2 * gl518sm.c - Part of lm_sensors, Linux kernel modules for hardware
4 * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
5 * Kyosti Malkki <kmalkki@cc.hut.fi>
6 * Copyright (C) 2004 Hong-Gunn Chew <hglinux@gunnet.org> and
7 * Jean Delvare <khali@linux-fr.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * Ported to Linux 2.6 by Hong-Gunn Chew with the help of Jean Delvare
24 * and advice of Greg Kroah-Hartman.
26 * Notes about the port:
27 * Release 0x00 of the GL518SM chipset doesn't support reading of in0,
28 * in1 nor in2. The original driver had an ugly workaround to get them
29 * anyway (changing limits and watching alarms trigger and wear off).
30 * We did not keep that part of the original driver in the Linux 2.6
31 * version, since it was making the driver significantly more complex
32 * with no real benefit.
35 #include <linux/module.h>
36 #include <linux/init.h>
37 #include <linux/slab.h>
38 #include <linux/jiffies.h>
39 #include <linux/i2c.h>
40 #include <linux/hwmon.h>
41 #include <linux/err.h>
42 #include <linux/mutex.h>
43 #include <linux/sysfs.h>
45 /* Addresses to scan */
46 static unsigned short normal_i2c
[] = { 0x2c, 0x2d, I2C_CLIENT_END
};
48 /* Insmod parameters */
49 I2C_CLIENT_INSMOD_2(gl518sm_r00
, gl518sm_r80
);
51 /* Many GL518 constants specified below */
53 /* The GL518 registers */
54 #define GL518_REG_CHIP_ID 0x00
55 #define GL518_REG_REVISION 0x01
56 #define GL518_REG_VENDOR_ID 0x02
57 #define GL518_REG_CONF 0x03
58 #define GL518_REG_TEMP_IN 0x04
59 #define GL518_REG_TEMP_MAX 0x05
60 #define GL518_REG_TEMP_HYST 0x06
61 #define GL518_REG_FAN_COUNT 0x07
62 #define GL518_REG_FAN_LIMIT 0x08
63 #define GL518_REG_VIN1_LIMIT 0x09
64 #define GL518_REG_VIN2_LIMIT 0x0a
65 #define GL518_REG_VIN3_LIMIT 0x0b
66 #define GL518_REG_VDD_LIMIT 0x0c
67 #define GL518_REG_VIN3 0x0d
68 #define GL518_REG_MISC 0x0f
69 #define GL518_REG_ALARM 0x10
70 #define GL518_REG_MASK 0x11
71 #define GL518_REG_INT 0x12
72 #define GL518_REG_VIN2 0x13
73 #define GL518_REG_VIN1 0x14
74 #define GL518_REG_VDD 0x15
78 * Conversions. Rounding and limit checking is only done on the TO_REG
79 * variants. Note that you should be a bit careful with which arguments
80 * these macros are called: arguments may be evaluated more than once.
81 * Fixing this is just not worth it.
84 #define RAW_FROM_REG(val) val
86 #define BOOL_FROM_REG(val) ((val)?0:1)
87 #define BOOL_TO_REG(val) ((val)?0:1)
89 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0? \
90 (val)-500:(val)+500)/1000)+119),0,255))
91 #define TEMP_FROM_REG(val) (((val) - 119) * 1000)
93 static inline u8
FAN_TO_REG(long rpm
, int div
)
98 rpmdiv
= SENSORS_LIMIT(rpm
, 1, 1920000) * div
;
99 return SENSORS_LIMIT((960000 + rpmdiv
/ 2) / rpmdiv
, 1, 255);
101 #define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (960000/((val)*(div))))
103 #define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255))
104 #define IN_FROM_REG(val) ((val)*19)
106 #define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255))
107 #define VDD_FROM_REG(val) (((val)*95+2)/4)
109 #define DIV_TO_REG(val) ((val)==4?2:(val)==2?1:(val)==1?0:3)
110 #define DIV_FROM_REG(val) (1 << (val))
112 #define BEEP_MASK_TO_REG(val) ((val) & 0x7f & data->alarm_mask)
113 #define BEEP_MASK_FROM_REG(val) ((val) & 0x7f)
115 /* Each client has this additional data */
117 struct i2c_client client
;
118 struct device
*hwmon_dev
;
121 struct mutex update_lock
;
122 char valid
; /* !=0 if following fields are valid */
123 unsigned long last_updated
; /* In jiffies */
125 u8 voltage_in
[4]; /* Register values; [0] = VDD */
126 u8 voltage_min
[4]; /* Register values; [0] = VDD */
127 u8 voltage_max
[4]; /* Register values; [0] = VDD */
130 u8 fan_div
[2]; /* Register encoding, shifted right */
131 u8 fan_auto1
; /* Boolean */
132 u8 temp_in
; /* Register values */
133 u8 temp_max
; /* Register values */
134 u8 temp_hyst
; /* Register values */
135 u8 alarms
; /* Register value */
137 u8 beep_mask
; /* Register value */
138 u8 beep_enable
; /* Boolean */
141 static int gl518_attach_adapter(struct i2c_adapter
*adapter
);
142 static int gl518_detect(struct i2c_adapter
*adapter
, int address
, int kind
);
143 static void gl518_init_client(struct i2c_client
*client
);
144 static int gl518_detach_client(struct i2c_client
*client
);
145 static int gl518_read_value(struct i2c_client
*client
, u8 reg
);
146 static int gl518_write_value(struct i2c_client
*client
, u8 reg
, u16 value
);
147 static struct gl518_data
*gl518_update_device(struct device
*dev
);
149 /* This is the driver that will be inserted */
150 static struct i2c_driver gl518_driver
= {
154 .attach_adapter
= gl518_attach_adapter
,
155 .detach_client
= gl518_detach_client
,
162 #define show(type, suffix, value) \
163 static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
165 struct gl518_data *data = gl518_update_device(dev); \
166 return sprintf(buf, "%d\n", type##_FROM_REG(data->value)); \
169 #define show_fan(suffix, value, index) \
170 static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
172 struct gl518_data *data = gl518_update_device(dev); \
173 return sprintf(buf, "%d\n", FAN_FROM_REG(data->value[index], \
174 DIV_FROM_REG(data->fan_div[index]))); \
177 show(TEMP
, temp_input1
, temp_in
);
178 show(TEMP
, temp_max1
, temp_max
);
179 show(TEMP
, temp_hyst1
, temp_hyst
);
180 show(BOOL
, fan_auto1
, fan_auto1
);
181 show_fan(fan_input1
, fan_in
, 0);
182 show_fan(fan_input2
, fan_in
, 1);
183 show_fan(fan_min1
, fan_min
, 0);
184 show_fan(fan_min2
, fan_min
, 1);
185 show(DIV
, fan_div1
, fan_div
[0]);
186 show(DIV
, fan_div2
, fan_div
[1]);
187 show(VDD
, in_input0
, voltage_in
[0]);
188 show(IN
, in_input1
, voltage_in
[1]);
189 show(IN
, in_input2
, voltage_in
[2]);
190 show(IN
, in_input3
, voltage_in
[3]);
191 show(VDD
, in_min0
, voltage_min
[0]);
192 show(IN
, in_min1
, voltage_min
[1]);
193 show(IN
, in_min2
, voltage_min
[2]);
194 show(IN
, in_min3
, voltage_min
[3]);
195 show(VDD
, in_max0
, voltage_max
[0]);
196 show(IN
, in_max1
, voltage_max
[1]);
197 show(IN
, in_max2
, voltage_max
[2]);
198 show(IN
, in_max3
, voltage_max
[3]);
199 show(RAW
, alarms
, alarms
);
200 show(BOOL
, beep_enable
, beep_enable
);
201 show(BEEP_MASK
, beep_mask
, beep_mask
);
203 #define set(type, suffix, value, reg) \
204 static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
207 struct i2c_client *client = to_i2c_client(dev); \
208 struct gl518_data *data = i2c_get_clientdata(client); \
209 long val = simple_strtol(buf, NULL, 10); \
211 mutex_lock(&data->update_lock); \
212 data->value = type##_TO_REG(val); \
213 gl518_write_value(client, reg, data->value); \
214 mutex_unlock(&data->update_lock); \
218 #define set_bits(type, suffix, value, reg, mask, shift) \
219 static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
222 struct i2c_client *client = to_i2c_client(dev); \
223 struct gl518_data *data = i2c_get_clientdata(client); \
225 unsigned long val = simple_strtoul(buf, NULL, 10); \
227 mutex_lock(&data->update_lock); \
228 regvalue = gl518_read_value(client, reg); \
229 data->value = type##_TO_REG(val); \
230 regvalue = (regvalue & ~mask) | (data->value << shift); \
231 gl518_write_value(client, reg, regvalue); \
232 mutex_unlock(&data->update_lock); \
236 #define set_low(type, suffix, value, reg) \
237 set_bits(type, suffix, value, reg, 0x00ff, 0)
238 #define set_high(type, suffix, value, reg) \
239 set_bits(type, suffix, value, reg, 0xff00, 8)
241 set(TEMP
, temp_max1
, temp_max
, GL518_REG_TEMP_MAX
);
242 set(TEMP
, temp_hyst1
, temp_hyst
, GL518_REG_TEMP_HYST
);
243 set_bits(BOOL
, fan_auto1
, fan_auto1
, GL518_REG_MISC
, 0x08, 3);
244 set_bits(DIV
, fan_div1
, fan_div
[0], GL518_REG_MISC
, 0xc0, 6);
245 set_bits(DIV
, fan_div2
, fan_div
[1], GL518_REG_MISC
, 0x30, 4);
246 set_low(VDD
, in_min0
, voltage_min
[0], GL518_REG_VDD_LIMIT
);
247 set_low(IN
, in_min1
, voltage_min
[1], GL518_REG_VIN1_LIMIT
);
248 set_low(IN
, in_min2
, voltage_min
[2], GL518_REG_VIN2_LIMIT
);
249 set_low(IN
, in_min3
, voltage_min
[3], GL518_REG_VIN3_LIMIT
);
250 set_high(VDD
, in_max0
, voltage_max
[0], GL518_REG_VDD_LIMIT
);
251 set_high(IN
, in_max1
, voltage_max
[1], GL518_REG_VIN1_LIMIT
);
252 set_high(IN
, in_max2
, voltage_max
[2], GL518_REG_VIN2_LIMIT
);
253 set_high(IN
, in_max3
, voltage_max
[3], GL518_REG_VIN3_LIMIT
);
254 set_bits(BOOL
, beep_enable
, beep_enable
, GL518_REG_CONF
, 0x04, 2);
255 set(BEEP_MASK
, beep_mask
, beep_mask
, GL518_REG_ALARM
);
257 static ssize_t
set_fan_min1(struct device
*dev
, struct device_attribute
*attr
, const char *buf
, size_t count
)
259 struct i2c_client
*client
= to_i2c_client(dev
);
260 struct gl518_data
*data
= i2c_get_clientdata(client
);
262 unsigned long val
= simple_strtoul(buf
, NULL
, 10);
264 mutex_lock(&data
->update_lock
);
265 regvalue
= gl518_read_value(client
, GL518_REG_FAN_LIMIT
);
266 data
->fan_min
[0] = FAN_TO_REG(val
,
267 DIV_FROM_REG(data
->fan_div
[0]));
268 regvalue
= (regvalue
& 0x00ff) | (data
->fan_min
[0] << 8);
269 gl518_write_value(client
, GL518_REG_FAN_LIMIT
, regvalue
);
271 data
->beep_mask
= gl518_read_value(client
, GL518_REG_ALARM
);
272 if (data
->fan_min
[0] == 0)
273 data
->alarm_mask
&= ~0x20;
275 data
->alarm_mask
|= 0x20;
276 data
->beep_mask
&= data
->alarm_mask
;
277 gl518_write_value(client
, GL518_REG_ALARM
, data
->beep_mask
);
279 mutex_unlock(&data
->update_lock
);
283 static ssize_t
set_fan_min2(struct device
*dev
, struct device_attribute
*attr
, const char *buf
, size_t count
)
285 struct i2c_client
*client
= to_i2c_client(dev
);
286 struct gl518_data
*data
= i2c_get_clientdata(client
);
288 unsigned long val
= simple_strtoul(buf
, NULL
, 10);
290 mutex_lock(&data
->update_lock
);
291 regvalue
= gl518_read_value(client
, GL518_REG_FAN_LIMIT
);
292 data
->fan_min
[1] = FAN_TO_REG(val
,
293 DIV_FROM_REG(data
->fan_div
[1]));
294 regvalue
= (regvalue
& 0xff00) | data
->fan_min
[1];
295 gl518_write_value(client
, GL518_REG_FAN_LIMIT
, regvalue
);
297 data
->beep_mask
= gl518_read_value(client
, GL518_REG_ALARM
);
298 if (data
->fan_min
[1] == 0)
299 data
->alarm_mask
&= ~0x40;
301 data
->alarm_mask
|= 0x40;
302 data
->beep_mask
&= data
->alarm_mask
;
303 gl518_write_value(client
, GL518_REG_ALARM
, data
->beep_mask
);
305 mutex_unlock(&data
->update_lock
);
309 static DEVICE_ATTR(temp1_input
, S_IRUGO
, show_temp_input1
, NULL
);
310 static DEVICE_ATTR(temp1_max
, S_IWUSR
|S_IRUGO
, show_temp_max1
, set_temp_max1
);
311 static DEVICE_ATTR(temp1_max_hyst
, S_IWUSR
|S_IRUGO
,
312 show_temp_hyst1
, set_temp_hyst1
);
313 static DEVICE_ATTR(fan1_auto
, S_IWUSR
|S_IRUGO
, show_fan_auto1
, set_fan_auto1
);
314 static DEVICE_ATTR(fan1_input
, S_IRUGO
, show_fan_input1
, NULL
);
315 static DEVICE_ATTR(fan2_input
, S_IRUGO
, show_fan_input2
, NULL
);
316 static DEVICE_ATTR(fan1_min
, S_IWUSR
|S_IRUGO
, show_fan_min1
, set_fan_min1
);
317 static DEVICE_ATTR(fan2_min
, S_IWUSR
|S_IRUGO
, show_fan_min2
, set_fan_min2
);
318 static DEVICE_ATTR(fan1_div
, S_IWUSR
|S_IRUGO
, show_fan_div1
, set_fan_div1
);
319 static DEVICE_ATTR(fan2_div
, S_IWUSR
|S_IRUGO
, show_fan_div2
, set_fan_div2
);
320 static DEVICE_ATTR(in0_input
, S_IRUGO
, show_in_input0
, NULL
);
321 static DEVICE_ATTR(in1_input
, S_IRUGO
, show_in_input1
, NULL
);
322 static DEVICE_ATTR(in2_input
, S_IRUGO
, show_in_input2
, NULL
);
323 static DEVICE_ATTR(in3_input
, S_IRUGO
, show_in_input3
, NULL
);
324 static DEVICE_ATTR(in0_min
, S_IWUSR
|S_IRUGO
, show_in_min0
, set_in_min0
);
325 static DEVICE_ATTR(in1_min
, S_IWUSR
|S_IRUGO
, show_in_min1
, set_in_min1
);
326 static DEVICE_ATTR(in2_min
, S_IWUSR
|S_IRUGO
, show_in_min2
, set_in_min2
);
327 static DEVICE_ATTR(in3_min
, S_IWUSR
|S_IRUGO
, show_in_min3
, set_in_min3
);
328 static DEVICE_ATTR(in0_max
, S_IWUSR
|S_IRUGO
, show_in_max0
, set_in_max0
);
329 static DEVICE_ATTR(in1_max
, S_IWUSR
|S_IRUGO
, show_in_max1
, set_in_max1
);
330 static DEVICE_ATTR(in2_max
, S_IWUSR
|S_IRUGO
, show_in_max2
, set_in_max2
);
331 static DEVICE_ATTR(in3_max
, S_IWUSR
|S_IRUGO
, show_in_max3
, set_in_max3
);
332 static DEVICE_ATTR(alarms
, S_IRUGO
, show_alarms
, NULL
);
333 static DEVICE_ATTR(beep_enable
, S_IWUSR
|S_IRUGO
,
334 show_beep_enable
, set_beep_enable
);
335 static DEVICE_ATTR(beep_mask
, S_IWUSR
|S_IRUGO
,
336 show_beep_mask
, set_beep_mask
);
338 static struct attribute
*gl518_attributes
[] = {
339 &dev_attr_in0_input
.attr
,
340 &dev_attr_in1_input
.attr
,
341 &dev_attr_in2_input
.attr
,
342 &dev_attr_in3_input
.attr
,
343 &dev_attr_in0_min
.attr
,
344 &dev_attr_in1_min
.attr
,
345 &dev_attr_in2_min
.attr
,
346 &dev_attr_in3_min
.attr
,
347 &dev_attr_in0_max
.attr
,
348 &dev_attr_in1_max
.attr
,
349 &dev_attr_in2_max
.attr
,
350 &dev_attr_in3_max
.attr
,
352 &dev_attr_fan1_auto
.attr
,
353 &dev_attr_fan1_input
.attr
,
354 &dev_attr_fan2_input
.attr
,
355 &dev_attr_fan1_min
.attr
,
356 &dev_attr_fan2_min
.attr
,
357 &dev_attr_fan1_div
.attr
,
358 &dev_attr_fan2_div
.attr
,
360 &dev_attr_temp1_input
.attr
,
361 &dev_attr_temp1_max
.attr
,
362 &dev_attr_temp1_max_hyst
.attr
,
364 &dev_attr_alarms
.attr
,
365 &dev_attr_beep_enable
.attr
,
366 &dev_attr_beep_mask
.attr
,
370 static const struct attribute_group gl518_group
= {
371 .attrs
= gl518_attributes
,
378 static int gl518_attach_adapter(struct i2c_adapter
*adapter
)
380 if (!(adapter
->class & I2C_CLASS_HWMON
))
382 return i2c_probe(adapter
, &addr_data
, gl518_detect
);
385 static int gl518_detect(struct i2c_adapter
*adapter
, int address
, int kind
)
388 struct i2c_client
*client
;
389 struct gl518_data
*data
;
392 if (!i2c_check_functionality(adapter
, I2C_FUNC_SMBUS_BYTE_DATA
|
393 I2C_FUNC_SMBUS_WORD_DATA
))
396 /* OK. For now, we presume we have a valid client. We now create the
397 client structure, even though we cannot fill it completely yet.
398 But it allows us to access gl518_{read,write}_value. */
400 if (!(data
= kzalloc(sizeof(struct gl518_data
), GFP_KERNEL
))) {
405 client
= &data
->client
;
406 i2c_set_clientdata(client
, data
);
408 client
->addr
= address
;
409 client
->adapter
= adapter
;
410 client
->driver
= &gl518_driver
;
412 /* Now, we do the remaining detection. */
415 if ((gl518_read_value(client
, GL518_REG_CHIP_ID
) != 0x80)
416 || (gl518_read_value(client
, GL518_REG_CONF
) & 0x80))
420 /* Determine the chip type. */
422 i
= gl518_read_value(client
, GL518_REG_REVISION
);
425 } else if (i
== 0x80) {
429 dev_info(&adapter
->dev
,
430 "Ignoring 'force' parameter for unknown "
431 "chip at adapter %d, address 0x%02x\n",
432 i2c_adapter_id(adapter
), address
);
437 /* Fill in the remaining client fields */
438 strlcpy(client
->name
, "gl518sm", I2C_NAME_SIZE
);
440 mutex_init(&data
->update_lock
);
442 /* Tell the I2C layer a new client has arrived */
443 if ((err
= i2c_attach_client(client
)))
446 /* Initialize the GL518SM chip */
447 data
->alarm_mask
= 0xff;
448 data
->voltage_in
[0]=data
->voltage_in
[1]=data
->voltage_in
[2]=0;
449 gl518_init_client(client
);
451 /* Register sysfs hooks */
452 if ((err
= sysfs_create_group(&client
->dev
.kobj
, &gl518_group
)))
455 data
->hwmon_dev
= hwmon_device_register(&client
->dev
);
456 if (IS_ERR(data
->hwmon_dev
)) {
457 err
= PTR_ERR(data
->hwmon_dev
);
458 goto exit_remove_files
;
464 sysfs_remove_group(&client
->dev
.kobj
, &gl518_group
);
466 i2c_detach_client(client
);
474 /* Called when we have found a new GL518SM.
475 Note that we preserve D4:NoFan2 and D2:beep_enable. */
476 static void gl518_init_client(struct i2c_client
*client
)
478 /* Make sure we leave D7:Reset untouched */
479 u8 regvalue
= gl518_read_value(client
, GL518_REG_CONF
) & 0x7f;
481 /* Comparator mode (D3=0), standby mode (D6=0) */
482 gl518_write_value(client
, GL518_REG_CONF
, (regvalue
&= 0x37));
484 /* Never interrupts */
485 gl518_write_value(client
, GL518_REG_MASK
, 0x00);
487 /* Clear status register (D5=1), start (D6=1) */
488 gl518_write_value(client
, GL518_REG_CONF
, 0x20 | regvalue
);
489 gl518_write_value(client
, GL518_REG_CONF
, 0x40 | regvalue
);
492 static int gl518_detach_client(struct i2c_client
*client
)
494 struct gl518_data
*data
= i2c_get_clientdata(client
);
497 hwmon_device_unregister(data
->hwmon_dev
);
498 sysfs_remove_group(&client
->dev
.kobj
, &gl518_group
);
500 if ((err
= i2c_detach_client(client
)))
507 /* Registers 0x07 to 0x0c are word-sized, others are byte-sized
508 GL518 uses a high-byte first convention, which is exactly opposite to
509 the SMBus standard. */
510 static int gl518_read_value(struct i2c_client
*client
, u8 reg
)
512 if ((reg
>= 0x07) && (reg
<= 0x0c))
513 return swab16(i2c_smbus_read_word_data(client
, reg
));
515 return i2c_smbus_read_byte_data(client
, reg
);
518 static int gl518_write_value(struct i2c_client
*client
, u8 reg
, u16 value
)
520 if ((reg
>= 0x07) && (reg
<= 0x0c))
521 return i2c_smbus_write_word_data(client
, reg
, swab16(value
));
523 return i2c_smbus_write_byte_data(client
, reg
, value
);
526 static struct gl518_data
*gl518_update_device(struct device
*dev
)
528 struct i2c_client
*client
= to_i2c_client(dev
);
529 struct gl518_data
*data
= i2c_get_clientdata(client
);
532 mutex_lock(&data
->update_lock
);
534 if (time_after(jiffies
, data
->last_updated
+ HZ
+ HZ
/ 2)
536 dev_dbg(&client
->dev
, "Starting gl518 update\n");
538 data
->alarms
= gl518_read_value(client
, GL518_REG_INT
);
539 data
->beep_mask
= gl518_read_value(client
, GL518_REG_ALARM
);
541 val
= gl518_read_value(client
, GL518_REG_VDD_LIMIT
);
542 data
->voltage_min
[0] = val
& 0xff;
543 data
->voltage_max
[0] = (val
>> 8) & 0xff;
544 val
= gl518_read_value(client
, GL518_REG_VIN1_LIMIT
);
545 data
->voltage_min
[1] = val
& 0xff;
546 data
->voltage_max
[1] = (val
>> 8) & 0xff;
547 val
= gl518_read_value(client
, GL518_REG_VIN2_LIMIT
);
548 data
->voltage_min
[2] = val
& 0xff;
549 data
->voltage_max
[2] = (val
>> 8) & 0xff;
550 val
= gl518_read_value(client
, GL518_REG_VIN3_LIMIT
);
551 data
->voltage_min
[3] = val
& 0xff;
552 data
->voltage_max
[3] = (val
>> 8) & 0xff;
554 val
= gl518_read_value(client
, GL518_REG_FAN_COUNT
);
555 data
->fan_in
[0] = (val
>> 8) & 0xff;
556 data
->fan_in
[1] = val
& 0xff;
558 val
= gl518_read_value(client
, GL518_REG_FAN_LIMIT
);
559 data
->fan_min
[0] = (val
>> 8) & 0xff;
560 data
->fan_min
[1] = val
& 0xff;
562 data
->temp_in
= gl518_read_value(client
, GL518_REG_TEMP_IN
);
564 gl518_read_value(client
, GL518_REG_TEMP_MAX
);
566 gl518_read_value(client
, GL518_REG_TEMP_HYST
);
568 val
= gl518_read_value(client
, GL518_REG_MISC
);
569 data
->fan_div
[0] = (val
>> 6) & 0x03;
570 data
->fan_div
[1] = (val
>> 4) & 0x03;
571 data
->fan_auto1
= (val
>> 3) & 0x01;
573 data
->alarms
&= data
->alarm_mask
;
575 val
= gl518_read_value(client
, GL518_REG_CONF
);
576 data
->beep_enable
= (val
>> 2) & 1;
578 if (data
->type
!= gl518sm_r00
) {
579 data
->voltage_in
[0] =
580 gl518_read_value(client
, GL518_REG_VDD
);
581 data
->voltage_in
[1] =
582 gl518_read_value(client
, GL518_REG_VIN1
);
583 data
->voltage_in
[2] =
584 gl518_read_value(client
, GL518_REG_VIN2
);
586 data
->voltage_in
[3] =
587 gl518_read_value(client
, GL518_REG_VIN3
);
589 data
->last_updated
= jiffies
;
593 mutex_unlock(&data
->update_lock
);
598 static int __init
sensors_gl518sm_init(void)
600 return i2c_add_driver(&gl518_driver
);
603 static void __exit
sensors_gl518sm_exit(void)
605 i2c_del_driver(&gl518_driver
);
608 MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
609 "Kyosti Malkki <kmalkki@cc.hut.fi> and "
610 "Hong-Gunn Chew <hglinux@gunnet.org>");
611 MODULE_DESCRIPTION("GL518SM driver");
612 MODULE_LICENSE("GPL");
614 module_init(sensors_gl518sm_init
);
615 module_exit(sensors_gl518sm_exit
);