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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> |
9a61bf63 | 47 | #include <linux/mutex.h> |
1da177e4 LT |
48 | #include "lm75.h" |
49 | ||
50 | /* | |
51 | HISTORY: | |
52 | 2003-12-29 1.0.0 Ported from lm_sensors project for kernel 2.6 | |
53 | */ | |
54 | #define ASB100_VERSION "1.0.0" | |
55 | ||
56 | /* I2C addresses to scan */ | |
57 | static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; | |
58 | ||
1da177e4 | 59 | /* Insmod parameters */ |
f4b50261 | 60 | I2C_CLIENT_INSMOD_1(asb100); |
1da177e4 LT |
61 | I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: " |
62 | "{bus, clientaddr, subclientaddr1, subclientaddr2}"); | |
63 | ||
64 | /* Voltage IN registers 0-6 */ | |
65 | #define ASB100_REG_IN(nr) (0x20 + (nr)) | |
66 | #define ASB100_REG_IN_MAX(nr) (0x2b + (nr * 2)) | |
67 | #define ASB100_REG_IN_MIN(nr) (0x2c + (nr * 2)) | |
68 | ||
69 | /* FAN IN registers 1-3 */ | |
70 | #define ASB100_REG_FAN(nr) (0x28 + (nr)) | |
71 | #define ASB100_REG_FAN_MIN(nr) (0x3b + (nr)) | |
72 | ||
73 | /* TEMPERATURE registers 1-4 */ | |
74 | static const u16 asb100_reg_temp[] = {0, 0x27, 0x150, 0x250, 0x17}; | |
75 | static const u16 asb100_reg_temp_max[] = {0, 0x39, 0x155, 0x255, 0x18}; | |
76 | static const u16 asb100_reg_temp_hyst[] = {0, 0x3a, 0x153, 0x253, 0x19}; | |
77 | ||
78 | #define ASB100_REG_TEMP(nr) (asb100_reg_temp[nr]) | |
79 | #define ASB100_REG_TEMP_MAX(nr) (asb100_reg_temp_max[nr]) | |
80 | #define ASB100_REG_TEMP_HYST(nr) (asb100_reg_temp_hyst[nr]) | |
81 | ||
82 | #define ASB100_REG_TEMP2_CONFIG 0x0152 | |
83 | #define ASB100_REG_TEMP3_CONFIG 0x0252 | |
84 | ||
85 | ||
86 | #define ASB100_REG_CONFIG 0x40 | |
87 | #define ASB100_REG_ALARM1 0x41 | |
88 | #define ASB100_REG_ALARM2 0x42 | |
89 | #define ASB100_REG_SMIM1 0x43 | |
90 | #define ASB100_REG_SMIM2 0x44 | |
91 | #define ASB100_REG_VID_FANDIV 0x47 | |
92 | #define ASB100_REG_I2C_ADDR 0x48 | |
93 | #define ASB100_REG_CHIPID 0x49 | |
94 | #define ASB100_REG_I2C_SUBADDR 0x4a | |
95 | #define ASB100_REG_PIN 0x4b | |
96 | #define ASB100_REG_IRQ 0x4c | |
97 | #define ASB100_REG_BANK 0x4e | |
98 | #define ASB100_REG_CHIPMAN 0x4f | |
99 | ||
100 | #define ASB100_REG_WCHIPID 0x58 | |
101 | ||
102 | /* bit 7 -> enable, bits 0-3 -> duty cycle */ | |
103 | #define ASB100_REG_PWM1 0x59 | |
104 | ||
105 | /* CONVERSIONS | |
106 | Rounding and limit checking is only done on the TO_REG variants. */ | |
107 | ||
108 | /* These constants are a guess, consistent w/ w83781d */ | |
109 | #define ASB100_IN_MIN ( 0) | |
110 | #define ASB100_IN_MAX (4080) | |
111 | ||
112 | /* IN: 1/1000 V (0V to 4.08V) | |
113 | REG: 16mV/bit */ | |
114 | static u8 IN_TO_REG(unsigned val) | |
115 | { | |
116 | unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX); | |
117 | return (nval + 8) / 16; | |
118 | } | |
119 | ||
120 | static unsigned IN_FROM_REG(u8 reg) | |
121 | { | |
122 | return reg * 16; | |
123 | } | |
124 | ||
125 | static u8 FAN_TO_REG(long rpm, int div) | |
126 | { | |
127 | if (rpm == -1) | |
128 | return 0; | |
129 | if (rpm == 0) | |
130 | return 255; | |
131 | rpm = SENSORS_LIMIT(rpm, 1, 1000000); | |
132 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
133 | } | |
134 | ||
135 | static int FAN_FROM_REG(u8 val, int div) | |
136 | { | |
137 | return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div); | |
138 | } | |
139 | ||
140 | /* These constants are a guess, consistent w/ w83781d */ | |
141 | #define ASB100_TEMP_MIN (-128000) | |
142 | #define ASB100_TEMP_MAX ( 127000) | |
143 | ||
144 | /* TEMP: 0.001C/bit (-128C to +127C) | |
145 | REG: 1C/bit, two's complement */ | |
5bfedac0 | 146 | static u8 TEMP_TO_REG(long temp) |
1da177e4 LT |
147 | { |
148 | int ntemp = SENSORS_LIMIT(temp, ASB100_TEMP_MIN, ASB100_TEMP_MAX); | |
149 | ntemp += (ntemp<0 ? -500 : 500); | |
150 | return (u8)(ntemp / 1000); | |
151 | } | |
152 | ||
153 | static int TEMP_FROM_REG(u8 reg) | |
154 | { | |
155 | return (s8)reg * 1000; | |
156 | } | |
157 | ||
158 | /* PWM: 0 - 255 per sensors documentation | |
159 | REG: (6.25% duty cycle per bit) */ | |
160 | static u8 ASB100_PWM_TO_REG(int pwm) | |
161 | { | |
162 | pwm = SENSORS_LIMIT(pwm, 0, 255); | |
163 | return (u8)(pwm / 16); | |
164 | } | |
165 | ||
166 | static int ASB100_PWM_FROM_REG(u8 reg) | |
167 | { | |
168 | return reg * 16; | |
169 | } | |
170 | ||
1da177e4 LT |
171 | #define DIV_FROM_REG(val) (1 << (val)) |
172 | ||
173 | /* FAN DIV: 1, 2, 4, or 8 (defaults to 2) | |
174 | REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ | |
175 | static u8 DIV_TO_REG(long val) | |
176 | { | |
177 | return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1; | |
178 | } | |
179 | ||
180 | /* For each registered client, we need to keep some data in memory. That | |
181 | data is pointed to by client->data. The structure itself is | |
182 | dynamically allocated, at the same time the client itself is allocated. */ | |
183 | struct asb100_data { | |
184 | struct i2c_client client; | |
1beeffe4 | 185 | struct device *hwmon_dev; |
9a61bf63 | 186 | struct mutex lock; |
1da177e4 LT |
187 | enum chips type; |
188 | ||
9a61bf63 | 189 | struct mutex update_lock; |
1da177e4 LT |
190 | unsigned long last_updated; /* In jiffies */ |
191 | ||
192 | /* array of 2 pointers to subclients */ | |
193 | struct i2c_client *lm75[2]; | |
194 | ||
195 | char valid; /* !=0 if following fields are valid */ | |
196 | u8 in[7]; /* Register value */ | |
197 | u8 in_max[7]; /* Register value */ | |
198 | u8 in_min[7]; /* Register value */ | |
199 | u8 fan[3]; /* Register value */ | |
200 | u8 fan_min[3]; /* Register value */ | |
201 | u16 temp[4]; /* Register value (0 and 3 are u8 only) */ | |
202 | u16 temp_max[4]; /* Register value (0 and 3 are u8 only) */ | |
203 | u16 temp_hyst[4]; /* Register value (0 and 3 are u8 only) */ | |
204 | u8 fan_div[3]; /* Register encoding, right justified */ | |
205 | u8 pwm; /* Register encoding */ | |
206 | u8 vid; /* Register encoding, combined */ | |
207 | u32 alarms; /* Register encoding, combined */ | |
208 | u8 vrm; | |
209 | }; | |
210 | ||
211 | static int asb100_read_value(struct i2c_client *client, u16 reg); | |
212 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 val); | |
213 | ||
214 | static int asb100_attach_adapter(struct i2c_adapter *adapter); | |
215 | static int asb100_detect(struct i2c_adapter *adapter, int address, int kind); | |
216 | static int asb100_detach_client(struct i2c_client *client); | |
217 | static struct asb100_data *asb100_update_device(struct device *dev); | |
218 | static void asb100_init_client(struct i2c_client *client); | |
219 | ||
220 | static struct i2c_driver asb100_driver = { | |
cdaf7934 | 221 | .driver = { |
cdaf7934 LR |
222 | .name = "asb100", |
223 | }, | |
1da177e4 | 224 | .id = I2C_DRIVERID_ASB100, |
1da177e4 LT |
225 | .attach_adapter = asb100_attach_adapter, |
226 | .detach_client = asb100_detach_client, | |
227 | }; | |
228 | ||
229 | /* 7 Voltages */ | |
230 | #define show_in_reg(reg) \ | |
231 | static ssize_t show_##reg (struct device *dev, char *buf, int nr) \ | |
232 | { \ | |
233 | struct asb100_data *data = asb100_update_device(dev); \ | |
234 | return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \ | |
235 | } | |
236 | ||
237 | show_in_reg(in) | |
238 | show_in_reg(in_min) | |
239 | show_in_reg(in_max) | |
240 | ||
241 | #define set_in_reg(REG, reg) \ | |
242 | static ssize_t set_in_##reg(struct device *dev, const char *buf, \ | |
243 | size_t count, int nr) \ | |
244 | { \ | |
245 | struct i2c_client *client = to_i2c_client(dev); \ | |
246 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
247 | unsigned long val = simple_strtoul(buf, NULL, 10); \ | |
248 | \ | |
9a61bf63 | 249 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
250 | data->in_##reg[nr] = IN_TO_REG(val); \ |
251 | asb100_write_value(client, ASB100_REG_IN_##REG(nr), \ | |
252 | data->in_##reg[nr]); \ | |
9a61bf63 | 253 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
254 | return count; \ |
255 | } | |
256 | ||
257 | set_in_reg(MIN, min) | |
258 | set_in_reg(MAX, max) | |
259 | ||
260 | #define sysfs_in(offset) \ | |
261 | static ssize_t \ | |
30f74292 | 262 | show_in##offset (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
263 | { \ |
264 | return show_in(dev, buf, offset); \ | |
265 | } \ | |
266 | static DEVICE_ATTR(in##offset##_input, S_IRUGO, \ | |
267 | show_in##offset, NULL); \ | |
268 | static ssize_t \ | |
30f74292 | 269 | show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
270 | { \ |
271 | return show_in_min(dev, buf, offset); \ | |
272 | } \ | |
273 | static ssize_t \ | |
30f74292 | 274 | show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
275 | { \ |
276 | return show_in_max(dev, buf, offset); \ | |
277 | } \ | |
30f74292 | 278 | static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
279 | const char *buf, size_t count) \ |
280 | { \ | |
281 | return set_in_min(dev, buf, count, offset); \ | |
282 | } \ | |
30f74292 | 283 | static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr, \ |
1da177e4 LT |
284 | const char *buf, size_t count) \ |
285 | { \ | |
286 | return set_in_max(dev, buf, count, offset); \ | |
287 | } \ | |
288 | static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
289 | show_in##offset##_min, set_in##offset##_min); \ | |
290 | static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
291 | show_in##offset##_max, set_in##offset##_max); | |
292 | ||
293 | sysfs_in(0); | |
294 | sysfs_in(1); | |
295 | sysfs_in(2); | |
296 | sysfs_in(3); | |
297 | sysfs_in(4); | |
298 | sysfs_in(5); | |
299 | sysfs_in(6); | |
300 | ||
1da177e4 LT |
301 | /* 3 Fans */ |
302 | static ssize_t show_fan(struct device *dev, char *buf, int nr) | |
303 | { | |
304 | struct asb100_data *data = asb100_update_device(dev); | |
305 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], | |
306 | DIV_FROM_REG(data->fan_div[nr]))); | |
307 | } | |
308 | ||
309 | static ssize_t show_fan_min(struct device *dev, char *buf, int nr) | |
310 | { | |
311 | struct asb100_data *data = asb100_update_device(dev); | |
312 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], | |
313 | DIV_FROM_REG(data->fan_div[nr]))); | |
314 | } | |
315 | ||
316 | static ssize_t show_fan_div(struct device *dev, char *buf, int nr) | |
317 | { | |
318 | struct asb100_data *data = asb100_update_device(dev); | |
319 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); | |
320 | } | |
321 | ||
322 | static ssize_t set_fan_min(struct device *dev, const char *buf, | |
323 | size_t count, int nr) | |
324 | { | |
325 | struct i2c_client *client = to_i2c_client(dev); | |
326 | struct asb100_data *data = i2c_get_clientdata(client); | |
327 | u32 val = simple_strtoul(buf, NULL, 10); | |
328 | ||
9a61bf63 | 329 | mutex_lock(&data->update_lock); |
1da177e4 LT |
330 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
331 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
9a61bf63 | 332 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
333 | return count; |
334 | } | |
335 | ||
336 | /* Note: we save and restore the fan minimum here, because its value is | |
337 | determined in part by the fan divisor. This follows the principle of | |
d6e05edc | 338 | least surprise; the user doesn't expect the fan minimum to change just |
1da177e4 LT |
339 | because the divisor changed. */ |
340 | static ssize_t set_fan_div(struct device *dev, const char *buf, | |
341 | size_t count, int nr) | |
342 | { | |
343 | struct i2c_client *client = to_i2c_client(dev); | |
344 | struct asb100_data *data = i2c_get_clientdata(client); | |
345 | unsigned long min; | |
346 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
347 | int reg; | |
348 | ||
9a61bf63 | 349 | mutex_lock(&data->update_lock); |
1da177e4 LT |
350 | |
351 | min = FAN_FROM_REG(data->fan_min[nr], | |
352 | DIV_FROM_REG(data->fan_div[nr])); | |
353 | data->fan_div[nr] = DIV_TO_REG(val); | |
354 | ||
355 | switch(nr) { | |
356 | case 0: /* fan 1 */ | |
357 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
358 | reg = (reg & 0xcf) | (data->fan_div[0] << 4); | |
359 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
360 | break; | |
361 | ||
362 | case 1: /* fan 2 */ | |
363 | reg = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
364 | reg = (reg & 0x3f) | (data->fan_div[1] << 6); | |
365 | asb100_write_value(client, ASB100_REG_VID_FANDIV, reg); | |
366 | break; | |
367 | ||
368 | case 2: /* fan 3 */ | |
369 | reg = asb100_read_value(client, ASB100_REG_PIN); | |
370 | reg = (reg & 0x3f) | (data->fan_div[2] << 6); | |
371 | asb100_write_value(client, ASB100_REG_PIN, reg); | |
372 | break; | |
373 | } | |
374 | ||
375 | data->fan_min[nr] = | |
376 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
377 | asb100_write_value(client, ASB100_REG_FAN_MIN(nr), data->fan_min[nr]); | |
378 | ||
9a61bf63 | 379 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
380 | |
381 | return count; | |
382 | } | |
383 | ||
384 | #define sysfs_fan(offset) \ | |
30f74292 | 385 | static ssize_t show_fan##offset(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
386 | { \ |
387 | return show_fan(dev, buf, offset - 1); \ | |
388 | } \ | |
30f74292 | 389 | static ssize_t show_fan##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
390 | { \ |
391 | return show_fan_min(dev, buf, offset - 1); \ | |
392 | } \ | |
30f74292 | 393 | static ssize_t show_fan##offset##_div(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
394 | { \ |
395 | return show_fan_div(dev, buf, offset - 1); \ | |
396 | } \ | |
30f74292 | 397 | static ssize_t set_fan##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
398 | size_t count) \ |
399 | { \ | |
400 | return set_fan_min(dev, buf, count, offset - 1); \ | |
401 | } \ | |
30f74292 | 402 | static ssize_t set_fan##offset##_div(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
403 | size_t count) \ |
404 | { \ | |
405 | return set_fan_div(dev, buf, count, offset - 1); \ | |
406 | } \ | |
407 | static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ | |
408 | show_fan##offset, NULL); \ | |
409 | static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
410 | show_fan##offset##_min, set_fan##offset##_min); \ | |
411 | static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
412 | show_fan##offset##_div, set_fan##offset##_div); | |
413 | ||
414 | sysfs_fan(1); | |
415 | sysfs_fan(2); | |
416 | sysfs_fan(3); | |
417 | ||
1da177e4 LT |
418 | /* 4 Temp. Sensors */ |
419 | static int sprintf_temp_from_reg(u16 reg, char *buf, int nr) | |
420 | { | |
421 | int ret = 0; | |
422 | ||
423 | switch (nr) { | |
424 | case 1: case 2: | |
425 | ret = sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(reg)); | |
426 | break; | |
427 | case 0: case 3: default: | |
428 | ret = sprintf(buf, "%d\n", TEMP_FROM_REG(reg)); | |
429 | break; | |
430 | } | |
431 | return ret; | |
432 | } | |
433 | ||
434 | #define show_temp_reg(reg) \ | |
435 | static ssize_t show_##reg(struct device *dev, char *buf, int nr) \ | |
436 | { \ | |
437 | struct asb100_data *data = asb100_update_device(dev); \ | |
438 | return sprintf_temp_from_reg(data->reg[nr], buf, nr); \ | |
439 | } | |
440 | ||
441 | show_temp_reg(temp); | |
442 | show_temp_reg(temp_max); | |
443 | show_temp_reg(temp_hyst); | |
444 | ||
445 | #define set_temp_reg(REG, reg) \ | |
446 | static ssize_t set_##reg(struct device *dev, const char *buf, \ | |
447 | size_t count, int nr) \ | |
448 | { \ | |
449 | struct i2c_client *client = to_i2c_client(dev); \ | |
450 | struct asb100_data *data = i2c_get_clientdata(client); \ | |
5bfedac0 | 451 | long val = simple_strtol(buf, NULL, 10); \ |
1da177e4 | 452 | \ |
9a61bf63 | 453 | mutex_lock(&data->update_lock); \ |
1da177e4 LT |
454 | switch (nr) { \ |
455 | case 1: case 2: \ | |
456 | data->reg[nr] = LM75_TEMP_TO_REG(val); \ | |
457 | break; \ | |
458 | case 0: case 3: default: \ | |
459 | data->reg[nr] = TEMP_TO_REG(val); \ | |
460 | break; \ | |
461 | } \ | |
462 | asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \ | |
463 | data->reg[nr]); \ | |
9a61bf63 | 464 | mutex_unlock(&data->update_lock); \ |
1da177e4 LT |
465 | return count; \ |
466 | } | |
467 | ||
468 | set_temp_reg(MAX, temp_max); | |
469 | set_temp_reg(HYST, temp_hyst); | |
470 | ||
471 | #define sysfs_temp(num) \ | |
30f74292 | 472 | static ssize_t show_temp##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
473 | { \ |
474 | return show_temp(dev, buf, num-1); \ | |
475 | } \ | |
476 | static DEVICE_ATTR(temp##num##_input, S_IRUGO, show_temp##num, NULL); \ | |
30f74292 | 477 | static ssize_t show_temp_max##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
478 | { \ |
479 | return show_temp_max(dev, buf, num-1); \ | |
480 | } \ | |
30f74292 | 481 | static ssize_t set_temp_max##num(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
482 | size_t count) \ |
483 | { \ | |
484 | return set_temp_max(dev, buf, count, num-1); \ | |
485 | } \ | |
486 | static DEVICE_ATTR(temp##num##_max, S_IRUGO | S_IWUSR, \ | |
487 | show_temp_max##num, set_temp_max##num); \ | |
30f74292 | 488 | static ssize_t show_temp_hyst##num(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
489 | { \ |
490 | return show_temp_hyst(dev, buf, num-1); \ | |
491 | } \ | |
30f74292 | 492 | static ssize_t set_temp_hyst##num(struct device *dev, struct device_attribute *attr, const char *buf, \ |
1da177e4 LT |
493 | size_t count) \ |
494 | { \ | |
495 | return set_temp_hyst(dev, buf, count, num-1); \ | |
496 | } \ | |
497 | static DEVICE_ATTR(temp##num##_max_hyst, S_IRUGO | S_IWUSR, \ | |
498 | show_temp_hyst##num, set_temp_hyst##num); | |
499 | ||
500 | sysfs_temp(1); | |
501 | sysfs_temp(2); | |
502 | sysfs_temp(3); | |
503 | sysfs_temp(4); | |
504 | ||
505 | /* VID */ | |
30f74292 | 506 | static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
507 | { |
508 | struct asb100_data *data = asb100_update_device(dev); | |
509 | return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); | |
510 | } | |
511 | ||
512 | static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); | |
1da177e4 LT |
513 | |
514 | /* VRM */ | |
30f74292 | 515 | static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
516 | { |
517 | struct asb100_data *data = asb100_update_device(dev); | |
518 | return sprintf(buf, "%d\n", data->vrm); | |
519 | } | |
520 | ||
30f74292 | 521 | static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
522 | { |
523 | struct i2c_client *client = to_i2c_client(dev); | |
524 | struct asb100_data *data = i2c_get_clientdata(client); | |
525 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
526 | data->vrm = val; | |
527 | return count; | |
528 | } | |
529 | ||
530 | /* Alarms */ | |
531 | static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); | |
1da177e4 | 532 | |
30f74292 | 533 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
534 | { |
535 | struct asb100_data *data = asb100_update_device(dev); | |
68188ba7 | 536 | return sprintf(buf, "%u\n", data->alarms); |
1da177e4 LT |
537 | } |
538 | ||
539 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
1da177e4 LT |
540 | |
541 | /* 1 PWM */ | |
30f74292 | 542 | static ssize_t show_pwm1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
543 | { |
544 | struct asb100_data *data = asb100_update_device(dev); | |
545 | return sprintf(buf, "%d\n", ASB100_PWM_FROM_REG(data->pwm & 0x0f)); | |
546 | } | |
547 | ||
30f74292 | 548 | static ssize_t set_pwm1(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 LT |
549 | { |
550 | struct i2c_client *client = to_i2c_client(dev); | |
551 | struct asb100_data *data = i2c_get_clientdata(client); | |
552 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
553 | ||
9a61bf63 | 554 | mutex_lock(&data->update_lock); |
1da177e4 LT |
555 | data->pwm &= 0x80; /* keep the enable bit */ |
556 | data->pwm |= (0x0f & ASB100_PWM_TO_REG(val)); | |
557 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
9a61bf63 | 558 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
559 | return count; |
560 | } | |
561 | ||
30f74292 | 562 | static ssize_t show_pwm_enable1(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
563 | { |
564 | struct asb100_data *data = asb100_update_device(dev); | |
565 | return sprintf(buf, "%d\n", (data->pwm & 0x80) ? 1 : 0); | |
566 | } | |
567 | ||
30f74292 | 568 | static ssize_t set_pwm_enable1(struct device *dev, struct device_attribute *attr, const char *buf, |
1da177e4 LT |
569 | size_t count) |
570 | { | |
571 | struct i2c_client *client = to_i2c_client(dev); | |
572 | struct asb100_data *data = i2c_get_clientdata(client); | |
573 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
574 | ||
9a61bf63 | 575 | mutex_lock(&data->update_lock); |
1da177e4 LT |
576 | data->pwm &= 0x0f; /* keep the duty cycle bits */ |
577 | data->pwm |= (val ? 0x80 : 0x00); | |
578 | asb100_write_value(client, ASB100_REG_PWM1, data->pwm); | |
9a61bf63 | 579 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
580 | return count; |
581 | } | |
582 | ||
583 | static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm1, set_pwm1); | |
584 | static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, | |
585 | show_pwm_enable1, set_pwm_enable1); | |
c1685f61 MH |
586 | |
587 | static struct attribute *asb100_attributes[] = { | |
588 | &dev_attr_in0_input.attr, | |
589 | &dev_attr_in0_min.attr, | |
590 | &dev_attr_in0_max.attr, | |
591 | &dev_attr_in1_input.attr, | |
592 | &dev_attr_in1_min.attr, | |
593 | &dev_attr_in1_max.attr, | |
594 | &dev_attr_in2_input.attr, | |
595 | &dev_attr_in2_min.attr, | |
596 | &dev_attr_in2_max.attr, | |
597 | &dev_attr_in3_input.attr, | |
598 | &dev_attr_in3_min.attr, | |
599 | &dev_attr_in3_max.attr, | |
600 | &dev_attr_in4_input.attr, | |
601 | &dev_attr_in4_min.attr, | |
602 | &dev_attr_in4_max.attr, | |
603 | &dev_attr_in5_input.attr, | |
604 | &dev_attr_in5_min.attr, | |
605 | &dev_attr_in5_max.attr, | |
606 | &dev_attr_in6_input.attr, | |
607 | &dev_attr_in6_min.attr, | |
608 | &dev_attr_in6_max.attr, | |
609 | ||
610 | &dev_attr_fan1_input.attr, | |
611 | &dev_attr_fan1_min.attr, | |
612 | &dev_attr_fan1_div.attr, | |
613 | &dev_attr_fan2_input.attr, | |
614 | &dev_attr_fan2_min.attr, | |
615 | &dev_attr_fan2_div.attr, | |
616 | &dev_attr_fan3_input.attr, | |
617 | &dev_attr_fan3_min.attr, | |
618 | &dev_attr_fan3_div.attr, | |
619 | ||
620 | &dev_attr_temp1_input.attr, | |
621 | &dev_attr_temp1_max.attr, | |
622 | &dev_attr_temp1_max_hyst.attr, | |
623 | &dev_attr_temp2_input.attr, | |
624 | &dev_attr_temp2_max.attr, | |
625 | &dev_attr_temp2_max_hyst.attr, | |
626 | &dev_attr_temp3_input.attr, | |
627 | &dev_attr_temp3_max.attr, | |
628 | &dev_attr_temp3_max_hyst.attr, | |
629 | &dev_attr_temp4_input.attr, | |
630 | &dev_attr_temp4_max.attr, | |
631 | &dev_attr_temp4_max_hyst.attr, | |
632 | ||
633 | &dev_attr_cpu0_vid.attr, | |
634 | &dev_attr_vrm.attr, | |
635 | &dev_attr_alarms.attr, | |
636 | &dev_attr_pwm1.attr, | |
637 | &dev_attr_pwm1_enable.attr, | |
638 | ||
639 | NULL | |
640 | }; | |
641 | ||
642 | static const struct attribute_group asb100_group = { | |
643 | .attrs = asb100_attributes, | |
644 | }; | |
1da177e4 LT |
645 | |
646 | /* This function is called when: | |
647 | asb100_driver is inserted (when this module is loaded), for each | |
648 | available adapter | |
649 | when a new adapter is inserted (and asb100_driver is still present) | |
650 | */ | |
651 | static int asb100_attach_adapter(struct i2c_adapter *adapter) | |
652 | { | |
653 | if (!(adapter->class & I2C_CLASS_HWMON)) | |
654 | return 0; | |
2ed2dc3c | 655 | return i2c_probe(adapter, &addr_data, asb100_detect); |
1da177e4 LT |
656 | } |
657 | ||
658 | static int asb100_detect_subclients(struct i2c_adapter *adapter, int address, | |
659 | int kind, struct i2c_client *new_client) | |
660 | { | |
661 | int i, id, err; | |
662 | struct asb100_data *data = i2c_get_clientdata(new_client); | |
663 | ||
ba9c2e8d | 664 | data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
665 | if (!(data->lm75[0])) { |
666 | err = -ENOMEM; | |
667 | goto ERROR_SC_0; | |
668 | } | |
1da177e4 | 669 | |
ba9c2e8d | 670 | data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
1da177e4 LT |
671 | if (!(data->lm75[1])) { |
672 | err = -ENOMEM; | |
673 | goto ERROR_SC_1; | |
674 | } | |
1da177e4 LT |
675 | |
676 | id = i2c_adapter_id(adapter); | |
677 | ||
678 | if (force_subclients[0] == id && force_subclients[1] == address) { | |
679 | for (i = 2; i <= 3; i++) { | |
680 | if (force_subclients[i] < 0x48 || | |
681 | force_subclients[i] > 0x4f) { | |
682 | dev_err(&new_client->dev, "invalid subclient " | |
683 | "address %d; must be 0x48-0x4f\n", | |
684 | force_subclients[i]); | |
685 | err = -ENODEV; | |
686 | goto ERROR_SC_2; | |
687 | } | |
688 | } | |
689 | asb100_write_value(new_client, ASB100_REG_I2C_SUBADDR, | |
690 | (force_subclients[2] & 0x07) | | |
691 | ((force_subclients[3] & 0x07) <<4)); | |
692 | data->lm75[0]->addr = force_subclients[2]; | |
693 | data->lm75[1]->addr = force_subclients[3]; | |
694 | } else { | |
695 | int val = asb100_read_value(new_client, ASB100_REG_I2C_SUBADDR); | |
696 | data->lm75[0]->addr = 0x48 + (val & 0x07); | |
697 | data->lm75[1]->addr = 0x48 + ((val >> 4) & 0x07); | |
698 | } | |
699 | ||
700 | if(data->lm75[0]->addr == data->lm75[1]->addr) { | |
701 | dev_err(&new_client->dev, "duplicate addresses 0x%x " | |
702 | "for subclients\n", data->lm75[0]->addr); | |
703 | err = -ENODEV; | |
704 | goto ERROR_SC_2; | |
705 | } | |
706 | ||
707 | for (i = 0; i <= 1; i++) { | |
708 | i2c_set_clientdata(data->lm75[i], NULL); | |
709 | data->lm75[i]->adapter = adapter; | |
710 | data->lm75[i]->driver = &asb100_driver; | |
711 | data->lm75[i]->flags = 0; | |
712 | strlcpy(data->lm75[i]->name, "asb100 subclient", I2C_NAME_SIZE); | |
713 | } | |
714 | ||
715 | if ((err = i2c_attach_client(data->lm75[0]))) { | |
716 | dev_err(&new_client->dev, "subclient %d registration " | |
717 | "at address 0x%x failed.\n", i, data->lm75[0]->addr); | |
718 | goto ERROR_SC_2; | |
719 | } | |
720 | ||
721 | if ((err = i2c_attach_client(data->lm75[1]))) { | |
722 | dev_err(&new_client->dev, "subclient %d registration " | |
723 | "at address 0x%x failed.\n", i, data->lm75[1]->addr); | |
724 | goto ERROR_SC_3; | |
725 | } | |
726 | ||
727 | return 0; | |
728 | ||
729 | /* Undo inits in case of errors */ | |
730 | ERROR_SC_3: | |
731 | i2c_detach_client(data->lm75[0]); | |
732 | ERROR_SC_2: | |
733 | kfree(data->lm75[1]); | |
734 | ERROR_SC_1: | |
735 | kfree(data->lm75[0]); | |
736 | ERROR_SC_0: | |
737 | return err; | |
738 | } | |
739 | ||
740 | static int asb100_detect(struct i2c_adapter *adapter, int address, int kind) | |
741 | { | |
742 | int err; | |
743 | struct i2c_client *new_client; | |
744 | struct asb100_data *data; | |
745 | ||
1da177e4 LT |
746 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { |
747 | pr_debug("asb100.o: detect failed, " | |
748 | "smbus byte data not supported!\n"); | |
749 | err = -ENODEV; | |
750 | goto ERROR0; | |
751 | } | |
752 | ||
753 | /* OK. For now, we presume we have a valid client. We now create the | |
754 | client structure, even though we cannot fill it completely yet. | |
755 | But it allows us to access asb100_{read,write}_value. */ | |
756 | ||
ba9c2e8d DS |
757 | if (!(data = kzalloc(sizeof(struct asb100_data), GFP_KERNEL))) { |
758 | pr_debug("asb100.o: detect failed, kzalloc failed!\n"); | |
1da177e4 LT |
759 | err = -ENOMEM; |
760 | goto ERROR0; | |
761 | } | |
1da177e4 LT |
762 | |
763 | new_client = &data->client; | |
9a61bf63 | 764 | mutex_init(&data->lock); |
1da177e4 LT |
765 | i2c_set_clientdata(new_client, data); |
766 | new_client->addr = address; | |
767 | new_client->adapter = adapter; | |
768 | new_client->driver = &asb100_driver; | |
769 | new_client->flags = 0; | |
770 | ||
771 | /* Now, we do the remaining detection. */ | |
772 | ||
773 | /* The chip may be stuck in some other bank than bank 0. This may | |
774 | make reading other information impossible. Specify a force=... or | |
775 | force_*=... parameter, and the chip will be reset to the right | |
776 | bank. */ | |
777 | if (kind < 0) { | |
778 | ||
779 | int val1 = asb100_read_value(new_client, ASB100_REG_BANK); | |
780 | int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN); | |
781 | ||
782 | /* If we're in bank 0 */ | |
783 | if ( (!(val1 & 0x07)) && | |
784 | /* Check for ASB100 ID (low byte) */ | |
785 | ( ((!(val1 & 0x80)) && (val2 != 0x94)) || | |
786 | /* Check for ASB100 ID (high byte ) */ | |
787 | ((val1 & 0x80) && (val2 != 0x06)) ) ) { | |
788 | pr_debug("asb100.o: detect failed, " | |
789 | "bad chip id 0x%02x!\n", val2); | |
790 | err = -ENODEV; | |
791 | goto ERROR1; | |
792 | } | |
793 | ||
794 | } /* kind < 0 */ | |
795 | ||
796 | /* We have either had a force parameter, or we have already detected | |
797 | Winbond. Put it now into bank 0 and Vendor ID High Byte */ | |
798 | asb100_write_value(new_client, ASB100_REG_BANK, | |
799 | (asb100_read_value(new_client, ASB100_REG_BANK) & 0x78) | 0x80); | |
800 | ||
801 | /* Determine the chip type. */ | |
802 | if (kind <= 0) { | |
803 | int val1 = asb100_read_value(new_client, ASB100_REG_WCHIPID); | |
804 | int val2 = asb100_read_value(new_client, ASB100_REG_CHIPMAN); | |
805 | ||
806 | if ((val1 == 0x31) && (val2 == 0x06)) | |
807 | kind = asb100; | |
808 | else { | |
809 | if (kind == 0) | |
810 | dev_warn(&new_client->dev, "ignoring " | |
811 | "'force' parameter for unknown chip " | |
812 | "at adapter %d, address 0x%02x.\n", | |
813 | i2c_adapter_id(adapter), address); | |
814 | err = -ENODEV; | |
815 | goto ERROR1; | |
816 | } | |
817 | } | |
818 | ||
819 | /* Fill in remaining client fields and put it into the global list */ | |
820 | strlcpy(new_client->name, "asb100", I2C_NAME_SIZE); | |
821 | data->type = kind; | |
822 | ||
823 | data->valid = 0; | |
9a61bf63 | 824 | mutex_init(&data->update_lock); |
1da177e4 LT |
825 | |
826 | /* Tell the I2C layer a new client has arrived */ | |
827 | if ((err = i2c_attach_client(new_client))) | |
828 | goto ERROR1; | |
829 | ||
830 | /* Attach secondary lm75 clients */ | |
831 | if ((err = asb100_detect_subclients(adapter, address, kind, | |
832 | new_client))) | |
833 | goto ERROR2; | |
834 | ||
835 | /* Initialize the chip */ | |
836 | asb100_init_client(new_client); | |
837 | ||
838 | /* A few vars need to be filled upon startup */ | |
839 | data->fan_min[0] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(0)); | |
840 | data->fan_min[1] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(1)); | |
841 | data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2)); | |
842 | ||
843 | /* Register sysfs hooks */ | |
c1685f61 MH |
844 | if ((err = sysfs_create_group(&new_client->dev.kobj, &asb100_group))) |
845 | goto ERROR3; | |
846 | ||
1beeffe4 TJ |
847 | data->hwmon_dev = hwmon_device_register(&new_client->dev); |
848 | if (IS_ERR(data->hwmon_dev)) { | |
849 | err = PTR_ERR(data->hwmon_dev); | |
c1685f61 | 850 | goto ERROR4; |
943b0830 MH |
851 | } |
852 | ||
1da177e4 LT |
853 | return 0; |
854 | ||
c1685f61 MH |
855 | ERROR4: |
856 | sysfs_remove_group(&new_client->dev.kobj, &asb100_group); | |
943b0830 MH |
857 | ERROR3: |
858 | i2c_detach_client(data->lm75[1]); | |
859 | i2c_detach_client(data->lm75[0]); | |
860 | kfree(data->lm75[1]); | |
861 | kfree(data->lm75[0]); | |
1da177e4 LT |
862 | ERROR2: |
863 | i2c_detach_client(new_client); | |
864 | ERROR1: | |
865 | kfree(data); | |
866 | ERROR0: | |
867 | return err; | |
868 | } | |
869 | ||
870 | static int asb100_detach_client(struct i2c_client *client) | |
871 | { | |
943b0830 | 872 | struct asb100_data *data = i2c_get_clientdata(client); |
1da177e4 LT |
873 | int err; |
874 | ||
943b0830 | 875 | /* main client */ |
c1685f61 | 876 | if (data) { |
1beeffe4 | 877 | hwmon_device_unregister(data->hwmon_dev); |
c1685f61 MH |
878 | sysfs_remove_group(&client->dev.kobj, &asb100_group); |
879 | } | |
943b0830 | 880 | |
7bef5594 | 881 | if ((err = i2c_detach_client(client))) |
1da177e4 | 882 | return err; |
1da177e4 | 883 | |
943b0830 MH |
884 | /* main client */ |
885 | if (data) | |
886 | kfree(data); | |
887 | ||
888 | /* subclient */ | |
889 | else | |
1da177e4 | 890 | kfree(client); |
1da177e4 LT |
891 | |
892 | return 0; | |
893 | } | |
894 | ||
895 | /* The SMBus locks itself, usually, but nothing may access the chip between | |
896 | bank switches. */ | |
897 | static int asb100_read_value(struct i2c_client *client, u16 reg) | |
898 | { | |
899 | struct asb100_data *data = i2c_get_clientdata(client); | |
900 | struct i2c_client *cl; | |
901 | int res, bank; | |
902 | ||
9a61bf63 | 903 | mutex_lock(&data->lock); |
1da177e4 LT |
904 | |
905 | bank = (reg >> 8) & 0x0f; | |
906 | if (bank > 2) | |
907 | /* switch banks */ | |
908 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
909 | ||
910 | if (bank == 0 || bank > 2) { | |
911 | res = i2c_smbus_read_byte_data(client, reg & 0xff); | |
912 | } else { | |
913 | /* switch to subclient */ | |
914 | cl = data->lm75[bank - 1]; | |
915 | ||
916 | /* convert from ISA to LM75 I2C addresses */ | |
917 | switch (reg & 0xff) { | |
918 | case 0x50: /* TEMP */ | |
919 | res = swab16(i2c_smbus_read_word_data (cl, 0)); | |
920 | break; | |
921 | case 0x52: /* CONFIG */ | |
922 | res = i2c_smbus_read_byte_data(cl, 1); | |
923 | break; | |
924 | case 0x53: /* HYST */ | |
925 | res = swab16(i2c_smbus_read_word_data (cl, 2)); | |
926 | break; | |
927 | case 0x55: /* MAX */ | |
928 | default: | |
929 | res = swab16(i2c_smbus_read_word_data (cl, 3)); | |
930 | break; | |
931 | } | |
932 | } | |
933 | ||
934 | if (bank > 2) | |
935 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
936 | ||
9a61bf63 | 937 | mutex_unlock(&data->lock); |
1da177e4 LT |
938 | |
939 | return res; | |
940 | } | |
941 | ||
942 | static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value) | |
943 | { | |
944 | struct asb100_data *data = i2c_get_clientdata(client); | |
945 | struct i2c_client *cl; | |
946 | int bank; | |
947 | ||
9a61bf63 | 948 | mutex_lock(&data->lock); |
1da177e4 LT |
949 | |
950 | bank = (reg >> 8) & 0x0f; | |
951 | if (bank > 2) | |
952 | /* switch banks */ | |
953 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, bank); | |
954 | ||
955 | if (bank == 0 || bank > 2) { | |
956 | i2c_smbus_write_byte_data(client, reg & 0xff, value & 0xff); | |
957 | } else { | |
958 | /* switch to subclient */ | |
959 | cl = data->lm75[bank - 1]; | |
960 | ||
961 | /* convert from ISA to LM75 I2C addresses */ | |
962 | switch (reg & 0xff) { | |
963 | case 0x52: /* CONFIG */ | |
964 | i2c_smbus_write_byte_data(cl, 1, value & 0xff); | |
965 | break; | |
966 | case 0x53: /* HYST */ | |
967 | i2c_smbus_write_word_data(cl, 2, swab16(value)); | |
968 | break; | |
969 | case 0x55: /* MAX */ | |
970 | i2c_smbus_write_word_data(cl, 3, swab16(value)); | |
971 | break; | |
972 | } | |
973 | } | |
974 | ||
975 | if (bank > 2) | |
976 | i2c_smbus_write_byte_data(client, ASB100_REG_BANK, 0); | |
977 | ||
9a61bf63 | 978 | mutex_unlock(&data->lock); |
1da177e4 LT |
979 | } |
980 | ||
981 | static void asb100_init_client(struct i2c_client *client) | |
982 | { | |
983 | struct asb100_data *data = i2c_get_clientdata(client); | |
984 | int vid = 0; | |
985 | ||
986 | vid = asb100_read_value(client, ASB100_REG_VID_FANDIV) & 0x0f; | |
987 | vid |= (asb100_read_value(client, ASB100_REG_CHIPID) & 0x01) << 4; | |
303760b4 | 988 | data->vrm = vid_which_vrm(); |
1da177e4 LT |
989 | vid = vid_from_reg(vid, data->vrm); |
990 | ||
991 | /* Start monitoring */ | |
992 | asb100_write_value(client, ASB100_REG_CONFIG, | |
993 | (asb100_read_value(client, ASB100_REG_CONFIG) & 0xf7) | 0x01); | |
994 | } | |
995 | ||
996 | static struct asb100_data *asb100_update_device(struct device *dev) | |
997 | { | |
998 | struct i2c_client *client = to_i2c_client(dev); | |
999 | struct asb100_data *data = i2c_get_clientdata(client); | |
1000 | int i; | |
1001 | ||
9a61bf63 | 1002 | mutex_lock(&data->update_lock); |
1da177e4 LT |
1003 | |
1004 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
1005 | || !data->valid) { | |
1006 | ||
1007 | dev_dbg(&client->dev, "starting device update...\n"); | |
1008 | ||
1009 | /* 7 voltage inputs */ | |
1010 | for (i = 0; i < 7; i++) { | |
1011 | data->in[i] = asb100_read_value(client, | |
1012 | ASB100_REG_IN(i)); | |
1013 | data->in_min[i] = asb100_read_value(client, | |
1014 | ASB100_REG_IN_MIN(i)); | |
1015 | data->in_max[i] = asb100_read_value(client, | |
1016 | ASB100_REG_IN_MAX(i)); | |
1017 | } | |
1018 | ||
1019 | /* 3 fan inputs */ | |
1020 | for (i = 0; i < 3; i++) { | |
1021 | data->fan[i] = asb100_read_value(client, | |
1022 | ASB100_REG_FAN(i)); | |
1023 | data->fan_min[i] = asb100_read_value(client, | |
1024 | ASB100_REG_FAN_MIN(i)); | |
1025 | } | |
1026 | ||
1027 | /* 4 temperature inputs */ | |
1028 | for (i = 1; i <= 4; i++) { | |
1029 | data->temp[i-1] = asb100_read_value(client, | |
1030 | ASB100_REG_TEMP(i)); | |
1031 | data->temp_max[i-1] = asb100_read_value(client, | |
1032 | ASB100_REG_TEMP_MAX(i)); | |
1033 | data->temp_hyst[i-1] = asb100_read_value(client, | |
1034 | ASB100_REG_TEMP_HYST(i)); | |
1035 | } | |
1036 | ||
1037 | /* VID and fan divisors */ | |
1038 | i = asb100_read_value(client, ASB100_REG_VID_FANDIV); | |
1039 | data->vid = i & 0x0f; | |
1040 | data->vid |= (asb100_read_value(client, | |
1041 | ASB100_REG_CHIPID) & 0x01) << 4; | |
1042 | data->fan_div[0] = (i >> 4) & 0x03; | |
1043 | data->fan_div[1] = (i >> 6) & 0x03; | |
1044 | data->fan_div[2] = (asb100_read_value(client, | |
1045 | ASB100_REG_PIN) >> 6) & 0x03; | |
1046 | ||
1047 | /* PWM */ | |
1048 | data->pwm = asb100_read_value(client, ASB100_REG_PWM1); | |
1049 | ||
1050 | /* alarms */ | |
1051 | data->alarms = asb100_read_value(client, ASB100_REG_ALARM1) + | |
1052 | (asb100_read_value(client, ASB100_REG_ALARM2) << 8); | |
1053 | ||
1054 | data->last_updated = jiffies; | |
1055 | data->valid = 1; | |
1056 | ||
1057 | dev_dbg(&client->dev, "... device update complete\n"); | |
1058 | } | |
1059 | ||
9a61bf63 | 1060 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
1061 | |
1062 | return data; | |
1063 | } | |
1064 | ||
1065 | static int __init asb100_init(void) | |
1066 | { | |
1067 | return i2c_add_driver(&asb100_driver); | |
1068 | } | |
1069 | ||
1070 | static void __exit asb100_exit(void) | |
1071 | { | |
1072 | i2c_del_driver(&asb100_driver); | |
1073 | } | |
1074 | ||
1075 | MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>"); | |
1076 | MODULE_DESCRIPTION("ASB100 Bach driver"); | |
1077 | MODULE_LICENSE("GPL"); | |
1078 | ||
1079 | module_init(asb100_init); | |
1080 | module_exit(asb100_exit); | |
1081 |