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[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (3/9)
[linux-2.6/btrfs-unstable.git] / drivers / hwmon / pc87360.c
blob97ffe5b5cf8372cd16014a2672135b3f29555137
1 /*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Supports the following chips:
24 *
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
31 *
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
34 */
35
36 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/slab.h>
39 #include <linux/jiffies.h>
40 #include <linux/i2c.h>
41 #include <linux/i2c-isa.h>
42 #include <linux/i2c-sensor.h>
43 #include <linux/i2c-vid.h>
44 #include <linux/hwmon.h>
45 #include <linux/err.h>
46 #include <asm/io.h>
47
48 static unsigned short normal_i2c[] = { I2C_CLIENT_END };
49 static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
50 static struct i2c_force_data forces[] = {{ NULL }};
51 static u8 devid;
52 static unsigned int extra_isa[3];
53 static u8 confreg[4];
54
55 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
56 static struct i2c_address_data addr_data = {
57 .normal_i2c = normal_i2c,
58 .normal_isa = normal_isa,
59 .forces = forces,
60 };
61
62 static int init = 1;
63 module_param(init, int, 0);
64 MODULE_PARM_DESC(init,
65 "Chip initialization level:\n"
66 " 0: None\n"
67 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
68 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
69 " 3: Forcibly enable all voltage and temperature channels, including in9");
70
71 /*
72 * Super-I/O registers and operations
73 */
74
75 #define DEV 0x07 /* Register: Logical device select */
76 #define DEVID 0x20 /* Register: Device ID */
77 #define ACT 0x30 /* Register: Device activation */
78 #define BASE 0x60 /* Register: Base address */
79
80 #define FSCM 0x09 /* Logical device: fans */
81 #define VLM 0x0d /* Logical device: voltages */
82 #define TMS 0x0e /* Logical device: temperatures */
83 static const u8 logdev[3] = { FSCM, VLM, TMS };
84
85 #define LD_FAN 0
86 #define LD_IN 1
87 #define LD_TEMP 2
88
89 static inline void superio_outb(int sioaddr, int reg, int val)
90 {
91 outb(reg, sioaddr);
92 outb(val, sioaddr+1);
93 }
94
95 static inline int superio_inb(int sioaddr, int reg)
96 {
97 outb(reg, sioaddr);
98 return inb(sioaddr+1);
99 }
100
101 static inline void superio_exit(int sioaddr)
102 {
103 outb(0x02, sioaddr);
104 outb(0x02, sioaddr+1);
105 }
106
107 /*
108 * Logical devices
109 */
110
111 #define PC87360_EXTENT 0x10
112 #define PC87365_REG_BANK 0x09
113 #define NO_BANK 0xff
114
115 /*
116 * Fan registers and conversions
117 */
118
119 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
120 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
121 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
122 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
123 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
124 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
125
126 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
127 480000 / ((val)*(div)))
128 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
129 480000 / ((val)*(div)))
130 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
131 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
132
133 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
134 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
135 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
136
137 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
138 static inline u8 PWM_TO_REG(int val, int inv)
139 {
140 if (inv)
141 val = 255 - val;
142 if (val < 0)
143 return 0;
144 if (val > 255)
145 return 255;
146 return val;
147 }
148
149 /*
150 * Voltage registers and conversions
151 */
152
153 #define PC87365_REG_IN_CONVRATE 0x07
154 #define PC87365_REG_IN_CONFIG 0x08
155 #define PC87365_REG_IN 0x0B
156 #define PC87365_REG_IN_MIN 0x0D
157 #define PC87365_REG_IN_MAX 0x0C
158 #define PC87365_REG_IN_STATUS 0x0A
159 #define PC87365_REG_IN_ALARMS1 0x00
160 #define PC87365_REG_IN_ALARMS2 0x01
161 #define PC87365_REG_VID 0x06
162
163 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
164 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
165 (val)*256 >= (ref)*255 ? 255: \
166 ((val) * 256 + (ref)/2) / (ref))
167
168 /*
169 * Temperature registers and conversions
170 */
171
172 #define PC87365_REG_TEMP_CONFIG 0x08
173 #define PC87365_REG_TEMP 0x0B
174 #define PC87365_REG_TEMP_MIN 0x0D
175 #define PC87365_REG_TEMP_MAX 0x0C
176 #define PC87365_REG_TEMP_CRIT 0x0E
177 #define PC87365_REG_TEMP_STATUS 0x0A
178 #define PC87365_REG_TEMP_ALARMS 0x00
179
180 #define TEMP_FROM_REG(val) ((val) * 1000)
181 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
182 (val) > 127000 ? 127 : \
183 (val) < 0 ? ((val) - 500) / 1000 : \
184 ((val) + 500) / 1000)
185
186 /*
187 * Client data (each client gets its own)
188 */
189
190 struct pc87360_data {
191 struct i2c_client client;
192 struct class_device *class_dev;
193 struct semaphore lock;
194 struct semaphore update_lock;
195 char valid; /* !=0 if following fields are valid */
196 unsigned long last_updated; /* In jiffies */
197
198 int address[3];
199
200 u8 fannr, innr, tempnr;
201
202 u8 fan[3]; /* Register value */
203 u8 fan_min[3]; /* Register value */
204 u8 fan_status[3]; /* Register value */
205 u8 pwm[3]; /* Register value */
206 u16 fan_conf; /* Configuration register values, combined */
207
208 u16 in_vref; /* 1 mV/bit */
209 u8 in[14]; /* Register value */
210 u8 in_min[14]; /* Register value */
211 u8 in_max[14]; /* Register value */
212 u8 in_crit[3]; /* Register value */
213 u8 in_status[14]; /* Register value */
214 u16 in_alarms; /* Register values, combined, masked */
215 u8 vid_conf; /* Configuration register value */
216 u8 vrm;
217 u8 vid; /* Register value */
218
219 s8 temp[3]; /* Register value */
220 s8 temp_min[3]; /* Register value */
221 s8 temp_max[3]; /* Register value */
222 s8 temp_crit[3]; /* Register value */
223 u8 temp_status[3]; /* Register value */
224 u8 temp_alarms; /* Register value, masked */
225 };
226
227 /*
228 * Functions declaration
229 */
230
231 static int pc87360_attach_adapter(struct i2c_adapter *adapter);
232 static int pc87360_detect(struct i2c_adapter *adapter, int address, int kind);
233 static int pc87360_detach_client(struct i2c_client *client);
234
235 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
236 u8 reg);
237 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
238 u8 reg, u8 value);
239 static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
240 static struct pc87360_data *pc87360_update_device(struct device *dev);
241
242 /*
243 * Driver data (common to all clients)
244 */
245
246 static struct i2c_driver pc87360_driver = {
247 .owner = THIS_MODULE,
248 .name = "pc87360",
249 .flags = I2C_DF_NOTIFY,
250 .attach_adapter = pc87360_attach_adapter,
251 .detach_client = pc87360_detach_client,
252 };
253
254 /*
255 * Sysfs stuff
256 */
257
258 static ssize_t set_fan_min(struct device *dev, const char *buf,
259 size_t count, int nr)
260 {
261 struct i2c_client *client = to_i2c_client(dev);
262 struct pc87360_data *data = i2c_get_clientdata(client);
263 long fan_min = simple_strtol(buf, NULL, 10);
264
265 down(&data->update_lock);
266 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[nr]));
267
268 /* If it wouldn't fit, change clock divisor */
269 while (fan_min > 255
270 && (data->fan_status[nr] & 0x60) != 0x60) {
271 fan_min >>= 1;
272 data->fan[nr] >>= 1;
273 data->fan_status[nr] += 0x20;
274 }
275 data->fan_min[nr] = fan_min > 255 ? 255 : fan_min;
276 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(nr),
277 data->fan_min[nr]);
278
279 /* Write new divider, preserve alarm bits */
280 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(nr),
281 data->fan_status[nr] & 0xF9);
282 up(&data->update_lock);
283
284 return count;
285 }
286
287 #define show_and_set_fan(offset) \
288 static ssize_t show_fan##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
289 { \
290 struct pc87360_data *data = pc87360_update_device(dev); \
291 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[offset-1], \
292 FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
293 } \
294 static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
295 { \
296 struct pc87360_data *data = pc87360_update_device(dev); \
297 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[offset-1], \
298 FAN_DIV_FROM_REG(data->fan_status[offset-1]))); \
299 } \
300 static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \
301 { \
302 struct pc87360_data *data = pc87360_update_device(dev); \
303 return sprintf(buf, "%u\n", \
304 FAN_DIV_FROM_REG(data->fan_status[offset-1])); \
305 } \
306 static ssize_t show_fan##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
307 { \
308 struct pc87360_data *data = pc87360_update_device(dev); \
309 return sprintf(buf, "%u\n", \
310 FAN_STATUS_FROM_REG(data->fan_status[offset-1])); \
311 } \
312 static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
313 size_t count) \
314 { \
315 return set_fan_min(dev, buf, count, offset-1); \
316 } \
317 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
318 show_fan##offset##_input, NULL); \
319 static DEVICE_ATTR(fan##offset##_min, S_IWUSR | S_IRUGO, \
320 show_fan##offset##_min, set_fan##offset##_min); \
321 static DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
322 show_fan##offset##_div, NULL); \
323 static DEVICE_ATTR(fan##offset##_status, S_IRUGO, \
324 show_fan##offset##_status, NULL);
325 show_and_set_fan(1)
326 show_and_set_fan(2)
327 show_and_set_fan(3)
328
329 #define show_and_set_pwm(offset) \
330 static ssize_t show_pwm##offset(struct device *dev, struct device_attribute *attr, char *buf) \
331 { \
332 struct pc87360_data *data = pc87360_update_device(dev); \
333 return sprintf(buf, "%u\n", \
334 PWM_FROM_REG(data->pwm[offset-1], \
335 FAN_CONFIG_INVERT(data->fan_conf, \
336 offset-1))); \
337 } \
338 static ssize_t set_pwm##offset(struct device *dev, struct device_attribute *attr, const char *buf, \
339 size_t count) \
340 { \
341 struct i2c_client *client = to_i2c_client(dev); \
342 struct pc87360_data *data = i2c_get_clientdata(client); \
343 long val = simple_strtol(buf, NULL, 10); \
344 \
345 down(&data->update_lock); \
346 data->pwm[offset-1] = PWM_TO_REG(val, \
347 FAN_CONFIG_INVERT(data->fan_conf, offset-1)); \
348 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(offset-1), \
349 data->pwm[offset-1]); \
350 up(&data->update_lock); \
351 return count; \
352 } \
353 static DEVICE_ATTR(pwm##offset, S_IWUSR | S_IRUGO, \
354 show_pwm##offset, set_pwm##offset);
355 show_and_set_pwm(1)
356 show_and_set_pwm(2)
357 show_and_set_pwm(3)
358
359 #define show_and_set_in(offset) \
360 static ssize_t show_in##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
361 { \
362 struct pc87360_data *data = pc87360_update_device(dev); \
363 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
364 data->in_vref)); \
365 } \
366 static ssize_t show_in##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
367 { \
368 struct pc87360_data *data = pc87360_update_device(dev); \
369 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
370 data->in_vref)); \
371 } \
372 static ssize_t show_in##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
373 { \
374 struct pc87360_data *data = pc87360_update_device(dev); \
375 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
376 data->in_vref)); \
377 } \
378 static ssize_t show_in##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
379 { \
380 struct pc87360_data *data = pc87360_update_device(dev); \
381 return sprintf(buf, "%u\n", data->in_status[offset]); \
382 } \
383 static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
384 size_t count) \
385 { \
386 struct i2c_client *client = to_i2c_client(dev); \
387 struct pc87360_data *data = i2c_get_clientdata(client); \
388 long val = simple_strtol(buf, NULL, 10); \
389 \
390 down(&data->update_lock); \
391 data->in_min[offset] = IN_TO_REG(val, data->in_vref); \
392 pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MIN, \
393 data->in_min[offset]); \
394 up(&data->update_lock); \
395 return count; \
396 } \
397 static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
398 size_t count) \
399 { \
400 struct i2c_client *client = to_i2c_client(dev); \
401 struct pc87360_data *data = i2c_get_clientdata(client); \
402 long val = simple_strtol(buf, NULL, 10); \
403 \
404 down(&data->update_lock); \
405 data->in_max[offset] = IN_TO_REG(val, \
406 data->in_vref); \
407 pc87360_write_value(data, LD_IN, offset, PC87365_REG_IN_MAX, \
408 data->in_max[offset]); \
409 up(&data->update_lock); \
410 return count; \
411 } \
412 static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
413 show_in##offset##_input, NULL); \
414 static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
415 show_in##offset##_min, set_in##offset##_min); \
416 static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
417 show_in##offset##_max, set_in##offset##_max); \
418 static DEVICE_ATTR(in##offset##_status, S_IRUGO, \
419 show_in##offset##_status, NULL);
420 show_and_set_in(0)
421 show_and_set_in(1)
422 show_and_set_in(2)
423 show_and_set_in(3)
424 show_and_set_in(4)
425 show_and_set_in(5)
426 show_and_set_in(6)
427 show_and_set_in(7)
428 show_and_set_in(8)
429 show_and_set_in(9)
430 show_and_set_in(10)
431
432 #define show_and_set_therm(offset) \
433 static ssize_t show_temp##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
434 { \
435 struct pc87360_data *data = pc87360_update_device(dev); \
436 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset+7], \
437 data->in_vref)); \
438 } \
439 static ssize_t show_temp##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
440 { \
441 struct pc87360_data *data = pc87360_update_device(dev); \
442 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset+7], \
443 data->in_vref)); \
444 } \
445 static ssize_t show_temp##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
446 { \
447 struct pc87360_data *data = pc87360_update_device(dev); \
448 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset+7], \
449 data->in_vref)); \
450 } \
451 static ssize_t show_temp##offset##_crit(struct device *dev, struct device_attribute *attr, char *buf) \
452 { \
453 struct pc87360_data *data = pc87360_update_device(dev); \
454 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[offset-4], \
455 data->in_vref)); \
456 } \
457 static ssize_t show_temp##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
458 { \
459 struct pc87360_data *data = pc87360_update_device(dev); \
460 return sprintf(buf, "%u\n", data->in_status[offset+7]); \
461 } \
462 static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
463 size_t count) \
464 { \
465 struct i2c_client *client = to_i2c_client(dev); \
466 struct pc87360_data *data = i2c_get_clientdata(client); \
467 long val = simple_strtol(buf, NULL, 10); \
468 \
469 down(&data->update_lock); \
470 data->in_min[offset+7] = IN_TO_REG(val, data->in_vref); \
471 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MIN, \
472 data->in_min[offset+7]); \
473 up(&data->update_lock); \
474 return count; \
475 } \
476 static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
477 size_t count) \
478 { \
479 struct i2c_client *client = to_i2c_client(dev); \
480 struct pc87360_data *data = i2c_get_clientdata(client); \
481 long val = simple_strtol(buf, NULL, 10); \
482 \
483 down(&data->update_lock); \
484 data->in_max[offset+7] = IN_TO_REG(val, data->in_vref); \
485 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_MAX, \
486 data->in_max[offset+7]); \
487 up(&data->update_lock); \
488 return count; \
489 } \
490 static ssize_t set_temp##offset##_crit(struct device *dev, struct device_attribute *attr, const char *buf, \
491 size_t count) \
492 { \
493 struct i2c_client *client = to_i2c_client(dev); \
494 struct pc87360_data *data = i2c_get_clientdata(client); \
495 long val = simple_strtol(buf, NULL, 10); \
496 \
497 down(&data->update_lock); \
498 data->in_crit[offset-4] = IN_TO_REG(val, data->in_vref); \
499 pc87360_write_value(data, LD_IN, offset+7, PC87365_REG_TEMP_CRIT, \
500 data->in_crit[offset-4]); \
501 up(&data->update_lock); \
502 return count; \
503 } \
504 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
505 show_temp##offset##_input, NULL); \
506 static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
507 show_temp##offset##_min, set_temp##offset##_min); \
508 static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
509 show_temp##offset##_max, set_temp##offset##_max); \
510 static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
511 show_temp##offset##_crit, set_temp##offset##_crit); \
512 static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
513 show_temp##offset##_status, NULL);
514 show_and_set_therm(4)
515 show_and_set_therm(5)
516 show_and_set_therm(6)
517
518 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
519 {
520 struct pc87360_data *data = pc87360_update_device(dev);
521 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
522 }
523 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
524
525 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
526 {
527 struct pc87360_data *data = pc87360_update_device(dev);
528 return sprintf(buf, "%u\n", data->vrm);
529 }
530 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
531 {
532 struct i2c_client *client = to_i2c_client(dev);
533 struct pc87360_data *data = i2c_get_clientdata(client);
534 data->vrm = simple_strtoul(buf, NULL, 10);
535 return count;
536 }
537 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
538
539 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
540 {
541 struct pc87360_data *data = pc87360_update_device(dev);
542 return sprintf(buf, "%u\n", data->in_alarms);
543 }
544 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
545
546 #define show_and_set_temp(offset) \
547 static ssize_t show_temp##offset##_input(struct device *dev, struct device_attribute *attr, char *buf) \
548 { \
549 struct pc87360_data *data = pc87360_update_device(dev); \
550 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
551 } \
552 static ssize_t show_temp##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
553 { \
554 struct pc87360_data *data = pc87360_update_device(dev); \
555 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
556 } \
557 static ssize_t show_temp##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
558 { \
559 struct pc87360_data *data = pc87360_update_device(dev); \
560 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
561 }\
562 static ssize_t show_temp##offset##_crit(struct device *dev, struct device_attribute *attr, char *buf) \
563 { \
564 struct pc87360_data *data = pc87360_update_device(dev); \
565 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[offset-1])); \
566 }\
567 static ssize_t show_temp##offset##_status(struct device *dev, struct device_attribute *attr, char *buf) \
568 { \
569 struct pc87360_data *data = pc87360_update_device(dev); \
570 return sprintf(buf, "%d\n", data->temp_status[offset-1]); \
571 }\
572 static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
573 size_t count) \
574 { \
575 struct i2c_client *client = to_i2c_client(dev); \
576 struct pc87360_data *data = i2c_get_clientdata(client); \
577 long val = simple_strtol(buf, NULL, 10); \
578 \
579 down(&data->update_lock); \
580 data->temp_min[offset-1] = TEMP_TO_REG(val); \
581 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MIN, \
582 data->temp_min[offset-1]); \
583 up(&data->update_lock); \
584 return count; \
585 } \
586 static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
587 size_t count) \
588 { \
589 struct i2c_client *client = to_i2c_client(dev); \
590 struct pc87360_data *data = i2c_get_clientdata(client); \
591 long val = simple_strtol(buf, NULL, 10); \
592 \
593 down(&data->update_lock); \
594 data->temp_max[offset-1] = TEMP_TO_REG(val); \
595 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_MAX, \
596 data->temp_max[offset-1]); \
597 up(&data->update_lock); \
598 return count; \
599 } \
600 static ssize_t set_temp##offset##_crit(struct device *dev, struct device_attribute *attr, const char *buf, \
601 size_t count) \
602 { \
603 struct i2c_client *client = to_i2c_client(dev); \
604 struct pc87360_data *data = i2c_get_clientdata(client); \
605 long val = simple_strtol(buf, NULL, 10); \
606 \
607 down(&data->update_lock); \
608 data->temp_crit[offset-1] = TEMP_TO_REG(val); \
609 pc87360_write_value(data, LD_TEMP, offset-1, PC87365_REG_TEMP_CRIT, \
610 data->temp_crit[offset-1]); \
611 up(&data->update_lock); \
612 return count; \
613 } \
614 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
615 show_temp##offset##_input, NULL); \
616 static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
617 show_temp##offset##_min, set_temp##offset##_min); \
618 static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
619 show_temp##offset##_max, set_temp##offset##_max); \
620 static DEVICE_ATTR(temp##offset##_crit, S_IWUSR | S_IRUGO, \
621 show_temp##offset##_crit, set_temp##offset##_crit); \
622 static DEVICE_ATTR(temp##offset##_status, S_IRUGO, \
623 show_temp##offset##_status, NULL);
624 show_and_set_temp(1)
625 show_and_set_temp(2)
626 show_and_set_temp(3)
627
628 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
629 {
630 struct pc87360_data *data = pc87360_update_device(dev);
631 return sprintf(buf, "%u\n", data->temp_alarms);
632 }
633 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
634
635 /*
636 * Device detection, registration and update
637 */
638
639 static int pc87360_attach_adapter(struct i2c_adapter *adapter)
640 {
641 return i2c_detect(adapter, &addr_data, pc87360_detect);
642 }
643
644 static int pc87360_find(int sioaddr, u8 *devid, int *address)
645 {
646 u16 val;
647 int i;
648 int nrdev; /* logical device count */
649
650 /* No superio_enter */
651
652 /* Identify device */
653 val = superio_inb(sioaddr, DEVID);
654 switch (val) {
655 case 0xE1: /* PC87360 */
656 case 0xE8: /* PC87363 */
657 case 0xE4: /* PC87364 */
658 nrdev = 1;
659 break;
660 case 0xE5: /* PC87365 */
661 case 0xE9: /* PC87366 */
662 nrdev = 3;
663 break;
664 default:
665 superio_exit(sioaddr);
666 return -ENODEV;
667 }
668 /* Remember the device id */
669 *devid = val;
670
671 for (i = 0; i < nrdev; i++) {
672 /* select logical device */
673 superio_outb(sioaddr, DEV, logdev[i]);
674
675 val = superio_inb(sioaddr, ACT);
676 if (!(val & 0x01)) {
677 printk(KERN_INFO "pc87360: Device 0x%02x not "
678 "activated\n", logdev[i]);
679 continue;
680 }
681
682 val = (superio_inb(sioaddr, BASE) << 8)
683 | superio_inb(sioaddr, BASE + 1);
684 if (!val) {
685 printk(KERN_INFO "pc87360: Base address not set for "
686 "device 0x%02x\n", logdev[i]);
687 continue;
688 }
689
690 address[i] = val;
691
692 if (i==0) { /* Fans */
693 confreg[0] = superio_inb(sioaddr, 0xF0);
694 confreg[1] = superio_inb(sioaddr, 0xF1);
695
696 #ifdef DEBUG
697 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
698 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
699 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
700 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
701 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
702 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
703 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
704 "ctrl=%d inv=%d\n", confreg[1]&1,
705 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
706 #endif
707 } else if (i==1) { /* Voltages */
708 /* Are we using thermistors? */
709 if (*devid == 0xE9) { /* PC87366 */
710 /* These registers are not logical-device
711 specific, just that we won't need them if
712 we don't use the VLM device */
713 confreg[2] = superio_inb(sioaddr, 0x2B);
714 confreg[3] = superio_inb(sioaddr, 0x25);
715
716 if (confreg[2] & 0x40) {
717 printk(KERN_INFO "pc87360: Using "
718 "thermistors for temperature "
719 "monitoring\n");
720 }
721 if (confreg[3] & 0xE0) {
722 printk(KERN_INFO "pc87360: VID "
723 "inputs routed (mode %u)\n",
724 confreg[3] >> 5);
725 }
726 }
727 }
728 }
729
730 superio_exit(sioaddr);
731 return 0;
732 }
733
734 /* We don't really care about the address.
735 Read from extra_isa instead. */
736 int pc87360_detect(struct i2c_adapter *adapter, int address, int kind)
737 {
738 int i;
739 struct i2c_client *new_client;
740 struct pc87360_data *data;
741 int err = 0;
742 const char *name = "pc87360";
743 int use_thermistors = 0;
744
745 if (!i2c_is_isa_adapter(adapter))
746 return -ENODEV;
747
748 if (!(data = kmalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
749 return -ENOMEM;
750 memset(data, 0x00, sizeof(struct pc87360_data));
751
752 new_client = &data->client;
753 i2c_set_clientdata(new_client, data);
754 new_client->addr = address;
755 init_MUTEX(&data->lock);
756 new_client->adapter = adapter;
757 new_client->driver = &pc87360_driver;
758 new_client->flags = 0;
759
760 data->fannr = 2;
761 data->innr = 0;
762 data->tempnr = 0;
763
764 switch (devid) {
765 case 0xe8:
766 name = "pc87363";
767 break;
768 case 0xe4:
769 name = "pc87364";
770 data->fannr = 3;
771 break;
772 case 0xe5:
773 name = "pc87365";
774 data->fannr = extra_isa[0] ? 3 : 0;
775 data->innr = extra_isa[1] ? 11 : 0;
776 data->tempnr = extra_isa[2] ? 2 : 0;
777 break;
778 case 0xe9:
779 name = "pc87366";
780 data->fannr = extra_isa[0] ? 3 : 0;
781 data->innr = extra_isa[1] ? 14 : 0;
782 data->tempnr = extra_isa[2] ? 3 : 0;
783 break;
784 }
785
786 strcpy(new_client->name, name);
787 data->valid = 0;
788 init_MUTEX(&data->update_lock);
789
790 for (i = 0; i < 3; i++) {
791 if (((data->address[i] = extra_isa[i]))
792 && !request_region(extra_isa[i], PC87360_EXTENT,
793 pc87360_driver.name)) {
794 dev_err(&new_client->dev, "Region 0x%x-0x%x already "
795 "in use!\n", extra_isa[i],
796 extra_isa[i]+PC87360_EXTENT-1);
797 for (i--; i >= 0; i--)
798 release_region(extra_isa[i], PC87360_EXTENT);
799 err = -EBUSY;
800 goto ERROR1;
801 }
802 }
803
804 /* Retrieve the fans configuration from Super-I/O space */
805 if (data->fannr)
806 data->fan_conf = confreg[0] | (confreg[1] << 8);
807
808 if ((err = i2c_attach_client(new_client)))
809 goto ERROR2;
810
811 /* Use the correct reference voltage
812 Unless both the VLM and the TMS logical devices agree to
813 use an external Vref, the internal one is used. */
814 if (data->innr) {
815 i = pc87360_read_value(data, LD_IN, NO_BANK,
816 PC87365_REG_IN_CONFIG);
817 if (data->tempnr) {
818 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
819 PC87365_REG_TEMP_CONFIG);
820 }
821 data->in_vref = (i&0x02) ? 3025 : 2966;
822 dev_dbg(&new_client->dev, "Using %s reference voltage\n",
823 (i&0x02) ? "external" : "internal");
824
825 data->vid_conf = confreg[3];
826 data->vrm = 90;
827 }
828
829 /* Fan clock dividers may be needed before any data is read */
830 for (i = 0; i < data->fannr; i++) {
831 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
832 data->fan_status[i] = pc87360_read_value(data,
833 LD_FAN, NO_BANK,
834 PC87360_REG_FAN_STATUS(i));
835 }
836
837 if (init > 0) {
838 if (devid == 0xe9 && data->address[1]) /* PC87366 */
839 use_thermistors = confreg[2] & 0x40;
840
841 pc87360_init_client(new_client, use_thermistors);
842 }
843
844 /* Register sysfs hooks */
845 data->class_dev = hwmon_device_register(&new_client->dev);
846 if (IS_ERR(data->class_dev)) {
847 err = PTR_ERR(data->class_dev);
848 goto ERROR3;
849 }
850
851 if (data->innr) {
852 device_create_file(&new_client->dev, &dev_attr_in0_input);
853 device_create_file(&new_client->dev, &dev_attr_in1_input);
854 device_create_file(&new_client->dev, &dev_attr_in2_input);
855 device_create_file(&new_client->dev, &dev_attr_in3_input);
856 device_create_file(&new_client->dev, &dev_attr_in4_input);
857 device_create_file(&new_client->dev, &dev_attr_in5_input);
858 device_create_file(&new_client->dev, &dev_attr_in6_input);
859 device_create_file(&new_client->dev, &dev_attr_in7_input);
860 device_create_file(&new_client->dev, &dev_attr_in8_input);
861 device_create_file(&new_client->dev, &dev_attr_in9_input);
862 device_create_file(&new_client->dev, &dev_attr_in10_input);
863 device_create_file(&new_client->dev, &dev_attr_in0_min);
864 device_create_file(&new_client->dev, &dev_attr_in1_min);
865 device_create_file(&new_client->dev, &dev_attr_in2_min);
866 device_create_file(&new_client->dev, &dev_attr_in3_min);
867 device_create_file(&new_client->dev, &dev_attr_in4_min);
868 device_create_file(&new_client->dev, &dev_attr_in5_min);
869 device_create_file(&new_client->dev, &dev_attr_in6_min);
870 device_create_file(&new_client->dev, &dev_attr_in7_min);
871 device_create_file(&new_client->dev, &dev_attr_in8_min);
872 device_create_file(&new_client->dev, &dev_attr_in9_min);
873 device_create_file(&new_client->dev, &dev_attr_in10_min);
874 device_create_file(&new_client->dev, &dev_attr_in0_max);
875 device_create_file(&new_client->dev, &dev_attr_in1_max);
876 device_create_file(&new_client->dev, &dev_attr_in2_max);
877 device_create_file(&new_client->dev, &dev_attr_in3_max);
878 device_create_file(&new_client->dev, &dev_attr_in4_max);
879 device_create_file(&new_client->dev, &dev_attr_in5_max);
880 device_create_file(&new_client->dev, &dev_attr_in6_max);
881 device_create_file(&new_client->dev, &dev_attr_in7_max);
882 device_create_file(&new_client->dev, &dev_attr_in8_max);
883 device_create_file(&new_client->dev, &dev_attr_in9_max);
884 device_create_file(&new_client->dev, &dev_attr_in10_max);
885 device_create_file(&new_client->dev, &dev_attr_in0_status);
886 device_create_file(&new_client->dev, &dev_attr_in1_status);
887 device_create_file(&new_client->dev, &dev_attr_in2_status);
888 device_create_file(&new_client->dev, &dev_attr_in3_status);
889 device_create_file(&new_client->dev, &dev_attr_in4_status);
890 device_create_file(&new_client->dev, &dev_attr_in5_status);
891 device_create_file(&new_client->dev, &dev_attr_in6_status);
892 device_create_file(&new_client->dev, &dev_attr_in7_status);
893 device_create_file(&new_client->dev, &dev_attr_in8_status);
894 device_create_file(&new_client->dev, &dev_attr_in9_status);
895 device_create_file(&new_client->dev, &dev_attr_in10_status);
896
897 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
898 device_create_file(&new_client->dev, &dev_attr_vrm);
899 device_create_file(&new_client->dev, &dev_attr_alarms_in);
900 }
901
902 if (data->tempnr) {
903 device_create_file(&new_client->dev, &dev_attr_temp1_input);
904 device_create_file(&new_client->dev, &dev_attr_temp2_input);
905 device_create_file(&new_client->dev, &dev_attr_temp1_min);
906 device_create_file(&new_client->dev, &dev_attr_temp2_min);
907 device_create_file(&new_client->dev, &dev_attr_temp1_max);
908 device_create_file(&new_client->dev, &dev_attr_temp2_max);
909 device_create_file(&new_client->dev, &dev_attr_temp1_crit);
910 device_create_file(&new_client->dev, &dev_attr_temp2_crit);
911 device_create_file(&new_client->dev, &dev_attr_temp1_status);
912 device_create_file(&new_client->dev, &dev_attr_temp2_status);
913
914 device_create_file(&new_client->dev, &dev_attr_alarms_temp);
915 }
916 if (data->tempnr == 3) {
917 device_create_file(&new_client->dev, &dev_attr_temp3_input);
918 device_create_file(&new_client->dev, &dev_attr_temp3_min);
919 device_create_file(&new_client->dev, &dev_attr_temp3_max);
920 device_create_file(&new_client->dev, &dev_attr_temp3_crit);
921 device_create_file(&new_client->dev, &dev_attr_temp3_status);
922 }
923 if (data->innr == 14) {
924 device_create_file(&new_client->dev, &dev_attr_temp4_input);
925 device_create_file(&new_client->dev, &dev_attr_temp5_input);
926 device_create_file(&new_client->dev, &dev_attr_temp6_input);
927 device_create_file(&new_client->dev, &dev_attr_temp4_min);
928 device_create_file(&new_client->dev, &dev_attr_temp5_min);
929 device_create_file(&new_client->dev, &dev_attr_temp6_min);
930 device_create_file(&new_client->dev, &dev_attr_temp4_max);
931 device_create_file(&new_client->dev, &dev_attr_temp5_max);
932 device_create_file(&new_client->dev, &dev_attr_temp6_max);
933 device_create_file(&new_client->dev, &dev_attr_temp4_crit);
934 device_create_file(&new_client->dev, &dev_attr_temp5_crit);
935 device_create_file(&new_client->dev, &dev_attr_temp6_crit);
936 device_create_file(&new_client->dev, &dev_attr_temp4_status);
937 device_create_file(&new_client->dev, &dev_attr_temp5_status);
938 device_create_file(&new_client->dev, &dev_attr_temp6_status);
939 }
940
941 if (data->fannr) {
942 if (FAN_CONFIG_MONITOR(data->fan_conf, 0)) {
943 device_create_file(&new_client->dev,
944 &dev_attr_fan1_input);
945 device_create_file(&new_client->dev,
946 &dev_attr_fan1_min);
947 device_create_file(&new_client->dev,
948 &dev_attr_fan1_div);
949 device_create_file(&new_client->dev,
950 &dev_attr_fan1_status);
951 }
952
953 if (FAN_CONFIG_MONITOR(data->fan_conf, 1)) {
954 device_create_file(&new_client->dev,
955 &dev_attr_fan2_input);
956 device_create_file(&new_client->dev,
957 &dev_attr_fan2_min);
958 device_create_file(&new_client->dev,
959 &dev_attr_fan2_div);
960 device_create_file(&new_client->dev,
961 &dev_attr_fan2_status);
962 }
963
964 if (FAN_CONFIG_CONTROL(data->fan_conf, 0))
965 device_create_file(&new_client->dev, &dev_attr_pwm1);
966 if (FAN_CONFIG_CONTROL(data->fan_conf, 1))
967 device_create_file(&new_client->dev, &dev_attr_pwm2);
968 }
969 if (data->fannr == 3) {
970 if (FAN_CONFIG_MONITOR(data->fan_conf, 2)) {
971 device_create_file(&new_client->dev,
972 &dev_attr_fan3_input);
973 device_create_file(&new_client->dev,
974 &dev_attr_fan3_min);
975 device_create_file(&new_client->dev,
976 &dev_attr_fan3_div);
977 device_create_file(&new_client->dev,
978 &dev_attr_fan3_status);
979 }
980
981 if (FAN_CONFIG_CONTROL(data->fan_conf, 2))
982 device_create_file(&new_client->dev, &dev_attr_pwm3);
983 }
984
985 return 0;
986
987 ERROR3:
988 i2c_detach_client(new_client);
989 ERROR2:
990 for (i = 0; i < 3; i++) {
991 if (data->address[i]) {
992 release_region(data->address[i], PC87360_EXTENT);
993 }
994 }
995 ERROR1:
996 kfree(data);
997 return err;
998 }
999
1000 static int pc87360_detach_client(struct i2c_client *client)
1001 {
1002 struct pc87360_data *data = i2c_get_clientdata(client);
1003 int i;
1004
1005 hwmon_device_unregister(data->class_dev);
1006
1007 if ((i = i2c_detach_client(client))) {
1008 dev_err(&client->dev, "Client deregistration failed, "
1009 "client not detached.\n");
1010 return i;
1011 }
1012
1013 for (i = 0; i < 3; i++) {
1014 if (data->address[i]) {
1015 release_region(data->address[i], PC87360_EXTENT);
1016 }
1017 }
1018 kfree(data);
1019
1020 return 0;
1021 }
1022
1023 /* ldi is the logical device index
1024 bank is for voltages and temperatures only */
1025 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1026 u8 reg)
1027 {
1028 int res;
1029
1030 down(&(data->lock));
1031 if (bank != NO_BANK)
1032 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1033 res = inb_p(data->address[ldi] + reg);
1034 up(&(data->lock));
1035
1036 return res;
1037 }
1038
1039 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1040 u8 reg, u8 value)
1041 {
1042 down(&(data->lock));
1043 if (bank != NO_BANK)
1044 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1045 outb_p(value, data->address[ldi] + reg);
1046 up(&(data->lock));
1047 }
1048
1049 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1050 {
1051 struct pc87360_data *data = i2c_get_clientdata(client);
1052 int i, nr;
1053 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1054 const u8 init_temp[3] = { 2, 2, 1 };
1055 u8 reg;
1056
1057 if (init >= 2 && data->innr) {
1058 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1059 PC87365_REG_IN_CONVRATE);
1060 dev_info(&client->dev, "VLM conversion set to "
1061 "1s period, 160us delay\n");
1062 pc87360_write_value(data, LD_IN, NO_BANK,
1063 PC87365_REG_IN_CONVRATE,
1064 (reg & 0xC0) | 0x11);
1065 }
1066
1067 nr = data->innr < 11 ? data->innr : 11;
1068 for (i=0; i<nr; i++) {
1069 if (init >= init_in[i]) {
1070 /* Forcibly enable voltage channel */
1071 reg = pc87360_read_value(data, LD_IN, i,
1072 PC87365_REG_IN_STATUS);
1073 if (!(reg & 0x01)) {
1074 dev_dbg(&client->dev, "Forcibly "
1075 "enabling in%d\n", i);
1076 pc87360_write_value(data, LD_IN, i,
1077 PC87365_REG_IN_STATUS,
1078 (reg & 0x68) | 0x87);
1079 }
1080 }
1081 }
1082
1083 /* We can't blindly trust the Super-I/O space configuration bit,
1084 most BIOS won't set it properly */
1085 for (i=11; i<data->innr; i++) {
1086 reg = pc87360_read_value(data, LD_IN, i,
1087 PC87365_REG_TEMP_STATUS);
1088 use_thermistors = use_thermistors || (reg & 0x01);
1089 }
1090
1091 i = use_thermistors ? 2 : 0;
1092 for (; i<data->tempnr; i++) {
1093 if (init >= init_temp[i]) {
1094 /* Forcibly enable temperature channel */
1095 reg = pc87360_read_value(data, LD_TEMP, i,
1096 PC87365_REG_TEMP_STATUS);
1097 if (!(reg & 0x01)) {
1098 dev_dbg(&client->dev, "Forcibly "
1099 "enabling temp%d\n", i+1);
1100 pc87360_write_value(data, LD_TEMP, i,
1101 PC87365_REG_TEMP_STATUS,
1102 0xCF);
1103 }
1104 }
1105 }
1106
1107 if (use_thermistors) {
1108 for (i=11; i<data->innr; i++) {
1109 if (init >= init_in[i]) {
1110 /* The pin may already be used by thermal
1111 diodes */
1112 reg = pc87360_read_value(data, LD_TEMP,
1113 (i-11)/2, PC87365_REG_TEMP_STATUS);
1114 if (reg & 0x01) {
1115 dev_dbg(&client->dev, "Skipping "
1116 "temp%d, pin already in use "
1117 "by temp%d\n", i-7, (i-11)/2);
1118 continue;
1119 }
1120
1121 /* Forcibly enable thermistor channel */
1122 reg = pc87360_read_value(data, LD_IN, i,
1123 PC87365_REG_IN_STATUS);
1124 if (!(reg & 0x01)) {
1125 dev_dbg(&client->dev, "Forcibly "
1126 "enabling temp%d\n", i-7);
1127 pc87360_write_value(data, LD_IN, i,
1128 PC87365_REG_TEMP_STATUS,
1129 (reg & 0x60) | 0x8F);
1130 }
1131 }
1132 }
1133 }
1134
1135 if (data->innr) {
1136 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1137 PC87365_REG_IN_CONFIG);
1138 if (reg & 0x01) {
1139 dev_dbg(&client->dev, "Forcibly "
1140 "enabling monitoring (VLM)\n");
1141 pc87360_write_value(data, LD_IN, NO_BANK,
1142 PC87365_REG_IN_CONFIG,
1143 reg & 0xFE);
1144 }
1145 }
1146
1147 if (data->tempnr) {
1148 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1149 PC87365_REG_TEMP_CONFIG);
1150 if (reg & 0x01) {
1151 dev_dbg(&client->dev, "Forcibly enabling "
1152 "monitoring (TMS)\n");
1153 pc87360_write_value(data, LD_TEMP, NO_BANK,
1154 PC87365_REG_TEMP_CONFIG,
1155 reg & 0xFE);
1156 }
1157
1158 if (init >= 2) {
1159 /* Chip config as documented by National Semi. */
1160 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1161 /* We voluntarily omit the bank here, in case the
1162 sequence itself matters. It shouldn't be a problem,
1163 since nobody else is supposed to access the
1164 device at that point. */
1165 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1166 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1167 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1168 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1169 }
1170 }
1171 }
1172
1173 static void pc87360_autodiv(struct i2c_client *client, int nr)
1174 {
1175 struct pc87360_data *data = i2c_get_clientdata(client);
1176 u8 old_min = data->fan_min[nr];
1177
1178 /* Increase clock divider if needed and possible */
1179 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1180 || (data->fan[nr] >= 224)) { /* next to overflow */
1181 if ((data->fan_status[nr] & 0x60) != 0x60) {
1182 data->fan_status[nr] += 0x20;
1183 data->fan_min[nr] >>= 1;
1184 data->fan[nr] >>= 1;
1185 dev_dbg(&client->dev, "Increasing "
1186 "clock divider to %d for fan %d\n",
1187 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1188 }
1189 } else {
1190 /* Decrease clock divider if possible */
1191 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1192 && data->fan[nr] < 85 /* bad accuracy */
1193 && (data->fan_status[nr] & 0x60) != 0x00) {
1194 data->fan_status[nr] -= 0x20;
1195 data->fan_min[nr] <<= 1;
1196 data->fan[nr] <<= 1;
1197 dev_dbg(&client->dev, "Decreasing "
1198 "clock divider to %d for fan %d\n",
1199 FAN_DIV_FROM_REG(data->fan_status[nr]),
1200 nr+1);
1201 }
1202 }
1203
1204 /* Write new fan min if it changed */
1205 if (old_min != data->fan_min[nr]) {
1206 pc87360_write_value(data, LD_FAN, NO_BANK,
1207 PC87360_REG_FAN_MIN(nr),
1208 data->fan_min[nr]);
1209 }
1210 }
1211
1212 static struct pc87360_data *pc87360_update_device(struct device *dev)
1213 {
1214 struct i2c_client *client = to_i2c_client(dev);
1215 struct pc87360_data *data = i2c_get_clientdata(client);
1216 u8 i;
1217
1218 down(&data->update_lock);
1219
1220 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1221 dev_dbg(&client->dev, "Data update\n");
1222
1223 /* Fans */
1224 for (i = 0; i < data->fannr; i++) {
1225 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1226 data->fan_status[i] =
1227 pc87360_read_value(data, LD_FAN,
1228 NO_BANK, PC87360_REG_FAN_STATUS(i));
1229 data->fan[i] = pc87360_read_value(data, LD_FAN,
1230 NO_BANK, PC87360_REG_FAN(i));
1231 data->fan_min[i] = pc87360_read_value(data,
1232 LD_FAN, NO_BANK,
1233 PC87360_REG_FAN_MIN(i));
1234 /* Change clock divider if needed */
1235 pc87360_autodiv(client, i);
1236 /* Clear bits and write new divider */
1237 pc87360_write_value(data, LD_FAN, NO_BANK,
1238 PC87360_REG_FAN_STATUS(i),
1239 data->fan_status[i]);
1240 }
1241 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1242 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1243 NO_BANK, PC87360_REG_PWM(i));
1244 }
1245
1246 /* Voltages */
1247 for (i = 0; i < data->innr; i++) {
1248 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1249 PC87365_REG_IN_STATUS);
1250 /* Clear bits */
1251 pc87360_write_value(data, LD_IN, i,
1252 PC87365_REG_IN_STATUS,
1253 data->in_status[i]);
1254 if ((data->in_status[i] & 0x81) == 0x81) {
1255 data->in[i] = pc87360_read_value(data, LD_IN,
1256 i, PC87365_REG_IN);
1257 }
1258 if (data->in_status[i] & 0x01) {
1259 data->in_min[i] = pc87360_read_value(data,
1260 LD_IN, i,
1261 PC87365_REG_IN_MIN);
1262 data->in_max[i] = pc87360_read_value(data,
1263 LD_IN, i,
1264 PC87365_REG_IN_MAX);
1265 if (i >= 11)
1266 data->in_crit[i-11] =
1267 pc87360_read_value(data, LD_IN,
1268 i, PC87365_REG_TEMP_CRIT);
1269 }
1270 }
1271 if (data->innr) {
1272 data->in_alarms = pc87360_read_value(data, LD_IN,
1273 NO_BANK, PC87365_REG_IN_ALARMS1)
1274 | ((pc87360_read_value(data, LD_IN,
1275 NO_BANK, PC87365_REG_IN_ALARMS2)
1276 & 0x07) << 8);
1277 data->vid = (data->vid_conf & 0xE0) ?
1278 pc87360_read_value(data, LD_IN,
1279 NO_BANK, PC87365_REG_VID) : 0x1F;
1280 }
1281
1282 /* Temperatures */
1283 for (i = 0; i < data->tempnr; i++) {
1284 data->temp_status[i] = pc87360_read_value(data,
1285 LD_TEMP, i,
1286 PC87365_REG_TEMP_STATUS);
1287 /* Clear bits */
1288 pc87360_write_value(data, LD_TEMP, i,
1289 PC87365_REG_TEMP_STATUS,
1290 data->temp_status[i]);
1291 if ((data->temp_status[i] & 0x81) == 0x81) {
1292 data->temp[i] = pc87360_read_value(data,
1293 LD_TEMP, i,
1294 PC87365_REG_TEMP);
1295 }
1296 if (data->temp_status[i] & 0x01) {
1297 data->temp_min[i] = pc87360_read_value(data,
1298 LD_TEMP, i,
1299 PC87365_REG_TEMP_MIN);
1300 data->temp_max[i] = pc87360_read_value(data,
1301 LD_TEMP, i,
1302 PC87365_REG_TEMP_MAX);
1303 data->temp_crit[i] = pc87360_read_value(data,
1304 LD_TEMP, i,
1305 PC87365_REG_TEMP_CRIT);
1306 }
1307 }
1308 if (data->tempnr) {
1309 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1310 NO_BANK, PC87365_REG_TEMP_ALARMS)
1311 & 0x3F;
1312 }
1313
1314 data->last_updated = jiffies;
1315 data->valid = 1;
1316 }
1317
1318 up(&data->update_lock);
1319
1320 return data;
1321 }
1322
1323 static int __init pc87360_init(void)
1324 {
1325 int i;
1326
1327 if (pc87360_find(0x2e, &devid, extra_isa)
1328 && pc87360_find(0x4e, &devid, extra_isa)) {
1329 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1330 "module not inserted.\n");
1331 return -ENODEV;
1332 }
1333
1334 /* Arbitrarily pick one of the addresses */
1335 for (i = 0; i < 3; i++) {
1336 if (extra_isa[i] != 0x0000) {
1337 normal_isa[0] = extra_isa[i];
1338 break;
1339 }
1340 }
1341
1342 if (normal_isa[0] == 0x0000) {
1343 printk(KERN_WARNING "pc87360: No active logical device, "
1344 "module not inserted.\n");
1345 return -ENODEV;
1346 }
1347
1348 return i2c_isa_add_driver(&pc87360_driver);
1349 }
1350
1351 static void __exit pc87360_exit(void)
1352 {
1353 i2c_isa_del_driver(&pc87360_driver);
1354 }
1355
1356
1357 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1358 MODULE_DESCRIPTION("PC8736x hardware monitor");
1359 MODULE_LICENSE("GPL");
1360
1361 module_init(pc87360_init);
1362 module_exit(pc87360_exit);
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