHF_REG_ALARM3 0x45B |
| |
| #define W83627EHF_REG_CASEOPEN_DET 0x42 /* SMI STATUS #2 */ |
| #define W83627EHF_REG_CASEOPEN_CLR 0x46 /* SMI MASK #3 */ |
| |
| /* SmartFan registers */ |
| #define W83627EHF_REG_FAN_STEPUP_TIME 0x0f |
| #define W83627EHF_REG_FAN_STEPDOWN_TIME 0x0e |
| |
| /* DC or PWM output fan configuration */ |
| static const u8 W83627EHF_REG_PWM_ENABLE[] = { |
| 0x04, /* SYS FAN0 output mode and PWM mode */ |
| 0x04, /* CPU FAN0 output mode and PWM mode */ |
| 0x12, /* AUX FAN mode */ |
| 0x62, /* CPU FAN1 mode */ |
| }; |
| |
| static const u8 W83627EHF_PWM_MODE_SHIFT[] = { 0, 1, 0, 6 }; |
| static const u8 W83627EHF_PWM_ENABLE_SHIFT[] = { 2, 4, 1, 4 }; |
| |
| /* FAN Duty Cycle, be used to control */ |
| static const u16 W83627EHF_REG_PWM[] = { 0x01, 0x03, 0x11, 0x61 }; |
| static const u16 W83627EHF_REG_TARGET[] = { 0x05, 0x06, 0x13, 0x63 }; |
| static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 }; |
| |
| /* Advanced Fan control, some values are common for all fans */ |
| static const u16 W83627EHF_REG_FAN_START_OUTPUT[] = { 0x0a, 0x0b, 0x16, 0x65 }; |
| static const u16 W83627EHF_REG_FAN_STOP_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 }; |
| static const u16 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0c, 0x0d, 0x17, 0x66 }; |
| |
| static const u16 W83627EHF_REG_FAN_MAX_OUTPUT_COMMON[] |
| = { 0xff, 0x67, 0xff, 0x69 }; |
| static const u16 W83627EHF_REG_FAN_STEP_OUTPUT_COMMON[] |
| = { 0xff, 0x68, 0xff, 0x6a }; |
| |
| static const u16 W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B[] = { 0x67, 0x69, 0x6b }; |
| static const u16 W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B[] |
| = { 0x68, 0x6a, 0x6c }; |
| |
| static const u16 W83627EHF_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 }; |
| |
| static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301 }; |
| static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302 }; |
| static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = { 0x105, 0x205, 0x305 }; |
| static const u16 NCT6775_REG_FAN_START_OUTPUT[] = { 0x106, 0x206, 0x306 }; |
| static const u16 NCT6775_REG_FAN_STOP_TIME[] = { 0x107, 0x207, 0x307 }; |
| static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309 }; |
| 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[] = { 0x630, 0x632, 0x634, 0x636, 0x638 }; |
| static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642}; |
| |
| static const u16 NCT6775_REG_TEMP[] |
| = { 0x27, 0x150, 0x250, 0x73, 0x75, 0x77, 0x62b, 0x62c, 0x62d }; |
| static const u16 NCT6775_REG_TEMP_CONFIG[] |
| = { 0, 0x152, 0x252, 0, 0, 0, 0x628, 0x629, 0x62A }; |
| static const u16 NCT6775_REG_TEMP_HYST[] |
| = { 0x3a, 0x153, 0x253, 0, 0, 0, 0x673, 0x678, 0x67D }; |
| static const u16 NCT6775_REG_TEMP_OVER[] |
| = { 0x39, 0x155, 0x255, 0, 0, 0, 0x672, 0x677, 0x67C }; |
| static const u16 NCT6775_REG_TEMP_SOURCE[] |
| = { 0x621, 0x622, 0x623, 0x100, 0x200, 0x300, 0x624, 0x625, 0x626 }; |
| |
| static const char *const w83667hg_b_temp_label[] = { |
| "SYSTIN", |
| "CPUTIN", |
| "AUXTIN", |
| "AMDTSI", |
| "PECI Agent 1", |
| "PECI Agent 2", |
| "PECI Agent 3", |
| "PECI Agent 4" |
| }; |
| |
| 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 char *const nct6776_temp_label[] = { |
| "", |
| "SYSTIN", |
| "CPUTIN", |
| "AUXTIN", |
| "SMBUSMASTER 0", |
| "SMBUSMASTER 1", |
| "SMBUSMASTER 2", |
| "SMBUSMASTER 3", |
| "SMBUSMASTER 4", |
| "SMBUSMASTER 5", |
| "SMBUSMASTER 6", |
| "SMBUSMASTER 7", |
| "PECI Agent 0", |
| "PECI Agent 1", |
| "PCH_CHIP_CPU_MAX_TEMP", |
| "PCH_CHIP_TEMP", |
| "PCH_CPU_TEMP", |
| "PCH_MCH_TEMP", |
| "PCH_DIM0_TEMP", |
| "PCH_DIM1_TEMP", |
| "PCH_DIM2_TEMP", |
| "PCH_DIM3_TEMP", |
| "BYTE_TEMP" |
| }; |
| |
| #define NUM_REG_TEMP ARRAY_SIZE(NCT6775_REG_TEMP) |
| |
| static int is_word_sized(u16 reg) |
| { |
| return ((((reg & 0xff00) == 0x100 |
| || (reg & 0xff00) == 0x200) |
| && ((reg & 0x00ff) == 0x50 |
| || (reg & 0x00ff) == 0x53 |
| || (reg & 0x00ff) == 0x55)) |
| || (reg & 0xfff0) == 0x630 |
| || reg == 0x640 || reg == 0x642 |
| || ((reg & 0xfff0) == 0x650 |
| && (reg & 0x000f) >= 0x06) |
| || reg == 0x73 || reg == 0x75 || reg == 0x77 |
| ); |
| } |
| |
| /* |
| * Conversions |
| */ |
| |
| /* 1 is PWM mode, output in ms */ |
| static inline unsigned int step_time_from_reg(u8 reg, u8 mode) |
| { |
| return mode ? 100 * reg : 400 * reg; |
| } |
| |
| static inline u8 step_time_to_reg(unsigned int msec, u8 mode) |
| { |
| return clamp_val((mode ? (msec + 50) / 100 : (msec + 200) / 400), |
| 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 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_common[10] = { |
| 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800 |
| }; |
| static const u16 scale_in_w83627uhg[9] = { |
| 800, 800, 3328, 3424, 800, 800, 0, 3328, 3400 |
| }; |
| |
| static inline long in_from_reg(u8 reg, u8 nr, const u16 *scale_in) |
| { |
| return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100); |
| } |
| |
| static inline u8 in_to_reg(u32 val, u8 nr, const u16 *scale_in) |
| { |
| return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255); |
| } |
| |
| /* |
| * Data structures and manipulation thereof |
| */ |
| |
| struct w83627ehf_data { |
| int addr; /* IO base of hw monitor block */ |
| const char *name; |
| |
| struct device *hwmon_dev; |
| struct mutex lock; |
| |
| u16 reg_temp[NUM_REG_TEMP]; |
| u16 reg_temp_over[NUM_REG_TEMP]; |
| u16 reg_temp_hyst[NUM_REG_TEMP]; |
| u16 reg_temp_config[NUM_REG_TEMP]; |
| u8 temp_src[NUM_REG_TEMP]; |
| const char * const *temp_label; |
| |
| const u16 *REG_PWM; |
| const u16 *REG_TARGET; |
| const u16 *REG_FAN; |
| const u16 *REG_FAN_MIN; |
| const u16 *REG_FAN_START_OUTPUT; |
| const u16 *REG_FAN_STOP_OUTPUT; |
| const u16 *REG_FAN_STOP_TIME; |
| const u16 *REG_FAN_MAX_OUTPUT; |
| const u16 *REG_FAN_STEP_OUTPUT; |
| const u16 *scale_in; |
| |
| 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; |
| char valid; /* !=0 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[10]; /* Register value */ |
| u8 in_max[10]; /* Register value */ |
| u8 in_min[10]; /* Register value */ |
| unsigned int rpm[5]; |
| u16 fan_min[5]; |
| u8 fan_div[5]; |
| 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 temp_type[3]; |
| s8 temp_offset[3]; |
| s16 temp[9]; |
| s16 temp_max[9]; |
| s16 temp_max_hyst[9]; |
| u32 alarms; |
| u8 caseopen; |
| |
| u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */ |
| u8 pwm_enable[4]; /* 1->manual |
| * 2->thermal cruise mode (also called SmartFan I) |
| * 3->fan speed cruise mode |
| * 4->variable thermal cruise (also called |
| * SmartFan III) |
| * 5->enhanced variable thermal cruise (also called |
| * SmartFan IV) |
| */ |
| u8 pwm_enable_orig[4]; /* original value of pwm_enable */ |
| u8 pwm_num; /* number of pwm */ |
| u8 pwm[4]; |
| u8 target_temp[4]; |
| u8 tolerance[4]; |
| |
| u8 fan_start_output[4]; /* minimum fan speed when spinning up */ |
| u8 fan_stop_output[4]; /* minimum fan speed when spinning down */ |
| u8 fan_stop_time[4]; /* time at minimum before disabling fan */ |
| u8 fan_max_output[4]; /* maximum fan speed */ |
| u8 fan_step_output[4]; /* rate of change output value */ |
| |
| u8 vid; |
| u8 vrm; |
| |
| u16 have_temp; |
| u16 have_temp_offset; |
| u8 in6_skip:1; |
| u8 temp3_val_only:1; |
| |
| #ifdef CONFIG_PM |
| /* Remember extra register values over suspend/resume */ |
| u8 vbat; |
| u8 fandiv1; |
| u8 fandiv2; |
| #endif |
| }; |
| |
| struct w83627ehf_sio_data { |
| int sioreg; |
| enum kinds kind; |
| }; |
| |
| /* |
| * 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 w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg) |
| { |
| u8 bank = reg >> 8; |
| if (data->bank != bank) { |
| outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET); |
| outb_p(bank, data->addr + DATA_REG_OFFSET); |
| data->bank = bank; |
| } |
| } |
| |
| static u16 w83627ehf_read_value(struct w83627ehf_data *data, u16 reg) |
| { |
| int res, word_sized = is_word_sized(reg); |
| |
| mutex_lock(&data->lock); |
| |
| w83627ehf_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); |
| } |
| |
| mutex_unlock(&data->lock); |
| return res; |
| } |
| |
| static int w83627ehf_write_value(struct w83627ehf_data *data, u16 reg, |
| u16 value) |
| { |
| int word_sized = is_word_sized(reg); |
| |
| mutex_lock(&data->lock); |
| |
| w83627ehf_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); |
| |
| mutex_unlock(&data->lock); |
| return 0; |
| } |
| |
| /* We left-align 8-bit temperature values to make the code simpler */ |
| static u16 w83627ehf_read_temp(struct w83627ehf_data *data, u16 reg) |
| { |
| u16 res; |
| |
| res = w83627ehf_read_value(data, reg); |
| if (!is_word_sized(reg)) |
| res <<= 8; |
| |
| return res; |
| } |
| |
| static int w83627ehf_write_temp(struct w83627ehf_data *data, u16 reg, |
| u16 value) |
| { |
| if (!is_word_sized(reg)) |
| value >>= 8; |
| return w83627ehf_write_value(data, reg, value); |
| } |
| |
| /* This function assumes that the caller holds data->update_lock */ |
| static void nct6775_write_fan_div(struct w83627ehf_data *data, int nr) |
| { |
| u8 reg; |
| |
| switch (nr) { |
| case 0: |
| reg = (w83627ehf_read_value(data, NCT6775_REG_FANDIV1) & 0x70) |
| | (data->fan_div[0] & 0x7); |
| w83627ehf_write_value(data, NCT6775_REG_FANDIV1, reg); |
| break; |
| case 1: |
| reg = (w83627ehf_read_value(data, NCT6775_REG_FANDIV1) & 0x7) |
| | ((data->fan_div[1] << 4) & 0x70); |
| w83627ehf_write_value(data, NCT6775_REG_FANDIV1, reg); |
| break; |
| case 2: |
| reg = (w83627ehf_read_value(data, NCT6775_REG_FANDIV2) & 0x70) |
| | (data->fan_div[2] & 0x7); |
| w83627ehf_write_value(data, NCT6775_REG_FANDIV2, reg); |
| break; |
| case 3: |
| reg = (w83627ehf_read_value(data, NCT6775_REG_FANDIV2) & 0x7) |
| | ((data->fan_div[3] << 4) & 0x70); |
| w83627ehf_write_value(data, NCT6775_REG_FANDIV2, reg); |
| break; |
| } |
| } |
| |
| /* This function assumes that the caller holds data->update_lock */ |
| static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr) |
| { |
| u8 reg; |
| |
| switch (nr) { |
| case 0: |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0xcf) |
| | ((data->fan_div[0] & 0x03) << 4); |
| /* fan5 input control bit is write only, compute the value */ |
| reg |= (data->has_fan & (1 << 4)) ? 1 : 0; |
| w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg); |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xdf) |
| | ((data->fan_div[0] & 0x04) << 3); |
| w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg); |
| break; |
| case 1: |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0x3f) |
| | ((data->fan_div[1] & 0x03) << 6); |
| /* fan5 input control bit is write only, compute the value */ |
| reg |= (data->has_fan & (1 << 4)) ? 1 : 0; |
| w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg); |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xbf) |
| | ((data->fan_div[1] & 0x04) << 4); |
| w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg); |
| break; |
| case 2: |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV2) & 0x3f) |
| | ((data->fan_div[2] & 0x03) << 6); |
| w83627ehf_write_value(data, W83627EHF_REG_FANDIV2, reg); |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0x7f) |
| | ((data->fan_div[2] & 0x04) << 5); |
| w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg); |
| break; |
| case 3: |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0xfc) |
| | (data->fan_div[3] & 0x03); |
| w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg); |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT) & 0x7f) |
| | ((data->fan_div[3] & 0x04) << 5); |
| w83627ehf_write_value(data, W83627EHF_REG_SMI_OVT, reg); |
| break; |
| case 4: |
| reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0x73) |
| | ((data->fan_div[4] & 0x03) << 2) |
| | ((data->fan_div[4] & 0x04) << 5); |
| w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg); |
| break; |
| } |
| } |
| |
| static void w83627ehf_write_fan_div_common(struct device *dev, |
| struct w83627ehf_data *data, int nr) |
| { |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| |
| if (sio_data->kind == nct6776) |
| ; /* no dividers, do nothing */ |
| else if (sio_data->kind == nct6775) |
| nct6775_write_fan_div(data, nr); |
| else |
| w83627ehf_write_fan_div(data, nr); |
| } |
| |
| static void nct6775_update_fan_div(struct w83627ehf_data *data) |
| { |
| u8 i; |
| |
| i = w83627ehf_read_value(data, NCT6775_REG_FANDIV1); |
| data->fan_div[0] = i & 0x7; |
| data->fan_div[1] = (i & 0x70) >> 4; |
| i = w83627ehf_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 w83627ehf_update_fan_div(struct w83627ehf_data *data) |
| { |
| int i; |
| |
| i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1); |
| data->fan_div[0] = (i >> 4) & 0x03; |
| data->fan_div[1] = (i >> 6) & 0x03; |
| i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2); |
| data->fan_div[2] = (i >> 6) & 0x03; |
| i = w83627ehf_read_value(data, W83627EHF_REG_VBAT); |
| data->fan_div[0] |= (i >> 3) & 0x04; |
| data->fan_div[1] |= (i >> 4) & 0x04; |
| data->fan_div[2] |= (i >> 5) & 0x04; |
| if (data->has_fan & ((1 << 3) | (1 << 4))) { |
| i = w83627ehf_read_value(data, W83627EHF_REG_DIODE); |
| data->fan_div[3] = i & 0x03; |
| data->fan_div[4] = ((i >> 2) & 0x03) |
| | ((i >> 5) & 0x04); |
| } |
| if (data->has_fan & (1 << 3)) { |
| i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT); |
| data->fan_div[3] |= (i >> 5) & 0x04; |
| } |
| } |
| |
| static void w83627ehf_update_fan_div_common(struct device *dev, |
| struct w83627ehf_data *data) |
| { |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| |
| if (sio_data->kind == nct6776) |
| ; /* no dividers, do nothing */ |
| else if (sio_data->kind == nct6775) |
| nct6775_update_fan_div(data); |
| else |
| w83627ehf_update_fan_div(data); |
| } |
| |
| static void nct6775_update_pwm(struct w83627ehf_data *data) |
| { |
| int i; |
| int pwmcfg, fanmodecfg; |
| |
| for (i = 0; i < data->pwm_num; i++) { |
| pwmcfg = w83627ehf_read_value(data, |
| W83627EHF_REG_PWM_ENABLE[i]); |
| fanmodecfg = w83627ehf_read_value(data, |
| NCT6775_REG_FAN_MODE[i]); |
| data->pwm_mode[i] = |
| ((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1) ? 0 : 1; |
| data->pwm_enable[i] = ((fanmodecfg >> 4) & 7) + 1; |
| data->tolerance[i] = fanmodecfg & 0x0f; |
| data->pwm[i] = w83627ehf_read_value(data, data->REG_PWM[i]); |
| } |
| } |
| |
| static void w83627ehf_update_pwm(struct w83627ehf_data *data) |
| { |
| int i; |
| int pwmcfg = 0, tolerance = 0; /* shut up the compiler */ |
| |
| for (i = 0; i < data->pwm_num; i++) { |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| |
| /* pwmcfg, tolerance mapped for i=0, i=1 to same reg */ |
| if (i != 1) { |
| pwmcfg = w83627ehf_read_value(data, |
| W83627EHF_REG_PWM_ENABLE[i]); |
| tolerance = w83627ehf_read_value(data, |
| W83627EHF_REG_TOLERANCE[i]); |
| } |
| data->pwm_mode[i] = |
| ((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1) ? 0 : 1; |
| data->pwm_enable[i] = ((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i]) |
| & 3) + 1; |
| data->pwm[i] = w83627ehf_read_value(data, data->REG_PWM[i]); |
| |
| data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0)) & 0x0f; |
| } |
| } |
| |
| static void w83627ehf_update_pwm_common(struct device *dev, |
| struct w83627ehf_data *data) |
| { |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| |
| if (sio_data->kind == nct6775 || sio_data->kind == nct6776) |
| nct6775_update_pwm(data); |
| else |
| w83627ehf_update_pwm(data); |
| } |
| |
| static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| |
| int i; |
| |
| mutex_lock(&data->update_lock); |
| |
| if (time_after(jiffies, data->last_updated + HZ + HZ/2) |
| || !data->valid) { |
| /* Fan clock dividers */ |
| w83627ehf_update_fan_div_common(dev, data); |
| |
| /* Measured voltages and limits */ |
| for (i = 0; i < data->in_num; i++) { |
| if ((i == 6) && data->in6_skip) |
| continue; |
| |
| data->in[i] = w83627ehf_read_value(data, |
| W83627EHF_REG_IN(i)); |
| data->in_min[i] = w83627ehf_read_value(data, |
| W83627EHF_REG_IN_MIN(i)); |
| data->in_max[i] = w83627ehf_read_value(data, |
| W83627EHF_REG_IN_MAX(i)); |
| } |
| |
| /* Measured fan speeds and limits */ |
| for (i = 0; i < 5; i++) { |
| u16 reg; |
| |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| |
| reg = w83627ehf_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] = w83627ehf_read_value(data, |
| data->REG_FAN_MIN[i]); |
| |
| /* |
| * If we failed to measure the fan speed and clock |
| * divider can be increased, let's try that for next |
| * time |
| */ |
| if (data->has_fan_div |
| && (reg >= 0xff || (sio_data->kind == nct6775 |
| && reg == 0x00)) |
| && data->fan_div[i] < 0x07) { |
| dev_dbg(dev, "Increasing fan%d " |
| "clock divider from %u to %u\n", |
| i + 1, div_from_reg(data->fan_div[i]), |
| div_from_reg(data->fan_div[i] + 1)); |
| data->fan_div[i]++; |
| w83627ehf_write_fan_div_common(dev, data, i); |
| /* Preserve min limit if possible */ |
| if ((data->has_fan_min & (1 << i)) |
| && data->fan_min[i] >= 2 |
| && data->fan_min[i] != 255) |
| w83627ehf_write_value(data, |
| data->REG_FAN_MIN[i], |
| (data->fan_min[i] /= 2)); |
| } |
| } |
| |
| w83627ehf_update_pwm_common(dev, data); |
| |
| for (i = 0; i < data->pwm_num; i++) { |
| if (!(data->has_fan & (1 << i))) |
| continue; |
| |
| data->fan_start_output[i] = |
| w83627ehf_read_value(data, |
| data->REG_FAN_START_OUTPUT[i]); |
| data->fan_stop_output[i] = |
| w83627ehf_read_value(data, |
| data->REG_FAN_STOP_OUTPUT[i]); |
| data->fan_stop_time[i] = |
| w83627ehf_read_value(data, |
| data->REG_FAN_STOP_TIME[i]); |
| |
| if (data->REG_FAN_MAX_OUTPUT && |
| data->REG_FAN_MAX_OUTPUT[i] != 0xff) |
| data->fan_max_output[i] = |
| w83627ehf_read_value(data, |
| data->REG_FAN_MAX_OUTPUT[i]); |
| |
| if (data->REG_FAN_STEP_OUTPUT && |
| data->REG_FAN_STEP_OUTPUT[i] != 0xff) |
| data->fan_step_output[i] = |
| w83627ehf_read_value(data, |
| data->REG_FAN_STEP_OUTPUT[i]); |
| |
| data->target_temp[i] = |
| w83627ehf_read_value(data, |
| data->REG_TARGET[i]) & |
| (data->pwm_mode[i] == 1 ? 0x7f : 0xff); |
| } |
| |
| /* Measured temperatures and limits */ |
| for (i = 0; i < NUM_REG_TEMP; i++) { |
| if (!(data->have_temp & (1 << i))) |
| continue; |
| data->temp[i] = w83627ehf_read_temp(data, |
| data->reg_temp[i]); |
| if (data->reg_temp_over[i]) |
| data->temp_max[i] |
| = w83627ehf_read_temp(data, |
| data->reg_temp_over[i]); |
| if (data->reg_temp_hyst[i]) |
| data->temp_max_hyst[i] |
| = w83627ehf_read_temp(data, |
| data->reg_temp_hyst[i]); |
| if (i > 2) |
| continue; |
| if (data->have_temp_offset & (1 << i)) |
| data->temp_offset[i] |
| = w83627ehf_read_value(data, |
| W83627EHF_REG_TEMP_OFFSET[i]); |
| } |
| |
| data->alarms = w83627ehf_read_value(data, |
| W83627EHF_REG_ALARM1) | |
| (w83627ehf_read_value(data, |
| W83627EHF_REG_ALARM2) << 8) | |
| (w83627ehf_read_value(data, |
| W83627EHF_REG_ALARM3) << 16); |
| |
| data->caseopen = w83627ehf_read_value(data, |
| W83627EHF_REG_CASEOPEN_DET); |
| |
| data->last_updated = jiffies; |
| data->valid = 1; |
| } |
| |
| mutex_unlock(&data->update_lock); |
| return data; |
| } |
| |
| /* |
| * Sysfs callback functions |
| */ |
| #define show_in_reg(reg) \ |
| static ssize_t \ |
| show_##reg(struct device *dev, struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr, \ |
| data->scale_in)); \ |
| } |
| show_in_reg(in) |
| show_in_reg(in_min) |
| show_in_reg(in_max) |
| |
| #define store_in_reg(REG, reg) \ |
| static ssize_t \ |
| store_in_##reg(struct device *dev, struct device_attribute *attr, \ |
| const char *buf, size_t count) \ |
| { \ |
| struct w83627ehf_data *data = dev_get_drvdata(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| unsigned long val; \ |
| int err; \ |
| err = kstrtoul(buf, 10, &val); \ |
| if (err < 0) \ |
| return err; \ |
| mutex_lock(&data->update_lock); \ |
| data->in_##reg[nr] = in_to_reg(val, nr, data->scale_in); \ |
| w83627ehf_write_value(data, W83627EHF_REG_IN_##REG(nr), \ |
| data->in_##reg[nr]); \ |
| mutex_unlock(&data->update_lock); \ |
| return count; \ |
| } |
| |
| store_in_reg(MIN, min) |
| store_in_reg(MAX, max) |
| |
| static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01); |
| } |
| |
| static struct sensor_device_attribute sda_in_input[] = { |
| SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0), |
| SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1), |
| SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2), |
| SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3), |
| SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4), |
| SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5), |
| SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6), |
| SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7), |
| SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8), |
| SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9), |
| }; |
| |
| static struct sensor_device_attribute sda_in_alarm[] = { |
| SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0), |
| SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1), |
| SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2), |
| SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3), |
| SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8), |
| SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21), |
| SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20), |
| SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16), |
| SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17), |
| SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19), |
| }; |
| |
| static struct sensor_device_attribute sda_in_min[] = { |
| SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0), |
| SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1), |
| SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2), |
| SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3), |
| SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4), |
| SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5), |
| SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6), |
| SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7), |
| SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8), |
| SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9), |
| }; |
| |
| static struct sensor_device_attribute sda_in_max[] = { |
| SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0), |
| SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1), |
| SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2), |
| SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3), |
| SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4), |
| SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5), |
| SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6), |
| SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7), |
| SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8), |
| SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9), |
| }; |
| |
| static ssize_t |
| show_fan(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->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 w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->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 w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->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 w83627ehf_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| unsigned long val; |
| int err; |
| unsigned int reg; |
| u8 new_div; |
| |
| err = kstrtoul(buf, 10, &val); |
| if (err < 0) |
| return err; |
| |
| mutex_lock(&data->update_lock); |
| if (!data->has_fan_div) { |
| /* |
| * Only NCT6776F for now, so we know that 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 done; /* 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); |
| } else if ((reg = 1350000U / val) >= 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 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; |
| w83627ehf_write_fan_div_common(dev, data, nr); |
| /* Give the chip time to sample a new speed value */ |
| data->last_updated = jiffies; |
| } |
| done: |
| w83627ehf_write_value(data, data->REG_FAN_MIN[nr], |
| data->fan_min[nr]); |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| static struct sensor_device_attribute sda_fan_input[] = { |
| SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), |
| SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), |
| SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), |
| SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), |
| SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), |
| }; |
| |
| static struct sensor_device_attribute sda_fan_alarm[] = { |
| SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6), |
| SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7), |
| SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11), |
| SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10), |
| SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23), |
| }; |
| |
| static struct sensor_device_attribute sda_fan_min[] = { |
| SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, |
| store_fan_min, 0), |
| SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, |
| store_fan_min, 1), |
| SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, |
| store_fan_min, 2), |
| SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, |
| store_fan_min, 3), |
| SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, |
| store_fan_min, 4), |
| }; |
| |
| static struct sensor_device_attribute sda_fan_div[] = { |
| SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), |
| SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), |
| SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), |
| SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3), |
| SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), |
| }; |
| |
| static ssize_t |
| show_temp_label(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]); |
| } |
| |
| #define show_temp_reg(addr, reg) \ |
| static ssize_t \ |
| show_##reg(struct device *dev, struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->reg[nr])); \ |
| } |
| show_temp_reg(reg_temp, temp); |
| show_temp_reg(reg_temp_over, temp_max); |
| show_temp_reg(reg_temp_hyst, temp_max_hyst); |
| |
| #define store_temp_reg(addr, reg) \ |
| static ssize_t \ |
| store_##reg(struct device *dev, struct device_attribute *attr, \ |
| const char *buf, size_t count) \ |
| { \ |
| struct w83627ehf_data *data = dev_get_drvdata(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| int err; \ |
| long val; \ |
| err = kstrtol(buf, 10, &val); \ |
| if (err < 0) \ |
| return err; \ |
| mutex_lock(&data->update_lock); \ |
| data->reg[nr] = LM75_TEMP_TO_REG(val); \ |
| w83627ehf_write_temp(data, data->addr[nr], data->reg[nr]); \ |
| mutex_unlock(&data->update_lock); \ |
| return count; \ |
| } |
| store_temp_reg(reg_temp_over, temp_max); |
| store_temp_reg(reg_temp_hyst, temp_max_hyst); |
| |
| static ssize_t |
| show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| |
| return sprintf(buf, "%d\n", |
| data->temp_offset[sensor_attr->index] * 1000); |
| } |
| |
| static ssize_t |
| store_temp_offset(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->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; |
| w83627ehf_write_value(data, W83627EHF_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 w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| return sprintf(buf, "%d\n", (int)data->temp_type[nr]); |
| } |
| |
| static struct sensor_device_attribute sda_temp_input[] = { |
| SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0), |
| SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1), |
| SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2), |
| SENSOR_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3), |
| SENSOR_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4), |
| SENSOR_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5), |
| SENSOR_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6), |
| SENSOR_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7), |
| SENSOR_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8), |
| }; |
| |
| static struct sensor_device_attribute sda_temp_label[] = { |
| SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0), |
| SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1), |
| SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2), |
| SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3), |
| SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4), |
| SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5), |
| SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6), |
| SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7), |
| SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8), |
| }; |
| |
| static struct sensor_device_attribute sda_temp_max[] = { |
| SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 0), |
| SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 1), |
| SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 2), |
| SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 3), |
| SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 4), |
| SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 5), |
| SENSOR_ATTR(temp7_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 6), |
| SENSOR_ATTR(temp8_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 7), |
| SENSOR_ATTR(temp9_max, S_IRUGO | S_IWUSR, show_temp_max, |
| store_temp_max, 8), |
| }; |
| |
| static struct sensor_device_attribute sda_temp_max_hyst[] = { |
| SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 0), |
| SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 1), |
| SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 2), |
| SENSOR_ATTR(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 3), |
| SENSOR_ATTR(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 4), |
| SENSOR_ATTR(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 5), |
| SENSOR_ATTR(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 6), |
| SENSOR_ATTR(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 7), |
| SENSOR_ATTR(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst, |
| store_temp_max_hyst, 8), |
| }; |
| |
| static struct sensor_device_attribute sda_temp_alarm[] = { |
| SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4), |
| SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5), |
| SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13), |
| }; |
| |
| static struct sensor_device_attribute sda_temp_type[] = { |
| SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0), |
| SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1), |
| SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2), |
| }; |
| |
| static struct sensor_device_attribute sda_temp_offset[] = { |
| SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| store_temp_offset, 0), |
| SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| store_temp_offset, 1), |
| SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset, |
| store_temp_offset, 2), |
| }; |
| |
| #define show_pwm_reg(reg) \ |
| static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| return sprintf(buf, "%d\n", data->reg[nr]); \ |
| } |
| |
| show_pwm_reg(pwm_mode) |
| show_pwm_reg(pwm_enable) |
| show_pwm_reg(pwm) |
| |
| static ssize_t |
| store_pwm_mode(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| int nr = sensor_attr->index; |
| unsigned long val; |
| int err; |
| u16 reg; |
| |
| err = kstrtoul(buf, 10, &val); |
| if (err < 0) |
| return err; |
| |
| if (val > 1) |
| return -EINVAL; |
| |
| /* On NCT67766F, DC mode is only supported for pwm1 */ |
| if (sio_data->kind == nct6776 && nr && val != 1) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]); |
| data->pwm_mode[nr] = val; |
| reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]); |
| if (!val) |
| reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr]; |
| w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t |
| store_pwm(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| unsigned long val; |
| int err; |
| |
| err = kstrtoul(buf, 10, &val); |
| if (err < 0) |
| return err; |
| |
| val = clamp_val(val, 0, 255); |
| |
| mutex_lock(&data->update_lock); |
| data->pwm[nr] = val; |
| w83627ehf_write_value(data, data->REG_PWM[nr], val); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t |
| store_pwm_enable(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| unsigned long val; |
| int err; |
| u16 reg; |
| |
| err = kstrtoul(buf, 10, &val); |
| if (err < 0) |
| return err; |
| |
| if (!val || (val > 4 && val != data->pwm_enable_orig[nr])) |
| return -EINVAL; |
| /* SmartFan III mode is not supported on NCT6776F */ |
| if (sio_data->kind == nct6776 && val == 4) |
| return -EINVAL; |
| |
| mutex_lock(&data->update_lock); |
| data->pwm_enable[nr] = val; |
| if (sio_data->kind == nct6775 || sio_data->kind == nct6776) { |
| reg = w83627ehf_read_value(data, |
| NCT6775_REG_FAN_MODE[nr]); |
| reg &= 0x0f; |
| reg |= (val - 1) << 4; |
| w83627ehf_write_value(data, |
| NCT6775_REG_FAN_MODE[nr], reg); |
| } else { |
| reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]); |
| reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]); |
| reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr]; |
| w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg); |
| } |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| |
| #define show_tol_temp(reg) \ |
| static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| return sprintf(buf, "%d\n", data->reg[nr] * 1000); \ |
| } |
| |
| show_tol_temp(tolerance) |
| show_tol_temp(target_temp) |
| |
| static ssize_t |
| store_target_temp(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| long val; |
| int err; |
| |
| err = kstrtol(buf, 10, &val); |
| if (err < 0) |
| return err; |
| |
| val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 127); |
| |
| mutex_lock(&data->update_lock); |
| data->target_temp[nr] = val; |
| w83627ehf_write_value(data, data->REG_TARGET[nr], val); |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static ssize_t |
| store_tolerance(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
| int nr = sensor_attr->index; |
| u16 reg; |
| long val; |
| int err; |
| |
| err = kstrtol(buf, 10, &val); |
| if (err < 0) |
| return err; |
| |
| /* Limit the temp to 0C - 15C */ |
| val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 15); |
| |
| mutex_lock(&data->update_lock); |
| if (sio_data->kind == nct6775 || sio_data->kind == nct6776) { |
| /* Limit tolerance further for NCT6776F */ |
| if (sio_data->kind == nct6776 && val > 7) |
| val = 7; |
| reg = w83627ehf_read_value(data, NCT6775_REG_FAN_MODE[nr]); |
| reg = (reg & 0xf0) | val; |
| w83627ehf_write_value(data, NCT6775_REG_FAN_MODE[nr], reg); |
| } else { |
| reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]); |
| if (nr == 1) |
| reg = (reg & 0x0f) | (val << 4); |
| else |
| reg = (reg & 0xf0) | val; |
| w83627ehf_write_value(data, W83627EHF_REG_TOLERANCE[nr], reg); |
| } |
| data->tolerance[nr] = val; |
| mutex_unlock(&data->update_lock); |
| return count; |
| } |
| |
| static struct sensor_device_attribute sda_pwm[] = { |
| SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0), |
| SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1), |
| SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2), |
| SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3), |
| }; |
| |
| static struct sensor_device_attribute sda_pwm_mode[] = { |
| SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode, |
| store_pwm_mode, 0), |
| SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode, |
| store_pwm_mode, 1), |
| SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode, |
| store_pwm_mode, 2), |
| SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode, |
| store_pwm_mode, 3), |
| }; |
| |
| static struct sensor_device_attribute sda_pwm_enable[] = { |
| SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, |
| store_pwm_enable, 0), |
| SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, |
| store_pwm_enable, 1), |
| SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, |
| store_pwm_enable, 2), |
| SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable, |
| store_pwm_enable, 3), |
| }; |
| |
| static struct sensor_device_attribute sda_target_temp[] = { |
| SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp, |
| store_target_temp, 0), |
| SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp, |
| store_target_temp, 1), |
| SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp, |
| store_target_temp, 2), |
| SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp, |
| store_target_temp, 3), |
| }; |
| |
| static struct sensor_device_attribute sda_tolerance[] = { |
| SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance, |
| store_tolerance, 0), |
| SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance, |
| store_tolerance, 1), |
| SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance, |
| store_tolerance, 2), |
| SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance, |
| store_tolerance, 3), |
| }; |
| |
| /* Smart Fan registers */ |
| |
| #define fan_functions(reg, REG) \ |
| static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| return sprintf(buf, "%d\n", data->reg[nr]); \ |
| } \ |
| static ssize_t \ |
| store_##reg(struct device *dev, struct device_attribute *attr, \ |
| const char *buf, size_t count) \ |
| { \ |
| struct w83627ehf_data *data = dev_get_drvdata(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| unsigned long val; \ |
| int err; \ |
| err = kstrtoul(buf, 10, &val); \ |
| if (err < 0) \ |
| return err; \ |
| val = clamp_val(val, 1, 255); \ |
| mutex_lock(&data->update_lock); \ |
| data->reg[nr] = val; \ |
| w83627ehf_write_value(data, data->REG_##REG[nr], val); \ |
| mutex_unlock(&data->update_lock); \ |
| return count; \ |
| } |
| |
| fan_functions(fan_start_output, FAN_START_OUTPUT) |
| fan_functions(fan_stop_output, FAN_STOP_OUTPUT) |
| fan_functions(fan_max_output, FAN_MAX_OUTPUT) |
| fan_functions(fan_step_output, FAN_STEP_OUTPUT) |
| |
| #define fan_time_functions(reg, REG) \ |
| static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->index; \ |
| return sprintf(buf, "%d\n", \ |
| step_time_from_reg(data->reg[nr], \ |
| data->pwm_mode[nr])); \ |
| } \ |
| \ |
| static ssize_t \ |
| store_##reg(struct device *dev, struct device_attribute *attr, \ |
| const char *buf, size_t count) \ |
| { \ |
| struct w83627ehf_data *data = dev_get_drvdata(dev); \ |
| struct sensor_device_attribute *sensor_attr = \ |
| to_sensor_dev_attr(attr); \ |
| int nr = sensor_attr->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->reg[nr] = val; \ |
| w83627ehf_write_value(data, data->REG_##REG[nr], val); \ |
| mutex_unlock(&data->update_lock); \ |
| return count; \ |
| } \ |
| |
| fan_time_functions(fan_stop_time, FAN_STOP_TIME) |
| |
| static ssize_t show_name(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| |
| return sprintf(buf, "%s\n", data->name); |
| } |
| static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
| |
| static struct sensor_device_attribute sda_sf3_arrays_fan4[] = { |
| SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, |
| store_fan_stop_time, 3), |
| SENSOR_ATTR(pwm4_start_output, S_IWUSR | S_IRUGO, show_fan_start_output, |
| store_fan_start_output, 3), |
| SENSOR_ATTR(pwm4_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output, |
| store_fan_stop_output, 3), |
| SENSOR_ATTR(pwm4_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, |
| store_fan_max_output, 3), |
| SENSOR_ATTR(pwm4_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, |
| store_fan_step_output, 3), |
| }; |
| |
| static struct sensor_device_attribute sda_sf3_arrays_fan3[] = { |
| SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, |
| store_fan_stop_time, 2), |
| SENSOR_ATTR(pwm3_start_output, S_IWUSR | S_IRUGO, show_fan_start_output, |
| store_fan_start_output, 2), |
| SENSOR_ATTR(pwm3_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output, |
| store_fan_stop_output, 2), |
| }; |
| |
| static struct sensor_device_attribute sda_sf3_arrays[] = { |
| SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, |
| store_fan_stop_time, 0), |
| SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time, |
| store_fan_stop_time, 1), |
| SENSOR_ATTR(pwm1_start_output, S_IWUSR | S_IRUGO, show_fan_start_output, |
| store_fan_start_output, 0), |
| SENSOR_ATTR(pwm2_start_output, S_IWUSR | S_IRUGO, show_fan_start_output, |
| store_fan_start_output, 1), |
| SENSOR_ATTR(pwm1_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output, |
| store_fan_stop_output, 0), |
| SENSOR_ATTR(pwm2_stop_output, S_IWUSR | S_IRUGO, show_fan_stop_output, |
| store_fan_stop_output, 1), |
| }; |
| |
| |
| /* |
| * pwm1 and pwm3 don't support max and step settings on all chips. |
| * Need to check support while generating/removing attribute files. |
| */ |
| static struct sensor_device_attribute sda_sf3_max_step_arrays[] = { |
| SENSOR_ATTR(pwm1_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, |
| store_fan_max_output, 0), |
| SENSOR_ATTR(pwm1_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, |
| store_fan_step_output, 0), |
| SENSOR_ATTR(pwm2_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, |
| store_fan_max_output, 1), |
| SENSOR_ATTR(pwm2_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, |
| store_fan_step_output, 1), |
| SENSOR_ATTR(pwm3_max_output, S_IWUSR | S_IRUGO, show_fan_max_output, |
| store_fan_max_output, 2), |
| SENSOR_ATTR(pwm3_step_output, S_IWUSR | S_IRUGO, show_fan_step_output, |
| store_fan_step_output, 2), |
| }; |
| |
| static ssize_t |
| show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83627ehf_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 |
| show_caseopen(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); |
| |
| return sprintf(buf, "%d\n", |
| !!(data->caseopen & to_sensor_dev_attr_2(attr)->index)); |
| } |
| |
| static ssize_t |
| clear_caseopen(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| unsigned long val; |
| u16 reg, mask; |
| |
| if (kstrtoul(buf, 10, &val) || val != 0) |
| return -EINVAL; |
| |
| mask = to_sensor_dev_attr_2(attr)->nr; |
| |
| mutex_lock(&data->update_lock); |
| reg = w83627ehf_read_value(data, W83627EHF_REG_CASEOPEN_CLR); |
| w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg | mask); |
| w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg & ~mask); |
| data->valid = 0; /* Force cache refresh */ |
| mutex_unlock(&data->update_lock); |
| |
| return count; |
| } |
| |
| static struct sensor_device_attribute_2 sda_caseopen[] = { |
| SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen, |
| clear_caseopen, 0x80, 0x10), |
| SENSOR_ATTR_2(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen, |
| clear_caseopen, 0x40, 0x40), |
| }; |
| |
| /* |
| * Driver and device management |
| */ |
| |
| static void w83627ehf_device_remove_files(struct device *dev) |
| { |
| /* |
| * some entries in the following arrays may not have been used in |
| * device_create_file(), but device_remove_file() will ignore them |
| */ |
| int i; |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) |
| device_remove_file(dev, &sda_sf3_arrays[i].dev_attr); |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_max_step_arrays); i++) { |
| struct sensor_device_attribute *attr = |
| &sda_sf3_max_step_arrays[i]; |
| if (data->REG_FAN_STEP_OUTPUT && |
| data->REG_FAN_STEP_OUTPUT[attr->index] != 0xff) |
| device_remove_file(dev, &attr->dev_attr); |
| } |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan3); i++) |
| device_remove_file(dev, &sda_sf3_arrays_fan3[i].dev_attr); |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) |
| device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr); |
| for (i = 0; i < data->in_num; i++) { |
| if ((i == 6) && data->in6_skip) |
| continue; |
| device_remove_file(dev, &sda_in_input[i].dev_attr); |
| device_remove_file(dev, &sda_in_alarm[i].dev_attr); |
| device_remove_file(dev, &sda_in_min[i].dev_attr); |
| device_remove_file(dev, &sda_in_max[i].dev_attr); |
| } |
| for (i = 0; i < 5; i++) { |
| device_remove_file(dev, &sda_fan_input[i].dev_attr); |
| device_remove_file(dev, &sda_fan_alarm[i].dev_attr); |
| device_remove_file(dev, &sda_fan_div[i].dev_attr); |
| device_remove_file(dev, &sda_fan_min[i].dev_attr); |
| } |
| for (i = 0; i < data->pwm_num; i++) { |
| device_remove_file(dev, &sda_pwm[i].dev_attr); |
| device_remove_file(dev, &sda_pwm_mode[i].dev_attr); |
| device_remove_file(dev, &sda_pwm_enable[i].dev_attr); |
| device_remove_file(dev, &sda_target_temp[i].dev_attr); |
| device_remove_file(dev, &sda_tolerance[i].dev_attr); |
| } |
| for (i = 0; i < NUM_REG_TEMP; i++) { |
| if (!(data->have_temp & (1 << i))) |
| continue; |
| device_remove_file(dev, &sda_temp_input[i].dev_attr); |
| device_remove_file(dev, &sda_temp_label[i].dev_attr); |
| if (i == 2 && data->temp3_val_only) |
| continue; |
| device_remove_file(dev, &sda_temp_max[i].dev_attr); |
| device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr); |
| if (i > 2) |
| continue; |
| device_remove_file(dev, &sda_temp_alarm[i].dev_attr); |
| device_remove_file(dev, &sda_temp_type[i].dev_attr); |
| device_remove_file(dev, &sda_temp_offset[i].dev_attr); |
| } |
| |
| device_remove_file(dev, &sda_caseopen[0].dev_attr); |
| device_remove_file(dev, &sda_caseopen[1].dev_attr); |
| |
| device_remove_file(dev, &dev_attr_name); |
| device_remove_file(dev, &dev_attr_cpu0_vid); |
| } |
| |
| /* Get the monitoring functions started */ |
| static inline void w83627ehf_init_device(struct w83627ehf_data *data, |
| enum kinds kind) |
| { |
| int i; |
| u8 tmp, diode; |
| |
| /* Start monitoring is needed */ |
| tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG); |
| if (!(tmp & 0x01)) |
| w83627ehf_write_value(data, W83627EHF_REG_CONFIG, |
| tmp | 0x01); |
| |
| /* Enable temperature sensors if needed */ |
| for (i = 0; i < NUM_REG_TEMP; i++) { |
| if (!(data->have_temp & (1 << i))) |
| continue; |
| if (!data->reg_temp_config[i]) |
| continue; |
| tmp = w83627ehf_read_value(data, |
| data->reg_temp_config[i]); |
| if (tmp & 0x01) |
| w83627ehf_write_value(data, |
| data->reg_temp_config[i], |
| tmp & 0xfe); |
| } |
| |
| /* Enable VBAT monitoring if needed */ |
| tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT); |
| if (!(tmp & 0x01)) |
| w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01); |
| |
| /* Get thermal sensor types */ |
| switch (kind) { |
| case w83627ehf: |
| diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE); |
| break; |
| case w83627uhg: |
| diode = 0x00; |
| break; |
| default: |
| diode = 0x70; |
| } |
| for (i = 0; i < 3; i++) { |
| const char *label = NULL; |
| |
| if (data->temp_label) |
| label = data->temp_label[data->temp_src[i]]; |
| |
| /* Digital source overrides analog type */ |
| if (label && strncmp(label, "PECI", 4) == 0) |
| data->temp_type[i] = 6; |
| else if (label && strncmp(label, "AMD", 3) == 0) |
| data->temp_type[i] = 5; |
| else if ((tmp & (0x02 << i))) |
| data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 3; |
| else |
| data->temp_type[i] = 4; /* thermistor */ |
| } |
| } |
| |
| static void w82627ehf_swap_tempreg(struct w83627ehf_data *data, |
| int r1, int r2) |
| { |
| u16 tmp; |
| |
| tmp = data->temp_src[r1]; |
| data->temp_src[r1] = data->temp_src[r2]; |
| data->temp_src[r2] = tmp; |
| |
| tmp = data->reg_temp[r1]; |
| data->reg_temp[r1] = data->reg_temp[r2]; |
| data->reg_temp[r2] = tmp; |
| |
| tmp = data->reg_temp_over[r1]; |
| data->reg_temp_over[r1] = data->reg_temp_over[r2]; |
| data->reg_temp_over[r2] = tmp; |
| |
| tmp = data->reg_temp_hyst[r1]; |
| data->reg_temp_hyst[r1] = data->reg_temp_hyst[r2]; |
| data->reg_temp_hyst[r2] = tmp; |
| |
| tmp = data->reg_temp_config[r1]; |
| data->reg_temp_config[r1] = data->reg_temp_config[r2]; |
| data->reg_temp_config[r2] = tmp; |
| } |
| |
| static void |
| w83627ehf_set_temp_reg_ehf(struct w83627ehf_data *data, int n_temp) |
| { |
| int i; |
| |
| for (i = 0; i < n_temp; i++) { |
| data->reg_temp[i] = W83627EHF_REG_TEMP[i]; |
| data->reg_temp_over[i] = W83627EHF_REG_TEMP_OVER[i]; |
| data->reg_temp_hyst[i] = W83627EHF_REG_TEMP_HYST[i]; |
| data->reg_temp_config[i] = W83627EHF_REG_TEMP_CONFIG[i]; |
| } |
| } |
| |
| static void |
| w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data, |
| struct w83627ehf_data *data) |
| { |
| int fan3pin, fan4pin, fan4min, fan5pin, regval; |
| |
| /* The W83627UHG is simple, only two fan inputs, no config */ |
| if (sio_data->kind == w83627uhg) { |
| data->has_fan = 0x03; /* fan1 and fan2 */ |
| data->has_fan_min = 0x03; |
| return; |
| } |
| |
| superio_enter(sio_data->sioreg); |
| |
| /* fan4 and fan5 share some pins with the GPIO and serial flash */ |
| if (sio_data->kind == nct6775) { |
| /* On NCT6775, fan4 shares pins with the fdc interface */ |
| fan3pin = 1; |
| fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80); |
| fan4min = 0; |
| fan5pin = 0; |
| } else if (sio_data->kind == nct6776) { |
| bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80; |
| |
| superio_select(sio_data->sioreg, W83627EHF_LD_HWM); |
| regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE); |
| |
| if (regval & 0x80) |
| fan3pin = gpok; |
| else |
| fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40); |
| |
| if (regval & 0x40) |
| fan4pin = gpok; |
| else |
| fan4pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x01); |
| |
| if (regval & 0x20) |
| fan5pin = gpok; |
| else |
| fan5pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x02); |
| |
| fan4min = fan4pin; |
| } else if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) { |
| fan3pin = 1; |
| fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40; |
| fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20; |
| fan4min = fan4pin; |
| } else { |
| fan3pin = 1; |
| fan4pin = !(superio_inb(sio_data->sioreg, 0x29) & 0x06); |
| fan5pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x02); |
| fan4min = fan4pin; |
| } |
| |
| superio_exit(sio_data->sioreg); |
| |
| data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */ |
| data->has_fan |= (fan3pin << 2); |
| data->has_fan_min |= (fan3pin << 2); |
| |
| if (sio_data->kind == nct6775 || sio_data->kind == nct6776) { |
| /* |
| * NCT6775F and NCT6776F don't have the W83627EHF_REG_FANDIV1 |
| * register |
| */ |
| data->has_fan |= (fan4pin << 3) | (fan5pin << 4); |
| data->has_fan_min |= (fan4min << 3) | (fan5pin << 4); |
| } else { |
| /* |
| * It looks like fan4 and fan5 pins can be alternatively used |
| * as fan on/off switches, but fan5 control is write only :/ |
| * We assume that if the serial interface is disabled, designers |
| * connected fan5 as input unless they are emitting log 1, which |
| * is not the default. |
| */ |
| regval = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1); |
| if ((regval & (1 << 2)) && fan4pin) { |
| data->has_fan |= (1 << 3); |
| data->has_fan_min |= (1 << 3); |
| } |
| if (!(regval & (1 << 1)) && fan5pin) { |
| data->has_fan |= (1 << 4); |
| data->has_fan_min |= (1 << 4); |
| } |
| } |
| } |
| |
| static int w83627ehf_probe(struct platform_device *pdev) |
| { |
| struct device *dev = &pdev->dev; |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| struct w83627ehf_data *data; |
| struct resource *res; |
| u8 en_vrm10; |
| int i, err = 0; |
| |
| res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
| if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) { |
| err = -EBUSY; |
| dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", |
| (unsigned long)res->start, |
| (unsigned long)res->start + IOREGION_LENGTH - 1); |
| goto exit; |
| } |
| |
| data = devm_kzalloc(&pdev->dev, sizeof(struct w83627ehf_data), |
| GFP_KERNEL); |
| if (!data) { |
| err = -ENOMEM; |
| goto exit_release; |
| } |
| |
| data->addr = res->start; |
| mutex_init(&data->lock); |
| mutex_init(&data->update_lock); |
| data->name = w83627ehf_device_names[sio_data->kind]; |
| data->bank = 0xff; /* Force initial bank selection */ |
| platform_set_drvdata(pdev, data); |
| |
| /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */ |
| data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9; |
| /* 667HG, NCT6775F, and NCT6776F have 3 pwms, and 627UHG has only 2 */ |
| switch (sio_data->kind) { |
| default: |
| data->pwm_num = 4; |
| break; |
| case w83667hg: |
| case w83667hg_b: |
| case nct6775: |
| case nct6776: |
| data->pwm_num = 3; |
| break; |
| case w83627uhg: |
| data->pwm_num = 2; |
| break; |
| } |
| |
| /* Default to 3 temperature inputs, code below will adjust as needed */ |
| data->have_temp = 0x07; |
| |
| /* Deal with temperature register setup first. */ |
| if (sio_data->kind == nct6775 || sio_data->kind == nct6776) { |
| int mask = 0; |
| |
| /* |
| * Display temperature sensor output only if it monitors |
| * a source other than one already reported. Always display |
| * first three temperature registers, though. |
| */ |
| for (i = 0; i < NUM_REG_TEMP; i++) { |
| u8 src; |
| |
| data->reg_temp[i] = NCT6775_REG_TEMP[i]; |
| data->reg_temp_over[i] = NCT6775_REG_TEMP_OVER[i]; |
| data->reg_temp_hyst[i] = NCT6775_REG_TEMP_HYST[i]; |
| data->reg_temp_config[i] = NCT6775_REG_TEMP_CONFIG[i]; |
| |
| src = w83627ehf_read_value(data, |
| NCT6775_REG_TEMP_SOURCE[i]); |
| src &= 0x1f; |
| if (src && !(mask & (1 << src))) { |
| data->have_temp |= 1 << i; |
| mask |= 1 << src; |
| } |
| |
| data->temp_src[i] = src; |
| |
| /* |
| * Now do some register swapping if index 0..2 don't |
| * point to SYSTIN(1), CPUIN(2), and AUXIN(3). |
| * Idea is to have the first three attributes |
| * report SYSTIN, CPUIN, and AUXIN if possible |
| * without overriding the basic system configuration. |
| */ |
| if (i > 0 && data->temp_src[0] != 1 |
| && data->temp_src[i] == 1) |
| w82627ehf_swap_tempreg(data, 0, i); |
| if (i > 1 && data->temp_src[1] != 2 |
| && data->temp_src[i] == 2) |
| w82627ehf_swap_tempreg(data, 1, i); |
| if (i > 2 && data->temp_src[2] != 3 |
| && data->temp_src[i] == 3) |
| w82627ehf_swap_tempreg(data, 2, i); |
| } |
| if (sio_data->kind == nct6776) { |
| /* |
| * On NCT6776, AUXTIN and VIN3 pins are shared. |
| * Only way to detect it is to check if AUXTIN is used |
| * as a temperature source, and if that source is |
| * enabled. |
| * |
| * If that is the case, disable in6, which reports VIN3. |
| * Otherwise disable temp3. |
| */ |
| if (data->temp_src[2] == 3) { |
| u8 reg; |
| |
| if (data->reg_temp_config[2]) |
| reg = w83627ehf_read_value(data, |
| data->reg_temp_config[2]); |
| else |
| reg = 0; /* Assume AUXTIN is used */ |
| |
| if (reg & 0x01) |
| data->have_temp &= ~(1 << 2); |
| else |
| data->in6_skip = 1; |
| } |
| data->temp_label = nct6776_temp_label; |
| } else { |
| data->temp_label = nct6775_temp_label; |
| } |
| data->have_temp_offset = data->have_temp & 0x07; |
| for (i = 0; i < 3; i++) { |
| if (data->temp_src[i] > 3) |
| data->have_temp_offset &= ~(1 << i); |
| } |
| } else if (sio_data->kind == w83667hg_b) { |
| u8 reg; |
| |
| w83627ehf_set_temp_reg_ehf(data, 4); |
| |
| /* |
| * Temperature sources are selected with bank 0, registers 0x49 |
| * and 0x4a. |
| */ |
| reg = w83627ehf_read_value(data, 0x4a); |
| data->temp_src[0] = reg >> 5; |
| reg = w83627ehf_read_value(data, 0x49); |
| data->temp_src[1] = reg & 0x07; |
| data->temp_src[2] = (reg >> 4) & 0x07; |
| |
| /* |
| * W83667HG-B has another temperature register at 0x7e. |
| * The temperature source is selected with register 0x7d. |
| * Support it if the source differs from already reported |
| * sources. |
| */ |
| reg = w83627ehf_read_value(data, 0x7d); |
| reg &= 0x07; |
| if (reg != data->temp_src[0] && reg != data->temp_src[1] |
| && reg != data->temp_src[2]) { |
| data->temp_src[3] = reg; |
| data->have_temp |= 1 << 3; |
| } |
| |
| /* |
| * Chip supports either AUXTIN or VIN3. Try to find out which |
| * one. |
| */ |
| reg = w83627ehf_read_value(data, W83627EHF_REG_TEMP_CONFIG[2]); |
| if (data->temp_src[2] == 2 && (reg & 0x01)) |
| data->have_temp &= ~(1 << 2); |
| |
| if ((data->temp_src[2] == 2 && (data->have_temp & (1 << 2))) |
| || (data->temp_src[3] == 2 && (data->have_temp & (1 << 3)))) |
| data->in6_skip = 1; |
| |
| data->temp_label = w83667hg_b_temp_label; |
| data->have_temp_offset = data->have_temp & 0x07; |
| for (i = 0; i < 3; i++) { |
| if (data->temp_src[i] > 2) |
| data->have_temp_offset &= ~(1 << i); |
| } |
| } else if (sio_data->kind == w83627uhg) { |
| u8 reg; |
| |
| w83627ehf_set_temp_reg_ehf(data, 3); |
| |
| /* |
| * Temperature sources for temp2 and temp3 are selected with |
| * bank 0, registers 0x49 and 0x4a. |
| */ |
| data->temp_src[0] = 0; /* SYSTIN */ |
| reg = w83627ehf_read_value(data, 0x49) & 0x07; |
| /* Adjust to have the same mapping as other source registers */ |
| if (reg == 0) |
| data->temp_src[1] = 1; |
| else if (reg >= 2 && reg <= 5) |
| data->temp_src[1] = reg + 2; |
| else /* should never happen */ |
| data->have_temp &= ~(1 << 1); |
| reg = w83627ehf_read_value(data, 0x4a); |
| data->temp_src[2] = reg >> 5; |
| |
| /* |
| * Skip temp3 if source is invalid or the same as temp1 |
| * or temp2. |
| */ |
| if (data->temp_src[2] == 2 || data->temp_src[2] == 3 || |
| data->temp_src[2] == data->temp_src[0] || |
| ((data->have_temp & (1 << 1)) && |
| data->temp_src[2] == data->temp_src[1])) |
| data->have_temp &= ~(1 << 2); |
| else |
| data->temp3_val_only = 1; /* No limit regs */ |
| |
| data->in6_skip = 1; /* No VIN3 */ |
| |
| data->temp_label = w83667hg_b_temp_label; |
| data->have_temp_offset = data->have_temp & 0x03; |
| for (i = 0; i < 3; i++) { |
| if (data->temp_src[i] > 1) |
| data->have_temp_offset &= ~(1 << i); |
| } |
| } else { |
| w83627ehf_set_temp_reg_ehf(data, 3); |
| |
| /* Temperature sources are fixed */ |
| |
| if (sio_data->kind == w83667hg) { |
| u8 reg; |
| |
| /* |
| * Chip supports either AUXTIN or VIN3. Try to find |
| * out which one. |
| */ |
| reg = w83627ehf_read_value(data, |
| W83627EHF_REG_TEMP_CONFIG[2]); |
| if (reg & 0x01) |
| data->have_temp &= ~(1 << 2); |
| else |
| data->in6_skip = 1; |
| } |
| data->have_temp_offset = data->have_temp & 0x07; |
| } |
| |
| if (sio_data->kind == nct6775) { |
| data->has_fan_div = true; |
| data->fan_from_reg = fan_from_reg16; |
| data->fan_from_reg_min = fan_from_reg8; |
| data->REG_PWM = NCT6775_REG_PWM; |
| data->REG_TARGET = NCT6775_REG_TARGET; |
| data->REG_FAN = NCT6775_REG_FAN; |
| data->REG_FAN_MIN = W83627EHF_REG_FAN_MIN; |
| data->REG_FAN_START_OUTPUT = NCT6775_REG_FAN_START_OUTPUT; |
| data->REG_FAN_STOP_OUTPUT = NCT6775_REG_FAN_STOP_OUTPUT; |
| data->REG_FAN_STOP_TIME = NCT6775_REG_FAN_STOP_TIME; |
| data->REG_FAN_MAX_OUTPUT = NCT6775_REG_FAN_MAX_OUTPUT; |
| data->REG_FAN_STEP_OUTPUT = NCT6775_REG_FAN_STEP_OUTPUT; |
| } else if (sio_data->kind == nct6776) { |
| data->has_fan_div = false; |
| data->fan_from_reg = fan_from_reg13; |
| data->fan_from_reg_min = fan_from_reg13; |
| data->REG_PWM = NCT6775_REG_PWM; |
| data->REG_TARGET = NCT6775_REG_TARGET; |
| data->REG_FAN = NCT6775_REG_FAN; |
| data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; |
| data->REG_FAN_START_OUTPUT = NCT6775_REG_FAN_START_OUTPUT; |
| data->REG_FAN_STOP_OUTPUT = NCT6775_REG_FAN_STOP_OUTPUT; |
| data->REG_FAN_STOP_TIME = NCT6775_REG_FAN_STOP_TIME; |
| } else if (sio_data->kind == w83667hg_b) { |
| data->has_fan_div = true; |
| data->fan_from_reg = fan_from_reg8; |
| data->fan_from_reg_min = fan_from_reg8; |
| data->REG_PWM = W83627EHF_REG_PWM; |
| data->REG_TARGET = W83627EHF_REG_TARGET; |
| data->REG_FAN = W83627EHF_REG_FAN; |
| data->REG_FAN_MIN = W83627EHF_REG_FAN_MIN; |
| data->REG_FAN_START_OUTPUT = W83627EHF_REG_FAN_START_OUTPUT; |
| data->REG_FAN_STOP_OUTPUT = W83627EHF_REG_FAN_STOP_OUTPUT; |
| data->REG_FAN_STOP_TIME = W83627EHF_REG_FAN_STOP_TIME; |
| data->REG_FAN_MAX_OUTPUT = |
| W83627EHF_REG_FAN_MAX_OUTPUT_W83667_B; |
| data->REG_FAN_STEP_OUTPUT = |
| W83627EHF_REG_FAN_STEP_OUTPUT_W83667_B; |
| } else { |
| data->has_fan_div = true; |
| data->fan_from_reg = fan_from_reg8; |
| data->fan_from_reg_min = fan_from_reg8; |
| data->REG_PWM = W83627EHF_REG_PWM; |
| data->REG_TARGET = W83627EHF_REG_TARGET; |
| data->REG_FAN = W83627EHF_REG_FAN; |
| data->REG_FAN_MIN = W83627EHF_REG_FAN_MIN; |
| data->REG_FAN_START_OUTPUT = W83627EHF_REG_FAN_START_OUTPUT; |
| data->REG_FAN_STOP_OUTPUT = W83627EHF_REG_FAN_STOP_OUTPUT; |
| data->REG_FAN_STOP_TIME = W83627EHF_REG_FAN_STOP_TIME; |
| data->REG_FAN_MAX_OUTPUT = |
| W83627EHF_REG_FAN_MAX_OUTPUT_COMMON; |
| data->REG_FAN_STEP_OUTPUT = |
| W83627EHF_REG_FAN_STEP_OUTPUT_COMMON; |
| } |
| |
| /* Setup input voltage scaling factors */ |
| if (sio_data->kind == w83627uhg) |
| data->scale_in = scale_in_w83627uhg; |
| else |
| data->scale_in = scale_in_common; |
| |
| /* Initialize the chip */ |
| w83627ehf_init_device(data, sio_data->kind); |
| |
| data->vrm = vid_which_vrm(); |
| superio_enter(sio_data->sioreg); |
| /* Read VID value */ |
| if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b || |
| sio_data->kind == nct6775 || sio_data->kind == nct6776) { |
| /* |
| * W83667HG has different pins for VID input and output, so |
| * we can get the VID input values directly at logical device D |
| * 0xe3. |
| */ |
| superio_select(sio_data->sioreg, W83667HG_LD_VID); |
| data->vid = superio_inb(sio_data->sioreg, 0xe3); |
| err = device_create_file(dev, &dev_attr_cpu0_vid); |
| if (err) |
| goto exit_release; |
| } else if (sio_data->kind != w83627uhg) { |
| superio_select(sio_data->sioreg, W83627EHF_LD_HWM); |
| if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) { |
| /* |
| * Set VID input sensibility if needed. In theory the |
| * BIOS should have set it, but in practice it's not |
| * always the case. We only do it for the W83627EHF/EHG |
| * because the W83627DHG is more complex in this |
| * respect. |
| */ |
| if (sio_data->kind == w83627ehf) { |
| en_vrm10 = superio_inb(sio_data->sioreg, |
| SIO_REG_EN_VRM10); |
| if ((en_vrm10 & 0x08) && data->vrm == 90) { |
| dev_warn(dev, "Setting VID input " |
| "voltage to TTL\n"); |
| superio_outb(sio_data->sioreg, |
| SIO_REG_EN_VRM10, |
| en_vrm10 & ~0x08); |
| } else if (!(en_vrm10 & 0x08) |
| && data->vrm == 100) { |
| dev_warn(dev, "Setting VID input " |
| "voltage to VRM10\n"); |
| superio_outb(sio_data->sioreg, |
| SIO_REG_EN_VRM10, |
| en_vrm10 | 0x08); |
| } |
| } |
| |
| data->vid = superio_inb(sio_data->sioreg, |
| SIO_REG_VID_DATA); |
| if (sio_data->kind == w83627ehf) /* 6 VID pins only */ |
| data->vid &= 0x3f; |
| |
| err = device_create_file(dev, &dev_attr_cpu0_vid); |
| if (err) |
| goto exit_release; |
| } else { |
| dev_info(dev, "VID pins in output mode, CPU VID not " |
| "available\n"); |
| } |
| } |
| |
| if (fan_debounce && |
| (sio_data->kind == nct6775 || sio_data->kind == nct6776)) { |
| u8 tmp; |
| |
| superio_select(sio_data->sioreg, W83627EHF_LD_HWM); |
| tmp = superio_inb(sio_data->sioreg, NCT6775_REG_FAN_DEBOUNCE); |
| if (sio_data->kind == nct6776) |
| superio_outb(sio_data->sioreg, NCT6775_REG_FAN_DEBOUNCE, |
| 0x3e | tmp); |
| else |
| superio_outb(sio_data->sioreg, NCT6775_REG_FAN_DEBOUNCE, |
| 0x1e | tmp); |
| pr_info("Enabled fan debounce for chip %s\n", data->name); |
| } |
| |
| superio_exit(sio_data->sioreg); |
| |
| w83627ehf_check_fan_inputs(sio_data, data); |
| |
| /* Read fan clock dividers immediately */ |
| w83627ehf_update_fan_div_common(dev, data); |
| |
| /* Read pwm data to save original values */ |
| w83627ehf_update_pwm_common(dev, data); |
| for (i = 0; i < data->pwm_num; i++) |
| data->pwm_enable_orig[i] = data->pwm_enable[i]; |
| |
| /* Register sysfs hooks */ |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++) { |
| err = device_create_file(dev, &sda_sf3_arrays[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_max_step_arrays); i++) { |
| struct sensor_device_attribute *attr = |
| &sda_sf3_max_step_arrays[i]; |
| if (data->REG_FAN_STEP_OUTPUT && |
| data->REG_FAN_STEP_OUTPUT[attr->index] != 0xff) { |
| err = device_create_file(dev, &attr->dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| } |
| /* if fan3 and fan4 are enabled create the sf3 files for them */ |
| if ((data->has_fan & (1 << 2)) && data->pwm_num >= 3) |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan3); i++) { |
| err = device_create_file(dev, |
| &sda_sf3_arrays_fan3[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| if ((data->has_fan & (1 << 3)) && data->pwm_num >= 4) |
| for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) { |
| err = device_create_file(dev, |
| &sda_sf3_arrays_fan4[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| |
| for (i = 0; i < data->in_num; i++) { |
| if ((i == 6) && data->in6_skip) |
| continue; |
| if ((err = device_create_file(dev, &sda_in_input[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_in_alarm[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_in_min[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_in_max[i].dev_attr))) |
| goto exit_remove; |
| } |
| |
| for (i = 0; i < 5; i++) { |
| if (data->has_fan & (1 << i)) { |
| if ((err = device_create_file(dev, |
| &sda_fan_input[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_fan_alarm[i].dev_attr))) |
| goto exit_remove; |
| if (sio_data->kind != nct6776) { |
| err = device_create_file(dev, |
| &sda_fan_div[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| if (data->has_fan_min & (1 << i)) { |
| err = device_create_file(dev, |
| &sda_fan_min[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| if (i < data->pwm_num && |
| ((err = device_create_file(dev, |
| &sda_pwm[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_pwm_mode[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_pwm_enable[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_target_temp[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_tolerance[i].dev_attr)))) |
| goto exit_remove; |
| } |
| } |
| |
| for (i = 0; i < NUM_REG_TEMP; i++) { |
| if (!(data->have_temp & (1 << i))) |
| continue; |
| err = device_create_file(dev, &sda_temp_input[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| if (data->temp_label) { |
| err = device_create_file(dev, |
| &sda_temp_label[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| if (i == 2 && data->temp3_val_only) |
| continue; |
| if (data->reg_temp_over[i]) { |
| err = device_create_file(dev, |
| &sda_temp_max[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| if (data->reg_temp_hyst[i]) { |
| err = device_create_file(dev, |
| &sda_temp_max_hyst[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| if (i > 2) |
| continue; |
| if ((err = device_create_file(dev, |
| &sda_temp_alarm[i].dev_attr)) |
| || (err = device_create_file(dev, |
| &sda_temp_type[i].dev_attr))) |
| goto exit_remove; |
| if (data->have_temp_offset & (1 << i)) { |
| err = device_create_file(dev, |
| &sda_temp_offset[i].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| } |
| |
| err = device_create_file(dev, &sda_caseopen[0].dev_attr); |
| if (err) |
| goto exit_remove; |
| |
| if (sio_data->kind == nct6776) { |
| err = device_create_file(dev, &sda_caseopen[1].dev_attr); |
| if (err) |
| goto exit_remove; |
| } |
| |
| err = device_create_file(dev, &dev_attr_name); |
| if (err) |
| goto exit_remove; |
| |
| data->hwmon_dev = hwmon_device_register(dev); |
| if (IS_ERR(data->hwmon_dev)) { |
| err = PTR_ERR(data->hwmon_dev); |
| goto exit_remove; |
| } |
| |
| return 0; |
| |
| exit_remove: |
| w83627ehf_device_remove_files(dev); |
| exit_release: |
| platform_set_drvdata(pdev, NULL); |
| release_region(res->start, IOREGION_LENGTH); |
| exit: |
| return err; |
| } |
| |
| static int w83627ehf_remove(struct platform_device *pdev) |
| { |
| struct w83627ehf_data *data = platform_get_drvdata(pdev); |
| |
| hwmon_device_unregister(data->hwmon_dev); |
| w83627ehf_device_remove_files(&pdev->dev); |
| release_region(data->addr, IOREGION_LENGTH); |
| platform_set_drvdata(pdev, NULL); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int w83627ehf_suspend(struct device *dev) |
| { |
| struct w83627ehf_data *data = w83627ehf_update_device(dev); |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| |
| mutex_lock(&data->update_lock); |
| data->vbat = w83627ehf_read_value(data, W83627EHF_REG_VBAT); |
| if (sio_data->kind == nct6775) { |
| data->fandiv1 = w83627ehf_read_value(data, NCT6775_REG_FANDIV1); |
| data->fandiv2 = w83627ehf_read_value(data, NCT6775_REG_FANDIV2); |
| } |
| mutex_unlock(&data->update_lock); |
| |
| return 0; |
| } |
| |
| static int w83627ehf_resume(struct device *dev) |
| { |
| struct w83627ehf_data *data = dev_get_drvdata(dev); |
| struct w83627ehf_sio_data *sio_data = dev->platform_data; |
| int i; |
| |
| mutex_lock(&data->update_lock); |
| data->bank = 0xff; /* Force initial bank selection */ |
| |
| /* Restore limits */ |
| for (i = 0; i < data->in_num; i++) { |
| if ((i == 6) && data->in6_skip) |
| continue; |
| |
| w83627ehf_write_value(data, W83627EHF_REG_IN_MIN(i), |
| data->in_min[i]); |
| w83627ehf_write_value(data, W83627EHF_REG_IN_MAX(i), |
| data->in_max[i]); |
| } |
| |
| for (i = 0; i < 5; i++) { |
| if (!(data->has_fan_min & (1 << i))) |
| continue; |
| |
| w83627ehf_write_value(data, data->REG_FAN_MIN[i], |
| data->fan_min[i]); |
| } |
| |
| for (i = 0; i < NUM_REG_TEMP; i++) { |
| if (!(data->have_temp & (1 << i))) |
| continue; |
| |
| if (data->reg_temp_over[i]) |
| w83627ehf_write_temp(data, data->reg_temp_over[i], |
| data->temp_max[i]); |
| if (data->reg_temp_hyst[i]) |
| w83627ehf_write_temp(data, data->reg_temp_hyst[i], |
| data->temp_max_hyst[i]); |
| if (i > 2) |
| continue; |
| if (data->have_temp_offset & (1 << i)) |
| w83627ehf_write_value(data, |
| W83627EHF_REG_TEMP_OFFSET[i], |
| data->temp_offset[i]); |
| } |
| |
| /* Restore other settings */ |
| w83627ehf_write_value(data, W83627EHF_REG_VBAT, data->vbat); |
| if (sio_data->kind == nct6775) { |
| w83627ehf_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1); |
| w83627ehf_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2); |
| } |
| |
| /* Force re-reading all values */ |
| data->valid = 0; |
| mutex_unlock(&data->update_lock); |
| |
| return 0; |
| } |
| |
| static const struct dev_pm_ops w83627ehf_dev_pm_ops = { |
| .suspend = w83627ehf_suspend, |
| .resume = w83627ehf_resume, |
| }; |
| |
| #define W83627EHF_DEV_PM_OPS (&w83627ehf_dev_pm_ops) |
| #else |
| #define W83627EHF_DEV_PM_OPS NULL |
| #endif /* CONFIG_PM */ |
| |
| static struct platform_driver w83627ehf_driver = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = DRVNAME, |
| .pm = W83627EHF_DEV_PM_OPS, |
| }, |
| .probe = w83627ehf_probe, |
| .remove = w83627ehf_remove, |
| }; |
| |
| /* w83627ehf_find() looks for a '627 in the Super-I/O config space */ |
| static int __init w83627ehf_find(int sioaddr, unsigned short *addr, |
| struct w83627ehf_sio_data *sio_data) |
| { |
| static const char sio_name_W83627EHF[] __initconst = "W83627EHF"; |
| static const char sio_name_W83627EHG[] __initconst = "W83627EHG"; |
| static const char sio_name_W83627DHG[] __initconst = "W83627DHG"; |
| static const char sio_name_W83627DHG_P[] __initconst = "W83627DHG-P"; |
| static const char sio_name_W83627UHG[] __initconst = "W83627UHG"; |
| static const char sio_name_W83667HG[] __initconst = "W83667HG"; |
| static const char sio_name_W83667HG_B[] __initconst = "W83667HG-B"; |
| static const char sio_name_NCT6775[] __initconst = "NCT6775F"; |
| static const char sio_name_NCT6776[] __initconst = "NCT6776F"; |
| |
| u16 val; |
| const char *sio_name; |
| |
| superio_enter(sioaddr); |
| |
| 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_W83627EHF_ID: |
| sio_data->kind = w83627ehf; |
| sio_name = sio_name_W83627EHF; |
| break; |
| case SIO_W83627EHG_ID: |
| sio_data->kind = w83627ehf; |
| sio_name = sio_name_W83627EHG; |
| break; |
| case SIO_W83627DHG_ID: |
| sio_data->kind = w83627dhg; |
| sio_name = sio_name_W83627DHG; |
| break; |
| case SIO_W83627DHG_P_ID: |
| sio_data->kind = w83627dhg_p; |
| sio_name = sio_name_W83627DHG_P; |
| break; |
| case SIO_W83627UHG_ID: |
| sio_data->kind = w83627uhg; |
| sio_name = sio_name_W83627UHG; |
| break; |
| case SIO_W83667HG_ID: |
| sio_data->kind = w83667hg; |
| sio_name = sio_name_W83667HG; |
| break; |
| case SIO_W83667HG_B_ID: |
| sio_data->kind = w83667hg_b; |
| sio_name = sio_name_W83667HG_B; |
| break; |
| case SIO_NCT6775_ID: |
| sio_data->kind = nct6775; |
| sio_name = sio_name_NCT6775; |
| break; |
| case SIO_NCT6776_ID: |
| sio_data->kind = nct6776; |
| sio_name = sio_name_NCT6776; |
| 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, W83627EHF_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); |
| } |
| |
| superio_exit(sioaddr); |
| pr_info("Found %s chip at %#x\n", sio_name, *addr); |
| sio_data->sioreg = sioaddr; |
| |
| return 0; |
| } |
| |
| /* |
| * 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 w83627ehf driver. But since we platform_device_alloc(), we |
| * must keep track of the device |
| */ |
| static struct platform_device *pdev; |
| |
| static int __init sensors_w83627ehf_init(void) |
| { |
| int err; |
| unsigned short address; |
| struct resource res; |
| struct w83627ehf_sio_data sio_data; |
| |
| /* |
| * 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 |
| * w83627ehf hardware monitor, and call probe() |
| */ |
| if (w83627ehf_find(0x2e, &address, &sio_data) && |
| w83627ehf_find(0x4e, &address, &sio_data)) |
| return -ENODEV; |
| |
| err = platform_driver_register(&w83627ehf_driver); |
| if (err) |
| goto exit; |
| |
| pdev = platform_device_alloc(DRVNAME, address); |
| if (!pdev) { |
| err = -ENOMEM; |
| pr_err("Device allocation failed\n"); |
| goto exit_unregister; |
| } |
| |
| err = platform_device_add_data(pdev, &sio_data, |
| sizeof(struct w83627ehf_sio_data)); |
| if (err) { |
| pr_err("Platform data allocation failed\n"); |
| 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) |
| goto exit_device_put; |
| |
| err = platform_device_add_resources(pdev, &res, 1); |
| if (err) { |
| pr_err("Device resource addition failed (%d)\n", err); |
| goto exit_device_put; |
| } |
| |
| /* platform_device_add calls probe() */ |
| err = platform_device_add(pdev); |
| if (err) { |
| pr_err("Device addition failed (%d)\n", err); |
| goto exit_device_put; |
| } |
| |
| return 0; |
| |
| exit_device_put: |
| platform_device_put(pdev); |
| exit_unregister: |
| platform_driver_unregister(&w83627ehf_driver); |
| exit: |
| return err; |
| } |
| |
| static void __exit sensors_w83627ehf_exit(void) |
| { |
| platform_device_unregister(pdev); |
| platform_driver_unregister(&w83627ehf_driver); |
| } |
| |
| MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); |
| MODULE_DESCRIPTION("W83627EHF driver"); |
| MODULE_LICENSE("GPL"); |
| |
| module_init(sensors_w83627ehf_init); |
| module_exit(sensors_w83627ehf_exit); |