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> | |
d42a2eb5 | 8 | Copyright (C) 2007--2009 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 | 40 | |
e5e9f44c JD |
41 | enum chips { |
42 | any_chip, lm85b, lm85c, | |
43 | adm1027, adt7463, adt7468, | |
44 | emc6d100, emc6d102 | |
45 | }; | |
1da177e4 LT |
46 | |
47 | /* The LM85 registers */ | |
48 | ||
49 | #define LM85_REG_IN(nr) (0x20 + (nr)) | |
50 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
51 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
52 | ||
53 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) | |
54 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
55 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
56 | ||
57 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
1f44809a JD |
58 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
59 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 LT |
60 | |
61 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
62 | ||
1da177e4 LT |
63 | #define LM85_REG_COMPANY 0x3e |
64 | #define LM85_REG_VERSTEP 0x3f | |
79b92f2b DW |
65 | |
66 | #define ADT7468_REG_CFG5 0x7c | |
67 | #define ADT7468_OFF64 0x01 | |
68 | #define IS_ADT7468_OFF64(data) \ | |
69 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) | |
70 | ||
1da177e4 | 71 | /* These are the recognized values for the above regs */ |
1da177e4 LT |
72 | #define LM85_COMPANY_NATIONAL 0x01 |
73 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
1f44809a | 74 | #define LM85_COMPANY_SMSC 0x5c |
1da177e4 LT |
75 | #define LM85_VERSTEP_VMASK 0xf0 |
76 | #define LM85_VERSTEP_GENERIC 0x60 | |
c15ade65 | 77 | #define LM85_VERSTEP_GENERIC2 0x70 |
1da177e4 LT |
78 | #define LM85_VERSTEP_LM85C 0x60 |
79 | #define LM85_VERSTEP_LM85B 0x62 | |
5cfaf338 JD |
80 | #define LM85_VERSTEP_LM96000_1 0x68 |
81 | #define LM85_VERSTEP_LM96000_2 0x69 | |
1da177e4 LT |
82 | #define LM85_VERSTEP_ADM1027 0x60 |
83 | #define LM85_VERSTEP_ADT7463 0x62 | |
84 | #define LM85_VERSTEP_ADT7463C 0x6A | |
79b92f2b DW |
85 | #define LM85_VERSTEP_ADT7468_1 0x71 |
86 | #define LM85_VERSTEP_ADT7468_2 0x72 | |
1da177e4 LT |
87 | #define LM85_VERSTEP_EMC6D100_A0 0x60 |
88 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
89 | #define LM85_VERSTEP_EMC6D102 0x65 | |
90 | ||
91 | #define LM85_REG_CONFIG 0x40 | |
92 | ||
93 | #define LM85_REG_ALARM1 0x41 | |
94 | #define LM85_REG_ALARM2 0x42 | |
95 | ||
96 | #define LM85_REG_VID 0x43 | |
97 | ||
98 | /* Automated FAN control */ | |
99 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
100 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
101 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
1da177e4 LT |
102 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) |
103 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
104 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
105 | #define LM85_REG_AFAN_HYST1 0x6d | |
106 | #define LM85_REG_AFAN_HYST2 0x6e | |
107 | ||
1da177e4 LT |
108 | #define ADM1027_REG_EXTEND_ADC1 0x76 |
109 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
110 | |
111 | #define EMC6D100_REG_ALARM3 0x7d | |
112 | /* IN5, IN6 and IN7 */ | |
1f44809a JD |
113 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
114 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
115 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
1da177e4 LT |
116 | #define EMC6D102_REG_EXTEND_ADC1 0x85 |
117 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
118 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
119 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
120 | ||
1da177e4 | 121 | |
1f44809a | 122 | /* Conversions. Rounding and limit checking is only done on the TO_REG |
1da177e4 LT |
123 | variants. Note that you should be a bit careful with which arguments |
124 | these macros are called: arguments may be evaluated more than once. | |
125 | */ | |
126 | ||
127 | /* IN are scaled acording to built-in resistors */ | |
e89e22b2 | 128 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
129 | 2500, 2250, 3300, 5000, 12000, |
130 | 3300, 1500, 1800 /*EMC6D100*/ | |
131 | }; | |
132 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 133 | |
1f44809a JD |
134 | #define INS_TO_REG(n, val) \ |
135 | SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255) | |
1da177e4 | 136 | |
1f44809a | 137 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 138 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 139 | |
1f44809a | 140 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
141 | |
142 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
143 | static inline u16 FAN_TO_REG(unsigned long val) |
144 | { | |
145 | if (!val) | |
146 | return 0xffff; | |
147 | return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); | |
148 | } | |
1f44809a JD |
149 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
150 | 5400000 / (val)) | |
1da177e4 LT |
151 | |
152 | /* Temperature is reported in .001 degC increments */ | |
153 | #define TEMP_TO_REG(val) \ | |
1f44809a JD |
154 | SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127) |
155 | #define TEMPEXT_FROM_REG(val, ext) \ | |
5a4d3ef3 JD |
156 | SCALE(((val) << 4) + (ext), 16, 1000) |
157 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 158 | |
1f44809a | 159 | #define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255) |
1da177e4 LT |
160 | #define PWM_FROM_REG(val) (val) |
161 | ||
162 | ||
163 | /* ZONEs have the following parameters: | |
164 | * Limit (low) temp, 1. degC | |
165 | * Hysteresis (below limit), 1. degC (0-15) | |
166 | * Range of speed control, .1 degC (2-80) | |
167 | * Critical (high) temp, 1. degC | |
168 | * | |
169 | * FAN PWMs have the following parameters: | |
170 | * Reference Zone, 1, 2, 3, etc. | |
171 | * Spinup time, .05 sec | |
172 | * PWM value at limit/low temp, 1 count | |
173 | * PWM Frequency, 1. Hz | |
174 | * PWM is Min or OFF below limit, flag | |
175 | * Invert PWM output, flag | |
176 | * | |
177 | * Some chips filter the temp, others the fan. | |
178 | * Filter constant (or disabled) .1 seconds | |
179 | */ | |
180 | ||
181 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 182 | static const int lm85_range_map[] = { |
1f44809a JD |
183 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
184 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
185 | }; | |
186 | ||
187 | static int RANGE_TO_REG(int range) | |
1da177e4 LT |
188 | { |
189 | int i; | |
190 | ||
d38b1497 | 191 | /* Find the closest match */ |
1b92adad JD |
192 | for (i = 0; i < 15; ++i) { |
193 | if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2) | |
194 | break; | |
1da177e4 | 195 | } |
d38b1497 | 196 | |
1b92adad | 197 | return i; |
1da177e4 | 198 | } |
1f44809a | 199 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 200 | |
1da177e4 | 201 | /* These are the PWM frequency encodings */ |
34e7dc6c | 202 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
203 | 10, 15, 23, 30, 38, 47, 61, 94 |
204 | }; | |
205 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
206 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a JD |
207 | }; |
208 | ||
8a0795d9 | 209 | static int FREQ_TO_REG(const int *map, int freq) |
1da177e4 LT |
210 | { |
211 | int i; | |
212 | ||
86010c98 | 213 | /* Find the closest match */ |
1f44809a | 214 | for (i = 0; i < 7; ++i) |
8a0795d9 | 215 | if (freq <= (map[i] + map[i + 1]) / 2) |
1f44809a | 216 | break; |
e89e22b2 | 217 | return i; |
1da177e4 | 218 | } |
8a0795d9 JD |
219 | |
220 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
221 | { | |
222 | return map[reg & 0x07]; | |
223 | } | |
1da177e4 LT |
224 | |
225 | /* Since we can't use strings, I'm abusing these numbers | |
226 | * to stand in for the following meanings: | |
227 | * 1 -- PWM responds to Zone 1 | |
228 | * 2 -- PWM responds to Zone 2 | |
229 | * 3 -- PWM responds to Zone 3 | |
230 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
231 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
232 | * 0 -- PWM is always at 0% (ie, off) | |
233 | * -1 -- PWM is always at 100% | |
234 | * -2 -- PWM responds to manual control | |
235 | */ | |
236 | ||
e89e22b2 JD |
237 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
238 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 239 | |
1f44809a | 240 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
241 | { |
242 | int i; | |
243 | ||
1f44809a JD |
244 | for (i = 0; i <= 7; ++i) |
245 | if (zone == lm85_zone_map[i]) | |
246 | break; | |
247 | if (i > 7) /* Not found. */ | |
1da177e4 | 248 | i = 3; /* Always 100% */ |
e89e22b2 | 249 | return i << 5; |
1da177e4 LT |
250 | } |
251 | ||
1f44809a JD |
252 | #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15) |
253 | #define HYST_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 254 | |
1da177e4 LT |
255 | /* Chip sampling rates |
256 | * | |
257 | * Some sensors are not updated more frequently than once per second | |
258 | * so it doesn't make sense to read them more often than that. | |
259 | * We cache the results and return the saved data if the driver | |
260 | * is called again before a second has elapsed. | |
261 | * | |
262 | * Also, there is significant configuration data for this chip | |
263 | * given the automatic PWM fan control that is possible. There | |
264 | * are about 47 bytes of config data to only 22 bytes of actual | |
265 | * readings. So, we keep the config data up to date in the cache | |
266 | * when it is written and only sample it once every 1 *minute* | |
267 | */ | |
268 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
269 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
270 | ||
1da177e4 LT |
271 | /* LM85 can automatically adjust fan speeds based on temperature |
272 | * This structure encapsulates an entire Zone config. There are | |
273 | * three zones (one for each temperature input) on the lm85 | |
274 | */ | |
275 | struct lm85_zone { | |
276 | s8 limit; /* Low temp limit */ | |
277 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
278 | u8 range; /* Temp range, encoded */ | |
279 | s8 critical; /* "All fans ON" temp limit */ | |
1f44809a | 280 | u8 off_desired; /* Actual "off" temperature specified. Preserved |
1da177e4 LT |
281 | * to prevent "drift" as other autofan control |
282 | * values change. | |
283 | */ | |
1f44809a | 284 | u8 max_desired; /* Actual "max" temperature specified. Preserved |
1da177e4 LT |
285 | * to prevent "drift" as other autofan control |
286 | * values change. | |
287 | */ | |
288 | }; | |
289 | ||
290 | struct lm85_autofan { | |
291 | u8 config; /* Register value */ | |
1da177e4 LT |
292 | u8 min_pwm; /* Minimum PWM value, encoded */ |
293 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
294 | }; | |
295 | ||
ed6bafbf JD |
296 | /* For each registered chip, we need to keep some data in memory. |
297 | The structure is dynamically allocated. */ | |
1da177e4 | 298 | struct lm85_data { |
1beeffe4 | 299 | struct device *hwmon_dev; |
8a0795d9 | 300 | const int *freq_map; |
1da177e4 LT |
301 | enum chips type; |
302 | ||
9a61bf63 | 303 | struct mutex update_lock; |
1da177e4 LT |
304 | int valid; /* !=0 if following fields are valid */ |
305 | unsigned long last_reading; /* In jiffies */ | |
306 | unsigned long last_config; /* In jiffies */ | |
307 | ||
308 | u8 in[8]; /* Register value */ | |
309 | u8 in_max[8]; /* Register value */ | |
310 | u8 in_min[8]; /* Register value */ | |
311 | s8 temp[3]; /* Register value */ | |
312 | s8 temp_min[3]; /* Register value */ | |
313 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
314 | u16 fan[4]; /* Register value */ |
315 | u16 fan_min[4]; /* Register value */ | |
316 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 317 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
318 | u8 temp_ext[3]; /* Decoded values */ |
319 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
320 | u8 vid; /* Register value */ |
321 | u8 vrm; /* VRM version */ | |
1da177e4 | 322 | u32 alarms; /* Register encoding, combined */ |
79b92f2b | 323 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
1da177e4 LT |
324 | struct lm85_autofan autofan[3]; |
325 | struct lm85_zone zone[3]; | |
326 | }; | |
327 | ||
310ec792 | 328 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info); |
67712d01 JD |
329 | static int lm85_probe(struct i2c_client *client, |
330 | const struct i2c_device_id *id); | |
331 | static int lm85_remove(struct i2c_client *client); | |
1da177e4 | 332 | |
f6c27fc1 | 333 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
e89e22b2 | 334 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value); |
1da177e4 | 335 | static struct lm85_data *lm85_update_device(struct device *dev); |
1da177e4 LT |
336 | |
337 | ||
67712d01 JD |
338 | static const struct i2c_device_id lm85_id[] = { |
339 | { "adm1027", adm1027 }, | |
340 | { "adt7463", adt7463 }, | |
c15ade65 | 341 | { "adt7468", adt7468 }, |
67712d01 JD |
342 | { "lm85", any_chip }, |
343 | { "lm85b", lm85b }, | |
344 | { "lm85c", lm85c }, | |
345 | { "emc6d100", emc6d100 }, | |
346 | { "emc6d101", emc6d100 }, | |
347 | { "emc6d102", emc6d102 }, | |
348 | { } | |
349 | }; | |
350 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
351 | ||
1da177e4 | 352 | static struct i2c_driver lm85_driver = { |
67712d01 | 353 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 354 | .driver = { |
cdaf7934 LR |
355 | .name = "lm85", |
356 | }, | |
67712d01 JD |
357 | .probe = lm85_probe, |
358 | .remove = lm85_remove, | |
359 | .id_table = lm85_id, | |
360 | .detect = lm85_detect, | |
c3813d6a | 361 | .address_list = normal_i2c, |
1da177e4 LT |
362 | }; |
363 | ||
364 | ||
365 | /* 4 Fans */ | |
b353a487 JD |
366 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
367 | char *buf) | |
1da177e4 | 368 | { |
b353a487 | 369 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 370 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 371 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 372 | } |
b353a487 JD |
373 | |
374 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
375 | char *buf) | |
1da177e4 | 376 | { |
b353a487 | 377 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 378 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 379 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 380 | } |
b353a487 JD |
381 | |
382 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
383 | const char *buf, size_t count) | |
1da177e4 | 384 | { |
b353a487 | 385 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
386 | struct i2c_client *client = to_i2c_client(dev); |
387 | struct lm85_data *data = i2c_get_clientdata(client); | |
63f281a6 | 388 | unsigned long val = simple_strtoul(buf, NULL, 10); |
1da177e4 | 389 | |
9a61bf63 | 390 | mutex_lock(&data->update_lock); |
1da177e4 LT |
391 | data->fan_min[nr] = FAN_TO_REG(val); |
392 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 393 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
394 | return count; |
395 | } | |
396 | ||
397 | #define show_fan_offset(offset) \ | |
b353a487 JD |
398 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
399 | show_fan, NULL, offset - 1); \ | |
400 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
401 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
402 | |
403 | show_fan_offset(1); | |
404 | show_fan_offset(2); | |
405 | show_fan_offset(3); | |
406 | show_fan_offset(4); | |
407 | ||
408 | /* vid, vrm, alarms */ | |
409 | ||
1f44809a JD |
410 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
411 | char *buf) | |
1da177e4 LT |
412 | { |
413 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
414 | int vid; |
415 | ||
8ef1f029 DW |
416 | if ((data->type == adt7463 || data->type == adt7468) && |
417 | (data->vid & 0x80)) { | |
9c516ef4 JD |
418 | /* 6-pin VID (VRM 10) */ |
419 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
420 | } else { | |
421 | /* 5-pin VID (VRM 9) */ | |
422 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
423 | } | |
424 | ||
425 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
426 | } |
427 | ||
428 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
429 | ||
1f44809a JD |
430 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
431 | char *buf) | |
1da177e4 | 432 | { |
90d6619a | 433 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
434 | return sprintf(buf, "%ld\n", (long) data->vrm); |
435 | } | |
436 | ||
1f44809a JD |
437 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
438 | const char *buf, size_t count) | |
1da177e4 | 439 | { |
8f74efe8 JD |
440 | struct lm85_data *data = dev_get_drvdata(dev); |
441 | data->vrm = simple_strtoul(buf, NULL, 10); | |
1da177e4 LT |
442 | return count; |
443 | } | |
444 | ||
445 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
446 | ||
1f44809a JD |
447 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
448 | *attr, char *buf) | |
1da177e4 LT |
449 | { |
450 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 451 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
452 | } |
453 | ||
454 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
455 | ||
bf76e9d3 JD |
456 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
457 | char *buf) | |
458 | { | |
459 | int nr = to_sensor_dev_attr(attr)->index; | |
460 | struct lm85_data *data = lm85_update_device(dev); | |
461 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
462 | } | |
463 | ||
464 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
465 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
466 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
467 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
468 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
469 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
470 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
471 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
472 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
473 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
474 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
475 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
476 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
477 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
478 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
479 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
480 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
481 | ||
1da177e4 LT |
482 | /* pwm */ |
483 | ||
b353a487 JD |
484 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
485 | char *buf) | |
1da177e4 | 486 | { |
b353a487 | 487 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 488 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 489 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 490 | } |
b353a487 JD |
491 | |
492 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
493 | const char *buf, size_t count) | |
1da177e4 | 494 | { |
b353a487 | 495 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
496 | struct i2c_client *client = to_i2c_client(dev); |
497 | struct lm85_data *data = i2c_get_clientdata(client); | |
498 | long val = simple_strtol(buf, NULL, 10); | |
499 | ||
9a61bf63 | 500 | mutex_lock(&data->update_lock); |
1da177e4 LT |
501 | data->pwm[nr] = PWM_TO_REG(val); |
502 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 503 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
504 | return count; |
505 | } | |
b353a487 JD |
506 | |
507 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
508 | *attr, char *buf) | |
1da177e4 | 509 | { |
b353a487 | 510 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 511 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 512 | int pwm_zone, enable; |
1da177e4 LT |
513 | |
514 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
515 | switch (pwm_zone) { |
516 | case -1: /* PWM is always at 100% */ | |
517 | enable = 0; | |
518 | break; | |
519 | case 0: /* PWM is always at 0% */ | |
520 | case -2: /* PWM responds to manual control */ | |
521 | enable = 1; | |
522 | break; | |
523 | default: /* PWM in automatic mode */ | |
524 | enable = 2; | |
525 | } | |
526 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
527 | } |
528 | ||
455f791e JD |
529 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
530 | *attr, const char *buf, size_t count) | |
531 | { | |
532 | int nr = to_sensor_dev_attr(attr)->index; | |
533 | struct i2c_client *client = to_i2c_client(dev); | |
534 | struct lm85_data *data = i2c_get_clientdata(client); | |
535 | long val = simple_strtol(buf, NULL, 10); | |
536 | u8 config; | |
537 | ||
538 | switch (val) { | |
539 | case 0: | |
540 | config = 3; | |
541 | break; | |
542 | case 1: | |
543 | config = 7; | |
544 | break; | |
545 | case 2: | |
546 | /* Here we have to choose arbitrarily one of the 5 possible | |
547 | configurations; I go for the safest */ | |
548 | config = 6; | |
549 | break; | |
550 | default: | |
551 | return -EINVAL; | |
552 | } | |
553 | ||
554 | mutex_lock(&data->update_lock); | |
555 | data->autofan[nr].config = lm85_read_value(client, | |
556 | LM85_REG_AFAN_CONFIG(nr)); | |
557 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
558 | | (config << 5); | |
559 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
560 | data->autofan[nr].config); | |
561 | mutex_unlock(&data->update_lock); | |
562 | return count; | |
563 | } | |
564 | ||
34e7dc6c JD |
565 | static ssize_t show_pwm_freq(struct device *dev, |
566 | struct device_attribute *attr, char *buf) | |
567 | { | |
568 | int nr = to_sensor_dev_attr(attr)->index; | |
569 | struct lm85_data *data = lm85_update_device(dev); | |
8a0795d9 JD |
570 | return sprintf(buf, "%d\n", FREQ_FROM_REG(data->freq_map, |
571 | data->pwm_freq[nr])); | |
34e7dc6c JD |
572 | } |
573 | ||
574 | static ssize_t set_pwm_freq(struct device *dev, | |
575 | struct device_attribute *attr, const char *buf, size_t count) | |
576 | { | |
577 | int nr = to_sensor_dev_attr(attr)->index; | |
578 | struct i2c_client *client = to_i2c_client(dev); | |
579 | struct lm85_data *data = i2c_get_clientdata(client); | |
580 | long val = simple_strtol(buf, NULL, 10); | |
581 | ||
582 | mutex_lock(&data->update_lock); | |
8a0795d9 | 583 | data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val); |
34e7dc6c JD |
584 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
585 | (data->zone[nr].range << 4) | |
586 | | data->pwm_freq[nr]); | |
587 | mutex_unlock(&data->update_lock); | |
588 | return count; | |
589 | } | |
590 | ||
1da177e4 | 591 | #define show_pwm_reg(offset) \ |
b353a487 JD |
592 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
593 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 594 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
595 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
596 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
597 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
598 | |
599 | show_pwm_reg(1); | |
600 | show_pwm_reg(2); | |
601 | show_pwm_reg(3); | |
602 | ||
603 | /* Voltages */ | |
604 | ||
b353a487 JD |
605 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
606 | char *buf) | |
1da177e4 | 607 | { |
b353a487 | 608 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 609 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
610 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
611 | data->in_ext[nr])); | |
1da177e4 | 612 | } |
b353a487 | 613 | |
1f44809a | 614 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 615 | char *buf) |
1da177e4 | 616 | { |
b353a487 | 617 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 618 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 619 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 620 | } |
b353a487 JD |
621 | |
622 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
623 | const char *buf, size_t count) | |
1da177e4 | 624 | { |
b353a487 | 625 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
626 | struct i2c_client *client = to_i2c_client(dev); |
627 | struct lm85_data *data = i2c_get_clientdata(client); | |
628 | long val = simple_strtol(buf, NULL, 10); | |
629 | ||
9a61bf63 | 630 | mutex_lock(&data->update_lock); |
1da177e4 LT |
631 | data->in_min[nr] = INS_TO_REG(nr, val); |
632 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 633 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
634 | return count; |
635 | } | |
b353a487 JD |
636 | |
637 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
638 | char *buf) | |
1da177e4 | 639 | { |
b353a487 | 640 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 641 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 642 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 643 | } |
b353a487 JD |
644 | |
645 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
646 | const char *buf, size_t count) | |
1da177e4 | 647 | { |
b353a487 | 648 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
649 | struct i2c_client *client = to_i2c_client(dev); |
650 | struct lm85_data *data = i2c_get_clientdata(client); | |
651 | long val = simple_strtol(buf, NULL, 10); | |
652 | ||
9a61bf63 | 653 | mutex_lock(&data->update_lock); |
1da177e4 LT |
654 | data->in_max[nr] = INS_TO_REG(nr, val); |
655 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 656 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
657 | return count; |
658 | } | |
b353a487 | 659 | |
1da177e4 | 660 | #define show_in_reg(offset) \ |
b353a487 JD |
661 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
662 | show_in, NULL, offset); \ | |
663 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
664 | show_in_min, set_in_min, offset); \ | |
665 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
666 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
667 | |
668 | show_in_reg(0); | |
669 | show_in_reg(1); | |
670 | show_in_reg(2); | |
671 | show_in_reg(3); | |
672 | show_in_reg(4); | |
6b9aad2d JD |
673 | show_in_reg(5); |
674 | show_in_reg(6); | |
675 | show_in_reg(7); | |
1da177e4 LT |
676 | |
677 | /* Temps */ | |
678 | ||
b353a487 JD |
679 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
680 | char *buf) | |
1da177e4 | 681 | { |
b353a487 | 682 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 683 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
684 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
685 | data->temp_ext[nr])); | |
1da177e4 | 686 | } |
b353a487 JD |
687 | |
688 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
689 | char *buf) | |
1da177e4 | 690 | { |
b353a487 | 691 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 692 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 693 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 694 | } |
b353a487 JD |
695 | |
696 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
697 | const char *buf, size_t count) | |
1da177e4 | 698 | { |
b353a487 | 699 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
700 | struct i2c_client *client = to_i2c_client(dev); |
701 | struct lm85_data *data = i2c_get_clientdata(client); | |
702 | long val = simple_strtol(buf, NULL, 10); | |
703 | ||
79b92f2b DW |
704 | if (IS_ADT7468_OFF64(data)) |
705 | val += 64; | |
706 | ||
9a61bf63 | 707 | mutex_lock(&data->update_lock); |
1da177e4 LT |
708 | data->temp_min[nr] = TEMP_TO_REG(val); |
709 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 710 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
711 | return count; |
712 | } | |
b353a487 JD |
713 | |
714 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
715 | char *buf) | |
1da177e4 | 716 | { |
b353a487 | 717 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 718 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 719 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 720 | } |
b353a487 JD |
721 | |
722 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
723 | const char *buf, size_t count) | |
1da177e4 | 724 | { |
b353a487 | 725 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
726 | struct i2c_client *client = to_i2c_client(dev); |
727 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 728 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 729 | |
79b92f2b DW |
730 | if (IS_ADT7468_OFF64(data)) |
731 | val += 64; | |
732 | ||
9a61bf63 | 733 | mutex_lock(&data->update_lock); |
1da177e4 LT |
734 | data->temp_max[nr] = TEMP_TO_REG(val); |
735 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 736 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
737 | return count; |
738 | } | |
b353a487 | 739 | |
1da177e4 | 740 | #define show_temp_reg(offset) \ |
b353a487 JD |
741 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
742 | show_temp, NULL, offset - 1); \ | |
743 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
744 | show_temp_min, set_temp_min, offset - 1); \ | |
745 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
746 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
747 | |
748 | show_temp_reg(1); | |
749 | show_temp_reg(2); | |
750 | show_temp_reg(3); | |
751 | ||
752 | ||
753 | /* Automatic PWM control */ | |
754 | ||
b353a487 JD |
755 | static ssize_t show_pwm_auto_channels(struct device *dev, |
756 | struct device_attribute *attr, char *buf) | |
1da177e4 | 757 | { |
b353a487 | 758 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 759 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 760 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 761 | } |
b353a487 JD |
762 | |
763 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
764 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 765 | { |
b353a487 | 766 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
767 | struct i2c_client *client = to_i2c_client(dev); |
768 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 769 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 770 | |
9a61bf63 | 771 | mutex_lock(&data->update_lock); |
1da177e4 | 772 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 773 | | ZONE_TO_REG(val); |
1da177e4 LT |
774 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
775 | data->autofan[nr].config); | |
9a61bf63 | 776 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
777 | return count; |
778 | } | |
b353a487 JD |
779 | |
780 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
781 | struct device_attribute *attr, char *buf) | |
1da177e4 | 782 | { |
b353a487 | 783 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 784 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 785 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 786 | } |
b353a487 JD |
787 | |
788 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
789 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 790 | { |
b353a487 | 791 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
792 | struct i2c_client *client = to_i2c_client(dev); |
793 | struct lm85_data *data = i2c_get_clientdata(client); | |
794 | long val = simple_strtol(buf, NULL, 10); | |
795 | ||
9a61bf63 | 796 | mutex_lock(&data->update_lock); |
1da177e4 LT |
797 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
798 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
799 | data->autofan[nr].min_pwm); | |
9a61bf63 | 800 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
801 | return count; |
802 | } | |
b353a487 JD |
803 | |
804 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
805 | struct device_attribute *attr, char *buf) | |
1da177e4 | 806 | { |
b353a487 | 807 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 808 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 809 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 810 | } |
b353a487 JD |
811 | |
812 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
813 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 814 | { |
b353a487 | 815 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
816 | struct i2c_client *client = to_i2c_client(dev); |
817 | struct lm85_data *data = i2c_get_clientdata(client); | |
818 | long val = simple_strtol(buf, NULL, 10); | |
7133e56f | 819 | u8 tmp; |
1da177e4 | 820 | |
9a61bf63 | 821 | mutex_lock(&data->update_lock); |
1da177e4 | 822 | data->autofan[nr].min_off = val; |
7133e56f JD |
823 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
824 | tmp &= ~(0x20 << nr); | |
825 | if (data->autofan[nr].min_off) | |
826 | tmp |= 0x20 << nr; | |
827 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 828 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
829 | return count; |
830 | } | |
b353a487 | 831 | |
1da177e4 | 832 | #define pwm_auto(offset) \ |
b353a487 JD |
833 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
834 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
835 | set_pwm_auto_channels, offset - 1); \ | |
836 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
837 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
838 | set_pwm_auto_pwm_min, offset - 1); \ | |
839 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
840 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 841 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 842 | |
1da177e4 LT |
843 | pwm_auto(1); |
844 | pwm_auto(2); | |
845 | pwm_auto(3); | |
846 | ||
847 | /* Temperature settings for automatic PWM control */ | |
848 | ||
b353a487 JD |
849 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
850 | struct device_attribute *attr, char *buf) | |
1da177e4 | 851 | { |
b353a487 | 852 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 853 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 854 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
855 | HYST_FROM_REG(data->zone[nr].hyst)); |
856 | } | |
b353a487 JD |
857 | |
858 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
859 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 860 | { |
b353a487 | 861 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
862 | struct i2c_client *client = to_i2c_client(dev); |
863 | struct lm85_data *data = i2c_get_clientdata(client); | |
864 | int min; | |
865 | long val = simple_strtol(buf, NULL, 10); | |
866 | ||
9a61bf63 | 867 | mutex_lock(&data->update_lock); |
1da177e4 LT |
868 | min = TEMP_FROM_REG(data->zone[nr].limit); |
869 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
870 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
1f44809a | 871 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
872 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
873 | (data->zone[0].hyst << 4) | |
1f44809a | 874 | | data->zone[1].hyst); |
1da177e4 LT |
875 | } else { |
876 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 877 | (data->zone[2].hyst << 4)); |
1da177e4 | 878 | } |
9a61bf63 | 879 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
880 | return count; |
881 | } | |
b353a487 JD |
882 | |
883 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
884 | struct device_attribute *attr, char *buf) | |
1da177e4 | 885 | { |
b353a487 | 886 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 887 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 888 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 889 | } |
b353a487 JD |
890 | |
891 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
892 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 893 | { |
b353a487 | 894 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
895 | struct i2c_client *client = to_i2c_client(dev); |
896 | struct lm85_data *data = i2c_get_clientdata(client); | |
897 | long val = simple_strtol(buf, NULL, 10); | |
898 | ||
9a61bf63 | 899 | mutex_lock(&data->update_lock); |
1da177e4 LT |
900 | data->zone[nr].limit = TEMP_TO_REG(val); |
901 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
902 | data->zone[nr].limit); | |
903 | ||
904 | /* Update temp_auto_max and temp_auto_range */ | |
905 | data->zone[nr].range = RANGE_TO_REG( | |
906 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
907 | TEMP_FROM_REG(data->zone[nr].limit)); | |
908 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
909 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 910 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 LT |
911 | |
912 | /* Update temp_auto_hyst and temp_auto_off */ | |
913 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
914 | data->zone[nr].limit) - TEMP_FROM_REG( | |
915 | data->zone[nr].off_desired)); | |
1f44809a | 916 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
917 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
918 | (data->zone[0].hyst << 4) | |
1f44809a | 919 | | data->zone[1].hyst); |
1da177e4 LT |
920 | } else { |
921 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 922 | (data->zone[2].hyst << 4)); |
1da177e4 | 923 | } |
9a61bf63 | 924 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
925 | return count; |
926 | } | |
b353a487 JD |
927 | |
928 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
929 | struct device_attribute *attr, char *buf) | |
1da177e4 | 930 | { |
b353a487 | 931 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 932 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 933 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
934 | RANGE_FROM_REG(data->zone[nr].range)); |
935 | } | |
b353a487 JD |
936 | |
937 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
938 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 939 | { |
b353a487 | 940 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
941 | struct i2c_client *client = to_i2c_client(dev); |
942 | struct lm85_data *data = i2c_get_clientdata(client); | |
943 | int min; | |
944 | long val = simple_strtol(buf, NULL, 10); | |
945 | ||
9a61bf63 | 946 | mutex_lock(&data->update_lock); |
1da177e4 LT |
947 | min = TEMP_FROM_REG(data->zone[nr].limit); |
948 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
949 | data->zone[nr].range = RANGE_TO_REG( | |
950 | val - min); | |
951 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
952 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 953 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 954 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
955 | return count; |
956 | } | |
b353a487 JD |
957 | |
958 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
959 | struct device_attribute *attr, char *buf) | |
1da177e4 | 960 | { |
b353a487 | 961 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 962 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 963 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 964 | } |
b353a487 JD |
965 | |
966 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 967 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 968 | { |
b353a487 | 969 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
970 | struct i2c_client *client = to_i2c_client(dev); |
971 | struct lm85_data *data = i2c_get_clientdata(client); | |
972 | long val = simple_strtol(buf, NULL, 10); | |
973 | ||
9a61bf63 | 974 | mutex_lock(&data->update_lock); |
1da177e4 LT |
975 | data->zone[nr].critical = TEMP_TO_REG(val); |
976 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
977 | data->zone[nr].critical); | |
9a61bf63 | 978 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
979 | return count; |
980 | } | |
b353a487 | 981 | |
1da177e4 | 982 | #define temp_auto(offset) \ |
b353a487 JD |
983 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
984 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
985 | set_temp_auto_temp_off, offset - 1); \ | |
986 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
987 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
988 | set_temp_auto_temp_min, offset - 1); \ | |
989 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
990 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
991 | set_temp_auto_temp_max, offset - 1); \ | |
992 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
993 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
994 | set_temp_auto_temp_crit, offset - 1); | |
995 | ||
1da177e4 LT |
996 | temp_auto(1); |
997 | temp_auto(2); | |
998 | temp_auto(3); | |
999 | ||
0501a381 | 1000 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
1001 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1002 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1003 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1004 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1005 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1006 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1007 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1008 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
1009 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1010 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1011 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1012 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
1013 | |
1014 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1015 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1016 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1017 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1018 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1019 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
34e7dc6c JD |
1020 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1021 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1022 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
b353a487 JD |
1023 | |
1024 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1025 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1026 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1027 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1028 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1029 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1030 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1031 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1032 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1033 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1034 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1035 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1036 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1037 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1038 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1039 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1040 | |
1041 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1042 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1043 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1044 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1045 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1046 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1047 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1048 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1049 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1050 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1051 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1052 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1053 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1054 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1055 | |
1056 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1057 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1058 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1059 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1060 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1061 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1062 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1063 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1064 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
b353a487 JD |
1065 | |
1066 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1067 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1068 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1069 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1070 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1071 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1072 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1073 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1074 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1075 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1076 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1077 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1078 | ||
0501a381 MH |
1079 | &dev_attr_vrm.attr, |
1080 | &dev_attr_cpu0_vid.attr, | |
1081 | &dev_attr_alarms.attr, | |
0501a381 MH |
1082 | NULL |
1083 | }; | |
1084 | ||
1085 | static const struct attribute_group lm85_group = { | |
1086 | .attrs = lm85_attributes, | |
1087 | }; | |
1088 | ||
6b9aad2d | 1089 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1090 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1091 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1092 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1093 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1094 | NULL |
1095 | }; | |
1096 | ||
6b9aad2d JD |
1097 | static const struct attribute_group lm85_group_in4 = { |
1098 | .attrs = lm85_attributes_in4, | |
1099 | }; | |
1100 | ||
1101 | static struct attribute *lm85_attributes_in567[] = { | |
1102 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1103 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1104 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1105 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1106 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1107 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1108 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1109 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1110 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1111 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1112 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1113 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1114 | NULL |
1115 | }; | |
1116 | ||
1117 | static const struct attribute_group lm85_group_in567 = { | |
1118 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1119 | }; |
1120 | ||
5f447594 JD |
1121 | static void lm85_init_client(struct i2c_client *client) |
1122 | { | |
1123 | int value; | |
1124 | ||
1125 | /* Start monitoring if needed */ | |
1126 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1127 | if (!(value & 0x01)) { | |
1128 | dev_info(&client->dev, "Starting monitoring\n"); | |
1129 | lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); | |
1130 | } | |
1131 | ||
1132 | /* Warn about unusual configuration bits */ | |
1133 | if (value & 0x02) | |
1134 | dev_warn(&client->dev, "Device configuration is locked\n"); | |
1135 | if (!(value & 0x04)) | |
1136 | dev_warn(&client->dev, "Device is not ready\n"); | |
1137 | } | |
1138 | ||
5cfaf338 JD |
1139 | static int lm85_is_fake(struct i2c_client *client) |
1140 | { | |
1141 | /* | |
1142 | * Differenciate between real LM96000 and Winbond WPCD377I. The latter | |
1143 | * emulate the former except that it has no hardware monitoring function | |
1144 | * so the readings are always 0. | |
1145 | */ | |
1146 | int i; | |
1147 | u8 in_temp, fan; | |
1148 | ||
1149 | for (i = 0; i < 8; i++) { | |
1150 | in_temp = i2c_smbus_read_byte_data(client, 0x20 + i); | |
1151 | fan = i2c_smbus_read_byte_data(client, 0x28 + i); | |
1152 | if (in_temp != 0x00 || fan != 0xff) | |
1153 | return 0; | |
1154 | } | |
1155 | ||
1156 | return 1; | |
1157 | } | |
1158 | ||
67712d01 | 1159 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1160 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 1161 | { |
67712d01 JD |
1162 | struct i2c_adapter *adapter = client->adapter; |
1163 | int address = client->addr; | |
e89e22b2 | 1164 | const char *type_name; |
d42a2eb5 | 1165 | int company, verstep; |
1da177e4 | 1166 | |
e89e22b2 | 1167 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1168 | /* We need to be able to do byte I/O */ |
67712d01 | 1169 | return -ENODEV; |
1f44809a | 1170 | } |
1da177e4 | 1171 | |
d42a2eb5 JD |
1172 | /* Determine the chip type */ |
1173 | company = lm85_read_value(client, LM85_REG_COMPANY); | |
1174 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1175 | ||
1176 | dev_dbg(&adapter->dev, "Detecting device at 0x%02x with " | |
1177 | "COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1178 | address, company, verstep); | |
1179 | ||
1180 | /* All supported chips have the version in common */ | |
1181 | if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC && | |
1182 | (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) { | |
1183 | dev_dbg(&adapter->dev, | |
1184 | "Autodetection failed: unsupported version\n"); | |
1185 | return -ENODEV; | |
1186 | } | |
1187 | type_name = "lm85"; | |
1188 | ||
1189 | /* Now, refine the detection */ | |
1190 | if (company == LM85_COMPANY_NATIONAL) { | |
1191 | switch (verstep) { | |
1192 | case LM85_VERSTEP_LM85C: | |
1193 | type_name = "lm85c"; | |
1194 | break; | |
1195 | case LM85_VERSTEP_LM85B: | |
1196 | type_name = "lm85b"; | |
1197 | break; | |
1198 | case LM85_VERSTEP_LM96000_1: | |
1199 | case LM85_VERSTEP_LM96000_2: | |
1200 | /* Check for Winbond WPCD377I */ | |
1201 | if (lm85_is_fake(client)) { | |
1202 | dev_dbg(&adapter->dev, | |
1203 | "Found Winbond WPCD377I, ignoring\n"); | |
1204 | return -ENODEV; | |
69fc1feb | 1205 | } |
d42a2eb5 JD |
1206 | break; |
1207 | } | |
1208 | } else if (company == LM85_COMPANY_ANALOG_DEV) { | |
1209 | switch (verstep) { | |
1210 | case LM85_VERSTEP_ADM1027: | |
1211 | type_name = "adm1027"; | |
1212 | break; | |
1213 | case LM85_VERSTEP_ADT7463: | |
1214 | case LM85_VERSTEP_ADT7463C: | |
1215 | type_name = "adt7463"; | |
1216 | break; | |
1217 | case LM85_VERSTEP_ADT7468_1: | |
1218 | case LM85_VERSTEP_ADT7468_2: | |
1219 | type_name = "adt7468"; | |
1220 | break; | |
1da177e4 | 1221 | } |
d42a2eb5 JD |
1222 | } else if (company == LM85_COMPANY_SMSC) { |
1223 | switch (verstep) { | |
1224 | case LM85_VERSTEP_EMC6D100_A0: | |
1225 | case LM85_VERSTEP_EMC6D100_A1: | |
1226 | /* Note: we can't tell a '100 from a '101 */ | |
1227 | type_name = "emc6d100"; | |
1228 | break; | |
1229 | case LM85_VERSTEP_EMC6D102: | |
1230 | type_name = "emc6d102"; | |
1231 | break; | |
1232 | } | |
1233 | } else { | |
1234 | dev_dbg(&adapter->dev, | |
1235 | "Autodetection failed: unknown vendor\n"); | |
1236 | return -ENODEV; | |
1da177e4 LT |
1237 | } |
1238 | ||
67712d01 JD |
1239 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1240 | ||
1241 | return 0; | |
1242 | } | |
1da177e4 | 1243 | |
67712d01 JD |
1244 | static int lm85_probe(struct i2c_client *client, |
1245 | const struct i2c_device_id *id) | |
1246 | { | |
1247 | struct lm85_data *data; | |
1248 | int err; | |
1249 | ||
1250 | data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL); | |
1251 | if (!data) | |
1252 | return -ENOMEM; | |
1253 | ||
1254 | i2c_set_clientdata(client, data); | |
1255 | data->type = id->driver_data; | |
9a61bf63 | 1256 | mutex_init(&data->update_lock); |
1da177e4 | 1257 | |
67712d01 JD |
1258 | /* Fill in the chip specific driver values */ |
1259 | switch (data->type) { | |
1260 | case adm1027: | |
1261 | case adt7463: | |
1262 | case emc6d100: | |
1263 | case emc6d102: | |
1264 | data->freq_map = adm1027_freq_map; | |
1265 | break; | |
1266 | default: | |
1267 | data->freq_map = lm85_freq_map; | |
1268 | } | |
1da177e4 LT |
1269 | |
1270 | /* Set the VRM version */ | |
303760b4 | 1271 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1272 | |
1273 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1274 | lm85_init_client(client); |
1da177e4 LT |
1275 | |
1276 | /* Register sysfs hooks */ | |
e89e22b2 JD |
1277 | err = sysfs_create_group(&client->dev.kobj, &lm85_group); |
1278 | if (err) | |
f908037a | 1279 | goto err_kfree; |
1da177e4 | 1280 | |
79b92f2b | 1281 | /* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used |
9c516ef4 | 1282 | as a sixth digital VID input rather than an analog input. */ |
e89e22b2 | 1283 | data->vid = lm85_read_value(client, LM85_REG_VID); |
79b92f2b DW |
1284 | if (!((data->type == adt7463 || data->type == adt7468) && |
1285 | (data->vid & 0x80))) | |
e89e22b2 | 1286 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1287 | &lm85_group_in4))) |
f908037a | 1288 | goto err_remove_files; |
6b9aad2d JD |
1289 | |
1290 | /* The EMC6D100 has 3 additional voltage inputs */ | |
67712d01 | 1291 | if (data->type == emc6d100) |
e89e22b2 | 1292 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1293 | &lm85_group_in567))) |
f908037a | 1294 | goto err_remove_files; |
0501a381 | 1295 | |
e89e22b2 | 1296 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
1297 | if (IS_ERR(data->hwmon_dev)) { |
1298 | err = PTR_ERR(data->hwmon_dev); | |
f908037a | 1299 | goto err_remove_files; |
9c516ef4 JD |
1300 | } |
1301 | ||
1da177e4 LT |
1302 | return 0; |
1303 | ||
1304 | /* Error out and cleanup code */ | |
f908037a | 1305 | err_remove_files: |
e89e22b2 JD |
1306 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
1307 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); | |
67712d01 | 1308 | if (data->type == emc6d100) |
e89e22b2 | 1309 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); |
f908037a | 1310 | err_kfree: |
1da177e4 | 1311 | kfree(data); |
1da177e4 LT |
1312 | return err; |
1313 | } | |
1314 | ||
67712d01 | 1315 | static int lm85_remove(struct i2c_client *client) |
1da177e4 | 1316 | { |
943b0830 | 1317 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1318 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1319 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1320 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1321 | if (data->type == emc6d100) | |
1322 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
943b0830 | 1323 | kfree(data); |
1da177e4 LT |
1324 | return 0; |
1325 | } | |
1326 | ||
1327 | ||
d8d20615 | 1328 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1329 | { |
1330 | int res; | |
1331 | ||
1332 | /* What size location is it? */ | |
1f44809a JD |
1333 | switch (reg) { |
1334 | case LM85_REG_FAN(0): /* Read WORD data */ | |
1335 | case LM85_REG_FAN(1): | |
1336 | case LM85_REG_FAN(2): | |
1337 | case LM85_REG_FAN(3): | |
1338 | case LM85_REG_FAN_MIN(0): | |
1339 | case LM85_REG_FAN_MIN(1): | |
1340 | case LM85_REG_FAN_MIN(2): | |
1341 | case LM85_REG_FAN_MIN(3): | |
1342 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
1343 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
1344 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
1345 | break; | |
1da177e4 LT |
1346 | default: /* Read BYTE data */ |
1347 | res = i2c_smbus_read_byte_data(client, reg); | |
1f44809a | 1348 | break; |
1da177e4 LT |
1349 | } |
1350 | ||
1f44809a | 1351 | return res; |
1da177e4 LT |
1352 | } |
1353 | ||
e89e22b2 | 1354 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 | 1355 | { |
1f44809a JD |
1356 | switch (reg) { |
1357 | case LM85_REG_FAN(0): /* Write WORD data */ | |
1358 | case LM85_REG_FAN(1): | |
1359 | case LM85_REG_FAN(2): | |
1360 | case LM85_REG_FAN(3): | |
1361 | case LM85_REG_FAN_MIN(0): | |
1362 | case LM85_REG_FAN_MIN(1): | |
1363 | case LM85_REG_FAN_MIN(2): | |
1364 | case LM85_REG_FAN_MIN(3): | |
1da177e4 | 1365 | /* NOTE: ALARM is read only, so not included here */ |
e89e22b2 JD |
1366 | i2c_smbus_write_byte_data(client, reg, value & 0xff); |
1367 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
1f44809a | 1368 | break; |
1da177e4 | 1369 | default: /* Write BYTE data */ |
e89e22b2 | 1370 | i2c_smbus_write_byte_data(client, reg, value); |
1f44809a | 1371 | break; |
1da177e4 | 1372 | } |
1da177e4 LT |
1373 | } |
1374 | ||
1da177e4 LT |
1375 | static struct lm85_data *lm85_update_device(struct device *dev) |
1376 | { | |
1377 | struct i2c_client *client = to_i2c_client(dev); | |
1378 | struct lm85_data *data = i2c_get_clientdata(client); | |
1379 | int i; | |
1380 | ||
9a61bf63 | 1381 | mutex_lock(&data->update_lock); |
1da177e4 | 1382 | |
1f44809a JD |
1383 | if (!data->valid || |
1384 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
1da177e4 LT |
1385 | /* Things that change quickly */ |
1386 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1f44809a | 1387 | |
1da177e4 LT |
1388 | /* Have to read extended bits first to "freeze" the |
1389 | * more significant bits that are read later. | |
5a4d3ef3 JD |
1390 | * There are 2 additional resolution bits per channel and we |
1391 | * have room for 4, so we shift them to the left. | |
1da177e4 | 1392 | */ |
79b92f2b DW |
1393 | if (data->type == adm1027 || data->type == adt7463 || |
1394 | data->type == adt7468) { | |
1da177e4 LT |
1395 | int ext1 = lm85_read_value(client, |
1396 | ADM1027_REG_EXTEND_ADC1); | |
1397 | int ext2 = lm85_read_value(client, | |
1398 | ADM1027_REG_EXTEND_ADC2); | |
1399 | int val = (ext1 << 8) + ext2; | |
1400 | ||
1f44809a JD |
1401 | for (i = 0; i <= 4; i++) |
1402 | data->in_ext[i] = | |
1403 | ((val >> (i * 2)) & 0x03) << 2; | |
1da177e4 | 1404 | |
1f44809a JD |
1405 | for (i = 0; i <= 2; i++) |
1406 | data->temp_ext[i] = | |
1407 | (val >> ((i + 4) * 2)) & 0x0c; | |
1da177e4 LT |
1408 | } |
1409 | ||
9c516ef4 JD |
1410 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1411 | ||
1412 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1413 | data->in[i] = |
1414 | lm85_read_value(client, LM85_REG_IN(i)); | |
e89e22b2 JD |
1415 | data->fan[i] = |
1416 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1da177e4 LT |
1417 | } |
1418 | ||
79b92f2b DW |
1419 | if (!((data->type == adt7463 || data->type == adt7468) && |
1420 | (data->vid & 0x80))) { | |
9c516ef4 JD |
1421 | data->in[4] = lm85_read_value(client, |
1422 | LM85_REG_IN(4)); | |
1423 | } | |
1424 | ||
79b92f2b DW |
1425 | if (data->type == adt7468) |
1426 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); | |
1427 | ||
1da177e4 LT |
1428 | for (i = 0; i <= 2; ++i) { |
1429 | data->temp[i] = | |
1430 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1da177e4 LT |
1431 | data->pwm[i] = |
1432 | lm85_read_value(client, LM85_REG_PWM(i)); | |
79b92f2b DW |
1433 | |
1434 | if (IS_ADT7468_OFF64(data)) | |
1435 | data->temp[i] -= 64; | |
1da177e4 LT |
1436 | } |
1437 | ||
1438 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1439 | ||
dd1ac538 | 1440 | if (data->type == emc6d100) { |
1da177e4 LT |
1441 | /* Three more voltage sensors */ |
1442 | for (i = 5; i <= 7; ++i) { | |
1f44809a JD |
1443 | data->in[i] = lm85_read_value(client, |
1444 | EMC6D100_REG_IN(i)); | |
1da177e4 LT |
1445 | } |
1446 | /* More alarm bits */ | |
1f44809a JD |
1447 | data->alarms |= lm85_read_value(client, |
1448 | EMC6D100_REG_ALARM3) << 16; | |
1449 | } else if (data->type == emc6d102) { | |
1da177e4 LT |
1450 | /* Have to read LSB bits after the MSB ones because |
1451 | the reading of the MSB bits has frozen the | |
1452 | LSBs (backward from the ADM1027). | |
1453 | */ | |
1454 | int ext1 = lm85_read_value(client, | |
1455 | EMC6D102_REG_EXTEND_ADC1); | |
1456 | int ext2 = lm85_read_value(client, | |
1457 | EMC6D102_REG_EXTEND_ADC2); | |
1458 | int ext3 = lm85_read_value(client, | |
1459 | EMC6D102_REG_EXTEND_ADC3); | |
1460 | int ext4 = lm85_read_value(client, | |
1461 | EMC6D102_REG_EXTEND_ADC4); | |
1462 | data->in_ext[0] = ext3 & 0x0f; | |
1463 | data->in_ext[1] = ext4 & 0x0f; | |
e89e22b2 JD |
1464 | data->in_ext[2] = ext4 >> 4; |
1465 | data->in_ext[3] = ext3 >> 4; | |
1466 | data->in_ext[4] = ext2 >> 4; | |
1da177e4 LT |
1467 | |
1468 | data->temp_ext[0] = ext1 & 0x0f; | |
1469 | data->temp_ext[1] = ext2 & 0x0f; | |
e89e22b2 | 1470 | data->temp_ext[2] = ext1 >> 4; |
1da177e4 LT |
1471 | } |
1472 | ||
1f44809a JD |
1473 | data->last_reading = jiffies; |
1474 | } /* last_reading */ | |
1da177e4 | 1475 | |
1f44809a JD |
1476 | if (!data->valid || |
1477 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
1da177e4 LT |
1478 | /* Things that don't change often */ |
1479 | dev_dbg(&client->dev, "Reading config values\n"); | |
1480 | ||
9c516ef4 | 1481 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1482 | data->in_min[i] = |
1483 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1484 | data->in_max[i] = | |
1485 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
e89e22b2 JD |
1486 | data->fan_min[i] = |
1487 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1da177e4 LT |
1488 | } |
1489 | ||
79b92f2b DW |
1490 | if (!((data->type == adt7463 || data->type == adt7468) && |
1491 | (data->vid & 0x80))) { | |
9c516ef4 JD |
1492 | data->in_min[4] = lm85_read_value(client, |
1493 | LM85_REG_IN_MIN(4)); | |
1494 | data->in_max[4] = lm85_read_value(client, | |
1495 | LM85_REG_IN_MAX(4)); | |
1496 | } | |
1497 | ||
1f44809a | 1498 | if (data->type == emc6d100) { |
1da177e4 | 1499 | for (i = 5; i <= 7; ++i) { |
1f44809a JD |
1500 | data->in_min[i] = lm85_read_value(client, |
1501 | EMC6D100_REG_IN_MIN(i)); | |
1502 | data->in_max[i] = lm85_read_value(client, | |
1503 | EMC6D100_REG_IN_MAX(i)); | |
1da177e4 LT |
1504 | } |
1505 | } | |
1506 | ||
1da177e4 | 1507 | for (i = 0; i <= 2; ++i) { |
e89e22b2 JD |
1508 | int val; |
1509 | ||
1da177e4 LT |
1510 | data->temp_min[i] = |
1511 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1512 | data->temp_max[i] = | |
1513 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1da177e4 | 1514 | |
1da177e4 LT |
1515 | data->autofan[i].config = |
1516 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1517 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
34e7dc6c | 1518 | data->pwm_freq[i] = val & 0x07; |
e89e22b2 | 1519 | data->zone[i].range = val >> 4; |
1da177e4 LT |
1520 | data->autofan[i].min_pwm = |
1521 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1522 | data->zone[i].limit = | |
1523 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1524 | data->zone[i].critical = | |
1525 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
79b92f2b DW |
1526 | |
1527 | if (IS_ADT7468_OFF64(data)) { | |
1528 | data->temp_min[i] -= 64; | |
1529 | data->temp_max[i] -= 64; | |
1530 | data->zone[i].limit -= 64; | |
1531 | data->zone[i].critical -= 64; | |
1532 | } | |
1da177e4 LT |
1533 | } |
1534 | ||
1535 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1f44809a JD |
1536 | data->autofan[0].min_off = (i & 0x20) != 0; |
1537 | data->autofan[1].min_off = (i & 0x40) != 0; | |
1538 | data->autofan[2].min_off = (i & 0x80) != 0; | |
1da177e4 LT |
1539 | |
1540 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
e89e22b2 | 1541 | data->zone[0].hyst = i >> 4; |
1f44809a | 1542 | data->zone[1].hyst = i & 0x0f; |
1da177e4 LT |
1543 | |
1544 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
e89e22b2 | 1545 | data->zone[2].hyst = i >> 4; |
1da177e4 | 1546 | |
1da177e4 | 1547 | data->last_config = jiffies; |
1f44809a | 1548 | } /* last_config */ |
1da177e4 LT |
1549 | |
1550 | data->valid = 1; | |
1551 | ||
9a61bf63 | 1552 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1553 | |
1554 | return data; | |
1555 | } | |
1556 | ||
1557 | ||
1558 | static int __init sm_lm85_init(void) | |
1559 | { | |
1560 | return i2c_add_driver(&lm85_driver); | |
1561 | } | |
1562 | ||
1f44809a | 1563 | static void __exit sm_lm85_exit(void) |
1da177e4 LT |
1564 | { |
1565 | i2c_del_driver(&lm85_driver); | |
1566 | } | |
1567 | ||
1da177e4 | 1568 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1569 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1570 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1571 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 LT |
1572 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |
1573 | ||
1574 | module_init(sm_lm85_init); | |
1575 | module_exit(sm_lm85_exit); |