blob: e452d0daf906e314f9b0a2444aa64a9b93803609 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * adm1025.c
3 *
4 * Copyright (C) 2000 Chen-Yuan Wu <gwu@esoft.com>
5 * Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
6 *
7 * The ADM1025 is a sensor chip made by Analog Devices. It reports up to 6
8 * voltages (including its own power source) and up to two temperatures
9 * (its own plus up to one external one). Voltages are scaled internally
10 * (which is not the common way) with ratios such that the nominal value
11 * of each voltage correspond to a register value of 192 (which means a
12 * resolution of about 0.5% of the nominal value). Temperature values are
13 * reported with a 1 deg resolution and a 3 deg accuracy. Complete
14 * datasheet can be obtained from Analog's website at:
15 * http://www.analog.com/Analog_Root/productPage/productHome/0,2121,ADM1025,00.html
16 *
17 * This driver also supports the ADM1025A, which differs from the ADM1025
18 * only in that it has "open-drain VID inputs while the ADM1025 has
19 * on-chip 100k pull-ups on the VID inputs". It doesn't make any
20 * difference for us.
21 *
22 * This driver also supports the NE1619, a sensor chip made by Philips.
23 * That chip is similar to the ADM1025A, with a few differences. The only
24 * difference that matters to us is that the NE1619 has only two possible
25 * addresses while the ADM1025A has a third one. Complete datasheet can be
26 * obtained from Philips's website at:
27 * http://www.semiconductors.philips.com/pip/NE1619DS.html
28 *
29 * Since the ADM1025 was the first chipset supported by this driver, most
30 * comments will refer to this chipset, but are actually general and
31 * concern all supported chipsets, unless mentioned otherwise.
32 *
33 * This program is free software; you can redistribute it and/or modify
34 * it under the terms of the GNU General Public License as published by
35 * the Free Software Foundation; either version 2 of the License, or
36 * (at your option) any later version.
37 *
38 * This program is distributed in the hope that it will be useful,
39 * but WITHOUT ANY WARRANTY; without even the implied warranty of
40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
41 * GNU General Public License for more details.
42 *
43 * You should have received a copy of the GNU General Public License
44 * along with this program; if not, write to the Free Software
45 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
46 */
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048#include <linux/module.h>
49#include <linux/init.h>
50#include <linux/slab.h>
51#include <linux/jiffies.h>
52#include <linux/i2c.h>
53#include <linux/i2c-sensor.h>
54#include <linux/i2c-vid.h>
55
56/*
57 * Addresses to scan
58 * ADM1025 and ADM1025A have three possible addresses: 0x2c, 0x2d and 0x2e.
59 * NE1619 has two possible addresses: 0x2c and 0x2d.
60 */
61
62static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
63static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
64
65/*
66 * Insmod parameters
67 */
68
69SENSORS_INSMOD_2(adm1025, ne1619);
70
71/*
72 * The ADM1025 registers
73 */
74
75#define ADM1025_REG_MAN_ID 0x3E
76#define ADM1025_REG_CHIP_ID 0x3F
77#define ADM1025_REG_CONFIG 0x40
78#define ADM1025_REG_STATUS1 0x41
79#define ADM1025_REG_STATUS2 0x42
80#define ADM1025_REG_IN(nr) (0x20 + (nr))
81#define ADM1025_REG_IN_MAX(nr) (0x2B + (nr) * 2)
82#define ADM1025_REG_IN_MIN(nr) (0x2C + (nr) * 2)
83#define ADM1025_REG_TEMP(nr) (0x26 + (nr))
84#define ADM1025_REG_TEMP_HIGH(nr) (0x37 + (nr) * 2)
85#define ADM1025_REG_TEMP_LOW(nr) (0x38 + (nr) * 2)
86#define ADM1025_REG_VID 0x47
87#define ADM1025_REG_VID4 0x49
88
89/*
90 * Conversions and various macros
91 * The ADM1025 uses signed 8-bit values for temperatures.
92 */
93
94static int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
95
96#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192)
97#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \
98 (val) * 192 >= (scale) * 255 ? 255 : \
99 ((val) * 192 + (scale)/2) / (scale))
100
101#define TEMP_FROM_REG(reg) ((reg) * 1000)
102#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \
103 (val) >= 126500 ? 127 : \
104 (((val) < 0 ? (val)-500 : (val)+500) / 1000))
105
106/*
107 * Functions declaration
108 */
109
110static int adm1025_attach_adapter(struct i2c_adapter *adapter);
111static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind);
112static void adm1025_init_client(struct i2c_client *client);
113static int adm1025_detach_client(struct i2c_client *client);
114static struct adm1025_data *adm1025_update_device(struct device *dev);
115
116/*
117 * Driver data (common to all clients)
118 */
119
120static struct i2c_driver adm1025_driver = {
121 .owner = THIS_MODULE,
122 .name = "adm1025",
123 .id = I2C_DRIVERID_ADM1025,
124 .flags = I2C_DF_NOTIFY,
125 .attach_adapter = adm1025_attach_adapter,
126 .detach_client = adm1025_detach_client,
127};
128
129/*
130 * Client data (each client gets its own)
131 */
132
133struct adm1025_data {
134 struct i2c_client client;
135 struct semaphore update_lock;
136 char valid; /* zero until following fields are valid */
137 unsigned long last_updated; /* in jiffies */
138
139 u8 in[6]; /* register value */
140 u8 in_max[6]; /* register value */
141 u8 in_min[6]; /* register value */
142 s8 temp[2]; /* register value */
143 s8 temp_min[2]; /* register value */
144 s8 temp_max[2]; /* register value */
145 u16 alarms; /* register values, combined */
146 u8 vid; /* register values, combined */
147 u8 vrm;
148};
149
150/*
151 * Sysfs stuff
152 */
153
154#define show_in(offset) \
Yani Ioannou74880c02005-05-17 06:41:12 -0400155static ssize_t show_in##offset(struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156{ \
157 struct adm1025_data *data = adm1025_update_device(dev); \
158 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \
159 in_scale[offset])); \
160} \
Yani Ioannou74880c02005-05-17 06:41:12 -0400161static ssize_t show_in##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162{ \
163 struct adm1025_data *data = adm1025_update_device(dev); \
164 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \
165 in_scale[offset])); \
166} \
Yani Ioannou74880c02005-05-17 06:41:12 -0400167static ssize_t show_in##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168{ \
169 struct adm1025_data *data = adm1025_update_device(dev); \
170 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \
171 in_scale[offset])); \
172} \
173static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL);
174show_in(0);
175show_in(1);
176show_in(2);
177show_in(3);
178show_in(4);
179show_in(5);
180
181#define show_temp(offset) \
Yani Ioannou74880c02005-05-17 06:41:12 -0400182static ssize_t show_temp##offset(struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183{ \
184 struct adm1025_data *data = adm1025_update_device(dev); \
185 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \
186} \
Yani Ioannou74880c02005-05-17 06:41:12 -0400187static ssize_t show_temp##offset##_min(struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188{ \
189 struct adm1025_data *data = adm1025_update_device(dev); \
190 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[offset-1])); \
191} \
Yani Ioannou74880c02005-05-17 06:41:12 -0400192static ssize_t show_temp##offset##_max(struct device *dev, struct device_attribute *attr, char *buf) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193{ \
194 struct adm1025_data *data = adm1025_update_device(dev); \
195 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[offset-1])); \
196}\
197static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp##offset, NULL);
198show_temp(1);
199show_temp(2);
200
201#define set_in(offset) \
Yani Ioannou74880c02005-05-17 06:41:12 -0400202static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 size_t count) \
204{ \
205 struct i2c_client *client = to_i2c_client(dev); \
206 struct adm1025_data *data = i2c_get_clientdata(client); \
207 long val = simple_strtol(buf, NULL, 10); \
208 \
209 down(&data->update_lock); \
210 data->in_min[offset] = IN_TO_REG(val, in_scale[offset]); \
211 i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(offset), \
212 data->in_min[offset]); \
213 up(&data->update_lock); \
214 return count; \
215} \
Yani Ioannou74880c02005-05-17 06:41:12 -0400216static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 size_t count) \
218{ \
219 struct i2c_client *client = to_i2c_client(dev); \
220 struct adm1025_data *data = i2c_get_clientdata(client); \
221 long val = simple_strtol(buf, NULL, 10); \
222 \
223 down(&data->update_lock); \
224 data->in_max[offset] = IN_TO_REG(val, in_scale[offset]); \
225 i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(offset), \
226 data->in_max[offset]); \
227 up(&data->update_lock); \
228 return count; \
229} \
230static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \
231 show_in##offset##_min, set_in##offset##_min); \
232static DEVICE_ATTR(in##offset##_max, S_IWUSR | S_IRUGO, \
233 show_in##offset##_max, set_in##offset##_max);
234set_in(0);
235set_in(1);
236set_in(2);
237set_in(3);
238set_in(4);
239set_in(5);
240
241#define set_temp(offset) \
Yani Ioannou74880c02005-05-17 06:41:12 -0400242static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribute *attr, const char *buf, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 size_t count) \
244{ \
245 struct i2c_client *client = to_i2c_client(dev); \
246 struct adm1025_data *data = i2c_get_clientdata(client); \
247 long val = simple_strtol(buf, NULL, 10); \
248 \
249 down(&data->update_lock); \
250 data->temp_min[offset-1] = TEMP_TO_REG(val); \
251 i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(offset-1), \
252 data->temp_min[offset-1]); \
253 up(&data->update_lock); \
254 return count; \
255} \
Yani Ioannou74880c02005-05-17 06:41:12 -0400256static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 size_t count) \
258{ \
259 struct i2c_client *client = to_i2c_client(dev); \
260 struct adm1025_data *data = i2c_get_clientdata(client); \
261 long val = simple_strtol(buf, NULL, 10); \
262 \
263 down(&data->update_lock); \
264 data->temp_max[offset-1] = TEMP_TO_REG(val); \
265 i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(offset-1), \
266 data->temp_max[offset-1]); \
267 up(&data->update_lock); \
268 return count; \
269} \
270static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \
271 show_temp##offset##_min, set_temp##offset##_min); \
272static DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
273 show_temp##offset##_max, set_temp##offset##_max);
274set_temp(1);
275set_temp(2);
276
Yani Ioannou74880c02005-05-17 06:41:12 -0400277static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278{
279 struct adm1025_data *data = adm1025_update_device(dev);
280 return sprintf(buf, "%u\n", data->alarms);
281}
282static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
283
Yani Ioannou74880c02005-05-17 06:41:12 -0400284static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285{
286 struct adm1025_data *data = adm1025_update_device(dev);
287 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
288}
Grant Coady937df8d2005-05-12 11:59:29 +1000289/* in1_ref is deprecated in favour of cpu0_vid, remove after 2005-11-11 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290static DEVICE_ATTR(in1_ref, S_IRUGO, show_vid, NULL);
Grant Coady937df8d2005-05-12 11:59:29 +1000291static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
Yani Ioannou74880c02005-05-17 06:41:12 -0400293static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294{
295 struct adm1025_data *data = adm1025_update_device(dev);
296 return sprintf(buf, "%u\n", data->vrm);
297}
Yani Ioannou74880c02005-05-17 06:41:12 -0400298static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299{
300 struct i2c_client *client = to_i2c_client(dev);
301 struct adm1025_data *data = i2c_get_clientdata(client);
302 data->vrm = simple_strtoul(buf, NULL, 10);
303 return count;
304}
305static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
306
307/*
308 * Real code
309 */
310
311static int adm1025_attach_adapter(struct i2c_adapter *adapter)
312{
313 if (!(adapter->class & I2C_CLASS_HWMON))
314 return 0;
315 return i2c_detect(adapter, &addr_data, adm1025_detect);
316}
317
318/*
319 * The following function does more than just detection. If detection
320 * succeeds, it also registers the new chip.
321 */
322static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
323{
324 struct i2c_client *new_client;
325 struct adm1025_data *data;
326 int err = 0;
327 const char *name = "";
328 u8 config;
329
330 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
331 goto exit;
332
333 if (!(data = kmalloc(sizeof(struct adm1025_data), GFP_KERNEL))) {
334 err = -ENOMEM;
335 goto exit;
336 }
337 memset(data, 0, sizeof(struct adm1025_data));
338
339 /* The common I2C client data is placed right before the
340 ADM1025-specific data. */
341 new_client = &data->client;
342 i2c_set_clientdata(new_client, data);
343 new_client->addr = address;
344 new_client->adapter = adapter;
345 new_client->driver = &adm1025_driver;
346 new_client->flags = 0;
347
348 /*
349 * Now we do the remaining detection. A negative kind means that
350 * the driver was loaded with no force parameter (default), so we
351 * must both detect and identify the chip. A zero kind means that
352 * the driver was loaded with the force parameter, the detection
353 * step shall be skipped. A positive kind means that the driver
354 * was loaded with the force parameter and a given kind of chip is
355 * requested, so both the detection and the identification steps
356 * are skipped.
357 */
358 config = i2c_smbus_read_byte_data(new_client, ADM1025_REG_CONFIG);
359 if (kind < 0) { /* detection */
360 if ((config & 0x80) != 0x00
361 || (i2c_smbus_read_byte_data(new_client,
362 ADM1025_REG_STATUS1) & 0xC0) != 0x00
363 || (i2c_smbus_read_byte_data(new_client,
364 ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
365 dev_dbg(&adapter->dev,
366 "ADM1025 detection failed at 0x%02x.\n",
367 address);
368 goto exit_free;
369 }
370 }
371
372 if (kind <= 0) { /* identification */
373 u8 man_id, chip_id;
374
375 man_id = i2c_smbus_read_byte_data(new_client,
376 ADM1025_REG_MAN_ID);
377 chip_id = i2c_smbus_read_byte_data(new_client,
378 ADM1025_REG_CHIP_ID);
379
380 if (man_id == 0x41) { /* Analog Devices */
381 if ((chip_id & 0xF0) == 0x20) { /* ADM1025/ADM1025A */
382 kind = adm1025;
383 }
384 } else
385 if (man_id == 0xA1) { /* Philips */
386 if (address != 0x2E
387 && (chip_id & 0xF0) == 0x20) { /* NE1619 */
388 kind = ne1619;
389 }
390 }
391
392 if (kind <= 0) { /* identification failed */
393 dev_info(&adapter->dev,
394 "Unsupported chip (man_id=0x%02X, "
395 "chip_id=0x%02X).\n", man_id, chip_id);
396 goto exit_free;
397 }
398 }
399
400 if (kind == adm1025) {
401 name = "adm1025";
402 } else if (kind == ne1619) {
403 name = "ne1619";
404 }
405
406 /* We can fill in the remaining client fields */
407 strlcpy(new_client->name, name, I2C_NAME_SIZE);
408 data->valid = 0;
409 init_MUTEX(&data->update_lock);
410
411 /* Tell the I2C layer a new client has arrived */
412 if ((err = i2c_attach_client(new_client)))
413 goto exit_free;
414
415 /* Initialize the ADM1025 chip */
416 adm1025_init_client(new_client);
417
418 /* Register sysfs hooks */
419 device_create_file(&new_client->dev, &dev_attr_in0_input);
420 device_create_file(&new_client->dev, &dev_attr_in1_input);
421 device_create_file(&new_client->dev, &dev_attr_in2_input);
422 device_create_file(&new_client->dev, &dev_attr_in3_input);
423 device_create_file(&new_client->dev, &dev_attr_in5_input);
424 device_create_file(&new_client->dev, &dev_attr_in0_min);
425 device_create_file(&new_client->dev, &dev_attr_in1_min);
426 device_create_file(&new_client->dev, &dev_attr_in2_min);
427 device_create_file(&new_client->dev, &dev_attr_in3_min);
428 device_create_file(&new_client->dev, &dev_attr_in5_min);
429 device_create_file(&new_client->dev, &dev_attr_in0_max);
430 device_create_file(&new_client->dev, &dev_attr_in1_max);
431 device_create_file(&new_client->dev, &dev_attr_in2_max);
432 device_create_file(&new_client->dev, &dev_attr_in3_max);
433 device_create_file(&new_client->dev, &dev_attr_in5_max);
434 device_create_file(&new_client->dev, &dev_attr_temp1_input);
435 device_create_file(&new_client->dev, &dev_attr_temp2_input);
436 device_create_file(&new_client->dev, &dev_attr_temp1_min);
437 device_create_file(&new_client->dev, &dev_attr_temp2_min);
438 device_create_file(&new_client->dev, &dev_attr_temp1_max);
439 device_create_file(&new_client->dev, &dev_attr_temp2_max);
440 device_create_file(&new_client->dev, &dev_attr_alarms);
Grant Coady937df8d2005-05-12 11:59:29 +1000441 /* in1_ref is deprecated, remove after 2005-11-11 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 device_create_file(&new_client->dev, &dev_attr_in1_ref);
Grant Coady937df8d2005-05-12 11:59:29 +1000443 device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 device_create_file(&new_client->dev, &dev_attr_vrm);
445
446 /* Pin 11 is either in4 (+12V) or VID4 */
447 if (!(config & 0x20)) {
448 device_create_file(&new_client->dev, &dev_attr_in4_input);
449 device_create_file(&new_client->dev, &dev_attr_in4_min);
450 device_create_file(&new_client->dev, &dev_attr_in4_max);
451 }
452
453 return 0;
454
455exit_free:
456 kfree(data);
457exit:
458 return err;
459}
460
461static void adm1025_init_client(struct i2c_client *client)
462{
463 u8 reg;
464 struct adm1025_data *data = i2c_get_clientdata(client);
465 int i;
466
467 data->vrm = i2c_which_vrm();
468
469 /*
470 * Set high limits
471 * Usually we avoid setting limits on driver init, but it happens
472 * that the ADM1025 comes with stupid default limits (all registers
473 * set to 0). In case the chip has not gone through any limit
474 * setting yet, we better set the high limits to the max so that
475 * no alarm triggers.
476 */
477 for (i=0; i<6; i++) {
478 reg = i2c_smbus_read_byte_data(client,
479 ADM1025_REG_IN_MAX(i));
480 if (reg == 0)
481 i2c_smbus_write_byte_data(client,
482 ADM1025_REG_IN_MAX(i),
483 0xFF);
484 }
485 for (i=0; i<2; i++) {
486 reg = i2c_smbus_read_byte_data(client,
487 ADM1025_REG_TEMP_HIGH(i));
488 if (reg == 0)
489 i2c_smbus_write_byte_data(client,
490 ADM1025_REG_TEMP_HIGH(i),
491 0x7F);
492 }
493
494 /*
495 * Start the conversions
496 */
497 reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
498 if (!(reg & 0x01))
499 i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG,
500 (reg&0x7E)|0x01);
501}
502
503static int adm1025_detach_client(struct i2c_client *client)
504{
505 int err;
506
507 if ((err = i2c_detach_client(client))) {
508 dev_err(&client->dev, "Client deregistration failed, "
509 "client not detached.\n");
510 return err;
511 }
512
513 kfree(i2c_get_clientdata(client));
514 return 0;
515}
516
517static struct adm1025_data *adm1025_update_device(struct device *dev)
518{
519 struct i2c_client *client = to_i2c_client(dev);
520 struct adm1025_data *data = i2c_get_clientdata(client);
521
522 down(&data->update_lock);
523
524 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
525 int i;
526
527 dev_dbg(&client->dev, "Updating data.\n");
528 for (i=0; i<6; i++) {
529 data->in[i] = i2c_smbus_read_byte_data(client,
530 ADM1025_REG_IN(i));
531 data->in_min[i] = i2c_smbus_read_byte_data(client,
532 ADM1025_REG_IN_MIN(i));
533 data->in_max[i] = i2c_smbus_read_byte_data(client,
534 ADM1025_REG_IN_MAX(i));
535 }
536 for (i=0; i<2; i++) {
537 data->temp[i] = i2c_smbus_read_byte_data(client,
538 ADM1025_REG_TEMP(i));
539 data->temp_min[i] = i2c_smbus_read_byte_data(client,
540 ADM1025_REG_TEMP_LOW(i));
541 data->temp_max[i] = i2c_smbus_read_byte_data(client,
542 ADM1025_REG_TEMP_HIGH(i));
543 }
544 data->alarms = i2c_smbus_read_byte_data(client,
545 ADM1025_REG_STATUS1)
546 | (i2c_smbus_read_byte_data(client,
547 ADM1025_REG_STATUS2) << 8);
548 data->vid = (i2c_smbus_read_byte_data(client,
549 ADM1025_REG_VID) & 0x0f)
550 | ((i2c_smbus_read_byte_data(client,
551 ADM1025_REG_VID4) & 0x01) << 4);
552
553 data->last_updated = jiffies;
554 data->valid = 1;
555 }
556
557 up(&data->update_lock);
558
559 return data;
560}
561
562static int __init sensors_adm1025_init(void)
563{
564 return i2c_add_driver(&adm1025_driver);
565}
566
567static void __exit sensors_adm1025_exit(void)
568{
569 i2c_del_driver(&adm1025_driver);
570}
571
572MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
573MODULE_DESCRIPTION("ADM1025 driver");
574MODULE_LICENSE("GPL");
575
576module_init(sensors_adm1025_init);
577module_exit(sensors_adm1025_exit);