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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 = { | |
220 | .owner = THIS_MODULE, | |
221 | .name = "asb100", | |
222 | .id = I2C_DRIVERID_ASB100, | |
1da177e4 LT |
223 | .attach_adapter = asb100_attach_adapter, |
224 | .detach_client = asb100_detach_client, | |
225 | }; | |
226 | ||
227 | /* 7 Voltages */ | |
228 | #define show_in_reg(reg) \ | |
229 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
230 | { \ | |
231 | struct asb100_data *data = asb100_update_device(dev); \ | |
232 | return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \ | |
233 | } | |
234 | ||
235 | show_in_reg(in) | |
236 | show_in_reg(in_min) | |
237 | show_in_reg(in_max) | |
238 | ||
239 | #define set_in_reg(REG, reg) \ | |
240 | static ssize_t set_in_##reg(struct device *dev, const char *buf, \ | |
241 | size_t count, int nr) \ | |
242 | { \ | |
243 | struct i2c_client *client = to_i2c_client(dev); \ | |
244 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
245 | unsigned long val = simple_strtoul(buf, NULL, 10); \ | |
246 | \ | |
247 | down(&data->update_lock); \ | |
248 | data->in_##reg[nr] = IN_TO_REG(val); \ | |
249 | asb100_write_value(client, ASB100_REG_IN_##REG(nr), \ | |
250 | data->in_##reg[nr]); \ | |
251 | up(&data->update_lock); \ | |
252 | return count; \ | |
253 | } | |
254 | ||
255 | set_in_reg(MIN, min) | |
256 | set_in_reg(MAX, max) | |
257 | ||
258 | #define sysfs_in(offset) \ | |
259 | static ssize_t \ | |
30f74292 | 260 | show_in##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
261 | { \ |
262 | return show_in(dev, buf, offset); \ | |
263 | } \ | |
264 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, \ | |
265 | show_in##offset, NULL); \ | |
266 | static ssize_t \ | |
30f74292 | 267 | show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
268 | { \ |
269 | return show_in_min(dev, buf, offset); \ | |
270 | } \ | |
271 | static ssize_t \ | |
30f74292 | 272 | show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
273 | { \ |
274 | return show_in_max(dev, buf, offset); \ | |
275 | } \ | |
30f74292 | 276 | static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
277 | const char *buf, size_t count) \ |
278 | { \ | |
279 | return set_in_min(dev, buf, count, offset); \ | |
280 | } \ | |
30f74292 | 281 | static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
282 | const char *buf, size_t count) \ |
283 | { \ | |
284 | return set_in_max(dev, buf, count, offset); \ | |
285 | } \ | |
286 | static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
287 | show_in##offset##_min, set_in##offset##_min); \ | |
288 | static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
289 | show_in##offset##_max, set_in##offset##_max); | |
290 | ||
291 | sysfs_in(0); | |
292 | sysfs_in(1); | |
293 | sysfs_in(2); | |
294 | sysfs_in(3); | |
295 | sysfs_in(4); | |
296 | sysfs_in(5); | |
297 | sysfs_in(6); | |
298 | ||
299 | #define device_create_file_in(client, offset) do { \ | |
300 | device_create_file(&client->dev, &dev_attr_in##offset##_input); \ | |
301 | device_create_file(&client->dev, &dev_attr_in##offset##_min); \ | |
302 | device_create_file(&client->dev, &dev_attr_in##offset##_max); \ | |
303 | } while (0) | |
304 | ||
305 | /* 3 Fans */ | |
306 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
307 | { | |
308 | struct asb100_data *data = asb100_update_device(dev); | |
309 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], | |
310 | DIV_FROM_REG(data->fan_div[nr]))); | |
311 | } | |
312 | ||
313 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
314 | { | |
315 | struct asb100_data *data = asb100_update_device(dev); | |
316 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], | |
317 | DIV_FROM_REG(data->fan_div[nr]))); | |
318 | } | |
319 | ||
320 | static ssize_t show_fan_div(struct device *dev, char *buf, int nr) | |
321 | { | |
322 | struct asb100_data *data = asb100_update_device(dev); | |
323 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
324 | } | |
325 | ||
326 | static ssize_t set_fan_min(struct device *dev, const char *buf, | |
327 | size_t count, int nr) | |
328 | { | |
329 | struct i2c_client *client = to_i2c_client(dev); | |
330 | struct asb100_data *data = i2c_get_clientdata(client); | |
331 | u32 val = simple_strtoul(buf, NULL, 10); | |
332 | ||
333 | down(&data->update_lock); | |
334 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); | |
335 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
336 | up(&data->update_lock); | |
337 | return count; | |
338 | } | |
339 | ||
340 | /* Note: we save and restore the fan minimum here, because its value is | |
341 | determined in part by the fan divisor. This follows the principle of | |
342 | least suprise; the user doesn't expect the fan minimum to change just | |
343 | because the divisor changed. */ | |
344 | static ssize_t set_fan_div(struct device *dev, const char *buf, | |
345 | size_t count, int nr) | |
346 | { | |
347 | struct i2c_client *client = to_i2c_client(dev); | |
348 | struct asb100_data *data = i2c_get_clientdata(client); | |
349 | unsigned long min; | |
350 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
351 | int reg; | |
352 | ||
353 | down(&data->update_lock); | |
354 | ||
355 | min = FAN_FROM_REG(data->fan_min[nr], | |
356 | DIV_FROM_REG(data->fan_div[nr])); | |
357 | data->fan_div[nr] = DIV_TO_REG(val); | |
358 | ||
359 | switch(nr) { | |
360 | case 0: /* fan 1 */ | |
361 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
362 | reg = (reg & 0xcf) | (data->fan_div[0] << 4); | |
363 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
364 | break; | |
365 | ||
366 | case 1: /* fan 2 */ | |
367 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
368 | reg = (reg & 0x3f) | (data->fan_div[1] << 6); | |
369 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
370 | break; | |
371 | ||
372 | case 2: /* fan 3 */ | |
373 | reg = asb100_read_value(client, ASB100_REG_PIN); | |
374 | reg = (reg & 0x3f) | (data->fan_div[2] << 6); | |
375 | asb100_write_value(client, ASB100_REG_PIN, reg); | |
376 | break; | |
377 | } | |
378 | ||
379 | data->fan_min[nr] = | |
380 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
381 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
382 | ||
383 | up(&data->update_lock); | |
384 | ||
385 | return count; | |
386 | } | |
387 | ||
388 | #define sysfs_fan(offset) \ | |
30f74292 | 389 | static ssize_t show_fan##offset(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
390 | { \ |
391 | return show_fan(dev, buf, offset - 1); \ | |
392 | } \ | |
30f74292 | 393 | static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
394 | { \ |
395 | return show_fan_min(dev, buf, offset - 1); \ | |
396 | } \ | |
30f74292 | 397 | static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
398 | { \ |
399 | return show_fan_div(dev, buf, offset - 1); \ | |
400 | } \ | |
30f74292 | 401 | static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
402 | size_t count) \ |
403 | { \ | |
404 | return set_fan_min(dev, buf, count, offset - 1); \ | |
405 | } \ | |
30f74292 | 406 | static ssize_t set_fan##offset##_div(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
407 | size_t count) \ |
408 | { \ | |
409 | return set_fan_div(dev, buf, count, offset - 1); \ | |
410 | } \ | |
411 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
412 | show_fan##offset, NULL); \ | |
413 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
414 | show_fan##offset##_min, set_fan##offset##_min); \ | |
415 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
416 | show_fan##offset##_div, set_fan##offset##_div); | |
417 | ||
418 | sysfs_fan(1); | |
419 | sysfs_fan(2); | |
420 | sysfs_fan(3); | |
421 | ||
422 | #define device_create_file_fan(client, offset) do { \ | |
423 | device_create_file(&client->dev, &dev_attr_fan##offset##_input); \ | |
424 | device_create_file(&client->dev, &dev_attr_fan##offset##_min); \ | |
425 | device_create_file(&client->dev, &dev_attr_fan##offset##_div); \ | |
426 | } while (0) | |
427 | ||
428 | /* 4 Temp. Sensors */ | |
429 | static int sprintf_temp_from_reg(u16 reg, char *buf, int nr) | |
430 | { | |
431 | int ret = 0; | |
432 | ||
433 | switch (nr) { | |
434 | case 1: case 2: | |
435 | ret = sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(reg)); | |
436 | break; | |
437 | case 0: case 3: default: | |
438 | ret = sprintf(buf, "%d\n", TEMP_FROM_REG(reg)); | |
439 | break; | |
440 | } | |
441 | return ret; | |
442 | } | |
443 | ||
444 | #define show_temp_reg(reg) \ | |
445 | static ssize_t show_##reg(struct device *dev, char *buf, int nr) \ | |
446 | { \ | |
447 | struct asb100_data *data = asb100_update_device(dev); \ | |
448 | return sprintf_temp_from_reg(data->reg[nr], buf, nr); \ | |
449 | } | |
450 | ||
451 | show_temp_reg(temp); | |
452 | show_temp_reg(temp_max); | |
453 | show_temp_reg(temp_hyst); | |
454 | ||
455 | #define set_temp_reg(REG, reg) \ | |
456 | static ssize_t set_##reg(struct device *dev, const char *buf, \ | |
457 | size_t count, int nr) \ | |
458 | { \ | |
459 | struct i2c_client *client = to_i2c_client(dev); \ | |
460 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
461 | unsigned long val = simple_strtoul(buf, NULL, 10); \ | |
462 | \ | |
463 | down(&data->update_lock); \ | |
464 | switch (nr) { \ | |
465 | case 1: case 2: \ | |
466 | data->reg[nr] = LM75_TEMP_TO_REG(val); \ | |
467 | break; \ | |
468 | case 0: case 3: default: \ | |
469 | data->reg[nr] = TEMP_TO_REG(val); \ | |
470 | break; \ | |
471 | } \ | |
472 | asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \ | |
473 | data->reg[nr]); \ | |
474 | up(&data->update_lock); \ | |
475 | return count; \ | |
476 | } | |
477 | ||
478 | set_temp_reg(MAX, temp_max); | |
479 | set_temp_reg(HYST, temp_hyst); | |
480 | ||
481 | #define sysfs_temp(num) \ | |
30f74292 | 482 | static ssize_t show_temp##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
483 | { \ |
484 | return show_temp(dev, buf, num-1); \ | |
485 | } \ | |
486 | static DEVICE_ATTR(temp##num##_input, S_IRUGO, show_temp##num, NULL); \ | |
30f74292 | 487 | static ssize_t show_temp_max##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
488 | { \ |
489 | return show_temp_max(dev, buf, num-1); \ | |
490 | } \ | |
30f74292 | 491 | static ssize_t set_temp_max##num(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
492 | size_t count) \ |
493 | { \ | |
494 | return set_temp_max(dev, buf, count, num-1); \ | |
495 | } \ | |
496 | static DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \ | |
497 | show_temp_max##num, set_temp_max##num); \ | |
30f74292 | 498 | static ssize_t show_temp_hyst##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
499 | { \ |
500 | return show_temp_hyst(dev, buf, num-1); \ | |
501 | } \ | |
30f74292 | 502 | static ssize_t set_temp_hyst##num(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
503 | size_t count) \ |
504 | { \ | |
505 | return set_temp_hyst(dev, buf, count, num-1); \ | |
506 | } \ | |
507 | static DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \ | |
508 | show_temp_hyst##num, set_temp_hyst##num); | |
509 | ||
510 | sysfs_temp(1); | |
511 | sysfs_temp(2); | |
512 | sysfs_temp(3); | |
513 | sysfs_temp(4); | |
514 | ||
515 | /* VID */ | |
516 | #define device_create_file_temp(client, num) do { \ | |
517 | device_create_file(&client->dev, &dev_attr_temp##num##_input); \ | |
518 | device_create_file(&client->dev, &dev_attr_temp##num##_max); \ | |
519 | device_create_file(&client->dev, &dev_attr_temp##num##_max_hyst); \ | |
520 | } while (0) | |
521 | ||
30f74292 | 522 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
523 | { |
524 | struct asb100_data *data = asb100_update_device(dev); | |
525 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
526 | } | |
527 | ||
528 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); | |
529 | #define device_create_file_vid(client) \ | |
530 | device_create_file(&client->dev, &dev_attr_cpu0_vid) | |
531 | ||
532 | /* VRM */ | |
30f74292 | 533 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
534 | { |
535 | struct asb100_data *data = asb100_update_device(dev); | |
536 | return sprintf(buf, "%d\n", data->vrm); | |
537 | } | |
538 | ||
30f74292 | 539 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
540 | { |
541 | struct i2c_client *client = to_i2c_client(dev); | |
542 | struct asb100_data *data = i2c_get_clientdata(client); | |
543 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
544 | data->vrm = val; | |
545 | return count; | |
546 | } | |
547 | ||
548 | /* Alarms */ | |
549 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); | |
550 | #define device_create_file_vrm(client) \ | |
551 | device_create_file(&client->dev, &dev_attr_vrm); | |
552 | ||
30f74292 | 553 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
554 | { |
555 | struct asb100_data *data = asb100_update_device(dev); | |
68188ba7 | 556 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
557 | } |
558 | ||
559 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
560 | #define device_create_file_alarms(client) \ | |
561 | device_create_file(&client->dev, &dev_attr_alarms) | |
562 | ||
563 | /* 1 PWM */ | |
30f74292 | 564 | static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
565 | { |
566 | struct asb100_data *data = asb100_update_device(dev); | |
567 | return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f)); | |
568 | } | |
569 | ||
30f74292 | 570 | static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
571 | { |
572 | struct i2c_client *client = to_i2c_client(dev); | |
573 | struct asb100_data *data = i2c_get_clientdata(client); | |
574 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
575 | ||
576 | down(&data->update_lock); | |
577 | data->pwm &= 0x80; /* keep the enable bit */ | |
578 | data->pwm |= (0x0f & ASB100_PWM_TO_REG(val)); | |
579 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
580 | up(&data->update_lock); | |
581 | return count; | |
582 | } | |
583 | ||
30f74292 | 584 | static ssize_t show_pwm_enable1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
585 | { |
586 | struct asb100_data *data = asb100_update_device(dev); | |
587 | return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0); | |
588 | } | |
589 | ||
30f74292 | 590 | static ssize_t set_pwm_enable1(struct device *dev, struct device_attribute *attr, const char *buf, |
1da177e4 LT |
591 | size_t count) |
592 | { | |
593 | struct i2c_client *client = to_i2c_client(dev); | |
594 | struct asb100_data *data = i2c_get_clientdata(client); | |
595 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
596 | ||
597 | down(&data->update_lock); | |
598 | data->pwm &= 0x0f; /* keep the duty cycle bits */ | |
599 | data->pwm |= (val ? 0x80 : 0x00); | |
600 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
601 | up(&data->update_lock); | |
602 | return count; | |
603 | } | |
604 | ||
605 | static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm1, set_pwm1); | |
606 | static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, | |
607 | show_pwm_enable1, set_pwm_enable1); | |
608 | #define device_create_file_pwm1(client) do { \ | |
609 | device_create_file(&new_client->dev, &dev_attr_pwm1); \ | |
610 | device_create_file(&new_client->dev, &dev_attr_pwm1_enable); \ | |
611 | } while (0) | |
612 | ||
613 | /* This function is called when: | |
614 | asb100_driver is inserted (when this module is loaded), for each | |
615 | available adapter | |
616 | when a new adapter is inserted (and asb100_driver is still present) | |
617 | */ | |
618 | static int asb100_attach_adapter(struct i2c_adapter *adapter) | |
619 | { | |
620 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
621 | return 0; | |
2ed2dc3c | 622 | return i2c_probe(adapter, &addr_data, asb100_detect); |
1da177e4 LT |
623 | } |
624 | ||
625 | static int asb100_detect_subclients(struct i2c_adapter *adapter, int address, | |
626 | int kind, struct i2c_client *new_client) | |
627 | { | |
628 | int i, id, err; | |
629 | struct asb100_data *data = i2c_get_clientdata(new_client); | |
630 | ||
ba9c2e8d | 631 | data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
632 | if (!(data->lm75[0])) { |
633 | err = -ENOMEM; | |
634 | goto ERROR_SC_0; | |
635 | } | |
1da177e4 | 636 | |
ba9c2e8d | 637 | data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
638 | if (!(data->lm75[1])) { |
639 | err = -ENOMEM; | |
640 | goto ERROR_SC_1; | |
641 | } | |
1da177e4 LT |
642 | |
643 | id = i2c_adapter_id(adapter); | |
644 | ||
645 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
646 | for (i = 2; i <= 3; i++) { | |
647 | if (force_subclients[i] < 0x48 || | |
648 | force_subclients[i] > 0x4f) { | |
649 | dev_err(&new_client->dev, "invalid subclient " | |
650 | "address %d; must be 0x48-0x4f\n", | |
651 | force_subclients[i]); | |
652 | err = -ENODEV; | |
653 | goto ERROR_SC_2; | |
654 | } | |
655 | } | |
656 | asb100_write_value(new_client, ASB100_REG_I2C_SUBADDR, | |
657 | (force_subclients[2] & 0x07) | | |
658 | ((force_subclients[3] & 0x07) <<4)); | |
659 | data->lm75[0]->addr = force_subclients[2]; | |
660 | data->lm75[1]->addr = force_subclients[3]; | |
661 | } else { | |
662 | int val = asb100_read_value(new_client, ASB100_REG_I2C_SUBADDR); | |
663 | data->lm75[0]->addr = 0x48 + (val & 0x07); | |
664 | data->lm75[1]->addr = 0x48 + ((val >> 4) & 0x07); | |
665 | } | |
666 | ||
667 | if(data->lm75[0]->addr == data->lm75[1]->addr) { | |
668 | dev_err(&new_client->dev, "duplicate addresses 0x%x " | |
669 | "for subclients\n", data->lm75[0]->addr); | |
670 | err = -ENODEV; | |
671 | goto ERROR_SC_2; | |
672 | } | |
673 | ||
674 | for (i = 0; i <= 1; i++) { | |
675 | i2c_set_clientdata(data->lm75[i], NULL); | |
676 | data->lm75[i]->adapter = adapter; | |
677 | data->lm75[i]->driver = &asb100_driver; | |
678 | data->lm75[i]->flags = 0; | |
679 | strlcpy(data->lm75[i]->name, "asb100 subclient", I2C_NAME_SIZE); | |
680 | } | |
681 | ||
682 | if ((err = i2c_attach_client(data->lm75[0]))) { | |
683 | dev_err(&new_client->dev, "subclient %d registration " | |
684 | "at address 0x%x failed.\n", i, data->lm75[0]->addr); | |
685 | goto ERROR_SC_2; | |
686 | } | |
687 | ||
688 | if ((err = i2c_attach_client(data->lm75[1]))) { | |
689 | dev_err(&new_client->dev, "subclient %d registration " | |
690 | "at address 0x%x failed.\n", i, data->lm75[1]->addr); | |
691 | goto ERROR_SC_3; | |
692 | } | |
693 | ||
694 | return 0; | |
695 | ||
696 | /* Undo inits in case of errors */ | |
697 | ERROR_SC_3: | |
698 | i2c_detach_client(data->lm75[0]); | |
699 | ERROR_SC_2: | |
700 | kfree(data->lm75[1]); | |
701 | ERROR_SC_1: | |
702 | kfree(data->lm75[0]); | |
703 | ERROR_SC_0: | |
704 | return err; | |
705 | } | |
706 | ||
707 | static int asb100_detect(struct i2c_adapter *adapter, int address, int kind) | |
708 | { | |
709 | int err; | |
710 | struct i2c_client *new_client; | |
711 | struct asb100_data *data; | |
712 | ||
1da177e4 LT |
713 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
714 | pr_debug("asb100.o: detect failed, " | |
715 | "smbus byte data not supported!\n"); | |
716 | err = -ENODEV; | |
717 | goto ERROR0; | |
718 | } | |
719 | ||
720 | /* OK. For now, we presume we have a valid client. We now create the | |
721 | client structure, even though we cannot fill it completely yet. | |
722 | But it allows us to access asb100_{read,write}_value. */ | |
723 | ||
ba9c2e8d DS |
724 | if (!(data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL))) { |
725 | pr_debug("asb100.o: detect failed, kzalloc failed!\n"); | |
1da177e4 LT |
726 | err = -ENOMEM; |
727 | goto ERROR0; | |
728 | } | |
1da177e4 LT |
729 | |
730 | new_client = &data->client; | |
731 | init_MUTEX(&data->lock); | |
732 | i2c_set_clientdata(new_client, data); | |
733 | new_client->addr = address; | |
734 | new_client->adapter = adapter; | |
735 | new_client->driver = &asb100_driver; | |
736 | new_client->flags = 0; | |
737 | ||
738 | /* Now, we do the remaining detection. */ | |
739 | ||
740 | /* The chip may be stuck in some other bank than bank 0. This may | |
741 | make reading other information impossible. Specify a force=... or | |
742 | force_*=... parameter, and the chip will be reset to the right | |
743 | bank. */ | |
744 | if (kind < 0) { | |
745 | ||
746 | int val1 = asb100_read_value(new_client, ASB100_REG_BANK); | |
747 | int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN); | |
748 | ||
749 | /* If we're in bank 0 */ | |
750 | if ( (!(val1 & 0x07)) && | |
751 | /* Check for ASB100 ID (low byte) */ | |
752 | ( ((!(val1 & 0x80)) && (val2 != 0x94)) || | |
753 | /* Check for ASB100 ID (high byte ) */ | |
754 | ((val1 & 0x80) && (val2 != 0x06)) ) ) { | |
755 | pr_debug("asb100.o: detect failed, " | |
756 | "bad chip id 0x%02x!\n", val2); | |
757 | err = -ENODEV; | |
758 | goto ERROR1; | |
759 | } | |
760 | ||
761 | } /* kind < 0 */ | |
762 | ||
763 | /* We have either had a force parameter, or we have already detected | |
764 | Winbond. Put it now into bank 0 and Vendor ID High Byte */ | |
765 | asb100_write_value(new_client, ASB100_REG_BANK, | |
766 | (asb100_read_value(new_client, ASB100_REG_BANK) & 0x78) | 0x80); | |
767 | ||
768 | /* Determine the chip type. */ | |
769 | if (kind <= 0) { | |
770 | int val1 = asb100_read_value(new_client, ASB100_REG_WCHIPID); | |
771 | int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN); | |
772 | ||
773 | if ((val1 == 0x31) && (val2 == 0x06)) | |
774 | kind = asb100; | |
775 | else { | |
776 | if (kind == 0) | |
777 | dev_warn(&new_client->dev, "ignoring " | |
778 | "'force' parameter for unknown chip " | |
779 | "at adapter %d, address 0x%02x.\n", | |
780 | i2c_adapter_id(adapter), address); | |
781 | err = -ENODEV; | |
782 | goto ERROR1; | |
783 | } | |
784 | } | |
785 | ||
786 | /* Fill in remaining client fields and put it into the global list */ | |
787 | strlcpy(new_client->name, "asb100", I2C_NAME_SIZE); | |
788 | data->type = kind; | |
789 | ||
790 | data->valid = 0; | |
791 | init_MUTEX(&data->update_lock); | |
792 | ||
793 | /* Tell the I2C layer a new client has arrived */ | |
794 | if ((err = i2c_attach_client(new_client))) | |
795 | goto ERROR1; | |
796 | ||
797 | /* Attach secondary lm75 clients */ | |
798 | if ((err = asb100_detect_subclients(adapter, address, kind, | |
799 | new_client))) | |
800 | goto ERROR2; | |
801 | ||
802 | /* Initialize the chip */ | |
803 | asb100_init_client(new_client); | |
804 | ||
805 | /* A few vars need to be filled upon startup */ | |
806 | data->fan_min[0] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(0)); | |
807 | data->fan_min[1] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(1)); | |
808 | data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2)); | |
809 | ||
810 | /* Register sysfs hooks */ | |
943b0830 MH |
811 | data->class_dev = hwmon_device_register(&new_client->dev); |
812 | if (IS_ERR(data->class_dev)) { | |
813 | err = PTR_ERR(data->class_dev); | |
814 | goto ERROR3; | |
815 | } | |
816 | ||
1da177e4 LT |
817 | device_create_file_in(new_client, 0); |
818 | device_create_file_in(new_client, 1); | |
819 | device_create_file_in(new_client, 2); | |
820 | device_create_file_in(new_client, 3); | |
821 | device_create_file_in(new_client, 4); | |
822 | device_create_file_in(new_client, 5); | |
823 | device_create_file_in(new_client, 6); | |
824 | ||
825 | device_create_file_fan(new_client, 1); | |
826 | device_create_file_fan(new_client, 2); | |
827 | device_create_file_fan(new_client, 3); | |
828 | ||
829 | device_create_file_temp(new_client, 1); | |
830 | device_create_file_temp(new_client, 2); | |
831 | device_create_file_temp(new_client, 3); | |
832 | device_create_file_temp(new_client, 4); | |
833 | ||
834 | device_create_file_vid(new_client); | |
835 | device_create_file_vrm(new_client); | |
836 | ||
837 | device_create_file_alarms(new_client); | |
838 | ||
839 | device_create_file_pwm1(new_client); | |
840 | ||
841 | return 0; | |
842 | ||
943b0830 MH |
843 | ERROR3: |
844 | i2c_detach_client(data->lm75[1]); | |
845 | i2c_detach_client(data->lm75[0]); | |
846 | kfree(data->lm75[1]); | |
847 | kfree(data->lm75[0]); | |
1da177e4 LT |
848 | ERROR2: |
849 | i2c_detach_client(new_client); | |
850 | ERROR1: | |
851 | kfree(data); | |
852 | ERROR0: | |
853 | return err; | |
854 | } | |
855 | ||
856 | static int asb100_detach_client(struct i2c_client *client) | |
857 | { | |
943b0830 | 858 | struct asb100_data *data = i2c_get_clientdata(client); |
1da177e4 LT |
859 | int err; |
860 | ||
943b0830 MH |
861 | /* main client */ |
862 | if (data) | |
863 | hwmon_device_unregister(data->class_dev); | |
864 | ||
7bef5594 | 865 | if ((err = i2c_detach_client(client))) |
1da177e4 | 866 | return err; |
1da177e4 | 867 | |
943b0830 MH |
868 | /* main client */ |
869 | if (data) | |
870 | kfree(data); | |
871 | ||
872 | /* subclient */ | |
873 | else | |
1da177e4 | 874 | kfree(client); |
1da177e4 LT |
875 | |
876 | return 0; | |
877 | } | |
878 | ||
879 | /* The SMBus locks itself, usually, but nothing may access the chip between | |
880 | bank switches. */ | |
881 | static int asb100_read_value(struct i2c_client *client, u16 reg) | |
882 | { | |
883 | struct asb100_data *data = i2c_get_clientdata(client); | |
884 | struct i2c_client *cl; | |
885 | int res, bank; | |
886 | ||
887 | down(&data->lock); | |
888 | ||
889 | bank = (reg >> 8) & 0x0f; | |
890 | if (bank > 2) | |
891 | /* switch banks */ | |
892 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
893 | ||
894 | if (bank == 0 || bank > 2) { | |
895 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
896 | } else { | |
897 | /* switch to subclient */ | |
898 | cl = data->lm75[bank - 1]; | |
899 | ||
900 | /* convert from ISA to LM75 I2C addresses */ | |
901 | switch (reg & 0xff) { | |
902 | case 0x50: /* TEMP */ | |
903 | res = swab16(i2c_smbus_read_word_data (cl, 0)); | |
904 | break; | |
905 | case 0x52: /* CONFIG */ | |
906 | res = i2c_smbus_read_byte_data(cl, 1); | |
907 | break; | |
908 | case 0x53: /* HYST */ | |
909 | res = swab16(i2c_smbus_read_word_data (cl, 2)); | |
910 | break; | |
911 | case 0x55: /* MAX */ | |
912 | default: | |
913 | res = swab16(i2c_smbus_read_word_data (cl, 3)); | |
914 | break; | |
915 | } | |
916 | } | |
917 | ||
918 | if (bank > 2) | |
919 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
920 | ||
921 | up(&data->lock); | |
922 | ||
923 | return res; | |
924 | } | |
925 | ||
926 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value) | |
927 | { | |
928 | struct asb100_data *data = i2c_get_clientdata(client); | |
929 | struct i2c_client *cl; | |
930 | int bank; | |
931 | ||
932 | down(&data->lock); | |
933 | ||
934 | bank = (reg >> 8) & 0x0f; | |
935 | if (bank > 2) | |
936 | /* switch banks */ | |
937 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
938 | ||
939 | if (bank == 0 || bank > 2) { | |
940 | i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff); | |
941 | } else { | |
942 | /* switch to subclient */ | |
943 | cl = data->lm75[bank - 1]; | |
944 | ||
945 | /* convert from ISA to LM75 I2C addresses */ | |
946 | switch (reg & 0xff) { | |
947 | case 0x52: /* CONFIG */ | |
948 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
949 | break; | |
950 | case 0x53: /* HYST */ | |
951 | i2c_smbus_write_word_data(cl, 2, swab16(value)); | |
952 | break; | |
953 | case 0x55: /* MAX */ | |
954 | i2c_smbus_write_word_data(cl, 3, swab16(value)); | |
955 | break; | |
956 | } | |
957 | } | |
958 | ||
959 | if (bank > 2) | |
960 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
961 | ||
962 | up(&data->lock); | |
963 | } | |
964 | ||
965 | static void asb100_init_client(struct i2c_client *client) | |
966 | { | |
967 | struct asb100_data *data = i2c_get_clientdata(client); | |
968 | int vid = 0; | |
969 | ||
970 | vid = asb100_read_value(client, ASB100_REG_VID_FANDIV) & 0x0f; | |
971 | vid |= (asb100_read_value(client, ASB100_REG_CHIPID) & 0x01) << 4; | |
303760b4 | 972 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
973 | vid = vid_from_reg(vid, data->vrm); |
974 | ||
975 | /* Start monitoring */ | |
976 | asb100_write_value(client, ASB100_REG_CONFIG, | |
977 | (asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01); | |
978 | } | |
979 | ||
980 | static struct asb100_data *asb100_update_device(struct device *dev) | |
981 | { | |
982 | struct i2c_client *client = to_i2c_client(dev); | |
983 | struct asb100_data *data = i2c_get_clientdata(client); | |
984 | int i; | |
985 | ||
986 | down(&data->update_lock); | |
987 | ||
988 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
989 | || !data->valid) { | |
990 | ||
991 | dev_dbg(&client->dev, "starting device update...\n"); | |
992 | ||
993 | /* 7 voltage inputs */ | |
994 | for (i = 0; i < 7; i++) { | |
995 | data->in[i] = asb100_read_value(client, | |
996 | ASB100_REG_IN(i)); | |
997 | data->in_min[i] = asb100_read_value(client, | |
998 | ASB100_REG_IN_MIN(i)); | |
999 | data->in_max[i] = asb100_read_value(client, | |
1000 | ASB100_REG_IN_MAX(i)); | |
1001 | } | |
1002 | ||
1003 | /* 3 fan inputs */ | |
1004 | for (i = 0; i < 3; i++) { | |
1005 | data->fan[i] = asb100_read_value(client, | |
1006 | ASB100_REG_FAN(i)); | |
1007 | data->fan_min[i] = asb100_read_value(client, | |
1008 | ASB100_REG_FAN_MIN(i)); | |
1009 | } | |
1010 | ||
1011 | /* 4 temperature inputs */ | |
1012 | for (i = 1; i <= 4; i++) { | |
1013 | data->temp[i-1] = asb100_read_value(client, | |
1014 | ASB100_REG_TEMP(i)); | |
1015 | data->temp_max[i-1] = asb100_read_value(client, | |
1016 | ASB100_REG_TEMP_MAX(i)); | |
1017 | data->temp_hyst[i-1] = asb100_read_value(client, | |
1018 | ASB100_REG_TEMP_HYST(i)); | |
1019 | } | |
1020 | ||
1021 | /* VID and fan divisors */ | |
1022 | i = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
1023 | data->vid = i & 0x0f; | |
1024 | data->vid |= (asb100_read_value(client, | |
1025 | ASB100_REG_CHIPID) & 0x01) << 4; | |
1026 | data->fan_div[0] = (i >> 4) & 0x03; | |
1027 | data->fan_div[1] = (i >> 6) & 0x03; | |
1028 | data->fan_div[2] = (asb100_read_value(client, | |
1029 | ASB100_REG_PIN) >> 6) & 0x03; | |
1030 | ||
1031 | /* PWM */ | |
1032 | data->pwm = asb100_read_value(client, ASB100_REG_PWM1); | |
1033 | ||
1034 | /* alarms */ | |
1035 | data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) + | |
1036 | (asb100_read_value(client, ASB100_REG_ALARM2) << 8); | |
1037 | ||
1038 | data->last_updated = jiffies; | |
1039 | data->valid = 1; | |
1040 | ||
1041 | dev_dbg(&client->dev, "... device update complete\n"); | |
1042 | } | |
1043 | ||
1044 | up(&data->update_lock); | |
1045 | ||
1046 | return data; | |
1047 | } | |
1048 | ||
1049 | static int __init asb100_init(void) | |
1050 | { | |
1051 | return i2c_add_driver(&asb100_driver); | |
1052 | } | |
1053 | ||
1054 | static void __exit asb100_exit(void) | |
1055 | { | |
1056 | i2c_del_driver(&asb100_driver); | |
1057 | } | |
1058 | ||
1059 | MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>"); | |
1060 | MODULE_DESCRIPTION("ASB100 Bach driver"); | |
1061 | MODULE_LICENSE("GPL"); | |
1062 | ||
1063 | module_init(asb100_init); | |
1064 | module_exit(asb100_exit); | |
1065 |