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1 | /* |
2 | * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives |
3 | * Copyright (C) 2007-2008, Advanced Micro Devices, Inc. |
4 | * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> |
5 | * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com> |
6 | * Copyright (C) 2009 Jean Delvare <khali@linux-fr.org> |
7 | * |
8 | * Derived from the lm83 driver by Jean Delvare |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software Foundation. |
13 | */ |
14 | |
15 | #include <linux/module.h> |
16 | #include <linux/init.h> |
17 | #include <linux/slab.h> |
18 | #include <linux/i2c.h> |
19 | #include <linux/hwmon.h> |
20 | #include <linux/hwmon-sysfs.h> |
21 | #include <linux/hwmon-vid.h> |
22 | #include <linux/err.h> |
23 | |
24 | /* Indexes for the sysfs hooks */ |
25 | |
26 | #define INPUT 0 |
27 | #define MIN 1 |
28 | #define MAX 2 |
29 | #define CONTROL 3 |
30 | #define OFFSET 3 |
31 | #define AUTOMIN 4 |
32 | #define THERM 5 |
33 | #define HYSTERSIS 6 |
34 | |
35 | /* These are unique identifiers for the sysfs functions - unlike the |
36 | numbers above, these are not also indexes into an array |
37 | */ |
38 | |
39 | #define ALARM 9 |
40 | #define FAULT 10 |
41 | |
42 | /* 7475 Common Registers */ |
43 | |
44 | #define REG_DEVREV2 0x12 /* ADT7490 only */ |
45 | |
46 | #define REG_VTT 0x1E /* ADT7490 only */ |
47 | #define REG_EXTEND3 0x1F /* ADT7490 only */ |
48 | |
49 | #define REG_VOLTAGE_BASE 0x20 |
50 | #define REG_TEMP_BASE 0x25 |
51 | #define REG_TACH_BASE 0x28 |
52 | #define REG_PWM_BASE 0x30 |
53 | #define REG_PWM_MAX_BASE 0x38 |
54 | |
55 | #define REG_DEVID 0x3D |
56 | #define REG_VENDID 0x3E |
57 | #define REG_DEVID2 0x3F |
58 | |
59 | #define REG_STATUS1 0x41 |
60 | #define REG_STATUS2 0x42 |
61 | |
62 | #define REG_VID 0x43 /* ADT7476 only */ |
63 | |
64 | #define REG_VOLTAGE_MIN_BASE 0x44 |
65 | #define REG_VOLTAGE_MAX_BASE 0x45 |
66 | |
67 | #define REG_TEMP_MIN_BASE 0x4E |
68 | #define REG_TEMP_MAX_BASE 0x4F |
69 | |
70 | #define REG_TACH_MIN_BASE 0x54 |
71 | |
72 | #define REG_PWM_CONFIG_BASE 0x5C |
73 | |
74 | #define REG_TEMP_TRANGE_BASE 0x5F |
75 | |
76 | #define REG_PWM_MIN_BASE 0x64 |
77 | |
78 | #define REG_TEMP_TMIN_BASE 0x67 |
79 | #define REG_TEMP_THERM_BASE 0x6A |
80 | |
81 | #define REG_REMOTE1_HYSTERSIS 0x6D |
82 | #define REG_REMOTE2_HYSTERSIS 0x6E |
83 | |
84 | #define REG_TEMP_OFFSET_BASE 0x70 |
85 | |
86 | #define REG_CONFIG2 0x73 |
87 | |
88 | #define REG_EXTEND1 0x76 |
89 | #define REG_EXTEND2 0x77 |
90 | |
91 | #define REG_CONFIG3 0x78 |
92 | #define REG_CONFIG5 0x7C |
93 | #define REG_CONFIG4 0x7D |
94 | |
95 | #define REG_STATUS4 0x81 /* ADT7490 only */ |
96 | |
97 | #define REG_VTT_MIN 0x84 /* ADT7490 only */ |
98 | #define REG_VTT_MAX 0x86 /* ADT7490 only */ |
99 | |
100 | #define VID_VIDSEL 0x80 /* ADT7476 only */ |
101 | |
102 | #define CONFIG2_ATTN 0x20 |
103 | |
104 | #define CONFIG3_SMBALERT 0x01 |
105 | #define CONFIG3_THERM 0x02 |
106 | |
107 | #define CONFIG4_PINFUNC 0x03 |
108 | #define CONFIG4_MAXDUTY 0x08 |
109 | #define CONFIG4_ATTN_IN10 0x30 |
110 | #define CONFIG4_ATTN_IN43 0xC0 |
111 | |
112 | #define CONFIG5_TWOSCOMP 0x01 |
113 | #define CONFIG5_TEMPOFFSET 0x02 |
114 | #define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */ |
115 | |
116 | /* ADT7475 Settings */ |
117 | |
118 | #define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */ |
119 | #define ADT7475_TEMP_COUNT 3 |
120 | #define ADT7475_TACH_COUNT 4 |
121 | #define ADT7475_PWM_COUNT 3 |
122 | |
123 | /* Macro to read the registers */ |
124 | |
125 | #define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg)) |
126 | |
127 | /* Macros to easily index the registers */ |
128 | |
129 | #define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2)) |
130 | #define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2)) |
131 | |
132 | #define PWM_REG(idx) (REG_PWM_BASE + (idx)) |
133 | #define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx)) |
134 | #define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx)) |
135 | #define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx)) |
136 | |
137 | #define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx)) |
138 | #define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2)) |
139 | #define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2)) |
140 | |
141 | #define TEMP_REG(idx) (REG_TEMP_BASE + (idx)) |
142 | #define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2)) |
143 | #define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2)) |
144 | #define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx)) |
145 | #define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx)) |
146 | #define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx)) |
147 | #define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx)) |
148 | |
149 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
150 | |
151 | enum chips { adt7473, adt7475, adt7476, adt7490 }; |
152 | |
153 | static const struct i2c_device_id adt7475_id[] = { |
154 | { "adt7473", adt7473 }, |
155 | { "adt7475", adt7475 }, |
156 | { "adt7476", adt7476 }, |
157 | { "adt7490", adt7490 }, |
158 | { } |
159 | }; |
160 | MODULE_DEVICE_TABLE(i2c, adt7475_id); |
161 | |
162 | struct adt7475_data { |
163 | struct device *hwmon_dev; |
164 | struct mutex lock; |
165 | |
166 | unsigned long measure_updated; |
167 | unsigned long limits_updated; |
168 | char valid; |
169 | |
170 | u8 config4; |
171 | u8 config5; |
172 | u8 has_voltage; |
173 | u8 bypass_attn; /* Bypass voltage attenuator */ |
174 | u8 has_pwm2:1; |
175 | u8 has_fan4:1; |
176 | u8 has_vid:1; |
177 | u32 alarms; |
178 | u16 voltage[3][6]; |
179 | u16 temp[7][3]; |
180 | u16 tach[2][4]; |
181 | u8 pwm[4][3]; |
182 | u8 range[3]; |
183 | u8 pwmctl[3]; |
184 | u8 pwmchan[3]; |
185 | |
186 | u8 vid; |
187 | u8 vrm; |
188 | }; |
189 | |
190 | static struct i2c_driver adt7475_driver; |
191 | static struct adt7475_data *adt7475_update_device(struct device *dev); |
192 | static void adt7475_read_hystersis(struct i2c_client *client); |
193 | static void adt7475_read_pwm(struct i2c_client *client, int index); |
194 | |
195 | /* Given a temp value, convert it to register value */ |
196 | |
197 | static inline u16 temp2reg(struct adt7475_data *data, long val) |
198 | { |
199 | u16 ret; |
200 | |
201 | if (!(data->config5 & CONFIG5_TWOSCOMP)) { |
202 | val = SENSORS_LIMIT(val, -64000, 191000); |
203 | ret = (val + 64500) / 1000; |
204 | } else { |
205 | val = SENSORS_LIMIT(val, -128000, 127000); |
206 | if (val < -500) |
207 | ret = (256500 + val) / 1000; |
208 | else |
209 | ret = (val + 500) / 1000; |
210 | } |
211 | |
212 | return ret << 2; |
213 | } |
214 | |
215 | /* Given a register value, convert it to a real temp value */ |
216 | |
217 | static inline int reg2temp(struct adt7475_data *data, u16 reg) |
218 | { |
219 | if (data->config5 & CONFIG5_TWOSCOMP) { |
220 | if (reg >= 512) |
221 | return (reg - 1024) * 250; |
222 | else |
223 | return reg * 250; |
224 | } else |
225 | return (reg - 256) * 250; |
226 | } |
227 | |
228 | static inline int tach2rpm(u16 tach) |
229 | { |
230 | if (tach == 0 || tach == 0xFFFF) |
231 | return 0; |
232 | |
233 | return (90000 * 60) / tach; |
234 | } |
235 | |
236 | static inline u16 rpm2tach(unsigned long rpm) |
237 | { |
238 | if (rpm == 0) |
239 | return 0; |
240 | |
241 | return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF); |
242 | } |
243 | |
244 | /* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */ |
245 | static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = { |
246 | { 45, 94 }, /* +2.5V */ |
247 | { 175, 525 }, /* Vccp */ |
248 | { 68, 71 }, /* Vcc */ |
249 | { 93, 47 }, /* +5V */ |
250 | { 120, 20 }, /* +12V */ |
251 | { 45, 45 }, /* Vtt */ |
252 | }; |
253 | |
254 | static inline int reg2volt(int channel, u16 reg, u8 bypass_attn) |
255 | { |
256 | const int *r = adt7473_in_scaling[channel]; |
257 | |
258 | if (bypass_attn & (1 << channel)) |
259 | return DIV_ROUND_CLOSEST(reg * 2250, 1024); |
260 | return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024); |
261 | } |
262 | |
263 | static inline u16 volt2reg(int channel, long volt, u8 bypass_attn) |
264 | { |
265 | const int *r = adt7473_in_scaling[channel]; |
266 | long reg; |
267 | |
268 | if (bypass_attn & (1 << channel)) |
269 | reg = (volt * 1024) / 2250; |
270 | else |
271 | reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250); |
272 | return SENSORS_LIMIT(reg, 0, 1023) & (0xff << 2); |
273 | } |
274 | |
275 | static u16 adt7475_read_word(struct i2c_client *client, int reg) |
276 | { |
277 | u16 val; |
278 | |
279 | val = i2c_smbus_read_byte_data(client, reg); |
280 | val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8); |
281 | |
282 | return val; |
283 | } |
284 | |
285 | static void adt7475_write_word(struct i2c_client *client, int reg, u16 val) |
286 | { |
287 | i2c_smbus_write_byte_data(client, reg + 1, val >> 8); |
288 | i2c_smbus_write_byte_data(client, reg, val & 0xFF); |
289 | } |
290 | |
291 | /* Find the nearest value in a table - used for pwm frequency and |
292 | auto temp range */ |
293 | static int find_nearest(long val, const int *array, int size) |
294 | { |
295 | int i; |
296 | |
297 | if (val < array[0]) |
298 | return 0; |
299 | |
300 | if (val > array[size - 1]) |
301 | return size - 1; |
302 | |
303 | for (i = 0; i < size - 1; i++) { |
304 | int a, b; |
305 | |
306 | if (val > array[i + 1]) |
307 | continue; |
308 | |
309 | a = val - array[i]; |
310 | b = array[i + 1] - val; |
311 | |
312 | return (a <= b) ? i : i + 1; |
313 | } |
314 | |
315 | return 0; |
316 | } |
317 | |
318 | static ssize_t show_voltage(struct device *dev, struct device_attribute *attr, |
319 | char *buf) |
320 | { |
321 | struct adt7475_data *data = adt7475_update_device(dev); |
322 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
323 | unsigned short val; |
324 | |
325 | switch (sattr->nr) { |
326 | case ALARM: |
327 | return sprintf(buf, "%d\n", |
328 | (data->alarms >> sattr->index) & 1); |
329 | default: |
330 | val = data->voltage[sattr->nr][sattr->index]; |
331 | return sprintf(buf, "%d\n", |
332 | reg2volt(sattr->index, val, data->bypass_attn)); |
333 | } |
334 | } |
335 | |
336 | static ssize_t set_voltage(struct device *dev, struct device_attribute *attr, |
337 | const char *buf, size_t count) |
338 | { |
339 | |
340 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
341 | struct i2c_client *client = to_i2c_client(dev); |
342 | struct adt7475_data *data = i2c_get_clientdata(client); |
343 | unsigned char reg; |
344 | long val; |
345 | |
346 | if (strict_strtol(buf, 10, &val)) |
347 | return -EINVAL; |
348 | |
349 | mutex_lock(&data->lock); |
350 | |
351 | data->voltage[sattr->nr][sattr->index] = |
352 | volt2reg(sattr->index, val, data->bypass_attn); |
353 | |
354 | if (sattr->index < ADT7475_VOLTAGE_COUNT) { |
355 | if (sattr->nr == MIN) |
356 | reg = VOLTAGE_MIN_REG(sattr->index); |
357 | else |
358 | reg = VOLTAGE_MAX_REG(sattr->index); |
359 | } else { |
360 | if (sattr->nr == MIN) |
361 | reg = REG_VTT_MIN; |
362 | else |
363 | reg = REG_VTT_MAX; |
364 | } |
365 | |
366 | i2c_smbus_write_byte_data(client, reg, |
367 | data->voltage[sattr->nr][sattr->index] >> 2); |
368 | mutex_unlock(&data->lock); |
369 | |
370 | return count; |
371 | } |
372 | |
373 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
374 | char *buf) |
375 | { |
376 | struct adt7475_data *data = adt7475_update_device(dev); |
377 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
378 | int out; |
379 | |
380 | switch (sattr->nr) { |
381 | case HYSTERSIS: |
382 | mutex_lock(&data->lock); |
383 | out = data->temp[sattr->nr][sattr->index]; |
384 | if (sattr->index != 1) |
385 | out = (out >> 4) & 0xF; |
386 | else |
387 | out = (out & 0xF); |
388 | /* Show the value as an absolute number tied to |
389 | * THERM */ |
390 | out = reg2temp(data, data->temp[THERM][sattr->index]) - |
391 | out * 1000; |
392 | mutex_unlock(&data->lock); |
393 | break; |
394 | |
395 | case OFFSET: |
396 | /* Offset is always 2's complement, regardless of the |
397 | * setting in CONFIG5 */ |
398 | mutex_lock(&data->lock); |
399 | out = (s8)data->temp[sattr->nr][sattr->index]; |
400 | if (data->config5 & CONFIG5_TEMPOFFSET) |
401 | out *= 1000; |
402 | else |
403 | out *= 500; |
404 | mutex_unlock(&data->lock); |
405 | break; |
406 | |
407 | case ALARM: |
408 | out = (data->alarms >> (sattr->index + 4)) & 1; |
409 | break; |
410 | |
411 | case FAULT: |
412 | /* Note - only for remote1 and remote2 */ |
413 | out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000)); |
414 | break; |
415 | |
416 | default: |
417 | /* All other temp values are in the configured format */ |
418 | out = reg2temp(data, data->temp[sattr->nr][sattr->index]); |
419 | } |
420 | |
421 | return sprintf(buf, "%d\n", out); |
422 | } |
423 | |
424 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, |
425 | const char *buf, size_t count) |
426 | { |
427 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
428 | struct i2c_client *client = to_i2c_client(dev); |
429 | struct adt7475_data *data = i2c_get_clientdata(client); |
430 | unsigned char reg = 0; |
431 | u8 out; |
432 | int temp; |
433 | long val; |
434 | |
435 | if (strict_strtol(buf, 10, &val)) |
436 | return -EINVAL; |
437 | |
438 | mutex_lock(&data->lock); |
439 | |
440 | /* We need the config register in all cases for temp <-> reg conv. */ |
441 | data->config5 = adt7475_read(REG_CONFIG5); |
442 | |
443 | switch (sattr->nr) { |
444 | case OFFSET: |
445 | if (data->config5 & CONFIG5_TEMPOFFSET) { |
446 | val = SENSORS_LIMIT(val, -63000, 127000); |
447 | out = data->temp[OFFSET][sattr->index] = val / 1000; |
448 | } else { |
449 | val = SENSORS_LIMIT(val, -63000, 64000); |
450 | out = data->temp[OFFSET][sattr->index] = val / 500; |
451 | } |
452 | break; |
453 | |
454 | case HYSTERSIS: |
455 | /* The value will be given as an absolute value, turn it |
456 | into an offset based on THERM */ |
457 | |
458 | /* Read fresh THERM and HYSTERSIS values from the chip */ |
459 | data->temp[THERM][sattr->index] = |
460 | adt7475_read(TEMP_THERM_REG(sattr->index)) << 2; |
461 | adt7475_read_hystersis(client); |
462 | |
463 | temp = reg2temp(data, data->temp[THERM][sattr->index]); |
464 | val = SENSORS_LIMIT(val, temp - 15000, temp); |
465 | val = (temp - val) / 1000; |
466 | |
467 | if (sattr->index != 1) { |
468 | data->temp[HYSTERSIS][sattr->index] &= 0xF0; |
469 | data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4; |
470 | } else { |
471 | data->temp[HYSTERSIS][sattr->index] &= 0x0F; |
472 | data->temp[HYSTERSIS][sattr->index] |= (val & 0xF); |
473 | } |
474 | |
475 | out = data->temp[HYSTERSIS][sattr->index]; |
476 | break; |
477 | |
478 | default: |
479 | data->temp[sattr->nr][sattr->index] = temp2reg(data, val); |
480 | |
481 | /* We maintain an extra 2 digits of precision for simplicity |
482 | * - shift those back off before writing the value */ |
483 | out = (u8) (data->temp[sattr->nr][sattr->index] >> 2); |
484 | } |
485 | |
486 | switch (sattr->nr) { |
487 | case MIN: |
488 | reg = TEMP_MIN_REG(sattr->index); |
489 | break; |
490 | case MAX: |
491 | reg = TEMP_MAX_REG(sattr->index); |
492 | break; |
493 | case OFFSET: |
494 | reg = TEMP_OFFSET_REG(sattr->index); |
495 | break; |
496 | case AUTOMIN: |
497 | reg = TEMP_TMIN_REG(sattr->index); |
498 | break; |
499 | case THERM: |
500 | reg = TEMP_THERM_REG(sattr->index); |
501 | break; |
502 | case HYSTERSIS: |
503 | if (sattr->index != 2) |
504 | reg = REG_REMOTE1_HYSTERSIS; |
505 | else |
506 | reg = REG_REMOTE2_HYSTERSIS; |
507 | |
508 | break; |
509 | } |
510 | |
511 | i2c_smbus_write_byte_data(client, reg, out); |
512 | |
513 | mutex_unlock(&data->lock); |
514 | return count; |
515 | } |
516 | |
517 | /* Table of autorange values - the user will write the value in millidegrees, |
518 | and we'll convert it */ |
519 | static const int autorange_table[] = { |
520 | 2000, 2500, 3330, 4000, 5000, 6670, 8000, |
521 | 10000, 13330, 16000, 20000, 26670, 32000, 40000, |
522 | 53330, 80000 |
523 | }; |
524 | |
525 | static ssize_t show_point2(struct device *dev, struct device_attribute *attr, |
526 | char *buf) |
527 | { |
528 | struct adt7475_data *data = adt7475_update_device(dev); |
529 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
530 | int out, val; |
531 | |
532 | mutex_lock(&data->lock); |
533 | out = (data->range[sattr->index] >> 4) & 0x0F; |
534 | val = reg2temp(data, data->temp[AUTOMIN][sattr->index]); |
535 | mutex_unlock(&data->lock); |
536 | |
537 | return sprintf(buf, "%d\n", val + autorange_table[out]); |
538 | } |
539 | |
540 | static ssize_t set_point2(struct device *dev, struct device_attribute *attr, |
541 | const char *buf, size_t count) |
542 | { |
543 | struct i2c_client *client = to_i2c_client(dev); |
544 | struct adt7475_data *data = i2c_get_clientdata(client); |
545 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
546 | int temp; |
547 | long val; |
548 | |
549 | if (strict_strtol(buf, 10, &val)) |
550 | return -EINVAL; |
551 | |
552 | mutex_lock(&data->lock); |
553 | |
554 | /* Get a fresh copy of the needed registers */ |
555 | data->config5 = adt7475_read(REG_CONFIG5); |
556 | data->temp[AUTOMIN][sattr->index] = |
557 | adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2; |
558 | data->range[sattr->index] = |
559 | adt7475_read(TEMP_TRANGE_REG(sattr->index)); |
560 | |
561 | /* The user will write an absolute value, so subtract the start point |
562 | to figure the range */ |
563 | temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]); |
564 | val = SENSORS_LIMIT(val, temp + autorange_table[0], |
565 | temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]); |
566 | val -= temp; |
567 | |
568 | /* Find the nearest table entry to what the user wrote */ |
569 | val = find_nearest(val, autorange_table, ARRAY_SIZE(autorange_table)); |
570 | |
571 | data->range[sattr->index] &= ~0xF0; |
572 | data->range[sattr->index] |= val << 4; |
573 | |
574 | i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), |
575 | data->range[sattr->index]); |
576 | |
577 | mutex_unlock(&data->lock); |
578 | return count; |
579 | } |
580 | |
581 | static ssize_t show_tach(struct device *dev, struct device_attribute *attr, |
582 | char *buf) |
583 | { |
584 | struct adt7475_data *data = adt7475_update_device(dev); |
585 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
586 | int out; |
587 | |
588 | if (sattr->nr == ALARM) |
589 | out = (data->alarms >> (sattr->index + 10)) & 1; |
590 | else |
591 | out = tach2rpm(data->tach[sattr->nr][sattr->index]); |
592 | |
593 | return sprintf(buf, "%d\n", out); |
594 | } |
595 | |
596 | static ssize_t set_tach(struct device *dev, struct device_attribute *attr, |
597 | const char *buf, size_t count) |
598 | { |
599 | |
600 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
601 | struct i2c_client *client = to_i2c_client(dev); |
602 | struct adt7475_data *data = i2c_get_clientdata(client); |
603 | unsigned long val; |
604 | |
605 | if (strict_strtoul(buf, 10, &val)) |
606 | return -EINVAL; |
607 | |
608 | mutex_lock(&data->lock); |
609 | |
610 | data->tach[MIN][sattr->index] = rpm2tach(val); |
611 | |
612 | adt7475_write_word(client, TACH_MIN_REG(sattr->index), |
613 | data->tach[MIN][sattr->index]); |
614 | |
615 | mutex_unlock(&data->lock); |
616 | return count; |
617 | } |
618 | |
619 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, |
620 | char *buf) |
621 | { |
622 | struct adt7475_data *data = adt7475_update_device(dev); |
623 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
624 | |
625 | return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]); |
626 | } |
627 | |
628 | static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr, |
629 | char *buf) |
630 | { |
631 | struct adt7475_data *data = adt7475_update_device(dev); |
632 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
633 | |
634 | return sprintf(buf, "%d\n", data->pwmchan[sattr->index]); |
635 | } |
636 | |
637 | static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr, |
638 | char *buf) |
639 | { |
640 | struct adt7475_data *data = adt7475_update_device(dev); |
641 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
642 | |
643 | return sprintf(buf, "%d\n", data->pwmctl[sattr->index]); |
644 | } |
645 | |
646 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
647 | const char *buf, size_t count) |
648 | { |
649 | |
650 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
651 | struct i2c_client *client = to_i2c_client(dev); |
652 | struct adt7475_data *data = i2c_get_clientdata(client); |
653 | unsigned char reg = 0; |
654 | long val; |
655 | |
656 | if (strict_strtol(buf, 10, &val)) |
657 | return -EINVAL; |
658 | |
659 | mutex_lock(&data->lock); |
660 | |
661 | switch (sattr->nr) { |
662 | case INPUT: |
663 | /* Get a fresh value for CONTROL */ |
664 | data->pwm[CONTROL][sattr->index] = |
665 | adt7475_read(PWM_CONFIG_REG(sattr->index)); |
666 | |
667 | /* If we are not in manual mode, then we shouldn't allow |
668 | * the user to set the pwm speed */ |
669 | if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) { |
670 | mutex_unlock(&data->lock); |
671 | return count; |
672 | } |
673 | |
674 | reg = PWM_REG(sattr->index); |
675 | break; |
676 | |
677 | case MIN: |
678 | reg = PWM_MIN_REG(sattr->index); |
679 | break; |
680 | |
681 | case MAX: |
682 | reg = PWM_MAX_REG(sattr->index); |
683 | break; |
684 | } |
685 | |
686 | data->pwm[sattr->nr][sattr->index] = SENSORS_LIMIT(val, 0, 0xFF); |
687 | i2c_smbus_write_byte_data(client, reg, |
688 | data->pwm[sattr->nr][sattr->index]); |
689 | |
690 | mutex_unlock(&data->lock); |
691 | |
692 | return count; |
693 | } |
694 | |
695 | /* Called by set_pwmctrl and set_pwmchan */ |
696 | |
697 | static int hw_set_pwm(struct i2c_client *client, int index, |
698 | unsigned int pwmctl, unsigned int pwmchan) |
699 | { |
700 | struct adt7475_data *data = i2c_get_clientdata(client); |
701 | long val = 0; |
702 | |
703 | switch (pwmctl) { |
704 | case 0: |
705 | val = 0x03; /* Run at full speed */ |
706 | break; |
707 | case 1: |
708 | val = 0x07; /* Manual mode */ |
709 | break; |
710 | case 2: |
711 | switch (pwmchan) { |
712 | case 1: |
713 | /* Remote1 controls PWM */ |
714 | val = 0x00; |
715 | break; |
716 | case 2: |
717 | /* local controls PWM */ |
718 | val = 0x01; |
719 | break; |
720 | case 4: |
721 | /* remote2 controls PWM */ |
722 | val = 0x02; |
723 | break; |
724 | case 6: |
725 | /* local/remote2 control PWM */ |
726 | val = 0x05; |
727 | break; |
728 | case 7: |
729 | /* All three control PWM */ |
730 | val = 0x06; |
731 | break; |
732 | default: |
733 | return -EINVAL; |
734 | } |
735 | break; |
736 | default: |
737 | return -EINVAL; |
738 | } |
739 | |
740 | data->pwmctl[index] = pwmctl; |
741 | data->pwmchan[index] = pwmchan; |
742 | |
743 | data->pwm[CONTROL][index] &= ~0xE0; |
744 | data->pwm[CONTROL][index] |= (val & 7) << 5; |
745 | |
746 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
747 | data->pwm[CONTROL][index]); |
748 | |
749 | return 0; |
750 | } |
751 | |
752 | static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr, |
753 | const char *buf, size_t count) |
754 | { |
755 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
756 | struct i2c_client *client = to_i2c_client(dev); |
757 | struct adt7475_data *data = i2c_get_clientdata(client); |
758 | int r; |
759 | long val; |
760 | |
761 | if (strict_strtol(buf, 10, &val)) |
762 | return -EINVAL; |
763 | |
764 | mutex_lock(&data->lock); |
765 | /* Read Modify Write PWM values */ |
766 | adt7475_read_pwm(client, sattr->index); |
767 | r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val); |
768 | if (r) |
769 | count = r; |
770 | mutex_unlock(&data->lock); |
771 | |
772 | return count; |
773 | } |
774 | |
775 | static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr, |
776 | const char *buf, size_t count) |
777 | { |
778 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
779 | struct i2c_client *client = to_i2c_client(dev); |
780 | struct adt7475_data *data = i2c_get_clientdata(client); |
781 | int r; |
782 | long val; |
783 | |
784 | if (strict_strtol(buf, 10, &val)) |
785 | return -EINVAL; |
786 | |
787 | mutex_lock(&data->lock); |
788 | /* Read Modify Write PWM values */ |
789 | adt7475_read_pwm(client, sattr->index); |
790 | r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]); |
791 | if (r) |
792 | count = r; |
793 | mutex_unlock(&data->lock); |
794 | |
795 | return count; |
796 | } |
797 | |
798 | /* List of frequencies for the PWM */ |
799 | static const int pwmfreq_table[] = { |
800 | 11, 14, 22, 29, 35, 44, 58, 88 |
801 | }; |
802 | |
803 | static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr, |
804 | char *buf) |
805 | { |
806 | struct adt7475_data *data = adt7475_update_device(dev); |
807 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
808 | |
809 | return sprintf(buf, "%d\n", |
810 | pwmfreq_table[data->range[sattr->index] & 7]); |
811 | } |
812 | |
813 | static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr, |
814 | const char *buf, size_t count) |
815 | { |
816 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
817 | struct i2c_client *client = to_i2c_client(dev); |
818 | struct adt7475_data *data = i2c_get_clientdata(client); |
819 | int out; |
820 | long val; |
821 | |
822 | if (strict_strtol(buf, 10, &val)) |
823 | return -EINVAL; |
824 | |
825 | out = find_nearest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table)); |
826 | |
827 | mutex_lock(&data->lock); |
828 | |
829 | data->range[sattr->index] = |
830 | adt7475_read(TEMP_TRANGE_REG(sattr->index)); |
831 | data->range[sattr->index] &= ~7; |
832 | data->range[sattr->index] |= out; |
833 | |
834 | i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), |
835 | data->range[sattr->index]); |
836 | |
837 | mutex_unlock(&data->lock); |
838 | return count; |
839 | } |
840 | |
841 | static ssize_t show_pwm_at_crit(struct device *dev, |
842 | struct device_attribute *devattr, char *buf) |
843 | { |
844 | struct adt7475_data *data = adt7475_update_device(dev); |
845 | return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY)); |
846 | } |
847 | |
848 | static ssize_t set_pwm_at_crit(struct device *dev, |
849 | struct device_attribute *devattr, |
850 | const char *buf, size_t count) |
851 | { |
852 | struct i2c_client *client = to_i2c_client(dev); |
853 | struct adt7475_data *data = i2c_get_clientdata(client); |
854 | long val; |
855 | |
856 | if (strict_strtol(buf, 10, &val)) |
857 | return -EINVAL; |
858 | if (val != 0 && val != 1) |
859 | return -EINVAL; |
860 | |
861 | mutex_lock(&data->lock); |
862 | data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4); |
863 | if (val) |
864 | data->config4 |= CONFIG4_MAXDUTY; |
865 | else |
866 | data->config4 &= ~CONFIG4_MAXDUTY; |
867 | i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4); |
868 | mutex_unlock(&data->lock); |
869 | |
870 | return count; |
871 | } |
872 | |
873 | static ssize_t show_vrm(struct device *dev, struct device_attribute *devattr, |
874 | char *buf) |
875 | { |
876 | struct adt7475_data *data = dev_get_drvdata(dev); |
877 | return sprintf(buf, "%d\n", (int)data->vrm); |
878 | } |
879 | |
880 | static ssize_t set_vrm(struct device *dev, struct device_attribute *devattr, |
881 | const char *buf, size_t count) |
882 | { |
883 | struct adt7475_data *data = dev_get_drvdata(dev); |
884 | long val; |
885 | |
886 | if (strict_strtol(buf, 10, &val)) |
887 | return -EINVAL; |
888 | if (val < 0 || val > 255) |
889 | return -EINVAL; |
890 | data->vrm = val; |
891 | |
892 | return count; |
893 | } |
894 | |
895 | static ssize_t show_vid(struct device *dev, struct device_attribute *devattr, |
896 | char *buf) |
897 | { |
898 | struct adt7475_data *data = adt7475_update_device(dev); |
899 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); |
900 | } |
901 | |
902 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0); |
903 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage, |
904 | set_voltage, MAX, 0); |
905 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage, |
906 | set_voltage, MIN, 0); |
907 | static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0); |
908 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1); |
909 | static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage, |
910 | set_voltage, MAX, 1); |
911 | static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage, |
912 | set_voltage, MIN, 1); |
913 | static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1); |
914 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2); |
915 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage, |
916 | set_voltage, MAX, 2); |
917 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage, |
918 | set_voltage, MIN, 2); |
919 | static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2); |
920 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3); |
921 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage, |
922 | set_voltage, MAX, 3); |
923 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage, |
924 | set_voltage, MIN, 3); |
925 | static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3); |
926 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4); |
927 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage, |
928 | set_voltage, MAX, 4); |
929 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage, |
930 | set_voltage, MIN, 4); |
931 | static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8); |
932 | static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5); |
933 | static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage, |
934 | set_voltage, MAX, 5); |
935 | static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage, |
936 | set_voltage, MIN, 5); |
937 | static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31); |
938 | static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0); |
939 | static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0); |
940 | static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0); |
941 | static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
942 | MAX, 0); |
943 | static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
944 | MIN, 0); |
945 | static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, |
946 | set_temp, OFFSET, 0); |
947 | static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR, |
948 | show_temp, set_temp, AUTOMIN, 0); |
949 | static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR, |
950 | show_point2, set_point2, 0, 0); |
951 | static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, |
952 | THERM, 0); |
953 | static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp, |
954 | set_temp, HYSTERSIS, 0); |
955 | static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1); |
956 | static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1); |
957 | static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
958 | MAX, 1); |
959 | static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
960 | MIN, 1); |
961 | static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, |
962 | set_temp, OFFSET, 1); |
963 | static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR, |
964 | show_temp, set_temp, AUTOMIN, 1); |
965 | static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR, |
966 | show_point2, set_point2, 0, 1); |
967 | static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, |
968 | THERM, 1); |
969 | static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp, |
970 | set_temp, HYSTERSIS, 1); |
971 | static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2); |
972 | static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2); |
973 | static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2); |
974 | static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, |
975 | MAX, 2); |
976 | static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, |
977 | MIN, 2); |
978 | static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, |
979 | set_temp, OFFSET, 2); |
980 | static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR, |
981 | show_temp, set_temp, AUTOMIN, 2); |
982 | static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR, |
983 | show_point2, set_point2, 0, 2); |
984 | static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, |
985 | THERM, 2); |
986 | static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp, |
987 | set_temp, HYSTERSIS, 2); |
988 | static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0); |
989 | static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach, |
990 | MIN, 0); |
991 | static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0); |
992 | static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1); |
993 | static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach, |
994 | MIN, 1); |
995 | static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1); |
996 | static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2); |
997 | static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach, |
998 | MIN, 2); |
999 | static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2); |
1000 | static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3); |
1001 | static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach, |
1002 | MIN, 3); |
1003 | static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3); |
1004 | static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, |
1005 | 0); |
1006 | static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq, |
1007 | set_pwmfreq, INPUT, 0); |
1008 | static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl, |
1009 | set_pwmctrl, INPUT, 0); |
1010 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR, |
1011 | show_pwmchan, set_pwmchan, INPUT, 0); |
1012 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, |
1013 | set_pwm, MIN, 0); |
1014 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, |
1015 | set_pwm, MAX, 0); |
1016 | static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, |
1017 | 1); |
1018 | static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq, |
1019 | set_pwmfreq, INPUT, 1); |
1020 | static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl, |
1021 | set_pwmctrl, INPUT, 1); |
1022 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR, |
1023 | show_pwmchan, set_pwmchan, INPUT, 1); |
1024 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, |
1025 | set_pwm, MIN, 1); |
1026 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, |
1027 | set_pwm, MAX, 1); |
1028 | static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, |
1029 | 2); |
1030 | static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq, |
1031 | set_pwmfreq, INPUT, 2); |
1032 | static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl, |
1033 | set_pwmctrl, INPUT, 2); |
1034 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR, |
1035 | show_pwmchan, set_pwmchan, INPUT, 2); |
1036 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, |
1037 | set_pwm, MIN, 2); |
1038 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, |
1039 | set_pwm, MAX, 2); |
1040 | |
1041 | /* Non-standard name, might need revisiting */ |
1042 | static DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO, |
1043 | show_pwm_at_crit, set_pwm_at_crit); |
1044 | |
1045 | static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, set_vrm); |
1046 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); |
1047 | |
1048 | static struct attribute *adt7475_attrs[] = { |
1049 | &sensor_dev_attr_in1_input.dev_attr.attr, |
1050 | &sensor_dev_attr_in1_max.dev_attr.attr, |
1051 | &sensor_dev_attr_in1_min.dev_attr.attr, |
1052 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1053 | &sensor_dev_attr_in2_input.dev_attr.attr, |
1054 | &sensor_dev_attr_in2_max.dev_attr.attr, |
1055 | &sensor_dev_attr_in2_min.dev_attr.attr, |
1056 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1057 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
1058 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1059 | &sensor_dev_attr_temp1_fault.dev_attr.attr, |
1060 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1061 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
1062 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
1063 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, |
1064 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, |
1065 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
1066 | &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, |
1067 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
1068 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
1069 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
1070 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
1071 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
1072 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, |
1073 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, |
1074 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
1075 | &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, |
1076 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
1077 | &sensor_dev_attr_temp3_fault.dev_attr.attr, |
1078 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
1079 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
1080 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
1081 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
1082 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, |
1083 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, |
1084 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
1085 | &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, |
1086 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1087 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
1088 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1089 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1090 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
1091 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1092 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1093 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
1094 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1095 | &sensor_dev_attr_pwm1.dev_attr.attr, |
1096 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1097 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
1098 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
1099 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
1100 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, |
1101 | &sensor_dev_attr_pwm3.dev_attr.attr, |
1102 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, |
1103 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
1104 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
1105 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
1106 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, |
1107 | &dev_attr_pwm_use_point2_pwm_at_crit.attr, |
1108 | NULL, |
1109 | }; |
1110 | |
1111 | static struct attribute *fan4_attrs[] = { |
1112 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
1113 | &sensor_dev_attr_fan4_min.dev_attr.attr, |
1114 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1115 | NULL |
1116 | }; |
1117 | |
1118 | static struct attribute *pwm2_attrs[] = { |
1119 | &sensor_dev_attr_pwm2.dev_attr.attr, |
1120 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, |
1121 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
1122 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
1123 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
1124 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, |
1125 | NULL |
1126 | }; |
1127 | |
1128 | static struct attribute *in0_attrs[] = { |
1129 | &sensor_dev_attr_in0_input.dev_attr.attr, |
1130 | &sensor_dev_attr_in0_max.dev_attr.attr, |
1131 | &sensor_dev_attr_in0_min.dev_attr.attr, |
1132 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1133 | NULL |
1134 | }; |
1135 | |
1136 | static struct attribute *in3_attrs[] = { |
1137 | &sensor_dev_attr_in3_input.dev_attr.attr, |
1138 | &sensor_dev_attr_in3_max.dev_attr.attr, |
1139 | &sensor_dev_attr_in3_min.dev_attr.attr, |
1140 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1141 | NULL |
1142 | }; |
1143 | |
1144 | static struct attribute *in4_attrs[] = { |
1145 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1146 | &sensor_dev_attr_in4_max.dev_attr.attr, |
1147 | &sensor_dev_attr_in4_min.dev_attr.attr, |
1148 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
1149 | NULL |
1150 | }; |
1151 | |
1152 | static struct attribute *in5_attrs[] = { |
1153 | &sensor_dev_attr_in5_input.dev_attr.attr, |
1154 | &sensor_dev_attr_in5_max.dev_attr.attr, |
1155 | &sensor_dev_attr_in5_min.dev_attr.attr, |
1156 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1157 | NULL |
1158 | }; |
1159 | |
1160 | static struct attribute *vid_attrs[] = { |
1161 | &dev_attr_cpu0_vid.attr, |
1162 | &dev_attr_vrm.attr, |
1163 | NULL |
1164 | }; |
1165 | |
1166 | static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs }; |
1167 | static struct attribute_group fan4_attr_group = { .attrs = fan4_attrs }; |
1168 | static struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs }; |
1169 | static struct attribute_group in0_attr_group = { .attrs = in0_attrs }; |
1170 | static struct attribute_group in3_attr_group = { .attrs = in3_attrs }; |
1171 | static struct attribute_group in4_attr_group = { .attrs = in4_attrs }; |
1172 | static struct attribute_group in5_attr_group = { .attrs = in5_attrs }; |
1173 | static struct attribute_group vid_attr_group = { .attrs = vid_attrs }; |
1174 | |
1175 | static int adt7475_detect(struct i2c_client *client, |
1176 | struct i2c_board_info *info) |
1177 | { |
1178 | struct i2c_adapter *adapter = client->adapter; |
1179 | int vendid, devid, devid2; |
1180 | const char *name; |
1181 | |
1182 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
1183 | return -ENODEV; |
1184 | |
1185 | vendid = adt7475_read(REG_VENDID); |
1186 | devid2 = adt7475_read(REG_DEVID2); |
1187 | if (vendid != 0x41 || /* Analog Devices */ |
1188 | (devid2 & 0xf8) != 0x68) |
1189 | return -ENODEV; |
1190 | |
1191 | devid = adt7475_read(REG_DEVID); |
1192 | if (devid == 0x73) |
1193 | name = "adt7473"; |
1194 | else if (devid == 0x75 && client->addr == 0x2e) |
1195 | name = "adt7475"; |
1196 | else if (devid == 0x76) |
1197 | name = "adt7476"; |
1198 | else if ((devid2 & 0xfc) == 0x6c) |
1199 | name = "adt7490"; |
1200 | else { |
1201 | dev_dbg(&adapter->dev, |
1202 | "Couldn't detect an ADT7473/75/76/90 part at " |
1203 | "0x%02x\n", (unsigned int)client->addr); |
1204 | return -ENODEV; |
1205 | } |
1206 | |
1207 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1208 | |
1209 | return 0; |
1210 | } |
1211 | |
1212 | static void adt7475_remove_files(struct i2c_client *client, |
1213 | struct adt7475_data *data) |
1214 | { |
1215 | sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); |
1216 | if (data->has_fan4) |
1217 | sysfs_remove_group(&client->dev.kobj, &fan4_attr_group); |
1218 | if (data->has_pwm2) |
1219 | sysfs_remove_group(&client->dev.kobj, &pwm2_attr_group); |
1220 | if (data->has_voltage & (1 << 0)) |
1221 | sysfs_remove_group(&client->dev.kobj, &in0_attr_group); |
1222 | if (data->has_voltage & (1 << 3)) |
1223 | sysfs_remove_group(&client->dev.kobj, &in3_attr_group); |
1224 | if (data->has_voltage & (1 << 4)) |
1225 | sysfs_remove_group(&client->dev.kobj, &in4_attr_group); |
1226 | if (data->has_voltage & (1 << 5)) |
1227 | sysfs_remove_group(&client->dev.kobj, &in5_attr_group); |
1228 | if (data->has_vid) |
1229 | sysfs_remove_group(&client->dev.kobj, &vid_attr_group); |
1230 | } |
1231 | |
1232 | static int adt7475_probe(struct i2c_client *client, |
1233 | const struct i2c_device_id *id) |
1234 | { |
1235 | static const char *names[] = { |
1236 | [adt7473] = "ADT7473", |
1237 | [adt7475] = "ADT7475", |
1238 | [adt7476] = "ADT7476", |
1239 | [adt7490] = "ADT7490", |
1240 | }; |
1241 | |
1242 | struct adt7475_data *data; |
1243 | int i, ret = 0, revision; |
1244 | u8 config2, config3; |
1245 | |
1246 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
1247 | if (data == NULL) |
1248 | return -ENOMEM; |
1249 | |
1250 | mutex_init(&data->lock); |
1251 | i2c_set_clientdata(client, data); |
1252 | |
1253 | /* Initialize device-specific values */ |
1254 | switch (id->driver_data) { |
1255 | case adt7476: |
1256 | data->has_voltage = 0x0e; /* in1 to in3 */ |
1257 | revision = adt7475_read(REG_DEVID2) & 0x07; |
1258 | break; |
1259 | case adt7490: |
1260 | data->has_voltage = 0x3e; /* in1 to in5 */ |
1261 | revision = adt7475_read(REG_DEVID2) & 0x03; |
1262 | if (revision == 0x03) |
1263 | revision += adt7475_read(REG_DEVREV2); |
1264 | break; |
1265 | default: |
1266 | data->has_voltage = 0x06; /* in1, in2 */ |
1267 | revision = adt7475_read(REG_DEVID2) & 0x07; |
1268 | } |
1269 | |
1270 | config3 = adt7475_read(REG_CONFIG3); |
1271 | /* Pin PWM2 may alternatively be used for ALERT output */ |
1272 | if (!(config3 & CONFIG3_SMBALERT)) |
1273 | data->has_pwm2 = 1; |
1274 | /* Meaning of this bit is inverted for the ADT7473-1 */ |
1275 | if (id->driver_data == adt7473 && revision >= 1) |
1276 | data->has_pwm2 = !data->has_pwm2; |
1277 | |
1278 | data->config4 = adt7475_read(REG_CONFIG4); |
1279 | /* Pin TACH4 may alternatively be used for THERM */ |
1280 | if ((data->config4 & CONFIG4_PINFUNC) == 0x0) |
1281 | data->has_fan4 = 1; |
1282 | |
1283 | /* THERM configuration is more complex on the ADT7476 and ADT7490, |
1284 | because 2 different pins (TACH4 and +2.5 Vin) can be used for |
1285 | this function */ |
1286 | if (id->driver_data == adt7490) { |
1287 | if ((data->config4 & CONFIG4_PINFUNC) == 0x1 && |
1288 | !(config3 & CONFIG3_THERM)) |
1289 | data->has_fan4 = 1; |
1290 | } |
1291 | if (id->driver_data == adt7476 || id->driver_data == adt7490) { |
1292 | if (!(config3 & CONFIG3_THERM) || |
1293 | (data->config4 & CONFIG4_PINFUNC) == 0x1) |
1294 | data->has_voltage |= (1 << 0); /* in0 */ |
1295 | } |
1296 | |
1297 | /* On the ADT7476, the +12V input pin may instead be used as VID5, |
1298 | and VID pins may alternatively be used as GPIO */ |
1299 | if (id->driver_data == adt7476) { |
1300 | u8 vid = adt7475_read(REG_VID); |
1301 | if (!(vid & VID_VIDSEL)) |
1302 | data->has_voltage |= (1 << 4); /* in4 */ |
1303 | |
1304 | data->has_vid = !(adt7475_read(REG_CONFIG5) & CONFIG5_VIDGPIO); |
1305 | } |
1306 | |
1307 | /* Voltage attenuators can be bypassed, globally or individually */ |
1308 | config2 = adt7475_read(REG_CONFIG2); |
1309 | if (config2 & CONFIG2_ATTN) { |
1310 | data->bypass_attn = (0x3 << 3) | 0x3; |
1311 | } else { |
1312 | data->bypass_attn = ((data->config4 & CONFIG4_ATTN_IN10) >> 4) | |
1313 | ((data->config4 & CONFIG4_ATTN_IN43) >> 3); |
1314 | } |
1315 | data->bypass_attn &= data->has_voltage; |
1316 | |
1317 | /* Call adt7475_read_pwm for all pwm's as this will reprogram any |
1318 | pwm's which are disabled to manual mode with 0% duty cycle */ |
1319 | for (i = 0; i < ADT7475_PWM_COUNT; i++) |
1320 | adt7475_read_pwm(client, i); |
1321 | |
1322 | ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group); |
1323 | if (ret) |
1324 | goto efree; |
1325 | |
1326 | /* Features that can be disabled individually */ |
1327 | if (data->has_fan4) { |
1328 | ret = sysfs_create_group(&client->dev.kobj, &fan4_attr_group); |
1329 | if (ret) |
1330 | goto eremove; |
1331 | } |
1332 | if (data->has_pwm2) { |
1333 | ret = sysfs_create_group(&client->dev.kobj, &pwm2_attr_group); |
1334 | if (ret) |
1335 | goto eremove; |
1336 | } |
1337 | if (data->has_voltage & (1 << 0)) { |
1338 | ret = sysfs_create_group(&client->dev.kobj, &in0_attr_group); |
1339 | if (ret) |
1340 | goto eremove; |
1341 | } |
1342 | if (data->has_voltage & (1 << 3)) { |
1343 | ret = sysfs_create_group(&client->dev.kobj, &in3_attr_group); |
1344 | if (ret) |
1345 | goto eremove; |
1346 | } |
1347 | if (data->has_voltage & (1 << 4)) { |
1348 | ret = sysfs_create_group(&client->dev.kobj, &in4_attr_group); |
1349 | if (ret) |
1350 | goto eremove; |
1351 | } |
1352 | if (data->has_voltage & (1 << 5)) { |
1353 | ret = sysfs_create_group(&client->dev.kobj, &in5_attr_group); |
1354 | if (ret) |
1355 | goto eremove; |
1356 | } |
1357 | if (data->has_vid) { |
1358 | data->vrm = vid_which_vrm(); |
1359 | ret = sysfs_create_group(&client->dev.kobj, &vid_attr_group); |
1360 | if (ret) |
1361 | goto eremove; |
1362 | } |
1363 | |
1364 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1365 | if (IS_ERR(data->hwmon_dev)) { |
1366 | ret = PTR_ERR(data->hwmon_dev); |
1367 | goto eremove; |
1368 | } |
1369 | |
1370 | dev_info(&client->dev, "%s device, revision %d\n", |
1371 | names[id->driver_data], revision); |
1372 | if ((data->has_voltage & 0x11) || data->has_fan4 || data->has_pwm2) |
1373 | dev_info(&client->dev, "Optional features:%s%s%s%s%s\n", |
1374 | (data->has_voltage & (1 << 0)) ? " in0" : "", |
1375 | (data->has_voltage & (1 << 4)) ? " in4" : "", |
1376 | data->has_fan4 ? " fan4" : "", |
1377 | data->has_pwm2 ? " pwm2" : "", |
1378 | data->has_vid ? " vid" : ""); |
1379 | if (data->bypass_attn) |
1380 | dev_info(&client->dev, "Bypassing attenuators on:%s%s%s%s\n", |
1381 | (data->bypass_attn & (1 << 0)) ? " in0" : "", |
1382 | (data->bypass_attn & (1 << 1)) ? " in1" : "", |
1383 | (data->bypass_attn & (1 << 3)) ? " in3" : "", |
1384 | (data->bypass_attn & (1 << 4)) ? " in4" : ""); |
1385 | |
1386 | return 0; |
1387 | |
1388 | eremove: |
1389 | adt7475_remove_files(client, data); |
1390 | efree: |
1391 | kfree(data); |
1392 | return ret; |
1393 | } |
1394 | |
1395 | static int adt7475_remove(struct i2c_client *client) |
1396 | { |
1397 | struct adt7475_data *data = i2c_get_clientdata(client); |
1398 | |
1399 | hwmon_device_unregister(data->hwmon_dev); |
1400 | adt7475_remove_files(client, data); |
1401 | kfree(data); |
1402 | |
1403 | return 0; |
1404 | } |
1405 | |
1406 | static struct i2c_driver adt7475_driver = { |
1407 | .class = I2C_CLASS_HWMON, |
1408 | .driver = { |
1409 | .name = "adt7475", |
1410 | }, |
1411 | .probe = adt7475_probe, |
1412 | .remove = adt7475_remove, |
1413 | .id_table = adt7475_id, |
1414 | .detect = adt7475_detect, |
1415 | .address_list = normal_i2c, |
1416 | }; |
1417 | |
1418 | static void adt7475_read_hystersis(struct i2c_client *client) |
1419 | { |
1420 | struct adt7475_data *data = i2c_get_clientdata(client); |
1421 | |
1422 | data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS); |
1423 | data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0]; |
1424 | data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS); |
1425 | } |
1426 | |
1427 | static void adt7475_read_pwm(struct i2c_client *client, int index) |
1428 | { |
1429 | struct adt7475_data *data = i2c_get_clientdata(client); |
1430 | unsigned int v; |
1431 | |
1432 | data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index)); |
1433 | |
1434 | /* Figure out the internal value for pwmctrl and pwmchan |
1435 | based on the current settings */ |
1436 | v = (data->pwm[CONTROL][index] >> 5) & 7; |
1437 | |
1438 | if (v == 3) |
1439 | data->pwmctl[index] = 0; |
1440 | else if (v == 7) |
1441 | data->pwmctl[index] = 1; |
1442 | else if (v == 4) { |
1443 | /* The fan is disabled - we don't want to |
1444 | support that, so change to manual mode and |
1445 | set the duty cycle to 0 instead |
1446 | */ |
1447 | data->pwm[INPUT][index] = 0; |
1448 | data->pwm[CONTROL][index] &= ~0xE0; |
1449 | data->pwm[CONTROL][index] |= (7 << 5); |
1450 | |
1451 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
1452 | data->pwm[INPUT][index]); |
1453 | |
1454 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
1455 | data->pwm[CONTROL][index]); |
1456 | |
1457 | data->pwmctl[index] = 1; |
1458 | } else { |
1459 | data->pwmctl[index] = 2; |
1460 | |
1461 | switch (v) { |
1462 | case 0: |
1463 | data->pwmchan[index] = 1; |
1464 | break; |
1465 | case 1: |
1466 | data->pwmchan[index] = 2; |
1467 | break; |
1468 | case 2: |
1469 | data->pwmchan[index] = 4; |
1470 | break; |
1471 | case 5: |
1472 | data->pwmchan[index] = 6; |
1473 | break; |
1474 | case 6: |
1475 | data->pwmchan[index] = 7; |
1476 | break; |
1477 | } |
1478 | } |
1479 | } |
1480 | |
1481 | static struct adt7475_data *adt7475_update_device(struct device *dev) |
1482 | { |
1483 | struct i2c_client *client = to_i2c_client(dev); |
1484 | struct adt7475_data *data = i2c_get_clientdata(client); |
1485 | u16 ext; |
1486 | int i; |
1487 | |
1488 | mutex_lock(&data->lock); |
1489 | |
1490 | /* Measurement values update every 2 seconds */ |
1491 | if (time_after(jiffies, data->measure_updated + HZ * 2) || |
1492 | !data->valid) { |
1493 | data->alarms = adt7475_read(REG_STATUS2) << 8; |
1494 | data->alarms |= adt7475_read(REG_STATUS1); |
1495 | |
1496 | ext = (adt7475_read(REG_EXTEND2) << 8) | |
1497 | adt7475_read(REG_EXTEND1); |
1498 | for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
1499 | if (!(data->has_voltage & (1 << i))) |
1500 | continue; |
1501 | data->voltage[INPUT][i] = |
1502 | (adt7475_read(VOLTAGE_REG(i)) << 2) | |
1503 | ((ext >> (i * 2)) & 3); |
1504 | } |
1505 | |
1506 | for (i = 0; i < ADT7475_TEMP_COUNT; i++) |
1507 | data->temp[INPUT][i] = |
1508 | (adt7475_read(TEMP_REG(i)) << 2) | |
1509 | ((ext >> ((i + 5) * 2)) & 3); |
1510 | |
1511 | if (data->has_voltage & (1 << 5)) { |
1512 | data->alarms |= adt7475_read(REG_STATUS4) << 24; |
1513 | ext = adt7475_read(REG_EXTEND3); |
1514 | data->voltage[INPUT][5] = adt7475_read(REG_VTT) << 2 | |
1515 | ((ext >> 4) & 3); |
1516 | } |
1517 | |
1518 | for (i = 0; i < ADT7475_TACH_COUNT; i++) { |
1519 | if (i == 3 && !data->has_fan4) |
1520 | continue; |
1521 | data->tach[INPUT][i] = |
1522 | adt7475_read_word(client, TACH_REG(i)); |
1523 | } |
1524 | |
1525 | /* Updated by hw when in auto mode */ |
1526 | for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
1527 | if (i == 1 && !data->has_pwm2) |
1528 | continue; |
1529 | data->pwm[INPUT][i] = adt7475_read(PWM_REG(i)); |
1530 | } |
1531 | |
1532 | if (data->has_vid) |
1533 | data->vid = adt7475_read(REG_VID) & 0x3f; |
1534 | |
1535 | data->measure_updated = jiffies; |
1536 | } |
1537 | |
1538 | /* Limits and settings, should never change update every 60 seconds */ |
1539 | if (time_after(jiffies, data->limits_updated + HZ * 60) || |
1540 | !data->valid) { |
1541 | data->config4 = adt7475_read(REG_CONFIG4); |
1542 | data->config5 = adt7475_read(REG_CONFIG5); |
1543 | |
1544 | for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
1545 | if (!(data->has_voltage & (1 << i))) |
1546 | continue; |
1547 | /* Adjust values so they match the input precision */ |
1548 | data->voltage[MIN][i] = |
1549 | adt7475_read(VOLTAGE_MIN_REG(i)) << 2; |
1550 | data->voltage[MAX][i] = |
1551 | adt7475_read(VOLTAGE_MAX_REG(i)) << 2; |
1552 | } |
1553 | |
1554 | if (data->has_voltage & (1 << 5)) { |
1555 | data->voltage[MIN][5] = adt7475_read(REG_VTT_MIN) << 2; |
1556 | data->voltage[MAX][5] = adt7475_read(REG_VTT_MAX) << 2; |
1557 | } |
1558 | |
1559 | for (i = 0; i < ADT7475_TEMP_COUNT; i++) { |
1560 | /* Adjust values so they match the input precision */ |
1561 | data->temp[MIN][i] = |
1562 | adt7475_read(TEMP_MIN_REG(i)) << 2; |
1563 | data->temp[MAX][i] = |
1564 | adt7475_read(TEMP_MAX_REG(i)) << 2; |
1565 | data->temp[AUTOMIN][i] = |
1566 | adt7475_read(TEMP_TMIN_REG(i)) << 2; |
1567 | data->temp[THERM][i] = |
1568 | adt7475_read(TEMP_THERM_REG(i)) << 2; |
1569 | data->temp[OFFSET][i] = |
1570 | adt7475_read(TEMP_OFFSET_REG(i)); |
1571 | } |
1572 | adt7475_read_hystersis(client); |
1573 | |
1574 | for (i = 0; i < ADT7475_TACH_COUNT; i++) { |
1575 | if (i == 3 && !data->has_fan4) |
1576 | continue; |
1577 | data->tach[MIN][i] = |
1578 | adt7475_read_word(client, TACH_MIN_REG(i)); |
1579 | } |
1580 | |
1581 | for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
1582 | if (i == 1 && !data->has_pwm2) |
1583 | continue; |
1584 | data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i)); |
1585 | data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i)); |
1586 | /* Set the channel and control information */ |
1587 | adt7475_read_pwm(client, i); |
1588 | } |
1589 | |
1590 | data->range[0] = adt7475_read(TEMP_TRANGE_REG(0)); |
1591 | data->range[1] = adt7475_read(TEMP_TRANGE_REG(1)); |
1592 | data->range[2] = adt7475_read(TEMP_TRANGE_REG(2)); |
1593 | |
1594 | data->limits_updated = jiffies; |
1595 | data->valid = 1; |
1596 | } |
1597 | |
1598 | mutex_unlock(&data->lock); |
1599 | |
1600 | return data; |
1601 | } |
1602 | |
1603 | static int __init sensors_adt7475_init(void) |
1604 | { |
1605 | return i2c_add_driver(&adt7475_driver); |
1606 | } |
1607 | |
1608 | static void __exit sensors_adt7475_exit(void) |
1609 | { |
1610 | i2c_del_driver(&adt7475_driver); |
1611 | } |
1612 | |
1613 | MODULE_AUTHOR("Advanced Micro Devices, Inc"); |
1614 | MODULE_DESCRIPTION("adt7475 driver"); |
1615 | MODULE_LICENSE("GPL"); |
1616 | |
1617 | module_init(sensors_adt7475_init); |
1618 | module_exit(sensors_adt7475_exit); |
1619 |
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