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[PATCH] hwmon: (1/3) pc87360 driver update
[net-next-2.6.git] / drivers / hwmon / pc87360.c
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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>
1da177e4
LT		 46#include <asm/io.h>
47
1da177e4 48static u8 devid;
2d8672c5
JD		 49static unsigned short address;
50static unsigned short extra_isa[3];
1da177e4
LT		 51static u8 confreg[4];
52
53enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
1da177e4
LT		 54
55static int init = 1;
56module_param(init, int, 0);
57MODULE_PARM_DESC(init,
58 "Chip initialization level:\n"
59 " 0: None\n"
60 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
61 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
62 " 3: Forcibly enable all voltage and temperature channels, including in9");
63
64/*
65 * Super-I/O registers and operations
66 */
67
68#define DEV 0x07 /* Register: Logical device select */
69#define DEVID 0x20 /* Register: Device ID */
70#define ACT 0x30 /* Register: Device activation */
71#define BASE 0x60 /* Register: Base address */
72
73#define FSCM 0x09 /* Logical device: fans */
74#define VLM 0x0d /* Logical device: voltages */
75#define TMS 0x0e /* Logical device: temperatures */
76static const u8 logdev[3] = { FSCM, VLM, TMS };
77
78#define LD_FAN 0
79#define LD_IN 1
80#define LD_TEMP 2
81
82static inline void superio_outb(int sioaddr, int reg, int val)
83{
84 outb(reg, sioaddr);
85 outb(val, sioaddr+1);
86}
87
88static inline int superio_inb(int sioaddr, int reg)
89{
90 outb(reg, sioaddr);
91 return inb(sioaddr+1);
92}
93
94static inline void superio_exit(int sioaddr)
95{
96 outb(0x02, sioaddr);
97 outb(0x02, sioaddr+1);
98}
99
100/*
101 * Logical devices
102 */
103
104#define PC87360_EXTENT 0x10
105#define PC87365_REG_BANK 0x09
106#define NO_BANK 0xff
107
108/*
109 * Fan registers and conversions
110 */
111
112/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
113#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
114#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
115#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
116#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
117#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
118
119#define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
120 480000 / ((val)*(div)))
121#define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
122 480000 / ((val)*(div)))
123#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
124#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
125
126#define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
127#define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
128#define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
129
130#define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
131static inline u8 PWM_TO_REG(int val, int inv)
132{
133 if (inv)
134 val = 255 - val;
135 if (val < 0)
136 return 0;
137 if (val > 255)
138 return 255;
139 return val;
140}
141
142/*
143 * Voltage registers and conversions
144 */
145
146#define PC87365_REG_IN_CONVRATE 0x07
147#define PC87365_REG_IN_CONFIG 0x08
148#define PC87365_REG_IN 0x0B
149#define PC87365_REG_IN_MIN 0x0D
150#define PC87365_REG_IN_MAX 0x0C
151#define PC87365_REG_IN_STATUS 0x0A
152#define PC87365_REG_IN_ALARMS1 0x00
153#define PC87365_REG_IN_ALARMS2 0x01
154#define PC87365_REG_VID 0x06
155
156#define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
157#define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
158 (val)*256 >= (ref)*255 ? 255: \
159 ((val) * 256 + (ref)/2) / (ref))
160
161/*
162 * Temperature registers and conversions
163 */
164
165#define PC87365_REG_TEMP_CONFIG 0x08
166#define PC87365_REG_TEMP 0x0B
167#define PC87365_REG_TEMP_MIN 0x0D
168#define PC87365_REG_TEMP_MAX 0x0C
169#define PC87365_REG_TEMP_CRIT 0x0E
170#define PC87365_REG_TEMP_STATUS 0x0A
171#define PC87365_REG_TEMP_ALARMS 0x00
172
173#define TEMP_FROM_REG(val) ((val) * 1000)
174#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
175 (val) > 127000 ? 127 : \
176 (val) < 0 ? ((val) - 500) / 1000 : \
177 ((val) + 500) / 1000)
178
179/*
180 * Client data (each client gets its own)
181 */
182
183struct pc87360_data {
184 struct i2c_client client;
943b0830 185 struct class_device *class_dev;
1da177e4
LT		 186 struct semaphore lock;
187 struct semaphore update_lock;
188 char valid; /* !=0 if following fields are valid */
189 unsigned long last_updated; /* In jiffies */
190
191 int address[3];
192
193 u8 fannr, innr, tempnr;
194
195 u8 fan[3]; /* Register value */
196 u8 fan_min[3]; /* Register value */
197 u8 fan_status[3]; /* Register value */
198 u8 pwm[3]; /* Register value */
199 u16 fan_conf; /* Configuration register values, combined */
200
201 u16 in_vref; /* 1 mV/bit */
202 u8 in[14]; /* Register value */
203 u8 in_min[14]; /* Register value */
204 u8 in_max[14]; /* Register value */
205 u8 in_crit[3]; /* Register value */
206 u8 in_status[14]; /* Register value */
207 u16 in_alarms; /* Register values, combined, masked */
208 u8 vid_conf; /* Configuration register value */
209 u8 vrm;
210 u8 vid; /* Register value */
211
212 s8 temp[3]; /* Register value */
213 s8 temp_min[3]; /* Register value */
214 s8 temp_max[3]; /* Register value */
215 s8 temp_crit[3]; /* Register value */
216 u8 temp_status[3]; /* Register value */
217 u8 temp_alarms; /* Register value, masked */
218};
219
220/*
221 * Functions declaration
222 */
223
2d8672c5 224static int pc87360_detect(struct i2c_adapter *adapter);
1da177e4
LT		 225static int pc87360_detach_client(struct i2c_client *client);
226
227static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
228 u8 reg);
229static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
230 u8 reg, u8 value);
231static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
232static struct pc87360_data *pc87360_update_device(struct device *dev);
233
234/*
235 * Driver data (common to all clients)
236 */
237
238static struct i2c_driver pc87360_driver = {
239 .owner = THIS_MODULE,
240 .name = "pc87360",
2d8672c5 241 .attach_adapter = pc87360_detect,
1da177e4
LT		 242 .detach_client = pc87360_detach_client,
243};
244
245/*
246 * Sysfs stuff
247 */
248
f0986bd8 249static ssize_t _set_fan_min(struct device *dev, const char *buf,
1da177e4
LT		 250 size_t count, int nr)
251{
252 struct i2c_client *client = to_i2c_client(dev);
253 struct pc87360_data *data = i2c_get_clientdata(client);
254 long fan_min = simple_strtol(buf, NULL, 10);
255
256 down(&data->update_lock);
257 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[nr]));
258
259 /* If it wouldn't fit, change clock divisor */
260 while (fan_min > 255
261 && (data->fan_status[nr] & 0x60) != 0x60) {
262 fan_min >>= 1;
263 data->fan[nr] >>= 1;
264 data->fan_status[nr] += 0x20;
265 }
266 data->fan_min[nr] = fan_min > 255 ? 255 : fan_min;
267 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr),
268 data->fan_min[nr]);
269
270 /* Write new divider, preserve alarm bits */
271 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(nr),
272 data->fan_status[nr] & 0xF9);
273 up(&data->update_lock);
274
275 return count;
276}
277
f0986bd8
JC		 278static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
279{
280 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
281 struct pc87360_data *data = pc87360_update_device(dev);
282 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index-1],
283 FAN_DIV_FROM_REG(data->fan_status[attr->index-1])));
284}
285static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
286{
287 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
288 struct pc87360_data *data = pc87360_update_device(dev);
289 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index-1],
290 FAN_DIV_FROM_REG(data->fan_status[attr->index-1])));
291}
292static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
293{
294 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
295 struct pc87360_data *data = pc87360_update_device(dev);
296 return sprintf(buf, "%u\n",
297 FAN_DIV_FROM_REG(data->fan_status[attr->index-1]));
298}
299static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
300{
301 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
302 struct pc87360_data *data = pc87360_update_device(dev);
303 return sprintf(buf, "%u\n",
304 FAN_STATUS_FROM_REG(data->fan_status[attr->index-1]));
305}
306static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
307 size_t count)
308{
309 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
310 return _set_fan_min(dev, buf, count, attr->index-1);
311}
312
1da177e4 313#define show_and_set_fan(offset) \
f0986bd8
JC		 314static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
315 show_fan_input, NULL, offset); \
316static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
317 show_fan_min, set_fan_min, offset); \
318static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
319 show_fan_div, NULL, offset); \
320static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
321 show_fan_status, NULL, offset);
1da177e4
LT		 322show_and_set_fan(1)
323show_and_set_fan(2)
324show_and_set_fan(3)
325
f0986bd8
JC		 326static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
327{
328 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
329 struct pc87360_data *data = pc87360_update_device(dev);
330 return sprintf(buf, "%u\n",
331 PWM_FROM_REG(data->pwm[attr->index-1],
332 FAN_CONFIG_INVERT(data->fan_conf,
333 attr->index-1)));
334}
335static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
336 size_t count)
337{
338 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
339 struct i2c_client *client = to_i2c_client(dev);
340 struct pc87360_data *data = i2c_get_clientdata(client);
341 long val = simple_strtol(buf, NULL, 10);
342
343 down(&data->update_lock);
344 data->pwm[attr->index-1] = PWM_TO_REG(val,
345 FAN_CONFIG_INVERT(data->fan_conf, attr->index-1));
346 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index-1),
347 data->pwm[attr->index-1]);
348 up(&data->update_lock);
349 return count;
350}
351
1da177e4 352#define show_and_set_pwm(offset) \
f0986bd8
JC		 353static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
354 show_pwm, set_pwm, offset);
1da177e4
LT		 355show_and_set_pwm(1)
356show_and_set_pwm(2)
357show_and_set_pwm(3)
358
f0986bd8
JC		 359static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
360{
361 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
362 struct pc87360_data *data = pc87360_update_device(dev);
363 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
364 data->in_vref));
365}
366static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
367{
368 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
369 struct pc87360_data *data = pc87360_update_device(dev);
370 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
371 data->in_vref));
372}
373static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
374{
375 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
376 struct pc87360_data *data = pc87360_update_device(dev);
377 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
378 data->in_vref));
379}
380static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
381{
382 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
383 struct pc87360_data *data = pc87360_update_device(dev);
384 return sprintf(buf, "%u\n", data->in_status[attr->index]);
385}
386static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
387 size_t count)
388{
389 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
390 struct i2c_client *client = to_i2c_client(dev);
391 struct pc87360_data *data = i2c_get_clientdata(client);
392 long val = simple_strtol(buf, NULL, 10);
393
394 down(&data->update_lock);
395 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
396 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
397 data->in_min[attr->index]);
398 up(&data->update_lock);
399 return count;
400}
401static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
402 size_t count)
403{
404 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
405 struct i2c_client *client = to_i2c_client(dev);
406 struct pc87360_data *data = i2c_get_clientdata(client);
407 long val = simple_strtol(buf, NULL, 10);
408
409 down(&data->update_lock);
410 data->in_max[attr->index] = IN_TO_REG(val,
411 data->in_vref);
412 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
413 data->in_max[attr->index]);
414 up(&data->update_lock);
415 return count;
416}
417
1da177e4 418#define show_and_set_in(offset) \
f0986bd8
JC		 419static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
420 show_in_input, NULL, offset); \
421static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
422 show_in_min, set_in_min, offset); \
423static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
424 show_in_max, set_in_max, offset); \
425static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
426 show_in_status, NULL, offset);
1da177e4
LT		 427show_and_set_in(0)
428show_and_set_in(1)
429show_and_set_in(2)
430show_and_set_in(3)
431show_and_set_in(4)
432show_and_set_in(5)
433show_and_set_in(6)
434show_and_set_in(7)
435show_and_set_in(8)
436show_and_set_in(9)
437show_and_set_in(10)
438
f0986bd8
JC		 439static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
440{
441 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
442 struct pc87360_data *data = pc87360_update_device(dev);
443 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index+7],
444 data->in_vref));
445}
446static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
447{
448 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
449 struct pc87360_data *data = pc87360_update_device(dev);
450 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index+7],
451 data->in_vref));
452}
453static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
454{
455 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
456 struct pc87360_data *data = pc87360_update_device(dev);
457 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index+7],
458 data->in_vref));
459}
460static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
461{
462 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
463 struct pc87360_data *data = pc87360_update_device(dev);
464 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-4],
465 data->in_vref));
466}
467static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
468{
469 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
470 struct pc87360_data *data = pc87360_update_device(dev);
471 return sprintf(buf, "%u\n", data->in_status[attr->index+7]);
472}
473static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
474 size_t count)
475{
476 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
477 struct i2c_client *client = to_i2c_client(dev);
478 struct pc87360_data *data = i2c_get_clientdata(client);
479 long val = simple_strtol(buf, NULL, 10);
480
481 down(&data->update_lock);
482 data->in_min[attr->index+7] = IN_TO_REG(val, data->in_vref);
483 pc87360_write_value(data, LD_IN, attr->index+7, PC87365_REG_TEMP_MIN,
484 data->in_min[attr->index+7]);
485 up(&data->update_lock);
486 return count;
487}
488static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
489 size_t count)
490{
491 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
492 struct i2c_client *client = to_i2c_client(dev);
493 struct pc87360_data *data = i2c_get_clientdata(client);
494 long val = simple_strtol(buf, NULL, 10);
495
496 down(&data->update_lock);
497 data->in_max[attr->index+7] = IN_TO_REG(val, data->in_vref);
498 pc87360_write_value(data, LD_IN, attr->index+7, PC87365_REG_TEMP_MAX,
499 data->in_max[attr->index+7]);
500 up(&data->update_lock);
501 return count;
502}
503static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
504 size_t count)
505{
506 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
507 struct i2c_client *client = to_i2c_client(dev);
508 struct pc87360_data *data = i2c_get_clientdata(client);
509 long val = simple_strtol(buf, NULL, 10);
510
511 down(&data->update_lock);
512 data->in_crit[attr->index-4] = IN_TO_REG(val, data->in_vref);
513 pc87360_write_value(data, LD_IN, attr->index+7, PC87365_REG_TEMP_CRIT,
514 data->in_crit[attr->index-4]);
515 up(&data->update_lock);
516 return count;
517}
518
1da177e4 519#define show_and_set_therm(offset) \
f0986bd8
JC		 520static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
521 show_therm_input, NULL, offset); \
522static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
523 show_therm_min, set_therm_min, offset); \
524static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
525 show_therm_max, set_therm_max, offset); \
526static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
527 show_therm_crit, set_therm_crit, offset); \
528static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
529 show_therm_status, NULL, offset);
1da177e4
LT		 530show_and_set_therm(4)
531show_and_set_therm(5)
532show_and_set_therm(6)
533
a5099cfc 534static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 535{
536 struct pc87360_data *data = pc87360_update_device(dev);
537 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
538}
539static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
540
a5099cfc 541static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 542{
543 struct pc87360_data *data = pc87360_update_device(dev);
544 return sprintf(buf, "%u\n", data->vrm);
545}
a5099cfc 546static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1da177e4
LT		 547{
548 struct i2c_client *client = to_i2c_client(dev);
549 struct pc87360_data *data = i2c_get_clientdata(client);
550 data->vrm = simple_strtoul(buf, NULL, 10);
551 return count;
552}
553static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
554
a5099cfc 555static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 556{
557 struct pc87360_data *data = pc87360_update_device(dev);
558 return sprintf(buf, "%u\n", data->in_alarms);
559}
560static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
561
f0986bd8
JC		 562static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
563{
564 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
565 struct pc87360_data *data = pc87360_update_device(dev);
566 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index-1]));
567}
568static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
569{
570 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
571 struct pc87360_data *data = pc87360_update_device(dev);
572 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index-1]));
573}
574static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
575{
576 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
577 struct pc87360_data *data = pc87360_update_device(dev);
578 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index-1]));
579}
580static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
581{
582 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
583 struct pc87360_data *data = pc87360_update_device(dev);
584 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index-1]));
585}
586static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
587{
588 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
589 struct pc87360_data *data = pc87360_update_device(dev);
590 return sprintf(buf, "%d\n", data->temp_status[attr->index-1]);
591}
592static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
593 size_t count)
594{
595 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
596 struct i2c_client *client = to_i2c_client(dev);
597 struct pc87360_data *data = i2c_get_clientdata(client);
598 long val = simple_strtol(buf, NULL, 10);
599
600 down(&data->update_lock);
601 data->temp_min[attr->index-1] = TEMP_TO_REG(val);
602 pc87360_write_value(data, LD_TEMP, attr->index-1, PC87365_REG_TEMP_MIN,
603 data->temp_min[attr->index-1]);
604 up(&data->update_lock);
605 return count;
606}
607static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
608 size_t count)
609{
610 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
611 struct i2c_client *client = to_i2c_client(dev);
612 struct pc87360_data *data = i2c_get_clientdata(client);
613 long val = simple_strtol(buf, NULL, 10);
614
615 down(&data->update_lock);
616 data->temp_max[attr->index-1] = TEMP_TO_REG(val);
617 pc87360_write_value(data, LD_TEMP, attr->index-1, PC87365_REG_TEMP_MAX,
618 data->temp_max[attr->index-1]);
619 up(&data->update_lock);
620 return count;
621}
622static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
623 size_t count)
624{
625 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
626 struct i2c_client *client = to_i2c_client(dev);
627 struct pc87360_data *data = i2c_get_clientdata(client);
628 long val = simple_strtol(buf, NULL, 10);
629
630 down(&data->update_lock);
631 data->temp_crit[attr->index-1] = TEMP_TO_REG(val);
632 pc87360_write_value(data, LD_TEMP, attr->index-1, PC87365_REG_TEMP_CRIT,
633 data->temp_crit[attr->index-1]);
634 up(&data->update_lock);
635 return count;
636}
637
1da177e4 638#define show_and_set_temp(offset) \
f0986bd8
JC		 639static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
640 show_temp_input, NULL, offset); \
641static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
642 show_temp_min, set_temp_min, offset); \
643static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
644 show_temp_max, set_temp_max, offset); \
645static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
646 show_temp_crit, set_temp_crit, offset); \
647static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
648 show_temp_status, NULL, offset);
1da177e4
LT		 649show_and_set_temp(1)
650show_and_set_temp(2)
651show_and_set_temp(3)
652
a5099cfc 653static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 654{
655 struct pc87360_data *data = pc87360_update_device(dev);
656 return sprintf(buf, "%u\n", data->temp_alarms);
657}
658static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
659
660/*
661 * Device detection, registration and update
662 */
663
e6cfb3ad 664static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1da177e4
LT		 665{
666 u16 val;
667 int i;
668 int nrdev; /* logical device count */
669
670 /* No superio_enter */
671
672 /* Identify device */
673 val = superio_inb(sioaddr, DEVID);
674 switch (val) {
675 case 0xE1: /* PC87360 */
676 case 0xE8: /* PC87363 */
677 case 0xE4: /* PC87364 */
678 nrdev = 1;
679 break;
680 case 0xE5: /* PC87365 */
681 case 0xE9: /* PC87366 */
682 nrdev = 3;
683 break;
684 default:
685 superio_exit(sioaddr);
686 return -ENODEV;
687 }
688 /* Remember the device id */
689 *devid = val;
690
691 for (i = 0; i < nrdev; i++) {
692 /* select logical device */
693 superio_outb(sioaddr, DEV, logdev[i]);
694
695 val = superio_inb(sioaddr, ACT);
696 if (!(val & 0x01)) {
697 printk(KERN_INFO "pc87360: Device 0x%02x not "
698 "activated\n", logdev[i]);
699 continue;
700 }
701
702 val = (superio_inb(sioaddr, BASE) << 8)
703 | superio_inb(sioaddr, BASE + 1);
704 if (!val) {
705 printk(KERN_INFO "pc87360: Base address not set for "
706 "device 0x%02x\n", logdev[i]);
707 continue;
708 }
709
2d8672c5 710 addresses[i] = val;
1da177e4
LT		 711
712 if (i==0) { /* Fans */
713 confreg[0] = superio_inb(sioaddr, 0xF0);
714 confreg[1] = superio_inb(sioaddr, 0xF1);
715
716#ifdef DEBUG
717 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
718 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
719 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
720 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
721 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
722 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
723 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
724 "ctrl=%d inv=%d\n", confreg[1]&1,
725 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
726#endif
727 } else if (i==1) { /* Voltages */
728 /* Are we using thermistors? */
729 if (*devid == 0xE9) { /* PC87366 */
730 /* These registers are not logical-device
731 specific, just that we won't need them if
732 we don't use the VLM device */
733 confreg[2] = superio_inb(sioaddr, 0x2B);
734 confreg[3] = superio_inb(sioaddr, 0x25);
735
736 if (confreg[2] & 0x40) {
737 printk(KERN_INFO "pc87360: Using "
738 "thermistors for temperature "
739 "monitoring\n");
740 }
741 if (confreg[3] & 0xE0) {
742 printk(KERN_INFO "pc87360: VID "
743 "inputs routed (mode %u)\n",
744 confreg[3] >> 5);
745 }
746 }
747 }
748 }
749
750 superio_exit(sioaddr);
751 return 0;
752}
753
2d8672c5 754static int pc87360_detect(struct i2c_adapter *adapter)
1da177e4
LT		 755{
756 int i;
757 struct i2c_client *new_client;
758 struct pc87360_data *data;
759 int err = 0;
760 const char *name = "pc87360";
761 int use_thermistors = 0;
762
1da177e4
LT		 763 if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
764 return -ENOMEM;
765 memset(data, 0x00, sizeof(struct pc87360_data));
766
767 new_client = &data->client;
768 i2c_set_clientdata(new_client, data);
769 new_client->addr = address;
770 init_MUTEX(&data->lock);
771 new_client->adapter = adapter;
772 new_client->driver = &pc87360_driver;
773 new_client->flags = 0;
774
775 data->fannr = 2;
776 data->innr = 0;
777 data->tempnr = 0;
778
779 switch (devid) {
780 case 0xe8:
781 name = "pc87363";
782 break;
783 case 0xe4:
784 name = "pc87364";
785 data->fannr = 3;
786 break;
787 case 0xe5:
788 name = "pc87365";
789 data->fannr = extra_isa[0] ? 3 : 0;
790 data->innr = extra_isa[1] ? 11 : 0;
791 data->tempnr = extra_isa[2] ? 2 : 0;
792 break;
793 case 0xe9:
794 name = "pc87366";
795 data->fannr = extra_isa[0] ? 3 : 0;
796 data->innr = extra_isa[1] ? 14 : 0;
797 data->tempnr = extra_isa[2] ? 3 : 0;
798 break;
799 }
800
801 strcpy(new_client->name, name);
802 data->valid = 0;
803 init_MUTEX(&data->update_lock);
804
805 for (i = 0; i < 3; i++) {
806 if (((data->address[i] = extra_isa[i]))
807 && !request_region(extra_isa[i], PC87360_EXTENT,
808 pc87360_driver.name)) {
809 dev_err(&new_client->dev, "Region 0x%x-0x%x already "
810 "in use!\n", extra_isa[i],
811 extra_isa[i]+PC87360_EXTENT-1);
812 for (i--; i >= 0; i--)
813 release_region(extra_isa[i], PC87360_EXTENT);
814 err = -EBUSY;
815 goto ERROR1;
816 }
817 }
818
819 /* Retrieve the fans configuration from Super-I/O space */
820 if (data->fannr)
821 data->fan_conf = confreg[0] | (confreg[1] << 8);
822
823 if ((err = i2c_attach_client(new_client)))
824 goto ERROR2;
825
826 /* Use the correct reference voltage
827 Unless both the VLM and the TMS logical devices agree to
828 use an external Vref, the internal one is used. */
829 if (data->innr) {
830 i = pc87360_read_value(data, LD_IN, NO_BANK,
831 PC87365_REG_IN_CONFIG);
832 if (data->tempnr) {
833 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
834 PC87365_REG_TEMP_CONFIG);
835 }
836 data->in_vref = (i&0x02) ? 3025 : 2966;
837 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
838 (i&0x02) ? "external" : "internal");
839
840 data->vid_conf = confreg[3];
841 data->vrm = 90;
842 }
843
844 /* Fan clock dividers may be needed before any data is read */
845 for (i = 0; i < data->fannr; i++) {
846 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
847 data->fan_status[i] = pc87360_read_value(data,
848 LD_FAN, NO_BANK,
849 PC87360_REG_FAN_STATUS(i));
850 }
851
852 if (init > 0) {
853 if (devid == 0xe9 && data->address[1]) /* PC87366 */
854 use_thermistors = confreg[2] & 0x40;
855
856 pc87360_init_client(new_client, use_thermistors);
857 }
858
859 /* Register sysfs hooks */
943b0830
MH		 860 data->class_dev = hwmon_device_register(&new_client->dev);
861 if (IS_ERR(data->class_dev)) {
862 err = PTR_ERR(data->class_dev);
863 goto ERROR3;
864 }
865
1da177e4 866 if (data->innr) {
f0986bd8
JC		 867 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
868 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
869 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
870 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
871 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
872 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
873 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
874 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
875 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
876 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
877 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
878 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
879 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
880 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
881 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
882 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
883 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
884 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
885 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
886 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
887 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
888 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
889 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
890 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
891 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
892 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
893 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
894 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
895 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
896 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
897 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
898 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
899 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
900 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr);
901 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr);
902 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr);
903 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr);
904 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr);
905 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr);
906 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr);
907 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr);
908 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr);
909 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr);
910 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr);
1da177e4
LT		 911
912 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
913 device_create_file(&new_client->dev, &dev_attr_vrm);
914 device_create_file(&new_client->dev, &dev_attr_alarms_in);
915 }
916
917 if (data->tempnr) {
f0986bd8
JC		 918 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
919 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
920 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
921 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
922 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
923 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
924 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
925 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
926 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr);
927 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr);
1da177e4
LT		 928
929 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
930 }
931 if (data->tempnr == 3) {
f0986bd8
JC		 932 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
933 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
934 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
935 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
936 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr);
1da177e4
LT		 937 }
938 if (data->innr == 14) {
f0986bd8
JC		 939 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr);
940 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr);
941 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr);
942 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr);
943 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr);
944 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr);
945 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr);
946 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr);
947 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr);
948 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr);
949 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr);
950 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr);
951 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr);
952 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr);
953 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr);
1da177e4
LT		 954 }
955
956 if (data->fannr) {
957 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
958 device_create_file(&new_client->dev,
f0986bd8 959 &sensor_dev_attr_fan1_input.dev_attr);
1da177e4 960 device_create_file(&new_client->dev,
f0986bd8 961 &sensor_dev_attr_fan1_min.dev_attr);
1da177e4 962 device_create_file(&new_client->dev,
f0986bd8 963 &sensor_dev_attr_fan1_div.dev_attr);
1da177e4 964 device_create_file(&new_client->dev,
f0986bd8 965 &sensor_dev_attr_fan1_status.dev_attr);
1da177e4
LT		 966 }
967
968 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
969 device_create_file(&new_client->dev,
f0986bd8 970 &sensor_dev_attr_fan2_input.dev_attr);
1da177e4 971 device_create_file(&new_client->dev,
f0986bd8 972 &sensor_dev_attr_fan2_min.dev_attr);
1da177e4 973 device_create_file(&new_client->dev,
f0986bd8 974 &sensor_dev_attr_fan2_div.dev_attr);
1da177e4 975 device_create_file(&new_client->dev,
f0986bd8 976 &sensor_dev_attr_fan2_status.dev_attr);
1da177e4
LT		 977 }
978
979 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
f0986bd8 980 device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr);
1da177e4 981 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
f0986bd8 982 device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr);
1da177e4
LT		 983 }
984 if (data->fannr == 3) {
985 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
986 device_create_file(&new_client->dev,
f0986bd8 987 &sensor_dev_attr_fan3_input.dev_attr);
1da177e4 988 device_create_file(&new_client->dev,
f0986bd8 989 &sensor_dev_attr_fan3_min.dev_attr);
1da177e4 990 device_create_file(&new_client->dev,
f0986bd8 991 &sensor_dev_attr_fan3_div.dev_attr);
1da177e4 992 device_create_file(&new_client->dev,
f0986bd8 993 &sensor_dev_attr_fan3_status.dev_attr);
1da177e4
LT		 994 }
995
996 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
f0986bd8 997 device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr);
1da177e4
LT		 998 }
999
1000 return 0;
1001
943b0830
MH		 1002ERROR3:
1003 i2c_detach_client(new_client);
1da177e4
LT		 1004ERROR2:
1005 for (i = 0; i < 3; i++) {
1006 if (data->address[i]) {
1007 release_region(data->address[i], PC87360_EXTENT);
1008 }
1009 }
1010ERROR1:
1011 kfree(data);
1012 return err;
1013}
1014
1015static int pc87360_detach_client(struct i2c_client *client)
1016{
1017 struct pc87360_data *data = i2c_get_clientdata(client);
1018 int i;
1019
943b0830
MH		 1020 hwmon_device_unregister(data->class_dev);
1021
7bef5594 1022 if ((i = i2c_detach_client(client)))
1da177e4 1023 return i;
1da177e4
LT		 1024
1025 for (i = 0; i < 3; i++) {
1026 if (data->address[i]) {
1027 release_region(data->address[i], PC87360_EXTENT);
1028 }
1029 }
1030 kfree(data);
1031
1032 return 0;
1033}
1034
1035/* ldi is the logical device index
1036 bank is for voltages and temperatures only */
1037static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1038 u8 reg)
1039{
1040 int res;
1041
1042 down(&(data->lock));
1043 if (bank != NO_BANK)
1044 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1045 res = inb_p(data->address[ldi] + reg);
1046 up(&(data->lock));
1047
1048 return res;
1049}
1050
1051static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1052 u8 reg, u8 value)
1053{
1054 down(&(data->lock));
1055 if (bank != NO_BANK)
1056 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1057 outb_p(value, data->address[ldi] + reg);
1058 up(&(data->lock));
1059}
1060
1061static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1062{
1063 struct pc87360_data *data = i2c_get_clientdata(client);
1064 int i, nr;
1065 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1066 const u8 init_temp[3] = { 2, 2, 1 };
1067 u8 reg;
1068
1069 if (init >= 2 && data->innr) {
1070 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1071 PC87365_REG_IN_CONVRATE);
368609c5 1072 dev_info(&client->dev, "VLM conversion set to "
1da177e4
LT		 1073 "1s period, 160us delay\n");
1074 pc87360_write_value(data, LD_IN, NO_BANK,
1075 PC87365_REG_IN_CONVRATE,
1076 (reg & 0xC0) | 0x11);
1077 }
1078
1079 nr = data->innr < 11 ? data->innr : 11;
1080 for (i=0; i<nr; i++) {
1081 if (init >= init_in[i]) {
1082 /* Forcibly enable voltage channel */
1083 reg = pc87360_read_value(data, LD_IN, i,
1084 PC87365_REG_IN_STATUS);
1085 if (!(reg & 0x01)) {
1086 dev_dbg(&client->dev, "Forcibly "
1087 "enabling in%d\n", i);
1088 pc87360_write_value(data, LD_IN, i,
1089 PC87365_REG_IN_STATUS,
1090 (reg & 0x68) | 0x87);
1091 }
1092 }
1093 }
1094
1095 /* We can't blindly trust the Super-I/O space configuration bit,
1096 most BIOS won't set it properly */
1097 for (i=11; i<data->innr; i++) {
1098 reg = pc87360_read_value(data, LD_IN, i,
1099 PC87365_REG_TEMP_STATUS);
1100 use_thermistors = use_thermistors || (reg & 0x01);
1101 }
1102
1103 i = use_thermistors ? 2 : 0;
1104 for (; i<data->tempnr; i++) {
1105 if (init >= init_temp[i]) {
1106 /* Forcibly enable temperature channel */
1107 reg = pc87360_read_value(data, LD_TEMP, i,
1108 PC87365_REG_TEMP_STATUS);
1109 if (!(reg & 0x01)) {
1110 dev_dbg(&client->dev, "Forcibly "
1111 "enabling temp%d\n", i+1);
1112 pc87360_write_value(data, LD_TEMP, i,
1113 PC87365_REG_TEMP_STATUS,
1114 0xCF);
1115 }
1116 }
1117 }
1118
1119 if (use_thermistors) {
1120 for (i=11; i<data->innr; i++) {
1121 if (init >= init_in[i]) {
1122 /* The pin may already be used by thermal
1123 diodes */
1124 reg = pc87360_read_value(data, LD_TEMP,
1125 (i-11)/2, PC87365_REG_TEMP_STATUS);
1126 if (reg & 0x01) {
1127 dev_dbg(&client->dev, "Skipping "
1128 "temp%d, pin already in use "
1129 "by temp%d\n", i-7, (i-11)/2);
1130 continue;
1131 }
1132
1133 /* Forcibly enable thermistor channel */
1134 reg = pc87360_read_value(data, LD_IN, i,
1135 PC87365_REG_IN_STATUS);
1136 if (!(reg & 0x01)) {
1137 dev_dbg(&client->dev, "Forcibly "
1138 "enabling temp%d\n", i-7);
1139 pc87360_write_value(data, LD_IN, i,
1140 PC87365_REG_TEMP_STATUS,
1141 (reg & 0x60) | 0x8F);
1142 }
1143 }
1144 }
1145 }
1146
1147 if (data->innr) {
1148 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1149 PC87365_REG_IN_CONFIG);
1150 if (reg & 0x01) {
1151 dev_dbg(&client->dev, "Forcibly "
1152 "enabling monitoring (VLM)\n");
1153 pc87360_write_value(data, LD_IN, NO_BANK,
1154 PC87365_REG_IN_CONFIG,
1155 reg & 0xFE);
1156 }
1157 }
1158
1159 if (data->tempnr) {
1160 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1161 PC87365_REG_TEMP_CONFIG);
1162 if (reg & 0x01) {
1163 dev_dbg(&client->dev, "Forcibly enabling "
1164 "monitoring (TMS)\n");
1165 pc87360_write_value(data, LD_TEMP, NO_BANK,
1166 PC87365_REG_TEMP_CONFIG,
1167 reg & 0xFE);
1168 }
1169
1170 if (init >= 2) {
1171 /* Chip config as documented by National Semi. */
1172 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1173 /* We voluntarily omit the bank here, in case the
1174 sequence itself matters. It shouldn't be a problem,
1175 since nobody else is supposed to access the
1176 device at that point. */
1177 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1178 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1179 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1180 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1181 }
1182 }
1183}
1184
1185static void pc87360_autodiv(struct i2c_client *client, int nr)
1186{
1187 struct pc87360_data *data = i2c_get_clientdata(client);
1188 u8 old_min = data->fan_min[nr];
1189
1190 /* Increase clock divider if needed and possible */
1191 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1192 || (data->fan[nr] >= 224)) { /* next to overflow */
1193 if ((data->fan_status[nr] & 0x60) != 0x60) {
1194 data->fan_status[nr] += 0x20;
1195 data->fan_min[nr] >>= 1;
1196 data->fan[nr] >>= 1;
1197 dev_dbg(&client->dev, "Increasing "
1198 "clock divider to %d for fan %d\n",
1199 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1200 }
1201 } else {
1202 /* Decrease clock divider if possible */
1203 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1204 && data->fan[nr] < 85 /* bad accuracy */
1205 && (data->fan_status[nr] & 0x60) != 0x00) {
1206 data->fan_status[nr] -= 0x20;
1207 data->fan_min[nr] <<= 1;
1208 data->fan[nr] <<= 1;
1209 dev_dbg(&client->dev, "Decreasing "
1210 "clock divider to %d for fan %d\n",
1211 FAN_DIV_FROM_REG(data->fan_status[nr]),
1212 nr+1);
1213 }
1214 }
1215
1216 /* Write new fan min if it changed */
1217 if (old_min != data->fan_min[nr]) {
1218 pc87360_write_value(data, LD_FAN, NO_BANK,
1219 PC87360_REG_FAN_MIN(nr),
1220 data->fan_min[nr]);
1221 }
1222}
1223
1224static struct pc87360_data *pc87360_update_device(struct device *dev)
1225{
1226 struct i2c_client *client = to_i2c_client(dev);
1227 struct pc87360_data *data = i2c_get_clientdata(client);
1228 u8 i;
1229
1230 down(&data->update_lock);
1231
1232 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1233 dev_dbg(&client->dev, "Data update\n");
1234
1235 /* Fans */
1236 for (i = 0; i < data->fannr; i++) {
1237 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1238 data->fan_status[i] =
1239 pc87360_read_value(data, LD_FAN,
1240 NO_BANK, PC87360_REG_FAN_STATUS(i));
1241 data->fan[i] = pc87360_read_value(data, LD_FAN,
1242 NO_BANK, PC87360_REG_FAN(i));
1243 data->fan_min[i] = pc87360_read_value(data,
1244 LD_FAN, NO_BANK,
1245 PC87360_REG_FAN_MIN(i));
1246 /* Change clock divider if needed */
1247 pc87360_autodiv(client, i);
1248 /* Clear bits and write new divider */
1249 pc87360_write_value(data, LD_FAN, NO_BANK,
1250 PC87360_REG_FAN_STATUS(i),
1251 data->fan_status[i]);
1252 }
1253 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1254 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1255 NO_BANK, PC87360_REG_PWM(i));
1256 }
1257
1258 /* Voltages */
1259 for (i = 0; i < data->innr; i++) {
1260 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1261 PC87365_REG_IN_STATUS);
1262 /* Clear bits */
1263 pc87360_write_value(data, LD_IN, i,
1264 PC87365_REG_IN_STATUS,
1265 data->in_status[i]);
1266 if ((data->in_status[i] & 0x81) == 0x81) {
1267 data->in[i] = pc87360_read_value(data, LD_IN,
1268 i, PC87365_REG_IN);
1269 }
1270 if (data->in_status[i] & 0x01) {
1271 data->in_min[i] = pc87360_read_value(data,
1272 LD_IN, i,
1273 PC87365_REG_IN_MIN);
1274 data->in_max[i] = pc87360_read_value(data,
1275 LD_IN, i,
1276 PC87365_REG_IN_MAX);
1277 if (i >= 11)
1278 data->in_crit[i-11] =
1279 pc87360_read_value(data, LD_IN,
1280 i, PC87365_REG_TEMP_CRIT);
1281 }
1282 }
1283 if (data->innr) {
1284 data->in_alarms = pc87360_read_value(data, LD_IN,
1285 NO_BANK, PC87365_REG_IN_ALARMS1)
1286 | ((pc87360_read_value(data, LD_IN,
1287 NO_BANK, PC87365_REG_IN_ALARMS2)
1288 & 0x07) << 8);
1289 data->vid = (data->vid_conf & 0xE0) ?
1290 pc87360_read_value(data, LD_IN,
1291 NO_BANK, PC87365_REG_VID) : 0x1F;
1292 }
1293
1294 /* Temperatures */
1295 for (i = 0; i < data->tempnr; i++) {
1296 data->temp_status[i] = pc87360_read_value(data,
1297 LD_TEMP, i,
1298 PC87365_REG_TEMP_STATUS);
1299 /* Clear bits */
1300 pc87360_write_value(data, LD_TEMP, i,
1301 PC87365_REG_TEMP_STATUS,
1302 data->temp_status[i]);
1303 if ((data->temp_status[i] & 0x81) == 0x81) {
1304 data->temp[i] = pc87360_read_value(data,
1305 LD_TEMP, i,
1306 PC87365_REG_TEMP);
1307 }
1308 if (data->temp_status[i] & 0x01) {
1309 data->temp_min[i] = pc87360_read_value(data,
1310 LD_TEMP, i,
1311 PC87365_REG_TEMP_MIN);
1312 data->temp_max[i] = pc87360_read_value(data,
1313 LD_TEMP, i,
1314 PC87365_REG_TEMP_MAX);
1315 data->temp_crit[i] = pc87360_read_value(data,
1316 LD_TEMP, i,
1317 PC87365_REG_TEMP_CRIT);
1318 }
1319 }
1320 if (data->tempnr) {
1321 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1322 NO_BANK, PC87365_REG_TEMP_ALARMS)
1323 & 0x3F;
1324 }
1325
1326 data->last_updated = jiffies;
1327 data->valid = 1;
1328 }
1329
1330 up(&data->update_lock);
1331
1332 return data;
1333}
1334
1335static int __init pc87360_init(void)
1336{
1337 int i;
1338
1339 if (pc87360_find(0x2e, &devid, extra_isa)
1340 && pc87360_find(0x4e, &devid, extra_isa)) {
1341 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1342 "module not inserted.\n");
1343 return -ENODEV;
1344 }
1345
1346 /* Arbitrarily pick one of the addresses */
1347 for (i = 0; i < 3; i++) {
1348 if (extra_isa[i] != 0x0000) {
2d8672c5 1349 address = extra_isa[i];
1da177e4
LT		 1350 break;
1351 }
1352 }
1353
2d8672c5 1354 if (address == 0x0000) {
1da177e4
LT		 1355 printk(KERN_WARNING "pc87360: No active logical device, "
1356 "module not inserted.\n");
1357 return -ENODEV;
1358 }
1359
fde09509 1360 return i2c_isa_add_driver(&pc87360_driver);
1da177e4
LT		 1361}
1362
1363static void __exit pc87360_exit(void)
1364{
fde09509 1365 i2c_isa_del_driver(&pc87360_driver);
1da177e4
LT		 1366}
1367
1368
1369MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1370MODULE_DESCRIPTION("PC8736x hardware monitor");
1371MODULE_LICENSE("GPL");
1372
1373module_init(pc87360_init);
1374module_exit(pc87360_exit);
Clone of davem's net-next-2.6 tree