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Linux v2.6.13
[linux-2.6/next.git] / drivers / hwmon / pc87360.c
blobfa4032d53b790b3e08dd6fdf6d730e4258ae05e5
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-sensor.h>
42 #include <linux/i2c-vid.h>
43 #include <asm/io.h>
44
45 static unsigned short normal_i2c[] = { I2C_CLIENT_END };
46 static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
47 static struct i2c_force_data forces[] = {{ NULL }};
48 static u8 devid;
49 static unsigned int extra_isa[3];
50 static u8 confreg[4];
51
52 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
53 static struct i2c_address_data addr_data = {
54 .normal_i2c = normal_i2c,
55 .normal_isa = normal_isa,
56 .forces = forces,
57 };
58
59 static int init = 1;
60 module_param(init, int, 0);
61 MODULE_PARM_DESC(init,
62 "Chip initialization level:\n"
63 " 0: None\n"
64 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
65 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
66 " 3: Forcibly enable all voltage and temperature channels, including in9");
67
68 /*
69 * Super-I/O registers and operations
70 */
71
72 #define DEV 0x07 /* Register: Logical device select */
73 #define DEVID 0x20 /* Register: Device ID */
74 #define ACT 0x30 /* Register: Device activation */
75 #define BASE 0x60 /* Register: Base address */
76
77 #define FSCM 0x09 /* Logical device: fans */
78 #define VLM 0x0d /* Logical device: voltages */
79 #define TMS 0x0e /* Logical device: temperatures */
80 static const u8 logdev[3] = { FSCM, VLM, TMS };
81
82 #define LD_FAN 0
83 #define LD_IN 1
84 #define LD_TEMP 2
85
86 static inline void superio_outb(int sioaddr, int reg, int val)
87 {
88 outb(reg, sioaddr);
89 outb(val, sioaddr+1);
90 }
91
92 static inline int superio_inb(int sioaddr, int reg)
93 {
94 outb(reg, sioaddr);
95 return inb(sioaddr+1);
96 }
97
98 static inline void superio_exit(int sioaddr)
99 {
100 outb(0x02, sioaddr);
101 outb(0x02, sioaddr+1);
102 }
103
104 /*
105 * Logical devices
106 */
107
108 #define PC87360_EXTENT 0x10
109 #define PC87365_REG_BANK 0x09
110 #define NO_BANK 0xff
111
112 /*
113 * Fan registers and conversions
114 */
115
116 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
117 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
118 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
119 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
120 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
121 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
122
123 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
124 480000 / ((val)*(div)))
125 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
126 480000 / ((val)*(div)))
127 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
128 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
129
130 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
131 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
132 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
133
134 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
135 static inline u8 PWM_TO_REG(int val, int inv)
136 {
137 if (inv)
138 val = 255 - val;
139 if (val < 0)
140 return 0;
141 if (val > 255)
142 return 255;
143 return val;
144 }
145
146 /*
147 * Voltage registers and conversions
148 */
149
150 #define PC87365_REG_IN_CONVRATE 0x07
151 #define PC87365_REG_IN_CONFIG 0x08
152 #define PC87365_REG_IN 0x0B
153 #define PC87365_REG_IN_MIN 0x0D
154 #define PC87365_REG_IN_MAX 0x0C
155 #define PC87365_REG_IN_STATUS 0x0A
156 #define PC87365_REG_IN_ALARMS1 0x00
157 #define PC87365_REG_IN_ALARMS2 0x01
158 #define PC87365_REG_VID 0x06
159
160 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
161 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
162 (val)*256 >= (ref)*255 ? 255: \
163 ((val) * 256 + (ref)/2) / (ref))
164
165 /*
166 * Temperature registers and conversions
167 */
168
169 #define PC87365_REG_TEMP_CONFIG 0x08
170 #define PC87365_REG_TEMP 0x0B
171 #define PC87365_REG_TEMP_MIN 0x0D
172 #define PC87365_REG_TEMP_MAX 0x0C
173 #define PC87365_REG_TEMP_CRIT 0x0E
174 #define PC87365_REG_TEMP_STATUS 0x0A
175 #define PC87365_REG_TEMP_ALARMS 0x00
176
177 #define TEMP_FROM_REG(val) ((val) * 1000)
178 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
179 (val) > 127000 ? 127 : \
180 (val) < 0 ? ((val) - 500) / 1000 : \
181 ((val) + 500) / 1000)
182
183 /*
184 * Client data (each client gets its own)
185 */
186
187 struct pc87360_data {
188 struct i2c_client client;
189 struct semaphore lock;
190 struct semaphore update_lock;
191 char valid; /* !=0 if following fields are valid */
192 unsigned long last_updated; /* In jiffies */
193
194 int address[3];
195
196 u8 fannr, innr, tempnr;
197
198 u8 fan[3]; /* Register value */
199 u8 fan_min[3]; /* Register value */
200 u8 fan_status[3]; /* Register value */
201 u8 pwm[3]; /* Register value */
202 u16 fan_conf; /* Configuration register values, combined */
203
204 u16 in_vref; /* 1 mV/bit */
205 u8 in[14]; /* Register value */
206 u8 in_min[14]; /* Register value */
207 u8 in_max[14]; /* Register value */
208 u8 in_crit[3]; /* Register value */
209 u8 in_status[14]; /* Register value */
210 u16 in_alarms; /* Register values, combined, masked */
211 u8 vid_conf; /* Configuration register value */
212 u8 vrm;
213 u8 vid; /* Register value */
214
215 s8 temp[3]; /* Register value */
216 s8 temp_min[3]; /* Register value */
217 s8 temp_max[3]; /* Register value */
218 s8 temp_crit[3]; /* Register value */
219 u8 temp_status[3]; /* Register value */
220 u8 temp_alarms; /* Register value, masked */
221 };
222
223 /*
224 * Functions declaration
225 */
226
227 static int pc87360_attach_adapter(struct i2c_adapter *adapter);
228 static int pc87360_detect(struct i2c_adapter *adapter, int address, int kind);
229 static int pc87360_detach_client(struct i2c_client *client);
230
231 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
232 u8 reg);
233 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
234 u8 reg, u8 value);
235 static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
236 static struct pc87360_data *pc87360_update_device(struct device *dev);
237
238 /*
239 * Driver data (common to all clients)
240 */
241
242 static struct i2c_driver pc87360_driver = {
243 .owner = THIS_MODULE,
244 .name = "pc87360",
245 .flags = I2C_DF_NOTIFY,
246 .attach_adapter = pc87360_attach_adapter,
247 .detach_client = pc87360_detach_client,
248 };
249
250 /*
251 * Sysfs stuff
252 */
253
254 static ssize_t set_fan_min(struct device *dev, const char *buf,
255 size_t count, int nr)
256 {
257 struct i2c_client *client = to_i2c_client(dev);
258 struct pc87360_data *data = i2c_get_clientdata(client);
259 long fan_min = simple_strtol(buf, NULL, 10);
260
261 down(&data->update_lock);
262 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[nr]));
263
264 /* If it wouldn't fit, change clock divisor */
265 while (fan_min > 255
266 && (data->fan_status[nr] & 0x60) != 0x60) {
267 fan_min >>= 1;
268 data->fan[nr] >>= 1;
269 data->fan_status[nr] += 0x20;
270 }
271 data->fan_min[nr] = fan_min > 255 ? 255 : fan_min;
272 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr),
273 data->fan_min[nr]);
274
275 /* Write new divider, preserve alarm bits */
276 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(nr),
277 data->fan_status[nr] & 0xF9);
278 up(&data->update_lock);
279
280 return count;
281 }
282
283 #define show_and_set_fan(offset) \
284 static ssize_t show_fan##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
285 { \
286 struct pc87360_data *data = pc87360_update_device(dev); \
287 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[offset-1], \
288 FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
289 } \
290 static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
291 { \
292 struct pc87360_data *data = pc87360_update_device(dev); \
293 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[offset-1], \
294 FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
295 } \
296 static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \
297 { \
298 struct pc87360_data *data = pc87360_update_device(dev); \
299 return sprintf(buf, "%u\n", \
300 FAN_DIV_FROM_REG(data->fan_status[offset-1])); \
301 } \
302 static ssize_t show_fan##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
303 { \
304 struct pc87360_data *data = pc87360_update_device(dev); \
305 return sprintf(buf, "%u\n", \
306 FAN_STATUS_FROM_REG(data->fan_status[offset-1])); \
307 } \
308 static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
309 size_t count) \
310 { \
311 return set_fan_min(dev, buf, count, offset-1); \
312 } \
313 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
314 show_fan##offset##_input, NULL); \
315 static DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
316 show_fan##offset##_min, set_fan##offset##_min); \
317 static DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
318 show_fan##offset##_div, NULL); \
319 static DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
320 show_fan##offset##_status, NULL);
321 show_and_set_fan(1)
322 show_and_set_fan(2)
323 show_and_set_fan(3)
324
325 #define show_and_set_pwm(offset) \
326 static ssize_t show_pwm##offset(struct device *dev, struct device_attribute *attr, char *buf) \
327 { \
328 struct pc87360_data *data = pc87360_update_device(dev); \
329 return sprintf(buf, "%u\n", \
330 PWM_FROM_REG(data->pwm[offset-1], \
331 FAN_CONFIG_INVERT(data->fan_conf, \
332 offset-1))); \
333 } \
334 static ssize_t set_pwm##offset(struct device *dev, struct device_attribute *attr, const char *buf, \
335 size_t count) \
336 { \
337 struct i2c_client *client = to_i2c_client(dev); \
338 struct pc87360_data *data = i2c_get_clientdata(client); \
339 long val = simple_strtol(buf, NULL, 10); \
340 \
341 down(&data->update_lock); \
342 data->pwm[offset-1] = PWM_TO_REG(val, \
343 FAN_CONFIG_INVERT(data->fan_conf, offset-1)); \
344 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(offset-1), \
345 data->pwm[offset-1]); \
346 up(&data->update_lock); \
347 return count; \
348 } \
349 static DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
350 show_pwm##offset, set_pwm##offset);
351 show_and_set_pwm(1)
352 show_and_set_pwm(2)
353 show_and_set_pwm(3)
354
355 #define show_and_set_in(offset) \
356 static ssize_t show_in##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
357 { \
358 struct pc87360_data *data = pc87360_update_device(dev); \
359 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
360 data->in_vref)); \
361 } \
362 static ssize_t show_in##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
363 { \
364 struct pc87360_data *data = pc87360_update_device(dev); \
365 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
366 data->in_vref)); \
367 } \
368 static ssize_t show_in##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
369 { \
370 struct pc87360_data *data = pc87360_update_device(dev); \
371 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
372 data->in_vref)); \
373 } \
374 static ssize_t show_in##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
375 { \
376 struct pc87360_data *data = pc87360_update_device(dev); \
377 return sprintf(buf, "%u\n", data->in_status[offset]); \
378 } \
379 static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
380 size_t count) \
381 { \
382 struct i2c_client *client = to_i2c_client(dev); \
383 struct pc87360_data *data = i2c_get_clientdata(client); \
384 long val = simple_strtol(buf, NULL, 10); \
385 \
386 down(&data->update_lock); \
387 data->in_min[offset] = IN_TO_REG(val, data->in_vref); \
388 pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MIN, \
389 data->in_min[offset]); \
390 up(&data->update_lock); \
391 return count; \
392 } \
393 static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
394 size_t count) \
395 { \
396 struct i2c_client *client = to_i2c_client(dev); \
397 struct pc87360_data *data = i2c_get_clientdata(client); \
398 long val = simple_strtol(buf, NULL, 10); \
399 \
400 down(&data->update_lock); \
401 data->in_max[offset] = IN_TO_REG(val, \
402 data->in_vref); \
403 pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MAX, \
404 data->in_max[offset]); \
405 up(&data->update_lock); \
406 return count; \
407 } \
408 static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
409 show_in##offset##_input, NULL); \
410 static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
411 show_in##offset##_min, set_in##offset##_min); \
412 static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
413 show_in##offset##_max, set_in##offset##_max); \
414 static DEVICE_ATTR(in##offset##_status, S_IRUGO, \
415 show_in##offset##_status, NULL);
416 show_and_set_in(0)
417 show_and_set_in(1)
418 show_and_set_in(2)
419 show_and_set_in(3)
420 show_and_set_in(4)
421 show_and_set_in(5)
422 show_and_set_in(6)
423 show_and_set_in(7)
424 show_and_set_in(8)
425 show_and_set_in(9)
426 show_and_set_in(10)
427
428 #define show_and_set_therm(offset) \
429 static ssize_t show_temp##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
430 { \
431 struct pc87360_data *data = pc87360_update_device(dev); \
432 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset+7], \
433 data->in_vref)); \
434 } \
435 static ssize_t show_temp##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
436 { \
437 struct pc87360_data *data = pc87360_update_device(dev); \
438 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset+7], \
439 data->in_vref)); \
440 } \
441 static ssize_t show_temp##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
442 { \
443 struct pc87360_data *data = pc87360_update_device(dev); \
444 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset+7], \
445 data->in_vref)); \
446 } \
447 static ssize_t show_temp##offset##_crit(struct device *dev, struct device_attribute *attr, char *buf) \
448 { \
449 struct pc87360_data *data = pc87360_update_device(dev); \
450 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[offset-4], \
451 data->in_vref)); \
452 } \
453 static ssize_t show_temp##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
454 { \
455 struct pc87360_data *data = pc87360_update_device(dev); \
456 return sprintf(buf, "%u\n", data->in_status[offset+7]); \
457 } \
458 static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
459 size_t count) \
460 { \
461 struct i2c_client *client = to_i2c_client(dev); \
462 struct pc87360_data *data = i2c_get_clientdata(client); \
463 long val = simple_strtol(buf, NULL, 10); \
464 \
465 down(&data->update_lock); \
466 data->in_min[offset+7] = IN_TO_REG(val, data->in_vref); \
467 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MIN, \
468 data->in_min[offset+7]); \
469 up(&data->update_lock); \
470 return count; \
471 } \
472 static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
473 size_t count) \
474 { \
475 struct i2c_client *client = to_i2c_client(dev); \
476 struct pc87360_data *data = i2c_get_clientdata(client); \
477 long val = simple_strtol(buf, NULL, 10); \
478 \
479 down(&data->update_lock); \
480 data->in_max[offset+7] = IN_TO_REG(val, data->in_vref); \
481 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MAX, \
482 data->in_max[offset+7]); \
483 up(&data->update_lock); \
484 return count; \
485 } \
486 static ssize_t set_temp##offset##_crit(struct device *dev, struct device_attribute *attr, const char *buf, \
487 size_t count) \
488 { \
489 struct i2c_client *client = to_i2c_client(dev); \
490 struct pc87360_data *data = i2c_get_clientdata(client); \
491 long val = simple_strtol(buf, NULL, 10); \
492 \
493 down(&data->update_lock); \
494 data->in_crit[offset-4] = IN_TO_REG(val, data->in_vref); \
495 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_CRIT, \
496 data->in_crit[offset-4]); \
497 up(&data->update_lock); \
498 return count; \
499 } \
500 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
501 show_temp##offset##_input, NULL); \
502 static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
503 show_temp##offset##_min, set_temp##offset##_min); \
504 static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
505 show_temp##offset##_max, set_temp##offset##_max); \
506 static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
507 show_temp##offset##_crit, set_temp##offset##_crit); \
508 static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
509 show_temp##offset##_status, NULL);
510 show_and_set_therm(4)
511 show_and_set_therm(5)
512 show_and_set_therm(6)
513
514 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
515 {
516 struct pc87360_data *data = pc87360_update_device(dev);
517 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
518 }
519 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
520
521 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
522 {
523 struct pc87360_data *data = pc87360_update_device(dev);
524 return sprintf(buf, "%u\n", data->vrm);
525 }
526 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
527 {
528 struct i2c_client *client = to_i2c_client(dev);
529 struct pc87360_data *data = i2c_get_clientdata(client);
530 data->vrm = simple_strtoul(buf, NULL, 10);
531 return count;
532 }
533 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
534
535 static ssize_t show_in_alarms(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->in_alarms);
539 }
540 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
541
542 #define show_and_set_temp(offset) \
543 static ssize_t show_temp##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
544 { \
545 struct pc87360_data *data = pc87360_update_device(dev); \
546 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
547 } \
548 static ssize_t show_temp##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
549 { \
550 struct pc87360_data *data = pc87360_update_device(dev); \
551 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
552 } \
553 static ssize_t show_temp##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
554 { \
555 struct pc87360_data *data = pc87360_update_device(dev); \
556 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
557 }\
558 static ssize_t show_temp##offset##_crit(struct device *dev, struct device_attribute *attr, char *buf) \
559 { \
560 struct pc87360_data *data = pc87360_update_device(dev); \
561 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[offset-1])); \
562 }\
563 static ssize_t show_temp##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
564 { \
565 struct pc87360_data *data = pc87360_update_device(dev); \
566 return sprintf(buf, "%d\n", data->temp_status[offset-1]); \
567 }\
568 static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
569 size_t count) \
570 { \
571 struct i2c_client *client = to_i2c_client(dev); \
572 struct pc87360_data *data = i2c_get_clientdata(client); \
573 long val = simple_strtol(buf, NULL, 10); \
574 \
575 down(&data->update_lock); \
576 data->temp_min[offset-1] = TEMP_TO_REG(val); \
577 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MIN, \
578 data->temp_min[offset-1]); \
579 up(&data->update_lock); \
580 return count; \
581 } \
582 static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
583 size_t count) \
584 { \
585 struct i2c_client *client = to_i2c_client(dev); \
586 struct pc87360_data *data = i2c_get_clientdata(client); \
587 long val = simple_strtol(buf, NULL, 10); \
588 \
589 down(&data->update_lock); \
590 data->temp_max[offset-1] = TEMP_TO_REG(val); \
591 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MAX, \
592 data->temp_max[offset-1]); \
593 up(&data->update_lock); \
594 return count; \
595 } \
596 static ssize_t set_temp##offset##_crit(struct device *dev, struct device_attribute *attr, const char *buf, \
597 size_t count) \
598 { \
599 struct i2c_client *client = to_i2c_client(dev); \
600 struct pc87360_data *data = i2c_get_clientdata(client); \
601 long val = simple_strtol(buf, NULL, 10); \
602 \
603 down(&data->update_lock); \
604 data->temp_crit[offset-1] = TEMP_TO_REG(val); \
605 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_CRIT, \
606 data->temp_crit[offset-1]); \
607 up(&data->update_lock); \
608 return count; \
609 } \
610 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
611 show_temp##offset##_input, NULL); \
612 static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
613 show_temp##offset##_min, set_temp##offset##_min); \
614 static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
615 show_temp##offset##_max, set_temp##offset##_max); \
616 static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
617 show_temp##offset##_crit, set_temp##offset##_crit); \
618 static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
619 show_temp##offset##_status, NULL);
620 show_and_set_temp(1)
621 show_and_set_temp(2)
622 show_and_set_temp(3)
623
624 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
625 {
626 struct pc87360_data *data = pc87360_update_device(dev);
627 return sprintf(buf, "%u\n", data->temp_alarms);
628 }
629 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
630
631 /*
632 * Device detection, registration and update
633 */
634
635 static int pc87360_attach_adapter(struct i2c_adapter *adapter)
636 {
637 return i2c_detect(adapter, &addr_data, pc87360_detect);
638 }
639
640 static int pc87360_find(int sioaddr, u8 *devid, int *address)
641 {
642 u16 val;
643 int i;
644 int nrdev; /* logical device count */
645
646 /* No superio_enter */
647
648 /* Identify device */
649 val = superio_inb(sioaddr, DEVID);
650 switch (val) {
651 case 0xE1: /* PC87360 */
652 case 0xE8: /* PC87363 */
653 case 0xE4: /* PC87364 */
654 nrdev = 1;
655 break;
656 case 0xE5: /* PC87365 */
657 case 0xE9: /* PC87366 */
658 nrdev = 3;
659 break;
660 default:
661 superio_exit(sioaddr);
662 return -ENODEV;
663 }
664 /* Remember the device id */
665 *devid = val;
666
667 for (i = 0; i < nrdev; i++) {
668 /* select logical device */
669 superio_outb(sioaddr, DEV, logdev[i]);
670
671 val = superio_inb(sioaddr, ACT);
672 if (!(val & 0x01)) {
673 printk(KERN_INFO "pc87360: Device 0x%02x not "
674 "activated\n", logdev[i]);
675 continue;
676 }
677
678 val = (superio_inb(sioaddr, BASE) << 8)
679 | superio_inb(sioaddr, BASE + 1);
680 if (!val) {
681 printk(KERN_INFO "pc87360: Base address not set for "
682 "device 0x%02x\n", logdev[i]);
683 continue;
684 }
685
686 address[i] = val;
687
688 if (i==0) { /* Fans */
689 confreg[0] = superio_inb(sioaddr, 0xF0);
690 confreg[1] = superio_inb(sioaddr, 0xF1);
691
692 #ifdef DEBUG
693 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
694 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
695 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
696 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
697 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
698 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
699 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
700 "ctrl=%d inv=%d\n", confreg[1]&1,
701 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
702 #endif
703 } else if (i==1) { /* Voltages */
704 /* Are we using thermistors? */
705 if (*devid == 0xE9) { /* PC87366 */
706 /* These registers are not logical-device
707 specific, just that we won't need them if
708 we don't use the VLM device */
709 confreg[2] = superio_inb(sioaddr, 0x2B);
710 confreg[3] = superio_inb(sioaddr, 0x25);
711
712 if (confreg[2] & 0x40) {
713 printk(KERN_INFO "pc87360: Using "
714 "thermistors for temperature "
715 "monitoring\n");
716 }
717 if (confreg[3] & 0xE0) {
718 printk(KERN_INFO "pc87360: VID "
719 "inputs routed (mode %u)\n",
720 confreg[3] >> 5);
721 }
722 }
723 }
724 }
725
726 superio_exit(sioaddr);
727 return 0;
728 }
729
730 /* We don't really care about the address.
731 Read from extra_isa instead. */
732 int pc87360_detect(struct i2c_adapter *adapter, int address, int kind)
733 {
734 int i;
735 struct i2c_client *new_client;
736 struct pc87360_data *data;
737 int err = 0;
738 const char *name = "pc87360";
739 int use_thermistors = 0;
740
741 if (!i2c_is_isa_adapter(adapter))
742 return -ENODEV;
743
744 if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
745 return -ENOMEM;
746 memset(data, 0x00, sizeof(struct pc87360_data));
747
748 new_client = &data->client;
749 i2c_set_clientdata(new_client, data);
750 new_client->addr = address;
751 init_MUTEX(&data->lock);
752 new_client->adapter = adapter;
753 new_client->driver = &pc87360_driver;
754 new_client->flags = 0;
755
756 data->fannr = 2;
757 data->innr = 0;
758 data->tempnr = 0;
759
760 switch (devid) {
761 case 0xe8:
762 name = "pc87363";
763 break;
764 case 0xe4:
765 name = "pc87364";
766 data->fannr = 3;
767 break;
768 case 0xe5:
769 name = "pc87365";
770 data->fannr = extra_isa[0] ? 3 : 0;
771 data->innr = extra_isa[1] ? 11 : 0;
772 data->tempnr = extra_isa[2] ? 2 : 0;
773 break;
774 case 0xe9:
775 name = "pc87366";
776 data->fannr = extra_isa[0] ? 3 : 0;
777 data->innr = extra_isa[1] ? 14 : 0;
778 data->tempnr = extra_isa[2] ? 3 : 0;
779 break;
780 }
781
782 strcpy(new_client->name, name);
783 data->valid = 0;
784 init_MUTEX(&data->update_lock);
785
786 for (i = 0; i < 3; i++) {
787 if (((data->address[i] = extra_isa[i]))
788 && !request_region(extra_isa[i], PC87360_EXTENT,
789 pc87360_driver.name)) {
790 dev_err(&new_client->dev, "Region 0x%x-0x%x already "
791 "in use!\n", extra_isa[i],
792 extra_isa[i]+PC87360_EXTENT-1);
793 for (i--; i >= 0; i--)
794 release_region(extra_isa[i], PC87360_EXTENT);
795 err = -EBUSY;
796 goto ERROR1;
797 }
798 }
799
800 /* Retrieve the fans configuration from Super-I/O space */
801 if (data->fannr)
802 data->fan_conf = confreg[0] | (confreg[1] << 8);
803
804 if ((err = i2c_attach_client(new_client)))
805 goto ERROR2;
806
807 /* Use the correct reference voltage
808 Unless both the VLM and the TMS logical devices agree to
809 use an external Vref, the internal one is used. */
810 if (data->innr) {
811 i = pc87360_read_value(data, LD_IN, NO_BANK,
812 PC87365_REG_IN_CONFIG);
813 if (data->tempnr) {
814 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
815 PC87365_REG_TEMP_CONFIG);
816 }
817 data->in_vref = (i&0x02) ? 3025 : 2966;
818 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
819 (i&0x02) ? "external" : "internal");
820
821 data->vid_conf = confreg[3];
822 data->vrm = 90;
823 }
824
825 /* Fan clock dividers may be needed before any data is read */
826 for (i = 0; i < data->fannr; i++) {
827 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
828 data->fan_status[i] = pc87360_read_value(data,
829 LD_FAN, NO_BANK,
830 PC87360_REG_FAN_STATUS(i));
831 }
832
833 if (init > 0) {
834 if (devid == 0xe9 && data->address[1]) /* PC87366 */
835 use_thermistors = confreg[2] & 0x40;
836
837 pc87360_init_client(new_client, use_thermistors);
838 }
839
840 /* Register sysfs hooks */
841 if (data->innr) {
842 device_create_file(&new_client->dev, &dev_attr_in0_input);
843 device_create_file(&new_client->dev, &dev_attr_in1_input);
844 device_create_file(&new_client->dev, &dev_attr_in2_input);
845 device_create_file(&new_client->dev, &dev_attr_in3_input);
846 device_create_file(&new_client->dev, &dev_attr_in4_input);
847 device_create_file(&new_client->dev, &dev_attr_in5_input);
848 device_create_file(&new_client->dev, &dev_attr_in6_input);
849 device_create_file(&new_client->dev, &dev_attr_in7_input);
850 device_create_file(&new_client->dev, &dev_attr_in8_input);
851 device_create_file(&new_client->dev, &dev_attr_in9_input);
852 device_create_file(&new_client->dev, &dev_attr_in10_input);
853 device_create_file(&new_client->dev, &dev_attr_in0_min);
854 device_create_file(&new_client->dev, &dev_attr_in1_min);
855 device_create_file(&new_client->dev, &dev_attr_in2_min);
856 device_create_file(&new_client->dev, &dev_attr_in3_min);
857 device_create_file(&new_client->dev, &dev_attr_in4_min);
858 device_create_file(&new_client->dev, &dev_attr_in5_min);
859 device_create_file(&new_client->dev, &dev_attr_in6_min);
860 device_create_file(&new_client->dev, &dev_attr_in7_min);
861 device_create_file(&new_client->dev, &dev_attr_in8_min);
862 device_create_file(&new_client->dev, &dev_attr_in9_min);
863 device_create_file(&new_client->dev, &dev_attr_in10_min);
864 device_create_file(&new_client->dev, &dev_attr_in0_max);
865 device_create_file(&new_client->dev, &dev_attr_in1_max);
866 device_create_file(&new_client->dev, &dev_attr_in2_max);
867 device_create_file(&new_client->dev, &dev_attr_in3_max);
868 device_create_file(&new_client->dev, &dev_attr_in4_max);
869 device_create_file(&new_client->dev, &dev_attr_in5_max);
870 device_create_file(&new_client->dev, &dev_attr_in6_max);
871 device_create_file(&new_client->dev, &dev_attr_in7_max);
872 device_create_file(&new_client->dev, &dev_attr_in8_max);
873 device_create_file(&new_client->dev, &dev_attr_in9_max);
874 device_create_file(&new_client->dev, &dev_attr_in10_max);
875 device_create_file(&new_client->dev, &dev_attr_in0_status);
876 device_create_file(&new_client->dev, &dev_attr_in1_status);
877 device_create_file(&new_client->dev, &dev_attr_in2_status);
878 device_create_file(&new_client->dev, &dev_attr_in3_status);
879 device_create_file(&new_client->dev, &dev_attr_in4_status);
880 device_create_file(&new_client->dev, &dev_attr_in5_status);
881 device_create_file(&new_client->dev, &dev_attr_in6_status);
882 device_create_file(&new_client->dev, &dev_attr_in7_status);
883 device_create_file(&new_client->dev, &dev_attr_in8_status);
884 device_create_file(&new_client->dev, &dev_attr_in9_status);
885 device_create_file(&new_client->dev, &dev_attr_in10_status);
886
887 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
888 device_create_file(&new_client->dev, &dev_attr_vrm);
889 device_create_file(&new_client->dev, &dev_attr_alarms_in);
890 }
891
892 if (data->tempnr) {
893 device_create_file(&new_client->dev, &dev_attr_temp1_input);
894 device_create_file(&new_client->dev, &dev_attr_temp2_input);
895 device_create_file(&new_client->dev, &dev_attr_temp1_min);
896 device_create_file(&new_client->dev, &dev_attr_temp2_min);
897 device_create_file(&new_client->dev, &dev_attr_temp1_max);
898 device_create_file(&new_client->dev, &dev_attr_temp2_max);
899 device_create_file(&new_client->dev, &dev_attr_temp1_crit);
900 device_create_file(&new_client->dev, &dev_attr_temp2_crit);
901 device_create_file(&new_client->dev, &dev_attr_temp1_status);
902 device_create_file(&new_client->dev, &dev_attr_temp2_status);
903
904 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
905 }
906 if (data->tempnr == 3) {
907 device_create_file(&new_client->dev, &dev_attr_temp3_input);
908 device_create_file(&new_client->dev, &dev_attr_temp3_min);
909 device_create_file(&new_client->dev, &dev_attr_temp3_max);
910 device_create_file(&new_client->dev, &dev_attr_temp3_crit);
911 device_create_file(&new_client->dev, &dev_attr_temp3_status);
912 }
913 if (data->innr == 14) {
914 device_create_file(&new_client->dev, &dev_attr_temp4_input);
915 device_create_file(&new_client->dev, &dev_attr_temp5_input);
916 device_create_file(&new_client->dev, &dev_attr_temp6_input);
917 device_create_file(&new_client->dev, &dev_attr_temp4_min);
918 device_create_file(&new_client->dev, &dev_attr_temp5_min);
919 device_create_file(&new_client->dev, &dev_attr_temp6_min);
920 device_create_file(&new_client->dev, &dev_attr_temp4_max);
921 device_create_file(&new_client->dev, &dev_attr_temp5_max);
922 device_create_file(&new_client->dev, &dev_attr_temp6_max);
923 device_create_file(&new_client->dev, &dev_attr_temp4_crit);
924 device_create_file(&new_client->dev, &dev_attr_temp5_crit);
925 device_create_file(&new_client->dev, &dev_attr_temp6_crit);
926 device_create_file(&new_client->dev, &dev_attr_temp4_status);
927 device_create_file(&new_client->dev, &dev_attr_temp5_status);
928 device_create_file(&new_client->dev, &dev_attr_temp6_status);
929 }
930
931 if (data->fannr) {
932 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
933 device_create_file(&new_client->dev,
934 &dev_attr_fan1_input);
935 device_create_file(&new_client->dev,
936 &dev_attr_fan1_min);
937 device_create_file(&new_client->dev,
938 &dev_attr_fan1_div);
939 device_create_file(&new_client->dev,
940 &dev_attr_fan1_status);
941 }
942
943 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
944 device_create_file(&new_client->dev,
945 &dev_attr_fan2_input);
946 device_create_file(&new_client->dev,
947 &dev_attr_fan2_min);
948 device_create_file(&new_client->dev,
949 &dev_attr_fan2_div);
950 device_create_file(&new_client->dev,
951 &dev_attr_fan2_status);
952 }
953
954 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
955 device_create_file(&new_client->dev, &dev_attr_pwm1);
956 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
957 device_create_file(&new_client->dev, &dev_attr_pwm2);
958 }
959 if (data->fannr == 3) {
960 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
961 device_create_file(&new_client->dev,
962 &dev_attr_fan3_input);
963 device_create_file(&new_client->dev,
964 &dev_attr_fan3_min);
965 device_create_file(&new_client->dev,
966 &dev_attr_fan3_div);
967 device_create_file(&new_client->dev,
968 &dev_attr_fan3_status);
969 }
970
971 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
972 device_create_file(&new_client->dev, &dev_attr_pwm3);
973 }
974
975 return 0;
976
977 ERROR2:
978 for (i = 0; i < 3; i++) {
979 if (data->address[i]) {
980 release_region(data->address[i], PC87360_EXTENT);
981 }
982 }
983 ERROR1:
984 kfree(data);
985 return err;
986 }
987
988 static int pc87360_detach_client(struct i2c_client *client)
989 {
990 struct pc87360_data *data = i2c_get_clientdata(client);
991 int i;
992
993 if ((i = i2c_detach_client(client))) {
994 dev_err(&client->dev, "Client deregistration failed, "
995 "client not detached.\n");
996 return i;
997 }
998
999 for (i = 0; i < 3; i++) {
1000 if (data->address[i]) {
1001 release_region(data->address[i], PC87360_EXTENT);
1002 }
1003 }
1004 kfree(data);
1005
1006 return 0;
1007 }
1008
1009 /* ldi is the logical device index
1010 bank is for voltages and temperatures only */
1011 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1012 u8 reg)
1013 {
1014 int res;
1015
1016 down(&(data->lock));
1017 if (bank != NO_BANK)
1018 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1019 res = inb_p(data->address[ldi] + reg);
1020 up(&(data->lock));
1021
1022 return res;
1023 }
1024
1025 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1026 u8 reg, u8 value)
1027 {
1028 down(&(data->lock));
1029 if (bank != NO_BANK)
1030 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1031 outb_p(value, data->address[ldi] + reg);
1032 up(&(data->lock));
1033 }
1034
1035 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1036 {
1037 struct pc87360_data *data = i2c_get_clientdata(client);
1038 int i, nr;
1039 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1040 const u8 init_temp[3] = { 2, 2, 1 };
1041 u8 reg;
1042
1043 if (init >= 2 && data->innr) {
1044 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1045 PC87365_REG_IN_CONVRATE);
1046 dev_info(&client->dev, "VLM conversion set to "
1047 "1s period, 160us delay\n");
1048 pc87360_write_value(data, LD_IN, NO_BANK,
1049 PC87365_REG_IN_CONVRATE,
1050 (reg & 0xC0) | 0x11);
1051 }
1052
1053 nr = data->innr < 11 ? data->innr : 11;
1054 for (i=0; i<nr; i++) {
1055 if (init >= init_in[i]) {
1056 /* Forcibly enable voltage channel */
1057 reg = pc87360_read_value(data, LD_IN, i,
1058 PC87365_REG_IN_STATUS);
1059 if (!(reg & 0x01)) {
1060 dev_dbg(&client->dev, "Forcibly "
1061 "enabling in%d\n", i);
1062 pc87360_write_value(data, LD_IN, i,
1063 PC87365_REG_IN_STATUS,
1064 (reg & 0x68) | 0x87);
1065 }
1066 }
1067 }
1068
1069 /* We can't blindly trust the Super-I/O space configuration bit,
1070 most BIOS won't set it properly */
1071 for (i=11; i<data->innr; i++) {
1072 reg = pc87360_read_value(data, LD_IN, i,
1073 PC87365_REG_TEMP_STATUS);
1074 use_thermistors = use_thermistors || (reg & 0x01);
1075 }
1076
1077 i = use_thermistors ? 2 : 0;
1078 for (; i<data->tempnr; i++) {
1079 if (init >= init_temp[i]) {
1080 /* Forcibly enable temperature channel */
1081 reg = pc87360_read_value(data, LD_TEMP, i,
1082 PC87365_REG_TEMP_STATUS);
1083 if (!(reg & 0x01)) {
1084 dev_dbg(&client->dev, "Forcibly "
1085 "enabling temp%d\n", i+1);
1086 pc87360_write_value(data, LD_TEMP, i,
1087 PC87365_REG_TEMP_STATUS,
1088 0xCF);
1089 }
1090 }
1091 }
1092
1093 if (use_thermistors) {
1094 for (i=11; i<data->innr; i++) {
1095 if (init >= init_in[i]) {
1096 /* The pin may already be used by thermal
1097 diodes */
1098 reg = pc87360_read_value(data, LD_TEMP,
1099 (i-11)/2, PC87365_REG_TEMP_STATUS);
1100 if (reg & 0x01) {
1101 dev_dbg(&client->dev, "Skipping "
1102 "temp%d, pin already in use "
1103 "by temp%d\n", i-7, (i-11)/2);
1104 continue;
1105 }
1106
1107 /* Forcibly enable thermistor channel */
1108 reg = pc87360_read_value(data, LD_IN, i,
1109 PC87365_REG_IN_STATUS);
1110 if (!(reg & 0x01)) {
1111 dev_dbg(&client->dev, "Forcibly "
1112 "enabling temp%d\n", i-7);
1113 pc87360_write_value(data, LD_IN, i,
1114 PC87365_REG_TEMP_STATUS,
1115 (reg & 0x60) | 0x8F);
1116 }
1117 }
1118 }
1119 }
1120
1121 if (data->innr) {
1122 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1123 PC87365_REG_IN_CONFIG);
1124 if (reg & 0x01) {
1125 dev_dbg(&client->dev, "Forcibly "
1126 "enabling monitoring (VLM)\n");
1127 pc87360_write_value(data, LD_IN, NO_BANK,
1128 PC87365_REG_IN_CONFIG,
1129 reg & 0xFE);
1130 }
1131 }
1132
1133 if (data->tempnr) {
1134 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1135 PC87365_REG_TEMP_CONFIG);
1136 if (reg & 0x01) {
1137 dev_dbg(&client->dev, "Forcibly enabling "
1138 "monitoring (TMS)\n");
1139 pc87360_write_value(data, LD_TEMP, NO_BANK,
1140 PC87365_REG_TEMP_CONFIG,
1141 reg & 0xFE);
1142 }
1143
1144 if (init >= 2) {
1145 /* Chip config as documented by National Semi. */
1146 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1147 /* We voluntarily omit the bank here, in case the
1148 sequence itself matters. It shouldn't be a problem,
1149 since nobody else is supposed to access the
1150 device at that point. */
1151 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1152 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1153 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1154 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1155 }
1156 }
1157 }
1158
1159 static void pc87360_autodiv(struct i2c_client *client, int nr)
1160 {
1161 struct pc87360_data *data = i2c_get_clientdata(client);
1162 u8 old_min = data->fan_min[nr];
1163
1164 /* Increase clock divider if needed and possible */
1165 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1166 || (data->fan[nr] >= 224)) { /* next to overflow */
1167 if ((data->fan_status[nr] & 0x60) != 0x60) {
1168 data->fan_status[nr] += 0x20;
1169 data->fan_min[nr] >>= 1;
1170 data->fan[nr] >>= 1;
1171 dev_dbg(&client->dev, "Increasing "
1172 "clock divider to %d for fan %d\n",
1173 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1174 }
1175 } else {
1176 /* Decrease clock divider if possible */
1177 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1178 && data->fan[nr] < 85 /* bad accuracy */
1179 && (data->fan_status[nr] & 0x60) != 0x00) {
1180 data->fan_status[nr] -= 0x20;
1181 data->fan_min[nr] <<= 1;
1182 data->fan[nr] <<= 1;
1183 dev_dbg(&client->dev, "Decreasing "
1184 "clock divider to %d for fan %d\n",
1185 FAN_DIV_FROM_REG(data->fan_status[nr]),
1186 nr+1);
1187 }
1188 }
1189
1190 /* Write new fan min if it changed */
1191 if (old_min != data->fan_min[nr]) {
1192 pc87360_write_value(data, LD_FAN, NO_BANK,
1193 PC87360_REG_FAN_MIN(nr),
1194 data->fan_min[nr]);
1195 }
1196 }
1197
1198 static struct pc87360_data *pc87360_update_device(struct device *dev)
1199 {
1200 struct i2c_client *client = to_i2c_client(dev);
1201 struct pc87360_data *data = i2c_get_clientdata(client);
1202 u8 i;
1203
1204 down(&data->update_lock);
1205
1206 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1207 dev_dbg(&client->dev, "Data update\n");
1208
1209 /* Fans */
1210 for (i = 0; i < data->fannr; i++) {
1211 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1212 data->fan_status[i] =
1213 pc87360_read_value(data, LD_FAN,
1214 NO_BANK, PC87360_REG_FAN_STATUS(i));
1215 data->fan[i] = pc87360_read_value(data, LD_FAN,
1216 NO_BANK, PC87360_REG_FAN(i));
1217 data->fan_min[i] = pc87360_read_value(data,
1218 LD_FAN, NO_BANK,
1219 PC87360_REG_FAN_MIN(i));
1220 /* Change clock divider if needed */
1221 pc87360_autodiv(client, i);
1222 /* Clear bits and write new divider */
1223 pc87360_write_value(data, LD_FAN, NO_BANK,
1224 PC87360_REG_FAN_STATUS(i),
1225 data->fan_status[i]);
1226 }
1227 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1228 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1229 NO_BANK, PC87360_REG_PWM(i));
1230 }
1231
1232 /* Voltages */
1233 for (i = 0; i < data->innr; i++) {
1234 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1235 PC87365_REG_IN_STATUS);
1236 /* Clear bits */
1237 pc87360_write_value(data, LD_IN, i,
1238 PC87365_REG_IN_STATUS,
1239 data->in_status[i]);
1240 if ((data->in_status[i] & 0x81) == 0x81) {
1241 data->in[i] = pc87360_read_value(data, LD_IN,
1242 i, PC87365_REG_IN);
1243 }
1244 if (data->in_status[i] & 0x01) {
1245 data->in_min[i] = pc87360_read_value(data,
1246 LD_IN, i,
1247 PC87365_REG_IN_MIN);
1248 data->in_max[i] = pc87360_read_value(data,
1249 LD_IN, i,
1250 PC87365_REG_IN_MAX);
1251 if (i >= 11)
1252 data->in_crit[i-11] =
1253 pc87360_read_value(data, LD_IN,
1254 i, PC87365_REG_TEMP_CRIT);
1255 }
1256 }
1257 if (data->innr) {
1258 data->in_alarms = pc87360_read_value(data, LD_IN,
1259 NO_BANK, PC87365_REG_IN_ALARMS1)
1260 | ((pc87360_read_value(data, LD_IN,
1261 NO_BANK, PC87365_REG_IN_ALARMS2)
1262 & 0x07) << 8);
1263 data->vid = (data->vid_conf & 0xE0) ?
1264 pc87360_read_value(data, LD_IN,
1265 NO_BANK, PC87365_REG_VID) : 0x1F;
1266 }
1267
1268 /* Temperatures */
1269 for (i = 0; i < data->tempnr; i++) {
1270 data->temp_status[i] = pc87360_read_value(data,
1271 LD_TEMP, i,
1272 PC87365_REG_TEMP_STATUS);
1273 /* Clear bits */
1274 pc87360_write_value(data, LD_TEMP, i,
1275 PC87365_REG_TEMP_STATUS,
1276 data->temp_status[i]);
1277 if ((data->temp_status[i] & 0x81) == 0x81) {
1278 data->temp[i] = pc87360_read_value(data,
1279 LD_TEMP, i,
1280 PC87365_REG_TEMP);
1281 }
1282 if (data->temp_status[i] & 0x01) {
1283 data->temp_min[i] = pc87360_read_value(data,
1284 LD_TEMP, i,
1285 PC87365_REG_TEMP_MIN);
1286 data->temp_max[i] = pc87360_read_value(data,
1287 LD_TEMP, i,
1288 PC87365_REG_TEMP_MAX);
1289 data->temp_crit[i] = pc87360_read_value(data,
1290 LD_TEMP, i,
1291 PC87365_REG_TEMP_CRIT);
1292 }
1293 }
1294 if (data->tempnr) {
1295 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1296 NO_BANK, PC87365_REG_TEMP_ALARMS)
1297 & 0x3F;
1298 }
1299
1300 data->last_updated = jiffies;
1301 data->valid = 1;
1302 }
1303
1304 up(&data->update_lock);
1305
1306 return data;
1307 }
1308
1309 static int __init pc87360_init(void)
1310 {
1311 int i;
1312
1313 if (pc87360_find(0x2e, &devid, extra_isa)
1314 && pc87360_find(0x4e, &devid, extra_isa)) {
1315 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1316 "module not inserted.\n");
1317 return -ENODEV;
1318 }
1319
1320 /* Arbitrarily pick one of the addresses */
1321 for (i = 0; i < 3; i++) {
1322 if (extra_isa[i] != 0x0000) {
1323 normal_isa[0] = extra_isa[i];
1324 break;
1325 }
1326 }
1327
1328 if (normal_isa[0] == 0x0000) {
1329 printk(KERN_WARNING "pc87360: No active logical device, "
1330 "module not inserted.\n");
1331 return -ENODEV;
1332 }
1333
1334 return i2c_add_driver(&pc87360_driver);
1335 }
1336
1337 static void __exit pc87360_exit(void)
1338 {
1339 i2c_del_driver(&pc87360_driver);
1340 }
1341
1342
1343 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1344 MODULE_DESCRIPTION("PC8736x hardware monitor");
1345 MODULE_LICENSE("GPL");
1346
1347 module_init(pc87360_init);
1348 module_exit(pc87360_exit);
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