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57df46d6 DW |
1 | /* |
2 | * A hwmon driver for the Analog Devices ADT7473 | |
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, 0x2D, 0x2E, I2C_CLIENT_END }; |
57df46d6 | 34 | |
57df46d6 DW |
35 | /* ADT7473 registers */ |
36 | #define ADT7473_REG_BASE_ADDR 0x20 | |
37 | ||
38 | #define ADT7473_REG_VOLT_BASE_ADDR 0x21 | |
57df46d6 | 39 | #define ADT7473_REG_VOLT_MIN_BASE_ADDR 0x46 |
57df46d6 DW |
40 | |
41 | #define ADT7473_REG_TEMP_BASE_ADDR 0x25 | |
57df46d6 | 42 | #define ADT7473_REG_TEMP_LIMITS_BASE_ADDR 0x4E |
57df46d6 | 43 | #define ADT7473_REG_TEMP_TMIN_BASE_ADDR 0x67 |
57df46d6 | 44 | #define ADT7473_REG_TEMP_TMAX_BASE_ADDR 0x6A |
57df46d6 DW |
45 | |
46 | #define ADT7473_REG_FAN_BASE_ADDR 0x28 | |
57df46d6 | 47 | #define ADT7473_REG_FAN_MIN_BASE_ADDR 0x54 |
57df46d6 DW |
48 | |
49 | #define ADT7473_REG_PWM_BASE_ADDR 0x30 | |
57df46d6 | 50 | #define ADT7473_REG_PWM_MIN_BASE_ADDR 0x64 |
57df46d6 | 51 | #define ADT7473_REG_PWM_MAX_BASE_ADDR 0x38 |
57df46d6 | 52 | #define ADT7473_REG_PWM_BHVR_BASE_ADDR 0x5C |
57df46d6 DW |
53 | #define ADT7473_PWM_BHVR_MASK 0xE0 |
54 | #define ADT7473_PWM_BHVR_SHIFT 5 | |
55 | ||
56 | #define ADT7473_REG_CFG1 0x40 | |
57 | #define ADT7473_CFG1_START 0x01 | |
58 | #define ADT7473_CFG1_READY 0x04 | |
59 | #define ADT7473_REG_CFG2 0x73 | |
60 | #define ADT7473_REG_CFG3 0x78 | |
61 | #define ADT7473_REG_CFG4 0x7D | |
62 | #define ADT7473_CFG4_MAX_DUTY_AT_OVT 0x08 | |
63 | #define ADT7473_REG_CFG5 0x7C | |
64 | #define ADT7473_CFG5_TEMP_TWOS 0x01 | |
65 | #define ADT7473_CFG5_TEMP_OFFSET 0x02 | |
66 | ||
67 | #define ADT7473_REG_DEVICE 0x3D | |
68 | #define ADT7473_VENDOR 0x41 | |
69 | #define ADT7473_REG_VENDOR 0x3E | |
70 | #define ADT7473_DEVICE 0x73 | |
71 | #define ADT7473_REG_REVISION 0x3F | |
72 | #define ADT7473_REV_68 0x68 | |
73 | #define ADT7473_REV_69 0x69 | |
74 | ||
75 | #define ADT7473_REG_ALARM1 0x41 | |
76 | #define ADT7473_VCCP_ALARM 0x02 | |
77 | #define ADT7473_VCC_ALARM 0x04 | |
78 | #define ADT7473_R1T_ALARM 0x10 | |
79 | #define ADT7473_LT_ALARM 0x20 | |
80 | #define ADT7473_R2T_ALARM 0x40 | |
81 | #define ADT7473_OOL 0x80 | |
82 | #define ADT7473_REG_ALARM2 0x42 | |
83 | #define ADT7473_OVT_ALARM 0x02 | |
84 | #define ADT7473_FAN1_ALARM 0x04 | |
85 | #define ADT7473_FAN2_ALARM 0x08 | |
86 | #define ADT7473_FAN3_ALARM 0x10 | |
87 | #define ADT7473_FAN4_ALARM 0x20 | |
88 | #define ADT7473_R1T_SHORT 0x40 | |
89 | #define ADT7473_R2T_SHORT 0x80 | |
57df46d6 DW |
90 | |
91 | #define ALARM2(x) ((x) << 8) | |
92 | ||
93 | #define ADT7473_VOLT_COUNT 2 | |
94 | #define ADT7473_REG_VOLT(x) (ADT7473_REG_VOLT_BASE_ADDR + (x)) | |
95 | #define ADT7473_REG_VOLT_MIN(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + ((x) * 2)) | |
96 | #define ADT7473_REG_VOLT_MAX(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + \ | |
97 | ((x) * 2) + 1) | |
98 | ||
99 | #define ADT7473_TEMP_COUNT 3 | |
100 | #define ADT7473_REG_TEMP(x) (ADT7473_REG_TEMP_BASE_ADDR + (x)) | |
101 | #define ADT7473_REG_TEMP_MIN(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
102 | #define ADT7473_REG_TEMP_MAX(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + \ | |
103 | ((x) * 2) + 1) | |
104 | #define ADT7473_REG_TEMP_TMIN(x) (ADT7473_REG_TEMP_TMIN_BASE_ADDR + (x)) | |
105 | #define ADT7473_REG_TEMP_TMAX(x) (ADT7473_REG_TEMP_TMAX_BASE_ADDR + (x)) | |
106 | ||
107 | #define ADT7473_FAN_COUNT 4 | |
108 | #define ADT7473_REG_FAN(x) (ADT7473_REG_FAN_BASE_ADDR + ((x) * 2)) | |
109 | #define ADT7473_REG_FAN_MIN(x) (ADT7473_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
110 | ||
111 | #define ADT7473_PWM_COUNT 3 | |
112 | #define ADT7473_REG_PWM(x) (ADT7473_REG_PWM_BASE_ADDR + (x)) | |
113 | #define ADT7473_REG_PWM_MAX(x) (ADT7473_REG_PWM_MAX_BASE_ADDR + (x)) | |
114 | #define ADT7473_REG_PWM_MIN(x) (ADT7473_REG_PWM_MIN_BASE_ADDR + (x)) | |
115 | #define ADT7473_REG_PWM_BHVR(x) (ADT7473_REG_PWM_BHVR_BASE_ADDR + (x)) | |
116 | ||
117 | /* How often do we reread sensors values? (In jiffies) */ | |
118 | #define SENSOR_REFRESH_INTERVAL (2 * HZ) | |
119 | ||
120 | /* How often do we reread sensor limit values? (In jiffies) */ | |
121 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
122 | ||
123 | /* datasheet says to divide this number by the fan reading to get fan rpm */ | |
124 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
125 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
126 | #define FAN_PERIOD_INVALID 65535 | |
127 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
128 | ||
129 | struct adt7473_data { | |
57df46d6 DW |
130 | struct device *hwmon_dev; |
131 | struct attribute_group attrs; | |
132 | struct mutex lock; | |
133 | char sensors_valid; | |
134 | char limits_valid; | |
135 | unsigned long sensors_last_updated; /* In jiffies */ | |
136 | unsigned long limits_last_updated; /* In jiffies */ | |
137 | ||
138 | u8 volt[ADT7473_VOLT_COUNT]; | |
139 | s8 volt_min[ADT7473_VOLT_COUNT]; | |
140 | s8 volt_max[ADT7473_VOLT_COUNT]; | |
141 | ||
142 | s8 temp[ADT7473_TEMP_COUNT]; | |
143 | s8 temp_min[ADT7473_TEMP_COUNT]; | |
144 | s8 temp_max[ADT7473_TEMP_COUNT]; | |
145 | s8 temp_tmin[ADT7473_TEMP_COUNT]; | |
146 | /* This is called the !THERM limit in the datasheet */ | |
147 | s8 temp_tmax[ADT7473_TEMP_COUNT]; | |
148 | ||
149 | u16 fan[ADT7473_FAN_COUNT]; | |
150 | u16 fan_min[ADT7473_FAN_COUNT]; | |
151 | ||
152 | u8 pwm[ADT7473_PWM_COUNT]; | |
153 | u8 pwm_max[ADT7473_PWM_COUNT]; | |
154 | u8 pwm_min[ADT7473_PWM_COUNT]; | |
155 | u8 pwm_behavior[ADT7473_PWM_COUNT]; | |
156 | ||
157 | u8 temp_twos_complement; | |
158 | u8 temp_offset; | |
159 | ||
160 | u16 alarm; | |
161 | u8 max_duty_at_overheat; | |
162 | }; | |
163 | ||
eea54766 JD |
164 | static int adt7473_probe(struct i2c_client *client, |
165 | const struct i2c_device_id *id); | |
310ec792 | 166 | static int adt7473_detect(struct i2c_client *client, |
eea54766 JD |
167 | struct i2c_board_info *info); |
168 | static int adt7473_remove(struct i2c_client *client); | |
169 | ||
170 | static const struct i2c_device_id adt7473_id[] = { | |
1f86df49 | 171 | { "adt7473", 0 }, |
eea54766 JD |
172 | { } |
173 | }; | |
57df46d6 DW |
174 | |
175 | static struct i2c_driver adt7473_driver = { | |
eea54766 | 176 | .class = I2C_CLASS_HWMON, |
57df46d6 DW |
177 | .driver = { |
178 | .name = "adt7473", | |
179 | }, | |
eea54766 JD |
180 | .probe = adt7473_probe, |
181 | .remove = adt7473_remove, | |
182 | .id_table = adt7473_id, | |
183 | .detect = adt7473_detect, | |
c3813d6a | 184 | .address_list = normal_i2c, |
57df46d6 DW |
185 | }; |
186 | ||
187 | /* | |
188 | * 16-bit registers on the ADT7473 are low-byte first. The data sheet says | |
189 | * that the low byte must be read before the high byte. | |
190 | */ | |
191 | static inline int adt7473_read_word_data(struct i2c_client *client, u8 reg) | |
192 | { | |
193 | u16 foo; | |
194 | foo = i2c_smbus_read_byte_data(client, reg); | |
195 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
196 | return foo; | |
197 | } | |
198 | ||
199 | static inline int adt7473_write_word_data(struct i2c_client *client, u8 reg, | |
200 | u16 value) | |
201 | { | |
202 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
203 | && i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
204 | } | |
205 | ||
206 | static void adt7473_init_client(struct i2c_client *client) | |
207 | { | |
208 | int reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG1); | |
209 | ||
210 | if (!(reg & ADT7473_CFG1_READY)) { | |
211 | dev_err(&client->dev, "Chip not ready.\n"); | |
212 | } else { | |
213 | /* start monitoring */ | |
214 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG1, | |
215 | reg | ADT7473_CFG1_START); | |
216 | } | |
217 | } | |
218 | ||
219 | static struct adt7473_data *adt7473_update_device(struct device *dev) | |
220 | { | |
221 | struct i2c_client *client = to_i2c_client(dev); | |
222 | struct adt7473_data *data = i2c_get_clientdata(client); | |
223 | unsigned long local_jiffies = jiffies; | |
224 | u8 cfg; | |
225 | int i; | |
226 | ||
227 | mutex_lock(&data->lock); | |
228 | if (time_before(local_jiffies, data->sensors_last_updated + | |
229 | SENSOR_REFRESH_INTERVAL) | |
230 | && data->sensors_valid) | |
231 | goto no_sensor_update; | |
232 | ||
233 | for (i = 0; i < ADT7473_VOLT_COUNT; i++) | |
234 | data->volt[i] = i2c_smbus_read_byte_data(client, | |
235 | ADT7473_REG_VOLT(i)); | |
236 | ||
237 | /* Determine temperature encoding */ | |
238 | cfg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG5); | |
239 | data->temp_twos_complement = (cfg & ADT7473_CFG5_TEMP_TWOS); | |
240 | ||
241 | /* | |
242 | * What does this do? it implies a variable temperature sensor | |
243 | * offset, but the datasheet doesn't say anything about this bit | |
244 | * and other parts of the datasheet imply that "offset64" mode | |
245 | * means that you shift temp values by -64 if the above bit was set. | |
246 | */ | |
247 | data->temp_offset = (cfg & ADT7473_CFG5_TEMP_OFFSET); | |
248 | ||
249 | for (i = 0; i < ADT7473_TEMP_COUNT; i++) | |
250 | data->temp[i] = i2c_smbus_read_byte_data(client, | |
251 | ADT7473_REG_TEMP(i)); | |
252 | ||
253 | for (i = 0; i < ADT7473_FAN_COUNT; i++) | |
254 | data->fan[i] = adt7473_read_word_data(client, | |
255 | ADT7473_REG_FAN(i)); | |
256 | ||
257 | for (i = 0; i < ADT7473_PWM_COUNT; i++) | |
258 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
259 | ADT7473_REG_PWM(i)); | |
260 | ||
261 | data->alarm = i2c_smbus_read_byte_data(client, ADT7473_REG_ALARM1); | |
262 | if (data->alarm & ADT7473_OOL) | |
263 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
264 | ADT7473_REG_ALARM2)); | |
265 | ||
266 | data->sensors_last_updated = local_jiffies; | |
267 | data->sensors_valid = 1; | |
268 | ||
269 | no_sensor_update: | |
270 | if (time_before(local_jiffies, data->limits_last_updated + | |
271 | LIMIT_REFRESH_INTERVAL) | |
272 | && data->limits_valid) | |
273 | goto out; | |
274 | ||
275 | for (i = 0; i < ADT7473_VOLT_COUNT; i++) { | |
276 | data->volt_min[i] = i2c_smbus_read_byte_data(client, | |
277 | ADT7473_REG_VOLT_MIN(i)); | |
278 | data->volt_max[i] = i2c_smbus_read_byte_data(client, | |
279 | ADT7473_REG_VOLT_MAX(i)); | |
280 | } | |
281 | ||
282 | for (i = 0; i < ADT7473_TEMP_COUNT; i++) { | |
283 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
284 | ADT7473_REG_TEMP_MIN(i)); | |
285 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
286 | ADT7473_REG_TEMP_MAX(i)); | |
287 | data->temp_tmin[i] = i2c_smbus_read_byte_data(client, | |
288 | ADT7473_REG_TEMP_TMIN(i)); | |
289 | data->temp_tmax[i] = i2c_smbus_read_byte_data(client, | |
290 | ADT7473_REG_TEMP_TMAX(i)); | |
291 | } | |
292 | ||
293 | for (i = 0; i < ADT7473_FAN_COUNT; i++) | |
294 | data->fan_min[i] = adt7473_read_word_data(client, | |
295 | ADT7473_REG_FAN_MIN(i)); | |
296 | ||
297 | for (i = 0; i < ADT7473_PWM_COUNT; i++) { | |
298 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
299 | ADT7473_REG_PWM_MAX(i)); | |
300 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
301 | ADT7473_REG_PWM_MIN(i)); | |
302 | data->pwm_behavior[i] = i2c_smbus_read_byte_data(client, | |
303 | ADT7473_REG_PWM_BHVR(i)); | |
304 | } | |
305 | ||
ed4ec814 JD |
306 | i = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); |
307 | data->max_duty_at_overheat = !!(i & ADT7473_CFG4_MAX_DUTY_AT_OVT); | |
308 | ||
57df46d6 DW |
309 | data->limits_last_updated = local_jiffies; |
310 | data->limits_valid = 1; | |
311 | ||
312 | out: | |
313 | mutex_unlock(&data->lock); | |
314 | return data; | |
315 | } | |
316 | ||
317 | /* | |
be821b78 | 318 | * Conversions |
57df46d6 | 319 | */ |
be821b78 JD |
320 | |
321 | /* IN are scaled acording to built-in resistors */ | |
322 | static const int adt7473_scaling[] = { /* .001 Volts */ | |
323 | 2250, 3300 | |
57df46d6 | 324 | }; |
be821b78 | 325 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) |
57df46d6 DW |
326 | |
327 | static int decode_volt(int volt_index, u8 raw) | |
328 | { | |
be821b78 | 329 | return SCALE(raw, 192, adt7473_scaling[volt_index]); |
57df46d6 DW |
330 | } |
331 | ||
332 | static u8 encode_volt(int volt_index, int cooked) | |
333 | { | |
be821b78 JD |
334 | int raw = SCALE(cooked, adt7473_scaling[volt_index], 192); |
335 | return SENSORS_LIMIT(raw, 0, 255); | |
57df46d6 DW |
336 | } |
337 | ||
338 | static ssize_t show_volt_min(struct device *dev, | |
339 | struct device_attribute *devattr, | |
340 | char *buf) | |
341 | { | |
342 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
343 | struct adt7473_data *data = adt7473_update_device(dev); | |
344 | return sprintf(buf, "%d\n", | |
345 | decode_volt(attr->index, data->volt_min[attr->index])); | |
346 | } | |
347 | ||
348 | static ssize_t set_volt_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 adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
356 | long volt; |
357 | ||
358 | if (strict_strtol(buf, 10, &volt)) | |
359 | return -EINVAL; | |
360 | ||
361 | volt = encode_volt(attr->index, volt); | |
57df46d6 DW |
362 | |
363 | mutex_lock(&data->lock); | |
364 | data->volt_min[attr->index] = volt; | |
365 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index), | |
366 | volt); | |
367 | mutex_unlock(&data->lock); | |
368 | ||
369 | return count; | |
370 | } | |
371 | ||
372 | static ssize_t show_volt_max(struct device *dev, | |
373 | struct device_attribute *devattr, | |
374 | char *buf) | |
375 | { | |
376 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
377 | struct adt7473_data *data = adt7473_update_device(dev); | |
378 | return sprintf(buf, "%d\n", | |
379 | decode_volt(attr->index, data->volt_max[attr->index])); | |
380 | } | |
381 | ||
382 | static ssize_t set_volt_max(struct device *dev, | |
383 | struct device_attribute *devattr, | |
384 | const char *buf, | |
385 | size_t count) | |
386 | { | |
387 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
388 | struct i2c_client *client = to_i2c_client(dev); | |
389 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
390 | long volt; |
391 | ||
392 | if (strict_strtol(buf, 10, &volt)) | |
393 | return -EINVAL; | |
394 | ||
395 | volt = encode_volt(attr->index, volt); | |
57df46d6 DW |
396 | |
397 | mutex_lock(&data->lock); | |
398 | data->volt_max[attr->index] = volt; | |
399 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index), | |
400 | volt); | |
401 | mutex_unlock(&data->lock); | |
402 | ||
403 | return count; | |
404 | } | |
405 | ||
406 | static ssize_t show_volt(struct device *dev, struct device_attribute *devattr, | |
407 | char *buf) | |
408 | { | |
409 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
410 | struct adt7473_data *data = adt7473_update_device(dev); | |
411 | ||
412 | return sprintf(buf, "%d\n", | |
413 | decode_volt(attr->index, data->volt[attr->index])); | |
414 | } | |
415 | ||
416 | /* | |
417 | * This chip can report temperature data either as a two's complement | |
418 | * number in the range -128 to 127, or as an unsigned number that must | |
419 | * be offset by 64. | |
420 | */ | |
18524486 | 421 | static int decode_temp(u8 twos_complement, u8 raw) |
57df46d6 | 422 | { |
18524486 | 423 | return twos_complement ? (s8)raw : raw - 64; |
57df46d6 DW |
424 | } |
425 | ||
18524486 | 426 | static u8 encode_temp(u8 twos_complement, int cooked) |
57df46d6 | 427 | { |
862343c4 DW |
428 | u8 ret = twos_complement ? cooked & 0xFF : cooked + 64; |
429 | return SENSORS_LIMIT(ret, 0, 255); | |
57df46d6 DW |
430 | } |
431 | ||
432 | static ssize_t show_temp_min(struct device *dev, | |
433 | struct device_attribute *devattr, | |
434 | char *buf) | |
435 | { | |
436 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
437 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
438 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
439 | data->temp_twos_complement, | |
440 | data->temp_min[attr->index])); | |
57df46d6 DW |
441 | } |
442 | ||
443 | static ssize_t set_temp_min(struct device *dev, | |
444 | struct device_attribute *devattr, | |
445 | const char *buf, | |
446 | size_t count) | |
447 | { | |
448 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
449 | struct i2c_client *client = to_i2c_client(dev); | |
450 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
451 | long temp; |
452 | ||
453 | if (strict_strtol(buf, 10, &temp)) | |
454 | return -EINVAL; | |
455 | ||
8f8c1fb0 | 456 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
18524486 | 457 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
458 | |
459 | mutex_lock(&data->lock); | |
460 | data->temp_min[attr->index] = temp; | |
461 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index), | |
462 | temp); | |
463 | mutex_unlock(&data->lock); | |
464 | ||
465 | return count; | |
466 | } | |
467 | ||
468 | static ssize_t show_temp_max(struct device *dev, | |
469 | struct device_attribute *devattr, | |
470 | char *buf) | |
471 | { | |
472 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
473 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
474 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
475 | data->temp_twos_complement, | |
476 | data->temp_max[attr->index])); | |
57df46d6 DW |
477 | } |
478 | ||
479 | static ssize_t set_temp_max(struct device *dev, | |
480 | struct device_attribute *devattr, | |
481 | const char *buf, | |
482 | size_t count) | |
483 | { | |
484 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
485 | struct i2c_client *client = to_i2c_client(dev); | |
486 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
487 | long temp; |
488 | ||
489 | if (strict_strtol(buf, 10, &temp)) | |
490 | return -EINVAL; | |
491 | ||
8f8c1fb0 | 492 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
18524486 | 493 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
494 | |
495 | mutex_lock(&data->lock); | |
496 | data->temp_max[attr->index] = temp; | |
497 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index), | |
498 | temp); | |
499 | mutex_unlock(&data->lock); | |
500 | ||
501 | return count; | |
502 | } | |
503 | ||
504 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
505 | char *buf) | |
506 | { | |
507 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
508 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
509 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
510 | data->temp_twos_complement, | |
511 | data->temp[attr->index])); | |
57df46d6 DW |
512 | } |
513 | ||
514 | static ssize_t show_fan_min(struct device *dev, | |
515 | struct device_attribute *devattr, | |
516 | char *buf) | |
517 | { | |
518 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
519 | struct adt7473_data *data = adt7473_update_device(dev); | |
520 | ||
521 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
522 | return sprintf(buf, "%d\n", | |
523 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
524 | else | |
525 | return sprintf(buf, "0\n"); | |
526 | } | |
527 | ||
528 | static ssize_t set_fan_min(struct device *dev, | |
529 | struct device_attribute *devattr, | |
530 | const char *buf, size_t count) | |
531 | { | |
532 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
533 | struct i2c_client *client = to_i2c_client(dev); | |
534 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 | 535 | long temp; |
57df46d6 | 536 | |
862343c4 | 537 | if (strict_strtol(buf, 10, &temp) || !temp) |
57df46d6 | 538 | return -EINVAL; |
862343c4 | 539 | |
57df46d6 | 540 | temp = FAN_RPM_TO_PERIOD(temp); |
862343c4 | 541 | temp = SENSORS_LIMIT(temp, 1, 65534); |
57df46d6 DW |
542 | |
543 | mutex_lock(&data->lock); | |
544 | data->fan_min[attr->index] = temp; | |
545 | adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp); | |
546 | mutex_unlock(&data->lock); | |
547 | ||
548 | return count; | |
549 | } | |
550 | ||
551 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
552 | char *buf) | |
553 | { | |
554 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
555 | struct adt7473_data *data = adt7473_update_device(dev); | |
556 | ||
557 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
558 | return sprintf(buf, "%d\n", | |
559 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
560 | else | |
561 | return sprintf(buf, "0\n"); | |
562 | } | |
563 | ||
564 | static ssize_t show_max_duty_at_crit(struct device *dev, | |
565 | struct device_attribute *devattr, | |
566 | char *buf) | |
567 | { | |
568 | struct adt7473_data *data = adt7473_update_device(dev); | |
569 | return sprintf(buf, "%d\n", data->max_duty_at_overheat); | |
570 | } | |
571 | ||
572 | static ssize_t set_max_duty_at_crit(struct device *dev, | |
573 | struct device_attribute *devattr, | |
574 | const char *buf, | |
575 | size_t count) | |
576 | { | |
577 | u8 reg; | |
578 | struct i2c_client *client = to_i2c_client(dev); | |
579 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
580 | long temp; |
581 | ||
582 | if (strict_strtol(buf, 10, &temp)) | |
583 | return -EINVAL; | |
57df46d6 DW |
584 | |
585 | mutex_lock(&data->lock); | |
321c4138 | 586 | data->max_duty_at_overheat = !!temp; |
57df46d6 DW |
587 | reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); |
588 | if (temp) | |
589 | reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
590 | else | |
591 | reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
592 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg); | |
593 | mutex_unlock(&data->lock); | |
594 | ||
595 | return count; | |
596 | } | |
597 | ||
598 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
599 | char *buf) | |
600 | { | |
601 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
602 | struct adt7473_data *data = adt7473_update_device(dev); | |
603 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
604 | } | |
605 | ||
606 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
607 | const char *buf, size_t count) | |
608 | { | |
609 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
610 | struct i2c_client *client = to_i2c_client(dev); | |
611 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
612 | long temp; |
613 | ||
614 | if (strict_strtol(buf, 10, &temp)) | |
615 | return -EINVAL; | |
616 | ||
617 | temp = SENSORS_LIMIT(temp, 0, 255); | |
57df46d6 DW |
618 | |
619 | mutex_lock(&data->lock); | |
620 | data->pwm[attr->index] = temp; | |
621 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp); | |
622 | mutex_unlock(&data->lock); | |
623 | ||
624 | return count; | |
625 | } | |
626 | ||
627 | static ssize_t show_pwm_max(struct device *dev, | |
628 | struct device_attribute *devattr, | |
629 | char *buf) | |
630 | { | |
631 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
632 | struct adt7473_data *data = adt7473_update_device(dev); | |
633 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
634 | } | |
635 | ||
636 | static ssize_t set_pwm_max(struct device *dev, | |
637 | struct device_attribute *devattr, | |
638 | const char *buf, | |
639 | size_t count) | |
640 | { | |
641 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
642 | struct i2c_client *client = to_i2c_client(dev); | |
643 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
644 | long temp; |
645 | ||
646 | if (strict_strtol(buf, 10, &temp)) | |
647 | return -EINVAL; | |
648 | ||
649 | temp = SENSORS_LIMIT(temp, 0, 255); | |
57df46d6 DW |
650 | |
651 | mutex_lock(&data->lock); | |
652 | data->pwm_max[attr->index] = temp; | |
653 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index), | |
654 | temp); | |
655 | mutex_unlock(&data->lock); | |
656 | ||
657 | return count; | |
658 | } | |
659 | ||
660 | static ssize_t show_pwm_min(struct device *dev, | |
661 | struct device_attribute *devattr, | |
662 | char *buf) | |
663 | { | |
664 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
665 | struct adt7473_data *data = adt7473_update_device(dev); | |
666 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
667 | } | |
668 | ||
669 | static ssize_t set_pwm_min(struct device *dev, | |
670 | struct device_attribute *devattr, | |
671 | const char *buf, | |
672 | size_t count) | |
673 | { | |
674 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
675 | struct i2c_client *client = to_i2c_client(dev); | |
676 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
677 | long temp; |
678 | ||
679 | if (strict_strtol(buf, 10, &temp)) | |
680 | return -EINVAL; | |
681 | ||
682 | temp = SENSORS_LIMIT(temp, 0, 255); | |
57df46d6 DW |
683 | |
684 | mutex_lock(&data->lock); | |
685 | data->pwm_min[attr->index] = temp; | |
686 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index), | |
687 | temp); | |
688 | mutex_unlock(&data->lock); | |
689 | ||
690 | return count; | |
691 | } | |
692 | ||
693 | static ssize_t show_temp_tmax(struct device *dev, | |
694 | struct device_attribute *devattr, | |
695 | char *buf) | |
696 | { | |
697 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
698 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
699 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
700 | data->temp_twos_complement, | |
701 | data->temp_tmax[attr->index])); | |
57df46d6 DW |
702 | } |
703 | ||
704 | static ssize_t set_temp_tmax(struct device *dev, | |
705 | struct device_attribute *devattr, | |
706 | const char *buf, | |
707 | size_t count) | |
708 | { | |
709 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
710 | struct i2c_client *client = to_i2c_client(dev); | |
711 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
712 | long temp; |
713 | ||
714 | if (strict_strtol(buf, 10, &temp)) | |
715 | return -EINVAL; | |
716 | ||
8f8c1fb0 | 717 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
18524486 | 718 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
719 | |
720 | mutex_lock(&data->lock); | |
721 | data->temp_tmax[attr->index] = temp; | |
722 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index), | |
723 | temp); | |
724 | mutex_unlock(&data->lock); | |
725 | ||
726 | return count; | |
727 | } | |
728 | ||
729 | static ssize_t show_temp_tmin(struct device *dev, | |
730 | struct device_attribute *devattr, | |
731 | char *buf) | |
732 | { | |
733 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
734 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
735 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
736 | data->temp_twos_complement, | |
737 | data->temp_tmin[attr->index])); | |
57df46d6 DW |
738 | } |
739 | ||
740 | static ssize_t set_temp_tmin(struct device *dev, | |
741 | struct device_attribute *devattr, | |
742 | const char *buf, | |
743 | size_t count) | |
744 | { | |
745 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
746 | struct i2c_client *client = to_i2c_client(dev); | |
747 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
748 | long temp; |
749 | ||
750 | if (strict_strtol(buf, 10, &temp)) | |
751 | return -EINVAL; | |
752 | ||
8f8c1fb0 | 753 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
18524486 | 754 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
755 | |
756 | mutex_lock(&data->lock); | |
757 | data->temp_tmin[attr->index] = temp; | |
758 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index), | |
759 | temp); | |
760 | mutex_unlock(&data->lock); | |
761 | ||
762 | return count; | |
763 | } | |
764 | ||
765 | static ssize_t show_pwm_enable(struct device *dev, | |
766 | struct device_attribute *devattr, | |
767 | char *buf) | |
768 | { | |
769 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
770 | struct adt7473_data *data = adt7473_update_device(dev); | |
771 | ||
772 | switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) { | |
773 | case 3: | |
774 | return sprintf(buf, "0\n"); | |
775 | case 7: | |
776 | return sprintf(buf, "1\n"); | |
777 | default: | |
778 | return sprintf(buf, "2\n"); | |
779 | } | |
780 | } | |
781 | ||
782 | static ssize_t set_pwm_enable(struct device *dev, | |
783 | struct device_attribute *devattr, | |
784 | const char *buf, | |
785 | size_t count) | |
786 | { | |
787 | u8 reg; | |
788 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
789 | struct i2c_client *client = to_i2c_client(dev); | |
790 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
791 | long temp; |
792 | ||
793 | if (strict_strtol(buf, 10, &temp)) | |
794 | return -EINVAL; | |
57df46d6 DW |
795 | |
796 | switch (temp) { | |
797 | case 0: | |
798 | temp = 3; | |
799 | break; | |
800 | case 1: | |
801 | temp = 7; | |
802 | break; | |
803 | case 2: | |
804 | /* Enter automatic mode with fans off */ | |
805 | temp = 4; | |
806 | break; | |
807 | default: | |
808 | return -EINVAL; | |
809 | } | |
810 | ||
811 | mutex_lock(&data->lock); | |
812 | reg = i2c_smbus_read_byte_data(client, | |
813 | ADT7473_REG_PWM_BHVR(attr->index)); | |
814 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
815 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
816 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
817 | reg); | |
818 | data->pwm_behavior[attr->index] = reg; | |
819 | mutex_unlock(&data->lock); | |
820 | ||
821 | return count; | |
822 | } | |
823 | ||
824 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
825 | struct device_attribute *devattr, | |
826 | char *buf) | |
827 | { | |
828 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
829 | struct adt7473_data *data = adt7473_update_device(dev); | |
830 | int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT; | |
831 | ||
832 | switch (bhvr) { | |
833 | case 3: | |
834 | case 4: | |
835 | case 7: | |
836 | return sprintf(buf, "0\n"); | |
837 | case 0: | |
838 | case 1: | |
839 | case 5: | |
840 | case 6: | |
841 | return sprintf(buf, "%d\n", bhvr + 1); | |
842 | case 2: | |
843 | return sprintf(buf, "4\n"); | |
844 | } | |
845 | /* shouldn't ever get here */ | |
846 | BUG(); | |
847 | } | |
848 | ||
849 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
850 | struct device_attribute *devattr, | |
851 | const char *buf, | |
852 | size_t count) | |
853 | { | |
854 | u8 reg; | |
855 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
856 | struct i2c_client *client = to_i2c_client(dev); | |
857 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
858 | long temp; |
859 | ||
860 | if (strict_strtol(buf, 10, &temp)) | |
861 | return -EINVAL; | |
57df46d6 DW |
862 | |
863 | switch (temp) { | |
864 | case 1: | |
865 | case 2: | |
866 | case 6: | |
867 | case 7: | |
868 | temp--; | |
869 | break; | |
870 | case 0: | |
871 | temp = 4; | |
872 | break; | |
873 | default: | |
874 | return -EINVAL; | |
875 | } | |
876 | ||
877 | mutex_lock(&data->lock); | |
878 | reg = i2c_smbus_read_byte_data(client, | |
879 | ADT7473_REG_PWM_BHVR(attr->index)); | |
880 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
881 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
882 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
883 | reg); | |
884 | data->pwm_behavior[attr->index] = reg; | |
885 | mutex_unlock(&data->lock); | |
886 | ||
887 | return count; | |
888 | } | |
889 | ||
890 | static ssize_t show_alarm(struct device *dev, | |
891 | struct device_attribute *devattr, | |
892 | char *buf) | |
893 | { | |
894 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
895 | struct adt7473_data *data = adt7473_update_device(dev); | |
896 | ||
897 | if (data->alarm & attr->index) | |
898 | return sprintf(buf, "1\n"); | |
899 | else | |
900 | return sprintf(buf, "0\n"); | |
901 | } | |
902 | ||
903 | ||
904 | static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max, | |
905 | set_volt_max, 0); | |
906 | static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max, | |
907 | set_volt_max, 1); | |
908 | ||
909 | static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min, | |
910 | set_volt_min, 0); | |
911 | static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min, | |
912 | set_volt_min, 1); | |
913 | ||
914 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0); | |
915 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1); | |
916 | ||
917 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, | |
918 | ADT7473_VCCP_ALARM); | |
919 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, | |
920 | ADT7473_VCC_ALARM); | |
921 | ||
922 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
923 | set_temp_max, 0); | |
924 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
925 | set_temp_max, 1); | |
926 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
927 | set_temp_max, 2); | |
928 | ||
929 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
930 | set_temp_min, 0); | |
931 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
932 | set_temp_min, 1); | |
933 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
934 | set_temp_min, 2); | |
935 | ||
936 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
937 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
938 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
939 | ||
940 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, | |
941 | ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT)); | |
942 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
943 | ADT7473_LT_ALARM); | |
944 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
945 | ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT)); | |
946 | ||
947 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
948 | set_fan_min, 0); | |
949 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
950 | set_fan_min, 1); | |
951 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
952 | set_fan_min, 2); | |
953 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
954 | set_fan_min, 3); | |
955 | ||
956 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
957 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
958 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
959 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
960 | ||
961 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, | |
962 | ALARM2(ADT7473_FAN1_ALARM)); | |
963 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
964 | ALARM2(ADT7473_FAN2_ALARM)); | |
965 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
966 | ALARM2(ADT7473_FAN3_ALARM)); | |
967 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
968 | ALARM2(ADT7473_FAN4_ALARM)); | |
969 | ||
970 | static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO, | |
971 | show_max_duty_at_crit, set_max_duty_at_crit, 0); | |
972 | ||
973 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
974 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
975 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
976 | ||
977 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
978 | show_pwm_min, set_pwm_min, 0); | |
979 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
980 | show_pwm_min, set_pwm_min, 1); | |
981 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
982 | show_pwm_min, set_pwm_min, 2); | |
983 | ||
984 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
985 | show_pwm_max, set_pwm_max, 0); | |
986 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
987 | show_pwm_max, set_pwm_max, 1); | |
988 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
989 | show_pwm_max, set_pwm_max, 2); | |
990 | ||
991 | static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
992 | show_temp_tmin, set_temp_tmin, 0); | |
993 | static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
994 | show_temp_tmin, set_temp_tmin, 1); | |
995 | static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
996 | show_temp_tmin, set_temp_tmin, 2); | |
997 | ||
998 | static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO, | |
999 | show_temp_tmax, set_temp_tmax, 0); | |
1000 | static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO, | |
1001 | show_temp_tmax, set_temp_tmax, 1); | |
1002 | static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO, | |
1003 | show_temp_tmax, set_temp_tmax, 2); | |
1004 | ||
1005 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1006 | set_pwm_enable, 0); | |
1007 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1008 | set_pwm_enable, 1); | |
1009 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1010 | set_pwm_enable, 2); | |
1011 | ||
1012 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1013 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
1014 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1015 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
1016 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1017 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
1018 | ||
1019 | static struct attribute *adt7473_attr[] = | |
1020 | { | |
1021 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1022 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1023 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1024 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1025 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1026 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1027 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1028 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1029 | ||
1030 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1031 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1032 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1033 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1034 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1035 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1036 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1037 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1038 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1039 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, | |
1040 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1041 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1042 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, | |
1043 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, | |
1044 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, | |
1045 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, | |
1046 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, | |
1047 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, | |
1048 | ||
1049 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1050 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1051 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1052 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1053 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1054 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1055 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1056 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1057 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
1058 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1059 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1060 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
1061 | ||
1062 | &sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr, | |
1063 | ||
1064 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1065 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1066 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1067 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1068 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1069 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1070 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1071 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1072 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1073 | ||
1074 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1075 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1076 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1077 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1078 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1079 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1080 | ||
1081 | NULL | |
1082 | }; | |
1083 | ||
eea54766 | 1084 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1085 | static int adt7473_detect(struct i2c_client *client, |
eea54766 | 1086 | struct i2c_board_info *info) |
57df46d6 | 1087 | { |
eea54766 | 1088 | struct i2c_adapter *adapter = client->adapter; |
52df6440 | 1089 | int vendor, device, revision; |
57df46d6 DW |
1090 | |
1091 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
eea54766 | 1092 | return -ENODEV; |
57df46d6 | 1093 | |
52df6440 JD |
1094 | vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR); |
1095 | if (vendor != ADT7473_VENDOR) | |
1096 | return -ENODEV; | |
57df46d6 | 1097 | |
52df6440 JD |
1098 | device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE); |
1099 | if (device != ADT7473_DEVICE) | |
1100 | return -ENODEV; | |
57df46d6 | 1101 | |
52df6440 JD |
1102 | revision = i2c_smbus_read_byte_data(client, ADT7473_REG_REVISION); |
1103 | if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69) | |
1104 | return -ENODEV; | |
57df46d6 | 1105 | |
eea54766 | 1106 | strlcpy(info->type, "adt7473", I2C_NAME_SIZE); |
57df46d6 | 1107 | |
eea54766 JD |
1108 | return 0; |
1109 | } | |
1110 | ||
1111 | static int adt7473_probe(struct i2c_client *client, | |
1112 | const struct i2c_device_id *id) | |
1113 | { | |
1114 | struct adt7473_data *data; | |
1115 | int err; | |
1116 | ||
1117 | data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL); | |
1118 | if (!data) { | |
1119 | err = -ENOMEM; | |
1120 | goto exit; | |
1121 | } | |
1122 | ||
1123 | i2c_set_clientdata(client, data); | |
1124 | mutex_init(&data->lock); | |
57df46d6 DW |
1125 | |
1126 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1127 | ||
1128 | /* Initialize the ADT7473 chip */ | |
1129 | adt7473_init_client(client); | |
1130 | ||
1131 | /* Register sysfs hooks */ | |
1132 | data->attrs.attrs = adt7473_attr; | |
1133 | err = sysfs_create_group(&client->dev.kobj, &data->attrs); | |
1134 | if (err) | |
eea54766 | 1135 | goto exit_free; |
57df46d6 DW |
1136 | |
1137 | data->hwmon_dev = hwmon_device_register(&client->dev); | |
1138 | if (IS_ERR(data->hwmon_dev)) { | |
1139 | err = PTR_ERR(data->hwmon_dev); | |
1140 | goto exit_remove; | |
1141 | } | |
1142 | ||
1143 | return 0; | |
1144 | ||
1145 | exit_remove: | |
1146 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
57df46d6 DW |
1147 | exit_free: |
1148 | kfree(data); | |
1149 | exit: | |
1150 | return err; | |
1151 | } | |
1152 | ||
eea54766 | 1153 | static int adt7473_remove(struct i2c_client *client) |
57df46d6 DW |
1154 | { |
1155 | struct adt7473_data *data = i2c_get_clientdata(client); | |
1156 | ||
1157 | hwmon_device_unregister(data->hwmon_dev); | |
1158 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
57df46d6 DW |
1159 | kfree(data); |
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int __init adt7473_init(void) | |
1164 | { | |
b180d050 JD |
1165 | pr_notice("The adt7473 driver is deprecated, please use the adt7475 " |
1166 | "driver instead\n"); | |
57df46d6 DW |
1167 | return i2c_add_driver(&adt7473_driver); |
1168 | } | |
1169 | ||
1170 | static void __exit adt7473_exit(void) | |
1171 | { | |
1172 | i2c_del_driver(&adt7473_driver); | |
1173 | } | |
1174 | ||
1175 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1176 | MODULE_DESCRIPTION("ADT7473 driver"); | |
1177 | MODULE_LICENSE("GPL"); | |
1178 | ||
1179 | module_init(adt7473_init); | |
1180 | module_exit(adt7473_exit); |