2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org>
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * Supports the following chips:
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
36 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/slab.h>
41 #include <linux/jiffies.h>
42 #include <linux/platform_device.h>
43 #include <linux/hwmon.h>
44 #include <linux/hwmon-sysfs.h>
45 #include <linux/hwmon-vid.h>
46 #include <linux/err.h>
47 #include <linux/mutex.h>
48 #include <linux/acpi.h>
52 static struct platform_device *pdev;
53 static unsigned short extra_isa[3];
57 module_param(init, int, 0);
58 MODULE_PARM_DESC(init,
59 "Chip initialization level:\n"
61 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
62 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
63 " 3: Forcibly enable all voltage and temperature channels, including in9");
65 static unsigned short force_id;
66 module_param(force_id, ushort, 0);
67 MODULE_PARM_DESC(force_id, "Override the detected device ID");
70 * Super-I/O registers and operations
73 #define DEV 0x07 /* Register: Logical device select */
74 #define DEVID 0x20 /* Register: Device ID */
75 #define ACT 0x30 /* Register: Device activation */
76 #define BASE 0x60 /* Register: Base address */
78 #define FSCM 0x09 /* Logical device: fans */
79 #define VLM 0x0d /* Logical device: voltages */
80 #define TMS 0x0e /* Logical device: temperatures */
82 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
88 static inline void superio_outb(int sioaddr, int reg, int val)
91 outb(val, sioaddr + 1);
94 static inline int superio_inb(int sioaddr, int reg)
97 return inb(sioaddr + 1);
100 static inline void superio_exit(int sioaddr)
103 outb(0x02, sioaddr + 1);
110 #define PC87360_EXTENT 0x10
111 #define PC87365_REG_BANK 0x09
115 * Fan registers and conversions
118 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
119 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
120 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
121 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
122 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
123 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
125 #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \
126 480000 / ((val) * (div)))
127 #define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \
128 480000 / ((val) * (div)))
129 #define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03))
130 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
132 #define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1)
133 #define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1)
134 #define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1)
136 #define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val))
137 static inline u8 PWM_TO_REG(int val, int inv)
149 * Voltage registers and conversions
152 #define PC87365_REG_IN_CONVRATE 0x07
153 #define PC87365_REG_IN_CONFIG 0x08
154 #define PC87365_REG_IN 0x0B
155 #define PC87365_REG_IN_MIN 0x0D
156 #define PC87365_REG_IN_MAX 0x0C
157 #define PC87365_REG_IN_STATUS 0x0A
158 #define PC87365_REG_IN_ALARMS1 0x00
159 #define PC87365_REG_IN_ALARMS2 0x01
160 #define PC87365_REG_VID 0x06
162 #define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256)
163 #define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \
164 (val) * 256 >= (ref) * 255 ? 255 : \
165 ((val) * 256 + (ref) / 2) / (ref))
168 * Temperature registers and conversions
171 #define PC87365_REG_TEMP_CONFIG 0x08
172 #define PC87365_REG_TEMP 0x0B
173 #define PC87365_REG_TEMP_MIN 0x0D
174 #define PC87365_REG_TEMP_MAX 0x0C
175 #define PC87365_REG_TEMP_CRIT 0x0E
176 #define PC87365_REG_TEMP_STATUS 0x0A
177 #define PC87365_REG_TEMP_ALARMS 0x00
179 #define TEMP_FROM_REG(val) ((val) * 1000)
180 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
181 (val) > 127000 ? 127 : \
182 (val) < 0 ? ((val) - 500) / 1000 : \
183 ((val) + 500) / 1000)
189 struct pc87360_data {
191 struct device *hwmon_dev;
193 struct mutex update_lock;
194 char valid; /* !=0 if following fields are valid */
195 unsigned long last_updated; /* In jiffies */
199 u8 fannr, innr, tempnr;
201 u8 fan[3]; /* Register value */
202 u8 fan_min[3]; /* Register value */
203 u8 fan_status[3]; /* Register value */
204 u8 pwm[3]; /* Register value */
205 u16 fan_conf; /* Configuration register values, combined */
207 u16 in_vref; /* 1 mV/bit */
208 u8 in[14]; /* Register value */
209 u8 in_min[14]; /* Register value */
210 u8 in_max[14]; /* Register value */
211 u8 in_crit[3]; /* Register value */
212 u8 in_status[14]; /* Register value */
213 u16 in_alarms; /* Register values, combined, masked */
214 u8 vid_conf; /* Configuration register value */
216 u8 vid; /* Register value */
218 s8 temp[3]; /* Register value */
219 s8 temp_min[3]; /* Register value */
220 s8 temp_max[3]; /* Register value */
221 s8 temp_crit[3]; /* Register value */
222 u8 temp_status[3]; /* Register value */
223 u8 temp_alarms; /* Register value, masked */
227 * Functions declaration
230 static int pc87360_probe(struct platform_device *pdev);
231 static int pc87360_remove(struct platform_device *pdev);
233 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
235 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
237 static void pc87360_init_device(struct platform_device *pdev,
238 int use_thermistors);
239 static struct pc87360_data *pc87360_update_device(struct device *dev);
245 static struct platform_driver pc87360_driver = {
247 .owner = THIS_MODULE,
250 .probe = pc87360_probe,
251 .remove = pc87360_remove,
258 static ssize_t show_fan_input(struct device *dev,
259 struct device_attribute *devattr, char *buf)
261 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
262 struct pc87360_data *data = pc87360_update_device(dev);
263 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
264 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
266 static ssize_t show_fan_min(struct device *dev,
267 struct device_attribute *devattr, char *buf)
269 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
270 struct pc87360_data *data = pc87360_update_device(dev);
271 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
272 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
274 static ssize_t show_fan_div(struct device *dev,
275 struct device_attribute *devattr, char *buf)
277 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
278 struct pc87360_data *data = pc87360_update_device(dev);
279 return sprintf(buf, "%u\n",
280 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
282 static ssize_t show_fan_status(struct device *dev,
283 struct device_attribute *devattr, char *buf)
285 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
286 struct pc87360_data *data = pc87360_update_device(dev);
287 return sprintf(buf, "%u\n",
288 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
290 static ssize_t set_fan_min(struct device *dev,
291 struct device_attribute *devattr, const char *buf,
294 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
295 struct pc87360_data *data = dev_get_drvdata(dev);
299 err = kstrtol(buf, 10, &fan_min);
303 mutex_lock(&data->update_lock);
304 fan_min = FAN_TO_REG(fan_min,
305 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
307 /* If it wouldn't fit, change clock divisor */
309 && (data->fan_status[attr->index] & 0x60) != 0x60) {
311 data->fan[attr->index] >>= 1;
312 data->fan_status[attr->index] += 0x20;
314 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
315 pc87360_write_value(data, LD_FAN, NO_BANK,
316 PC87360_REG_FAN_MIN(attr->index),
317 data->fan_min[attr->index]);
319 /* Write new divider, preserve alarm bits */
320 pc87360_write_value(data, LD_FAN, NO_BANK,
321 PC87360_REG_FAN_STATUS(attr->index),
322 data->fan_status[attr->index] & 0xF9);
323 mutex_unlock(&data->update_lock);
328 static struct sensor_device_attribute fan_input[] = {
329 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
330 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
331 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
333 static struct sensor_device_attribute fan_status[] = {
334 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
335 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
336 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
338 static struct sensor_device_attribute fan_div[] = {
339 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
340 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
341 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
343 static struct sensor_device_attribute fan_min[] = {
344 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
345 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
346 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
349 #define FAN_UNIT_ATTRS(X) \
350 { &fan_input[X].dev_attr.attr, \
351 &fan_status[X].dev_attr.attr, \
352 &fan_div[X].dev_attr.attr, \
353 &fan_min[X].dev_attr.attr, \
357 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
360 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
361 struct pc87360_data *data = pc87360_update_device(dev);
362 return sprintf(buf, "%u\n",
363 PWM_FROM_REG(data->pwm[attr->index],
364 FAN_CONFIG_INVERT(data->fan_conf,
367 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
368 const char *buf, size_t count)
370 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
371 struct pc87360_data *data = dev_get_drvdata(dev);
375 err = kstrtol(buf, 10, &val);
379 mutex_lock(&data->update_lock);
380 data->pwm[attr->index] = PWM_TO_REG(val,
381 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
382 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
383 data->pwm[attr->index]);
384 mutex_unlock(&data->update_lock);
388 static struct sensor_device_attribute pwm[] = {
389 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
390 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
391 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
394 static struct attribute *pc8736x_fan_attr[][5] = {
400 static const struct attribute_group pc8736x_fan_attr_group[] = {
401 { .attrs = pc8736x_fan_attr[0], },
402 { .attrs = pc8736x_fan_attr[1], },
403 { .attrs = pc8736x_fan_attr[2], },
406 static ssize_t show_in_input(struct device *dev,
407 struct device_attribute *devattr, char *buf)
409 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
410 struct pc87360_data *data = pc87360_update_device(dev);
411 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
414 static ssize_t show_in_min(struct device *dev,
415 struct device_attribute *devattr, char *buf)
417 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
418 struct pc87360_data *data = pc87360_update_device(dev);
419 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
422 static ssize_t show_in_max(struct device *dev,
423 struct device_attribute *devattr, char *buf)
425 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
426 struct pc87360_data *data = pc87360_update_device(dev);
427 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
430 static ssize_t show_in_status(struct device *dev,
431 struct device_attribute *devattr, char *buf)
433 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
434 struct pc87360_data *data = pc87360_update_device(dev);
435 return sprintf(buf, "%u\n", data->in_status[attr->index]);
437 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr,
438 const char *buf, size_t count)
440 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
441 struct pc87360_data *data = dev_get_drvdata(dev);
445 err = kstrtol(buf, 10, &val);
449 mutex_lock(&data->update_lock);
450 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
451 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
452 data->in_min[attr->index]);
453 mutex_unlock(&data->update_lock);
456 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr,
457 const char *buf, size_t count)
459 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
460 struct pc87360_data *data = dev_get_drvdata(dev);
464 err = kstrtol(buf, 10, &val);
468 mutex_lock(&data->update_lock);
469 data->in_max[attr->index] = IN_TO_REG(val,
471 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
472 data->in_max[attr->index]);
473 mutex_unlock(&data->update_lock);
477 static struct sensor_device_attribute in_input[] = {
478 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
479 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
480 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
481 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
482 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
483 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
484 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
485 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
486 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
487 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
488 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
490 static struct sensor_device_attribute in_status[] = {
491 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
492 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
493 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
494 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
495 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
496 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
497 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
498 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
499 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
500 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
501 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
503 static struct sensor_device_attribute in_min[] = {
504 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
505 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
506 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
507 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
508 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
509 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
510 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
511 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
512 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
513 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
514 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
516 static struct sensor_device_attribute in_max[] = {
517 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
518 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
519 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
520 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
521 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
522 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
523 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
524 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
525 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
526 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
527 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
530 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
531 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
532 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
533 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
536 * show_in_min/max_alarm() reads data from the per-channel status
537 * register (sec 11.5.12), not the vin event status registers (sec
538 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
541 static ssize_t show_in_min_alarm(struct device *dev,
542 struct device_attribute *devattr, char *buf)
544 struct pc87360_data *data = pc87360_update_device(dev);
545 unsigned nr = to_sensor_dev_attr(devattr)->index;
547 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
549 static ssize_t show_in_max_alarm(struct device *dev,
550 struct device_attribute *devattr, char *buf)
552 struct pc87360_data *data = pc87360_update_device(dev);
553 unsigned nr = to_sensor_dev_attr(devattr)->index;
555 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
558 static struct sensor_device_attribute in_min_alarm[] = {
559 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
560 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
561 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
562 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
563 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
564 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
565 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
566 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
567 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
568 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
569 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
571 static struct sensor_device_attribute in_max_alarm[] = {
572 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
573 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
574 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
575 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
576 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
577 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
578 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
579 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
580 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
581 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
582 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
585 #define VIN_UNIT_ATTRS(X) \
586 &in_input[X].dev_attr.attr, \
587 &in_status[X].dev_attr.attr, \
588 &in_min[X].dev_attr.attr, \
589 &in_max[X].dev_attr.attr, \
590 &in_min_alarm[X].dev_attr.attr, \
591 &in_max_alarm[X].dev_attr.attr
593 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
596 struct pc87360_data *data = pc87360_update_device(dev);
597 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
599 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
601 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
604 struct pc87360_data *data = dev_get_drvdata(dev);
605 return sprintf(buf, "%u\n", data->vrm);
607 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
608 const char *buf, size_t count)
610 struct pc87360_data *data = dev_get_drvdata(dev);
614 err = kstrtoul(buf, 10, &val);
621 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
623 static ssize_t show_in_alarms(struct device *dev,
624 struct device_attribute *attr, char *buf)
626 struct pc87360_data *data = pc87360_update_device(dev);
627 return sprintf(buf, "%u\n", data->in_alarms);
629 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
631 static struct attribute *pc8736x_vin_attr_array[] = {
643 &dev_attr_cpu0_vid.attr,
645 &dev_attr_alarms_in.attr,
648 static const struct attribute_group pc8736x_vin_group = {
649 .attrs = pc8736x_vin_attr_array,
652 static ssize_t show_therm_input(struct device *dev,
653 struct device_attribute *devattr, char *buf)
655 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
656 struct pc87360_data *data = pc87360_update_device(dev);
657 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
660 static ssize_t show_therm_min(struct device *dev,
661 struct device_attribute *devattr, char *buf)
663 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
664 struct pc87360_data *data = pc87360_update_device(dev);
665 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
668 static ssize_t show_therm_max(struct device *dev,
669 struct device_attribute *devattr, char *buf)
671 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
672 struct pc87360_data *data = pc87360_update_device(dev);
673 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
676 static ssize_t show_therm_crit(struct device *dev,
677 struct device_attribute *devattr, char *buf)
679 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
680 struct pc87360_data *data = pc87360_update_device(dev);
681 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
684 static ssize_t show_therm_status(struct device *dev,
685 struct device_attribute *devattr, char *buf)
687 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
688 struct pc87360_data *data = pc87360_update_device(dev);
689 return sprintf(buf, "%u\n", data->in_status[attr->index]);
692 static ssize_t set_therm_min(struct device *dev,
693 struct device_attribute *devattr,
694 const char *buf, size_t count)
696 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
697 struct pc87360_data *data = dev_get_drvdata(dev);
701 err = kstrtol(buf, 10, &val);
705 mutex_lock(&data->update_lock);
706 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
707 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
708 data->in_min[attr->index]);
709 mutex_unlock(&data->update_lock);
713 static ssize_t set_therm_max(struct device *dev,
714 struct device_attribute *devattr,
715 const char *buf, size_t count)
717 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
718 struct pc87360_data *data = dev_get_drvdata(dev);
722 err = kstrtol(buf, 10, &val);
726 mutex_lock(&data->update_lock);
727 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
728 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
729 data->in_max[attr->index]);
730 mutex_unlock(&data->update_lock);
733 static ssize_t set_therm_crit(struct device *dev,
734 struct device_attribute *devattr,
735 const char *buf, size_t count)
737 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
738 struct pc87360_data *data = dev_get_drvdata(dev);
742 err = kstrtol(buf, 10, &val);
746 mutex_lock(&data->update_lock);
747 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
748 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
749 data->in_crit[attr->index-11]);
750 mutex_unlock(&data->update_lock);
755 * the +11 term below reflects the fact that VLM units 11,12,13 are
756 * used in the chip to measure voltage across the thermistors
758 static struct sensor_device_attribute therm_input[] = {
759 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11),
760 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11),
761 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11),
763 static struct sensor_device_attribute therm_status[] = {
764 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11),
765 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11),
766 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11),
768 static struct sensor_device_attribute therm_min[] = {
769 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
770 show_therm_min, set_therm_min, 0 + 11),
771 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
772 show_therm_min, set_therm_min, 1 + 11),
773 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
774 show_therm_min, set_therm_min, 2 + 11),
776 static struct sensor_device_attribute therm_max[] = {
777 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
778 show_therm_max, set_therm_max, 0 + 11),
779 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
780 show_therm_max, set_therm_max, 1 + 11),
781 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
782 show_therm_max, set_therm_max, 2 + 11),
784 static struct sensor_device_attribute therm_crit[] = {
785 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
786 show_therm_crit, set_therm_crit, 0 + 11),
787 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
788 show_therm_crit, set_therm_crit, 1 + 11),
789 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
790 show_therm_crit, set_therm_crit, 2 + 11),
794 * show_therm_min/max_alarm() reads data from the per-channel voltage
795 * status register (sec 11.5.12)
798 static ssize_t show_therm_min_alarm(struct device *dev,
799 struct device_attribute *devattr, char *buf)
801 struct pc87360_data *data = pc87360_update_device(dev);
802 unsigned nr = to_sensor_dev_attr(devattr)->index;
804 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
806 static ssize_t show_therm_max_alarm(struct device *dev,
807 struct device_attribute *devattr, char *buf)
809 struct pc87360_data *data = pc87360_update_device(dev);
810 unsigned nr = to_sensor_dev_attr(devattr)->index;
812 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
814 static ssize_t show_therm_crit_alarm(struct device *dev,
815 struct device_attribute *devattr, char *buf)
817 struct pc87360_data *data = pc87360_update_device(dev);
818 unsigned nr = to_sensor_dev_attr(devattr)->index;
820 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
823 static struct sensor_device_attribute therm_min_alarm[] = {
824 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
825 show_therm_min_alarm, NULL, 0 + 11),
826 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
827 show_therm_min_alarm, NULL, 1 + 11),
828 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
829 show_therm_min_alarm, NULL, 2 + 11),
831 static struct sensor_device_attribute therm_max_alarm[] = {
832 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
833 show_therm_max_alarm, NULL, 0 + 11),
834 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
835 show_therm_max_alarm, NULL, 1 + 11),
836 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
837 show_therm_max_alarm, NULL, 2 + 11),
839 static struct sensor_device_attribute therm_crit_alarm[] = {
840 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
841 show_therm_crit_alarm, NULL, 0 + 11),
842 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
843 show_therm_crit_alarm, NULL, 1 + 11),
844 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
845 show_therm_crit_alarm, NULL, 2 + 11),
848 #define THERM_UNIT_ATTRS(X) \
849 &therm_input[X].dev_attr.attr, \
850 &therm_status[X].dev_attr.attr, \
851 &therm_min[X].dev_attr.attr, \
852 &therm_max[X].dev_attr.attr, \
853 &therm_crit[X].dev_attr.attr, \
854 &therm_min_alarm[X].dev_attr.attr, \
855 &therm_max_alarm[X].dev_attr.attr, \
856 &therm_crit_alarm[X].dev_attr.attr
858 static struct attribute *pc8736x_therm_attr_array[] = {
864 static const struct attribute_group pc8736x_therm_group = {
865 .attrs = pc8736x_therm_attr_array,
868 static ssize_t show_temp_input(struct device *dev,
869 struct device_attribute *devattr, char *buf)
871 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
872 struct pc87360_data *data = pc87360_update_device(dev);
873 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
876 static ssize_t show_temp_min(struct device *dev,
877 struct device_attribute *devattr, char *buf)
879 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
880 struct pc87360_data *data = pc87360_update_device(dev);
881 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
884 static ssize_t show_temp_max(struct device *dev,
885 struct device_attribute *devattr, char *buf)
887 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
888 struct pc87360_data *data = pc87360_update_device(dev);
889 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
892 static ssize_t show_temp_crit(struct device *dev,
893 struct device_attribute *devattr, char *buf)
895 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
896 struct pc87360_data *data = pc87360_update_device(dev);
897 return sprintf(buf, "%d\n",
898 TEMP_FROM_REG(data->temp_crit[attr->index]));
901 static ssize_t show_temp_status(struct device *dev,
902 struct device_attribute *devattr, char *buf)
904 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
905 struct pc87360_data *data = pc87360_update_device(dev);
906 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
909 static ssize_t set_temp_min(struct device *dev,
910 struct device_attribute *devattr,
911 const char *buf, size_t count)
913 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
914 struct pc87360_data *data = dev_get_drvdata(dev);
918 err = kstrtol(buf, 10, &val);
922 mutex_lock(&data->update_lock);
923 data->temp_min[attr->index] = TEMP_TO_REG(val);
924 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
925 data->temp_min[attr->index]);
926 mutex_unlock(&data->update_lock);
930 static ssize_t set_temp_max(struct device *dev,
931 struct device_attribute *devattr,
932 const char *buf, size_t count)
934 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
935 struct pc87360_data *data = dev_get_drvdata(dev);
939 err = kstrtol(buf, 10, &val);
943 mutex_lock(&data->update_lock);
944 data->temp_max[attr->index] = TEMP_TO_REG(val);
945 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
946 data->temp_max[attr->index]);
947 mutex_unlock(&data->update_lock);
951 static ssize_t set_temp_crit(struct device *dev,
952 struct device_attribute *devattr, const char *buf,
955 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
956 struct pc87360_data *data = dev_get_drvdata(dev);
960 err = kstrtol(buf, 10, &val);
964 mutex_lock(&data->update_lock);
965 data->temp_crit[attr->index] = TEMP_TO_REG(val);
966 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
967 data->temp_crit[attr->index]);
968 mutex_unlock(&data->update_lock);
972 static struct sensor_device_attribute temp_input[] = {
973 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
974 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
975 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
977 static struct sensor_device_attribute temp_status[] = {
978 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
979 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
980 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
982 static struct sensor_device_attribute temp_min[] = {
983 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
984 show_temp_min, set_temp_min, 0),
985 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
986 show_temp_min, set_temp_min, 1),
987 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
988 show_temp_min, set_temp_min, 2),
990 static struct sensor_device_attribute temp_max[] = {
991 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
992 show_temp_max, set_temp_max, 0),
993 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
994 show_temp_max, set_temp_max, 1),
995 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
996 show_temp_max, set_temp_max, 2),
998 static struct sensor_device_attribute temp_crit[] = {
999 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
1000 show_temp_crit, set_temp_crit, 0),
1001 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
1002 show_temp_crit, set_temp_crit, 1),
1003 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
1004 show_temp_crit, set_temp_crit, 2),
1007 static ssize_t show_temp_alarms(struct device *dev,
1008 struct device_attribute *attr, char *buf)
1010 struct pc87360_data *data = pc87360_update_device(dev);
1011 return sprintf(buf, "%u\n", data->temp_alarms);
1014 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
1017 * show_temp_min/max_alarm() reads data from the per-channel status
1018 * register (sec 12.3.7), not the temp event status registers (sec
1019 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1022 static ssize_t show_temp_min_alarm(struct device *dev,
1023 struct device_attribute *devattr, char *buf)
1025 struct pc87360_data *data = pc87360_update_device(dev);
1026 unsigned nr = to_sensor_dev_attr(devattr)->index;
1028 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1031 static ssize_t show_temp_max_alarm(struct device *dev,
1032 struct device_attribute *devattr, char *buf)
1034 struct pc87360_data *data = pc87360_update_device(dev);
1035 unsigned nr = to_sensor_dev_attr(devattr)->index;
1037 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1040 static ssize_t show_temp_crit_alarm(struct device *dev,
1041 struct device_attribute *devattr, char *buf)
1043 struct pc87360_data *data = pc87360_update_device(dev);
1044 unsigned nr = to_sensor_dev_attr(devattr)->index;
1046 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1049 static struct sensor_device_attribute temp_min_alarm[] = {
1050 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
1051 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
1052 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
1055 static struct sensor_device_attribute temp_max_alarm[] = {
1056 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
1057 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
1058 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
1061 static struct sensor_device_attribute temp_crit_alarm[] = {
1062 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
1063 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
1064 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
1067 #define TEMP_FAULT 0x40 /* open diode */
1068 static ssize_t show_temp_fault(struct device *dev,
1069 struct device_attribute *devattr, char *buf)
1071 struct pc87360_data *data = pc87360_update_device(dev);
1072 unsigned nr = to_sensor_dev_attr(devattr)->index;
1074 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1076 static struct sensor_device_attribute temp_fault[] = {
1077 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
1078 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
1079 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
1082 #define TEMP_UNIT_ATTRS(X) \
1083 { &temp_input[X].dev_attr.attr, \
1084 &temp_status[X].dev_attr.attr, \
1085 &temp_min[X].dev_attr.attr, \
1086 &temp_max[X].dev_attr.attr, \
1087 &temp_crit[X].dev_attr.attr, \
1088 &temp_min_alarm[X].dev_attr.attr, \
1089 &temp_max_alarm[X].dev_attr.attr, \
1090 &temp_crit_alarm[X].dev_attr.attr, \
1091 &temp_fault[X].dev_attr.attr, \
1095 static struct attribute *pc8736x_temp_attr[][10] = {
1101 static const struct attribute_group pc8736x_temp_attr_group[] = {
1102 { .attrs = pc8736x_temp_attr[0] },
1103 { .attrs = pc8736x_temp_attr[1] },
1104 { .attrs = pc8736x_temp_attr[2] }
1107 static ssize_t show_name(struct device *dev,
1108 struct device_attribute *devattr, char *buf)
1110 struct pc87360_data *data = dev_get_drvdata(dev);
1111 return sprintf(buf, "%s\n", data->name);
1114 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1117 * Device detection, registration and update
1120 static int __init pc87360_find(int sioaddr, u8 *devid,
1121 unsigned short *addresses)
1125 int nrdev; /* logical device count */
1127 /* No superio_enter */
1129 /* Identify device */
1130 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1132 case 0xE1: /* PC87360 */
1133 case 0xE8: /* PC87363 */
1134 case 0xE4: /* PC87364 */
1137 case 0xE5: /* PC87365 */
1138 case 0xE9: /* PC87366 */
1142 superio_exit(sioaddr);
1145 /* Remember the device id */
1148 for (i = 0; i < nrdev; i++) {
1149 /* select logical device */
1150 superio_outb(sioaddr, DEV, logdev[i]);
1152 val = superio_inb(sioaddr, ACT);
1153 if (!(val & 0x01)) {
1154 pr_info("Device 0x%02x not activated\n", logdev[i]);
1158 val = (superio_inb(sioaddr, BASE) << 8)
1159 | superio_inb(sioaddr, BASE + 1);
1161 pr_info("Base address not set for device 0x%02x\n",
1168 if (i == 0) { /* Fans */
1169 confreg[0] = superio_inb(sioaddr, 0xF0);
1170 confreg[1] = superio_inb(sioaddr, 0xF1);
1172 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1173 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1174 (confreg[0] >> 4) & 1);
1175 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1176 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1177 (confreg[0] >> 7) & 1);
1178 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1179 confreg[1] & 1, (confreg[1] >> 1) & 1,
1180 (confreg[1] >> 2) & 1);
1181 } else if (i == 1) { /* Voltages */
1182 /* Are we using thermistors? */
1183 if (*devid == 0xE9) { /* PC87366 */
1185 * These registers are not logical-device
1186 * specific, just that we won't need them if
1187 * we don't use the VLM device
1189 confreg[2] = superio_inb(sioaddr, 0x2B);
1190 confreg[3] = superio_inb(sioaddr, 0x25);
1192 if (confreg[2] & 0x40) {
1193 pr_info("Using thermistors for temperature monitoring\n");
1195 if (confreg[3] & 0xE0) {
1196 pr_info("VID inputs routed (mode %u)\n",
1203 superio_exit(sioaddr);
1207 static void pc87360_remove_files(struct device *dev)
1211 device_remove_file(dev, &dev_attr_name);
1212 device_remove_file(dev, &dev_attr_alarms_temp);
1213 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1214 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1215 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1216 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1217 device_remove_file(dev, &pwm[i].dev_attr);
1219 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1220 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1223 static int pc87360_probe(struct platform_device *pdev)
1226 struct pc87360_data *data;
1228 const char *name = "pc87360";
1229 int use_thermistors = 0;
1230 struct device *dev = &pdev->dev;
1232 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1250 data->fannr = extra_isa[0] ? 3 : 0;
1251 data->innr = extra_isa[1] ? 11 : 0;
1252 data->tempnr = extra_isa[2] ? 2 : 0;
1256 data->fannr = extra_isa[0] ? 3 : 0;
1257 data->innr = extra_isa[1] ? 14 : 0;
1258 data->tempnr = extra_isa[2] ? 3 : 0;
1264 mutex_init(&data->lock);
1265 mutex_init(&data->update_lock);
1266 platform_set_drvdata(pdev, data);
1268 for (i = 0; i < LDNI_MAX; i++) {
1269 data->address[i] = extra_isa[i];
1270 if (data->address[i]
1271 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1272 pc87360_driver.driver.name)) {
1274 "Region 0x%x-0x%x already in use!\n",
1275 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
1280 /* Retrieve the fans configuration from Super-I/O space */
1282 data->fan_conf = confreg[0] | (confreg[1] << 8);
1285 * Use the correct reference voltage
1286 * Unless both the VLM and the TMS logical devices agree to
1287 * use an external Vref, the internal one is used.
1290 i = pc87360_read_value(data, LD_IN, NO_BANK,
1291 PC87365_REG_IN_CONFIG);
1293 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1294 PC87365_REG_TEMP_CONFIG);
1296 data->in_vref = (i&0x02) ? 3025 : 2966;
1297 dev_dbg(dev, "Using %s reference voltage\n",
1298 (i&0x02) ? "external" : "internal");
1300 data->vid_conf = confreg[3];
1301 data->vrm = vid_which_vrm();
1304 /* Fan clock dividers may be needed before any data is read */
1305 for (i = 0; i < data->fannr; i++) {
1306 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1307 data->fan_status[i] = pc87360_read_value(data,
1309 PC87360_REG_FAN_STATUS(i));
1313 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1314 use_thermistors = confreg[2] & 0x40;
1316 pc87360_init_device(pdev, use_thermistors);
1319 /* Register all-or-nothing sysfs groups */
1322 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1327 if (data->innr == 14) {
1328 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1333 /* create device attr-files for varying sysfs groups */
1336 for (i = 0; i < data->tempnr; i++) {
1337 err = sysfs_create_group(&dev->kobj,
1338 &pc8736x_temp_attr_group[i]);
1342 err = device_create_file(dev, &dev_attr_alarms_temp);
1347 for (i = 0; i < data->fannr; i++) {
1348 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1349 err = sysfs_create_group(&dev->kobj,
1350 &pc8736x_fan_attr_group[i]);
1354 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1355 err = device_create_file(dev, &pwm[i].dev_attr);
1361 err = device_create_file(dev, &dev_attr_name);
1365 data->hwmon_dev = hwmon_device_register(dev);
1366 if (IS_ERR(data->hwmon_dev)) {
1367 err = PTR_ERR(data->hwmon_dev);
1373 pc87360_remove_files(dev);
1377 static int pc87360_remove(struct platform_device *pdev)
1379 struct pc87360_data *data = platform_get_drvdata(pdev);
1381 hwmon_device_unregister(data->hwmon_dev);
1382 pc87360_remove_files(&pdev->dev);
1388 * ldi is the logical device index
1389 * bank is for voltages and temperatures only
1391 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1396 mutex_lock(&(data->lock));
1397 if (bank != NO_BANK)
1398 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1399 res = inb_p(data->address[ldi] + reg);
1400 mutex_unlock(&(data->lock));
1405 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1408 mutex_lock(&(data->lock));
1409 if (bank != NO_BANK)
1410 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1411 outb_p(value, data->address[ldi] + reg);
1412 mutex_unlock(&(data->lock));
1415 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1416 #define CHAN_CNVRTD 0x80 /* new data ready */
1417 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1418 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1419 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1421 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1422 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1423 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1425 static void pc87360_init_device(struct platform_device *pdev,
1426 int use_thermistors)
1428 struct pc87360_data *data = platform_get_drvdata(pdev);
1430 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1431 const u8 init_temp[3] = { 2, 2, 1 };
1434 if (init >= 2 && data->innr) {
1435 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1436 PC87365_REG_IN_CONVRATE);
1437 dev_info(&pdev->dev,
1438 "VLM conversion set to 1s period, 160us delay\n");
1439 pc87360_write_value(data, LD_IN, NO_BANK,
1440 PC87365_REG_IN_CONVRATE,
1441 (reg & 0xC0) | 0x11);
1444 nr = data->innr < 11 ? data->innr : 11;
1445 for (i = 0; i < nr; i++) {
1446 reg = pc87360_read_value(data, LD_IN, i,
1447 PC87365_REG_IN_STATUS);
1448 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1449 if (init >= init_in[i]) {
1450 /* Forcibly enable voltage channel */
1451 if (!(reg & CHAN_ENA)) {
1452 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1454 pc87360_write_value(data, LD_IN, i,
1455 PC87365_REG_IN_STATUS,
1456 (reg & 0x68) | 0x87);
1462 * We can't blindly trust the Super-I/O space configuration bit,
1463 * most BIOS won't set it properly
1465 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1466 for (i = 11; i < data->innr; i++) {
1467 reg = pc87360_read_value(data, LD_IN, i,
1468 PC87365_REG_TEMP_STATUS);
1469 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1470 /* thermistors are temp[4-6], measured on vin[11-14] */
1471 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1473 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1475 i = use_thermistors ? 2 : 0;
1476 for (; i < data->tempnr; i++) {
1477 reg = pc87360_read_value(data, LD_TEMP, i,
1478 PC87365_REG_TEMP_STATUS);
1479 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1480 if (init >= init_temp[i]) {
1481 /* Forcibly enable temperature channel */
1482 if (!(reg & CHAN_ENA)) {
1484 "Forcibly enabling temp%d\n", i + 1);
1485 pc87360_write_value(data, LD_TEMP, i,
1486 PC87365_REG_TEMP_STATUS,
1492 if (use_thermistors) {
1493 for (i = 11; i < data->innr; i++) {
1494 if (init >= init_in[i]) {
1496 * The pin may already be used by thermal
1499 reg = pc87360_read_value(data, LD_TEMP,
1500 (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1501 if (reg & CHAN_ENA) {
1503 "Skipping temp%d, pin already in use by temp%d\n",
1504 i - 7, (i - 11) / 2);
1508 /* Forcibly enable thermistor channel */
1509 reg = pc87360_read_value(data, LD_IN, i,
1510 PC87365_REG_IN_STATUS);
1511 if (!(reg & CHAN_ENA)) {
1513 "Forcibly enabling temp%d\n",
1515 pc87360_write_value(data, LD_IN, i,
1516 PC87365_REG_TEMP_STATUS,
1517 (reg & 0x60) | 0x8F);
1524 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1525 PC87365_REG_IN_CONFIG);
1526 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1527 if (reg & CHAN_ENA) {
1529 "Forcibly enabling monitoring (VLM)\n");
1530 pc87360_write_value(data, LD_IN, NO_BANK,
1531 PC87365_REG_IN_CONFIG,
1537 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1538 PC87365_REG_TEMP_CONFIG);
1539 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1540 if (reg & CHAN_ENA) {
1542 "Forcibly enabling monitoring (TMS)\n");
1543 pc87360_write_value(data, LD_TEMP, NO_BANK,
1544 PC87365_REG_TEMP_CONFIG,
1549 /* Chip config as documented by National Semi. */
1550 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1552 * We voluntarily omit the bank here, in case the
1553 * sequence itself matters. It shouldn't be a problem,
1554 * since nobody else is supposed to access the
1555 * device at that point.
1557 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1558 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1559 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1565 static void pc87360_autodiv(struct device *dev, int nr)
1567 struct pc87360_data *data = dev_get_drvdata(dev);
1568 u8 old_min = data->fan_min[nr];
1570 /* Increase clock divider if needed and possible */
1571 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1572 || (data->fan[nr] >= 224)) { /* next to overflow */
1573 if ((data->fan_status[nr] & 0x60) != 0x60) {
1574 data->fan_status[nr] += 0x20;
1575 data->fan_min[nr] >>= 1;
1576 data->fan[nr] >>= 1;
1578 "Increasing clock divider to %d for fan %d\n",
1579 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1582 /* Decrease clock divider if possible */
1583 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1584 && data->fan[nr] < 85 /* bad accuracy */
1585 && (data->fan_status[nr] & 0x60) != 0x00) {
1586 data->fan_status[nr] -= 0x20;
1587 data->fan_min[nr] <<= 1;
1588 data->fan[nr] <<= 1;
1590 "Decreasing clock divider to %d for fan %d\n",
1591 FAN_DIV_FROM_REG(data->fan_status[nr]),
1596 /* Write new fan min if it changed */
1597 if (old_min != data->fan_min[nr]) {
1598 pc87360_write_value(data, LD_FAN, NO_BANK,
1599 PC87360_REG_FAN_MIN(nr),
1604 static struct pc87360_data *pc87360_update_device(struct device *dev)
1606 struct pc87360_data *data = dev_get_drvdata(dev);
1609 mutex_lock(&data->update_lock);
1611 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1612 dev_dbg(dev, "Data update\n");
1615 for (i = 0; i < data->fannr; i++) {
1616 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1617 data->fan_status[i] =
1618 pc87360_read_value(data, LD_FAN,
1619 NO_BANK, PC87360_REG_FAN_STATUS(i));
1620 data->fan[i] = pc87360_read_value(data, LD_FAN,
1621 NO_BANK, PC87360_REG_FAN(i));
1622 data->fan_min[i] = pc87360_read_value(data,
1624 PC87360_REG_FAN_MIN(i));
1625 /* Change clock divider if needed */
1626 pc87360_autodiv(dev, i);
1627 /* Clear bits and write new divider */
1628 pc87360_write_value(data, LD_FAN, NO_BANK,
1629 PC87360_REG_FAN_STATUS(i),
1630 data->fan_status[i]);
1632 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1633 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1634 NO_BANK, PC87360_REG_PWM(i));
1638 for (i = 0; i < data->innr; i++) {
1639 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1640 PC87365_REG_IN_STATUS);
1642 pc87360_write_value(data, LD_IN, i,
1643 PC87365_REG_IN_STATUS,
1644 data->in_status[i]);
1645 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1646 data->in[i] = pc87360_read_value(data, LD_IN,
1649 if (data->in_status[i] & CHAN_ENA) {
1650 data->in_min[i] = pc87360_read_value(data,
1652 PC87365_REG_IN_MIN);
1653 data->in_max[i] = pc87360_read_value(data,
1655 PC87365_REG_IN_MAX);
1657 data->in_crit[i-11] =
1658 pc87360_read_value(data, LD_IN,
1659 i, PC87365_REG_TEMP_CRIT);
1663 data->in_alarms = pc87360_read_value(data, LD_IN,
1664 NO_BANK, PC87365_REG_IN_ALARMS1)
1665 | ((pc87360_read_value(data, LD_IN,
1666 NO_BANK, PC87365_REG_IN_ALARMS2)
1668 data->vid = (data->vid_conf & 0xE0) ?
1669 pc87360_read_value(data, LD_IN,
1670 NO_BANK, PC87365_REG_VID) : 0x1F;
1674 for (i = 0; i < data->tempnr; i++) {
1675 data->temp_status[i] = pc87360_read_value(data,
1677 PC87365_REG_TEMP_STATUS);
1679 pc87360_write_value(data, LD_TEMP, i,
1680 PC87365_REG_TEMP_STATUS,
1681 data->temp_status[i]);
1682 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1683 data->temp[i] = pc87360_read_value(data,
1687 if (data->temp_status[i] & CHAN_ENA) {
1688 data->temp_min[i] = pc87360_read_value(data,
1690 PC87365_REG_TEMP_MIN);
1691 data->temp_max[i] = pc87360_read_value(data,
1693 PC87365_REG_TEMP_MAX);
1694 data->temp_crit[i] = pc87360_read_value(data,
1696 PC87365_REG_TEMP_CRIT);
1700 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1701 NO_BANK, PC87365_REG_TEMP_ALARMS)
1705 data->last_updated = jiffies;
1709 mutex_unlock(&data->update_lock);
1714 static int __init pc87360_device_add(unsigned short address)
1716 struct resource res[3];
1717 int err, i, res_count;
1719 pdev = platform_device_alloc("pc87360", address);
1722 pr_err("Device allocation failed\n");
1726 memset(res, 0, 3 * sizeof(struct resource));
1728 for (i = 0; i < 3; i++) {
1731 res[res_count].start = extra_isa[i];
1732 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1733 res[res_count].name = "pc87360",
1734 res[res_count].flags = IORESOURCE_IO,
1736 err = acpi_check_resource_conflict(&res[res_count]);
1738 goto exit_device_put;
1743 err = platform_device_add_resources(pdev, res, res_count);
1745 pr_err("Device resources addition failed (%d)\n", err);
1746 goto exit_device_put;
1749 err = platform_device_add(pdev);
1751 pr_err("Device addition failed (%d)\n", err);
1752 goto exit_device_put;
1758 platform_device_put(pdev);
1763 static int __init pc87360_init(void)
1766 unsigned short address = 0;
1768 if (pc87360_find(0x2e, &devid, extra_isa)
1769 && pc87360_find(0x4e, &devid, extra_isa)) {
1770 pr_warn("PC8736x not detected, module not inserted\n");
1774 /* Arbitrarily pick one of the addresses */
1775 for (i = 0; i < 3; i++) {
1776 if (extra_isa[i] != 0x0000) {
1777 address = extra_isa[i];
1782 if (address == 0x0000) {
1783 pr_warn("No active logical device, module not inserted\n");
1787 err = platform_driver_register(&pc87360_driver);
1791 /* Sets global pdev as a side effect */
1792 err = pc87360_device_add(address);
1799 platform_driver_unregister(&pc87360_driver);
1804 static void __exit pc87360_exit(void)
1806 platform_device_unregister(pdev);
1807 platform_driver_unregister(&pc87360_driver);
1811 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1812 MODULE_DESCRIPTION("PC8736x hardware monitor");
1813 MODULE_LICENSE("GPL");
1815 module_init(pc87360_init);
1816 module_exit(pc87360_exit);