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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> |
1da177e4 LT |
34 | |
35 | /* Addresses to scan */ | |
36 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; | |
1da177e4 LT |
37 | |
38 | /* Insmod parameters */ | |
f4b50261 | 39 | I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102); |
1da177e4 LT |
40 | |
41 | /* The LM85 registers */ | |
42 | ||
43 | #define LM85_REG_IN(nr) (0x20 + (nr)) | |
44 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) | |
45 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) | |
46 | ||
47 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) | |
48 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) | |
49 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) | |
50 | ||
51 | /* Fan speeds are LSB, MSB (2 bytes) */ | |
52 | #define LM85_REG_FAN(nr) (0x28 + (nr) *2) | |
53 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) *2) | |
54 | ||
55 | #define LM85_REG_PWM(nr) (0x30 + (nr)) | |
56 | ||
57 | #define ADT7463_REG_OPPOINT(nr) (0x33 + (nr)) | |
58 | ||
59 | #define ADT7463_REG_TMIN_CTL1 0x36 | |
60 | #define ADT7463_REG_TMIN_CTL2 0x37 | |
61 | ||
62 | #define LM85_REG_DEVICE 0x3d | |
63 | #define LM85_REG_COMPANY 0x3e | |
64 | #define LM85_REG_VERSTEP 0x3f | |
65 | /* These are the recognized values for the above regs */ | |
66 | #define LM85_DEVICE_ADX 0x27 | |
67 | #define LM85_COMPANY_NATIONAL 0x01 | |
68 | #define LM85_COMPANY_ANALOG_DEV 0x41 | |
69 | #define LM85_COMPANY_SMSC 0x5c | |
70 | #define LM85_VERSTEP_VMASK 0xf0 | |
71 | #define LM85_VERSTEP_GENERIC 0x60 | |
72 | #define LM85_VERSTEP_LM85C 0x60 | |
73 | #define LM85_VERSTEP_LM85B 0x62 | |
74 | #define LM85_VERSTEP_ADM1027 0x60 | |
75 | #define LM85_VERSTEP_ADT7463 0x62 | |
76 | #define LM85_VERSTEP_ADT7463C 0x6A | |
77 | #define LM85_VERSTEP_EMC6D100_A0 0x60 | |
78 | #define LM85_VERSTEP_EMC6D100_A1 0x61 | |
79 | #define LM85_VERSTEP_EMC6D102 0x65 | |
80 | ||
81 | #define LM85_REG_CONFIG 0x40 | |
82 | ||
83 | #define LM85_REG_ALARM1 0x41 | |
84 | #define LM85_REG_ALARM2 0x42 | |
85 | ||
86 | #define LM85_REG_VID 0x43 | |
87 | ||
88 | /* Automated FAN control */ | |
89 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) | |
90 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) | |
91 | #define LM85_REG_AFAN_SPIKE1 0x62 | |
92 | #define LM85_REG_AFAN_SPIKE2 0x63 | |
93 | #define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr)) | |
94 | #define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr)) | |
95 | #define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr)) | |
96 | #define LM85_REG_AFAN_HYST1 0x6d | |
97 | #define LM85_REG_AFAN_HYST2 0x6e | |
98 | ||
99 | #define LM85_REG_TACH_MODE 0x74 | |
100 | #define LM85_REG_SPINUP_CTL 0x75 | |
101 | ||
102 | #define ADM1027_REG_TEMP_OFFSET(nr) (0x70 + (nr)) | |
103 | #define ADM1027_REG_CONFIG2 0x73 | |
104 | #define ADM1027_REG_INTMASK1 0x74 | |
105 | #define ADM1027_REG_INTMASK2 0x75 | |
106 | #define ADM1027_REG_EXTEND_ADC1 0x76 | |
107 | #define ADM1027_REG_EXTEND_ADC2 0x77 | |
108 | #define ADM1027_REG_CONFIG3 0x78 | |
109 | #define ADM1027_REG_FAN_PPR 0x7b | |
110 | ||
111 | #define ADT7463_REG_THERM 0x79 | |
112 | #define ADT7463_REG_THERM_LIMIT 0x7A | |
113 | ||
114 | #define EMC6D100_REG_ALARM3 0x7d | |
115 | /* IN5, IN6 and IN7 */ | |
116 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr)-5)) | |
117 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr)-5) * 2) | |
118 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr)-5) * 2) | |
119 | #define EMC6D102_REG_EXTEND_ADC1 0x85 | |
120 | #define EMC6D102_REG_EXTEND_ADC2 0x86 | |
121 | #define EMC6D102_REG_EXTEND_ADC3 0x87 | |
122 | #define EMC6D102_REG_EXTEND_ADC4 0x88 | |
123 | ||
124 | #define LM85_ALARM_IN0 0x0001 | |
125 | #define LM85_ALARM_IN1 0x0002 | |
126 | #define LM85_ALARM_IN2 0x0004 | |
127 | #define LM85_ALARM_IN3 0x0008 | |
128 | #define LM85_ALARM_TEMP1 0x0010 | |
129 | #define LM85_ALARM_TEMP2 0x0020 | |
130 | #define LM85_ALARM_TEMP3 0x0040 | |
131 | #define LM85_ALARM_ALARM2 0x0080 | |
132 | #define LM85_ALARM_IN4 0x0100 | |
133 | #define LM85_ALARM_RESERVED 0x0200 | |
134 | #define LM85_ALARM_FAN1 0x0400 | |
135 | #define LM85_ALARM_FAN2 0x0800 | |
136 | #define LM85_ALARM_FAN3 0x1000 | |
137 | #define LM85_ALARM_FAN4 0x2000 | |
138 | #define LM85_ALARM_TEMP1_FAULT 0x4000 | |
139 | #define LM85_ALARM_TEMP3_FAULT 0x8000 | |
140 | ||
141 | ||
142 | /* Conversions. Rounding and limit checking is only done on the TO_REG | |
143 | variants. Note that you should be a bit careful with which arguments | |
144 | these macros are called: arguments may be evaluated more than once. | |
145 | */ | |
146 | ||
147 | /* IN are scaled acording to built-in resistors */ | |
148 | static int lm85_scaling[] = { /* .001 Volts */ | |
149 | 2500, 2250, 3300, 5000, 12000, | |
150 | 3300, 1500, 1800 /*EMC6D100*/ | |
151 | }; | |
152 | #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from)) | |
153 | ||
154 | #define INS_TO_REG(n,val) \ | |
155 | SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255) | |
156 | ||
157 | #define INSEXT_FROM_REG(n,val,ext,scale) \ | |
158 | SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n]) | |
159 | ||
160 | #define INS_FROM_REG(n,val) INSEXT_FROM_REG(n,val,0,1) | |
161 | ||
162 | /* FAN speed is measured using 90kHz clock */ | |
163 | #define FAN_TO_REG(val) (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534)) | |
164 | #define FAN_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:5400000/(val)) | |
165 | ||
166 | /* Temperature is reported in .001 degC increments */ | |
167 | #define TEMP_TO_REG(val) \ | |
168 | SENSORS_LIMIT(SCALE(val,1000,1),-127,127) | |
169 | #define TEMPEXT_FROM_REG(val,ext,scale) \ | |
170 | SCALE((val)*scale + (ext),scale,1000) | |
171 | #define TEMP_FROM_REG(val) \ | |
172 | TEMPEXT_FROM_REG(val,0,1) | |
173 | ||
174 | #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255)) | |
175 | #define PWM_FROM_REG(val) (val) | |
176 | ||
177 | ||
178 | /* ZONEs have the following parameters: | |
179 | * Limit (low) temp, 1. degC | |
180 | * Hysteresis (below limit), 1. degC (0-15) | |
181 | * Range of speed control, .1 degC (2-80) | |
182 | * Critical (high) temp, 1. degC | |
183 | * | |
184 | * FAN PWMs have the following parameters: | |
185 | * Reference Zone, 1, 2, 3, etc. | |
186 | * Spinup time, .05 sec | |
187 | * PWM value at limit/low temp, 1 count | |
188 | * PWM Frequency, 1. Hz | |
189 | * PWM is Min or OFF below limit, flag | |
190 | * Invert PWM output, flag | |
191 | * | |
192 | * Some chips filter the temp, others the fan. | |
193 | * Filter constant (or disabled) .1 seconds | |
194 | */ | |
195 | ||
196 | /* These are the zone temperature range encodings in .001 degree C */ | |
197 | static int lm85_range_map[] = { | |
198 | 2000, 2500, 3300, 4000, 5000, 6600, | |
199 | 8000, 10000, 13300, 16000, 20000, 26600, | |
200 | 32000, 40000, 53300, 80000 | |
201 | }; | |
202 | static int RANGE_TO_REG( int range ) | |
203 | { | |
204 | int i; | |
205 | ||
206 | if ( range < lm85_range_map[0] ) { | |
207 | return 0 ; | |
208 | } else if ( range > lm85_range_map[15] ) { | |
209 | return 15 ; | |
210 | } else { /* find closest match */ | |
211 | for ( i = 14 ; i >= 0 ; --i ) { | |
212 | if ( range > lm85_range_map[i] ) { /* range bracketed */ | |
213 | if ((lm85_range_map[i+1] - range) < | |
214 | (range - lm85_range_map[i])) { | |
215 | i++; | |
216 | break; | |
217 | } | |
218 | break; | |
219 | } | |
220 | } | |
221 | } | |
222 | return( i & 0x0f ); | |
223 | } | |
224 | #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f]) | |
225 | ||
226 | /* These are the Acoustic Enhancement, or Temperature smoothing encodings | |
227 | * NOTE: The enable/disable bit is INCLUDED in these encodings as the | |
228 | * MSB (bit 3, value 8). If the enable bit is 0, the encoded value | |
229 | * is ignored, or set to 0. | |
230 | */ | |
231 | /* These are the PWM frequency encodings */ | |
232 | static int lm85_freq_map[] = { /* .1 Hz */ | |
233 | 100, 150, 230, 300, 380, 470, 620, 940 | |
234 | }; | |
235 | static int FREQ_TO_REG( int freq ) | |
236 | { | |
237 | int i; | |
238 | ||
239 | if( freq >= lm85_freq_map[7] ) { return 7 ; } | |
240 | for( i = 0 ; i < 7 ; ++i ) | |
241 | if( freq <= lm85_freq_map[i] ) | |
242 | break ; | |
243 | return( i & 0x07 ); | |
244 | } | |
245 | #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07]) | |
246 | ||
247 | /* Since we can't use strings, I'm abusing these numbers | |
248 | * to stand in for the following meanings: | |
249 | * 1 -- PWM responds to Zone 1 | |
250 | * 2 -- PWM responds to Zone 2 | |
251 | * 3 -- PWM responds to Zone 3 | |
252 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 | |
253 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 | |
254 | * 0 -- PWM is always at 0% (ie, off) | |
255 | * -1 -- PWM is always at 100% | |
256 | * -2 -- PWM responds to manual control | |
257 | */ | |
258 | ||
259 | static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; | |
260 | #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07]) | |
261 | ||
262 | static int ZONE_TO_REG( int zone ) | |
263 | { | |
264 | int i; | |
265 | ||
266 | for( i = 0 ; i <= 7 ; ++i ) | |
267 | if( zone == lm85_zone_map[i] ) | |
268 | break ; | |
269 | if( i > 7 ) /* Not found. */ | |
270 | i = 3; /* Always 100% */ | |
271 | return( (i & 0x07)<<5 ); | |
272 | } | |
273 | ||
274 | #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15)) | |
275 | #define HYST_FROM_REG(val) ((val)*1000) | |
276 | ||
277 | #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127)) | |
278 | #define OFFSET_FROM_REG(val) ((val)*25) | |
279 | ||
280 | #define PPR_MASK(fan) (0x03<<(fan *2)) | |
281 | #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2)) | |
282 | #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1) | |
283 | ||
1da177e4 LT |
284 | /* Chip sampling rates |
285 | * | |
286 | * Some sensors are not updated more frequently than once per second | |
287 | * so it doesn't make sense to read them more often than that. | |
288 | * We cache the results and return the saved data if the driver | |
289 | * is called again before a second has elapsed. | |
290 | * | |
291 | * Also, there is significant configuration data for this chip | |
292 | * given the automatic PWM fan control that is possible. There | |
293 | * are about 47 bytes of config data to only 22 bytes of actual | |
294 | * readings. So, we keep the config data up to date in the cache | |
295 | * when it is written and only sample it once every 1 *minute* | |
296 | */ | |
297 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) | |
298 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) | |
299 | ||
300 | /* For each registered LM85, we need to keep some data in memory. That | |
301 | data is pointed to by lm85_list[NR]->data. The structure itself is | |
302 | dynamically allocated, at the same time when a new lm85 client is | |
303 | allocated. */ | |
304 | ||
305 | /* LM85 can automatically adjust fan speeds based on temperature | |
306 | * This structure encapsulates an entire Zone config. There are | |
307 | * three zones (one for each temperature input) on the lm85 | |
308 | */ | |
309 | struct lm85_zone { | |
310 | s8 limit; /* Low temp limit */ | |
311 | u8 hyst; /* Low limit hysteresis. (0-15) */ | |
312 | u8 range; /* Temp range, encoded */ | |
313 | s8 critical; /* "All fans ON" temp limit */ | |
314 | u8 off_desired; /* Actual "off" temperature specified. Preserved | |
315 | * to prevent "drift" as other autofan control | |
316 | * values change. | |
317 | */ | |
318 | u8 max_desired; /* Actual "max" temperature specified. Preserved | |
319 | * to prevent "drift" as other autofan control | |
320 | * values change. | |
321 | */ | |
322 | }; | |
323 | ||
324 | struct lm85_autofan { | |
325 | u8 config; /* Register value */ | |
326 | u8 freq; /* PWM frequency, encoded */ | |
327 | u8 min_pwm; /* Minimum PWM value, encoded */ | |
328 | u8 min_off; /* Min PWM or OFF below "limit", flag */ | |
329 | }; | |
330 | ||
331 | struct lm85_data { | |
332 | struct i2c_client client; | |
943b0830 | 333 | struct class_device *class_dev; |
1da177e4 LT |
334 | struct semaphore lock; |
335 | enum chips type; | |
336 | ||
337 | struct semaphore update_lock; | |
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 | ||
376 | static int lm85_read_value(struct i2c_client *client, u8 register); | |
377 | static int lm85_write_value(struct i2c_client *client, u8 register, int value); | |
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 = { | |
383 | .owner = THIS_MODULE, | |
384 | .name = "lm85", | |
385 | .id = I2C_DRIVERID_LM85, | |
386 | .flags = I2C_DF_NOTIFY, | |
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 | ||
410 | down(&data->update_lock); | |
411 | data->fan_min[nr] = FAN_TO_REG(val); | |
412 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]); | |
413 | up(&data->update_lock); | |
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); | |
446 | return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm)); | |
447 | } | |
448 | ||
449 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL); | |
450 | ||
8627f9ba | 451 | static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
452 | { |
453 | struct lm85_data *data = lm85_update_device(dev); | |
454 | return sprintf(buf, "%ld\n", (long) data->vrm); | |
455 | } | |
456 | ||
8627f9ba | 457 | static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
458 | { |
459 | struct i2c_client *client = to_i2c_client(dev); | |
460 | struct lm85_data *data = i2c_get_clientdata(client); | |
461 | u32 val; | |
462 | ||
463 | val = simple_strtoul(buf, NULL, 10); | |
464 | data->vrm = val; | |
465 | return count; | |
466 | } | |
467 | ||
468 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg); | |
469 | ||
8627f9ba | 470 | static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
471 | { |
472 | struct lm85_data *data = lm85_update_device(dev); | |
68188ba7 | 473 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
474 | } |
475 | ||
476 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL); | |
477 | ||
478 | /* pwm */ | |
479 | ||
480 | static ssize_t show_pwm(struct device *dev, char *buf, int nr) | |
481 | { | |
482 | struct lm85_data *data = lm85_update_device(dev); | |
483 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) ); | |
484 | } | |
485 | static ssize_t set_pwm(struct device *dev, const char *buf, | |
486 | size_t count, int nr) | |
487 | { | |
488 | struct i2c_client *client = to_i2c_client(dev); | |
489 | struct lm85_data *data = i2c_get_clientdata(client); | |
490 | long val = simple_strtol(buf, NULL, 10); | |
491 | ||
492 | down(&data->update_lock); | |
493 | data->pwm[nr] = PWM_TO_REG(val); | |
494 | lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]); | |
495 | up(&data->update_lock); | |
496 | return count; | |
497 | } | |
498 | static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr) | |
499 | { | |
500 | struct lm85_data *data = lm85_update_device(dev); | |
501 | int pwm_zone; | |
502 | ||
503 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); | |
504 | return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) ); | |
505 | } | |
506 | ||
507 | #define show_pwm_reg(offset) \ | |
8627f9ba | 508 | static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
509 | { \ |
510 | return show_pwm(dev, buf, offset - 1); \ | |
511 | } \ | |
8627f9ba | 512 | static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
513 | const char *buf, size_t count) \ |
514 | { \ | |
515 | return set_pwm(dev, buf, count, offset - 1); \ | |
516 | } \ | |
8627f9ba | 517 | static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
518 | { \ |
519 | return show_pwm_enable(dev, buf, offset - 1); \ | |
520 | } \ | |
521 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
522 | show_pwm_##offset, set_pwm_##offset); \ | |
523 | static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, \ | |
524 | show_pwm_enable##offset, NULL); | |
525 | ||
526 | show_pwm_reg(1); | |
527 | show_pwm_reg(2); | |
528 | show_pwm_reg(3); | |
529 | ||
530 | /* Voltages */ | |
531 | ||
532 | static ssize_t show_in(struct device *dev, char *buf, int nr) | |
533 | { | |
534 | struct lm85_data *data = lm85_update_device(dev); | |
535 | return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr, | |
536 | data->in[nr], | |
537 | data->in_ext[nr], | |
538 | data->adc_scale) ); | |
539 | } | |
540 | static ssize_t show_in_min(struct device *dev, char *buf, int nr) | |
541 | { | |
542 | struct lm85_data *data = lm85_update_device(dev); | |
543 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) ); | |
544 | } | |
545 | static ssize_t set_in_min(struct device *dev, const char *buf, | |
546 | size_t count, int nr) | |
547 | { | |
548 | struct i2c_client *client = to_i2c_client(dev); | |
549 | struct lm85_data *data = i2c_get_clientdata(client); | |
550 | long val = simple_strtol(buf, NULL, 10); | |
551 | ||
552 | down(&data->update_lock); | |
553 | data->in_min[nr] = INS_TO_REG(nr, val); | |
554 | lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]); | |
555 | up(&data->update_lock); | |
556 | return count; | |
557 | } | |
558 | static ssize_t show_in_max(struct device *dev, char *buf, int nr) | |
559 | { | |
560 | struct lm85_data *data = lm85_update_device(dev); | |
561 | return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) ); | |
562 | } | |
563 | static ssize_t set_in_max(struct device *dev, const char *buf, | |
564 | size_t count, int nr) | |
565 | { | |
566 | struct i2c_client *client = to_i2c_client(dev); | |
567 | struct lm85_data *data = i2c_get_clientdata(client); | |
568 | long val = simple_strtol(buf, NULL, 10); | |
569 | ||
570 | down(&data->update_lock); | |
571 | data->in_max[nr] = INS_TO_REG(nr, val); | |
572 | lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]); | |
573 | up(&data->update_lock); | |
574 | return count; | |
575 | } | |
576 | #define show_in_reg(offset) \ | |
8627f9ba | 577 | static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
578 | { \ |
579 | return show_in(dev, buf, offset); \ | |
580 | } \ | |
8627f9ba | 581 | static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
582 | { \ |
583 | return show_in_min(dev, buf, offset); \ | |
584 | } \ | |
8627f9ba | 585 | static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
586 | { \ |
587 | return show_in_max(dev, buf, offset); \ | |
588 | } \ | |
8627f9ba | 589 | static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
590 | const char *buf, size_t count) \ |
591 | { \ | |
592 | return set_in_min(dev, buf, count, offset); \ | |
593 | } \ | |
8627f9ba | 594 | static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
595 | const char *buf, size_t count) \ |
596 | { \ | |
597 | return set_in_max(dev, buf, count, offset); \ | |
598 | } \ | |
599 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, \ | |
600 | NULL); \ | |
601 | static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
602 | show_in_##offset##_min, set_in_##offset##_min); \ | |
603 | static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
604 | show_in_##offset##_max, set_in_##offset##_max); | |
605 | ||
606 | show_in_reg(0); | |
607 | show_in_reg(1); | |
608 | show_in_reg(2); | |
609 | show_in_reg(3); | |
610 | show_in_reg(4); | |
611 | ||
612 | /* Temps */ | |
613 | ||
614 | static ssize_t show_temp(struct device *dev, char *buf, int nr) | |
615 | { | |
616 | struct lm85_data *data = lm85_update_device(dev); | |
617 | return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr], | |
618 | data->temp_ext[nr], | |
619 | data->adc_scale) ); | |
620 | } | |
621 | static ssize_t show_temp_min(struct device *dev, char *buf, int nr) | |
622 | { | |
623 | struct lm85_data *data = lm85_update_device(dev); | |
624 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) ); | |
625 | } | |
626 | static ssize_t set_temp_min(struct device *dev, const char *buf, | |
627 | size_t count, int nr) | |
628 | { | |
629 | struct i2c_client *client = to_i2c_client(dev); | |
630 | struct lm85_data *data = i2c_get_clientdata(client); | |
631 | long val = simple_strtol(buf, NULL, 10); | |
632 | ||
633 | down(&data->update_lock); | |
634 | data->temp_min[nr] = TEMP_TO_REG(val); | |
635 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]); | |
636 | up(&data->update_lock); | |
637 | return count; | |
638 | } | |
639 | static ssize_t show_temp_max(struct device *dev, char *buf, int nr) | |
640 | { | |
641 | struct lm85_data *data = lm85_update_device(dev); | |
642 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) ); | |
643 | } | |
644 | static ssize_t set_temp_max(struct device *dev, const char *buf, | |
645 | size_t count, int nr) | |
646 | { | |
647 | struct i2c_client *client = to_i2c_client(dev); | |
648 | struct lm85_data *data = i2c_get_clientdata(client); | |
649 | long val = simple_strtol(buf, NULL, 10); | |
650 | ||
651 | down(&data->update_lock); | |
652 | data->temp_max[nr] = TEMP_TO_REG(val); | |
653 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]); | |
654 | up(&data->update_lock); | |
655 | return count; | |
656 | } | |
657 | #define show_temp_reg(offset) \ | |
8627f9ba | 658 | static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
659 | { \ |
660 | return show_temp(dev, buf, offset - 1); \ | |
661 | } \ | |
8627f9ba | 662 | static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
663 | { \ |
664 | return show_temp_min(dev, buf, offset - 1); \ | |
665 | } \ | |
8627f9ba | 666 | static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
667 | { \ |
668 | return show_temp_max(dev, buf, offset - 1); \ | |
669 | } \ | |
8627f9ba | 670 | static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
671 | const char *buf, size_t count) \ |
672 | { \ | |
673 | return set_temp_min(dev, buf, count, offset - 1); \ | |
674 | } \ | |
8627f9ba | 675 | static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
676 | const char *buf, size_t count) \ |
677 | { \ | |
678 | return set_temp_max(dev, buf, count, offset - 1); \ | |
679 | } \ | |
680 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \ | |
681 | NULL); \ | |
682 | static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
683 | show_temp_##offset##_min, set_temp_##offset##_min); \ | |
684 | static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
685 | show_temp_##offset##_max, set_temp_##offset##_max); | |
686 | ||
687 | show_temp_reg(1); | |
688 | show_temp_reg(2); | |
689 | show_temp_reg(3); | |
690 | ||
691 | ||
692 | /* Automatic PWM control */ | |
693 | ||
694 | static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr) | |
695 | { | |
696 | struct lm85_data *data = lm85_update_device(dev); | |
697 | return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config)); | |
698 | } | |
699 | static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf, | |
700 | size_t count, int nr) | |
701 | { | |
702 | struct i2c_client *client = to_i2c_client(dev); | |
703 | struct lm85_data *data = i2c_get_clientdata(client); | |
704 | long val = simple_strtol(buf, NULL, 10); | |
705 | ||
706 | down(&data->update_lock); | |
707 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) | |
708 | | ZONE_TO_REG(val) ; | |
709 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), | |
710 | data->autofan[nr].config); | |
711 | up(&data->update_lock); | |
712 | return count; | |
713 | } | |
714 | static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr) | |
715 | { | |
716 | struct lm85_data *data = lm85_update_device(dev); | |
717 | return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm)); | |
718 | } | |
719 | static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf, | |
720 | size_t count, int nr) | |
721 | { | |
722 | struct i2c_client *client = to_i2c_client(dev); | |
723 | struct lm85_data *data = i2c_get_clientdata(client); | |
724 | long val = simple_strtol(buf, NULL, 10); | |
725 | ||
726 | down(&data->update_lock); | |
727 | data->autofan[nr].min_pwm = PWM_TO_REG(val); | |
728 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), | |
729 | data->autofan[nr].min_pwm); | |
730 | up(&data->update_lock); | |
731 | return count; | |
732 | } | |
733 | static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr) | |
734 | { | |
735 | struct lm85_data *data = lm85_update_device(dev); | |
736 | return sprintf(buf,"%d\n", data->autofan[nr].min_off); | |
737 | } | |
738 | static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf, | |
739 | size_t count, int nr) | |
740 | { | |
741 | struct i2c_client *client = to_i2c_client(dev); | |
742 | struct lm85_data *data = i2c_get_clientdata(client); | |
743 | long val = simple_strtol(buf, NULL, 10); | |
744 | ||
745 | down(&data->update_lock); | |
746 | data->autofan[nr].min_off = val; | |
747 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0] | |
748 | | data->syncpwm3 | |
749 | | (data->autofan[0].min_off ? 0x20 : 0) | |
750 | | (data->autofan[1].min_off ? 0x40 : 0) | |
751 | | (data->autofan[2].min_off ? 0x80 : 0) | |
752 | ); | |
753 | up(&data->update_lock); | |
754 | return count; | |
755 | } | |
756 | static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr) | |
757 | { | |
758 | struct lm85_data *data = lm85_update_device(dev); | |
759 | return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq)); | |
760 | } | |
761 | static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf, | |
762 | size_t count, int nr) | |
763 | { | |
764 | struct i2c_client *client = to_i2c_client(dev); | |
765 | struct lm85_data *data = i2c_get_clientdata(client); | |
766 | long val = simple_strtol(buf, NULL, 10); | |
767 | ||
768 | down(&data->update_lock); | |
769 | data->autofan[nr].freq = FREQ_TO_REG(val); | |
770 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
771 | (data->zone[nr].range << 4) | |
772 | | data->autofan[nr].freq | |
773 | ); | |
774 | up(&data->update_lock); | |
775 | return count; | |
776 | } | |
777 | #define pwm_auto(offset) \ | |
8627f9ba | 778 | static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
779 | char *buf) \ |
780 | { \ | |
781 | return show_pwm_auto_channels(dev, buf, offset - 1); \ | |
782 | } \ | |
8627f9ba | 783 | static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
784 | const char *buf, size_t count) \ |
785 | { \ | |
786 | return set_pwm_auto_channels(dev, buf, count, offset - 1); \ | |
787 | } \ | |
8627f9ba | 788 | static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
789 | char *buf) \ |
790 | { \ | |
791 | return show_pwm_auto_pwm_min(dev, buf, offset - 1); \ | |
792 | } \ | |
8627f9ba | 793 | static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
794 | const char *buf, size_t count) \ |
795 | { \ | |
796 | return set_pwm_auto_pwm_min(dev, buf, count, offset - 1); \ | |
797 | } \ | |
8627f9ba | 798 | static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
799 | char *buf) \ |
800 | { \ | |
801 | return show_pwm_auto_pwm_minctl(dev, buf, offset - 1); \ | |
802 | } \ | |
8627f9ba | 803 | static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
804 | const char *buf, size_t count) \ |
805 | { \ | |
806 | return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1); \ | |
807 | } \ | |
8627f9ba | 808 | static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
809 | char *buf) \ |
810 | { \ | |
811 | return show_pwm_auto_pwm_freq(dev, buf, offset - 1); \ | |
812 | } \ | |
8627f9ba | 813 | static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
814 | const char *buf, size_t count) \ |
815 | { \ | |
816 | return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1); \ | |
817 | } \ | |
818 | static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR, \ | |
819 | show_pwm##offset##_auto_channels, \ | |
820 | set_pwm##offset##_auto_channels); \ | |
821 | static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR, \ | |
822 | show_pwm##offset##_auto_pwm_min, \ | |
823 | set_pwm##offset##_auto_pwm_min); \ | |
824 | static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR, \ | |
825 | show_pwm##offset##_auto_pwm_minctl, \ | |
826 | set_pwm##offset##_auto_pwm_minctl); \ | |
827 | static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR, \ | |
828 | show_pwm##offset##_auto_pwm_freq, \ | |
829 | set_pwm##offset##_auto_pwm_freq); | |
830 | pwm_auto(1); | |
831 | pwm_auto(2); | |
832 | pwm_auto(3); | |
833 | ||
834 | /* Temperature settings for automatic PWM control */ | |
835 | ||
836 | static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr) | |
837 | { | |
838 | struct lm85_data *data = lm85_update_device(dev); | |
839 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) - | |
840 | HYST_FROM_REG(data->zone[nr].hyst)); | |
841 | } | |
842 | static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf, | |
843 | size_t count, int nr) | |
844 | { | |
845 | struct i2c_client *client = to_i2c_client(dev); | |
846 | struct lm85_data *data = i2c_get_clientdata(client); | |
847 | int min; | |
848 | long val = simple_strtol(buf, NULL, 10); | |
849 | ||
850 | down(&data->update_lock); | |
851 | min = TEMP_FROM_REG(data->zone[nr].limit); | |
852 | data->zone[nr].off_desired = TEMP_TO_REG(val); | |
853 | data->zone[nr].hyst = HYST_TO_REG(min - val); | |
854 | if ( nr == 0 || nr == 1 ) { | |
855 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
856 | (data->zone[0].hyst << 4) | |
857 | | data->zone[1].hyst | |
858 | ); | |
859 | } else { | |
860 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
861 | (data->zone[2].hyst << 4) | |
862 | ); | |
863 | } | |
864 | up(&data->update_lock); | |
865 | return count; | |
866 | } | |
867 | static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr) | |
868 | { | |
869 | struct lm85_data *data = lm85_update_device(dev); | |
870 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) ); | |
871 | } | |
872 | static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf, | |
873 | size_t count, int nr) | |
874 | { | |
875 | struct i2c_client *client = to_i2c_client(dev); | |
876 | struct lm85_data *data = i2c_get_clientdata(client); | |
877 | long val = simple_strtol(buf, NULL, 10); | |
878 | ||
879 | down(&data->update_lock); | |
880 | data->zone[nr].limit = TEMP_TO_REG(val); | |
881 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), | |
882 | data->zone[nr].limit); | |
883 | ||
884 | /* Update temp_auto_max and temp_auto_range */ | |
885 | data->zone[nr].range = RANGE_TO_REG( | |
886 | TEMP_FROM_REG(data->zone[nr].max_desired) - | |
887 | TEMP_FROM_REG(data->zone[nr].limit)); | |
888 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
889 | ((data->zone[nr].range & 0x0f) << 4) | |
890 | | (data->autofan[nr].freq & 0x07)); | |
891 | ||
892 | /* Update temp_auto_hyst and temp_auto_off */ | |
893 | data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG( | |
894 | data->zone[nr].limit) - TEMP_FROM_REG( | |
895 | data->zone[nr].off_desired)); | |
896 | if ( nr == 0 || nr == 1 ) { | |
897 | lm85_write_value(client, LM85_REG_AFAN_HYST1, | |
898 | (data->zone[0].hyst << 4) | |
899 | | data->zone[1].hyst | |
900 | ); | |
901 | } else { | |
902 | lm85_write_value(client, LM85_REG_AFAN_HYST2, | |
903 | (data->zone[2].hyst << 4) | |
904 | ); | |
905 | } | |
906 | up(&data->update_lock); | |
907 | return count; | |
908 | } | |
909 | static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr) | |
910 | { | |
911 | struct lm85_data *data = lm85_update_device(dev); | |
912 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) + | |
913 | RANGE_FROM_REG(data->zone[nr].range)); | |
914 | } | |
915 | static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf, | |
916 | size_t count, int nr) | |
917 | { | |
918 | struct i2c_client *client = to_i2c_client(dev); | |
919 | struct lm85_data *data = i2c_get_clientdata(client); | |
920 | int min; | |
921 | long val = simple_strtol(buf, NULL, 10); | |
922 | ||
923 | down(&data->update_lock); | |
924 | min = TEMP_FROM_REG(data->zone[nr].limit); | |
925 | data->zone[nr].max_desired = TEMP_TO_REG(val); | |
926 | data->zone[nr].range = RANGE_TO_REG( | |
927 | val - min); | |
928 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), | |
929 | ((data->zone[nr].range & 0x0f) << 4) | |
930 | | (data->autofan[nr].freq & 0x07)); | |
931 | up(&data->update_lock); | |
932 | return count; | |
933 | } | |
934 | static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr) | |
935 | { | |
936 | struct lm85_data *data = lm85_update_device(dev); | |
937 | return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical)); | |
938 | } | |
939 | static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf, | |
940 | size_t count, int nr) | |
941 | { | |
942 | struct i2c_client *client = to_i2c_client(dev); | |
943 | struct lm85_data *data = i2c_get_clientdata(client); | |
944 | long val = simple_strtol(buf, NULL, 10); | |
945 | ||
946 | down(&data->update_lock); | |
947 | data->zone[nr].critical = TEMP_TO_REG(val); | |
948 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), | |
949 | data->zone[nr].critical); | |
950 | up(&data->update_lock); | |
951 | return count; | |
952 | } | |
953 | #define temp_auto(offset) \ | |
8627f9ba | 954 | static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
955 | char *buf) \ |
956 | { \ | |
957 | return show_temp_auto_temp_off(dev, buf, offset - 1); \ | |
958 | } \ | |
8627f9ba | 959 | static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
960 | const char *buf, size_t count) \ |
961 | { \ | |
962 | return set_temp_auto_temp_off(dev, buf, count, offset - 1); \ | |
963 | } \ | |
8627f9ba | 964 | static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
965 | char *buf) \ |
966 | { \ | |
967 | return show_temp_auto_temp_min(dev, buf, offset - 1); \ | |
968 | } \ | |
8627f9ba | 969 | static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
970 | const char *buf, size_t count) \ |
971 | { \ | |
972 | return set_temp_auto_temp_min(dev, buf, count, offset - 1); \ | |
973 | } \ | |
8627f9ba | 974 | static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
975 | char *buf) \ |
976 | { \ | |
977 | return show_temp_auto_temp_max(dev, buf, offset - 1); \ | |
978 | } \ | |
8627f9ba | 979 | static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
980 | const char *buf, size_t count) \ |
981 | { \ | |
982 | return set_temp_auto_temp_max(dev, buf, count, offset - 1); \ | |
983 | } \ | |
8627f9ba | 984 | static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
985 | char *buf) \ |
986 | { \ | |
987 | return show_temp_auto_temp_crit(dev, buf, offset - 1); \ | |
988 | } \ | |
8627f9ba | 989 | static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
990 | const char *buf, size_t count) \ |
991 | { \ | |
992 | return set_temp_auto_temp_crit(dev, buf, count, offset - 1); \ | |
993 | } \ | |
994 | static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR, \ | |
995 | show_temp##offset##_auto_temp_off, \ | |
996 | set_temp##offset##_auto_temp_off); \ | |
997 | static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR, \ | |
998 | show_temp##offset##_auto_temp_min, \ | |
999 | set_temp##offset##_auto_temp_min); \ | |
1000 | static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR, \ | |
1001 | show_temp##offset##_auto_temp_max, \ | |
1002 | set_temp##offset##_auto_temp_max); \ | |
1003 | static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR, \ | |
1004 | show_temp##offset##_auto_temp_crit, \ | |
1005 | set_temp##offset##_auto_temp_crit); | |
1006 | temp_auto(1); | |
1007 | temp_auto(2); | |
1008 | temp_auto(3); | |
1009 | ||
d8d20615 | 1010 | static int lm85_attach_adapter(struct i2c_adapter *adapter) |
1da177e4 LT |
1011 | { |
1012 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
1013 | return 0; | |
2ed2dc3c | 1014 | return i2c_probe(adapter, &addr_data, lm85_detect); |
1da177e4 LT |
1015 | } |
1016 | ||
d8d20615 | 1017 | static int lm85_detect(struct i2c_adapter *adapter, int address, |
1da177e4 LT |
1018 | int kind) |
1019 | { | |
1020 | int company, verstep ; | |
1021 | struct i2c_client *new_client = NULL; | |
1022 | struct lm85_data *data; | |
1023 | int err = 0; | |
1024 | const char *type_name = ""; | |
1025 | ||
1da177e4 LT |
1026 | if (!i2c_check_functionality(adapter, |
1027 | I2C_FUNC_SMBUS_BYTE_DATA)) { | |
1028 | /* We need to be able to do byte I/O */ | |
1029 | goto ERROR0 ; | |
1030 | }; | |
1031 | ||
1032 | /* OK. For now, we presume we have a valid client. We now create the | |
1033 | client structure, even though we cannot fill it completely yet. | |
1034 | But it allows us to access lm85_{read,write}_value. */ | |
1035 | ||
ba9c2e8d | 1036 | if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) { |
1da177e4 LT |
1037 | err = -ENOMEM; |
1038 | goto ERROR0; | |
1039 | } | |
1da177e4 LT |
1040 | |
1041 | new_client = &data->client; | |
1042 | i2c_set_clientdata(new_client, data); | |
1043 | new_client->addr = address; | |
1044 | new_client->adapter = adapter; | |
1045 | new_client->driver = &lm85_driver; | |
1046 | new_client->flags = 0; | |
1047 | ||
1048 | /* Now, we do the remaining detection. */ | |
1049 | ||
1050 | company = lm85_read_value(new_client, LM85_REG_COMPANY); | |
1051 | verstep = lm85_read_value(new_client, LM85_REG_VERSTEP); | |
1052 | ||
1053 | dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" | |
1054 | " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", | |
1055 | i2c_adapter_id(new_client->adapter), new_client->addr, | |
1056 | company, verstep); | |
1057 | ||
1058 | /* If auto-detecting, Determine the chip type. */ | |
1059 | if (kind <= 0) { | |
1060 | dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n", | |
1061 | i2c_adapter_id(adapter), address ); | |
1062 | if( company == LM85_COMPANY_NATIONAL | |
1063 | && verstep == LM85_VERSTEP_LM85C ) { | |
1064 | kind = lm85c ; | |
1065 | } else if( company == LM85_COMPANY_NATIONAL | |
1066 | && verstep == LM85_VERSTEP_LM85B ) { | |
1067 | kind = lm85b ; | |
1068 | } else if( company == LM85_COMPANY_NATIONAL | |
1069 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1070 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1071 | " Defaulting to LM85.\n", verstep); | |
1072 | kind = any_chip ; | |
1073 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1074 | && verstep == LM85_VERSTEP_ADM1027 ) { | |
1075 | kind = adm1027 ; | |
1076 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1077 | && (verstep == LM85_VERSTEP_ADT7463 | |
1078 | || verstep == LM85_VERSTEP_ADT7463C) ) { | |
1079 | kind = adt7463 ; | |
1080 | } else if( company == LM85_COMPANY_ANALOG_DEV | |
1081 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) { | |
1082 | dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x" | |
1083 | " Defaulting to Generic LM85.\n", verstep ); | |
1084 | kind = any_chip ; | |
1085 | } else if( company == LM85_COMPANY_SMSC | |
1086 | && (verstep == LM85_VERSTEP_EMC6D100_A0 | |
1087 | || verstep == LM85_VERSTEP_EMC6D100_A1) ) { | |
1088 | /* Unfortunately, we can't tell a '100 from a '101 | |
1089 | * from the registers. Since a '101 is a '100 | |
1090 | * in a package with fewer pins and therefore no | |
1091 | * 3.3V, 1.5V or 1.8V inputs, perhaps if those | |
1092 | * inputs read 0, then it's a '101. | |
1093 | */ | |
1094 | kind = emc6d100 ; | |
1095 | } else if( company == LM85_COMPANY_SMSC | |
1096 | && verstep == LM85_VERSTEP_EMC6D102) { | |
1097 | kind = emc6d102 ; | |
1098 | } else if( company == LM85_COMPANY_SMSC | |
1099 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1100 | dev_err(&adapter->dev, "lm85: Detected SMSC chip\n"); | |
1101 | dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x" | |
1102 | " Defaulting to Generic LM85.\n", verstep ); | |
1103 | kind = any_chip ; | |
1104 | } else if( kind == any_chip | |
1105 | && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) { | |
1106 | dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n"); | |
1107 | /* Leave kind as "any_chip" */ | |
1108 | } else { | |
1109 | dev_dbg(&adapter->dev, "Autodetection failed\n"); | |
1110 | /* Not an LM85 ... */ | |
1111 | if( kind == any_chip ) { /* User used force=x,y */ | |
1112 | dev_err(&adapter->dev, "Generic LM85 Version 6 not" | |
1113 | " found at %d,0x%02x. Try force_lm85c.\n", | |
1114 | i2c_adapter_id(adapter), address ); | |
1115 | } | |
1116 | err = 0 ; | |
1117 | goto ERROR1; | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | /* Fill in the chip specific driver values */ | |
1122 | if ( kind == any_chip ) { | |
1123 | type_name = "lm85"; | |
1124 | } else if ( kind == lm85b ) { | |
1125 | type_name = "lm85b"; | |
1126 | } else if ( kind == lm85c ) { | |
1127 | type_name = "lm85c"; | |
1128 | } else if ( kind == adm1027 ) { | |
1129 | type_name = "adm1027"; | |
1130 | } else if ( kind == adt7463 ) { | |
1131 | type_name = "adt7463"; | |
1132 | } else if ( kind == emc6d100){ | |
1133 | type_name = "emc6d100"; | |
1134 | } else if ( kind == emc6d102 ) { | |
1135 | type_name = "emc6d102"; | |
1136 | } | |
1137 | strlcpy(new_client->name, type_name, I2C_NAME_SIZE); | |
1138 | ||
1139 | /* Fill in the remaining client fields */ | |
1140 | data->type = kind; | |
1141 | data->valid = 0; | |
1142 | init_MUTEX(&data->update_lock); | |
1143 | ||
1144 | /* Tell the I2C layer a new client has arrived */ | |
1145 | if ((err = i2c_attach_client(new_client))) | |
1146 | goto ERROR1; | |
1147 | ||
1148 | /* Set the VRM version */ | |
303760b4 | 1149 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
1150 | |
1151 | /* Initialize the LM85 chip */ | |
1152 | lm85_init_client(new_client); | |
1153 | ||
1154 | /* Register sysfs hooks */ | |
943b0830 MH |
1155 | data->class_dev = hwmon_device_register(&new_client->dev); |
1156 | if (IS_ERR(data->class_dev)) { | |
1157 | err = PTR_ERR(data->class_dev); | |
1158 | goto ERROR2; | |
1159 | } | |
1160 | ||
1da177e4 LT |
1161 | device_create_file(&new_client->dev, &dev_attr_fan1_input); |
1162 | device_create_file(&new_client->dev, &dev_attr_fan2_input); | |
1163 | device_create_file(&new_client->dev, &dev_attr_fan3_input); | |
1164 | device_create_file(&new_client->dev, &dev_attr_fan4_input); | |
1165 | device_create_file(&new_client->dev, &dev_attr_fan1_min); | |
1166 | device_create_file(&new_client->dev, &dev_attr_fan2_min); | |
1167 | device_create_file(&new_client->dev, &dev_attr_fan3_min); | |
1168 | device_create_file(&new_client->dev, &dev_attr_fan4_min); | |
1169 | device_create_file(&new_client->dev, &dev_attr_pwm1); | |
1170 | device_create_file(&new_client->dev, &dev_attr_pwm2); | |
1171 | device_create_file(&new_client->dev, &dev_attr_pwm3); | |
1172 | device_create_file(&new_client->dev, &dev_attr_pwm1_enable); | |
1173 | device_create_file(&new_client->dev, &dev_attr_pwm2_enable); | |
1174 | device_create_file(&new_client->dev, &dev_attr_pwm3_enable); | |
1175 | device_create_file(&new_client->dev, &dev_attr_in0_input); | |
1176 | device_create_file(&new_client->dev, &dev_attr_in1_input); | |
1177 | device_create_file(&new_client->dev, &dev_attr_in2_input); | |
1178 | device_create_file(&new_client->dev, &dev_attr_in3_input); | |
1179 | device_create_file(&new_client->dev, &dev_attr_in4_input); | |
1180 | device_create_file(&new_client->dev, &dev_attr_in0_min); | |
1181 | device_create_file(&new_client->dev, &dev_attr_in1_min); | |
1182 | device_create_file(&new_client->dev, &dev_attr_in2_min); | |
1183 | device_create_file(&new_client->dev, &dev_attr_in3_min); | |
1184 | device_create_file(&new_client->dev, &dev_attr_in4_min); | |
1185 | device_create_file(&new_client->dev, &dev_attr_in0_max); | |
1186 | device_create_file(&new_client->dev, &dev_attr_in1_max); | |
1187 | device_create_file(&new_client->dev, &dev_attr_in2_max); | |
1188 | device_create_file(&new_client->dev, &dev_attr_in3_max); | |
1189 | device_create_file(&new_client->dev, &dev_attr_in4_max); | |
1190 | device_create_file(&new_client->dev, &dev_attr_temp1_input); | |
1191 | device_create_file(&new_client->dev, &dev_attr_temp2_input); | |
1192 | device_create_file(&new_client->dev, &dev_attr_temp3_input); | |
1193 | device_create_file(&new_client->dev, &dev_attr_temp1_min); | |
1194 | device_create_file(&new_client->dev, &dev_attr_temp2_min); | |
1195 | device_create_file(&new_client->dev, &dev_attr_temp3_min); | |
1196 | device_create_file(&new_client->dev, &dev_attr_temp1_max); | |
1197 | device_create_file(&new_client->dev, &dev_attr_temp2_max); | |
1198 | device_create_file(&new_client->dev, &dev_attr_temp3_max); | |
1199 | device_create_file(&new_client->dev, &dev_attr_vrm); | |
1200 | device_create_file(&new_client->dev, &dev_attr_cpu0_vid); | |
1201 | device_create_file(&new_client->dev, &dev_attr_alarms); | |
1202 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels); | |
1203 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels); | |
1204 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels); | |
1205 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min); | |
1206 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min); | |
1207 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min); | |
1208 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl); | |
1209 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl); | |
1210 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl); | |
1211 | device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq); | |
1212 | device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq); | |
1213 | device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq); | |
1214 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off); | |
1215 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off); | |
1216 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off); | |
1217 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min); | |
1218 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min); | |
1219 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min); | |
1220 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max); | |
1221 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max); | |
1222 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max); | |
1223 | device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit); | |
1224 | device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit); | |
1225 | device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit); | |
1226 | ||
1227 | return 0; | |
1228 | ||
1229 | /* Error out and cleanup code */ | |
943b0830 MH |
1230 | ERROR2: |
1231 | i2c_detach_client(new_client); | |
1da177e4 LT |
1232 | ERROR1: |
1233 | kfree(data); | |
1234 | ERROR0: | |
1235 | return err; | |
1236 | } | |
1237 | ||
d8d20615 | 1238 | static int lm85_detach_client(struct i2c_client *client) |
1da177e4 | 1239 | { |
943b0830 MH |
1240 | struct lm85_data *data = i2c_get_clientdata(client); |
1241 | hwmon_device_unregister(data->class_dev); | |
1da177e4 | 1242 | i2c_detach_client(client); |
943b0830 | 1243 | kfree(data); |
1da177e4 LT |
1244 | return 0; |
1245 | } | |
1246 | ||
1247 | ||
d8d20615 | 1248 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
1da177e4 LT |
1249 | { |
1250 | int res; | |
1251 | ||
1252 | /* What size location is it? */ | |
1253 | switch( reg ) { | |
1254 | case LM85_REG_FAN(0) : /* Read WORD data */ | |
1255 | case LM85_REG_FAN(1) : | |
1256 | case LM85_REG_FAN(2) : | |
1257 | case LM85_REG_FAN(3) : | |
1258 | case LM85_REG_FAN_MIN(0) : | |
1259 | case LM85_REG_FAN_MIN(1) : | |
1260 | case LM85_REG_FAN_MIN(2) : | |
1261 | case LM85_REG_FAN_MIN(3) : | |
1262 | case LM85_REG_ALARM1 : /* Read both bytes at once */ | |
1263 | res = i2c_smbus_read_byte_data(client, reg) & 0xff ; | |
1264 | res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ; | |
1265 | break ; | |
1266 | case ADT7463_REG_TMIN_CTL1 : /* Read WORD MSB, LSB */ | |
1267 | res = i2c_smbus_read_byte_data(client, reg) << 8 ; | |
1268 | res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ; | |
1269 | break ; | |
1270 | default: /* Read BYTE data */ | |
1271 | res = i2c_smbus_read_byte_data(client, reg); | |
1272 | break ; | |
1273 | } | |
1274 | ||
1275 | return res ; | |
1276 | } | |
1277 | ||
d8d20615 | 1278 | static int lm85_write_value(struct i2c_client *client, u8 reg, int value) |
1da177e4 LT |
1279 | { |
1280 | int res ; | |
1281 | ||
1282 | switch( reg ) { | |
1283 | case LM85_REG_FAN(0) : /* Write WORD data */ | |
1284 | case LM85_REG_FAN(1) : | |
1285 | case LM85_REG_FAN(2) : | |
1286 | case LM85_REG_FAN(3) : | |
1287 | case LM85_REG_FAN_MIN(0) : | |
1288 | case LM85_REG_FAN_MIN(1) : | |
1289 | case LM85_REG_FAN_MIN(2) : | |
1290 | case LM85_REG_FAN_MIN(3) : | |
1291 | /* NOTE: ALARM is read only, so not included here */ | |
1292 | res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ; | |
1293 | res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ; | |
1294 | break ; | |
1295 | case ADT7463_REG_TMIN_CTL1 : /* Write WORD MSB, LSB */ | |
1296 | res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff); | |
1297 | res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ; | |
1298 | break ; | |
1299 | default: /* Write BYTE data */ | |
1300 | res = i2c_smbus_write_byte_data(client, reg, value); | |
1301 | break ; | |
1302 | } | |
1303 | ||
1304 | return res ; | |
1305 | } | |
1306 | ||
d8d20615 | 1307 | static void lm85_init_client(struct i2c_client *client) |
1da177e4 LT |
1308 | { |
1309 | int value; | |
1310 | struct lm85_data *data = i2c_get_clientdata(client); | |
1311 | ||
1312 | dev_dbg(&client->dev, "Initializing device\n"); | |
1313 | ||
1314 | /* Warn if part was not "READY" */ | |
1315 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1316 | dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value); | |
1317 | if( value & 0x02 ) { | |
1318 | dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n", | |
1319 | i2c_adapter_id(client->adapter), client->addr ); | |
1320 | }; | |
1321 | if( ! (value & 0x04) ) { | |
1322 | dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n", | |
1323 | i2c_adapter_id(client->adapter), client->addr ); | |
1324 | }; | |
1325 | if( value & 0x10 | |
1326 | && ( data->type == adm1027 | |
1327 | || data->type == adt7463 ) ) { | |
1328 | dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set. " | |
1329 | "Please report this to the lm85 maintainer.\n", | |
1330 | i2c_adapter_id(client->adapter), client->addr ); | |
1331 | }; | |
1332 | ||
1333 | /* WE INTENTIONALLY make no changes to the limits, | |
1334 | * offsets, pwms, fans and zones. If they were | |
1335 | * configured, we don't want to mess with them. | |
1336 | * If they weren't, the default is 100% PWM, no | |
1337 | * control and will suffice until 'sensors -s' | |
1338 | * can be run by the user. | |
1339 | */ | |
1340 | ||
1341 | /* Start monitoring */ | |
1342 | value = lm85_read_value(client, LM85_REG_CONFIG); | |
1343 | /* Try to clear LOCK, Set START, save everything else */ | |
1344 | value = (value & ~ 0x02) | 0x01 ; | |
1345 | dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); | |
1346 | lm85_write_value(client, LM85_REG_CONFIG, value); | |
1347 | } | |
1348 | ||
1349 | static struct lm85_data *lm85_update_device(struct device *dev) | |
1350 | { | |
1351 | struct i2c_client *client = to_i2c_client(dev); | |
1352 | struct lm85_data *data = i2c_get_clientdata(client); | |
1353 | int i; | |
1354 | ||
1355 | down(&data->update_lock); | |
1356 | ||
1357 | if ( !data->valid || | |
1358 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) { | |
1359 | /* Things that change quickly */ | |
1360 | dev_dbg(&client->dev, "Reading sensor values\n"); | |
1361 | ||
1362 | /* Have to read extended bits first to "freeze" the | |
1363 | * more significant bits that are read later. | |
1364 | */ | |
1365 | if ( (data->type == adm1027) || (data->type == adt7463) ) { | |
1366 | int ext1 = lm85_read_value(client, | |
1367 | ADM1027_REG_EXTEND_ADC1); | |
1368 | int ext2 = lm85_read_value(client, | |
1369 | ADM1027_REG_EXTEND_ADC2); | |
1370 | int val = (ext1 << 8) + ext2; | |
1371 | ||
1372 | for(i = 0; i <= 4; i++) | |
1373 | data->in_ext[i] = (val>>(i * 2))&0x03; | |
1374 | ||
1375 | for(i = 0; i <= 2; i++) | |
1376 | data->temp_ext[i] = (val>>((i + 5) * 2))&0x03; | |
1377 | } | |
1378 | ||
1379 | /* adc_scale is 2^(number of LSBs). There are 4 extra bits in | |
1380 | the emc6d102 and 2 in the adt7463 and adm1027. In all | |
1381 | other chips ext is always 0 and the value of scale is | |
1382 | irrelevant. So it is left in 4*/ | |
1383 | data->adc_scale = (data->type == emc6d102 ) ? 16 : 4; | |
1384 | ||
1385 | for (i = 0; i <= 4; ++i) { | |
1386 | data->in[i] = | |
1387 | lm85_read_value(client, LM85_REG_IN(i)); | |
1388 | } | |
1389 | ||
1390 | for (i = 0; i <= 3; ++i) { | |
1391 | data->fan[i] = | |
1392 | lm85_read_value(client, LM85_REG_FAN(i)); | |
1393 | } | |
1394 | ||
1395 | for (i = 0; i <= 2; ++i) { | |
1396 | data->temp[i] = | |
1397 | lm85_read_value(client, LM85_REG_TEMP(i)); | |
1398 | } | |
1399 | ||
1400 | for (i = 0; i <= 2; ++i) { | |
1401 | data->pwm[i] = | |
1402 | lm85_read_value(client, LM85_REG_PWM(i)); | |
1403 | } | |
1404 | ||
1405 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); | |
1406 | ||
1407 | if ( data->type == adt7463 ) { | |
1408 | if( data->therm_total < ULONG_MAX - 256 ) { | |
1409 | data->therm_total += | |
1410 | lm85_read_value(client, ADT7463_REG_THERM ); | |
1411 | } | |
1412 | } else if ( data->type == emc6d100 ) { | |
1413 | /* Three more voltage sensors */ | |
1414 | for (i = 5; i <= 7; ++i) { | |
1415 | data->in[i] = | |
1416 | lm85_read_value(client, EMC6D100_REG_IN(i)); | |
1417 | } | |
1418 | /* More alarm bits */ | |
1419 | data->alarms |= | |
1420 | lm85_read_value(client, EMC6D100_REG_ALARM3) << 16; | |
1421 | } else if (data->type == emc6d102 ) { | |
1422 | /* Have to read LSB bits after the MSB ones because | |
1423 | the reading of the MSB bits has frozen the | |
1424 | LSBs (backward from the ADM1027). | |
1425 | */ | |
1426 | int ext1 = lm85_read_value(client, | |
1427 | EMC6D102_REG_EXTEND_ADC1); | |
1428 | int ext2 = lm85_read_value(client, | |
1429 | EMC6D102_REG_EXTEND_ADC2); | |
1430 | int ext3 = lm85_read_value(client, | |
1431 | EMC6D102_REG_EXTEND_ADC3); | |
1432 | int ext4 = lm85_read_value(client, | |
1433 | EMC6D102_REG_EXTEND_ADC4); | |
1434 | data->in_ext[0] = ext3 & 0x0f; | |
1435 | data->in_ext[1] = ext4 & 0x0f; | |
1436 | data->in_ext[2] = (ext4 >> 4) & 0x0f; | |
1437 | data->in_ext[3] = (ext3 >> 4) & 0x0f; | |
1438 | data->in_ext[4] = (ext2 >> 4) & 0x0f; | |
1439 | ||
1440 | data->temp_ext[0] = ext1 & 0x0f; | |
1441 | data->temp_ext[1] = ext2 & 0x0f; | |
1442 | data->temp_ext[2] = (ext1 >> 4) & 0x0f; | |
1443 | } | |
1444 | ||
1445 | data->last_reading = jiffies ; | |
1446 | }; /* last_reading */ | |
1447 | ||
1448 | if ( !data->valid || | |
1449 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) { | |
1450 | /* Things that don't change often */ | |
1451 | dev_dbg(&client->dev, "Reading config values\n"); | |
1452 | ||
1453 | for (i = 0; i <= 4; ++i) { | |
1454 | data->in_min[i] = | |
1455 | lm85_read_value(client, LM85_REG_IN_MIN(i)); | |
1456 | data->in_max[i] = | |
1457 | lm85_read_value(client, LM85_REG_IN_MAX(i)); | |
1458 | } | |
1459 | ||
1460 | if ( data->type == emc6d100 ) { | |
1461 | for (i = 5; i <= 7; ++i) { | |
1462 | data->in_min[i] = | |
1463 | lm85_read_value(client, EMC6D100_REG_IN_MIN(i)); | |
1464 | data->in_max[i] = | |
1465 | lm85_read_value(client, EMC6D100_REG_IN_MAX(i)); | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | for (i = 0; i <= 3; ++i) { | |
1470 | data->fan_min[i] = | |
1471 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); | |
1472 | } | |
1473 | ||
1474 | for (i = 0; i <= 2; ++i) { | |
1475 | data->temp_min[i] = | |
1476 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); | |
1477 | data->temp_max[i] = | |
1478 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); | |
1479 | } | |
1480 | ||
1481 | data->vid = lm85_read_value(client, LM85_REG_VID); | |
1482 | ||
1483 | for (i = 0; i <= 2; ++i) { | |
1484 | int val ; | |
1485 | data->autofan[i].config = | |
1486 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); | |
1487 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); | |
1488 | data->autofan[i].freq = val & 0x07 ; | |
1489 | data->zone[i].range = (val >> 4) & 0x0f ; | |
1490 | data->autofan[i].min_pwm = | |
1491 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); | |
1492 | data->zone[i].limit = | |
1493 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); | |
1494 | data->zone[i].critical = | |
1495 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); | |
1496 | } | |
1497 | ||
1498 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); | |
1499 | data->smooth[0] = i & 0x0f ; | |
1500 | data->syncpwm3 = i & 0x10 ; /* Save PWM3 config */ | |
1501 | data->autofan[0].min_off = (i & 0x20) != 0 ; | |
1502 | data->autofan[1].min_off = (i & 0x40) != 0 ; | |
1503 | data->autofan[2].min_off = (i & 0x80) != 0 ; | |
1504 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2); | |
1505 | data->smooth[1] = (i>>4) & 0x0f ; | |
1506 | data->smooth[2] = i & 0x0f ; | |
1507 | ||
1508 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); | |
1509 | data->zone[0].hyst = (i>>4) & 0x0f ; | |
1510 | data->zone[1].hyst = i & 0x0f ; | |
1511 | ||
1512 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); | |
1513 | data->zone[2].hyst = (i>>4) & 0x0f ; | |
1514 | ||
1515 | if ( (data->type == lm85b) || (data->type == lm85c) ) { | |
1516 | data->tach_mode = lm85_read_value(client, | |
1517 | LM85_REG_TACH_MODE ); | |
1518 | data->spinup_ctl = lm85_read_value(client, | |
1519 | LM85_REG_SPINUP_CTL ); | |
1520 | } else if ( (data->type == adt7463) || (data->type == adm1027) ) { | |
1521 | if ( data->type == adt7463 ) { | |
1522 | for (i = 0; i <= 2; ++i) { | |
1523 | data->oppoint[i] = lm85_read_value(client, | |
1524 | ADT7463_REG_OPPOINT(i) ); | |
1525 | } | |
1526 | data->tmin_ctl = lm85_read_value(client, | |
1527 | ADT7463_REG_TMIN_CTL1 ); | |
1528 | data->therm_limit = lm85_read_value(client, | |
1529 | ADT7463_REG_THERM_LIMIT ); | |
1530 | } | |
1531 | for (i = 0; i <= 2; ++i) { | |
1532 | data->temp_offset[i] = lm85_read_value(client, | |
1533 | ADM1027_REG_TEMP_OFFSET(i) ); | |
1534 | } | |
1535 | data->tach_mode = lm85_read_value(client, | |
1536 | ADM1027_REG_CONFIG3 ); | |
1537 | data->fan_ppr = lm85_read_value(client, | |
1538 | ADM1027_REG_FAN_PPR ); | |
1539 | } | |
1540 | ||
1541 | data->last_config = jiffies; | |
1542 | }; /* last_config */ | |
1543 | ||
1544 | data->valid = 1; | |
1545 | ||
1546 | up(&data->update_lock); | |
1547 | ||
1548 | return data; | |
1549 | } | |
1550 | ||
1551 | ||
1552 | static int __init sm_lm85_init(void) | |
1553 | { | |
1554 | return i2c_add_driver(&lm85_driver); | |
1555 | } | |
1556 | ||
1557 | static void __exit sm_lm85_exit(void) | |
1558 | { | |
1559 | i2c_del_driver(&lm85_driver); | |
1560 | } | |
1561 | ||
1562 | /* Thanks to Richard Barrington for adding the LM85 to sensors-detect. | |
1563 | * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with | |
1564 | * post 2.7.0 CVS changes. | |
1565 | */ | |
1566 | MODULE_LICENSE("GPL"); | |
1567 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com"); | |
1568 | MODULE_DESCRIPTION("LM85-B, LM85-C driver"); | |
1569 | ||
1570 | module_init(sm_lm85_init); | |
1571 | module_exit(sm_lm85_exit); |