Commit | Line | Data |
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74ba9207 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 | 2 | /* |
fbb6670d GR |
3 | * adm1031.c - Part of lm_sensors, Linux kernel modules for hardware |
4 | * monitoring | |
5 | * Based on lm75.c and lm85.c | |
6 | * Supports adm1030 / adm1031 | |
7 | * Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org> | |
7c81c60f | 8 | * Reworked by Jean Delvare <jdelvare@suse.de> |
fbb6670d | 9 | */ |
1da177e4 LT |
10 | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/jiffies.h> | |
15 | #include <linux/i2c.h> | |
943b0830 | 16 | #include <linux/hwmon.h> |
c801082d | 17 | #include <linux/hwmon-sysfs.h> |
943b0830 | 18 | #include <linux/err.h> |
9a61bf63 | 19 | #include <linux/mutex.h> |
1da177e4 LT |
20 | |
21 | /* Following macros takes channel parameter starting from 0 to 2 */ | |
22 | #define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr)) | |
6d6006b8 | 23 | #define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr)) |
1da177e4 LT |
24 | #define ADM1031_REG_PWM (0x22) |
25 | #define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr)) | |
87c33daa | 26 | #define ADM1031_REG_FAN_FILTER (0x23) |
1da177e4 | 27 | |
49dc9efe | 28 | #define ADM1031_REG_TEMP_OFFSET(nr) (0x0d + (nr)) |
6d6006b8 JD |
29 | #define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr)) |
30 | #define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr)) | |
31 | #define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr)) | |
1da177e4 | 32 | |
6d6006b8 | 33 | #define ADM1031_REG_TEMP(nr) (0x0a + (nr)) |
1da177e4 LT |
34 | #define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr)) |
35 | ||
36 | #define ADM1031_REG_STATUS(nr) (0x2 + (nr)) | |
37 | ||
6d6006b8 JD |
38 | #define ADM1031_REG_CONF1 0x00 |
39 | #define ADM1031_REG_CONF2 0x01 | |
40 | #define ADM1031_REG_EXT_TEMP 0x06 | |
1da177e4 LT |
41 | |
42 | #define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */ | |
43 | #define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */ | |
44 | #define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */ | |
45 | ||
46 | #define ADM1031_CONF2_PWM1_ENABLE 0x01 | |
47 | #define ADM1031_CONF2_PWM2_ENABLE 0x02 | |
48 | #define ADM1031_CONF2_TACH1_ENABLE 0x04 | |
49 | #define ADM1031_CONF2_TACH2_ENABLE 0x08 | |
50 | #define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan)) | |
51 | ||
87c33daa JD |
52 | #define ADM1031_UPDATE_RATE_MASK 0x1c |
53 | #define ADM1031_UPDATE_RATE_SHIFT 2 | |
54 | ||
1da177e4 | 55 | /* Addresses to scan */ |
25e9c86d | 56 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 | 57 | |
e5e9f44c | 58 | enum chips { adm1030, adm1031 }; |
1da177e4 LT |
59 | |
60 | typedef u8 auto_chan_table_t[8][2]; | |
61 | ||
62 | /* Each client has this additional data */ | |
63 | struct adm1031_data { | |
b060f3c4 AL |
64 | struct i2c_client *client; |
65 | const struct attribute_group *groups[3]; | |
9a61bf63 | 66 | struct mutex update_lock; |
1da177e4 LT |
67 | int chip_type; |
68 | char valid; /* !=0 if following fields are valid */ | |
69 | unsigned long last_updated; /* In jiffies */ | |
a51b9944 | 70 | unsigned int update_interval; /* In milliseconds */ |
fbb6670d GR |
71 | /* |
72 | * The chan_select_table contains the possible configurations for | |
1da177e4 LT |
73 | * auto fan control. |
74 | */ | |
6d6006b8 | 75 | const auto_chan_table_t *chan_select_table; |
1da177e4 LT |
76 | u16 alarm; |
77 | u8 conf1; | |
78 | u8 conf2; | |
79 | u8 fan[2]; | |
80 | u8 fan_div[2]; | |
81 | u8 fan_min[2]; | |
82 | u8 pwm[2]; | |
83 | u8 old_pwm[2]; | |
84 | s8 temp[3]; | |
85 | u8 ext_temp[3]; | |
86 | u8 auto_temp[3]; | |
87 | u8 auto_temp_min[3]; | |
88 | u8 auto_temp_off[3]; | |
89 | u8 auto_temp_max[3]; | |
49dc9efe | 90 | s8 temp_offset[3]; |
1da177e4 LT |
91 | s8 temp_min[3]; |
92 | s8 temp_max[3]; | |
93 | s8 temp_crit[3]; | |
94 | }; | |
95 | ||
1da177e4 LT |
96 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) |
97 | { | |
98 | return i2c_smbus_read_byte_data(client, reg); | |
99 | } | |
100 | ||
101 | static inline int | |
102 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
103 | { | |
104 | return i2c_smbus_write_byte_data(client, reg, value); | |
105 | } | |
106 | ||
278ee1c8 AL |
107 | static struct adm1031_data *adm1031_update_device(struct device *dev) |
108 | { | |
b060f3c4 AL |
109 | struct adm1031_data *data = dev_get_drvdata(dev); |
110 | struct i2c_client *client = data->client; | |
278ee1c8 AL |
111 | unsigned long next_update; |
112 | int chan; | |
113 | ||
114 | mutex_lock(&data->update_lock); | |
115 | ||
116 | next_update = data->last_updated | |
117 | + msecs_to_jiffies(data->update_interval); | |
118 | if (time_after(jiffies, next_update) || !data->valid) { | |
119 | ||
120 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
121 | for (chan = 0; | |
122 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
123 | u8 oldh, newh; | |
124 | ||
125 | oldh = | |
126 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
127 | data->ext_temp[chan] = | |
128 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
129 | newh = | |
130 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
131 | if (newh != oldh) { | |
132 | data->ext_temp[chan] = | |
133 | adm1031_read_value(client, | |
134 | ADM1031_REG_EXT_TEMP); | |
135 | #ifdef DEBUG | |
136 | oldh = | |
137 | adm1031_read_value(client, | |
138 | ADM1031_REG_TEMP(chan)); | |
139 | ||
140 | /* oldh is actually newer */ | |
141 | if (newh != oldh) | |
142 | dev_warn(&client->dev, | |
143 | "Remote temperature may be wrong.\n"); | |
144 | #endif | |
145 | } | |
146 | data->temp[chan] = newh; | |
147 | ||
148 | data->temp_offset[chan] = | |
149 | adm1031_read_value(client, | |
150 | ADM1031_REG_TEMP_OFFSET(chan)); | |
151 | data->temp_min[chan] = | |
152 | adm1031_read_value(client, | |
153 | ADM1031_REG_TEMP_MIN(chan)); | |
154 | data->temp_max[chan] = | |
155 | adm1031_read_value(client, | |
156 | ADM1031_REG_TEMP_MAX(chan)); | |
157 | data->temp_crit[chan] = | |
158 | adm1031_read_value(client, | |
159 | ADM1031_REG_TEMP_CRIT(chan)); | |
160 | data->auto_temp[chan] = | |
161 | adm1031_read_value(client, | |
162 | ADM1031_REG_AUTO_TEMP(chan)); | |
163 | ||
164 | } | |
165 | ||
166 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
167 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
168 | ||
169 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
170 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8); | |
171 | if (data->chip_type == adm1030) | |
172 | data->alarm &= 0xc0ff; | |
173 | ||
174 | for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2); | |
175 | chan++) { | |
176 | data->fan_div[chan] = | |
177 | adm1031_read_value(client, | |
178 | ADM1031_REG_FAN_DIV(chan)); | |
179 | data->fan_min[chan] = | |
180 | adm1031_read_value(client, | |
181 | ADM1031_REG_FAN_MIN(chan)); | |
182 | data->fan[chan] = | |
183 | adm1031_read_value(client, | |
184 | ADM1031_REG_FAN_SPEED(chan)); | |
185 | data->pwm[chan] = | |
186 | (adm1031_read_value(client, | |
187 | ADM1031_REG_PWM) >> (4 * chan)) & 0x0f; | |
188 | } | |
189 | data->last_updated = jiffies; | |
190 | data->valid = 1; | |
191 | } | |
192 | ||
193 | mutex_unlock(&data->update_lock); | |
194 | ||
195 | return data; | |
196 | } | |
1da177e4 LT |
197 | |
198 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
199 | ((val + 500) / 1000))) | |
200 | ||
201 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
202 | ||
203 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
204 | ||
49dc9efe IS |
205 | #define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f) |
206 | #define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \ | |
207 | (val) | 0x70 : (val)) | |
208 | ||
1c720093 GR |
209 | #define FAN_FROM_REG(reg, div) ((reg) ? \ |
210 | (11250 * 60) / ((reg) * (div)) : 0) | |
1da177e4 LT |
211 | |
212 | static int FAN_TO_REG(int reg, int div) | |
213 | { | |
214 | int tmp; | |
2a844c14 | 215 | tmp = FAN_FROM_REG(clamp_val(reg, 0, 65535), div); |
1da177e4 LT |
216 | return tmp > 255 ? 255 : tmp; |
217 | } | |
218 | ||
219 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
220 | ||
2a844c14 | 221 | #define PWM_TO_REG(val) (clamp_val((val), 0, 255) >> 4) |
1da177e4 LT |
222 | #define PWM_FROM_REG(val) ((val) << 4) |
223 | ||
224 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
225 | #define FAN_CHAN_TO_REG(val, reg) \ | |
226 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
227 | ||
228 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
1c720093 GR |
229 | ((((val) / 500) & 0xf8) | ((reg) & 0x7)) |
230 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1 << ((reg) & 0x7))) | |
1da177e4 LT |
231 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) |
232 | ||
233 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
234 | ||
235 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
236 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
237 | ||
238 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
239 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
240 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
241 | ||
242 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
243 | { | |
244 | int ret; | |
245 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
246 | ||
247 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
248 | ret = ((reg & 0xf8) | | |
249 | (range < 10000 ? 0 : | |
250 | range < 20000 ? 1 : | |
251 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
252 | return ret; | |
253 | } | |
254 | ||
255 | /* FAN auto control */ | |
256 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
1c720093 | 257 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx % 2] |
1da177e4 | 258 | |
fbb6670d GR |
259 | /* |
260 | * The tables below contains the possible values for the auto fan | |
1da177e4 LT |
261 | * control bitfields. the index in the table is the register value. |
262 | * MSb is the auto fan control enable bit, so the four first entries | |
263 | * in the table disables auto fan control when both bitfields are zero. | |
264 | */ | |
6d6006b8 JD |
265 | static const auto_chan_table_t auto_channel_select_table_adm1031 = { |
266 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
267 | { 2 /* 0b010 */ , 4 /* 0b100 */ }, | |
268 | { 2 /* 0b010 */ , 2 /* 0b010 */ }, | |
269 | { 4 /* 0b100 */ , 4 /* 0b100 */ }, | |
270 | { 7 /* 0b111 */ , 7 /* 0b111 */ }, | |
1da177e4 LT |
271 | }; |
272 | ||
6d6006b8 JD |
273 | static const auto_chan_table_t auto_channel_select_table_adm1030 = { |
274 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
275 | { 2 /* 0b10 */ , 0 }, | |
276 | { 0xff /* invalid */ , 0 }, | |
277 | { 0xff /* invalid */ , 0 }, | |
278 | { 3 /* 0b11 */ , 0 }, | |
1da177e4 LT |
279 | }; |
280 | ||
fbb6670d GR |
281 | /* |
282 | * That function checks if a bitfield is valid and returns the other bitfield | |
1da177e4 LT |
283 | * nearest match if no exact match where found. |
284 | */ | |
285 | static int | |
ce15a81d | 286 | get_fan_auto_nearest(struct adm1031_data *data, int chan, u8 val, u8 reg) |
1da177e4 LT |
287 | { |
288 | int i; | |
289 | int first_match = -1, exact_match = -1; | |
290 | u8 other_reg_val = | |
291 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
292 | ||
ce15a81d | 293 | if (val == 0) |
1da177e4 | 294 | return 0; |
1da177e4 LT |
295 | |
296 | for (i = 0; i < 8; i++) { | |
297 | if ((val == (*data->chan_select_table)[i][chan]) && | |
298 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
299 | other_reg_val)) { | |
300 | /* We found an exact match */ | |
301 | exact_match = i; | |
302 | break; | |
303 | } else if (val == (*data->chan_select_table)[i][chan] && | |
304 | first_match == -1) { | |
fbb6670d GR |
305 | /* |
306 | * Save the first match in case of an exact match has | |
6d6006b8 | 307 | * not been found |
1da177e4 LT |
308 | */ |
309 | first_match = i; | |
310 | } | |
311 | } | |
312 | ||
1c720093 | 313 | if (exact_match >= 0) |
ce15a81d | 314 | return exact_match; |
1c720093 | 315 | else if (first_match >= 0) |
ce15a81d | 316 | return first_match; |
1c720093 | 317 | |
ce15a81d | 318 | return -EINVAL; |
1da177e4 LT |
319 | } |
320 | ||
8e757e15 | 321 | static ssize_t fan_auto_channel_show(struct device *dev, |
c801082d | 322 | struct device_attribute *attr, char *buf) |
1da177e4 | 323 | { |
c801082d | 324 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
325 | struct adm1031_data *data = adm1031_update_device(dev); |
326 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
327 | } | |
328 | ||
329 | static ssize_t | |
8e757e15 GR |
330 | fan_auto_channel_store(struct device *dev, struct device_attribute *attr, |
331 | const char *buf, size_t count) | |
1da177e4 | 332 | { |
b060f3c4 AL |
333 | struct adm1031_data *data = dev_get_drvdata(dev); |
334 | struct i2c_client *client = data->client; | |
c801082d | 335 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 | 336 | long val; |
1da177e4 LT |
337 | u8 reg; |
338 | int ret; | |
339 | u8 old_fan_mode; | |
340 | ||
1c720093 GR |
341 | ret = kstrtol(buf, 10, &val); |
342 | if (ret) | |
343 | return ret; | |
344 | ||
1da177e4 LT |
345 | old_fan_mode = data->conf1; |
346 | ||
9a61bf63 | 347 | mutex_lock(&data->update_lock); |
6d6006b8 | 348 | |
ce15a81d GR |
349 | ret = get_fan_auto_nearest(data, nr, val, data->conf1); |
350 | if (ret < 0) { | |
9a61bf63 | 351 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
352 | return ret; |
353 | } | |
ce15a81d | 354 | reg = ret; |
6d6006b8 JD |
355 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); |
356 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^ | |
1da177e4 | 357 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { |
1c720093 | 358 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { |
fbb6670d GR |
359 | /* |
360 | * Switch to Auto Fan Mode | |
6d6006b8 | 361 | * Save PWM registers |
fbb6670d GR |
362 | * Set PWM registers to 33% Both |
363 | */ | |
1da177e4 LT |
364 | data->old_pwm[0] = data->pwm[0]; |
365 | data->old_pwm[1] = data->pwm[1]; | |
366 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
367 | } else { | |
368 | /* Switch to Manual Mode */ | |
369 | data->pwm[0] = data->old_pwm[0]; | |
370 | data->pwm[1] = data->old_pwm[1]; | |
371 | /* Restore PWM registers */ | |
6d6006b8 | 372 | adm1031_write_value(client, ADM1031_REG_PWM, |
1da177e4 LT |
373 | data->pwm[0] | (data->pwm[1] << 4)); |
374 | } | |
375 | } | |
376 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
377 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
9a61bf63 | 378 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
379 | return count; |
380 | } | |
381 | ||
8e757e15 GR |
382 | static SENSOR_DEVICE_ATTR_RW(auto_fan1_channel, fan_auto_channel, 0); |
383 | static SENSOR_DEVICE_ATTR_RW(auto_fan2_channel, fan_auto_channel, 1); | |
1da177e4 LT |
384 | |
385 | /* Auto Temps */ | |
8e757e15 | 386 | static ssize_t auto_temp_off_show(struct device *dev, |
c801082d | 387 | struct device_attribute *attr, char *buf) |
1da177e4 | 388 | { |
c801082d | 389 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 390 | struct adm1031_data *data = adm1031_update_device(dev); |
6d6006b8 | 391 | return sprintf(buf, "%d\n", |
1da177e4 LT |
392 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); |
393 | } | |
8e757e15 | 394 | static ssize_t auto_temp_min_show(struct device *dev, |
c801082d | 395 | struct device_attribute *attr, char *buf) |
1da177e4 | 396 | { |
c801082d | 397 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
398 | struct adm1031_data *data = adm1031_update_device(dev); |
399 | return sprintf(buf, "%d\n", | |
400 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
401 | } | |
402 | static ssize_t | |
8e757e15 GR |
403 | auto_temp_min_store(struct device *dev, struct device_attribute *attr, |
404 | const char *buf, size_t count) | |
1da177e4 | 405 | { |
b060f3c4 AL |
406 | struct adm1031_data *data = dev_get_drvdata(dev); |
407 | struct i2c_client *client = data->client; | |
c801082d | 408 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
409 | long val; |
410 | int ret; | |
411 | ||
412 | ret = kstrtol(buf, 10, &val); | |
413 | if (ret) | |
414 | return ret; | |
1da177e4 | 415 | |
145e74a4 | 416 | val = clamp_val(val, 0, 127000); |
9a61bf63 | 417 | mutex_lock(&data->update_lock); |
1da177e4 LT |
418 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); |
419 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
420 | data->auto_temp[nr]); | |
9a61bf63 | 421 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
422 | return count; |
423 | } | |
8e757e15 | 424 | static ssize_t auto_temp_max_show(struct device *dev, |
c801082d | 425 | struct device_attribute *attr, char *buf) |
1da177e4 | 426 | { |
c801082d | 427 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
428 | struct adm1031_data *data = adm1031_update_device(dev); |
429 | return sprintf(buf, "%d\n", | |
430 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
431 | } | |
432 | static ssize_t | |
8e757e15 GR |
433 | auto_temp_max_store(struct device *dev, struct device_attribute *attr, |
434 | const char *buf, size_t count) | |
1da177e4 | 435 | { |
b060f3c4 AL |
436 | struct adm1031_data *data = dev_get_drvdata(dev); |
437 | struct i2c_client *client = data->client; | |
c801082d | 438 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
439 | long val; |
440 | int ret; | |
441 | ||
442 | ret = kstrtol(buf, 10, &val); | |
443 | if (ret) | |
444 | return ret; | |
1da177e4 | 445 | |
145e74a4 | 446 | val = clamp_val(val, 0, 127000); |
9a61bf63 | 447 | mutex_lock(&data->update_lock); |
1c720093 GR |
448 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], |
449 | data->pwm[nr]); | |
1da177e4 LT |
450 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), |
451 | data->temp_max[nr]); | |
9a61bf63 | 452 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
453 | return count; |
454 | } | |
455 | ||
8e757e15 GR |
456 | static SENSOR_DEVICE_ATTR_RO(auto_temp1_off, auto_temp_off, 0); |
457 | static SENSOR_DEVICE_ATTR_RW(auto_temp1_min, auto_temp_min, 0); | |
458 | static SENSOR_DEVICE_ATTR_RW(auto_temp1_max, auto_temp_max, 0); | |
459 | static SENSOR_DEVICE_ATTR_RO(auto_temp2_off, auto_temp_off, 1); | |
460 | static SENSOR_DEVICE_ATTR_RW(auto_temp2_min, auto_temp_min, 1); | |
461 | static SENSOR_DEVICE_ATTR_RW(auto_temp2_max, auto_temp_max, 1); | |
462 | static SENSOR_DEVICE_ATTR_RO(auto_temp3_off, auto_temp_off, 2); | |
463 | static SENSOR_DEVICE_ATTR_RW(auto_temp3_min, auto_temp_min, 2); | |
464 | static SENSOR_DEVICE_ATTR_RW(auto_temp3_max, auto_temp_max, 2); | |
1da177e4 LT |
465 | |
466 | /* pwm */ | |
8e757e15 GR |
467 | static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
468 | char *buf) | |
1da177e4 | 469 | { |
c801082d | 470 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
471 | struct adm1031_data *data = adm1031_update_device(dev); |
472 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
473 | } | |
8e757e15 GR |
474 | static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
475 | const char *buf, size_t count) | |
1da177e4 | 476 | { |
b060f3c4 AL |
477 | struct adm1031_data *data = dev_get_drvdata(dev); |
478 | struct i2c_client *client = data->client; | |
c801082d | 479 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
480 | long val; |
481 | int ret, reg; | |
482 | ||
483 | ret = kstrtol(buf, 10, &val); | |
484 | if (ret) | |
485 | return ret; | |
1da177e4 | 486 | |
9a61bf63 | 487 | mutex_lock(&data->update_lock); |
6d6006b8 | 488 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && |
1da177e4 LT |
489 | (((val>>4) & 0xf) != 5)) { |
490 | /* In automatic mode, the only PWM accepted is 33% */ | |
9a61bf63 | 491 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
492 | return -EINVAL; |
493 | } | |
494 | data->pwm[nr] = PWM_TO_REG(val); | |
495 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
496 | adm1031_write_value(client, ADM1031_REG_PWM, | |
497 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
498 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
9a61bf63 | 499 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
500 | return count; |
501 | } | |
502 | ||
8e757e15 GR |
503 | static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); |
504 | static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); | |
505 | static SENSOR_DEVICE_ATTR_RW(auto_fan1_min_pwm, pwm, 0); | |
506 | static SENSOR_DEVICE_ATTR_RW(auto_fan2_min_pwm, pwm, 1); | |
1da177e4 LT |
507 | |
508 | /* Fans */ | |
509 | ||
510 | /* | |
511 | * That function checks the cases where the fan reading is not | |
44bbe87e | 512 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
513 | * not supposed to run |
514 | */ | |
515 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
516 | { | |
517 | int res = 0; | |
518 | ||
519 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
520 | switch (data->conf1 & 0x60) { | |
1c720093 GR |
521 | case 0x00: |
522 | /* | |
523 | * remote temp1 controls fan1, | |
524 | * remote temp2 controls fan2 | |
525 | */ | |
1da177e4 | 526 | res = data->temp[chan+1] >= |
1c720093 | 527 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); |
1da177e4 LT |
528 | break; |
529 | case 0x20: /* remote temp1 controls both fans */ | |
530 | res = | |
531 | data->temp[1] >= | |
532 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
533 | break; | |
534 | case 0x40: /* remote temp2 controls both fans */ | |
535 | res = | |
536 | data->temp[2] >= | |
537 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
538 | break; | |
539 | case 0x60: /* max controls both fans */ | |
540 | res = | |
541 | data->temp[0] >= | |
542 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
543 | || data->temp[1] >= | |
544 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
6d6006b8 | 545 | || (data->chip_type == adm1031 |
1da177e4 LT |
546 | && data->temp[2] >= |
547 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
548 | break; | |
549 | } | |
550 | } else { | |
551 | res = data->pwm[chan] > 0; | |
552 | } | |
553 | return res; | |
554 | } | |
555 | ||
8e757e15 GR |
556 | static ssize_t fan_show(struct device *dev, struct device_attribute *attr, |
557 | char *buf) | |
1da177e4 | 558 | { |
c801082d | 559 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
560 | struct adm1031_data *data = adm1031_update_device(dev); |
561 | int value; | |
562 | ||
563 | value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr], | |
564 | FAN_DIV_FROM_REG(data->fan_div[nr])) : 0; | |
565 | return sprintf(buf, "%d\n", value); | |
566 | } | |
567 | ||
8e757e15 GR |
568 | static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr, |
569 | char *buf) | |
1da177e4 | 570 | { |
c801082d | 571 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
572 | struct adm1031_data *data = adm1031_update_device(dev); |
573 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
574 | } | |
8e757e15 GR |
575 | static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, |
576 | char *buf) | |
1da177e4 | 577 | { |
c801082d | 578 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
579 | struct adm1031_data *data = adm1031_update_device(dev); |
580 | return sprintf(buf, "%d\n", | |
581 | FAN_FROM_REG(data->fan_min[nr], | |
582 | FAN_DIV_FROM_REG(data->fan_div[nr]))); | |
583 | } | |
8e757e15 GR |
584 | static ssize_t fan_min_store(struct device *dev, |
585 | struct device_attribute *attr, const char *buf, | |
586 | size_t count) | |
1da177e4 | 587 | { |
b060f3c4 AL |
588 | struct adm1031_data *data = dev_get_drvdata(dev); |
589 | struct i2c_client *client = data->client; | |
c801082d | 590 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
591 | long val; |
592 | int ret; | |
593 | ||
594 | ret = kstrtol(buf, 10, &val); | |
595 | if (ret) | |
596 | return ret; | |
1da177e4 | 597 | |
9a61bf63 | 598 | mutex_lock(&data->update_lock); |
1da177e4 | 599 | if (val) { |
6d6006b8 | 600 | data->fan_min[nr] = |
1da177e4 LT |
601 | FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr])); |
602 | } else { | |
603 | data->fan_min[nr] = 0xff; | |
604 | } | |
605 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 606 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
607 | return count; |
608 | } | |
8e757e15 GR |
609 | static ssize_t fan_div_store(struct device *dev, |
610 | struct device_attribute *attr, const char *buf, | |
611 | size_t count) | |
1da177e4 | 612 | { |
b060f3c4 AL |
613 | struct adm1031_data *data = dev_get_drvdata(dev); |
614 | struct i2c_client *client = data->client; | |
c801082d | 615 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 | 616 | long val; |
1da177e4 LT |
617 | u8 tmp; |
618 | int old_div; | |
619 | int new_min; | |
1c720093 GR |
620 | int ret; |
621 | ||
622 | ret = kstrtol(buf, 10, &val); | |
623 | if (ret) | |
624 | return ret; | |
1da177e4 LT |
625 | |
626 | tmp = val == 8 ? 0xc0 : | |
627 | val == 4 ? 0x80 : | |
6d6006b8 JD |
628 | val == 2 ? 0x40 : |
629 | val == 1 ? 0x00 : | |
1da177e4 LT |
630 | 0xff; |
631 | if (tmp == 0xff) | |
632 | return -EINVAL; | |
6d6006b8 | 633 | |
9a61bf63 | 634 | mutex_lock(&data->update_lock); |
38a1f0e9 JD |
635 | /* Get fresh readings */ |
636 | data->fan_div[nr] = adm1031_read_value(client, | |
637 | ADM1031_REG_FAN_DIV(nr)); | |
638 | data->fan_min[nr] = adm1031_read_value(client, | |
639 | ADM1031_REG_FAN_MIN(nr)); | |
640 | ||
641 | /* Write the new clock divider and fan min */ | |
1da177e4 | 642 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); |
6d6006b8 JD |
643 | data->fan_div[nr] = tmp | (0x3f & data->fan_div[nr]); |
644 | new_min = data->fan_min[nr] * old_div / val; | |
1da177e4 | 645 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; |
1da177e4 | 646 | |
6d6006b8 | 647 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), |
1da177e4 | 648 | data->fan_div[nr]); |
6d6006b8 | 649 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), |
1da177e4 | 650 | data->fan_min[nr]); |
38a1f0e9 JD |
651 | |
652 | /* Invalidate the cache: fan speed is no longer valid */ | |
653 | data->valid = 0; | |
9a61bf63 | 654 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
655 | return count; |
656 | } | |
657 | ||
8e757e15 GR |
658 | static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); |
659 | static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); | |
660 | static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); | |
661 | static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); | |
662 | static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); | |
663 | static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); | |
1da177e4 LT |
664 | |
665 | /* Temps */ | |
8e757e15 GR |
666 | static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
667 | char *buf) | |
1da177e4 | 668 | { |
c801082d | 669 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
670 | struct adm1031_data *data = adm1031_update_device(dev); |
671 | int ext; | |
672 | ext = nr == 0 ? | |
673 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
674 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
675 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
676 | } | |
8e757e15 | 677 | static ssize_t temp_offset_show(struct device *dev, |
49dc9efe IS |
678 | struct device_attribute *attr, char *buf) |
679 | { | |
680 | int nr = to_sensor_dev_attr(attr)->index; | |
681 | struct adm1031_data *data = adm1031_update_device(dev); | |
682 | return sprintf(buf, "%d\n", | |
683 | TEMP_OFFSET_FROM_REG(data->temp_offset[nr])); | |
684 | } | |
8e757e15 | 685 | static ssize_t temp_min_show(struct device *dev, |
c801082d | 686 | struct device_attribute *attr, char *buf) |
1da177e4 | 687 | { |
c801082d | 688 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
689 | struct adm1031_data *data = adm1031_update_device(dev); |
690 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
691 | } | |
8e757e15 | 692 | static ssize_t temp_max_show(struct device *dev, |
c801082d | 693 | struct device_attribute *attr, char *buf) |
1da177e4 | 694 | { |
c801082d | 695 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
696 | struct adm1031_data *data = adm1031_update_device(dev); |
697 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
698 | } | |
8e757e15 | 699 | static ssize_t temp_crit_show(struct device *dev, |
c801082d | 700 | struct device_attribute *attr, char *buf) |
1da177e4 | 701 | { |
c801082d | 702 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
703 | struct adm1031_data *data = adm1031_update_device(dev); |
704 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
705 | } | |
8e757e15 GR |
706 | static ssize_t temp_offset_store(struct device *dev, |
707 | struct device_attribute *attr, | |
708 | const char *buf, size_t count) | |
49dc9efe | 709 | { |
b060f3c4 AL |
710 | struct adm1031_data *data = dev_get_drvdata(dev); |
711 | struct i2c_client *client = data->client; | |
49dc9efe | 712 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
713 | long val; |
714 | int ret; | |
715 | ||
716 | ret = kstrtol(buf, 10, &val); | |
717 | if (ret) | |
718 | return ret; | |
49dc9efe | 719 | |
2a844c14 | 720 | val = clamp_val(val, -15000, 15000); |
49dc9efe IS |
721 | mutex_lock(&data->update_lock); |
722 | data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val); | |
723 | adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr), | |
724 | data->temp_offset[nr]); | |
725 | mutex_unlock(&data->update_lock); | |
726 | return count; | |
727 | } | |
8e757e15 GR |
728 | static ssize_t temp_min_store(struct device *dev, |
729 | struct device_attribute *attr, const char *buf, | |
730 | size_t count) | |
1da177e4 | 731 | { |
b060f3c4 AL |
732 | struct adm1031_data *data = dev_get_drvdata(dev); |
733 | struct i2c_client *client = data->client; | |
c801082d | 734 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
735 | long val; |
736 | int ret; | |
737 | ||
738 | ret = kstrtol(buf, 10, &val); | |
739 | if (ret) | |
740 | return ret; | |
1da177e4 | 741 | |
145e74a4 | 742 | val = clamp_val(val, -55000, 127000); |
9a61bf63 | 743 | mutex_lock(&data->update_lock); |
1da177e4 LT |
744 | data->temp_min[nr] = TEMP_TO_REG(val); |
745 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
746 | data->temp_min[nr]); | |
9a61bf63 | 747 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
748 | return count; |
749 | } | |
8e757e15 GR |
750 | static ssize_t temp_max_store(struct device *dev, |
751 | struct device_attribute *attr, const char *buf, | |
752 | size_t count) | |
1da177e4 | 753 | { |
b060f3c4 AL |
754 | struct adm1031_data *data = dev_get_drvdata(dev); |
755 | struct i2c_client *client = data->client; | |
c801082d | 756 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
757 | long val; |
758 | int ret; | |
759 | ||
760 | ret = kstrtol(buf, 10, &val); | |
761 | if (ret) | |
762 | return ret; | |
1da177e4 | 763 | |
145e74a4 | 764 | val = clamp_val(val, -55000, 127000); |
9a61bf63 | 765 | mutex_lock(&data->update_lock); |
1da177e4 LT |
766 | data->temp_max[nr] = TEMP_TO_REG(val); |
767 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
768 | data->temp_max[nr]); | |
9a61bf63 | 769 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
770 | return count; |
771 | } | |
8e757e15 GR |
772 | static ssize_t temp_crit_store(struct device *dev, |
773 | struct device_attribute *attr, const char *buf, | |
774 | size_t count) | |
1da177e4 | 775 | { |
b060f3c4 AL |
776 | struct adm1031_data *data = dev_get_drvdata(dev); |
777 | struct i2c_client *client = data->client; | |
c801082d | 778 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
779 | long val; |
780 | int ret; | |
781 | ||
782 | ret = kstrtol(buf, 10, &val); | |
783 | if (ret) | |
784 | return ret; | |
1da177e4 | 785 | |
145e74a4 | 786 | val = clamp_val(val, -55000, 127000); |
9a61bf63 | 787 | mutex_lock(&data->update_lock); |
1da177e4 LT |
788 | data->temp_crit[nr] = TEMP_TO_REG(val); |
789 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
790 | data->temp_crit[nr]); | |
9a61bf63 | 791 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
792 | return count; |
793 | } | |
794 | ||
8e757e15 GR |
795 | static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); |
796 | static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0); | |
797 | static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); | |
798 | static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); | |
799 | static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0); | |
800 | static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); | |
801 | static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1); | |
802 | static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); | |
803 | static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); | |
804 | static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1); | |
805 | static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); | |
806 | static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2); | |
807 | static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); | |
808 | static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); | |
809 | static SENSOR_DEVICE_ATTR_RW(temp3_crit, temp_crit, 2); | |
1da177e4 LT |
810 | |
811 | /* Alarms */ | |
bfb6b173 | 812 | static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, |
1c720093 | 813 | char *buf) |
1da177e4 LT |
814 | { |
815 | struct adm1031_data *data = adm1031_update_device(dev); | |
816 | return sprintf(buf, "%d\n", data->alarm); | |
817 | } | |
818 | ||
bfb6b173 | 819 | static DEVICE_ATTR_RO(alarms); |
1da177e4 | 820 | |
8e757e15 GR |
821 | static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, |
822 | char *buf) | |
050ab878 JD |
823 | { |
824 | int bitnr = to_sensor_dev_attr(attr)->index; | |
825 | struct adm1031_data *data = adm1031_update_device(dev); | |
826 | return sprintf(buf, "%d\n", (data->alarm >> bitnr) & 1); | |
827 | } | |
828 | ||
8e757e15 GR |
829 | static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 0); |
830 | static SENSOR_DEVICE_ATTR_RO(fan1_fault, alarm, 1); | |
831 | static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 2); | |
832 | static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, alarm, 3); | |
833 | static SENSOR_DEVICE_ATTR_RO(temp2_crit_alarm, alarm, 4); | |
834 | static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 5); | |
835 | static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 6); | |
836 | static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, alarm, 7); | |
837 | static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 8); | |
838 | static SENSOR_DEVICE_ATTR_RO(fan2_fault, alarm, 9); | |
839 | static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, alarm, 10); | |
840 | static SENSOR_DEVICE_ATTR_RO(temp3_min_alarm, alarm, 11); | |
841 | static SENSOR_DEVICE_ATTR_RO(temp3_crit_alarm, alarm, 12); | |
842 | static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 13); | |
843 | static SENSOR_DEVICE_ATTR_RO(temp1_crit_alarm, alarm, 14); | |
1da177e4 | 844 | |
a51b9944 GR |
845 | /* Update Interval */ |
846 | static const unsigned int update_intervals[] = { | |
87c33daa JD |
847 | 16000, 8000, 4000, 2000, 1000, 500, 250, 125, |
848 | }; | |
849 | ||
bfb6b173 | 850 | static ssize_t update_interval_show(struct device *dev, |
a51b9944 | 851 | struct device_attribute *attr, char *buf) |
87c33daa | 852 | { |
b060f3c4 | 853 | struct adm1031_data *data = dev_get_drvdata(dev); |
87c33daa | 854 | |
a51b9944 | 855 | return sprintf(buf, "%u\n", data->update_interval); |
87c33daa JD |
856 | } |
857 | ||
bfb6b173 JL |
858 | static ssize_t update_interval_store(struct device *dev, |
859 | struct device_attribute *attr, | |
860 | const char *buf, size_t count) | |
87c33daa | 861 | { |
b060f3c4 AL |
862 | struct adm1031_data *data = dev_get_drvdata(dev); |
863 | struct i2c_client *client = data->client; | |
87c33daa JD |
864 | unsigned long val; |
865 | int i, err; | |
866 | u8 reg; | |
867 | ||
179c4fdb | 868 | err = kstrtoul(buf, 10, &val); |
87c33daa JD |
869 | if (err) |
870 | return err; | |
871 | ||
a51b9944 GR |
872 | /* |
873 | * Find the nearest update interval from the table. | |
874 | * Use it to determine the matching update rate. | |
875 | */ | |
876 | for (i = 0; i < ARRAY_SIZE(update_intervals) - 1; i++) { | |
877 | if (val >= update_intervals[i]) | |
87c33daa JD |
878 | break; |
879 | } | |
a51b9944 | 880 | /* if not found, we point to the last entry (lowest update interval) */ |
87c33daa JD |
881 | |
882 | /* set the new update rate while preserving other settings */ | |
883 | reg = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); | |
884 | reg &= ~ADM1031_UPDATE_RATE_MASK; | |
885 | reg |= i << ADM1031_UPDATE_RATE_SHIFT; | |
886 | adm1031_write_value(client, ADM1031_REG_FAN_FILTER, reg); | |
887 | ||
888 | mutex_lock(&data->update_lock); | |
a51b9944 | 889 | data->update_interval = update_intervals[i]; |
87c33daa JD |
890 | mutex_unlock(&data->update_lock); |
891 | ||
892 | return count; | |
893 | } | |
894 | ||
bfb6b173 | 895 | static DEVICE_ATTR_RW(update_interval); |
87c33daa | 896 | |
681c6f7a | 897 | static struct attribute *adm1031_attributes[] = { |
c801082d JD |
898 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
899 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
900 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
050ab878 JD |
901 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
902 | &sensor_dev_attr_fan1_fault.dev_attr.attr, | |
c801082d JD |
903 | &sensor_dev_attr_pwm1.dev_attr.attr, |
904 | &sensor_dev_attr_auto_fan1_channel.dev_attr.attr, | |
905 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
49dc9efe | 906 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
c801082d | 907 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
050ab878 | 908 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, |
c801082d | 909 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
050ab878 | 910 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
c801082d | 911 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
050ab878 | 912 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, |
c801082d | 913 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
49dc9efe | 914 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
c801082d | 915 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
050ab878 | 916 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
c801082d | 917 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
050ab878 | 918 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, |
c801082d | 919 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
050ab878 JD |
920 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, |
921 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
c801082d JD |
922 | |
923 | &sensor_dev_attr_auto_temp1_off.dev_attr.attr, | |
924 | &sensor_dev_attr_auto_temp1_min.dev_attr.attr, | |
925 | &sensor_dev_attr_auto_temp1_max.dev_attr.attr, | |
926 | ||
927 | &sensor_dev_attr_auto_temp2_off.dev_attr.attr, | |
928 | &sensor_dev_attr_auto_temp2_min.dev_attr.attr, | |
929 | &sensor_dev_attr_auto_temp2_max.dev_attr.attr, | |
930 | ||
931 | &sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr, | |
681c6f7a | 932 | |
a51b9944 | 933 | &dev_attr_update_interval.attr, |
681c6f7a MH |
934 | &dev_attr_alarms.attr, |
935 | ||
936 | NULL | |
937 | }; | |
938 | ||
939 | static const struct attribute_group adm1031_group = { | |
940 | .attrs = adm1031_attributes, | |
941 | }; | |
942 | ||
943 | static struct attribute *adm1031_attributes_opt[] = { | |
c801082d JD |
944 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
945 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
946 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
050ab878 JD |
947 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
948 | &sensor_dev_attr_fan2_fault.dev_attr.attr, | |
c801082d JD |
949 | &sensor_dev_attr_pwm2.dev_attr.attr, |
950 | &sensor_dev_attr_auto_fan2_channel.dev_attr.attr, | |
951 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
49dc9efe | 952 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
c801082d | 953 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
050ab878 | 954 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, |
c801082d | 955 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
050ab878 | 956 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, |
c801082d | 957 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
050ab878 JD |
958 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, |
959 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
c801082d JD |
960 | &sensor_dev_attr_auto_temp3_off.dev_attr.attr, |
961 | &sensor_dev_attr_auto_temp3_min.dev_attr.attr, | |
962 | &sensor_dev_attr_auto_temp3_max.dev_attr.attr, | |
963 | &sensor_dev_attr_auto_fan2_min_pwm.dev_attr.attr, | |
681c6f7a MH |
964 | NULL |
965 | }; | |
966 | ||
967 | static const struct attribute_group adm1031_group_opt = { | |
968 | .attrs = adm1031_attributes_opt, | |
969 | }; | |
970 | ||
af200f88 | 971 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 972 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 973 | struct i2c_board_info *info) |
1da177e4 | 974 | { |
af200f88 | 975 | struct i2c_adapter *adapter = client->adapter; |
52df6440 JD |
976 | const char *name; |
977 | int id, co; | |
1da177e4 LT |
978 | |
979 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
af200f88 | 980 | return -ENODEV; |
1da177e4 | 981 | |
52df6440 JD |
982 | id = i2c_smbus_read_byte_data(client, 0x3d); |
983 | co = i2c_smbus_read_byte_data(client, 0x3e); | |
1da177e4 | 984 | |
52df6440 JD |
985 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) |
986 | return -ENODEV; | |
987 | name = (id == 0x30) ? "adm1030" : "adm1031"; | |
1da177e4 | 988 | |
af200f88 | 989 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1da177e4 | 990 | |
af200f88 JD |
991 | return 0; |
992 | } | |
993 | ||
278ee1c8 AL |
994 | static void adm1031_init_client(struct i2c_client *client) |
995 | { | |
996 | unsigned int read_val; | |
997 | unsigned int mask; | |
998 | int i; | |
999 | struct adm1031_data *data = i2c_get_clientdata(client); | |
1000 | ||
1001 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
1002 | if (data->chip_type == adm1031) { | |
1003 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
1004 | ADM1031_CONF2_TACH2_ENABLE); | |
1005 | } | |
1006 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ | |
1007 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
1008 | if ((read_val | mask) != read_val) | |
1009 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
1010 | ||
1011 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
1012 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
1013 | adm1031_write_value(client, ADM1031_REG_CONF1, | |
1014 | read_val | ADM1031_CONF1_MONITOR_ENABLE); | |
1015 | } | |
1016 | ||
1017 | /* Read the chip's update rate */ | |
1018 | mask = ADM1031_UPDATE_RATE_MASK; | |
1019 | read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); | |
1020 | i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT; | |
1021 | /* Save it as update interval */ | |
1022 | data->update_interval = update_intervals[i]; | |
1023 | } | |
1024 | ||
67487038 SK |
1025 | static const struct i2c_device_id adm1031_id[]; |
1026 | ||
1027 | static int adm1031_probe(struct i2c_client *client) | |
af200f88 | 1028 | { |
b060f3c4 AL |
1029 | struct device *dev = &client->dev; |
1030 | struct device *hwmon_dev; | |
af200f88 | 1031 | struct adm1031_data *data; |
af200f88 | 1032 | |
b060f3c4 | 1033 | data = devm_kzalloc(dev, sizeof(struct adm1031_data), GFP_KERNEL); |
dc2fd663 GR |
1034 | if (!data) |
1035 | return -ENOMEM; | |
af200f88 JD |
1036 | |
1037 | i2c_set_clientdata(client, data); | |
b060f3c4 | 1038 | data->client = client; |
67487038 | 1039 | data->chip_type = i2c_match_id(adm1031_id, client)->driver_data; |
9a61bf63 | 1040 | mutex_init(&data->update_lock); |
1da177e4 | 1041 | |
af200f88 JD |
1042 | if (data->chip_type == adm1030) |
1043 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
1044 | else | |
1045 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
1da177e4 LT |
1046 | |
1047 | /* Initialize the ADM1031 chip */ | |
6d6006b8 | 1048 | adm1031_init_client(client); |
1da177e4 | 1049 | |
b060f3c4 AL |
1050 | /* sysfs hooks */ |
1051 | data->groups[0] = &adm1031_group; | |
1052 | if (data->chip_type == adm1031) | |
1053 | data->groups[1] = &adm1031_group_opt; | |
1da177e4 | 1054 | |
b060f3c4 AL |
1055 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
1056 | data, data->groups); | |
1057 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
1da177e4 LT |
1058 | } |
1059 | ||
278ee1c8 AL |
1060 | static const struct i2c_device_id adm1031_id[] = { |
1061 | { "adm1030", adm1030 }, | |
1062 | { "adm1031", adm1031 }, | |
1063 | { } | |
1064 | }; | |
1065 | MODULE_DEVICE_TABLE(i2c, adm1031_id); | |
1da177e4 | 1066 | |
278ee1c8 AL |
1067 | static struct i2c_driver adm1031_driver = { |
1068 | .class = I2C_CLASS_HWMON, | |
1069 | .driver = { | |
1070 | .name = "adm1031", | |
1071 | }, | |
67487038 | 1072 | .probe_new = adm1031_probe, |
278ee1c8 AL |
1073 | .id_table = adm1031_id, |
1074 | .detect = adm1031_detect, | |
1075 | .address_list = normal_i2c, | |
1076 | }; | |
1da177e4 | 1077 | |
f0967eea | 1078 | module_i2c_driver(adm1031_driver); |
1da177e4 LT |
1079 | |
1080 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
1081 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
1082 | MODULE_LICENSE("GPL"); |