1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * lm85.c - Part of lm_sensors, Linux kernel modules for hardware |
4 | * monitoring |
5 | * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> |
6 | * Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> |
7 | * Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de> |
8 | * Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com> |
9 | * Copyright (C) 2007--2014 Jean Delvare <jdelvare@suse.de> |
10 | * |
11 | * Chip details at <http://www.national.com/ds/LM/LM85.pdf> |
12 | */ |
13 | |
14 | #include <linux/module.h> |
15 | #include <linux/of.h> |
16 | #include <linux/init.h> |
17 | #include <linux/slab.h> |
18 | #include <linux/jiffies.h> |
19 | #include <linux/i2c.h> |
20 | #include <linux/hwmon.h> |
21 | #include <linux/hwmon-vid.h> |
22 | #include <linux/hwmon-sysfs.h> |
23 | #include <linux/err.h> |
24 | #include <linux/mutex.h> |
25 | #include <linux/util_macros.h> |
26 | |
27 | /* Addresses to scan */ |
28 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
29 | |
30 | enum chips { |
31 | lm85, lm96000, |
32 | adm1027, adt7463, adt7468, |
33 | emc6d100, emc6d102, emc6d103, emc6d103s |
34 | }; |
35 | |
36 | /* The LM85 registers */ |
37 | |
38 | #define LM85_REG_IN(nr) (0x20 + (nr)) |
39 | #define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2) |
40 | #define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2) |
41 | |
42 | #define LM85_REG_TEMP(nr) (0x25 + (nr)) |
43 | #define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2) |
44 | #define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2) |
45 | |
46 | /* Fan speeds are LSB, MSB (2 bytes) */ |
47 | #define LM85_REG_FAN(nr) (0x28 + (nr) * 2) |
48 | #define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2) |
49 | |
50 | #define LM85_REG_PWM(nr) (0x30 + (nr)) |
51 | |
52 | #define LM85_REG_COMPANY 0x3e |
53 | #define LM85_REG_VERSTEP 0x3f |
54 | |
55 | #define ADT7468_REG_CFG5 0x7c |
56 | #define ADT7468_OFF64 (1 << 0) |
57 | #define ADT7468_HFPWM (1 << 1) |
58 | #define IS_ADT7468_OFF64(data) \ |
59 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64)) |
60 | #define IS_ADT7468_HFPWM(data) \ |
61 | ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM)) |
62 | |
63 | /* These are the recognized values for the above regs */ |
64 | #define LM85_COMPANY_NATIONAL 0x01 |
65 | #define LM85_COMPANY_ANALOG_DEV 0x41 |
66 | #define LM85_COMPANY_SMSC 0x5c |
67 | #define LM85_VERSTEP_LM85C 0x60 |
68 | #define LM85_VERSTEP_LM85B 0x62 |
69 | #define LM85_VERSTEP_LM96000_1 0x68 |
70 | #define LM85_VERSTEP_LM96000_2 0x69 |
71 | #define LM85_VERSTEP_ADM1027 0x60 |
72 | #define LM85_VERSTEP_ADT7463 0x62 |
73 | #define LM85_VERSTEP_ADT7463C 0x6A |
74 | #define LM85_VERSTEP_ADT7468_1 0x71 |
75 | #define LM85_VERSTEP_ADT7468_2 0x72 |
76 | #define LM85_VERSTEP_EMC6D100_A0 0x60 |
77 | #define LM85_VERSTEP_EMC6D100_A1 0x61 |
78 | #define LM85_VERSTEP_EMC6D102 0x65 |
79 | #define LM85_VERSTEP_EMC6D103_A0 0x68 |
80 | #define LM85_VERSTEP_EMC6D103_A1 0x69 |
81 | #define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */ |
82 | |
83 | #define LM85_REG_CONFIG 0x40 |
84 | |
85 | #define LM85_REG_ALARM1 0x41 |
86 | #define LM85_REG_ALARM2 0x42 |
87 | |
88 | #define LM85_REG_VID 0x43 |
89 | |
90 | /* Automated FAN control */ |
91 | #define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr)) |
92 | #define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr)) |
93 | #define LM85_REG_AFAN_SPIKE1 0x62 |
94 | #define LM85_REG_AFAN_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 ADM1027_REG_EXTEND_ADC1 0x76 |
101 | #define ADM1027_REG_EXTEND_ADC2 0x77 |
102 | |
103 | #define EMC6D100_REG_ALARM3 0x7d |
104 | /* IN5, IN6 and IN7 */ |
105 | #define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5)) |
106 | #define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2) |
107 | #define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2) |
108 | #define EMC6D102_REG_EXTEND_ADC1 0x85 |
109 | #define EMC6D102_REG_EXTEND_ADC2 0x86 |
110 | #define EMC6D102_REG_EXTEND_ADC3 0x87 |
111 | #define EMC6D102_REG_EXTEND_ADC4 0x88 |
112 | |
113 | /* |
114 | * Conversions. Rounding and limit checking is only done on the TO_REG |
115 | * variants. Note that you should be a bit careful with which arguments |
116 | * these macros are called: arguments may be evaluated more than once. |
117 | */ |
118 | |
119 | /* IN are scaled according to built-in resistors */ |
120 | static const int lm85_scaling[] = { /* .001 Volts */ |
121 | 2500, 2250, 3300, 5000, 12000, |
122 | 3300, 1500, 1800 /*EMC6D100*/ |
123 | }; |
124 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) |
125 | |
126 | #define INS_TO_REG(n, val) \ |
127 | SCALE(clamp_val(val, 0, 255 * lm85_scaling[n] / 192), \ |
128 | lm85_scaling[n], 192) |
129 | |
130 | #define INSEXT_FROM_REG(n, val, ext) \ |
131 | SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n]) |
132 | |
133 | #define INS_FROM_REG(n, val) SCALE((val), 192, lm85_scaling[n]) |
134 | |
135 | /* FAN speed is measured using 90kHz clock */ |
136 | static inline u16 FAN_TO_REG(unsigned long val) |
137 | { |
138 | if (!val) |
139 | return 0xffff; |
140 | return clamp_val(5400000 / val, 1, 0xfffe); |
141 | } |
142 | #define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \ |
143 | 5400000 / (val)) |
144 | |
145 | /* Temperature is reported in .001 degC increments */ |
146 | #define TEMP_TO_REG(val) \ |
147 | DIV_ROUND_CLOSEST(clamp_val((val), -127000, 127000), 1000) |
148 | #define TEMPEXT_FROM_REG(val, ext) \ |
149 | SCALE(((val) << 4) + (ext), 16, 1000) |
150 | #define TEMP_FROM_REG(val) ((val) * 1000) |
151 | |
152 | #define PWM_TO_REG(val) clamp_val(val, 0, 255) |
153 | #define PWM_FROM_REG(val) (val) |
154 | |
155 | /* |
156 | * ZONEs have the following parameters: |
157 | * Limit (low) temp, 1. degC |
158 | * Hysteresis (below limit), 1. degC (0-15) |
159 | * Range of speed control, .1 degC (2-80) |
160 | * Critical (high) temp, 1. degC |
161 | * |
162 | * FAN PWMs have the following parameters: |
163 | * Reference Zone, 1, 2, 3, etc. |
164 | * Spinup time, .05 sec |
165 | * PWM value at limit/low temp, 1 count |
166 | * PWM Frequency, 1. Hz |
167 | * PWM is Min or OFF below limit, flag |
168 | * Invert PWM output, flag |
169 | * |
170 | * Some chips filter the temp, others the fan. |
171 | * Filter constant (or disabled) .1 seconds |
172 | */ |
173 | |
174 | /* These are the zone temperature range encodings in .001 degree C */ |
175 | static const int lm85_range_map[] = { |
176 | 2000, 2500, 3300, 4000, 5000, 6600, 8000, 10000, |
177 | 13300, 16000, 20000, 26600, 32000, 40000, 53300, 80000 |
178 | }; |
179 | |
180 | static int RANGE_TO_REG(long range) |
181 | { |
182 | return find_closest(range, lm85_range_map, ARRAY_SIZE(lm85_range_map)); |
183 | } |
184 | #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] |
185 | |
186 | /* These are the PWM frequency encodings */ |
187 | static const int lm85_freq_map[] = { /* 1 Hz */ |
188 | 10, 15, 23, 30, 38, 47, 61, 94 |
189 | }; |
190 | |
191 | static const int lm96000_freq_map[] = { /* 1 Hz */ |
192 | 10, 15, 23, 30, 38, 47, 61, 94, |
193 | 22500, 24000, 25700, 25700, 27700, 27700, 30000, 30000 |
194 | }; |
195 | |
196 | static const int adm1027_freq_map[] = { /* 1 Hz */ |
197 | 11, 15, 22, 29, 35, 44, 59, 88 |
198 | }; |
199 | |
200 | static int FREQ_TO_REG(const int *map, |
201 | unsigned int map_size, unsigned long freq) |
202 | { |
203 | return find_closest(freq, map, map_size); |
204 | } |
205 | |
206 | static int FREQ_FROM_REG(const int *map, unsigned int map_size, u8 reg) |
207 | { |
208 | return map[reg % map_size]; |
209 | } |
210 | |
211 | /* |
212 | * Since we can't use strings, I'm abusing these numbers |
213 | * to stand in for the following meanings: |
214 | * 1 -- PWM responds to Zone 1 |
215 | * 2 -- PWM responds to Zone 2 |
216 | * 3 -- PWM responds to Zone 3 |
217 | * 23 -- PWM responds to the higher temp of Zone 2 or 3 |
218 | * 123 -- PWM responds to highest of Zone 1, 2, or 3 |
219 | * 0 -- PWM is always at 0% (ie, off) |
220 | * -1 -- PWM is always at 100% |
221 | * -2 -- PWM responds to manual control |
222 | */ |
223 | |
224 | static const int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 }; |
225 | #define ZONE_FROM_REG(val) lm85_zone_map[(val) >> 5] |
226 | |
227 | static int ZONE_TO_REG(int zone) |
228 | { |
229 | int i; |
230 | |
231 | for (i = 0; i <= 7; ++i) |
232 | if (zone == lm85_zone_map[i]) |
233 | break; |
234 | if (i > 7) /* Not found. */ |
235 | i = 3; /* Always 100% */ |
236 | return i << 5; |
237 | } |
238 | |
239 | #define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15) |
240 | #define HYST_FROM_REG(val) ((val) * 1000) |
241 | |
242 | /* |
243 | * Chip sampling rates |
244 | * |
245 | * Some sensors are not updated more frequently than once per second |
246 | * so it doesn't make sense to read them more often than that. |
247 | * We cache the results and return the saved data if the driver |
248 | * is called again before a second has elapsed. |
249 | * |
250 | * Also, there is significant configuration data for this chip |
251 | * given the automatic PWM fan control that is possible. There |
252 | * are about 47 bytes of config data to only 22 bytes of actual |
253 | * readings. So, we keep the config data up to date in the cache |
254 | * when it is written and only sample it once every 1 *minute* |
255 | */ |
256 | #define LM85_DATA_INTERVAL (HZ + HZ / 2) |
257 | #define LM85_CONFIG_INTERVAL (1 * 60 * HZ) |
258 | |
259 | /* |
260 | * LM85 can automatically adjust fan speeds based on temperature |
261 | * This structure encapsulates an entire Zone config. There are |
262 | * three zones (one for each temperature input) on the lm85 |
263 | */ |
264 | struct lm85_zone { |
265 | s8 limit; /* Low temp limit */ |
266 | u8 hyst; /* Low limit hysteresis. (0-15) */ |
267 | u8 range; /* Temp range, encoded */ |
268 | s8 critical; /* "All fans ON" temp limit */ |
269 | u8 max_desired; /* |
270 | * Actual "max" temperature specified. Preserved |
271 | * to prevent "drift" as other autofan control |
272 | * values change. |
273 | */ |
274 | }; |
275 | |
276 | struct lm85_autofan { |
277 | u8 config; /* Register value */ |
278 | u8 min_pwm; /* Minimum PWM value, encoded */ |
279 | u8 min_off; /* Min PWM or OFF below "limit", flag */ |
280 | }; |
281 | |
282 | /* |
283 | * For each registered chip, we need to keep some data in memory. |
284 | * The structure is dynamically allocated. |
285 | */ |
286 | struct lm85_data { |
287 | struct i2c_client *client; |
288 | const struct attribute_group *groups[6]; |
289 | const int *freq_map; |
290 | unsigned int freq_map_size; |
291 | |
292 | enum chips type; |
293 | |
294 | bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ |
295 | |
296 | struct mutex update_lock; |
297 | bool valid; /* true if following fields are valid */ |
298 | unsigned long last_reading; /* In jiffies */ |
299 | unsigned long last_config; /* In jiffies */ |
300 | |
301 | u8 in[8]; /* Register value */ |
302 | u8 in_max[8]; /* Register value */ |
303 | u8 in_min[8]; /* Register value */ |
304 | s8 temp[3]; /* Register value */ |
305 | s8 temp_min[3]; /* Register value */ |
306 | s8 temp_max[3]; /* Register value */ |
307 | u16 fan[4]; /* Register value */ |
308 | u16 fan_min[4]; /* Register value */ |
309 | u8 pwm[3]; /* Register value */ |
310 | u8 pwm_freq[3]; /* Register encoding */ |
311 | u8 temp_ext[3]; /* Decoded values */ |
312 | u8 in_ext[8]; /* Decoded values */ |
313 | u8 vid; /* Register value */ |
314 | u8 vrm; /* VRM version */ |
315 | u32 alarms; /* Register encoding, combined */ |
316 | u8 cfg5; /* Config Register 5 on ADT7468 */ |
317 | struct lm85_autofan autofan[3]; |
318 | struct lm85_zone zone[3]; |
319 | }; |
320 | |
321 | static int lm85_read_value(struct i2c_client *client, u8 reg) |
322 | { |
323 | int res; |
324 | |
325 | /* What size location is it? */ |
326 | switch (reg) { |
327 | case LM85_REG_FAN(0): /* Read WORD data */ |
328 | case LM85_REG_FAN(1): |
329 | case LM85_REG_FAN(2): |
330 | case LM85_REG_FAN(3): |
331 | case LM85_REG_FAN_MIN(0): |
332 | case LM85_REG_FAN_MIN(1): |
333 | case LM85_REG_FAN_MIN(2): |
334 | case LM85_REG_FAN_MIN(3): |
335 | case LM85_REG_ALARM1: /* Read both bytes at once */ |
336 | res = i2c_smbus_read_byte_data(client, command: reg) & 0xff; |
337 | res |= i2c_smbus_read_byte_data(client, command: reg + 1) << 8; |
338 | break; |
339 | default: /* Read BYTE data */ |
340 | res = i2c_smbus_read_byte_data(client, command: reg); |
341 | break; |
342 | } |
343 | |
344 | return res; |
345 | } |
346 | |
347 | static void lm85_write_value(struct i2c_client *client, u8 reg, int value) |
348 | { |
349 | switch (reg) { |
350 | case LM85_REG_FAN(0): /* Write WORD data */ |
351 | case LM85_REG_FAN(1): |
352 | case LM85_REG_FAN(2): |
353 | case LM85_REG_FAN(3): |
354 | case LM85_REG_FAN_MIN(0): |
355 | case LM85_REG_FAN_MIN(1): |
356 | case LM85_REG_FAN_MIN(2): |
357 | case LM85_REG_FAN_MIN(3): |
358 | /* NOTE: ALARM is read only, so not included here */ |
359 | i2c_smbus_write_byte_data(client, command: reg, value: value & 0xff); |
360 | i2c_smbus_write_byte_data(client, command: reg + 1, value: value >> 8); |
361 | break; |
362 | default: /* Write BYTE data */ |
363 | i2c_smbus_write_byte_data(client, command: reg, value); |
364 | break; |
365 | } |
366 | } |
367 | |
368 | static struct lm85_data *lm85_update_device(struct device *dev) |
369 | { |
370 | struct lm85_data *data = dev_get_drvdata(dev); |
371 | struct i2c_client *client = data->client; |
372 | int i; |
373 | |
374 | mutex_lock(&data->update_lock); |
375 | |
376 | if (!data->valid || |
377 | time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) { |
378 | /* Things that change quickly */ |
379 | dev_dbg(&client->dev, "Reading sensor values\n" ); |
380 | |
381 | /* |
382 | * Have to read extended bits first to "freeze" the |
383 | * more significant bits that are read later. |
384 | * There are 2 additional resolution bits per channel and we |
385 | * have room for 4, so we shift them to the left. |
386 | */ |
387 | if (data->type == adm1027 || data->type == adt7463 || |
388 | data->type == adt7468) { |
389 | int ext1 = lm85_read_value(client, |
390 | ADM1027_REG_EXTEND_ADC1); |
391 | int ext2 = lm85_read_value(client, |
392 | ADM1027_REG_EXTEND_ADC2); |
393 | int val = (ext1 << 8) + ext2; |
394 | |
395 | for (i = 0; i <= 4; i++) |
396 | data->in_ext[i] = |
397 | ((val >> (i * 2)) & 0x03) << 2; |
398 | |
399 | for (i = 0; i <= 2; i++) |
400 | data->temp_ext[i] = |
401 | (val >> ((i + 4) * 2)) & 0x0c; |
402 | } |
403 | |
404 | data->vid = lm85_read_value(client, LM85_REG_VID); |
405 | |
406 | for (i = 0; i <= 3; ++i) { |
407 | data->in[i] = |
408 | lm85_read_value(client, LM85_REG_IN(i)); |
409 | data->fan[i] = |
410 | lm85_read_value(client, LM85_REG_FAN(i)); |
411 | } |
412 | |
413 | if (!data->has_vid5) |
414 | data->in[4] = lm85_read_value(client, LM85_REG_IN(4)); |
415 | |
416 | if (data->type == adt7468) |
417 | data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5); |
418 | |
419 | for (i = 0; i <= 2; ++i) { |
420 | data->temp[i] = |
421 | lm85_read_value(client, LM85_REG_TEMP(i)); |
422 | data->pwm[i] = |
423 | lm85_read_value(client, LM85_REG_PWM(i)); |
424 | |
425 | if (IS_ADT7468_OFF64(data)) |
426 | data->temp[i] -= 64; |
427 | } |
428 | |
429 | data->alarms = lm85_read_value(client, LM85_REG_ALARM1); |
430 | |
431 | if (data->type == emc6d100) { |
432 | /* Three more voltage sensors */ |
433 | for (i = 5; i <= 7; ++i) { |
434 | data->in[i] = lm85_read_value(client, |
435 | EMC6D100_REG_IN(i)); |
436 | } |
437 | /* More alarm bits */ |
438 | data->alarms |= lm85_read_value(client, |
439 | EMC6D100_REG_ALARM3) << 16; |
440 | } else if (data->type == emc6d102 || data->type == emc6d103 || |
441 | data->type == emc6d103s) { |
442 | /* |
443 | * Have to read LSB bits after the MSB ones because |
444 | * the reading of the MSB bits has frozen the |
445 | * LSBs (backward from the ADM1027). |
446 | */ |
447 | int ext1 = lm85_read_value(client, |
448 | EMC6D102_REG_EXTEND_ADC1); |
449 | int ext2 = lm85_read_value(client, |
450 | EMC6D102_REG_EXTEND_ADC2); |
451 | int ext3 = lm85_read_value(client, |
452 | EMC6D102_REG_EXTEND_ADC3); |
453 | int ext4 = lm85_read_value(client, |
454 | EMC6D102_REG_EXTEND_ADC4); |
455 | data->in_ext[0] = ext3 & 0x0f; |
456 | data->in_ext[1] = ext4 & 0x0f; |
457 | data->in_ext[2] = ext4 >> 4; |
458 | data->in_ext[3] = ext3 >> 4; |
459 | data->in_ext[4] = ext2 >> 4; |
460 | |
461 | data->temp_ext[0] = ext1 & 0x0f; |
462 | data->temp_ext[1] = ext2 & 0x0f; |
463 | data->temp_ext[2] = ext1 >> 4; |
464 | } |
465 | |
466 | data->last_reading = jiffies; |
467 | } /* last_reading */ |
468 | |
469 | if (!data->valid || |
470 | time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) { |
471 | /* Things that don't change often */ |
472 | dev_dbg(&client->dev, "Reading config values\n" ); |
473 | |
474 | for (i = 0; i <= 3; ++i) { |
475 | data->in_min[i] = |
476 | lm85_read_value(client, LM85_REG_IN_MIN(i)); |
477 | data->in_max[i] = |
478 | lm85_read_value(client, LM85_REG_IN_MAX(i)); |
479 | data->fan_min[i] = |
480 | lm85_read_value(client, LM85_REG_FAN_MIN(i)); |
481 | } |
482 | |
483 | if (!data->has_vid5) { |
484 | data->in_min[4] = lm85_read_value(client, |
485 | LM85_REG_IN_MIN(4)); |
486 | data->in_max[4] = lm85_read_value(client, |
487 | LM85_REG_IN_MAX(4)); |
488 | } |
489 | |
490 | if (data->type == emc6d100) { |
491 | for (i = 5; i <= 7; ++i) { |
492 | data->in_min[i] = lm85_read_value(client, |
493 | EMC6D100_REG_IN_MIN(i)); |
494 | data->in_max[i] = lm85_read_value(client, |
495 | EMC6D100_REG_IN_MAX(i)); |
496 | } |
497 | } |
498 | |
499 | for (i = 0; i <= 2; ++i) { |
500 | int val; |
501 | |
502 | data->temp_min[i] = |
503 | lm85_read_value(client, LM85_REG_TEMP_MIN(i)); |
504 | data->temp_max[i] = |
505 | lm85_read_value(client, LM85_REG_TEMP_MAX(i)); |
506 | |
507 | data->autofan[i].config = |
508 | lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); |
509 | val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); |
510 | data->pwm_freq[i] = val % data->freq_map_size; |
511 | data->zone[i].range = val >> 4; |
512 | data->autofan[i].min_pwm = |
513 | lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); |
514 | data->zone[i].limit = |
515 | lm85_read_value(client, LM85_REG_AFAN_LIMIT(i)); |
516 | data->zone[i].critical = |
517 | lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i)); |
518 | |
519 | if (IS_ADT7468_OFF64(data)) { |
520 | data->temp_min[i] -= 64; |
521 | data->temp_max[i] -= 64; |
522 | data->zone[i].limit -= 64; |
523 | data->zone[i].critical -= 64; |
524 | } |
525 | } |
526 | |
527 | if (data->type != emc6d103s) { |
528 | i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
529 | data->autofan[0].min_off = (i & 0x20) != 0; |
530 | data->autofan[1].min_off = (i & 0x40) != 0; |
531 | data->autofan[2].min_off = (i & 0x80) != 0; |
532 | |
533 | i = lm85_read_value(client, LM85_REG_AFAN_HYST1); |
534 | data->zone[0].hyst = i >> 4; |
535 | data->zone[1].hyst = i & 0x0f; |
536 | |
537 | i = lm85_read_value(client, LM85_REG_AFAN_HYST2); |
538 | data->zone[2].hyst = i >> 4; |
539 | } |
540 | |
541 | data->last_config = jiffies; |
542 | } /* last_config */ |
543 | |
544 | data->valid = true; |
545 | |
546 | mutex_unlock(lock: &data->update_lock); |
547 | |
548 | return data; |
549 | } |
550 | |
551 | /* 4 Fans */ |
552 | static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
553 | char *buf) |
554 | { |
555 | int nr = to_sensor_dev_attr(attr)->index; |
556 | struct lm85_data *data = lm85_update_device(dev); |
557 | return sprintf(buf, fmt: "%d\n" , FAN_FROM_REG(data->fan[nr])); |
558 | } |
559 | |
560 | static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, |
561 | char *buf) |
562 | { |
563 | int nr = to_sensor_dev_attr(attr)->index; |
564 | struct lm85_data *data = lm85_update_device(dev); |
565 | return sprintf(buf, fmt: "%d\n" , FAN_FROM_REG(data->fan_min[nr])); |
566 | } |
567 | |
568 | static ssize_t fan_min_store(struct device *dev, |
569 | struct device_attribute *attr, const char *buf, |
570 | size_t count) |
571 | { |
572 | int nr = to_sensor_dev_attr(attr)->index; |
573 | struct lm85_data *data = dev_get_drvdata(dev); |
574 | struct i2c_client *client = data->client; |
575 | unsigned long val; |
576 | int err; |
577 | |
578 | err = kstrtoul(s: buf, base: 10, res: &val); |
579 | if (err) |
580 | return err; |
581 | |
582 | mutex_lock(&data->update_lock); |
583 | data->fan_min[nr] = FAN_TO_REG(val); |
584 | lm85_write_value(client, LM85_REG_FAN_MIN(nr), value: data->fan_min[nr]); |
585 | mutex_unlock(lock: &data->update_lock); |
586 | return count; |
587 | } |
588 | |
589 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
590 | static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); |
591 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); |
592 | static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); |
593 | static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); |
594 | static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); |
595 | static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); |
596 | static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3); |
597 | |
598 | /* vid, vrm, alarms */ |
599 | |
600 | static ssize_t cpu0_vid_show(struct device *dev, |
601 | struct device_attribute *attr, char *buf) |
602 | { |
603 | struct lm85_data *data = lm85_update_device(dev); |
604 | int vid; |
605 | |
606 | if (data->has_vid5) { |
607 | /* 6-pin VID (VRM 10) */ |
608 | vid = vid_from_reg(val: data->vid & 0x3f, vrm: data->vrm); |
609 | } else { |
610 | /* 5-pin VID (VRM 9) */ |
611 | vid = vid_from_reg(val: data->vid & 0x1f, vrm: data->vrm); |
612 | } |
613 | |
614 | return sprintf(buf, fmt: "%d\n" , vid); |
615 | } |
616 | |
617 | static DEVICE_ATTR_RO(cpu0_vid); |
618 | |
619 | static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, |
620 | char *buf) |
621 | { |
622 | struct lm85_data *data = dev_get_drvdata(dev); |
623 | return sprintf(buf, fmt: "%ld\n" , (long) data->vrm); |
624 | } |
625 | |
626 | static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, |
627 | const char *buf, size_t count) |
628 | { |
629 | struct lm85_data *data = dev_get_drvdata(dev); |
630 | unsigned long val; |
631 | int err; |
632 | |
633 | err = kstrtoul(s: buf, base: 10, res: &val); |
634 | if (err) |
635 | return err; |
636 | |
637 | if (val > 255) |
638 | return -EINVAL; |
639 | |
640 | data->vrm = val; |
641 | return count; |
642 | } |
643 | |
644 | static DEVICE_ATTR_RW(vrm); |
645 | |
646 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
647 | char *buf) |
648 | { |
649 | struct lm85_data *data = lm85_update_device(dev); |
650 | return sprintf(buf, fmt: "%u\n" , data->alarms); |
651 | } |
652 | |
653 | static DEVICE_ATTR_RO(alarms); |
654 | |
655 | static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, |
656 | char *buf) |
657 | { |
658 | int nr = to_sensor_dev_attr(attr)->index; |
659 | struct lm85_data *data = lm85_update_device(dev); |
660 | return sprintf(buf, fmt: "%u\n" , (data->alarms >> nr) & 1); |
661 | } |
662 | |
663 | static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0); |
664 | static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1); |
665 | static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2); |
666 | static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3); |
667 | static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8); |
668 | static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 18); |
669 | static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 16); |
670 | static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 17); |
671 | static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4); |
672 | static SENSOR_DEVICE_ATTR_RO(temp1_fault, alarm, 14); |
673 | static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 5); |
674 | static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 6); |
675 | static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 15); |
676 | static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 10); |
677 | static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 11); |
678 | static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 12); |
679 | static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, 13); |
680 | |
681 | /* pwm */ |
682 | |
683 | static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
684 | char *buf) |
685 | { |
686 | int nr = to_sensor_dev_attr(attr)->index; |
687 | struct lm85_data *data = lm85_update_device(dev); |
688 | return sprintf(buf, fmt: "%d\n" , PWM_FROM_REG(data->pwm[nr])); |
689 | } |
690 | |
691 | static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
692 | const char *buf, size_t count) |
693 | { |
694 | int nr = to_sensor_dev_attr(attr)->index; |
695 | struct lm85_data *data = dev_get_drvdata(dev); |
696 | struct i2c_client *client = data->client; |
697 | unsigned long val; |
698 | int err; |
699 | |
700 | err = kstrtoul(s: buf, base: 10, res: &val); |
701 | if (err) |
702 | return err; |
703 | |
704 | mutex_lock(&data->update_lock); |
705 | data->pwm[nr] = PWM_TO_REG(val); |
706 | lm85_write_value(client, LM85_REG_PWM(nr), value: data->pwm[nr]); |
707 | mutex_unlock(lock: &data->update_lock); |
708 | return count; |
709 | } |
710 | |
711 | static ssize_t pwm_enable_show(struct device *dev, |
712 | struct device_attribute *attr, char *buf) |
713 | { |
714 | int nr = to_sensor_dev_attr(attr)->index; |
715 | struct lm85_data *data = lm85_update_device(dev); |
716 | int pwm_zone, enable; |
717 | |
718 | pwm_zone = ZONE_FROM_REG(data->autofan[nr].config); |
719 | switch (pwm_zone) { |
720 | case -1: /* PWM is always at 100% */ |
721 | enable = 0; |
722 | break; |
723 | case 0: /* PWM is always at 0% */ |
724 | case -2: /* PWM responds to manual control */ |
725 | enable = 1; |
726 | break; |
727 | default: /* PWM in automatic mode */ |
728 | enable = 2; |
729 | } |
730 | return sprintf(buf, fmt: "%d\n" , enable); |
731 | } |
732 | |
733 | static ssize_t pwm_enable_store(struct device *dev, |
734 | struct device_attribute *attr, |
735 | const char *buf, size_t count) |
736 | { |
737 | int nr = to_sensor_dev_attr(attr)->index; |
738 | struct lm85_data *data = dev_get_drvdata(dev); |
739 | struct i2c_client *client = data->client; |
740 | u8 config; |
741 | unsigned long val; |
742 | int err; |
743 | |
744 | err = kstrtoul(s: buf, base: 10, res: &val); |
745 | if (err) |
746 | return err; |
747 | |
748 | switch (val) { |
749 | case 0: |
750 | config = 3; |
751 | break; |
752 | case 1: |
753 | config = 7; |
754 | break; |
755 | case 2: |
756 | /* |
757 | * Here we have to choose arbitrarily one of the 5 possible |
758 | * configurations; I go for the safest |
759 | */ |
760 | config = 6; |
761 | break; |
762 | default: |
763 | return -EINVAL; |
764 | } |
765 | |
766 | mutex_lock(&data->update_lock); |
767 | data->autofan[nr].config = lm85_read_value(client, |
768 | LM85_REG_AFAN_CONFIG(nr)); |
769 | data->autofan[nr].config = (data->autofan[nr].config & ~0xe0) |
770 | | (config << 5); |
771 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
772 | value: data->autofan[nr].config); |
773 | mutex_unlock(lock: &data->update_lock); |
774 | return count; |
775 | } |
776 | |
777 | static ssize_t pwm_freq_show(struct device *dev, |
778 | struct device_attribute *attr, char *buf) |
779 | { |
780 | int nr = to_sensor_dev_attr(attr)->index; |
781 | struct lm85_data *data = lm85_update_device(dev); |
782 | int freq; |
783 | |
784 | if (IS_ADT7468_HFPWM(data)) |
785 | freq = 22500; |
786 | else |
787 | freq = FREQ_FROM_REG(map: data->freq_map, map_size: data->freq_map_size, |
788 | reg: data->pwm_freq[nr]); |
789 | |
790 | return sprintf(buf, fmt: "%d\n" , freq); |
791 | } |
792 | |
793 | static ssize_t pwm_freq_store(struct device *dev, |
794 | struct device_attribute *attr, const char *buf, |
795 | size_t count) |
796 | { |
797 | int nr = to_sensor_dev_attr(attr)->index; |
798 | struct lm85_data *data = dev_get_drvdata(dev); |
799 | struct i2c_client *client = data->client; |
800 | unsigned long val; |
801 | int err; |
802 | |
803 | err = kstrtoul(s: buf, base: 10, res: &val); |
804 | if (err) |
805 | return err; |
806 | |
807 | mutex_lock(&data->update_lock); |
808 | /* |
809 | * The ADT7468 has a special high-frequency PWM output mode, |
810 | * where all PWM outputs are driven by a 22.5 kHz clock. |
811 | * This might confuse the user, but there's not much we can do. |
812 | */ |
813 | if (data->type == adt7468 && val >= 11300) { /* High freq. mode */ |
814 | data->cfg5 &= ~ADT7468_HFPWM; |
815 | lm85_write_value(client, ADT7468_REG_CFG5, value: data->cfg5); |
816 | } else { /* Low freq. mode */ |
817 | data->pwm_freq[nr] = FREQ_TO_REG(map: data->freq_map, |
818 | map_size: data->freq_map_size, freq: val); |
819 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
820 | value: (data->zone[nr].range << 4) |
821 | | data->pwm_freq[nr]); |
822 | if (data->type == adt7468) { |
823 | data->cfg5 |= ADT7468_HFPWM; |
824 | lm85_write_value(client, ADT7468_REG_CFG5, value: data->cfg5); |
825 | } |
826 | } |
827 | mutex_unlock(lock: &data->update_lock); |
828 | return count; |
829 | } |
830 | |
831 | static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); |
832 | static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0); |
833 | static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0); |
834 | static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); |
835 | static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1); |
836 | static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1); |
837 | static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2); |
838 | static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_enable, 2); |
839 | static SENSOR_DEVICE_ATTR_RW(pwm3_freq, pwm_freq, 2); |
840 | |
841 | /* Voltages */ |
842 | |
843 | static ssize_t in_show(struct device *dev, struct device_attribute *attr, |
844 | char *buf) |
845 | { |
846 | int nr = to_sensor_dev_attr(attr)->index; |
847 | struct lm85_data *data = lm85_update_device(dev); |
848 | return sprintf(buf, fmt: "%d\n" , INSEXT_FROM_REG(nr, data->in[nr], |
849 | data->in_ext[nr])); |
850 | } |
851 | |
852 | static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, |
853 | char *buf) |
854 | { |
855 | int nr = to_sensor_dev_attr(attr)->index; |
856 | struct lm85_data *data = lm85_update_device(dev); |
857 | return sprintf(buf, fmt: "%d\n" , INS_FROM_REG(nr, data->in_min[nr])); |
858 | } |
859 | |
860 | static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, |
861 | const char *buf, size_t count) |
862 | { |
863 | int nr = to_sensor_dev_attr(attr)->index; |
864 | struct lm85_data *data = dev_get_drvdata(dev); |
865 | struct i2c_client *client = data->client; |
866 | long val; |
867 | int err; |
868 | |
869 | err = kstrtol(s: buf, base: 10, res: &val); |
870 | if (err) |
871 | return err; |
872 | |
873 | mutex_lock(&data->update_lock); |
874 | data->in_min[nr] = INS_TO_REG(nr, val); |
875 | lm85_write_value(client, LM85_REG_IN_MIN(nr), value: data->in_min[nr]); |
876 | mutex_unlock(lock: &data->update_lock); |
877 | return count; |
878 | } |
879 | |
880 | static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, |
881 | char *buf) |
882 | { |
883 | int nr = to_sensor_dev_attr(attr)->index; |
884 | struct lm85_data *data = lm85_update_device(dev); |
885 | return sprintf(buf, fmt: "%d\n" , INS_FROM_REG(nr, data->in_max[nr])); |
886 | } |
887 | |
888 | static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, |
889 | const char *buf, size_t count) |
890 | { |
891 | int nr = to_sensor_dev_attr(attr)->index; |
892 | struct lm85_data *data = dev_get_drvdata(dev); |
893 | struct i2c_client *client = data->client; |
894 | long val; |
895 | int err; |
896 | |
897 | err = kstrtol(s: buf, base: 10, res: &val); |
898 | if (err) |
899 | return err; |
900 | |
901 | mutex_lock(&data->update_lock); |
902 | data->in_max[nr] = INS_TO_REG(nr, val); |
903 | lm85_write_value(client, LM85_REG_IN_MAX(nr), value: data->in_max[nr]); |
904 | mutex_unlock(lock: &data->update_lock); |
905 | return count; |
906 | } |
907 | |
908 | static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); |
909 | static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); |
910 | static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); |
911 | static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); |
912 | static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); |
913 | static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); |
914 | static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); |
915 | static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); |
916 | static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); |
917 | static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); |
918 | static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); |
919 | static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); |
920 | static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); |
921 | static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); |
922 | static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); |
923 | static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5); |
924 | static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5); |
925 | static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5); |
926 | static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6); |
927 | static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6); |
928 | static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6); |
929 | static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7); |
930 | static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7); |
931 | static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7); |
932 | |
933 | /* Temps */ |
934 | |
935 | static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
936 | char *buf) |
937 | { |
938 | int nr = to_sensor_dev_attr(attr)->index; |
939 | struct lm85_data *data = lm85_update_device(dev); |
940 | return sprintf(buf, fmt: "%d\n" , TEMPEXT_FROM_REG(data->temp[nr], |
941 | data->temp_ext[nr])); |
942 | } |
943 | |
944 | static ssize_t temp_min_show(struct device *dev, |
945 | struct device_attribute *attr, char *buf) |
946 | { |
947 | int nr = to_sensor_dev_attr(attr)->index; |
948 | struct lm85_data *data = lm85_update_device(dev); |
949 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->temp_min[nr])); |
950 | } |
951 | |
952 | static ssize_t temp_min_store(struct device *dev, |
953 | struct device_attribute *attr, const char *buf, |
954 | size_t count) |
955 | { |
956 | int nr = to_sensor_dev_attr(attr)->index; |
957 | struct lm85_data *data = dev_get_drvdata(dev); |
958 | struct i2c_client *client = data->client; |
959 | long val; |
960 | int err; |
961 | |
962 | err = kstrtol(s: buf, base: 10, res: &val); |
963 | if (err) |
964 | return err; |
965 | |
966 | if (IS_ADT7468_OFF64(data)) |
967 | val += 64; |
968 | |
969 | mutex_lock(&data->update_lock); |
970 | data->temp_min[nr] = TEMP_TO_REG(val); |
971 | lm85_write_value(client, LM85_REG_TEMP_MIN(nr), value: data->temp_min[nr]); |
972 | mutex_unlock(lock: &data->update_lock); |
973 | return count; |
974 | } |
975 | |
976 | static ssize_t temp_max_show(struct device *dev, |
977 | struct device_attribute *attr, char *buf) |
978 | { |
979 | int nr = to_sensor_dev_attr(attr)->index; |
980 | struct lm85_data *data = lm85_update_device(dev); |
981 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->temp_max[nr])); |
982 | } |
983 | |
984 | static ssize_t temp_max_store(struct device *dev, |
985 | struct device_attribute *attr, const char *buf, |
986 | size_t count) |
987 | { |
988 | int nr = to_sensor_dev_attr(attr)->index; |
989 | struct lm85_data *data = dev_get_drvdata(dev); |
990 | struct i2c_client *client = data->client; |
991 | long val; |
992 | int err; |
993 | |
994 | err = kstrtol(s: buf, base: 10, res: &val); |
995 | if (err) |
996 | return err; |
997 | |
998 | if (IS_ADT7468_OFF64(data)) |
999 | val += 64; |
1000 | |
1001 | mutex_lock(&data->update_lock); |
1002 | data->temp_max[nr] = TEMP_TO_REG(val); |
1003 | lm85_write_value(client, LM85_REG_TEMP_MAX(nr), value: data->temp_max[nr]); |
1004 | mutex_unlock(lock: &data->update_lock); |
1005 | return count; |
1006 | } |
1007 | |
1008 | static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
1009 | static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); |
1010 | static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); |
1011 | static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); |
1012 | static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); |
1013 | static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); |
1014 | static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); |
1015 | static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); |
1016 | static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); |
1017 | |
1018 | /* Automatic PWM control */ |
1019 | |
1020 | static ssize_t pwm_auto_channels_show(struct device *dev, |
1021 | struct device_attribute *attr, |
1022 | char *buf) |
1023 | { |
1024 | int nr = to_sensor_dev_attr(attr)->index; |
1025 | struct lm85_data *data = lm85_update_device(dev); |
1026 | return sprintf(buf, fmt: "%d\n" , ZONE_FROM_REG(data->autofan[nr].config)); |
1027 | } |
1028 | |
1029 | static ssize_t pwm_auto_channels_store(struct device *dev, |
1030 | struct device_attribute *attr, |
1031 | const char *buf, size_t count) |
1032 | { |
1033 | int nr = to_sensor_dev_attr(attr)->index; |
1034 | struct lm85_data *data = dev_get_drvdata(dev); |
1035 | struct i2c_client *client = data->client; |
1036 | long val; |
1037 | int err; |
1038 | |
1039 | err = kstrtol(s: buf, base: 10, res: &val); |
1040 | if (err) |
1041 | return err; |
1042 | |
1043 | mutex_lock(&data->update_lock); |
1044 | data->autofan[nr].config = (data->autofan[nr].config & (~0xe0)) |
1045 | | ZONE_TO_REG(zone: val); |
1046 | lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr), |
1047 | value: data->autofan[nr].config); |
1048 | mutex_unlock(lock: &data->update_lock); |
1049 | return count; |
1050 | } |
1051 | |
1052 | static ssize_t pwm_auto_pwm_min_show(struct device *dev, |
1053 | struct device_attribute *attr, char *buf) |
1054 | { |
1055 | int nr = to_sensor_dev_attr(attr)->index; |
1056 | struct lm85_data *data = lm85_update_device(dev); |
1057 | return sprintf(buf, fmt: "%d\n" , PWM_FROM_REG(data->autofan[nr].min_pwm)); |
1058 | } |
1059 | |
1060 | static ssize_t pwm_auto_pwm_min_store(struct device *dev, |
1061 | struct device_attribute *attr, |
1062 | const char *buf, size_t count) |
1063 | { |
1064 | int nr = to_sensor_dev_attr(attr)->index; |
1065 | struct lm85_data *data = dev_get_drvdata(dev); |
1066 | struct i2c_client *client = data->client; |
1067 | unsigned long val; |
1068 | int err; |
1069 | |
1070 | err = kstrtoul(s: buf, base: 10, res: &val); |
1071 | if (err) |
1072 | return err; |
1073 | |
1074 | mutex_lock(&data->update_lock); |
1075 | data->autofan[nr].min_pwm = PWM_TO_REG(val); |
1076 | lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr), |
1077 | value: data->autofan[nr].min_pwm); |
1078 | mutex_unlock(lock: &data->update_lock); |
1079 | return count; |
1080 | } |
1081 | |
1082 | static ssize_t pwm_auto_pwm_minctl_show(struct device *dev, |
1083 | struct device_attribute *attr, |
1084 | char *buf) |
1085 | { |
1086 | int nr = to_sensor_dev_attr(attr)->index; |
1087 | struct lm85_data *data = lm85_update_device(dev); |
1088 | return sprintf(buf, fmt: "%d\n" , data->autofan[nr].min_off); |
1089 | } |
1090 | |
1091 | static ssize_t pwm_auto_pwm_minctl_store(struct device *dev, |
1092 | struct device_attribute *attr, |
1093 | const char *buf, size_t count) |
1094 | { |
1095 | int nr = to_sensor_dev_attr(attr)->index; |
1096 | struct lm85_data *data = dev_get_drvdata(dev); |
1097 | struct i2c_client *client = data->client; |
1098 | u8 tmp; |
1099 | long val; |
1100 | int err; |
1101 | |
1102 | err = kstrtol(s: buf, base: 10, res: &val); |
1103 | if (err) |
1104 | return err; |
1105 | |
1106 | mutex_lock(&data->update_lock); |
1107 | data->autofan[nr].min_off = val; |
1108 | tmp = lm85_read_value(client, LM85_REG_AFAN_SPIKE1); |
1109 | tmp &= ~(0x20 << nr); |
1110 | if (data->autofan[nr].min_off) |
1111 | tmp |= 0x20 << nr; |
1112 | lm85_write_value(client, LM85_REG_AFAN_SPIKE1, value: tmp); |
1113 | mutex_unlock(lock: &data->update_lock); |
1114 | return count; |
1115 | } |
1116 | |
1117 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels, pwm_auto_channels, 0); |
1118 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_pwm_min, pwm_auto_pwm_min, 0); |
1119 | static SENSOR_DEVICE_ATTR_RW(pwm1_auto_pwm_minctl, pwm_auto_pwm_minctl, 0); |
1120 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels, pwm_auto_channels, 1); |
1121 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_pwm_min, pwm_auto_pwm_min, 1); |
1122 | static SENSOR_DEVICE_ATTR_RW(pwm2_auto_pwm_minctl, pwm_auto_pwm_minctl, 1); |
1123 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_channels, pwm_auto_channels, 2); |
1124 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_pwm_min, pwm_auto_pwm_min, 2); |
1125 | static SENSOR_DEVICE_ATTR_RW(pwm3_auto_pwm_minctl, pwm_auto_pwm_minctl, 2); |
1126 | |
1127 | /* Temperature settings for automatic PWM control */ |
1128 | |
1129 | static ssize_t temp_auto_temp_off_show(struct device *dev, |
1130 | struct device_attribute *attr, |
1131 | char *buf) |
1132 | { |
1133 | int nr = to_sensor_dev_attr(attr)->index; |
1134 | struct lm85_data *data = lm85_update_device(dev); |
1135 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->zone[nr].limit) - |
1136 | HYST_FROM_REG(data->zone[nr].hyst)); |
1137 | } |
1138 | |
1139 | static ssize_t temp_auto_temp_off_store(struct device *dev, |
1140 | struct device_attribute *attr, |
1141 | const char *buf, size_t count) |
1142 | { |
1143 | int nr = to_sensor_dev_attr(attr)->index; |
1144 | struct lm85_data *data = dev_get_drvdata(dev); |
1145 | struct i2c_client *client = data->client; |
1146 | int min; |
1147 | long val; |
1148 | int err; |
1149 | |
1150 | err = kstrtol(s: buf, base: 10, res: &val); |
1151 | if (err) |
1152 | return err; |
1153 | |
1154 | mutex_lock(&data->update_lock); |
1155 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1156 | data->zone[nr].hyst = HYST_TO_REG(min - val); |
1157 | if (nr == 0 || nr == 1) { |
1158 | lm85_write_value(client, LM85_REG_AFAN_HYST1, |
1159 | value: (data->zone[0].hyst << 4) |
1160 | | data->zone[1].hyst); |
1161 | } else { |
1162 | lm85_write_value(client, LM85_REG_AFAN_HYST2, |
1163 | value: (data->zone[2].hyst << 4)); |
1164 | } |
1165 | mutex_unlock(lock: &data->update_lock); |
1166 | return count; |
1167 | } |
1168 | |
1169 | static ssize_t temp_auto_temp_min_show(struct device *dev, |
1170 | struct device_attribute *attr, |
1171 | char *buf) |
1172 | { |
1173 | int nr = to_sensor_dev_attr(attr)->index; |
1174 | struct lm85_data *data = lm85_update_device(dev); |
1175 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->zone[nr].limit)); |
1176 | } |
1177 | |
1178 | static ssize_t temp_auto_temp_min_store(struct device *dev, |
1179 | struct device_attribute *attr, |
1180 | const char *buf, size_t count) |
1181 | { |
1182 | int nr = to_sensor_dev_attr(attr)->index; |
1183 | struct lm85_data *data = dev_get_drvdata(dev); |
1184 | struct i2c_client *client = data->client; |
1185 | long val; |
1186 | int err; |
1187 | |
1188 | err = kstrtol(s: buf, base: 10, res: &val); |
1189 | if (err) |
1190 | return err; |
1191 | |
1192 | mutex_lock(&data->update_lock); |
1193 | data->zone[nr].limit = TEMP_TO_REG(val); |
1194 | lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr), |
1195 | value: data->zone[nr].limit); |
1196 | |
1197 | /* Update temp_auto_max and temp_auto_range */ |
1198 | data->zone[nr].range = RANGE_TO_REG( |
1199 | TEMP_FROM_REG(data->zone[nr].max_desired) - |
1200 | TEMP_FROM_REG(data->zone[nr].limit)); |
1201 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
1202 | value: ((data->zone[nr].range & 0x0f) << 4) |
1203 | | data->pwm_freq[nr]); |
1204 | |
1205 | mutex_unlock(lock: &data->update_lock); |
1206 | return count; |
1207 | } |
1208 | |
1209 | static ssize_t temp_auto_temp_max_show(struct device *dev, |
1210 | struct device_attribute *attr, |
1211 | char *buf) |
1212 | { |
1213 | int nr = to_sensor_dev_attr(attr)->index; |
1214 | struct lm85_data *data = lm85_update_device(dev); |
1215 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->zone[nr].limit) + |
1216 | RANGE_FROM_REG(data->zone[nr].range)); |
1217 | } |
1218 | |
1219 | static ssize_t temp_auto_temp_max_store(struct device *dev, |
1220 | struct device_attribute *attr, |
1221 | const char *buf, size_t count) |
1222 | { |
1223 | int nr = to_sensor_dev_attr(attr)->index; |
1224 | struct lm85_data *data = dev_get_drvdata(dev); |
1225 | struct i2c_client *client = data->client; |
1226 | int min; |
1227 | long val; |
1228 | int err; |
1229 | |
1230 | err = kstrtol(s: buf, base: 10, res: &val); |
1231 | if (err) |
1232 | return err; |
1233 | |
1234 | mutex_lock(&data->update_lock); |
1235 | min = TEMP_FROM_REG(data->zone[nr].limit); |
1236 | data->zone[nr].max_desired = TEMP_TO_REG(val); |
1237 | data->zone[nr].range = RANGE_TO_REG( |
1238 | range: val - min); |
1239 | lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), |
1240 | value: ((data->zone[nr].range & 0x0f) << 4) |
1241 | | data->pwm_freq[nr]); |
1242 | mutex_unlock(lock: &data->update_lock); |
1243 | return count; |
1244 | } |
1245 | |
1246 | static ssize_t temp_auto_temp_crit_show(struct device *dev, |
1247 | struct device_attribute *attr, |
1248 | char *buf) |
1249 | { |
1250 | int nr = to_sensor_dev_attr(attr)->index; |
1251 | struct lm85_data *data = lm85_update_device(dev); |
1252 | return sprintf(buf, fmt: "%d\n" , TEMP_FROM_REG(data->zone[nr].critical)); |
1253 | } |
1254 | |
1255 | static ssize_t temp_auto_temp_crit_store(struct device *dev, |
1256 | struct device_attribute *attr, |
1257 | const char *buf, size_t count) |
1258 | { |
1259 | int nr = to_sensor_dev_attr(attr)->index; |
1260 | struct lm85_data *data = dev_get_drvdata(dev); |
1261 | struct i2c_client *client = data->client; |
1262 | long val; |
1263 | int err; |
1264 | |
1265 | err = kstrtol(s: buf, base: 10, res: &val); |
1266 | if (err) |
1267 | return err; |
1268 | |
1269 | mutex_lock(&data->update_lock); |
1270 | data->zone[nr].critical = TEMP_TO_REG(val); |
1271 | lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr), |
1272 | value: data->zone[nr].critical); |
1273 | mutex_unlock(lock: &data->update_lock); |
1274 | return count; |
1275 | } |
1276 | |
1277 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_off, temp_auto_temp_off, 0); |
1278 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_min, temp_auto_temp_min, 0); |
1279 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_max, temp_auto_temp_max, 0); |
1280 | static SENSOR_DEVICE_ATTR_RW(temp1_auto_temp_crit, temp_auto_temp_crit, 0); |
1281 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_off, temp_auto_temp_off, 1); |
1282 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_min, temp_auto_temp_min, 1); |
1283 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_max, temp_auto_temp_max, 1); |
1284 | static SENSOR_DEVICE_ATTR_RW(temp2_auto_temp_crit, temp_auto_temp_crit, 1); |
1285 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_off, temp_auto_temp_off, 2); |
1286 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_min, temp_auto_temp_min, 2); |
1287 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_max, temp_auto_temp_max, 2); |
1288 | static SENSOR_DEVICE_ATTR_RW(temp3_auto_temp_crit, temp_auto_temp_crit, 2); |
1289 | |
1290 | static struct attribute *lm85_attributes[] = { |
1291 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1292 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1293 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1294 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
1295 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
1296 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
1297 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
1298 | &sensor_dev_attr_fan4_min.dev_attr.attr, |
1299 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1300 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1301 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1302 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1303 | |
1304 | &sensor_dev_attr_pwm1.dev_attr.attr, |
1305 | &sensor_dev_attr_pwm2.dev_attr.attr, |
1306 | &sensor_dev_attr_pwm3.dev_attr.attr, |
1307 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
1308 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
1309 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
1310 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1311 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, |
1312 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, |
1313 | |
1314 | &sensor_dev_attr_in0_input.dev_attr.attr, |
1315 | &sensor_dev_attr_in1_input.dev_attr.attr, |
1316 | &sensor_dev_attr_in2_input.dev_attr.attr, |
1317 | &sensor_dev_attr_in3_input.dev_attr.attr, |
1318 | &sensor_dev_attr_in0_min.dev_attr.attr, |
1319 | &sensor_dev_attr_in1_min.dev_attr.attr, |
1320 | &sensor_dev_attr_in2_min.dev_attr.attr, |
1321 | &sensor_dev_attr_in3_min.dev_attr.attr, |
1322 | &sensor_dev_attr_in0_max.dev_attr.attr, |
1323 | &sensor_dev_attr_in1_max.dev_attr.attr, |
1324 | &sensor_dev_attr_in2_max.dev_attr.attr, |
1325 | &sensor_dev_attr_in3_max.dev_attr.attr, |
1326 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1327 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1328 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1329 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1330 | |
1331 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
1332 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
1333 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
1334 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
1335 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
1336 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
1337 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1338 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
1339 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
1340 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1341 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
1342 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
1343 | &sensor_dev_attr_temp1_fault.dev_attr.attr, |
1344 | &sensor_dev_attr_temp3_fault.dev_attr.attr, |
1345 | |
1346 | &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, |
1347 | &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, |
1348 | &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr, |
1349 | &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr, |
1350 | &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr, |
1351 | &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr, |
1352 | |
1353 | &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr, |
1354 | &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr, |
1355 | &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr, |
1356 | &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr, |
1357 | &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr, |
1358 | &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr, |
1359 | &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr, |
1360 | &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr, |
1361 | &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr, |
1362 | |
1363 | &dev_attr_vrm.attr, |
1364 | &dev_attr_cpu0_vid.attr, |
1365 | &dev_attr_alarms.attr, |
1366 | NULL |
1367 | }; |
1368 | |
1369 | static const struct attribute_group lm85_group = { |
1370 | .attrs = lm85_attributes, |
1371 | }; |
1372 | |
1373 | static struct attribute *lm85_attributes_minctl[] = { |
1374 | &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr, |
1375 | &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr, |
1376 | &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr, |
1377 | NULL |
1378 | }; |
1379 | |
1380 | static const struct attribute_group lm85_group_minctl = { |
1381 | .attrs = lm85_attributes_minctl, |
1382 | }; |
1383 | |
1384 | static struct attribute *lm85_attributes_temp_off[] = { |
1385 | &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr, |
1386 | &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr, |
1387 | &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr, |
1388 | NULL |
1389 | }; |
1390 | |
1391 | static const struct attribute_group lm85_group_temp_off = { |
1392 | .attrs = lm85_attributes_temp_off, |
1393 | }; |
1394 | |
1395 | static struct attribute *lm85_attributes_in4[] = { |
1396 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1397 | &sensor_dev_attr_in4_min.dev_attr.attr, |
1398 | &sensor_dev_attr_in4_max.dev_attr.attr, |
1399 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
1400 | NULL |
1401 | }; |
1402 | |
1403 | static const struct attribute_group lm85_group_in4 = { |
1404 | .attrs = lm85_attributes_in4, |
1405 | }; |
1406 | |
1407 | static struct attribute *lm85_attributes_in567[] = { |
1408 | &sensor_dev_attr_in5_input.dev_attr.attr, |
1409 | &sensor_dev_attr_in6_input.dev_attr.attr, |
1410 | &sensor_dev_attr_in7_input.dev_attr.attr, |
1411 | &sensor_dev_attr_in5_min.dev_attr.attr, |
1412 | &sensor_dev_attr_in6_min.dev_attr.attr, |
1413 | &sensor_dev_attr_in7_min.dev_attr.attr, |
1414 | &sensor_dev_attr_in5_max.dev_attr.attr, |
1415 | &sensor_dev_attr_in6_max.dev_attr.attr, |
1416 | &sensor_dev_attr_in7_max.dev_attr.attr, |
1417 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1418 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
1419 | &sensor_dev_attr_in7_alarm.dev_attr.attr, |
1420 | NULL |
1421 | }; |
1422 | |
1423 | static const struct attribute_group lm85_group_in567 = { |
1424 | .attrs = lm85_attributes_in567, |
1425 | }; |
1426 | |
1427 | static void lm85_init_client(struct i2c_client *client) |
1428 | { |
1429 | int value; |
1430 | |
1431 | /* Start monitoring if needed */ |
1432 | value = lm85_read_value(client, LM85_REG_CONFIG); |
1433 | if (!(value & 0x01)) { |
1434 | dev_info(&client->dev, "Starting monitoring\n" ); |
1435 | lm85_write_value(client, LM85_REG_CONFIG, value: value | 0x01); |
1436 | } |
1437 | |
1438 | /* Warn about unusual configuration bits */ |
1439 | if (value & 0x02) |
1440 | dev_warn(&client->dev, "Device configuration is locked\n" ); |
1441 | if (!(value & 0x04)) |
1442 | dev_warn(&client->dev, "Device is not ready\n" ); |
1443 | } |
1444 | |
1445 | static int lm85_is_fake(struct i2c_client *client) |
1446 | { |
1447 | /* |
1448 | * Differenciate between real LM96000 and Winbond WPCD377I. The latter |
1449 | * emulate the former except that it has no hardware monitoring function |
1450 | * so the readings are always 0. |
1451 | */ |
1452 | int i; |
1453 | u8 in_temp, fan; |
1454 | |
1455 | for (i = 0; i < 8; i++) { |
1456 | in_temp = i2c_smbus_read_byte_data(client, command: 0x20 + i); |
1457 | fan = i2c_smbus_read_byte_data(client, command: 0x28 + i); |
1458 | if (in_temp != 0x00 || fan != 0xff) |
1459 | return 0; |
1460 | } |
1461 | |
1462 | return 1; |
1463 | } |
1464 | |
1465 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1466 | static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) |
1467 | { |
1468 | struct i2c_adapter *adapter = client->adapter; |
1469 | int address = client->addr; |
1470 | const char *type_name = NULL; |
1471 | int company, verstep; |
1472 | |
1473 | if (!i2c_check_functionality(adap: adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
1474 | /* We need to be able to do byte I/O */ |
1475 | return -ENODEV; |
1476 | } |
1477 | |
1478 | /* Determine the chip type */ |
1479 | company = lm85_read_value(client, LM85_REG_COMPANY); |
1480 | verstep = lm85_read_value(client, LM85_REG_VERSTEP); |
1481 | |
1482 | dev_dbg(&adapter->dev, |
1483 | "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n" , |
1484 | address, company, verstep); |
1485 | |
1486 | if (company == LM85_COMPANY_NATIONAL) { |
1487 | switch (verstep) { |
1488 | case LM85_VERSTEP_LM85C: |
1489 | type_name = "lm85c" ; |
1490 | break; |
1491 | case LM85_VERSTEP_LM85B: |
1492 | type_name = "lm85b" ; |
1493 | break; |
1494 | case LM85_VERSTEP_LM96000_1: |
1495 | case LM85_VERSTEP_LM96000_2: |
1496 | /* Check for Winbond WPCD377I */ |
1497 | if (lm85_is_fake(client)) { |
1498 | dev_dbg(&adapter->dev, |
1499 | "Found Winbond WPCD377I, ignoring\n" ); |
1500 | return -ENODEV; |
1501 | } |
1502 | type_name = "lm96000" ; |
1503 | break; |
1504 | } |
1505 | } else if (company == LM85_COMPANY_ANALOG_DEV) { |
1506 | switch (verstep) { |
1507 | case LM85_VERSTEP_ADM1027: |
1508 | type_name = "adm1027" ; |
1509 | break; |
1510 | case LM85_VERSTEP_ADT7463: |
1511 | case LM85_VERSTEP_ADT7463C: |
1512 | type_name = "adt7463" ; |
1513 | break; |
1514 | case LM85_VERSTEP_ADT7468_1: |
1515 | case LM85_VERSTEP_ADT7468_2: |
1516 | type_name = "adt7468" ; |
1517 | break; |
1518 | } |
1519 | } else if (company == LM85_COMPANY_SMSC) { |
1520 | switch (verstep) { |
1521 | case LM85_VERSTEP_EMC6D100_A0: |
1522 | case LM85_VERSTEP_EMC6D100_A1: |
1523 | /* Note: we can't tell a '100 from a '101 */ |
1524 | type_name = "emc6d100" ; |
1525 | break; |
1526 | case LM85_VERSTEP_EMC6D102: |
1527 | type_name = "emc6d102" ; |
1528 | break; |
1529 | case LM85_VERSTEP_EMC6D103_A0: |
1530 | case LM85_VERSTEP_EMC6D103_A1: |
1531 | type_name = "emc6d103" ; |
1532 | break; |
1533 | case LM85_VERSTEP_EMC6D103S: |
1534 | type_name = "emc6d103s" ; |
1535 | break; |
1536 | } |
1537 | } |
1538 | |
1539 | if (!type_name) |
1540 | return -ENODEV; |
1541 | |
1542 | strscpy(info->type, type_name, I2C_NAME_SIZE); |
1543 | |
1544 | return 0; |
1545 | } |
1546 | |
1547 | static const struct i2c_device_id lm85_id[]; |
1548 | |
1549 | static int lm85_probe(struct i2c_client *client) |
1550 | { |
1551 | struct device *dev = &client->dev; |
1552 | struct device *hwmon_dev; |
1553 | struct lm85_data *data; |
1554 | int idx = 0; |
1555 | |
1556 | data = devm_kzalloc(dev, size: sizeof(struct lm85_data), GFP_KERNEL); |
1557 | if (!data) |
1558 | return -ENOMEM; |
1559 | |
1560 | data->client = client; |
1561 | if (client->dev.of_node) |
1562 | data->type = (uintptr_t)of_device_get_match_data(dev: &client->dev); |
1563 | else |
1564 | data->type = i2c_match_id(id: lm85_id, client)->driver_data; |
1565 | mutex_init(&data->update_lock); |
1566 | |
1567 | /* Fill in the chip specific driver values */ |
1568 | switch (data->type) { |
1569 | case adm1027: |
1570 | case adt7463: |
1571 | case adt7468: |
1572 | case emc6d100: |
1573 | case emc6d102: |
1574 | case emc6d103: |
1575 | case emc6d103s: |
1576 | data->freq_map = adm1027_freq_map; |
1577 | data->freq_map_size = ARRAY_SIZE(adm1027_freq_map); |
1578 | break; |
1579 | case lm96000: |
1580 | data->freq_map = lm96000_freq_map; |
1581 | data->freq_map_size = ARRAY_SIZE(lm96000_freq_map); |
1582 | break; |
1583 | default: |
1584 | data->freq_map = lm85_freq_map; |
1585 | data->freq_map_size = ARRAY_SIZE(lm85_freq_map); |
1586 | } |
1587 | |
1588 | /* Set the VRM version */ |
1589 | data->vrm = vid_which_vrm(); |
1590 | |
1591 | /* Initialize the LM85 chip */ |
1592 | lm85_init_client(client); |
1593 | |
1594 | /* sysfs hooks */ |
1595 | data->groups[idx++] = &lm85_group; |
1596 | |
1597 | /* minctl and temp_off exist on all chips except emc6d103s */ |
1598 | if (data->type != emc6d103s) { |
1599 | data->groups[idx++] = &lm85_group_minctl; |
1600 | data->groups[idx++] = &lm85_group_temp_off; |
1601 | } |
1602 | |
1603 | /* |
1604 | * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used |
1605 | * as a sixth digital VID input rather than an analog input. |
1606 | */ |
1607 | if (data->type == adt7463 || data->type == adt7468) { |
1608 | u8 vid = lm85_read_value(client, LM85_REG_VID); |
1609 | if (vid & 0x80) |
1610 | data->has_vid5 = true; |
1611 | } |
1612 | |
1613 | if (!data->has_vid5) |
1614 | data->groups[idx++] = &lm85_group_in4; |
1615 | |
1616 | /* The EMC6D100 has 3 additional voltage inputs */ |
1617 | if (data->type == emc6d100) |
1618 | data->groups[idx++] = &lm85_group_in567; |
1619 | |
1620 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, name: client->name, |
1621 | drvdata: data, groups: data->groups); |
1622 | return PTR_ERR_OR_ZERO(ptr: hwmon_dev); |
1623 | } |
1624 | |
1625 | static const struct i2c_device_id lm85_id[] = { |
1626 | { "adm1027" , adm1027 }, |
1627 | { "adt7463" , adt7463 }, |
1628 | { "adt7468" , adt7468 }, |
1629 | { "lm85" , lm85 }, |
1630 | { "lm85b" , lm85 }, |
1631 | { "lm85c" , lm85 }, |
1632 | { "lm96000" , lm96000 }, |
1633 | { "emc6d100" , emc6d100 }, |
1634 | { "emc6d101" , emc6d100 }, |
1635 | { "emc6d102" , emc6d102 }, |
1636 | { "emc6d103" , emc6d103 }, |
1637 | { "emc6d103s" , emc6d103s }, |
1638 | { } |
1639 | }; |
1640 | MODULE_DEVICE_TABLE(i2c, lm85_id); |
1641 | |
1642 | static const struct of_device_id __maybe_unused lm85_of_match[] = { |
1643 | { |
1644 | .compatible = "adi,adm1027" , |
1645 | .data = (void *)adm1027 |
1646 | }, |
1647 | { |
1648 | .compatible = "adi,adt7463" , |
1649 | .data = (void *)adt7463 |
1650 | }, |
1651 | { |
1652 | .compatible = "adi,adt7468" , |
1653 | .data = (void *)adt7468 |
1654 | }, |
1655 | { |
1656 | .compatible = "national,lm85" , |
1657 | .data = (void *)lm85 |
1658 | }, |
1659 | { |
1660 | .compatible = "national,lm85b" , |
1661 | .data = (void *)lm85 |
1662 | }, |
1663 | { |
1664 | .compatible = "national,lm85c" , |
1665 | .data = (void *)lm85 |
1666 | }, |
1667 | { |
1668 | .compatible = "ti,lm96000" , |
1669 | .data = (void *)lm96000 |
1670 | }, |
1671 | { |
1672 | .compatible = "smsc,emc6d100" , |
1673 | .data = (void *)emc6d100 |
1674 | }, |
1675 | { |
1676 | .compatible = "smsc,emc6d101" , |
1677 | .data = (void *)emc6d100 |
1678 | }, |
1679 | { |
1680 | .compatible = "smsc,emc6d102" , |
1681 | .data = (void *)emc6d102 |
1682 | }, |
1683 | { |
1684 | .compatible = "smsc,emc6d103" , |
1685 | .data = (void *)emc6d103 |
1686 | }, |
1687 | { |
1688 | .compatible = "smsc,emc6d103s" , |
1689 | .data = (void *)emc6d103s |
1690 | }, |
1691 | { }, |
1692 | }; |
1693 | MODULE_DEVICE_TABLE(of, lm85_of_match); |
1694 | |
1695 | static struct i2c_driver lm85_driver = { |
1696 | .class = I2C_CLASS_HWMON, |
1697 | .driver = { |
1698 | .name = "lm85" , |
1699 | .of_match_table = of_match_ptr(lm85_of_match), |
1700 | }, |
1701 | .probe = lm85_probe, |
1702 | .id_table = lm85_id, |
1703 | .detect = lm85_detect, |
1704 | .address_list = normal_i2c, |
1705 | }; |
1706 | |
1707 | module_i2c_driver(lm85_driver); |
1708 | |
1709 | MODULE_LICENSE("GPL" ); |
1710 | MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " |
1711 | "Margit Schubert-While <margitsw@t-online.de>, " |
1712 | "Justin Thiessen <jthiessen@penguincomputing.com>" ); |
1713 | MODULE_DESCRIPTION("LM85-B, LM85-C driver" ); |
1714 | |