Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | lm85.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
1f44809a | 4 | Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> |
1da177e4 LT |
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> | |
8a0795d9 | 8 | Copyright (C) 2007, 2008 Jean Delvare <khali@linux-fr.org> |
1da177e4 LT |
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 | */ | |
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 LT |
40 | |
41 | /* Insmod parameters */ | |
f4b50261 | 42 | I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102); |
1da177e4 LT |
43 | |
44 | /* The LM85 registers */ | |
45 | ||
46 | #define LM85_REG_IN(nr) (0x20 + (nr)) | |
47 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
48 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
49 | ||
50 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) | |
51 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
52 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
53 | ||
54 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
1f44809a JD |
55 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
56 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 LT |
57 | |
58 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
59 | ||
1da177e4 LT |
60 | #define LM85_REG_COMPANY 0x3e |
61 | #define LM85_REG_VERSTEP 0x3f | |
62 | /* These are the recognized values for the above regs */ | |
1da177e4 LT |
63 | #define LM85_COMPANY_NATIONAL 0x01 |
64 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
1f44809a | 65 | #define LM85_COMPANY_SMSC 0x5c |
1da177e4 LT |
66 | #define LM85_VERSTEP_VMASK 0xf0 |
67 | #define LM85_VERSTEP_GENERIC 0x60 | |
68 | #define LM85_VERSTEP_LM85C 0x60 | |
69 | #define LM85_VERSTEP_LM85B 0x62 | |
70 | #define LM85_VERSTEP_ADM1027 0x60 | |
71 | #define LM85_VERSTEP_ADT7463 0x62 | |
72 | #define LM85_VERSTEP_ADT7463C 0x6A | |
73 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
74 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
75 | #define LM85_VERSTEP_EMC6D102 0x65 | |
76 | ||
77 | #define LM85_REG_CONFIG 0x40 | |
78 | ||
79 | #define LM85_REG_ALARM1 0x41 | |
80 | #define LM85_REG_ALARM2 0x42 | |
81 | ||
82 | #define LM85_REG_VID 0x43 | |
83 | ||
84 | /* Automated FAN control */ | |
85 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
86 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
87 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
1da177e4 LT |
88 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) |
89 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
90 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
91 | #define LM85_REG_AFAN_HYST1 0x6d | |
92 | #define LM85_REG_AFAN_HYST2 0x6e | |
93 | ||
1da177e4 LT |
94 | #define ADM1027_REG_EXTEND_ADC1 0x76 |
95 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
96 | |
97 | #define EMC6D100_REG_ALARM3 0x7d | |
98 | /* IN5, IN6 and IN7 */ | |
1f44809a JD |
99 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
100 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
101 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
1da177e4 LT |
102 | #define EMC6D102_REG_EXTEND_ADC1 0x85 |
103 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
104 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
105 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
106 | ||
1da177e4 | 107 | |
1f44809a | 108 | /* Conversions. Rounding and limit checking is only done on the TO_REG |
1da177e4 LT |
109 | variants. Note that you should be a bit careful with which arguments |
110 | these macros are called: arguments may be evaluated more than once. | |
111 | */ | |
112 | ||
113 | /* IN are scaled acording to built-in resistors */ | |
e89e22b2 | 114 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
115 | 2500, 2250, 3300, 5000, 12000, |
116 | 3300, 1500, 1800 /*EMC6D100*/ | |
117 | }; | |
118 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 119 | |
1f44809a JD |
120 | #define INS_TO_REG(n, val) \ |
121 | SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255) | |
1da177e4 | 122 | |
1f44809a | 123 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 124 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 125 | |
1f44809a | 126 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
127 | |
128 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
129 | static inline u16 FAN_TO_REG(unsigned long val) |
130 | { | |
131 | if (!val) | |
132 | return 0xffff; | |
133 | return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); | |
134 | } | |
1f44809a JD |
135 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
136 | 5400000 / (val)) | |
1da177e4 LT |
137 | |
138 | /* Temperature is reported in .001 degC increments */ | |
139 | #define TEMP_TO_REG(val) \ | |
1f44809a JD |
140 | SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127) |
141 | #define TEMPEXT_FROM_REG(val, ext) \ | |
5a4d3ef3 JD |
142 | SCALE(((val) << 4) + (ext), 16, 1000) |
143 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 144 | |
1f44809a | 145 | #define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255) |
1da177e4 LT |
146 | #define PWM_FROM_REG(val) (val) |
147 | ||
148 | ||
149 | /* ZONEs have the following parameters: | |
150 | * Limit (low) temp, 1. degC | |
151 | * Hysteresis (below limit), 1. degC (0-15) | |
152 | * Range of speed control, .1 degC (2-80) | |
153 | * Critical (high) temp, 1. degC | |
154 | * | |
155 | * FAN PWMs have the following parameters: | |
156 | * Reference Zone, 1, 2, 3, etc. | |
157 | * Spinup time, .05 sec | |
158 | * PWM value at limit/low temp, 1 count | |
159 | * PWM Frequency, 1. Hz | |
160 | * PWM is Min or OFF below limit, flag | |
161 | * Invert PWM output, flag | |
162 | * | |
163 | * Some chips filter the temp, others the fan. | |
164 | * Filter constant (or disabled) .1 seconds | |
165 | */ | |
166 | ||
167 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 168 | static const int lm85_range_map[] = { |
1f44809a JD |
169 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
170 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
171 | }; | |
172 | ||
173 | static int RANGE_TO_REG(int range) | |
1da177e4 LT |
174 | { |
175 | int i; | |
176 | ||
d38b1497 | 177 | /* Find the closest match */ |
1b92adad JD |
178 | for (i = 0; i < 15; ++i) { |
179 | if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2) | |
180 | break; | |
1da177e4 | 181 | } |
d38b1497 | 182 | |
1b92adad | 183 | return i; |
1da177e4 | 184 | } |
1f44809a | 185 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 186 | |
1da177e4 | 187 | /* These are the PWM frequency encodings */ |
34e7dc6c | 188 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
189 | 10, 15, 23, 30, 38, 47, 61, 94 |
190 | }; | |
191 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
192 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a JD |
193 | }; |
194 | ||
8a0795d9 | 195 | static int FREQ_TO_REG(const int *map, int freq) |
1da177e4 LT |
196 | { |
197 | int i; | |
198 | ||
86010c98 | 199 | /* Find the closest match */ |
1f44809a | 200 | for (i = 0; i < 7; ++i) |
8a0795d9 | 201 | if (freq <= (map[i] + map[i + 1]) / 2) |
1f44809a | 202 | break; |
e89e22b2 | 203 | return i; |
1da177e4 | 204 | } |
8a0795d9 JD |
205 | |
206 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
207 | { | |
208 | return map[reg & 0x07]; | |
209 | } | |
1da177e4 LT |
210 | |
211 | /* Since we can't use strings, I'm abusing these numbers | |
212 | * to stand in for the following meanings: | |
213 | * 1 -- PWM responds to Zone 1 | |
214 | * 2 -- PWM responds to Zone 2 | |
215 | * 3 -- PWM responds to Zone 3 | |
216 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
217 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
218 | * 0 -- PWM is always at 0% (ie, off) | |
219 | * -1 -- PWM is always at 100% | |
220 | * -2 -- PWM responds to manual control | |
221 | */ | |
222 | ||
e89e22b2 JD |
223 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
224 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 225 | |
1f44809a | 226 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
227 | { |
228 | int i; | |
229 | ||
1f44809a JD |
230 | for (i = 0; i <= 7; ++i) |
231 | if (zone == lm85_zone_map[i]) | |
232 | break; | |
233 | if (i > 7) /* Not found. */ | |
1da177e4 | 234 | i = 3; /* Always 100% */ |
e89e22b2 | 235 | return i << 5; |
1da177e4 LT |
236 | } |
237 | ||
1f44809a JD |
238 | #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15) |
239 | #define HYST_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 240 | |
1da177e4 LT |
241 | /* Chip sampling rates |
242 | * | |
243 | * Some sensors are not updated more frequently than once per second | |
244 | * so it doesn't make sense to read them more often than that. | |
245 | * We cache the results and return the saved data if the driver | |
246 | * is called again before a second has elapsed. | |
247 | * | |
248 | * Also, there is significant configuration data for this chip | |
249 | * given the automatic PWM fan control that is possible. There | |
250 | * are about 47 bytes of config data to only 22 bytes of actual | |
251 | * readings. So, we keep the config data up to date in the cache | |
252 | * when it is written and only sample it once every 1 *minute* | |
253 | */ | |
254 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
255 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
256 | ||
1da177e4 LT |
257 | /* LM85 can automatically adjust fan speeds based on temperature |
258 | * This structure encapsulates an entire Zone config. There are | |
259 | * three zones (one for each temperature input) on the lm85 | |
260 | */ | |
261 | struct lm85_zone { | |
262 | s8 limit; /* Low temp limit */ | |
263 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
264 | u8 range; /* Temp range, encoded */ | |
265 | s8 critical; /* "All fans ON" temp limit */ | |
1f44809a | 266 | u8 off_desired; /* Actual "off" temperature specified. Preserved |
1da177e4 LT |
267 | * to prevent "drift" as other autofan control |
268 | * values change. | |
269 | */ | |
1f44809a | 270 | u8 max_desired; /* Actual "max" temperature specified. Preserved |
1da177e4 LT |
271 | * to prevent "drift" as other autofan control |
272 | * values change. | |
273 | */ | |
274 | }; | |
275 | ||
276 | struct lm85_autofan { | |
277 | u8 config; /* Register value */ | |
1da177e4 LT |
278 | u8 min_pwm; /* Minimum PWM value, encoded */ |
279 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
280 | }; | |
281 | ||
ed6bafbf JD |
282 | /* For each registered chip, we need to keep some data in memory. |
283 | The structure is dynamically allocated. */ | |
1da177e4 | 284 | struct lm85_data { |
1beeffe4 | 285 | struct device *hwmon_dev; |
8a0795d9 | 286 | const int *freq_map; |
1da177e4 LT |
287 | enum chips type; |
288 | ||
9a61bf63 | 289 | struct mutex update_lock; |
1da177e4 LT |
290 | int valid; /* !=0 if following fields are valid */ |
291 | unsigned long last_reading; /* In jiffies */ | |
292 | unsigned long last_config; /* In jiffies */ | |
293 | ||
294 | u8 in[8]; /* Register value */ | |
295 | u8 in_max[8]; /* Register value */ | |
296 | u8 in_min[8]; /* Register value */ | |
297 | s8 temp[3]; /* Register value */ | |
298 | s8 temp_min[3]; /* Register value */ | |
299 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
300 | u16 fan[4]; /* Register value */ |
301 | u16 fan_min[4]; /* Register value */ | |
302 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 303 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
304 | u8 temp_ext[3]; /* Decoded values */ |
305 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
306 | u8 vid; /* Register value */ |
307 | u8 vrm; /* VRM version */ | |
1da177e4 LT |
308 | u32 alarms; /* Register encoding, combined */ |
309 | struct lm85_autofan autofan[3]; | |
310 | struct lm85_zone zone[3]; | |
311 | }; | |
312 | ||
67712d01 JD |
313 | static int lm85_detect(struct i2c_client *client, int kind, |
314 | struct i2c_board_info *info); | |
315 | static int lm85_probe(struct i2c_client *client, | |
316 | const struct i2c_device_id *id); | |
317 | static int lm85_remove(struct i2c_client *client); | |
1da177e4 | 318 | |
f6c27fc1 | 319 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
e89e22b2 | 320 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value); |
1da177e4 | 321 | static struct lm85_data *lm85_update_device(struct device *dev); |
1da177e4 LT |
322 | |
323 | ||
67712d01 JD |
324 | static const struct i2c_device_id lm85_id[] = { |
325 | { "adm1027", adm1027 }, | |
326 | { "adt7463", adt7463 }, | |
327 | { "lm85", any_chip }, | |
328 | { "lm85b", lm85b }, | |
329 | { "lm85c", lm85c }, | |
330 | { "emc6d100", emc6d100 }, | |
331 | { "emc6d101", emc6d100 }, | |
332 | { "emc6d102", emc6d102 }, | |
333 | { } | |
334 | }; | |
335 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
336 | ||
1da177e4 | 337 | static struct i2c_driver lm85_driver = { |
67712d01 | 338 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 339 | .driver = { |
cdaf7934 LR |
340 | .name = "lm85", |
341 | }, | |
67712d01 JD |
342 | .probe = lm85_probe, |
343 | .remove = lm85_remove, | |
344 | .id_table = lm85_id, | |
345 | .detect = lm85_detect, | |
346 | .address_data = &addr_data, | |
1da177e4 LT |
347 | }; |
348 | ||
349 | ||
350 | /* 4 Fans */ | |
b353a487 JD |
351 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
352 | char *buf) | |
1da177e4 | 353 | { |
b353a487 | 354 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 355 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 356 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 357 | } |
b353a487 JD |
358 | |
359 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
360 | char *buf) | |
1da177e4 | 361 | { |
b353a487 | 362 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 363 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 364 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 365 | } |
b353a487 JD |
366 | |
367 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
368 | const char *buf, size_t count) | |
1da177e4 | 369 | { |
b353a487 | 370 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
371 | struct i2c_client *client = to_i2c_client(dev); |
372 | struct lm85_data *data = i2c_get_clientdata(client); | |
63f281a6 | 373 | unsigned long val = simple_strtoul(buf, NULL, 10); |
1da177e4 | 374 | |
9a61bf63 | 375 | mutex_lock(&data->update_lock); |
1da177e4 LT |
376 | data->fan_min[nr] = FAN_TO_REG(val); |
377 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 378 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
379 | return count; |
380 | } | |
381 | ||
382 | #define show_fan_offset(offset) \ | |
b353a487 JD |
383 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
384 | show_fan, NULL, offset - 1); \ | |
385 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
386 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
387 | |
388 | show_fan_offset(1); | |
389 | show_fan_offset(2); | |
390 | show_fan_offset(3); | |
391 | show_fan_offset(4); | |
392 | ||
393 | /* vid, vrm, alarms */ | |
394 | ||
1f44809a JD |
395 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
396 | char *buf) | |
1da177e4 LT |
397 | { |
398 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
399 | int vid; |
400 | ||
401 | if (data->type == adt7463 && (data->vid & 0x80)) { | |
402 | /* 6-pin VID (VRM 10) */ | |
403 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
404 | } else { | |
405 | /* 5-pin VID (VRM 9) */ | |
406 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
407 | } | |
408 | ||
409 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
410 | } |
411 | ||
412 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
413 | ||
1f44809a JD |
414 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
415 | char *buf) | |
1da177e4 | 416 | { |
90d6619a | 417 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
418 | return sprintf(buf, "%ld\n", (long) data->vrm); |
419 | } | |
420 | ||
1f44809a JD |
421 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
422 | const char *buf, size_t count) | |
1da177e4 | 423 | { |
8f74efe8 JD |
424 | struct lm85_data *data = dev_get_drvdata(dev); |
425 | data->vrm = simple_strtoul(buf, NULL, 10); | |
1da177e4 LT |
426 | return count; |
427 | } | |
428 | ||
429 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
430 | ||
1f44809a JD |
431 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
432 | *attr, char *buf) | |
1da177e4 LT |
433 | { |
434 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 435 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
436 | } |
437 | ||
438 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
439 | ||
bf76e9d3 JD |
440 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
441 | char *buf) | |
442 | { | |
443 | int nr = to_sensor_dev_attr(attr)->index; | |
444 | struct lm85_data *data = lm85_update_device(dev); | |
445 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
446 | } | |
447 | ||
448 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
449 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
450 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
451 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
452 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
453 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
454 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
455 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
456 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
457 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
458 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
459 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
460 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
461 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
462 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
463 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
464 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
465 | ||
1da177e4 LT |
466 | /* pwm */ |
467 | ||
b353a487 JD |
468 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
469 | char *buf) | |
1da177e4 | 470 | { |
b353a487 | 471 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 472 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 473 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 474 | } |
b353a487 JD |
475 | |
476 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
477 | const char *buf, size_t count) | |
1da177e4 | 478 | { |
b353a487 | 479 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
480 | struct i2c_client *client = to_i2c_client(dev); |
481 | struct lm85_data *data = i2c_get_clientdata(client); | |
482 | long val = simple_strtol(buf, NULL, 10); | |
483 | ||
9a61bf63 | 484 | mutex_lock(&data->update_lock); |
1da177e4 LT |
485 | data->pwm[nr] = PWM_TO_REG(val); |
486 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 487 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
488 | return count; |
489 | } | |
b353a487 JD |
490 | |
491 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
492 | *attr, char *buf) | |
1da177e4 | 493 | { |
b353a487 | 494 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 495 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 496 | int pwm_zone, enable; |
1da177e4 LT |
497 | |
498 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
499 | switch (pwm_zone) { |
500 | case -1: /* PWM is always at 100% */ | |
501 | enable = 0; | |
502 | break; | |
503 | case 0: /* PWM is always at 0% */ | |
504 | case -2: /* PWM responds to manual control */ | |
505 | enable = 1; | |
506 | break; | |
507 | default: /* PWM in automatic mode */ | |
508 | enable = 2; | |
509 | } | |
510 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
511 | } |
512 | ||
455f791e JD |
513 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
514 | *attr, const char *buf, size_t count) | |
515 | { | |
516 | int nr = to_sensor_dev_attr(attr)->index; | |
517 | struct i2c_client *client = to_i2c_client(dev); | |
518 | struct lm85_data *data = i2c_get_clientdata(client); | |
519 | long val = simple_strtol(buf, NULL, 10); | |
520 | u8 config; | |
521 | ||
522 | switch (val) { | |
523 | case 0: | |
524 | config = 3; | |
525 | break; | |
526 | case 1: | |
527 | config = 7; | |
528 | break; | |
529 | case 2: | |
530 | /* Here we have to choose arbitrarily one of the 5 possible | |
531 | configurations; I go for the safest */ | |
532 | config = 6; | |
533 | break; | |
534 | default: | |
535 | return -EINVAL; | |
536 | } | |
537 | ||
538 | mutex_lock(&data->update_lock); | |
539 | data->autofan[nr].config = lm85_read_value(client, | |
540 | LM85_REG_AFAN_CONFIG(nr)); | |
541 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
542 | | (config << 5); | |
543 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
544 | data->autofan[nr].config); | |
545 | mutex_unlock(&data->update_lock); | |
546 | return count; | |
547 | } | |
548 | ||
34e7dc6c JD |
549 | static ssize_t show_pwm_freq(struct device *dev, |
550 | struct device_attribute *attr, char *buf) | |
551 | { | |
552 | int nr = to_sensor_dev_attr(attr)->index; | |
553 | struct lm85_data *data = lm85_update_device(dev); | |
8a0795d9 JD |
554 | return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map, |
555 | data->pwm_freq[nr])); | |
34e7dc6c JD |
556 | } |
557 | ||
558 | static ssize_t set_pwm_freq(struct device *dev, | |
559 | struct device_attribute *attr, const char *buf, size_t count) | |
560 | { | |
561 | int nr = to_sensor_dev_attr(attr)->index; | |
562 | struct i2c_client *client = to_i2c_client(dev); | |
563 | struct lm85_data *data = i2c_get_clientdata(client); | |
564 | long val = simple_strtol(buf, NULL, 10); | |
565 | ||
566 | mutex_lock(&data->update_lock); | |
8a0795d9 | 567 | data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val); |
34e7dc6c JD |
568 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
569 | (data->zone[nr].range << 4) | |
570 | | data->pwm_freq[nr]); | |
571 | mutex_unlock(&data->update_lock); | |
572 | return count; | |
573 | } | |
574 | ||
1da177e4 | 575 | #define show_pwm_reg(offset) \ |
b353a487 JD |
576 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
577 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 578 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
579 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
580 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
581 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
582 | |
583 | show_pwm_reg(1); | |
584 | show_pwm_reg(2); | |
585 | show_pwm_reg(3); | |
586 | ||
587 | /* Voltages */ | |
588 | ||
b353a487 JD |
589 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
590 | char *buf) | |
1da177e4 | 591 | { |
b353a487 | 592 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 593 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
594 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
595 | data->in_ext[nr])); | |
1da177e4 | 596 | } |
b353a487 | 597 | |
1f44809a | 598 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 599 | char *buf) |
1da177e4 | 600 | { |
b353a487 | 601 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 602 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 603 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 604 | } |
b353a487 JD |
605 | |
606 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
607 | const char *buf, size_t count) | |
1da177e4 | 608 | { |
b353a487 | 609 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
610 | struct i2c_client *client = to_i2c_client(dev); |
611 | struct lm85_data *data = i2c_get_clientdata(client); | |
612 | long val = simple_strtol(buf, NULL, 10); | |
613 | ||
9a61bf63 | 614 | mutex_lock(&data->update_lock); |
1da177e4 LT |
615 | data->in_min[nr] = INS_TO_REG(nr, val); |
616 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 617 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
618 | return count; |
619 | } | |
b353a487 JD |
620 | |
621 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
622 | char *buf) | |
1da177e4 | 623 | { |
b353a487 | 624 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 625 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 626 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 627 | } |
b353a487 JD |
628 | |
629 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
630 | const char *buf, size_t count) | |
1da177e4 | 631 | { |
b353a487 | 632 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
633 | struct i2c_client *client = to_i2c_client(dev); |
634 | struct lm85_data *data = i2c_get_clientdata(client); | |
635 | long val = simple_strtol(buf, NULL, 10); | |
636 | ||
9a61bf63 | 637 | mutex_lock(&data->update_lock); |
1da177e4 LT |
638 | data->in_max[nr] = INS_TO_REG(nr, val); |
639 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 640 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
641 | return count; |
642 | } | |
b353a487 | 643 | |
1da177e4 | 644 | #define show_in_reg(offset) \ |
b353a487 JD |
645 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
646 | show_in, NULL, offset); \ | |
647 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
648 | show_in_min, set_in_min, offset); \ | |
649 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
650 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
651 | |
652 | show_in_reg(0); | |
653 | show_in_reg(1); | |
654 | show_in_reg(2); | |
655 | show_in_reg(3); | |
656 | show_in_reg(4); | |
6b9aad2d JD |
657 | show_in_reg(5); |
658 | show_in_reg(6); | |
659 | show_in_reg(7); | |
1da177e4 LT |
660 | |
661 | /* Temps */ | |
662 | ||
b353a487 JD |
663 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
664 | char *buf) | |
1da177e4 | 665 | { |
b353a487 | 666 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 667 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
668 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
669 | data->temp_ext[nr])); | |
1da177e4 | 670 | } |
b353a487 JD |
671 | |
672 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
673 | char *buf) | |
1da177e4 | 674 | { |
b353a487 | 675 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 676 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 677 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 678 | } |
b353a487 JD |
679 | |
680 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
681 | const char *buf, size_t count) | |
1da177e4 | 682 | { |
b353a487 | 683 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
684 | struct i2c_client *client = to_i2c_client(dev); |
685 | struct lm85_data *data = i2c_get_clientdata(client); | |
686 | long val = simple_strtol(buf, NULL, 10); | |
687 | ||
9a61bf63 | 688 | mutex_lock(&data->update_lock); |
1da177e4 LT |
689 | data->temp_min[nr] = TEMP_TO_REG(val); |
690 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 691 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
692 | return count; |
693 | } | |
b353a487 JD |
694 | |
695 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
696 | char *buf) | |
1da177e4 | 697 | { |
b353a487 | 698 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 699 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 700 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 701 | } |
b353a487 JD |
702 | |
703 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
704 | const char *buf, size_t count) | |
1da177e4 | 705 | { |
b353a487 | 706 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
707 | struct i2c_client *client = to_i2c_client(dev); |
708 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 709 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 710 | |
9a61bf63 | 711 | mutex_lock(&data->update_lock); |
1da177e4 LT |
712 | data->temp_max[nr] = TEMP_TO_REG(val); |
713 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 714 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
715 | return count; |
716 | } | |
b353a487 | 717 | |
1da177e4 | 718 | #define show_temp_reg(offset) \ |
b353a487 JD |
719 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
720 | show_temp, NULL, offset - 1); \ | |
721 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
722 | show_temp_min, set_temp_min, offset - 1); \ | |
723 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
724 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
725 | |
726 | show_temp_reg(1); | |
727 | show_temp_reg(2); | |
728 | show_temp_reg(3); | |
729 | ||
730 | ||
731 | /* Automatic PWM control */ | |
732 | ||
b353a487 JD |
733 | static ssize_t show_pwm_auto_channels(struct device *dev, |
734 | struct device_attribute *attr, char *buf) | |
1da177e4 | 735 | { |
b353a487 | 736 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 737 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 738 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 739 | } |
b353a487 JD |
740 | |
741 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
742 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 743 | { |
b353a487 | 744 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
745 | struct i2c_client *client = to_i2c_client(dev); |
746 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 747 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 748 | |
9a61bf63 | 749 | mutex_lock(&data->update_lock); |
1da177e4 | 750 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 751 | | ZONE_TO_REG(val); |
1da177e4 LT |
752 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
753 | data->autofan[nr].config); | |
9a61bf63 | 754 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
755 | return count; |
756 | } | |
b353a487 JD |
757 | |
758 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
759 | struct device_attribute *attr, char *buf) | |
1da177e4 | 760 | { |
b353a487 | 761 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 762 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 763 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 764 | } |
b353a487 JD |
765 | |
766 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
767 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 768 | { |
b353a487 | 769 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
770 | struct i2c_client *client = to_i2c_client(dev); |
771 | struct lm85_data *data = i2c_get_clientdata(client); | |
772 | long val = simple_strtol(buf, NULL, 10); | |
773 | ||
9a61bf63 | 774 | mutex_lock(&data->update_lock); |
1da177e4 LT |
775 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
776 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
777 | data->autofan[nr].min_pwm); | |
9a61bf63 | 778 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
779 | return count; |
780 | } | |
b353a487 JD |
781 | |
782 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
783 | struct device_attribute *attr, char *buf) | |
1da177e4 | 784 | { |
b353a487 | 785 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 786 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 787 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 788 | } |
b353a487 JD |
789 | |
790 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
791 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 792 | { |
b353a487 | 793 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
794 | struct i2c_client *client = to_i2c_client(dev); |
795 | struct lm85_data *data = i2c_get_clientdata(client); | |
796 | long val = simple_strtol(buf, NULL, 10); | |
7133e56f | 797 | u8 tmp; |
1da177e4 | 798 | |
9a61bf63 | 799 | mutex_lock(&data->update_lock); |
1da177e4 | 800 | data->autofan[nr].min_off = val; |
7133e56f JD |
801 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
802 | tmp &= ~(0x20 << nr); | |
803 | if (data->autofan[nr].min_off) | |
804 | tmp |= 0x20 << nr; | |
805 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 806 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
807 | return count; |
808 | } | |
b353a487 | 809 | |
1da177e4 | 810 | #define pwm_auto(offset) \ |
b353a487 JD |
811 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
812 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
813 | set_pwm_auto_channels, offset - 1); \ | |
814 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
815 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
816 | set_pwm_auto_pwm_min, offset - 1); \ | |
817 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
818 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 819 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 820 | |
1da177e4 LT |
821 | pwm_auto(1); |
822 | pwm_auto(2); | |
823 | pwm_auto(3); | |
824 | ||
825 | /* Temperature settings for automatic PWM control */ | |
826 | ||
b353a487 JD |
827 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
828 | struct device_attribute *attr, char *buf) | |
1da177e4 | 829 | { |
b353a487 | 830 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 831 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 832 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
833 | HYST_FROM_REG(data->zone[nr].hyst)); |
834 | } | |
b353a487 JD |
835 | |
836 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
837 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 838 | { |
b353a487 | 839 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
840 | struct i2c_client *client = to_i2c_client(dev); |
841 | struct lm85_data *data = i2c_get_clientdata(client); | |
842 | int min; | |
843 | long val = simple_strtol(buf, NULL, 10); | |
844 | ||
9a61bf63 | 845 | mutex_lock(&data->update_lock); |
1da177e4 LT |
846 | min = TEMP_FROM_REG(data->zone[nr].limit); |
847 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
848 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
1f44809a | 849 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
850 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
851 | (data->zone[0].hyst << 4) | |
1f44809a | 852 | | data->zone[1].hyst); |
1da177e4 LT |
853 | } else { |
854 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 855 | (data->zone[2].hyst << 4)); |
1da177e4 | 856 | } |
9a61bf63 | 857 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
858 | return count; |
859 | } | |
b353a487 JD |
860 | |
861 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
862 | struct device_attribute *attr, char *buf) | |
1da177e4 | 863 | { |
b353a487 | 864 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 865 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 866 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 867 | } |
b353a487 JD |
868 | |
869 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
870 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 871 | { |
b353a487 | 872 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
873 | struct i2c_client *client = to_i2c_client(dev); |
874 | struct lm85_data *data = i2c_get_clientdata(client); | |
875 | long val = simple_strtol(buf, NULL, 10); | |
876 | ||
9a61bf63 | 877 | mutex_lock(&data->update_lock); |
1da177e4 LT |
878 | data->zone[nr].limit = TEMP_TO_REG(val); |
879 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
880 | data->zone[nr].limit); | |
881 | ||
882 | /* Update temp_auto_max and temp_auto_range */ | |
883 | data->zone[nr].range = RANGE_TO_REG( | |
884 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
885 | TEMP_FROM_REG(data->zone[nr].limit)); | |
886 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
887 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 888 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 LT |
889 | |
890 | /* Update temp_auto_hyst and temp_auto_off */ | |
891 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
892 | data->zone[nr].limit) - TEMP_FROM_REG( | |
893 | data->zone[nr].off_desired)); | |
1f44809a | 894 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
895 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
896 | (data->zone[0].hyst << 4) | |
1f44809a | 897 | | data->zone[1].hyst); |
1da177e4 LT |
898 | } else { |
899 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 900 | (data->zone[2].hyst << 4)); |
1da177e4 | 901 | } |
9a61bf63 | 902 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
903 | return count; |
904 | } | |
b353a487 JD |
905 | |
906 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
907 | struct device_attribute *attr, char *buf) | |
1da177e4 | 908 | { |
b353a487 | 909 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 910 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 911 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
912 | RANGE_FROM_REG(data->zone[nr].range)); |
913 | } | |
b353a487 JD |
914 | |
915 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
916 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 917 | { |
b353a487 | 918 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
919 | struct i2c_client *client = to_i2c_client(dev); |
920 | struct lm85_data *data = i2c_get_clientdata(client); | |
921 | int min; | |
922 | long val = simple_strtol(buf, NULL, 10); | |
923 | ||
9a61bf63 | 924 | mutex_lock(&data->update_lock); |
1da177e4 LT |
925 | min = TEMP_FROM_REG(data->zone[nr].limit); |
926 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
927 | data->zone[nr].range = RANGE_TO_REG( | |
928 | val - min); | |
929 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
930 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 931 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 932 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
933 | return count; |
934 | } | |
b353a487 JD |
935 | |
936 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
937 | struct device_attribute *attr, char *buf) | |
1da177e4 | 938 | { |
b353a487 | 939 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 940 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 941 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 942 | } |
b353a487 JD |
943 | |
944 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 945 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 946 | { |
b353a487 | 947 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
948 | struct i2c_client *client = to_i2c_client(dev); |
949 | struct lm85_data *data = i2c_get_clientdata(client); | |
950 | long val = simple_strtol(buf, NULL, 10); | |
951 | ||
9a61bf63 | 952 | mutex_lock(&data->update_lock); |
1da177e4 LT |
953 | data->zone[nr].critical = TEMP_TO_REG(val); |
954 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
955 | data->zone[nr].critical); | |
9a61bf63 | 956 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
957 | return count; |
958 | } | |
b353a487 | 959 | |
1da177e4 | 960 | #define temp_auto(offset) \ |
b353a487 JD |
961 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
962 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
963 | set_temp_auto_temp_off, offset - 1); \ | |
964 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
965 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
966 | set_temp_auto_temp_min, offset - 1); \ | |
967 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
968 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
969 | set_temp_auto_temp_max, offset - 1); \ | |
970 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
971 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
972 | set_temp_auto_temp_crit, offset - 1); | |
973 | ||
1da177e4 LT |
974 | temp_auto(1); |
975 | temp_auto(2); | |
976 | temp_auto(3); | |
977 | ||
0501a381 | 978 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
979 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
980 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
981 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
982 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
983 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
984 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
985 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
986 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
987 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
988 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
989 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
990 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
991 | |
992 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
993 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
994 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
995 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
996 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
997 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
34e7dc6c JD |
998 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
999 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1000 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
b353a487 JD |
1001 | |
1002 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1003 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1004 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1005 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1006 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1007 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1008 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1009 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1010 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1011 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1012 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1013 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1014 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1015 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1016 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1017 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1018 | |
1019 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1020 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1021 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1022 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1023 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1024 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1025 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1026 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1027 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1028 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1029 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1030 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1031 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1032 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1033 | |
1034 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1035 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1036 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1037 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1038 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1039 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1040 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1041 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1042 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
b353a487 JD |
1043 | |
1044 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1045 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1046 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1047 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1048 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1049 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1050 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1051 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1052 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1053 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1054 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1055 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1056 | ||
0501a381 MH |
1057 | &dev_attr_vrm.attr, |
1058 | &dev_attr_cpu0_vid.attr, | |
1059 | &dev_attr_alarms.attr, | |
0501a381 MH |
1060 | NULL |
1061 | }; | |
1062 | ||
1063 | static const struct attribute_group lm85_group = { | |
1064 | .attrs = lm85_attributes, | |
1065 | }; | |
1066 | ||
6b9aad2d | 1067 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1068 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1069 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1070 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1071 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1072 | NULL |
1073 | }; | |
1074 | ||
6b9aad2d JD |
1075 | static const struct attribute_group lm85_group_in4 = { |
1076 | .attrs = lm85_attributes_in4, | |
1077 | }; | |
1078 | ||
1079 | static struct attribute *lm85_attributes_in567[] = { | |
1080 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1081 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1082 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1083 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1084 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1085 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1086 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1087 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1088 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1089 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1090 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1091 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1092 | NULL |
1093 | }; | |
1094 | ||
1095 | static const struct attribute_group lm85_group_in567 = { | |
1096 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1097 | }; |
1098 | ||
5f447594 JD |
1099 | static void lm85_init_client(struct i2c_client *client) |
1100 | { | |
1101 | int value; | |
1102 | ||
1103 | /* Start monitoring if needed */ | |
1104 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1105 | if (!(value & 0x01)) { | |
1106 | dev_info(&client->dev, "Starting monitoring\n"); | |
1107 | lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); | |
1108 | } | |
1109 | ||
1110 | /* Warn about unusual configuration bits */ | |
1111 | if (value & 0x02) | |
1112 | dev_warn(&client->dev, "Device configuration is locked\n"); | |
1113 | if (!(value & 0x04)) | |
1114 | dev_warn(&client->dev, "Device is not ready\n"); | |
1115 | } | |
1116 | ||
67712d01 JD |
1117 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1118 | static int lm85_detect(struct i2c_client *client, int kind, | |
1119 | struct i2c_board_info *info) | |
1da177e4 | 1120 | { |
67712d01 JD |
1121 | struct i2c_adapter *adapter = client->adapter; |
1122 | int address = client->addr; | |
e89e22b2 | 1123 | const char *type_name; |
1da177e4 | 1124 | |
e89e22b2 | 1125 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1126 | /* We need to be able to do byte I/O */ |
67712d01 | 1127 | return -ENODEV; |
1f44809a | 1128 | } |
1da177e4 | 1129 | |
69fc1feb JD |
1130 | /* If auto-detecting, determine the chip type */ |
1131 | if (kind < 0) { | |
1132 | int company = lm85_read_value(client, LM85_REG_COMPANY); | |
1133 | int verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1134 | ||
1135 | dev_dbg(&adapter->dev, "Detecting device at 0x%02x with " | |
1136 | "COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1137 | address, company, verstep); | |
1138 | ||
1139 | /* All supported chips have the version in common */ | |
1140 | if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC) { | |
1141 | dev_dbg(&adapter->dev, "Autodetection failed: " | |
1142 | "unsupported version\n"); | |
67712d01 | 1143 | return -ENODEV; |
69fc1feb JD |
1144 | } |
1145 | kind = any_chip; | |
1146 | ||
1147 | /* Now, refine the detection */ | |
1148 | if (company == LM85_COMPANY_NATIONAL) { | |
1149 | switch (verstep) { | |
1150 | case LM85_VERSTEP_LM85C: | |
1151 | kind = lm85c; | |
1152 | break; | |
1153 | case LM85_VERSTEP_LM85B: | |
1154 | kind = lm85b; | |
1155 | break; | |
1156 | } | |
1157 | } else if (company == LM85_COMPANY_ANALOG_DEV) { | |
1158 | switch (verstep) { | |
1159 | case LM85_VERSTEP_ADM1027: | |
1160 | kind = adm1027; | |
1161 | break; | |
1162 | case LM85_VERSTEP_ADT7463: | |
1163 | case LM85_VERSTEP_ADT7463C: | |
1164 | kind = adt7463; | |
1165 | break; | |
1da177e4 | 1166 | } |
69fc1feb JD |
1167 | } else if (company == LM85_COMPANY_SMSC) { |
1168 | switch (verstep) { | |
1169 | case LM85_VERSTEP_EMC6D100_A0: | |
1170 | case LM85_VERSTEP_EMC6D100_A1: | |
1171 | /* Note: we can't tell a '100 from a '101 */ | |
1172 | kind = emc6d100; | |
1173 | break; | |
1174 | case LM85_VERSTEP_EMC6D102: | |
1175 | kind = emc6d102; | |
1176 | break; | |
1177 | } | |
1178 | } else { | |
1179 | dev_dbg(&adapter->dev, "Autodetection failed: " | |
1180 | "unknown vendor\n"); | |
67712d01 | 1181 | return -ENODEV; |
1da177e4 LT |
1182 | } |
1183 | } | |
1184 | ||
e89e22b2 JD |
1185 | switch (kind) { |
1186 | case lm85b: | |
1da177e4 | 1187 | type_name = "lm85b"; |
e89e22b2 JD |
1188 | break; |
1189 | case lm85c: | |
1da177e4 | 1190 | type_name = "lm85c"; |
e89e22b2 JD |
1191 | break; |
1192 | case adm1027: | |
1da177e4 | 1193 | type_name = "adm1027"; |
e89e22b2 JD |
1194 | break; |
1195 | case adt7463: | |
1da177e4 | 1196 | type_name = "adt7463"; |
e89e22b2 JD |
1197 | break; |
1198 | case emc6d100: | |
1da177e4 | 1199 | type_name = "emc6d100"; |
e89e22b2 JD |
1200 | break; |
1201 | case emc6d102: | |
1da177e4 | 1202 | type_name = "emc6d102"; |
e89e22b2 JD |
1203 | break; |
1204 | default: | |
1205 | type_name = "lm85"; | |
1206 | } | |
67712d01 JD |
1207 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1208 | ||
1209 | return 0; | |
1210 | } | |
1da177e4 | 1211 | |
67712d01 JD |
1212 | static int lm85_probe(struct i2c_client *client, |
1213 | const struct i2c_device_id *id) | |
1214 | { | |
1215 | struct lm85_data *data; | |
1216 | int err; | |
1217 | ||
1218 | data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL); | |
1219 | if (!data) | |
1220 | return -ENOMEM; | |
1221 | ||
1222 | i2c_set_clientdata(client, data); | |
1223 | data->type = id->driver_data; | |
9a61bf63 | 1224 | mutex_init(&data->update_lock); |
1da177e4 | 1225 | |
67712d01 JD |
1226 | /* Fill in the chip specific driver values */ |
1227 | switch (data->type) { | |
1228 | case adm1027: | |
1229 | case adt7463: | |
1230 | case emc6d100: | |
1231 | case emc6d102: | |
1232 | data->freq_map = adm1027_freq_map; | |
1233 | break; | |
1234 | default: | |
1235 | data->freq_map = lm85_freq_map; | |
1236 | } | |
1da177e4 LT |
1237 | |
1238 | /* Set the VRM version */ | |
303760b4 | 1239 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1240 | |
1241 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1242 | lm85_init_client(client); |
1da177e4 LT |
1243 | |
1244 | /* Register sysfs hooks */ | |
e89e22b2 JD |
1245 | err = sysfs_create_group(&client->dev.kobj, &lm85_group); |
1246 | if (err) | |
67712d01 | 1247 | goto ERROR1; |
1da177e4 | 1248 | |
9c516ef4 JD |
1249 | /* The ADT7463 has an optional VRM 10 mode where pin 21 is used |
1250 | as a sixth digital VID input rather than an analog input. */ | |
e89e22b2 | 1251 | data->vid = lm85_read_value(client, LM85_REG_VID); |
67712d01 | 1252 | if (!(data->type == adt7463 && (data->vid & 0x80))) |
e89e22b2 | 1253 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d JD |
1254 | &lm85_group_in4))) |
1255 | goto ERROR3; | |
1256 | ||
1257 | /* The EMC6D100 has 3 additional voltage inputs */ | |
67712d01 | 1258 | if (data->type == emc6d100) |
e89e22b2 | 1259 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1260 | &lm85_group_in567))) |
0501a381 MH |
1261 | goto ERROR3; |
1262 | ||
e89e22b2 | 1263 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
1264 | if (IS_ERR(data->hwmon_dev)) { |
1265 | err = PTR_ERR(data->hwmon_dev); | |
0501a381 | 1266 | goto ERROR3; |
9c516ef4 JD |
1267 | } |
1268 | ||
1da177e4 LT |
1269 | return 0; |
1270 | ||
1271 | /* Error out and cleanup code */ | |
1f44809a | 1272 | ERROR3: |
e89e22b2 JD |
1273 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
1274 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); | |
67712d01 | 1275 | if (data->type == emc6d100) |
e89e22b2 | 1276 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); |
1f44809a | 1277 | ERROR1: |
1da177e4 | 1278 | kfree(data); |
1da177e4 LT |
1279 | return err; |
1280 | } | |
1281 | ||
67712d01 | 1282 | static int lm85_remove(struct i2c_client *client) |
1da177e4 | 1283 | { |
943b0830 | 1284 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1285 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1286 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1287 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1288 | if (data->type == emc6d100) | |
1289 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
943b0830 | 1290 | kfree(data); |
1da177e4 LT |
1291 | return 0; |
1292 | } | |
1293 | ||
1294 | ||
d8d20615 | 1295 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1296 | { |
1297 | int res; | |
1298 | ||
1299 | /* What size location is it? */ | |
1f44809a JD |
1300 | switch (reg) { |
1301 | case LM85_REG_FAN(0): /* Read WORD data */ | |
1302 | case LM85_REG_FAN(1): | |
1303 | case LM85_REG_FAN(2): | |
1304 | case LM85_REG_FAN(3): | |
1305 | case LM85_REG_FAN_MIN(0): | |
1306 | case LM85_REG_FAN_MIN(1): | |
1307 | case LM85_REG_FAN_MIN(2): | |
1308 | case LM85_REG_FAN_MIN(3): | |
1309 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
1310 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
1311 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
1312 | break; | |
1da177e4 LT |
1313 | default: /* Read BYTE data */ |
1314 | res = i2c_smbus_read_byte_data(client, reg); | |
1f44809a | 1315 | break; |
1da177e4 LT |
1316 | } |
1317 | ||
1f44809a | 1318 | return res; |
1da177e4 LT |
1319 | } |
1320 | ||
e89e22b2 | 1321 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 | 1322 | { |
1f44809a JD |
1323 | switch (reg) { |
1324 | case LM85_REG_FAN(0): /* Write WORD data */ | |
1325 | case LM85_REG_FAN(1): | |
1326 | case LM85_REG_FAN(2): | |
1327 | case LM85_REG_FAN(3): | |
1328 | case LM85_REG_FAN_MIN(0): | |
1329 | case LM85_REG_FAN_MIN(1): | |
1330 | case LM85_REG_FAN_MIN(2): | |
1331 | case LM85_REG_FAN_MIN(3): | |
1da177e4 | 1332 | /* NOTE: ALARM is read only, so not included here */ |
e89e22b2 JD |
1333 | i2c_smbus_write_byte_data(client, reg, value & 0xff); |
1334 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
1f44809a | 1335 | break; |
1da177e4 | 1336 | default: /* Write BYTE data */ |
e89e22b2 | 1337 | i2c_smbus_write_byte_data(client, reg, value); |
1f44809a | 1338 | break; |
1da177e4 | 1339 | } |
1da177e4 LT |
1340 | } |
1341 | ||
1da177e4 LT |
1342 | static struct lm85_data *lm85_update_device(struct device *dev) |
1343 | { | |
1344 | struct i2c_client *client = to_i2c_client(dev); | |
1345 | struct lm85_data *data = i2c_get_clientdata(client); | |
1346 | int i; | |
1347 | ||
9a61bf63 | 1348 | mutex_lock(&data->update_lock); |
1da177e4 | 1349 | |
1f44809a JD |
1350 | if (!data->valid || |
1351 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
1da177e4 LT |
1352 | /* Things that change quickly */ |
1353 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1f44809a | 1354 | |
1da177e4 LT |
1355 | /* Have to read extended bits first to "freeze" the |
1356 | * more significant bits that are read later. | |
5a4d3ef3 JD |
1357 | * There are 2 additional resolution bits per channel and we |
1358 | * have room for 4, so we shift them to the left. | |
1da177e4 | 1359 | */ |
1f44809a | 1360 | if (data->type == adm1027 || data->type == adt7463) { |
1da177e4 LT |
1361 | int ext1 = lm85_read_value(client, |
1362 | ADM1027_REG_EXTEND_ADC1); | |
1363 | int ext2 = lm85_read_value(client, | |
1364 | ADM1027_REG_EXTEND_ADC2); | |
1365 | int val = (ext1 << 8) + ext2; | |
1366 | ||
1f44809a JD |
1367 | for (i = 0; i <= 4; i++) |
1368 | data->in_ext[i] = | |
1369 | ((val >> (i * 2)) & 0x03) << 2; | |
1da177e4 | 1370 | |
1f44809a JD |
1371 | for (i = 0; i <= 2; i++) |
1372 | data->temp_ext[i] = | |
1373 | (val >> ((i + 4) * 2)) & 0x0c; | |
1da177e4 LT |
1374 | } |
1375 | ||
9c516ef4 JD |
1376 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1377 | ||
1378 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1379 | data->in[i] = |
1380 | lm85_read_value(client, LM85_REG_IN(i)); | |
e89e22b2 JD |
1381 | data->fan[i] = |
1382 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1da177e4 LT |
1383 | } |
1384 | ||
9c516ef4 JD |
1385 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1386 | data->in[4] = lm85_read_value(client, | |
1387 | LM85_REG_IN(4)); | |
1388 | } | |
1389 | ||
1da177e4 LT |
1390 | for (i = 0; i <= 2; ++i) { |
1391 | data->temp[i] = | |
1392 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1da177e4 LT |
1393 | data->pwm[i] = |
1394 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1395 | } | |
1396 | ||
1397 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1398 | ||
dd1ac538 | 1399 | if (data->type == emc6d100) { |
1da177e4 LT |
1400 | /* Three more voltage sensors */ |
1401 | for (i = 5; i <= 7; ++i) { | |
1f44809a JD |
1402 | data->in[i] = lm85_read_value(client, |
1403 | EMC6D100_REG_IN(i)); | |
1da177e4 LT |
1404 | } |
1405 | /* More alarm bits */ | |
1f44809a JD |
1406 | data->alarms |= lm85_read_value(client, |
1407 | EMC6D100_REG_ALARM3) << 16; | |
1408 | } else if (data->type == emc6d102) { | |
1da177e4 LT |
1409 | /* Have to read LSB bits after the MSB ones because |
1410 | the reading of the MSB bits has frozen the | |
1411 | LSBs (backward from the ADM1027). | |
1412 | */ | |
1413 | int ext1 = lm85_read_value(client, | |
1414 | EMC6D102_REG_EXTEND_ADC1); | |
1415 | int ext2 = lm85_read_value(client, | |
1416 | EMC6D102_REG_EXTEND_ADC2); | |
1417 | int ext3 = lm85_read_value(client, | |
1418 | EMC6D102_REG_EXTEND_ADC3); | |
1419 | int ext4 = lm85_read_value(client, | |
1420 | EMC6D102_REG_EXTEND_ADC4); | |
1421 | data->in_ext[0] = ext3 & 0x0f; | |
1422 | data->in_ext[1] = ext4 & 0x0f; | |
e89e22b2 JD |
1423 | data->in_ext[2] = ext4 >> 4; |
1424 | data->in_ext[3] = ext3 >> 4; | |
1425 | data->in_ext[4] = ext2 >> 4; | |
1da177e4 LT |
1426 | |
1427 | data->temp_ext[0] = ext1 & 0x0f; | |
1428 | data->temp_ext[1] = ext2 & 0x0f; | |
e89e22b2 | 1429 | data->temp_ext[2] = ext1 >> 4; |
1da177e4 LT |
1430 | } |
1431 | ||
1f44809a JD |
1432 | data->last_reading = jiffies; |
1433 | } /* last_reading */ | |
1da177e4 | 1434 | |
1f44809a JD |
1435 | if (!data->valid || |
1436 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
1da177e4 LT |
1437 | /* Things that don't change often */ |
1438 | dev_dbg(&client->dev, "Reading config values\n"); | |
1439 | ||
9c516ef4 | 1440 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1441 | data->in_min[i] = |
1442 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1443 | data->in_max[i] = | |
1444 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
e89e22b2 JD |
1445 | data->fan_min[i] = |
1446 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1da177e4 LT |
1447 | } |
1448 | ||
9c516ef4 JD |
1449 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1450 | data->in_min[4] = lm85_read_value(client, | |
1451 | LM85_REG_IN_MIN(4)); | |
1452 | data->in_max[4] = lm85_read_value(client, | |
1453 | LM85_REG_IN_MAX(4)); | |
1454 | } | |
1455 | ||
1f44809a | 1456 | if (data->type == emc6d100) { |
1da177e4 | 1457 | for (i = 5; i <= 7; ++i) { |
1f44809a JD |
1458 | data->in_min[i] = lm85_read_value(client, |
1459 | EMC6D100_REG_IN_MIN(i)); | |
1460 | data->in_max[i] = lm85_read_value(client, | |
1461 | EMC6D100_REG_IN_MAX(i)); | |
1da177e4 LT |
1462 | } |
1463 | } | |
1464 | ||
1da177e4 | 1465 | for (i = 0; i <= 2; ++i) { |
e89e22b2 JD |
1466 | int val; |
1467 | ||
1da177e4 LT |
1468 | data->temp_min[i] = |
1469 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1470 | data->temp_max[i] = | |
1471 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1da177e4 | 1472 | |
1da177e4 LT |
1473 | data->autofan[i].config = |
1474 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1475 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
34e7dc6c | 1476 | data->pwm_freq[i] = val & 0x07; |
e89e22b2 | 1477 | data->zone[i].range = val >> 4; |
1da177e4 LT |
1478 | data->autofan[i].min_pwm = |
1479 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1480 | data->zone[i].limit = | |
1481 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1482 | data->zone[i].critical = | |
1483 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1484 | } | |
1485 | ||
1486 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1f44809a JD |
1487 | data->autofan[0].min_off = (i & 0x20) != 0; |
1488 | data->autofan[1].min_off = (i & 0x40) != 0; | |
1489 | data->autofan[2].min_off = (i & 0x80) != 0; | |
1da177e4 LT |
1490 | |
1491 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
e89e22b2 | 1492 | data->zone[0].hyst = i >> 4; |
1f44809a | 1493 | data->zone[1].hyst = i & 0x0f; |
1da177e4 LT |
1494 | |
1495 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
e89e22b2 | 1496 | data->zone[2].hyst = i >> 4; |
1da177e4 | 1497 | |
1da177e4 | 1498 | data->last_config = jiffies; |
1f44809a | 1499 | } /* last_config */ |
1da177e4 LT |
1500 | |
1501 | data->valid = 1; | |
1502 | ||
9a61bf63 | 1503 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1504 | |
1505 | return data; | |
1506 | } | |
1507 | ||
1508 | ||
1509 | static int __init sm_lm85_init(void) | |
1510 | { | |
1511 | return i2c_add_driver(&lm85_driver); | |
1512 | } | |
1513 | ||
1f44809a | 1514 | static void __exit sm_lm85_exit(void) |
1da177e4 LT |
1515 | { |
1516 | i2c_del_driver(&lm85_driver); | |
1517 | } | |
1518 | ||
1da177e4 | 1519 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1520 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1521 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1522 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 LT |
1523 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |
1524 | ||
1525 | module_init(sm_lm85_init); | |
1526 | module_exit(sm_lm85_exit); |