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i2c-isa: Restore driver owner
[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
4 * Copyright (C) 2004 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
1da177e4
LT		 36#include <linux/module.h>
37#include <linux/init.h>
38#include <linux/slab.h>
39#include <linux/jiffies.h>
40#include <linux/i2c.h>
fde09509 41#include <linux/i2c-isa.h>
943b0830 42#include <linux/hwmon.h>
f0986bd8 43#include <linux/hwmon-sysfs.h>
303760b4 44#include <linux/hwmon-vid.h>
943b0830 45#include <linux/err.h>
9a61bf63 46#include <linux/mutex.h>
1da177e4
LT		 47#include <asm/io.h>
48
1da177e4 49static u8 devid;
2d8672c5
JD		 50static unsigned short address;
51static unsigned short extra_isa[3];
1da177e4
LT		 52static u8 confreg[4];
53
54enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
1da177e4
LT		 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
65/*
66 * Super-I/O registers and operations
67 */
68
69#define DEV 0x07 /* Register: Logical device select */
70#define DEVID 0x20 /* Register: Device ID */
71#define ACT 0x30 /* Register: Device activation */
72#define BASE 0x60 /* Register: Base address */
73
74#define FSCM 0x09 /* Logical device: fans */
75#define VLM 0x0d /* Logical device: voltages */
76#define TMS 0x0e /* Logical device: temperatures */
77static const u8 logdev[3] = { FSCM, VLM, TMS };
78
79#define LD_FAN 0
80#define LD_IN 1
81#define LD_TEMP 2
82
83static inline void superio_outb(int sioaddr, int reg, int val)
84{
85 outb(reg, sioaddr);
86 outb(val, sioaddr+1);
87}
88
89static inline int superio_inb(int sioaddr, int reg)
90{
91 outb(reg, sioaddr);
92 return inb(sioaddr+1);
93}
94
95static inline void superio_exit(int sioaddr)
96{
97 outb(0x02, sioaddr);
98 outb(0x02, sioaddr+1);
99}
100
101/*
102 * Logical devices
103 */
104
105#define PC87360_EXTENT 0x10
106#define PC87365_REG_BANK 0x09
107#define NO_BANK 0xff
108
109/*
110 * Fan registers and conversions
111 */
112
113/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
114#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
115#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
116#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
117#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
118#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
119
120#define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
121 480000 / ((val)*(div)))
122#define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
123 480000 / ((val)*(div)))
124#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
125#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
126
127#define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
128#define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
129#define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
130
131#define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
132static inline u8 PWM_TO_REG(int val, int inv)
133{
134 if (inv)
135 val = 255 - val;
136 if (val < 0)
137 return 0;
138 if (val > 255)
139 return 255;
140 return val;
141}
142
143/*
144 * Voltage registers and conversions
145 */
146
147#define PC87365_REG_IN_CONVRATE 0x07
148#define PC87365_REG_IN_CONFIG 0x08
149#define PC87365_REG_IN 0x0B
150#define PC87365_REG_IN_MIN 0x0D
151#define PC87365_REG_IN_MAX 0x0C
152#define PC87365_REG_IN_STATUS 0x0A
153#define PC87365_REG_IN_ALARMS1 0x00
154#define PC87365_REG_IN_ALARMS2 0x01
155#define PC87365_REG_VID 0x06
156
157#define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
158#define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
159 (val)*256 >= (ref)*255 ? 255: \
160 ((val) * 256 + (ref)/2) / (ref))
161
162/*
163 * Temperature registers and conversions
164 */
165
166#define PC87365_REG_TEMP_CONFIG 0x08
167#define PC87365_REG_TEMP 0x0B
168#define PC87365_REG_TEMP_MIN 0x0D
169#define PC87365_REG_TEMP_MAX 0x0C
170#define PC87365_REG_TEMP_CRIT 0x0E
171#define PC87365_REG_TEMP_STATUS 0x0A
172#define PC87365_REG_TEMP_ALARMS 0x00
173
174#define TEMP_FROM_REG(val) ((val) * 1000)
175#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
176 (val) > 127000 ? 127 : \
177 (val) < 0 ? ((val) - 500) / 1000 : \
178 ((val) + 500) / 1000)
179
180/*
181 * Client data (each client gets its own)
182 */
183
184struct pc87360_data {
185 struct i2c_client client;
943b0830 186 struct class_device *class_dev;
9a61bf63
IM		 187 struct mutex lock;
188 struct mutex update_lock;
1da177e4
LT		 189 char valid; /* !=0 if following fields are valid */
190 unsigned long last_updated; /* In jiffies */
191
192 int address[3];
193
194 u8 fannr, innr, tempnr;
195
196 u8 fan[3]; /* Register value */
197 u8 fan_min[3]; /* Register value */
198 u8 fan_status[3]; /* Register value */
199 u8 pwm[3]; /* Register value */
200 u16 fan_conf; /* Configuration register values, combined */
201
202 u16 in_vref; /* 1 mV/bit */
203 u8 in[14]; /* Register value */
204 u8 in_min[14]; /* Register value */
205 u8 in_max[14]; /* Register value */
206 u8 in_crit[3]; /* Register value */
207 u8 in_status[14]; /* Register value */
208 u16 in_alarms; /* Register values, combined, masked */
209 u8 vid_conf; /* Configuration register value */
210 u8 vrm;
211 u8 vid; /* Register value */
212
213 s8 temp[3]; /* Register value */
214 s8 temp_min[3]; /* Register value */
215 s8 temp_max[3]; /* Register value */
216 s8 temp_crit[3]; /* Register value */
217 u8 temp_status[3]; /* Register value */
218 u8 temp_alarms; /* Register value, masked */
219};
220
221/*
222 * Functions declaration
223 */
224
2d8672c5 225static int pc87360_detect(struct i2c_adapter *adapter);
1da177e4
LT		 226static int pc87360_detach_client(struct i2c_client *client);
227
228static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
229 u8 reg);
230static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
231 u8 reg, u8 value);
232static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
233static struct pc87360_data *pc87360_update_device(struct device *dev);
234
235/*
236 * Driver data (common to all clients)
237 */
238
239static struct i2c_driver pc87360_driver = {
cdaf7934 240 .driver = {
87218842 241 .owner = THIS_MODULE,
cdaf7934
LR		 242 .name = "pc87360",
243 },
2d8672c5 244 .attach_adapter = pc87360_detect,
1da177e4
LT		 245 .detach_client = pc87360_detach_client,
246};
247
248/*
249 * Sysfs stuff
250 */
251
f0986bd8
JC		 252static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
253{
254 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
255 struct pc87360_data *data = pc87360_update_device(dev);
694fa056
JC		 256 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
257 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
f0986bd8
JC		 258}
259static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
260{
261 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
262 struct pc87360_data *data = pc87360_update_device(dev);
694fa056
JC		 263 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
264 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
f0986bd8
JC		 265}
266static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
267{
268 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
269 struct pc87360_data *data = pc87360_update_device(dev);
270 return sprintf(buf, "%u\n",
694fa056 271 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
f0986bd8
JC		 272}
273static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
274{
275 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
276 struct pc87360_data *data = pc87360_update_device(dev);
277 return sprintf(buf, "%u\n",
694fa056 278 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
f0986bd8
JC		 279}
280static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
281 size_t count)
282{
283 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
11be27ea
JC		 284 struct i2c_client *client = to_i2c_client(dev);
285 struct pc87360_data *data = i2c_get_clientdata(client);
286 long fan_min = simple_strtol(buf, NULL, 10);
287
9a61bf63 288 mutex_lock(&data->update_lock);
11be27ea
JC		 289 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
290
291 /* If it wouldn't fit, change clock divisor */
292 while (fan_min > 255
293 && (data->fan_status[attr->index] & 0x60) != 0x60) {
294 fan_min >>= 1;
295 data->fan[attr->index] >>= 1;
296 data->fan_status[attr->index] += 0x20;
297 }
298 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
299 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
300 data->fan_min[attr->index]);
301
302 /* Write new divider, preserve alarm bits */
303 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
304 data->fan_status[attr->index] & 0xF9);
9a61bf63 305 mutex_unlock(&data->update_lock);
11be27ea
JC		 306
307 return count;
f0986bd8
JC		 308}
309
dedc6a78
JC		 310static struct sensor_device_attribute fan_input[] = {
311 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
312 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
313 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
314};
315static struct sensor_device_attribute fan_status[] = {
316 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
317 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
318 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
319};
320static struct sensor_device_attribute fan_div[] = {
321 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
322 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
323 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
324};
325static struct sensor_device_attribute fan_min[] = {
326 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
327 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
328 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
329};
1da177e4 330
f0986bd8
JC		 331static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
332{
333 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
334 struct pc87360_data *data = pc87360_update_device(dev);
335 return sprintf(buf, "%u\n",
694fa056 336 PWM_FROM_REG(data->pwm[attr->index],
f0986bd8 337 FAN_CONFIG_INVERT(data->fan_conf,
694fa056 338 attr->index)));
f0986bd8
JC		 339}
340static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
341 size_t count)
342{
343 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
344 struct i2c_client *client = to_i2c_client(dev);
345 struct pc87360_data *data = i2c_get_clientdata(client);
346 long val = simple_strtol(buf, NULL, 10);
347
9a61bf63 348 mutex_lock(&data->update_lock);
694fa056
JC		 349 data->pwm[attr->index] = PWM_TO_REG(val,
350 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
351 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
352 data->pwm[attr->index]);
9a61bf63 353 mutex_unlock(&data->update_lock);
f0986bd8
JC		 354 return count;
355}
356
dedc6a78
JC		 357static struct sensor_device_attribute pwm[] = {
358 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
359 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
360 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
361};
1da177e4 362
f0986bd8
JC		 363static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
364{
365 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
366 struct pc87360_data *data = pc87360_update_device(dev);
367 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
368 data->in_vref));
369}
370static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
371{
372 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
373 struct pc87360_data *data = pc87360_update_device(dev);
374 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
375 data->in_vref));
376}
377static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
378{
379 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
380 struct pc87360_data *data = pc87360_update_device(dev);
381 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
382 data->in_vref));
383}
384static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
385{
386 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
387 struct pc87360_data *data = pc87360_update_device(dev);
388 return sprintf(buf, "%u\n", data->in_status[attr->index]);
389}
390static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
391 size_t count)
392{
393 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
394 struct i2c_client *client = to_i2c_client(dev);
395 struct pc87360_data *data = i2c_get_clientdata(client);
396 long val = simple_strtol(buf, NULL, 10);
397
9a61bf63 398 mutex_lock(&data->update_lock);
f0986bd8
JC		 399 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
400 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
401 data->in_min[attr->index]);
9a61bf63 402 mutex_unlock(&data->update_lock);
f0986bd8
JC		 403 return count;
404}
405static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
406 size_t count)
407{
408 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
409 struct i2c_client *client = to_i2c_client(dev);
410 struct pc87360_data *data = i2c_get_clientdata(client);
411 long val = simple_strtol(buf, NULL, 10);
412
9a61bf63 413 mutex_lock(&data->update_lock);
f0986bd8
JC		 414 data->in_max[attr->index] = IN_TO_REG(val,
415 data->in_vref);
416 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
417 data->in_max[attr->index]);
9a61bf63 418 mutex_unlock(&data->update_lock);
f0986bd8
JC		 419 return count;
420}
421
dedc6a78
JC		 422static struct sensor_device_attribute in_input[] = {
423 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
424 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
425 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
426 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
427 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
428 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
429 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
430 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
431 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
432 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
433 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
434};
435static struct sensor_device_attribute in_status[] = {
436 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
437 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
438 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
439 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
440 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
441 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
442 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
443 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
444 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
445 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
446 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
447};
448static struct sensor_device_attribute in_min[] = {
449 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
450 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
451 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
452 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
453 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
454 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
455 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
456 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
457 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
458 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
459 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
460};
461static struct sensor_device_attribute in_max[] = {
462 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
463 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
464 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
465 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
466 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
467 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
468 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
469 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
470 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
471 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
472 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
473};
1da177e4 474
f0986bd8
JC		 475static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
476{
477 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
478 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 479 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
f0986bd8
JC		 480 data->in_vref));
481}
482static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
483{
484 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
485 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 486 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
f0986bd8
JC		 487 data->in_vref));
488}
489static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
490{
491 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
492 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 493 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
f0986bd8
JC		 494 data->in_vref));
495}
496static ssize_t show_therm_crit(struct device *dev, 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);
694fa056 500 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
f0986bd8
JC		 501 data->in_vref));
502}
503static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
504{
505 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
506 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 507 return sprintf(buf, "%u\n", data->in_status[attr->index]);
f0986bd8
JC		 508}
509static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
510 size_t count)
511{
512 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
513 struct i2c_client *client = to_i2c_client(dev);
514 struct pc87360_data *data = i2c_get_clientdata(client);
515 long val = simple_strtol(buf, NULL, 10);
516
9a61bf63 517 mutex_lock(&data->update_lock);
694fa056
JC		 518 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
519 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
520 data->in_min[attr->index]);
9a61bf63 521 mutex_unlock(&data->update_lock);
f0986bd8
JC		 522 return count;
523}
524static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
525 size_t count)
526{
527 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
528 struct i2c_client *client = to_i2c_client(dev);
529 struct pc87360_data *data = i2c_get_clientdata(client);
530 long val = simple_strtol(buf, NULL, 10);
531
9a61bf63 532 mutex_lock(&data->update_lock);
694fa056
JC		 533 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
534 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
535 data->in_max[attr->index]);
9a61bf63 536 mutex_unlock(&data->update_lock);
f0986bd8
JC		 537 return count;
538}
539static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
540 size_t count)
541{
542 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
543 struct i2c_client *client = to_i2c_client(dev);
544 struct pc87360_data *data = i2c_get_clientdata(client);
545 long val = simple_strtol(buf, NULL, 10);
546
9a61bf63 547 mutex_lock(&data->update_lock);
694fa056
JC		 548 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
549 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
550 data->in_crit[attr->index-11]);
9a61bf63 551 mutex_unlock(&data->update_lock);
f0986bd8
JC		 552 return count;
553}
554
dedc6a78
JC		 555/* the +11 term below reflects the fact that VLM units 11,12,13 are
556 used in the chip to measure voltage across the thermistors
557*/
558static struct sensor_device_attribute therm_input[] = {
559 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
560 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
561 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
562};
563static struct sensor_device_attribute therm_status[] = {
564 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
565 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
566 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
567};
568static struct sensor_device_attribute therm_min[] = {
569 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
570 show_therm_min, set_therm_min, 0+11),
571 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
572 show_therm_min, set_therm_min, 1+11),
573 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
574 show_therm_min, set_therm_min, 2+11),
575};
576static struct sensor_device_attribute therm_max[] = {
577 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
578 show_therm_max, set_therm_max, 0+11),
579 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
580 show_therm_max, set_therm_max, 1+11),
581 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
582 show_therm_max, set_therm_max, 2+11),
583};
584static struct sensor_device_attribute therm_crit[] = {
585 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
586 show_therm_crit, set_therm_crit, 0+11),
587 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
588 show_therm_crit, set_therm_crit, 1+11),
589 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
590 show_therm_crit, set_therm_crit, 2+11),
591};
1da177e4 592
a5099cfc 593static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 594{
595 struct pc87360_data *data = pc87360_update_device(dev);
596 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
597}
598static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
599
a5099cfc 600static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 601{
602 struct pc87360_data *data = pc87360_update_device(dev);
603 return sprintf(buf, "%u\n", data->vrm);
604}
a5099cfc 605static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1da177e4
LT		 606{
607 struct i2c_client *client = to_i2c_client(dev);
608 struct pc87360_data *data = i2c_get_clientdata(client);
609 data->vrm = simple_strtoul(buf, NULL, 10);
610 return count;
611}
612static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
613
a5099cfc 614static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 615{
616 struct pc87360_data *data = pc87360_update_device(dev);
617 return sprintf(buf, "%u\n", data->in_alarms);
618}
619static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
620
f0986bd8
JC		 621static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
622{
623 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
624 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 625 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
f0986bd8
JC		 626}
627static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
628{
629 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
630 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 631 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
f0986bd8
JC		 632}
633static ssize_t show_temp_max(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);
694fa056 637 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
f0986bd8
JC		 638}
639static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
640{
641 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
642 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 643 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
f0986bd8
JC		 644}
645static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
646{
647 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
648 struct pc87360_data *data = pc87360_update_device(dev);
694fa056 649 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
f0986bd8
JC		 650}
651static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
652 size_t count)
653{
654 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
655 struct i2c_client *client = to_i2c_client(dev);
656 struct pc87360_data *data = i2c_get_clientdata(client);
657 long val = simple_strtol(buf, NULL, 10);
658
9a61bf63 659 mutex_lock(&data->update_lock);
694fa056
JC		 660 data->temp_min[attr->index] = TEMP_TO_REG(val);
661 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
662 data->temp_min[attr->index]);
9a61bf63 663 mutex_unlock(&data->update_lock);
f0986bd8
JC		 664 return count;
665}
666static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
667 size_t count)
668{
669 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
670 struct i2c_client *client = to_i2c_client(dev);
671 struct pc87360_data *data = i2c_get_clientdata(client);
672 long val = simple_strtol(buf, NULL, 10);
673
9a61bf63 674 mutex_lock(&data->update_lock);
694fa056
JC		 675 data->temp_max[attr->index] = TEMP_TO_REG(val);
676 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
677 data->temp_max[attr->index]);
9a61bf63 678 mutex_unlock(&data->update_lock);
f0986bd8
JC		 679 return count;
680}
681static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
682 size_t count)
683{
684 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
685 struct i2c_client *client = to_i2c_client(dev);
686 struct pc87360_data *data = i2c_get_clientdata(client);
687 long val = simple_strtol(buf, NULL, 10);
688
9a61bf63 689 mutex_lock(&data->update_lock);
694fa056
JC		 690 data->temp_crit[attr->index] = TEMP_TO_REG(val);
691 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
692 data->temp_crit[attr->index]);
9a61bf63 693 mutex_unlock(&data->update_lock);
f0986bd8
JC		 694 return count;
695}
696
dedc6a78
JC		 697static struct sensor_device_attribute temp_input[] = {
698 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
699 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
700 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
701};
702static struct sensor_device_attribute temp_status[] = {
703 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
704 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
705 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
706};
707static struct sensor_device_attribute temp_min[] = {
708 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
709 show_temp_min, set_temp_min, 0),
710 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
711 show_temp_min, set_temp_min, 1),
712 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
713 show_temp_min, set_temp_min, 2),
714};
715static struct sensor_device_attribute temp_max[] = {
716 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
717 show_temp_max, set_temp_max, 0),
718 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
719 show_temp_max, set_temp_max, 1),
720 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
721 show_temp_max, set_temp_max, 2),
722};
723static struct sensor_device_attribute temp_crit[] = {
724 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
725 show_temp_crit, set_temp_crit, 0),
726 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
727 show_temp_crit, set_temp_crit, 1),
728 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
729 show_temp_crit, set_temp_crit, 2),
730};
1da177e4 731
a5099cfc 732static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 733{
734 struct pc87360_data *data = pc87360_update_device(dev);
735 return sprintf(buf, "%u\n", data->temp_alarms);
736}
737static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
738
739/*
740 * Device detection, registration and update
741 */
742
e6cfb3ad 743static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1da177e4
LT		 744{
745 u16 val;
746 int i;
747 int nrdev; /* logical device count */
748
749 /* No superio_enter */
750
751 /* Identify device */
752 val = superio_inb(sioaddr, DEVID);
753 switch (val) {
754 case 0xE1: /* PC87360 */
755 case 0xE8: /* PC87363 */
756 case 0xE4: /* PC87364 */
757 nrdev = 1;
758 break;
759 case 0xE5: /* PC87365 */
760 case 0xE9: /* PC87366 */
761 nrdev = 3;
762 break;
763 default:
764 superio_exit(sioaddr);
765 return -ENODEV;
766 }
767 /* Remember the device id */
768 *devid = val;
769
770 for (i = 0; i < nrdev; i++) {
771 /* select logical device */
772 superio_outb(sioaddr, DEV, logdev[i]);
773
774 val = superio_inb(sioaddr, ACT);
775 if (!(val & 0x01)) {
776 printk(KERN_INFO "pc87360: Device 0x%02x not "
777 "activated\n", logdev[i]);
778 continue;
779 }
780
781 val = (superio_inb(sioaddr, BASE) << 8)
782 | superio_inb(sioaddr, BASE + 1);
783 if (!val) {
784 printk(KERN_INFO "pc87360: Base address not set for "
785 "device 0x%02x\n", logdev[i]);
786 continue;
787 }
788
2d8672c5 789 addresses[i] = val;
1da177e4
LT		 790
791 if (i==0) { /* Fans */
792 confreg[0] = superio_inb(sioaddr, 0xF0);
793 confreg[1] = superio_inb(sioaddr, 0xF1);
794
795#ifdef DEBUG
796 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
797 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
798 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
799 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
800 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
801 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
802 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
803 "ctrl=%d inv=%d\n", confreg[1]&1,
804 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
805#endif
806 } else if (i==1) { /* Voltages */
807 /* Are we using thermistors? */
808 if (*devid == 0xE9) { /* PC87366 */
809 /* These registers are not logical-device
810 specific, just that we won't need them if
811 we don't use the VLM device */
812 confreg[2] = superio_inb(sioaddr, 0x2B);
813 confreg[3] = superio_inb(sioaddr, 0x25);
814
815 if (confreg[2] & 0x40) {
816 printk(KERN_INFO "pc87360: Using "
817 "thermistors for temperature "
818 "monitoring\n");
819 }
820 if (confreg[3] & 0xE0) {
821 printk(KERN_INFO "pc87360: VID "
822 "inputs routed (mode %u)\n",
823 confreg[3] >> 5);
824 }
825 }
826 }
827 }
828
829 superio_exit(sioaddr);
830 return 0;
831}
832
2d8672c5 833static int pc87360_detect(struct i2c_adapter *adapter)
1da177e4
LT		 834{
835 int i;
dedc6a78 836 struct i2c_client *client;
1da177e4
LT		 837 struct pc87360_data *data;
838 int err = 0;
839 const char *name = "pc87360";
840 int use_thermistors = 0;
dedc6a78 841 struct device *dev;
1da177e4 842
ba9c2e8d 843 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1da177e4 844 return -ENOMEM;
1da177e4 845
dedc6a78
JC		 846 client = &data->client;
847 dev = &client->dev;
848 i2c_set_clientdata(client, data);
849 client->addr = address;
9a61bf63 850 mutex_init(&data->lock);
dedc6a78
JC		 851 client->adapter = adapter;
852 client->driver = &pc87360_driver;
853 client->flags = 0;
1da177e4
LT		 854
855 data->fannr = 2;
856 data->innr = 0;
857 data->tempnr = 0;
858
859 switch (devid) {
860 case 0xe8:
861 name = "pc87363";
862 break;
863 case 0xe4:
864 name = "pc87364";
865 data->fannr = 3;
866 break;
867 case 0xe5:
868 name = "pc87365";
869 data->fannr = extra_isa[0] ? 3 : 0;
870 data->innr = extra_isa[1] ? 11 : 0;
871 data->tempnr = extra_isa[2] ? 2 : 0;
872 break;
873 case 0xe9:
874 name = "pc87366";
875 data->fannr = extra_isa[0] ? 3 : 0;
876 data->innr = extra_isa[1] ? 14 : 0;
877 data->tempnr = extra_isa[2] ? 3 : 0;
878 break;
879 }
880
dedc6a78 881 strlcpy(client->name, name, sizeof(client->name));
1da177e4 882 data->valid = 0;
9a61bf63 883 mutex_init(&data->update_lock);
1da177e4
LT		 884
885 for (i = 0; i < 3; i++) {
886 if (((data->address[i] = extra_isa[i]))
887 && !request_region(extra_isa[i], PC87360_EXTENT,
cdaf7934 888 pc87360_driver.driver.name)) {
dedc6a78 889 dev_err(&client->dev, "Region 0x%x-0x%x already "
1da177e4
LT		 890 "in use!\n", extra_isa[i],
891 extra_isa[i]+PC87360_EXTENT-1);
892 for (i--; i >= 0; i--)
893 release_region(extra_isa[i], PC87360_EXTENT);
894 err = -EBUSY;
895 goto ERROR1;
896 }
897 }
898
899 /* Retrieve the fans configuration from Super-I/O space */
900 if (data->fannr)
901 data->fan_conf = confreg[0] | (confreg[1] << 8);
902
dedc6a78 903 if ((err = i2c_attach_client(client)))
1da177e4
LT		 904 goto ERROR2;
905
906 /* Use the correct reference voltage
907 Unless both the VLM and the TMS logical devices agree to
908 use an external Vref, the internal one is used. */
909 if (data->innr) {
910 i = pc87360_read_value(data, LD_IN, NO_BANK,
911 PC87365_REG_IN_CONFIG);
912 if (data->tempnr) {
913 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
914 PC87365_REG_TEMP_CONFIG);
915 }
916 data->in_vref = (i&0x02) ? 3025 : 2966;
dedc6a78 917 dev_dbg(&client->dev, "Using %s reference voltage\n",
1da177e4
LT		 918 (i&0x02) ? "external" : "internal");
919
920 data->vid_conf = confreg[3];
921 data->vrm = 90;
922 }
923
924 /* Fan clock dividers may be needed before any data is read */
925 for (i = 0; i < data->fannr; i++) {
926 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
927 data->fan_status[i] = pc87360_read_value(data,
928 LD_FAN, NO_BANK,
929 PC87360_REG_FAN_STATUS(i));
930 }
931
932 if (init > 0) {
933 if (devid == 0xe9 && data->address[1]) /* PC87366 */
934 use_thermistors = confreg[2] & 0x40;
935
dedc6a78 936 pc87360_init_client(client, use_thermistors);
1da177e4
LT		 937 }
938
939 /* Register sysfs hooks */
dedc6a78 940 data->class_dev = hwmon_device_register(&client->dev);
943b0830
MH		 941 if (IS_ERR(data->class_dev)) {
942 err = PTR_ERR(data->class_dev);
943 goto ERROR3;
944 }
945
1da177e4 946 if (data->innr) {
dedc6a78
JC		 947 for (i = 0; i < 11; i++) {
948 device_create_file(dev, &in_input[i].dev_attr);
949 device_create_file(dev, &in_min[i].dev_attr);
950 device_create_file(dev, &in_max[i].dev_attr);
951 device_create_file(dev, &in_status[i].dev_attr);
952 }
953 device_create_file(dev, &dev_attr_cpu0_vid);
954 device_create_file(dev, &dev_attr_vrm);
955 device_create_file(dev, &dev_attr_alarms_in);
1da177e4
LT		 956 }
957
958 if (data->tempnr) {
dedc6a78
JC		 959 for (i = 0; i < data->tempnr; i++) {
960 device_create_file(dev, &temp_input[i].dev_attr);
961 device_create_file(dev, &temp_min[i].dev_attr);
962 device_create_file(dev, &temp_max[i].dev_attr);
963 device_create_file(dev, &temp_crit[i].dev_attr);
964 device_create_file(dev, &temp_status[i].dev_attr);
1da177e4 965 }
dedc6a78
JC		 966 device_create_file(dev, &dev_attr_alarms_temp);
967 }
1da177e4 968
dedc6a78
JC		 969 if (data->innr == 14) {
970 for (i = 0; i < 3; i++) {
971 device_create_file(dev, &therm_input[i].dev_attr);
972 device_create_file(dev, &therm_min[i].dev_attr);
973 device_create_file(dev, &therm_max[i].dev_attr);
974 device_create_file(dev, &therm_crit[i].dev_attr);
975 device_create_file(dev, &therm_status[i].dev_attr);
1da177e4 976 }
1da177e4 977 }
1da177e4 978
dedc6a78
JC		 979 for (i = 0; i < data->fannr; i++) {
980 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
981 device_create_file(dev, &fan_input[i].dev_attr);
982 device_create_file(dev, &fan_min[i].dev_attr);
983 device_create_file(dev, &fan_div[i].dev_attr);
984 device_create_file(dev, &fan_status[i].dev_attr);
985 }
986 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
987 device_create_file(dev, &pwm[i].dev_attr);
1da177e4
LT		 988 }
989
990 return 0;
991
943b0830 992ERROR3:
dedc6a78 993 i2c_detach_client(client);
1da177e4
LT		 994ERROR2:
995 for (i = 0; i < 3; i++) {
996 if (data->address[i]) {
997 release_region(data->address[i], PC87360_EXTENT);
998 }
999 }
1000ERROR1:
1001 kfree(data);
1002 return err;
1003}
1004
1005static int pc87360_detach_client(struct i2c_client *client)
1006{
1007 struct pc87360_data *data = i2c_get_clientdata(client);
1008 int i;
1009
943b0830
MH		 1010 hwmon_device_unregister(data->class_dev);
1011
7bef5594 1012 if ((i = i2c_detach_client(client)))
1da177e4 1013 return i;
1da177e4
LT		 1014
1015 for (i = 0; i < 3; i++) {
1016 if (data->address[i]) {
1017 release_region(data->address[i], PC87360_EXTENT);
1018 }
1019 }
1020 kfree(data);
1021
1022 return 0;
1023}
1024
1025/* ldi is the logical device index
1026 bank is for voltages and temperatures only */
1027static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1028 u8 reg)
1029{
1030 int res;
1031
9a61bf63 1032 mutex_lock(&(data->lock));
1da177e4
LT		 1033 if (bank != NO_BANK)
1034 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1035 res = inb_p(data->address[ldi] + reg);
9a61bf63 1036 mutex_unlock(&(data->lock));
1da177e4
LT		 1037
1038 return res;
1039}
1040
1041static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1042 u8 reg, u8 value)
1043{
9a61bf63 1044 mutex_lock(&(data->lock));
1da177e4
LT		 1045 if (bank != NO_BANK)
1046 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1047 outb_p(value, data->address[ldi] + reg);
9a61bf63 1048 mutex_unlock(&(data->lock));
1da177e4
LT		 1049}
1050
1051static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1052{
1053 struct pc87360_data *data = i2c_get_clientdata(client);
1054 int i, nr;
1055 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1056 const u8 init_temp[3] = { 2, 2, 1 };
1057 u8 reg;
1058
1059 if (init >= 2 && data->innr) {
1060 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1061 PC87365_REG_IN_CONVRATE);
368609c5 1062 dev_info(&client->dev, "VLM conversion set to "
1da177e4
LT		 1063 "1s period, 160us delay\n");
1064 pc87360_write_value(data, LD_IN, NO_BANK,
1065 PC87365_REG_IN_CONVRATE,
1066 (reg & 0xC0) | 0x11);
1067 }
1068
1069 nr = data->innr < 11 ? data->innr : 11;
dedc6a78 1070 for (i = 0; i < nr; i++) {
1da177e4
LT		 1071 if (init >= init_in[i]) {
1072 /* Forcibly enable voltage channel */
1073 reg = pc87360_read_value(data, LD_IN, i,
1074 PC87365_REG_IN_STATUS);
1075 if (!(reg & 0x01)) {
1076 dev_dbg(&client->dev, "Forcibly "
1077 "enabling in%d\n", i);
1078 pc87360_write_value(data, LD_IN, i,
1079 PC87365_REG_IN_STATUS,
1080 (reg & 0x68) | 0x87);
1081 }
1082 }
1083 }
1084
1085 /* We can't blindly trust the Super-I/O space configuration bit,
1086 most BIOS won't set it properly */
dedc6a78 1087 for (i = 11; i < data->innr; i++) {
1da177e4
LT		 1088 reg = pc87360_read_value(data, LD_IN, i,
1089 PC87365_REG_TEMP_STATUS);
1090 use_thermistors = use_thermistors || (reg & 0x01);
1091 }
1092
1093 i = use_thermistors ? 2 : 0;
dedc6a78 1094 for (; i < data->tempnr; i++) {
1da177e4
LT		 1095 if (init >= init_temp[i]) {
1096 /* Forcibly enable temperature channel */
1097 reg = pc87360_read_value(data, LD_TEMP, i,
1098 PC87365_REG_TEMP_STATUS);
1099 if (!(reg & 0x01)) {
1100 dev_dbg(&client->dev, "Forcibly "
1101 "enabling temp%d\n", i+1);
1102 pc87360_write_value(data, LD_TEMP, i,
1103 PC87365_REG_TEMP_STATUS,
1104 0xCF);
1105 }
1106 }
1107 }
1108
1109 if (use_thermistors) {
dedc6a78 1110 for (i = 11; i < data->innr; i++) {
1da177e4
LT		 1111 if (init >= init_in[i]) {
1112 /* The pin may already be used by thermal
1113 diodes */
1114 reg = pc87360_read_value(data, LD_TEMP,
1115 (i-11)/2, PC87365_REG_TEMP_STATUS);
1116 if (reg & 0x01) {
1117 dev_dbg(&client->dev, "Skipping "
1118 "temp%d, pin already in use "
1119 "by temp%d\n", i-7, (i-11)/2);
1120 continue;
1121 }
1122
1123 /* Forcibly enable thermistor channel */
1124 reg = pc87360_read_value(data, LD_IN, i,
1125 PC87365_REG_IN_STATUS);
1126 if (!(reg & 0x01)) {
1127 dev_dbg(&client->dev, "Forcibly "
1128 "enabling temp%d\n", i-7);
1129 pc87360_write_value(data, LD_IN, i,
1130 PC87365_REG_TEMP_STATUS,
1131 (reg & 0x60) | 0x8F);
1132 }
1133 }
1134 }
1135 }
1136
1137 if (data->innr) {
1138 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1139 PC87365_REG_IN_CONFIG);
1140 if (reg & 0x01) {
1141 dev_dbg(&client->dev, "Forcibly "
1142 "enabling monitoring (VLM)\n");
1143 pc87360_write_value(data, LD_IN, NO_BANK,
1144 PC87365_REG_IN_CONFIG,
1145 reg & 0xFE);
1146 }
1147 }
1148
1149 if (data->tempnr) {
1150 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1151 PC87365_REG_TEMP_CONFIG);
1152 if (reg & 0x01) {
1153 dev_dbg(&client->dev, "Forcibly enabling "
1154 "monitoring (TMS)\n");
1155 pc87360_write_value(data, LD_TEMP, NO_BANK,
1156 PC87365_REG_TEMP_CONFIG,
1157 reg & 0xFE);
1158 }
1159
1160 if (init >= 2) {
1161 /* Chip config as documented by National Semi. */
1162 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1163 /* We voluntarily omit the bank here, in case the
1164 sequence itself matters. It shouldn't be a problem,
1165 since nobody else is supposed to access the
1166 device at that point. */
1167 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1168 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1169 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1170 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1171 }
1172 }
1173}
1174
1175static void pc87360_autodiv(struct i2c_client *client, int nr)
1176{
1177 struct pc87360_data *data = i2c_get_clientdata(client);
1178 u8 old_min = data->fan_min[nr];
1179
1180 /* Increase clock divider if needed and possible */
1181 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1182 || (data->fan[nr] >= 224)) { /* next to overflow */
1183 if ((data->fan_status[nr] & 0x60) != 0x60) {
1184 data->fan_status[nr] += 0x20;
1185 data->fan_min[nr] >>= 1;
1186 data->fan[nr] >>= 1;
1187 dev_dbg(&client->dev, "Increasing "
1188 "clock divider to %d for fan %d\n",
1189 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1190 }
1191 } else {
1192 /* Decrease clock divider if possible */
1193 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1194 && data->fan[nr] < 85 /* bad accuracy */
1195 && (data->fan_status[nr] & 0x60) != 0x00) {
1196 data->fan_status[nr] -= 0x20;
1197 data->fan_min[nr] <<= 1;
1198 data->fan[nr] <<= 1;
1199 dev_dbg(&client->dev, "Decreasing "
1200 "clock divider to %d for fan %d\n",
1201 FAN_DIV_FROM_REG(data->fan_status[nr]),
1202 nr+1);
1203 }
1204 }
1205
1206 /* Write new fan min if it changed */
1207 if (old_min != data->fan_min[nr]) {
1208 pc87360_write_value(data, LD_FAN, NO_BANK,
1209 PC87360_REG_FAN_MIN(nr),
1210 data->fan_min[nr]);
1211 }
1212}
1213
1214static struct pc87360_data *pc87360_update_device(struct device *dev)
1215{
1216 struct i2c_client *client = to_i2c_client(dev);
1217 struct pc87360_data *data = i2c_get_clientdata(client);
1218 u8 i;
1219
9a61bf63 1220 mutex_lock(&data->update_lock);
1da177e4
LT		 1221
1222 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1223 dev_dbg(&client->dev, "Data update\n");
1224
1225 /* Fans */
1226 for (i = 0; i < data->fannr; i++) {
1227 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1228 data->fan_status[i] =
1229 pc87360_read_value(data, LD_FAN,
1230 NO_BANK, PC87360_REG_FAN_STATUS(i));
1231 data->fan[i] = pc87360_read_value(data, LD_FAN,
1232 NO_BANK, PC87360_REG_FAN(i));
1233 data->fan_min[i] = pc87360_read_value(data,
1234 LD_FAN, NO_BANK,
1235 PC87360_REG_FAN_MIN(i));
1236 /* Change clock divider if needed */
1237 pc87360_autodiv(client, i);
1238 /* Clear bits and write new divider */
1239 pc87360_write_value(data, LD_FAN, NO_BANK,
1240 PC87360_REG_FAN_STATUS(i),
1241 data->fan_status[i]);
1242 }
1243 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1244 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1245 NO_BANK, PC87360_REG_PWM(i));
1246 }
1247
1248 /* Voltages */
1249 for (i = 0; i < data->innr; i++) {
1250 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1251 PC87365_REG_IN_STATUS);
1252 /* Clear bits */
1253 pc87360_write_value(data, LD_IN, i,
1254 PC87365_REG_IN_STATUS,
1255 data->in_status[i]);
1256 if ((data->in_status[i] & 0x81) == 0x81) {
1257 data->in[i] = pc87360_read_value(data, LD_IN,
1258 i, PC87365_REG_IN);
1259 }
1260 if (data->in_status[i] & 0x01) {
1261 data->in_min[i] = pc87360_read_value(data,
1262 LD_IN, i,
1263 PC87365_REG_IN_MIN);
1264 data->in_max[i] = pc87360_read_value(data,
1265 LD_IN, i,
1266 PC87365_REG_IN_MAX);
1267 if (i >= 11)
1268 data->in_crit[i-11] =
1269 pc87360_read_value(data, LD_IN,
1270 i, PC87365_REG_TEMP_CRIT);
1271 }
1272 }
1273 if (data->innr) {
1274 data->in_alarms = pc87360_read_value(data, LD_IN,
1275 NO_BANK, PC87365_REG_IN_ALARMS1)
1276 | ((pc87360_read_value(data, LD_IN,
1277 NO_BANK, PC87365_REG_IN_ALARMS2)
1278 & 0x07) << 8);
1279 data->vid = (data->vid_conf & 0xE0) ?
1280 pc87360_read_value(data, LD_IN,
1281 NO_BANK, PC87365_REG_VID) : 0x1F;
1282 }
1283
1284 /* Temperatures */
1285 for (i = 0; i < data->tempnr; i++) {
1286 data->temp_status[i] = pc87360_read_value(data,
1287 LD_TEMP, i,
1288 PC87365_REG_TEMP_STATUS);
1289 /* Clear bits */
1290 pc87360_write_value(data, LD_TEMP, i,
1291 PC87365_REG_TEMP_STATUS,
1292 data->temp_status[i]);
1293 if ((data->temp_status[i] & 0x81) == 0x81) {
1294 data->temp[i] = pc87360_read_value(data,
1295 LD_TEMP, i,
1296 PC87365_REG_TEMP);
1297 }
1298 if (data->temp_status[i] & 0x01) {
1299 data->temp_min[i] = pc87360_read_value(data,
1300 LD_TEMP, i,
1301 PC87365_REG_TEMP_MIN);
1302 data->temp_max[i] = pc87360_read_value(data,
1303 LD_TEMP, i,
1304 PC87365_REG_TEMP_MAX);
1305 data->temp_crit[i] = pc87360_read_value(data,
1306 LD_TEMP, i,
1307 PC87365_REG_TEMP_CRIT);
1308 }
1309 }
1310 if (data->tempnr) {
1311 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1312 NO_BANK, PC87365_REG_TEMP_ALARMS)
1313 & 0x3F;
1314 }
1315
1316 data->last_updated = jiffies;
1317 data->valid = 1;
1318 }
1319
9a61bf63 1320 mutex_unlock(&data->update_lock);
1da177e4
LT		 1321
1322 return data;
1323}
1324
1325static int __init pc87360_init(void)
1326{
1327 int i;
1328
1329 if (pc87360_find(0x2e, &devid, extra_isa)
1330 && pc87360_find(0x4e, &devid, extra_isa)) {
1331 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1332 "module not inserted.\n");
1333 return -ENODEV;
1334 }
1335
1336 /* Arbitrarily pick one of the addresses */
1337 for (i = 0; i < 3; i++) {
1338 if (extra_isa[i] != 0x0000) {
2d8672c5 1339 address = extra_isa[i];
1da177e4
LT		 1340 break;
1341 }
1342 }
1343
2d8672c5 1344 if (address == 0x0000) {
1da177e4
LT		 1345 printk(KERN_WARNING "pc87360: No active logical device, "
1346 "module not inserted.\n");
1347 return -ENODEV;
1348 }
1349
fde09509 1350 return i2c_isa_add_driver(&pc87360_driver);
1da177e4
LT		 1351}
1352
1353static void __exit pc87360_exit(void)
1354{
fde09509 1355 i2c_isa_del_driver(&pc87360_driver);
1da177e4
LT		 1356}
1357
1358
1359MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1360MODULE_DESCRIPTION("PC8736x hardware monitor");
1361MODULE_LICENSE("GPL");
1362
1363module_init(pc87360_init);
1364module_exit(pc87360_exit);
Linux kernel - Deliverables
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