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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 */ | |
79b92f2b DW |
42 | I2C_CLIENT_INSMOD_7(lm85b, lm85c, adm1027, adt7463, adt7468, emc6d100, |
43 | emc6d102); | |
1da177e4 LT |
44 | |
45 | /* The LM85 registers */ | |
46 | ||
47 | #define LM85_REG_IN(nr) (0x20 + (nr)) | |
48 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
49 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
50 | ||
51 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) | |
52 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
53 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
54 | ||
55 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
1f44809a JD |
56 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
57 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 LT |
58 | |
59 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
60 | ||
1da177e4 LT |
61 | #define LM85_REG_COMPANY 0x3e |
62 | #define LM85_REG_VERSTEP 0x3f | |
79b92f2b DW |
63 | |
64 | #define ADT7468_REG_CFG5 0x7c | |
65 | #define ADT7468_OFF64 0x01 | |
66 | #define IS_ADT7468_OFF64(data) \ | |
67 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) | |
68 | ||
1da177e4 | 69 | /* These are the recognized values for the above regs */ |
1da177e4 LT |
70 | #define LM85_COMPANY_NATIONAL 0x01 |
71 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
1f44809a | 72 | #define LM85_COMPANY_SMSC 0x5c |
1da177e4 LT |
73 | #define LM85_VERSTEP_VMASK 0xf0 |
74 | #define LM85_VERSTEP_GENERIC 0x60 | |
c15ade65 | 75 | #define LM85_VERSTEP_GENERIC2 0x70 |
1da177e4 LT |
76 | #define LM85_VERSTEP_LM85C 0x60 |
77 | #define LM85_VERSTEP_LM85B 0x62 | |
78 | #define LM85_VERSTEP_ADM1027 0x60 | |
79 | #define LM85_VERSTEP_ADT7463 0x62 | |
80 | #define LM85_VERSTEP_ADT7463C 0x6A | |
79b92f2b DW |
81 | #define LM85_VERSTEP_ADT7468_1 0x71 |
82 | #define LM85_VERSTEP_ADT7468_2 0x72 | |
1da177e4 LT |
83 | #define LM85_VERSTEP_EMC6D100_A0 0x60 |
84 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
85 | #define LM85_VERSTEP_EMC6D102 0x65 | |
86 | ||
87 | #define LM85_REG_CONFIG 0x40 | |
88 | ||
89 | #define LM85_REG_ALARM1 0x41 | |
90 | #define LM85_REG_ALARM2 0x42 | |
91 | ||
92 | #define LM85_REG_VID 0x43 | |
93 | ||
94 | /* Automated FAN control */ | |
95 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
96 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
97 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
1da177e4 LT |
98 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) |
99 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
100 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
101 | #define LM85_REG_AFAN_HYST1 0x6d | |
102 | #define LM85_REG_AFAN_HYST2 0x6e | |
103 | ||
1da177e4 LT |
104 | #define ADM1027_REG_EXTEND_ADC1 0x76 |
105 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
106 | |
107 | #define EMC6D100_REG_ALARM3 0x7d | |
108 | /* IN5, IN6 and IN7 */ | |
1f44809a JD |
109 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
110 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
111 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
1da177e4 LT |
112 | #define EMC6D102_REG_EXTEND_ADC1 0x85 |
113 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
114 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
115 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
116 | ||
1da177e4 | 117 | |
1f44809a | 118 | /* Conversions. Rounding and limit checking is only done on the TO_REG |
1da177e4 LT |
119 | variants. Note that you should be a bit careful with which arguments |
120 | these macros are called: arguments may be evaluated more than once. | |
121 | */ | |
122 | ||
123 | /* IN are scaled acording to built-in resistors */ | |
e89e22b2 | 124 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
125 | 2500, 2250, 3300, 5000, 12000, |
126 | 3300, 1500, 1800 /*EMC6D100*/ | |
127 | }; | |
128 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 129 | |
1f44809a JD |
130 | #define INS_TO_REG(n, val) \ |
131 | SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255) | |
1da177e4 | 132 | |
1f44809a | 133 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 134 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 135 | |
1f44809a | 136 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
137 | |
138 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
139 | static inline u16 FAN_TO_REG(unsigned long val) |
140 | { | |
141 | if (!val) | |
142 | return 0xffff; | |
143 | return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); | |
144 | } | |
1f44809a JD |
145 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
146 | 5400000 / (val)) | |
1da177e4 LT |
147 | |
148 | /* Temperature is reported in .001 degC increments */ | |
149 | #define TEMP_TO_REG(val) \ | |
1f44809a JD |
150 | SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127) |
151 | #define TEMPEXT_FROM_REG(val, ext) \ | |
5a4d3ef3 JD |
152 | SCALE(((val) << 4) + (ext), 16, 1000) |
153 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 154 | |
1f44809a | 155 | #define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255) |
1da177e4 LT |
156 | #define PWM_FROM_REG(val) (val) |
157 | ||
158 | ||
159 | /* ZONEs have the following parameters: | |
160 | * Limit (low) temp, 1. degC | |
161 | * Hysteresis (below limit), 1. degC (0-15) | |
162 | * Range of speed control, .1 degC (2-80) | |
163 | * Critical (high) temp, 1. degC | |
164 | * | |
165 | * FAN PWMs have the following parameters: | |
166 | * Reference Zone, 1, 2, 3, etc. | |
167 | * Spinup time, .05 sec | |
168 | * PWM value at limit/low temp, 1 count | |
169 | * PWM Frequency, 1. Hz | |
170 | * PWM is Min or OFF below limit, flag | |
171 | * Invert PWM output, flag | |
172 | * | |
173 | * Some chips filter the temp, others the fan. | |
174 | * Filter constant (or disabled) .1 seconds | |
175 | */ | |
176 | ||
177 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 178 | static const int lm85_range_map[] = { |
1f44809a JD |
179 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
180 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
181 | }; | |
182 | ||
183 | static int RANGE_TO_REG(int range) | |
1da177e4 LT |
184 | { |
185 | int i; | |
186 | ||
d38b1497 | 187 | /* Find the closest match */ |
1b92adad JD |
188 | for (i = 0; i < 15; ++i) { |
189 | if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2) | |
190 | break; | |
1da177e4 | 191 | } |
d38b1497 | 192 | |
1b92adad | 193 | return i; |
1da177e4 | 194 | } |
1f44809a | 195 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 196 | |
1da177e4 | 197 | /* These are the PWM frequency encodings */ |
34e7dc6c | 198 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
199 | 10, 15, 23, 30, 38, 47, 61, 94 |
200 | }; | |
201 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
202 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a JD |
203 | }; |
204 | ||
8a0795d9 | 205 | static int FREQ_TO_REG(const int *map, int freq) |
1da177e4 LT |
206 | { |
207 | int i; | |
208 | ||
86010c98 | 209 | /* Find the closest match */ |
1f44809a | 210 | for (i = 0; i < 7; ++i) |
8a0795d9 | 211 | if (freq <= (map[i] + map[i + 1]) / 2) |
1f44809a | 212 | break; |
e89e22b2 | 213 | return i; |
1da177e4 | 214 | } |
8a0795d9 JD |
215 | |
216 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
217 | { | |
218 | return map[reg & 0x07]; | |
219 | } | |
1da177e4 LT |
220 | |
221 | /* Since we can't use strings, I'm abusing these numbers | |
222 | * to stand in for the following meanings: | |
223 | * 1 -- PWM responds to Zone 1 | |
224 | * 2 -- PWM responds to Zone 2 | |
225 | * 3 -- PWM responds to Zone 3 | |
226 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
227 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
228 | * 0 -- PWM is always at 0% (ie, off) | |
229 | * -1 -- PWM is always at 100% | |
230 | * -2 -- PWM responds to manual control | |
231 | */ | |
232 | ||
e89e22b2 JD |
233 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
234 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 235 | |
1f44809a | 236 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
237 | { |
238 | int i; | |
239 | ||
1f44809a JD |
240 | for (i = 0; i <= 7; ++i) |
241 | if (zone == lm85_zone_map[i]) | |
242 | break; | |
243 | if (i > 7) /* Not found. */ | |
1da177e4 | 244 | i = 3; /* Always 100% */ |
e89e22b2 | 245 | return i << 5; |
1da177e4 LT |
246 | } |
247 | ||
1f44809a JD |
248 | #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15) |
249 | #define HYST_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 250 | |
1da177e4 LT |
251 | /* Chip sampling rates |
252 | * | |
253 | * Some sensors are not updated more frequently than once per second | |
254 | * so it doesn't make sense to read them more often than that. | |
255 | * We cache the results and return the saved data if the driver | |
256 | * is called again before a second has elapsed. | |
257 | * | |
258 | * Also, there is significant configuration data for this chip | |
259 | * given the automatic PWM fan control that is possible. There | |
260 | * are about 47 bytes of config data to only 22 bytes of actual | |
261 | * readings. So, we keep the config data up to date in the cache | |
262 | * when it is written and only sample it once every 1 *minute* | |
263 | */ | |
264 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
265 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
266 | ||
1da177e4 LT |
267 | /* LM85 can automatically adjust fan speeds based on temperature |
268 | * This structure encapsulates an entire Zone config. There are | |
269 | * three zones (one for each temperature input) on the lm85 | |
270 | */ | |
271 | struct lm85_zone { | |
272 | s8 limit; /* Low temp limit */ | |
273 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
274 | u8 range; /* Temp range, encoded */ | |
275 | s8 critical; /* "All fans ON" temp limit */ | |
1f44809a | 276 | u8 off_desired; /* Actual "off" temperature specified. Preserved |
1da177e4 LT |
277 | * to prevent "drift" as other autofan control |
278 | * values change. | |
279 | */ | |
1f44809a | 280 | u8 max_desired; /* Actual "max" temperature specified. Preserved |
1da177e4 LT |
281 | * to prevent "drift" as other autofan control |
282 | * values change. | |
283 | */ | |
284 | }; | |
285 | ||
286 | struct lm85_autofan { | |
287 | u8 config; /* Register value */ | |
1da177e4 LT |
288 | u8 min_pwm; /* Minimum PWM value, encoded */ |
289 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
290 | }; | |
291 | ||
ed6bafbf JD |
292 | /* For each registered chip, we need to keep some data in memory. |
293 | The structure is dynamically allocated. */ | |
1da177e4 | 294 | struct lm85_data { |
1beeffe4 | 295 | struct device *hwmon_dev; |
8a0795d9 | 296 | const int *freq_map; |
1da177e4 LT |
297 | enum chips type; |
298 | ||
9a61bf63 | 299 | struct mutex update_lock; |
1da177e4 LT |
300 | int valid; /* !=0 if following fields are valid */ |
301 | unsigned long last_reading; /* In jiffies */ | |
302 | unsigned long last_config; /* In jiffies */ | |
303 | ||
304 | u8 in[8]; /* Register value */ | |
305 | u8 in_max[8]; /* Register value */ | |
306 | u8 in_min[8]; /* Register value */ | |
307 | s8 temp[3]; /* Register value */ | |
308 | s8 temp_min[3]; /* Register value */ | |
309 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
310 | u16 fan[4]; /* Register value */ |
311 | u16 fan_min[4]; /* Register value */ | |
312 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 313 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
314 | u8 temp_ext[3]; /* Decoded values */ |
315 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
316 | u8 vid; /* Register value */ |
317 | u8 vrm; /* VRM version */ | |
1da177e4 | 318 | u32 alarms; /* Register encoding, combined */ |
79b92f2b | 319 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
1da177e4 LT |
320 | struct lm85_autofan autofan[3]; |
321 | struct lm85_zone zone[3]; | |
322 | }; | |
323 | ||
67712d01 JD |
324 | static int lm85_detect(struct i2c_client *client, int kind, |
325 | struct i2c_board_info *info); | |
326 | static int lm85_probe(struct i2c_client *client, | |
327 | const struct i2c_device_id *id); | |
328 | static int lm85_remove(struct i2c_client *client); | |
1da177e4 | 329 | |
f6c27fc1 | 330 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
e89e22b2 | 331 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value); |
1da177e4 | 332 | static struct lm85_data *lm85_update_device(struct device *dev); |
1da177e4 LT |
333 | |
334 | ||
67712d01 JD |
335 | static const struct i2c_device_id lm85_id[] = { |
336 | { "adm1027", adm1027 }, | |
337 | { "adt7463", adt7463 }, | |
c15ade65 | 338 | { "adt7468", adt7468 }, |
67712d01 JD |
339 | { "lm85", any_chip }, |
340 | { "lm85b", lm85b }, | |
341 | { "lm85c", lm85c }, | |
342 | { "emc6d100", emc6d100 }, | |
343 | { "emc6d101", emc6d100 }, | |
344 | { "emc6d102", emc6d102 }, | |
345 | { } | |
346 | }; | |
347 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
348 | ||
1da177e4 | 349 | static struct i2c_driver lm85_driver = { |
67712d01 | 350 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 351 | .driver = { |
cdaf7934 LR |
352 | .name = "lm85", |
353 | }, | |
67712d01 JD |
354 | .probe = lm85_probe, |
355 | .remove = lm85_remove, | |
356 | .id_table = lm85_id, | |
357 | .detect = lm85_detect, | |
358 | .address_data = &addr_data, | |
1da177e4 LT |
359 | }; |
360 | ||
361 | ||
362 | /* 4 Fans */ | |
b353a487 JD |
363 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
364 | char *buf) | |
1da177e4 | 365 | { |
b353a487 | 366 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 367 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 368 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 369 | } |
b353a487 JD |
370 | |
371 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
372 | char *buf) | |
1da177e4 | 373 | { |
b353a487 | 374 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 375 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 376 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 377 | } |
b353a487 JD |
378 | |
379 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
380 | const char *buf, size_t count) | |
1da177e4 | 381 | { |
b353a487 | 382 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
383 | struct i2c_client *client = to_i2c_client(dev); |
384 | struct lm85_data *data = i2c_get_clientdata(client); | |
63f281a6 | 385 | unsigned long val = simple_strtoul(buf, NULL, 10); |
1da177e4 | 386 | |
9a61bf63 | 387 | mutex_lock(&data->update_lock); |
1da177e4 LT |
388 | data->fan_min[nr] = FAN_TO_REG(val); |
389 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 390 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
391 | return count; |
392 | } | |
393 | ||
394 | #define show_fan_offset(offset) \ | |
b353a487 JD |
395 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
396 | show_fan, NULL, offset - 1); \ | |
397 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
398 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
399 | |
400 | show_fan_offset(1); | |
401 | show_fan_offset(2); | |
402 | show_fan_offset(3); | |
403 | show_fan_offset(4); | |
404 | ||
405 | /* vid, vrm, alarms */ | |
406 | ||
1f44809a JD |
407 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
408 | char *buf) | |
1da177e4 LT |
409 | { |
410 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
411 | int vid; |
412 | ||
8ef1f029 DW |
413 | if ((data->type == adt7463 || data->type == adt7468) && |
414 | (data->vid & 0x80)) { | |
9c516ef4 JD |
415 | /* 6-pin VID (VRM 10) */ |
416 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
417 | } else { | |
418 | /* 5-pin VID (VRM 9) */ | |
419 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
420 | } | |
421 | ||
422 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
423 | } |
424 | ||
425 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
426 | ||
1f44809a JD |
427 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
428 | char *buf) | |
1da177e4 | 429 | { |
90d6619a | 430 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
431 | return sprintf(buf, "%ld\n", (long) data->vrm); |
432 | } | |
433 | ||
1f44809a JD |
434 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
435 | const char *buf, size_t count) | |
1da177e4 | 436 | { |
8f74efe8 JD |
437 | struct lm85_data *data = dev_get_drvdata(dev); |
438 | data->vrm = simple_strtoul(buf, NULL, 10); | |
1da177e4 LT |
439 | return count; |
440 | } | |
441 | ||
442 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
443 | ||
1f44809a JD |
444 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
445 | *attr, char *buf) | |
1da177e4 LT |
446 | { |
447 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 448 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
449 | } |
450 | ||
451 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
452 | ||
bf76e9d3 JD |
453 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
454 | char *buf) | |
455 | { | |
456 | int nr = to_sensor_dev_attr(attr)->index; | |
457 | struct lm85_data *data = lm85_update_device(dev); | |
458 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
459 | } | |
460 | ||
461 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
462 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
463 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
464 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
465 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
466 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
467 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
468 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
469 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
470 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
471 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
472 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
473 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
474 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
475 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
476 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
477 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
478 | ||
1da177e4 LT |
479 | /* pwm */ |
480 | ||
b353a487 JD |
481 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
482 | char *buf) | |
1da177e4 | 483 | { |
b353a487 | 484 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 485 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 486 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 487 | } |
b353a487 JD |
488 | |
489 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
490 | const char *buf, size_t count) | |
1da177e4 | 491 | { |
b353a487 | 492 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
493 | struct i2c_client *client = to_i2c_client(dev); |
494 | struct lm85_data *data = i2c_get_clientdata(client); | |
495 | long val = simple_strtol(buf, NULL, 10); | |
496 | ||
9a61bf63 | 497 | mutex_lock(&data->update_lock); |
1da177e4 LT |
498 | data->pwm[nr] = PWM_TO_REG(val); |
499 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 500 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
501 | return count; |
502 | } | |
b353a487 JD |
503 | |
504 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
505 | *attr, char *buf) | |
1da177e4 | 506 | { |
b353a487 | 507 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 508 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 509 | int pwm_zone, enable; |
1da177e4 LT |
510 | |
511 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
512 | switch (pwm_zone) { |
513 | case -1: /* PWM is always at 100% */ | |
514 | enable = 0; | |
515 | break; | |
516 | case 0: /* PWM is always at 0% */ | |
517 | case -2: /* PWM responds to manual control */ | |
518 | enable = 1; | |
519 | break; | |
520 | default: /* PWM in automatic mode */ | |
521 | enable = 2; | |
522 | } | |
523 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
524 | } |
525 | ||
455f791e JD |
526 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
527 | *attr, const char *buf, size_t count) | |
528 | { | |
529 | int nr = to_sensor_dev_attr(attr)->index; | |
530 | struct i2c_client *client = to_i2c_client(dev); | |
531 | struct lm85_data *data = i2c_get_clientdata(client); | |
532 | long val = simple_strtol(buf, NULL, 10); | |
533 | u8 config; | |
534 | ||
535 | switch (val) { | |
536 | case 0: | |
537 | config = 3; | |
538 | break; | |
539 | case 1: | |
540 | config = 7; | |
541 | break; | |
542 | case 2: | |
543 | /* Here we have to choose arbitrarily one of the 5 possible | |
544 | configurations; I go for the safest */ | |
545 | config = 6; | |
546 | break; | |
547 | default: | |
548 | return -EINVAL; | |
549 | } | |
550 | ||
551 | mutex_lock(&data->update_lock); | |
552 | data->autofan[nr].config = lm85_read_value(client, | |
553 | LM85_REG_AFAN_CONFIG(nr)); | |
554 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
555 | | (config << 5); | |
556 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
557 | data->autofan[nr].config); | |
558 | mutex_unlock(&data->update_lock); | |
559 | return count; | |
560 | } | |
561 | ||
34e7dc6c JD |
562 | static ssize_t show_pwm_freq(struct device *dev, |
563 | struct device_attribute *attr, char *buf) | |
564 | { | |
565 | int nr = to_sensor_dev_attr(attr)->index; | |
566 | struct lm85_data *data = lm85_update_device(dev); | |
8a0795d9 JD |
567 | return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map, |
568 | data->pwm_freq[nr])); | |
34e7dc6c JD |
569 | } |
570 | ||
571 | static ssize_t set_pwm_freq(struct device *dev, | |
572 | struct device_attribute *attr, const char *buf, size_t count) | |
573 | { | |
574 | int nr = to_sensor_dev_attr(attr)->index; | |
575 | struct i2c_client *client = to_i2c_client(dev); | |
576 | struct lm85_data *data = i2c_get_clientdata(client); | |
577 | long val = simple_strtol(buf, NULL, 10); | |
578 | ||
579 | mutex_lock(&data->update_lock); | |
8a0795d9 | 580 | data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val); |
34e7dc6c JD |
581 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
582 | (data->zone[nr].range << 4) | |
583 | | data->pwm_freq[nr]); | |
584 | mutex_unlock(&data->update_lock); | |
585 | return count; | |
586 | } | |
587 | ||
1da177e4 | 588 | #define show_pwm_reg(offset) \ |
b353a487 JD |
589 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
590 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 591 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
592 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
593 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
594 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
595 | |
596 | show_pwm_reg(1); | |
597 | show_pwm_reg(2); | |
598 | show_pwm_reg(3); | |
599 | ||
600 | /* Voltages */ | |
601 | ||
b353a487 JD |
602 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
603 | char *buf) | |
1da177e4 | 604 | { |
b353a487 | 605 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 606 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
607 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
608 | data->in_ext[nr])); | |
1da177e4 | 609 | } |
b353a487 | 610 | |
1f44809a | 611 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 612 | char *buf) |
1da177e4 | 613 | { |
b353a487 | 614 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 615 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 616 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 617 | } |
b353a487 JD |
618 | |
619 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
620 | const char *buf, size_t count) | |
1da177e4 | 621 | { |
b353a487 | 622 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
623 | struct i2c_client *client = to_i2c_client(dev); |
624 | struct lm85_data *data = i2c_get_clientdata(client); | |
625 | long val = simple_strtol(buf, NULL, 10); | |
626 | ||
9a61bf63 | 627 | mutex_lock(&data->update_lock); |
1da177e4 LT |
628 | data->in_min[nr] = INS_TO_REG(nr, val); |
629 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 630 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
631 | return count; |
632 | } | |
b353a487 JD |
633 | |
634 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
635 | char *buf) | |
1da177e4 | 636 | { |
b353a487 | 637 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 638 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 639 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 640 | } |
b353a487 JD |
641 | |
642 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
643 | const char *buf, size_t count) | |
1da177e4 | 644 | { |
b353a487 | 645 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
646 | struct i2c_client *client = to_i2c_client(dev); |
647 | struct lm85_data *data = i2c_get_clientdata(client); | |
648 | long val = simple_strtol(buf, NULL, 10); | |
649 | ||
9a61bf63 | 650 | mutex_lock(&data->update_lock); |
1da177e4 LT |
651 | data->in_max[nr] = INS_TO_REG(nr, val); |
652 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 653 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
654 | return count; |
655 | } | |
b353a487 | 656 | |
1da177e4 | 657 | #define show_in_reg(offset) \ |
b353a487 JD |
658 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
659 | show_in, NULL, offset); \ | |
660 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
661 | show_in_min, set_in_min, offset); \ | |
662 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
663 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
664 | |
665 | show_in_reg(0); | |
666 | show_in_reg(1); | |
667 | show_in_reg(2); | |
668 | show_in_reg(3); | |
669 | show_in_reg(4); | |
6b9aad2d JD |
670 | show_in_reg(5); |
671 | show_in_reg(6); | |
672 | show_in_reg(7); | |
1da177e4 LT |
673 | |
674 | /* Temps */ | |
675 | ||
b353a487 JD |
676 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
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 JD |
681 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
682 | data->temp_ext[nr])); | |
1da177e4 | 683 | } |
b353a487 JD |
684 | |
685 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
686 | char *buf) | |
1da177e4 | 687 | { |
b353a487 | 688 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 689 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 690 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 691 | } |
b353a487 JD |
692 | |
693 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
694 | const char *buf, size_t count) | |
1da177e4 | 695 | { |
b353a487 | 696 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
697 | struct i2c_client *client = to_i2c_client(dev); |
698 | struct lm85_data *data = i2c_get_clientdata(client); | |
699 | long val = simple_strtol(buf, NULL, 10); | |
700 | ||
79b92f2b DW |
701 | if (IS_ADT7468_OFF64(data)) |
702 | val += 64; | |
703 | ||
9a61bf63 | 704 | mutex_lock(&data->update_lock); |
1da177e4 LT |
705 | data->temp_min[nr] = TEMP_TO_REG(val); |
706 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 707 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
708 | return count; |
709 | } | |
b353a487 JD |
710 | |
711 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
712 | char *buf) | |
1da177e4 | 713 | { |
b353a487 | 714 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 715 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 716 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 717 | } |
b353a487 JD |
718 | |
719 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
720 | const char *buf, size_t count) | |
1da177e4 | 721 | { |
b353a487 | 722 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
723 | struct i2c_client *client = to_i2c_client(dev); |
724 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 725 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 726 | |
79b92f2b DW |
727 | if (IS_ADT7468_OFF64(data)) |
728 | val += 64; | |
729 | ||
9a61bf63 | 730 | mutex_lock(&data->update_lock); |
1da177e4 LT |
731 | data->temp_max[nr] = TEMP_TO_REG(val); |
732 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 733 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
734 | return count; |
735 | } | |
b353a487 | 736 | |
1da177e4 | 737 | #define show_temp_reg(offset) \ |
b353a487 JD |
738 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
739 | show_temp, NULL, offset - 1); \ | |
740 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
741 | show_temp_min, set_temp_min, offset - 1); \ | |
742 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
743 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
744 | |
745 | show_temp_reg(1); | |
746 | show_temp_reg(2); | |
747 | show_temp_reg(3); | |
748 | ||
749 | ||
750 | /* Automatic PWM control */ | |
751 | ||
b353a487 JD |
752 | static ssize_t show_pwm_auto_channels(struct device *dev, |
753 | struct device_attribute *attr, char *buf) | |
1da177e4 | 754 | { |
b353a487 | 755 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 756 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 757 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 758 | } |
b353a487 JD |
759 | |
760 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
761 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 762 | { |
b353a487 | 763 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
764 | struct i2c_client *client = to_i2c_client(dev); |
765 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 766 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 767 | |
9a61bf63 | 768 | mutex_lock(&data->update_lock); |
1da177e4 | 769 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 770 | | ZONE_TO_REG(val); |
1da177e4 LT |
771 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
772 | data->autofan[nr].config); | |
9a61bf63 | 773 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
774 | return count; |
775 | } | |
b353a487 JD |
776 | |
777 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
778 | struct device_attribute *attr, char *buf) | |
1da177e4 | 779 | { |
b353a487 | 780 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 781 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 782 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 783 | } |
b353a487 JD |
784 | |
785 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
786 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 787 | { |
b353a487 | 788 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
789 | struct i2c_client *client = to_i2c_client(dev); |
790 | struct lm85_data *data = i2c_get_clientdata(client); | |
791 | long val = simple_strtol(buf, NULL, 10); | |
792 | ||
9a61bf63 | 793 | mutex_lock(&data->update_lock); |
1da177e4 LT |
794 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
795 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
796 | data->autofan[nr].min_pwm); | |
9a61bf63 | 797 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
798 | return count; |
799 | } | |
b353a487 JD |
800 | |
801 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
802 | struct device_attribute *attr, char *buf) | |
1da177e4 | 803 | { |
b353a487 | 804 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 805 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 806 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 807 | } |
b353a487 JD |
808 | |
809 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
810 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 811 | { |
b353a487 | 812 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
813 | struct i2c_client *client = to_i2c_client(dev); |
814 | struct lm85_data *data = i2c_get_clientdata(client); | |
815 | long val = simple_strtol(buf, NULL, 10); | |
7133e56f | 816 | u8 tmp; |
1da177e4 | 817 | |
9a61bf63 | 818 | mutex_lock(&data->update_lock); |
1da177e4 | 819 | data->autofan[nr].min_off = val; |
7133e56f JD |
820 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
821 | tmp &= ~(0x20 << nr); | |
822 | if (data->autofan[nr].min_off) | |
823 | tmp |= 0x20 << nr; | |
824 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 825 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
826 | return count; |
827 | } | |
b353a487 | 828 | |
1da177e4 | 829 | #define pwm_auto(offset) \ |
b353a487 JD |
830 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
831 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
832 | set_pwm_auto_channels, offset - 1); \ | |
833 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
834 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
835 | set_pwm_auto_pwm_min, offset - 1); \ | |
836 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
837 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 838 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 839 | |
1da177e4 LT |
840 | pwm_auto(1); |
841 | pwm_auto(2); | |
842 | pwm_auto(3); | |
843 | ||
844 | /* Temperature settings for automatic PWM control */ | |
845 | ||
b353a487 JD |
846 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
847 | struct device_attribute *attr, char *buf) | |
1da177e4 | 848 | { |
b353a487 | 849 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 850 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 851 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
852 | HYST_FROM_REG(data->zone[nr].hyst)); |
853 | } | |
b353a487 JD |
854 | |
855 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
856 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 857 | { |
b353a487 | 858 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
859 | struct i2c_client *client = to_i2c_client(dev); |
860 | struct lm85_data *data = i2c_get_clientdata(client); | |
861 | int min; | |
862 | long val = simple_strtol(buf, NULL, 10); | |
863 | ||
9a61bf63 | 864 | mutex_lock(&data->update_lock); |
1da177e4 LT |
865 | min = TEMP_FROM_REG(data->zone[nr].limit); |
866 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
867 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
1f44809a | 868 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
869 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
870 | (data->zone[0].hyst << 4) | |
1f44809a | 871 | | data->zone[1].hyst); |
1da177e4 LT |
872 | } else { |
873 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 874 | (data->zone[2].hyst << 4)); |
1da177e4 | 875 | } |
9a61bf63 | 876 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
877 | return count; |
878 | } | |
b353a487 JD |
879 | |
880 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
881 | struct device_attribute *attr, char *buf) | |
1da177e4 | 882 | { |
b353a487 | 883 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 884 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 885 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 886 | } |
b353a487 JD |
887 | |
888 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
889 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 890 | { |
b353a487 | 891 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
892 | struct i2c_client *client = to_i2c_client(dev); |
893 | struct lm85_data *data = i2c_get_clientdata(client); | |
894 | long val = simple_strtol(buf, NULL, 10); | |
895 | ||
9a61bf63 | 896 | mutex_lock(&data->update_lock); |
1da177e4 LT |
897 | data->zone[nr].limit = TEMP_TO_REG(val); |
898 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
899 | data->zone[nr].limit); | |
900 | ||
901 | /* Update temp_auto_max and temp_auto_range */ | |
902 | data->zone[nr].range = RANGE_TO_REG( | |
903 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
904 | TEMP_FROM_REG(data->zone[nr].limit)); | |
905 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
906 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 907 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 LT |
908 | |
909 | /* Update temp_auto_hyst and temp_auto_off */ | |
910 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
911 | data->zone[nr].limit) - TEMP_FROM_REG( | |
912 | data->zone[nr].off_desired)); | |
1f44809a | 913 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
914 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
915 | (data->zone[0].hyst << 4) | |
1f44809a | 916 | | data->zone[1].hyst); |
1da177e4 LT |
917 | } else { |
918 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 919 | (data->zone[2].hyst << 4)); |
1da177e4 | 920 | } |
9a61bf63 | 921 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
922 | return count; |
923 | } | |
b353a487 JD |
924 | |
925 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
926 | struct device_attribute *attr, char *buf) | |
1da177e4 | 927 | { |
b353a487 | 928 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 929 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 930 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
931 | RANGE_FROM_REG(data->zone[nr].range)); |
932 | } | |
b353a487 JD |
933 | |
934 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
935 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 936 | { |
b353a487 | 937 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
938 | struct i2c_client *client = to_i2c_client(dev); |
939 | struct lm85_data *data = i2c_get_clientdata(client); | |
940 | int min; | |
941 | long val = simple_strtol(buf, NULL, 10); | |
942 | ||
9a61bf63 | 943 | mutex_lock(&data->update_lock); |
1da177e4 LT |
944 | min = TEMP_FROM_REG(data->zone[nr].limit); |
945 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
946 | data->zone[nr].range = RANGE_TO_REG( | |
947 | val - min); | |
948 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
949 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 950 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 951 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
952 | return count; |
953 | } | |
b353a487 JD |
954 | |
955 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
956 | struct device_attribute *attr, char *buf) | |
1da177e4 | 957 | { |
b353a487 | 958 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 959 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 960 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 961 | } |
b353a487 JD |
962 | |
963 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 964 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 965 | { |
b353a487 | 966 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
967 | struct i2c_client *client = to_i2c_client(dev); |
968 | struct lm85_data *data = i2c_get_clientdata(client); | |
969 | long val = simple_strtol(buf, NULL, 10); | |
970 | ||
9a61bf63 | 971 | mutex_lock(&data->update_lock); |
1da177e4 LT |
972 | data->zone[nr].critical = TEMP_TO_REG(val); |
973 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
974 | data->zone[nr].critical); | |
9a61bf63 | 975 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
976 | return count; |
977 | } | |
b353a487 | 978 | |
1da177e4 | 979 | #define temp_auto(offset) \ |
b353a487 JD |
980 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
981 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
982 | set_temp_auto_temp_off, offset - 1); \ | |
983 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
984 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
985 | set_temp_auto_temp_min, offset - 1); \ | |
986 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
987 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
988 | set_temp_auto_temp_max, offset - 1); \ | |
989 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
990 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
991 | set_temp_auto_temp_crit, offset - 1); | |
992 | ||
1da177e4 LT |
993 | temp_auto(1); |
994 | temp_auto(2); | |
995 | temp_auto(3); | |
996 | ||
0501a381 | 997 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
998 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
999 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1000 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1001 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1002 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1003 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1004 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1005 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
1006 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1007 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1008 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1009 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
1010 | |
1011 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1012 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1013 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1014 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1015 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1016 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
34e7dc6c JD |
1017 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1018 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1019 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
b353a487 JD |
1020 | |
1021 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1022 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1023 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1024 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1025 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1026 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1027 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1028 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1029 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1030 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1031 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1032 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1033 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1034 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1035 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1036 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1037 | |
1038 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1039 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1040 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1041 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1042 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1043 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1044 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1045 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1046 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1047 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1048 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1049 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1050 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1051 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1052 | |
1053 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1054 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1055 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1056 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1057 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1058 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1059 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1060 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1061 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
b353a487 JD |
1062 | |
1063 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1064 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1065 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1066 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1067 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1068 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1069 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1070 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1071 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1072 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1073 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1074 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1075 | ||
0501a381 MH |
1076 | &dev_attr_vrm.attr, |
1077 | &dev_attr_cpu0_vid.attr, | |
1078 | &dev_attr_alarms.attr, | |
0501a381 MH |
1079 | NULL |
1080 | }; | |
1081 | ||
1082 | static const struct attribute_group lm85_group = { | |
1083 | .attrs = lm85_attributes, | |
1084 | }; | |
1085 | ||
6b9aad2d | 1086 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1087 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1088 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1089 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1090 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1091 | NULL |
1092 | }; | |
1093 | ||
6b9aad2d JD |
1094 | static const struct attribute_group lm85_group_in4 = { |
1095 | .attrs = lm85_attributes_in4, | |
1096 | }; | |
1097 | ||
1098 | static struct attribute *lm85_attributes_in567[] = { | |
1099 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1100 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1101 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1102 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1103 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1104 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1105 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1106 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1107 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1108 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1109 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1110 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1111 | NULL |
1112 | }; | |
1113 | ||
1114 | static const struct attribute_group lm85_group_in567 = { | |
1115 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1116 | }; |
1117 | ||
5f447594 JD |
1118 | static void lm85_init_client(struct i2c_client *client) |
1119 | { | |
1120 | int value; | |
1121 | ||
1122 | /* Start monitoring if needed */ | |
1123 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1124 | if (!(value & 0x01)) { | |
1125 | dev_info(&client->dev, "Starting monitoring\n"); | |
1126 | lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); | |
1127 | } | |
1128 | ||
1129 | /* Warn about unusual configuration bits */ | |
1130 | if (value & 0x02) | |
1131 | dev_warn(&client->dev, "Device configuration is locked\n"); | |
1132 | if (!(value & 0x04)) | |
1133 | dev_warn(&client->dev, "Device is not ready\n"); | |
1134 | } | |
1135 | ||
67712d01 JD |
1136 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1137 | static int lm85_detect(struct i2c_client *client, int kind, | |
1138 | struct i2c_board_info *info) | |
1da177e4 | 1139 | { |
67712d01 JD |
1140 | struct i2c_adapter *adapter = client->adapter; |
1141 | int address = client->addr; | |
e89e22b2 | 1142 | const char *type_name; |
1da177e4 | 1143 | |
e89e22b2 | 1144 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1145 | /* We need to be able to do byte I/O */ |
67712d01 | 1146 | return -ENODEV; |
1f44809a | 1147 | } |
1da177e4 | 1148 | |
69fc1feb JD |
1149 | /* If auto-detecting, determine the chip type */ |
1150 | if (kind < 0) { | |
1151 | int company = lm85_read_value(client, LM85_REG_COMPANY); | |
1152 | int verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1153 | ||
1154 | dev_dbg(&adapter->dev, "Detecting device at 0x%02x with " | |
1155 | "COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1156 | address, company, verstep); | |
1157 | ||
1158 | /* All supported chips have the version in common */ | |
c15ade65 DW |
1159 | if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC && |
1160 | (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) { | |
69fc1feb JD |
1161 | dev_dbg(&adapter->dev, "Autodetection failed: " |
1162 | "unsupported version\n"); | |
67712d01 | 1163 | return -ENODEV; |
69fc1feb JD |
1164 | } |
1165 | kind = any_chip; | |
1166 | ||
1167 | /* Now, refine the detection */ | |
1168 | if (company == LM85_COMPANY_NATIONAL) { | |
1169 | switch (verstep) { | |
1170 | case LM85_VERSTEP_LM85C: | |
1171 | kind = lm85c; | |
1172 | break; | |
1173 | case LM85_VERSTEP_LM85B: | |
1174 | kind = lm85b; | |
1175 | break; | |
1176 | } | |
1177 | } else if (company == LM85_COMPANY_ANALOG_DEV) { | |
1178 | switch (verstep) { | |
1179 | case LM85_VERSTEP_ADM1027: | |
1180 | kind = adm1027; | |
1181 | break; | |
1182 | case LM85_VERSTEP_ADT7463: | |
1183 | case LM85_VERSTEP_ADT7463C: | |
1184 | kind = adt7463; | |
1185 | break; | |
79b92f2b DW |
1186 | case LM85_VERSTEP_ADT7468_1: |
1187 | case LM85_VERSTEP_ADT7468_2: | |
1188 | kind = adt7468; | |
1189 | break; | |
1da177e4 | 1190 | } |
69fc1feb JD |
1191 | } else if (company == LM85_COMPANY_SMSC) { |
1192 | switch (verstep) { | |
1193 | case LM85_VERSTEP_EMC6D100_A0: | |
1194 | case LM85_VERSTEP_EMC6D100_A1: | |
1195 | /* Note: we can't tell a '100 from a '101 */ | |
1196 | kind = emc6d100; | |
1197 | break; | |
1198 | case LM85_VERSTEP_EMC6D102: | |
1199 | kind = emc6d102; | |
1200 | break; | |
1201 | } | |
1202 | } else { | |
1203 | dev_dbg(&adapter->dev, "Autodetection failed: " | |
1204 | "unknown vendor\n"); | |
67712d01 | 1205 | return -ENODEV; |
1da177e4 LT |
1206 | } |
1207 | } | |
1208 | ||
e89e22b2 JD |
1209 | switch (kind) { |
1210 | case lm85b: | |
1da177e4 | 1211 | type_name = "lm85b"; |
e89e22b2 JD |
1212 | break; |
1213 | case lm85c: | |
1da177e4 | 1214 | type_name = "lm85c"; |
e89e22b2 JD |
1215 | break; |
1216 | case adm1027: | |
1da177e4 | 1217 | type_name = "adm1027"; |
e89e22b2 JD |
1218 | break; |
1219 | case adt7463: | |
1da177e4 | 1220 | type_name = "adt7463"; |
e89e22b2 | 1221 | break; |
79b92f2b DW |
1222 | case adt7468: |
1223 | type_name = "adt7468"; | |
1224 | break; | |
e89e22b2 | 1225 | case emc6d100: |
1da177e4 | 1226 | type_name = "emc6d100"; |
e89e22b2 JD |
1227 | break; |
1228 | case emc6d102: | |
1da177e4 | 1229 | type_name = "emc6d102"; |
e89e22b2 JD |
1230 | break; |
1231 | default: | |
1232 | type_name = "lm85"; | |
1233 | } | |
67712d01 JD |
1234 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1235 | ||
1236 | return 0; | |
1237 | } | |
1da177e4 | 1238 | |
67712d01 JD |
1239 | static int lm85_probe(struct i2c_client *client, |
1240 | const struct i2c_device_id *id) | |
1241 | { | |
1242 | struct lm85_data *data; | |
1243 | int err; | |
1244 | ||
1245 | data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL); | |
1246 | if (!data) | |
1247 | return -ENOMEM; | |
1248 | ||
1249 | i2c_set_clientdata(client, data); | |
1250 | data->type = id->driver_data; | |
9a61bf63 | 1251 | mutex_init(&data->update_lock); |
1da177e4 | 1252 | |
67712d01 JD |
1253 | /* Fill in the chip specific driver values */ |
1254 | switch (data->type) { | |
1255 | case adm1027: | |
1256 | case adt7463: | |
1257 | case emc6d100: | |
1258 | case emc6d102: | |
1259 | data->freq_map = adm1027_freq_map; | |
1260 | break; | |
1261 | default: | |
1262 | data->freq_map = lm85_freq_map; | |
1263 | } | |
1da177e4 LT |
1264 | |
1265 | /* Set the VRM version */ | |
303760b4 | 1266 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1267 | |
1268 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1269 | lm85_init_client(client); |
1da177e4 LT |
1270 | |
1271 | /* Register sysfs hooks */ | |
e89e22b2 JD |
1272 | err = sysfs_create_group(&client->dev.kobj, &lm85_group); |
1273 | if (err) | |
f908037a | 1274 | goto err_kfree; |
1da177e4 | 1275 | |
79b92f2b | 1276 | /* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used |
9c516ef4 | 1277 | as a sixth digital VID input rather than an analog input. */ |
e89e22b2 | 1278 | data->vid = lm85_read_value(client, LM85_REG_VID); |
79b92f2b DW |
1279 | if (!((data->type == adt7463 || data->type == adt7468) && |
1280 | (data->vid & 0x80))) | |
e89e22b2 | 1281 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1282 | &lm85_group_in4))) |
f908037a | 1283 | goto err_remove_files; |
6b9aad2d JD |
1284 | |
1285 | /* The EMC6D100 has 3 additional voltage inputs */ | |
67712d01 | 1286 | if (data->type == emc6d100) |
e89e22b2 | 1287 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1288 | &lm85_group_in567))) |
f908037a | 1289 | goto err_remove_files; |
0501a381 | 1290 | |
e89e22b2 | 1291 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
1292 | if (IS_ERR(data->hwmon_dev)) { |
1293 | err = PTR_ERR(data->hwmon_dev); | |
f908037a | 1294 | goto err_remove_files; |
9c516ef4 JD |
1295 | } |
1296 | ||
1da177e4 LT |
1297 | return 0; |
1298 | ||
1299 | /* Error out and cleanup code */ | |
f908037a | 1300 | err_remove_files: |
e89e22b2 JD |
1301 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
1302 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); | |
67712d01 | 1303 | if (data->type == emc6d100) |
e89e22b2 | 1304 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); |
f908037a | 1305 | err_kfree: |
1da177e4 | 1306 | kfree(data); |
1da177e4 LT |
1307 | return err; |
1308 | } | |
1309 | ||
67712d01 | 1310 | static int lm85_remove(struct i2c_client *client) |
1da177e4 | 1311 | { |
943b0830 | 1312 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1313 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1314 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1315 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1316 | if (data->type == emc6d100) | |
1317 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
943b0830 | 1318 | kfree(data); |
1da177e4 LT |
1319 | return 0; |
1320 | } | |
1321 | ||
1322 | ||
d8d20615 | 1323 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1324 | { |
1325 | int res; | |
1326 | ||
1327 | /* What size location is it? */ | |
1f44809a JD |
1328 | switch (reg) { |
1329 | case LM85_REG_FAN(0): /* Read WORD data */ | |
1330 | case LM85_REG_FAN(1): | |
1331 | case LM85_REG_FAN(2): | |
1332 | case LM85_REG_FAN(3): | |
1333 | case LM85_REG_FAN_MIN(0): | |
1334 | case LM85_REG_FAN_MIN(1): | |
1335 | case LM85_REG_FAN_MIN(2): | |
1336 | case LM85_REG_FAN_MIN(3): | |
1337 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
1338 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
1339 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
1340 | break; | |
1da177e4 LT |
1341 | default: /* Read BYTE data */ |
1342 | res = i2c_smbus_read_byte_data(client, reg); | |
1f44809a | 1343 | break; |
1da177e4 LT |
1344 | } |
1345 | ||
1f44809a | 1346 | return res; |
1da177e4 LT |
1347 | } |
1348 | ||
e89e22b2 | 1349 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 | 1350 | { |
1f44809a JD |
1351 | switch (reg) { |
1352 | case LM85_REG_FAN(0): /* Write WORD data */ | |
1353 | case LM85_REG_FAN(1): | |
1354 | case LM85_REG_FAN(2): | |
1355 | case LM85_REG_FAN(3): | |
1356 | case LM85_REG_FAN_MIN(0): | |
1357 | case LM85_REG_FAN_MIN(1): | |
1358 | case LM85_REG_FAN_MIN(2): | |
1359 | case LM85_REG_FAN_MIN(3): | |
1da177e4 | 1360 | /* NOTE: ALARM is read only, so not included here */ |
e89e22b2 JD |
1361 | i2c_smbus_write_byte_data(client, reg, value & 0xff); |
1362 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
1f44809a | 1363 | break; |
1da177e4 | 1364 | default: /* Write BYTE data */ |
e89e22b2 | 1365 | i2c_smbus_write_byte_data(client, reg, value); |
1f44809a | 1366 | break; |
1da177e4 | 1367 | } |
1da177e4 LT |
1368 | } |
1369 | ||
1da177e4 LT |
1370 | static struct lm85_data *lm85_update_device(struct device *dev) |
1371 | { | |
1372 | struct i2c_client *client = to_i2c_client(dev); | |
1373 | struct lm85_data *data = i2c_get_clientdata(client); | |
1374 | int i; | |
1375 | ||
9a61bf63 | 1376 | mutex_lock(&data->update_lock); |
1da177e4 | 1377 | |
1f44809a JD |
1378 | if (!data->valid || |
1379 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
1da177e4 LT |
1380 | /* Things that change quickly */ |
1381 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1f44809a | 1382 | |
1da177e4 LT |
1383 | /* Have to read extended bits first to "freeze" the |
1384 | * more significant bits that are read later. | |
5a4d3ef3 JD |
1385 | * There are 2 additional resolution bits per channel and we |
1386 | * have room for 4, so we shift them to the left. | |
1da177e4 | 1387 | */ |
79b92f2b DW |
1388 | if (data->type == adm1027 || data->type == adt7463 || |
1389 | data->type == adt7468) { | |
1da177e4 LT |
1390 | int ext1 = lm85_read_value(client, |
1391 | ADM1027_REG_EXTEND_ADC1); | |
1392 | int ext2 = lm85_read_value(client, | |
1393 | ADM1027_REG_EXTEND_ADC2); | |
1394 | int val = (ext1 << 8) + ext2; | |
1395 | ||
1f44809a JD |
1396 | for (i = 0; i <= 4; i++) |
1397 | data->in_ext[i] = | |
1398 | ((val >> (i * 2)) & 0x03) << 2; | |
1da177e4 | 1399 | |
1f44809a JD |
1400 | for (i = 0; i <= 2; i++) |
1401 | data->temp_ext[i] = | |
1402 | (val >> ((i + 4) * 2)) & 0x0c; | |
1da177e4 LT |
1403 | } |
1404 | ||
9c516ef4 JD |
1405 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1406 | ||
1407 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1408 | data->in[i] = |
1409 | lm85_read_value(client, LM85_REG_IN(i)); | |
e89e22b2 JD |
1410 | data->fan[i] = |
1411 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1da177e4 LT |
1412 | } |
1413 | ||
79b92f2b DW |
1414 | if (!((data->type == adt7463 || data->type == adt7468) && |
1415 | (data->vid & 0x80))) { | |
9c516ef4 JD |
1416 | data->in[4] = lm85_read_value(client, |
1417 | LM85_REG_IN(4)); | |
1418 | } | |
1419 | ||
79b92f2b DW |
1420 | if (data->type == adt7468) |
1421 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); | |
1422 | ||
1da177e4 LT |
1423 | for (i = 0; i <= 2; ++i) { |
1424 | data->temp[i] = | |
1425 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1da177e4 LT |
1426 | data->pwm[i] = |
1427 | lm85_read_value(client, LM85_REG_PWM(i)); | |
79b92f2b DW |
1428 | |
1429 | if (IS_ADT7468_OFF64(data)) | |
1430 | data->temp[i] -= 64; | |
1da177e4 LT |
1431 | } |
1432 | ||
1433 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1434 | ||
dd1ac538 | 1435 | if (data->type == emc6d100) { |
1da177e4 LT |
1436 | /* Three more voltage sensors */ |
1437 | for (i = 5; i <= 7; ++i) { | |
1f44809a JD |
1438 | data->in[i] = lm85_read_value(client, |
1439 | EMC6D100_REG_IN(i)); | |
1da177e4 LT |
1440 | } |
1441 | /* More alarm bits */ | |
1f44809a JD |
1442 | data->alarms |= lm85_read_value(client, |
1443 | EMC6D100_REG_ALARM3) << 16; | |
1444 | } else if (data->type == emc6d102) { | |
1da177e4 LT |
1445 | /* Have to read LSB bits after the MSB ones because |
1446 | the reading of the MSB bits has frozen the | |
1447 | LSBs (backward from the ADM1027). | |
1448 | */ | |
1449 | int ext1 = lm85_read_value(client, | |
1450 | EMC6D102_REG_EXTEND_ADC1); | |
1451 | int ext2 = lm85_read_value(client, | |
1452 | EMC6D102_REG_EXTEND_ADC2); | |
1453 | int ext3 = lm85_read_value(client, | |
1454 | EMC6D102_REG_EXTEND_ADC3); | |
1455 | int ext4 = lm85_read_value(client, | |
1456 | EMC6D102_REG_EXTEND_ADC4); | |
1457 | data->in_ext[0] = ext3 & 0x0f; | |
1458 | data->in_ext[1] = ext4 & 0x0f; | |
e89e22b2 JD |
1459 | data->in_ext[2] = ext4 >> 4; |
1460 | data->in_ext[3] = ext3 >> 4; | |
1461 | data->in_ext[4] = ext2 >> 4; | |
1da177e4 LT |
1462 | |
1463 | data->temp_ext[0] = ext1 & 0x0f; | |
1464 | data->temp_ext[1] = ext2 & 0x0f; | |
e89e22b2 | 1465 | data->temp_ext[2] = ext1 >> 4; |
1da177e4 LT |
1466 | } |
1467 | ||
1f44809a JD |
1468 | data->last_reading = jiffies; |
1469 | } /* last_reading */ | |
1da177e4 | 1470 | |
1f44809a JD |
1471 | if (!data->valid || |
1472 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
1da177e4 LT |
1473 | /* Things that don't change often */ |
1474 | dev_dbg(&client->dev, "Reading config values\n"); | |
1475 | ||
9c516ef4 | 1476 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1477 | data->in_min[i] = |
1478 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1479 | data->in_max[i] = | |
1480 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
e89e22b2 JD |
1481 | data->fan_min[i] = |
1482 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1da177e4 LT |
1483 | } |
1484 | ||
79b92f2b DW |
1485 | if (!((data->type == adt7463 || data->type == adt7468) && |
1486 | (data->vid & 0x80))) { | |
9c516ef4 JD |
1487 | data->in_min[4] = lm85_read_value(client, |
1488 | LM85_REG_IN_MIN(4)); | |
1489 | data->in_max[4] = lm85_read_value(client, | |
1490 | LM85_REG_IN_MAX(4)); | |
1491 | } | |
1492 | ||
1f44809a | 1493 | if (data->type == emc6d100) { |
1da177e4 | 1494 | for (i = 5; i <= 7; ++i) { |
1f44809a JD |
1495 | data->in_min[i] = lm85_read_value(client, |
1496 | EMC6D100_REG_IN_MIN(i)); | |
1497 | data->in_max[i] = lm85_read_value(client, | |
1498 | EMC6D100_REG_IN_MAX(i)); | |
1da177e4 LT |
1499 | } |
1500 | } | |
1501 | ||
1da177e4 | 1502 | for (i = 0; i <= 2; ++i) { |
e89e22b2 JD |
1503 | int val; |
1504 | ||
1da177e4 LT |
1505 | data->temp_min[i] = |
1506 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1507 | data->temp_max[i] = | |
1508 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1da177e4 | 1509 | |
1da177e4 LT |
1510 | data->autofan[i].config = |
1511 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1512 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
34e7dc6c | 1513 | data->pwm_freq[i] = val & 0x07; |
e89e22b2 | 1514 | data->zone[i].range = val >> 4; |
1da177e4 LT |
1515 | data->autofan[i].min_pwm = |
1516 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1517 | data->zone[i].limit = | |
1518 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1519 | data->zone[i].critical = | |
1520 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
79b92f2b DW |
1521 | |
1522 | if (IS_ADT7468_OFF64(data)) { | |
1523 | data->temp_min[i] -= 64; | |
1524 | data->temp_max[i] -= 64; | |
1525 | data->zone[i].limit -= 64; | |
1526 | data->zone[i].critical -= 64; | |
1527 | } | |
1da177e4 LT |
1528 | } |
1529 | ||
1530 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1f44809a JD |
1531 | data->autofan[0].min_off = (i & 0x20) != 0; |
1532 | data->autofan[1].min_off = (i & 0x40) != 0; | |
1533 | data->autofan[2].min_off = (i & 0x80) != 0; | |
1da177e4 LT |
1534 | |
1535 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
e89e22b2 | 1536 | data->zone[0].hyst = i >> 4; |
1f44809a | 1537 | data->zone[1].hyst = i & 0x0f; |
1da177e4 LT |
1538 | |
1539 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
e89e22b2 | 1540 | data->zone[2].hyst = i >> 4; |
1da177e4 | 1541 | |
1da177e4 | 1542 | data->last_config = jiffies; |
1f44809a | 1543 | } /* last_config */ |
1da177e4 LT |
1544 | |
1545 | data->valid = 1; | |
1546 | ||
9a61bf63 | 1547 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1548 | |
1549 | return data; | |
1550 | } | |
1551 | ||
1552 | ||
1553 | static int __init sm_lm85_init(void) | |
1554 | { | |
1555 | return i2c_add_driver(&lm85_driver); | |
1556 | } | |
1557 | ||
1f44809a | 1558 | static void __exit sm_lm85_exit(void) |
1da177e4 LT |
1559 | { |
1560 | i2c_del_driver(&lm85_driver); | |
1561 | } | |
1562 | ||
1da177e4 | 1563 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1564 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1565 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1566 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 LT |
1567 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |
1568 | ||
1569 | module_init(sm_lm85_init); | |
1570 | module_exit(sm_lm85_exit); |