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hwmon: (f75375s) Add new style bindings
[deliverable/linux.git] / drivers / hwmon / f75375s.c
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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>
37
38/* Addresses to scan */
39static unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
40
41/* Insmod parameters */
42I2C_CLIENT_INSMOD_2(f75373, f75375);
43
44/* Fintek F75375 registers */
45#define F75375_REG_CONFIG0 0x0
46#define F75375_REG_CONFIG1 0x1
47#define F75375_REG_CONFIG2 0x2
48#define F75375_REG_CONFIG3 0x3
49#define F75375_REG_ADDR 0x4
50#define F75375_REG_INTR 0x31
51#define F75375_CHIP_ID 0x5A
52#define F75375_REG_VERSION 0x5C
53#define F75375_REG_VENDOR 0x5D
54#define F75375_REG_FAN_TIMER 0x60
55
56#define F75375_REG_VOLT(nr) (0x10 + (nr))
57#define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2)
58#define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2)
59
60#define F75375_REG_TEMP(nr) (0x14 + (nr))
61#define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2)
62#define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2)
63
64#define F75375_REG_FAN(nr) (0x16 + (nr) * 2)
65#define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2)
66#define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10)
67#define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10)
68#define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10)
69
70#define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10)
71#define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
72#define F75375_REG_FAN_B_SPEED(nr, step) \
73 ((0xA5 + (nr) * 0x10) + (step) * 2)
74
75#define F75375_REG_PWM1_RAISE_DUTY 0x69
76#define F75375_REG_PWM2_RAISE_DUTY 0x6A
77#define F75375_REG_PWM1_DROP_DUTY 0x6B
78#define F75375_REG_PWM2_DROP_DUTY 0x6C
79
80#define FAN_CTRL_LINEAR(nr) (4 + nr)
81#define FAN_CTRL_MODE(nr) (5 + ((nr) * 2))
82
83/*
84 * Data structures and manipulation thereof
85 */
86
87struct f75375_data {
88 unsigned short addr;
620c142d 89 struct i2c_client *client;
1beeffe4 90 struct device *hwmon_dev;
84f1e442
RV		 91
92 const char *name;
93 int kind;
94 struct mutex update_lock; /* protect register access */
95 char valid;
96 unsigned long last_updated; /* In jiffies */
97 unsigned long last_limits; /* In jiffies */
98
99 /* Register values */
100 u8 in[4];
101 u8 in_max[4];
102 u8 in_min[4];
103 u16 fan[2];
104 u16 fan_min[2];
105 u16 fan_full[2];
106 u16 fan_exp[2];
107 u8 fan_timer;
108 u8 pwm[2];
109 u8 pwm_mode[2];
110 u8 pwm_enable[2];
111 s8 temp[2];
112 s8 temp_high[2];
113 s8 temp_max_hyst[2];
114};
115
116static int f75375_attach_adapter(struct i2c_adapter *adapter);
117static int f75375_detect(struct i2c_adapter *adapter, int address, int kind);
118static int f75375_detach_client(struct i2c_client *client);
620c142d
RV		 119static int f75375_probe(struct i2c_client *client);
120static int f75375_remove(struct i2c_client *client);
84f1e442 121
620c142d 122static struct i2c_driver f75375_legacy_driver = {
84f1e442 123 .driver = {
620c142d 124 .name = "f75375_legacy",
84f1e442
RV		 125 },
126 .attach_adapter = f75375_attach_adapter,
127 .detach_client = f75375_detach_client,
128};
129
620c142d
RV		 130static struct i2c_driver f75375_driver = {
131 .driver = {
132 .name = "f75375",
133 },
134 .probe = f75375_probe,
135 .remove = f75375_remove,
136};
137
84f1e442
RV		 138static inline int f75375_read8(struct i2c_client *client, u8 reg)
139{
140 return i2c_smbus_read_byte_data(client, reg);
141}
142
143/* in most cases, should be called while holding update_lock */
144static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
145{
146 return ((i2c_smbus_read_byte_data(client, reg) << 8)
147 | i2c_smbus_read_byte_data(client, reg + 1));
148}
149
150static inline void f75375_write8(struct i2c_client *client, u8 reg,
151 u8 value)
152{
153 i2c_smbus_write_byte_data(client, reg, value);
154}
155
156static inline void f75375_write16(struct i2c_client *client, u8 reg,
157 u16 value)
158{
159 int err = i2c_smbus_write_byte_data(client, reg, (value << 8));
160 if (err)
161 return;
162 i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
163}
164
165static struct f75375_data *f75375_update_device(struct device *dev)
166{
167 struct i2c_client *client = to_i2c_client(dev);
168 struct f75375_data *data = i2c_get_clientdata(client);
169 int nr;
170
171 mutex_lock(&data->update_lock);
172
173 /* Limit registers cache is refreshed after 60 seconds */
174 if (time_after(jiffies, data->last_limits + 60 * HZ)
175 || !data->valid) {
176 for (nr = 0; nr < 2; nr++) {
177 data->temp_high[nr] =
178 f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
179 data->temp_max_hyst[nr] =
180 f75375_read8(client, F75375_REG_TEMP_HYST(nr));
181 data->fan_full[nr] =
182 f75375_read16(client, F75375_REG_FAN_FULL(nr));
183 data->fan_min[nr] =
184 f75375_read16(client, F75375_REG_FAN_MIN(nr));
185 data->fan_exp[nr] =
186 f75375_read16(client, F75375_REG_FAN_EXP(nr));
187 data->pwm[nr] = f75375_read8(client,
188 F75375_REG_FAN_PWM_DUTY(nr));
189
190 }
191 for (nr = 0; nr < 4; nr++) {
192 data->in_max[nr] =
193 f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
194 data->in_min[nr] =
195 f75375_read8(client, F75375_REG_VOLT_LOW(nr));
196 }
197 data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
198 data->last_limits = jiffies;
199 }
200
201 /* Measurement registers cache is refreshed after 2 second */
202 if (time_after(jiffies, data->last_updated + 2 * HZ)
203 || !data->valid) {
204 for (nr = 0; nr < 2; nr++) {
205 data->temp[nr] =
206 f75375_read8(client, F75375_REG_TEMP(nr));
207 data->fan[nr] =
208 f75375_read16(client, F75375_REG_FAN(nr));
209 }
210 for (nr = 0; nr < 4; nr++)
211 data->in[nr] =
212 f75375_read8(client, F75375_REG_VOLT(nr));
213
214 data->last_updated = jiffies;
215 data->valid = 1;
216 }
217
218 mutex_unlock(&data->update_lock);
219 return data;
220}
221
222static inline u16 rpm_from_reg(u16 reg)
223{
224 if (reg == 0 || reg == 0xffff)
225 return 0;
226 return (1500000 / reg);
227}
228
229static inline u16 rpm_to_reg(int rpm)
230{
231 if (rpm < 367 || rpm > 0xffff)
232 return 0xffff;
233 return (1500000 / rpm);
234}
235
236static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
237 const char *buf, size_t count)
238{
239 int nr = to_sensor_dev_attr(attr)->index;
240 struct i2c_client *client = to_i2c_client(dev);
241 struct f75375_data *data = i2c_get_clientdata(client);
242 int val = simple_strtoul(buf, NULL, 10);
243
244 mutex_lock(&data->update_lock);
245 data->fan_min[nr] = rpm_to_reg(val);
246 f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
247 mutex_unlock(&data->update_lock);
248 return count;
249}
250
251static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr,
252 const char *buf, size_t count)
253{
254 int nr = to_sensor_dev_attr(attr)->index;
255 struct i2c_client *client = to_i2c_client(dev);
256 struct f75375_data *data = i2c_get_clientdata(client);
257 int val = simple_strtoul(buf, NULL, 10);
258
259 mutex_lock(&data->update_lock);
260 data->fan_exp[nr] = rpm_to_reg(val);
261 f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]);
262 mutex_unlock(&data->update_lock);
263 return count;
264}
265
266static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
267 const char *buf, size_t count)
268{
269 int nr = to_sensor_dev_attr(attr)->index;
270 struct i2c_client *client = to_i2c_client(dev);
271 struct f75375_data *data = i2c_get_clientdata(client);
272 int val = simple_strtoul(buf, NULL, 10);
273
274 mutex_lock(&data->update_lock);
275 data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
276 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
277 mutex_unlock(&data->update_lock);
278 return count;
279}
280
281static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
282 *attr, char *buf)
283{
284 int nr = to_sensor_dev_attr(attr)->index;
285 struct f75375_data *data = f75375_update_device(dev);
286 return sprintf(buf, "%d\n", data->pwm_enable[nr]);
287}
288
289static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
290 const char *buf, size_t count)
291{
292 int nr = to_sensor_dev_attr(attr)->index;
293 struct i2c_client *client = to_i2c_client(dev);
294 struct f75375_data *data = i2c_get_clientdata(client);
295 int val = simple_strtoul(buf, NULL, 10);
296 u8 fanmode;
297
298 if (val < 0 || val > 4)
299 return -EINVAL;
300
301 mutex_lock(&data->update_lock);
302 fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
303 fanmode = ~(3 << FAN_CTRL_MODE(nr));
304
305 switch (val) {
306 case 0: /* Full speed */
307 fanmode |= (3 << FAN_CTRL_MODE(nr));
308 data->pwm[nr] = 255;
309 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
310 data->pwm[nr]);
311 break;
312 case 1: /* PWM */
313 fanmode |= (3 << FAN_CTRL_MODE(nr));
314 break;
315 case 2: /* AUTOMATIC*/
316 fanmode |= (2 << FAN_CTRL_MODE(nr));
317 break;
318 case 3: /* fan speed */
319 break;
320 }
321 f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
322 data->pwm_enable[nr] = val;
323 mutex_unlock(&data->update_lock);
324 return count;
325}
326
327static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
328 const char *buf, size_t count)
329{
330 int nr = to_sensor_dev_attr(attr)->index;
331 struct i2c_client *client = to_i2c_client(dev);
332 struct f75375_data *data = i2c_get_clientdata(client);
333 int val = simple_strtoul(buf, NULL, 10);
334 u8 conf = 0;
335
19e4f3a6 336 if (!(val == 0 || val == 1) || data->kind == f75373)
84f1e442
RV		 337 return -EINVAL;
338
339 mutex_lock(&data->update_lock);
340 conf = f75375_read8(client, F75375_REG_CONFIG1);
341 conf = ~(1 << FAN_CTRL_LINEAR(nr));
342
343 if (val == 0)
344 conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
345
346 f75375_write8(client, F75375_REG_CONFIG1, conf);
347 data->pwm_mode[nr] = val;
348 mutex_unlock(&data->update_lock);
349 return count;
350}
351
352static ssize_t show_pwm(struct device *dev, struct device_attribute
353 *attr, char *buf)
354{
355 int nr = to_sensor_dev_attr(attr)->index;
356 struct f75375_data *data = f75375_update_device(dev);
357 return sprintf(buf, "%d\n", data->pwm[nr]);
358}
359
360static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
361 *attr, char *buf)
362{
363 int nr = to_sensor_dev_attr(attr)->index;
364 struct f75375_data *data = f75375_update_device(dev);
365 return sprintf(buf, "%d\n", data->pwm_mode[nr]);
366}
367
368#define VOLT_FROM_REG(val) ((val) * 8)
369#define VOLT_TO_REG(val) ((val) / 8)
370
371static ssize_t show_in(struct device *dev, struct device_attribute *attr,
372 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", VOLT_FROM_REG(data->in[nr]));
377}
378
379static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
380 char *buf)
381{
382 int nr = to_sensor_dev_attr(attr)->index;
383 struct f75375_data *data = f75375_update_device(dev);
384 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
385}
386
387static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
388 char *buf)
389{
390 int nr = to_sensor_dev_attr(attr)->index;
391 struct f75375_data *data = f75375_update_device(dev);
392 return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
393}
394
395static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
396 const char *buf, size_t count)
397{
398 int nr = to_sensor_dev_attr(attr)->index;
399 struct i2c_client *client = to_i2c_client(dev);
400 struct f75375_data *data = i2c_get_clientdata(client);
401 int val = simple_strtoul(buf, NULL, 10);
402 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
403 mutex_lock(&data->update_lock);
404 data->in_max[nr] = val;
405 f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
406 mutex_unlock(&data->update_lock);
407 return count;
408}
409
410static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
411 const char *buf, size_t count)
412{
413 int nr = to_sensor_dev_attr(attr)->index;
414 struct i2c_client *client = to_i2c_client(dev);
415 struct f75375_data *data = i2c_get_clientdata(client);
416 int val = simple_strtoul(buf, NULL, 10);
417 val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
418 mutex_lock(&data->update_lock);
419 data->in_min[nr] = val;
420 f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
421 mutex_unlock(&data->update_lock);
422 return count;
423}
424#define TEMP_FROM_REG(val) ((val) * 1000)
425#define TEMP_TO_REG(val) ((val) / 1000)
426
427static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
428 char *buf)
429{
430 int nr = to_sensor_dev_attr(attr)->index;
431 struct f75375_data *data = f75375_update_device(dev);
432 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
433}
434
435static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
436 char *buf)
437{
438 int nr = to_sensor_dev_attr(attr)->index;
439 struct f75375_data *data = f75375_update_device(dev);
440 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
441}
442
443static ssize_t show_temp_max_hyst(struct device *dev,
444 struct device_attribute *attr, char *buf)
445{
446 int nr = to_sensor_dev_attr(attr)->index;
447 struct f75375_data *data = f75375_update_device(dev);
448 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
449}
450
451static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
452 const char *buf, size_t count)
453{
454 int nr = to_sensor_dev_attr(attr)->index;
455 struct i2c_client *client = to_i2c_client(dev);
456 struct f75375_data *data = i2c_get_clientdata(client);
457 int val = simple_strtol(buf, NULL, 10);
458 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
459 mutex_lock(&data->update_lock);
460 data->temp_high[nr] = val;
461 f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
462 mutex_unlock(&data->update_lock);
463 return count;
464}
465
466static ssize_t set_temp_max_hyst(struct device *dev,
467 struct device_attribute *attr, const char *buf, size_t count)
468{
469 int nr = to_sensor_dev_attr(attr)->index;
470 struct i2c_client *client = to_i2c_client(dev);
471 struct f75375_data *data = i2c_get_clientdata(client);
472 int val = simple_strtol(buf, NULL, 10);
473 val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
474 mutex_lock(&data->update_lock);
475 data->temp_max_hyst[nr] = val;
476 f75375_write8(client, F75375_REG_TEMP_HYST(nr),
477 data->temp_max_hyst[nr]);
478 mutex_unlock(&data->update_lock);
479 return count;
480}
481
482#define show_fan(thing) \
483static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
484 char *buf)\
485{\
486 int nr = to_sensor_dev_attr(attr)->index;\
487 struct f75375_data *data = f75375_update_device(dev); \
488 return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
489}
490
491show_fan(fan);
492show_fan(fan_min);
493show_fan(fan_full);
494show_fan(fan_exp);
495
496static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
497static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
498 show_in_max, set_in_max, 0);
499static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
500 show_in_min, set_in_min, 0);
501static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
502static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
503 show_in_max, set_in_max, 1);
504static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
505 show_in_min, set_in_min, 1);
506static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
507static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
508 show_in_max, set_in_max, 2);
509static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
510 show_in_min, set_in_min, 2);
511static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
512static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
513 show_in_max, set_in_max, 3);
514static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
515 show_in_min, set_in_min, 3);
516static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
517static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
518 show_temp_max_hyst, set_temp_max_hyst, 0);
519static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
520 show_temp_max, set_temp_max, 0);
521static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
522static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
523 show_temp_max_hyst, set_temp_max_hyst, 1);
524static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
525 show_temp_max, set_temp_max, 1);
526static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
527static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0);
528static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
529 show_fan_min, set_fan_min, 0);
530static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR,
531 show_fan_exp, set_fan_exp, 0);
532static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
533static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1);
534static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
535 show_fan_min, set_fan_min, 1);
536static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR,
537 show_fan_exp, set_fan_exp, 1);
538static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
539 show_pwm, set_pwm, 0);
540static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
541 show_pwm_enable, set_pwm_enable, 0);
542static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO|S_IWUSR,
543 show_pwm_mode, set_pwm_mode, 0);
544static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
545 show_pwm, set_pwm, 1);
546static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
547 show_pwm_enable, set_pwm_enable, 1);
548static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO|S_IWUSR,
549 show_pwm_mode, set_pwm_mode, 1);
550
551static struct attribute *f75375_attributes[] = {
552 &sensor_dev_attr_temp1_input.dev_attr.attr,
553 &sensor_dev_attr_temp1_max.dev_attr.attr,
554 &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
555 &sensor_dev_attr_temp2_input.dev_attr.attr,
556 &sensor_dev_attr_temp2_max.dev_attr.attr,
557 &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
558 &sensor_dev_attr_fan1_input.dev_attr.attr,
559 &sensor_dev_attr_fan1_full.dev_attr.attr,
560 &sensor_dev_attr_fan1_min.dev_attr.attr,
561 &sensor_dev_attr_fan1_exp.dev_attr.attr,
562 &sensor_dev_attr_fan2_input.dev_attr.attr,
563 &sensor_dev_attr_fan2_full.dev_attr.attr,
564 &sensor_dev_attr_fan2_min.dev_attr.attr,
565 &sensor_dev_attr_fan2_exp.dev_attr.attr,
566 &sensor_dev_attr_pwm1.dev_attr.attr,
567 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
568 &sensor_dev_attr_pwm1_mode.dev_attr.attr,
569 &sensor_dev_attr_pwm2.dev_attr.attr,
570 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
571 &sensor_dev_attr_pwm2_mode.dev_attr.attr,
572 &sensor_dev_attr_in0_input.dev_attr.attr,
573 &sensor_dev_attr_in0_max.dev_attr.attr,
574 &sensor_dev_attr_in0_min.dev_attr.attr,
575 &sensor_dev_attr_in1_input.dev_attr.attr,
576 &sensor_dev_attr_in1_max.dev_attr.attr,
577 &sensor_dev_attr_in1_min.dev_attr.attr,
578 &sensor_dev_attr_in2_input.dev_attr.attr,
579 &sensor_dev_attr_in2_max.dev_attr.attr,
580 &sensor_dev_attr_in2_min.dev_attr.attr,
581 &sensor_dev_attr_in3_input.dev_attr.attr,
582 &sensor_dev_attr_in3_max.dev_attr.attr,
583 &sensor_dev_attr_in3_min.dev_attr.attr,
584 NULL
585};
586
587static const struct attribute_group f75375_group = {
588 .attrs = f75375_attributes,
589};
590
591static int f75375_detach_client(struct i2c_client *client)
592{
84f1e442
RV		 593 int err;
594
620c142d 595 f75375_remove(client);
84f1e442
RV		 596 err = i2c_detach_client(client);
597 if (err) {
598 dev_err(&client->dev,
599 "Client deregistration failed, "
600 "client not detached.\n");
601 return err;
602 }
620c142d
RV		 603 kfree(client);
604 return 0;
605}
606
607static int f75375_probe(struct i2c_client *client)
608{
609 struct f75375_data *data = i2c_get_clientdata(client);
610 int err;
611
612 if (!i2c_check_functionality(client->adapter,
613 I2C_FUNC_SMBUS_BYTE_DATA))
614 return -EIO;
615 if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL)))
616 return -ENOMEM;
617
618 i2c_set_clientdata(client, data);
619 data->client = client;
620 mutex_init(&data->update_lock);
621
622 if (strcmp(client->name, "f75375") == 0)
623 data->kind = f75375;
624 else if (strcmp(client->name, "f75373") == 0)
625 data->kind = f75373;
626 else {
627 dev_err(&client->dev, "Unsupported device: %s\n", client->name);
628 return -ENODEV;
629 }
630
631 if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
632 goto exit_free;
633
634 data->hwmon_dev = hwmon_device_register(&client->dev);
635 if (IS_ERR(data->hwmon_dev)) {
636 err = PTR_ERR(data->hwmon_dev);
637 goto exit_remove;
638 }
639
640 return 0;
641
642exit_remove:
643 sysfs_remove_group(&client->dev.kobj, &f75375_group);
644exit_free:
645 kfree(data);
646 i2c_set_clientdata(client, NULL);
647 return err;
648}
649
650static int f75375_remove(struct i2c_client *client)
651{
652 struct f75375_data *data = i2c_get_clientdata(client);
653 hwmon_device_unregister(data->hwmon_dev);
654 sysfs_remove_group(&client->dev.kobj, &f75375_group);
84f1e442 655 kfree(data);
620c142d 656 i2c_set_clientdata(client, NULL);
84f1e442
RV		 657 return 0;
658}
659
660static int f75375_attach_adapter(struct i2c_adapter *adapter)
661{
662 if (!(adapter->class & I2C_CLASS_HWMON))
663 return 0;
664 return i2c_probe(adapter, &addr_data, f75375_detect);
665}
666
667/* This function is called by i2c_probe */
668static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
669{
670 struct i2c_client *client;
84f1e442
RV		 671 u8 version = 0;
672 int err = 0;
673 const char *name = "";
674
620c142d 675 if (!(client = kzalloc(sizeof(*client), GFP_KERNEL))) {
84f1e442
RV		 676 err = -ENOMEM;
677 goto exit;
678 }
84f1e442
RV		 679 client->addr = address;
680 client->adapter = adapter;
620c142d 681 client->driver = &f75375_legacy_driver;
84f1e442
RV		 682
683 if (kind < 0) {
684 u16 vendid = f75375_read16(client, F75375_REG_VENDOR);
685 u16 chipid = f75375_read16(client, F75375_CHIP_ID);
686 version = f75375_read8(client, F75375_REG_VERSION);
687 if (chipid == 0x0306 && vendid == 0x1934) {
688 kind = f75375;
689 } else if (chipid == 0x0204 && vendid == 0x1934) {
690 kind = f75373;
691 } else {
692 dev_err(&adapter->dev,
693 "failed,%02X,%02X,%02X\n",
694 chipid, version, vendid);
695 goto exit_free;
696 }
697 }
698
699 if (kind == f75375) {
700 name = "f75375";
701 } else if (kind == f75373) {
702 name = "f75373";
703 }
84f1e442
RV		 704 dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
705 strlcpy(client->name, name, I2C_NAME_SIZE);
620c142d 706
84f1e442
RV		 707 if ((err = i2c_attach_client(client)))
708 goto exit_free;
709
620c142d 710 if ((err = f75375_probe(client)) < 0)
84f1e442
RV		 711 goto exit_detach;
712
84f1e442
RV		 713 return 0;
714
84f1e442
RV		 715exit_detach:
716 i2c_detach_client(client);
717exit_free:
620c142d 718 kfree(client);
84f1e442
RV		 719exit:
720 return err;
721}
722
723static int __init sensors_f75375_init(void)
724{
620c142d
RV		 725 int status;
726 status = i2c_add_driver(&f75375_driver);
727 if (status)
728 return status;
729
730 status = i2c_add_driver(&f75375_legacy_driver);
731 if (status)
732 i2c_del_driver(&f75375_driver);
733
734 return status;
84f1e442
RV		 735}
736
737static void __exit sensors_f75375_exit(void)
738{
620c142d 739 i2c_del_driver(&f75375_legacy_driver);
84f1e442
RV		 740 i2c_del_driver(&f75375_driver);
741}
742
743MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>");
744MODULE_LICENSE("GPL");
745MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
746
747module_init(sensors_f75375_init);
748module_exit(sensors_f75375_exit);
Linux kernel - Deliverables
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