2 * f71805f.c - driver for the Fintek F71805F/FG Super-I/O chip integrated
3 * hardware monitoring features
4 * Copyright (C) 2005 Jean Delvare <khali@linux-fr.org>
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.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/slab.h>
28 #include <linux/jiffies.h>
29 #include <linux/platform_device.h>
30 #include <linux/hwmon.h>
31 #include <linux/hwmon-sysfs.h>
32 #include <linux/err.h>
33 #include <linux/mutex.h>
36 static struct platform_device *pdev;
38 #define DRVNAME "f71805f"
41 * Super-I/O constants and functions
44 #define F71805F_LD_HWM 0x04
46 #define SIO_REG_LDSEL 0x07 /* Logical device select */
47 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
48 #define SIO_REG_DEVREV 0x22 /* Device revision */
49 #define SIO_REG_MANID 0x23 /* Fintek ID (2 bytes) */
50 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
51 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
53 #define SIO_FINTEK_ID 0x1934
54 #define SIO_F71805F_ID 0x0406
57 superio_inb(int base, int reg)
64 superio_inw(int base, int reg)
68 val = inb(base + 1) << 8;
75 superio_select(int base, int ld)
77 outb(SIO_REG_LDSEL, base);
82 superio_enter(int base)
89 superio_exit(int base)
98 #define REGION_LENGTH 2
99 #define ADDR_REG_OFFSET 0
100 #define DATA_REG_OFFSET 1
102 static struct resource f71805f_resource __initdata = {
103 .flags = IORESOURCE_IO,
110 /* in nr from 0 to 8 (8-bit values) */
111 #define F71805F_REG_IN(nr) (0x10 + (nr))
112 #define F71805F_REG_IN_HIGH(nr) (0x40 + 2 * (nr))
113 #define F71805F_REG_IN_LOW(nr) (0x41 + 2 * (nr))
114 /* fan nr from 0 to 2 (12-bit values, two registers) */
115 #define F71805F_REG_FAN(nr) (0x20 + 2 * (nr))
116 #define F71805F_REG_FAN_LOW(nr) (0x28 + 2 * (nr))
117 #define F71805F_REG_FAN_CTRL(nr) (0x60 + 16 * (nr))
118 /* temp nr from 0 to 2 (8-bit values) */
119 #define F71805F_REG_TEMP(nr) (0x1B + (nr))
120 #define F71805F_REG_TEMP_HIGH(nr) (0x54 + 2 * (nr))
121 #define F71805F_REG_TEMP_HYST(nr) (0x55 + 2 * (nr))
122 #define F71805F_REG_TEMP_MODE 0x01
124 #define F71805F_REG_START 0x00
125 /* status nr from 0 to 2 */
126 #define F71805F_REG_STATUS(nr) (0x36 + (nr))
129 * Data structures and manipulation thereof
132 struct f71805f_data {
136 struct class_device *class_dev;
138 struct mutex update_lock;
139 char valid; /* !=0 if following fields are valid */
140 unsigned long last_updated; /* In jiffies */
141 unsigned long last_limits; /* In jiffies */
143 /* Register values */
149 u8 fan_enabled; /* Read once at init time */
157 static inline long in_from_reg(u8 reg)
162 /* The 2 least significant bits are not used */
163 static inline u8 in_to_reg(long val)
169 return (((val + 16) / 32) << 2);
172 /* in0 is downscaled by a factor 2 internally */
173 static inline long in0_from_reg(u8 reg)
178 static inline u8 in0_to_reg(long val)
184 return (((val + 32) / 64) << 2);
187 /* The 4 most significant bits are not used */
188 static inline long fan_from_reg(u16 reg)
191 if (!reg || reg == 0xfff)
193 return (1500000 / reg);
196 static inline u16 fan_to_reg(long rpm)
198 /* If the low limit is set below what the chip can measure,
199 store the largest possible 12-bit value in the registers,
200 so that no alarm will ever trigger. */
203 return (1500000 / rpm);
206 static inline long temp_from_reg(u8 reg)
211 static inline u8 temp_to_reg(long val)
215 else if (val > 1000 * 0xff)
217 return ((val + 500) / 1000);
224 static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
228 mutex_lock(&data->lock);
229 outb(reg, data->addr + ADDR_REG_OFFSET);
230 val = inb(data->addr + DATA_REG_OFFSET);
231 mutex_unlock(&data->lock);
236 static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
238 mutex_lock(&data->lock);
239 outb(reg, data->addr + ADDR_REG_OFFSET);
240 outb(val, data->addr + DATA_REG_OFFSET);
241 mutex_unlock(&data->lock);
244 /* It is important to read the MSB first, because doing so latches the
245 value of the LSB, so we are sure both bytes belong to the same value. */
246 static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
250 mutex_lock(&data->lock);
251 outb(reg, data->addr + ADDR_REG_OFFSET);
252 val = inb(data->addr + DATA_REG_OFFSET) << 8;
253 outb(++reg, data->addr + ADDR_REG_OFFSET);
254 val |= inb(data->addr + DATA_REG_OFFSET);
255 mutex_unlock(&data->lock);
260 static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
262 mutex_lock(&data->lock);
263 outb(reg, data->addr + ADDR_REG_OFFSET);
264 outb(val >> 8, data->addr + DATA_REG_OFFSET);
265 outb(++reg, data->addr + ADDR_REG_OFFSET);
266 outb(val & 0xff, data->addr + DATA_REG_OFFSET);
267 mutex_unlock(&data->lock);
270 static struct f71805f_data *f71805f_update_device(struct device *dev)
272 struct f71805f_data *data = dev_get_drvdata(dev);
275 mutex_lock(&data->update_lock);
277 /* Limit registers cache is refreshed after 60 seconds */
278 if (time_after(jiffies, data->last_updated + 60 * HZ)
280 for (nr = 0; nr < 9; nr++) {
281 data->in_high[nr] = f71805f_read8(data,
282 F71805F_REG_IN_HIGH(nr));
283 data->in_low[nr] = f71805f_read8(data,
284 F71805F_REG_IN_LOW(nr));
286 for (nr = 0; nr < 3; nr++) {
287 if (data->fan_enabled & (1 << nr))
288 data->fan_low[nr] = f71805f_read16(data,
289 F71805F_REG_FAN_LOW(nr));
291 for (nr = 0; nr < 3; nr++) {
292 data->temp_high[nr] = f71805f_read8(data,
293 F71805F_REG_TEMP_HIGH(nr));
294 data->temp_hyst[nr] = f71805f_read8(data,
295 F71805F_REG_TEMP_HYST(nr));
297 data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
299 data->last_limits = jiffies;
302 /* Measurement registers cache is refreshed after 1 second */
303 if (time_after(jiffies, data->last_updated + HZ)
305 for (nr = 0; nr < 9; nr++) {
306 data->in[nr] = f71805f_read8(data,
309 for (nr = 0; nr < 3; nr++) {
310 if (data->fan_enabled & (1 << nr))
311 data->fan[nr] = f71805f_read16(data,
312 F71805F_REG_FAN(nr));
314 for (nr = 0; nr < 3; nr++) {
315 data->temp[nr] = f71805f_read8(data,
316 F71805F_REG_TEMP(nr));
318 for (nr = 0; nr < 3; nr++) {
319 data->alarms[nr] = f71805f_read8(data,
320 F71805F_REG_STATUS(nr));
323 data->last_updated = jiffies;
327 mutex_unlock(&data->update_lock);
336 static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
339 struct f71805f_data *data = f71805f_update_device(dev);
341 return sprintf(buf, "%ld\n", in0_from_reg(data->in[0]));
344 static ssize_t show_in0_max(struct device *dev, struct device_attribute
347 struct f71805f_data *data = f71805f_update_device(dev);
349 return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[0]));
352 static ssize_t show_in0_min(struct device *dev, struct device_attribute
355 struct f71805f_data *data = f71805f_update_device(dev);
357 return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[0]));
360 static ssize_t set_in0_max(struct device *dev, struct device_attribute
361 *devattr, const char *buf, size_t count)
363 struct f71805f_data *data = dev_get_drvdata(dev);
364 long val = simple_strtol(buf, NULL, 10);
366 mutex_lock(&data->update_lock);
367 data->in_high[0] = in0_to_reg(val);
368 f71805f_write8(data, F71805F_REG_IN_HIGH(0), data->in_high[0]);
369 mutex_unlock(&data->update_lock);
374 static ssize_t set_in0_min(struct device *dev, struct device_attribute
375 *devattr, const char *buf, size_t count)
377 struct f71805f_data *data = dev_get_drvdata(dev);
378 long val = simple_strtol(buf, NULL, 10);
380 mutex_lock(&data->update_lock);
381 data->in_low[0] = in0_to_reg(val);
382 f71805f_write8(data, F71805F_REG_IN_LOW(0), data->in_low[0]);
383 mutex_unlock(&data->update_lock);
388 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
391 struct f71805f_data *data = f71805f_update_device(dev);
392 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
393 int nr = attr->index;
395 return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
398 static ssize_t show_in_max(struct device *dev, struct device_attribute
401 struct f71805f_data *data = f71805f_update_device(dev);
402 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
403 int nr = attr->index;
405 return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
408 static ssize_t show_in_min(struct device *dev, struct device_attribute
411 struct f71805f_data *data = f71805f_update_device(dev);
412 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
413 int nr = attr->index;
415 return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
418 static ssize_t set_in_max(struct device *dev, struct device_attribute
419 *devattr, const char *buf, size_t count)
421 struct f71805f_data *data = dev_get_drvdata(dev);
422 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
423 int nr = attr->index;
424 long val = simple_strtol(buf, NULL, 10);
426 mutex_lock(&data->update_lock);
427 data->in_high[nr] = in_to_reg(val);
428 f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
429 mutex_unlock(&data->update_lock);
434 static ssize_t set_in_min(struct device *dev, struct device_attribute
435 *devattr, const char *buf, size_t count)
437 struct f71805f_data *data = dev_get_drvdata(dev);
438 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
439 int nr = attr->index;
440 long val = simple_strtol(buf, NULL, 10);
442 mutex_lock(&data->update_lock);
443 data->in_low[nr] = in_to_reg(val);
444 f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
445 mutex_unlock(&data->update_lock);
450 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
453 struct f71805f_data *data = f71805f_update_device(dev);
454 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
455 int nr = attr->index;
457 return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
460 static ssize_t show_fan_min(struct device *dev, struct device_attribute
463 struct f71805f_data *data = f71805f_update_device(dev);
464 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
465 int nr = attr->index;
467 return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
470 static ssize_t set_fan_min(struct device *dev, struct device_attribute
471 *devattr, const char *buf, size_t count)
473 struct f71805f_data *data = dev_get_drvdata(dev);
474 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
475 int nr = attr->index;
476 long val = simple_strtol(buf, NULL, 10);
478 mutex_lock(&data->update_lock);
479 data->fan_low[nr] = fan_to_reg(val);
480 f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
481 mutex_unlock(&data->update_lock);
486 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
489 struct f71805f_data *data = f71805f_update_device(dev);
490 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
491 int nr = attr->index;
493 return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
496 static ssize_t show_temp_max(struct device *dev, struct device_attribute
499 struct f71805f_data *data = f71805f_update_device(dev);
500 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
501 int nr = attr->index;
503 return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
506 static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
509 struct f71805f_data *data = f71805f_update_device(dev);
510 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
511 int nr = attr->index;
513 return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
516 static ssize_t show_temp_type(struct device *dev, struct device_attribute
519 struct f71805f_data *data = f71805f_update_device(dev);
520 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
521 int nr = attr->index;
523 /* 3 is diode, 4 is thermistor */
524 return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
527 static ssize_t set_temp_max(struct device *dev, struct device_attribute
528 *devattr, const char *buf, size_t count)
530 struct f71805f_data *data = dev_get_drvdata(dev);
531 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
532 int nr = attr->index;
533 long val = simple_strtol(buf, NULL, 10);
535 mutex_lock(&data->update_lock);
536 data->temp_high[nr] = temp_to_reg(val);
537 f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
538 mutex_unlock(&data->update_lock);
543 static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
544 *devattr, const char *buf, size_t count)
546 struct f71805f_data *data = dev_get_drvdata(dev);
547 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
548 int nr = attr->index;
549 long val = simple_strtol(buf, NULL, 10);
551 mutex_lock(&data->update_lock);
552 data->temp_hyst[nr] = temp_to_reg(val);
553 f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
554 mutex_unlock(&data->update_lock);
559 static ssize_t show_alarms_in(struct device *dev, struct device_attribute
562 struct f71805f_data *data = f71805f_update_device(dev);
564 return sprintf(buf, "%d\n", data->alarms[0] |
565 ((data->alarms[1] & 0x01) << 8));
568 static ssize_t show_alarms_fan(struct device *dev, struct device_attribute
571 struct f71805f_data *data = f71805f_update_device(dev);
573 return sprintf(buf, "%d\n", data->alarms[2] & 0x07);
576 static ssize_t show_alarms_temp(struct device *dev, struct device_attribute
579 struct f71805f_data *data = f71805f_update_device(dev);
581 return sprintf(buf, "%d\n", (data->alarms[1] >> 3) & 0x07);
584 static ssize_t show_name(struct device *dev, struct device_attribute
587 struct f71805f_data *data = dev_get_drvdata(dev);
589 return sprintf(buf, "%s\n", data->name);
592 static struct device_attribute f71805f_dev_attr[] = {
593 __ATTR(in0_input, S_IRUGO, show_in0, NULL),
594 __ATTR(in0_max, S_IRUGO| S_IWUSR, show_in0_max, set_in0_max),
595 __ATTR(in0_min, S_IRUGO| S_IWUSR, show_in0_min, set_in0_min),
596 __ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL),
597 __ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL),
598 __ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL),
599 __ATTR(name, S_IRUGO, show_name, NULL),
602 static struct sensor_device_attribute f71805f_sensor_attr[] = {
603 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
604 SENSOR_ATTR(in1_max, S_IRUGO | S_IWUSR,
605 show_in_max, set_in_max, 1),
606 SENSOR_ATTR(in1_min, S_IRUGO | S_IWUSR,
607 show_in_min, set_in_min, 1),
608 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
609 SENSOR_ATTR(in2_max, S_IRUGO | S_IWUSR,
610 show_in_max, set_in_max, 2),
611 SENSOR_ATTR(in2_min, S_IRUGO | S_IWUSR,
612 show_in_min, set_in_min, 2),
613 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
614 SENSOR_ATTR(in3_max, S_IRUGO | S_IWUSR,
615 show_in_max, set_in_max, 3),
616 SENSOR_ATTR(in3_min, S_IRUGO | S_IWUSR,
617 show_in_min, set_in_min, 3),
618 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
619 SENSOR_ATTR(in4_max, S_IRUGO | S_IWUSR,
620 show_in_max, set_in_max, 4),
621 SENSOR_ATTR(in4_min, S_IRUGO | S_IWUSR,
622 show_in_min, set_in_min, 4),
623 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
624 SENSOR_ATTR(in5_max, S_IRUGO | S_IWUSR,
625 show_in_max, set_in_max, 5),
626 SENSOR_ATTR(in5_min, S_IRUGO | S_IWUSR,
627 show_in_min, set_in_min, 5),
628 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
629 SENSOR_ATTR(in6_max, S_IRUGO | S_IWUSR,
630 show_in_max, set_in_max, 6),
631 SENSOR_ATTR(in6_min, S_IRUGO | S_IWUSR,
632 show_in_min, set_in_min, 6),
633 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
634 SENSOR_ATTR(in7_max, S_IRUGO | S_IWUSR,
635 show_in_max, set_in_max, 7),
636 SENSOR_ATTR(in7_min, S_IRUGO | S_IWUSR,
637 show_in_min, set_in_min, 7),
638 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
639 SENSOR_ATTR(in8_max, S_IRUGO | S_IWUSR,
640 show_in_max, set_in_max, 8),
641 SENSOR_ATTR(in8_min, S_IRUGO | S_IWUSR,
642 show_in_min, set_in_min, 8),
644 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0),
645 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
646 show_temp_max, set_temp_max, 0),
647 SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
648 show_temp_hyst, set_temp_hyst, 0),
649 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
650 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1),
651 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
652 show_temp_max, set_temp_max, 1),
653 SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
654 show_temp_hyst, set_temp_hyst, 1),
655 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
656 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2),
657 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
658 show_temp_max, set_temp_max, 2),
659 SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
660 show_temp_hyst, set_temp_hyst, 2),
661 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
664 static struct sensor_device_attribute f71805f_fan_attr[] = {
665 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
666 SENSOR_ATTR(fan1_min, S_IRUGO | S_IWUSR,
667 show_fan_min, set_fan_min, 0),
668 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
669 SENSOR_ATTR(fan2_min, S_IRUGO | S_IWUSR,
670 show_fan_min, set_fan_min, 1),
671 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
672 SENSOR_ATTR(fan3_min, S_IRUGO | S_IWUSR,
673 show_fan_min, set_fan_min, 2),
677 * Device registration and initialization
680 static void __devinit f71805f_init_device(struct f71805f_data *data)
685 reg = f71805f_read8(data, F71805F_REG_START);
686 if ((reg & 0x41) != 0x01) {
687 printk(KERN_DEBUG DRVNAME ": Starting monitoring "
689 f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
692 /* Fan monitoring can be disabled. If it is, we won't be polling
693 the register values, and won't create the related sysfs files. */
694 for (i = 0; i < 3; i++) {
695 reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(i));
697 data->fan_enabled |= (1 << i);
701 static int __devinit f71805f_probe(struct platform_device *pdev)
703 struct f71805f_data *data;
704 struct resource *res;
707 if (!(data = kzalloc(sizeof(struct f71805f_data), GFP_KERNEL))) {
709 printk(KERN_ERR DRVNAME ": Out of memory\n");
713 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
714 data->addr = res->start;
715 mutex_init(&data->lock);
716 data->name = "f71805f";
717 mutex_init(&data->update_lock);
719 platform_set_drvdata(pdev, data);
721 data->class_dev = hwmon_device_register(&pdev->dev);
722 if (IS_ERR(data->class_dev)) {
723 err = PTR_ERR(data->class_dev);
724 dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
728 /* Initialize the F71805F chip */
729 f71805f_init_device(data);
731 /* Register sysfs interface files */
732 for (i = 0; i < ARRAY_SIZE(f71805f_dev_attr); i++) {
733 err = device_create_file(&pdev->dev, &f71805f_dev_attr[i]);
737 for (i = 0; i < ARRAY_SIZE(f71805f_sensor_attr); i++) {
738 err = device_create_file(&pdev->dev,
739 &f71805f_sensor_attr[i].dev_attr);
743 for (i = 0; i < ARRAY_SIZE(f71805f_fan_attr); i++) {
744 if (!(data->fan_enabled & (1 << (i / 2))))
746 err = device_create_file(&pdev->dev,
747 &f71805f_fan_attr[i].dev_attr);
755 dev_err(&pdev->dev, "Sysfs interface creation failed\n");
756 hwmon_device_unregister(data->class_dev);
763 static int __devexit f71805f_remove(struct platform_device *pdev)
765 struct f71805f_data *data = platform_get_drvdata(pdev);
767 platform_set_drvdata(pdev, NULL);
768 hwmon_device_unregister(data->class_dev);
774 static struct platform_driver f71805f_driver = {
776 .owner = THIS_MODULE,
779 .probe = f71805f_probe,
780 .remove = __devexit_p(f71805f_remove),
783 static int __init f71805f_device_add(unsigned short address)
787 pdev = platform_device_alloc(DRVNAME, address);
790 printk(KERN_ERR DRVNAME ": Device allocation failed\n");
794 f71805f_resource.start = address;
795 f71805f_resource.end = address + REGION_LENGTH - 1;
796 f71805f_resource.name = pdev->name;
797 err = platform_device_add_resources(pdev, &f71805f_resource, 1);
799 printk(KERN_ERR DRVNAME ": Device resource addition failed "
801 goto exit_device_put;
804 err = platform_device_add(pdev);
806 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
808 goto exit_device_put;
814 platform_device_put(pdev);
819 static int __init f71805f_find(int sioaddr, unsigned short *address)
824 superio_enter(sioaddr);
826 devid = superio_inw(sioaddr, SIO_REG_MANID);
827 if (devid != SIO_FINTEK_ID)
830 devid = superio_inw(sioaddr, SIO_REG_DEVID);
831 if (devid != SIO_F71805F_ID) {
832 printk(KERN_INFO DRVNAME ": Unsupported Fintek device, "
837 superio_select(sioaddr, F71805F_LD_HWM);
838 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
839 printk(KERN_WARNING DRVNAME ": Device not activated, "
844 *address = superio_inw(sioaddr, SIO_REG_ADDR);
846 printk(KERN_WARNING DRVNAME ": Base address not set, "
852 printk(KERN_INFO DRVNAME ": Found F71805F chip at %#x, revision %u\n",
853 *address, superio_inb(sioaddr, SIO_REG_DEVREV));
856 superio_exit(sioaddr);
860 static int __init f71805f_init(void)
863 unsigned short address;
865 if (f71805f_find(0x2e, &address)
866 && f71805f_find(0x4e, &address))
869 err = platform_driver_register(&f71805f_driver);
873 /* Sets global pdev as a side effect */
874 err = f71805f_device_add(address);
881 platform_driver_unregister(&f71805f_driver);
886 static void __exit f71805f_exit(void)
888 platform_device_unregister(pdev);
889 platform_driver_unregister(&f71805f_driver);
892 MODULE_AUTHOR("Jean Delvare <khali@linux-fr>");
893 MODULE_LICENSE("GPL");
894 MODULE_DESCRIPTION("F71805F hardware monitoring driver");
896 module_init(f71805f_init);
897 module_exit(f71805f_exit);