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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 | |
42 | #define ADT7473_REG_VOLT_MAX_ADDR 0x22 | |
43 | #define ADT7473_REG_VOLT_MIN_BASE_ADDR 0x46 | |
44 | #define ADT7473_REG_VOLT_MIN_MAX_ADDR 0x49 | |
45 | ||
46 | #define ADT7473_REG_TEMP_BASE_ADDR 0x25 | |
47 | #define ADT7473_REG_TEMP_MAX_ADDR 0x27 | |
48 | #define ADT7473_REG_TEMP_LIMITS_BASE_ADDR 0x4E | |
49 | #define ADT7473_REG_TEMP_LIMITS_MAX_ADDR 0x53 | |
50 | #define ADT7473_REG_TEMP_TMIN_BASE_ADDR 0x67 | |
51 | #define ADT7473_REG_TEMP_TMIN_MAX_ADDR 0x69 | |
52 | #define ADT7473_REG_TEMP_TMAX_BASE_ADDR 0x6A | |
53 | #define ADT7473_REG_TEMP_TMAX_MAX_ADDR 0x6C | |
54 | ||
55 | #define ADT7473_REG_FAN_BASE_ADDR 0x28 | |
56 | #define ADT7473_REG_FAN_MAX_ADDR 0x2F | |
57 | #define ADT7473_REG_FAN_MIN_BASE_ADDR 0x54 | |
58 | #define ADT7473_REG_FAN_MIN_MAX_ADDR 0x5B | |
59 | ||
60 | #define ADT7473_REG_PWM_BASE_ADDR 0x30 | |
61 | #define ADT7473_REG_PWM_MAX_ADDR 0x32 | |
62 | #define ADT7473_REG_PWM_MIN_BASE_ADDR 0x64 | |
63 | #define ADT7473_REG_PWM_MIN_MAX_ADDR 0x66 | |
64 | #define ADT7473_REG_PWM_MAX_BASE_ADDR 0x38 | |
65 | #define ADT7473_REG_PWM_MAX_MAX_ADDR 0x3A | |
66 | #define ADT7473_REG_PWM_BHVR_BASE_ADDR 0x5C | |
67 | #define ADT7473_REG_PWM_BHVR_MAX_ADDR 0x5E | |
68 | #define ADT7473_PWM_BHVR_MASK 0xE0 | |
69 | #define ADT7473_PWM_BHVR_SHIFT 5 | |
70 | ||
71 | #define ADT7473_REG_CFG1 0x40 | |
72 | #define ADT7473_CFG1_START 0x01 | |
73 | #define ADT7473_CFG1_READY 0x04 | |
74 | #define ADT7473_REG_CFG2 0x73 | |
75 | #define ADT7473_REG_CFG3 0x78 | |
76 | #define ADT7473_REG_CFG4 0x7D | |
77 | #define ADT7473_CFG4_MAX_DUTY_AT_OVT 0x08 | |
78 | #define ADT7473_REG_CFG5 0x7C | |
79 | #define ADT7473_CFG5_TEMP_TWOS 0x01 | |
80 | #define ADT7473_CFG5_TEMP_OFFSET 0x02 | |
81 | ||
82 | #define ADT7473_REG_DEVICE 0x3D | |
83 | #define ADT7473_VENDOR 0x41 | |
84 | #define ADT7473_REG_VENDOR 0x3E | |
85 | #define ADT7473_DEVICE 0x73 | |
86 | #define ADT7473_REG_REVISION 0x3F | |
87 | #define ADT7473_REV_68 0x68 | |
88 | #define ADT7473_REV_69 0x69 | |
89 | ||
90 | #define ADT7473_REG_ALARM1 0x41 | |
91 | #define ADT7473_VCCP_ALARM 0x02 | |
92 | #define ADT7473_VCC_ALARM 0x04 | |
93 | #define ADT7473_R1T_ALARM 0x10 | |
94 | #define ADT7473_LT_ALARM 0x20 | |
95 | #define ADT7473_R2T_ALARM 0x40 | |
96 | #define ADT7473_OOL 0x80 | |
97 | #define ADT7473_REG_ALARM2 0x42 | |
98 | #define ADT7473_OVT_ALARM 0x02 | |
99 | #define ADT7473_FAN1_ALARM 0x04 | |
100 | #define ADT7473_FAN2_ALARM 0x08 | |
101 | #define ADT7473_FAN3_ALARM 0x10 | |
102 | #define ADT7473_FAN4_ALARM 0x20 | |
103 | #define ADT7473_R1T_SHORT 0x40 | |
104 | #define ADT7473_R2T_SHORT 0x80 | |
105 | #define ADT7473_REG_MAX_ADDR 0x80 | |
106 | ||
107 | #define ALARM2(x) ((x) << 8) | |
108 | ||
109 | #define ADT7473_VOLT_COUNT 2 | |
110 | #define ADT7473_REG_VOLT(x) (ADT7473_REG_VOLT_BASE_ADDR + (x)) | |
111 | #define ADT7473_REG_VOLT_MIN(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + ((x) * 2)) | |
112 | #define ADT7473_REG_VOLT_MAX(x) (ADT7473_REG_VOLT_MIN_BASE_ADDR + \ | |
113 | ((x) * 2) + 1) | |
114 | ||
115 | #define ADT7473_TEMP_COUNT 3 | |
116 | #define ADT7473_REG_TEMP(x) (ADT7473_REG_TEMP_BASE_ADDR + (x)) | |
117 | #define ADT7473_REG_TEMP_MIN(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
118 | #define ADT7473_REG_TEMP_MAX(x) (ADT7473_REG_TEMP_LIMITS_BASE_ADDR + \ | |
119 | ((x) * 2) + 1) | |
120 | #define ADT7473_REG_TEMP_TMIN(x) (ADT7473_REG_TEMP_TMIN_BASE_ADDR + (x)) | |
121 | #define ADT7473_REG_TEMP_TMAX(x) (ADT7473_REG_TEMP_TMAX_BASE_ADDR + (x)) | |
122 | ||
123 | #define ADT7473_FAN_COUNT 4 | |
124 | #define ADT7473_REG_FAN(x) (ADT7473_REG_FAN_BASE_ADDR + ((x) * 2)) | |
125 | #define ADT7473_REG_FAN_MIN(x) (ADT7473_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
126 | ||
127 | #define ADT7473_PWM_COUNT 3 | |
128 | #define ADT7473_REG_PWM(x) (ADT7473_REG_PWM_BASE_ADDR + (x)) | |
129 | #define ADT7473_REG_PWM_MAX(x) (ADT7473_REG_PWM_MAX_BASE_ADDR + (x)) | |
130 | #define ADT7473_REG_PWM_MIN(x) (ADT7473_REG_PWM_MIN_BASE_ADDR + (x)) | |
131 | #define ADT7473_REG_PWM_BHVR(x) (ADT7473_REG_PWM_BHVR_BASE_ADDR + (x)) | |
132 | ||
133 | /* How often do we reread sensors values? (In jiffies) */ | |
134 | #define SENSOR_REFRESH_INTERVAL (2 * HZ) | |
135 | ||
136 | /* How often do we reread sensor limit values? (In jiffies) */ | |
137 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
138 | ||
139 | /* datasheet says to divide this number by the fan reading to get fan rpm */ | |
140 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
141 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
142 | #define FAN_PERIOD_INVALID 65535 | |
143 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
144 | ||
145 | struct adt7473_data { | |
57df46d6 DW |
146 | struct device *hwmon_dev; |
147 | struct attribute_group attrs; | |
148 | struct mutex lock; | |
149 | char sensors_valid; | |
150 | char limits_valid; | |
151 | unsigned long sensors_last_updated; /* In jiffies */ | |
152 | unsigned long limits_last_updated; /* In jiffies */ | |
153 | ||
154 | u8 volt[ADT7473_VOLT_COUNT]; | |
155 | s8 volt_min[ADT7473_VOLT_COUNT]; | |
156 | s8 volt_max[ADT7473_VOLT_COUNT]; | |
157 | ||
158 | s8 temp[ADT7473_TEMP_COUNT]; | |
159 | s8 temp_min[ADT7473_TEMP_COUNT]; | |
160 | s8 temp_max[ADT7473_TEMP_COUNT]; | |
161 | s8 temp_tmin[ADT7473_TEMP_COUNT]; | |
162 | /* This is called the !THERM limit in the datasheet */ | |
163 | s8 temp_tmax[ADT7473_TEMP_COUNT]; | |
164 | ||
165 | u16 fan[ADT7473_FAN_COUNT]; | |
166 | u16 fan_min[ADT7473_FAN_COUNT]; | |
167 | ||
168 | u8 pwm[ADT7473_PWM_COUNT]; | |
169 | u8 pwm_max[ADT7473_PWM_COUNT]; | |
170 | u8 pwm_min[ADT7473_PWM_COUNT]; | |
171 | u8 pwm_behavior[ADT7473_PWM_COUNT]; | |
172 | ||
173 | u8 temp_twos_complement; | |
174 | u8 temp_offset; | |
175 | ||
176 | u16 alarm; | |
177 | u8 max_duty_at_overheat; | |
178 | }; | |
179 | ||
eea54766 JD |
180 | static int adt7473_probe(struct i2c_client *client, |
181 | const struct i2c_device_id *id); | |
182 | static int adt7473_detect(struct i2c_client *client, int kind, | |
183 | struct i2c_board_info *info); | |
184 | static int adt7473_remove(struct i2c_client *client); | |
185 | ||
186 | static const struct i2c_device_id adt7473_id[] = { | |
187 | { "adt7473", adt7473 }, | |
188 | { } | |
189 | }; | |
190 | MODULE_DEVICE_TABLE(i2c, adt7473_id); | |
57df46d6 DW |
191 | |
192 | static struct i2c_driver adt7473_driver = { | |
eea54766 | 193 | .class = I2C_CLASS_HWMON, |
57df46d6 DW |
194 | .driver = { |
195 | .name = "adt7473", | |
196 | }, | |
eea54766 JD |
197 | .probe = adt7473_probe, |
198 | .remove = adt7473_remove, | |
199 | .id_table = adt7473_id, | |
200 | .detect = adt7473_detect, | |
201 | .address_data = &addr_data, | |
57df46d6 DW |
202 | }; |
203 | ||
204 | /* | |
205 | * 16-bit registers on the ADT7473 are low-byte first. The data sheet says | |
206 | * that the low byte must be read before the high byte. | |
207 | */ | |
208 | static inline int adt7473_read_word_data(struct i2c_client *client, u8 reg) | |
209 | { | |
210 | u16 foo; | |
211 | foo = i2c_smbus_read_byte_data(client, reg); | |
212 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
213 | return foo; | |
214 | } | |
215 | ||
216 | static inline int adt7473_write_word_data(struct i2c_client *client, u8 reg, | |
217 | u16 value) | |
218 | { | |
219 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
220 | && i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
221 | } | |
222 | ||
223 | static void adt7473_init_client(struct i2c_client *client) | |
224 | { | |
225 | int reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG1); | |
226 | ||
227 | if (!(reg & ADT7473_CFG1_READY)) { | |
228 | dev_err(&client->dev, "Chip not ready.\n"); | |
229 | } else { | |
230 | /* start monitoring */ | |
231 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG1, | |
232 | reg | ADT7473_CFG1_START); | |
233 | } | |
234 | } | |
235 | ||
236 | static struct adt7473_data *adt7473_update_device(struct device *dev) | |
237 | { | |
238 | struct i2c_client *client = to_i2c_client(dev); | |
239 | struct adt7473_data *data = i2c_get_clientdata(client); | |
240 | unsigned long local_jiffies = jiffies; | |
241 | u8 cfg; | |
242 | int i; | |
243 | ||
244 | mutex_lock(&data->lock); | |
245 | if (time_before(local_jiffies, data->sensors_last_updated + | |
246 | SENSOR_REFRESH_INTERVAL) | |
247 | && data->sensors_valid) | |
248 | goto no_sensor_update; | |
249 | ||
250 | for (i = 0; i < ADT7473_VOLT_COUNT; i++) | |
251 | data->volt[i] = i2c_smbus_read_byte_data(client, | |
252 | ADT7473_REG_VOLT(i)); | |
253 | ||
254 | /* Determine temperature encoding */ | |
255 | cfg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG5); | |
256 | data->temp_twos_complement = (cfg & ADT7473_CFG5_TEMP_TWOS); | |
257 | ||
258 | /* | |
259 | * What does this do? it implies a variable temperature sensor | |
260 | * offset, but the datasheet doesn't say anything about this bit | |
261 | * and other parts of the datasheet imply that "offset64" mode | |
262 | * means that you shift temp values by -64 if the above bit was set. | |
263 | */ | |
264 | data->temp_offset = (cfg & ADT7473_CFG5_TEMP_OFFSET); | |
265 | ||
266 | for (i = 0; i < ADT7473_TEMP_COUNT; i++) | |
267 | data->temp[i] = i2c_smbus_read_byte_data(client, | |
268 | ADT7473_REG_TEMP(i)); | |
269 | ||
270 | for (i = 0; i < ADT7473_FAN_COUNT; i++) | |
271 | data->fan[i] = adt7473_read_word_data(client, | |
272 | ADT7473_REG_FAN(i)); | |
273 | ||
274 | for (i = 0; i < ADT7473_PWM_COUNT; i++) | |
275 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
276 | ADT7473_REG_PWM(i)); | |
277 | ||
278 | data->alarm = i2c_smbus_read_byte_data(client, ADT7473_REG_ALARM1); | |
279 | if (data->alarm & ADT7473_OOL) | |
280 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
281 | ADT7473_REG_ALARM2)); | |
282 | ||
283 | data->sensors_last_updated = local_jiffies; | |
284 | data->sensors_valid = 1; | |
285 | ||
286 | no_sensor_update: | |
287 | if (time_before(local_jiffies, data->limits_last_updated + | |
288 | LIMIT_REFRESH_INTERVAL) | |
289 | && data->limits_valid) | |
290 | goto out; | |
291 | ||
292 | for (i = 0; i < ADT7473_VOLT_COUNT; i++) { | |
293 | data->volt_min[i] = i2c_smbus_read_byte_data(client, | |
294 | ADT7473_REG_VOLT_MIN(i)); | |
295 | data->volt_max[i] = i2c_smbus_read_byte_data(client, | |
296 | ADT7473_REG_VOLT_MAX(i)); | |
297 | } | |
298 | ||
299 | for (i = 0; i < ADT7473_TEMP_COUNT; i++) { | |
300 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
301 | ADT7473_REG_TEMP_MIN(i)); | |
302 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
303 | ADT7473_REG_TEMP_MAX(i)); | |
304 | data->temp_tmin[i] = i2c_smbus_read_byte_data(client, | |
305 | ADT7473_REG_TEMP_TMIN(i)); | |
306 | data->temp_tmax[i] = i2c_smbus_read_byte_data(client, | |
307 | ADT7473_REG_TEMP_TMAX(i)); | |
308 | } | |
309 | ||
310 | for (i = 0; i < ADT7473_FAN_COUNT; i++) | |
311 | data->fan_min[i] = adt7473_read_word_data(client, | |
312 | ADT7473_REG_FAN_MIN(i)); | |
313 | ||
314 | for (i = 0; i < ADT7473_PWM_COUNT; i++) { | |
315 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
316 | ADT7473_REG_PWM_MAX(i)); | |
317 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
318 | ADT7473_REG_PWM_MIN(i)); | |
319 | data->pwm_behavior[i] = i2c_smbus_read_byte_data(client, | |
320 | ADT7473_REG_PWM_BHVR(i)); | |
321 | } | |
322 | ||
ed4ec814 JD |
323 | i = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); |
324 | data->max_duty_at_overheat = !!(i & ADT7473_CFG4_MAX_DUTY_AT_OVT); | |
325 | ||
57df46d6 DW |
326 | data->limits_last_updated = local_jiffies; |
327 | data->limits_valid = 1; | |
328 | ||
329 | out: | |
330 | mutex_unlock(&data->lock); | |
331 | return data; | |
332 | } | |
333 | ||
334 | /* | |
335 | * On this chip, voltages are given as a count of steps between a minimum | |
336 | * and maximum voltage, not a direct voltage. | |
337 | */ | |
338 | static const int volt_convert_table[][2] = { | |
339 | {2997, 3}, | |
340 | {4395, 4}, | |
341 | }; | |
342 | ||
343 | static int decode_volt(int volt_index, u8 raw) | |
344 | { | |
345 | int cmax = volt_convert_table[volt_index][0]; | |
346 | int cmin = volt_convert_table[volt_index][1]; | |
347 | return ((raw * (cmax - cmin)) / 255) + cmin; | |
348 | } | |
349 | ||
350 | static u8 encode_volt(int volt_index, int cooked) | |
351 | { | |
352 | int cmax = volt_convert_table[volt_index][0]; | |
353 | int cmin = volt_convert_table[volt_index][1]; | |
354 | u8 x; | |
355 | ||
356 | if (cooked > cmax) | |
357 | cooked = cmax; | |
358 | else if (cooked < cmin) | |
359 | cooked = cmin; | |
360 | ||
361 | x = ((cooked - cmin) * 255) / (cmax - cmin); | |
362 | ||
363 | return x; | |
364 | } | |
365 | ||
366 | static ssize_t show_volt_min(struct device *dev, | |
367 | struct device_attribute *devattr, | |
368 | char *buf) | |
369 | { | |
370 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
371 | struct adt7473_data *data = adt7473_update_device(dev); | |
372 | return sprintf(buf, "%d\n", | |
373 | decode_volt(attr->index, data->volt_min[attr->index])); | |
374 | } | |
375 | ||
376 | static ssize_t set_volt_min(struct device *dev, | |
377 | struct device_attribute *devattr, | |
378 | const char *buf, | |
379 | size_t count) | |
380 | { | |
381 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
382 | struct i2c_client *client = to_i2c_client(dev); | |
383 | struct adt7473_data *data = i2c_get_clientdata(client); | |
384 | int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10)); | |
385 | ||
386 | mutex_lock(&data->lock); | |
387 | data->volt_min[attr->index] = volt; | |
388 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index), | |
389 | volt); | |
390 | mutex_unlock(&data->lock); | |
391 | ||
392 | return count; | |
393 | } | |
394 | ||
395 | static ssize_t show_volt_max(struct device *dev, | |
396 | struct device_attribute *devattr, | |
397 | char *buf) | |
398 | { | |
399 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
400 | struct adt7473_data *data = adt7473_update_device(dev); | |
401 | return sprintf(buf, "%d\n", | |
402 | decode_volt(attr->index, data->volt_max[attr->index])); | |
403 | } | |
404 | ||
405 | static ssize_t set_volt_max(struct device *dev, | |
406 | struct device_attribute *devattr, | |
407 | const char *buf, | |
408 | size_t count) | |
409 | { | |
410 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
411 | struct i2c_client *client = to_i2c_client(dev); | |
412 | struct adt7473_data *data = i2c_get_clientdata(client); | |
413 | int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10)); | |
414 | ||
415 | mutex_lock(&data->lock); | |
416 | data->volt_max[attr->index] = volt; | |
417 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index), | |
418 | volt); | |
419 | mutex_unlock(&data->lock); | |
420 | ||
421 | return count; | |
422 | } | |
423 | ||
424 | static ssize_t show_volt(struct device *dev, struct device_attribute *devattr, | |
425 | char *buf) | |
426 | { | |
427 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
428 | struct adt7473_data *data = adt7473_update_device(dev); | |
429 | ||
430 | return sprintf(buf, "%d\n", | |
431 | decode_volt(attr->index, data->volt[attr->index])); | |
432 | } | |
433 | ||
434 | /* | |
435 | * This chip can report temperature data either as a two's complement | |
436 | * number in the range -128 to 127, or as an unsigned number that must | |
437 | * be offset by 64. | |
438 | */ | |
18524486 | 439 | static int decode_temp(u8 twos_complement, u8 raw) |
57df46d6 | 440 | { |
18524486 | 441 | return twos_complement ? (s8)raw : raw - 64; |
57df46d6 DW |
442 | } |
443 | ||
18524486 | 444 | static u8 encode_temp(u8 twos_complement, int cooked) |
57df46d6 | 445 | { |
18524486 | 446 | return twos_complement ? cooked & 0xFF : cooked + 64; |
57df46d6 DW |
447 | } |
448 | ||
449 | static ssize_t show_temp_min(struct device *dev, | |
450 | struct device_attribute *devattr, | |
451 | char *buf) | |
452 | { | |
453 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
454 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
455 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
456 | data->temp_twos_complement, | |
457 | data->temp_min[attr->index])); | |
57df46d6 DW |
458 | } |
459 | ||
460 | static ssize_t set_temp_min(struct device *dev, | |
461 | struct device_attribute *devattr, | |
462 | const char *buf, | |
463 | size_t count) | |
464 | { | |
465 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
466 | struct i2c_client *client = to_i2c_client(dev); | |
467 | struct adt7473_data *data = i2c_get_clientdata(client); | |
468 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 469 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
470 | |
471 | mutex_lock(&data->lock); | |
472 | data->temp_min[attr->index] = temp; | |
473 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index), | |
474 | temp); | |
475 | mutex_unlock(&data->lock); | |
476 | ||
477 | return count; | |
478 | } | |
479 | ||
480 | static ssize_t show_temp_max(struct device *dev, | |
481 | struct device_attribute *devattr, | |
482 | char *buf) | |
483 | { | |
484 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
485 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
486 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
487 | data->temp_twos_complement, | |
488 | data->temp_max[attr->index])); | |
57df46d6 DW |
489 | } |
490 | ||
491 | static ssize_t set_temp_max(struct device *dev, | |
492 | struct device_attribute *devattr, | |
493 | const char *buf, | |
494 | size_t count) | |
495 | { | |
496 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
497 | struct i2c_client *client = to_i2c_client(dev); | |
498 | struct adt7473_data *data = i2c_get_clientdata(client); | |
499 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 500 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
501 | |
502 | mutex_lock(&data->lock); | |
503 | data->temp_max[attr->index] = temp; | |
504 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index), | |
505 | temp); | |
506 | mutex_unlock(&data->lock); | |
507 | ||
508 | return count; | |
509 | } | |
510 | ||
511 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
512 | char *buf) | |
513 | { | |
514 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
515 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
516 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
517 | data->temp_twos_complement, | |
518 | data->temp[attr->index])); | |
57df46d6 DW |
519 | } |
520 | ||
521 | static ssize_t show_fan_min(struct device *dev, | |
522 | struct device_attribute *devattr, | |
523 | char *buf) | |
524 | { | |
525 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
526 | struct adt7473_data *data = adt7473_update_device(dev); | |
527 | ||
528 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
529 | return sprintf(buf, "%d\n", | |
530 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
531 | else | |
532 | return sprintf(buf, "0\n"); | |
533 | } | |
534 | ||
535 | static ssize_t set_fan_min(struct device *dev, | |
536 | struct device_attribute *devattr, | |
537 | const char *buf, size_t count) | |
538 | { | |
539 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
540 | struct i2c_client *client = to_i2c_client(dev); | |
541 | struct adt7473_data *data = i2c_get_clientdata(client); | |
542 | int temp = simple_strtol(buf, NULL, 10); | |
543 | ||
544 | if (!temp) | |
545 | return -EINVAL; | |
546 | temp = FAN_RPM_TO_PERIOD(temp); | |
547 | ||
548 | mutex_lock(&data->lock); | |
549 | data->fan_min[attr->index] = temp; | |
550 | adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp); | |
551 | mutex_unlock(&data->lock); | |
552 | ||
553 | return count; | |
554 | } | |
555 | ||
556 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
557 | char *buf) | |
558 | { | |
559 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
560 | struct adt7473_data *data = adt7473_update_device(dev); | |
561 | ||
562 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
563 | return sprintf(buf, "%d\n", | |
564 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
565 | else | |
566 | return sprintf(buf, "0\n"); | |
567 | } | |
568 | ||
569 | static ssize_t show_max_duty_at_crit(struct device *dev, | |
570 | struct device_attribute *devattr, | |
571 | char *buf) | |
572 | { | |
573 | struct adt7473_data *data = adt7473_update_device(dev); | |
574 | return sprintf(buf, "%d\n", data->max_duty_at_overheat); | |
575 | } | |
576 | ||
577 | static ssize_t set_max_duty_at_crit(struct device *dev, | |
578 | struct device_attribute *devattr, | |
579 | const char *buf, | |
580 | size_t count) | |
581 | { | |
582 | u8 reg; | |
583 | struct i2c_client *client = to_i2c_client(dev); | |
584 | struct adt7473_data *data = i2c_get_clientdata(client); | |
585 | int temp = simple_strtol(buf, NULL, 10); | |
586 | temp = temp && 0xFF; | |
587 | ||
588 | mutex_lock(&data->lock); | |
589 | data->max_duty_at_overheat = temp; | |
590 | reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); | |
591 | if (temp) | |
592 | reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
593 | else | |
594 | reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
595 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg); | |
596 | mutex_unlock(&data->lock); | |
597 | ||
598 | return count; | |
599 | } | |
600 | ||
601 | static ssize_t show_pwm(struct device *dev, 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[attr->index]); | |
607 | } | |
608 | ||
609 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
610 | const char *buf, size_t count) | |
611 | { | |
612 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
613 | struct i2c_client *client = to_i2c_client(dev); | |
614 | struct adt7473_data *data = i2c_get_clientdata(client); | |
615 | int temp = simple_strtol(buf, NULL, 10); | |
616 | ||
617 | mutex_lock(&data->lock); | |
618 | data->pwm[attr->index] = temp; | |
619 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp); | |
620 | mutex_unlock(&data->lock); | |
621 | ||
622 | return count; | |
623 | } | |
624 | ||
625 | static ssize_t show_pwm_max(struct device *dev, | |
626 | struct device_attribute *devattr, | |
627 | char *buf) | |
628 | { | |
629 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
630 | struct adt7473_data *data = adt7473_update_device(dev); | |
631 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
632 | } | |
633 | ||
634 | static ssize_t set_pwm_max(struct device *dev, | |
635 | struct device_attribute *devattr, | |
636 | const char *buf, | |
637 | size_t count) | |
638 | { | |
639 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
640 | struct i2c_client *client = to_i2c_client(dev); | |
641 | struct adt7473_data *data = i2c_get_clientdata(client); | |
642 | int temp = simple_strtol(buf, NULL, 10); | |
643 | ||
644 | mutex_lock(&data->lock); | |
645 | data->pwm_max[attr->index] = temp; | |
646 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index), | |
647 | temp); | |
648 | mutex_unlock(&data->lock); | |
649 | ||
650 | return count; | |
651 | } | |
652 | ||
653 | static ssize_t show_pwm_min(struct device *dev, | |
654 | struct device_attribute *devattr, | |
655 | char *buf) | |
656 | { | |
657 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
658 | struct adt7473_data *data = adt7473_update_device(dev); | |
659 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
660 | } | |
661 | ||
662 | static ssize_t set_pwm_min(struct device *dev, | |
663 | struct device_attribute *devattr, | |
664 | const char *buf, | |
665 | size_t count) | |
666 | { | |
667 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
668 | struct i2c_client *client = to_i2c_client(dev); | |
669 | struct adt7473_data *data = i2c_get_clientdata(client); | |
670 | int temp = simple_strtol(buf, NULL, 10); | |
671 | ||
672 | mutex_lock(&data->lock); | |
673 | data->pwm_min[attr->index] = temp; | |
674 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index), | |
675 | temp); | |
676 | mutex_unlock(&data->lock); | |
677 | ||
678 | return count; | |
679 | } | |
680 | ||
681 | static ssize_t show_temp_tmax(struct device *dev, | |
682 | struct device_attribute *devattr, | |
683 | char *buf) | |
684 | { | |
685 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
686 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
687 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
688 | data->temp_twos_complement, | |
689 | data->temp_tmax[attr->index])); | |
57df46d6 DW |
690 | } |
691 | ||
692 | static ssize_t set_temp_tmax(struct device *dev, | |
693 | struct device_attribute *devattr, | |
694 | const char *buf, | |
695 | size_t count) | |
696 | { | |
697 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
698 | struct i2c_client *client = to_i2c_client(dev); | |
699 | struct adt7473_data *data = i2c_get_clientdata(client); | |
700 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 701 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
702 | |
703 | mutex_lock(&data->lock); | |
704 | data->temp_tmax[attr->index] = temp; | |
705 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index), | |
706 | temp); | |
707 | mutex_unlock(&data->lock); | |
708 | ||
709 | return count; | |
710 | } | |
711 | ||
712 | static ssize_t show_temp_tmin(struct device *dev, | |
713 | struct device_attribute *devattr, | |
714 | char *buf) | |
715 | { | |
716 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
717 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
718 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
719 | data->temp_twos_complement, | |
720 | data->temp_tmin[attr->index])); | |
57df46d6 DW |
721 | } |
722 | ||
723 | static ssize_t set_temp_tmin(struct device *dev, | |
724 | struct device_attribute *devattr, | |
725 | const char *buf, | |
726 | size_t count) | |
727 | { | |
728 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
729 | struct i2c_client *client = to_i2c_client(dev); | |
730 | struct adt7473_data *data = i2c_get_clientdata(client); | |
731 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 732 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
733 | |
734 | mutex_lock(&data->lock); | |
735 | data->temp_tmin[attr->index] = temp; | |
736 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index), | |
737 | temp); | |
738 | mutex_unlock(&data->lock); | |
739 | ||
740 | return count; | |
741 | } | |
742 | ||
743 | static ssize_t show_pwm_enable(struct device *dev, | |
744 | struct device_attribute *devattr, | |
745 | char *buf) | |
746 | { | |
747 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
748 | struct adt7473_data *data = adt7473_update_device(dev); | |
749 | ||
750 | switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) { | |
751 | case 3: | |
752 | return sprintf(buf, "0\n"); | |
753 | case 7: | |
754 | return sprintf(buf, "1\n"); | |
755 | default: | |
756 | return sprintf(buf, "2\n"); | |
757 | } | |
758 | } | |
759 | ||
760 | static ssize_t set_pwm_enable(struct device *dev, | |
761 | struct device_attribute *devattr, | |
762 | const char *buf, | |
763 | size_t count) | |
764 | { | |
765 | u8 reg; | |
766 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
767 | struct i2c_client *client = to_i2c_client(dev); | |
768 | struct adt7473_data *data = i2c_get_clientdata(client); | |
769 | int temp = simple_strtol(buf, NULL, 10); | |
770 | ||
771 | switch (temp) { | |
772 | case 0: | |
773 | temp = 3; | |
774 | break; | |
775 | case 1: | |
776 | temp = 7; | |
777 | break; | |
778 | case 2: | |
779 | /* Enter automatic mode with fans off */ | |
780 | temp = 4; | |
781 | break; | |
782 | default: | |
783 | return -EINVAL; | |
784 | } | |
785 | ||
786 | mutex_lock(&data->lock); | |
787 | reg = i2c_smbus_read_byte_data(client, | |
788 | ADT7473_REG_PWM_BHVR(attr->index)); | |
789 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
790 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
791 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
792 | reg); | |
793 | data->pwm_behavior[attr->index] = reg; | |
794 | mutex_unlock(&data->lock); | |
795 | ||
796 | return count; | |
797 | } | |
798 | ||
799 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
800 | struct device_attribute *devattr, | |
801 | char *buf) | |
802 | { | |
803 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
804 | struct adt7473_data *data = adt7473_update_device(dev); | |
805 | int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT; | |
806 | ||
807 | switch (bhvr) { | |
808 | case 3: | |
809 | case 4: | |
810 | case 7: | |
811 | return sprintf(buf, "0\n"); | |
812 | case 0: | |
813 | case 1: | |
814 | case 5: | |
815 | case 6: | |
816 | return sprintf(buf, "%d\n", bhvr + 1); | |
817 | case 2: | |
818 | return sprintf(buf, "4\n"); | |
819 | } | |
820 | /* shouldn't ever get here */ | |
821 | BUG(); | |
822 | } | |
823 | ||
824 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
825 | struct device_attribute *devattr, | |
826 | const char *buf, | |
827 | size_t count) | |
828 | { | |
829 | u8 reg; | |
830 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
831 | struct i2c_client *client = to_i2c_client(dev); | |
832 | struct adt7473_data *data = i2c_get_clientdata(client); | |
833 | int temp = simple_strtol(buf, NULL, 10); | |
834 | ||
835 | switch (temp) { | |
836 | case 1: | |
837 | case 2: | |
838 | case 6: | |
839 | case 7: | |
840 | temp--; | |
841 | break; | |
842 | case 0: | |
843 | temp = 4; | |
844 | break; | |
845 | default: | |
846 | return -EINVAL; | |
847 | } | |
848 | ||
849 | mutex_lock(&data->lock); | |
850 | reg = i2c_smbus_read_byte_data(client, | |
851 | ADT7473_REG_PWM_BHVR(attr->index)); | |
852 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
853 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
854 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
855 | reg); | |
856 | data->pwm_behavior[attr->index] = reg; | |
857 | mutex_unlock(&data->lock); | |
858 | ||
859 | return count; | |
860 | } | |
861 | ||
862 | static ssize_t show_alarm(struct device *dev, | |
863 | struct device_attribute *devattr, | |
864 | char *buf) | |
865 | { | |
866 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
867 | struct adt7473_data *data = adt7473_update_device(dev); | |
868 | ||
869 | if (data->alarm & attr->index) | |
870 | return sprintf(buf, "1\n"); | |
871 | else | |
872 | return sprintf(buf, "0\n"); | |
873 | } | |
874 | ||
875 | ||
876 | static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max, | |
877 | set_volt_max, 0); | |
878 | static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max, | |
879 | set_volt_max, 1); | |
880 | ||
881 | static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min, | |
882 | set_volt_min, 0); | |
883 | static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min, | |
884 | set_volt_min, 1); | |
885 | ||
886 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0); | |
887 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1); | |
888 | ||
889 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, | |
890 | ADT7473_VCCP_ALARM); | |
891 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, | |
892 | ADT7473_VCC_ALARM); | |
893 | ||
894 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
895 | set_temp_max, 0); | |
896 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
897 | set_temp_max, 1); | |
898 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
899 | set_temp_max, 2); | |
900 | ||
901 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
902 | set_temp_min, 0); | |
903 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
904 | set_temp_min, 1); | |
905 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
906 | set_temp_min, 2); | |
907 | ||
908 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
909 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
910 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
911 | ||
912 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, | |
913 | ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT)); | |
914 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
915 | ADT7473_LT_ALARM); | |
916 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
917 | ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT)); | |
918 | ||
919 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
920 | set_fan_min, 0); | |
921 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
922 | set_fan_min, 1); | |
923 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
924 | set_fan_min, 2); | |
925 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
926 | set_fan_min, 3); | |
927 | ||
928 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
929 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
930 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
931 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
932 | ||
933 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, | |
934 | ALARM2(ADT7473_FAN1_ALARM)); | |
935 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
936 | ALARM2(ADT7473_FAN2_ALARM)); | |
937 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
938 | ALARM2(ADT7473_FAN3_ALARM)); | |
939 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
940 | ALARM2(ADT7473_FAN4_ALARM)); | |
941 | ||
942 | static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO, | |
943 | show_max_duty_at_crit, set_max_duty_at_crit, 0); | |
944 | ||
945 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
946 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
947 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
948 | ||
949 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
950 | show_pwm_min, set_pwm_min, 0); | |
951 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
952 | show_pwm_min, set_pwm_min, 1); | |
953 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
954 | show_pwm_min, set_pwm_min, 2); | |
955 | ||
956 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
957 | show_pwm_max, set_pwm_max, 0); | |
958 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
959 | show_pwm_max, set_pwm_max, 1); | |
960 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
961 | show_pwm_max, set_pwm_max, 2); | |
962 | ||
963 | static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
964 | show_temp_tmin, set_temp_tmin, 0); | |
965 | static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
966 | show_temp_tmin, set_temp_tmin, 1); | |
967 | static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
968 | show_temp_tmin, set_temp_tmin, 2); | |
969 | ||
970 | static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO, | |
971 | show_temp_tmax, set_temp_tmax, 0); | |
972 | static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO, | |
973 | show_temp_tmax, set_temp_tmax, 1); | |
974 | static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO, | |
975 | show_temp_tmax, set_temp_tmax, 2); | |
976 | ||
977 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
978 | set_pwm_enable, 0); | |
979 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
980 | set_pwm_enable, 1); | |
981 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
982 | set_pwm_enable, 2); | |
983 | ||
984 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
985 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
986 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
987 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
988 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
989 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
990 | ||
991 | static struct attribute *adt7473_attr[] = | |
992 | { | |
993 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
994 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
995 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
996 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
997 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
998 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
999 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
1000 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
1001 | ||
1002 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
1003 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1004 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1005 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1006 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1007 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1008 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1009 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1010 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1011 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, | |
1012 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1013 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1014 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, | |
1015 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, | |
1016 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, | |
1017 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, | |
1018 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, | |
1019 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, | |
1020 | ||
1021 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1022 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1023 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1024 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1025 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1026 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1027 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1028 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1029 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
1030 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1031 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1032 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
1033 | ||
1034 | &sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr, | |
1035 | ||
1036 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1037 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1038 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1039 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1040 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1041 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1042 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1043 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1044 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1045 | ||
1046 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1047 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1048 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1049 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1050 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1051 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1052 | ||
1053 | NULL | |
1054 | }; | |
1055 | ||
eea54766 JD |
1056 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
1057 | static int adt7473_detect(struct i2c_client *client, int kind, | |
1058 | struct i2c_board_info *info) | |
57df46d6 | 1059 | { |
eea54766 | 1060 | struct i2c_adapter *adapter = client->adapter; |
57df46d6 DW |
1061 | |
1062 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
eea54766 | 1063 | return -ENODEV; |
57df46d6 DW |
1064 | |
1065 | if (kind <= 0) { | |
1066 | int vendor, device, revision; | |
1067 | ||
1068 | vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR); | |
eea54766 JD |
1069 | if (vendor != ADT7473_VENDOR) |
1070 | return -ENODEV; | |
57df46d6 DW |
1071 | |
1072 | device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE); | |
eea54766 JD |
1073 | if (device != ADT7473_DEVICE) |
1074 | return -ENODEV; | |
57df46d6 DW |
1075 | |
1076 | revision = i2c_smbus_read_byte_data(client, | |
1077 | ADT7473_REG_REVISION); | |
eea54766 JD |
1078 | if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69) |
1079 | return -ENODEV; | |
57df46d6 DW |
1080 | } else |
1081 | dev_dbg(&adapter->dev, "detection forced\n"); | |
1082 | ||
eea54766 | 1083 | strlcpy(info->type, "adt7473", I2C_NAME_SIZE); |
57df46d6 | 1084 | |
eea54766 JD |
1085 | return 0; |
1086 | } | |
1087 | ||
1088 | static int adt7473_probe(struct i2c_client *client, | |
1089 | const struct i2c_device_id *id) | |
1090 | { | |
1091 | struct adt7473_data *data; | |
1092 | int err; | |
1093 | ||
1094 | data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL); | |
1095 | if (!data) { | |
1096 | err = -ENOMEM; | |
1097 | goto exit; | |
1098 | } | |
1099 | ||
1100 | i2c_set_clientdata(client, data); | |
1101 | mutex_init(&data->lock); | |
57df46d6 DW |
1102 | |
1103 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1104 | ||
1105 | /* Initialize the ADT7473 chip */ | |
1106 | adt7473_init_client(client); | |
1107 | ||
1108 | /* Register sysfs hooks */ | |
1109 | data->attrs.attrs = adt7473_attr; | |
1110 | err = sysfs_create_group(&client->dev.kobj, &data->attrs); | |
1111 | if (err) | |
eea54766 | 1112 | goto exit_free; |
57df46d6 DW |
1113 | |
1114 | data->hwmon_dev = hwmon_device_register(&client->dev); | |
1115 | if (IS_ERR(data->hwmon_dev)) { | |
1116 | err = PTR_ERR(data->hwmon_dev); | |
1117 | goto exit_remove; | |
1118 | } | |
1119 | ||
1120 | return 0; | |
1121 | ||
1122 | exit_remove: | |
1123 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
57df46d6 DW |
1124 | exit_free: |
1125 | kfree(data); | |
1126 | exit: | |
1127 | return err; | |
1128 | } | |
1129 | ||
eea54766 | 1130 | static int adt7473_remove(struct i2c_client *client) |
57df46d6 DW |
1131 | { |
1132 | struct adt7473_data *data = i2c_get_clientdata(client); | |
1133 | ||
1134 | hwmon_device_unregister(data->hwmon_dev); | |
1135 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
57df46d6 DW |
1136 | kfree(data); |
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | static int __init adt7473_init(void) | |
1141 | { | |
1142 | return i2c_add_driver(&adt7473_driver); | |
1143 | } | |
1144 | ||
1145 | static void __exit adt7473_exit(void) | |
1146 | { | |
1147 | i2c_del_driver(&adt7473_driver); | |
1148 | } | |
1149 | ||
1150 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1151 | MODULE_DESCRIPTION("ADT7473 driver"); | |
1152 | MODULE_LICENSE("GPL"); | |
1153 | ||
1154 | module_init(adt7473_init); | |
1155 | module_exit(adt7473_exit); |