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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Guenter Roeck09770b22012-01-14 20:47:36 -08002 * lm85.c - Part of lm_sensors, Linux kernel modules for hardware
3 * monitoring
4 * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
5 * Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
6 * Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
7 * Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
Jean Delvare590e8532014-06-11 18:35:56 +02008 * Copyright (C) 2007--2014 Jean Delvare <jdelvare@suse.de>
Guenter Roeck09770b22012-01-14 20:47:36 -08009 *
10 * Chip details at <http://www.national.com/ds/LM/LM85.pdf>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070026
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <linux/module.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/jiffies.h>
31#include <linux/i2c.h>
Mark M. Hoffman943b0832005-07-15 21:39:18 -040032#include <linux/hwmon.h>
Jean Delvare303760b2005-07-31 21:52:01 +020033#include <linux/hwmon-vid.h>
Jean Delvareb353a482007-07-05 20:36:12 +020034#include <linux/hwmon-sysfs.h>
Mark M. Hoffman943b0832005-07-15 21:39:18 -040035#include <linux/err.h>
Ingo Molnar9a61bf62006-01-18 23:19:26 +010036#include <linux/mutex.h>
Bartosz Golaszewski0f3721c2015-04-16 12:43:36 -070037#include <linux/util_macros.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
39/* Addresses to scan */
Mark M. Hoffman25e9c862008-02-17 22:28:03 -050040static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
Jean Delvaree5e9f442009-12-14 21:17:27 +010042enum chips {
Jean Delvare590e8532014-06-11 18:35:56 +020043 lm85,
Jean Delvaree5e9f442009-12-14 21:17:27 +010044 adm1027, adt7463, adt7468,
Guenter Roeck06923f82011-02-19 08:27:47 -080045 emc6d100, emc6d102, emc6d103, emc6d103s
Jean Delvaree5e9f442009-12-14 21:17:27 +010046};
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
48/* The LM85 registers */
49
Guenter Roeck09770b22012-01-14 20:47:36 -080050#define LM85_REG_IN(nr) (0x20 + (nr))
51#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
52#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
Guenter Roeck09770b22012-01-14 20:47:36 -080054#define LM85_REG_TEMP(nr) (0x25 + (nr))
55#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
56#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58/* Fan speeds are LSB, MSB (2 bytes) */
Guenter Roeck09770b22012-01-14 20:47:36 -080059#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
60#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Guenter Roeck09770b22012-01-14 20:47:36 -080062#define LM85_REG_PWM(nr) (0x30 + (nr))
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Guenter Roeck09770b22012-01-14 20:47:36 -080064#define LM85_REG_COMPANY 0x3e
65#define LM85_REG_VERSTEP 0x3f
Darrick J. Wong79b92f22008-11-12 13:26:59 -080066
Guenter Roeck09770b22012-01-14 20:47:36 -080067#define ADT7468_REG_CFG5 0x7c
68#define ADT7468_OFF64 (1 << 0)
69#define ADT7468_HFPWM (1 << 1)
70#define IS_ADT7468_OFF64(data) \
Darrick J. Wong79b92f22008-11-12 13:26:59 -080071 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
Guenter Roeck09770b22012-01-14 20:47:36 -080072#define IS_ADT7468_HFPWM(data) \
Jean Delvaref6c61cf2010-10-28 20:31:50 +020073 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM))
Darrick J. Wong79b92f22008-11-12 13:26:59 -080074
Linus Torvalds1da177e2005-04-16 15:20:36 -070075/* These are the recognized values for the above regs */
Guenter Roeck09770b22012-01-14 20:47:36 -080076#define LM85_COMPANY_NATIONAL 0x01
77#define LM85_COMPANY_ANALOG_DEV 0x41
78#define LM85_COMPANY_SMSC 0x5c
Guenter Roeck09770b22012-01-14 20:47:36 -080079#define LM85_VERSTEP_LM85C 0x60
80#define LM85_VERSTEP_LM85B 0x62
81#define LM85_VERSTEP_LM96000_1 0x68
82#define LM85_VERSTEP_LM96000_2 0x69
83#define LM85_VERSTEP_ADM1027 0x60
84#define LM85_VERSTEP_ADT7463 0x62
85#define LM85_VERSTEP_ADT7463C 0x6A
86#define LM85_VERSTEP_ADT7468_1 0x71
87#define LM85_VERSTEP_ADT7468_2 0x72
88#define LM85_VERSTEP_EMC6D100_A0 0x60
89#define LM85_VERSTEP_EMC6D100_A1 0x61
90#define LM85_VERSTEP_EMC6D102 0x65
91#define LM85_VERSTEP_EMC6D103_A0 0x68
92#define LM85_VERSTEP_EMC6D103_A1 0x69
93#define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
Guenter Roeck09770b22012-01-14 20:47:36 -080095#define LM85_REG_CONFIG 0x40
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
Guenter Roeck09770b22012-01-14 20:47:36 -080097#define LM85_REG_ALARM1 0x41
98#define LM85_REG_ALARM2 0x42
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
Guenter Roeck09770b22012-01-14 20:47:36 -0800100#define LM85_REG_VID 0x43
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101
102/* Automated FAN control */
Guenter Roeck09770b22012-01-14 20:47:36 -0800103#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
104#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
105#define LM85_REG_AFAN_SPIKE1 0x62
106#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
107#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
108#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
109#define LM85_REG_AFAN_HYST1 0x6d
110#define LM85_REG_AFAN_HYST2 0x6e
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111
Guenter Roeck09770b22012-01-14 20:47:36 -0800112#define ADM1027_REG_EXTEND_ADC1 0x76
113#define ADM1027_REG_EXTEND_ADC2 0x77
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
115#define EMC6D100_REG_ALARM3 0x7d
116/* IN5, IN6 and IN7 */
Guenter Roeck09770b22012-01-14 20:47:36 -0800117#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
118#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
119#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
120#define EMC6D102_REG_EXTEND_ADC1 0x85
121#define EMC6D102_REG_EXTEND_ADC2 0x86
122#define EMC6D102_REG_EXTEND_ADC3 0x87
123#define EMC6D102_REG_EXTEND_ADC4 0x88
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
Guenter Roeck09770b22012-01-14 20:47:36 -0800125/*
126 * Conversions. Rounding and limit checking is only done on the TO_REG
127 * variants. Note that you should be a bit careful with which arguments
128 * these macros are called: arguments may be evaluated more than once.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 */
130
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300131/* IN are scaled according to built-in resistors */
Jean Delvaree89e22b2008-06-25 08:47:35 -0400132static const int lm85_scaling[] = { /* .001 Volts */
Jean Delvare1f448092008-04-29 14:03:37 +0200133 2500, 2250, 3300, 5000, 12000,
134 3300, 1500, 1800 /*EMC6D100*/
135};
136#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137
Jean Delvare1f448092008-04-29 14:03:37 +0200138#define INS_TO_REG(n, val) \
Guenter Roeck2a844c12013-01-09 08:09:34 -0800139 clamp_val(SCALE(val, lm85_scaling[n], 192), 0, 255)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
Jean Delvare1f448092008-04-29 14:03:37 +0200141#define INSEXT_FROM_REG(n, val, ext) \
Jean Delvare5a4d3ef2007-07-05 20:38:32 +0200142 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143
Jean Delvare1f448092008-04-29 14:03:37 +0200144#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145
146/* FAN speed is measured using 90kHz clock */
Jean Delvare63f281a2007-07-05 20:39:40 +0200147static inline u16 FAN_TO_REG(unsigned long val)
148{
149 if (!val)
150 return 0xffff;
Guenter Roeck2a844c12013-01-09 08:09:34 -0800151 return clamp_val(5400000 / val, 1, 0xfffe);
Jean Delvare63f281a2007-07-05 20:39:40 +0200152}
Jean Delvare1f448092008-04-29 14:03:37 +0200153#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
154 5400000 / (val))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
156/* Temperature is reported in .001 degC increments */
157#define TEMP_TO_REG(val) \
Guenter Roeck3248c3b2014-07-29 22:23:12 -0700158 DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000)
Jean Delvare1f448092008-04-29 14:03:37 +0200159#define TEMPEXT_FROM_REG(val, ext) \
Jean Delvare5a4d3ef2007-07-05 20:38:32 +0200160 SCALE(((val) << 4) + (ext), 16, 1000)
161#define TEMP_FROM_REG(val) ((val) * 1000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162
Guenter Roeck2a844c12013-01-09 08:09:34 -0800163#define PWM_TO_REG(val) clamp_val(val, 0, 255)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164#define PWM_FROM_REG(val) (val)
165
166
Guenter Roeck09770b22012-01-14 20:47:36 -0800167/*
168 * ZONEs have the following parameters:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 * Limit (low) temp, 1. degC
170 * Hysteresis (below limit), 1. degC (0-15)
171 * Range of speed control, .1 degC (2-80)
172 * Critical (high) temp, 1. degC
173 *
174 * FAN PWMs have the following parameters:
175 * Reference Zone, 1, 2, 3, etc.
176 * Spinup time, .05 sec
177 * PWM value at limit/low temp, 1 count
178 * PWM Frequency, 1. Hz
179 * PWM is Min or OFF below limit, flag
180 * Invert PWM output, flag
181 *
182 * Some chips filter the temp, others the fan.
183 * Filter constant (or disabled) .1 seconds
184 */
185
186/* These are the zone temperature range encodings in .001 degree C */
Jean Delvaree89e22b2008-06-25 08:47:35 -0400187static const int lm85_range_map[] = {
Jean Delvare1f448092008-04-29 14:03:37 +0200188 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
189 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
190};
191
Guenter Roeck3248c3b2014-07-29 22:23:12 -0700192static int RANGE_TO_REG(long range)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193{
Bartosz Golaszewski0f3721c2015-04-16 12:43:36 -0700194 return find_closest(range, lm85_range_map, ARRAY_SIZE(lm85_range_map));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195}
Jean Delvare1f448092008-04-29 14:03:37 +0200196#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198/* These are the PWM frequency encodings */
Jean Delvare34e7dc62008-10-17 17:51:13 +0200199static const int lm85_freq_map[8] = { /* 1 Hz */
Jean Delvare8a0795d2008-10-17 17:51:14 +0200200 10, 15, 23, 30, 38, 47, 61, 94
201};
202static const int adm1027_freq_map[8] = { /* 1 Hz */
203 11, 15, 22, 29, 35, 44, 59, 88
Jean Delvare1f448092008-04-29 14:03:37 +0200204};
Bartosz Golaszewski0f3721c2015-04-16 12:43:36 -0700205#define FREQ_MAP_LEN 8
Jean Delvare1f448092008-04-29 14:03:37 +0200206
Bartosz Golaszewski0f3721c2015-04-16 12:43:36 -0700207static int FREQ_TO_REG(const int *map,
208 unsigned int map_size, unsigned long freq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209{
Bartosz Golaszewski0f3721c2015-04-16 12:43:36 -0700210 return find_closest(freq, map, map_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211}
Jean Delvare8a0795d2008-10-17 17:51:14 +0200212
213static int FREQ_FROM_REG(const int *map, u8 reg)
214{
215 return map[reg & 0x07];
216}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
Guenter Roeck09770b22012-01-14 20:47:36 -0800218/*
219 * Since we can't use strings, I'm abusing these numbers
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 * to stand in for the following meanings:
221 * 1 -- PWM responds to Zone 1
222 * 2 -- PWM responds to Zone 2
223 * 3 -- PWM responds to Zone 3
224 * 23 -- PWM responds to the higher temp of Zone 2 or 3
225 * 123 -- PWM responds to highest of Zone 1, 2, or 3
226 * 0 -- PWM is always at 0% (ie, off)
227 * -1 -- PWM is always at 100%
228 * -2 -- PWM responds to manual control
229 */
230
Jean Delvaree89e22b2008-06-25 08:47:35 -0400231static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
232#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
Jean Delvare1f448092008-04-29 14:03:37 +0200234static int ZONE_TO_REG(int zone)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235{
236 int i;
237
Jean Delvare1f448092008-04-29 14:03:37 +0200238 for (i = 0; i <= 7; ++i)
239 if (zone == lm85_zone_map[i])
240 break;
241 if (i > 7) /* Not found. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 i = 3; /* Always 100% */
Jean Delvaree89e22b2008-06-25 08:47:35 -0400243 return i << 5;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244}
245
Guenter Roeck2a844c12013-01-09 08:09:34 -0800246#define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15)
Jean Delvare1f448092008-04-29 14:03:37 +0200247#define HYST_FROM_REG(val) ((val) * 1000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248
Guenter Roeck09770b22012-01-14 20:47:36 -0800249/*
250 * Chip sampling rates
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 *
252 * Some sensors are not updated more frequently than once per second
253 * so it doesn't make sense to read them more often than that.
254 * We cache the results and return the saved data if the driver
255 * is called again before a second has elapsed.
256 *
257 * Also, there is significant configuration data for this chip
258 * given the automatic PWM fan control that is possible. There
259 * are about 47 bytes of config data to only 22 bytes of actual
260 * readings. So, we keep the config data up to date in the cache
261 * when it is written and only sample it once every 1 *minute*
262 */
263#define LM85_DATA_INTERVAL (HZ + HZ / 2)
264#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
265
Guenter Roeck09770b22012-01-14 20:47:36 -0800266/*
267 * LM85 can automatically adjust fan speeds based on temperature
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 * This structure encapsulates an entire Zone config. There are
269 * three zones (one for each temperature input) on the lm85
270 */
271struct lm85_zone {
272 s8 limit; /* Low temp limit */
273 u8 hyst; /* Low limit hysteresis. (0-15) */
274 u8 range; /* Temp range, encoded */
275 s8 critical; /* "All fans ON" temp limit */
Guenter Roeck09770b22012-01-14 20:47:36 -0800276 u8 max_desired; /*
277 * Actual "max" temperature specified. Preserved
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 * to prevent "drift" as other autofan control
279 * values change.
280 */
281};
282
283struct lm85_autofan {
284 u8 config; /* Register value */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 u8 min_pwm; /* Minimum PWM value, encoded */
286 u8 min_off; /* Min PWM or OFF below "limit", flag */
287};
288
Guenter Roeck09770b22012-01-14 20:47:36 -0800289/*
290 * For each registered chip, we need to keep some data in memory.
291 * The structure is dynamically allocated.
292 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293struct lm85_data {
Axel Lin746f6882014-07-23 12:29:11 +0800294 struct i2c_client *client;
295 const struct attribute_group *groups[6];
Jean Delvare8a0795d2008-10-17 17:51:14 +0200296 const int *freq_map;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 enum chips type;
298
Guenter Roeckde248802011-02-25 08:19:42 -0800299 bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */
300
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100301 struct mutex update_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 int valid; /* !=0 if following fields are valid */
303 unsigned long last_reading; /* In jiffies */
304 unsigned long last_config; /* In jiffies */
305
306 u8 in[8]; /* Register value */
307 u8 in_max[8]; /* Register value */
308 u8 in_min[8]; /* Register value */
309 s8 temp[3]; /* Register value */
310 s8 temp_min[3]; /* Register value */
311 s8 temp_max[3]; /* Register value */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 u16 fan[4]; /* Register value */
313 u16 fan_min[4]; /* Register value */
314 u8 pwm[3]; /* Register value */
Jean Delvare34e7dc62008-10-17 17:51:13 +0200315 u8 pwm_freq[3]; /* Register encoding */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 u8 temp_ext[3]; /* Decoded values */
317 u8 in_ext[8]; /* Decoded values */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 u8 vid; /* Register value */
319 u8 vrm; /* VRM version */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 u32 alarms; /* Register encoding, combined */
Darrick J. Wong79b92f22008-11-12 13:26:59 -0800321 u8 cfg5; /* Config Register 5 on ADT7468 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 struct lm85_autofan autofan[3];
323 struct lm85_zone zone[3];
324};
325
Axel Lin6fd5dd52014-07-23 12:27:39 +0800326static int lm85_read_value(struct i2c_client *client, u8 reg)
327{
328 int res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
Axel Lin6fd5dd52014-07-23 12:27:39 +0800330 /* What size location is it? */
331 switch (reg) {
332 case LM85_REG_FAN(0): /* Read WORD data */
333 case LM85_REG_FAN(1):
334 case LM85_REG_FAN(2):
335 case LM85_REG_FAN(3):
336 case LM85_REG_FAN_MIN(0):
337 case LM85_REG_FAN_MIN(1):
338 case LM85_REG_FAN_MIN(2):
339 case LM85_REG_FAN_MIN(3):
340 case LM85_REG_ALARM1: /* Read both bytes at once */
341 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
342 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
343 break;
344 default: /* Read BYTE data */
345 res = i2c_smbus_read_byte_data(client, reg);
346 break;
347 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348
Axel Lin6fd5dd52014-07-23 12:27:39 +0800349 return res;
350}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
Axel Lin6fd5dd52014-07-23 12:27:39 +0800352static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
353{
354 switch (reg) {
355 case LM85_REG_FAN(0): /* Write WORD data */
356 case LM85_REG_FAN(1):
357 case LM85_REG_FAN(2):
358 case LM85_REG_FAN(3):
359 case LM85_REG_FAN_MIN(0):
360 case LM85_REG_FAN_MIN(1):
361 case LM85_REG_FAN_MIN(2):
362 case LM85_REG_FAN_MIN(3):
363 /* NOTE: ALARM is read only, so not included here */
364 i2c_smbus_write_byte_data(client, reg, value & 0xff);
365 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
366 break;
367 default: /* Write BYTE data */
368 i2c_smbus_write_byte_data(client, reg, value);
369 break;
370 }
371}
Jean Delvare67712d02008-10-17 17:51:14 +0200372
Axel Lin6fd5dd52014-07-23 12:27:39 +0800373static struct lm85_data *lm85_update_device(struct device *dev)
374{
Axel Lin746f6882014-07-23 12:29:11 +0800375 struct lm85_data *data = dev_get_drvdata(dev);
376 struct i2c_client *client = data->client;
Axel Lin6fd5dd52014-07-23 12:27:39 +0800377 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
Axel Lin6fd5dd52014-07-23 12:27:39 +0800379 mutex_lock(&data->update_lock);
380
381 if (!data->valid ||
382 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
383 /* Things that change quickly */
384 dev_dbg(&client->dev, "Reading sensor values\n");
385
386 /*
387 * Have to read extended bits first to "freeze" the
388 * more significant bits that are read later.
389 * There are 2 additional resolution bits per channel and we
390 * have room for 4, so we shift them to the left.
391 */
392 if (data->type == adm1027 || data->type == adt7463 ||
393 data->type == adt7468) {
394 int ext1 = lm85_read_value(client,
395 ADM1027_REG_EXTEND_ADC1);
396 int ext2 = lm85_read_value(client,
397 ADM1027_REG_EXTEND_ADC2);
398 int val = (ext1 << 8) + ext2;
399
400 for (i = 0; i <= 4; i++)
401 data->in_ext[i] =
402 ((val >> (i * 2)) & 0x03) << 2;
403
404 for (i = 0; i <= 2; i++)
405 data->temp_ext[i] =
406 (val >> ((i + 4) * 2)) & 0x0c;
407 }
408
409 data->vid = lm85_read_value(client, LM85_REG_VID);
410
411 for (i = 0; i <= 3; ++i) {
412 data->in[i] =
413 lm85_read_value(client, LM85_REG_IN(i));
414 data->fan[i] =
415 lm85_read_value(client, LM85_REG_FAN(i));
416 }
417
418 if (!data->has_vid5)
419 data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
420
421 if (data->type == adt7468)
422 data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
423
424 for (i = 0; i <= 2; ++i) {
425 data->temp[i] =
426 lm85_read_value(client, LM85_REG_TEMP(i));
427 data->pwm[i] =
428 lm85_read_value(client, LM85_REG_PWM(i));
429
430 if (IS_ADT7468_OFF64(data))
431 data->temp[i] -= 64;
432 }
433
434 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
435
436 if (data->type == emc6d100) {
437 /* Three more voltage sensors */
438 for (i = 5; i <= 7; ++i) {
439 data->in[i] = lm85_read_value(client,
440 EMC6D100_REG_IN(i));
441 }
442 /* More alarm bits */
443 data->alarms |= lm85_read_value(client,
444 EMC6D100_REG_ALARM3) << 16;
445 } else if (data->type == emc6d102 || data->type == emc6d103 ||
446 data->type == emc6d103s) {
447 /*
448 * Have to read LSB bits after the MSB ones because
449 * the reading of the MSB bits has frozen the
450 * LSBs (backward from the ADM1027).
451 */
452 int ext1 = lm85_read_value(client,
453 EMC6D102_REG_EXTEND_ADC1);
454 int ext2 = lm85_read_value(client,
455 EMC6D102_REG_EXTEND_ADC2);
456 int ext3 = lm85_read_value(client,
457 EMC6D102_REG_EXTEND_ADC3);
458 int ext4 = lm85_read_value(client,
459 EMC6D102_REG_EXTEND_ADC4);
460 data->in_ext[0] = ext3 & 0x0f;
461 data->in_ext[1] = ext4 & 0x0f;
462 data->in_ext[2] = ext4 >> 4;
463 data->in_ext[3] = ext3 >> 4;
464 data->in_ext[4] = ext2 >> 4;
465
466 data->temp_ext[0] = ext1 & 0x0f;
467 data->temp_ext[1] = ext2 & 0x0f;
468 data->temp_ext[2] = ext1 >> 4;
469 }
470
471 data->last_reading = jiffies;
472 } /* last_reading */
473
474 if (!data->valid ||
475 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
476 /* Things that don't change often */
477 dev_dbg(&client->dev, "Reading config values\n");
478
479 for (i = 0; i <= 3; ++i) {
480 data->in_min[i] =
481 lm85_read_value(client, LM85_REG_IN_MIN(i));
482 data->in_max[i] =
483 lm85_read_value(client, LM85_REG_IN_MAX(i));
484 data->fan_min[i] =
485 lm85_read_value(client, LM85_REG_FAN_MIN(i));
486 }
487
488 if (!data->has_vid5) {
489 data->in_min[4] = lm85_read_value(client,
490 LM85_REG_IN_MIN(4));
491 data->in_max[4] = lm85_read_value(client,
492 LM85_REG_IN_MAX(4));
493 }
494
495 if (data->type == emc6d100) {
496 for (i = 5; i <= 7; ++i) {
497 data->in_min[i] = lm85_read_value(client,
498 EMC6D100_REG_IN_MIN(i));
499 data->in_max[i] = lm85_read_value(client,
500 EMC6D100_REG_IN_MAX(i));
501 }
502 }
503
504 for (i = 0; i <= 2; ++i) {
505 int val;
506
507 data->temp_min[i] =
508 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
509 data->temp_max[i] =
510 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
511
512 data->autofan[i].config =
513 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
514 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
515 data->pwm_freq[i] = val & 0x07;
516 data->zone[i].range = val >> 4;
517 data->autofan[i].min_pwm =
518 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
519 data->zone[i].limit =
520 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
521 data->zone[i].critical =
522 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
523
524 if (IS_ADT7468_OFF64(data)) {
525 data->temp_min[i] -= 64;
526 data->temp_max[i] -= 64;
527 data->zone[i].limit -= 64;
528 data->zone[i].critical -= 64;
529 }
530 }
531
532 if (data->type != emc6d103s) {
533 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
534 data->autofan[0].min_off = (i & 0x20) != 0;
535 data->autofan[1].min_off = (i & 0x40) != 0;
536 data->autofan[2].min_off = (i & 0x80) != 0;
537
538 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
539 data->zone[0].hyst = i >> 4;
540 data->zone[1].hyst = i & 0x0f;
541
542 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
543 data->zone[2].hyst = i >> 4;
544 }
545
546 data->last_config = jiffies;
547 } /* last_config */
548
549 data->valid = 1;
550
551 mutex_unlock(&data->update_lock);
552
553 return data;
554}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555
556/* 4 Fans */
Jean Delvareb353a482007-07-05 20:36:12 +0200557static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
558 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559{
Jean Delvareb353a482007-07-05 20:36:12 +0200560 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200562 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563}
Jean Delvareb353a482007-07-05 20:36:12 +0200564
565static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
566 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567{
Jean Delvareb353a482007-07-05 20:36:12 +0200568 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200570 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571}
Jean Delvareb353a482007-07-05 20:36:12 +0200572
573static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
574 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575{
Jean Delvareb353a482007-07-05 20:36:12 +0200576 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800577 struct lm85_data *data = dev_get_drvdata(dev);
578 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800579 unsigned long val;
580 int err;
581
582 err = kstrtoul(buf, 10, &val);
583 if (err)
584 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100586 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 data->fan_min[nr] = FAN_TO_REG(val);
588 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100589 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 return count;
591}
592
593#define show_fan_offset(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200594static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
595 show_fan, NULL, offset - 1); \
596static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
597 show_fan_min, set_fan_min, offset - 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598
599show_fan_offset(1);
600show_fan_offset(2);
601show_fan_offset(3);
602show_fan_offset(4);
603
604/* vid, vrm, alarms */
605
Jean Delvare1f448092008-04-29 14:03:37 +0200606static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
607 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608{
609 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare9c516ef2005-11-26 20:07:54 +0100610 int vid;
611
Guenter Roeckde248802011-02-25 08:19:42 -0800612 if (data->has_vid5) {
Jean Delvare9c516ef2005-11-26 20:07:54 +0100613 /* 6-pin VID (VRM 10) */
614 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
615 } else {
616 /* 5-pin VID (VRM 9) */
617 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
618 }
619
620 return sprintf(buf, "%d\n", vid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621}
622
623static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
624
Jean Delvare1f448092008-04-29 14:03:37 +0200625static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
626 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627{
Jean Delvare90d66192007-10-08 18:24:35 +0200628 struct lm85_data *data = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 return sprintf(buf, "%ld\n", (long) data->vrm);
630}
631
Jean Delvare1f448092008-04-29 14:03:37 +0200632static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
633 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634{
Jean Delvare8f74efe2007-12-01 11:25:33 +0100635 struct lm85_data *data = dev_get_drvdata(dev);
Guenter Roeck09770b22012-01-14 20:47:36 -0800636 unsigned long val;
637 int err;
638
639 err = kstrtoul(buf, 10, &val);
640 if (err)
641 return err;
642
Guenter Roeck3248c3b2014-07-29 22:23:12 -0700643 if (val > 255)
644 return -EINVAL;
645
Guenter Roeck09770b22012-01-14 20:47:36 -0800646 data->vrm = val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 return count;
648}
649
650static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
651
Jean Delvare1f448092008-04-29 14:03:37 +0200652static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
653 *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654{
655 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare68188ba2005-05-16 18:52:38 +0200656 return sprintf(buf, "%u\n", data->alarms);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657}
658
659static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
660
Jean Delvarebf76e9d2007-07-05 20:37:58 +0200661static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
662 char *buf)
663{
664 int nr = to_sensor_dev_attr(attr)->index;
665 struct lm85_data *data = lm85_update_device(dev);
666 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
667}
668
669static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
670static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
671static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
672static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
673static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
674static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
675static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
676static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
677static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
678static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
679static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
680static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
681static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
682static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
683static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
684static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
685static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
686
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687/* pwm */
688
Jean Delvareb353a482007-07-05 20:36:12 +0200689static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
690 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691{
Jean Delvareb353a482007-07-05 20:36:12 +0200692 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200694 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695}
Jean Delvareb353a482007-07-05 20:36:12 +0200696
697static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
698 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699{
Jean Delvareb353a482007-07-05 20:36:12 +0200700 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800701 struct lm85_data *data = dev_get_drvdata(dev);
702 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800703 unsigned long val;
704 int err;
705
706 err = kstrtoul(buf, 10, &val);
707 if (err)
708 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100710 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711 data->pwm[nr] = PWM_TO_REG(val);
712 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100713 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 return count;
715}
Jean Delvareb353a482007-07-05 20:36:12 +0200716
717static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
718 *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719{
Jean Delvareb353a482007-07-05 20:36:12 +0200720 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare4b4df952007-12-03 23:23:21 +0100722 int pwm_zone, enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723
724 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
Jean Delvare4b4df952007-12-03 23:23:21 +0100725 switch (pwm_zone) {
726 case -1: /* PWM is always at 100% */
727 enable = 0;
728 break;
729 case 0: /* PWM is always at 0% */
730 case -2: /* PWM responds to manual control */
731 enable = 1;
732 break;
733 default: /* PWM in automatic mode */
734 enable = 2;
735 }
736 return sprintf(buf, "%d\n", enable);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737}
738
Jean Delvare455f7912007-12-03 23:28:42 +0100739static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
740 *attr, const char *buf, size_t count)
741{
742 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800743 struct lm85_data *data = dev_get_drvdata(dev);
744 struct i2c_client *client = data->client;
Jean Delvare455f7912007-12-03 23:28:42 +0100745 u8 config;
Guenter Roeck09770b22012-01-14 20:47:36 -0800746 unsigned long val;
747 int err;
748
749 err = kstrtoul(buf, 10, &val);
750 if (err)
751 return err;
Jean Delvare455f7912007-12-03 23:28:42 +0100752
753 switch (val) {
754 case 0:
755 config = 3;
756 break;
757 case 1:
758 config = 7;
759 break;
760 case 2:
Guenter Roeck09770b22012-01-14 20:47:36 -0800761 /*
762 * Here we have to choose arbitrarily one of the 5 possible
763 * configurations; I go for the safest
764 */
Jean Delvare455f7912007-12-03 23:28:42 +0100765 config = 6;
766 break;
767 default:
768 return -EINVAL;
769 }
770
771 mutex_lock(&data->update_lock);
772 data->autofan[nr].config = lm85_read_value(client,
773 LM85_REG_AFAN_CONFIG(nr));
774 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
775 | (config << 5);
776 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
777 data->autofan[nr].config);
778 mutex_unlock(&data->update_lock);
779 return count;
780}
781
Jean Delvare34e7dc62008-10-17 17:51:13 +0200782static ssize_t show_pwm_freq(struct device *dev,
783 struct device_attribute *attr, char *buf)
784{
785 int nr = to_sensor_dev_attr(attr)->index;
786 struct lm85_data *data = lm85_update_device(dev);
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200787 int freq;
788
789 if (IS_ADT7468_HFPWM(data))
790 freq = 22500;
791 else
792 freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]);
793
794 return sprintf(buf, "%d\n", freq);
Jean Delvare34e7dc62008-10-17 17:51:13 +0200795}
796
797static ssize_t set_pwm_freq(struct device *dev,
798 struct device_attribute *attr, const char *buf, size_t count)
799{
800 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800801 struct lm85_data *data = dev_get_drvdata(dev);
802 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800803 unsigned long val;
804 int err;
805
806 err = kstrtoul(buf, 10, &val);
807 if (err)
808 return err;
Jean Delvare34e7dc62008-10-17 17:51:13 +0200809
810 mutex_lock(&data->update_lock);
Guenter Roeck09770b22012-01-14 20:47:36 -0800811 /*
812 * The ADT7468 has a special high-frequency PWM output mode,
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200813 * where all PWM outputs are driven by a 22.5 kHz clock.
Guenter Roeck09770b22012-01-14 20:47:36 -0800814 * This might confuse the user, but there's not much we can do.
815 */
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200816 if (data->type == adt7468 && val >= 11300) { /* High freq. mode */
817 data->cfg5 &= ~ADT7468_HFPWM;
818 lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
819 } else { /* Low freq. mode */
Bartosz Golaszewski0f3721c2015-04-16 12:43:36 -0700820 data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map,
821 FREQ_MAP_LEN, val);
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200822 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
823 (data->zone[nr].range << 4)
824 | data->pwm_freq[nr]);
825 if (data->type == adt7468) {
826 data->cfg5 |= ADT7468_HFPWM;
827 lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
828 }
829 }
Jean Delvare34e7dc62008-10-17 17:51:13 +0200830 mutex_unlock(&data->update_lock);
831 return count;
832}
833
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834#define show_pwm_reg(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200835static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
836 show_pwm, set_pwm, offset - 1); \
Jean Delvare455f7912007-12-03 23:28:42 +0100837static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
Jean Delvare34e7dc62008-10-17 17:51:13 +0200838 show_pwm_enable, set_pwm_enable, offset - 1); \
839static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
840 show_pwm_freq, set_pwm_freq, offset - 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
842show_pwm_reg(1);
843show_pwm_reg(2);
844show_pwm_reg(3);
845
846/* Voltages */
847
Jean Delvareb353a482007-07-05 20:36:12 +0200848static ssize_t show_in(struct device *dev, struct device_attribute *attr,
849 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850{
Jean Delvareb353a482007-07-05 20:36:12 +0200851 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200853 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
854 data->in_ext[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855}
Jean Delvareb353a482007-07-05 20:36:12 +0200856
Jean Delvare1f448092008-04-29 14:03:37 +0200857static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
Jean Delvareb353a482007-07-05 20:36:12 +0200858 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859{
Jean Delvareb353a482007-07-05 20:36:12 +0200860 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200862 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863}
Jean Delvareb353a482007-07-05 20:36:12 +0200864
865static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
866 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867{
Jean Delvareb353a482007-07-05 20:36:12 +0200868 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800869 struct lm85_data *data = dev_get_drvdata(dev);
870 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800871 long val;
872 int err;
873
874 err = kstrtol(buf, 10, &val);
875 if (err)
876 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100878 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 data->in_min[nr] = INS_TO_REG(nr, val);
880 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100881 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882 return count;
883}
Jean Delvareb353a482007-07-05 20:36:12 +0200884
885static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
886 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887{
Jean Delvareb353a482007-07-05 20:36:12 +0200888 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200890 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891}
Jean Delvareb353a482007-07-05 20:36:12 +0200892
893static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
894 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895{
Jean Delvareb353a482007-07-05 20:36:12 +0200896 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800897 struct lm85_data *data = dev_get_drvdata(dev);
898 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800899 long val;
900 int err;
901
902 err = kstrtol(buf, 10, &val);
903 if (err)
904 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100906 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907 data->in_max[nr] = INS_TO_REG(nr, val);
908 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100909 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910 return count;
911}
Jean Delvareb353a482007-07-05 20:36:12 +0200912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913#define show_in_reg(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200914static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
915 show_in, NULL, offset); \
916static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
917 show_in_min, set_in_min, offset); \
918static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
919 show_in_max, set_in_max, offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920
921show_in_reg(0);
922show_in_reg(1);
923show_in_reg(2);
924show_in_reg(3);
925show_in_reg(4);
Jean Delvare6b9aad22007-07-05 20:37:21 +0200926show_in_reg(5);
927show_in_reg(6);
928show_in_reg(7);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929
930/* Temps */
931
Jean Delvareb353a482007-07-05 20:36:12 +0200932static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
933 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934{
Jean Delvareb353a482007-07-05 20:36:12 +0200935 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200937 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
938 data->temp_ext[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939}
Jean Delvareb353a482007-07-05 20:36:12 +0200940
941static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
942 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943{
Jean Delvareb353a482007-07-05 20:36:12 +0200944 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200946 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947}
Jean Delvareb353a482007-07-05 20:36:12 +0200948
949static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
950 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951{
Jean Delvareb353a482007-07-05 20:36:12 +0200952 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800953 struct lm85_data *data = dev_get_drvdata(dev);
954 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800955 long val;
956 int err;
957
958 err = kstrtol(buf, 10, &val);
959 if (err)
960 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Darrick J. Wong79b92f22008-11-12 13:26:59 -0800962 if (IS_ADT7468_OFF64(data))
963 val += 64;
964
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100965 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 data->temp_min[nr] = TEMP_TO_REG(val);
967 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100968 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969 return count;
970}
Jean Delvareb353a482007-07-05 20:36:12 +0200971
972static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
973 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974{
Jean Delvareb353a482007-07-05 20:36:12 +0200975 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200977 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978}
Jean Delvareb353a482007-07-05 20:36:12 +0200979
980static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
981 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982{
Jean Delvareb353a482007-07-05 20:36:12 +0200983 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +0800984 struct lm85_data *data = dev_get_drvdata(dev);
985 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -0800986 long val;
987 int err;
988
989 err = kstrtol(buf, 10, &val);
990 if (err)
991 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
Darrick J. Wong79b92f22008-11-12 13:26:59 -0800993 if (IS_ADT7468_OFF64(data))
994 val += 64;
995
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100996 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 data->temp_max[nr] = TEMP_TO_REG(val);
998 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100999 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 return count;
1001}
Jean Delvareb353a482007-07-05 20:36:12 +02001002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003#define show_temp_reg(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +02001004static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
1005 show_temp, NULL, offset - 1); \
1006static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
1007 show_temp_min, set_temp_min, offset - 1); \
1008static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
1009 show_temp_max, set_temp_max, offset - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010
1011show_temp_reg(1);
1012show_temp_reg(2);
1013show_temp_reg(3);
1014
1015
1016/* Automatic PWM control */
1017
Jean Delvareb353a482007-07-05 20:36:12 +02001018static ssize_t show_pwm_auto_channels(struct device *dev,
1019 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020{
Jean Delvareb353a482007-07-05 20:36:12 +02001021 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001023 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024}
Jean Delvareb353a482007-07-05 20:36:12 +02001025
1026static ssize_t set_pwm_auto_channels(struct device *dev,
1027 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028{
Jean Delvareb353a482007-07-05 20:36:12 +02001029 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001030 struct lm85_data *data = dev_get_drvdata(dev);
1031 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -08001032 long val;
1033 int err;
1034
1035 err = kstrtol(buf, 10, &val);
1036 if (err)
1037 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001039 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
Jean Delvare1f448092008-04-29 14:03:37 +02001041 | ZONE_TO_REG(val);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
1043 data->autofan[nr].config);
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001044 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 return count;
1046}
Jean Delvareb353a482007-07-05 20:36:12 +02001047
1048static ssize_t show_pwm_auto_pwm_min(struct device *dev,
1049 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050{
Jean Delvareb353a482007-07-05 20:36:12 +02001051 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001053 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054}
Jean Delvareb353a482007-07-05 20:36:12 +02001055
1056static ssize_t set_pwm_auto_pwm_min(struct device *dev,
1057 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058{
Jean Delvareb353a482007-07-05 20:36:12 +02001059 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001060 struct lm85_data *data = dev_get_drvdata(dev);
1061 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -08001062 unsigned long val;
1063 int err;
1064
1065 err = kstrtoul(buf, 10, &val);
1066 if (err)
1067 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001069 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070 data->autofan[nr].min_pwm = PWM_TO_REG(val);
1071 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
1072 data->autofan[nr].min_pwm);
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001073 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 return count;
1075}
Jean Delvareb353a482007-07-05 20:36:12 +02001076
1077static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
1078 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079{
Jean Delvareb353a482007-07-05 20:36:12 +02001080 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001082 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083}
Jean Delvareb353a482007-07-05 20:36:12 +02001084
1085static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
1086 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087{
Jean Delvareb353a482007-07-05 20:36:12 +02001088 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001089 struct lm85_data *data = dev_get_drvdata(dev);
1090 struct i2c_client *client = data->client;
Jean Delvare7133e562008-04-12 19:56:35 +02001091 u8 tmp;
Guenter Roeck09770b22012-01-14 20:47:36 -08001092 long val;
1093 int err;
1094
1095 err = kstrtol(buf, 10, &val);
1096 if (err)
1097 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001099 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 data->autofan[nr].min_off = val;
Jean Delvare7133e562008-04-12 19:56:35 +02001101 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1102 tmp &= ~(0x20 << nr);
1103 if (data->autofan[nr].min_off)
1104 tmp |= 0x20 << nr;
1105 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001106 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107 return count;
1108}
Jean Delvareb353a482007-07-05 20:36:12 +02001109
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110#define pwm_auto(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +02001111static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
1112 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
1113 set_pwm_auto_channels, offset - 1); \
1114static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
1115 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
1116 set_pwm_auto_pwm_min, offset - 1); \
1117static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
1118 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
Jean Delvare34e7dc62008-10-17 17:51:13 +02001119 set_pwm_auto_pwm_minctl, offset - 1)
Jean Delvareb353a482007-07-05 20:36:12 +02001120
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121pwm_auto(1);
1122pwm_auto(2);
1123pwm_auto(3);
1124
1125/* Temperature settings for automatic PWM control */
1126
Jean Delvareb353a482007-07-05 20:36:12 +02001127static ssize_t show_temp_auto_temp_off(struct device *dev,
1128 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129{
Jean Delvareb353a482007-07-05 20:36:12 +02001130 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001132 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133 HYST_FROM_REG(data->zone[nr].hyst));
1134}
Jean Delvareb353a482007-07-05 20:36:12 +02001135
1136static ssize_t set_temp_auto_temp_off(struct device *dev,
1137 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138{
Jean Delvareb353a482007-07-05 20:36:12 +02001139 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001140 struct lm85_data *data = dev_get_drvdata(dev);
1141 struct i2c_client *client = data->client;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 int min;
Guenter Roeck09770b22012-01-14 20:47:36 -08001143 long val;
1144 int err;
1145
1146 err = kstrtol(buf, 10, &val);
1147 if (err)
1148 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001150 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 min = TEMP_FROM_REG(data->zone[nr].limit);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152 data->zone[nr].hyst = HYST_TO_REG(min - val);
Jean Delvare1f448092008-04-29 14:03:37 +02001153 if (nr == 0 || nr == 1) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154 lm85_write_value(client, LM85_REG_AFAN_HYST1,
1155 (data->zone[0].hyst << 4)
Jean Delvare1f448092008-04-29 14:03:37 +02001156 | data->zone[1].hyst);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157 } else {
1158 lm85_write_value(client, LM85_REG_AFAN_HYST2,
Jean Delvare1f448092008-04-29 14:03:37 +02001159 (data->zone[2].hyst << 4));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 }
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001161 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162 return count;
1163}
Jean Delvareb353a482007-07-05 20:36:12 +02001164
1165static ssize_t show_temp_auto_temp_min(struct device *dev,
1166 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167{
Jean Delvareb353a482007-07-05 20:36:12 +02001168 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001170 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171}
Jean Delvareb353a482007-07-05 20:36:12 +02001172
1173static ssize_t set_temp_auto_temp_min(struct device *dev,
1174 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175{
Jean Delvareb353a482007-07-05 20:36:12 +02001176 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001177 struct lm85_data *data = dev_get_drvdata(dev);
1178 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -08001179 long val;
1180 int err;
1181
1182 err = kstrtol(buf, 10, &val);
1183 if (err)
1184 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001186 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187 data->zone[nr].limit = TEMP_TO_REG(val);
1188 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
1189 data->zone[nr].limit);
1190
1191/* Update temp_auto_max and temp_auto_range */
1192 data->zone[nr].range = RANGE_TO_REG(
1193 TEMP_FROM_REG(data->zone[nr].max_desired) -
1194 TEMP_FROM_REG(data->zone[nr].limit));
1195 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
1196 ((data->zone[nr].range & 0x0f) << 4)
Jean Delvare34e7dc62008-10-17 17:51:13 +02001197 | (data->pwm_freq[nr] & 0x07));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001199 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200 return count;
1201}
Jean Delvareb353a482007-07-05 20:36:12 +02001202
1203static ssize_t show_temp_auto_temp_max(struct device *dev,
1204 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205{
Jean Delvareb353a482007-07-05 20:36:12 +02001206 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001208 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 RANGE_FROM_REG(data->zone[nr].range));
1210}
Jean Delvareb353a482007-07-05 20:36:12 +02001211
1212static ssize_t set_temp_auto_temp_max(struct device *dev,
1213 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214{
Jean Delvareb353a482007-07-05 20:36:12 +02001215 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001216 struct lm85_data *data = dev_get_drvdata(dev);
1217 struct i2c_client *client = data->client;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 int min;
Guenter Roeck09770b22012-01-14 20:47:36 -08001219 long val;
1220 int err;
1221
1222 err = kstrtol(buf, 10, &val);
1223 if (err)
1224 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001226 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227 min = TEMP_FROM_REG(data->zone[nr].limit);
1228 data->zone[nr].max_desired = TEMP_TO_REG(val);
1229 data->zone[nr].range = RANGE_TO_REG(
1230 val - min);
1231 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
1232 ((data->zone[nr].range & 0x0f) << 4)
Jean Delvare34e7dc62008-10-17 17:51:13 +02001233 | (data->pwm_freq[nr] & 0x07));
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001234 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 return count;
1236}
Jean Delvareb353a482007-07-05 20:36:12 +02001237
1238static ssize_t show_temp_auto_temp_crit(struct device *dev,
1239 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240{
Jean Delvareb353a482007-07-05 20:36:12 +02001241 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001243 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244}
Jean Delvareb353a482007-07-05 20:36:12 +02001245
1246static ssize_t set_temp_auto_temp_crit(struct device *dev,
Jean Delvare1f448092008-04-29 14:03:37 +02001247 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248{
Jean Delvareb353a482007-07-05 20:36:12 +02001249 int nr = to_sensor_dev_attr(attr)->index;
Axel Lin746f6882014-07-23 12:29:11 +08001250 struct lm85_data *data = dev_get_drvdata(dev);
1251 struct i2c_client *client = data->client;
Guenter Roeck09770b22012-01-14 20:47:36 -08001252 long val;
1253 int err;
1254
1255 err = kstrtol(buf, 10, &val);
1256 if (err)
1257 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001259 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 data->zone[nr].critical = TEMP_TO_REG(val);
1261 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
1262 data->zone[nr].critical);
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001263 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 return count;
1265}
Jean Delvareb353a482007-07-05 20:36:12 +02001266
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267#define temp_auto(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +02001268static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
1269 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
1270 set_temp_auto_temp_off, offset - 1); \
1271static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
1272 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
1273 set_temp_auto_temp_min, offset - 1); \
1274static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
1275 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
1276 set_temp_auto_temp_max, offset - 1); \
1277static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
1278 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
1279 set_temp_auto_temp_crit, offset - 1);
1280
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281temp_auto(1);
1282temp_auto(2);
1283temp_auto(3);
1284
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001285static struct attribute *lm85_attributes[] = {
Jean Delvareb353a482007-07-05 20:36:12 +02001286 &sensor_dev_attr_fan1_input.dev_attr.attr,
1287 &sensor_dev_attr_fan2_input.dev_attr.attr,
1288 &sensor_dev_attr_fan3_input.dev_attr.attr,
1289 &sensor_dev_attr_fan4_input.dev_attr.attr,
1290 &sensor_dev_attr_fan1_min.dev_attr.attr,
1291 &sensor_dev_attr_fan2_min.dev_attr.attr,
1292 &sensor_dev_attr_fan3_min.dev_attr.attr,
1293 &sensor_dev_attr_fan4_min.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001294 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1295 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1296 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1297 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001298
1299 &sensor_dev_attr_pwm1.dev_attr.attr,
1300 &sensor_dev_attr_pwm2.dev_attr.attr,
1301 &sensor_dev_attr_pwm3.dev_attr.attr,
1302 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1303 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1304 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
Jean Delvare34e7dc62008-10-17 17:51:13 +02001305 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1306 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1307 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001308
1309 &sensor_dev_attr_in0_input.dev_attr.attr,
1310 &sensor_dev_attr_in1_input.dev_attr.attr,
1311 &sensor_dev_attr_in2_input.dev_attr.attr,
1312 &sensor_dev_attr_in3_input.dev_attr.attr,
1313 &sensor_dev_attr_in0_min.dev_attr.attr,
1314 &sensor_dev_attr_in1_min.dev_attr.attr,
1315 &sensor_dev_attr_in2_min.dev_attr.attr,
1316 &sensor_dev_attr_in3_min.dev_attr.attr,
1317 &sensor_dev_attr_in0_max.dev_attr.attr,
1318 &sensor_dev_attr_in1_max.dev_attr.attr,
1319 &sensor_dev_attr_in2_max.dev_attr.attr,
1320 &sensor_dev_attr_in3_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001321 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1322 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1323 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1324 &sensor_dev_attr_in3_alarm.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001325
1326 &sensor_dev_attr_temp1_input.dev_attr.attr,
1327 &sensor_dev_attr_temp2_input.dev_attr.attr,
1328 &sensor_dev_attr_temp3_input.dev_attr.attr,
1329 &sensor_dev_attr_temp1_min.dev_attr.attr,
1330 &sensor_dev_attr_temp2_min.dev_attr.attr,
1331 &sensor_dev_attr_temp3_min.dev_attr.attr,
1332 &sensor_dev_attr_temp1_max.dev_attr.attr,
1333 &sensor_dev_attr_temp2_max.dev_attr.attr,
1334 &sensor_dev_attr_temp3_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001335 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1336 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1337 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1338 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1339 &sensor_dev_attr_temp3_fault.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001340
1341 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1342 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1343 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1344 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1345 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1346 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001347
Jean Delvareb353a482007-07-05 20:36:12 +02001348 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1349 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1350 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1351 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1352 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1353 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1354 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1355 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1356 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1357
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001358 &dev_attr_vrm.attr,
1359 &dev_attr_cpu0_vid.attr,
1360 &dev_attr_alarms.attr,
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001361 NULL
1362};
1363
1364static const struct attribute_group lm85_group = {
1365 .attrs = lm85_attributes,
1366};
1367
Guenter Roeck06923f82011-02-19 08:27:47 -08001368static struct attribute *lm85_attributes_minctl[] = {
1369 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1370 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1371 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
Jean Delvare5f441e22011-04-29 16:33:36 +02001372 NULL
Guenter Roeck06923f82011-02-19 08:27:47 -08001373};
1374
1375static const struct attribute_group lm85_group_minctl = {
1376 .attrs = lm85_attributes_minctl,
1377};
1378
1379static struct attribute *lm85_attributes_temp_off[] = {
1380 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1381 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1382 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
Jean Delvare5f441e22011-04-29 16:33:36 +02001383 NULL
Guenter Roeck06923f82011-02-19 08:27:47 -08001384};
1385
1386static const struct attribute_group lm85_group_temp_off = {
1387 .attrs = lm85_attributes_temp_off,
1388};
1389
Jean Delvare6b9aad22007-07-05 20:37:21 +02001390static struct attribute *lm85_attributes_in4[] = {
Jean Delvareb353a482007-07-05 20:36:12 +02001391 &sensor_dev_attr_in4_input.dev_attr.attr,
1392 &sensor_dev_attr_in4_min.dev_attr.attr,
1393 &sensor_dev_attr_in4_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001394 &sensor_dev_attr_in4_alarm.dev_attr.attr,
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001395 NULL
1396};
1397
Jean Delvare6b9aad22007-07-05 20:37:21 +02001398static const struct attribute_group lm85_group_in4 = {
1399 .attrs = lm85_attributes_in4,
1400};
1401
1402static struct attribute *lm85_attributes_in567[] = {
1403 &sensor_dev_attr_in5_input.dev_attr.attr,
1404 &sensor_dev_attr_in6_input.dev_attr.attr,
1405 &sensor_dev_attr_in7_input.dev_attr.attr,
1406 &sensor_dev_attr_in5_min.dev_attr.attr,
1407 &sensor_dev_attr_in6_min.dev_attr.attr,
1408 &sensor_dev_attr_in7_min.dev_attr.attr,
1409 &sensor_dev_attr_in5_max.dev_attr.attr,
1410 &sensor_dev_attr_in6_max.dev_attr.attr,
1411 &sensor_dev_attr_in7_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001412 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1413 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1414 &sensor_dev_attr_in7_alarm.dev_attr.attr,
Jean Delvare6b9aad22007-07-05 20:37:21 +02001415 NULL
1416};
1417
1418static const struct attribute_group lm85_group_in567 = {
1419 .attrs = lm85_attributes_in567,
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001420};
1421
Jean Delvare5f44759472008-06-25 09:10:30 -04001422static void lm85_init_client(struct i2c_client *client)
1423{
1424 int value;
1425
1426 /* Start monitoring if needed */
1427 value = lm85_read_value(client, LM85_REG_CONFIG);
1428 if (!(value & 0x01)) {
1429 dev_info(&client->dev, "Starting monitoring\n");
1430 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1431 }
1432
1433 /* Warn about unusual configuration bits */
1434 if (value & 0x02)
1435 dev_warn(&client->dev, "Device configuration is locked\n");
1436 if (!(value & 0x04))
1437 dev_warn(&client->dev, "Device is not ready\n");
1438}
1439
Jean Delvare5cfaf332009-09-15 17:18:14 +02001440static int lm85_is_fake(struct i2c_client *client)
1441{
1442 /*
1443 * Differenciate between real LM96000 and Winbond WPCD377I. The latter
1444 * emulate the former except that it has no hardware monitoring function
1445 * so the readings are always 0.
1446 */
1447 int i;
1448 u8 in_temp, fan;
1449
1450 for (i = 0; i < 8; i++) {
1451 in_temp = i2c_smbus_read_byte_data(client, 0x20 + i);
1452 fan = i2c_smbus_read_byte_data(client, 0x28 + i);
1453 if (in_temp != 0x00 || fan != 0xff)
1454 return 0;
1455 }
1456
1457 return 1;
1458}
1459
Jean Delvare67712d02008-10-17 17:51:14 +02001460/* Return 0 if detection is successful, -ENODEV otherwise */
Jean Delvare310ec792009-12-14 21:17:23 +01001461static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462{
Jean Delvare67712d02008-10-17 17:51:14 +02001463 struct i2c_adapter *adapter = client->adapter;
1464 int address = client->addr;
Jean Delvare590e8532014-06-11 18:35:56 +02001465 const char *type_name = NULL;
Jean Delvared42a2eb2009-12-09 20:35:53 +01001466 int company, verstep;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467
Jean Delvaree89e22b2008-06-25 08:47:35 -04001468 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469 /* We need to be able to do byte I/O */
Jean Delvare67712d02008-10-17 17:51:14 +02001470 return -ENODEV;
Jean Delvare1f448092008-04-29 14:03:37 +02001471 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472
Jean Delvared42a2eb2009-12-09 20:35:53 +01001473 /* Determine the chip type */
1474 company = lm85_read_value(client, LM85_REG_COMPANY);
1475 verstep = lm85_read_value(client, LM85_REG_VERSTEP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476
Guenter Roeckb55f3752013-01-10 10:01:24 -08001477 dev_dbg(&adapter->dev,
1478 "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
Jean Delvared42a2eb2009-12-09 20:35:53 +01001479 address, company, verstep);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480
Jean Delvared42a2eb2009-12-09 20:35:53 +01001481 if (company == LM85_COMPANY_NATIONAL) {
1482 switch (verstep) {
1483 case LM85_VERSTEP_LM85C:
1484 type_name = "lm85c";
1485 break;
1486 case LM85_VERSTEP_LM85B:
1487 type_name = "lm85b";
1488 break;
1489 case LM85_VERSTEP_LM96000_1:
1490 case LM85_VERSTEP_LM96000_2:
1491 /* Check for Winbond WPCD377I */
1492 if (lm85_is_fake(client)) {
1493 dev_dbg(&adapter->dev,
1494 "Found Winbond WPCD377I, ignoring\n");
1495 return -ENODEV;
1496 }
Jean Delvare590e8532014-06-11 18:35:56 +02001497 type_name = "lm85";
Jean Delvared42a2eb2009-12-09 20:35:53 +01001498 break;
Jean Delvare69fc1fe2008-10-17 17:51:13 +02001499 }
Jean Delvared42a2eb2009-12-09 20:35:53 +01001500 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1501 switch (verstep) {
1502 case LM85_VERSTEP_ADM1027:
1503 type_name = "adm1027";
1504 break;
1505 case LM85_VERSTEP_ADT7463:
1506 case LM85_VERSTEP_ADT7463C:
1507 type_name = "adt7463";
1508 break;
1509 case LM85_VERSTEP_ADT7468_1:
1510 case LM85_VERSTEP_ADT7468_2:
1511 type_name = "adt7468";
1512 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 }
Jean Delvared42a2eb2009-12-09 20:35:53 +01001514 } else if (company == LM85_COMPANY_SMSC) {
1515 switch (verstep) {
1516 case LM85_VERSTEP_EMC6D100_A0:
1517 case LM85_VERSTEP_EMC6D100_A1:
1518 /* Note: we can't tell a '100 from a '101 */
1519 type_name = "emc6d100";
1520 break;
1521 case LM85_VERSTEP_EMC6D102:
1522 type_name = "emc6d102";
1523 break;
Jan Beulichf065a932011-02-18 03:18:26 -05001524 case LM85_VERSTEP_EMC6D103_A0:
1525 case LM85_VERSTEP_EMC6D103_A1:
1526 type_name = "emc6d103";
1527 break;
Jan Beulichf065a932011-02-18 03:18:26 -05001528 case LM85_VERSTEP_EMC6D103S:
1529 type_name = "emc6d103s";
1530 break;
Jean Delvared42a2eb2009-12-09 20:35:53 +01001531 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532 }
1533
Jean Delvare590e8532014-06-11 18:35:56 +02001534 if (!type_name)
1535 return -ENODEV;
1536
Jean Delvare67712d02008-10-17 17:51:14 +02001537 strlcpy(info->type, type_name, I2C_NAME_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538
Jean Delvare67712d02008-10-17 17:51:14 +02001539 return 0;
1540}
1541
Axel Lin746f6882014-07-23 12:29:11 +08001542static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id)
Guenter Roeckbc6db2b2011-02-25 08:26:47 -08001543{
Axel Lin746f6882014-07-23 12:29:11 +08001544 struct device *dev = &client->dev;
1545 struct device *hwmon_dev;
Jean Delvare67712d02008-10-17 17:51:14 +02001546 struct lm85_data *data;
Axel Lin746f6882014-07-23 12:29:11 +08001547 int idx = 0;
Jean Delvare67712d02008-10-17 17:51:14 +02001548
Axel Lin746f6882014-07-23 12:29:11 +08001549 data = devm_kzalloc(dev, sizeof(struct lm85_data), GFP_KERNEL);
Jean Delvare67712d02008-10-17 17:51:14 +02001550 if (!data)
1551 return -ENOMEM;
1552
Axel Lin746f6882014-07-23 12:29:11 +08001553 data->client = client;
Jean Delvare67712d02008-10-17 17:51:14 +02001554 data->type = id->driver_data;
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001555 mutex_init(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556
Jean Delvare67712d02008-10-17 17:51:14 +02001557 /* Fill in the chip specific driver values */
1558 switch (data->type) {
1559 case adm1027:
1560 case adt7463:
Jean Delvarefa7a5792010-10-28 20:31:50 +02001561 case adt7468:
Jean Delvare67712d02008-10-17 17:51:14 +02001562 case emc6d100:
1563 case emc6d102:
Jan Beulichf065a932011-02-18 03:18:26 -05001564 case emc6d103:
Guenter Roeck06923f82011-02-19 08:27:47 -08001565 case emc6d103s:
Jean Delvare67712d02008-10-17 17:51:14 +02001566 data->freq_map = adm1027_freq_map;
1567 break;
1568 default:
1569 data->freq_map = lm85_freq_map;
1570 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571
1572 /* Set the VRM version */
Jean Delvare303760b2005-07-31 21:52:01 +02001573 data->vrm = vid_which_vrm();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574
1575 /* Initialize the LM85 chip */
Jean Delvaree89e22b2008-06-25 08:47:35 -04001576 lm85_init_client(client);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577
Axel Lin746f6882014-07-23 12:29:11 +08001578 /* sysfs hooks */
1579 data->groups[idx++] = &lm85_group;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580
Guenter Roeck06923f82011-02-19 08:27:47 -08001581 /* minctl and temp_off exist on all chips except emc6d103s */
1582 if (data->type != emc6d103s) {
Axel Lin746f6882014-07-23 12:29:11 +08001583 data->groups[idx++] = &lm85_group_minctl;
1584 data->groups[idx++] = &lm85_group_temp_off;
Guenter Roeck06923f82011-02-19 08:27:47 -08001585 }
1586
Guenter Roeck09770b22012-01-14 20:47:36 -08001587 /*
1588 * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
1589 * as a sixth digital VID input rather than an analog input.
1590 */
Guenter Roeckde248802011-02-25 08:19:42 -08001591 if (data->type == adt7463 || data->type == adt7468) {
1592 u8 vid = lm85_read_value(client, LM85_REG_VID);
1593 if (vid & 0x80)
1594 data->has_vid5 = true;
1595 }
1596
Axel Lin746f6882014-07-23 12:29:11 +08001597 if (!data->has_vid5)
1598 data->groups[idx++] = &lm85_group_in4;
Jean Delvare6b9aad22007-07-05 20:37:21 +02001599
1600 /* The EMC6D100 has 3 additional voltage inputs */
Axel Lin746f6882014-07-23 12:29:11 +08001601 if (data->type == emc6d100)
1602 data->groups[idx++] = &lm85_group_in567;
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001603
Axel Lin746f6882014-07-23 12:29:11 +08001604 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
1605 data, data->groups);
1606 return PTR_ERR_OR_ZERO(hwmon_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607}
1608
Axel Lin6fd5dd52014-07-23 12:27:39 +08001609static const struct i2c_device_id lm85_id[] = {
1610 { "adm1027", adm1027 },
1611 { "adt7463", adt7463 },
1612 { "adt7468", adt7468 },
1613 { "lm85", lm85 },
1614 { "lm85b", lm85 },
1615 { "lm85c", lm85 },
1616 { "emc6d100", emc6d100 },
1617 { "emc6d101", emc6d100 },
1618 { "emc6d102", emc6d102 },
1619 { "emc6d103", emc6d103 },
1620 { "emc6d103s", emc6d103s },
1621 { }
1622};
1623MODULE_DEVICE_TABLE(i2c, lm85_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624
Axel Lin6fd5dd52014-07-23 12:27:39 +08001625static struct i2c_driver lm85_driver = {
1626 .class = I2C_CLASS_HWMON,
1627 .driver = {
1628 .name = "lm85",
1629 },
1630 .probe = lm85_probe,
Axel Lin6fd5dd52014-07-23 12:27:39 +08001631 .id_table = lm85_id,
1632 .detect = lm85_detect,
1633 .address_list = normal_i2c,
1634};
Linus Torvalds1da177e2005-04-16 15:20:36 -07001635
Axel Linf0967ee2012-01-20 15:38:18 +08001636module_i2c_driver(lm85_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638MODULE_LICENSE("GPL");
Jean Delvare1f448092008-04-29 14:03:37 +02001639MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1640 "Margit Schubert-While <margitsw@t-online.de>, "
Jean Delvaree89e22b2008-06-25 08:47:35 -04001641 "Justin Thiessen <jthiessen@penguincomputing.com>");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642MODULE_DESCRIPTION("LM85-B, LM85-C driver");