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 struct f71882fg_data {
92 struct device *hwmon_dev;
94 struct mutex update_lock;
95 char valid; /* !=0 if following fields are valid */
96 unsigned long last_updated; /* In jiffies */
97 unsigned long last_limits; /* In jiffies */
118 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
120 static ssize_t show_in_max(struct device *dev, struct device_attribute
121 *devattr, char *buf);
122 static ssize_t store_in_max(struct device *dev, struct device_attribute
123 *devattr, const char *buf, size_t count);
124 static ssize_t show_in_beep(struct device *dev, struct device_attribute
125 *devattr, char *buf);
126 static ssize_t store_in_beep(struct device *dev, struct device_attribute
127 *devattr, const char *buf, size_t count);
128 static ssize_t show_in_alarm(struct device *dev, struct device_attribute
129 *devattr, char *buf);
131 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
133 static ssize_t show_fan_beep(struct device *dev, struct device_attribute
134 *devattr, char *buf);
135 static ssize_t store_fan_beep(struct device *dev, struct device_attribute
136 *devattr, const char *buf, size_t count);
137 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
138 *devattr, char *buf);
140 static ssize_t show_temp(struct device *dev, struct device_attribute
141 *devattr, char *buf);
142 static ssize_t show_temp_max(struct device *dev, struct device_attribute
143 *devattr, char *buf);
144 static ssize_t store_temp_max(struct device *dev, struct device_attribute
145 *devattr, const char *buf, size_t count);
146 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
147 *devattr, char *buf);
148 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
149 *devattr, const char *buf, size_t count);
150 static ssize_t show_temp_crit(struct device *dev, struct device_attribute
151 *devattr, char *buf);
152 static ssize_t store_temp_crit(struct device *dev, struct device_attribute
153 *devattr, const char *buf, size_t count);
154 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
155 *devattr, char *buf);
156 static ssize_t show_temp_type(struct device *dev, struct device_attribute
157 *devattr, char *buf);
158 static ssize_t show_temp_beep(struct device *dev, struct device_attribute
159 *devattr, char *buf);
160 static ssize_t store_temp_beep(struct device *dev, struct device_attribute
161 *devattr, const char *buf, size_t count);
162 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
163 *devattr, char *buf);
164 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
165 *devattr, char *buf);
167 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
170 static int __devinit f71882fg_probe(struct platform_device * pdev);
171 static int __devexit f71882fg_remove(struct platform_device *pdev);
172 static int __init f71882fg_init(void);
173 static int __init f71882fg_find(int sioaddr, unsigned short *address);
174 static int __init f71882fg_device_add(unsigned short address);
175 static void __exit f71882fg_exit(void);
177 static struct platform_driver f71882fg_driver = {
179 .owner = THIS_MODULE,
182 .probe = f71882fg_probe,
183 .remove = __devexit_p(f71882fg_remove),
186 static struct device_attribute f71882fg_dev_attr[] =
188 __ATTR( name, S_IRUGO, show_name, NULL ),
191 static struct sensor_device_attribute_2 f71882fg_in_temp_attr[] = {
192 SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
193 SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
194 SENSOR_ATTR_2(in1_max, S_IRUGO|S_IWUSR, show_in_max, store_in_max,
196 SENSOR_ATTR_2(in1_beep, S_IRUGO|S_IWUSR, show_in_beep, store_in_beep,
198 SENSOR_ATTR_2(in1_alarm, S_IRUGO, show_in_alarm, NULL, 0, 1),
199 SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
200 SENSOR_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 0, 3),
201 SENSOR_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 0, 4),
202 SENSOR_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 0, 5),
203 SENSOR_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 0, 6),
204 SENSOR_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 0, 7),
205 SENSOR_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 0, 8),
206 SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
207 SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
208 store_temp_max, 0, 0),
209 SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
210 store_temp_max_hyst, 0, 0),
211 SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
212 store_temp_crit, 0, 0),
213 SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
215 SENSOR_ATTR_2(temp1_type, S_IRUGO, show_temp_type, NULL, 0, 0),
216 SENSOR_ATTR_2(temp1_beep, S_IRUGO|S_IWUSR, show_temp_beep,
217 store_temp_beep, 0, 0),
218 SENSOR_ATTR_2(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 0),
219 SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
220 SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
221 SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
222 store_temp_max, 0, 1),
223 SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
224 store_temp_max_hyst, 0, 1),
225 SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
226 store_temp_crit, 0, 1),
227 SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
229 SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 1),
230 SENSOR_ATTR_2(temp2_beep, S_IRUGO|S_IWUSR, show_temp_beep,
231 store_temp_beep, 0, 1),
232 SENSOR_ATTR_2(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
233 SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
234 SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
235 SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
236 store_temp_max, 0, 2),
237 SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
238 store_temp_max_hyst, 0, 2),
239 SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
240 store_temp_crit, 0, 2),
241 SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
243 SENSOR_ATTR_2(temp3_type, S_IRUGO, show_temp_type, NULL, 0, 2),
244 SENSOR_ATTR_2(temp3_beep, S_IRUGO|S_IWUSR, show_temp_beep,
245 store_temp_beep, 0, 2),
246 SENSOR_ATTR_2(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
247 SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
250 static struct sensor_device_attribute_2 f71882fg_fan_attr[] = {
251 SENSOR_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0),
252 SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
253 store_fan_beep, 0, 0),
254 SENSOR_ATTR_2(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 0),
255 SENSOR_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 0, 1),
256 SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
257 store_fan_beep, 0, 1),
258 SENSOR_ATTR_2(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 1),
259 SENSOR_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 0, 2),
260 SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
261 store_fan_beep, 0, 2),
262 SENSOR_ATTR_2(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 2),
263 SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
264 SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
265 store_fan_beep, 0, 3),
266 SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
270 /* Super I/O functions */
271 static inline int superio_inb(int base, int reg)
274 return inb(base + 1);
277 static int superio_inw(int base, int reg)
281 val = inb(base + 1) << 8;
283 val |= inb(base + 1);
287 static inline void superio_enter(int base)
289 /* according to the datasheet the key must be send twice! */
290 outb( SIO_UNLOCK_KEY, base);
291 outb( SIO_UNLOCK_KEY, base);
294 static inline void superio_select( int base, int ld)
296 outb(SIO_REG_LDSEL, base);
300 static inline void superio_exit(int base)
302 outb(SIO_LOCK_KEY, base);
305 static inline u16 fan_from_reg(u16 reg)
307 return reg ? (1500000 / reg) : 0;
310 static u8 f71882fg_read8(struct f71882fg_data *data, u8 reg)
314 outb(reg, data->addr + ADDR_REG_OFFSET);
315 val = inb(data->addr + DATA_REG_OFFSET);
320 static u16 f71882fg_read16(struct f71882fg_data *data, u8 reg)
324 outb(reg++, data->addr + ADDR_REG_OFFSET);
325 val = inb(data->addr + DATA_REG_OFFSET) << 8;
326 outb(reg, data->addr + ADDR_REG_OFFSET);
327 val |= inb(data->addr + DATA_REG_OFFSET);
332 static void f71882fg_write8(struct f71882fg_data *data, u8 reg, u8 val)
334 outb(reg, data->addr + ADDR_REG_OFFSET);
335 outb(val, data->addr + DATA_REG_OFFSET);
338 static struct f71882fg_data *f71882fg_update_device(struct device * dev)
340 struct f71882fg_data *data = dev_get_drvdata(dev);
343 mutex_lock(&data->update_lock);
345 /* Update once every 60 seconds */
346 if ( time_after(jiffies, data->last_limits + 60 * HZ ) ||
348 data->in1_max = f71882fg_read8(data, F71882FG_REG_IN1_HIGH);
349 data->in_beep = f71882fg_read8(data, F71882FG_REG_IN_BEEP);
351 /* Get High & boundary temps*/
352 for (nr = 0; nr < 3; nr++) {
353 data->temp_ovt[nr] = f71882fg_read8(data,
354 F71882FG_REG_TEMP_OVT(nr));
355 data->temp_high[nr] = f71882fg_read8(data,
356 F71882FG_REG_TEMP_HIGH(nr));
359 /* Have to hardcode hyst*/
360 data->temp_hyst[0] = f71882fg_read8(data,
361 F71882FG_REG_TEMP_HYST1) >> 4;
362 /* Hyst temps 2 & 3 stored in same register */
363 reg = f71882fg_read8(data, F71882FG_REG_TEMP_HYST23);
364 data->temp_hyst[1] = reg & 0x0F;
365 data->temp_hyst[2] = reg >> 4;
367 /* Have to hardcode type, because temp1 is special */
368 reg = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
369 reg2 = f71882fg_read8(data, F71882FG_REG_PECI);
370 if ((reg2 & 0x03) == 0x01)
371 data->temp_type[0] = 6 /* PECI */;
372 else if ((reg2 & 0x03) == 0x02)
373 data->temp_type[0] = 5 /* AMDSI */;
375 data->temp_type[0] = (reg & 0x02) ? 2 : 4;
377 data->temp_type[1] = (reg & 0x04) ? 2 : 4;
378 data->temp_type[2] = (reg & 0x08) ? 2 : 4;
380 data->temp_beep = f71882fg_read8(data, F71882FG_REG_TEMP_BEEP);
382 data->fan_beep = f71882fg_read8(data, F71882FG_REG_FAN_BEEP);
384 data->last_limits = jiffies;
387 /* Update every second */
388 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
389 data->temp_status = f71882fg_read8(data,
390 F71882FG_REG_TEMP_STATUS);
391 data->temp_diode_open = f71882fg_read8(data,
392 F71882FG_REG_TEMP_DIODE_OPEN);
393 for (nr = 0; nr < 3; nr++)
394 data->temp[nr] = f71882fg_read8(data,
395 F71882FG_REG_TEMP(nr));
397 data->fan_status = f71882fg_read8(data,
398 F71882FG_REG_FAN_STATUS);
399 for (nr = 0; nr < 4; nr++)
400 data->fan[nr] = f71882fg_read16(data,
401 F71882FG_REG_FAN(nr));
403 data->in_status = f71882fg_read8(data,
404 F71882FG_REG_IN_STATUS);
405 for (nr = 0; nr < 9; nr++)
406 data->in[nr] = f71882fg_read8(data,
407 F71882FG_REG_IN(nr));
409 data->last_updated = jiffies;
413 mutex_unlock(&data->update_lock);
418 /* Sysfs Interface */
419 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
422 struct f71882fg_data *data = f71882fg_update_device(dev);
423 int nr = to_sensor_dev_attr_2(devattr)->index;
424 int speed = fan_from_reg(data->fan[nr]);
426 if (speed == FAN_MIN_DETECT)
429 return sprintf(buf, "%d\n", speed);
432 static ssize_t show_fan_beep(struct device *dev, struct device_attribute
435 struct f71882fg_data *data = f71882fg_update_device(dev);
436 int nr = to_sensor_dev_attr_2(devattr)->index;
438 if (data->fan_beep & (1 << nr))
439 return sprintf(buf, "1\n");
441 return sprintf(buf, "0\n");
444 static ssize_t store_fan_beep(struct device *dev, struct device_attribute
445 *devattr, const char *buf, size_t count)
447 struct f71882fg_data *data = dev_get_drvdata(dev);
448 int nr = to_sensor_dev_attr_2(devattr)->index;
449 int val = simple_strtoul(buf, NULL, 10);
451 mutex_lock(&data->update_lock);
453 data->fan_beep |= 1 << nr;
455 data->fan_beep &= ~(1 << nr);
457 f71882fg_write8(data, F71882FG_REG_FAN_BEEP, data->fan_beep);
458 mutex_unlock(&data->update_lock);
463 static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
466 struct f71882fg_data *data = f71882fg_update_device(dev);
467 int nr = to_sensor_dev_attr_2(devattr)->index;
469 if (data->fan_status & (1 << nr))
470 return sprintf(buf, "1\n");
472 return sprintf(buf, "0\n");
475 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
478 struct f71882fg_data *data = f71882fg_update_device(dev);
479 int nr = to_sensor_dev_attr_2(devattr)->index;
481 return sprintf(buf, "%d\n", data->in[nr] * 8);
484 static ssize_t show_in_max(struct device *dev, struct device_attribute
487 struct f71882fg_data *data = f71882fg_update_device(dev);
489 return sprintf(buf, "%d\n", data->in1_max * 8);
492 static ssize_t store_in_max(struct device *dev, struct device_attribute
493 *devattr, const char *buf, size_t count)
495 struct f71882fg_data *data = dev_get_drvdata(dev);
496 int val = simple_strtoul(buf, NULL, 10) / 8;
501 mutex_lock(&data->update_lock);
502 f71882fg_write8(data, F71882FG_REG_IN1_HIGH, val);
504 mutex_unlock(&data->update_lock);
509 static ssize_t show_in_beep(struct device *dev, struct device_attribute
512 struct f71882fg_data *data = f71882fg_update_device(dev);
513 int nr = to_sensor_dev_attr_2(devattr)->index;
515 if (data->in_beep & (1 << nr))
516 return sprintf(buf, "1\n");
518 return sprintf(buf, "0\n");
521 static ssize_t store_in_beep(struct device *dev, struct device_attribute
522 *devattr, const char *buf, size_t count)
524 struct f71882fg_data *data = dev_get_drvdata(dev);
525 int nr = to_sensor_dev_attr_2(devattr)->index;
526 int val = simple_strtoul(buf, NULL, 10);
528 mutex_lock(&data->update_lock);
530 data->in_beep |= 1 << nr;
532 data->in_beep &= ~(1 << nr);
534 f71882fg_write8(data, F71882FG_REG_IN_BEEP, data->in_beep);
535 mutex_unlock(&data->update_lock);
540 static ssize_t show_in_alarm(struct device *dev, struct device_attribute
543 struct f71882fg_data *data = f71882fg_update_device(dev);
544 int nr = to_sensor_dev_attr_2(devattr)->index;
546 if (data->in_status & (1 << nr))
547 return sprintf(buf, "1\n");
549 return sprintf(buf, "0\n");
552 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
555 struct f71882fg_data *data = f71882fg_update_device(dev);
556 int nr = to_sensor_dev_attr_2(devattr)->index;
558 return sprintf(buf, "%d\n", data->temp[nr] * 1000);
561 static ssize_t show_temp_max(struct device *dev, struct device_attribute
564 struct f71882fg_data *data = f71882fg_update_device(dev);
565 int nr = to_sensor_dev_attr_2(devattr)->index;
567 return sprintf(buf, "%d\n", data->temp_high[nr] * 1000);
570 static ssize_t store_temp_max(struct device *dev, struct device_attribute
571 *devattr, const char *buf, size_t count)
573 struct f71882fg_data *data = dev_get_drvdata(dev);
574 int nr = to_sensor_dev_attr_2(devattr)->index;
575 int val = simple_strtoul(buf, NULL, 10) / 1000;
580 mutex_lock(&data->update_lock);
581 f71882fg_write8(data, F71882FG_REG_TEMP_HIGH(nr), val);
582 data->temp_high[nr] = val;
583 mutex_unlock(&data->update_lock);
588 static ssize_t show_temp_max_hyst(struct device *dev, struct device_attribute
591 struct f71882fg_data *data = f71882fg_update_device(dev);
592 int nr = to_sensor_dev_attr_2(devattr)->index;
594 return sprintf(buf, "%d\n",
595 (data->temp_high[nr] - data->temp_hyst[nr]) * 1000);
598 static ssize_t store_temp_max_hyst(struct device *dev, struct device_attribute
599 *devattr, const char *buf, size_t count)
601 struct f71882fg_data *data = dev_get_drvdata(dev);
602 int nr = to_sensor_dev_attr_2(devattr)->index;
603 int val = simple_strtoul(buf, NULL, 10) / 1000;
606 mutex_lock(&data->update_lock);
608 /* convert abs to relative and check */
609 val = data->temp_high[nr] - val;
610 if (val < 0 || val > 15) {
612 goto store_temp_max_hyst_exit;
615 data->temp_hyst[nr] = val;
617 /* convert value to register contents */
623 val = val | (data->temp_hyst[2] << 4);
626 val = data->temp_hyst[1] | (val << 4);
630 f71882fg_write8(data, nr ? F71882FG_REG_TEMP_HYST23 :
631 F71882FG_REG_TEMP_HYST1, val);
633 store_temp_max_hyst_exit:
634 mutex_unlock(&data->update_lock);
638 static ssize_t show_temp_crit(struct device *dev, struct device_attribute
641 struct f71882fg_data *data = f71882fg_update_device(dev);
642 int nr = to_sensor_dev_attr_2(devattr)->index;
644 return sprintf(buf, "%d\n", data->temp_ovt[nr] * 1000);
647 static ssize_t store_temp_crit(struct device *dev, struct device_attribute
648 *devattr, const char *buf, size_t count)
650 struct f71882fg_data *data = dev_get_drvdata(dev);
651 int nr = to_sensor_dev_attr_2(devattr)->index;
652 int val = simple_strtoul(buf, NULL, 10) / 1000;
657 mutex_lock(&data->update_lock);
658 f71882fg_write8(data, F71882FG_REG_TEMP_OVT(nr), val);
659 data->temp_ovt[nr] = val;
660 mutex_unlock(&data->update_lock);
665 static ssize_t show_temp_crit_hyst(struct device *dev, struct device_attribute
668 struct f71882fg_data *data = f71882fg_update_device(dev);
669 int nr = to_sensor_dev_attr_2(devattr)->index;
671 return sprintf(buf, "%d\n",
672 (data->temp_ovt[nr] - data->temp_hyst[nr]) * 1000);
675 static ssize_t show_temp_type(struct device *dev, struct device_attribute
678 struct f71882fg_data *data = f71882fg_update_device(dev);
679 int nr = to_sensor_dev_attr_2(devattr)->index;
681 return sprintf(buf, "%d\n", data->temp_type[nr]);
684 static ssize_t show_temp_beep(struct device *dev, struct device_attribute
687 struct f71882fg_data *data = f71882fg_update_device(dev);
688 int nr = to_sensor_dev_attr_2(devattr)->index;
690 if (data->temp_beep & (1 << (nr + 1)))
691 return sprintf(buf, "1\n");
693 return sprintf(buf, "0\n");
696 static ssize_t store_temp_beep(struct device *dev, struct device_attribute
697 *devattr, const char *buf, size_t count)
699 struct f71882fg_data *data = dev_get_drvdata(dev);
700 int nr = to_sensor_dev_attr_2(devattr)->index;
701 int val = simple_strtoul(buf, NULL, 10);
703 mutex_lock(&data->update_lock);
705 data->temp_beep |= 1 << (nr + 1);
707 data->temp_beep &= ~(1 << (nr + 1));
709 f71882fg_write8(data, F71882FG_REG_TEMP_BEEP, data->temp_beep);
710 mutex_unlock(&data->update_lock);
715 static ssize_t show_temp_alarm(struct device *dev, struct device_attribute
718 struct f71882fg_data *data = f71882fg_update_device(dev);
719 int nr = to_sensor_dev_attr_2(devattr)->index;
721 if (data->temp_status & (1 << (nr + 1)))
722 return sprintf(buf, "1\n");
724 return sprintf(buf, "0\n");
727 static ssize_t show_temp_fault(struct device *dev, struct device_attribute
730 struct f71882fg_data *data = f71882fg_update_device(dev);
731 int nr = to_sensor_dev_attr_2(devattr)->index;
733 if (data->temp_diode_open & (1 << (nr + 1)))
734 return sprintf(buf, "1\n");
736 return sprintf(buf, "0\n");
739 static ssize_t show_name(struct device *dev, struct device_attribute *devattr,
742 return sprintf(buf, DRVNAME "\n");
746 static int __devinit f71882fg_probe(struct platform_device * pdev)
748 struct f71882fg_data *data;
752 if (!(data = kzalloc(sizeof(struct f71882fg_data), GFP_KERNEL)))
755 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
756 mutex_init(&data->update_lock);
757 platform_set_drvdata(pdev, data);
759 /* Register sysfs interface files */
760 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++) {
761 err = device_create_file(&pdev->dev, &f71882fg_dev_attr[i]);
763 goto exit_unregister_sysfs;
766 start_reg = f71882fg_read8(data, F71882FG_REG_START);
767 if (start_reg & 0x01) {
768 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++) {
769 err = device_create_file(&pdev->dev,
770 &f71882fg_in_temp_attr[i].dev_attr);
772 goto exit_unregister_sysfs;
776 if (start_reg & 0x02) {
777 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++) {
778 err = device_create_file(&pdev->dev,
779 &f71882fg_fan_attr[i].dev_attr);
781 goto exit_unregister_sysfs;
785 data->hwmon_dev = hwmon_device_register(&pdev->dev);
786 if (IS_ERR(data->hwmon_dev)) {
787 err = PTR_ERR(data->hwmon_dev);
788 goto exit_unregister_sysfs;
793 exit_unregister_sysfs:
794 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
795 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
797 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
798 device_remove_file(&pdev->dev,
799 &f71882fg_in_temp_attr[i].dev_attr);
801 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
802 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
809 static int __devexit f71882fg_remove(struct platform_device *pdev)
812 struct f71882fg_data *data = platform_get_drvdata(pdev);
814 platform_set_drvdata(pdev, NULL);
815 hwmon_device_unregister(data->hwmon_dev);
817 for (i = 0; i < ARRAY_SIZE(f71882fg_dev_attr); i++)
818 device_remove_file(&pdev->dev, &f71882fg_dev_attr[i]);
820 for (i = 0; i < ARRAY_SIZE(f71882fg_in_temp_attr); i++)
821 device_remove_file(&pdev->dev,
822 &f71882fg_in_temp_attr[i].dev_attr);
824 for (i = 0; i < ARRAY_SIZE(f71882fg_fan_attr); i++)
825 device_remove_file(&pdev->dev, &f71882fg_fan_attr[i].dev_attr);
832 static int __init f71882fg_find(int sioaddr, unsigned short *address)
837 struct f71882fg_data data;
839 superio_enter(sioaddr);
841 devid = superio_inw(sioaddr, SIO_REG_MANID);
842 if (devid != SIO_FINTEK_ID) {
843 printk(KERN_INFO DRVNAME ": Not a Fintek device\n");
847 devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
848 if (devid != SIO_F71882_ID) {
849 printk(KERN_INFO DRVNAME ": Unsupported Fintek device\n");
853 superio_select(sioaddr, SIO_F71882FG_LD_HWM);
854 if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
855 printk(KERN_WARNING DRVNAME ": Device not activated\n");
859 *address = superio_inw(sioaddr, SIO_REG_ADDR);
862 printk(KERN_WARNING DRVNAME ": Base address not set\n");
865 *address &= ~(REGION_LENGTH - 1); /* Ignore 3 LSB */
867 data.addr = *address;
868 start_reg = f71882fg_read8(&data, F71882FG_REG_START);
869 if (!(start_reg & 0x03)) {
870 printk(KERN_WARNING DRVNAME
871 ": Hardware monitoring not activated\n");
876 printk(KERN_INFO DRVNAME ": Found F71882FG chip at %#x, revision %d\n",
877 (unsigned int)*address,
878 (int)superio_inb(sioaddr, SIO_REG_DEVREV));
880 superio_exit(sioaddr);
884 static int __init f71882fg_device_add(unsigned short address)
886 struct resource res = {
888 .end = address + REGION_LENGTH - 1,
889 .flags = IORESOURCE_IO,
893 f71882fg_pdev = platform_device_alloc(DRVNAME, address);
897 res.name = f71882fg_pdev->name;
898 err = platform_device_add_resources(f71882fg_pdev, &res, 1);
900 printk(KERN_ERR DRVNAME ": Device resource addition failed\n");
901 goto exit_device_put;
904 err = platform_device_add(f71882fg_pdev);
906 printk(KERN_ERR DRVNAME ": Device addition failed\n");
907 goto exit_device_put;
913 platform_device_put(f71882fg_pdev);
918 static int __init f71882fg_init(void)
921 unsigned short address;
923 if (f71882fg_find(0x2e, &address) && f71882fg_find(0x4e, &address))
926 if ((err = platform_driver_register(&f71882fg_driver)))
929 if ((err = f71882fg_device_add(address)))
935 platform_driver_unregister(&f71882fg_driver);
940 static void __exit f71882fg_exit(void)
942 platform_device_unregister(f71882fg_pdev);
943 platform_driver_unregister(&f71882fg_driver);
946 MODULE_DESCRIPTION("F71882FG Hardware Monitoring Driver");
947 MODULE_AUTHOR("Hans Edgington (hans@edgington.nl)");
948 MODULE_LICENSE("GPL");
950 module_init(f71882fg_init);
951 module_exit(f71882fg_exit);