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Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
[deliverable/linux.git] / drivers / hwmon / f71805f.c
1 /*
2 * f71805f.c - driver for the Fintek F71805F/FG and F71872F/FG Super-I/O
3 * chips integrated hardware monitoring features
4 * Copyright (C) 2005-2006 Jean Delvare <khali@linux-fr.org>
5 *
6 * The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates
7 * complete hardware monitoring features: voltage, fan and temperature
8 * sensors, and manual and automatic fan speed control.
9 *
10 * The F71872F/FG is almost the same, with two more voltages monitored,
11 * and 6 VID inputs.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 */
27
28 #include <linux/module.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/jiffies.h>
32 #include <linux/platform_device.h>
33 #include <linux/hwmon.h>
34 #include <linux/hwmon-sysfs.h>
35 #include <linux/err.h>
36 #include <linux/mutex.h>
37 #include <linux/sysfs.h>
38 #include <asm/io.h>
39
40 static struct platform_device *pdev;
41
42 #define DRVNAME "f71805f"
43 enum kinds { f71805f, f71872f };
44
45 /*
46 * Super-I/O constants and functions
47 */
48
49 #define F71805F_LD_HWM 0x04
50
51 #define SIO_REG_LDSEL 0x07 /* Logical device select */
52 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
53 #define SIO_REG_DEVREV 0x22 /* Device revision */
54 #define SIO_REG_MANID 0x23 /* Fintek ID (2 bytes) */
55 #define SIO_REG_FNSEL1 0x29 /* Multi Function Select 1 (F71872F) */
56 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
57 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
58
59 #define SIO_FINTEK_ID 0x1934
60 #define SIO_F71805F_ID 0x0406
61 #define SIO_F71872F_ID 0x0341
62
63 static inline int
64 superio_inb(int base, int reg)
65 {
66 outb(reg, base);
67 return inb(base + 1);
68 }
69
70 static int
71 superio_inw(int base, int reg)
72 {
73 int val;
74 outb(reg++, base);
75 val = inb(base + 1) << 8;
76 outb(reg, base);
77 val |= inb(base + 1);
78 return val;
79 }
80
81 static inline void
82 superio_select(int base, int ld)
83 {
84 outb(SIO_REG_LDSEL, base);
85 outb(ld, base + 1);
86 }
87
88 static inline void
89 superio_enter(int base)
90 {
91 outb(0x87, base);
92 outb(0x87, base);
93 }
94
95 static inline void
96 superio_exit(int base)
97 {
98 outb(0xaa, base);
99 }
100
101 /*
102 * ISA constants
103 */
104
105 #define REGION_LENGTH 8
106 #define ADDR_REG_OFFSET 5
107 #define DATA_REG_OFFSET 6
108
109 /*
110 * Registers
111 */
112
113 /* in nr from 0 to 10 (8-bit values) */
114 #define F71805F_REG_IN(nr) (0x10 + (nr))
115 #define F71805F_REG_IN_HIGH(nr) ((nr) < 10 ? 0x40 + 2 * (nr) : 0x2E)
116 #define F71805F_REG_IN_LOW(nr) ((nr) < 10 ? 0x41 + 2 * (nr) : 0x2F)
117 /* fan nr from 0 to 2 (12-bit values, two registers) */
118 #define F71805F_REG_FAN(nr) (0x20 + 2 * (nr))
119 #define F71805F_REG_FAN_LOW(nr) (0x28 + 2 * (nr))
120 #define F71805F_REG_FAN_TARGET(nr) (0x69 + 16 * (nr))
121 #define F71805F_REG_FAN_CTRL(nr) (0x60 + 16 * (nr))
122 #define F71805F_REG_PWM_FREQ(nr) (0x63 + 16 * (nr))
123 #define F71805F_REG_PWM_DUTY(nr) (0x6B + 16 * (nr))
124 /* temp nr from 0 to 2 (8-bit values) */
125 #define F71805F_REG_TEMP(nr) (0x1B + (nr))
126 #define F71805F_REG_TEMP_HIGH(nr) (0x54 + 2 * (nr))
127 #define F71805F_REG_TEMP_HYST(nr) (0x55 + 2 * (nr))
128 #define F71805F_REG_TEMP_MODE 0x01
129
130 #define F71805F_REG_START 0x00
131 /* status nr from 0 to 2 */
132 #define F71805F_REG_STATUS(nr) (0x36 + (nr))
133
134 /* individual register bits */
135 #define FAN_CTRL_DC_MODE 0x10
136 #define FAN_CTRL_LATCH_FULL 0x08
137 #define FAN_CTRL_MODE_MASK 0x03
138 #define FAN_CTRL_MODE_SPEED 0x00
139 #define FAN_CTRL_MODE_TEMPERATURE 0x01
140 #define FAN_CTRL_MODE_MANUAL 0x02
141
142 /*
143 * Data structures and manipulation thereof
144 */
145
146 struct f71805f_data {
147 unsigned short addr;
148 const char *name;
149 struct class_device *class_dev;
150
151 struct mutex update_lock;
152 char valid; /* !=0 if following fields are valid */
153 unsigned long last_updated; /* In jiffies */
154 unsigned long last_limits; /* In jiffies */
155
156 /* Register values */
157 u8 in[11];
158 u8 in_high[11];
159 u8 in_low[11];
160 u16 has_in;
161 u16 fan[3];
162 u16 fan_low[3];
163 u16 fan_target[3];
164 u8 fan_ctrl[3];
165 u8 pwm[3];
166 u8 pwm_freq[3];
167 u8 temp[3];
168 u8 temp_high[3];
169 u8 temp_hyst[3];
170 u8 temp_mode;
171 unsigned long alarms;
172 };
173
174 struct f71805f_sio_data {
175 enum kinds kind;
176 u8 fnsel1;
177 };
178
179 static inline long in_from_reg(u8 reg)
180 {
181 return (reg * 8);
182 }
183
184 /* The 2 least significant bits are not used */
185 static inline u8 in_to_reg(long val)
186 {
187 if (val <= 0)
188 return 0;
189 if (val >= 2016)
190 return 0xfc;
191 return (((val + 16) / 32) << 2);
192 }
193
194 /* in0 is downscaled by a factor 2 internally */
195 static inline long in0_from_reg(u8 reg)
196 {
197 return (reg * 16);
198 }
199
200 static inline u8 in0_to_reg(long val)
201 {
202 if (val <= 0)
203 return 0;
204 if (val >= 4032)
205 return 0xfc;
206 return (((val + 32) / 64) << 2);
207 }
208
209 /* The 4 most significant bits are not used */
210 static inline long fan_from_reg(u16 reg)
211 {
212 reg &= 0xfff;
213 if (!reg || reg == 0xfff)
214 return 0;
215 return (1500000 / reg);
216 }
217
218 static inline u16 fan_to_reg(long rpm)
219 {
220 /* If the low limit is set below what the chip can measure,
221 store the largest possible 12-bit value in the registers,
222 so that no alarm will ever trigger. */
223 if (rpm < 367)
224 return 0xfff;
225 return (1500000 / rpm);
226 }
227
228 static inline unsigned long pwm_freq_from_reg(u8 reg)
229 {
230 unsigned long clock = (reg & 0x80) ? 48000000UL : 1000000UL;
231
232 reg &= 0x7f;
233 if (reg == 0)
234 reg++;
235 return clock / (reg << 8);
236 }
237
238 static inline u8 pwm_freq_to_reg(unsigned long val)
239 {
240 if (val >= 187500) /* The highest we can do */
241 return 0x80;
242 if (val >= 1475) /* Use 48 MHz clock */
243 return 0x80 | (48000000UL / (val << 8));
244 if (val < 31) /* The lowest we can do */
245 return 0x7f;
246 else /* Use 1 MHz clock */
247 return 1000000UL / (val << 8);
248 }
249
250 static inline int pwm_mode_from_reg(u8 reg)
251 {
252 return !(reg & FAN_CTRL_DC_MODE);
253 }
254
255 static inline long temp_from_reg(u8 reg)
256 {
257 return (reg * 1000);
258 }
259
260 static inline u8 temp_to_reg(long val)
261 {
262 if (val < 0)
263 val = 0;
264 else if (val > 1000 * 0xff)
265 val = 0xff;
266 return ((val + 500) / 1000);
267 }
268
269 /*
270 * Device I/O access
271 */
272
273 /* Must be called with data->update_lock held, except during initialization */
274 static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
275 {
276 outb(reg, data->addr + ADDR_REG_OFFSET);
277 return inb(data->addr + DATA_REG_OFFSET);
278 }
279
280 /* Must be called with data->update_lock held, except during initialization */
281 static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
282 {
283 outb(reg, data->addr + ADDR_REG_OFFSET);
284 outb(val, data->addr + DATA_REG_OFFSET);
285 }
286
287 /* It is important to read the MSB first, because doing so latches the
288 value of the LSB, so we are sure both bytes belong to the same value.
289 Must be called with data->update_lock held, except during initialization */
290 static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
291 {
292 u16 val;
293
294 outb(reg, data->addr + ADDR_REG_OFFSET);
295 val = inb(data->addr + DATA_REG_OFFSET) << 8;
296 outb(++reg, data->addr + ADDR_REG_OFFSET);
297 val |= inb(data->addr + DATA_REG_OFFSET);
298
299 return val;
300 }
301
302 /* Must be called with data->update_lock held, except during initialization */
303 static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
304 {
305 outb(reg, data->addr + ADDR_REG_OFFSET);
306 outb(val >> 8, data->addr + DATA_REG_OFFSET);
307 outb(++reg, data->addr + ADDR_REG_OFFSET);
308 outb(val & 0xff, data->addr + DATA_REG_OFFSET);
309 }
310
311 static struct f71805f_data *f71805f_update_device(struct device *dev)
312 {
313 struct f71805f_data *data = dev_get_drvdata(dev);
314 int nr;
315
316 mutex_lock(&data->update_lock);
317
318 /* Limit registers cache is refreshed after 60 seconds */
319 if (time_after(jiffies, data->last_updated + 60 * HZ)
320 || !data->valid) {
321 for (nr = 0; nr < 11; nr++) {
322 if (!(data->has_in & (1 << nr)))
323 continue;
324 data->in_high[nr] = f71805f_read8(data,
325 F71805F_REG_IN_HIGH(nr));
326 data->in_low[nr] = f71805f_read8(data,
327 F71805F_REG_IN_LOW(nr));
328 }
329 for (nr = 0; nr < 3; nr++) {
330 data->fan_low[nr] = f71805f_read16(data,
331 F71805F_REG_FAN_LOW(nr));
332 data->fan_target[nr] = f71805f_read16(data,
333 F71805F_REG_FAN_TARGET(nr));
334 data->pwm_freq[nr] = f71805f_read8(data,
335 F71805F_REG_PWM_FREQ(nr));
336 }
337 for (nr = 0; nr < 3; nr++) {
338 data->temp_high[nr] = f71805f_read8(data,
339 F71805F_REG_TEMP_HIGH(nr));
340 data->temp_hyst[nr] = f71805f_read8(data,
341 F71805F_REG_TEMP_HYST(nr));
342 }
343 data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
344
345 data->last_limits = jiffies;
346 }
347
348 /* Measurement registers cache is refreshed after 1 second */
349 if (time_after(jiffies, data->last_updated + HZ)
350 || !data->valid) {
351 for (nr = 0; nr < 11; nr++) {
352 if (!(data->has_in & (1 << nr)))
353 continue;
354 data->in[nr] = f71805f_read8(data,
355 F71805F_REG_IN(nr));
356 }
357 for (nr = 0; nr < 3; nr++) {
358 data->fan[nr] = f71805f_read16(data,
359 F71805F_REG_FAN(nr));
360 data->fan_ctrl[nr] = f71805f_read8(data,
361 F71805F_REG_FAN_CTRL(nr));
362 data->pwm[nr] = f71805f_read8(data,
363 F71805F_REG_PWM_DUTY(nr));
364 }
365 for (nr = 0; nr < 3; nr++) {
366 data->temp[nr] = f71805f_read8(data,
367 F71805F_REG_TEMP(nr));
368 }
369 data->alarms = f71805f_read8(data, F71805F_REG_STATUS(0))
370 + (f71805f_read8(data, F71805F_REG_STATUS(1)) << 8)
371 + (f71805f_read8(data, F71805F_REG_STATUS(2)) << 16);
372
373 data->last_updated = jiffies;
374 data->valid = 1;
375 }
376
377 mutex_unlock(&data->update_lock);
378
379 return data;
380 }
381
382 /*
383 * Sysfs interface
384 */
385
386 static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
387 char *buf)
388 {
389 struct f71805f_data *data = f71805f_update_device(dev);
390 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
391 int nr = attr->index;
392
393 return sprintf(buf, "%ld\n", in0_from_reg(data->in[nr]));
394 }
395
396 static ssize_t show_in0_max(struct device *dev, struct device_attribute
397 *devattr, char *buf)
398 {
399 struct f71805f_data *data = f71805f_update_device(dev);
400 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
401 int nr = attr->index;
402
403 return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[nr]));
404 }
405
406 static ssize_t show_in0_min(struct device *dev, struct device_attribute
407 *devattr, char *buf)
408 {
409 struct f71805f_data *data = f71805f_update_device(dev);
410 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
411 int nr = attr->index;
412
413 return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[nr]));
414 }
415
416 static ssize_t set_in0_max(struct device *dev, struct device_attribute
417 *devattr, const char *buf, size_t count)
418 {
419 struct f71805f_data *data = dev_get_drvdata(dev);
420 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
421 int nr = attr->index;
422 long val = simple_strtol(buf, NULL, 10);
423
424 mutex_lock(&data->update_lock);
425 data->in_high[nr] = in0_to_reg(val);
426 f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
427 mutex_unlock(&data->update_lock);
428
429 return count;
430 }
431
432 static ssize_t set_in0_min(struct device *dev, struct device_attribute
433 *devattr, const char *buf, size_t count)
434 {
435 struct f71805f_data *data = dev_get_drvdata(dev);
436 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
437 int nr = attr->index;
438 long val = simple_strtol(buf, NULL, 10);
439
440 mutex_lock(&data->update_lock);
441 data->in_low[nr] = in0_to_reg(val);
442 f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
443 mutex_unlock(&data->update_lock);
444
445 return count;
446 }
447
448 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
449 char *buf)
450 {
451 struct f71805f_data *data = f71805f_update_device(dev);
452 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
453 int nr = attr->index;
454
455 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
456 }
457
458 static ssize_t show_in_max(struct device *dev, struct device_attribute
459 *devattr, char *buf)
460 {
461 struct f71805f_data *data = f71805f_update_device(dev);
462 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
463 int nr = attr->index;
464
465 return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
466 }
467
468 static ssize_t show_in_min(struct device *dev, struct device_attribute
469 *devattr, char *buf)
470 {
471 struct f71805f_data *data = f71805f_update_device(dev);
472 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
473 int nr = attr->index;
474
475 return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
476 }
477
478 static ssize_t set_in_max(struct device *dev, struct device_attribute
479 *devattr, const char *buf, size_t count)
480 {
481 struct f71805f_data *data = dev_get_drvdata(dev);
482 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
483 int nr = attr->index;
484 long val = simple_strtol(buf, NULL, 10);
485
486 mutex_lock(&data->update_lock);
487 data->in_high[nr] = in_to_reg(val);
488 f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
489 mutex_unlock(&data->update_lock);
490
491 return count;
492 }
493
494 static ssize_t set_in_min(struct device *dev, struct device_attribute
495 *devattr, const char *buf, size_t count)
496 {
497 struct f71805f_data *data = dev_get_drvdata(dev);
498 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
499 int nr = attr->index;
500 long val = simple_strtol(buf, NULL, 10);
501
502 mutex_lock(&data->update_lock);
503 data->in_low[nr] = in_to_reg(val);
504 f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
505 mutex_unlock(&data->update_lock);
506
507 return count;
508 }
509
510 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
511 char *buf)
512 {
513 struct f71805f_data *data = f71805f_update_device(dev);
514 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
515 int nr = attr->index;
516
517 return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
518 }
519
520 static ssize_t show_fan_min(struct device *dev, struct device_attribute
521 *devattr, char *buf)
522 {
523 struct f71805f_data *data = f71805f_update_device(dev);
524 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
525 int nr = attr->index;
526
527 return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
528 }
529
530 static ssize_t show_fan_target(struct device *dev, struct device_attribute
531 *devattr, char *buf)
532 {
533 struct f71805f_data *data = f71805f_update_device(dev);
534 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
535 int nr = attr->index;
536
537 return sprintf(buf, "%ld\n", fan_from_reg(data->fan_target[nr]));
538 }
539
540 static ssize_t set_fan_min(struct device *dev, struct device_attribute
541 *devattr, const char *buf, size_t count)
542 {
543 struct f71805f_data *data = dev_get_drvdata(dev);
544 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
545 int nr = attr->index;
546 long val = simple_strtol(buf, NULL, 10);
547
548 mutex_lock(&data->update_lock);
549 data->fan_low[nr] = fan_to_reg(val);
550 f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
551 mutex_unlock(&data->update_lock);
552
553 return count;
554 }
555
556 static ssize_t set_fan_target(struct device *dev, struct device_attribute
557 *devattr, const char *buf, size_t count)
558 {
559 struct f71805f_data *data = dev_get_drvdata(dev);
560 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
561 int nr = attr->index;
562 long val = simple_strtol(buf, NULL, 10);
563
564 mutex_lock(&data->update_lock);
565 data->fan_target[nr] = fan_to_reg(val);
566 f71805f_write16(data, F71805F_REG_FAN_TARGET(nr),
567 data->fan_target[nr]);
568 mutex_unlock(&data->update_lock);
569
570 return count;
571 }
572
573 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
574 char *buf)
575 {
576 struct f71805f_data *data = f71805f_update_device(dev);
577 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
578 int nr = attr->index;
579
580 return sprintf(buf, "%d\n", (int)data->pwm[nr]);
581 }
582
583 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
584 *devattr, char *buf)
585 {
586 struct f71805f_data *data = f71805f_update_device(dev);
587 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
588 int nr = attr->index;
589 int mode;
590
591 switch (data->fan_ctrl[nr] & FAN_CTRL_MODE_MASK) {
592 case FAN_CTRL_MODE_SPEED:
593 mode = 3;
594 break;
595 case FAN_CTRL_MODE_TEMPERATURE:
596 mode = 2;
597 break;
598 default: /* MANUAL */
599 mode = 1;
600 }
601
602 return sprintf(buf, "%d\n", mode);
603 }
604
605 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute
606 *devattr, char *buf)
607 {
608 struct f71805f_data *data = f71805f_update_device(dev);
609 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
610 int nr = attr->index;
611
612 return sprintf(buf, "%lu\n", pwm_freq_from_reg(data->pwm_freq[nr]));
613 }
614
615 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
616 *devattr, char *buf)
617 {
618 struct f71805f_data *data = f71805f_update_device(dev);
619 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
620 int nr = attr->index;
621
622 return sprintf(buf, "%d\n", pwm_mode_from_reg(data->fan_ctrl[nr]));
623 }
624
625 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
626 const char *buf, size_t count)
627 {
628 struct f71805f_data *data = dev_get_drvdata(dev);
629 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
630 int nr = attr->index;
631 unsigned long val = simple_strtoul(buf, NULL, 10);
632
633 if (val > 255)
634 return -EINVAL;
635
636 mutex_lock(&data->update_lock);
637 data->pwm[nr] = val;
638 f71805f_write8(data, F71805F_REG_PWM_DUTY(nr), data->pwm[nr]);
639 mutex_unlock(&data->update_lock);
640
641 return count;
642 }
643
644 static struct attribute *f71805f_attr_pwm[];
645
646 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
647 *devattr, const char *buf, size_t count)
648 {
649 struct f71805f_data *data = dev_get_drvdata(dev);
650 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
651 int nr = attr->index;
652 unsigned long val = simple_strtoul(buf, NULL, 10);
653 u8 reg;
654
655 if (val < 1 || val > 3)
656 return -EINVAL;
657
658 if (val > 1) { /* Automatic mode, user can't set PWM value */
659 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
660 S_IRUGO))
661 dev_dbg(dev, "chmod -w pwm%d failed\n", nr + 1);
662 }
663
664 mutex_lock(&data->update_lock);
665 reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(nr))
666 & ~FAN_CTRL_MODE_MASK;
667 switch (val) {
668 case 1:
669 reg |= FAN_CTRL_MODE_MANUAL;
670 break;
671 case 2:
672 reg |= FAN_CTRL_MODE_TEMPERATURE;
673 break;
674 case 3:
675 reg |= FAN_CTRL_MODE_SPEED;
676 break;
677 }
678 data->fan_ctrl[nr] = reg;
679 f71805f_write8(data, F71805F_REG_FAN_CTRL(nr), reg);
680 mutex_unlock(&data->update_lock);
681
682 if (val == 1) { /* Manual mode, user can set PWM value */
683 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
684 S_IRUGO | S_IWUSR))
685 dev_dbg(dev, "chmod +w pwm%d failed\n", nr + 1);
686 }
687
688 return count;
689 }
690
691 static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
692 *devattr, const char *buf, size_t count)
693 {
694 struct f71805f_data *data = dev_get_drvdata(dev);
695 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
696 int nr = attr->index;
697 unsigned long val = simple_strtoul(buf, NULL, 10);
698
699 mutex_lock(&data->update_lock);
700 data->pwm_freq[nr] = pwm_freq_to_reg(val);
701 f71805f_write8(data, F71805F_REG_PWM_FREQ(nr), data->pwm_freq[nr]);
702 mutex_unlock(&data->update_lock);
703
704 return count;
705 }
706
707 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
708 char *buf)
709 {
710 struct f71805f_data *data = f71805f_update_device(dev);
711 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
712 int nr = attr->index;
713
714 return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
715 }
716
717 static ssize_t show_temp_max(struct device *dev, struct device_attribute
718 *devattr, char *buf)
719 {
720 struct f71805f_data *data = f71805f_update_device(dev);
721 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
722 int nr = attr->index;
723
724 return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
725 }
726
727 static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
728 *devattr, char *buf)
729 {
730 struct f71805f_data *data = f71805f_update_device(dev);
731 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
732 int nr = attr->index;
733
734 return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
735 }
736
737 static ssize_t show_temp_type(struct device *dev, struct device_attribute
738 *devattr, char *buf)
739 {
740 struct f71805f_data *data = f71805f_update_device(dev);
741 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
742 int nr = attr->index;
743
744 /* 3 is diode, 4 is thermistor */
745 return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
746 }
747
748 static ssize_t set_temp_max(struct device *dev, struct device_attribute
749 *devattr, const char *buf, size_t count)
750 {
751 struct f71805f_data *data = dev_get_drvdata(dev);
752 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
753 int nr = attr->index;
754 long val = simple_strtol(buf, NULL, 10);
755
756 mutex_lock(&data->update_lock);
757 data->temp_high[nr] = temp_to_reg(val);
758 f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
759 mutex_unlock(&data->update_lock);
760
761 return count;
762 }
763
764 static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
765 *devattr, const char *buf, size_t count)
766 {
767 struct f71805f_data *data = dev_get_drvdata(dev);
768 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
769 int nr = attr->index;
770 long val = simple_strtol(buf, NULL, 10);
771
772 mutex_lock(&data->update_lock);
773 data->temp_hyst[nr] = temp_to_reg(val);
774 f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
775 mutex_unlock(&data->update_lock);
776
777 return count;
778 }
779
780 static ssize_t show_alarms_in(struct device *dev, struct device_attribute
781 *devattr, char *buf)
782 {
783 struct f71805f_data *data = f71805f_update_device(dev);
784
785 return sprintf(buf, "%lu\n", data->alarms & 0x7ff);
786 }
787
788 static ssize_t show_alarms_fan(struct device *dev, struct device_attribute
789 *devattr, char *buf)
790 {
791 struct f71805f_data *data = f71805f_update_device(dev);
792
793 return sprintf(buf, "%lu\n", (data->alarms >> 16) & 0x07);
794 }
795
796 static ssize_t show_alarms_temp(struct device *dev, struct device_attribute
797 *devattr, char *buf)
798 {
799 struct f71805f_data *data = f71805f_update_device(dev);
800
801 return sprintf(buf, "%lu\n", (data->alarms >> 11) & 0x07);
802 }
803
804 static ssize_t show_alarm(struct device *dev, struct device_attribute
805 *devattr, char *buf)
806 {
807 struct f71805f_data *data = f71805f_update_device(dev);
808 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
809 int bitnr = attr->index;
810
811 return sprintf(buf, "%lu\n", (data->alarms >> bitnr) & 1);
812 }
813
814 static ssize_t show_name(struct device *dev, struct device_attribute
815 *devattr, char *buf)
816 {
817 struct f71805f_data *data = dev_get_drvdata(dev);
818
819 return sprintf(buf, "%s\n", data->name);
820 }
821
822 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0);
823 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR,
824 show_in0_max, set_in0_max, 0);
825 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR,
826 show_in0_min, set_in0_min, 0);
827 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
828 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
829 show_in_max, set_in_max, 1);
830 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
831 show_in_min, set_in_min, 1);
832 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
833 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
834 show_in_max, set_in_max, 2);
835 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
836 show_in_min, set_in_min, 2);
837 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
838 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
839 show_in_max, set_in_max, 3);
840 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
841 show_in_min, set_in_min, 3);
842 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
843 static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
844 show_in_max, set_in_max, 4);
845 static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
846 show_in_min, set_in_min, 4);
847 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
848 static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR,
849 show_in_max, set_in_max, 5);
850 static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR,
851 show_in_min, set_in_min, 5);
852 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
853 static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR,
854 show_in_max, set_in_max, 6);
855 static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR,
856 show_in_min, set_in_min, 6);
857 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
858 static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR,
859 show_in_max, set_in_max, 7);
860 static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR,
861 show_in_min, set_in_min, 7);
862 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
863 static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR,
864 show_in_max, set_in_max, 8);
865 static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR,
866 show_in_min, set_in_min, 8);
867 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in0, NULL, 9);
868 static SENSOR_DEVICE_ATTR(in9_max, S_IRUGO | S_IWUSR,
869 show_in0_max, set_in0_max, 9);
870 static SENSOR_DEVICE_ATTR(in9_min, S_IRUGO | S_IWUSR,
871 show_in0_min, set_in0_min, 9);
872 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in0, NULL, 10);
873 static SENSOR_DEVICE_ATTR(in10_max, S_IRUGO | S_IWUSR,
874 show_in0_max, set_in0_max, 10);
875 static SENSOR_DEVICE_ATTR(in10_min, S_IRUGO | S_IWUSR,
876 show_in0_min, set_in0_min, 10);
877
878 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
879 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
880 show_fan_min, set_fan_min, 0);
881 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR,
882 show_fan_target, set_fan_target, 0);
883 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
884 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
885 show_fan_min, set_fan_min, 1);
886 static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO | S_IWUSR,
887 show_fan_target, set_fan_target, 1);
888 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
889 static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
890 show_fan_min, set_fan_min, 2);
891 static SENSOR_DEVICE_ATTR(fan3_target, S_IRUGO | S_IWUSR,
892 show_fan_target, set_fan_target, 2);
893
894 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
895 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
896 show_temp_max, set_temp_max, 0);
897 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
898 show_temp_hyst, set_temp_hyst, 0);
899 static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
900 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
901 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
902 show_temp_max, set_temp_max, 1);
903 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
904 show_temp_hyst, set_temp_hyst, 1);
905 static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
906 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
907 static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
908 show_temp_max, set_temp_max, 2);
909 static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
910 show_temp_hyst, set_temp_hyst, 2);
911 static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
912
913 /* pwm (value) files are created read-only, write permission is
914 then added or removed dynamically as needed */
915 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, show_pwm, set_pwm, 0);
916 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
917 show_pwm_enable, set_pwm_enable, 0);
918 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR,
919 show_pwm_freq, set_pwm_freq, 0);
920 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
921 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO, show_pwm, set_pwm, 1);
922 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
923 show_pwm_enable, set_pwm_enable, 1);
924 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO | S_IWUSR,
925 show_pwm_freq, set_pwm_freq, 1);
926 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
927 static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO, show_pwm, set_pwm, 2);
928 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
929 show_pwm_enable, set_pwm_enable, 2);
930 static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR,
931 show_pwm_freq, set_pwm_freq, 2);
932 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
933
934 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
935 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
936 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
937 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
938 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
939 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
940 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
941 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
942 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
943 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
944 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
945 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11);
946 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12);
947 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
948 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
949 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
950 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
951 static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL);
952 static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL);
953 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL);
954
955 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
956
957 static struct attribute *f71805f_attributes[] = {
958 &sensor_dev_attr_in0_input.dev_attr.attr,
959 &sensor_dev_attr_in0_max.dev_attr.attr,
960 &sensor_dev_attr_in0_min.dev_attr.attr,
961 &sensor_dev_attr_in1_input.dev_attr.attr,
962 &sensor_dev_attr_in1_max.dev_attr.attr,
963 &sensor_dev_attr_in1_min.dev_attr.attr,
964 &sensor_dev_attr_in2_input.dev_attr.attr,
965 &sensor_dev_attr_in2_max.dev_attr.attr,
966 &sensor_dev_attr_in2_min.dev_attr.attr,
967 &sensor_dev_attr_in3_input.dev_attr.attr,
968 &sensor_dev_attr_in3_max.dev_attr.attr,
969 &sensor_dev_attr_in3_min.dev_attr.attr,
970 &sensor_dev_attr_in5_input.dev_attr.attr,
971 &sensor_dev_attr_in5_max.dev_attr.attr,
972 &sensor_dev_attr_in5_min.dev_attr.attr,
973 &sensor_dev_attr_in6_input.dev_attr.attr,
974 &sensor_dev_attr_in6_max.dev_attr.attr,
975 &sensor_dev_attr_in6_min.dev_attr.attr,
976 &sensor_dev_attr_in7_input.dev_attr.attr,
977 &sensor_dev_attr_in7_max.dev_attr.attr,
978 &sensor_dev_attr_in7_min.dev_attr.attr,
979
980 &sensor_dev_attr_fan1_input.dev_attr.attr,
981 &sensor_dev_attr_fan1_min.dev_attr.attr,
982 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
983 &sensor_dev_attr_fan1_target.dev_attr.attr,
984 &sensor_dev_attr_fan2_input.dev_attr.attr,
985 &sensor_dev_attr_fan2_min.dev_attr.attr,
986 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
987 &sensor_dev_attr_fan2_target.dev_attr.attr,
988 &sensor_dev_attr_fan3_input.dev_attr.attr,
989 &sensor_dev_attr_fan3_min.dev_attr.attr,
990 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
991 &sensor_dev_attr_fan3_target.dev_attr.attr,
992
993 &sensor_dev_attr_pwm1.dev_attr.attr,
994 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
995 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
996 &sensor_dev_attr_pwm2.dev_attr.attr,
997 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
998 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
999 &sensor_dev_attr_pwm3.dev_attr.attr,
1000 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1001 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1002
1003 &sensor_dev_attr_temp1_input.dev_attr.attr,
1004 &sensor_dev_attr_temp1_max.dev_attr.attr,
1005 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1006 &sensor_dev_attr_temp1_type.dev_attr.attr,
1007 &sensor_dev_attr_temp2_input.dev_attr.attr,
1008 &sensor_dev_attr_temp2_max.dev_attr.attr,
1009 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1010 &sensor_dev_attr_temp2_type.dev_attr.attr,
1011 &sensor_dev_attr_temp3_input.dev_attr.attr,
1012 &sensor_dev_attr_temp3_max.dev_attr.attr,
1013 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1014 &sensor_dev_attr_temp3_type.dev_attr.attr,
1015
1016 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1017 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1018 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1019 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1020 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1021 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1022 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1023 &dev_attr_alarms_in.attr,
1024 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1025 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1026 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1027 &dev_attr_alarms_temp.attr,
1028 &dev_attr_alarms_fan.attr,
1029
1030 &dev_attr_name.attr,
1031 NULL
1032 };
1033
1034 static const struct attribute_group f71805f_group = {
1035 .attrs = f71805f_attributes,
1036 };
1037
1038 static struct attribute *f71805f_attributes_optin[4][5] = {
1039 {
1040 &sensor_dev_attr_in4_input.dev_attr.attr,
1041 &sensor_dev_attr_in4_max.dev_attr.attr,
1042 &sensor_dev_attr_in4_min.dev_attr.attr,
1043 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1044 NULL
1045 }, {
1046 &sensor_dev_attr_in8_input.dev_attr.attr,
1047 &sensor_dev_attr_in8_max.dev_attr.attr,
1048 &sensor_dev_attr_in8_min.dev_attr.attr,
1049 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1050 NULL
1051 }, {
1052 &sensor_dev_attr_in9_input.dev_attr.attr,
1053 &sensor_dev_attr_in9_max.dev_attr.attr,
1054 &sensor_dev_attr_in9_min.dev_attr.attr,
1055 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1056 NULL
1057 }, {
1058 &sensor_dev_attr_in10_input.dev_attr.attr,
1059 &sensor_dev_attr_in10_max.dev_attr.attr,
1060 &sensor_dev_attr_in10_min.dev_attr.attr,
1061 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1062 NULL
1063 }
1064 };
1065
1066 static const struct attribute_group f71805f_group_optin[4] = {
1067 { .attrs = f71805f_attributes_optin[0] },
1068 { .attrs = f71805f_attributes_optin[1] },
1069 { .attrs = f71805f_attributes_optin[2] },
1070 { .attrs = f71805f_attributes_optin[3] },
1071 };
1072
1073 /* We don't include pwm_freq files in the arrays above, because they must be
1074 created conditionally (only if pwm_mode is 1 == PWM) */
1075 static struct attribute *f71805f_attributes_pwm_freq[] = {
1076 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1077 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1078 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1079 NULL
1080 };
1081
1082 static const struct attribute_group f71805f_group_pwm_freq = {
1083 .attrs = f71805f_attributes_pwm_freq,
1084 };
1085
1086 /* We also need an indexed access to pwmN files to toggle writability */
1087 static struct attribute *f71805f_attr_pwm[] = {
1088 &sensor_dev_attr_pwm1.dev_attr.attr,
1089 &sensor_dev_attr_pwm2.dev_attr.attr,
1090 &sensor_dev_attr_pwm3.dev_attr.attr,
1091 };
1092
1093 /*
1094 * Device registration and initialization
1095 */
1096
1097 static void __devinit f71805f_init_device(struct f71805f_data *data)
1098 {
1099 u8 reg;
1100 int i;
1101
1102 reg = f71805f_read8(data, F71805F_REG_START);
1103 if ((reg & 0x41) != 0x01) {
1104 printk(KERN_DEBUG DRVNAME ": Starting monitoring "
1105 "operations\n");
1106 f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
1107 }
1108
1109 /* Fan monitoring can be disabled. If it is, we won't be polling
1110 the register values, and won't create the related sysfs files. */
1111 for (i = 0; i < 3; i++) {
1112 data->fan_ctrl[i] = f71805f_read8(data,
1113 F71805F_REG_FAN_CTRL(i));
1114 /* Clear latch full bit, else "speed mode" fan speed control
1115 doesn't work */
1116 if (data->fan_ctrl[i] & FAN_CTRL_LATCH_FULL) {
1117 data->fan_ctrl[i] &= ~FAN_CTRL_LATCH_FULL;
1118 f71805f_write8(data, F71805F_REG_FAN_CTRL(i),
1119 data->fan_ctrl[i]);
1120 }
1121 }
1122 }
1123
1124 static int __devinit f71805f_probe(struct platform_device *pdev)
1125 {
1126 struct f71805f_sio_data *sio_data = pdev->dev.platform_data;
1127 struct f71805f_data *data;
1128 struct resource *res;
1129 int i, err;
1130
1131 static const char *names[] = {
1132 "f71805f",
1133 "f71872f",
1134 };
1135
1136 if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) {
1137 err = -ENOMEM;
1138 printk(KERN_ERR DRVNAME ": Out of memory\n");
1139 goto exit;
1140 }
1141
1142 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1143 data->addr = res->start;
1144 data->name = names[sio_data->kind];
1145 mutex_init(&data->update_lock);
1146
1147 platform_set_drvdata(pdev, data);
1148
1149 /* Some voltage inputs depend on chip model and configuration */
1150 switch (sio_data->kind) {
1151 case f71805f:
1152 data->has_in = 0x1ff;
1153 break;
1154 case f71872f:
1155 data->has_in = 0x6ef;
1156 if (sio_data->fnsel1 & 0x01)
1157 data->has_in |= (1 << 4); /* in4 */
1158 if (sio_data->fnsel1 & 0x02)
1159 data->has_in |= (1 << 8); /* in8 */
1160 break;
1161 }
1162
1163 /* Initialize the F71805F chip */
1164 f71805f_init_device(data);
1165
1166 /* Register sysfs interface files */
1167 if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group)))
1168 goto exit_free;
1169 if (data->has_in & (1 << 4)) { /* in4 */
1170 if ((err = sysfs_create_group(&pdev->dev.kobj,
1171 &f71805f_group_optin[0])))
1172 goto exit_remove_files;
1173 }
1174 if (data->has_in & (1 << 8)) { /* in8 */
1175 if ((err = sysfs_create_group(&pdev->dev.kobj,
1176 &f71805f_group_optin[1])))
1177 goto exit_remove_files;
1178 }
1179 if (data->has_in & (1 << 9)) { /* in9 (F71872F/FG only) */
1180 if ((err = sysfs_create_group(&pdev->dev.kobj,
1181 &f71805f_group_optin[2])))
1182 goto exit_remove_files;
1183 }
1184 if (data->has_in & (1 << 10)) { /* in9 (F71872F/FG only) */
1185 if ((err = sysfs_create_group(&pdev->dev.kobj,
1186 &f71805f_group_optin[3])))
1187 goto exit_remove_files;
1188 }
1189 for (i = 0; i < 3; i++) {
1190 /* If control mode is PWM, create pwm_freq file */
1191 if (!(data->fan_ctrl[i] & FAN_CTRL_DC_MODE)) {
1192 if ((err = sysfs_create_file(&pdev->dev.kobj,
1193 f71805f_attributes_pwm_freq[i])))
1194 goto exit_remove_files;
1195 }
1196 /* If PWM is in manual mode, add write permission */
1197 if (data->fan_ctrl[i] & FAN_CTRL_MODE_MANUAL) {
1198 if ((err = sysfs_chmod_file(&pdev->dev.kobj,
1199 f71805f_attr_pwm[i],
1200 S_IRUGO | S_IWUSR))) {
1201 dev_err(&pdev->dev, "chmod +w pwm%d failed\n",
1202 i + 1);
1203 goto exit_remove_files;
1204 }
1205 }
1206 }
1207
1208 data->class_dev = hwmon_device_register(&pdev->dev);
1209 if (IS_ERR(data->class_dev)) {
1210 err = PTR_ERR(data->class_dev);
1211 dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
1212 goto exit_remove_files;
1213 }
1214
1215 return 0;
1216
1217 exit_remove_files:
1218 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1219 for (i = 0; i < 4; i++)
1220 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1221 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1222 exit_free:
1223 platform_set_drvdata(pdev, NULL);
1224 kfree(data);
1225 exit:
1226 return err;
1227 }
1228
1229 static int __devexit f71805f_remove(struct platform_device *pdev)
1230 {
1231 struct f71805f_data *data = platform_get_drvdata(pdev);
1232 int i;
1233
1234 platform_set_drvdata(pdev, NULL);
1235 hwmon_device_unregister(data->class_dev);
1236 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1237 for (i = 0; i < 4; i++)
1238 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1239 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1240 kfree(data);
1241
1242 return 0;
1243 }
1244
1245 static struct platform_driver f71805f_driver = {
1246 .driver = {
1247 .owner = THIS_MODULE,
1248 .name = DRVNAME,
1249 },
1250 .probe = f71805f_probe,
1251 .remove = __devexit_p(f71805f_remove),
1252 };
1253
1254 static int __init f71805f_device_add(unsigned short address,
1255 const struct f71805f_sio_data *sio_data)
1256 {
1257 struct resource res = {
1258 .start = address,
1259 .end = address + REGION_LENGTH - 1,
1260 .flags = IORESOURCE_IO,
1261 };
1262 int err;
1263
1264 pdev = platform_device_alloc(DRVNAME, address);
1265 if (!pdev) {
1266 err = -ENOMEM;
1267 printk(KERN_ERR DRVNAME ": Device allocation failed\n");
1268 goto exit;
1269 }
1270
1271 res.name = pdev->name;
1272 err = platform_device_add_resources(pdev, &res, 1);
1273 if (err) {
1274 printk(KERN_ERR DRVNAME ": Device resource addition failed "
1275 "(%d)\n", err);
1276 goto exit_device_put;
1277 }
1278
1279 pdev->dev.platform_data = kmalloc(sizeof(struct f71805f_sio_data),
1280 GFP_KERNEL);
1281 if (!pdev->dev.platform_data) {
1282 err = -ENOMEM;
1283 printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
1284 goto exit_device_put;
1285 }
1286 memcpy(pdev->dev.platform_data, sio_data,
1287 sizeof(struct f71805f_sio_data));
1288
1289 err = platform_device_add(pdev);
1290 if (err) {
1291 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
1292 err);
1293 goto exit_device_put;
1294 }
1295
1296 return 0;
1297
1298 exit_device_put:
1299 platform_device_put(pdev);
1300 exit:
1301 return err;
1302 }
1303
1304 static int __init f71805f_find(int sioaddr, unsigned short *address,
1305 struct f71805f_sio_data *sio_data)
1306 {
1307 int err = -ENODEV;
1308 u16 devid;
1309
1310 static const char *names[] = {
1311 "F71805F/FG",
1312 "F71872F/FG",
1313 };
1314
1315 superio_enter(sioaddr);
1316
1317 devid = superio_inw(sioaddr, SIO_REG_MANID);
1318 if (devid != SIO_FINTEK_ID)
1319 goto exit;
1320
1321 devid = superio_inw(sioaddr, SIO_REG_DEVID);
1322 switch (devid) {
1323 case SIO_F71805F_ID:
1324 sio_data->kind = f71805f;
1325 break;
1326 case SIO_F71872F_ID:
1327 sio_data->kind = f71872f;
1328 sio_data->fnsel1 = superio_inb(sioaddr, SIO_REG_FNSEL1);
1329 break;
1330 default:
1331 printk(KERN_INFO DRVNAME ": Unsupported Fintek device, "
1332 "skipping\n");
1333 goto exit;
1334 }
1335
1336 superio_select(sioaddr, F71805F_LD_HWM);
1337 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
1338 printk(KERN_WARNING DRVNAME ": Device not activated, "
1339 "skipping\n");
1340 goto exit;
1341 }
1342
1343 *address = superio_inw(sioaddr, SIO_REG_ADDR);
1344 if (*address == 0) {
1345 printk(KERN_WARNING DRVNAME ": Base address not set, "
1346 "skipping\n");
1347 goto exit;
1348 }
1349 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */
1350
1351 err = 0;
1352 printk(KERN_INFO DRVNAME ": Found %s chip at %#x, revision %u\n",
1353 names[sio_data->kind], *address,
1354 superio_inb(sioaddr, SIO_REG_DEVREV));
1355
1356 exit:
1357 superio_exit(sioaddr);
1358 return err;
1359 }
1360
1361 static int __init f71805f_init(void)
1362 {
1363 int err;
1364 unsigned short address;
1365 struct f71805f_sio_data sio_data;
1366
1367 if (f71805f_find(0x2e, &address, &sio_data)
1368 && f71805f_find(0x4e, &address, &sio_data))
1369 return -ENODEV;
1370
1371 err = platform_driver_register(&f71805f_driver);
1372 if (err)
1373 goto exit;
1374
1375 /* Sets global pdev as a side effect */
1376 err = f71805f_device_add(address, &sio_data);
1377 if (err)
1378 goto exit_driver;
1379
1380 return 0;
1381
1382 exit_driver:
1383 platform_driver_unregister(&f71805f_driver);
1384 exit:
1385 return err;
1386 }
1387
1388 static void __exit f71805f_exit(void)
1389 {
1390 platform_device_unregister(pdev);
1391 platform_driver_unregister(&f71805f_driver);
1392 }
1393
1394 MODULE_AUTHOR("Jean Delvare <khali@linux-fr>");
1395 MODULE_LICENSE("GPL");
1396 MODULE_DESCRIPTION("F71805F/F71872F hardware monitoring driver");
1397
1398 module_init(f71805f_init);
1399 module_exit(f71805f_exit);
Linux kernel - Deliverables
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