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 | ||
6d6006b8 JD |
40 | #define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr)) |
41 | #define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr)) | |
42 | #define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr)) | |
1da177e4 | 43 | |
6d6006b8 | 44 | #define ADM1031_REG_TEMP(nr) (0x0a + (nr)) |
1da177e4 LT |
45 | #define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr)) |
46 | ||
47 | #define ADM1031_REG_STATUS(nr) (0x2 + (nr)) | |
48 | ||
6d6006b8 JD |
49 | #define ADM1031_REG_CONF1 0x00 |
50 | #define ADM1031_REG_CONF2 0x01 | |
51 | #define ADM1031_REG_EXT_TEMP 0x06 | |
1da177e4 LT |
52 | |
53 | #define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */ | |
54 | #define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */ | |
55 | #define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */ | |
56 | ||
57 | #define ADM1031_CONF2_PWM1_ENABLE 0x01 | |
58 | #define ADM1031_CONF2_PWM2_ENABLE 0x02 | |
59 | #define ADM1031_CONF2_TACH1_ENABLE 0x04 | |
60 | #define ADM1031_CONF2_TACH2_ENABLE 0x08 | |
61 | #define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan)) | |
62 | ||
63 | /* Addresses to scan */ | |
25e9c86d | 64 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1da177e4 LT |
65 | |
66 | /* Insmod parameters */ | |
f4b50261 | 67 | I2C_CLIENT_INSMOD_2(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]; | |
96 | s8 temp_min[3]; | |
97 | s8 temp_max[3]; | |
98 | s8 temp_crit[3]; | |
99 | }; | |
100 | ||
af200f88 JD |
101 | static int adm1031_probe(struct i2c_client *client, |
102 | const struct i2c_device_id *id); | |
103 | static int adm1031_detect(struct i2c_client *client, int kind, | |
104 | struct i2c_board_info *info); | |
1da177e4 | 105 | static void adm1031_init_client(struct i2c_client *client); |
af200f88 | 106 | static int adm1031_remove(struct i2c_client *client); |
1da177e4 LT |
107 | static struct adm1031_data *adm1031_update_device(struct device *dev); |
108 | ||
af200f88 JD |
109 | static const struct i2c_device_id adm1031_id[] = { |
110 | { "adm1030", adm1030 }, | |
111 | { "adm1031", adm1031 }, | |
112 | { } | |
113 | }; | |
114 | MODULE_DEVICE_TABLE(i2c, adm1031_id); | |
115 | ||
1da177e4 LT |
116 | /* This is the driver that will be inserted */ |
117 | static struct i2c_driver adm1031_driver = { | |
af200f88 | 118 | .class = I2C_CLASS_HWMON, |
cdaf7934 | 119 | .driver = { |
cdaf7934 LR |
120 | .name = "adm1031", |
121 | }, | |
af200f88 JD |
122 | .probe = adm1031_probe, |
123 | .remove = adm1031_remove, | |
124 | .id_table = adm1031_id, | |
125 | .detect = adm1031_detect, | |
126 | .address_data = &addr_data, | |
1da177e4 LT |
127 | }; |
128 | ||
129 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) | |
130 | { | |
131 | return i2c_smbus_read_byte_data(client, reg); | |
132 | } | |
133 | ||
134 | static inline int | |
135 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
136 | { | |
137 | return i2c_smbus_write_byte_data(client, reg, value); | |
138 | } | |
139 | ||
140 | ||
141 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
142 | ((val + 500) / 1000))) | |
143 | ||
144 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
145 | ||
146 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
147 | ||
148 | #define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0) | |
149 | ||
150 | static int FAN_TO_REG(int reg, int div) | |
151 | { | |
152 | int tmp; | |
153 | tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div); | |
154 | return tmp > 255 ? 255 : tmp; | |
155 | } | |
156 | ||
157 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
158 | ||
159 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4) | |
160 | #define PWM_FROM_REG(val) ((val) << 4) | |
161 | ||
162 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
163 | #define FAN_CHAN_TO_REG(val, reg) \ | |
164 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
165 | ||
166 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
167 | ((((val)/500) & 0xf8)|((reg) & 0x7)) | |
168 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7))) | |
169 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) | |
170 | ||
171 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
172 | ||
173 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
174 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
175 | ||
176 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
177 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
178 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
179 | ||
180 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
181 | { | |
182 | int ret; | |
183 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
184 | ||
185 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
186 | ret = ((reg & 0xf8) | | |
187 | (range < 10000 ? 0 : | |
188 | range < 20000 ? 1 : | |
189 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
190 | return ret; | |
191 | } | |
192 | ||
193 | /* FAN auto control */ | |
194 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
195 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2] | |
196 | ||
6d6006b8 | 197 | /* The tables below contains the possible values for the auto fan |
1da177e4 LT |
198 | * control bitfields. the index in the table is the register value. |
199 | * MSb is the auto fan control enable bit, so the four first entries | |
200 | * in the table disables auto fan control when both bitfields are zero. | |
201 | */ | |
6d6006b8 JD |
202 | static const auto_chan_table_t auto_channel_select_table_adm1031 = { |
203 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
204 | { 2 /* 0b010 */ , 4 /* 0b100 */ }, | |
205 | { 2 /* 0b010 */ , 2 /* 0b010 */ }, | |
206 | { 4 /* 0b100 */ , 4 /* 0b100 */ }, | |
207 | { 7 /* 0b111 */ , 7 /* 0b111 */ }, | |
1da177e4 LT |
208 | }; |
209 | ||
6d6006b8 JD |
210 | static const auto_chan_table_t auto_channel_select_table_adm1030 = { |
211 | { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, | |
212 | { 2 /* 0b10 */ , 0 }, | |
213 | { 0xff /* invalid */ , 0 }, | |
214 | { 0xff /* invalid */ , 0 }, | |
215 | { 3 /* 0b11 */ , 0 }, | |
1da177e4 LT |
216 | }; |
217 | ||
218 | /* That function checks if a bitfield is valid and returns the other bitfield | |
219 | * nearest match if no exact match where found. | |
220 | */ | |
221 | static int | |
222 | get_fan_auto_nearest(struct adm1031_data *data, | |
223 | int chan, u8 val, u8 reg, u8 * new_reg) | |
224 | { | |
225 | int i; | |
226 | int first_match = -1, exact_match = -1; | |
227 | u8 other_reg_val = | |
228 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
229 | ||
230 | if (val == 0) { | |
231 | *new_reg = 0; | |
232 | return 0; | |
233 | } | |
234 | ||
235 | for (i = 0; i < 8; i++) { | |
236 | if ((val == (*data->chan_select_table)[i][chan]) && | |
237 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
238 | other_reg_val)) { | |
239 | /* We found an exact match */ | |
240 | exact_match = i; | |
241 | break; | |
242 | } else if (val == (*data->chan_select_table)[i][chan] && | |
243 | first_match == -1) { | |
6d6006b8 JD |
244 | /* Save the first match in case of an exact match has |
245 | * not been found | |
1da177e4 LT |
246 | */ |
247 | first_match = i; | |
248 | } | |
249 | } | |
250 | ||
251 | if (exact_match >= 0) { | |
252 | *new_reg = exact_match; | |
253 | } else if (first_match >= 0) { | |
254 | *new_reg = first_match; | |
255 | } else { | |
256 | return -EINVAL; | |
257 | } | |
258 | return 0; | |
259 | } | |
260 | ||
c801082d JD |
261 | static ssize_t show_fan_auto_channel(struct device *dev, |
262 | struct device_attribute *attr, char *buf) | |
1da177e4 | 263 | { |
c801082d | 264 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
265 | struct adm1031_data *data = adm1031_update_device(dev); |
266 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
267 | } | |
268 | ||
269 | static ssize_t | |
c801082d JD |
270 | set_fan_auto_channel(struct device *dev, struct device_attribute *attr, |
271 | const char *buf, size_t count) | |
1da177e4 LT |
272 | { |
273 | struct i2c_client *client = to_i2c_client(dev); | |
274 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 275 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
276 | int val = simple_strtol(buf, NULL, 10); |
277 | u8 reg; | |
278 | int ret; | |
279 | u8 old_fan_mode; | |
280 | ||
281 | old_fan_mode = data->conf1; | |
282 | ||
9a61bf63 | 283 | mutex_lock(&data->update_lock); |
6d6006b8 | 284 | |
1da177e4 | 285 | if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) { |
9a61bf63 | 286 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
287 | return ret; |
288 | } | |
6d6006b8 JD |
289 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); |
290 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^ | |
1da177e4 LT |
291 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { |
292 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE){ | |
6d6006b8 JD |
293 | /* Switch to Auto Fan Mode |
294 | * Save PWM registers | |
1da177e4 LT |
295 | * Set PWM registers to 33% Both */ |
296 | data->old_pwm[0] = data->pwm[0]; | |
297 | data->old_pwm[1] = data->pwm[1]; | |
298 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
299 | } else { | |
300 | /* Switch to Manual Mode */ | |
301 | data->pwm[0] = data->old_pwm[0]; | |
302 | data->pwm[1] = data->old_pwm[1]; | |
303 | /* Restore PWM registers */ | |
6d6006b8 | 304 | adm1031_write_value(client, ADM1031_REG_PWM, |
1da177e4 LT |
305 | data->pwm[0] | (data->pwm[1] << 4)); |
306 | } | |
307 | } | |
308 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
309 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
9a61bf63 | 310 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
311 | return count; |
312 | } | |
313 | ||
c801082d JD |
314 | static SENSOR_DEVICE_ATTR(auto_fan1_channel, S_IRUGO | S_IWUSR, |
315 | show_fan_auto_channel, set_fan_auto_channel, 0); | |
316 | static SENSOR_DEVICE_ATTR(auto_fan2_channel, S_IRUGO | S_IWUSR, | |
317 | show_fan_auto_channel, set_fan_auto_channel, 1); | |
1da177e4 LT |
318 | |
319 | /* Auto Temps */ | |
c801082d JD |
320 | static ssize_t show_auto_temp_off(struct device *dev, |
321 | struct device_attribute *attr, char *buf) | |
1da177e4 | 322 | { |
c801082d | 323 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 | 324 | struct adm1031_data *data = adm1031_update_device(dev); |
6d6006b8 | 325 | return sprintf(buf, "%d\n", |
1da177e4 LT |
326 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); |
327 | } | |
c801082d JD |
328 | static ssize_t show_auto_temp_min(struct device *dev, |
329 | struct device_attribute *attr, char *buf) | |
1da177e4 | 330 | { |
c801082d | 331 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
332 | struct adm1031_data *data = adm1031_update_device(dev); |
333 | return sprintf(buf, "%d\n", | |
334 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
335 | } | |
336 | static ssize_t | |
c801082d JD |
337 | set_auto_temp_min(struct device *dev, struct device_attribute *attr, |
338 | const char *buf, size_t count) | |
1da177e4 LT |
339 | { |
340 | struct i2c_client *client = to_i2c_client(dev); | |
341 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 342 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
343 | int val = simple_strtol(buf, NULL, 10); |
344 | ||
9a61bf63 | 345 | mutex_lock(&data->update_lock); |
1da177e4 LT |
346 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); |
347 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
348 | data->auto_temp[nr]); | |
9a61bf63 | 349 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
350 | return count; |
351 | } | |
c801082d JD |
352 | static ssize_t show_auto_temp_max(struct device *dev, |
353 | struct device_attribute *attr, char *buf) | |
1da177e4 | 354 | { |
c801082d | 355 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
356 | struct adm1031_data *data = adm1031_update_device(dev); |
357 | return sprintf(buf, "%d\n", | |
358 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
359 | } | |
360 | static ssize_t | |
c801082d JD |
361 | set_auto_temp_max(struct device *dev, struct device_attribute *attr, |
362 | const char *buf, size_t count) | |
1da177e4 LT |
363 | { |
364 | struct i2c_client *client = to_i2c_client(dev); | |
365 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 366 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
367 | int val = simple_strtol(buf, NULL, 10); |
368 | ||
9a61bf63 | 369 | mutex_lock(&data->update_lock); |
1da177e4 LT |
370 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]); |
371 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
372 | data->temp_max[nr]); | |
9a61bf63 | 373 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
374 | return count; |
375 | } | |
376 | ||
c801082d JD |
377 | #define auto_temp_reg(offset) \ |
378 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \ | |
379 | show_auto_temp_off, NULL, offset - 1); \ | |
380 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
381 | show_auto_temp_min, set_auto_temp_min, offset - 1); \ | |
382 | static SENSOR_DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
383 | show_auto_temp_max, set_auto_temp_max, offset - 1) | |
1da177e4 LT |
384 | |
385 | auto_temp_reg(1); | |
386 | auto_temp_reg(2); | |
387 | auto_temp_reg(3); | |
388 | ||
389 | /* pwm */ | |
c801082d JD |
390 | static ssize_t show_pwm(struct device *dev, |
391 | struct device_attribute *attr, char *buf) | |
1da177e4 | 392 | { |
c801082d | 393 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
394 | struct adm1031_data *data = adm1031_update_device(dev); |
395 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
396 | } | |
c801082d JD |
397 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, |
398 | const char *buf, size_t count) | |
1da177e4 LT |
399 | { |
400 | struct i2c_client *client = to_i2c_client(dev); | |
401 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 402 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
403 | int val = simple_strtol(buf, NULL, 10); |
404 | int reg; | |
405 | ||
9a61bf63 | 406 | mutex_lock(&data->update_lock); |
6d6006b8 | 407 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && |
1da177e4 LT |
408 | (((val>>4) & 0xf) != 5)) { |
409 | /* In automatic mode, the only PWM accepted is 33% */ | |
9a61bf63 | 410 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
411 | return -EINVAL; |
412 | } | |
413 | data->pwm[nr] = PWM_TO_REG(val); | |
414 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
415 | adm1031_write_value(client, ADM1031_REG_PWM, | |
416 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
417 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
9a61bf63 | 418 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
419 | return count; |
420 | } | |
421 | ||
c801082d JD |
422 | static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0); |
423 | static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1); | |
424 | static SENSOR_DEVICE_ATTR(auto_fan1_min_pwm, S_IRUGO | S_IWUSR, | |
425 | show_pwm, set_pwm, 0); | |
426 | static SENSOR_DEVICE_ATTR(auto_fan2_min_pwm, S_IRUGO | S_IWUSR, | |
427 | show_pwm, set_pwm, 1); | |
1da177e4 LT |
428 | |
429 | /* Fans */ | |
430 | ||
431 | /* | |
432 | * That function checks the cases where the fan reading is not | |
44bbe87e | 433 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
434 | * not supposed to run |
435 | */ | |
436 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
437 | { | |
438 | int res = 0; | |
439 | ||
440 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
441 | switch (data->conf1 & 0x60) { | |
442 | case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */ | |
443 | res = data->temp[chan+1] >= | |
444 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); | |
445 | break; | |
446 | case 0x20: /* remote temp1 controls both fans */ | |
447 | res = | |
448 | data->temp[1] >= | |
449 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
450 | break; | |
451 | case 0x40: /* remote temp2 controls both fans */ | |
452 | res = | |
453 | data->temp[2] >= | |
454 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
455 | break; | |
456 | case 0x60: /* max controls both fans */ | |
457 | res = | |
458 | data->temp[0] >= | |
459 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
460 | || data->temp[1] >= | |
461 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
6d6006b8 | 462 | || (data->chip_type == adm1031 |
1da177e4 LT |
463 | && data->temp[2] >= |
464 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
465 | break; | |
466 | } | |
467 | } else { | |
468 | res = data->pwm[chan] > 0; | |
469 | } | |
470 | return res; | |
471 | } | |
472 | ||
473 | ||
c801082d JD |
474 | static ssize_t show_fan(struct device *dev, |
475 | struct device_attribute *attr, char *buf) | |
1da177e4 | 476 | { |
c801082d | 477 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
478 | struct adm1031_data *data = adm1031_update_device(dev); |
479 | int value; | |
480 | ||
481 | value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr], | |
482 | FAN_DIV_FROM_REG(data->fan_div[nr])) : 0; | |
483 | return sprintf(buf, "%d\n", value); | |
484 | } | |
485 | ||
c801082d JD |
486 | static ssize_t show_fan_div(struct device *dev, |
487 | struct device_attribute *attr, char *buf) | |
1da177e4 | 488 | { |
c801082d | 489 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
490 | struct adm1031_data *data = adm1031_update_device(dev); |
491 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
492 | } | |
c801082d JD |
493 | static ssize_t show_fan_min(struct device *dev, |
494 | struct device_attribute *attr, char *buf) | |
1da177e4 | 495 | { |
c801082d | 496 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
497 | struct adm1031_data *data = adm1031_update_device(dev); |
498 | return sprintf(buf, "%d\n", | |
499 | FAN_FROM_REG(data->fan_min[nr], | |
500 | FAN_DIV_FROM_REG(data->fan_div[nr]))); | |
501 | } | |
c801082d JD |
502 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
503 | const char *buf, size_t count) | |
1da177e4 LT |
504 | { |
505 | struct i2c_client *client = to_i2c_client(dev); | |
506 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 507 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
508 | int val = simple_strtol(buf, NULL, 10); |
509 | ||
9a61bf63 | 510 | mutex_lock(&data->update_lock); |
1da177e4 | 511 | if (val) { |
6d6006b8 | 512 | data->fan_min[nr] = |
1da177e4 LT |
513 | FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr])); |
514 | } else { | |
515 | data->fan_min[nr] = 0xff; | |
516 | } | |
517 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 518 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
519 | return count; |
520 | } | |
c801082d JD |
521 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
522 | const char *buf, size_t count) | |
1da177e4 LT |
523 | { |
524 | struct i2c_client *client = to_i2c_client(dev); | |
525 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 526 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
527 | int val = simple_strtol(buf, NULL, 10); |
528 | u8 tmp; | |
529 | int old_div; | |
530 | int new_min; | |
531 | ||
532 | tmp = val == 8 ? 0xc0 : | |
533 | val == 4 ? 0x80 : | |
6d6006b8 JD |
534 | val == 2 ? 0x40 : |
535 | val == 1 ? 0x00 : | |
1da177e4 LT |
536 | 0xff; |
537 | if (tmp == 0xff) | |
538 | return -EINVAL; | |
6d6006b8 | 539 | |
9a61bf63 | 540 | mutex_lock(&data->update_lock); |
38a1f0e9 JD |
541 | /* Get fresh readings */ |
542 | data->fan_div[nr] = adm1031_read_value(client, | |
543 | ADM1031_REG_FAN_DIV(nr)); | |
544 | data->fan_min[nr] = adm1031_read_value(client, | |
545 | ADM1031_REG_FAN_MIN(nr)); | |
546 | ||
547 | /* Write the new clock divider and fan min */ | |
1da177e4 | 548 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); |
6d6006b8 JD |
549 | data->fan_div[nr] = tmp | (0x3f & data->fan_div[nr]); |
550 | new_min = data->fan_min[nr] * old_div / val; | |
1da177e4 | 551 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; |
1da177e4 | 552 | |
6d6006b8 | 553 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), |
1da177e4 | 554 | data->fan_div[nr]); |
6d6006b8 | 555 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), |
1da177e4 | 556 | data->fan_min[nr]); |
38a1f0e9 JD |
557 | |
558 | /* Invalidate the cache: fan speed is no longer valid */ | |
559 | data->valid = 0; | |
9a61bf63 | 560 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
561 | return count; |
562 | } | |
563 | ||
564 | #define fan_offset(offset) \ | |
c801082d JD |
565 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
566 | show_fan, NULL, offset - 1); \ | |
567 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
568 | show_fan_min, set_fan_min, offset - 1); \ | |
569 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
570 | show_fan_div, set_fan_div, offset - 1) | |
1da177e4 LT |
571 | |
572 | fan_offset(1); | |
573 | fan_offset(2); | |
574 | ||
575 | ||
576 | /* Temps */ | |
c801082d JD |
577 | static ssize_t show_temp(struct device *dev, |
578 | struct device_attribute *attr, char *buf) | |
1da177e4 | 579 | { |
c801082d | 580 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
581 | struct adm1031_data *data = adm1031_update_device(dev); |
582 | int ext; | |
583 | ext = nr == 0 ? | |
584 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
585 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
586 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
587 | } | |
c801082d JD |
588 | static ssize_t show_temp_min(struct device *dev, |
589 | struct device_attribute *attr, char *buf) | |
1da177e4 | 590 | { |
c801082d | 591 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
592 | struct adm1031_data *data = adm1031_update_device(dev); |
593 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
594 | } | |
c801082d JD |
595 | static ssize_t show_temp_max(struct device *dev, |
596 | struct device_attribute *attr, char *buf) | |
1da177e4 | 597 | { |
c801082d | 598 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
599 | struct adm1031_data *data = adm1031_update_device(dev); |
600 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
601 | } | |
c801082d JD |
602 | static ssize_t show_temp_crit(struct device *dev, |
603 | struct device_attribute *attr, char *buf) | |
1da177e4 | 604 | { |
c801082d | 605 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
606 | struct adm1031_data *data = adm1031_update_device(dev); |
607 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
608 | } | |
c801082d JD |
609 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
610 | const char *buf, size_t count) | |
1da177e4 LT |
611 | { |
612 | struct i2c_client *client = to_i2c_client(dev); | |
613 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 614 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
615 | int val; |
616 | ||
617 | val = simple_strtol(buf, NULL, 10); | |
618 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 619 | mutex_lock(&data->update_lock); |
1da177e4 LT |
620 | data->temp_min[nr] = TEMP_TO_REG(val); |
621 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
622 | data->temp_min[nr]); | |
9a61bf63 | 623 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
624 | return count; |
625 | } | |
c801082d JD |
626 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
627 | const char *buf, size_t count) | |
1da177e4 LT |
628 | { |
629 | struct i2c_client *client = to_i2c_client(dev); | |
630 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 631 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
632 | int val; |
633 | ||
634 | val = simple_strtol(buf, NULL, 10); | |
635 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 636 | mutex_lock(&data->update_lock); |
1da177e4 LT |
637 | data->temp_max[nr] = TEMP_TO_REG(val); |
638 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
639 | data->temp_max[nr]); | |
9a61bf63 | 640 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
641 | return count; |
642 | } | |
c801082d JD |
643 | static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr, |
644 | const char *buf, size_t count) | |
1da177e4 LT |
645 | { |
646 | struct i2c_client *client = to_i2c_client(dev); | |
647 | struct adm1031_data *data = i2c_get_clientdata(client); | |
c801082d | 648 | int nr = to_sensor_dev_attr(attr)->index; |
1da177e4 LT |
649 | int val; |
650 | ||
651 | val = simple_strtol(buf, NULL, 10); | |
652 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
9a61bf63 | 653 | mutex_lock(&data->update_lock); |
1da177e4 LT |
654 | data->temp_crit[nr] = TEMP_TO_REG(val); |
655 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
656 | data->temp_crit[nr]); | |
9a61bf63 | 657 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
658 | return count; |
659 | } | |
660 | ||
c801082d JD |
661 | #define temp_reg(offset) \ |
662 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ | |
663 | show_temp, NULL, offset - 1); \ | |
664 | static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
665 | show_temp_min, set_temp_min, offset - 1); \ | |
666 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
667 | show_temp_max, set_temp_max, offset - 1); \ | |
668 | static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ | |
669 | show_temp_crit, set_temp_crit, offset - 1) | |
1da177e4 LT |
670 | |
671 | temp_reg(1); | |
672 | temp_reg(2); | |
673 | temp_reg(3); | |
674 | ||
675 | /* Alarms */ | |
30f74292 | 676 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
677 | { |
678 | struct adm1031_data *data = adm1031_update_device(dev); | |
679 | return sprintf(buf, "%d\n", data->alarm); | |
680 | } | |
681 | ||
682 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
683 | ||
050ab878 JD |
684 | static ssize_t show_alarm(struct device *dev, |
685 | struct device_attribute *attr, char *buf) | |
686 | { | |
687 | int bitnr = to_sensor_dev_attr(attr)->index; | |
688 | struct adm1031_data *data = adm1031_update_device(dev); | |
689 | return sprintf(buf, "%d\n", (data->alarm >> bitnr) & 1); | |
690 | } | |
691 | ||
692 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0); | |
693 | static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_alarm, NULL, 1); | |
694 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 2); | |
695 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); | |
696 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 4); | |
697 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 5); | |
698 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); | |
699 | static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 7); | |
700 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 8); | |
701 | static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_alarm, NULL, 9); | |
702 | static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 10); | |
703 | static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11); | |
704 | static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12); | |
705 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13); | |
706 | static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14); | |
1da177e4 | 707 | |
681c6f7a | 708 | static struct attribute *adm1031_attributes[] = { |
c801082d JD |
709 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
710 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
711 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
050ab878 JD |
712 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
713 | &sensor_dev_attr_fan1_fault.dev_attr.attr, | |
c801082d JD |
714 | &sensor_dev_attr_pwm1.dev_attr.attr, |
715 | &sensor_dev_attr_auto_fan1_channel.dev_attr.attr, | |
716 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
717 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
050ab878 | 718 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, |
c801082d | 719 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
050ab878 | 720 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, |
c801082d | 721 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
050ab878 | 722 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, |
c801082d JD |
723 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
724 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
050ab878 | 725 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, |
c801082d | 726 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
050ab878 | 727 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, |
c801082d | 728 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
050ab878 JD |
729 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, |
730 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
c801082d JD |
731 | |
732 | &sensor_dev_attr_auto_temp1_off.dev_attr.attr, | |
733 | &sensor_dev_attr_auto_temp1_min.dev_attr.attr, | |
734 | &sensor_dev_attr_auto_temp1_max.dev_attr.attr, | |
735 | ||
736 | &sensor_dev_attr_auto_temp2_off.dev_attr.attr, | |
737 | &sensor_dev_attr_auto_temp2_min.dev_attr.attr, | |
738 | &sensor_dev_attr_auto_temp2_max.dev_attr.attr, | |
739 | ||
740 | &sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr, | |
681c6f7a MH |
741 | |
742 | &dev_attr_alarms.attr, | |
743 | ||
744 | NULL | |
745 | }; | |
746 | ||
747 | static const struct attribute_group adm1031_group = { | |
748 | .attrs = adm1031_attributes, | |
749 | }; | |
750 | ||
751 | static struct attribute *adm1031_attributes_opt[] = { | |
c801082d JD |
752 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
753 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
754 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
050ab878 JD |
755 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
756 | &sensor_dev_attr_fan2_fault.dev_attr.attr, | |
c801082d JD |
757 | &sensor_dev_attr_pwm2.dev_attr.attr, |
758 | &sensor_dev_attr_auto_fan2_channel.dev_attr.attr, | |
759 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
760 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
050ab878 | 761 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, |
c801082d | 762 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
050ab878 | 763 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, |
c801082d | 764 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
050ab878 JD |
765 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, |
766 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
c801082d JD |
767 | &sensor_dev_attr_auto_temp3_off.dev_attr.attr, |
768 | &sensor_dev_attr_auto_temp3_min.dev_attr.attr, | |
769 | &sensor_dev_attr_auto_temp3_max.dev_attr.attr, | |
770 | &sensor_dev_attr_auto_fan2_min_pwm.dev_attr.attr, | |
681c6f7a MH |
771 | NULL |
772 | }; | |
773 | ||
774 | static const struct attribute_group adm1031_group_opt = { | |
775 | .attrs = adm1031_attributes_opt, | |
776 | }; | |
777 | ||
af200f88 JD |
778 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
779 | static int adm1031_detect(struct i2c_client *client, int kind, | |
780 | struct i2c_board_info *info) | |
1da177e4 | 781 | { |
af200f88 | 782 | struct i2c_adapter *adapter = client->adapter; |
1da177e4 LT |
783 | const char *name = ""; |
784 | ||
785 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
af200f88 | 786 | return -ENODEV; |
1da177e4 LT |
787 | |
788 | if (kind < 0) { | |
789 | int id, co; | |
6d6006b8 JD |
790 | id = i2c_smbus_read_byte_data(client, 0x3d); |
791 | co = i2c_smbus_read_byte_data(client, 0x3e); | |
1da177e4 LT |
792 | |
793 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) | |
af200f88 | 794 | return -ENODEV; |
1da177e4 LT |
795 | kind = (id == 0x30) ? adm1030 : adm1031; |
796 | } | |
797 | ||
798 | if (kind <= 0) | |
799 | kind = adm1031; | |
800 | ||
801 | /* Given the detected chip type, set the chip name and the | |
802 | * auto fan control helper table. */ | |
803 | if (kind == adm1030) { | |
804 | name = "adm1030"; | |
1da177e4 LT |
805 | } else if (kind == adm1031) { |
806 | name = "adm1031"; | |
1da177e4 | 807 | } |
af200f88 | 808 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1da177e4 | 809 | |
af200f88 JD |
810 | return 0; |
811 | } | |
812 | ||
813 | static int adm1031_probe(struct i2c_client *client, | |
814 | const struct i2c_device_id *id) | |
815 | { | |
816 | struct adm1031_data *data; | |
817 | int err; | |
818 | ||
819 | data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL); | |
820 | if (!data) { | |
821 | err = -ENOMEM; | |
822 | goto exit; | |
823 | } | |
824 | ||
825 | i2c_set_clientdata(client, data); | |
826 | data->chip_type = id->driver_data; | |
9a61bf63 | 827 | mutex_init(&data->update_lock); |
1da177e4 | 828 | |
af200f88 JD |
829 | if (data->chip_type == adm1030) |
830 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
831 | else | |
832 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
1da177e4 LT |
833 | |
834 | /* Initialize the ADM1031 chip */ | |
6d6006b8 | 835 | adm1031_init_client(client); |
1da177e4 LT |
836 | |
837 | /* Register sysfs hooks */ | |
6d6006b8 | 838 | if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group))) |
af200f88 | 839 | goto exit_free; |
1da177e4 | 840 | |
af200f88 | 841 | if (data->chip_type == adm1031) { |
6d6006b8 | 842 | if ((err = sysfs_create_group(&client->dev.kobj, |
681c6f7a MH |
843 | &adm1031_group_opt))) |
844 | goto exit_remove; | |
845 | } | |
846 | ||
6d6006b8 | 847 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1beeffe4 TJ |
848 | if (IS_ERR(data->hwmon_dev)) { |
849 | err = PTR_ERR(data->hwmon_dev); | |
681c6f7a | 850 | goto exit_remove; |
1da177e4 LT |
851 | } |
852 | ||
853 | return 0; | |
854 | ||
681c6f7a | 855 | exit_remove: |
6d6006b8 JD |
856 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
857 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
1da177e4 | 858 | exit_free: |
1f57ff89 | 859 | kfree(data); |
1da177e4 LT |
860 | exit: |
861 | return err; | |
862 | } | |
863 | ||
af200f88 | 864 | static int adm1031_remove(struct i2c_client *client) |
1da177e4 | 865 | { |
943b0830 | 866 | struct adm1031_data *data = i2c_get_clientdata(client); |
943b0830 | 867 | |
1beeffe4 | 868 | hwmon_device_unregister(data->hwmon_dev); |
681c6f7a MH |
869 | sysfs_remove_group(&client->dev.kobj, &adm1031_group); |
870 | sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt); | |
943b0830 | 871 | kfree(data); |
1da177e4 LT |
872 | return 0; |
873 | } | |
874 | ||
875 | static void adm1031_init_client(struct i2c_client *client) | |
876 | { | |
877 | unsigned int read_val; | |
878 | unsigned int mask; | |
879 | struct adm1031_data *data = i2c_get_clientdata(client); | |
880 | ||
881 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
882 | if (data->chip_type == adm1031) { | |
883 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
884 | ADM1031_CONF2_TACH2_ENABLE); | |
6d6006b8 | 885 | } |
1da177e4 LT |
886 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ |
887 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
888 | if ((read_val | mask) != read_val) { | |
889 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
890 | } | |
891 | ||
892 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
893 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
894 | adm1031_write_value(client, ADM1031_REG_CONF1, read_val | | |
895 | ADM1031_CONF1_MONITOR_ENABLE); | |
896 | } | |
897 | ||
898 | } | |
899 | ||
900 | static struct adm1031_data *adm1031_update_device(struct device *dev) | |
901 | { | |
902 | struct i2c_client *client = to_i2c_client(dev); | |
903 | struct adm1031_data *data = i2c_get_clientdata(client); | |
904 | int chan; | |
905 | ||
9a61bf63 | 906 | mutex_lock(&data->update_lock); |
1da177e4 LT |
907 | |
908 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
909 | || !data->valid) { | |
910 | ||
911 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
912 | for (chan = 0; | |
913 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
914 | u8 oldh, newh; | |
915 | ||
916 | oldh = | |
917 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
918 | data->ext_temp[chan] = | |
919 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
920 | newh = | |
921 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
922 | if (newh != oldh) { | |
923 | data->ext_temp[chan] = | |
924 | adm1031_read_value(client, | |
925 | ADM1031_REG_EXT_TEMP); | |
926 | #ifdef DEBUG | |
927 | oldh = | |
928 | adm1031_read_value(client, | |
929 | ADM1031_REG_TEMP(chan)); | |
930 | ||
931 | /* oldh is actually newer */ | |
932 | if (newh != oldh) | |
933 | dev_warn(&client->dev, | |
934 | "Remote temperature may be " | |
935 | "wrong.\n"); | |
936 | #endif | |
937 | } | |
938 | data->temp[chan] = newh; | |
939 | ||
940 | data->temp_min[chan] = | |
941 | adm1031_read_value(client, | |
942 | ADM1031_REG_TEMP_MIN(chan)); | |
943 | data->temp_max[chan] = | |
944 | adm1031_read_value(client, | |
945 | ADM1031_REG_TEMP_MAX(chan)); | |
946 | data->temp_crit[chan] = | |
947 | adm1031_read_value(client, | |
948 | ADM1031_REG_TEMP_CRIT(chan)); | |
949 | data->auto_temp[chan] = | |
950 | adm1031_read_value(client, | |
951 | ADM1031_REG_AUTO_TEMP(chan)); | |
952 | ||
953 | } | |
954 | ||
955 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
956 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
957 | ||
958 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
959 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) | |
960 | << 8); | |
961 | if (data->chip_type == adm1030) { | |
962 | data->alarm &= 0xc0ff; | |
963 | } | |
6d6006b8 | 964 | |
1da177e4 LT |
965 | for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) { |
966 | data->fan_div[chan] = | |
967 | adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan)); | |
968 | data->fan_min[chan] = | |
969 | adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan)); | |
970 | data->fan[chan] = | |
971 | adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan)); | |
972 | data->pwm[chan] = | |
6d6006b8 | 973 | 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >> |
1da177e4 LT |
974 | (4*chan)); |
975 | } | |
976 | data->last_updated = jiffies; | |
977 | data->valid = 1; | |
978 | } | |
979 | ||
9a61bf63 | 980 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
981 | |
982 | return data; | |
983 | } | |
984 | ||
985 | static int __init sensors_adm1031_init(void) | |
986 | { | |
987 | return i2c_add_driver(&adm1031_driver); | |
988 | } | |
989 | ||
990 | static void __exit sensors_adm1031_exit(void) | |
991 | { | |
992 | i2c_del_driver(&adm1031_driver); | |
993 | } | |
994 | ||
995 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
996 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
997 | MODULE_LICENSE("GPL"); | |
998 | ||
999 | module_init(sensors_adm1031_init); | |
1000 | module_exit(sensors_adm1031_exit); |