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 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/slab.h>
39 #include <linux/jiffies.h>
40 #include <linux/platform_device.h>
41 #include <linux/hwmon.h>
42 #include <linux/hwmon-sysfs.h>
43 #include <linux/hwmon-vid.h>
44 #include <linux/err.h>
45 #include <linux/mutex.h>
49 static struct platform_device *pdev;
50 static unsigned short extra_isa[3];
54 module_param(init, int, 0);
55 MODULE_PARM_DESC(init,
56 "Chip initialization level:\n"
58 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
59 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
60 " 3: Forcibly enable all voltage and temperature channels, including in9");
62 static unsigned short force_id;
63 module_param(force_id, ushort, 0);
64 MODULE_PARM_DESC(force_id, "Override the detected device ID");
67 * Super-I/O registers and operations
70 #define DEV 0x07 /* Register: Logical device select */
71 #define DEVID 0x20 /* Register: Device ID */
72 #define ACT 0x30 /* Register: Device activation */
73 #define BASE 0x60 /* Register: Base address */
75 #define FSCM 0x09 /* Logical device: fans */
76 #define VLM 0x0d /* Logical device: voltages */
77 #define TMS 0x0e /* Logical device: temperatures */
79 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
85 static inline void superio_outb(int sioaddr, int reg, int val)
91 static inline int superio_inb(int sioaddr, int reg)
94 return inb(sioaddr+1);
97 static inline void superio_exit(int sioaddr)
100 outb(0x02, sioaddr+1);
107 #define PC87360_EXTENT 0x10
108 #define PC87365_REG_BANK 0x09
112 * Fan registers and conversions
115 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
116 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
117 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
118 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
119 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
120 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
122 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
123 480000 / ((val)*(div)))
124 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
125 480000 / ((val)*(div)))
126 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
127 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
129 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
130 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
131 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
133 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
134 static inline u8 PWM_TO_REG(int val, int inv)
146 * Voltage registers and conversions
149 #define PC87365_REG_IN_CONVRATE 0x07
150 #define PC87365_REG_IN_CONFIG 0x08
151 #define PC87365_REG_IN 0x0B
152 #define PC87365_REG_IN_MIN 0x0D
153 #define PC87365_REG_IN_MAX 0x0C
154 #define PC87365_REG_IN_STATUS 0x0A
155 #define PC87365_REG_IN_ALARMS1 0x00
156 #define PC87365_REG_IN_ALARMS2 0x01
157 #define PC87365_REG_VID 0x06
159 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
160 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
161 (val)*256 >= (ref)*255 ? 255: \
162 ((val) * 256 + (ref)/2) / (ref))
165 * Temperature registers and conversions
168 #define PC87365_REG_TEMP_CONFIG 0x08
169 #define PC87365_REG_TEMP 0x0B
170 #define PC87365_REG_TEMP_MIN 0x0D
171 #define PC87365_REG_TEMP_MAX 0x0C
172 #define PC87365_REG_TEMP_CRIT 0x0E
173 #define PC87365_REG_TEMP_STATUS 0x0A
174 #define PC87365_REG_TEMP_ALARMS 0x00
176 #define TEMP_FROM_REG(val) ((val) * 1000)
177 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
178 (val) > 127000 ? 127 : \
179 (val) < 0 ? ((val) - 500) / 1000 : \
180 ((val) + 500) / 1000)
186 struct pc87360_data {
188 struct device *hwmon_dev;
190 struct mutex update_lock;
191 char valid; /* !=0 if following fields are valid */
192 unsigned long last_updated; /* In jiffies */
196 u8 fannr, innr, tempnr;
198 u8 fan[3]; /* Register value */
199 u8 fan_min[3]; /* Register value */
200 u8 fan_status[3]; /* Register value */
201 u8 pwm[3]; /* Register value */
202 u16 fan_conf; /* Configuration register values, combined */
204 u16 in_vref; /* 1 mV/bit */
205 u8 in[14]; /* Register value */
206 u8 in_min[14]; /* Register value */
207 u8 in_max[14]; /* Register value */
208 u8 in_crit[3]; /* Register value */
209 u8 in_status[14]; /* Register value */
210 u16 in_alarms; /* Register values, combined, masked */
211 u8 vid_conf; /* Configuration register value */
213 u8 vid; /* Register value */
215 s8 temp[3]; /* Register value */
216 s8 temp_min[3]; /* Register value */
217 s8 temp_max[3]; /* Register value */
218 s8 temp_crit[3]; /* Register value */
219 u8 temp_status[3]; /* Register value */
220 u8 temp_alarms; /* Register value, masked */
224 * Functions declaration
227 static int pc87360_probe(struct platform_device *pdev);
228 static int __devexit pc87360_remove(struct platform_device *pdev);
230 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
232 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
234 static void pc87360_init_device(struct platform_device *pdev,
235 int use_thermistors);
236 static struct pc87360_data *pc87360_update_device(struct device *dev);
242 static struct platform_driver pc87360_driver = {
244 .owner = THIS_MODULE,
247 .probe = pc87360_probe,
248 .remove = __devexit_p(pc87360_remove),
255 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
257 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
258 struct pc87360_data *data = pc87360_update_device(dev);
259 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
260 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
262 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
264 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
265 struct pc87360_data *data = pc87360_update_device(dev);
266 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
267 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
269 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
271 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
272 struct pc87360_data *data = pc87360_update_device(dev);
273 return sprintf(buf, "%u\n",
274 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
276 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
278 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
279 struct pc87360_data *data = pc87360_update_device(dev);
280 return sprintf(buf, "%u\n",
281 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
283 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
286 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
287 struct pc87360_data *data = dev_get_drvdata(dev);
288 long fan_min = simple_strtol(buf, NULL, 10);
290 mutex_lock(&data->update_lock);
291 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
293 /* If it wouldn't fit, change clock divisor */
295 && (data->fan_status[attr->index] & 0x60) != 0x60) {
297 data->fan[attr->index] >>= 1;
298 data->fan_status[attr->index] += 0x20;
300 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
301 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
302 data->fan_min[attr->index]);
304 /* Write new divider, preserve alarm bits */
305 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
306 data->fan_status[attr->index] & 0xF9);
307 mutex_unlock(&data->update_lock);
312 static struct sensor_device_attribute fan_input[] = {
313 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
314 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
315 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
317 static struct sensor_device_attribute fan_status[] = {
318 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
319 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
320 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
322 static struct sensor_device_attribute fan_div[] = {
323 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
324 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
325 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
327 static struct sensor_device_attribute fan_min[] = {
328 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
329 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
330 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
333 #define FAN_UNIT_ATTRS(X) \
334 &fan_input[X].dev_attr.attr, \
335 &fan_status[X].dev_attr.attr, \
336 &fan_div[X].dev_attr.attr, \
337 &fan_min[X].dev_attr.attr
339 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
341 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
342 struct pc87360_data *data = pc87360_update_device(dev);
343 return sprintf(buf, "%u\n",
344 PWM_FROM_REG(data->pwm[attr->index],
345 FAN_CONFIG_INVERT(data->fan_conf,
348 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
351 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
352 struct pc87360_data *data = dev_get_drvdata(dev);
353 long val = simple_strtol(buf, NULL, 10);
355 mutex_lock(&data->update_lock);
356 data->pwm[attr->index] = PWM_TO_REG(val,
357 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
358 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
359 data->pwm[attr->index]);
360 mutex_unlock(&data->update_lock);
364 static struct sensor_device_attribute pwm[] = {
365 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
366 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
367 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
370 static struct attribute * pc8736x_fan_attr_array[] = {
374 &pwm[0].dev_attr.attr,
375 &pwm[1].dev_attr.attr,
376 &pwm[2].dev_attr.attr,
379 static const struct attribute_group pc8736x_fan_group = {
380 .attrs = pc8736x_fan_attr_array,
383 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
385 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
386 struct pc87360_data *data = pc87360_update_device(dev);
387 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
390 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
392 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
393 struct pc87360_data *data = pc87360_update_device(dev);
394 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
397 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
399 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
400 struct pc87360_data *data = pc87360_update_device(dev);
401 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
404 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
406 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
407 struct pc87360_data *data = pc87360_update_device(dev);
408 return sprintf(buf, "%u\n", data->in_status[attr->index]);
410 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
413 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
414 struct pc87360_data *data = dev_get_drvdata(dev);
415 long val = simple_strtol(buf, NULL, 10);
417 mutex_lock(&data->update_lock);
418 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
419 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
420 data->in_min[attr->index]);
421 mutex_unlock(&data->update_lock);
424 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
427 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
428 struct pc87360_data *data = dev_get_drvdata(dev);
429 long val = simple_strtol(buf, NULL, 10);
431 mutex_lock(&data->update_lock);
432 data->in_max[attr->index] = IN_TO_REG(val,
434 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
435 data->in_max[attr->index]);
436 mutex_unlock(&data->update_lock);
440 static struct sensor_device_attribute in_input[] = {
441 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
442 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
443 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
444 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
445 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
446 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
447 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
448 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
449 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
450 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
451 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
453 static struct sensor_device_attribute in_status[] = {
454 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
455 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
456 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
457 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
458 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
459 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
460 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
461 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
462 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
463 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
464 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
466 static struct sensor_device_attribute in_min[] = {
467 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
468 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
469 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
470 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
471 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
472 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
473 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
474 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
475 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
476 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
477 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
479 static struct sensor_device_attribute in_max[] = {
480 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
481 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
482 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
483 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
484 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
485 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
486 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
487 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
488 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
489 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
490 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
493 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
494 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
495 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
496 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
498 /* show_in_min/max_alarm() reads data from the per-channel status
499 register (sec 11.5.12), not the vin event status registers (sec
500 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
502 static ssize_t show_in_min_alarm(struct device *dev,
503 struct device_attribute *devattr, char *buf)
505 struct pc87360_data *data = pc87360_update_device(dev);
506 unsigned nr = to_sensor_dev_attr(devattr)->index;
508 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
510 static ssize_t show_in_max_alarm(struct device *dev,
511 struct device_attribute *devattr, char *buf)
513 struct pc87360_data *data = pc87360_update_device(dev);
514 unsigned nr = to_sensor_dev_attr(devattr)->index;
516 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
519 static struct sensor_device_attribute in_min_alarm[] = {
520 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
521 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
522 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
523 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
524 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
525 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
526 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
527 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
528 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
529 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
530 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
532 static struct sensor_device_attribute in_max_alarm[] = {
533 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
534 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
535 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
536 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
537 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
538 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
539 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
540 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
541 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
542 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
543 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
546 #define VIN_UNIT_ATTRS(X) \
547 &in_input[X].dev_attr.attr, \
548 &in_status[X].dev_attr.attr, \
549 &in_min[X].dev_attr.attr, \
550 &in_max[X].dev_attr.attr, \
551 &in_min_alarm[X].dev_attr.attr, \
552 &in_max_alarm[X].dev_attr.attr
554 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
556 struct pc87360_data *data = pc87360_update_device(dev);
557 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
559 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
561 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
563 struct pc87360_data *data = dev_get_drvdata(dev);
564 return sprintf(buf, "%u\n", data->vrm);
566 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
568 struct pc87360_data *data = dev_get_drvdata(dev);
569 data->vrm = simple_strtoul(buf, NULL, 10);
572 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
574 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
576 struct pc87360_data *data = pc87360_update_device(dev);
577 return sprintf(buf, "%u\n", data->in_alarms);
579 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
581 static struct attribute *pc8736x_vin_attr_array[] = {
593 &dev_attr_cpu0_vid.attr,
595 &dev_attr_alarms_in.attr,
598 static const struct attribute_group pc8736x_vin_group = {
599 .attrs = pc8736x_vin_attr_array,
602 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
604 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
605 struct pc87360_data *data = pc87360_update_device(dev);
606 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
609 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
611 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
612 struct pc87360_data *data = pc87360_update_device(dev);
613 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
616 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
618 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
619 struct pc87360_data *data = pc87360_update_device(dev);
620 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
623 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
625 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
626 struct pc87360_data *data = pc87360_update_device(dev);
627 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
630 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
632 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
633 struct pc87360_data *data = pc87360_update_device(dev);
634 return sprintf(buf, "%u\n", data->in_status[attr->index]);
636 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
639 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
640 struct pc87360_data *data = dev_get_drvdata(dev);
641 long val = simple_strtol(buf, NULL, 10);
643 mutex_lock(&data->update_lock);
644 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
645 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
646 data->in_min[attr->index]);
647 mutex_unlock(&data->update_lock);
650 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
653 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
654 struct pc87360_data *data = dev_get_drvdata(dev);
655 long val = simple_strtol(buf, NULL, 10);
657 mutex_lock(&data->update_lock);
658 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
659 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
660 data->in_max[attr->index]);
661 mutex_unlock(&data->update_lock);
664 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
667 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
668 struct pc87360_data *data = dev_get_drvdata(dev);
669 long val = simple_strtol(buf, NULL, 10);
671 mutex_lock(&data->update_lock);
672 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
673 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
674 data->in_crit[attr->index-11]);
675 mutex_unlock(&data->update_lock);
679 /* the +11 term below reflects the fact that VLM units 11,12,13 are
680 used in the chip to measure voltage across the thermistors
682 static struct sensor_device_attribute therm_input[] = {
683 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
684 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
685 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
687 static struct sensor_device_attribute therm_status[] = {
688 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
689 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
690 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
692 static struct sensor_device_attribute therm_min[] = {
693 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
694 show_therm_min, set_therm_min, 0+11),
695 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
696 show_therm_min, set_therm_min, 1+11),
697 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
698 show_therm_min, set_therm_min, 2+11),
700 static struct sensor_device_attribute therm_max[] = {
701 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
702 show_therm_max, set_therm_max, 0+11),
703 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
704 show_therm_max, set_therm_max, 1+11),
705 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
706 show_therm_max, set_therm_max, 2+11),
708 static struct sensor_device_attribute therm_crit[] = {
709 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
710 show_therm_crit, set_therm_crit, 0+11),
711 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
712 show_therm_crit, set_therm_crit, 1+11),
713 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
714 show_therm_crit, set_therm_crit, 2+11),
717 #define THERM_UNIT_ATTRS(X) \
718 &therm_input[X].dev_attr.attr, \
719 &therm_status[X].dev_attr.attr, \
720 &therm_min[X].dev_attr.attr, \
721 &therm_max[X].dev_attr.attr, \
722 &therm_crit[X].dev_attr.attr
724 static struct attribute * pc8736x_therm_attr_array[] = {
730 static const struct attribute_group pc8736x_therm_group = {
731 .attrs = pc8736x_therm_attr_array,
734 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
736 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
737 struct pc87360_data *data = pc87360_update_device(dev);
738 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
740 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
742 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
743 struct pc87360_data *data = pc87360_update_device(dev);
744 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
746 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
748 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
749 struct pc87360_data *data = pc87360_update_device(dev);
750 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
752 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
754 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
755 struct pc87360_data *data = pc87360_update_device(dev);
756 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
758 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
760 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
761 struct pc87360_data *data = pc87360_update_device(dev);
762 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
764 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
767 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
768 struct pc87360_data *data = dev_get_drvdata(dev);
769 long val = simple_strtol(buf, NULL, 10);
771 mutex_lock(&data->update_lock);
772 data->temp_min[attr->index] = TEMP_TO_REG(val);
773 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
774 data->temp_min[attr->index]);
775 mutex_unlock(&data->update_lock);
778 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
781 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
782 struct pc87360_data *data = dev_get_drvdata(dev);
783 long val = simple_strtol(buf, NULL, 10);
785 mutex_lock(&data->update_lock);
786 data->temp_max[attr->index] = TEMP_TO_REG(val);
787 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
788 data->temp_max[attr->index]);
789 mutex_unlock(&data->update_lock);
792 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
795 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
796 struct pc87360_data *data = dev_get_drvdata(dev);
797 long val = simple_strtol(buf, NULL, 10);
799 mutex_lock(&data->update_lock);
800 data->temp_crit[attr->index] = TEMP_TO_REG(val);
801 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
802 data->temp_crit[attr->index]);
803 mutex_unlock(&data->update_lock);
807 static struct sensor_device_attribute temp_input[] = {
808 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
809 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
810 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
812 static struct sensor_device_attribute temp_status[] = {
813 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
814 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
815 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
817 static struct sensor_device_attribute temp_min[] = {
818 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
819 show_temp_min, set_temp_min, 0),
820 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
821 show_temp_min, set_temp_min, 1),
822 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
823 show_temp_min, set_temp_min, 2),
825 static struct sensor_device_attribute temp_max[] = {
826 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
827 show_temp_max, set_temp_max, 0),
828 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
829 show_temp_max, set_temp_max, 1),
830 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
831 show_temp_max, set_temp_max, 2),
833 static struct sensor_device_attribute temp_crit[] = {
834 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
835 show_temp_crit, set_temp_crit, 0),
836 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
837 show_temp_crit, set_temp_crit, 1),
838 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
839 show_temp_crit, set_temp_crit, 2),
842 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
844 struct pc87360_data *data = pc87360_update_device(dev);
845 return sprintf(buf, "%u\n", data->temp_alarms);
847 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
849 /* show_temp_min/max_alarm() reads data from the per-channel status
850 register (sec 12.3.7), not the temp event status registers (sec
851 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */
853 static ssize_t show_temp_min_alarm(struct device *dev,
854 struct device_attribute *devattr, char *buf)
856 struct pc87360_data *data = pc87360_update_device(dev);
857 unsigned nr = to_sensor_dev_attr(devattr)->index;
859 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
861 static ssize_t show_temp_max_alarm(struct device *dev,
862 struct device_attribute *devattr, char *buf)
864 struct pc87360_data *data = pc87360_update_device(dev);
865 unsigned nr = to_sensor_dev_attr(devattr)->index;
867 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
869 static ssize_t show_temp_crit_alarm(struct device *dev,
870 struct device_attribute *devattr, char *buf)
872 struct pc87360_data *data = pc87360_update_device(dev);
873 unsigned nr = to_sensor_dev_attr(devattr)->index;
875 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
878 static struct sensor_device_attribute temp_min_alarm[] = {
879 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
880 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
881 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
883 static struct sensor_device_attribute temp_max_alarm[] = {
884 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
885 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
886 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
888 static struct sensor_device_attribute temp_crit_alarm[] = {
889 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
890 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
891 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
894 #define TEMP_FAULT 0x40 /* open diode */
895 static ssize_t show_temp_fault(struct device *dev,
896 struct device_attribute *devattr, char *buf)
898 struct pc87360_data *data = pc87360_update_device(dev);
899 unsigned nr = to_sensor_dev_attr(devattr)->index;
901 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
903 static struct sensor_device_attribute temp_fault[] = {
904 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
905 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
906 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
909 #define TEMP_UNIT_ATTRS(X) \
910 &temp_input[X].dev_attr.attr, \
911 &temp_status[X].dev_attr.attr, \
912 &temp_min[X].dev_attr.attr, \
913 &temp_max[X].dev_attr.attr, \
914 &temp_crit[X].dev_attr.attr, \
915 &temp_min_alarm[X].dev_attr.attr, \
916 &temp_max_alarm[X].dev_attr.attr, \
917 &temp_crit_alarm[X].dev_attr.attr, \
918 &temp_fault[X].dev_attr.attr
920 static struct attribute * pc8736x_temp_attr_array[] = {
924 /* include the few miscellaneous atts here */
925 &dev_attr_alarms_temp.attr,
928 static const struct attribute_group pc8736x_temp_group = {
929 .attrs = pc8736x_temp_attr_array,
932 static ssize_t show_name(struct device *dev,
933 struct device_attribute *devattr, char *buf)
935 struct pc87360_data *data = dev_get_drvdata(dev);
936 return sprintf(buf, "%s\n", data->name);
938 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
941 * Device detection, registration and update
944 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
948 int nrdev; /* logical device count */
950 /* No superio_enter */
952 /* Identify device */
953 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
955 case 0xE1: /* PC87360 */
956 case 0xE8: /* PC87363 */
957 case 0xE4: /* PC87364 */
960 case 0xE5: /* PC87365 */
961 case 0xE9: /* PC87366 */
965 superio_exit(sioaddr);
968 /* Remember the device id */
971 for (i = 0; i < nrdev; i++) {
972 /* select logical device */
973 superio_outb(sioaddr, DEV, logdev[i]);
975 val = superio_inb(sioaddr, ACT);
977 printk(KERN_INFO "pc87360: Device 0x%02x not "
978 "activated\n", logdev[i]);
982 val = (superio_inb(sioaddr, BASE) << 8)
983 | superio_inb(sioaddr, BASE + 1);
985 printk(KERN_INFO "pc87360: Base address not set for "
986 "device 0x%02x\n", logdev[i]);
992 if (i==0) { /* Fans */
993 confreg[0] = superio_inb(sioaddr, 0xF0);
994 confreg[1] = superio_inb(sioaddr, 0xF1);
997 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
998 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
999 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
1000 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
1001 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
1002 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
1003 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
1004 "ctrl=%d inv=%d\n", confreg[1]&1,
1005 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
1007 } else if (i==1) { /* Voltages */
1008 /* Are we using thermistors? */
1009 if (*devid == 0xE9) { /* PC87366 */
1010 /* These registers are not logical-device
1011 specific, just that we won't need them if
1012 we don't use the VLM device */
1013 confreg[2] = superio_inb(sioaddr, 0x2B);
1014 confreg[3] = superio_inb(sioaddr, 0x25);
1016 if (confreg[2] & 0x40) {
1017 printk(KERN_INFO "pc87360: Using "
1018 "thermistors for temperature "
1021 if (confreg[3] & 0xE0) {
1022 printk(KERN_INFO "pc87360: VID "
1023 "inputs routed (mode %u)\n",
1030 superio_exit(sioaddr);
1034 static int __devinit pc87360_probe(struct platform_device *pdev)
1037 struct pc87360_data *data;
1039 const char *name = "pc87360";
1040 int use_thermistors = 0;
1041 struct device *dev = &pdev->dev;
1043 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1060 data->fannr = extra_isa[0] ? 3 : 0;
1061 data->innr = extra_isa[1] ? 11 : 0;
1062 data->tempnr = extra_isa[2] ? 2 : 0;
1066 data->fannr = extra_isa[0] ? 3 : 0;
1067 data->innr = extra_isa[1] ? 14 : 0;
1068 data->tempnr = extra_isa[2] ? 3 : 0;
1074 mutex_init(&data->lock);
1075 mutex_init(&data->update_lock);
1076 platform_set_drvdata(pdev, data);
1078 for (i = 0; i < LDNI_MAX; i++) {
1079 if (((data->address[i] = extra_isa[i]))
1080 && !request_region(extra_isa[i], PC87360_EXTENT,
1081 pc87360_driver.driver.name)) {
1082 dev_err(dev, "Region 0x%x-0x%x already "
1083 "in use!\n", extra_isa[i],
1084 extra_isa[i]+PC87360_EXTENT-1);
1085 for (i--; i >= 0; i--)
1086 release_region(extra_isa[i], PC87360_EXTENT);
1092 /* Retrieve the fans configuration from Super-I/O space */
1094 data->fan_conf = confreg[0] | (confreg[1] << 8);
1096 /* Use the correct reference voltage
1097 Unless both the VLM and the TMS logical devices agree to
1098 use an external Vref, the internal one is used. */
1100 i = pc87360_read_value(data, LD_IN, NO_BANK,
1101 PC87365_REG_IN_CONFIG);
1103 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1104 PC87365_REG_TEMP_CONFIG);
1106 data->in_vref = (i&0x02) ? 3025 : 2966;
1107 dev_dbg(dev, "Using %s reference voltage\n",
1108 (i&0x02) ? "external" : "internal");
1110 data->vid_conf = confreg[3];
1111 data->vrm = vid_which_vrm();
1114 /* Fan clock dividers may be needed before any data is read */
1115 for (i = 0; i < data->fannr; i++) {
1116 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1117 data->fan_status[i] = pc87360_read_value(data,
1119 PC87360_REG_FAN_STATUS(i));
1123 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1124 use_thermistors = confreg[2] & 0x40;
1126 pc87360_init_device(pdev, use_thermistors);
1129 /* Register all-or-nothing sysfs groups */
1132 (err = sysfs_create_group(&dev->kobj,
1133 &pc8736x_vin_group)))
1136 if (data->innr == 14 &&
1137 (err = sysfs_create_group(&dev->kobj,
1138 &pc8736x_therm_group)))
1141 /* create device attr-files for varying sysfs groups */
1144 for (i = 0; i < data->tempnr; i++) {
1145 if ((err = device_create_file(dev,
1146 &temp_input[i].dev_attr))
1147 || (err = device_create_file(dev,
1148 &temp_min[i].dev_attr))
1149 || (err = device_create_file(dev,
1150 &temp_max[i].dev_attr))
1151 || (err = device_create_file(dev,
1152 &temp_crit[i].dev_attr))
1153 || (err = device_create_file(dev,
1154 &temp_status[i].dev_attr))
1155 || (err = device_create_file(dev,
1156 &temp_min_alarm[i].dev_attr))
1157 || (err = device_create_file(dev,
1158 &temp_max_alarm[i].dev_attr))
1159 || (err = device_create_file(dev,
1160 &temp_crit_alarm[i].dev_attr))
1161 || (err = device_create_file(dev,
1162 &temp_fault[i].dev_attr)))
1165 if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1169 for (i = 0; i < data->fannr; i++) {
1170 if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1171 && ((err = device_create_file(dev,
1172 &fan_input[i].dev_attr))
1173 || (err = device_create_file(dev,
1174 &fan_min[i].dev_attr))
1175 || (err = device_create_file(dev,
1176 &fan_div[i].dev_attr))
1177 || (err = device_create_file(dev,
1178 &fan_status[i].dev_attr))))
1181 if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1182 && (err = device_create_file(dev, &pwm[i].dev_attr)))
1186 if ((err = device_create_file(dev, &dev_attr_name)))
1189 data->hwmon_dev = hwmon_device_register(dev);
1190 if (IS_ERR(data->hwmon_dev)) {
1191 err = PTR_ERR(data->hwmon_dev);
1197 device_remove_file(dev, &dev_attr_name);
1198 /* can still remove groups whose members were added individually */
1199 sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1200 sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1201 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1202 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1203 for (i = 0; i < 3; i++) {
1204 if (data->address[i]) {
1205 release_region(data->address[i], PC87360_EXTENT);
1213 static int __devexit pc87360_remove(struct platform_device *pdev)
1215 struct pc87360_data *data = platform_get_drvdata(pdev);
1218 hwmon_device_unregister(data->hwmon_dev);
1220 device_remove_file(&pdev->dev, &dev_attr_name);
1221 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1222 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1223 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1224 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1226 for (i = 0; i < 3; i++) {
1227 if (data->address[i]) {
1228 release_region(data->address[i], PC87360_EXTENT);
1236 /* ldi is the logical device index
1237 bank is for voltages and temperatures only */
1238 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1243 mutex_lock(&(data->lock));
1244 if (bank != NO_BANK)
1245 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1246 res = inb_p(data->address[ldi] + reg);
1247 mutex_unlock(&(data->lock));
1252 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1255 mutex_lock(&(data->lock));
1256 if (bank != NO_BANK)
1257 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1258 outb_p(value, data->address[ldi] + reg);
1259 mutex_unlock(&(data->lock));
1262 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1263 #define CHAN_CNVRTD 0x80 /* new data ready */
1264 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1265 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1266 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1268 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1269 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1270 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1272 static void pc87360_init_device(struct platform_device *pdev,
1273 int use_thermistors)
1275 struct pc87360_data *data = platform_get_drvdata(pdev);
1277 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1278 const u8 init_temp[3] = { 2, 2, 1 };
1281 if (init >= 2 && data->innr) {
1282 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1283 PC87365_REG_IN_CONVRATE);
1284 dev_info(&pdev->dev, "VLM conversion set to "
1285 "1s period, 160us delay\n");
1286 pc87360_write_value(data, LD_IN, NO_BANK,
1287 PC87365_REG_IN_CONVRATE,
1288 (reg & 0xC0) | 0x11);
1291 nr = data->innr < 11 ? data->innr : 11;
1292 for (i = 0; i < nr; i++) {
1293 if (init >= init_in[i]) {
1294 /* Forcibly enable voltage channel */
1295 reg = pc87360_read_value(data, LD_IN, i,
1296 PC87365_REG_IN_STATUS);
1297 if (!(reg & CHAN_ENA)) {
1298 dev_dbg(&pdev->dev, "Forcibly "
1299 "enabling in%d\n", i);
1300 pc87360_write_value(data, LD_IN, i,
1301 PC87365_REG_IN_STATUS,
1302 (reg & 0x68) | 0x87);
1307 /* We can't blindly trust the Super-I/O space configuration bit,
1308 most BIOS won't set it properly */
1309 for (i = 11; i < data->innr; i++) {
1310 reg = pc87360_read_value(data, LD_IN, i,
1311 PC87365_REG_TEMP_STATUS);
1312 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1315 i = use_thermistors ? 2 : 0;
1316 for (; i < data->tempnr; i++) {
1317 if (init >= init_temp[i]) {
1318 /* Forcibly enable temperature channel */
1319 reg = pc87360_read_value(data, LD_TEMP, i,
1320 PC87365_REG_TEMP_STATUS);
1321 if (!(reg & CHAN_ENA)) {
1322 dev_dbg(&pdev->dev, "Forcibly "
1323 "enabling temp%d\n", i+1);
1324 pc87360_write_value(data, LD_TEMP, i,
1325 PC87365_REG_TEMP_STATUS,
1331 if (use_thermistors) {
1332 for (i = 11; i < data->innr; i++) {
1333 if (init >= init_in[i]) {
1334 /* The pin may already be used by thermal
1336 reg = pc87360_read_value(data, LD_TEMP,
1337 (i-11)/2, PC87365_REG_TEMP_STATUS);
1338 if (reg & CHAN_ENA) {
1339 dev_dbg(&pdev->dev, "Skipping "
1340 "temp%d, pin already in use "
1341 "by temp%d\n", i-7, (i-11)/2);
1345 /* Forcibly enable thermistor channel */
1346 reg = pc87360_read_value(data, LD_IN, i,
1347 PC87365_REG_IN_STATUS);
1348 if (!(reg & CHAN_ENA)) {
1349 dev_dbg(&pdev->dev, "Forcibly "
1350 "enabling temp%d\n", i-7);
1351 pc87360_write_value(data, LD_IN, i,
1352 PC87365_REG_TEMP_STATUS,
1353 (reg & 0x60) | 0x8F);
1360 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1361 PC87365_REG_IN_CONFIG);
1362 if (reg & CHAN_ENA) {
1363 dev_dbg(&pdev->dev, "Forcibly "
1364 "enabling monitoring (VLM)\n");
1365 pc87360_write_value(data, LD_IN, NO_BANK,
1366 PC87365_REG_IN_CONFIG,
1372 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1373 PC87365_REG_TEMP_CONFIG);
1374 if (reg & CHAN_ENA) {
1375 dev_dbg(&pdev->dev, "Forcibly enabling "
1376 "monitoring (TMS)\n");
1377 pc87360_write_value(data, LD_TEMP, NO_BANK,
1378 PC87365_REG_TEMP_CONFIG,
1383 /* Chip config as documented by National Semi. */
1384 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1385 /* We voluntarily omit the bank here, in case the
1386 sequence itself matters. It shouldn't be a problem,
1387 since nobody else is supposed to access the
1388 device at that point. */
1389 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1390 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1391 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1392 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1397 static void pc87360_autodiv(struct device *dev, int nr)
1399 struct pc87360_data *data = dev_get_drvdata(dev);
1400 u8 old_min = data->fan_min[nr];
1402 /* Increase clock divider if needed and possible */
1403 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1404 || (data->fan[nr] >= 224)) { /* next to overflow */
1405 if ((data->fan_status[nr] & 0x60) != 0x60) {
1406 data->fan_status[nr] += 0x20;
1407 data->fan_min[nr] >>= 1;
1408 data->fan[nr] >>= 1;
1409 dev_dbg(dev, "Increasing "
1410 "clock divider to %d for fan %d\n",
1411 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1414 /* Decrease clock divider if possible */
1415 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1416 && data->fan[nr] < 85 /* bad accuracy */
1417 && (data->fan_status[nr] & 0x60) != 0x00) {
1418 data->fan_status[nr] -= 0x20;
1419 data->fan_min[nr] <<= 1;
1420 data->fan[nr] <<= 1;
1421 dev_dbg(dev, "Decreasing "
1422 "clock divider to %d for fan %d\n",
1423 FAN_DIV_FROM_REG(data->fan_status[nr]),
1428 /* Write new fan min if it changed */
1429 if (old_min != data->fan_min[nr]) {
1430 pc87360_write_value(data, LD_FAN, NO_BANK,
1431 PC87360_REG_FAN_MIN(nr),
1436 static struct pc87360_data *pc87360_update_device(struct device *dev)
1438 struct pc87360_data *data = dev_get_drvdata(dev);
1441 mutex_lock(&data->update_lock);
1443 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1444 dev_dbg(dev, "Data update\n");
1447 for (i = 0; i < data->fannr; i++) {
1448 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1449 data->fan_status[i] =
1450 pc87360_read_value(data, LD_FAN,
1451 NO_BANK, PC87360_REG_FAN_STATUS(i));
1452 data->fan[i] = pc87360_read_value(data, LD_FAN,
1453 NO_BANK, PC87360_REG_FAN(i));
1454 data->fan_min[i] = pc87360_read_value(data,
1456 PC87360_REG_FAN_MIN(i));
1457 /* Change clock divider if needed */
1458 pc87360_autodiv(dev, i);
1459 /* Clear bits and write new divider */
1460 pc87360_write_value(data, LD_FAN, NO_BANK,
1461 PC87360_REG_FAN_STATUS(i),
1462 data->fan_status[i]);
1464 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1465 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1466 NO_BANK, PC87360_REG_PWM(i));
1470 for (i = 0; i < data->innr; i++) {
1471 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1472 PC87365_REG_IN_STATUS);
1474 pc87360_write_value(data, LD_IN, i,
1475 PC87365_REG_IN_STATUS,
1476 data->in_status[i]);
1477 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1478 data->in[i] = pc87360_read_value(data, LD_IN,
1481 if (data->in_status[i] & CHAN_ENA) {
1482 data->in_min[i] = pc87360_read_value(data,
1484 PC87365_REG_IN_MIN);
1485 data->in_max[i] = pc87360_read_value(data,
1487 PC87365_REG_IN_MAX);
1489 data->in_crit[i-11] =
1490 pc87360_read_value(data, LD_IN,
1491 i, PC87365_REG_TEMP_CRIT);
1495 data->in_alarms = pc87360_read_value(data, LD_IN,
1496 NO_BANK, PC87365_REG_IN_ALARMS1)
1497 | ((pc87360_read_value(data, LD_IN,
1498 NO_BANK, PC87365_REG_IN_ALARMS2)
1500 data->vid = (data->vid_conf & 0xE0) ?
1501 pc87360_read_value(data, LD_IN,
1502 NO_BANK, PC87365_REG_VID) : 0x1F;
1506 for (i = 0; i < data->tempnr; i++) {
1507 data->temp_status[i] = pc87360_read_value(data,
1509 PC87365_REG_TEMP_STATUS);
1511 pc87360_write_value(data, LD_TEMP, i,
1512 PC87365_REG_TEMP_STATUS,
1513 data->temp_status[i]);
1514 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1515 data->temp[i] = pc87360_read_value(data,
1519 if (data->temp_status[i] & CHAN_ENA) {
1520 data->temp_min[i] = pc87360_read_value(data,
1522 PC87365_REG_TEMP_MIN);
1523 data->temp_max[i] = pc87360_read_value(data,
1525 PC87365_REG_TEMP_MAX);
1526 data->temp_crit[i] = pc87360_read_value(data,
1528 PC87365_REG_TEMP_CRIT);
1532 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1533 NO_BANK, PC87365_REG_TEMP_ALARMS)
1537 data->last_updated = jiffies;
1541 mutex_unlock(&data->update_lock);
1546 static int __init pc87360_device_add(unsigned short address)
1548 struct resource res = {
1550 .flags = IORESOURCE_IO,
1554 pdev = platform_device_alloc("pc87360", address);
1557 printk(KERN_ERR "pc87360: Device allocation failed\n");
1561 for (i = 0; i < 3; i++) {
1564 res.start = extra_isa[i];
1565 res.end = extra_isa[i] + PC87360_EXTENT - 1;
1566 err = platform_device_add_resources(pdev, &res, 1);
1568 printk(KERN_ERR "pc87360: Device resource[%d] "
1569 "addition failed (%d)\n", i, err);
1570 goto exit_device_put;
1574 err = platform_device_add(pdev);
1576 printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
1578 goto exit_device_put;
1584 platform_device_put(pdev);
1589 static int __init pc87360_init(void)
1592 unsigned short address = 0;
1594 if (pc87360_find(0x2e, &devid, extra_isa)
1595 && pc87360_find(0x4e, &devid, extra_isa)) {
1596 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1597 "module not inserted.\n");
1601 /* Arbitrarily pick one of the addresses */
1602 for (i = 0; i < 3; i++) {
1603 if (extra_isa[i] != 0x0000) {
1604 address = extra_isa[i];
1609 if (address == 0x0000) {
1610 printk(KERN_WARNING "pc87360: No active logical device, "
1611 "module not inserted.\n");
1615 err = platform_driver_register(&pc87360_driver);
1619 /* Sets global pdev as a side effect */
1620 err = pc87360_device_add(address);
1627 platform_driver_unregister(&pc87360_driver);
1632 static void __exit pc87360_exit(void)
1634 platform_device_unregister(pdev);
1635 platform_driver_unregister(&pc87360_driver);
1639 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1640 MODULE_DESCRIPTION("PC8736x hardware monitor");
1641 MODULE_LICENSE("GPL");
1643 module_init(pc87360_init);
1644 module_exit(pc87360_exit);