blob: 864c7d999e0cf2973a1520644b3bec20ad236758 [file] [log] [blame]
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>
8 * Copyright (C) 2007--2009 Jean Delvare <khali@linux-fr.org>
9 *
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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38/* Addresses to scan */
Mark M. Hoffman25e9c862008-02-17 22:28:03 -050039static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
Jean Delvaree5e9f442009-12-14 21:17:27 +010041enum chips {
42 any_chip, lm85b, lm85c,
43 adm1027, adt7463, adt7468,
Guenter Roeck06923f82011-02-19 08:27:47 -080044 emc6d100, emc6d102, emc6d103, emc6d103s
Jean Delvaree5e9f442009-12-14 21:17:27 +010045};
Linus Torvalds1da177e2005-04-16 15:20:36 -070046
47/* The LM85 registers */
48
Guenter Roeck09770b22012-01-14 20:47:36 -080049#define LM85_REG_IN(nr) (0x20 + (nr))
50#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
51#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Guenter Roeck09770b22012-01-14 20:47:36 -080053#define LM85_REG_TEMP(nr) (0x25 + (nr))
54#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
55#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070056
57/* Fan speeds are LSB, MSB (2 bytes) */
Guenter Roeck09770b22012-01-14 20:47:36 -080058#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
59#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
Guenter Roeck09770b22012-01-14 20:47:36 -080061#define LM85_REG_PWM(nr) (0x30 + (nr))
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Guenter Roeck09770b22012-01-14 20:47:36 -080063#define LM85_REG_COMPANY 0x3e
64#define LM85_REG_VERSTEP 0x3f
Darrick J. Wong79b92f22008-11-12 13:26:59 -080065
Guenter Roeck09770b22012-01-14 20:47:36 -080066#define ADT7468_REG_CFG5 0x7c
67#define ADT7468_OFF64 (1 << 0)
68#define ADT7468_HFPWM (1 << 1)
69#define IS_ADT7468_OFF64(data) \
Darrick J. Wong79b92f22008-11-12 13:26:59 -080070 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
Guenter Roeck09770b22012-01-14 20:47:36 -080071#define IS_ADT7468_HFPWM(data) \
Jean Delvaref6c61cf2010-10-28 20:31:50 +020072 ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM))
Darrick J. Wong79b92f22008-11-12 13:26:59 -080073
Linus Torvalds1da177e2005-04-16 15:20:36 -070074/* These are the recognized values for the above regs */
Guenter Roeck09770b22012-01-14 20:47:36 -080075#define LM85_COMPANY_NATIONAL 0x01
76#define LM85_COMPANY_ANALOG_DEV 0x41
77#define LM85_COMPANY_SMSC 0x5c
78#define LM85_VERSTEP_VMASK 0xf0
79#define LM85_VERSTEP_GENERIC 0x60
80#define LM85_VERSTEP_GENERIC2 0x70
81#define LM85_VERSTEP_LM85C 0x60
82#define LM85_VERSTEP_LM85B 0x62
83#define LM85_VERSTEP_LM96000_1 0x68
84#define LM85_VERSTEP_LM96000_2 0x69
85#define LM85_VERSTEP_ADM1027 0x60
86#define LM85_VERSTEP_ADT7463 0x62
87#define LM85_VERSTEP_ADT7463C 0x6A
88#define LM85_VERSTEP_ADT7468_1 0x71
89#define LM85_VERSTEP_ADT7468_2 0x72
90#define LM85_VERSTEP_EMC6D100_A0 0x60
91#define LM85_VERSTEP_EMC6D100_A1 0x61
92#define LM85_VERSTEP_EMC6D102 0x65
93#define LM85_VERSTEP_EMC6D103_A0 0x68
94#define LM85_VERSTEP_EMC6D103_A1 0x69
95#define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
Guenter Roeck09770b22012-01-14 20:47:36 -080097#define LM85_REG_CONFIG 0x40
Linus Torvalds1da177e2005-04-16 15:20:36 -070098
Guenter Roeck09770b22012-01-14 20:47:36 -080099#define LM85_REG_ALARM1 0x41
100#define LM85_REG_ALARM2 0x42
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101
Guenter Roeck09770b22012-01-14 20:47:36 -0800102#define LM85_REG_VID 0x43
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
104/* Automated FAN control */
Guenter Roeck09770b22012-01-14 20:47:36 -0800105#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
106#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
107#define LM85_REG_AFAN_SPIKE1 0x62
108#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
109#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
110#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
111#define LM85_REG_AFAN_HYST1 0x6d
112#define LM85_REG_AFAN_HYST2 0x6e
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
Guenter Roeck09770b22012-01-14 20:47:36 -0800114#define ADM1027_REG_EXTEND_ADC1 0x76
115#define ADM1027_REG_EXTEND_ADC2 0x77
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116
117#define EMC6D100_REG_ALARM3 0x7d
118/* IN5, IN6 and IN7 */
Guenter Roeck09770b22012-01-14 20:47:36 -0800119#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
120#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
121#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
122#define EMC6D102_REG_EXTEND_ADC1 0x85
123#define EMC6D102_REG_EXTEND_ADC2 0x86
124#define EMC6D102_REG_EXTEND_ADC3 0x87
125#define EMC6D102_REG_EXTEND_ADC4 0x88
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127
Guenter Roeck09770b22012-01-14 20:47:36 -0800128/*
129 * Conversions. Rounding and limit checking is only done on the TO_REG
130 * variants. Note that you should be a bit careful with which arguments
131 * these macros are called: arguments may be evaluated more than once.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 */
133
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300134/* IN are scaled according to built-in resistors */
Jean Delvaree89e22b2008-06-25 08:47:35 -0400135static const int lm85_scaling[] = { /* .001 Volts */
Jean Delvare1f448092008-04-29 14:03:37 +0200136 2500, 2250, 3300, 5000, 12000,
137 3300, 1500, 1800 /*EMC6D100*/
138};
139#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
Jean Delvare1f448092008-04-29 14:03:37 +0200141#define INS_TO_REG(n, val) \
142 SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143
Jean Delvare1f448092008-04-29 14:03:37 +0200144#define INSEXT_FROM_REG(n, val, ext) \
Jean Delvare5a4d3ef2007-07-05 20:38:32 +0200145 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146
Jean Delvare1f448092008-04-29 14:03:37 +0200147#define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n])
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
149/* FAN speed is measured using 90kHz clock */
Jean Delvare63f281a2007-07-05 20:39:40 +0200150static inline u16 FAN_TO_REG(unsigned long val)
151{
152 if (!val)
153 return 0xffff;
154 return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
155}
Jean Delvare1f448092008-04-29 14:03:37 +0200156#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
157 5400000 / (val))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
159/* Temperature is reported in .001 degC increments */
160#define TEMP_TO_REG(val) \
Jean Delvare1f448092008-04-29 14:03:37 +0200161 SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
162#define TEMPEXT_FROM_REG(val, ext) \
Jean Delvare5a4d3ef2007-07-05 20:38:32 +0200163 SCALE(((val) << 4) + (ext), 16, 1000)
164#define TEMP_FROM_REG(val) ((val) * 1000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
Jean Delvare1f448092008-04-29 14:03:37 +0200166#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167#define PWM_FROM_REG(val) (val)
168
169
Guenter Roeck09770b22012-01-14 20:47:36 -0800170/*
171 * ZONEs have the following parameters:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172 * Limit (low) temp, 1. degC
173 * Hysteresis (below limit), 1. degC (0-15)
174 * Range of speed control, .1 degC (2-80)
175 * Critical (high) temp, 1. degC
176 *
177 * FAN PWMs have the following parameters:
178 * Reference Zone, 1, 2, 3, etc.
179 * Spinup time, .05 sec
180 * PWM value at limit/low temp, 1 count
181 * PWM Frequency, 1. Hz
182 * PWM is Min or OFF below limit, flag
183 * Invert PWM output, flag
184 *
185 * Some chips filter the temp, others the fan.
186 * Filter constant (or disabled) .1 seconds
187 */
188
189/* These are the zone temperature range encodings in .001 degree C */
Jean Delvaree89e22b2008-06-25 08:47:35 -0400190static const int lm85_range_map[] = {
Jean Delvare1f448092008-04-29 14:03:37 +0200191 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000,
192 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000
193};
194
195static int RANGE_TO_REG(int range)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196{
197 int i;
198
Jean Delvared38b1492008-04-03 10:40:39 +0200199 /* Find the closest match */
Jean Delvare1b92ada2008-10-17 17:51:14 +0200200 for (i = 0; i < 15; ++i) {
201 if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2)
202 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 }
Jean Delvared38b1492008-04-03 10:40:39 +0200204
Jean Delvare1b92ada2008-10-17 17:51:14 +0200205 return i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206}
Jean Delvare1f448092008-04-29 14:03:37 +0200207#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209/* These are the PWM frequency encodings */
Jean Delvare34e7dc62008-10-17 17:51:13 +0200210static const int lm85_freq_map[8] = { /* 1 Hz */
Jean Delvare8a0795d2008-10-17 17:51:14 +0200211 10, 15, 23, 30, 38, 47, 61, 94
212};
213static const int adm1027_freq_map[8] = { /* 1 Hz */
214 11, 15, 22, 29, 35, 44, 59, 88
Jean Delvare1f448092008-04-29 14:03:37 +0200215};
216
Jean Delvare8a0795d2008-10-17 17:51:14 +0200217static int FREQ_TO_REG(const int *map, int freq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218{
219 int i;
220
Jean Delvare86010c92008-10-17 17:51:13 +0200221 /* Find the closest match */
Jean Delvare1f448092008-04-29 14:03:37 +0200222 for (i = 0; i < 7; ++i)
Jean Delvare8a0795d2008-10-17 17:51:14 +0200223 if (freq <= (map[i] + map[i + 1]) / 2)
Jean Delvare1f448092008-04-29 14:03:37 +0200224 break;
Jean Delvaree89e22b2008-06-25 08:47:35 -0400225 return i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226}
Jean Delvare8a0795d2008-10-17 17:51:14 +0200227
228static int FREQ_FROM_REG(const int *map, u8 reg)
229{
230 return map[reg & 0x07];
231}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232
Guenter Roeck09770b22012-01-14 20:47:36 -0800233/*
234 * Since we can't use strings, I'm abusing these numbers
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 * to stand in for the following meanings:
236 * 1 -- PWM responds to Zone 1
237 * 2 -- PWM responds to Zone 2
238 * 3 -- PWM responds to Zone 3
239 * 23 -- PWM responds to the higher temp of Zone 2 or 3
240 * 123 -- PWM responds to highest of Zone 1, 2, or 3
241 * 0 -- PWM is always at 0% (ie, off)
242 * -1 -- PWM is always at 100%
243 * -2 -- PWM responds to manual control
244 */
245
Jean Delvaree89e22b2008-06-25 08:47:35 -0400246static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
247#define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248
Jean Delvare1f448092008-04-29 14:03:37 +0200249static int ZONE_TO_REG(int zone)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250{
251 int i;
252
Jean Delvare1f448092008-04-29 14:03:37 +0200253 for (i = 0; i <= 7; ++i)
254 if (zone == lm85_zone_map[i])
255 break;
256 if (i > 7) /* Not found. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 i = 3; /* Always 100% */
Jean Delvaree89e22b2008-06-25 08:47:35 -0400258 return i << 5;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259}
260
Jean Delvare1f448092008-04-29 14:03:37 +0200261#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
262#define HYST_FROM_REG(val) ((val) * 1000)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
Guenter Roeck09770b22012-01-14 20:47:36 -0800264/*
265 * Chip sampling rates
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 *
267 * Some sensors are not updated more frequently than once per second
268 * so it doesn't make sense to read them more often than that.
269 * We cache the results and return the saved data if the driver
270 * is called again before a second has elapsed.
271 *
272 * Also, there is significant configuration data for this chip
273 * given the automatic PWM fan control that is possible. There
274 * are about 47 bytes of config data to only 22 bytes of actual
275 * readings. So, we keep the config data up to date in the cache
276 * when it is written and only sample it once every 1 *minute*
277 */
278#define LM85_DATA_INTERVAL (HZ + HZ / 2)
279#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
280
Guenter Roeck09770b22012-01-14 20:47:36 -0800281/*
282 * LM85 can automatically adjust fan speeds based on temperature
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 * This structure encapsulates an entire Zone config. There are
284 * three zones (one for each temperature input) on the lm85
285 */
286struct lm85_zone {
287 s8 limit; /* Low temp limit */
288 u8 hyst; /* Low limit hysteresis. (0-15) */
289 u8 range; /* Temp range, encoded */
290 s8 critical; /* "All fans ON" temp limit */
Guenter Roeck09770b22012-01-14 20:47:36 -0800291 u8 max_desired; /*
292 * Actual "max" temperature specified. Preserved
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 * to prevent "drift" as other autofan control
294 * values change.
295 */
296};
297
298struct lm85_autofan {
299 u8 config; /* Register value */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 u8 min_pwm; /* Minimum PWM value, encoded */
301 u8 min_off; /* Min PWM or OFF below "limit", flag */
302};
303
Guenter Roeck09770b22012-01-14 20:47:36 -0800304/*
305 * For each registered chip, we need to keep some data in memory.
306 * The structure is dynamically allocated.
307 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308struct lm85_data {
Tony Jones1beeffe2007-08-20 13:46:20 -0700309 struct device *hwmon_dev;
Jean Delvare8a0795d2008-10-17 17:51:14 +0200310 const int *freq_map;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 enum chips type;
312
Guenter Roeckde248802011-02-25 08:19:42 -0800313 bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */
314
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100315 struct mutex update_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 int valid; /* !=0 if following fields are valid */
317 unsigned long last_reading; /* In jiffies */
318 unsigned long last_config; /* In jiffies */
319
320 u8 in[8]; /* Register value */
321 u8 in_max[8]; /* Register value */
322 u8 in_min[8]; /* Register value */
323 s8 temp[3]; /* Register value */
324 s8 temp_min[3]; /* Register value */
325 s8 temp_max[3]; /* Register value */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 u16 fan[4]; /* Register value */
327 u16 fan_min[4]; /* Register value */
328 u8 pwm[3]; /* Register value */
Jean Delvare34e7dc62008-10-17 17:51:13 +0200329 u8 pwm_freq[3]; /* Register encoding */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 u8 temp_ext[3]; /* Decoded values */
331 u8 in_ext[8]; /* Decoded values */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 u8 vid; /* Register value */
333 u8 vrm; /* VRM version */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334 u32 alarms; /* Register encoding, combined */
Darrick J. Wong79b92f22008-11-12 13:26:59 -0800335 u8 cfg5; /* Config Register 5 on ADT7468 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 struct lm85_autofan autofan[3];
337 struct lm85_zone zone[3];
338};
339
Jean Delvare310ec792009-12-14 21:17:23 +0100340static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info);
Jean Delvare67712d02008-10-17 17:51:14 +0200341static int lm85_probe(struct i2c_client *client,
342 const struct i2c_device_id *id);
343static int lm85_remove(struct i2c_client *client);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
Darren Jenkinsf6c27fc2006-02-27 23:14:58 +0100345static int lm85_read_value(struct i2c_client *client, u8 reg);
Jean Delvaree89e22b2008-06-25 08:47:35 -0400346static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347static struct lm85_data *lm85_update_device(struct device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348
349
Jean Delvare67712d02008-10-17 17:51:14 +0200350static const struct i2c_device_id lm85_id[] = {
351 { "adm1027", adm1027 },
352 { "adt7463", adt7463 },
Darrick J. Wongc15ade62009-03-10 12:55:47 -0700353 { "adt7468", adt7468 },
Jean Delvare67712d02008-10-17 17:51:14 +0200354 { "lm85", any_chip },
355 { "lm85b", lm85b },
356 { "lm85c", lm85c },
357 { "emc6d100", emc6d100 },
358 { "emc6d101", emc6d100 },
359 { "emc6d102", emc6d102 },
Jan Beulichf065a932011-02-18 03:18:26 -0500360 { "emc6d103", emc6d103 },
Guenter Roeck06923f82011-02-19 08:27:47 -0800361 { "emc6d103s", emc6d103s },
Jean Delvare67712d02008-10-17 17:51:14 +0200362 { }
363};
364MODULE_DEVICE_TABLE(i2c, lm85_id);
365
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366static struct i2c_driver lm85_driver = {
Jean Delvare67712d02008-10-17 17:51:14 +0200367 .class = I2C_CLASS_HWMON,
Laurent Riffardcdaf7932005-11-26 20:37:41 +0100368 .driver = {
Laurent Riffardcdaf7932005-11-26 20:37:41 +0100369 .name = "lm85",
370 },
Jean Delvare67712d02008-10-17 17:51:14 +0200371 .probe = lm85_probe,
372 .remove = lm85_remove,
373 .id_table = lm85_id,
374 .detect = lm85_detect,
Jean Delvarec3813d62009-12-14 21:17:25 +0100375 .address_list = normal_i2c,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376};
377
378
379/* 4 Fans */
Jean Delvareb353a482007-07-05 20:36:12 +0200380static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
381 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382{
Jean Delvareb353a482007-07-05 20:36:12 +0200383 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200385 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386}
Jean Delvareb353a482007-07-05 20:36:12 +0200387
388static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
389 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390{
Jean Delvareb353a482007-07-05 20:36:12 +0200391 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200393 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394}
Jean Delvareb353a482007-07-05 20:36:12 +0200395
396static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
397 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398{
Jean Delvareb353a482007-07-05 20:36:12 +0200399 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 struct i2c_client *client = to_i2c_client(dev);
401 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800402 unsigned long val;
403 int err;
404
405 err = kstrtoul(buf, 10, &val);
406 if (err)
407 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100409 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 data->fan_min[nr] = FAN_TO_REG(val);
411 lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100412 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 return count;
414}
415
416#define show_fan_offset(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200417static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
418 show_fan, NULL, offset - 1); \
419static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
420 show_fan_min, set_fan_min, offset - 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
422show_fan_offset(1);
423show_fan_offset(2);
424show_fan_offset(3);
425show_fan_offset(4);
426
427/* vid, vrm, alarms */
428
Jean Delvare1f448092008-04-29 14:03:37 +0200429static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
430 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431{
432 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare9c516ef2005-11-26 20:07:54 +0100433 int vid;
434
Guenter Roeckde248802011-02-25 08:19:42 -0800435 if (data->has_vid5) {
Jean Delvare9c516ef2005-11-26 20:07:54 +0100436 /* 6-pin VID (VRM 10) */
437 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
438 } else {
439 /* 5-pin VID (VRM 9) */
440 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
441 }
442
443 return sprintf(buf, "%d\n", vid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444}
445
446static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
447
Jean Delvare1f448092008-04-29 14:03:37 +0200448static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
449 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450{
Jean Delvare90d66192007-10-08 18:24:35 +0200451 struct lm85_data *data = dev_get_drvdata(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 return sprintf(buf, "%ld\n", (long) data->vrm);
453}
454
Jean Delvare1f448092008-04-29 14:03:37 +0200455static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
456 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457{
Jean Delvare8f74efe2007-12-01 11:25:33 +0100458 struct lm85_data *data = dev_get_drvdata(dev);
Guenter Roeck09770b22012-01-14 20:47:36 -0800459 unsigned long val;
460 int err;
461
462 err = kstrtoul(buf, 10, &val);
463 if (err)
464 return err;
465
466 data->vrm = val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 return count;
468}
469
470static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
471
Jean Delvare1f448092008-04-29 14:03:37 +0200472static ssize_t show_alarms_reg(struct device *dev, struct device_attribute
473 *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474{
475 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare68188ba2005-05-16 18:52:38 +0200476 return sprintf(buf, "%u\n", data->alarms);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477}
478
479static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
480
Jean Delvarebf76e9d2007-07-05 20:37:58 +0200481static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
482 char *buf)
483{
484 int nr = to_sensor_dev_attr(attr)->index;
485 struct lm85_data *data = lm85_update_device(dev);
486 return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
487}
488
489static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
490static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
491static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
492static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
493static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
494static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
495static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
496static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
497static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
498static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
499static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
500static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
501static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
502static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
503static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
504static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
505static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
506
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507/* pwm */
508
Jean Delvareb353a482007-07-05 20:36:12 +0200509static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
510 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511{
Jean Delvareb353a482007-07-05 20:36:12 +0200512 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200514 return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515}
Jean Delvareb353a482007-07-05 20:36:12 +0200516
517static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
518 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519{
Jean Delvareb353a482007-07-05 20:36:12 +0200520 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 struct i2c_client *client = to_i2c_client(dev);
522 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800523 unsigned long val;
524 int err;
525
526 err = kstrtoul(buf, 10, &val);
527 if (err)
528 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100530 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 data->pwm[nr] = PWM_TO_REG(val);
532 lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100533 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534 return count;
535}
Jean Delvareb353a482007-07-05 20:36:12 +0200536
537static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
538 *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539{
Jean Delvareb353a482007-07-05 20:36:12 +0200540 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare4b4df952007-12-03 23:23:21 +0100542 int pwm_zone, enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700543
544 pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
Jean Delvare4b4df952007-12-03 23:23:21 +0100545 switch (pwm_zone) {
546 case -1: /* PWM is always at 100% */
547 enable = 0;
548 break;
549 case 0: /* PWM is always at 0% */
550 case -2: /* PWM responds to manual control */
551 enable = 1;
552 break;
553 default: /* PWM in automatic mode */
554 enable = 2;
555 }
556 return sprintf(buf, "%d\n", enable);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557}
558
Jean Delvare455f7912007-12-03 23:28:42 +0100559static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
560 *attr, const char *buf, size_t count)
561{
562 int nr = to_sensor_dev_attr(attr)->index;
563 struct i2c_client *client = to_i2c_client(dev);
564 struct lm85_data *data = i2c_get_clientdata(client);
Jean Delvare455f7912007-12-03 23:28:42 +0100565 u8 config;
Guenter Roeck09770b22012-01-14 20:47:36 -0800566 unsigned long val;
567 int err;
568
569 err = kstrtoul(buf, 10, &val);
570 if (err)
571 return err;
Jean Delvare455f7912007-12-03 23:28:42 +0100572
573 switch (val) {
574 case 0:
575 config = 3;
576 break;
577 case 1:
578 config = 7;
579 break;
580 case 2:
Guenter Roeck09770b22012-01-14 20:47:36 -0800581 /*
582 * Here we have to choose arbitrarily one of the 5 possible
583 * configurations; I go for the safest
584 */
Jean Delvare455f7912007-12-03 23:28:42 +0100585 config = 6;
586 break;
587 default:
588 return -EINVAL;
589 }
590
591 mutex_lock(&data->update_lock);
592 data->autofan[nr].config = lm85_read_value(client,
593 LM85_REG_AFAN_CONFIG(nr));
594 data->autofan[nr].config = (data->autofan[nr].config & ~0xe0)
595 | (config << 5);
596 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
597 data->autofan[nr].config);
598 mutex_unlock(&data->update_lock);
599 return count;
600}
601
Jean Delvare34e7dc62008-10-17 17:51:13 +0200602static ssize_t show_pwm_freq(struct device *dev,
603 struct device_attribute *attr, char *buf)
604{
605 int nr = to_sensor_dev_attr(attr)->index;
606 struct lm85_data *data = lm85_update_device(dev);
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200607 int freq;
608
609 if (IS_ADT7468_HFPWM(data))
610 freq = 22500;
611 else
612 freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]);
613
614 return sprintf(buf, "%d\n", freq);
Jean Delvare34e7dc62008-10-17 17:51:13 +0200615}
616
617static ssize_t set_pwm_freq(struct device *dev,
618 struct device_attribute *attr, const char *buf, size_t count)
619{
620 int nr = to_sensor_dev_attr(attr)->index;
621 struct i2c_client *client = to_i2c_client(dev);
622 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800623 unsigned long val;
624 int err;
625
626 err = kstrtoul(buf, 10, &val);
627 if (err)
628 return err;
Jean Delvare34e7dc62008-10-17 17:51:13 +0200629
630 mutex_lock(&data->update_lock);
Guenter Roeck09770b22012-01-14 20:47:36 -0800631 /*
632 * The ADT7468 has a special high-frequency PWM output mode,
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200633 * where all PWM outputs are driven by a 22.5 kHz clock.
Guenter Roeck09770b22012-01-14 20:47:36 -0800634 * This might confuse the user, but there's not much we can do.
635 */
Jean Delvaref6c61cf2010-10-28 20:31:50 +0200636 if (data->type == adt7468 && val >= 11300) { /* High freq. mode */
637 data->cfg5 &= ~ADT7468_HFPWM;
638 lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
639 } else { /* Low freq. mode */
640 data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
641 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
642 (data->zone[nr].range << 4)
643 | data->pwm_freq[nr]);
644 if (data->type == adt7468) {
645 data->cfg5 |= ADT7468_HFPWM;
646 lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
647 }
648 }
Jean Delvare34e7dc62008-10-17 17:51:13 +0200649 mutex_unlock(&data->update_lock);
650 return count;
651}
652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653#define show_pwm_reg(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200654static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
655 show_pwm, set_pwm, offset - 1); \
Jean Delvare455f7912007-12-03 23:28:42 +0100656static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
Jean Delvare34e7dc62008-10-17 17:51:13 +0200657 show_pwm_enable, set_pwm_enable, offset - 1); \
658static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
659 show_pwm_freq, set_pwm_freq, offset - 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660
661show_pwm_reg(1);
662show_pwm_reg(2);
663show_pwm_reg(3);
664
665/* Voltages */
666
Jean Delvareb353a482007-07-05 20:36:12 +0200667static ssize_t show_in(struct device *dev, struct device_attribute *attr,
668 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669{
Jean Delvareb353a482007-07-05 20:36:12 +0200670 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200672 return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr],
673 data->in_ext[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674}
Jean Delvareb353a482007-07-05 20:36:12 +0200675
Jean Delvare1f448092008-04-29 14:03:37 +0200676static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
Jean Delvareb353a482007-07-05 20:36:12 +0200677 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678{
Jean Delvareb353a482007-07-05 20:36:12 +0200679 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200681 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682}
Jean Delvareb353a482007-07-05 20:36:12 +0200683
684static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
685 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686{
Jean Delvareb353a482007-07-05 20:36:12 +0200687 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688 struct i2c_client *client = to_i2c_client(dev);
689 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800690 long val;
691 int err;
692
693 err = kstrtol(buf, 10, &val);
694 if (err)
695 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100697 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 data->in_min[nr] = INS_TO_REG(nr, val);
699 lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100700 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 return count;
702}
Jean Delvareb353a482007-07-05 20:36:12 +0200703
704static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
705 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706{
Jean Delvareb353a482007-07-05 20:36:12 +0200707 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200709 return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710}
Jean Delvareb353a482007-07-05 20:36:12 +0200711
712static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
713 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714{
Jean Delvareb353a482007-07-05 20:36:12 +0200715 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 struct i2c_client *client = to_i2c_client(dev);
717 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800718 long val;
719 int err;
720
721 err = kstrtol(buf, 10, &val);
722 if (err)
723 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100725 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 data->in_max[nr] = INS_TO_REG(nr, val);
727 lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100728 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 return count;
730}
Jean Delvareb353a482007-07-05 20:36:12 +0200731
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732#define show_in_reg(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200733static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
734 show_in, NULL, offset); \
735static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
736 show_in_min, set_in_min, offset); \
737static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
738 show_in_max, set_in_max, offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739
740show_in_reg(0);
741show_in_reg(1);
742show_in_reg(2);
743show_in_reg(3);
744show_in_reg(4);
Jean Delvare6b9aad22007-07-05 20:37:21 +0200745show_in_reg(5);
746show_in_reg(6);
747show_in_reg(7);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748
749/* Temps */
750
Jean Delvareb353a482007-07-05 20:36:12 +0200751static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
752 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753{
Jean Delvareb353a482007-07-05 20:36:12 +0200754 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200756 return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr],
757 data->temp_ext[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758}
Jean Delvareb353a482007-07-05 20:36:12 +0200759
760static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
761 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762{
Jean Delvareb353a482007-07-05 20:36:12 +0200763 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200765 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766}
Jean Delvareb353a482007-07-05 20:36:12 +0200767
768static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
769 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770{
Jean Delvareb353a482007-07-05 20:36:12 +0200771 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 struct i2c_client *client = to_i2c_client(dev);
773 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800774 long val;
775 int err;
776
777 err = kstrtol(buf, 10, &val);
778 if (err)
779 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
Darrick J. Wong79b92f22008-11-12 13:26:59 -0800781 if (IS_ADT7468_OFF64(data))
782 val += 64;
783
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100784 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785 data->temp_min[nr] = TEMP_TO_REG(val);
786 lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100787 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788 return count;
789}
Jean Delvareb353a482007-07-05 20:36:12 +0200790
791static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
792 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793{
Jean Delvareb353a482007-07-05 20:36:12 +0200794 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200796 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797}
Jean Delvareb353a482007-07-05 20:36:12 +0200798
799static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
800 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801{
Jean Delvareb353a482007-07-05 20:36:12 +0200802 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803 struct i2c_client *client = to_i2c_client(dev);
804 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800805 long val;
806 int err;
807
808 err = kstrtol(buf, 10, &val);
809 if (err)
810 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811
Darrick J. Wong79b92f22008-11-12 13:26:59 -0800812 if (IS_ADT7468_OFF64(data))
813 val += 64;
814
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100815 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816 data->temp_max[nr] = TEMP_TO_REG(val);
817 lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100818 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 return count;
820}
Jean Delvareb353a482007-07-05 20:36:12 +0200821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822#define show_temp_reg(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200823static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
824 show_temp, NULL, offset - 1); \
825static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
826 show_temp_min, set_temp_min, offset - 1); \
827static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
828 show_temp_max, set_temp_max, offset - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829
830show_temp_reg(1);
831show_temp_reg(2);
832show_temp_reg(3);
833
834
835/* Automatic PWM control */
836
Jean Delvareb353a482007-07-05 20:36:12 +0200837static ssize_t show_pwm_auto_channels(struct device *dev,
838 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839{
Jean Delvareb353a482007-07-05 20:36:12 +0200840 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200842 return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843}
Jean Delvareb353a482007-07-05 20:36:12 +0200844
845static ssize_t set_pwm_auto_channels(struct device *dev,
846 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847{
Jean Delvareb353a482007-07-05 20:36:12 +0200848 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849 struct i2c_client *client = to_i2c_client(dev);
850 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800851 long val;
852 int err;
853
854 err = kstrtol(buf, 10, &val);
855 if (err)
856 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100858 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859 data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
Jean Delvare1f448092008-04-29 14:03:37 +0200860 | ZONE_TO_REG(val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861 lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
862 data->autofan[nr].config);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100863 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 return count;
865}
Jean Delvareb353a482007-07-05 20:36:12 +0200866
867static ssize_t show_pwm_auto_pwm_min(struct device *dev,
868 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869{
Jean Delvareb353a482007-07-05 20:36:12 +0200870 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200872 return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873}
Jean Delvareb353a482007-07-05 20:36:12 +0200874
875static ssize_t set_pwm_auto_pwm_min(struct device *dev,
876 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877{
Jean Delvareb353a482007-07-05 20:36:12 +0200878 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879 struct i2c_client *client = to_i2c_client(dev);
880 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800881 unsigned long val;
882 int err;
883
884 err = kstrtoul(buf, 10, &val);
885 if (err)
886 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100888 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889 data->autofan[nr].min_pwm = PWM_TO_REG(val);
890 lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
891 data->autofan[nr].min_pwm);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100892 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893 return count;
894}
Jean Delvareb353a482007-07-05 20:36:12 +0200895
896static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
897 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898{
Jean Delvareb353a482007-07-05 20:36:12 +0200899 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200901 return sprintf(buf, "%d\n", data->autofan[nr].min_off);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902}
Jean Delvareb353a482007-07-05 20:36:12 +0200903
904static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
905 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906{
Jean Delvareb353a482007-07-05 20:36:12 +0200907 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908 struct i2c_client *client = to_i2c_client(dev);
909 struct lm85_data *data = i2c_get_clientdata(client);
Jean Delvare7133e562008-04-12 19:56:35 +0200910 u8 tmp;
Guenter Roeck09770b22012-01-14 20:47:36 -0800911 long val;
912 int err;
913
914 err = kstrtol(buf, 10, &val);
915 if (err)
916 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100918 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 data->autofan[nr].min_off = val;
Jean Delvare7133e562008-04-12 19:56:35 +0200920 tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
921 tmp &= ~(0x20 << nr);
922 if (data->autofan[nr].min_off)
923 tmp |= 0x20 << nr;
924 lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp);
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100925 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926 return count;
927}
Jean Delvareb353a482007-07-05 20:36:12 +0200928
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929#define pwm_auto(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +0200930static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
931 S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
932 set_pwm_auto_channels, offset - 1); \
933static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
934 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \
935 set_pwm_auto_pwm_min, offset - 1); \
936static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
937 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
Jean Delvare34e7dc62008-10-17 17:51:13 +0200938 set_pwm_auto_pwm_minctl, offset - 1)
Jean Delvareb353a482007-07-05 20:36:12 +0200939
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940pwm_auto(1);
941pwm_auto(2);
942pwm_auto(3);
943
944/* Temperature settings for automatic PWM control */
945
Jean Delvareb353a482007-07-05 20:36:12 +0200946static ssize_t show_temp_auto_temp_off(struct device *dev,
947 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948{
Jean Delvareb353a482007-07-05 20:36:12 +0200949 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200951 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952 HYST_FROM_REG(data->zone[nr].hyst));
953}
Jean Delvareb353a482007-07-05 20:36:12 +0200954
955static ssize_t set_temp_auto_temp_off(struct device *dev,
956 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957{
Jean Delvareb353a482007-07-05 20:36:12 +0200958 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959 struct i2c_client *client = to_i2c_client(dev);
960 struct lm85_data *data = i2c_get_clientdata(client);
961 int min;
Guenter Roeck09770b22012-01-14 20:47:36 -0800962 long val;
963 int err;
964
965 err = kstrtol(buf, 10, &val);
966 if (err)
967 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100969 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 min = TEMP_FROM_REG(data->zone[nr].limit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971 data->zone[nr].hyst = HYST_TO_REG(min - val);
Jean Delvare1f448092008-04-29 14:03:37 +0200972 if (nr == 0 || nr == 1) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973 lm85_write_value(client, LM85_REG_AFAN_HYST1,
974 (data->zone[0].hyst << 4)
Jean Delvare1f448092008-04-29 14:03:37 +0200975 | data->zone[1].hyst);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 } else {
977 lm85_write_value(client, LM85_REG_AFAN_HYST2,
Jean Delvare1f448092008-04-29 14:03:37 +0200978 (data->zone[2].hyst << 4));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979 }
Ingo Molnar9a61bf62006-01-18 23:19:26 +0100980 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981 return count;
982}
Jean Delvareb353a482007-07-05 20:36:12 +0200983
984static ssize_t show_temp_auto_temp_min(struct device *dev,
985 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986{
Jean Delvareb353a482007-07-05 20:36:12 +0200987 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +0200989 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990}
Jean Delvareb353a482007-07-05 20:36:12 +0200991
992static ssize_t set_temp_auto_temp_min(struct device *dev,
993 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994{
Jean Delvareb353a482007-07-05 20:36:12 +0200995 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 struct i2c_client *client = to_i2c_client(dev);
997 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -0800998 long val;
999 int err;
1000
1001 err = kstrtol(buf, 10, &val);
1002 if (err)
1003 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001005 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006 data->zone[nr].limit = TEMP_TO_REG(val);
1007 lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
1008 data->zone[nr].limit);
1009
1010/* Update temp_auto_max and temp_auto_range */
1011 data->zone[nr].range = RANGE_TO_REG(
1012 TEMP_FROM_REG(data->zone[nr].max_desired) -
1013 TEMP_FROM_REG(data->zone[nr].limit));
1014 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
1015 ((data->zone[nr].range & 0x0f) << 4)
Jean Delvare34e7dc62008-10-17 17:51:13 +02001016 | (data->pwm_freq[nr] & 0x07));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001018 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019 return count;
1020}
Jean Delvareb353a482007-07-05 20:36:12 +02001021
1022static ssize_t show_temp_auto_temp_max(struct device *dev,
1023 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024{
Jean Delvareb353a482007-07-05 20:36:12 +02001025 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001027 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028 RANGE_FROM_REG(data->zone[nr].range));
1029}
Jean Delvareb353a482007-07-05 20:36:12 +02001030
1031static ssize_t set_temp_auto_temp_max(struct device *dev,
1032 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033{
Jean Delvareb353a482007-07-05 20:36:12 +02001034 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 struct i2c_client *client = to_i2c_client(dev);
1036 struct lm85_data *data = i2c_get_clientdata(client);
1037 int min;
Guenter Roeck09770b22012-01-14 20:47:36 -08001038 long val;
1039 int err;
1040
1041 err = kstrtol(buf, 10, &val);
1042 if (err)
1043 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001045 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046 min = TEMP_FROM_REG(data->zone[nr].limit);
1047 data->zone[nr].max_desired = TEMP_TO_REG(val);
1048 data->zone[nr].range = RANGE_TO_REG(
1049 val - min);
1050 lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
1051 ((data->zone[nr].range & 0x0f) << 4)
Jean Delvare34e7dc62008-10-17 17:51:13 +02001052 | (data->pwm_freq[nr] & 0x07));
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001053 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054 return count;
1055}
Jean Delvareb353a482007-07-05 20:36:12 +02001056
1057static ssize_t show_temp_auto_temp_crit(struct device *dev,
1058 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059{
Jean Delvareb353a482007-07-05 20:36:12 +02001060 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061 struct lm85_data *data = lm85_update_device(dev);
Jean Delvare1f448092008-04-29 14:03:37 +02001062 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063}
Jean Delvareb353a482007-07-05 20:36:12 +02001064
1065static ssize_t set_temp_auto_temp_crit(struct device *dev,
Jean Delvare1f448092008-04-29 14:03:37 +02001066 struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067{
Jean Delvareb353a482007-07-05 20:36:12 +02001068 int nr = to_sensor_dev_attr(attr)->index;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 struct i2c_client *client = to_i2c_client(dev);
1070 struct lm85_data *data = i2c_get_clientdata(client);
Guenter Roeck09770b22012-01-14 20:47:36 -08001071 long val;
1072 int err;
1073
1074 err = kstrtol(buf, 10, &val);
1075 if (err)
1076 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001078 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079 data->zone[nr].critical = TEMP_TO_REG(val);
1080 lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
1081 data->zone[nr].critical);
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001082 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 return count;
1084}
Jean Delvareb353a482007-07-05 20:36:12 +02001085
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086#define temp_auto(offset) \
Jean Delvareb353a482007-07-05 20:36:12 +02001087static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \
1088 S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \
1089 set_temp_auto_temp_off, offset - 1); \
1090static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \
1091 S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \
1092 set_temp_auto_temp_min, offset - 1); \
1093static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \
1094 S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \
1095 set_temp_auto_temp_max, offset - 1); \
1096static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \
1097 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \
1098 set_temp_auto_temp_crit, offset - 1);
1099
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100temp_auto(1);
1101temp_auto(2);
1102temp_auto(3);
1103
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001104static struct attribute *lm85_attributes[] = {
Jean Delvareb353a482007-07-05 20:36:12 +02001105 &sensor_dev_attr_fan1_input.dev_attr.attr,
1106 &sensor_dev_attr_fan2_input.dev_attr.attr,
1107 &sensor_dev_attr_fan3_input.dev_attr.attr,
1108 &sensor_dev_attr_fan4_input.dev_attr.attr,
1109 &sensor_dev_attr_fan1_min.dev_attr.attr,
1110 &sensor_dev_attr_fan2_min.dev_attr.attr,
1111 &sensor_dev_attr_fan3_min.dev_attr.attr,
1112 &sensor_dev_attr_fan4_min.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001113 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1114 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1115 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1116 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001117
1118 &sensor_dev_attr_pwm1.dev_attr.attr,
1119 &sensor_dev_attr_pwm2.dev_attr.attr,
1120 &sensor_dev_attr_pwm3.dev_attr.attr,
1121 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1122 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1123 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
Jean Delvare34e7dc62008-10-17 17:51:13 +02001124 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1125 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1126 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001127
1128 &sensor_dev_attr_in0_input.dev_attr.attr,
1129 &sensor_dev_attr_in1_input.dev_attr.attr,
1130 &sensor_dev_attr_in2_input.dev_attr.attr,
1131 &sensor_dev_attr_in3_input.dev_attr.attr,
1132 &sensor_dev_attr_in0_min.dev_attr.attr,
1133 &sensor_dev_attr_in1_min.dev_attr.attr,
1134 &sensor_dev_attr_in2_min.dev_attr.attr,
1135 &sensor_dev_attr_in3_min.dev_attr.attr,
1136 &sensor_dev_attr_in0_max.dev_attr.attr,
1137 &sensor_dev_attr_in1_max.dev_attr.attr,
1138 &sensor_dev_attr_in2_max.dev_attr.attr,
1139 &sensor_dev_attr_in3_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001140 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1141 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1142 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1143 &sensor_dev_attr_in3_alarm.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001144
1145 &sensor_dev_attr_temp1_input.dev_attr.attr,
1146 &sensor_dev_attr_temp2_input.dev_attr.attr,
1147 &sensor_dev_attr_temp3_input.dev_attr.attr,
1148 &sensor_dev_attr_temp1_min.dev_attr.attr,
1149 &sensor_dev_attr_temp2_min.dev_attr.attr,
1150 &sensor_dev_attr_temp3_min.dev_attr.attr,
1151 &sensor_dev_attr_temp1_max.dev_attr.attr,
1152 &sensor_dev_attr_temp2_max.dev_attr.attr,
1153 &sensor_dev_attr_temp3_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001154 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1155 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1156 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1157 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1158 &sensor_dev_attr_temp3_fault.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001159
1160 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1161 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1162 &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1163 &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1164 &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1165 &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
Jean Delvareb353a482007-07-05 20:36:12 +02001166
Jean Delvareb353a482007-07-05 20:36:12 +02001167 &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1168 &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1169 &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1170 &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1171 &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1172 &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1173 &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1174 &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1175 &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1176
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001177 &dev_attr_vrm.attr,
1178 &dev_attr_cpu0_vid.attr,
1179 &dev_attr_alarms.attr,
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001180 NULL
1181};
1182
1183static const struct attribute_group lm85_group = {
1184 .attrs = lm85_attributes,
1185};
1186
Guenter Roeck06923f82011-02-19 08:27:47 -08001187static struct attribute *lm85_attributes_minctl[] = {
1188 &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1189 &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1190 &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
Jean Delvare5f441e22011-04-29 16:33:36 +02001191 NULL
Guenter Roeck06923f82011-02-19 08:27:47 -08001192};
1193
1194static const struct attribute_group lm85_group_minctl = {
1195 .attrs = lm85_attributes_minctl,
1196};
1197
1198static struct attribute *lm85_attributes_temp_off[] = {
1199 &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1200 &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1201 &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
Jean Delvare5f441e22011-04-29 16:33:36 +02001202 NULL
Guenter Roeck06923f82011-02-19 08:27:47 -08001203};
1204
1205static const struct attribute_group lm85_group_temp_off = {
1206 .attrs = lm85_attributes_temp_off,
1207};
1208
Jean Delvare6b9aad22007-07-05 20:37:21 +02001209static struct attribute *lm85_attributes_in4[] = {
Jean Delvareb353a482007-07-05 20:36:12 +02001210 &sensor_dev_attr_in4_input.dev_attr.attr,
1211 &sensor_dev_attr_in4_min.dev_attr.attr,
1212 &sensor_dev_attr_in4_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001213 &sensor_dev_attr_in4_alarm.dev_attr.attr,
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001214 NULL
1215};
1216
Jean Delvare6b9aad22007-07-05 20:37:21 +02001217static const struct attribute_group lm85_group_in4 = {
1218 .attrs = lm85_attributes_in4,
1219};
1220
1221static struct attribute *lm85_attributes_in567[] = {
1222 &sensor_dev_attr_in5_input.dev_attr.attr,
1223 &sensor_dev_attr_in6_input.dev_attr.attr,
1224 &sensor_dev_attr_in7_input.dev_attr.attr,
1225 &sensor_dev_attr_in5_min.dev_attr.attr,
1226 &sensor_dev_attr_in6_min.dev_attr.attr,
1227 &sensor_dev_attr_in7_min.dev_attr.attr,
1228 &sensor_dev_attr_in5_max.dev_attr.attr,
1229 &sensor_dev_attr_in6_max.dev_attr.attr,
1230 &sensor_dev_attr_in7_max.dev_attr.attr,
Jean Delvarebf76e9d2007-07-05 20:37:58 +02001231 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1232 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1233 &sensor_dev_attr_in7_alarm.dev_attr.attr,
Jean Delvare6b9aad22007-07-05 20:37:21 +02001234 NULL
1235};
1236
1237static const struct attribute_group lm85_group_in567 = {
1238 .attrs = lm85_attributes_in567,
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001239};
1240
Jean Delvare5f44759472008-06-25 09:10:30 -04001241static void lm85_init_client(struct i2c_client *client)
1242{
1243 int value;
1244
1245 /* Start monitoring if needed */
1246 value = lm85_read_value(client, LM85_REG_CONFIG);
1247 if (!(value & 0x01)) {
1248 dev_info(&client->dev, "Starting monitoring\n");
1249 lm85_write_value(client, LM85_REG_CONFIG, value | 0x01);
1250 }
1251
1252 /* Warn about unusual configuration bits */
1253 if (value & 0x02)
1254 dev_warn(&client->dev, "Device configuration is locked\n");
1255 if (!(value & 0x04))
1256 dev_warn(&client->dev, "Device is not ready\n");
1257}
1258
Jean Delvare5cfaf332009-09-15 17:18:14 +02001259static int lm85_is_fake(struct i2c_client *client)
1260{
1261 /*
1262 * Differenciate between real LM96000 and Winbond WPCD377I. The latter
1263 * emulate the former except that it has no hardware monitoring function
1264 * so the readings are always 0.
1265 */
1266 int i;
1267 u8 in_temp, fan;
1268
1269 for (i = 0; i < 8; i++) {
1270 in_temp = i2c_smbus_read_byte_data(client, 0x20 + i);
1271 fan = i2c_smbus_read_byte_data(client, 0x28 + i);
1272 if (in_temp != 0x00 || fan != 0xff)
1273 return 0;
1274 }
1275
1276 return 1;
1277}
1278
Jean Delvare67712d02008-10-17 17:51:14 +02001279/* Return 0 if detection is successful, -ENODEV otherwise */
Jean Delvare310ec792009-12-14 21:17:23 +01001280static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281{
Jean Delvare67712d02008-10-17 17:51:14 +02001282 struct i2c_adapter *adapter = client->adapter;
1283 int address = client->addr;
Jean Delvaree89e22b2008-06-25 08:47:35 -04001284 const char *type_name;
Jean Delvared42a2eb2009-12-09 20:35:53 +01001285 int company, verstep;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286
Jean Delvaree89e22b2008-06-25 08:47:35 -04001287 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288 /* We need to be able to do byte I/O */
Jean Delvare67712d02008-10-17 17:51:14 +02001289 return -ENODEV;
Jean Delvare1f448092008-04-29 14:03:37 +02001290 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291
Jean Delvared42a2eb2009-12-09 20:35:53 +01001292 /* Determine the chip type */
1293 company = lm85_read_value(client, LM85_REG_COMPANY);
1294 verstep = lm85_read_value(client, LM85_REG_VERSTEP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295
Jean Delvared42a2eb2009-12-09 20:35:53 +01001296 dev_dbg(&adapter->dev, "Detecting device at 0x%02x with "
1297 "COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1298 address, company, verstep);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299
Jean Delvared42a2eb2009-12-09 20:35:53 +01001300 /* All supported chips have the version in common */
1301 if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC &&
1302 (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) {
1303 dev_dbg(&adapter->dev,
1304 "Autodetection failed: unsupported version\n");
1305 return -ENODEV;
1306 }
1307 type_name = "lm85";
1308
1309 /* Now, refine the detection */
1310 if (company == LM85_COMPANY_NATIONAL) {
1311 switch (verstep) {
1312 case LM85_VERSTEP_LM85C:
1313 type_name = "lm85c";
1314 break;
1315 case LM85_VERSTEP_LM85B:
1316 type_name = "lm85b";
1317 break;
1318 case LM85_VERSTEP_LM96000_1:
1319 case LM85_VERSTEP_LM96000_2:
1320 /* Check for Winbond WPCD377I */
1321 if (lm85_is_fake(client)) {
1322 dev_dbg(&adapter->dev,
1323 "Found Winbond WPCD377I, ignoring\n");
1324 return -ENODEV;
1325 }
1326 break;
Jean Delvare69fc1fe2008-10-17 17:51:13 +02001327 }
Jean Delvared42a2eb2009-12-09 20:35:53 +01001328 } else if (company == LM85_COMPANY_ANALOG_DEV) {
1329 switch (verstep) {
1330 case LM85_VERSTEP_ADM1027:
1331 type_name = "adm1027";
1332 break;
1333 case LM85_VERSTEP_ADT7463:
1334 case LM85_VERSTEP_ADT7463C:
1335 type_name = "adt7463";
1336 break;
1337 case LM85_VERSTEP_ADT7468_1:
1338 case LM85_VERSTEP_ADT7468_2:
1339 type_name = "adt7468";
1340 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341 }
Jean Delvared42a2eb2009-12-09 20:35:53 +01001342 } else if (company == LM85_COMPANY_SMSC) {
1343 switch (verstep) {
1344 case LM85_VERSTEP_EMC6D100_A0:
1345 case LM85_VERSTEP_EMC6D100_A1:
1346 /* Note: we can't tell a '100 from a '101 */
1347 type_name = "emc6d100";
1348 break;
1349 case LM85_VERSTEP_EMC6D102:
1350 type_name = "emc6d102";
1351 break;
Jan Beulichf065a932011-02-18 03:18:26 -05001352 case LM85_VERSTEP_EMC6D103_A0:
1353 case LM85_VERSTEP_EMC6D103_A1:
1354 type_name = "emc6d103";
1355 break;
Jan Beulichf065a932011-02-18 03:18:26 -05001356 case LM85_VERSTEP_EMC6D103S:
1357 type_name = "emc6d103s";
1358 break;
Jean Delvared42a2eb2009-12-09 20:35:53 +01001359 }
1360 } else {
1361 dev_dbg(&adapter->dev,
1362 "Autodetection failed: unknown vendor\n");
1363 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 }
1365
Jean Delvare67712d02008-10-17 17:51:14 +02001366 strlcpy(info->type, type_name, I2C_NAME_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367
Jean Delvare67712d02008-10-17 17:51:14 +02001368 return 0;
1369}
1370
Guenter Roeckbc6db2b2011-02-25 08:26:47 -08001371static void lm85_remove_files(struct i2c_client *client, struct lm85_data *data)
1372{
1373 sysfs_remove_group(&client->dev.kobj, &lm85_group);
Guenter Roeck06923f82011-02-19 08:27:47 -08001374 if (data->type != emc6d103s) {
1375 sysfs_remove_group(&client->dev.kobj, &lm85_group_minctl);
1376 sysfs_remove_group(&client->dev.kobj, &lm85_group_temp_off);
1377 }
Guenter Roeckbc6db2b2011-02-25 08:26:47 -08001378 if (!data->has_vid5)
1379 sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1380 if (data->type == emc6d100)
1381 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1382}
1383
Jean Delvare67712d02008-10-17 17:51:14 +02001384static int lm85_probe(struct i2c_client *client,
1385 const struct i2c_device_id *id)
1386{
1387 struct lm85_data *data;
1388 int err;
1389
1390 data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL);
1391 if (!data)
1392 return -ENOMEM;
1393
1394 i2c_set_clientdata(client, data);
1395 data->type = id->driver_data;
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001396 mutex_init(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397
Jean Delvare67712d02008-10-17 17:51:14 +02001398 /* Fill in the chip specific driver values */
1399 switch (data->type) {
1400 case adm1027:
1401 case adt7463:
Jean Delvarefa7a5792010-10-28 20:31:50 +02001402 case adt7468:
Jean Delvare67712d02008-10-17 17:51:14 +02001403 case emc6d100:
1404 case emc6d102:
Jan Beulichf065a932011-02-18 03:18:26 -05001405 case emc6d103:
Guenter Roeck06923f82011-02-19 08:27:47 -08001406 case emc6d103s:
Jean Delvare67712d02008-10-17 17:51:14 +02001407 data->freq_map = adm1027_freq_map;
1408 break;
1409 default:
1410 data->freq_map = lm85_freq_map;
1411 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412
1413 /* Set the VRM version */
Jean Delvare303760b2005-07-31 21:52:01 +02001414 data->vrm = vid_which_vrm();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415
1416 /* Initialize the LM85 chip */
Jean Delvaree89e22b2008-06-25 08:47:35 -04001417 lm85_init_client(client);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418
1419 /* Register sysfs hooks */
Jean Delvaree89e22b2008-06-25 08:47:35 -04001420 err = sysfs_create_group(&client->dev.kobj, &lm85_group);
1421 if (err)
Jean Delvaref9080372008-10-17 17:51:14 +02001422 goto err_kfree;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423
Guenter Roeck06923f82011-02-19 08:27:47 -08001424 /* minctl and temp_off exist on all chips except emc6d103s */
1425 if (data->type != emc6d103s) {
1426 err = sysfs_create_group(&client->dev.kobj, &lm85_group_minctl);
1427 if (err)
Jean Delvarebc4d45f2011-04-29 16:33:36 +02001428 goto err_remove_files;
Guenter Roeck06923f82011-02-19 08:27:47 -08001429 err = sysfs_create_group(&client->dev.kobj,
1430 &lm85_group_temp_off);
1431 if (err)
Jean Delvarebc4d45f2011-04-29 16:33:36 +02001432 goto err_remove_files;
Guenter Roeck06923f82011-02-19 08:27:47 -08001433 }
1434
Guenter Roeck09770b22012-01-14 20:47:36 -08001435 /*
1436 * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
1437 * as a sixth digital VID input rather than an analog input.
1438 */
Guenter Roeckde248802011-02-25 08:19:42 -08001439 if (data->type == adt7463 || data->type == adt7468) {
1440 u8 vid = lm85_read_value(client, LM85_REG_VID);
1441 if (vid & 0x80)
1442 data->has_vid5 = true;
1443 }
1444
Guenter Roeck09770b22012-01-14 20:47:36 -08001445 if (!data->has_vid5) {
1446 err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4);
1447 if (err)
Jean Delvaref9080372008-10-17 17:51:14 +02001448 goto err_remove_files;
Guenter Roeck09770b22012-01-14 20:47:36 -08001449 }
Jean Delvare6b9aad22007-07-05 20:37:21 +02001450
1451 /* The EMC6D100 has 3 additional voltage inputs */
Guenter Roeck09770b22012-01-14 20:47:36 -08001452 if (data->type == emc6d100) {
1453 err = sysfs_create_group(&client->dev.kobj, &lm85_group_in567);
1454 if (err)
Jean Delvaref9080372008-10-17 17:51:14 +02001455 goto err_remove_files;
Guenter Roeck09770b22012-01-14 20:47:36 -08001456 }
Mark M. Hoffman0501a3812006-09-24 21:14:35 +02001457
Jean Delvaree89e22b2008-06-25 08:47:35 -04001458 data->hwmon_dev = hwmon_device_register(&client->dev);
Tony Jones1beeffe2007-08-20 13:46:20 -07001459 if (IS_ERR(data->hwmon_dev)) {
1460 err = PTR_ERR(data->hwmon_dev);
Jean Delvaref9080372008-10-17 17:51:14 +02001461 goto err_remove_files;
Jean Delvare9c516ef2005-11-26 20:07:54 +01001462 }
1463
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464 return 0;
1465
1466 /* Error out and cleanup code */
Jean Delvaref9080372008-10-17 17:51:14 +02001467 err_remove_files:
Guenter Roeckbc6db2b2011-02-25 08:26:47 -08001468 lm85_remove_files(client, data);
Jean Delvaref9080372008-10-17 17:51:14 +02001469 err_kfree:
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 kfree(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471 return err;
1472}
1473
Jean Delvare67712d02008-10-17 17:51:14 +02001474static int lm85_remove(struct i2c_client *client)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475{
Mark M. Hoffman943b0832005-07-15 21:39:18 -04001476 struct lm85_data *data = i2c_get_clientdata(client);
Tony Jones1beeffe2007-08-20 13:46:20 -07001477 hwmon_device_unregister(data->hwmon_dev);
Guenter Roeckbc6db2b2011-02-25 08:26:47 -08001478 lm85_remove_files(client, data);
Mark M. Hoffman943b0832005-07-15 21:39:18 -04001479 kfree(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 return 0;
1481}
1482
1483
Ben Dooksd8d20612005-10-26 21:05:46 +02001484static int lm85_read_value(struct i2c_client *client, u8 reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485{
1486 int res;
1487
1488 /* What size location is it? */
Jean Delvare1f448092008-04-29 14:03:37 +02001489 switch (reg) {
1490 case LM85_REG_FAN(0): /* Read WORD data */
1491 case LM85_REG_FAN(1):
1492 case LM85_REG_FAN(2):
1493 case LM85_REG_FAN(3):
1494 case LM85_REG_FAN_MIN(0):
1495 case LM85_REG_FAN_MIN(1):
1496 case LM85_REG_FAN_MIN(2):
1497 case LM85_REG_FAN_MIN(3):
1498 case LM85_REG_ALARM1: /* Read both bytes at once */
1499 res = i2c_smbus_read_byte_data(client, reg) & 0xff;
1500 res |= i2c_smbus_read_byte_data(client, reg + 1) << 8;
1501 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 default: /* Read BYTE data */
1503 res = i2c_smbus_read_byte_data(client, reg);
Jean Delvare1f448092008-04-29 14:03:37 +02001504 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505 }
1506
Jean Delvare1f448092008-04-29 14:03:37 +02001507 return res;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508}
1509
Jean Delvaree89e22b2008-06-25 08:47:35 -04001510static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511{
Jean Delvare1f448092008-04-29 14:03:37 +02001512 switch (reg) {
1513 case LM85_REG_FAN(0): /* Write WORD data */
1514 case LM85_REG_FAN(1):
1515 case LM85_REG_FAN(2):
1516 case LM85_REG_FAN(3):
1517 case LM85_REG_FAN_MIN(0):
1518 case LM85_REG_FAN_MIN(1):
1519 case LM85_REG_FAN_MIN(2):
1520 case LM85_REG_FAN_MIN(3):
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521 /* NOTE: ALARM is read only, so not included here */
Jean Delvaree89e22b2008-06-25 08:47:35 -04001522 i2c_smbus_write_byte_data(client, reg, value & 0xff);
1523 i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
Jean Delvare1f448092008-04-29 14:03:37 +02001524 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525 default: /* Write BYTE data */
Jean Delvaree89e22b2008-06-25 08:47:35 -04001526 i2c_smbus_write_byte_data(client, reg, value);
Jean Delvare1f448092008-04-29 14:03:37 +02001527 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529}
1530
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531static struct lm85_data *lm85_update_device(struct device *dev)
1532{
1533 struct i2c_client *client = to_i2c_client(dev);
1534 struct lm85_data *data = i2c_get_clientdata(client);
1535 int i;
1536
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001537 mutex_lock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538
Jean Delvare1f448092008-04-29 14:03:37 +02001539 if (!data->valid ||
1540 time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001541 /* Things that change quickly */
1542 dev_dbg(&client->dev, "Reading sensor values\n");
Jean Delvare1f448092008-04-29 14:03:37 +02001543
Guenter Roeck09770b22012-01-14 20:47:36 -08001544 /*
1545 * Have to read extended bits first to "freeze" the
Linus Torvalds1da177e2005-04-16 15:20:36 -07001546 * more significant bits that are read later.
Jean Delvare5a4d3ef2007-07-05 20:38:32 +02001547 * There are 2 additional resolution bits per channel and we
1548 * have room for 4, so we shift them to the left.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001549 */
Darrick J. Wong79b92f22008-11-12 13:26:59 -08001550 if (data->type == adm1027 || data->type == adt7463 ||
1551 data->type == adt7468) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552 int ext1 = lm85_read_value(client,
1553 ADM1027_REG_EXTEND_ADC1);
1554 int ext2 = lm85_read_value(client,
1555 ADM1027_REG_EXTEND_ADC2);
1556 int val = (ext1 << 8) + ext2;
1557
Jean Delvare1f448092008-04-29 14:03:37 +02001558 for (i = 0; i <= 4; i++)
1559 data->in_ext[i] =
1560 ((val >> (i * 2)) & 0x03) << 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561
Jean Delvare1f448092008-04-29 14:03:37 +02001562 for (i = 0; i <= 2; i++)
1563 data->temp_ext[i] =
1564 (val >> ((i + 4) * 2)) & 0x0c;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001565 }
1566
Jean Delvare9c516ef2005-11-26 20:07:54 +01001567 data->vid = lm85_read_value(client, LM85_REG_VID);
1568
1569 for (i = 0; i <= 3; ++i) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570 data->in[i] =
1571 lm85_read_value(client, LM85_REG_IN(i));
Jean Delvaree89e22b2008-06-25 08:47:35 -04001572 data->fan[i] =
1573 lm85_read_value(client, LM85_REG_FAN(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574 }
1575
Guenter Roeckde248802011-02-25 08:19:42 -08001576 if (!data->has_vid5)
1577 data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
Jean Delvare9c516ef2005-11-26 20:07:54 +01001578
Darrick J. Wong79b92f22008-11-12 13:26:59 -08001579 if (data->type == adt7468)
1580 data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
1581
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582 for (i = 0; i <= 2; ++i) {
1583 data->temp[i] =
1584 lm85_read_value(client, LM85_REG_TEMP(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585 data->pwm[i] =
1586 lm85_read_value(client, LM85_REG_PWM(i));
Darrick J. Wong79b92f22008-11-12 13:26:59 -08001587
1588 if (IS_ADT7468_OFF64(data))
1589 data->temp[i] -= 64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590 }
1591
1592 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1593
Jean Delvaredd1ac532008-05-01 08:47:33 +02001594 if (data->type == emc6d100) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595 /* Three more voltage sensors */
1596 for (i = 5; i <= 7; ++i) {
Jean Delvare1f448092008-04-29 14:03:37 +02001597 data->in[i] = lm85_read_value(client,
1598 EMC6D100_REG_IN(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599 }
1600 /* More alarm bits */
Jean Delvare1f448092008-04-29 14:03:37 +02001601 data->alarms |= lm85_read_value(client,
1602 EMC6D100_REG_ALARM3) << 16;
Guenter Roeck06923f82011-02-19 08:27:47 -08001603 } else if (data->type == emc6d102 || data->type == emc6d103 ||
1604 data->type == emc6d103s) {
Guenter Roeck09770b22012-01-14 20:47:36 -08001605 /*
1606 * Have to read LSB bits after the MSB ones because
1607 * the reading of the MSB bits has frozen the
1608 * LSBs (backward from the ADM1027).
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 */
1610 int ext1 = lm85_read_value(client,
1611 EMC6D102_REG_EXTEND_ADC1);
1612 int ext2 = lm85_read_value(client,
1613 EMC6D102_REG_EXTEND_ADC2);
1614 int ext3 = lm85_read_value(client,
1615 EMC6D102_REG_EXTEND_ADC3);
1616 int ext4 = lm85_read_value(client,
1617 EMC6D102_REG_EXTEND_ADC4);
1618 data->in_ext[0] = ext3 & 0x0f;
1619 data->in_ext[1] = ext4 & 0x0f;
Jean Delvaree89e22b2008-06-25 08:47:35 -04001620 data->in_ext[2] = ext4 >> 4;
1621 data->in_ext[3] = ext3 >> 4;
1622 data->in_ext[4] = ext2 >> 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623
1624 data->temp_ext[0] = ext1 & 0x0f;
1625 data->temp_ext[1] = ext2 & 0x0f;
Jean Delvaree89e22b2008-06-25 08:47:35 -04001626 data->temp_ext[2] = ext1 >> 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627 }
1628
Jean Delvare1f448092008-04-29 14:03:37 +02001629 data->last_reading = jiffies;
1630 } /* last_reading */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001631
Jean Delvare1f448092008-04-29 14:03:37 +02001632 if (!data->valid ||
1633 time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634 /* Things that don't change often */
1635 dev_dbg(&client->dev, "Reading config values\n");
1636
Jean Delvare9c516ef2005-11-26 20:07:54 +01001637 for (i = 0; i <= 3; ++i) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638 data->in_min[i] =
1639 lm85_read_value(client, LM85_REG_IN_MIN(i));
1640 data->in_max[i] =
1641 lm85_read_value(client, LM85_REG_IN_MAX(i));
Jean Delvaree89e22b2008-06-25 08:47:35 -04001642 data->fan_min[i] =
1643 lm85_read_value(client, LM85_REG_FAN_MIN(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644 }
1645
Guenter Roeckde248802011-02-25 08:19:42 -08001646 if (!data->has_vid5) {
Jean Delvare9c516ef2005-11-26 20:07:54 +01001647 data->in_min[4] = lm85_read_value(client,
1648 LM85_REG_IN_MIN(4));
1649 data->in_max[4] = lm85_read_value(client,
1650 LM85_REG_IN_MAX(4));
1651 }
1652
Jean Delvare1f448092008-04-29 14:03:37 +02001653 if (data->type == emc6d100) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654 for (i = 5; i <= 7; ++i) {
Jean Delvare1f448092008-04-29 14:03:37 +02001655 data->in_min[i] = lm85_read_value(client,
1656 EMC6D100_REG_IN_MIN(i));
1657 data->in_max[i] = lm85_read_value(client,
1658 EMC6D100_REG_IN_MAX(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659 }
1660 }
1661
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662 for (i = 0; i <= 2; ++i) {
Jean Delvaree89e22b2008-06-25 08:47:35 -04001663 int val;
1664
Linus Torvalds1da177e2005-04-16 15:20:36 -07001665 data->temp_min[i] =
1666 lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1667 data->temp_max[i] =
1668 lm85_read_value(client, LM85_REG_TEMP_MAX(i));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669
Linus Torvalds1da177e2005-04-16 15:20:36 -07001670 data->autofan[i].config =
1671 lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1672 val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
Jean Delvare34e7dc62008-10-17 17:51:13 +02001673 data->pwm_freq[i] = val & 0x07;
Jean Delvaree89e22b2008-06-25 08:47:35 -04001674 data->zone[i].range = val >> 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675 data->autofan[i].min_pwm =
1676 lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1677 data->zone[i].limit =
1678 lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1679 data->zone[i].critical =
1680 lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
Darrick J. Wong79b92f22008-11-12 13:26:59 -08001681
1682 if (IS_ADT7468_OFF64(data)) {
1683 data->temp_min[i] -= 64;
1684 data->temp_max[i] -= 64;
1685 data->zone[i].limit -= 64;
1686 data->zone[i].critical -= 64;
1687 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688 }
1689
Guenter Roeck06923f82011-02-19 08:27:47 -08001690 if (data->type != emc6d103s) {
1691 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1692 data->autofan[0].min_off = (i & 0x20) != 0;
1693 data->autofan[1].min_off = (i & 0x40) != 0;
1694 data->autofan[2].min_off = (i & 0x80) != 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695
Guenter Roeck06923f82011-02-19 08:27:47 -08001696 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1697 data->zone[0].hyst = i >> 4;
1698 data->zone[1].hyst = i & 0x0f;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699
Guenter Roeck06923f82011-02-19 08:27:47 -08001700 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1701 data->zone[2].hyst = i >> 4;
1702 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001703
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704 data->last_config = jiffies;
Jean Delvare1f448092008-04-29 14:03:37 +02001705 } /* last_config */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706
1707 data->valid = 1;
1708
Ingo Molnar9a61bf62006-01-18 23:19:26 +01001709 mutex_unlock(&data->update_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710
1711 return data;
1712}
1713
Axel Linf0967ee2012-01-20 15:38:18 +08001714module_i2c_driver(lm85_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716MODULE_LICENSE("GPL");
Jean Delvare1f448092008-04-29 14:03:37 +02001717MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
1718 "Margit Schubert-While <margitsw@t-online.de>, "
Jean Delvaree89e22b2008-06-25 08:47:35 -04001719 "Justin Thiessen <jthiessen@penguincomputing.com>");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001720MODULE_DESCRIPTION("LM85-B, LM85-C driver");