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1/*
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>
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
36#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
37
38#include <linux/module.h>
39#include <linux/init.h>
40#include <linux/slab.h>
41#include <linux/jiffies.h>
42#include <linux/platform_device.h>
43#include <linux/hwmon.h>
44#include <linux/hwmon-sysfs.h>
45#include <linux/hwmon-vid.h>
46#include <linux/err.h>
47#include <linux/mutex.h>
48#include <linux/acpi.h>
49#include <linux/io.h>
50
51static u8 devid;
52static struct platform_device *pdev;
53static unsigned short extra_isa[3];
54static u8 confreg[4];
55
56static int init = 1;
57module_param(init, int, 0);
58MODULE_PARM_DESC(init,
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");
64
65static unsigned short force_id;
66module_param(force_id, ushort, 0);
67MODULE_PARM_DESC(force_id, "Override the detected device ID");
68
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 */
81#define LDNI_MAX 3
82static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
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);
91 outb(val, sioaddr+1);
92}
93
94static inline int superio_inb(int sioaddr, int reg)
95{
96 outb(reg, sioaddr);
97 return inb(sioaddr+1);
98}
99
100static inline void superio_exit(int sioaddr)
101{
102 outb(0x02, sioaddr);
103 outb(0x02, sioaddr+1);
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
125#define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
126 480000 / ((val)*(div)))
127#define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
128 480000 / ((val)*(div)))
129#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
130#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
131
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)
135
136#define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
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
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))
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/*
186 * Device data
187 */
188
189struct pc87360_data {
190 const char *name;
191 struct device *hwmon_dev;
192 struct mutex lock;
193 struct mutex update_lock;
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
230static int pc87360_probe(struct platform_device *pdev);
231static int __devexit pc87360_remove(struct platform_device *pdev);
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);
237static void pc87360_init_device(struct platform_device *pdev,
238 int use_thermistors);
239static struct pc87360_data *pc87360_update_device(struct device *dev);
240
241/*
242 * Driver data
243 */
244
245static struct platform_driver pc87360_driver = {
246 .driver = {
247 .owner = THIS_MODULE,
248 .name = "pc87360",
249 },
250 .probe = pc87360_probe,
251 .remove = __devexit_p(pc87360_remove),
252};
253
254/*
255 * Sysfs stuff
256 */
257
258static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
259{
260 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
261 struct pc87360_data *data = pc87360_update_device(dev);
262 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
263 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
264}
265static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
266{
267 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
268 struct pc87360_data *data = pc87360_update_device(dev);
269 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
270 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
271}
272static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
273{
274 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
275 struct pc87360_data *data = pc87360_update_device(dev);
276 return sprintf(buf, "%u\n",
277 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
278}
279static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
280{
281 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
282 struct pc87360_data *data = pc87360_update_device(dev);
283 return sprintf(buf, "%u\n",
284 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
285}
286static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
287 size_t count)
288{
289 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
290 struct pc87360_data *data = dev_get_drvdata(dev);
291 long fan_min = simple_strtol(buf, NULL, 10);
292
293 mutex_lock(&data->update_lock);
294 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
295
296 /* If it wouldn't fit, change clock divisor */
297 while (fan_min > 255
298 && (data->fan_status[attr->index] & 0x60) != 0x60) {
299 fan_min >>= 1;
300 data->fan[attr->index] >>= 1;
301 data->fan_status[attr->index] += 0x20;
302 }
303 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
304 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
305 data->fan_min[attr->index]);
306
307 /* Write new divider, preserve alarm bits */
308 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
309 data->fan_status[attr->index] & 0xF9);
310 mutex_unlock(&data->update_lock);
311
312 return count;
313}
314
315static struct sensor_device_attribute fan_input[] = {
316 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
317 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
318 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
319};
320static struct sensor_device_attribute fan_status[] = {
321 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
322 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
323 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
324};
325static struct sensor_device_attribute fan_div[] = {
326 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
327 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
328 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
329};
330static struct sensor_device_attribute fan_min[] = {
331 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
332 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
333 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
334};
335
336#define FAN_UNIT_ATTRS(X) \
337 &fan_input[X].dev_attr.attr, \
338 &fan_status[X].dev_attr.attr, \
339 &fan_div[X].dev_attr.attr, \
340 &fan_min[X].dev_attr.attr
341
342static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
343{
344 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
345 struct pc87360_data *data = pc87360_update_device(dev);
346 return sprintf(buf, "%u\n",
347 PWM_FROM_REG(data->pwm[attr->index],
348 FAN_CONFIG_INVERT(data->fan_conf,
349 attr->index)));
350}
351static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
352 size_t count)
353{
354 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
355 struct pc87360_data *data = dev_get_drvdata(dev);
356 long val = simple_strtol(buf, NULL, 10);
357
358 mutex_lock(&data->update_lock);
359 data->pwm[attr->index] = PWM_TO_REG(val,
360 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
361 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
362 data->pwm[attr->index]);
363 mutex_unlock(&data->update_lock);
364 return count;
365}
366
367static struct sensor_device_attribute pwm[] = {
368 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
369 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
370 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
371};
372
373static struct attribute * pc8736x_fan_attr_array[] = {
374 FAN_UNIT_ATTRS(0),
375 FAN_UNIT_ATTRS(1),
376 FAN_UNIT_ATTRS(2),
377 &pwm[0].dev_attr.attr,
378 &pwm[1].dev_attr.attr,
379 &pwm[2].dev_attr.attr,
380 NULL
381};
382static const struct attribute_group pc8736x_fan_group = {
383 .attrs = pc8736x_fan_attr_array,
384};
385
386static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
387{
388 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
389 struct pc87360_data *data = pc87360_update_device(dev);
390 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
391 data->in_vref));
392}
393static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
394{
395 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
396 struct pc87360_data *data = pc87360_update_device(dev);
397 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
398 data->in_vref));
399}
400static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
401{
402 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
403 struct pc87360_data *data = pc87360_update_device(dev);
404 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
405 data->in_vref));
406}
407static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
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", data->in_status[attr->index]);
412}
413static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
414 size_t count)
415{
416 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
417 struct pc87360_data *data = dev_get_drvdata(dev);
418 long val = simple_strtol(buf, NULL, 10);
419
420 mutex_lock(&data->update_lock);
421 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
422 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
423 data->in_min[attr->index]);
424 mutex_unlock(&data->update_lock);
425 return count;
426}
427static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
428 size_t count)
429{
430 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
431 struct pc87360_data *data = dev_get_drvdata(dev);
432 long val = simple_strtol(buf, NULL, 10);
433
434 mutex_lock(&data->update_lock);
435 data->in_max[attr->index] = IN_TO_REG(val,
436 data->in_vref);
437 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
438 data->in_max[attr->index]);
439 mutex_unlock(&data->update_lock);
440 return count;
441}
442
443static struct sensor_device_attribute in_input[] = {
444 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
445 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
446 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
447 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
448 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
449 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
450 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
451 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
452 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
453 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
454 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
455};
456static struct sensor_device_attribute in_status[] = {
457 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
458 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
459 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
460 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
461 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
462 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
463 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
464 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
465 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
466 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
467 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
468};
469static struct sensor_device_attribute in_min[] = {
470 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
471 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
472 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
473 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
474 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
475 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
476 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
477 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
478 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
479 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
480 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
481};
482static struct sensor_device_attribute in_max[] = {
483 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
484 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
485 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
486 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
487 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
488 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
489 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
490 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
491 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
492 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
493 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
494};
495
496/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
497#define CHAN_ALM_MIN 0x02 /* min limit crossed */
498#define CHAN_ALM_MAX 0x04 /* max limit exceeded */
499#define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
500
501/* show_in_min/max_alarm() reads data from the per-channel status
502 register (sec 11.5.12), not the vin event status registers (sec
503 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
504
505static ssize_t show_in_min_alarm(struct device *dev,
506 struct device_attribute *devattr, char *buf)
507{
508 struct pc87360_data *data = pc87360_update_device(dev);
509 unsigned nr = to_sensor_dev_attr(devattr)->index;
510
511 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
512}
513static ssize_t show_in_max_alarm(struct device *dev,
514 struct device_attribute *devattr, char *buf)
515{
516 struct pc87360_data *data = pc87360_update_device(dev);
517 unsigned nr = to_sensor_dev_attr(devattr)->index;
518
519 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
520}
521
522static struct sensor_device_attribute in_min_alarm[] = {
523 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
524 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
525 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
526 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
527 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
528 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
529 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
530 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
531 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
532 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
533 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
534};
535static struct sensor_device_attribute in_max_alarm[] = {
536 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
537 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
538 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
539 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
540 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
541 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
542 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
543 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
544 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
545 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
546 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
547};
548
549#define VIN_UNIT_ATTRS(X) \
550 &in_input[X].dev_attr.attr, \
551 &in_status[X].dev_attr.attr, \
552 &in_min[X].dev_attr.attr, \
553 &in_max[X].dev_attr.attr, \
554 &in_min_alarm[X].dev_attr.attr, \
555 &in_max_alarm[X].dev_attr.attr
556
557static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
558{
559 struct pc87360_data *data = pc87360_update_device(dev);
560 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
561}
562static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
563
564static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
565{
566 struct pc87360_data *data = dev_get_drvdata(dev);
567 return sprintf(buf, "%u\n", data->vrm);
568}
569static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
570{
571 struct pc87360_data *data = dev_get_drvdata(dev);
572 data->vrm = simple_strtoul(buf, NULL, 10);
573 return count;
574}
575static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
576
577static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
578{
579 struct pc87360_data *data = pc87360_update_device(dev);
580 return sprintf(buf, "%u\n", data->in_alarms);
581}
582static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
583
584static struct attribute *pc8736x_vin_attr_array[] = {
585 VIN_UNIT_ATTRS(0),
586 VIN_UNIT_ATTRS(1),
587 VIN_UNIT_ATTRS(2),
588 VIN_UNIT_ATTRS(3),
589 VIN_UNIT_ATTRS(4),
590 VIN_UNIT_ATTRS(5),
591 VIN_UNIT_ATTRS(6),
592 VIN_UNIT_ATTRS(7),
593 VIN_UNIT_ATTRS(8),
594 VIN_UNIT_ATTRS(9),
595 VIN_UNIT_ATTRS(10),
596 &dev_attr_cpu0_vid.attr,
597 &dev_attr_vrm.attr,
598 &dev_attr_alarms_in.attr,
599 NULL
600};
601static const struct attribute_group pc8736x_vin_group = {
602 .attrs = pc8736x_vin_attr_array,
603};
604
605static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
606{
607 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
608 struct pc87360_data *data = pc87360_update_device(dev);
609 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
610 data->in_vref));
611}
612static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
613{
614 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
615 struct pc87360_data *data = pc87360_update_device(dev);
616 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
617 data->in_vref));
618}
619static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
620{
621 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
622 struct pc87360_data *data = pc87360_update_device(dev);
623 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
624 data->in_vref));
625}
626static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
627{
628 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
629 struct pc87360_data *data = pc87360_update_device(dev);
630 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
631 data->in_vref));
632}
633static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
634{
635 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
636 struct pc87360_data *data = pc87360_update_device(dev);
637 return sprintf(buf, "%u\n", data->in_status[attr->index]);
638}
639static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
640 size_t count)
641{
642 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
643 struct pc87360_data *data = dev_get_drvdata(dev);
644 long val = simple_strtol(buf, NULL, 10);
645
646 mutex_lock(&data->update_lock);
647 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
648 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
649 data->in_min[attr->index]);
650 mutex_unlock(&data->update_lock);
651 return count;
652}
653static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
654 size_t count)
655{
656 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
657 struct pc87360_data *data = dev_get_drvdata(dev);
658 long val = simple_strtol(buf, NULL, 10);
659
660 mutex_lock(&data->update_lock);
661 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
662 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
663 data->in_max[attr->index]);
664 mutex_unlock(&data->update_lock);
665 return count;
666}
667static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
668 size_t count)
669{
670 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
671 struct pc87360_data *data = dev_get_drvdata(dev);
672 long val = simple_strtol(buf, NULL, 10);
673
674 mutex_lock(&data->update_lock);
675 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
676 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
677 data->in_crit[attr->index-11]);
678 mutex_unlock(&data->update_lock);
679 return count;
680}
681
682/* the +11 term below reflects the fact that VLM units 11,12,13 are
683 used in the chip to measure voltage across the thermistors
684*/
685static struct sensor_device_attribute therm_input[] = {
686 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
687 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
688 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
689};
690static struct sensor_device_attribute therm_status[] = {
691 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
692 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
693 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
694};
695static struct sensor_device_attribute therm_min[] = {
696 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
697 show_therm_min, set_therm_min, 0+11),
698 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
699 show_therm_min, set_therm_min, 1+11),
700 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
701 show_therm_min, set_therm_min, 2+11),
702};
703static struct sensor_device_attribute therm_max[] = {
704 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
705 show_therm_max, set_therm_max, 0+11),
706 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
707 show_therm_max, set_therm_max, 1+11),
708 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
709 show_therm_max, set_therm_max, 2+11),
710};
711static struct sensor_device_attribute therm_crit[] = {
712 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
713 show_therm_crit, set_therm_crit, 0+11),
714 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
715 show_therm_crit, set_therm_crit, 1+11),
716 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
717 show_therm_crit, set_therm_crit, 2+11),
718};
719
720/* show_therm_min/max_alarm() reads data from the per-channel voltage
721 status register (sec 11.5.12) */
722
723static ssize_t show_therm_min_alarm(struct device *dev,
724 struct device_attribute *devattr, char *buf)
725{
726 struct pc87360_data *data = pc87360_update_device(dev);
727 unsigned nr = to_sensor_dev_attr(devattr)->index;
728
729 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
730}
731static ssize_t show_therm_max_alarm(struct device *dev,
732 struct device_attribute *devattr, char *buf)
733{
734 struct pc87360_data *data = pc87360_update_device(dev);
735 unsigned nr = to_sensor_dev_attr(devattr)->index;
736
737 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
738}
739static ssize_t show_therm_crit_alarm(struct device *dev,
740 struct device_attribute *devattr, char *buf)
741{
742 struct pc87360_data *data = pc87360_update_device(dev);
743 unsigned nr = to_sensor_dev_attr(devattr)->index;
744
745 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
746}
747
748static struct sensor_device_attribute therm_min_alarm[] = {
749 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
750 show_therm_min_alarm, NULL, 0+11),
751 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
752 show_therm_min_alarm, NULL, 1+11),
753 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
754 show_therm_min_alarm, NULL, 2+11),
755};
756static struct sensor_device_attribute therm_max_alarm[] = {
757 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
758 show_therm_max_alarm, NULL, 0+11),
759 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
760 show_therm_max_alarm, NULL, 1+11),
761 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
762 show_therm_max_alarm, NULL, 2+11),
763};
764static struct sensor_device_attribute therm_crit_alarm[] = {
765 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
766 show_therm_crit_alarm, NULL, 0+11),
767 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
768 show_therm_crit_alarm, NULL, 1+11),
769 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
770 show_therm_crit_alarm, NULL, 2+11),
771};
772
773#define THERM_UNIT_ATTRS(X) \
774 &therm_input[X].dev_attr.attr, \
775 &therm_status[X].dev_attr.attr, \
776 &therm_min[X].dev_attr.attr, \
777 &therm_max[X].dev_attr.attr, \
778 &therm_crit[X].dev_attr.attr, \
779 &therm_min_alarm[X].dev_attr.attr, \
780 &therm_max_alarm[X].dev_attr.attr, \
781 &therm_crit_alarm[X].dev_attr.attr
782
783static struct attribute * pc8736x_therm_attr_array[] = {
784 THERM_UNIT_ATTRS(0),
785 THERM_UNIT_ATTRS(1),
786 THERM_UNIT_ATTRS(2),
787 NULL
788};
789static const struct attribute_group pc8736x_therm_group = {
790 .attrs = pc8736x_therm_attr_array,
791};
792
793static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
794{
795 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
796 struct pc87360_data *data = pc87360_update_device(dev);
797 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
798}
799static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
800{
801 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
802 struct pc87360_data *data = pc87360_update_device(dev);
803 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
804}
805static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
806{
807 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
808 struct pc87360_data *data = pc87360_update_device(dev);
809 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
810}
811static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
812{
813 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
814 struct pc87360_data *data = pc87360_update_device(dev);
815 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
816}
817static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
818{
819 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
820 struct pc87360_data *data = pc87360_update_device(dev);
821 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
822}
823static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
824 size_t count)
825{
826 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
827 struct pc87360_data *data = dev_get_drvdata(dev);
828 long val = simple_strtol(buf, NULL, 10);
829
830 mutex_lock(&data->update_lock);
831 data->temp_min[attr->index] = TEMP_TO_REG(val);
832 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
833 data->temp_min[attr->index]);
834 mutex_unlock(&data->update_lock);
835 return count;
836}
837static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
838 size_t count)
839{
840 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
841 struct pc87360_data *data = dev_get_drvdata(dev);
842 long val = simple_strtol(buf, NULL, 10);
843
844 mutex_lock(&data->update_lock);
845 data->temp_max[attr->index] = TEMP_TO_REG(val);
846 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
847 data->temp_max[attr->index]);
848 mutex_unlock(&data->update_lock);
849 return count;
850}
851static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
852 size_t count)
853{
854 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
855 struct pc87360_data *data = dev_get_drvdata(dev);
856 long val = simple_strtol(buf, NULL, 10);
857
858 mutex_lock(&data->update_lock);
859 data->temp_crit[attr->index] = TEMP_TO_REG(val);
860 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
861 data->temp_crit[attr->index]);
862 mutex_unlock(&data->update_lock);
863 return count;
864}
865
866static struct sensor_device_attribute temp_input[] = {
867 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
868 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
869 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
870};
871static struct sensor_device_attribute temp_status[] = {
872 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
873 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
874 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
875};
876static struct sensor_device_attribute temp_min[] = {
877 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
878 show_temp_min, set_temp_min, 0),
879 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
880 show_temp_min, set_temp_min, 1),
881 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
882 show_temp_min, set_temp_min, 2),
883};
884static struct sensor_device_attribute temp_max[] = {
885 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
886 show_temp_max, set_temp_max, 0),
887 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
888 show_temp_max, set_temp_max, 1),
889 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
890 show_temp_max, set_temp_max, 2),
891};
892static struct sensor_device_attribute temp_crit[] = {
893 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
894 show_temp_crit, set_temp_crit, 0),
895 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
896 show_temp_crit, set_temp_crit, 1),
897 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
898 show_temp_crit, set_temp_crit, 2),
899};
900
901static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
902{
903 struct pc87360_data *data = pc87360_update_device(dev);
904 return sprintf(buf, "%u\n", data->temp_alarms);
905}
906static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
907
908/* show_temp_min/max_alarm() reads data from the per-channel status
909 register (sec 12.3.7), not the temp event status registers (sec
910 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */
911
912static ssize_t show_temp_min_alarm(struct device *dev,
913 struct device_attribute *devattr, char *buf)
914{
915 struct pc87360_data *data = pc87360_update_device(dev);
916 unsigned nr = to_sensor_dev_attr(devattr)->index;
917
918 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
919}
920static ssize_t show_temp_max_alarm(struct device *dev,
921 struct device_attribute *devattr, char *buf)
922{
923 struct pc87360_data *data = pc87360_update_device(dev);
924 unsigned nr = to_sensor_dev_attr(devattr)->index;
925
926 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
927}
928static ssize_t show_temp_crit_alarm(struct device *dev,
929 struct device_attribute *devattr, char *buf)
930{
931 struct pc87360_data *data = pc87360_update_device(dev);
932 unsigned nr = to_sensor_dev_attr(devattr)->index;
933
934 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
935}
936
937static struct sensor_device_attribute temp_min_alarm[] = {
938 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
939 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
940 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
941};
942static struct sensor_device_attribute temp_max_alarm[] = {
943 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
944 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
945 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
946};
947static struct sensor_device_attribute temp_crit_alarm[] = {
948 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
949 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
950 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
951};
952
953#define TEMP_FAULT 0x40 /* open diode */
954static ssize_t show_temp_fault(struct device *dev,
955 struct device_attribute *devattr, char *buf)
956{
957 struct pc87360_data *data = pc87360_update_device(dev);
958 unsigned nr = to_sensor_dev_attr(devattr)->index;
959
960 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
961}
962static struct sensor_device_attribute temp_fault[] = {
963 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
964 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
965 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
966};
967
968#define TEMP_UNIT_ATTRS(X) \
969 &temp_input[X].dev_attr.attr, \
970 &temp_status[X].dev_attr.attr, \
971 &temp_min[X].dev_attr.attr, \
972 &temp_max[X].dev_attr.attr, \
973 &temp_crit[X].dev_attr.attr, \
974 &temp_min_alarm[X].dev_attr.attr, \
975 &temp_max_alarm[X].dev_attr.attr, \
976 &temp_crit_alarm[X].dev_attr.attr, \
977 &temp_fault[X].dev_attr.attr
978
979static struct attribute * pc8736x_temp_attr_array[] = {
980 TEMP_UNIT_ATTRS(0),
981 TEMP_UNIT_ATTRS(1),
982 TEMP_UNIT_ATTRS(2),
983 /* include the few miscellaneous atts here */
984 &dev_attr_alarms_temp.attr,
985 NULL
986};
987static const struct attribute_group pc8736x_temp_group = {
988 .attrs = pc8736x_temp_attr_array,
989};
990
991static ssize_t show_name(struct device *dev,
992 struct device_attribute *devattr, char *buf)
993{
994 struct pc87360_data *data = dev_get_drvdata(dev);
995 return sprintf(buf, "%s\n", data->name);
996}
997static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
998
999/*
1000 * Device detection, registration and update
1001 */
1002
1003static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1004{
1005 u16 val;
1006 int i;
1007 int nrdev; /* logical device count */
1008
1009 /* No superio_enter */
1010
1011 /* Identify device */
1012 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1013 switch (val) {
1014 case 0xE1: /* PC87360 */
1015 case 0xE8: /* PC87363 */
1016 case 0xE4: /* PC87364 */
1017 nrdev = 1;
1018 break;
1019 case 0xE5: /* PC87365 */
1020 case 0xE9: /* PC87366 */
1021 nrdev = 3;
1022 break;
1023 default:
1024 superio_exit(sioaddr);
1025 return -ENODEV;
1026 }
1027 /* Remember the device id */
1028 *devid = val;
1029
1030 for (i = 0; i < nrdev; i++) {
1031 /* select logical device */
1032 superio_outb(sioaddr, DEV, logdev[i]);
1033
1034 val = superio_inb(sioaddr, ACT);
1035 if (!(val & 0x01)) {
1036 pr_info("Device 0x%02x not activated\n", logdev[i]);
1037 continue;
1038 }
1039
1040 val = (superio_inb(sioaddr, BASE) << 8)
1041 | superio_inb(sioaddr, BASE + 1);
1042 if (!val) {
1043 pr_info("Base address not set for device 0x%02x\n",
1044 logdev[i]);
1045 continue;
1046 }
1047
1048 addresses[i] = val;
1049
1050 if (i==0) { /* Fans */
1051 confreg[0] = superio_inb(sioaddr, 0xF0);
1052 confreg[1] = superio_inb(sioaddr, 0xF1);
1053
1054 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1055 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1056 (confreg[0] >> 4) & 1);
1057 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1058 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1059 (confreg[0] >> 7) & 1);
1060 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1061 confreg[1] & 1, (confreg[1] >> 1) & 1,
1062 (confreg[1] >> 2) & 1);
1063 } else if (i==1) { /* Voltages */
1064 /* Are we using thermistors? */
1065 if (*devid == 0xE9) { /* PC87366 */
1066 /* These registers are not logical-device
1067 specific, just that we won't need them if
1068 we don't use the VLM device */
1069 confreg[2] = superio_inb(sioaddr, 0x2B);
1070 confreg[3] = superio_inb(sioaddr, 0x25);
1071
1072 if (confreg[2] & 0x40) {
1073 pr_info("Using thermistors for "
1074 "temperature monitoring\n");
1075 }
1076 if (confreg[3] & 0xE0) {
1077 pr_info("VID inputs routed (mode %u)\n",
1078 confreg[3] >> 5);
1079 }
1080 }
1081 }
1082 }
1083
1084 superio_exit(sioaddr);
1085 return 0;
1086}
1087
1088static int __devinit pc87360_probe(struct platform_device *pdev)
1089{
1090 int i;
1091 struct pc87360_data *data;
1092 int err = 0;
1093 const char *name = "pc87360";
1094 int use_thermistors = 0;
1095 struct device *dev = &pdev->dev;
1096
1097 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1098 return -ENOMEM;
1099
1100 data->fannr = 2;
1101 data->innr = 0;
1102 data->tempnr = 0;
1103
1104 switch (devid) {
1105 case 0xe8:
1106 name = "pc87363";
1107 break;
1108 case 0xe4:
1109 name = "pc87364";
1110 data->fannr = 3;
1111 break;
1112 case 0xe5:
1113 name = "pc87365";
1114 data->fannr = extra_isa[0] ? 3 : 0;
1115 data->innr = extra_isa[1] ? 11 : 0;
1116 data->tempnr = extra_isa[2] ? 2 : 0;
1117 break;
1118 case 0xe9:
1119 name = "pc87366";
1120 data->fannr = extra_isa[0] ? 3 : 0;
1121 data->innr = extra_isa[1] ? 14 : 0;
1122 data->tempnr = extra_isa[2] ? 3 : 0;
1123 break;
1124 }
1125
1126 data->name = name;
1127 data->valid = 0;
1128 mutex_init(&data->lock);
1129 mutex_init(&data->update_lock);
1130 platform_set_drvdata(pdev, data);
1131
1132 for (i = 0; i < LDNI_MAX; i++) {
1133 if (((data->address[i] = extra_isa[i]))
1134 && !request_region(extra_isa[i], PC87360_EXTENT,
1135 pc87360_driver.driver.name)) {
1136 dev_err(dev, "Region 0x%x-0x%x already "
1137 "in use!\n", extra_isa[i],
1138 extra_isa[i]+PC87360_EXTENT-1);
1139 for (i--; i >= 0; i--)
1140 release_region(extra_isa[i], PC87360_EXTENT);
1141 err = -EBUSY;
1142 goto ERROR1;
1143 }
1144 }
1145
1146 /* Retrieve the fans configuration from Super-I/O space */
1147 if (data->fannr)
1148 data->fan_conf = confreg[0] | (confreg[1] << 8);
1149
1150 /* Use the correct reference voltage
1151 Unless both the VLM and the TMS logical devices agree to
1152 use an external Vref, the internal one is used. */
1153 if (data->innr) {
1154 i = pc87360_read_value(data, LD_IN, NO_BANK,
1155 PC87365_REG_IN_CONFIG);
1156 if (data->tempnr) {
1157 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1158 PC87365_REG_TEMP_CONFIG);
1159 }
1160 data->in_vref = (i&0x02) ? 3025 : 2966;
1161 dev_dbg(dev, "Using %s reference voltage\n",
1162 (i&0x02) ? "external" : "internal");
1163
1164 data->vid_conf = confreg[3];
1165 data->vrm = vid_which_vrm();
1166 }
1167
1168 /* Fan clock dividers may be needed before any data is read */
1169 for (i = 0; i < data->fannr; i++) {
1170 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1171 data->fan_status[i] = pc87360_read_value(data,
1172 LD_FAN, NO_BANK,
1173 PC87360_REG_FAN_STATUS(i));
1174 }
1175
1176 if (init > 0) {
1177 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1178 use_thermistors = confreg[2] & 0x40;
1179
1180 pc87360_init_device(pdev, use_thermistors);
1181 }
1182
1183 /* Register all-or-nothing sysfs groups */
1184
1185 if (data->innr &&
1186 (err = sysfs_create_group(&dev->kobj,
1187 &pc8736x_vin_group)))
1188 goto ERROR3;
1189
1190 if (data->innr == 14 &&
1191 (err = sysfs_create_group(&dev->kobj,
1192 &pc8736x_therm_group)))
1193 goto ERROR3;
1194
1195 /* create device attr-files for varying sysfs groups */
1196
1197 if (data->tempnr) {
1198 for (i = 0; i < data->tempnr; i++) {
1199 if ((err = device_create_file(dev,
1200 &temp_input[i].dev_attr))
1201 || (err = device_create_file(dev,
1202 &temp_min[i].dev_attr))
1203 || (err = device_create_file(dev,
1204 &temp_max[i].dev_attr))
1205 || (err = device_create_file(dev,
1206 &temp_crit[i].dev_attr))
1207 || (err = device_create_file(dev,
1208 &temp_status[i].dev_attr))
1209 || (err = device_create_file(dev,
1210 &temp_min_alarm[i].dev_attr))
1211 || (err = device_create_file(dev,
1212 &temp_max_alarm[i].dev_attr))
1213 || (err = device_create_file(dev,
1214 &temp_crit_alarm[i].dev_attr))
1215 || (err = device_create_file(dev,
1216 &temp_fault[i].dev_attr)))
1217 goto ERROR3;
1218 }
1219 if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1220 goto ERROR3;
1221 }
1222
1223 for (i = 0; i < data->fannr; i++) {
1224 if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1225 && ((err = device_create_file(dev,
1226 &fan_input[i].dev_attr))
1227 || (err = device_create_file(dev,
1228 &fan_min[i].dev_attr))
1229 || (err = device_create_file(dev,
1230 &fan_div[i].dev_attr))
1231 || (err = device_create_file(dev,
1232 &fan_status[i].dev_attr))))
1233 goto ERROR3;
1234
1235 if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1236 && (err = device_create_file(dev, &pwm[i].dev_attr)))
1237 goto ERROR3;
1238 }
1239
1240 if ((err = device_create_file(dev, &dev_attr_name)))
1241 goto ERROR3;
1242
1243 data->hwmon_dev = hwmon_device_register(dev);
1244 if (IS_ERR(data->hwmon_dev)) {
1245 err = PTR_ERR(data->hwmon_dev);
1246 goto ERROR3;
1247 }
1248 return 0;
1249
1250ERROR3:
1251 device_remove_file(dev, &dev_attr_name);
1252 /* can still remove groups whose members were added individually */
1253 sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1254 sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1255 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1256 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1257 for (i = 0; i < 3; i++) {
1258 if (data->address[i]) {
1259 release_region(data->address[i], PC87360_EXTENT);
1260 }
1261 }
1262ERROR1:
1263 kfree(data);
1264 return err;
1265}
1266
1267static int __devexit pc87360_remove(struct platform_device *pdev)
1268{
1269 struct pc87360_data *data = platform_get_drvdata(pdev);
1270 int i;
1271
1272 hwmon_device_unregister(data->hwmon_dev);
1273
1274 device_remove_file(&pdev->dev, &dev_attr_name);
1275 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1276 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1277 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1278 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1279
1280 for (i = 0; i < 3; i++) {
1281 if (data->address[i]) {
1282 release_region(data->address[i], PC87360_EXTENT);
1283 }
1284 }
1285 kfree(data);
1286
1287 return 0;
1288}
1289
1290/* ldi is the logical device index
1291 bank is for voltages and temperatures only */
1292static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1293 u8 reg)
1294{
1295 int res;
1296
1297 mutex_lock(&(data->lock));
1298 if (bank != NO_BANK)
1299 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1300 res = inb_p(data->address[ldi] + reg);
1301 mutex_unlock(&(data->lock));
1302
1303 return res;
1304}
1305
1306static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1307 u8 reg, u8 value)
1308{
1309 mutex_lock(&(data->lock));
1310 if (bank != NO_BANK)
1311 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1312 outb_p(value, data->address[ldi] + reg);
1313 mutex_unlock(&(data->lock));
1314}
1315
1316/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1317#define CHAN_CNVRTD 0x80 /* new data ready */
1318#define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1319#define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1320#define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1321
1322#define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1323#define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1324#define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1325
1326static void pc87360_init_device(struct platform_device *pdev,
1327 int use_thermistors)
1328{
1329 struct pc87360_data *data = platform_get_drvdata(pdev);
1330 int i, nr;
1331 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1332 const u8 init_temp[3] = { 2, 2, 1 };
1333 u8 reg;
1334
1335 if (init >= 2 && data->innr) {
1336 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1337 PC87365_REG_IN_CONVRATE);
1338 dev_info(&pdev->dev, "VLM conversion set to "
1339 "1s period, 160us delay\n");
1340 pc87360_write_value(data, LD_IN, NO_BANK,
1341 PC87365_REG_IN_CONVRATE,
1342 (reg & 0xC0) | 0x11);
1343 }
1344
1345 nr = data->innr < 11 ? data->innr : 11;
1346 for (i = 0; i < nr; i++) {
1347 reg = pc87360_read_value(data, LD_IN, i,
1348 PC87365_REG_IN_STATUS);
1349 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1350 if (init >= init_in[i]) {
1351 /* Forcibly enable voltage channel */
1352 if (!(reg & CHAN_ENA)) {
1353 dev_dbg(&pdev->dev, "Forcibly "
1354 "enabling in%d\n", i);
1355 pc87360_write_value(data, LD_IN, i,
1356 PC87365_REG_IN_STATUS,
1357 (reg & 0x68) | 0x87);
1358 }
1359 }
1360 }
1361
1362 /* We can't blindly trust the Super-I/O space configuration bit,
1363 most BIOS won't set it properly */
1364 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1365 for (i = 11; i < data->innr; i++) {
1366 reg = pc87360_read_value(data, LD_IN, i,
1367 PC87365_REG_TEMP_STATUS);
1368 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1369 /* thermistors are temp[4-6], measured on vin[11-14] */
1370 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1371 }
1372 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1373
1374 i = use_thermistors ? 2 : 0;
1375 for (; i < data->tempnr; i++) {
1376 reg = pc87360_read_value(data, LD_TEMP, i,
1377 PC87365_REG_TEMP_STATUS);
1378 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i+1, reg);
1379 if (init >= init_temp[i]) {
1380 /* Forcibly enable temperature channel */
1381 if (!(reg & CHAN_ENA)) {
1382 dev_dbg(&pdev->dev, "Forcibly "
1383 "enabling temp%d\n", i+1);
1384 pc87360_write_value(data, LD_TEMP, i,
1385 PC87365_REG_TEMP_STATUS,
1386 0xCF);
1387 }
1388 }
1389 }
1390
1391 if (use_thermistors) {
1392 for (i = 11; i < data->innr; i++) {
1393 if (init >= init_in[i]) {
1394 /* The pin may already be used by thermal
1395 diodes */
1396 reg = pc87360_read_value(data, LD_TEMP,
1397 (i-11)/2, PC87365_REG_TEMP_STATUS);
1398 if (reg & CHAN_ENA) {
1399 dev_dbg(&pdev->dev, "Skipping "
1400 "temp%d, pin already in use "
1401 "by temp%d\n", i-7, (i-11)/2);
1402 continue;
1403 }
1404
1405 /* Forcibly enable thermistor channel */
1406 reg = pc87360_read_value(data, LD_IN, i,
1407 PC87365_REG_IN_STATUS);
1408 if (!(reg & CHAN_ENA)) {
1409 dev_dbg(&pdev->dev, "Forcibly "
1410 "enabling temp%d\n", i-7);
1411 pc87360_write_value(data, LD_IN, i,
1412 PC87365_REG_TEMP_STATUS,
1413 (reg & 0x60) | 0x8F);
1414 }
1415 }
1416 }
1417 }
1418
1419 if (data->innr) {
1420 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1421 PC87365_REG_IN_CONFIG);
1422 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1423 if (reg & CHAN_ENA) {
1424 dev_dbg(&pdev->dev, "Forcibly "
1425 "enabling monitoring (VLM)\n");
1426 pc87360_write_value(data, LD_IN, NO_BANK,
1427 PC87365_REG_IN_CONFIG,
1428 reg & 0xFE);
1429 }
1430 }
1431
1432 if (data->tempnr) {
1433 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1434 PC87365_REG_TEMP_CONFIG);
1435 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1436 if (reg & CHAN_ENA) {
1437 dev_dbg(&pdev->dev, "Forcibly enabling "
1438 "monitoring (TMS)\n");
1439 pc87360_write_value(data, LD_TEMP, NO_BANK,
1440 PC87365_REG_TEMP_CONFIG,
1441 reg & 0xFE);
1442 }
1443
1444 if (init >= 2) {
1445 /* Chip config as documented by National Semi. */
1446 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1447 /* We voluntarily omit the bank here, in case the
1448 sequence itself matters. It shouldn't be a problem,
1449 since nobody else is supposed to access the
1450 device at that point. */
1451 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1452 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1453 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1454 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1455 }
1456 }
1457}
1458
1459static void pc87360_autodiv(struct device *dev, int nr)
1460{
1461 struct pc87360_data *data = dev_get_drvdata(dev);
1462 u8 old_min = data->fan_min[nr];
1463
1464 /* Increase clock divider if needed and possible */
1465 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1466 || (data->fan[nr] >= 224)) { /* next to overflow */
1467 if ((data->fan_status[nr] & 0x60) != 0x60) {
1468 data->fan_status[nr] += 0x20;
1469 data->fan_min[nr] >>= 1;
1470 data->fan[nr] >>= 1;
1471 dev_dbg(dev, "Increasing "
1472 "clock divider to %d for fan %d\n",
1473 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1474 }
1475 } else {
1476 /* Decrease clock divider if possible */
1477 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1478 && data->fan[nr] < 85 /* bad accuracy */
1479 && (data->fan_status[nr] & 0x60) != 0x00) {
1480 data->fan_status[nr] -= 0x20;
1481 data->fan_min[nr] <<= 1;
1482 data->fan[nr] <<= 1;
1483 dev_dbg(dev, "Decreasing "
1484 "clock divider to %d for fan %d\n",
1485 FAN_DIV_FROM_REG(data->fan_status[nr]),
1486 nr+1);
1487 }
1488 }
1489
1490 /* Write new fan min if it changed */
1491 if (old_min != data->fan_min[nr]) {
1492 pc87360_write_value(data, LD_FAN, NO_BANK,
1493 PC87360_REG_FAN_MIN(nr),
1494 data->fan_min[nr]);
1495 }
1496}
1497
1498static struct pc87360_data *pc87360_update_device(struct device *dev)
1499{
1500 struct pc87360_data *data = dev_get_drvdata(dev);
1501 u8 i;
1502
1503 mutex_lock(&data->update_lock);
1504
1505 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1506 dev_dbg(dev, "Data update\n");
1507
1508 /* Fans */
1509 for (i = 0; i < data->fannr; i++) {
1510 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1511 data->fan_status[i] =
1512 pc87360_read_value(data, LD_FAN,
1513 NO_BANK, PC87360_REG_FAN_STATUS(i));
1514 data->fan[i] = pc87360_read_value(data, LD_FAN,
1515 NO_BANK, PC87360_REG_FAN(i));
1516 data->fan_min[i] = pc87360_read_value(data,
1517 LD_FAN, NO_BANK,
1518 PC87360_REG_FAN_MIN(i));
1519 /* Change clock divider if needed */
1520 pc87360_autodiv(dev, i);
1521 /* Clear bits and write new divider */
1522 pc87360_write_value(data, LD_FAN, NO_BANK,
1523 PC87360_REG_FAN_STATUS(i),
1524 data->fan_status[i]);
1525 }
1526 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1527 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1528 NO_BANK, PC87360_REG_PWM(i));
1529 }
1530
1531 /* Voltages */
1532 for (i = 0; i < data->innr; i++) {
1533 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1534 PC87365_REG_IN_STATUS);
1535 /* Clear bits */
1536 pc87360_write_value(data, LD_IN, i,
1537 PC87365_REG_IN_STATUS,
1538 data->in_status[i]);
1539 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1540 data->in[i] = pc87360_read_value(data, LD_IN,
1541 i, PC87365_REG_IN);
1542 }
1543 if (data->in_status[i] & CHAN_ENA) {
1544 data->in_min[i] = pc87360_read_value(data,
1545 LD_IN, i,
1546 PC87365_REG_IN_MIN);
1547 data->in_max[i] = pc87360_read_value(data,
1548 LD_IN, i,
1549 PC87365_REG_IN_MAX);
1550 if (i >= 11)
1551 data->in_crit[i-11] =
1552 pc87360_read_value(data, LD_IN,
1553 i, PC87365_REG_TEMP_CRIT);
1554 }
1555 }
1556 if (data->innr) {
1557 data->in_alarms = pc87360_read_value(data, LD_IN,
1558 NO_BANK, PC87365_REG_IN_ALARMS1)
1559 | ((pc87360_read_value(data, LD_IN,
1560 NO_BANK, PC87365_REG_IN_ALARMS2)
1561 & 0x07) << 8);
1562 data->vid = (data->vid_conf & 0xE0) ?
1563 pc87360_read_value(data, LD_IN,
1564 NO_BANK, PC87365_REG_VID) : 0x1F;
1565 }
1566
1567 /* Temperatures */
1568 for (i = 0; i < data->tempnr; i++) {
1569 data->temp_status[i] = pc87360_read_value(data,
1570 LD_TEMP, i,
1571 PC87365_REG_TEMP_STATUS);
1572 /* Clear bits */
1573 pc87360_write_value(data, LD_TEMP, i,
1574 PC87365_REG_TEMP_STATUS,
1575 data->temp_status[i]);
1576 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1577 data->temp[i] = pc87360_read_value(data,
1578 LD_TEMP, i,
1579 PC87365_REG_TEMP);
1580 }
1581 if (data->temp_status[i] & CHAN_ENA) {
1582 data->temp_min[i] = pc87360_read_value(data,
1583 LD_TEMP, i,
1584 PC87365_REG_TEMP_MIN);
1585 data->temp_max[i] = pc87360_read_value(data,
1586 LD_TEMP, i,
1587 PC87365_REG_TEMP_MAX);
1588 data->temp_crit[i] = pc87360_read_value(data,
1589 LD_TEMP, i,
1590 PC87365_REG_TEMP_CRIT);
1591 }
1592 }
1593 if (data->tempnr) {
1594 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1595 NO_BANK, PC87365_REG_TEMP_ALARMS)
1596 & 0x3F;
1597 }
1598
1599 data->last_updated = jiffies;
1600 data->valid = 1;
1601 }
1602
1603 mutex_unlock(&data->update_lock);
1604
1605 return data;
1606}
1607
1608static int __init pc87360_device_add(unsigned short address)
1609{
1610 struct resource res[3];
1611 int err, i, res_count;
1612
1613 pdev = platform_device_alloc("pc87360", address);
1614 if (!pdev) {
1615 err = -ENOMEM;
1616 pr_err("Device allocation failed\n");
1617 goto exit;
1618 }
1619
1620 memset(res, 0, 3 * sizeof(struct resource));
1621 res_count = 0;
1622 for (i = 0; i < 3; i++) {
1623 if (!extra_isa[i])
1624 continue;
1625 res[res_count].start = extra_isa[i];
1626 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1627 res[res_count].name = "pc87360",
1628 res[res_count].flags = IORESOURCE_IO,
1629
1630 err = acpi_check_resource_conflict(&res[res_count]);
1631 if (err)
1632 goto exit_device_put;
1633
1634 res_count++;
1635 }
1636
1637 err = platform_device_add_resources(pdev, res, res_count);
1638 if (err) {
1639 pr_err("Device resources addition failed (%d)\n", err);
1640 goto exit_device_put;
1641 }
1642
1643 err = platform_device_add(pdev);
1644 if (err) {
1645 pr_err("Device addition failed (%d)\n", err);
1646 goto exit_device_put;
1647 }
1648
1649 return 0;
1650
1651exit_device_put:
1652 platform_device_put(pdev);
1653exit:
1654 return err;
1655}
1656
1657static int __init pc87360_init(void)
1658{
1659 int err, i;
1660 unsigned short address = 0;
1661
1662 if (pc87360_find(0x2e, &devid, extra_isa)
1663 && pc87360_find(0x4e, &devid, extra_isa)) {
1664 pr_warn("PC8736x not detected, module not inserted\n");
1665 return -ENODEV;
1666 }
1667
1668 /* Arbitrarily pick one of the addresses */
1669 for (i = 0; i < 3; i++) {
1670 if (extra_isa[i] != 0x0000) {
1671 address = extra_isa[i];
1672 break;
1673 }
1674 }
1675
1676 if (address == 0x0000) {
1677 pr_warn("No active logical device, module not inserted\n");
1678 return -ENODEV;
1679 }
1680
1681 err = platform_driver_register(&pc87360_driver);
1682 if (err)
1683 goto exit;
1684
1685 /* Sets global pdev as a side effect */
1686 err = pc87360_device_add(address);
1687 if (err)
1688 goto exit_driver;
1689
1690 return 0;
1691
1692 exit_driver:
1693 platform_driver_unregister(&pc87360_driver);
1694 exit:
1695 return err;
1696}
1697
1698static void __exit pc87360_exit(void)
1699{
1700 platform_device_unregister(pdev);
1701 platform_driver_unregister(&pc87360_driver);
1702}
1703
1704
1705MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1706MODULE_DESCRIPTION("PC8736x hardware monitor");
1707MODULE_LICENSE("GPL");
1708
1709module_init(pc87360_init);
1710module_exit(pc87360_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * pc87360.c - Part of lm_sensors, Linux kernel modules
4 * for hardware monitoring
5 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
6 *
7 * Copied from smsc47m1.c:
8 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
9 *
10 * Supports the following chips:
11 *
12 * Chip #vin #fan #pwm #temp devid
13 * PC87360 - 2 2 - 0xE1
14 * PC87363 - 2 2 - 0xE8
15 * PC87364 - 3 3 - 0xE4
16 * PC87365 11 3 3 2 0xE5
17 * PC87366 11 3 3 3-4 0xE9
18 *
19 * This driver assumes that no more than one chip is present, and one of
20 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
21 */
22
23#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
24
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/slab.h>
28#include <linux/jiffies.h>
29#include <linux/platform_device.h>
30#include <linux/hwmon.h>
31#include <linux/hwmon-sysfs.h>
32#include <linux/hwmon-vid.h>
33#include <linux/err.h>
34#include <linux/mutex.h>
35#include <linux/acpi.h>
36#include <linux/io.h>
37
38#define DRIVER_NAME "pc87360"
39
40/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
41#define CHAN_CNVRTD 0x80 /* new data ready */
42#define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
43#define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
44#define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
45
46#define TEMP_OTS_OE 0x20 /* OTS Output Enable */
47#define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
48#define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
49
50static u8 devid;
51static struct platform_device *pdev;
52static unsigned short extra_isa[3];
53static u8 confreg[4];
54
55static int init = 1;
56module_param(init, int, 0);
57MODULE_PARM_DESC(init,
58"Chip initialization level:\n"
59" 0: None\n"
60"*1: Forcibly enable internal voltage and temperature channels, except in9\n"
61" 2: Forcibly enable all voltage and temperature channels, except in9\n"
62" 3: Forcibly enable all voltage and temperature channels, including in9");
63
64static unsigned short force_id;
65module_param(force_id, ushort, 0);
66MODULE_PARM_DESC(force_id, "Override the detected device ID");
67
68/*
69 * Super-I/O registers and operations
70 */
71
72#define DEV 0x07 /* Register: Logical device select */
73#define DEVID 0x20 /* Register: Device ID */
74#define ACT 0x30 /* Register: Device activation */
75#define BASE 0x60 /* Register: Base address */
76
77#define FSCM 0x09 /* Logical device: fans */
78#define VLM 0x0d /* Logical device: voltages */
79#define TMS 0x0e /* Logical device: temperatures */
80#define LDNI_MAX 3
81static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
82
83#define LD_FAN 0
84#define LD_IN 1
85#define LD_TEMP 2
86
87static inline void superio_outb(int sioaddr, int reg, int val)
88{
89 outb(reg, sioaddr);
90 outb(val, sioaddr + 1);
91}
92
93static inline int superio_inb(int sioaddr, int reg)
94{
95 outb(reg, sioaddr);
96 return inb(sioaddr + 1);
97}
98
99static inline void superio_exit(int sioaddr)
100{
101 outb(0x02, sioaddr);
102 outb(0x02, sioaddr + 1);
103}
104
105/*
106 * Logical devices
107 */
108
109#define PC87360_EXTENT 0x10
110#define PC87365_REG_BANK 0x09
111#define NO_BANK 0xff
112
113/*
114 * Fan registers and conversions
115 */
116
117/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
118#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
119#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
120#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
121#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
122#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
123
124#define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \
125 480000 / ((val) * (div)))
126#define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \
127 480000 / ((val) * (div)))
128#define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03))
129#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
130
131#define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1)
132#define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1)
133#define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1)
134
135#define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val))
136static inline u8 PWM_TO_REG(int val, int inv)
137{
138 if (inv)
139 val = 255 - val;
140 if (val < 0)
141 return 0;
142 if (val > 255)
143 return 255;
144 return val;
145}
146
147/*
148 * Voltage registers and conversions
149 */
150
151#define PC87365_REG_IN_CONVRATE 0x07
152#define PC87365_REG_IN_CONFIG 0x08
153#define PC87365_REG_IN 0x0B
154#define PC87365_REG_IN_MIN 0x0D
155#define PC87365_REG_IN_MAX 0x0C
156#define PC87365_REG_IN_STATUS 0x0A
157#define PC87365_REG_IN_ALARMS1 0x00
158#define PC87365_REG_IN_ALARMS2 0x01
159#define PC87365_REG_VID 0x06
160
161#define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256)
162#define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \
163 (val) * 256 >= (ref) * 255 ? 255 : \
164 ((val) * 256 + (ref) / 2) / (ref))
165
166/*
167 * Temperature registers and conversions
168 */
169
170#define PC87365_REG_TEMP_CONFIG 0x08
171#define PC87365_REG_TEMP 0x0B
172#define PC87365_REG_TEMP_MIN 0x0D
173#define PC87365_REG_TEMP_MAX 0x0C
174#define PC87365_REG_TEMP_CRIT 0x0E
175#define PC87365_REG_TEMP_STATUS 0x0A
176#define PC87365_REG_TEMP_ALARMS 0x00
177
178#define TEMP_FROM_REG(val) ((val) * 1000)
179#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
180 (val) > 127000 ? 127 : \
181 (val) < 0 ? ((val) - 500) / 1000 : \
182 ((val) + 500) / 1000)
183
184/*
185 * Device data
186 */
187
188struct pc87360_data {
189 const char *name;
190 struct device *hwmon_dev;
191 struct mutex lock;
192 struct mutex update_lock;
193 bool valid; /* true if following fields are valid */
194 unsigned long last_updated; /* In jiffies */
195
196 int address[3];
197
198 u8 fannr, innr, tempnr;
199
200 u8 fan[3]; /* Register value */
201 u8 fan_min[3]; /* Register value */
202 u8 fan_status[3]; /* Register value */
203 u8 pwm[3]; /* Register value */
204 u16 fan_conf; /* Configuration register values, combined */
205
206 u16 in_vref; /* 1 mV/bit */
207 u8 in[14]; /* Register value */
208 u8 in_min[14]; /* Register value */
209 u8 in_max[14]; /* Register value */
210 u8 in_crit[3]; /* Register value */
211 u8 in_status[14]; /* Register value */
212 u16 in_alarms; /* Register values, combined, masked */
213 u8 vid_conf; /* Configuration register value */
214 u8 vrm;
215 u8 vid; /* Register value */
216
217 s8 temp[3]; /* Register value */
218 s8 temp_min[3]; /* Register value */
219 s8 temp_max[3]; /* Register value */
220 s8 temp_crit[3]; /* Register value */
221 u8 temp_status[3]; /* Register value */
222 u8 temp_alarms; /* Register value, masked */
223};
224
225/*
226 * ldi is the logical device index
227 * bank is for voltages and temperatures only
228 */
229static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
230 u8 reg)
231{
232 int res;
233
234 mutex_lock(&(data->lock));
235 if (bank != NO_BANK)
236 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
237 res = inb_p(data->address[ldi] + reg);
238 mutex_unlock(&(data->lock));
239
240 return res;
241}
242
243static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
244 u8 reg, u8 value)
245{
246 mutex_lock(&(data->lock));
247 if (bank != NO_BANK)
248 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
249 outb_p(value, data->address[ldi] + reg);
250 mutex_unlock(&(data->lock));
251}
252
253static void pc87360_autodiv(struct device *dev, int nr)
254{
255 struct pc87360_data *data = dev_get_drvdata(dev);
256 u8 old_min = data->fan_min[nr];
257
258 /* Increase clock divider if needed and possible */
259 if ((data->fan_status[nr] & 0x04) /* overflow flag */
260 || (data->fan[nr] >= 224)) { /* next to overflow */
261 if ((data->fan_status[nr] & 0x60) != 0x60) {
262 data->fan_status[nr] += 0x20;
263 data->fan_min[nr] >>= 1;
264 data->fan[nr] >>= 1;
265 dev_dbg(dev,
266 "Increasing clock divider to %d for fan %d\n",
267 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
268 }
269 } else {
270 /* Decrease clock divider if possible */
271 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
272 && data->fan[nr] < 85 /* bad accuracy */
273 && (data->fan_status[nr] & 0x60) != 0x00) {
274 data->fan_status[nr] -= 0x20;
275 data->fan_min[nr] <<= 1;
276 data->fan[nr] <<= 1;
277 dev_dbg(dev,
278 "Decreasing clock divider to %d for fan %d\n",
279 FAN_DIV_FROM_REG(data->fan_status[nr]),
280 nr + 1);
281 }
282 }
283
284 /* Write new fan min if it changed */
285 if (old_min != data->fan_min[nr]) {
286 pc87360_write_value(data, LD_FAN, NO_BANK,
287 PC87360_REG_FAN_MIN(nr),
288 data->fan_min[nr]);
289 }
290}
291
292static struct pc87360_data *pc87360_update_device(struct device *dev)
293{
294 struct pc87360_data *data = dev_get_drvdata(dev);
295 u8 i;
296
297 mutex_lock(&data->update_lock);
298
299 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
300 dev_dbg(dev, "Data update\n");
301
302 /* Fans */
303 for (i = 0; i < data->fannr; i++) {
304 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
305 data->fan_status[i] =
306 pc87360_read_value(data, LD_FAN,
307 NO_BANK, PC87360_REG_FAN_STATUS(i));
308 data->fan[i] = pc87360_read_value(data, LD_FAN,
309 NO_BANK, PC87360_REG_FAN(i));
310 data->fan_min[i] = pc87360_read_value(data,
311 LD_FAN, NO_BANK,
312 PC87360_REG_FAN_MIN(i));
313 /* Change clock divider if needed */
314 pc87360_autodiv(dev, i);
315 /* Clear bits and write new divider */
316 pc87360_write_value(data, LD_FAN, NO_BANK,
317 PC87360_REG_FAN_STATUS(i),
318 data->fan_status[i]);
319 }
320 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
321 data->pwm[i] = pc87360_read_value(data, LD_FAN,
322 NO_BANK, PC87360_REG_PWM(i));
323 }
324
325 /* Voltages */
326 /*
327 * The min() below does not have any practical meaning and is
328 * only needed to silence a warning observed with gcc 12+.
329 */
330 for (i = 0; i < min(data->innr, ARRAY_SIZE(data->in)); i++) {
331 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
332 PC87365_REG_IN_STATUS);
333 /* Clear bits */
334 pc87360_write_value(data, LD_IN, i,
335 PC87365_REG_IN_STATUS,
336 data->in_status[i]);
337 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
338 data->in[i] = pc87360_read_value(data, LD_IN,
339 i, PC87365_REG_IN);
340 }
341 if (data->in_status[i] & CHAN_ENA) {
342 data->in_min[i] = pc87360_read_value(data,
343 LD_IN, i,
344 PC87365_REG_IN_MIN);
345 data->in_max[i] = pc87360_read_value(data,
346 LD_IN, i,
347 PC87365_REG_IN_MAX);
348 if (i >= 11)
349 data->in_crit[i-11] =
350 pc87360_read_value(data, LD_IN,
351 i, PC87365_REG_TEMP_CRIT);
352 }
353 }
354 if (data->innr) {
355 data->in_alarms = pc87360_read_value(data, LD_IN,
356 NO_BANK, PC87365_REG_IN_ALARMS1)
357 | ((pc87360_read_value(data, LD_IN,
358 NO_BANK, PC87365_REG_IN_ALARMS2)
359 & 0x07) << 8);
360 data->vid = (data->vid_conf & 0xE0) ?
361 pc87360_read_value(data, LD_IN,
362 NO_BANK, PC87365_REG_VID) : 0x1F;
363 }
364
365 /* Temperatures */
366 for (i = 0; i < data->tempnr; i++) {
367 data->temp_status[i] = pc87360_read_value(data,
368 LD_TEMP, i,
369 PC87365_REG_TEMP_STATUS);
370 /* Clear bits */
371 pc87360_write_value(data, LD_TEMP, i,
372 PC87365_REG_TEMP_STATUS,
373 data->temp_status[i]);
374 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
375 data->temp[i] = pc87360_read_value(data,
376 LD_TEMP, i,
377 PC87365_REG_TEMP);
378 }
379 if (data->temp_status[i] & CHAN_ENA) {
380 data->temp_min[i] = pc87360_read_value(data,
381 LD_TEMP, i,
382 PC87365_REG_TEMP_MIN);
383 data->temp_max[i] = pc87360_read_value(data,
384 LD_TEMP, i,
385 PC87365_REG_TEMP_MAX);
386 data->temp_crit[i] = pc87360_read_value(data,
387 LD_TEMP, i,
388 PC87365_REG_TEMP_CRIT);
389 }
390 }
391 if (data->tempnr) {
392 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
393 NO_BANK, PC87365_REG_TEMP_ALARMS)
394 & 0x3F;
395 }
396
397 data->last_updated = jiffies;
398 data->valid = true;
399 }
400
401 mutex_unlock(&data->update_lock);
402
403 return data;
404}
405
406static ssize_t in_input_show(struct device *dev,
407 struct device_attribute *devattr, char *buf)
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}
414
415static struct sensor_device_attribute in_input[] = {
416 SENSOR_ATTR_RO(in0_input, in_input, 0),
417 SENSOR_ATTR_RO(in1_input, in_input, 1),
418 SENSOR_ATTR_RO(in2_input, in_input, 2),
419 SENSOR_ATTR_RO(in3_input, in_input, 3),
420 SENSOR_ATTR_RO(in4_input, in_input, 4),
421 SENSOR_ATTR_RO(in5_input, in_input, 5),
422 SENSOR_ATTR_RO(in6_input, in_input, 6),
423 SENSOR_ATTR_RO(in7_input, in_input, 7),
424 SENSOR_ATTR_RO(in8_input, in_input, 8),
425 SENSOR_ATTR_RO(in9_input, in_input, 9),
426 SENSOR_ATTR_RO(in10_input, in_input, 10),
427};
428
429static ssize_t in_status_show(struct device *dev,
430 struct device_attribute *devattr, char *buf)
431{
432 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
433 struct pc87360_data *data = pc87360_update_device(dev);
434 return sprintf(buf, "%u\n", data->in_status[attr->index]);
435}
436
437static struct sensor_device_attribute in_status[] = {
438 SENSOR_ATTR_RO(in0_status, in_status, 0),
439 SENSOR_ATTR_RO(in1_status, in_status, 1),
440 SENSOR_ATTR_RO(in2_status, in_status, 2),
441 SENSOR_ATTR_RO(in3_status, in_status, 3),
442 SENSOR_ATTR_RO(in4_status, in_status, 4),
443 SENSOR_ATTR_RO(in5_status, in_status, 5),
444 SENSOR_ATTR_RO(in6_status, in_status, 6),
445 SENSOR_ATTR_RO(in7_status, in_status, 7),
446 SENSOR_ATTR_RO(in8_status, in_status, 8),
447 SENSOR_ATTR_RO(in9_status, in_status, 9),
448 SENSOR_ATTR_RO(in10_status, in_status, 10),
449};
450
451static ssize_t in_min_show(struct device *dev,
452 struct device_attribute *devattr, char *buf)
453{
454 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
455 struct pc87360_data *data = pc87360_update_device(dev);
456 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
457 data->in_vref));
458}
459
460static ssize_t in_min_store(struct device *dev,
461 struct device_attribute *devattr, const char *buf,
462 size_t count)
463{
464 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
465 struct pc87360_data *data = dev_get_drvdata(dev);
466 long val;
467 int err;
468
469 err = kstrtol(buf, 10, &val);
470 if (err)
471 return err;
472
473 mutex_lock(&data->update_lock);
474 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
475 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
476 data->in_min[attr->index]);
477 mutex_unlock(&data->update_lock);
478 return count;
479}
480
481static struct sensor_device_attribute in_min[] = {
482 SENSOR_ATTR_RW(in0_min, in_min, 0),
483 SENSOR_ATTR_RW(in1_min, in_min, 1),
484 SENSOR_ATTR_RW(in2_min, in_min, 2),
485 SENSOR_ATTR_RW(in3_min, in_min, 3),
486 SENSOR_ATTR_RW(in4_min, in_min, 4),
487 SENSOR_ATTR_RW(in5_min, in_min, 5),
488 SENSOR_ATTR_RW(in6_min, in_min, 6),
489 SENSOR_ATTR_RW(in7_min, in_min, 7),
490 SENSOR_ATTR_RW(in8_min, in_min, 8),
491 SENSOR_ATTR_RW(in9_min, in_min, 9),
492 SENSOR_ATTR_RW(in10_min, in_min, 10),
493};
494
495static ssize_t in_max_show(struct device *dev,
496 struct device_attribute *devattr, char *buf)
497{
498 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
499 struct pc87360_data *data = pc87360_update_device(dev);
500 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
501 data->in_vref));
502}
503
504static ssize_t in_max_store(struct device *dev,
505 struct device_attribute *devattr, const char *buf,
506 size_t count)
507{
508 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
509 struct pc87360_data *data = dev_get_drvdata(dev);
510 long val;
511 int err;
512
513 err = kstrtol(buf, 10, &val);
514 if (err)
515 return err;
516
517 mutex_lock(&data->update_lock);
518 data->in_max[attr->index] = IN_TO_REG(val,
519 data->in_vref);
520 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
521 data->in_max[attr->index]);
522 mutex_unlock(&data->update_lock);
523 return count;
524}
525
526static struct sensor_device_attribute in_max[] = {
527 SENSOR_ATTR_RW(in0_max, in_max, 0),
528 SENSOR_ATTR_RW(in1_max, in_max, 1),
529 SENSOR_ATTR_RW(in2_max, in_max, 2),
530 SENSOR_ATTR_RW(in3_max, in_max, 3),
531 SENSOR_ATTR_RW(in4_max, in_max, 4),
532 SENSOR_ATTR_RW(in5_max, in_max, 5),
533 SENSOR_ATTR_RW(in6_max, in_max, 6),
534 SENSOR_ATTR_RW(in7_max, in_max, 7),
535 SENSOR_ATTR_RW(in8_max, in_max, 8),
536 SENSOR_ATTR_RW(in9_max, in_max, 9),
537 SENSOR_ATTR_RW(in10_max, in_max, 10),
538};
539
540/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
541#define CHAN_ALM_MIN 0x02 /* min limit crossed */
542#define CHAN_ALM_MAX 0x04 /* max limit exceeded */
543#define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
544
545/*
546 * show_in_min/max_alarm() reads data from the per-channel status
547 * register (sec 11.5.12), not the vin event status registers (sec
548 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
549 */
550
551static ssize_t in_min_alarm_show(struct device *dev,
552 struct device_attribute *devattr, char *buf)
553{
554 struct pc87360_data *data = pc87360_update_device(dev);
555 unsigned nr = to_sensor_dev_attr(devattr)->index;
556
557 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
558}
559
560static struct sensor_device_attribute in_min_alarm[] = {
561 SENSOR_ATTR_RO(in0_min_alarm, in_min_alarm, 0),
562 SENSOR_ATTR_RO(in1_min_alarm, in_min_alarm, 1),
563 SENSOR_ATTR_RO(in2_min_alarm, in_min_alarm, 2),
564 SENSOR_ATTR_RO(in3_min_alarm, in_min_alarm, 3),
565 SENSOR_ATTR_RO(in4_min_alarm, in_min_alarm, 4),
566 SENSOR_ATTR_RO(in5_min_alarm, in_min_alarm, 5),
567 SENSOR_ATTR_RO(in6_min_alarm, in_min_alarm, 6),
568 SENSOR_ATTR_RO(in7_min_alarm, in_min_alarm, 7),
569 SENSOR_ATTR_RO(in8_min_alarm, in_min_alarm, 8),
570 SENSOR_ATTR_RO(in9_min_alarm, in_min_alarm, 9),
571 SENSOR_ATTR_RO(in10_min_alarm, in_min_alarm, 10),
572};
573
574static ssize_t in_max_alarm_show(struct device *dev,
575 struct device_attribute *devattr, char *buf)
576{
577 struct pc87360_data *data = pc87360_update_device(dev);
578 unsigned nr = to_sensor_dev_attr(devattr)->index;
579
580 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
581}
582
583static struct sensor_device_attribute in_max_alarm[] = {
584 SENSOR_ATTR_RO(in0_max_alarm, in_max_alarm, 0),
585 SENSOR_ATTR_RO(in1_max_alarm, in_max_alarm, 1),
586 SENSOR_ATTR_RO(in2_max_alarm, in_max_alarm, 2),
587 SENSOR_ATTR_RO(in3_max_alarm, in_max_alarm, 3),
588 SENSOR_ATTR_RO(in4_max_alarm, in_max_alarm, 4),
589 SENSOR_ATTR_RO(in5_max_alarm, in_max_alarm, 5),
590 SENSOR_ATTR_RO(in6_max_alarm, in_max_alarm, 6),
591 SENSOR_ATTR_RO(in7_max_alarm, in_max_alarm, 7),
592 SENSOR_ATTR_RO(in8_max_alarm, in_max_alarm, 8),
593 SENSOR_ATTR_RO(in9_max_alarm, in_max_alarm, 9),
594 SENSOR_ATTR_RO(in10_max_alarm, in_max_alarm, 10),
595};
596
597#define VIN_UNIT_ATTRS(X) \
598 &in_input[X].dev_attr.attr, \
599 &in_status[X].dev_attr.attr, \
600 &in_min[X].dev_attr.attr, \
601 &in_max[X].dev_attr.attr, \
602 &in_min_alarm[X].dev_attr.attr, \
603 &in_max_alarm[X].dev_attr.attr
604
605static ssize_t cpu0_vid_show(struct device *dev,
606 struct device_attribute *attr, char *buf)
607{
608 struct pc87360_data *data = pc87360_update_device(dev);
609 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
610}
611static DEVICE_ATTR_RO(cpu0_vid);
612
613static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
614 char *buf)
615{
616 struct pc87360_data *data = dev_get_drvdata(dev);
617 return sprintf(buf, "%u\n", data->vrm);
618}
619
620static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
621 const char *buf, size_t count)
622{
623 struct pc87360_data *data = dev_get_drvdata(dev);
624 unsigned long val;
625 int err;
626
627 err = kstrtoul(buf, 10, &val);
628 if (err)
629 return err;
630
631 if (val > 255)
632 return -EINVAL;
633
634 data->vrm = val;
635 return count;
636}
637static DEVICE_ATTR_RW(vrm);
638
639static ssize_t alarms_in_show(struct device *dev,
640 struct device_attribute *attr, char *buf)
641{
642 struct pc87360_data *data = pc87360_update_device(dev);
643 return sprintf(buf, "%u\n", data->in_alarms);
644}
645static DEVICE_ATTR_RO(alarms_in);
646
647static struct attribute *pc8736x_vin_attr_array[] = {
648 VIN_UNIT_ATTRS(0),
649 VIN_UNIT_ATTRS(1),
650 VIN_UNIT_ATTRS(2),
651 VIN_UNIT_ATTRS(3),
652 VIN_UNIT_ATTRS(4),
653 VIN_UNIT_ATTRS(5),
654 VIN_UNIT_ATTRS(6),
655 VIN_UNIT_ATTRS(7),
656 VIN_UNIT_ATTRS(8),
657 VIN_UNIT_ATTRS(9),
658 VIN_UNIT_ATTRS(10),
659 &dev_attr_cpu0_vid.attr,
660 &dev_attr_vrm.attr,
661 &dev_attr_alarms_in.attr,
662 NULL
663};
664static const struct attribute_group pc8736x_vin_group = {
665 .attrs = pc8736x_vin_attr_array,
666};
667
668static ssize_t therm_input_show(struct device *dev,
669 struct device_attribute *devattr, char *buf)
670{
671 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
672 struct pc87360_data *data = pc87360_update_device(dev);
673 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
674 data->in_vref));
675}
676
677/*
678 * the +11 term below reflects the fact that VLM units 11,12,13 are
679 * used in the chip to measure voltage across the thermistors
680 */
681static struct sensor_device_attribute therm_input[] = {
682 SENSOR_ATTR_RO(temp4_input, therm_input, 0 + 11),
683 SENSOR_ATTR_RO(temp5_input, therm_input, 1 + 11),
684 SENSOR_ATTR_RO(temp6_input, therm_input, 2 + 11),
685};
686
687static ssize_t therm_status_show(struct device *dev,
688 struct device_attribute *devattr, char *buf)
689{
690 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
691 struct pc87360_data *data = pc87360_update_device(dev);
692 return sprintf(buf, "%u\n", data->in_status[attr->index]);
693}
694
695static struct sensor_device_attribute therm_status[] = {
696 SENSOR_ATTR_RO(temp4_status, therm_status, 0 + 11),
697 SENSOR_ATTR_RO(temp5_status, therm_status, 1 + 11),
698 SENSOR_ATTR_RO(temp6_status, therm_status, 2 + 11),
699};
700
701static ssize_t therm_min_show(struct device *dev,
702 struct device_attribute *devattr, char *buf)
703{
704 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
705 struct pc87360_data *data = pc87360_update_device(dev);
706 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
707 data->in_vref));
708}
709
710static ssize_t therm_min_store(struct device *dev,
711 struct device_attribute *devattr,
712 const char *buf, size_t count)
713{
714 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
715 struct pc87360_data *data = dev_get_drvdata(dev);
716 long val;
717 int err;
718
719 err = kstrtol(buf, 10, &val);
720 if (err)
721 return err;
722
723 mutex_lock(&data->update_lock);
724 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
725 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
726 data->in_min[attr->index]);
727 mutex_unlock(&data->update_lock);
728 return count;
729}
730
731static struct sensor_device_attribute therm_min[] = {
732 SENSOR_ATTR_RW(temp4_min, therm_min, 0 + 11),
733 SENSOR_ATTR_RW(temp5_min, therm_min, 1 + 11),
734 SENSOR_ATTR_RW(temp6_min, therm_min, 2 + 11),
735};
736
737static ssize_t therm_max_show(struct device *dev,
738 struct device_attribute *devattr, char *buf)
739{
740 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
741 struct pc87360_data *data = pc87360_update_device(dev);
742 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
743 data->in_vref));
744}
745
746static ssize_t therm_max_store(struct device *dev,
747 struct device_attribute *devattr,
748 const char *buf, size_t count)
749{
750 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
751 struct pc87360_data *data = dev_get_drvdata(dev);
752 long val;
753 int err;
754
755 err = kstrtol(buf, 10, &val);
756 if (err)
757 return err;
758
759 mutex_lock(&data->update_lock);
760 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
761 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
762 data->in_max[attr->index]);
763 mutex_unlock(&data->update_lock);
764 return count;
765}
766
767static struct sensor_device_attribute therm_max[] = {
768 SENSOR_ATTR_RW(temp4_max, therm_max, 0 + 11),
769 SENSOR_ATTR_RW(temp5_max, therm_max, 1 + 11),
770 SENSOR_ATTR_RW(temp6_max, therm_max, 2 + 11),
771};
772
773static ssize_t therm_crit_show(struct device *dev,
774 struct device_attribute *devattr, char *buf)
775{
776 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
777 struct pc87360_data *data = pc87360_update_device(dev);
778 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
779 data->in_vref));
780}
781
782static ssize_t therm_crit_store(struct device *dev,
783 struct device_attribute *devattr,
784 const char *buf, size_t count)
785{
786 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
787 struct pc87360_data *data = dev_get_drvdata(dev);
788 long val;
789 int err;
790
791 err = kstrtol(buf, 10, &val);
792 if (err)
793 return err;
794
795 mutex_lock(&data->update_lock);
796 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
797 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
798 data->in_crit[attr->index-11]);
799 mutex_unlock(&data->update_lock);
800 return count;
801}
802
803static struct sensor_device_attribute therm_crit[] = {
804 SENSOR_ATTR_RW(temp4_crit, therm_crit, 0 + 11),
805 SENSOR_ATTR_RW(temp5_crit, therm_crit, 1 + 11),
806 SENSOR_ATTR_RW(temp6_crit, therm_crit, 2 + 11),
807};
808
809/*
810 * show_therm_min/max_alarm() reads data from the per-channel voltage
811 * status register (sec 11.5.12)
812 */
813static ssize_t therm_min_alarm_show(struct device *dev,
814 struct device_attribute *devattr,
815 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] & CHAN_ALM_MIN));
821}
822
823static struct sensor_device_attribute therm_min_alarm[] = {
824 SENSOR_ATTR_RO(temp4_min_alarm, therm_min_alarm, 0 + 11),
825 SENSOR_ATTR_RO(temp5_min_alarm, therm_min_alarm, 1 + 11),
826 SENSOR_ATTR_RO(temp6_min_alarm, therm_min_alarm, 2 + 11),
827};
828
829static ssize_t therm_max_alarm_show(struct device *dev,
830 struct device_attribute *devattr,
831 char *buf)
832{
833 struct pc87360_data *data = pc87360_update_device(dev);
834 unsigned nr = to_sensor_dev_attr(devattr)->index;
835
836 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
837}
838
839static struct sensor_device_attribute therm_max_alarm[] = {
840 SENSOR_ATTR_RO(temp4_max_alarm, therm_max_alarm, 0 + 11),
841 SENSOR_ATTR_RO(temp5_max_alarm, therm_max_alarm, 1 + 11),
842 SENSOR_ATTR_RO(temp6_max_alarm, therm_max_alarm, 2 + 11),
843};
844
845static ssize_t therm_crit_alarm_show(struct device *dev,
846 struct device_attribute *devattr,
847 char *buf)
848{
849 struct pc87360_data *data = pc87360_update_device(dev);
850 unsigned nr = to_sensor_dev_attr(devattr)->index;
851
852 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
853}
854
855static struct sensor_device_attribute therm_crit_alarm[] = {
856 SENSOR_ATTR_RO(temp4_crit_alarm, therm_crit_alarm, 0 + 11),
857 SENSOR_ATTR_RO(temp5_crit_alarm, therm_crit_alarm, 1 + 11),
858 SENSOR_ATTR_RO(temp6_crit_alarm, therm_crit_alarm, 2 + 11),
859};
860
861#define THERM_UNIT_ATTRS(X) \
862 &therm_input[X].dev_attr.attr, \
863 &therm_status[X].dev_attr.attr, \
864 &therm_min[X].dev_attr.attr, \
865 &therm_max[X].dev_attr.attr, \
866 &therm_crit[X].dev_attr.attr, \
867 &therm_min_alarm[X].dev_attr.attr, \
868 &therm_max_alarm[X].dev_attr.attr, \
869 &therm_crit_alarm[X].dev_attr.attr
870
871static struct attribute *pc8736x_therm_attr_array[] = {
872 THERM_UNIT_ATTRS(0),
873 THERM_UNIT_ATTRS(1),
874 THERM_UNIT_ATTRS(2),
875 NULL
876};
877static const struct attribute_group pc8736x_therm_group = {
878 .attrs = pc8736x_therm_attr_array,
879};
880
881static ssize_t temp_input_show(struct device *dev,
882 struct device_attribute *devattr, char *buf)
883{
884 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
885 struct pc87360_data *data = pc87360_update_device(dev);
886 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
887}
888
889static struct sensor_device_attribute temp_input[] = {
890 SENSOR_ATTR_RO(temp1_input, temp_input, 0),
891 SENSOR_ATTR_RO(temp2_input, temp_input, 1),
892 SENSOR_ATTR_RO(temp3_input, temp_input, 2),
893};
894
895static ssize_t temp_status_show(struct device *dev,
896 struct device_attribute *devattr, char *buf)
897{
898 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
899 struct pc87360_data *data = pc87360_update_device(dev);
900 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
901}
902
903static struct sensor_device_attribute temp_status[] = {
904 SENSOR_ATTR_RO(temp1_status, temp_status, 0),
905 SENSOR_ATTR_RO(temp2_status, temp_status, 1),
906 SENSOR_ATTR_RO(temp3_status, temp_status, 2),
907};
908
909static ssize_t temp_min_show(struct device *dev,
910 struct device_attribute *devattr, char *buf)
911{
912 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
913 struct pc87360_data *data = pc87360_update_device(dev);
914 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
915}
916
917static ssize_t temp_min_store(struct device *dev,
918 struct device_attribute *devattr,
919 const char *buf, size_t count)
920{
921 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
922 struct pc87360_data *data = dev_get_drvdata(dev);
923 long val;
924 int err;
925
926 err = kstrtol(buf, 10, &val);
927 if (err)
928 return err;
929
930 mutex_lock(&data->update_lock);
931 data->temp_min[attr->index] = TEMP_TO_REG(val);
932 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
933 data->temp_min[attr->index]);
934 mutex_unlock(&data->update_lock);
935 return count;
936}
937
938static struct sensor_device_attribute temp_min[] = {
939 SENSOR_ATTR_RW(temp1_min, temp_min, 0),
940 SENSOR_ATTR_RW(temp2_min, temp_min, 1),
941 SENSOR_ATTR_RW(temp3_min, temp_min, 2),
942};
943
944static ssize_t temp_max_show(struct device *dev,
945 struct device_attribute *devattr, char *buf)
946{
947 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
948 struct pc87360_data *data = pc87360_update_device(dev);
949 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
950}
951
952static ssize_t temp_max_store(struct device *dev,
953 struct device_attribute *devattr,
954 const char *buf, size_t count)
955{
956 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
957 struct pc87360_data *data = dev_get_drvdata(dev);
958 long val;
959 int err;
960
961 err = kstrtol(buf, 10, &val);
962 if (err)
963 return err;
964
965 mutex_lock(&data->update_lock);
966 data->temp_max[attr->index] = TEMP_TO_REG(val);
967 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
968 data->temp_max[attr->index]);
969 mutex_unlock(&data->update_lock);
970 return count;
971}
972
973static struct sensor_device_attribute temp_max[] = {
974 SENSOR_ATTR_RW(temp1_max, temp_max, 0),
975 SENSOR_ATTR_RW(temp2_max, temp_max, 1),
976 SENSOR_ATTR_RW(temp3_max, temp_max, 2),
977};
978
979static ssize_t temp_crit_show(struct device *dev,
980 struct device_attribute *devattr, char *buf)
981{
982 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
983 struct pc87360_data *data = pc87360_update_device(dev);
984 return sprintf(buf, "%d\n",
985 TEMP_FROM_REG(data->temp_crit[attr->index]));
986}
987
988static ssize_t temp_crit_store(struct device *dev,
989 struct device_attribute *devattr,
990 const char *buf, size_t count)
991{
992 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
993 struct pc87360_data *data = dev_get_drvdata(dev);
994 long val;
995 int err;
996
997 err = kstrtol(buf, 10, &val);
998 if (err)
999 return err;
1000
1001 mutex_lock(&data->update_lock);
1002 data->temp_crit[attr->index] = TEMP_TO_REG(val);
1003 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
1004 data->temp_crit[attr->index]);
1005 mutex_unlock(&data->update_lock);
1006 return count;
1007}
1008
1009static struct sensor_device_attribute temp_crit[] = {
1010 SENSOR_ATTR_RW(temp1_crit, temp_crit, 0),
1011 SENSOR_ATTR_RW(temp2_crit, temp_crit, 1),
1012 SENSOR_ATTR_RW(temp3_crit, temp_crit, 2),
1013};
1014
1015/*
1016 * temp_min/max_alarm_show() reads data from the per-channel status
1017 * register (sec 12.3.7), not the temp event status registers (sec
1018 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1019 */
1020static ssize_t temp_min_alarm_show(struct device *dev,
1021 struct device_attribute *devattr,
1022 char *buf)
1023{
1024 struct pc87360_data *data = pc87360_update_device(dev);
1025 unsigned nr = to_sensor_dev_attr(devattr)->index;
1026
1027 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1028}
1029
1030static struct sensor_device_attribute temp_min_alarm[] = {
1031 SENSOR_ATTR_RO(temp1_min_alarm, temp_min_alarm, 0),
1032 SENSOR_ATTR_RO(temp2_min_alarm, temp_min_alarm, 1),
1033 SENSOR_ATTR_RO(temp3_min_alarm, temp_min_alarm, 2),
1034};
1035
1036static ssize_t temp_max_alarm_show(struct device *dev,
1037 struct device_attribute *devattr,
1038 char *buf)
1039{
1040 struct pc87360_data *data = pc87360_update_device(dev);
1041 unsigned nr = to_sensor_dev_attr(devattr)->index;
1042
1043 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1044}
1045
1046static struct sensor_device_attribute temp_max_alarm[] = {
1047 SENSOR_ATTR_RO(temp1_max_alarm, temp_max_alarm, 0),
1048 SENSOR_ATTR_RO(temp2_max_alarm, temp_max_alarm, 1),
1049 SENSOR_ATTR_RO(temp3_max_alarm, temp_max_alarm, 2),
1050};
1051
1052static ssize_t temp_crit_alarm_show(struct device *dev,
1053 struct device_attribute *devattr,
1054 char *buf)
1055{
1056 struct pc87360_data *data = pc87360_update_device(dev);
1057 unsigned nr = to_sensor_dev_attr(devattr)->index;
1058
1059 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1060}
1061
1062static struct sensor_device_attribute temp_crit_alarm[] = {
1063 SENSOR_ATTR_RO(temp1_crit_alarm, temp_crit_alarm, 0),
1064 SENSOR_ATTR_RO(temp2_crit_alarm, temp_crit_alarm, 1),
1065 SENSOR_ATTR_RO(temp3_crit_alarm, temp_crit_alarm, 2),
1066};
1067
1068#define TEMP_FAULT 0x40 /* open diode */
1069static ssize_t temp_fault_show(struct device *dev,
1070 struct device_attribute *devattr, char *buf)
1071{
1072 struct pc87360_data *data = pc87360_update_device(dev);
1073 unsigned nr = to_sensor_dev_attr(devattr)->index;
1074
1075 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1076}
1077
1078static struct sensor_device_attribute temp_fault[] = {
1079 SENSOR_ATTR_RO(temp1_fault, temp_fault, 0),
1080 SENSOR_ATTR_RO(temp2_fault, temp_fault, 1),
1081 SENSOR_ATTR_RO(temp3_fault, temp_fault, 2),
1082};
1083
1084#define TEMP_UNIT_ATTRS(X) \
1085{ &temp_input[X].dev_attr.attr, \
1086 &temp_status[X].dev_attr.attr, \
1087 &temp_min[X].dev_attr.attr, \
1088 &temp_max[X].dev_attr.attr, \
1089 &temp_crit[X].dev_attr.attr, \
1090 &temp_min_alarm[X].dev_attr.attr, \
1091 &temp_max_alarm[X].dev_attr.attr, \
1092 &temp_crit_alarm[X].dev_attr.attr, \
1093 &temp_fault[X].dev_attr.attr, \
1094 NULL \
1095}
1096
1097static struct attribute *pc8736x_temp_attr[][10] = {
1098 TEMP_UNIT_ATTRS(0),
1099 TEMP_UNIT_ATTRS(1),
1100 TEMP_UNIT_ATTRS(2)
1101};
1102
1103static const struct attribute_group pc8736x_temp_attr_group[] = {
1104 { .attrs = pc8736x_temp_attr[0] },
1105 { .attrs = pc8736x_temp_attr[1] },
1106 { .attrs = pc8736x_temp_attr[2] }
1107};
1108
1109static ssize_t alarms_temp_show(struct device *dev,
1110 struct device_attribute *attr, char *buf)
1111{
1112 struct pc87360_data *data = pc87360_update_device(dev);
1113 return sprintf(buf, "%u\n", data->temp_alarms);
1114}
1115
1116static DEVICE_ATTR_RO(alarms_temp);
1117
1118static ssize_t fan_input_show(struct device *dev,
1119 struct device_attribute *devattr, char *buf)
1120{
1121 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1122 struct pc87360_data *data = pc87360_update_device(dev);
1123 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
1124 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
1125}
1126
1127static struct sensor_device_attribute fan_input[] = {
1128 SENSOR_ATTR_RO(fan1_input, fan_input, 0),
1129 SENSOR_ATTR_RO(fan2_input, fan_input, 1),
1130 SENSOR_ATTR_RO(fan3_input, fan_input, 2),
1131};
1132
1133static ssize_t fan_status_show(struct device *dev,
1134 struct device_attribute *devattr, char *buf)
1135{
1136 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1137 struct pc87360_data *data = pc87360_update_device(dev);
1138 return sprintf(buf, "%u\n",
1139 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
1140}
1141
1142static struct sensor_device_attribute fan_status[] = {
1143 SENSOR_ATTR_RO(fan1_status, fan_status, 0),
1144 SENSOR_ATTR_RO(fan2_status, fan_status, 1),
1145 SENSOR_ATTR_RO(fan3_status, fan_status, 2),
1146};
1147
1148static ssize_t fan_div_show(struct device *dev,
1149 struct device_attribute *devattr, char *buf)
1150{
1151 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1152 struct pc87360_data *data = pc87360_update_device(dev);
1153 return sprintf(buf, "%u\n",
1154 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
1155}
1156
1157static struct sensor_device_attribute fan_div[] = {
1158 SENSOR_ATTR_RO(fan1_div, fan_div, 0),
1159 SENSOR_ATTR_RO(fan2_div, fan_div, 1),
1160 SENSOR_ATTR_RO(fan3_div, fan_div, 2),
1161};
1162
1163static ssize_t fan_min_show(struct device *dev,
1164 struct device_attribute *devattr, char *buf)
1165{
1166 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1167 struct pc87360_data *data = pc87360_update_device(dev);
1168 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
1169 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
1170}
1171
1172static ssize_t fan_min_store(struct device *dev,
1173 struct device_attribute *devattr,
1174 const char *buf, size_t count)
1175{
1176 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1177 struct pc87360_data *data = dev_get_drvdata(dev);
1178 long fan_min;
1179 int err;
1180
1181 err = kstrtol(buf, 10, &fan_min);
1182 if (err)
1183 return err;
1184
1185 mutex_lock(&data->update_lock);
1186 fan_min = FAN_TO_REG(fan_min,
1187 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
1188
1189 /* If it wouldn't fit, change clock divisor */
1190 while (fan_min > 255
1191 && (data->fan_status[attr->index] & 0x60) != 0x60) {
1192 fan_min >>= 1;
1193 data->fan[attr->index] >>= 1;
1194 data->fan_status[attr->index] += 0x20;
1195 }
1196 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
1197 pc87360_write_value(data, LD_FAN, NO_BANK,
1198 PC87360_REG_FAN_MIN(attr->index),
1199 data->fan_min[attr->index]);
1200
1201 /* Write new divider, preserve alarm bits */
1202 pc87360_write_value(data, LD_FAN, NO_BANK,
1203 PC87360_REG_FAN_STATUS(attr->index),
1204 data->fan_status[attr->index] & 0xF9);
1205 mutex_unlock(&data->update_lock);
1206
1207 return count;
1208}
1209
1210static struct sensor_device_attribute fan_min[] = {
1211 SENSOR_ATTR_RW(fan1_min, fan_min, 0),
1212 SENSOR_ATTR_RW(fan2_min, fan_min, 1),
1213 SENSOR_ATTR_RW(fan3_min, fan_min, 2),
1214};
1215
1216#define FAN_UNIT_ATTRS(X) \
1217{ &fan_input[X].dev_attr.attr, \
1218 &fan_status[X].dev_attr.attr, \
1219 &fan_div[X].dev_attr.attr, \
1220 &fan_min[X].dev_attr.attr, \
1221 NULL \
1222}
1223
1224static struct attribute *pc8736x_fan_attr[][5] = {
1225 FAN_UNIT_ATTRS(0),
1226 FAN_UNIT_ATTRS(1),
1227 FAN_UNIT_ATTRS(2)
1228};
1229
1230static const struct attribute_group pc8736x_fan_attr_group[] = {
1231 { .attrs = pc8736x_fan_attr[0], },
1232 { .attrs = pc8736x_fan_attr[1], },
1233 { .attrs = pc8736x_fan_attr[2], },
1234};
1235
1236static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr,
1237 char *buf)
1238{
1239 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1240 struct pc87360_data *data = pc87360_update_device(dev);
1241 return sprintf(buf, "%u\n",
1242 PWM_FROM_REG(data->pwm[attr->index],
1243 FAN_CONFIG_INVERT(data->fan_conf,
1244 attr->index)));
1245}
1246
1247static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr,
1248 const char *buf, size_t count)
1249{
1250 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
1251 struct pc87360_data *data = dev_get_drvdata(dev);
1252 long val;
1253 int err;
1254
1255 err = kstrtol(buf, 10, &val);
1256 if (err)
1257 return err;
1258
1259 mutex_lock(&data->update_lock);
1260 data->pwm[attr->index] = PWM_TO_REG(val,
1261 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
1262 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
1263 data->pwm[attr->index]);
1264 mutex_unlock(&data->update_lock);
1265 return count;
1266}
1267
1268static struct sensor_device_attribute pwm[] = {
1269 SENSOR_ATTR_RW(pwm1, pwm, 0),
1270 SENSOR_ATTR_RW(pwm2, pwm, 1),
1271 SENSOR_ATTR_RW(pwm3, pwm, 2),
1272};
1273
1274static ssize_t name_show(struct device *dev,
1275 struct device_attribute *devattr, char *buf)
1276{
1277 struct pc87360_data *data = dev_get_drvdata(dev);
1278 return sprintf(buf, "%s\n", data->name);
1279}
1280
1281static DEVICE_ATTR_RO(name);
1282
1283static void pc87360_remove_files(struct device *dev)
1284{
1285 int i;
1286
1287 device_remove_file(dev, &dev_attr_name);
1288 device_remove_file(dev, &dev_attr_alarms_temp);
1289 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1290 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1291 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1292 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1293 device_remove_file(dev, &pwm[i].dev_attr);
1294 }
1295 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1296 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1297}
1298
1299static void pc87360_init_device(struct platform_device *pdev,
1300 int use_thermistors)
1301{
1302 struct pc87360_data *data = platform_get_drvdata(pdev);
1303 int i, nr;
1304 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1305 const u8 init_temp[3] = { 2, 2, 1 };
1306 u8 reg;
1307
1308 if (init >= 2 && data->innr) {
1309 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1310 PC87365_REG_IN_CONVRATE);
1311 dev_info(&pdev->dev,
1312 "VLM conversion set to 1s period, 160us delay\n");
1313 pc87360_write_value(data, LD_IN, NO_BANK,
1314 PC87365_REG_IN_CONVRATE,
1315 (reg & 0xC0) | 0x11);
1316 }
1317
1318 nr = min(data->innr, 11);
1319 for (i = 0; i < nr; i++) {
1320 reg = pc87360_read_value(data, LD_IN, i,
1321 PC87365_REG_IN_STATUS);
1322 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1323 if (init >= init_in[i]) {
1324 /* Forcibly enable voltage channel */
1325 if (!(reg & CHAN_ENA)) {
1326 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1327 i);
1328 pc87360_write_value(data, LD_IN, i,
1329 PC87365_REG_IN_STATUS,
1330 (reg & 0x68) | 0x87);
1331 }
1332 }
1333 }
1334
1335 /*
1336 * We can't blindly trust the Super-I/O space configuration bit,
1337 * most BIOS won't set it properly
1338 */
1339 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1340 for (i = 11; i < data->innr; i++) {
1341 reg = pc87360_read_value(data, LD_IN, i,
1342 PC87365_REG_TEMP_STATUS);
1343 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1344 /* thermistors are temp[4-6], measured on vin[11-14] */
1345 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1346 }
1347 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1348
1349 i = use_thermistors ? 2 : 0;
1350 for (; i < data->tempnr; i++) {
1351 reg = pc87360_read_value(data, LD_TEMP, i,
1352 PC87365_REG_TEMP_STATUS);
1353 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1354 if (init >= init_temp[i]) {
1355 /* Forcibly enable temperature channel */
1356 if (!(reg & CHAN_ENA)) {
1357 dev_dbg(&pdev->dev,
1358 "Forcibly enabling temp%d\n", i + 1);
1359 pc87360_write_value(data, LD_TEMP, i,
1360 PC87365_REG_TEMP_STATUS,
1361 0xCF);
1362 }
1363 }
1364 }
1365
1366 if (use_thermistors) {
1367 for (i = 11; i < data->innr; i++) {
1368 if (init >= init_in[i]) {
1369 /*
1370 * The pin may already be used by thermal
1371 * diodes
1372 */
1373 reg = pc87360_read_value(data, LD_TEMP,
1374 (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1375 if (reg & CHAN_ENA) {
1376 dev_dbg(&pdev->dev,
1377 "Skipping temp%d, pin already in use by temp%d\n",
1378 i - 7, (i - 11) / 2);
1379 continue;
1380 }
1381
1382 /* Forcibly enable thermistor channel */
1383 reg = pc87360_read_value(data, LD_IN, i,
1384 PC87365_REG_IN_STATUS);
1385 if (!(reg & CHAN_ENA)) {
1386 dev_dbg(&pdev->dev,
1387 "Forcibly enabling temp%d\n",
1388 i - 7);
1389 pc87360_write_value(data, LD_IN, i,
1390 PC87365_REG_TEMP_STATUS,
1391 (reg & 0x60) | 0x8F);
1392 }
1393 }
1394 }
1395 }
1396
1397 if (data->innr) {
1398 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1399 PC87365_REG_IN_CONFIG);
1400 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1401 if (reg & CHAN_ENA) {
1402 dev_dbg(&pdev->dev,
1403 "Forcibly enabling monitoring (VLM)\n");
1404 pc87360_write_value(data, LD_IN, NO_BANK,
1405 PC87365_REG_IN_CONFIG,
1406 reg & 0xFE);
1407 }
1408 }
1409
1410 if (data->tempnr) {
1411 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1412 PC87365_REG_TEMP_CONFIG);
1413 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1414 if (reg & CHAN_ENA) {
1415 dev_dbg(&pdev->dev,
1416 "Forcibly enabling monitoring (TMS)\n");
1417 pc87360_write_value(data, LD_TEMP, NO_BANK,
1418 PC87365_REG_TEMP_CONFIG,
1419 reg & 0xFE);
1420 }
1421
1422 if (init >= 2) {
1423 /* Chip config as documented by National Semi. */
1424 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1425 /*
1426 * We voluntarily omit the bank here, in case the
1427 * sequence itself matters. It shouldn't be a problem,
1428 * since nobody else is supposed to access the
1429 * device at that point.
1430 */
1431 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1432 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1433 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1434 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1435 }
1436 }
1437}
1438
1439static int pc87360_probe(struct platform_device *pdev)
1440{
1441 int i;
1442 struct pc87360_data *data;
1443 int err = 0;
1444 const char *name;
1445 int use_thermistors = 0;
1446 struct device *dev = &pdev->dev;
1447
1448 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1449 if (!data)
1450 return -ENOMEM;
1451
1452 switch (devid) {
1453 default:
1454 name = "pc87360";
1455 data->fannr = 2;
1456 break;
1457 case 0xe8:
1458 name = "pc87363";
1459 data->fannr = 2;
1460 break;
1461 case 0xe4:
1462 name = "pc87364";
1463 data->fannr = 3;
1464 break;
1465 case 0xe5:
1466 name = "pc87365";
1467 data->fannr = extra_isa[0] ? 3 : 0;
1468 data->innr = extra_isa[1] ? 11 : 0;
1469 data->tempnr = extra_isa[2] ? 2 : 0;
1470 break;
1471 case 0xe9:
1472 name = "pc87366";
1473 data->fannr = extra_isa[0] ? 3 : 0;
1474 data->innr = extra_isa[1] ? 14 : 0;
1475 data->tempnr = extra_isa[2] ? 3 : 0;
1476 break;
1477 }
1478
1479 data->name = name;
1480 mutex_init(&data->lock);
1481 mutex_init(&data->update_lock);
1482 platform_set_drvdata(pdev, data);
1483
1484 for (i = 0; i < LDNI_MAX; i++) {
1485 data->address[i] = extra_isa[i];
1486 if (data->address[i]
1487 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1488 DRIVER_NAME)) {
1489 dev_err(dev,
1490 "Region 0x%x-0x%x already in use!\n",
1491 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
1492 return -EBUSY;
1493 }
1494 }
1495
1496 /* Retrieve the fans configuration from Super-I/O space */
1497 if (data->fannr)
1498 data->fan_conf = confreg[0] | (confreg[1] << 8);
1499
1500 /*
1501 * Use the correct reference voltage
1502 * Unless both the VLM and the TMS logical devices agree to
1503 * use an external Vref, the internal one is used.
1504 */
1505 if (data->innr) {
1506 i = pc87360_read_value(data, LD_IN, NO_BANK,
1507 PC87365_REG_IN_CONFIG);
1508 if (data->tempnr) {
1509 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1510 PC87365_REG_TEMP_CONFIG);
1511 }
1512 data->in_vref = (i&0x02) ? 3025 : 2966;
1513 dev_dbg(dev, "Using %s reference voltage\n",
1514 (i&0x02) ? "external" : "internal");
1515
1516 data->vid_conf = confreg[3];
1517 data->vrm = vid_which_vrm();
1518 }
1519
1520 /* Fan clock dividers may be needed before any data is read */
1521 for (i = 0; i < data->fannr; i++) {
1522 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1523 data->fan_status[i] = pc87360_read_value(data,
1524 LD_FAN, NO_BANK,
1525 PC87360_REG_FAN_STATUS(i));
1526 }
1527
1528 if (init > 0) {
1529 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1530 use_thermistors = confreg[2] & 0x40;
1531
1532 pc87360_init_device(pdev, use_thermistors);
1533 }
1534
1535 /* Register all-or-nothing sysfs groups */
1536
1537 if (data->innr) {
1538 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1539 if (err)
1540 goto error;
1541 }
1542
1543 if (data->innr == 14) {
1544 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1545 if (err)
1546 goto error;
1547 }
1548
1549 /* create device attr-files for varying sysfs groups */
1550
1551 if (data->tempnr) {
1552 for (i = 0; i < data->tempnr; i++) {
1553 err = sysfs_create_group(&dev->kobj,
1554 &pc8736x_temp_attr_group[i]);
1555 if (err)
1556 goto error;
1557 }
1558 err = device_create_file(dev, &dev_attr_alarms_temp);
1559 if (err)
1560 goto error;
1561 }
1562
1563 for (i = 0; i < data->fannr; i++) {
1564 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1565 err = sysfs_create_group(&dev->kobj,
1566 &pc8736x_fan_attr_group[i]);
1567 if (err)
1568 goto error;
1569 }
1570 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1571 err = device_create_file(dev, &pwm[i].dev_attr);
1572 if (err)
1573 goto error;
1574 }
1575 }
1576
1577 err = device_create_file(dev, &dev_attr_name);
1578 if (err)
1579 goto error;
1580
1581 data->hwmon_dev = hwmon_device_register(dev);
1582 if (IS_ERR(data->hwmon_dev)) {
1583 err = PTR_ERR(data->hwmon_dev);
1584 goto error;
1585 }
1586 return 0;
1587
1588error:
1589 pc87360_remove_files(dev);
1590 return err;
1591}
1592
1593static void pc87360_remove(struct platform_device *pdev)
1594{
1595 struct pc87360_data *data = platform_get_drvdata(pdev);
1596
1597 hwmon_device_unregister(data->hwmon_dev);
1598 pc87360_remove_files(&pdev->dev);
1599}
1600
1601/*
1602 * Driver data
1603 */
1604static struct platform_driver pc87360_driver = {
1605 .driver = {
1606 .name = DRIVER_NAME,
1607 },
1608 .probe = pc87360_probe,
1609 .remove = pc87360_remove,
1610};
1611
1612/*
1613 * Device detection, registration and update
1614 */
1615
1616static int __init pc87360_find(int sioaddr, u8 *devid,
1617 unsigned short *addresses)
1618{
1619 u16 val;
1620 int i;
1621 int nrdev; /* logical device count */
1622
1623 /* No superio_enter */
1624
1625 /* Identify device */
1626 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1627 switch (val) {
1628 case 0xE1: /* PC87360 */
1629 case 0xE8: /* PC87363 */
1630 case 0xE4: /* PC87364 */
1631 nrdev = 1;
1632 break;
1633 case 0xE5: /* PC87365 */
1634 case 0xE9: /* PC87366 */
1635 nrdev = 3;
1636 break;
1637 default:
1638 superio_exit(sioaddr);
1639 return -ENODEV;
1640 }
1641 /* Remember the device id */
1642 *devid = val;
1643
1644 for (i = 0; i < nrdev; i++) {
1645 /* select logical device */
1646 superio_outb(sioaddr, DEV, logdev[i]);
1647
1648 val = superio_inb(sioaddr, ACT);
1649 if (!(val & 0x01)) {
1650 pr_info("Device 0x%02x not activated\n", logdev[i]);
1651 continue;
1652 }
1653
1654 val = (superio_inb(sioaddr, BASE) << 8)
1655 | superio_inb(sioaddr, BASE + 1);
1656 if (!val) {
1657 pr_info("Base address not set for device 0x%02x\n",
1658 logdev[i]);
1659 continue;
1660 }
1661
1662 addresses[i] = val;
1663
1664 if (i == 0) { /* Fans */
1665 confreg[0] = superio_inb(sioaddr, 0xF0);
1666 confreg[1] = superio_inb(sioaddr, 0xF1);
1667
1668 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1669 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1670 (confreg[0] >> 4) & 1);
1671 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1672 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1673 (confreg[0] >> 7) & 1);
1674 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1675 confreg[1] & 1, (confreg[1] >> 1) & 1,
1676 (confreg[1] >> 2) & 1);
1677 } else if (i == 1) { /* Voltages */
1678 /* Are we using thermistors? */
1679 if (*devid == 0xE9) { /* PC87366 */
1680 /*
1681 * These registers are not logical-device
1682 * specific, just that we won't need them if
1683 * we don't use the VLM device
1684 */
1685 confreg[2] = superio_inb(sioaddr, 0x2B);
1686 confreg[3] = superio_inb(sioaddr, 0x25);
1687
1688 if (confreg[2] & 0x40) {
1689 pr_info("Using thermistors for temperature monitoring\n");
1690 }
1691 if (confreg[3] & 0xE0) {
1692 pr_info("VID inputs routed (mode %u)\n",
1693 confreg[3] >> 5);
1694 }
1695 }
1696 }
1697 }
1698
1699 superio_exit(sioaddr);
1700 return 0;
1701}
1702
1703static int __init pc87360_device_add(unsigned short address)
1704{
1705 struct resource res[3];
1706 int err, i, res_count;
1707
1708 pdev = platform_device_alloc("pc87360", address);
1709 if (!pdev) {
1710 err = -ENOMEM;
1711 pr_err("Device allocation failed\n");
1712 goto exit;
1713 }
1714
1715 memset(res, 0, 3 * sizeof(struct resource));
1716 res_count = 0;
1717 for (i = 0; i < 3; i++) {
1718 if (!extra_isa[i])
1719 continue;
1720 res[res_count].start = extra_isa[i];
1721 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1722 res[res_count].name = "pc87360";
1723 res[res_count].flags = IORESOURCE_IO;
1724
1725 err = acpi_check_resource_conflict(&res[res_count]);
1726 if (err)
1727 goto exit_device_put;
1728
1729 res_count++;
1730 }
1731
1732 err = platform_device_add_resources(pdev, res, res_count);
1733 if (err) {
1734 pr_err("Device resources addition failed (%d)\n", err);
1735 goto exit_device_put;
1736 }
1737
1738 err = platform_device_add(pdev);
1739 if (err) {
1740 pr_err("Device addition failed (%d)\n", err);
1741 goto exit_device_put;
1742 }
1743
1744 return 0;
1745
1746exit_device_put:
1747 platform_device_put(pdev);
1748exit:
1749 return err;
1750}
1751
1752static int __init pc87360_init(void)
1753{
1754 int err, i;
1755 unsigned short address = 0;
1756
1757 if (pc87360_find(0x2e, &devid, extra_isa)
1758 && pc87360_find(0x4e, &devid, extra_isa)) {
1759 pr_warn("PC8736x not detected, module not inserted\n");
1760 return -ENODEV;
1761 }
1762
1763 /* Arbitrarily pick one of the addresses */
1764 for (i = 0; i < 3; i++) {
1765 if (extra_isa[i] != 0x0000) {
1766 address = extra_isa[i];
1767 break;
1768 }
1769 }
1770
1771 if (address == 0x0000) {
1772 pr_warn("No active logical device, module not inserted\n");
1773 return -ENODEV;
1774 }
1775
1776 err = platform_driver_register(&pc87360_driver);
1777 if (err)
1778 goto exit;
1779
1780 /* Sets global pdev as a side effect */
1781 err = pc87360_device_add(address);
1782 if (err)
1783 goto exit_driver;
1784
1785 return 0;
1786
1787 exit_driver:
1788 platform_driver_unregister(&pc87360_driver);
1789 exit:
1790 return err;
1791}
1792
1793static void __exit pc87360_exit(void)
1794{
1795 platform_device_unregister(pdev);
1796 platform_driver_unregister(&pc87360_driver);
1797}
1798
1799MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1800MODULE_DESCRIPTION("PC8736x hardware monitor");
1801MODULE_LICENSE("GPL");
1802MODULE_ALIAS("platform:" DRIVER_NAME);
1803
1804module_init(pc87360_init);
1805module_exit(pc87360_exit);