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1713 lines
49 KiB
1713 lines
49 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* lm85.c - Part of lm_sensors, Linux kernel modules for hardware |
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* monitoring |
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* Copyright (c) 1998, 1999 Frodo Looijaard <[email protected]> |
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* Copyright (c) 2002, 2003 Philip Pokorny <[email protected]> |
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* Copyright (c) 2003 Margit Schubert-While <[email protected]> |
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* Copyright (c) 2004 Justin Thiessen <[email protected]> |
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* Copyright (C) 2007--2014 Jean Delvare <[email protected]> |
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* |
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* Chip details at <http://www.national.com/ds/LM/LM85.pdf> |
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*/ |
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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/jiffies.h> |
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#include <linux/i2c.h> |
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#include <linux/hwmon.h> |
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#include <linux/hwmon-vid.h> |
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#include <linux/hwmon-sysfs.h> |
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#include <linux/err.h> |
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#include <linux/mutex.h> |
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#include <linux/util_macros.h> |
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/* Addresses to scan */ |
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static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
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enum chips { |
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lm85, lm96000, |
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adm1027, adt7463, adt7468, |
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emc6d100, emc6d102, emc6d103, emc6d103s |
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}; |
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|
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/* The LM85 registers */ |
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|
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#define LM85_REG_IN(nr) (0x20 + (nr)) |
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#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) |
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#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) |
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#define LM85_REG_TEMP(nr) (0x25 + (nr)) |
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#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) |
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#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) |
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/* Fan speeds are LSB, MSB (2 bytes) */ |
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#define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
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#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) |
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#define LM85_REG_PWM(nr) (0x30 + (nr)) |
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#define LM85_REG_COMPANY 0x3e |
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#define LM85_REG_VERSTEP 0x3f |
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#define ADT7468_REG_CFG5 0x7c |
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#define ADT7468_OFF64 (1 << 0) |
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#define ADT7468_HFPWM (1 << 1) |
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#define IS_ADT7468_OFF64(data) \ |
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((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) |
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#define IS_ADT7468_HFPWM(data) \ |
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((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM)) |
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|
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/* These are the recognized values for the above regs */ |
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#define LM85_COMPANY_NATIONAL 0x01 |
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#define LM85_COMPANY_ANALOG_DEV 0x41 |
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#define LM85_COMPANY_SMSC 0x5c |
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#define LM85_VERSTEP_LM85C 0x60 |
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#define LM85_VERSTEP_LM85B 0x62 |
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#define LM85_VERSTEP_LM96000_1 0x68 |
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#define LM85_VERSTEP_LM96000_2 0x69 |
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#define LM85_VERSTEP_ADM1027 0x60 |
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#define LM85_VERSTEP_ADT7463 0x62 |
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#define LM85_VERSTEP_ADT7463C 0x6A |
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#define LM85_VERSTEP_ADT7468_1 0x71 |
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#define LM85_VERSTEP_ADT7468_2 0x72 |
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#define LM85_VERSTEP_EMC6D100_A0 0x60 |
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#define LM85_VERSTEP_EMC6D100_A1 0x61 |
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#define LM85_VERSTEP_EMC6D102 0x65 |
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#define LM85_VERSTEP_EMC6D103_A0 0x68 |
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#define LM85_VERSTEP_EMC6D103_A1 0x69 |
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#define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */ |
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#define LM85_REG_CONFIG 0x40 |
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#define LM85_REG_ALARM1 0x41 |
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#define LM85_REG_ALARM2 0x42 |
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#define LM85_REG_VID 0x43 |
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/* Automated FAN control */ |
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#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) |
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#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) |
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#define LM85_REG_AFAN_SPIKE1 0x62 |
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#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) |
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#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) |
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#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) |
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#define LM85_REG_AFAN_HYST1 0x6d |
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#define LM85_REG_AFAN_HYST2 0x6e |
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#define ADM1027_REG_EXTEND_ADC1 0x76 |
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#define ADM1027_REG_EXTEND_ADC2 0x77 |
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#define EMC6D100_REG_ALARM3 0x7d |
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/* IN5, IN6 and IN7 */ |
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#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
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#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) |
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#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) |
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#define EMC6D102_REG_EXTEND_ADC1 0x85 |
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#define EMC6D102_REG_EXTEND_ADC2 0x86 |
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#define EMC6D102_REG_EXTEND_ADC3 0x87 |
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#define EMC6D102_REG_EXTEND_ADC4 0x88 |
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/* |
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* Conversions. Rounding and limit checking is only done on the TO_REG |
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* variants. Note that you should be a bit careful with which arguments |
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* these macros are called: arguments may be evaluated more than once. |
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*/ |
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/* IN are scaled according to built-in resistors */ |
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static const int lm85_scaling[] = { /* .001 Volts */ |
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2500, 2250, 3300, 5000, 12000, |
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3300, 1500, 1800 /*EMC6D100*/ |
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}; |
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#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) |
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#define INS_TO_REG(n, val) \ |
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SCALE(clamp_val(val, 0, 255 * lm85_scaling[n] / 192), \ |
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lm85_scaling[n], 192) |
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#define INSEXT_FROM_REG(n, val, ext) \ |
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SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
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#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
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/* FAN speed is measured using 90kHz clock */ |
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static inline u16 FAN_TO_REG(unsigned long val) |
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{ |
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if (!val) |
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return 0xffff; |
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return clamp_val(5400000 / val, 1, 0xfffe); |
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} |
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#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
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5400000 / (val)) |
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/* Temperature is reported in .001 degC increments */ |
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#define TEMP_TO_REG(val) \ |
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DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000) |
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#define TEMPEXT_FROM_REG(val, ext) \ |
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SCALE(((val) << 4) + (ext), 16, 1000) |
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#define TEMP_FROM_REG(val) ((val) * 1000) |
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#define PWM_TO_REG(val) clamp_val(val, 0, 255) |
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#define PWM_FROM_REG(val) (val) |
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/* |
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* ZONEs have the following parameters: |
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* Limit (low) temp, 1. degC |
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* Hysteresis (below limit), 1. degC (0-15) |
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* Range of speed control, .1 degC (2-80) |
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* Critical (high) temp, 1. degC |
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* |
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* FAN PWMs have the following parameters: |
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* Reference Zone, 1, 2, 3, etc. |
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* Spinup time, .05 sec |
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* PWM value at limit/low temp, 1 count |
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* PWM Frequency, 1. Hz |
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* PWM is Min or OFF below limit, flag |
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* Invert PWM output, flag |
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* |
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* Some chips filter the temp, others the fan. |
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* Filter constant (or disabled) .1 seconds |
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*/ |
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/* These are the zone temperature range encodings in .001 degree C */ |
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static const int lm85_range_map[] = { |
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2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
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13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 |
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}; |
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static int RANGE_TO_REG(long range) |
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{ |
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return find_closest(range, lm85_range_map, ARRAY_SIZE(lm85_range_map)); |
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} |
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#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
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/* These are the PWM frequency encodings */ |
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static const int lm85_freq_map[] = { /* 1 Hz */ |
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10, 15, 23, 30, 38, 47, 61, 94 |
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}; |
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static const int lm96000_freq_map[] = { /* 1 Hz */ |
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10, 15, 23, 30, 38, 47, 61, 94, |
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22500, 24000, 25700, 25700, 27700, 27700, 30000, 30000 |
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}; |
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static const int adm1027_freq_map[] = { /* 1 Hz */ |
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11, 15, 22, 29, 35, 44, 59, 88 |
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}; |
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static int FREQ_TO_REG(const int *map, |
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unsigned int map_size, unsigned long freq) |
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{ |
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return find_closest(freq, map, map_size); |
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} |
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static int FREQ_FROM_REG(const int *map, unsigned int map_size, u8 reg) |
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{ |
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return map[reg % map_size]; |
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} |
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/* |
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* Since we can't use strings, I'm abusing these numbers |
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* to stand in for the following meanings: |
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* 1 -- PWM responds to Zone 1 |
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* 2 -- PWM responds to Zone 2 |
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* 3 -- PWM responds to Zone 3 |
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* 23 -- PWM responds to the higher temp of Zone 2 or 3 |
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* 123 -- PWM responds to highest of Zone 1, 2, or 3 |
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* 0 -- PWM is always at 0% (ie, off) |
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* -1 -- PWM is always at 100% |
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* -2 -- PWM responds to manual control |
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*/ |
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static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
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#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] |
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static int ZONE_TO_REG(int zone) |
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{ |
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int i; |
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for (i = 0; i <= 7; ++i) |
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if (zone == lm85_zone_map[i]) |
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break; |
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if (i > 7) /* Not found. */ |
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i = 3; /* Always 100% */ |
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return i << 5; |
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} |
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#define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15) |
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#define HYST_FROM_REG(val) ((val) * 1000) |
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/* |
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* Chip sampling rates |
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* |
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* Some sensors are not updated more frequently than once per second |
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* so it doesn't make sense to read them more often than that. |
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* We cache the results and return the saved data if the driver |
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* is called again before a second has elapsed. |
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* |
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* Also, there is significant configuration data for this chip |
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* given the automatic PWM fan control that is possible. There |
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* are about 47 bytes of config data to only 22 bytes of actual |
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* readings. So, we keep the config data up to date in the cache |
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* when it is written and only sample it once every 1 *minute* |
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*/ |
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#define LM85_DATA_INTERVAL (HZ + HZ / 2) |
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#define LM85_CONFIG_INTERVAL (1 * 60 * HZ) |
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/* |
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* LM85 can automatically adjust fan speeds based on temperature |
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* This structure encapsulates an entire Zone config. There are |
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* three zones (one for each temperature input) on the lm85 |
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*/ |
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struct lm85_zone { |
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s8 limit; /* Low temp limit */ |
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u8 hyst; /* Low limit hysteresis. (0-15) */ |
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u8 range; /* Temp range, encoded */ |
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s8 critical; /* "All fans ON" temp limit */ |
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u8 max_desired; /* |
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* Actual "max" temperature specified. Preserved |
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* to prevent "drift" as other autofan control |
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* values change. |
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*/ |
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}; |
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struct lm85_autofan { |
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u8 config; /* Register value */ |
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u8 min_pwm; /* Minimum PWM value, encoded */ |
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u8 min_off; /* Min PWM or OFF below "limit", flag */ |
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}; |
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/* |
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* For each registered chip, we need to keep some data in memory. |
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* The structure is dynamically allocated. |
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*/ |
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struct lm85_data { |
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struct i2c_client *client; |
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const struct attribute_group *groups[6]; |
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const int *freq_map; |
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unsigned int freq_map_size; |
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enum chips type; |
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bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ |
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struct mutex update_lock; |
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int valid; /* !=0 if following fields are valid */ |
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unsigned long last_reading; /* In jiffies */ |
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unsigned long last_config; /* In jiffies */ |
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u8 in[8]; /* Register value */ |
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u8 in_max[8]; /* Register value */ |
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u8 in_min[8]; /* Register value */ |
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s8 temp[3]; /* Register value */ |
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s8 temp_min[3]; /* Register value */ |
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s8 temp_max[3]; /* Register value */ |
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u16 fan[4]; /* Register value */ |
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u16 fan_min[4]; /* Register value */ |
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u8 pwm[3]; /* Register value */ |
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u8 pwm_freq[3]; /* Register encoding */ |
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u8 temp_ext[3]; /* Decoded values */ |
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u8 in_ext[8]; /* Decoded values */ |
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u8 vid; /* Register value */ |
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u8 vrm; /* VRM version */ |
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u32 alarms; /* Register encoding, combined */ |
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u8 cfg5; /* Config Register 5 on ADT7468 */ |
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struct lm85_autofan autofan[3]; |
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struct lm85_zone zone[3]; |
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}; |
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static int lm85_read_value(struct i2c_client *client, u8 reg) |
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{ |
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int res; |
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|
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/* What size location is it? */ |
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switch (reg) { |
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case LM85_REG_FAN(0): /* Read WORD data */ |
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case LM85_REG_FAN(1): |
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case LM85_REG_FAN(2): |
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case LM85_REG_FAN(3): |
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case LM85_REG_FAN_MIN(0): |
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case LM85_REG_FAN_MIN(1): |
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case LM85_REG_FAN_MIN(2): |
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case LM85_REG_FAN_MIN(3): |
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case LM85_REG_ALARM1: /* Read both bytes at once */ |
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res = i2c_smbus_read_byte_data(client, reg) & 0xff; |
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res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; |
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break; |
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default: /* Read BYTE data */ |
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res = i2c_smbus_read_byte_data(client, reg); |
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break; |
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} |
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return res; |
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} |
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static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
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{ |
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switch (reg) { |
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case LM85_REG_FAN(0): /* Write WORD data */ |
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case LM85_REG_FAN(1): |
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case LM85_REG_FAN(2): |
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case LM85_REG_FAN(3): |
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case LM85_REG_FAN_MIN(0): |
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case LM85_REG_FAN_MIN(1): |
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case LM85_REG_FAN_MIN(2): |
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case LM85_REG_FAN_MIN(3): |
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/* NOTE: ALARM is read only, so not included here */ |
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i2c_smbus_write_byte_data(client, reg, value & 0xff); |
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i2c_smbus_write_byte_data(client, reg + 1, value >> 8); |
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break; |
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default: /* Write BYTE data */ |
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i2c_smbus_write_byte_data(client, reg, value); |
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break; |
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} |
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} |
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static struct lm85_data *lm85_update_device(struct device *dev) |
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{ |
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struct lm85_data *data = dev_get_drvdata(dev); |
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struct i2c_client *client = data->client; |
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int i; |
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mutex_lock(&data->update_lock); |
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if (!data->valid || |
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time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { |
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/* Things that change quickly */ |
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dev_dbg(&client->dev, "Reading sensor values\n"); |
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|
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/* |
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* Have to read extended bits first to "freeze" the |
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* more significant bits that are read later. |
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* There are 2 additional resolution bits per channel and we |
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* have room for 4, so we shift them to the left. |
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*/ |
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if (data->type == adm1027 || data->type == adt7463 || |
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data->type == adt7468) { |
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int ext1 = lm85_read_value(client, |
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ADM1027_REG_EXTEND_ADC1); |
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int ext2 = lm85_read_value(client, |
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ADM1027_REG_EXTEND_ADC2); |
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int val = (ext1 << 8) + ext2; |
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for (i = 0; i <= 4; i++) |
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data->in_ext[i] = |
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((val >> (i * 2)) & 0x03) << 2; |
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|
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for (i = 0; i <= 2; i++) |
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data->temp_ext[i] = |
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(val >> ((i + 4) * 2)) & 0x0c; |
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} |
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data->vid = lm85_read_value(client, LM85_REG_VID); |
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for (i = 0; i <= 3; ++i) { |
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data->in[i] = |
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lm85_read_value(client, LM85_REG_IN(i)); |
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data->fan[i] = |
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lm85_read_value(client, LM85_REG_FAN(i)); |
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} |
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if (!data->has_vid5) |
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data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); |
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if (data->type == adt7468) |
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data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); |
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for (i = 0; i <= 2; ++i) { |
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data->temp[i] = |
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lm85_read_value(client, LM85_REG_TEMP(i)); |
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data->pwm[i] = |
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lm85_read_value(client, LM85_REG_PWM(i)); |
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|
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if (IS_ADT7468_OFF64(data)) |
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data->temp[i] -= 64; |
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} |
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|
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data->alarms = lm85_read_value(client, LM85_REG_ALARM1); |
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|
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if (data->type == emc6d100) { |
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/* Three more voltage sensors */ |
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for (i = 5; i <= 7; ++i) { |
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data->in[i] = lm85_read_value(client, |
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EMC6D100_REG_IN(i)); |
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} |
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/* More alarm bits */ |
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data->alarms |= lm85_read_value(client, |
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EMC6D100_REG_ALARM3) << 16; |
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} else if (data->type == emc6d102 || data->type == emc6d103 || |
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data->type == emc6d103s) { |
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/* |
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* Have to read LSB bits after the MSB ones because |
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* the reading of the MSB bits has frozen the |
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* LSBs (backward from the ADM1027). |
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*/ |
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int ext1 = lm85_read_value(client, |
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EMC6D102_REG_EXTEND_ADC1); |
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int ext2 = lm85_read_value(client, |
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EMC6D102_REG_EXTEND_ADC2); |
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int ext3 = lm85_read_value(client, |
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EMC6D102_REG_EXTEND_ADC3); |
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int ext4 = lm85_read_value(client, |
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EMC6D102_REG_EXTEND_ADC4); |
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data->in_ext[0] = ext3 & 0x0f; |
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data->in_ext[1] = ext4 & 0x0f; |
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data->in_ext[2] = ext4 >> 4; |
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data->in_ext[3] = ext3 >> 4; |
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data->in_ext[4] = ext2 >> 4; |
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|
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data->temp_ext[0] = ext1 & 0x0f; |
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data->temp_ext[1] = ext2 & 0x0f; |
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data->temp_ext[2] = ext1 >> 4; |
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} |
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|
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data->last_reading = jiffies; |
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} /* last_reading */ |
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|
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if (!data->valid || |
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time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { |
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/* Things that don't change often */ |
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dev_dbg(&client->dev, "Reading config values\n"); |
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|
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for (i = 0; i <= 3; ++i) { |
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data->in_min[i] = |
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lm85_read_value(client, LM85_REG_IN_MIN(i)); |
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data->in_max[i] = |
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lm85_read_value(client, LM85_REG_IN_MAX(i)); |
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data->fan_min[i] = |
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lm85_read_value(client, LM85_REG_FAN_MIN(i)); |
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} |
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|
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if (!data->has_vid5) { |
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data->in_min[4] = lm85_read_value(client, |
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LM85_REG_IN_MIN(4)); |
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data->in_max[4] = lm85_read_value(client, |
|
LM85_REG_IN_MAX(4)); |
|
} |
|
|
|
if (data->type == emc6d100) { |
|
for (i = 5; i <= 7; ++i) { |
|
data->in_min[i] = lm85_read_value(client, |
|
EMC6D100_REG_IN_MIN(i)); |
|
data->in_max[i] = lm85_read_value(client, |
|
EMC6D100_REG_IN_MAX(i)); |
|
} |
|
} |
|
|
|
for (i = 0; i <= 2; ++i) { |
|
int val; |
|
|
|
data->temp_min[i] = |
|
lm85_read_value(client, LM85_REG_TEMP_MIN(i)); |
|
data->temp_max[i] = |
|
lm85_read_value(client, LM85_REG_TEMP_MAX(i)); |
|
|
|
data->autofan[i].config = |
|
lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); |
|
val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); |
|
data->pwm_freq[i] = val % data->freq_map_size; |
|
data->zone[i].range = val >> 4; |
|
data->autofan[i].min_pwm = |
|
lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); |
|
data->zone[i].limit = |
|
lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); |
|
data->zone[i].critical = |
|
lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); |
|
|
|
if (IS_ADT7468_OFF64(data)) { |
|
data->temp_min[i] -= 64; |
|
data->temp_max[i] -= 64; |
|
data->zone[i].limit -= 64; |
|
data->zone[i].critical -= 64; |
|
} |
|
} |
|
|
|
if (data->type != emc6d103s) { |
|
i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
|
data->autofan[0].min_off = (i & 0x20) != 0; |
|
data->autofan[1].min_off = (i & 0x40) != 0; |
|
data->autofan[2].min_off = (i & 0x80) != 0; |
|
|
|
i = lm85_read_value(client, LM85_REG_AFAN_HYST1); |
|
data->zone[0].hyst = i >> 4; |
|
data->zone[1].hyst = i & 0x0f; |
|
|
|
i = lm85_read_value(client, LM85_REG_AFAN_HYST2); |
|
data->zone[2].hyst = i >> 4; |
|
} |
|
|
|
data->last_config = jiffies; |
|
} /* last_config */ |
|
|
|
data->valid = 1; |
|
|
|
mutex_unlock(&data->update_lock); |
|
|
|
return data; |
|
} |
|
|
|
/* 4 Fans */ |
|
static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
|
} |
|
|
|
static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
|
} |
|
|
|
static ssize_t fan_min_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned long val; |
|
int err; |
|
|
|
err = kstrtoul(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->fan_min[nr] = FAN_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
|
static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); |
|
static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); |
|
static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); |
|
static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); |
|
static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); |
|
static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); |
|
static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3); |
|
|
|
/* vid, vrm, alarms */ |
|
|
|
static ssize_t cpu0_vid_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
struct lm85_data *data = lm85_update_device(dev); |
|
int vid; |
|
|
|
if (data->has_vid5) { |
|
/* 6-pin VID (VRM 10) */ |
|
vid = vid_from_reg(data->vid & 0x3f, data->vrm); |
|
} else { |
|
/* 5-pin VID (VRM 9) */ |
|
vid = vid_from_reg(data->vid & 0x1f, data->vrm); |
|
} |
|
|
|
return sprintf(buf, "%d\n", vid); |
|
} |
|
|
|
static DEVICE_ATTR_RO(cpu0_vid); |
|
|
|
static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
return sprintf(buf, "%ld\n", (long) data->vrm); |
|
} |
|
|
|
static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
unsigned long val; |
|
int err; |
|
|
|
err = kstrtoul(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
if (val > 255) |
|
return -EINVAL; |
|
|
|
data->vrm = val; |
|
return count; |
|
} |
|
|
|
static DEVICE_ATTR_RW(vrm); |
|
|
|
static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%u\n", data->alarms); |
|
} |
|
|
|
static DEVICE_ATTR_RO(alarms); |
|
|
|
static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0); |
|
static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1); |
|
static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2); |
|
static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); |
|
static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8); |
|
static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 18); |
|
static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 16); |
|
static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 17); |
|
static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4); |
|
static SENSOR_DEVICE_ATTR_RO(temp1_fault, alarm, 14); |
|
static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 5); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 6); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 15); |
|
static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 10); |
|
static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 11); |
|
static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 12); |
|
static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, 13); |
|
|
|
/* pwm */ |
|
|
|
static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
|
} |
|
|
|
static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned long val; |
|
int err; |
|
|
|
err = kstrtoul(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->pwm[nr] = PWM_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t pwm_enable_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
int pwm_zone, enable; |
|
|
|
pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); |
|
switch (pwm_zone) { |
|
case -1: /* PWM is always at 100% */ |
|
enable = 0; |
|
break; |
|
case 0: /* PWM is always at 0% */ |
|
case -2: /* PWM responds to manual control */ |
|
enable = 1; |
|
break; |
|
default: /* PWM in automatic mode */ |
|
enable = 2; |
|
} |
|
return sprintf(buf, "%d\n", enable); |
|
} |
|
|
|
static ssize_t pwm_enable_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
u8 config; |
|
unsigned long val; |
|
int err; |
|
|
|
err = kstrtoul(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
switch (val) { |
|
case 0: |
|
config = 3; |
|
break; |
|
case 1: |
|
config = 7; |
|
break; |
|
case 2: |
|
/* |
|
* Here we have to choose arbitrarily one of the 5 possible |
|
* configurations; I go for the safest |
|
*/ |
|
config = 6; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
mutex_lock(&data->update_lock); |
|
data->autofan[nr].config = lm85_read_value(client, |
|
LM85_REG_AFAN_CONFIG(nr)); |
|
data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) |
|
| (config << 5); |
|
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
|
data->autofan[nr].config); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t pwm_freq_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
int freq; |
|
|
|
if (IS_ADT7468_HFPWM(data)) |
|
freq = 22500; |
|
else |
|
freq = FREQ_FROM_REG(data->freq_map, data->freq_map_size, |
|
data->pwm_freq[nr]); |
|
|
|
return sprintf(buf, "%d\n", freq); |
|
} |
|
|
|
static ssize_t pwm_freq_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned long val; |
|
int err; |
|
|
|
err = kstrtoul(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
/* |
|
* The ADT7468 has a special high-frequency PWM output mode, |
|
* where all PWM outputs are driven by a 22.5 kHz clock. |
|
* This might confuse the user, but there's not much we can do. |
|
*/ |
|
if (data->type == adt7468 && val >= 11300) { /* High freq. mode */ |
|
data->cfg5 &= ~ADT7468_HFPWM; |
|
lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); |
|
} else { /* Low freq. mode */ |
|
data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, |
|
data->freq_map_size, val); |
|
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
|
(data->zone[nr].range << 4) |
|
| data->pwm_freq[nr]); |
|
if (data->type == adt7468) { |
|
data->cfg5 |= ADT7468_HFPWM; |
|
lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); |
|
} |
|
} |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); |
|
static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0); |
|
static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0); |
|
static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); |
|
static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1); |
|
static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1); |
|
static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2); |
|
static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_enable, 2); |
|
static SENSOR_DEVICE_ATTR_RW(pwm3_freq, pwm_freq, 2); |
|
|
|
/* Voltages */ |
|
|
|
static ssize_t in_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
|
data->in_ext[nr])); |
|
} |
|
|
|
static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
|
} |
|
|
|
static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->in_min[nr] = INS_TO_REG(nr, val); |
|
lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
|
} |
|
|
|
static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->in_max[nr] = INS_TO_REG(nr, val); |
|
lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); |
|
static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); |
|
static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); |
|
static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); |
|
static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); |
|
static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); |
|
static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); |
|
static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); |
|
static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); |
|
static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); |
|
static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); |
|
static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); |
|
static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); |
|
static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); |
|
static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); |
|
static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5); |
|
static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5); |
|
static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5); |
|
static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6); |
|
static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6); |
|
static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6); |
|
static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7); |
|
static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7); |
|
static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7); |
|
|
|
/* Temps */ |
|
|
|
static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
|
data->temp_ext[nr])); |
|
} |
|
|
|
static ssize_t temp_min_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
|
} |
|
|
|
static ssize_t temp_min_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
if (IS_ADT7468_OFF64(data)) |
|
val += 64; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->temp_min[nr] = TEMP_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t temp_max_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
|
} |
|
|
|
static ssize_t temp_max_store(struct device *dev, |
|
struct device_attribute *attr, const char *buf, |
|
size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
if (IS_ADT7468_OFF64(data)) |
|
val += 64; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->temp_max[nr] = TEMP_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
|
static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); |
|
static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); |
|
static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
|
static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); |
|
static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); |
|
static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
|
static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); |
|
static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); |
|
|
|
/* Automatic PWM control */ |
|
|
|
static ssize_t pwm_auto_channels_show(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
|
} |
|
|
|
static ssize_t pwm_auto_channels_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
|
| ZONE_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
|
data->autofan[nr].config); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t pwm_auto_pwm_min_show(struct device *dev, |
|
struct device_attribute *attr, char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
|
} |
|
|
|
static ssize_t pwm_auto_pwm_min_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
unsigned long val; |
|
int err; |
|
|
|
err = kstrtoul(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->autofan[nr].min_pwm = PWM_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), |
|
data->autofan[nr].min_pwm); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t pwm_auto_pwm_minctl_show(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
|
} |
|
|
|
static ssize_t pwm_auto_pwm_minctl_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
u8 tmp; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->autofan[nr].min_off = val; |
|
tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
|
tmp &= ~(0x20 << nr); |
|
if (data->autofan[nr].min_off) |
|
tmp |= 0x20 << nr; |
|
lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels, pwm_auto_channels, 0); |
|
static SENSOR_DEVICE_ATTR_RW(pwm1_auto_pwm_min, pwm_auto_pwm_min, 0); |
|
static SENSOR_DEVICE_ATTR_RW(pwm1_auto_pwm_minctl, pwm_auto_pwm_minctl, 0); |
|
static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels, pwm_auto_channels, 1); |
|
static SENSOR_DEVICE_ATTR_RW(pwm2_auto_pwm_min, pwm_auto_pwm_min, 1); |
|
static SENSOR_DEVICE_ATTR_RW(pwm2_auto_pwm_minctl, pwm_auto_pwm_minctl, 1); |
|
static SENSOR_DEVICE_ATTR_RW(pwm3_auto_channels, pwm_auto_channels, 2); |
|
static SENSOR_DEVICE_ATTR_RW(pwm3_auto_pwm_min, pwm_auto_pwm_min, 2); |
|
static SENSOR_DEVICE_ATTR_RW(pwm3_auto_pwm_minctl, pwm_auto_pwm_minctl, 2); |
|
|
|
/* Temperature settings for automatic PWM control */ |
|
|
|
static ssize_t temp_auto_temp_off_show(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
|
HYST_FROM_REG(data->zone[nr].hyst)); |
|
} |
|
|
|
static ssize_t temp_auto_temp_off_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
int min; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
min = TEMP_FROM_REG(data->zone[nr].limit); |
|
data->zone[nr].hyst = HYST_TO_REG(min - val); |
|
if (nr == 0 || nr == 1) { |
|
lm85_write_value(client, LM85_REG_AFAN_HYST1, |
|
(data->zone[0].hyst << 4) |
|
| data->zone[1].hyst); |
|
} else { |
|
lm85_write_value(client, LM85_REG_AFAN_HYST2, |
|
(data->zone[2].hyst << 4)); |
|
} |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t temp_auto_temp_min_show(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
|
} |
|
|
|
static ssize_t temp_auto_temp_min_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->zone[nr].limit = TEMP_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), |
|
data->zone[nr].limit); |
|
|
|
/* Update temp_auto_max and temp_auto_range */ |
|
data->zone[nr].range = RANGE_TO_REG( |
|
TEMP_FROM_REG(data->zone[nr].max_desired) - |
|
TEMP_FROM_REG(data->zone[nr].limit)); |
|
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
|
((data->zone[nr].range & 0x0f) << 4) |
|
| data->pwm_freq[nr]); |
|
|
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t temp_auto_temp_max_show(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
|
RANGE_FROM_REG(data->zone[nr].range)); |
|
} |
|
|
|
static ssize_t temp_auto_temp_max_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
int min; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
min = TEMP_FROM_REG(data->zone[nr].limit); |
|
data->zone[nr].max_desired = TEMP_TO_REG(val); |
|
data->zone[nr].range = RANGE_TO_REG( |
|
val - min); |
|
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
|
((data->zone[nr].range & 0x0f) << 4) |
|
| data->pwm_freq[nr]); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static ssize_t temp_auto_temp_crit_show(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = lm85_update_device(dev); |
|
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
|
} |
|
|
|
static ssize_t temp_auto_temp_crit_store(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
int nr = to_sensor_dev_attr(attr)->index; |
|
struct lm85_data *data = dev_get_drvdata(dev); |
|
struct i2c_client *client = data->client; |
|
long val; |
|
int err; |
|
|
|
err = kstrtol(buf, 10, &val); |
|
if (err) |
|
return err; |
|
|
|
mutex_lock(&data->update_lock); |
|
data->zone[nr].critical = TEMP_TO_REG(val); |
|
lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), |
|
data->zone[nr].critical); |
|
mutex_unlock(&data->update_lock); |
|
return count; |
|
} |
|
|
|
static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_off, temp_auto_temp_off, 0); |
|
static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_min, temp_auto_temp_min, 0); |
|
static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_max, temp_auto_temp_max, 0); |
|
static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_crit, temp_auto_temp_crit, 0); |
|
static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_off, temp_auto_temp_off, 1); |
|
static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_min, temp_auto_temp_min, 1); |
|
static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_max, temp_auto_temp_max, 1); |
|
static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_crit, temp_auto_temp_crit, 1); |
|
static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_off, temp_auto_temp_off, 2); |
|
static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_min, temp_auto_temp_min, 2); |
|
static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_max, temp_auto_temp_max, 2); |
|
static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_crit, temp_auto_temp_crit, 2); |
|
|
|
static struct attribute *lm85_attributes[] = { |
|
&sensor_dev_attr_fan1_input.dev_attr.attr, |
|
&sensor_dev_attr_fan2_input.dev_attr.attr, |
|
&sensor_dev_attr_fan3_input.dev_attr.attr, |
|
&sensor_dev_attr_fan4_input.dev_attr.attr, |
|
&sensor_dev_attr_fan1_min.dev_attr.attr, |
|
&sensor_dev_attr_fan2_min.dev_attr.attr, |
|
&sensor_dev_attr_fan3_min.dev_attr.attr, |
|
&sensor_dev_attr_fan4_min.dev_attr.attr, |
|
&sensor_dev_attr_fan1_alarm.dev_attr.attr, |
|
&sensor_dev_attr_fan2_alarm.dev_attr.attr, |
|
&sensor_dev_attr_fan3_alarm.dev_attr.attr, |
|
&sensor_dev_attr_fan4_alarm.dev_attr.attr, |
|
|
|
&sensor_dev_attr_pwm1.dev_attr.attr, |
|
&sensor_dev_attr_pwm2.dev_attr.attr, |
|
&sensor_dev_attr_pwm3.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_enable.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_enable.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_freq.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_freq.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_freq.dev_attr.attr, |
|
|
|
&sensor_dev_attr_in0_input.dev_attr.attr, |
|
&sensor_dev_attr_in1_input.dev_attr.attr, |
|
&sensor_dev_attr_in2_input.dev_attr.attr, |
|
&sensor_dev_attr_in3_input.dev_attr.attr, |
|
&sensor_dev_attr_in0_min.dev_attr.attr, |
|
&sensor_dev_attr_in1_min.dev_attr.attr, |
|
&sensor_dev_attr_in2_min.dev_attr.attr, |
|
&sensor_dev_attr_in3_min.dev_attr.attr, |
|
&sensor_dev_attr_in0_max.dev_attr.attr, |
|
&sensor_dev_attr_in1_max.dev_attr.attr, |
|
&sensor_dev_attr_in2_max.dev_attr.attr, |
|
&sensor_dev_attr_in3_max.dev_attr.attr, |
|
&sensor_dev_attr_in0_alarm.dev_attr.attr, |
|
&sensor_dev_attr_in1_alarm.dev_attr.attr, |
|
&sensor_dev_attr_in2_alarm.dev_attr.attr, |
|
&sensor_dev_attr_in3_alarm.dev_attr.attr, |
|
|
|
&sensor_dev_attr_temp1_input.dev_attr.attr, |
|
&sensor_dev_attr_temp2_input.dev_attr.attr, |
|
&sensor_dev_attr_temp3_input.dev_attr.attr, |
|
&sensor_dev_attr_temp1_min.dev_attr.attr, |
|
&sensor_dev_attr_temp2_min.dev_attr.attr, |
|
&sensor_dev_attr_temp3_min.dev_attr.attr, |
|
&sensor_dev_attr_temp1_max.dev_attr.attr, |
|
&sensor_dev_attr_temp2_max.dev_attr.attr, |
|
&sensor_dev_attr_temp3_max.dev_attr.attr, |
|
&sensor_dev_attr_temp1_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp2_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp3_alarm.dev_attr.attr, |
|
&sensor_dev_attr_temp1_fault.dev_attr.attr, |
|
&sensor_dev_attr_temp3_fault.dev_attr.attr, |
|
|
|
&sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, |
|
&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, |
|
|
|
&sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, |
|
&sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, |
|
&sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, |
|
&sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, |
|
&sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, |
|
&sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, |
|
&sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, |
|
&sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, |
|
|
|
&dev_attr_vrm.attr, |
|
&dev_attr_cpu0_vid.attr, |
|
&dev_attr_alarms.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group lm85_group = { |
|
.attrs = lm85_attributes, |
|
}; |
|
|
|
static struct attribute *lm85_attributes_minctl[] = { |
|
&sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, |
|
&sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, |
|
&sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group lm85_group_minctl = { |
|
.attrs = lm85_attributes_minctl, |
|
}; |
|
|
|
static struct attribute *lm85_attributes_temp_off[] = { |
|
&sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, |
|
&sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, |
|
&sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group lm85_group_temp_off = { |
|
.attrs = lm85_attributes_temp_off, |
|
}; |
|
|
|
static struct attribute *lm85_attributes_in4[] = { |
|
&sensor_dev_attr_in4_input.dev_attr.attr, |
|
&sensor_dev_attr_in4_min.dev_attr.attr, |
|
&sensor_dev_attr_in4_max.dev_attr.attr, |
|
&sensor_dev_attr_in4_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group lm85_group_in4 = { |
|
.attrs = lm85_attributes_in4, |
|
}; |
|
|
|
static struct attribute *lm85_attributes_in567[] = { |
|
&sensor_dev_attr_in5_input.dev_attr.attr, |
|
&sensor_dev_attr_in6_input.dev_attr.attr, |
|
&sensor_dev_attr_in7_input.dev_attr.attr, |
|
&sensor_dev_attr_in5_min.dev_attr.attr, |
|
&sensor_dev_attr_in6_min.dev_attr.attr, |
|
&sensor_dev_attr_in7_min.dev_attr.attr, |
|
&sensor_dev_attr_in5_max.dev_attr.attr, |
|
&sensor_dev_attr_in6_max.dev_attr.attr, |
|
&sensor_dev_attr_in7_max.dev_attr.attr, |
|
&sensor_dev_attr_in5_alarm.dev_attr.attr, |
|
&sensor_dev_attr_in6_alarm.dev_attr.attr, |
|
&sensor_dev_attr_in7_alarm.dev_attr.attr, |
|
NULL |
|
}; |
|
|
|
static const struct attribute_group lm85_group_in567 = { |
|
.attrs = lm85_attributes_in567, |
|
}; |
|
|
|
static void lm85_init_client(struct i2c_client *client) |
|
{ |
|
int value; |
|
|
|
/* Start monitoring if needed */ |
|
value = lm85_read_value(client, LM85_REG_CONFIG); |
|
if (!(value & 0x01)) { |
|
dev_info(&client->dev, "Starting monitoring\n"); |
|
lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); |
|
} |
|
|
|
/* Warn about unusual configuration bits */ |
|
if (value & 0x02) |
|
dev_warn(&client->dev, "Device configuration is locked\n"); |
|
if (!(value & 0x04)) |
|
dev_warn(&client->dev, "Device is not ready\n"); |
|
} |
|
|
|
static int lm85_is_fake(struct i2c_client *client) |
|
{ |
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/* |
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* Differenciate between real LM96000 and Winbond WPCD377I. The latter |
|
* emulate the former except that it has no hardware monitoring function |
|
* so the readings are always 0. |
|
*/ |
|
int i; |
|
u8 in_temp, fan; |
|
|
|
for (i = 0; i < 8; i++) { |
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in_temp = i2c_smbus_read_byte_data(client, 0x20 + i); |
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fan = i2c_smbus_read_byte_data(client, 0x28 + i); |
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if (in_temp != 0x00 || fan != 0xff) |
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return 0; |
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} |
|
|
|
return 1; |
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} |
|
|
|
/* Return 0 if detection is successful, -ENODEV otherwise */ |
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static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
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{ |
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struct i2c_adapter *adapter = client->adapter; |
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int address = client->addr; |
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const char *type_name = NULL; |
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int company, verstep; |
|
|
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if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
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/* We need to be able to do byte I/O */ |
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return -ENODEV; |
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} |
|
|
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/* Determine the chip type */ |
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company = lm85_read_value(client, LM85_REG_COMPANY); |
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verstep = lm85_read_value(client, LM85_REG_VERSTEP); |
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|
|
dev_dbg(&adapter->dev, |
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"Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", |
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address, company, verstep); |
|
|
|
if (company == LM85_COMPANY_NATIONAL) { |
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switch (verstep) { |
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case LM85_VERSTEP_LM85C: |
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type_name = "lm85c"; |
|
break; |
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case LM85_VERSTEP_LM85B: |
|
type_name = "lm85b"; |
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break; |
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case LM85_VERSTEP_LM96000_1: |
|
case LM85_VERSTEP_LM96000_2: |
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/* Check for Winbond WPCD377I */ |
|
if (lm85_is_fake(client)) { |
|
dev_dbg(&adapter->dev, |
|
"Found Winbond WPCD377I, ignoring\n"); |
|
return -ENODEV; |
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} |
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type_name = "lm96000"; |
|
break; |
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} |
|
} else if (company == LM85_COMPANY_ANALOG_DEV) { |
|
switch (verstep) { |
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case LM85_VERSTEP_ADM1027: |
|
type_name = "adm1027"; |
|
break; |
|
case LM85_VERSTEP_ADT7463: |
|
case LM85_VERSTEP_ADT7463C: |
|
type_name = "adt7463"; |
|
break; |
|
case LM85_VERSTEP_ADT7468_1: |
|
case LM85_VERSTEP_ADT7468_2: |
|
type_name = "adt7468"; |
|
break; |
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} |
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} else if (company == LM85_COMPANY_SMSC) { |
|
switch (verstep) { |
|
case LM85_VERSTEP_EMC6D100_A0: |
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case LM85_VERSTEP_EMC6D100_A1: |
|
/* Note: we can't tell a '100 from a '101 */ |
|
type_name = "emc6d100"; |
|
break; |
|
case LM85_VERSTEP_EMC6D102: |
|
type_name = "emc6d102"; |
|
break; |
|
case LM85_VERSTEP_EMC6D103_A0: |
|
case LM85_VERSTEP_EMC6D103_A1: |
|
type_name = "emc6d103"; |
|
break; |
|
case LM85_VERSTEP_EMC6D103S: |
|
type_name = "emc6d103s"; |
|
break; |
|
} |
|
} |
|
|
|
if (!type_name) |
|
return -ENODEV; |
|
|
|
strlcpy(info->type, type_name, I2C_NAME_SIZE); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct i2c_device_id lm85_id[]; |
|
|
|
static int lm85_probe(struct i2c_client *client) |
|
{ |
|
struct device *dev = &client->dev; |
|
struct device *hwmon_dev; |
|
struct lm85_data *data; |
|
int idx = 0; |
|
|
|
data = devm_kzalloc(dev, sizeof(struct lm85_data), GFP_KERNEL); |
|
if (!data) |
|
return -ENOMEM; |
|
|
|
data->client = client; |
|
if (client->dev.of_node) |
|
data->type = (enum chips)of_device_get_match_data(&client->dev); |
|
else |
|
data->type = i2c_match_id(lm85_id, client)->driver_data; |
|
mutex_init(&data->update_lock); |
|
|
|
/* Fill in the chip specific driver values */ |
|
switch (data->type) { |
|
case adm1027: |
|
case adt7463: |
|
case adt7468: |
|
case emc6d100: |
|
case emc6d102: |
|
case emc6d103: |
|
case emc6d103s: |
|
data->freq_map = adm1027_freq_map; |
|
data->freq_map_size = ARRAY_SIZE(adm1027_freq_map); |
|
break; |
|
case lm96000: |
|
data->freq_map = lm96000_freq_map; |
|
data->freq_map_size = ARRAY_SIZE(lm96000_freq_map); |
|
break; |
|
default: |
|
data->freq_map = lm85_freq_map; |
|
data->freq_map_size = ARRAY_SIZE(lm85_freq_map); |
|
} |
|
|
|
/* Set the VRM version */ |
|
data->vrm = vid_which_vrm(); |
|
|
|
/* Initialize the LM85 chip */ |
|
lm85_init_client(client); |
|
|
|
/* sysfs hooks */ |
|
data->groups[idx++] = &lm85_group; |
|
|
|
/* minctl and temp_off exist on all chips except emc6d103s */ |
|
if (data->type != emc6d103s) { |
|
data->groups[idx++] = &lm85_group_minctl; |
|
data->groups[idx++] = &lm85_group_temp_off; |
|
} |
|
|
|
/* |
|
* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used |
|
* as a sixth digital VID input rather than an analog input. |
|
*/ |
|
if (data->type == adt7463 || data->type == adt7468) { |
|
u8 vid = lm85_read_value(client, LM85_REG_VID); |
|
if (vid & 0x80) |
|
data->has_vid5 = true; |
|
} |
|
|
|
if (!data->has_vid5) |
|
data->groups[idx++] = &lm85_group_in4; |
|
|
|
/* The EMC6D100 has 3 additional voltage inputs */ |
|
if (data->type == emc6d100) |
|
data->groups[idx++] = &lm85_group_in567; |
|
|
|
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
|
data, data->groups); |
|
return PTR_ERR_OR_ZERO(hwmon_dev); |
|
} |
|
|
|
static const struct i2c_device_id lm85_id[] = { |
|
{ "adm1027", adm1027 }, |
|
{ "adt7463", adt7463 }, |
|
{ "adt7468", adt7468 }, |
|
{ "lm85", lm85 }, |
|
{ "lm85b", lm85 }, |
|
{ "lm85c", lm85 }, |
|
{ "lm96000", lm96000 }, |
|
{ "emc6d100", emc6d100 }, |
|
{ "emc6d101", emc6d100 }, |
|
{ "emc6d102", emc6d102 }, |
|
{ "emc6d103", emc6d103 }, |
|
{ "emc6d103s", emc6d103s }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, lm85_id); |
|
|
|
static const struct of_device_id __maybe_unused lm85_of_match[] = { |
|
{ |
|
.compatible = "adi,adm1027", |
|
.data = (void *)adm1027 |
|
}, |
|
{ |
|
.compatible = "adi,adt7463", |
|
.data = (void *)adt7463 |
|
}, |
|
{ |
|
.compatible = "adi,adt7468", |
|
.data = (void *)adt7468 |
|
}, |
|
{ |
|
.compatible = "national,lm85", |
|
.data = (void *)lm85 |
|
}, |
|
{ |
|
.compatible = "national,lm85b", |
|
.data = (void *)lm85 |
|
}, |
|
{ |
|
.compatible = "national,lm85c", |
|
.data = (void *)lm85 |
|
}, |
|
{ |
|
.compatible = "ti,lm96000", |
|
.data = (void *)lm96000 |
|
}, |
|
{ |
|
.compatible = "smsc,emc6d100", |
|
.data = (void *)emc6d100 |
|
}, |
|
{ |
|
.compatible = "smsc,emc6d101", |
|
.data = (void *)emc6d100 |
|
}, |
|
{ |
|
.compatible = "smsc,emc6d102", |
|
.data = (void *)emc6d102 |
|
}, |
|
{ |
|
.compatible = "smsc,emc6d103", |
|
.data = (void *)emc6d103 |
|
}, |
|
{ |
|
.compatible = "smsc,emc6d103s", |
|
.data = (void *)emc6d103s |
|
}, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(of, lm85_of_match); |
|
|
|
static struct i2c_driver lm85_driver = { |
|
.class = I2C_CLASS_HWMON, |
|
.driver = { |
|
.name = "lm85", |
|
.of_match_table = of_match_ptr(lm85_of_match), |
|
}, |
|
.probe_new = lm85_probe, |
|
.id_table = lm85_id, |
|
.detect = lm85_detect, |
|
.address_list = normal_i2c, |
|
}; |
|
|
|
module_i2c_driver(lm85_driver); |
|
|
|
MODULE_LICENSE("GPL"); |
|
MODULE_AUTHOR("Philip Pokorny <[email protected]>, " |
|
"Margit Schubert-While <[email protected]>, " |
|
"Justin Thiessen <[email protected]>"); |
|
MODULE_DESCRIPTION("LM85-B, LM85-C driver");
|
|
|