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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 */ | |
38 | static 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 | ||
126 | #define LM85_ALARM_IN0 0x0001 | |
127 | #define LM85_ALARM_IN1 0x0002 | |
128 | #define LM85_ALARM_IN2 0x0004 | |
129 | #define LM85_ALARM_IN3 0x0008 | |
130 | #define LM85_ALARM_TEMP1 0x0010 | |
131 | #define LM85_ALARM_TEMP2 0x0020 | |
132 | #define LM85_ALARM_TEMP3 0x0040 | |
133 | #define LM85_ALARM_ALARM2 0x0080 | |
134 | #define LM85_ALARM_IN4 0x0100 | |
135 | #define LM85_ALARM_RESERVED 0x0200 | |
136 | #define LM85_ALARM_FAN1 0x0400 | |
137 | #define LM85_ALARM_FAN2 0x0800 | |
138 | #define LM85_ALARM_FAN3 0x1000 | |
139 | #define LM85_ALARM_FAN4 0x2000 | |
140 | #define LM85_ALARM_TEMP1_FAULT 0x4000 | |
141 | #define LM85_ALARM_TEMP3_FAULT 0x8000 | |
142 | ||
143 | ||
144 | /* Conversions. Rounding and limit checking is only done on the TO_REG | |
145 | variants. Note that you should be a bit careful with which arguments | |
146 | these macros are called: arguments may be evaluated more than once. | |
147 | */ | |
148 | ||
149 | /* IN are scaled acording to built-in resistors */ | |
150 | static int lm85_scaling[] = { /* .001 Volts */ | |
151 | 2500, 2250, 3300, 5000, 12000, | |
152 | 3300, 1500, 1800 /*EMC6D100*/ | |
153 | }; | |
154 | #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from)) | |
155 | ||
156 | #define INS_TO_REG(n,val) \ | |
157 | SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255) | |
158 | ||
159 | #define INSEXT_FROM_REG(n,val,ext,scale) \ | |
160 | SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n]) | |
161 | ||
162 | #define INS_FROM_REG(n,val) INSEXT_FROM_REG(n,val,0,1) | |
163 | ||
164 | /* FAN speed is measured using 90kHz clock */ | |
165 | #define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534)) | |
166 | #define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val)) | |
167 | ||
168 | /* Temperature is reported in .001 degC increments */ | |
169 | #define TEMP_TO_REG(val) \ | |
170 | SENSORS_LIMIT(SCALE(val,1000,1),-127,127) | |
171 | #define TEMPEXT_FROM_REG(val,ext,scale) \ | |
172 | SCALE((val)*scale + (ext),scale,1000) | |
173 | #define TEMP_FROM_REG(val) \ | |
174 | TEMPEXT_FROM_REG(val,0,1) | |
175 | ||
176 | #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255)) | |
177 | #define PWM_FROM_REG(val) (val) | |
178 | ||
179 | ||
180 | /* ZONEs have the following parameters: | |
181 | * Limit (low) temp, 1. degC | |
182 | * Hysteresis (below limit), 1. degC (0-15) | |
183 | * Range of speed control, .1 degC (2-80) | |
184 | * Critical (high) temp, 1. degC | |
185 | * | |
186 | * FAN PWMs have the following parameters: | |
187 | * Reference Zone, 1, 2, 3, etc. | |
188 | * Spinup time, .05 sec | |
189 | * PWM value at limit/low temp, 1 count | |
190 | * PWM Frequency, 1. Hz | |
191 | * PWM is Min or OFF below limit, flag | |
192 | * Invert PWM output, flag | |
193 | * | |
194 | * Some chips filter the temp, others the fan. | |
195 | * Filter constant (or disabled) .1 seconds | |
196 | */ | |
197 | ||
198 | /* These are the zone temperature range encodings in .001 degree C */ | |
199 | static int lm85_range_map[] = { | |
200 | 2000, 2500, 3300, 4000, 5000, 6600, | |
201 | 8000, 10000, 13300, 16000, 20000, 26600, | |
202 | 32000, 40000, 53300, 80000 | |
203 | }; | |
204 | static int RANGE_TO_REG( int range ) | |
205 | { | |
206 | int i; | |
207 | ||
208 | if ( range < lm85_range_map[0] ) { | |
209 | return 0 ; | |
210 | } else if ( range > lm85_range_map[15] ) { | |
211 | return 15 ; | |
212 | } else { /* find closest match */ | |
213 | for ( i = 14 ; i >= 0 ; --i ) { | |
214 | if ( range > lm85_range_map[i] ) { /* range bracketed */ | |
215 | if ((lm85_range_map[i+1] - range) < | |
216 | (range - lm85_range_map[i])) { | |
217 | i++; | |
218 | break; | |
219 | } | |
220 | break; | |
221 | } | |
222 | } | |
223 | } | |
224 | return( i & 0x0f ); | |
225 | } | |
226 | #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f]) | |
227 | ||
228 | /* These are the Acoustic Enhancement, or Temperature smoothing encodings | |
229 | * NOTE: The enable/disable bit is INCLUDED in these encodings as the | |
230 | * MSB (bit 3, value 8). If the enable bit is 0, the encoded value | |
231 | * is ignored, or set to 0. | |
232 | */ | |
233 | /* These are the PWM frequency encodings */ | |
234 | static int lm85_freq_map[] = { /* .1 Hz */ | |
235 | 100, 150, 230, 300, 380, 470, 620, 940 | |
236 | }; | |
237 | static int FREQ_TO_REG( int freq ) | |
238 | { | |
239 | int i; | |
240 | ||
241 | if( freq >= lm85_freq_map[7] ) { return 7 ; } | |
242 | for( i = 0 ; i < 7 ; ++i ) | |
243 | if( freq <= lm85_freq_map[i] ) | |
244 | break ; | |
245 | return( i & 0x07 ); | |
246 | } | |
247 | #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07]) | |
248 | ||
249 | /* Since we can't use strings, I'm abusing these numbers | |
250 | * to stand in for the following meanings: | |
251 | * 1 -- PWM responds to Zone 1 | |
252 | * 2 -- PWM responds to Zone 2 | |
253 | * 3 -- PWM responds to Zone 3 | |
254 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
255 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
256 | * 0 -- PWM is always at 0% (ie, off) | |
257 | * -1 -- PWM is always at 100% | |
258 | * -2 -- PWM responds to manual control | |
259 | */ | |
260 | ||
261 | static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; | |
262 | #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07]) | |
263 | ||
264 | static int ZONE_TO_REG( int zone ) | |
265 | { | |
266 | int i; | |
267 | ||
268 | for( i = 0 ; i <= 7 ; ++i ) | |
269 | if( zone == lm85_zone_map[i] ) | |
270 | break ; | |
271 | if( i > 7 ) /* Not found. */ | |
272 | i = 3; /* Always 100% */ | |
273 | return( (i & 0x07)<<5 ); | |
274 | } | |
275 | ||
276 | #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15)) | |
277 | #define HYST_FROM_REG(val) ((val)*1000) | |
278 | ||
279 | #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127)) | |
280 | #define OFFSET_FROM_REG(val) ((val)*25) | |
281 | ||
282 | #define PPR_MASK(fan) (0x03<<(fan *2)) | |
283 | #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2)) | |
284 | #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1) | |
285 | ||
1da177e4 LT |
286 | /* Chip sampling rates |
287 | * | |
288 | * Some sensors are not updated more frequently than once per second | |
289 | * so it doesn't make sense to read them more often than that. | |
290 | * We cache the results and return the saved data if the driver | |
291 | * is called again before a second has elapsed. | |
292 | * | |
293 | * Also, there is significant configuration data for this chip | |
294 | * given the automatic PWM fan control that is possible. There | |
295 | * are about 47 bytes of config data to only 22 bytes of actual | |
296 | * readings. So, we keep the config data up to date in the cache | |
297 | * when it is written and only sample it once every 1 *minute* | |
298 | */ | |
299 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
300 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
301 | ||
1da177e4 LT |
302 | /* LM85 can automatically adjust fan speeds based on temperature |
303 | * This structure encapsulates an entire Zone config. There are | |
304 | * three zones (one for each temperature input) on the lm85 | |
305 | */ | |
306 | struct lm85_zone { | |
307 | s8 limit; /* Low temp limit */ | |
308 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
309 | u8 range; /* Temp range, encoded */ | |
310 | s8 critical; /* "All fans ON" temp limit */ | |
311 | u8 off_desired; /* Actual "off" temperature specified. Preserved | |
312 | * to prevent "drift" as other autofan control | |
313 | * values change. | |
314 | */ | |
315 | u8 max_desired; /* Actual "max" temperature specified. Preserved | |
316 | * to prevent "drift" as other autofan control | |
317 | * values change. | |
318 | */ | |
319 | }; | |
320 | ||
321 | struct lm85_autofan { | |
322 | u8 config; /* Register value */ | |
323 | u8 freq; /* PWM frequency, encoded */ | |
324 | u8 min_pwm; /* Minimum PWM value, encoded */ | |
325 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
326 | }; | |
327 | ||
ed6bafbf JD |
328 | /* For each registered chip, we need to keep some data in memory. |
329 | The structure is dynamically allocated. */ | |
1da177e4 LT |
330 | struct lm85_data { |
331 | struct i2c_client client; | |
1beeffe4 | 332 | struct device *hwmon_dev; |
1da177e4 LT |
333 | enum chips type; |
334 | ||
9a61bf63 | 335 | struct mutex update_lock; |
1da177e4 LT |
336 | int valid; /* !=0 if following fields are valid */ |
337 | unsigned long last_reading; /* In jiffies */ | |
338 | unsigned long last_config; /* In jiffies */ | |
339 | ||
340 | u8 in[8]; /* Register value */ | |
341 | u8 in_max[8]; /* Register value */ | |
342 | u8 in_min[8]; /* Register value */ | |
343 | s8 temp[3]; /* Register value */ | |
344 | s8 temp_min[3]; /* Register value */ | |
345 | s8 temp_max[3]; /* Register value */ | |
346 | s8 temp_offset[3]; /* Register value */ | |
347 | u16 fan[4]; /* Register value */ | |
348 | u16 fan_min[4]; /* Register value */ | |
349 | u8 pwm[3]; /* Register value */ | |
350 | u8 spinup_ctl; /* Register encoding, combined */ | |
351 | u8 tach_mode; /* Register encoding, combined */ | |
352 | u8 temp_ext[3]; /* Decoded values */ | |
353 | u8 in_ext[8]; /* Decoded values */ | |
354 | u8 adc_scale; /* ADC Extended bits scaling factor */ | |
355 | u8 fan_ppr; /* Register value */ | |
356 | u8 smooth[3]; /* Register encoding */ | |
357 | u8 vid; /* Register value */ | |
358 | u8 vrm; /* VRM version */ | |
359 | u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */ | |
360 | u8 oppoint[3]; /* Register value */ | |
361 | u16 tmin_ctl; /* Register value */ | |
362 | unsigned long therm_total; /* Cummulative therm count */ | |
363 | u8 therm_limit; /* Register value */ | |
364 | u32 alarms; /* Register encoding, combined */ | |
365 | struct lm85_autofan autofan[3]; | |
366 | struct lm85_zone zone[3]; | |
367 | }; | |
368 | ||
369 | static int lm85_attach_adapter(struct i2c_adapter *adapter); | |
370 | static int lm85_detect(struct i2c_adapter *adapter, int address, | |
371 | int kind); | |
372 | static int lm85_detach_client(struct i2c_client *client); | |
373 | ||
f6c27fc1 DJ |
374 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
375 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value); | |
1da177e4 LT |
376 | static struct lm85_data *lm85_update_device(struct device *dev); |
377 | static void lm85_init_client(struct i2c_client *client); | |
378 | ||
379 | ||
380 | static struct i2c_driver lm85_driver = { | |
cdaf7934 | 381 | .driver = { |
cdaf7934 LR |
382 | .name = "lm85", |
383 | }, | |
1da177e4 | 384 | .id = I2C_DRIVERID_LM85, |
1da177e4 LT |
385 | .attach_adapter = lm85_attach_adapter, |
386 | .detach_client = lm85_detach_client, | |
387 | }; | |
388 | ||
389 | ||
390 | /* 4 Fans */ | |
b353a487 JD |
391 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
392 | char *buf) | |
1da177e4 | 393 | { |
b353a487 | 394 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
395 | struct lm85_data *data = lm85_update_device(dev); |
396 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) ); | |
397 | } | |
b353a487 JD |
398 | |
399 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, | |
400 | char *buf) | |
1da177e4 | 401 | { |
b353a487 | 402 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
403 | struct lm85_data *data = lm85_update_device(dev); |
404 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) ); | |
405 | } | |
b353a487 JD |
406 | |
407 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
408 | const char *buf, size_t count) | |
1da177e4 | 409 | { |
b353a487 | 410 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
411 | struct i2c_client *client = to_i2c_client(dev); |
412 | struct lm85_data *data = i2c_get_clientdata(client); | |
413 | long val = simple_strtol(buf, NULL, 10); | |
414 | ||
9a61bf63 | 415 | mutex_lock(&data->update_lock); |
1da177e4 LT |
416 | data->fan_min[nr] = FAN_TO_REG(val); |
417 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 418 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
419 | return count; |
420 | } | |
421 | ||
422 | #define show_fan_offset(offset) \ | |
b353a487 JD |
423 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
424 | show_fan, NULL, offset - 1); \ | |
425 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
426 | show_fan_min, set_fan_min, offset - 1) | |
1da177e4 LT |
427 | |
428 | show_fan_offset(1); | |
429 | show_fan_offset(2); | |
430 | show_fan_offset(3); | |
431 | show_fan_offset(4); | |
432 | ||
433 | /* vid, vrm, alarms */ | |
434 | ||
8627f9ba | 435 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
436 | { |
437 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
438 | int vid; |
439 | ||
440 | if (data->type == adt7463 && (data->vid & 0x80)) { | |
441 | /* 6-pin VID (VRM 10) */ | |
442 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
443 | } else { | |
444 | /* 5-pin VID (VRM 9) */ | |
445 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
446 | } | |
447 | ||
448 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
449 | } |
450 | ||
451 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
452 | ||
8627f9ba | 453 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
454 | { |
455 | struct lm85_data *data = lm85_update_device(dev); | |
456 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
457 | } | |
458 | ||
8627f9ba | 459 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
460 | { |
461 | struct i2c_client *client = to_i2c_client(dev); | |
462 | struct lm85_data *data = i2c_get_clientdata(client); | |
463 | u32 val; | |
464 | ||
465 | val = simple_strtoul(buf, NULL, 10); | |
466 | data->vrm = val; | |
467 | return count; | |
468 | } | |
469 | ||
470 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
471 | ||
8627f9ba | 472 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
473 | { |
474 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 475 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
476 | } |
477 | ||
478 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
479 | ||
480 | /* pwm */ | |
481 | ||
b353a487 JD |
482 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
483 | char *buf) | |
1da177e4 | 484 | { |
b353a487 | 485 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
486 | struct lm85_data *data = lm85_update_device(dev); |
487 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) ); | |
488 | } | |
b353a487 JD |
489 | |
490 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
491 | const char *buf, size_t count) | |
1da177e4 | 492 | { |
b353a487 | 493 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
494 | struct i2c_client *client = to_i2c_client(dev); |
495 | struct lm85_data *data = i2c_get_clientdata(client); | |
496 | long val = simple_strtol(buf, NULL, 10); | |
497 | ||
9a61bf63 | 498 | mutex_lock(&data->update_lock); |
1da177e4 LT |
499 | data->pwm[nr] = PWM_TO_REG(val); |
500 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 501 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
502 | return count; |
503 | } | |
b353a487 JD |
504 | |
505 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
506 | *attr, char *buf) | |
1da177e4 | 507 | { |
b353a487 | 508 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
509 | struct lm85_data *data = lm85_update_device(dev); |
510 | int pwm_zone; | |
511 | ||
512 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
513 | return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) ); | |
514 | } | |
515 | ||
516 | #define show_pwm_reg(offset) \ | |
b353a487 JD |
517 | static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ |
518 | show_pwm, set_pwm, offset - 1); \ | |
519 | static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, \ | |
520 | show_pwm_enable, NULL, offset - 1) | |
1da177e4 LT |
521 | |
522 | show_pwm_reg(1); | |
523 | show_pwm_reg(2); | |
524 | show_pwm_reg(3); | |
525 | ||
526 | /* Voltages */ | |
527 | ||
b353a487 JD |
528 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
529 | char *buf) | |
1da177e4 | 530 | { |
b353a487 | 531 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
532 | struct lm85_data *data = lm85_update_device(dev); |
533 | return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr, | |
534 | data->in[nr], | |
535 | data->in_ext[nr], | |
536 | data->adc_scale) ); | |
537 | } | |
b353a487 JD |
538 | |
539 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, | |
540 | char *buf) | |
1da177e4 | 541 | { |
b353a487 | 542 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
543 | struct lm85_data *data = lm85_update_device(dev); |
544 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) ); | |
545 | } | |
b353a487 JD |
546 | |
547 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
548 | const char *buf, size_t count) | |
1da177e4 | 549 | { |
b353a487 | 550 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
551 | struct i2c_client *client = to_i2c_client(dev); |
552 | struct lm85_data *data = i2c_get_clientdata(client); | |
553 | long val = simple_strtol(buf, NULL, 10); | |
554 | ||
9a61bf63 | 555 | mutex_lock(&data->update_lock); |
1da177e4 LT |
556 | data->in_min[nr] = INS_TO_REG(nr, val); |
557 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 558 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
559 | return count; |
560 | } | |
b353a487 JD |
561 | |
562 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
563 | char *buf) | |
1da177e4 | 564 | { |
b353a487 | 565 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
566 | struct lm85_data *data = lm85_update_device(dev); |
567 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) ); | |
568 | } | |
b353a487 JD |
569 | |
570 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
571 | const char *buf, size_t count) | |
1da177e4 | 572 | { |
b353a487 | 573 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
574 | struct i2c_client *client = to_i2c_client(dev); |
575 | struct lm85_data *data = i2c_get_clientdata(client); | |
576 | long val = simple_strtol(buf, NULL, 10); | |
577 | ||
9a61bf63 | 578 | mutex_lock(&data->update_lock); |
1da177e4 LT |
579 | data->in_max[nr] = INS_TO_REG(nr, val); |
580 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 581 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
582 | return count; |
583 | } | |
b353a487 | 584 | |
1da177e4 | 585 | #define show_in_reg(offset) \ |
b353a487 JD |
586 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
587 | show_in, NULL, offset); \ | |
588 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
589 | show_in_min, set_in_min, offset); \ | |
590 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
591 | show_in_max, set_in_max, offset) | |
1da177e4 LT |
592 | |
593 | show_in_reg(0); | |
594 | show_in_reg(1); | |
595 | show_in_reg(2); | |
596 | show_in_reg(3); | |
597 | show_in_reg(4); | |
6b9aad2d JD |
598 | show_in_reg(5); |
599 | show_in_reg(6); | |
600 | show_in_reg(7); | |
1da177e4 LT |
601 | |
602 | /* Temps */ | |
603 | ||
b353a487 JD |
604 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
605 | char *buf) | |
1da177e4 | 606 | { |
b353a487 | 607 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
608 | struct lm85_data *data = lm85_update_device(dev); |
609 | return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr], | |
610 | data->temp_ext[nr], | |
611 | data->adc_scale) ); | |
612 | } | |
b353a487 JD |
613 | |
614 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, | |
615 | char *buf) | |
1da177e4 | 616 | { |
b353a487 | 617 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
618 | struct lm85_data *data = lm85_update_device(dev); |
619 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) ); | |
620 | } | |
b353a487 JD |
621 | |
622 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, | |
623 | const char *buf, size_t count) | |
1da177e4 | 624 | { |
b353a487 | 625 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
626 | struct i2c_client *client = to_i2c_client(dev); |
627 | struct lm85_data *data = i2c_get_clientdata(client); | |
628 | long val = simple_strtol(buf, NULL, 10); | |
629 | ||
9a61bf63 | 630 | mutex_lock(&data->update_lock); |
1da177e4 LT |
631 | data->temp_min[nr] = TEMP_TO_REG(val); |
632 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 633 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
634 | return count; |
635 | } | |
b353a487 JD |
636 | |
637 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
638 | char *buf) | |
1da177e4 | 639 | { |
b353a487 | 640 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
641 | struct lm85_data *data = lm85_update_device(dev); |
642 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) ); | |
643 | } | |
b353a487 JD |
644 | |
645 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
646 | const char *buf, size_t count) | |
1da177e4 | 647 | { |
b353a487 | 648 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
649 | struct i2c_client *client = to_i2c_client(dev); |
650 | struct lm85_data *data = i2c_get_clientdata(client); | |
651 | long val = simple_strtol(buf, NULL, 10); | |
652 | ||
9a61bf63 | 653 | mutex_lock(&data->update_lock); |
1da177e4 LT |
654 | data->temp_max[nr] = TEMP_TO_REG(val); |
655 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 656 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
657 | return count; |
658 | } | |
b353a487 | 659 | |
1da177e4 | 660 | #define show_temp_reg(offset) \ |
b353a487 JD |
661 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
662 | show_temp, NULL, offset - 1); \ | |
663 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
664 | show_temp_min, set_temp_min, offset - 1); \ | |
665 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
666 | show_temp_max, set_temp_max, offset - 1); | |
1da177e4 LT |
667 | |
668 | show_temp_reg(1); | |
669 | show_temp_reg(2); | |
670 | show_temp_reg(3); | |
671 | ||
672 | ||
673 | /* Automatic PWM control */ | |
674 | ||
b353a487 JD |
675 | static ssize_t show_pwm_auto_channels(struct device *dev, |
676 | struct device_attribute *attr, char *buf) | |
1da177e4 | 677 | { |
b353a487 | 678 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
679 | struct lm85_data *data = lm85_update_device(dev); |
680 | return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config)); | |
681 | } | |
b353a487 JD |
682 | |
683 | static ssize_t set_pwm_auto_channels(struct device *dev, | |
684 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 685 | { |
b353a487 | 686 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
687 | struct i2c_client *client = to_i2c_client(dev); |
688 | struct lm85_data *data = i2c_get_clientdata(client); | |
689 | long val = simple_strtol(buf, NULL, 10); | |
690 | ||
9a61bf63 | 691 | mutex_lock(&data->update_lock); |
1da177e4 LT |
692 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
693 | | ZONE_TO_REG(val) ; | |
694 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
695 | data->autofan[nr].config); | |
9a61bf63 | 696 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
697 | return count; |
698 | } | |
b353a487 JD |
699 | |
700 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, | |
701 | struct device_attribute *attr, char *buf) | |
1da177e4 | 702 | { |
b353a487 | 703 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
704 | struct lm85_data *data = lm85_update_device(dev); |
705 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); | |
706 | } | |
b353a487 JD |
707 | |
708 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, | |
709 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 710 | { |
b353a487 | 711 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
712 | struct i2c_client *client = to_i2c_client(dev); |
713 | struct lm85_data *data = i2c_get_clientdata(client); | |
714 | long val = simple_strtol(buf, NULL, 10); | |
715 | ||
9a61bf63 | 716 | mutex_lock(&data->update_lock); |
1da177e4 LT |
717 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
718 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
719 | data->autofan[nr].min_pwm); | |
9a61bf63 | 720 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
721 | return count; |
722 | } | |
b353a487 JD |
723 | |
724 | static ssize_t show_pwm_auto_pwm_minctl(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", data->autofan[nr].min_off); | |
730 | } | |
b353a487 JD |
731 | |
732 | static ssize_t set_pwm_auto_pwm_minctl(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].min_off = val; |
742 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0] | |
743 | | data->syncpwm3 | |
744 | | (data->autofan[0].min_off ? 0x20 : 0) | |
745 | | (data->autofan[1].min_off ? 0x40 : 0) | |
746 | | (data->autofan[2].min_off ? 0x80 : 0) | |
747 | ); | |
9a61bf63 | 748 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
749 | return count; |
750 | } | |
b353a487 JD |
751 | |
752 | static ssize_t show_pwm_auto_pwm_freq(struct device *dev, | |
753 | struct device_attribute *attr, char *buf) | |
1da177e4 | 754 | { |
b353a487 | 755 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
756 | struct lm85_data *data = lm85_update_device(dev); |
757 | return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq)); | |
758 | } | |
b353a487 JD |
759 | |
760 | static ssize_t set_pwm_auto_pwm_freq(struct device *dev, | |
761 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 762 | { |
b353a487 | 763 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
764 | struct i2c_client *client = to_i2c_client(dev); |
765 | struct lm85_data *data = i2c_get_clientdata(client); | |
766 | long val = simple_strtol(buf, NULL, 10); | |
767 | ||
9a61bf63 | 768 | mutex_lock(&data->update_lock); |
1da177e4 LT |
769 | data->autofan[nr].freq = FREQ_TO_REG(val); |
770 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
771 | (data->zone[nr].range << 4) | |
772 | | data->autofan[nr].freq | |
773 | ); | |
9a61bf63 | 774 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
775 | return count; |
776 | } | |
b353a487 | 777 | |
1da177e4 | 778 | #define pwm_auto(offset) \ |
b353a487 JD |
779 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \ |
780 | S_IRUGO | S_IWUSR, show_pwm_auto_channels, \ | |
781 | set_pwm_auto_channels, offset - 1); \ | |
782 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \ | |
783 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min, \ | |
784 | set_pwm_auto_pwm_min, offset - 1); \ | |
785 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \ | |
786 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \ | |
787 | set_pwm_auto_pwm_minctl, offset - 1); \ | |
788 | static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq, \ | |
789 | S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq, \ | |
790 | set_pwm_auto_pwm_freq, offset - 1); | |
791 | ||
1da177e4 LT |
792 | pwm_auto(1); |
793 | pwm_auto(2); | |
794 | pwm_auto(3); | |
795 | ||
796 | /* Temperature settings for automatic PWM control */ | |
797 | ||
b353a487 JD |
798 | static ssize_t show_temp_auto_temp_off(struct device *dev, |
799 | struct device_attribute *attr, char *buf) | |
1da177e4 | 800 | { |
b353a487 | 801 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
802 | struct lm85_data *data = lm85_update_device(dev); |
803 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) - | |
804 | HYST_FROM_REG(data->zone[nr].hyst)); | |
805 | } | |
b353a487 JD |
806 | |
807 | static ssize_t set_temp_auto_temp_off(struct device *dev, | |
808 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 809 | { |
b353a487 | 810 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
811 | struct i2c_client *client = to_i2c_client(dev); |
812 | struct lm85_data *data = i2c_get_clientdata(client); | |
813 | int min; | |
814 | long val = simple_strtol(buf, NULL, 10); | |
815 | ||
9a61bf63 | 816 | mutex_lock(&data->update_lock); |
1da177e4 LT |
817 | min = TEMP_FROM_REG(data->zone[nr].limit); |
818 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
819 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
820 | if ( nr == 0 || nr == 1 ) { | |
821 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
822 | (data->zone[0].hyst << 4) | |
823 | | data->zone[1].hyst | |
824 | ); | |
825 | } else { | |
826 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
827 | (data->zone[2].hyst << 4) | |
828 | ); | |
829 | } | |
9a61bf63 | 830 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
831 | return count; |
832 | } | |
b353a487 JD |
833 | |
834 | static ssize_t show_temp_auto_temp_min(struct device *dev, | |
835 | struct device_attribute *attr, char *buf) | |
1da177e4 | 836 | { |
b353a487 | 837 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
838 | struct lm85_data *data = lm85_update_device(dev); |
839 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) ); | |
840 | } | |
b353a487 JD |
841 | |
842 | static ssize_t set_temp_auto_temp_min(struct device *dev, | |
843 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 844 | { |
b353a487 | 845 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
846 | struct i2c_client *client = to_i2c_client(dev); |
847 | struct lm85_data *data = i2c_get_clientdata(client); | |
848 | long val = simple_strtol(buf, NULL, 10); | |
849 | ||
9a61bf63 | 850 | mutex_lock(&data->update_lock); |
1da177e4 LT |
851 | data->zone[nr].limit = TEMP_TO_REG(val); |
852 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
853 | data->zone[nr].limit); | |
854 | ||
855 | /* Update temp_auto_max and temp_auto_range */ | |
856 | data->zone[nr].range = RANGE_TO_REG( | |
857 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
858 | TEMP_FROM_REG(data->zone[nr].limit)); | |
859 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
860 | ((data->zone[nr].range & 0x0f) << 4) | |
861 | | (data->autofan[nr].freq & 0x07)); | |
862 | ||
863 | /* Update temp_auto_hyst and temp_auto_off */ | |
864 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
865 | data->zone[nr].limit) - TEMP_FROM_REG( | |
866 | data->zone[nr].off_desired)); | |
867 | if ( nr == 0 || nr == 1 ) { | |
868 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
869 | (data->zone[0].hyst << 4) | |
870 | | data->zone[1].hyst | |
871 | ); | |
872 | } else { | |
873 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
874 | (data->zone[2].hyst << 4) | |
875 | ); | |
876 | } | |
9a61bf63 | 877 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
878 | return count; |
879 | } | |
b353a487 JD |
880 | |
881 | static ssize_t show_temp_auto_temp_max(struct device *dev, | |
882 | struct device_attribute *attr, char *buf) | |
1da177e4 | 883 | { |
b353a487 | 884 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
885 | struct lm85_data *data = lm85_update_device(dev); |
886 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) + | |
887 | RANGE_FROM_REG(data->zone[nr].range)); | |
888 | } | |
b353a487 JD |
889 | |
890 | static ssize_t set_temp_auto_temp_max(struct device *dev, | |
891 | struct device_attribute *attr, const char *buf, size_t count) | |
1da177e4 | 892 | { |
b353a487 | 893 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
894 | struct i2c_client *client = to_i2c_client(dev); |
895 | struct lm85_data *data = i2c_get_clientdata(client); | |
896 | int min; | |
897 | long val = simple_strtol(buf, NULL, 10); | |
898 | ||
9a61bf63 | 899 | mutex_lock(&data->update_lock); |
1da177e4 LT |
900 | min = TEMP_FROM_REG(data->zone[nr].limit); |
901 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
902 | data->zone[nr].range = RANGE_TO_REG( | |
903 | val - min); | |
904 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
905 | ((data->zone[nr].range & 0x0f) << 4) | |
906 | | (data->autofan[nr].freq & 0x07)); | |
9a61bf63 | 907 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
908 | return count; |
909 | } | |
b353a487 JD |
910 | |
911 | static ssize_t show_temp_auto_temp_crit(struct device *dev, | |
912 | struct device_attribute *attr, char *buf) | |
1da177e4 | 913 | { |
b353a487 | 914 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
915 | struct lm85_data *data = lm85_update_device(dev); |
916 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical)); | |
917 | } | |
b353a487 JD |
918 | |
919 | static ssize_t set_temp_auto_temp_crit(struct device *dev, | |
920 | struct device_attribute *attr,const char *buf, size_t count) | |
1da177e4 | 921 | { |
b353a487 | 922 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
923 | struct i2c_client *client = to_i2c_client(dev); |
924 | struct lm85_data *data = i2c_get_clientdata(client); | |
925 | long val = simple_strtol(buf, NULL, 10); | |
926 | ||
9a61bf63 | 927 | mutex_lock(&data->update_lock); |
1da177e4 LT |
928 | data->zone[nr].critical = TEMP_TO_REG(val); |
929 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
930 | data->zone[nr].critical); | |
9a61bf63 | 931 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
932 | return count; |
933 | } | |
b353a487 | 934 | |
1da177e4 | 935 | #define temp_auto(offset) \ |
b353a487 JD |
936 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off, \ |
937 | S_IRUGO | S_IWUSR, show_temp_auto_temp_off, \ | |
938 | set_temp_auto_temp_off, offset - 1); \ | |
939 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min, \ | |
940 | S_IRUGO | S_IWUSR, show_temp_auto_temp_min, \ | |
941 | set_temp_auto_temp_min, offset - 1); \ | |
942 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max, \ | |
943 | S_IRUGO | S_IWUSR, show_temp_auto_temp_max, \ | |
944 | set_temp_auto_temp_max, offset - 1); \ | |
945 | static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit, \ | |
946 | S_IRUGO | S_IWUSR, show_temp_auto_temp_crit, \ | |
947 | set_temp_auto_temp_crit, offset - 1); | |
948 | ||
1da177e4 LT |
949 | temp_auto(1); |
950 | temp_auto(2); | |
951 | temp_auto(3); | |
952 | ||
d8d20615 | 953 | static int lm85_attach_adapter(struct i2c_adapter *adapter) |
1da177e4 LT |
954 | { |
955 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
956 | return 0; | |
2ed2dc3c | 957 | return i2c_probe(adapter, &addr_data, lm85_detect); |
1da177e4 LT |
958 | } |
959 | ||
0501a381 | 960 | static struct attribute *lm85_attributes[] = { |
b353a487 JD |
961 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
962 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
963 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
964 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
965 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
966 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
967 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
968 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
969 | ||
970 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
971 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
972 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
973 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
974 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
975 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
976 | ||
977 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
978 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
979 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
980 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
981 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
982 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
983 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
984 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
985 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
986 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
987 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
988 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
989 | ||
990 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
991 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
992 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
993 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
994 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
995 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
996 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
997 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
998 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
999 | ||
1000 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, | |
1001 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, | |
1002 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, | |
1003 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, | |
1004 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, | |
1005 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, | |
1006 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, | |
1007 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, | |
1008 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, | |
1009 | &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr, | |
1010 | &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr, | |
1011 | &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr, | |
1012 | ||
1013 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, | |
1014 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, | |
1015 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, | |
1016 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, | |
1017 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, | |
1018 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, | |
1019 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, | |
1020 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, | |
1021 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, | |
1022 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, | |
1023 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, | |
1024 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, | |
1025 | ||
0501a381 MH |
1026 | &dev_attr_vrm.attr, |
1027 | &dev_attr_cpu0_vid.attr, | |
1028 | &dev_attr_alarms.attr, | |
0501a381 MH |
1029 | NULL |
1030 | }; | |
1031 | ||
1032 | static const struct attribute_group lm85_group = { | |
1033 | .attrs = lm85_attributes, | |
1034 | }; | |
1035 | ||
6b9aad2d | 1036 | static struct attribute *lm85_attributes_in4[] = { |
b353a487 JD |
1037 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1038 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1039 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
0501a381 MH |
1040 | NULL |
1041 | }; | |
1042 | ||
6b9aad2d JD |
1043 | static const struct attribute_group lm85_group_in4 = { |
1044 | .attrs = lm85_attributes_in4, | |
1045 | }; | |
1046 | ||
1047 | static struct attribute *lm85_attributes_in567[] = { | |
1048 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1049 | &sensor_dev_attr_in6_input.dev_attr.attr, | |
1050 | &sensor_dev_attr_in7_input.dev_attr.attr, | |
1051 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1052 | &sensor_dev_attr_in6_min.dev_attr.attr, | |
1053 | &sensor_dev_attr_in7_min.dev_attr.attr, | |
1054 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1055 | &sensor_dev_attr_in6_max.dev_attr.attr, | |
1056 | &sensor_dev_attr_in7_max.dev_attr.attr, | |
1057 | NULL | |
1058 | }; | |
1059 | ||
1060 | static const struct attribute_group lm85_group_in567 = { | |
1061 | .attrs = lm85_attributes_in567, | |
0501a381 MH |
1062 | }; |
1063 | ||
d8d20615 | 1064 | static int lm85_detect(struct i2c_adapter *adapter, int address, |
1da177e4 LT |
1065 | int kind) |
1066 | { | |
1067 | int company, verstep ; | |
1068 | struct i2c_client *new_client = NULL; | |
1069 | struct lm85_data *data; | |
1070 | int err = 0; | |
1071 | const char *type_name = ""; | |
1072 | ||
1da177e4 LT |
1073 | if (!i2c_check_functionality(adapter, |
1074 | I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1075 | /* We need to be able to do byte I/O */ | |
1076 | goto ERROR0 ; | |
1077 | }; | |
1078 | ||
1079 | /* OK. For now, we presume we have a valid client. We now create the | |
1080 | client structure, even though we cannot fill it completely yet. | |
1081 | But it allows us to access lm85_{read,write}_value. */ | |
1082 | ||
ba9c2e8d | 1083 | if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) { |
1da177e4 LT |
1084 | err = -ENOMEM; |
1085 | goto ERROR0; | |
1086 | } | |
1da177e4 LT |
1087 | |
1088 | new_client = &data->client; | |
1089 | i2c_set_clientdata(new_client, data); | |
1090 | new_client->addr = address; | |
1091 | new_client->adapter = adapter; | |
1092 | new_client->driver = &lm85_driver; | |
1093 | new_client->flags = 0; | |
1094 | ||
1095 | /* Now, we do the remaining detection. */ | |
1096 | ||
1097 | company = lm85_read_value(new_client, LM85_REG_COMPANY); | |
1098 | verstep = lm85_read_value(new_client, LM85_REG_VERSTEP); | |
1099 | ||
1100 | dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" | |
1101 | " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1102 | i2c_adapter_id(new_client->adapter), new_client->addr, | |
1103 | company, verstep); | |
1104 | ||
1105 | /* If auto-detecting, Determine the chip type. */ | |
1106 | if (kind <= 0) { | |
1107 | dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n", | |
1108 | i2c_adapter_id(adapter), address ); | |
1109 | if( company == LM85_COMPANY_NATIONAL | |
1110 | && verstep == LM85_VERSTEP_LM85C ) { | |
1111 | kind = lm85c ; | |
1112 | } else if( company == LM85_COMPANY_NATIONAL | |
1113 | && verstep == LM85_VERSTEP_LM85B ) { | |
1114 | kind = lm85b ; | |
1115 | } else if( company == LM85_COMPANY_NATIONAL | |
1116 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1117 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1118 | " Defaulting to LM85.\n", verstep); | |
1119 | kind = any_chip ; | |
1120 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1121 | && verstep == LM85_VERSTEP_ADM1027 ) { | |
1122 | kind = adm1027 ; | |
1123 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1124 | && (verstep == LM85_VERSTEP_ADT7463 | |
1125 | || verstep == LM85_VERSTEP_ADT7463C) ) { | |
1126 | kind = adt7463 ; | |
1127 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1128 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1129 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1130 | " Defaulting to Generic LM85.\n", verstep ); | |
1131 | kind = any_chip ; | |
1132 | } else if( company == LM85_COMPANY_SMSC | |
1133 | && (verstep == LM85_VERSTEP_EMC6D100_A0 | |
1134 | || verstep == LM85_VERSTEP_EMC6D100_A1) ) { | |
1135 | /* Unfortunately, we can't tell a '100 from a '101 | |
1136 | * from the registers. Since a '101 is a '100 | |
1137 | * in a package with fewer pins and therefore no | |
1138 | * 3.3V, 1.5V or 1.8V inputs, perhaps if those | |
1139 | * inputs read 0, then it's a '101. | |
1140 | */ | |
1141 | kind = emc6d100 ; | |
1142 | } else if( company == LM85_COMPANY_SMSC | |
1143 | && verstep == LM85_VERSTEP_EMC6D102) { | |
1144 | kind = emc6d102 ; | |
1145 | } else if( company == LM85_COMPANY_SMSC | |
1146 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1147 | dev_err(&adapter->dev, "lm85: Detected SMSC chip\n"); | |
1148 | dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x" | |
1149 | " Defaulting to Generic LM85.\n", verstep ); | |
1150 | kind = any_chip ; | |
1151 | } else if( kind == any_chip | |
1152 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1153 | dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n"); | |
1154 | /* Leave kind as "any_chip" */ | |
1155 | } else { | |
1156 | dev_dbg(&adapter->dev, "Autodetection failed\n"); | |
1157 | /* Not an LM85 ... */ | |
1158 | if( kind == any_chip ) { /* User used force=x,y */ | |
1159 | dev_err(&adapter->dev, "Generic LM85 Version 6 not" | |
1160 | " found at %d,0x%02x. Try force_lm85c.\n", | |
1161 | i2c_adapter_id(adapter), address ); | |
1162 | } | |
1163 | err = 0 ; | |
1164 | goto ERROR1; | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | /* Fill in the chip specific driver values */ | |
1169 | if ( kind == any_chip ) { | |
1170 | type_name = "lm85"; | |
1171 | } else if ( kind == lm85b ) { | |
1172 | type_name = "lm85b"; | |
1173 | } else if ( kind == lm85c ) { | |
1174 | type_name = "lm85c"; | |
1175 | } else if ( kind == adm1027 ) { | |
1176 | type_name = "adm1027"; | |
1177 | } else if ( kind == adt7463 ) { | |
1178 | type_name = "adt7463"; | |
1179 | } else if ( kind == emc6d100){ | |
1180 | type_name = "emc6d100"; | |
1181 | } else if ( kind == emc6d102 ) { | |
1182 | type_name = "emc6d102"; | |
1183 | } | |
1184 | strlcpy(new_client->name, type_name, I2C_NAME_SIZE); | |
1185 | ||
1186 | /* Fill in the remaining client fields */ | |
1187 | data->type = kind; | |
1188 | data->valid = 0; | |
9a61bf63 | 1189 | mutex_init(&data->update_lock); |
1da177e4 LT |
1190 | |
1191 | /* Tell the I2C layer a new client has arrived */ | |
1192 | if ((err = i2c_attach_client(new_client))) | |
1193 | goto ERROR1; | |
1194 | ||
1195 | /* Set the VRM version */ | |
303760b4 | 1196 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1197 | |
1198 | /* Initialize the LM85 chip */ | |
1199 | lm85_init_client(new_client); | |
1200 | ||
1201 | /* Register sysfs hooks */ | |
0501a381 | 1202 | if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group))) |
943b0830 | 1203 | goto ERROR2; |
1da177e4 | 1204 | |
9c516ef4 JD |
1205 | /* The ADT7463 has an optional VRM 10 mode where pin 21 is used |
1206 | as a sixth digital VID input rather than an analog input. */ | |
1207 | data->vid = lm85_read_value(new_client, LM85_REG_VID); | |
0501a381 | 1208 | if (!(kind == adt7463 && (data->vid & 0x80))) |
6b9aad2d JD |
1209 | if ((err = sysfs_create_group(&new_client->dev.kobj, |
1210 | &lm85_group_in4))) | |
1211 | goto ERROR3; | |
1212 | ||
1213 | /* The EMC6D100 has 3 additional voltage inputs */ | |
1214 | if (kind == emc6d100) | |
1215 | if ((err = sysfs_create_group(&new_client->dev.kobj, | |
1216 | &lm85_group_in567))) | |
0501a381 MH |
1217 | goto ERROR3; |
1218 | ||
1beeffe4 TJ |
1219 | data->hwmon_dev = hwmon_device_register(&new_client->dev); |
1220 | if (IS_ERR(data->hwmon_dev)) { | |
1221 | err = PTR_ERR(data->hwmon_dev); | |
0501a381 | 1222 | goto ERROR3; |
9c516ef4 JD |
1223 | } |
1224 | ||
1da177e4 LT |
1225 | return 0; |
1226 | ||
1227 | /* Error out and cleanup code */ | |
0501a381 MH |
1228 | ERROR3: |
1229 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group); | |
6b9aad2d JD |
1230 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in4); |
1231 | if (kind == emc6d100) | |
1232 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in567); | |
943b0830 MH |
1233 | ERROR2: |
1234 | i2c_detach_client(new_client); | |
1da177e4 LT |
1235 | ERROR1: |
1236 | kfree(data); | |
1237 | ERROR0: | |
1238 | return err; | |
1239 | } | |
1240 | ||
d8d20615 | 1241 | static int lm85_detach_client(struct i2c_client *client) |
1da177e4 | 1242 | { |
943b0830 | 1243 | struct lm85_data *data = i2c_get_clientdata(client); |
1beeffe4 | 1244 | hwmon_device_unregister(data->hwmon_dev); |
0501a381 | 1245 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
6b9aad2d JD |
1246 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in4); |
1247 | if (data->type == emc6d100) | |
1248 | sysfs_remove_group(&client->dev.kobj, &lm85_group_in567); | |
1da177e4 | 1249 | i2c_detach_client(client); |
943b0830 | 1250 | kfree(data); |
1da177e4 LT |
1251 | return 0; |
1252 | } | |
1253 | ||
1254 | ||
d8d20615 | 1255 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1256 | { |
1257 | int res; | |
1258 | ||
1259 | /* What size location is it? */ | |
1260 | switch( reg ) { | |
1261 | case LM85_REG_FAN(0) : /* Read WORD data */ | |
1262 | case LM85_REG_FAN(1) : | |
1263 | case LM85_REG_FAN(2) : | |
1264 | case LM85_REG_FAN(3) : | |
1265 | case LM85_REG_FAN_MIN(0) : | |
1266 | case LM85_REG_FAN_MIN(1) : | |
1267 | case LM85_REG_FAN_MIN(2) : | |
1268 | case LM85_REG_FAN_MIN(3) : | |
1269 | case LM85_REG_ALARM1 : /* Read both bytes at once */ | |
1270 | res = i2c_smbus_read_byte_data(client, reg) & 0xff ; | |
1271 | res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ; | |
1272 | break ; | |
1273 | case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */ | |
1274 | res = i2c_smbus_read_byte_data(client, reg) << 8 ; | |
1275 | res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ; | |
1276 | break ; | |
1277 | default: /* Read BYTE data */ | |
1278 | res = i2c_smbus_read_byte_data(client, reg); | |
1279 | break ; | |
1280 | } | |
1281 | ||
1282 | return res ; | |
1283 | } | |
1284 | ||
d8d20615 | 1285 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 LT |
1286 | { |
1287 | int res ; | |
1288 | ||
1289 | switch( reg ) { | |
1290 | case LM85_REG_FAN(0) : /* Write WORD data */ | |
1291 | case LM85_REG_FAN(1) : | |
1292 | case LM85_REG_FAN(2) : | |
1293 | case LM85_REG_FAN(3) : | |
1294 | case LM85_REG_FAN_MIN(0) : | |
1295 | case LM85_REG_FAN_MIN(1) : | |
1296 | case LM85_REG_FAN_MIN(2) : | |
1297 | case LM85_REG_FAN_MIN(3) : | |
1298 | /* NOTE: ALARM is read only, so not included here */ | |
1299 | res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ; | |
1300 | res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ; | |
1301 | break ; | |
1302 | case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */ | |
1303 | res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff); | |
1304 | res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ; | |
1305 | break ; | |
1306 | default: /* Write BYTE data */ | |
1307 | res = i2c_smbus_write_byte_data(client, reg, value); | |
1308 | break ; | |
1309 | } | |
1310 | ||
1311 | return res ; | |
1312 | } | |
1313 | ||
d8d20615 | 1314 | static void lm85_init_client(struct i2c_client *client) |
1da177e4 LT |
1315 | { |
1316 | int value; | |
1317 | struct lm85_data *data = i2c_get_clientdata(client); | |
1318 | ||
1319 | dev_dbg(&client->dev, "Initializing device\n"); | |
1320 | ||
1321 | /* Warn if part was not "READY" */ | |
1322 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1323 | dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value); | |
1324 | if( value & 0x02 ) { | |
1325 | dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n", | |
1326 | i2c_adapter_id(client->adapter), client->addr ); | |
1327 | }; | |
1328 | if( ! (value & 0x04) ) { | |
1329 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", | |
1330 | i2c_adapter_id(client->adapter), client->addr ); | |
1331 | }; | |
1332 | if( value & 0x10 | |
1333 | && ( data->type == adm1027 | |
1334 | || data->type == adt7463 ) ) { | |
1335 | dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. " | |
1336 | "Please report this to the lm85 maintainer.\n", | |
1337 | i2c_adapter_id(client->adapter), client->addr ); | |
1338 | }; | |
1339 | ||
1340 | /* WE INTENTIONALLY make no changes to the limits, | |
1341 | * offsets, pwms, fans and zones. If they were | |
1342 | * configured, we don't want to mess with them. | |
1343 | * If they weren't, the default is 100% PWM, no | |
1344 | * control and will suffice until 'sensors -s' | |
1345 | * can be run by the user. | |
1346 | */ | |
1347 | ||
1348 | /* Start monitoring */ | |
1349 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1350 | /* Try to clear LOCK, Set START, save everything else */ | |
1351 | value = (value & ~ 0x02) | 0x01 ; | |
1352 | dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); | |
1353 | lm85_write_value(client, LM85_REG_CONFIG, value); | |
1354 | } | |
1355 | ||
1356 | static struct lm85_data *lm85_update_device(struct device *dev) | |
1357 | { | |
1358 | struct i2c_client *client = to_i2c_client(dev); | |
1359 | struct lm85_data *data = i2c_get_clientdata(client); | |
1360 | int i; | |
1361 | ||
9a61bf63 | 1362 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1363 | |
1364 | if ( !data->valid || | |
1365 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) { | |
1366 | /* Things that change quickly */ | |
1367 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1368 | ||
1369 | /* Have to read extended bits first to "freeze" the | |
1370 | * more significant bits that are read later. | |
1371 | */ | |
1372 | if ( (data->type == adm1027) || (data->type == adt7463) ) { | |
1373 | int ext1 = lm85_read_value(client, | |
1374 | ADM1027_REG_EXTEND_ADC1); | |
1375 | int ext2 = lm85_read_value(client, | |
1376 | ADM1027_REG_EXTEND_ADC2); | |
1377 | int val = (ext1 << 8) + ext2; | |
1378 | ||
1379 | for(i = 0; i <= 4; i++) | |
1380 | data->in_ext[i] = (val>>(i * 2))&0x03; | |
1381 | ||
1382 | for(i = 0; i <= 2; i++) | |
1383 | data->temp_ext[i] = (val>>((i + 5) * 2))&0x03; | |
1384 | } | |
1385 | ||
1386 | /* adc_scale is 2^(number of LSBs). There are 4 extra bits in | |
1387 | the emc6d102 and 2 in the adt7463 and adm1027. In all | |
1388 | other chips ext is always 0 and the value of scale is | |
1389 | irrelevant. So it is left in 4*/ | |
1390 | data->adc_scale = (data->type == emc6d102 ) ? 16 : 4; | |
1391 | ||
9c516ef4 JD |
1392 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1393 | ||
1394 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1395 | data->in[i] = |
1396 | lm85_read_value(client, LM85_REG_IN(i)); | |
1397 | } | |
1398 | ||
9c516ef4 JD |
1399 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1400 | data->in[4] = lm85_read_value(client, | |
1401 | LM85_REG_IN(4)); | |
1402 | } | |
1403 | ||
1da177e4 LT |
1404 | for (i = 0; i <= 3; ++i) { |
1405 | data->fan[i] = | |
1406 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1407 | } | |
1408 | ||
1409 | for (i = 0; i <= 2; ++i) { | |
1410 | data->temp[i] = | |
1411 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1412 | } | |
1413 | ||
1414 | for (i = 0; i <= 2; ++i) { | |
1415 | data->pwm[i] = | |
1416 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1417 | } | |
1418 | ||
1419 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1420 | ||
1421 | if ( data->type == adt7463 ) { | |
1422 | if( data->therm_total < ULONG_MAX - 256 ) { | |
1423 | data->therm_total += | |
1424 | lm85_read_value(client, ADT7463_REG_THERM ); | |
1425 | } | |
1426 | } else if ( data->type == emc6d100 ) { | |
1427 | /* Three more voltage sensors */ | |
1428 | for (i = 5; i <= 7; ++i) { | |
1429 | data->in[i] = | |
1430 | lm85_read_value(client, EMC6D100_REG_IN(i)); | |
1431 | } | |
1432 | /* More alarm bits */ | |
1433 | data->alarms |= | |
1434 | lm85_read_value(client, EMC6D100_REG_ALARM3) << 16; | |
1435 | } else if (data->type == emc6d102 ) { | |
1436 | /* Have to read LSB bits after the MSB ones because | |
1437 | the reading of the MSB bits has frozen the | |
1438 | LSBs (backward from the ADM1027). | |
1439 | */ | |
1440 | int ext1 = lm85_read_value(client, | |
1441 | EMC6D102_REG_EXTEND_ADC1); | |
1442 | int ext2 = lm85_read_value(client, | |
1443 | EMC6D102_REG_EXTEND_ADC2); | |
1444 | int ext3 = lm85_read_value(client, | |
1445 | EMC6D102_REG_EXTEND_ADC3); | |
1446 | int ext4 = lm85_read_value(client, | |
1447 | EMC6D102_REG_EXTEND_ADC4); | |
1448 | data->in_ext[0] = ext3 & 0x0f; | |
1449 | data->in_ext[1] = ext4 & 0x0f; | |
1450 | data->in_ext[2] = (ext4 >> 4) & 0x0f; | |
1451 | data->in_ext[3] = (ext3 >> 4) & 0x0f; | |
1452 | data->in_ext[4] = (ext2 >> 4) & 0x0f; | |
1453 | ||
1454 | data->temp_ext[0] = ext1 & 0x0f; | |
1455 | data->temp_ext[1] = ext2 & 0x0f; | |
1456 | data->temp_ext[2] = (ext1 >> 4) & 0x0f; | |
1457 | } | |
1458 | ||
1459 | data->last_reading = jiffies ; | |
1460 | }; /* last_reading */ | |
1461 | ||
1462 | if ( !data->valid || | |
1463 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) { | |
1464 | /* Things that don't change often */ | |
1465 | dev_dbg(&client->dev, "Reading config values\n"); | |
1466 | ||
9c516ef4 | 1467 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1468 | data->in_min[i] = |
1469 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1470 | data->in_max[i] = | |
1471 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
1472 | } | |
1473 | ||
9c516ef4 JD |
1474 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1475 | data->in_min[4] = lm85_read_value(client, | |
1476 | LM85_REG_IN_MIN(4)); | |
1477 | data->in_max[4] = lm85_read_value(client, | |
1478 | LM85_REG_IN_MAX(4)); | |
1479 | } | |
1480 | ||
1da177e4 LT |
1481 | if ( data->type == emc6d100 ) { |
1482 | for (i = 5; i <= 7; ++i) { | |
1483 | data->in_min[i] = | |
1484 | lm85_read_value(client, EMC6D100_REG_IN_MIN(i)); | |
1485 | data->in_max[i] = | |
1486 | lm85_read_value(client, EMC6D100_REG_IN_MAX(i)); | |
1487 | } | |
1488 | } | |
1489 | ||
1490 | for (i = 0; i <= 3; ++i) { | |
1491 | data->fan_min[i] = | |
1492 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1493 | } | |
1494 | ||
1495 | for (i = 0; i <= 2; ++i) { | |
1496 | data->temp_min[i] = | |
1497 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1498 | data->temp_max[i] = | |
1499 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1500 | } | |
1501 | ||
1da177e4 LT |
1502 | for (i = 0; i <= 2; ++i) { |
1503 | int val ; | |
1504 | data->autofan[i].config = | |
1505 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1506 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
1507 | data->autofan[i].freq = val & 0x07 ; | |
1508 | data->zone[i].range = (val >> 4) & 0x0f ; | |
1509 | data->autofan[i].min_pwm = | |
1510 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1511 | data->zone[i].limit = | |
1512 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1513 | data->zone[i].critical = | |
1514 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1515 | } | |
1516 | ||
1517 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1518 | data->smooth[0] = i & 0x0f ; | |
1519 | data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */ | |
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 ; | |
1523 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2); | |
1524 | data->smooth[1] = (i>>4) & 0x0f ; | |
1525 | data->smooth[2] = i & 0x0f ; | |
1526 | ||
1527 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
1528 | data->zone[0].hyst = (i>>4) & 0x0f ; | |
1529 | data->zone[1].hyst = i & 0x0f ; | |
1530 | ||
1531 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
1532 | data->zone[2].hyst = (i>>4) & 0x0f ; | |
1533 | ||
1534 | if ( (data->type == lm85b) || (data->type == lm85c) ) { | |
1535 | data->tach_mode = lm85_read_value(client, | |
1536 | LM85_REG_TACH_MODE ); | |
1537 | data->spinup_ctl = lm85_read_value(client, | |
1538 | LM85_REG_SPINUP_CTL ); | |
1539 | } else if ( (data->type == adt7463) || (data->type == adm1027) ) { | |
1540 | if ( data->type == adt7463 ) { | |
1541 | for (i = 0; i <= 2; ++i) { | |
1542 | data->oppoint[i] = lm85_read_value(client, | |
1543 | ADT7463_REG_OPPOINT(i) ); | |
1544 | } | |
1545 | data->tmin_ctl = lm85_read_value(client, | |
1546 | ADT7463_REG_TMIN_CTL1 ); | |
1547 | data->therm_limit = lm85_read_value(client, | |
1548 | ADT7463_REG_THERM_LIMIT ); | |
1549 | } | |
1550 | for (i = 0; i <= 2; ++i) { | |
1551 | data->temp_offset[i] = lm85_read_value(client, | |
1552 | ADM1027_REG_TEMP_OFFSET(i) ); | |
1553 | } | |
1554 | data->tach_mode = lm85_read_value(client, | |
1555 | ADM1027_REG_CONFIG3 ); | |
1556 | data->fan_ppr = lm85_read_value(client, | |
1557 | ADM1027_REG_FAN_PPR ); | |
1558 | } | |
1559 | ||
1560 | data->last_config = jiffies; | |
1561 | }; /* last_config */ | |
1562 | ||
1563 | data->valid = 1; | |
1564 | ||
9a61bf63 | 1565 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1566 | |
1567 | return data; | |
1568 | } | |
1569 | ||
1570 | ||
1571 | static int __init sm_lm85_init(void) | |
1572 | { | |
1573 | return i2c_add_driver(&lm85_driver); | |
1574 | } | |
1575 | ||
1576 | static void __exit sm_lm85_exit(void) | |
1577 | { | |
1578 | i2c_del_driver(&lm85_driver); | |
1579 | } | |
1580 | ||
1581 | /* Thanks to Richard Barrington for adding the LM85 to sensors-detect. | |
1582 | * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with | |
1583 | * post 2.7.0 CVS changes. | |
1584 | */ | |
1585 | MODULE_LICENSE("GPL"); | |
1586 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com"); | |
1587 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); | |
1588 | ||
1589 | module_init(sm_lm85_init); | |
1590 | module_exit(sm_lm85_exit); |