Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
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> | |
6d6006b8 | 8 | |
1da177e4 LT |
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 | */ | |
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 */ |
1da177e4 LT |
83 | /* The chan_select_table contains the possible configurations for |
84 | * auto fan control. | |
85 | */ | |
6d6006b8 | 86 | const auto_chan_table_t *chan_select_table; |
1da177e4 LT |
87 | u16 alarm; |
88 | u8 conf1; | |
89 | u8 conf2; | |
90 | u8 fan[2]; | |
91 | u8 fan_div[2]; | |
92 | u8 fan_min[2]; | |
93 | u8 pwm[2]; | |
94 | u8 old_pwm[2]; | |
95 | s8 temp[3]; | |
96 | u8 ext_temp[3]; | |
97 | u8 auto_temp[3]; | |
98 | u8 auto_temp_min[3]; | |
99 | u8 auto_temp_off[3]; | |
100 | u8 auto_temp_max[3]; | |
49dc9efe | 101 | s8 temp_offset[3]; |
1da177e4 LT |
102 | s8 temp_min[3]; |
103 | s8 temp_max[3]; | |
104 | s8 temp_crit[3]; | |
105 | }; | |
106 | ||
af200f88 JD |
107 | static int adm1031_probe(struct i2c_client *client, |
108 | const struct i2c_device_id *id); | |
310ec792 | 109 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 110 | struct i2c_board_info *info); |
1da177e4 | 111 | static void adm1031_init_client(struct i2c_client *client); |
af200f88 | 112 | static int adm1031_remove(struct i2c_client *client); |
1da177e4 LT |
113 | static struct adm1031_data *adm1031_update_device(struct device *dev); |
114 | ||
af200f88 JD |
115 | static const struct i2c_device_id adm1031_id[] = { |
116 | { "adm1030", adm1030 }, | |
117 | { "adm1031", adm1031 }, | |
118 | { } | |
119 | }; | |
120 | MODULE_DEVICE_TABLE(i2c, adm1031_id); | |
121 | ||
1da177e4 LT |
122 | /* This is the driver that will be inserted */ |
123 | static struct i2c_driver adm1031_driver = { | |
af200f88 | 124 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 125 | .driver = { |
cdaf7934 LR |
126 | .name = "adm1031", |
127 | }, | |
af200f88 JD |
128 | .probe = adm1031_probe, |
129 | .remove = adm1031_remove, | |
130 | .id_table = adm1031_id, | |
131 | .detect = adm1031_detect, | |
c3813d6a | 132 | .address_list = normal_i2c, |
1da177e4 LT |
133 | }; |
134 | ||
135 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) | |
136 | { | |
137 | return i2c_smbus_read_byte_data(client, reg); | |
138 | } | |
139 | ||
140 | static inline int | |
141 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
142 | { | |
143 | return i2c_smbus_write_byte_data(client, reg, value); | |
144 | } | |
145 | ||
146 | ||
147 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
148 | ((val + 500) / 1000))) | |
149 | ||
150 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
151 | ||
152 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
153 | ||
49dc9efe IS |
154 | #define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f) |
155 | #define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \ | |
156 | (val) | 0x70 : (val)) | |
157 | ||
1da177e4 LT |
158 | #define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0) |
159 | ||
160 | static int FAN_TO_REG(int reg, int div) | |
161 | { | |
162 | int tmp; | |
163 | tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div); | |
164 | return tmp > 255 ? 255 : tmp; | |
165 | } | |
166 | ||
167 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
168 | ||
169 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4) | |
170 | #define PWM_FROM_REG(val) ((val) << 4) | |
171 | ||
172 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
173 | #define FAN_CHAN_TO_REG(val, reg) \ | |
174 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
175 | ||
176 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
177 | ((((val)/500) & 0xf8)|((reg) & 0x7)) | |
178 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7))) | |
179 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) | |
180 | ||
181 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
182 | ||
183 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
184 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
185 | ||
186 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
187 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
188 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
189 | ||
190 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
191 | { | |
192 | int ret; | |
193 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
194 | ||
195 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
196 | ret = ((reg & 0xf8) | | |
197 | (range < 10000 ? 0 : | |
198 | range < 20000 ? 1 : | |
199 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
200 | return ret; | |
201 | } | |
202 | ||
203 | /* FAN auto control */ | |
204 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
205 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2] | |
206 | ||
6d6006b8 | 207 | /* The tables below contains the possible values for the auto fan |
1da177e4 LT |
208 | * control bitfields. the index in the table is the register value. |
209 | * MSb is the auto fan control enable bit, so the four first entries | |
210 | * in the table disables auto fan control when both bitfields are zero. | |
211 | */ | |
6d6006b8 JD |
212 | static const auto_chan_table_t auto_channel_select_table_adm1031 = { |
213 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
214 | { 2 /* 0b010 */ , 4 /* 0b100 */ }, | |
215 | { 2 /* 0b010 */ , 2 /* 0b010 */ }, | |
216 | { 4 /* 0b100 */ , 4 /* 0b100 */ }, | |
217 | { 7 /* 0b111 */ , 7 /* 0b111 */ }, | |
1da177e4 LT |
218 | }; |
219 | ||
6d6006b8 JD |
220 | static const auto_chan_table_t auto_channel_select_table_adm1030 = { |
221 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
222 | { 2 /* 0b10 */ , 0 }, | |
223 | { 0xff /* invalid */ , 0 }, | |
224 | { 0xff /* invalid */ , 0 }, | |
225 | { 3 /* 0b11 */ , 0 }, | |
1da177e4 LT |
226 | }; |
227 | ||
228 | /* That function checks if a bitfield is valid and returns the other bitfield | |
229 | * nearest match if no exact match where found. | |
230 | */ | |
231 | static int | |
232 | get_fan_auto_nearest(struct adm1031_data *data, | |
233 | int chan, u8 val, u8 reg, u8 * new_reg) | |
234 | { | |
235 | int i; | |
236 | int first_match = -1, exact_match = -1; | |
237 | u8 other_reg_val = | |
238 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
239 | ||
240 | if (val == 0) { | |
241 | *new_reg = 0; | |
242 | return 0; | |
243 | } | |
244 | ||
245 | for (i = 0; i < 8; i++) { | |
246 | if ((val == (*data->chan_select_table)[i][chan]) && | |
247 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
248 | other_reg_val)) { | |
249 | /* We found an exact match */ | |
250 | exact_match = i; | |
251 | break; | |
252 | } else if (val == (*data->chan_select_table)[i][chan] && | |
253 | first_match == -1) { | |
6d6006b8 JD |
254 | /* Save the first match in case of an exact match has |
255 | * not been found | |
1da177e4 LT |
256 | */ |
257 | first_match = i; | |
258 | } | |
259 | } | |
260 | ||
261 | if (exact_match >= 0) { | |
262 | *new_reg = exact_match; | |
263 | } else if (first_match >= 0) { | |
264 | *new_reg = first_match; | |
265 | } else { | |
266 | return -EINVAL; | |
267 | } | |
268 | return 0; | |
269 | } | |
270 | ||
c801082d JD |
271 | static ssize_t show_fan_auto_channel(struct device *dev, |
272 | struct device_attribute *attr, char *buf) | |
1da177e4 | 273 | { |
c801082d | 274 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
275 | struct adm1031_data *data = adm1031_update_device(dev); |
276 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
277 | } | |
278 | ||
279 | static ssize_t | |
c801082d JD |
280 | set_fan_auto_channel(struct device *dev, struct device_attribute *attr, |
281 | const char *buf, size_t count) | |
1da177e4 LT |
282 | { |
283 | struct i2c_client *client = to_i2c_client(dev); | |
284 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 285 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
286 | int val = simple_strtol(buf, NULL, 10); |
287 | u8 reg; | |
288 | int ret; | |
289 | u8 old_fan_mode; | |
290 | ||
291 | old_fan_mode = data->conf1; | |
292 | ||
9a61bf63 | 293 | mutex_lock(&data->update_lock); |
6d6006b8 | 294 | |
1da177e4 | 295 | if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) { |
9a61bf63 | 296 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
297 | return ret; |
298 | } | |
6d6006b8 JD |
299 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); |
300 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^ | |
1da177e4 LT |
301 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { |
302 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE){ | |
6d6006b8 JD |
303 | /* Switch to Auto Fan Mode |
304 | * Save PWM registers | |
1da177e4 LT |
305 | * Set PWM registers to 33% Both */ |
306 | data->old_pwm[0] = data->pwm[0]; | |
307 | data->old_pwm[1] = data->pwm[1]; | |
308 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
309 | } else { | |
310 | /* Switch to Manual Mode */ | |
311 | data->pwm[0] = data->old_pwm[0]; | |
312 | data->pwm[1] = data->old_pwm[1]; | |
313 | /* Restore PWM registers */ | |
6d6006b8 | 314 | adm1031_write_value(client, ADM1031_REG_PWM, |
1da177e4 LT |
315 | data->pwm[0] | (data->pwm[1] << 4)); |
316 | } | |
317 | } | |
318 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
319 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
9a61bf63 | 320 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
321 | return count; |
322 | } | |
323 | ||
c801082d JD |
324 | static SENSOR_DEVICE_ATTR(auto_fan1_channel, S_IRUGO | S_IWUSR, |
325 | show_fan_auto_channel, set_fan_auto_channel, 0); | |
326 | static SENSOR_DEVICE_ATTR(auto_fan2_channel, S_IRUGO | S_IWUSR, | |
327 | show_fan_auto_channel, set_fan_auto_channel, 1); | |
1da177e4 LT |
328 | |
329 | /* Auto Temps */ | |
c801082d JD |
330 | static ssize_t show_auto_temp_off(struct device *dev, |
331 | struct device_attribute *attr, char *buf) | |
1da177e4 | 332 | { |
c801082d | 333 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 334 | struct adm1031_data *data = adm1031_update_device(dev); |
6d6006b8 | 335 | return sprintf(buf, "%d\n", |
1da177e4 LT |
336 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); |
337 | } | |
c801082d JD |
338 | static ssize_t show_auto_temp_min(struct device *dev, |
339 | struct device_attribute *attr, char *buf) | |
1da177e4 | 340 | { |
c801082d | 341 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
342 | struct adm1031_data *data = adm1031_update_device(dev); |
343 | return sprintf(buf, "%d\n", | |
344 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
345 | } | |
346 | static ssize_t | |
c801082d JD |
347 | set_auto_temp_min(struct device *dev, struct device_attribute *attr, |
348 | const char *buf, size_t count) | |
1da177e4 LT |
349 | { |
350 | struct i2c_client *client = to_i2c_client(dev); | |
351 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 352 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
353 | int val = simple_strtol(buf, NULL, 10); |
354 | ||
9a61bf63 | 355 | mutex_lock(&data->update_lock); |
1da177e4 LT |
356 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); |
357 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
358 | data->auto_temp[nr]); | |
9a61bf63 | 359 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
360 | return count; |
361 | } | |
c801082d JD |
362 | static ssize_t show_auto_temp_max(struct device *dev, |
363 | struct device_attribute *attr, char *buf) | |
1da177e4 | 364 | { |
c801082d | 365 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
366 | struct adm1031_data *data = adm1031_update_device(dev); |
367 | return sprintf(buf, "%d\n", | |
368 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
369 | } | |
370 | static ssize_t | |
c801082d JD |
371 | set_auto_temp_max(struct device *dev, struct device_attribute *attr, |
372 | const char *buf, size_t count) | |
1da177e4 LT |
373 | { |
374 | struct i2c_client *client = to_i2c_client(dev); | |
375 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 376 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
377 | int val = simple_strtol(buf, NULL, 10); |
378 | ||
9a61bf63 | 379 | mutex_lock(&data->update_lock); |
1da177e4 LT |
380 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]); |
381 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
382 | data->temp_max[nr]); | |
9a61bf63 | 383 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
384 | return count; |
385 | } | |
386 | ||
c801082d JD |
387 | #define auto_temp_reg(offset) \ |
388 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \ | |
389 | show_auto_temp_off, NULL, offset - 1); \ | |
390 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
391 | show_auto_temp_min, set_auto_temp_min, offset - 1); \ | |
392 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
393 | show_auto_temp_max, set_auto_temp_max, offset - 1) | |
1da177e4 LT |
394 | |
395 | auto_temp_reg(1); | |
396 | auto_temp_reg(2); | |
397 | auto_temp_reg(3); | |
398 | ||
399 | /* pwm */ | |
c801082d JD |
400 | static ssize_t show_pwm(struct device *dev, |
401 | struct device_attribute *attr, char *buf) | |
1da177e4 | 402 | { |
c801082d | 403 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
404 | struct adm1031_data *data = adm1031_update_device(dev); |
405 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
406 | } | |
c801082d JD |
407 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
408 | const char *buf, size_t count) | |
1da177e4 LT |
409 | { |
410 | struct i2c_client *client = to_i2c_client(dev); | |
411 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 412 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
413 | int val = simple_strtol(buf, NULL, 10); |
414 | int reg; | |
415 | ||
9a61bf63 | 416 | mutex_lock(&data->update_lock); |
6d6006b8 | 417 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && |
1da177e4 LT |
418 | (((val>>4) & 0xf) != 5)) { |
419 | /* In automatic mode, the only PWM accepted is 33% */ | |
9a61bf63 | 420 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
421 | return -EINVAL; |
422 | } | |
423 | data->pwm[nr] = PWM_TO_REG(val); | |
424 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
425 | adm1031_write_value(client, ADM1031_REG_PWM, | |
426 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
427 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
9a61bf63 | 428 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
429 | return count; |
430 | } | |
431 | ||
c801082d JD |
432 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); |
433 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); | |
434 | static SENSOR_DEVICE_ATTR(auto_fan1_min_pwm, S_IRUGO | S_IWUSR, | |
435 | show_pwm, set_pwm, 0); | |
436 | static SENSOR_DEVICE_ATTR(auto_fan2_min_pwm, S_IRUGO | S_IWUSR, | |
437 | show_pwm, set_pwm, 1); | |
1da177e4 LT |
438 | |
439 | /* Fans */ | |
440 | ||
441 | /* | |
442 | * That function checks the cases where the fan reading is not | |
44bbe87e | 443 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
444 | * not supposed to run |
445 | */ | |
446 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
447 | { | |
448 | int res = 0; | |
449 | ||
450 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
451 | switch (data->conf1 & 0x60) { | |
452 | case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */ | |
453 | res = data->temp[chan+1] >= | |
454 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); | |
455 | break; | |
456 | case 0x20: /* remote temp1 controls both fans */ | |
457 | res = | |
458 | data->temp[1] >= | |
459 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
460 | break; | |
461 | case 0x40: /* remote temp2 controls both fans */ | |
462 | res = | |
463 | data->temp[2] >= | |
464 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
465 | break; | |
466 | case 0x60: /* max controls both fans */ | |
467 | res = | |
468 | data->temp[0] >= | |
469 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
470 | || data->temp[1] >= | |
471 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
6d6006b8 | 472 | || (data->chip_type == adm1031 |
1da177e4 LT |
473 | && data->temp[2] >= |
474 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
475 | break; | |
476 | } | |
477 | } else { | |
478 | res = data->pwm[chan] > 0; | |
479 | } | |
480 | return res; | |
481 | } | |
482 | ||
483 | ||
c801082d JD |
484 | static ssize_t show_fan(struct device *dev, |
485 | struct device_attribute *attr, char *buf) | |
1da177e4 | 486 | { |
c801082d | 487 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
488 | struct adm1031_data *data = adm1031_update_device(dev); |
489 | int value; | |
490 | ||
491 | value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr], | |
492 | FAN_DIV_FROM_REG(data->fan_div[nr])) : 0; | |
493 | return sprintf(buf, "%d\n", value); | |
494 | } | |
495 | ||
c801082d JD |
496 | static ssize_t show_fan_div(struct device *dev, |
497 | struct device_attribute *attr, char *buf) | |
1da177e4 | 498 | { |
c801082d | 499 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
500 | struct adm1031_data *data = adm1031_update_device(dev); |
501 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
502 | } | |
c801082d JD |
503 | static ssize_t show_fan_min(struct device *dev, |
504 | struct device_attribute *attr, char *buf) | |
1da177e4 | 505 | { |
c801082d | 506 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
507 | struct adm1031_data *data = adm1031_update_device(dev); |
508 | return sprintf(buf, "%d\n", | |
509 | FAN_FROM_REG(data->fan_min[nr], | |
510 | FAN_DIV_FROM_REG(data->fan_div[nr]))); | |
511 | } | |
c801082d JD |
512 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
513 | const char *buf, size_t count) | |
1da177e4 LT |
514 | { |
515 | struct i2c_client *client = to_i2c_client(dev); | |
516 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 517 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
518 | int val = simple_strtol(buf, NULL, 10); |
519 | ||
9a61bf63 | 520 | mutex_lock(&data->update_lock); |
1da177e4 | 521 | if (val) { |
6d6006b8 | 522 | data->fan_min[nr] = |
1da177e4 LT |
523 | FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr])); |
524 | } else { | |
525 | data->fan_min[nr] = 0xff; | |
526 | } | |
527 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 528 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
529 | return count; |
530 | } | |
c801082d JD |
531 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
532 | const char *buf, size_t count) | |
1da177e4 LT |
533 | { |
534 | struct i2c_client *client = to_i2c_client(dev); | |
535 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 536 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
537 | int val = simple_strtol(buf, NULL, 10); |
538 | u8 tmp; | |
539 | int old_div; | |
540 | int new_min; | |
541 | ||
542 | tmp = val == 8 ? 0xc0 : | |
543 | val == 4 ? 0x80 : | |
6d6006b8 JD |
544 | val == 2 ? 0x40 : |
545 | val == 1 ? 0x00 : | |
1da177e4 LT |
546 | 0xff; |
547 | if (tmp == 0xff) | |
548 | return -EINVAL; | |
6d6006b8 | 549 | |
9a61bf63 | 550 | mutex_lock(&data->update_lock); |
38a1f0e9 JD |
551 | /* Get fresh readings */ |
552 | data->fan_div[nr] = adm1031_read_value(client, | |
553 | ADM1031_REG_FAN_DIV(nr)); | |
554 | data->fan_min[nr] = adm1031_read_value(client, | |
555 | ADM1031_REG_FAN_MIN(nr)); | |
556 | ||
557 | /* Write the new clock divider and fan min */ | |
1da177e4 | 558 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); |
6d6006b8 JD |
559 | data->fan_div[nr] = tmp | (0x3f & data->fan_div[nr]); |
560 | new_min = data->fan_min[nr] * old_div / val; | |
1da177e4 | 561 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; |
1da177e4 | 562 | |
6d6006b8 | 563 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), |
1da177e4 | 564 | data->fan_div[nr]); |
6d6006b8 | 565 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), |
1da177e4 | 566 | data->fan_min[nr]); |
38a1f0e9 JD |
567 | |
568 | /* Invalidate the cache: fan speed is no longer valid */ | |
569 | data->valid = 0; | |
9a61bf63 | 570 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
571 | return count; |
572 | } | |
573 | ||
574 | #define fan_offset(offset) \ | |
c801082d JD |
575 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
576 | show_fan, NULL, offset - 1); \ | |
577 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
578 | show_fan_min, set_fan_min, offset - 1); \ | |
579 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
580 | show_fan_div, set_fan_div, offset - 1) | |
1da177e4 LT |
581 | |
582 | fan_offset(1); | |
583 | fan_offset(2); | |
584 | ||
585 | ||
586 | /* Temps */ | |
c801082d JD |
587 | static ssize_t show_temp(struct device *dev, |
588 | struct device_attribute *attr, char *buf) | |
1da177e4 | 589 | { |
c801082d | 590 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
591 | struct adm1031_data *data = adm1031_update_device(dev); |
592 | int ext; | |
593 | ext = nr == 0 ? | |
594 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
595 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
596 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
597 | } | |
49dc9efe IS |
598 | static ssize_t show_temp_offset(struct device *dev, |
599 | struct device_attribute *attr, char *buf) | |
600 | { | |
601 | int nr = to_sensor_dev_attr(attr)->index; | |
602 | struct adm1031_data *data = adm1031_update_device(dev); | |
603 | return sprintf(buf, "%d\n", | |
604 | TEMP_OFFSET_FROM_REG(data->temp_offset[nr])); | |
605 | } | |
c801082d JD |
606 | static ssize_t show_temp_min(struct device *dev, |
607 | struct device_attribute *attr, char *buf) | |
1da177e4 | 608 | { |
c801082d | 609 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
610 | struct adm1031_data *data = adm1031_update_device(dev); |
611 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
612 | } | |
c801082d JD |
613 | static ssize_t show_temp_max(struct device *dev, |
614 | struct device_attribute *attr, char *buf) | |
1da177e4 | 615 | { |
c801082d | 616 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
617 | struct adm1031_data *data = adm1031_update_device(dev); |
618 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
619 | } | |
c801082d JD |
620 | static ssize_t show_temp_crit(struct device *dev, |
621 | struct device_attribute *attr, char *buf) | |
1da177e4 | 622 | { |
c801082d | 623 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
624 | struct adm1031_data *data = adm1031_update_device(dev); |
625 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
626 | } | |
49dc9efe IS |
627 | static ssize_t set_temp_offset(struct device *dev, |
628 | struct device_attribute *attr, const char *buf, | |
629 | size_t count) | |
630 | { | |
631 | struct i2c_client *client = to_i2c_client(dev); | |
632 | struct adm1031_data *data = i2c_get_clientdata(client); | |
633 | int nr = to_sensor_dev_attr(attr)->index; | |
634 | int val; | |
635 | ||
636 | val = simple_strtol(buf, NULL, 10); | |
637 | val = SENSORS_LIMIT(val, -15000, 15000); | |
638 | mutex_lock(&data->update_lock); | |
639 | data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val); | |
640 | adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr), | |
641 | data->temp_offset[nr]); | |
642 | mutex_unlock(&data->update_lock); | |
643 | return count; | |
644 | } | |
c801082d JD |
645 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
646 | const char *buf, size_t count) | |
1da177e4 LT |
647 | { |
648 | struct i2c_client *client = to_i2c_client(dev); | |
649 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 650 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
651 | int val; |
652 | ||
653 | val = simple_strtol(buf, NULL, 10); | |
654 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 655 | mutex_lock(&data->update_lock); |
1da177e4 LT |
656 | data->temp_min[nr] = TEMP_TO_REG(val); |
657 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
658 | data->temp_min[nr]); | |
9a61bf63 | 659 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
660 | return count; |
661 | } | |
c801082d JD |
662 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
663 | const char *buf, size_t count) | |
1da177e4 LT |
664 | { |
665 | struct i2c_client *client = to_i2c_client(dev); | |
666 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 667 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
668 | int val; |
669 | ||
670 | val = simple_strtol(buf, NULL, 10); | |
671 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 672 | mutex_lock(&data->update_lock); |
1da177e4 LT |
673 | data->temp_max[nr] = TEMP_TO_REG(val); |
674 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
675 | data->temp_max[nr]); | |
9a61bf63 | 676 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
677 | return count; |
678 | } | |
c801082d JD |
679 | static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, |
680 | const char *buf, size_t count) | |
1da177e4 LT |
681 | { |
682 | struct i2c_client *client = to_i2c_client(dev); | |
683 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 684 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
685 | int val; |
686 | ||
687 | val = simple_strtol(buf, NULL, 10); | |
688 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 689 | mutex_lock(&data->update_lock); |
1da177e4 LT |
690 | data->temp_crit[nr] = TEMP_TO_REG(val); |
691 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
692 | data->temp_crit[nr]); | |
9a61bf63 | 693 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
694 | return count; |
695 | } | |
696 | ||
c801082d JD |
697 | #define temp_reg(offset) \ |
698 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ | |
699 | show_temp, NULL, offset - 1); \ | |
49dc9efe IS |
700 | static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ |
701 | show_temp_offset, set_temp_offset, offset - 1); \ | |
c801082d JD |
702 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ |
703 | show_temp_min, set_temp_min, offset - 1); \ | |
704 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
705 | show_temp_max, set_temp_max, offset - 1); \ | |
706 | static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ | |
707 | show_temp_crit, set_temp_crit, offset - 1) | |
1da177e4 LT |
708 | |
709 | temp_reg(1); | |
710 | temp_reg(2); | |
711 | temp_reg(3); | |
712 | ||
713 | /* Alarms */ | |
30f74292 | 714 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
715 | { |
716 | struct adm1031_data *data = adm1031_update_device(dev); | |
717 | return sprintf(buf, "%d\n", data->alarm); | |
718 | } | |
719 | ||
720 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
721 | ||
050ab878 JD |
722 | static ssize_t show_alarm(struct device *dev, |
723 | struct device_attribute *attr, char *buf) | |
724 | { | |
725 | int bitnr = to_sensor_dev_attr(attr)->index; | |
726 | struct adm1031_data *data = adm1031_update_device(dev); | |
727 | return sprintf(buf, "%d\n", (data->alarm >> bitnr) & 1); | |
728 | } | |
729 | ||
730 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
731 | static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_alarm, NULL, 1); | |
732 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 2); | |
733 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); | |
734 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 4); | |
735 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 5); | |
736 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); | |
737 | static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 7); | |
738 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 8); | |
739 | static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_alarm, NULL, 9); | |
740 | static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 10); | |
741 | static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11); | |
742 | static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12); | |
743 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13); | |
744 | static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1da177e4 | 745 | |
a51b9944 GR |
746 | /* Update Interval */ |
747 | static const unsigned int update_intervals[] = { | |
87c33daa JD |
748 | 16000, 8000, 4000, 2000, 1000, 500, 250, 125, |
749 | }; | |
750 | ||
a51b9944 GR |
751 | static ssize_t show_update_interval(struct device *dev, |
752 | struct device_attribute *attr, char *buf) | |
87c33daa JD |
753 | { |
754 | struct i2c_client *client = to_i2c_client(dev); | |
755 | struct adm1031_data *data = i2c_get_clientdata(client); | |
756 | ||
a51b9944 | 757 | return sprintf(buf, "%u\n", data->update_interval); |
87c33daa JD |
758 | } |
759 | ||
a51b9944 GR |
760 | static ssize_t set_update_interval(struct device *dev, |
761 | struct device_attribute *attr, | |
762 | const char *buf, size_t count) | |
87c33daa JD |
763 | { |
764 | struct i2c_client *client = to_i2c_client(dev); | |
765 | struct adm1031_data *data = i2c_get_clientdata(client); | |
766 | unsigned long val; | |
767 | int i, err; | |
768 | u8 reg; | |
769 | ||
770 | err = strict_strtoul(buf, 10, &val); | |
771 | if (err) | |
772 | return err; | |
773 | ||
a51b9944 GR |
774 | /* |
775 | * Find the nearest update interval from the table. | |
776 | * Use it to determine the matching update rate. | |
777 | */ | |
778 | for (i = 0; i < ARRAY_SIZE(update_intervals) - 1; i++) { | |
779 | if (val >= update_intervals[i]) | |
87c33daa JD |
780 | break; |
781 | } | |
a51b9944 | 782 | /* if not found, we point to the last entry (lowest update interval) */ |
87c33daa JD |
783 | |
784 | /* set the new update rate while preserving other settings */ | |
785 | reg = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); | |
786 | reg &= ~ADM1031_UPDATE_RATE_MASK; | |
787 | reg |= i << ADM1031_UPDATE_RATE_SHIFT; | |
788 | adm1031_write_value(client, ADM1031_REG_FAN_FILTER, reg); | |
789 | ||
790 | mutex_lock(&data->update_lock); | |
a51b9944 | 791 | data->update_interval = update_intervals[i]; |
87c33daa JD |
792 | mutex_unlock(&data->update_lock); |
793 | ||
794 | return count; | |
795 | } | |
796 | ||
a51b9944 GR |
797 | static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, |
798 | set_update_interval); | |
87c33daa | 799 | |
681c6f7a | 800 | static struct attribute *adm1031_attributes[] = { |
c801082d JD |
801 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
802 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
803 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
050ab878 JD |
804 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
805 | &sensor_dev_attr_fan1_fault.dev_attr.attr, | |
c801082d JD |
806 | &sensor_dev_attr_pwm1.dev_attr.attr, |
807 | &sensor_dev_attr_auto_fan1_channel.dev_attr.attr, | |
808 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
49dc9efe | 809 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
c801082d | 810 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
050ab878 | 811 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, |
c801082d | 812 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
050ab878 | 813 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
c801082d | 814 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
050ab878 | 815 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, |
c801082d | 816 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
49dc9efe | 817 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
c801082d | 818 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
050ab878 | 819 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
c801082d | 820 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
050ab878 | 821 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, |
c801082d | 822 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
050ab878 JD |
823 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, |
824 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
c801082d JD |
825 | |
826 | &sensor_dev_attr_auto_temp1_off.dev_attr.attr, | |
827 | &sensor_dev_attr_auto_temp1_min.dev_attr.attr, | |
828 | &sensor_dev_attr_auto_temp1_max.dev_attr.attr, | |
829 | ||
830 | &sensor_dev_attr_auto_temp2_off.dev_attr.attr, | |
831 | &sensor_dev_attr_auto_temp2_min.dev_attr.attr, | |
832 | &sensor_dev_attr_auto_temp2_max.dev_attr.attr, | |
833 | ||
834 | &sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr, | |
681c6f7a | 835 | |
a51b9944 | 836 | &dev_attr_update_interval.attr, |
681c6f7a MH |
837 | &dev_attr_alarms.attr, |
838 | ||
839 | NULL | |
840 | }; | |
841 | ||
842 | static const struct attribute_group adm1031_group = { | |
843 | .attrs = adm1031_attributes, | |
844 | }; | |
845 | ||
846 | static struct attribute *adm1031_attributes_opt[] = { | |
c801082d JD |
847 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
848 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
849 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
050ab878 JD |
850 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
851 | &sensor_dev_attr_fan2_fault.dev_attr.attr, | |
c801082d JD |
852 | &sensor_dev_attr_pwm2.dev_attr.attr, |
853 | &sensor_dev_attr_auto_fan2_channel.dev_attr.attr, | |
854 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
49dc9efe | 855 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
c801082d | 856 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
050ab878 | 857 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, |
c801082d | 858 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
050ab878 | 859 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, |
c801082d | 860 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
050ab878 JD |
861 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, |
862 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
c801082d JD |
863 | &sensor_dev_attr_auto_temp3_off.dev_attr.attr, |
864 | &sensor_dev_attr_auto_temp3_min.dev_attr.attr, | |
865 | &sensor_dev_attr_auto_temp3_max.dev_attr.attr, | |
866 | &sensor_dev_attr_auto_fan2_min_pwm.dev_attr.attr, | |
681c6f7a MH |
867 | NULL |
868 | }; | |
869 | ||
870 | static const struct attribute_group adm1031_group_opt = { | |
871 | .attrs = adm1031_attributes_opt, | |
872 | }; | |
873 | ||
af200f88 | 874 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 875 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 876 | struct i2c_board_info *info) |
1da177e4 | 877 | { |
af200f88 | 878 | struct i2c_adapter *adapter = client->adapter; |
52df6440 JD |
879 | const char *name; |
880 | int id, co; | |
1da177e4 LT |
881 | |
882 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
af200f88 | 883 | return -ENODEV; |
1da177e4 | 884 | |
52df6440 JD |
885 | id = i2c_smbus_read_byte_data(client, 0x3d); |
886 | co = i2c_smbus_read_byte_data(client, 0x3e); | |
1da177e4 | 887 | |
52df6440 JD |
888 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) |
889 | return -ENODEV; | |
890 | name = (id == 0x30) ? "adm1030" : "adm1031"; | |
1da177e4 | 891 | |
af200f88 | 892 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1da177e4 | 893 | |
af200f88 JD |
894 | return 0; |
895 | } | |
896 | ||
897 | static int adm1031_probe(struct i2c_client *client, | |
898 | const struct i2c_device_id *id) | |
899 | { | |
900 | struct adm1031_data *data; | |
901 | int err; | |
902 | ||
903 | data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL); | |
904 | if (!data) { | |
905 | err = -ENOMEM; | |
906 | goto exit; | |
907 | } | |
908 | ||
909 | i2c_set_clientdata(client, data); | |
910 | data->chip_type = id->driver_data; | |
9a61bf63 | 911 | mutex_init(&data->update_lock); |
1da177e4 | 912 | |
af200f88 JD |
913 | if (data->chip_type == adm1030) |
914 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
915 | else | |
916 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
1da177e4 LT |
917 | |
918 | /* Initialize the ADM1031 chip */ | |
6d6006b8 | 919 | adm1031_init_client(client); |
1da177e4 LT |
920 | |
921 | /* Register sysfs hooks */ | |
6d6006b8 | 922 | if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group))) |
af200f88 | 923 | goto exit_free; |
1da177e4 | 924 | |
af200f88 | 925 | if (data->chip_type == adm1031) { |
6d6006b8 | 926 | if ((err = sysfs_create_group(&client->dev.kobj, |
681c6f7a MH |
927 | &adm1031_group_opt))) |
928 | goto exit_remove; | |
929 | } | |
930 | ||
6d6006b8 | 931 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
932 | if (IS_ERR(data->hwmon_dev)) { |
933 | err = PTR_ERR(data->hwmon_dev); | |
681c6f7a | 934 | goto exit_remove; |
1da177e4 LT |
935 | } |
936 | ||
937 | return 0; | |
938 | ||
681c6f7a | 939 | exit_remove: |
6d6006b8 JD |
940 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
941 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
1da177e4 | 942 | exit_free: |
1f57ff89 | 943 | kfree(data); |
1da177e4 LT |
944 | exit: |
945 | return err; | |
946 | } | |
947 | ||
af200f88 | 948 | static int adm1031_remove(struct i2c_client *client) |
1da177e4 | 949 | { |
943b0830 | 950 | struct adm1031_data *data = i2c_get_clientdata(client); |
943b0830 | 951 | |
1beeffe4 | 952 | hwmon_device_unregister(data->hwmon_dev); |
681c6f7a MH |
953 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
954 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
943b0830 | 955 | kfree(data); |
1da177e4 LT |
956 | return 0; |
957 | } | |
958 | ||
959 | static void adm1031_init_client(struct i2c_client *client) | |
960 | { | |
961 | unsigned int read_val; | |
962 | unsigned int mask; | |
87c33daa | 963 | int i; |
1da177e4 LT |
964 | struct adm1031_data *data = i2c_get_clientdata(client); |
965 | ||
966 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
967 | if (data->chip_type == adm1031) { | |
968 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
969 | ADM1031_CONF2_TACH2_ENABLE); | |
6d6006b8 | 970 | } |
1da177e4 LT |
971 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ |
972 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
973 | if ((read_val | mask) != read_val) { | |
974 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
975 | } | |
976 | ||
977 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
978 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
979 | adm1031_write_value(client, ADM1031_REG_CONF1, read_val | | |
980 | ADM1031_CONF1_MONITOR_ENABLE); | |
981 | } | |
982 | ||
87c33daa JD |
983 | /* Read the chip's update rate */ |
984 | mask = ADM1031_UPDATE_RATE_MASK; | |
985 | read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER); | |
986 | i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT; | |
a51b9944 GR |
987 | /* Save it as update interval */ |
988 | data->update_interval = update_intervals[i]; | |
1da177e4 LT |
989 | } |
990 | ||
991 | static struct adm1031_data *adm1031_update_device(struct device *dev) | |
992 | { | |
993 | struct i2c_client *client = to_i2c_client(dev); | |
994 | struct adm1031_data *data = i2c_get_clientdata(client); | |
87c33daa | 995 | unsigned long next_update; |
1da177e4 LT |
996 | int chan; |
997 | ||
9a61bf63 | 998 | mutex_lock(&data->update_lock); |
1da177e4 | 999 | |
a51b9944 GR |
1000 | next_update = data->last_updated |
1001 | + msecs_to_jiffies(data->update_interval); | |
87c33daa | 1002 | if (time_after(jiffies, next_update) || !data->valid) { |
1da177e4 LT |
1003 | |
1004 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
1005 | for (chan = 0; | |
1006 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
1007 | u8 oldh, newh; | |
1008 | ||
1009 | oldh = | |
1010 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
1011 | data->ext_temp[chan] = | |
1012 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
1013 | newh = | |
1014 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
1015 | if (newh != oldh) { | |
1016 | data->ext_temp[chan] = | |
1017 | adm1031_read_value(client, | |
1018 | ADM1031_REG_EXT_TEMP); | |
1019 | #ifdef DEBUG | |
1020 | oldh = | |
1021 | adm1031_read_value(client, | |
1022 | ADM1031_REG_TEMP(chan)); | |
1023 | ||
1024 | /* oldh is actually newer */ | |
1025 | if (newh != oldh) | |
1026 | dev_warn(&client->dev, | |
1027 | "Remote temperature may be " | |
1028 | "wrong.\n"); | |
1029 | #endif | |
1030 | } | |
1031 | data->temp[chan] = newh; | |
1032 | ||
49dc9efe IS |
1033 | data->temp_offset[chan] = |
1034 | adm1031_read_value(client, | |
1035 | ADM1031_REG_TEMP_OFFSET(chan)); | |
1da177e4 LT |
1036 | data->temp_min[chan] = |
1037 | adm1031_read_value(client, | |
1038 | ADM1031_REG_TEMP_MIN(chan)); | |
1039 | data->temp_max[chan] = | |
1040 | adm1031_read_value(client, | |
1041 | ADM1031_REG_TEMP_MAX(chan)); | |
1042 | data->temp_crit[chan] = | |
1043 | adm1031_read_value(client, | |
1044 | ADM1031_REG_TEMP_CRIT(chan)); | |
1045 | data->auto_temp[chan] = | |
1046 | adm1031_read_value(client, | |
1047 | ADM1031_REG_AUTO_TEMP(chan)); | |
1048 | ||
1049 | } | |
1050 | ||
1051 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
1052 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
1053 | ||
1054 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
1055 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) | |
1056 | << 8); | |
1057 | if (data->chip_type == adm1030) { | |
1058 | data->alarm &= 0xc0ff; | |
1059 | } | |
6d6006b8 | 1060 | |
1da177e4 LT |
1061 | for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) { |
1062 | data->fan_div[chan] = | |
1063 | adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan)); | |
1064 | data->fan_min[chan] = | |
1065 | adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan)); | |
1066 | data->fan[chan] = | |
1067 | adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan)); | |
1068 | data->pwm[chan] = | |
6d6006b8 | 1069 | 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >> |
1da177e4 LT |
1070 | (4*chan)); |
1071 | } | |
1072 | data->last_updated = jiffies; | |
1073 | data->valid = 1; | |
1074 | } | |
1075 | ||
9a61bf63 | 1076 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1077 | |
1078 | return data; | |
1079 | } | |
1080 | ||
1081 | static int __init sensors_adm1031_init(void) | |
1082 | { | |
1083 | return i2c_add_driver(&adm1031_driver); | |
1084 | } | |
1085 | ||
1086 | static void __exit sensors_adm1031_exit(void) | |
1087 | { | |
1088 | i2c_del_driver(&adm1031_driver); | |
1089 | } | |
1090 | ||
1091 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
1092 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
1093 | MODULE_LICENSE("GPL"); | |
1094 | ||
1095 | module_init(sensors_adm1031_init); | |
1096 | module_exit(sensors_adm1031_exit); |