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1929 lines
50 KiB
1929 lines
50 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives |
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* Copyright (C) 2007-2008, Advanced Micro Devices, Inc. |
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* Copyright (C) 2008 Jordan Crouse <[email protected]> |
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* Copyright (C) 2008 Hans de Goede <[email protected]> |
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* Copyright (C) 2009 Jean Delvare <[email protected]> |
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* |
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* Derived from the lm83 driver by Jean Delvare |
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*/ |
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#include <linux/module.h> |
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#include <linux/of_device.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/i2c.h> |
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#include <linux/hwmon.h> |
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#include <linux/hwmon-sysfs.h> |
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#include <linux/hwmon-vid.h> |
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#include <linux/err.h> |
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#include <linux/jiffies.h> |
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#include <linux/of.h> |
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#include <linux/util_macros.h> |
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/* Indexes for the sysfs hooks */ |
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#define INPUT 0 |
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#define MIN 1 |
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#define MAX 2 |
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#define CONTROL 3 |
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#define OFFSET 3 |
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#define AUTOMIN 4 |
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#define THERM 5 |
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#define HYSTERSIS 6 |
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/* |
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* These are unique identifiers for the sysfs functions - unlike the |
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* numbers above, these are not also indexes into an array |
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*/ |
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#define ALARM 9 |
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#define FAULT 10 |
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/* 7475 Common Registers */ |
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#define REG_DEVREV2 0x12 /* ADT7490 only */ |
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#define REG_VTT 0x1E /* ADT7490 only */ |
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#define REG_EXTEND3 0x1F /* ADT7490 only */ |
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#define REG_VOLTAGE_BASE 0x20 |
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#define REG_TEMP_BASE 0x25 |
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#define REG_TACH_BASE 0x28 |
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#define REG_PWM_BASE 0x30 |
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#define REG_PWM_MAX_BASE 0x38 |
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#define REG_DEVID 0x3D |
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#define REG_VENDID 0x3E |
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#define REG_DEVID2 0x3F |
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#define REG_CONFIG1 0x40 |
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#define REG_STATUS1 0x41 |
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#define REG_STATUS2 0x42 |
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#define REG_VID 0x43 /* ADT7476 only */ |
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#define REG_VOLTAGE_MIN_BASE 0x44 |
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#define REG_VOLTAGE_MAX_BASE 0x45 |
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#define REG_TEMP_MIN_BASE 0x4E |
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#define REG_TEMP_MAX_BASE 0x4F |
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#define REG_TACH_MIN_BASE 0x54 |
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#define REG_PWM_CONFIG_BASE 0x5C |
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#define REG_TEMP_TRANGE_BASE 0x5F |
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#define REG_ENHANCE_ACOUSTICS1 0x62 |
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#define REG_ENHANCE_ACOUSTICS2 0x63 |
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#define REG_PWM_MIN_BASE 0x64 |
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#define REG_TEMP_TMIN_BASE 0x67 |
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#define REG_TEMP_THERM_BASE 0x6A |
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#define REG_REMOTE1_HYSTERSIS 0x6D |
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#define REG_REMOTE2_HYSTERSIS 0x6E |
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#define REG_TEMP_OFFSET_BASE 0x70 |
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#define REG_CONFIG2 0x73 |
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#define REG_EXTEND1 0x76 |
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#define REG_EXTEND2 0x77 |
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#define REG_CONFIG3 0x78 |
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#define REG_CONFIG5 0x7C |
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#define REG_CONFIG4 0x7D |
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#define REG_STATUS4 0x81 /* ADT7490 only */ |
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#define REG_VTT_MIN 0x84 /* ADT7490 only */ |
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#define REG_VTT_MAX 0x86 /* ADT7490 only */ |
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#define VID_VIDSEL 0x80 /* ADT7476 only */ |
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#define CONFIG2_ATTN 0x20 |
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#define CONFIG3_SMBALERT 0x01 |
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#define CONFIG3_THERM 0x02 |
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#define CONFIG4_PINFUNC 0x03 |
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#define CONFIG4_MAXDUTY 0x08 |
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#define CONFIG4_ATTN_IN10 0x30 |
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#define CONFIG4_ATTN_IN43 0xC0 |
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#define CONFIG5_TWOSCOMP 0x01 |
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#define CONFIG5_TEMPOFFSET 0x02 |
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#define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */ |
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/* ADT7475 Settings */ |
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#define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */ |
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#define ADT7475_TEMP_COUNT 3 |
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#define ADT7475_TACH_COUNT 4 |
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#define ADT7475_PWM_COUNT 3 |
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/* Macro to read the registers */ |
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#define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg)) |
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/* Macros to easily index the registers */ |
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#define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2)) |
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#define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2)) |
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#define PWM_REG(idx) (REG_PWM_BASE + (idx)) |
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#define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx)) |
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#define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx)) |
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#define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx)) |
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#define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx)) |
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#define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2)) |
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#define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2)) |
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#define TEMP_REG(idx) (REG_TEMP_BASE + (idx)) |
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#define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2)) |
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#define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2)) |
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#define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx)) |
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#define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx)) |
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#define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx)) |
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#define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx)) |
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
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enum chips { adt7473, adt7475, adt7476, adt7490 }; |
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static const struct i2c_device_id adt7475_id[] = { |
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{ "adt7473", adt7473 }, |
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{ "adt7475", adt7475 }, |
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{ "adt7476", adt7476 }, |
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{ "adt7490", adt7490 }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(i2c, adt7475_id); |
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static const struct of_device_id __maybe_unused adt7475_of_match[] = { |
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{ |
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.compatible = "adi,adt7473", |
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.data = (void *)adt7473 |
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}, |
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{ |
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.compatible = "adi,adt7475", |
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.data = (void *)adt7475 |
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}, |
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{ |
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.compatible = "adi,adt7476", |
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.data = (void *)adt7476 |
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}, |
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{ |
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.compatible = "adi,adt7490", |
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.data = (void *)adt7490 |
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}, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(of, adt7475_of_match); |
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struct adt7475_data { |
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struct i2c_client *client; |
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struct mutex lock; |
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unsigned long measure_updated; |
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bool valid; |
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u8 config2; |
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u8 config4; |
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u8 config5; |
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u8 has_voltage; |
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u8 bypass_attn; /* Bypass voltage attenuator */ |
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u8 has_pwm2:1; |
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u8 has_fan4:1; |
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u8 has_vid:1; |
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u32 alarms; |
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u16 voltage[3][6]; |
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u16 temp[7][3]; |
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u16 tach[2][4]; |
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u8 pwm[4][3]; |
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u8 range[3]; |
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u8 pwmctl[3]; |
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u8 pwmchan[3]; |
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u8 enh_acoustics[2]; |
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u8 vid; |
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u8 vrm; |
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const struct attribute_group *groups[9]; |
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}; |
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static struct i2c_driver adt7475_driver; |
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static struct adt7475_data *adt7475_update_device(struct device *dev); |
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static void adt7475_read_hystersis(struct i2c_client *client); |
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static void adt7475_read_pwm(struct i2c_client *client, int index); |
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/* Given a temp value, convert it to register value */ |
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static inline u16 temp2reg(struct adt7475_data *data, long val) |
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{ |
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u16 ret; |
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if (!(data->config5 & CONFIG5_TWOSCOMP)) { |
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val = clamp_val(val, -64000, 191000); |
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ret = (val + 64500) / 1000; |
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} else { |
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val = clamp_val(val, -128000, 127000); |
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if (val < -500) |
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ret = (256500 + val) / 1000; |
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else |
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ret = (val + 500) / 1000; |
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} |
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return ret << 2; |
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} |
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/* Given a register value, convert it to a real temp value */ |
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static inline int reg2temp(struct adt7475_data *data, u16 reg) |
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{ |
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if (data->config5 & CONFIG5_TWOSCOMP) { |
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if (reg >= 512) |
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return (reg - 1024) * 250; |
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else |
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return reg * 250; |
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} else |
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return (reg - 256) * 250; |
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} |
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static inline int tach2rpm(u16 tach) |
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{ |
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if (tach == 0 || tach == 0xFFFF) |
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return 0; |
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return (90000 * 60) / tach; |
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} |
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static inline u16 rpm2tach(unsigned long rpm) |
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{ |
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if (rpm == 0) |
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return 0; |
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return clamp_val((90000 * 60) / rpm, 1, 0xFFFF); |
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} |
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/* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */ |
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static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = { |
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{ 45, 94 }, /* +2.5V */ |
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{ 175, 525 }, /* Vccp */ |
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{ 68, 71 }, /* Vcc */ |
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{ 93, 47 }, /* +5V */ |
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{ 120, 20 }, /* +12V */ |
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{ 45, 45 }, /* Vtt */ |
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}; |
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static inline int reg2volt(int channel, u16 reg, u8 bypass_attn) |
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{ |
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const int *r = adt7473_in_scaling[channel]; |
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if (bypass_attn & (1 << channel)) |
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return DIV_ROUND_CLOSEST(reg * 2250, 1024); |
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return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024); |
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} |
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static inline u16 volt2reg(int channel, long volt, u8 bypass_attn) |
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{ |
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const int *r = adt7473_in_scaling[channel]; |
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long reg; |
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if (bypass_attn & (1 << channel)) |
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reg = DIV_ROUND_CLOSEST(volt * 1024, 2250); |
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else |
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reg = DIV_ROUND_CLOSEST(volt * r[1] * 1024, |
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(r[0] + r[1]) * 2250); |
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return clamp_val(reg, 0, 1023) & (0xff << 2); |
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} |
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static int adt7475_read_word(struct i2c_client *client, int reg) |
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{ |
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int val1, val2; |
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val1 = i2c_smbus_read_byte_data(client, reg); |
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if (val1 < 0) |
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return val1; |
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val2 = i2c_smbus_read_byte_data(client, reg + 1); |
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if (val2 < 0) |
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return val2; |
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return val1 | (val2 << 8); |
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} |
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static void adt7475_write_word(struct i2c_client *client, int reg, u16 val) |
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{ |
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i2c_smbus_write_byte_data(client, reg + 1, val >> 8); |
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i2c_smbus_write_byte_data(client, reg, val & 0xFF); |
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} |
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static ssize_t voltage_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct adt7475_data *data = adt7475_update_device(dev); |
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struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
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unsigned short val; |
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if (IS_ERR(data)) |
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return PTR_ERR(data); |
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switch (sattr->nr) { |
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case ALARM: |
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return sprintf(buf, "%d\n", |
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(data->alarms >> sattr->index) & 1); |
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default: |
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val = data->voltage[sattr->nr][sattr->index]; |
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return sprintf(buf, "%d\n", |
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reg2volt(sattr->index, val, data->bypass_attn)); |
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} |
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} |
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static ssize_t voltage_store(struct device *dev, |
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struct device_attribute *attr, const char *buf, |
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size_t count) |
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{ |
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struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
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struct adt7475_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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unsigned char reg; |
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long val; |
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if (kstrtol(buf, 10, &val)) |
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return -EINVAL; |
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mutex_lock(&data->lock); |
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data->voltage[sattr->nr][sattr->index] = |
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volt2reg(sattr->index, val, data->bypass_attn); |
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if (sattr->index < ADT7475_VOLTAGE_COUNT) { |
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if (sattr->nr == MIN) |
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reg = VOLTAGE_MIN_REG(sattr->index); |
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else |
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reg = VOLTAGE_MAX_REG(sattr->index); |
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} else { |
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if (sattr->nr == MIN) |
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reg = REG_VTT_MIN; |
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else |
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reg = REG_VTT_MAX; |
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} |
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i2c_smbus_write_byte_data(client, reg, |
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data->voltage[sattr->nr][sattr->index] >> 2); |
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mutex_unlock(&data->lock); |
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return count; |
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} |
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static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct adt7475_data *data = adt7475_update_device(dev); |
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struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
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int out; |
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if (IS_ERR(data)) |
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return PTR_ERR(data); |
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switch (sattr->nr) { |
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case HYSTERSIS: |
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mutex_lock(&data->lock); |
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out = data->temp[sattr->nr][sattr->index]; |
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if (sattr->index != 1) |
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out = (out >> 4) & 0xF; |
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else |
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out = (out & 0xF); |
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/* |
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* Show the value as an absolute number tied to |
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* THERM |
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*/ |
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out = reg2temp(data, data->temp[THERM][sattr->index]) - |
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out * 1000; |
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mutex_unlock(&data->lock); |
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break; |
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case OFFSET: |
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/* |
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* Offset is always 2's complement, regardless of the |
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* setting in CONFIG5 |
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*/ |
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mutex_lock(&data->lock); |
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out = (s8)data->temp[sattr->nr][sattr->index]; |
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if (data->config5 & CONFIG5_TEMPOFFSET) |
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out *= 1000; |
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else |
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out *= 500; |
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mutex_unlock(&data->lock); |
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break; |
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case ALARM: |
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out = (data->alarms >> (sattr->index + 4)) & 1; |
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break; |
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case FAULT: |
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/* Note - only for remote1 and remote2 */ |
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out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000)); |
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break; |
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default: |
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/* All other temp values are in the configured format */ |
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out = reg2temp(data, data->temp[sattr->nr][sattr->index]); |
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} |
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return sprintf(buf, "%d\n", out); |
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} |
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static ssize_t temp_store(struct device *dev, struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
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struct adt7475_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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unsigned char reg = 0; |
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u8 out; |
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int temp; |
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long val; |
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if (kstrtol(buf, 10, &val)) |
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return -EINVAL; |
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mutex_lock(&data->lock); |
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/* We need the config register in all cases for temp <-> reg conv. */ |
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data->config5 = adt7475_read(REG_CONFIG5); |
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switch (sattr->nr) { |
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case OFFSET: |
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if (data->config5 & CONFIG5_TEMPOFFSET) { |
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val = clamp_val(val, -63000, 127000); |
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out = data->temp[OFFSET][sattr->index] = val / 1000; |
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} else { |
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val = clamp_val(val, -63000, 64000); |
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out = data->temp[OFFSET][sattr->index] = val / 500; |
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} |
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break; |
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case HYSTERSIS: |
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/* |
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* The value will be given as an absolute value, turn it |
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* into an offset based on THERM |
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*/ |
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/* Read fresh THERM and HYSTERSIS values from the chip */ |
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data->temp[THERM][sattr->index] = |
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adt7475_read(TEMP_THERM_REG(sattr->index)) << 2; |
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adt7475_read_hystersis(client); |
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temp = reg2temp(data, data->temp[THERM][sattr->index]); |
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val = clamp_val(val, temp - 15000, temp); |
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val = (temp - val) / 1000; |
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|
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if (sattr->index != 1) { |
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data->temp[HYSTERSIS][sattr->index] &= 0xF0; |
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data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4; |
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} else { |
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data->temp[HYSTERSIS][sattr->index] &= 0x0F; |
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data->temp[HYSTERSIS][sattr->index] |= (val & 0xF); |
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} |
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out = data->temp[HYSTERSIS][sattr->index]; |
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break; |
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default: |
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data->temp[sattr->nr][sattr->index] = temp2reg(data, val); |
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|
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/* |
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* We maintain an extra 2 digits of precision for simplicity |
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* - shift those back off before writing the value |
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*/ |
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out = (u8) (data->temp[sattr->nr][sattr->index] >> 2); |
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} |
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|
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switch (sattr->nr) { |
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case MIN: |
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reg = TEMP_MIN_REG(sattr->index); |
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break; |
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case MAX: |
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reg = TEMP_MAX_REG(sattr->index); |
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break; |
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case OFFSET: |
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reg = TEMP_OFFSET_REG(sattr->index); |
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break; |
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case AUTOMIN: |
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reg = TEMP_TMIN_REG(sattr->index); |
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break; |
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case THERM: |
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reg = TEMP_THERM_REG(sattr->index); |
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break; |
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case HYSTERSIS: |
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if (sattr->index != 2) |
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reg = REG_REMOTE1_HYSTERSIS; |
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else |
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reg = REG_REMOTE2_HYSTERSIS; |
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|
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break; |
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} |
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i2c_smbus_write_byte_data(client, reg, out); |
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|
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mutex_unlock(&data->lock); |
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return count; |
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} |
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|
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/* Assuming CONFIG6[SLOW] is 0 */ |
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static const int ad7475_st_map[] = { |
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37500, 18800, 12500, 7500, 4700, 3100, 1600, 800, |
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}; |
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static ssize_t temp_st_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
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struct adt7475_data *data = dev_get_drvdata(dev); |
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long val; |
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|
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switch (sattr->index) { |
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case 0: |
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val = data->enh_acoustics[0] & 0xf; |
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break; |
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case 1: |
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val = (data->enh_acoustics[1] >> 4) & 0xf; |
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break; |
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case 2: |
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default: |
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val = data->enh_acoustics[1] & 0xf; |
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break; |
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} |
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|
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if (val & 0x8) |
|
return sprintf(buf, "%d\n", ad7475_st_map[val & 0x7]); |
|
else |
|
return sprintf(buf, "0\n"); |
|
} |
|
|
|
static ssize_t temp_st_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned char reg; |
|
int shift, idx; |
|
ulong val; |
|
|
|
if (kstrtoul(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
switch (sattr->index) { |
|
case 0: |
|
reg = REG_ENHANCE_ACOUSTICS1; |
|
shift = 0; |
|
idx = 0; |
|
break; |
|
case 1: |
|
reg = REG_ENHANCE_ACOUSTICS2; |
|
shift = 0; |
|
idx = 1; |
|
break; |
|
case 2: |
|
default: |
|
reg = REG_ENHANCE_ACOUSTICS2; |
|
shift = 4; |
|
idx = 1; |
|
break; |
|
} |
|
|
|
if (val > 0) { |
|
val = find_closest_descending(val, ad7475_st_map, |
|
ARRAY_SIZE(ad7475_st_map)); |
|
val |= 0x8; |
|
} |
|
|
|
mutex_lock(&data->lock); |
|
|
|
data->enh_acoustics[idx] &= ~(0xf << shift); |
|
data->enh_acoustics[idx] |= (val << shift); |
|
|
|
i2c_smbus_write_byte_data(client, reg, data->enh_acoustics[idx]); |
|
|
|
mutex_unlock(&data->lock); |
|
|
|
return count; |
|
} |
|
|
|
/* |
|
* Table of autorange values - the user will write the value in millidegrees, |
|
* and we'll convert it |
|
*/ |
|
static const int autorange_table[] = { |
|
2000, 2500, 3330, 4000, 5000, 6670, 8000, |
|
10000, 13330, 16000, 20000, 26670, 32000, 40000, |
|
53330, 80000 |
|
}; |
|
|
|
static ssize_t point2_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
int out, val; |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
mutex_lock(&data->lock); |
|
out = (data->range[sattr->index] >> 4) & 0x0F; |
|
val = reg2temp(data, data->temp[AUTOMIN][sattr->index]); |
|
mutex_unlock(&data->lock); |
|
|
|
return sprintf(buf, "%d\n", val + autorange_table[out]); |
|
} |
|
|
|
static ssize_t point2_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
int temp; |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
|
|
/* Get a fresh copy of the needed registers */ |
|
data->config5 = adt7475_read(REG_CONFIG5); |
|
data->temp[AUTOMIN][sattr->index] = |
|
adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2; |
|
data->range[sattr->index] = |
|
adt7475_read(TEMP_TRANGE_REG(sattr->index)); |
|
|
|
/* |
|
* The user will write an absolute value, so subtract the start point |
|
* to figure the range |
|
*/ |
|
temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]); |
|
val = clamp_val(val, temp + autorange_table[0], |
|
temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]); |
|
val -= temp; |
|
|
|
/* Find the nearest table entry to what the user wrote */ |
|
val = find_closest(val, autorange_table, ARRAY_SIZE(autorange_table)); |
|
|
|
data->range[sattr->index] &= ~0xF0; |
|
data->range[sattr->index] |= val << 4; |
|
|
|
i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), |
|
data->range[sattr->index]); |
|
|
|
mutex_unlock(&data->lock); |
|
return count; |
|
} |
|
|
|
static ssize_t tach_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
int out; |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
if (sattr->nr == ALARM) |
|
out = (data->alarms >> (sattr->index + 10)) & 1; |
|
else |
|
out = tach2rpm(data->tach[sattr->nr][sattr->index]); |
|
|
|
return sprintf(buf, "%d\n", out); |
|
} |
|
|
|
static ssize_t tach_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned long val; |
|
|
|
if (kstrtoul(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
|
|
data->tach[MIN][sattr->index] = rpm2tach(val); |
|
|
|
adt7475_write_word(client, TACH_MIN_REG(sattr->index), |
|
data->tach[MIN][sattr->index]); |
|
|
|
mutex_unlock(&data->lock); |
|
return count; |
|
} |
|
|
|
static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]); |
|
} |
|
|
|
static ssize_t pwmchan_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return sprintf(buf, "%d\n", data->pwmchan[sattr->index]); |
|
} |
|
|
|
static ssize_t pwmctrl_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return sprintf(buf, "%d\n", data->pwmctl[sattr->index]); |
|
} |
|
|
|
static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
|
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned char reg = 0; |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
|
|
switch (sattr->nr) { |
|
case INPUT: |
|
/* Get a fresh value for CONTROL */ |
|
data->pwm[CONTROL][sattr->index] = |
|
adt7475_read(PWM_CONFIG_REG(sattr->index)); |
|
|
|
/* |
|
* If we are not in manual mode, then we shouldn't allow |
|
* the user to set the pwm speed |
|
*/ |
|
if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) { |
|
mutex_unlock(&data->lock); |
|
return count; |
|
} |
|
|
|
reg = PWM_REG(sattr->index); |
|
break; |
|
|
|
case MIN: |
|
reg = PWM_MIN_REG(sattr->index); |
|
break; |
|
|
|
case MAX: |
|
reg = PWM_MAX_REG(sattr->index); |
|
break; |
|
} |
|
|
|
data->pwm[sattr->nr][sattr->index] = clamp_val(val, 0, 0xFF); |
|
i2c_smbus_write_byte_data(client, reg, |
|
data->pwm[sattr->nr][sattr->index]); |
|
mutex_unlock(&data->lock); |
|
|
|
return count; |
|
} |
|
|
|
static ssize_t stall_disable_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
|
|
u8 mask = BIT(5 + sattr->index); |
|
|
|
return sprintf(buf, "%d\n", !!(data->enh_acoustics[0] & mask)); |
|
} |
|
|
|
static ssize_t stall_disable_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
u8 mask = BIT(5 + sattr->index); |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
|
|
data->enh_acoustics[0] &= ~mask; |
|
if (val) |
|
data->enh_acoustics[0] |= mask; |
|
|
|
i2c_smbus_write_byte_data(client, REG_ENHANCE_ACOUSTICS1, |
|
data->enh_acoustics[0]); |
|
|
|
mutex_unlock(&data->lock); |
|
|
|
return count; |
|
} |
|
|
|
/* Called by set_pwmctrl and set_pwmchan */ |
|
|
|
static int hw_set_pwm(struct i2c_client *client, int index, |
|
unsigned int pwmctl, unsigned int pwmchan) |
|
{ |
|
struct adt7475_data *data = i2c_get_clientdata(client); |
|
long val = 0; |
|
|
|
switch (pwmctl) { |
|
case 0: |
|
val = 0x03; /* Run at full speed */ |
|
break; |
|
case 1: |
|
val = 0x07; /* Manual mode */ |
|
break; |
|
case 2: |
|
switch (pwmchan) { |
|
case 1: |
|
/* Remote1 controls PWM */ |
|
val = 0x00; |
|
break; |
|
case 2: |
|
/* local controls PWM */ |
|
val = 0x01; |
|
break; |
|
case 4: |
|
/* remote2 controls PWM */ |
|
val = 0x02; |
|
break; |
|
case 6: |
|
/* local/remote2 control PWM */ |
|
val = 0x05; |
|
break; |
|
case 7: |
|
/* All three control PWM */ |
|
val = 0x06; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
data->pwmctl[index] = pwmctl; |
|
data->pwmchan[index] = pwmchan; |
|
|
|
data->pwm[CONTROL][index] &= ~0xE0; |
|
data->pwm[CONTROL][index] |= (val & 7) << 5; |
|
|
|
i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
|
data->pwm[CONTROL][index]); |
|
|
|
return 0; |
|
} |
|
|
|
static ssize_t pwmchan_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
int r; |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
/* Read Modify Write PWM values */ |
|
adt7475_read_pwm(client, sattr->index); |
|
r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val); |
|
if (r) |
|
count = r; |
|
mutex_unlock(&data->lock); |
|
|
|
return count; |
|
} |
|
|
|
static ssize_t pwmctrl_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
int r; |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
/* Read Modify Write PWM values */ |
|
adt7475_read_pwm(client, sattr->index); |
|
r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]); |
|
if (r) |
|
count = r; |
|
mutex_unlock(&data->lock); |
|
|
|
return count; |
|
} |
|
|
|
/* List of frequencies for the PWM */ |
|
static const int pwmfreq_table[] = { |
|
11, 14, 22, 29, 35, 44, 58, 88, 22500 |
|
}; |
|
|
|
static ssize_t pwmfreq_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
int idx; |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
idx = clamp_val(data->range[sattr->index] & 0xf, 0, |
|
ARRAY_SIZE(pwmfreq_table) - 1); |
|
|
|
return sprintf(buf, "%d\n", pwmfreq_table[idx]); |
|
} |
|
|
|
static ssize_t pwmfreq_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
int out; |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
|
|
out = find_closest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table)); |
|
|
|
mutex_lock(&data->lock); |
|
|
|
data->range[sattr->index] = |
|
adt7475_read(TEMP_TRANGE_REG(sattr->index)); |
|
data->range[sattr->index] &= ~0xf; |
|
data->range[sattr->index] |= out; |
|
|
|
i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), |
|
data->range[sattr->index]); |
|
|
|
mutex_unlock(&data->lock); |
|
return count; |
|
} |
|
|
|
static ssize_t pwm_use_point2_pwm_at_crit_show(struct device *dev, |
|
struct device_attribute *devattr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY)); |
|
} |
|
|
|
static ssize_t pwm_use_point2_pwm_at_crit_store(struct device *dev, |
|
struct device_attribute *devattr, |
|
const char *buf, size_t count) |
|
{ |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
if (val != 0 && val != 1) |
|
return -EINVAL; |
|
|
|
mutex_lock(&data->lock); |
|
data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4); |
|
if (val) |
|
data->config4 |= CONFIG4_MAXDUTY; |
|
else |
|
data->config4 &= ~CONFIG4_MAXDUTY; |
|
i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4); |
|
mutex_unlock(&data->lock); |
|
|
|
return count; |
|
} |
|
|
|
static ssize_t vrm_show(struct device *dev, struct device_attribute *devattr, |
|
char *buf) |
|
{ |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
return sprintf(buf, "%d\n", (int)data->vrm); |
|
} |
|
|
|
static ssize_t vrm_store(struct device *dev, struct device_attribute *devattr, |
|
const char *buf, size_t count) |
|
{ |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
long val; |
|
|
|
if (kstrtol(buf, 10, &val)) |
|
return -EINVAL; |
|
if (val < 0 || val > 255) |
|
return -EINVAL; |
|
data->vrm = val; |
|
|
|
return count; |
|
} |
|
|
|
static ssize_t cpu0_vid_show(struct device *dev, |
|
struct device_attribute *devattr, char *buf) |
|
{ |
|
struct adt7475_data *data = adt7475_update_device(dev); |
|
|
|
if (IS_ERR(data)) |
|
return PTR_ERR(data); |
|
|
|
return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_2_RO(in0_input, voltage, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(in0_max, voltage, MAX, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(in0_min, voltage, MIN, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(in0_alarm, voltage, ALARM, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(in1_input, voltage, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(in1_max, voltage, MAX, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(in1_min, voltage, MIN, 1); |
|
static SENSOR_DEVICE_ATTR_2_RO(in1_alarm, voltage, ALARM, 1); |
|
static SENSOR_DEVICE_ATTR_2_RO(in2_input, voltage, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(in2_max, voltage, MAX, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(in2_min, voltage, MIN, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(in2_alarm, voltage, ALARM, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(in3_input, voltage, INPUT, 3); |
|
static SENSOR_DEVICE_ATTR_2_RW(in3_max, voltage, MAX, 3); |
|
static SENSOR_DEVICE_ATTR_2_RW(in3_min, voltage, MIN, 3); |
|
static SENSOR_DEVICE_ATTR_2_RO(in3_alarm, voltage, ALARM, 3); |
|
static SENSOR_DEVICE_ATTR_2_RO(in4_input, voltage, INPUT, 4); |
|
static SENSOR_DEVICE_ATTR_2_RW(in4_max, voltage, MAX, 4); |
|
static SENSOR_DEVICE_ATTR_2_RW(in4_min, voltage, MIN, 4); |
|
static SENSOR_DEVICE_ATTR_2_RO(in4_alarm, voltage, ALARM, 8); |
|
static SENSOR_DEVICE_ATTR_2_RO(in5_input, voltage, INPUT, 5); |
|
static SENSOR_DEVICE_ATTR_2_RW(in5_max, voltage, MAX, 5); |
|
static SENSOR_DEVICE_ATTR_2_RW(in5_min, voltage, MIN, 5); |
|
static SENSOR_DEVICE_ATTR_2_RO(in5_alarm, voltage, ALARM, 31); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp1_input, temp, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp1_alarm, temp, ALARM, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp1_fault, temp, FAULT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp, MAX, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_min, temp, MIN, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_offset, temp, OFFSET, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point1_temp, temp, AUTOMIN, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point2_temp, point2, 0, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_crit, temp, THERM, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_crit_hyst, temp, HYSTERSIS, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp1_smoothing, temp_st, 0, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp2_input, temp, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp2_alarm, temp, ALARM, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp, MAX, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_min, temp, MIN, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_offset, temp, OFFSET, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point1_temp, temp, AUTOMIN, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point2_temp, point2, 0, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_crit, temp, THERM, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_crit_hyst, temp, HYSTERSIS, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp2_smoothing, temp_st, 0, 1); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp3_input, temp, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp3_alarm, temp, ALARM, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(temp3_fault, temp, FAULT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_max, temp, MAX, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_min, temp, MIN, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_offset, temp, OFFSET, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_point1_temp, temp, AUTOMIN, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_point2_temp, point2, 0, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_crit, temp, THERM, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_crit_hyst, temp, HYSTERSIS, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(temp3_smoothing, temp_st, 0, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan1_input, tach, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(fan1_min, tach, MIN, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan1_alarm, tach, ALARM, 0); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan2_input, tach, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(fan2_min, tach, MIN, 1); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan2_alarm, tach, ALARM, 1); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan3_input, tach, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(fan3_min, tach, MIN, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan3_alarm, tach, ALARM, 2); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan4_input, tach, INPUT, 3); |
|
static SENSOR_DEVICE_ATTR_2_RW(fan4_min, tach, MIN, 3); |
|
static SENSOR_DEVICE_ATTR_2_RO(fan4_alarm, tach, ALARM, 3); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1, pwm, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1_freq, pwmfreq, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1_enable, pwmctrl, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_channels_temp, pwmchan, INPUT, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, pwm, MIN, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, pwm, MAX, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm1_stall_disable, stall_disable, 0, 0); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2, pwm, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2_freq, pwmfreq, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2_enable, pwmctrl, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_channels_temp, pwmchan, INPUT, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, pwm, MIN, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, pwm, MAX, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm2_stall_disable, stall_disable, 0, 1); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3, pwm, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3_freq, pwmfreq, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3_enable, pwmctrl, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_channels_temp, pwmchan, INPUT, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, pwm, MIN, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, pwm, MAX, 2); |
|
static SENSOR_DEVICE_ATTR_2_RW(pwm3_stall_disable, stall_disable, 0, 2); |
|
|
|
/* Non-standard name, might need revisiting */ |
|
static DEVICE_ATTR_RW(pwm_use_point2_pwm_at_crit); |
|
|
|
static DEVICE_ATTR_RW(vrm); |
|
static DEVICE_ATTR_RO(cpu0_vid); |
|
|
|
static struct attribute *adt7475_attrs[] = { |
|
&sensor_dev_attr_in1_input.dev_attr.attr, |
|
&sensor_dev_attr_in1_max.dev_attr.attr, |
|
&sensor_dev_attr_in1_min.dev_attr.attr, |
|
&sensor_dev_attr_in1_alarm.dev_attr.attr, |
|
&sensor_dev_attr_in2_input.dev_attr.attr, |
|
&sensor_dev_attr_in2_max.dev_attr.attr, |
|
&sensor_dev_attr_in2_min.dev_attr.attr, |
|
&sensor_dev_attr_in2_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp1_input.dev_attr.attr, |
|
&sensor_dev_attr_temp1_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp1_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp1_max.dev_attr.attr, |
|
&sensor_dev_attr_temp1_min.dev_attr.attr, |
|
&sensor_dev_attr_temp1_offset.dev_attr.attr, |
|
&sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, |
|
&sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, |
|
&sensor_dev_attr_temp1_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, |
|
&sensor_dev_attr_temp1_smoothing.dev_attr.attr, |
|
&sensor_dev_attr_temp2_input.dev_attr.attr, |
|
&sensor_dev_attr_temp2_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp2_max.dev_attr.attr, |
|
&sensor_dev_attr_temp2_min.dev_attr.attr, |
|
&sensor_dev_attr_temp2_offset.dev_attr.attr, |
|
&sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, |
|
&sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, |
|
&sensor_dev_attr_temp2_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, |
|
&sensor_dev_attr_temp2_smoothing.dev_attr.attr, |
|
&sensor_dev_attr_temp3_input.dev_attr.attr, |
|
&sensor_dev_attr_temp3_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp3_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp3_max.dev_attr.attr, |
|
&sensor_dev_attr_temp3_min.dev_attr.attr, |
|
&sensor_dev_attr_temp3_offset.dev_attr.attr, |
|
&sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, |
|
&sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, |
|
&sensor_dev_attr_temp3_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, |
|
&sensor_dev_attr_temp3_smoothing.dev_attr.attr, |
|
&sensor_dev_attr_fan1_input.dev_attr.attr, |
|
&sensor_dev_attr_fan1_min.dev_attr.attr, |
|
&sensor_dev_attr_fan1_alarm.dev_attr.attr, |
|
&sensor_dev_attr_fan2_input.dev_attr.attr, |
|
&sensor_dev_attr_fan2_min.dev_attr.attr, |
|
&sensor_dev_attr_fan2_alarm.dev_attr.attr, |
|
&sensor_dev_attr_fan3_input.dev_attr.attr, |
|
&sensor_dev_attr_fan3_min.dev_attr.attr, |
|
&sensor_dev_attr_fan3_alarm.dev_attr.attr, |
|
&sensor_dev_attr_pwm1.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_freq.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_stall_disable.dev_attr.attr, |
|
&sensor_dev_attr_pwm3.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_freq.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_enable.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_stall_disable.dev_attr.attr, |
|
&dev_attr_pwm_use_point2_pwm_at_crit.attr, |
|
NULL, |
|
}; |
|
|
|
static struct attribute *fan4_attrs[] = { |
|
&sensor_dev_attr_fan4_input.dev_attr.attr, |
|
&sensor_dev_attr_fan4_min.dev_attr.attr, |
|
&sensor_dev_attr_fan4_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static struct attribute *pwm2_attrs[] = { |
|
&sensor_dev_attr_pwm2.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_freq.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_enable.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_stall_disable.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static struct attribute *in0_attrs[] = { |
|
&sensor_dev_attr_in0_input.dev_attr.attr, |
|
&sensor_dev_attr_in0_max.dev_attr.attr, |
|
&sensor_dev_attr_in0_min.dev_attr.attr, |
|
&sensor_dev_attr_in0_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static struct attribute *in3_attrs[] = { |
|
&sensor_dev_attr_in3_input.dev_attr.attr, |
|
&sensor_dev_attr_in3_max.dev_attr.attr, |
|
&sensor_dev_attr_in3_min.dev_attr.attr, |
|
&sensor_dev_attr_in3_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static struct attribute *in4_attrs[] = { |
|
&sensor_dev_attr_in4_input.dev_attr.attr, |
|
&sensor_dev_attr_in4_max.dev_attr.attr, |
|
&sensor_dev_attr_in4_min.dev_attr.attr, |
|
&sensor_dev_attr_in4_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static struct attribute *in5_attrs[] = { |
|
&sensor_dev_attr_in5_input.dev_attr.attr, |
|
&sensor_dev_attr_in5_max.dev_attr.attr, |
|
&sensor_dev_attr_in5_min.dev_attr.attr, |
|
&sensor_dev_attr_in5_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static struct attribute *vid_attrs[] = { |
|
&dev_attr_cpu0_vid.attr, |
|
&dev_attr_vrm.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs }; |
|
static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs }; |
|
static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs }; |
|
static const struct attribute_group in0_attr_group = { .attrs = in0_attrs }; |
|
static const struct attribute_group in3_attr_group = { .attrs = in3_attrs }; |
|
static const struct attribute_group in4_attr_group = { .attrs = in4_attrs }; |
|
static const struct attribute_group in5_attr_group = { .attrs = in5_attrs }; |
|
static const struct attribute_group vid_attr_group = { .attrs = vid_attrs }; |
|
|
|
static int adt7475_detect(struct i2c_client *client, |
|
struct i2c_board_info *info) |
|
{ |
|
struct i2c_adapter *adapter = client->adapter; |
|
int vendid, devid, devid2; |
|
const char *name; |
|
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
|
return -ENODEV; |
|
|
|
vendid = adt7475_read(REG_VENDID); |
|
devid2 = adt7475_read(REG_DEVID2); |
|
if (vendid != 0x41 || /* Analog Devices */ |
|
(devid2 & 0xf8) != 0x68) |
|
return -ENODEV; |
|
|
|
devid = adt7475_read(REG_DEVID); |
|
if (devid == 0x73) |
|
name = "adt7473"; |
|
else if (devid == 0x75 && client->addr == 0x2e) |
|
name = "adt7475"; |
|
else if (devid == 0x76) |
|
name = "adt7476"; |
|
else if ((devid2 & 0xfc) == 0x6c) |
|
name = "adt7490"; |
|
else { |
|
dev_dbg(&adapter->dev, |
|
"Couldn't detect an ADT7473/75/76/90 part at " |
|
"0x%02x\n", (unsigned int)client->addr); |
|
return -ENODEV; |
|
} |
|
|
|
strlcpy(info->type, name, I2C_NAME_SIZE); |
|
|
|
return 0; |
|
} |
|
|
|
static int adt7475_update_limits(struct i2c_client *client) |
|
{ |
|
struct adt7475_data *data = i2c_get_clientdata(client); |
|
int i; |
|
int ret; |
|
|
|
ret = adt7475_read(REG_CONFIG4); |
|
if (ret < 0) |
|
return ret; |
|
data->config4 = ret; |
|
|
|
ret = adt7475_read(REG_CONFIG5); |
|
if (ret < 0) |
|
return ret; |
|
data->config5 = ret; |
|
|
|
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
|
if (!(data->has_voltage & (1 << i))) |
|
continue; |
|
/* Adjust values so they match the input precision */ |
|
ret = adt7475_read(VOLTAGE_MIN_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->voltage[MIN][i] = ret << 2; |
|
|
|
ret = adt7475_read(VOLTAGE_MAX_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->voltage[MAX][i] = ret << 2; |
|
} |
|
|
|
if (data->has_voltage & (1 << 5)) { |
|
ret = adt7475_read(REG_VTT_MIN); |
|
if (ret < 0) |
|
return ret; |
|
data->voltage[MIN][5] = ret << 2; |
|
|
|
ret = adt7475_read(REG_VTT_MAX); |
|
if (ret < 0) |
|
return ret; |
|
data->voltage[MAX][5] = ret << 2; |
|
} |
|
|
|
for (i = 0; i < ADT7475_TEMP_COUNT; i++) { |
|
/* Adjust values so they match the input precision */ |
|
ret = adt7475_read(TEMP_MIN_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->temp[MIN][i] = ret << 2; |
|
|
|
ret = adt7475_read(TEMP_MAX_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->temp[MAX][i] = ret << 2; |
|
|
|
ret = adt7475_read(TEMP_TMIN_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->temp[AUTOMIN][i] = ret << 2; |
|
|
|
ret = adt7475_read(TEMP_THERM_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->temp[THERM][i] = ret << 2; |
|
|
|
ret = adt7475_read(TEMP_OFFSET_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->temp[OFFSET][i] = ret; |
|
} |
|
adt7475_read_hystersis(client); |
|
|
|
for (i = 0; i < ADT7475_TACH_COUNT; i++) { |
|
if (i == 3 && !data->has_fan4) |
|
continue; |
|
ret = adt7475_read_word(client, TACH_MIN_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->tach[MIN][i] = ret; |
|
} |
|
|
|
for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
|
if (i == 1 && !data->has_pwm2) |
|
continue; |
|
ret = adt7475_read(PWM_MAX_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->pwm[MAX][i] = ret; |
|
|
|
ret = adt7475_read(PWM_MIN_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->pwm[MIN][i] = ret; |
|
/* Set the channel and control information */ |
|
adt7475_read_pwm(client, i); |
|
} |
|
|
|
ret = adt7475_read(TEMP_TRANGE_REG(0)); |
|
if (ret < 0) |
|
return ret; |
|
data->range[0] = ret; |
|
|
|
ret = adt7475_read(TEMP_TRANGE_REG(1)); |
|
if (ret < 0) |
|
return ret; |
|
data->range[1] = ret; |
|
|
|
ret = adt7475_read(TEMP_TRANGE_REG(2)); |
|
if (ret < 0) |
|
return ret; |
|
data->range[2] = ret; |
|
|
|
return 0; |
|
} |
|
|
|
static int set_property_bit(const struct i2c_client *client, char *property, |
|
u8 *config, u8 bit_index) |
|
{ |
|
u32 prop_value = 0; |
|
int ret = of_property_read_u32(client->dev.of_node, property, |
|
&prop_value); |
|
|
|
if (!ret) { |
|
if (prop_value) |
|
*config |= (1 << bit_index); |
|
else |
|
*config &= ~(1 << bit_index); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int load_attenuators(const struct i2c_client *client, int chip, |
|
struct adt7475_data *data) |
|
{ |
|
int ret; |
|
|
|
if (chip == adt7476 || chip == adt7490) { |
|
set_property_bit(client, "adi,bypass-attenuator-in0", |
|
&data->config4, 4); |
|
set_property_bit(client, "adi,bypass-attenuator-in1", |
|
&data->config4, 5); |
|
set_property_bit(client, "adi,bypass-attenuator-in3", |
|
&data->config4, 6); |
|
set_property_bit(client, "adi,bypass-attenuator-in4", |
|
&data->config4, 7); |
|
|
|
ret = i2c_smbus_write_byte_data(client, REG_CONFIG4, |
|
data->config4); |
|
if (ret < 0) |
|
return ret; |
|
} else if (chip == adt7473 || chip == adt7475) { |
|
set_property_bit(client, "adi,bypass-attenuator-in1", |
|
&data->config2, 5); |
|
|
|
ret = i2c_smbus_write_byte_data(client, REG_CONFIG2, |
|
data->config2); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int adt7475_set_pwm_polarity(struct i2c_client *client) |
|
{ |
|
u32 states[ADT7475_PWM_COUNT]; |
|
int ret, i; |
|
u8 val; |
|
|
|
ret = of_property_read_u32_array(client->dev.of_node, |
|
"adi,pwm-active-state", states, |
|
ARRAY_SIZE(states)); |
|
if (ret) |
|
return ret; |
|
|
|
for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
|
ret = adt7475_read(PWM_CONFIG_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
val = ret; |
|
if (states[i]) |
|
val &= ~BIT(4); |
|
else |
|
val |= BIT(4); |
|
|
|
ret = i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(i), val); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int adt7475_probe(struct i2c_client *client) |
|
{ |
|
enum chips chip; |
|
static const char * const names[] = { |
|
[adt7473] = "ADT7473", |
|
[adt7475] = "ADT7475", |
|
[adt7476] = "ADT7476", |
|
[adt7490] = "ADT7490", |
|
}; |
|
|
|
struct adt7475_data *data; |
|
struct device *hwmon_dev; |
|
int i, ret = 0, revision, group_num = 0; |
|
u8 config3; |
|
const struct i2c_device_id *id = i2c_match_id(adt7475_id, client); |
|
|
|
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); |
|
if (data == NULL) |
|
return -ENOMEM; |
|
|
|
mutex_init(&data->lock); |
|
data->client = client; |
|
i2c_set_clientdata(client, data); |
|
|
|
if (client->dev.of_node) |
|
chip = (enum chips)of_device_get_match_data(&client->dev); |
|
else |
|
chip = id->driver_data; |
|
|
|
/* Initialize device-specific values */ |
|
switch (chip) { |
|
case adt7476: |
|
data->has_voltage = 0x0e; /* in1 to in3 */ |
|
revision = adt7475_read(REG_DEVID2) & 0x07; |
|
break; |
|
case adt7490: |
|
data->has_voltage = 0x3e; /* in1 to in5 */ |
|
revision = adt7475_read(REG_DEVID2) & 0x03; |
|
if (revision == 0x03) |
|
revision += adt7475_read(REG_DEVREV2); |
|
break; |
|
default: |
|
data->has_voltage = 0x06; /* in1, in2 */ |
|
revision = adt7475_read(REG_DEVID2) & 0x07; |
|
} |
|
|
|
config3 = adt7475_read(REG_CONFIG3); |
|
/* Pin PWM2 may alternatively be used for ALERT output */ |
|
if (!(config3 & CONFIG3_SMBALERT)) |
|
data->has_pwm2 = 1; |
|
/* Meaning of this bit is inverted for the ADT7473-1 */ |
|
if (id->driver_data == adt7473 && revision >= 1) |
|
data->has_pwm2 = !data->has_pwm2; |
|
|
|
data->config4 = adt7475_read(REG_CONFIG4); |
|
/* Pin TACH4 may alternatively be used for THERM */ |
|
if ((data->config4 & CONFIG4_PINFUNC) == 0x0) |
|
data->has_fan4 = 1; |
|
|
|
/* |
|
* THERM configuration is more complex on the ADT7476 and ADT7490, |
|
* because 2 different pins (TACH4 and +2.5 Vin) can be used for |
|
* this function |
|
*/ |
|
if (id->driver_data == adt7490) { |
|
if ((data->config4 & CONFIG4_PINFUNC) == 0x1 && |
|
!(config3 & CONFIG3_THERM)) |
|
data->has_fan4 = 1; |
|
} |
|
if (id->driver_data == adt7476 || id->driver_data == adt7490) { |
|
if (!(config3 & CONFIG3_THERM) || |
|
(data->config4 & CONFIG4_PINFUNC) == 0x1) |
|
data->has_voltage |= (1 << 0); /* in0 */ |
|
} |
|
|
|
/* |
|
* On the ADT7476, the +12V input pin may instead be used as VID5, |
|
* and VID pins may alternatively be used as GPIO |
|
*/ |
|
if (id->driver_data == adt7476) { |
|
u8 vid = adt7475_read(REG_VID); |
|
if (!(vid & VID_VIDSEL)) |
|
data->has_voltage |= (1 << 4); /* in4 */ |
|
|
|
data->has_vid = !(adt7475_read(REG_CONFIG5) & CONFIG5_VIDGPIO); |
|
} |
|
|
|
/* Voltage attenuators can be bypassed, globally or individually */ |
|
data->config2 = adt7475_read(REG_CONFIG2); |
|
ret = load_attenuators(client, chip, data); |
|
if (ret) |
|
dev_warn(&client->dev, "Error configuring attenuator bypass\n"); |
|
|
|
if (data->config2 & CONFIG2_ATTN) { |
|
data->bypass_attn = (0x3 << 3) | 0x3; |
|
} else { |
|
data->bypass_attn = ((data->config4 & CONFIG4_ATTN_IN10) >> 4) | |
|
((data->config4 & CONFIG4_ATTN_IN43) >> 3); |
|
} |
|
data->bypass_attn &= data->has_voltage; |
|
|
|
/* |
|
* Call adt7475_read_pwm for all pwm's as this will reprogram any |
|
* pwm's which are disabled to manual mode with 0% duty cycle |
|
*/ |
|
for (i = 0; i < ADT7475_PWM_COUNT; i++) |
|
adt7475_read_pwm(client, i); |
|
|
|
ret = adt7475_set_pwm_polarity(client); |
|
if (ret && ret != -EINVAL) |
|
dev_warn(&client->dev, "Error configuring pwm polarity\n"); |
|
|
|
/* Start monitoring */ |
|
switch (chip) { |
|
case adt7475: |
|
case adt7476: |
|
i2c_smbus_write_byte_data(client, REG_CONFIG1, |
|
adt7475_read(REG_CONFIG1) | 0x01); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
data->groups[group_num++] = &adt7475_attr_group; |
|
|
|
/* Features that can be disabled individually */ |
|
if (data->has_fan4) { |
|
data->groups[group_num++] = &fan4_attr_group; |
|
} |
|
if (data->has_pwm2) { |
|
data->groups[group_num++] = &pwm2_attr_group; |
|
} |
|
if (data->has_voltage & (1 << 0)) { |
|
data->groups[group_num++] = &in0_attr_group; |
|
} |
|
if (data->has_voltage & (1 << 3)) { |
|
data->groups[group_num++] = &in3_attr_group; |
|
} |
|
if (data->has_voltage & (1 << 4)) { |
|
data->groups[group_num++] = &in4_attr_group; |
|
} |
|
if (data->has_voltage & (1 << 5)) { |
|
data->groups[group_num++] = &in5_attr_group; |
|
} |
|
if (data->has_vid) { |
|
data->vrm = vid_which_vrm(); |
|
data->groups[group_num] = &vid_attr_group; |
|
} |
|
|
|
/* register device with all the acquired attributes */ |
|
hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, |
|
client->name, data, |
|
data->groups); |
|
|
|
if (IS_ERR(hwmon_dev)) { |
|
ret = PTR_ERR(hwmon_dev); |
|
return ret; |
|
} |
|
|
|
dev_info(&client->dev, "%s device, revision %d\n", |
|
names[id->driver_data], revision); |
|
if ((data->has_voltage & 0x11) || data->has_fan4 || data->has_pwm2) |
|
dev_info(&client->dev, "Optional features:%s%s%s%s%s\n", |
|
(data->has_voltage & (1 << 0)) ? " in0" : "", |
|
(data->has_voltage & (1 << 4)) ? " in4" : "", |
|
data->has_fan4 ? " fan4" : "", |
|
data->has_pwm2 ? " pwm2" : "", |
|
data->has_vid ? " vid" : ""); |
|
if (data->bypass_attn) |
|
dev_info(&client->dev, "Bypassing attenuators on:%s%s%s%s\n", |
|
(data->bypass_attn & (1 << 0)) ? " in0" : "", |
|
(data->bypass_attn & (1 << 1)) ? " in1" : "", |
|
(data->bypass_attn & (1 << 3)) ? " in3" : "", |
|
(data->bypass_attn & (1 << 4)) ? " in4" : ""); |
|
|
|
/* Limits and settings, should never change update more than once */ |
|
ret = adt7475_update_limits(client); |
|
if (ret) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
static struct i2c_driver adt7475_driver = { |
|
.class = I2C_CLASS_HWMON, |
|
.driver = { |
|
.name = "adt7475", |
|
.of_match_table = of_match_ptr(adt7475_of_match), |
|
}, |
|
.probe_new = adt7475_probe, |
|
.id_table = adt7475_id, |
|
.detect = adt7475_detect, |
|
.address_list = normal_i2c, |
|
}; |
|
|
|
static void adt7475_read_hystersis(struct i2c_client *client) |
|
{ |
|
struct adt7475_data *data = i2c_get_clientdata(client); |
|
|
|
data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS); |
|
data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0]; |
|
data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS); |
|
} |
|
|
|
static void adt7475_read_pwm(struct i2c_client *client, int index) |
|
{ |
|
struct adt7475_data *data = i2c_get_clientdata(client); |
|
unsigned int v; |
|
|
|
data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index)); |
|
|
|
/* |
|
* Figure out the internal value for pwmctrl and pwmchan |
|
* based on the current settings |
|
*/ |
|
v = (data->pwm[CONTROL][index] >> 5) & 7; |
|
|
|
if (v == 3) |
|
data->pwmctl[index] = 0; |
|
else if (v == 7) |
|
data->pwmctl[index] = 1; |
|
else if (v == 4) { |
|
/* |
|
* The fan is disabled - we don't want to |
|
* support that, so change to manual mode and |
|
* set the duty cycle to 0 instead |
|
*/ |
|
data->pwm[INPUT][index] = 0; |
|
data->pwm[CONTROL][index] &= ~0xE0; |
|
data->pwm[CONTROL][index] |= (7 << 5); |
|
|
|
i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
|
data->pwm[INPUT][index]); |
|
|
|
i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
|
data->pwm[CONTROL][index]); |
|
|
|
data->pwmctl[index] = 1; |
|
} else { |
|
data->pwmctl[index] = 2; |
|
|
|
switch (v) { |
|
case 0: |
|
data->pwmchan[index] = 1; |
|
break; |
|
case 1: |
|
data->pwmchan[index] = 2; |
|
break; |
|
case 2: |
|
data->pwmchan[index] = 4; |
|
break; |
|
case 5: |
|
data->pwmchan[index] = 6; |
|
break; |
|
case 6: |
|
data->pwmchan[index] = 7; |
|
break; |
|
} |
|
} |
|
} |
|
|
|
static int adt7475_update_measure(struct device *dev) |
|
{ |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
u16 ext; |
|
int i; |
|
int ret; |
|
|
|
ret = adt7475_read(REG_STATUS2); |
|
if (ret < 0) |
|
return ret; |
|
data->alarms = ret << 8; |
|
|
|
ret = adt7475_read(REG_STATUS1); |
|
if (ret < 0) |
|
return ret; |
|
data->alarms |= ret; |
|
|
|
ret = adt7475_read(REG_EXTEND2); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ext = (ret << 8); |
|
|
|
ret = adt7475_read(REG_EXTEND1); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ext |= ret; |
|
|
|
for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
|
if (!(data->has_voltage & (1 << i))) |
|
continue; |
|
ret = adt7475_read(VOLTAGE_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->voltage[INPUT][i] = |
|
(ret << 2) | |
|
((ext >> (i * 2)) & 3); |
|
} |
|
|
|
for (i = 0; i < ADT7475_TEMP_COUNT; i++) { |
|
ret = adt7475_read(TEMP_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->temp[INPUT][i] = |
|
(ret << 2) | |
|
((ext >> ((i + 5) * 2)) & 3); |
|
} |
|
|
|
if (data->has_voltage & (1 << 5)) { |
|
ret = adt7475_read(REG_STATUS4); |
|
if (ret < 0) |
|
return ret; |
|
data->alarms |= ret << 24; |
|
|
|
ret = adt7475_read(REG_EXTEND3); |
|
if (ret < 0) |
|
return ret; |
|
ext = ret; |
|
|
|
ret = adt7475_read(REG_VTT); |
|
if (ret < 0) |
|
return ret; |
|
data->voltage[INPUT][5] = ret << 2 | |
|
((ext >> 4) & 3); |
|
} |
|
|
|
for (i = 0; i < ADT7475_TACH_COUNT; i++) { |
|
if (i == 3 && !data->has_fan4) |
|
continue; |
|
ret = adt7475_read_word(client, TACH_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->tach[INPUT][i] = ret; |
|
} |
|
|
|
/* Updated by hw when in auto mode */ |
|
for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
|
if (i == 1 && !data->has_pwm2) |
|
continue; |
|
ret = adt7475_read(PWM_REG(i)); |
|
if (ret < 0) |
|
return ret; |
|
data->pwm[INPUT][i] = ret; |
|
} |
|
|
|
if (data->has_vid) { |
|
ret = adt7475_read(REG_VID); |
|
if (ret < 0) |
|
return ret; |
|
data->vid = ret & 0x3f; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static struct adt7475_data *adt7475_update_device(struct device *dev) |
|
{ |
|
struct adt7475_data *data = dev_get_drvdata(dev); |
|
int ret; |
|
|
|
mutex_lock(&data->lock); |
|
|
|
/* Measurement values update every 2 seconds */ |
|
if (time_after(jiffies, data->measure_updated + HZ * 2) || |
|
!data->valid) { |
|
ret = adt7475_update_measure(dev); |
|
if (ret) { |
|
data->valid = false; |
|
mutex_unlock(&data->lock); |
|
return ERR_PTR(ret); |
|
} |
|
data->measure_updated = jiffies; |
|
data->valid = true; |
|
} |
|
|
|
mutex_unlock(&data->lock); |
|
|
|
return data; |
|
} |
|
|
|
module_i2c_driver(adt7475_driver); |
|
|
|
MODULE_AUTHOR("Advanced Micro Devices, Inc"); |
|
MODULE_DESCRIPTION("adt7475 driver"); |
|
MODULE_LICENSE("GPL");
|
|
|