2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
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 = {
249 .probe = pc87360_probe,
250 .remove = pc87360_remove,
257 static ssize_t show_fan_input(struct device *dev,
258 struct device_attribute *devattr, char *buf)
260 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
261 struct pc87360_data *data = pc87360_update_device(dev);
262 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
263 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
265 static ssize_t show_fan_min(struct device *dev,
266 struct device_attribute *devattr, char *buf)
268 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
269 struct pc87360_data *data = pc87360_update_device(dev);
270 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
271 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
273 static ssize_t show_fan_div(struct device *dev,
274 struct device_attribute *devattr, char *buf)
276 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
277 struct pc87360_data *data = pc87360_update_device(dev);
278 return sprintf(buf, "%u\n",
279 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
281 static ssize_t show_fan_status(struct device *dev,
282 struct device_attribute *devattr, char *buf)
284 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
285 struct pc87360_data *data = pc87360_update_device(dev);
286 return sprintf(buf, "%u\n",
287 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
289 static ssize_t set_fan_min(struct device *dev,
290 struct device_attribute *devattr, const char *buf,
293 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
294 struct pc87360_data *data = dev_get_drvdata(dev);
298 err = kstrtol(buf, 10, &fan_min);
302 mutex_lock(&data->update_lock);
303 fan_min = FAN_TO_REG(fan_min,
304 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
306 /* If it wouldn't fit, change clock divisor */
308 && (data->fan_status[attr->index] & 0x60) != 0x60) {
310 data->fan[attr->index] >>= 1;
311 data->fan_status[attr->index] += 0x20;
313 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
314 pc87360_write_value(data, LD_FAN, NO_BANK,
315 PC87360_REG_FAN_MIN(attr->index),
316 data->fan_min[attr->index]);
318 /* Write new divider, preserve alarm bits */
319 pc87360_write_value(data, LD_FAN, NO_BANK,
320 PC87360_REG_FAN_STATUS(attr->index),
321 data->fan_status[attr->index] & 0xF9);
322 mutex_unlock(&data->update_lock);
327 static struct sensor_device_attribute fan_input[] = {
328 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
329 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
330 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
332 static struct sensor_device_attribute fan_status[] = {
333 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
334 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
335 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
337 static struct sensor_device_attribute fan_div[] = {
338 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
339 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
340 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
342 static struct sensor_device_attribute fan_min[] = {
343 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
344 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
345 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
348 #define FAN_UNIT_ATTRS(X) \
349 { &fan_input[X].dev_attr.attr, \
350 &fan_status[X].dev_attr.attr, \
351 &fan_div[X].dev_attr.attr, \
352 &fan_min[X].dev_attr.attr, \
356 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
359 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
360 struct pc87360_data *data = pc87360_update_device(dev);
361 return sprintf(buf, "%u\n",
362 PWM_FROM_REG(data->pwm[attr->index],
363 FAN_CONFIG_INVERT(data->fan_conf,
366 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
367 const char *buf, size_t count)
369 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
370 struct pc87360_data *data = dev_get_drvdata(dev);
374 err = kstrtol(buf, 10, &val);
378 mutex_lock(&data->update_lock);
379 data->pwm[attr->index] = PWM_TO_REG(val,
380 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
381 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
382 data->pwm[attr->index]);
383 mutex_unlock(&data->update_lock);
387 static struct sensor_device_attribute pwm[] = {
388 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
389 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
390 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
393 static struct attribute *pc8736x_fan_attr[][5] = {
399 static const struct attribute_group pc8736x_fan_attr_group[] = {
400 { .attrs = pc8736x_fan_attr[0], },
401 { .attrs = pc8736x_fan_attr[1], },
402 { .attrs = pc8736x_fan_attr[2], },
405 static ssize_t show_in_input(struct device *dev,
406 struct device_attribute *devattr, char *buf)
408 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
409 struct pc87360_data *data = pc87360_update_device(dev);
410 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
413 static ssize_t show_in_min(struct device *dev,
414 struct device_attribute *devattr, char *buf)
416 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
417 struct pc87360_data *data = pc87360_update_device(dev);
418 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
421 static ssize_t show_in_max(struct device *dev,
422 struct device_attribute *devattr, char *buf)
424 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
425 struct pc87360_data *data = pc87360_update_device(dev);
426 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
429 static ssize_t show_in_status(struct device *dev,
430 struct device_attribute *devattr, char *buf)
432 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
433 struct pc87360_data *data = pc87360_update_device(dev);
434 return sprintf(buf, "%u\n", data->in_status[attr->index]);
436 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr,
437 const char *buf, size_t count)
439 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
440 struct pc87360_data *data = dev_get_drvdata(dev);
444 err = kstrtol(buf, 10, &val);
448 mutex_lock(&data->update_lock);
449 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
450 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
451 data->in_min[attr->index]);
452 mutex_unlock(&data->update_lock);
455 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr,
456 const char *buf, size_t count)
458 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
459 struct pc87360_data *data = dev_get_drvdata(dev);
463 err = kstrtol(buf, 10, &val);
467 mutex_lock(&data->update_lock);
468 data->in_max[attr->index] = IN_TO_REG(val,
470 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
471 data->in_max[attr->index]);
472 mutex_unlock(&data->update_lock);
476 static struct sensor_device_attribute in_input[] = {
477 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
478 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
479 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
480 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
481 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
482 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
483 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
484 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
485 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
486 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
487 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
489 static struct sensor_device_attribute in_status[] = {
490 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
491 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
492 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
493 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
494 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
495 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
496 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
497 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
498 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
499 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
500 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
502 static struct sensor_device_attribute in_min[] = {
503 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
504 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
505 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
506 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
507 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
508 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
509 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
510 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
511 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
512 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
513 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
515 static struct sensor_device_attribute in_max[] = {
516 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
517 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
518 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
519 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
520 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
521 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
522 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
523 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
524 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
525 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
526 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
529 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
530 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
531 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
532 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
535 * show_in_min/max_alarm() reads data from the per-channel status
536 * register (sec 11.5.12), not the vin event status registers (sec
537 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
540 static ssize_t show_in_min_alarm(struct device *dev,
541 struct device_attribute *devattr, char *buf)
543 struct pc87360_data *data = pc87360_update_device(dev);
544 unsigned nr = to_sensor_dev_attr(devattr)->index;
546 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
548 static ssize_t show_in_max_alarm(struct device *dev,
549 struct device_attribute *devattr, char *buf)
551 struct pc87360_data *data = pc87360_update_device(dev);
552 unsigned nr = to_sensor_dev_attr(devattr)->index;
554 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
557 static struct sensor_device_attribute in_min_alarm[] = {
558 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
559 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
560 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
561 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
562 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
563 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
564 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
565 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
566 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
567 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
568 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
570 static struct sensor_device_attribute in_max_alarm[] = {
571 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
572 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
573 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
574 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
575 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
576 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
577 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
578 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
579 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
580 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
581 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
584 #define VIN_UNIT_ATTRS(X) \
585 &in_input[X].dev_attr.attr, \
586 &in_status[X].dev_attr.attr, \
587 &in_min[X].dev_attr.attr, \
588 &in_max[X].dev_attr.attr, \
589 &in_min_alarm[X].dev_attr.attr, \
590 &in_max_alarm[X].dev_attr.attr
592 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
595 struct pc87360_data *data = pc87360_update_device(dev);
596 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
598 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
600 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
603 struct pc87360_data *data = dev_get_drvdata(dev);
604 return sprintf(buf, "%u\n", data->vrm);
606 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
607 const char *buf, size_t count)
609 struct pc87360_data *data = dev_get_drvdata(dev);
613 err = kstrtoul(buf, 10, &val);
623 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
625 static ssize_t show_in_alarms(struct device *dev,
626 struct device_attribute *attr, char *buf)
628 struct pc87360_data *data = pc87360_update_device(dev);
629 return sprintf(buf, "%u\n", data->in_alarms);
631 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
633 static struct attribute *pc8736x_vin_attr_array[] = {
645 &dev_attr_cpu0_vid.attr,
647 &dev_attr_alarms_in.attr,
650 static const struct attribute_group pc8736x_vin_group = {
651 .attrs = pc8736x_vin_attr_array,
654 static ssize_t show_therm_input(struct device *dev,
655 struct device_attribute *devattr, char *buf)
657 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
658 struct pc87360_data *data = pc87360_update_device(dev);
659 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
662 static ssize_t show_therm_min(struct device *dev,
663 struct device_attribute *devattr, char *buf)
665 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
666 struct pc87360_data *data = pc87360_update_device(dev);
667 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
670 static ssize_t show_therm_max(struct device *dev,
671 struct device_attribute *devattr, char *buf)
673 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
674 struct pc87360_data *data = pc87360_update_device(dev);
675 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
678 static ssize_t show_therm_crit(struct device *dev,
679 struct device_attribute *devattr, char *buf)
681 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
682 struct pc87360_data *data = pc87360_update_device(dev);
683 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
686 static ssize_t show_therm_status(struct device *dev,
687 struct device_attribute *devattr, char *buf)
689 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
690 struct pc87360_data *data = pc87360_update_device(dev);
691 return sprintf(buf, "%u\n", data->in_status[attr->index]);
694 static ssize_t set_therm_min(struct device *dev,
695 struct device_attribute *devattr,
696 const char *buf, size_t count)
698 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
699 struct pc87360_data *data = dev_get_drvdata(dev);
703 err = kstrtol(buf, 10, &val);
707 mutex_lock(&data->update_lock);
708 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
709 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
710 data->in_min[attr->index]);
711 mutex_unlock(&data->update_lock);
715 static ssize_t set_therm_max(struct device *dev,
716 struct device_attribute *devattr,
717 const char *buf, size_t count)
719 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
720 struct pc87360_data *data = dev_get_drvdata(dev);
724 err = kstrtol(buf, 10, &val);
728 mutex_lock(&data->update_lock);
729 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
730 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
731 data->in_max[attr->index]);
732 mutex_unlock(&data->update_lock);
735 static ssize_t set_therm_crit(struct device *dev,
736 struct device_attribute *devattr,
737 const char *buf, size_t count)
739 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
740 struct pc87360_data *data = dev_get_drvdata(dev);
744 err = kstrtol(buf, 10, &val);
748 mutex_lock(&data->update_lock);
749 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
750 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
751 data->in_crit[attr->index-11]);
752 mutex_unlock(&data->update_lock);
757 * the +11 term below reflects the fact that VLM units 11,12,13 are
758 * used in the chip to measure voltage across the thermistors
760 static struct sensor_device_attribute therm_input[] = {
761 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11),
762 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11),
763 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11),
765 static struct sensor_device_attribute therm_status[] = {
766 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11),
767 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11),
768 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11),
770 static struct sensor_device_attribute therm_min[] = {
771 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
772 show_therm_min, set_therm_min, 0 + 11),
773 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
774 show_therm_min, set_therm_min, 1 + 11),
775 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
776 show_therm_min, set_therm_min, 2 + 11),
778 static struct sensor_device_attribute therm_max[] = {
779 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
780 show_therm_max, set_therm_max, 0 + 11),
781 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
782 show_therm_max, set_therm_max, 1 + 11),
783 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
784 show_therm_max, set_therm_max, 2 + 11),
786 static struct sensor_device_attribute therm_crit[] = {
787 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
788 show_therm_crit, set_therm_crit, 0 + 11),
789 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
790 show_therm_crit, set_therm_crit, 1 + 11),
791 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
792 show_therm_crit, set_therm_crit, 2 + 11),
796 * show_therm_min/max_alarm() reads data from the per-channel voltage
797 * status register (sec 11.5.12)
800 static ssize_t show_therm_min_alarm(struct device *dev,
801 struct device_attribute *devattr, char *buf)
803 struct pc87360_data *data = pc87360_update_device(dev);
804 unsigned nr = to_sensor_dev_attr(devattr)->index;
806 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
808 static ssize_t show_therm_max_alarm(struct device *dev,
809 struct device_attribute *devattr, char *buf)
811 struct pc87360_data *data = pc87360_update_device(dev);
812 unsigned nr = to_sensor_dev_attr(devattr)->index;
814 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
816 static ssize_t show_therm_crit_alarm(struct device *dev,
817 struct device_attribute *devattr, char *buf)
819 struct pc87360_data *data = pc87360_update_device(dev);
820 unsigned nr = to_sensor_dev_attr(devattr)->index;
822 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
825 static struct sensor_device_attribute therm_min_alarm[] = {
826 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
827 show_therm_min_alarm, NULL, 0 + 11),
828 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
829 show_therm_min_alarm, NULL, 1 + 11),
830 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
831 show_therm_min_alarm, NULL, 2 + 11),
833 static struct sensor_device_attribute therm_max_alarm[] = {
834 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
835 show_therm_max_alarm, NULL, 0 + 11),
836 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
837 show_therm_max_alarm, NULL, 1 + 11),
838 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
839 show_therm_max_alarm, NULL, 2 + 11),
841 static struct sensor_device_attribute therm_crit_alarm[] = {
842 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
843 show_therm_crit_alarm, NULL, 0 + 11),
844 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
845 show_therm_crit_alarm, NULL, 1 + 11),
846 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
847 show_therm_crit_alarm, NULL, 2 + 11),
850 #define THERM_UNIT_ATTRS(X) \
851 &therm_input[X].dev_attr.attr, \
852 &therm_status[X].dev_attr.attr, \
853 &therm_min[X].dev_attr.attr, \
854 &therm_max[X].dev_attr.attr, \
855 &therm_crit[X].dev_attr.attr, \
856 &therm_min_alarm[X].dev_attr.attr, \
857 &therm_max_alarm[X].dev_attr.attr, \
858 &therm_crit_alarm[X].dev_attr.attr
860 static struct attribute *pc8736x_therm_attr_array[] = {
866 static const struct attribute_group pc8736x_therm_group = {
867 .attrs = pc8736x_therm_attr_array,
870 static ssize_t show_temp_input(struct device *dev,
871 struct device_attribute *devattr, char *buf)
873 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
874 struct pc87360_data *data = pc87360_update_device(dev);
875 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
878 static ssize_t show_temp_min(struct device *dev,
879 struct device_attribute *devattr, char *buf)
881 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
882 struct pc87360_data *data = pc87360_update_device(dev);
883 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
886 static ssize_t show_temp_max(struct device *dev,
887 struct device_attribute *devattr, char *buf)
889 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
890 struct pc87360_data *data = pc87360_update_device(dev);
891 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
894 static ssize_t show_temp_crit(struct device *dev,
895 struct device_attribute *devattr, char *buf)
897 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
898 struct pc87360_data *data = pc87360_update_device(dev);
899 return sprintf(buf, "%d\n",
900 TEMP_FROM_REG(data->temp_crit[attr->index]));
903 static ssize_t show_temp_status(struct device *dev,
904 struct device_attribute *devattr, char *buf)
906 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
907 struct pc87360_data *data = pc87360_update_device(dev);
908 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
911 static ssize_t set_temp_min(struct device *dev,
912 struct device_attribute *devattr,
913 const char *buf, size_t count)
915 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
916 struct pc87360_data *data = dev_get_drvdata(dev);
920 err = kstrtol(buf, 10, &val);
924 mutex_lock(&data->update_lock);
925 data->temp_min[attr->index] = TEMP_TO_REG(val);
926 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
927 data->temp_min[attr->index]);
928 mutex_unlock(&data->update_lock);
932 static ssize_t set_temp_max(struct device *dev,
933 struct device_attribute *devattr,
934 const char *buf, size_t count)
936 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
937 struct pc87360_data *data = dev_get_drvdata(dev);
941 err = kstrtol(buf, 10, &val);
945 mutex_lock(&data->update_lock);
946 data->temp_max[attr->index] = TEMP_TO_REG(val);
947 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
948 data->temp_max[attr->index]);
949 mutex_unlock(&data->update_lock);
953 static ssize_t set_temp_crit(struct device *dev,
954 struct device_attribute *devattr, const char *buf,
957 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
958 struct pc87360_data *data = dev_get_drvdata(dev);
962 err = kstrtol(buf, 10, &val);
966 mutex_lock(&data->update_lock);
967 data->temp_crit[attr->index] = TEMP_TO_REG(val);
968 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
969 data->temp_crit[attr->index]);
970 mutex_unlock(&data->update_lock);
974 static struct sensor_device_attribute temp_input[] = {
975 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
976 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
977 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
979 static struct sensor_device_attribute temp_status[] = {
980 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
981 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
982 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
984 static struct sensor_device_attribute temp_min[] = {
985 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
986 show_temp_min, set_temp_min, 0),
987 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
988 show_temp_min, set_temp_min, 1),
989 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
990 show_temp_min, set_temp_min, 2),
992 static struct sensor_device_attribute temp_max[] = {
993 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
994 show_temp_max, set_temp_max, 0),
995 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
996 show_temp_max, set_temp_max, 1),
997 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
998 show_temp_max, set_temp_max, 2),
1000 static struct sensor_device_attribute temp_crit[] = {
1001 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
1002 show_temp_crit, set_temp_crit, 0),
1003 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
1004 show_temp_crit, set_temp_crit, 1),
1005 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
1006 show_temp_crit, set_temp_crit, 2),
1009 static ssize_t show_temp_alarms(struct device *dev,
1010 struct device_attribute *attr, char *buf)
1012 struct pc87360_data *data = pc87360_update_device(dev);
1013 return sprintf(buf, "%u\n", data->temp_alarms);
1016 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
1019 * show_temp_min/max_alarm() reads data from the per-channel status
1020 * register (sec 12.3.7), not the temp event status registers (sec
1021 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1024 static ssize_t show_temp_min_alarm(struct device *dev,
1025 struct device_attribute *devattr, char *buf)
1027 struct pc87360_data *data = pc87360_update_device(dev);
1028 unsigned nr = to_sensor_dev_attr(devattr)->index;
1030 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1033 static ssize_t show_temp_max_alarm(struct device *dev,
1034 struct device_attribute *devattr, char *buf)
1036 struct pc87360_data *data = pc87360_update_device(dev);
1037 unsigned nr = to_sensor_dev_attr(devattr)->index;
1039 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1042 static ssize_t show_temp_crit_alarm(struct device *dev,
1043 struct device_attribute *devattr, char *buf)
1045 struct pc87360_data *data = pc87360_update_device(dev);
1046 unsigned nr = to_sensor_dev_attr(devattr)->index;
1048 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1051 static struct sensor_device_attribute temp_min_alarm[] = {
1052 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
1053 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
1054 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
1057 static struct sensor_device_attribute temp_max_alarm[] = {
1058 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
1059 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
1060 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
1063 static struct sensor_device_attribute temp_crit_alarm[] = {
1064 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
1065 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
1066 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
1069 #define TEMP_FAULT 0x40 /* open diode */
1070 static ssize_t show_temp_fault(struct device *dev,
1071 struct device_attribute *devattr, char *buf)
1073 struct pc87360_data *data = pc87360_update_device(dev);
1074 unsigned nr = to_sensor_dev_attr(devattr)->index;
1076 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1078 static struct sensor_device_attribute temp_fault[] = {
1079 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
1080 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
1081 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
1084 #define TEMP_UNIT_ATTRS(X) \
1085 { &temp_input[X].dev_attr.attr, \
1086 &temp_status[X].dev_attr.attr, \
1087 &temp_min[X].dev_attr.attr, \
1088 &temp_max[X].dev_attr.attr, \
1089 &temp_crit[X].dev_attr.attr, \
1090 &temp_min_alarm[X].dev_attr.attr, \
1091 &temp_max_alarm[X].dev_attr.attr, \
1092 &temp_crit_alarm[X].dev_attr.attr, \
1093 &temp_fault[X].dev_attr.attr, \
1097 static struct attribute *pc8736x_temp_attr[][10] = {
1103 static const struct attribute_group pc8736x_temp_attr_group[] = {
1104 { .attrs = pc8736x_temp_attr[0] },
1105 { .attrs = pc8736x_temp_attr[1] },
1106 { .attrs = pc8736x_temp_attr[2] }
1109 static ssize_t show_name(struct device *dev,
1110 struct device_attribute *devattr, char *buf)
1112 struct pc87360_data *data = dev_get_drvdata(dev);
1113 return sprintf(buf, "%s\n", data->name);
1116 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1119 * Device detection, registration and update
1122 static int __init pc87360_find(int sioaddr, u8 *devid,
1123 unsigned short *addresses)
1127 int nrdev; /* logical device count */
1129 /* No superio_enter */
1131 /* Identify device */
1132 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1134 case 0xE1: /* PC87360 */
1135 case 0xE8: /* PC87363 */
1136 case 0xE4: /* PC87364 */
1139 case 0xE5: /* PC87365 */
1140 case 0xE9: /* PC87366 */
1144 superio_exit(sioaddr);
1147 /* Remember the device id */
1150 for (i = 0; i < nrdev; i++) {
1151 /* select logical device */
1152 superio_outb(sioaddr, DEV, logdev[i]);
1154 val = superio_inb(sioaddr, ACT);
1155 if (!(val & 0x01)) {
1156 pr_info("Device 0x%02x not activated\n", logdev[i]);
1160 val = (superio_inb(sioaddr, BASE) << 8)
1161 | superio_inb(sioaddr, BASE + 1);
1163 pr_info("Base address not set for device 0x%02x\n",
1170 if (i == 0) { /* Fans */
1171 confreg[0] = superio_inb(sioaddr, 0xF0);
1172 confreg[1] = superio_inb(sioaddr, 0xF1);
1174 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1175 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1176 (confreg[0] >> 4) & 1);
1177 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1178 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1179 (confreg[0] >> 7) & 1);
1180 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1181 confreg[1] & 1, (confreg[1] >> 1) & 1,
1182 (confreg[1] >> 2) & 1);
1183 } else if (i == 1) { /* Voltages */
1184 /* Are we using thermistors? */
1185 if (*devid == 0xE9) { /* PC87366 */
1187 * These registers are not logical-device
1188 * specific, just that we won't need them if
1189 * we don't use the VLM device
1191 confreg[2] = superio_inb(sioaddr, 0x2B);
1192 confreg[3] = superio_inb(sioaddr, 0x25);
1194 if (confreg[2] & 0x40) {
1195 pr_info("Using thermistors for temperature monitoring\n");
1197 if (confreg[3] & 0xE0) {
1198 pr_info("VID inputs routed (mode %u)\n",
1205 superio_exit(sioaddr);
1209 static void pc87360_remove_files(struct device *dev)
1213 device_remove_file(dev, &dev_attr_name);
1214 device_remove_file(dev, &dev_attr_alarms_temp);
1215 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1216 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1217 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1218 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1219 device_remove_file(dev, &pwm[i].dev_attr);
1221 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1222 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1225 static int pc87360_probe(struct platform_device *pdev)
1228 struct pc87360_data *data;
1231 int use_thermistors = 0;
1232 struct device *dev = &pdev->dev;
1234 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1253 data->fannr = extra_isa[0] ? 3 : 0;
1254 data->innr = extra_isa[1] ? 11 : 0;
1255 data->tempnr = extra_isa[2] ? 2 : 0;
1259 data->fannr = extra_isa[0] ? 3 : 0;
1260 data->innr = extra_isa[1] ? 14 : 0;
1261 data->tempnr = extra_isa[2] ? 3 : 0;
1266 mutex_init(&data->lock);
1267 mutex_init(&data->update_lock);
1268 platform_set_drvdata(pdev, data);
1270 for (i = 0; i < LDNI_MAX; i++) {
1271 data->address[i] = extra_isa[i];
1272 if (data->address[i]
1273 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1274 pc87360_driver.driver.name)) {
1276 "Region 0x%x-0x%x already in use!\n",
1277 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
1282 /* Retrieve the fans configuration from Super-I/O space */
1284 data->fan_conf = confreg[0] | (confreg[1] << 8);
1287 * Use the correct reference voltage
1288 * Unless both the VLM and the TMS logical devices agree to
1289 * use an external Vref, the internal one is used.
1292 i = pc87360_read_value(data, LD_IN, NO_BANK,
1293 PC87365_REG_IN_CONFIG);
1295 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1296 PC87365_REG_TEMP_CONFIG);
1298 data->in_vref = (i&0x02) ? 3025 : 2966;
1299 dev_dbg(dev, "Using %s reference voltage\n",
1300 (i&0x02) ? "external" : "internal");
1302 data->vid_conf = confreg[3];
1303 data->vrm = vid_which_vrm();
1306 /* Fan clock dividers may be needed before any data is read */
1307 for (i = 0; i < data->fannr; i++) {
1308 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1309 data->fan_status[i] = pc87360_read_value(data,
1311 PC87360_REG_FAN_STATUS(i));
1315 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1316 use_thermistors = confreg[2] & 0x40;
1318 pc87360_init_device(pdev, use_thermistors);
1321 /* Register all-or-nothing sysfs groups */
1324 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1329 if (data->innr == 14) {
1330 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1335 /* create device attr-files for varying sysfs groups */
1338 for (i = 0; i < data->tempnr; i++) {
1339 err = sysfs_create_group(&dev->kobj,
1340 &pc8736x_temp_attr_group[i]);
1344 err = device_create_file(dev, &dev_attr_alarms_temp);
1349 for (i = 0; i < data->fannr; i++) {
1350 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1351 err = sysfs_create_group(&dev->kobj,
1352 &pc8736x_fan_attr_group[i]);
1356 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1357 err = device_create_file(dev, &pwm[i].dev_attr);
1363 err = device_create_file(dev, &dev_attr_name);
1367 data->hwmon_dev = hwmon_device_register(dev);
1368 if (IS_ERR(data->hwmon_dev)) {
1369 err = PTR_ERR(data->hwmon_dev);
1375 pc87360_remove_files(dev);
1379 static int pc87360_remove(struct platform_device *pdev)
1381 struct pc87360_data *data = platform_get_drvdata(pdev);
1383 hwmon_device_unregister(data->hwmon_dev);
1384 pc87360_remove_files(&pdev->dev);
1390 * ldi is the logical device index
1391 * bank is for voltages and temperatures only
1393 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1398 mutex_lock(&(data->lock));
1399 if (bank != NO_BANK)
1400 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1401 res = inb_p(data->address[ldi] + reg);
1402 mutex_unlock(&(data->lock));
1407 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1410 mutex_lock(&(data->lock));
1411 if (bank != NO_BANK)
1412 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1413 outb_p(value, data->address[ldi] + reg);
1414 mutex_unlock(&(data->lock));
1417 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1418 #define CHAN_CNVRTD 0x80 /* new data ready */
1419 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1420 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1421 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1423 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1424 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1425 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1427 static void pc87360_init_device(struct platform_device *pdev,
1428 int use_thermistors)
1430 struct pc87360_data *data = platform_get_drvdata(pdev);
1432 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1433 const u8 init_temp[3] = { 2, 2, 1 };
1436 if (init >= 2 && data->innr) {
1437 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1438 PC87365_REG_IN_CONVRATE);
1439 dev_info(&pdev->dev,
1440 "VLM conversion set to 1s period, 160us delay\n");
1441 pc87360_write_value(data, LD_IN, NO_BANK,
1442 PC87365_REG_IN_CONVRATE,
1443 (reg & 0xC0) | 0x11);
1446 nr = data->innr < 11 ? data->innr : 11;
1447 for (i = 0; i < nr; i++) {
1448 reg = pc87360_read_value(data, LD_IN, i,
1449 PC87365_REG_IN_STATUS);
1450 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1451 if (init >= init_in[i]) {
1452 /* Forcibly enable voltage channel */
1453 if (!(reg & CHAN_ENA)) {
1454 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1456 pc87360_write_value(data, LD_IN, i,
1457 PC87365_REG_IN_STATUS,
1458 (reg & 0x68) | 0x87);
1464 * We can't blindly trust the Super-I/O space configuration bit,
1465 * most BIOS won't set it properly
1467 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1468 for (i = 11; i < data->innr; i++) {
1469 reg = pc87360_read_value(data, LD_IN, i,
1470 PC87365_REG_TEMP_STATUS);
1471 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1472 /* thermistors are temp[4-6], measured on vin[11-14] */
1473 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1475 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1477 i = use_thermistors ? 2 : 0;
1478 for (; i < data->tempnr; i++) {
1479 reg = pc87360_read_value(data, LD_TEMP, i,
1480 PC87365_REG_TEMP_STATUS);
1481 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1482 if (init >= init_temp[i]) {
1483 /* Forcibly enable temperature channel */
1484 if (!(reg & CHAN_ENA)) {
1486 "Forcibly enabling temp%d\n", i + 1);
1487 pc87360_write_value(data, LD_TEMP, i,
1488 PC87365_REG_TEMP_STATUS,
1494 if (use_thermistors) {
1495 for (i = 11; i < data->innr; i++) {
1496 if (init >= init_in[i]) {
1498 * The pin may already be used by thermal
1501 reg = pc87360_read_value(data, LD_TEMP,
1502 (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1503 if (reg & CHAN_ENA) {
1505 "Skipping temp%d, pin already in use by temp%d\n",
1506 i - 7, (i - 11) / 2);
1510 /* Forcibly enable thermistor channel */
1511 reg = pc87360_read_value(data, LD_IN, i,
1512 PC87365_REG_IN_STATUS);
1513 if (!(reg & CHAN_ENA)) {
1515 "Forcibly enabling temp%d\n",
1517 pc87360_write_value(data, LD_IN, i,
1518 PC87365_REG_TEMP_STATUS,
1519 (reg & 0x60) | 0x8F);
1526 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1527 PC87365_REG_IN_CONFIG);
1528 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1529 if (reg & CHAN_ENA) {
1531 "Forcibly enabling monitoring (VLM)\n");
1532 pc87360_write_value(data, LD_IN, NO_BANK,
1533 PC87365_REG_IN_CONFIG,
1539 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1540 PC87365_REG_TEMP_CONFIG);
1541 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1542 if (reg & CHAN_ENA) {
1544 "Forcibly enabling monitoring (TMS)\n");
1545 pc87360_write_value(data, LD_TEMP, NO_BANK,
1546 PC87365_REG_TEMP_CONFIG,
1551 /* Chip config as documented by National Semi. */
1552 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1554 * We voluntarily omit the bank here, in case the
1555 * sequence itself matters. It shouldn't be a problem,
1556 * since nobody else is supposed to access the
1557 * device at that point.
1559 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1561 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1562 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1567 static void pc87360_autodiv(struct device *dev, int nr)
1569 struct pc87360_data *data = dev_get_drvdata(dev);
1570 u8 old_min = data->fan_min[nr];
1572 /* Increase clock divider if needed and possible */
1573 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1574 || (data->fan[nr] >= 224)) { /* next to overflow */
1575 if ((data->fan_status[nr] & 0x60) != 0x60) {
1576 data->fan_status[nr] += 0x20;
1577 data->fan_min[nr] >>= 1;
1578 data->fan[nr] >>= 1;
1580 "Increasing clock divider to %d for fan %d\n",
1581 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1584 /* Decrease clock divider if possible */
1585 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1586 && data->fan[nr] < 85 /* bad accuracy */
1587 && (data->fan_status[nr] & 0x60) != 0x00) {
1588 data->fan_status[nr] -= 0x20;
1589 data->fan_min[nr] <<= 1;
1590 data->fan[nr] <<= 1;
1592 "Decreasing clock divider to %d for fan %d\n",
1593 FAN_DIV_FROM_REG(data->fan_status[nr]),
1598 /* Write new fan min if it changed */
1599 if (old_min != data->fan_min[nr]) {
1600 pc87360_write_value(data, LD_FAN, NO_BANK,
1601 PC87360_REG_FAN_MIN(nr),
1606 static struct pc87360_data *pc87360_update_device(struct device *dev)
1608 struct pc87360_data *data = dev_get_drvdata(dev);
1611 mutex_lock(&data->update_lock);
1613 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1614 dev_dbg(dev, "Data update\n");
1617 for (i = 0; i < data->fannr; i++) {
1618 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1619 data->fan_status[i] =
1620 pc87360_read_value(data, LD_FAN,
1621 NO_BANK, PC87360_REG_FAN_STATUS(i));
1622 data->fan[i] = pc87360_read_value(data, LD_FAN,
1623 NO_BANK, PC87360_REG_FAN(i));
1624 data->fan_min[i] = pc87360_read_value(data,
1626 PC87360_REG_FAN_MIN(i));
1627 /* Change clock divider if needed */
1628 pc87360_autodiv(dev, i);
1629 /* Clear bits and write new divider */
1630 pc87360_write_value(data, LD_FAN, NO_BANK,
1631 PC87360_REG_FAN_STATUS(i),
1632 data->fan_status[i]);
1634 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1635 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1636 NO_BANK, PC87360_REG_PWM(i));
1640 for (i = 0; i < data->innr; i++) {
1641 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1642 PC87365_REG_IN_STATUS);
1644 pc87360_write_value(data, LD_IN, i,
1645 PC87365_REG_IN_STATUS,
1646 data->in_status[i]);
1647 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1648 data->in[i] = pc87360_read_value(data, LD_IN,
1651 if (data->in_status[i] & CHAN_ENA) {
1652 data->in_min[i] = pc87360_read_value(data,
1654 PC87365_REG_IN_MIN);
1655 data->in_max[i] = pc87360_read_value(data,
1657 PC87365_REG_IN_MAX);
1659 data->in_crit[i-11] =
1660 pc87360_read_value(data, LD_IN,
1661 i, PC87365_REG_TEMP_CRIT);
1665 data->in_alarms = pc87360_read_value(data, LD_IN,
1666 NO_BANK, PC87365_REG_IN_ALARMS1)
1667 | ((pc87360_read_value(data, LD_IN,
1668 NO_BANK, PC87365_REG_IN_ALARMS2)
1670 data->vid = (data->vid_conf & 0xE0) ?
1671 pc87360_read_value(data, LD_IN,
1672 NO_BANK, PC87365_REG_VID) : 0x1F;
1676 for (i = 0; i < data->tempnr; i++) {
1677 data->temp_status[i] = pc87360_read_value(data,
1679 PC87365_REG_TEMP_STATUS);
1681 pc87360_write_value(data, LD_TEMP, i,
1682 PC87365_REG_TEMP_STATUS,
1683 data->temp_status[i]);
1684 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1685 data->temp[i] = pc87360_read_value(data,
1689 if (data->temp_status[i] & CHAN_ENA) {
1690 data->temp_min[i] = pc87360_read_value(data,
1692 PC87365_REG_TEMP_MIN);
1693 data->temp_max[i] = pc87360_read_value(data,
1695 PC87365_REG_TEMP_MAX);
1696 data->temp_crit[i] = pc87360_read_value(data,
1698 PC87365_REG_TEMP_CRIT);
1702 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1703 NO_BANK, PC87365_REG_TEMP_ALARMS)
1707 data->last_updated = jiffies;
1711 mutex_unlock(&data->update_lock);
1716 static int __init pc87360_device_add(unsigned short address)
1718 struct resource res[3];
1719 int err, i, res_count;
1721 pdev = platform_device_alloc("pc87360", address);
1724 pr_err("Device allocation failed\n");
1728 memset(res, 0, 3 * sizeof(struct resource));
1730 for (i = 0; i < 3; i++) {
1733 res[res_count].start = extra_isa[i];
1734 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1735 res[res_count].name = "pc87360",
1736 res[res_count].flags = IORESOURCE_IO,
1738 err = acpi_check_resource_conflict(&res[res_count]);
1740 goto exit_device_put;
1745 err = platform_device_add_resources(pdev, res, res_count);
1747 pr_err("Device resources addition failed (%d)\n", err);
1748 goto exit_device_put;
1751 err = platform_device_add(pdev);
1753 pr_err("Device addition failed (%d)\n", err);
1754 goto exit_device_put;
1760 platform_device_put(pdev);
1765 static int __init pc87360_init(void)
1768 unsigned short address = 0;
1770 if (pc87360_find(0x2e, &devid, extra_isa)
1771 && pc87360_find(0x4e, &devid, extra_isa)) {
1772 pr_warn("PC8736x not detected, module not inserted\n");
1776 /* Arbitrarily pick one of the addresses */
1777 for (i = 0; i < 3; i++) {
1778 if (extra_isa[i] != 0x0000) {
1779 address = extra_isa[i];
1784 if (address == 0x0000) {
1785 pr_warn("No active logical device, module not inserted\n");
1789 err = platform_driver_register(&pc87360_driver);
1793 /* Sets global pdev as a side effect */
1794 err = pc87360_device_add(address);
1801 platform_driver_unregister(&pc87360_driver);
1806 static void __exit pc87360_exit(void)
1808 platform_device_unregister(pdev);
1809 platform_driver_unregister(&pc87360_driver);
1813 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1814 MODULE_DESCRIPTION("PC8736x hardware monitor");
1815 MODULE_LICENSE("GPL");
1817 module_init(pc87360_init);
1818 module_exit(pc87360_exit);