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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> | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
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> | |
29 | #include <linux/i2c-sensor.h> | |
943b0830 MH |
30 | #include <linux/hwmon.h> |
31 | #include <linux/err.h> | |
1da177e4 LT |
32 | |
33 | /* Following macros takes channel parameter starting from 0 to 2 */ | |
34 | #define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr)) | |
35 | #define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr)) | |
36 | #define ADM1031_REG_PWM (0x22) | |
37 | #define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr)) | |
38 | ||
39 | #define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4*(nr)) | |
40 | #define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4*(nr)) | |
41 | #define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4*(nr)) | |
42 | ||
43 | #define ADM1031_REG_TEMP(nr) (0xa + (nr)) | |
44 | #define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr)) | |
45 | ||
46 | #define ADM1031_REG_STATUS(nr) (0x2 + (nr)) | |
47 | ||
48 | #define ADM1031_REG_CONF1 0x0 | |
49 | #define ADM1031_REG_CONF2 0x1 | |
50 | #define ADM1031_REG_EXT_TEMP 0x6 | |
51 | ||
52 | #define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */ | |
53 | #define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */ | |
54 | #define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */ | |
55 | ||
56 | #define ADM1031_CONF2_PWM1_ENABLE 0x01 | |
57 | #define ADM1031_CONF2_PWM2_ENABLE 0x02 | |
58 | #define ADM1031_CONF2_TACH1_ENABLE 0x04 | |
59 | #define ADM1031_CONF2_TACH2_ENABLE 0x08 | |
60 | #define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan)) | |
61 | ||
62 | /* Addresses to scan */ | |
63 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; | |
1da177e4 LT |
64 | |
65 | /* Insmod parameters */ | |
66 | SENSORS_INSMOD_2(adm1030, adm1031); | |
67 | ||
68 | typedef u8 auto_chan_table_t[8][2]; | |
69 | ||
70 | /* Each client has this additional data */ | |
71 | struct adm1031_data { | |
72 | struct i2c_client client; | |
943b0830 | 73 | struct class_device *class_dev; |
1da177e4 LT |
74 | struct semaphore update_lock; |
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 | */ | |
81 | auto_chan_table_t *chan_select_table; | |
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 | ||
101 | static int adm1031_attach_adapter(struct i2c_adapter *adapter); | |
102 | static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind); | |
103 | static void adm1031_init_client(struct i2c_client *client); | |
104 | static int adm1031_detach_client(struct i2c_client *client); | |
105 | static struct adm1031_data *adm1031_update_device(struct device *dev); | |
106 | ||
107 | /* This is the driver that will be inserted */ | |
108 | static struct i2c_driver adm1031_driver = { | |
109 | .owner = THIS_MODULE, | |
110 | .name = "adm1031", | |
111 | .flags = I2C_DF_NOTIFY, | |
112 | .attach_adapter = adm1031_attach_adapter, | |
113 | .detach_client = adm1031_detach_client, | |
114 | }; | |
115 | ||
116 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) | |
117 | { | |
118 | return i2c_smbus_read_byte_data(client, reg); | |
119 | } | |
120 | ||
121 | static inline int | |
122 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
123 | { | |
124 | return i2c_smbus_write_byte_data(client, reg, value); | |
125 | } | |
126 | ||
127 | ||
128 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
129 | ((val + 500) / 1000))) | |
130 | ||
131 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
132 | ||
133 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
134 | ||
135 | #define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0) | |
136 | ||
137 | static int FAN_TO_REG(int reg, int div) | |
138 | { | |
139 | int tmp; | |
140 | tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div); | |
141 | return tmp > 255 ? 255 : tmp; | |
142 | } | |
143 | ||
144 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
145 | ||
146 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4) | |
147 | #define PWM_FROM_REG(val) ((val) << 4) | |
148 | ||
149 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
150 | #define FAN_CHAN_TO_REG(val, reg) \ | |
151 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
152 | ||
153 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
154 | ((((val)/500) & 0xf8)|((reg) & 0x7)) | |
155 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7))) | |
156 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) | |
157 | ||
158 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
159 | ||
160 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
161 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
162 | ||
163 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
164 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
165 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
166 | ||
167 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
168 | { | |
169 | int ret; | |
170 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
171 | ||
172 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
173 | ret = ((reg & 0xf8) | | |
174 | (range < 10000 ? 0 : | |
175 | range < 20000 ? 1 : | |
176 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
177 | return ret; | |
178 | } | |
179 | ||
180 | /* FAN auto control */ | |
181 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
182 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2] | |
183 | ||
184 | /* The tables below contains the possible values for the auto fan | |
185 | * control bitfields. the index in the table is the register value. | |
186 | * MSb is the auto fan control enable bit, so the four first entries | |
187 | * in the table disables auto fan control when both bitfields are zero. | |
188 | */ | |
189 | static auto_chan_table_t auto_channel_select_table_adm1031 = { | |
190 | {0, 0}, {0, 0}, {0, 0}, {0, 0}, | |
191 | {2 /*0b010 */ , 4 /*0b100 */ }, | |
192 | {2 /*0b010 */ , 2 /*0b010 */ }, | |
193 | {4 /*0b100 */ , 4 /*0b100 */ }, | |
194 | {7 /*0b111 */ , 7 /*0b111 */ }, | |
195 | }; | |
196 | ||
197 | static auto_chan_table_t auto_channel_select_table_adm1030 = { | |
198 | {0, 0}, {0, 0}, {0, 0}, {0, 0}, | |
199 | {2 /*0b10 */ , 0}, | |
200 | {0xff /*invalid */ , 0}, | |
201 | {0xff /*invalid */ , 0}, | |
202 | {3 /*0b11 */ , 0}, | |
203 | }; | |
204 | ||
205 | /* That function checks if a bitfield is valid and returns the other bitfield | |
206 | * nearest match if no exact match where found. | |
207 | */ | |
208 | static int | |
209 | get_fan_auto_nearest(struct adm1031_data *data, | |
210 | int chan, u8 val, u8 reg, u8 * new_reg) | |
211 | { | |
212 | int i; | |
213 | int first_match = -1, exact_match = -1; | |
214 | u8 other_reg_val = | |
215 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
216 | ||
217 | if (val == 0) { | |
218 | *new_reg = 0; | |
219 | return 0; | |
220 | } | |
221 | ||
222 | for (i = 0; i < 8; i++) { | |
223 | if ((val == (*data->chan_select_table)[i][chan]) && | |
224 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
225 | other_reg_val)) { | |
226 | /* We found an exact match */ | |
227 | exact_match = i; | |
228 | break; | |
229 | } else if (val == (*data->chan_select_table)[i][chan] && | |
230 | first_match == -1) { | |
231 | /* Save the first match in case of an exact match has not been | |
232 | * found | |
233 | */ | |
234 | first_match = i; | |
235 | } | |
236 | } | |
237 | ||
238 | if (exact_match >= 0) { | |
239 | *new_reg = exact_match; | |
240 | } else if (first_match >= 0) { | |
241 | *new_reg = first_match; | |
242 | } else { | |
243 | return -EINVAL; | |
244 | } | |
245 | return 0; | |
246 | } | |
247 | ||
248 | static ssize_t show_fan_auto_channel(struct device *dev, char *buf, int nr) | |
249 | { | |
250 | struct adm1031_data *data = adm1031_update_device(dev); | |
251 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
252 | } | |
253 | ||
254 | static ssize_t | |
255 | set_fan_auto_channel(struct device *dev, const char *buf, size_t count, int nr) | |
256 | { | |
257 | struct i2c_client *client = to_i2c_client(dev); | |
258 | struct adm1031_data *data = i2c_get_clientdata(client); | |
259 | int val = simple_strtol(buf, NULL, 10); | |
260 | u8 reg; | |
261 | int ret; | |
262 | u8 old_fan_mode; | |
263 | ||
264 | old_fan_mode = data->conf1; | |
265 | ||
266 | down(&data->update_lock); | |
267 | ||
268 | if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) { | |
269 | up(&data->update_lock); | |
270 | return ret; | |
271 | } | |
272 | if (((data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1)) & ADM1031_CONF1_AUTO_MODE) ^ | |
273 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { | |
274 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE){ | |
275 | /* Switch to Auto Fan Mode | |
276 | * Save PWM registers | |
277 | * Set PWM registers to 33% Both */ | |
278 | data->old_pwm[0] = data->pwm[0]; | |
279 | data->old_pwm[1] = data->pwm[1]; | |
280 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
281 | } else { | |
282 | /* Switch to Manual Mode */ | |
283 | data->pwm[0] = data->old_pwm[0]; | |
284 | data->pwm[1] = data->old_pwm[1]; | |
285 | /* Restore PWM registers */ | |
286 | adm1031_write_value(client, ADM1031_REG_PWM, | |
287 | data->pwm[0] | (data->pwm[1] << 4)); | |
288 | } | |
289 | } | |
290 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
291 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
292 | up(&data->update_lock); | |
293 | return count; | |
294 | } | |
295 | ||
296 | #define fan_auto_channel_offset(offset) \ | |
30f74292 | 297 | static ssize_t show_fan_auto_channel_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
298 | { \ |
299 | return show_fan_auto_channel(dev, buf, offset - 1); \ | |
300 | } \ | |
30f74292 | 301 | static ssize_t set_fan_auto_channel_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
302 | const char *buf, size_t count) \ |
303 | { \ | |
304 | return set_fan_auto_channel(dev, buf, count, offset - 1); \ | |
305 | } \ | |
306 | static DEVICE_ATTR(auto_fan##offset##_channel, S_IRUGO | S_IWUSR, \ | |
307 | show_fan_auto_channel_##offset, \ | |
308 | set_fan_auto_channel_##offset) | |
309 | ||
310 | fan_auto_channel_offset(1); | |
311 | fan_auto_channel_offset(2); | |
312 | ||
313 | /* Auto Temps */ | |
314 | static ssize_t show_auto_temp_off(struct device *dev, char *buf, int nr) | |
315 | { | |
316 | struct adm1031_data *data = adm1031_update_device(dev); | |
317 | return sprintf(buf, "%d\n", | |
318 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); | |
319 | } | |
320 | static ssize_t show_auto_temp_min(struct device *dev, char *buf, int nr) | |
321 | { | |
322 | struct adm1031_data *data = adm1031_update_device(dev); | |
323 | return sprintf(buf, "%d\n", | |
324 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
325 | } | |
326 | static ssize_t | |
327 | set_auto_temp_min(struct device *dev, const char *buf, size_t count, int nr) | |
328 | { | |
329 | struct i2c_client *client = to_i2c_client(dev); | |
330 | struct adm1031_data *data = i2c_get_clientdata(client); | |
331 | int val = simple_strtol(buf, NULL, 10); | |
332 | ||
333 | down(&data->update_lock); | |
334 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); | |
335 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
336 | data->auto_temp[nr]); | |
337 | up(&data->update_lock); | |
338 | return count; | |
339 | } | |
340 | static ssize_t show_auto_temp_max(struct device *dev, char *buf, int nr) | |
341 | { | |
342 | struct adm1031_data *data = adm1031_update_device(dev); | |
343 | return sprintf(buf, "%d\n", | |
344 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
345 | } | |
346 | static ssize_t | |
347 | set_auto_temp_max(struct device *dev, const char *buf, size_t count, int nr) | |
348 | { | |
349 | struct i2c_client *client = to_i2c_client(dev); | |
350 | struct adm1031_data *data = i2c_get_clientdata(client); | |
351 | int val = simple_strtol(buf, NULL, 10); | |
352 | ||
353 | down(&data->update_lock); | |
354 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]); | |
355 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
356 | data->temp_max[nr]); | |
357 | up(&data->update_lock); | |
358 | return count; | |
359 | } | |
360 | ||
361 | #define auto_temp_reg(offset) \ | |
30f74292 | 362 | static ssize_t show_auto_temp_##offset##_off (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
363 | { \ |
364 | return show_auto_temp_off(dev, buf, offset - 1); \ | |
365 | } \ | |
30f74292 | 366 | static ssize_t show_auto_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
367 | { \ |
368 | return show_auto_temp_min(dev, buf, offset - 1); \ | |
369 | } \ | |
30f74292 | 370 | static ssize_t show_auto_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
371 | { \ |
372 | return show_auto_temp_max(dev, buf, offset - 1); \ | |
373 | } \ | |
30f74292 | 374 | static ssize_t set_auto_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
375 | const char *buf, size_t count) \ |
376 | { \ | |
377 | return set_auto_temp_min(dev, buf, count, offset - 1); \ | |
378 | } \ | |
30f74292 | 379 | static ssize_t set_auto_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
380 | const char *buf, size_t count) \ |
381 | { \ | |
382 | return set_auto_temp_max(dev, buf, count, offset - 1); \ | |
383 | } \ | |
384 | static DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \ | |
385 | show_auto_temp_##offset##_off, NULL); \ | |
386 | static DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
387 | show_auto_temp_##offset##_min, set_auto_temp_##offset##_min);\ | |
388 | static DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
389 | show_auto_temp_##offset##_max, set_auto_temp_##offset##_max) | |
390 | ||
391 | auto_temp_reg(1); | |
392 | auto_temp_reg(2); | |
393 | auto_temp_reg(3); | |
394 | ||
395 | /* pwm */ | |
396 | static ssize_t show_pwm(struct device *dev, char *buf, int nr) | |
397 | { | |
398 | struct adm1031_data *data = adm1031_update_device(dev); | |
399 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
400 | } | |
401 | static ssize_t | |
402 | set_pwm(struct device *dev, const char *buf, size_t count, int nr) | |
403 | { | |
404 | struct i2c_client *client = to_i2c_client(dev); | |
405 | struct adm1031_data *data = i2c_get_clientdata(client); | |
406 | int val = simple_strtol(buf, NULL, 10); | |
407 | int reg; | |
408 | ||
409 | down(&data->update_lock); | |
410 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && | |
411 | (((val>>4) & 0xf) != 5)) { | |
412 | /* In automatic mode, the only PWM accepted is 33% */ | |
413 | up(&data->update_lock); | |
414 | return -EINVAL; | |
415 | } | |
416 | data->pwm[nr] = PWM_TO_REG(val); | |
417 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
418 | adm1031_write_value(client, ADM1031_REG_PWM, | |
419 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
420 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
421 | up(&data->update_lock); | |
422 | return count; | |
423 | } | |
424 | ||
425 | #define pwm_reg(offset) \ | |
30f74292 | 426 | static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
427 | { \ |
428 | return show_pwm(dev, buf, offset - 1); \ | |
429 | } \ | |
30f74292 | 430 | static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
431 | const char *buf, size_t count) \ |
432 | { \ | |
433 | return set_pwm(dev, buf, count, offset - 1); \ | |
434 | } \ | |
435 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
436 | show_pwm_##offset, set_pwm_##offset) | |
437 | ||
438 | pwm_reg(1); | |
439 | pwm_reg(2); | |
440 | ||
441 | /* Fans */ | |
442 | ||
443 | /* | |
444 | * That function checks the cases where the fan reading is not | |
44bbe87e | 445 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
446 | * not supposed to run |
447 | */ | |
448 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
449 | { | |
450 | int res = 0; | |
451 | ||
452 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
453 | switch (data->conf1 & 0x60) { | |
454 | case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */ | |
455 | res = data->temp[chan+1] >= | |
456 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); | |
457 | break; | |
458 | case 0x20: /* remote temp1 controls both fans */ | |
459 | res = | |
460 | data->temp[1] >= | |
461 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
462 | break; | |
463 | case 0x40: /* remote temp2 controls both fans */ | |
464 | res = | |
465 | data->temp[2] >= | |
466 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
467 | break; | |
468 | case 0x60: /* max controls both fans */ | |
469 | res = | |
470 | data->temp[0] >= | |
471 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
472 | || data->temp[1] >= | |
473 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
474 | || (data->chip_type == adm1031 | |
475 | && data->temp[2] >= | |
476 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
477 | break; | |
478 | } | |
479 | } else { | |
480 | res = data->pwm[chan] > 0; | |
481 | } | |
482 | return res; | |
483 | } | |
484 | ||
485 | ||
486 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
487 | { | |
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 | ||
496 | static ssize_t show_fan_div(struct device *dev, char *buf, int nr) | |
497 | { | |
498 | struct adm1031_data *data = adm1031_update_device(dev); | |
499 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
500 | } | |
501 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
502 | { | |
503 | struct adm1031_data *data = adm1031_update_device(dev); | |
504 | return sprintf(buf, "%d\n", | |
505 | FAN_FROM_REG(data->fan_min[nr], | |
506 | FAN_DIV_FROM_REG(data->fan_div[nr]))); | |
507 | } | |
508 | static ssize_t | |
509 | set_fan_min(struct device *dev, const char *buf, size_t count, int nr) | |
510 | { | |
511 | struct i2c_client *client = to_i2c_client(dev); | |
512 | struct adm1031_data *data = i2c_get_clientdata(client); | |
513 | int val = simple_strtol(buf, NULL, 10); | |
514 | ||
515 | down(&data->update_lock); | |
516 | if (val) { | |
517 | data->fan_min[nr] = | |
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]); | |
523 | up(&data->update_lock); | |
524 | return count; | |
525 | } | |
526 | static ssize_t | |
527 | set_fan_div(struct device *dev, const char *buf, size_t count, int nr) | |
528 | { | |
529 | struct i2c_client *client = to_i2c_client(dev); | |
530 | struct adm1031_data *data = i2c_get_clientdata(client); | |
531 | int val = simple_strtol(buf, NULL, 10); | |
532 | u8 tmp; | |
533 | int old_div; | |
534 | int new_min; | |
535 | ||
536 | tmp = val == 8 ? 0xc0 : | |
537 | val == 4 ? 0x80 : | |
538 | val == 2 ? 0x40 : | |
539 | val == 1 ? 0x00 : | |
540 | 0xff; | |
541 | if (tmp == 0xff) | |
542 | return -EINVAL; | |
543 | ||
544 | down(&data->update_lock); | |
545 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); | |
546 | data->fan_div[nr] = (tmp & 0xC0) | (0x3f & data->fan_div[nr]); | |
547 | new_min = data->fan_min[nr] * old_div / | |
548 | FAN_DIV_FROM_REG(data->fan_div[nr]); | |
549 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; | |
550 | data->fan[nr] = data->fan[nr] * old_div / | |
551 | FAN_DIV_FROM_REG(data->fan_div[nr]); | |
552 | ||
553 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), | |
554 | data->fan_div[nr]); | |
555 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), | |
556 | data->fan_min[nr]); | |
557 | up(&data->update_lock); | |
558 | return count; | |
559 | } | |
560 | ||
561 | #define fan_offset(offset) \ | |
30f74292 | 562 | static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
563 | { \ |
564 | return show_fan(dev, buf, offset - 1); \ | |
565 | } \ | |
30f74292 | 566 | static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
567 | { \ |
568 | return show_fan_min(dev, buf, offset - 1); \ | |
569 | } \ | |
30f74292 | 570 | static ssize_t show_fan_##offset##_div (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
571 | { \ |
572 | return show_fan_div(dev, buf, offset - 1); \ | |
573 | } \ | |
30f74292 | 574 | static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
575 | const char *buf, size_t count) \ |
576 | { \ | |
577 | return set_fan_min(dev, buf, count, offset - 1); \ | |
578 | } \ | |
30f74292 | 579 | static ssize_t set_fan_##offset##_div (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
580 | const char *buf, size_t count) \ |
581 | { \ | |
582 | return set_fan_div(dev, buf, count, offset - 1); \ | |
583 | } \ | |
584 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \ | |
585 | NULL); \ | |
586 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
587 | show_fan_##offset##_min, set_fan_##offset##_min); \ | |
588 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
589 | show_fan_##offset##_div, set_fan_##offset##_div); \ | |
590 | static DEVICE_ATTR(auto_fan##offset##_min_pwm, S_IRUGO | S_IWUSR, \ | |
591 | show_pwm_##offset, set_pwm_##offset) | |
592 | ||
593 | fan_offset(1); | |
594 | fan_offset(2); | |
595 | ||
596 | ||
597 | /* Temps */ | |
598 | static ssize_t show_temp(struct device *dev, char *buf, int nr) | |
599 | { | |
600 | struct adm1031_data *data = adm1031_update_device(dev); | |
601 | int ext; | |
602 | ext = nr == 0 ? | |
603 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
604 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
605 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
606 | } | |
607 | static ssize_t show_temp_min(struct device *dev, char *buf, int nr) | |
608 | { | |
609 | struct adm1031_data *data = adm1031_update_device(dev); | |
610 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
611 | } | |
612 | static ssize_t show_temp_max(struct device *dev, char *buf, int nr) | |
613 | { | |
614 | struct adm1031_data *data = adm1031_update_device(dev); | |
615 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
616 | } | |
617 | static ssize_t show_temp_crit(struct device *dev, char *buf, int nr) | |
618 | { | |
619 | struct adm1031_data *data = adm1031_update_device(dev); | |
620 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
621 | } | |
622 | static ssize_t | |
623 | set_temp_min(struct device *dev, const char *buf, size_t count, int nr) | |
624 | { | |
625 | struct i2c_client *client = to_i2c_client(dev); | |
626 | struct adm1031_data *data = i2c_get_clientdata(client); | |
627 | int val; | |
628 | ||
629 | val = simple_strtol(buf, NULL, 10); | |
630 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
631 | down(&data->update_lock); | |
632 | data->temp_min[nr] = TEMP_TO_REG(val); | |
633 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
634 | data->temp_min[nr]); | |
635 | up(&data->update_lock); | |
636 | return count; | |
637 | } | |
638 | static ssize_t | |
639 | set_temp_max(struct device *dev, const char *buf, size_t count, int nr) | |
640 | { | |
641 | struct i2c_client *client = to_i2c_client(dev); | |
642 | struct adm1031_data *data = i2c_get_clientdata(client); | |
643 | int val; | |
644 | ||
645 | val = simple_strtol(buf, NULL, 10); | |
646 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
647 | down(&data->update_lock); | |
648 | data->temp_max[nr] = TEMP_TO_REG(val); | |
649 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
650 | data->temp_max[nr]); | |
651 | up(&data->update_lock); | |
652 | return count; | |
653 | } | |
654 | static ssize_t | |
655 | set_temp_crit(struct device *dev, const char *buf, size_t count, int nr) | |
656 | { | |
657 | struct i2c_client *client = to_i2c_client(dev); | |
658 | struct adm1031_data *data = i2c_get_clientdata(client); | |
659 | int val; | |
660 | ||
661 | val = simple_strtol(buf, NULL, 10); | |
662 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
663 | down(&data->update_lock); | |
664 | data->temp_crit[nr] = TEMP_TO_REG(val); | |
665 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
666 | data->temp_crit[nr]); | |
667 | up(&data->update_lock); | |
668 | return count; | |
669 | } | |
670 | ||
671 | #define temp_reg(offset) \ | |
30f74292 | 672 | static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
673 | { \ |
674 | return show_temp(dev, buf, offset - 1); \ | |
675 | } \ | |
30f74292 | 676 | static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
677 | { \ |
678 | return show_temp_min(dev, buf, offset - 1); \ | |
679 | } \ | |
30f74292 | 680 | static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
681 | { \ |
682 | return show_temp_max(dev, buf, offset - 1); \ | |
683 | } \ | |
30f74292 | 684 | static ssize_t show_temp_##offset##_crit (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
685 | { \ |
686 | return show_temp_crit(dev, buf, offset - 1); \ | |
687 | } \ | |
30f74292 | 688 | static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
689 | const char *buf, size_t count) \ |
690 | { \ | |
691 | return set_temp_min(dev, buf, count, offset - 1); \ | |
692 | } \ | |
30f74292 | 693 | static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
694 | const char *buf, size_t count) \ |
695 | { \ | |
696 | return set_temp_max(dev, buf, count, offset - 1); \ | |
697 | } \ | |
30f74292 | 698 | static ssize_t set_temp_##offset##_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
699 | const char *buf, size_t count) \ |
700 | { \ | |
701 | return set_temp_crit(dev, buf, count, offset - 1); \ | |
702 | } \ | |
703 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \ | |
704 | NULL); \ | |
705 | static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
706 | show_temp_##offset##_min, set_temp_##offset##_min); \ | |
707 | static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
708 | show_temp_##offset##_max, set_temp_##offset##_max); \ | |
709 | static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ | |
710 | show_temp_##offset##_crit, set_temp_##offset##_crit) | |
711 | ||
712 | temp_reg(1); | |
713 | temp_reg(2); | |
714 | temp_reg(3); | |
715 | ||
716 | /* Alarms */ | |
30f74292 | 717 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
718 | { |
719 | struct adm1031_data *data = adm1031_update_device(dev); | |
720 | return sprintf(buf, "%d\n", data->alarm); | |
721 | } | |
722 | ||
723 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
724 | ||
725 | ||
726 | static int adm1031_attach_adapter(struct i2c_adapter *adapter) | |
727 | { | |
728 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
729 | return 0; | |
2ed2dc3c | 730 | return i2c_probe(adapter, &addr_data, adm1031_detect); |
1da177e4 LT |
731 | } |
732 | ||
2ed2dc3c | 733 | /* This function is called by i2c_probe */ |
1da177e4 LT |
734 | static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind) |
735 | { | |
736 | struct i2c_client *new_client; | |
737 | struct adm1031_data *data; | |
738 | int err = 0; | |
739 | const char *name = ""; | |
740 | ||
741 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
742 | goto exit; | |
743 | ||
744 | if (!(data = kmalloc(sizeof(struct adm1031_data), GFP_KERNEL))) { | |
745 | err = -ENOMEM; | |
746 | goto exit; | |
747 | } | |
748 | memset(data, 0, sizeof(struct adm1031_data)); | |
749 | ||
750 | new_client = &data->client; | |
751 | i2c_set_clientdata(new_client, data); | |
752 | new_client->addr = address; | |
753 | new_client->adapter = adapter; | |
754 | new_client->driver = &adm1031_driver; | |
755 | new_client->flags = 0; | |
756 | ||
757 | if (kind < 0) { | |
758 | int id, co; | |
759 | id = i2c_smbus_read_byte_data(new_client, 0x3d); | |
760 | co = i2c_smbus_read_byte_data(new_client, 0x3e); | |
761 | ||
762 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) | |
763 | goto exit_free; | |
764 | kind = (id == 0x30) ? adm1030 : adm1031; | |
765 | } | |
766 | ||
767 | if (kind <= 0) | |
768 | kind = adm1031; | |
769 | ||
770 | /* Given the detected chip type, set the chip name and the | |
771 | * auto fan control helper table. */ | |
772 | if (kind == adm1030) { | |
773 | name = "adm1030"; | |
774 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
775 | } else if (kind == adm1031) { | |
776 | name = "adm1031"; | |
777 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
778 | } | |
779 | data->chip_type = kind; | |
780 | ||
781 | strlcpy(new_client->name, name, I2C_NAME_SIZE); | |
782 | data->valid = 0; | |
783 | init_MUTEX(&data->update_lock); | |
784 | ||
785 | /* Tell the I2C layer a new client has arrived */ | |
786 | if ((err = i2c_attach_client(new_client))) | |
787 | goto exit_free; | |
788 | ||
789 | /* Initialize the ADM1031 chip */ | |
790 | adm1031_init_client(new_client); | |
791 | ||
792 | /* Register sysfs hooks */ | |
943b0830 MH |
793 | data->class_dev = hwmon_device_register(&new_client->dev); |
794 | if (IS_ERR(data->class_dev)) { | |
795 | err = PTR_ERR(data->class_dev); | |
796 | goto exit_detach; | |
797 | } | |
798 | ||
1da177e4 LT |
799 | device_create_file(&new_client->dev, &dev_attr_fan1_input); |
800 | device_create_file(&new_client->dev, &dev_attr_fan1_div); | |
801 | device_create_file(&new_client->dev, &dev_attr_fan1_min); | |
802 | device_create_file(&new_client->dev, &dev_attr_pwm1); | |
803 | device_create_file(&new_client->dev, &dev_attr_auto_fan1_channel); | |
804 | device_create_file(&new_client->dev, &dev_attr_temp1_input); | |
805 | device_create_file(&new_client->dev, &dev_attr_temp1_min); | |
806 | device_create_file(&new_client->dev, &dev_attr_temp1_max); | |
807 | device_create_file(&new_client->dev, &dev_attr_temp1_crit); | |
808 | device_create_file(&new_client->dev, &dev_attr_temp2_input); | |
809 | device_create_file(&new_client->dev, &dev_attr_temp2_min); | |
810 | device_create_file(&new_client->dev, &dev_attr_temp2_max); | |
811 | device_create_file(&new_client->dev, &dev_attr_temp2_crit); | |
812 | ||
813 | device_create_file(&new_client->dev, &dev_attr_auto_temp1_off); | |
814 | device_create_file(&new_client->dev, &dev_attr_auto_temp1_min); | |
815 | device_create_file(&new_client->dev, &dev_attr_auto_temp1_max); | |
816 | ||
817 | device_create_file(&new_client->dev, &dev_attr_auto_temp2_off); | |
818 | device_create_file(&new_client->dev, &dev_attr_auto_temp2_min); | |
819 | device_create_file(&new_client->dev, &dev_attr_auto_temp2_max); | |
820 | ||
821 | device_create_file(&new_client->dev, &dev_attr_auto_fan1_min_pwm); | |
822 | ||
823 | device_create_file(&new_client->dev, &dev_attr_alarms); | |
824 | ||
825 | if (kind == adm1031) { | |
826 | device_create_file(&new_client->dev, &dev_attr_fan2_input); | |
827 | device_create_file(&new_client->dev, &dev_attr_fan2_div); | |
828 | device_create_file(&new_client->dev, &dev_attr_fan2_min); | |
829 | device_create_file(&new_client->dev, &dev_attr_pwm2); | |
830 | device_create_file(&new_client->dev, | |
831 | &dev_attr_auto_fan2_channel); | |
832 | device_create_file(&new_client->dev, &dev_attr_temp3_input); | |
833 | device_create_file(&new_client->dev, &dev_attr_temp3_min); | |
834 | device_create_file(&new_client->dev, &dev_attr_temp3_max); | |
835 | device_create_file(&new_client->dev, &dev_attr_temp3_crit); | |
836 | device_create_file(&new_client->dev, &dev_attr_auto_temp3_off); | |
837 | device_create_file(&new_client->dev, &dev_attr_auto_temp3_min); | |
838 | device_create_file(&new_client->dev, &dev_attr_auto_temp3_max); | |
839 | device_create_file(&new_client->dev, &dev_attr_auto_fan2_min_pwm); | |
840 | } | |
841 | ||
842 | return 0; | |
843 | ||
943b0830 MH |
844 | exit_detach: |
845 | i2c_detach_client(new_client); | |
1da177e4 | 846 | exit_free: |
1f57ff89 | 847 | kfree(data); |
1da177e4 LT |
848 | exit: |
849 | return err; | |
850 | } | |
851 | ||
852 | static int adm1031_detach_client(struct i2c_client *client) | |
853 | { | |
943b0830 | 854 | struct adm1031_data *data = i2c_get_clientdata(client); |
1da177e4 | 855 | int ret; |
943b0830 MH |
856 | |
857 | hwmon_device_unregister(data->class_dev); | |
1da177e4 LT |
858 | if ((ret = i2c_detach_client(client)) != 0) { |
859 | return ret; | |
860 | } | |
943b0830 | 861 | kfree(data); |
1da177e4 LT |
862 | return 0; |
863 | } | |
864 | ||
865 | static void adm1031_init_client(struct i2c_client *client) | |
866 | { | |
867 | unsigned int read_val; | |
868 | unsigned int mask; | |
869 | struct adm1031_data *data = i2c_get_clientdata(client); | |
870 | ||
871 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
872 | if (data->chip_type == adm1031) { | |
873 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
874 | ADM1031_CONF2_TACH2_ENABLE); | |
875 | } | |
876 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ | |
877 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
878 | if ((read_val | mask) != read_val) { | |
879 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
880 | } | |
881 | ||
882 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
883 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
884 | adm1031_write_value(client, ADM1031_REG_CONF1, read_val | | |
885 | ADM1031_CONF1_MONITOR_ENABLE); | |
886 | } | |
887 | ||
888 | } | |
889 | ||
890 | static struct adm1031_data *adm1031_update_device(struct device *dev) | |
891 | { | |
892 | struct i2c_client *client = to_i2c_client(dev); | |
893 | struct adm1031_data *data = i2c_get_clientdata(client); | |
894 | int chan; | |
895 | ||
896 | down(&data->update_lock); | |
897 | ||
898 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
899 | || !data->valid) { | |
900 | ||
901 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
902 | for (chan = 0; | |
903 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
904 | u8 oldh, newh; | |
905 | ||
906 | oldh = | |
907 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
908 | data->ext_temp[chan] = | |
909 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
910 | newh = | |
911 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
912 | if (newh != oldh) { | |
913 | data->ext_temp[chan] = | |
914 | adm1031_read_value(client, | |
915 | ADM1031_REG_EXT_TEMP); | |
916 | #ifdef DEBUG | |
917 | oldh = | |
918 | adm1031_read_value(client, | |
919 | ADM1031_REG_TEMP(chan)); | |
920 | ||
921 | /* oldh is actually newer */ | |
922 | if (newh != oldh) | |
923 | dev_warn(&client->dev, | |
924 | "Remote temperature may be " | |
925 | "wrong.\n"); | |
926 | #endif | |
927 | } | |
928 | data->temp[chan] = newh; | |
929 | ||
930 | data->temp_min[chan] = | |
931 | adm1031_read_value(client, | |
932 | ADM1031_REG_TEMP_MIN(chan)); | |
933 | data->temp_max[chan] = | |
934 | adm1031_read_value(client, | |
935 | ADM1031_REG_TEMP_MAX(chan)); | |
936 | data->temp_crit[chan] = | |
937 | adm1031_read_value(client, | |
938 | ADM1031_REG_TEMP_CRIT(chan)); | |
939 | data->auto_temp[chan] = | |
940 | adm1031_read_value(client, | |
941 | ADM1031_REG_AUTO_TEMP(chan)); | |
942 | ||
943 | } | |
944 | ||
945 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
946 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
947 | ||
948 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
949 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) | |
950 | << 8); | |
951 | if (data->chip_type == adm1030) { | |
952 | data->alarm &= 0xc0ff; | |
953 | } | |
954 | ||
955 | for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) { | |
956 | data->fan_div[chan] = | |
957 | adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan)); | |
958 | data->fan_min[chan] = | |
959 | adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan)); | |
960 | data->fan[chan] = | |
961 | adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan)); | |
962 | data->pwm[chan] = | |
963 | 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >> | |
964 | (4*chan)); | |
965 | } | |
966 | data->last_updated = jiffies; | |
967 | data->valid = 1; | |
968 | } | |
969 | ||
970 | up(&data->update_lock); | |
971 | ||
972 | return data; | |
973 | } | |
974 | ||
975 | static int __init sensors_adm1031_init(void) | |
976 | { | |
977 | return i2c_add_driver(&adm1031_driver); | |
978 | } | |
979 | ||
980 | static void __exit sensors_adm1031_exit(void) | |
981 | { | |
982 | i2c_del_driver(&adm1031_driver); | |
983 | } | |
984 | ||
985 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
986 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
987 | MODULE_LICENSE("GPL"); | |
988 | ||
989 | module_init(sensors_adm1031_init); | |
990 | module_exit(sensors_adm1031_exit); |