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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 { | |
146 | struct i2c_client client; | |
147 | struct device *hwmon_dev; | |
148 | struct attribute_group attrs; | |
149 | struct mutex lock; | |
150 | char sensors_valid; | |
151 | char limits_valid; | |
152 | unsigned long sensors_last_updated; /* In jiffies */ | |
153 | unsigned long limits_last_updated; /* In jiffies */ | |
154 | ||
155 | u8 volt[ADT7473_VOLT_COUNT]; | |
156 | s8 volt_min[ADT7473_VOLT_COUNT]; | |
157 | s8 volt_max[ADT7473_VOLT_COUNT]; | |
158 | ||
159 | s8 temp[ADT7473_TEMP_COUNT]; | |
160 | s8 temp_min[ADT7473_TEMP_COUNT]; | |
161 | s8 temp_max[ADT7473_TEMP_COUNT]; | |
162 | s8 temp_tmin[ADT7473_TEMP_COUNT]; | |
163 | /* This is called the !THERM limit in the datasheet */ | |
164 | s8 temp_tmax[ADT7473_TEMP_COUNT]; | |
165 | ||
166 | u16 fan[ADT7473_FAN_COUNT]; | |
167 | u16 fan_min[ADT7473_FAN_COUNT]; | |
168 | ||
169 | u8 pwm[ADT7473_PWM_COUNT]; | |
170 | u8 pwm_max[ADT7473_PWM_COUNT]; | |
171 | u8 pwm_min[ADT7473_PWM_COUNT]; | |
172 | u8 pwm_behavior[ADT7473_PWM_COUNT]; | |
173 | ||
174 | u8 temp_twos_complement; | |
175 | u8 temp_offset; | |
176 | ||
177 | u16 alarm; | |
178 | u8 max_duty_at_overheat; | |
179 | }; | |
180 | ||
181 | static int adt7473_attach_adapter(struct i2c_adapter *adapter); | |
182 | static int adt7473_detect(struct i2c_adapter *adapter, int address, int kind); | |
183 | static int adt7473_detach_client(struct i2c_client *client); | |
184 | ||
185 | static struct i2c_driver adt7473_driver = { | |
186 | .driver = { | |
187 | .name = "adt7473", | |
188 | }, | |
189 | .attach_adapter = adt7473_attach_adapter, | |
190 | .detach_client = adt7473_detach_client, | |
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 | /* | |
324 | * On this chip, voltages are given as a count of steps between a minimum | |
325 | * and maximum voltage, not a direct voltage. | |
326 | */ | |
327 | static const int volt_convert_table[][2] = { | |
328 | {2997, 3}, | |
329 | {4395, 4}, | |
330 | }; | |
331 | ||
332 | static int decode_volt(int volt_index, u8 raw) | |
333 | { | |
334 | int cmax = volt_convert_table[volt_index][0]; | |
335 | int cmin = volt_convert_table[volt_index][1]; | |
336 | return ((raw * (cmax - cmin)) / 255) + cmin; | |
337 | } | |
338 | ||
339 | static u8 encode_volt(int volt_index, int cooked) | |
340 | { | |
341 | int cmax = volt_convert_table[volt_index][0]; | |
342 | int cmin = volt_convert_table[volt_index][1]; | |
343 | u8 x; | |
344 | ||
345 | if (cooked > cmax) | |
346 | cooked = cmax; | |
347 | else if (cooked < cmin) | |
348 | cooked = cmin; | |
349 | ||
350 | x = ((cooked - cmin) * 255) / (cmax - cmin); | |
351 | ||
352 | return x; | |
353 | } | |
354 | ||
355 | static ssize_t show_volt_min(struct device *dev, | |
356 | struct device_attribute *devattr, | |
357 | char *buf) | |
358 | { | |
359 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
360 | struct adt7473_data *data = adt7473_update_device(dev); | |
361 | return sprintf(buf, "%d\n", | |
362 | decode_volt(attr->index, data->volt_min[attr->index])); | |
363 | } | |
364 | ||
365 | static ssize_t set_volt_min(struct device *dev, | |
366 | struct device_attribute *devattr, | |
367 | const char *buf, | |
368 | size_t count) | |
369 | { | |
370 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
371 | struct i2c_client *client = to_i2c_client(dev); | |
372 | struct adt7473_data *data = i2c_get_clientdata(client); | |
373 | int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10)); | |
374 | ||
375 | mutex_lock(&data->lock); | |
376 | data->volt_min[attr->index] = volt; | |
377 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MIN(attr->index), | |
378 | volt); | |
379 | mutex_unlock(&data->lock); | |
380 | ||
381 | return count; | |
382 | } | |
383 | ||
384 | static ssize_t show_volt_max(struct device *dev, | |
385 | struct device_attribute *devattr, | |
386 | char *buf) | |
387 | { | |
388 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
389 | struct adt7473_data *data = adt7473_update_device(dev); | |
390 | return sprintf(buf, "%d\n", | |
391 | decode_volt(attr->index, data->volt_max[attr->index])); | |
392 | } | |
393 | ||
394 | static ssize_t set_volt_max(struct device *dev, | |
395 | struct device_attribute *devattr, | |
396 | const char *buf, | |
397 | size_t count) | |
398 | { | |
399 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
400 | struct i2c_client *client = to_i2c_client(dev); | |
401 | struct adt7473_data *data = i2c_get_clientdata(client); | |
402 | int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10)); | |
403 | ||
404 | mutex_lock(&data->lock); | |
405 | data->volt_max[attr->index] = volt; | |
406 | i2c_smbus_write_byte_data(client, ADT7473_REG_VOLT_MAX(attr->index), | |
407 | volt); | |
408 | mutex_unlock(&data->lock); | |
409 | ||
410 | return count; | |
411 | } | |
412 | ||
413 | static ssize_t show_volt(struct device *dev, struct device_attribute *devattr, | |
414 | char *buf) | |
415 | { | |
416 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
417 | struct adt7473_data *data = adt7473_update_device(dev); | |
418 | ||
419 | return sprintf(buf, "%d\n", | |
420 | decode_volt(attr->index, data->volt[attr->index])); | |
421 | } | |
422 | ||
423 | /* | |
424 | * This chip can report temperature data either as a two's complement | |
425 | * number in the range -128 to 127, or as an unsigned number that must | |
426 | * be offset by 64. | |
427 | */ | |
18524486 | 428 | static int decode_temp(u8 twos_complement, u8 raw) |
57df46d6 | 429 | { |
18524486 | 430 | return twos_complement ? (s8)raw : raw - 64; |
57df46d6 DW |
431 | } |
432 | ||
18524486 | 433 | static u8 encode_temp(u8 twos_complement, int cooked) |
57df46d6 | 434 | { |
18524486 | 435 | return twos_complement ? cooked & 0xFF : cooked + 64; |
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); | |
457 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 458 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
459 | |
460 | mutex_lock(&data->lock); | |
461 | data->temp_min[attr->index] = temp; | |
462 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MIN(attr->index), | |
463 | temp); | |
464 | mutex_unlock(&data->lock); | |
465 | ||
466 | return count; | |
467 | } | |
468 | ||
469 | static ssize_t show_temp_max(struct device *dev, | |
470 | struct device_attribute *devattr, | |
471 | char *buf) | |
472 | { | |
473 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
474 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
475 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
476 | data->temp_twos_complement, | |
477 | data->temp_max[attr->index])); | |
57df46d6 DW |
478 | } |
479 | ||
480 | static ssize_t set_temp_max(struct device *dev, | |
481 | struct device_attribute *devattr, | |
482 | const char *buf, | |
483 | size_t count) | |
484 | { | |
485 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
486 | struct i2c_client *client = to_i2c_client(dev); | |
487 | struct adt7473_data *data = i2c_get_clientdata(client); | |
488 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 489 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
490 | |
491 | mutex_lock(&data->lock); | |
492 | data->temp_max[attr->index] = temp; | |
493 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_MAX(attr->index), | |
494 | temp); | |
495 | mutex_unlock(&data->lock); | |
496 | ||
497 | return count; | |
498 | } | |
499 | ||
500 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
501 | char *buf) | |
502 | { | |
503 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
504 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
505 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
506 | data->temp_twos_complement, | |
507 | data->temp[attr->index])); | |
57df46d6 DW |
508 | } |
509 | ||
510 | static ssize_t show_fan_min(struct device *dev, | |
511 | 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); | |
516 | ||
517 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
518 | return sprintf(buf, "%d\n", | |
519 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
520 | else | |
521 | return sprintf(buf, "0\n"); | |
522 | } | |
523 | ||
524 | static ssize_t set_fan_min(struct device *dev, | |
525 | struct device_attribute *devattr, | |
526 | const char *buf, size_t count) | |
527 | { | |
528 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
529 | struct i2c_client *client = to_i2c_client(dev); | |
530 | struct adt7473_data *data = i2c_get_clientdata(client); | |
531 | int temp = simple_strtol(buf, NULL, 10); | |
532 | ||
533 | if (!temp) | |
534 | return -EINVAL; | |
535 | temp = FAN_RPM_TO_PERIOD(temp); | |
536 | ||
537 | mutex_lock(&data->lock); | |
538 | data->fan_min[attr->index] = temp; | |
539 | adt7473_write_word_data(client, ADT7473_REG_FAN_MIN(attr->index), temp); | |
540 | mutex_unlock(&data->lock); | |
541 | ||
542 | return count; | |
543 | } | |
544 | ||
545 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
546 | char *buf) | |
547 | { | |
548 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
549 | struct adt7473_data *data = adt7473_update_device(dev); | |
550 | ||
551 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
552 | return sprintf(buf, "%d\n", | |
553 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
554 | else | |
555 | return sprintf(buf, "0\n"); | |
556 | } | |
557 | ||
558 | static ssize_t show_max_duty_at_crit(struct device *dev, | |
559 | struct device_attribute *devattr, | |
560 | char *buf) | |
561 | { | |
562 | struct adt7473_data *data = adt7473_update_device(dev); | |
563 | return sprintf(buf, "%d\n", data->max_duty_at_overheat); | |
564 | } | |
565 | ||
566 | static ssize_t set_max_duty_at_crit(struct device *dev, | |
567 | struct device_attribute *devattr, | |
568 | const char *buf, | |
569 | size_t count) | |
570 | { | |
571 | u8 reg; | |
572 | struct i2c_client *client = to_i2c_client(dev); | |
573 | struct adt7473_data *data = i2c_get_clientdata(client); | |
574 | int temp = simple_strtol(buf, NULL, 10); | |
575 | temp = temp && 0xFF; | |
576 | ||
577 | mutex_lock(&data->lock); | |
578 | data->max_duty_at_overheat = temp; | |
579 | reg = i2c_smbus_read_byte_data(client, ADT7473_REG_CFG4); | |
580 | if (temp) | |
581 | reg |= ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
582 | else | |
583 | reg &= ~ADT7473_CFG4_MAX_DUTY_AT_OVT; | |
584 | i2c_smbus_write_byte_data(client, ADT7473_REG_CFG4, reg); | |
585 | mutex_unlock(&data->lock); | |
586 | ||
587 | return count; | |
588 | } | |
589 | ||
590 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
591 | char *buf) | |
592 | { | |
593 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
594 | struct adt7473_data *data = adt7473_update_device(dev); | |
595 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
596 | } | |
597 | ||
598 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
599 | const char *buf, size_t count) | |
600 | { | |
601 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
602 | struct i2c_client *client = to_i2c_client(dev); | |
603 | struct adt7473_data *data = i2c_get_clientdata(client); | |
604 | int temp = simple_strtol(buf, NULL, 10); | |
605 | ||
606 | mutex_lock(&data->lock); | |
607 | data->pwm[attr->index] = temp; | |
608 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM(attr->index), temp); | |
609 | mutex_unlock(&data->lock); | |
610 | ||
611 | return count; | |
612 | } | |
613 | ||
614 | static ssize_t show_pwm_max(struct device *dev, | |
615 | struct device_attribute *devattr, | |
616 | char *buf) | |
617 | { | |
618 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
619 | struct adt7473_data *data = adt7473_update_device(dev); | |
620 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
621 | } | |
622 | ||
623 | static ssize_t set_pwm_max(struct device *dev, | |
624 | struct device_attribute *devattr, | |
625 | const char *buf, | |
626 | size_t count) | |
627 | { | |
628 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
629 | struct i2c_client *client = to_i2c_client(dev); | |
630 | struct adt7473_data *data = i2c_get_clientdata(client); | |
631 | int temp = simple_strtol(buf, NULL, 10); | |
632 | ||
633 | mutex_lock(&data->lock); | |
634 | data->pwm_max[attr->index] = temp; | |
635 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MAX(attr->index), | |
636 | temp); | |
637 | mutex_unlock(&data->lock); | |
638 | ||
639 | return count; | |
640 | } | |
641 | ||
642 | static ssize_t show_pwm_min(struct device *dev, | |
643 | struct device_attribute *devattr, | |
644 | char *buf) | |
645 | { | |
646 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
647 | struct adt7473_data *data = adt7473_update_device(dev); | |
648 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
649 | } | |
650 | ||
651 | static ssize_t set_pwm_min(struct device *dev, | |
652 | struct device_attribute *devattr, | |
653 | const char *buf, | |
654 | size_t count) | |
655 | { | |
656 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
657 | struct i2c_client *client = to_i2c_client(dev); | |
658 | struct adt7473_data *data = i2c_get_clientdata(client); | |
659 | int temp = simple_strtol(buf, NULL, 10); | |
660 | ||
661 | mutex_lock(&data->lock); | |
662 | data->pwm_min[attr->index] = temp; | |
663 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_MIN(attr->index), | |
664 | temp); | |
665 | mutex_unlock(&data->lock); | |
666 | ||
667 | return count; | |
668 | } | |
669 | ||
670 | static ssize_t show_temp_tmax(struct device *dev, | |
671 | struct device_attribute *devattr, | |
672 | char *buf) | |
673 | { | |
674 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
675 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
676 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
677 | data->temp_twos_complement, | |
678 | data->temp_tmax[attr->index])); | |
57df46d6 DW |
679 | } |
680 | ||
681 | static ssize_t set_temp_tmax(struct device *dev, | |
682 | struct device_attribute *devattr, | |
683 | const char *buf, | |
684 | size_t count) | |
685 | { | |
686 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
687 | struct i2c_client *client = to_i2c_client(dev); | |
688 | struct adt7473_data *data = i2c_get_clientdata(client); | |
689 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 690 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
691 | |
692 | mutex_lock(&data->lock); | |
693 | data->temp_tmax[attr->index] = temp; | |
694 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMAX(attr->index), | |
695 | temp); | |
696 | mutex_unlock(&data->lock); | |
697 | ||
698 | return count; | |
699 | } | |
700 | ||
701 | static ssize_t show_temp_tmin(struct device *dev, | |
702 | struct device_attribute *devattr, | |
703 | char *buf) | |
704 | { | |
705 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
706 | struct adt7473_data *data = adt7473_update_device(dev); | |
18524486 MH |
707 | return sprintf(buf, "%d\n", 1000 * decode_temp( |
708 | data->temp_twos_complement, | |
709 | data->temp_tmin[attr->index])); | |
57df46d6 DW |
710 | } |
711 | ||
712 | static ssize_t set_temp_tmin(struct device *dev, | |
713 | struct device_attribute *devattr, | |
714 | const char *buf, | |
715 | size_t count) | |
716 | { | |
717 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
718 | struct i2c_client *client = to_i2c_client(dev); | |
719 | struct adt7473_data *data = i2c_get_clientdata(client); | |
720 | int temp = simple_strtol(buf, NULL, 10) / 1000; | |
18524486 | 721 | temp = encode_temp(data->temp_twos_complement, temp); |
57df46d6 DW |
722 | |
723 | mutex_lock(&data->lock); | |
724 | data->temp_tmin[attr->index] = temp; | |
725 | i2c_smbus_write_byte_data(client, ADT7473_REG_TEMP_TMIN(attr->index), | |
726 | temp); | |
727 | mutex_unlock(&data->lock); | |
728 | ||
729 | return count; | |
730 | } | |
731 | ||
732 | static ssize_t show_pwm_enable(struct device *dev, | |
733 | struct device_attribute *devattr, | |
734 | char *buf) | |
735 | { | |
736 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
737 | struct adt7473_data *data = adt7473_update_device(dev); | |
738 | ||
739 | switch (data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT) { | |
740 | case 3: | |
741 | return sprintf(buf, "0\n"); | |
742 | case 7: | |
743 | return sprintf(buf, "1\n"); | |
744 | default: | |
745 | return sprintf(buf, "2\n"); | |
746 | } | |
747 | } | |
748 | ||
749 | static ssize_t set_pwm_enable(struct device *dev, | |
750 | struct device_attribute *devattr, | |
751 | const char *buf, | |
752 | size_t count) | |
753 | { | |
754 | u8 reg; | |
755 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
756 | struct i2c_client *client = to_i2c_client(dev); | |
757 | struct adt7473_data *data = i2c_get_clientdata(client); | |
758 | int temp = simple_strtol(buf, NULL, 10); | |
759 | ||
760 | switch (temp) { | |
761 | case 0: | |
762 | temp = 3; | |
763 | break; | |
764 | case 1: | |
765 | temp = 7; | |
766 | break; | |
767 | case 2: | |
768 | /* Enter automatic mode with fans off */ | |
769 | temp = 4; | |
770 | break; | |
771 | default: | |
772 | return -EINVAL; | |
773 | } | |
774 | ||
775 | mutex_lock(&data->lock); | |
776 | reg = i2c_smbus_read_byte_data(client, | |
777 | ADT7473_REG_PWM_BHVR(attr->index)); | |
778 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
779 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
780 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
781 | reg); | |
782 | data->pwm_behavior[attr->index] = reg; | |
783 | mutex_unlock(&data->lock); | |
784 | ||
785 | return count; | |
786 | } | |
787 | ||
788 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
789 | struct device_attribute *devattr, | |
790 | char *buf) | |
791 | { | |
792 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
793 | struct adt7473_data *data = adt7473_update_device(dev); | |
794 | int bhvr = data->pwm_behavior[attr->index] >> ADT7473_PWM_BHVR_SHIFT; | |
795 | ||
796 | switch (bhvr) { | |
797 | case 3: | |
798 | case 4: | |
799 | case 7: | |
800 | return sprintf(buf, "0\n"); | |
801 | case 0: | |
802 | case 1: | |
803 | case 5: | |
804 | case 6: | |
805 | return sprintf(buf, "%d\n", bhvr + 1); | |
806 | case 2: | |
807 | return sprintf(buf, "4\n"); | |
808 | } | |
809 | /* shouldn't ever get here */ | |
810 | BUG(); | |
811 | } | |
812 | ||
813 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
814 | struct device_attribute *devattr, | |
815 | const char *buf, | |
816 | size_t count) | |
817 | { | |
818 | u8 reg; | |
819 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
820 | struct i2c_client *client = to_i2c_client(dev); | |
821 | struct adt7473_data *data = i2c_get_clientdata(client); | |
822 | int temp = simple_strtol(buf, NULL, 10); | |
823 | ||
824 | switch (temp) { | |
825 | case 1: | |
826 | case 2: | |
827 | case 6: | |
828 | case 7: | |
829 | temp--; | |
830 | break; | |
831 | case 0: | |
832 | temp = 4; | |
833 | break; | |
834 | default: | |
835 | return -EINVAL; | |
836 | } | |
837 | ||
838 | mutex_lock(&data->lock); | |
839 | reg = i2c_smbus_read_byte_data(client, | |
840 | ADT7473_REG_PWM_BHVR(attr->index)); | |
841 | reg = (temp << ADT7473_PWM_BHVR_SHIFT) | | |
842 | (reg & ~ADT7473_PWM_BHVR_MASK); | |
843 | i2c_smbus_write_byte_data(client, ADT7473_REG_PWM_BHVR(attr->index), | |
844 | reg); | |
845 | data->pwm_behavior[attr->index] = reg; | |
846 | mutex_unlock(&data->lock); | |
847 | ||
848 | return count; | |
849 | } | |
850 | ||
851 | static ssize_t show_alarm(struct device *dev, | |
852 | struct device_attribute *devattr, | |
853 | char *buf) | |
854 | { | |
855 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
856 | struct adt7473_data *data = adt7473_update_device(dev); | |
857 | ||
858 | if (data->alarm & attr->index) | |
859 | return sprintf(buf, "1\n"); | |
860 | else | |
861 | return sprintf(buf, "0\n"); | |
862 | } | |
863 | ||
864 | ||
865 | static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, show_volt_max, | |
866 | set_volt_max, 0); | |
867 | static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, show_volt_max, | |
868 | set_volt_max, 1); | |
869 | ||
870 | static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO, show_volt_min, | |
871 | set_volt_min, 0); | |
872 | static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, show_volt_min, | |
873 | set_volt_min, 1); | |
874 | ||
875 | static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_volt, NULL, 0); | |
876 | static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_volt, NULL, 1); | |
877 | ||
878 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, | |
879 | ADT7473_VCCP_ALARM); | |
880 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, | |
881 | ADT7473_VCC_ALARM); | |
882 | ||
883 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
884 | set_temp_max, 0); | |
885 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
886 | set_temp_max, 1); | |
887 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
888 | set_temp_max, 2); | |
889 | ||
890 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
891 | set_temp_min, 0); | |
892 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
893 | set_temp_min, 1); | |
894 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
895 | set_temp_min, 2); | |
896 | ||
897 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
898 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
899 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
900 | ||
901 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, | |
902 | ADT7473_R1T_ALARM | ALARM2(ADT7473_R1T_SHORT)); | |
903 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
904 | ADT7473_LT_ALARM); | |
905 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
906 | ADT7473_R2T_ALARM | ALARM2(ADT7473_R2T_SHORT)); | |
907 | ||
908 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
909 | set_fan_min, 0); | |
910 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
911 | set_fan_min, 1); | |
912 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
913 | set_fan_min, 2); | |
914 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
915 | set_fan_min, 3); | |
916 | ||
917 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
918 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
919 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
920 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
921 | ||
922 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, | |
923 | ALARM2(ADT7473_FAN1_ALARM)); | |
924 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
925 | ALARM2(ADT7473_FAN2_ALARM)); | |
926 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
927 | ALARM2(ADT7473_FAN3_ALARM)); | |
928 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
929 | ALARM2(ADT7473_FAN4_ALARM)); | |
930 | ||
931 | static SENSOR_DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO, | |
932 | show_max_duty_at_crit, set_max_duty_at_crit, 0); | |
933 | ||
934 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
935 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
936 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
937 | ||
938 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
939 | show_pwm_min, set_pwm_min, 0); | |
940 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
941 | show_pwm_min, set_pwm_min, 1); | |
942 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
943 | show_pwm_min, set_pwm_min, 2); | |
944 | ||
945 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
946 | show_pwm_max, set_pwm_max, 0); | |
947 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
948 | show_pwm_max, set_pwm_max, 1); | |
949 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
950 | show_pwm_max, set_pwm_max, 2); | |
951 | ||
952 | static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
953 | show_temp_tmin, set_temp_tmin, 0); | |
954 | static SENSOR_DEVICE_ATTR(temp2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
955 | show_temp_tmin, set_temp_tmin, 1); | |
956 | static SENSOR_DEVICE_ATTR(temp3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
957 | show_temp_tmin, set_temp_tmin, 2); | |
958 | ||
959 | static SENSOR_DEVICE_ATTR(temp1_auto_point2_temp, S_IWUSR | S_IRUGO, | |
960 | show_temp_tmax, set_temp_tmax, 0); | |
961 | static SENSOR_DEVICE_ATTR(temp2_auto_point2_temp, S_IWUSR | S_IRUGO, | |
962 | show_temp_tmax, set_temp_tmax, 1); | |
963 | static SENSOR_DEVICE_ATTR(temp3_auto_point2_temp, S_IWUSR | S_IRUGO, | |
964 | show_temp_tmax, set_temp_tmax, 2); | |
965 | ||
966 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
967 | set_pwm_enable, 0); | |
968 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
969 | set_pwm_enable, 1); | |
970 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, | |
971 | set_pwm_enable, 2); | |
972 | ||
973 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
974 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
975 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
976 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
977 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
978 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
979 | ||
980 | static struct attribute *adt7473_attr[] = | |
981 | { | |
982 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
983 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
984 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
985 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
986 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
987 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
988 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
989 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
990 | ||
991 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
992 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
993 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
994 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
995 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
996 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
997 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
998 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
999 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1000 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, | |
1001 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1002 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1003 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, | |
1004 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, | |
1005 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, | |
1006 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, | |
1007 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, | |
1008 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, | |
1009 | ||
1010 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1011 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1012 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1013 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1014 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1015 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1016 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1017 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1018 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
1019 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1020 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1021 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
1022 | ||
1023 | &sensor_dev_attr_pwm_use_point2_pwm_at_crit.dev_attr.attr, | |
1024 | ||
1025 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1026 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1027 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1028 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1029 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1030 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1031 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1032 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1033 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1034 | ||
1035 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1036 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1037 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1038 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1039 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1040 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1041 | ||
1042 | NULL | |
1043 | }; | |
1044 | ||
1045 | static int adt7473_attach_adapter(struct i2c_adapter *adapter) | |
1046 | { | |
1047 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
1048 | return 0; | |
1049 | return i2c_probe(adapter, &addr_data, adt7473_detect); | |
1050 | } | |
1051 | ||
1052 | static int adt7473_detect(struct i2c_adapter *adapter, int address, int kind) | |
1053 | { | |
1054 | struct i2c_client *client; | |
1055 | struct adt7473_data *data; | |
1056 | int err = 0; | |
1057 | ||
1058 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
1059 | goto exit; | |
1060 | ||
1061 | data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL); | |
1062 | if (!data) { | |
1063 | err = -ENOMEM; | |
1064 | goto exit; | |
1065 | } | |
1066 | ||
1067 | client = &data->client; | |
1068 | client->addr = address; | |
1069 | client->adapter = adapter; | |
1070 | client->driver = &adt7473_driver; | |
1071 | ||
1072 | i2c_set_clientdata(client, data); | |
1073 | ||
1074 | mutex_init(&data->lock); | |
1075 | ||
1076 | if (kind <= 0) { | |
1077 | int vendor, device, revision; | |
1078 | ||
1079 | vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR); | |
1080 | if (vendor != ADT7473_VENDOR) { | |
1081 | err = -ENODEV; | |
1082 | goto exit_free; | |
1083 | } | |
1084 | ||
1085 | device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE); | |
1086 | if (device != ADT7473_DEVICE) { | |
1087 | err = -ENODEV; | |
1088 | goto exit_free; | |
1089 | } | |
1090 | ||
1091 | revision = i2c_smbus_read_byte_data(client, | |
1092 | ADT7473_REG_REVISION); | |
1093 | if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69) { | |
1094 | err = -ENODEV; | |
1095 | goto exit_free; | |
1096 | } | |
1097 | } else | |
1098 | dev_dbg(&adapter->dev, "detection forced\n"); | |
1099 | ||
1100 | strlcpy(client->name, "adt7473", I2C_NAME_SIZE); | |
1101 | ||
1102 | err = i2c_attach_client(client); | |
1103 | if (err) | |
1104 | goto exit_free; | |
1105 | ||
1106 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1107 | ||
1108 | /* Initialize the ADT7473 chip */ | |
1109 | adt7473_init_client(client); | |
1110 | ||
1111 | /* Register sysfs hooks */ | |
1112 | data->attrs.attrs = adt7473_attr; | |
1113 | err = sysfs_create_group(&client->dev.kobj, &data->attrs); | |
1114 | if (err) | |
1115 | goto exit_detach; | |
1116 | ||
1117 | data->hwmon_dev = hwmon_device_register(&client->dev); | |
1118 | if (IS_ERR(data->hwmon_dev)) { | |
1119 | err = PTR_ERR(data->hwmon_dev); | |
1120 | goto exit_remove; | |
1121 | } | |
1122 | ||
1123 | return 0; | |
1124 | ||
1125 | exit_remove: | |
1126 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
1127 | exit_detach: | |
1128 | i2c_detach_client(client); | |
1129 | exit_free: | |
1130 | kfree(data); | |
1131 | exit: | |
1132 | return err; | |
1133 | } | |
1134 | ||
1135 | static int adt7473_detach_client(struct i2c_client *client) | |
1136 | { | |
1137 | struct adt7473_data *data = i2c_get_clientdata(client); | |
1138 | ||
1139 | hwmon_device_unregister(data->hwmon_dev); | |
1140 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
1141 | i2c_detach_client(client); | |
1142 | kfree(data); | |
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static int __init adt7473_init(void) | |
1147 | { | |
1148 | return i2c_add_driver(&adt7473_driver); | |
1149 | } | |
1150 | ||
1151 | static void __exit adt7473_exit(void) | |
1152 | { | |
1153 | i2c_del_driver(&adt7473_driver); | |
1154 | } | |
1155 | ||
1156 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1157 | MODULE_DESCRIPTION("ADT7473 driver"); | |
1158 | MODULE_LICENSE("GPL"); | |
1159 | ||
1160 | module_init(adt7473_init); | |
1161 | module_exit(adt7473_exit); |