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1da177e4 | 1 | /* |
fbb6670d GR |
2 | * adm1031.c - Part of lm_sensors, Linux kernel modules for hardware |
3 | * monitoring | |
4 | * Based on lm75.c and lm85.c | |
5 | * Supports adm1030 / adm1031 | |
6 | * Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org> | |
7 | * Reworked by Jean Delvare <khali@linux-fr.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
1da177e4 LT |
23 | |
24 | #include <linux/module.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/jiffies.h> | |
28 | #include <linux/i2c.h> | |
943b0830 | 29 | #include <linux/hwmon.h> |
c801082d | 30 | #include <linux/hwmon-sysfs.h> |
943b0830 | 31 | #include <linux/err.h> |
9a61bf63 | 32 | #include <linux/mutex.h> |
1da177e4 LT |
33 | |
34 | /* Following macros takes channel parameter starting from 0 to 2 */ | |
35 | #define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr)) | |
6d6006b8 | 36 | #define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr)) |
1da177e4 LT |
37 | #define ADM1031_REG_PWM (0x22) |
38 | #define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr)) | |
87c33daa | 39 | #define ADM1031_REG_FAN_FILTER (0x23) |
1da177e4 | 40 | |
49dc9efe | 41 | #define ADM1031_REG_TEMP_OFFSET(nr) (0x0d + (nr)) |
6d6006b8 JD |
42 | #define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr)) |
43 | #define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr)) | |
44 | #define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr)) | |
1da177e4 | 45 | |
6d6006b8 | 46 | #define ADM1031_REG_TEMP(nr) (0x0a + (nr)) |
1da177e4 LT |
47 | #define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr)) |
48 | ||
49 | #define ADM1031_REG_STATUS(nr) (0x2 + (nr)) | |
50 | ||
6d6006b8 JD |
51 | #define ADM1031_REG_CONF1 0x00 |
52 | #define ADM1031_REG_CONF2 0x01 | |
53 | #define ADM1031_REG_EXT_TEMP 0x06 | |
1da177e4 LT |
54 | |
55 | #define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */ | |
56 | #define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */ | |
57 | #define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */ | |
58 | ||
59 | #define ADM1031_CONF2_PWM1_ENABLE 0x01 | |
60 | #define ADM1031_CONF2_PWM2_ENABLE 0x02 | |
61 | #define ADM1031_CONF2_TACH1_ENABLE 0x04 | |
62 | #define ADM1031_CONF2_TACH2_ENABLE 0x08 | |
63 | #define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan)) | |
64 | ||
87c33daa JD |
65 | #define ADM1031_UPDATE_RATE_MASK 0x1c |
66 | #define ADM1031_UPDATE_RATE_SHIFT 2 | |
67 | ||
1da177e4 | 68 | /* Addresses to scan */ |
25e9c86d | 69 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 | 70 | |
e5e9f44c | 71 | enum chips { adm1030, adm1031 }; |
1da177e4 LT |
72 | |
73 | typedef u8 auto_chan_table_t[8][2]; | |
74 | ||
75 | /* Each client has this additional data */ | |
76 | struct adm1031_data { | |
1beeffe4 | 77 | struct device *hwmon_dev; |
9a61bf63 | 78 | struct mutex update_lock; |
1da177e4 LT |
79 | int chip_type; |
80 | char valid; /* !=0 if following fields are valid */ | |
81 | unsigned long last_updated; /* In jiffies */ | |
a51b9944 | 82 | unsigned int update_interval; /* In milliseconds */ |
fbb6670d GR |
83 | /* |
84 | * The chan_select_table contains the possible configurations for | |
1da177e4 LT |
85 | * auto fan control. |
86 | */ | |
6d6006b8 | 87 | const auto_chan_table_t *chan_select_table; |
1da177e4 LT |
88 | u16 alarm; |
89 | u8 conf1; | |
90 | u8 conf2; | |
91 | u8 fan[2]; | |
92 | u8 fan_div[2]; | |
93 | u8 fan_min[2]; | |
94 | u8 pwm[2]; | |
95 | u8 old_pwm[2]; | |
96 | s8 temp[3]; | |
97 | u8 ext_temp[3]; | |
98 | u8 auto_temp[3]; | |
99 | u8 auto_temp_min[3]; | |
100 | u8 auto_temp_off[3]; | |
101 | u8 auto_temp_max[3]; | |
49dc9efe | 102 | s8 temp_offset[3]; |
1da177e4 LT |
103 | s8 temp_min[3]; |
104 | s8 temp_max[3]; | |
105 | s8 temp_crit[3]; | |
106 | }; | |
107 | ||
af200f88 JD |
108 | static int adm1031_probe(struct i2c_client *client, |
109 | const struct i2c_device_id *id); | |
310ec792 | 110 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 111 | struct i2c_board_info *info); |
1da177e4 | 112 | static void adm1031_init_client(struct i2c_client *client); |
af200f88 | 113 | static int adm1031_remove(struct i2c_client *client); |
1da177e4 LT |
114 | static struct adm1031_data *adm1031_update_device(struct device *dev); |
115 | ||
af200f88 JD |
116 | static const struct i2c_device_id adm1031_id[] = { |
117 | { "adm1030", adm1030 }, | |
118 | { "adm1031", adm1031 }, | |
119 | { } | |
120 | }; | |
121 | MODULE_DEVICE_TABLE(i2c, adm1031_id); | |
122 | ||
1da177e4 LT |
123 | /* This is the driver that will be inserted */ |
124 | static struct i2c_driver adm1031_driver = { | |
af200f88 | 125 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 126 | .driver = { |
cdaf7934 LR |
127 | .name = "adm1031", |
128 | }, | |
af200f88 JD |
129 | .probe = adm1031_probe, |
130 | .remove = adm1031_remove, | |
131 | .id_table = adm1031_id, | |
132 | .detect = adm1031_detect, | |
c3813d6a | 133 | .address_list = normal_i2c, |
1da177e4 LT |
134 | }; |
135 | ||
136 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) | |
137 | { | |
138 | return i2c_smbus_read_byte_data(client, reg); | |
139 | } | |
140 | ||
141 | static inline int | |
142 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
143 | { | |
144 | return i2c_smbus_write_byte_data(client, reg, value); | |
145 | } | |
146 | ||
147 | ||
148 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
149 | ((val + 500) / 1000))) | |
150 | ||
151 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
152 | ||
153 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
154 | ||
49dc9efe IS |
155 | #define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f) |
156 | #define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \ | |
157 | (val) | 0x70 : (val)) | |
158 | ||
1c720093 GR |
159 | #define FAN_FROM_REG(reg, div) ((reg) ? \ |
160 | (11250 * 60) / ((reg) * (div)) : 0) | |
1da177e4 LT |
161 | |
162 | static int FAN_TO_REG(int reg, int div) | |
163 | { | |
164 | int tmp; | |
165 | tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div); | |
166 | return tmp > 255 ? 255 : tmp; | |
167 | } | |
168 | ||
169 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
170 | ||
171 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4) | |
172 | #define PWM_FROM_REG(val) ((val) << 4) | |
173 | ||
174 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
175 | #define FAN_CHAN_TO_REG(val, reg) \ | |
176 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
177 | ||
178 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
1c720093 GR |
179 | ((((val) / 500) & 0xf8) | ((reg) & 0x7)) |
180 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1 << ((reg) & 0x7))) | |
1da177e4 LT |
181 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) |
182 | ||
183 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
184 | ||
185 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
186 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
187 | ||
188 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
189 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
190 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
191 | ||
192 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
193 | { | |
194 | int ret; | |
195 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
196 | ||
197 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
198 | ret = ((reg & 0xf8) | | |
199 | (range < 10000 ? 0 : | |
200 | range < 20000 ? 1 : | |
201 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
202 | return ret; | |
203 | } | |
204 | ||
205 | /* FAN auto control */ | |
206 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
1c720093 | 207 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx % 2] |
1da177e4 | 208 | |
fbb6670d GR |
209 | /* |
210 | * The tables below contains the possible values for the auto fan | |
1da177e4 LT |
211 | * control bitfields. the index in the table is the register value. |
212 | * MSb is the auto fan control enable bit, so the four first entries | |
213 | * in the table disables auto fan control when both bitfields are zero. | |
214 | */ | |
6d6006b8 JD |
215 | static const auto_chan_table_t auto_channel_select_table_adm1031 = { |
216 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
217 | { 2 /* 0b010 */ , 4 /* 0b100 */ }, | |
218 | { 2 /* 0b010 */ , 2 /* 0b010 */ }, | |
219 | { 4 /* 0b100 */ , 4 /* 0b100 */ }, | |
220 | { 7 /* 0b111 */ , 7 /* 0b111 */ }, | |
1da177e4 LT |
221 | }; |
222 | ||
6d6006b8 JD |
223 | static const auto_chan_table_t auto_channel_select_table_adm1030 = { |
224 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
225 | { 2 /* 0b10 */ , 0 }, | |
226 | { 0xff /* invalid */ , 0 }, | |
227 | { 0xff /* invalid */ , 0 }, | |
228 | { 3 /* 0b11 */ , 0 }, | |
1da177e4 LT |
229 | }; |
230 | ||
fbb6670d GR |
231 | /* |
232 | * That function checks if a bitfield is valid and returns the other bitfield | |
1da177e4 LT |
233 | * nearest match if no exact match where found. |
234 | */ | |
235 | static int | |
236 | get_fan_auto_nearest(struct adm1031_data *data, | |
1c720093 | 237 | int chan, u8 val, u8 reg, u8 *new_reg) |
1da177e4 LT |
238 | { |
239 | int i; | |
240 | int first_match = -1, exact_match = -1; | |
241 | u8 other_reg_val = | |
242 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
243 | ||
244 | if (val == 0) { | |
245 | *new_reg = 0; | |
246 | return 0; | |
247 | } | |
248 | ||
249 | for (i = 0; i < 8; i++) { | |
250 | if ((val == (*data->chan_select_table)[i][chan]) && | |
251 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
252 | other_reg_val)) { | |
253 | /* We found an exact match */ | |
254 | exact_match = i; | |
255 | break; | |
256 | } else if (val == (*data->chan_select_table)[i][chan] && | |
257 | first_match == -1) { | |
fbb6670d GR |
258 | /* |
259 | * Save the first match in case of an exact match has | |
6d6006b8 | 260 | * not been found |
1da177e4 LT |
261 | */ |
262 | first_match = i; | |
263 | } | |
264 | } | |
265 | ||
1c720093 | 266 | if (exact_match >= 0) |
1da177e4 | 267 | *new_reg = exact_match; |
1c720093 | 268 | else if (first_match >= 0) |
1da177e4 | 269 | *new_reg = first_match; |
1c720093 | 270 | else |
1da177e4 | 271 | return -EINVAL; |
1c720093 | 272 | |
1da177e4 LT |
273 | return 0; |
274 | } | |
275 | ||
c801082d JD |
276 | static ssize_t show_fan_auto_channel(struct device *dev, |
277 | struct device_attribute *attr, char *buf) | |
1da177e4 | 278 | { |
c801082d | 279 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
280 | struct adm1031_data *data = adm1031_update_device(dev); |
281 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
282 | } | |
283 | ||
284 | static ssize_t | |
c801082d JD |
285 | set_fan_auto_channel(struct device *dev, struct device_attribute *attr, |
286 | const char *buf, size_t count) | |
1da177e4 LT |
287 | { |
288 | struct i2c_client *client = to_i2c_client(dev); | |
289 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 290 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 | 291 | long val; |
1da177e4 LT |
292 | u8 reg; |
293 | int ret; | |
294 | u8 old_fan_mode; | |
295 | ||
1c720093 GR |
296 | ret = kstrtol(buf, 10, &val); |
297 | if (ret) | |
298 | return ret; | |
299 | ||
1da177e4 LT |
300 | old_fan_mode = data->conf1; |
301 | ||
9a61bf63 | 302 | mutex_lock(&data->update_lock); |
6d6006b8 | 303 | |
1c720093 GR |
304 | ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®); |
305 | if (ret) { | |
9a61bf63 | 306 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
307 | return ret; |
308 | } | |
6d6006b8 JD |
309 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); |
310 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^ | |
1da177e4 | 311 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { |
1c720093 | 312 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { |
fbb6670d GR |
313 | /* |
314 | * Switch to Auto Fan Mode | |
6d6006b8 | 315 | * Save PWM registers |
fbb6670d GR |
316 | * Set PWM registers to 33% Both |
317 | */ | |
1da177e4 LT |
318 | data->old_pwm[0] = data->pwm[0]; |
319 | data->old_pwm[1] = data->pwm[1]; | |
320 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
321 | } else { | |
322 | /* Switch to Manual Mode */ | |
323 | data->pwm[0] = data->old_pwm[0]; | |
324 | data->pwm[1] = data->old_pwm[1]; | |
325 | /* Restore PWM registers */ | |
6d6006b8 | 326 | adm1031_write_value(client, ADM1031_REG_PWM, |
1da177e4 LT |
327 | data->pwm[0] | (data->pwm[1] << 4)); |
328 | } | |
329 | } | |
330 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
331 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
9a61bf63 | 332 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
333 | return count; |
334 | } | |
335 | ||
c801082d JD |
336 | static SENSOR_DEVICE_ATTR(auto_fan1_channel, S_IRUGO | S_IWUSR, |
337 | show_fan_auto_channel, set_fan_auto_channel, 0); | |
338 | static SENSOR_DEVICE_ATTR(auto_fan2_channel, S_IRUGO | S_IWUSR, | |
339 | show_fan_auto_channel, set_fan_auto_channel, 1); | |
1da177e4 LT |
340 | |
341 | /* Auto Temps */ | |
c801082d JD |
342 | static ssize_t show_auto_temp_off(struct device *dev, |
343 | struct device_attribute *attr, char *buf) | |
1da177e4 | 344 | { |
c801082d | 345 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 346 | struct adm1031_data *data = adm1031_update_device(dev); |
6d6006b8 | 347 | return sprintf(buf, "%d\n", |
1da177e4 LT |
348 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); |
349 | } | |
c801082d JD |
350 | static ssize_t show_auto_temp_min(struct device *dev, |
351 | struct device_attribute *attr, char *buf) | |
1da177e4 | 352 | { |
c801082d | 353 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
354 | struct adm1031_data *data = adm1031_update_device(dev); |
355 | return sprintf(buf, "%d\n", | |
356 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
357 | } | |
358 | static ssize_t | |
c801082d JD |
359 | set_auto_temp_min(struct device *dev, struct device_attribute *attr, |
360 | const char *buf, size_t count) | |
1da177e4 LT |
361 | { |
362 | struct i2c_client *client = to_i2c_client(dev); | |
363 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 364 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
365 | long val; |
366 | int ret; | |
367 | ||
368 | ret = kstrtol(buf, 10, &val); | |
369 | if (ret) | |
370 | return ret; | |
1da177e4 | 371 | |
9a61bf63 | 372 | mutex_lock(&data->update_lock); |
1da177e4 LT |
373 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); |
374 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
375 | data->auto_temp[nr]); | |
9a61bf63 | 376 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
377 | return count; |
378 | } | |
c801082d JD |
379 | static ssize_t show_auto_temp_max(struct device *dev, |
380 | struct device_attribute *attr, char *buf) | |
1da177e4 | 381 | { |
c801082d | 382 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
383 | struct adm1031_data *data = adm1031_update_device(dev); |
384 | return sprintf(buf, "%d\n", | |
385 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
386 | } | |
387 | static ssize_t | |
c801082d JD |
388 | set_auto_temp_max(struct device *dev, struct device_attribute *attr, |
389 | const char *buf, size_t count) | |
1da177e4 LT |
390 | { |
391 | struct i2c_client *client = to_i2c_client(dev); | |
392 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 393 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
394 | long val; |
395 | int ret; | |
396 | ||
397 | ret = kstrtol(buf, 10, &val); | |
398 | if (ret) | |
399 | return ret; | |
1da177e4 | 400 | |
9a61bf63 | 401 | mutex_lock(&data->update_lock); |
1c720093 GR |
402 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], |
403 | data->pwm[nr]); | |
1da177e4 LT |
404 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), |
405 | data->temp_max[nr]); | |
9a61bf63 | 406 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
407 | return count; |
408 | } | |
409 | ||
c801082d JD |
410 | #define auto_temp_reg(offset) \ |
411 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \ | |
412 | show_auto_temp_off, NULL, offset - 1); \ | |
413 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
414 | show_auto_temp_min, set_auto_temp_min, offset - 1); \ | |
415 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
416 | show_auto_temp_max, set_auto_temp_max, offset - 1) | |
1da177e4 LT |
417 | |
418 | auto_temp_reg(1); | |
419 | auto_temp_reg(2); | |
420 | auto_temp_reg(3); | |
421 | ||
422 | /* pwm */ | |
c801082d JD |
423 | static ssize_t show_pwm(struct device *dev, |
424 | struct device_attribute *attr, char *buf) | |
1da177e4 | 425 | { |
c801082d | 426 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
427 | struct adm1031_data *data = adm1031_update_device(dev); |
428 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
429 | } | |
c801082d JD |
430 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
431 | const char *buf, size_t count) | |
1da177e4 LT |
432 | { |
433 | struct i2c_client *client = to_i2c_client(dev); | |
434 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 435 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
436 | long val; |
437 | int ret, reg; | |
438 | ||
439 | ret = kstrtol(buf, 10, &val); | |
440 | if (ret) | |
441 | return ret; | |
1da177e4 | 442 | |
9a61bf63 | 443 | mutex_lock(&data->update_lock); |
6d6006b8 | 444 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && |
1da177e4 LT |
445 | (((val>>4) & 0xf) != 5)) { |
446 | /* In automatic mode, the only PWM accepted is 33% */ | |
9a61bf63 | 447 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
448 | return -EINVAL; |
449 | } | |
450 | data->pwm[nr] = PWM_TO_REG(val); | |
451 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
452 | adm1031_write_value(client, ADM1031_REG_PWM, | |
453 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
454 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
9a61bf63 | 455 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
456 | return count; |
457 | } | |
458 | ||
c801082d JD |
459 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); |
460 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); | |
461 | static SENSOR_DEVICE_ATTR(auto_fan1_min_pwm, S_IRUGO | S_IWUSR, | |
462 | show_pwm, set_pwm, 0); | |
463 | static SENSOR_DEVICE_ATTR(auto_fan2_min_pwm, S_IRUGO | S_IWUSR, | |
464 | show_pwm, set_pwm, 1); | |
1da177e4 LT |
465 | |
466 | /* Fans */ | |
467 | ||
468 | /* | |
469 | * That function checks the cases where the fan reading is not | |
44bbe87e | 470 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
471 | * not supposed to run |
472 | */ | |
473 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
474 | { | |
475 | int res = 0; | |
476 | ||
477 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
478 | switch (data->conf1 & 0x60) { | |
1c720093 GR |
479 | case 0x00: |
480 | /* | |
481 | * remote temp1 controls fan1, | |
482 | * remote temp2 controls fan2 | |
483 | */ | |
1da177e4 | 484 | res = data->temp[chan+1] >= |
1c720093 | 485 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); |
1da177e4 LT |
486 | break; |
487 | case 0x20: /* remote temp1 controls both fans */ | |
488 | res = | |
489 | data->temp[1] >= | |
490 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
491 | break; | |
492 | case 0x40: /* remote temp2 controls both fans */ | |
493 | res = | |
494 | data->temp[2] >= | |
495 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
496 | break; | |
497 | case 0x60: /* max controls both fans */ | |
498 | res = | |
499 | data->temp[0] >= | |
500 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
501 | || data->temp[1] >= | |
502 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
6d6006b8 | 503 | || (data->chip_type == adm1031 |
1da177e4 LT |
504 | && data->temp[2] >= |
505 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
506 | break; | |
507 | } | |
508 | } else { | |
509 | res = data->pwm[chan] > 0; | |
510 | } | |
511 | return res; | |
512 | } | |
513 | ||
514 | ||
c801082d JD |
515 | static ssize_t show_fan(struct device *dev, |
516 | struct device_attribute *attr, char *buf) | |
1da177e4 | 517 | { |
c801082d | 518 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
519 | struct adm1031_data *data = adm1031_update_device(dev); |
520 | int value; | |
521 | ||
522 | value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr], | |
523 | FAN_DIV_FROM_REG(data->fan_div[nr])) : 0; | |
524 | return sprintf(buf, "%d\n", value); | |
525 | } | |
526 | ||
c801082d JD |
527 | static ssize_t show_fan_div(struct device *dev, |
528 | struct device_attribute *attr, char *buf) | |
1da177e4 | 529 | { |
c801082d | 530 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
531 | struct adm1031_data *data = adm1031_update_device(dev); |
532 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
533 | } | |
c801082d JD |
534 | static ssize_t show_fan_min(struct device *dev, |
535 | struct device_attribute *attr, char *buf) | |
1da177e4 | 536 | { |
c801082d | 537 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
538 | struct adm1031_data *data = adm1031_update_device(dev); |
539 | return sprintf(buf, "%d\n", | |
540 | FAN_FROM_REG(data->fan_min[nr], | |
541 | FAN_DIV_FROM_REG(data->fan_div[nr]))); | |
542 | } | |
c801082d JD |
543 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
544 | const char *buf, size_t count) | |
1da177e4 LT |
545 | { |
546 | struct i2c_client *client = to_i2c_client(dev); | |
547 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 548 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
549 | long val; |
550 | int ret; | |
551 | ||
552 | ret = kstrtol(buf, 10, &val); | |
553 | if (ret) | |
554 | return ret; | |
1da177e4 | 555 | |
9a61bf63 | 556 | mutex_lock(&data->update_lock); |
1da177e4 | 557 | if (val) { |
6d6006b8 | 558 | data->fan_min[nr] = |
1da177e4 LT |
559 | FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr])); |
560 | } else { | |
561 | data->fan_min[nr] = 0xff; | |
562 | } | |
563 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 564 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
565 | return count; |
566 | } | |
c801082d JD |
567 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
568 | const char *buf, size_t count) | |
1da177e4 LT |
569 | { |
570 | struct i2c_client *client = to_i2c_client(dev); | |
571 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 572 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 | 573 | long val; |
1da177e4 LT |
574 | u8 tmp; |
575 | int old_div; | |
576 | int new_min; | |
1c720093 GR |
577 | int ret; |
578 | ||
579 | ret = kstrtol(buf, 10, &val); | |
580 | if (ret) | |
581 | return ret; | |
1da177e4 LT |
582 | |
583 | tmp = val == 8 ? 0xc0 : | |
584 | val == 4 ? 0x80 : | |
6d6006b8 JD |
585 | val == 2 ? 0x40 : |
586 | val == 1 ? 0x00 : | |
1da177e4 LT |
587 | 0xff; |
588 | if (tmp == 0xff) | |
589 | return -EINVAL; | |
6d6006b8 | 590 | |
9a61bf63 | 591 | mutex_lock(&data->update_lock); |
38a1f0e9 JD |
592 | /* Get fresh readings */ |
593 | data->fan_div[nr] = adm1031_read_value(client, | |
594 | ADM1031_REG_FAN_DIV(nr)); | |
595 | data->fan_min[nr] = adm1031_read_value(client, | |
596 | ADM1031_REG_FAN_MIN(nr)); | |
597 | ||
598 | /* Write the new clock divider and fan min */ | |
1da177e4 | 599 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); |
6d6006b8 JD |
600 | data->fan_div[nr] = tmp | (0x3f & data->fan_div[nr]); |
601 | new_min = data->fan_min[nr] * old_div / val; | |
1da177e4 | 602 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; |
1da177e4 | 603 | |
6d6006b8 | 604 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), |
1da177e4 | 605 | data->fan_div[nr]); |
6d6006b8 | 606 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), |
1da177e4 | 607 | data->fan_min[nr]); |
38a1f0e9 JD |
608 | |
609 | /* Invalidate the cache: fan speed is no longer valid */ | |
610 | data->valid = 0; | |
9a61bf63 | 611 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
612 | return count; |
613 | } | |
614 | ||
615 | #define fan_offset(offset) \ | |
c801082d JD |
616 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
617 | show_fan, NULL, offset - 1); \ | |
618 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
619 | show_fan_min, set_fan_min, offset - 1); \ | |
620 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
621 | show_fan_div, set_fan_div, offset - 1) | |
1da177e4 LT |
622 | |
623 | fan_offset(1); | |
624 | fan_offset(2); | |
625 | ||
626 | ||
627 | /* Temps */ | |
c801082d JD |
628 | static ssize_t show_temp(struct device *dev, |
629 | struct device_attribute *attr, char *buf) | |
1da177e4 | 630 | { |
c801082d | 631 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
632 | struct adm1031_data *data = adm1031_update_device(dev); |
633 | int ext; | |
634 | ext = nr == 0 ? | |
635 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
636 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
637 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
638 | } | |
49dc9efe IS |
639 | static ssize_t show_temp_offset(struct device *dev, |
640 | struct device_attribute *attr, char *buf) | |
641 | { | |
642 | int nr = to_sensor_dev_attr(attr)->index; | |
643 | struct adm1031_data *data = adm1031_update_device(dev); | |
644 | return sprintf(buf, "%d\n", | |
645 | TEMP_OFFSET_FROM_REG(data->temp_offset[nr])); | |
646 | } | |
c801082d JD |
647 | static ssize_t show_temp_min(struct device *dev, |
648 | struct device_attribute *attr, char *buf) | |
1da177e4 | 649 | { |
c801082d | 650 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
651 | struct adm1031_data *data = adm1031_update_device(dev); |
652 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
653 | } | |
c801082d JD |
654 | static ssize_t show_temp_max(struct device *dev, |
655 | struct device_attribute *attr, char *buf) | |
1da177e4 | 656 | { |
c801082d | 657 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
658 | struct adm1031_data *data = adm1031_update_device(dev); |
659 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
660 | } | |
c801082d JD |
661 | static ssize_t show_temp_crit(struct device *dev, |
662 | struct device_attribute *attr, char *buf) | |
1da177e4 | 663 | { |
c801082d | 664 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
665 | struct adm1031_data *data = adm1031_update_device(dev); |
666 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
667 | } | |
49dc9efe IS |
668 | static ssize_t set_temp_offset(struct device *dev, |
669 | struct device_attribute *attr, const char *buf, | |
670 | size_t count) | |
671 | { | |
672 | struct i2c_client *client = to_i2c_client(dev); | |
673 | struct adm1031_data *data = i2c_get_clientdata(client); | |
674 | int nr = to_sensor_dev_attr(attr)->index; | |
1c720093 GR |
675 | long val; |
676 | int ret; | |
677 | ||
678 | ret = kstrtol(buf, 10, &val); | |
679 | if (ret) | |
680 | return ret; | |
49dc9efe | 681 | |
49dc9efe IS |
682 | val = SENSORS_LIMIT(val, -15000, 15000); |
683 | mutex_lock(&data->update_lock); | |
684 | data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val); | |
685 | adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr), | |
686 | data->temp_offset[nr]); | |
687 | mutex_unlock(&data->update_lock); | |
688 | return count; | |
689 | } | |
c801082d JD |
690 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
691 | const char *buf, size_t count) | |
1da177e4 LT |
692 | { |
693 | struct i2c_client *client = to_i2c_client(dev); | |
694 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 695 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
696 | long val; |
697 | int ret; | |
698 | ||
699 | ret = kstrtol(buf, 10, &val); | |
700 | if (ret) | |
701 | return ret; | |
1da177e4 | 702 | |
1da177e4 | 703 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); |
9a61bf63 | 704 | mutex_lock(&data->update_lock); |
1da177e4 LT |
705 | data->temp_min[nr] = TEMP_TO_REG(val); |
706 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
707 | data->temp_min[nr]); | |
9a61bf63 | 708 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
709 | return count; |
710 | } | |
c801082d JD |
711 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
712 | const char *buf, size_t count) | |
1da177e4 LT |
713 | { |
714 | struct i2c_client *client = to_i2c_client(dev); | |
715 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 716 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
717 | long val; |
718 | int ret; | |
719 | ||
720 | ret = kstrtol(buf, 10, &val); | |
721 | if (ret) | |
722 | return ret; | |
1da177e4 | 723 | |
1da177e4 | 724 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); |
9a61bf63 | 725 | mutex_lock(&data->update_lock); |
1da177e4 LT |
726 | data->temp_max[nr] = TEMP_TO_REG(val); |
727 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
728 | data->temp_max[nr]); | |
9a61bf63 | 729 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
730 | return count; |
731 | } | |
c801082d JD |
732 | static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, |
733 | const char *buf, size_t count) | |
1da177e4 LT |
734 | { |
735 | struct i2c_client *client = to_i2c_client(dev); | |
736 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 737 | int nr = to_sensor_dev_attr(attr)->index; |
1c720093 GR |
738 | long val; |
739 | int ret; | |
740 | ||
741 | ret = kstrtol(buf, 10, &val); | |
742 | if (ret) | |
743 | return ret; | |
1da177e4 | 744 | |
1da177e4 | 745 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); |
9a61bf63 | 746 | mutex_lock(&data->update_lock); |
1da177e4 LT |
747 | data->temp_crit[nr] = TEMP_TO_REG(val); |
748 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
749 | data->temp_crit[nr]); | |
9a61bf63 | 750 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
751 | return count; |
752 | } | |
753 | ||
c801082d JD |
754 | #define temp_reg(offset) \ |
755 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ | |
756 | show_temp, NULL, offset - 1); \ | |
49dc9efe IS |
757 | static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ |
758 | show_temp_offset, set_temp_offset, offset - 1); \ | |
c801082d JD |
759 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ |
760 | show_temp_min, set_temp_min, offset - 1); \ | |
761 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
762 | show_temp_max, set_temp_max, offset - 1); \ | |
763 | static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ | |
764 | show_temp_crit, set_temp_crit, offset - 1) | |
1da177e4 LT |
765 | |
766 | temp_reg(1); | |
767 | temp_reg(2); | |
768 | temp_reg(3); | |
769 | ||
770 | /* Alarms */ | |
1c720093 GR |
771 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
772 | char *buf) | |
1da177e4 LT |
773 | { |
774 | struct adm1031_data *data = adm1031_update_device(dev); | |
775 | return sprintf(buf, "%d\n", data->alarm); | |
776 | } | |
777 | ||
778 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
779 | ||
050ab878 JD |
780 | static ssize_t show_alarm(struct device *dev, |
781 | struct device_attribute *attr, char *buf) | |
782 | { | |
783 | int bitnr = to_sensor_dev_attr(attr)->index; | |
784 | struct adm1031_data *data = adm1031_update_device(dev); | |
785 | return sprintf(buf, "%d\n", (data->alarm >> bitnr) & 1); | |
786 | } | |
787 | ||
788 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
789 | static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_alarm, NULL, 1); | |
790 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 2); | |
791 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); | |
792 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 4); | |
793 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 5); | |
794 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); | |
795 | static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 7); | |
796 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 8); | |
797 | static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_alarm, NULL, 9); | |
798 | static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 10); | |
799 | static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11); | |
800 | static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12); | |
801 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13); | |
802 | static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1da177e4 | 803 | |
a51b9944 GR |
804 | /* Update Interval */ |
805 | static const unsigned int update_intervals[] = { | |
87c33daa JD |
806 | 16000, 8000, 4000, 2000, 1000, 500, 250, 125, |
807 | }; | |
808 | ||
a51b9944 GR |
809 | static ssize_t show_update_interval(struct device *dev, |
810 | struct device_attribute *attr, char *buf) | |
87c33daa JD |
811 | { |
812 | struct i2c_client *client = to_i2c_client(dev); | |
813 | struct adm1031_data *data = i2c_get_clientdata(client); | |
814 | ||
a51b9944 | 815 | return sprintf(buf, "%u\n", data->update_interval); |
87c33daa JD |
816 | } |
817 | ||
a51b9944 GR |
818 | static ssize_t set_update_interval(struct device *dev, |
819 | struct device_attribute *attr, | |
820 | const char *buf, size_t count) | |
87c33daa JD |
821 | { |
822 | struct i2c_client *client = to_i2c_client(dev); | |
823 | struct adm1031_data *data = i2c_get_clientdata(client); | |
824 | unsigned long val; | |
825 | int i, err; | |
826 | u8 reg; | |
827 | ||
179c4fdb | 828 | err = kstrtoul(buf, 10, &val); |
87c33daa JD |
829 | if (err) |
830 | return err; | |
831 | ||
a51b9944 GR |
832 | /* |
833 | * Find the nearest update interval from the table. | |
834 | * Use it to determine the matching update rate. | |
835 | */ | |
836 | for (i = 0; i < ARRAY_SIZE(update_intervals) - 1; i++) { | |
837 | if (val >= update_intervals[i]) | |
87c33daa JD |
838 | break; |
839 | } | |
a51b9944 | 840 | /* if not found, we point to the last entry (lowest update interval) */ |
87c33daa JD |
841 | |
842 | /* set the new update rate while preserving other settings */ | |
843 | reg = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); | |
844 | reg &= ~ADM1031_UPDATE_RATE_MASK; | |
845 | reg |= i << ADM1031_UPDATE_RATE_SHIFT; | |
846 | adm1031_write_value(client, ADM1031_REG_FAN_FILTER, reg); | |
847 | ||
848 | mutex_lock(&data->update_lock); | |
a51b9944 | 849 | data->update_interval = update_intervals[i]; |
87c33daa JD |
850 | mutex_unlock(&data->update_lock); |
851 | ||
852 | return count; | |
853 | } | |
854 | ||
a51b9944 GR |
855 | static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, |
856 | set_update_interval); | |
87c33daa | 857 | |
681c6f7a | 858 | static struct attribute *adm1031_attributes[] = { |
c801082d JD |
859 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
860 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
861 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
050ab878 JD |
862 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
863 | &sensor_dev_attr_fan1_fault.dev_attr.attr, | |
c801082d JD |
864 | &sensor_dev_attr_pwm1.dev_attr.attr, |
865 | &sensor_dev_attr_auto_fan1_channel.dev_attr.attr, | |
866 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
49dc9efe | 867 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
c801082d | 868 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
050ab878 | 869 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, |
c801082d | 870 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
050ab878 | 871 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
c801082d | 872 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
050ab878 | 873 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, |
c801082d | 874 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
49dc9efe | 875 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
c801082d | 876 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
050ab878 | 877 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
c801082d | 878 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
050ab878 | 879 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, |
c801082d | 880 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
050ab878 JD |
881 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, |
882 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
c801082d JD |
883 | |
884 | &sensor_dev_attr_auto_temp1_off.dev_attr.attr, | |
885 | &sensor_dev_attr_auto_temp1_min.dev_attr.attr, | |
886 | &sensor_dev_attr_auto_temp1_max.dev_attr.attr, | |
887 | ||
888 | &sensor_dev_attr_auto_temp2_off.dev_attr.attr, | |
889 | &sensor_dev_attr_auto_temp2_min.dev_attr.attr, | |
890 | &sensor_dev_attr_auto_temp2_max.dev_attr.attr, | |
891 | ||
892 | &sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr, | |
681c6f7a | 893 | |
a51b9944 | 894 | &dev_attr_update_interval.attr, |
681c6f7a MH |
895 | &dev_attr_alarms.attr, |
896 | ||
897 | NULL | |
898 | }; | |
899 | ||
900 | static const struct attribute_group adm1031_group = { | |
901 | .attrs = adm1031_attributes, | |
902 | }; | |
903 | ||
904 | static struct attribute *adm1031_attributes_opt[] = { | |
c801082d JD |
905 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
906 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
907 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
050ab878 JD |
908 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
909 | &sensor_dev_attr_fan2_fault.dev_attr.attr, | |
c801082d JD |
910 | &sensor_dev_attr_pwm2.dev_attr.attr, |
911 | &sensor_dev_attr_auto_fan2_channel.dev_attr.attr, | |
912 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
49dc9efe | 913 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
c801082d | 914 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
050ab878 | 915 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, |
c801082d | 916 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
050ab878 | 917 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, |
c801082d | 918 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
050ab878 JD |
919 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, |
920 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
c801082d JD |
921 | &sensor_dev_attr_auto_temp3_off.dev_attr.attr, |
922 | &sensor_dev_attr_auto_temp3_min.dev_attr.attr, | |
923 | &sensor_dev_attr_auto_temp3_max.dev_attr.attr, | |
924 | &sensor_dev_attr_auto_fan2_min_pwm.dev_attr.attr, | |
681c6f7a MH |
925 | NULL |
926 | }; | |
927 | ||
928 | static const struct attribute_group adm1031_group_opt = { | |
929 | .attrs = adm1031_attributes_opt, | |
930 | }; | |
931 | ||
af200f88 | 932 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 933 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 934 | struct i2c_board_info *info) |
1da177e4 | 935 | { |
af200f88 | 936 | struct i2c_adapter *adapter = client->adapter; |
52df6440 JD |
937 | const char *name; |
938 | int id, co; | |
1da177e4 LT |
939 | |
940 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
af200f88 | 941 | return -ENODEV; |
1da177e4 | 942 | |
52df6440 JD |
943 | id = i2c_smbus_read_byte_data(client, 0x3d); |
944 | co = i2c_smbus_read_byte_data(client, 0x3e); | |
1da177e4 | 945 | |
52df6440 JD |
946 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) |
947 | return -ENODEV; | |
948 | name = (id == 0x30) ? "adm1030" : "adm1031"; | |
1da177e4 | 949 | |
af200f88 | 950 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1da177e4 | 951 | |
af200f88 JD |
952 | return 0; |
953 | } | |
954 | ||
955 | static int adm1031_probe(struct i2c_client *client, | |
956 | const struct i2c_device_id *id) | |
957 | { | |
958 | struct adm1031_data *data; | |
959 | int err; | |
960 | ||
961 | data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL); | |
962 | if (!data) { | |
963 | err = -ENOMEM; | |
964 | goto exit; | |
965 | } | |
966 | ||
967 | i2c_set_clientdata(client, data); | |
968 | data->chip_type = id->driver_data; | |
9a61bf63 | 969 | mutex_init(&data->update_lock); |
1da177e4 | 970 | |
af200f88 JD |
971 | if (data->chip_type == adm1030) |
972 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
973 | else | |
974 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
1da177e4 LT |
975 | |
976 | /* Initialize the ADM1031 chip */ | |
6d6006b8 | 977 | adm1031_init_client(client); |
1da177e4 LT |
978 | |
979 | /* Register sysfs hooks */ | |
1c720093 GR |
980 | err = sysfs_create_group(&client->dev.kobj, &adm1031_group); |
981 | if (err) | |
af200f88 | 982 | goto exit_free; |
1da177e4 | 983 | |
af200f88 | 984 | if (data->chip_type == adm1031) { |
1c720093 GR |
985 | err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt); |
986 | if (err) | |
681c6f7a MH |
987 | goto exit_remove; |
988 | } | |
989 | ||
6d6006b8 | 990 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
991 | if (IS_ERR(data->hwmon_dev)) { |
992 | err = PTR_ERR(data->hwmon_dev); | |
681c6f7a | 993 | goto exit_remove; |
1da177e4 LT |
994 | } |
995 | ||
996 | return 0; | |
997 | ||
681c6f7a | 998 | exit_remove: |
6d6006b8 JD |
999 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
1000 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
1da177e4 | 1001 | exit_free: |
1f57ff89 | 1002 | kfree(data); |
1da177e4 LT |
1003 | exit: |
1004 | return err; | |
1005 | } | |
1006 | ||
af200f88 | 1007 | static int adm1031_remove(struct i2c_client *client) |
1da177e4 | 1008 | { |
943b0830 | 1009 | struct adm1031_data *data = i2c_get_clientdata(client); |
943b0830 | 1010 | |
1beeffe4 | 1011 | hwmon_device_unregister(data->hwmon_dev); |
681c6f7a MH |
1012 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
1013 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
943b0830 | 1014 | kfree(data); |
1da177e4 LT |
1015 | return 0; |
1016 | } | |
1017 | ||
1018 | static void adm1031_init_client(struct i2c_client *client) | |
1019 | { | |
1020 | unsigned int read_val; | |
1021 | unsigned int mask; | |
87c33daa | 1022 | int i; |
1da177e4 LT |
1023 | struct adm1031_data *data = i2c_get_clientdata(client); |
1024 | ||
1025 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
1026 | if (data->chip_type == adm1031) { | |
1027 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
1028 | ADM1031_CONF2_TACH2_ENABLE); | |
6d6006b8 | 1029 | } |
1da177e4 LT |
1030 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ |
1031 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
1c720093 GR |
1032 | if ((read_val | mask) != read_val) |
1033 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
1da177e4 LT |
1034 | |
1035 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
1036 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
1c720093 GR |
1037 | adm1031_write_value(client, ADM1031_REG_CONF1, |
1038 | read_val | ADM1031_CONF1_MONITOR_ENABLE); | |
1da177e4 LT |
1039 | } |
1040 | ||
87c33daa JD |
1041 | /* Read the chip's update rate */ |
1042 | mask = ADM1031_UPDATE_RATE_MASK; | |
1043 | read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); | |
1044 | i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT; | |
a51b9944 GR |
1045 | /* Save it as update interval */ |
1046 | data->update_interval = update_intervals[i]; | |
1da177e4 LT |
1047 | } |
1048 | ||
1049 | static struct adm1031_data *adm1031_update_device(struct device *dev) | |
1050 | { | |
1051 | struct i2c_client *client = to_i2c_client(dev); | |
1052 | struct adm1031_data *data = i2c_get_clientdata(client); | |
87c33daa | 1053 | unsigned long next_update; |
1da177e4 LT |
1054 | int chan; |
1055 | ||
9a61bf63 | 1056 | mutex_lock(&data->update_lock); |
1da177e4 | 1057 | |
a51b9944 GR |
1058 | next_update = data->last_updated |
1059 | + msecs_to_jiffies(data->update_interval); | |
87c33daa | 1060 | if (time_after(jiffies, next_update) || !data->valid) { |
1da177e4 LT |
1061 | |
1062 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
1063 | for (chan = 0; | |
1064 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
1065 | u8 oldh, newh; | |
1066 | ||
1067 | oldh = | |
1068 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
1069 | data->ext_temp[chan] = | |
1070 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
1071 | newh = | |
1072 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
1073 | if (newh != oldh) { | |
1074 | data->ext_temp[chan] = | |
1075 | adm1031_read_value(client, | |
1076 | ADM1031_REG_EXT_TEMP); | |
1077 | #ifdef DEBUG | |
1078 | oldh = | |
1079 | adm1031_read_value(client, | |
1080 | ADM1031_REG_TEMP(chan)); | |
1081 | ||
1082 | /* oldh is actually newer */ | |
1083 | if (newh != oldh) | |
1084 | dev_warn(&client->dev, | |
1c720093 | 1085 | "Remote temperature may be wrong.\n"); |
1da177e4 LT |
1086 | #endif |
1087 | } | |
1088 | data->temp[chan] = newh; | |
1089 | ||
49dc9efe IS |
1090 | data->temp_offset[chan] = |
1091 | adm1031_read_value(client, | |
1092 | ADM1031_REG_TEMP_OFFSET(chan)); | |
1da177e4 LT |
1093 | data->temp_min[chan] = |
1094 | adm1031_read_value(client, | |
1095 | ADM1031_REG_TEMP_MIN(chan)); | |
1096 | data->temp_max[chan] = | |
1097 | adm1031_read_value(client, | |
1098 | ADM1031_REG_TEMP_MAX(chan)); | |
1099 | data->temp_crit[chan] = | |
1100 | adm1031_read_value(client, | |
1101 | ADM1031_REG_TEMP_CRIT(chan)); | |
1102 | data->auto_temp[chan] = | |
1103 | adm1031_read_value(client, | |
1104 | ADM1031_REG_AUTO_TEMP(chan)); | |
1105 | ||
1106 | } | |
1107 | ||
1108 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
1109 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
1110 | ||
1111 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
1c720093 GR |
1112 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8); |
1113 | if (data->chip_type == adm1030) | |
1da177e4 | 1114 | data->alarm &= 0xc0ff; |
6d6006b8 | 1115 | |
1c720093 GR |
1116 | for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2); |
1117 | chan++) { | |
1da177e4 | 1118 | data->fan_div[chan] = |
1c720093 GR |
1119 | adm1031_read_value(client, |
1120 | ADM1031_REG_FAN_DIV(chan)); | |
1da177e4 | 1121 | data->fan_min[chan] = |
1c720093 GR |
1122 | adm1031_read_value(client, |
1123 | ADM1031_REG_FAN_MIN(chan)); | |
1da177e4 | 1124 | data->fan[chan] = |
1c720093 GR |
1125 | adm1031_read_value(client, |
1126 | ADM1031_REG_FAN_SPEED(chan)); | |
1da177e4 | 1127 | data->pwm[chan] = |
1c720093 GR |
1128 | (adm1031_read_value(client, |
1129 | ADM1031_REG_PWM) >> (4 * chan)) & 0x0f; | |
1da177e4 LT |
1130 | } |
1131 | data->last_updated = jiffies; | |
1132 | data->valid = 1; | |
1133 | } | |
1134 | ||
9a61bf63 | 1135 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1136 | |
1137 | return data; | |
1138 | } | |
1139 | ||
f0967eea | 1140 | module_i2c_driver(adm1031_driver); |
1da177e4 LT |
1141 | |
1142 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
1143 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
1144 | MODULE_LICENSE("GPL"); |