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Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
[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 mutex lock;
150 struct class_device *class_dev;
151
152 struct mutex update_lock;
153 char valid; /* !=0 if following fields are valid */
154 unsigned long last_updated; /* In jiffies */
155 unsigned long last_limits; /* In jiffies */
156
157 /* Register values */
158 u8 in[11];
159 u8 in_high[11];
160 u8 in_low[11];
161 u16 has_in;
162 u16 fan[3];
163 u16 fan_low[3];
164 u16 fan_target[3];
165 u8 fan_ctrl[3];
166 u8 pwm[3];
167 u8 pwm_freq[3];
168 u8 temp[3];
169 u8 temp_high[3];
170 u8 temp_hyst[3];
171 u8 temp_mode;
172 unsigned long alarms;
173 };
174
175 struct f71805f_sio_data {
176 enum kinds kind;
177 u8 fnsel1;
178 };
179
180 static inline long in_from_reg(u8 reg)
181 {
182 return (reg * 8);
183 }
184
185 /* The 2 least significant bits are not used */
186 static inline u8 in_to_reg(long val)
187 {
188 if (val <= 0)
189 return 0;
190 if (val >= 2016)
191 return 0xfc;
192 return (((val + 16) / 32) << 2);
193 }
194
195 /* in0 is downscaled by a factor 2 internally */
196 static inline long in0_from_reg(u8 reg)
197 {
198 return (reg * 16);
199 }
200
201 static inline u8 in0_to_reg(long val)
202 {
203 if (val <= 0)
204 return 0;
205 if (val >= 4032)
206 return 0xfc;
207 return (((val + 32) / 64) << 2);
208 }
209
210 /* The 4 most significant bits are not used */
211 static inline long fan_from_reg(u16 reg)
212 {
213 reg &= 0xfff;
214 if (!reg || reg == 0xfff)
215 return 0;
216 return (1500000 / reg);
217 }
218
219 static inline u16 fan_to_reg(long rpm)
220 {
221 /* If the low limit is set below what the chip can measure,
222 store the largest possible 12-bit value in the registers,
223 so that no alarm will ever trigger. */
224 if (rpm < 367)
225 return 0xfff;
226 return (1500000 / rpm);
227 }
228
229 static inline unsigned long pwm_freq_from_reg(u8 reg)
230 {
231 unsigned long clock = (reg & 0x80) ? 48000000UL : 1000000UL;
232
233 reg &= 0x7f;
234 if (reg == 0)
235 reg++;
236 return clock / (reg << 8);
237 }
238
239 static inline u8 pwm_freq_to_reg(unsigned long val)
240 {
241 if (val >= 187500) /* The highest we can do */
242 return 0x80;
243 if (val >= 1475) /* Use 48 MHz clock */
244 return 0x80 | (48000000UL / (val << 8));
245 if (val < 31) /* The lowest we can do */
246 return 0x7f;
247 else /* Use 1 MHz clock */
248 return 1000000UL / (val << 8);
249 }
250
251 static inline int pwm_mode_from_reg(u8 reg)
252 {
253 return !(reg & FAN_CTRL_DC_MODE);
254 }
255
256 static inline long temp_from_reg(u8 reg)
257 {
258 return (reg * 1000);
259 }
260
261 static inline u8 temp_to_reg(long val)
262 {
263 if (val < 0)
264 val = 0;
265 else if (val > 1000 * 0xff)
266 val = 0xff;
267 return ((val + 500) / 1000);
268 }
269
270 /*
271 * Device I/O access
272 */
273
274 static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
275 {
276 u8 val;
277
278 mutex_lock(&data->lock);
279 outb(reg, data->addr + ADDR_REG_OFFSET);
280 val = inb(data->addr + DATA_REG_OFFSET);
281 mutex_unlock(&data->lock);
282
283 return val;
284 }
285
286 static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
287 {
288 mutex_lock(&data->lock);
289 outb(reg, data->addr + ADDR_REG_OFFSET);
290 outb(val, data->addr + DATA_REG_OFFSET);
291 mutex_unlock(&data->lock);
292 }
293
294 /* It is important to read the MSB first, because doing so latches the
295 value of the LSB, so we are sure both bytes belong to the same value. */
296 static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
297 {
298 u16 val;
299
300 mutex_lock(&data->lock);
301 outb(reg, data->addr + ADDR_REG_OFFSET);
302 val = inb(data->addr + DATA_REG_OFFSET) << 8;
303 outb(++reg, data->addr + ADDR_REG_OFFSET);
304 val |= inb(data->addr + DATA_REG_OFFSET);
305 mutex_unlock(&data->lock);
306
307 return val;
308 }
309
310 static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
311 {
312 mutex_lock(&data->lock);
313 outb(reg, data->addr + ADDR_REG_OFFSET);
314 outb(val >> 8, data->addr + DATA_REG_OFFSET);
315 outb(++reg, data->addr + ADDR_REG_OFFSET);
316 outb(val & 0xff, data->addr + DATA_REG_OFFSET);
317 mutex_unlock(&data->lock);
318 }
319
320 static struct f71805f_data *f71805f_update_device(struct device *dev)
321 {
322 struct f71805f_data *data = dev_get_drvdata(dev);
323 int nr;
324
325 mutex_lock(&data->update_lock);
326
327 /* Limit registers cache is refreshed after 60 seconds */
328 if (time_after(jiffies, data->last_updated + 60 * HZ)
329 || !data->valid) {
330 for (nr = 0; nr < 11; nr++) {
331 if (!(data->has_in & (1 << nr)))
332 continue;
333 data->in_high[nr] = f71805f_read8(data,
334 F71805F_REG_IN_HIGH(nr));
335 data->in_low[nr] = f71805f_read8(data,
336 F71805F_REG_IN_LOW(nr));
337 }
338 for (nr = 0; nr < 3; nr++) {
339 data->fan_low[nr] = f71805f_read16(data,
340 F71805F_REG_FAN_LOW(nr));
341 data->fan_target[nr] = f71805f_read16(data,
342 F71805F_REG_FAN_TARGET(nr));
343 data->pwm_freq[nr] = f71805f_read8(data,
344 F71805F_REG_PWM_FREQ(nr));
345 }
346 for (nr = 0; nr < 3; nr++) {
347 data->temp_high[nr] = f71805f_read8(data,
348 F71805F_REG_TEMP_HIGH(nr));
349 data->temp_hyst[nr] = f71805f_read8(data,
350 F71805F_REG_TEMP_HYST(nr));
351 }
352 data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
353
354 data->last_limits = jiffies;
355 }
356
357 /* Measurement registers cache is refreshed after 1 second */
358 if (time_after(jiffies, data->last_updated + HZ)
359 || !data->valid) {
360 for (nr = 0; nr < 11; nr++) {
361 if (!(data->has_in & (1 << nr)))
362 continue;
363 data->in[nr] = f71805f_read8(data,
364 F71805F_REG_IN(nr));
365 }
366 for (nr = 0; nr < 3; nr++) {
367 data->fan[nr] = f71805f_read16(data,
368 F71805F_REG_FAN(nr));
369 data->fan_ctrl[nr] = f71805f_read8(data,
370 F71805F_REG_FAN_CTRL(nr));
371 data->pwm[nr] = f71805f_read8(data,
372 F71805F_REG_PWM_DUTY(nr));
373 }
374 for (nr = 0; nr < 3; nr++) {
375 data->temp[nr] = f71805f_read8(data,
376 F71805F_REG_TEMP(nr));
377 }
378 data->alarms = f71805f_read8(data, F71805F_REG_STATUS(0))
379 + (f71805f_read8(data, F71805F_REG_STATUS(1)) << 8)
380 + (f71805f_read8(data, F71805F_REG_STATUS(2)) << 16);
381
382 data->last_updated = jiffies;
383 data->valid = 1;
384 }
385
386 mutex_unlock(&data->update_lock);
387
388 return data;
389 }
390
391 /*
392 * Sysfs interface
393 */
394
395 static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
396 char *buf)
397 {
398 struct f71805f_data *data = f71805f_update_device(dev);
399 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
400 int nr = attr->index;
401
402 return sprintf(buf, "%ld\n", in0_from_reg(data->in[nr]));
403 }
404
405 static ssize_t show_in0_max(struct device *dev, struct device_attribute
406 *devattr, char *buf)
407 {
408 struct f71805f_data *data = f71805f_update_device(dev);
409 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
410 int nr = attr->index;
411
412 return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[nr]));
413 }
414
415 static ssize_t show_in0_min(struct device *dev, struct device_attribute
416 *devattr, char *buf)
417 {
418 struct f71805f_data *data = f71805f_update_device(dev);
419 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
420 int nr = attr->index;
421
422 return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[nr]));
423 }
424
425 static ssize_t set_in0_max(struct device *dev, struct device_attribute
426 *devattr, const char *buf, size_t count)
427 {
428 struct f71805f_data *data = dev_get_drvdata(dev);
429 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
430 int nr = attr->index;
431 long val = simple_strtol(buf, NULL, 10);
432
433 mutex_lock(&data->update_lock);
434 data->in_high[nr] = in0_to_reg(val);
435 f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
436 mutex_unlock(&data->update_lock);
437
438 return count;
439 }
440
441 static ssize_t set_in0_min(struct device *dev, struct device_attribute
442 *devattr, const char *buf, size_t count)
443 {
444 struct f71805f_data *data = dev_get_drvdata(dev);
445 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
446 int nr = attr->index;
447 long val = simple_strtol(buf, NULL, 10);
448
449 mutex_lock(&data->update_lock);
450 data->in_low[nr] = in0_to_reg(val);
451 f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
452 mutex_unlock(&data->update_lock);
453
454 return count;
455 }
456
457 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
458 char *buf)
459 {
460 struct f71805f_data *data = f71805f_update_device(dev);
461 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
462 int nr = attr->index;
463
464 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
465 }
466
467 static ssize_t show_in_max(struct device *dev, struct device_attribute
468 *devattr, char *buf)
469 {
470 struct f71805f_data *data = f71805f_update_device(dev);
471 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
472 int nr = attr->index;
473
474 return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
475 }
476
477 static ssize_t show_in_min(struct device *dev, struct device_attribute
478 *devattr, char *buf)
479 {
480 struct f71805f_data *data = f71805f_update_device(dev);
481 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
482 int nr = attr->index;
483
484 return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
485 }
486
487 static ssize_t set_in_max(struct device *dev, struct device_attribute
488 *devattr, const char *buf, size_t count)
489 {
490 struct f71805f_data *data = dev_get_drvdata(dev);
491 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
492 int nr = attr->index;
493 long val = simple_strtol(buf, NULL, 10);
494
495 mutex_lock(&data->update_lock);
496 data->in_high[nr] = in_to_reg(val);
497 f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
498 mutex_unlock(&data->update_lock);
499
500 return count;
501 }
502
503 static ssize_t set_in_min(struct device *dev, struct device_attribute
504 *devattr, const char *buf, size_t count)
505 {
506 struct f71805f_data *data = dev_get_drvdata(dev);
507 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
508 int nr = attr->index;
509 long val = simple_strtol(buf, NULL, 10);
510
511 mutex_lock(&data->update_lock);
512 data->in_low[nr] = in_to_reg(val);
513 f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
514 mutex_unlock(&data->update_lock);
515
516 return count;
517 }
518
519 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
520 char *buf)
521 {
522 struct f71805f_data *data = f71805f_update_device(dev);
523 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
524 int nr = attr->index;
525
526 return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
527 }
528
529 static ssize_t show_fan_min(struct device *dev, struct device_attribute
530 *devattr, char *buf)
531 {
532 struct f71805f_data *data = f71805f_update_device(dev);
533 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
534 int nr = attr->index;
535
536 return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
537 }
538
539 static ssize_t show_fan_target(struct device *dev, struct device_attribute
540 *devattr, char *buf)
541 {
542 struct f71805f_data *data = f71805f_update_device(dev);
543 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
544 int nr = attr->index;
545
546 return sprintf(buf, "%ld\n", fan_from_reg(data->fan_target[nr]));
547 }
548
549 static ssize_t set_fan_min(struct device *dev, struct device_attribute
550 *devattr, const char *buf, size_t count)
551 {
552 struct f71805f_data *data = dev_get_drvdata(dev);
553 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
554 int nr = attr->index;
555 long val = simple_strtol(buf, NULL, 10);
556
557 mutex_lock(&data->update_lock);
558 data->fan_low[nr] = fan_to_reg(val);
559 f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
560 mutex_unlock(&data->update_lock);
561
562 return count;
563 }
564
565 static ssize_t set_fan_target(struct device *dev, struct device_attribute
566 *devattr, const char *buf, size_t count)
567 {
568 struct f71805f_data *data = dev_get_drvdata(dev);
569 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
570 int nr = attr->index;
571 long val = simple_strtol(buf, NULL, 10);
572
573 mutex_lock(&data->update_lock);
574 data->fan_target[nr] = fan_to_reg(val);
575 f71805f_write16(data, F71805F_REG_FAN_TARGET(nr),
576 data->fan_target[nr]);
577 mutex_unlock(&data->update_lock);
578
579 return count;
580 }
581
582 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
583 char *buf)
584 {
585 struct f71805f_data *data = f71805f_update_device(dev);
586 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
587 int nr = attr->index;
588
589 return sprintf(buf, "%d\n", (int)data->pwm[nr]);
590 }
591
592 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
593 *devattr, char *buf)
594 {
595 struct f71805f_data *data = f71805f_update_device(dev);
596 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
597 int nr = attr->index;
598 int mode;
599
600 switch (data->fan_ctrl[nr] & FAN_CTRL_MODE_MASK) {
601 case FAN_CTRL_MODE_SPEED:
602 mode = 3;
603 break;
604 case FAN_CTRL_MODE_TEMPERATURE:
605 mode = 2;
606 break;
607 default: /* MANUAL */
608 mode = 1;
609 }
610
611 return sprintf(buf, "%d\n", mode);
612 }
613
614 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute
615 *devattr, char *buf)
616 {
617 struct f71805f_data *data = f71805f_update_device(dev);
618 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
619 int nr = attr->index;
620
621 return sprintf(buf, "%lu\n", pwm_freq_from_reg(data->pwm_freq[nr]));
622 }
623
624 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
625 *devattr, char *buf)
626 {
627 struct f71805f_data *data = f71805f_update_device(dev);
628 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
629 int nr = attr->index;
630
631 return sprintf(buf, "%d\n", pwm_mode_from_reg(data->fan_ctrl[nr]));
632 }
633
634 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
635 const char *buf, size_t count)
636 {
637 struct f71805f_data *data = dev_get_drvdata(dev);
638 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
639 int nr = attr->index;
640 unsigned long val = simple_strtoul(buf, NULL, 10);
641
642 if (val > 255)
643 return -EINVAL;
644
645 mutex_lock(&data->update_lock);
646 data->pwm[nr] = val;
647 f71805f_write8(data, F71805F_REG_PWM_DUTY(nr), data->pwm[nr]);
648 mutex_unlock(&data->update_lock);
649
650 return count;
651 }
652
653 static struct attribute *f71805f_attr_pwm[];
654
655 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
656 *devattr, const char *buf, size_t count)
657 {
658 struct f71805f_data *data = dev_get_drvdata(dev);
659 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
660 int nr = attr->index;
661 unsigned long val = simple_strtoul(buf, NULL, 10);
662 u8 reg;
663
664 if (val < 1 || val > 3)
665 return -EINVAL;
666
667 if (val > 1) { /* Automatic mode, user can't set PWM value */
668 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
669 S_IRUGO))
670 dev_dbg(dev, "chmod -w pwm%d failed\n", nr + 1);
671 }
672
673 mutex_lock(&data->update_lock);
674 reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(nr))
675 & ~FAN_CTRL_MODE_MASK;
676 switch (val) {
677 case 1:
678 reg |= FAN_CTRL_MODE_MANUAL;
679 break;
680 case 2:
681 reg |= FAN_CTRL_MODE_TEMPERATURE;
682 break;
683 case 3:
684 reg |= FAN_CTRL_MODE_SPEED;
685 break;
686 }
687 data->fan_ctrl[nr] = reg;
688 f71805f_write8(data, F71805F_REG_FAN_CTRL(nr), reg);
689 mutex_unlock(&data->update_lock);
690
691 if (val == 1) { /* Manual mode, user can set PWM value */
692 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
693 S_IRUGO | S_IWUSR))
694 dev_dbg(dev, "chmod +w pwm%d failed\n", nr + 1);
695 }
696
697 return count;
698 }
699
700 static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
701 *devattr, const char *buf, size_t count)
702 {
703 struct f71805f_data *data = dev_get_drvdata(dev);
704 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
705 int nr = attr->index;
706 unsigned long val = simple_strtoul(buf, NULL, 10);
707
708 mutex_lock(&data->update_lock);
709 data->pwm_freq[nr] = pwm_freq_to_reg(val);
710 f71805f_write8(data, F71805F_REG_PWM_FREQ(nr), data->pwm_freq[nr]);
711 mutex_unlock(&data->update_lock);
712
713 return count;
714 }
715
716 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
717 char *buf)
718 {
719 struct f71805f_data *data = f71805f_update_device(dev);
720 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
721 int nr = attr->index;
722
723 return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
724 }
725
726 static ssize_t show_temp_max(struct device *dev, struct device_attribute
727 *devattr, char *buf)
728 {
729 struct f71805f_data *data = f71805f_update_device(dev);
730 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
731 int nr = attr->index;
732
733 return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
734 }
735
736 static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
737 *devattr, char *buf)
738 {
739 struct f71805f_data *data = f71805f_update_device(dev);
740 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
741 int nr = attr->index;
742
743 return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
744 }
745
746 static ssize_t show_temp_type(struct device *dev, struct device_attribute
747 *devattr, char *buf)
748 {
749 struct f71805f_data *data = f71805f_update_device(dev);
750 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
751 int nr = attr->index;
752
753 /* 3 is diode, 4 is thermistor */
754 return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
755 }
756
757 static ssize_t set_temp_max(struct device *dev, struct device_attribute
758 *devattr, const char *buf, size_t count)
759 {
760 struct f71805f_data *data = dev_get_drvdata(dev);
761 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
762 int nr = attr->index;
763 long val = simple_strtol(buf, NULL, 10);
764
765 mutex_lock(&data->update_lock);
766 data->temp_high[nr] = temp_to_reg(val);
767 f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
768 mutex_unlock(&data->update_lock);
769
770 return count;
771 }
772
773 static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
774 *devattr, const char *buf, size_t count)
775 {
776 struct f71805f_data *data = dev_get_drvdata(dev);
777 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
778 int nr = attr->index;
779 long val = simple_strtol(buf, NULL, 10);
780
781 mutex_lock(&data->update_lock);
782 data->temp_hyst[nr] = temp_to_reg(val);
783 f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
784 mutex_unlock(&data->update_lock);
785
786 return count;
787 }
788
789 static ssize_t show_alarms_in(struct device *dev, struct device_attribute
790 *devattr, char *buf)
791 {
792 struct f71805f_data *data = f71805f_update_device(dev);
793
794 return sprintf(buf, "%lu\n", data->alarms & 0x7ff);
795 }
796
797 static ssize_t show_alarms_fan(struct device *dev, struct device_attribute
798 *devattr, char *buf)
799 {
800 struct f71805f_data *data = f71805f_update_device(dev);
801
802 return sprintf(buf, "%lu\n", (data->alarms >> 16) & 0x07);
803 }
804
805 static ssize_t show_alarms_temp(struct device *dev, struct device_attribute
806 *devattr, char *buf)
807 {
808 struct f71805f_data *data = f71805f_update_device(dev);
809
810 return sprintf(buf, "%lu\n", (data->alarms >> 11) & 0x07);
811 }
812
813 static ssize_t show_alarm(struct device *dev, struct device_attribute
814 *devattr, char *buf)
815 {
816 struct f71805f_data *data = f71805f_update_device(dev);
817 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
818 int bitnr = attr->index;
819
820 return sprintf(buf, "%lu\n", (data->alarms >> bitnr) & 1);
821 }
822
823 static ssize_t show_name(struct device *dev, struct device_attribute
824 *devattr, char *buf)
825 {
826 struct f71805f_data *data = dev_get_drvdata(dev);
827
828 return sprintf(buf, "%s\n", data->name);
829 }
830
831 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0);
832 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO| S_IWUSR,
833 show_in0_max, set_in0_max, 0);
834 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO| S_IWUSR,
835 show_in0_min, set_in0_min, 0);
836 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
837 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
838 show_in_max, set_in_max, 1);
839 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
840 show_in_min, set_in_min, 1);
841 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
842 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
843 show_in_max, set_in_max, 2);
844 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
845 show_in_min, set_in_min, 2);
846 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
847 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
848 show_in_max, set_in_max, 3);
849 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
850 show_in_min, set_in_min, 3);
851 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
852 static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
853 show_in_max, set_in_max, 4);
854 static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
855 show_in_min, set_in_min, 4);
856 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
857 static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR,
858 show_in_max, set_in_max, 5);
859 static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR,
860 show_in_min, set_in_min, 5);
861 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
862 static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR,
863 show_in_max, set_in_max, 6);
864 static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR,
865 show_in_min, set_in_min, 6);
866 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
867 static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR,
868 show_in_max, set_in_max, 7);
869 static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR,
870 show_in_min, set_in_min, 7);
871 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
872 static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR,
873 show_in_max, set_in_max, 8);
874 static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR,
875 show_in_min, set_in_min, 8);
876 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in0, NULL, 9);
877 static SENSOR_DEVICE_ATTR(in9_max, S_IRUGO | S_IWUSR,
878 show_in0_max, set_in0_max, 9);
879 static SENSOR_DEVICE_ATTR(in9_min, S_IRUGO | S_IWUSR,
880 show_in0_min, set_in0_min, 9);
881 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in0, NULL, 10);
882 static SENSOR_DEVICE_ATTR(in10_max, S_IRUGO | S_IWUSR,
883 show_in0_max, set_in0_max, 10);
884 static SENSOR_DEVICE_ATTR(in10_min, S_IRUGO | S_IWUSR,
885 show_in0_min, set_in0_min, 10);
886
887 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
888 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
889 show_fan_min, set_fan_min, 0);
890 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR,
891 show_fan_target, set_fan_target, 0);
892 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
893 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
894 show_fan_min, set_fan_min, 1);
895 static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO | S_IWUSR,
896 show_fan_target, set_fan_target, 1);
897 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
898 static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
899 show_fan_min, set_fan_min, 2);
900 static SENSOR_DEVICE_ATTR(fan3_target, S_IRUGO | S_IWUSR,
901 show_fan_target, set_fan_target, 2);
902
903 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
904 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
905 show_temp_max, set_temp_max, 0);
906 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
907 show_temp_hyst, set_temp_hyst, 0);
908 static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
909 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
910 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
911 show_temp_max, set_temp_max, 1);
912 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
913 show_temp_hyst, set_temp_hyst, 1);
914 static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
915 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
916 static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
917 show_temp_max, set_temp_max, 2);
918 static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
919 show_temp_hyst, set_temp_hyst, 2);
920 static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
921
922 /* pwm (value) files are created read-only, write permission is
923 then added or removed dynamically as needed */
924 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, show_pwm, set_pwm, 0);
925 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
926 show_pwm_enable, set_pwm_enable, 0);
927 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR,
928 show_pwm_freq, set_pwm_freq, 0);
929 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
930 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO, show_pwm, set_pwm, 1);
931 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
932 show_pwm_enable, set_pwm_enable, 1);
933 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO | S_IWUSR,
934 show_pwm_freq, set_pwm_freq, 1);
935 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
936 static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO, show_pwm, set_pwm, 2);
937 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
938 show_pwm_enable, set_pwm_enable, 2);
939 static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR,
940 show_pwm_freq, set_pwm_freq, 2);
941 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
942
943 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
944 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
945 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
946 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
947 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
948 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
949 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
950 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
951 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
952 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
953 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
954 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11);
955 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12);
956 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
957 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
958 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
959 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
960 static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL);
961 static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL);
962 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL);
963
964 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
965
966 static struct attribute *f71805f_attributes[] = {
967 &sensor_dev_attr_in0_input.dev_attr.attr,
968 &sensor_dev_attr_in0_max.dev_attr.attr,
969 &sensor_dev_attr_in0_min.dev_attr.attr,
970 &sensor_dev_attr_in1_input.dev_attr.attr,
971 &sensor_dev_attr_in1_max.dev_attr.attr,
972 &sensor_dev_attr_in1_min.dev_attr.attr,
973 &sensor_dev_attr_in2_input.dev_attr.attr,
974 &sensor_dev_attr_in2_max.dev_attr.attr,
975 &sensor_dev_attr_in2_min.dev_attr.attr,
976 &sensor_dev_attr_in3_input.dev_attr.attr,
977 &sensor_dev_attr_in3_max.dev_attr.attr,
978 &sensor_dev_attr_in3_min.dev_attr.attr,
979 &sensor_dev_attr_in5_input.dev_attr.attr,
980 &sensor_dev_attr_in5_max.dev_attr.attr,
981 &sensor_dev_attr_in5_min.dev_attr.attr,
982 &sensor_dev_attr_in6_input.dev_attr.attr,
983 &sensor_dev_attr_in6_max.dev_attr.attr,
984 &sensor_dev_attr_in6_min.dev_attr.attr,
985 &sensor_dev_attr_in7_input.dev_attr.attr,
986 &sensor_dev_attr_in7_max.dev_attr.attr,
987 &sensor_dev_attr_in7_min.dev_attr.attr,
988
989 &sensor_dev_attr_fan1_input.dev_attr.attr,
990 &sensor_dev_attr_fan1_min.dev_attr.attr,
991 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
992 &sensor_dev_attr_fan1_target.dev_attr.attr,
993 &sensor_dev_attr_fan2_input.dev_attr.attr,
994 &sensor_dev_attr_fan2_min.dev_attr.attr,
995 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
996 &sensor_dev_attr_fan2_target.dev_attr.attr,
997 &sensor_dev_attr_fan3_input.dev_attr.attr,
998 &sensor_dev_attr_fan3_min.dev_attr.attr,
999 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1000 &sensor_dev_attr_fan3_target.dev_attr.attr,
1001
1002 &sensor_dev_attr_pwm1.dev_attr.attr,
1003 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1004 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1005 &sensor_dev_attr_pwm2.dev_attr.attr,
1006 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1007 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1008 &sensor_dev_attr_pwm3.dev_attr.attr,
1009 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1010 &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1011
1012 &sensor_dev_attr_temp1_input.dev_attr.attr,
1013 &sensor_dev_attr_temp1_max.dev_attr.attr,
1014 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1015 &sensor_dev_attr_temp1_type.dev_attr.attr,
1016 &sensor_dev_attr_temp2_input.dev_attr.attr,
1017 &sensor_dev_attr_temp2_max.dev_attr.attr,
1018 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1019 &sensor_dev_attr_temp2_type.dev_attr.attr,
1020 &sensor_dev_attr_temp3_input.dev_attr.attr,
1021 &sensor_dev_attr_temp3_max.dev_attr.attr,
1022 &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1023 &sensor_dev_attr_temp3_type.dev_attr.attr,
1024
1025 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1026 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1027 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1028 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1029 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1030 &sensor_dev_attr_in6_alarm.dev_attr.attr,
1031 &sensor_dev_attr_in7_alarm.dev_attr.attr,
1032 &dev_attr_alarms_in.attr,
1033 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1034 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1035 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1036 &dev_attr_alarms_temp.attr,
1037 &dev_attr_alarms_fan.attr,
1038
1039 &dev_attr_name.attr,
1040 NULL
1041 };
1042
1043 static const struct attribute_group f71805f_group = {
1044 .attrs = f71805f_attributes,
1045 };
1046
1047 static struct attribute *f71805f_attributes_optin[4][5] = {
1048 {
1049 &sensor_dev_attr_in4_input.dev_attr.attr,
1050 &sensor_dev_attr_in4_max.dev_attr.attr,
1051 &sensor_dev_attr_in4_min.dev_attr.attr,
1052 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1053 NULL
1054 }, {
1055 &sensor_dev_attr_in8_input.dev_attr.attr,
1056 &sensor_dev_attr_in8_max.dev_attr.attr,
1057 &sensor_dev_attr_in8_min.dev_attr.attr,
1058 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1059 NULL
1060 }, {
1061 &sensor_dev_attr_in9_input.dev_attr.attr,
1062 &sensor_dev_attr_in9_max.dev_attr.attr,
1063 &sensor_dev_attr_in9_min.dev_attr.attr,
1064 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1065 NULL
1066 }, {
1067 &sensor_dev_attr_in10_input.dev_attr.attr,
1068 &sensor_dev_attr_in10_max.dev_attr.attr,
1069 &sensor_dev_attr_in10_min.dev_attr.attr,
1070 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1071 NULL
1072 }
1073 };
1074
1075 static const struct attribute_group f71805f_group_optin[4] = {
1076 { .attrs = f71805f_attributes_optin[0] },
1077 { .attrs = f71805f_attributes_optin[1] },
1078 { .attrs = f71805f_attributes_optin[2] },
1079 { .attrs = f71805f_attributes_optin[3] },
1080 };
1081
1082 /* We don't include pwm_freq files in the arrays above, because they must be
1083 created conditionally (only if pwm_mode is 1 == PWM) */
1084 static struct attribute *f71805f_attributes_pwm_freq[] = {
1085 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1086 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1087 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1088 NULL
1089 };
1090
1091 static const struct attribute_group f71805f_group_pwm_freq = {
1092 .attrs = f71805f_attributes_pwm_freq,
1093 };
1094
1095 /* We also need an indexed access to pwmN files to toggle writability */
1096 static struct attribute *f71805f_attr_pwm[] = {
1097 &sensor_dev_attr_pwm1.dev_attr.attr,
1098 &sensor_dev_attr_pwm2.dev_attr.attr,
1099 &sensor_dev_attr_pwm3.dev_attr.attr,
1100 };
1101
1102 /*
1103 * Device registration and initialization
1104 */
1105
1106 static void __devinit f71805f_init_device(struct f71805f_data *data)
1107 {
1108 u8 reg;
1109 int i;
1110
1111 reg = f71805f_read8(data, F71805F_REG_START);
1112 if ((reg & 0x41) != 0x01) {
1113 printk(KERN_DEBUG DRVNAME ": Starting monitoring "
1114 "operations\n");
1115 f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
1116 }
1117
1118 /* Fan monitoring can be disabled. If it is, we won't be polling
1119 the register values, and won't create the related sysfs files. */
1120 for (i = 0; i < 3; i++) {
1121 data->fan_ctrl[i] = f71805f_read8(data,
1122 F71805F_REG_FAN_CTRL(i));
1123 /* Clear latch full bit, else "speed mode" fan speed control
1124 doesn't work */
1125 if (data->fan_ctrl[i] & FAN_CTRL_LATCH_FULL) {
1126 data->fan_ctrl[i] &= ~FAN_CTRL_LATCH_FULL;
1127 f71805f_write8(data, F71805F_REG_FAN_CTRL(i),
1128 data->fan_ctrl[i]);
1129 }
1130 }
1131 }
1132
1133 static int __devinit f71805f_probe(struct platform_device *pdev)
1134 {
1135 struct f71805f_sio_data *sio_data = pdev->dev.platform_data;
1136 struct f71805f_data *data;
1137 struct resource *res;
1138 int i, err;
1139
1140 static const char *names[] = {
1141 "f71805f",
1142 "f71872f",
1143 };
1144
1145 if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) {
1146 err = -ENOMEM;
1147 printk(KERN_ERR DRVNAME ": Out of memory\n");
1148 goto exit;
1149 }
1150
1151 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1152 data->addr = res->start;
1153 mutex_init(&data->lock);
1154 data->name = names[sio_data->kind];
1155 mutex_init(&data->update_lock);
1156
1157 platform_set_drvdata(pdev, data);
1158
1159 /* Some voltage inputs depend on chip model and configuration */
1160 switch (sio_data->kind) {
1161 case f71805f:
1162 data->has_in = 0x1ff;
1163 break;
1164 case f71872f:
1165 data->has_in = 0x6ef;
1166 if (sio_data->fnsel1 & 0x01)
1167 data->has_in |= (1 << 4); /* in4 */
1168 if (sio_data->fnsel1 & 0x02)
1169 data->has_in |= (1 << 8); /* in8 */
1170 break;
1171 }
1172
1173 /* Initialize the F71805F chip */
1174 f71805f_init_device(data);
1175
1176 /* Register sysfs interface files */
1177 if ((err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group)))
1178 goto exit_free;
1179 if (data->has_in & (1 << 4)) { /* in4 */
1180 if ((err = sysfs_create_group(&pdev->dev.kobj,
1181 &f71805f_group_optin[0])))
1182 goto exit_remove_files;
1183 }
1184 if (data->has_in & (1 << 8)) { /* in8 */
1185 if ((err = sysfs_create_group(&pdev->dev.kobj,
1186 &f71805f_group_optin[1])))
1187 goto exit_remove_files;
1188 }
1189 if (data->has_in & (1 << 9)) { /* in9 (F71872F/FG only) */
1190 if ((err = sysfs_create_group(&pdev->dev.kobj,
1191 &f71805f_group_optin[2])))
1192 goto exit_remove_files;
1193 }
1194 if (data->has_in & (1 << 10)) { /* in9 (F71872F/FG only) */
1195 if ((err = sysfs_create_group(&pdev->dev.kobj,
1196 &f71805f_group_optin[3])))
1197 goto exit_remove_files;
1198 }
1199 for (i = 0; i < 3; i++) {
1200 /* If control mode is PWM, create pwm_freq file */
1201 if (!(data->fan_ctrl[i] & FAN_CTRL_DC_MODE)) {
1202 if ((err = sysfs_create_file(&pdev->dev.kobj,
1203 f71805f_attributes_pwm_freq[i])))
1204 goto exit_remove_files;
1205 }
1206 /* If PWM is in manual mode, add write permission */
1207 if (data->fan_ctrl[i] & FAN_CTRL_MODE_MANUAL) {
1208 if ((err = sysfs_chmod_file(&pdev->dev.kobj,
1209 f71805f_attr_pwm[i],
1210 S_IRUGO | S_IWUSR))) {
1211 dev_err(&pdev->dev, "chmod +w pwm%d failed\n",
1212 i + 1);
1213 goto exit_remove_files;
1214 }
1215 }
1216 }
1217
1218 data->class_dev = hwmon_device_register(&pdev->dev);
1219 if (IS_ERR(data->class_dev)) {
1220 err = PTR_ERR(data->class_dev);
1221 dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
1222 goto exit_remove_files;
1223 }
1224
1225 return 0;
1226
1227 exit_remove_files:
1228 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1229 for (i = 0; i < 4; i++)
1230 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1231 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1232 exit_free:
1233 platform_set_drvdata(pdev, NULL);
1234 kfree(data);
1235 exit:
1236 return err;
1237 }
1238
1239 static int __devexit f71805f_remove(struct platform_device *pdev)
1240 {
1241 struct f71805f_data *data = platform_get_drvdata(pdev);
1242 int i;
1243
1244 platform_set_drvdata(pdev, NULL);
1245 hwmon_device_unregister(data->class_dev);
1246 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1247 for (i = 0; i < 4; i++)
1248 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1249 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1250 kfree(data);
1251
1252 return 0;
1253 }
1254
1255 static struct platform_driver f71805f_driver = {
1256 .driver = {
1257 .owner = THIS_MODULE,
1258 .name = DRVNAME,
1259 },
1260 .probe = f71805f_probe,
1261 .remove = __devexit_p(f71805f_remove),
1262 };
1263
1264 static int __init f71805f_device_add(unsigned short address,
1265 const struct f71805f_sio_data *sio_data)
1266 {
1267 struct resource res = {
1268 .start = address,
1269 .end = address + REGION_LENGTH - 1,
1270 .flags = IORESOURCE_IO,
1271 };
1272 int err;
1273
1274 pdev = platform_device_alloc(DRVNAME, address);
1275 if (!pdev) {
1276 err = -ENOMEM;
1277 printk(KERN_ERR DRVNAME ": Device allocation failed\n");
1278 goto exit;
1279 }
1280
1281 res.name = pdev->name;
1282 err = platform_device_add_resources(pdev, &res, 1);
1283 if (err) {
1284 printk(KERN_ERR DRVNAME ": Device resource addition failed "
1285 "(%d)\n", err);
1286 goto exit_device_put;
1287 }
1288
1289 pdev->dev.platform_data = kmalloc(sizeof(struct f71805f_sio_data),
1290 GFP_KERNEL);
1291 if (!pdev->dev.platform_data) {
1292 err = -ENOMEM;
1293 printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
1294 goto exit_device_put;
1295 }
1296 memcpy(pdev->dev.platform_data, sio_data,
1297 sizeof(struct f71805f_sio_data));
1298
1299 err = platform_device_add(pdev);
1300 if (err) {
1301 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
1302 err);
1303 goto exit_kfree_data;
1304 }
1305
1306 return 0;
1307
1308 exit_kfree_data:
1309 kfree(pdev->dev.platform_data);
1310 pdev->dev.platform_data = NULL;
1311 exit_device_put:
1312 platform_device_put(pdev);
1313 exit:
1314 return err;
1315 }
1316
1317 static int __init f71805f_find(int sioaddr, unsigned short *address,
1318 struct f71805f_sio_data *sio_data)
1319 {
1320 int err = -ENODEV;
1321 u16 devid;
1322
1323 static const char *names[] = {
1324 "F71805F/FG",
1325 "F71872F/FG",
1326 };
1327
1328 superio_enter(sioaddr);
1329
1330 devid = superio_inw(sioaddr, SIO_REG_MANID);
1331 if (devid != SIO_FINTEK_ID)
1332 goto exit;
1333
1334 devid = superio_inw(sioaddr, SIO_REG_DEVID);
1335 switch (devid) {
1336 case SIO_F71805F_ID:
1337 sio_data->kind = f71805f;
1338 break;
1339 case SIO_F71872F_ID:
1340 sio_data->kind = f71872f;
1341 sio_data->fnsel1 = superio_inb(sioaddr, SIO_REG_FNSEL1);
1342 break;
1343 default:
1344 printk(KERN_INFO DRVNAME ": Unsupported Fintek device, "
1345 "skipping\n");
1346 goto exit;
1347 }
1348
1349 superio_select(sioaddr, F71805F_LD_HWM);
1350 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
1351 printk(KERN_WARNING DRVNAME ": Device not activated, "
1352 "skipping\n");
1353 goto exit;
1354 }
1355
1356 *address = superio_inw(sioaddr, SIO_REG_ADDR);
1357 if (*address == 0) {
1358 printk(KERN_WARNING DRVNAME ": Base address not set, "
1359 "skipping\n");
1360 goto exit;
1361 }
1362 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */
1363
1364 err = 0;
1365 printk(KERN_INFO DRVNAME ": Found %s chip at %#x, revision %u\n",
1366 names[sio_data->kind], *address,
1367 superio_inb(sioaddr, SIO_REG_DEVREV));
1368
1369 exit:
1370 superio_exit(sioaddr);
1371 return err;
1372 }
1373
1374 static int __init f71805f_init(void)
1375 {
1376 int err;
1377 unsigned short address;
1378 struct f71805f_sio_data sio_data;
1379
1380 if (f71805f_find(0x2e, &address, &sio_data)
1381 && f71805f_find(0x4e, &address, &sio_data))
1382 return -ENODEV;
1383
1384 err = platform_driver_register(&f71805f_driver);
1385 if (err)
1386 goto exit;
1387
1388 /* Sets global pdev as a side effect */
1389 err = f71805f_device_add(address, &sio_data);
1390 if (err)
1391 goto exit_driver;
1392
1393 return 0;
1394
1395 exit_driver:
1396 platform_driver_unregister(&f71805f_driver);
1397 exit:
1398 return err;
1399 }
1400
1401 static void __exit f71805f_exit(void)
1402 {
1403 kfree(pdev->dev.platform_data);
1404 pdev->dev.platform_data = NULL;
1405 platform_device_unregister(pdev);
1406
1407 platform_driver_unregister(&f71805f_driver);
1408 }
1409
1410 MODULE_AUTHOR("Jean Delvare <khali@linux-fr>");
1411 MODULE_LICENSE("GPL");
1412 MODULE_DESCRIPTION("F71805F/F71872F hardware monitoring driver");
1413
1414 module_init(f71805f_init);
1415 module_exit(f71805f_exit);
Linux kernel - Deliverables
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