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1da177e4 LT |
1 | /* |
2 | lm85.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
4 | Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> | |
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) */ | |
54 | #define LM85_REG_FAN(nr) (0x28 + (nr) *2) | |
55 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) *2) | |
56 | ||
57 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
58 | ||
59 | #define ADT7463_REG_OPPOINT(nr) (0x33 + (nr)) | |
60 | ||
61 | #define ADT7463_REG_TMIN_CTL1 0x36 | |
62 | #define ADT7463_REG_TMIN_CTL2 0x37 | |
63 | ||
64 | #define LM85_REG_DEVICE 0x3d | |
65 | #define LM85_REG_COMPANY 0x3e | |
66 | #define LM85_REG_VERSTEP 0x3f | |
67 | /* These are the recognized values for the above regs */ | |
68 | #define LM85_DEVICE_ADX 0x27 | |
69 | #define LM85_COMPANY_NATIONAL 0x01 | |
70 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
71 | #define LM85_COMPANY_SMSC 0x5c | |
72 | #define LM85_VERSTEP_VMASK 0xf0 | |
73 | #define LM85_VERSTEP_GENERIC 0x60 | |
74 | #define LM85_VERSTEP_LM85C 0x60 | |
75 | #define LM85_VERSTEP_LM85B 0x62 | |
76 | #define LM85_VERSTEP_ADM1027 0x60 | |
77 | #define LM85_VERSTEP_ADT7463 0x62 | |
78 | #define LM85_VERSTEP_ADT7463C 0x6A | |
79 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
80 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
81 | #define LM85_VERSTEP_EMC6D102 0x65 | |
82 | ||
83 | #define LM85_REG_CONFIG 0x40 | |
84 | ||
85 | #define LM85_REG_ALARM1 0x41 | |
86 | #define LM85_REG_ALARM2 0x42 | |
87 | ||
88 | #define LM85_REG_VID 0x43 | |
89 | ||
90 | /* Automated FAN control */ | |
91 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
92 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
93 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
94 | #define LM85_REG_AFAN_SPIKE2 0x63 | |
95 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) | |
96 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
97 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
98 | #define LM85_REG_AFAN_HYST1 0x6d | |
99 | #define LM85_REG_AFAN_HYST2 0x6e | |
100 | ||
101 | #define LM85_REG_TACH_MODE 0x74 | |
102 | #define LM85_REG_SPINUP_CTL 0x75 | |
103 | ||
104 | #define ADM1027_REG_TEMP_OFFSET(nr) (0x70 + (nr)) | |
105 | #define ADM1027_REG_CONFIG2 0x73 | |
106 | #define ADM1027_REG_INTMASK1 0x74 | |
107 | #define ADM1027_REG_INTMASK2 0x75 | |
108 | #define ADM1027_REG_EXTEND_ADC1 0x76 | |
109 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
110 | #define ADM1027_REG_CONFIG3 0x78 | |
111 | #define ADM1027_REG_FAN_PPR 0x7b | |
112 | ||
113 | #define ADT7463_REG_THERM 0x79 | |
114 | #define ADT7463_REG_THERM_LIMIT 0x7A | |
115 | ||
116 | #define EMC6D100_REG_ALARM3 0x7d | |
117 | /* IN5, IN6 and IN7 */ | |
118 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr)-5)) | |
119 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr)-5) * 2) | |
120 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr)-5) * 2) | |
121 | #define EMC6D102_REG_EXTEND_ADC1 0x85 | |
122 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
123 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
124 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
125 | ||
1da177e4 LT |
126 | |
127 | /* Conversions. Rounding and limit checking is only done on the TO_REG | |
128 | variants. Note that you should be a bit careful with which arguments | |
129 | these macros are called: arguments may be evaluated more than once. | |
130 | */ | |
131 | ||
132 | /* IN are scaled acording to built-in resistors */ | |
133 | static int lm85_scaling[] = { /* .001 Volts */ | |
134 | 2500, 2250, 3300, 5000, 12000, | |
135 | 3300, 1500, 1800 /*EMC6D100*/ | |
136 | }; | |
137 | #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from)) | |
138 | ||
139 | #define INS_TO_REG(n,val) \ | |
140 | SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255) | |
141 | ||
5a4d3ef3 JD |
142 | #define INSEXT_FROM_REG(n,val,ext) \ |
143 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) | |
1da177e4 | 144 | |
5a4d3ef3 | 145 | #define INS_FROM_REG(n,val) SCALE((val), 192, lm85_scaling[n]) |
1da177e4 LT |
146 | |
147 | /* FAN speed is measured using 90kHz clock */ | |
63f281a6 JD |
148 | static inline u16 FAN_TO_REG(unsigned long val) |
149 | { | |
150 | if (!val) | |
151 | return 0xffff; | |
152 | return SENSORS_LIMIT(5400000 / val, 1, 0xfffe); | |
153 | } | |
1da177e4 LT |
154 | #define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val)) |
155 | ||
156 | /* Temperature is reported in .001 degC increments */ | |
157 | #define TEMP_TO_REG(val) \ | |
158 | SENSORS_LIMIT(SCALE(val,1000,1),-127,127) | |
5a4d3ef3 JD |
159 | #define TEMPEXT_FROM_REG(val,ext) \ |
160 | SCALE(((val) << 4) + (ext), 16, 1000) | |
161 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
1da177e4 LT |
162 | |
163 | #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255)) | |
164 | #define PWM_FROM_REG(val) (val) | |
165 | ||
166 | ||
167 | /* ZONEs have the following parameters: | |
168 | * Limit (low) temp, 1. degC | |
169 | * Hysteresis (below limit), 1. degC (0-15) | |
170 | * Range of speed control, .1 degC (2-80) | |
171 | * Critical (high) temp, 1. degC | |
172 | * | |
173 | * FAN PWMs have the following parameters: | |
174 | * Reference Zone, 1, 2, 3, etc. | |
175 | * Spinup time, .05 sec | |
176 | * PWM value at limit/low temp, 1 count | |
177 | * PWM Frequency, 1. Hz | |
178 | * PWM is Min or OFF below limit, flag | |
179 | * Invert PWM output, flag | |
180 | * | |
181 | * Some chips filter the temp, others the fan. | |
182 | * Filter constant (or disabled) .1 seconds | |
183 | */ | |
184 | ||
185 | /* These are the zone temperature range encodings in .001 degree C */ | |
186 | static int lm85_range_map[] = { | |
187 | 2000, 2500, 3300, 4000, 5000, 6600, | |
188 | 8000, 10000, 13300, 16000, 20000, 26600, | |
189 | 32000, 40000, 53300, 80000 | |
190 | }; | |
191 | static int RANGE_TO_REG( int range ) | |
192 | { | |
193 | int i; | |
194 | ||
d38b1497 | 195 | if (range >= lm85_range_map[15]) |
1da177e4 | 196 | return 15 ; |
d38b1497 JD |
197 | |
198 | /* Find the closest match */ | |
199 | for (i = 14; i >= 0; --i) { | |
200 | if (range >= lm85_range_map[i]) { | |
201 | if ((lm85_range_map[i + 1] - range) < | |
202 | (range - lm85_range_map[i])) | |
203 | return i + 1; | |
204 | return i; | |
1da177e4 LT |
205 | } |
206 | } | |
d38b1497 JD |
207 | |
208 | return 0; | |
1da177e4 LT |
209 | } |
210 | #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f]) | |
211 | ||
212 | /* These are the Acoustic Enhancement, or Temperature smoothing encodings | |
213 | * NOTE: The enable/disable bit is INCLUDED in these encodings as the | |
214 | * MSB (bit 3, value 8). If the enable bit is 0, the encoded value | |
215 | * is ignored, or set to 0. | |
216 | */ | |
217 | /* These are the PWM frequency encodings */ | |
218 | static int lm85_freq_map[] = { /* .1 Hz */ | |
219 | 100, 150, 230, 300, 380, 470, 620, 940 | |
220 | }; | |
221 | static int FREQ_TO_REG( int freq ) | |
222 | { | |
223 | int i; | |
224 | ||
225 | if( freq >= lm85_freq_map[7] ) { return 7 ; } | |
226 | for( i = 0 ; i < 7 ; ++i ) | |
227 | if( freq <= lm85_freq_map[i] ) | |
228 | break ; | |
229 | return( i & 0x07 ); | |
230 | } | |
231 | #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07]) | |
232 | ||
233 | /* Since we can't use strings, I'm abusing these numbers | |
234 | * to stand in for the following meanings: | |
235 | * 1 -- PWM responds to Zone 1 | |
236 | * 2 -- PWM responds to Zone 2 | |
237 | * 3 -- PWM responds to Zone 3 | |
238 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
239 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
240 | * 0 -- PWM is always at 0% (ie, off) | |
241 | * -1 -- PWM is always at 100% | |
242 | * -2 -- PWM responds to manual control | |
243 | */ | |
244 | ||
245 | static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; | |
246 | #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07]) | |
247 | ||
248 | static int ZONE_TO_REG( int zone ) | |
249 | { | |
250 | int i; | |
251 | ||
252 | for( i = 0 ; i <= 7 ; ++i ) | |
253 | if( zone == lm85_zone_map[i] ) | |
254 | break ; | |
255 | if( i > 7 ) /* Not found. */ | |
256 | i = 3; /* Always 100% */ | |
257 | return( (i & 0x07)<<5 ); | |
258 | } | |
259 | ||
260 | #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15)) | |
261 | #define HYST_FROM_REG(val) ((val)*1000) | |
262 | ||
263 | #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127)) | |
264 | #define OFFSET_FROM_REG(val) ((val)*25) | |
265 | ||
266 | #define PPR_MASK(fan) (0x03<<(fan *2)) | |
267 | #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2)) | |
268 | #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1) | |
269 | ||
1da177e4 LT |
270 | /* Chip sampling rates |
271 | * | |
272 | * Some sensors are not updated more frequently than once per second | |
273 | * so it doesn't make sense to read them more often than that. | |
274 | * We cache the results and return the saved data if the driver | |
275 | * is called again before a second has elapsed. | |
276 | * | |
277 | * Also, there is significant configuration data for this chip | |
278 | * given the automatic PWM fan control that is possible. There | |
279 | * are about 47 bytes of config data to only 22 bytes of actual | |
280 | * readings. So, we keep the config data up to date in the cache | |
281 | * when it is written and only sample it once every 1 *minute* | |
282 | */ | |
283 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
284 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
285 | ||
1da177e4 LT |
286 | /* LM85 can automatically adjust fan speeds based on temperature |
287 | * This structure encapsulates an entire Zone config. There are | |
288 | * three zones (one for each temperature input) on the lm85 | |
289 | */ | |
290 | struct lm85_zone { | |
291 | s8 limit; /* Low temp limit */ | |
292 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
293 | u8 range; /* Temp range, encoded */ | |
294 | s8 critical; /* "All fans ON" temp limit */ | |
295 | u8 off_desired; /* Actual "off" temperature specified. Preserved | |
296 | * to prevent "drift" as other autofan control | |
297 | * values change. | |
298 | */ | |
299 | u8 max_desired; /* Actual "max" temperature specified. Preserved | |
300 | * to prevent "drift" as other autofan control | |
301 | * values change. | |
302 | */ | |
303 | }; | |
304 | ||
305 | struct lm85_autofan { | |
306 | u8 config; /* Register value */ | |
307 | u8 freq; /* PWM frequency, encoded */ | |
308 | u8 min_pwm; /* Minimum PWM value, encoded */ | |
309 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
310 | }; | |
311 | ||
ed6bafbf JD |
312 | /* For each registered chip, we need to keep some data in memory. |
313 | The structure is dynamically allocated. */ | |
1da177e4 LT |
314 | struct lm85_data { |
315 | struct i2c_client client; | |
1beeffe4 | 316 | struct device *hwmon_dev; |
1da177e4 LT |
317 | enum chips type; |
318 | ||
9a61bf63 | 319 | struct mutex update_lock; |
1da177e4 LT |
320 | int valid; /* !=0 if following fields are valid */ |
321 | unsigned long last_reading; /* In jiffies */ | |
322 | unsigned long last_config; /* In jiffies */ | |
323 | ||
324 | u8 in[8]; /* Register value */ | |
325 | u8 in_max[8]; /* Register value */ | |
326 | u8 in_min[8]; /* Register value */ | |
327 | s8 temp[3]; /* Register value */ | |
328 | s8 temp_min[3]; /* Register value */ | |
329 | s8 temp_max[3]; /* Register value */ | |
330 | s8 temp_offset[3]; /* Register value */ | |
331 | u16 fan[4]; /* Register value */ | |
332 | u16 fan_min[4]; /* Register value */ | |
333 | u8 pwm[3]; /* Register value */ | |
334 | u8 spinup_ctl; /* Register encoding, combined */ | |
335 | u8 tach_mode; /* Register encoding, combined */ | |
336 | u8 temp_ext[3]; /* Decoded values */ | |
337 | u8 in_ext[8]; /* Decoded values */ | |
1da177e4 LT |
338 | u8 fan_ppr; /* Register value */ |
339 | u8 smooth[3]; /* Register encoding */ | |
340 | u8 vid; /* Register value */ | |
341 | u8 vrm; /* VRM version */ | |
342 | u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */ | |
343 | u8 oppoint[3]; /* Register value */ | |
344 | u16 tmin_ctl; /* Register value */ | |
345 | unsigned long therm_total; /* Cummulative therm count */ | |
346 | u8 therm_limit; /* Register value */ | |
347 | u32 alarms; /* Register encoding, combined */ | |
348 | struct lm85_autofan autofan[3]; | |
349 | struct lm85_zone zone[3]; | |
350 | }; | |
351 | ||
352 | static int lm85_attach_adapter(struct i2c_adapter *adapter); | |
353 | static int lm85_detect(struct i2c_adapter *adapter, int address, | |
354 | int kind); | |
355 | static int lm85_detach_client(struct i2c_client *client); | |
356 | ||
f6c27fc1 DJ |
357 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
358 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value); | |
1da177e4 LT |
359 | static struct lm85_data *lm85_update_device(struct device *dev); |
360 | static void lm85_init_client(struct i2c_client *client); | |
361 | ||
362 | ||
363 | static struct i2c_driver lm85_driver = { | |
cdaf7934 | 364 | .driver = { |
cdaf7934 LR |
365 | .name = "lm85", |
366 | }, | |
1da177e4 LT |
367 | .attach_adapter = lm85_attach_adapter, |
368 | .detach_client = lm85_detach_client, | |
369 | }; | |
370 | ||
371 | ||
372 | /* 4 Fans */ | |
b353a487 JD |
373 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
374 | char *buf) | |
1da177e4 | 375 | { |
b353a487 | 376 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
377 | struct lm85_data *data = lm85_update_device(dev); |
378 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) ); | |
379 | } | |
b353a487 JD |
380 | |
381 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
382 | char *buf) | |
1da177e4 | 383 | { |
b353a487 | 384 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
385 | struct lm85_data *data = lm85_update_device(dev); |
386 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) ); | |
387 | } | |
b353a487 JD |
388 | |
389 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
390 | const char *buf, size_t count) | |
1da177e4 | 391 | { |
b353a487 | 392 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
393 | struct i2c_client *client = to_i2c_client(dev); |
394 | struct lm85_data *data = i2c_get_clientdata(client); | |
63f281a6 | 395 | unsigned long val = simple_strtoul(buf, NULL, 10); |
1da177e4 | 396 | |
9a61bf63 | 397 | mutex_lock(&data->update_lock); |
1da177e4 LT |
398 | data->fan_min[nr] = FAN_TO_REG(val); |
399 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 400 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
401 | return count; |
402 | } | |
403 | ||
404 | #define show_fan_offset(offset) \ | |
b353a487 JD |
405 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
406 | show_fan, NULL, offset - 1); \ | |
407 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
408 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
409 | |
410 | show_fan_offset(1); | |
411 | show_fan_offset(2); | |
412 | show_fan_offset(3); | |
413 | show_fan_offset(4); | |
414 | ||
415 | /* vid, vrm, alarms */ | |
416 | ||
8627f9ba | 417 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
418 | { |
419 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
420 | int vid; |
421 | ||
422 | if (data->type == adt7463 && (data->vid & 0x80)) { | |
423 | /* 6-pin VID (VRM 10) */ | |
424 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
425 | } else { | |
426 | /* 5-pin VID (VRM 9) */ | |
427 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
428 | } | |
429 | ||
430 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
431 | } |
432 | ||
433 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
434 | ||
8627f9ba | 435 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 436 | { |
90d6619a | 437 | struct lm85_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
438 | return sprintf(buf, "%ld\n", (long) data->vrm); |
439 | } | |
440 | ||
8627f9ba | 441 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 442 | { |
8f74efe8 JD |
443 | struct lm85_data *data = dev_get_drvdata(dev); |
444 | data->vrm = simple_strtoul(buf, NULL, 10); | |
1da177e4 LT |
445 | return count; |
446 | } | |
447 | ||
448 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
449 | ||
8627f9ba | 450 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
451 | { |
452 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 453 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
454 | } |
455 | ||
456 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
457 | ||
bf76e9d3 JD |
458 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
459 | char *buf) | |
460 | { | |
461 | int nr = to_sensor_dev_attr(attr)->index; | |
462 | struct lm85_data *data = lm85_update_device(dev); | |
463 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
464 | } | |
465 | ||
466 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
467 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
468 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
469 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
470 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); | |
471 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18); | |
472 | static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16); | |
473 | static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17); | |
474 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); | |
475 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14); | |
476 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5); | |
477 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6); | |
478 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15); | |
479 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10); | |
480 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11); | |
481 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12); | |
482 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13); | |
483 | ||
1da177e4 LT |
484 | /* pwm */ |
485 | ||
b353a487 JD |
486 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
487 | char *buf) | |
1da177e4 | 488 | { |
b353a487 | 489 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
490 | struct lm85_data *data = lm85_update_device(dev); |
491 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) ); | |
492 | } | |
b353a487 JD |
493 | |
494 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
495 | const char *buf, size_t count) | |
1da177e4 | 496 | { |
b353a487 | 497 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
498 | struct i2c_client *client = to_i2c_client(dev); |
499 | struct lm85_data *data = i2c_get_clientdata(client); | |
500 | long val = simple_strtol(buf, NULL, 10); | |
501 | ||
9a61bf63 | 502 | mutex_lock(&data->update_lock); |
1da177e4 LT |
503 | data->pwm[nr] = PWM_TO_REG(val); |
504 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 505 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
506 | return count; |
507 | } | |
b353a487 JD |
508 | |
509 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
510 | *attr, char *buf) | |
1da177e4 | 511 | { |
b353a487 | 512 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 513 | struct lm85_data *data = lm85_update_device(dev); |
4b4df95d | 514 | int pwm_zone, enable; |
1da177e4 LT |
515 | |
516 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
4b4df95d JD |
517 | switch (pwm_zone) { |
518 | case -1: /* PWM is always at 100% */ | |
519 | enable = 0; | |
520 | break; | |
521 | case 0: /* PWM is always at 0% */ | |
522 | case -2: /* PWM responds to manual control */ | |
523 | enable = 1; | |
524 | break; | |
525 | default: /* PWM in automatic mode */ | |
526 | enable = 2; | |
527 | } | |
528 | return sprintf(buf, "%d\n", enable); | |
1da177e4 LT |
529 | } |
530 | ||
455f791e JD |
531 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute |
532 | *attr, const char *buf, size_t count) | |
533 | { | |
534 | int nr = to_sensor_dev_attr(attr)->index; | |
535 | struct i2c_client *client = to_i2c_client(dev); | |
536 | struct lm85_data *data = i2c_get_clientdata(client); | |
537 | long val = simple_strtol(buf, NULL, 10); | |
538 | u8 config; | |
539 | ||
540 | switch (val) { | |
541 | case 0: | |
542 | config = 3; | |
543 | break; | |
544 | case 1: | |
545 | config = 7; | |
546 | break; | |
547 | case 2: | |
548 | /* Here we have to choose arbitrarily one of the 5 possible | |
549 | configurations; I go for the safest */ | |
550 | config = 6; | |
551 | break; | |
552 | default: | |
553 | return -EINVAL; | |
554 | } | |
555 | ||
556 | mutex_lock(&data->update_lock); | |
557 | data->autofan[nr].config = lm85_read_value(client, | |
558 | LM85_REG_AFAN_CONFIG(nr)); | |
559 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) | |
560 | | (config << 5); | |
561 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
562 | data->autofan[nr].config); | |
563 | mutex_unlock(&data->update_lock); | |
564 | return count; | |
565 | } | |
566 | ||
1da177e4 | 567 | #define show_pwm_reg(offset) \ |
b353a487 JD |
568 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
569 | show_pwm, set_pwm, offset - 1); \ | |
455f791e JD |
570 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \ |
571 | show_pwm_enable, set_pwm_enable, offset - 1) | |
1da177e4 LT |
572 | |
573 | show_pwm_reg(1); | |
574 | show_pwm_reg(2); | |
575 | show_pwm_reg(3); | |
576 | ||
577 | /* Voltages */ | |
578 | ||
b353a487 JD |
579 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
580 | char *buf) | |
1da177e4 | 581 | { |
b353a487 | 582 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
583 | struct lm85_data *data = lm85_update_device(dev); |
584 | return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr, | |
585 | data->in[nr], | |
5a4d3ef3 | 586 | data->in_ext[nr])); |
1da177e4 | 587 | } |
b353a487 JD |
588 | |
589 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, | |
590 | char *buf) | |
1da177e4 | 591 | { |
b353a487 | 592 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
593 | struct lm85_data *data = lm85_update_device(dev); |
594 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) ); | |
595 | } | |
b353a487 JD |
596 | |
597 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
598 | const char *buf, size_t count) | |
1da177e4 | 599 | { |
b353a487 | 600 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
601 | struct i2c_client *client = to_i2c_client(dev); |
602 | struct lm85_data *data = i2c_get_clientdata(client); | |
603 | long val = simple_strtol(buf, NULL, 10); | |
604 | ||
9a61bf63 | 605 | mutex_lock(&data->update_lock); |
1da177e4 LT |
606 | data->in_min[nr] = INS_TO_REG(nr, val); |
607 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 608 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
609 | return count; |
610 | } | |
b353a487 JD |
611 | |
612 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
613 | char *buf) | |
1da177e4 | 614 | { |
b353a487 | 615 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
616 | struct lm85_data *data = lm85_update_device(dev); |
617 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) ); | |
618 | } | |
b353a487 JD |
619 | |
620 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
621 | const char *buf, size_t count) | |
1da177e4 | 622 | { |
b353a487 | 623 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
624 | struct i2c_client *client = to_i2c_client(dev); |
625 | struct lm85_data *data = i2c_get_clientdata(client); | |
626 | long val = simple_strtol(buf, NULL, 10); | |
627 | ||
9a61bf63 | 628 | mutex_lock(&data->update_lock); |
1da177e4 LT |
629 | data->in_max[nr] = INS_TO_REG(nr, val); |
630 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 631 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
632 | return count; |
633 | } | |
b353a487 | 634 | |
1da177e4 | 635 | #define show_in_reg(offset) \ |
b353a487 JD |
636 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
637 | show_in, NULL, offset); \ | |
638 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
639 | show_in_min, set_in_min, offset); \ | |
640 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
641 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
642 | |
643 | show_in_reg(0); | |
644 | show_in_reg(1); | |
645 | show_in_reg(2); | |
646 | show_in_reg(3); | |
647 | show_in_reg(4); | |
6b9aad2d JD |
648 | show_in_reg(5); |
649 | show_in_reg(6); | |
650 | show_in_reg(7); | |
1da177e4 LT |
651 | |
652 | /* Temps */ | |
653 | ||
b353a487 JD |
654 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
655 | char *buf) | |
1da177e4 | 656 | { |
b353a487 | 657 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
658 | struct lm85_data *data = lm85_update_device(dev); |
659 | return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr], | |
5a4d3ef3 | 660 | data->temp_ext[nr])); |
1da177e4 | 661 | } |
b353a487 JD |
662 | |
663 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
664 | char *buf) | |
1da177e4 | 665 | { |
b353a487 | 666 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
667 | struct lm85_data *data = lm85_update_device(dev); |
668 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) ); | |
669 | } | |
b353a487 JD |
670 | |
671 | static ssize_t set_temp_min(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->temp_min[nr] = TEMP_TO_REG(val); |
681 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 682 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
683 | return count; |
684 | } | |
b353a487 JD |
685 | |
686 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
687 | char *buf) | |
1da177e4 | 688 | { |
b353a487 | 689 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
690 | struct lm85_data *data = lm85_update_device(dev); |
691 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) ); | |
692 | } | |
b353a487 JD |
693 | |
694 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
695 | const char *buf, size_t count) | |
1da177e4 | 696 | { |
b353a487 | 697 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
698 | struct i2c_client *client = to_i2c_client(dev); |
699 | struct lm85_data *data = i2c_get_clientdata(client); | |
700 | long val = simple_strtol(buf, NULL, 10); | |
701 | ||
9a61bf63 | 702 | mutex_lock(&data->update_lock); |
1da177e4 LT |
703 | data->temp_max[nr] = TEMP_TO_REG(val); |
704 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 705 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
706 | return count; |
707 | } | |
b353a487 | 708 | |
1da177e4 | 709 | #define show_temp_reg(offset) \ |
b353a487 JD |
710 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
711 | show_temp, NULL, offset - 1); \ | |
712 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
713 | show_temp_min, set_temp_min, offset - 1); \ | |
714 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
715 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
716 | |
717 | show_temp_reg(1); | |
718 | show_temp_reg(2); | |
719 | show_temp_reg(3); | |
720 | ||
721 | ||
722 | /* Automatic PWM control */ | |
723 | ||
b353a487 JD |
724 | static ssize_t show_pwm_auto_channels(struct device *dev, |
725 | struct device_attribute *attr, char *buf) | |
1da177e4 | 726 | { |
b353a487 | 727 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
728 | struct lm85_data *data = lm85_update_device(dev); |
729 | return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config)); | |
730 | } | |
b353a487 JD |
731 | |
732 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
733 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 734 | { |
b353a487 | 735 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
736 | struct i2c_client *client = to_i2c_client(dev); |
737 | struct lm85_data *data = i2c_get_clientdata(client); | |
738 | long val = simple_strtol(buf, NULL, 10); | |
739 | ||
9a61bf63 | 740 | mutex_lock(&data->update_lock); |
1da177e4 LT |
741 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
742 | | ZONE_TO_REG(val) ; | |
743 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
744 | data->autofan[nr].config); | |
9a61bf63 | 745 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
746 | return count; |
747 | } | |
b353a487 JD |
748 | |
749 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
750 | struct device_attribute *attr, char *buf) | |
1da177e4 | 751 | { |
b353a487 | 752 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
753 | struct lm85_data *data = lm85_update_device(dev); |
754 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); | |
755 | } | |
b353a487 JD |
756 | |
757 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
758 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 759 | { |
b353a487 | 760 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
761 | struct i2c_client *client = to_i2c_client(dev); |
762 | struct lm85_data *data = i2c_get_clientdata(client); | |
763 | long val = simple_strtol(buf, NULL, 10); | |
764 | ||
9a61bf63 | 765 | mutex_lock(&data->update_lock); |
1da177e4 LT |
766 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
767 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
768 | data->autofan[nr].min_pwm); | |
9a61bf63 | 769 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
770 | return count; |
771 | } | |
b353a487 JD |
772 | |
773 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, | |
774 | struct device_attribute *attr, char *buf) | |
1da177e4 | 775 | { |
b353a487 | 776 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
777 | struct lm85_data *data = lm85_update_device(dev); |
778 | return sprintf(buf,"%d\n", data->autofan[nr].min_off); | |
779 | } | |
b353a487 JD |
780 | |
781 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, | |
782 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 783 | { |
b353a487 | 784 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
785 | struct i2c_client *client = to_i2c_client(dev); |
786 | struct lm85_data *data = i2c_get_clientdata(client); | |
787 | long val = simple_strtol(buf, NULL, 10); | |
788 | ||
9a61bf63 | 789 | mutex_lock(&data->update_lock); |
1da177e4 LT |
790 | data->autofan[nr].min_off = val; |
791 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0] | |
792 | | data->syncpwm3 | |
793 | | (data->autofan[0].min_off ? 0x20 : 0) | |
794 | | (data->autofan[1].min_off ? 0x40 : 0) | |
795 | | (data->autofan[2].min_off ? 0x80 : 0) | |
796 | ); | |
9a61bf63 | 797 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
798 | return count; |
799 | } | |
b353a487 JD |
800 | |
801 | static ssize_t show_pwm_auto_pwm_freq(struct device *dev, | |
802 | struct device_attribute *attr, char *buf) | |
1da177e4 | 803 | { |
b353a487 | 804 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
805 | struct lm85_data *data = lm85_update_device(dev); |
806 | return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq)); | |
807 | } | |
b353a487 JD |
808 | |
809 | static ssize_t set_pwm_auto_pwm_freq(struct device *dev, | |
810 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 811 | { |
b353a487 | 812 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
813 | struct i2c_client *client = to_i2c_client(dev); |
814 | struct lm85_data *data = i2c_get_clientdata(client); | |
815 | long val = simple_strtol(buf, NULL, 10); | |
816 | ||
9a61bf63 | 817 | mutex_lock(&data->update_lock); |
1da177e4 LT |
818 | data->autofan[nr].freq = FREQ_TO_REG(val); |
819 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
820 | (data->zone[nr].range << 4) | |
821 | | data->autofan[nr].freq | |
822 | ); | |
9a61bf63 | 823 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
824 | return count; |
825 | } | |
b353a487 | 826 | |
1da177e4 | 827 | #define pwm_auto(offset) \ |
b353a487 JD |
828 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
829 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
830 | set_pwm_auto_channels, offset - 1); \ | |
831 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
832 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
833 | set_pwm_auto_pwm_min, offset - 1); \ | |
834 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
835 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
836 | set_pwm_auto_pwm_minctl, offset - 1); \ | |
837 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq, \ | |
838 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq, \ | |
839 | set_pwm_auto_pwm_freq, offset - 1); | |
840 | ||
1da177e4 LT |
841 | pwm_auto(1); |
842 | pwm_auto(2); | |
843 | pwm_auto(3); | |
844 | ||
845 | /* Temperature settings for automatic PWM control */ | |
846 | ||
b353a487 JD |
847 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
848 | struct device_attribute *attr, char *buf) | |
1da177e4 | 849 | { |
b353a487 | 850 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
851 | struct lm85_data *data = lm85_update_device(dev); |
852 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) - | |
853 | HYST_FROM_REG(data->zone[nr].hyst)); | |
854 | } | |
b353a487 JD |
855 | |
856 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
857 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 858 | { |
b353a487 | 859 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
860 | struct i2c_client *client = to_i2c_client(dev); |
861 | struct lm85_data *data = i2c_get_clientdata(client); | |
862 | int min; | |
863 | long val = simple_strtol(buf, NULL, 10); | |
864 | ||
9a61bf63 | 865 | mutex_lock(&data->update_lock); |
1da177e4 LT |
866 | min = TEMP_FROM_REG(data->zone[nr].limit); |
867 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
868 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
869 | if ( nr == 0 || nr == 1 ) { | |
870 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
871 | (data->zone[0].hyst << 4) | |
872 | | data->zone[1].hyst | |
873 | ); | |
874 | } else { | |
875 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
876 | (data->zone[2].hyst << 4) | |
877 | ); | |
878 | } | |
9a61bf63 | 879 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
880 | return count; |
881 | } | |
b353a487 JD |
882 | |
883 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
884 | struct device_attribute *attr, char *buf) | |
1da177e4 | 885 | { |
b353a487 | 886 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
887 | struct lm85_data *data = lm85_update_device(dev); |
888 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) ); | |
889 | } | |
b353a487 JD |
890 | |
891 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
892 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 893 | { |
b353a487 | 894 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
895 | struct i2c_client *client = to_i2c_client(dev); |
896 | struct lm85_data *data = i2c_get_clientdata(client); | |
897 | long val = simple_strtol(buf, NULL, 10); | |
898 | ||
9a61bf63 | 899 | mutex_lock(&data->update_lock); |
1da177e4 LT |
900 | data->zone[nr].limit = TEMP_TO_REG(val); |
901 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
902 | data->zone[nr].limit); | |
903 | ||
904 | /* Update temp_auto_max and temp_auto_range */ | |
905 | data->zone[nr].range = RANGE_TO_REG( | |
906 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
907 | TEMP_FROM_REG(data->zone[nr].limit)); | |
908 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
909 | ((data->zone[nr].range & 0x0f) << 4) | |
910 | | (data->autofan[nr].freq & 0x07)); | |
911 | ||
912 | /* Update temp_auto_hyst and temp_auto_off */ | |
913 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
914 | data->zone[nr].limit) - TEMP_FROM_REG( | |
915 | data->zone[nr].off_desired)); | |
916 | if ( nr == 0 || nr == 1 ) { | |
917 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
918 | (data->zone[0].hyst << 4) | |
919 | | data->zone[1].hyst | |
920 | ); | |
921 | } else { | |
922 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
923 | (data->zone[2].hyst << 4) | |
924 | ); | |
925 | } | |
9a61bf63 | 926 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
927 | return count; |
928 | } | |
b353a487 JD |
929 | |
930 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
931 | struct device_attribute *attr, char *buf) | |
1da177e4 | 932 | { |
b353a487 | 933 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
934 | struct lm85_data *data = lm85_update_device(dev); |
935 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) + | |
936 | RANGE_FROM_REG(data->zone[nr].range)); | |
937 | } | |
b353a487 JD |
938 | |
939 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
940 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 941 | { |
b353a487 | 942 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
943 | struct i2c_client *client = to_i2c_client(dev); |
944 | struct lm85_data *data = i2c_get_clientdata(client); | |
945 | int min; | |
946 | long val = simple_strtol(buf, NULL, 10); | |
947 | ||
9a61bf63 | 948 | mutex_lock(&data->update_lock); |
1da177e4 LT |
949 | min = TEMP_FROM_REG(data->zone[nr].limit); |
950 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
951 | data->zone[nr].range = RANGE_TO_REG( | |
952 | val - min); | |
953 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
954 | ((data->zone[nr].range & 0x0f) << 4) | |
955 | | (data->autofan[nr].freq & 0x07)); | |
9a61bf63 | 956 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
957 | return count; |
958 | } | |
b353a487 JD |
959 | |
960 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
961 | struct device_attribute *attr, char *buf) | |
1da177e4 | 962 | { |
b353a487 | 963 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
964 | struct lm85_data *data = lm85_update_device(dev); |
965 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical)); | |
966 | } | |
b353a487 JD |
967 | |
968 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
969 | struct device_attribute *attr,const char *buf, size_t count) | |
1da177e4 | 970 | { |
b353a487 | 971 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
972 | struct i2c_client *client = to_i2c_client(dev); |
973 | struct lm85_data *data = i2c_get_clientdata(client); | |
974 | long val = simple_strtol(buf, NULL, 10); | |
975 | ||
9a61bf63 | 976 | mutex_lock(&data->update_lock); |
1da177e4 LT |
977 | data->zone[nr].critical = TEMP_TO_REG(val); |
978 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
979 | data->zone[nr].critical); | |
9a61bf63 | 980 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
981 | return count; |
982 | } | |
b353a487 | 983 | |
1da177e4 | 984 | #define temp_auto(offset) \ |
b353a487 JD |
985 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
986 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
987 | set_temp_auto_temp_off, offset - 1); \ | |
988 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
989 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
990 | set_temp_auto_temp_min, offset - 1); \ | |
991 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
992 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
993 | set_temp_auto_temp_max, offset - 1); \ | |
994 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
995 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
996 | set_temp_auto_temp_crit, offset - 1); | |
997 | ||
1da177e4 LT |
998 | temp_auto(1); |
999 | temp_auto(2); | |
1000 | temp_auto(3); | |
1001 | ||
d8d20615 | 1002 | static int lm85_attach_adapter(struct i2c_adapter *adapter) |
1da177e4 LT |
1003 | { |
1004 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
1005 | return 0; | |
2ed2dc3c | 1006 | return i2c_probe(adapter, &addr_data, lm85_detect); |
1da177e4 LT |
1007 | } |
1008 | ||
0501a381 | 1009 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
1010 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1011 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1012 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1013 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1014 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1015 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1016 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1017 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
bf76e9d3 JD |
1018 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1019 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1020 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1021 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
b353a487 JD |
1022 | |
1023 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1024 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1025 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1026 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1027 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1028 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1029 | ||
1030 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1031 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1032 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1033 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1034 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1035 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1036 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1037 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1038 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1039 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1040 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1041 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
bf76e9d3 JD |
1042 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1043 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1044 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1045 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
b353a487 JD |
1046 | |
1047 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1048 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1049 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1050 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1051 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1052 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1053 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1054 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1055 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
bf76e9d3 JD |
1056 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1057 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1058 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1059 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
1060 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
b353a487 JD |
1061 | |
1062 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1063 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1064 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1065 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1066 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1067 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1068 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1069 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1070 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
1071 | &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr, | |
1072 | &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr, | |
1073 | &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr, | |
1074 | ||
1075 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1076 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1077 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1078 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1079 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1080 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1081 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1082 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1083 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1084 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1085 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1086 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1087 | ||
0501a381 MH |
1088 | &dev_attr_vrm.attr, |
1089 | &dev_attr_cpu0_vid.attr, | |
1090 | &dev_attr_alarms.attr, | |
0501a381 MH |
1091 | NULL |
1092 | }; | |
1093 | ||
1094 | static const struct attribute_group lm85_group = { | |
1095 | .attrs = lm85_attributes, | |
1096 | }; | |
1097 | ||
6b9aad2d | 1098 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1099 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1100 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1101 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
bf76e9d3 | 1102 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
0501a381 MH |
1103 | NULL |
1104 | }; | |
1105 | ||
6b9aad2d JD |
1106 | static const struct attribute_group lm85_group_in4 = { |
1107 | .attrs = lm85_attributes_in4, | |
1108 | }; | |
1109 | ||
1110 | static struct attribute *lm85_attributes_in567[] = { | |
1111 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1112 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1113 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1114 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1115 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1116 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1117 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1118 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1119 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
bf76e9d3 JD |
1120 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1121 | &sensor_dev_attr_in6_alarm.dev_attr.attr, | |
1122 | &sensor_dev_attr_in7_alarm.dev_attr.attr, | |
6b9aad2d JD |
1123 | NULL |
1124 | }; | |
1125 | ||
1126 | static const struct attribute_group lm85_group_in567 = { | |
1127 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1128 | }; |
1129 | ||
d8d20615 | 1130 | static int lm85_detect(struct i2c_adapter *adapter, int address, |
1da177e4 LT |
1131 | int kind) |
1132 | { | |
1133 | int company, verstep ; | |
1134 | struct i2c_client *new_client = NULL; | |
1135 | struct lm85_data *data; | |
1136 | int err = 0; | |
1137 | const char *type_name = ""; | |
1138 | ||
1da177e4 LT |
1139 | if (!i2c_check_functionality(adapter, |
1140 | I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1141 | /* We need to be able to do byte I/O */ | |
1142 | goto ERROR0 ; | |
1143 | }; | |
1144 | ||
1145 | /* OK. For now, we presume we have a valid client. We now create the | |
1146 | client structure, even though we cannot fill it completely yet. | |
1147 | But it allows us to access lm85_{read,write}_value. */ | |
1148 | ||
ba9c2e8d | 1149 | if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) { |
1da177e4 LT |
1150 | err = -ENOMEM; |
1151 | goto ERROR0; | |
1152 | } | |
1da177e4 LT |
1153 | |
1154 | new_client = &data->client; | |
1155 | i2c_set_clientdata(new_client, data); | |
1156 | new_client->addr = address; | |
1157 | new_client->adapter = adapter; | |
1158 | new_client->driver = &lm85_driver; | |
1159 | new_client->flags = 0; | |
1160 | ||
1161 | /* Now, we do the remaining detection. */ | |
1162 | ||
1163 | company = lm85_read_value(new_client, LM85_REG_COMPANY); | |
1164 | verstep = lm85_read_value(new_client, LM85_REG_VERSTEP); | |
1165 | ||
1166 | dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" | |
1167 | " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1168 | i2c_adapter_id(new_client->adapter), new_client->addr, | |
1169 | company, verstep); | |
1170 | ||
1171 | /* If auto-detecting, Determine the chip type. */ | |
1172 | if (kind <= 0) { | |
1173 | dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n", | |
1174 | i2c_adapter_id(adapter), address ); | |
1175 | if( company == LM85_COMPANY_NATIONAL | |
1176 | && verstep == LM85_VERSTEP_LM85C ) { | |
1177 | kind = lm85c ; | |
1178 | } else if( company == LM85_COMPANY_NATIONAL | |
1179 | && verstep == LM85_VERSTEP_LM85B ) { | |
1180 | kind = lm85b ; | |
1181 | } else if( company == LM85_COMPANY_NATIONAL | |
1182 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1183 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1184 | " Defaulting to LM85.\n", verstep); | |
1185 | kind = any_chip ; | |
1186 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1187 | && verstep == LM85_VERSTEP_ADM1027 ) { | |
1188 | kind = adm1027 ; | |
1189 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1190 | && (verstep == LM85_VERSTEP_ADT7463 | |
1191 | || verstep == LM85_VERSTEP_ADT7463C) ) { | |
1192 | kind = adt7463 ; | |
1193 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1194 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1195 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1196 | " Defaulting to Generic LM85.\n", verstep ); | |
1197 | kind = any_chip ; | |
1198 | } else if( company == LM85_COMPANY_SMSC | |
1199 | && (verstep == LM85_VERSTEP_EMC6D100_A0 | |
1200 | || verstep == LM85_VERSTEP_EMC6D100_A1) ) { | |
1201 | /* Unfortunately, we can't tell a '100 from a '101 | |
1202 | * from the registers. Since a '101 is a '100 | |
1203 | * in a package with fewer pins and therefore no | |
1204 | * 3.3V, 1.5V or 1.8V inputs, perhaps if those | |
1205 | * inputs read 0, then it's a '101. | |
1206 | */ | |
1207 | kind = emc6d100 ; | |
1208 | } else if( company == LM85_COMPANY_SMSC | |
1209 | && verstep == LM85_VERSTEP_EMC6D102) { | |
1210 | kind = emc6d102 ; | |
1211 | } else if( company == LM85_COMPANY_SMSC | |
1212 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1213 | dev_err(&adapter->dev, "lm85: Detected SMSC chip\n"); | |
1214 | dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x" | |
1215 | " Defaulting to Generic LM85.\n", verstep ); | |
1216 | kind = any_chip ; | |
1217 | } else if( kind == any_chip | |
1218 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1219 | dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n"); | |
1220 | /* Leave kind as "any_chip" */ | |
1221 | } else { | |
1222 | dev_dbg(&adapter->dev, "Autodetection failed\n"); | |
1223 | /* Not an LM85 ... */ | |
1224 | if( kind == any_chip ) { /* User used force=x,y */ | |
1225 | dev_err(&adapter->dev, "Generic LM85 Version 6 not" | |
1226 | " found at %d,0x%02x. Try force_lm85c.\n", | |
1227 | i2c_adapter_id(adapter), address ); | |
1228 | } | |
1229 | err = 0 ; | |
1230 | goto ERROR1; | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | /* Fill in the chip specific driver values */ | |
1235 | if ( kind == any_chip ) { | |
1236 | type_name = "lm85"; | |
1237 | } else if ( kind == lm85b ) { | |
1238 | type_name = "lm85b"; | |
1239 | } else if ( kind == lm85c ) { | |
1240 | type_name = "lm85c"; | |
1241 | } else if ( kind == adm1027 ) { | |
1242 | type_name = "adm1027"; | |
1243 | } else if ( kind == adt7463 ) { | |
1244 | type_name = "adt7463"; | |
1245 | } else if ( kind == emc6d100){ | |
1246 | type_name = "emc6d100"; | |
1247 | } else if ( kind == emc6d102 ) { | |
1248 | type_name = "emc6d102"; | |
1249 | } | |
1250 | strlcpy(new_client->name, type_name, I2C_NAME_SIZE); | |
1251 | ||
1252 | /* Fill in the remaining client fields */ | |
1253 | data->type = kind; | |
1254 | data->valid = 0; | |
9a61bf63 | 1255 | mutex_init(&data->update_lock); |
1da177e4 LT |
1256 | |
1257 | /* Tell the I2C layer a new client has arrived */ | |
1258 | if ((err = i2c_attach_client(new_client))) | |
1259 | goto ERROR1; | |
1260 | ||
1261 | /* Set the VRM version */ | |
303760b4 | 1262 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1263 | |
1264 | /* Initialize the LM85 chip */ | |
1265 | lm85_init_client(new_client); | |
1266 | ||
1267 | /* Register sysfs hooks */ | |
0501a381 | 1268 | if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group))) |
943b0830 | 1269 | goto ERROR2; |
1da177e4 | 1270 | |
9c516ef4 JD |
1271 | /* The ADT7463 has an optional VRM 10 mode where pin 21 is used |
1272 | as a sixth digital VID input rather than an analog input. */ | |
1273 | data->vid = lm85_read_value(new_client, LM85_REG_VID); | |
0501a381 | 1274 | if (!(kind == adt7463 && (data->vid & 0x80))) |
6b9aad2d JD |
1275 | if ((err = sysfs_create_group(&new_client->dev.kobj, |
1276 | &lm85_group_in4))) | |
1277 | goto ERROR3; | |
1278 | ||
1279 | /* The EMC6D100 has 3 additional voltage inputs */ | |
1280 | if (kind == emc6d100) | |
1281 | if ((err = sysfs_create_group(&new_client->dev.kobj, | |
1282 | &lm85_group_in567))) | |
0501a381 MH |
1283 | goto ERROR3; |
1284 | ||
1beeffe4 TJ |
1285 | data->hwmon_dev = hwmon_device_register(&new_client->dev); |
1286 | if (IS_ERR(data->hwmon_dev)) { | |
1287 | err = PTR_ERR(data->hwmon_dev); | |
0501a381 | 1288 | goto ERROR3; |
9c516ef4 JD |
1289 | } |
1290 | ||
1da177e4 LT |
1291 | return 0; |
1292 | ||
1293 | /* Error out and cleanup code */ | |
0501a381 MH |
1294 | ERROR3: |
1295 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group); | |
6b9aad2d JD |
1296 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in4); |
1297 | if (kind == emc6d100) | |
1298 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in567); | |
943b0830 MH |
1299 | ERROR2: |
1300 | i2c_detach_client(new_client); | |
1da177e4 LT |
1301 | ERROR1: |
1302 | kfree(data); | |
1303 | ERROR0: | |
1304 | return err; | |
1305 | } | |
1306 | ||
d8d20615 | 1307 | static int lm85_detach_client(struct i2c_client *client) |
1da177e4 | 1308 | { |
943b0830 | 1309 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1310 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1311 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1312 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1313 | if (data->type == emc6d100) | |
1314 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
1da177e4 | 1315 | i2c_detach_client(client); |
943b0830 | 1316 | kfree(data); |
1da177e4 LT |
1317 | return 0; |
1318 | } | |
1319 | ||
1320 | ||
d8d20615 | 1321 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1322 | { |
1323 | int res; | |
1324 | ||
1325 | /* What size location is it? */ | |
1326 | switch( reg ) { | |
1327 | case LM85_REG_FAN(0) : /* Read WORD data */ | |
1328 | case LM85_REG_FAN(1) : | |
1329 | case LM85_REG_FAN(2) : | |
1330 | case LM85_REG_FAN(3) : | |
1331 | case LM85_REG_FAN_MIN(0) : | |
1332 | case LM85_REG_FAN_MIN(1) : | |
1333 | case LM85_REG_FAN_MIN(2) : | |
1334 | case LM85_REG_FAN_MIN(3) : | |
1335 | case LM85_REG_ALARM1 : /* Read both bytes at once */ | |
1336 | res = i2c_smbus_read_byte_data(client, reg) & 0xff ; | |
1337 | res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ; | |
1338 | break ; | |
1339 | case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */ | |
1340 | res = i2c_smbus_read_byte_data(client, reg) << 8 ; | |
1341 | res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ; | |
1342 | break ; | |
1343 | default: /* Read BYTE data */ | |
1344 | res = i2c_smbus_read_byte_data(client, reg); | |
1345 | break ; | |
1346 | } | |
1347 | ||
1348 | return res ; | |
1349 | } | |
1350 | ||
d8d20615 | 1351 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 LT |
1352 | { |
1353 | int res ; | |
1354 | ||
1355 | switch( reg ) { | |
1356 | case LM85_REG_FAN(0) : /* Write WORD data */ | |
1357 | case LM85_REG_FAN(1) : | |
1358 | case LM85_REG_FAN(2) : | |
1359 | case LM85_REG_FAN(3) : | |
1360 | case LM85_REG_FAN_MIN(0) : | |
1361 | case LM85_REG_FAN_MIN(1) : | |
1362 | case LM85_REG_FAN_MIN(2) : | |
1363 | case LM85_REG_FAN_MIN(3) : | |
1364 | /* NOTE: ALARM is read only, so not included here */ | |
1365 | res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ; | |
1366 | res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ; | |
1367 | break ; | |
1368 | case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */ | |
1369 | res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff); | |
1370 | res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ; | |
1371 | break ; | |
1372 | default: /* Write BYTE data */ | |
1373 | res = i2c_smbus_write_byte_data(client, reg, value); | |
1374 | break ; | |
1375 | } | |
1376 | ||
1377 | return res ; | |
1378 | } | |
1379 | ||
d8d20615 | 1380 | static void lm85_init_client(struct i2c_client *client) |
1da177e4 LT |
1381 | { |
1382 | int value; | |
1383 | struct lm85_data *data = i2c_get_clientdata(client); | |
1384 | ||
1385 | dev_dbg(&client->dev, "Initializing device\n"); | |
1386 | ||
1387 | /* Warn if part was not "READY" */ | |
1388 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1389 | dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value); | |
1390 | if( value & 0x02 ) { | |
1391 | dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n", | |
1392 | i2c_adapter_id(client->adapter), client->addr ); | |
1393 | }; | |
1394 | if( ! (value & 0x04) ) { | |
1395 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", | |
1396 | i2c_adapter_id(client->adapter), client->addr ); | |
1397 | }; | |
1398 | if( value & 0x10 | |
1399 | && ( data->type == adm1027 | |
1400 | || data->type == adt7463 ) ) { | |
1401 | dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. " | |
1402 | "Please report this to the lm85 maintainer.\n", | |
1403 | i2c_adapter_id(client->adapter), client->addr ); | |
1404 | }; | |
1405 | ||
1406 | /* WE INTENTIONALLY make no changes to the limits, | |
1407 | * offsets, pwms, fans and zones. If they were | |
1408 | * configured, we don't want to mess with them. | |
1409 | * If they weren't, the default is 100% PWM, no | |
1410 | * control and will suffice until 'sensors -s' | |
1411 | * can be run by the user. | |
1412 | */ | |
1413 | ||
1414 | /* Start monitoring */ | |
1415 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1416 | /* Try to clear LOCK, Set START, save everything else */ | |
1417 | value = (value & ~ 0x02) | 0x01 ; | |
1418 | dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); | |
1419 | lm85_write_value(client, LM85_REG_CONFIG, value); | |
1420 | } | |
1421 | ||
1422 | static struct lm85_data *lm85_update_device(struct device *dev) | |
1423 | { | |
1424 | struct i2c_client *client = to_i2c_client(dev); | |
1425 | struct lm85_data *data = i2c_get_clientdata(client); | |
1426 | int i; | |
1427 | ||
9a61bf63 | 1428 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1429 | |
1430 | if ( !data->valid || | |
1431 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) { | |
1432 | /* Things that change quickly */ | |
1433 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1434 | ||
1435 | /* Have to read extended bits first to "freeze" the | |
1436 | * more significant bits that are read later. | |
5a4d3ef3 JD |
1437 | * There are 2 additional resolution bits per channel and we |
1438 | * have room for 4, so we shift them to the left. | |
1da177e4 LT |
1439 | */ |
1440 | if ( (data->type == adm1027) || (data->type == adt7463) ) { | |
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 | ||
1447 | for(i = 0; i <= 4; i++) | |
5a4d3ef3 | 1448 | data->in_ext[i] = ((val>>(i * 2))&0x03) << 2; |
1da177e4 LT |
1449 | |
1450 | for(i = 0; i <= 2; i++) | |
5a4d3ef3 | 1451 | data->temp_ext[i] = (val>>((i + 4) * 2))&0x0c; |
1da177e4 LT |
1452 | } |
1453 | ||
9c516ef4 JD |
1454 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1455 | ||
1456 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1457 | data->in[i] = |
1458 | lm85_read_value(client, LM85_REG_IN(i)); | |
1459 | } | |
1460 | ||
9c516ef4 JD |
1461 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1462 | data->in[4] = lm85_read_value(client, | |
1463 | LM85_REG_IN(4)); | |
1464 | } | |
1465 | ||
1da177e4 LT |
1466 | for (i = 0; i <= 3; ++i) { |
1467 | data->fan[i] = | |
1468 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1469 | } | |
1470 | ||
1471 | for (i = 0; i <= 2; ++i) { | |
1472 | data->temp[i] = | |
1473 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1474 | } | |
1475 | ||
1476 | for (i = 0; i <= 2; ++i) { | |
1477 | data->pwm[i] = | |
1478 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1479 | } | |
1480 | ||
1481 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1482 | ||
1483 | if ( data->type == adt7463 ) { | |
1484 | if( data->therm_total < ULONG_MAX - 256 ) { | |
1485 | data->therm_total += | |
1486 | lm85_read_value(client, ADT7463_REG_THERM ); | |
1487 | } | |
1488 | } else if ( data->type == emc6d100 ) { | |
1489 | /* Three more voltage sensors */ | |
1490 | for (i = 5; i <= 7; ++i) { | |
1491 | data->in[i] = | |
1492 | lm85_read_value(client, EMC6D100_REG_IN(i)); | |
1493 | } | |
1494 | /* More alarm bits */ | |
1495 | data->alarms |= | |
1496 | lm85_read_value(client, EMC6D100_REG_ALARM3) << 16; | |
1497 | } else if (data->type == emc6d102 ) { | |
1498 | /* Have to read LSB bits after the MSB ones because | |
1499 | the reading of the MSB bits has frozen the | |
1500 | LSBs (backward from the ADM1027). | |
1501 | */ | |
1502 | int ext1 = lm85_read_value(client, | |
1503 | EMC6D102_REG_EXTEND_ADC1); | |
1504 | int ext2 = lm85_read_value(client, | |
1505 | EMC6D102_REG_EXTEND_ADC2); | |
1506 | int ext3 = lm85_read_value(client, | |
1507 | EMC6D102_REG_EXTEND_ADC3); | |
1508 | int ext4 = lm85_read_value(client, | |
1509 | EMC6D102_REG_EXTEND_ADC4); | |
1510 | data->in_ext[0] = ext3 & 0x0f; | |
1511 | data->in_ext[1] = ext4 & 0x0f; | |
1512 | data->in_ext[2] = (ext4 >> 4) & 0x0f; | |
1513 | data->in_ext[3] = (ext3 >> 4) & 0x0f; | |
1514 | data->in_ext[4] = (ext2 >> 4) & 0x0f; | |
1515 | ||
1516 | data->temp_ext[0] = ext1 & 0x0f; | |
1517 | data->temp_ext[1] = ext2 & 0x0f; | |
1518 | data->temp_ext[2] = (ext1 >> 4) & 0x0f; | |
1519 | } | |
1520 | ||
1521 | data->last_reading = jiffies ; | |
1522 | }; /* last_reading */ | |
1523 | ||
1524 | if ( !data->valid || | |
1525 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) { | |
1526 | /* Things that don't change often */ | |
1527 | dev_dbg(&client->dev, "Reading config values\n"); | |
1528 | ||
9c516ef4 | 1529 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1530 | data->in_min[i] = |
1531 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1532 | data->in_max[i] = | |
1533 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
1534 | } | |
1535 | ||
9c516ef4 JD |
1536 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1537 | data->in_min[4] = lm85_read_value(client, | |
1538 | LM85_REG_IN_MIN(4)); | |
1539 | data->in_max[4] = lm85_read_value(client, | |
1540 | LM85_REG_IN_MAX(4)); | |
1541 | } | |
1542 | ||
1da177e4 LT |
1543 | if ( data->type == emc6d100 ) { |
1544 | for (i = 5; i <= 7; ++i) { | |
1545 | data->in_min[i] = | |
1546 | lm85_read_value(client, EMC6D100_REG_IN_MIN(i)); | |
1547 | data->in_max[i] = | |
1548 | lm85_read_value(client, EMC6D100_REG_IN_MAX(i)); | |
1549 | } | |
1550 | } | |
1551 | ||
1552 | for (i = 0; i <= 3; ++i) { | |
1553 | data->fan_min[i] = | |
1554 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1555 | } | |
1556 | ||
1557 | for (i = 0; i <= 2; ++i) { | |
1558 | data->temp_min[i] = | |
1559 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1560 | data->temp_max[i] = | |
1561 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1562 | } | |
1563 | ||
1da177e4 LT |
1564 | for (i = 0; i <= 2; ++i) { |
1565 | int val ; | |
1566 | data->autofan[i].config = | |
1567 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1568 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
1569 | data->autofan[i].freq = val & 0x07 ; | |
1570 | data->zone[i].range = (val >> 4) & 0x0f ; | |
1571 | data->autofan[i].min_pwm = | |
1572 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1573 | data->zone[i].limit = | |
1574 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1575 | data->zone[i].critical = | |
1576 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1577 | } | |
1578 | ||
1579 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1580 | data->smooth[0] = i & 0x0f ; | |
1581 | data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */ | |
1582 | data->autofan[0].min_off = (i & 0x20) != 0 ; | |
1583 | data->autofan[1].min_off = (i & 0x40) != 0 ; | |
1584 | data->autofan[2].min_off = (i & 0x80) != 0 ; | |
1585 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2); | |
1586 | data->smooth[1] = (i>>4) & 0x0f ; | |
1587 | data->smooth[2] = i & 0x0f ; | |
1588 | ||
1589 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
1590 | data->zone[0].hyst = (i>>4) & 0x0f ; | |
1591 | data->zone[1].hyst = i & 0x0f ; | |
1592 | ||
1593 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
1594 | data->zone[2].hyst = (i>>4) & 0x0f ; | |
1595 | ||
1596 | if ( (data->type == lm85b) || (data->type == lm85c) ) { | |
1597 | data->tach_mode = lm85_read_value(client, | |
1598 | LM85_REG_TACH_MODE ); | |
1599 | data->spinup_ctl = lm85_read_value(client, | |
1600 | LM85_REG_SPINUP_CTL ); | |
1601 | } else if ( (data->type == adt7463) || (data->type == adm1027) ) { | |
1602 | if ( data->type == adt7463 ) { | |
1603 | for (i = 0; i <= 2; ++i) { | |
1604 | data->oppoint[i] = lm85_read_value(client, | |
1605 | ADT7463_REG_OPPOINT(i) ); | |
1606 | } | |
1607 | data->tmin_ctl = lm85_read_value(client, | |
1608 | ADT7463_REG_TMIN_CTL1 ); | |
1609 | data->therm_limit = lm85_read_value(client, | |
1610 | ADT7463_REG_THERM_LIMIT ); | |
1611 | } | |
1612 | for (i = 0; i <= 2; ++i) { | |
1613 | data->temp_offset[i] = lm85_read_value(client, | |
1614 | ADM1027_REG_TEMP_OFFSET(i) ); | |
1615 | } | |
1616 | data->tach_mode = lm85_read_value(client, | |
1617 | ADM1027_REG_CONFIG3 ); | |
1618 | data->fan_ppr = lm85_read_value(client, | |
1619 | ADM1027_REG_FAN_PPR ); | |
1620 | } | |
1621 | ||
1622 | data->last_config = jiffies; | |
1623 | }; /* last_config */ | |
1624 | ||
1625 | data->valid = 1; | |
1626 | ||
9a61bf63 | 1627 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1628 | |
1629 | return data; | |
1630 | } | |
1631 | ||
1632 | ||
1633 | static int __init sm_lm85_init(void) | |
1634 | { | |
1635 | return i2c_add_driver(&lm85_driver); | |
1636 | } | |
1637 | ||
1638 | static void __exit sm_lm85_exit(void) | |
1639 | { | |
1640 | i2c_del_driver(&lm85_driver); | |
1641 | } | |
1642 | ||
1643 | /* Thanks to Richard Barrington for adding the LM85 to sensors-detect. | |
1644 | * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with | |
1645 | * post 2.7.0 CVS changes. | |
1646 | */ | |
1647 | MODULE_LICENSE("GPL"); | |
1648 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com"); | |
1649 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); | |
1650 | ||
1651 | module_init(sm_lm85_init); | |
1652 | module_exit(sm_lm85_exit); |