Commit | Line | Data |
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1da177e4 | 1 | /* |
09770b26 GR |
2 | * 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 | */ | |
1da177e4 | 26 | |
1da177e4 LT |
27 | #include <linux/module.h> |
28 | #include <linux/init.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/jiffies.h> | |
31 | #include <linux/i2c.h> | |
943b0830 | 32 | #include <linux/hwmon.h> |
303760b4 | 33 | #include <linux/hwmon-vid.h> |
b353a487 | 34 | #include <linux/hwmon-sysfs.h> |
943b0830 | 35 | #include <linux/err.h> |
9a61bf63 | 36 | #include <linux/mutex.h> |
1da177e4 LT |
37 | |
38 | /* Addresses to scan */ | |
25e9c86d | 39 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 | 40 | |
e5e9f44c JD |
41 | enum chips { |
42 | any_chip, lm85b, lm85c, | |
43 | adm1027, adt7463, adt7468, | |
06923f84 | 44 | emc6d100, emc6d102, emc6d103, emc6d103s |
e5e9f44c | 45 | }; |
1da177e4 LT |
46 | |
47 | /* The LM85 registers */ | |
48 | ||
09770b26 GR |
49 | #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) | |
1da177e4 | 52 | |
09770b26 GR |
53 | #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) | |
1da177e4 LT |
56 | |
57 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
09770b26 GR |
58 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
59 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 | 60 | |
09770b26 | 61 | #define LM85_REG_PWM(nr) (0x30 + (nr)) |
1da177e4 | 62 | |
09770b26 GR |
63 | #define LM85_REG_COMPANY 0x3e |
64 | #define LM85_REG_VERSTEP 0x3f | |
79b92f2b | 65 | |
09770b26 GR |
66 | #define ADT7468_REG_CFG5 0x7c |
67 | #define ADT7468_OFF64 (1 << 0) | |
68 | #define ADT7468_HFPWM (1 << 1) | |
69 | #define IS_ADT7468_OFF64(data) \ | |
79b92f2b | 70 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) |
09770b26 | 71 | #define IS_ADT7468_HFPWM(data) \ |
f6c61cff | 72 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM)) |
79b92f2b | 73 | |
1da177e4 | 74 | /* These are the recognized values for the above regs */ |
09770b26 GR |
75 | #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 */ | |
96 | ||
97 | #define LM85_REG_CONFIG 0x40 | |
98 | ||
99 | #define LM85_REG_ALARM1 0x41 | |
100 | #define LM85_REG_ALARM2 0x42 | |
101 | ||
102 | #define LM85_REG_VID 0x43 | |
1da177e4 LT |
103 | |
104 | /* Automated FAN control */ | |
09770b26 GR |
105 | #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 | |
113 | ||
114 | #define ADM1027_REG_EXTEND_ADC1 0x76 | |
115 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
116 | |
117 | #define EMC6D100_REG_ALARM3 0x7d | |
118 | /* IN5, IN6 and IN7 */ | |
09770b26 GR |
119 | #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 | |
126 | ||
127 | ||
128 | /* | |
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. | |
1da177e4 LT |
132 | */ |
133 | ||
25985edc | 134 | /* IN are scaled according to built-in resistors */ |
e89e22b2 | 135 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
136 | 2500, 2250, 3300, 5000, 12000, |
137 | 3300, 1500, 1800 /*EMC6D100*/ | |
138 | }; | |
139 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 140 | |
1f44809a | 141 | #define INS_TO_REG(n, val) \ |
2a844c14 | 142 | clamp_val(SCALE(val, lm85_scaling[n], 192), 0, 255) |
1da177e4 | 143 | |
1f44809a | 144 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 145 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 146 | |
1f44809a | 147 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
148 | |
149 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
150 | static inline u16 FAN_TO_REG(unsigned long val) |
151 | { | |
152 | if (!val) | |
153 | return 0xffff; | |
2a844c14 | 154 | return clamp_val(5400000 / val, 1, 0xfffe); |
63f281a6 | 155 | } |
1f44809a JD |
156 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
157 | 5400000 / (val)) | |
1da177e4 LT |
158 | |
159 | /* Temperature is reported in .001 degC increments */ | |
160 | #define TEMP_TO_REG(val) \ | |
2a844c14 | 161 | clamp_val(SCALE(val, 1000, 1), -127, 127) |
1f44809a | 162 | #define TEMPEXT_FROM_REG(val, ext) \ |
5a4d3ef3 JD |
163 | SCALE(((val) << 4) + (ext), 16, 1000) |
164 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 165 | |
2a844c14 | 166 | #define PWM_TO_REG(val) clamp_val(val, 0, 255) |
1da177e4 LT |
167 | #define PWM_FROM_REG(val) (val) |
168 | ||
169 | ||
09770b26 GR |
170 | /* |
171 | * ZONEs have the following parameters: | |
1da177e4 LT |
172 | * 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 */ | |
e89e22b2 | 190 | static const int lm85_range_map[] = { |
1f44809a JD |
191 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
192 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
193 | }; | |
194 | ||
195 | static int RANGE_TO_REG(int range) | |
1da177e4 LT |
196 | { |
197 | int i; | |
198 | ||
d38b1497 | 199 | /* Find the closest match */ |
1b92adad JD |
200 | for (i = 0; i < 15; ++i) { |
201 | if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2) | |
202 | break; | |
1da177e4 | 203 | } |
d38b1497 | 204 | |
1b92adad | 205 | return i; |
1da177e4 | 206 | } |
1f44809a | 207 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 208 | |
1da177e4 | 209 | /* These are the PWM frequency encodings */ |
34e7dc6c | 210 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
211 | 10, 15, 23, 30, 38, 47, 61, 94 |
212 | }; | |
213 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
214 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a JD |
215 | }; |
216 | ||
8a0795d9 | 217 | static int FREQ_TO_REG(const int *map, int freq) |
1da177e4 LT |
218 | { |
219 | int i; | |
220 | ||
86010c98 | 221 | /* Find the closest match */ |
1f44809a | 222 | for (i = 0; i < 7; ++i) |
8a0795d9 | 223 | if (freq <= (map[i] + map[i + 1]) / 2) |
1f44809a | 224 | break; |
e89e22b2 | 225 | return i; |
1da177e4 | 226 | } |
8a0795d9 JD |
227 | |
228 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
229 | { | |
230 | return map[reg & 0x07]; | |
231 | } | |
1da177e4 | 232 | |
09770b26 GR |
233 | /* |
234 | * Since we can't use strings, I'm abusing these numbers | |
1da177e4 LT |
235 | * 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 | ||
e89e22b2 JD |
246 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
247 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 248 | |
1f44809a | 249 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
250 | { |
251 | int i; | |
252 | ||
1f44809a JD |
253 | for (i = 0; i <= 7; ++i) |
254 | if (zone == lm85_zone_map[i]) | |
255 | break; | |
256 | if (i > 7) /* Not found. */ | |
1da177e4 | 257 | i = 3; /* Always 100% */ |
e89e22b2 | 258 | return i << 5; |
1da177e4 LT |
259 | } |
260 | ||
2a844c14 | 261 | #define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15) |
1f44809a | 262 | #define HYST_FROM_REG(val) ((val) * 1000) |
1da177e4 | 263 | |
09770b26 GR |
264 | /* |
265 | * Chip sampling rates | |
1da177e4 LT |
266 | * |
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 | ||
09770b26 GR |
281 | /* |
282 | * LM85 can automatically adjust fan speeds based on temperature | |
1da177e4 LT |
283 | * This structure encapsulates an entire Zone config. There are |
284 | * three zones (one for each temperature input) on the lm85 | |
285 | */ | |
286 | struct 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 */ | |
09770b26 GR |
291 | u8 max_desired; /* |
292 | * Actual "max" temperature specified. Preserved | |
1da177e4 LT |
293 | * to prevent "drift" as other autofan control |
294 | * values change. | |
295 | */ | |
296 | }; | |
297 | ||
298 | struct lm85_autofan { | |
299 | u8 config; /* Register value */ | |
1da177e4 LT |
300 | u8 min_pwm; /* Minimum PWM value, encoded */ |
301 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
302 | }; | |
303 | ||
09770b26 GR |
304 | /* |
305 | * For each registered chip, we need to keep some data in memory. | |
306 | * The structure is dynamically allocated. | |
307 | */ | |
1da177e4 | 308 | struct lm85_data { |
1beeffe4 | 309 | struct device *hwmon_dev; |
8a0795d9 | 310 | const int *freq_map; |
1da177e4 LT |
311 | enum chips type; |
312 | ||
de248805 GR |
313 | bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ |
314 | ||
9a61bf63 | 315 | struct mutex update_lock; |
1da177e4 LT |
316 | 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 */ | |
1da177e4 LT |
326 | u16 fan[4]; /* Register value */ |
327 | u16 fan_min[4]; /* Register value */ | |
328 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 329 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
330 | u8 temp_ext[3]; /* Decoded values */ |
331 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
332 | u8 vid; /* Register value */ |
333 | u8 vrm; /* VRM version */ | |
1da177e4 | 334 | u32 alarms; /* Register encoding, combined */ |
79b92f2b | 335 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
1da177e4 LT |
336 | struct lm85_autofan autofan[3]; |
337 | struct lm85_zone zone[3]; | |
338 | }; | |
339 | ||
310ec792 | 340 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info); |
67712d01 JD |
341 | static int lm85_probe(struct i2c_client *client, |
342 | const struct i2c_device_id *id); | |
343 | static int lm85_remove(struct i2c_client *client); | |
1da177e4 | 344 | |
f6c27fc1 | 345 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
e89e22b2 | 346 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value); |
1da177e4 | 347 | static struct lm85_data *lm85_update_device(struct device *dev); |
1da177e4 LT |
348 | |
349 | ||
67712d01 JD |
350 | static const struct i2c_device_id lm85_id[] = { |
351 | { "adm1027", adm1027 }, | |
352 | { "adt7463", adt7463 }, | |
c15ade65 | 353 | { "adt7468", adt7468 }, |
67712d01 JD |
354 | { "lm85", any_chip }, |
355 | { "lm85b", lm85b }, | |
356 | { "lm85c", lm85c }, | |
357 | { "emc6d100", emc6d100 }, | |
358 | { "emc6d101", emc6d100 }, | |
359 | { "emc6d102", emc6d102 }, | |
f065a93e | 360 | { "emc6d103", emc6d103 }, |
06923f84 | 361 | { "emc6d103s", emc6d103s }, |
67712d01 JD |
362 | { } |
363 | }; | |
364 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
365 | ||
1da177e4 | 366 | static struct i2c_driver lm85_driver = { |
67712d01 | 367 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 368 | .driver = { |
cdaf7934 LR |
369 | .name = "lm85", |
370 | }, | |
67712d01 JD |
371 | .probe = lm85_probe, |
372 | .remove = lm85_remove, | |
373 | .id_table = lm85_id, | |
374 | .detect = lm85_detect, | |
c3813d6a | 375 | .address_list = normal_i2c, |
1da177e4 LT |
376 | }; |
377 | ||
378 | ||
379 | /* 4 Fans */ | |
b353a487 JD |
380 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
381 | char *buf) | |
1da177e4 | 382 | { |
b353a487 | 383 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 384 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 385 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 386 | } |
b353a487 JD |
387 | |
388 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
389 | char *buf) | |
1da177e4 | 390 | { |
b353a487 | 391 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 392 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 393 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 394 | } |
b353a487 JD |
395 | |
396 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
397 | const char *buf, size_t count) | |
1da177e4 | 398 | { |
b353a487 | 399 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
400 | struct i2c_client *client = to_i2c_client(dev); |
401 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
402 | unsigned long val; |
403 | int err; | |
404 | ||
405 | err = kstrtoul(buf, 10, &val); | |
406 | if (err) | |
407 | return err; | |
1da177e4 | 408 | |
9a61bf63 | 409 | mutex_lock(&data->update_lock); |
1da177e4 LT |
410 | data->fan_min[nr] = FAN_TO_REG(val); |
411 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 412 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
413 | return count; |
414 | } | |
415 | ||
416 | #define show_fan_offset(offset) \ | |
b353a487 JD |
417 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
418 | show_fan, NULL, offset - 1); \ | |
419 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
420 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
421 | |
422 | show_fan_offset(1); | |
423 | show_fan_offset(2); | |
424 | show_fan_offset(3); | |
425 | show_fan_offset(4); | |
426 | ||
427 | /* vid, vrm, alarms */ | |
428 | ||
1f44809a JD |
429 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
430 | char *buf) | |
1da177e4 LT |
431 | { |
432 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
433 | int vid; |
434 | ||
de248805 | 435 | if (data->has_vid5) { |
9c516ef4 JD |
436 | /* 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); | |
1da177e4 LT |
444 | } |
445 | ||
446 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
447 | ||
1f44809a JD |
448 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
449 | char *buf) | |
1da177e4 | 450 | { |
90d6619a | 451 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
452 | return sprintf(buf, "%ld\n", (long) data->vrm); |
453 | } | |
454 | ||
1f44809a JD |
455 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
456 | const char *buf, size_t count) | |
1da177e4 | 457 | { |
8f74efe8 | 458 | struct lm85_data *data = dev_get_drvdata(dev); |
09770b26 GR |
459 | unsigned long val; |
460 | int err; | |
461 | ||
462 | err = kstrtoul(buf, 10, &val); | |
463 | if (err) | |
464 | return err; | |
465 | ||
466 | data->vrm = val; | |
1da177e4 LT |
467 | return count; |
468 | } | |
469 | ||
470 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
471 | ||
1f44809a JD |
472 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
473 | *attr, char *buf) | |
1da177e4 LT |
474 | { |
475 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 476 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
477 | } |
478 | ||
479 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
480 | ||
bf76e9d3 JD |
481 | static 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 | ||
489 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
490 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
491 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
492 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
493 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
494 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
495 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
496 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
497 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
498 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
499 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
500 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
501 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
502 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
503 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
504 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
505 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
506 | ||
1da177e4 LT |
507 | /* pwm */ |
508 | ||
b353a487 JD |
509 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
510 | char *buf) | |
1da177e4 | 511 | { |
b353a487 | 512 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 513 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 514 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 515 | } |
b353a487 JD |
516 | |
517 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
518 | const char *buf, size_t count) | |
1da177e4 | 519 | { |
b353a487 | 520 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
521 | struct i2c_client *client = to_i2c_client(dev); |
522 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
523 | unsigned long val; |
524 | int err; | |
525 | ||
526 | err = kstrtoul(buf, 10, &val); | |
527 | if (err) | |
528 | return err; | |
1da177e4 | 529 | |
9a61bf63 | 530 | mutex_lock(&data->update_lock); |
1da177e4 LT |
531 | data->pwm[nr] = PWM_TO_REG(val); |
532 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 533 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
534 | return count; |
535 | } | |
b353a487 JD |
536 | |
537 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
538 | *attr, char *buf) | |
1da177e4 | 539 | { |
b353a487 | 540 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 541 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 542 | int pwm_zone, enable; |
1da177e4 LT |
543 | |
544 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
545 | 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); | |
1da177e4 LT |
557 | } |
558 | ||
455f791e JD |
559 | static 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); | |
455f791e | 565 | u8 config; |
09770b26 GR |
566 | unsigned long val; |
567 | int err; | |
568 | ||
569 | err = kstrtoul(buf, 10, &val); | |
570 | if (err) | |
571 | return err; | |
455f791e JD |
572 | |
573 | switch (val) { | |
574 | case 0: | |
575 | config = 3; | |
576 | break; | |
577 | case 1: | |
578 | config = 7; | |
579 | break; | |
580 | case 2: | |
09770b26 GR |
581 | /* |
582 | * Here we have to choose arbitrarily one of the 5 possible | |
583 | * configurations; I go for the safest | |
584 | */ | |
455f791e JD |
585 | 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 | ||
34e7dc6c JD |
602 | static 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); | |
f6c61cff JD |
607 | 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); | |
34e7dc6c JD |
615 | } |
616 | ||
617 | static 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); | |
09770b26 GR |
623 | unsigned long val; |
624 | int err; | |
625 | ||
626 | err = kstrtoul(buf, 10, &val); | |
627 | if (err) | |
628 | return err; | |
34e7dc6c JD |
629 | |
630 | mutex_lock(&data->update_lock); | |
09770b26 GR |
631 | /* |
632 | * The ADT7468 has a special high-frequency PWM output mode, | |
f6c61cff | 633 | * where all PWM outputs are driven by a 22.5 kHz clock. |
09770b26 GR |
634 | * This might confuse the user, but there's not much we can do. |
635 | */ | |
f6c61cff JD |
636 | 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 | } | |
34e7dc6c JD |
649 | mutex_unlock(&data->update_lock); |
650 | return count; | |
651 | } | |
652 | ||
1da177e4 | 653 | #define show_pwm_reg(offset) \ |
b353a487 JD |
654 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
655 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 656 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
657 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
658 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
659 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
660 | |
661 | show_pwm_reg(1); | |
662 | show_pwm_reg(2); | |
663 | show_pwm_reg(3); | |
664 | ||
665 | /* Voltages */ | |
666 | ||
b353a487 JD |
667 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
668 | char *buf) | |
1da177e4 | 669 | { |
b353a487 | 670 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 671 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
672 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
673 | data->in_ext[nr])); | |
1da177e4 | 674 | } |
b353a487 | 675 | |
1f44809a | 676 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 677 | char *buf) |
1da177e4 | 678 | { |
b353a487 | 679 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 680 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 681 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 682 | } |
b353a487 JD |
683 | |
684 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
685 | const char *buf, size_t count) | |
1da177e4 | 686 | { |
b353a487 | 687 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
688 | struct i2c_client *client = to_i2c_client(dev); |
689 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
690 | long val; |
691 | int err; | |
692 | ||
693 | err = kstrtol(buf, 10, &val); | |
694 | if (err) | |
695 | return err; | |
1da177e4 | 696 | |
9a61bf63 | 697 | mutex_lock(&data->update_lock); |
1da177e4 LT |
698 | data->in_min[nr] = INS_TO_REG(nr, val); |
699 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 700 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
701 | return count; |
702 | } | |
b353a487 JD |
703 | |
704 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
705 | char *buf) | |
1da177e4 | 706 | { |
b353a487 | 707 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 708 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 709 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 710 | } |
b353a487 JD |
711 | |
712 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
713 | const char *buf, size_t count) | |
1da177e4 | 714 | { |
b353a487 | 715 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
716 | struct i2c_client *client = to_i2c_client(dev); |
717 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
718 | long val; |
719 | int err; | |
720 | ||
721 | err = kstrtol(buf, 10, &val); | |
722 | if (err) | |
723 | return err; | |
1da177e4 | 724 | |
9a61bf63 | 725 | mutex_lock(&data->update_lock); |
1da177e4 LT |
726 | data->in_max[nr] = INS_TO_REG(nr, val); |
727 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 728 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
729 | return count; |
730 | } | |
b353a487 | 731 | |
1da177e4 | 732 | #define show_in_reg(offset) \ |
b353a487 JD |
733 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
734 | show_in, NULL, offset); \ | |
735 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
736 | show_in_min, set_in_min, offset); \ | |
737 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
738 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
739 | |
740 | show_in_reg(0); | |
741 | show_in_reg(1); | |
742 | show_in_reg(2); | |
743 | show_in_reg(3); | |
744 | show_in_reg(4); | |
6b9aad2d JD |
745 | show_in_reg(5); |
746 | show_in_reg(6); | |
747 | show_in_reg(7); | |
1da177e4 LT |
748 | |
749 | /* Temps */ | |
750 | ||
b353a487 JD |
751 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
752 | char *buf) | |
1da177e4 | 753 | { |
b353a487 | 754 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 755 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
756 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
757 | data->temp_ext[nr])); | |
1da177e4 | 758 | } |
b353a487 JD |
759 | |
760 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
761 | char *buf) | |
1da177e4 | 762 | { |
b353a487 | 763 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 764 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 765 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 766 | } |
b353a487 JD |
767 | |
768 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
769 | const char *buf, size_t count) | |
1da177e4 | 770 | { |
b353a487 | 771 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
772 | struct i2c_client *client = to_i2c_client(dev); |
773 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
774 | long val; |
775 | int err; | |
776 | ||
777 | err = kstrtol(buf, 10, &val); | |
778 | if (err) | |
779 | return err; | |
1da177e4 | 780 | |
79b92f2b DW |
781 | if (IS_ADT7468_OFF64(data)) |
782 | val += 64; | |
783 | ||
9a61bf63 | 784 | mutex_lock(&data->update_lock); |
1da177e4 LT |
785 | data->temp_min[nr] = TEMP_TO_REG(val); |
786 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 787 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
788 | return count; |
789 | } | |
b353a487 JD |
790 | |
791 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
792 | char *buf) | |
1da177e4 | 793 | { |
b353a487 | 794 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 795 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 796 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 797 | } |
b353a487 JD |
798 | |
799 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
800 | const char *buf, size_t count) | |
1da177e4 | 801 | { |
b353a487 | 802 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
803 | struct i2c_client *client = to_i2c_client(dev); |
804 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
805 | long val; |
806 | int err; | |
807 | ||
808 | err = kstrtol(buf, 10, &val); | |
809 | if (err) | |
810 | return err; | |
1da177e4 | 811 | |
79b92f2b DW |
812 | if (IS_ADT7468_OFF64(data)) |
813 | val += 64; | |
814 | ||
9a61bf63 | 815 | mutex_lock(&data->update_lock); |
1da177e4 LT |
816 | data->temp_max[nr] = TEMP_TO_REG(val); |
817 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 818 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
819 | return count; |
820 | } | |
b353a487 | 821 | |
1da177e4 | 822 | #define show_temp_reg(offset) \ |
b353a487 JD |
823 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
824 | show_temp, NULL, offset - 1); \ | |
825 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
826 | show_temp_min, set_temp_min, offset - 1); \ | |
827 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
828 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
829 | |
830 | show_temp_reg(1); | |
831 | show_temp_reg(2); | |
832 | show_temp_reg(3); | |
833 | ||
834 | ||
835 | /* Automatic PWM control */ | |
836 | ||
b353a487 JD |
837 | static ssize_t show_pwm_auto_channels(struct device *dev, |
838 | struct device_attribute *attr, char *buf) | |
1da177e4 | 839 | { |
b353a487 | 840 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 841 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 842 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 843 | } |
b353a487 JD |
844 | |
845 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
846 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 847 | { |
b353a487 | 848 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
849 | struct i2c_client *client = to_i2c_client(dev); |
850 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
851 | long val; |
852 | int err; | |
853 | ||
854 | err = kstrtol(buf, 10, &val); | |
855 | if (err) | |
856 | return err; | |
1da177e4 | 857 | |
9a61bf63 | 858 | mutex_lock(&data->update_lock); |
1da177e4 | 859 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 860 | | ZONE_TO_REG(val); |
1da177e4 LT |
861 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
862 | data->autofan[nr].config); | |
9a61bf63 | 863 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
864 | return count; |
865 | } | |
b353a487 JD |
866 | |
867 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
868 | struct device_attribute *attr, char *buf) | |
1da177e4 | 869 | { |
b353a487 | 870 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 871 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 872 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 873 | } |
b353a487 JD |
874 | |
875 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
876 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 877 | { |
b353a487 | 878 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
879 | struct i2c_client *client = to_i2c_client(dev); |
880 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
881 | unsigned long val; |
882 | int err; | |
883 | ||
884 | err = kstrtoul(buf, 10, &val); | |
885 | if (err) | |
886 | return err; | |
1da177e4 | 887 | |
9a61bf63 | 888 | mutex_lock(&data->update_lock); |
1da177e4 LT |
889 | 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); | |
9a61bf63 | 892 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
893 | return count; |
894 | } | |
b353a487 JD |
895 | |
896 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
897 | struct device_attribute *attr, char *buf) | |
1da177e4 | 898 | { |
b353a487 | 899 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 900 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 901 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 902 | } |
b353a487 JD |
903 | |
904 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
905 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 906 | { |
b353a487 | 907 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
908 | struct i2c_client *client = to_i2c_client(dev); |
909 | struct lm85_data *data = i2c_get_clientdata(client); | |
7133e56f | 910 | u8 tmp; |
09770b26 GR |
911 | long val; |
912 | int err; | |
913 | ||
914 | err = kstrtol(buf, 10, &val); | |
915 | if (err) | |
916 | return err; | |
1da177e4 | 917 | |
9a61bf63 | 918 | mutex_lock(&data->update_lock); |
1da177e4 | 919 | data->autofan[nr].min_off = val; |
7133e56f JD |
920 | 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); | |
9a61bf63 | 925 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
926 | return count; |
927 | } | |
b353a487 | 928 | |
1da177e4 | 929 | #define pwm_auto(offset) \ |
b353a487 JD |
930 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
931 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
932 | set_pwm_auto_channels, offset - 1); \ | |
933 | static 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); \ | |
936 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
937 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 938 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 939 | |
1da177e4 LT |
940 | pwm_auto(1); |
941 | pwm_auto(2); | |
942 | pwm_auto(3); | |
943 | ||
944 | /* Temperature settings for automatic PWM control */ | |
945 | ||
b353a487 JD |
946 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
947 | struct device_attribute *attr, char *buf) | |
1da177e4 | 948 | { |
b353a487 | 949 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 950 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 951 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
952 | HYST_FROM_REG(data->zone[nr].hyst)); |
953 | } | |
b353a487 JD |
954 | |
955 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
956 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 957 | { |
b353a487 | 958 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
959 | struct i2c_client *client = to_i2c_client(dev); |
960 | struct lm85_data *data = i2c_get_clientdata(client); | |
961 | int min; | |
09770b26 GR |
962 | long val; |
963 | int err; | |
964 | ||
965 | err = kstrtol(buf, 10, &val); | |
966 | if (err) | |
967 | return err; | |
1da177e4 | 968 | |
9a61bf63 | 969 | mutex_lock(&data->update_lock); |
1da177e4 | 970 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1da177e4 | 971 | data->zone[nr].hyst = HYST_TO_REG(min - val); |
1f44809a | 972 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
973 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
974 | (data->zone[0].hyst << 4) | |
1f44809a | 975 | | data->zone[1].hyst); |
1da177e4 LT |
976 | } else { |
977 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 978 | (data->zone[2].hyst << 4)); |
1da177e4 | 979 | } |
9a61bf63 | 980 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
981 | return count; |
982 | } | |
b353a487 JD |
983 | |
984 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
985 | struct device_attribute *attr, char *buf) | |
1da177e4 | 986 | { |
b353a487 | 987 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 988 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 989 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 990 | } |
b353a487 JD |
991 | |
992 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
993 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 994 | { |
b353a487 | 995 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
996 | struct i2c_client *client = to_i2c_client(dev); |
997 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
998 | long val; |
999 | int err; | |
1000 | ||
1001 | err = kstrtol(buf, 10, &val); | |
1002 | if (err) | |
1003 | return err; | |
1da177e4 | 1004 | |
9a61bf63 | 1005 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1006 | 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) | |
34e7dc6c | 1016 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 | 1017 | |
9a61bf63 | 1018 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1019 | return count; |
1020 | } | |
b353a487 JD |
1021 | |
1022 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
1023 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1024 | { |
b353a487 | 1025 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1026 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1027 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
1028 | RANGE_FROM_REG(data->zone[nr].range)); |
1029 | } | |
b353a487 JD |
1030 | |
1031 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
1032 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 1033 | { |
b353a487 | 1034 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
1035 | struct i2c_client *client = to_i2c_client(dev); |
1036 | struct lm85_data *data = i2c_get_clientdata(client); | |
1037 | int min; | |
09770b26 GR |
1038 | long val; |
1039 | int err; | |
1040 | ||
1041 | err = kstrtol(buf, 10, &val); | |
1042 | if (err) | |
1043 | return err; | |
1da177e4 | 1044 | |
9a61bf63 | 1045 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1046 | 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) | |
34e7dc6c | 1052 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 1053 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1054 | return count; |
1055 | } | |
b353a487 JD |
1056 | |
1057 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
1058 | struct device_attribute *attr, char *buf) | |
1da177e4 | 1059 | { |
b353a487 | 1060 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 1061 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 1062 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 1063 | } |
b353a487 JD |
1064 | |
1065 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 1066 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 1067 | { |
b353a487 | 1068 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
1069 | struct i2c_client *client = to_i2c_client(dev); |
1070 | struct lm85_data *data = i2c_get_clientdata(client); | |
09770b26 GR |
1071 | long val; |
1072 | int err; | |
1073 | ||
1074 | err = kstrtol(buf, 10, &val); | |
1075 | if (err) | |
1076 | return err; | |
1da177e4 | 1077 | |
9a61bf63 | 1078 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1079 | data->zone[nr].critical = TEMP_TO_REG(val); |
1080 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
1081 | data->zone[nr].critical); | |
9a61bf63 | 1082 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1083 | return count; |
1084 | } | |
b353a487 | 1085 | |
1da177e4 | 1086 | #define temp_auto(offset) \ |
b353a487 JD |
1087 | static 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); \ | |
1090 | static 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); \ | |
1093 | static 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); \ | |
1096 | static 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 | ||
1da177e4 LT |
1100 | temp_auto(1); |
1101 | temp_auto(2); | |
1102 | temp_auto(3); | |
1103 | ||
0501a381 | 1104 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
1105 | &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, | |
bf76e9d3 JD |
1113 | &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, | |
b353a487 JD |
1117 | |
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, | |
34e7dc6c JD |
1124 | &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, | |
b353a487 JD |
1127 | |
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, | |
bf76e9d3 JD |
1140 | &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, | |
b353a487 JD |
1144 | |
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, | |
bf76e9d3 JD |
1154 | &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, | |
b353a487 JD |
1159 | |
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, | |
b353a487 | 1166 | |
b353a487 JD |
1167 | &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 | ||
0501a381 MH |
1177 | &dev_attr_vrm.attr, |
1178 | &dev_attr_cpu0_vid.attr, | |
1179 | &dev_attr_alarms.attr, | |
0501a381 MH |
1180 | NULL |
1181 | }; | |
1182 | ||
1183 | static const struct attribute_group lm85_group = { | |
1184 | .attrs = lm85_attributes, | |
1185 | }; | |
1186 | ||
06923f84 GR |
1187 | static 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, | |
5f441e22 | 1191 | NULL |
06923f84 GR |
1192 | }; |
1193 | ||
1194 | static const struct attribute_group lm85_group_minctl = { | |
1195 | .attrs = lm85_attributes_minctl, | |
1196 | }; | |
1197 | ||
1198 | static 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, | |
5f441e22 | 1202 | NULL |
06923f84 GR |
1203 | }; |
1204 | ||
1205 | static const struct attribute_group lm85_group_temp_off = { | |
1206 | .attrs = lm85_attributes_temp_off, | |
1207 | }; | |
1208 | ||
6b9aad2d | 1209 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1210 | &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, | |
bf76e9d3 | 1213 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1214 | NULL |
1215 | }; | |
1216 | ||
6b9aad2d JD |
1217 | static const struct attribute_group lm85_group_in4 = { |
1218 | .attrs = lm85_attributes_in4, | |
1219 | }; | |
1220 | ||
1221 | static 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, | |
bf76e9d3 JD |
1231 | &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, | |
6b9aad2d JD |
1234 | NULL |
1235 | }; | |
1236 | ||
1237 | static const struct attribute_group lm85_group_in567 = { | |
1238 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1239 | }; |
1240 | ||
5f447594 JD |
1241 | static 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 | ||
5cfaf338 JD |
1259 | static 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 | ||
67712d01 | 1279 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1280 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 1281 | { |
67712d01 JD |
1282 | struct i2c_adapter *adapter = client->adapter; |
1283 | int address = client->addr; | |
e89e22b2 | 1284 | const char *type_name; |
d42a2eb5 | 1285 | int company, verstep; |
1da177e4 | 1286 | |
e89e22b2 | 1287 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1288 | /* We need to be able to do byte I/O */ |
67712d01 | 1289 | return -ENODEV; |
1f44809a | 1290 | } |
1da177e4 | 1291 | |
d42a2eb5 JD |
1292 | /* Determine the chip type */ |
1293 | company = lm85_read_value(client, LM85_REG_COMPANY); | |
1294 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1295 | ||
b55f3757 GR |
1296 | dev_dbg(&adapter->dev, |
1297 | "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
d42a2eb5 JD |
1298 | address, company, verstep); |
1299 | ||
1300 | /* 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; | |
69fc1feb | 1325 | } |
d42a2eb5 JD |
1326 | break; |
1327 | } | |
1328 | } 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; | |
1da177e4 | 1341 | } |
d42a2eb5 JD |
1342 | } 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; | |
f065a93e JB |
1352 | case LM85_VERSTEP_EMC6D103_A0: |
1353 | case LM85_VERSTEP_EMC6D103_A1: | |
1354 | type_name = "emc6d103"; | |
1355 | break; | |
f065a93e JB |
1356 | case LM85_VERSTEP_EMC6D103S: |
1357 | type_name = "emc6d103s"; | |
1358 | break; | |
d42a2eb5 JD |
1359 | } |
1360 | } else { | |
1361 | dev_dbg(&adapter->dev, | |
1362 | "Autodetection failed: unknown vendor\n"); | |
1363 | return -ENODEV; | |
1da177e4 LT |
1364 | } |
1365 | ||
67712d01 JD |
1366 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1367 | ||
1368 | return 0; | |
1369 | } | |
1da177e4 | 1370 | |
bc6db2b5 GR |
1371 | static void lm85_remove_files(struct i2c_client *client, struct lm85_data *data) |
1372 | { | |
1373 | sysfs_remove_group(&client->dev.kobj, &lm85_group); | |
06923f84 GR |
1374 | 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 | } | |
bc6db2b5 GR |
1378 | 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 | ||
67712d01 JD |
1384 | static int lm85_probe(struct i2c_client *client, |
1385 | const struct i2c_device_id *id) | |
1386 | { | |
1387 | struct lm85_data *data; | |
1388 | int err; | |
1389 | ||
747e5d62 | 1390 | data = devm_kzalloc(&client->dev, sizeof(struct lm85_data), GFP_KERNEL); |
67712d01 JD |
1391 | if (!data) |
1392 | return -ENOMEM; | |
1393 | ||
1394 | i2c_set_clientdata(client, data); | |
1395 | data->type = id->driver_data; | |
9a61bf63 | 1396 | mutex_init(&data->update_lock); |
1da177e4 | 1397 | |
67712d01 JD |
1398 | /* Fill in the chip specific driver values */ |
1399 | switch (data->type) { | |
1400 | case adm1027: | |
1401 | case adt7463: | |
fa7a5797 | 1402 | case adt7468: |
67712d01 JD |
1403 | case emc6d100: |
1404 | case emc6d102: | |
f065a93e | 1405 | case emc6d103: |
06923f84 | 1406 | case emc6d103s: |
67712d01 JD |
1407 | data->freq_map = adm1027_freq_map; |
1408 | break; | |
1409 | default: | |
1410 | data->freq_map = lm85_freq_map; | |
1411 | } | |
1da177e4 LT |
1412 | |
1413 | /* Set the VRM version */ | |
303760b4 | 1414 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1415 | |
1416 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1417 | lm85_init_client(client); |
1da177e4 LT |
1418 | |
1419 | /* Register sysfs hooks */ | |
e89e22b2 JD |
1420 | err = sysfs_create_group(&client->dev.kobj, &lm85_group); |
1421 | if (err) | |
747e5d62 | 1422 | return err; |
1da177e4 | 1423 | |
06923f84 GR |
1424 | /* 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) | |
bc4d45f1 | 1428 | goto err_remove_files; |
06923f84 GR |
1429 | err = sysfs_create_group(&client->dev.kobj, |
1430 | &lm85_group_temp_off); | |
1431 | if (err) | |
bc4d45f1 | 1432 | goto err_remove_files; |
06923f84 GR |
1433 | } |
1434 | ||
09770b26 GR |
1435 | /* |
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 | */ | |
de248805 GR |
1439 | 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 | ||
09770b26 GR |
1445 | if (!data->has_vid5) { |
1446 | err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4); | |
1447 | if (err) | |
f908037a | 1448 | goto err_remove_files; |
09770b26 | 1449 | } |
6b9aad2d JD |
1450 | |
1451 | /* The EMC6D100 has 3 additional voltage inputs */ | |
09770b26 GR |
1452 | if (data->type == emc6d100) { |
1453 | err = sysfs_create_group(&client->dev.kobj, &lm85_group_in567); | |
1454 | if (err) | |
f908037a | 1455 | goto err_remove_files; |
09770b26 | 1456 | } |
0501a381 | 1457 | |
e89e22b2 | 1458 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
1459 | if (IS_ERR(data->hwmon_dev)) { |
1460 | err = PTR_ERR(data->hwmon_dev); | |
f908037a | 1461 | goto err_remove_files; |
9c516ef4 JD |
1462 | } |
1463 | ||
1da177e4 LT |
1464 | return 0; |
1465 | ||
1466 | /* Error out and cleanup code */ | |
f908037a | 1467 | err_remove_files: |
bc6db2b5 | 1468 | lm85_remove_files(client, data); |
1da177e4 LT |
1469 | return err; |
1470 | } | |
1471 | ||
67712d01 | 1472 | static int lm85_remove(struct i2c_client *client) |
1da177e4 | 1473 | { |
943b0830 | 1474 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1475 | hwmon_device_unregister(data->hwmon_dev); |
bc6db2b5 | 1476 | lm85_remove_files(client, data); |
1da177e4 LT |
1477 | return 0; |
1478 | } | |
1479 | ||
1480 | ||
d8d20615 | 1481 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1482 | { |
1483 | int res; | |
1484 | ||
1485 | /* What size location is it? */ | |
1f44809a JD |
1486 | switch (reg) { |
1487 | case LM85_REG_FAN(0): /* Read WORD data */ | |
1488 | case LM85_REG_FAN(1): | |
1489 | case LM85_REG_FAN(2): | |
1490 | case LM85_REG_FAN(3): | |
1491 | case LM85_REG_FAN_MIN(0): | |
1492 | case LM85_REG_FAN_MIN(1): | |
1493 | case LM85_REG_FAN_MIN(2): | |
1494 | case LM85_REG_FAN_MIN(3): | |
1495 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
1496 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
1497 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
1498 | break; | |
1da177e4 LT |
1499 | default: /* Read BYTE data */ |
1500 | res = i2c_smbus_read_byte_data(client, reg); | |
1f44809a | 1501 | break; |
1da177e4 LT |
1502 | } |
1503 | ||
1f44809a | 1504 | return res; |
1da177e4 LT |
1505 | } |
1506 | ||
e89e22b2 | 1507 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 | 1508 | { |
1f44809a JD |
1509 | switch (reg) { |
1510 | case LM85_REG_FAN(0): /* Write WORD data */ | |
1511 | case LM85_REG_FAN(1): | |
1512 | case LM85_REG_FAN(2): | |
1513 | case LM85_REG_FAN(3): | |
1514 | case LM85_REG_FAN_MIN(0): | |
1515 | case LM85_REG_FAN_MIN(1): | |
1516 | case LM85_REG_FAN_MIN(2): | |
1517 | case LM85_REG_FAN_MIN(3): | |
1da177e4 | 1518 | /* NOTE: ALARM is read only, so not included here */ |
e89e22b2 JD |
1519 | i2c_smbus_write_byte_data(client, reg, value & 0xff); |
1520 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
1f44809a | 1521 | break; |
1da177e4 | 1522 | default: /* Write BYTE data */ |
e89e22b2 | 1523 | i2c_smbus_write_byte_data(client, reg, value); |
1f44809a | 1524 | break; |
1da177e4 | 1525 | } |
1da177e4 LT |
1526 | } |
1527 | ||
1da177e4 LT |
1528 | static struct lm85_data *lm85_update_device(struct device *dev) |
1529 | { | |
1530 | struct i2c_client *client = to_i2c_client(dev); | |
1531 | struct lm85_data *data = i2c_get_clientdata(client); | |
1532 | int i; | |
1533 | ||
9a61bf63 | 1534 | mutex_lock(&data->update_lock); |
1da177e4 | 1535 | |
1f44809a JD |
1536 | if (!data->valid || |
1537 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
1da177e4 LT |
1538 | /* Things that change quickly */ |
1539 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1f44809a | 1540 | |
09770b26 GR |
1541 | /* |
1542 | * Have to read extended bits first to "freeze" the | |
1da177e4 | 1543 | * more significant bits that are read later. |
5a4d3ef3 JD |
1544 | * There are 2 additional resolution bits per channel and we |
1545 | * have room for 4, so we shift them to the left. | |
1da177e4 | 1546 | */ |
79b92f2b DW |
1547 | if (data->type == adm1027 || data->type == adt7463 || |
1548 | data->type == adt7468) { | |
1da177e4 LT |
1549 | int ext1 = lm85_read_value(client, |
1550 | ADM1027_REG_EXTEND_ADC1); | |
1551 | int ext2 = lm85_read_value(client, | |
1552 | ADM1027_REG_EXTEND_ADC2); | |
1553 | int val = (ext1 << 8) + ext2; | |
1554 | ||
1f44809a JD |
1555 | for (i = 0; i <= 4; i++) |
1556 | data->in_ext[i] = | |
1557 | ((val >> (i * 2)) & 0x03) << 2; | |
1da177e4 | 1558 | |
1f44809a JD |
1559 | for (i = 0; i <= 2; i++) |
1560 | data->temp_ext[i] = | |
1561 | (val >> ((i + 4) * 2)) & 0x0c; | |
1da177e4 LT |
1562 | } |
1563 | ||
9c516ef4 JD |
1564 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1565 | ||
1566 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1567 | data->in[i] = |
1568 | lm85_read_value(client, LM85_REG_IN(i)); | |
e89e22b2 JD |
1569 | data->fan[i] = |
1570 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1da177e4 LT |
1571 | } |
1572 | ||
de248805 GR |
1573 | if (!data->has_vid5) |
1574 | data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); | |
9c516ef4 | 1575 | |
79b92f2b DW |
1576 | if (data->type == adt7468) |
1577 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); | |
1578 | ||
1da177e4 LT |
1579 | for (i = 0; i <= 2; ++i) { |
1580 | data->temp[i] = | |
1581 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1da177e4 LT |
1582 | data->pwm[i] = |
1583 | lm85_read_value(client, LM85_REG_PWM(i)); | |
79b92f2b DW |
1584 | |
1585 | if (IS_ADT7468_OFF64(data)) | |
1586 | data->temp[i] -= 64; | |
1da177e4 LT |
1587 | } |
1588 | ||
1589 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1590 | ||
dd1ac538 | 1591 | if (data->type == emc6d100) { |
1da177e4 LT |
1592 | /* Three more voltage sensors */ |
1593 | for (i = 5; i <= 7; ++i) { | |
1f44809a JD |
1594 | data->in[i] = lm85_read_value(client, |
1595 | EMC6D100_REG_IN(i)); | |
1da177e4 LT |
1596 | } |
1597 | /* More alarm bits */ | |
1f44809a JD |
1598 | data->alarms |= lm85_read_value(client, |
1599 | EMC6D100_REG_ALARM3) << 16; | |
06923f84 GR |
1600 | } else if (data->type == emc6d102 || data->type == emc6d103 || |
1601 | data->type == emc6d103s) { | |
09770b26 GR |
1602 | /* |
1603 | * Have to read LSB bits after the MSB ones because | |
1604 | * the reading of the MSB bits has frozen the | |
1605 | * LSBs (backward from the ADM1027). | |
1da177e4 LT |
1606 | */ |
1607 | int ext1 = lm85_read_value(client, | |
1608 | EMC6D102_REG_EXTEND_ADC1); | |
1609 | int ext2 = lm85_read_value(client, | |
1610 | EMC6D102_REG_EXTEND_ADC2); | |
1611 | int ext3 = lm85_read_value(client, | |
1612 | EMC6D102_REG_EXTEND_ADC3); | |
1613 | int ext4 = lm85_read_value(client, | |
1614 | EMC6D102_REG_EXTEND_ADC4); | |
1615 | data->in_ext[0] = ext3 & 0x0f; | |
1616 | data->in_ext[1] = ext4 & 0x0f; | |
e89e22b2 JD |
1617 | data->in_ext[2] = ext4 >> 4; |
1618 | data->in_ext[3] = ext3 >> 4; | |
1619 | data->in_ext[4] = ext2 >> 4; | |
1da177e4 LT |
1620 | |
1621 | data->temp_ext[0] = ext1 & 0x0f; | |
1622 | data->temp_ext[1] = ext2 & 0x0f; | |
e89e22b2 | 1623 | data->temp_ext[2] = ext1 >> 4; |
1da177e4 LT |
1624 | } |
1625 | ||
1f44809a JD |
1626 | data->last_reading = jiffies; |
1627 | } /* last_reading */ | |
1da177e4 | 1628 | |
1f44809a JD |
1629 | if (!data->valid || |
1630 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
1da177e4 LT |
1631 | /* Things that don't change often */ |
1632 | dev_dbg(&client->dev, "Reading config values\n"); | |
1633 | ||
9c516ef4 | 1634 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1635 | data->in_min[i] = |
1636 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1637 | data->in_max[i] = | |
1638 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
e89e22b2 JD |
1639 | data->fan_min[i] = |
1640 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1da177e4 LT |
1641 | } |
1642 | ||
de248805 | 1643 | if (!data->has_vid5) { |
9c516ef4 JD |
1644 | data->in_min[4] = lm85_read_value(client, |
1645 | LM85_REG_IN_MIN(4)); | |
1646 | data->in_max[4] = lm85_read_value(client, | |
1647 | LM85_REG_IN_MAX(4)); | |
1648 | } | |
1649 | ||
1f44809a | 1650 | if (data->type == emc6d100) { |
1da177e4 | 1651 | for (i = 5; i <= 7; ++i) { |
1f44809a JD |
1652 | data->in_min[i] = lm85_read_value(client, |
1653 | EMC6D100_REG_IN_MIN(i)); | |
1654 | data->in_max[i] = lm85_read_value(client, | |
1655 | EMC6D100_REG_IN_MAX(i)); | |
1da177e4 LT |
1656 | } |
1657 | } | |
1658 | ||
1da177e4 | 1659 | for (i = 0; i <= 2; ++i) { |
e89e22b2 JD |
1660 | int val; |
1661 | ||
1da177e4 LT |
1662 | data->temp_min[i] = |
1663 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1664 | data->temp_max[i] = | |
1665 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1da177e4 | 1666 | |
1da177e4 LT |
1667 | data->autofan[i].config = |
1668 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1669 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
34e7dc6c | 1670 | data->pwm_freq[i] = val & 0x07; |
e89e22b2 | 1671 | data->zone[i].range = val >> 4; |
1da177e4 LT |
1672 | data->autofan[i].min_pwm = |
1673 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1674 | data->zone[i].limit = | |
1675 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1676 | data->zone[i].critical = | |
1677 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
79b92f2b DW |
1678 | |
1679 | if (IS_ADT7468_OFF64(data)) { | |
1680 | data->temp_min[i] -= 64; | |
1681 | data->temp_max[i] -= 64; | |
1682 | data->zone[i].limit -= 64; | |
1683 | data->zone[i].critical -= 64; | |
1684 | } | |
1da177e4 LT |
1685 | } |
1686 | ||
06923f84 GR |
1687 | if (data->type != emc6d103s) { |
1688 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1689 | data->autofan[0].min_off = (i & 0x20) != 0; | |
1690 | data->autofan[1].min_off = (i & 0x40) != 0; | |
1691 | data->autofan[2].min_off = (i & 0x80) != 0; | |
1da177e4 | 1692 | |
06923f84 GR |
1693 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); |
1694 | data->zone[0].hyst = i >> 4; | |
1695 | data->zone[1].hyst = i & 0x0f; | |
1da177e4 | 1696 | |
06923f84 GR |
1697 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); |
1698 | data->zone[2].hyst = i >> 4; | |
1699 | } | |
1da177e4 | 1700 | |
1da177e4 | 1701 | data->last_config = jiffies; |
1f44809a | 1702 | } /* last_config */ |
1da177e4 LT |
1703 | |
1704 | data->valid = 1; | |
1705 | ||
9a61bf63 | 1706 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1707 | |
1708 | return data; | |
1709 | } | |
1710 | ||
f0967eea | 1711 | module_i2c_driver(lm85_driver); |
1da177e4 | 1712 | |
1da177e4 | 1713 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1714 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1715 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1716 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 | 1717 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |