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Linux v2.6.18-rc5
[pohmelfs.git] / drivers / hwmon / pc87360.c
blobae05e483a77877673ea47825960d955e4c2162c7
1 /*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Supports the following chips:
24 *
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
31 *
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
34 */
35
36 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/slab.h>
39 #include <linux/jiffies.h>
40 #include <linux/i2c.h>
41 #include <linux/i2c-isa.h>
42 #include <linux/hwmon.h>
43 #include <linux/hwmon-sysfs.h>
44 #include <linux/hwmon-vid.h>
45 #include <linux/err.h>
46 #include <linux/mutex.h>
47 #include <asm/io.h>
48
49 static u8 devid;
50 static unsigned short address;
51 static unsigned short extra_isa[3];
52 static u8 confreg[4];
53
54 enum chips { any_chip, pc87360, pc87363, pc87364, pc87365, pc87366 };
55
56 static int init = 1;
57 module_param(init, int, 0);
58 MODULE_PARM_DESC(init,
59 "Chip initialization level:\n"
60 " 0: None\n"
61 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
62 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
63 " 3: Forcibly enable all voltage and temperature channels, including in9");
64
65 /*
66 * Super-I/O registers and operations
67 */
68
69 #define DEV 0x07 /* Register: Logical device select */
70 #define DEVID 0x20 /* Register: Device ID */
71 #define ACT 0x30 /* Register: Device activation */
72 #define BASE 0x60 /* Register: Base address */
73
74 #define FSCM 0x09 /* Logical device: fans */
75 #define VLM 0x0d /* Logical device: voltages */
76 #define TMS 0x0e /* Logical device: temperatures */
77 static const u8 logdev[3] = { FSCM, VLM, TMS };
78
79 #define LD_FAN 0
80 #define LD_IN 1
81 #define LD_TEMP 2
82
83 static inline void superio_outb(int sioaddr, int reg, int val)
84 {
85 outb(reg, sioaddr);
86 outb(val, sioaddr+1);
87 }
88
89 static inline int superio_inb(int sioaddr, int reg)
90 {
91 outb(reg, sioaddr);
92 return inb(sioaddr+1);
93 }
94
95 static inline void superio_exit(int sioaddr)
96 {
97 outb(0x02, sioaddr);
98 outb(0x02, sioaddr+1);
99 }
100
101 /*
102 * Logical devices
103 */
104
105 #define PC87360_EXTENT 0x10
106 #define PC87365_REG_BANK 0x09
107 #define NO_BANK 0xff
108
109 /*
110 * Fan registers and conversions
111 */
112
113 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
114 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
115 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
116 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
117 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
118 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
119
120 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
121 480000 / ((val)*(div)))
122 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
123 480000 / ((val)*(div)))
124 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
125 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
126
127 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
128 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
129 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
130
131 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
132 static inline u8 PWM_TO_REG(int val, int inv)
133 {
134 if (inv)
135 val = 255 - val;
136 if (val < 0)
137 return 0;
138 if (val > 255)
139 return 255;
140 return val;
141 }
142
143 /*
144 * Voltage registers and conversions
145 */
146
147 #define PC87365_REG_IN_CONVRATE 0x07
148 #define PC87365_REG_IN_CONFIG 0x08
149 #define PC87365_REG_IN 0x0B
150 #define PC87365_REG_IN_MIN 0x0D
151 #define PC87365_REG_IN_MAX 0x0C
152 #define PC87365_REG_IN_STATUS 0x0A
153 #define PC87365_REG_IN_ALARMS1 0x00
154 #define PC87365_REG_IN_ALARMS2 0x01
155 #define PC87365_REG_VID 0x06
156
157 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
158 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
159 (val)*256 >= (ref)*255 ? 255: \
160 ((val) * 256 + (ref)/2) / (ref))
161
162 /*
163 * Temperature registers and conversions
164 */
165
166 #define PC87365_REG_TEMP_CONFIG 0x08
167 #define PC87365_REG_TEMP 0x0B
168 #define PC87365_REG_TEMP_MIN 0x0D
169 #define PC87365_REG_TEMP_MAX 0x0C
170 #define PC87365_REG_TEMP_CRIT 0x0E
171 #define PC87365_REG_TEMP_STATUS 0x0A
172 #define PC87365_REG_TEMP_ALARMS 0x00
173
174 #define TEMP_FROM_REG(val) ((val) * 1000)
175 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
176 (val) > 127000 ? 127 : \
177 (val) < 0 ? ((val) - 500) / 1000 : \
178 ((val) + 500) / 1000)
179
180 /*
181 * Client data (each client gets its own)
182 */
183
184 struct pc87360_data {
185 struct i2c_client client;
186 struct class_device *class_dev;
187 struct mutex lock;
188 struct mutex update_lock;
189 char valid; /* !=0 if following fields are valid */
190 unsigned long last_updated; /* In jiffies */
191
192 int address[3];
193
194 u8 fannr, innr, tempnr;
195
196 u8 fan[3]; /* Register value */
197 u8 fan_min[3]; /* Register value */
198 u8 fan_status[3]; /* Register value */
199 u8 pwm[3]; /* Register value */
200 u16 fan_conf; /* Configuration register values, combined */
201
202 u16 in_vref; /* 1 mV/bit */
203 u8 in[14]; /* Register value */
204 u8 in_min[14]; /* Register value */
205 u8 in_max[14]; /* Register value */
206 u8 in_crit[3]; /* Register value */
207 u8 in_status[14]; /* Register value */
208 u16 in_alarms; /* Register values, combined, masked */
209 u8 vid_conf; /* Configuration register value */
210 u8 vrm;
211 u8 vid; /* Register value */
212
213 s8 temp[3]; /* Register value */
214 s8 temp_min[3]; /* Register value */
215 s8 temp_max[3]; /* Register value */
216 s8 temp_crit[3]; /* Register value */
217 u8 temp_status[3]; /* Register value */
218 u8 temp_alarms; /* Register value, masked */
219 };
220
221 /*
222 * Functions declaration
223 */
224
225 static int pc87360_detect(struct i2c_adapter *adapter);
226 static int pc87360_detach_client(struct i2c_client *client);
227
228 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
229 u8 reg);
230 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
231 u8 reg, u8 value);
232 static void pc87360_init_client(struct i2c_client *client, int use_thermistors);
233 static struct pc87360_data *pc87360_update_device(struct device *dev);
234
235 /*
236 * Driver data (common to all clients)
237 */
238
239 static struct i2c_driver pc87360_driver = {
240 .driver = {
241 .name = "pc87360",
242 },
243 .attach_adapter = pc87360_detect,
244 .detach_client = pc87360_detach_client,
245 };
246
247 /*
248 * Sysfs stuff
249 */
250
251 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
252 {
253 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
254 struct pc87360_data *data = pc87360_update_device(dev);
255 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
256 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
257 }
258 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
259 {
260 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
261 struct pc87360_data *data = pc87360_update_device(dev);
262 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
263 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
264 }
265 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
266 {
267 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
268 struct pc87360_data *data = pc87360_update_device(dev);
269 return sprintf(buf, "%u\n",
270 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
271 }
272 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
273 {
274 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
275 struct pc87360_data *data = pc87360_update_device(dev);
276 return sprintf(buf, "%u\n",
277 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
278 }
279 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
280 size_t count)
281 {
282 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
283 struct i2c_client *client = to_i2c_client(dev);
284 struct pc87360_data *data = i2c_get_clientdata(client);
285 long fan_min = simple_strtol(buf, NULL, 10);
286
287 mutex_lock(&data->update_lock);
288 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
289
290 /* If it wouldn't fit, change clock divisor */
291 while (fan_min > 255
292 && (data->fan_status[attr->index] & 0x60) != 0x60) {
293 fan_min >>= 1;
294 data->fan[attr->index] >>= 1;
295 data->fan_status[attr->index] += 0x20;
296 }
297 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
298 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
299 data->fan_min[attr->index]);
300
301 /* Write new divider, preserve alarm bits */
302 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
303 data->fan_status[attr->index] & 0xF9);
304 mutex_unlock(&data->update_lock);
305
306 return count;
307 }
308
309 static struct sensor_device_attribute fan_input[] = {
310 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
311 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
312 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
313 };
314 static struct sensor_device_attribute fan_status[] = {
315 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
316 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
317 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
318 };
319 static struct sensor_device_attribute fan_div[] = {
320 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
321 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
322 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
323 };
324 static struct sensor_device_attribute fan_min[] = {
325 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
326 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
327 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
328 };
329
330 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
331 {
332 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
333 struct pc87360_data *data = pc87360_update_device(dev);
334 return sprintf(buf, "%u\n",
335 PWM_FROM_REG(data->pwm[attr->index],
336 FAN_CONFIG_INVERT(data->fan_conf,
337 attr->index)));
338 }
339 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
340 size_t count)
341 {
342 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
343 struct i2c_client *client = to_i2c_client(dev);
344 struct pc87360_data *data = i2c_get_clientdata(client);
345 long val = simple_strtol(buf, NULL, 10);
346
347 mutex_lock(&data->update_lock);
348 data->pwm[attr->index] = PWM_TO_REG(val,
349 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
350 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
351 data->pwm[attr->index]);
352 mutex_unlock(&data->update_lock);
353 return count;
354 }
355
356 static struct sensor_device_attribute pwm[] = {
357 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
358 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
359 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
360 };
361
362 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
363 {
364 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
365 struct pc87360_data *data = pc87360_update_device(dev);
366 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
367 data->in_vref));
368 }
369 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
370 {
371 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
372 struct pc87360_data *data = pc87360_update_device(dev);
373 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
374 data->in_vref));
375 }
376 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
377 {
378 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
379 struct pc87360_data *data = pc87360_update_device(dev);
380 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
381 data->in_vref));
382 }
383 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
384 {
385 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
386 struct pc87360_data *data = pc87360_update_device(dev);
387 return sprintf(buf, "%u\n", data->in_status[attr->index]);
388 }
389 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
390 size_t count)
391 {
392 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
393 struct i2c_client *client = to_i2c_client(dev);
394 struct pc87360_data *data = i2c_get_clientdata(client);
395 long val = simple_strtol(buf, NULL, 10);
396
397 mutex_lock(&data->update_lock);
398 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
399 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
400 data->in_min[attr->index]);
401 mutex_unlock(&data->update_lock);
402 return count;
403 }
404 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
405 size_t count)
406 {
407 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
408 struct i2c_client *client = to_i2c_client(dev);
409 struct pc87360_data *data = i2c_get_clientdata(client);
410 long val = simple_strtol(buf, NULL, 10);
411
412 mutex_lock(&data->update_lock);
413 data->in_max[attr->index] = IN_TO_REG(val,
414 data->in_vref);
415 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
416 data->in_max[attr->index]);
417 mutex_unlock(&data->update_lock);
418 return count;
419 }
420
421 static struct sensor_device_attribute in_input[] = {
422 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
423 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
424 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
425 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
426 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
427 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
428 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
429 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
430 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
431 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
432 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
433 };
434 static struct sensor_device_attribute in_status[] = {
435 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
436 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
437 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
438 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
439 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
440 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
441 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
442 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
443 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
444 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
445 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
446 };
447 static struct sensor_device_attribute in_min[] = {
448 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
449 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
450 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
451 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
452 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
453 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
454 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
455 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
456 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
457 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
458 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
459 };
460 static struct sensor_device_attribute in_max[] = {
461 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
462 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
463 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
464 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
465 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
466 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
467 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
468 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
469 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
470 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
471 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
472 };
473
474 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
475 {
476 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
477 struct pc87360_data *data = pc87360_update_device(dev);
478 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
479 data->in_vref));
480 }
481 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
482 {
483 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
484 struct pc87360_data *data = pc87360_update_device(dev);
485 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
486 data->in_vref));
487 }
488 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
489 {
490 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
491 struct pc87360_data *data = pc87360_update_device(dev);
492 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
493 data->in_vref));
494 }
495 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
496 {
497 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
498 struct pc87360_data *data = pc87360_update_device(dev);
499 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
500 data->in_vref));
501 }
502 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
503 {
504 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
505 struct pc87360_data *data = pc87360_update_device(dev);
506 return sprintf(buf, "%u\n", data->in_status[attr->index]);
507 }
508 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
509 size_t count)
510 {
511 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
512 struct i2c_client *client = to_i2c_client(dev);
513 struct pc87360_data *data = i2c_get_clientdata(client);
514 long val = simple_strtol(buf, NULL, 10);
515
516 mutex_lock(&data->update_lock);
517 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
518 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
519 data->in_min[attr->index]);
520 mutex_unlock(&data->update_lock);
521 return count;
522 }
523 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
524 size_t count)
525 {
526 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
527 struct i2c_client *client = to_i2c_client(dev);
528 struct pc87360_data *data = i2c_get_clientdata(client);
529 long val = simple_strtol(buf, NULL, 10);
530
531 mutex_lock(&data->update_lock);
532 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
533 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
534 data->in_max[attr->index]);
535 mutex_unlock(&data->update_lock);
536 return count;
537 }
538 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
539 size_t count)
540 {
541 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
542 struct i2c_client *client = to_i2c_client(dev);
543 struct pc87360_data *data = i2c_get_clientdata(client);
544 long val = simple_strtol(buf, NULL, 10);
545
546 mutex_lock(&data->update_lock);
547 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
548 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
549 data->in_crit[attr->index-11]);
550 mutex_unlock(&data->update_lock);
551 return count;
552 }
553
554 /* the +11 term below reflects the fact that VLM units 11,12,13 are
555 used in the chip to measure voltage across the thermistors
556 */
557 static struct sensor_device_attribute therm_input[] = {
558 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
559 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
560 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
561 };
562 static struct sensor_device_attribute therm_status[] = {
563 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
564 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
565 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
566 };
567 static struct sensor_device_attribute therm_min[] = {
568 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
569 show_therm_min, set_therm_min, 0+11),
570 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
571 show_therm_min, set_therm_min, 1+11),
572 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
573 show_therm_min, set_therm_min, 2+11),
574 };
575 static struct sensor_device_attribute therm_max[] = {
576 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
577 show_therm_max, set_therm_max, 0+11),
578 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
579 show_therm_max, set_therm_max, 1+11),
580 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
581 show_therm_max, set_therm_max, 2+11),
582 };
583 static struct sensor_device_attribute therm_crit[] = {
584 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
585 show_therm_crit, set_therm_crit, 0+11),
586 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
587 show_therm_crit, set_therm_crit, 1+11),
588 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
589 show_therm_crit, set_therm_crit, 2+11),
590 };
591
592 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
593 {
594 struct pc87360_data *data = pc87360_update_device(dev);
595 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
596 }
597 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
598
599 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
600 {
601 struct pc87360_data *data = pc87360_update_device(dev);
602 return sprintf(buf, "%u\n", data->vrm);
603 }
604 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
605 {
606 struct i2c_client *client = to_i2c_client(dev);
607 struct pc87360_data *data = i2c_get_clientdata(client);
608 data->vrm = simple_strtoul(buf, NULL, 10);
609 return count;
610 }
611 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
612
613 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
614 {
615 struct pc87360_data *data = pc87360_update_device(dev);
616 return sprintf(buf, "%u\n", data->in_alarms);
617 }
618 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
619
620 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
621 {
622 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
623 struct pc87360_data *data = pc87360_update_device(dev);
624 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
625 }
626 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
627 {
628 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
629 struct pc87360_data *data = pc87360_update_device(dev);
630 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
631 }
632 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
633 {
634 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
635 struct pc87360_data *data = pc87360_update_device(dev);
636 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
637 }
638 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
639 {
640 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
641 struct pc87360_data *data = pc87360_update_device(dev);
642 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
643 }
644 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
645 {
646 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
647 struct pc87360_data *data = pc87360_update_device(dev);
648 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
649 }
650 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
651 size_t count)
652 {
653 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
654 struct i2c_client *client = to_i2c_client(dev);
655 struct pc87360_data *data = i2c_get_clientdata(client);
656 long val = simple_strtol(buf, NULL, 10);
657
658 mutex_lock(&data->update_lock);
659 data->temp_min[attr->index] = TEMP_TO_REG(val);
660 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
661 data->temp_min[attr->index]);
662 mutex_unlock(&data->update_lock);
663 return count;
664 }
665 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
666 size_t count)
667 {
668 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
669 struct i2c_client *client = to_i2c_client(dev);
670 struct pc87360_data *data = i2c_get_clientdata(client);
671 long val = simple_strtol(buf, NULL, 10);
672
673 mutex_lock(&data->update_lock);
674 data->temp_max[attr->index] = TEMP_TO_REG(val);
675 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
676 data->temp_max[attr->index]);
677 mutex_unlock(&data->update_lock);
678 return count;
679 }
680 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
681 size_t count)
682 {
683 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
684 struct i2c_client *client = to_i2c_client(dev);
685 struct pc87360_data *data = i2c_get_clientdata(client);
686 long val = simple_strtol(buf, NULL, 10);
687
688 mutex_lock(&data->update_lock);
689 data->temp_crit[attr->index] = TEMP_TO_REG(val);
690 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
691 data->temp_crit[attr->index]);
692 mutex_unlock(&data->update_lock);
693 return count;
694 }
695
696 static struct sensor_device_attribute temp_input[] = {
697 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
698 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
699 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
700 };
701 static struct sensor_device_attribute temp_status[] = {
702 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
703 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
704 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
705 };
706 static struct sensor_device_attribute temp_min[] = {
707 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
708 show_temp_min, set_temp_min, 0),
709 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
710 show_temp_min, set_temp_min, 1),
711 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
712 show_temp_min, set_temp_min, 2),
713 };
714 static struct sensor_device_attribute temp_max[] = {
715 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
716 show_temp_max, set_temp_max, 0),
717 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
718 show_temp_max, set_temp_max, 1),
719 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
720 show_temp_max, set_temp_max, 2),
721 };
722 static struct sensor_device_attribute temp_crit[] = {
723 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
724 show_temp_crit, set_temp_crit, 0),
725 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
726 show_temp_crit, set_temp_crit, 1),
727 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
728 show_temp_crit, set_temp_crit, 2),
729 };
730
731 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
732 {
733 struct pc87360_data *data = pc87360_update_device(dev);
734 return sprintf(buf, "%u\n", data->temp_alarms);
735 }
736 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
737
738 /*
739 * Device detection, registration and update
740 */
741
742 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
743 {
744 u16 val;
745 int i;
746 int nrdev; /* logical device count */
747
748 /* No superio_enter */
749
750 /* Identify device */
751 val = superio_inb(sioaddr, DEVID);
752 switch (val) {
753 case 0xE1: /* PC87360 */
754 case 0xE8: /* PC87363 */
755 case 0xE4: /* PC87364 */
756 nrdev = 1;
757 break;
758 case 0xE5: /* PC87365 */
759 case 0xE9: /* PC87366 */
760 nrdev = 3;
761 break;
762 default:
763 superio_exit(sioaddr);
764 return -ENODEV;
765 }
766 /* Remember the device id */
767 *devid = val;
768
769 for (i = 0; i < nrdev; i++) {
770 /* select logical device */
771 superio_outb(sioaddr, DEV, logdev[i]);
772
773 val = superio_inb(sioaddr, ACT);
774 if (!(val & 0x01)) {
775 printk(KERN_INFO "pc87360: Device 0x%02x not "
776 "activated\n", logdev[i]);
777 continue;
778 }
779
780 val = (superio_inb(sioaddr, BASE) << 8)
781 | superio_inb(sioaddr, BASE + 1);
782 if (!val) {
783 printk(KERN_INFO "pc87360: Base address not set for "
784 "device 0x%02x\n", logdev[i]);
785 continue;
786 }
787
788 addresses[i] = val;
789
790 if (i==0) { /* Fans */
791 confreg[0] = superio_inb(sioaddr, 0xF0);
792 confreg[1] = superio_inb(sioaddr, 0xF1);
793
794 #ifdef DEBUG
795 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
796 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
797 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
798 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
799 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
800 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
801 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
802 "ctrl=%d inv=%d\n", confreg[1]&1,
803 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
804 #endif
805 } else if (i==1) { /* Voltages */
806 /* Are we using thermistors? */
807 if (*devid == 0xE9) { /* PC87366 */
808 /* These registers are not logical-device
809 specific, just that we won't need them if
810 we don't use the VLM device */
811 confreg[2] = superio_inb(sioaddr, 0x2B);
812 confreg[3] = superio_inb(sioaddr, 0x25);
813
814 if (confreg[2] & 0x40) {
815 printk(KERN_INFO "pc87360: Using "
816 "thermistors for temperature "
817 "monitoring\n");
818 }
819 if (confreg[3] & 0xE0) {
820 printk(KERN_INFO "pc87360: VID "
821 "inputs routed (mode %u)\n",
822 confreg[3] >> 5);
823 }
824 }
825 }
826 }
827
828 superio_exit(sioaddr);
829 return 0;
830 }
831
832 static int pc87360_detect(struct i2c_adapter *adapter)
833 {
834 int i;
835 struct i2c_client *client;
836 struct pc87360_data *data;
837 int err = 0;
838 const char *name = "pc87360";
839 int use_thermistors = 0;
840 struct device *dev;
841
842 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
843 return -ENOMEM;
844
845 client = &data->client;
846 dev = &client->dev;
847 i2c_set_clientdata(client, data);
848 client->addr = address;
849 mutex_init(&data->lock);
850 client->adapter = adapter;
851 client->driver = &pc87360_driver;
852 client->flags = 0;
853
854 data->fannr = 2;
855 data->innr = 0;
856 data->tempnr = 0;
857
858 switch (devid) {
859 case 0xe8:
860 name = "pc87363";
861 break;
862 case 0xe4:
863 name = "pc87364";
864 data->fannr = 3;
865 break;
866 case 0xe5:
867 name = "pc87365";
868 data->fannr = extra_isa[0] ? 3 : 0;
869 data->innr = extra_isa[1] ? 11 : 0;
870 data->tempnr = extra_isa[2] ? 2 : 0;
871 break;
872 case 0xe9:
873 name = "pc87366";
874 data->fannr = extra_isa[0] ? 3 : 0;
875 data->innr = extra_isa[1] ? 14 : 0;
876 data->tempnr = extra_isa[2] ? 3 : 0;
877 break;
878 }
879
880 strlcpy(client->name, name, sizeof(client->name));
881 data->valid = 0;
882 mutex_init(&data->update_lock);
883
884 for (i = 0; i < 3; i++) {
885 if (((data->address[i] = extra_isa[i]))
886 && !request_region(extra_isa[i], PC87360_EXTENT,
887 pc87360_driver.driver.name)) {
888 dev_err(&client->dev, "Region 0x%x-0x%x already "
889 "in use!\n", extra_isa[i],
890 extra_isa[i]+PC87360_EXTENT-1);
891 for (i--; i >= 0; i--)
892 release_region(extra_isa[i], PC87360_EXTENT);
893 err = -EBUSY;
894 goto ERROR1;
895 }
896 }
897
898 /* Retrieve the fans configuration from Super-I/O space */
899 if (data->fannr)
900 data->fan_conf = confreg[0] | (confreg[1] << 8);
901
902 if ((err = i2c_attach_client(client)))
903 goto ERROR2;
904
905 /* Use the correct reference voltage
906 Unless both the VLM and the TMS logical devices agree to
907 use an external Vref, the internal one is used. */
908 if (data->innr) {
909 i = pc87360_read_value(data, LD_IN, NO_BANK,
910 PC87365_REG_IN_CONFIG);
911 if (data->tempnr) {
912 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
913 PC87365_REG_TEMP_CONFIG);
914 }
915 data->in_vref = (i&0x02) ? 3025 : 2966;
916 dev_dbg(&client->dev, "Using %s reference voltage\n",
917 (i&0x02) ? "external" : "internal");
918
919 data->vid_conf = confreg[3];
920 data->vrm = 90;
921 }
922
923 /* Fan clock dividers may be needed before any data is read */
924 for (i = 0; i < data->fannr; i++) {
925 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
926 data->fan_status[i] = pc87360_read_value(data,
927 LD_FAN, NO_BANK,
928 PC87360_REG_FAN_STATUS(i));
929 }
930
931 if (init > 0) {
932 if (devid == 0xe9 && data->address[1]) /* PC87366 */
933 use_thermistors = confreg[2] & 0x40;
934
935 pc87360_init_client(client, use_thermistors);
936 }
937
938 /* Register sysfs hooks */
939 data->class_dev = hwmon_device_register(&client->dev);
940 if (IS_ERR(data->class_dev)) {
941 err = PTR_ERR(data->class_dev);
942 goto ERROR3;
943 }
944
945 if (data->innr) {
946 for (i = 0; i < 11; i++) {
947 device_create_file(dev, &in_input[i].dev_attr);
948 device_create_file(dev, &in_min[i].dev_attr);
949 device_create_file(dev, &in_max[i].dev_attr);
950 device_create_file(dev, &in_status[i].dev_attr);
951 }
952 device_create_file(dev, &dev_attr_cpu0_vid);
953 device_create_file(dev, &dev_attr_vrm);
954 device_create_file(dev, &dev_attr_alarms_in);
955 }
956
957 if (data->tempnr) {
958 for (i = 0; i < data->tempnr; i++) {
959 device_create_file(dev, &temp_input[i].dev_attr);
960 device_create_file(dev, &temp_min[i].dev_attr);
961 device_create_file(dev, &temp_max[i].dev_attr);
962 device_create_file(dev, &temp_crit[i].dev_attr);
963 device_create_file(dev, &temp_status[i].dev_attr);
964 }
965 device_create_file(dev, &dev_attr_alarms_temp);
966 }
967
968 if (data->innr == 14) {
969 for (i = 0; i < 3; i++) {
970 device_create_file(dev, &therm_input[i].dev_attr);
971 device_create_file(dev, &therm_min[i].dev_attr);
972 device_create_file(dev, &therm_max[i].dev_attr);
973 device_create_file(dev, &therm_crit[i].dev_attr);
974 device_create_file(dev, &therm_status[i].dev_attr);
975 }
976 }
977
978 for (i = 0; i < data->fannr; i++) {
979 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
980 device_create_file(dev, &fan_input[i].dev_attr);
981 device_create_file(dev, &fan_min[i].dev_attr);
982 device_create_file(dev, &fan_div[i].dev_attr);
983 device_create_file(dev, &fan_status[i].dev_attr);
984 }
985 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
986 device_create_file(dev, &pwm[i].dev_attr);
987 }
988
989 return 0;
990
991 ERROR3:
992 i2c_detach_client(client);
993 ERROR2:
994 for (i = 0; i < 3; i++) {
995 if (data->address[i]) {
996 release_region(data->address[i], PC87360_EXTENT);
997 }
998 }
999 ERROR1:
1000 kfree(data);
1001 return err;
1002 }
1003
1004 static int pc87360_detach_client(struct i2c_client *client)
1005 {
1006 struct pc87360_data *data = i2c_get_clientdata(client);
1007 int i;
1008
1009 hwmon_device_unregister(data->class_dev);
1010
1011 if ((i = i2c_detach_client(client)))
1012 return i;
1013
1014 for (i = 0; i < 3; i++) {
1015 if (data->address[i]) {
1016 release_region(data->address[i], PC87360_EXTENT);
1017 }
1018 }
1019 kfree(data);
1020
1021 return 0;
1022 }
1023
1024 /* ldi is the logical device index
1025 bank is for voltages and temperatures only */
1026 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1027 u8 reg)
1028 {
1029 int res;
1030
1031 mutex_lock(&(data->lock));
1032 if (bank != NO_BANK)
1033 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1034 res = inb_p(data->address[ldi] + reg);
1035 mutex_unlock(&(data->lock));
1036
1037 return res;
1038 }
1039
1040 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1041 u8 reg, u8 value)
1042 {
1043 mutex_lock(&(data->lock));
1044 if (bank != NO_BANK)
1045 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1046 outb_p(value, data->address[ldi] + reg);
1047 mutex_unlock(&(data->lock));
1048 }
1049
1050 static void pc87360_init_client(struct i2c_client *client, int use_thermistors)
1051 {
1052 struct pc87360_data *data = i2c_get_clientdata(client);
1053 int i, nr;
1054 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1055 const u8 init_temp[3] = { 2, 2, 1 };
1056 u8 reg;
1057
1058 if (init >= 2 && data->innr) {
1059 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1060 PC87365_REG_IN_CONVRATE);
1061 dev_info(&client->dev, "VLM conversion set to "
1062 "1s period, 160us delay\n");
1063 pc87360_write_value(data, LD_IN, NO_BANK,
1064 PC87365_REG_IN_CONVRATE,
1065 (reg & 0xC0) | 0x11);
1066 }
1067
1068 nr = data->innr < 11 ? data->innr : 11;
1069 for (i = 0; i < nr; i++) {
1070 if (init >= init_in[i]) {
1071 /* Forcibly enable voltage channel */
1072 reg = pc87360_read_value(data, LD_IN, i,
1073 PC87365_REG_IN_STATUS);
1074 if (!(reg & 0x01)) {
1075 dev_dbg(&client->dev, "Forcibly "
1076 "enabling in%d\n", i);
1077 pc87360_write_value(data, LD_IN, i,
1078 PC87365_REG_IN_STATUS,
1079 (reg & 0x68) | 0x87);
1080 }
1081 }
1082 }
1083
1084 /* We can't blindly trust the Super-I/O space configuration bit,
1085 most BIOS won't set it properly */
1086 for (i = 11; i < data->innr; i++) {
1087 reg = pc87360_read_value(data, LD_IN, i,
1088 PC87365_REG_TEMP_STATUS);
1089 use_thermistors = use_thermistors || (reg & 0x01);
1090 }
1091
1092 i = use_thermistors ? 2 : 0;
1093 for (; i < data->tempnr; i++) {
1094 if (init >= init_temp[i]) {
1095 /* Forcibly enable temperature channel */
1096 reg = pc87360_read_value(data, LD_TEMP, i,
1097 PC87365_REG_TEMP_STATUS);
1098 if (!(reg & 0x01)) {
1099 dev_dbg(&client->dev, "Forcibly "
1100 "enabling temp%d\n", i+1);
1101 pc87360_write_value(data, LD_TEMP, i,
1102 PC87365_REG_TEMP_STATUS,
1103 0xCF);
1104 }
1105 }
1106 }
1107
1108 if (use_thermistors) {
1109 for (i = 11; i < data->innr; i++) {
1110 if (init >= init_in[i]) {
1111 /* The pin may already be used by thermal
1112 diodes */
1113 reg = pc87360_read_value(data, LD_TEMP,
1114 (i-11)/2, PC87365_REG_TEMP_STATUS);
1115 if (reg & 0x01) {
1116 dev_dbg(&client->dev, "Skipping "
1117 "temp%d, pin already in use "
1118 "by temp%d\n", i-7, (i-11)/2);
1119 continue;
1120 }
1121
1122 /* Forcibly enable thermistor channel */
1123 reg = pc87360_read_value(data, LD_IN, i,
1124 PC87365_REG_IN_STATUS);
1125 if (!(reg & 0x01)) {
1126 dev_dbg(&client->dev, "Forcibly "
1127 "enabling temp%d\n", i-7);
1128 pc87360_write_value(data, LD_IN, i,
1129 PC87365_REG_TEMP_STATUS,
1130 (reg & 0x60) | 0x8F);
1131 }
1132 }
1133 }
1134 }
1135
1136 if (data->innr) {
1137 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1138 PC87365_REG_IN_CONFIG);
1139 if (reg & 0x01) {
1140 dev_dbg(&client->dev, "Forcibly "
1141 "enabling monitoring (VLM)\n");
1142 pc87360_write_value(data, LD_IN, NO_BANK,
1143 PC87365_REG_IN_CONFIG,
1144 reg & 0xFE);
1145 }
1146 }
1147
1148 if (data->tempnr) {
1149 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1150 PC87365_REG_TEMP_CONFIG);
1151 if (reg & 0x01) {
1152 dev_dbg(&client->dev, "Forcibly enabling "
1153 "monitoring (TMS)\n");
1154 pc87360_write_value(data, LD_TEMP, NO_BANK,
1155 PC87365_REG_TEMP_CONFIG,
1156 reg & 0xFE);
1157 }
1158
1159 if (init >= 2) {
1160 /* Chip config as documented by National Semi. */
1161 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1162 /* We voluntarily omit the bank here, in case the
1163 sequence itself matters. It shouldn't be a problem,
1164 since nobody else is supposed to access the
1165 device at that point. */
1166 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1167 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1168 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1169 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1170 }
1171 }
1172 }
1173
1174 static void pc87360_autodiv(struct i2c_client *client, int nr)
1175 {
1176 struct pc87360_data *data = i2c_get_clientdata(client);
1177 u8 old_min = data->fan_min[nr];
1178
1179 /* Increase clock divider if needed and possible */
1180 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1181 || (data->fan[nr] >= 224)) { /* next to overflow */
1182 if ((data->fan_status[nr] & 0x60) != 0x60) {
1183 data->fan_status[nr] += 0x20;
1184 data->fan_min[nr] >>= 1;
1185 data->fan[nr] >>= 1;
1186 dev_dbg(&client->dev, "Increasing "
1187 "clock divider to %d for fan %d\n",
1188 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1189 }
1190 } else {
1191 /* Decrease clock divider if possible */
1192 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1193 && data->fan[nr] < 85 /* bad accuracy */
1194 && (data->fan_status[nr] & 0x60) != 0x00) {
1195 data->fan_status[nr] -= 0x20;
1196 data->fan_min[nr] <<= 1;
1197 data->fan[nr] <<= 1;
1198 dev_dbg(&client->dev, "Decreasing "
1199 "clock divider to %d for fan %d\n",
1200 FAN_DIV_FROM_REG(data->fan_status[nr]),
1201 nr+1);
1202 }
1203 }
1204
1205 /* Write new fan min if it changed */
1206 if (old_min != data->fan_min[nr]) {
1207 pc87360_write_value(data, LD_FAN, NO_BANK,
1208 PC87360_REG_FAN_MIN(nr),
1209 data->fan_min[nr]);
1210 }
1211 }
1212
1213 static struct pc87360_data *pc87360_update_device(struct device *dev)
1214 {
1215 struct i2c_client *client = to_i2c_client(dev);
1216 struct pc87360_data *data = i2c_get_clientdata(client);
1217 u8 i;
1218
1219 mutex_lock(&data->update_lock);
1220
1221 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1222 dev_dbg(&client->dev, "Data update\n");
1223
1224 /* Fans */
1225 for (i = 0; i < data->fannr; i++) {
1226 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1227 data->fan_status[i] =
1228 pc87360_read_value(data, LD_FAN,
1229 NO_BANK, PC87360_REG_FAN_STATUS(i));
1230 data->fan[i] = pc87360_read_value(data, LD_FAN,
1231 NO_BANK, PC87360_REG_FAN(i));
1232 data->fan_min[i] = pc87360_read_value(data,
1233 LD_FAN, NO_BANK,
1234 PC87360_REG_FAN_MIN(i));
1235 /* Change clock divider if needed */
1236 pc87360_autodiv(client, i);
1237 /* Clear bits and write new divider */
1238 pc87360_write_value(data, LD_FAN, NO_BANK,
1239 PC87360_REG_FAN_STATUS(i),
1240 data->fan_status[i]);
1241 }
1242 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1243 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1244 NO_BANK, PC87360_REG_PWM(i));
1245 }
1246
1247 /* Voltages */
1248 for (i = 0; i < data->innr; i++) {
1249 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1250 PC87365_REG_IN_STATUS);
1251 /* Clear bits */
1252 pc87360_write_value(data, LD_IN, i,
1253 PC87365_REG_IN_STATUS,
1254 data->in_status[i]);
1255 if ((data->in_status[i] & 0x81) == 0x81) {
1256 data->in[i] = pc87360_read_value(data, LD_IN,
1257 i, PC87365_REG_IN);
1258 }
1259 if (data->in_status[i] & 0x01) {
1260 data->in_min[i] = pc87360_read_value(data,
1261 LD_IN, i,
1262 PC87365_REG_IN_MIN);
1263 data->in_max[i] = pc87360_read_value(data,
1264 LD_IN, i,
1265 PC87365_REG_IN_MAX);
1266 if (i >= 11)
1267 data->in_crit[i-11] =
1268 pc87360_read_value(data, LD_IN,
1269 i, PC87365_REG_TEMP_CRIT);
1270 }
1271 }
1272 if (data->innr) {
1273 data->in_alarms = pc87360_read_value(data, LD_IN,
1274 NO_BANK, PC87365_REG_IN_ALARMS1)
1275 | ((pc87360_read_value(data, LD_IN,
1276 NO_BANK, PC87365_REG_IN_ALARMS2)
1277 & 0x07) << 8);
1278 data->vid = (data->vid_conf & 0xE0) ?
1279 pc87360_read_value(data, LD_IN,
1280 NO_BANK, PC87365_REG_VID) : 0x1F;
1281 }
1282
1283 /* Temperatures */
1284 for (i = 0; i < data->tempnr; i++) {
1285 data->temp_status[i] = pc87360_read_value(data,
1286 LD_TEMP, i,
1287 PC87365_REG_TEMP_STATUS);
1288 /* Clear bits */
1289 pc87360_write_value(data, LD_TEMP, i,
1290 PC87365_REG_TEMP_STATUS,
1291 data->temp_status[i]);
1292 if ((data->temp_status[i] & 0x81) == 0x81) {
1293 data->temp[i] = pc87360_read_value(data,
1294 LD_TEMP, i,
1295 PC87365_REG_TEMP);
1296 }
1297 if (data->temp_status[i] & 0x01) {
1298 data->temp_min[i] = pc87360_read_value(data,
1299 LD_TEMP, i,
1300 PC87365_REG_TEMP_MIN);
1301 data->temp_max[i] = pc87360_read_value(data,
1302 LD_TEMP, i,
1303 PC87365_REG_TEMP_MAX);
1304 data->temp_crit[i] = pc87360_read_value(data,
1305 LD_TEMP, i,
1306 PC87365_REG_TEMP_CRIT);
1307 }
1308 }
1309 if (data->tempnr) {
1310 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1311 NO_BANK, PC87365_REG_TEMP_ALARMS)
1312 & 0x3F;
1313 }
1314
1315 data->last_updated = jiffies;
1316 data->valid = 1;
1317 }
1318
1319 mutex_unlock(&data->update_lock);
1320
1321 return data;
1322 }
1323
1324 static int __init pc87360_init(void)
1325 {
1326 int i;
1327
1328 if (pc87360_find(0x2e, &devid, extra_isa)
1329 && pc87360_find(0x4e, &devid, extra_isa)) {
1330 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1331 "module not inserted.\n");
1332 return -ENODEV;
1333 }
1334
1335 /* Arbitrarily pick one of the addresses */
1336 for (i = 0; i < 3; i++) {
1337 if (extra_isa[i] != 0x0000) {
1338 address = extra_isa[i];
1339 break;
1340 }
1341 }
1342
1343 if (address == 0x0000) {
1344 printk(KERN_WARNING "pc87360: No active logical device, "
1345 "module not inserted.\n");
1346 return -ENODEV;
1347 }
1348
1349 return i2c_isa_add_driver(&pc87360_driver);
1350 }
1351
1352 static void __exit pc87360_exit(void)
1353 {
1354 i2c_isa_del_driver(&pc87360_driver);
1355 }
1356
1357
1358 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1359 MODULE_DESCRIPTION("PC8736x hardware monitor");
1360 MODULE_LICENSE("GPL");
1361
1362 module_init(pc87360_init);
1363 module_exit(pc87360_exit);