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6f9703d0 DW |
1 | /* |
2 | * A hwmon driver for the Analog Devices ADT7470 | |
3 | * Copyright (C) 2007 IBM | |
4 | * | |
5 | * Author: Darrick J. Wong <djwong@us.ibm.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/jiffies.h> | |
24 | #include <linux/i2c.h> | |
25 | #include <linux/hwmon.h> | |
26 | #include <linux/hwmon-sysfs.h> | |
27 | #include <linux/err.h> | |
28 | #include <linux/mutex.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/log2.h> | |
31 | ||
32 | /* Addresses to scan */ | |
25e9c86d | 33 | static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; |
6f9703d0 DW |
34 | |
35 | /* Insmod parameters */ | |
36 | I2C_CLIENT_INSMOD_1(adt7470); | |
37 | ||
38 | /* ADT7470 registers */ | |
39 | #define ADT7470_REG_BASE_ADDR 0x20 | |
40 | #define ADT7470_REG_TEMP_BASE_ADDR 0x20 | |
41 | #define ADT7470_REG_TEMP_MAX_ADDR 0x29 | |
42 | #define ADT7470_REG_FAN_BASE_ADDR 0x2A | |
43 | #define ADT7470_REG_FAN_MAX_ADDR 0x31 | |
44 | #define ADT7470_REG_PWM_BASE_ADDR 0x32 | |
45 | #define ADT7470_REG_PWM_MAX_ADDR 0x35 | |
46 | #define ADT7470_REG_PWM_MAX_BASE_ADDR 0x38 | |
47 | #define ADT7470_REG_PWM_MAX_MAX_ADDR 0x3B | |
48 | #define ADT7470_REG_CFG 0x40 | |
49 | #define ADT7470_FSPD_MASK 0x04 | |
50 | #define ADT7470_REG_ALARM1 0x41 | |
fe03f28c DW |
51 | #define ADT7470_R1T_ALARM 0x01 |
52 | #define ADT7470_R2T_ALARM 0x02 | |
53 | #define ADT7470_R3T_ALARM 0x04 | |
54 | #define ADT7470_R4T_ALARM 0x08 | |
55 | #define ADT7470_R5T_ALARM 0x10 | |
56 | #define ADT7470_R6T_ALARM 0x20 | |
57 | #define ADT7470_R7T_ALARM 0x40 | |
58 | #define ADT7470_OOL_ALARM 0x80 | |
6f9703d0 | 59 | #define ADT7470_REG_ALARM2 0x42 |
fe03f28c DW |
60 | #define ADT7470_R8T_ALARM 0x01 |
61 | #define ADT7470_R9T_ALARM 0x02 | |
62 | #define ADT7470_R10T_ALARM 0x04 | |
63 | #define ADT7470_FAN1_ALARM 0x10 | |
64 | #define ADT7470_FAN2_ALARM 0x20 | |
65 | #define ADT7470_FAN3_ALARM 0x40 | |
66 | #define ADT7470_FAN4_ALARM 0x80 | |
6f9703d0 DW |
67 | #define ADT7470_REG_TEMP_LIMITS_BASE_ADDR 0x44 |
68 | #define ADT7470_REG_TEMP_LIMITS_MAX_ADDR 0x57 | |
69 | #define ADT7470_REG_FAN_MIN_BASE_ADDR 0x58 | |
70 | #define ADT7470_REG_FAN_MIN_MAX_ADDR 0x5F | |
71 | #define ADT7470_REG_FAN_MAX_BASE_ADDR 0x60 | |
72 | #define ADT7470_REG_FAN_MAX_MAX_ADDR 0x67 | |
73 | #define ADT7470_REG_PWM_CFG_BASE_ADDR 0x68 | |
74 | #define ADT7470_REG_PWM12_CFG 0x68 | |
75 | #define ADT7470_PWM2_AUTO_MASK 0x40 | |
76 | #define ADT7470_PWM1_AUTO_MASK 0x80 | |
77 | #define ADT7470_REG_PWM34_CFG 0x69 | |
78 | #define ADT7470_PWM3_AUTO_MASK 0x40 | |
79 | #define ADT7470_PWM4_AUTO_MASK 0x80 | |
80 | #define ADT7470_REG_PWM_MIN_BASE_ADDR 0x6A | |
81 | #define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D | |
82 | #define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E | |
83 | #define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR 0x71 | |
84 | #define ADT7470_REG_ACOUSTICS12 0x75 | |
85 | #define ADT7470_REG_ACOUSTICS34 0x76 | |
86 | #define ADT7470_REG_DEVICE 0x3D | |
87 | #define ADT7470_REG_VENDOR 0x3E | |
88 | #define ADT7470_REG_REVISION 0x3F | |
89 | #define ADT7470_REG_ALARM1_MASK 0x72 | |
90 | #define ADT7470_REG_ALARM2_MASK 0x73 | |
91 | #define ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR 0x7C | |
92 | #define ADT7470_REG_PWM_AUTO_TEMP_MAX_ADDR 0x7D | |
93 | #define ADT7470_REG_MAX_ADDR 0x81 | |
94 | ||
95 | #define ADT7470_TEMP_COUNT 10 | |
96 | #define ADT7470_TEMP_REG(x) (ADT7470_REG_TEMP_BASE_ADDR + (x)) | |
97 | #define ADT7470_TEMP_MIN_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
98 | #define ADT7470_TEMP_MAX_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + \ | |
99 | ((x) * 2) + 1) | |
100 | ||
101 | #define ADT7470_FAN_COUNT 4 | |
102 | #define ADT7470_REG_FAN(x) (ADT7470_REG_FAN_BASE_ADDR + ((x) * 2)) | |
103 | #define ADT7470_REG_FAN_MIN(x) (ADT7470_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
104 | #define ADT7470_REG_FAN_MAX(x) (ADT7470_REG_FAN_MAX_BASE_ADDR + ((x) * 2)) | |
105 | ||
106 | #define ADT7470_PWM_COUNT 4 | |
107 | #define ADT7470_REG_PWM(x) (ADT7470_REG_PWM_BASE_ADDR + (x)) | |
108 | #define ADT7470_REG_PWM_MAX(x) (ADT7470_REG_PWM_MAX_BASE_ADDR + (x)) | |
109 | #define ADT7470_REG_PWM_MIN(x) (ADT7470_REG_PWM_MIN_BASE_ADDR + (x)) | |
110 | #define ADT7470_REG_PWM_TMIN(x) (ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) | |
111 | #define ADT7470_REG_PWM_CFG(x) (ADT7470_REG_PWM_CFG_BASE_ADDR + ((x) / 2)) | |
112 | #define ADT7470_REG_PWM_AUTO_TEMP(x) (ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR + \ | |
113 | ((x) / 2)) | |
114 | ||
fe03f28c DW |
115 | #define ALARM2(x) ((x) << 8) |
116 | ||
6f9703d0 DW |
117 | #define ADT7470_VENDOR 0x41 |
118 | #define ADT7470_DEVICE 0x70 | |
119 | /* datasheet only mentions a revision 2 */ | |
120 | #define ADT7470_REVISION 0x02 | |
121 | ||
122 | /* "all temps" according to hwmon sysfs interface spec */ | |
123 | #define ADT7470_PWM_ALL_TEMPS 0x3FF | |
124 | ||
125 | /* How often do we reread sensors values? (In jiffies) */ | |
126 | #define SENSOR_REFRESH_INTERVAL (5 * HZ) | |
127 | ||
128 | /* How often do we reread sensor limit values? (In jiffies) */ | |
129 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
130 | ||
131 | /* sleep 1s while gathering temperature data */ | |
132 | #define TEMP_COLLECTION_TIME 1000 | |
133 | ||
6f9703d0 DW |
134 | /* datasheet says to divide this number by the fan reading to get fan rpm */ |
135 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
136 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
137 | #define FAN_PERIOD_INVALID 65535 | |
138 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
139 | ||
140 | struct adt7470_data { | |
1beeffe4 | 141 | struct device *hwmon_dev; |
6f9703d0 DW |
142 | struct attribute_group attrs; |
143 | struct mutex lock; | |
144 | char sensors_valid; | |
145 | char limits_valid; | |
146 | unsigned long sensors_last_updated; /* In jiffies */ | |
147 | unsigned long limits_last_updated; /* In jiffies */ | |
148 | ||
149 | s8 temp[ADT7470_TEMP_COUNT]; | |
150 | s8 temp_min[ADT7470_TEMP_COUNT]; | |
151 | s8 temp_max[ADT7470_TEMP_COUNT]; | |
152 | u16 fan[ADT7470_FAN_COUNT]; | |
153 | u16 fan_min[ADT7470_FAN_COUNT]; | |
154 | u16 fan_max[ADT7470_FAN_COUNT]; | |
fe03f28c DW |
155 | u16 alarm; |
156 | u16 alarms_mask; | |
6f9703d0 DW |
157 | u8 force_pwm_max; |
158 | u8 pwm[ADT7470_PWM_COUNT]; | |
159 | u8 pwm_max[ADT7470_PWM_COUNT]; | |
160 | u8 pwm_automatic[ADT7470_PWM_COUNT]; | |
161 | u8 pwm_min[ADT7470_PWM_COUNT]; | |
162 | s8 pwm_tmin[ADT7470_PWM_COUNT]; | |
163 | u8 pwm_auto_temp[ADT7470_PWM_COUNT]; | |
164 | }; | |
165 | ||
008f1ca5 JD |
166 | static int adt7470_probe(struct i2c_client *client, |
167 | const struct i2c_device_id *id); | |
168 | static int adt7470_detect(struct i2c_client *client, int kind, | |
169 | struct i2c_board_info *info); | |
170 | static int adt7470_remove(struct i2c_client *client); | |
171 | ||
172 | static const struct i2c_device_id adt7470_id[] = { | |
173 | { "adt7470", adt7470 }, | |
174 | { } | |
175 | }; | |
176 | MODULE_DEVICE_TABLE(i2c, adt7470_id); | |
6f9703d0 DW |
177 | |
178 | static struct i2c_driver adt7470_driver = { | |
008f1ca5 | 179 | .class = I2C_CLASS_HWMON, |
6f9703d0 DW |
180 | .driver = { |
181 | .name = "adt7470", | |
182 | }, | |
008f1ca5 JD |
183 | .probe = adt7470_probe, |
184 | .remove = adt7470_remove, | |
185 | .id_table = adt7470_id, | |
186 | .detect = adt7470_detect, | |
187 | .address_data = &addr_data, | |
6f9703d0 DW |
188 | }; |
189 | ||
190 | /* | |
191 | * 16-bit registers on the ADT7470 are low-byte first. The data sheet says | |
192 | * that the low byte must be read before the high byte. | |
193 | */ | |
194 | static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg) | |
195 | { | |
196 | u16 foo; | |
197 | foo = i2c_smbus_read_byte_data(client, reg); | |
198 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
199 | return foo; | |
200 | } | |
201 | ||
202 | static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg, | |
203 | u16 value) | |
204 | { | |
205 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
206 | && i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
207 | } | |
208 | ||
209 | static void adt7470_init_client(struct i2c_client *client) | |
210 | { | |
211 | int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
212 | ||
213 | if (reg < 0) { | |
214 | dev_err(&client->dev, "cannot read configuration register\n"); | |
215 | } else { | |
216 | /* start monitoring (and do a self-test) */ | |
217 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); | |
218 | } | |
219 | } | |
220 | ||
221 | static struct adt7470_data *adt7470_update_device(struct device *dev) | |
222 | { | |
223 | struct i2c_client *client = to_i2c_client(dev); | |
224 | struct adt7470_data *data = i2c_get_clientdata(client); | |
225 | unsigned long local_jiffies = jiffies; | |
226 | u8 cfg; | |
227 | int i; | |
228 | ||
229 | mutex_lock(&data->lock); | |
230 | if (time_before(local_jiffies, data->sensors_last_updated + | |
231 | SENSOR_REFRESH_INTERVAL) | |
232 | && data->sensors_valid) | |
233 | goto no_sensor_update; | |
234 | ||
235 | /* start reading temperature sensors */ | |
236 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
237 | cfg |= 0x80; | |
238 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
239 | ||
240 | /* | |
241 | * Delay is 200ms * number of tmp05 sensors. Too bad | |
242 | * there's no way to figure out how many are connected. | |
243 | * For now, assume 1s will work. | |
244 | */ | |
245 | msleep(TEMP_COLLECTION_TIME); | |
246 | ||
247 | /* done reading temperature sensors */ | |
248 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
249 | cfg &= ~0x80; | |
250 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
251 | ||
252 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) | |
253 | data->temp[i] = i2c_smbus_read_byte_data(client, | |
254 | ADT7470_TEMP_REG(i)); | |
255 | ||
256 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
257 | data->fan[i] = adt7470_read_word_data(client, | |
258 | ADT7470_REG_FAN(i)); | |
259 | ||
260 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
261 | int reg; | |
262 | int reg_mask; | |
263 | ||
264 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
265 | ADT7470_REG_PWM(i)); | |
266 | ||
267 | if (i % 2) | |
268 | reg_mask = ADT7470_PWM2_AUTO_MASK; | |
269 | else | |
270 | reg_mask = ADT7470_PWM1_AUTO_MASK; | |
271 | ||
272 | reg = ADT7470_REG_PWM_CFG(i); | |
273 | if (i2c_smbus_read_byte_data(client, reg) & reg_mask) | |
274 | data->pwm_automatic[i] = 1; | |
275 | else | |
276 | data->pwm_automatic[i] = 0; | |
277 | ||
278 | reg = ADT7470_REG_PWM_AUTO_TEMP(i); | |
279 | cfg = i2c_smbus_read_byte_data(client, reg); | |
280 | if (!(i % 2)) | |
281 | data->pwm_auto_temp[i] = cfg >> 4; | |
282 | else | |
283 | data->pwm_auto_temp[i] = cfg & 0xF; | |
284 | } | |
285 | ||
286 | if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) & | |
287 | ADT7470_FSPD_MASK) | |
288 | data->force_pwm_max = 1; | |
289 | else | |
290 | data->force_pwm_max = 0; | |
291 | ||
fe03f28c DW |
292 | data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1); |
293 | if (data->alarm & ADT7470_OOL_ALARM) | |
294 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
295 | ADT7470_REG_ALARM2)); | |
6f9703d0 DW |
296 | data->alarms_mask = adt7470_read_word_data(client, |
297 | ADT7470_REG_ALARM1_MASK); | |
298 | ||
299 | data->sensors_last_updated = local_jiffies; | |
300 | data->sensors_valid = 1; | |
301 | ||
302 | no_sensor_update: | |
303 | if (time_before(local_jiffies, data->limits_last_updated + | |
304 | LIMIT_REFRESH_INTERVAL) | |
305 | && data->limits_valid) | |
306 | goto out; | |
307 | ||
308 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
309 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
310 | ADT7470_TEMP_MIN_REG(i)); | |
311 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
312 | ADT7470_TEMP_MAX_REG(i)); | |
313 | } | |
314 | ||
315 | for (i = 0; i < ADT7470_FAN_COUNT; i++) { | |
316 | data->fan_min[i] = adt7470_read_word_data(client, | |
317 | ADT7470_REG_FAN_MIN(i)); | |
318 | data->fan_max[i] = adt7470_read_word_data(client, | |
319 | ADT7470_REG_FAN_MAX(i)); | |
320 | } | |
321 | ||
322 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
323 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
324 | ADT7470_REG_PWM_MAX(i)); | |
325 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
326 | ADT7470_REG_PWM_MIN(i)); | |
327 | data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, | |
328 | ADT7470_REG_PWM_TMIN(i)); | |
329 | } | |
330 | ||
331 | data->limits_last_updated = local_jiffies; | |
332 | data->limits_valid = 1; | |
333 | ||
334 | out: | |
335 | mutex_unlock(&data->lock); | |
336 | return data; | |
337 | } | |
338 | ||
339 | static ssize_t show_temp_min(struct device *dev, | |
340 | struct device_attribute *devattr, | |
341 | char *buf) | |
342 | { | |
343 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
344 | struct adt7470_data *data = adt7470_update_device(dev); | |
345 | return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]); | |
346 | } | |
347 | ||
348 | static ssize_t set_temp_min(struct device *dev, | |
349 | struct device_attribute *devattr, | |
350 | const char *buf, | |
351 | size_t count) | |
352 | { | |
353 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
354 | struct i2c_client *client = to_i2c_client(dev); | |
355 | struct adt7470_data *data = i2c_get_clientdata(client); | |
356 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
357 | ||
358 | mutex_lock(&data->lock); | |
359 | data->temp_min[attr->index] = temp; | |
360 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index), | |
361 | temp); | |
362 | mutex_unlock(&data->lock); | |
363 | ||
364 | return count; | |
365 | } | |
366 | ||
367 | static ssize_t show_temp_max(struct device *dev, | |
368 | struct device_attribute *devattr, | |
369 | char *buf) | |
370 | { | |
371 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
372 | struct adt7470_data *data = adt7470_update_device(dev); | |
373 | return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]); | |
374 | } | |
375 | ||
376 | static ssize_t set_temp_max(struct device *dev, | |
377 | struct device_attribute *devattr, | |
378 | const char *buf, | |
379 | size_t count) | |
380 | { | |
381 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
382 | struct i2c_client *client = to_i2c_client(dev); | |
383 | struct adt7470_data *data = i2c_get_clientdata(client); | |
384 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
385 | ||
386 | mutex_lock(&data->lock); | |
387 | data->temp_max[attr->index] = temp; | |
388 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index), | |
389 | temp); | |
390 | mutex_unlock(&data->lock); | |
391 | ||
392 | return count; | |
393 | } | |
394 | ||
395 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
396 | char *buf) | |
397 | { | |
398 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
399 | struct adt7470_data *data = adt7470_update_device(dev); | |
400 | return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]); | |
401 | } | |
402 | ||
fe03f28c | 403 | static ssize_t show_alarm_mask(struct device *dev, |
6f9703d0 DW |
404 | struct device_attribute *devattr, |
405 | char *buf) | |
406 | { | |
6f9703d0 DW |
407 | struct adt7470_data *data = adt7470_update_device(dev); |
408 | ||
fe03f28c | 409 | return sprintf(buf, "%x\n", data->alarms_mask); |
6f9703d0 DW |
410 | } |
411 | ||
412 | static ssize_t show_fan_max(struct device *dev, | |
413 | struct device_attribute *devattr, | |
414 | char *buf) | |
415 | { | |
416 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
417 | struct adt7470_data *data = adt7470_update_device(dev); | |
418 | ||
419 | if (FAN_DATA_VALID(data->fan_max[attr->index])) | |
420 | return sprintf(buf, "%d\n", | |
421 | FAN_PERIOD_TO_RPM(data->fan_max[attr->index])); | |
422 | else | |
423 | return sprintf(buf, "0\n"); | |
424 | } | |
425 | ||
426 | static ssize_t set_fan_max(struct device *dev, | |
427 | struct device_attribute *devattr, | |
428 | const char *buf, size_t count) | |
429 | { | |
430 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
431 | struct i2c_client *client = to_i2c_client(dev); | |
432 | struct adt7470_data *data = i2c_get_clientdata(client); | |
433 | int temp = simple_strtol(buf, NULL, 10); | |
434 | ||
435 | if (!temp) | |
436 | return -EINVAL; | |
437 | temp = FAN_RPM_TO_PERIOD(temp); | |
438 | ||
439 | mutex_lock(&data->lock); | |
440 | data->fan_max[attr->index] = temp; | |
441 | adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp); | |
442 | mutex_unlock(&data->lock); | |
443 | ||
444 | return count; | |
445 | } | |
446 | ||
447 | static ssize_t show_fan_min(struct device *dev, | |
448 | struct device_attribute *devattr, | |
449 | char *buf) | |
450 | { | |
451 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
452 | struct adt7470_data *data = adt7470_update_device(dev); | |
453 | ||
454 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
455 | return sprintf(buf, "%d\n", | |
456 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
457 | else | |
458 | return sprintf(buf, "0\n"); | |
459 | } | |
460 | ||
461 | static ssize_t set_fan_min(struct device *dev, | |
462 | struct device_attribute *devattr, | |
463 | const char *buf, size_t count) | |
464 | { | |
465 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
466 | struct i2c_client *client = to_i2c_client(dev); | |
467 | struct adt7470_data *data = i2c_get_clientdata(client); | |
468 | int temp = simple_strtol(buf, NULL, 10); | |
469 | ||
470 | if (!temp) | |
471 | return -EINVAL; | |
472 | temp = FAN_RPM_TO_PERIOD(temp); | |
473 | ||
474 | mutex_lock(&data->lock); | |
475 | data->fan_min[attr->index] = temp; | |
476 | adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp); | |
477 | mutex_unlock(&data->lock); | |
478 | ||
479 | return count; | |
480 | } | |
481 | ||
482 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
483 | char *buf) | |
484 | { | |
485 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
486 | struct adt7470_data *data = adt7470_update_device(dev); | |
487 | ||
488 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
489 | return sprintf(buf, "%d\n", | |
490 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
491 | else | |
492 | return sprintf(buf, "0\n"); | |
493 | } | |
494 | ||
495 | static ssize_t show_force_pwm_max(struct device *dev, | |
496 | struct device_attribute *devattr, | |
497 | char *buf) | |
498 | { | |
499 | struct adt7470_data *data = adt7470_update_device(dev); | |
500 | return sprintf(buf, "%d\n", data->force_pwm_max); | |
501 | } | |
502 | ||
503 | static ssize_t set_force_pwm_max(struct device *dev, | |
504 | struct device_attribute *devattr, | |
505 | const char *buf, | |
506 | size_t count) | |
507 | { | |
508 | struct i2c_client *client = to_i2c_client(dev); | |
509 | struct adt7470_data *data = i2c_get_clientdata(client); | |
510 | int temp = simple_strtol(buf, NULL, 10); | |
511 | u8 reg; | |
512 | ||
513 | mutex_lock(&data->lock); | |
514 | data->force_pwm_max = temp; | |
515 | reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
516 | if (temp) | |
517 | reg |= ADT7470_FSPD_MASK; | |
518 | else | |
519 | reg &= ~ADT7470_FSPD_MASK; | |
520 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg); | |
521 | mutex_unlock(&data->lock); | |
522 | ||
523 | return count; | |
524 | } | |
525 | ||
526 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
527 | char *buf) | |
528 | { | |
529 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
530 | struct adt7470_data *data = adt7470_update_device(dev); | |
531 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
532 | } | |
533 | ||
534 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
535 | const char *buf, size_t count) | |
536 | { | |
537 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
538 | struct i2c_client *client = to_i2c_client(dev); | |
539 | struct adt7470_data *data = i2c_get_clientdata(client); | |
540 | int temp = simple_strtol(buf, NULL, 10); | |
541 | ||
542 | mutex_lock(&data->lock); | |
543 | data->pwm[attr->index] = temp; | |
544 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp); | |
545 | mutex_unlock(&data->lock); | |
546 | ||
547 | return count; | |
548 | } | |
549 | ||
550 | static ssize_t show_pwm_max(struct device *dev, | |
551 | struct device_attribute *devattr, | |
552 | char *buf) | |
553 | { | |
554 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
555 | struct adt7470_data *data = adt7470_update_device(dev); | |
556 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
557 | } | |
558 | ||
559 | static ssize_t set_pwm_max(struct device *dev, | |
560 | struct device_attribute *devattr, | |
561 | const char *buf, | |
562 | size_t count) | |
563 | { | |
564 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
565 | struct i2c_client *client = to_i2c_client(dev); | |
566 | struct adt7470_data *data = i2c_get_clientdata(client); | |
567 | int temp = simple_strtol(buf, NULL, 10); | |
568 | ||
569 | mutex_lock(&data->lock); | |
570 | data->pwm_max[attr->index] = temp; | |
571 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index), | |
572 | temp); | |
573 | mutex_unlock(&data->lock); | |
574 | ||
575 | return count; | |
576 | } | |
577 | ||
578 | static ssize_t show_pwm_min(struct device *dev, | |
579 | struct device_attribute *devattr, | |
580 | char *buf) | |
581 | { | |
582 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
583 | struct adt7470_data *data = adt7470_update_device(dev); | |
584 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
585 | } | |
586 | ||
587 | static ssize_t set_pwm_min(struct device *dev, | |
588 | struct device_attribute *devattr, | |
589 | const char *buf, | |
590 | size_t count) | |
591 | { | |
592 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
593 | struct i2c_client *client = to_i2c_client(dev); | |
594 | struct adt7470_data *data = i2c_get_clientdata(client); | |
595 | int temp = simple_strtol(buf, NULL, 10); | |
596 | ||
597 | mutex_lock(&data->lock); | |
598 | data->pwm_min[attr->index] = temp; | |
599 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index), | |
600 | temp); | |
601 | mutex_unlock(&data->lock); | |
602 | ||
603 | return count; | |
604 | } | |
605 | ||
606 | static ssize_t show_pwm_tmax(struct device *dev, | |
607 | struct device_attribute *devattr, | |
608 | char *buf) | |
609 | { | |
610 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
611 | struct adt7470_data *data = adt7470_update_device(dev); | |
612 | /* the datasheet says that tmax = tmin + 20C */ | |
613 | return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index])); | |
614 | } | |
615 | ||
616 | static ssize_t show_pwm_tmin(struct device *dev, | |
617 | struct device_attribute *devattr, | |
618 | char *buf) | |
619 | { | |
620 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
621 | struct adt7470_data *data = adt7470_update_device(dev); | |
622 | return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]); | |
623 | } | |
624 | ||
625 | static ssize_t set_pwm_tmin(struct device *dev, | |
626 | struct device_attribute *devattr, | |
627 | const char *buf, | |
628 | size_t count) | |
629 | { | |
630 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
631 | struct i2c_client *client = to_i2c_client(dev); | |
632 | struct adt7470_data *data = i2c_get_clientdata(client); | |
633 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
634 | ||
635 | mutex_lock(&data->lock); | |
636 | data->pwm_tmin[attr->index] = temp; | |
637 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index), | |
638 | temp); | |
639 | mutex_unlock(&data->lock); | |
640 | ||
641 | return count; | |
642 | } | |
643 | ||
644 | static ssize_t show_pwm_auto(struct device *dev, | |
645 | struct device_attribute *devattr, | |
646 | char *buf) | |
647 | { | |
648 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
649 | struct adt7470_data *data = adt7470_update_device(dev); | |
650 | return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]); | |
651 | } | |
652 | ||
653 | static ssize_t set_pwm_auto(struct device *dev, | |
654 | struct device_attribute *devattr, | |
655 | const char *buf, | |
656 | size_t count) | |
657 | { | |
658 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
659 | struct i2c_client *client = to_i2c_client(dev); | |
660 | struct adt7470_data *data = i2c_get_clientdata(client); | |
661 | int temp = simple_strtol(buf, NULL, 10); | |
662 | int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); | |
663 | int pwm_auto_reg_mask; | |
664 | u8 reg; | |
665 | ||
666 | if (attr->index % 2) | |
667 | pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK; | |
668 | else | |
669 | pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK; | |
670 | ||
671 | if (temp != 2 && temp != 1) | |
672 | return -EINVAL; | |
673 | temp--; | |
674 | ||
675 | mutex_lock(&data->lock); | |
676 | data->pwm_automatic[attr->index] = temp; | |
677 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
678 | if (temp) | |
679 | reg |= pwm_auto_reg_mask; | |
680 | else | |
681 | reg &= ~pwm_auto_reg_mask; | |
682 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
683 | mutex_unlock(&data->lock); | |
684 | ||
685 | return count; | |
686 | } | |
687 | ||
688 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
689 | struct device_attribute *devattr, | |
690 | char *buf) | |
691 | { | |
692 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
693 | struct adt7470_data *data = adt7470_update_device(dev); | |
694 | u8 ctrl = data->pwm_auto_temp[attr->index]; | |
695 | ||
696 | if (ctrl) | |
697 | return sprintf(buf, "%d\n", 1 << (ctrl - 1)); | |
698 | else | |
699 | return sprintf(buf, "%d\n", ADT7470_PWM_ALL_TEMPS); | |
700 | } | |
701 | ||
702 | static int cvt_auto_temp(int input) | |
703 | { | |
704 | if (input == ADT7470_PWM_ALL_TEMPS) | |
705 | return 0; | |
ce9c2f44 | 706 | if (input < 1 || !is_power_of_2(input)) |
6f9703d0 DW |
707 | return -EINVAL; |
708 | return ilog2(input) + 1; | |
709 | } | |
710 | ||
711 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
712 | struct device_attribute *devattr, | |
713 | const char *buf, | |
714 | size_t count) | |
715 | { | |
716 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
717 | struct i2c_client *client = to_i2c_client(dev); | |
718 | struct adt7470_data *data = i2c_get_clientdata(client); | |
719 | int temp = cvt_auto_temp(simple_strtol(buf, NULL, 10)); | |
720 | int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); | |
721 | u8 reg; | |
722 | ||
723 | if (temp < 0) | |
724 | return temp; | |
725 | ||
726 | mutex_lock(&data->lock); | |
727 | data->pwm_automatic[attr->index] = temp; | |
728 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
729 | ||
730 | if (!(attr->index % 2)) { | |
731 | reg &= 0xF; | |
732 | reg |= (temp << 4) & 0xF0; | |
733 | } else { | |
734 | reg &= 0xF0; | |
735 | reg |= temp & 0xF; | |
736 | } | |
737 | ||
738 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
739 | mutex_unlock(&data->lock); | |
740 | ||
741 | return count; | |
742 | } | |
743 | ||
fe03f28c DW |
744 | static ssize_t show_alarm(struct device *dev, |
745 | struct device_attribute *devattr, | |
746 | char *buf) | |
747 | { | |
748 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
749 | struct adt7470_data *data = adt7470_update_device(dev); | |
750 | ||
751 | if (data->alarm & attr->index) | |
752 | return sprintf(buf, "1\n"); | |
753 | else | |
754 | return sprintf(buf, "0\n"); | |
755 | } | |
756 | ||
757 | static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL); | |
6f9703d0 DW |
758 | |
759 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
760 | set_temp_max, 0); | |
761 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
762 | set_temp_max, 1); | |
763 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
764 | set_temp_max, 2); | |
765 | static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max, | |
766 | set_temp_max, 3); | |
767 | static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max, | |
768 | set_temp_max, 4); | |
769 | static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max, | |
770 | set_temp_max, 5); | |
771 | static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max, | |
772 | set_temp_max, 6); | |
773 | static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max, | |
774 | set_temp_max, 7); | |
775 | static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max, | |
776 | set_temp_max, 8); | |
777 | static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max, | |
778 | set_temp_max, 9); | |
779 | ||
780 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
781 | set_temp_min, 0); | |
782 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
783 | set_temp_min, 1); | |
784 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
785 | set_temp_min, 2); | |
786 | static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min, | |
787 | set_temp_min, 3); | |
788 | static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min, | |
789 | set_temp_min, 4); | |
790 | static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min, | |
791 | set_temp_min, 5); | |
792 | static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min, | |
793 | set_temp_min, 6); | |
794 | static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min, | |
795 | set_temp_min, 7); | |
796 | static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min, | |
797 | set_temp_min, 8); | |
798 | static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min, | |
799 | set_temp_min, 9); | |
800 | ||
801 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
802 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
803 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
804 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); | |
805 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); | |
806 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); | |
807 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); | |
808 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); | |
809 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8); | |
810 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9); | |
811 | ||
fe03f28c DW |
812 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, |
813 | ADT7470_R1T_ALARM); | |
814 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
815 | ADT7470_R2T_ALARM); | |
816 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
817 | ADT7470_R3T_ALARM); | |
818 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, | |
819 | ADT7470_R4T_ALARM); | |
820 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, | |
821 | ADT7470_R5T_ALARM); | |
822 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, | |
823 | ADT7470_R6T_ALARM); | |
824 | static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL, | |
825 | ADT7470_R7T_ALARM); | |
826 | static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL, | |
827 | ALARM2(ADT7470_R8T_ALARM)); | |
828 | static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL, | |
829 | ALARM2(ADT7470_R9T_ALARM)); | |
830 | static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL, | |
831 | ALARM2(ADT7470_R10T_ALARM)); | |
832 | ||
6f9703d0 DW |
833 | static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max, |
834 | set_fan_max, 0); | |
835 | static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max, | |
836 | set_fan_max, 1); | |
837 | static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max, | |
838 | set_fan_max, 2); | |
839 | static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max, | |
840 | set_fan_max, 3); | |
841 | ||
842 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
843 | set_fan_min, 0); | |
844 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
845 | set_fan_min, 1); | |
846 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
847 | set_fan_min, 2); | |
848 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
849 | set_fan_min, 3); | |
850 | ||
851 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
852 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
853 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
854 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
855 | ||
fe03f28c DW |
856 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, |
857 | ALARM2(ADT7470_FAN1_ALARM)); | |
858 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
859 | ALARM2(ADT7470_FAN2_ALARM)); | |
860 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
861 | ALARM2(ADT7470_FAN3_ALARM)); | |
862 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
863 | ALARM2(ADT7470_FAN4_ALARM)); | |
864 | ||
6f9703d0 DW |
865 | static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO, |
866 | show_force_pwm_max, set_force_pwm_max, 0); | |
867 | ||
868 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
869 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
870 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
871 | static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); | |
872 | ||
873 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
874 | show_pwm_min, set_pwm_min, 0); | |
875 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
876 | show_pwm_min, set_pwm_min, 1); | |
877 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
878 | show_pwm_min, set_pwm_min, 2); | |
879 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
880 | show_pwm_min, set_pwm_min, 3); | |
881 | ||
882 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
883 | show_pwm_max, set_pwm_max, 0); | |
884 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
885 | show_pwm_max, set_pwm_max, 1); | |
886 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
887 | show_pwm_max, set_pwm_max, 2); | |
888 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
889 | show_pwm_max, set_pwm_max, 3); | |
890 | ||
891 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
892 | show_pwm_tmin, set_pwm_tmin, 0); | |
893 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
894 | show_pwm_tmin, set_pwm_tmin, 1); | |
895 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
896 | show_pwm_tmin, set_pwm_tmin, 2); | |
897 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, | |
898 | show_pwm_tmin, set_pwm_tmin, 3); | |
899 | ||
900 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
901 | NULL, 0); | |
902 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
903 | NULL, 1); | |
904 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
905 | NULL, 2); | |
906 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
907 | NULL, 3); | |
908 | ||
909 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
910 | set_pwm_auto, 0); | |
911 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
912 | set_pwm_auto, 1); | |
913 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
914 | set_pwm_auto, 2); | |
915 | static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
916 | set_pwm_auto, 3); | |
917 | ||
918 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
919 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
920 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
921 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
922 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
923 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
924 | static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, | |
925 | show_pwm_auto_temp, set_pwm_auto_temp, 3); | |
926 | ||
927 | static struct attribute *adt7470_attr[] = | |
928 | { | |
fe03f28c | 929 | &dev_attr_alarm_mask.attr, |
6f9703d0 DW |
930 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
931 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
932 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
933 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
934 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
935 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
936 | &sensor_dev_attr_temp7_max.dev_attr.attr, | |
937 | &sensor_dev_attr_temp8_max.dev_attr.attr, | |
938 | &sensor_dev_attr_temp9_max.dev_attr.attr, | |
939 | &sensor_dev_attr_temp10_max.dev_attr.attr, | |
940 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
941 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
942 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
943 | &sensor_dev_attr_temp4_min.dev_attr.attr, | |
944 | &sensor_dev_attr_temp5_min.dev_attr.attr, | |
945 | &sensor_dev_attr_temp6_min.dev_attr.attr, | |
946 | &sensor_dev_attr_temp7_min.dev_attr.attr, | |
947 | &sensor_dev_attr_temp8_min.dev_attr.attr, | |
948 | &sensor_dev_attr_temp9_min.dev_attr.attr, | |
949 | &sensor_dev_attr_temp10_min.dev_attr.attr, | |
950 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
951 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
952 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
953 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
954 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
955 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
956 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
957 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
958 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
959 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
fe03f28c DW |
960 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
961 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
962 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
963 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, | |
964 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, | |
965 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, | |
966 | &sensor_dev_attr_temp7_alarm.dev_attr.attr, | |
967 | &sensor_dev_attr_temp8_alarm.dev_attr.attr, | |
968 | &sensor_dev_attr_temp9_alarm.dev_attr.attr, | |
969 | &sensor_dev_attr_temp10_alarm.dev_attr.attr, | |
6f9703d0 DW |
970 | &sensor_dev_attr_fan1_max.dev_attr.attr, |
971 | &sensor_dev_attr_fan2_max.dev_attr.attr, | |
972 | &sensor_dev_attr_fan3_max.dev_attr.attr, | |
973 | &sensor_dev_attr_fan4_max.dev_attr.attr, | |
974 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
975 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
976 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
977 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
978 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
979 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
980 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
981 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
fe03f28c DW |
982 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
983 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
984 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
985 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
6f9703d0 DW |
986 | &sensor_dev_attr_force_pwm_max.dev_attr.attr, |
987 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
988 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
989 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
990 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
991 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
992 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
993 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
994 | &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, | |
995 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
996 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
997 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
998 | &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, | |
999 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1000 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1001 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1002 | &sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr, | |
1003 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1004 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1005 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1006 | &sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr, | |
1007 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1008 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1009 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1010 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, | |
1011 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1012 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1013 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1014 | &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, | |
1015 | NULL | |
1016 | }; | |
1017 | ||
008f1ca5 JD |
1018 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1019 | static int adt7470_detect(struct i2c_client *client, int kind, | |
1020 | struct i2c_board_info *info) | |
6f9703d0 | 1021 | { |
008f1ca5 | 1022 | struct i2c_adapter *adapter = client->adapter; |
6f9703d0 DW |
1023 | |
1024 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
008f1ca5 | 1025 | return -ENODEV; |
6f9703d0 DW |
1026 | |
1027 | if (kind <= 0) { | |
1028 | int vendor, device, revision; | |
1029 | ||
1030 | vendor = i2c_smbus_read_byte_data(client, ADT7470_REG_VENDOR); | |
008f1ca5 JD |
1031 | if (vendor != ADT7470_VENDOR) |
1032 | return -ENODEV; | |
6f9703d0 DW |
1033 | |
1034 | device = i2c_smbus_read_byte_data(client, ADT7470_REG_DEVICE); | |
008f1ca5 JD |
1035 | if (device != ADT7470_DEVICE) |
1036 | return -ENODEV; | |
6f9703d0 DW |
1037 | |
1038 | revision = i2c_smbus_read_byte_data(client, | |
1039 | ADT7470_REG_REVISION); | |
008f1ca5 JD |
1040 | if (revision != ADT7470_REVISION) |
1041 | return -ENODEV; | |
6f9703d0 DW |
1042 | } else |
1043 | dev_dbg(&adapter->dev, "detection forced\n"); | |
1044 | ||
008f1ca5 | 1045 | strlcpy(info->type, "adt7470", I2C_NAME_SIZE); |
6f9703d0 | 1046 | |
008f1ca5 JD |
1047 | return 0; |
1048 | } | |
1049 | ||
1050 | static int adt7470_probe(struct i2c_client *client, | |
1051 | const struct i2c_device_id *id) | |
1052 | { | |
1053 | struct adt7470_data *data; | |
1054 | int err; | |
1055 | ||
1056 | data = kzalloc(sizeof(struct adt7470_data), GFP_KERNEL); | |
1057 | if (!data) { | |
1058 | err = -ENOMEM; | |
1059 | goto exit; | |
1060 | } | |
1061 | ||
1062 | i2c_set_clientdata(client, data); | |
1063 | mutex_init(&data->lock); | |
6f9703d0 DW |
1064 | |
1065 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1066 | ||
1067 | /* Initialize the ADT7470 chip */ | |
1068 | adt7470_init_client(client); | |
1069 | ||
1070 | /* Register sysfs hooks */ | |
1071 | data->attrs.attrs = adt7470_attr; | |
1072 | if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs))) | |
008f1ca5 | 1073 | goto exit_free; |
6f9703d0 | 1074 | |
1beeffe4 TJ |
1075 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1076 | if (IS_ERR(data->hwmon_dev)) { | |
1077 | err = PTR_ERR(data->hwmon_dev); | |
6f9703d0 DW |
1078 | goto exit_remove; |
1079 | } | |
1080 | ||
1081 | return 0; | |
1082 | ||
1083 | exit_remove: | |
1084 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
6f9703d0 DW |
1085 | exit_free: |
1086 | kfree(data); | |
1087 | exit: | |
1088 | return err; | |
1089 | } | |
1090 | ||
008f1ca5 | 1091 | static int adt7470_remove(struct i2c_client *client) |
6f9703d0 DW |
1092 | { |
1093 | struct adt7470_data *data = i2c_get_clientdata(client); | |
1094 | ||
1beeffe4 | 1095 | hwmon_device_unregister(data->hwmon_dev); |
6f9703d0 | 1096 | sysfs_remove_group(&client->dev.kobj, &data->attrs); |
6f9703d0 DW |
1097 | kfree(data); |
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | static int __init adt7470_init(void) | |
1102 | { | |
1103 | return i2c_add_driver(&adt7470_driver); | |
1104 | } | |
1105 | ||
1106 | static void __exit adt7470_exit(void) | |
1107 | { | |
1108 | i2c_del_driver(&adt7470_driver); | |
1109 | } | |
1110 | ||
1111 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1112 | MODULE_DESCRIPTION("ADT7470 driver"); | |
1113 | MODULE_LICENSE("GPL"); | |
1114 | ||
1115 | module_init(adt7470_init); | |
1116 | module_exit(adt7470_exit); |