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Linux-2.6.12-rc2
[deliverable/linux.git] / drivers / i2c / chips / pc87360.c
1 /*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Supports the following chips:
24 *
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
31 *
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
34 */
35
36 #include <linux/config.h>
37 #include <linux/module.h>
38 #include <linux/init.h>
39 #include <linux/slab.h>
40 #include <linux/jiffies.h>
41 #include <linux/i2c.h>
42 #include <linux/i2c-sensor.h>
43 #include <linux/i2c-vid.h>
44 #include <asm/io.h>
45
46 static unsigned short normal_i2c[] = { I2C_CLIENT_END };
47 static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
48 static struct i2c_force_data forces[] = {{ NULL }};
49 static u8 devid;
50 static unsigned int extra_isa[3];
51 static u8 confreg[4];
52
53 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
54 static struct i2c_address_data addr_data = {
55 .normal_i2c = normal_i2c,
56 .normal_isa = normal_isa,
57 .forces = forces,
58 };
59
60 static int init = 1;
61 module_param(init, int, 0);
62 MODULE_PARM_DESC(init,
63 "Chip initialization level:\n"
64 " 0: None\n"
65 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
66 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
67 " 3: Forcibly enable all voltage and temperature channels, including in9");
68
69 /*
70 * Super-I/O registers and operations
71 */
72
73 #define DEV 0x07 /* Register: Logical device select */
74 #define DEVID 0x20 /* Register: Device ID */
75 #define ACT 0x30 /* Register: Device activation */
76 #define BASE 0x60 /* Register: Base address */
77
78 #define FSCM 0x09 /* Logical device: fans */
79 #define VLM 0x0d /* Logical device: voltages */
80 #define TMS 0x0e /* Logical device: temperatures */
81 static const u8 logdev[3] = { FSCM, VLM, TMS };
82
83 #define LD_FAN 0
84 #define LD_IN 1
85 #define LD_TEMP 2
86
87 static inline void superio_outb(int sioaddr, int reg, int val)
88 {
89 outb(reg, sioaddr);
90 outb(val, sioaddr+1);
91 }
92
93 static inline int superio_inb(int sioaddr, int reg)
94 {
95 outb(reg, sioaddr);
96 return inb(sioaddr+1);
97 }
98
99 static inline void superio_exit(int sioaddr)
100 {
101 outb(0x02, sioaddr);
102 outb(0x02, sioaddr+1);
103 }
104
105 /*
106 * Logical devices
107 */
108
109 #define PC87360_EXTENT 0x10
110 #define PC87365_REG_BANK 0x09
111 #define NO_BANK 0xff
112
113 /*
114 * Fan registers and conversions
115 */
116
117 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
118 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
119 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
120 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
121 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
122 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
123
124 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
125 480000 / ((val)*(div)))
126 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
127 480000 / ((val)*(div)))
128 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
129 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
130
131 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
132 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
133 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
134
135 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
136 static inline u8 PWM_TO_REG(int val, int inv)
137 {
138 if (inv)
139 val = 255 - val;
140 if (val < 0)
141 return 0;
142 if (val > 255)
143 return 255;
144 return val;
145 }
146
147 /*
148 * Voltage registers and conversions
149 */
150
151 #define PC87365_REG_IN_CONVRATE 0x07
152 #define PC87365_REG_IN_CONFIG 0x08
153 #define PC87365_REG_IN 0x0B
154 #define PC87365_REG_IN_MIN 0x0D
155 #define PC87365_REG_IN_MAX 0x0C
156 #define PC87365_REG_IN_STATUS 0x0A
157 #define PC87365_REG_IN_ALARMS1 0x00
158 #define PC87365_REG_IN_ALARMS2 0x01
159 #define PC87365_REG_VID 0x06
160
161 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
162 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
163 (val)*256 >= (ref)*255 ? 255: \
164 ((val) * 256 + (ref)/2) / (ref))
165
166 /*
167 * Temperature registers and conversions
168 */
169
170 #define PC87365_REG_TEMP_CONFIG 0x08
171 #define PC87365_REG_TEMP 0x0B
172 #define PC87365_REG_TEMP_MIN 0x0D
173 #define PC87365_REG_TEMP_MAX 0x0C
174 #define PC87365_REG_TEMP_CRIT 0x0E
175 #define PC87365_REG_TEMP_STATUS 0x0A
176 #define PC87365_REG_TEMP_ALARMS 0x00
177
178 #define TEMP_FROM_REG(val) ((val) * 1000)
179 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
180 (val) > 127000 ? 127 : \
181 (val) < 0 ? ((val) - 500) / 1000 : \
182 ((val) + 500) / 1000)
183
184 /*
185 * Client data (each client gets its own)
186 */
187
188 struct pc87360_data {
189 struct i2c_client client;
190 struct semaphore lock;
191 struct semaphore update_lock;
192 char valid; /* !=0 if following fields are valid */
193 unsigned long last_updated; /* In jiffies */
194
195 int address[3];
196
197 u8 fannr, innr, tempnr;
198
199 u8 fan[3]; /* Register value */
200 u8 fan_min[3]; /* Register value */
201 u8 fan_status[3]; /* Register value */
202 u8 pwm[3]; /* Register value */
203 u16 fan_conf; /* Configuration register values, combined */
204
205 u16 in_vref; /* 1 mV/bit */
206 u8 in[14]; /* Register value */
207 u8 in_min[14]; /* Register value */
208 u8 in_max[14]; /* Register value */
209 u8 in_crit[3]; /* Register value */
210 u8 in_status[14]; /* Register value */
211 u16 in_alarms; /* Register values, combined, masked */
212 u8 vid_conf; /* Configuration register value */
213 u8 vrm;
214 u8 vid; /* Register value */
215
216 s8 temp[3]; /* Register value */
217 s8 temp_min[3]; /* Register value */
218 s8 temp_max[3]; /* Register value */
219 s8 temp_crit[3]; /* Register value */
220 u8 temp_status[3]; /* Register value */
221 u8 temp_alarms; /* Register value, masked */
222 };
223
224 /*
225 * Functions declaration
226 */
227
228 static int pc87360_attach_adapter(struct i2c_adapter *adapter);
229 static int pc87360_detect(struct i2c_adapter *adapter, int address, int kind);
230 static int pc87360_detach_client(struct i2c_client *client);
231
232 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
233 u8 reg);
234 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
235 u8 reg, u8 value);
236 static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
237 static struct pc87360_data *pc87360_update_device(struct device *dev);
238
239 /*
240 * Driver data (common to all clients)
241 */
242
243 static struct i2c_driver pc87360_driver = {
244 .owner = THIS_MODULE,
245 .name = "pc87360",
246 .flags = I2C_DF_NOTIFY,
247 .attach_adapter = pc87360_attach_adapter,
248 .detach_client = pc87360_detach_client,
249 };
250
251 /*
252 * Sysfs stuff
253 */
254
255 static ssize_t set_fan_min(struct device *dev, const char *buf,
256 size_t count, int nr)
257 {
258 struct i2c_client *client = to_i2c_client(dev);
259 struct pc87360_data *data = i2c_get_clientdata(client);
260 long fan_min = simple_strtol(buf, NULL, 10);
261
262 down(&data->update_lock);
263 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[nr]));
264
265 /* If it wouldn't fit, change clock divisor */
266 while (fan_min > 255
267 && (data->fan_status[nr] & 0x60) != 0x60) {
268 fan_min >>= 1;
269 data->fan[nr] >>= 1;
270 data->fan_status[nr] += 0x20;
271 }
272 data->fan_min[nr] = fan_min > 255 ? 255 : fan_min;
273 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr),
274 data->fan_min[nr]);
275
276 /* Write new divider, preserve alarm bits */
277 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(nr),
278 data->fan_status[nr] & 0xF9);
279 up(&data->update_lock);
280
281 return count;
282 }
283
284 #define show_and_set_fan(offset) \
285 static ssize_t show_fan##offset##_input(struct device *dev, char *buf) \
286 { \
287 struct pc87360_data *data = pc87360_update_device(dev); \
288 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[offset-1], \
289 FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
290 } \
291 static ssize_t show_fan##offset##_min(struct device *dev, char *buf) \
292 { \
293 struct pc87360_data *data = pc87360_update_device(dev); \
294 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[offset-1], \
295 FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
296 } \
297 static ssize_t show_fan##offset##_div(struct device *dev, char *buf) \
298 { \
299 struct pc87360_data *data = pc87360_update_device(dev); \
300 return sprintf(buf, "%u\n", \
301 FAN_DIV_FROM_REG(data->fan_status[offset-1])); \
302 } \
303 static ssize_t show_fan##offset##_status(struct device *dev, char *buf) \
304 { \
305 struct pc87360_data *data = pc87360_update_device(dev); \
306 return sprintf(buf, "%u\n", \
307 FAN_STATUS_FROM_REG(data->fan_status[offset-1])); \
308 } \
309 static ssize_t set_fan##offset##_min(struct device *dev, const char *buf, \
310 size_t count) \
311 { \
312 return set_fan_min(dev, buf, count, offset-1); \
313 } \
314 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
315 show_fan##offset##_input, NULL); \
316 static DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
317 show_fan##offset##_min, set_fan##offset##_min); \
318 static DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
319 show_fan##offset##_div, NULL); \
320 static DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
321 show_fan##offset##_status, NULL);
322 show_and_set_fan(1)
323 show_and_set_fan(2)
324 show_and_set_fan(3)
325
326 #define show_and_set_pwm(offset) \
327 static ssize_t show_pwm##offset(struct device *dev, char *buf) \
328 { \
329 struct pc87360_data *data = pc87360_update_device(dev); \
330 return sprintf(buf, "%u\n", \
331 PWM_FROM_REG(data->pwm[offset-1], \
332 FAN_CONFIG_INVERT(data->fan_conf, \
333 offset-1))); \
334 } \
335 static ssize_t set_pwm##offset(struct device *dev, const char *buf, \
336 size_t count) \
337 { \
338 struct i2c_client *client = to_i2c_client(dev); \
339 struct pc87360_data *data = i2c_get_clientdata(client); \
340 long val = simple_strtol(buf, NULL, 10); \
341 \
342 down(&data->update_lock); \
343 data->pwm[offset-1] = PWM_TO_REG(val, \
344 FAN_CONFIG_INVERT(data->fan_conf, offset-1)); \
345 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(offset-1), \
346 data->pwm[offset-1]); \
347 up(&data->update_lock); \
348 return count; \
349 } \
350 static DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
351 show_pwm##offset, set_pwm##offset);
352 show_and_set_pwm(1)
353 show_and_set_pwm(2)
354 show_and_set_pwm(3)
355
356 #define show_and_set_in(offset) \
357 static ssize_t show_in##offset##_input(struct device *dev, char *buf) \
358 { \
359 struct pc87360_data *data = pc87360_update_device(dev); \
360 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
361 data->in_vref)); \
362 } \
363 static ssize_t show_in##offset##_min(struct device *dev, char *buf) \
364 { \
365 struct pc87360_data *data = pc87360_update_device(dev); \
366 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
367 data->in_vref)); \
368 } \
369 static ssize_t show_in##offset##_max(struct device *dev, char *buf) \
370 { \
371 struct pc87360_data *data = pc87360_update_device(dev); \
372 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
373 data->in_vref)); \
374 } \
375 static ssize_t show_in##offset##_status(struct device *dev, char *buf) \
376 { \
377 struct pc87360_data *data = pc87360_update_device(dev); \
378 return sprintf(buf, "%u\n", data->in_status[offset]); \
379 } \
380 static ssize_t set_in##offset##_min(struct device *dev, const char *buf, \
381 size_t count) \
382 { \
383 struct i2c_client *client = to_i2c_client(dev); \
384 struct pc87360_data *data = i2c_get_clientdata(client); \
385 long val = simple_strtol(buf, NULL, 10); \
386 \
387 down(&data->update_lock); \
388 data->in_min[offset] = IN_TO_REG(val, data->in_vref); \
389 pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MIN, \
390 data->in_min[offset]); \
391 up(&data->update_lock); \
392 return count; \
393 } \
394 static ssize_t set_in##offset##_max(struct device *dev, const char *buf, \
395 size_t count) \
396 { \
397 struct i2c_client *client = to_i2c_client(dev); \
398 struct pc87360_data *data = i2c_get_clientdata(client); \
399 long val = simple_strtol(buf, NULL, 10); \
400 \
401 down(&data->update_lock); \
402 data->in_max[offset] = IN_TO_REG(val, \
403 data->in_vref); \
404 pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MAX, \
405 data->in_max[offset]); \
406 up(&data->update_lock); \
407 return count; \
408 } \
409 static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
410 show_in##offset##_input, NULL); \
411 static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
412 show_in##offset##_min, set_in##offset##_min); \
413 static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
414 show_in##offset##_max, set_in##offset##_max); \
415 static DEVICE_ATTR(in##offset##_status, S_IRUGO, \
416 show_in##offset##_status, NULL);
417 show_and_set_in(0)
418 show_and_set_in(1)
419 show_and_set_in(2)
420 show_and_set_in(3)
421 show_and_set_in(4)
422 show_and_set_in(5)
423 show_and_set_in(6)
424 show_and_set_in(7)
425 show_and_set_in(8)
426 show_and_set_in(9)
427 show_and_set_in(10)
428
429 #define show_and_set_therm(offset) \
430 static ssize_t show_temp##offset##_input(struct device *dev, char *buf) \
431 { \
432 struct pc87360_data *data = pc87360_update_device(dev); \
433 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset+7], \
434 data->in_vref)); \
435 } \
436 static ssize_t show_temp##offset##_min(struct device *dev, char *buf) \
437 { \
438 struct pc87360_data *data = pc87360_update_device(dev); \
439 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset+7], \
440 data->in_vref)); \
441 } \
442 static ssize_t show_temp##offset##_max(struct device *dev, char *buf) \
443 { \
444 struct pc87360_data *data = pc87360_update_device(dev); \
445 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset+7], \
446 data->in_vref)); \
447 } \
448 static ssize_t show_temp##offset##_crit(struct device *dev, char *buf) \
449 { \
450 struct pc87360_data *data = pc87360_update_device(dev); \
451 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[offset-4], \
452 data->in_vref)); \
453 } \
454 static ssize_t show_temp##offset##_status(struct device *dev, char *buf) \
455 { \
456 struct pc87360_data *data = pc87360_update_device(dev); \
457 return sprintf(buf, "%u\n", data->in_status[offset+7]); \
458 } \
459 static ssize_t set_temp##offset##_min(struct device *dev, const char *buf, \
460 size_t count) \
461 { \
462 struct i2c_client *client = to_i2c_client(dev); \
463 struct pc87360_data *data = i2c_get_clientdata(client); \
464 long val = simple_strtol(buf, NULL, 10); \
465 \
466 down(&data->update_lock); \
467 data->in_min[offset+7] = IN_TO_REG(val, data->in_vref); \
468 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MIN, \
469 data->in_min[offset+7]); \
470 up(&data->update_lock); \
471 return count; \
472 } \
473 static ssize_t set_temp##offset##_max(struct device *dev, const char *buf, \
474 size_t count) \
475 { \
476 struct i2c_client *client = to_i2c_client(dev); \
477 struct pc87360_data *data = i2c_get_clientdata(client); \
478 long val = simple_strtol(buf, NULL, 10); \
479 \
480 down(&data->update_lock); \
481 data->in_max[offset+7] = IN_TO_REG(val, data->in_vref); \
482 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MAX, \
483 data->in_max[offset+7]); \
484 up(&data->update_lock); \
485 return count; \
486 } \
487 static ssize_t set_temp##offset##_crit(struct device *dev, const char *buf, \
488 size_t count) \
489 { \
490 struct i2c_client *client = to_i2c_client(dev); \
491 struct pc87360_data *data = i2c_get_clientdata(client); \
492 long val = simple_strtol(buf, NULL, 10); \
493 \
494 down(&data->update_lock); \
495 data->in_crit[offset-4] = IN_TO_REG(val, data->in_vref); \
496 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_CRIT, \
497 data->in_crit[offset-4]); \
498 up(&data->update_lock); \
499 return count; \
500 } \
501 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
502 show_temp##offset##_input, NULL); \
503 static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
504 show_temp##offset##_min, set_temp##offset##_min); \
505 static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
506 show_temp##offset##_max, set_temp##offset##_max); \
507 static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
508 show_temp##offset##_crit, set_temp##offset##_crit); \
509 static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
510 show_temp##offset##_status, NULL);
511 show_and_set_therm(4)
512 show_and_set_therm(5)
513 show_and_set_therm(6)
514
515 static ssize_t show_vid(struct device *dev, char *buf)
516 {
517 struct pc87360_data *data = pc87360_update_device(dev);
518 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
519 }
520 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
521
522 static ssize_t show_vrm(struct device *dev, char *buf)
523 {
524 struct pc87360_data *data = pc87360_update_device(dev);
525 return sprintf(buf, "%u\n", data->vrm);
526 }
527 static ssize_t set_vrm(struct device *dev, const char *buf, size_t count)
528 {
529 struct i2c_client *client = to_i2c_client(dev);
530 struct pc87360_data *data = i2c_get_clientdata(client);
531 data->vrm = simple_strtoul(buf, NULL, 10);
532 return count;
533 }
534 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
535
536 static ssize_t show_in_alarms(struct device *dev, char *buf)
537 {
538 struct pc87360_data *data = pc87360_update_device(dev);
539 return sprintf(buf, "%u\n", data->in_alarms);
540 }
541 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
542
543 #define show_and_set_temp(offset) \
544 static ssize_t show_temp##offset##_input(struct device *dev, char *buf) \
545 { \
546 struct pc87360_data *data = pc87360_update_device(dev); \
547 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
548 } \
549 static ssize_t show_temp##offset##_min(struct device *dev, char *buf) \
550 { \
551 struct pc87360_data *data = pc87360_update_device(dev); \
552 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
553 } \
554 static ssize_t show_temp##offset##_max(struct device *dev, char *buf) \
555 { \
556 struct pc87360_data *data = pc87360_update_device(dev); \
557 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
558 }\
559 static ssize_t show_temp##offset##_crit(struct device *dev, char *buf) \
560 { \
561 struct pc87360_data *data = pc87360_update_device(dev); \
562 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[offset-1])); \
563 }\
564 static ssize_t show_temp##offset##_status(struct device *dev, char *buf) \
565 { \
566 struct pc87360_data *data = pc87360_update_device(dev); \
567 return sprintf(buf, "%d\n", data->temp_status[offset-1]); \
568 }\
569 static ssize_t set_temp##offset##_min(struct device *dev, const char *buf, \
570 size_t count) \
571 { \
572 struct i2c_client *client = to_i2c_client(dev); \
573 struct pc87360_data *data = i2c_get_clientdata(client); \
574 long val = simple_strtol(buf, NULL, 10); \
575 \
576 down(&data->update_lock); \
577 data->temp_min[offset-1] = TEMP_TO_REG(val); \
578 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MIN, \
579 data->temp_min[offset-1]); \
580 up(&data->update_lock); \
581 return count; \
582 } \
583 static ssize_t set_temp##offset##_max(struct device *dev, const char *buf, \
584 size_t count) \
585 { \
586 struct i2c_client *client = to_i2c_client(dev); \
587 struct pc87360_data *data = i2c_get_clientdata(client); \
588 long val = simple_strtol(buf, NULL, 10); \
589 \
590 down(&data->update_lock); \
591 data->temp_max[offset-1] = TEMP_TO_REG(val); \
592 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MAX, \
593 data->temp_max[offset-1]); \
594 up(&data->update_lock); \
595 return count; \
596 } \
597 static ssize_t set_temp##offset##_crit(struct device *dev, const char *buf, \
598 size_t count) \
599 { \
600 struct i2c_client *client = to_i2c_client(dev); \
601 struct pc87360_data *data = i2c_get_clientdata(client); \
602 long val = simple_strtol(buf, NULL, 10); \
603 \
604 down(&data->update_lock); \
605 data->temp_crit[offset-1] = TEMP_TO_REG(val); \
606 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_CRIT, \
607 data->temp_crit[offset-1]); \
608 up(&data->update_lock); \
609 return count; \
610 } \
611 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
612 show_temp##offset##_input, NULL); \
613 static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
614 show_temp##offset##_min, set_temp##offset##_min); \
615 static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
616 show_temp##offset##_max, set_temp##offset##_max); \
617 static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
618 show_temp##offset##_crit, set_temp##offset##_crit); \
619 static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
620 show_temp##offset##_status, NULL);
621 show_and_set_temp(1)
622 show_and_set_temp(2)
623 show_and_set_temp(3)
624
625 static ssize_t show_temp_alarms(struct device *dev, char *buf)
626 {
627 struct pc87360_data *data = pc87360_update_device(dev);
628 return sprintf(buf, "%u\n", data->temp_alarms);
629 }
630 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
631
632 /*
633 * Device detection, registration and update
634 */
635
636 static int pc87360_attach_adapter(struct i2c_adapter *adapter)
637 {
638 return i2c_detect(adapter, &addr_data, pc87360_detect);
639 }
640
641 static int pc87360_find(int sioaddr, u8 *devid, int *address)
642 {
643 u16 val;
644 int i;
645 int nrdev; /* logical device count */
646
647 /* No superio_enter */
648
649 /* Identify device */
650 val = superio_inb(sioaddr, DEVID);
651 switch (val) {
652 case 0xE1: /* PC87360 */
653 case 0xE8: /* PC87363 */
654 case 0xE4: /* PC87364 */
655 nrdev = 1;
656 break;
657 case 0xE5: /* PC87365 */
658 case 0xE9: /* PC87366 */
659 nrdev = 3;
660 break;
661 default:
662 superio_exit(sioaddr);
663 return -ENODEV;
664 }
665 /* Remember the device id */
666 *devid = val;
667
668 for (i = 0; i < nrdev; i++) {
669 /* select logical device */
670 superio_outb(sioaddr, DEV, logdev[i]);
671
672 val = superio_inb(sioaddr, ACT);
673 if (!(val & 0x01)) {
674 printk(KERN_INFO "pc87360: Device 0x%02x not "
675 "activated\n", logdev[i]);
676 continue;
677 }
678
679 val = (superio_inb(sioaddr, BASE) << 8)
680 | superio_inb(sioaddr, BASE + 1);
681 if (!val) {
682 printk(KERN_INFO "pc87360: Base address not set for "
683 "device 0x%02x\n", logdev[i]);
684 continue;
685 }
686
687 address[i] = val;
688
689 if (i==0) { /* Fans */
690 confreg[0] = superio_inb(sioaddr, 0xF0);
691 confreg[1] = superio_inb(sioaddr, 0xF1);
692
693 #ifdef DEBUG
694 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
695 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
696 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
697 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
698 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
699 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
700 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
701 "ctrl=%d inv=%d\n", confreg[1]&1,
702 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
703 #endif
704 } else if (i==1) { /* Voltages */
705 /* Are we using thermistors? */
706 if (*devid == 0xE9) { /* PC87366 */
707 /* These registers are not logical-device
708 specific, just that we won't need them if
709 we don't use the VLM device */
710 confreg[2] = superio_inb(sioaddr, 0x2B);
711 confreg[3] = superio_inb(sioaddr, 0x25);
712
713 if (confreg[2] & 0x40) {
714 printk(KERN_INFO "pc87360: Using "
715 "thermistors for temperature "
716 "monitoring\n");
717 }
718 if (confreg[3] & 0xE0) {
719 printk(KERN_INFO "pc87360: VID "
720 "inputs routed (mode %u)\n",
721 confreg[3] >> 5);
722 }
723 }
724 }
725 }
726
727 superio_exit(sioaddr);
728 return 0;
729 }
730
731 /* We don't really care about the address.
732 Read from extra_isa instead. */
733 int pc87360_detect(struct i2c_adapter *adapter, int address, int kind)
734 {
735 int i;
736 struct i2c_client *new_client;
737 struct pc87360_data *data;
738 int err = 0;
739 const char *name = "pc87360";
740 int use_thermistors = 0;
741
742 if (!i2c_is_isa_adapter(adapter))
743 return -ENODEV;
744
745 if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
746 return -ENOMEM;
747 memset(data, 0x00, sizeof(struct pc87360_data));
748
749 new_client = &data->client;
750 i2c_set_clientdata(new_client, data);
751 new_client->addr = address;
752 init_MUTEX(&data->lock);
753 new_client->adapter = adapter;
754 new_client->driver = &pc87360_driver;
755 new_client->flags = 0;
756
757 data->fannr = 2;
758 data->innr = 0;
759 data->tempnr = 0;
760
761 switch (devid) {
762 case 0xe8:
763 name = "pc87363";
764 break;
765 case 0xe4:
766 name = "pc87364";
767 data->fannr = 3;
768 break;
769 case 0xe5:
770 name = "pc87365";
771 data->fannr = extra_isa[0] ? 3 : 0;
772 data->innr = extra_isa[1] ? 11 : 0;
773 data->tempnr = extra_isa[2] ? 2 : 0;
774 break;
775 case 0xe9:
776 name = "pc87366";
777 data->fannr = extra_isa[0] ? 3 : 0;
778 data->innr = extra_isa[1] ? 14 : 0;
779 data->tempnr = extra_isa[2] ? 3 : 0;
780 break;
781 }
782
783 strcpy(new_client->name, name);
784 data->valid = 0;
785 init_MUTEX(&data->update_lock);
786
787 for (i = 0; i < 3; i++) {
788 if (((data->address[i] = extra_isa[i]))
789 && !request_region(extra_isa[i], PC87360_EXTENT,
790 pc87360_driver.name)) {
791 dev_err(&new_client->dev, "Region 0x%x-0x%x already "
792 "in use!\n", extra_isa[i],
793 extra_isa[i]+PC87360_EXTENT-1);
794 for (i--; i >= 0; i--)
795 release_region(extra_isa[i], PC87360_EXTENT);
796 err = -EBUSY;
797 goto ERROR1;
798 }
799 }
800
801 /* Retrieve the fans configuration from Super-I/O space */
802 if (data->fannr)
803 data->fan_conf = confreg[0] | (confreg[1] << 8);
804
805 if ((err = i2c_attach_client(new_client)))
806 goto ERROR2;
807
808 /* Use the correct reference voltage
809 Unless both the VLM and the TMS logical devices agree to
810 use an external Vref, the internal one is used. */
811 if (data->innr) {
812 i = pc87360_read_value(data, LD_IN, NO_BANK,
813 PC87365_REG_IN_CONFIG);
814 if (data->tempnr) {
815 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
816 PC87365_REG_TEMP_CONFIG);
817 }
818 data->in_vref = (i&0x02) ? 3025 : 2966;
819 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
820 (i&0x02) ? "external" : "internal");
821
822 data->vid_conf = confreg[3];
823 data->vrm = 90;
824 }
825
826 /* Fan clock dividers may be needed before any data is read */
827 for (i = 0; i < data->fannr; i++) {
828 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
829 data->fan_status[i] = pc87360_read_value(data,
830 LD_FAN, NO_BANK,
831 PC87360_REG_FAN_STATUS(i));
832 }
833
834 if (init > 0) {
835 if (devid == 0xe9 && data->address[1]) /* PC87366 */
836 use_thermistors = confreg[2] & 0x40;
837
838 pc87360_init_client(new_client, use_thermistors);
839 }
840
841 /* Register sysfs hooks */
842 if (data->innr) {
843 device_create_file(&new_client->dev, &dev_attr_in0_input);
844 device_create_file(&new_client->dev, &dev_attr_in1_input);
845 device_create_file(&new_client->dev, &dev_attr_in2_input);
846 device_create_file(&new_client->dev, &dev_attr_in3_input);
847 device_create_file(&new_client->dev, &dev_attr_in4_input);
848 device_create_file(&new_client->dev, &dev_attr_in5_input);
849 device_create_file(&new_client->dev, &dev_attr_in6_input);
850 device_create_file(&new_client->dev, &dev_attr_in7_input);
851 device_create_file(&new_client->dev, &dev_attr_in8_input);
852 device_create_file(&new_client->dev, &dev_attr_in9_input);
853 device_create_file(&new_client->dev, &dev_attr_in10_input);
854 device_create_file(&new_client->dev, &dev_attr_in0_min);
855 device_create_file(&new_client->dev, &dev_attr_in1_min);
856 device_create_file(&new_client->dev, &dev_attr_in2_min);
857 device_create_file(&new_client->dev, &dev_attr_in3_min);
858 device_create_file(&new_client->dev, &dev_attr_in4_min);
859 device_create_file(&new_client->dev, &dev_attr_in5_min);
860 device_create_file(&new_client->dev, &dev_attr_in6_min);
861 device_create_file(&new_client->dev, &dev_attr_in7_min);
862 device_create_file(&new_client->dev, &dev_attr_in8_min);
863 device_create_file(&new_client->dev, &dev_attr_in9_min);
864 device_create_file(&new_client->dev, &dev_attr_in10_min);
865 device_create_file(&new_client->dev, &dev_attr_in0_max);
866 device_create_file(&new_client->dev, &dev_attr_in1_max);
867 device_create_file(&new_client->dev, &dev_attr_in2_max);
868 device_create_file(&new_client->dev, &dev_attr_in3_max);
869 device_create_file(&new_client->dev, &dev_attr_in4_max);
870 device_create_file(&new_client->dev, &dev_attr_in5_max);
871 device_create_file(&new_client->dev, &dev_attr_in6_max);
872 device_create_file(&new_client->dev, &dev_attr_in7_max);
873 device_create_file(&new_client->dev, &dev_attr_in8_max);
874 device_create_file(&new_client->dev, &dev_attr_in9_max);
875 device_create_file(&new_client->dev, &dev_attr_in10_max);
876 device_create_file(&new_client->dev, &dev_attr_in0_status);
877 device_create_file(&new_client->dev, &dev_attr_in1_status);
878 device_create_file(&new_client->dev, &dev_attr_in2_status);
879 device_create_file(&new_client->dev, &dev_attr_in3_status);
880 device_create_file(&new_client->dev, &dev_attr_in4_status);
881 device_create_file(&new_client->dev, &dev_attr_in5_status);
882 device_create_file(&new_client->dev, &dev_attr_in6_status);
883 device_create_file(&new_client->dev, &dev_attr_in7_status);
884 device_create_file(&new_client->dev, &dev_attr_in8_status);
885 device_create_file(&new_client->dev, &dev_attr_in9_status);
886 device_create_file(&new_client->dev, &dev_attr_in10_status);
887
888 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
889 device_create_file(&new_client->dev, &dev_attr_vrm);
890 device_create_file(&new_client->dev, &dev_attr_alarms_in);
891 }
892
893 if (data->tempnr) {
894 device_create_file(&new_client->dev, &dev_attr_temp1_input);
895 device_create_file(&new_client->dev, &dev_attr_temp2_input);
896 device_create_file(&new_client->dev, &dev_attr_temp1_min);
897 device_create_file(&new_client->dev, &dev_attr_temp2_min);
898 device_create_file(&new_client->dev, &dev_attr_temp1_max);
899 device_create_file(&new_client->dev, &dev_attr_temp2_max);
900 device_create_file(&new_client->dev, &dev_attr_temp1_crit);
901 device_create_file(&new_client->dev, &dev_attr_temp2_crit);
902 device_create_file(&new_client->dev, &dev_attr_temp1_status);
903 device_create_file(&new_client->dev, &dev_attr_temp2_status);
904
905 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
906 }
907 if (data->tempnr == 3) {
908 device_create_file(&new_client->dev, &dev_attr_temp3_input);
909 device_create_file(&new_client->dev, &dev_attr_temp3_min);
910 device_create_file(&new_client->dev, &dev_attr_temp3_max);
911 device_create_file(&new_client->dev, &dev_attr_temp3_crit);
912 device_create_file(&new_client->dev, &dev_attr_temp3_status);
913 }
914 if (data->innr == 14) {
915 device_create_file(&new_client->dev, &dev_attr_temp4_input);
916 device_create_file(&new_client->dev, &dev_attr_temp5_input);
917 device_create_file(&new_client->dev, &dev_attr_temp6_input);
918 device_create_file(&new_client->dev, &dev_attr_temp4_min);
919 device_create_file(&new_client->dev, &dev_attr_temp5_min);
920 device_create_file(&new_client->dev, &dev_attr_temp6_min);
921 device_create_file(&new_client->dev, &dev_attr_temp4_max);
922 device_create_file(&new_client->dev, &dev_attr_temp5_max);
923 device_create_file(&new_client->dev, &dev_attr_temp6_max);
924 device_create_file(&new_client->dev, &dev_attr_temp4_crit);
925 device_create_file(&new_client->dev, &dev_attr_temp5_crit);
926 device_create_file(&new_client->dev, &dev_attr_temp6_crit);
927 device_create_file(&new_client->dev, &dev_attr_temp4_status);
928 device_create_file(&new_client->dev, &dev_attr_temp5_status);
929 device_create_file(&new_client->dev, &dev_attr_temp6_status);
930 }
931
932 if (data->fannr) {
933 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
934 device_create_file(&new_client->dev,
935 &dev_attr_fan1_input);
936 device_create_file(&new_client->dev,
937 &dev_attr_fan1_min);
938 device_create_file(&new_client->dev,
939 &dev_attr_fan1_div);
940 device_create_file(&new_client->dev,
941 &dev_attr_fan1_status);
942 }
943
944 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
945 device_create_file(&new_client->dev,
946 &dev_attr_fan2_input);
947 device_create_file(&new_client->dev,
948 &dev_attr_fan2_min);
949 device_create_file(&new_client->dev,
950 &dev_attr_fan2_div);
951 device_create_file(&new_client->dev,
952 &dev_attr_fan2_status);
953 }
954
955 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
956 device_create_file(&new_client->dev, &dev_attr_pwm1);
957 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
958 device_create_file(&new_client->dev, &dev_attr_pwm2);
959 }
960 if (data->fannr == 3) {
961 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
962 device_create_file(&new_client->dev,
963 &dev_attr_fan3_input);
964 device_create_file(&new_client->dev,
965 &dev_attr_fan3_min);
966 device_create_file(&new_client->dev,
967 &dev_attr_fan3_div);
968 device_create_file(&new_client->dev,
969 &dev_attr_fan3_status);
970 }
971
972 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
973 device_create_file(&new_client->dev, &dev_attr_pwm3);
974 }
975
976 return 0;
977
978 ERROR2:
979 for (i = 0; i < 3; i++) {
980 if (data->address[i]) {
981 release_region(data->address[i], PC87360_EXTENT);
982 }
983 }
984 ERROR1:
985 kfree(data);
986 return err;
987 }
988
989 static int pc87360_detach_client(struct i2c_client *client)
990 {
991 struct pc87360_data *data = i2c_get_clientdata(client);
992 int i;
993
994 if ((i = i2c_detach_client(client))) {
995 dev_err(&client->dev, "Client deregistration failed, "
996 "client not detached.\n");
997 return i;
998 }
999
1000 for (i = 0; i < 3; i++) {
1001 if (data->address[i]) {
1002 release_region(data->address[i], PC87360_EXTENT);
1003 }
1004 }
1005 kfree(data);
1006
1007 return 0;
1008 }
1009
1010 /* ldi is the logical device index
1011 bank is for voltages and temperatures only */
1012 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1013 u8 reg)
1014 {
1015 int res;
1016
1017 down(&(data->lock));
1018 if (bank != NO_BANK)
1019 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1020 res = inb_p(data->address[ldi] + reg);
1021 up(&(data->lock));
1022
1023 return res;
1024 }
1025
1026 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1027 u8 reg, u8 value)
1028 {
1029 down(&(data->lock));
1030 if (bank != NO_BANK)
1031 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1032 outb_p(value, data->address[ldi] + reg);
1033 up(&(data->lock));
1034 }
1035
1036 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1037 {
1038 struct pc87360_data *data = i2c_get_clientdata(client);
1039 int i, nr;
1040 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1041 const u8 init_temp[3] = { 2, 2, 1 };
1042 u8 reg;
1043
1044 if (init >= 2 && data->innr) {
1045 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1046 PC87365_REG_IN_CONVRATE);
1047 dev_info(&client->dev, "VLM conversion set to"
1048 "1s period, 160us delay\n");
1049 pc87360_write_value(data, LD_IN, NO_BANK,
1050 PC87365_REG_IN_CONVRATE,
1051 (reg & 0xC0) | 0x11);
1052 }
1053
1054 nr = data->innr < 11 ? data->innr : 11;
1055 for (i=0; i<nr; i++) {
1056 if (init >= init_in[i]) {
1057 /* Forcibly enable voltage channel */
1058 reg = pc87360_read_value(data, LD_IN, i,
1059 PC87365_REG_IN_STATUS);
1060 if (!(reg & 0x01)) {
1061 dev_dbg(&client->dev, "Forcibly "
1062 "enabling in%d\n", i);
1063 pc87360_write_value(data, LD_IN, i,
1064 PC87365_REG_IN_STATUS,
1065 (reg & 0x68) | 0x87);
1066 }
1067 }
1068 }
1069
1070 /* We can't blindly trust the Super-I/O space configuration bit,
1071 most BIOS won't set it properly */
1072 for (i=11; i<data->innr; i++) {
1073 reg = pc87360_read_value(data, LD_IN, i,
1074 PC87365_REG_TEMP_STATUS);
1075 use_thermistors = use_thermistors || (reg & 0x01);
1076 }
1077
1078 i = use_thermistors ? 2 : 0;
1079 for (; i<data->tempnr; i++) {
1080 if (init >= init_temp[i]) {
1081 /* Forcibly enable temperature channel */
1082 reg = pc87360_read_value(data, LD_TEMP, i,
1083 PC87365_REG_TEMP_STATUS);
1084 if (!(reg & 0x01)) {
1085 dev_dbg(&client->dev, "Forcibly "
1086 "enabling temp%d\n", i+1);
1087 pc87360_write_value(data, LD_TEMP, i,
1088 PC87365_REG_TEMP_STATUS,
1089 0xCF);
1090 }
1091 }
1092 }
1093
1094 if (use_thermistors) {
1095 for (i=11; i<data->innr; i++) {
1096 if (init >= init_in[i]) {
1097 /* The pin may already be used by thermal
1098 diodes */
1099 reg = pc87360_read_value(data, LD_TEMP,
1100 (i-11)/2, PC87365_REG_TEMP_STATUS);
1101 if (reg & 0x01) {
1102 dev_dbg(&client->dev, "Skipping "
1103 "temp%d, pin already in use "
1104 "by temp%d\n", i-7, (i-11)/2);
1105 continue;
1106 }
1107
1108 /* Forcibly enable thermistor channel */
1109 reg = pc87360_read_value(data, LD_IN, i,
1110 PC87365_REG_IN_STATUS);
1111 if (!(reg & 0x01)) {
1112 dev_dbg(&client->dev, "Forcibly "
1113 "enabling temp%d\n", i-7);
1114 pc87360_write_value(data, LD_IN, i,
1115 PC87365_REG_TEMP_STATUS,
1116 (reg & 0x60) | 0x8F);
1117 }
1118 }
1119 }
1120 }
1121
1122 if (data->innr) {
1123 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1124 PC87365_REG_IN_CONFIG);
1125 if (reg & 0x01) {
1126 dev_dbg(&client->dev, "Forcibly "
1127 "enabling monitoring (VLM)\n");
1128 pc87360_write_value(data, LD_IN, NO_BANK,
1129 PC87365_REG_IN_CONFIG,
1130 reg & 0xFE);
1131 }
1132 }
1133
1134 if (data->tempnr) {
1135 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1136 PC87365_REG_TEMP_CONFIG);
1137 if (reg & 0x01) {
1138 dev_dbg(&client->dev, "Forcibly enabling "
1139 "monitoring (TMS)\n");
1140 pc87360_write_value(data, LD_TEMP, NO_BANK,
1141 PC87365_REG_TEMP_CONFIG,
1142 reg & 0xFE);
1143 }
1144
1145 if (init >= 2) {
1146 /* Chip config as documented by National Semi. */
1147 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1148 /* We voluntarily omit the bank here, in case the
1149 sequence itself matters. It shouldn't be a problem,
1150 since nobody else is supposed to access the
1151 device at that point. */
1152 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1153 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1154 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1155 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1156 }
1157 }
1158 }
1159
1160 static void pc87360_autodiv(struct i2c_client *client, int nr)
1161 {
1162 struct pc87360_data *data = i2c_get_clientdata(client);
1163 u8 old_min = data->fan_min[nr];
1164
1165 /* Increase clock divider if needed and possible */
1166 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1167 || (data->fan[nr] >= 224)) { /* next to overflow */
1168 if ((data->fan_status[nr] & 0x60) != 0x60) {
1169 data->fan_status[nr] += 0x20;
1170 data->fan_min[nr] >>= 1;
1171 data->fan[nr] >>= 1;
1172 dev_dbg(&client->dev, "Increasing "
1173 "clock divider to %d for fan %d\n",
1174 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1175 }
1176 } else {
1177 /* Decrease clock divider if possible */
1178 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1179 && data->fan[nr] < 85 /* bad accuracy */
1180 && (data->fan_status[nr] & 0x60) != 0x00) {
1181 data->fan_status[nr] -= 0x20;
1182 data->fan_min[nr] <<= 1;
1183 data->fan[nr] <<= 1;
1184 dev_dbg(&client->dev, "Decreasing "
1185 "clock divider to %d for fan %d\n",
1186 FAN_DIV_FROM_REG(data->fan_status[nr]),
1187 nr+1);
1188 }
1189 }
1190
1191 /* Write new fan min if it changed */
1192 if (old_min != data->fan_min[nr]) {
1193 pc87360_write_value(data, LD_FAN, NO_BANK,
1194 PC87360_REG_FAN_MIN(nr),
1195 data->fan_min[nr]);
1196 }
1197 }
1198
1199 static struct pc87360_data *pc87360_update_device(struct device *dev)
1200 {
1201 struct i2c_client *client = to_i2c_client(dev);
1202 struct pc87360_data *data = i2c_get_clientdata(client);
1203 u8 i;
1204
1205 down(&data->update_lock);
1206
1207 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1208 dev_dbg(&client->dev, "Data update\n");
1209
1210 /* Fans */
1211 for (i = 0; i < data->fannr; i++) {
1212 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1213 data->fan_status[i] =
1214 pc87360_read_value(data, LD_FAN,
1215 NO_BANK, PC87360_REG_FAN_STATUS(i));
1216 data->fan[i] = pc87360_read_value(data, LD_FAN,
1217 NO_BANK, PC87360_REG_FAN(i));
1218 data->fan_min[i] = pc87360_read_value(data,
1219 LD_FAN, NO_BANK,
1220 PC87360_REG_FAN_MIN(i));
1221 /* Change clock divider if needed */
1222 pc87360_autodiv(client, i);
1223 /* Clear bits and write new divider */
1224 pc87360_write_value(data, LD_FAN, NO_BANK,
1225 PC87360_REG_FAN_STATUS(i),
1226 data->fan_status[i]);
1227 }
1228 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1229 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1230 NO_BANK, PC87360_REG_PWM(i));
1231 }
1232
1233 /* Voltages */
1234 for (i = 0; i < data->innr; i++) {
1235 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1236 PC87365_REG_IN_STATUS);
1237 /* Clear bits */
1238 pc87360_write_value(data, LD_IN, i,
1239 PC87365_REG_IN_STATUS,
1240 data->in_status[i]);
1241 if ((data->in_status[i] & 0x81) == 0x81) {
1242 data->in[i] = pc87360_read_value(data, LD_IN,
1243 i, PC87365_REG_IN);
1244 }
1245 if (data->in_status[i] & 0x01) {
1246 data->in_min[i] = pc87360_read_value(data,
1247 LD_IN, i,
1248 PC87365_REG_IN_MIN);
1249 data->in_max[i] = pc87360_read_value(data,
1250 LD_IN, i,
1251 PC87365_REG_IN_MAX);
1252 if (i >= 11)
1253 data->in_crit[i-11] =
1254 pc87360_read_value(data, LD_IN,
1255 i, PC87365_REG_TEMP_CRIT);
1256 }
1257 }
1258 if (data->innr) {
1259 data->in_alarms = pc87360_read_value(data, LD_IN,
1260 NO_BANK, PC87365_REG_IN_ALARMS1)
1261 | ((pc87360_read_value(data, LD_IN,
1262 NO_BANK, PC87365_REG_IN_ALARMS2)
1263 & 0x07) << 8);
1264 data->vid = (data->vid_conf & 0xE0) ?
1265 pc87360_read_value(data, LD_IN,
1266 NO_BANK, PC87365_REG_VID) : 0x1F;
1267 }
1268
1269 /* Temperatures */
1270 for (i = 0; i < data->tempnr; i++) {
1271 data->temp_status[i] = pc87360_read_value(data,
1272 LD_TEMP, i,
1273 PC87365_REG_TEMP_STATUS);
1274 /* Clear bits */
1275 pc87360_write_value(data, LD_TEMP, i,
1276 PC87365_REG_TEMP_STATUS,
1277 data->temp_status[i]);
1278 if ((data->temp_status[i] & 0x81) == 0x81) {
1279 data->temp[i] = pc87360_read_value(data,
1280 LD_TEMP, i,
1281 PC87365_REG_TEMP);
1282 }
1283 if (data->temp_status[i] & 0x01) {
1284 data->temp_min[i] = pc87360_read_value(data,
1285 LD_TEMP, i,
1286 PC87365_REG_TEMP_MIN);
1287 data->temp_max[i] = pc87360_read_value(data,
1288 LD_TEMP, i,
1289 PC87365_REG_TEMP_MAX);
1290 data->temp_crit[i] = pc87360_read_value(data,
1291 LD_TEMP, i,
1292 PC87365_REG_TEMP_CRIT);
1293 }
1294 }
1295 if (data->tempnr) {
1296 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1297 NO_BANK, PC87365_REG_TEMP_ALARMS)
1298 & 0x3F;
1299 }
1300
1301 data->last_updated = jiffies;
1302 data->valid = 1;
1303 }
1304
1305 up(&data->update_lock);
1306
1307 return data;
1308 }
1309
1310 static int __init pc87360_init(void)
1311 {
1312 int i;
1313
1314 if (pc87360_find(0x2e, &devid, extra_isa)
1315 && pc87360_find(0x4e, &devid, extra_isa)) {
1316 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1317 "module not inserted.\n");
1318 return -ENODEV;
1319 }
1320
1321 /* Arbitrarily pick one of the addresses */
1322 for (i = 0; i < 3; i++) {
1323 if (extra_isa[i] != 0x0000) {
1324 normal_isa[0] = extra_isa[i];
1325 break;
1326 }
1327 }
1328
1329 if (normal_isa[0] == 0x0000) {
1330 printk(KERN_WARNING "pc87360: No active logical device, "
1331 "module not inserted.\n");
1332 return -ENODEV;
1333 }
1334
1335 return i2c_add_driver(&pc87360_driver);
1336 }
1337
1338 static void __exit pc87360_exit(void)
1339 {
1340 i2c_del_driver(&pc87360_driver);
1341 }
1342
1343
1344 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1345 MODULE_DESCRIPTION("PC8736x hardware monitor");
1346 MODULE_LICENSE("GPL");
1347
1348 module_init(pc87360_init);
1349 module_exit(pc87360_exit);
Linux kernel - Deliverables
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