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-rw-r--r--drivers/hwmon/fscpos.c641
1 files changed, 641 insertions, 0 deletions
diff --git a/drivers/hwmon/fscpos.c b/drivers/hwmon/fscpos.c
new file mode 100644
index 000000000000..3beaa6191ef4
--- /dev/null
+++ b/drivers/hwmon/fscpos.c
@@ -0,0 +1,641 @@
1/*
2 fscpos.c - Kernel module for hardware monitoring with FSC Poseidon chips
3 Copyright (C) 2004, 2005 Stefan Ott <stefan@desire.ch>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/
19
20/*
21 fujitsu siemens poseidon chip,
22 module based on the old fscpos module by Hermann Jung <hej@odn.de> and
23 the fscher module by Reinhard Nissl <rnissl@gmx.de>
24
25 original module based on lm80.c
26 Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
27 and Philip Edelbrock <phil@netroedge.com>
28
29 Thanks to Jean Delvare for reviewing my code and suggesting a lot of
30 improvements.
31*/
32
33#include <linux/module.h>
34#include <linux/slab.h>
35#include <linux/i2c.h>
36#include <linux/i2c-sensor.h>
37#include <linux/init.h>
38
39/*
40 * Addresses to scan
41 */
42static unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
43static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
44
45/*
46 * Insmod parameters
47 */
48SENSORS_INSMOD_1(fscpos);
49
50/*
51 * The FSCPOS registers
52 */
53
54/* chip identification */
55#define FSCPOS_REG_IDENT_0 0x00
56#define FSCPOS_REG_IDENT_1 0x01
57#define FSCPOS_REG_IDENT_2 0x02
58#define FSCPOS_REG_REVISION 0x03
59
60/* global control and status */
61#define FSCPOS_REG_EVENT_STATE 0x04
62#define FSCPOS_REG_CONTROL 0x05
63
64/* watchdog */
65#define FSCPOS_REG_WDOG_PRESET 0x28
66#define FSCPOS_REG_WDOG_STATE 0x23
67#define FSCPOS_REG_WDOG_CONTROL 0x21
68
69/* voltages */
70#define FSCPOS_REG_VOLT_12 0x45
71#define FSCPOS_REG_VOLT_5 0x42
72#define FSCPOS_REG_VOLT_BATT 0x48
73
74/* fans - the chip does not support minimum speed for fan2 */
75static u8 FSCPOS_REG_PWM[] = { 0x55, 0x65 };
76static u8 FSCPOS_REG_FAN_ACT[] = { 0x0e, 0x6b, 0xab };
77static u8 FSCPOS_REG_FAN_STATE[] = { 0x0d, 0x62, 0xa2 };
78static u8 FSCPOS_REG_FAN_RIPPLE[] = { 0x0f, 0x6f, 0xaf };
79
80/* temperatures */
81static u8 FSCPOS_REG_TEMP_ACT[] = { 0x64, 0x32, 0x35 };
82static u8 FSCPOS_REG_TEMP_STATE[] = { 0x71, 0x81, 0x91 };
83
84/*
85 * Functions declaration
86 */
87static int fscpos_attach_adapter(struct i2c_adapter *adapter);
88static int fscpos_detect(struct i2c_adapter *adapter, int address, int kind);
89static int fscpos_detach_client(struct i2c_client *client);
90
91static int fscpos_read_value(struct i2c_client *client, u8 register);
92static int fscpos_write_value(struct i2c_client *client, u8 register, u8 value);
93static struct fscpos_data *fscpos_update_device(struct device *dev);
94static void fscpos_init_client(struct i2c_client *client);
95
96static void reset_fan_alarm(struct i2c_client *client, int nr);
97
98/*
99 * Driver data (common to all clients)
100 */
101static struct i2c_driver fscpos_driver = {
102 .owner = THIS_MODULE,
103 .name = "fscpos",
104 .id = I2C_DRIVERID_FSCPOS,
105 .flags = I2C_DF_NOTIFY,
106 .attach_adapter = fscpos_attach_adapter,
107 .detach_client = fscpos_detach_client,
108};
109
110/*
111 * Client data (each client gets its own)
112 */
113struct fscpos_data {
114 struct i2c_client client;
115 struct semaphore update_lock;
116 char valid; /* 0 until following fields are valid */
117 unsigned long last_updated; /* In jiffies */
118
119 /* register values */
120 u8 revision; /* revision of chip */
121 u8 global_event; /* global event status */
122 u8 global_control; /* global control register */
123 u8 wdog_control; /* watchdog control */
124 u8 wdog_state; /* watchdog status */
125 u8 wdog_preset; /* watchdog preset */
126 u8 volt[3]; /* 12, 5, battery current */
127 u8 temp_act[3]; /* temperature */
128 u8 temp_status[3]; /* status of sensor */
129 u8 fan_act[3]; /* fans revolutions per second */
130 u8 fan_status[3]; /* fan status */
131 u8 pwm[2]; /* fan min value for rps */
132 u8 fan_ripple[3]; /* divider for rps */
133};
134
135/* Temperature */
136#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
137
138static ssize_t show_temp_input(struct fscpos_data *data, char *buf, int nr)
139{
140 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[nr - 1]));
141}
142
143static ssize_t show_temp_status(struct fscpos_data *data, char *buf, int nr)
144{
145 /* bits 2..7 reserved => mask with 0x03 */
146 return sprintf(buf, "%u\n", data->temp_status[nr - 1] & 0x03);
147}
148
149static ssize_t show_temp_reset(struct fscpos_data *data, char *buf, int nr)
150{
151 return sprintf(buf, "1\n");
152}
153
154static ssize_t set_temp_reset(struct i2c_client *client, struct fscpos_data
155 *data, const char *buf, size_t count, int nr, int reg)
156{
157 unsigned long v = simple_strtoul(buf, NULL, 10);
158 if (v != 1) {
159 dev_err(&client->dev, "temp_reset value %ld not supported. "
160 "Use 1 to reset the alarm!\n", v);
161 return -EINVAL;
162 }
163
164 dev_info(&client->dev, "You used the temp_reset feature which has not "
165 "been proplerly tested. Please report your "
166 "experience to the module author.\n");
167
168 /* Supported value: 2 (clears the status) */
169 fscpos_write_value(client, FSCPOS_REG_TEMP_STATE[nr], 2);
170 return count;
171}
172
173/* Fans */
174#define RPM_FROM_REG(val) ((val) * 60)
175
176static ssize_t show_fan_status(struct fscpos_data *data, char *buf, int nr)
177{
178 /* bits 0..1, 3..7 reserved => mask with 0x04 */
179 return sprintf(buf, "%u\n", data->fan_status[nr - 1] & 0x04);
180}
181
182static ssize_t show_fan_input(struct fscpos_data *data, char *buf, int nr)
183{
184 return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[nr - 1]));
185}
186
187static ssize_t show_fan_ripple(struct fscpos_data *data, char *buf, int nr)
188{
189 /* bits 2..7 reserved => mask with 0x03 */
190 return sprintf(buf, "%u\n", data->fan_ripple[nr - 1] & 0x03);
191}
192
193static ssize_t set_fan_ripple(struct i2c_client *client, struct fscpos_data
194 *data, const char *buf, size_t count, int nr, int reg)
195{
196 /* supported values: 2, 4, 8 */
197 unsigned long v = simple_strtoul(buf, NULL, 10);
198
199 switch (v) {
200 case 2: v = 1; break;
201 case 4: v = 2; break;
202 case 8: v = 3; break;
203 default:
204 dev_err(&client->dev, "fan_ripple value %ld not supported. "
205 "Must be one of 2, 4 or 8!\n", v);
206 return -EINVAL;
207 }
208
209 down(&data->update_lock);
210 /* bits 2..7 reserved => mask with 0x03 */
211 data->fan_ripple[nr - 1] &= ~0x03;
212 data->fan_ripple[nr - 1] |= v;
213
214 fscpos_write_value(client, reg, data->fan_ripple[nr - 1]);
215 up(&data->update_lock);
216 return count;
217}
218
219static ssize_t show_pwm(struct fscpos_data *data, char *buf, int nr)
220{
221 return sprintf(buf, "%u\n", data->pwm[nr - 1]);
222}
223
224static ssize_t set_pwm(struct i2c_client *client, struct fscpos_data *data,
225 const char *buf, size_t count, int nr, int reg)
226{
227 unsigned long v = simple_strtoul(buf, NULL, 10);
228
229 /* Range: 0..255 */
230 if (v < 0) v = 0;
231 if (v > 255) v = 255;
232
233 down(&data->update_lock);
234 data->pwm[nr - 1] = v;
235 fscpos_write_value(client, reg, data->pwm[nr - 1]);
236 up(&data->update_lock);
237 return count;
238}
239
240static void reset_fan_alarm(struct i2c_client *client, int nr)
241{
242 fscpos_write_value(client, FSCPOS_REG_FAN_STATE[nr], 4);
243}
244
245/* Volts */
246#define VOLT_FROM_REG(val, mult) ((val) * (mult) / 255)
247
248static ssize_t show_volt_12(struct device *dev, struct device_attribute *attr, char *buf)
249{
250 struct fscpos_data *data = fscpos_update_device(dev);
251 return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[0], 14200));
252}
253
254static ssize_t show_volt_5(struct device *dev, struct device_attribute *attr, char *buf)
255{
256 struct fscpos_data *data = fscpos_update_device(dev);
257 return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[1], 6600));
258}
259
260static ssize_t show_volt_batt(struct device *dev, struct device_attribute *attr, char *buf)
261{
262 struct fscpos_data *data = fscpos_update_device(dev);
263 return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[2], 3300));
264}
265
266/* Watchdog */
267static ssize_t show_wdog_control(struct fscpos_data *data, char *buf)
268{
269 /* bits 0..3 reserved, bit 6 write only => mask with 0xb0 */
270 return sprintf(buf, "%u\n", data->wdog_control & 0xb0);
271}
272
273static ssize_t set_wdog_control(struct i2c_client *client, struct fscpos_data
274 *data, const char *buf, size_t count, int reg)
275{
276 /* bits 0..3 reserved => mask with 0xf0 */
277 unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
278
279 down(&data->update_lock);
280 data->wdog_control &= ~0xf0;
281 data->wdog_control |= v;
282 fscpos_write_value(client, reg, data->wdog_control);
283 up(&data->update_lock);
284 return count;
285}
286
287static ssize_t show_wdog_state(struct fscpos_data *data, char *buf)
288{
289 /* bits 0, 2..7 reserved => mask with 0x02 */
290 return sprintf(buf, "%u\n", data->wdog_state & 0x02);
291}
292
293static ssize_t set_wdog_state(struct i2c_client *client, struct fscpos_data
294 *data, const char *buf, size_t count, int reg)
295{
296 unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
297
298 /* Valid values: 2 (clear) */
299 if (v != 2) {
300 dev_err(&client->dev, "wdog_state value %ld not supported. "
301 "Must be 2 to clear the state!\n", v);
302 return -EINVAL;
303 }
304
305 down(&data->update_lock);
306 data->wdog_state &= ~v;
307 fscpos_write_value(client, reg, v);
308 up(&data->update_lock);
309 return count;
310}
311
312static ssize_t show_wdog_preset(struct fscpos_data *data, char *buf)
313{
314 return sprintf(buf, "%u\n", data->wdog_preset);
315}
316
317static ssize_t set_wdog_preset(struct i2c_client *client, struct fscpos_data
318 *data, const char *buf, size_t count, int reg)
319{
320 unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
321
322 down(&data->update_lock);
323 data->wdog_preset = v;
324 fscpos_write_value(client, reg, data->wdog_preset);
325 up(&data->update_lock);
326 return count;
327}
328
329/* Event */
330static ssize_t show_event(struct device *dev, struct device_attribute *attr, char *buf)
331{
332 /* bits 5..7 reserved => mask with 0x1f */
333 struct fscpos_data *data = fscpos_update_device(dev);
334 return sprintf(buf, "%u\n", data->global_event & 0x9b);
335}
336
337/*
338 * Sysfs stuff
339 */
340#define create_getter(kind, sub) \
341 static ssize_t sysfs_show_##kind##sub(struct device *dev, struct device_attribute *attr, char *buf) \
342 { \
343 struct fscpos_data *data = fscpos_update_device(dev); \
344 return show_##kind##sub(data, buf); \
345 }
346
347#define create_getter_n(kind, offset, sub) \
348 static ssize_t sysfs_show_##kind##offset##sub(struct device *dev, struct device_attribute *attr, char\
349 *buf) \
350 { \
351 struct fscpos_data *data = fscpos_update_device(dev); \
352 return show_##kind##sub(data, buf, offset); \
353 }
354
355#define create_setter(kind, sub, reg) \
356 static ssize_t sysfs_set_##kind##sub (struct device *dev, struct device_attribute *attr, const char \
357 *buf, size_t count) \
358 { \
359 struct i2c_client *client = to_i2c_client(dev); \
360 struct fscpos_data *data = i2c_get_clientdata(client); \
361 return set_##kind##sub(client, data, buf, count, reg); \
362 }
363
364#define create_setter_n(kind, offset, sub, reg) \
365 static ssize_t sysfs_set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, \
366 const char *buf, size_t count) \
367 { \
368 struct i2c_client *client = to_i2c_client(dev); \
369 struct fscpos_data *data = i2c_get_clientdata(client); \
370 return set_##kind##sub(client, data, buf, count, offset, reg);\
371 }
372
373#define create_sysfs_device_ro(kind, sub, offset) \
374 static DEVICE_ATTR(kind##offset##sub, S_IRUGO, \
375 sysfs_show_##kind##offset##sub, NULL);
376
377#define create_sysfs_device_rw(kind, sub, offset) \
378 static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, \
379 sysfs_show_##kind##offset##sub, sysfs_set_##kind##offset##sub);
380
381#define sysfs_ro_n(kind, sub, offset) \
382 create_getter_n(kind, offset, sub); \
383 create_sysfs_device_ro(kind, sub, offset);
384
385#define sysfs_rw_n(kind, sub, offset, reg) \
386 create_getter_n(kind, offset, sub); \
387 create_setter_n(kind, offset, sub, reg); \
388 create_sysfs_device_rw(kind, sub, offset);
389
390#define sysfs_rw(kind, sub, reg) \
391 create_getter(kind, sub); \
392 create_setter(kind, sub, reg); \
393 create_sysfs_device_rw(kind, sub,);
394
395#define sysfs_fan_with_min(offset, reg_status, reg_ripple, reg_min) \
396 sysfs_fan(offset, reg_status, reg_ripple); \
397 sysfs_rw_n(pwm,, offset, reg_min);
398
399#define sysfs_fan(offset, reg_status, reg_ripple) \
400 sysfs_ro_n(fan, _input, offset); \
401 sysfs_ro_n(fan, _status, offset); \
402 sysfs_rw_n(fan, _ripple, offset, reg_ripple);
403
404#define sysfs_temp(offset, reg_status) \
405 sysfs_ro_n(temp, _input, offset); \
406 sysfs_ro_n(temp, _status, offset); \
407 sysfs_rw_n(temp, _reset, offset, reg_status);
408
409#define sysfs_watchdog(reg_wdog_preset, reg_wdog_state, reg_wdog_control) \
410 sysfs_rw(wdog, _control, reg_wdog_control); \
411 sysfs_rw(wdog, _preset, reg_wdog_preset); \
412 sysfs_rw(wdog, _state, reg_wdog_state);
413
414sysfs_fan_with_min(1, FSCPOS_REG_FAN_STATE[0], FSCPOS_REG_FAN_RIPPLE[0],
415 FSCPOS_REG_PWM[0]);
416sysfs_fan_with_min(2, FSCPOS_REG_FAN_STATE[1], FSCPOS_REG_FAN_RIPPLE[1],
417 FSCPOS_REG_PWM[1]);
418sysfs_fan(3, FSCPOS_REG_FAN_STATE[2], FSCPOS_REG_FAN_RIPPLE[2]);
419
420sysfs_temp(1, FSCPOS_REG_TEMP_STATE[0]);
421sysfs_temp(2, FSCPOS_REG_TEMP_STATE[1]);
422sysfs_temp(3, FSCPOS_REG_TEMP_STATE[2]);
423
424sysfs_watchdog(FSCPOS_REG_WDOG_PRESET, FSCPOS_REG_WDOG_STATE,
425 FSCPOS_REG_WDOG_CONTROL);
426
427static DEVICE_ATTR(event, S_IRUGO, show_event, NULL);
428static DEVICE_ATTR(in0_input, S_IRUGO, show_volt_12, NULL);
429static DEVICE_ATTR(in1_input, S_IRUGO, show_volt_5, NULL);
430static DEVICE_ATTR(in2_input, S_IRUGO, show_volt_batt, NULL);
431
432static int fscpos_attach_adapter(struct i2c_adapter *adapter)
433{
434 if (!(adapter->class & I2C_CLASS_HWMON))
435 return 0;
436 return i2c_detect(adapter, &addr_data, fscpos_detect);
437}
438
439int fscpos_detect(struct i2c_adapter *adapter, int address, int kind)
440{
441 struct i2c_client *new_client;
442 struct fscpos_data *data;
443 int err = 0;
444
445 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
446 goto exit;
447
448 /*
449 * OK. For now, we presume we have a valid client. We now create the
450 * client structure, even though we cannot fill it completely yet.
451 * But it allows us to access fscpos_{read,write}_value.
452 */
453
454 if (!(data = kmalloc(sizeof(struct fscpos_data), GFP_KERNEL))) {
455 err = -ENOMEM;
456 goto exit;
457 }
458 memset(data, 0, sizeof(struct fscpos_data));
459
460 new_client = &data->client;
461 i2c_set_clientdata(new_client, data);
462 new_client->addr = address;
463 new_client->adapter = adapter;
464 new_client->driver = &fscpos_driver;
465 new_client->flags = 0;
466
467 /* Do the remaining detection unless force or force_fscpos parameter */
468 if (kind < 0) {
469 if ((fscpos_read_value(new_client, FSCPOS_REG_IDENT_0)
470 != 0x50) /* 'P' */
471 || (fscpos_read_value(new_client, FSCPOS_REG_IDENT_1)
472 != 0x45) /* 'E' */
473 || (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2)
474 != 0x47))/* 'G' */
475 {
476 dev_dbg(&new_client->dev, "fscpos detection failed\n");
477 goto exit_free;
478 }
479 }
480
481 /* Fill in the remaining client fields and put it in the global list */
482 strlcpy(new_client->name, "fscpos", I2C_NAME_SIZE);
483
484 data->valid = 0;
485 init_MUTEX(&data->update_lock);
486
487 /* Tell the I2C layer a new client has arrived */
488 if ((err = i2c_attach_client(new_client)))
489 goto exit_free;
490
491 /* Inizialize the fscpos chip */
492 fscpos_init_client(new_client);
493
494 /* Announce that the chip was found */
495 dev_info(&new_client->dev, "Found fscpos chip, rev %u\n", data->revision);
496
497 /* Register sysfs hooks */
498 device_create_file(&new_client->dev, &dev_attr_event);
499 device_create_file(&new_client->dev, &dev_attr_in0_input);
500 device_create_file(&new_client->dev, &dev_attr_in1_input);
501 device_create_file(&new_client->dev, &dev_attr_in2_input);
502 device_create_file(&new_client->dev, &dev_attr_wdog_control);
503 device_create_file(&new_client->dev, &dev_attr_wdog_preset);
504 device_create_file(&new_client->dev, &dev_attr_wdog_state);
505 device_create_file(&new_client->dev, &dev_attr_temp1_input);
506 device_create_file(&new_client->dev, &dev_attr_temp1_status);
507 device_create_file(&new_client->dev, &dev_attr_temp1_reset);
508 device_create_file(&new_client->dev, &dev_attr_temp2_input);
509 device_create_file(&new_client->dev, &dev_attr_temp2_status);
510 device_create_file(&new_client->dev, &dev_attr_temp2_reset);
511 device_create_file(&new_client->dev, &dev_attr_temp3_input);
512 device_create_file(&new_client->dev, &dev_attr_temp3_status);
513 device_create_file(&new_client->dev, &dev_attr_temp3_reset);
514 device_create_file(&new_client->dev, &dev_attr_fan1_input);
515 device_create_file(&new_client->dev, &dev_attr_fan1_status);
516 device_create_file(&new_client->dev, &dev_attr_fan1_ripple);
517 device_create_file(&new_client->dev, &dev_attr_pwm1);
518 device_create_file(&new_client->dev, &dev_attr_fan2_input);
519 device_create_file(&new_client->dev, &dev_attr_fan2_status);
520 device_create_file(&new_client->dev, &dev_attr_fan2_ripple);
521 device_create_file(&new_client->dev, &dev_attr_pwm2);
522 device_create_file(&new_client->dev, &dev_attr_fan3_input);
523 device_create_file(&new_client->dev, &dev_attr_fan3_status);
524 device_create_file(&new_client->dev, &dev_attr_fan3_ripple);
525
526 return 0;
527
528exit_free:
529 kfree(data);
530exit:
531 return err;
532}
533
534static int fscpos_detach_client(struct i2c_client *client)
535{
536 int err;
537
538 if ((err = i2c_detach_client(client))) {
539 dev_err(&client->dev, "Client deregistration failed, client"
540 " not detached.\n");
541 return err;
542 }
543 kfree(i2c_get_clientdata(client));
544 return 0;
545}
546
547static int fscpos_read_value(struct i2c_client *client, u8 reg)
548{
549 dev_dbg(&client->dev, "Read reg 0x%02x\n", reg);
550 return i2c_smbus_read_byte_data(client, reg);
551}
552
553static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value)
554{
555 dev_dbg(&client->dev, "Write reg 0x%02x, val 0x%02x\n", reg, value);
556 return i2c_smbus_write_byte_data(client, reg, value);
557}
558
559/* Called when we have found a new FSCPOS chip */
560static void fscpos_init_client(struct i2c_client *client)
561{
562 struct fscpos_data *data = i2c_get_clientdata(client);
563
564 /* read revision from chip */
565 data->revision = fscpos_read_value(client, FSCPOS_REG_REVISION);
566}
567
568static struct fscpos_data *fscpos_update_device(struct device *dev)
569{
570 struct i2c_client *client = to_i2c_client(dev);
571 struct fscpos_data *data = i2c_get_clientdata(client);
572
573 down(&data->update_lock);
574
575 if ((jiffies - data->last_updated > 2 * HZ) ||
576 (jiffies < data->last_updated) || !data->valid) {
577 int i;
578
579 dev_dbg(&client->dev, "Starting fscpos update\n");
580
581 for (i = 0; i < 3; i++) {
582 data->temp_act[i] = fscpos_read_value(client,
583 FSCPOS_REG_TEMP_ACT[i]);
584 data->temp_status[i] = fscpos_read_value(client,
585 FSCPOS_REG_TEMP_STATE[i]);
586 data->fan_act[i] = fscpos_read_value(client,
587 FSCPOS_REG_FAN_ACT[i]);
588 data->fan_status[i] = fscpos_read_value(client,
589 FSCPOS_REG_FAN_STATE[i]);
590 data->fan_ripple[i] = fscpos_read_value(client,
591 FSCPOS_REG_FAN_RIPPLE[i]);
592 if (i < 2) {
593 /* fan2_min is not supported by the chip */
594 data->pwm[i] = fscpos_read_value(client,
595 FSCPOS_REG_PWM[i]);
596 }
597 /* reset fan status if speed is back to > 0 */
598 if (data->fan_status[i] != 0 && data->fan_act[i] > 0) {
599 reset_fan_alarm(client, i);
600 }
601 }
602
603 data->volt[0] = fscpos_read_value(client, FSCPOS_REG_VOLT_12);
604 data->volt[1] = fscpos_read_value(client, FSCPOS_REG_VOLT_5);
605 data->volt[2] = fscpos_read_value(client, FSCPOS_REG_VOLT_BATT);
606
607 data->wdog_preset = fscpos_read_value(client,
608 FSCPOS_REG_WDOG_PRESET);
609 data->wdog_state = fscpos_read_value(client,
610 FSCPOS_REG_WDOG_STATE);
611 data->wdog_control = fscpos_read_value(client,
612 FSCPOS_REG_WDOG_CONTROL);
613
614 data->global_event = fscpos_read_value(client,
615 FSCPOS_REG_EVENT_STATE);
616
617 data->last_updated = jiffies;
618 data->valid = 1;
619 }
620 up(&data->update_lock);
621 return data;
622}
623
624static int __init sm_fscpos_init(void)
625{
626 return i2c_add_driver(&fscpos_driver);
627}
628
629static void __exit sm_fscpos_exit(void)
630{
631 i2c_del_driver(&fscpos_driver);
632}
633
634MODULE_AUTHOR("Stefan Ott <stefan@desire.ch> based on work from Hermann Jung "
635 "<hej@odn.de>, Frodo Looijaard <frodol@dds.nl>"
636 " and Philip Edelbrock <phil@netroedge.com>");
637MODULE_DESCRIPTION("fujitsu siemens poseidon chip driver");
638MODULE_LICENSE("GPL");
639
640module_init(sm_fscpos_init);
641module_exit(sm_fscpos_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 13:27:22 -0500