]>
Commit | Line | Data |
---|---|---|
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 DW |
34 | |
35 | /* Insmod parameters */ | |
36 | I2C_CLIENT_INSMOD_1(adt7473); | |
37 | ||
38 | /* ADT7473 registers */ | |
39 | #define ADT7473_REG_BASE_ADDR 0x20 | |
40 | ||
41 | #define ADT7473_REG_VOLT_BASE_ADDR 0x21 | |
57df46d6 | 42 | #define ADT7473_REG_VOLT_MIN_BASE_ADDR 0x46 |
57df46d6 DW |
43 | |
44 | #define ADT7473_REG_TEMP_BASE_ADDR 0x25 | |
57df46d6 | 45 | #define ADT7473_REG_TEMP_LIMITS_BASE_ADDR 0x4E |
57df46d6 | 46 | #define ADT7473_REG_TEMP_TMIN_BASE_ADDR 0x67 |
57df46d6 | 47 | #define ADT7473_REG_TEMP_TMAX_BASE_ADDR 0x6A |
57df46d6 DW |
48 | |
49 | #define ADT7473_REG_FAN_BASE_ADDR 0x28 | |
57df46d6 | 50 | #define ADT7473_REG_FAN_MIN_BASE_ADDR 0x54 |
57df46d6 DW |
51 | |
52 | #define ADT7473_REG_PWM_BASE_ADDR 0x30 | |
57df46d6 | 53 | #define ADT7473_REG_PWM_MIN_BASE_ADDR 0x64 |
57df46d6 | 54 | #define ADT7473_REG_PWM_MAX_BASE_ADDR 0x38 |
57df46d6 | 55 | #define ADT7473_REG_PWM_BHVR_BASE_ADDR 0x5C |
57df46d6 DW |
56 | #define ADT7473_PWM_BHVR_MASK 0xE0 |
57 | #define ADT7473_PWM_BHVR_SHIFT 5 | |
58 | ||
59 | #define ADT7473_REG_CFG1 0x40 | |
60 | #define ADT7473_CFG1_START 0x01 | |
61 | #define ADT7473_CFG1_READY 0x04 | |
62 | #define ADT7473_REG_CFG2 0x73 | |
63 | #define ADT7473_REG_CFG3 0x78 | |
64 | #define ADT7473_REG_CFG4 0x7D | |
65 | #define ADT7473_CFG4_MAX_DUTY_AT_OVT 0x08 | |
66 | #define ADT7473_REG_CFG5 0x7C | |
67 | #define ADT7473_CFG5_TEMP_TWOS 0x01 | |
68 | #define ADT7473_CFG5_TEMP_OFFSET 0x02 | |
69 | ||
70 | #define ADT7473_REG_DEVICE 0x3D | |
71 | #define ADT7473_VENDOR 0x41 | |
72 | #define ADT7473_REG_VENDOR 0x3E | |
73 | #define ADT7473_DEVICE 0x73 | |
74 | #define ADT7473_REG_REVISION 0x3F | |
75 | #define ADT7473_REV_68 0x68 | |
76 | #define ADT7473_REV_69 0x69 | |
77 | ||
78 | #define ADT7473_REG_ALARM1 0x41 | |
79 | #define ADT7473_VCCP_ALARM 0x02 | |
80 | #define ADT7473_VCC_ALARM 0x04 | |
81 | #define ADT7473_R1T_ALARM 0x10 | |
82 | #define ADT7473_LT_ALARM 0x20 | |
83 | #define ADT7473_R2T_ALARM 0x40 | |
84 | #define ADT7473_OOL 0x80 | |
85 | #define ADT7473_REG_ALARM2 0x42 | |
86 | #define ADT7473_OVT_ALARM 0x02 | |
87 | #define ADT7473_FAN1_ALARM 0x04 | |
88 | #define ADT7473_FAN2_ALARM 0x08 | |
89 | #define ADT7473_FAN3_ALARM 0x10 | |
90 | #define ADT7473_FAN4_ALARM 0x20 | |
91 | #define ADT7473_R1T_SHORT 0x40 | |
92 | #define ADT7473_R2T_SHORT 0x80 | |
57df46d6 DW |
93 | |
94 | #define ALARM2(x) ((x) << 8) | |
95 | ||
96 | #define ADT7473_VOLT_COUNT 2 | |
97 | #define ADT7473_REG_VOLT(x) (ADT7473_REG_VOLT_BASE_ADDR + (x)) | |
98 | #define ADT7473_REG_VOLT_MIN(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + ((x) * 2)) | |
99 | #define ADT7473_REG_VOLT_MAX(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + \ | |
100 | ((x) * 2) + 1) | |
101 | ||
102 | #define ADT7473_TEMP_COUNT 3 | |
103 | #define ADT7473_REG_TEMP(x) (ADT7473_REG_TEMP_BASE_ADDR + (x)) | |
104 | #define ADT7473_REG_TEMP_MIN(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
105 | #define ADT7473_REG_TEMP_MAX(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + \ | |
106 | ((x) * 2) + 1) | |
107 | #define ADT7473_REG_TEMP_TMIN(x) (ADT7473_REG_TEMP_TMIN_BASE_ADDR + (x)) | |
108 | #define ADT7473_REG_TEMP_TMAX(x) (ADT7473_REG_TEMP_TMAX_BASE_ADDR + (x)) | |
109 | ||
110 | #define ADT7473_FAN_COUNT 4 | |
111 | #define ADT7473_REG_FAN(x) (ADT7473_REG_FAN_BASE_ADDR + ((x) * 2)) | |
112 | #define ADT7473_REG_FAN_MIN(x) (ADT7473_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
113 | ||
114 | #define ADT7473_PWM_COUNT 3 | |
115 | #define ADT7473_REG_PWM(x) (ADT7473_REG_PWM_BASE_ADDR + (x)) | |
116 | #define ADT7473_REG_PWM_MAX(x) (ADT7473_REG_PWM_MAX_BASE_ADDR + (x)) | |
117 | #define ADT7473_REG_PWM_MIN(x) (ADT7473_REG_PWM_MIN_BASE_ADDR + (x)) | |
118 | #define ADT7473_REG_PWM_BHVR(x) (ADT7473_REG_PWM_BHVR_BASE_ADDR + (x)) | |
119 | ||
120 | /* How often do we reread sensors values? (In jiffies) */ | |
121 | #define SENSOR_REFRESH_INTERVAL (2 * HZ) | |
122 | ||
123 | /* How often do we reread sensor limit values? (In jiffies) */ | |
124 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
125 | ||
126 | /* datasheet says to divide this number by the fan reading to get fan rpm */ | |
127 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
128 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
129 | #define FAN_PERIOD_INVALID 65535 | |
130 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
131 | ||
862343c4 DW |
132 | #define ROUND_DIV(x, divisor) (((x) + ((divisor) / 2)) / (divisor)) |
133 | ||
57df46d6 | 134 | struct adt7473_data { |
57df46d6 DW |
135 | struct device *hwmon_dev; |
136 | struct attribute_group attrs; | |
137 | struct mutex lock; | |
138 | char sensors_valid; | |
139 | char limits_valid; | |
140 | unsigned long sensors_last_updated; /* In jiffies */ | |
141 | unsigned long limits_last_updated; /* In jiffies */ | |
142 | ||
143 | u8 volt[ADT7473_VOLT_COUNT]; | |
144 | s8 volt_min[ADT7473_VOLT_COUNT]; | |
145 | s8 volt_max[ADT7473_VOLT_COUNT]; | |
146 | ||
147 | s8 temp[ADT7473_TEMP_COUNT]; | |
148 | s8 temp_min[ADT7473_TEMP_COUNT]; | |
149 | s8 temp_max[ADT7473_TEMP_COUNT]; | |
150 | s8 temp_tmin[ADT7473_TEMP_COUNT]; | |
151 | /* This is called the !THERM limit in the datasheet */ | |
152 | s8 temp_tmax[ADT7473_TEMP_COUNT]; | |
153 | ||
154 | u16 fan[ADT7473_FAN_COUNT]; | |
155 | u16 fan_min[ADT7473_FAN_COUNT]; | |
156 | ||
157 | u8 pwm[ADT7473_PWM_COUNT]; | |
158 | u8 pwm_max[ADT7473_PWM_COUNT]; | |
159 | u8 pwm_min[ADT7473_PWM_COUNT]; | |
160 | u8 pwm_behavior[ADT7473_PWM_COUNT]; | |
161 | ||
162 | u8 temp_twos_complement; | |
163 | u8 temp_offset; | |
164 | ||
165 | u16 alarm; | |
166 | u8 max_duty_at_overheat; | |
167 | }; | |
168 | ||
eea54766 JD |
169 | static int adt7473_probe(struct i2c_client *client, |
170 | const struct i2c_device_id *id); | |
171 | static int adt7473_detect(struct i2c_client *client, int kind, | |
172 | struct i2c_board_info *info); | |
173 | static int adt7473_remove(struct i2c_client *client); | |
174 | ||
175 | static const struct i2c_device_id adt7473_id[] = { | |
176 | { "adt7473", adt7473 }, | |
177 | { } | |
178 | }; | |
179 | MODULE_DEVICE_TABLE(i2c, adt7473_id); | |
57df46d6 DW |
180 | |
181 | static struct i2c_driver adt7473_driver = { | |
eea54766 | 182 | .class = I2C_CLASS_HWMON, |
57df46d6 DW |
183 | .driver = { |
184 | .name = "adt7473", | |
185 | }, | |
eea54766 JD |
186 | .probe = adt7473_probe, |
187 | .remove = adt7473_remove, | |
188 | .id_table = adt7473_id, | |
189 | .detect = adt7473_detect, | |
190 | .address_data = &addr_data, | |
57df46d6 DW |
191 | }; |
192 | ||
193 | /* | |
194 | * 16-bit registers on the ADT7473 are low-byte first. The data sheet says | |
195 | * that the low byte must be read before the high byte. | |
196 | */ | |
197 | static inline int adt7473_read_word_data(struct i2c_client *client, u8 reg) | |
198 | { | |
199 | u16 foo; | |
200 | foo = i2c_smbus_read_byte_data(client, reg); | |
201 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
202 | return foo; | |
203 | } | |
204 | ||
205 | static inline int adt7473_write_word_data(struct i2c_client *client, u8 reg, | |
206 | u16 value) | |
207 | { | |
208 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
209 | && i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
210 | } | |
211 | ||
212 | static void adt7473_init_client(struct i2c_client *client) | |
213 | { | |
214 | int reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG1); | |
215 | ||
216 | if (!(reg & ADT7473_CFG1_READY)) { | |
217 | dev_err(&client->dev, "Chip not ready.\n"); | |
218 | } else { | |
219 | /* start monitoring */ | |
220 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG1, | |
221 | reg | ADT7473_CFG1_START); | |
222 | } | |
223 | } | |
224 | ||
225 | static struct adt7473_data *adt7473_update_device(struct device *dev) | |
226 | { | |
227 | struct i2c_client *client = to_i2c_client(dev); | |
228 | struct adt7473_data *data = i2c_get_clientdata(client); | |
229 | unsigned long local_jiffies = jiffies; | |
230 | u8 cfg; | |
231 | int i; | |
232 | ||
233 | mutex_lock(&data->lock); | |
234 | if (time_before(local_jiffies, data->sensors_last_updated + | |
235 | SENSOR_REFRESH_INTERVAL) | |
236 | && data->sensors_valid) | |
237 | goto no_sensor_update; | |
238 | ||
239 | for (i = 0; i < ADT7473_VOLT_COUNT; i++) | |
240 | data->volt[i] = i2c_smbus_read_byte_data(client, | |
241 | ADT7473_REG_VOLT(i)); | |
242 | ||
243 | /* Determine temperature encoding */ | |
244 | cfg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG5); | |
245 | data->temp_twos_complement = (cfg & ADT7473_CFG5_TEMP_TWOS); | |
246 | ||
247 | /* | |
248 | * What does this do? it implies a variable temperature sensor | |
249 | * offset, but the datasheet doesn't say anything about this bit | |
250 | * and other parts of the datasheet imply that "offset64" mode | |
251 | * means that you shift temp values by -64 if the above bit was set. | |
252 | */ | |
253 | data->temp_offset = (cfg & ADT7473_CFG5_TEMP_OFFSET); | |
254 | ||
255 | for (i = 0; i < ADT7473_TEMP_COUNT; i++) | |
256 | data->temp[i] = i2c_smbus_read_byte_data(client, | |
257 | ADT7473_REG_TEMP(i)); | |
258 | ||
259 | for (i = 0; i < ADT7473_FAN_COUNT; i++) | |
260 | data->fan[i] = adt7473_read_word_data(client, | |
261 | ADT7473_REG_FAN(i)); | |
262 | ||
263 | for (i = 0; i < ADT7473_PWM_COUNT; i++) | |
264 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
265 | ADT7473_REG_PWM(i)); | |
266 | ||
267 | data->alarm = i2c_smbus_read_byte_data(client, ADT7473_REG_ALARM1); | |
268 | if (data->alarm & ADT7473_OOL) | |
269 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
270 | ADT7473_REG_ALARM2)); | |
271 | ||
272 | data->sensors_last_updated = local_jiffies; | |
273 | data->sensors_valid = 1; | |
274 | ||
275 | no_sensor_update: | |
276 | if (time_before(local_jiffies, data->limits_last_updated + | |
277 | LIMIT_REFRESH_INTERVAL) | |
278 | && data->limits_valid) | |
279 | goto out; | |
280 | ||
281 | for (i = 0; i < ADT7473_VOLT_COUNT; i++) { | |
282 | data->volt_min[i] = i2c_smbus_read_byte_data(client, | |
283 | ADT7473_REG_VOLT_MIN(i)); | |
284 | data->volt_max[i] = i2c_smbus_read_byte_data(client, | |
285 | ADT7473_REG_VOLT_MAX(i)); | |
286 | } | |
287 | ||
288 | for (i = 0; i < ADT7473_TEMP_COUNT; i++) { | |
289 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
290 | ADT7473_REG_TEMP_MIN(i)); | |
291 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
292 | ADT7473_REG_TEMP_MAX(i)); | |
293 | data->temp_tmin[i] = i2c_smbus_read_byte_data(client, | |
294 | ADT7473_REG_TEMP_TMIN(i)); | |
295 | data->temp_tmax[i] = i2c_smbus_read_byte_data(client, | |
296 | ADT7473_REG_TEMP_TMAX(i)); | |
297 | } | |
298 | ||
299 | for (i = 0; i < ADT7473_FAN_COUNT; i++) | |
300 | data->fan_min[i] = adt7473_read_word_data(client, | |
301 | ADT7473_REG_FAN_MIN(i)); | |
302 | ||
303 | for (i = 0; i < ADT7473_PWM_COUNT; i++) { | |
304 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
305 | ADT7473_REG_PWM_MAX(i)); | |
306 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
307 | ADT7473_REG_PWM_MIN(i)); | |
308 | data->pwm_behavior[i] = i2c_smbus_read_byte_data(client, | |
309 | ADT7473_REG_PWM_BHVR(i)); | |
310 | } | |
311 | ||
ed4ec814 JD |
312 | i = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); |
313 | data->max_duty_at_overheat = !!(i & ADT7473_CFG4_MAX_DUTY_AT_OVT); | |
314 | ||
57df46d6 DW |
315 | data->limits_last_updated = local_jiffies; |
316 | data->limits_valid = 1; | |
317 | ||
318 | out: | |
319 | mutex_unlock(&data->lock); | |
320 | return data; | |
321 | } | |
322 | ||
323 | /* | |
be821b78 | 324 | * Conversions |
57df46d6 | 325 | */ |
be821b78 JD |
326 | |
327 | /* IN are scaled acording to built-in resistors */ | |
328 | static const int adt7473_scaling[] = { /* .001 Volts */ | |
329 | 2250, 3300 | |
57df46d6 | 330 | }; |
be821b78 | 331 | #define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from)) |
57df46d6 DW |
332 | |
333 | static int decode_volt(int volt_index, u8 raw) | |
334 | { | |
be821b78 | 335 | return SCALE(raw, 192, adt7473_scaling[volt_index]); |
57df46d6 DW |
336 | } |
337 | ||
338 | static u8 encode_volt(int volt_index, int cooked) | |
339 | { | |
be821b78 JD |
340 | int raw = SCALE(cooked, adt7473_scaling[volt_index], 192); |
341 | return SENSORS_LIMIT(raw, 0, 255); | |
57df46d6 DW |
342 | } |
343 | ||
344 | static ssize_t show_volt_min(struct device *dev, | |
345 | struct device_attribute *devattr, | |
346 | char *buf) | |
347 | { | |
348 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
349 | struct adt7473_data *data = adt7473_update_device(dev); | |
350 | return sprintf(buf, "%d\n", | |
351 | decode_volt(attr->index, data->volt_min[attr->index])); | |
352 | } | |
353 | ||
354 | static ssize_t set_volt_min(struct device *dev, | |
355 | struct device_attribute *devattr, | |
356 | const char *buf, | |
357 | size_t count) | |
358 | { | |
359 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
360 | struct i2c_client *client = to_i2c_client(dev); | |
361 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
362 | long volt; |
363 | ||
364 | if (strict_strtol(buf, 10, &volt)) | |
365 | return -EINVAL; | |
366 | ||
367 | volt = encode_volt(attr->index, volt); | |
57df46d6 DW |
368 | |
369 | mutex_lock(&data->lock); | |
370 | data->volt_min[attr->index] = volt; | |
371 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index), | |
372 | volt); | |
373 | mutex_unlock(&data->lock); | |
374 | ||
375 | return count; | |
376 | } | |
377 | ||
378 | static ssize_t show_volt_max(struct device *dev, | |
379 | struct device_attribute *devattr, | |
380 | char *buf) | |
381 | { | |
382 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
383 | struct adt7473_data *data = adt7473_update_device(dev); | |
384 | return sprintf(buf, "%d\n", | |
385 | decode_volt(attr->index, data->volt_max[attr->index])); | |
386 | } | |
387 | ||
388 | static ssize_t set_volt_max(struct device *dev, | |
389 | struct device_attribute *devattr, | |
390 | const char *buf, | |
391 | size_t count) | |
392 | { | |
393 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
394 | struct i2c_client *client = to_i2c_client(dev); | |
395 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
396 | long volt; |
397 | ||
398 | if (strict_strtol(buf, 10, &volt)) | |
399 | return -EINVAL; | |
400 | ||
401 | volt = encode_volt(attr->index, volt); | |
57df46d6 DW |
402 | |
403 | mutex_lock(&data->lock); | |
404 | data->volt_max[attr->index] = volt; | |
405 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index), | |
406 | volt); | |
407 | mutex_unlock(&data->lock); | |
408 | ||
409 | return count; | |
410 | } | |
411 | ||
412 | static ssize_t show_volt(struct device *dev, struct device_attribute *devattr, | |
413 | char *buf) | |
414 | { | |
415 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
416 | struct adt7473_data *data = adt7473_update_device(dev); | |
417 | ||
418 | return sprintf(buf, "%d\n", | |
419 | decode_volt(attr->index, data->volt[attr->index])); | |
420 | } | |
421 | ||
422 | /* | |
423 | * This chip can report temperature data either as a two's complement | |
424 | * number in the range -128 to 127, or as an unsigned number that must | |
425 | * be offset by 64. | |
426 | */ | |
18524486 | 427 | static int decode_temp(u8 twos_complement, u8 raw) |
57df46d6 | 428 | { |
18524486 | 429 | return twos_complement ? (s8)raw : raw - 64; |
57df46d6 DW |
430 | } |
431 | ||
18524486 | 432 | static u8 encode_temp(u8 twos_complement, int cooked) |
57df46d6 | 433 | { |
862343c4 DW |
434 | u8 ret = twos_complement ? cooked & 0xFF : cooked + 64; |
435 | return SENSORS_LIMIT(ret, 0, 255); | |
57df46d6 DW |
436 | } |
437 | ||
438 | static ssize_t show_temp_min(struct device *dev, | |
439 | struct device_attribute *devattr, | |
440 | char *buf) | |
441 | { | |
442 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
443 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
444 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
445 | data->temp_twos_complement, | |
446 | data->temp_min[attr->index])); | |
57df46d6 DW |
447 | } |
448 | ||
449 | static ssize_t set_temp_min(struct device *dev, | |
450 | struct device_attribute *devattr, | |
451 | const char *buf, | |
452 | size_t count) | |
453 | { | |
454 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
455 | struct i2c_client *client = to_i2c_client(dev); | |
456 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
457 | long temp; |
458 | ||
459 | if (strict_strtol(buf, 10, &temp)) | |
460 | return -EINVAL; | |
461 | ||
462 | temp = ROUND_DIV(temp, 1000); | |
18524486 | 463 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
464 | |
465 | mutex_lock(&data->lock); | |
466 | data->temp_min[attr->index] = temp; | |
467 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index), | |
468 | temp); | |
469 | mutex_unlock(&data->lock); | |
470 | ||
471 | return count; | |
472 | } | |
473 | ||
474 | static ssize_t show_temp_max(struct device *dev, | |
475 | struct device_attribute *devattr, | |
476 | char *buf) | |
477 | { | |
478 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
479 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
480 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
481 | data->temp_twos_complement, | |
482 | data->temp_max[attr->index])); | |
57df46d6 DW |
483 | } |
484 | ||
485 | static ssize_t set_temp_max(struct device *dev, | |
486 | struct device_attribute *devattr, | |
487 | const char *buf, | |
488 | size_t count) | |
489 | { | |
490 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
491 | struct i2c_client *client = to_i2c_client(dev); | |
492 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
493 | long temp; |
494 | ||
495 | if (strict_strtol(buf, 10, &temp)) | |
496 | return -EINVAL; | |
497 | ||
498 | temp = ROUND_DIV(temp, 1000); | |
18524486 | 499 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
500 | |
501 | mutex_lock(&data->lock); | |
502 | data->temp_max[attr->index] = temp; | |
503 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index), | |
504 | temp); | |
505 | mutex_unlock(&data->lock); | |
506 | ||
507 | return count; | |
508 | } | |
509 | ||
510 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
511 | char *buf) | |
512 | { | |
513 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
514 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
515 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
516 | data->temp_twos_complement, | |
517 | data->temp[attr->index])); | |
57df46d6 DW |
518 | } |
519 | ||
520 | static ssize_t show_fan_min(struct device *dev, | |
521 | struct device_attribute *devattr, | |
522 | char *buf) | |
523 | { | |
524 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
525 | struct adt7473_data *data = adt7473_update_device(dev); | |
526 | ||
527 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
528 | return sprintf(buf, "%d\n", | |
529 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
530 | else | |
531 | return sprintf(buf, "0\n"); | |
532 | } | |
533 | ||
534 | static ssize_t set_fan_min(struct device *dev, | |
535 | struct device_attribute *devattr, | |
536 | const char *buf, size_t count) | |
537 | { | |
538 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
539 | struct i2c_client *client = to_i2c_client(dev); | |
540 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 | 541 | long temp; |
57df46d6 | 542 | |
862343c4 | 543 | if (strict_strtol(buf, 10, &temp) || !temp) |
57df46d6 | 544 | return -EINVAL; |
862343c4 | 545 | |
57df46d6 | 546 | temp = FAN_RPM_TO_PERIOD(temp); |
862343c4 | 547 | temp = SENSORS_LIMIT(temp, 1, 65534); |
57df46d6 DW |
548 | |
549 | mutex_lock(&data->lock); | |
550 | data->fan_min[attr->index] = temp; | |
551 | adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp); | |
552 | mutex_unlock(&data->lock); | |
553 | ||
554 | return count; | |
555 | } | |
556 | ||
557 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
558 | char *buf) | |
559 | { | |
560 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
561 | struct adt7473_data *data = adt7473_update_device(dev); | |
562 | ||
563 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
564 | return sprintf(buf, "%d\n", | |
565 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
566 | else | |
567 | return sprintf(buf, "0\n"); | |
568 | } | |
569 | ||
570 | static ssize_t show_max_duty_at_crit(struct device *dev, | |
571 | struct device_attribute *devattr, | |
572 | char *buf) | |
573 | { | |
574 | struct adt7473_data *data = adt7473_update_device(dev); | |
575 | return sprintf(buf, "%d\n", data->max_duty_at_overheat); | |
576 | } | |
577 | ||
578 | static ssize_t set_max_duty_at_crit(struct device *dev, | |
579 | struct device_attribute *devattr, | |
580 | const char *buf, | |
581 | size_t count) | |
582 | { | |
583 | u8 reg; | |
584 | struct i2c_client *client = to_i2c_client(dev); | |
585 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
586 | long temp; |
587 | ||
588 | if (strict_strtol(buf, 10, &temp)) | |
589 | return -EINVAL; | |
57df46d6 DW |
590 | |
591 | mutex_lock(&data->lock); | |
321c4138 | 592 | data->max_duty_at_overheat = !!temp; |
57df46d6 DW |
593 | reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); |
594 | if (temp) | |
595 | reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
596 | else | |
597 | reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
598 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg); | |
599 | mutex_unlock(&data->lock); | |
600 | ||
601 | return count; | |
602 | } | |
603 | ||
604 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
605 | char *buf) | |
606 | { | |
607 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
608 | struct adt7473_data *data = adt7473_update_device(dev); | |
609 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
610 | } | |
611 | ||
612 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
613 | const char *buf, size_t count) | |
614 | { | |
615 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
616 | struct i2c_client *client = to_i2c_client(dev); | |
617 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
618 | long temp; |
619 | ||
620 | if (strict_strtol(buf, 10, &temp)) | |
621 | return -EINVAL; | |
622 | ||
623 | temp = SENSORS_LIMIT(temp, 0, 255); | |
57df46d6 DW |
624 | |
625 | mutex_lock(&data->lock); | |
626 | data->pwm[attr->index] = temp; | |
627 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp); | |
628 | mutex_unlock(&data->lock); | |
629 | ||
630 | return count; | |
631 | } | |
632 | ||
633 | static ssize_t show_pwm_max(struct device *dev, | |
634 | struct device_attribute *devattr, | |
635 | char *buf) | |
636 | { | |
637 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
638 | struct adt7473_data *data = adt7473_update_device(dev); | |
639 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
640 | } | |
641 | ||
642 | static ssize_t set_pwm_max(struct device *dev, | |
643 | struct device_attribute *devattr, | |
644 | const char *buf, | |
645 | size_t count) | |
646 | { | |
647 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
648 | struct i2c_client *client = to_i2c_client(dev); | |
649 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
650 | long temp; |
651 | ||
652 | if (strict_strtol(buf, 10, &temp)) | |
653 | return -EINVAL; | |
654 | ||
655 | temp = SENSORS_LIMIT(temp, 0, 255); | |
57df46d6 DW |
656 | |
657 | mutex_lock(&data->lock); | |
658 | data->pwm_max[attr->index] = temp; | |
659 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index), | |
660 | temp); | |
661 | mutex_unlock(&data->lock); | |
662 | ||
663 | return count; | |
664 | } | |
665 | ||
666 | static ssize_t show_pwm_min(struct device *dev, | |
667 | struct device_attribute *devattr, | |
668 | char *buf) | |
669 | { | |
670 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
671 | struct adt7473_data *data = adt7473_update_device(dev); | |
672 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
673 | } | |
674 | ||
675 | static ssize_t set_pwm_min(struct device *dev, | |
676 | struct device_attribute *devattr, | |
677 | const char *buf, | |
678 | size_t count) | |
679 | { | |
680 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
681 | struct i2c_client *client = to_i2c_client(dev); | |
682 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
683 | long temp; |
684 | ||
685 | if (strict_strtol(buf, 10, &temp)) | |
686 | return -EINVAL; | |
687 | ||
688 | temp = SENSORS_LIMIT(temp, 0, 255); | |
57df46d6 DW |
689 | |
690 | mutex_lock(&data->lock); | |
691 | data->pwm_min[attr->index] = temp; | |
692 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index), | |
693 | temp); | |
694 | mutex_unlock(&data->lock); | |
695 | ||
696 | return count; | |
697 | } | |
698 | ||
699 | static ssize_t show_temp_tmax(struct device *dev, | |
700 | struct device_attribute *devattr, | |
701 | char *buf) | |
702 | { | |
703 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
704 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
705 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
706 | data->temp_twos_complement, | |
707 | data->temp_tmax[attr->index])); | |
57df46d6 DW |
708 | } |
709 | ||
710 | static ssize_t set_temp_tmax(struct device *dev, | |
711 | struct device_attribute *devattr, | |
712 | const char *buf, | |
713 | size_t count) | |
714 | { | |
715 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
716 | struct i2c_client *client = to_i2c_client(dev); | |
717 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
718 | long temp; |
719 | ||
720 | if (strict_strtol(buf, 10, &temp)) | |
721 | return -EINVAL; | |
722 | ||
723 | temp = ROUND_DIV(temp, 1000); | |
18524486 | 724 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
725 | |
726 | mutex_lock(&data->lock); | |
727 | data->temp_tmax[attr->index] = temp; | |
728 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index), | |
729 | temp); | |
730 | mutex_unlock(&data->lock); | |
731 | ||
732 | return count; | |
733 | } | |
734 | ||
735 | static ssize_t show_temp_tmin(struct device *dev, | |
736 | struct device_attribute *devattr, | |
737 | char *buf) | |
738 | { | |
739 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
740 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
741 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
742 | data->temp_twos_complement, | |
743 | data->temp_tmin[attr->index])); | |
57df46d6 DW |
744 | } |
745 | ||
746 | static ssize_t set_temp_tmin(struct device *dev, | |
747 | struct device_attribute *devattr, | |
748 | const char *buf, | |
749 | size_t count) | |
750 | { | |
751 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
752 | struct i2c_client *client = to_i2c_client(dev); | |
753 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
754 | long temp; |
755 | ||
756 | if (strict_strtol(buf, 10, &temp)) | |
757 | return -EINVAL; | |
758 | ||
759 | temp = ROUND_DIV(temp, 1000); | |
18524486 | 760 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
761 | |
762 | mutex_lock(&data->lock); | |
763 | data->temp_tmin[attr->index] = temp; | |
764 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index), | |
765 | temp); | |
766 | mutex_unlock(&data->lock); | |
767 | ||
768 | return count; | |
769 | } | |
770 | ||
771 | static ssize_t show_pwm_enable(struct device *dev, | |
772 | struct device_attribute *devattr, | |
773 | char *buf) | |
774 | { | |
775 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
776 | struct adt7473_data *data = adt7473_update_device(dev); | |
777 | ||
778 | switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) { | |
779 | case 3: | |
780 | return sprintf(buf, "0\n"); | |
781 | case 7: | |
782 | return sprintf(buf, "1\n"); | |
783 | default: | |
784 | return sprintf(buf, "2\n"); | |
785 | } | |
786 | } | |
787 | ||
788 | static ssize_t set_pwm_enable(struct device *dev, | |
789 | struct device_attribute *devattr, | |
790 | const char *buf, | |
791 | size_t count) | |
792 | { | |
793 | u8 reg; | |
794 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
795 | struct i2c_client *client = to_i2c_client(dev); | |
796 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
797 | long temp; |
798 | ||
799 | if (strict_strtol(buf, 10, &temp)) | |
800 | return -EINVAL; | |
57df46d6 DW |
801 | |
802 | switch (temp) { | |
803 | case 0: | |
804 | temp = 3; | |
805 | break; | |
806 | case 1: | |
807 | temp = 7; | |
808 | break; | |
809 | case 2: | |
810 | /* Enter automatic mode with fans off */ | |
811 | temp = 4; | |
812 | break; | |
813 | default: | |
814 | return -EINVAL; | |
815 | } | |
816 | ||
817 | mutex_lock(&data->lock); | |
818 | reg = i2c_smbus_read_byte_data(client, | |
819 | ADT7473_REG_PWM_BHVR(attr->index)); | |
820 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
821 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
822 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
823 | reg); | |
824 | data->pwm_behavior[attr->index] = reg; | |
825 | mutex_unlock(&data->lock); | |
826 | ||
827 | return count; | |
828 | } | |
829 | ||
830 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
831 | struct device_attribute *devattr, | |
832 | char *buf) | |
833 | { | |
834 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
835 | struct adt7473_data *data = adt7473_update_device(dev); | |
836 | int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT; | |
837 | ||
838 | switch (bhvr) { | |
839 | case 3: | |
840 | case 4: | |
841 | case 7: | |
842 | return sprintf(buf, "0\n"); | |
843 | case 0: | |
844 | case 1: | |
845 | case 5: | |
846 | case 6: | |
847 | return sprintf(buf, "%d\n", bhvr + 1); | |
848 | case 2: | |
849 | return sprintf(buf, "4\n"); | |
850 | } | |
851 | /* shouldn't ever get here */ | |
852 | BUG(); | |
853 | } | |
854 | ||
855 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
856 | struct device_attribute *devattr, | |
857 | const char *buf, | |
858 | size_t count) | |
859 | { | |
860 | u8 reg; | |
861 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
862 | struct i2c_client *client = to_i2c_client(dev); | |
863 | struct adt7473_data *data = i2c_get_clientdata(client); | |
862343c4 DW |
864 | long temp; |
865 | ||
866 | if (strict_strtol(buf, 10, &temp)) | |
867 | return -EINVAL; | |
57df46d6 DW |
868 | |
869 | switch (temp) { | |
870 | case 1: | |
871 | case 2: | |
872 | case 6: | |
873 | case 7: | |
874 | temp--; | |
875 | break; | |
876 | case 0: | |
877 | temp = 4; | |
878 | break; | |
879 | default: | |
880 | return -EINVAL; | |
881 | } | |
882 | ||
883 | mutex_lock(&data->lock); | |
884 | reg = i2c_smbus_read_byte_data(client, | |
885 | ADT7473_REG_PWM_BHVR(attr->index)); | |
886 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
887 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
888 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
889 | reg); | |
890 | data->pwm_behavior[attr->index] = reg; | |
891 | mutex_unlock(&data->lock); | |
892 | ||
893 | return count; | |
894 | } | |
895 | ||
896 | static ssize_t show_alarm(struct device *dev, | |
897 | struct device_attribute *devattr, | |
898 | char *buf) | |
899 | { | |
900 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
901 | struct adt7473_data *data = adt7473_update_device(dev); | |
902 | ||
903 | if (data->alarm & attr->index) | |
904 | return sprintf(buf, "1\n"); | |
905 | else | |
906 | return sprintf(buf, "0\n"); | |
907 | } | |
908 | ||
909 | ||
910 | static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max, | |
911 | set_volt_max, 0); | |
912 | static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max, | |
913 | set_volt_max, 1); | |
914 | ||
915 | static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min, | |
916 | set_volt_min, 0); | |
917 | static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min, | |
918 | set_volt_min, 1); | |
919 | ||
920 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0); | |
921 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1); | |
922 | ||
923 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, | |
924 | ADT7473_VCCP_ALARM); | |
925 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, | |
926 | ADT7473_VCC_ALARM); | |
927 | ||
928 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
929 | set_temp_max, 0); | |
930 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
931 | set_temp_max, 1); | |
932 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
933 | set_temp_max, 2); | |
934 | ||
935 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
936 | set_temp_min, 0); | |
937 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
938 | set_temp_min, 1); | |
939 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
940 | set_temp_min, 2); | |
941 | ||
942 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
943 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
944 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
945 | ||
946 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, | |
947 | ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT)); | |
948 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
949 | ADT7473_LT_ALARM); | |
950 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
951 | ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT)); | |
952 | ||
953 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
954 | set_fan_min, 0); | |
955 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
956 | set_fan_min, 1); | |
957 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
958 | set_fan_min, 2); | |
959 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
960 | set_fan_min, 3); | |
961 | ||
962 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
963 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
964 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
965 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
966 | ||
967 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, | |
968 | ALARM2(ADT7473_FAN1_ALARM)); | |
969 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
970 | ALARM2(ADT7473_FAN2_ALARM)); | |
971 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
972 | ALARM2(ADT7473_FAN3_ALARM)); | |
973 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
974 | ALARM2(ADT7473_FAN4_ALARM)); | |
975 | ||
976 | static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO, | |
977 | show_max_duty_at_crit, set_max_duty_at_crit, 0); | |
978 | ||
979 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
980 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
981 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
982 | ||
983 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
984 | show_pwm_min, set_pwm_min, 0); | |
985 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
986 | show_pwm_min, set_pwm_min, 1); | |
987 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
988 | show_pwm_min, set_pwm_min, 2); | |
989 | ||
990 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
991 | show_pwm_max, set_pwm_max, 0); | |
992 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
993 | show_pwm_max, set_pwm_max, 1); | |
994 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
995 | show_pwm_max, set_pwm_max, 2); | |
996 | ||
997 | static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
998 | show_temp_tmin, set_temp_tmin, 0); | |
999 | static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1000 | show_temp_tmin, set_temp_tmin, 1); | |
1001 | static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1002 | show_temp_tmin, set_temp_tmin, 2); | |
1003 | ||
1004 | static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO, | |
1005 | show_temp_tmax, set_temp_tmax, 0); | |
1006 | static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO, | |
1007 | show_temp_tmax, set_temp_tmax, 1); | |
1008 | static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO, | |
1009 | show_temp_tmax, set_temp_tmax, 2); | |
1010 | ||
1011 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1012 | set_pwm_enable, 0); | |
1013 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1014 | set_pwm_enable, 1); | |
1015 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
1016 | set_pwm_enable, 2); | |
1017 | ||
1018 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1019 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
1020 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1021 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
1022 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1023 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
1024 | ||
1025 | static struct attribute *adt7473_attr[] = | |
1026 | { | |
1027 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
1028 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
1029 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
1030 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
1031 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
1032 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
1033 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1034 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1035 | ||
1036 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1037 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1038 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1039 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1040 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1041 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1042 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1043 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1044 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1045 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, | |
1046 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1047 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1048 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, | |
1049 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, | |
1050 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, | |
1051 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, | |
1052 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, | |
1053 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, | |
1054 | ||
1055 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1056 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1057 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1058 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1059 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1060 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1061 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1062 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1063 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
1064 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1065 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1066 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
1067 | ||
1068 | &sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr, | |
1069 | ||
1070 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1071 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1072 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1073 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1074 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1075 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1076 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1077 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1078 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1079 | ||
1080 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1081 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1082 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1083 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1084 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1085 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1086 | ||
1087 | NULL | |
1088 | }; | |
1089 | ||
eea54766 JD |
1090 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1091 | static int adt7473_detect(struct i2c_client *client, int kind, | |
1092 | struct i2c_board_info *info) | |
57df46d6 | 1093 | { |
eea54766 | 1094 | struct i2c_adapter *adapter = client->adapter; |
57df46d6 DW |
1095 | |
1096 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
eea54766 | 1097 | return -ENODEV; |
57df46d6 DW |
1098 | |
1099 | if (kind <= 0) { | |
1100 | int vendor, device, revision; | |
1101 | ||
1102 | vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR); | |
eea54766 JD |
1103 | if (vendor != ADT7473_VENDOR) |
1104 | return -ENODEV; | |
57df46d6 DW |
1105 | |
1106 | device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE); | |
eea54766 JD |
1107 | if (device != ADT7473_DEVICE) |
1108 | return -ENODEV; | |
57df46d6 DW |
1109 | |
1110 | revision = i2c_smbus_read_byte_data(client, | |
1111 | ADT7473_REG_REVISION); | |
eea54766 JD |
1112 | if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69) |
1113 | return -ENODEV; | |
57df46d6 DW |
1114 | } else |
1115 | dev_dbg(&adapter->dev, "detection forced\n"); | |
1116 | ||
eea54766 | 1117 | strlcpy(info->type, "adt7473", I2C_NAME_SIZE); |
57df46d6 | 1118 | |
eea54766 JD |
1119 | return 0; |
1120 | } | |
1121 | ||
1122 | static int adt7473_probe(struct i2c_client *client, | |
1123 | const struct i2c_device_id *id) | |
1124 | { | |
1125 | struct adt7473_data *data; | |
1126 | int err; | |
1127 | ||
1128 | data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL); | |
1129 | if (!data) { | |
1130 | err = -ENOMEM; | |
1131 | goto exit; | |
1132 | } | |
1133 | ||
1134 | i2c_set_clientdata(client, data); | |
1135 | mutex_init(&data->lock); | |
57df46d6 DW |
1136 | |
1137 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1138 | ||
1139 | /* Initialize the ADT7473 chip */ | |
1140 | adt7473_init_client(client); | |
1141 | ||
1142 | /* Register sysfs hooks */ | |
1143 | data->attrs.attrs = adt7473_attr; | |
1144 | err = sysfs_create_group(&client->dev.kobj, &data->attrs); | |
1145 | if (err) | |
eea54766 | 1146 | goto exit_free; |
57df46d6 DW |
1147 | |
1148 | data->hwmon_dev = hwmon_device_register(&client->dev); | |
1149 | if (IS_ERR(data->hwmon_dev)) { | |
1150 | err = PTR_ERR(data->hwmon_dev); | |
1151 | goto exit_remove; | |
1152 | } | |
1153 | ||
1154 | return 0; | |
1155 | ||
1156 | exit_remove: | |
1157 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
57df46d6 DW |
1158 | exit_free: |
1159 | kfree(data); | |
1160 | exit: | |
1161 | return err; | |
1162 | } | |
1163 | ||
eea54766 | 1164 | static int adt7473_remove(struct i2c_client *client) |
57df46d6 DW |
1165 | { |
1166 | struct adt7473_data *data = i2c_get_clientdata(client); | |
1167 | ||
1168 | hwmon_device_unregister(data->hwmon_dev); | |
1169 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
57df46d6 DW |
1170 | kfree(data); |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | static int __init adt7473_init(void) | |
1175 | { | |
1176 | return i2c_add_driver(&adt7473_driver); | |
1177 | } | |
1178 | ||
1179 | static void __exit adt7473_exit(void) | |
1180 | { | |
1181 | i2c_del_driver(&adt7473_driver); | |
1182 | } | |
1183 | ||
1184 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1185 | MODULE_DESCRIPTION("ADT7473 driver"); | |
1186 | MODULE_LICENSE("GPL"); | |
1187 | ||
1188 | module_init(adt7473_init); | |
1189 | module_exit(adt7473_exit); |