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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> | |
8 | ||
9 | Chip details at <http://www.national.com/ds/LM/LM85.pdf> | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
25 | ||
1da177e4 LT |
26 | #include <linux/module.h> |
27 | #include <linux/init.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/jiffies.h> | |
30 | #include <linux/i2c.h> | |
943b0830 | 31 | #include <linux/hwmon.h> |
303760b4 | 32 | #include <linux/hwmon-vid.h> |
b353a487 | 33 | #include <linux/hwmon-sysfs.h> |
943b0830 | 34 | #include <linux/err.h> |
9a61bf63 | 35 | #include <linux/mutex.h> |
1da177e4 LT |
36 | |
37 | /* Addresses to scan */ | |
25e9c86d | 38 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 LT |
39 | |
40 | /* Insmod parameters */ | |
f4b50261 | 41 | I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102); |
1da177e4 LT |
42 | |
43 | /* The LM85 registers */ | |
44 | ||
45 | #define LM85_REG_IN(nr) (0x20 + (nr)) | |
46 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
47 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
48 | ||
49 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) | |
50 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
51 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
52 | ||
53 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
1f44809a JD |
54 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
55 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) | |
1da177e4 LT |
56 | |
57 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
58 | ||
1da177e4 LT |
59 | #define LM85_REG_COMPANY 0x3e |
60 | #define LM85_REG_VERSTEP 0x3f | |
61 | /* These are the recognized values for the above regs */ | |
1da177e4 LT |
62 | #define LM85_COMPANY_NATIONAL 0x01 |
63 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
1f44809a | 64 | #define LM85_COMPANY_SMSC 0x5c |
1da177e4 LT |
65 | #define LM85_VERSTEP_VMASK 0xf0 |
66 | #define LM85_VERSTEP_GENERIC 0x60 | |
67 | #define LM85_VERSTEP_LM85C 0x60 | |
68 | #define LM85_VERSTEP_LM85B 0x62 | |
69 | #define LM85_VERSTEP_ADM1027 0x60 | |
70 | #define LM85_VERSTEP_ADT7463 0x62 | |
71 | #define LM85_VERSTEP_ADT7463C 0x6A | |
72 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
73 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
74 | #define LM85_VERSTEP_EMC6D102 0x65 | |
75 | ||
76 | #define LM85_REG_CONFIG 0x40 | |
77 | ||
78 | #define LM85_REG_ALARM1 0x41 | |
79 | #define LM85_REG_ALARM2 0x42 | |
80 | ||
81 | #define LM85_REG_VID 0x43 | |
82 | ||
83 | /* Automated FAN control */ | |
84 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
85 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
86 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
1da177e4 LT |
87 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) |
88 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
89 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
90 | #define LM85_REG_AFAN_HYST1 0x6d | |
91 | #define LM85_REG_AFAN_HYST2 0x6e | |
92 | ||
1da177e4 LT |
93 | #define ADM1027_REG_EXTEND_ADC1 0x76 |
94 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
1da177e4 LT |
95 | |
96 | #define EMC6D100_REG_ALARM3 0x7d | |
97 | /* IN5, IN6 and IN7 */ | |
1f44809a JD |
98 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
99 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) | |
100 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) | |
1da177e4 LT |
101 | #define EMC6D102_REG_EXTEND_ADC1 0x85 |
102 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
103 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
104 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
105 | ||
1da177e4 | 106 | |
1f44809a | 107 | /* Conversions. Rounding and limit checking is only done on the TO_REG |
1da177e4 LT |
108 | variants. Note that you should be a bit careful with which arguments |
109 | these macros are called: arguments may be evaluated more than once. | |
110 | */ | |
111 | ||
112 | /* IN are scaled acording to built-in resistors */ | |
e89e22b2 | 113 | static const int lm85_scaling[] = { /* .001 Volts */ |
1f44809a JD |
114 | 2500, 2250, 3300, 5000, 12000, |
115 | 3300, 1500, 1800 /*EMC6D100*/ | |
116 | }; | |
117 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) | |
1da177e4 | 118 | |
1f44809a JD |
119 | #define INS_TO_REG(n, val) \ |
120 | SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255) | |
1da177e4 | 121 | |
1f44809a | 122 | #define INSEXT_FROM_REG(n, val, ext) \ |
5a4d3ef3 | 123 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
1da177e4 | 124 | |
1f44809a | 125 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
126 | |
127 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
128 | static inline u16 FAN_TO_REG(unsigned long val) |
129 | { | |
130 | if (!val) | |
131 | return 0xffff; | |
132 | return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); | |
133 | } | |
1f44809a JD |
134 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
135 | 5400000 / (val)) | |
1da177e4 LT |
136 | |
137 | /* Temperature is reported in .001 degC increments */ | |
138 | #define TEMP_TO_REG(val) \ | |
1f44809a JD |
139 | SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127) |
140 | #define TEMPEXT_FROM_REG(val, ext) \ | |
5a4d3ef3 JD |
141 | SCALE(((val) << 4) + (ext), 16, 1000) |
142 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 143 | |
1f44809a | 144 | #define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255) |
1da177e4 LT |
145 | #define PWM_FROM_REG(val) (val) |
146 | ||
147 | ||
148 | /* ZONEs have the following parameters: | |
149 | * Limit (low) temp, 1. degC | |
150 | * Hysteresis (below limit), 1. degC (0-15) | |
151 | * Range of speed control, .1 degC (2-80) | |
152 | * Critical (high) temp, 1. degC | |
153 | * | |
154 | * FAN PWMs have the following parameters: | |
155 | * Reference Zone, 1, 2, 3, etc. | |
156 | * Spinup time, .05 sec | |
157 | * PWM value at limit/low temp, 1 count | |
158 | * PWM Frequency, 1. Hz | |
159 | * PWM is Min or OFF below limit, flag | |
160 | * Invert PWM output, flag | |
161 | * | |
162 | * Some chips filter the temp, others the fan. | |
163 | * Filter constant (or disabled) .1 seconds | |
164 | */ | |
165 | ||
166 | /* These are the zone temperature range encodings in .001 degree C */ | |
e89e22b2 | 167 | static const int lm85_range_map[] = { |
1f44809a JD |
168 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
169 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 | |
170 | }; | |
171 | ||
172 | static int RANGE_TO_REG(int range) | |
1da177e4 LT |
173 | { |
174 | int i; | |
175 | ||
d38b1497 | 176 | if (range >= lm85_range_map[15]) |
1f44809a | 177 | return 15; |
d38b1497 JD |
178 | |
179 | /* Find the closest match */ | |
180 | for (i = 14; i >= 0; --i) { | |
181 | if (range >= lm85_range_map[i]) { | |
182 | if ((lm85_range_map[i + 1] - range) < | |
183 | (range - lm85_range_map[i])) | |
184 | return i + 1; | |
185 | return i; | |
1da177e4 LT |
186 | } |
187 | } | |
d38b1497 JD |
188 | |
189 | return 0; | |
1da177e4 | 190 | } |
1f44809a | 191 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
1da177e4 | 192 | |
1da177e4 | 193 | /* These are the PWM frequency encodings */ |
e89e22b2 | 194 | static const int lm85_freq_map[] = { /* .1 Hz */ |
1f44809a JD |
195 | 100, 150, 230, 300, 380, 470, 620, 940 |
196 | }; | |
197 | ||
198 | static int FREQ_TO_REG(int freq) | |
1da177e4 LT |
199 | { |
200 | int i; | |
201 | ||
1f44809a JD |
202 | if (freq >= lm85_freq_map[7]) |
203 | return 7; | |
204 | for (i = 0; i < 7; ++i) | |
205 | if (freq <= lm85_freq_map[i]) | |
206 | break; | |
e89e22b2 | 207 | return i; |
1da177e4 | 208 | } |
1f44809a | 209 | #define FREQ_FROM_REG(val) lm85_freq_map[(val) & 0x07] |
1da177e4 LT |
210 | |
211 | /* Since we can't use strings, I'm abusing these numbers | |
212 | * to stand in for the following meanings: | |
213 | * 1 -- PWM responds to Zone 1 | |
214 | * 2 -- PWM responds to Zone 2 | |
215 | * 3 -- PWM responds to Zone 3 | |
216 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
217 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
218 | * 0 -- PWM is always at 0% (ie, off) | |
219 | * -1 -- PWM is always at 100% | |
220 | * -2 -- PWM responds to manual control | |
221 | */ | |
222 | ||
e89e22b2 JD |
223 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
224 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] | |
1da177e4 | 225 | |
1f44809a | 226 | static int ZONE_TO_REG(int zone) |
1da177e4 LT |
227 | { |
228 | int i; | |
229 | ||
1f44809a JD |
230 | for (i = 0; i <= 7; ++i) |
231 | if (zone == lm85_zone_map[i]) | |
232 | break; | |
233 | if (i > 7) /* Not found. */ | |
1da177e4 | 234 | i = 3; /* Always 100% */ |
e89e22b2 | 235 | return i << 5; |
1da177e4 LT |
236 | } |
237 | ||
1f44809a JD |
238 | #define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15) |
239 | #define HYST_FROM_REG(val) ((val) * 1000) | |
1da177e4 | 240 | |
1da177e4 LT |
241 | /* Chip sampling rates |
242 | * | |
243 | * Some sensors are not updated more frequently than once per second | |
244 | * so it doesn't make sense to read them more often than that. | |
245 | * We cache the results and return the saved data if the driver | |
246 | * is called again before a second has elapsed. | |
247 | * | |
248 | * Also, there is significant configuration data for this chip | |
249 | * given the automatic PWM fan control that is possible. There | |
250 | * are about 47 bytes of config data to only 22 bytes of actual | |
251 | * readings. So, we keep the config data up to date in the cache | |
252 | * when it is written and only sample it once every 1 *minute* | |
253 | */ | |
254 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
255 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
256 | ||
1da177e4 LT |
257 | /* LM85 can automatically adjust fan speeds based on temperature |
258 | * This structure encapsulates an entire Zone config. There are | |
259 | * three zones (one for each temperature input) on the lm85 | |
260 | */ | |
261 | struct lm85_zone { | |
262 | s8 limit; /* Low temp limit */ | |
263 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
264 | u8 range; /* Temp range, encoded */ | |
265 | s8 critical; /* "All fans ON" temp limit */ | |
1f44809a | 266 | u8 off_desired; /* Actual "off" temperature specified. Preserved |
1da177e4 LT |
267 | * to prevent "drift" as other autofan control |
268 | * values change. | |
269 | */ | |
1f44809a | 270 | u8 max_desired; /* Actual "max" temperature specified. Preserved |
1da177e4 LT |
271 | * to prevent "drift" as other autofan control |
272 | * values change. | |
273 | */ | |
274 | }; | |
275 | ||
276 | struct lm85_autofan { | |
277 | u8 config; /* Register value */ | |
278 | u8 freq; /* PWM frequency, encoded */ | |
279 | u8 min_pwm; /* Minimum PWM value, encoded */ | |
280 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
281 | }; | |
282 | ||
ed6bafbf JD |
283 | /* For each registered chip, we need to keep some data in memory. |
284 | The structure is dynamically allocated. */ | |
1da177e4 LT |
285 | struct lm85_data { |
286 | struct i2c_client client; | |
1beeffe4 | 287 | struct device *hwmon_dev; |
1da177e4 LT |
288 | enum chips type; |
289 | ||
9a61bf63 | 290 | struct mutex update_lock; |
1da177e4 LT |
291 | int valid; /* !=0 if following fields are valid */ |
292 | unsigned long last_reading; /* In jiffies */ | |
293 | unsigned long last_config; /* In jiffies */ | |
294 | ||
295 | u8 in[8]; /* Register value */ | |
296 | u8 in_max[8]; /* Register value */ | |
297 | u8 in_min[8]; /* Register value */ | |
298 | s8 temp[3]; /* Register value */ | |
299 | s8 temp_min[3]; /* Register value */ | |
300 | s8 temp_max[3]; /* Register value */ | |
1da177e4 LT |
301 | u16 fan[4]; /* Register value */ |
302 | u16 fan_min[4]; /* Register value */ | |
303 | u8 pwm[3]; /* Register value */ | |
1da177e4 LT |
304 | u8 temp_ext[3]; /* Decoded values */ |
305 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
306 | u8 vid; /* Register value */ |
307 | u8 vrm; /* VRM version */ | |
1da177e4 LT |
308 | u32 alarms; /* Register encoding, combined */ |
309 | struct lm85_autofan autofan[3]; | |
310 | struct lm85_zone zone[3]; | |
311 | }; | |
312 | ||
313 | static int lm85_attach_adapter(struct i2c_adapter *adapter); | |
314 | static int lm85_detect(struct i2c_adapter *adapter, int address, | |
315 | int kind); | |
316 | static int lm85_detach_client(struct i2c_client *client); | |
317 | ||
f6c27fc1 | 318 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
e89e22b2 | 319 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value); |
1da177e4 LT |
320 | static struct lm85_data *lm85_update_device(struct device *dev); |
321 | static void lm85_init_client(struct i2c_client *client); | |
322 | ||
323 | ||
324 | static struct i2c_driver lm85_driver = { | |
cdaf7934 | 325 | .driver = { |
cdaf7934 LR |
326 | .name = "lm85", |
327 | }, | |
1da177e4 LT |
328 | .attach_adapter = lm85_attach_adapter, |
329 | .detach_client = lm85_detach_client, | |
330 | }; | |
331 | ||
332 | ||
333 | /* 4 Fans */ | |
b353a487 JD |
334 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
335 | char *buf) | |
1da177e4 | 336 | { |
b353a487 | 337 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 338 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 339 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr])); |
1da177e4 | 340 | } |
b353a487 JD |
341 | |
342 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
343 | char *buf) | |
1da177e4 | 344 | { |
b353a487 | 345 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 346 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 347 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr])); |
1da177e4 | 348 | } |
b353a487 JD |
349 | |
350 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
351 | const char *buf, size_t count) | |
1da177e4 | 352 | { |
b353a487 | 353 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
354 | struct i2c_client *client = to_i2c_client(dev); |
355 | struct lm85_data *data = i2c_get_clientdata(client); | |
63f281a6 | 356 | unsigned long val = simple_strtoul(buf, NULL, 10); |
1da177e4 | 357 | |
9a61bf63 | 358 | mutex_lock(&data->update_lock); |
1da177e4 LT |
359 | data->fan_min[nr] = FAN_TO_REG(val); |
360 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 361 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
362 | return count; |
363 | } | |
364 | ||
365 | #define show_fan_offset(offset) \ | |
b353a487 JD |
366 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
367 | show_fan, NULL, offset - 1); \ | |
368 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
369 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
370 | |
371 | show_fan_offset(1); | |
372 | show_fan_offset(2); | |
373 | show_fan_offset(3); | |
374 | show_fan_offset(4); | |
375 | ||
376 | /* vid, vrm, alarms */ | |
377 | ||
1f44809a JD |
378 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, |
379 | char *buf) | |
1da177e4 LT |
380 | { |
381 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
382 | int vid; |
383 | ||
384 | if (data->type == adt7463 && (data->vid & 0x80)) { | |
385 | /* 6-pin VID (VRM 10) */ | |
386 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
387 | } else { | |
388 | /* 5-pin VID (VRM 9) */ | |
389 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
390 | } | |
391 | ||
392 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
393 | } |
394 | ||
395 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
396 | ||
1f44809a JD |
397 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, |
398 | char *buf) | |
1da177e4 | 399 | { |
90d6619a | 400 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
401 | return sprintf(buf, "%ld\n", (long) data->vrm); |
402 | } | |
403 | ||
1f44809a JD |
404 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, |
405 | const char *buf, size_t count) | |
1da177e4 | 406 | { |
8f74efe8 JD |
407 | struct lm85_data *data = dev_get_drvdata(dev); |
408 | data->vrm = simple_strtoul(buf, NULL, 10); | |
1da177e4 LT |
409 | return count; |
410 | } | |
411 | ||
412 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
413 | ||
1f44809a JD |
414 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute |
415 | *attr, char *buf) | |
1da177e4 LT |
416 | { |
417 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 418 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
419 | } |
420 | ||
421 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
422 | ||
bf76e9d3 JD |
423 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
424 | char *buf) | |
425 | { | |
426 | int nr = to_sensor_dev_attr(attr)->index; | |
427 | struct lm85_data *data = lm85_update_device(dev); | |
428 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
429 | } | |
430 | ||
431 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
432 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
433 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
434 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
435 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
436 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
437 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
438 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
439 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
440 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
441 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
442 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
443 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
444 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
445 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
446 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
447 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
448 | ||
1da177e4 LT |
449 | /* pwm */ |
450 | ||
b353a487 JD |
451 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
452 | char *buf) | |
1da177e4 | 453 | { |
b353a487 | 454 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 455 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 456 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); |
1da177e4 | 457 | } |
b353a487 JD |
458 | |
459 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
460 | const char *buf, size_t count) | |
1da177e4 | 461 | { |
b353a487 | 462 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
463 | struct i2c_client *client = to_i2c_client(dev); |
464 | struct lm85_data *data = i2c_get_clientdata(client); | |
465 | long val = simple_strtol(buf, NULL, 10); | |
466 | ||
9a61bf63 | 467 | mutex_lock(&data->update_lock); |
1da177e4 LT |
468 | data->pwm[nr] = PWM_TO_REG(val); |
469 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 470 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
471 | return count; |
472 | } | |
b353a487 JD |
473 | |
474 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
475 | *attr, char *buf) | |
1da177e4 | 476 | { |
b353a487 | 477 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 478 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 479 | int pwm_zone, enable; |
1da177e4 LT |
480 | |
481 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
482 | switch (pwm_zone) { |
483 | case -1: /* PWM is always at 100% */ | |
484 | enable = 0; | |
485 | break; | |
486 | case 0: /* PWM is always at 0% */ | |
487 | case -2: /* PWM responds to manual control */ | |
488 | enable = 1; | |
489 | break; | |
490 | default: /* PWM in automatic mode */ | |
491 | enable = 2; | |
492 | } | |
493 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
494 | } |
495 | ||
455f791e JD |
496 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
497 | *attr, const char *buf, size_t count) | |
498 | { | |
499 | int nr = to_sensor_dev_attr(attr)->index; | |
500 | struct i2c_client *client = to_i2c_client(dev); | |
501 | struct lm85_data *data = i2c_get_clientdata(client); | |
502 | long val = simple_strtol(buf, NULL, 10); | |
503 | u8 config; | |
504 | ||
505 | switch (val) { | |
506 | case 0: | |
507 | config = 3; | |
508 | break; | |
509 | case 1: | |
510 | config = 7; | |
511 | break; | |
512 | case 2: | |
513 | /* Here we have to choose arbitrarily one of the 5 possible | |
514 | configurations; I go for the safest */ | |
515 | config = 6; | |
516 | break; | |
517 | default: | |
518 | return -EINVAL; | |
519 | } | |
520 | ||
521 | mutex_lock(&data->update_lock); | |
522 | data->autofan[nr].config = lm85_read_value(client, | |
523 | LM85_REG_AFAN_CONFIG(nr)); | |
524 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
525 | | (config << 5); | |
526 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
527 | data->autofan[nr].config); | |
528 | mutex_unlock(&data->update_lock); | |
529 | return count; | |
530 | } | |
531 | ||
1da177e4 | 532 | #define show_pwm_reg(offset) \ |
b353a487 JD |
533 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
534 | show_pwm, set_pwm, offset - 1); \ | |
455f791e JD |
535 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
536 | show_pwm_enable, set_pwm_enable, offset - 1) | |
1da177e4 LT |
537 | |
538 | show_pwm_reg(1); | |
539 | show_pwm_reg(2); | |
540 | show_pwm_reg(3); | |
541 | ||
542 | /* Voltages */ | |
543 | ||
b353a487 JD |
544 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
545 | char *buf) | |
1da177e4 | 546 | { |
b353a487 | 547 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 548 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
549 | return sprintf(buf, "%d\n", INSEXT_FROM_REG(nr, data->in[nr], |
550 | data->in_ext[nr])); | |
1da177e4 | 551 | } |
b353a487 | 552 | |
1f44809a | 553 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
b353a487 | 554 | char *buf) |
1da177e4 | 555 | { |
b353a487 | 556 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 557 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 558 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); |
1da177e4 | 559 | } |
b353a487 JD |
560 | |
561 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
562 | const char *buf, size_t count) | |
1da177e4 | 563 | { |
b353a487 | 564 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
565 | struct i2c_client *client = to_i2c_client(dev); |
566 | struct lm85_data *data = i2c_get_clientdata(client); | |
567 | long val = simple_strtol(buf, NULL, 10); | |
568 | ||
9a61bf63 | 569 | mutex_lock(&data->update_lock); |
1da177e4 LT |
570 | data->in_min[nr] = INS_TO_REG(nr, val); |
571 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 572 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
573 | return count; |
574 | } | |
b353a487 JD |
575 | |
576 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
577 | char *buf) | |
1da177e4 | 578 | { |
b353a487 | 579 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 580 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 581 | return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); |
1da177e4 | 582 | } |
b353a487 JD |
583 | |
584 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
585 | const char *buf, size_t count) | |
1da177e4 | 586 | { |
b353a487 | 587 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
588 | struct i2c_client *client = to_i2c_client(dev); |
589 | struct lm85_data *data = i2c_get_clientdata(client); | |
590 | long val = simple_strtol(buf, NULL, 10); | |
591 | ||
9a61bf63 | 592 | mutex_lock(&data->update_lock); |
1da177e4 LT |
593 | data->in_max[nr] = INS_TO_REG(nr, val); |
594 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 595 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
596 | return count; |
597 | } | |
b353a487 | 598 | |
1da177e4 | 599 | #define show_in_reg(offset) \ |
b353a487 JD |
600 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
601 | show_in, NULL, offset); \ | |
602 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
603 | show_in_min, set_in_min, offset); \ | |
604 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
605 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
606 | |
607 | show_in_reg(0); | |
608 | show_in_reg(1); | |
609 | show_in_reg(2); | |
610 | show_in_reg(3); | |
611 | show_in_reg(4); | |
6b9aad2d JD |
612 | show_in_reg(5); |
613 | show_in_reg(6); | |
614 | show_in_reg(7); | |
1da177e4 LT |
615 | |
616 | /* Temps */ | |
617 | ||
b353a487 JD |
618 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
619 | char *buf) | |
1da177e4 | 620 | { |
b353a487 | 621 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 622 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a JD |
623 | return sprintf(buf, "%d\n", TEMPEXT_FROM_REG(data->temp[nr], |
624 | data->temp_ext[nr])); | |
1da177e4 | 625 | } |
b353a487 JD |
626 | |
627 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
628 | char *buf) | |
1da177e4 | 629 | { |
b353a487 | 630 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 631 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 632 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); |
1da177e4 | 633 | } |
b353a487 JD |
634 | |
635 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
636 | const char *buf, size_t count) | |
1da177e4 | 637 | { |
b353a487 | 638 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
639 | struct i2c_client *client = to_i2c_client(dev); |
640 | struct lm85_data *data = i2c_get_clientdata(client); | |
641 | long val = simple_strtol(buf, NULL, 10); | |
642 | ||
9a61bf63 | 643 | mutex_lock(&data->update_lock); |
1da177e4 LT |
644 | data->temp_min[nr] = TEMP_TO_REG(val); |
645 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 646 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
647 | return count; |
648 | } | |
b353a487 JD |
649 | |
650 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
651 | char *buf) | |
1da177e4 | 652 | { |
b353a487 | 653 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 654 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 655 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); |
1da177e4 | 656 | } |
b353a487 JD |
657 | |
658 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
659 | const char *buf, size_t count) | |
1da177e4 | 660 | { |
b353a487 | 661 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
662 | struct i2c_client *client = to_i2c_client(dev); |
663 | struct lm85_data *data = i2c_get_clientdata(client); | |
1f44809a | 664 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 665 | |
9a61bf63 | 666 | mutex_lock(&data->update_lock); |
1da177e4 LT |
667 | data->temp_max[nr] = TEMP_TO_REG(val); |
668 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 669 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
670 | return count; |
671 | } | |
b353a487 | 672 | |
1da177e4 | 673 | #define show_temp_reg(offset) \ |
b353a487 JD |
674 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
675 | show_temp, NULL, offset - 1); \ | |
676 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
677 | show_temp_min, set_temp_min, offset - 1); \ | |
678 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
679 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
680 | |
681 | show_temp_reg(1); | |
682 | show_temp_reg(2); | |
683 | show_temp_reg(3); | |
684 | ||
685 | ||
686 | /* Automatic PWM control */ | |
687 | ||
b353a487 JD |
688 | static ssize_t show_pwm_auto_channels(struct device *dev, |
689 | struct device_attribute *attr, 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", ZONE_FROM_REG(data->autofan[nr].config)); |
1da177e4 | 694 | } |
b353a487 JD |
695 | |
696 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
697 | struct device_attribute *attr, 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); | |
1f44809a | 702 | long val = simple_strtol(buf, NULL, 10); |
1da177e4 | 703 | |
9a61bf63 | 704 | mutex_lock(&data->update_lock); |
1da177e4 | 705 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1f44809a | 706 | | ZONE_TO_REG(val); |
1da177e4 LT |
707 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
708 | data->autofan[nr].config); | |
9a61bf63 | 709 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
710 | return count; |
711 | } | |
b353a487 JD |
712 | |
713 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
714 | struct device_attribute *attr, char *buf) | |
1da177e4 | 715 | { |
b353a487 | 716 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 717 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 718 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1da177e4 | 719 | } |
b353a487 JD |
720 | |
721 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
722 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 723 | { |
b353a487 | 724 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
725 | struct i2c_client *client = to_i2c_client(dev); |
726 | struct lm85_data *data = i2c_get_clientdata(client); | |
727 | long val = simple_strtol(buf, NULL, 10); | |
728 | ||
9a61bf63 | 729 | mutex_lock(&data->update_lock); |
1da177e4 LT |
730 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
731 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
732 | data->autofan[nr].min_pwm); | |
9a61bf63 | 733 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
734 | return count; |
735 | } | |
b353a487 JD |
736 | |
737 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
738 | struct device_attribute *attr, char *buf) | |
1da177e4 | 739 | { |
b353a487 | 740 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 741 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 742 | return sprintf(buf, "%d\n", data->autofan[nr].min_off); |
1da177e4 | 743 | } |
b353a487 JD |
744 | |
745 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
746 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 747 | { |
b353a487 | 748 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
749 | struct i2c_client *client = to_i2c_client(dev); |
750 | struct lm85_data *data = i2c_get_clientdata(client); | |
751 | long val = simple_strtol(buf, NULL, 10); | |
7133e56f | 752 | u8 tmp; |
1da177e4 | 753 | |
9a61bf63 | 754 | mutex_lock(&data->update_lock); |
1da177e4 | 755 | data->autofan[nr].min_off = val; |
7133e56f JD |
756 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
757 | tmp &= ~(0x20 << nr); | |
758 | if (data->autofan[nr].min_off) | |
759 | tmp |= 0x20 << nr; | |
760 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, tmp); | |
9a61bf63 | 761 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
762 | return count; |
763 | } | |
b353a487 JD |
764 | |
765 | static ssize_t show_pwm_auto_pwm_freq(struct device *dev, | |
766 | struct device_attribute *attr, char *buf) | |
1da177e4 | 767 | { |
b353a487 | 768 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 769 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 770 | return sprintf(buf, "%d\n", FREQ_FROM_REG(data->autofan[nr].freq)); |
1da177e4 | 771 | } |
b353a487 JD |
772 | |
773 | static ssize_t set_pwm_auto_pwm_freq(struct device *dev, | |
774 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 775 | { |
b353a487 | 776 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
777 | struct i2c_client *client = to_i2c_client(dev); |
778 | struct lm85_data *data = i2c_get_clientdata(client); | |
779 | long val = simple_strtol(buf, NULL, 10); | |
780 | ||
9a61bf63 | 781 | mutex_lock(&data->update_lock); |
1da177e4 LT |
782 | data->autofan[nr].freq = FREQ_TO_REG(val); |
783 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
784 | (data->zone[nr].range << 4) | |
1f44809a | 785 | | data->autofan[nr].freq); |
9a61bf63 | 786 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
787 | return count; |
788 | } | |
b353a487 | 789 | |
1da177e4 | 790 | #define pwm_auto(offset) \ |
b353a487 JD |
791 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
792 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
793 | set_pwm_auto_channels, offset - 1); \ | |
794 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
795 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
796 | set_pwm_auto_pwm_min, offset - 1); \ | |
797 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
798 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
799 | set_pwm_auto_pwm_minctl, offset - 1); \ | |
800 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq, \ | |
801 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq, \ | |
802 | set_pwm_auto_pwm_freq, offset - 1); | |
803 | ||
1da177e4 LT |
804 | pwm_auto(1); |
805 | pwm_auto(2); | |
806 | pwm_auto(3); | |
807 | ||
808 | /* Temperature settings for automatic PWM control */ | |
809 | ||
b353a487 JD |
810 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
811 | struct device_attribute *attr, char *buf) | |
1da177e4 | 812 | { |
b353a487 | 813 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 814 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 815 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) - |
1da177e4 LT |
816 | HYST_FROM_REG(data->zone[nr].hyst)); |
817 | } | |
b353a487 JD |
818 | |
819 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
820 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 821 | { |
b353a487 | 822 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
823 | struct i2c_client *client = to_i2c_client(dev); |
824 | struct lm85_data *data = i2c_get_clientdata(client); | |
825 | int min; | |
826 | long val = simple_strtol(buf, NULL, 10); | |
827 | ||
9a61bf63 | 828 | mutex_lock(&data->update_lock); |
1da177e4 LT |
829 | min = TEMP_FROM_REG(data->zone[nr].limit); |
830 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
831 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
1f44809a | 832 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
833 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
834 | (data->zone[0].hyst << 4) | |
1f44809a | 835 | | data->zone[1].hyst); |
1da177e4 LT |
836 | } else { |
837 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 838 | (data->zone[2].hyst << 4)); |
1da177e4 | 839 | } |
9a61bf63 | 840 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
841 | return count; |
842 | } | |
b353a487 JD |
843 | |
844 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
845 | struct device_attribute *attr, char *buf) | |
1da177e4 | 846 | { |
b353a487 | 847 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 848 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 849 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit)); |
1da177e4 | 850 | } |
b353a487 JD |
851 | |
852 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
853 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 854 | { |
b353a487 | 855 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
856 | struct i2c_client *client = to_i2c_client(dev); |
857 | struct lm85_data *data = i2c_get_clientdata(client); | |
858 | long val = simple_strtol(buf, NULL, 10); | |
859 | ||
9a61bf63 | 860 | mutex_lock(&data->update_lock); |
1da177e4 LT |
861 | data->zone[nr].limit = TEMP_TO_REG(val); |
862 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
863 | data->zone[nr].limit); | |
864 | ||
865 | /* Update temp_auto_max and temp_auto_range */ | |
866 | data->zone[nr].range = RANGE_TO_REG( | |
867 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
868 | TEMP_FROM_REG(data->zone[nr].limit)); | |
869 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
870 | ((data->zone[nr].range & 0x0f) << 4) | |
871 | | (data->autofan[nr].freq & 0x07)); | |
872 | ||
873 | /* Update temp_auto_hyst and temp_auto_off */ | |
874 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
875 | data->zone[nr].limit) - TEMP_FROM_REG( | |
876 | data->zone[nr].off_desired)); | |
1f44809a | 877 | if (nr == 0 || nr == 1) { |
1da177e4 LT |
878 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
879 | (data->zone[0].hyst << 4) | |
1f44809a | 880 | | data->zone[1].hyst); |
1da177e4 LT |
881 | } else { |
882 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
1f44809a | 883 | (data->zone[2].hyst << 4)); |
1da177e4 | 884 | } |
9a61bf63 | 885 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
886 | return count; |
887 | } | |
b353a487 JD |
888 | |
889 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
890 | struct device_attribute *attr, char *buf) | |
1da177e4 | 891 | { |
b353a487 | 892 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 893 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 894 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].limit) + |
1da177e4 LT |
895 | RANGE_FROM_REG(data->zone[nr].range)); |
896 | } | |
b353a487 JD |
897 | |
898 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
899 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 900 | { |
b353a487 | 901 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
902 | struct i2c_client *client = to_i2c_client(dev); |
903 | struct lm85_data *data = i2c_get_clientdata(client); | |
904 | int min; | |
905 | long val = simple_strtol(buf, NULL, 10); | |
906 | ||
9a61bf63 | 907 | mutex_lock(&data->update_lock); |
1da177e4 LT |
908 | min = TEMP_FROM_REG(data->zone[nr].limit); |
909 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
910 | data->zone[nr].range = RANGE_TO_REG( | |
911 | val - min); | |
912 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
913 | ((data->zone[nr].range & 0x0f) << 4) | |
914 | | (data->autofan[nr].freq & 0x07)); | |
9a61bf63 | 915 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
916 | return count; |
917 | } | |
b353a487 JD |
918 | |
919 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
920 | struct device_attribute *attr, char *buf) | |
1da177e4 | 921 | { |
b353a487 | 922 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 923 | struct lm85_data *data = lm85_update_device(dev); |
1f44809a | 924 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->zone[nr].critical)); |
1da177e4 | 925 | } |
b353a487 JD |
926 | |
927 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
1f44809a | 928 | struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 929 | { |
b353a487 | 930 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
931 | struct i2c_client *client = to_i2c_client(dev); |
932 | struct lm85_data *data = i2c_get_clientdata(client); | |
933 | long val = simple_strtol(buf, NULL, 10); | |
934 | ||
9a61bf63 | 935 | mutex_lock(&data->update_lock); |
1da177e4 LT |
936 | data->zone[nr].critical = TEMP_TO_REG(val); |
937 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
938 | data->zone[nr].critical); | |
9a61bf63 | 939 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
940 | return count; |
941 | } | |
b353a487 | 942 | |
1da177e4 | 943 | #define temp_auto(offset) \ |
b353a487 JD |
944 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
945 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
946 | set_temp_auto_temp_off, offset - 1); \ | |
947 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
948 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
949 | set_temp_auto_temp_min, offset - 1); \ | |
950 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
951 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
952 | set_temp_auto_temp_max, offset - 1); \ | |
953 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
954 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
955 | set_temp_auto_temp_crit, offset - 1); | |
956 | ||
1da177e4 LT |
957 | temp_auto(1); |
958 | temp_auto(2); | |
959 | temp_auto(3); | |
960 | ||
d8d20615 | 961 | static int lm85_attach_adapter(struct i2c_adapter *adapter) |
1da177e4 LT |
962 | { |
963 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
964 | return 0; | |
2ed2dc3c | 965 | return i2c_probe(adapter, &addr_data, lm85_detect); |
1da177e4 LT |
966 | } |
967 | ||
0501a381 | 968 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
969 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
970 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
971 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
972 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
973 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
974 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
975 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
976 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
977 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
978 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
979 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
980 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
981 | |
982 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
983 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
984 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
985 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
986 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
987 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
988 | ||
989 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
990 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
991 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
992 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
993 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
994 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
995 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
996 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
997 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
998 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
999 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1000 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1001 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1002 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1003 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1004 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1005 | |
1006 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1007 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1008 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1009 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1010 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1011 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1012 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1013 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1014 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1015 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1016 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1017 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1018 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1019 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1020 | |
1021 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1022 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1023 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1024 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1025 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1026 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1027 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1028 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1029 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
1030 | &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr, | |
1031 | &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr, | |
1032 | &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr, | |
1033 | ||
1034 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1035 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1036 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1037 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1038 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1039 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1040 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1041 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1042 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1043 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1044 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1045 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1046 | ||
0501a381 MH |
1047 | &dev_attr_vrm.attr, |
1048 | &dev_attr_cpu0_vid.attr, | |
1049 | &dev_attr_alarms.attr, | |
0501a381 MH |
1050 | NULL |
1051 | }; | |
1052 | ||
1053 | static const struct attribute_group lm85_group = { | |
1054 | .attrs = lm85_attributes, | |
1055 | }; | |
1056 | ||
6b9aad2d | 1057 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1058 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1059 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1060 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1061 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1062 | NULL |
1063 | }; | |
1064 | ||
6b9aad2d JD |
1065 | static const struct attribute_group lm85_group_in4 = { |
1066 | .attrs = lm85_attributes_in4, | |
1067 | }; | |
1068 | ||
1069 | static struct attribute *lm85_attributes_in567[] = { | |
1070 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1071 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1072 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1073 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1074 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1075 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1076 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1077 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1078 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1079 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1080 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1081 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1082 | NULL |
1083 | }; | |
1084 | ||
1085 | static const struct attribute_group lm85_group_in567 = { | |
1086 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1087 | }; |
1088 | ||
d8d20615 | 1089 | static int lm85_detect(struct i2c_adapter *adapter, int address, |
1da177e4 LT |
1090 | int kind) |
1091 | { | |
1f44809a | 1092 | int company, verstep; |
e89e22b2 | 1093 | struct i2c_client *client; |
1da177e4 LT |
1094 | struct lm85_data *data; |
1095 | int err = 0; | |
e89e22b2 | 1096 | const char *type_name; |
1da177e4 | 1097 | |
e89e22b2 | 1098 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1da177e4 | 1099 | /* We need to be able to do byte I/O */ |
1f44809a JD |
1100 | goto ERROR0; |
1101 | } | |
1da177e4 LT |
1102 | |
1103 | /* OK. For now, we presume we have a valid client. We now create the | |
1104 | client structure, even though we cannot fill it completely yet. | |
1105 | But it allows us to access lm85_{read,write}_value. */ | |
1106 | ||
ba9c2e8d | 1107 | if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) { |
1da177e4 LT |
1108 | err = -ENOMEM; |
1109 | goto ERROR0; | |
1110 | } | |
1da177e4 | 1111 | |
e89e22b2 JD |
1112 | client = &data->client; |
1113 | i2c_set_clientdata(client, data); | |
1114 | client->addr = address; | |
1115 | client->adapter = adapter; | |
1116 | client->driver = &lm85_driver; | |
1da177e4 LT |
1117 | |
1118 | /* Now, we do the remaining detection. */ | |
1119 | ||
e89e22b2 JD |
1120 | company = lm85_read_value(client, LM85_REG_COMPANY); |
1121 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); | |
1da177e4 LT |
1122 | |
1123 | dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" | |
1124 | " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
e89e22b2 | 1125 | i2c_adapter_id(client->adapter), client->addr, |
1da177e4 LT |
1126 | company, verstep); |
1127 | ||
1128 | /* If auto-detecting, Determine the chip type. */ | |
1129 | if (kind <= 0) { | |
1130 | dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n", | |
1f44809a JD |
1131 | i2c_adapter_id(adapter), address); |
1132 | if (company == LM85_COMPANY_NATIONAL | |
1133 | && verstep == LM85_VERSTEP_LM85C) { | |
1134 | kind = lm85c; | |
1135 | } else if (company == LM85_COMPANY_NATIONAL | |
1136 | && verstep == LM85_VERSTEP_LM85B) { | |
1137 | kind = lm85b; | |
1138 | } else if (company == LM85_COMPANY_NATIONAL | |
1139 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1da177e4 LT |
1140 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" |
1141 | " Defaulting to LM85.\n", verstep); | |
1f44809a JD |
1142 | kind = any_chip; |
1143 | } else if (company == LM85_COMPANY_ANALOG_DEV | |
1144 | && verstep == LM85_VERSTEP_ADM1027) { | |
1145 | kind = adm1027; | |
1146 | } else if (company == LM85_COMPANY_ANALOG_DEV | |
1da177e4 | 1147 | && (verstep == LM85_VERSTEP_ADT7463 |
1f44809a JD |
1148 | || verstep == LM85_VERSTEP_ADT7463C)) { |
1149 | kind = adt7463; | |
1150 | } else if (company == LM85_COMPANY_ANALOG_DEV | |
1151 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1da177e4 | 1152 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" |
1f44809a JD |
1153 | " Defaulting to Generic LM85.\n", verstep); |
1154 | kind = any_chip; | |
1155 | } else if (company == LM85_COMPANY_SMSC | |
1da177e4 | 1156 | && (verstep == LM85_VERSTEP_EMC6D100_A0 |
1f44809a | 1157 | || verstep == LM85_VERSTEP_EMC6D100_A1)) { |
1da177e4 LT |
1158 | /* Unfortunately, we can't tell a '100 from a '101 |
1159 | * from the registers. Since a '101 is a '100 | |
1160 | * in a package with fewer pins and therefore no | |
1161 | * 3.3V, 1.5V or 1.8V inputs, perhaps if those | |
1162 | * inputs read 0, then it's a '101. | |
1163 | */ | |
1f44809a JD |
1164 | kind = emc6d100; |
1165 | } else if (company == LM85_COMPANY_SMSC | |
1da177e4 | 1166 | && verstep == LM85_VERSTEP_EMC6D102) { |
1f44809a JD |
1167 | kind = emc6d102; |
1168 | } else if (company == LM85_COMPANY_SMSC | |
1da177e4 LT |
1169 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { |
1170 | dev_err(&adapter->dev, "lm85: Detected SMSC chip\n"); | |
1171 | dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x" | |
1f44809a JD |
1172 | " Defaulting to Generic LM85.\n", verstep); |
1173 | kind = any_chip; | |
1174 | } else if (kind == any_chip | |
1da177e4 LT |
1175 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { |
1176 | dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n"); | |
1177 | /* Leave kind as "any_chip" */ | |
1178 | } else { | |
1179 | dev_dbg(&adapter->dev, "Autodetection failed\n"); | |
1f44809a JD |
1180 | /* Not an LM85... */ |
1181 | if (kind == any_chip) { /* User used force=x,y */ | |
1da177e4 LT |
1182 | dev_err(&adapter->dev, "Generic LM85 Version 6 not" |
1183 | " found at %d,0x%02x. Try force_lm85c.\n", | |
1f44809a | 1184 | i2c_adapter_id(adapter), address); |
1da177e4 | 1185 | } |
1f44809a | 1186 | err = 0; |
1da177e4 LT |
1187 | goto ERROR1; |
1188 | } | |
1189 | } | |
1190 | ||
1191 | /* Fill in the chip specific driver values */ | |
e89e22b2 JD |
1192 | switch (kind) { |
1193 | case lm85b: | |
1da177e4 | 1194 | type_name = "lm85b"; |
e89e22b2 JD |
1195 | break; |
1196 | case lm85c: | |
1da177e4 | 1197 | type_name = "lm85c"; |
e89e22b2 JD |
1198 | break; |
1199 | case adm1027: | |
1da177e4 | 1200 | type_name = "adm1027"; |
e89e22b2 JD |
1201 | break; |
1202 | case adt7463: | |
1da177e4 | 1203 | type_name = "adt7463"; |
e89e22b2 JD |
1204 | break; |
1205 | case emc6d100: | |
1da177e4 | 1206 | type_name = "emc6d100"; |
e89e22b2 JD |
1207 | break; |
1208 | case emc6d102: | |
1da177e4 | 1209 | type_name = "emc6d102"; |
e89e22b2 JD |
1210 | break; |
1211 | default: | |
1212 | type_name = "lm85"; | |
1213 | } | |
1214 | strlcpy(client->name, type_name, I2C_NAME_SIZE); | |
1da177e4 LT |
1215 | |
1216 | /* Fill in the remaining client fields */ | |
1217 | data->type = kind; | |
9a61bf63 | 1218 | mutex_init(&data->update_lock); |
1da177e4 LT |
1219 | |
1220 | /* Tell the I2C layer a new client has arrived */ | |
e89e22b2 JD |
1221 | err = i2c_attach_client(client); |
1222 | if (err) | |
1da177e4 LT |
1223 | goto ERROR1; |
1224 | ||
1225 | /* Set the VRM version */ | |
303760b4 | 1226 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1227 | |
1228 | /* Initialize the LM85 chip */ | |
e89e22b2 | 1229 | lm85_init_client(client); |
1da177e4 LT |
1230 | |
1231 | /* Register sysfs hooks */ | |
e89e22b2 JD |
1232 | err = sysfs_create_group(&client->dev.kobj, &lm85_group); |
1233 | if (err) | |
943b0830 | 1234 | goto ERROR2; |
1da177e4 | 1235 | |
9c516ef4 JD |
1236 | /* The ADT7463 has an optional VRM 10 mode where pin 21 is used |
1237 | as a sixth digital VID input rather than an analog input. */ | |
e89e22b2 | 1238 | data->vid = lm85_read_value(client, LM85_REG_VID); |
0501a381 | 1239 | if (!(kind == adt7463 && (data->vid & 0x80))) |
e89e22b2 | 1240 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d JD |
1241 | &lm85_group_in4))) |
1242 | goto ERROR3; | |
1243 | ||
1244 | /* The EMC6D100 has 3 additional voltage inputs */ | |
1245 | if (kind == emc6d100) | |
e89e22b2 | 1246 | if ((err = sysfs_create_group(&client->dev.kobj, |
6b9aad2d | 1247 | &lm85_group_in567))) |
0501a381 MH |
1248 | goto ERROR3; |
1249 | ||
e89e22b2 | 1250 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
1251 | if (IS_ERR(data->hwmon_dev)) { |
1252 | err = PTR_ERR(data->hwmon_dev); | |
0501a381 | 1253 | goto ERROR3; |
9c516ef4 JD |
1254 | } |
1255 | ||
1da177e4 LT |
1256 | return 0; |
1257 | ||
1258 | /* Error out and cleanup code */ | |
1f44809a | 1259 | ERROR3: |
e89e22b2 JD |
1260 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
1261 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); | |
6b9aad2d | 1262 | if (kind == emc6d100) |
e89e22b2 | 1263 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); |
1f44809a | 1264 | ERROR2: |
e89e22b2 | 1265 | i2c_detach_client(client); |
1f44809a | 1266 | ERROR1: |
1da177e4 | 1267 | kfree(data); |
1f44809a | 1268 | ERROR0: |
1da177e4 LT |
1269 | return err; |
1270 | } | |
1271 | ||
d8d20615 | 1272 | static int lm85_detach_client(struct i2c_client *client) |
1da177e4 | 1273 | { |
943b0830 | 1274 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1275 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1276 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1277 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1278 | if (data->type == emc6d100) | |
1279 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
1da177e4 | 1280 | i2c_detach_client(client); |
943b0830 | 1281 | kfree(data); |
1da177e4 LT |
1282 | return 0; |
1283 | } | |
1284 | ||
1285 | ||
d8d20615 | 1286 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1287 | { |
1288 | int res; | |
1289 | ||
1290 | /* What size location is it? */ | |
1f44809a JD |
1291 | switch (reg) { |
1292 | case LM85_REG_FAN(0): /* Read WORD data */ | |
1293 | case LM85_REG_FAN(1): | |
1294 | case LM85_REG_FAN(2): | |
1295 | case LM85_REG_FAN(3): | |
1296 | case LM85_REG_FAN_MIN(0): | |
1297 | case LM85_REG_FAN_MIN(1): | |
1298 | case LM85_REG_FAN_MIN(2): | |
1299 | case LM85_REG_FAN_MIN(3): | |
1300 | case LM85_REG_ALARM1: /* Read both bytes at once */ | |
1301 | res = i2c_smbus_read_byte_data(client, reg) & 0xff; | |
1302 | res |= i2c_smbus_read_byte_data(client, reg + 1) << 8; | |
1303 | break; | |
1da177e4 LT |
1304 | default: /* Read BYTE data */ |
1305 | res = i2c_smbus_read_byte_data(client, reg); | |
1f44809a | 1306 | break; |
1da177e4 LT |
1307 | } |
1308 | ||
1f44809a | 1309 | return res; |
1da177e4 LT |
1310 | } |
1311 | ||
e89e22b2 | 1312 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 | 1313 | { |
1f44809a JD |
1314 | switch (reg) { |
1315 | case LM85_REG_FAN(0): /* Write WORD data */ | |
1316 | case LM85_REG_FAN(1): | |
1317 | case LM85_REG_FAN(2): | |
1318 | case LM85_REG_FAN(3): | |
1319 | case LM85_REG_FAN_MIN(0): | |
1320 | case LM85_REG_FAN_MIN(1): | |
1321 | case LM85_REG_FAN_MIN(2): | |
1322 | case LM85_REG_FAN_MIN(3): | |
1da177e4 | 1323 | /* NOTE: ALARM is read only, so not included here */ |
e89e22b2 JD |
1324 | i2c_smbus_write_byte_data(client, reg, value & 0xff); |
1325 | i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
1f44809a | 1326 | break; |
1da177e4 | 1327 | default: /* Write BYTE data */ |
e89e22b2 | 1328 | i2c_smbus_write_byte_data(client, reg, value); |
1f44809a | 1329 | break; |
1da177e4 | 1330 | } |
1da177e4 LT |
1331 | } |
1332 | ||
d8d20615 | 1333 | static void lm85_init_client(struct i2c_client *client) |
1da177e4 LT |
1334 | { |
1335 | int value; | |
1336 | struct lm85_data *data = i2c_get_clientdata(client); | |
1337 | ||
1338 | dev_dbg(&client->dev, "Initializing device\n"); | |
1339 | ||
1340 | /* Warn if part was not "READY" */ | |
1341 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1342 | dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value); | |
1f44809a | 1343 | if (value & 0x02) { |
1da177e4 | 1344 | dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n", |
1f44809a JD |
1345 | i2c_adapter_id(client->adapter), client->addr); |
1346 | } | |
1347 | if (!(value & 0x04)) { | |
1da177e4 | 1348 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", |
1f44809a JD |
1349 | i2c_adapter_id(client->adapter), client->addr); |
1350 | } | |
1351 | if (value & 0x10 | |
1352 | && (data->type == adm1027 | |
1353 | || data->type == adt7463)) { | |
1da177e4 LT |
1354 | dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. " |
1355 | "Please report this to the lm85 maintainer.\n", | |
1f44809a JD |
1356 | i2c_adapter_id(client->adapter), client->addr); |
1357 | } | |
1da177e4 LT |
1358 | |
1359 | /* WE INTENTIONALLY make no changes to the limits, | |
1360 | * offsets, pwms, fans and zones. If they were | |
1361 | * configured, we don't want to mess with them. | |
1362 | * If they weren't, the default is 100% PWM, no | |
1363 | * control and will suffice until 'sensors -s' | |
1364 | * can be run by the user. | |
1365 | */ | |
1366 | ||
1367 | /* Start monitoring */ | |
1368 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1369 | /* Try to clear LOCK, Set START, save everything else */ | |
1f44809a | 1370 | value = (value & ~0x02) | 0x01; |
1da177e4 LT |
1371 | dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); |
1372 | lm85_write_value(client, LM85_REG_CONFIG, value); | |
1373 | } | |
1374 | ||
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 | */ |
1f44809a | 1393 | if (data->type == adm1027 || data->type == adt7463) { |
1da177e4 LT |
1394 | int ext1 = lm85_read_value(client, |
1395 | ADM1027_REG_EXTEND_ADC1); | |
1396 | int ext2 = lm85_read_value(client, | |
1397 | ADM1027_REG_EXTEND_ADC2); | |
1398 | int val = (ext1 << 8) + ext2; | |
1399 | ||
1f44809a JD |
1400 | for (i = 0; i <= 4; i++) |
1401 | data->in_ext[i] = | |
1402 | ((val >> (i * 2)) & 0x03) << 2; | |
1da177e4 | 1403 | |
1f44809a JD |
1404 | for (i = 0; i <= 2; i++) |
1405 | data->temp_ext[i] = | |
1406 | (val >> ((i + 4) * 2)) & 0x0c; | |
1da177e4 LT |
1407 | } |
1408 | ||
9c516ef4 JD |
1409 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1410 | ||
1411 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1412 | data->in[i] = |
1413 | lm85_read_value(client, LM85_REG_IN(i)); | |
e89e22b2 JD |
1414 | data->fan[i] = |
1415 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1da177e4 LT |
1416 | } |
1417 | ||
9c516ef4 JD |
1418 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1419 | data->in[4] = lm85_read_value(client, | |
1420 | LM85_REG_IN(4)); | |
1421 | } | |
1422 | ||
1da177e4 LT |
1423 | for (i = 0; i <= 2; ++i) { |
1424 | data->temp[i] = | |
1425 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1da177e4 LT |
1426 | data->pwm[i] = |
1427 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1428 | } | |
1429 | ||
1430 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1431 | ||
dd1ac538 | 1432 | if (data->type == emc6d100) { |
1da177e4 LT |
1433 | /* Three more voltage sensors */ |
1434 | for (i = 5; i <= 7; ++i) { | |
1f44809a JD |
1435 | data->in[i] = lm85_read_value(client, |
1436 | EMC6D100_REG_IN(i)); | |
1da177e4 LT |
1437 | } |
1438 | /* More alarm bits */ | |
1f44809a JD |
1439 | data->alarms |= lm85_read_value(client, |
1440 | EMC6D100_REG_ALARM3) << 16; | |
1441 | } else if (data->type == emc6d102) { | |
1da177e4 LT |
1442 | /* Have to read LSB bits after the MSB ones because |
1443 | the reading of the MSB bits has frozen the | |
1444 | LSBs (backward from the ADM1027). | |
1445 | */ | |
1446 | int ext1 = lm85_read_value(client, | |
1447 | EMC6D102_REG_EXTEND_ADC1); | |
1448 | int ext2 = lm85_read_value(client, | |
1449 | EMC6D102_REG_EXTEND_ADC2); | |
1450 | int ext3 = lm85_read_value(client, | |
1451 | EMC6D102_REG_EXTEND_ADC3); | |
1452 | int ext4 = lm85_read_value(client, | |
1453 | EMC6D102_REG_EXTEND_ADC4); | |
1454 | data->in_ext[0] = ext3 & 0x0f; | |
1455 | data->in_ext[1] = ext4 & 0x0f; | |
e89e22b2 JD |
1456 | data->in_ext[2] = ext4 >> 4; |
1457 | data->in_ext[3] = ext3 >> 4; | |
1458 | data->in_ext[4] = ext2 >> 4; | |
1da177e4 LT |
1459 | |
1460 | data->temp_ext[0] = ext1 & 0x0f; | |
1461 | data->temp_ext[1] = ext2 & 0x0f; | |
e89e22b2 | 1462 | data->temp_ext[2] = ext1 >> 4; |
1da177e4 LT |
1463 | } |
1464 | ||
1f44809a JD |
1465 | data->last_reading = jiffies; |
1466 | } /* last_reading */ | |
1da177e4 | 1467 | |
1f44809a JD |
1468 | if (!data->valid || |
1469 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { | |
1da177e4 LT |
1470 | /* Things that don't change often */ |
1471 | dev_dbg(&client->dev, "Reading config values\n"); | |
1472 | ||
9c516ef4 | 1473 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1474 | data->in_min[i] = |
1475 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1476 | data->in_max[i] = | |
1477 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
e89e22b2 JD |
1478 | data->fan_min[i] = |
1479 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1da177e4 LT |
1480 | } |
1481 | ||
9c516ef4 JD |
1482 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1483 | data->in_min[4] = lm85_read_value(client, | |
1484 | LM85_REG_IN_MIN(4)); | |
1485 | data->in_max[4] = lm85_read_value(client, | |
1486 | LM85_REG_IN_MAX(4)); | |
1487 | } | |
1488 | ||
1f44809a | 1489 | if (data->type == emc6d100) { |
1da177e4 | 1490 | for (i = 5; i <= 7; ++i) { |
1f44809a JD |
1491 | data->in_min[i] = lm85_read_value(client, |
1492 | EMC6D100_REG_IN_MIN(i)); | |
1493 | data->in_max[i] = lm85_read_value(client, | |
1494 | EMC6D100_REG_IN_MAX(i)); | |
1da177e4 LT |
1495 | } |
1496 | } | |
1497 | ||
1da177e4 | 1498 | for (i = 0; i <= 2; ++i) { |
e89e22b2 JD |
1499 | int val; |
1500 | ||
1da177e4 LT |
1501 | data->temp_min[i] = |
1502 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1503 | data->temp_max[i] = | |
1504 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1da177e4 | 1505 | |
1da177e4 LT |
1506 | data->autofan[i].config = |
1507 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1508 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
1f44809a | 1509 | data->autofan[i].freq = val & 0x07; |
e89e22b2 | 1510 | data->zone[i].range = val >> 4; |
1da177e4 LT |
1511 | data->autofan[i].min_pwm = |
1512 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1513 | data->zone[i].limit = | |
1514 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1515 | data->zone[i].critical = | |
1516 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1517 | } | |
1518 | ||
1519 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1f44809a JD |
1520 | data->autofan[0].min_off = (i & 0x20) != 0; |
1521 | data->autofan[1].min_off = (i & 0x40) != 0; | |
1522 | data->autofan[2].min_off = (i & 0x80) != 0; | |
1da177e4 LT |
1523 | |
1524 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
e89e22b2 | 1525 | data->zone[0].hyst = i >> 4; |
1f44809a | 1526 | data->zone[1].hyst = i & 0x0f; |
1da177e4 LT |
1527 | |
1528 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
e89e22b2 | 1529 | data->zone[2].hyst = i >> 4; |
1da177e4 | 1530 | |
1da177e4 | 1531 | data->last_config = jiffies; |
1f44809a | 1532 | } /* last_config */ |
1da177e4 LT |
1533 | |
1534 | data->valid = 1; | |
1535 | ||
9a61bf63 | 1536 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1537 | |
1538 | return data; | |
1539 | } | |
1540 | ||
1541 | ||
1542 | static int __init sm_lm85_init(void) | |
1543 | { | |
1544 | return i2c_add_driver(&lm85_driver); | |
1545 | } | |
1546 | ||
1f44809a | 1547 | static void __exit sm_lm85_exit(void) |
1da177e4 LT |
1548 | { |
1549 | i2c_del_driver(&lm85_driver); | |
1550 | } | |
1551 | ||
1da177e4 | 1552 | MODULE_LICENSE("GPL"); |
1f44809a JD |
1553 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1554 | "Margit Schubert-While <margitsw@t-online.de>, " | |
e89e22b2 | 1555 | "Justin Thiessen <jthiessen@penguincomputing.com>"); |
1da177e4 LT |
1556 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); |
1557 | ||
1558 | module_init(sm_lm85_init); | |
1559 | module_exit(sm_lm85_exit); |