[PATCH] i2c: Drop i2c_driver.{owner,name}, 3 of 11
[linux-2.6.git] / drivers / hwmon / pc87360.c
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
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>
41 #include <linux/i2c-isa.h>
42 #include <linux/hwmon.h>
43 #include <linux/hwmon-sysfs.h>
44 #include <linux/hwmon-vid.h>
45 #include <linux/err.h>
46 #include <asm/io.h>
47
48 static u8 devid;
49 static unsigned short address;
50 static unsigned short extra_isa[3];
51 static u8 confreg[4];
52
53 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
54
55 static int init = 1;
56 module_param(init, int, 0);
57 MODULE_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 */
76 static const u8 logdev[3] = { FSCM, VLM, TMS };
77
78 #define LD_FAN          0
79 #define LD_IN           1
80 #define LD_TEMP         2
81
82 static inline void superio_outb(int sioaddr, int reg, int val)
83 {
84         outb(reg, sioaddr);
85         outb(val, sioaddr+1);
86 }
87
88 static inline int superio_inb(int sioaddr, int reg)
89 {
90         outb(reg, sioaddr);
91         return inb(sioaddr+1);
92 }
93
94 static 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))
131 static 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
183 struct pc87360_data {
184         struct i2c_client client;
185         struct class_device *class_dev;
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
224 static int pc87360_detect(struct i2c_adapter *adapter);
225 static int pc87360_detach_client(struct i2c_client *client);
226
227 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
228                               u8 reg);
229 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
230                                 u8 reg, u8 value);
231 static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
232 static struct pc87360_data *pc87360_update_device(struct device *dev);
233
234 /*
235  * Driver data (common to all clients)
236  */
237
238 static struct i2c_driver pc87360_driver = {
239         .driver = {
240                 .owner  = THIS_MODULE,
241                 .name   = "pc87360",
242         },
243         .attach_adapter = pc87360_detect,
244         .detach_client  = pc87360_detach_client,
245 };
246
247 /*
248  * Sysfs stuff
249  */
250
251 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
252 {
253         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
254         struct pc87360_data *data = pc87360_update_device(dev);
255         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
256                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
257 }
258 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
259 {
260         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
261         struct pc87360_data *data = pc87360_update_device(dev);
262         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
263                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
264 }
265 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
266 {
267         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
268         struct pc87360_data *data = pc87360_update_device(dev);
269         return sprintf(buf, "%u\n",
270                        FAN_DIV_FROM_REG(data->fan_status[attr->index]));
271 }
272 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
273 {
274         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
275         struct pc87360_data *data = pc87360_update_device(dev);
276         return sprintf(buf, "%u\n",
277                        FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
278 }
279 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
280         size_t count)
281 {
282         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
283         struct i2c_client *client = to_i2c_client(dev);
284         struct pc87360_data *data = i2c_get_clientdata(client);
285         long fan_min = simple_strtol(buf, NULL, 10);
286
287         down(&data->update_lock);
288         fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
289
290         /* If it wouldn't fit, change clock divisor */
291         while (fan_min > 255
292             && (data->fan_status[attr->index] & 0x60) != 0x60) {
293                 fan_min >>= 1;
294                 data->fan[attr->index] >>= 1;
295                 data->fan_status[attr->index] += 0x20;
296         }
297         data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
298         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
299                             data->fan_min[attr->index]);
300
301         /* Write new divider, preserve alarm bits */
302         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
303                             data->fan_status[attr->index] & 0xF9);
304         up(&data->update_lock);
305
306         return count;
307 }
308
309 #define show_and_set_fan(offset) \
310 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
311         show_fan_input, NULL, offset-1); \
312 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
313         show_fan_min, set_fan_min, offset-1); \
314 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
315         show_fan_div, NULL, offset-1); \
316 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
317         show_fan_status, NULL, offset-1);
318 show_and_set_fan(1)
319 show_and_set_fan(2)
320 show_and_set_fan(3)
321
322 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
323 {
324         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
325         struct pc87360_data *data = pc87360_update_device(dev);
326         return sprintf(buf, "%u\n",
327                        PWM_FROM_REG(data->pwm[attr->index],
328                                     FAN_CONFIG_INVERT(data->fan_conf,
329                                                       attr->index)));
330 }
331 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
332         size_t count)
333 {
334         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
335         struct i2c_client *client = to_i2c_client(dev);
336         struct pc87360_data *data = i2c_get_clientdata(client);
337         long val = simple_strtol(buf, NULL, 10);
338
339         down(&data->update_lock);
340         data->pwm[attr->index] = PWM_TO_REG(val,
341                               FAN_CONFIG_INVERT(data->fan_conf, attr->index));
342         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
343                             data->pwm[attr->index]);
344         up(&data->update_lock);
345         return count;
346 }
347
348 #define show_and_set_pwm(offset) \
349 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
350         show_pwm, set_pwm, offset-1);
351 show_and_set_pwm(1)
352 show_and_set_pwm(2)
353 show_and_set_pwm(3)
354
355 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
356 {
357         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
358         struct pc87360_data *data = pc87360_update_device(dev);
359         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
360                        data->in_vref));
361 }
362 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
363 {
364         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
365         struct pc87360_data *data = pc87360_update_device(dev);
366         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
367                        data->in_vref));
368 }
369 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
370 {
371         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
372         struct pc87360_data *data = pc87360_update_device(dev);
373         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
374                        data->in_vref));
375 }
376 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
377 {
378         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
379         struct pc87360_data *data = pc87360_update_device(dev);
380         return sprintf(buf, "%u\n", data->in_status[attr->index]);
381 }
382 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
383         size_t count)
384 {
385         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
386         struct i2c_client *client = to_i2c_client(dev);
387         struct pc87360_data *data = i2c_get_clientdata(client);
388         long val = simple_strtol(buf, NULL, 10);
389
390         down(&data->update_lock);
391         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
392         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
393                             data->in_min[attr->index]);
394         up(&data->update_lock);
395         return count;
396 }
397 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
398         size_t count)
399 {
400         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
401         struct i2c_client *client = to_i2c_client(dev);
402         struct pc87360_data *data = i2c_get_clientdata(client);
403         long val = simple_strtol(buf, NULL, 10);
404
405         down(&data->update_lock);
406         data->in_max[attr->index] = IN_TO_REG(val,
407                                data->in_vref);
408         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
409                             data->in_max[attr->index]);
410         up(&data->update_lock);
411         return count;
412 }
413
414 #define show_and_set_in(offset) \
415 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
416         show_in_input, NULL, offset); \
417 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
418         show_in_min, set_in_min, offset); \
419 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
420         show_in_max, set_in_max, offset); \
421 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
422         show_in_status, NULL, offset);
423 show_and_set_in(0)
424 show_and_set_in(1)
425 show_and_set_in(2)
426 show_and_set_in(3)
427 show_and_set_in(4)
428 show_and_set_in(5)
429 show_and_set_in(6)
430 show_and_set_in(7)
431 show_and_set_in(8)
432 show_and_set_in(9)
433 show_and_set_in(10)
434
435 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
436 {
437         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
438         struct pc87360_data *data = pc87360_update_device(dev);
439         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
440                        data->in_vref));
441 }
442 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
443 {
444         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
445         struct pc87360_data *data = pc87360_update_device(dev);
446         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
447                        data->in_vref));
448 }
449 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
450 {
451         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
452         struct pc87360_data *data = pc87360_update_device(dev);
453         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
454                        data->in_vref));
455 }
456 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
457 {
458         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
459         struct pc87360_data *data = pc87360_update_device(dev);
460         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
461                        data->in_vref));
462 }
463 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
464 {
465         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
466         struct pc87360_data *data = pc87360_update_device(dev);
467         return sprintf(buf, "%u\n", data->in_status[attr->index]);
468 }
469 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
470         size_t count)
471 {
472         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
473         struct i2c_client *client = to_i2c_client(dev);
474         struct pc87360_data *data = i2c_get_clientdata(client);
475         long val = simple_strtol(buf, NULL, 10);
476
477         down(&data->update_lock);
478         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
479         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
480                             data->in_min[attr->index]);
481         up(&data->update_lock);
482         return count;
483 }
484 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
485         size_t count)
486 {
487         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
488         struct i2c_client *client = to_i2c_client(dev);
489         struct pc87360_data *data = i2c_get_clientdata(client);
490         long val = simple_strtol(buf, NULL, 10);
491
492         down(&data->update_lock);
493         data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
494         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
495                             data->in_max[attr->index]);
496         up(&data->update_lock);
497         return count;
498 }
499 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
500         size_t count)
501 {
502         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
503         struct i2c_client *client = to_i2c_client(dev);
504         struct pc87360_data *data = i2c_get_clientdata(client);
505         long val = simple_strtol(buf, NULL, 10);
506
507         down(&data->update_lock);
508         data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
509         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
510                             data->in_crit[attr->index-11]);
511         up(&data->update_lock);
512         return count;
513 }
514
515 #define show_and_set_therm(offset) \
516 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
517         show_therm_input, NULL, 11+offset-4); \
518 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
519         show_therm_min, set_therm_min, 11+offset-4); \
520 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
521         show_therm_max, set_therm_max, 11+offset-4); \
522 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
523         show_therm_crit, set_therm_crit, 11+offset-4); \
524 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
525         show_therm_status, NULL, 11+offset-4);
526 show_and_set_therm(4)
527 show_and_set_therm(5)
528 show_and_set_therm(6)
529
530 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
531 {
532         struct pc87360_data *data = pc87360_update_device(dev);
533         return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
534 }
535 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
536
537 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
538 {
539         struct pc87360_data *data = pc87360_update_device(dev);
540         return sprintf(buf, "%u\n", data->vrm);
541 }
542 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
543 {
544         struct i2c_client *client = to_i2c_client(dev);
545         struct pc87360_data *data = i2c_get_clientdata(client);
546         data->vrm = simple_strtoul(buf, NULL, 10);
547         return count;
548 }
549 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
550
551 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
552 {
553         struct pc87360_data *data = pc87360_update_device(dev);
554         return sprintf(buf, "%u\n", data->in_alarms);
555 }
556 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
557
558 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
559 {
560         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
561         struct pc87360_data *data = pc87360_update_device(dev);
562         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
563 }
564 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
565 {
566         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
567         struct pc87360_data *data = pc87360_update_device(dev);
568         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
569 }
570 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
571 {
572         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
573         struct pc87360_data *data = pc87360_update_device(dev);
574         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
575 }
576 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
577 {
578         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
579         struct pc87360_data *data = pc87360_update_device(dev);
580         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
581 }
582 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
583 {
584         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
585         struct pc87360_data *data = pc87360_update_device(dev);
586         return sprintf(buf, "%d\n", data->temp_status[attr->index]);
587 }
588 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
589         size_t count)
590 {
591         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
592         struct i2c_client *client = to_i2c_client(dev);
593         struct pc87360_data *data = i2c_get_clientdata(client);
594         long val = simple_strtol(buf, NULL, 10);
595
596         down(&data->update_lock);
597         data->temp_min[attr->index] = TEMP_TO_REG(val);
598         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
599                             data->temp_min[attr->index]);
600         up(&data->update_lock);
601         return count;
602 }
603 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
604         size_t count)
605 {
606         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
607         struct i2c_client *client = to_i2c_client(dev);
608         struct pc87360_data *data = i2c_get_clientdata(client);
609         long val = simple_strtol(buf, NULL, 10);
610
611         down(&data->update_lock);
612         data->temp_max[attr->index] = TEMP_TO_REG(val);
613         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
614                             data->temp_max[attr->index]);
615         up(&data->update_lock);
616         return count;
617 }
618 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
619         size_t count)
620 {
621         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
622         struct i2c_client *client = to_i2c_client(dev);
623         struct pc87360_data *data = i2c_get_clientdata(client);
624         long val = simple_strtol(buf, NULL, 10);
625
626         down(&data->update_lock);
627         data->temp_crit[attr->index] = TEMP_TO_REG(val);
628         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
629                             data->temp_crit[attr->index]);
630         up(&data->update_lock);
631         return count;
632 }
633
634 #define show_and_set_temp(offset) \
635 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
636         show_temp_input, NULL, offset-1); \
637 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
638         show_temp_min, set_temp_min, offset-1); \
639 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
640         show_temp_max, set_temp_max, offset-1); \
641 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
642         show_temp_crit, set_temp_crit, offset-1); \
643 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
644         show_temp_status, NULL, offset-1);
645 show_and_set_temp(1)
646 show_and_set_temp(2)
647 show_and_set_temp(3)
648
649 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
650 {
651         struct pc87360_data *data = pc87360_update_device(dev);
652         return sprintf(buf, "%u\n", data->temp_alarms);
653 }
654 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
655
656 /*
657  * Device detection, registration and update
658  */
659
660 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
661 {
662         u16 val;
663         int i;
664         int nrdev; /* logical device count */
665
666         /* No superio_enter */
667
668         /* Identify device */
669         val = superio_inb(sioaddr, DEVID);
670         switch (val) {
671         case 0xE1: /* PC87360 */
672         case 0xE8: /* PC87363 */
673         case 0xE4: /* PC87364 */
674                 nrdev = 1;
675                 break;
676         case 0xE5: /* PC87365 */
677         case 0xE9: /* PC87366 */
678                 nrdev = 3;
679                 break;
680         default:
681                 superio_exit(sioaddr);
682                 return -ENODEV;
683         }
684         /* Remember the device id */
685         *devid = val;
686
687         for (i = 0; i < nrdev; i++) {
688                 /* select logical device */
689                 superio_outb(sioaddr, DEV, logdev[i]);
690
691                 val = superio_inb(sioaddr, ACT);
692                 if (!(val & 0x01)) {
693                         printk(KERN_INFO "pc87360: Device 0x%02x not "
694                                "activated\n", logdev[i]);
695                         continue;
696                 }
697
698                 val = (superio_inb(sioaddr, BASE) << 8)
699                     | superio_inb(sioaddr, BASE + 1);
700                 if (!val) {
701                         printk(KERN_INFO "pc87360: Base address not set for "
702                                "device 0x%02x\n", logdev[i]);
703                         continue;
704                 }
705
706                 addresses[i] = val;
707
708                 if (i==0) { /* Fans */
709                         confreg[0] = superio_inb(sioaddr, 0xF0);
710                         confreg[1] = superio_inb(sioaddr, 0xF1);
711
712 #ifdef DEBUG
713                         printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
714                                "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
715                                (confreg[0]>>3)&1, (confreg[0]>>4)&1);
716                         printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
717                                "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
718                                (confreg[0]>>6)&1, (confreg[0]>>7)&1);
719                         printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
720                                "ctrl=%d inv=%d\n", confreg[1]&1,
721                                (confreg[1]>>1)&1, (confreg[1]>>2)&1);
722 #endif
723                 } else if (i==1) { /* Voltages */
724                         /* Are we using thermistors? */
725                         if (*devid == 0xE9) { /* PC87366 */
726                                 /* These registers are not logical-device
727                                    specific, just that we won't need them if
728                                    we don't use the VLM device */
729                                 confreg[2] = superio_inb(sioaddr, 0x2B);
730                                 confreg[3] = superio_inb(sioaddr, 0x25);
731
732                                 if (confreg[2] & 0x40) {
733                                         printk(KERN_INFO "pc87360: Using "
734                                                "thermistors for temperature "
735                                                "monitoring\n");
736                                 }
737                                 if (confreg[3] & 0xE0) {
738                                         printk(KERN_INFO "pc87360: VID "
739                                                "inputs routed (mode %u)\n",
740                                                confreg[3] >> 5);
741                                 }
742                         }
743                 }
744         }
745
746         superio_exit(sioaddr);
747         return 0;
748 }
749
750 static int pc87360_detect(struct i2c_adapter *adapter)
751 {
752         int i;
753         struct i2c_client *new_client;
754         struct pc87360_data *data;
755         int err = 0;
756         const char *name = "pc87360";
757         int use_thermistors = 0;
758
759         if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
760                 return -ENOMEM;
761
762         new_client = &data->client;
763         i2c_set_clientdata(new_client, data);
764         new_client->addr = address;
765         init_MUTEX(&data->lock);
766         new_client->adapter = adapter;
767         new_client->driver = &pc87360_driver;
768         new_client->flags = 0;
769
770         data->fannr = 2;
771         data->innr = 0;
772         data->tempnr = 0;
773
774         switch (devid) {
775         case 0xe8:
776                 name = "pc87363";
777                 break;
778         case 0xe4:
779                 name = "pc87364";
780                 data->fannr = 3;
781                 break;
782         case 0xe5:
783                 name = "pc87365";
784                 data->fannr = extra_isa[0] ? 3 : 0;
785                 data->innr = extra_isa[1] ? 11 : 0;
786                 data->tempnr = extra_isa[2] ? 2 : 0;
787                 break;
788         case 0xe9:
789                 name = "pc87366";
790                 data->fannr = extra_isa[0] ? 3 : 0;
791                 data->innr = extra_isa[1] ? 14 : 0;
792                 data->tempnr = extra_isa[2] ? 3 : 0;
793                 break;
794         }
795
796         strcpy(new_client->name, name);
797         data->valid = 0;
798         init_MUTEX(&data->update_lock);
799
800         for (i = 0; i < 3; i++) {
801                 if (((data->address[i] = extra_isa[i]))
802                  && !request_region(extra_isa[i], PC87360_EXTENT,
803                                     pc87360_driver.driver.name)) {
804                         dev_err(&new_client->dev, "Region 0x%x-0x%x already "
805                                 "in use!\n", extra_isa[i],
806                                 extra_isa[i]+PC87360_EXTENT-1);
807                         for (i--; i >= 0; i--)
808                                 release_region(extra_isa[i], PC87360_EXTENT);
809                         err = -EBUSY;
810                         goto ERROR1;
811                 }
812         }
813
814         /* Retrieve the fans configuration from Super-I/O space */
815         if (data->fannr)
816                 data->fan_conf = confreg[0] | (confreg[1] << 8);
817
818         if ((err = i2c_attach_client(new_client)))
819                 goto ERROR2;
820
821         /* Use the correct reference voltage
822            Unless both the VLM and the TMS logical devices agree to
823            use an external Vref, the internal one is used. */
824         if (data->innr) {
825                 i = pc87360_read_value(data, LD_IN, NO_BANK,
826                                        PC87365_REG_IN_CONFIG);
827                 if (data->tempnr) {
828                         i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
829                                                 PC87365_REG_TEMP_CONFIG);
830                 }
831                 data->in_vref = (i&0x02) ? 3025 : 2966;
832                 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
833                         (i&0x02) ? "external" : "internal");
834
835                 data->vid_conf = confreg[3];
836                 data->vrm = 90;
837         }
838
839         /* Fan clock dividers may be needed before any data is read */
840         for (i = 0; i < data->fannr; i++) {
841                 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
842                         data->fan_status[i] = pc87360_read_value(data,
843                                               LD_FAN, NO_BANK,
844                                               PC87360_REG_FAN_STATUS(i));
845         }
846
847         if (init > 0) {
848                 if (devid == 0xe9 && data->address[1]) /* PC87366 */
849                         use_thermistors = confreg[2] & 0x40;
850
851                 pc87360_init_client(new_client, use_thermistors);
852         }
853
854         /* Register sysfs hooks */
855         data->class_dev = hwmon_device_register(&new_client->dev);
856         if (IS_ERR(data->class_dev)) {
857                 err = PTR_ERR(data->class_dev);
858                 goto ERROR3;
859         }
860
861         if (data->innr) {
862                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
863                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
864                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
865                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
866                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
867                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
868                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
869                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
870                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
871                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
872                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
873                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
874                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
875                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
876                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
877                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
878                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
879                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
880                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
881                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
882                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
883                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
884                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
885                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
886                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
887                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
888                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
889                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
890                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
891                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
892                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
893                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
894                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
895                 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr);
896                 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr);
897                 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr);
898                 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr);
899                 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr);
900                 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr);
901                 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr);
902                 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr);
903                 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr);
904                 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr);
905                 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr);
906
907                 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
908                 device_create_file(&new_client->dev, &dev_attr_vrm);
909                 device_create_file(&new_client->dev, &dev_attr_alarms_in);
910         }
911
912         if (data->tempnr) {
913                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
914                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
915                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
916                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
917                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
918                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
919                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
920                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
921                 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr);
922                 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr);
923
924                 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
925         }
926         if (data->tempnr == 3) {
927                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
928                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
929                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
930                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
931                 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr);
932         }
933         if (data->innr == 14) {
934                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr);
935                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr);
936                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr);
937                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr);
938                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr);
939                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr);
940                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr);
941                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr);
942                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr);
943                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr);
944                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr);
945                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr);
946                 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr);
947                 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr);
948                 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr);
949         }
950
951         if (data->fannr) {
952                 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
953                         device_create_file(&new_client->dev,
954                                            &sensor_dev_attr_fan1_input.dev_attr);
955                         device_create_file(&new_client->dev,
956                                            &sensor_dev_attr_fan1_min.dev_attr);
957                         device_create_file(&new_client->dev,
958                                            &sensor_dev_attr_fan1_div.dev_attr);
959                         device_create_file(&new_client->dev,
960                                            &sensor_dev_attr_fan1_status.dev_attr);
961                 }
962
963                 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
964                         device_create_file(&new_client->dev,
965                                            &sensor_dev_attr_fan2_input.dev_attr);
966                         device_create_file(&new_client->dev,
967                                            &sensor_dev_attr_fan2_min.dev_attr);
968                         device_create_file(&new_client->dev,
969                                            &sensor_dev_attr_fan2_div.dev_attr);
970                         device_create_file(&new_client->dev,
971                                            &sensor_dev_attr_fan2_status.dev_attr);
972                 }
973
974                 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
975                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr);
976                 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
977                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr);
978         }
979         if (data->fannr == 3) {
980                 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
981                         device_create_file(&new_client->dev,
982                                            &sensor_dev_attr_fan3_input.dev_attr);
983                         device_create_file(&new_client->dev,
984                                            &sensor_dev_attr_fan3_min.dev_attr);
985                         device_create_file(&new_client->dev,
986                                            &sensor_dev_attr_fan3_div.dev_attr);
987                         device_create_file(&new_client->dev,
988                                            &sensor_dev_attr_fan3_status.dev_attr);
989                 }
990
991                 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
992                         device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr);
993         }
994
995         return 0;
996
997 ERROR3:
998         i2c_detach_client(new_client);
999 ERROR2:
1000         for (i = 0; i < 3; i++) {
1001                 if (data->address[i]) {
1002                         release_region(data->address[i], PC87360_EXTENT);
1003                 }
1004         }
1005 ERROR1:
1006         kfree(data);
1007         return err;
1008 }
1009
1010 static int pc87360_detach_client(struct i2c_client *client)
1011 {
1012         struct pc87360_data *data = i2c_get_clientdata(client);
1013         int i;
1014
1015         hwmon_device_unregister(data->class_dev);
1016
1017         if ((i = i2c_detach_client(client)))
1018                 return i;
1019
1020         for (i = 0; i < 3; i++) {
1021                 if (data->address[i]) {
1022                         release_region(data->address[i], PC87360_EXTENT);
1023                 }
1024         }
1025         kfree(data);
1026
1027         return 0;
1028 }
1029
1030 /* ldi is the logical device index
1031    bank is for voltages and temperatures only */
1032 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1033                               u8 reg)
1034 {
1035         int res;
1036
1037         down(&(data->lock));
1038         if (bank != NO_BANK)
1039                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1040         res = inb_p(data->address[ldi] + reg);
1041         up(&(data->lock));
1042
1043         return res;
1044 }
1045
1046 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1047                                 u8 reg, u8 value)
1048 {
1049         down(&(data->lock));
1050         if (bank != NO_BANK)
1051                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1052         outb_p(value, data->address[ldi] + reg);
1053         up(&(data->lock));
1054 }
1055
1056 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1057 {
1058         struct pc87360_data *data = i2c_get_clientdata(client);
1059         int i, nr;
1060         const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1061         const u8 init_temp[3] = { 2, 2, 1 };
1062         u8 reg;
1063
1064         if (init >= 2 && data->innr) {
1065                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1066                                          PC87365_REG_IN_CONVRATE);
1067                 dev_info(&client->dev, "VLM conversion set to "
1068                          "1s period, 160us delay\n");
1069                 pc87360_write_value(data, LD_IN, NO_BANK,
1070                                     PC87365_REG_IN_CONVRATE,
1071                                     (reg & 0xC0) | 0x11);
1072         }
1073
1074         nr = data->innr < 11 ? data->innr : 11;
1075         for (i=0; i<nr; i++) {
1076                 if (init >= init_in[i]) {
1077                         /* Forcibly enable voltage channel */
1078                         reg = pc87360_read_value(data, LD_IN, i,
1079                                                  PC87365_REG_IN_STATUS);
1080                         if (!(reg & 0x01)) {
1081                                 dev_dbg(&client->dev, "Forcibly "
1082                                         "enabling in%d\n", i);
1083                                 pc87360_write_value(data, LD_IN, i,
1084                                                     PC87365_REG_IN_STATUS,
1085                                                     (reg & 0x68) | 0x87);
1086                         }
1087                 }
1088         }
1089
1090         /* We can't blindly trust the Super-I/O space configuration bit,
1091            most BIOS won't set it properly */
1092         for (i=11; i<data->innr; i++) {
1093                 reg = pc87360_read_value(data, LD_IN, i,
1094                                          PC87365_REG_TEMP_STATUS);
1095                 use_thermistors = use_thermistors || (reg & 0x01);
1096         }
1097
1098         i = use_thermistors ? 2 : 0;
1099         for (; i<data->tempnr; i++) {
1100                 if (init >= init_temp[i]) {
1101                         /* Forcibly enable temperature channel */
1102                         reg = pc87360_read_value(data, LD_TEMP, i,
1103                                                  PC87365_REG_TEMP_STATUS);
1104                         if (!(reg & 0x01)) {
1105                                 dev_dbg(&client->dev, "Forcibly "
1106                                         "enabling temp%d\n", i+1);
1107                                 pc87360_write_value(data, LD_TEMP, i,
1108                                                     PC87365_REG_TEMP_STATUS,
1109                                                     0xCF);
1110                         }
1111                 }
1112         }
1113
1114         if (use_thermistors) {
1115                 for (i=11; i<data->innr; i++) {
1116                         if (init >= init_in[i]) {
1117                                 /* The pin may already be used by thermal
1118                                    diodes */
1119                                 reg = pc87360_read_value(data, LD_TEMP,
1120                                       (i-11)/2, PC87365_REG_TEMP_STATUS);
1121                                 if (reg & 0x01) {
1122                                         dev_dbg(&client->dev, "Skipping "
1123                                                 "temp%d, pin already in use "
1124                                                 "by temp%d\n", i-7, (i-11)/2);
1125                                         continue;
1126                                 }
1127
1128                                 /* Forcibly enable thermistor channel */
1129                                 reg = pc87360_read_value(data, LD_IN, i,
1130                                                          PC87365_REG_IN_STATUS);
1131                                 if (!(reg & 0x01)) {
1132                                         dev_dbg(&client->dev, "Forcibly "
1133                                                 "enabling temp%d\n", i-7);
1134                                         pc87360_write_value(data, LD_IN, i,
1135                                                 PC87365_REG_TEMP_STATUS,
1136                                                 (reg & 0x60) | 0x8F);
1137                                 }
1138                         }
1139                 }
1140         }
1141
1142         if (data->innr) {
1143                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1144                                          PC87365_REG_IN_CONFIG);
1145                 if (reg & 0x01) {
1146                         dev_dbg(&client->dev, "Forcibly "
1147                                 "enabling monitoring (VLM)\n");
1148                         pc87360_write_value(data, LD_IN, NO_BANK,
1149                                             PC87365_REG_IN_CONFIG,
1150                                             reg & 0xFE);
1151                 }
1152         }
1153
1154         if (data->tempnr) {
1155                 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1156                                          PC87365_REG_TEMP_CONFIG);
1157                 if (reg & 0x01) {
1158                         dev_dbg(&client->dev, "Forcibly enabling "
1159                                 "monitoring (TMS)\n");
1160                         pc87360_write_value(data, LD_TEMP, NO_BANK,
1161                                             PC87365_REG_TEMP_CONFIG,
1162                                             reg & 0xFE);
1163                 }
1164
1165                 if (init >= 2) {
1166                         /* Chip config as documented by National Semi. */
1167                         pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1168                         /* We voluntarily omit the bank here, in case the
1169                            sequence itself matters. It shouldn't be a problem,
1170                            since nobody else is supposed to access the
1171                            device at that point. */
1172                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1173                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1174                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1175                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1176                 }
1177         }
1178 }
1179
1180 static void pc87360_autodiv(struct i2c_client *client, int nr)
1181 {
1182         struct pc87360_data *data = i2c_get_clientdata(client);
1183         u8 old_min = data->fan_min[nr];
1184
1185         /* Increase clock divider if needed and possible */
1186         if ((data->fan_status[nr] & 0x04) /* overflow flag */
1187          || (data->fan[nr] >= 224)) { /* next to overflow */
1188                 if ((data->fan_status[nr] & 0x60) != 0x60) {
1189                         data->fan_status[nr] += 0x20;
1190                         data->fan_min[nr] >>= 1;
1191                         data->fan[nr] >>= 1;
1192                         dev_dbg(&client->dev, "Increasing "
1193                                 "clock divider to %d for fan %d\n",
1194                                 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1195                 }
1196         } else {
1197                 /* Decrease clock divider if possible */
1198                 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1199                  && data->fan[nr] < 85 /* bad accuracy */
1200                  && (data->fan_status[nr] & 0x60) != 0x00) {
1201                         data->fan_status[nr] -= 0x20;
1202                         data->fan_min[nr] <<= 1;
1203                         data->fan[nr] <<= 1;
1204                         dev_dbg(&client->dev, "Decreasing "
1205                                 "clock divider to %d for fan %d\n",
1206                                 FAN_DIV_FROM_REG(data->fan_status[nr]),
1207                                 nr+1);
1208                 }
1209         }
1210
1211         /* Write new fan min if it changed */
1212         if (old_min != data->fan_min[nr]) {
1213                 pc87360_write_value(data, LD_FAN, NO_BANK,
1214                                     PC87360_REG_FAN_MIN(nr),
1215                                     data->fan_min[nr]);
1216         }
1217 }
1218
1219 static struct pc87360_data *pc87360_update_device(struct device *dev)
1220 {
1221         struct i2c_client *client = to_i2c_client(dev);
1222         struct pc87360_data *data = i2c_get_clientdata(client);
1223         u8 i;
1224
1225         down(&data->update_lock);
1226
1227         if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1228                 dev_dbg(&client->dev, "Data update\n");
1229
1230                 /* Fans */
1231                 for (i = 0; i < data->fannr; i++) {
1232                         if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1233                                 data->fan_status[i] =
1234                                         pc87360_read_value(data, LD_FAN,
1235                                         NO_BANK, PC87360_REG_FAN_STATUS(i));
1236                                 data->fan[i] = pc87360_read_value(data, LD_FAN,
1237                                                NO_BANK, PC87360_REG_FAN(i));
1238                                 data->fan_min[i] = pc87360_read_value(data,
1239                                                    LD_FAN, NO_BANK,
1240                                                    PC87360_REG_FAN_MIN(i));
1241                                 /* Change clock divider if needed */
1242                                 pc87360_autodiv(client, i);
1243                                 /* Clear bits and write new divider */
1244                                 pc87360_write_value(data, LD_FAN, NO_BANK,
1245                                                     PC87360_REG_FAN_STATUS(i),
1246                                                     data->fan_status[i]);
1247                         }
1248                         if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1249                                 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1250                                                NO_BANK, PC87360_REG_PWM(i));
1251                 }
1252
1253                 /* Voltages */
1254                 for (i = 0; i < data->innr; i++) {
1255                         data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1256                                              PC87365_REG_IN_STATUS);
1257                         /* Clear bits */
1258                         pc87360_write_value(data, LD_IN, i,
1259                                             PC87365_REG_IN_STATUS,
1260                                             data->in_status[i]);
1261                         if ((data->in_status[i] & 0x81) == 0x81) {
1262                                 data->in[i] = pc87360_read_value(data, LD_IN,
1263                                               i, PC87365_REG_IN);
1264                         }
1265                         if (data->in_status[i] & 0x01) {
1266                                 data->in_min[i] = pc87360_read_value(data,
1267                                                   LD_IN, i,
1268                                                   PC87365_REG_IN_MIN);
1269                                 data->in_max[i] = pc87360_read_value(data,
1270                                                   LD_IN, i,
1271                                                   PC87365_REG_IN_MAX);
1272                                 if (i >= 11)
1273                                         data->in_crit[i-11] =
1274                                                 pc87360_read_value(data, LD_IN,
1275                                                 i, PC87365_REG_TEMP_CRIT);
1276                         }
1277                 }
1278                 if (data->innr) {
1279                         data->in_alarms = pc87360_read_value(data, LD_IN,
1280                                           NO_BANK, PC87365_REG_IN_ALARMS1)
1281                                         | ((pc87360_read_value(data, LD_IN,
1282                                             NO_BANK, PC87365_REG_IN_ALARMS2)
1283                                             & 0x07) << 8);
1284                         data->vid = (data->vid_conf & 0xE0) ?
1285                                     pc87360_read_value(data, LD_IN,
1286                                     NO_BANK, PC87365_REG_VID) : 0x1F;
1287                 }
1288
1289                 /* Temperatures */
1290                 for (i = 0; i < data->tempnr; i++) {
1291                         data->temp_status[i] = pc87360_read_value(data,
1292                                                LD_TEMP, i,
1293                                                PC87365_REG_TEMP_STATUS);
1294                         /* Clear bits */
1295                         pc87360_write_value(data, LD_TEMP, i,
1296                                             PC87365_REG_TEMP_STATUS,
1297                                             data->temp_status[i]);
1298                         if ((data->temp_status[i] & 0x81) == 0x81) {
1299                                 data->temp[i] = pc87360_read_value(data,
1300                                                 LD_TEMP, i,
1301                                                 PC87365_REG_TEMP);
1302                         }
1303                         if (data->temp_status[i] & 0x01) {
1304                                 data->temp_min[i] = pc87360_read_value(data,
1305                                                     LD_TEMP, i,
1306                                                     PC87365_REG_TEMP_MIN);
1307                                 data->temp_max[i] = pc87360_read_value(data,
1308                                                     LD_TEMP, i,
1309                                                     PC87365_REG_TEMP_MAX);
1310                                 data->temp_crit[i] = pc87360_read_value(data,
1311                                                      LD_TEMP, i,
1312                                                      PC87365_REG_TEMP_CRIT);
1313                         }
1314                 }
1315                 if (data->tempnr) {
1316                         data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1317                                             NO_BANK, PC87365_REG_TEMP_ALARMS)
1318                                             & 0x3F;
1319                 }
1320
1321                 data->last_updated = jiffies;
1322                 data->valid = 1;
1323         }
1324
1325         up(&data->update_lock);
1326
1327         return data;
1328 }
1329
1330 static int __init pc87360_init(void)
1331 {
1332         int i;
1333
1334         if (pc87360_find(0x2e, &devid, extra_isa)
1335          && pc87360_find(0x4e, &devid, extra_isa)) {
1336                 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1337                        "module not inserted.\n");
1338                 return -ENODEV;
1339         }
1340
1341         /* Arbitrarily pick one of the addresses */
1342         for (i = 0; i < 3; i++) {
1343                 if (extra_isa[i] != 0x0000) {
1344                         address = extra_isa[i];
1345                         break;
1346                 }
1347         }
1348
1349         if (address == 0x0000) {
1350                 printk(KERN_WARNING "pc87360: No active logical device, "
1351                        "module not inserted.\n");
1352                 return -ENODEV;
1353         }
1354
1355         return i2c_isa_add_driver(&pc87360_driver);
1356 }
1357
1358 static void __exit pc87360_exit(void)
1359 {
1360         i2c_isa_del_driver(&pc87360_driver);
1361 }
1362
1363
1364 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1365 MODULE_DESCRIPTION("PC8736x hardware monitor");
1366 MODULE_LICENSE("GPL");
1367
1368 module_init(pc87360_init);
1369 module_exit(pc87360_exit);