1 /***************************************************************************
2 * Copyright (C) 2006 by Hans Edgington <hans@edgington.nl> *
3 * Copyright (C) 2007 by Hans de Goede <j.w.r.degoede@hhs.nl> *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include <linux/module.h>
22 #include <linux/init.h>
23 #include <linux/slab.h>
24 #include <linux/jiffies.h>
25 #include <linux/platform_device.h>
26 #include <linux/hwmon.h>
27 #include <linux/hwmon-sysfs.h>
28 #include <linux/err.h>
29 #include <linux/mutex.h>
32 #define DRVNAME "f71882fg"
34 #define SIO_F71882FG_LD_HWM 0x04 /* Hardware monitor logical device*/
35 #define SIO_UNLOCK_KEY 0x87 /* Key to enable Super-I/O */
36 #define SIO_LOCK_KEY 0xAA /* Key to diasble Super-I/O */
38 #define SIO_REG_LDSEL 0x07 /* Logical device select */
39 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
40 #define SIO_REG_DEVREV 0x22 /* Device revision */
41 #define SIO_REG_MANID 0x23 /* Fintek ID (2 bytes) */
42 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
43 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
45 #define SIO_FINTEK_ID 0x1934 /* Manufacturers ID */
46 #define SIO_F71882_ID 0x0541 /* Chipset ID */
48 #define REGION_LENGTH 8
49 #define ADDR_REG_OFFSET 5
50 #define DATA_REG_OFFSET 6
52 #define F71882FG_REG_PECI 0x0A
54 #define F71882FG_REG_IN_STATUS 0x12
55 #define F71882FG_REG_IN_BEEP 0x13
56 #define F71882FG_REG_IN(nr) (0x20 + (nr))
57 #define F71882FG_REG_IN1_HIGH 0x32
59 #define F71882FG_REG_FAN(nr) (0xA0 + (16 * (nr)))
60 #define F71882FG_REG_FAN_STATUS 0x92
61 #define F71882FG_REG_FAN_BEEP 0x93
63 #define F71882FG_REG_TEMP(nr) (0x72 + 2 * (nr))
64 #define F71882FG_REG_TEMP_OVT(nr) (0x82 + 2 * (nr))
65 #define F71882FG_REG_TEMP_HIGH(nr) (0x83 + 2 * (nr))
66 #define F71882FG_REG_TEMP_STATUS 0x62
67 #define F71882FG_REG_TEMP_BEEP 0x63
68 #define F71882FG_REG_TEMP_HYST1 0x6C
69 #define F71882FG_REG_TEMP_HYST23 0x6D
70 #define F71882FG_REG_TEMP_TYPE 0x6B
71 #define F71882FG_REG_TEMP_DIODE_OPEN 0x6F
73 #define F71882FG_REG_START 0x01
75 #define FAN_MIN_DETECT 366 /* Lowest detectable fanspeed */
77 static struct platform_device *f71882fg_pdev = NULL;
79 /* Super-I/O Function prototypes */
80 static inline int superio_inb(int base, int reg);
81 static inline int superio_inw(int base, int reg);
82 static inline void superio_enter(int base);
83 static inline void superio_select(int base, int ld);
84 static inline void superio_exit(int base);
86 static inline u16 fan_from_reg ( u16 reg );
88 struct f71882fg_data {
90 struct device *hwmon_dev;
92 struct mutex update_lock;
93 char valid; /* !=0 if following fields are valid */
94 unsigned long last_updated; /* In jiffies */
95 unsigned long last_limits; /* In jiffies */
115 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg);
116 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg);
117 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val);
120 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
122 static ssize_t show_in_max(struct device *dev, struct device_attribute
123 *devattr, char *buf);
124 static ssize_t store_in_max(struct device *dev, struct device_attribute
125 *devattr, const char *buf, size_t count);
126 static ssize_t show_in_beep(struct device *dev, struct device_attribute
127 *devattr, char *buf);
128 static ssize_t store_in_beep(struct device *dev, struct device_attribute
129 *devattr, const char *buf, size_t count);
130 static ssize_t show_in_alarm(struct device *dev, struct device_attribute
131 *devattr, char *buf);
133 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
135 static ssize_t show_fan_beep(struct device *dev, struct device_attribute
136 *devattr, char *buf);
137 static ssize_t store_fan_beep(struct device *dev, struct device_attribute
138 *devattr, const char *buf, size_t count);
139 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
140 *devattr, char *buf);
142 static ssize_t show_temp(struct device *dev, struct device_attribute
143 *devattr, char *buf);
144 static ssize_t show_temp_max(struct device *dev, struct device_attribute
145 *devattr, char *buf);
146 static ssize_t store_temp_max(struct device *dev, struct device_attribute
147 *devattr, const char *buf, size_t count);
148 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
149 *devattr, char *buf);
150 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
151 *devattr, const char *buf, size_t count);
152 static ssize_t show_temp_crit(struct device *dev, struct device_attribute
153 *devattr, char *buf);
154 static ssize_t store_temp_crit(struct device *dev, struct device_attribute
155 *devattr, const char *buf, size_t count);
156 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
157 *devattr, char *buf);
158 static ssize_t show_temp_type(struct device *dev, struct device_attribute
159 *devattr, char *buf);
160 static ssize_t show_temp_beep(struct device *dev, struct device_attribute
161 *devattr, char *buf);
162 static ssize_t store_temp_beep(struct device *dev, struct device_attribute
163 *devattr, const char *buf, size_t count);
164 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
165 *devattr, char *buf);
166 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
167 *devattr, char *buf);
169 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
172 static int __devinit f71882fg_probe(struct platform_device * pdev);
173 static int __devexit f71882fg_remove(struct platform_device *pdev);
174 static int __init f71882fg_init(void);
175 static int __init f71882fg_find(int sioaddr, unsigned short *address);
176 static int __init f71882fg_device_add(unsigned short address);
177 static void __exit f71882fg_exit(void);
179 static struct platform_driver f71882fg_driver = {
181 .owner = THIS_MODULE,
184 .probe = f71882fg_probe,
185 .remove = __devexit_p(f71882fg_remove),
188 static struct device_attribute f71882fg_dev_attr[] =
190 __ATTR( name, S_IRUGO, show_name, NULL ),
193 static struct sensor_device_attribute f71882fg_in_temp_attr[] =
195 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
196 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
197 SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1),
198 SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1),
199 SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1),
200 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
201 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
202 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
203 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
204 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
205 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
206 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
207 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0),
208 SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
210 SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
211 store_temp_max_hyst, 0),
212 SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
214 SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0),
215 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
216 SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep,
218 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0),
219 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
220 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1),
221 SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
223 SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
224 store_temp_max_hyst, 1),
225 SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
227 SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1),
228 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
229 SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep,
231 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1),
232 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
233 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2),
234 SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
236 SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
237 store_temp_max_hyst, 2),
238 SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
240 SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2),
241 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
242 SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep,
244 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2),
245 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2)
248 static struct sensor_device_attribute f71882fg_fan_attr[] =
250 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
251 SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
253 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0),
254 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
255 SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
257 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1),
258 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
259 SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
261 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2),
262 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
263 SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
265 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3)
269 /* Super I/O functions */
270 static inline int superio_inb(int base, int reg)
273 return inb(base + 1);
276 static int superio_inw(int base, int reg)
280 val = inb(base + 1) << 8;
282 val |= inb(base + 1);
286 static inline void superio_enter(int base)
288 /* according to the datasheet the key must be send twice! */
289 outb( SIO_UNLOCK_KEY, base);
290 outb( SIO_UNLOCK_KEY, base);
293 static inline void superio_select( int base, int ld)
295 outb(SIO_REG_LDSEL, base);
299 static inline void superio_exit(int base)
301 outb(SIO_LOCK_KEY, base);
304 static inline u16 fan_from_reg(u16 reg)
306 return reg ? (1500000 / reg) : 0;
309 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg)
313 outb(reg, data->addr + ADDR_REG_OFFSET);
314 val = inb(data->addr + DATA_REG_OFFSET);
319 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg)
323 outb(reg++, data->addr + ADDR_REG_OFFSET);
324 val = inb(data->addr + DATA_REG_OFFSET) << 8;
325 outb(reg, data->addr + ADDR_REG_OFFSET);
326 val |= inb(data->addr + DATA_REG_OFFSET);
331 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val)
333 outb(reg, data->addr + ADDR_REG_OFFSET);
334 outb(val, data->addr + DATA_REG_OFFSET);
337 static struct f71882fg_data *f71882fg_update_device(struct device * dev)
339 struct f71882fg_data *data = dev_get_drvdata(dev);
342 mutex_lock(&data->update_lock);
344 /* Update once every 60 seconds */
345 if ( time_after(jiffies, data->last_limits + 60 * HZ ) ||
347 data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH);
348 data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);
350 /* Get High & boundary temps*/
351 for (nr = 0; nr < 3; nr++) {
352 data->temp_ovt[nr] = f71882fg_read8(data,
353 F71882FG_REG_TEMP_OVT(nr));
354 data->temp_high[nr] = f71882fg_read8(data,
355 F71882FG_REG_TEMP_HIGH(nr));
358 /* Have to hardcode hyst*/
359 data->temp_hyst[0] = f71882fg_read8(data,
360 F71882FG_REG_TEMP_HYST1) >> 4;
361 /* Hyst temps 2 & 3 stored in same register */
362 reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
363 data->temp_hyst[1] = reg & 0x0F;
364 data->temp_hyst[2] = reg >> 4;
366 /* Have to hardcode type, because temp1 is special */
367 reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
368 reg2 = f71882fg_read8(data, F71882FG_REG_PECI);
369 if ((reg2 & 0x03) == 0x01)
370 data->temp_type[0] = 6 /* PECI */;
371 else if ((reg2 & 0x03) == 0x02)
372 data->temp_type[0] = 5 /* AMDSI */;
374 data->temp_type[0] = (reg & 0x02) ? 2 : 4;
376 data->temp_type[1] = (reg & 0x04) ? 2 : 4;
377 data->temp_type[2] = (reg & 0x08) ? 2 : 4;
379 data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP);
381 data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP);
383 data->last_limits = jiffies;
386 /* Update every second */
387 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
388 data->temp_status = f71882fg_read8(data,
389 F71882FG_REG_TEMP_STATUS);
390 data->temp_diode_open = f71882fg_read8(data,
391 F71882FG_REG_TEMP_DIODE_OPEN);
392 for (nr = 0; nr < 3; nr++)
393 data->temp[nr] = f71882fg_read8(data,
394 F71882FG_REG_TEMP(nr));
396 data->fan_status = f71882fg_read8(data,
397 F71882FG_REG_FAN_STATUS);
398 for (nr = 0; nr < 4; nr++)
399 data->fan[nr] = f71882fg_read16(data,
400 F71882FG_REG_FAN(nr));
402 data->in_status = f71882fg_read8(data,
403 F71882FG_REG_IN_STATUS);
404 for (nr = 0; nr < 9; nr++)
405 data->in[nr] = f71882fg_read8(data,
406 F71882FG_REG_IN(nr));
408 data->last_updated = jiffies;
412 mutex_unlock(&data->update_lock);
417 /* Sysfs Interface */
418 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
421 struct f71882fg_data *data = f71882fg_update_device(dev);
422 int nr = to_sensor_dev_attr(devattr)->index;
423 int speed = fan_from_reg(data->fan[nr]);
425 if (speed == FAN_MIN_DETECT)
428 return sprintf(buf, "%d\n", speed);
431 static ssize_t show_fan_beep(struct device *dev, struct device_attribute
434 struct f71882fg_data *data = f71882fg_update_device(dev);
435 int nr = to_sensor_dev_attr(devattr)->index;
437 if (data->fan_beep & (1 << nr))
438 return sprintf(buf, "1\n");
440 return sprintf(buf, "0\n");
443 static ssize_t store_fan_beep(struct device *dev, struct device_attribute
444 *devattr, const char *buf, size_t count)
446 struct f71882fg_data *data = dev_get_drvdata(dev);
447 int nr = to_sensor_dev_attr(devattr)->index;
448 int val = simple_strtoul(buf, NULL, 10);
450 mutex_lock(&data->update_lock);
452 data->fan_beep |= 1 << nr;
454 data->fan_beep &= ~(1 << nr);
456 f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep);
457 mutex_unlock(&data->update_lock);
462 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
465 struct f71882fg_data *data = f71882fg_update_device(dev);
466 int nr = to_sensor_dev_attr(devattr)->index;
468 if (data->fan_status & (1 << nr))
469 return sprintf(buf, "1\n");
471 return sprintf(buf, "0\n");
474 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
477 struct f71882fg_data *data = f71882fg_update_device(dev);
478 int nr = to_sensor_dev_attr(devattr)->index;
480 return sprintf(buf, "%d\n", data->in[nr] * 8);
483 static ssize_t show_in_max(struct device *dev, struct device_attribute
486 struct f71882fg_data *data = f71882fg_update_device(dev);
488 return sprintf(buf, "%d\n", data->in1_max * 8);
491 static ssize_t store_in_max(struct device *dev, struct device_attribute
492 *devattr, const char *buf, size_t count)
494 struct f71882fg_data *data = dev_get_drvdata(dev);
495 int val = simple_strtoul(buf, NULL, 10) / 8;
500 mutex_lock(&data->update_lock);
501 f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
503 mutex_unlock(&data->update_lock);
508 static ssize_t show_in_beep(struct device *dev, struct device_attribute
511 struct f71882fg_data *data = f71882fg_update_device(dev);
512 int nr = to_sensor_dev_attr(devattr)->index;
514 if (data->in_beep & (1 << nr))
515 return sprintf(buf, "1\n");
517 return sprintf(buf, "0\n");
520 static ssize_t store_in_beep(struct device *dev, struct device_attribute
521 *devattr, const char *buf, size_t count)
523 struct f71882fg_data *data = dev_get_drvdata(dev);
524 int nr = to_sensor_dev_attr(devattr)->index;
525 int val = simple_strtoul(buf, NULL, 10);
527 mutex_lock(&data->update_lock);
529 data->in_beep |= 1 << nr;
531 data->in_beep &= ~(1 << nr);
533 f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
534 mutex_unlock(&data->update_lock);
539 static ssize_t show_in_alarm(struct device *dev, struct device_attribute
542 struct f71882fg_data *data = f71882fg_update_device(dev);
543 int nr = to_sensor_dev_attr(devattr)->index;
545 if (data->in_status & (1 << nr))
546 return sprintf(buf, "1\n");
548 return sprintf(buf, "0\n");
551 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
554 struct f71882fg_data *data = f71882fg_update_device(dev);
555 int nr = to_sensor_dev_attr(devattr)->index;
557 return sprintf(buf, "%d\n", data->temp[nr] * 1000);
560 static ssize_t show_temp_max(struct device *dev, struct device_attribute
563 struct f71882fg_data *data = f71882fg_update_device(dev);
564 int nr = to_sensor_dev_attr(devattr)->index;
566 return sprintf(buf, "%d\n", data->temp_high[nr] * 1000);
569 static ssize_t store_temp_max(struct device *dev, struct device_attribute
570 *devattr, const char *buf, size_t count)
572 struct f71882fg_data *data = dev_get_drvdata(dev);
573 int nr = to_sensor_dev_attr(devattr)->index;
574 int val = simple_strtoul(buf, NULL, 10) / 1000;
579 mutex_lock(&data->update_lock);
580 f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val);
581 data->temp_high[nr] = val;
582 mutex_unlock(&data->update_lock);
587 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
590 struct f71882fg_data *data = f71882fg_update_device(dev);
591 int nr = to_sensor_dev_attr(devattr)->index;
593 return sprintf(buf, "%d\n",
594 (data->temp_high[nr] - data->temp_hyst[nr]) * 1000);
597 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
598 *devattr, const char *buf, size_t count)
600 struct f71882fg_data *data = dev_get_drvdata(dev);
601 int nr = to_sensor_dev_attr(devattr)->index;
602 int val = simple_strtoul(buf, NULL, 10) / 1000;
605 mutex_lock(&data->update_lock);
607 /* convert abs to relative and check */
608 val = data->temp_high[nr] - val;
609 if (val < 0 || val > 15) {
611 goto store_temp_max_hyst_exit;
614 data->temp_hyst[nr] = val;
616 /* convert value to register contents */
622 val = val | (data->temp_hyst[2] << 4);
625 val = data->temp_hyst[1] | (val << 4);
629 f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 :
630 F71882FG_REG_TEMP_HYST1, val);
632 store_temp_max_hyst_exit:
633 mutex_unlock(&data->update_lock);
637 static ssize_t show_temp_crit(struct device *dev, struct device_attribute
640 struct f71882fg_data *data = f71882fg_update_device(dev);
641 int nr = to_sensor_dev_attr(devattr)->index;
643 return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000);
646 static ssize_t store_temp_crit(struct device *dev, struct device_attribute
647 *devattr, const char *buf, size_t count)
649 struct f71882fg_data *data = dev_get_drvdata(dev);
650 int nr = to_sensor_dev_attr(devattr)->index;
651 int val = simple_strtoul(buf, NULL, 10) / 1000;
656 mutex_lock(&data->update_lock);
657 f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val);
658 data->temp_ovt[nr] = val;
659 mutex_unlock(&data->update_lock);
664 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
667 struct f71882fg_data *data = f71882fg_update_device(dev);
668 int nr = to_sensor_dev_attr(devattr)->index;
670 return sprintf(buf, "%d\n",
671 (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000);
674 static ssize_t show_temp_type(struct device *dev, struct device_attribute
677 struct f71882fg_data *data = f71882fg_update_device(dev);
678 int nr = to_sensor_dev_attr(devattr)->index;
680 return sprintf(buf, "%d\n", data->temp_type[nr]);
683 static ssize_t show_temp_beep(struct device *dev, struct device_attribute
686 struct f71882fg_data *data = f71882fg_update_device(dev);
687 int nr = to_sensor_dev_attr(devattr)->index;
689 if (data->temp_beep & (1 << (nr + 1)))
690 return sprintf(buf, "1\n");
692 return sprintf(buf, "0\n");
695 static ssize_t store_temp_beep(struct device *dev, struct device_attribute
696 *devattr, const char *buf, size_t count)
698 struct f71882fg_data *data = dev_get_drvdata(dev);
699 int nr = to_sensor_dev_attr(devattr)->index;
700 int val = simple_strtoul(buf, NULL, 10);
702 mutex_lock(&data->update_lock);
704 data->temp_beep |= 1 << (nr + 1);
706 data->temp_beep &= ~(1 << (nr + 1));
708 f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep);
709 mutex_unlock(&data->update_lock);
714 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
717 struct f71882fg_data *data = f71882fg_update_device(dev);
718 int nr = to_sensor_dev_attr(devattr)->index;
720 if (data->temp_status & (1 << (nr + 1)))
721 return sprintf(buf, "1\n");
723 return sprintf(buf, "0\n");
726 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
729 struct f71882fg_data *data = f71882fg_update_device(dev);
730 int nr = to_sensor_dev_attr(devattr)->index;
732 if (data->temp_diode_open & (1 << (nr + 1)))
733 return sprintf(buf, "1\n");
735 return sprintf(buf, "0\n");
738 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
741 return sprintf(buf, DRVNAME "\n");
745 static int __devinit f71882fg_probe(struct platform_device * pdev)
747 struct f71882fg_data *data;
751 if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL)))
754 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
755 mutex_init(&data->update_lock);
756 platform_set_drvdata(pdev, data);
758 /* Register sysfs interface files */
759 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) {
760 err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]);
762 goto exit_unregister_sysfs;
765 start_reg = f71882fg_read8(data, F71882FG_REG_START);
766 if (start_reg & 0x01) {
767 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) {
768 err = device_create_file(&pdev->dev,
769 &f71882fg_in_temp_attr[i].dev_attr);
771 goto exit_unregister_sysfs;
775 if (start_reg & 0x02) {
776 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) {
777 err = device_create_file(&pdev->dev,
778 &f71882fg_fan_attr[i].dev_attr);
780 goto exit_unregister_sysfs;
784 data->hwmon_dev = hwmon_device_register(&pdev->dev);
785 if (IS_ERR(data->hwmon_dev)) {
786 err = PTR_ERR(data->hwmon_dev);
787 goto exit_unregister_sysfs;
792 exit_unregister_sysfs:
793 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
794 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
796 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
797 device_remove_file(&pdev->dev,
798 &f71882fg_in_temp_attr[i].dev_attr);
800 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
801 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
808 static int __devexit f71882fg_remove(struct platform_device *pdev)
811 struct f71882fg_data *data = platform_get_drvdata(pdev);
813 platform_set_drvdata(pdev, NULL);
814 hwmon_device_unregister(data->hwmon_dev);
816 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
817 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
819 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
820 device_remove_file(&pdev->dev,
821 &f71882fg_in_temp_attr[i].dev_attr);
823 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
824 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
831 static int __init f71882fg_find(int sioaddr, unsigned short *address)
836 struct f71882fg_data data;
838 superio_enter(sioaddr);
840 devid = superio_inw(sioaddr, SIO_REG_MANID);
841 if (devid != SIO_FINTEK_ID) {
842 printk(KERN_INFO DRVNAME ": Not a Fintek device\n");
846 devid = superio_inw(sioaddr, SIO_REG_DEVID);
847 if (devid != SIO_F71882_ID) {
848 printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n");
852 superio_select(sioaddr, SIO_F71882FG_LD_HWM);
853 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
854 printk(KERN_WARNING DRVNAME ": Device not activated\n");
858 *address = superio_inw(sioaddr, SIO_REG_ADDR);
861 printk(KERN_WARNING DRVNAME ": Base address not set\n");
864 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */
866 data.addr = *address;
867 start_reg = f71882fg_read8(&data, F71882FG_REG_START);
868 if (!(start_reg & 0x03)) {
869 printk(KERN_WARNING DRVNAME
870 ": Hardware monitoring not activated\n");
875 printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n",
876 (unsigned int)*address,
877 (int)superio_inb(sioaddr, SIO_REG_DEVREV));
879 superio_exit(sioaddr);
883 static int __init f71882fg_device_add(unsigned short address)
885 struct resource res = {
887 .end = address + REGION_LENGTH - 1,
888 .flags = IORESOURCE_IO,
892 f71882fg_pdev = platform_device_alloc(DRVNAME, address);
896 res.name = f71882fg_pdev->name;
897 err = platform_device_add_resources(f71882fg_pdev, &res, 1);
899 printk(KERN_ERR DRVNAME ": Device resource addition failed\n");
900 goto exit_device_put;
903 err = platform_device_add(f71882fg_pdev);
905 printk(KERN_ERR DRVNAME ": Device addition failed\n");
906 goto exit_device_put;
912 platform_device_put(f71882fg_pdev);
917 static int __init f71882fg_init(void)
920 unsigned short address;
922 if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address))
925 if ((err = platform_driver_register(&f71882fg_driver)))
928 if ((err = f71882fg_device_add(address)))
934 platform_driver_unregister(&f71882fg_driver);
939 static void __exit f71882fg_exit(void)
941 platform_device_unregister(f71882fg_pdev);
942 platform_driver_unregister(&f71882fg_driver);
945 MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver");
946 MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)");
947 MODULE_LICENSE("GPL");
949 module_init(f71882fg_init);
950 module_exit(f71882fg_exit);