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Commit | Line | Data |
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84f1e442 | 1 | /* |
f58c44e6 BG |
2 | * f75375s.c - driver for the Fintek F75375/SP, F75373 and |
3 | * F75387SG/RG hardware monitoring features | |
b26e0ed4 | 4 | * Copyright (C) 2006-2007 Riku Voipio |
84f1e442 RV |
5 | * |
6 | * Datasheets available at: | |
7 | * | |
8 | * f75375: | |
4fd826ef | 9 | * http://www.fintek.com.tw/files/productfiles/F75375_V026P.pdf |
84f1e442 RV |
10 | * |
11 | * f75373: | |
631dd1a8 | 12 | * http://www.fintek.com.tw/files/productfiles/F75373_V025P.pdf |
84f1e442 | 13 | * |
f58c44e6 BG |
14 | * f75387: |
15 | * http://www.fintek.com.tw/files/productfiles/F75387_V027P.pdf | |
16 | * | |
84f1e442 RV |
17 | * This program is free software; you can redistribute it and/or modify |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
30 | * | |
31 | */ | |
32 | ||
33 | #include <linux/module.h> | |
34 | #include <linux/jiffies.h> | |
35 | #include <linux/hwmon.h> | |
36 | #include <linux/hwmon-sysfs.h> | |
37 | #include <linux/i2c.h> | |
38 | #include <linux/err.h> | |
39 | #include <linux/mutex.h> | |
ff312d07 | 40 | #include <linux/f75375s.h> |
5a0e3ad6 | 41 | #include <linux/slab.h> |
84f1e442 RV |
42 | |
43 | /* Addresses to scan */ | |
25e9c86d | 44 | static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END }; |
84f1e442 | 45 | |
f58c44e6 | 46 | enum chips { f75373, f75375, f75387 }; |
84f1e442 RV |
47 | |
48 | /* Fintek F75375 registers */ | |
49 | #define F75375_REG_CONFIG0 0x0 | |
50 | #define F75375_REG_CONFIG1 0x1 | |
51 | #define F75375_REG_CONFIG2 0x2 | |
52 | #define F75375_REG_CONFIG3 0x3 | |
53 | #define F75375_REG_ADDR 0x4 | |
54 | #define F75375_REG_INTR 0x31 | |
55 | #define F75375_CHIP_ID 0x5A | |
56 | #define F75375_REG_VERSION 0x5C | |
57 | #define F75375_REG_VENDOR 0x5D | |
58 | #define F75375_REG_FAN_TIMER 0x60 | |
59 | ||
60 | #define F75375_REG_VOLT(nr) (0x10 + (nr)) | |
61 | #define F75375_REG_VOLT_HIGH(nr) (0x20 + (nr) * 2) | |
62 | #define F75375_REG_VOLT_LOW(nr) (0x21 + (nr) * 2) | |
63 | ||
64 | #define F75375_REG_TEMP(nr) (0x14 + (nr)) | |
f58c44e6 | 65 | #define F75387_REG_TEMP11_LSB(nr) (0x1a + (nr)) |
84f1e442 RV |
66 | #define F75375_REG_TEMP_HIGH(nr) (0x28 + (nr) * 2) |
67 | #define F75375_REG_TEMP_HYST(nr) (0x29 + (nr) * 2) | |
68 | ||
69 | #define F75375_REG_FAN(nr) (0x16 + (nr) * 2) | |
70 | #define F75375_REG_FAN_MIN(nr) (0x2C + (nr) * 2) | |
71 | #define F75375_REG_FAN_FULL(nr) (0x70 + (nr) * 0x10) | |
72 | #define F75375_REG_FAN_PWM_DUTY(nr) (0x76 + (nr) * 0x10) | |
73 | #define F75375_REG_FAN_PWM_CLOCK(nr) (0x7D + (nr) * 0x10) | |
74 | ||
75 | #define F75375_REG_FAN_EXP(nr) (0x74 + (nr) * 0x10) | |
76 | #define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step)) | |
77 | #define F75375_REG_FAN_B_SPEED(nr, step) \ | |
78 | ((0xA5 + (nr) * 0x10) + (step) * 2) | |
79 | ||
80 | #define F75375_REG_PWM1_RAISE_DUTY 0x69 | |
81 | #define F75375_REG_PWM2_RAISE_DUTY 0x6A | |
82 | #define F75375_REG_PWM1_DROP_DUTY 0x6B | |
83 | #define F75375_REG_PWM2_DROP_DUTY 0x6C | |
84 | ||
f58c44e6 BG |
85 | #define F75375_FAN_CTRL_LINEAR(nr) (4 + nr) |
86 | #define F75387_FAN_CTRL_LINEAR(nr) (1 + ((nr) * 4)) | |
96f36408 | 87 | #define FAN_CTRL_MODE(nr) (4 + ((nr) * 2)) |
f58c44e6 BG |
88 | #define F75387_FAN_DUTY_MODE(nr) (2 + ((nr) * 4)) |
89 | #define F75387_FAN_MANU_MODE(nr) ((nr) * 4) | |
84f1e442 RV |
90 | |
91 | /* | |
92 | * Data structures and manipulation thereof | |
93 | */ | |
94 | ||
95 | struct f75375_data { | |
96 | unsigned short addr; | |
1beeffe4 | 97 | struct device *hwmon_dev; |
84f1e442 RV |
98 | |
99 | const char *name; | |
100 | int kind; | |
101 | struct mutex update_lock; /* protect register access */ | |
102 | char valid; | |
103 | unsigned long last_updated; /* In jiffies */ | |
104 | unsigned long last_limits; /* In jiffies */ | |
105 | ||
106 | /* Register values */ | |
107 | u8 in[4]; | |
108 | u8 in_max[4]; | |
109 | u8 in_min[4]; | |
110 | u16 fan[2]; | |
111 | u16 fan_min[2]; | |
740f6be3 GR |
112 | u16 fan_max[2]; |
113 | u16 fan_target[2]; | |
84f1e442 RV |
114 | u8 fan_timer; |
115 | u8 pwm[2]; | |
116 | u8 pwm_mode[2]; | |
117 | u8 pwm_enable[2]; | |
f58c44e6 BG |
118 | /* |
119 | * f75387: For remote temperature reading, it uses signed 11-bit | |
120 | * values with LSB = 0.125 degree Celsius, left-justified in 16-bit | |
121 | * registers. For original 8-bit temp readings, the LSB just is 0. | |
122 | */ | |
123 | s16 temp11[2]; | |
84f1e442 RV |
124 | s8 temp_high[2]; |
125 | s8 temp_max_hyst[2]; | |
126 | }; | |
127 | ||
310ec792 | 128 | static int f75375_detect(struct i2c_client *client, |
935ada8c | 129 | struct i2c_board_info *info); |
d2653e92 JD |
130 | static int f75375_probe(struct i2c_client *client, |
131 | const struct i2c_device_id *id); | |
620c142d | 132 | static int f75375_remove(struct i2c_client *client); |
84f1e442 | 133 | |
3760f736 JD |
134 | static const struct i2c_device_id f75375_id[] = { |
135 | { "f75373", f75373 }, | |
136 | { "f75375", f75375 }, | |
f58c44e6 | 137 | { "f75387", f75387 }, |
3760f736 JD |
138 | { } |
139 | }; | |
140 | MODULE_DEVICE_TABLE(i2c, f75375_id); | |
141 | ||
620c142d | 142 | static struct i2c_driver f75375_driver = { |
935ada8c | 143 | .class = I2C_CLASS_HWMON, |
620c142d RV |
144 | .driver = { |
145 | .name = "f75375", | |
146 | }, | |
147 | .probe = f75375_probe, | |
148 | .remove = f75375_remove, | |
3760f736 | 149 | .id_table = f75375_id, |
935ada8c | 150 | .detect = f75375_detect, |
c3813d6a | 151 | .address_list = normal_i2c, |
620c142d RV |
152 | }; |
153 | ||
84f1e442 RV |
154 | static inline int f75375_read8(struct i2c_client *client, u8 reg) |
155 | { | |
156 | return i2c_smbus_read_byte_data(client, reg); | |
157 | } | |
158 | ||
159 | /* in most cases, should be called while holding update_lock */ | |
160 | static inline u16 f75375_read16(struct i2c_client *client, u8 reg) | |
161 | { | |
4fd826ef GR |
162 | return (i2c_smbus_read_byte_data(client, reg) << 8) |
163 | | i2c_smbus_read_byte_data(client, reg + 1); | |
84f1e442 RV |
164 | } |
165 | ||
166 | static inline void f75375_write8(struct i2c_client *client, u8 reg, | |
167 | u8 value) | |
168 | { | |
169 | i2c_smbus_write_byte_data(client, reg, value); | |
170 | } | |
171 | ||
172 | static inline void f75375_write16(struct i2c_client *client, u8 reg, | |
173 | u16 value) | |
174 | { | |
eb2f255b | 175 | int err = i2c_smbus_write_byte_data(client, reg, (value >> 8)); |
84f1e442 RV |
176 | if (err) |
177 | return; | |
178 | i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF)); | |
179 | } | |
180 | ||
331255d3 NS |
181 | static void f75375_write_pwm(struct i2c_client *client, int nr) |
182 | { | |
183 | struct f75375_data *data = i2c_get_clientdata(client); | |
184 | if (data->kind == f75387) | |
185 | f75375_write16(client, F75375_REG_FAN_EXP(nr), data->pwm[nr]); | |
186 | else | |
187 | f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), | |
188 | data->pwm[nr]); | |
189 | } | |
190 | ||
84f1e442 RV |
191 | static struct f75375_data *f75375_update_device(struct device *dev) |
192 | { | |
193 | struct i2c_client *client = to_i2c_client(dev); | |
194 | struct f75375_data *data = i2c_get_clientdata(client); | |
195 | int nr; | |
196 | ||
197 | mutex_lock(&data->update_lock); | |
198 | ||
199 | /* Limit registers cache is refreshed after 60 seconds */ | |
200 | if (time_after(jiffies, data->last_limits + 60 * HZ) | |
201 | || !data->valid) { | |
202 | for (nr = 0; nr < 2; nr++) { | |
203 | data->temp_high[nr] = | |
204 | f75375_read8(client, F75375_REG_TEMP_HIGH(nr)); | |
205 | data->temp_max_hyst[nr] = | |
206 | f75375_read8(client, F75375_REG_TEMP_HYST(nr)); | |
740f6be3 | 207 | data->fan_max[nr] = |
84f1e442 RV |
208 | f75375_read16(client, F75375_REG_FAN_FULL(nr)); |
209 | data->fan_min[nr] = | |
210 | f75375_read16(client, F75375_REG_FAN_MIN(nr)); | |
740f6be3 | 211 | data->fan_target[nr] = |
84f1e442 | 212 | f75375_read16(client, F75375_REG_FAN_EXP(nr)); |
84f1e442 RV |
213 | } |
214 | for (nr = 0; nr < 4; nr++) { | |
215 | data->in_max[nr] = | |
216 | f75375_read8(client, F75375_REG_VOLT_HIGH(nr)); | |
217 | data->in_min[nr] = | |
218 | f75375_read8(client, F75375_REG_VOLT_LOW(nr)); | |
219 | } | |
220 | data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER); | |
221 | data->last_limits = jiffies; | |
222 | } | |
223 | ||
224 | /* Measurement registers cache is refreshed after 2 second */ | |
225 | if (time_after(jiffies, data->last_updated + 2 * HZ) | |
226 | || !data->valid) { | |
227 | for (nr = 0; nr < 2; nr++) { | |
a1c1baf0 NS |
228 | data->pwm[nr] = f75375_read8(client, |
229 | F75375_REG_FAN_PWM_DUTY(nr)); | |
f58c44e6 BG |
230 | /* assign MSB, therefore shift it by 8 bits */ |
231 | data->temp11[nr] = | |
232 | f75375_read8(client, F75375_REG_TEMP(nr)) << 8; | |
233 | if (data->kind == f75387) | |
234 | /* merge F75387's temperature LSB (11-bit) */ | |
235 | data->temp11[nr] |= | |
236 | f75375_read8(client, | |
237 | F75387_REG_TEMP11_LSB(nr)); | |
84f1e442 RV |
238 | data->fan[nr] = |
239 | f75375_read16(client, F75375_REG_FAN(nr)); | |
240 | } | |
241 | for (nr = 0; nr < 4; nr++) | |
242 | data->in[nr] = | |
243 | f75375_read8(client, F75375_REG_VOLT(nr)); | |
244 | ||
245 | data->last_updated = jiffies; | |
246 | data->valid = 1; | |
247 | } | |
248 | ||
249 | mutex_unlock(&data->update_lock); | |
250 | return data; | |
251 | } | |
252 | ||
253 | static inline u16 rpm_from_reg(u16 reg) | |
254 | { | |
255 | if (reg == 0 || reg == 0xffff) | |
256 | return 0; | |
4fd826ef | 257 | return 1500000 / reg; |
84f1e442 RV |
258 | } |
259 | ||
260 | static inline u16 rpm_to_reg(int rpm) | |
261 | { | |
262 | if (rpm < 367 || rpm > 0xffff) | |
263 | return 0xffff; | |
4fd826ef | 264 | return 1500000 / rpm; |
84f1e442 RV |
265 | } |
266 | ||
267 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, | |
268 | const char *buf, size_t count) | |
269 | { | |
270 | int nr = to_sensor_dev_attr(attr)->index; | |
271 | struct i2c_client *client = to_i2c_client(dev); | |
272 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
273 | unsigned long val; |
274 | int err; | |
275 | ||
276 | err = kstrtoul(buf, 10, &val); | |
277 | if (err < 0) | |
278 | return err; | |
84f1e442 RV |
279 | |
280 | mutex_lock(&data->update_lock); | |
281 | data->fan_min[nr] = rpm_to_reg(val); | |
282 | f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]); | |
283 | mutex_unlock(&data->update_lock); | |
284 | return count; | |
285 | } | |
286 | ||
740f6be3 | 287 | static ssize_t set_fan_target(struct device *dev, struct device_attribute *attr, |
84f1e442 RV |
288 | const char *buf, size_t count) |
289 | { | |
290 | int nr = to_sensor_dev_attr(attr)->index; | |
291 | struct i2c_client *client = to_i2c_client(dev); | |
292 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
293 | unsigned long val; |
294 | int err; | |
295 | ||
296 | err = kstrtoul(buf, 10, &val); | |
297 | if (err < 0) | |
298 | return err; | |
84f1e442 RV |
299 | |
300 | mutex_lock(&data->update_lock); | |
740f6be3 GR |
301 | data->fan_target[nr] = rpm_to_reg(val); |
302 | f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_target[nr]); | |
84f1e442 RV |
303 | mutex_unlock(&data->update_lock); |
304 | return count; | |
305 | } | |
306 | ||
307 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
308 | const char *buf, size_t count) | |
309 | { | |
310 | int nr = to_sensor_dev_attr(attr)->index; | |
311 | struct i2c_client *client = to_i2c_client(dev); | |
312 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
313 | unsigned long val; |
314 | int err; | |
315 | ||
316 | err = kstrtoul(buf, 10, &val); | |
317 | if (err < 0) | |
318 | return err; | |
84f1e442 RV |
319 | |
320 | mutex_lock(&data->update_lock); | |
321 | data->pwm[nr] = SENSORS_LIMIT(val, 0, 255); | |
331255d3 | 322 | f75375_write_pwm(client, nr); |
84f1e442 RV |
323 | mutex_unlock(&data->update_lock); |
324 | return count; | |
325 | } | |
326 | ||
327 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
328 | *attr, char *buf) | |
329 | { | |
330 | int nr = to_sensor_dev_attr(attr)->index; | |
331 | struct f75375_data *data = f75375_update_device(dev); | |
332 | return sprintf(buf, "%d\n", data->pwm_enable[nr]); | |
333 | } | |
334 | ||
ff312d07 | 335 | static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val) |
84f1e442 | 336 | { |
84f1e442 | 337 | struct f75375_data *data = i2c_get_clientdata(client); |
84f1e442 RV |
338 | u8 fanmode; |
339 | ||
3310600a | 340 | if (val < 0 || val > 3) |
84f1e442 RV |
341 | return -EINVAL; |
342 | ||
84f1e442 | 343 | fanmode = f75375_read8(client, F75375_REG_FAN_TIMER); |
f58c44e6 BG |
344 | if (data->kind == f75387) { |
345 | /* clear each fanX_mode bit before setting them properly */ | |
346 | fanmode &= ~(1 << F75387_FAN_DUTY_MODE(nr)); | |
347 | fanmode &= ~(1 << F75387_FAN_MANU_MODE(nr)); | |
348 | switch (val) { | |
349 | case 0: /* full speed */ | |
350 | fanmode |= (1 << F75387_FAN_MANU_MODE(nr)); | |
351 | fanmode |= (1 << F75387_FAN_DUTY_MODE(nr)); | |
352 | data->pwm[nr] = 255; | |
f58c44e6 BG |
353 | break; |
354 | case 1: /* PWM */ | |
355 | fanmode |= (1 << F75387_FAN_MANU_MODE(nr)); | |
356 | fanmode |= (1 << F75387_FAN_DUTY_MODE(nr)); | |
357 | break; | |
358 | case 2: /* AUTOMATIC*/ | |
359 | fanmode |= (1 << F75387_FAN_DUTY_MODE(nr)); | |
360 | break; | |
361 | case 3: /* fan speed */ | |
362 | fanmode |= (1 << F75387_FAN_MANU_MODE(nr)); | |
363 | break; | |
364 | } | |
365 | } else { | |
366 | /* clear each fanX_mode bit before setting them properly */ | |
367 | fanmode &= ~(3 << FAN_CTRL_MODE(nr)); | |
368 | switch (val) { | |
369 | case 0: /* full speed */ | |
370 | fanmode |= (3 << FAN_CTRL_MODE(nr)); | |
371 | data->pwm[nr] = 255; | |
f58c44e6 BG |
372 | break; |
373 | case 1: /* PWM */ | |
374 | fanmode |= (3 << FAN_CTRL_MODE(nr)); | |
375 | break; | |
376 | case 2: /* AUTOMATIC*/ | |
09e87e5c | 377 | fanmode |= (1 << FAN_CTRL_MODE(nr)); |
f58c44e6 BG |
378 | break; |
379 | case 3: /* fan speed */ | |
380 | break; | |
381 | } | |
84f1e442 | 382 | } |
f58c44e6 | 383 | |
84f1e442 RV |
384 | f75375_write8(client, F75375_REG_FAN_TIMER, fanmode); |
385 | data->pwm_enable[nr] = val; | |
c1c1a3d0 | 386 | if (val == 0) |
331255d3 | 387 | f75375_write_pwm(client, nr); |
ff312d07 RV |
388 | return 0; |
389 | } | |
390 | ||
391 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr, | |
392 | const char *buf, size_t count) | |
393 | { | |
394 | int nr = to_sensor_dev_attr(attr)->index; | |
395 | struct i2c_client *client = to_i2c_client(dev); | |
396 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
397 | unsigned long val; |
398 | int err; | |
399 | ||
400 | err = kstrtoul(buf, 10, &val); | |
401 | if (err < 0) | |
402 | return err; | |
ff312d07 RV |
403 | |
404 | mutex_lock(&data->update_lock); | |
405 | err = set_pwm_enable_direct(client, nr, val); | |
84f1e442 | 406 | mutex_unlock(&data->update_lock); |
ff312d07 | 407 | return err ? err : count; |
84f1e442 RV |
408 | } |
409 | ||
410 | static ssize_t set_pwm_mode(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); | |
4fd826ef GR |
416 | unsigned long val; |
417 | int err; | |
418 | u8 conf; | |
f58c44e6 | 419 | char reg, ctrl; |
4fd826ef GR |
420 | |
421 | err = kstrtoul(buf, 10, &val); | |
422 | if (err < 0) | |
423 | return err; | |
84f1e442 | 424 | |
76e83bef | 425 | if (!(val == 0 || val == 1)) |
84f1e442 RV |
426 | return -EINVAL; |
427 | ||
5cd3222a GR |
428 | /* F75373 does not support DC (linear voltage) fan control mode */ |
429 | if (data->kind == f75373 && val == 0) | |
430 | return -EINVAL; | |
431 | ||
f58c44e6 BG |
432 | /* take care for different registers */ |
433 | if (data->kind == f75387) { | |
434 | reg = F75375_REG_FAN_TIMER; | |
435 | ctrl = F75387_FAN_CTRL_LINEAR(nr); | |
436 | } else { | |
437 | reg = F75375_REG_CONFIG1; | |
438 | ctrl = F75375_FAN_CTRL_LINEAR(nr); | |
439 | } | |
440 | ||
84f1e442 | 441 | mutex_lock(&data->update_lock); |
f58c44e6 BG |
442 | conf = f75375_read8(client, reg); |
443 | conf &= ~(1 << ctrl); | |
84f1e442 RV |
444 | |
445 | if (val == 0) | |
f58c44e6 | 446 | conf |= (1 << ctrl); |
84f1e442 | 447 | |
f58c44e6 | 448 | f75375_write8(client, reg, conf); |
84f1e442 RV |
449 | data->pwm_mode[nr] = val; |
450 | mutex_unlock(&data->update_lock); | |
451 | return count; | |
452 | } | |
453 | ||
454 | static ssize_t show_pwm(struct device *dev, struct device_attribute | |
455 | *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", data->pwm[nr]); | |
460 | } | |
461 | ||
462 | static ssize_t show_pwm_mode(struct device *dev, struct device_attribute | |
463 | *attr, char *buf) | |
464 | { | |
465 | int nr = to_sensor_dev_attr(attr)->index; | |
466 | struct f75375_data *data = f75375_update_device(dev); | |
467 | return sprintf(buf, "%d\n", data->pwm_mode[nr]); | |
468 | } | |
469 | ||
470 | #define VOLT_FROM_REG(val) ((val) * 8) | |
471 | #define VOLT_TO_REG(val) ((val) / 8) | |
472 | ||
473 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, | |
474 | char *buf) | |
475 | { | |
476 | int nr = to_sensor_dev_attr(attr)->index; | |
477 | struct f75375_data *data = f75375_update_device(dev); | |
478 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr])); | |
479 | } | |
480 | ||
481 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, | |
482 | char *buf) | |
483 | { | |
484 | int nr = to_sensor_dev_attr(attr)->index; | |
485 | struct f75375_data *data = f75375_update_device(dev); | |
486 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr])); | |
487 | } | |
488 | ||
489 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, | |
490 | char *buf) | |
491 | { | |
492 | int nr = to_sensor_dev_attr(attr)->index; | |
493 | struct f75375_data *data = f75375_update_device(dev); | |
494 | return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr])); | |
495 | } | |
496 | ||
497 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, | |
498 | const char *buf, size_t count) | |
499 | { | |
500 | int nr = to_sensor_dev_attr(attr)->index; | |
501 | struct i2c_client *client = to_i2c_client(dev); | |
502 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
503 | unsigned long val; |
504 | int err; | |
505 | ||
506 | err = kstrtoul(buf, 10, &val); | |
507 | if (err < 0) | |
508 | return err; | |
509 | ||
84f1e442 RV |
510 | val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff); |
511 | mutex_lock(&data->update_lock); | |
512 | data->in_max[nr] = val; | |
513 | f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]); | |
514 | mutex_unlock(&data->update_lock); | |
515 | return count; | |
516 | } | |
517 | ||
518 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, | |
519 | const char *buf, size_t count) | |
520 | { | |
521 | int nr = to_sensor_dev_attr(attr)->index; | |
522 | struct i2c_client *client = to_i2c_client(dev); | |
523 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
524 | unsigned long val; |
525 | int err; | |
526 | ||
527 | err = kstrtoul(buf, 10, &val); | |
528 | if (err < 0) | |
529 | return err; | |
530 | ||
84f1e442 RV |
531 | val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff); |
532 | mutex_lock(&data->update_lock); | |
533 | data->in_min[nr] = val; | |
534 | f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]); | |
535 | mutex_unlock(&data->update_lock); | |
536 | return count; | |
537 | } | |
538 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
539 | #define TEMP_TO_REG(val) ((val) / 1000) | |
f58c44e6 | 540 | #define TEMP11_FROM_REG(reg) ((reg) / 32 * 125) |
84f1e442 | 541 | |
f58c44e6 | 542 | static ssize_t show_temp11(struct device *dev, struct device_attribute *attr, |
84f1e442 RV |
543 | char *buf) |
544 | { | |
545 | int nr = to_sensor_dev_attr(attr)->index; | |
546 | struct f75375_data *data = f75375_update_device(dev); | |
f58c44e6 | 547 | return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[nr])); |
84f1e442 RV |
548 | } |
549 | ||
550 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, | |
551 | char *buf) | |
552 | { | |
553 | int nr = to_sensor_dev_attr(attr)->index; | |
554 | struct f75375_data *data = f75375_update_device(dev); | |
555 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr])); | |
556 | } | |
557 | ||
558 | static ssize_t show_temp_max_hyst(struct device *dev, | |
559 | struct device_attribute *attr, char *buf) | |
560 | { | |
561 | int nr = to_sensor_dev_attr(attr)->index; | |
562 | struct f75375_data *data = f75375_update_device(dev); | |
563 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr])); | |
564 | } | |
565 | ||
566 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, | |
567 | const char *buf, size_t count) | |
568 | { | |
569 | int nr = to_sensor_dev_attr(attr)->index; | |
570 | struct i2c_client *client = to_i2c_client(dev); | |
571 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
572 | unsigned long val; |
573 | int err; | |
574 | ||
575 | err = kstrtoul(buf, 10, &val); | |
576 | if (err < 0) | |
577 | return err; | |
578 | ||
84f1e442 RV |
579 | val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127); |
580 | mutex_lock(&data->update_lock); | |
581 | data->temp_high[nr] = val; | |
582 | f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]); | |
583 | mutex_unlock(&data->update_lock); | |
584 | return count; | |
585 | } | |
586 | ||
587 | static ssize_t set_temp_max_hyst(struct device *dev, | |
588 | struct device_attribute *attr, const char *buf, size_t count) | |
589 | { | |
590 | int nr = to_sensor_dev_attr(attr)->index; | |
591 | struct i2c_client *client = to_i2c_client(dev); | |
592 | struct f75375_data *data = i2c_get_clientdata(client); | |
4fd826ef GR |
593 | unsigned long val; |
594 | int err; | |
595 | ||
596 | err = kstrtoul(buf, 10, &val); | |
597 | if (err < 0) | |
598 | return err; | |
599 | ||
84f1e442 RV |
600 | val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127); |
601 | mutex_lock(&data->update_lock); | |
602 | data->temp_max_hyst[nr] = val; | |
603 | f75375_write8(client, F75375_REG_TEMP_HYST(nr), | |
604 | data->temp_max_hyst[nr]); | |
605 | mutex_unlock(&data->update_lock); | |
606 | return count; | |
607 | } | |
608 | ||
609 | #define show_fan(thing) \ | |
610 | static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \ | |
611 | char *buf)\ | |
612 | {\ | |
613 | int nr = to_sensor_dev_attr(attr)->index;\ | |
614 | struct f75375_data *data = f75375_update_device(dev); \ | |
615 | return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \ | |
616 | } | |
617 | ||
618 | show_fan(fan); | |
619 | show_fan(fan_min); | |
740f6be3 GR |
620 | show_fan(fan_max); |
621 | show_fan(fan_target); | |
84f1e442 RV |
622 | |
623 | static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0); | |
624 | static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR, | |
625 | show_in_max, set_in_max, 0); | |
626 | static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR, | |
627 | show_in_min, set_in_min, 0); | |
628 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1); | |
629 | static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR, | |
630 | show_in_max, set_in_max, 1); | |
631 | static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR, | |
632 | show_in_min, set_in_min, 1); | |
633 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2); | |
634 | static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR, | |
635 | show_in_max, set_in_max, 2); | |
636 | static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR, | |
637 | show_in_min, set_in_min, 2); | |
638 | static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3); | |
639 | static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR, | |
640 | show_in_max, set_in_max, 3); | |
641 | static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR, | |
642 | show_in_min, set_in_min, 3); | |
f58c44e6 | 643 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp11, NULL, 0); |
84f1e442 RV |
644 | static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR, |
645 | show_temp_max_hyst, set_temp_max_hyst, 0); | |
646 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR, | |
647 | show_temp_max, set_temp_max, 0); | |
f58c44e6 | 648 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 1); |
84f1e442 RV |
649 | static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR, |
650 | show_temp_max_hyst, set_temp_max_hyst, 1); | |
651 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR, | |
652 | show_temp_max, set_temp_max, 1); | |
653 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
740f6be3 | 654 | static SENSOR_DEVICE_ATTR(fan1_max, S_IRUGO, show_fan_max, NULL, 0); |
84f1e442 RV |
655 | static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR, |
656 | show_fan_min, set_fan_min, 0); | |
740f6be3 GR |
657 | static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO|S_IWUSR, |
658 | show_fan_target, set_fan_target, 0); | |
84f1e442 | 659 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); |
740f6be3 | 660 | static SENSOR_DEVICE_ATTR(fan2_max, S_IRUGO, show_fan_max, NULL, 1); |
84f1e442 RV |
661 | static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR, |
662 | show_fan_min, set_fan_min, 1); | |
740f6be3 GR |
663 | static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO|S_IWUSR, |
664 | show_fan_target, set_fan_target, 1); | |
84f1e442 RV |
665 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, |
666 | show_pwm, set_pwm, 0); | |
667 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, | |
668 | show_pwm_enable, set_pwm_enable, 0); | |
76e83bef | 669 | static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, |
84f1e442 RV |
670 | show_pwm_mode, set_pwm_mode, 0); |
671 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, | |
672 | show_pwm, set_pwm, 1); | |
673 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, | |
674 | show_pwm_enable, set_pwm_enable, 1); | |
76e83bef | 675 | static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, |
84f1e442 RV |
676 | show_pwm_mode, set_pwm_mode, 1); |
677 | ||
678 | static struct attribute *f75375_attributes[] = { | |
679 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
680 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
681 | &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, | |
682 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
683 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
684 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, | |
685 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
740f6be3 | 686 | &sensor_dev_attr_fan1_max.dev_attr.attr, |
84f1e442 | 687 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
740f6be3 | 688 | &sensor_dev_attr_fan1_target.dev_attr.attr, |
84f1e442 | 689 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
740f6be3 | 690 | &sensor_dev_attr_fan2_max.dev_attr.attr, |
84f1e442 | 691 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
740f6be3 | 692 | &sensor_dev_attr_fan2_target.dev_attr.attr, |
84f1e442 RV |
693 | &sensor_dev_attr_pwm1.dev_attr.attr, |
694 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
695 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, | |
696 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
697 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
698 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, | |
699 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
700 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
701 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
702 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
703 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
704 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
705 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
706 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
707 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
708 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
709 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
710 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
711 | NULL | |
712 | }; | |
713 | ||
714 | static const struct attribute_group f75375_group = { | |
715 | .attrs = f75375_attributes, | |
716 | }; | |
717 | ||
ff312d07 RV |
718 | static void f75375_init(struct i2c_client *client, struct f75375_data *data, |
719 | struct f75375s_platform_data *f75375s_pdata) | |
720 | { | |
721 | int nr; | |
b1b561a2 GR |
722 | |
723 | if (!f75375s_pdata) { | |
724 | u8 conf, mode; | |
725 | int nr; | |
726 | ||
727 | conf = f75375_read8(client, F75375_REG_CONFIG1); | |
728 | mode = f75375_read8(client, F75375_REG_FAN_TIMER); | |
729 | for (nr = 0; nr < 2; nr++) { | |
f58c44e6 BG |
730 | if (data->kind == f75387) { |
731 | bool manu, duty; | |
732 | ||
a367a1e0 | 733 | if (!(mode & (1 << F75387_FAN_CTRL_LINEAR(nr)))) |
f58c44e6 BG |
734 | data->pwm_mode[nr] = 1; |
735 | ||
736 | manu = ((mode >> F75387_FAN_MANU_MODE(nr)) & 1); | |
737 | duty = ((mode >> F75387_FAN_DUTY_MODE(nr)) & 1); | |
738 | if (manu && duty) | |
739 | /* speed */ | |
740 | data->pwm_enable[nr] = 3; | |
741 | else if (!manu && duty) | |
742 | /* automatic */ | |
743 | data->pwm_enable[nr] = 2; | |
744 | else | |
745 | /* manual */ | |
746 | data->pwm_enable[nr] = 1; | |
747 | } else { | |
748 | if (!(conf & (1 << F75375_FAN_CTRL_LINEAR(nr)))) | |
749 | data->pwm_mode[nr] = 1; | |
750 | ||
751 | switch ((mode >> FAN_CTRL_MODE(nr)) & 3) { | |
752 | case 0: /* speed */ | |
753 | data->pwm_enable[nr] = 3; | |
754 | break; | |
755 | case 1: /* automatic */ | |
756 | data->pwm_enable[nr] = 2; | |
757 | break; | |
758 | default: /* manual */ | |
759 | data->pwm_enable[nr] = 1; | |
760 | break; | |
761 | } | |
b1b561a2 GR |
762 | } |
763 | } | |
764 | return; | |
765 | } | |
766 | ||
ff312d07 RV |
767 | set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]); |
768 | set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]); | |
769 | for (nr = 0; nr < 2; nr++) { | |
770 | data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255); | |
331255d3 | 771 | f75375_write_pwm(client, nr); |
ff312d07 RV |
772 | } |
773 | ||
774 | } | |
775 | ||
d2653e92 JD |
776 | static int f75375_probe(struct i2c_client *client, |
777 | const struct i2c_device_id *id) | |
620c142d | 778 | { |
51b3e270 | 779 | struct f75375_data *data; |
ff312d07 | 780 | struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data; |
620c142d RV |
781 | int err; |
782 | ||
783 | if (!i2c_check_functionality(client->adapter, | |
784 | I2C_FUNC_SMBUS_BYTE_DATA)) | |
785 | return -EIO; | |
4fd826ef GR |
786 | data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL); |
787 | if (!data) | |
620c142d RV |
788 | return -ENOMEM; |
789 | ||
790 | i2c_set_clientdata(client, data); | |
620c142d | 791 | mutex_init(&data->update_lock); |
3760f736 | 792 | data->kind = id->driver_data; |
620c142d | 793 | |
4fd826ef GR |
794 | err = sysfs_create_group(&client->dev.kobj, &f75375_group); |
795 | if (err) | |
620c142d RV |
796 | goto exit_free; |
797 | ||
edeea102 | 798 | if (data->kind != f75373) { |
76e83bef RV |
799 | err = sysfs_chmod_file(&client->dev.kobj, |
800 | &sensor_dev_attr_pwm1_mode.dev_attr.attr, | |
801 | S_IRUGO | S_IWUSR); | |
802 | if (err) | |
803 | goto exit_remove; | |
804 | err = sysfs_chmod_file(&client->dev.kobj, | |
805 | &sensor_dev_attr_pwm2_mode.dev_attr.attr, | |
806 | S_IRUGO | S_IWUSR); | |
807 | if (err) | |
808 | goto exit_remove; | |
809 | } | |
810 | ||
620c142d RV |
811 | data->hwmon_dev = hwmon_device_register(&client->dev); |
812 | if (IS_ERR(data->hwmon_dev)) { | |
813 | err = PTR_ERR(data->hwmon_dev); | |
814 | goto exit_remove; | |
815 | } | |
816 | ||
b1b561a2 | 817 | f75375_init(client, data, f75375s_pdata); |
ff312d07 | 818 | |
620c142d RV |
819 | return 0; |
820 | ||
821 | exit_remove: | |
822 | sysfs_remove_group(&client->dev.kobj, &f75375_group); | |
823 | exit_free: | |
824 | kfree(data); | |
620c142d RV |
825 | return err; |
826 | } | |
827 | ||
828 | static int f75375_remove(struct i2c_client *client) | |
829 | { | |
830 | struct f75375_data *data = i2c_get_clientdata(client); | |
831 | hwmon_device_unregister(data->hwmon_dev); | |
832 | sysfs_remove_group(&client->dev.kobj, &f75375_group); | |
84f1e442 RV |
833 | kfree(data); |
834 | return 0; | |
835 | } | |
836 | ||
935ada8c | 837 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 838 | static int f75375_detect(struct i2c_client *client, |
935ada8c | 839 | struct i2c_board_info *info) |
84f1e442 | 840 | { |
935ada8c | 841 | struct i2c_adapter *adapter = client->adapter; |
52df6440 JD |
842 | u16 vendid, chipid; |
843 | u8 version; | |
844 | const char *name; | |
84f1e442 | 845 | |
52df6440 JD |
846 | vendid = f75375_read16(client, F75375_REG_VENDOR); |
847 | chipid = f75375_read16(client, F75375_CHIP_ID); | |
f58c44e6 BG |
848 | if (vendid != 0x1934) |
849 | return -ENODEV; | |
850 | ||
851 | if (chipid == 0x0306) | |
84f1e442 | 852 | name = "f75375"; |
f58c44e6 | 853 | else if (chipid == 0x0204) |
84f1e442 | 854 | name = "f75373"; |
f58c44e6 BG |
855 | else if (chipid == 0x0410) |
856 | name = "f75387"; | |
52df6440 JD |
857 | else |
858 | return -ENODEV; | |
859 | ||
860 | version = f75375_read8(client, F75375_REG_VERSION); | |
84f1e442 | 861 | dev_info(&adapter->dev, "found %s version: %02X\n", name, version); |
935ada8c | 862 | strlcpy(info->type, name, I2C_NAME_SIZE); |
84f1e442 | 863 | |
84f1e442 | 864 | return 0; |
84f1e442 RV |
865 | } |
866 | ||
867 | static int __init sensors_f75375_init(void) | |
868 | { | |
935ada8c | 869 | return i2c_add_driver(&f75375_driver); |
84f1e442 RV |
870 | } |
871 | ||
872 | static void __exit sensors_f75375_exit(void) | |
873 | { | |
874 | i2c_del_driver(&f75375_driver); | |
875 | } | |
876 | ||
b26e0ed4 | 877 | MODULE_AUTHOR("Riku Voipio"); |
84f1e442 | 878 | MODULE_LICENSE("GPL"); |
f58c44e6 | 879 | MODULE_DESCRIPTION("F75373/F75375/F75387 hardware monitoring driver"); |
84f1e442 RV |
880 | |
881 | module_init(sensors_f75375_init); | |
882 | module_exit(sensors_f75375_exit); |