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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> |
943b0830 | 33 | #include <linux/err.h> |
9a61bf63 | 34 | #include <linux/mutex.h> |
1da177e4 LT |
35 | |
36 | /* Addresses to scan */ | |
37 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; | |
1da177e4 LT |
38 | |
39 | /* Insmod parameters */ | |
f4b50261 | 40 | I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102); |
1da177e4 LT |
41 | |
42 | /* The LM85 registers */ | |
43 | ||
44 | #define LM85_REG_IN(nr) (0x20 + (nr)) | |
45 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
46 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
47 | ||
48 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) | |
49 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
50 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
51 | ||
52 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
53 | #define LM85_REG_FAN(nr) (0x28 + (nr) *2) | |
54 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) *2) | |
55 | ||
56 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
57 | ||
58 | #define ADT7463_REG_OPPOINT(nr) (0x33 + (nr)) | |
59 | ||
60 | #define ADT7463_REG_TMIN_CTL1 0x36 | |
61 | #define ADT7463_REG_TMIN_CTL2 0x37 | |
62 | ||
63 | #define LM85_REG_DEVICE 0x3d | |
64 | #define LM85_REG_COMPANY 0x3e | |
65 | #define LM85_REG_VERSTEP 0x3f | |
66 | /* These are the recognized values for the above regs */ | |
67 | #define LM85_DEVICE_ADX 0x27 | |
68 | #define LM85_COMPANY_NATIONAL 0x01 | |
69 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
70 | #define LM85_COMPANY_SMSC 0x5c | |
71 | #define LM85_VERSTEP_VMASK 0xf0 | |
72 | #define LM85_VERSTEP_GENERIC 0x60 | |
73 | #define LM85_VERSTEP_LM85C 0x60 | |
74 | #define LM85_VERSTEP_LM85B 0x62 | |
75 | #define LM85_VERSTEP_ADM1027 0x60 | |
76 | #define LM85_VERSTEP_ADT7463 0x62 | |
77 | #define LM85_VERSTEP_ADT7463C 0x6A | |
78 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
79 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
80 | #define LM85_VERSTEP_EMC6D102 0x65 | |
81 | ||
82 | #define LM85_REG_CONFIG 0x40 | |
83 | ||
84 | #define LM85_REG_ALARM1 0x41 | |
85 | #define LM85_REG_ALARM2 0x42 | |
86 | ||
87 | #define LM85_REG_VID 0x43 | |
88 | ||
89 | /* Automated FAN control */ | |
90 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
91 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
92 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
93 | #define LM85_REG_AFAN_SPIKE2 0x63 | |
94 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) | |
95 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
96 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
97 | #define LM85_REG_AFAN_HYST1 0x6d | |
98 | #define LM85_REG_AFAN_HYST2 0x6e | |
99 | ||
100 | #define LM85_REG_TACH_MODE 0x74 | |
101 | #define LM85_REG_SPINUP_CTL 0x75 | |
102 | ||
103 | #define ADM1027_REG_TEMP_OFFSET(nr) (0x70 + (nr)) | |
104 | #define ADM1027_REG_CONFIG2 0x73 | |
105 | #define ADM1027_REG_INTMASK1 0x74 | |
106 | #define ADM1027_REG_INTMASK2 0x75 | |
107 | #define ADM1027_REG_EXTEND_ADC1 0x76 | |
108 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
109 | #define ADM1027_REG_CONFIG3 0x78 | |
110 | #define ADM1027_REG_FAN_PPR 0x7b | |
111 | ||
112 | #define ADT7463_REG_THERM 0x79 | |
113 | #define ADT7463_REG_THERM_LIMIT 0x7A | |
114 | ||
115 | #define EMC6D100_REG_ALARM3 0x7d | |
116 | /* IN5, IN6 and IN7 */ | |
117 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr)-5)) | |
118 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr)-5) * 2) | |
119 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr)-5) * 2) | |
120 | #define EMC6D102_REG_EXTEND_ADC1 0x85 | |
121 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
122 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
123 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
124 | ||
125 | #define LM85_ALARM_IN0 0x0001 | |
126 | #define LM85_ALARM_IN1 0x0002 | |
127 | #define LM85_ALARM_IN2 0x0004 | |
128 | #define LM85_ALARM_IN3 0x0008 | |
129 | #define LM85_ALARM_TEMP1 0x0010 | |
130 | #define LM85_ALARM_TEMP2 0x0020 | |
131 | #define LM85_ALARM_TEMP3 0x0040 | |
132 | #define LM85_ALARM_ALARM2 0x0080 | |
133 | #define LM85_ALARM_IN4 0x0100 | |
134 | #define LM85_ALARM_RESERVED 0x0200 | |
135 | #define LM85_ALARM_FAN1 0x0400 | |
136 | #define LM85_ALARM_FAN2 0x0800 | |
137 | #define LM85_ALARM_FAN3 0x1000 | |
138 | #define LM85_ALARM_FAN4 0x2000 | |
139 | #define LM85_ALARM_TEMP1_FAULT 0x4000 | |
140 | #define LM85_ALARM_TEMP3_FAULT 0x8000 | |
141 | ||
142 | ||
143 | /* Conversions. Rounding and limit checking is only done on the TO_REG | |
144 | variants. Note that you should be a bit careful with which arguments | |
145 | these macros are called: arguments may be evaluated more than once. | |
146 | */ | |
147 | ||
148 | /* IN are scaled acording to built-in resistors */ | |
149 | static int lm85_scaling[] = { /* .001 Volts */ | |
150 | 2500, 2250, 3300, 5000, 12000, | |
151 | 3300, 1500, 1800 /*EMC6D100*/ | |
152 | }; | |
153 | #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from)) | |
154 | ||
155 | #define INS_TO_REG(n,val) \ | |
156 | SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255) | |
157 | ||
158 | #define INSEXT_FROM_REG(n,val,ext,scale) \ | |
159 | SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n]) | |
160 | ||
161 | #define INS_FROM_REG(n,val) INSEXT_FROM_REG(n,val,0,1) | |
162 | ||
163 | /* FAN speed is measured using 90kHz clock */ | |
164 | #define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534)) | |
165 | #define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val)) | |
166 | ||
167 | /* Temperature is reported in .001 degC increments */ | |
168 | #define TEMP_TO_REG(val) \ | |
169 | SENSORS_LIMIT(SCALE(val,1000,1),-127,127) | |
170 | #define TEMPEXT_FROM_REG(val,ext,scale) \ | |
171 | SCALE((val)*scale + (ext),scale,1000) | |
172 | #define TEMP_FROM_REG(val) \ | |
173 | TEMPEXT_FROM_REG(val,0,1) | |
174 | ||
175 | #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255)) | |
176 | #define PWM_FROM_REG(val) (val) | |
177 | ||
178 | ||
179 | /* ZONEs have the following parameters: | |
180 | * Limit (low) temp, 1. degC | |
181 | * Hysteresis (below limit), 1. degC (0-15) | |
182 | * Range of speed control, .1 degC (2-80) | |
183 | * Critical (high) temp, 1. degC | |
184 | * | |
185 | * FAN PWMs have the following parameters: | |
186 | * Reference Zone, 1, 2, 3, etc. | |
187 | * Spinup time, .05 sec | |
188 | * PWM value at limit/low temp, 1 count | |
189 | * PWM Frequency, 1. Hz | |
190 | * PWM is Min or OFF below limit, flag | |
191 | * Invert PWM output, flag | |
192 | * | |
193 | * Some chips filter the temp, others the fan. | |
194 | * Filter constant (or disabled) .1 seconds | |
195 | */ | |
196 | ||
197 | /* These are the zone temperature range encodings in .001 degree C */ | |
198 | static int lm85_range_map[] = { | |
199 | 2000, 2500, 3300, 4000, 5000, 6600, | |
200 | 8000, 10000, 13300, 16000, 20000, 26600, | |
201 | 32000, 40000, 53300, 80000 | |
202 | }; | |
203 | static int RANGE_TO_REG( int range ) | |
204 | { | |
205 | int i; | |
206 | ||
207 | if ( range < lm85_range_map[0] ) { | |
208 | return 0 ; | |
209 | } else if ( range > lm85_range_map[15] ) { | |
210 | return 15 ; | |
211 | } else { /* find closest match */ | |
212 | for ( i = 14 ; i >= 0 ; --i ) { | |
213 | if ( range > lm85_range_map[i] ) { /* range bracketed */ | |
214 | if ((lm85_range_map[i+1] - range) < | |
215 | (range - lm85_range_map[i])) { | |
216 | i++; | |
217 | break; | |
218 | } | |
219 | break; | |
220 | } | |
221 | } | |
222 | } | |
223 | return( i & 0x0f ); | |
224 | } | |
225 | #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f]) | |
226 | ||
227 | /* These are the Acoustic Enhancement, or Temperature smoothing encodings | |
228 | * NOTE: The enable/disable bit is INCLUDED in these encodings as the | |
229 | * MSB (bit 3, value 8). If the enable bit is 0, the encoded value | |
230 | * is ignored, or set to 0. | |
231 | */ | |
232 | /* These are the PWM frequency encodings */ | |
233 | static int lm85_freq_map[] = { /* .1 Hz */ | |
234 | 100, 150, 230, 300, 380, 470, 620, 940 | |
235 | }; | |
236 | static int FREQ_TO_REG( int freq ) | |
237 | { | |
238 | int i; | |
239 | ||
240 | if( freq >= lm85_freq_map[7] ) { return 7 ; } | |
241 | for( i = 0 ; i < 7 ; ++i ) | |
242 | if( freq <= lm85_freq_map[i] ) | |
243 | break ; | |
244 | return( i & 0x07 ); | |
245 | } | |
246 | #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07]) | |
247 | ||
248 | /* Since we can't use strings, I'm abusing these numbers | |
249 | * to stand in for the following meanings: | |
250 | * 1 -- PWM responds to Zone 1 | |
251 | * 2 -- PWM responds to Zone 2 | |
252 | * 3 -- PWM responds to Zone 3 | |
253 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
254 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
255 | * 0 -- PWM is always at 0% (ie, off) | |
256 | * -1 -- PWM is always at 100% | |
257 | * -2 -- PWM responds to manual control | |
258 | */ | |
259 | ||
260 | static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; | |
261 | #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07]) | |
262 | ||
263 | static int ZONE_TO_REG( int zone ) | |
264 | { | |
265 | int i; | |
266 | ||
267 | for( i = 0 ; i <= 7 ; ++i ) | |
268 | if( zone == lm85_zone_map[i] ) | |
269 | break ; | |
270 | if( i > 7 ) /* Not found. */ | |
271 | i = 3; /* Always 100% */ | |
272 | return( (i & 0x07)<<5 ); | |
273 | } | |
274 | ||
275 | #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15)) | |
276 | #define HYST_FROM_REG(val) ((val)*1000) | |
277 | ||
278 | #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127)) | |
279 | #define OFFSET_FROM_REG(val) ((val)*25) | |
280 | ||
281 | #define PPR_MASK(fan) (0x03<<(fan *2)) | |
282 | #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2)) | |
283 | #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1) | |
284 | ||
1da177e4 LT |
285 | /* Chip sampling rates |
286 | * | |
287 | * Some sensors are not updated more frequently than once per second | |
288 | * so it doesn't make sense to read them more often than that. | |
289 | * We cache the results and return the saved data if the driver | |
290 | * is called again before a second has elapsed. | |
291 | * | |
292 | * Also, there is significant configuration data for this chip | |
293 | * given the automatic PWM fan control that is possible. There | |
294 | * are about 47 bytes of config data to only 22 bytes of actual | |
295 | * readings. So, we keep the config data up to date in the cache | |
296 | * when it is written and only sample it once every 1 *minute* | |
297 | */ | |
298 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
299 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
300 | ||
301 | /* For each registered LM85, we need to keep some data in memory. That | |
302 | data is pointed to by lm85_list[NR]->data. The structure itself is | |
303 | dynamically allocated, at the same time when a new lm85 client is | |
304 | allocated. */ | |
305 | ||
306 | /* LM85 can automatically adjust fan speeds based on temperature | |
307 | * This structure encapsulates an entire Zone config. There are | |
308 | * three zones (one for each temperature input) on the lm85 | |
309 | */ | |
310 | struct lm85_zone { | |
311 | s8 limit; /* Low temp limit */ | |
312 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
313 | u8 range; /* Temp range, encoded */ | |
314 | s8 critical; /* "All fans ON" temp limit */ | |
315 | u8 off_desired; /* Actual "off" temperature specified. Preserved | |
316 | * to prevent "drift" as other autofan control | |
317 | * values change. | |
318 | */ | |
319 | u8 max_desired; /* Actual "max" temperature specified. Preserved | |
320 | * to prevent "drift" as other autofan control | |
321 | * values change. | |
322 | */ | |
323 | }; | |
324 | ||
325 | struct lm85_autofan { | |
326 | u8 config; /* Register value */ | |
327 | u8 freq; /* PWM frequency, encoded */ | |
328 | u8 min_pwm; /* Minimum PWM value, encoded */ | |
329 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
330 | }; | |
331 | ||
332 | struct lm85_data { | |
333 | struct i2c_client client; | |
943b0830 | 334 | struct class_device *class_dev; |
1da177e4 LT |
335 | enum chips type; |
336 | ||
9a61bf63 | 337 | struct mutex update_lock; |
1da177e4 LT |
338 | int valid; /* !=0 if following fields are valid */ |
339 | unsigned long last_reading; /* In jiffies */ | |
340 | unsigned long last_config; /* In jiffies */ | |
341 | ||
342 | u8 in[8]; /* Register value */ | |
343 | u8 in_max[8]; /* Register value */ | |
344 | u8 in_min[8]; /* Register value */ | |
345 | s8 temp[3]; /* Register value */ | |
346 | s8 temp_min[3]; /* Register value */ | |
347 | s8 temp_max[3]; /* Register value */ | |
348 | s8 temp_offset[3]; /* Register value */ | |
349 | u16 fan[4]; /* Register value */ | |
350 | u16 fan_min[4]; /* Register value */ | |
351 | u8 pwm[3]; /* Register value */ | |
352 | u8 spinup_ctl; /* Register encoding, combined */ | |
353 | u8 tach_mode; /* Register encoding, combined */ | |
354 | u8 temp_ext[3]; /* Decoded values */ | |
355 | u8 in_ext[8]; /* Decoded values */ | |
356 | u8 adc_scale; /* ADC Extended bits scaling factor */ | |
357 | u8 fan_ppr; /* Register value */ | |
358 | u8 smooth[3]; /* Register encoding */ | |
359 | u8 vid; /* Register value */ | |
360 | u8 vrm; /* VRM version */ | |
361 | u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */ | |
362 | u8 oppoint[3]; /* Register value */ | |
363 | u16 tmin_ctl; /* Register value */ | |
364 | unsigned long therm_total; /* Cummulative therm count */ | |
365 | u8 therm_limit; /* Register value */ | |
366 | u32 alarms; /* Register encoding, combined */ | |
367 | struct lm85_autofan autofan[3]; | |
368 | struct lm85_zone zone[3]; | |
369 | }; | |
370 | ||
371 | static int lm85_attach_adapter(struct i2c_adapter *adapter); | |
372 | static int lm85_detect(struct i2c_adapter *adapter, int address, | |
373 | int kind); | |
374 | static int lm85_detach_client(struct i2c_client *client); | |
375 | ||
f6c27fc1 DJ |
376 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
377 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value); | |
1da177e4 LT |
378 | static struct lm85_data *lm85_update_device(struct device *dev); |
379 | static void lm85_init_client(struct i2c_client *client); | |
380 | ||
381 | ||
382 | static struct i2c_driver lm85_driver = { | |
cdaf7934 | 383 | .driver = { |
cdaf7934 LR |
384 | .name = "lm85", |
385 | }, | |
1da177e4 | 386 | .id = I2C_DRIVERID_LM85, |
1da177e4 LT |
387 | .attach_adapter = lm85_attach_adapter, |
388 | .detach_client = lm85_detach_client, | |
389 | }; | |
390 | ||
391 | ||
392 | /* 4 Fans */ | |
393 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
394 | { | |
395 | struct lm85_data *data = lm85_update_device(dev); | |
396 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) ); | |
397 | } | |
398 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
399 | { | |
400 | struct lm85_data *data = lm85_update_device(dev); | |
401 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) ); | |
402 | } | |
403 | static ssize_t set_fan_min(struct device *dev, const char *buf, | |
404 | size_t count, int nr) | |
405 | { | |
406 | struct i2c_client *client = to_i2c_client(dev); | |
407 | struct lm85_data *data = i2c_get_clientdata(client); | |
408 | long val = simple_strtol(buf, NULL, 10); | |
409 | ||
9a61bf63 | 410 | mutex_lock(&data->update_lock); |
1da177e4 LT |
411 | data->fan_min[nr] = FAN_TO_REG(val); |
412 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 413 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
414 | return count; |
415 | } | |
416 | ||
417 | #define show_fan_offset(offset) \ | |
8627f9ba | 418 | static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
419 | { \ |
420 | return show_fan(dev, buf, offset - 1); \ | |
421 | } \ | |
8627f9ba | 422 | static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
423 | { \ |
424 | return show_fan_min(dev, buf, offset - 1); \ | |
425 | } \ | |
8627f9ba | 426 | static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
427 | const char *buf, size_t count) \ |
428 | { \ | |
429 | return set_fan_min(dev, buf, count, offset - 1); \ | |
430 | } \ | |
431 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \ | |
432 | NULL); \ | |
433 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
434 | show_fan_##offset##_min, set_fan_##offset##_min); | |
435 | ||
436 | show_fan_offset(1); | |
437 | show_fan_offset(2); | |
438 | show_fan_offset(3); | |
439 | show_fan_offset(4); | |
440 | ||
441 | /* vid, vrm, alarms */ | |
442 | ||
8627f9ba | 443 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
444 | { |
445 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
446 | int vid; |
447 | ||
448 | if (data->type == adt7463 && (data->vid & 0x80)) { | |
449 | /* 6-pin VID (VRM 10) */ | |
450 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
451 | } else { | |
452 | /* 5-pin VID (VRM 9) */ | |
453 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
454 | } | |
455 | ||
456 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
457 | } |
458 | ||
459 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
460 | ||
8627f9ba | 461 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
462 | { |
463 | struct lm85_data *data = lm85_update_device(dev); | |
464 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
465 | } | |
466 | ||
8627f9ba | 467 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
468 | { |
469 | struct i2c_client *client = to_i2c_client(dev); | |
470 | struct lm85_data *data = i2c_get_clientdata(client); | |
471 | u32 val; | |
472 | ||
473 | val = simple_strtoul(buf, NULL, 10); | |
474 | data->vrm = val; | |
475 | return count; | |
476 | } | |
477 | ||
478 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
479 | ||
8627f9ba | 480 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
481 | { |
482 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 483 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
484 | } |
485 | ||
486 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
487 | ||
488 | /* pwm */ | |
489 | ||
490 | static ssize_t show_pwm(struct device *dev, char *buf, int nr) | |
491 | { | |
492 | struct lm85_data *data = lm85_update_device(dev); | |
493 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) ); | |
494 | } | |
495 | static ssize_t set_pwm(struct device *dev, const char *buf, | |
496 | size_t count, int nr) | |
497 | { | |
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 | } | |
508 | static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr) | |
509 | { | |
510 | struct lm85_data *data = lm85_update_device(dev); | |
511 | int pwm_zone; | |
512 | ||
513 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
514 | return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) ); | |
515 | } | |
516 | ||
517 | #define show_pwm_reg(offset) \ | |
8627f9ba | 518 | static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
519 | { \ |
520 | return show_pwm(dev, buf, offset - 1); \ | |
521 | } \ | |
8627f9ba | 522 | static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
523 | const char *buf, size_t count) \ |
524 | { \ | |
525 | return set_pwm(dev, buf, count, offset - 1); \ | |
526 | } \ | |
8627f9ba | 527 | static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
528 | { \ |
529 | return show_pwm_enable(dev, buf, offset - 1); \ | |
530 | } \ | |
531 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
532 | show_pwm_##offset, set_pwm_##offset); \ | |
533 | static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, \ | |
534 | show_pwm_enable##offset, NULL); | |
535 | ||
536 | show_pwm_reg(1); | |
537 | show_pwm_reg(2); | |
538 | show_pwm_reg(3); | |
539 | ||
540 | /* Voltages */ | |
541 | ||
542 | static ssize_t show_in(struct device *dev, char *buf, int nr) | |
543 | { | |
544 | struct lm85_data *data = lm85_update_device(dev); | |
545 | return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr, | |
546 | data->in[nr], | |
547 | data->in_ext[nr], | |
548 | data->adc_scale) ); | |
549 | } | |
550 | static ssize_t show_in_min(struct device *dev, char *buf, int nr) | |
551 | { | |
552 | struct lm85_data *data = lm85_update_device(dev); | |
553 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) ); | |
554 | } | |
555 | static ssize_t set_in_min(struct device *dev, const char *buf, | |
556 | size_t count, int nr) | |
557 | { | |
558 | struct i2c_client *client = to_i2c_client(dev); | |
559 | struct lm85_data *data = i2c_get_clientdata(client); | |
560 | long val = simple_strtol(buf, NULL, 10); | |
561 | ||
9a61bf63 | 562 | mutex_lock(&data->update_lock); |
1da177e4 LT |
563 | data->in_min[nr] = INS_TO_REG(nr, val); |
564 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 565 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
566 | return count; |
567 | } | |
568 | static ssize_t show_in_max(struct device *dev, char *buf, int nr) | |
569 | { | |
570 | struct lm85_data *data = lm85_update_device(dev); | |
571 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) ); | |
572 | } | |
573 | static ssize_t set_in_max(struct device *dev, const char *buf, | |
574 | size_t count, int nr) | |
575 | { | |
576 | struct i2c_client *client = to_i2c_client(dev); | |
577 | struct lm85_data *data = i2c_get_clientdata(client); | |
578 | long val = simple_strtol(buf, NULL, 10); | |
579 | ||
9a61bf63 | 580 | mutex_lock(&data->update_lock); |
1da177e4 LT |
581 | data->in_max[nr] = INS_TO_REG(nr, val); |
582 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 583 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
584 | return count; |
585 | } | |
586 | #define show_in_reg(offset) \ | |
8627f9ba | 587 | static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
588 | { \ |
589 | return show_in(dev, buf, offset); \ | |
590 | } \ | |
8627f9ba | 591 | static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
592 | { \ |
593 | return show_in_min(dev, buf, offset); \ | |
594 | } \ | |
8627f9ba | 595 | static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
596 | { \ |
597 | return show_in_max(dev, buf, offset); \ | |
598 | } \ | |
8627f9ba | 599 | static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
600 | const char *buf, size_t count) \ |
601 | { \ | |
602 | return set_in_min(dev, buf, count, offset); \ | |
603 | } \ | |
8627f9ba | 604 | static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
605 | const char *buf, size_t count) \ |
606 | { \ | |
607 | return set_in_max(dev, buf, count, offset); \ | |
608 | } \ | |
609 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, \ | |
610 | NULL); \ | |
611 | static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
612 | show_in_##offset##_min, set_in_##offset##_min); \ | |
613 | static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
614 | show_in_##offset##_max, set_in_##offset##_max); | |
615 | ||
616 | show_in_reg(0); | |
617 | show_in_reg(1); | |
618 | show_in_reg(2); | |
619 | show_in_reg(3); | |
620 | show_in_reg(4); | |
621 | ||
622 | /* Temps */ | |
623 | ||
624 | static ssize_t show_temp(struct device *dev, char *buf, int nr) | |
625 | { | |
626 | struct lm85_data *data = lm85_update_device(dev); | |
627 | return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr], | |
628 | data->temp_ext[nr], | |
629 | data->adc_scale) ); | |
630 | } | |
631 | static ssize_t show_temp_min(struct device *dev, char *buf, int nr) | |
632 | { | |
633 | struct lm85_data *data = lm85_update_device(dev); | |
634 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) ); | |
635 | } | |
636 | static ssize_t set_temp_min(struct device *dev, const char *buf, | |
637 | size_t count, int nr) | |
638 | { | |
639 | struct i2c_client *client = to_i2c_client(dev); | |
640 | struct lm85_data *data = i2c_get_clientdata(client); | |
641 | long val = simple_strtol(buf, NULL, 10); | |
642 | ||
9a61bf63 | 643 | mutex_lock(&data->update_lock); |
1da177e4 LT |
644 | data->temp_min[nr] = TEMP_TO_REG(val); |
645 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 646 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
647 | return count; |
648 | } | |
649 | static ssize_t show_temp_max(struct device *dev, char *buf, int nr) | |
650 | { | |
651 | struct lm85_data *data = lm85_update_device(dev); | |
652 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) ); | |
653 | } | |
654 | static ssize_t set_temp_max(struct device *dev, const char *buf, | |
655 | size_t count, int nr) | |
656 | { | |
657 | struct i2c_client *client = to_i2c_client(dev); | |
658 | struct lm85_data *data = i2c_get_clientdata(client); | |
659 | long val = simple_strtol(buf, NULL, 10); | |
660 | ||
9a61bf63 | 661 | mutex_lock(&data->update_lock); |
1da177e4 LT |
662 | data->temp_max[nr] = TEMP_TO_REG(val); |
663 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 664 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
665 | return count; |
666 | } | |
667 | #define show_temp_reg(offset) \ | |
8627f9ba | 668 | static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
669 | { \ |
670 | return show_temp(dev, buf, offset - 1); \ | |
671 | } \ | |
8627f9ba | 672 | static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
673 | { \ |
674 | return show_temp_min(dev, buf, offset - 1); \ | |
675 | } \ | |
8627f9ba | 676 | static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
677 | { \ |
678 | return show_temp_max(dev, buf, offset - 1); \ | |
679 | } \ | |
8627f9ba | 680 | static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
681 | const char *buf, size_t count) \ |
682 | { \ | |
683 | return set_temp_min(dev, buf, count, offset - 1); \ | |
684 | } \ | |
8627f9ba | 685 | static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
686 | const char *buf, size_t count) \ |
687 | { \ | |
688 | return set_temp_max(dev, buf, count, offset - 1); \ | |
689 | } \ | |
690 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \ | |
691 | NULL); \ | |
692 | static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
693 | show_temp_##offset##_min, set_temp_##offset##_min); \ | |
694 | static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
695 | show_temp_##offset##_max, set_temp_##offset##_max); | |
696 | ||
697 | show_temp_reg(1); | |
698 | show_temp_reg(2); | |
699 | show_temp_reg(3); | |
700 | ||
701 | ||
702 | /* Automatic PWM control */ | |
703 | ||
704 | static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr) | |
705 | { | |
706 | struct lm85_data *data = lm85_update_device(dev); | |
707 | return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config)); | |
708 | } | |
709 | static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf, | |
710 | size_t count, int nr) | |
711 | { | |
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].config = (data->autofan[nr].config & (~0xe0)) |
718 | | ZONE_TO_REG(val) ; | |
719 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
720 | data->autofan[nr].config); | |
9a61bf63 | 721 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
722 | return count; |
723 | } | |
724 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr) | |
725 | { | |
726 | struct lm85_data *data = lm85_update_device(dev); | |
727 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); | |
728 | } | |
729 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf, | |
730 | size_t count, int nr) | |
731 | { | |
732 | struct i2c_client *client = to_i2c_client(dev); | |
733 | struct lm85_data *data = i2c_get_clientdata(client); | |
734 | long val = simple_strtol(buf, NULL, 10); | |
735 | ||
9a61bf63 | 736 | mutex_lock(&data->update_lock); |
1da177e4 LT |
737 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
738 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
739 | data->autofan[nr].min_pwm); | |
9a61bf63 | 740 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
741 | return count; |
742 | } | |
743 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr) | |
744 | { | |
745 | struct lm85_data *data = lm85_update_device(dev); | |
746 | return sprintf(buf,"%d\n", data->autofan[nr].min_off); | |
747 | } | |
748 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf, | |
749 | size_t count, int nr) | |
750 | { | |
751 | struct i2c_client *client = to_i2c_client(dev); | |
752 | struct lm85_data *data = i2c_get_clientdata(client); | |
753 | long val = simple_strtol(buf, NULL, 10); | |
754 | ||
9a61bf63 | 755 | mutex_lock(&data->update_lock); |
1da177e4 LT |
756 | data->autofan[nr].min_off = val; |
757 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0] | |
758 | | data->syncpwm3 | |
759 | | (data->autofan[0].min_off ? 0x20 : 0) | |
760 | | (data->autofan[1].min_off ? 0x40 : 0) | |
761 | | (data->autofan[2].min_off ? 0x80 : 0) | |
762 | ); | |
9a61bf63 | 763 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
764 | return count; |
765 | } | |
766 | static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr) | |
767 | { | |
768 | struct lm85_data *data = lm85_update_device(dev); | |
769 | return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq)); | |
770 | } | |
771 | static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf, | |
772 | size_t count, int nr) | |
773 | { | |
774 | struct i2c_client *client = to_i2c_client(dev); | |
775 | struct lm85_data *data = i2c_get_clientdata(client); | |
776 | long val = simple_strtol(buf, NULL, 10); | |
777 | ||
9a61bf63 | 778 | mutex_lock(&data->update_lock); |
1da177e4 LT |
779 | data->autofan[nr].freq = FREQ_TO_REG(val); |
780 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
781 | (data->zone[nr].range << 4) | |
782 | | data->autofan[nr].freq | |
783 | ); | |
9a61bf63 | 784 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
785 | return count; |
786 | } | |
787 | #define pwm_auto(offset) \ | |
8627f9ba | 788 | static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
789 | char *buf) \ |
790 | { \ | |
791 | return show_pwm_auto_channels(dev, buf, offset - 1); \ | |
792 | } \ | |
8627f9ba | 793 | static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
794 | const char *buf, size_t count) \ |
795 | { \ | |
796 | return set_pwm_auto_channels(dev, buf, count, offset - 1); \ | |
797 | } \ | |
8627f9ba | 798 | static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
799 | char *buf) \ |
800 | { \ | |
801 | return show_pwm_auto_pwm_min(dev, buf, offset - 1); \ | |
802 | } \ | |
8627f9ba | 803 | static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
804 | const char *buf, size_t count) \ |
805 | { \ | |
806 | return set_pwm_auto_pwm_min(dev, buf, count, offset - 1); \ | |
807 | } \ | |
8627f9ba | 808 | static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
809 | char *buf) \ |
810 | { \ | |
811 | return show_pwm_auto_pwm_minctl(dev, buf, offset - 1); \ | |
812 | } \ | |
8627f9ba | 813 | static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
814 | const char *buf, size_t count) \ |
815 | { \ | |
816 | return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1); \ | |
817 | } \ | |
8627f9ba | 818 | static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
819 | char *buf) \ |
820 | { \ | |
821 | return show_pwm_auto_pwm_freq(dev, buf, offset - 1); \ | |
822 | } \ | |
8627f9ba | 823 | static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
824 | const char *buf, size_t count) \ |
825 | { \ | |
826 | return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1); \ | |
827 | } \ | |
828 | static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR, \ | |
829 | show_pwm##offset##_auto_channels, \ | |
830 | set_pwm##offset##_auto_channels); \ | |
831 | static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR, \ | |
832 | show_pwm##offset##_auto_pwm_min, \ | |
833 | set_pwm##offset##_auto_pwm_min); \ | |
834 | static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR, \ | |
835 | show_pwm##offset##_auto_pwm_minctl, \ | |
836 | set_pwm##offset##_auto_pwm_minctl); \ | |
837 | static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR, \ | |
838 | show_pwm##offset##_auto_pwm_freq, \ | |
839 | set_pwm##offset##_auto_pwm_freq); | |
840 | pwm_auto(1); | |
841 | pwm_auto(2); | |
842 | pwm_auto(3); | |
843 | ||
844 | /* Temperature settings for automatic PWM control */ | |
845 | ||
846 | static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr) | |
847 | { | |
848 | struct lm85_data *data = lm85_update_device(dev); | |
849 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) - | |
850 | HYST_FROM_REG(data->zone[nr].hyst)); | |
851 | } | |
852 | static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf, | |
853 | size_t count, int nr) | |
854 | { | |
855 | struct i2c_client *client = to_i2c_client(dev); | |
856 | struct lm85_data *data = i2c_get_clientdata(client); | |
857 | int min; | |
858 | long val = simple_strtol(buf, NULL, 10); | |
859 | ||
9a61bf63 | 860 | mutex_lock(&data->update_lock); |
1da177e4 LT |
861 | min = TEMP_FROM_REG(data->zone[nr].limit); |
862 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
863 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
864 | if ( nr == 0 || nr == 1 ) { | |
865 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
866 | (data->zone[0].hyst << 4) | |
867 | | data->zone[1].hyst | |
868 | ); | |
869 | } else { | |
870 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
871 | (data->zone[2].hyst << 4) | |
872 | ); | |
873 | } | |
9a61bf63 | 874 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
875 | return count; |
876 | } | |
877 | static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr) | |
878 | { | |
879 | struct lm85_data *data = lm85_update_device(dev); | |
880 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) ); | |
881 | } | |
882 | static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf, | |
883 | size_t count, int nr) | |
884 | { | |
885 | struct i2c_client *client = to_i2c_client(dev); | |
886 | struct lm85_data *data = i2c_get_clientdata(client); | |
887 | long val = simple_strtol(buf, NULL, 10); | |
888 | ||
9a61bf63 | 889 | mutex_lock(&data->update_lock); |
1da177e4 LT |
890 | data->zone[nr].limit = TEMP_TO_REG(val); |
891 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
892 | data->zone[nr].limit); | |
893 | ||
894 | /* Update temp_auto_max and temp_auto_range */ | |
895 | data->zone[nr].range = RANGE_TO_REG( | |
896 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
897 | TEMP_FROM_REG(data->zone[nr].limit)); | |
898 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
899 | ((data->zone[nr].range & 0x0f) << 4) | |
900 | | (data->autofan[nr].freq & 0x07)); | |
901 | ||
902 | /* Update temp_auto_hyst and temp_auto_off */ | |
903 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
904 | data->zone[nr].limit) - TEMP_FROM_REG( | |
905 | data->zone[nr].off_desired)); | |
906 | if ( nr == 0 || nr == 1 ) { | |
907 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
908 | (data->zone[0].hyst << 4) | |
909 | | data->zone[1].hyst | |
910 | ); | |
911 | } else { | |
912 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
913 | (data->zone[2].hyst << 4) | |
914 | ); | |
915 | } | |
9a61bf63 | 916 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
917 | return count; |
918 | } | |
919 | static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr) | |
920 | { | |
921 | struct lm85_data *data = lm85_update_device(dev); | |
922 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) + | |
923 | RANGE_FROM_REG(data->zone[nr].range)); | |
924 | } | |
925 | static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf, | |
926 | size_t count, int nr) | |
927 | { | |
928 | struct i2c_client *client = to_i2c_client(dev); | |
929 | struct lm85_data *data = i2c_get_clientdata(client); | |
930 | int min; | |
931 | long val = simple_strtol(buf, NULL, 10); | |
932 | ||
9a61bf63 | 933 | mutex_lock(&data->update_lock); |
1da177e4 LT |
934 | min = TEMP_FROM_REG(data->zone[nr].limit); |
935 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
936 | data->zone[nr].range = RANGE_TO_REG( | |
937 | val - min); | |
938 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
939 | ((data->zone[nr].range & 0x0f) << 4) | |
940 | | (data->autofan[nr].freq & 0x07)); | |
9a61bf63 | 941 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
942 | return count; |
943 | } | |
944 | static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr) | |
945 | { | |
946 | struct lm85_data *data = lm85_update_device(dev); | |
947 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical)); | |
948 | } | |
949 | static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf, | |
950 | size_t count, int nr) | |
951 | { | |
952 | struct i2c_client *client = to_i2c_client(dev); | |
953 | struct lm85_data *data = i2c_get_clientdata(client); | |
954 | long val = simple_strtol(buf, NULL, 10); | |
955 | ||
9a61bf63 | 956 | mutex_lock(&data->update_lock); |
1da177e4 LT |
957 | data->zone[nr].critical = TEMP_TO_REG(val); |
958 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
959 | data->zone[nr].critical); | |
9a61bf63 | 960 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
961 | return count; |
962 | } | |
963 | #define temp_auto(offset) \ | |
8627f9ba | 964 | static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
965 | char *buf) \ |
966 | { \ | |
967 | return show_temp_auto_temp_off(dev, buf, offset - 1); \ | |
968 | } \ | |
8627f9ba | 969 | static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
970 | const char *buf, size_t count) \ |
971 | { \ | |
972 | return set_temp_auto_temp_off(dev, buf, count, offset - 1); \ | |
973 | } \ | |
8627f9ba | 974 | static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
975 | char *buf) \ |
976 | { \ | |
977 | return show_temp_auto_temp_min(dev, buf, offset - 1); \ | |
978 | } \ | |
8627f9ba | 979 | static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
980 | const char *buf, size_t count) \ |
981 | { \ | |
982 | return set_temp_auto_temp_min(dev, buf, count, offset - 1); \ | |
983 | } \ | |
8627f9ba | 984 | static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
985 | char *buf) \ |
986 | { \ | |
987 | return show_temp_auto_temp_max(dev, buf, offset - 1); \ | |
988 | } \ | |
8627f9ba | 989 | static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
990 | const char *buf, size_t count) \ |
991 | { \ | |
992 | return set_temp_auto_temp_max(dev, buf, count, offset - 1); \ | |
993 | } \ | |
8627f9ba | 994 | static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
995 | char *buf) \ |
996 | { \ | |
997 | return show_temp_auto_temp_crit(dev, buf, offset - 1); \ | |
998 | } \ | |
8627f9ba | 999 | static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
1000 | const char *buf, size_t count) \ |
1001 | { \ | |
1002 | return set_temp_auto_temp_crit(dev, buf, count, offset - 1); \ | |
1003 | } \ | |
1004 | static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR, \ | |
1005 | show_temp##offset##_auto_temp_off, \ | |
1006 | set_temp##offset##_auto_temp_off); \ | |
1007 | static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR, \ | |
1008 | show_temp##offset##_auto_temp_min, \ | |
1009 | set_temp##offset##_auto_temp_min); \ | |
1010 | static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR, \ | |
1011 | show_temp##offset##_auto_temp_max, \ | |
1012 | set_temp##offset##_auto_temp_max); \ | |
1013 | static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR, \ | |
1014 | show_temp##offset##_auto_temp_crit, \ | |
1015 | set_temp##offset##_auto_temp_crit); | |
1016 | temp_auto(1); | |
1017 | temp_auto(2); | |
1018 | temp_auto(3); | |
1019 | ||
d8d20615 | 1020 | static int lm85_attach_adapter(struct i2c_adapter *adapter) |
1da177e4 LT |
1021 | { |
1022 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
1023 | return 0; | |
2ed2dc3c | 1024 | return i2c_probe(adapter, &addr_data, lm85_detect); |
1da177e4 LT |
1025 | } |
1026 | ||
0501a381 MH |
1027 | static struct attribute *lm85_attributes[] = { |
1028 | &dev_attr_fan1_input.attr, | |
1029 | &dev_attr_fan2_input.attr, | |
1030 | &dev_attr_fan3_input.attr, | |
1031 | &dev_attr_fan4_input.attr, | |
1032 | &dev_attr_fan1_min.attr, | |
1033 | &dev_attr_fan2_min.attr, | |
1034 | &dev_attr_fan3_min.attr, | |
1035 | &dev_attr_fan4_min.attr, | |
1036 | &dev_attr_pwm1.attr, | |
1037 | &dev_attr_pwm2.attr, | |
1038 | &dev_attr_pwm3.attr, | |
1039 | &dev_attr_pwm1_enable.attr, | |
1040 | &dev_attr_pwm2_enable.attr, | |
1041 | &dev_attr_pwm3_enable.attr, | |
1042 | &dev_attr_in0_input.attr, | |
1043 | &dev_attr_in1_input.attr, | |
1044 | &dev_attr_in2_input.attr, | |
1045 | &dev_attr_in3_input.attr, | |
1046 | &dev_attr_in0_min.attr, | |
1047 | &dev_attr_in1_min.attr, | |
1048 | &dev_attr_in2_min.attr, | |
1049 | &dev_attr_in3_min.attr, | |
1050 | &dev_attr_in0_max.attr, | |
1051 | &dev_attr_in1_max.attr, | |
1052 | &dev_attr_in2_max.attr, | |
1053 | &dev_attr_in3_max.attr, | |
1054 | &dev_attr_temp1_input.attr, | |
1055 | &dev_attr_temp2_input.attr, | |
1056 | &dev_attr_temp3_input.attr, | |
1057 | &dev_attr_temp1_min.attr, | |
1058 | &dev_attr_temp2_min.attr, | |
1059 | &dev_attr_temp3_min.attr, | |
1060 | &dev_attr_temp1_max.attr, | |
1061 | &dev_attr_temp2_max.attr, | |
1062 | &dev_attr_temp3_max.attr, | |
1063 | &dev_attr_vrm.attr, | |
1064 | &dev_attr_cpu0_vid.attr, | |
1065 | &dev_attr_alarms.attr, | |
1066 | &dev_attr_pwm1_auto_channels.attr, | |
1067 | &dev_attr_pwm2_auto_channels.attr, | |
1068 | &dev_attr_pwm3_auto_channels.attr, | |
1069 | &dev_attr_pwm1_auto_pwm_min.attr, | |
1070 | &dev_attr_pwm2_auto_pwm_min.attr, | |
1071 | &dev_attr_pwm3_auto_pwm_min.attr, | |
1072 | &dev_attr_pwm1_auto_pwm_minctl.attr, | |
1073 | &dev_attr_pwm2_auto_pwm_minctl.attr, | |
1074 | &dev_attr_pwm3_auto_pwm_minctl.attr, | |
1075 | &dev_attr_pwm1_auto_pwm_freq.attr, | |
1076 | &dev_attr_pwm2_auto_pwm_freq.attr, | |
1077 | &dev_attr_pwm3_auto_pwm_freq.attr, | |
1078 | &dev_attr_temp1_auto_temp_off.attr, | |
1079 | &dev_attr_temp2_auto_temp_off.attr, | |
1080 | &dev_attr_temp3_auto_temp_off.attr, | |
1081 | &dev_attr_temp1_auto_temp_min.attr, | |
1082 | &dev_attr_temp2_auto_temp_min.attr, | |
1083 | &dev_attr_temp3_auto_temp_min.attr, | |
1084 | &dev_attr_temp1_auto_temp_max.attr, | |
1085 | &dev_attr_temp2_auto_temp_max.attr, | |
1086 | &dev_attr_temp3_auto_temp_max.attr, | |
1087 | &dev_attr_temp1_auto_temp_crit.attr, | |
1088 | &dev_attr_temp2_auto_temp_crit.attr, | |
1089 | &dev_attr_temp3_auto_temp_crit.attr, | |
1090 | ||
1091 | NULL | |
1092 | }; | |
1093 | ||
1094 | static const struct attribute_group lm85_group = { | |
1095 | .attrs = lm85_attributes, | |
1096 | }; | |
1097 | ||
1098 | static struct attribute *lm85_attributes_opt[] = { | |
1099 | &dev_attr_in4_input.attr, | |
1100 | &dev_attr_in4_min.attr, | |
1101 | &dev_attr_in4_max.attr, | |
1102 | ||
1103 | NULL | |
1104 | }; | |
1105 | ||
1106 | static const struct attribute_group lm85_group_opt = { | |
1107 | .attrs = lm85_attributes_opt, | |
1108 | }; | |
1109 | ||
d8d20615 | 1110 | static int lm85_detect(struct i2c_adapter *adapter, int address, |
1da177e4 LT |
1111 | int kind) |
1112 | { | |
1113 | int company, verstep ; | |
1114 | struct i2c_client *new_client = NULL; | |
1115 | struct lm85_data *data; | |
1116 | int err = 0; | |
1117 | const char *type_name = ""; | |
1118 | ||
1da177e4 LT |
1119 | if (!i2c_check_functionality(adapter, |
1120 | I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1121 | /* We need to be able to do byte I/O */ | |
1122 | goto ERROR0 ; | |
1123 | }; | |
1124 | ||
1125 | /* OK. For now, we presume we have a valid client. We now create the | |
1126 | client structure, even though we cannot fill it completely yet. | |
1127 | But it allows us to access lm85_{read,write}_value. */ | |
1128 | ||
ba9c2e8d | 1129 | if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) { |
1da177e4 LT |
1130 | err = -ENOMEM; |
1131 | goto ERROR0; | |
1132 | } | |
1da177e4 LT |
1133 | |
1134 | new_client = &data->client; | |
1135 | i2c_set_clientdata(new_client, data); | |
1136 | new_client->addr = address; | |
1137 | new_client->adapter = adapter; | |
1138 | new_client->driver = &lm85_driver; | |
1139 | new_client->flags = 0; | |
1140 | ||
1141 | /* Now, we do the remaining detection. */ | |
1142 | ||
1143 | company = lm85_read_value(new_client, LM85_REG_COMPANY); | |
1144 | verstep = lm85_read_value(new_client, LM85_REG_VERSTEP); | |
1145 | ||
1146 | dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" | |
1147 | " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1148 | i2c_adapter_id(new_client->adapter), new_client->addr, | |
1149 | company, verstep); | |
1150 | ||
1151 | /* If auto-detecting, Determine the chip type. */ | |
1152 | if (kind <= 0) { | |
1153 | dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n", | |
1154 | i2c_adapter_id(adapter), address ); | |
1155 | if( company == LM85_COMPANY_NATIONAL | |
1156 | && verstep == LM85_VERSTEP_LM85C ) { | |
1157 | kind = lm85c ; | |
1158 | } else if( company == LM85_COMPANY_NATIONAL | |
1159 | && verstep == LM85_VERSTEP_LM85B ) { | |
1160 | kind = lm85b ; | |
1161 | } else if( company == LM85_COMPANY_NATIONAL | |
1162 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1163 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1164 | " Defaulting to LM85.\n", verstep); | |
1165 | kind = any_chip ; | |
1166 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1167 | && verstep == LM85_VERSTEP_ADM1027 ) { | |
1168 | kind = adm1027 ; | |
1169 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1170 | && (verstep == LM85_VERSTEP_ADT7463 | |
1171 | || verstep == LM85_VERSTEP_ADT7463C) ) { | |
1172 | kind = adt7463 ; | |
1173 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1174 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1175 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1176 | " Defaulting to Generic LM85.\n", verstep ); | |
1177 | kind = any_chip ; | |
1178 | } else if( company == LM85_COMPANY_SMSC | |
1179 | && (verstep == LM85_VERSTEP_EMC6D100_A0 | |
1180 | || verstep == LM85_VERSTEP_EMC6D100_A1) ) { | |
1181 | /* Unfortunately, we can't tell a '100 from a '101 | |
1182 | * from the registers. Since a '101 is a '100 | |
1183 | * in a package with fewer pins and therefore no | |
1184 | * 3.3V, 1.5V or 1.8V inputs, perhaps if those | |
1185 | * inputs read 0, then it's a '101. | |
1186 | */ | |
1187 | kind = emc6d100 ; | |
1188 | } else if( company == LM85_COMPANY_SMSC | |
1189 | && verstep == LM85_VERSTEP_EMC6D102) { | |
1190 | kind = emc6d102 ; | |
1191 | } else if( company == LM85_COMPANY_SMSC | |
1192 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1193 | dev_err(&adapter->dev, "lm85: Detected SMSC chip\n"); | |
1194 | dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x" | |
1195 | " Defaulting to Generic LM85.\n", verstep ); | |
1196 | kind = any_chip ; | |
1197 | } else if( kind == any_chip | |
1198 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1199 | dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n"); | |
1200 | /* Leave kind as "any_chip" */ | |
1201 | } else { | |
1202 | dev_dbg(&adapter->dev, "Autodetection failed\n"); | |
1203 | /* Not an LM85 ... */ | |
1204 | if( kind == any_chip ) { /* User used force=x,y */ | |
1205 | dev_err(&adapter->dev, "Generic LM85 Version 6 not" | |
1206 | " found at %d,0x%02x. Try force_lm85c.\n", | |
1207 | i2c_adapter_id(adapter), address ); | |
1208 | } | |
1209 | err = 0 ; | |
1210 | goto ERROR1; | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | /* Fill in the chip specific driver values */ | |
1215 | if ( kind == any_chip ) { | |
1216 | type_name = "lm85"; | |
1217 | } else if ( kind == lm85b ) { | |
1218 | type_name = "lm85b"; | |
1219 | } else if ( kind == lm85c ) { | |
1220 | type_name = "lm85c"; | |
1221 | } else if ( kind == adm1027 ) { | |
1222 | type_name = "adm1027"; | |
1223 | } else if ( kind == adt7463 ) { | |
1224 | type_name = "adt7463"; | |
1225 | } else if ( kind == emc6d100){ | |
1226 | type_name = "emc6d100"; | |
1227 | } else if ( kind == emc6d102 ) { | |
1228 | type_name = "emc6d102"; | |
1229 | } | |
1230 | strlcpy(new_client->name, type_name, I2C_NAME_SIZE); | |
1231 | ||
1232 | /* Fill in the remaining client fields */ | |
1233 | data->type = kind; | |
1234 | data->valid = 0; | |
9a61bf63 | 1235 | mutex_init(&data->update_lock); |
1da177e4 LT |
1236 | |
1237 | /* Tell the I2C layer a new client has arrived */ | |
1238 | if ((err = i2c_attach_client(new_client))) | |
1239 | goto ERROR1; | |
1240 | ||
1241 | /* Set the VRM version */ | |
303760b4 | 1242 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1243 | |
1244 | /* Initialize the LM85 chip */ | |
1245 | lm85_init_client(new_client); | |
1246 | ||
1247 | /* Register sysfs hooks */ | |
0501a381 | 1248 | if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group))) |
943b0830 | 1249 | goto ERROR2; |
1da177e4 | 1250 | |
9c516ef4 JD |
1251 | /* The ADT7463 has an optional VRM 10 mode where pin 21 is used |
1252 | as a sixth digital VID input rather than an analog input. */ | |
1253 | data->vid = lm85_read_value(new_client, LM85_REG_VID); | |
0501a381 MH |
1254 | if (!(kind == adt7463 && (data->vid & 0x80))) |
1255 | if ((err = device_create_file(&new_client->dev, | |
1256 | &dev_attr_in4_input)) | |
1257 | || (err = device_create_file(&new_client->dev, | |
1258 | &dev_attr_in4_min)) | |
1259 | || (err = device_create_file(&new_client->dev, | |
1260 | &dev_attr_in4_max))) | |
1261 | goto ERROR3; | |
1262 | ||
1263 | data->class_dev = hwmon_device_register(&new_client->dev); | |
1264 | if (IS_ERR(data->class_dev)) { | |
1265 | err = PTR_ERR(data->class_dev); | |
1266 | goto ERROR3; | |
9c516ef4 JD |
1267 | } |
1268 | ||
1da177e4 LT |
1269 | return 0; |
1270 | ||
1271 | /* Error out and cleanup code */ | |
0501a381 MH |
1272 | ERROR3: |
1273 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group); | |
1274 | sysfs_remove_group(&new_client->dev.kobj, &lm85_group_opt); | |
943b0830 MH |
1275 | ERROR2: |
1276 | i2c_detach_client(new_client); | |
1da177e4 LT |
1277 | ERROR1: |
1278 | kfree(data); | |
1279 | ERROR0: | |
1280 | return err; | |
1281 | } | |
1282 | ||
d8d20615 | 1283 | static int lm85_detach_client(struct i2c_client *client) |
1da177e4 | 1284 | { |
943b0830 MH |
1285 | struct lm85_data *data = i2c_get_clientdata(client); |
1286 | hwmon_device_unregister(data->class_dev); | |
0501a381 MH |
1287 | sysfs_remove_group(&client->dev.kobj, &lm85_group); |
1288 | sysfs_remove_group(&client->dev.kobj, &lm85_group_opt); | |
1da177e4 | 1289 | i2c_detach_client(client); |
943b0830 | 1290 | kfree(data); |
1da177e4 LT |
1291 | return 0; |
1292 | } | |
1293 | ||
1294 | ||
d8d20615 | 1295 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1296 | { |
1297 | int res; | |
1298 | ||
1299 | /* What size location is it? */ | |
1300 | switch( reg ) { | |
1301 | case LM85_REG_FAN(0) : /* Read WORD data */ | |
1302 | case LM85_REG_FAN(1) : | |
1303 | case LM85_REG_FAN(2) : | |
1304 | case LM85_REG_FAN(3) : | |
1305 | case LM85_REG_FAN_MIN(0) : | |
1306 | case LM85_REG_FAN_MIN(1) : | |
1307 | case LM85_REG_FAN_MIN(2) : | |
1308 | case LM85_REG_FAN_MIN(3) : | |
1309 | case LM85_REG_ALARM1 : /* Read both bytes at once */ | |
1310 | res = i2c_smbus_read_byte_data(client, reg) & 0xff ; | |
1311 | res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ; | |
1312 | break ; | |
1313 | case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */ | |
1314 | res = i2c_smbus_read_byte_data(client, reg) << 8 ; | |
1315 | res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ; | |
1316 | break ; | |
1317 | default: /* Read BYTE data */ | |
1318 | res = i2c_smbus_read_byte_data(client, reg); | |
1319 | break ; | |
1320 | } | |
1321 | ||
1322 | return res ; | |
1323 | } | |
1324 | ||
d8d20615 | 1325 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 LT |
1326 | { |
1327 | int res ; | |
1328 | ||
1329 | switch( reg ) { | |
1330 | case LM85_REG_FAN(0) : /* Write WORD data */ | |
1331 | case LM85_REG_FAN(1) : | |
1332 | case LM85_REG_FAN(2) : | |
1333 | case LM85_REG_FAN(3) : | |
1334 | case LM85_REG_FAN_MIN(0) : | |
1335 | case LM85_REG_FAN_MIN(1) : | |
1336 | case LM85_REG_FAN_MIN(2) : | |
1337 | case LM85_REG_FAN_MIN(3) : | |
1338 | /* NOTE: ALARM is read only, so not included here */ | |
1339 | res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ; | |
1340 | res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ; | |
1341 | break ; | |
1342 | case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */ | |
1343 | res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff); | |
1344 | res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ; | |
1345 | break ; | |
1346 | default: /* Write BYTE data */ | |
1347 | res = i2c_smbus_write_byte_data(client, reg, value); | |
1348 | break ; | |
1349 | } | |
1350 | ||
1351 | return res ; | |
1352 | } | |
1353 | ||
d8d20615 | 1354 | static void lm85_init_client(struct i2c_client *client) |
1da177e4 LT |
1355 | { |
1356 | int value; | |
1357 | struct lm85_data *data = i2c_get_clientdata(client); | |
1358 | ||
1359 | dev_dbg(&client->dev, "Initializing device\n"); | |
1360 | ||
1361 | /* Warn if part was not "READY" */ | |
1362 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1363 | dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value); | |
1364 | if( value & 0x02 ) { | |
1365 | dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n", | |
1366 | i2c_adapter_id(client->adapter), client->addr ); | |
1367 | }; | |
1368 | if( ! (value & 0x04) ) { | |
1369 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", | |
1370 | i2c_adapter_id(client->adapter), client->addr ); | |
1371 | }; | |
1372 | if( value & 0x10 | |
1373 | && ( data->type == adm1027 | |
1374 | || data->type == adt7463 ) ) { | |
1375 | dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. " | |
1376 | "Please report this to the lm85 maintainer.\n", | |
1377 | i2c_adapter_id(client->adapter), client->addr ); | |
1378 | }; | |
1379 | ||
1380 | /* WE INTENTIONALLY make no changes to the limits, | |
1381 | * offsets, pwms, fans and zones. If they were | |
1382 | * configured, we don't want to mess with them. | |
1383 | * If they weren't, the default is 100% PWM, no | |
1384 | * control and will suffice until 'sensors -s' | |
1385 | * can be run by the user. | |
1386 | */ | |
1387 | ||
1388 | /* Start monitoring */ | |
1389 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1390 | /* Try to clear LOCK, Set START, save everything else */ | |
1391 | value = (value & ~ 0x02) | 0x01 ; | |
1392 | dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); | |
1393 | lm85_write_value(client, LM85_REG_CONFIG, value); | |
1394 | } | |
1395 | ||
1396 | static struct lm85_data *lm85_update_device(struct device *dev) | |
1397 | { | |
1398 | struct i2c_client *client = to_i2c_client(dev); | |
1399 | struct lm85_data *data = i2c_get_clientdata(client); | |
1400 | int i; | |
1401 | ||
9a61bf63 | 1402 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1403 | |
1404 | if ( !data->valid || | |
1405 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) { | |
1406 | /* Things that change quickly */ | |
1407 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1408 | ||
1409 | /* Have to read extended bits first to "freeze" the | |
1410 | * more significant bits that are read later. | |
1411 | */ | |
1412 | if ( (data->type == adm1027) || (data->type == adt7463) ) { | |
1413 | int ext1 = lm85_read_value(client, | |
1414 | ADM1027_REG_EXTEND_ADC1); | |
1415 | int ext2 = lm85_read_value(client, | |
1416 | ADM1027_REG_EXTEND_ADC2); | |
1417 | int val = (ext1 << 8) + ext2; | |
1418 | ||
1419 | for(i = 0; i <= 4; i++) | |
1420 | data->in_ext[i] = (val>>(i * 2))&0x03; | |
1421 | ||
1422 | for(i = 0; i <= 2; i++) | |
1423 | data->temp_ext[i] = (val>>((i + 5) * 2))&0x03; | |
1424 | } | |
1425 | ||
1426 | /* adc_scale is 2^(number of LSBs). There are 4 extra bits in | |
1427 | the emc6d102 and 2 in the adt7463 and adm1027. In all | |
1428 | other chips ext is always 0 and the value of scale is | |
1429 | irrelevant. So it is left in 4*/ | |
1430 | data->adc_scale = (data->type == emc6d102 ) ? 16 : 4; | |
1431 | ||
9c516ef4 JD |
1432 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1433 | ||
1434 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1435 | data->in[i] = |
1436 | lm85_read_value(client, LM85_REG_IN(i)); | |
1437 | } | |
1438 | ||
9c516ef4 JD |
1439 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1440 | data->in[4] = lm85_read_value(client, | |
1441 | LM85_REG_IN(4)); | |
1442 | } | |
1443 | ||
1da177e4 LT |
1444 | for (i = 0; i <= 3; ++i) { |
1445 | data->fan[i] = | |
1446 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1447 | } | |
1448 | ||
1449 | for (i = 0; i <= 2; ++i) { | |
1450 | data->temp[i] = | |
1451 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1452 | } | |
1453 | ||
1454 | for (i = 0; i <= 2; ++i) { | |
1455 | data->pwm[i] = | |
1456 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1457 | } | |
1458 | ||
1459 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1460 | ||
1461 | if ( data->type == adt7463 ) { | |
1462 | if( data->therm_total < ULONG_MAX - 256 ) { | |
1463 | data->therm_total += | |
1464 | lm85_read_value(client, ADT7463_REG_THERM ); | |
1465 | } | |
1466 | } else if ( data->type == emc6d100 ) { | |
1467 | /* Three more voltage sensors */ | |
1468 | for (i = 5; i <= 7; ++i) { | |
1469 | data->in[i] = | |
1470 | lm85_read_value(client, EMC6D100_REG_IN(i)); | |
1471 | } | |
1472 | /* More alarm bits */ | |
1473 | data->alarms |= | |
1474 | lm85_read_value(client, EMC6D100_REG_ALARM3) << 16; | |
1475 | } else if (data->type == emc6d102 ) { | |
1476 | /* Have to read LSB bits after the MSB ones because | |
1477 | the reading of the MSB bits has frozen the | |
1478 | LSBs (backward from the ADM1027). | |
1479 | */ | |
1480 | int ext1 = lm85_read_value(client, | |
1481 | EMC6D102_REG_EXTEND_ADC1); | |
1482 | int ext2 = lm85_read_value(client, | |
1483 | EMC6D102_REG_EXTEND_ADC2); | |
1484 | int ext3 = lm85_read_value(client, | |
1485 | EMC6D102_REG_EXTEND_ADC3); | |
1486 | int ext4 = lm85_read_value(client, | |
1487 | EMC6D102_REG_EXTEND_ADC4); | |
1488 | data->in_ext[0] = ext3 & 0x0f; | |
1489 | data->in_ext[1] = ext4 & 0x0f; | |
1490 | data->in_ext[2] = (ext4 >> 4) & 0x0f; | |
1491 | data->in_ext[3] = (ext3 >> 4) & 0x0f; | |
1492 | data->in_ext[4] = (ext2 >> 4) & 0x0f; | |
1493 | ||
1494 | data->temp_ext[0] = ext1 & 0x0f; | |
1495 | data->temp_ext[1] = ext2 & 0x0f; | |
1496 | data->temp_ext[2] = (ext1 >> 4) & 0x0f; | |
1497 | } | |
1498 | ||
1499 | data->last_reading = jiffies ; | |
1500 | }; /* last_reading */ | |
1501 | ||
1502 | if ( !data->valid || | |
1503 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) { | |
1504 | /* Things that don't change often */ | |
1505 | dev_dbg(&client->dev, "Reading config values\n"); | |
1506 | ||
9c516ef4 | 1507 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1508 | data->in_min[i] = |
1509 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1510 | data->in_max[i] = | |
1511 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
1512 | } | |
1513 | ||
9c516ef4 JD |
1514 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1515 | data->in_min[4] = lm85_read_value(client, | |
1516 | LM85_REG_IN_MIN(4)); | |
1517 | data->in_max[4] = lm85_read_value(client, | |
1518 | LM85_REG_IN_MAX(4)); | |
1519 | } | |
1520 | ||
1da177e4 LT |
1521 | if ( data->type == emc6d100 ) { |
1522 | for (i = 5; i <= 7; ++i) { | |
1523 | data->in_min[i] = | |
1524 | lm85_read_value(client, EMC6D100_REG_IN_MIN(i)); | |
1525 | data->in_max[i] = | |
1526 | lm85_read_value(client, EMC6D100_REG_IN_MAX(i)); | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | for (i = 0; i <= 3; ++i) { | |
1531 | data->fan_min[i] = | |
1532 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1533 | } | |
1534 | ||
1535 | for (i = 0; i <= 2; ++i) { | |
1536 | data->temp_min[i] = | |
1537 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1538 | data->temp_max[i] = | |
1539 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1540 | } | |
1541 | ||
1da177e4 LT |
1542 | for (i = 0; i <= 2; ++i) { |
1543 | int val ; | |
1544 | data->autofan[i].config = | |
1545 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1546 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
1547 | data->autofan[i].freq = val & 0x07 ; | |
1548 | data->zone[i].range = (val >> 4) & 0x0f ; | |
1549 | data->autofan[i].min_pwm = | |
1550 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1551 | data->zone[i].limit = | |
1552 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1553 | data->zone[i].critical = | |
1554 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1555 | } | |
1556 | ||
1557 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1558 | data->smooth[0] = i & 0x0f ; | |
1559 | data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */ | |
1560 | data->autofan[0].min_off = (i & 0x20) != 0 ; | |
1561 | data->autofan[1].min_off = (i & 0x40) != 0 ; | |
1562 | data->autofan[2].min_off = (i & 0x80) != 0 ; | |
1563 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2); | |
1564 | data->smooth[1] = (i>>4) & 0x0f ; | |
1565 | data->smooth[2] = i & 0x0f ; | |
1566 | ||
1567 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
1568 | data->zone[0].hyst = (i>>4) & 0x0f ; | |
1569 | data->zone[1].hyst = i & 0x0f ; | |
1570 | ||
1571 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
1572 | data->zone[2].hyst = (i>>4) & 0x0f ; | |
1573 | ||
1574 | if ( (data->type == lm85b) || (data->type == lm85c) ) { | |
1575 | data->tach_mode = lm85_read_value(client, | |
1576 | LM85_REG_TACH_MODE ); | |
1577 | data->spinup_ctl = lm85_read_value(client, | |
1578 | LM85_REG_SPINUP_CTL ); | |
1579 | } else if ( (data->type == adt7463) || (data->type == adm1027) ) { | |
1580 | if ( data->type == adt7463 ) { | |
1581 | for (i = 0; i <= 2; ++i) { | |
1582 | data->oppoint[i] = lm85_read_value(client, | |
1583 | ADT7463_REG_OPPOINT(i) ); | |
1584 | } | |
1585 | data->tmin_ctl = lm85_read_value(client, | |
1586 | ADT7463_REG_TMIN_CTL1 ); | |
1587 | data->therm_limit = lm85_read_value(client, | |
1588 | ADT7463_REG_THERM_LIMIT ); | |
1589 | } | |
1590 | for (i = 0; i <= 2; ++i) { | |
1591 | data->temp_offset[i] = lm85_read_value(client, | |
1592 | ADM1027_REG_TEMP_OFFSET(i) ); | |
1593 | } | |
1594 | data->tach_mode = lm85_read_value(client, | |
1595 | ADM1027_REG_CONFIG3 ); | |
1596 | data->fan_ppr = lm85_read_value(client, | |
1597 | ADM1027_REG_FAN_PPR ); | |
1598 | } | |
1599 | ||
1600 | data->last_config = jiffies; | |
1601 | }; /* last_config */ | |
1602 | ||
1603 | data->valid = 1; | |
1604 | ||
9a61bf63 | 1605 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1606 | |
1607 | return data; | |
1608 | } | |
1609 | ||
1610 | ||
1611 | static int __init sm_lm85_init(void) | |
1612 | { | |
1613 | return i2c_add_driver(&lm85_driver); | |
1614 | } | |
1615 | ||
1616 | static void __exit sm_lm85_exit(void) | |
1617 | { | |
1618 | i2c_del_driver(&lm85_driver); | |
1619 | } | |
1620 | ||
1621 | /* Thanks to Richard Barrington for adding the LM85 to sensors-detect. | |
1622 | * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with | |
1623 | * post 2.7.0 CVS changes. | |
1624 | */ | |
1625 | MODULE_LICENSE("GPL"); | |
1626 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com"); | |
1627 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); | |
1628 | ||
1629 | module_init(sm_lm85_init); | |
1630 | module_exit(sm_lm85_exit); |