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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; |
9a61bf63 | 335 | struct mutex lock; |
1da177e4 LT |
336 | enum chips type; |
337 | ||
9a61bf63 | 338 | struct mutex update_lock; |
1da177e4 LT |
339 | int valid; /* !=0 if following fields are valid */ |
340 | unsigned long last_reading; /* In jiffies */ | |
341 | unsigned long last_config; /* In jiffies */ | |
342 | ||
343 | u8 in[8]; /* Register value */ | |
344 | u8 in_max[8]; /* Register value */ | |
345 | u8 in_min[8]; /* Register value */ | |
346 | s8 temp[3]; /* Register value */ | |
347 | s8 temp_min[3]; /* Register value */ | |
348 | s8 temp_max[3]; /* Register value */ | |
349 | s8 temp_offset[3]; /* Register value */ | |
350 | u16 fan[4]; /* Register value */ | |
351 | u16 fan_min[4]; /* Register value */ | |
352 | u8 pwm[3]; /* Register value */ | |
353 | u8 spinup_ctl; /* Register encoding, combined */ | |
354 | u8 tach_mode; /* Register encoding, combined */ | |
355 | u8 temp_ext[3]; /* Decoded values */ | |
356 | u8 in_ext[8]; /* Decoded values */ | |
357 | u8 adc_scale; /* ADC Extended bits scaling factor */ | |
358 | u8 fan_ppr; /* Register value */ | |
359 | u8 smooth[3]; /* Register encoding */ | |
360 | u8 vid; /* Register value */ | |
361 | u8 vrm; /* VRM version */ | |
362 | u8 syncpwm3; /* Saved PWM3 for TACH 2,3,4 config */ | |
363 | u8 oppoint[3]; /* Register value */ | |
364 | u16 tmin_ctl; /* Register value */ | |
365 | unsigned long therm_total; /* Cummulative therm count */ | |
366 | u8 therm_limit; /* Register value */ | |
367 | u32 alarms; /* Register encoding, combined */ | |
368 | struct lm85_autofan autofan[3]; | |
369 | struct lm85_zone zone[3]; | |
370 | }; | |
371 | ||
372 | static int lm85_attach_adapter(struct i2c_adapter *adapter); | |
373 | static int lm85_detect(struct i2c_adapter *adapter, int address, | |
374 | int kind); | |
375 | static int lm85_detach_client(struct i2c_client *client); | |
376 | ||
f6c27fc1 DJ |
377 | static int lm85_read_value(struct i2c_client *client, u8 reg); |
378 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value); | |
1da177e4 LT |
379 | static struct lm85_data *lm85_update_device(struct device *dev); |
380 | static void lm85_init_client(struct i2c_client *client); | |
381 | ||
382 | ||
383 | static struct i2c_driver lm85_driver = { | |
cdaf7934 | 384 | .driver = { |
cdaf7934 LR |
385 | .name = "lm85", |
386 | }, | |
1da177e4 | 387 | .id = I2C_DRIVERID_LM85, |
1da177e4 LT |
388 | .attach_adapter = lm85_attach_adapter, |
389 | .detach_client = lm85_detach_client, | |
390 | }; | |
391 | ||
392 | ||
393 | /* 4 Fans */ | |
394 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
395 | { | |
396 | struct lm85_data *data = lm85_update_device(dev); | |
397 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) ); | |
398 | } | |
399 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
400 | { | |
401 | struct lm85_data *data = lm85_update_device(dev); | |
402 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) ); | |
403 | } | |
404 | static ssize_t set_fan_min(struct device *dev, const char *buf, | |
405 | size_t count, int nr) | |
406 | { | |
407 | struct i2c_client *client = to_i2c_client(dev); | |
408 | struct lm85_data *data = i2c_get_clientdata(client); | |
409 | long val = simple_strtol(buf, NULL, 10); | |
410 | ||
9a61bf63 | 411 | mutex_lock(&data->update_lock); |
1da177e4 LT |
412 | data->fan_min[nr] = FAN_TO_REG(val); |
413 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 414 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
415 | return count; |
416 | } | |
417 | ||
418 | #define show_fan_offset(offset) \ | |
8627f9ba | 419 | static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
420 | { \ |
421 | return show_fan(dev, buf, offset - 1); \ | |
422 | } \ | |
8627f9ba | 423 | static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
424 | { \ |
425 | return show_fan_min(dev, buf, offset - 1); \ | |
426 | } \ | |
8627f9ba | 427 | static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
428 | const char *buf, size_t count) \ |
429 | { \ | |
430 | return set_fan_min(dev, buf, count, offset - 1); \ | |
431 | } \ | |
432 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \ | |
433 | NULL); \ | |
434 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
435 | show_fan_##offset##_min, set_fan_##offset##_min); | |
436 | ||
437 | show_fan_offset(1); | |
438 | show_fan_offset(2); | |
439 | show_fan_offset(3); | |
440 | show_fan_offset(4); | |
441 | ||
442 | /* vid, vrm, alarms */ | |
443 | ||
8627f9ba | 444 | static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
445 | { |
446 | struct lm85_data *data = lm85_update_device(dev); | |
9c516ef4 JD |
447 | int vid; |
448 | ||
449 | if (data->type == adt7463 && (data->vid & 0x80)) { | |
450 | /* 6-pin VID (VRM 10) */ | |
451 | vid = vid_from_reg(data->vid & 0x3f, data->vrm); | |
452 | } else { | |
453 | /* 5-pin VID (VRM 9) */ | |
454 | vid = vid_from_reg(data->vid & 0x1f, data->vrm); | |
455 | } | |
456 | ||
457 | return sprintf(buf, "%d\n", vid); | |
1da177e4 LT |
458 | } |
459 | ||
460 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
461 | ||
8627f9ba | 462 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
463 | { |
464 | struct lm85_data *data = lm85_update_device(dev); | |
465 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
466 | } | |
467 | ||
8627f9ba | 468 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
469 | { |
470 | struct i2c_client *client = to_i2c_client(dev); | |
471 | struct lm85_data *data = i2c_get_clientdata(client); | |
472 | u32 val; | |
473 | ||
474 | val = simple_strtoul(buf, NULL, 10); | |
475 | data->vrm = val; | |
476 | return count; | |
477 | } | |
478 | ||
479 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
480 | ||
8627f9ba | 481 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
482 | { |
483 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 484 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
485 | } |
486 | ||
487 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
488 | ||
489 | /* pwm */ | |
490 | ||
491 | static ssize_t show_pwm(struct device *dev, char *buf, int nr) | |
492 | { | |
493 | struct lm85_data *data = lm85_update_device(dev); | |
494 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) ); | |
495 | } | |
496 | static ssize_t set_pwm(struct device *dev, const char *buf, | |
497 | size_t count, int nr) | |
498 | { | |
499 | struct i2c_client *client = to_i2c_client(dev); | |
500 | struct lm85_data *data = i2c_get_clientdata(client); | |
501 | long val = simple_strtol(buf, NULL, 10); | |
502 | ||
9a61bf63 | 503 | mutex_lock(&data->update_lock); |
1da177e4 LT |
504 | data->pwm[nr] = PWM_TO_REG(val); |
505 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
9a61bf63 | 506 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
507 | return count; |
508 | } | |
509 | static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr) | |
510 | { | |
511 | struct lm85_data *data = lm85_update_device(dev); | |
512 | int pwm_zone; | |
513 | ||
514 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
515 | return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) ); | |
516 | } | |
517 | ||
518 | #define show_pwm_reg(offset) \ | |
8627f9ba | 519 | static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
520 | { \ |
521 | return show_pwm(dev, buf, offset - 1); \ | |
522 | } \ | |
8627f9ba | 523 | static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
524 | const char *buf, size_t count) \ |
525 | { \ | |
526 | return set_pwm(dev, buf, count, offset - 1); \ | |
527 | } \ | |
8627f9ba | 528 | static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
529 | { \ |
530 | return show_pwm_enable(dev, buf, offset - 1); \ | |
531 | } \ | |
532 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
533 | show_pwm_##offset, set_pwm_##offset); \ | |
534 | static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, \ | |
535 | show_pwm_enable##offset, NULL); | |
536 | ||
537 | show_pwm_reg(1); | |
538 | show_pwm_reg(2); | |
539 | show_pwm_reg(3); | |
540 | ||
541 | /* Voltages */ | |
542 | ||
543 | static ssize_t show_in(struct device *dev, char *buf, int nr) | |
544 | { | |
545 | struct lm85_data *data = lm85_update_device(dev); | |
546 | return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr, | |
547 | data->in[nr], | |
548 | data->in_ext[nr], | |
549 | data->adc_scale) ); | |
550 | } | |
551 | static ssize_t show_in_min(struct device *dev, char *buf, int nr) | |
552 | { | |
553 | struct lm85_data *data = lm85_update_device(dev); | |
554 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) ); | |
555 | } | |
556 | static ssize_t set_in_min(struct device *dev, const char *buf, | |
557 | size_t count, int nr) | |
558 | { | |
559 | struct i2c_client *client = to_i2c_client(dev); | |
560 | struct lm85_data *data = i2c_get_clientdata(client); | |
561 | long val = simple_strtol(buf, NULL, 10); | |
562 | ||
9a61bf63 | 563 | mutex_lock(&data->update_lock); |
1da177e4 LT |
564 | data->in_min[nr] = INS_TO_REG(nr, val); |
565 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
9a61bf63 | 566 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
567 | return count; |
568 | } | |
569 | static ssize_t show_in_max(struct device *dev, char *buf, int nr) | |
570 | { | |
571 | struct lm85_data *data = lm85_update_device(dev); | |
572 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) ); | |
573 | } | |
574 | static ssize_t set_in_max(struct device *dev, const char *buf, | |
575 | size_t count, int nr) | |
576 | { | |
577 | struct i2c_client *client = to_i2c_client(dev); | |
578 | struct lm85_data *data = i2c_get_clientdata(client); | |
579 | long val = simple_strtol(buf, NULL, 10); | |
580 | ||
9a61bf63 | 581 | mutex_lock(&data->update_lock); |
1da177e4 LT |
582 | data->in_max[nr] = INS_TO_REG(nr, val); |
583 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
9a61bf63 | 584 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
585 | return count; |
586 | } | |
587 | #define show_in_reg(offset) \ | |
8627f9ba | 588 | static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
589 | { \ |
590 | return show_in(dev, buf, offset); \ | |
591 | } \ | |
8627f9ba | 592 | static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
593 | { \ |
594 | return show_in_min(dev, buf, offset); \ | |
595 | } \ | |
8627f9ba | 596 | static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
597 | { \ |
598 | return show_in_max(dev, buf, offset); \ | |
599 | } \ | |
8627f9ba | 600 | static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
601 | const char *buf, size_t count) \ |
602 | { \ | |
603 | return set_in_min(dev, buf, count, offset); \ | |
604 | } \ | |
8627f9ba | 605 | static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
606 | const char *buf, size_t count) \ |
607 | { \ | |
608 | return set_in_max(dev, buf, count, offset); \ | |
609 | } \ | |
610 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, \ | |
611 | NULL); \ | |
612 | static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
613 | show_in_##offset##_min, set_in_##offset##_min); \ | |
614 | static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
615 | show_in_##offset##_max, set_in_##offset##_max); | |
616 | ||
617 | show_in_reg(0); | |
618 | show_in_reg(1); | |
619 | show_in_reg(2); | |
620 | show_in_reg(3); | |
621 | show_in_reg(4); | |
622 | ||
623 | /* Temps */ | |
624 | ||
625 | static ssize_t show_temp(struct device *dev, char *buf, int nr) | |
626 | { | |
627 | struct lm85_data *data = lm85_update_device(dev); | |
628 | return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr], | |
629 | data->temp_ext[nr], | |
630 | data->adc_scale) ); | |
631 | } | |
632 | static ssize_t show_temp_min(struct device *dev, char *buf, int nr) | |
633 | { | |
634 | struct lm85_data *data = lm85_update_device(dev); | |
635 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) ); | |
636 | } | |
637 | static ssize_t set_temp_min(struct device *dev, const char *buf, | |
638 | size_t count, int nr) | |
639 | { | |
640 | struct i2c_client *client = to_i2c_client(dev); | |
641 | struct lm85_data *data = i2c_get_clientdata(client); | |
642 | long val = simple_strtol(buf, NULL, 10); | |
643 | ||
9a61bf63 | 644 | mutex_lock(&data->update_lock); |
1da177e4 LT |
645 | data->temp_min[nr] = TEMP_TO_REG(val); |
646 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
9a61bf63 | 647 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
648 | return count; |
649 | } | |
650 | static ssize_t show_temp_max(struct device *dev, char *buf, int nr) | |
651 | { | |
652 | struct lm85_data *data = lm85_update_device(dev); | |
653 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) ); | |
654 | } | |
655 | static ssize_t set_temp_max(struct device *dev, const char *buf, | |
656 | size_t count, int nr) | |
657 | { | |
658 | struct i2c_client *client = to_i2c_client(dev); | |
659 | struct lm85_data *data = i2c_get_clientdata(client); | |
660 | long val = simple_strtol(buf, NULL, 10); | |
661 | ||
9a61bf63 | 662 | mutex_lock(&data->update_lock); |
1da177e4 LT |
663 | data->temp_max[nr] = TEMP_TO_REG(val); |
664 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
9a61bf63 | 665 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
666 | return count; |
667 | } | |
668 | #define show_temp_reg(offset) \ | |
8627f9ba | 669 | static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
670 | { \ |
671 | return show_temp(dev, buf, offset - 1); \ | |
672 | } \ | |
8627f9ba | 673 | static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
674 | { \ |
675 | return show_temp_min(dev, buf, offset - 1); \ | |
676 | } \ | |
8627f9ba | 677 | static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
678 | { \ |
679 | return show_temp_max(dev, buf, offset - 1); \ | |
680 | } \ | |
8627f9ba | 681 | static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
682 | const char *buf, size_t count) \ |
683 | { \ | |
684 | return set_temp_min(dev, buf, count, offset - 1); \ | |
685 | } \ | |
8627f9ba | 686 | static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
687 | const char *buf, size_t count) \ |
688 | { \ | |
689 | return set_temp_max(dev, buf, count, offset - 1); \ | |
690 | } \ | |
691 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \ | |
692 | NULL); \ | |
693 | static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
694 | show_temp_##offset##_min, set_temp_##offset##_min); \ | |
695 | static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
696 | show_temp_##offset##_max, set_temp_##offset##_max); | |
697 | ||
698 | show_temp_reg(1); | |
699 | show_temp_reg(2); | |
700 | show_temp_reg(3); | |
701 | ||
702 | ||
703 | /* Automatic PWM control */ | |
704 | ||
705 | static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr) | |
706 | { | |
707 | struct lm85_data *data = lm85_update_device(dev); | |
708 | return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config)); | |
709 | } | |
710 | static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf, | |
711 | size_t count, int nr) | |
712 | { | |
713 | struct i2c_client *client = to_i2c_client(dev); | |
714 | struct lm85_data *data = i2c_get_clientdata(client); | |
715 | long val = simple_strtol(buf, NULL, 10); | |
716 | ||
9a61bf63 | 717 | mutex_lock(&data->update_lock); |
1da177e4 LT |
718 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
719 | | ZONE_TO_REG(val) ; | |
720 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
721 | data->autofan[nr].config); | |
9a61bf63 | 722 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
723 | return count; |
724 | } | |
725 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr) | |
726 | { | |
727 | struct lm85_data *data = lm85_update_device(dev); | |
728 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); | |
729 | } | |
730 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf, | |
731 | size_t count, int nr) | |
732 | { | |
733 | struct i2c_client *client = to_i2c_client(dev); | |
734 | struct lm85_data *data = i2c_get_clientdata(client); | |
735 | long val = simple_strtol(buf, NULL, 10); | |
736 | ||
9a61bf63 | 737 | mutex_lock(&data->update_lock); |
1da177e4 LT |
738 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
739 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
740 | data->autofan[nr].min_pwm); | |
9a61bf63 | 741 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
742 | return count; |
743 | } | |
744 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr) | |
745 | { | |
746 | struct lm85_data *data = lm85_update_device(dev); | |
747 | return sprintf(buf,"%d\n", data->autofan[nr].min_off); | |
748 | } | |
749 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf, | |
750 | size_t count, int nr) | |
751 | { | |
752 | struct i2c_client *client = to_i2c_client(dev); | |
753 | struct lm85_data *data = i2c_get_clientdata(client); | |
754 | long val = simple_strtol(buf, NULL, 10); | |
755 | ||
9a61bf63 | 756 | mutex_lock(&data->update_lock); |
1da177e4 LT |
757 | data->autofan[nr].min_off = val; |
758 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0] | |
759 | | data->syncpwm3 | |
760 | | (data->autofan[0].min_off ? 0x20 : 0) | |
761 | | (data->autofan[1].min_off ? 0x40 : 0) | |
762 | | (data->autofan[2].min_off ? 0x80 : 0) | |
763 | ); | |
9a61bf63 | 764 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
765 | return count; |
766 | } | |
767 | static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr) | |
768 | { | |
769 | struct lm85_data *data = lm85_update_device(dev); | |
770 | return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq)); | |
771 | } | |
772 | static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf, | |
773 | size_t count, int nr) | |
774 | { | |
775 | struct i2c_client *client = to_i2c_client(dev); | |
776 | struct lm85_data *data = i2c_get_clientdata(client); | |
777 | long val = simple_strtol(buf, NULL, 10); | |
778 | ||
9a61bf63 | 779 | mutex_lock(&data->update_lock); |
1da177e4 LT |
780 | data->autofan[nr].freq = FREQ_TO_REG(val); |
781 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
782 | (data->zone[nr].range << 4) | |
783 | | data->autofan[nr].freq | |
784 | ); | |
9a61bf63 | 785 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
786 | return count; |
787 | } | |
788 | #define pwm_auto(offset) \ | |
8627f9ba | 789 | static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
790 | char *buf) \ |
791 | { \ | |
792 | return show_pwm_auto_channels(dev, buf, offset - 1); \ | |
793 | } \ | |
8627f9ba | 794 | static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
795 | const char *buf, size_t count) \ |
796 | { \ | |
797 | return set_pwm_auto_channels(dev, buf, count, offset - 1); \ | |
798 | } \ | |
8627f9ba | 799 | static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
800 | char *buf) \ |
801 | { \ | |
802 | return show_pwm_auto_pwm_min(dev, buf, offset - 1); \ | |
803 | } \ | |
8627f9ba | 804 | static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
805 | const char *buf, size_t count) \ |
806 | { \ | |
807 | return set_pwm_auto_pwm_min(dev, buf, count, offset - 1); \ | |
808 | } \ | |
8627f9ba | 809 | static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
810 | char *buf) \ |
811 | { \ | |
812 | return show_pwm_auto_pwm_minctl(dev, buf, offset - 1); \ | |
813 | } \ | |
8627f9ba | 814 | static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
815 | const char *buf, size_t count) \ |
816 | { \ | |
817 | return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1); \ | |
818 | } \ | |
8627f9ba | 819 | static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
820 | char *buf) \ |
821 | { \ | |
822 | return show_pwm_auto_pwm_freq(dev, buf, offset - 1); \ | |
823 | } \ | |
8627f9ba | 824 | static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
825 | const char *buf, size_t count) \ |
826 | { \ | |
827 | return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1); \ | |
828 | } \ | |
829 | static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR, \ | |
830 | show_pwm##offset##_auto_channels, \ | |
831 | set_pwm##offset##_auto_channels); \ | |
832 | static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR, \ | |
833 | show_pwm##offset##_auto_pwm_min, \ | |
834 | set_pwm##offset##_auto_pwm_min); \ | |
835 | static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR, \ | |
836 | show_pwm##offset##_auto_pwm_minctl, \ | |
837 | set_pwm##offset##_auto_pwm_minctl); \ | |
838 | static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR, \ | |
839 | show_pwm##offset##_auto_pwm_freq, \ | |
840 | set_pwm##offset##_auto_pwm_freq); | |
841 | pwm_auto(1); | |
842 | pwm_auto(2); | |
843 | pwm_auto(3); | |
844 | ||
845 | /* Temperature settings for automatic PWM control */ | |
846 | ||
847 | static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr) | |
848 | { | |
849 | struct lm85_data *data = lm85_update_device(dev); | |
850 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) - | |
851 | HYST_FROM_REG(data->zone[nr].hyst)); | |
852 | } | |
853 | static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf, | |
854 | size_t count, int nr) | |
855 | { | |
856 | struct i2c_client *client = to_i2c_client(dev); | |
857 | struct lm85_data *data = i2c_get_clientdata(client); | |
858 | int min; | |
859 | long val = simple_strtol(buf, NULL, 10); | |
860 | ||
9a61bf63 | 861 | mutex_lock(&data->update_lock); |
1da177e4 LT |
862 | min = TEMP_FROM_REG(data->zone[nr].limit); |
863 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
864 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
865 | if ( nr == 0 || nr == 1 ) { | |
866 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
867 | (data->zone[0].hyst << 4) | |
868 | | data->zone[1].hyst | |
869 | ); | |
870 | } else { | |
871 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
872 | (data->zone[2].hyst << 4) | |
873 | ); | |
874 | } | |
9a61bf63 | 875 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
876 | return count; |
877 | } | |
878 | static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr) | |
879 | { | |
880 | struct lm85_data *data = lm85_update_device(dev); | |
881 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) ); | |
882 | } | |
883 | static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf, | |
884 | size_t count, int nr) | |
885 | { | |
886 | struct i2c_client *client = to_i2c_client(dev); | |
887 | struct lm85_data *data = i2c_get_clientdata(client); | |
888 | long val = simple_strtol(buf, NULL, 10); | |
889 | ||
9a61bf63 | 890 | mutex_lock(&data->update_lock); |
1da177e4 LT |
891 | data->zone[nr].limit = TEMP_TO_REG(val); |
892 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
893 | data->zone[nr].limit); | |
894 | ||
895 | /* Update temp_auto_max and temp_auto_range */ | |
896 | data->zone[nr].range = RANGE_TO_REG( | |
897 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
898 | TEMP_FROM_REG(data->zone[nr].limit)); | |
899 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
900 | ((data->zone[nr].range & 0x0f) << 4) | |
901 | | (data->autofan[nr].freq & 0x07)); | |
902 | ||
903 | /* Update temp_auto_hyst and temp_auto_off */ | |
904 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
905 | data->zone[nr].limit) - TEMP_FROM_REG( | |
906 | data->zone[nr].off_desired)); | |
907 | if ( nr == 0 || nr == 1 ) { | |
908 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
909 | (data->zone[0].hyst << 4) | |
910 | | data->zone[1].hyst | |
911 | ); | |
912 | } else { | |
913 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
914 | (data->zone[2].hyst << 4) | |
915 | ); | |
916 | } | |
9a61bf63 | 917 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
918 | return count; |
919 | } | |
920 | static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr) | |
921 | { | |
922 | struct lm85_data *data = lm85_update_device(dev); | |
923 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) + | |
924 | RANGE_FROM_REG(data->zone[nr].range)); | |
925 | } | |
926 | static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf, | |
927 | size_t count, int nr) | |
928 | { | |
929 | struct i2c_client *client = to_i2c_client(dev); | |
930 | struct lm85_data *data = i2c_get_clientdata(client); | |
931 | int min; | |
932 | long val = simple_strtol(buf, NULL, 10); | |
933 | ||
9a61bf63 | 934 | mutex_lock(&data->update_lock); |
1da177e4 LT |
935 | min = TEMP_FROM_REG(data->zone[nr].limit); |
936 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
937 | data->zone[nr].range = RANGE_TO_REG( | |
938 | val - min); | |
939 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
940 | ((data->zone[nr].range & 0x0f) << 4) | |
941 | | (data->autofan[nr].freq & 0x07)); | |
9a61bf63 | 942 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
943 | return count; |
944 | } | |
945 | static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr) | |
946 | { | |
947 | struct lm85_data *data = lm85_update_device(dev); | |
948 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical)); | |
949 | } | |
950 | static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf, | |
951 | size_t count, int nr) | |
952 | { | |
953 | struct i2c_client *client = to_i2c_client(dev); | |
954 | struct lm85_data *data = i2c_get_clientdata(client); | |
955 | long val = simple_strtol(buf, NULL, 10); | |
956 | ||
9a61bf63 | 957 | mutex_lock(&data->update_lock); |
1da177e4 LT |
958 | data->zone[nr].critical = TEMP_TO_REG(val); |
959 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
960 | data->zone[nr].critical); | |
9a61bf63 | 961 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
962 | return count; |
963 | } | |
964 | #define temp_auto(offset) \ | |
8627f9ba | 965 | static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
966 | char *buf) \ |
967 | { \ | |
968 | return show_temp_auto_temp_off(dev, buf, offset - 1); \ | |
969 | } \ | |
8627f9ba | 970 | static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
971 | const char *buf, size_t count) \ |
972 | { \ | |
973 | return set_temp_auto_temp_off(dev, buf, count, offset - 1); \ | |
974 | } \ | |
8627f9ba | 975 | static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
976 | char *buf) \ |
977 | { \ | |
978 | return show_temp_auto_temp_min(dev, buf, offset - 1); \ | |
979 | } \ | |
8627f9ba | 980 | static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
981 | const char *buf, size_t count) \ |
982 | { \ | |
983 | return set_temp_auto_temp_min(dev, buf, count, offset - 1); \ | |
984 | } \ | |
8627f9ba | 985 | static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
986 | char *buf) \ |
987 | { \ | |
988 | return show_temp_auto_temp_max(dev, buf, offset - 1); \ | |
989 | } \ | |
8627f9ba | 990 | static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
991 | const char *buf, size_t count) \ |
992 | { \ | |
993 | return set_temp_auto_temp_max(dev, buf, count, offset - 1); \ | |
994 | } \ | |
8627f9ba | 995 | static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
996 | char *buf) \ |
997 | { \ | |
998 | return show_temp_auto_temp_crit(dev, buf, offset - 1); \ | |
999 | } \ | |
8627f9ba | 1000 | static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
1001 | const char *buf, size_t count) \ |
1002 | { \ | |
1003 | return set_temp_auto_temp_crit(dev, buf, count, offset - 1); \ | |
1004 | } \ | |
1005 | static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR, \ | |
1006 | show_temp##offset##_auto_temp_off, \ | |
1007 | set_temp##offset##_auto_temp_off); \ | |
1008 | static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR, \ | |
1009 | show_temp##offset##_auto_temp_min, \ | |
1010 | set_temp##offset##_auto_temp_min); \ | |
1011 | static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR, \ | |
1012 | show_temp##offset##_auto_temp_max, \ | |
1013 | set_temp##offset##_auto_temp_max); \ | |
1014 | static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR, \ | |
1015 | show_temp##offset##_auto_temp_crit, \ | |
1016 | set_temp##offset##_auto_temp_crit); | |
1017 | temp_auto(1); | |
1018 | temp_auto(2); | |
1019 | temp_auto(3); | |
1020 | ||
d8d20615 | 1021 | static int lm85_attach_adapter(struct i2c_adapter *adapter) |
1da177e4 LT |
1022 | { |
1023 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
1024 | return 0; | |
2ed2dc3c | 1025 | return i2c_probe(adapter, &addr_data, lm85_detect); |
1da177e4 LT |
1026 | } |
1027 | ||
d8d20615 | 1028 | static int lm85_detect(struct i2c_adapter *adapter, int address, |
1da177e4 LT |
1029 | int kind) |
1030 | { | |
1031 | int company, verstep ; | |
1032 | struct i2c_client *new_client = NULL; | |
1033 | struct lm85_data *data; | |
1034 | int err = 0; | |
1035 | const char *type_name = ""; | |
1036 | ||
1da177e4 LT |
1037 | if (!i2c_check_functionality(adapter, |
1038 | I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1039 | /* We need to be able to do byte I/O */ | |
1040 | goto ERROR0 ; | |
1041 | }; | |
1042 | ||
1043 | /* OK. For now, we presume we have a valid client. We now create the | |
1044 | client structure, even though we cannot fill it completely yet. | |
1045 | But it allows us to access lm85_{read,write}_value. */ | |
1046 | ||
ba9c2e8d | 1047 | if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) { |
1da177e4 LT |
1048 | err = -ENOMEM; |
1049 | goto ERROR0; | |
1050 | } | |
1da177e4 LT |
1051 | |
1052 | new_client = &data->client; | |
1053 | i2c_set_clientdata(new_client, data); | |
1054 | new_client->addr = address; | |
1055 | new_client->adapter = adapter; | |
1056 | new_client->driver = &lm85_driver; | |
1057 | new_client->flags = 0; | |
1058 | ||
1059 | /* Now, we do the remaining detection. */ | |
1060 | ||
1061 | company = lm85_read_value(new_client, LM85_REG_COMPANY); | |
1062 | verstep = lm85_read_value(new_client, LM85_REG_VERSTEP); | |
1063 | ||
1064 | dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" | |
1065 | " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1066 | i2c_adapter_id(new_client->adapter), new_client->addr, | |
1067 | company, verstep); | |
1068 | ||
1069 | /* If auto-detecting, Determine the chip type. */ | |
1070 | if (kind <= 0) { | |
1071 | dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n", | |
1072 | i2c_adapter_id(adapter), address ); | |
1073 | if( company == LM85_COMPANY_NATIONAL | |
1074 | && verstep == LM85_VERSTEP_LM85C ) { | |
1075 | kind = lm85c ; | |
1076 | } else if( company == LM85_COMPANY_NATIONAL | |
1077 | && verstep == LM85_VERSTEP_LM85B ) { | |
1078 | kind = lm85b ; | |
1079 | } else if( company == LM85_COMPANY_NATIONAL | |
1080 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1081 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1082 | " Defaulting to LM85.\n", verstep); | |
1083 | kind = any_chip ; | |
1084 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1085 | && verstep == LM85_VERSTEP_ADM1027 ) { | |
1086 | kind = adm1027 ; | |
1087 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1088 | && (verstep == LM85_VERSTEP_ADT7463 | |
1089 | || verstep == LM85_VERSTEP_ADT7463C) ) { | |
1090 | kind = adt7463 ; | |
1091 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1092 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1093 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1094 | " Defaulting to Generic LM85.\n", verstep ); | |
1095 | kind = any_chip ; | |
1096 | } else if( company == LM85_COMPANY_SMSC | |
1097 | && (verstep == LM85_VERSTEP_EMC6D100_A0 | |
1098 | || verstep == LM85_VERSTEP_EMC6D100_A1) ) { | |
1099 | /* Unfortunately, we can't tell a '100 from a '101 | |
1100 | * from the registers. Since a '101 is a '100 | |
1101 | * in a package with fewer pins and therefore no | |
1102 | * 3.3V, 1.5V or 1.8V inputs, perhaps if those | |
1103 | * inputs read 0, then it's a '101. | |
1104 | */ | |
1105 | kind = emc6d100 ; | |
1106 | } else if( company == LM85_COMPANY_SMSC | |
1107 | && verstep == LM85_VERSTEP_EMC6D102) { | |
1108 | kind = emc6d102 ; | |
1109 | } else if( company == LM85_COMPANY_SMSC | |
1110 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1111 | dev_err(&adapter->dev, "lm85: Detected SMSC chip\n"); | |
1112 | dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x" | |
1113 | " Defaulting to Generic LM85.\n", verstep ); | |
1114 | kind = any_chip ; | |
1115 | } else if( kind == any_chip | |
1116 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1117 | dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n"); | |
1118 | /* Leave kind as "any_chip" */ | |
1119 | } else { | |
1120 | dev_dbg(&adapter->dev, "Autodetection failed\n"); | |
1121 | /* Not an LM85 ... */ | |
1122 | if( kind == any_chip ) { /* User used force=x,y */ | |
1123 | dev_err(&adapter->dev, "Generic LM85 Version 6 not" | |
1124 | " found at %d,0x%02x. Try force_lm85c.\n", | |
1125 | i2c_adapter_id(adapter), address ); | |
1126 | } | |
1127 | err = 0 ; | |
1128 | goto ERROR1; | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | /* Fill in the chip specific driver values */ | |
1133 | if ( kind == any_chip ) { | |
1134 | type_name = "lm85"; | |
1135 | } else if ( kind == lm85b ) { | |
1136 | type_name = "lm85b"; | |
1137 | } else if ( kind == lm85c ) { | |
1138 | type_name = "lm85c"; | |
1139 | } else if ( kind == adm1027 ) { | |
1140 | type_name = "adm1027"; | |
1141 | } else if ( kind == adt7463 ) { | |
1142 | type_name = "adt7463"; | |
1143 | } else if ( kind == emc6d100){ | |
1144 | type_name = "emc6d100"; | |
1145 | } else if ( kind == emc6d102 ) { | |
1146 | type_name = "emc6d102"; | |
1147 | } | |
1148 | strlcpy(new_client->name, type_name, I2C_NAME_SIZE); | |
1149 | ||
1150 | /* Fill in the remaining client fields */ | |
1151 | data->type = kind; | |
1152 | data->valid = 0; | |
9a61bf63 | 1153 | mutex_init(&data->update_lock); |
1da177e4 LT |
1154 | |
1155 | /* Tell the I2C layer a new client has arrived */ | |
1156 | if ((err = i2c_attach_client(new_client))) | |
1157 | goto ERROR1; | |
1158 | ||
1159 | /* Set the VRM version */ | |
303760b4 | 1160 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1161 | |
1162 | /* Initialize the LM85 chip */ | |
1163 | lm85_init_client(new_client); | |
1164 | ||
1165 | /* Register sysfs hooks */ | |
943b0830 MH |
1166 | data->class_dev = hwmon_device_register(&new_client->dev); |
1167 | if (IS_ERR(data->class_dev)) { | |
1168 | err = PTR_ERR(data->class_dev); | |
1169 | goto ERROR2; | |
1170 | } | |
1171 | ||
1da177e4 LT |
1172 | device_create_file(&new_client->dev, &dev_attr_fan1_input); |
1173 | device_create_file(&new_client->dev, &dev_attr_fan2_input); | |
1174 | device_create_file(&new_client->dev, &dev_attr_fan3_input); | |
1175 | device_create_file(&new_client->dev, &dev_attr_fan4_input); | |
1176 | device_create_file(&new_client->dev, &dev_attr_fan1_min); | |
1177 | device_create_file(&new_client->dev, &dev_attr_fan2_min); | |
1178 | device_create_file(&new_client->dev, &dev_attr_fan3_min); | |
1179 | device_create_file(&new_client->dev, &dev_attr_fan4_min); | |
1180 | device_create_file(&new_client->dev, &dev_attr_pwm1); | |
1181 | device_create_file(&new_client->dev, &dev_attr_pwm2); | |
1182 | device_create_file(&new_client->dev, &dev_attr_pwm3); | |
1183 | device_create_file(&new_client->dev, &dev_attr_pwm1_enable); | |
1184 | device_create_file(&new_client->dev, &dev_attr_pwm2_enable); | |
1185 | device_create_file(&new_client->dev, &dev_attr_pwm3_enable); | |
1186 | device_create_file(&new_client->dev, &dev_attr_in0_input); | |
1187 | device_create_file(&new_client->dev, &dev_attr_in1_input); | |
1188 | device_create_file(&new_client->dev, &dev_attr_in2_input); | |
1189 | device_create_file(&new_client->dev, &dev_attr_in3_input); | |
1da177e4 LT |
1190 | device_create_file(&new_client->dev, &dev_attr_in0_min); |
1191 | device_create_file(&new_client->dev, &dev_attr_in1_min); | |
1192 | device_create_file(&new_client->dev, &dev_attr_in2_min); | |
1193 | device_create_file(&new_client->dev, &dev_attr_in3_min); | |
1da177e4 LT |
1194 | device_create_file(&new_client->dev, &dev_attr_in0_max); |
1195 | device_create_file(&new_client->dev, &dev_attr_in1_max); | |
1196 | device_create_file(&new_client->dev, &dev_attr_in2_max); | |
1197 | device_create_file(&new_client->dev, &dev_attr_in3_max); | |
1da177e4 LT |
1198 | device_create_file(&new_client->dev, &dev_attr_temp1_input); |
1199 | device_create_file(&new_client->dev, &dev_attr_temp2_input); | |
1200 | device_create_file(&new_client->dev, &dev_attr_temp3_input); | |
1201 | device_create_file(&new_client->dev, &dev_attr_temp1_min); | |
1202 | device_create_file(&new_client->dev, &dev_attr_temp2_min); | |
1203 | device_create_file(&new_client->dev, &dev_attr_temp3_min); | |
1204 | device_create_file(&new_client->dev, &dev_attr_temp1_max); | |
1205 | device_create_file(&new_client->dev, &dev_attr_temp2_max); | |
1206 | device_create_file(&new_client->dev, &dev_attr_temp3_max); | |
1207 | device_create_file(&new_client->dev, &dev_attr_vrm); | |
1208 | device_create_file(&new_client->dev, &dev_attr_cpu0_vid); | |
1209 | device_create_file(&new_client->dev, &dev_attr_alarms); | |
1210 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels); | |
1211 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels); | |
1212 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels); | |
1213 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min); | |
1214 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min); | |
1215 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min); | |
1216 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl); | |
1217 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl); | |
1218 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl); | |
1219 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq); | |
1220 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq); | |
1221 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq); | |
1222 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off); | |
1223 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off); | |
1224 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off); | |
1225 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min); | |
1226 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min); | |
1227 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min); | |
1228 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max); | |
1229 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max); | |
1230 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max); | |
1231 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit); | |
1232 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit); | |
1233 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit); | |
1234 | ||
9c516ef4 JD |
1235 | /* The ADT7463 has an optional VRM 10 mode where pin 21 is used |
1236 | as a sixth digital VID input rather than an analog input. */ | |
1237 | data->vid = lm85_read_value(new_client, LM85_REG_VID); | |
1238 | if (!(kind == adt7463 && (data->vid & 0x80))) { | |
1239 | device_create_file(&new_client->dev, &dev_attr_in4_input); | |
1240 | device_create_file(&new_client->dev, &dev_attr_in4_min); | |
1241 | device_create_file(&new_client->dev, &dev_attr_in4_max); | |
1242 | } | |
1243 | ||
1da177e4 LT |
1244 | return 0; |
1245 | ||
1246 | /* Error out and cleanup code */ | |
943b0830 MH |
1247 | ERROR2: |
1248 | i2c_detach_client(new_client); | |
1da177e4 LT |
1249 | ERROR1: |
1250 | kfree(data); | |
1251 | ERROR0: | |
1252 | return err; | |
1253 | } | |
1254 | ||
d8d20615 | 1255 | static int lm85_detach_client(struct i2c_client *client) |
1da177e4 | 1256 | { |
943b0830 MH |
1257 | struct lm85_data *data = i2c_get_clientdata(client); |
1258 | hwmon_device_unregister(data->class_dev); | |
1da177e4 | 1259 | i2c_detach_client(client); |
943b0830 | 1260 | kfree(data); |
1da177e4 LT |
1261 | return 0; |
1262 | } | |
1263 | ||
1264 | ||
d8d20615 | 1265 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1266 | { |
1267 | int res; | |
1268 | ||
1269 | /* What size location is it? */ | |
1270 | switch( reg ) { | |
1271 | case LM85_REG_FAN(0) : /* Read WORD data */ | |
1272 | case LM85_REG_FAN(1) : | |
1273 | case LM85_REG_FAN(2) : | |
1274 | case LM85_REG_FAN(3) : | |
1275 | case LM85_REG_FAN_MIN(0) : | |
1276 | case LM85_REG_FAN_MIN(1) : | |
1277 | case LM85_REG_FAN_MIN(2) : | |
1278 | case LM85_REG_FAN_MIN(3) : | |
1279 | case LM85_REG_ALARM1 : /* Read both bytes at once */ | |
1280 | res = i2c_smbus_read_byte_data(client, reg) & 0xff ; | |
1281 | res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ; | |
1282 | break ; | |
1283 | case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */ | |
1284 | res = i2c_smbus_read_byte_data(client, reg) << 8 ; | |
1285 | res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ; | |
1286 | break ; | |
1287 | default: /* Read BYTE data */ | |
1288 | res = i2c_smbus_read_byte_data(client, reg); | |
1289 | break ; | |
1290 | } | |
1291 | ||
1292 | return res ; | |
1293 | } | |
1294 | ||
d8d20615 | 1295 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 LT |
1296 | { |
1297 | int res ; | |
1298 | ||
1299 | switch( reg ) { | |
1300 | case LM85_REG_FAN(0) : /* Write WORD data */ | |
1301 | case LM85_REG_FAN(1) : | |
1302 | case LM85_REG_FAN(2) : | |
1303 | case LM85_REG_FAN(3) : | |
1304 | case LM85_REG_FAN_MIN(0) : | |
1305 | case LM85_REG_FAN_MIN(1) : | |
1306 | case LM85_REG_FAN_MIN(2) : | |
1307 | case LM85_REG_FAN_MIN(3) : | |
1308 | /* NOTE: ALARM is read only, so not included here */ | |
1309 | res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ; | |
1310 | res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ; | |
1311 | break ; | |
1312 | case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */ | |
1313 | res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff); | |
1314 | res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ; | |
1315 | break ; | |
1316 | default: /* Write BYTE data */ | |
1317 | res = i2c_smbus_write_byte_data(client, reg, value); | |
1318 | break ; | |
1319 | } | |
1320 | ||
1321 | return res ; | |
1322 | } | |
1323 | ||
d8d20615 | 1324 | static void lm85_init_client(struct i2c_client *client) |
1da177e4 LT |
1325 | { |
1326 | int value; | |
1327 | struct lm85_data *data = i2c_get_clientdata(client); | |
1328 | ||
1329 | dev_dbg(&client->dev, "Initializing device\n"); | |
1330 | ||
1331 | /* Warn if part was not "READY" */ | |
1332 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1333 | dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value); | |
1334 | if( value & 0x02 ) { | |
1335 | dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n", | |
1336 | i2c_adapter_id(client->adapter), client->addr ); | |
1337 | }; | |
1338 | if( ! (value & 0x04) ) { | |
1339 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", | |
1340 | i2c_adapter_id(client->adapter), client->addr ); | |
1341 | }; | |
1342 | if( value & 0x10 | |
1343 | && ( data->type == adm1027 | |
1344 | || data->type == adt7463 ) ) { | |
1345 | dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. " | |
1346 | "Please report this to the lm85 maintainer.\n", | |
1347 | i2c_adapter_id(client->adapter), client->addr ); | |
1348 | }; | |
1349 | ||
1350 | /* WE INTENTIONALLY make no changes to the limits, | |
1351 | * offsets, pwms, fans and zones. If they were | |
1352 | * configured, we don't want to mess with them. | |
1353 | * If they weren't, the default is 100% PWM, no | |
1354 | * control and will suffice until 'sensors -s' | |
1355 | * can be run by the user. | |
1356 | */ | |
1357 | ||
1358 | /* Start monitoring */ | |
1359 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1360 | /* Try to clear LOCK, Set START, save everything else */ | |
1361 | value = (value & ~ 0x02) | 0x01 ; | |
1362 | dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); | |
1363 | lm85_write_value(client, LM85_REG_CONFIG, value); | |
1364 | } | |
1365 | ||
1366 | static struct lm85_data *lm85_update_device(struct device *dev) | |
1367 | { | |
1368 | struct i2c_client *client = to_i2c_client(dev); | |
1369 | struct lm85_data *data = i2c_get_clientdata(client); | |
1370 | int i; | |
1371 | ||
9a61bf63 | 1372 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1373 | |
1374 | if ( !data->valid || | |
1375 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) { | |
1376 | /* Things that change quickly */ | |
1377 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1378 | ||
1379 | /* Have to read extended bits first to "freeze" the | |
1380 | * more significant bits that are read later. | |
1381 | */ | |
1382 | if ( (data->type == adm1027) || (data->type == adt7463) ) { | |
1383 | int ext1 = lm85_read_value(client, | |
1384 | ADM1027_REG_EXTEND_ADC1); | |
1385 | int ext2 = lm85_read_value(client, | |
1386 | ADM1027_REG_EXTEND_ADC2); | |
1387 | int val = (ext1 << 8) + ext2; | |
1388 | ||
1389 | for(i = 0; i <= 4; i++) | |
1390 | data->in_ext[i] = (val>>(i * 2))&0x03; | |
1391 | ||
1392 | for(i = 0; i <= 2; i++) | |
1393 | data->temp_ext[i] = (val>>((i + 5) * 2))&0x03; | |
1394 | } | |
1395 | ||
1396 | /* adc_scale is 2^(number of LSBs). There are 4 extra bits in | |
1397 | the emc6d102 and 2 in the adt7463 and adm1027. In all | |
1398 | other chips ext is always 0 and the value of scale is | |
1399 | irrelevant. So it is left in 4*/ | |
1400 | data->adc_scale = (data->type == emc6d102 ) ? 16 : 4; | |
1401 | ||
9c516ef4 JD |
1402 | data->vid = lm85_read_value(client, LM85_REG_VID); |
1403 | ||
1404 | for (i = 0; i <= 3; ++i) { | |
1da177e4 LT |
1405 | data->in[i] = |
1406 | lm85_read_value(client, LM85_REG_IN(i)); | |
1407 | } | |
1408 | ||
9c516ef4 JD |
1409 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1410 | data->in[4] = lm85_read_value(client, | |
1411 | LM85_REG_IN(4)); | |
1412 | } | |
1413 | ||
1da177e4 LT |
1414 | for (i = 0; i <= 3; ++i) { |
1415 | data->fan[i] = | |
1416 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1417 | } | |
1418 | ||
1419 | for (i = 0; i <= 2; ++i) { | |
1420 | data->temp[i] = | |
1421 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1422 | } | |
1423 | ||
1424 | for (i = 0; i <= 2; ++i) { | |
1425 | data->pwm[i] = | |
1426 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1427 | } | |
1428 | ||
1429 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1430 | ||
1431 | if ( data->type == adt7463 ) { | |
1432 | if( data->therm_total < ULONG_MAX - 256 ) { | |
1433 | data->therm_total += | |
1434 | lm85_read_value(client, ADT7463_REG_THERM ); | |
1435 | } | |
1436 | } else if ( data->type == emc6d100 ) { | |
1437 | /* Three more voltage sensors */ | |
1438 | for (i = 5; i <= 7; ++i) { | |
1439 | data->in[i] = | |
1440 | lm85_read_value(client, EMC6D100_REG_IN(i)); | |
1441 | } | |
1442 | /* More alarm bits */ | |
1443 | data->alarms |= | |
1444 | lm85_read_value(client, EMC6D100_REG_ALARM3) << 16; | |
1445 | } else if (data->type == emc6d102 ) { | |
1446 | /* Have to read LSB bits after the MSB ones because | |
1447 | the reading of the MSB bits has frozen the | |
1448 | LSBs (backward from the ADM1027). | |
1449 | */ | |
1450 | int ext1 = lm85_read_value(client, | |
1451 | EMC6D102_REG_EXTEND_ADC1); | |
1452 | int ext2 = lm85_read_value(client, | |
1453 | EMC6D102_REG_EXTEND_ADC2); | |
1454 | int ext3 = lm85_read_value(client, | |
1455 | EMC6D102_REG_EXTEND_ADC3); | |
1456 | int ext4 = lm85_read_value(client, | |
1457 | EMC6D102_REG_EXTEND_ADC4); | |
1458 | data->in_ext[0] = ext3 & 0x0f; | |
1459 | data->in_ext[1] = ext4 & 0x0f; | |
1460 | data->in_ext[2] = (ext4 >> 4) & 0x0f; | |
1461 | data->in_ext[3] = (ext3 >> 4) & 0x0f; | |
1462 | data->in_ext[4] = (ext2 >> 4) & 0x0f; | |
1463 | ||
1464 | data->temp_ext[0] = ext1 & 0x0f; | |
1465 | data->temp_ext[1] = ext2 & 0x0f; | |
1466 | data->temp_ext[2] = (ext1 >> 4) & 0x0f; | |
1467 | } | |
1468 | ||
1469 | data->last_reading = jiffies ; | |
1470 | }; /* last_reading */ | |
1471 | ||
1472 | if ( !data->valid || | |
1473 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) { | |
1474 | /* Things that don't change often */ | |
1475 | dev_dbg(&client->dev, "Reading config values\n"); | |
1476 | ||
9c516ef4 | 1477 | for (i = 0; i <= 3; ++i) { |
1da177e4 LT |
1478 | data->in_min[i] = |
1479 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1480 | data->in_max[i] = | |
1481 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
1482 | } | |
1483 | ||
9c516ef4 JD |
1484 | if (!(data->type == adt7463 && (data->vid & 0x80))) { |
1485 | data->in_min[4] = lm85_read_value(client, | |
1486 | LM85_REG_IN_MIN(4)); | |
1487 | data->in_max[4] = lm85_read_value(client, | |
1488 | LM85_REG_IN_MAX(4)); | |
1489 | } | |
1490 | ||
1da177e4 LT |
1491 | if ( data->type == emc6d100 ) { |
1492 | for (i = 5; i <= 7; ++i) { | |
1493 | data->in_min[i] = | |
1494 | lm85_read_value(client, EMC6D100_REG_IN_MIN(i)); | |
1495 | data->in_max[i] = | |
1496 | lm85_read_value(client, EMC6D100_REG_IN_MAX(i)); | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | for (i = 0; i <= 3; ++i) { | |
1501 | data->fan_min[i] = | |
1502 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1503 | } | |
1504 | ||
1505 | for (i = 0; i <= 2; ++i) { | |
1506 | data->temp_min[i] = | |
1507 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1508 | data->temp_max[i] = | |
1509 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1510 | } | |
1511 | ||
1da177e4 LT |
1512 | for (i = 0; i <= 2; ++i) { |
1513 | int val ; | |
1514 | data->autofan[i].config = | |
1515 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1516 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
1517 | data->autofan[i].freq = val & 0x07 ; | |
1518 | data->zone[i].range = (val >> 4) & 0x0f ; | |
1519 | data->autofan[i].min_pwm = | |
1520 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1521 | data->zone[i].limit = | |
1522 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1523 | data->zone[i].critical = | |
1524 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1525 | } | |
1526 | ||
1527 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1528 | data->smooth[0] = i & 0x0f ; | |
1529 | data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */ | |
1530 | data->autofan[0].min_off = (i & 0x20) != 0 ; | |
1531 | data->autofan[1].min_off = (i & 0x40) != 0 ; | |
1532 | data->autofan[2].min_off = (i & 0x80) != 0 ; | |
1533 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2); | |
1534 | data->smooth[1] = (i>>4) & 0x0f ; | |
1535 | data->smooth[2] = i & 0x0f ; | |
1536 | ||
1537 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
1538 | data->zone[0].hyst = (i>>4) & 0x0f ; | |
1539 | data->zone[1].hyst = i & 0x0f ; | |
1540 | ||
1541 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
1542 | data->zone[2].hyst = (i>>4) & 0x0f ; | |
1543 | ||
1544 | if ( (data->type == lm85b) || (data->type == lm85c) ) { | |
1545 | data->tach_mode = lm85_read_value(client, | |
1546 | LM85_REG_TACH_MODE ); | |
1547 | data->spinup_ctl = lm85_read_value(client, | |
1548 | LM85_REG_SPINUP_CTL ); | |
1549 | } else if ( (data->type == adt7463) || (data->type == adm1027) ) { | |
1550 | if ( data->type == adt7463 ) { | |
1551 | for (i = 0; i <= 2; ++i) { | |
1552 | data->oppoint[i] = lm85_read_value(client, | |
1553 | ADT7463_REG_OPPOINT(i) ); | |
1554 | } | |
1555 | data->tmin_ctl = lm85_read_value(client, | |
1556 | ADT7463_REG_TMIN_CTL1 ); | |
1557 | data->therm_limit = lm85_read_value(client, | |
1558 | ADT7463_REG_THERM_LIMIT ); | |
1559 | } | |
1560 | for (i = 0; i <= 2; ++i) { | |
1561 | data->temp_offset[i] = lm85_read_value(client, | |
1562 | ADM1027_REG_TEMP_OFFSET(i) ); | |
1563 | } | |
1564 | data->tach_mode = lm85_read_value(client, | |
1565 | ADM1027_REG_CONFIG3 ); | |
1566 | data->fan_ppr = lm85_read_value(client, | |
1567 | ADM1027_REG_FAN_PPR ); | |
1568 | } | |
1569 | ||
1570 | data->last_config = jiffies; | |
1571 | }; /* last_config */ | |
1572 | ||
1573 | data->valid = 1; | |
1574 | ||
9a61bf63 | 1575 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1576 | |
1577 | return data; | |
1578 | } | |
1579 | ||
1580 | ||
1581 | static int __init sm_lm85_init(void) | |
1582 | { | |
1583 | return i2c_add_driver(&lm85_driver); | |
1584 | } | |
1585 | ||
1586 | static void __exit sm_lm85_exit(void) | |
1587 | { | |
1588 | i2c_del_driver(&lm85_driver); | |
1589 | } | |
1590 | ||
1591 | /* Thanks to Richard Barrington for adding the LM85 to sensors-detect. | |
1592 | * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with | |
1593 | * post 2.7.0 CVS changes. | |
1594 | */ | |
1595 | MODULE_LICENSE("GPL"); | |
1596 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com"); | |
1597 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); | |
1598 | ||
1599 | module_init(sm_lm85_init); | |
1600 | module_exit(sm_lm85_exit); |