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1da177e4 LT |
1 | /* |
2 | asb100.c - Part of lm_sensors, Linux kernel modules for hardware | |
3 | monitoring | |
4 | ||
5 | Copyright (C) 2004 Mark M. Hoffman <mhoffman@lightlink.com> | |
6 | ||
7 | (derived from w83781d.c) | |
8 | ||
9 | Copyright (C) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>, | |
10 | Philip Edelbrock <phil@netroedge.com>, and | |
11 | Mark Studebaker <mdsxyz123@yahoo.com> | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | */ | |
27 | ||
28 | /* | |
29 | This driver supports the hardware sensor chips: Asus ASB100 and | |
30 | ASB100-A "BACH". | |
31 | ||
32 | ASB100-A supports pwm1, while plain ASB100 does not. There is no known | |
33 | way for the driver to tell which one is there. | |
34 | ||
35 | Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA | |
36 | asb100 7 3 1 4 0x31 0x0694 yes no | |
37 | */ | |
38 | ||
39 | #include <linux/module.h> | |
40 | #include <linux/slab.h> | |
41 | #include <linux/i2c.h> | |
943b0830 | 42 | #include <linux/hwmon.h> |
303760b4 | 43 | #include <linux/hwmon-vid.h> |
943b0830 | 44 | #include <linux/err.h> |
1da177e4 | 45 | #include <linux/init.h> |
ff324094 | 46 | #include <linux/jiffies.h> |
1da177e4 LT |
47 | #include "lm75.h" |
48 | ||
49 | /* | |
50 | HISTORY: | |
51 | 2003-12-29 1.0.0 Ported from lm_sensors project for kernel 2.6 | |
52 | */ | |
53 | #define ASB100_VERSION "1.0.0" | |
54 | ||
55 | /* I2C addresses to scan */ | |
56 | static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; | |
57 | ||
1da177e4 | 58 | /* Insmod parameters */ |
f4b50261 | 59 | I2C_CLIENT_INSMOD_1(asb100); |
1da177e4 LT |
60 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " |
61 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
62 | ||
63 | /* Voltage IN registers 0-6 */ | |
64 | #define ASB100_REG_IN(nr) (0x20 + (nr)) | |
65 | #define ASB100_REG_IN_MAX(nr) (0x2b + (nr * 2)) | |
66 | #define ASB100_REG_IN_MIN(nr) (0x2c + (nr * 2)) | |
67 | ||
68 | /* FAN IN registers 1-3 */ | |
69 | #define ASB100_REG_FAN(nr) (0x28 + (nr)) | |
70 | #define ASB100_REG_FAN_MIN(nr) (0x3b + (nr)) | |
71 | ||
72 | /* TEMPERATURE registers 1-4 */ | |
73 | static const u16 asb100_reg_temp[] = {0, 0x27, 0x150, 0x250, 0x17}; | |
74 | static const u16 asb100_reg_temp_max[] = {0, 0x39, 0x155, 0x255, 0x18}; | |
75 | static const u16 asb100_reg_temp_hyst[] = {0, 0x3a, 0x153, 0x253, 0x19}; | |
76 | ||
77 | #define ASB100_REG_TEMP(nr) (asb100_reg_temp[nr]) | |
78 | #define ASB100_REG_TEMP_MAX(nr) (asb100_reg_temp_max[nr]) | |
79 | #define ASB100_REG_TEMP_HYST(nr) (asb100_reg_temp_hyst[nr]) | |
80 | ||
81 | #define ASB100_REG_TEMP2_CONFIG 0x0152 | |
82 | #define ASB100_REG_TEMP3_CONFIG 0x0252 | |
83 | ||
84 | ||
85 | #define ASB100_REG_CONFIG 0x40 | |
86 | #define ASB100_REG_ALARM1 0x41 | |
87 | #define ASB100_REG_ALARM2 0x42 | |
88 | #define ASB100_REG_SMIM1 0x43 | |
89 | #define ASB100_REG_SMIM2 0x44 | |
90 | #define ASB100_REG_VID_FANDIV 0x47 | |
91 | #define ASB100_REG_I2C_ADDR 0x48 | |
92 | #define ASB100_REG_CHIPID 0x49 | |
93 | #define ASB100_REG_I2C_SUBADDR 0x4a | |
94 | #define ASB100_REG_PIN 0x4b | |
95 | #define ASB100_REG_IRQ 0x4c | |
96 | #define ASB100_REG_BANK 0x4e | |
97 | #define ASB100_REG_CHIPMAN 0x4f | |
98 | ||
99 | #define ASB100_REG_WCHIPID 0x58 | |
100 | ||
101 | /* bit 7 -> enable, bits 0-3 -> duty cycle */ | |
102 | #define ASB100_REG_PWM1 0x59 | |
103 | ||
104 | /* CONVERSIONS | |
105 | Rounding and limit checking is only done on the TO_REG variants. */ | |
106 | ||
107 | /* These constants are a guess, consistent w/ w83781d */ | |
108 | #define ASB100_IN_MIN ( 0) | |
109 | #define ASB100_IN_MAX (4080) | |
110 | ||
111 | /* IN: 1/1000 V (0V to 4.08V) | |
112 | REG: 16mV/bit */ | |
113 | static u8 IN_TO_REG(unsigned val) | |
114 | { | |
115 | unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX); | |
116 | return (nval + 8) / 16; | |
117 | } | |
118 | ||
119 | static unsigned IN_FROM_REG(u8 reg) | |
120 | { | |
121 | return reg * 16; | |
122 | } | |
123 | ||
124 | static u8 FAN_TO_REG(long rpm, int div) | |
125 | { | |
126 | if (rpm == -1) | |
127 | return 0; | |
128 | if (rpm == 0) | |
129 | return 255; | |
130 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
131 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
132 | } | |
133 | ||
134 | static int FAN_FROM_REG(u8 val, int div) | |
135 | { | |
136 | return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div); | |
137 | } | |
138 | ||
139 | /* These constants are a guess, consistent w/ w83781d */ | |
140 | #define ASB100_TEMP_MIN (-128000) | |
141 | #define ASB100_TEMP_MAX ( 127000) | |
142 | ||
143 | /* TEMP: 0.001C/bit (-128C to +127C) | |
144 | REG: 1C/bit, two's complement */ | |
145 | static u8 TEMP_TO_REG(int temp) | |
146 | { | |
147 | int ntemp = SENSORS_LIMIT(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX); | |
148 | ntemp += (ntemp<0 ? -500 : 500); | |
149 | return (u8)(ntemp / 1000); | |
150 | } | |
151 | ||
152 | static int TEMP_FROM_REG(u8 reg) | |
153 | { | |
154 | return (s8)reg * 1000; | |
155 | } | |
156 | ||
157 | /* PWM: 0 - 255 per sensors documentation | |
158 | REG: (6.25% duty cycle per bit) */ | |
159 | static u8 ASB100_PWM_TO_REG(int pwm) | |
160 | { | |
161 | pwm = SENSORS_LIMIT(pwm, 0, 255); | |
162 | return (u8)(pwm / 16); | |
163 | } | |
164 | ||
165 | static int ASB100_PWM_FROM_REG(u8 reg) | |
166 | { | |
167 | return reg * 16; | |
168 | } | |
169 | ||
1da177e4 LT |
170 | #define DIV_FROM_REG(val) (1 << (val)) |
171 | ||
172 | /* FAN DIV: 1, 2, 4, or 8 (defaults to 2) | |
173 | REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ | |
174 | static u8 DIV_TO_REG(long val) | |
175 | { | |
176 | return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1; | |
177 | } | |
178 | ||
179 | /* For each registered client, we need to keep some data in memory. That | |
180 | data is pointed to by client->data. The structure itself is | |
181 | dynamically allocated, at the same time the client itself is allocated. */ | |
182 | struct asb100_data { | |
183 | struct i2c_client client; | |
943b0830 | 184 | struct class_device *class_dev; |
1da177e4 LT |
185 | struct semaphore lock; |
186 | enum chips type; | |
187 | ||
188 | struct semaphore update_lock; | |
189 | unsigned long last_updated; /* In jiffies */ | |
190 | ||
191 | /* array of 2 pointers to subclients */ | |
192 | struct i2c_client *lm75[2]; | |
193 | ||
194 | char valid; /* !=0 if following fields are valid */ | |
195 | u8 in[7]; /* Register value */ | |
196 | u8 in_max[7]; /* Register value */ | |
197 | u8 in_min[7]; /* Register value */ | |
198 | u8 fan[3]; /* Register value */ | |
199 | u8 fan_min[3]; /* Register value */ | |
200 | u16 temp[4]; /* Register value (0 and 3 are u8 only) */ | |
201 | u16 temp_max[4]; /* Register value (0 and 3 are u8 only) */ | |
202 | u16 temp_hyst[4]; /* Register value (0 and 3 are u8 only) */ | |
203 | u8 fan_div[3]; /* Register encoding, right justified */ | |
204 | u8 pwm; /* Register encoding */ | |
205 | u8 vid; /* Register encoding, combined */ | |
206 | u32 alarms; /* Register encoding, combined */ | |
207 | u8 vrm; | |
208 | }; | |
209 | ||
210 | static int asb100_read_value(struct i2c_client *client, u16 reg); | |
211 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val); | |
212 | ||
213 | static int asb100_attach_adapter(struct i2c_adapter *adapter); | |
214 | static int asb100_detect(struct i2c_adapter *adapter, int address, int kind); | |
215 | static int asb100_detach_client(struct i2c_client *client); | |
216 | static struct asb100_data *asb100_update_device(struct device *dev); | |
217 | static void asb100_init_client(struct i2c_client *client); | |
218 | ||
219 | static struct i2c_driver asb100_driver = { | |
cdaf7934 | 220 | .driver = { |
cdaf7934 LR |
221 | .name = "asb100", |
222 | }, | |
1da177e4 | 223 | .id = I2C_DRIVERID_ASB100, |
1da177e4 LT |
224 | .attach_adapter = asb100_attach_adapter, |
225 | .detach_client = asb100_detach_client, | |
226 | }; | |
227 | ||
228 | /* 7 Voltages */ | |
229 | #define show_in_reg(reg) \ | |
230 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
231 | { \ | |
232 | struct asb100_data *data = asb100_update_device(dev); \ | |
233 | return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \ | |
234 | } | |
235 | ||
236 | show_in_reg(in) | |
237 | show_in_reg(in_min) | |
238 | show_in_reg(in_max) | |
239 | ||
240 | #define set_in_reg(REG, reg) \ | |
241 | static ssize_t set_in_##reg(struct device *dev, const char *buf, \ | |
242 | size_t count, int nr) \ | |
243 | { \ | |
244 | struct i2c_client *client = to_i2c_client(dev); \ | |
245 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
246 | unsigned long val = simple_strtoul(buf, NULL, 10); \ | |
247 | \ | |
248 | down(&data->update_lock); \ | |
249 | data->in_##reg[nr] = IN_TO_REG(val); \ | |
250 | asb100_write_value(client, ASB100_REG_IN_##REG(nr), \ | |
251 | data->in_##reg[nr]); \ | |
252 | up(&data->update_lock); \ | |
253 | return count; \ | |
254 | } | |
255 | ||
256 | set_in_reg(MIN, min) | |
257 | set_in_reg(MAX, max) | |
258 | ||
259 | #define sysfs_in(offset) \ | |
260 | static ssize_t \ | |
30f74292 | 261 | show_in##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
262 | { \ |
263 | return show_in(dev, buf, offset); \ | |
264 | } \ | |
265 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, \ | |
266 | show_in##offset, NULL); \ | |
267 | static ssize_t \ | |
30f74292 | 268 | show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
269 | { \ |
270 | return show_in_min(dev, buf, offset); \ | |
271 | } \ | |
272 | static ssize_t \ | |
30f74292 | 273 | show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
274 | { \ |
275 | return show_in_max(dev, buf, offset); \ | |
276 | } \ | |
30f74292 | 277 | static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
278 | const char *buf, size_t count) \ |
279 | { \ | |
280 | return set_in_min(dev, buf, count, offset); \ | |
281 | } \ | |
30f74292 | 282 | static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
283 | const char *buf, size_t count) \ |
284 | { \ | |
285 | return set_in_max(dev, buf, count, offset); \ | |
286 | } \ | |
287 | static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
288 | show_in##offset##_min, set_in##offset##_min); \ | |
289 | static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
290 | show_in##offset##_max, set_in##offset##_max); | |
291 | ||
292 | sysfs_in(0); | |
293 | sysfs_in(1); | |
294 | sysfs_in(2); | |
295 | sysfs_in(3); | |
296 | sysfs_in(4); | |
297 | sysfs_in(5); | |
298 | sysfs_in(6); | |
299 | ||
300 | #define device_create_file_in(client, offset) do { \ | |
301 | device_create_file(&client->dev, &dev_attr_in##offset##_input); \ | |
302 | device_create_file(&client->dev, &dev_attr_in##offset##_min); \ | |
303 | device_create_file(&client->dev, &dev_attr_in##offset##_max); \ | |
304 | } while (0) | |
305 | ||
306 | /* 3 Fans */ | |
307 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
308 | { | |
309 | struct asb100_data *data = asb100_update_device(dev); | |
310 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], | |
311 | DIV_FROM_REG(data->fan_div[nr]))); | |
312 | } | |
313 | ||
314 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
315 | { | |
316 | struct asb100_data *data = asb100_update_device(dev); | |
317 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], | |
318 | DIV_FROM_REG(data->fan_div[nr]))); | |
319 | } | |
320 | ||
321 | static ssize_t show_fan_div(struct device *dev, char *buf, int nr) | |
322 | { | |
323 | struct asb100_data *data = asb100_update_device(dev); | |
324 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
325 | } | |
326 | ||
327 | static ssize_t set_fan_min(struct device *dev, const char *buf, | |
328 | size_t count, int nr) | |
329 | { | |
330 | struct i2c_client *client = to_i2c_client(dev); | |
331 | struct asb100_data *data = i2c_get_clientdata(client); | |
332 | u32 val = simple_strtoul(buf, NULL, 10); | |
333 | ||
334 | down(&data->update_lock); | |
335 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); | |
336 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
337 | up(&data->update_lock); | |
338 | return count; | |
339 | } | |
340 | ||
341 | /* Note: we save and restore the fan minimum here, because its value is | |
342 | determined in part by the fan divisor. This follows the principle of | |
343 | least suprise; the user doesn't expect the fan minimum to change just | |
344 | because the divisor changed. */ | |
345 | static ssize_t set_fan_div(struct device *dev, const char *buf, | |
346 | size_t count, int nr) | |
347 | { | |
348 | struct i2c_client *client = to_i2c_client(dev); | |
349 | struct asb100_data *data = i2c_get_clientdata(client); | |
350 | unsigned long min; | |
351 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
352 | int reg; | |
353 | ||
354 | down(&data->update_lock); | |
355 | ||
356 | min = FAN_FROM_REG(data->fan_min[nr], | |
357 | DIV_FROM_REG(data->fan_div[nr])); | |
358 | data->fan_div[nr] = DIV_TO_REG(val); | |
359 | ||
360 | switch(nr) { | |
361 | case 0: /* fan 1 */ | |
362 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
363 | reg = (reg & 0xcf) | (data->fan_div[0] << 4); | |
364 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
365 | break; | |
366 | ||
367 | case 1: /* fan 2 */ | |
368 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
369 | reg = (reg & 0x3f) | (data->fan_div[1] << 6); | |
370 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
371 | break; | |
372 | ||
373 | case 2: /* fan 3 */ | |
374 | reg = asb100_read_value(client, ASB100_REG_PIN); | |
375 | reg = (reg & 0x3f) | (data->fan_div[2] << 6); | |
376 | asb100_write_value(client, ASB100_REG_PIN, reg); | |
377 | break; | |
378 | } | |
379 | ||
380 | data->fan_min[nr] = | |
381 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
382 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
383 | ||
384 | up(&data->update_lock); | |
385 | ||
386 | return count; | |
387 | } | |
388 | ||
389 | #define sysfs_fan(offset) \ | |
30f74292 | 390 | static ssize_t show_fan##offset(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
391 | { \ |
392 | return show_fan(dev, buf, offset - 1); \ | |
393 | } \ | |
30f74292 | 394 | static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
395 | { \ |
396 | return show_fan_min(dev, buf, offset - 1); \ | |
397 | } \ | |
30f74292 | 398 | static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
399 | { \ |
400 | return show_fan_div(dev, buf, offset - 1); \ | |
401 | } \ | |
30f74292 | 402 | static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
403 | size_t count) \ |
404 | { \ | |
405 | return set_fan_min(dev, buf, count, offset - 1); \ | |
406 | } \ | |
30f74292 | 407 | static ssize_t set_fan##offset##_div(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
408 | size_t count) \ |
409 | { \ | |
410 | return set_fan_div(dev, buf, count, offset - 1); \ | |
411 | } \ | |
412 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
413 | show_fan##offset, NULL); \ | |
414 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
415 | show_fan##offset##_min, set_fan##offset##_min); \ | |
416 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
417 | show_fan##offset##_div, set_fan##offset##_div); | |
418 | ||
419 | sysfs_fan(1); | |
420 | sysfs_fan(2); | |
421 | sysfs_fan(3); | |
422 | ||
423 | #define device_create_file_fan(client, offset) do { \ | |
424 | device_create_file(&client->dev, &dev_attr_fan##offset##_input); \ | |
425 | device_create_file(&client->dev, &dev_attr_fan##offset##_min); \ | |
426 | device_create_file(&client->dev, &dev_attr_fan##offset##_div); \ | |
427 | } while (0) | |
428 | ||
429 | /* 4 Temp. Sensors */ | |
430 | static int sprintf_temp_from_reg(u16 reg, char *buf, int nr) | |
431 | { | |
432 | int ret = 0; | |
433 | ||
434 | switch (nr) { | |
435 | case 1: case 2: | |
436 | ret = sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(reg)); | |
437 | break; | |
438 | case 0: case 3: default: | |
439 | ret = sprintf(buf, "%d\n", TEMP_FROM_REG(reg)); | |
440 | break; | |
441 | } | |
442 | return ret; | |
443 | } | |
444 | ||
445 | #define show_temp_reg(reg) \ | |
446 | static ssize_t show_##reg(struct device *dev, char *buf, int nr) \ | |
447 | { \ | |
448 | struct asb100_data *data = asb100_update_device(dev); \ | |
449 | return sprintf_temp_from_reg(data->reg[nr], buf, nr); \ | |
450 | } | |
451 | ||
452 | show_temp_reg(temp); | |
453 | show_temp_reg(temp_max); | |
454 | show_temp_reg(temp_hyst); | |
455 | ||
456 | #define set_temp_reg(REG, reg) \ | |
457 | static ssize_t set_##reg(struct device *dev, const char *buf, \ | |
458 | size_t count, int nr) \ | |
459 | { \ | |
460 | struct i2c_client *client = to_i2c_client(dev); \ | |
461 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
462 | unsigned long val = simple_strtoul(buf, NULL, 10); \ | |
463 | \ | |
464 | down(&data->update_lock); \ | |
465 | switch (nr) { \ | |
466 | case 1: case 2: \ | |
467 | data->reg[nr] = LM75_TEMP_TO_REG(val); \ | |
468 | break; \ | |
469 | case 0: case 3: default: \ | |
470 | data->reg[nr] = TEMP_TO_REG(val); \ | |
471 | break; \ | |
472 | } \ | |
473 | asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \ | |
474 | data->reg[nr]); \ | |
475 | up(&data->update_lock); \ | |
476 | return count; \ | |
477 | } | |
478 | ||
479 | set_temp_reg(MAX, temp_max); | |
480 | set_temp_reg(HYST, temp_hyst); | |
481 | ||
482 | #define sysfs_temp(num) \ | |
30f74292 | 483 | static ssize_t show_temp##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
484 | { \ |
485 | return show_temp(dev, buf, num-1); \ | |
486 | } \ | |
487 | static DEVICE_ATTR(temp##num##_input, S_IRUGO, show_temp##num, NULL); \ | |
30f74292 | 488 | static ssize_t show_temp_max##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
489 | { \ |
490 | return show_temp_max(dev, buf, num-1); \ | |
491 | } \ | |
30f74292 | 492 | static ssize_t set_temp_max##num(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
493 | size_t count) \ |
494 | { \ | |
495 | return set_temp_max(dev, buf, count, num-1); \ | |
496 | } \ | |
497 | static DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \ | |
498 | show_temp_max##num, set_temp_max##num); \ | |
30f74292 | 499 | static ssize_t show_temp_hyst##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
500 | { \ |
501 | return show_temp_hyst(dev, buf, num-1); \ | |
502 | } \ | |
30f74292 | 503 | static ssize_t set_temp_hyst##num(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
504 | size_t count) \ |
505 | { \ | |
506 | return set_temp_hyst(dev, buf, count, num-1); \ | |
507 | } \ | |
508 | static DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \ | |
509 | show_temp_hyst##num, set_temp_hyst##num); | |
510 | ||
511 | sysfs_temp(1); | |
512 | sysfs_temp(2); | |
513 | sysfs_temp(3); | |
514 | sysfs_temp(4); | |
515 | ||
516 | /* VID */ | |
517 | #define device_create_file_temp(client, num) do { \ | |
518 | device_create_file(&client->dev, &dev_attr_temp##num##_input); \ | |
519 | device_create_file(&client->dev, &dev_attr_temp##num##_max); \ | |
520 | device_create_file(&client->dev, &dev_attr_temp##num##_max_hyst); \ | |
521 | } while (0) | |
522 | ||
30f74292 | 523 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
524 | { |
525 | struct asb100_data *data = asb100_update_device(dev); | |
526 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
527 | } | |
528 | ||
529 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); | |
530 | #define device_create_file_vid(client) \ | |
531 | device_create_file(&client->dev, &dev_attr_cpu0_vid) | |
532 | ||
533 | /* VRM */ | |
30f74292 | 534 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
535 | { |
536 | struct asb100_data *data = asb100_update_device(dev); | |
537 | return sprintf(buf, "%d\n", data->vrm); | |
538 | } | |
539 | ||
30f74292 | 540 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
541 | { |
542 | struct i2c_client *client = to_i2c_client(dev); | |
543 | struct asb100_data *data = i2c_get_clientdata(client); | |
544 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
545 | data->vrm = val; | |
546 | return count; | |
547 | } | |
548 | ||
549 | /* Alarms */ | |
550 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); | |
551 | #define device_create_file_vrm(client) \ | |
552 | device_create_file(&client->dev, &dev_attr_vrm); | |
553 | ||
30f74292 | 554 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
555 | { |
556 | struct asb100_data *data = asb100_update_device(dev); | |
68188ba7 | 557 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
558 | } |
559 | ||
560 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
561 | #define device_create_file_alarms(client) \ | |
562 | device_create_file(&client->dev, &dev_attr_alarms) | |
563 | ||
564 | /* 1 PWM */ | |
30f74292 | 565 | static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
566 | { |
567 | struct asb100_data *data = asb100_update_device(dev); | |
568 | return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f)); | |
569 | } | |
570 | ||
30f74292 | 571 | static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
572 | { |
573 | struct i2c_client *client = to_i2c_client(dev); | |
574 | struct asb100_data *data = i2c_get_clientdata(client); | |
575 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
576 | ||
577 | down(&data->update_lock); | |
578 | data->pwm &= 0x80; /* keep the enable bit */ | |
579 | data->pwm |= (0x0f & ASB100_PWM_TO_REG(val)); | |
580 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
581 | up(&data->update_lock); | |
582 | return count; | |
583 | } | |
584 | ||
30f74292 | 585 | static ssize_t show_pwm_enable1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
586 | { |
587 | struct asb100_data *data = asb100_update_device(dev); | |
588 | return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0); | |
589 | } | |
590 | ||
30f74292 | 591 | static ssize_t set_pwm_enable1(struct device *dev, struct device_attribute *attr, const char *buf, |
1da177e4 LT |
592 | size_t count) |
593 | { | |
594 | struct i2c_client *client = to_i2c_client(dev); | |
595 | struct asb100_data *data = i2c_get_clientdata(client); | |
596 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
597 | ||
598 | down(&data->update_lock); | |
599 | data->pwm &= 0x0f; /* keep the duty cycle bits */ | |
600 | data->pwm |= (val ? 0x80 : 0x00); | |
601 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
602 | up(&data->update_lock); | |
603 | return count; | |
604 | } | |
605 | ||
606 | static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm1, set_pwm1); | |
607 | static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, | |
608 | show_pwm_enable1, set_pwm_enable1); | |
609 | #define device_create_file_pwm1(client) do { \ | |
610 | device_create_file(&new_client->dev, &dev_attr_pwm1); \ | |
611 | device_create_file(&new_client->dev, &dev_attr_pwm1_enable); \ | |
612 | } while (0) | |
613 | ||
614 | /* This function is called when: | |
615 | asb100_driver is inserted (when this module is loaded), for each | |
616 | available adapter | |
617 | when a new adapter is inserted (and asb100_driver is still present) | |
618 | */ | |
619 | static int asb100_attach_adapter(struct i2c_adapter *adapter) | |
620 | { | |
621 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
622 | return 0; | |
2ed2dc3c | 623 | return i2c_probe(adapter, &addr_data, asb100_detect); |
1da177e4 LT |
624 | } |
625 | ||
626 | static int asb100_detect_subclients(struct i2c_adapter *adapter, int address, | |
627 | int kind, struct i2c_client *new_client) | |
628 | { | |
629 | int i, id, err; | |
630 | struct asb100_data *data = i2c_get_clientdata(new_client); | |
631 | ||
ba9c2e8d | 632 | data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
633 | if (!(data->lm75[0])) { |
634 | err = -ENOMEM; | |
635 | goto ERROR_SC_0; | |
636 | } | |
1da177e4 | 637 | |
ba9c2e8d | 638 | data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
639 | if (!(data->lm75[1])) { |
640 | err = -ENOMEM; | |
641 | goto ERROR_SC_1; | |
642 | } | |
1da177e4 LT |
643 | |
644 | id = i2c_adapter_id(adapter); | |
645 | ||
646 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
647 | for (i = 2; i <= 3; i++) { | |
648 | if (force_subclients[i] < 0x48 || | |
649 | force_subclients[i] > 0x4f) { | |
650 | dev_err(&new_client->dev, "invalid subclient " | |
651 | "address %d; must be 0x48-0x4f\n", | |
652 | force_subclients[i]); | |
653 | err = -ENODEV; | |
654 | goto ERROR_SC_2; | |
655 | } | |
656 | } | |
657 | asb100_write_value(new_client, ASB100_REG_I2C_SUBADDR, | |
658 | (force_subclients[2] & 0x07) | | |
659 | ((force_subclients[3] & 0x07) <<4)); | |
660 | data->lm75[0]->addr = force_subclients[2]; | |
661 | data->lm75[1]->addr = force_subclients[3]; | |
662 | } else { | |
663 | int val = asb100_read_value(new_client, ASB100_REG_I2C_SUBADDR); | |
664 | data->lm75[0]->addr = 0x48 + (val & 0x07); | |
665 | data->lm75[1]->addr = 0x48 + ((val >> 4) & 0x07); | |
666 | } | |
667 | ||
668 | if(data->lm75[0]->addr == data->lm75[1]->addr) { | |
669 | dev_err(&new_client->dev, "duplicate addresses 0x%x " | |
670 | "for subclients\n", data->lm75[0]->addr); | |
671 | err = -ENODEV; | |
672 | goto ERROR_SC_2; | |
673 | } | |
674 | ||
675 | for (i = 0; i <= 1; i++) { | |
676 | i2c_set_clientdata(data->lm75[i], NULL); | |
677 | data->lm75[i]->adapter = adapter; | |
678 | data->lm75[i]->driver = &asb100_driver; | |
679 | data->lm75[i]->flags = 0; | |
680 | strlcpy(data->lm75[i]->name, "asb100 subclient", I2C_NAME_SIZE); | |
681 | } | |
682 | ||
683 | if ((err = i2c_attach_client(data->lm75[0]))) { | |
684 | dev_err(&new_client->dev, "subclient %d registration " | |
685 | "at address 0x%x failed.\n", i, data->lm75[0]->addr); | |
686 | goto ERROR_SC_2; | |
687 | } | |
688 | ||
689 | if ((err = i2c_attach_client(data->lm75[1]))) { | |
690 | dev_err(&new_client->dev, "subclient %d registration " | |
691 | "at address 0x%x failed.\n", i, data->lm75[1]->addr); | |
692 | goto ERROR_SC_3; | |
693 | } | |
694 | ||
695 | return 0; | |
696 | ||
697 | /* Undo inits in case of errors */ | |
698 | ERROR_SC_3: | |
699 | i2c_detach_client(data->lm75[0]); | |
700 | ERROR_SC_2: | |
701 | kfree(data->lm75[1]); | |
702 | ERROR_SC_1: | |
703 | kfree(data->lm75[0]); | |
704 | ERROR_SC_0: | |
705 | return err; | |
706 | } | |
707 | ||
708 | static int asb100_detect(struct i2c_adapter *adapter, int address, int kind) | |
709 | { | |
710 | int err; | |
711 | struct i2c_client *new_client; | |
712 | struct asb100_data *data; | |
713 | ||
1da177e4 LT |
714 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
715 | pr_debug("asb100.o: detect failed, " | |
716 | "smbus byte data not supported!\n"); | |
717 | err = -ENODEV; | |
718 | goto ERROR0; | |
719 | } | |
720 | ||
721 | /* OK. For now, we presume we have a valid client. We now create the | |
722 | client structure, even though we cannot fill it completely yet. | |
723 | But it allows us to access asb100_{read,write}_value. */ | |
724 | ||
ba9c2e8d DS |
725 | if (!(data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL))) { |
726 | pr_debug("asb100.o: detect failed, kzalloc failed!\n"); | |
1da177e4 LT |
727 | err = -ENOMEM; |
728 | goto ERROR0; | |
729 | } | |
1da177e4 LT |
730 | |
731 | new_client = &data->client; | |
732 | init_MUTEX(&data->lock); | |
733 | i2c_set_clientdata(new_client, data); | |
734 | new_client->addr = address; | |
735 | new_client->adapter = adapter; | |
736 | new_client->driver = &asb100_driver; | |
737 | new_client->flags = 0; | |
738 | ||
739 | /* Now, we do the remaining detection. */ | |
740 | ||
741 | /* The chip may be stuck in some other bank than bank 0. This may | |
742 | make reading other information impossible. Specify a force=... or | |
743 | force_*=... parameter, and the chip will be reset to the right | |
744 | bank. */ | |
745 | if (kind < 0) { | |
746 | ||
747 | int val1 = asb100_read_value(new_client, ASB100_REG_BANK); | |
748 | int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN); | |
749 | ||
750 | /* If we're in bank 0 */ | |
751 | if ( (!(val1 & 0x07)) && | |
752 | /* Check for ASB100 ID (low byte) */ | |
753 | ( ((!(val1 & 0x80)) && (val2 != 0x94)) || | |
754 | /* Check for ASB100 ID (high byte ) */ | |
755 | ((val1 & 0x80) && (val2 != 0x06)) ) ) { | |
756 | pr_debug("asb100.o: detect failed, " | |
757 | "bad chip id 0x%02x!\n", val2); | |
758 | err = -ENODEV; | |
759 | goto ERROR1; | |
760 | } | |
761 | ||
762 | } /* kind < 0 */ | |
763 | ||
764 | /* We have either had a force parameter, or we have already detected | |
765 | Winbond. Put it now into bank 0 and Vendor ID High Byte */ | |
766 | asb100_write_value(new_client, ASB100_REG_BANK, | |
767 | (asb100_read_value(new_client, ASB100_REG_BANK) & 0x78) | 0x80); | |
768 | ||
769 | /* Determine the chip type. */ | |
770 | if (kind <= 0) { | |
771 | int val1 = asb100_read_value(new_client, ASB100_REG_WCHIPID); | |
772 | int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN); | |
773 | ||
774 | if ((val1 == 0x31) && (val2 == 0x06)) | |
775 | kind = asb100; | |
776 | else { | |
777 | if (kind == 0) | |
778 | dev_warn(&new_client->dev, "ignoring " | |
779 | "'force' parameter for unknown chip " | |
780 | "at adapter %d, address 0x%02x.\n", | |
781 | i2c_adapter_id(adapter), address); | |
782 | err = -ENODEV; | |
783 | goto ERROR1; | |
784 | } | |
785 | } | |
786 | ||
787 | /* Fill in remaining client fields and put it into the global list */ | |
788 | strlcpy(new_client->name, "asb100", I2C_NAME_SIZE); | |
789 | data->type = kind; | |
790 | ||
791 | data->valid = 0; | |
792 | init_MUTEX(&data->update_lock); | |
793 | ||
794 | /* Tell the I2C layer a new client has arrived */ | |
795 | if ((err = i2c_attach_client(new_client))) | |
796 | goto ERROR1; | |
797 | ||
798 | /* Attach secondary lm75 clients */ | |
799 | if ((err = asb100_detect_subclients(adapter, address, kind, | |
800 | new_client))) | |
801 | goto ERROR2; | |
802 | ||
803 | /* Initialize the chip */ | |
804 | asb100_init_client(new_client); | |
805 | ||
806 | /* A few vars need to be filled upon startup */ | |
807 | data->fan_min[0] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(0)); | |
808 | data->fan_min[1] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(1)); | |
809 | data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2)); | |
810 | ||
811 | /* Register sysfs hooks */ | |
943b0830 MH |
812 | data->class_dev = hwmon_device_register(&new_client->dev); |
813 | if (IS_ERR(data->class_dev)) { | |
814 | err = PTR_ERR(data->class_dev); | |
815 | goto ERROR3; | |
816 | } | |
817 | ||
1da177e4 LT |
818 | device_create_file_in(new_client, 0); |
819 | device_create_file_in(new_client, 1); | |
820 | device_create_file_in(new_client, 2); | |
821 | device_create_file_in(new_client, 3); | |
822 | device_create_file_in(new_client, 4); | |
823 | device_create_file_in(new_client, 5); | |
824 | device_create_file_in(new_client, 6); | |
825 | ||
826 | device_create_file_fan(new_client, 1); | |
827 | device_create_file_fan(new_client, 2); | |
828 | device_create_file_fan(new_client, 3); | |
829 | ||
830 | device_create_file_temp(new_client, 1); | |
831 | device_create_file_temp(new_client, 2); | |
832 | device_create_file_temp(new_client, 3); | |
833 | device_create_file_temp(new_client, 4); | |
834 | ||
835 | device_create_file_vid(new_client); | |
836 | device_create_file_vrm(new_client); | |
837 | ||
838 | device_create_file_alarms(new_client); | |
839 | ||
840 | device_create_file_pwm1(new_client); | |
841 | ||
842 | return 0; | |
843 | ||
943b0830 MH |
844 | ERROR3: |
845 | i2c_detach_client(data->lm75[1]); | |
846 | i2c_detach_client(data->lm75[0]); | |
847 | kfree(data->lm75[1]); | |
848 | kfree(data->lm75[0]); | |
1da177e4 LT |
849 | ERROR2: |
850 | i2c_detach_client(new_client); | |
851 | ERROR1: | |
852 | kfree(data); | |
853 | ERROR0: | |
854 | return err; | |
855 | } | |
856 | ||
857 | static int asb100_detach_client(struct i2c_client *client) | |
858 | { | |
943b0830 | 859 | struct asb100_data *data = i2c_get_clientdata(client); |
1da177e4 LT |
860 | int err; |
861 | ||
943b0830 MH |
862 | /* main client */ |
863 | if (data) | |
864 | hwmon_device_unregister(data->class_dev); | |
865 | ||
7bef5594 | 866 | if ((err = i2c_detach_client(client))) |
1da177e4 | 867 | return err; |
1da177e4 | 868 | |
943b0830 MH |
869 | /* main client */ |
870 | if (data) | |
871 | kfree(data); | |
872 | ||
873 | /* subclient */ | |
874 | else | |
1da177e4 | 875 | kfree(client); |
1da177e4 LT |
876 | |
877 | return 0; | |
878 | } | |
879 | ||
880 | /* The SMBus locks itself, usually, but nothing may access the chip between | |
881 | bank switches. */ | |
882 | static int asb100_read_value(struct i2c_client *client, u16 reg) | |
883 | { | |
884 | struct asb100_data *data = i2c_get_clientdata(client); | |
885 | struct i2c_client *cl; | |
886 | int res, bank; | |
887 | ||
888 | down(&data->lock); | |
889 | ||
890 | bank = (reg >> 8) & 0x0f; | |
891 | if (bank > 2) | |
892 | /* switch banks */ | |
893 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
894 | ||
895 | if (bank == 0 || bank > 2) { | |
896 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
897 | } else { | |
898 | /* switch to subclient */ | |
899 | cl = data->lm75[bank - 1]; | |
900 | ||
901 | /* convert from ISA to LM75 I2C addresses */ | |
902 | switch (reg & 0xff) { | |
903 | case 0x50: /* TEMP */ | |
904 | res = swab16(i2c_smbus_read_word_data (cl, 0)); | |
905 | break; | |
906 | case 0x52: /* CONFIG */ | |
907 | res = i2c_smbus_read_byte_data(cl, 1); | |
908 | break; | |
909 | case 0x53: /* HYST */ | |
910 | res = swab16(i2c_smbus_read_word_data (cl, 2)); | |
911 | break; | |
912 | case 0x55: /* MAX */ | |
913 | default: | |
914 | res = swab16(i2c_smbus_read_word_data (cl, 3)); | |
915 | break; | |
916 | } | |
917 | } | |
918 | ||
919 | if (bank > 2) | |
920 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
921 | ||
922 | up(&data->lock); | |
923 | ||
924 | return res; | |
925 | } | |
926 | ||
927 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value) | |
928 | { | |
929 | struct asb100_data *data = i2c_get_clientdata(client); | |
930 | struct i2c_client *cl; | |
931 | int bank; | |
932 | ||
933 | down(&data->lock); | |
934 | ||
935 | bank = (reg >> 8) & 0x0f; | |
936 | if (bank > 2) | |
937 | /* switch banks */ | |
938 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
939 | ||
940 | if (bank == 0 || bank > 2) { | |
941 | i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff); | |
942 | } else { | |
943 | /* switch to subclient */ | |
944 | cl = data->lm75[bank - 1]; | |
945 | ||
946 | /* convert from ISA to LM75 I2C addresses */ | |
947 | switch (reg & 0xff) { | |
948 | case 0x52: /* CONFIG */ | |
949 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
950 | break; | |
951 | case 0x53: /* HYST */ | |
952 | i2c_smbus_write_word_data(cl, 2, swab16(value)); | |
953 | break; | |
954 | case 0x55: /* MAX */ | |
955 | i2c_smbus_write_word_data(cl, 3, swab16(value)); | |
956 | break; | |
957 | } | |
958 | } | |
959 | ||
960 | if (bank > 2) | |
961 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
962 | ||
963 | up(&data->lock); | |
964 | } | |
965 | ||
966 | static void asb100_init_client(struct i2c_client *client) | |
967 | { | |
968 | struct asb100_data *data = i2c_get_clientdata(client); | |
969 | int vid = 0; | |
970 | ||
971 | vid = asb100_read_value(client, ASB100_REG_VID_FANDIV) & 0x0f; | |
972 | vid |= (asb100_read_value(client, ASB100_REG_CHIPID) & 0x01) << 4; | |
303760b4 | 973 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
974 | vid = vid_from_reg(vid, data->vrm); |
975 | ||
976 | /* Start monitoring */ | |
977 | asb100_write_value(client, ASB100_REG_CONFIG, | |
978 | (asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01); | |
979 | } | |
980 | ||
981 | static struct asb100_data *asb100_update_device(struct device *dev) | |
982 | { | |
983 | struct i2c_client *client = to_i2c_client(dev); | |
984 | struct asb100_data *data = i2c_get_clientdata(client); | |
985 | int i; | |
986 | ||
987 | down(&data->update_lock); | |
988 | ||
989 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
990 | || !data->valid) { | |
991 | ||
992 | dev_dbg(&client->dev, "starting device update...\n"); | |
993 | ||
994 | /* 7 voltage inputs */ | |
995 | for (i = 0; i < 7; i++) { | |
996 | data->in[i] = asb100_read_value(client, | |
997 | ASB100_REG_IN(i)); | |
998 | data->in_min[i] = asb100_read_value(client, | |
999 | ASB100_REG_IN_MIN(i)); | |
1000 | data->in_max[i] = asb100_read_value(client, | |
1001 | ASB100_REG_IN_MAX(i)); | |
1002 | } | |
1003 | ||
1004 | /* 3 fan inputs */ | |
1005 | for (i = 0; i < 3; i++) { | |
1006 | data->fan[i] = asb100_read_value(client, | |
1007 | ASB100_REG_FAN(i)); | |
1008 | data->fan_min[i] = asb100_read_value(client, | |
1009 | ASB100_REG_FAN_MIN(i)); | |
1010 | } | |
1011 | ||
1012 | /* 4 temperature inputs */ | |
1013 | for (i = 1; i <= 4; i++) { | |
1014 | data->temp[i-1] = asb100_read_value(client, | |
1015 | ASB100_REG_TEMP(i)); | |
1016 | data->temp_max[i-1] = asb100_read_value(client, | |
1017 | ASB100_REG_TEMP_MAX(i)); | |
1018 | data->temp_hyst[i-1] = asb100_read_value(client, | |
1019 | ASB100_REG_TEMP_HYST(i)); | |
1020 | } | |
1021 | ||
1022 | /* VID and fan divisors */ | |
1023 | i = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
1024 | data->vid = i & 0x0f; | |
1025 | data->vid |= (asb100_read_value(client, | |
1026 | ASB100_REG_CHIPID) & 0x01) << 4; | |
1027 | data->fan_div[0] = (i >> 4) & 0x03; | |
1028 | data->fan_div[1] = (i >> 6) & 0x03; | |
1029 | data->fan_div[2] = (asb100_read_value(client, | |
1030 | ASB100_REG_PIN) >> 6) & 0x03; | |
1031 | ||
1032 | /* PWM */ | |
1033 | data->pwm = asb100_read_value(client, ASB100_REG_PWM1); | |
1034 | ||
1035 | /* alarms */ | |
1036 | data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) + | |
1037 | (asb100_read_value(client, ASB100_REG_ALARM2) << 8); | |
1038 | ||
1039 | data->last_updated = jiffies; | |
1040 | data->valid = 1; | |
1041 | ||
1042 | dev_dbg(&client->dev, "... device update complete\n"); | |
1043 | } | |
1044 | ||
1045 | up(&data->update_lock); | |
1046 | ||
1047 | return data; | |
1048 | } | |
1049 | ||
1050 | static int __init asb100_init(void) | |
1051 | { | |
1052 | return i2c_add_driver(&asb100_driver); | |
1053 | } | |
1054 | ||
1055 | static void __exit asb100_exit(void) | |
1056 | { | |
1057 | i2c_del_driver(&asb100_driver); | |
1058 | } | |
1059 | ||
1060 | MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>"); | |
1061 | MODULE_DESCRIPTION("ASB100 Bach driver"); | |
1062 | MODULE_LICENSE("GPL"); | |
1063 | ||
1064 | module_init(asb100_init); | |
1065 | module_exit(asb100_exit); | |
1066 |