Commit | Line | Data |
---|---|---|
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, | |
f065a93e | 44 | emc6d100, emc6d102, emc6d103 |
e5e9f44c | 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 | |
f6c61cff JD |
67 | #define ADT7468_OFF64 (1 << 0) |
68 | #define ADT7468_HFPWM (1 << 1) | |
79b92f2b DW |
69 | #define IS_ADT7468_OFF64(data) \ |
70 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) | |
f6c61cff JD |
71 | #define IS_ADT7468_HFPWM(data) \ |
72 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM)) | |
79b92f2b | 73 | |
1da177e4 | 74 | /* These are the recognized values for the above regs */ |
1da177e4 LT |
75 | #define LM85_COMPANY_NATIONAL 0x01 |
76 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
1f44809a | 77 | #define LM85_COMPANY_SMSC 0x5c |
1da177e4 LT |
78 | #define LM85_VERSTEP_VMASK 0xf0 |
79 | #define LM85_VERSTEP_GENERIC 0x60 | |
c15ade65 | 80 | #define LM85_VERSTEP_GENERIC2 0x70 |
1da177e4 LT |
81 | #define LM85_VERSTEP_LM85C 0x60 |
82 | #define LM85_VERSTEP_LM85B 0x62 | |
5cfaf338 JD |
83 | #define LM85_VERSTEP_LM96000_1 0x68 |
84 | #define LM85_VERSTEP_LM96000_2 0x69 | |
1da177e4 LT |
85 | #define LM85_VERSTEP_ADM1027 0x60 |
86 | #define LM85_VERSTEP_ADT7463 0x62 | |
87 | #define LM85_VERSTEP_ADT7463C 0x6A | |
79b92f2b DW |
88 | #define LM85_VERSTEP_ADT7468_1 0x71 |
89 | #define LM85_VERSTEP_ADT7468_2 0x72 | |
1da177e4 LT |
90 | #define LM85_VERSTEP_EMC6D100_A0 0x60 |
91 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
92 | #define LM85_VERSTEP_EMC6D102 0x65 | |
f065a93e JB |
93 | #define LM85_VERSTEP_EMC6D103_A0 0x68 |
94 | #define LM85_VERSTEP_EMC6D103_A1 0x69 | |
95 | #define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */ | |
1da177e4 LT |
96 | |
97 | #define LM85_REG_CONFIG 0x40 | |
98 | ||
99 | #define LM85_REG_ALARM1 0x41 | |
100 | #define LM85_REG_ALARM2 0x42 | |
101 | ||
102 | #define LM85_REG_VID 0x43 | |
103 | ||
104 | /* Automated FAN control */ | |
105 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
106 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
107 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
1da177e4 LT |
108 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) |
109 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
110 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
111 | #define LM85_REG_AFAN_HYST1 0x6d | |
112 | #define LM85_REG_AFAN_HYST2 0x6e | |
113 | ||
1da177e4 LT |
114 | #define ADM1027_REG_EXTEND_ADC1 0x76 |
115 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
116 | |
117 | #define EMC6D100_REG_ALARM3 0x7d | |
118 | /* IN5, IN6 and IN7 */ | |
1f44809a JD |
119 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
120 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
121 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
1da177e4 LT |
122 | #define EMC6D102_REG_EXTEND_ADC1 0x85 |
123 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
124 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
125 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
126 | ||
1da177e4 | 127 | |
1f44809a | 128 | /* Conversions. Rounding and limit checking is only done on the TO_REG |
1da177e4 LT |
129 | variants. Note that you should be a bit careful with which arguments |
130 | these macros are called: arguments may be evaluated more than once. | |
131 | */ | |
132 | ||
133 | /* IN are scaled acording to built-in resistors */ | |
e89e22b2 | 134 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
135 | 2500, 2250, 3300, 5000, 12000, |
136 | 3300, 1500, 1800 /*EMC6D100*/ | |
137 | }; | |
138 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 139 | |
1f44809a JD |
140 | #define INS_TO_REG(n, val) \ |
141 | SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255) | |
1da177e4 | 142 | |
1f44809a | 143 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 144 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 145 | |
1f44809a | 146 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
147 | |
148 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
149 | static inline u16 FAN_TO_REG(unsigned long val) |
150 | { | |
151 | if (!val) | |
152 | return 0xffff; | |
153 | return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); | |
154 | } | |
1f44809a JD |
155 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
156 | 5400000 / (val)) | |
1da177e4 LT |
157 | |
158 | /* Temperature is reported in .001 degC increments */ | |
159 | #define TEMP_TO_REG(val) \ | |
1f44809a JD |
160 | SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127) |
161 | #define TEMPEXT_FROM_REG(val, ext) \ | |
5a4d3ef3 JD |
162 | SCALE(((val) << 4) + (ext), 16, 1000) |
163 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 164 | |
1f44809a | 165 | #define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255) |
1da177e4 LT |
166 | #define PWM_FROM_REG(val) (val) |
167 | ||
168 | ||
169 | /* ZONEs have the following parameters: | |
170 | * Limit (low) temp, 1. degC | |
171 | * Hysteresis (below limit), 1. degC (0-15) | |
172 | * Range of speed control, .1 degC (2-80) | |
173 | * Critical (high) temp, 1. degC | |
174 | * | |
175 | * FAN PWMs have the following parameters: | |
176 | * Reference Zone, 1, 2, 3, etc. | |
177 | * Spinup time, .05 sec | |
178 | * PWM value at limit/low temp, 1 count | |
179 | * PWM Frequency, 1. Hz | |
180 | * PWM is Min or OFF below limit, flag | |
181 | * Invert PWM output, flag | |
182 | * | |
183 | * Some chips filter the temp, others the fan. | |
184 | * Filter constant (or disabled) .1 seconds | |
185 | */ | |
186 | ||
187 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 188 | static const int lm85_range_map[] = { |
1f44809a JD |
189 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
190 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
191 | }; | |
192 | ||
193 | static int RANGE_TO_REG(int range) | |
1da177e4 LT |
194 | { |
195 | int i; | |
196 | ||
d38b1497 | 197 | /* Find the closest match */ |
1b92adad JD |
198 | for (i = 0; i < 15; ++i) { |
199 | if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2) | |
200 | break; | |
1da177e4 | 201 | } |
d38b1497 | 202 | |
1b92adad | 203 | return i; |
1da177e4 | 204 | } |
1f44809a | 205 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 206 | |
1da177e4 | 207 | /* These are the PWM frequency encodings */ |
34e7dc6c | 208 | static const int lm85_freq_map[8] = { /* 1 Hz */ |
8a0795d9 JD |
209 | 10, 15, 23, 30, 38, 47, 61, 94 |
210 | }; | |
211 | static const int adm1027_freq_map[8] = { /* 1 Hz */ | |
212 | 11, 15, 22, 29, 35, 44, 59, 88 | |
1f44809a JD |
213 | }; |
214 | ||
8a0795d9 | 215 | static int FREQ_TO_REG(const int *map, int freq) |
1da177e4 LT |
216 | { |
217 | int i; | |
218 | ||
86010c98 | 219 | /* Find the closest match */ |
1f44809a | 220 | for (i = 0; i < 7; ++i) |
8a0795d9 | 221 | if (freq <= (map[i] + map[i + 1]) / 2) |
1f44809a | 222 | break; |
e89e22b2 | 223 | return i; |
1da177e4 | 224 | } |
8a0795d9 JD |
225 | |
226 | static int FREQ_FROM_REG(const int *map, u8 reg) | |
227 | { | |
228 | return map[reg & 0x07]; | |
229 | } | |
1da177e4 LT |
230 | |
231 | /* Since we can't use strings, I'm abusing these numbers | |
232 | * to stand in for the following meanings: | |
233 | * 1 -- PWM responds to Zone 1 | |
234 | * 2 -- PWM responds to Zone 2 | |
235 | * 3 -- PWM responds to Zone 3 | |
236 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
237 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
238 | * 0 -- PWM is always at 0% (ie, off) | |
239 | * -1 -- PWM is always at 100% | |
240 | * -2 -- PWM responds to manual control | |
241 | */ | |
242 | ||
e89e22b2 JD |
243 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
244 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 245 | |
1f44809a | 246 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
247 | { |
248 | int i; | |
249 | ||
1f44809a JD |
250 | for (i = 0; i <= 7; ++i) |
251 | if (zone == lm85_zone_map[i]) | |
252 | break; | |
253 | if (i > 7) /* Not found. */ | |
1da177e4 | 254 | i = 3; /* Always 100% */ |
e89e22b2 | 255 | return i << 5; |
1da177e4 LT |
256 | } |
257 | ||
1f44809a JD |
258 | #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15) |
259 | #define HYST_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 260 | |
1da177e4 LT |
261 | /* Chip sampling rates |
262 | * | |
263 | * Some sensors are not updated more frequently than once per second | |
264 | * so it doesn't make sense to read them more often than that. | |
265 | * We cache the results and return the saved data if the driver | |
266 | * is called again before a second has elapsed. | |
267 | * | |
268 | * Also, there is significant configuration data for this chip | |
269 | * given the automatic PWM fan control that is possible. There | |
270 | * are about 47 bytes of config data to only 22 bytes of actual | |
271 | * readings. So, we keep the config data up to date in the cache | |
272 | * when it is written and only sample it once every 1 *minute* | |
273 | */ | |
274 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
275 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
276 | ||
1da177e4 LT |
277 | /* LM85 can automatically adjust fan speeds based on temperature |
278 | * This structure encapsulates an entire Zone config. There are | |
279 | * three zones (one for each temperature input) on the lm85 | |
280 | */ | |
281 | struct lm85_zone { | |
282 | s8 limit; /* Low temp limit */ | |
283 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
284 | u8 range; /* Temp range, encoded */ | |
285 | s8 critical; /* "All fans ON" temp limit */ | |
1f44809a | 286 | u8 off_desired; /* Actual "off" temperature specified. Preserved |
1da177e4 LT |
287 | * to prevent "drift" as other autofan control |
288 | * values change. | |
289 | */ | |
1f44809a | 290 | u8 max_desired; /* Actual "max" temperature specified. Preserved |
1da177e4 LT |
291 | * to prevent "drift" as other autofan control |
292 | * values change. | |
293 | */ | |
294 | }; | |
295 | ||
296 | struct lm85_autofan { | |
297 | u8 config; /* Register value */ | |
1da177e4 LT |
298 | u8 min_pwm; /* Minimum PWM value, encoded */ |
299 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
300 | }; | |
301 | ||
ed6bafbf JD |
302 | /* For each registered chip, we need to keep some data in memory. |
303 | The structure is dynamically allocated. */ | |
1da177e4 | 304 | struct lm85_data { |
1beeffe4 | 305 | struct device *hwmon_dev; |
8a0795d9 | 306 | const int *freq_map; |
1da177e4 LT |
307 | enum chips type; |
308 | ||
de248805 GR |
309 | bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ |
310 | ||
9a61bf63 | 311 | struct mutex update_lock; |
1da177e4 LT |
312 | int valid; /* !=0 if following fields are valid */ |
313 | unsigned long last_reading; /* In jiffies */ | |
314 | unsigned long last_config; /* In jiffies */ | |
315 | ||
316 | u8 in[8]; /* Register value */ | |
317 | u8 in_max[8]; /* Register value */ | |
318 | u8 in_min[8]; /* Register value */ | |
319 | s8 temp[3]; /* Register value */ | |
320 | s8 temp_min[3]; /* Register value */ | |
321 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
322 | u16 fan[4]; /* Register value */ |
323 | u16 fan_min[4]; /* Register value */ | |
324 | u8 pwm[3]; /* Register value */ | |
34e7dc6c | 325 | u8 pwm_freq[3]; /* Register encoding */ |
1da177e4 LT |
326 | u8 temp_ext[3]; /* Decoded values */ |
327 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
328 | u8 vid; /* Register value */ |
329 | u8 vrm; /* VRM version */ | |
1da177e4 | 330 | u32 alarms; /* Register encoding, combined */ |
79b92f2b | 331 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
1da177e4 LT |
332 | struct lm85_autofan autofan[3]; |
333 | struct lm85_zone zone[3]; | |
334 | }; | |
335 | ||
310ec792 | 336 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info); |
67712d01 JD |
337 | static int lm85_probe(struct i2c_client *client, |
338 | const struct i2c_device_id *id); | |
339 | static int lm85_remove(struct i2c_client *client); | |
1da177e4 | 340 | |
f6c27fc1 | 341 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
e89e22b2 | 342 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value); |
1da177e4 | 343 | static struct lm85_data *lm85_update_device(struct device *dev); |
1da177e4 LT |
344 | |
345 | ||
67712d01 JD |
346 | static const struct i2c_device_id lm85_id[] = { |
347 | { "adm1027", adm1027 }, | |
348 | { "adt7463", adt7463 }, | |
c15ade65 | 349 | { "adt7468", adt7468 }, |
67712d01 JD |
350 | { "lm85", any_chip }, |
351 | { "lm85b", lm85b }, | |
352 | { "lm85c", lm85c }, | |
353 | { "emc6d100", emc6d100 }, | |
354 | { "emc6d101", emc6d100 }, | |
355 | { "emc6d102", emc6d102 }, | |
f065a93e | 356 | { "emc6d103", emc6d103 }, |
67712d01 JD |
357 | { } |
358 | }; | |
359 | MODULE_DEVICE_TABLE(i2c, lm85_id); | |
360 | ||
1da177e4 | 361 | static struct i2c_driver lm85_driver = { |
67712d01 | 362 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 363 | .driver = { |
cdaf7934 LR |
364 | .name = "lm85", |
365 | }, | |
67712d01 JD |
366 | .probe = lm85_probe, |
367 | .remove = lm85_remove, | |
368 | .id_table = lm85_id, | |
369 | .detect = lm85_detect, | |
c3813d6a | 370 | .address_list = normal_i2c, |
1da177e4 LT |
371 | }; |
372 | ||
373 | ||
374 | /* 4 Fans */ | |
b353a487 JD |
375 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
376 | char *buf) | |
1da177e4 | 377 | { |
b353a487 | 378 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 379 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 380 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 381 | } |
b353a487 JD |
382 | |
383 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
384 | char *buf) | |
1da177e4 | 385 | { |
b353a487 | 386 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 387 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 388 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 389 | } |
b353a487 JD |
390 | |
391 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
392 | const char *buf, size_t count) | |
1da177e4 | 393 | { |
b353a487 | 394 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
395 | struct i2c_client *client = to_i2c_client(dev); |
396 | struct lm85_data *data = i2c_get_clientdata(client); | |
63f281a6 | 397 | unsigned long val = simple_strtoul(buf, NULL, 10); |
1da177e4 | 398 | |
9a61bf63 | 399 | mutex_lock(&data->update_lock); |
1da177e4 LT |
400 | data->fan_min[nr] = FAN_TO_REG(val); |
401 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 402 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
403 | return count; |
404 | } | |
405 | ||
406 | #define show_fan_offset(offset) \ | |
b353a487 JD |
407 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
408 | show_fan, NULL, offset - 1); \ | |
409 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
410 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
411 | |
412 | show_fan_offset(1); | |
413 | show_fan_offset(2); | |
414 | show_fan_offset(3); | |
415 | show_fan_offset(4); | |
416 | ||
417 | /* vid, vrm, alarms */ | |
418 | ||
1f44809a JD |
419 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
420 | char *buf) | |
1da177e4 LT |
421 | { |
422 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
423 | int vid; |
424 | ||
de248805 | 425 | if (data->has_vid5) { |
9c516ef4 JD |
426 | /* 6-pin VID (VRM 10) */ |
427 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
428 | } else { | |
429 | /* 5-pin VID (VRM 9) */ | |
430 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
431 | } | |
432 | ||
433 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
434 | } |
435 | ||
436 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
437 | ||
1f44809a JD |
438 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
439 | char *buf) | |
1da177e4 | 440 | { |
90d6619a | 441 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
442 | return sprintf(buf, "%ld\n", (long) data->vrm); |
443 | } | |
444 | ||
1f44809a JD |
445 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
446 | const char *buf, size_t count) | |
1da177e4 | 447 | { |
8f74efe8 JD |
448 | struct lm85_data *data = dev_get_drvdata(dev); |
449 | data->vrm = simple_strtoul(buf, NULL, 10); | |
1da177e4 LT |
450 | return count; |
451 | } | |
452 | ||
453 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
454 | ||
1f44809a JD |
455 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
456 | *attr, char *buf) | |
1da177e4 LT |
457 | { |
458 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 459 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
460 | } |
461 | ||
462 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
463 | ||
bf76e9d3 JD |
464 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
465 | char *buf) | |
466 | { | |
467 | int nr = to_sensor_dev_attr(attr)->index; | |
468 | struct lm85_data *data = lm85_update_device(dev); | |
469 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
470 | } | |
471 | ||
472 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
473 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
474 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
475 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
476 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
477 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
478 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
479 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
480 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
481 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
482 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
483 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
484 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
485 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
486 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
487 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
488 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
489 | ||
1da177e4 LT |
490 | /* pwm */ |
491 | ||
b353a487 JD |
492 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
493 | char *buf) | |
1da177e4 | 494 | { |
b353a487 | 495 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 496 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 497 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 498 | } |
b353a487 JD |
499 | |
500 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
501 | const char *buf, size_t count) | |
1da177e4 | 502 | { |
b353a487 | 503 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
504 | struct i2c_client *client = to_i2c_client(dev); |
505 | struct lm85_data *data = i2c_get_clientdata(client); | |
506 | long val = simple_strtol(buf, NULL, 10); | |
507 | ||
9a61bf63 | 508 | mutex_lock(&data->update_lock); |
1da177e4 LT |
509 | data->pwm[nr] = PWM_TO_REG(val); |
510 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 511 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
512 | return count; |
513 | } | |
b353a487 JD |
514 | |
515 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
516 | *attr, char *buf) | |
1da177e4 | 517 | { |
b353a487 | 518 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 519 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 520 | int pwm_zone, enable; |
1da177e4 LT |
521 | |
522 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
523 | switch (pwm_zone) { |
524 | case -1: /* PWM is always at 100% */ | |
525 | enable = 0; | |
526 | break; | |
527 | case 0: /* PWM is always at 0% */ | |
528 | case -2: /* PWM responds to manual control */ | |
529 | enable = 1; | |
530 | break; | |
531 | default: /* PWM in automatic mode */ | |
532 | enable = 2; | |
533 | } | |
534 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
535 | } |
536 | ||
455f791e JD |
537 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
538 | *attr, const char *buf, size_t count) | |
539 | { | |
540 | int nr = to_sensor_dev_attr(attr)->index; | |
541 | struct i2c_client *client = to_i2c_client(dev); | |
542 | struct lm85_data *data = i2c_get_clientdata(client); | |
543 | long val = simple_strtol(buf, NULL, 10); | |
544 | u8 config; | |
545 | ||
546 | switch (val) { | |
547 | case 0: | |
548 | config = 3; | |
549 | break; | |
550 | case 1: | |
551 | config = 7; | |
552 | break; | |
553 | case 2: | |
554 | /* Here we have to choose arbitrarily one of the 5 possible | |
555 | configurations; I go for the safest */ | |
556 | config = 6; | |
557 | break; | |
558 | default: | |
559 | return -EINVAL; | |
560 | } | |
561 | ||
562 | mutex_lock(&data->update_lock); | |
563 | data->autofan[nr].config = lm85_read_value(client, | |
564 | LM85_REG_AFAN_CONFIG(nr)); | |
565 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
566 | | (config << 5); | |
567 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
568 | data->autofan[nr].config); | |
569 | mutex_unlock(&data->update_lock); | |
570 | return count; | |
571 | } | |
572 | ||
34e7dc6c JD |
573 | static ssize_t show_pwm_freq(struct device *dev, |
574 | struct device_attribute *attr, char *buf) | |
575 | { | |
576 | int nr = to_sensor_dev_attr(attr)->index; | |
577 | struct lm85_data *data = lm85_update_device(dev); | |
f6c61cff JD |
578 | int freq; |
579 | ||
580 | if (IS_ADT7468_HFPWM(data)) | |
581 | freq = 22500; | |
582 | else | |
583 | freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]); | |
584 | ||
585 | return sprintf(buf, "%d\n", freq); | |
34e7dc6c JD |
586 | } |
587 | ||
588 | static ssize_t set_pwm_freq(struct device *dev, | |
589 | struct device_attribute *attr, const char *buf, size_t count) | |
590 | { | |
591 | int nr = to_sensor_dev_attr(attr)->index; | |
592 | struct i2c_client *client = to_i2c_client(dev); | |
593 | struct lm85_data *data = i2c_get_clientdata(client); | |
594 | long val = simple_strtol(buf, NULL, 10); | |
595 | ||
596 | mutex_lock(&data->update_lock); | |
f6c61cff JD |
597 | /* The ADT7468 has a special high-frequency PWM output mode, |
598 | * where all PWM outputs are driven by a 22.5 kHz clock. | |
599 | * This might confuse the user, but there's not much we can do. */ | |
600 | if (data->type == adt7468 && val >= 11300) { /* High freq. mode */ | |
601 | data->cfg5 &= ~ADT7468_HFPWM; | |
602 | lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); | |
603 | } else { /* Low freq. mode */ | |
604 | data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val); | |
605 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
606 | (data->zone[nr].range << 4) | |
607 | | data->pwm_freq[nr]); | |
608 | if (data->type == adt7468) { | |
609 | data->cfg5 |= ADT7468_HFPWM; | |
610 | lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); | |
611 | } | |
612 | } | |
34e7dc6c JD |
613 | mutex_unlock(&data->update_lock); |
614 | return count; | |
615 | } | |
616 | ||
1da177e4 | 617 | #define show_pwm_reg(offset) \ |
b353a487 JD |
618 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
619 | show_pwm, set_pwm, offset - 1); \ | |
455f791e | 620 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
34e7dc6c JD |
621 | show_pwm_enable, set_pwm_enable, offset - 1); \ |
622 | static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \ | |
623 | show_pwm_freq, set_pwm_freq, offset - 1) | |
1da177e4 LT |
624 | |
625 | show_pwm_reg(1); | |
626 | show_pwm_reg(2); | |
627 | show_pwm_reg(3); | |
628 | ||
629 | /* Voltages */ | |
630 | ||
b353a487 JD |
631 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
632 | char *buf) | |
1da177e4 | 633 | { |
b353a487 | 634 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 635 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
636 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
637 | data->in_ext[nr])); | |
1da177e4 | 638 | } |
b353a487 | 639 | |
1f44809a | 640 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 641 | char *buf) |
1da177e4 | 642 | { |
b353a487 | 643 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 644 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 645 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 646 | } |
b353a487 JD |
647 | |
648 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
649 | const char *buf, size_t count) | |
1da177e4 | 650 | { |
b353a487 | 651 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
652 | struct i2c_client *client = to_i2c_client(dev); |
653 | struct lm85_data *data = i2c_get_clientdata(client); | |
654 | long val = simple_strtol(buf, NULL, 10); | |
655 | ||
9a61bf63 | 656 | mutex_lock(&data->update_lock); |
1da177e4 LT |
657 | data->in_min[nr] = INS_TO_REG(nr, val); |
658 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 659 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
660 | return count; |
661 | } | |
b353a487 JD |
662 | |
663 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
664 | char *buf) | |
1da177e4 | 665 | { |
b353a487 | 666 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 667 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 668 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 669 | } |
b353a487 JD |
670 | |
671 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
672 | const char *buf, size_t count) | |
1da177e4 | 673 | { |
b353a487 | 674 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
675 | struct i2c_client *client = to_i2c_client(dev); |
676 | struct lm85_data *data = i2c_get_clientdata(client); | |
677 | long val = simple_strtol(buf, NULL, 10); | |
678 | ||
9a61bf63 | 679 | mutex_lock(&data->update_lock); |
1da177e4 LT |
680 | data->in_max[nr] = INS_TO_REG(nr, val); |
681 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 682 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
683 | return count; |
684 | } | |
b353a487 | 685 | |
1da177e4 | 686 | #define show_in_reg(offset) \ |
b353a487 JD |
687 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
688 | show_in, NULL, offset); \ | |
689 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
690 | show_in_min, set_in_min, offset); \ | |
691 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
692 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
693 | |
694 | show_in_reg(0); | |
695 | show_in_reg(1); | |
696 | show_in_reg(2); | |
697 | show_in_reg(3); | |
698 | show_in_reg(4); | |
6b9aad2d JD |
699 | show_in_reg(5); |
700 | show_in_reg(6); | |
701 | show_in_reg(7); | |
1da177e4 LT |
702 | |
703 | /* Temps */ | |
704 | ||
b353a487 JD |
705 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
706 | char *buf) | |
1da177e4 | 707 | { |
b353a487 | 708 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 709 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
710 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
711 | data->temp_ext[nr])); | |
1da177e4 | 712 | } |
b353a487 JD |
713 | |
714 | static ssize_t show_temp_min(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_min[nr])); |
1da177e4 | 720 | } |
b353a487 JD |
721 | |
722 | static ssize_t set_temp_min(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); | |
728 | long val = simple_strtol(buf, NULL, 10); | |
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_min[nr] = TEMP_TO_REG(val); |
735 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 736 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
737 | return count; |
738 | } | |
b353a487 JD |
739 | |
740 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
741 | char *buf) | |
1da177e4 | 742 | { |
b353a487 | 743 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 744 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 745 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 746 | } |
b353a487 JD |
747 | |
748 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
749 | const char *buf, size_t count) | |
1da177e4 | 750 | { |
b353a487 | 751 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
752 | struct i2c_client *client = to_i2c_client(dev); |
753 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 754 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 755 | |
79b92f2b DW |
756 | if (IS_ADT7468_OFF64(data)) |
757 | val += 64; | |
758 | ||
9a61bf63 | 759 | mutex_lock(&data->update_lock); |
1da177e4 LT |
760 | data->temp_max[nr] = TEMP_TO_REG(val); |
761 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 762 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
763 | return count; |
764 | } | |
b353a487 | 765 | |
1da177e4 | 766 | #define show_temp_reg(offset) \ |
b353a487 JD |
767 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
768 | show_temp, NULL, offset - 1); \ | |
769 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
770 | show_temp_min, set_temp_min, offset - 1); \ | |
771 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
772 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
773 | |
774 | show_temp_reg(1); | |
775 | show_temp_reg(2); | |
776 | show_temp_reg(3); | |
777 | ||
778 | ||
779 | /* Automatic PWM control */ | |
780 | ||
b353a487 JD |
781 | static ssize_t show_pwm_auto_channels(struct device *dev, |
782 | struct device_attribute *attr, char *buf) | |
1da177e4 | 783 | { |
b353a487 | 784 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 785 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 786 | return sprintf(buf, "%d\n", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 787 | } |
b353a487 JD |
788 | |
789 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
790 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 791 | { |
b353a487 | 792 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
793 | struct i2c_client *client = to_i2c_client(dev); |
794 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 795 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 796 | |
9a61bf63 | 797 | mutex_lock(&data->update_lock); |
1da177e4 | 798 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 799 | | ZONE_TO_REG(val); |
1da177e4 LT |
800 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
801 | data->autofan[nr].config); | |
9a61bf63 | 802 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
803 | return count; |
804 | } | |
b353a487 JD |
805 | |
806 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
807 | struct device_attribute *attr, char *buf) | |
1da177e4 | 808 | { |
b353a487 | 809 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 810 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 811 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 812 | } |
b353a487 JD |
813 | |
814 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
815 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 816 | { |
b353a487 | 817 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
818 | struct i2c_client *client = to_i2c_client(dev); |
819 | struct lm85_data *data = i2c_get_clientdata(client); | |
820 | long val = simple_strtol(buf, NULL, 10); | |
821 | ||
9a61bf63 | 822 | mutex_lock(&data->update_lock); |
1da177e4 LT |
823 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
824 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
825 | data->autofan[nr].min_pwm); | |
9a61bf63 | 826 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
827 | return count; |
828 | } | |
b353a487 JD |
829 | |
830 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
831 | struct device_attribute *attr, char *buf) | |
1da177e4 | 832 | { |
b353a487 | 833 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 834 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 835 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 836 | } |
b353a487 JD |
837 | |
838 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
839 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 840 | { |
b353a487 | 841 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
842 | struct i2c_client *client = to_i2c_client(dev); |
843 | struct lm85_data *data = i2c_get_clientdata(client); | |
844 | long val = simple_strtol(buf, NULL, 10); | |
7133e56f | 845 | u8 tmp; |
1da177e4 | 846 | |
9a61bf63 | 847 | mutex_lock(&data->update_lock); |
1da177e4 | 848 | data->autofan[nr].min_off = val; |
7133e56f JD |
849 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
850 | tmp &= ~(0x20 << nr); | |
851 | if (data->autofan[nr].min_off) | |
852 | tmp |= 0x20 << nr; | |
853 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 854 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
855 | return count; |
856 | } | |
b353a487 | 857 | |
1da177e4 | 858 | #define pwm_auto(offset) \ |
b353a487 JD |
859 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
860 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
861 | set_pwm_auto_channels, offset - 1); \ | |
862 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
863 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
864 | set_pwm_auto_pwm_min, offset - 1); \ | |
865 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
866 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
34e7dc6c | 867 | set_pwm_auto_pwm_minctl, offset - 1) |
b353a487 | 868 | |
1da177e4 LT |
869 | pwm_auto(1); |
870 | pwm_auto(2); | |
871 | pwm_auto(3); | |
872 | ||
873 | /* Temperature settings for automatic PWM control */ | |
874 | ||
b353a487 JD |
875 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
876 | struct device_attribute *attr, char *buf) | |
1da177e4 | 877 | { |
b353a487 | 878 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 879 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 880 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
881 | HYST_FROM_REG(data->zone[nr].hyst)); |
882 | } | |
b353a487 JD |
883 | |
884 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
885 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 886 | { |
b353a487 | 887 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
888 | struct i2c_client *client = to_i2c_client(dev); |
889 | struct lm85_data *data = i2c_get_clientdata(client); | |
890 | int min; | |
891 | long val = simple_strtol(buf, NULL, 10); | |
892 | ||
9a61bf63 | 893 | mutex_lock(&data->update_lock); |
1da177e4 LT |
894 | min = TEMP_FROM_REG(data->zone[nr].limit); |
895 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
896 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
1f44809a | 897 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
898 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
899 | (data->zone[0].hyst << 4) | |
1f44809a | 900 | | data->zone[1].hyst); |
1da177e4 LT |
901 | } else { |
902 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 903 | (data->zone[2].hyst << 4)); |
1da177e4 | 904 | } |
9a61bf63 | 905 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
906 | return count; |
907 | } | |
b353a487 JD |
908 | |
909 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
910 | struct device_attribute *attr, char *buf) | |
1da177e4 | 911 | { |
b353a487 | 912 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 913 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 914 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 915 | } |
b353a487 JD |
916 | |
917 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
918 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 919 | { |
b353a487 | 920 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
921 | struct i2c_client *client = to_i2c_client(dev); |
922 | struct lm85_data *data = i2c_get_clientdata(client); | |
923 | long val = simple_strtol(buf, NULL, 10); | |
924 | ||
9a61bf63 | 925 | mutex_lock(&data->update_lock); |
1da177e4 LT |
926 | data->zone[nr].limit = TEMP_TO_REG(val); |
927 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
928 | data->zone[nr].limit); | |
929 | ||
930 | /* Update temp_auto_max and temp_auto_range */ | |
931 | data->zone[nr].range = RANGE_TO_REG( | |
932 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
933 | TEMP_FROM_REG(data->zone[nr].limit)); | |
934 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
935 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 936 | | (data->pwm_freq[nr] & 0x07)); |
1da177e4 LT |
937 | |
938 | /* Update temp_auto_hyst and temp_auto_off */ | |
939 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
940 | data->zone[nr].limit) - TEMP_FROM_REG( | |
941 | data->zone[nr].off_desired)); | |
1f44809a | 942 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
943 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
944 | (data->zone[0].hyst << 4) | |
1f44809a | 945 | | data->zone[1].hyst); |
1da177e4 LT |
946 | } else { |
947 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 948 | (data->zone[2].hyst << 4)); |
1da177e4 | 949 | } |
9a61bf63 | 950 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
951 | return count; |
952 | } | |
b353a487 JD |
953 | |
954 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
955 | struct device_attribute *attr, char *buf) | |
1da177e4 | 956 | { |
b353a487 | 957 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 958 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 959 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
960 | RANGE_FROM_REG(data->zone[nr].range)); |
961 | } | |
b353a487 JD |
962 | |
963 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
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 | int min; | |
970 | long val = simple_strtol(buf, NULL, 10); | |
971 | ||
9a61bf63 | 972 | mutex_lock(&data->update_lock); |
1da177e4 LT |
973 | min = TEMP_FROM_REG(data->zone[nr].limit); |
974 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
975 | data->zone[nr].range = RANGE_TO_REG( | |
976 | val - min); | |
977 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
978 | ((data->zone[nr].range & 0x0f) << 4) | |
34e7dc6c | 979 | | (data->pwm_freq[nr] & 0x07)); |
9a61bf63 | 980 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
981 | return count; |
982 | } | |
b353a487 JD |
983 | |
984 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
985 | struct device_attribute *attr, char *buf) | |
1da177e4 | 986 | { |
b353a487 | 987 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 988 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 989 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 990 | } |
b353a487 JD |
991 | |
992 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 993 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 994 | { |
b353a487 | 995 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
996 | struct i2c_client *client = to_i2c_client(dev); |
997 | struct lm85_data *data = i2c_get_clientdata(client); | |
998 | long val = simple_strtol(buf, NULL, 10); | |
999 | ||
9a61bf63 | 1000 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1001 | data->zone[nr].critical = TEMP_TO_REG(val); |
1002 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
1003 | data->zone[nr].critical); | |
9a61bf63 | 1004 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1005 | return count; |
1006 | } | |
b353a487 | 1007 | |
1da177e4 | 1008 | #define temp_auto(offset) \ |
b353a487 JD |
1009 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
1010 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
1011 | set_temp_auto_temp_off, offset - 1); \ | |
1012 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
1013 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
1014 | set_temp_auto_temp_min, offset - 1); \ | |
1015 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
1016 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
1017 | set_temp_auto_temp_max, offset - 1); \ | |
1018 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
1019 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
1020 | set_temp_auto_temp_crit, offset - 1); | |
1021 | ||
1da177e4 LT |
1022 | temp_auto(1); |
1023 | temp_auto(2); | |
1024 | temp_auto(3); | |
1025 | ||
0501a381 | 1026 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
1027 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1028 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1029 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1030 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1031 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1032 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1033 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1034 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
1035 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1036 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1037 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1038 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
1039 | |
1040 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1041 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1042 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1043 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1044 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1045 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
34e7dc6c JD |
1046 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1047 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1048 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
b353a487 JD |
1049 | |
1050 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1051 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1052 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1053 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1054 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1055 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1056 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1057 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1058 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1059 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1060 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1061 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1062 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1063 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1064 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1065 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1066 | |
1067 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1068 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1069 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1070 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1071 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1072 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1073 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1074 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1075 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1076 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1077 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1078 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1079 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1080 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1081 | |
1082 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1083 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1084 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1085 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1086 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1087 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1088 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1089 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1090 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
b353a487 JD |
1091 | |
1092 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1093 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1094 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1095 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1096 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1097 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1098 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1099 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1100 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1101 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1102 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1103 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1104 | ||
0501a381 MH |
1105 | &dev_attr_vrm.attr, |
1106 | &dev_attr_cpu0_vid.attr, | |
1107 | &dev_attr_alarms.attr, | |
0501a381 MH |
1108 | NULL |
1109 | }; | |
1110 | ||
1111 | static const struct attribute_group lm85_group = { | |
1112 | .attrs = lm85_attributes, | |
1113 | }; | |
1114 | ||
6b9aad2d | 1115 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1116 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1117 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1118 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1119 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1120 | NULL |
1121 | }; | |
1122 | ||
6b9aad2d JD |
1123 | static const struct attribute_group lm85_group_in4 = { |
1124 | .attrs = lm85_attributes_in4, | |
1125 | }; | |
1126 | ||
1127 | static struct attribute *lm85_attributes_in567[] = { | |
1128 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1129 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1130 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1131 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1132 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1133 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1134 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1135 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1136 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1137 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1138 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1139 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1140 | NULL |
1141 | }; | |
1142 | ||
1143 | static const struct attribute_group lm85_group_in567 = { | |
1144 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1145 | }; |
1146 | ||
5f447594 JD |
1147 | static void lm85_init_client(struct i2c_client *client) |
1148 | { | |
1149 | int value; | |
1150 | ||
1151 | /* Start monitoring if needed */ | |
1152 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1153 | if (!(value & 0x01)) { | |
1154 | dev_info(&client->dev, "Starting monitoring\n"); | |
1155 | lm85_write_value(client, LM85_REG_CONFIG, value | 0x01); | |
1156 | } | |
1157 | ||
1158 | /* Warn about unusual configuration bits */ | |
1159 | if (value & 0x02) | |
1160 | dev_warn(&client->dev, "Device configuration is locked\n"); | |
1161 | if (!(value & 0x04)) | |
1162 | dev_warn(&client->dev, "Device is not ready\n"); | |
1163 | } | |
1164 | ||
5cfaf338 JD |
1165 | static int lm85_is_fake(struct i2c_client *client) |
1166 | { | |
1167 | /* | |
1168 | * Differenciate between real LM96000 and Winbond WPCD377I. The latter | |
1169 | * emulate the former except that it has no hardware monitoring function | |
1170 | * so the readings are always 0. | |
1171 | */ | |
1172 | int i; | |
1173 | u8 in_temp, fan; | |
1174 | ||
1175 | for (i = 0; i < 8; i++) { | |
1176 | in_temp = i2c_smbus_read_byte_data(client, 0x20 + i); | |
1177 | fan = i2c_smbus_read_byte_data(client, 0x28 + i); | |
1178 | if (in_temp != 0x00 || fan != 0xff) | |
1179 | return 0; | |
1180 | } | |
1181 | ||
1182 | return 1; | |
1183 | } | |
1184 | ||
67712d01 | 1185 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1186 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
1da177e4 | 1187 | { |
67712d01 JD |
1188 | struct i2c_adapter *adapter = client->adapter; |
1189 | int address = client->addr; | |
e89e22b2 | 1190 | const char *type_name; |
d42a2eb5 | 1191 | int company, verstep; |
1da177e4 | 1192 | |
e89e22b2 | 1193 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1194 | /* We need to be able to do byte I/O */ |
67712d01 | 1195 | return -ENODEV; |
1f44809a | 1196 | } |
1da177e4 | 1197 | |
d42a2eb5 JD |
1198 | /* Determine the chip type */ |
1199 | company = lm85_read_value(client, LM85_REG_COMPANY); | |
1200 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1201 | ||
1202 | dev_dbg(&adapter->dev, "Detecting device at 0x%02x with " | |
1203 | "COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1204 | address, company, verstep); | |
1205 | ||
1206 | /* All supported chips have the version in common */ | |
1207 | if ((verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC && | |
1208 | (verstep & LM85_VERSTEP_VMASK) != LM85_VERSTEP_GENERIC2) { | |
1209 | dev_dbg(&adapter->dev, | |
1210 | "Autodetection failed: unsupported version\n"); | |
1211 | return -ENODEV; | |
1212 | } | |
1213 | type_name = "lm85"; | |
1214 | ||
1215 | /* Now, refine the detection */ | |
1216 | if (company == LM85_COMPANY_NATIONAL) { | |
1217 | switch (verstep) { | |
1218 | case LM85_VERSTEP_LM85C: | |
1219 | type_name = "lm85c"; | |
1220 | break; | |
1221 | case LM85_VERSTEP_LM85B: | |
1222 | type_name = "lm85b"; | |
1223 | break; | |
1224 | case LM85_VERSTEP_LM96000_1: | |
1225 | case LM85_VERSTEP_LM96000_2: | |
1226 | /* Check for Winbond WPCD377I */ | |
1227 | if (lm85_is_fake(client)) { | |
1228 | dev_dbg(&adapter->dev, | |
1229 | "Found Winbond WPCD377I, ignoring\n"); | |
1230 | return -ENODEV; | |
69fc1feb | 1231 | } |
d42a2eb5 JD |
1232 | break; |
1233 | } | |
1234 | } else if (company == LM85_COMPANY_ANALOG_DEV) { | |
1235 | switch (verstep) { | |
1236 | case LM85_VERSTEP_ADM1027: | |
1237 | type_name = "adm1027"; | |
1238 | break; | |
1239 | case LM85_VERSTEP_ADT7463: | |
1240 | case LM85_VERSTEP_ADT7463C: | |
1241 | type_name = "adt7463"; | |
1242 | break; | |
1243 | case LM85_VERSTEP_ADT7468_1: | |
1244 | case LM85_VERSTEP_ADT7468_2: | |
1245 | type_name = "adt7468"; | |
1246 | break; | |
1da177e4 | 1247 | } |
d42a2eb5 JD |
1248 | } else if (company == LM85_COMPANY_SMSC) { |
1249 | switch (verstep) { | |
1250 | case LM85_VERSTEP_EMC6D100_A0: | |
1251 | case LM85_VERSTEP_EMC6D100_A1: | |
1252 | /* Note: we can't tell a '100 from a '101 */ | |
1253 | type_name = "emc6d100"; | |
1254 | break; | |
1255 | case LM85_VERSTEP_EMC6D102: | |
1256 | type_name = "emc6d102"; | |
1257 | break; | |
f065a93e JB |
1258 | case LM85_VERSTEP_EMC6D103_A0: |
1259 | case LM85_VERSTEP_EMC6D103_A1: | |
1260 | type_name = "emc6d103"; | |
1261 | break; | |
1262 | /* | |
1263 | * Registers apparently missing in EMC6D103S/EMC6D103:A2 | |
1264 | * compared to EMC6D103:A0, EMC6D103:A1, and EMC6D102 | |
1265 | * (according to the data sheets), but used unconditionally | |
1266 | * in the driver: 62[5:7], 6D[0:7], and 6E[0:7]. | |
1267 | * So skip EMC6D103S for now. | |
1268 | case LM85_VERSTEP_EMC6D103S: | |
1269 | type_name = "emc6d103s"; | |
1270 | break; | |
1271 | */ | |
d42a2eb5 JD |
1272 | } |
1273 | } else { | |
1274 | dev_dbg(&adapter->dev, | |
1275 | "Autodetection failed: unknown vendor\n"); | |
1276 | return -ENODEV; | |
1da177e4 LT |
1277 | } |
1278 | ||
67712d01 JD |
1279 | strlcpy(info->type, type_name, I2C_NAME_SIZE); |
1280 | ||
1281 | return 0; | |
1282 | } | |
1da177e4 | 1283 | |
67712d01 JD |
1284 | static int lm85_probe(struct i2c_client *client, |
1285 | const struct i2c_device_id *id) | |
1286 | { | |
1287 | struct lm85_data *data; | |
1288 | int err; | |
1289 | ||
1290 | data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL); | |
1291 | if (!data) | |
1292 | return -ENOMEM; | |
1293 | ||
1294 | i2c_set_clientdata(client, data); | |
1295 | data->type = id->driver_data; | |
9a61bf63 | 1296 | mutex_init(&data->update_lock); |
1da177e4 | 1297 | |
67712d01 JD |
1298 | /* Fill in the chip specific driver values */ |
1299 | switch (data->type) { | |
1300 | case adm1027: | |
1301 | case adt7463: | |
fa7a5797 | 1302 | case adt7468: |
67712d01 JD |
1303 | case emc6d100: |
1304 | case emc6d102: | |
f065a93e | 1305 | case emc6d103: |
67712d01 JD |
1306 | data->freq_map = adm1027_freq_map; |
1307 | break; | |
1308 | default: | |
1309 | data->freq_map = lm85_freq_map; | |
1310 | } | |
1da177e4 LT |
1311 | |
1312 | /* Set the VRM version */ | |
303760b4 | 1313 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1314 | |
1315 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1316 | lm85_init_client(client); |
1da177e4 LT |
1317 | |
1318 | /* Register sysfs hooks */ | |
e89e22b2 JD |
1319 | err = sysfs_create_group(&client->dev.kobj, &lm85_group); |
1320 | if (err) | |
f908037a | 1321 | goto err_kfree; |
1da177e4 | 1322 | |
79b92f2b | 1323 | /* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used |
9c516ef4 | 1324 | as a sixth digital VID input rather than an analog input. */ |
de248805 GR |
1325 | if (data->type == adt7463 || data->type == adt7468) { |
1326 | u8 vid = lm85_read_value(client, LM85_REG_VID); | |
1327 | if (vid & 0x80) | |
1328 | data->has_vid5 = true; | |
1329 | } | |
1330 | ||
1331 | if (!data->has_vid5) | |
e89e22b2 | 1332 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1333 | &lm85_group_in4))) |
f908037a | 1334 | goto err_remove_files; |
6b9aad2d JD |
1335 | |
1336 | /* The EMC6D100 has 3 additional voltage inputs */ | |
67712d01 | 1337 | if (data->type == emc6d100) |
e89e22b2 | 1338 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1339 | &lm85_group_in567))) |
f908037a | 1340 | goto err_remove_files; |
0501a381 | 1341 | |
e89e22b2 | 1342 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
1343 | if (IS_ERR(data->hwmon_dev)) { |
1344 | err = PTR_ERR(data->hwmon_dev); | |
f908037a | 1345 | goto err_remove_files; |
9c516ef4 JD |
1346 | } |
1347 | ||
1da177e4 LT |
1348 | return 0; |
1349 | ||
1350 | /* Error out and cleanup code */ | |
f908037a | 1351 | err_remove_files: |
e89e22b2 JD |
1352 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
1353 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); | |
67712d01 | 1354 | if (data->type == emc6d100) |
e89e22b2 | 1355 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); |
f908037a | 1356 | err_kfree: |
1da177e4 | 1357 | kfree(data); |
1da177e4 LT |
1358 | return err; |
1359 | } | |
1360 | ||
67712d01 | 1361 | static int lm85_remove(struct i2c_client *client) |
1da177e4 | 1362 | { |
943b0830 | 1363 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1364 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1365 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1366 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1367 | if (data->type == emc6d100) | |
1368 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
943b0830 | 1369 | kfree(data); |
1da177e4 LT |
1370 | return 0; |
1371 | } | |
1372 | ||
1373 | ||
d8d20615 | 1374 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1375 | { |
1376 | int res; | |
1377 | ||
1378 | /* What size location is it? */ | |
1f44809a JD |
1379 | switch (reg) { |
1380 | case LM85_REG_FAN(0): /* Read WORD data */ | |
1381 | case LM85_REG_FAN(1): | |
1382 | case LM85_REG_FAN(2): | |
1383 | case LM85_REG_FAN(3): | |
1384 | case LM85_REG_FAN_MIN(0): | |
1385 | case LM85_REG_FAN_MIN(1): | |
1386 | case LM85_REG_FAN_MIN(2): | |
1387 | case LM85_REG_FAN_MIN(3): | |
1388 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
1389 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
1390 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
1391 | break; | |
1da177e4 LT |
1392 | default: /* Read BYTE data */ |
1393 | res = i2c_smbus_read_byte_data(client, reg); | |
1f44809a | 1394 | break; |
1da177e4 LT |
1395 | } |
1396 | ||
1f44809a | 1397 | return res; |
1da177e4 LT |
1398 | } |
1399 | ||
e89e22b2 | 1400 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 | 1401 | { |
1f44809a JD |
1402 | switch (reg) { |
1403 | case LM85_REG_FAN(0): /* Write WORD data */ | |
1404 | case LM85_REG_FAN(1): | |
1405 | case LM85_REG_FAN(2): | |
1406 | case LM85_REG_FAN(3): | |
1407 | case LM85_REG_FAN_MIN(0): | |
1408 | case LM85_REG_FAN_MIN(1): | |
1409 | case LM85_REG_FAN_MIN(2): | |
1410 | case LM85_REG_FAN_MIN(3): | |
1da177e4 | 1411 | /* NOTE: ALARM is read only, so not included here */ |
e89e22b2 JD |
1412 | i2c_smbus_write_byte_data(client, reg, value & 0xff); |
1413 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
1f44809a | 1414 | break; |
1da177e4 | 1415 | default: /* Write BYTE data */ |
e89e22b2 | 1416 | i2c_smbus_write_byte_data(client, reg, value); |
1f44809a | 1417 | break; |
1da177e4 | 1418 | } |
1da177e4 LT |
1419 | } |
1420 | ||
1da177e4 LT |
1421 | static struct lm85_data *lm85_update_device(struct device *dev) |
1422 | { | |
1423 | struct i2c_client *client = to_i2c_client(dev); | |
1424 | struct lm85_data *data = i2c_get_clientdata(client); | |
1425 | int i; | |
1426 | ||
9a61bf63 | 1427 | mutex_lock(&data->update_lock); |
1da177e4 | 1428 | |
1f44809a JD |
1429 | if (!data->valid || |
1430 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { | |
1da177e4 LT |
1431 | /* Things that change quickly */ |
1432 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1f44809a | 1433 | |
1da177e4 LT |
1434 | /* Have to read extended bits first to "freeze" the |
1435 | * more significant bits that are read later. | |
5a4d3ef3 JD |
1436 | * There are 2 additional resolution bits per channel and we |
1437 | * have room for 4, so we shift them to the left. | |
1da177e4 | 1438 | */ |
79b92f2b DW |
1439 | if (data->type == adm1027 || data->type == adt7463 || |
1440 | data->type == adt7468) { | |
1da177e4 LT |
1441 | int ext1 = lm85_read_value(client, |
1442 | ADM1027_REG_EXTEND_ADC1); | |
1443 | int ext2 = lm85_read_value(client, | |
1444 | ADM1027_REG_EXTEND_ADC2); | |
1445 | int val = (ext1 << 8) + ext2; | |
1446 | ||
1f44809a JD |
1447 | for (i = 0; i <= 4; i++) |
1448 | data->in_ext[i] = | |
1449 | ((val >> (i * 2)) & 0x03) << 2; | |
1da177e4 | 1450 | |
1f44809a JD |
1451 | for (i = 0; i <= 2; i++) |
1452 | data->temp_ext[i] = | |
1453 | (val >> ((i + 4) * 2)) & 0x0c; | |
1da177e4 LT |
1454 | } |
1455 | ||
9c516ef4 JD |
1456 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1457 | ||
1458 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1459 | data->in[i] = |
1460 | lm85_read_value(client, LM85_REG_IN(i)); | |
e89e22b2 JD |
1461 | data->fan[i] = |
1462 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1da177e4 LT |
1463 | } |
1464 | ||
de248805 GR |
1465 | if (!data->has_vid5) |
1466 | data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); | |
9c516ef4 | 1467 | |
79b92f2b DW |
1468 | if (data->type == adt7468) |
1469 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); | |
1470 | ||
1da177e4 LT |
1471 | for (i = 0; i <= 2; ++i) { |
1472 | data->temp[i] = | |
1473 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1da177e4 LT |
1474 | data->pwm[i] = |
1475 | lm85_read_value(client, LM85_REG_PWM(i)); | |
79b92f2b DW |
1476 | |
1477 | if (IS_ADT7468_OFF64(data)) | |
1478 | data->temp[i] -= 64; | |
1da177e4 LT |
1479 | } |
1480 | ||
1481 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1482 | ||
dd1ac538 | 1483 | if (data->type == emc6d100) { |
1da177e4 LT |
1484 | /* Three more voltage sensors */ |
1485 | for (i = 5; i <= 7; ++i) { | |
1f44809a JD |
1486 | data->in[i] = lm85_read_value(client, |
1487 | EMC6D100_REG_IN(i)); | |
1da177e4 LT |
1488 | } |
1489 | /* More alarm bits */ | |
1f44809a JD |
1490 | data->alarms |= lm85_read_value(client, |
1491 | EMC6D100_REG_ALARM3) << 16; | |
f065a93e | 1492 | } else if (data->type == emc6d102 || data->type == emc6d103) { |
1da177e4 LT |
1493 | /* Have to read LSB bits after the MSB ones because |
1494 | the reading of the MSB bits has frozen the | |
1495 | LSBs (backward from the ADM1027). | |
1496 | */ | |
1497 | int ext1 = lm85_read_value(client, | |
1498 | EMC6D102_REG_EXTEND_ADC1); | |
1499 | int ext2 = lm85_read_value(client, | |
1500 | EMC6D102_REG_EXTEND_ADC2); | |
1501 | int ext3 = lm85_read_value(client, | |
1502 | EMC6D102_REG_EXTEND_ADC3); | |
1503 | int ext4 = lm85_read_value(client, | |
1504 | EMC6D102_REG_EXTEND_ADC4); | |
1505 | data->in_ext[0] = ext3 & 0x0f; | |
1506 | data->in_ext[1] = ext4 & 0x0f; | |
e89e22b2 JD |
1507 | data->in_ext[2] = ext4 >> 4; |
1508 | data->in_ext[3] = ext3 >> 4; | |
1509 | data->in_ext[4] = ext2 >> 4; | |
1da177e4 LT |
1510 | |
1511 | data->temp_ext[0] = ext1 & 0x0f; | |
1512 | data->temp_ext[1] = ext2 & 0x0f; | |
e89e22b2 | 1513 | data->temp_ext[2] = ext1 >> 4; |
1da177e4 LT |
1514 | } |
1515 | ||
1f44809a JD |
1516 | data->last_reading = jiffies; |
1517 | } /* last_reading */ | |
1da177e4 | 1518 | |
1f44809a JD |
1519 | if (!data->valid || |
1520 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
1da177e4 LT |
1521 | /* Things that don't change often */ |
1522 | dev_dbg(&client->dev, "Reading config values\n"); | |
1523 | ||
9c516ef4 | 1524 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1525 | data->in_min[i] = |
1526 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1527 | data->in_max[i] = | |
1528 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
e89e22b2 JD |
1529 | data->fan_min[i] = |
1530 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1da177e4 LT |
1531 | } |
1532 | ||
de248805 | 1533 | if (!data->has_vid5) { |
9c516ef4 JD |
1534 | data->in_min[4] = lm85_read_value(client, |
1535 | LM85_REG_IN_MIN(4)); | |
1536 | data->in_max[4] = lm85_read_value(client, | |
1537 | LM85_REG_IN_MAX(4)); | |
1538 | } | |
1539 | ||
1f44809a | 1540 | if (data->type == emc6d100) { |
1da177e4 | 1541 | for (i = 5; i <= 7; ++i) { |
1f44809a JD |
1542 | data->in_min[i] = lm85_read_value(client, |
1543 | EMC6D100_REG_IN_MIN(i)); | |
1544 | data->in_max[i] = lm85_read_value(client, | |
1545 | EMC6D100_REG_IN_MAX(i)); | |
1da177e4 LT |
1546 | } |
1547 | } | |
1548 | ||
1da177e4 | 1549 | for (i = 0; i <= 2; ++i) { |
e89e22b2 JD |
1550 | int val; |
1551 | ||
1da177e4 LT |
1552 | data->temp_min[i] = |
1553 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1554 | data->temp_max[i] = | |
1555 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1da177e4 | 1556 | |
1da177e4 LT |
1557 | data->autofan[i].config = |
1558 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1559 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
34e7dc6c | 1560 | data->pwm_freq[i] = val & 0x07; |
e89e22b2 | 1561 | data->zone[i].range = val >> 4; |
1da177e4 LT |
1562 | data->autofan[i].min_pwm = |
1563 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1564 | data->zone[i].limit = | |
1565 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1566 | data->zone[i].critical = | |
1567 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
79b92f2b DW |
1568 | |
1569 | if (IS_ADT7468_OFF64(data)) { | |
1570 | data->temp_min[i] -= 64; | |
1571 | data->temp_max[i] -= 64; | |
1572 | data->zone[i].limit -= 64; | |
1573 | data->zone[i].critical -= 64; | |
1574 | } | |
1da177e4 LT |
1575 | } |
1576 | ||
1577 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1f44809a JD |
1578 | data->autofan[0].min_off = (i & 0x20) != 0; |
1579 | data->autofan[1].min_off = (i & 0x40) != 0; | |
1580 | data->autofan[2].min_off = (i & 0x80) != 0; | |
1da177e4 LT |
1581 | |
1582 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
e89e22b2 | 1583 | data->zone[0].hyst = i >> 4; |
1f44809a | 1584 | data->zone[1].hyst = i & 0x0f; |
1da177e4 LT |
1585 | |
1586 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
e89e22b2 | 1587 | data->zone[2].hyst = i >> 4; |
1da177e4 | 1588 | |
1da177e4 | 1589 | data->last_config = jiffies; |
1f44809a | 1590 | } /* last_config */ |
1da177e4 LT |
1591 | |
1592 | data->valid = 1; | |
1593 | ||
9a61bf63 | 1594 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1595 | |
1596 | return data; | |
1597 | } | |
1598 | ||
1599 | ||
1600 | static int __init sm_lm85_init(void) | |
1601 | { | |
1602 | return i2c_add_driver(&lm85_driver); | |
1603 | } | |
1604 | ||
1f44809a | 1605 | static void __exit sm_lm85_exit(void) |
1da177e4 LT |
1606 | { |
1607 | i2c_del_driver(&lm85_driver); | |
1608 | } | |
1609 | ||
1da177e4 | 1610 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1611 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1612 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1613 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 LT |
1614 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |
1615 | ||
1616 | module_init(sm_lm85_init); | |
1617 | module_exit(sm_lm85_exit); |