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hwmon/pc87360 separate alarm files: define some constants
[deliverable/linux.git] / drivers / hwmon / pc87360.c
CommitLineData
1da177e4
LT		 1/*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
f641b588 4 * Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org>
1da177e4
LT		 5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Supports the following chips:
24 *
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
31 *
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
34 */
35
1da177e4
LT		 36#include <linux/module.h>
37#include <linux/init.h>
38#include <linux/slab.h>
39#include <linux/jiffies.h>
f641b588 40#include <linux/platform_device.h>
943b0830 41#include <linux/hwmon.h>
f0986bd8 42#include <linux/hwmon-sysfs.h>
303760b4 43#include <linux/hwmon-vid.h>
943b0830 44#include <linux/err.h>
9a61bf63 45#include <linux/mutex.h>
1da177e4
LT		 46#include <asm/io.h>
47
1da177e4 48static u8 devid;
f641b588 49static struct platform_device *pdev;
2d8672c5 50static unsigned short extra_isa[3];
1da177e4
LT		 51static u8 confreg[4];
52
1da177e4
LT		 53static int init = 1;
54module_param(init, int, 0);
55MODULE_PARM_DESC(init,
56 "Chip initialization level:\n"
57 " 0: None\n"
58 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
59 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
60 " 3: Forcibly enable all voltage and temperature channels, including in9");
61
67b671bc
JD		 62static unsigned short force_id;
63module_param(force_id, ushort, 0);
64MODULE_PARM_DESC(force_id, "Override the detected device ID");
65
1da177e4
LT		 66/*
67 * Super-I/O registers and operations
68 */
69
70#define DEV 0x07 /* Register: Logical device select */
71#define DEVID 0x20 /* Register: Device ID */
72#define ACT 0x30 /* Register: Device activation */
73#define BASE 0x60 /* Register: Base address */
74
75#define FSCM 0x09 /* Logical device: fans */
76#define VLM 0x0d /* Logical device: voltages */
77#define TMS 0x0e /* Logical device: temperatures */
78static const u8 logdev[3] = { FSCM, VLM, TMS };
79
80#define LD_FAN 0
81#define LD_IN 1
82#define LD_TEMP 2
83
84static inline void superio_outb(int sioaddr, int reg, int val)
85{
86 outb(reg, sioaddr);
87 outb(val, sioaddr+1);
88}
89
90static inline int superio_inb(int sioaddr, int reg)
91{
92 outb(reg, sioaddr);
93 return inb(sioaddr+1);
94}
95
96static inline void superio_exit(int sioaddr)
97{
98 outb(0x02, sioaddr);
99 outb(0x02, sioaddr+1);
100}
101
102/*
103 * Logical devices
104 */
105
106#define PC87360_EXTENT 0x10
107#define PC87365_REG_BANK 0x09
108#define NO_BANK 0xff
109
110/*
111 * Fan registers and conversions
112 */
113
114/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
115#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
116#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
117#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
118#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
119#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
120
121#define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
122 480000 / ((val)*(div)))
123#define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
124 480000 / ((val)*(div)))
125#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
126#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
127
128#define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
129#define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
130#define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
131
132#define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
133static inline u8 PWM_TO_REG(int val, int inv)
134{
135 if (inv)
136 val = 255 - val;
137 if (val < 0)
138 return 0;
139 if (val > 255)
140 return 255;
141 return val;
142}
143
144/*
145 * Voltage registers and conversions
146 */
147
148#define PC87365_REG_IN_CONVRATE 0x07
149#define PC87365_REG_IN_CONFIG 0x08
150#define PC87365_REG_IN 0x0B
151#define PC87365_REG_IN_MIN 0x0D
152#define PC87365_REG_IN_MAX 0x0C
153#define PC87365_REG_IN_STATUS 0x0A
154#define PC87365_REG_IN_ALARMS1 0x00
155#define PC87365_REG_IN_ALARMS2 0x01
156#define PC87365_REG_VID 0x06
157
158#define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
159#define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
160 (val)*256 >= (ref)*255 ? 255: \
161 ((val) * 256 + (ref)/2) / (ref))
162
163/*
164 * Temperature registers and conversions
165 */
166
167#define PC87365_REG_TEMP_CONFIG 0x08
168#define PC87365_REG_TEMP 0x0B
169#define PC87365_REG_TEMP_MIN 0x0D
170#define PC87365_REG_TEMP_MAX 0x0C
171#define PC87365_REG_TEMP_CRIT 0x0E
172#define PC87365_REG_TEMP_STATUS 0x0A
173#define PC87365_REG_TEMP_ALARMS 0x00
174
175#define TEMP_FROM_REG(val) ((val) * 1000)
176#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
177 (val) > 127000 ? 127 : \
178 (val) < 0 ? ((val) - 500) / 1000 : \
179 ((val) + 500) / 1000)
180
181/*
f641b588 182 * Device data
1da177e4
LT		 183 */
184
185struct pc87360_data {
f641b588 186 const char *name;
1beeffe4 187 struct device *hwmon_dev;
9a61bf63
IM		 188 struct mutex lock;
189 struct mutex update_lock;
1da177e4
LT		 190 char valid; /* !=0 if following fields are valid */
191 unsigned long last_updated; /* In jiffies */
192
193 int address[3];
194
195 u8 fannr, innr, tempnr;
196
197 u8 fan[3]; /* Register value */
198 u8 fan_min[3]; /* Register value */
199 u8 fan_status[3]; /* Register value */
200 u8 pwm[3]; /* Register value */
201 u16 fan_conf; /* Configuration register values, combined */
202
203 u16 in_vref; /* 1 mV/bit */
204 u8 in[14]; /* Register value */
205 u8 in_min[14]; /* Register value */
206 u8 in_max[14]; /* Register value */
207 u8 in_crit[3]; /* Register value */
208 u8 in_status[14]; /* Register value */
209 u16 in_alarms; /* Register values, combined, masked */
210 u8 vid_conf; /* Configuration register value */
211 u8 vrm;
212 u8 vid; /* Register value */
213
214 s8 temp[3]; /* Register value */
215 s8 temp_min[3]; /* Register value */
216 s8 temp_max[3]; /* Register value */
217 s8 temp_crit[3]; /* Register value */
218 u8 temp_status[3]; /* Register value */
219 u8 temp_alarms; /* Register value, masked */
220};
221
222/*
223 * Functions declaration
224 */
225
f641b588 226static int pc87360_probe(struct platform_device *pdev);
d0546128 227static int __devexit pc87360_remove(struct platform_device *pdev);
1da177e4
LT		 228
229static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
230 u8 reg);
231static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
232 u8 reg, u8 value);
f641b588
JD		 233static void pc87360_init_device(struct platform_device *pdev,
234 int use_thermistors);
1da177e4
LT		 235static struct pc87360_data *pc87360_update_device(struct device *dev);
236
237/*
f641b588 238 * Driver data
1da177e4
LT		 239 */
240
f641b588 241static struct platform_driver pc87360_driver = {
cdaf7934 242 .driver = {
87218842 243 .owner = THIS_MODULE,
cdaf7934
LR		 244 .name = "pc87360",
245 },
f641b588
JD		 246 .probe = pc87360_probe,
247 .remove = __devexit_p(pc87360_remove),
1da177e4
LT		 248};
249
250/*
251 * Sysfs stuff
252 */
253
f0986bd8
JC		 254static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
255{
256 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
257 struct pc87360_data *data = pc87360_update_device(dev);
694fa056
JC		 258 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
259 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
f0986bd8
JC		 260}
261static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
262{
263 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
264 struct pc87360_data *data = pc87360_update_device(dev);
694fa056
JC		 265 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
266 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
f0986bd8
JC		 267}
268static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
269{
270 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
271 struct pc87360_data *data = pc87360_update_device(dev);
272 return sprintf(buf, "%u\n",
694fa056 273 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
f0986bd8
JC		 274}
275static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
276{
277 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
278 struct pc87360_data *data = pc87360_update_device(dev);
279 return sprintf(buf, "%u\n",
694fa056 280 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
f0986bd8
JC		 281}
282static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
283 size_t count)
284{
285 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 286 struct pc87360_data *data = dev_get_drvdata(dev);
11be27ea
JC		 287 long fan_min = simple_strtol(buf, NULL, 10);
288
9a61bf63 289 mutex_lock(&data->update_lock);
11be27ea
JC		 290 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
291
292 /* If it wouldn't fit, change clock divisor */
293 while (fan_min > 255
294 && (data->fan_status[attr->index] & 0x60) != 0x60) {
295 fan_min >>= 1;
296 data->fan[attr->index] >>= 1;
297 data->fan_status[attr->index] += 0x20;
298 }
299 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
300 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
301 data->fan_min[attr->index]);
302
303 /* Write new divider, preserve alarm bits */
304 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
305 data->fan_status[attr->index] & 0xF9);
9a61bf63 306 mutex_unlock(&data->update_lock);
11be27ea
JC		 307
308 return count;
f0986bd8
JC		 309}
310
dedc6a78
JC		 311static struct sensor_device_attribute fan_input[] = {
312 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
313 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
314 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
315};
316static struct sensor_device_attribute fan_status[] = {
317 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
318 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
319 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
320};
321static struct sensor_device_attribute fan_div[] = {
322 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
323 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
324 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
325};
326static struct sensor_device_attribute fan_min[] = {
327 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
328 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
329 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
330};
1da177e4 331
941c5c05
JC		 332#define FAN_UNIT_ATTRS(X) \
333 &fan_input[X].dev_attr.attr, \
334 &fan_status[X].dev_attr.attr, \
335 &fan_div[X].dev_attr.attr, \
336 &fan_min[X].dev_attr.attr
337
f0986bd8
JC		 338static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
339{
340 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
341 struct pc87360_data *data = pc87360_update_device(dev);
342 return sprintf(buf, "%u\n",
694fa056 343 PWM_FROM_REG(data->pwm[attr->index],
f0986bd8 344 FAN_CONFIG_INVERT(data->fan_conf,
694fa056 345 attr->index)));
f0986bd8
JC		 346}
347static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
348 size_t count)
349{
350 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 351 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 352 long val = simple_strtol(buf, NULL, 10);
353
9a61bf63 354 mutex_lock(&data->update_lock);
694fa056
JC		 355 data->pwm[attr->index] = PWM_TO_REG(val,
356 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
357 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
358 data->pwm[attr->index]);
9a61bf63 359 mutex_unlock(&data->update_lock);
f0986bd8
JC		 360 return count;
361}
362
dedc6a78
JC		 363static struct sensor_device_attribute pwm[] = {
364 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
365 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
366 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
367};
1da177e4 368
941c5c05
JC		 369static struct attribute * pc8736x_fan_attr_array[] = {
370 FAN_UNIT_ATTRS(0),
371 FAN_UNIT_ATTRS(1),
372 FAN_UNIT_ATTRS(2),
373 &pwm[0].dev_attr.attr,
374 &pwm[1].dev_attr.attr,
375 &pwm[2].dev_attr.attr,
376 NULL
377};
378static const struct attribute_group pc8736x_fan_group = {
379 .attrs = pc8736x_fan_attr_array,
380};
381
f0986bd8
JC		 382static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
383{
384 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
385 struct pc87360_data *data = pc87360_update_device(dev);
386 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
387 data->in_vref));
388}
389static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
390{
391 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
392 struct pc87360_data *data = pc87360_update_device(dev);
393 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
394 data->in_vref));
395}
396static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
397{
398 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
399 struct pc87360_data *data = pc87360_update_device(dev);
400 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
401 data->in_vref));
402}
403static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
404{
405 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
406 struct pc87360_data *data = pc87360_update_device(dev);
407 return sprintf(buf, "%u\n", data->in_status[attr->index]);
408}
409static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
410 size_t count)
411{
412 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 413 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 414 long val = simple_strtol(buf, NULL, 10);
415
9a61bf63 416 mutex_lock(&data->update_lock);
f0986bd8
JC		 417 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
418 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
419 data->in_min[attr->index]);
9a61bf63 420 mutex_unlock(&data->update_lock);
f0986bd8
JC		 421 return count;
422}
423static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
424 size_t count)
425{
426 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 427 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 428 long val = simple_strtol(buf, NULL, 10);
429
9a61bf63 430 mutex_lock(&data->update_lock);
f0986bd8
JC		 431 data->in_max[attr->index] = IN_TO_REG(val,
432 data->in_vref);
433 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
434 data->in_max[attr->index]);
9a61bf63 435 mutex_unlock(&data->update_lock);
f0986bd8
JC		 436 return count;
437}
438
dedc6a78
JC		 439static struct sensor_device_attribute in_input[] = {
440 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
441 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
442 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
443 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
444 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
445 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
446 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
447 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
448 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
449 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
450 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
451};
452static struct sensor_device_attribute in_status[] = {
453 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
454 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
455 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
456 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
457 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
458 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
459 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
460 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
461 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
462 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
463 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
464};
465static struct sensor_device_attribute in_min[] = {
466 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
467 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
468 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
469 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
470 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
471 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
472 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
473 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
474 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
475 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
476 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
477};
478static struct sensor_device_attribute in_max[] = {
479 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
480 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
481 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
482 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
483 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
484 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
485 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
486 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
487 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
488 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
489 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
490};
1da177e4 491
28f74e71
JC		 492/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
493#define CHAN_ALM_MIN 0x02 /* min limit crossed */
494#define CHAN_ALM_MAX 0x04 /* max limit exceeded */
495#define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
496
941c5c05
JC		 497#define VIN_UNIT_ATTRS(X) \
498 &in_input[X].dev_attr.attr, \
499 &in_status[X].dev_attr.attr, \
500 &in_min[X].dev_attr.attr, \
501 &in_max[X].dev_attr.attr
502
44646c19
JC		 503static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
504{
505 struct pc87360_data *data = pc87360_update_device(dev);
506 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
507}
508static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
509
510static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
511{
90d6619a 512 struct pc87360_data *data = dev_get_drvdata(dev);
44646c19
JC		 513 return sprintf(buf, "%u\n", data->vrm);
514}
515static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
516{
f641b588 517 struct pc87360_data *data = dev_get_drvdata(dev);
44646c19
JC		 518 data->vrm = simple_strtoul(buf, NULL, 10);
519 return count;
520}
521static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
522
523static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
524{
525 struct pc87360_data *data = pc87360_update_device(dev);
526 return sprintf(buf, "%u\n", data->in_alarms);
527}
528static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
529
941c5c05
JC		 530static struct attribute *pc8736x_vin_attr_array[] = {
531 VIN_UNIT_ATTRS(0),
532 VIN_UNIT_ATTRS(1),
533 VIN_UNIT_ATTRS(2),
534 VIN_UNIT_ATTRS(3),
535 VIN_UNIT_ATTRS(4),
536 VIN_UNIT_ATTRS(5),
537 VIN_UNIT_ATTRS(6),
538 VIN_UNIT_ATTRS(7),
539 VIN_UNIT_ATTRS(8),
540 VIN_UNIT_ATTRS(9),
541 VIN_UNIT_ATTRS(10),
542 &dev_attr_cpu0_vid.attr,
543 &dev_attr_vrm.attr,
544 &dev_attr_alarms_in.attr,
545 NULL
546};
547static const struct attribute_group pc8736x_vin_group = {
548 .attrs = pc8736x_vin_attr_array,
549};
550
f0986bd8
JC		 551static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
552{
553 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
554 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 555 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
f0986bd8
JC		 556 data->in_vref));
557}
558static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
559{
560 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
561 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 562 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
f0986bd8
JC		 563 data->in_vref));
564}
565static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
566{
567 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
568 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 569 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
f0986bd8
JC		 570 data->in_vref));
571}
572static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
573{
574 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
575 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 576 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
f0986bd8
JC		 577 data->in_vref));
578}
579static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
580{
581 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
582 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 583 return sprintf(buf, "%u\n", data->in_status[attr->index]);
f0986bd8
JC		 584}
585static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
586 size_t count)
587{
588 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 589 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 590 long val = simple_strtol(buf, NULL, 10);
591
9a61bf63 592 mutex_lock(&data->update_lock);
694fa056
JC		 593 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
594 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
595 data->in_min[attr->index]);
9a61bf63 596 mutex_unlock(&data->update_lock);
f0986bd8
JC		 597 return count;
598}
599static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
600 size_t count)
601{
602 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 603 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 604 long val = simple_strtol(buf, NULL, 10);
605
9a61bf63 606 mutex_lock(&data->update_lock);
694fa056
JC		 607 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
608 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
609 data->in_max[attr->index]);
9a61bf63 610 mutex_unlock(&data->update_lock);
f0986bd8
JC		 611 return count;
612}
613static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
614 size_t count)
615{
616 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 617 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 618 long val = simple_strtol(buf, NULL, 10);
619
9a61bf63 620 mutex_lock(&data->update_lock);
694fa056
JC		 621 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
622 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
623 data->in_crit[attr->index-11]);
9a61bf63 624 mutex_unlock(&data->update_lock);
f0986bd8
JC		 625 return count;
626}
627
dedc6a78
JC		 628/* the +11 term below reflects the fact that VLM units 11,12,13 are
629 used in the chip to measure voltage across the thermistors
630*/
631static struct sensor_device_attribute therm_input[] = {
632 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
633 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
634 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
635};
636static struct sensor_device_attribute therm_status[] = {
637 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
638 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
639 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
640};
641static struct sensor_device_attribute therm_min[] = {
642 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
643 show_therm_min, set_therm_min, 0+11),
644 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
645 show_therm_min, set_therm_min, 1+11),
646 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
647 show_therm_min, set_therm_min, 2+11),
648};
649static struct sensor_device_attribute therm_max[] = {
650 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
651 show_therm_max, set_therm_max, 0+11),
652 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
653 show_therm_max, set_therm_max, 1+11),
654 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
655 show_therm_max, set_therm_max, 2+11),
656};
657static struct sensor_device_attribute therm_crit[] = {
658 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
659 show_therm_crit, set_therm_crit, 0+11),
660 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
661 show_therm_crit, set_therm_crit, 1+11),
662 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
663 show_therm_crit, set_therm_crit, 2+11),
664};
1da177e4 665
941c5c05
JC		 666#define THERM_UNIT_ATTRS(X) \
667 &therm_input[X].dev_attr.attr, \
668 &therm_status[X].dev_attr.attr, \
669 &therm_min[X].dev_attr.attr, \
670 &therm_max[X].dev_attr.attr, \
671 &therm_crit[X].dev_attr.attr
672
673static struct attribute * pc8736x_therm_attr_array[] = {
674 THERM_UNIT_ATTRS(0),
675 THERM_UNIT_ATTRS(1),
676 THERM_UNIT_ATTRS(2),
677 NULL
678};
679static const struct attribute_group pc8736x_therm_group = {
680 .attrs = pc8736x_therm_attr_array,
681};
682
f0986bd8
JC		 683static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
684{
685 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
686 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 687 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
f0986bd8
JC		 688}
689static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
690{
691 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
692 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 693 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
f0986bd8
JC		 694}
695static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
696{
697 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
698 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 699 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
f0986bd8
JC		 700}
701static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
702{
703 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
704 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 705 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
f0986bd8
JC		 706}
707static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
708{
709 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
710 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 711 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
f0986bd8
JC		 712}
713static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
714 size_t count)
715{
716 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 717 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 718 long val = simple_strtol(buf, NULL, 10);
719
9a61bf63 720 mutex_lock(&data->update_lock);
694fa056
JC		 721 data->temp_min[attr->index] = TEMP_TO_REG(val);
722 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
723 data->temp_min[attr->index]);
9a61bf63 724 mutex_unlock(&data->update_lock);
f0986bd8
JC		 725 return count;
726}
727static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
728 size_t count)
729{
730 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 731 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 732 long val = simple_strtol(buf, NULL, 10);
733
9a61bf63 734 mutex_lock(&data->update_lock);
694fa056
JC		 735 data->temp_max[attr->index] = TEMP_TO_REG(val);
736 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
737 data->temp_max[attr->index]);
9a61bf63 738 mutex_unlock(&data->update_lock);
f0986bd8
JC		 739 return count;
740}
741static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
742 size_t count)
743{
744 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
f641b588 745 struct pc87360_data *data = dev_get_drvdata(dev);
f0986bd8
JC		 746 long val = simple_strtol(buf, NULL, 10);
747
9a61bf63 748 mutex_lock(&data->update_lock);
694fa056
JC		 749 data->temp_crit[attr->index] = TEMP_TO_REG(val);
750 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
751 data->temp_crit[attr->index]);
9a61bf63 752 mutex_unlock(&data->update_lock);
f0986bd8
JC		 753 return count;
754}
755
dedc6a78
JC		 756static struct sensor_device_attribute temp_input[] = {
757 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
758 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
759 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
760};
761static struct sensor_device_attribute temp_status[] = {
762 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
763 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
764 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
765};
766static struct sensor_device_attribute temp_min[] = {
767 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
768 show_temp_min, set_temp_min, 0),
769 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
770 show_temp_min, set_temp_min, 1),
771 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
772 show_temp_min, set_temp_min, 2),
773};
774static struct sensor_device_attribute temp_max[] = {
775 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
776 show_temp_max, set_temp_max, 0),
777 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
778 show_temp_max, set_temp_max, 1),
779 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
780 show_temp_max, set_temp_max, 2),
781};
782static struct sensor_device_attribute temp_crit[] = {
783 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
784 show_temp_crit, set_temp_crit, 0),
785 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
786 show_temp_crit, set_temp_crit, 1),
787 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
788 show_temp_crit, set_temp_crit, 2),
789};
1da177e4 790
a5099cfc 791static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 792{
793 struct pc87360_data *data = pc87360_update_device(dev);
794 return sprintf(buf, "%u\n", data->temp_alarms);
795}
796static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
797
941c5c05
JC		 798#define TEMP_UNIT_ATTRS(X) \
799 &temp_input[X].dev_attr.attr, \
800 &temp_status[X].dev_attr.attr, \
801 &temp_min[X].dev_attr.attr, \
802 &temp_max[X].dev_attr.attr, \
803 &temp_crit[X].dev_attr.attr
804
805static struct attribute * pc8736x_temp_attr_array[] = {
806 TEMP_UNIT_ATTRS(0),
807 TEMP_UNIT_ATTRS(1),
808 TEMP_UNIT_ATTRS(2),
809 /* include the few miscellaneous atts here */
810 &dev_attr_alarms_temp.attr,
811 NULL
812};
813static const struct attribute_group pc8736x_temp_group = {
814 .attrs = pc8736x_temp_attr_array,
815};
816
f641b588
JD		 817static ssize_t show_name(struct device *dev, struct device_attribute
818 *devattr, char *buf)
819{
820 struct pc87360_data *data = dev_get_drvdata(dev);
821 return sprintf(buf, "%s\n", data->name);
822}
823static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
824
1da177e4
LT		 825/*
826 * Device detection, registration and update
827 */
828
e6cfb3ad 829static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1da177e4
LT		 830{
831 u16 val;
832 int i;
833 int nrdev; /* logical device count */
834
835 /* No superio_enter */
836
837 /* Identify device */
67b671bc 838 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1da177e4
LT		 839 switch (val) {
840 case 0xE1: /* PC87360 */
841 case 0xE8: /* PC87363 */
842 case 0xE4: /* PC87364 */
843 nrdev = 1;
844 break;
845 case 0xE5: /* PC87365 */
846 case 0xE9: /* PC87366 */
847 nrdev = 3;
848 break;
849 default:
850 superio_exit(sioaddr);
851 return -ENODEV;
852 }
853 /* Remember the device id */
854 *devid = val;
855
856 for (i = 0; i < nrdev; i++) {
857 /* select logical device */
858 superio_outb(sioaddr, DEV, logdev[i]);
859
860 val = superio_inb(sioaddr, ACT);
861 if (!(val & 0x01)) {
862 printk(KERN_INFO "pc87360: Device 0x%02x not "
863 "activated\n", logdev[i]);
864 continue;
865 }
866
867 val = (superio_inb(sioaddr, BASE) << 8)
868 | superio_inb(sioaddr, BASE + 1);
869 if (!val) {
870 printk(KERN_INFO "pc87360: Base address not set for "
871 "device 0x%02x\n", logdev[i]);
872 continue;
873 }
874
2d8672c5 875 addresses[i] = val;
1da177e4
LT		 876
877 if (i==0) { /* Fans */
878 confreg[0] = superio_inb(sioaddr, 0xF0);
879 confreg[1] = superio_inb(sioaddr, 0xF1);
880
881#ifdef DEBUG
882 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
883 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
884 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
885 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
886 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
887 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
888 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
889 "ctrl=%d inv=%d\n", confreg[1]&1,
890 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
891#endif
892 } else if (i==1) { /* Voltages */
893 /* Are we using thermistors? */
894 if (*devid == 0xE9) { /* PC87366 */
895 /* These registers are not logical-device
896 specific, just that we won't need them if
897 we don't use the VLM device */
898 confreg[2] = superio_inb(sioaddr, 0x2B);
899 confreg[3] = superio_inb(sioaddr, 0x25);
900
901 if (confreg[2] & 0x40) {
902 printk(KERN_INFO "pc87360: Using "
903 "thermistors for temperature "
904 "monitoring\n");
905 }
906 if (confreg[3] & 0xE0) {
907 printk(KERN_INFO "pc87360: VID "
908 "inputs routed (mode %u)\n",
909 confreg[3] >> 5);
910 }
911 }
912 }
913 }
914
915 superio_exit(sioaddr);
916 return 0;
917}
918
f641b588 919static int __devinit pc87360_probe(struct platform_device *pdev)
1da177e4
LT		 920{
921 int i;
1da177e4
LT		 922 struct pc87360_data *data;
923 int err = 0;
924 const char *name = "pc87360";
925 int use_thermistors = 0;
f641b588 926 struct device *dev = &pdev->dev;
1da177e4 927
ba9c2e8d 928 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1da177e4 929 return -ENOMEM;
1da177e4 930
1da177e4
LT		 931 data->fannr = 2;
932 data->innr = 0;
933 data->tempnr = 0;
934
935 switch (devid) {
936 case 0xe8:
937 name = "pc87363";
938 break;
939 case 0xe4:
940 name = "pc87364";
941 data->fannr = 3;
942 break;
943 case 0xe5:
944 name = "pc87365";
945 data->fannr = extra_isa[0] ? 3 : 0;
946 data->innr = extra_isa[1] ? 11 : 0;
947 data->tempnr = extra_isa[2] ? 2 : 0;
948 break;
949 case 0xe9:
950 name = "pc87366";
951 data->fannr = extra_isa[0] ? 3 : 0;
952 data->innr = extra_isa[1] ? 14 : 0;
953 data->tempnr = extra_isa[2] ? 3 : 0;
954 break;
955 }
956
f641b588 957 data->name = name;
1da177e4 958 data->valid = 0;
f641b588 959 mutex_init(&data->lock);
9a61bf63 960 mutex_init(&data->update_lock);
f641b588 961 platform_set_drvdata(pdev, data);
1da177e4
LT		 962
963 for (i = 0; i < 3; i++) {
964 if (((data->address[i] = extra_isa[i]))
965 && !request_region(extra_isa[i], PC87360_EXTENT,
cdaf7934 966 pc87360_driver.driver.name)) {
f641b588 967 dev_err(dev, "Region 0x%x-0x%x already "
1da177e4
LT		 968 "in use!\n", extra_isa[i],
969 extra_isa[i]+PC87360_EXTENT-1);
970 for (i--; i >= 0; i--)
971 release_region(extra_isa[i], PC87360_EXTENT);
972 err = -EBUSY;
973 goto ERROR1;
974 }
975 }
976
977 /* Retrieve the fans configuration from Super-I/O space */
978 if (data->fannr)
979 data->fan_conf = confreg[0] | (confreg[1] << 8);
980
1da177e4
LT		 981 /* Use the correct reference voltage
982 Unless both the VLM and the TMS logical devices agree to
983 use an external Vref, the internal one is used. */
984 if (data->innr) {
985 i = pc87360_read_value(data, LD_IN, NO_BANK,
986 PC87365_REG_IN_CONFIG);
987 if (data->tempnr) {
988 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
989 PC87365_REG_TEMP_CONFIG);
990 }
991 data->in_vref = (i&0x02) ? 3025 : 2966;
f641b588 992 dev_dbg(dev, "Using %s reference voltage\n",
1da177e4
LT		 993 (i&0x02) ? "external" : "internal");
994
995 data->vid_conf = confreg[3];
3d7f9a86 996 data->vrm = vid_which_vrm();
1da177e4
LT		 997 }
998
999 /* Fan clock dividers may be needed before any data is read */
1000 for (i = 0; i < data->fannr; i++) {
1001 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1002 data->fan_status[i] = pc87360_read_value(data,
1003 LD_FAN, NO_BANK,
1004 PC87360_REG_FAN_STATUS(i));
1005 }
1006
1007 if (init > 0) {
1008 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1009 use_thermistors = confreg[2] & 0x40;
1010
f641b588 1011 pc87360_init_device(pdev, use_thermistors);
1da177e4
LT		 1012 }
1013
f3722d5b
JC		 1014 /* Register all-or-nothing sysfs groups */
1015
1016 if (data->innr &&
f641b588 1017 (err = sysfs_create_group(&dev->kobj,
f3722d5b 1018 &pc8736x_vin_group)))
943b0830 1019 goto ERROR3;
943b0830 1020
f3722d5b 1021 if (data->innr == 14 &&
f641b588 1022 (err = sysfs_create_group(&dev->kobj,
f3722d5b
JC		 1023 &pc8736x_therm_group)))
1024 goto ERROR3;
1025
1026 /* create device attr-files for varying sysfs groups */
1da177e4
LT		 1027
1028 if (data->tempnr) {
dedc6a78 1029 for (i = 0; i < data->tempnr; i++) {
f3722d5b
JC		 1030 if ((err = device_create_file(dev,
1031 &temp_input[i].dev_attr))
1032 || (err = device_create_file(dev,
1033 &temp_min[i].dev_attr))
1034 || (err = device_create_file(dev,
1035 &temp_max[i].dev_attr))
1036 || (err = device_create_file(dev,
1037 &temp_crit[i].dev_attr))
1038 || (err = device_create_file(dev,
1039 &temp_status[i].dev_attr)))
1040 goto ERROR3;
1da177e4 1041 }
f3722d5b
JC		 1042 if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1043 goto ERROR3;
1da177e4 1044 }
1da177e4 1045
dedc6a78 1046 for (i = 0; i < data->fannr; i++) {
f3722d5b
JC		 1047 if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1048 && ((err = device_create_file(dev,
1049 &fan_input[i].dev_attr))
1050 || (err = device_create_file(dev,
1051 &fan_min[i].dev_attr))
1052 || (err = device_create_file(dev,
1053 &fan_div[i].dev_attr))
1054 || (err = device_create_file(dev,
1055 &fan_status[i].dev_attr))))
1056 goto ERROR3;
1057
1058 if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1059 && (err = device_create_file(dev, &pwm[i].dev_attr)))
1060 goto ERROR3;
1da177e4
LT		 1061 }
1062
f641b588
JD		 1063 if ((err = device_create_file(dev, &dev_attr_name)))
1064 goto ERROR3;
1065
1beeffe4
TJ		 1066 data->hwmon_dev = hwmon_device_register(dev);
1067 if (IS_ERR(data->hwmon_dev)) {
1068 err = PTR_ERR(data->hwmon_dev);
f3722d5b
JC		 1069 goto ERROR3;
1070 }
1da177e4
LT		 1071 return 0;
1072
943b0830 1073ERROR3:
f641b588 1074 device_remove_file(dev, &dev_attr_name);
f3722d5b 1075 /* can still remove groups whose members were added individually */
f641b588
JD		 1076 sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1077 sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1078 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1079 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1da177e4
LT		 1080 for (i = 0; i < 3; i++) {
1081 if (data->address[i]) {
1082 release_region(data->address[i], PC87360_EXTENT);
1083 }
1084 }
1085ERROR1:
1086 kfree(data);
1087 return err;
1088}
1089
f641b588 1090static int __devexit pc87360_remove(struct platform_device *pdev)
1da177e4 1091{
f641b588 1092 struct pc87360_data *data = platform_get_drvdata(pdev);
1da177e4
LT		 1093 int i;
1094
1beeffe4 1095 hwmon_device_unregister(data->hwmon_dev);
943b0830 1096
f641b588
JD		 1097 device_remove_file(&pdev->dev, &dev_attr_name);
1098 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1099 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1100 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1101 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1da177e4
LT		 1102
1103 for (i = 0; i < 3; i++) {
1104 if (data->address[i]) {
1105 release_region(data->address[i], PC87360_EXTENT);
1106 }
1107 }
1108 kfree(data);
1109
1110 return 0;
1111}
1112
1113/* ldi is the logical device index
1114 bank is for voltages and temperatures only */
1115static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1116 u8 reg)
1117{
1118 int res;
1119
9a61bf63 1120 mutex_lock(&(data->lock));
1da177e4
LT		 1121 if (bank != NO_BANK)
1122 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1123 res = inb_p(data->address[ldi] + reg);
9a61bf63 1124 mutex_unlock(&(data->lock));
1da177e4
LT		 1125
1126 return res;
1127}
1128
1129static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1130 u8 reg, u8 value)
1131{
9a61bf63 1132 mutex_lock(&(data->lock));
1da177e4
LT		 1133 if (bank != NO_BANK)
1134 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1135 outb_p(value, data->address[ldi] + reg);
9a61bf63 1136 mutex_unlock(&(data->lock));
1da177e4
LT		 1137}
1138
28f74e71
JC		 1139/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1140#define CHAN_CNVRTD 0x80 /* new data ready */
1141#define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1142#define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1143#define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1144
f641b588
JD		 1145static void pc87360_init_device(struct platform_device *pdev,
1146 int use_thermistors)
1da177e4 1147{
f641b588 1148 struct pc87360_data *data = platform_get_drvdata(pdev);
1da177e4
LT		 1149 int i, nr;
1150 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1151 const u8 init_temp[3] = { 2, 2, 1 };
1152 u8 reg;
1153
1154 if (init >= 2 && data->innr) {
1155 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1156 PC87365_REG_IN_CONVRATE);
f641b588 1157 dev_info(&pdev->dev, "VLM conversion set to "
1da177e4
LT		 1158 "1s period, 160us delay\n");
1159 pc87360_write_value(data, LD_IN, NO_BANK,
1160 PC87365_REG_IN_CONVRATE,
1161 (reg & 0xC0) | 0x11);
1162 }
1163
1164 nr = data->innr < 11 ? data->innr : 11;
dedc6a78 1165 for (i = 0; i < nr; i++) {
1da177e4
LT		 1166 if (init >= init_in[i]) {
1167 /* Forcibly enable voltage channel */
1168 reg = pc87360_read_value(data, LD_IN, i,
1169 PC87365_REG_IN_STATUS);
28f74e71 1170 if (!(reg & CHAN_ENA)) {
f641b588 1171 dev_dbg(&pdev->dev, "Forcibly "
1da177e4
LT		 1172 "enabling in%d\n", i);
1173 pc87360_write_value(data, LD_IN, i,
1174 PC87365_REG_IN_STATUS,
1175 (reg & 0x68) | 0x87);
1176 }
1177 }
1178 }
1179
1180 /* We can't blindly trust the Super-I/O space configuration bit,
1181 most BIOS won't set it properly */
dedc6a78 1182 for (i = 11; i < data->innr; i++) {
1da177e4
LT		 1183 reg = pc87360_read_value(data, LD_IN, i,
1184 PC87365_REG_TEMP_STATUS);
28f74e71 1185 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1da177e4
LT		 1186 }
1187
1188 i = use_thermistors ? 2 : 0;
dedc6a78 1189 for (; i < data->tempnr; i++) {
1da177e4
LT		 1190 if (init >= init_temp[i]) {
1191 /* Forcibly enable temperature channel */
1192 reg = pc87360_read_value(data, LD_TEMP, i,
1193 PC87365_REG_TEMP_STATUS);
28f74e71 1194 if (!(reg & CHAN_ENA)) {
f641b588 1195 dev_dbg(&pdev->dev, "Forcibly "
1da177e4
LT		 1196 "enabling temp%d\n", i+1);
1197 pc87360_write_value(data, LD_TEMP, i,
1198 PC87365_REG_TEMP_STATUS,
1199 0xCF);
1200 }
1201 }
1202 }
1203
1204 if (use_thermistors) {
dedc6a78 1205 for (i = 11; i < data->innr; i++) {
1da177e4
LT		 1206 if (init >= init_in[i]) {
1207 /* The pin may already be used by thermal
1208 diodes */
1209 reg = pc87360_read_value(data, LD_TEMP,
1210 (i-11)/2, PC87365_REG_TEMP_STATUS);
28f74e71 1211 if (reg & CHAN_ENA) {
f641b588 1212 dev_dbg(&pdev->dev, "Skipping "
1da177e4
LT		 1213 "temp%d, pin already in use "
1214 "by temp%d\n", i-7, (i-11)/2);
1215 continue;
1216 }
1217
1218 /* Forcibly enable thermistor channel */
1219 reg = pc87360_read_value(data, LD_IN, i,
1220 PC87365_REG_IN_STATUS);
28f74e71 1221 if (!(reg & CHAN_ENA)) {
f641b588 1222 dev_dbg(&pdev->dev, "Forcibly "
1da177e4
LT		 1223 "enabling temp%d\n", i-7);
1224 pc87360_write_value(data, LD_IN, i,
1225 PC87365_REG_TEMP_STATUS,
1226 (reg & 0x60) | 0x8F);
1227 }
1228 }
1229 }
1230 }
1231
1232 if (data->innr) {
1233 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1234 PC87365_REG_IN_CONFIG);
28f74e71 1235 if (reg & CHAN_ENA) {
f641b588 1236 dev_dbg(&pdev->dev, "Forcibly "
1da177e4
LT		 1237 "enabling monitoring (VLM)\n");
1238 pc87360_write_value(data, LD_IN, NO_BANK,
1239 PC87365_REG_IN_CONFIG,
1240 reg & 0xFE);
1241 }
1242 }
1243
1244 if (data->tempnr) {
1245 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1246 PC87365_REG_TEMP_CONFIG);
28f74e71 1247 if (reg & CHAN_ENA) {
f641b588 1248 dev_dbg(&pdev->dev, "Forcibly enabling "
1da177e4
LT		 1249 "monitoring (TMS)\n");
1250 pc87360_write_value(data, LD_TEMP, NO_BANK,
1251 PC87365_REG_TEMP_CONFIG,
1252 reg & 0xFE);
1253 }
1254
1255 if (init >= 2) {
1256 /* Chip config as documented by National Semi. */
1257 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1258 /* We voluntarily omit the bank here, in case the
1259 sequence itself matters. It shouldn't be a problem,
1260 since nobody else is supposed to access the
1261 device at that point. */
1262 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1263 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1264 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1265 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1266 }
1267 }
1268}
1269
f641b588 1270static void pc87360_autodiv(struct device *dev, int nr)
1da177e4 1271{
f641b588 1272 struct pc87360_data *data = dev_get_drvdata(dev);
1da177e4
LT		 1273 u8 old_min = data->fan_min[nr];
1274
1275 /* Increase clock divider if needed and possible */
1276 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1277 || (data->fan[nr] >= 224)) { /* next to overflow */
1278 if ((data->fan_status[nr] & 0x60) != 0x60) {
1279 data->fan_status[nr] += 0x20;
1280 data->fan_min[nr] >>= 1;
1281 data->fan[nr] >>= 1;
f641b588 1282 dev_dbg(dev, "Increasing "
1da177e4
LT		 1283 "clock divider to %d for fan %d\n",
1284 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1285 }
1286 } else {
1287 /* Decrease clock divider if possible */
1288 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1289 && data->fan[nr] < 85 /* bad accuracy */
1290 && (data->fan_status[nr] & 0x60) != 0x00) {
1291 data->fan_status[nr] -= 0x20;
1292 data->fan_min[nr] <<= 1;
1293 data->fan[nr] <<= 1;
f641b588 1294 dev_dbg(dev, "Decreasing "
1da177e4
LT		 1295 "clock divider to %d for fan %d\n",
1296 FAN_DIV_FROM_REG(data->fan_status[nr]),
1297 nr+1);
1298 }
1299 }
1300
1301 /* Write new fan min if it changed */
1302 if (old_min != data->fan_min[nr]) {
1303 pc87360_write_value(data, LD_FAN, NO_BANK,
1304 PC87360_REG_FAN_MIN(nr),
1305 data->fan_min[nr]);
1306 }
1307}
1308
1309static struct pc87360_data *pc87360_update_device(struct device *dev)
1310{
f641b588 1311 struct pc87360_data *data = dev_get_drvdata(dev);
1da177e4
LT		 1312 u8 i;
1313
9a61bf63 1314 mutex_lock(&data->update_lock);
1da177e4
LT		 1315
1316 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
f641b588 1317 dev_dbg(dev, "Data update\n");
1da177e4
LT		 1318
1319 /* Fans */
1320 for (i = 0; i < data->fannr; i++) {
1321 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1322 data->fan_status[i] =
1323 pc87360_read_value(data, LD_FAN,
1324 NO_BANK, PC87360_REG_FAN_STATUS(i));
1325 data->fan[i] = pc87360_read_value(data, LD_FAN,
1326 NO_BANK, PC87360_REG_FAN(i));
1327 data->fan_min[i] = pc87360_read_value(data,
1328 LD_FAN, NO_BANK,
1329 PC87360_REG_FAN_MIN(i));
1330 /* Change clock divider if needed */
f641b588 1331 pc87360_autodiv(dev, i);
1da177e4
LT		 1332 /* Clear bits and write new divider */
1333 pc87360_write_value(data, LD_FAN, NO_BANK,
1334 PC87360_REG_FAN_STATUS(i),
1335 data->fan_status[i]);
1336 }
1337 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1338 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1339 NO_BANK, PC87360_REG_PWM(i));
1340 }
1341
1342 /* Voltages */
1343 for (i = 0; i < data->innr; i++) {
1344 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1345 PC87365_REG_IN_STATUS);
1346 /* Clear bits */
1347 pc87360_write_value(data, LD_IN, i,
1348 PC87365_REG_IN_STATUS,
1349 data->in_status[i]);
28f74e71 1350 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1da177e4
LT		 1351 data->in[i] = pc87360_read_value(data, LD_IN,
1352 i, PC87365_REG_IN);
1353 }
28f74e71 1354 if (data->in_status[i] & CHAN_ENA) {
1da177e4
LT		 1355 data->in_min[i] = pc87360_read_value(data,
1356 LD_IN, i,
1357 PC87365_REG_IN_MIN);
1358 data->in_max[i] = pc87360_read_value(data,
1359 LD_IN, i,
1360 PC87365_REG_IN_MAX);
1361 if (i >= 11)
1362 data->in_crit[i-11] =
1363 pc87360_read_value(data, LD_IN,
1364 i, PC87365_REG_TEMP_CRIT);
1365 }
1366 }
1367 if (data->innr) {
1368 data->in_alarms = pc87360_read_value(data, LD_IN,
1369 NO_BANK, PC87365_REG_IN_ALARMS1)
1370 | ((pc87360_read_value(data, LD_IN,
1371 NO_BANK, PC87365_REG_IN_ALARMS2)
1372 & 0x07) << 8);
1373 data->vid = (data->vid_conf & 0xE0) ?
1374 pc87360_read_value(data, LD_IN,
1375 NO_BANK, PC87365_REG_VID) : 0x1F;
1376 }
1377
1378 /* Temperatures */
1379 for (i = 0; i < data->tempnr; i++) {
1380 data->temp_status[i] = pc87360_read_value(data,
1381 LD_TEMP, i,
1382 PC87365_REG_TEMP_STATUS);
1383 /* Clear bits */
1384 pc87360_write_value(data, LD_TEMP, i,
1385 PC87365_REG_TEMP_STATUS,
1386 data->temp_status[i]);
28f74e71 1387 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1da177e4
LT		 1388 data->temp[i] = pc87360_read_value(data,
1389 LD_TEMP, i,
1390 PC87365_REG_TEMP);
1391 }
28f74e71 1392 if (data->temp_status[i] & CHAN_ENA) {
1da177e4
LT		 1393 data->temp_min[i] = pc87360_read_value(data,
1394 LD_TEMP, i,
1395 PC87365_REG_TEMP_MIN);
1396 data->temp_max[i] = pc87360_read_value(data,
1397 LD_TEMP, i,
1398 PC87365_REG_TEMP_MAX);
1399 data->temp_crit[i] = pc87360_read_value(data,
1400 LD_TEMP, i,
1401 PC87365_REG_TEMP_CRIT);
1402 }
1403 }
1404 if (data->tempnr) {
1405 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1406 NO_BANK, PC87365_REG_TEMP_ALARMS)
1407 & 0x3F;
1408 }
1409
1410 data->last_updated = jiffies;
1411 data->valid = 1;
1412 }
1413
9a61bf63 1414 mutex_unlock(&data->update_lock);
1da177e4
LT		 1415
1416 return data;
1417}
1418
f641b588
JD		 1419static int __init pc87360_device_add(unsigned short address)
1420{
1421 struct resource res = {
1422 .name = "pc87360",
1423 .flags = IORESOURCE_IO,
1424 };
1425 int err, i;
1426
1427 pdev = platform_device_alloc("pc87360", address);
1428 if (!pdev) {
1429 err = -ENOMEM;
1430 printk(KERN_ERR "pc87360: Device allocation failed\n");
1431 goto exit;
1432 }
1433
1434 for (i = 0; i < 3; i++) {
1435 if (!extra_isa[i])
1436 continue;
1437 res.start = extra_isa[i];
1438 res.end = extra_isa[i] + PC87360_EXTENT - 1;
1439 err = platform_device_add_resources(pdev, &res, 1);
1440 if (err) {
1441 printk(KERN_ERR "pc87360: Device resource[%d] "
1442 "addition failed (%d)\n", i, err);
1443 goto exit_device_put;
1444 }
1445 }
1446
1447 err = platform_device_add(pdev);
1448 if (err) {
1449 printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
1450 err);
1451 goto exit_device_put;
1452 }
1453
1454 return 0;
1455
1456exit_device_put:
1457 platform_device_put(pdev);
1458exit:
1459 return err;
1460}
1461
1da177e4
LT		 1462static int __init pc87360_init(void)
1463{
f641b588
JD		 1464 int err, i;
1465 unsigned short address = 0;
1da177e4
LT		 1466
1467 if (pc87360_find(0x2e, &devid, extra_isa)
1468 && pc87360_find(0x4e, &devid, extra_isa)) {
1469 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1470 "module not inserted.\n");
1471 return -ENODEV;
1472 }
1473
1474 /* Arbitrarily pick one of the addresses */
1475 for (i = 0; i < 3; i++) {
1476 if (extra_isa[i] != 0x0000) {
2d8672c5 1477 address = extra_isa[i];
1da177e4
LT		 1478 break;
1479 }
1480 }
1481
2d8672c5 1482 if (address == 0x0000) {
1da177e4
LT		 1483 printk(KERN_WARNING "pc87360: No active logical device, "
1484 "module not inserted.\n");
1485 return -ENODEV;
1486 }
1487
f641b588
JD		 1488 err = platform_driver_register(&pc87360_driver);
1489 if (err)
1490 goto exit;
1491
1492 /* Sets global pdev as a side effect */
1493 err = pc87360_device_add(address);
1494 if (err)
1495 goto exit_driver;
1496
1497 return 0;
1498
1499 exit_driver:
1500 platform_driver_unregister(&pc87360_driver);
1501 exit:
1502 return err;
1da177e4
LT		 1503}
1504
1505static void __exit pc87360_exit(void)
1506{
f641b588
JD		 1507 platform_device_unregister(pdev);
1508 platform_driver_unregister(&pc87360_driver);
1da177e4
LT		 1509}
1510
1511
1512MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1513MODULE_DESCRIPTION("PC8736x hardware monitor");
1514MODULE_LICENSE("GPL");
1515
1516module_init(pc87360_init);
1517module_exit(pc87360_exit);
Linux kernel - Deliverables
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