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1da177e4
LT		 1/*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
7c81c60f 4 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
1da177e4
LT		 5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
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.
13 *
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.
18 *
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.
22 *
23 * Supports the following chips:
24 *
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
31 *
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).
34 */
35
9e991c6f
JP		 36#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
37
1da177e4
LT		 38#include <linux/module.h>
39#include <linux/init.h>
40#include <linux/slab.h>
41#include <linux/jiffies.h>
f641b588 42#include <linux/platform_device.h>
943b0830 43#include <linux/hwmon.h>
f0986bd8 44#include <linux/hwmon-sysfs.h>
303760b4 45#include <linux/hwmon-vid.h>
943b0830 46#include <linux/err.h>
9a61bf63 47#include <linux/mutex.h>
b9acb64a 48#include <linux/acpi.h>
6055fae8 49#include <linux/io.h>
1da177e4 50
1da177e4 51static u8 devid;
f641b588 52static struct platform_device *pdev;
2d8672c5 53static unsigned short extra_isa[3];
1da177e4
LT		 54static u8 confreg[4];
55
1da177e4
LT		 56static int init = 1;
57module_param(init, int, 0);
58MODULE_PARM_DESC(init,
449a7a07
GR		 59"Chip initialization level:\n"
60" 0: None\n"
61"*1: Forcibly enable internal voltage and temperature channels, except in9\n"
62" 2: Forcibly enable all voltage and temperature channels, except in9\n"
63" 3: Forcibly enable all voltage and temperature channels, including in9");
1da177e4 64
67b671bc
JD		 65static unsigned short force_id;
66module_param(force_id, ushort, 0);
67MODULE_PARM_DESC(force_id, "Override the detected device ID");
68
1da177e4
LT		 69/*
70 * Super-I/O registers and operations
71 */
72
73#define DEV 0x07 /* Register: Logical device select */
74#define DEVID 0x20 /* Register: Device ID */
75#define ACT 0x30 /* Register: Device activation */
76#define BASE 0x60 /* Register: Base address */
77
78#define FSCM 0x09 /* Logical device: fans */
79#define VLM 0x0d /* Logical device: voltages */
80#define TMS 0x0e /* Logical device: temperatures */
2a32ec25
JC		 81#define LDNI_MAX 3
82static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
1da177e4
LT		 83
84#define LD_FAN 0
85#define LD_IN 1
86#define LD_TEMP 2
87
88static inline void superio_outb(int sioaddr, int reg, int val)
89{
90 outb(reg, sioaddr);
449a7a07 91 outb(val, sioaddr + 1);
1da177e4
LT		 92}
93
94static inline int superio_inb(int sioaddr, int reg)
95{
96 outb(reg, sioaddr);
449a7a07 97 return inb(sioaddr + 1);
1da177e4
LT		 98}
99
100static inline void superio_exit(int sioaddr)
101{
102 outb(0x02, sioaddr);
449a7a07 103 outb(0x02, sioaddr + 1);
1da177e4
LT		 104}
105
106/*
107 * Logical devices
108 */
109
110#define PC87360_EXTENT 0x10
111#define PC87365_REG_BANK 0x09
112#define NO_BANK 0xff
113
114/*
115 * Fan registers and conversions
116 */
117
118/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
119#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
120#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
121#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
122#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
123#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
124
449a7a07
GR		 125#define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \
126 480000 / ((val) * (div)))
127#define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \
128 480000 / ((val) * (div)))
129#define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03))
1da177e4
LT		 130#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
131
449a7a07
GR		 132#define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1)
133#define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1)
134#define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1)
1da177e4 135
449a7a07 136#define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val))
1da177e4
LT		 137static inline u8 PWM_TO_REG(int val, int inv)
138{
139 if (inv)
140 val = 255 - val;
141 if (val < 0)
142 return 0;
143 if (val > 255)
144 return 255;
145 return val;
146}
147
148/*
149 * Voltage registers and conversions
150 */
151
152#define PC87365_REG_IN_CONVRATE 0x07
153#define PC87365_REG_IN_CONFIG 0x08
154#define PC87365_REG_IN 0x0B
155#define PC87365_REG_IN_MIN 0x0D
156#define PC87365_REG_IN_MAX 0x0C
157#define PC87365_REG_IN_STATUS 0x0A
158#define PC87365_REG_IN_ALARMS1 0x00
159#define PC87365_REG_IN_ALARMS2 0x01
160#define PC87365_REG_VID 0x06
161
449a7a07
GR		 162#define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256)
163#define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \
164 (val) * 256 >= (ref) * 255 ? 255 : \
165 ((val) * 256 + (ref) / 2) / (ref))
1da177e4
LT		 166
167/*
168 * Temperature registers and conversions
169 */
170
171#define PC87365_REG_TEMP_CONFIG 0x08
172#define PC87365_REG_TEMP 0x0B
173#define PC87365_REG_TEMP_MIN 0x0D
174#define PC87365_REG_TEMP_MAX 0x0C
175#define PC87365_REG_TEMP_CRIT 0x0E
176#define PC87365_REG_TEMP_STATUS 0x0A
177#define PC87365_REG_TEMP_ALARMS 0x00
178
179#define TEMP_FROM_REG(val) ((val) * 1000)
180#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
181 (val) > 127000 ? 127 : \
182 (val) < 0 ? ((val) - 500) / 1000 : \
183 ((val) + 500) / 1000)
184
185/*
f641b588 186 * Device data
1da177e4
LT		 187 */
188
189struct pc87360_data {
f641b588 190 const char *name;
1beeffe4 191 struct device *hwmon_dev;
9a61bf63
IM		 192 struct mutex lock;
193 struct mutex update_lock;
1da177e4
LT		 194 char valid; /* !=0 if following fields are valid */
195 unsigned long last_updated; /* In jiffies */
196
197 int address[3];
198
199 u8 fannr, innr, tempnr;
200
201 u8 fan[3]; /* Register value */
202 u8 fan_min[3]; /* Register value */
203 u8 fan_status[3]; /* Register value */
204 u8 pwm[3]; /* Register value */
205 u16 fan_conf; /* Configuration register values, combined */
206
207 u16 in_vref; /* 1 mV/bit */
208 u8 in[14]; /* Register value */
209 u8 in_min[14]; /* Register value */
210 u8 in_max[14]; /* Register value */
211 u8 in_crit[3]; /* Register value */
212 u8 in_status[14]; /* Register value */
213 u16 in_alarms; /* Register values, combined, masked */
214 u8 vid_conf; /* Configuration register value */
215 u8 vrm;
216 u8 vid; /* Register value */
217
218 s8 temp[3]; /* Register value */
219 s8 temp_min[3]; /* Register value */
220 s8 temp_max[3]; /* Register value */
221 s8 temp_crit[3]; /* Register value */
222 u8 temp_status[3]; /* Register value */
223 u8 temp_alarms; /* Register value, masked */
224};
225
226/*
227 * Functions declaration
228 */
229
f641b588 230static int pc87360_probe(struct platform_device *pdev);
281dfd0b 231static int pc87360_remove(struct platform_device *pdev);
1da177e4
LT		 232
233static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
234 u8 reg);
235static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
236 u8 reg, u8 value);
f641b588
JD		 237static void pc87360_init_device(struct platform_device *pdev,
238 int use_thermistors);
1da177e4
LT		 239static struct pc87360_data *pc87360_update_device(struct device *dev);
240
241/*
f641b588 242 * Driver data
1da177e4
LT		 243 */
244
f641b588 245static struct platform_driver pc87360_driver = {
cdaf7934 246 .driver = {
87218842 247 .owner = THIS_MODULE,
cdaf7934
LR		 248 .name = "pc87360",
249 },
f641b588 250 .probe = pc87360_probe,
9e5e9b7a 251 .remove = pc87360_remove,
1da177e4
LT		 252};
253
254/*
255 * Sysfs stuff
256 */
257
449a7a07
GR		 258static ssize_t show_fan_input(struct device *dev,
259 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 260{
261 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
262 struct pc87360_data *data = pc87360_update_device(dev);
694fa056
JC		 263 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
264 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
f0986bd8 265}
449a7a07
GR		 266static ssize_t show_fan_min(struct device *dev,
267 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 268{
269 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
270 struct pc87360_data *data = pc87360_update_device(dev);
694fa056
JC		 271 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
272 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
f0986bd8 273}
449a7a07
GR		 274static ssize_t show_fan_div(struct device *dev,
275 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 276{
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",
694fa056 280 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
f0986bd8 281}
449a7a07
GR		 282static ssize_t show_fan_status(struct device *dev,
283 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 284{
285 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
286 struct pc87360_data *data = pc87360_update_device(dev);
287 return sprintf(buf, "%u\n",
694fa056 288 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
f0986bd8 289}
449a7a07
GR		 290static ssize_t set_fan_min(struct device *dev,
291 struct device_attribute *devattr, const char *buf,
f0986bd8
JC		 292 size_t count)
293{
294 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 295 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 296 long fan_min;
297 int err;
298
299 err = kstrtol(buf, 10, &fan_min);
300 if (err)
301 return err;
11be27ea 302
9a61bf63 303 mutex_lock(&data->update_lock);
449a7a07
GR		 304 fan_min = FAN_TO_REG(fan_min,
305 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
11be27ea
JC		 306
307 /* If it wouldn't fit, change clock divisor */
308 while (fan_min > 255
309 && (data->fan_status[attr->index] & 0x60) != 0x60) {
310 fan_min >>= 1;
311 data->fan[attr->index] >>= 1;
312 data->fan_status[attr->index] += 0x20;
313 }
314 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
449a7a07
GR		 315 pc87360_write_value(data, LD_FAN, NO_BANK,
316 PC87360_REG_FAN_MIN(attr->index),
11be27ea
JC		 317 data->fan_min[attr->index]);
318
319 /* Write new divider, preserve alarm bits */
449a7a07
GR		 320 pc87360_write_value(data, LD_FAN, NO_BANK,
321 PC87360_REG_FAN_STATUS(attr->index),
11be27ea 322 data->fan_status[attr->index] & 0xF9);
9a61bf63 323 mutex_unlock(&data->update_lock);
11be27ea
JC		 324
325 return count;
f0986bd8
JC		 326}
327
dedc6a78
JC		 328static struct sensor_device_attribute fan_input[] = {
329 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
330 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
331 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
332};
333static struct sensor_device_attribute fan_status[] = {
334 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
335 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
336 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
337};
338static struct sensor_device_attribute fan_div[] = {
339 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
340 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
341 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
342};
343static struct sensor_device_attribute fan_min[] = {
344 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
345 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
346 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
347};
1da177e4 348
bce2778d
GR		 349#define FAN_UNIT_ATTRS(X) \
350{ &fan_input[X].dev_attr.attr, \
941c5c05
JC		 351 &fan_status[X].dev_attr.attr, \
352 &fan_div[X].dev_attr.attr, \
bce2778d
GR		 353 &fan_min[X].dev_attr.attr, \
354 NULL \
355}
941c5c05 356
449a7a07
GR		 357static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
358 char *buf)
f0986bd8
JC		 359{
360 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
361 struct pc87360_data *data = pc87360_update_device(dev);
362 return sprintf(buf, "%u\n",
694fa056 363 PWM_FROM_REG(data->pwm[attr->index],
f0986bd8 364 FAN_CONFIG_INVERT(data->fan_conf,
694fa056 365 attr->index)));
f0986bd8 366}
449a7a07
GR		 367static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
368 const char *buf, size_t count)
f0986bd8
JC		 369{
370 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 371 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 372 long val;
373 int err;
374
375 err = kstrtol(buf, 10, &val);
376 if (err)
377 return err;
f0986bd8 378
9a61bf63 379 mutex_lock(&data->update_lock);
694fa056
JC		 380 data->pwm[attr->index] = PWM_TO_REG(val,
381 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
382 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
383 data->pwm[attr->index]);
9a61bf63 384 mutex_unlock(&data->update_lock);
f0986bd8
JC		 385 return count;
386}
387
dedc6a78
JC		 388static struct sensor_device_attribute pwm[] = {
389 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
390 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
391 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
392};
1da177e4 393
bce2778d 394static struct attribute *pc8736x_fan_attr[][5] = {
941c5c05
JC		 395 FAN_UNIT_ATTRS(0),
396 FAN_UNIT_ATTRS(1),
bce2778d 397 FAN_UNIT_ATTRS(2)
941c5c05 398};
bce2778d
GR		 399
400static const struct attribute_group pc8736x_fan_attr_group[] = {
401 { .attrs = pc8736x_fan_attr[0], },
402 { .attrs = pc8736x_fan_attr[1], },
403 { .attrs = pc8736x_fan_attr[2], },
941c5c05
JC		 404};
405
449a7a07
GR		 406static ssize_t show_in_input(struct device *dev,
407 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 408{
409 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
410 struct pc87360_data *data = pc87360_update_device(dev);
411 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
412 data->in_vref));
413}
449a7a07
GR		 414static ssize_t show_in_min(struct device *dev,
415 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 416{
417 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
418 struct pc87360_data *data = pc87360_update_device(dev);
419 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
420 data->in_vref));
421}
449a7a07
GR		 422static ssize_t show_in_max(struct device *dev,
423 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 424{
425 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
426 struct pc87360_data *data = pc87360_update_device(dev);
427 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
428 data->in_vref));
429}
449a7a07
GR		 430static ssize_t show_in_status(struct device *dev,
431 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 432{
433 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
434 struct pc87360_data *data = pc87360_update_device(dev);
435 return sprintf(buf, "%u\n", data->in_status[attr->index]);
436}
449a7a07
GR		 437static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr,
438 const char *buf, size_t count)
f0986bd8
JC		 439{
440 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 441 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 442 long val;
443 int err;
444
445 err = kstrtol(buf, 10, &val);
446 if (err)
447 return err;
f0986bd8 448
9a61bf63 449 mutex_lock(&data->update_lock);
f0986bd8
JC		 450 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
451 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
452 data->in_min[attr->index]);
9a61bf63 453 mutex_unlock(&data->update_lock);
f0986bd8
JC		 454 return count;
455}
449a7a07
GR		 456static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr,
457 const char *buf, size_t count)
f0986bd8
JC		 458{
459 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 460 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 461 long val;
462 int err;
463
464 err = kstrtol(buf, 10, &val);
465 if (err)
466 return err;
f0986bd8 467
9a61bf63 468 mutex_lock(&data->update_lock);
f0986bd8
JC		 469 data->in_max[attr->index] = IN_TO_REG(val,
470 data->in_vref);
471 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
472 data->in_max[attr->index]);
9a61bf63 473 mutex_unlock(&data->update_lock);
f0986bd8
JC		 474 return count;
475}
476
dedc6a78
JC		 477static struct sensor_device_attribute in_input[] = {
478 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
479 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
480 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
481 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
482 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
483 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
484 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
485 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
486 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
487 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
488 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
489};
490static struct sensor_device_attribute in_status[] = {
491 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
492 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
493 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
494 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
495 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
496 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
497 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
498 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
499 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
500 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
501 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
502};
503static struct sensor_device_attribute in_min[] = {
504 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
505 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
506 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
507 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
508 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
509 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
510 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
511 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
512 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
513 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
514 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
515};
516static struct sensor_device_attribute in_max[] = {
517 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
518 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
519 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
520 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
521 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
522 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
523 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
524 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
525 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
526 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
527 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
528};
1da177e4 529
28f74e71
JC		 530/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
531#define CHAN_ALM_MIN 0x02 /* min limit crossed */
532#define CHAN_ALM_MAX 0x04 /* max limit exceeded */
533#define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
534
3af2861e
GR		 535/*
536 * show_in_min/max_alarm() reads data from the per-channel status
537 * register (sec 11.5.12), not the vin event status registers (sec
538 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
539 */
492e9657
JC		 540
541static ssize_t show_in_min_alarm(struct device *dev,
542 struct device_attribute *devattr, char *buf)
543{
544 struct pc87360_data *data = pc87360_update_device(dev);
545 unsigned nr = to_sensor_dev_attr(devattr)->index;
546
547 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
548}
549static ssize_t show_in_max_alarm(struct device *dev,
550 struct device_attribute *devattr, char *buf)
551{
552 struct pc87360_data *data = pc87360_update_device(dev);
553 unsigned nr = to_sensor_dev_attr(devattr)->index;
554
555 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
556}
557
558static struct sensor_device_attribute in_min_alarm[] = {
559 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
560 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
561 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
562 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
563 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
564 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
565 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
566 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
567 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
568 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
569 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
570};
571static struct sensor_device_attribute in_max_alarm[] = {
572 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
573 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
574 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
575 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
576 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
577 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
578 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
579 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
580 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
581 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
582 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
583};
584
941c5c05
JC		 585#define VIN_UNIT_ATTRS(X) \
586 &in_input[X].dev_attr.attr, \
587 &in_status[X].dev_attr.attr, \
588 &in_min[X].dev_attr.attr, \
492e9657
JC		 589 &in_max[X].dev_attr.attr, \
590 &in_min_alarm[X].dev_attr.attr, \
591 &in_max_alarm[X].dev_attr.attr
941c5c05 592
449a7a07
GR		 593static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
594 char *buf)
44646c19
JC		 595{
596 struct pc87360_data *data = pc87360_update_device(dev);
597 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
598}
599static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
600
449a7a07
GR		 601static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
602 char *buf)
44646c19 603{
90d6619a 604 struct pc87360_data *data = dev_get_drvdata(dev);
44646c19
JC		 605 return sprintf(buf, "%u\n", data->vrm);
606}
449a7a07
GR		 607static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
608 const char *buf, size_t count)
44646c19 609{
f641b588 610 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 611 unsigned long val;
612 int err;
613
614 err = kstrtoul(buf, 10, &val);
615 if (err)
616 return err;
617
618 data->vrm = val;
44646c19
JC		 619 return count;
620}
621static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
622
449a7a07
GR		 623static ssize_t show_in_alarms(struct device *dev,
624 struct device_attribute *attr, char *buf)
44646c19
JC		 625{
626 struct pc87360_data *data = pc87360_update_device(dev);
627 return sprintf(buf, "%u\n", data->in_alarms);
628}
629static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
630
941c5c05
JC		 631static struct attribute *pc8736x_vin_attr_array[] = {
632 VIN_UNIT_ATTRS(0),
633 VIN_UNIT_ATTRS(1),
634 VIN_UNIT_ATTRS(2),
635 VIN_UNIT_ATTRS(3),
636 VIN_UNIT_ATTRS(4),
637 VIN_UNIT_ATTRS(5),
638 VIN_UNIT_ATTRS(6),
639 VIN_UNIT_ATTRS(7),
640 VIN_UNIT_ATTRS(8),
641 VIN_UNIT_ATTRS(9),
642 VIN_UNIT_ATTRS(10),
643 &dev_attr_cpu0_vid.attr,
644 &dev_attr_vrm.attr,
645 &dev_attr_alarms_in.attr,
646 NULL
647};
648static const struct attribute_group pc8736x_vin_group = {
649 .attrs = pc8736x_vin_attr_array,
650};
651
449a7a07
GR		 652static ssize_t show_therm_input(struct device *dev,
653 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 654{
655 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
656 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 657 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
f0986bd8
JC		 658 data->in_vref));
659}
449a7a07
GR		 660static ssize_t show_therm_min(struct device *dev,
661 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 662{
663 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
664 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 665 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
f0986bd8
JC		 666 data->in_vref));
667}
449a7a07
GR		 668static ssize_t show_therm_max(struct device *dev,
669 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 670{
671 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
672 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 673 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
f0986bd8
JC		 674 data->in_vref));
675}
449a7a07
GR		 676static ssize_t show_therm_crit(struct device *dev,
677 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 678{
679 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
680 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 681 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
f0986bd8
JC		 682 data->in_vref));
683}
449a7a07
GR		 684static ssize_t show_therm_status(struct device *dev,
685 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 686{
687 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
688 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 689 return sprintf(buf, "%u\n", data->in_status[attr->index]);
f0986bd8 690}
449a7a07
GR		 691
692static ssize_t set_therm_min(struct device *dev,
693 struct device_attribute *devattr,
694 const char *buf, size_t count)
f0986bd8
JC		 695{
696 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 697 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 698 long val;
699 int err;
700
701 err = kstrtol(buf, 10, &val);
702 if (err)
703 return err;
f0986bd8 704
9a61bf63 705 mutex_lock(&data->update_lock);
694fa056
JC		 706 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
707 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
708 data->in_min[attr->index]);
9a61bf63 709 mutex_unlock(&data->update_lock);
f0986bd8
JC		 710 return count;
711}
449a7a07
GR		 712
713static ssize_t set_therm_max(struct device *dev,
714 struct device_attribute *devattr,
715 const char *buf, size_t count)
f0986bd8
JC		 716{
717 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 718 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 719 long val;
720 int err;
721
722 err = kstrtol(buf, 10, &val);
723 if (err)
724 return err;
f0986bd8 725
9a61bf63 726 mutex_lock(&data->update_lock);
694fa056
JC		 727 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
728 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
729 data->in_max[attr->index]);
9a61bf63 730 mutex_unlock(&data->update_lock);
f0986bd8
JC		 731 return count;
732}
449a7a07
GR		 733static ssize_t set_therm_crit(struct device *dev,
734 struct device_attribute *devattr,
735 const char *buf, size_t count)
f0986bd8
JC		 736{
737 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 738 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 739 long val;
740 int err;
741
742 err = kstrtol(buf, 10, &val);
743 if (err)
744 return err;
f0986bd8 745
9a61bf63 746 mutex_lock(&data->update_lock);
694fa056
JC		 747 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
748 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
749 data->in_crit[attr->index-11]);
9a61bf63 750 mutex_unlock(&data->update_lock);
f0986bd8
JC		 751 return count;
752}
753
3af2861e
GR		 754/*
755 * the +11 term below reflects the fact that VLM units 11,12,13 are
756 * used in the chip to measure voltage across the thermistors
757 */
dedc6a78 758static struct sensor_device_attribute therm_input[] = {
449a7a07
GR		 759 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11),
760 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11),
761 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11),
dedc6a78
JC		 762};
763static struct sensor_device_attribute therm_status[] = {
449a7a07
GR		 764 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11),
765 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11),
766 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11),
dedc6a78
JC		 767};
768static struct sensor_device_attribute therm_min[] = {
769 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
449a7a07 770 show_therm_min, set_therm_min, 0 + 11),
dedc6a78 771 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
449a7a07 772 show_therm_min, set_therm_min, 1 + 11),
dedc6a78 773 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
449a7a07 774 show_therm_min, set_therm_min, 2 + 11),
dedc6a78
JC		 775};
776static struct sensor_device_attribute therm_max[] = {
777 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
449a7a07 778 show_therm_max, set_therm_max, 0 + 11),
dedc6a78 779 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
449a7a07 780 show_therm_max, set_therm_max, 1 + 11),
dedc6a78 781 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
449a7a07 782 show_therm_max, set_therm_max, 2 + 11),
dedc6a78
JC		 783};
784static struct sensor_device_attribute therm_crit[] = {
785 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
449a7a07 786 show_therm_crit, set_therm_crit, 0 + 11),
dedc6a78 787 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
449a7a07 788 show_therm_crit, set_therm_crit, 1 + 11),
dedc6a78 789 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
449a7a07 790 show_therm_crit, set_therm_crit, 2 + 11),
dedc6a78 791};
1da177e4 792
3af2861e
GR		 793/*
794 * show_therm_min/max_alarm() reads data from the per-channel voltage
795 * status register (sec 11.5.12)
796 */
865c2953
JC		 797
798static ssize_t show_therm_min_alarm(struct device *dev,
799 struct device_attribute *devattr, char *buf)
800{
801 struct pc87360_data *data = pc87360_update_device(dev);
802 unsigned nr = to_sensor_dev_attr(devattr)->index;
803
804 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
805}
806static ssize_t show_therm_max_alarm(struct device *dev,
807 struct device_attribute *devattr, char *buf)
808{
809 struct pc87360_data *data = pc87360_update_device(dev);
810 unsigned nr = to_sensor_dev_attr(devattr)->index;
811
812 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
813}
814static ssize_t show_therm_crit_alarm(struct device *dev,
815 struct device_attribute *devattr, char *buf)
816{
817 struct pc87360_data *data = pc87360_update_device(dev);
818 unsigned nr = to_sensor_dev_attr(devattr)->index;
819
820 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
821}
822
823static struct sensor_device_attribute therm_min_alarm[] = {
824 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
449a7a07 825 show_therm_min_alarm, NULL, 0 + 11),
865c2953 826 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
449a7a07 827 show_therm_min_alarm, NULL, 1 + 11),
865c2953 828 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
449a7a07 829 show_therm_min_alarm, NULL, 2 + 11),
865c2953
JC		 830};
831static struct sensor_device_attribute therm_max_alarm[] = {
832 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
449a7a07 833 show_therm_max_alarm, NULL, 0 + 11),
865c2953 834 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
449a7a07 835 show_therm_max_alarm, NULL, 1 + 11),
865c2953 836 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
449a7a07 837 show_therm_max_alarm, NULL, 2 + 11),
865c2953
JC		 838};
839static struct sensor_device_attribute therm_crit_alarm[] = {
840 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
449a7a07 841 show_therm_crit_alarm, NULL, 0 + 11),
865c2953 842 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
449a7a07 843 show_therm_crit_alarm, NULL, 1 + 11),
865c2953 844 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
449a7a07 845 show_therm_crit_alarm, NULL, 2 + 11),
865c2953
JC		 846};
847
941c5c05
JC		 848#define THERM_UNIT_ATTRS(X) \
849 &therm_input[X].dev_attr.attr, \
850 &therm_status[X].dev_attr.attr, \
851 &therm_min[X].dev_attr.attr, \
852 &therm_max[X].dev_attr.attr, \
865c2953
JC		 853 &therm_crit[X].dev_attr.attr, \
854 &therm_min_alarm[X].dev_attr.attr, \
855 &therm_max_alarm[X].dev_attr.attr, \
856 &therm_crit_alarm[X].dev_attr.attr
941c5c05 857
449a7a07 858static struct attribute *pc8736x_therm_attr_array[] = {
941c5c05
JC		 859 THERM_UNIT_ATTRS(0),
860 THERM_UNIT_ATTRS(1),
861 THERM_UNIT_ATTRS(2),
862 NULL
863};
864static const struct attribute_group pc8736x_therm_group = {
865 .attrs = pc8736x_therm_attr_array,
866};
867
449a7a07
GR		 868static ssize_t show_temp_input(struct device *dev,
869 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 870{
871 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
872 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 873 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
f0986bd8 874}
449a7a07
GR		 875
876static ssize_t show_temp_min(struct device *dev,
877 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 878{
879 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
880 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 881 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
f0986bd8 882}
449a7a07
GR		 883
884static ssize_t show_temp_max(struct device *dev,
885 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 886{
887 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
888 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 889 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
f0986bd8 890}
449a7a07
GR		 891
892static ssize_t show_temp_crit(struct device *dev,
893 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 894{
895 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
896 struct pc87360_data *data = pc87360_update_device(dev);
449a7a07
GR		 897 return sprintf(buf, "%d\n",
898 TEMP_FROM_REG(data->temp_crit[attr->index]));
f0986bd8 899}
449a7a07
GR		 900
901static ssize_t show_temp_status(struct device *dev,
902 struct device_attribute *devattr, char *buf)
f0986bd8
JC		 903{
904 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
905 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 906 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
f0986bd8 907}
449a7a07
GR		 908
909static ssize_t set_temp_min(struct device *dev,
910 struct device_attribute *devattr,
911 const char *buf, size_t count)
f0986bd8
JC		 912{
913 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 914 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 915 long val;
916 int err;
917
918 err = kstrtol(buf, 10, &val);
919 if (err)
920 return err;
f0986bd8 921
9a61bf63 922 mutex_lock(&data->update_lock);
694fa056
JC		 923 data->temp_min[attr->index] = TEMP_TO_REG(val);
924 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
925 data->temp_min[attr->index]);
9a61bf63 926 mutex_unlock(&data->update_lock);
f0986bd8
JC		 927 return count;
928}
449a7a07
GR		 929
930static ssize_t set_temp_max(struct device *dev,
931 struct device_attribute *devattr,
932 const char *buf, size_t count)
f0986bd8
JC		 933{
934 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 935 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 936 long val;
937 int err;
938
939 err = kstrtol(buf, 10, &val);
940 if (err)
941 return err;
f0986bd8 942
9a61bf63 943 mutex_lock(&data->update_lock);
694fa056
JC		 944 data->temp_max[attr->index] = TEMP_TO_REG(val);
945 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
946 data->temp_max[attr->index]);
9a61bf63 947 mutex_unlock(&data->update_lock);
f0986bd8
JC		 948 return count;
949}
449a7a07
GR		 950
951static ssize_t set_temp_crit(struct device *dev,
952 struct device_attribute *devattr, const char *buf,
953 size_t count)
f0986bd8
JC		 954{
955 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 956 struct pc87360_data *data = dev_get_drvdata(dev);
449a7a07
GR		 957 long val;
958 int err;
959
960 err = kstrtol(buf, 10, &val);
961 if (err)
962 return err;
f0986bd8 963
9a61bf63 964 mutex_lock(&data->update_lock);
694fa056
JC		 965 data->temp_crit[attr->index] = TEMP_TO_REG(val);
966 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
967 data->temp_crit[attr->index]);
9a61bf63 968 mutex_unlock(&data->update_lock);
f0986bd8
JC		 969 return count;
970}
971
dedc6a78
JC		 972static struct sensor_device_attribute temp_input[] = {
973 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
974 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
975 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
976};
977static struct sensor_device_attribute temp_status[] = {
978 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
979 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
980 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
981};
982static struct sensor_device_attribute temp_min[] = {
983 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
984 show_temp_min, set_temp_min, 0),
985 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
986 show_temp_min, set_temp_min, 1),
987 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
988 show_temp_min, set_temp_min, 2),
989};
990static struct sensor_device_attribute temp_max[] = {
991 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
992 show_temp_max, set_temp_max, 0),
993 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
994 show_temp_max, set_temp_max, 1),
995 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
996 show_temp_max, set_temp_max, 2),
997};
998static struct sensor_device_attribute temp_crit[] = {
999 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
1000 show_temp_crit, set_temp_crit, 0),
1001 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
1002 show_temp_crit, set_temp_crit, 1),
1003 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
1004 show_temp_crit, set_temp_crit, 2),
1005};
1da177e4 1006
449a7a07
GR		 1007static ssize_t show_temp_alarms(struct device *dev,
1008 struct device_attribute *attr, char *buf)
1da177e4
LT		 1009{
1010 struct pc87360_data *data = pc87360_update_device(dev);
1011 return sprintf(buf, "%u\n", data->temp_alarms);
1012}
449a7a07 1013
1da177e4
LT		 1014static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
1015
3af2861e
GR		 1016/*
1017 * show_temp_min/max_alarm() reads data from the per-channel status
1018 * register (sec 12.3.7), not the temp event status registers (sec
1019 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1020 */
b267e8cd
JC		 1021
1022static ssize_t show_temp_min_alarm(struct device *dev,
1023 struct device_attribute *devattr, char *buf)
1024{
1025 struct pc87360_data *data = pc87360_update_device(dev);
1026 unsigned nr = to_sensor_dev_attr(devattr)->index;
1027
1028 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1029}
449a7a07 1030
b267e8cd
JC		 1031static ssize_t show_temp_max_alarm(struct device *dev,
1032 struct device_attribute *devattr, char *buf)
1033{
1034 struct pc87360_data *data = pc87360_update_device(dev);
1035 unsigned nr = to_sensor_dev_attr(devattr)->index;
1036
1037 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1038}
449a7a07 1039
b267e8cd
JC		 1040static ssize_t show_temp_crit_alarm(struct device *dev,
1041 struct device_attribute *devattr, char *buf)
1042{
1043 struct pc87360_data *data = pc87360_update_device(dev);
1044 unsigned nr = to_sensor_dev_attr(devattr)->index;
1045
1046 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1047}
1048
1049static struct sensor_device_attribute temp_min_alarm[] = {
1050 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
1051 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
1052 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
1053};
449a7a07 1054
b267e8cd
JC		 1055static struct sensor_device_attribute temp_max_alarm[] = {
1056 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
1057 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
1058 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
1059};
449a7a07 1060
b267e8cd
JC		 1061static struct sensor_device_attribute temp_crit_alarm[] = {
1062 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
1063 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
1064 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
1065};
1066
1067#define TEMP_FAULT 0x40 /* open diode */
1068static ssize_t show_temp_fault(struct device *dev,
1069 struct device_attribute *devattr, char *buf)
1070{
1071 struct pc87360_data *data = pc87360_update_device(dev);
1072 unsigned nr = to_sensor_dev_attr(devattr)->index;
1073
1074 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1075}
1076static struct sensor_device_attribute temp_fault[] = {
1077 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
1078 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
1079 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
1080};
1081
bce2778d
GR		 1082#define TEMP_UNIT_ATTRS(X) \
1083{ &temp_input[X].dev_attr.attr, \
1084 &temp_status[X].dev_attr.attr, \
1085 &temp_min[X].dev_attr.attr, \
1086 &temp_max[X].dev_attr.attr, \
1087 &temp_crit[X].dev_attr.attr, \
1088 &temp_min_alarm[X].dev_attr.attr, \
1089 &temp_max_alarm[X].dev_attr.attr, \
1090 &temp_crit_alarm[X].dev_attr.attr, \
1091 &temp_fault[X].dev_attr.attr, \
1092 NULL \
1093}
1094
1095static struct attribute *pc8736x_temp_attr[][10] = {
941c5c05
JC		 1096 TEMP_UNIT_ATTRS(0),
1097 TEMP_UNIT_ATTRS(1),
bce2778d 1098 TEMP_UNIT_ATTRS(2)
941c5c05 1099};
449a7a07 1100
bce2778d
GR		 1101static const struct attribute_group pc8736x_temp_attr_group[] = {
1102 { .attrs = pc8736x_temp_attr[0] },
1103 { .attrs = pc8736x_temp_attr[1] },
1104 { .attrs = pc8736x_temp_attr[2] }
941c5c05
JC		 1105};
1106
b267e8cd
JC		 1107static ssize_t show_name(struct device *dev,
1108 struct device_attribute *devattr, char *buf)
f641b588
JD		 1109{
1110 struct pc87360_data *data = dev_get_drvdata(dev);
1111 return sprintf(buf, "%s\n", data->name);
1112}
449a7a07 1113
f641b588
JD		 1114static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1115
1da177e4
LT		 1116/*
1117 * Device detection, registration and update
1118 */
1119
449a7a07
GR		 1120static int __init pc87360_find(int sioaddr, u8 *devid,
1121 unsigned short *addresses)
1da177e4
LT		 1122{
1123 u16 val;
1124 int i;
1125 int nrdev; /* logical device count */
1126
1127 /* No superio_enter */
1128
1129 /* Identify device */
67b671bc 1130 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1da177e4
LT		 1131 switch (val) {
1132 case 0xE1: /* PC87360 */
1133 case 0xE8: /* PC87363 */
1134 case 0xE4: /* PC87364 */
1135 nrdev = 1;
1136 break;
1137 case 0xE5: /* PC87365 */
1138 case 0xE9: /* PC87366 */
1139 nrdev = 3;
1140 break;
1141 default:
1142 superio_exit(sioaddr);
1143 return -ENODEV;
1144 }
1145 /* Remember the device id */
1146 *devid = val;
1147
1148 for (i = 0; i < nrdev; i++) {
1149 /* select logical device */
1150 superio_outb(sioaddr, DEV, logdev[i]);
1151
1152 val = superio_inb(sioaddr, ACT);
1153 if (!(val & 0x01)) {
9e991c6f 1154 pr_info("Device 0x%02x not activated\n", logdev[i]);
1da177e4
LT		 1155 continue;
1156 }
1157
1158 val = (superio_inb(sioaddr, BASE) << 8)
1159 | superio_inb(sioaddr, BASE + 1);
1160 if (!val) {
9e991c6f
JP		 1161 pr_info("Base address not set for device 0x%02x\n",
1162 logdev[i]);
1da177e4
LT		 1163 continue;
1164 }
1165
2d8672c5 1166 addresses[i] = val;
1da177e4 1167
449a7a07 1168 if (i == 0) { /* Fans */
1da177e4
LT		 1169 confreg[0] = superio_inb(sioaddr, 0xF0);
1170 confreg[1] = superio_inb(sioaddr, 0xF1);
1171
9e991c6f
JP		 1172 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1173 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1174 (confreg[0] >> 4) & 1);
1175 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1176 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1177 (confreg[0] >> 7) & 1);
1178 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1179 confreg[1] & 1, (confreg[1] >> 1) & 1,
1180 (confreg[1] >> 2) & 1);
449a7a07 1181 } else if (i == 1) { /* Voltages */
1da177e4
LT		 1182 /* Are we using thermistors? */
1183 if (*devid == 0xE9) { /* PC87366 */
3af2861e
GR		 1184 /*
1185 * These registers are not logical-device
1186 * specific, just that we won't need them if
1187 * we don't use the VLM device
1188 */
1da177e4
LT		 1189 confreg[2] = superio_inb(sioaddr, 0x2B);
1190 confreg[3] = superio_inb(sioaddr, 0x25);
1191
1192 if (confreg[2] & 0x40) {
b55f3757 1193 pr_info("Using thermistors for temperature monitoring\n");
1da177e4
LT		 1194 }
1195 if (confreg[3] & 0xE0) {
9e991c6f
JP		 1196 pr_info("VID inputs routed (mode %u)\n",
1197 confreg[3] >> 5);
1da177e4
LT		 1198 }
1199 }
1200 }
1201 }
1202
1203 superio_exit(sioaddr);
1204 return 0;
1205}
1206
bce2778d
GR		 1207static void pc87360_remove_files(struct device *dev)
1208{
1209 int i;
1210
1211 device_remove_file(dev, &dev_attr_name);
1212 device_remove_file(dev, &dev_attr_alarms_temp);
1213 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1214 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1215 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1216 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1217 device_remove_file(dev, &pwm[i].dev_attr);
1218 }
1219 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1220 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1221}
1222
6c931ae1 1223static int pc87360_probe(struct platform_device *pdev)
1da177e4
LT		 1224{
1225 int i;
1da177e4
LT		 1226 struct pc87360_data *data;
1227 int err = 0;
1228 const char *name = "pc87360";
1229 int use_thermistors = 0;
f641b588 1230 struct device *dev = &pdev->dev;
1da177e4 1231
61d4d17e 1232 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
449a7a07 1233 if (!data)
1da177e4 1234 return -ENOMEM;
1da177e4 1235
1da177e4
LT		 1236 data->fannr = 2;
1237 data->innr = 0;
1238 data->tempnr = 0;
1239
1240 switch (devid) {
1241 case 0xe8:
1242 name = "pc87363";
1243 break;
1244 case 0xe4:
1245 name = "pc87364";
1246 data->fannr = 3;
1247 break;
1248 case 0xe5:
1249 name = "pc87365";
1250 data->fannr = extra_isa[0] ? 3 : 0;
1251 data->innr = extra_isa[1] ? 11 : 0;
1252 data->tempnr = extra_isa[2] ? 2 : 0;
1253 break;
1254 case 0xe9:
1255 name = "pc87366";
1256 data->fannr = extra_isa[0] ? 3 : 0;
1257 data->innr = extra_isa[1] ? 14 : 0;
1258 data->tempnr = extra_isa[2] ? 3 : 0;
1259 break;
1260 }
1261
f641b588 1262 data->name = name;
1da177e4 1263 data->valid = 0;
f641b588 1264 mutex_init(&data->lock);
9a61bf63 1265 mutex_init(&data->update_lock);
f641b588 1266 platform_set_drvdata(pdev, data);
1da177e4 1267
2a32ec25 1268 for (i = 0; i < LDNI_MAX; i++) {
449a7a07
GR		 1269 data->address[i] = extra_isa[i];
1270 if (data->address[i]
61d4d17e
GR		 1271 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1272 pc87360_driver.driver.name)) {
b55f3757
GR		 1273 dev_err(dev,
1274 "Region 0x%x-0x%x already in use!\n",
1275 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
61d4d17e 1276 return -EBUSY;
1da177e4
LT		 1277 }
1278 }
1279
1280 /* Retrieve the fans configuration from Super-I/O space */
1281 if (data->fannr)
1282 data->fan_conf = confreg[0] | (confreg[1] << 8);
1283
3af2861e
GR		 1284 /*
1285 * Use the correct reference voltage
1286 * Unless both the VLM and the TMS logical devices agree to
1287 * use an external Vref, the internal one is used.
1288 */
1da177e4
LT		 1289 if (data->innr) {
1290 i = pc87360_read_value(data, LD_IN, NO_BANK,
1291 PC87365_REG_IN_CONFIG);
1292 if (data->tempnr) {
1293 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1294 PC87365_REG_TEMP_CONFIG);
1295 }
1296 data->in_vref = (i&0x02) ? 3025 : 2966;
f641b588 1297 dev_dbg(dev, "Using %s reference voltage\n",
1da177e4
LT		 1298 (i&0x02) ? "external" : "internal");
1299
1300 data->vid_conf = confreg[3];
3d7f9a86 1301 data->vrm = vid_which_vrm();
1da177e4
LT		 1302 }
1303
1304 /* Fan clock dividers may be needed before any data is read */
1305 for (i = 0; i < data->fannr; i++) {
1306 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1307 data->fan_status[i] = pc87360_read_value(data,
1308 LD_FAN, NO_BANK,
1309 PC87360_REG_FAN_STATUS(i));
1310 }
1311
1312 if (init > 0) {
1313 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1314 use_thermistors = confreg[2] & 0x40;
1315
f641b588 1316 pc87360_init_device(pdev, use_thermistors);
1da177e4
LT		 1317 }
1318
f3722d5b
JC		 1319 /* Register all-or-nothing sysfs groups */
1320
449a7a07
GR		 1321 if (data->innr) {
1322 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1323 if (err)
61d4d17e 1324 goto error;
449a7a07 1325 }
943b0830 1326
449a7a07
GR		 1327 if (data->innr == 14) {
1328 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1329 if (err)
61d4d17e 1330 goto error;
449a7a07 1331 }
f3722d5b
JC		 1332
1333 /* create device attr-files for varying sysfs groups */
1da177e4
LT		 1334
1335 if (data->tempnr) {
dedc6a78 1336 for (i = 0; i < data->tempnr; i++) {
bce2778d
GR		 1337 err = sysfs_create_group(&dev->kobj,
1338 &pc8736x_temp_attr_group[i]);
1339 if (err)
61d4d17e 1340 goto error;
1da177e4 1341 }
449a7a07
GR		 1342 err = device_create_file(dev, &dev_attr_alarms_temp);
1343 if (err)
61d4d17e 1344 goto error;
1da177e4 1345 }
1da177e4 1346
dedc6a78 1347 for (i = 0; i < data->fannr; i++) {
bce2778d
GR		 1348 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1349 err = sysfs_create_group(&dev->kobj,
1350 &pc8736x_fan_attr_group[i]);
1351 if (err)
61d4d17e 1352 goto error;
bce2778d 1353 }
449a7a07
GR		 1354 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1355 err = device_create_file(dev, &pwm[i].dev_attr);
1356 if (err)
61d4d17e 1357 goto error;
449a7a07 1358 }
1da177e4
LT		 1359 }
1360
449a7a07
GR		 1361 err = device_create_file(dev, &dev_attr_name);
1362 if (err)
61d4d17e 1363 goto error;
f641b588 1364
1beeffe4
TJ		 1365 data->hwmon_dev = hwmon_device_register(dev);
1366 if (IS_ERR(data->hwmon_dev)) {
1367 err = PTR_ERR(data->hwmon_dev);
61d4d17e 1368 goto error;
f3722d5b 1369 }
1da177e4
LT		 1370 return 0;
1371
61d4d17e 1372error:
bce2778d 1373 pc87360_remove_files(dev);
1da177e4
LT		 1374 return err;
1375}
1376
281dfd0b 1377static int pc87360_remove(struct platform_device *pdev)
1da177e4 1378{
f641b588 1379 struct pc87360_data *data = platform_get_drvdata(pdev);
1da177e4 1380
1beeffe4 1381 hwmon_device_unregister(data->hwmon_dev);
bce2778d 1382 pc87360_remove_files(&pdev->dev);
1da177e4
LT		 1383
1384 return 0;
1385}
1386
3af2861e
GR		 1387/*
1388 * ldi is the logical device index
1389 * bank is for voltages and temperatures only
1390 */
1da177e4
LT		 1391static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1392 u8 reg)
1393{
1394 int res;
1395
9a61bf63 1396 mutex_lock(&(data->lock));
1da177e4
LT		 1397 if (bank != NO_BANK)
1398 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1399 res = inb_p(data->address[ldi] + reg);
9a61bf63 1400 mutex_unlock(&(data->lock));
1da177e4
LT		 1401
1402 return res;
1403}
1404
1405static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1406 u8 reg, u8 value)
1407{
9a61bf63 1408 mutex_lock(&(data->lock));
1da177e4
LT		 1409 if (bank != NO_BANK)
1410 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1411 outb_p(value, data->address[ldi] + reg);
9a61bf63 1412 mutex_unlock(&(data->lock));
1da177e4
LT		 1413}
1414
28f74e71
JC		 1415/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1416#define CHAN_CNVRTD 0x80 /* new data ready */
1417#define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1418#define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1419#define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1420
b267e8cd
JC		 1421#define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1422#define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1423#define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1424
f641b588
JD		 1425static void pc87360_init_device(struct platform_device *pdev,
1426 int use_thermistors)
1da177e4 1427{
f641b588 1428 struct pc87360_data *data = platform_get_drvdata(pdev);
1da177e4
LT		 1429 int i, nr;
1430 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1431 const u8 init_temp[3] = { 2, 2, 1 };
1432 u8 reg;
1433
1434 if (init >= 2 && data->innr) {
1435 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1436 PC87365_REG_IN_CONVRATE);
b55f3757
GR		 1437 dev_info(&pdev->dev,
1438 "VLM conversion set to 1s period, 160us delay\n");
1da177e4
LT		 1439 pc87360_write_value(data, LD_IN, NO_BANK,
1440 PC87365_REG_IN_CONVRATE,
1441 (reg & 0xC0) | 0x11);
1442 }
1443
1444 nr = data->innr < 11 ? data->innr : 11;
dedc6a78 1445 for (i = 0; i < nr; i++) {
8ca13674
JC		 1446 reg = pc87360_read_value(data, LD_IN, i,
1447 PC87365_REG_IN_STATUS);
1448 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1da177e4
LT		 1449 if (init >= init_in[i]) {
1450 /* Forcibly enable voltage channel */
28f74e71 1451 if (!(reg & CHAN_ENA)) {
b55f3757
GR		 1452 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1453 i);
1da177e4
LT		 1454 pc87360_write_value(data, LD_IN, i,
1455 PC87365_REG_IN_STATUS,
1456 (reg & 0x68) | 0x87);
1457 }
1458 }
1459 }
1460
3af2861e
GR		 1461 /*
1462 * We can't blindly trust the Super-I/O space configuration bit,
1463 * most BIOS won't set it properly
1464 */
8ca13674 1465 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
dedc6a78 1466 for (i = 11; i < data->innr; i++) {
1da177e4
LT		 1467 reg = pc87360_read_value(data, LD_IN, i,
1468 PC87365_REG_TEMP_STATUS);
28f74e71 1469 use_thermistors = use_thermistors || (reg & CHAN_ENA);
8ca13674
JC		 1470 /* thermistors are temp[4-6], measured on vin[11-14] */
1471 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1da177e4 1472 }
8ca13674 1473 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1da177e4
LT		 1474
1475 i = use_thermistors ? 2 : 0;
dedc6a78 1476 for (; i < data->tempnr; i++) {
8ca13674
JC		 1477 reg = pc87360_read_value(data, LD_TEMP, i,
1478 PC87365_REG_TEMP_STATUS);
449a7a07 1479 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1da177e4
LT		 1480 if (init >= init_temp[i]) {
1481 /* Forcibly enable temperature channel */
28f74e71 1482 if (!(reg & CHAN_ENA)) {
449a7a07
GR		 1483 dev_dbg(&pdev->dev,
1484 "Forcibly enabling temp%d\n", i + 1);
1da177e4
LT		 1485 pc87360_write_value(data, LD_TEMP, i,
1486 PC87365_REG_TEMP_STATUS,
1487 0xCF);
1488 }
1489 }
1490 }
1491
1492 if (use_thermistors) {
dedc6a78 1493 for (i = 11; i < data->innr; i++) {
1da177e4 1494 if (init >= init_in[i]) {
3af2861e
GR		 1495 /*
1496 * The pin may already be used by thermal
1497 * diodes
1498 */
1da177e4 1499 reg = pc87360_read_value(data, LD_TEMP,
449a7a07 1500 (i - 11) / 2, PC87365_REG_TEMP_STATUS);
28f74e71 1501 if (reg & CHAN_ENA) {
449a7a07
GR		 1502 dev_dbg(&pdev->dev,
1503 "Skipping temp%d, pin already in use by temp%d\n",
1504 i - 7, (i - 11) / 2);
1da177e4
LT		 1505 continue;
1506 }
1507
1508 /* Forcibly enable thermistor channel */
1509 reg = pc87360_read_value(data, LD_IN, i,
1510 PC87365_REG_IN_STATUS);
28f74e71 1511 if (!(reg & CHAN_ENA)) {
449a7a07
GR		 1512 dev_dbg(&pdev->dev,
1513 "Forcibly enabling temp%d\n",
1514 i - 7);
1da177e4
LT		 1515 pc87360_write_value(data, LD_IN, i,
1516 PC87365_REG_TEMP_STATUS,
1517 (reg & 0x60) | 0x8F);
1518 }
1519 }
1520 }
1521 }
1522
1523 if (data->innr) {
1524 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1525 PC87365_REG_IN_CONFIG);
8ca13674 1526 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
28f74e71 1527 if (reg & CHAN_ENA) {
449a7a07
GR		 1528 dev_dbg(&pdev->dev,
1529 "Forcibly enabling monitoring (VLM)\n");
1da177e4
LT		 1530 pc87360_write_value(data, LD_IN, NO_BANK,
1531 PC87365_REG_IN_CONFIG,
1532 reg & 0xFE);
1533 }
1534 }
1535
1536 if (data->tempnr) {
1537 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1538 PC87365_REG_TEMP_CONFIG);
8ca13674 1539 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
28f74e71 1540 if (reg & CHAN_ENA) {
449a7a07
GR		 1541 dev_dbg(&pdev->dev,
1542 "Forcibly enabling monitoring (TMS)\n");
1da177e4
LT		 1543 pc87360_write_value(data, LD_TEMP, NO_BANK,
1544 PC87365_REG_TEMP_CONFIG,
1545 reg & 0xFE);
1546 }
1547
1548 if (init >= 2) {
1549 /* Chip config as documented by National Semi. */
1550 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
3af2861e
GR		 1551 /*
1552 * We voluntarily omit the bank here, in case the
1553 * sequence itself matters. It shouldn't be a problem,
1554 * since nobody else is supposed to access the
1555 * device at that point.
1556 */
1da177e4
LT		 1557 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1558 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1559 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1561 }
1562 }
1563}
1564
f641b588 1565static void pc87360_autodiv(struct device *dev, int nr)
1da177e4 1566{
f641b588 1567 struct pc87360_data *data = dev_get_drvdata(dev);
1da177e4
LT		 1568 u8 old_min = data->fan_min[nr];
1569
1570 /* Increase clock divider if needed and possible */
1571 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1572 || (data->fan[nr] >= 224)) { /* next to overflow */
1573 if ((data->fan_status[nr] & 0x60) != 0x60) {
1574 data->fan_status[nr] += 0x20;
1575 data->fan_min[nr] >>= 1;
1576 data->fan[nr] >>= 1;
b55f3757
GR		 1577 dev_dbg(dev,
1578 "Increasing clock divider to %d for fan %d\n",
449a7a07 1579 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1da177e4
LT		 1580 }
1581 } else {
1582 /* Decrease clock divider if possible */
1583 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1584 && data->fan[nr] < 85 /* bad accuracy */
1585 && (data->fan_status[nr] & 0x60) != 0x00) {
1586 data->fan_status[nr] -= 0x20;
1587 data->fan_min[nr] <<= 1;
1588 data->fan[nr] <<= 1;
b55f3757
GR		 1589 dev_dbg(dev,
1590 "Decreasing clock divider to %d for fan %d\n",
1da177e4 1591 FAN_DIV_FROM_REG(data->fan_status[nr]),
449a7a07 1592 nr + 1);
1da177e4
LT		 1593 }
1594 }
1595
1596 /* Write new fan min if it changed */
1597 if (old_min != data->fan_min[nr]) {
1598 pc87360_write_value(data, LD_FAN, NO_BANK,
1599 PC87360_REG_FAN_MIN(nr),
1600 data->fan_min[nr]);
1601 }
1602}
1603
1604static struct pc87360_data *pc87360_update_device(struct device *dev)
1605{
f641b588 1606 struct pc87360_data *data = dev_get_drvdata(dev);
1da177e4
LT		 1607 u8 i;
1608
9a61bf63 1609 mutex_lock(&data->update_lock);
1da177e4
LT		 1610
1611 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
f641b588 1612 dev_dbg(dev, "Data update\n");
1da177e4
LT		 1613
1614 /* Fans */
1615 for (i = 0; i < data->fannr; i++) {
1616 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1617 data->fan_status[i] =
1618 pc87360_read_value(data, LD_FAN,
1619 NO_BANK, PC87360_REG_FAN_STATUS(i));
1620 data->fan[i] = pc87360_read_value(data, LD_FAN,
1621 NO_BANK, PC87360_REG_FAN(i));
1622 data->fan_min[i] = pc87360_read_value(data,
1623 LD_FAN, NO_BANK,
1624 PC87360_REG_FAN_MIN(i));
1625 /* Change clock divider if needed */
f641b588 1626 pc87360_autodiv(dev, i);
1da177e4
LT		 1627 /* Clear bits and write new divider */
1628 pc87360_write_value(data, LD_FAN, NO_BANK,
1629 PC87360_REG_FAN_STATUS(i),
1630 data->fan_status[i]);
1631 }
1632 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1633 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1634 NO_BANK, PC87360_REG_PWM(i));
1635 }
1636
1637 /* Voltages */
1638 for (i = 0; i < data->innr; i++) {
1639 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1640 PC87365_REG_IN_STATUS);
1641 /* Clear bits */
1642 pc87360_write_value(data, LD_IN, i,
1643 PC87365_REG_IN_STATUS,
1644 data->in_status[i]);
28f74e71 1645 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1da177e4
LT		 1646 data->in[i] = pc87360_read_value(data, LD_IN,
1647 i, PC87365_REG_IN);
1648 }
28f74e71 1649 if (data->in_status[i] & CHAN_ENA) {
1da177e4
LT		 1650 data->in_min[i] = pc87360_read_value(data,
1651 LD_IN, i,
1652 PC87365_REG_IN_MIN);
1653 data->in_max[i] = pc87360_read_value(data,
1654 LD_IN, i,
1655 PC87365_REG_IN_MAX);
1656 if (i >= 11)
1657 data->in_crit[i-11] =
1658 pc87360_read_value(data, LD_IN,
1659 i, PC87365_REG_TEMP_CRIT);
1660 }
1661 }
1662 if (data->innr) {
1663 data->in_alarms = pc87360_read_value(data, LD_IN,
1664 NO_BANK, PC87365_REG_IN_ALARMS1)
1665 | ((pc87360_read_value(data, LD_IN,
1666 NO_BANK, PC87365_REG_IN_ALARMS2)
1667 & 0x07) << 8);
1668 data->vid = (data->vid_conf & 0xE0) ?
1669 pc87360_read_value(data, LD_IN,
1670 NO_BANK, PC87365_REG_VID) : 0x1F;
1671 }
1672
1673 /* Temperatures */
1674 for (i = 0; i < data->tempnr; i++) {
1675 data->temp_status[i] = pc87360_read_value(data,
1676 LD_TEMP, i,
1677 PC87365_REG_TEMP_STATUS);
1678 /* Clear bits */
1679 pc87360_write_value(data, LD_TEMP, i,
1680 PC87365_REG_TEMP_STATUS,
1681 data->temp_status[i]);
28f74e71 1682 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1da177e4
LT		 1683 data->temp[i] = pc87360_read_value(data,
1684 LD_TEMP, i,
1685 PC87365_REG_TEMP);
1686 }
28f74e71 1687 if (data->temp_status[i] & CHAN_ENA) {
1da177e4
LT		 1688 data->temp_min[i] = pc87360_read_value(data,
1689 LD_TEMP, i,
1690 PC87365_REG_TEMP_MIN);
1691 data->temp_max[i] = pc87360_read_value(data,
1692 LD_TEMP, i,
1693 PC87365_REG_TEMP_MAX);
1694 data->temp_crit[i] = pc87360_read_value(data,
1695 LD_TEMP, i,
1696 PC87365_REG_TEMP_CRIT);
1697 }
1698 }
1699 if (data->tempnr) {
1700 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1701 NO_BANK, PC87365_REG_TEMP_ALARMS)
1702 & 0x3F;
1703 }
1704
1705 data->last_updated = jiffies;
1706 data->valid = 1;
1707 }
1708
9a61bf63 1709 mutex_unlock(&data->update_lock);
1da177e4
LT		 1710
1711 return data;
1712}
1713
f641b588
JD		 1714static int __init pc87360_device_add(unsigned short address)
1715{
b9783dce
JD		 1716 struct resource res[3];
1717 int err, i, res_count;
f641b588
JD		 1718
1719 pdev = platform_device_alloc("pc87360", address);
1720 if (!pdev) {
1721 err = -ENOMEM;
9e991c6f 1722 pr_err("Device allocation failed\n");
f641b588
JD		 1723 goto exit;
1724 }
1725
b9783dce
JD		 1726 memset(res, 0, 3 * sizeof(struct resource));
1727 res_count = 0;
f641b588
JD		 1728 for (i = 0; i < 3; i++) {
1729 if (!extra_isa[i])
1730 continue;
b9783dce
JD		 1731 res[res_count].start = extra_isa[i];
1732 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1733 res[res_count].name = "pc87360",
1734 res[res_count].flags = IORESOURCE_IO,
b9acb64a 1735
b9783dce 1736 err = acpi_check_resource_conflict(&res[res_count]);
b9acb64a
JD		 1737 if (err)
1738 goto exit_device_put;
1739
b9783dce
JD		 1740 res_count++;
1741 }
1742
1743 err = platform_device_add_resources(pdev, res, res_count);
1744 if (err) {
9e991c6f 1745 pr_err("Device resources addition failed (%d)\n", err);
b9783dce 1746 goto exit_device_put;
f641b588
JD		 1747 }
1748
1749 err = platform_device_add(pdev);
1750 if (err) {
9e991c6f 1751 pr_err("Device addition failed (%d)\n", err);
f641b588
JD		 1752 goto exit_device_put;
1753 }
1754
1755 return 0;
1756
1757exit_device_put:
1758 platform_device_put(pdev);
1759exit:
1760 return err;
1761}
1762
1da177e4
LT		 1763static int __init pc87360_init(void)
1764{
f641b588
JD		 1765 int err, i;
1766 unsigned short address = 0;
1da177e4
LT		 1767
1768 if (pc87360_find(0x2e, &devid, extra_isa)
1769 && pc87360_find(0x4e, &devid, extra_isa)) {
9e991c6f 1770 pr_warn("PC8736x not detected, module not inserted\n");
1da177e4
LT		 1771 return -ENODEV;
1772 }
1773
1774 /* Arbitrarily pick one of the addresses */
1775 for (i = 0; i < 3; i++) {
1776 if (extra_isa[i] != 0x0000) {
2d8672c5 1777 address = extra_isa[i];
1da177e4
LT		 1778 break;
1779 }
1780 }
1781
2d8672c5 1782 if (address == 0x0000) {
9e991c6f 1783 pr_warn("No active logical device, module not inserted\n");
1da177e4
LT		 1784 return -ENODEV;
1785 }
1786
f641b588
JD		 1787 err = platform_driver_register(&pc87360_driver);
1788 if (err)
1789 goto exit;
1790
1791 /* Sets global pdev as a side effect */
1792 err = pc87360_device_add(address);
1793 if (err)
1794 goto exit_driver;
1795
1796 return 0;
1797
1798 exit_driver:
1799 platform_driver_unregister(&pc87360_driver);
1800 exit:
1801 return err;
1da177e4
LT		 1802}
1803
1804static void __exit pc87360_exit(void)
1805{
f641b588
JD		 1806 platform_device_unregister(pdev);
1807 platform_driver_unregister(&pc87360_driver);
1da177e4
LT		 1808}
1809
1810
7c81c60f 1811MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1da177e4
LT		 1812MODULE_DESCRIPTION("PC8736x hardware monitor");
1813MODULE_LICENSE("GPL");
1814
1815module_init(pc87360_init);
1816module_exit(pc87360_exit);
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