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)) | |
39 | ||
49dc9efe | 40 | #define ADM1031_REG_TEMP_OFFSET(nr) (0x0d + (nr)) |
6d6006b8 JD |
41 | #define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr)) |
42 | #define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr)) | |
43 | #define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr)) | |
1da177e4 | 44 | |
6d6006b8 | 45 | #define ADM1031_REG_TEMP(nr) (0x0a + (nr)) |
1da177e4 LT |
46 | #define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr)) |
47 | ||
48 | #define ADM1031_REG_STATUS(nr) (0x2 + (nr)) | |
49 | ||
6d6006b8 JD |
50 | #define ADM1031_REG_CONF1 0x00 |
51 | #define ADM1031_REG_CONF2 0x01 | |
52 | #define ADM1031_REG_EXT_TEMP 0x06 | |
1da177e4 LT |
53 | |
54 | #define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */ | |
55 | #define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */ | |
56 | #define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */ | |
57 | ||
58 | #define ADM1031_CONF2_PWM1_ENABLE 0x01 | |
59 | #define ADM1031_CONF2_PWM2_ENABLE 0x02 | |
60 | #define ADM1031_CONF2_TACH1_ENABLE 0x04 | |
61 | #define ADM1031_CONF2_TACH2_ENABLE 0x08 | |
62 | #define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan)) | |
63 | ||
64 | /* Addresses to scan */ | |
25e9c86d | 65 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 | 66 | |
e5e9f44c | 67 | enum chips { adm1030, adm1031 }; |
1da177e4 LT |
68 | |
69 | typedef u8 auto_chan_table_t[8][2]; | |
70 | ||
71 | /* Each client has this additional data */ | |
72 | struct adm1031_data { | |
1beeffe4 | 73 | struct device *hwmon_dev; |
9a61bf63 | 74 | struct mutex update_lock; |
1da177e4 LT |
75 | int chip_type; |
76 | char valid; /* !=0 if following fields are valid */ | |
77 | unsigned long last_updated; /* In jiffies */ | |
78 | /* The chan_select_table contains the possible configurations for | |
79 | * auto fan control. | |
80 | */ | |
6d6006b8 | 81 | const auto_chan_table_t *chan_select_table; |
1da177e4 LT |
82 | u16 alarm; |
83 | u8 conf1; | |
84 | u8 conf2; | |
85 | u8 fan[2]; | |
86 | u8 fan_div[2]; | |
87 | u8 fan_min[2]; | |
88 | u8 pwm[2]; | |
89 | u8 old_pwm[2]; | |
90 | s8 temp[3]; | |
91 | u8 ext_temp[3]; | |
92 | u8 auto_temp[3]; | |
93 | u8 auto_temp_min[3]; | |
94 | u8 auto_temp_off[3]; | |
95 | u8 auto_temp_max[3]; | |
49dc9efe | 96 | s8 temp_offset[3]; |
1da177e4 LT |
97 | s8 temp_min[3]; |
98 | s8 temp_max[3]; | |
99 | s8 temp_crit[3]; | |
100 | }; | |
101 | ||
af200f88 JD |
102 | static int adm1031_probe(struct i2c_client *client, |
103 | const struct i2c_device_id *id); | |
310ec792 | 104 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 105 | struct i2c_board_info *info); |
1da177e4 | 106 | static void adm1031_init_client(struct i2c_client *client); |
af200f88 | 107 | static int adm1031_remove(struct i2c_client *client); |
1da177e4 LT |
108 | static struct adm1031_data *adm1031_update_device(struct device *dev); |
109 | ||
af200f88 JD |
110 | static const struct i2c_device_id adm1031_id[] = { |
111 | { "adm1030", adm1030 }, | |
112 | { "adm1031", adm1031 }, | |
113 | { } | |
114 | }; | |
115 | MODULE_DEVICE_TABLE(i2c, adm1031_id); | |
116 | ||
1da177e4 LT |
117 | /* This is the driver that will be inserted */ |
118 | static struct i2c_driver adm1031_driver = { | |
af200f88 | 119 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 120 | .driver = { |
cdaf7934 LR |
121 | .name = "adm1031", |
122 | }, | |
af200f88 JD |
123 | .probe = adm1031_probe, |
124 | .remove = adm1031_remove, | |
125 | .id_table = adm1031_id, | |
126 | .detect = adm1031_detect, | |
c3813d6a | 127 | .address_list = normal_i2c, |
1da177e4 LT |
128 | }; |
129 | ||
130 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) | |
131 | { | |
132 | return i2c_smbus_read_byte_data(client, reg); | |
133 | } | |
134 | ||
135 | static inline int | |
136 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
137 | { | |
138 | return i2c_smbus_write_byte_data(client, reg, value); | |
139 | } | |
140 | ||
141 | ||
142 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
143 | ((val + 500) / 1000))) | |
144 | ||
145 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
146 | ||
147 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
148 | ||
49dc9efe IS |
149 | #define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f) |
150 | #define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \ | |
151 | (val) | 0x70 : (val)) | |
152 | ||
1da177e4 LT |
153 | #define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0) |
154 | ||
155 | static int FAN_TO_REG(int reg, int div) | |
156 | { | |
157 | int tmp; | |
158 | tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div); | |
159 | return tmp > 255 ? 255 : tmp; | |
160 | } | |
161 | ||
162 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
163 | ||
164 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4) | |
165 | #define PWM_FROM_REG(val) ((val) << 4) | |
166 | ||
167 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
168 | #define FAN_CHAN_TO_REG(val, reg) \ | |
169 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
170 | ||
171 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
172 | ((((val)/500) & 0xf8)|((reg) & 0x7)) | |
173 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7))) | |
174 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) | |
175 | ||
176 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
177 | ||
178 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
179 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
180 | ||
181 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
182 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
183 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
184 | ||
185 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
186 | { | |
187 | int ret; | |
188 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
189 | ||
190 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
191 | ret = ((reg & 0xf8) | | |
192 | (range < 10000 ? 0 : | |
193 | range < 20000 ? 1 : | |
194 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
195 | return ret; | |
196 | } | |
197 | ||
198 | /* FAN auto control */ | |
199 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
200 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2] | |
201 | ||
6d6006b8 | 202 | /* The tables below contains the possible values for the auto fan |
1da177e4 LT |
203 | * control bitfields. the index in the table is the register value. |
204 | * MSb is the auto fan control enable bit, so the four first entries | |
205 | * in the table disables auto fan control when both bitfields are zero. | |
206 | */ | |
6d6006b8 JD |
207 | static const auto_chan_table_t auto_channel_select_table_adm1031 = { |
208 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
209 | { 2 /* 0b010 */ , 4 /* 0b100 */ }, | |
210 | { 2 /* 0b010 */ , 2 /* 0b010 */ }, | |
211 | { 4 /* 0b100 */ , 4 /* 0b100 */ }, | |
212 | { 7 /* 0b111 */ , 7 /* 0b111 */ }, | |
1da177e4 LT |
213 | }; |
214 | ||
6d6006b8 JD |
215 | static const auto_chan_table_t auto_channel_select_table_adm1030 = { |
216 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
217 | { 2 /* 0b10 */ , 0 }, | |
218 | { 0xff /* invalid */ , 0 }, | |
219 | { 0xff /* invalid */ , 0 }, | |
220 | { 3 /* 0b11 */ , 0 }, | |
1da177e4 LT |
221 | }; |
222 | ||
223 | /* That function checks if a bitfield is valid and returns the other bitfield | |
224 | * nearest match if no exact match where found. | |
225 | */ | |
226 | static int | |
227 | get_fan_auto_nearest(struct adm1031_data *data, | |
228 | int chan, u8 val, u8 reg, u8 * new_reg) | |
229 | { | |
230 | int i; | |
231 | int first_match = -1, exact_match = -1; | |
232 | u8 other_reg_val = | |
233 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
234 | ||
235 | if (val == 0) { | |
236 | *new_reg = 0; | |
237 | return 0; | |
238 | } | |
239 | ||
240 | for (i = 0; i < 8; i++) { | |
241 | if ((val == (*data->chan_select_table)[i][chan]) && | |
242 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
243 | other_reg_val)) { | |
244 | /* We found an exact match */ | |
245 | exact_match = i; | |
246 | break; | |
247 | } else if (val == (*data->chan_select_table)[i][chan] && | |
248 | first_match == -1) { | |
6d6006b8 JD |
249 | /* Save the first match in case of an exact match has |
250 | * not been found | |
1da177e4 LT |
251 | */ |
252 | first_match = i; | |
253 | } | |
254 | } | |
255 | ||
256 | if (exact_match >= 0) { | |
257 | *new_reg = exact_match; | |
258 | } else if (first_match >= 0) { | |
259 | *new_reg = first_match; | |
260 | } else { | |
261 | return -EINVAL; | |
262 | } | |
263 | return 0; | |
264 | } | |
265 | ||
c801082d JD |
266 | static ssize_t show_fan_auto_channel(struct device *dev, |
267 | struct device_attribute *attr, char *buf) | |
1da177e4 | 268 | { |
c801082d | 269 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
270 | struct adm1031_data *data = adm1031_update_device(dev); |
271 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
272 | } | |
273 | ||
274 | static ssize_t | |
c801082d JD |
275 | set_fan_auto_channel(struct device *dev, struct device_attribute *attr, |
276 | const char *buf, size_t count) | |
1da177e4 LT |
277 | { |
278 | struct i2c_client *client = to_i2c_client(dev); | |
279 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 280 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
281 | int val = simple_strtol(buf, NULL, 10); |
282 | u8 reg; | |
283 | int ret; | |
284 | u8 old_fan_mode; | |
285 | ||
286 | old_fan_mode = data->conf1; | |
287 | ||
9a61bf63 | 288 | mutex_lock(&data->update_lock); |
6d6006b8 | 289 | |
1da177e4 | 290 | if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) { |
9a61bf63 | 291 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
292 | return ret; |
293 | } | |
6d6006b8 JD |
294 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); |
295 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^ | |
1da177e4 LT |
296 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { |
297 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE){ | |
6d6006b8 JD |
298 | /* Switch to Auto Fan Mode |
299 | * Save PWM registers | |
1da177e4 LT |
300 | * Set PWM registers to 33% Both */ |
301 | data->old_pwm[0] = data->pwm[0]; | |
302 | data->old_pwm[1] = data->pwm[1]; | |
303 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
304 | } else { | |
305 | /* Switch to Manual Mode */ | |
306 | data->pwm[0] = data->old_pwm[0]; | |
307 | data->pwm[1] = data->old_pwm[1]; | |
308 | /* Restore PWM registers */ | |
6d6006b8 | 309 | adm1031_write_value(client, ADM1031_REG_PWM, |
1da177e4 LT |
310 | data->pwm[0] | (data->pwm[1] << 4)); |
311 | } | |
312 | } | |
313 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
314 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
9a61bf63 | 315 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
316 | return count; |
317 | } | |
318 | ||
c801082d JD |
319 | static SENSOR_DEVICE_ATTR(auto_fan1_channel, S_IRUGO | S_IWUSR, |
320 | show_fan_auto_channel, set_fan_auto_channel, 0); | |
321 | static SENSOR_DEVICE_ATTR(auto_fan2_channel, S_IRUGO | S_IWUSR, | |
322 | show_fan_auto_channel, set_fan_auto_channel, 1); | |
1da177e4 LT |
323 | |
324 | /* Auto Temps */ | |
c801082d JD |
325 | static ssize_t show_auto_temp_off(struct device *dev, |
326 | struct device_attribute *attr, char *buf) | |
1da177e4 | 327 | { |
c801082d | 328 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 329 | struct adm1031_data *data = adm1031_update_device(dev); |
6d6006b8 | 330 | return sprintf(buf, "%d\n", |
1da177e4 LT |
331 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); |
332 | } | |
c801082d JD |
333 | static ssize_t show_auto_temp_min(struct device *dev, |
334 | struct device_attribute *attr, char *buf) | |
1da177e4 | 335 | { |
c801082d | 336 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
337 | struct adm1031_data *data = adm1031_update_device(dev); |
338 | return sprintf(buf, "%d\n", | |
339 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
340 | } | |
341 | static ssize_t | |
c801082d JD |
342 | set_auto_temp_min(struct device *dev, struct device_attribute *attr, |
343 | const char *buf, size_t count) | |
1da177e4 LT |
344 | { |
345 | struct i2c_client *client = to_i2c_client(dev); | |
346 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 347 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
348 | int val = simple_strtol(buf, NULL, 10); |
349 | ||
9a61bf63 | 350 | mutex_lock(&data->update_lock); |
1da177e4 LT |
351 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); |
352 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
353 | data->auto_temp[nr]); | |
9a61bf63 | 354 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
355 | return count; |
356 | } | |
c801082d JD |
357 | static ssize_t show_auto_temp_max(struct device *dev, |
358 | struct device_attribute *attr, char *buf) | |
1da177e4 | 359 | { |
c801082d | 360 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
361 | struct adm1031_data *data = adm1031_update_device(dev); |
362 | return sprintf(buf, "%d\n", | |
363 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
364 | } | |
365 | static ssize_t | |
c801082d JD |
366 | set_auto_temp_max(struct device *dev, struct device_attribute *attr, |
367 | const char *buf, size_t count) | |
1da177e4 LT |
368 | { |
369 | struct i2c_client *client = to_i2c_client(dev); | |
370 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 371 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
372 | int val = simple_strtol(buf, NULL, 10); |
373 | ||
9a61bf63 | 374 | mutex_lock(&data->update_lock); |
1da177e4 LT |
375 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]); |
376 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
377 | data->temp_max[nr]); | |
9a61bf63 | 378 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
379 | return count; |
380 | } | |
381 | ||
c801082d JD |
382 | #define auto_temp_reg(offset) \ |
383 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \ | |
384 | show_auto_temp_off, NULL, offset - 1); \ | |
385 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
386 | show_auto_temp_min, set_auto_temp_min, offset - 1); \ | |
387 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
388 | show_auto_temp_max, set_auto_temp_max, offset - 1) | |
1da177e4 LT |
389 | |
390 | auto_temp_reg(1); | |
391 | auto_temp_reg(2); | |
392 | auto_temp_reg(3); | |
393 | ||
394 | /* pwm */ | |
c801082d JD |
395 | static ssize_t show_pwm(struct device *dev, |
396 | struct device_attribute *attr, char *buf) | |
1da177e4 | 397 | { |
c801082d | 398 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
399 | struct adm1031_data *data = adm1031_update_device(dev); |
400 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
401 | } | |
c801082d JD |
402 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
403 | const char *buf, size_t count) | |
1da177e4 LT |
404 | { |
405 | struct i2c_client *client = to_i2c_client(dev); | |
406 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 407 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
408 | int val = simple_strtol(buf, NULL, 10); |
409 | int reg; | |
410 | ||
9a61bf63 | 411 | mutex_lock(&data->update_lock); |
6d6006b8 | 412 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && |
1da177e4 LT |
413 | (((val>>4) & 0xf) != 5)) { |
414 | /* In automatic mode, the only PWM accepted is 33% */ | |
9a61bf63 | 415 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
416 | return -EINVAL; |
417 | } | |
418 | data->pwm[nr] = PWM_TO_REG(val); | |
419 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
420 | adm1031_write_value(client, ADM1031_REG_PWM, | |
421 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
422 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
9a61bf63 | 423 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
424 | return count; |
425 | } | |
426 | ||
c801082d JD |
427 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); |
428 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); | |
429 | static SENSOR_DEVICE_ATTR(auto_fan1_min_pwm, S_IRUGO | S_IWUSR, | |
430 | show_pwm, set_pwm, 0); | |
431 | static SENSOR_DEVICE_ATTR(auto_fan2_min_pwm, S_IRUGO | S_IWUSR, | |
432 | show_pwm, set_pwm, 1); | |
1da177e4 LT |
433 | |
434 | /* Fans */ | |
435 | ||
436 | /* | |
437 | * That function checks the cases where the fan reading is not | |
44bbe87e | 438 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
439 | * not supposed to run |
440 | */ | |
441 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
442 | { | |
443 | int res = 0; | |
444 | ||
445 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
446 | switch (data->conf1 & 0x60) { | |
447 | case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */ | |
448 | res = data->temp[chan+1] >= | |
449 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); | |
450 | break; | |
451 | case 0x20: /* remote temp1 controls both fans */ | |
452 | res = | |
453 | data->temp[1] >= | |
454 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
455 | break; | |
456 | case 0x40: /* remote temp2 controls both fans */ | |
457 | res = | |
458 | data->temp[2] >= | |
459 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
460 | break; | |
461 | case 0x60: /* max controls both fans */ | |
462 | res = | |
463 | data->temp[0] >= | |
464 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
465 | || data->temp[1] >= | |
466 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
6d6006b8 | 467 | || (data->chip_type == adm1031 |
1da177e4 LT |
468 | && data->temp[2] >= |
469 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
470 | break; | |
471 | } | |
472 | } else { | |
473 | res = data->pwm[chan] > 0; | |
474 | } | |
475 | return res; | |
476 | } | |
477 | ||
478 | ||
c801082d JD |
479 | static ssize_t show_fan(struct device *dev, |
480 | struct device_attribute *attr, char *buf) | |
1da177e4 | 481 | { |
c801082d | 482 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
483 | struct adm1031_data *data = adm1031_update_device(dev); |
484 | int value; | |
485 | ||
486 | value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr], | |
487 | FAN_DIV_FROM_REG(data->fan_div[nr])) : 0; | |
488 | return sprintf(buf, "%d\n", value); | |
489 | } | |
490 | ||
c801082d JD |
491 | static ssize_t show_fan_div(struct device *dev, |
492 | struct device_attribute *attr, char *buf) | |
1da177e4 | 493 | { |
c801082d | 494 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
495 | struct adm1031_data *data = adm1031_update_device(dev); |
496 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
497 | } | |
c801082d JD |
498 | static ssize_t show_fan_min(struct device *dev, |
499 | struct device_attribute *attr, char *buf) | |
1da177e4 | 500 | { |
c801082d | 501 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
502 | struct adm1031_data *data = adm1031_update_device(dev); |
503 | return sprintf(buf, "%d\n", | |
504 | FAN_FROM_REG(data->fan_min[nr], | |
505 | FAN_DIV_FROM_REG(data->fan_div[nr]))); | |
506 | } | |
c801082d JD |
507 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
508 | const char *buf, size_t count) | |
1da177e4 LT |
509 | { |
510 | struct i2c_client *client = to_i2c_client(dev); | |
511 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 512 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
513 | int val = simple_strtol(buf, NULL, 10); |
514 | ||
9a61bf63 | 515 | mutex_lock(&data->update_lock); |
1da177e4 | 516 | if (val) { |
6d6006b8 | 517 | data->fan_min[nr] = |
1da177e4 LT |
518 | FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr])); |
519 | } else { | |
520 | data->fan_min[nr] = 0xff; | |
521 | } | |
522 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 523 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
524 | return count; |
525 | } | |
c801082d JD |
526 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
527 | const char *buf, size_t count) | |
1da177e4 LT |
528 | { |
529 | struct i2c_client *client = to_i2c_client(dev); | |
530 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 531 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
532 | int val = simple_strtol(buf, NULL, 10); |
533 | u8 tmp; | |
534 | int old_div; | |
535 | int new_min; | |
536 | ||
537 | tmp = val == 8 ? 0xc0 : | |
538 | val == 4 ? 0x80 : | |
6d6006b8 JD |
539 | val == 2 ? 0x40 : |
540 | val == 1 ? 0x00 : | |
1da177e4 LT |
541 | 0xff; |
542 | if (tmp == 0xff) | |
543 | return -EINVAL; | |
6d6006b8 | 544 | |
9a61bf63 | 545 | mutex_lock(&data->update_lock); |
38a1f0e9 JD |
546 | /* Get fresh readings */ |
547 | data->fan_div[nr] = adm1031_read_value(client, | |
548 | ADM1031_REG_FAN_DIV(nr)); | |
549 | data->fan_min[nr] = adm1031_read_value(client, | |
550 | ADM1031_REG_FAN_MIN(nr)); | |
551 | ||
552 | /* Write the new clock divider and fan min */ | |
1da177e4 | 553 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); |
6d6006b8 JD |
554 | data->fan_div[nr] = tmp | (0x3f & data->fan_div[nr]); |
555 | new_min = data->fan_min[nr] * old_div / val; | |
1da177e4 | 556 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; |
1da177e4 | 557 | |
6d6006b8 | 558 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), |
1da177e4 | 559 | data->fan_div[nr]); |
6d6006b8 | 560 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), |
1da177e4 | 561 | data->fan_min[nr]); |
38a1f0e9 JD |
562 | |
563 | /* Invalidate the cache: fan speed is no longer valid */ | |
564 | data->valid = 0; | |
9a61bf63 | 565 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
566 | return count; |
567 | } | |
568 | ||
569 | #define fan_offset(offset) \ | |
c801082d JD |
570 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
571 | show_fan, NULL, offset - 1); \ | |
572 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
573 | show_fan_min, set_fan_min, offset - 1); \ | |
574 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
575 | show_fan_div, set_fan_div, offset - 1) | |
1da177e4 LT |
576 | |
577 | fan_offset(1); | |
578 | fan_offset(2); | |
579 | ||
580 | ||
581 | /* Temps */ | |
c801082d JD |
582 | static ssize_t show_temp(struct device *dev, |
583 | struct device_attribute *attr, char *buf) | |
1da177e4 | 584 | { |
c801082d | 585 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
586 | struct adm1031_data *data = adm1031_update_device(dev); |
587 | int ext; | |
588 | ext = nr == 0 ? | |
589 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
590 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
591 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
592 | } | |
49dc9efe IS |
593 | static ssize_t show_temp_offset(struct device *dev, |
594 | struct device_attribute *attr, char *buf) | |
595 | { | |
596 | int nr = to_sensor_dev_attr(attr)->index; | |
597 | struct adm1031_data *data = adm1031_update_device(dev); | |
598 | return sprintf(buf, "%d\n", | |
599 | TEMP_OFFSET_FROM_REG(data->temp_offset[nr])); | |
600 | } | |
c801082d JD |
601 | static ssize_t show_temp_min(struct device *dev, |
602 | struct device_attribute *attr, char *buf) | |
1da177e4 | 603 | { |
c801082d | 604 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
605 | struct adm1031_data *data = adm1031_update_device(dev); |
606 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
607 | } | |
c801082d JD |
608 | static ssize_t show_temp_max(struct device *dev, |
609 | struct device_attribute *attr, char *buf) | |
1da177e4 | 610 | { |
c801082d | 611 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
612 | struct adm1031_data *data = adm1031_update_device(dev); |
613 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
614 | } | |
c801082d JD |
615 | static ssize_t show_temp_crit(struct device *dev, |
616 | struct device_attribute *attr, char *buf) | |
1da177e4 | 617 | { |
c801082d | 618 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
619 | struct adm1031_data *data = adm1031_update_device(dev); |
620 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
621 | } | |
49dc9efe IS |
622 | static ssize_t set_temp_offset(struct device *dev, |
623 | struct device_attribute *attr, const char *buf, | |
624 | size_t count) | |
625 | { | |
626 | struct i2c_client *client = to_i2c_client(dev); | |
627 | struct adm1031_data *data = i2c_get_clientdata(client); | |
628 | int nr = to_sensor_dev_attr(attr)->index; | |
629 | int val; | |
630 | ||
631 | val = simple_strtol(buf, NULL, 10); | |
632 | val = SENSORS_LIMIT(val, -15000, 15000); | |
633 | mutex_lock(&data->update_lock); | |
634 | data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val); | |
635 | adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr), | |
636 | data->temp_offset[nr]); | |
637 | mutex_unlock(&data->update_lock); | |
638 | return count; | |
639 | } | |
c801082d JD |
640 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
641 | const char *buf, size_t count) | |
1da177e4 LT |
642 | { |
643 | struct i2c_client *client = to_i2c_client(dev); | |
644 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 645 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
646 | int val; |
647 | ||
648 | val = simple_strtol(buf, NULL, 10); | |
649 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 650 | mutex_lock(&data->update_lock); |
1da177e4 LT |
651 | data->temp_min[nr] = TEMP_TO_REG(val); |
652 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
653 | data->temp_min[nr]); | |
9a61bf63 | 654 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
655 | return count; |
656 | } | |
c801082d JD |
657 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
658 | const char *buf, size_t count) | |
1da177e4 LT |
659 | { |
660 | struct i2c_client *client = to_i2c_client(dev); | |
661 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 662 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
663 | int val; |
664 | ||
665 | val = simple_strtol(buf, NULL, 10); | |
666 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 667 | mutex_lock(&data->update_lock); |
1da177e4 LT |
668 | data->temp_max[nr] = TEMP_TO_REG(val); |
669 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
670 | data->temp_max[nr]); | |
9a61bf63 | 671 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
672 | return count; |
673 | } | |
c801082d JD |
674 | static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, |
675 | const char *buf, size_t count) | |
1da177e4 LT |
676 | { |
677 | struct i2c_client *client = to_i2c_client(dev); | |
678 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 679 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
680 | int val; |
681 | ||
682 | val = simple_strtol(buf, NULL, 10); | |
683 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 684 | mutex_lock(&data->update_lock); |
1da177e4 LT |
685 | data->temp_crit[nr] = TEMP_TO_REG(val); |
686 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
687 | data->temp_crit[nr]); | |
9a61bf63 | 688 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
689 | return count; |
690 | } | |
691 | ||
c801082d JD |
692 | #define temp_reg(offset) \ |
693 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ | |
694 | show_temp, NULL, offset - 1); \ | |
49dc9efe IS |
695 | static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \ |
696 | show_temp_offset, set_temp_offset, offset - 1); \ | |
c801082d JD |
697 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ |
698 | show_temp_min, set_temp_min, offset - 1); \ | |
699 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
700 | show_temp_max, set_temp_max, offset - 1); \ | |
701 | static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ | |
702 | show_temp_crit, set_temp_crit, offset - 1) | |
1da177e4 LT |
703 | |
704 | temp_reg(1); | |
705 | temp_reg(2); | |
706 | temp_reg(3); | |
707 | ||
708 | /* Alarms */ | |
30f74292 | 709 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
710 | { |
711 | struct adm1031_data *data = adm1031_update_device(dev); | |
712 | return sprintf(buf, "%d\n", data->alarm); | |
713 | } | |
714 | ||
715 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
716 | ||
050ab878 JD |
717 | static ssize_t show_alarm(struct device *dev, |
718 | struct device_attribute *attr, char *buf) | |
719 | { | |
720 | int bitnr = to_sensor_dev_attr(attr)->index; | |
721 | struct adm1031_data *data = adm1031_update_device(dev); | |
722 | return sprintf(buf, "%d\n", (data->alarm >> bitnr) & 1); | |
723 | } | |
724 | ||
725 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
726 | static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_alarm, NULL, 1); | |
727 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 2); | |
728 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); | |
729 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 4); | |
730 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 5); | |
731 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); | |
732 | static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 7); | |
733 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 8); | |
734 | static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_alarm, NULL, 9); | |
735 | static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 10); | |
736 | static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11); | |
737 | static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12); | |
738 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13); | |
739 | static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1da177e4 | 740 | |
681c6f7a | 741 | static struct attribute *adm1031_attributes[] = { |
c801082d JD |
742 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
743 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
744 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
050ab878 JD |
745 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
746 | &sensor_dev_attr_fan1_fault.dev_attr.attr, | |
c801082d JD |
747 | &sensor_dev_attr_pwm1.dev_attr.attr, |
748 | &sensor_dev_attr_auto_fan1_channel.dev_attr.attr, | |
749 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
49dc9efe | 750 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
c801082d | 751 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
050ab878 | 752 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, |
c801082d | 753 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
050ab878 | 754 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
c801082d | 755 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
050ab878 | 756 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, |
c801082d | 757 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
49dc9efe | 758 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
c801082d | 759 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
050ab878 | 760 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
c801082d | 761 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
050ab878 | 762 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, |
c801082d | 763 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
050ab878 JD |
764 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, |
765 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
c801082d JD |
766 | |
767 | &sensor_dev_attr_auto_temp1_off.dev_attr.attr, | |
768 | &sensor_dev_attr_auto_temp1_min.dev_attr.attr, | |
769 | &sensor_dev_attr_auto_temp1_max.dev_attr.attr, | |
770 | ||
771 | &sensor_dev_attr_auto_temp2_off.dev_attr.attr, | |
772 | &sensor_dev_attr_auto_temp2_min.dev_attr.attr, | |
773 | &sensor_dev_attr_auto_temp2_max.dev_attr.attr, | |
774 | ||
775 | &sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr, | |
681c6f7a MH |
776 | |
777 | &dev_attr_alarms.attr, | |
778 | ||
779 | NULL | |
780 | }; | |
781 | ||
782 | static const struct attribute_group adm1031_group = { | |
783 | .attrs = adm1031_attributes, | |
784 | }; | |
785 | ||
786 | static struct attribute *adm1031_attributes_opt[] = { | |
c801082d JD |
787 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
788 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
789 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
050ab878 JD |
790 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
791 | &sensor_dev_attr_fan2_fault.dev_attr.attr, | |
c801082d JD |
792 | &sensor_dev_attr_pwm2.dev_attr.attr, |
793 | &sensor_dev_attr_auto_fan2_channel.dev_attr.attr, | |
794 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
49dc9efe | 795 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
c801082d | 796 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
050ab878 | 797 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, |
c801082d | 798 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
050ab878 | 799 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, |
c801082d | 800 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
050ab878 JD |
801 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, |
802 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
c801082d JD |
803 | &sensor_dev_attr_auto_temp3_off.dev_attr.attr, |
804 | &sensor_dev_attr_auto_temp3_min.dev_attr.attr, | |
805 | &sensor_dev_attr_auto_temp3_max.dev_attr.attr, | |
806 | &sensor_dev_attr_auto_fan2_min_pwm.dev_attr.attr, | |
681c6f7a MH |
807 | NULL |
808 | }; | |
809 | ||
810 | static const struct attribute_group adm1031_group_opt = { | |
811 | .attrs = adm1031_attributes_opt, | |
812 | }; | |
813 | ||
af200f88 | 814 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 815 | static int adm1031_detect(struct i2c_client *client, |
af200f88 | 816 | struct i2c_board_info *info) |
1da177e4 | 817 | { |
af200f88 | 818 | struct i2c_adapter *adapter = client->adapter; |
52df6440 JD |
819 | const char *name; |
820 | int id, co; | |
1da177e4 LT |
821 | |
822 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
af200f88 | 823 | return -ENODEV; |
1da177e4 | 824 | |
52df6440 JD |
825 | id = i2c_smbus_read_byte_data(client, 0x3d); |
826 | co = i2c_smbus_read_byte_data(client, 0x3e); | |
1da177e4 | 827 | |
52df6440 JD |
828 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) |
829 | return -ENODEV; | |
830 | name = (id == 0x30) ? "adm1030" : "adm1031"; | |
1da177e4 | 831 | |
af200f88 | 832 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1da177e4 | 833 | |
af200f88 JD |
834 | return 0; |
835 | } | |
836 | ||
837 | static int adm1031_probe(struct i2c_client *client, | |
838 | const struct i2c_device_id *id) | |
839 | { | |
840 | struct adm1031_data *data; | |
841 | int err; | |
842 | ||
843 | data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL); | |
844 | if (!data) { | |
845 | err = -ENOMEM; | |
846 | goto exit; | |
847 | } | |
848 | ||
849 | i2c_set_clientdata(client, data); | |
850 | data->chip_type = id->driver_data; | |
9a61bf63 | 851 | mutex_init(&data->update_lock); |
1da177e4 | 852 | |
af200f88 JD |
853 | if (data->chip_type == adm1030) |
854 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
855 | else | |
856 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
1da177e4 LT |
857 | |
858 | /* Initialize the ADM1031 chip */ | |
6d6006b8 | 859 | adm1031_init_client(client); |
1da177e4 LT |
860 | |
861 | /* Register sysfs hooks */ | |
6d6006b8 | 862 | if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group))) |
af200f88 | 863 | goto exit_free; |
1da177e4 | 864 | |
af200f88 | 865 | if (data->chip_type == adm1031) { |
6d6006b8 | 866 | if ((err = sysfs_create_group(&client->dev.kobj, |
681c6f7a MH |
867 | &adm1031_group_opt))) |
868 | goto exit_remove; | |
869 | } | |
870 | ||
6d6006b8 | 871 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
872 | if (IS_ERR(data->hwmon_dev)) { |
873 | err = PTR_ERR(data->hwmon_dev); | |
681c6f7a | 874 | goto exit_remove; |
1da177e4 LT |
875 | } |
876 | ||
877 | return 0; | |
878 | ||
681c6f7a | 879 | exit_remove: |
6d6006b8 JD |
880 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
881 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
1da177e4 | 882 | exit_free: |
1f57ff89 | 883 | kfree(data); |
1da177e4 LT |
884 | exit: |
885 | return err; | |
886 | } | |
887 | ||
af200f88 | 888 | static int adm1031_remove(struct i2c_client *client) |
1da177e4 | 889 | { |
943b0830 | 890 | struct adm1031_data *data = i2c_get_clientdata(client); |
943b0830 | 891 | |
1beeffe4 | 892 | hwmon_device_unregister(data->hwmon_dev); |
681c6f7a MH |
893 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
894 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
943b0830 | 895 | kfree(data); |
1da177e4 LT |
896 | return 0; |
897 | } | |
898 | ||
899 | static void adm1031_init_client(struct i2c_client *client) | |
900 | { | |
901 | unsigned int read_val; | |
902 | unsigned int mask; | |
903 | struct adm1031_data *data = i2c_get_clientdata(client); | |
904 | ||
905 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
906 | if (data->chip_type == adm1031) { | |
907 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
908 | ADM1031_CONF2_TACH2_ENABLE); | |
6d6006b8 | 909 | } |
1da177e4 LT |
910 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ |
911 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
912 | if ((read_val | mask) != read_val) { | |
913 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
914 | } | |
915 | ||
916 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
917 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
918 | adm1031_write_value(client, ADM1031_REG_CONF1, read_val | | |
919 | ADM1031_CONF1_MONITOR_ENABLE); | |
920 | } | |
921 | ||
922 | } | |
923 | ||
924 | static struct adm1031_data *adm1031_update_device(struct device *dev) | |
925 | { | |
926 | struct i2c_client *client = to_i2c_client(dev); | |
927 | struct adm1031_data *data = i2c_get_clientdata(client); | |
928 | int chan; | |
929 | ||
9a61bf63 | 930 | mutex_lock(&data->update_lock); |
1da177e4 LT |
931 | |
932 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
933 | || !data->valid) { | |
934 | ||
935 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
936 | for (chan = 0; | |
937 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
938 | u8 oldh, newh; | |
939 | ||
940 | oldh = | |
941 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
942 | data->ext_temp[chan] = | |
943 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
944 | newh = | |
945 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
946 | if (newh != oldh) { | |
947 | data->ext_temp[chan] = | |
948 | adm1031_read_value(client, | |
949 | ADM1031_REG_EXT_TEMP); | |
950 | #ifdef DEBUG | |
951 | oldh = | |
952 | adm1031_read_value(client, | |
953 | ADM1031_REG_TEMP(chan)); | |
954 | ||
955 | /* oldh is actually newer */ | |
956 | if (newh != oldh) | |
957 | dev_warn(&client->dev, | |
958 | "Remote temperature may be " | |
959 | "wrong.\n"); | |
960 | #endif | |
961 | } | |
962 | data->temp[chan] = newh; | |
963 | ||
49dc9efe IS |
964 | data->temp_offset[chan] = |
965 | adm1031_read_value(client, | |
966 | ADM1031_REG_TEMP_OFFSET(chan)); | |
1da177e4 LT |
967 | data->temp_min[chan] = |
968 | adm1031_read_value(client, | |
969 | ADM1031_REG_TEMP_MIN(chan)); | |
970 | data->temp_max[chan] = | |
971 | adm1031_read_value(client, | |
972 | ADM1031_REG_TEMP_MAX(chan)); | |
973 | data->temp_crit[chan] = | |
974 | adm1031_read_value(client, | |
975 | ADM1031_REG_TEMP_CRIT(chan)); | |
976 | data->auto_temp[chan] = | |
977 | adm1031_read_value(client, | |
978 | ADM1031_REG_AUTO_TEMP(chan)); | |
979 | ||
980 | } | |
981 | ||
982 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
983 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
984 | ||
985 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
986 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) | |
987 | << 8); | |
988 | if (data->chip_type == adm1030) { | |
989 | data->alarm &= 0xc0ff; | |
990 | } | |
6d6006b8 | 991 | |
1da177e4 LT |
992 | for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) { |
993 | data->fan_div[chan] = | |
994 | adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan)); | |
995 | data->fan_min[chan] = | |
996 | adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan)); | |
997 | data->fan[chan] = | |
998 | adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan)); | |
999 | data->pwm[chan] = | |
6d6006b8 | 1000 | 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >> |
1da177e4 LT |
1001 | (4*chan)); |
1002 | } | |
1003 | data->last_updated = jiffies; | |
1004 | data->valid = 1; | |
1005 | } | |
1006 | ||
9a61bf63 | 1007 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1008 | |
1009 | return data; | |
1010 | } | |
1011 | ||
1012 | static int __init sensors_adm1031_init(void) | |
1013 | { | |
1014 | return i2c_add_driver(&adm1031_driver); | |
1015 | } | |
1016 | ||
1017 | static void __exit sensors_adm1031_exit(void) | |
1018 | { | |
1019 | i2c_del_driver(&adm1031_driver); | |
1020 | } | |
1021 | ||
1022 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
1023 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
1024 | MODULE_LICENSE("GPL"); | |
1025 | ||
1026 | module_init(sensors_adm1031_init); | |
1027 | module_exit(sensors_adm1031_exit); |