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84f1e442 RV |
1 | /* |
2 | * f75375s.c - driver for the Fintek F75375/SP and F75373 | |
3 | * hardware monitoring features | |
b26e0ed4 | 4 | * Copyright (C) 2006-2007 Riku Voipio |
84f1e442 RV |
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> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
84f1e442 RV |
39 | |
40 | /* Addresses to scan */ | |
25e9c86d | 41 | static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END }; |
84f1e442 | 42 | |
e5e9f44c | 43 | enum chips { f75373, f75375 }; |
84f1e442 RV |
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) | |
96f36408 | 82 | #define FAN_CTRL_MODE(nr) (4 + ((nr) * 2)) |
84f1e442 RV |
83 | |
84 | /* | |
85 | * Data structures and manipulation thereof | |
86 | */ | |
87 | ||
88 | struct f75375_data { | |
89 | unsigned short addr; | |
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 | ||
310ec792 | 116 | static int f75375_detect(struct i2c_client *client, |
935ada8c | 117 | struct i2c_board_info *info); |
d2653e92 JD |
118 | static int f75375_probe(struct i2c_client *client, |
119 | const struct i2c_device_id *id); | |
620c142d | 120 | static int f75375_remove(struct i2c_client *client); |
84f1e442 | 121 | |
3760f736 JD |
122 | static const struct i2c_device_id f75375_id[] = { |
123 | { "f75373", f75373 }, | |
124 | { "f75375", f75375 }, | |
125 | { } | |
126 | }; | |
127 | MODULE_DEVICE_TABLE(i2c, f75375_id); | |
128 | ||
620c142d | 129 | static struct i2c_driver f75375_driver = { |
935ada8c | 130 | .class = I2C_CLASS_HWMON, |
620c142d RV |
131 | .driver = { |
132 | .name = "f75375", | |
133 | }, | |
134 | .probe = f75375_probe, | |
135 | .remove = f75375_remove, | |
3760f736 | 136 | .id_table = f75375_id, |
935ada8c | 137 | .detect = f75375_detect, |
c3813d6a | 138 | .address_list = normal_i2c, |
620c142d RV |
139 | }; |
140 | ||
84f1e442 RV |
141 | static inline int f75375_read8(struct i2c_client *client, u8 reg) |
142 | { | |
143 | return i2c_smbus_read_byte_data(client, reg); | |
144 | } | |
145 | ||
146 | /* in most cases, should be called while holding update_lock */ | |
147 | static inline u16 f75375_read16(struct i2c_client *client, u8 reg) | |
148 | { | |
149 | return ((i2c_smbus_read_byte_data(client, reg) << 8) | |
150 | | i2c_smbus_read_byte_data(client, reg + 1)); | |
151 | } | |
152 | ||
153 | static inline void f75375_write8(struct i2c_client *client, u8 reg, | |
154 | u8 value) | |
155 | { | |
156 | i2c_smbus_write_byte_data(client, reg, value); | |
157 | } | |
158 | ||
159 | static inline void f75375_write16(struct i2c_client *client, u8 reg, | |
160 | u16 value) | |
161 | { | |
162 | int err = i2c_smbus_write_byte_data(client, reg, (value << 8)); | |
163 | if (err) | |
164 | return; | |
165 | i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF)); | |
166 | } | |
167 | ||
168 | static struct f75375_data *f75375_update_device(struct device *dev) | |
169 | { | |
170 | struct i2c_client *client = to_i2c_client(dev); | |
171 | struct f75375_data *data = i2c_get_clientdata(client); | |
172 | int nr; | |
173 | ||
174 | mutex_lock(&data->update_lock); | |
175 | ||
176 | /* Limit registers cache is refreshed after 60 seconds */ | |
177 | if (time_after(jiffies, data->last_limits + 60 * HZ) | |
178 | || !data->valid) { | |
179 | for (nr = 0; nr < 2; nr++) { | |
180 | data->temp_high[nr] = | |
181 | f75375_read8(client, F75375_REG_TEMP_HIGH(nr)); | |
182 | data->temp_max_hyst[nr] = | |
183 | f75375_read8(client, F75375_REG_TEMP_HYST(nr)); | |
184 | data->fan_full[nr] = | |
185 | f75375_read16(client, F75375_REG_FAN_FULL(nr)); | |
186 | data->fan_min[nr] = | |
187 | f75375_read16(client, F75375_REG_FAN_MIN(nr)); | |
188 | data->fan_exp[nr] = | |
189 | f75375_read16(client, F75375_REG_FAN_EXP(nr)); | |
190 | data->pwm[nr] = f75375_read8(client, | |
191 | F75375_REG_FAN_PWM_DUTY(nr)); | |
192 | ||
193 | } | |
194 | for (nr = 0; nr < 4; nr++) { | |
195 | data->in_max[nr] = | |
196 | f75375_read8(client, F75375_REG_VOLT_HIGH(nr)); | |
197 | data->in_min[nr] = | |
198 | f75375_read8(client, F75375_REG_VOLT_LOW(nr)); | |
199 | } | |
200 | data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER); | |
201 | data->last_limits = jiffies; | |
202 | } | |
203 | ||
204 | /* Measurement registers cache is refreshed after 2 second */ | |
205 | if (time_after(jiffies, data->last_updated + 2 * HZ) | |
206 | || !data->valid) { | |
207 | for (nr = 0; nr < 2; nr++) { | |
208 | data->temp[nr] = | |
209 | f75375_read8(client, F75375_REG_TEMP(nr)); | |
210 | data->fan[nr] = | |
211 | f75375_read16(client, F75375_REG_FAN(nr)); | |
212 | } | |
213 | for (nr = 0; nr < 4; nr++) | |
214 | data->in[nr] = | |
215 | f75375_read8(client, F75375_REG_VOLT(nr)); | |
216 | ||
217 | data->last_updated = jiffies; | |
218 | data->valid = 1; | |
219 | } | |
220 | ||
221 | mutex_unlock(&data->update_lock); | |
222 | return data; | |
223 | } | |
224 | ||
225 | static inline u16 rpm_from_reg(u16 reg) | |
226 | { | |
227 | if (reg == 0 || reg == 0xffff) | |
228 | return 0; | |
229 | return (1500000 / reg); | |
230 | } | |
231 | ||
232 | static inline u16 rpm_to_reg(int rpm) | |
233 | { | |
234 | if (rpm < 367 || rpm > 0xffff) | |
235 | return 0xffff; | |
236 | return (1500000 / rpm); | |
237 | } | |
238 | ||
239 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
240 | const char *buf, size_t count) | |
241 | { | |
242 | int nr = to_sensor_dev_attr(attr)->index; | |
243 | struct i2c_client *client = to_i2c_client(dev); | |
244 | struct f75375_data *data = i2c_get_clientdata(client); | |
245 | int val = simple_strtoul(buf, NULL, 10); | |
246 | ||
247 | mutex_lock(&data->update_lock); | |
248 | data->fan_min[nr] = rpm_to_reg(val); | |
249 | f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]); | |
250 | mutex_unlock(&data->update_lock); | |
251 | return count; | |
252 | } | |
253 | ||
254 | static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr, | |
255 | const char *buf, size_t count) | |
256 | { | |
257 | int nr = to_sensor_dev_attr(attr)->index; | |
258 | struct i2c_client *client = to_i2c_client(dev); | |
259 | struct f75375_data *data = i2c_get_clientdata(client); | |
260 | int val = simple_strtoul(buf, NULL, 10); | |
261 | ||
262 | mutex_lock(&data->update_lock); | |
263 | data->fan_exp[nr] = rpm_to_reg(val); | |
264 | f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]); | |
265 | mutex_unlock(&data->update_lock); | |
266 | return count; | |
267 | } | |
268 | ||
269 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
270 | const char *buf, size_t count) | |
271 | { | |
272 | int nr = to_sensor_dev_attr(attr)->index; | |
273 | struct i2c_client *client = to_i2c_client(dev); | |
274 | struct f75375_data *data = i2c_get_clientdata(client); | |
275 | int val = simple_strtoul(buf, NULL, 10); | |
276 | ||
277 | mutex_lock(&data->update_lock); | |
278 | data->pwm[nr] = SENSORS_LIMIT(val, 0, 255); | |
279 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]); | |
280 | mutex_unlock(&data->update_lock); | |
281 | return count; | |
282 | } | |
283 | ||
284 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
285 | *attr, char *buf) | |
286 | { | |
287 | int nr = to_sensor_dev_attr(attr)->index; | |
288 | struct f75375_data *data = f75375_update_device(dev); | |
289 | return sprintf(buf, "%d\n", data->pwm_enable[nr]); | |
290 | } | |
291 | ||
ff312d07 | 292 | static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val) |
84f1e442 | 293 | { |
84f1e442 | 294 | struct f75375_data *data = i2c_get_clientdata(client); |
84f1e442 RV |
295 | u8 fanmode; |
296 | ||
297 | if (val < 0 || val > 4) | |
298 | return -EINVAL; | |
299 | ||
84f1e442 | 300 | fanmode = f75375_read8(client, F75375_REG_FAN_TIMER); |
c3b327d6 | 301 | fanmode &= ~(3 << FAN_CTRL_MODE(nr)); |
84f1e442 RV |
302 | |
303 | switch (val) { | |
304 | case 0: /* Full speed */ | |
305 | fanmode |= (3 << FAN_CTRL_MODE(nr)); | |
306 | data->pwm[nr] = 255; | |
307 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), | |
308 | data->pwm[nr]); | |
309 | break; | |
310 | case 1: /* PWM */ | |
311 | fanmode |= (3 << FAN_CTRL_MODE(nr)); | |
312 | break; | |
313 | case 2: /* AUTOMATIC*/ | |
314 | fanmode |= (2 << FAN_CTRL_MODE(nr)); | |
315 | break; | |
316 | case 3: /* fan speed */ | |
317 | break; | |
318 | } | |
319 | f75375_write8(client, F75375_REG_FAN_TIMER, fanmode); | |
320 | data->pwm_enable[nr] = val; | |
ff312d07 RV |
321 | return 0; |
322 | } | |
323 | ||
324 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, | |
325 | const char *buf, size_t count) | |
326 | { | |
327 | int nr = to_sensor_dev_attr(attr)->index; | |
328 | struct i2c_client *client = to_i2c_client(dev); | |
329 | struct f75375_data *data = i2c_get_clientdata(client); | |
330 | int val = simple_strtoul(buf, NULL, 10); | |
331 | int err = 0; | |
332 | ||
333 | mutex_lock(&data->update_lock); | |
334 | err = set_pwm_enable_direct(client, nr, val); | |
84f1e442 | 335 | mutex_unlock(&data->update_lock); |
ff312d07 | 336 | return err ? err : count; |
84f1e442 RV |
337 | } |
338 | ||
339 | static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr, | |
340 | const char *buf, size_t count) | |
341 | { | |
342 | int nr = to_sensor_dev_attr(attr)->index; | |
343 | struct i2c_client *client = to_i2c_client(dev); | |
344 | struct f75375_data *data = i2c_get_clientdata(client); | |
345 | int val = simple_strtoul(buf, NULL, 10); | |
346 | u8 conf = 0; | |
347 | ||
76e83bef | 348 | if (!(val == 0 || val == 1)) |
84f1e442 RV |
349 | return -EINVAL; |
350 | ||
351 | mutex_lock(&data->update_lock); | |
352 | conf = f75375_read8(client, F75375_REG_CONFIG1); | |
c3b327d6 | 353 | conf &= ~(1 << FAN_CTRL_LINEAR(nr)); |
84f1e442 RV |
354 | |
355 | if (val == 0) | |
356 | conf |= (1 << FAN_CTRL_LINEAR(nr)) ; | |
357 | ||
358 | f75375_write8(client, F75375_REG_CONFIG1, conf); | |
359 | data->pwm_mode[nr] = val; | |
360 | mutex_unlock(&data->update_lock); | |
361 | return count; | |
362 | } | |
363 | ||
364 | static ssize_t show_pwm(struct device *dev, struct device_attribute | |
365 | *attr, char *buf) | |
366 | { | |
367 | int nr = to_sensor_dev_attr(attr)->index; | |
368 | struct f75375_data *data = f75375_update_device(dev); | |
369 | return sprintf(buf, "%d\n", data->pwm[nr]); | |
370 | } | |
371 | ||
372 | static ssize_t show_pwm_mode(struct device *dev, struct device_attribute | |
373 | *attr, char *buf) | |
374 | { | |
375 | int nr = to_sensor_dev_attr(attr)->index; | |
376 | struct f75375_data *data = f75375_update_device(dev); | |
377 | return sprintf(buf, "%d\n", data->pwm_mode[nr]); | |
378 | } | |
379 | ||
380 | #define VOLT_FROM_REG(val) ((val) * 8) | |
381 | #define VOLT_TO_REG(val) ((val) / 8) | |
382 | ||
383 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
384 | char *buf) | |
385 | { | |
386 | int nr = to_sensor_dev_attr(attr)->index; | |
387 | struct f75375_data *data = f75375_update_device(dev); | |
388 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr])); | |
389 | } | |
390 | ||
391 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
392 | char *buf) | |
393 | { | |
394 | int nr = to_sensor_dev_attr(attr)->index; | |
395 | struct f75375_data *data = f75375_update_device(dev); | |
396 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr])); | |
397 | } | |
398 | ||
399 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, | |
400 | char *buf) | |
401 | { | |
402 | int nr = to_sensor_dev_attr(attr)->index; | |
403 | struct f75375_data *data = f75375_update_device(dev); | |
404 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr])); | |
405 | } | |
406 | ||
407 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
408 | const char *buf, size_t count) | |
409 | { | |
410 | int nr = to_sensor_dev_attr(attr)->index; | |
411 | struct i2c_client *client = to_i2c_client(dev); | |
412 | struct f75375_data *data = i2c_get_clientdata(client); | |
413 | int val = simple_strtoul(buf, NULL, 10); | |
414 | val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff); | |
415 | mutex_lock(&data->update_lock); | |
416 | data->in_max[nr] = val; | |
417 | f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]); | |
418 | mutex_unlock(&data->update_lock); | |
419 | return count; | |
420 | } | |
421 | ||
422 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
423 | const char *buf, size_t count) | |
424 | { | |
425 | int nr = to_sensor_dev_attr(attr)->index; | |
426 | struct i2c_client *client = to_i2c_client(dev); | |
427 | struct f75375_data *data = i2c_get_clientdata(client); | |
428 | int val = simple_strtoul(buf, NULL, 10); | |
429 | val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff); | |
430 | mutex_lock(&data->update_lock); | |
431 | data->in_min[nr] = val; | |
432 | f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]); | |
433 | mutex_unlock(&data->update_lock); | |
434 | return count; | |
435 | } | |
436 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
437 | #define TEMP_TO_REG(val) ((val) / 1000) | |
438 | ||
439 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
440 | char *buf) | |
441 | { | |
442 | int nr = to_sensor_dev_attr(attr)->index; | |
443 | struct f75375_data *data = f75375_update_device(dev); | |
444 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); | |
445 | } | |
446 | ||
447 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
448 | char *buf) | |
449 | { | |
450 | int nr = to_sensor_dev_attr(attr)->index; | |
451 | struct f75375_data *data = f75375_update_device(dev); | |
452 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
453 | } | |
454 | ||
455 | static ssize_t show_temp_max_hyst(struct device *dev, | |
456 | struct device_attribute *attr, char *buf) | |
457 | { | |
458 | int nr = to_sensor_dev_attr(attr)->index; | |
459 | struct f75375_data *data = f75375_update_device(dev); | |
460 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr])); | |
461 | } | |
462 | ||
463 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
464 | const char *buf, size_t count) | |
465 | { | |
466 | int nr = to_sensor_dev_attr(attr)->index; | |
467 | struct i2c_client *client = to_i2c_client(dev); | |
468 | struct f75375_data *data = i2c_get_clientdata(client); | |
469 | int val = simple_strtol(buf, NULL, 10); | |
470 | val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127); | |
471 | mutex_lock(&data->update_lock); | |
472 | data->temp_high[nr] = val; | |
473 | f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]); | |
474 | mutex_unlock(&data->update_lock); | |
475 | return count; | |
476 | } | |
477 | ||
478 | static ssize_t set_temp_max_hyst(struct device *dev, | |
479 | struct device_attribute *attr, const char *buf, size_t count) | |
480 | { | |
481 | int nr = to_sensor_dev_attr(attr)->index; | |
482 | struct i2c_client *client = to_i2c_client(dev); | |
483 | struct f75375_data *data = i2c_get_clientdata(client); | |
484 | int val = simple_strtol(buf, NULL, 10); | |
485 | val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127); | |
486 | mutex_lock(&data->update_lock); | |
487 | data->temp_max_hyst[nr] = val; | |
488 | f75375_write8(client, F75375_REG_TEMP_HYST(nr), | |
489 | data->temp_max_hyst[nr]); | |
490 | mutex_unlock(&data->update_lock); | |
491 | return count; | |
492 | } | |
493 | ||
494 | #define show_fan(thing) \ | |
495 | static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \ | |
496 | char *buf)\ | |
497 | {\ | |
498 | int nr = to_sensor_dev_attr(attr)->index;\ | |
499 | struct f75375_data *data = f75375_update_device(dev); \ | |
500 | return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \ | |
501 | } | |
502 | ||
503 | show_fan(fan); | |
504 | show_fan(fan_min); | |
505 | show_fan(fan_full); | |
506 | show_fan(fan_exp); | |
507 | ||
508 | static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); | |
509 | static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR, | |
510 | show_in_max, set_in_max, 0); | |
511 | static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR, | |
512 | show_in_min, set_in_min, 0); | |
513 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); | |
514 | static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR, | |
515 | show_in_max, set_in_max, 1); | |
516 | static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR, | |
517 | show_in_min, set_in_min, 1); | |
518 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); | |
519 | static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR, | |
520 | show_in_max, set_in_max, 2); | |
521 | static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR, | |
522 | show_in_min, set_in_min, 2); | |
523 | static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); | |
524 | static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR, | |
525 | show_in_max, set_in_max, 3); | |
526 | static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR, | |
527 | show_in_min, set_in_min, 3); | |
528 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
529 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, | |
530 | show_temp_max_hyst, set_temp_max_hyst, 0); | |
531 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR, | |
532 | show_temp_max, set_temp_max, 0); | |
533 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
534 | static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, | |
535 | show_temp_max_hyst, set_temp_max_hyst, 1); | |
536 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR, | |
537 | show_temp_max, set_temp_max, 1); | |
538 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
539 | static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0); | |
540 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR, | |
541 | show_fan_min, set_fan_min, 0); | |
542 | static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR, | |
543 | show_fan_exp, set_fan_exp, 0); | |
544 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
545 | static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1); | |
546 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR, | |
547 | show_fan_min, set_fan_min, 1); | |
548 | static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR, | |
549 | show_fan_exp, set_fan_exp, 1); | |
550 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, | |
551 | show_pwm, set_pwm, 0); | |
552 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, | |
553 | show_pwm_enable, set_pwm_enable, 0); | |
76e83bef | 554 | static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, |
84f1e442 RV |
555 | show_pwm_mode, set_pwm_mode, 0); |
556 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, | |
557 | show_pwm, set_pwm, 1); | |
558 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, | |
559 | show_pwm_enable, set_pwm_enable, 1); | |
76e83bef | 560 | static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, |
84f1e442 RV |
561 | show_pwm_mode, set_pwm_mode, 1); |
562 | ||
563 | static struct attribute *f75375_attributes[] = { | |
564 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
565 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
566 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
567 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
568 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
569 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
570 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
571 | &sensor_dev_attr_fan1_full.dev_attr.attr, | |
572 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
573 | &sensor_dev_attr_fan1_exp.dev_attr.attr, | |
574 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
575 | &sensor_dev_attr_fan2_full.dev_attr.attr, | |
576 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
577 | &sensor_dev_attr_fan2_exp.dev_attr.attr, | |
578 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
579 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
580 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, | |
581 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
582 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
583 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, | |
584 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
585 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
586 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
587 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
588 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
589 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
590 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
591 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
592 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
593 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
594 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
595 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
596 | NULL | |
597 | }; | |
598 | ||
599 | static const struct attribute_group f75375_group = { | |
600 | .attrs = f75375_attributes, | |
601 | }; | |
602 | ||
ff312d07 RV |
603 | static void f75375_init(struct i2c_client *client, struct f75375_data *data, |
604 | struct f75375s_platform_data *f75375s_pdata) | |
605 | { | |
606 | int nr; | |
607 | set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]); | |
608 | set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]); | |
609 | for (nr = 0; nr < 2; nr++) { | |
610 | data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255); | |
611 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), | |
612 | data->pwm[nr]); | |
613 | } | |
614 | ||
615 | } | |
616 | ||
d2653e92 JD |
617 | static int f75375_probe(struct i2c_client *client, |
618 | const struct i2c_device_id *id) | |
620c142d | 619 | { |
51b3e270 | 620 | struct f75375_data *data; |
ff312d07 | 621 | struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data; |
620c142d RV |
622 | int err; |
623 | ||
624 | if (!i2c_check_functionality(client->adapter, | |
625 | I2C_FUNC_SMBUS_BYTE_DATA)) | |
626 | return -EIO; | |
627 | if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL))) | |
628 | return -ENOMEM; | |
629 | ||
630 | i2c_set_clientdata(client, data); | |
620c142d | 631 | mutex_init(&data->update_lock); |
3760f736 | 632 | data->kind = id->driver_data; |
620c142d RV |
633 | |
634 | if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group))) | |
635 | goto exit_free; | |
636 | ||
76e83bef RV |
637 | if (data->kind == f75375) { |
638 | err = sysfs_chmod_file(&client->dev.kobj, | |
639 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, | |
640 | S_IRUGO | S_IWUSR); | |
641 | if (err) | |
642 | goto exit_remove; | |
643 | err = sysfs_chmod_file(&client->dev.kobj, | |
644 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, | |
645 | S_IRUGO | S_IWUSR); | |
646 | if (err) | |
647 | goto exit_remove; | |
648 | } | |
649 | ||
620c142d RV |
650 | data->hwmon_dev = hwmon_device_register(&client->dev); |
651 | if (IS_ERR(data->hwmon_dev)) { | |
652 | err = PTR_ERR(data->hwmon_dev); | |
653 | goto exit_remove; | |
654 | } | |
655 | ||
ff312d07 RV |
656 | if (f75375s_pdata != NULL) |
657 | f75375_init(client, data, f75375s_pdata); | |
658 | ||
620c142d RV |
659 | return 0; |
660 | ||
661 | exit_remove: | |
662 | sysfs_remove_group(&client->dev.kobj, &f75375_group); | |
663 | exit_free: | |
664 | kfree(data); | |
620c142d RV |
665 | return err; |
666 | } | |
667 | ||
668 | static int f75375_remove(struct i2c_client *client) | |
669 | { | |
670 | struct f75375_data *data = i2c_get_clientdata(client); | |
671 | hwmon_device_unregister(data->hwmon_dev); | |
672 | sysfs_remove_group(&client->dev.kobj, &f75375_group); | |
84f1e442 RV |
673 | kfree(data); |
674 | return 0; | |
675 | } | |
676 | ||
935ada8c | 677 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 678 | static int f75375_detect(struct i2c_client *client, |
935ada8c | 679 | struct i2c_board_info *info) |
84f1e442 | 680 | { |
935ada8c | 681 | struct i2c_adapter *adapter = client->adapter; |
52df6440 JD |
682 | u16 vendid, chipid; |
683 | u8 version; | |
684 | const char *name; | |
84f1e442 | 685 | |
52df6440 JD |
686 | vendid = f75375_read16(client, F75375_REG_VENDOR); |
687 | chipid = f75375_read16(client, F75375_CHIP_ID); | |
688 | if (chipid == 0x0306 && vendid == 0x1934) | |
84f1e442 | 689 | name = "f75375"; |
52df6440 | 690 | else if (chipid == 0x0204 && vendid == 0x1934) |
84f1e442 | 691 | name = "f75373"; |
52df6440 JD |
692 | else |
693 | return -ENODEV; | |
694 | ||
695 | version = f75375_read8(client, F75375_REG_VERSION); | |
84f1e442 | 696 | dev_info(&adapter->dev, "found %s version: %02X\n", name, version); |
935ada8c | 697 | strlcpy(info->type, name, I2C_NAME_SIZE); |
84f1e442 | 698 | |
84f1e442 | 699 | return 0; |
84f1e442 RV |
700 | } |
701 | ||
702 | static int __init sensors_f75375_init(void) | |
703 | { | |
935ada8c | 704 | return i2c_add_driver(&f75375_driver); |
84f1e442 RV |
705 | } |
706 | ||
707 | static void __exit sensors_f75375_exit(void) | |
708 | { | |
709 | i2c_del_driver(&f75375_driver); | |
710 | } | |
711 | ||
b26e0ed4 | 712 | MODULE_AUTHOR("Riku Voipio"); |
84f1e442 RV |
713 | MODULE_LICENSE("GPL"); |
714 | MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver"); | |
715 | ||
716 | module_init(sensors_f75375_init); | |
717 | module_exit(sensors_f75375_exit); |