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