]> bbs.cooldavid.org Git - net-next-2.6.git/blame - drivers/hwmon/f75375s.c
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
i2c: Add support for device alias names
[net-next-2.6.git] / drivers / hwmon / f75375s.c
CommitLineData
84f1e442
RV		 1/*
2 * f75375s.c - driver for the Fintek F75375/SP and F75373
3 * hardware monitoring features
4 * Copyright (C) 2006-2007 Riku Voipio <riku.voipio@movial.fi>
5 *
6 * Datasheets available at:
7 *
8 * f75375:
9 * http://www.fintek.com.tw/files/productfiles/2005111152950.pdf
10 *
11 * f75373:
12 * http://www.fintek.com.tw/files/productfiles/2005111153128.pdf
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 */
29
30#include <linux/module.h>
31#include <linux/jiffies.h>
32#include <linux/hwmon.h>
33#include <linux/hwmon-sysfs.h>
34#include <linux/i2c.h>
35#include <linux/err.h>
36#include <linux/mutex.h>
ff312d07 37#include <linux/f75375s.h>
84f1e442
RV		 38
39/* Addresses to scan */
25e9c86d 40static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
84f1e442
RV		 41
42/* Insmod parameters */
43I2C_CLIENT_INSMOD_2(f75373, f75375);
44
45/* Fintek F75375 registers */
46#define F75375_REG_CONFIG0 0x0
47#define F75375_REG_CONFIG1 0x1
48#define F75375_REG_CONFIG2 0x2
49#define F75375_REG_CONFIG3 0x3
50#define F75375_REG_ADDR 0x4
51#define F75375_REG_INTR 0x31
52#define F75375_CHIP_ID 0x5A
53#define F75375_REG_VERSION 0x5C
54#define F75375_REG_VENDOR 0x5D
55#define F75375_REG_FAN_TIMER 0x60
56
57#define F75375_REG_VOLT(nr) (0x10 + (nr))
58#define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2)
59#define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2)
60
61#define F75375_REG_TEMP(nr) (0x14 + (nr))
62#define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2)
63#define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2)
64
65#define F75375_REG_FAN(nr) (0x16 + (nr) * 2)
66#define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2)
67#define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10)
68#define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10)
69#define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10)
70
71#define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10)
72#define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
73#define F75375_REG_FAN_B_SPEED(nr, step) \
74 ((0xA5 + (nr) * 0x10) + (step) * 2)
75
76#define F75375_REG_PWM1_RAISE_DUTY 0x69
77#define F75375_REG_PWM2_RAISE_DUTY 0x6A
78#define F75375_REG_PWM1_DROP_DUTY 0x6B
79#define F75375_REG_PWM2_DROP_DUTY 0x6C
80
81#define FAN_CTRL_LINEAR(nr) (4 + nr)
82#define FAN_CTRL_MODE(nr) (5 + ((nr) * 2))
83
84/*
85 * Data structures and manipulation thereof
86 */
87
88struct f75375_data {
89 unsigned short addr;
620c142d 90 struct i2c_client *client;
1beeffe4 91 struct device *hwmon_dev;
84f1e442
RV		 92
93 const char *name;
94 int kind;
95 struct mutex update_lock; /* protect register access */
96 char valid;
97 unsigned long last_updated; /* In jiffies */
98 unsigned long last_limits; /* In jiffies */
99
100 /* Register values */
101 u8 in[4];
102 u8 in_max[4];
103 u8 in_min[4];
104 u16 fan[2];
105 u16 fan_min[2];
106 u16 fan_full[2];
107 u16 fan_exp[2];
108 u8 fan_timer;
109 u8 pwm[2];
110 u8 pwm_mode[2];
111 u8 pwm_enable[2];
112 s8 temp[2];
113 s8 temp_high[2];
114 s8 temp_max_hyst[2];
115};
116
117static int f75375_attach_adapter(struct i2c_adapter *adapter);
118static int f75375_detect(struct i2c_adapter *adapter, int address, int kind);
119static int f75375_detach_client(struct i2c_client *client);
d2653e92
JD		 120static int f75375_probe(struct i2c_client *client,
121 const struct i2c_device_id *id);
620c142d 122static int f75375_remove(struct i2c_client *client);
84f1e442 123
620c142d 124static struct i2c_driver f75375_legacy_driver = {
84f1e442 125 .driver = {
620c142d 126 .name = "f75375_legacy",
84f1e442
RV		 127 },
128 .attach_adapter = f75375_attach_adapter,
129 .detach_client = f75375_detach_client,
130};
131
620c142d
RV		 132static struct i2c_driver f75375_driver = {
133 .driver = {
134 .name = "f75375",
135 },
136 .probe = f75375_probe,
137 .remove = f75375_remove,
138};
139
84f1e442
RV		 140static inline int f75375_read8(struct i2c_client *client, u8 reg)
141{
142 return i2c_smbus_read_byte_data(client, reg);
143}
144
145/* in most cases, should be called while holding update_lock */
146static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
147{
148 return ((i2c_smbus_read_byte_data(client, reg) << 8)
149 | i2c_smbus_read_byte_data(client, reg + 1));
150}
151
152static inline void f75375_write8(struct i2c_client *client, u8 reg,
153 u8 value)
154{
155 i2c_smbus_write_byte_data(client, reg, value);
156}
157
158static inline void f75375_write16(struct i2c_client *client, u8 reg,
159 u16 value)
160{
161 int err = i2c_smbus_write_byte_data(client, reg, (value << 8));
162 if (err)
163 return;
164 i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
165}
166
167static struct f75375_data *f75375_update_device(struct device *dev)
168{
169 struct i2c_client *client = to_i2c_client(dev);
170 struct f75375_data *data = i2c_get_clientdata(client);
171 int nr;
172
173 mutex_lock(&data->update_lock);
174
175 /* Limit registers cache is refreshed after 60 seconds */
176 if (time_after(jiffies, data->last_limits + 60 * HZ)
177 || !data->valid) {
178 for (nr = 0; nr < 2; nr++) {
179 data->temp_high[nr] =
180 f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
181 data->temp_max_hyst[nr] =
182 f75375_read8(client, F75375_REG_TEMP_HYST(nr));
183 data->fan_full[nr] =
184 f75375_read16(client, F75375_REG_FAN_FULL(nr));
185 data->fan_min[nr] =
186 f75375_read16(client, F75375_REG_FAN_MIN(nr));
187 data->fan_exp[nr] =
188 f75375_read16(client, F75375_REG_FAN_EXP(nr));
189 data->pwm[nr] = f75375_read8(client,
190 F75375_REG_FAN_PWM_DUTY(nr));
191
192 }
193 for (nr = 0; nr < 4; nr++) {
194 data->in_max[nr] =
195 f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
196 data->in_min[nr] =
197 f75375_read8(client, F75375_REG_VOLT_LOW(nr));
198 }
199 data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
200 data->last_limits = jiffies;
201 }
202
203 /* Measurement registers cache is refreshed after 2 second */
204 if (time_after(jiffies, data->last_updated + 2 * HZ)
205 || !data->valid) {
206 for (nr = 0; nr < 2; nr++) {
207 data->temp[nr] =
208 f75375_read8(client, F75375_REG_TEMP(nr));
209 data->fan[nr] =
210 f75375_read16(client, F75375_REG_FAN(nr));
211 }
212 for (nr = 0; nr < 4; nr++)
213 data->in[nr] =
214 f75375_read8(client, F75375_REG_VOLT(nr));
215
216 data->last_updated = jiffies;
217 data->valid = 1;
218 }
219
220 mutex_unlock(&data->update_lock);
221 return data;
222}
223
224static inline u16 rpm_from_reg(u16 reg)
225{
226 if (reg == 0 || reg == 0xffff)
227 return 0;
228 return (1500000 / reg);
229}
230
231static inline u16 rpm_to_reg(int rpm)
232{
233 if (rpm < 367 || rpm > 0xffff)
234 return 0xffff;
235 return (1500000 / rpm);
236}
237
238static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
239 const char *buf, size_t count)
240{
241 int nr = to_sensor_dev_attr(attr)->index;
242 struct i2c_client *client = to_i2c_client(dev);
243 struct f75375_data *data = i2c_get_clientdata(client);
244 int val = simple_strtoul(buf, NULL, 10);
245
246 mutex_lock(&data->update_lock);
247 data->fan_min[nr] = rpm_to_reg(val);
248 f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
249 mutex_unlock(&data->update_lock);
250 return count;
251}
252
253static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr,
254 const char *buf, size_t count)
255{
256 int nr = to_sensor_dev_attr(attr)->index;
257 struct i2c_client *client = to_i2c_client(dev);
258 struct f75375_data *data = i2c_get_clientdata(client);
259 int val = simple_strtoul(buf, NULL, 10);
260
261 mutex_lock(&data->update_lock);
262 data->fan_exp[nr] = rpm_to_reg(val);
263 f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]);
264 mutex_unlock(&data->update_lock);
265 return count;
266}
267
268static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
269 const char *buf, size_t count)
270{
271 int nr = to_sensor_dev_attr(attr)->index;
272 struct i2c_client *client = to_i2c_client(dev);
273 struct f75375_data *data = i2c_get_clientdata(client);
274 int val = simple_strtoul(buf, NULL, 10);
275
276 mutex_lock(&data->update_lock);
277 data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
278 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
279 mutex_unlock(&data->update_lock);
280 return count;
281}
282
283static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
284 *attr, char *buf)
285{
286 int nr = to_sensor_dev_attr(attr)->index;
287 struct f75375_data *data = f75375_update_device(dev);
288 return sprintf(buf, "%d\n", data->pwm_enable[nr]);
289}
290
ff312d07 291static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
84f1e442 292{
84f1e442 293 struct f75375_data *data = i2c_get_clientdata(client);
84f1e442
RV		 294 u8 fanmode;
295
296 if (val < 0 || val > 4)
297 return -EINVAL;
298
84f1e442
RV		 299 fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
300 fanmode = ~(3 << FAN_CTRL_MODE(nr));
301
302 switch (val) {
303 case 0: /* Full speed */
304 fanmode |= (3 << FAN_CTRL_MODE(nr));
305 data->pwm[nr] = 255;
306 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
307 data->pwm[nr]);
308 break;
309 case 1: /* PWM */
310 fanmode |= (3 << FAN_CTRL_MODE(nr));
311 break;
312 case 2: /* AUTOMATIC*/
313 fanmode |= (2 << FAN_CTRL_MODE(nr));
314 break;
315 case 3: /* fan speed */
316 break;
317 }
318 f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
319 data->pwm_enable[nr] = val;
ff312d07
RV		 320 return 0;
321}
322
323static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
324 const char *buf, size_t count)
325{
326 int nr = to_sensor_dev_attr(attr)->index;
327 struct i2c_client *client = to_i2c_client(dev);
328 struct f75375_data *data = i2c_get_clientdata(client);
329 int val = simple_strtoul(buf, NULL, 10);
330 int err = 0;
331
332 mutex_lock(&data->update_lock);
333 err = set_pwm_enable_direct(client, nr, val);
84f1e442 334 mutex_unlock(&data->update_lock);
ff312d07 335 return err ? err : count;
84f1e442
RV		 336}
337
338static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
339 const char *buf, size_t count)
340{
341 int nr = to_sensor_dev_attr(attr)->index;
342 struct i2c_client *client = to_i2c_client(dev);
343 struct f75375_data *data = i2c_get_clientdata(client);
344 int val = simple_strtoul(buf, NULL, 10);
345 u8 conf = 0;
346
76e83bef 347 if (!(val == 0 || val == 1))
84f1e442
RV		 348 return -EINVAL;
349
350 mutex_lock(&data->update_lock);
351 conf = f75375_read8(client, F75375_REG_CONFIG1);
352 conf = ~(1 << FAN_CTRL_LINEAR(nr));
353
354 if (val == 0)
355 conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
356
357 f75375_write8(client, F75375_REG_CONFIG1, conf);
358 data->pwm_mode[nr] = val;
359 mutex_unlock(&data->update_lock);
360 return count;
361}
362
363static ssize_t show_pwm(struct device *dev, struct device_attribute
364 *attr, char *buf)
365{
366 int nr = to_sensor_dev_attr(attr)->index;
367 struct f75375_data *data = f75375_update_device(dev);
368 return sprintf(buf, "%d\n", data->pwm[nr]);
369}
370
371static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
372 *attr, char *buf)
373{
374 int nr = to_sensor_dev_attr(attr)->index;
375 struct f75375_data *data = f75375_update_device(dev);
376 return sprintf(buf, "%d\n", data->pwm_mode[nr]);
377}
378
379#define VOLT_FROM_REG(val) ((val) * 8)
380#define VOLT_TO_REG(val) ((val) / 8)
381
382static ssize_t show_in(struct device *dev, struct device_attribute *attr,
383 char *buf)
384{
385 int nr = to_sensor_dev_attr(attr)->index;
386 struct f75375_data *data = f75375_update_device(dev);
387 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
388}
389
390static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
391 char *buf)
392{
393 int nr = to_sensor_dev_attr(attr)->index;
394 struct f75375_data *data = f75375_update_device(dev);
395 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
396}
397
398static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
399 char *buf)
400{
401 int nr = to_sensor_dev_attr(attr)->index;
402 struct f75375_data *data = f75375_update_device(dev);
403 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
404}
405
406static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
407 const char *buf, size_t count)
408{
409 int nr = to_sensor_dev_attr(attr)->index;
410 struct i2c_client *client = to_i2c_client(dev);
411 struct f75375_data *data = i2c_get_clientdata(client);
412 int val = simple_strtoul(buf, NULL, 10);
413 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
414 mutex_lock(&data->update_lock);
415 data->in_max[nr] = val;
416 f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
417 mutex_unlock(&data->update_lock);
418 return count;
419}
420
421static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
422 const char *buf, size_t count)
423{
424 int nr = to_sensor_dev_attr(attr)->index;
425 struct i2c_client *client = to_i2c_client(dev);
426 struct f75375_data *data = i2c_get_clientdata(client);
427 int val = simple_strtoul(buf, NULL, 10);
428 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
429 mutex_lock(&data->update_lock);
430 data->in_min[nr] = val;
431 f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
432 mutex_unlock(&data->update_lock);
433 return count;
434}
435#define TEMP_FROM_REG(val) ((val) * 1000)
436#define TEMP_TO_REG(val) ((val) / 1000)
437
438static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
439 char *buf)
440{
441 int nr = to_sensor_dev_attr(attr)->index;
442 struct f75375_data *data = f75375_update_device(dev);
443 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
444}
445
446static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
447 char *buf)
448{
449 int nr = to_sensor_dev_attr(attr)->index;
450 struct f75375_data *data = f75375_update_device(dev);
451 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
452}
453
454static ssize_t show_temp_max_hyst(struct device *dev,
455 struct device_attribute *attr, char *buf)
456{
457 int nr = to_sensor_dev_attr(attr)->index;
458 struct f75375_data *data = f75375_update_device(dev);
459 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
460}
461
462static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
463 const char *buf, size_t count)
464{
465 int nr = to_sensor_dev_attr(attr)->index;
466 struct i2c_client *client = to_i2c_client(dev);
467 struct f75375_data *data = i2c_get_clientdata(client);
468 int val = simple_strtol(buf, NULL, 10);
469 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
470 mutex_lock(&data->update_lock);
471 data->temp_high[nr] = val;
472 f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
473 mutex_unlock(&data->update_lock);
474 return count;
475}
476
477static ssize_t set_temp_max_hyst(struct device *dev,
478 struct device_attribute *attr, const char *buf, size_t count)
479{
480 int nr = to_sensor_dev_attr(attr)->index;
481 struct i2c_client *client = to_i2c_client(dev);
482 struct f75375_data *data = i2c_get_clientdata(client);
483 int val = simple_strtol(buf, NULL, 10);
484 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
485 mutex_lock(&data->update_lock);
486 data->temp_max_hyst[nr] = val;
487 f75375_write8(client, F75375_REG_TEMP_HYST(nr),
488 data->temp_max_hyst[nr]);
489 mutex_unlock(&data->update_lock);
490 return count;
491}
492
493#define show_fan(thing) \
494static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
495 char *buf)\
496{\
497 int nr = to_sensor_dev_attr(attr)->index;\
498 struct f75375_data *data = f75375_update_device(dev); \
499 return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
500}
501
502show_fan(fan);
503show_fan(fan_min);
504show_fan(fan_full);
505show_fan(fan_exp);
506
507static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
508static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
509 show_in_max, set_in_max, 0);
510static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
511 show_in_min, set_in_min, 0);
512static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
513static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
514 show_in_max, set_in_max, 1);
515static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
516 show_in_min, set_in_min, 1);
517static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
518static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
519 show_in_max, set_in_max, 2);
520static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
521 show_in_min, set_in_min, 2);
522static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
523static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
524 show_in_max, set_in_max, 3);
525static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
526 show_in_min, set_in_min, 3);
527static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
528static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
529 show_temp_max_hyst, set_temp_max_hyst, 0);
530static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
531 show_temp_max, set_temp_max, 0);
532static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
533static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
534 show_temp_max_hyst, set_temp_max_hyst, 1);
535static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
536 show_temp_max, set_temp_max, 1);
537static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
538static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0);
539static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
540 show_fan_min, set_fan_min, 0);
541static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR,
542 show_fan_exp, set_fan_exp, 0);
543static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
544static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1);
545static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
546 show_fan_min, set_fan_min, 1);
547static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR,
548 show_fan_exp, set_fan_exp, 1);
549static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
550 show_pwm, set_pwm, 0);
551static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
552 show_pwm_enable, set_pwm_enable, 0);
76e83bef 553static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
84f1e442
RV		 554 show_pwm_mode, set_pwm_mode, 0);
555static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
556 show_pwm, set_pwm, 1);
557static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
558 show_pwm_enable, set_pwm_enable, 1);
76e83bef 559static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
84f1e442
RV		 560 show_pwm_mode, set_pwm_mode, 1);
561
562static struct attribute *f75375_attributes[] = {
563 &sensor_dev_attr_temp1_input.dev_attr.attr,
564 &sensor_dev_attr_temp1_max.dev_attr.attr,
565 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
566 &sensor_dev_attr_temp2_input.dev_attr.attr,
567 &sensor_dev_attr_temp2_max.dev_attr.attr,
568 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
569 &sensor_dev_attr_fan1_input.dev_attr.attr,
570 &sensor_dev_attr_fan1_full.dev_attr.attr,
571 &sensor_dev_attr_fan1_min.dev_attr.attr,
572 &sensor_dev_attr_fan1_exp.dev_attr.attr,
573 &sensor_dev_attr_fan2_input.dev_attr.attr,
574 &sensor_dev_attr_fan2_full.dev_attr.attr,
575 &sensor_dev_attr_fan2_min.dev_attr.attr,
576 &sensor_dev_attr_fan2_exp.dev_attr.attr,
577 &sensor_dev_attr_pwm1.dev_attr.attr,
578 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
579 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
580 &sensor_dev_attr_pwm2.dev_attr.attr,
581 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
582 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
583 &sensor_dev_attr_in0_input.dev_attr.attr,
584 &sensor_dev_attr_in0_max.dev_attr.attr,
585 &sensor_dev_attr_in0_min.dev_attr.attr,
586 &sensor_dev_attr_in1_input.dev_attr.attr,
587 &sensor_dev_attr_in1_max.dev_attr.attr,
588 &sensor_dev_attr_in1_min.dev_attr.attr,
589 &sensor_dev_attr_in2_input.dev_attr.attr,
590 &sensor_dev_attr_in2_max.dev_attr.attr,
591 &sensor_dev_attr_in2_min.dev_attr.attr,
592 &sensor_dev_attr_in3_input.dev_attr.attr,
593 &sensor_dev_attr_in3_max.dev_attr.attr,
594 &sensor_dev_attr_in3_min.dev_attr.attr,
595 NULL
596};
597
598static const struct attribute_group f75375_group = {
599 .attrs = f75375_attributes,
600};
601
602static int f75375_detach_client(struct i2c_client *client)
603{
84f1e442
RV		 604 int err;
605
620c142d 606 f75375_remove(client);
84f1e442
RV		 607 err = i2c_detach_client(client);
608 if (err) {
609 dev_err(&client->dev,
610 "Client deregistration failed, "
611 "client not detached.\n");
612 return err;
613 }
620c142d
RV		 614 kfree(client);
615 return 0;
616}
617
ff312d07
RV		 618static void f75375_init(struct i2c_client *client, struct f75375_data *data,
619 struct f75375s_platform_data *f75375s_pdata)
620{
621 int nr;
622 set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
623 set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
624 for (nr = 0; nr < 2; nr++) {
625 data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
626 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
627 data->pwm[nr]);
628 }
629
630}
631
d2653e92
JD		 632static int f75375_probe(struct i2c_client *client,
633 const struct i2c_device_id *id)
620c142d
RV		 634{
635 struct f75375_data *data = i2c_get_clientdata(client);
ff312d07 636 struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
620c142d
RV		 637 int err;
638
639 if (!i2c_check_functionality(client->adapter,
640 I2C_FUNC_SMBUS_BYTE_DATA))
641 return -EIO;
642 if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL)))
643 return -ENOMEM;
644
645 i2c_set_clientdata(client, data);
646 data->client = client;
647 mutex_init(&data->update_lock);
648
649 if (strcmp(client->name, "f75375") == 0)
650 data->kind = f75375;
651 else if (strcmp(client->name, "f75373") == 0)
652 data->kind = f75373;
653 else {
654 dev_err(&client->dev, "Unsupported device: %s\n", client->name);
655 return -ENODEV;
656 }
657
658 if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
659 goto exit_free;
660
76e83bef
RV		 661 if (data->kind == f75375) {
662 err = sysfs_chmod_file(&client->dev.kobj,
663 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
664 S_IRUGO | S_IWUSR);
665 if (err)
666 goto exit_remove;
667 err = sysfs_chmod_file(&client->dev.kobj,
668 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
669 S_IRUGO | S_IWUSR);
670 if (err)
671 goto exit_remove;
672 }
673
620c142d
RV		 674 data->hwmon_dev = hwmon_device_register(&client->dev);
675 if (IS_ERR(data->hwmon_dev)) {
676 err = PTR_ERR(data->hwmon_dev);
677 goto exit_remove;
678 }
679
ff312d07
RV		 680 if (f75375s_pdata != NULL)
681 f75375_init(client, data, f75375s_pdata);
682
620c142d
RV		 683 return 0;
684
685exit_remove:
686 sysfs_remove_group(&client->dev.kobj, &f75375_group);
687exit_free:
688 kfree(data);
689 i2c_set_clientdata(client, NULL);
690 return err;
691}
692
693static int f75375_remove(struct i2c_client *client)
694{
695 struct f75375_data *data = i2c_get_clientdata(client);
696 hwmon_device_unregister(data->hwmon_dev);
697 sysfs_remove_group(&client->dev.kobj, &f75375_group);
84f1e442 698 kfree(data);
620c142d 699 i2c_set_clientdata(client, NULL);
84f1e442
RV		 700 return 0;
701}
702
703static int f75375_attach_adapter(struct i2c_adapter *adapter)
704{
705 if (!(adapter->class & I2C_CLASS_HWMON))
706 return 0;
707 return i2c_probe(adapter, &addr_data, f75375_detect);
708}
709
710/* This function is called by i2c_probe */
711static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
712{
713 struct i2c_client *client;
84f1e442
RV		 714 u8 version = 0;
715 int err = 0;
716 const char *name = "";
717
620c142d 718 if (!(client = kzalloc(sizeof(*client), GFP_KERNEL))) {
84f1e442
RV		 719 err = -ENOMEM;
720 goto exit;
721 }
84f1e442
RV		 722 client->addr = address;
723 client->adapter = adapter;
620c142d 724 client->driver = &f75375_legacy_driver;
84f1e442
RV		 725
726 if (kind < 0) {
727 u16 vendid = f75375_read16(client, F75375_REG_VENDOR);
728 u16 chipid = f75375_read16(client, F75375_CHIP_ID);
729 version = f75375_read8(client, F75375_REG_VERSION);
730 if (chipid == 0x0306 && vendid == 0x1934) {
731 kind = f75375;
732 } else if (chipid == 0x0204 && vendid == 0x1934) {
733 kind = f75373;
734 } else {
735 dev_err(&adapter->dev,
736 "failed,%02X,%02X,%02X\n",
737 chipid, version, vendid);
738 goto exit_free;
739 }
740 }
741
742 if (kind == f75375) {
743 name = "f75375";
744 } else if (kind == f75373) {
745 name = "f75373";
746 }
84f1e442
RV		 747 dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
748 strlcpy(client->name, name, I2C_NAME_SIZE);
620c142d 749
84f1e442
RV		 750 if ((err = i2c_attach_client(client)))
751 goto exit_free;
752
d2653e92 753 if ((err = f75375_probe(client, NULL)) < 0)
84f1e442
RV		 754 goto exit_detach;
755
84f1e442
RV		 756 return 0;
757
84f1e442
RV		 758exit_detach:
759 i2c_detach_client(client);
760exit_free:
620c142d 761 kfree(client);
84f1e442
RV		 762exit:
763 return err;
764}
765
766static int __init sensors_f75375_init(void)
767{
620c142d
RV		 768 int status;
769 status = i2c_add_driver(&f75375_driver);
770 if (status)
771 return status;
772
773 status = i2c_add_driver(&f75375_legacy_driver);
774 if (status)
775 i2c_del_driver(&f75375_driver);
776
777 return status;
84f1e442
RV		 778}
779
780static void __exit sensors_f75375_exit(void)
781{
620c142d 782 i2c_del_driver(&f75375_legacy_driver);
84f1e442
RV		 783 i2c_del_driver(&f75375_driver);
784}
785
786MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>");
787MODULE_LICENSE("GPL");
788MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
789
790module_init(sensors_f75375_init);
791module_exit(sensors_f75375_exit);
Clone of davem's net-next-2.6 tree