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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 | |
2e75a4b7 | 77 | #define ADT7470_PWM_AUTO_MASK 0xC0 |
6f9703d0 DW |
78 | #define ADT7470_REG_PWM34_CFG 0x69 |
79 | #define ADT7470_PWM3_AUTO_MASK 0x40 | |
80 | #define ADT7470_PWM4_AUTO_MASK 0x80 | |
81 | #define ADT7470_REG_PWM_MIN_BASE_ADDR 0x6A | |
82 | #define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D | |
83 | #define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E | |
84 | #define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR 0x71 | |
85 | #define ADT7470_REG_ACOUSTICS12 0x75 | |
86 | #define ADT7470_REG_ACOUSTICS34 0x76 | |
87 | #define ADT7470_REG_DEVICE 0x3D | |
88 | #define ADT7470_REG_VENDOR 0x3E | |
89 | #define ADT7470_REG_REVISION 0x3F | |
90 | #define ADT7470_REG_ALARM1_MASK 0x72 | |
91 | #define ADT7470_REG_ALARM2_MASK 0x73 | |
92 | #define ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR 0x7C | |
93 | #define ADT7470_REG_PWM_AUTO_TEMP_MAX_ADDR 0x7D | |
94 | #define ADT7470_REG_MAX_ADDR 0x81 | |
95 | ||
96 | #define ADT7470_TEMP_COUNT 10 | |
97 | #define ADT7470_TEMP_REG(x) (ADT7470_REG_TEMP_BASE_ADDR + (x)) | |
98 | #define ADT7470_TEMP_MIN_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
99 | #define ADT7470_TEMP_MAX_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + \ | |
100 | ((x) * 2) + 1) | |
101 | ||
102 | #define ADT7470_FAN_COUNT 4 | |
103 | #define ADT7470_REG_FAN(x) (ADT7470_REG_FAN_BASE_ADDR + ((x) * 2)) | |
104 | #define ADT7470_REG_FAN_MIN(x) (ADT7470_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
105 | #define ADT7470_REG_FAN_MAX(x) (ADT7470_REG_FAN_MAX_BASE_ADDR + ((x) * 2)) | |
106 | ||
107 | #define ADT7470_PWM_COUNT 4 | |
108 | #define ADT7470_REG_PWM(x) (ADT7470_REG_PWM_BASE_ADDR + (x)) | |
109 | #define ADT7470_REG_PWM_MAX(x) (ADT7470_REG_PWM_MAX_BASE_ADDR + (x)) | |
110 | #define ADT7470_REG_PWM_MIN(x) (ADT7470_REG_PWM_MIN_BASE_ADDR + (x)) | |
111 | #define ADT7470_REG_PWM_TMIN(x) (ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) | |
112 | #define ADT7470_REG_PWM_CFG(x) (ADT7470_REG_PWM_CFG_BASE_ADDR + ((x) / 2)) | |
113 | #define ADT7470_REG_PWM_AUTO_TEMP(x) (ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR + \ | |
114 | ((x) / 2)) | |
115 | ||
fe03f28c DW |
116 | #define ALARM2(x) ((x) << 8) |
117 | ||
6f9703d0 DW |
118 | #define ADT7470_VENDOR 0x41 |
119 | #define ADT7470_DEVICE 0x70 | |
120 | /* datasheet only mentions a revision 2 */ | |
121 | #define ADT7470_REVISION 0x02 | |
122 | ||
123 | /* "all temps" according to hwmon sysfs interface spec */ | |
124 | #define ADT7470_PWM_ALL_TEMPS 0x3FF | |
125 | ||
126 | /* How often do we reread sensors values? (In jiffies) */ | |
127 | #define SENSOR_REFRESH_INTERVAL (5 * HZ) | |
128 | ||
129 | /* How often do we reread sensor limit values? (In jiffies) */ | |
130 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
131 | ||
132 | /* sleep 1s while gathering temperature data */ | |
133 | #define TEMP_COLLECTION_TIME 1000 | |
134 | ||
6f9703d0 DW |
135 | /* datasheet says to divide this number by the fan reading to get fan rpm */ |
136 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
137 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
138 | #define FAN_PERIOD_INVALID 65535 | |
139 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
140 | ||
141 | struct adt7470_data { | |
1beeffe4 | 142 | struct device *hwmon_dev; |
6f9703d0 DW |
143 | struct attribute_group attrs; |
144 | struct mutex lock; | |
145 | char sensors_valid; | |
146 | char limits_valid; | |
147 | unsigned long sensors_last_updated; /* In jiffies */ | |
148 | unsigned long limits_last_updated; /* In jiffies */ | |
149 | ||
150 | s8 temp[ADT7470_TEMP_COUNT]; | |
151 | s8 temp_min[ADT7470_TEMP_COUNT]; | |
152 | s8 temp_max[ADT7470_TEMP_COUNT]; | |
153 | u16 fan[ADT7470_FAN_COUNT]; | |
154 | u16 fan_min[ADT7470_FAN_COUNT]; | |
155 | u16 fan_max[ADT7470_FAN_COUNT]; | |
fe03f28c DW |
156 | u16 alarm; |
157 | u16 alarms_mask; | |
6f9703d0 DW |
158 | u8 force_pwm_max; |
159 | u8 pwm[ADT7470_PWM_COUNT]; | |
160 | u8 pwm_max[ADT7470_PWM_COUNT]; | |
161 | u8 pwm_automatic[ADT7470_PWM_COUNT]; | |
162 | u8 pwm_min[ADT7470_PWM_COUNT]; | |
163 | s8 pwm_tmin[ADT7470_PWM_COUNT]; | |
164 | u8 pwm_auto_temp[ADT7470_PWM_COUNT]; | |
165 | }; | |
166 | ||
008f1ca5 JD |
167 | static int adt7470_probe(struct i2c_client *client, |
168 | const struct i2c_device_id *id); | |
169 | static int adt7470_detect(struct i2c_client *client, int kind, | |
170 | struct i2c_board_info *info); | |
171 | static int adt7470_remove(struct i2c_client *client); | |
172 | ||
173 | static const struct i2c_device_id adt7470_id[] = { | |
174 | { "adt7470", adt7470 }, | |
175 | { } | |
176 | }; | |
177 | MODULE_DEVICE_TABLE(i2c, adt7470_id); | |
6f9703d0 DW |
178 | |
179 | static struct i2c_driver adt7470_driver = { | |
008f1ca5 | 180 | .class = I2C_CLASS_HWMON, |
6f9703d0 DW |
181 | .driver = { |
182 | .name = "adt7470", | |
183 | }, | |
008f1ca5 JD |
184 | .probe = adt7470_probe, |
185 | .remove = adt7470_remove, | |
186 | .id_table = adt7470_id, | |
187 | .detect = adt7470_detect, | |
188 | .address_data = &addr_data, | |
6f9703d0 DW |
189 | }; |
190 | ||
191 | /* | |
192 | * 16-bit registers on the ADT7470 are low-byte first. The data sheet says | |
193 | * that the low byte must be read before the high byte. | |
194 | */ | |
195 | static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg) | |
196 | { | |
197 | u16 foo; | |
198 | foo = i2c_smbus_read_byte_data(client, reg); | |
199 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
200 | return foo; | |
201 | } | |
202 | ||
203 | static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg, | |
204 | u16 value) | |
205 | { | |
206 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
207 | && i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
208 | } | |
209 | ||
210 | static void adt7470_init_client(struct i2c_client *client) | |
211 | { | |
212 | int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
213 | ||
214 | if (reg < 0) { | |
215 | dev_err(&client->dev, "cannot read configuration register\n"); | |
216 | } else { | |
217 | /* start monitoring (and do a self-test) */ | |
218 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); | |
219 | } | |
220 | } | |
221 | ||
222 | static struct adt7470_data *adt7470_update_device(struct device *dev) | |
223 | { | |
224 | struct i2c_client *client = to_i2c_client(dev); | |
225 | struct adt7470_data *data = i2c_get_clientdata(client); | |
226 | unsigned long local_jiffies = jiffies; | |
2e75a4b7 | 227 | u8 cfg, pwm[4], pwm_cfg[2]; |
6f9703d0 DW |
228 | int i; |
229 | ||
230 | mutex_lock(&data->lock); | |
231 | if (time_before(local_jiffies, data->sensors_last_updated + | |
232 | SENSOR_REFRESH_INTERVAL) | |
233 | && data->sensors_valid) | |
234 | goto no_sensor_update; | |
235 | ||
2e75a4b7 DW |
236 | /* save pwm[1-4] config register */ |
237 | pwm_cfg[0] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(0)); | |
238 | pwm_cfg[1] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(2)); | |
239 | ||
240 | /* set manual pwm to whatever it is set to now */ | |
241 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
242 | pwm[i] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM(i)); | |
243 | ||
244 | /* put pwm in manual mode */ | |
245 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), | |
246 | pwm_cfg[0] & ~(ADT7470_PWM_AUTO_MASK)); | |
247 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), | |
248 | pwm_cfg[1] & ~(ADT7470_PWM_AUTO_MASK)); | |
249 | ||
250 | /* write pwm control to whatever it was */ | |
251 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
252 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(i), pwm[i]); | |
253 | ||
6f9703d0 DW |
254 | /* start reading temperature sensors */ |
255 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
256 | cfg |= 0x80; | |
257 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
258 | ||
259 | /* | |
260 | * Delay is 200ms * number of tmp05 sensors. Too bad | |
261 | * there's no way to figure out how many are connected. | |
262 | * For now, assume 1s will work. | |
263 | */ | |
264 | msleep(TEMP_COLLECTION_TIME); | |
265 | ||
266 | /* done reading temperature sensors */ | |
267 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
268 | cfg &= ~0x80; | |
269 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
270 | ||
2e75a4b7 DW |
271 | /* restore pwm[1-4] config registers */ |
272 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]); | |
273 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]); | |
274 | ||
6f9703d0 DW |
275 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) |
276 | data->temp[i] = i2c_smbus_read_byte_data(client, | |
277 | ADT7470_TEMP_REG(i)); | |
278 | ||
279 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
280 | data->fan[i] = adt7470_read_word_data(client, | |
281 | ADT7470_REG_FAN(i)); | |
282 | ||
283 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
284 | int reg; | |
285 | int reg_mask; | |
286 | ||
287 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
288 | ADT7470_REG_PWM(i)); | |
289 | ||
290 | if (i % 2) | |
291 | reg_mask = ADT7470_PWM2_AUTO_MASK; | |
292 | else | |
293 | reg_mask = ADT7470_PWM1_AUTO_MASK; | |
294 | ||
295 | reg = ADT7470_REG_PWM_CFG(i); | |
296 | if (i2c_smbus_read_byte_data(client, reg) & reg_mask) | |
297 | data->pwm_automatic[i] = 1; | |
298 | else | |
299 | data->pwm_automatic[i] = 0; | |
300 | ||
301 | reg = ADT7470_REG_PWM_AUTO_TEMP(i); | |
302 | cfg = i2c_smbus_read_byte_data(client, reg); | |
303 | if (!(i % 2)) | |
304 | data->pwm_auto_temp[i] = cfg >> 4; | |
305 | else | |
306 | data->pwm_auto_temp[i] = cfg & 0xF; | |
307 | } | |
308 | ||
309 | if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) & | |
310 | ADT7470_FSPD_MASK) | |
311 | data->force_pwm_max = 1; | |
312 | else | |
313 | data->force_pwm_max = 0; | |
314 | ||
fe03f28c DW |
315 | data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1); |
316 | if (data->alarm & ADT7470_OOL_ALARM) | |
317 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
318 | ADT7470_REG_ALARM2)); | |
6f9703d0 DW |
319 | data->alarms_mask = adt7470_read_word_data(client, |
320 | ADT7470_REG_ALARM1_MASK); | |
321 | ||
322 | data->sensors_last_updated = local_jiffies; | |
323 | data->sensors_valid = 1; | |
324 | ||
325 | no_sensor_update: | |
326 | if (time_before(local_jiffies, data->limits_last_updated + | |
327 | LIMIT_REFRESH_INTERVAL) | |
328 | && data->limits_valid) | |
329 | goto out; | |
330 | ||
331 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
332 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
333 | ADT7470_TEMP_MIN_REG(i)); | |
334 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
335 | ADT7470_TEMP_MAX_REG(i)); | |
336 | } | |
337 | ||
338 | for (i = 0; i < ADT7470_FAN_COUNT; i++) { | |
339 | data->fan_min[i] = adt7470_read_word_data(client, | |
340 | ADT7470_REG_FAN_MIN(i)); | |
341 | data->fan_max[i] = adt7470_read_word_data(client, | |
342 | ADT7470_REG_FAN_MAX(i)); | |
343 | } | |
344 | ||
345 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
346 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
347 | ADT7470_REG_PWM_MAX(i)); | |
348 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
349 | ADT7470_REG_PWM_MIN(i)); | |
350 | data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, | |
351 | ADT7470_REG_PWM_TMIN(i)); | |
352 | } | |
353 | ||
354 | data->limits_last_updated = local_jiffies; | |
355 | data->limits_valid = 1; | |
356 | ||
357 | out: | |
358 | mutex_unlock(&data->lock); | |
359 | return data; | |
360 | } | |
361 | ||
362 | static ssize_t show_temp_min(struct device *dev, | |
363 | struct device_attribute *devattr, | |
364 | char *buf) | |
365 | { | |
366 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
367 | struct adt7470_data *data = adt7470_update_device(dev); | |
368 | return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]); | |
369 | } | |
370 | ||
371 | static ssize_t set_temp_min(struct device *dev, | |
372 | struct device_attribute *devattr, | |
373 | const char *buf, | |
374 | size_t count) | |
375 | { | |
376 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
377 | struct i2c_client *client = to_i2c_client(dev); | |
378 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
379 | long temp; |
380 | ||
381 | if (strict_strtol(buf, 10, &temp)) | |
382 | return -EINVAL; | |
383 | ||
8f8c1fb0 | 384 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
05a9bd46 | 385 | temp = SENSORS_LIMIT(temp, 0, 255); |
6f9703d0 DW |
386 | |
387 | mutex_lock(&data->lock); | |
388 | data->temp_min[attr->index] = temp; | |
389 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index), | |
390 | temp); | |
391 | mutex_unlock(&data->lock); | |
392 | ||
393 | return count; | |
394 | } | |
395 | ||
396 | static ssize_t show_temp_max(struct device *dev, | |
397 | struct device_attribute *devattr, | |
398 | char *buf) | |
399 | { | |
400 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
401 | struct adt7470_data *data = adt7470_update_device(dev); | |
402 | return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]); | |
403 | } | |
404 | ||
405 | static ssize_t set_temp_max(struct device *dev, | |
406 | struct device_attribute *devattr, | |
407 | const char *buf, | |
408 | size_t count) | |
409 | { | |
410 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
411 | struct i2c_client *client = to_i2c_client(dev); | |
412 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
413 | long temp; |
414 | ||
415 | if (strict_strtol(buf, 10, &temp)) | |
416 | return -EINVAL; | |
417 | ||
8f8c1fb0 | 418 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
05a9bd46 | 419 | temp = SENSORS_LIMIT(temp, 0, 255); |
6f9703d0 DW |
420 | |
421 | mutex_lock(&data->lock); | |
422 | data->temp_max[attr->index] = temp; | |
423 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index), | |
424 | temp); | |
425 | mutex_unlock(&data->lock); | |
426 | ||
427 | return count; | |
428 | } | |
429 | ||
430 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
431 | char *buf) | |
432 | { | |
433 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
434 | struct adt7470_data *data = adt7470_update_device(dev); | |
435 | return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]); | |
436 | } | |
437 | ||
fe03f28c | 438 | static ssize_t show_alarm_mask(struct device *dev, |
6f9703d0 DW |
439 | struct device_attribute *devattr, |
440 | char *buf) | |
441 | { | |
6f9703d0 DW |
442 | struct adt7470_data *data = adt7470_update_device(dev); |
443 | ||
fe03f28c | 444 | return sprintf(buf, "%x\n", data->alarms_mask); |
6f9703d0 DW |
445 | } |
446 | ||
447 | static ssize_t show_fan_max(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_max[attr->index])) | |
455 | return sprintf(buf, "%d\n", | |
456 | FAN_PERIOD_TO_RPM(data->fan_max[attr->index])); | |
457 | else | |
458 | return sprintf(buf, "0\n"); | |
459 | } | |
460 | ||
461 | static ssize_t set_fan_max(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); | |
05a9bd46 | 468 | long temp; |
6f9703d0 | 469 | |
05a9bd46 | 470 | if (strict_strtol(buf, 10, &temp) || !temp) |
6f9703d0 | 471 | return -EINVAL; |
05a9bd46 | 472 | |
6f9703d0 | 473 | temp = FAN_RPM_TO_PERIOD(temp); |
05a9bd46 | 474 | temp = SENSORS_LIMIT(temp, 1, 65534); |
6f9703d0 DW |
475 | |
476 | mutex_lock(&data->lock); | |
477 | data->fan_max[attr->index] = temp; | |
478 | adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp); | |
479 | mutex_unlock(&data->lock); | |
480 | ||
481 | return count; | |
482 | } | |
483 | ||
484 | static ssize_t show_fan_min(struct device *dev, | |
485 | struct device_attribute *devattr, | |
486 | char *buf) | |
487 | { | |
488 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
489 | struct adt7470_data *data = adt7470_update_device(dev); | |
490 | ||
491 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
492 | return sprintf(buf, "%d\n", | |
493 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
494 | else | |
495 | return sprintf(buf, "0\n"); | |
496 | } | |
497 | ||
498 | static ssize_t set_fan_min(struct device *dev, | |
499 | struct device_attribute *devattr, | |
500 | const char *buf, size_t count) | |
501 | { | |
502 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
503 | struct i2c_client *client = to_i2c_client(dev); | |
504 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 | 505 | long temp; |
6f9703d0 | 506 | |
05a9bd46 | 507 | if (strict_strtol(buf, 10, &temp) || !temp) |
6f9703d0 | 508 | return -EINVAL; |
05a9bd46 | 509 | |
6f9703d0 | 510 | temp = FAN_RPM_TO_PERIOD(temp); |
05a9bd46 | 511 | temp = SENSORS_LIMIT(temp, 1, 65534); |
6f9703d0 DW |
512 | |
513 | mutex_lock(&data->lock); | |
514 | data->fan_min[attr->index] = temp; | |
515 | adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp); | |
516 | mutex_unlock(&data->lock); | |
517 | ||
518 | return count; | |
519 | } | |
520 | ||
521 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
522 | char *buf) | |
523 | { | |
524 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
525 | struct adt7470_data *data = adt7470_update_device(dev); | |
526 | ||
527 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
528 | return sprintf(buf, "%d\n", | |
529 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
530 | else | |
531 | return sprintf(buf, "0\n"); | |
532 | } | |
533 | ||
534 | static ssize_t show_force_pwm_max(struct device *dev, | |
535 | struct device_attribute *devattr, | |
536 | char *buf) | |
537 | { | |
538 | struct adt7470_data *data = adt7470_update_device(dev); | |
539 | return sprintf(buf, "%d\n", data->force_pwm_max); | |
540 | } | |
541 | ||
542 | static ssize_t set_force_pwm_max(struct device *dev, | |
543 | struct device_attribute *devattr, | |
544 | const char *buf, | |
545 | size_t count) | |
546 | { | |
547 | struct i2c_client *client = to_i2c_client(dev); | |
548 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 | 549 | long temp; |
6f9703d0 DW |
550 | u8 reg; |
551 | ||
05a9bd46 DW |
552 | if (strict_strtol(buf, 10, &temp)) |
553 | return -EINVAL; | |
554 | ||
6f9703d0 DW |
555 | mutex_lock(&data->lock); |
556 | data->force_pwm_max = temp; | |
557 | reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
558 | if (temp) | |
559 | reg |= ADT7470_FSPD_MASK; | |
560 | else | |
561 | reg &= ~ADT7470_FSPD_MASK; | |
562 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg); | |
563 | mutex_unlock(&data->lock); | |
564 | ||
565 | return count; | |
566 | } | |
567 | ||
568 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
569 | char *buf) | |
570 | { | |
571 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
572 | struct adt7470_data *data = adt7470_update_device(dev); | |
573 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
574 | } | |
575 | ||
576 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
577 | const char *buf, size_t count) | |
578 | { | |
579 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
580 | struct i2c_client *client = to_i2c_client(dev); | |
581 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
582 | long temp; |
583 | ||
584 | if (strict_strtol(buf, 10, &temp)) | |
585 | return -EINVAL; | |
586 | ||
587 | temp = SENSORS_LIMIT(temp, 0, 255); | |
6f9703d0 DW |
588 | |
589 | mutex_lock(&data->lock); | |
590 | data->pwm[attr->index] = temp; | |
591 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp); | |
592 | mutex_unlock(&data->lock); | |
593 | ||
594 | return count; | |
595 | } | |
596 | ||
597 | static ssize_t show_pwm_max(struct device *dev, | |
598 | struct device_attribute *devattr, | |
599 | char *buf) | |
600 | { | |
601 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
602 | struct adt7470_data *data = adt7470_update_device(dev); | |
603 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
604 | } | |
605 | ||
606 | static ssize_t set_pwm_max(struct device *dev, | |
607 | struct device_attribute *devattr, | |
608 | const char *buf, | |
609 | size_t count) | |
610 | { | |
611 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
612 | struct i2c_client *client = to_i2c_client(dev); | |
613 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
614 | long temp; |
615 | ||
616 | if (strict_strtol(buf, 10, &temp)) | |
617 | return -EINVAL; | |
618 | ||
619 | temp = SENSORS_LIMIT(temp, 0, 255); | |
6f9703d0 DW |
620 | |
621 | mutex_lock(&data->lock); | |
622 | data->pwm_max[attr->index] = temp; | |
623 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index), | |
624 | temp); | |
625 | mutex_unlock(&data->lock); | |
626 | ||
627 | return count; | |
628 | } | |
629 | ||
630 | static ssize_t show_pwm_min(struct device *dev, | |
631 | struct device_attribute *devattr, | |
632 | char *buf) | |
633 | { | |
634 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
635 | struct adt7470_data *data = adt7470_update_device(dev); | |
636 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
637 | } | |
638 | ||
639 | static ssize_t set_pwm_min(struct device *dev, | |
640 | struct device_attribute *devattr, | |
641 | const char *buf, | |
642 | size_t count) | |
643 | { | |
644 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
645 | struct i2c_client *client = to_i2c_client(dev); | |
646 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
647 | long temp; |
648 | ||
649 | if (strict_strtol(buf, 10, &temp)) | |
650 | return -EINVAL; | |
651 | ||
652 | temp = SENSORS_LIMIT(temp, 0, 255); | |
6f9703d0 DW |
653 | |
654 | mutex_lock(&data->lock); | |
655 | data->pwm_min[attr->index] = temp; | |
656 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index), | |
657 | temp); | |
658 | mutex_unlock(&data->lock); | |
659 | ||
660 | return count; | |
661 | } | |
662 | ||
663 | static ssize_t show_pwm_tmax(struct device *dev, | |
664 | struct device_attribute *devattr, | |
665 | char *buf) | |
666 | { | |
667 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
668 | struct adt7470_data *data = adt7470_update_device(dev); | |
669 | /* the datasheet says that tmax = tmin + 20C */ | |
670 | return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index])); | |
671 | } | |
672 | ||
673 | static ssize_t show_pwm_tmin(struct device *dev, | |
674 | struct device_attribute *devattr, | |
675 | char *buf) | |
676 | { | |
677 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
678 | struct adt7470_data *data = adt7470_update_device(dev); | |
679 | return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]); | |
680 | } | |
681 | ||
682 | static ssize_t set_pwm_tmin(struct device *dev, | |
683 | struct device_attribute *devattr, | |
684 | const char *buf, | |
685 | size_t count) | |
686 | { | |
687 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
688 | struct i2c_client *client = to_i2c_client(dev); | |
689 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
690 | long temp; |
691 | ||
692 | if (strict_strtol(buf, 10, &temp)) | |
693 | return -EINVAL; | |
694 | ||
8f8c1fb0 | 695 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
05a9bd46 | 696 | temp = SENSORS_LIMIT(temp, 0, 255); |
6f9703d0 DW |
697 | |
698 | mutex_lock(&data->lock); | |
699 | data->pwm_tmin[attr->index] = temp; | |
700 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index), | |
701 | temp); | |
702 | mutex_unlock(&data->lock); | |
703 | ||
704 | return count; | |
705 | } | |
706 | ||
707 | static ssize_t show_pwm_auto(struct device *dev, | |
708 | struct device_attribute *devattr, | |
709 | char *buf) | |
710 | { | |
711 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
712 | struct adt7470_data *data = adt7470_update_device(dev); | |
713 | return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]); | |
714 | } | |
715 | ||
716 | static ssize_t set_pwm_auto(struct device *dev, | |
717 | struct device_attribute *devattr, | |
718 | const char *buf, | |
719 | size_t count) | |
720 | { | |
721 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
722 | struct i2c_client *client = to_i2c_client(dev); | |
723 | struct adt7470_data *data = i2c_get_clientdata(client); | |
6f9703d0 DW |
724 | int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); |
725 | int pwm_auto_reg_mask; | |
05a9bd46 | 726 | long temp; |
6f9703d0 DW |
727 | u8 reg; |
728 | ||
05a9bd46 DW |
729 | if (strict_strtol(buf, 10, &temp)) |
730 | return -EINVAL; | |
731 | ||
6f9703d0 DW |
732 | if (attr->index % 2) |
733 | pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK; | |
734 | else | |
735 | pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK; | |
736 | ||
737 | if (temp != 2 && temp != 1) | |
738 | return -EINVAL; | |
739 | temp--; | |
740 | ||
741 | mutex_lock(&data->lock); | |
742 | data->pwm_automatic[attr->index] = temp; | |
743 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
744 | if (temp) | |
745 | reg |= pwm_auto_reg_mask; | |
746 | else | |
747 | reg &= ~pwm_auto_reg_mask; | |
748 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
749 | mutex_unlock(&data->lock); | |
750 | ||
751 | return count; | |
752 | } | |
753 | ||
754 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
755 | struct device_attribute *devattr, | |
756 | char *buf) | |
757 | { | |
758 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
759 | struct adt7470_data *data = adt7470_update_device(dev); | |
760 | u8 ctrl = data->pwm_auto_temp[attr->index]; | |
761 | ||
762 | if (ctrl) | |
763 | return sprintf(buf, "%d\n", 1 << (ctrl - 1)); | |
764 | else | |
765 | return sprintf(buf, "%d\n", ADT7470_PWM_ALL_TEMPS); | |
766 | } | |
767 | ||
768 | static int cvt_auto_temp(int input) | |
769 | { | |
770 | if (input == ADT7470_PWM_ALL_TEMPS) | |
771 | return 0; | |
ce9c2f44 | 772 | if (input < 1 || !is_power_of_2(input)) |
6f9703d0 DW |
773 | return -EINVAL; |
774 | return ilog2(input) + 1; | |
775 | } | |
776 | ||
777 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
778 | struct device_attribute *devattr, | |
779 | const char *buf, | |
780 | size_t count) | |
781 | { | |
782 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
783 | struct i2c_client *client = to_i2c_client(dev); | |
784 | struct adt7470_data *data = i2c_get_clientdata(client); | |
6f9703d0 | 785 | int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); |
05a9bd46 | 786 | long temp; |
6f9703d0 DW |
787 | u8 reg; |
788 | ||
05a9bd46 DW |
789 | if (strict_strtol(buf, 10, &temp)) |
790 | return -EINVAL; | |
791 | ||
792 | temp = cvt_auto_temp(temp); | |
6f9703d0 DW |
793 | if (temp < 0) |
794 | return temp; | |
795 | ||
796 | mutex_lock(&data->lock); | |
797 | data->pwm_automatic[attr->index] = temp; | |
798 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
799 | ||
800 | if (!(attr->index % 2)) { | |
801 | reg &= 0xF; | |
802 | reg |= (temp << 4) & 0xF0; | |
803 | } else { | |
804 | reg &= 0xF0; | |
805 | reg |= temp & 0xF; | |
806 | } | |
807 | ||
808 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
809 | mutex_unlock(&data->lock); | |
810 | ||
811 | return count; | |
812 | } | |
813 | ||
fe03f28c DW |
814 | static ssize_t show_alarm(struct device *dev, |
815 | struct device_attribute *devattr, | |
816 | char *buf) | |
817 | { | |
818 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
819 | struct adt7470_data *data = adt7470_update_device(dev); | |
820 | ||
821 | if (data->alarm & attr->index) | |
822 | return sprintf(buf, "1\n"); | |
823 | else | |
824 | return sprintf(buf, "0\n"); | |
825 | } | |
826 | ||
827 | static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL); | |
6f9703d0 DW |
828 | |
829 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
830 | set_temp_max, 0); | |
831 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
832 | set_temp_max, 1); | |
833 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
834 | set_temp_max, 2); | |
835 | static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max, | |
836 | set_temp_max, 3); | |
837 | static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max, | |
838 | set_temp_max, 4); | |
839 | static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max, | |
840 | set_temp_max, 5); | |
841 | static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max, | |
842 | set_temp_max, 6); | |
843 | static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max, | |
844 | set_temp_max, 7); | |
845 | static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max, | |
846 | set_temp_max, 8); | |
847 | static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max, | |
848 | set_temp_max, 9); | |
849 | ||
850 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
851 | set_temp_min, 0); | |
852 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
853 | set_temp_min, 1); | |
854 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
855 | set_temp_min, 2); | |
856 | static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min, | |
857 | set_temp_min, 3); | |
858 | static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min, | |
859 | set_temp_min, 4); | |
860 | static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min, | |
861 | set_temp_min, 5); | |
862 | static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min, | |
863 | set_temp_min, 6); | |
864 | static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min, | |
865 | set_temp_min, 7); | |
866 | static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min, | |
867 | set_temp_min, 8); | |
868 | static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min, | |
869 | set_temp_min, 9); | |
870 | ||
871 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
872 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
873 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
874 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); | |
875 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); | |
876 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); | |
877 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); | |
878 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); | |
879 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8); | |
880 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9); | |
881 | ||
fe03f28c DW |
882 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, |
883 | ADT7470_R1T_ALARM); | |
884 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
885 | ADT7470_R2T_ALARM); | |
886 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
887 | ADT7470_R3T_ALARM); | |
888 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, | |
889 | ADT7470_R4T_ALARM); | |
890 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, | |
891 | ADT7470_R5T_ALARM); | |
892 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, | |
893 | ADT7470_R6T_ALARM); | |
894 | static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL, | |
895 | ADT7470_R7T_ALARM); | |
896 | static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL, | |
897 | ALARM2(ADT7470_R8T_ALARM)); | |
898 | static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL, | |
899 | ALARM2(ADT7470_R9T_ALARM)); | |
900 | static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL, | |
901 | ALARM2(ADT7470_R10T_ALARM)); | |
902 | ||
6f9703d0 DW |
903 | static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max, |
904 | set_fan_max, 0); | |
905 | static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max, | |
906 | set_fan_max, 1); | |
907 | static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max, | |
908 | set_fan_max, 2); | |
909 | static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max, | |
910 | set_fan_max, 3); | |
911 | ||
912 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
913 | set_fan_min, 0); | |
914 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
915 | set_fan_min, 1); | |
916 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
917 | set_fan_min, 2); | |
918 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
919 | set_fan_min, 3); | |
920 | ||
921 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
922 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
923 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
924 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
925 | ||
fe03f28c DW |
926 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, |
927 | ALARM2(ADT7470_FAN1_ALARM)); | |
928 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
929 | ALARM2(ADT7470_FAN2_ALARM)); | |
930 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
931 | ALARM2(ADT7470_FAN3_ALARM)); | |
932 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
933 | ALARM2(ADT7470_FAN4_ALARM)); | |
934 | ||
6f9703d0 DW |
935 | static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO, |
936 | show_force_pwm_max, set_force_pwm_max, 0); | |
937 | ||
938 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
939 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
940 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
941 | static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); | |
942 | ||
943 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
944 | show_pwm_min, set_pwm_min, 0); | |
945 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
946 | show_pwm_min, set_pwm_min, 1); | |
947 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
948 | show_pwm_min, set_pwm_min, 2); | |
949 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
950 | show_pwm_min, set_pwm_min, 3); | |
951 | ||
952 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
953 | show_pwm_max, set_pwm_max, 0); | |
954 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
955 | show_pwm_max, set_pwm_max, 1); | |
956 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
957 | show_pwm_max, set_pwm_max, 2); | |
958 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
959 | show_pwm_max, set_pwm_max, 3); | |
960 | ||
961 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
962 | show_pwm_tmin, set_pwm_tmin, 0); | |
963 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
964 | show_pwm_tmin, set_pwm_tmin, 1); | |
965 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
966 | show_pwm_tmin, set_pwm_tmin, 2); | |
967 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, | |
968 | show_pwm_tmin, set_pwm_tmin, 3); | |
969 | ||
970 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
971 | NULL, 0); | |
972 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
973 | NULL, 1); | |
974 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
975 | NULL, 2); | |
976 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
977 | NULL, 3); | |
978 | ||
979 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
980 | set_pwm_auto, 0); | |
981 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
982 | set_pwm_auto, 1); | |
983 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
984 | set_pwm_auto, 2); | |
985 | static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
986 | set_pwm_auto, 3); | |
987 | ||
988 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
989 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
990 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
991 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
992 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
993 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
994 | static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, | |
995 | show_pwm_auto_temp, set_pwm_auto_temp, 3); | |
996 | ||
997 | static struct attribute *adt7470_attr[] = | |
998 | { | |
fe03f28c | 999 | &dev_attr_alarm_mask.attr, |
6f9703d0 DW |
1000 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1001 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1002 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1003 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
1004 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
1005 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
1006 | &sensor_dev_attr_temp7_max.dev_attr.attr, | |
1007 | &sensor_dev_attr_temp8_max.dev_attr.attr, | |
1008 | &sensor_dev_attr_temp9_max.dev_attr.attr, | |
1009 | &sensor_dev_attr_temp10_max.dev_attr.attr, | |
1010 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1011 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1012 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1013 | &sensor_dev_attr_temp4_min.dev_attr.attr, | |
1014 | &sensor_dev_attr_temp5_min.dev_attr.attr, | |
1015 | &sensor_dev_attr_temp6_min.dev_attr.attr, | |
1016 | &sensor_dev_attr_temp7_min.dev_attr.attr, | |
1017 | &sensor_dev_attr_temp8_min.dev_attr.attr, | |
1018 | &sensor_dev_attr_temp9_min.dev_attr.attr, | |
1019 | &sensor_dev_attr_temp10_min.dev_attr.attr, | |
1020 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1021 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1022 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1023 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
1024 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
1025 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
1026 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
1027 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
1028 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
1029 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
fe03f28c DW |
1030 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1031 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1032 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1033 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, | |
1034 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, | |
1035 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, | |
1036 | &sensor_dev_attr_temp7_alarm.dev_attr.attr, | |
1037 | &sensor_dev_attr_temp8_alarm.dev_attr.attr, | |
1038 | &sensor_dev_attr_temp9_alarm.dev_attr.attr, | |
1039 | &sensor_dev_attr_temp10_alarm.dev_attr.attr, | |
6f9703d0 DW |
1040 | &sensor_dev_attr_fan1_max.dev_attr.attr, |
1041 | &sensor_dev_attr_fan2_max.dev_attr.attr, | |
1042 | &sensor_dev_attr_fan3_max.dev_attr.attr, | |
1043 | &sensor_dev_attr_fan4_max.dev_attr.attr, | |
1044 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1045 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1046 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1047 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1048 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1049 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1050 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1051 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
fe03f28c DW |
1052 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1053 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1054 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1055 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
6f9703d0 DW |
1056 | &sensor_dev_attr_force_pwm_max.dev_attr.attr, |
1057 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1058 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1059 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1060 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
1061 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1062 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1063 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1064 | &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, | |
1065 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1066 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1067 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1068 | &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, | |
1069 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1070 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1071 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1072 | &sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr, | |
1073 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1074 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1075 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1076 | &sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr, | |
1077 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1078 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1079 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1080 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, | |
1081 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1082 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1083 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1084 | &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, | |
1085 | NULL | |
1086 | }; | |
1087 | ||
008f1ca5 JD |
1088 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1089 | static int adt7470_detect(struct i2c_client *client, int kind, | |
1090 | struct i2c_board_info *info) | |
6f9703d0 | 1091 | { |
008f1ca5 | 1092 | struct i2c_adapter *adapter = client->adapter; |
6f9703d0 DW |
1093 | |
1094 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
008f1ca5 | 1095 | return -ENODEV; |
6f9703d0 DW |
1096 | |
1097 | if (kind <= 0) { | |
1098 | int vendor, device, revision; | |
1099 | ||
1100 | vendor = i2c_smbus_read_byte_data(client, ADT7470_REG_VENDOR); | |
008f1ca5 JD |
1101 | if (vendor != ADT7470_VENDOR) |
1102 | return -ENODEV; | |
6f9703d0 DW |
1103 | |
1104 | device = i2c_smbus_read_byte_data(client, ADT7470_REG_DEVICE); | |
008f1ca5 JD |
1105 | if (device != ADT7470_DEVICE) |
1106 | return -ENODEV; | |
6f9703d0 DW |
1107 | |
1108 | revision = i2c_smbus_read_byte_data(client, | |
1109 | ADT7470_REG_REVISION); | |
008f1ca5 JD |
1110 | if (revision != ADT7470_REVISION) |
1111 | return -ENODEV; | |
6f9703d0 DW |
1112 | } else |
1113 | dev_dbg(&adapter->dev, "detection forced\n"); | |
1114 | ||
008f1ca5 | 1115 | strlcpy(info->type, "adt7470", I2C_NAME_SIZE); |
6f9703d0 | 1116 | |
008f1ca5 JD |
1117 | return 0; |
1118 | } | |
1119 | ||
1120 | static int adt7470_probe(struct i2c_client *client, | |
1121 | const struct i2c_device_id *id) | |
1122 | { | |
1123 | struct adt7470_data *data; | |
1124 | int err; | |
1125 | ||
1126 | data = kzalloc(sizeof(struct adt7470_data), GFP_KERNEL); | |
1127 | if (!data) { | |
1128 | err = -ENOMEM; | |
1129 | goto exit; | |
1130 | } | |
1131 | ||
1132 | i2c_set_clientdata(client, data); | |
1133 | mutex_init(&data->lock); | |
6f9703d0 DW |
1134 | |
1135 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1136 | ||
1137 | /* Initialize the ADT7470 chip */ | |
1138 | adt7470_init_client(client); | |
1139 | ||
1140 | /* Register sysfs hooks */ | |
1141 | data->attrs.attrs = adt7470_attr; | |
1142 | if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs))) | |
008f1ca5 | 1143 | goto exit_free; |
6f9703d0 | 1144 | |
1beeffe4 TJ |
1145 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1146 | if (IS_ERR(data->hwmon_dev)) { | |
1147 | err = PTR_ERR(data->hwmon_dev); | |
6f9703d0 DW |
1148 | goto exit_remove; |
1149 | } | |
1150 | ||
1151 | return 0; | |
1152 | ||
1153 | exit_remove: | |
1154 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
6f9703d0 DW |
1155 | exit_free: |
1156 | kfree(data); | |
1157 | exit: | |
1158 | return err; | |
1159 | } | |
1160 | ||
008f1ca5 | 1161 | static int adt7470_remove(struct i2c_client *client) |
6f9703d0 DW |
1162 | { |
1163 | struct adt7470_data *data = i2c_get_clientdata(client); | |
1164 | ||
1beeffe4 | 1165 | hwmon_device_unregister(data->hwmon_dev); |
6f9703d0 | 1166 | sysfs_remove_group(&client->dev.kobj, &data->attrs); |
6f9703d0 DW |
1167 | kfree(data); |
1168 | return 0; | |
1169 | } | |
1170 | ||
1171 | static int __init adt7470_init(void) | |
1172 | { | |
1173 | return i2c_add_driver(&adt7470_driver); | |
1174 | } | |
1175 | ||
1176 | static void __exit adt7470_exit(void) | |
1177 | { | |
1178 | i2c_del_driver(&adt7470_driver); | |
1179 | } | |
1180 | ||
1181 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1182 | MODULE_DESCRIPTION("ADT7470 driver"); | |
1183 | MODULE_LICENSE("GPL"); | |
1184 | ||
1185 | module_init(adt7470_init); | |
1186 | module_exit(adt7470_exit); |