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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> | |
943b0830 MH |
29 | #include <linux/hwmon.h> |
30 | #include <linux/err.h> | |
1da177e4 LT |
31 | |
32 | /* Following macros takes channel parameter starting from 0 to 2 */ | |
33 | #define ADM1031_REG_FAN_SPEED(nr) (0x08 + (nr)) | |
34 | #define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr)) | |
35 | #define ADM1031_REG_PWM (0x22) | |
36 | #define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr)) | |
37 | ||
38 | #define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4*(nr)) | |
39 | #define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4*(nr)) | |
40 | #define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4*(nr)) | |
41 | ||
42 | #define ADM1031_REG_TEMP(nr) (0xa + (nr)) | |
43 | #define ADM1031_REG_AUTO_TEMP(nr) (0x24 + (nr)) | |
44 | ||
45 | #define ADM1031_REG_STATUS(nr) (0x2 + (nr)) | |
46 | ||
47 | #define ADM1031_REG_CONF1 0x0 | |
48 | #define ADM1031_REG_CONF2 0x1 | |
49 | #define ADM1031_REG_EXT_TEMP 0x6 | |
50 | ||
51 | #define ADM1031_CONF1_MONITOR_ENABLE 0x01 /* Monitoring enable */ | |
52 | #define ADM1031_CONF1_PWM_INVERT 0x08 /* PWM Invert */ | |
53 | #define ADM1031_CONF1_AUTO_MODE 0x80 /* Auto FAN */ | |
54 | ||
55 | #define ADM1031_CONF2_PWM1_ENABLE 0x01 | |
56 | #define ADM1031_CONF2_PWM2_ENABLE 0x02 | |
57 | #define ADM1031_CONF2_TACH1_ENABLE 0x04 | |
58 | #define ADM1031_CONF2_TACH2_ENABLE 0x08 | |
59 | #define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan)) | |
60 | ||
61 | /* Addresses to scan */ | |
62 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; | |
1da177e4 LT |
63 | |
64 | /* Insmod parameters */ | |
f4b50261 | 65 | I2C_CLIENT_INSMOD_2(adm1030, adm1031); |
1da177e4 LT |
66 | |
67 | typedef u8 auto_chan_table_t[8][2]; | |
68 | ||
69 | /* Each client has this additional data */ | |
70 | struct adm1031_data { | |
71 | struct i2c_client client; | |
943b0830 | 72 | struct class_device *class_dev; |
1da177e4 LT |
73 | struct semaphore update_lock; |
74 | int chip_type; | |
75 | char valid; /* !=0 if following fields are valid */ | |
76 | unsigned long last_updated; /* In jiffies */ | |
77 | /* The chan_select_table contains the possible configurations for | |
78 | * auto fan control. | |
79 | */ | |
80 | auto_chan_table_t *chan_select_table; | |
81 | u16 alarm; | |
82 | u8 conf1; | |
83 | u8 conf2; | |
84 | u8 fan[2]; | |
85 | u8 fan_div[2]; | |
86 | u8 fan_min[2]; | |
87 | u8 pwm[2]; | |
88 | u8 old_pwm[2]; | |
89 | s8 temp[3]; | |
90 | u8 ext_temp[3]; | |
91 | u8 auto_temp[3]; | |
92 | u8 auto_temp_min[3]; | |
93 | u8 auto_temp_off[3]; | |
94 | u8 auto_temp_max[3]; | |
95 | s8 temp_min[3]; | |
96 | s8 temp_max[3]; | |
97 | s8 temp_crit[3]; | |
98 | }; | |
99 | ||
100 | static int adm1031_attach_adapter(struct i2c_adapter *adapter); | |
101 | static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind); | |
102 | static void adm1031_init_client(struct i2c_client *client); | |
103 | static int adm1031_detach_client(struct i2c_client *client); | |
104 | static struct adm1031_data *adm1031_update_device(struct device *dev); | |
105 | ||
106 | /* This is the driver that will be inserted */ | |
107 | static struct i2c_driver adm1031_driver = { | |
108 | .owner = THIS_MODULE, | |
109 | .name = "adm1031", | |
110 | .flags = I2C_DF_NOTIFY, | |
111 | .attach_adapter = adm1031_attach_adapter, | |
112 | .detach_client = adm1031_detach_client, | |
113 | }; | |
114 | ||
115 | static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg) | |
116 | { | |
117 | return i2c_smbus_read_byte_data(client, reg); | |
118 | } | |
119 | ||
120 | static inline int | |
121 | adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value) | |
122 | { | |
123 | return i2c_smbus_write_byte_data(client, reg, value); | |
124 | } | |
125 | ||
126 | ||
127 | #define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \ | |
128 | ((val + 500) / 1000))) | |
129 | ||
130 | #define TEMP_FROM_REG(val) ((val) * 1000) | |
131 | ||
132 | #define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125) | |
133 | ||
134 | #define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0) | |
135 | ||
136 | static int FAN_TO_REG(int reg, int div) | |
137 | { | |
138 | int tmp; | |
139 | tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div); | |
140 | return tmp > 255 ? 255 : tmp; | |
141 | } | |
142 | ||
143 | #define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6)) | |
144 | ||
145 | #define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4) | |
146 | #define PWM_FROM_REG(val) ((val) << 4) | |
147 | ||
148 | #define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7) | |
149 | #define FAN_CHAN_TO_REG(val, reg) \ | |
150 | (((reg) & 0x1F) | (((val) << 5) & 0xe0)) | |
151 | ||
152 | #define AUTO_TEMP_MIN_TO_REG(val, reg) \ | |
153 | ((((val)/500) & 0xf8)|((reg) & 0x7)) | |
154 | #define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7))) | |
155 | #define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2)) | |
156 | ||
157 | #define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2) | |
158 | ||
159 | #define AUTO_TEMP_OFF_FROM_REG(reg) \ | |
160 | (AUTO_TEMP_MIN_FROM_REG(reg) - 5000) | |
161 | ||
162 | #define AUTO_TEMP_MAX_FROM_REG(reg) \ | |
163 | (AUTO_TEMP_RANGE_FROM_REG(reg) + \ | |
164 | AUTO_TEMP_MIN_FROM_REG(reg)) | |
165 | ||
166 | static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm) | |
167 | { | |
168 | int ret; | |
169 | int range = val - AUTO_TEMP_MIN_FROM_REG(reg); | |
170 | ||
171 | range = ((val - AUTO_TEMP_MIN_FROM_REG(reg))*10)/(16 - pwm); | |
172 | ret = ((reg & 0xf8) | | |
173 | (range < 10000 ? 0 : | |
174 | range < 20000 ? 1 : | |
175 | range < 40000 ? 2 : range < 80000 ? 3 : 4)); | |
176 | return ret; | |
177 | } | |
178 | ||
179 | /* FAN auto control */ | |
180 | #define GET_FAN_AUTO_BITFIELD(data, idx) \ | |
181 | (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2] | |
182 | ||
183 | /* The tables below contains the possible values for the auto fan | |
184 | * control bitfields. the index in the table is the register value. | |
185 | * MSb is the auto fan control enable bit, so the four first entries | |
186 | * in the table disables auto fan control when both bitfields are zero. | |
187 | */ | |
188 | static auto_chan_table_t auto_channel_select_table_adm1031 = { | |
189 | {0, 0}, {0, 0}, {0, 0}, {0, 0}, | |
190 | {2 /*0b010 */ , 4 /*0b100 */ }, | |
191 | {2 /*0b010 */ , 2 /*0b010 */ }, | |
192 | {4 /*0b100 */ , 4 /*0b100 */ }, | |
193 | {7 /*0b111 */ , 7 /*0b111 */ }, | |
194 | }; | |
195 | ||
196 | static auto_chan_table_t auto_channel_select_table_adm1030 = { | |
197 | {0, 0}, {0, 0}, {0, 0}, {0, 0}, | |
198 | {2 /*0b10 */ , 0}, | |
199 | {0xff /*invalid */ , 0}, | |
200 | {0xff /*invalid */ , 0}, | |
201 | {3 /*0b11 */ , 0}, | |
202 | }; | |
203 | ||
204 | /* That function checks if a bitfield is valid and returns the other bitfield | |
205 | * nearest match if no exact match where found. | |
206 | */ | |
207 | static int | |
208 | get_fan_auto_nearest(struct adm1031_data *data, | |
209 | int chan, u8 val, u8 reg, u8 * new_reg) | |
210 | { | |
211 | int i; | |
212 | int first_match = -1, exact_match = -1; | |
213 | u8 other_reg_val = | |
214 | (*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1]; | |
215 | ||
216 | if (val == 0) { | |
217 | *new_reg = 0; | |
218 | return 0; | |
219 | } | |
220 | ||
221 | for (i = 0; i < 8; i++) { | |
222 | if ((val == (*data->chan_select_table)[i][chan]) && | |
223 | ((*data->chan_select_table)[i][chan ? 0 : 1] == | |
224 | other_reg_val)) { | |
225 | /* We found an exact match */ | |
226 | exact_match = i; | |
227 | break; | |
228 | } else if (val == (*data->chan_select_table)[i][chan] && | |
229 | first_match == -1) { | |
230 | /* Save the first match in case of an exact match has not been | |
231 | * found | |
232 | */ | |
233 | first_match = i; | |
234 | } | |
235 | } | |
236 | ||
237 | if (exact_match >= 0) { | |
238 | *new_reg = exact_match; | |
239 | } else if (first_match >= 0) { | |
240 | *new_reg = first_match; | |
241 | } else { | |
242 | return -EINVAL; | |
243 | } | |
244 | return 0; | |
245 | } | |
246 | ||
247 | static ssize_t show_fan_auto_channel(struct device *dev, char *buf, int nr) | |
248 | { | |
249 | struct adm1031_data *data = adm1031_update_device(dev); | |
250 | return sprintf(buf, "%d\n", GET_FAN_AUTO_BITFIELD(data, nr)); | |
251 | } | |
252 | ||
253 | static ssize_t | |
254 | set_fan_auto_channel(struct device *dev, const char *buf, size_t count, int nr) | |
255 | { | |
256 | struct i2c_client *client = to_i2c_client(dev); | |
257 | struct adm1031_data *data = i2c_get_clientdata(client); | |
258 | int val = simple_strtol(buf, NULL, 10); | |
259 | u8 reg; | |
260 | int ret; | |
261 | u8 old_fan_mode; | |
262 | ||
263 | old_fan_mode = data->conf1; | |
264 | ||
265 | down(&data->update_lock); | |
266 | ||
267 | if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, ®))) { | |
268 | up(&data->update_lock); | |
269 | return ret; | |
270 | } | |
271 | if (((data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1)) & ADM1031_CONF1_AUTO_MODE) ^ | |
272 | (old_fan_mode & ADM1031_CONF1_AUTO_MODE)) { | |
273 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE){ | |
274 | /* Switch to Auto Fan Mode | |
275 | * Save PWM registers | |
276 | * Set PWM registers to 33% Both */ | |
277 | data->old_pwm[0] = data->pwm[0]; | |
278 | data->old_pwm[1] = data->pwm[1]; | |
279 | adm1031_write_value(client, ADM1031_REG_PWM, 0x55); | |
280 | } else { | |
281 | /* Switch to Manual Mode */ | |
282 | data->pwm[0] = data->old_pwm[0]; | |
283 | data->pwm[1] = data->old_pwm[1]; | |
284 | /* Restore PWM registers */ | |
285 | adm1031_write_value(client, ADM1031_REG_PWM, | |
286 | data->pwm[0] | (data->pwm[1] << 4)); | |
287 | } | |
288 | } | |
289 | data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1); | |
290 | adm1031_write_value(client, ADM1031_REG_CONF1, data->conf1); | |
291 | up(&data->update_lock); | |
292 | return count; | |
293 | } | |
294 | ||
295 | #define fan_auto_channel_offset(offset) \ | |
30f74292 | 296 | static ssize_t show_fan_auto_channel_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
297 | { \ |
298 | return show_fan_auto_channel(dev, buf, offset - 1); \ | |
299 | } \ | |
30f74292 | 300 | static ssize_t set_fan_auto_channel_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
301 | const char *buf, size_t count) \ |
302 | { \ | |
303 | return set_fan_auto_channel(dev, buf, count, offset - 1); \ | |
304 | } \ | |
305 | static DEVICE_ATTR(auto_fan##offset##_channel, S_IRUGO | S_IWUSR, \ | |
306 | show_fan_auto_channel_##offset, \ | |
307 | set_fan_auto_channel_##offset) | |
308 | ||
309 | fan_auto_channel_offset(1); | |
310 | fan_auto_channel_offset(2); | |
311 | ||
312 | /* Auto Temps */ | |
313 | static ssize_t show_auto_temp_off(struct device *dev, char *buf, int nr) | |
314 | { | |
315 | struct adm1031_data *data = adm1031_update_device(dev); | |
316 | return sprintf(buf, "%d\n", | |
317 | AUTO_TEMP_OFF_FROM_REG(data->auto_temp[nr])); | |
318 | } | |
319 | static ssize_t show_auto_temp_min(struct device *dev, char *buf, int nr) | |
320 | { | |
321 | struct adm1031_data *data = adm1031_update_device(dev); | |
322 | return sprintf(buf, "%d\n", | |
323 | AUTO_TEMP_MIN_FROM_REG(data->auto_temp[nr])); | |
324 | } | |
325 | static ssize_t | |
326 | set_auto_temp_min(struct device *dev, const char *buf, size_t count, int nr) | |
327 | { | |
328 | struct i2c_client *client = to_i2c_client(dev); | |
329 | struct adm1031_data *data = i2c_get_clientdata(client); | |
330 | int val = simple_strtol(buf, NULL, 10); | |
331 | ||
332 | down(&data->update_lock); | |
333 | data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]); | |
334 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
335 | data->auto_temp[nr]); | |
336 | up(&data->update_lock); | |
337 | return count; | |
338 | } | |
339 | static ssize_t show_auto_temp_max(struct device *dev, char *buf, int nr) | |
340 | { | |
341 | struct adm1031_data *data = adm1031_update_device(dev); | |
342 | return sprintf(buf, "%d\n", | |
343 | AUTO_TEMP_MAX_FROM_REG(data->auto_temp[nr])); | |
344 | } | |
345 | static ssize_t | |
346 | set_auto_temp_max(struct device *dev, const char *buf, size_t count, int nr) | |
347 | { | |
348 | struct i2c_client *client = to_i2c_client(dev); | |
349 | struct adm1031_data *data = i2c_get_clientdata(client); | |
350 | int val = simple_strtol(buf, NULL, 10); | |
351 | ||
352 | down(&data->update_lock); | |
353 | data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]); | |
354 | adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr), | |
355 | data->temp_max[nr]); | |
356 | up(&data->update_lock); | |
357 | return count; | |
358 | } | |
359 | ||
360 | #define auto_temp_reg(offset) \ | |
30f74292 | 361 | static ssize_t show_auto_temp_##offset##_off (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
362 | { \ |
363 | return show_auto_temp_off(dev, buf, offset - 1); \ | |
364 | } \ | |
30f74292 | 365 | static ssize_t show_auto_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
366 | { \ |
367 | return show_auto_temp_min(dev, buf, offset - 1); \ | |
368 | } \ | |
30f74292 | 369 | static ssize_t show_auto_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
370 | { \ |
371 | return show_auto_temp_max(dev, buf, offset - 1); \ | |
372 | } \ | |
30f74292 | 373 | static ssize_t set_auto_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
374 | const char *buf, size_t count) \ |
375 | { \ | |
376 | return set_auto_temp_min(dev, buf, count, offset - 1); \ | |
377 | } \ | |
30f74292 | 378 | static ssize_t set_auto_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
379 | const char *buf, size_t count) \ |
380 | { \ | |
381 | return set_auto_temp_max(dev, buf, count, offset - 1); \ | |
382 | } \ | |
383 | static DEVICE_ATTR(auto_temp##offset##_off, S_IRUGO, \ | |
384 | show_auto_temp_##offset##_off, NULL); \ | |
385 | static DEVICE_ATTR(auto_temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
386 | show_auto_temp_##offset##_min, set_auto_temp_##offset##_min);\ | |
387 | static DEVICE_ATTR(auto_temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
388 | show_auto_temp_##offset##_max, set_auto_temp_##offset##_max) | |
389 | ||
390 | auto_temp_reg(1); | |
391 | auto_temp_reg(2); | |
392 | auto_temp_reg(3); | |
393 | ||
394 | /* pwm */ | |
395 | static ssize_t show_pwm(struct device *dev, char *buf, int nr) | |
396 | { | |
397 | struct adm1031_data *data = adm1031_update_device(dev); | |
398 | return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm[nr])); | |
399 | } | |
400 | static ssize_t | |
401 | set_pwm(struct device *dev, const char *buf, size_t count, int nr) | |
402 | { | |
403 | struct i2c_client *client = to_i2c_client(dev); | |
404 | struct adm1031_data *data = i2c_get_clientdata(client); | |
405 | int val = simple_strtol(buf, NULL, 10); | |
406 | int reg; | |
407 | ||
408 | down(&data->update_lock); | |
409 | if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) && | |
410 | (((val>>4) & 0xf) != 5)) { | |
411 | /* In automatic mode, the only PWM accepted is 33% */ | |
412 | up(&data->update_lock); | |
413 | return -EINVAL; | |
414 | } | |
415 | data->pwm[nr] = PWM_TO_REG(val); | |
416 | reg = adm1031_read_value(client, ADM1031_REG_PWM); | |
417 | adm1031_write_value(client, ADM1031_REG_PWM, | |
418 | nr ? ((data->pwm[nr] << 4) & 0xf0) | (reg & 0xf) | |
419 | : (data->pwm[nr] & 0xf) | (reg & 0xf0)); | |
420 | up(&data->update_lock); | |
421 | return count; | |
422 | } | |
423 | ||
424 | #define pwm_reg(offset) \ | |
30f74292 | 425 | static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
426 | { \ |
427 | return show_pwm(dev, buf, offset - 1); \ | |
428 | } \ | |
30f74292 | 429 | static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
430 | const char *buf, size_t count) \ |
431 | { \ | |
432 | return set_pwm(dev, buf, count, offset - 1); \ | |
433 | } \ | |
434 | static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \ | |
435 | show_pwm_##offset, set_pwm_##offset) | |
436 | ||
437 | pwm_reg(1); | |
438 | pwm_reg(2); | |
439 | ||
440 | /* Fans */ | |
441 | ||
442 | /* | |
443 | * That function checks the cases where the fan reading is not | |
44bbe87e | 444 | * relevant. It is used to provide 0 as fan reading when the fan is |
1da177e4 LT |
445 | * not supposed to run |
446 | */ | |
447 | static int trust_fan_readings(struct adm1031_data *data, int chan) | |
448 | { | |
449 | int res = 0; | |
450 | ||
451 | if (data->conf1 & ADM1031_CONF1_AUTO_MODE) { | |
452 | switch (data->conf1 & 0x60) { | |
453 | case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */ | |
454 | res = data->temp[chan+1] >= | |
455 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]); | |
456 | break; | |
457 | case 0x20: /* remote temp1 controls both fans */ | |
458 | res = | |
459 | data->temp[1] >= | |
460 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]); | |
461 | break; | |
462 | case 0x40: /* remote temp2 controls both fans */ | |
463 | res = | |
464 | data->temp[2] >= | |
465 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2]); | |
466 | break; | |
467 | case 0x60: /* max controls both fans */ | |
468 | res = | |
469 | data->temp[0] >= | |
470 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[0]) | |
471 | || data->temp[1] >= | |
472 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[1]) | |
473 | || (data->chip_type == adm1031 | |
474 | && data->temp[2] >= | |
475 | AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[2])); | |
476 | break; | |
477 | } | |
478 | } else { | |
479 | res = data->pwm[chan] > 0; | |
480 | } | |
481 | return res; | |
482 | } | |
483 | ||
484 | ||
485 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
486 | { | |
487 | struct adm1031_data *data = adm1031_update_device(dev); | |
488 | int value; | |
489 | ||
490 | value = trust_fan_readings(data, nr) ? FAN_FROM_REG(data->fan[nr], | |
491 | FAN_DIV_FROM_REG(data->fan_div[nr])) : 0; | |
492 | return sprintf(buf, "%d\n", value); | |
493 | } | |
494 | ||
495 | static ssize_t show_fan_div(struct device *dev, char *buf, int nr) | |
496 | { | |
497 | struct adm1031_data *data = adm1031_update_device(dev); | |
498 | return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[nr])); | |
499 | } | |
500 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
501 | { | |
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 | } | |
507 | static ssize_t | |
508 | set_fan_min(struct device *dev, const char *buf, size_t count, int nr) | |
509 | { | |
510 | struct i2c_client *client = to_i2c_client(dev); | |
511 | struct adm1031_data *data = i2c_get_clientdata(client); | |
512 | int val = simple_strtol(buf, NULL, 10); | |
513 | ||
514 | down(&data->update_lock); | |
515 | if (val) { | |
516 | data->fan_min[nr] = | |
517 | FAN_TO_REG(val, FAN_DIV_FROM_REG(data->fan_div[nr])); | |
518 | } else { | |
519 | data->fan_min[nr] = 0xff; | |
520 | } | |
521 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), data->fan_min[nr]); | |
522 | up(&data->update_lock); | |
523 | return count; | |
524 | } | |
525 | static ssize_t | |
526 | set_fan_div(struct device *dev, const char *buf, size_t count, int nr) | |
527 | { | |
528 | struct i2c_client *client = to_i2c_client(dev); | |
529 | struct adm1031_data *data = i2c_get_clientdata(client); | |
530 | int val = simple_strtol(buf, NULL, 10); | |
531 | u8 tmp; | |
532 | int old_div; | |
533 | int new_min; | |
534 | ||
535 | tmp = val == 8 ? 0xc0 : | |
536 | val == 4 ? 0x80 : | |
537 | val == 2 ? 0x40 : | |
538 | val == 1 ? 0x00 : | |
539 | 0xff; | |
540 | if (tmp == 0xff) | |
541 | return -EINVAL; | |
542 | ||
543 | down(&data->update_lock); | |
544 | old_div = FAN_DIV_FROM_REG(data->fan_div[nr]); | |
545 | data->fan_div[nr] = (tmp & 0xC0) | (0x3f & data->fan_div[nr]); | |
546 | new_min = data->fan_min[nr] * old_div / | |
547 | FAN_DIV_FROM_REG(data->fan_div[nr]); | |
548 | data->fan_min[nr] = new_min > 0xff ? 0xff : new_min; | |
549 | data->fan[nr] = data->fan[nr] * old_div / | |
550 | FAN_DIV_FROM_REG(data->fan_div[nr]); | |
551 | ||
552 | adm1031_write_value(client, ADM1031_REG_FAN_DIV(nr), | |
553 | data->fan_div[nr]); | |
554 | adm1031_write_value(client, ADM1031_REG_FAN_MIN(nr), | |
555 | data->fan_min[nr]); | |
556 | up(&data->update_lock); | |
557 | return count; | |
558 | } | |
559 | ||
560 | #define fan_offset(offset) \ | |
30f74292 | 561 | static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
562 | { \ |
563 | return show_fan(dev, buf, offset - 1); \ | |
564 | } \ | |
30f74292 | 565 | static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
566 | { \ |
567 | return show_fan_min(dev, buf, offset - 1); \ | |
568 | } \ | |
30f74292 | 569 | static ssize_t show_fan_##offset##_div (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
570 | { \ |
571 | return show_fan_div(dev, buf, offset - 1); \ | |
572 | } \ | |
30f74292 | 573 | static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
574 | const char *buf, size_t count) \ |
575 | { \ | |
576 | return set_fan_min(dev, buf, count, offset - 1); \ | |
577 | } \ | |
30f74292 | 578 | static ssize_t set_fan_##offset##_div (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
579 | const char *buf, size_t count) \ |
580 | { \ | |
581 | return set_fan_div(dev, buf, count, offset - 1); \ | |
582 | } \ | |
583 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, \ | |
584 | NULL); \ | |
585 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
586 | show_fan_##offset##_min, set_fan_##offset##_min); \ | |
587 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
588 | show_fan_##offset##_div, set_fan_##offset##_div); \ | |
589 | static DEVICE_ATTR(auto_fan##offset##_min_pwm, S_IRUGO | S_IWUSR, \ | |
590 | show_pwm_##offset, set_pwm_##offset) | |
591 | ||
592 | fan_offset(1); | |
593 | fan_offset(2); | |
594 | ||
595 | ||
596 | /* Temps */ | |
597 | static ssize_t show_temp(struct device *dev, char *buf, int nr) | |
598 | { | |
599 | struct adm1031_data *data = adm1031_update_device(dev); | |
600 | int ext; | |
601 | ext = nr == 0 ? | |
602 | ((data->ext_temp[nr] >> 6) & 0x3) * 2 : | |
603 | (((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7)); | |
604 | return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext)); | |
605 | } | |
606 | static ssize_t show_temp_min(struct device *dev, char *buf, int nr) | |
607 | { | |
608 | struct adm1031_data *data = adm1031_update_device(dev); | |
609 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); | |
610 | } | |
611 | static ssize_t show_temp_max(struct device *dev, char *buf, int nr) | |
612 | { | |
613 | struct adm1031_data *data = adm1031_update_device(dev); | |
614 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); | |
615 | } | |
616 | static ssize_t show_temp_crit(struct device *dev, char *buf, int nr) | |
617 | { | |
618 | struct adm1031_data *data = adm1031_update_device(dev); | |
619 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); | |
620 | } | |
621 | static ssize_t | |
622 | set_temp_min(struct device *dev, const char *buf, size_t count, int nr) | |
623 | { | |
624 | struct i2c_client *client = to_i2c_client(dev); | |
625 | struct adm1031_data *data = i2c_get_clientdata(client); | |
626 | int val; | |
627 | ||
628 | val = simple_strtol(buf, NULL, 10); | |
629 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
630 | down(&data->update_lock); | |
631 | data->temp_min[nr] = TEMP_TO_REG(val); | |
632 | adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr), | |
633 | data->temp_min[nr]); | |
634 | up(&data->update_lock); | |
635 | return count; | |
636 | } | |
637 | static ssize_t | |
638 | set_temp_max(struct device *dev, const char *buf, size_t count, int nr) | |
639 | { | |
640 | struct i2c_client *client = to_i2c_client(dev); | |
641 | struct adm1031_data *data = i2c_get_clientdata(client); | |
642 | int val; | |
643 | ||
644 | val = simple_strtol(buf, NULL, 10); | |
645 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
646 | down(&data->update_lock); | |
647 | data->temp_max[nr] = TEMP_TO_REG(val); | |
648 | adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr), | |
649 | data->temp_max[nr]); | |
650 | up(&data->update_lock); | |
651 | return count; | |
652 | } | |
653 | static ssize_t | |
654 | set_temp_crit(struct device *dev, const char *buf, size_t count, int nr) | |
655 | { | |
656 | struct i2c_client *client = to_i2c_client(dev); | |
657 | struct adm1031_data *data = i2c_get_clientdata(client); | |
658 | int val; | |
659 | ||
660 | val = simple_strtol(buf, NULL, 10); | |
661 | val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875); | |
662 | down(&data->update_lock); | |
663 | data->temp_crit[nr] = TEMP_TO_REG(val); | |
664 | adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr), | |
665 | data->temp_crit[nr]); | |
666 | up(&data->update_lock); | |
667 | return count; | |
668 | } | |
669 | ||
670 | #define temp_reg(offset) \ | |
30f74292 | 671 | static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
672 | { \ |
673 | return show_temp(dev, buf, offset - 1); \ | |
674 | } \ | |
30f74292 | 675 | static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
676 | { \ |
677 | return show_temp_min(dev, buf, offset - 1); \ | |
678 | } \ | |
30f74292 | 679 | static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
680 | { \ |
681 | return show_temp_max(dev, buf, offset - 1); \ | |
682 | } \ | |
30f74292 | 683 | static ssize_t show_temp_##offset##_crit (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
684 | { \ |
685 | return show_temp_crit(dev, buf, offset - 1); \ | |
686 | } \ | |
30f74292 | 687 | static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
688 | const char *buf, size_t count) \ |
689 | { \ | |
690 | return set_temp_min(dev, buf, count, offset - 1); \ | |
691 | } \ | |
30f74292 | 692 | static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
693 | const char *buf, size_t count) \ |
694 | { \ | |
695 | return set_temp_max(dev, buf, count, offset - 1); \ | |
696 | } \ | |
30f74292 | 697 | static ssize_t set_temp_##offset##_crit (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
698 | const char *buf, size_t count) \ |
699 | { \ | |
700 | return set_temp_crit(dev, buf, count, offset - 1); \ | |
701 | } \ | |
702 | static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset, \ | |
703 | NULL); \ | |
704 | static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ | |
705 | show_temp_##offset##_min, set_temp_##offset##_min); \ | |
706 | static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ | |
707 | show_temp_##offset##_max, set_temp_##offset##_max); \ | |
708 | static DEVICE_ATTR(temp##offset##_crit, S_IRUGO | S_IWUSR, \ | |
709 | show_temp_##offset##_crit, set_temp_##offset##_crit) | |
710 | ||
711 | temp_reg(1); | |
712 | temp_reg(2); | |
713 | temp_reg(3); | |
714 | ||
715 | /* Alarms */ | |
30f74292 | 716 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
717 | { |
718 | struct adm1031_data *data = adm1031_update_device(dev); | |
719 | return sprintf(buf, "%d\n", data->alarm); | |
720 | } | |
721 | ||
722 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
723 | ||
724 | ||
725 | static int adm1031_attach_adapter(struct i2c_adapter *adapter) | |
726 | { | |
727 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
728 | return 0; | |
2ed2dc3c | 729 | return i2c_probe(adapter, &addr_data, adm1031_detect); |
1da177e4 LT |
730 | } |
731 | ||
2ed2dc3c | 732 | /* This function is called by i2c_probe */ |
1da177e4 LT |
733 | static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind) |
734 | { | |
735 | struct i2c_client *new_client; | |
736 | struct adm1031_data *data; | |
737 | int err = 0; | |
738 | const char *name = ""; | |
739 | ||
740 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
741 | goto exit; | |
742 | ||
743 | if (!(data = kmalloc(sizeof(struct adm1031_data), GFP_KERNEL))) { | |
744 | err = -ENOMEM; | |
745 | goto exit; | |
746 | } | |
747 | memset(data, 0, sizeof(struct adm1031_data)); | |
748 | ||
749 | new_client = &data->client; | |
750 | i2c_set_clientdata(new_client, data); | |
751 | new_client->addr = address; | |
752 | new_client->adapter = adapter; | |
753 | new_client->driver = &adm1031_driver; | |
754 | new_client->flags = 0; | |
755 | ||
756 | if (kind < 0) { | |
757 | int id, co; | |
758 | id = i2c_smbus_read_byte_data(new_client, 0x3d); | |
759 | co = i2c_smbus_read_byte_data(new_client, 0x3e); | |
760 | ||
761 | if (!((id == 0x31 || id == 0x30) && co == 0x41)) | |
762 | goto exit_free; | |
763 | kind = (id == 0x30) ? adm1030 : adm1031; | |
764 | } | |
765 | ||
766 | if (kind <= 0) | |
767 | kind = adm1031; | |
768 | ||
769 | /* Given the detected chip type, set the chip name and the | |
770 | * auto fan control helper table. */ | |
771 | if (kind == adm1030) { | |
772 | name = "adm1030"; | |
773 | data->chan_select_table = &auto_channel_select_table_adm1030; | |
774 | } else if (kind == adm1031) { | |
775 | name = "adm1031"; | |
776 | data->chan_select_table = &auto_channel_select_table_adm1031; | |
777 | } | |
778 | data->chip_type = kind; | |
779 | ||
780 | strlcpy(new_client->name, name, I2C_NAME_SIZE); | |
781 | data->valid = 0; | |
782 | init_MUTEX(&data->update_lock); | |
783 | ||
784 | /* Tell the I2C layer a new client has arrived */ | |
785 | if ((err = i2c_attach_client(new_client))) | |
786 | goto exit_free; | |
787 | ||
788 | /* Initialize the ADM1031 chip */ | |
789 | adm1031_init_client(new_client); | |
790 | ||
791 | /* Register sysfs hooks */ | |
943b0830 MH |
792 | data->class_dev = hwmon_device_register(&new_client->dev); |
793 | if (IS_ERR(data->class_dev)) { | |
794 | err = PTR_ERR(data->class_dev); | |
795 | goto exit_detach; | |
796 | } | |
797 | ||
1da177e4 LT |
798 | device_create_file(&new_client->dev, &dev_attr_fan1_input); |
799 | device_create_file(&new_client->dev, &dev_attr_fan1_div); | |
800 | device_create_file(&new_client->dev, &dev_attr_fan1_min); | |
801 | device_create_file(&new_client->dev, &dev_attr_pwm1); | |
802 | device_create_file(&new_client->dev, &dev_attr_auto_fan1_channel); | |
803 | device_create_file(&new_client->dev, &dev_attr_temp1_input); | |
804 | device_create_file(&new_client->dev, &dev_attr_temp1_min); | |
805 | device_create_file(&new_client->dev, &dev_attr_temp1_max); | |
806 | device_create_file(&new_client->dev, &dev_attr_temp1_crit); | |
807 | device_create_file(&new_client->dev, &dev_attr_temp2_input); | |
808 | device_create_file(&new_client->dev, &dev_attr_temp2_min); | |
809 | device_create_file(&new_client->dev, &dev_attr_temp2_max); | |
810 | device_create_file(&new_client->dev, &dev_attr_temp2_crit); | |
811 | ||
812 | device_create_file(&new_client->dev, &dev_attr_auto_temp1_off); | |
813 | device_create_file(&new_client->dev, &dev_attr_auto_temp1_min); | |
814 | device_create_file(&new_client->dev, &dev_attr_auto_temp1_max); | |
815 | ||
816 | device_create_file(&new_client->dev, &dev_attr_auto_temp2_off); | |
817 | device_create_file(&new_client->dev, &dev_attr_auto_temp2_min); | |
818 | device_create_file(&new_client->dev, &dev_attr_auto_temp2_max); | |
819 | ||
820 | device_create_file(&new_client->dev, &dev_attr_auto_fan1_min_pwm); | |
821 | ||
822 | device_create_file(&new_client->dev, &dev_attr_alarms); | |
823 | ||
824 | if (kind == adm1031) { | |
825 | device_create_file(&new_client->dev, &dev_attr_fan2_input); | |
826 | device_create_file(&new_client->dev, &dev_attr_fan2_div); | |
827 | device_create_file(&new_client->dev, &dev_attr_fan2_min); | |
828 | device_create_file(&new_client->dev, &dev_attr_pwm2); | |
829 | device_create_file(&new_client->dev, | |
830 | &dev_attr_auto_fan2_channel); | |
831 | device_create_file(&new_client->dev, &dev_attr_temp3_input); | |
832 | device_create_file(&new_client->dev, &dev_attr_temp3_min); | |
833 | device_create_file(&new_client->dev, &dev_attr_temp3_max); | |
834 | device_create_file(&new_client->dev, &dev_attr_temp3_crit); | |
835 | device_create_file(&new_client->dev, &dev_attr_auto_temp3_off); | |
836 | device_create_file(&new_client->dev, &dev_attr_auto_temp3_min); | |
837 | device_create_file(&new_client->dev, &dev_attr_auto_temp3_max); | |
838 | device_create_file(&new_client->dev, &dev_attr_auto_fan2_min_pwm); | |
839 | } | |
840 | ||
841 | return 0; | |
842 | ||
943b0830 MH |
843 | exit_detach: |
844 | i2c_detach_client(new_client); | |
1da177e4 | 845 | exit_free: |
1f57ff89 | 846 | kfree(data); |
1da177e4 LT |
847 | exit: |
848 | return err; | |
849 | } | |
850 | ||
851 | static int adm1031_detach_client(struct i2c_client *client) | |
852 | { | |
943b0830 | 853 | struct adm1031_data *data = i2c_get_clientdata(client); |
1da177e4 | 854 | int ret; |
943b0830 MH |
855 | |
856 | hwmon_device_unregister(data->class_dev); | |
1da177e4 LT |
857 | if ((ret = i2c_detach_client(client)) != 0) { |
858 | return ret; | |
859 | } | |
943b0830 | 860 | kfree(data); |
1da177e4 LT |
861 | return 0; |
862 | } | |
863 | ||
864 | static void adm1031_init_client(struct i2c_client *client) | |
865 | { | |
866 | unsigned int read_val; | |
867 | unsigned int mask; | |
868 | struct adm1031_data *data = i2c_get_clientdata(client); | |
869 | ||
870 | mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE); | |
871 | if (data->chip_type == adm1031) { | |
872 | mask |= (ADM1031_CONF2_PWM2_ENABLE | | |
873 | ADM1031_CONF2_TACH2_ENABLE); | |
874 | } | |
875 | /* Initialize the ADM1031 chip (enables fan speed reading ) */ | |
876 | read_val = adm1031_read_value(client, ADM1031_REG_CONF2); | |
877 | if ((read_val | mask) != read_val) { | |
878 | adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask); | |
879 | } | |
880 | ||
881 | read_val = adm1031_read_value(client, ADM1031_REG_CONF1); | |
882 | if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) { | |
883 | adm1031_write_value(client, ADM1031_REG_CONF1, read_val | | |
884 | ADM1031_CONF1_MONITOR_ENABLE); | |
885 | } | |
886 | ||
887 | } | |
888 | ||
889 | static struct adm1031_data *adm1031_update_device(struct device *dev) | |
890 | { | |
891 | struct i2c_client *client = to_i2c_client(dev); | |
892 | struct adm1031_data *data = i2c_get_clientdata(client); | |
893 | int chan; | |
894 | ||
895 | down(&data->update_lock); | |
896 | ||
897 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
898 | || !data->valid) { | |
899 | ||
900 | dev_dbg(&client->dev, "Starting adm1031 update\n"); | |
901 | for (chan = 0; | |
902 | chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) { | |
903 | u8 oldh, newh; | |
904 | ||
905 | oldh = | |
906 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
907 | data->ext_temp[chan] = | |
908 | adm1031_read_value(client, ADM1031_REG_EXT_TEMP); | |
909 | newh = | |
910 | adm1031_read_value(client, ADM1031_REG_TEMP(chan)); | |
911 | if (newh != oldh) { | |
912 | data->ext_temp[chan] = | |
913 | adm1031_read_value(client, | |
914 | ADM1031_REG_EXT_TEMP); | |
915 | #ifdef DEBUG | |
916 | oldh = | |
917 | adm1031_read_value(client, | |
918 | ADM1031_REG_TEMP(chan)); | |
919 | ||
920 | /* oldh is actually newer */ | |
921 | if (newh != oldh) | |
922 | dev_warn(&client->dev, | |
923 | "Remote temperature may be " | |
924 | "wrong.\n"); | |
925 | #endif | |
926 | } | |
927 | data->temp[chan] = newh; | |
928 | ||
929 | data->temp_min[chan] = | |
930 | adm1031_read_value(client, | |
931 | ADM1031_REG_TEMP_MIN(chan)); | |
932 | data->temp_max[chan] = | |
933 | adm1031_read_value(client, | |
934 | ADM1031_REG_TEMP_MAX(chan)); | |
935 | data->temp_crit[chan] = | |
936 | adm1031_read_value(client, | |
937 | ADM1031_REG_TEMP_CRIT(chan)); | |
938 | data->auto_temp[chan] = | |
939 | adm1031_read_value(client, | |
940 | ADM1031_REG_AUTO_TEMP(chan)); | |
941 | ||
942 | } | |
943 | ||
944 | data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1); | |
945 | data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2); | |
946 | ||
947 | data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0)) | |
948 | | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) | |
949 | << 8); | |
950 | if (data->chip_type == adm1030) { | |
951 | data->alarm &= 0xc0ff; | |
952 | } | |
953 | ||
954 | for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) { | |
955 | data->fan_div[chan] = | |
956 | adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan)); | |
957 | data->fan_min[chan] = | |
958 | adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan)); | |
959 | data->fan[chan] = | |
960 | adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan)); | |
961 | data->pwm[chan] = | |
962 | 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >> | |
963 | (4*chan)); | |
964 | } | |
965 | data->last_updated = jiffies; | |
966 | data->valid = 1; | |
967 | } | |
968 | ||
969 | up(&data->update_lock); | |
970 | ||
971 | return data; | |
972 | } | |
973 | ||
974 | static int __init sensors_adm1031_init(void) | |
975 | { | |
976 | return i2c_add_driver(&adm1031_driver); | |
977 | } | |
978 | ||
979 | static void __exit sensors_adm1031_exit(void) | |
980 | { | |
981 | i2c_del_driver(&adm1031_driver); | |
982 | } | |
983 | ||
984 | MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>"); | |
985 | MODULE_DESCRIPTION("ADM1031/ADM1030 driver"); | |
986 | MODULE_LICENSE("GPL"); | |
987 | ||
988 | module_init(sensors_adm1031_init); | |
989 | module_exit(sensors_adm1031_exit); |