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Merge master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6/x86.git] / drivers / hwmon / pc87360.c
blob17f745a23d049898ba55dc51dc7499d64fcee606
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 .owner = THIS_MODULE,
240 .name = "pc87360",
241 .attach_adapter = pc87360_detect,
242 .detach_client = pc87360_detach_client,
243 };
244
245 /*
246 * Sysfs stuff
247 */
248
249 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
250 {
251 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
252 struct pc87360_data *data = pc87360_update_device(dev);
253 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
254 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
255 }
256 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
257 {
258 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
259 struct pc87360_data *data = pc87360_update_device(dev);
260 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
261 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
262 }
263 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
264 {
265 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
266 struct pc87360_data *data = pc87360_update_device(dev);
267 return sprintf(buf, "%u\n",
268 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
269 }
270 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
271 {
272 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
273 struct pc87360_data *data = pc87360_update_device(dev);
274 return sprintf(buf, "%u\n",
275 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
276 }
277 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
278 size_t count)
279 {
280 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
281 struct i2c_client *client = to_i2c_client(dev);
282 struct pc87360_data *data = i2c_get_clientdata(client);
283 long fan_min = simple_strtol(buf, NULL, 10);
284
285 down(&data->update_lock);
286 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
287
288 /* If it wouldn't fit, change clock divisor */
289 while (fan_min > 255
290 && (data->fan_status[attr->index] & 0x60) != 0x60) {
291 fan_min >>= 1;
292 data->fan[attr->index] >>= 1;
293 data->fan_status[attr->index] += 0x20;
294 }
295 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
296 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
297 data->fan_min[attr->index]);
298
299 /* Write new divider, preserve alarm bits */
300 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
301 data->fan_status[attr->index] & 0xF9);
302 up(&data->update_lock);
303
304 return count;
305 }
306
307 #define show_and_set_fan(offset) \
308 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
309 show_fan_input, NULL, offset-1); \
310 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
311 show_fan_min, set_fan_min, offset-1); \
312 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
313 show_fan_div, NULL, offset-1); \
314 static SENSOR_DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
315 show_fan_status, NULL, offset-1);
316 show_and_set_fan(1)
317 show_and_set_fan(2)
318 show_and_set_fan(3)
319
320 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
321 {
322 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
323 struct pc87360_data *data = pc87360_update_device(dev);
324 return sprintf(buf, "%u\n",
325 PWM_FROM_REG(data->pwm[attr->index],
326 FAN_CONFIG_INVERT(data->fan_conf,
327 attr->index)));
328 }
329 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
330 size_t count)
331 {
332 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
333 struct i2c_client *client = to_i2c_client(dev);
334 struct pc87360_data *data = i2c_get_clientdata(client);
335 long val = simple_strtol(buf, NULL, 10);
336
337 down(&data->update_lock);
338 data->pwm[attr->index] = PWM_TO_REG(val,
339 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
340 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
341 data->pwm[attr->index]);
342 up(&data->update_lock);
343 return count;
344 }
345
346 #define show_and_set_pwm(offset) \
347 static SENSOR_DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
348 show_pwm, set_pwm, offset-1);
349 show_and_set_pwm(1)
350 show_and_set_pwm(2)
351 show_and_set_pwm(3)
352
353 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
354 {
355 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
356 struct pc87360_data *data = pc87360_update_device(dev);
357 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
358 data->in_vref));
359 }
360 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
361 {
362 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
363 struct pc87360_data *data = pc87360_update_device(dev);
364 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
365 data->in_vref));
366 }
367 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
368 {
369 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
370 struct pc87360_data *data = pc87360_update_device(dev);
371 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
372 data->in_vref));
373 }
374 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
375 {
376 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
377 struct pc87360_data *data = pc87360_update_device(dev);
378 return sprintf(buf, "%u\n", data->in_status[attr->index]);
379 }
380 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
381 size_t count)
382 {
383 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
384 struct i2c_client *client = to_i2c_client(dev);
385 struct pc87360_data *data = i2c_get_clientdata(client);
386 long val = simple_strtol(buf, NULL, 10);
387
388 down(&data->update_lock);
389 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
390 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
391 data->in_min[attr->index]);
392 up(&data->update_lock);
393 return count;
394 }
395 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
396 size_t count)
397 {
398 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
399 struct i2c_client *client = to_i2c_client(dev);
400 struct pc87360_data *data = i2c_get_clientdata(client);
401 long val = simple_strtol(buf, NULL, 10);
402
403 down(&data->update_lock);
404 data->in_max[attr->index] = IN_TO_REG(val,
405 data->in_vref);
406 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
407 data->in_max[attr->index]);
408 up(&data->update_lock);
409 return count;
410 }
411
412 #define show_and_set_in(offset) \
413 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
414 show_in_input, NULL, offset); \
415 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
416 show_in_min, set_in_min, offset); \
417 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
418 show_in_max, set_in_max, offset); \
419 static SENSOR_DEVICE_ATTR(in##offset##_status, S_IRUGO, \
420 show_in_status, NULL, offset);
421 show_and_set_in(0)
422 show_and_set_in(1)
423 show_and_set_in(2)
424 show_and_set_in(3)
425 show_and_set_in(4)
426 show_and_set_in(5)
427 show_and_set_in(6)
428 show_and_set_in(7)
429 show_and_set_in(8)
430 show_and_set_in(9)
431 show_and_set_in(10)
432
433 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
434 {
435 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
436 struct pc87360_data *data = pc87360_update_device(dev);
437 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
438 data->in_vref));
439 }
440 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
441 {
442 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
443 struct pc87360_data *data = pc87360_update_device(dev);
444 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
445 data->in_vref));
446 }
447 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
448 {
449 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
450 struct pc87360_data *data = pc87360_update_device(dev);
451 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
452 data->in_vref));
453 }
454 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
455 {
456 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
457 struct pc87360_data *data = pc87360_update_device(dev);
458 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
459 data->in_vref));
460 }
461 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
462 {
463 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
464 struct pc87360_data *data = pc87360_update_device(dev);
465 return sprintf(buf, "%u\n", data->in_status[attr->index]);
466 }
467 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
468 size_t count)
469 {
470 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
471 struct i2c_client *client = to_i2c_client(dev);
472 struct pc87360_data *data = i2c_get_clientdata(client);
473 long val = simple_strtol(buf, NULL, 10);
474
475 down(&data->update_lock);
476 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
477 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
478 data->in_min[attr->index]);
479 up(&data->update_lock);
480 return count;
481 }
482 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
483 size_t count)
484 {
485 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
486 struct i2c_client *client = to_i2c_client(dev);
487 struct pc87360_data *data = i2c_get_clientdata(client);
488 long val = simple_strtol(buf, NULL, 10);
489
490 down(&data->update_lock);
491 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
492 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
493 data->in_max[attr->index]);
494 up(&data->update_lock);
495 return count;
496 }
497 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
498 size_t count)
499 {
500 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
501 struct i2c_client *client = to_i2c_client(dev);
502 struct pc87360_data *data = i2c_get_clientdata(client);
503 long val = simple_strtol(buf, NULL, 10);
504
505 down(&data->update_lock);
506 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
507 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
508 data->in_crit[attr->index-11]);
509 up(&data->update_lock);
510 return count;
511 }
512
513 #define show_and_set_therm(offset) \
514 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
515 show_therm_input, NULL, 11+offset-4); \
516 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
517 show_therm_min, set_therm_min, 11+offset-4); \
518 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
519 show_therm_max, set_therm_max, 11+offset-4); \
520 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
521 show_therm_crit, set_therm_crit, 11+offset-4); \
522 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
523 show_therm_status, NULL, 11+offset-4);
524 show_and_set_therm(4)
525 show_and_set_therm(5)
526 show_and_set_therm(6)
527
528 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
529 {
530 struct pc87360_data *data = pc87360_update_device(dev);
531 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
532 }
533 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
534
535 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
536 {
537 struct pc87360_data *data = pc87360_update_device(dev);
538 return sprintf(buf, "%u\n", data->vrm);
539 }
540 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
541 {
542 struct i2c_client *client = to_i2c_client(dev);
543 struct pc87360_data *data = i2c_get_clientdata(client);
544 data->vrm = simple_strtoul(buf, NULL, 10);
545 return count;
546 }
547 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
548
549 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
550 {
551 struct pc87360_data *data = pc87360_update_device(dev);
552 return sprintf(buf, "%u\n", data->in_alarms);
553 }
554 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
555
556 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
557 {
558 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
559 struct pc87360_data *data = pc87360_update_device(dev);
560 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
561 }
562 static ssize_t show_temp_min(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_min[attr->index]));
567 }
568 static ssize_t show_temp_max(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_max[attr->index]));
573 }
574 static ssize_t show_temp_crit(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_crit[attr->index]));
579 }
580 static ssize_t show_temp_status(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", data->temp_status[attr->index]);
585 }
586 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
587 size_t count)
588 {
589 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
590 struct i2c_client *client = to_i2c_client(dev);
591 struct pc87360_data *data = i2c_get_clientdata(client);
592 long val = simple_strtol(buf, NULL, 10);
593
594 down(&data->update_lock);
595 data->temp_min[attr->index] = TEMP_TO_REG(val);
596 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
597 data->temp_min[attr->index]);
598 up(&data->update_lock);
599 return count;
600 }
601 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
602 size_t count)
603 {
604 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
605 struct i2c_client *client = to_i2c_client(dev);
606 struct pc87360_data *data = i2c_get_clientdata(client);
607 long val = simple_strtol(buf, NULL, 10);
608
609 down(&data->update_lock);
610 data->temp_max[attr->index] = TEMP_TO_REG(val);
611 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
612 data->temp_max[attr->index]);
613 up(&data->update_lock);
614 return count;
615 }
616 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
617 size_t count)
618 {
619 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
620 struct i2c_client *client = to_i2c_client(dev);
621 struct pc87360_data *data = i2c_get_clientdata(client);
622 long val = simple_strtol(buf, NULL, 10);
623
624 down(&data->update_lock);
625 data->temp_crit[attr->index] = TEMP_TO_REG(val);
626 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
627 data->temp_crit[attr->index]);
628 up(&data->update_lock);
629 return count;
630 }
631
632 #define show_and_set_temp(offset) \
633 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
634 show_temp_input, NULL, offset-1); \
635 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
636 show_temp_min, set_temp_min, offset-1); \
637 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
638 show_temp_max, set_temp_max, offset-1); \
639 static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
640 show_temp_crit, set_temp_crit, offset-1); \
641 static SENSOR_DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
642 show_temp_status, NULL, offset-1);
643 show_and_set_temp(1)
644 show_and_set_temp(2)
645 show_and_set_temp(3)
646
647 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
648 {
649 struct pc87360_data *data = pc87360_update_device(dev);
650 return sprintf(buf, "%u\n", data->temp_alarms);
651 }
652 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
653
654 /*
655 * Device detection, registration and update
656 */
657
658 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
659 {
660 u16 val;
661 int i;
662 int nrdev; /* logical device count */
663
664 /* No superio_enter */
665
666 /* Identify device */
667 val = superio_inb(sioaddr, DEVID);
668 switch (val) {
669 case 0xE1: /* PC87360 */
670 case 0xE8: /* PC87363 */
671 case 0xE4: /* PC87364 */
672 nrdev = 1;
673 break;
674 case 0xE5: /* PC87365 */
675 case 0xE9: /* PC87366 */
676 nrdev = 3;
677 break;
678 default:
679 superio_exit(sioaddr);
680 return -ENODEV;
681 }
682 /* Remember the device id */
683 *devid = val;
684
685 for (i = 0; i < nrdev; i++) {
686 /* select logical device */
687 superio_outb(sioaddr, DEV, logdev[i]);
688
689 val = superio_inb(sioaddr, ACT);
690 if (!(val & 0x01)) {
691 printk(KERN_INFO "pc87360: Device 0x%02x not "
692 "activated\n", logdev[i]);
693 continue;
694 }
695
696 val = (superio_inb(sioaddr, BASE) << 8)
697 | superio_inb(sioaddr, BASE + 1);
698 if (!val) {
699 printk(KERN_INFO "pc87360: Base address not set for "
700 "device 0x%02x\n", logdev[i]);
701 continue;
702 }
703
704 addresses[i] = val;
705
706 if (i==0) { /* Fans */
707 confreg[0] = superio_inb(sioaddr, 0xF0);
708 confreg[1] = superio_inb(sioaddr, 0xF1);
709
710 #ifdef DEBUG
711 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
712 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
713 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
714 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
715 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
716 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
717 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
718 "ctrl=%d inv=%d\n", confreg[1]&1,
719 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
720 #endif
721 } else if (i==1) { /* Voltages */
722 /* Are we using thermistors? */
723 if (*devid == 0xE9) { /* PC87366 */
724 /* These registers are not logical-device
725 specific, just that we won't need them if
726 we don't use the VLM device */
727 confreg[2] = superio_inb(sioaddr, 0x2B);
728 confreg[3] = superio_inb(sioaddr, 0x25);
729
730 if (confreg[2] & 0x40) {
731 printk(KERN_INFO "pc87360: Using "
732 "thermistors for temperature "
733 "monitoring\n");
734 }
735 if (confreg[3] & 0xE0) {
736 printk(KERN_INFO "pc87360: VID "
737 "inputs routed (mode %u)\n",
738 confreg[3] >> 5);
739 }
740 }
741 }
742 }
743
744 superio_exit(sioaddr);
745 return 0;
746 }
747
748 static int pc87360_detect(struct i2c_adapter *adapter)
749 {
750 int i;
751 struct i2c_client *new_client;
752 struct pc87360_data *data;
753 int err = 0;
754 const char *name = "pc87360";
755 int use_thermistors = 0;
756
757 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
758 return -ENOMEM;
759
760 new_client = &data->client;
761 i2c_set_clientdata(new_client, data);
762 new_client->addr = address;
763 init_MUTEX(&data->lock);
764 new_client->adapter = adapter;
765 new_client->driver = &pc87360_driver;
766 new_client->flags = 0;
767
768 data->fannr = 2;
769 data->innr = 0;
770 data->tempnr = 0;
771
772 switch (devid) {
773 case 0xe8:
774 name = "pc87363";
775 break;
776 case 0xe4:
777 name = "pc87364";
778 data->fannr = 3;
779 break;
780 case 0xe5:
781 name = "pc87365";
782 data->fannr = extra_isa[0] ? 3 : 0;
783 data->innr = extra_isa[1] ? 11 : 0;
784 data->tempnr = extra_isa[2] ? 2 : 0;
785 break;
786 case 0xe9:
787 name = "pc87366";
788 data->fannr = extra_isa[0] ? 3 : 0;
789 data->innr = extra_isa[1] ? 14 : 0;
790 data->tempnr = extra_isa[2] ? 3 : 0;
791 break;
792 }
793
794 strcpy(new_client->name, name);
795 data->valid = 0;
796 init_MUTEX(&data->update_lock);
797
798 for (i = 0; i < 3; i++) {
799 if (((data->address[i] = extra_isa[i]))
800 && !request_region(extra_isa[i], PC87360_EXTENT,
801 pc87360_driver.name)) {
802 dev_err(&new_client->dev, "Region 0x%x-0x%x already "
803 "in use!\n", extra_isa[i],
804 extra_isa[i]+PC87360_EXTENT-1);
805 for (i--; i >= 0; i--)
806 release_region(extra_isa[i], PC87360_EXTENT);
807 err = -EBUSY;
808 goto ERROR1;
809 }
810 }
811
812 /* Retrieve the fans configuration from Super-I/O space */
813 if (data->fannr)
814 data->fan_conf = confreg[0] | (confreg[1] << 8);
815
816 if ((err = i2c_attach_client(new_client)))
817 goto ERROR2;
818
819 /* Use the correct reference voltage
820 Unless both the VLM and the TMS logical devices agree to
821 use an external Vref, the internal one is used. */
822 if (data->innr) {
823 i = pc87360_read_value(data, LD_IN, NO_BANK,
824 PC87365_REG_IN_CONFIG);
825 if (data->tempnr) {
826 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
827 PC87365_REG_TEMP_CONFIG);
828 }
829 data->in_vref = (i&0x02) ? 3025 : 2966;
830 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
831 (i&0x02) ? "external" : "internal");
832
833 data->vid_conf = confreg[3];
834 data->vrm = 90;
835 }
836
837 /* Fan clock dividers may be needed before any data is read */
838 for (i = 0; i < data->fannr; i++) {
839 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
840 data->fan_status[i] = pc87360_read_value(data,
841 LD_FAN, NO_BANK,
842 PC87360_REG_FAN_STATUS(i));
843 }
844
845 if (init > 0) {
846 if (devid == 0xe9 && data->address[1]) /* PC87366 */
847 use_thermistors = confreg[2] & 0x40;
848
849 pc87360_init_client(new_client, use_thermistors);
850 }
851
852 /* Register sysfs hooks */
853 data->class_dev = hwmon_device_register(&new_client->dev);
854 if (IS_ERR(data->class_dev)) {
855 err = PTR_ERR(data->class_dev);
856 goto ERROR3;
857 }
858
859 if (data->innr) {
860 device_create_file(&new_client->dev, &sensor_dev_attr_in0_input.dev_attr);
861 device_create_file(&new_client->dev, &sensor_dev_attr_in1_input.dev_attr);
862 device_create_file(&new_client->dev, &sensor_dev_attr_in2_input.dev_attr);
863 device_create_file(&new_client->dev, &sensor_dev_attr_in3_input.dev_attr);
864 device_create_file(&new_client->dev, &sensor_dev_attr_in4_input.dev_attr);
865 device_create_file(&new_client->dev, &sensor_dev_attr_in5_input.dev_attr);
866 device_create_file(&new_client->dev, &sensor_dev_attr_in6_input.dev_attr);
867 device_create_file(&new_client->dev, &sensor_dev_attr_in7_input.dev_attr);
868 device_create_file(&new_client->dev, &sensor_dev_attr_in8_input.dev_attr);
869 device_create_file(&new_client->dev, &sensor_dev_attr_in9_input.dev_attr);
870 device_create_file(&new_client->dev, &sensor_dev_attr_in10_input.dev_attr);
871 device_create_file(&new_client->dev, &sensor_dev_attr_in0_min.dev_attr);
872 device_create_file(&new_client->dev, &sensor_dev_attr_in1_min.dev_attr);
873 device_create_file(&new_client->dev, &sensor_dev_attr_in2_min.dev_attr);
874 device_create_file(&new_client->dev, &sensor_dev_attr_in3_min.dev_attr);
875 device_create_file(&new_client->dev, &sensor_dev_attr_in4_min.dev_attr);
876 device_create_file(&new_client->dev, &sensor_dev_attr_in5_min.dev_attr);
877 device_create_file(&new_client->dev, &sensor_dev_attr_in6_min.dev_attr);
878 device_create_file(&new_client->dev, &sensor_dev_attr_in7_min.dev_attr);
879 device_create_file(&new_client->dev, &sensor_dev_attr_in8_min.dev_attr);
880 device_create_file(&new_client->dev, &sensor_dev_attr_in9_min.dev_attr);
881 device_create_file(&new_client->dev, &sensor_dev_attr_in10_min.dev_attr);
882 device_create_file(&new_client->dev, &sensor_dev_attr_in0_max.dev_attr);
883 device_create_file(&new_client->dev, &sensor_dev_attr_in1_max.dev_attr);
884 device_create_file(&new_client->dev, &sensor_dev_attr_in2_max.dev_attr);
885 device_create_file(&new_client->dev, &sensor_dev_attr_in3_max.dev_attr);
886 device_create_file(&new_client->dev, &sensor_dev_attr_in4_max.dev_attr);
887 device_create_file(&new_client->dev, &sensor_dev_attr_in5_max.dev_attr);
888 device_create_file(&new_client->dev, &sensor_dev_attr_in6_max.dev_attr);
889 device_create_file(&new_client->dev, &sensor_dev_attr_in7_max.dev_attr);
890 device_create_file(&new_client->dev, &sensor_dev_attr_in8_max.dev_attr);
891 device_create_file(&new_client->dev, &sensor_dev_attr_in9_max.dev_attr);
892 device_create_file(&new_client->dev, &sensor_dev_attr_in10_max.dev_attr);
893 device_create_file(&new_client->dev, &sensor_dev_attr_in0_status.dev_attr);
894 device_create_file(&new_client->dev, &sensor_dev_attr_in1_status.dev_attr);
895 device_create_file(&new_client->dev, &sensor_dev_attr_in2_status.dev_attr);
896 device_create_file(&new_client->dev, &sensor_dev_attr_in3_status.dev_attr);
897 device_create_file(&new_client->dev, &sensor_dev_attr_in4_status.dev_attr);
898 device_create_file(&new_client->dev, &sensor_dev_attr_in5_status.dev_attr);
899 device_create_file(&new_client->dev, &sensor_dev_attr_in6_status.dev_attr);
900 device_create_file(&new_client->dev, &sensor_dev_attr_in7_status.dev_attr);
901 device_create_file(&new_client->dev, &sensor_dev_attr_in8_status.dev_attr);
902 device_create_file(&new_client->dev, &sensor_dev_attr_in9_status.dev_attr);
903 device_create_file(&new_client->dev, &sensor_dev_attr_in10_status.dev_attr);
904
905 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
906 device_create_file(&new_client->dev, &dev_attr_vrm);
907 device_create_file(&new_client->dev, &dev_attr_alarms_in);
908 }
909
910 if (data->tempnr) {
911 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_input.dev_attr);
912 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_input.dev_attr);
913 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_min.dev_attr);
914 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_min.dev_attr);
915 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_max.dev_attr);
916 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_max.dev_attr);
917 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_crit.dev_attr);
918 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_crit.dev_attr);
919 device_create_file(&new_client->dev, &sensor_dev_attr_temp1_status.dev_attr);
920 device_create_file(&new_client->dev, &sensor_dev_attr_temp2_status.dev_attr);
921
922 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
923 }
924 if (data->tempnr == 3) {
925 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_input.dev_attr);
926 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_min.dev_attr);
927 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_max.dev_attr);
928 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_crit.dev_attr);
929 device_create_file(&new_client->dev, &sensor_dev_attr_temp3_status.dev_attr);
930 }
931 if (data->innr == 14) {
932 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_input.dev_attr);
933 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_input.dev_attr);
934 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_input.dev_attr);
935 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_min.dev_attr);
936 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_min.dev_attr);
937 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_min.dev_attr);
938 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_max.dev_attr);
939 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_max.dev_attr);
940 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_max.dev_attr);
941 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_crit.dev_attr);
942 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_crit.dev_attr);
943 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_crit.dev_attr);
944 device_create_file(&new_client->dev, &sensor_dev_attr_temp4_status.dev_attr);
945 device_create_file(&new_client->dev, &sensor_dev_attr_temp5_status.dev_attr);
946 device_create_file(&new_client->dev, &sensor_dev_attr_temp6_status.dev_attr);
947 }
948
949 if (data->fannr) {
950 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
951 device_create_file(&new_client->dev,
952 &sensor_dev_attr_fan1_input.dev_attr);
953 device_create_file(&new_client->dev,
954 &sensor_dev_attr_fan1_min.dev_attr);
955 device_create_file(&new_client->dev,
956 &sensor_dev_attr_fan1_div.dev_attr);
957 device_create_file(&new_client->dev,
958 &sensor_dev_attr_fan1_status.dev_attr);
959 }
960
961 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
962 device_create_file(&new_client->dev,
963 &sensor_dev_attr_fan2_input.dev_attr);
964 device_create_file(&new_client->dev,
965 &sensor_dev_attr_fan2_min.dev_attr);
966 device_create_file(&new_client->dev,
967 &sensor_dev_attr_fan2_div.dev_attr);
968 device_create_file(&new_client->dev,
969 &sensor_dev_attr_fan2_status.dev_attr);
970 }
971
972 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
973 device_create_file(&new_client->dev, &sensor_dev_attr_pwm1.dev_attr);
974 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
975 device_create_file(&new_client->dev, &sensor_dev_attr_pwm2.dev_attr);
976 }
977 if (data->fannr == 3) {
978 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
979 device_create_file(&new_client->dev,
980 &sensor_dev_attr_fan3_input.dev_attr);
981 device_create_file(&new_client->dev,
982 &sensor_dev_attr_fan3_min.dev_attr);
983 device_create_file(&new_client->dev,
984 &sensor_dev_attr_fan3_div.dev_attr);
985 device_create_file(&new_client->dev,
986 &sensor_dev_attr_fan3_status.dev_attr);
987 }
988
989 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
990 device_create_file(&new_client->dev, &sensor_dev_attr_pwm3.dev_attr);
991 }
992
993 return 0;
994
995 ERROR3:
996 i2c_detach_client(new_client);
997 ERROR2:
998 for (i = 0; i < 3; i++) {
999 if (data->address[i]) {
1000 release_region(data->address[i], PC87360_EXTENT);
1001 }
1002 }
1003 ERROR1:
1004 kfree(data);
1005 return err;
1006 }
1007
1008 static int pc87360_detach_client(struct i2c_client *client)
1009 {
1010 struct pc87360_data *data = i2c_get_clientdata(client);
1011 int i;
1012
1013 hwmon_device_unregister(data->class_dev);
1014
1015 if ((i = i2c_detach_client(client)))
1016 return i;
1017
1018 for (i = 0; i < 3; i++) {
1019 if (data->address[i]) {
1020 release_region(data->address[i], PC87360_EXTENT);
1021 }
1022 }
1023 kfree(data);
1024
1025 return 0;
1026 }
1027
1028 /* ldi is the logical device index
1029 bank is for voltages and temperatures only */
1030 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1031 u8 reg)
1032 {
1033 int res;
1034
1035 down(&(data->lock));
1036 if (bank != NO_BANK)
1037 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1038 res = inb_p(data->address[ldi] + reg);
1039 up(&(data->lock));
1040
1041 return res;
1042 }
1043
1044 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1045 u8 reg, u8 value)
1046 {
1047 down(&(data->lock));
1048 if (bank != NO_BANK)
1049 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1050 outb_p(value, data->address[ldi] + reg);
1051 up(&(data->lock));
1052 }
1053
1054 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1055 {
1056 struct pc87360_data *data = i2c_get_clientdata(client);
1057 int i, nr;
1058 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1059 const u8 init_temp[3] = { 2, 2, 1 };
1060 u8 reg;
1061
1062 if (init >= 2 && data->innr) {
1063 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1064 PC87365_REG_IN_CONVRATE);
1065 dev_info(&client->dev, "VLM conversion set to "
1066 "1s period, 160us delay\n");
1067 pc87360_write_value(data, LD_IN, NO_BANK,
1068 PC87365_REG_IN_CONVRATE,
1069 (reg & 0xC0) | 0x11);
1070 }
1071
1072 nr = data->innr < 11 ? data->innr : 11;
1073 for (i=0; i<nr; i++) {
1074 if (init >= init_in[i]) {
1075 /* Forcibly enable voltage channel */
1076 reg = pc87360_read_value(data, LD_IN, i,
1077 PC87365_REG_IN_STATUS);
1078 if (!(reg & 0x01)) {
1079 dev_dbg(&client->dev, "Forcibly "
1080 "enabling in%d\n", i);
1081 pc87360_write_value(data, LD_IN, i,
1082 PC87365_REG_IN_STATUS,
1083 (reg & 0x68) | 0x87);
1084 }
1085 }
1086 }
1087
1088 /* We can't blindly trust the Super-I/O space configuration bit,
1089 most BIOS won't set it properly */
1090 for (i=11; i<data->innr; i++) {
1091 reg = pc87360_read_value(data, LD_IN, i,
1092 PC87365_REG_TEMP_STATUS);
1093 use_thermistors = use_thermistors || (reg & 0x01);
1094 }
1095
1096 i = use_thermistors ? 2 : 0;
1097 for (; i<data->tempnr; i++) {
1098 if (init >= init_temp[i]) {
1099 /* Forcibly enable temperature channel */
1100 reg = pc87360_read_value(data, LD_TEMP, i,
1101 PC87365_REG_TEMP_STATUS);
1102 if (!(reg & 0x01)) {
1103 dev_dbg(&client->dev, "Forcibly "
1104 "enabling temp%d\n", i+1);
1105 pc87360_write_value(data, LD_TEMP, i,
1106 PC87365_REG_TEMP_STATUS,
1107 0xCF);
1108 }
1109 }
1110 }
1111
1112 if (use_thermistors) {
1113 for (i=11; i<data->innr; i++) {
1114 if (init >= init_in[i]) {
1115 /* The pin may already be used by thermal
1116 diodes */
1117 reg = pc87360_read_value(data, LD_TEMP,
1118 (i-11)/2, PC87365_REG_TEMP_STATUS);
1119 if (reg & 0x01) {
1120 dev_dbg(&client->dev, "Skipping "
1121 "temp%d, pin already in use "
1122 "by temp%d\n", i-7, (i-11)/2);
1123 continue;
1124 }
1125
1126 /* Forcibly enable thermistor channel */
1127 reg = pc87360_read_value(data, LD_IN, i,
1128 PC87365_REG_IN_STATUS);
1129 if (!(reg & 0x01)) {
1130 dev_dbg(&client->dev, "Forcibly "
1131 "enabling temp%d\n", i-7);
1132 pc87360_write_value(data, LD_IN, i,
1133 PC87365_REG_TEMP_STATUS,
1134 (reg & 0x60) | 0x8F);
1135 }
1136 }
1137 }
1138 }
1139
1140 if (data->innr) {
1141 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1142 PC87365_REG_IN_CONFIG);
1143 if (reg & 0x01) {
1144 dev_dbg(&client->dev, "Forcibly "
1145 "enabling monitoring (VLM)\n");
1146 pc87360_write_value(data, LD_IN, NO_BANK,
1147 PC87365_REG_IN_CONFIG,
1148 reg & 0xFE);
1149 }
1150 }
1151
1152 if (data->tempnr) {
1153 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1154 PC87365_REG_TEMP_CONFIG);
1155 if (reg & 0x01) {
1156 dev_dbg(&client->dev, "Forcibly enabling "
1157 "monitoring (TMS)\n");
1158 pc87360_write_value(data, LD_TEMP, NO_BANK,
1159 PC87365_REG_TEMP_CONFIG,
1160 reg & 0xFE);
1161 }
1162
1163 if (init >= 2) {
1164 /* Chip config as documented by National Semi. */
1165 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1166 /* We voluntarily omit the bank here, in case the
1167 sequence itself matters. It shouldn't be a problem,
1168 since nobody else is supposed to access the
1169 device at that point. */
1170 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1171 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1172 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1173 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1174 }
1175 }
1176 }
1177
1178 static void pc87360_autodiv(struct i2c_client *client, int nr)
1179 {
1180 struct pc87360_data *data = i2c_get_clientdata(client);
1181 u8 old_min = data->fan_min[nr];
1182
1183 /* Increase clock divider if needed and possible */
1184 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1185 || (data->fan[nr] >= 224)) { /* next to overflow */
1186 if ((data->fan_status[nr] & 0x60) != 0x60) {
1187 data->fan_status[nr] += 0x20;
1188 data->fan_min[nr] >>= 1;
1189 data->fan[nr] >>= 1;
1190 dev_dbg(&client->dev, "Increasing "
1191 "clock divider to %d for fan %d\n",
1192 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1193 }
1194 } else {
1195 /* Decrease clock divider if possible */
1196 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1197 && data->fan[nr] < 85 /* bad accuracy */
1198 && (data->fan_status[nr] & 0x60) != 0x00) {
1199 data->fan_status[nr] -= 0x20;
1200 data->fan_min[nr] <<= 1;
1201 data->fan[nr] <<= 1;
1202 dev_dbg(&client->dev, "Decreasing "
1203 "clock divider to %d for fan %d\n",
1204 FAN_DIV_FROM_REG(data->fan_status[nr]),
1205 nr+1);
1206 }
1207 }
1208
1209 /* Write new fan min if it changed */
1210 if (old_min != data->fan_min[nr]) {
1211 pc87360_write_value(data, LD_FAN, NO_BANK,
1212 PC87360_REG_FAN_MIN(nr),
1213 data->fan_min[nr]);
1214 }
1215 }
1216
1217 static struct pc87360_data *pc87360_update_device(struct device *dev)
1218 {
1219 struct i2c_client *client = to_i2c_client(dev);
1220 struct pc87360_data *data = i2c_get_clientdata(client);
1221 u8 i;
1222
1223 down(&data->update_lock);
1224
1225 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1226 dev_dbg(&client->dev, "Data update\n");
1227
1228 /* Fans */
1229 for (i = 0; i < data->fannr; i++) {
1230 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1231 data->fan_status[i] =
1232 pc87360_read_value(data, LD_FAN,
1233 NO_BANK, PC87360_REG_FAN_STATUS(i));
1234 data->fan[i] = pc87360_read_value(data, LD_FAN,
1235 NO_BANK, PC87360_REG_FAN(i));
1236 data->fan_min[i] = pc87360_read_value(data,
1237 LD_FAN, NO_BANK,
1238 PC87360_REG_FAN_MIN(i));
1239 /* Change clock divider if needed */
1240 pc87360_autodiv(client, i);
1241 /* Clear bits and write new divider */
1242 pc87360_write_value(data, LD_FAN, NO_BANK,
1243 PC87360_REG_FAN_STATUS(i),
1244 data->fan_status[i]);
1245 }
1246 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1247 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1248 NO_BANK, PC87360_REG_PWM(i));
1249 }
1250
1251 /* Voltages */
1252 for (i = 0; i < data->innr; i++) {
1253 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1254 PC87365_REG_IN_STATUS);
1255 /* Clear bits */
1256 pc87360_write_value(data, LD_IN, i,
1257 PC87365_REG_IN_STATUS,
1258 data->in_status[i]);
1259 if ((data->in_status[i] & 0x81) == 0x81) {
1260 data->in[i] = pc87360_read_value(data, LD_IN,
1261 i, PC87365_REG_IN);
1262 }
1263 if (data->in_status[i] & 0x01) {
1264 data->in_min[i] = pc87360_read_value(data,
1265 LD_IN, i,
1266 PC87365_REG_IN_MIN);
1267 data->in_max[i] = pc87360_read_value(data,
1268 LD_IN, i,
1269 PC87365_REG_IN_MAX);
1270 if (i >= 11)
1271 data->in_crit[i-11] =
1272 pc87360_read_value(data, LD_IN,
1273 i, PC87365_REG_TEMP_CRIT);
1274 }
1275 }
1276 if (data->innr) {
1277 data->in_alarms = pc87360_read_value(data, LD_IN,
1278 NO_BANK, PC87365_REG_IN_ALARMS1)
1279 | ((pc87360_read_value(data, LD_IN,
1280 NO_BANK, PC87365_REG_IN_ALARMS2)
1281 & 0x07) << 8);
1282 data->vid = (data->vid_conf & 0xE0) ?
1283 pc87360_read_value(data, LD_IN,
1284 NO_BANK, PC87365_REG_VID) : 0x1F;
1285 }
1286
1287 /* Temperatures */
1288 for (i = 0; i < data->tempnr; i++) {
1289 data->temp_status[i] = pc87360_read_value(data,
1290 LD_TEMP, i,
1291 PC87365_REG_TEMP_STATUS);
1292 /* Clear bits */
1293 pc87360_write_value(data, LD_TEMP, i,
1294 PC87365_REG_TEMP_STATUS,
1295 data->temp_status[i]);
1296 if ((data->temp_status[i] & 0x81) == 0x81) {
1297 data->temp[i] = pc87360_read_value(data,
1298 LD_TEMP, i,
1299 PC87365_REG_TEMP);
1300 }
1301 if (data->temp_status[i] & 0x01) {
1302 data->temp_min[i] = pc87360_read_value(data,
1303 LD_TEMP, i,
1304 PC87365_REG_TEMP_MIN);
1305 data->temp_max[i] = pc87360_read_value(data,
1306 LD_TEMP, i,
1307 PC87365_REG_TEMP_MAX);
1308 data->temp_crit[i] = pc87360_read_value(data,
1309 LD_TEMP, i,
1310 PC87365_REG_TEMP_CRIT);
1311 }
1312 }
1313 if (data->tempnr) {
1314 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1315 NO_BANK, PC87365_REG_TEMP_ALARMS)
1316 & 0x3F;
1317 }
1318
1319 data->last_updated = jiffies;
1320 data->valid = 1;
1321 }
1322
1323 up(&data->update_lock);
1324
1325 return data;
1326 }
1327
1328 static int __init pc87360_init(void)
1329 {
1330 int i;
1331
1332 if (pc87360_find(0x2e, &devid, extra_isa)
1333 && pc87360_find(0x4e, &devid, extra_isa)) {
1334 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1335 "module not inserted.\n");
1336 return -ENODEV;
1337 }
1338
1339 /* Arbitrarily pick one of the addresses */
1340 for (i = 0; i < 3; i++) {
1341 if (extra_isa[i] != 0x0000) {
1342 address = extra_isa[i];
1343 break;
1344 }
1345 }
1346
1347 if (address == 0x0000) {
1348 printk(KERN_WARNING "pc87360: No active logical device, "
1349 "module not inserted.\n");
1350 return -ENODEV;
1351 }
1352
1353 return i2c_isa_add_driver(&pc87360_driver);
1354 }
1355
1356 static void __exit pc87360_exit(void)
1357 {
1358 i2c_isa_del_driver(&pc87360_driver);
1359 }
1360
1361
1362 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1363 MODULE_DESCRIPTION("PC8736x hardware monitor");
1364 MODULE_LICENSE("GPL");
1365
1366 module_init(pc87360_init);
1367 module_exit(pc87360_exit);
x86 "subsystem" repository