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 */
78 static const u8 logdev[3] = { FSCM, VLM, TMS };
84 static inline void superio_outb(int sioaddr, int reg, int val)
90 static inline int superio_inb(int sioaddr, int reg)
93 return inb(sioaddr+1);
96 static inline void superio_exit(int sioaddr)
99 outb(0x02, sioaddr+1);
106 #define PC87360_EXTENT 0x10
107 #define PC87365_REG_BANK 0x09
111 * Fan registers and conversions
114 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
115 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
116 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
117 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
118 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
119 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
121 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
122 480000 / ((val)*(div)))
123 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
124 480000 / ((val)*(div)))
125 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
126 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
128 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
129 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
130 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
132 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
133 static inline u8 PWM_TO_REG(int val, int inv)
145 * Voltage registers and conversions
148 #define PC87365_REG_IN_CONVRATE 0x07
149 #define PC87365_REG_IN_CONFIG 0x08
150 #define PC87365_REG_IN 0x0B
151 #define PC87365_REG_IN_MIN 0x0D
152 #define PC87365_REG_IN_MAX 0x0C
153 #define PC87365_REG_IN_STATUS 0x0A
154 #define PC87365_REG_IN_ALARMS1 0x00
155 #define PC87365_REG_IN_ALARMS2 0x01
156 #define PC87365_REG_VID 0x06
158 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
159 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
160 (val)*256 >= (ref)*255 ? 255: \
161 ((val) * 256 + (ref)/2) / (ref))
164 * Temperature registers and conversions
167 #define PC87365_REG_TEMP_CONFIG 0x08
168 #define PC87365_REG_TEMP 0x0B
169 #define PC87365_REG_TEMP_MIN 0x0D
170 #define PC87365_REG_TEMP_MAX 0x0C
171 #define PC87365_REG_TEMP_CRIT 0x0E
172 #define PC87365_REG_TEMP_STATUS 0x0A
173 #define PC87365_REG_TEMP_ALARMS 0x00
175 #define TEMP_FROM_REG(val) ((val) * 1000)
176 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
177 (val) > 127000 ? 127 : \
178 (val) < 0 ? ((val) - 500) / 1000 : \
179 ((val) + 500) / 1000)
185 struct pc87360_data {
187 struct device *hwmon_dev;
189 struct mutex update_lock;
190 char valid; /* !=0 if following fields are valid */
191 unsigned long last_updated; /* In jiffies */
195 u8 fannr, innr, tempnr;
197 u8 fan[3]; /* Register value */
198 u8 fan_min[3]; /* Register value */
199 u8 fan_status[3]; /* Register value */
200 u8 pwm[3]; /* Register value */
201 u16 fan_conf; /* Configuration register values, combined */
203 u16 in_vref; /* 1 mV/bit */
204 u8 in[14]; /* Register value */
205 u8 in_min[14]; /* Register value */
206 u8 in_max[14]; /* Register value */
207 u8 in_crit[3]; /* Register value */
208 u8 in_status[14]; /* Register value */
209 u16 in_alarms; /* Register values, combined, masked */
210 u8 vid_conf; /* Configuration register value */
212 u8 vid; /* Register value */
214 s8 temp[3]; /* Register value */
215 s8 temp_min[3]; /* Register value */
216 s8 temp_max[3]; /* Register value */
217 s8 temp_crit[3]; /* Register value */
218 u8 temp_status[3]; /* Register value */
219 u8 temp_alarms; /* Register value, masked */
223 * Functions declaration
226 static int pc87360_probe(struct platform_device *pdev);
227 static int __devexit pc87360_remove(struct platform_device *pdev);
229 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
231 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
233 static void pc87360_init_device(struct platform_device *pdev,
234 int use_thermistors);
235 static struct pc87360_data *pc87360_update_device(struct device *dev);
241 static struct platform_driver pc87360_driver = {
243 .owner = THIS_MODULE,
246 .probe = pc87360_probe,
247 .remove = __devexit_p(pc87360_remove),
254 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
256 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
257 struct pc87360_data *data = pc87360_update_device(dev);
258 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
259 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
261 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
263 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
264 struct pc87360_data *data = pc87360_update_device(dev);
265 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
266 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
268 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
270 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
271 struct pc87360_data *data = pc87360_update_device(dev);
272 return sprintf(buf, "%u\n",
273 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
275 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
277 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
278 struct pc87360_data *data = pc87360_update_device(dev);
279 return sprintf(buf, "%u\n",
280 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
282 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
285 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
286 struct pc87360_data *data = dev_get_drvdata(dev);
287 long fan_min = simple_strtol(buf, NULL, 10);
289 mutex_lock(&data->update_lock);
290 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
292 /* If it wouldn't fit, change clock divisor */
294 && (data->fan_status[attr->index] & 0x60) != 0x60) {
296 data->fan[attr->index] >>= 1;
297 data->fan_status[attr->index] += 0x20;
299 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
300 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
301 data->fan_min[attr->index]);
303 /* Write new divider, preserve alarm bits */
304 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
305 data->fan_status[attr->index] & 0xF9);
306 mutex_unlock(&data->update_lock);
311 static struct sensor_device_attribute fan_input[] = {
312 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
313 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
314 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
316 static struct sensor_device_attribute fan_status[] = {
317 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
318 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
319 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
321 static struct sensor_device_attribute fan_div[] = {
322 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
323 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
324 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
326 static struct sensor_device_attribute fan_min[] = {
327 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
328 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
329 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
332 #define FAN_UNIT_ATTRS(X) \
333 &fan_input[X].dev_attr.attr, \
334 &fan_status[X].dev_attr.attr, \
335 &fan_div[X].dev_attr.attr, \
336 &fan_min[X].dev_attr.attr
338 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
340 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
341 struct pc87360_data *data = pc87360_update_device(dev);
342 return sprintf(buf, "%u\n",
343 PWM_FROM_REG(data->pwm[attr->index],
344 FAN_CONFIG_INVERT(data->fan_conf,
347 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
350 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
351 struct pc87360_data *data = dev_get_drvdata(dev);
352 long val = simple_strtol(buf, NULL, 10);
354 mutex_lock(&data->update_lock);
355 data->pwm[attr->index] = PWM_TO_REG(val,
356 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
357 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
358 data->pwm[attr->index]);
359 mutex_unlock(&data->update_lock);
363 static struct sensor_device_attribute pwm[] = {
364 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
365 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
366 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
369 static struct attribute * pc8736x_fan_attr_array[] = {
373 &pwm[0].dev_attr.attr,
374 &pwm[1].dev_attr.attr,
375 &pwm[2].dev_attr.attr,
378 static const struct attribute_group pc8736x_fan_group = {
379 .attrs = pc8736x_fan_attr_array,
382 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
384 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
385 struct pc87360_data *data = pc87360_update_device(dev);
386 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
389 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
391 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
392 struct pc87360_data *data = pc87360_update_device(dev);
393 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
396 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
398 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
399 struct pc87360_data *data = pc87360_update_device(dev);
400 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
403 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
405 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
406 struct pc87360_data *data = pc87360_update_device(dev);
407 return sprintf(buf, "%u\n", data->in_status[attr->index]);
409 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
412 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
413 struct pc87360_data *data = dev_get_drvdata(dev);
414 long val = simple_strtol(buf, NULL, 10);
416 mutex_lock(&data->update_lock);
417 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
418 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
419 data->in_min[attr->index]);
420 mutex_unlock(&data->update_lock);
423 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
426 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
427 struct pc87360_data *data = dev_get_drvdata(dev);
428 long val = simple_strtol(buf, NULL, 10);
430 mutex_lock(&data->update_lock);
431 data->in_max[attr->index] = IN_TO_REG(val,
433 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
434 data->in_max[attr->index]);
435 mutex_unlock(&data->update_lock);
439 static struct sensor_device_attribute in_input[] = {
440 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
441 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
442 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
443 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
444 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
445 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
446 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
447 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
448 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
449 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
450 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
452 static struct sensor_device_attribute in_status[] = {
453 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
454 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
455 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
456 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
457 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
458 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
459 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
460 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
461 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
462 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
463 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
465 static struct sensor_device_attribute in_min[] = {
466 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
467 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
468 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
469 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
470 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
471 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
472 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
473 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
474 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
475 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
476 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
478 static struct sensor_device_attribute in_max[] = {
479 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
480 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
481 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
482 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
483 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
484 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
485 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
486 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
487 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
488 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
489 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
492 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
493 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
494 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
495 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
497 #define VIN_UNIT_ATTRS(X) \
498 &in_input[X].dev_attr.attr, \
499 &in_status[X].dev_attr.attr, \
500 &in_min[X].dev_attr.attr, \
501 &in_max[X].dev_attr.attr
503 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
505 struct pc87360_data *data = pc87360_update_device(dev);
506 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
508 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
510 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
512 struct pc87360_data *data = dev_get_drvdata(dev);
513 return sprintf(buf, "%u\n", data->vrm);
515 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
517 struct pc87360_data *data = dev_get_drvdata(dev);
518 data->vrm = simple_strtoul(buf, NULL, 10);
521 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
523 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
525 struct pc87360_data *data = pc87360_update_device(dev);
526 return sprintf(buf, "%u\n", data->in_alarms);
528 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
530 static struct attribute *pc8736x_vin_attr_array[] = {
542 &dev_attr_cpu0_vid.attr,
544 &dev_attr_alarms_in.attr,
547 static const struct attribute_group pc8736x_vin_group = {
548 .attrs = pc8736x_vin_attr_array,
551 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
553 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
554 struct pc87360_data *data = pc87360_update_device(dev);
555 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
558 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
560 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
561 struct pc87360_data *data = pc87360_update_device(dev);
562 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
565 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
567 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
568 struct pc87360_data *data = pc87360_update_device(dev);
569 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
572 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
574 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
575 struct pc87360_data *data = pc87360_update_device(dev);
576 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
579 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
581 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
582 struct pc87360_data *data = pc87360_update_device(dev);
583 return sprintf(buf, "%u\n", data->in_status[attr->index]);
585 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
588 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
589 struct pc87360_data *data = dev_get_drvdata(dev);
590 long val = simple_strtol(buf, NULL, 10);
592 mutex_lock(&data->update_lock);
593 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
594 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
595 data->in_min[attr->index]);
596 mutex_unlock(&data->update_lock);
599 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
602 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
603 struct pc87360_data *data = dev_get_drvdata(dev);
604 long val = simple_strtol(buf, NULL, 10);
606 mutex_lock(&data->update_lock);
607 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
608 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
609 data->in_max[attr->index]);
610 mutex_unlock(&data->update_lock);
613 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
616 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
617 struct pc87360_data *data = dev_get_drvdata(dev);
618 long val = simple_strtol(buf, NULL, 10);
620 mutex_lock(&data->update_lock);
621 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
622 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
623 data->in_crit[attr->index-11]);
624 mutex_unlock(&data->update_lock);
628 /* the +11 term below reflects the fact that VLM units 11,12,13 are
629 used in the chip to measure voltage across the thermistors
631 static struct sensor_device_attribute therm_input[] = {
632 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
633 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
634 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
636 static struct sensor_device_attribute therm_status[] = {
637 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
638 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
639 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
641 static struct sensor_device_attribute therm_min[] = {
642 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
643 show_therm_min, set_therm_min, 0+11),
644 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
645 show_therm_min, set_therm_min, 1+11),
646 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
647 show_therm_min, set_therm_min, 2+11),
649 static struct sensor_device_attribute therm_max[] = {
650 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
651 show_therm_max, set_therm_max, 0+11),
652 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
653 show_therm_max, set_therm_max, 1+11),
654 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
655 show_therm_max, set_therm_max, 2+11),
657 static struct sensor_device_attribute therm_crit[] = {
658 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
659 show_therm_crit, set_therm_crit, 0+11),
660 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
661 show_therm_crit, set_therm_crit, 1+11),
662 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
663 show_therm_crit, set_therm_crit, 2+11),
666 #define THERM_UNIT_ATTRS(X) \
667 &therm_input[X].dev_attr.attr, \
668 &therm_status[X].dev_attr.attr, \
669 &therm_min[X].dev_attr.attr, \
670 &therm_max[X].dev_attr.attr, \
671 &therm_crit[X].dev_attr.attr
673 static struct attribute * pc8736x_therm_attr_array[] = {
679 static const struct attribute_group pc8736x_therm_group = {
680 .attrs = pc8736x_therm_attr_array,
683 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
685 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
686 struct pc87360_data *data = pc87360_update_device(dev);
687 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
689 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
691 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
692 struct pc87360_data *data = pc87360_update_device(dev);
693 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
695 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
697 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
698 struct pc87360_data *data = pc87360_update_device(dev);
699 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
701 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
703 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
704 struct pc87360_data *data = pc87360_update_device(dev);
705 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
707 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
709 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
710 struct pc87360_data *data = pc87360_update_device(dev);
711 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
713 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
716 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
717 struct pc87360_data *data = dev_get_drvdata(dev);
718 long val = simple_strtol(buf, NULL, 10);
720 mutex_lock(&data->update_lock);
721 data->temp_min[attr->index] = TEMP_TO_REG(val);
722 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
723 data->temp_min[attr->index]);
724 mutex_unlock(&data->update_lock);
727 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
730 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
731 struct pc87360_data *data = dev_get_drvdata(dev);
732 long val = simple_strtol(buf, NULL, 10);
734 mutex_lock(&data->update_lock);
735 data->temp_max[attr->index] = TEMP_TO_REG(val);
736 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
737 data->temp_max[attr->index]);
738 mutex_unlock(&data->update_lock);
741 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
744 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
745 struct pc87360_data *data = dev_get_drvdata(dev);
746 long val = simple_strtol(buf, NULL, 10);
748 mutex_lock(&data->update_lock);
749 data->temp_crit[attr->index] = TEMP_TO_REG(val);
750 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
751 data->temp_crit[attr->index]);
752 mutex_unlock(&data->update_lock);
756 static struct sensor_device_attribute temp_input[] = {
757 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
758 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
759 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
761 static struct sensor_device_attribute temp_status[] = {
762 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
763 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
764 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
766 static struct sensor_device_attribute temp_min[] = {
767 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
768 show_temp_min, set_temp_min, 0),
769 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
770 show_temp_min, set_temp_min, 1),
771 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
772 show_temp_min, set_temp_min, 2),
774 static struct sensor_device_attribute temp_max[] = {
775 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
776 show_temp_max, set_temp_max, 0),
777 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
778 show_temp_max, set_temp_max, 1),
779 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
780 show_temp_max, set_temp_max, 2),
782 static struct sensor_device_attribute temp_crit[] = {
783 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
784 show_temp_crit, set_temp_crit, 0),
785 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
786 show_temp_crit, set_temp_crit, 1),
787 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
788 show_temp_crit, set_temp_crit, 2),
791 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
793 struct pc87360_data *data = pc87360_update_device(dev);
794 return sprintf(buf, "%u\n", data->temp_alarms);
796 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
798 #define TEMP_UNIT_ATTRS(X) \
799 &temp_input[X].dev_attr.attr, \
800 &temp_status[X].dev_attr.attr, \
801 &temp_min[X].dev_attr.attr, \
802 &temp_max[X].dev_attr.attr, \
803 &temp_crit[X].dev_attr.attr
805 static struct attribute * pc8736x_temp_attr_array[] = {
809 /* include the few miscellaneous atts here */
810 &dev_attr_alarms_temp.attr,
813 static const struct attribute_group pc8736x_temp_group = {
814 .attrs = pc8736x_temp_attr_array,
817 static ssize_t show_name(struct device *dev, struct device_attribute
820 struct pc87360_data *data = dev_get_drvdata(dev);
821 return sprintf(buf, "%s\n", data->name);
823 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
826 * Device detection, registration and update
829 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
833 int nrdev; /* logical device count */
835 /* No superio_enter */
837 /* Identify device */
838 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
840 case 0xE1: /* PC87360 */
841 case 0xE8: /* PC87363 */
842 case 0xE4: /* PC87364 */
845 case 0xE5: /* PC87365 */
846 case 0xE9: /* PC87366 */
850 superio_exit(sioaddr);
853 /* Remember the device id */
856 for (i = 0; i < nrdev; i++) {
857 /* select logical device */
858 superio_outb(sioaddr, DEV, logdev[i]);
860 val = superio_inb(sioaddr, ACT);
862 printk(KERN_INFO "pc87360: Device 0x%02x not "
863 "activated\n", logdev[i]);
867 val = (superio_inb(sioaddr, BASE) << 8)
868 | superio_inb(sioaddr, BASE + 1);
870 printk(KERN_INFO "pc87360: Base address not set for "
871 "device 0x%02x\n", logdev[i]);
877 if (i==0) { /* Fans */
878 confreg[0] = superio_inb(sioaddr, 0xF0);
879 confreg[1] = superio_inb(sioaddr, 0xF1);
882 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
883 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
884 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
885 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
886 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
887 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
888 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
889 "ctrl=%d inv=%d\n", confreg[1]&1,
890 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
892 } else if (i==1) { /* Voltages */
893 /* Are we using thermistors? */
894 if (*devid == 0xE9) { /* PC87366 */
895 /* These registers are not logical-device
896 specific, just that we won't need them if
897 we don't use the VLM device */
898 confreg[2] = superio_inb(sioaddr, 0x2B);
899 confreg[3] = superio_inb(sioaddr, 0x25);
901 if (confreg[2] & 0x40) {
902 printk(KERN_INFO "pc87360: Using "
903 "thermistors for temperature "
906 if (confreg[3] & 0xE0) {
907 printk(KERN_INFO "pc87360: VID "
908 "inputs routed (mode %u)\n",
915 superio_exit(sioaddr);
919 static int __devinit pc87360_probe(struct platform_device *pdev)
922 struct pc87360_data *data;
924 const char *name = "pc87360";
925 int use_thermistors = 0;
926 struct device *dev = &pdev->dev;
928 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
945 data->fannr = extra_isa[0] ? 3 : 0;
946 data->innr = extra_isa[1] ? 11 : 0;
947 data->tempnr = extra_isa[2] ? 2 : 0;
951 data->fannr = extra_isa[0] ? 3 : 0;
952 data->innr = extra_isa[1] ? 14 : 0;
953 data->tempnr = extra_isa[2] ? 3 : 0;
959 mutex_init(&data->lock);
960 mutex_init(&data->update_lock);
961 platform_set_drvdata(pdev, data);
963 for (i = 0; i < 3; i++) {
964 if (((data->address[i] = extra_isa[i]))
965 && !request_region(extra_isa[i], PC87360_EXTENT,
966 pc87360_driver.driver.name)) {
967 dev_err(dev, "Region 0x%x-0x%x already "
968 "in use!\n", extra_isa[i],
969 extra_isa[i]+PC87360_EXTENT-1);
970 for (i--; i >= 0; i--)
971 release_region(extra_isa[i], PC87360_EXTENT);
977 /* Retrieve the fans configuration from Super-I/O space */
979 data->fan_conf = confreg[0] | (confreg[1] << 8);
981 /* Use the correct reference voltage
982 Unless both the VLM and the TMS logical devices agree to
983 use an external Vref, the internal one is used. */
985 i = pc87360_read_value(data, LD_IN, NO_BANK,
986 PC87365_REG_IN_CONFIG);
988 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
989 PC87365_REG_TEMP_CONFIG);
991 data->in_vref = (i&0x02) ? 3025 : 2966;
992 dev_dbg(dev, "Using %s reference voltage\n",
993 (i&0x02) ? "external" : "internal");
995 data->vid_conf = confreg[3];
996 data->vrm = vid_which_vrm();
999 /* Fan clock dividers may be needed before any data is read */
1000 for (i = 0; i < data->fannr; i++) {
1001 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1002 data->fan_status[i] = pc87360_read_value(data,
1004 PC87360_REG_FAN_STATUS(i));
1008 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1009 use_thermistors = confreg[2] & 0x40;
1011 pc87360_init_device(pdev, use_thermistors);
1014 /* Register all-or-nothing sysfs groups */
1017 (err = sysfs_create_group(&dev->kobj,
1018 &pc8736x_vin_group)))
1021 if (data->innr == 14 &&
1022 (err = sysfs_create_group(&dev->kobj,
1023 &pc8736x_therm_group)))
1026 /* create device attr-files for varying sysfs groups */
1029 for (i = 0; i < data->tempnr; i++) {
1030 if ((err = device_create_file(dev,
1031 &temp_input[i].dev_attr))
1032 || (err = device_create_file(dev,
1033 &temp_min[i].dev_attr))
1034 || (err = device_create_file(dev,
1035 &temp_max[i].dev_attr))
1036 || (err = device_create_file(dev,
1037 &temp_crit[i].dev_attr))
1038 || (err = device_create_file(dev,
1039 &temp_status[i].dev_attr)))
1042 if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1046 for (i = 0; i < data->fannr; i++) {
1047 if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1048 && ((err = device_create_file(dev,
1049 &fan_input[i].dev_attr))
1050 || (err = device_create_file(dev,
1051 &fan_min[i].dev_attr))
1052 || (err = device_create_file(dev,
1053 &fan_div[i].dev_attr))
1054 || (err = device_create_file(dev,
1055 &fan_status[i].dev_attr))))
1058 if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1059 && (err = device_create_file(dev, &pwm[i].dev_attr)))
1063 if ((err = device_create_file(dev, &dev_attr_name)))
1066 data->hwmon_dev = hwmon_device_register(dev);
1067 if (IS_ERR(data->hwmon_dev)) {
1068 err = PTR_ERR(data->hwmon_dev);
1074 device_remove_file(dev, &dev_attr_name);
1075 /* can still remove groups whose members were added individually */
1076 sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1077 sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1078 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1079 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1080 for (i = 0; i < 3; i++) {
1081 if (data->address[i]) {
1082 release_region(data->address[i], PC87360_EXTENT);
1090 static int __devexit pc87360_remove(struct platform_device *pdev)
1092 struct pc87360_data *data = platform_get_drvdata(pdev);
1095 hwmon_device_unregister(data->hwmon_dev);
1097 device_remove_file(&pdev->dev, &dev_attr_name);
1098 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1099 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1100 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1101 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1103 for (i = 0; i < 3; i++) {
1104 if (data->address[i]) {
1105 release_region(data->address[i], PC87360_EXTENT);
1113 /* ldi is the logical device index
1114 bank is for voltages and temperatures only */
1115 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1120 mutex_lock(&(data->lock));
1121 if (bank != NO_BANK)
1122 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1123 res = inb_p(data->address[ldi] + reg);
1124 mutex_unlock(&(data->lock));
1129 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1132 mutex_lock(&(data->lock));
1133 if (bank != NO_BANK)
1134 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1135 outb_p(value, data->address[ldi] + reg);
1136 mutex_unlock(&(data->lock));
1139 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1140 #define CHAN_CNVRTD 0x80 /* new data ready */
1141 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1142 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1143 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1145 static void pc87360_init_device(struct platform_device *pdev,
1146 int use_thermistors)
1148 struct pc87360_data *data = platform_get_drvdata(pdev);
1150 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1151 const u8 init_temp[3] = { 2, 2, 1 };
1154 if (init >= 2 && data->innr) {
1155 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1156 PC87365_REG_IN_CONVRATE);
1157 dev_info(&pdev->dev, "VLM conversion set to "
1158 "1s period, 160us delay\n");
1159 pc87360_write_value(data, LD_IN, NO_BANK,
1160 PC87365_REG_IN_CONVRATE,
1161 (reg & 0xC0) | 0x11);
1164 nr = data->innr < 11 ? data->innr : 11;
1165 for (i = 0; i < nr; i++) {
1166 if (init >= init_in[i]) {
1167 /* Forcibly enable voltage channel */
1168 reg = pc87360_read_value(data, LD_IN, i,
1169 PC87365_REG_IN_STATUS);
1170 if (!(reg & CHAN_ENA)) {
1171 dev_dbg(&pdev->dev, "Forcibly "
1172 "enabling in%d\n", i);
1173 pc87360_write_value(data, LD_IN, i,
1174 PC87365_REG_IN_STATUS,
1175 (reg & 0x68) | 0x87);
1180 /* We can't blindly trust the Super-I/O space configuration bit,
1181 most BIOS won't set it properly */
1182 for (i = 11; i < data->innr; i++) {
1183 reg = pc87360_read_value(data, LD_IN, i,
1184 PC87365_REG_TEMP_STATUS);
1185 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1188 i = use_thermistors ? 2 : 0;
1189 for (; i < data->tempnr; i++) {
1190 if (init >= init_temp[i]) {
1191 /* Forcibly enable temperature channel */
1192 reg = pc87360_read_value(data, LD_TEMP, i,
1193 PC87365_REG_TEMP_STATUS);
1194 if (!(reg & CHAN_ENA)) {
1195 dev_dbg(&pdev->dev, "Forcibly "
1196 "enabling temp%d\n", i+1);
1197 pc87360_write_value(data, LD_TEMP, i,
1198 PC87365_REG_TEMP_STATUS,
1204 if (use_thermistors) {
1205 for (i = 11; i < data->innr; i++) {
1206 if (init >= init_in[i]) {
1207 /* The pin may already be used by thermal
1209 reg = pc87360_read_value(data, LD_TEMP,
1210 (i-11)/2, PC87365_REG_TEMP_STATUS);
1211 if (reg & CHAN_ENA) {
1212 dev_dbg(&pdev->dev, "Skipping "
1213 "temp%d, pin already in use "
1214 "by temp%d\n", i-7, (i-11)/2);
1218 /* Forcibly enable thermistor channel */
1219 reg = pc87360_read_value(data, LD_IN, i,
1220 PC87365_REG_IN_STATUS);
1221 if (!(reg & CHAN_ENA)) {
1222 dev_dbg(&pdev->dev, "Forcibly "
1223 "enabling temp%d\n", i-7);
1224 pc87360_write_value(data, LD_IN, i,
1225 PC87365_REG_TEMP_STATUS,
1226 (reg & 0x60) | 0x8F);
1233 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1234 PC87365_REG_IN_CONFIG);
1235 if (reg & CHAN_ENA) {
1236 dev_dbg(&pdev->dev, "Forcibly "
1237 "enabling monitoring (VLM)\n");
1238 pc87360_write_value(data, LD_IN, NO_BANK,
1239 PC87365_REG_IN_CONFIG,
1245 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1246 PC87365_REG_TEMP_CONFIG);
1247 if (reg & CHAN_ENA) {
1248 dev_dbg(&pdev->dev, "Forcibly enabling "
1249 "monitoring (TMS)\n");
1250 pc87360_write_value(data, LD_TEMP, NO_BANK,
1251 PC87365_REG_TEMP_CONFIG,
1256 /* Chip config as documented by National Semi. */
1257 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1258 /* We voluntarily omit the bank here, in case the
1259 sequence itself matters. It shouldn't be a problem,
1260 since nobody else is supposed to access the
1261 device at that point. */
1262 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1263 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1264 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1265 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1270 static void pc87360_autodiv(struct device *dev, int nr)
1272 struct pc87360_data *data = dev_get_drvdata(dev);
1273 u8 old_min = data->fan_min[nr];
1275 /* Increase clock divider if needed and possible */
1276 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1277 || (data->fan[nr] >= 224)) { /* next to overflow */
1278 if ((data->fan_status[nr] & 0x60) != 0x60) {
1279 data->fan_status[nr] += 0x20;
1280 data->fan_min[nr] >>= 1;
1281 data->fan[nr] >>= 1;
1282 dev_dbg(dev, "Increasing "
1283 "clock divider to %d for fan %d\n",
1284 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1287 /* Decrease clock divider if possible */
1288 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1289 && data->fan[nr] < 85 /* bad accuracy */
1290 && (data->fan_status[nr] & 0x60) != 0x00) {
1291 data->fan_status[nr] -= 0x20;
1292 data->fan_min[nr] <<= 1;
1293 data->fan[nr] <<= 1;
1294 dev_dbg(dev, "Decreasing "
1295 "clock divider to %d for fan %d\n",
1296 FAN_DIV_FROM_REG(data->fan_status[nr]),
1301 /* Write new fan min if it changed */
1302 if (old_min != data->fan_min[nr]) {
1303 pc87360_write_value(data, LD_FAN, NO_BANK,
1304 PC87360_REG_FAN_MIN(nr),
1309 static struct pc87360_data *pc87360_update_device(struct device *dev)
1311 struct pc87360_data *data = dev_get_drvdata(dev);
1314 mutex_lock(&data->update_lock);
1316 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1317 dev_dbg(dev, "Data update\n");
1320 for (i = 0; i < data->fannr; i++) {
1321 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1322 data->fan_status[i] =
1323 pc87360_read_value(data, LD_FAN,
1324 NO_BANK, PC87360_REG_FAN_STATUS(i));
1325 data->fan[i] = pc87360_read_value(data, LD_FAN,
1326 NO_BANK, PC87360_REG_FAN(i));
1327 data->fan_min[i] = pc87360_read_value(data,
1329 PC87360_REG_FAN_MIN(i));
1330 /* Change clock divider if needed */
1331 pc87360_autodiv(dev, i);
1332 /* Clear bits and write new divider */
1333 pc87360_write_value(data, LD_FAN, NO_BANK,
1334 PC87360_REG_FAN_STATUS(i),
1335 data->fan_status[i]);
1337 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1338 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1339 NO_BANK, PC87360_REG_PWM(i));
1343 for (i = 0; i < data->innr; i++) {
1344 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1345 PC87365_REG_IN_STATUS);
1347 pc87360_write_value(data, LD_IN, i,
1348 PC87365_REG_IN_STATUS,
1349 data->in_status[i]);
1350 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1351 data->in[i] = pc87360_read_value(data, LD_IN,
1354 if (data->in_status[i] & CHAN_ENA) {
1355 data->in_min[i] = pc87360_read_value(data,
1357 PC87365_REG_IN_MIN);
1358 data->in_max[i] = pc87360_read_value(data,
1360 PC87365_REG_IN_MAX);
1362 data->in_crit[i-11] =
1363 pc87360_read_value(data, LD_IN,
1364 i, PC87365_REG_TEMP_CRIT);
1368 data->in_alarms = pc87360_read_value(data, LD_IN,
1369 NO_BANK, PC87365_REG_IN_ALARMS1)
1370 | ((pc87360_read_value(data, LD_IN,
1371 NO_BANK, PC87365_REG_IN_ALARMS2)
1373 data->vid = (data->vid_conf & 0xE0) ?
1374 pc87360_read_value(data, LD_IN,
1375 NO_BANK, PC87365_REG_VID) : 0x1F;
1379 for (i = 0; i < data->tempnr; i++) {
1380 data->temp_status[i] = pc87360_read_value(data,
1382 PC87365_REG_TEMP_STATUS);
1384 pc87360_write_value(data, LD_TEMP, i,
1385 PC87365_REG_TEMP_STATUS,
1386 data->temp_status[i]);
1387 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1388 data->temp[i] = pc87360_read_value(data,
1392 if (data->temp_status[i] & CHAN_ENA) {
1393 data->temp_min[i] = pc87360_read_value(data,
1395 PC87365_REG_TEMP_MIN);
1396 data->temp_max[i] = pc87360_read_value(data,
1398 PC87365_REG_TEMP_MAX);
1399 data->temp_crit[i] = pc87360_read_value(data,
1401 PC87365_REG_TEMP_CRIT);
1405 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1406 NO_BANK, PC87365_REG_TEMP_ALARMS)
1410 data->last_updated = jiffies;
1414 mutex_unlock(&data->update_lock);
1419 static int __init pc87360_device_add(unsigned short address)
1421 struct resource res = {
1423 .flags = IORESOURCE_IO,
1427 pdev = platform_device_alloc("pc87360", address);
1430 printk(KERN_ERR "pc87360: Device allocation failed\n");
1434 for (i = 0; i < 3; i++) {
1437 res.start = extra_isa[i];
1438 res.end = extra_isa[i] + PC87360_EXTENT - 1;
1439 err = platform_device_add_resources(pdev, &res, 1);
1441 printk(KERN_ERR "pc87360: Device resource[%d] "
1442 "addition failed (%d)\n", i, err);
1443 goto exit_device_put;
1447 err = platform_device_add(pdev);
1449 printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
1451 goto exit_device_put;
1457 platform_device_put(pdev);
1462 static int __init pc87360_init(void)
1465 unsigned short address = 0;
1467 if (pc87360_find(0x2e, &devid, extra_isa)
1468 && pc87360_find(0x4e, &devid, extra_isa)) {
1469 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1470 "module not inserted.\n");
1474 /* Arbitrarily pick one of the addresses */
1475 for (i = 0; i < 3; i++) {
1476 if (extra_isa[i] != 0x0000) {
1477 address = extra_isa[i];
1482 if (address == 0x0000) {
1483 printk(KERN_WARNING "pc87360: No active logical device, "
1484 "module not inserted.\n");
1488 err = platform_driver_register(&pc87360_driver);
1492 /* Sets global pdev as a side effect */
1493 err = pc87360_device_add(address);
1500 platform_driver_unregister(&pc87360_driver);
1505 static void __exit pc87360_exit(void)
1507 platform_device_unregister(pdev);
1508 platform_driver_unregister(&pc87360_driver);
1512 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1513 MODULE_DESCRIPTION("PC8736x hardware monitor");
1514 MODULE_LICENSE("GPL");
1516 module_init(pc87360_init);
1517 module_exit(pc87360_exit);