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 unsigned short force_id;
78 module_param(force_id, ushort, 0);
79 MODULE_PARM_DESC(force_id, "Override the detected device ID");
81 static struct platform_device *f71882fg_pdev = NULL;
83 /* Super-I/O Function prototypes */
84 static inline int superio_inb(int base, int reg);
85 static inline int superio_inw(int base, int reg);
86 static inline void superio_enter(int base);
87 static inline void superio_select(int base, int ld);
88 static inline void superio_exit(int base);
90 static inline u16 fan_from_reg ( u16 reg );
92 struct f71882fg_data {
94 struct device *hwmon_dev;
96 struct mutex update_lock;
97 char valid; /* !=0 if following fields are valid */
98 unsigned long last_updated; /* In jiffies */
99 unsigned long last_limits; /* In jiffies */
101 /* Register Values */
119 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg);
120 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg);
121 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val);
124 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
126 static ssize_t show_in_max(struct device *dev, struct device_attribute
127 *devattr, char *buf);
128 static ssize_t store_in_max(struct device *dev, struct device_attribute
129 *devattr, const char *buf, size_t count);
130 static ssize_t show_in_beep(struct device *dev, struct device_attribute
131 *devattr, char *buf);
132 static ssize_t store_in_beep(struct device *dev, struct device_attribute
133 *devattr, const char *buf, size_t count);
134 static ssize_t show_in_alarm(struct device *dev, struct device_attribute
135 *devattr, char *buf);
137 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
139 static ssize_t show_fan_beep(struct device *dev, struct device_attribute
140 *devattr, char *buf);
141 static ssize_t store_fan_beep(struct device *dev, struct device_attribute
142 *devattr, const char *buf, size_t count);
143 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
144 *devattr, char *buf);
146 static ssize_t show_temp(struct device *dev, struct device_attribute
147 *devattr, char *buf);
148 static ssize_t show_temp_max(struct device *dev, struct device_attribute
149 *devattr, char *buf);
150 static ssize_t store_temp_max(struct device *dev, struct device_attribute
151 *devattr, const char *buf, size_t count);
152 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
153 *devattr, char *buf);
154 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
155 *devattr, const char *buf, size_t count);
156 static ssize_t show_temp_crit(struct device *dev, struct device_attribute
157 *devattr, char *buf);
158 static ssize_t store_temp_crit(struct device *dev, struct device_attribute
159 *devattr, const char *buf, size_t count);
160 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
161 *devattr, char *buf);
162 static ssize_t show_temp_type(struct device *dev, struct device_attribute
163 *devattr, char *buf);
164 static ssize_t show_temp_beep(struct device *dev, struct device_attribute
165 *devattr, char *buf);
166 static ssize_t store_temp_beep(struct device *dev, struct device_attribute
167 *devattr, const char *buf, size_t count);
168 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
169 *devattr, char *buf);
170 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
171 *devattr, char *buf);
173 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
176 static int __devinit f71882fg_probe(struct platform_device * pdev);
177 static int __devexit f71882fg_remove(struct platform_device *pdev);
178 static int __init f71882fg_init(void);
179 static int __init f71882fg_find(int sioaddr, unsigned short *address);
180 static int __init f71882fg_device_add(unsigned short address);
181 static void __exit f71882fg_exit(void);
183 static struct platform_driver f71882fg_driver = {
185 .owner = THIS_MODULE,
188 .probe = f71882fg_probe,
189 .remove = __devexit_p(f71882fg_remove),
192 static struct device_attribute f71882fg_dev_attr[] =
194 __ATTR( name, S_IRUGO, show_name, NULL ),
197 static struct sensor_device_attribute f71882fg_in_temp_attr[] =
199 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
200 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
201 SENSOR_ATTR(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max, 1),
202 SENSOR_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep, 1),
203 SENSOR_ATTR(in1_alarm, S_IRUGO, show_in_alarm, NULL, 1),
204 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
205 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
206 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
207 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
208 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
209 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
210 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
211 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0),
212 SENSOR_ATTR(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
214 SENSOR_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
215 store_temp_max_hyst, 0),
216 SENSOR_ATTR(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
218 SENSOR_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 0),
219 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
220 SENSOR_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep,
222 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0),
223 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
224 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1),
225 SENSOR_ATTR(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
227 SENSOR_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
228 store_temp_max_hyst, 1),
229 SENSOR_ATTR(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
231 SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1),
232 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
233 SENSOR_ATTR(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep,
235 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1),
236 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
237 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2),
238 SENSOR_ATTR(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
240 SENSOR_ATTR(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
241 store_temp_max_hyst, 2),
242 SENSOR_ATTR(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
244 SENSOR_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 2),
245 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
246 SENSOR_ATTR(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep,
248 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2),
249 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2)
252 static struct sensor_device_attribute f71882fg_fan_attr[] =
254 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
255 SENSOR_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
257 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0),
258 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
259 SENSOR_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
261 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1),
262 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
263 SENSOR_ATTR(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
265 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2),
266 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
267 SENSOR_ATTR(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
269 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3)
273 /* Super I/O functions */
274 static inline int superio_inb(int base, int reg)
277 return inb(base + 1);
280 static int superio_inw(int base, int reg)
284 val = inb(base + 1) << 8;
286 val |= inb(base + 1);
290 static inline void superio_enter(int base)
292 /* according to the datasheet the key must be send twice! */
293 outb( SIO_UNLOCK_KEY, base);
294 outb( SIO_UNLOCK_KEY, base);
297 static inline void superio_select( int base, int ld)
299 outb(SIO_REG_LDSEL, base);
303 static inline void superio_exit(int base)
305 outb(SIO_LOCK_KEY, base);
308 static inline u16 fan_from_reg(u16 reg)
310 return reg ? (1500000 / reg) : 0;
313 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg)
317 outb(reg, data->addr + ADDR_REG_OFFSET);
318 val = inb(data->addr + DATA_REG_OFFSET);
323 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg)
327 outb(reg++, data->addr + ADDR_REG_OFFSET);
328 val = inb(data->addr + DATA_REG_OFFSET) << 8;
329 outb(reg, data->addr + ADDR_REG_OFFSET);
330 val |= inb(data->addr + DATA_REG_OFFSET);
335 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val)
337 outb(reg, data->addr + ADDR_REG_OFFSET);
338 outb(val, data->addr + DATA_REG_OFFSET);
341 static struct f71882fg_data *f71882fg_update_device(struct device * dev)
343 struct f71882fg_data *data = dev_get_drvdata(dev);
346 mutex_lock(&data->update_lock);
348 /* Update once every 60 seconds */
349 if ( time_after(jiffies, data->last_limits + 60 * HZ ) ||
351 data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH);
352 data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);
354 /* Get High & boundary temps*/
355 for (nr = 0; nr < 3; nr++) {
356 data->temp_ovt[nr] = f71882fg_read8(data,
357 F71882FG_REG_TEMP_OVT(nr));
358 data->temp_high[nr] = f71882fg_read8(data,
359 F71882FG_REG_TEMP_HIGH(nr));
362 /* Have to hardcode hyst*/
363 data->temp_hyst[0] = f71882fg_read8(data,
364 F71882FG_REG_TEMP_HYST1) >> 4;
365 /* Hyst temps 2 & 3 stored in same register */
366 reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
367 data->temp_hyst[1] = reg & 0x0F;
368 data->temp_hyst[2] = reg >> 4;
370 /* Have to hardcode type, because temp1 is special */
371 reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
372 reg2 = f71882fg_read8(data, F71882FG_REG_PECI);
373 if ((reg2 & 0x03) == 0x01)
374 data->temp_type[0] = 6 /* PECI */;
375 else if ((reg2 & 0x03) == 0x02)
376 data->temp_type[0] = 5 /* AMDSI */;
378 data->temp_type[0] = (reg & 0x02) ? 2 : 4;
380 data->temp_type[1] = (reg & 0x04) ? 2 : 4;
381 data->temp_type[2] = (reg & 0x08) ? 2 : 4;
383 data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP);
385 data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP);
387 data->last_limits = jiffies;
390 /* Update every second */
391 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
392 data->temp_status = f71882fg_read8(data,
393 F71882FG_REG_TEMP_STATUS);
394 data->temp_diode_open = f71882fg_read8(data,
395 F71882FG_REG_TEMP_DIODE_OPEN);
396 for (nr = 0; nr < 3; nr++)
397 data->temp[nr] = f71882fg_read8(data,
398 F71882FG_REG_TEMP(nr));
400 data->fan_status = f71882fg_read8(data,
401 F71882FG_REG_FAN_STATUS);
402 for (nr = 0; nr < 4; nr++)
403 data->fan[nr] = f71882fg_read16(data,
404 F71882FG_REG_FAN(nr));
406 data->in_status = f71882fg_read8(data,
407 F71882FG_REG_IN_STATUS);
408 for (nr = 0; nr < 9; nr++)
409 data->in[nr] = f71882fg_read8(data,
410 F71882FG_REG_IN(nr));
412 data->last_updated = jiffies;
416 mutex_unlock(&data->update_lock);
421 /* Sysfs Interface */
422 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
425 struct f71882fg_data *data = f71882fg_update_device(dev);
426 int nr = to_sensor_dev_attr(devattr)->index;
427 int speed = fan_from_reg(data->fan[nr]);
429 if (speed == FAN_MIN_DETECT)
432 return sprintf(buf, "%d\n", speed);
435 static ssize_t show_fan_beep(struct device *dev, struct device_attribute
438 struct f71882fg_data *data = f71882fg_update_device(dev);
439 int nr = to_sensor_dev_attr(devattr)->index;
441 if (data->fan_beep & (1 << nr))
442 return sprintf(buf, "1\n");
444 return sprintf(buf, "0\n");
447 static ssize_t store_fan_beep(struct device *dev, struct device_attribute
448 *devattr, const char *buf, size_t count)
450 struct f71882fg_data *data = dev_get_drvdata(dev);
451 int nr = to_sensor_dev_attr(devattr)->index;
452 int val = simple_strtoul(buf, NULL, 10);
454 mutex_lock(&data->update_lock);
456 data->fan_beep |= 1 << nr;
458 data->fan_beep &= ~(1 << nr);
460 f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep);
461 mutex_unlock(&data->update_lock);
466 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
469 struct f71882fg_data *data = f71882fg_update_device(dev);
470 int nr = to_sensor_dev_attr(devattr)->index;
472 if (data->fan_status & (1 << nr))
473 return sprintf(buf, "1\n");
475 return sprintf(buf, "0\n");
478 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
481 struct f71882fg_data *data = f71882fg_update_device(dev);
482 int nr = to_sensor_dev_attr(devattr)->index;
484 return sprintf(buf, "%d\n", data->in[nr] * 8);
487 static ssize_t show_in_max(struct device *dev, struct device_attribute
490 struct f71882fg_data *data = f71882fg_update_device(dev);
492 return sprintf(buf, "%d\n", data->in1_max * 8);
495 static ssize_t store_in_max(struct device *dev, struct device_attribute
496 *devattr, const char *buf, size_t count)
498 struct f71882fg_data *data = dev_get_drvdata(dev);
499 int val = simple_strtoul(buf, NULL, 10) / 8;
504 mutex_lock(&data->update_lock);
505 f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
507 mutex_unlock(&data->update_lock);
512 static ssize_t show_in_beep(struct device *dev, struct device_attribute
515 struct f71882fg_data *data = f71882fg_update_device(dev);
516 int nr = to_sensor_dev_attr(devattr)->index;
518 if (data->in_beep & (1 << nr))
519 return sprintf(buf, "1\n");
521 return sprintf(buf, "0\n");
524 static ssize_t store_in_beep(struct device *dev, struct device_attribute
525 *devattr, const char *buf, size_t count)
527 struct f71882fg_data *data = dev_get_drvdata(dev);
528 int nr = to_sensor_dev_attr(devattr)->index;
529 int val = simple_strtoul(buf, NULL, 10);
531 mutex_lock(&data->update_lock);
533 data->in_beep |= 1 << nr;
535 data->in_beep &= ~(1 << nr);
537 f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
538 mutex_unlock(&data->update_lock);
543 static ssize_t show_in_alarm(struct device *dev, struct device_attribute
546 struct f71882fg_data *data = f71882fg_update_device(dev);
547 int nr = to_sensor_dev_attr(devattr)->index;
549 if (data->in_status & (1 << nr))
550 return sprintf(buf, "1\n");
552 return sprintf(buf, "0\n");
555 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
558 struct f71882fg_data *data = f71882fg_update_device(dev);
559 int nr = to_sensor_dev_attr(devattr)->index;
561 return sprintf(buf, "%d\n", data->temp[nr] * 1000);
564 static ssize_t show_temp_max(struct device *dev, struct device_attribute
567 struct f71882fg_data *data = f71882fg_update_device(dev);
568 int nr = to_sensor_dev_attr(devattr)->index;
570 return sprintf(buf, "%d\n", data->temp_high[nr] * 1000);
573 static ssize_t store_temp_max(struct device *dev, struct device_attribute
574 *devattr, const char *buf, size_t count)
576 struct f71882fg_data *data = dev_get_drvdata(dev);
577 int nr = to_sensor_dev_attr(devattr)->index;
578 int val = simple_strtoul(buf, NULL, 10) / 1000;
583 mutex_lock(&data->update_lock);
584 f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val);
585 data->temp_high[nr] = val;
586 mutex_unlock(&data->update_lock);
591 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
594 struct f71882fg_data *data = f71882fg_update_device(dev);
595 int nr = to_sensor_dev_attr(devattr)->index;
597 return sprintf(buf, "%d\n",
598 (data->temp_high[nr] - data->temp_hyst[nr]) * 1000);
601 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
602 *devattr, const char *buf, size_t count)
604 struct f71882fg_data *data = dev_get_drvdata(dev);
605 int nr = to_sensor_dev_attr(devattr)->index;
606 int val = simple_strtoul(buf, NULL, 10) / 1000;
609 mutex_lock(&data->update_lock);
611 /* convert abs to relative and check */
612 val = data->temp_high[nr] - val;
613 if (val < 0 || val > 15) {
615 goto store_temp_max_hyst_exit;
618 data->temp_hyst[nr] = val;
620 /* convert value to register contents */
626 val = val | (data->temp_hyst[2] << 4);
629 val = data->temp_hyst[1] | (val << 4);
633 f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 :
634 F71882FG_REG_TEMP_HYST1, val);
636 store_temp_max_hyst_exit:
637 mutex_unlock(&data->update_lock);
641 static ssize_t show_temp_crit(struct device *dev, struct device_attribute
644 struct f71882fg_data *data = f71882fg_update_device(dev);
645 int nr = to_sensor_dev_attr(devattr)->index;
647 return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000);
650 static ssize_t store_temp_crit(struct device *dev, struct device_attribute
651 *devattr, const char *buf, size_t count)
653 struct f71882fg_data *data = dev_get_drvdata(dev);
654 int nr = to_sensor_dev_attr(devattr)->index;
655 int val = simple_strtoul(buf, NULL, 10) / 1000;
660 mutex_lock(&data->update_lock);
661 f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val);
662 data->temp_ovt[nr] = val;
663 mutex_unlock(&data->update_lock);
668 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
671 struct f71882fg_data *data = f71882fg_update_device(dev);
672 int nr = to_sensor_dev_attr(devattr)->index;
674 return sprintf(buf, "%d\n",
675 (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000);
678 static ssize_t show_temp_type(struct device *dev, struct device_attribute
681 struct f71882fg_data *data = f71882fg_update_device(dev);
682 int nr = to_sensor_dev_attr(devattr)->index;
684 return sprintf(buf, "%d\n", data->temp_type[nr]);
687 static ssize_t show_temp_beep(struct device *dev, struct device_attribute
690 struct f71882fg_data *data = f71882fg_update_device(dev);
691 int nr = to_sensor_dev_attr(devattr)->index;
693 if (data->temp_beep & (1 << (nr + 1)))
694 return sprintf(buf, "1\n");
696 return sprintf(buf, "0\n");
699 static ssize_t store_temp_beep(struct device *dev, struct device_attribute
700 *devattr, const char *buf, size_t count)
702 struct f71882fg_data *data = dev_get_drvdata(dev);
703 int nr = to_sensor_dev_attr(devattr)->index;
704 int val = simple_strtoul(buf, NULL, 10);
706 mutex_lock(&data->update_lock);
708 data->temp_beep |= 1 << (nr + 1);
710 data->temp_beep &= ~(1 << (nr + 1));
712 f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep);
713 mutex_unlock(&data->update_lock);
718 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
721 struct f71882fg_data *data = f71882fg_update_device(dev);
722 int nr = to_sensor_dev_attr(devattr)->index;
724 if (data->temp_status & (1 << (nr + 1)))
725 return sprintf(buf, "1\n");
727 return sprintf(buf, "0\n");
730 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
733 struct f71882fg_data *data = f71882fg_update_device(dev);
734 int nr = to_sensor_dev_attr(devattr)->index;
736 if (data->temp_diode_open & (1 << (nr + 1)))
737 return sprintf(buf, "1\n");
739 return sprintf(buf, "0\n");
742 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
745 return sprintf(buf, DRVNAME "\n");
749 static int __devinit f71882fg_probe(struct platform_device * pdev)
751 struct f71882fg_data *data;
755 if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL)))
758 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
759 mutex_init(&data->update_lock);
760 platform_set_drvdata(pdev, data);
762 /* Register sysfs interface files */
763 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) {
764 err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]);
766 goto exit_unregister_sysfs;
769 start_reg = f71882fg_read8(data, F71882FG_REG_START);
770 if (start_reg & 0x01) {
771 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) {
772 err = device_create_file(&pdev->dev,
773 &f71882fg_in_temp_attr[i].dev_attr);
775 goto exit_unregister_sysfs;
779 if (start_reg & 0x02) {
780 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) {
781 err = device_create_file(&pdev->dev,
782 &f71882fg_fan_attr[i].dev_attr);
784 goto exit_unregister_sysfs;
788 data->hwmon_dev = hwmon_device_register(&pdev->dev);
789 if (IS_ERR(data->hwmon_dev)) {
790 err = PTR_ERR(data->hwmon_dev);
791 goto exit_unregister_sysfs;
796 exit_unregister_sysfs:
797 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
798 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
800 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
801 device_remove_file(&pdev->dev,
802 &f71882fg_in_temp_attr[i].dev_attr);
804 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
805 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
812 static int __devexit f71882fg_remove(struct platform_device *pdev)
815 struct f71882fg_data *data = platform_get_drvdata(pdev);
817 platform_set_drvdata(pdev, NULL);
818 hwmon_device_unregister(data->hwmon_dev);
820 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
821 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
823 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
824 device_remove_file(&pdev->dev,
825 &f71882fg_in_temp_attr[i].dev_attr);
827 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
828 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
835 static int __init f71882fg_find(int sioaddr, unsigned short *address)
840 struct f71882fg_data data;
842 superio_enter(sioaddr);
844 devid = superio_inw(sioaddr, SIO_REG_MANID);
845 if (devid != SIO_FINTEK_ID) {
846 printk(KERN_INFO DRVNAME ": Not a Fintek device\n");
850 devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
851 if (devid != SIO_F71882_ID) {
852 printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n");
856 superio_select(sioaddr, SIO_F71882FG_LD_HWM);
857 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
858 printk(KERN_WARNING DRVNAME ": Device not activated\n");
862 *address = superio_inw(sioaddr, SIO_REG_ADDR);
865 printk(KERN_WARNING DRVNAME ": Base address not set\n");
868 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */
870 data.addr = *address;
871 start_reg = f71882fg_read8(&data, F71882FG_REG_START);
872 if (!(start_reg & 0x03)) {
873 printk(KERN_WARNING DRVNAME
874 ": Hardware monitoring not activated\n");
879 printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n",
880 (unsigned int)*address,
881 (int)superio_inb(sioaddr, SIO_REG_DEVREV));
883 superio_exit(sioaddr);
887 static int __init f71882fg_device_add(unsigned short address)
889 struct resource res = {
891 .end = address + REGION_LENGTH - 1,
892 .flags = IORESOURCE_IO,
896 f71882fg_pdev = platform_device_alloc(DRVNAME, address);
900 res.name = f71882fg_pdev->name;
901 err = platform_device_add_resources(f71882fg_pdev, &res, 1);
903 printk(KERN_ERR DRVNAME ": Device resource addition failed\n");
904 goto exit_device_put;
907 err = platform_device_add(f71882fg_pdev);
909 printk(KERN_ERR DRVNAME ": Device addition failed\n");
910 goto exit_device_put;
916 platform_device_put(f71882fg_pdev);
921 static int __init f71882fg_init(void)
924 unsigned short address;
926 if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address))
929 if ((err = platform_driver_register(&f71882fg_driver)))
932 if ((err = f71882fg_device_add(address)))
938 platform_driver_unregister(&f71882fg_driver);
943 static void __exit f71882fg_exit(void)
945 platform_device_unregister(f71882fg_pdev);
946 platform_driver_unregister(&f71882fg_driver);
949 MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver");
950 MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)");
951 MODULE_LICENSE("GPL");
953 module_init(f71882fg_init);
954 module_exit(f71882fg_exit);