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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/hwmon-sysfs.h>
42#include <linux/err.h>
43#include <linux/mutex.h>
44#include <linux/sysfs.h>
45
46
47static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
48
49
50I2C_CLIENT_INSMOD_2(gl518sm_r00, gl518sm_r80);
51
52
53
54
55#define GL518_REG_CHIP_ID 0x00
56#define GL518_REG_REVISION 0x01
57#define GL518_REG_VENDOR_ID 0x02
58#define GL518_REG_CONF 0x03
59#define GL518_REG_TEMP_IN 0x04
60#define GL518_REG_TEMP_MAX 0x05
61#define GL518_REG_TEMP_HYST 0x06
62#define GL518_REG_FAN_COUNT 0x07
63#define GL518_REG_FAN_LIMIT 0x08
64#define GL518_REG_VIN1_LIMIT 0x09
65#define GL518_REG_VIN2_LIMIT 0x0a
66#define GL518_REG_VIN3_LIMIT 0x0b
67#define GL518_REG_VDD_LIMIT 0x0c
68#define GL518_REG_VIN3 0x0d
69#define GL518_REG_MISC 0x0f
70#define GL518_REG_ALARM 0x10
71#define GL518_REG_MASK 0x11
72#define GL518_REG_INT 0x12
73#define GL518_REG_VIN2 0x13
74#define GL518_REG_VIN1 0x14
75#define GL518_REG_VDD 0x15
76
77
78
79
80
81
82
83
84
85#define RAW_FROM_REG(val) val
86
87#define BOOL_FROM_REG(val) ((val)?0:1)
88#define BOOL_TO_REG(val) ((val)?0:1)
89
90#define TEMP_TO_REG(val) (SENSORS_LIMIT(((((val)<0? \
91 (val)-500:(val)+500)/1000)+119),0,255))
92#define TEMP_FROM_REG(val) (((val) - 119) * 1000)
93
94static inline u8 FAN_TO_REG(long rpm, int div)
95{
96 long rpmdiv;
97 if (rpm == 0)
98 return 0;
99 rpmdiv = SENSORS_LIMIT(rpm, 1, 960000) * div;
100 return SENSORS_LIMIT((480000 + rpmdiv / 2) / rpmdiv, 1, 255);
101}
102#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val)*(div))))
103
104#define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255))
105#define IN_FROM_REG(val) ((val)*19)
106
107#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255))
108#define VDD_FROM_REG(val) (((val)*95+2)/4)
109
110#define DIV_FROM_REG(val) (1 << (val))
111
112#define BEEP_MASK_TO_REG(val) ((val) & 0x7f & data->alarm_mask)
113#define BEEP_MASK_FROM_REG(val) ((val) & 0x7f)
114
115
116struct gl518_data {
117 struct device *hwmon_dev;
118 enum chips type;
119
120 struct mutex update_lock;
121 char valid;
122 unsigned long last_updated;
123
124 u8 voltage_in[4];
125 u8 voltage_min[4];
126 u8 voltage_max[4];
127 u8 fan_in[2];
128 u8 fan_min[2];
129 u8 fan_div[2];
130 u8 fan_auto1;
131 u8 temp_in;
132 u8 temp_max;
133 u8 temp_hyst;
134 u8 alarms;
135 u8 alarm_mask;
136 u8 beep_mask;
137 u8 beep_enable;
138};
139
140static int gl518_probe(struct i2c_client *client,
141 const struct i2c_device_id *id);
142static int gl518_detect(struct i2c_client *client, int kind,
143 struct i2c_board_info *info);
144static void gl518_init_client(struct i2c_client *client);
145static int gl518_remove(struct i2c_client *client);
146static int gl518_read_value(struct i2c_client *client, u8 reg);
147static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
148static struct gl518_data *gl518_update_device(struct device *dev);
149
150static const struct i2c_device_id gl518_id[] = {
151 { "gl518sm", 0 },
152 { }
153};
154MODULE_DEVICE_TABLE(i2c, gl518_id);
155
156
157static struct i2c_driver gl518_driver = {
158 .class = I2C_CLASS_HWMON,
159 .driver = {
160 .name = "gl518sm",
161 },
162 .probe = gl518_probe,
163 .remove = gl518_remove,
164 .id_table = gl518_id,
165 .detect = gl518_detect,
166 .address_data = &addr_data,
167};
168
169
170
171
172
173#define show(type, suffix, value) \
174static ssize_t show_##suffix(struct device *dev, struct device_attribute *attr, char *buf) \
175{ \
176 struct gl518_data *data = gl518_update_device(dev); \
177 return sprintf(buf, "%d\n", type##_FROM_REG(data->value)); \
178}
179
180show(TEMP, temp_input1, temp_in);
181show(TEMP, temp_max1, temp_max);
182show(TEMP, temp_hyst1, temp_hyst);
183show(BOOL, fan_auto1, fan_auto1);
184show(VDD, in_input0, voltage_in[0]);
185show(IN, in_input1, voltage_in[1]);
186show(IN, in_input2, voltage_in[2]);
187show(IN, in_input3, voltage_in[3]);
188show(VDD, in_min0, voltage_min[0]);
189show(IN, in_min1, voltage_min[1]);
190show(IN, in_min2, voltage_min[2]);
191show(IN, in_min3, voltage_min[3]);
192show(VDD, in_max0, voltage_max[0]);
193show(IN, in_max1, voltage_max[1]);
194show(IN, in_max2, voltage_max[2]);
195show(IN, in_max3, voltage_max[3]);
196show(RAW, alarms, alarms);
197show(BOOL, beep_enable, beep_enable);
198show(BEEP_MASK, beep_mask, beep_mask);
199
200static ssize_t show_fan_input(struct device *dev,
201 struct device_attribute *attr, char *buf)
202{
203 int nr = to_sensor_dev_attr(attr)->index;
204 struct gl518_data *data = gl518_update_device(dev);
205 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_in[nr],
206 DIV_FROM_REG(data->fan_div[nr])));
207}
208
209static ssize_t show_fan_min(struct device *dev,
210 struct device_attribute *attr, char *buf)
211{
212 int nr = to_sensor_dev_attr(attr)->index;
213 struct gl518_data *data = gl518_update_device(dev);
214 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
215 DIV_FROM_REG(data->fan_div[nr])));
216}
217
218static ssize_t show_fan_div(struct device *dev,
219 struct device_attribute *attr, char *buf)
220{
221 int nr = to_sensor_dev_attr(attr)->index;
222 struct gl518_data *data = gl518_update_device(dev);
223 return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
224}
225
226#define set(type, suffix, value, reg) \
227static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
228 size_t count) \
229{ \
230 struct i2c_client *client = to_i2c_client(dev); \
231 struct gl518_data *data = i2c_get_clientdata(client); \
232 long val = simple_strtol(buf, NULL, 10); \
233 \
234 mutex_lock(&data->update_lock); \
235 data->value = type##_TO_REG(val); \
236 gl518_write_value(client, reg, data->value); \
237 mutex_unlock(&data->update_lock); \
238 return count; \
239}
240
241#define set_bits(type, suffix, value, reg, mask, shift) \
242static ssize_t set_##suffix(struct device *dev, struct device_attribute *attr, const char *buf, \
243 size_t count) \
244{ \
245 struct i2c_client *client = to_i2c_client(dev); \
246 struct gl518_data *data = i2c_get_clientdata(client); \
247 int regvalue; \
248 unsigned long val = simple_strtoul(buf, NULL, 10); \
249 \
250 mutex_lock(&data->update_lock); \
251 regvalue = gl518_read_value(client, reg); \
252 data->value = type##_TO_REG(val); \
253 regvalue = (regvalue & ~mask) | (data->value << shift); \
254 gl518_write_value(client, reg, regvalue); \
255 mutex_unlock(&data->update_lock); \
256 return count; \
257}
258
259#define set_low(type, suffix, value, reg) \
260 set_bits(type, suffix, value, reg, 0x00ff, 0)
261#define set_high(type, suffix, value, reg) \
262 set_bits(type, suffix, value, reg, 0xff00, 8)
263
264set(TEMP, temp_max1, temp_max, GL518_REG_TEMP_MAX);
265set(TEMP, temp_hyst1, temp_hyst, GL518_REG_TEMP_HYST);
266set_bits(BOOL, fan_auto1, fan_auto1, GL518_REG_MISC, 0x08, 3);
267set_low(VDD, in_min0, voltage_min[0], GL518_REG_VDD_LIMIT);
268set_low(IN, in_min1, voltage_min[1], GL518_REG_VIN1_LIMIT);
269set_low(IN, in_min2, voltage_min[2], GL518_REG_VIN2_LIMIT);
270set_low(IN, in_min3, voltage_min[3], GL518_REG_VIN3_LIMIT);
271set_high(VDD, in_max0, voltage_max[0], GL518_REG_VDD_LIMIT);
272set_high(IN, in_max1, voltage_max[1], GL518_REG_VIN1_LIMIT);
273set_high(IN, in_max2, voltage_max[2], GL518_REG_VIN2_LIMIT);
274set_high(IN, in_max3, voltage_max[3], GL518_REG_VIN3_LIMIT);
275set_bits(BOOL, beep_enable, beep_enable, GL518_REG_CONF, 0x04, 2);
276set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
277
278static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
279 const char *buf, size_t count)
280{
281 struct i2c_client *client = to_i2c_client(dev);
282 struct gl518_data *data = i2c_get_clientdata(client);
283 int nr = to_sensor_dev_attr(attr)->index;
284 int regvalue;
285 unsigned long val = simple_strtoul(buf, NULL, 10);
286
287 mutex_lock(&data->update_lock);
288 regvalue = gl518_read_value(client, GL518_REG_FAN_LIMIT);
289 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
290 regvalue = (regvalue & (0xff << (8 * nr)))
291 | (data->fan_min[nr] << (8 * (1 - nr)));
292 gl518_write_value(client, GL518_REG_FAN_LIMIT, regvalue);
293
294 data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
295 if (data->fan_min[nr] == 0)
296 data->alarm_mask &= ~(0x20 << nr);
297 else
298 data->alarm_mask |= (0x20 << nr);
299 data->beep_mask &= data->alarm_mask;
300 gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
301
302 mutex_unlock(&data->update_lock);
303 return count;
304}
305
306static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
307 const char *buf, size_t count)
308{
309 struct i2c_client *client = to_i2c_client(dev);
310 struct gl518_data *data = i2c_get_clientdata(client);
311 int nr = to_sensor_dev_attr(attr)->index;
312 int regvalue;
313 unsigned long val = simple_strtoul(buf, NULL, 10);
314
315 switch (val) {
316 case 1: val = 0; break;
317 case 2: val = 1; break;
318 case 4: val = 2; break;
319 case 8: val = 3; break;
320 default:
321 dev_err(dev, "Invalid fan clock divider %lu, choose one "
322 "of 1, 2, 4 or 8\n", val);
323 return -EINVAL;
324 }
325
326 mutex_lock(&data->update_lock);
327 regvalue = gl518_read_value(client, GL518_REG_MISC);
328 data->fan_div[nr] = val;
329 regvalue = (regvalue & ~(0xc0 >> (2 * nr)))
330 | (data->fan_div[nr] << (6 - 2 * nr));
331 gl518_write_value(client, GL518_REG_MISC, regvalue);
332 mutex_unlock(&data->update_lock);
333 return count;
334}
335
336static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
337static DEVICE_ATTR(temp1_max, S_IWUSR|S_IRUGO, show_temp_max1, set_temp_max1);
338static DEVICE_ATTR(temp1_max_hyst, S_IWUSR|S_IRUGO,
339 show_temp_hyst1, set_temp_hyst1);
340static DEVICE_ATTR(fan1_auto, S_IWUSR|S_IRUGO, show_fan_auto1, set_fan_auto1);
341static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
342static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
343static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR|S_IRUGO,
344 show_fan_min, set_fan_min, 0);
345static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR|S_IRUGO,
346 show_fan_min, set_fan_min, 1);
347static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR|S_IRUGO,
348 show_fan_div, set_fan_div, 0);
349static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR|S_IRUGO,
350 show_fan_div, set_fan_div, 1);
351static DEVICE_ATTR(in0_input, S_IRUGO, show_in_input0, NULL);
352static DEVICE_ATTR(in1_input, S_IRUGO, show_in_input1, NULL);
353static DEVICE_ATTR(in2_input, S_IRUGO, show_in_input2, NULL);
354static DEVICE_ATTR(in3_input, S_IRUGO, show_in_input3, NULL);
355static DEVICE_ATTR(in0_min, S_IWUSR|S_IRUGO, show_in_min0, set_in_min0);
356static DEVICE_ATTR(in1_min, S_IWUSR|S_IRUGO, show_in_min1, set_in_min1);
357static DEVICE_ATTR(in2_min, S_IWUSR|S_IRUGO, show_in_min2, set_in_min2);
358static DEVICE_ATTR(in3_min, S_IWUSR|S_IRUGO, show_in_min3, set_in_min3);
359static DEVICE_ATTR(in0_max, S_IWUSR|S_IRUGO, show_in_max0, set_in_max0);
360static DEVICE_ATTR(in1_max, S_IWUSR|S_IRUGO, show_in_max1, set_in_max1);
361static DEVICE_ATTR(in2_max, S_IWUSR|S_IRUGO, show_in_max2, set_in_max2);
362static DEVICE_ATTR(in3_max, S_IWUSR|S_IRUGO, show_in_max3, set_in_max3);
363static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
364static DEVICE_ATTR(beep_enable, S_IWUSR|S_IRUGO,
365 show_beep_enable, set_beep_enable);
366static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO,
367 show_beep_mask, set_beep_mask);
368
369static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
370 char *buf)
371{
372 int bitnr = to_sensor_dev_attr(attr)->index;
373 struct gl518_data *data = gl518_update_device(dev);
374 return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
375}
376
377static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
378static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
379static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
380static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
381static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
382static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
383static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
384
385static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
386 char *buf)
387{
388 int bitnr = to_sensor_dev_attr(attr)->index;
389 struct gl518_data *data = gl518_update_device(dev);
390 return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
391}
392
393static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
394 const char *buf, size_t count)
395{
396 struct i2c_client *client = to_i2c_client(dev);
397 struct gl518_data *data = i2c_get_clientdata(client);
398 int bitnr = to_sensor_dev_attr(attr)->index;
399 unsigned long bit;
400
401 bit = simple_strtoul(buf, NULL, 10);
402 if (bit & ~1)
403 return -EINVAL;
404
405 mutex_lock(&data->update_lock);
406 data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
407 if (bit)
408 data->beep_mask |= (1 << bitnr);
409 else
410 data->beep_mask &= ~(1 << bitnr);
411 gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
412 mutex_unlock(&data->update_lock);
413 return count;
414}
415
416static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 0);
417static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 1);
418static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 2);
419static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 3);
420static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 4);
421static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 5);
422static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 6);
423
424static struct attribute *gl518_attributes[] = {
425 &dev_attr_in3_input.attr,
426 &dev_attr_in0_min.attr,
427 &dev_attr_in1_min.attr,
428 &dev_attr_in2_min.attr,
429 &dev_attr_in3_min.attr,
430 &dev_attr_in0_max.attr,
431 &dev_attr_in1_max.attr,
432 &dev_attr_in2_max.attr,
433 &dev_attr_in3_max.attr,
434 &sensor_dev_attr_in0_alarm.dev_attr.attr,
435 &sensor_dev_attr_in1_alarm.dev_attr.attr,
436 &sensor_dev_attr_in2_alarm.dev_attr.attr,
437 &sensor_dev_attr_in3_alarm.dev_attr.attr,
438 &sensor_dev_attr_in0_beep.dev_attr.attr,
439 &sensor_dev_attr_in1_beep.dev_attr.attr,
440 &sensor_dev_attr_in2_beep.dev_attr.attr,
441 &sensor_dev_attr_in3_beep.dev_attr.attr,
442
443 &dev_attr_fan1_auto.attr,
444 &sensor_dev_attr_fan1_input.dev_attr.attr,
445 &sensor_dev_attr_fan2_input.dev_attr.attr,
446 &sensor_dev_attr_fan1_min.dev_attr.attr,
447 &sensor_dev_attr_fan2_min.dev_attr.attr,
448 &sensor_dev_attr_fan1_div.dev_attr.attr,
449 &sensor_dev_attr_fan2_div.dev_attr.attr,
450 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
451 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
452 &sensor_dev_attr_fan1_beep.dev_attr.attr,
453 &sensor_dev_attr_fan2_beep.dev_attr.attr,
454
455 &dev_attr_temp1_input.attr,
456 &dev_attr_temp1_max.attr,
457 &dev_attr_temp1_max_hyst.attr,
458 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
459 &sensor_dev_attr_temp1_beep.dev_attr.attr,
460
461 &dev_attr_alarms.attr,
462 &dev_attr_beep_enable.attr,
463 &dev_attr_beep_mask.attr,
464 NULL
465};
466
467static const struct attribute_group gl518_group = {
468 .attrs = gl518_attributes,
469};
470
471static struct attribute *gl518_attributes_r80[] = {
472 &dev_attr_in0_input.attr,
473 &dev_attr_in1_input.attr,
474 &dev_attr_in2_input.attr,
475 NULL
476};
477
478static const struct attribute_group gl518_group_r80 = {
479 .attrs = gl518_attributes_r80,
480};
481
482
483
484
485
486
487static int gl518_detect(struct i2c_client *client, int kind,
488 struct i2c_board_info *info)
489{
490 struct i2c_adapter *adapter = client->adapter;
491 int i;
492
493 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
494 I2C_FUNC_SMBUS_WORD_DATA))
495 return -ENODEV;
496
497
498
499 if (kind < 0) {
500 if ((gl518_read_value(client, GL518_REG_CHIP_ID) != 0x80)
501 || (gl518_read_value(client, GL518_REG_CONF) & 0x80))
502 return -ENODEV;
503 }
504
505
506 if (kind <= 0) {
507 i = gl518_read_value(client, GL518_REG_REVISION);
508 if (i == 0x00) {
509 kind = gl518sm_r00;
510 } else if (i == 0x80) {
511 kind = gl518sm_r80;
512 } else {
513 if (kind <= 0)
514 dev_info(&adapter->dev,
515 "Ignoring 'force' parameter for unknown "
516 "chip at adapter %d, address 0x%02x\n",
517 i2c_adapter_id(adapter), client->addr);
518 return -ENODEV;
519 }
520 }
521
522 strlcpy(info->type, "gl518sm", I2C_NAME_SIZE);
523
524 return 0;
525}
526
527static int gl518_probe(struct i2c_client *client,
528 const struct i2c_device_id *id)
529{
530 struct gl518_data *data;
531 int err, revision;
532
533 data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL);
534 if (!data) {
535 err = -ENOMEM;
536 goto exit;
537 }
538
539 i2c_set_clientdata(client, data);
540 revision = gl518_read_value(client, GL518_REG_REVISION);
541 data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
542 mutex_init(&data->update_lock);
543
544
545 data->alarm_mask = 0xff;
546 gl518_init_client(client);
547
548
549 if ((err = sysfs_create_group(&client->dev.kobj, &gl518_group)))
550 goto exit_free;
551 if (data->type == gl518sm_r80)
552 if ((err = sysfs_create_group(&client->dev.kobj,
553 &gl518_group_r80)))
554 goto exit_remove_files;
555
556 data->hwmon_dev = hwmon_device_register(&client->dev);
557 if (IS_ERR(data->hwmon_dev)) {
558 err = PTR_ERR(data->hwmon_dev);
559 goto exit_remove_files;
560 }
561
562 return 0;
563
564exit_remove_files:
565 sysfs_remove_group(&client->dev.kobj, &gl518_group);
566 if (data->type == gl518sm_r80)
567 sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
568exit_free:
569 kfree(data);
570exit:
571 return err;
572}
573
574
575
576
577static void gl518_init_client(struct i2c_client *client)
578{
579
580 u8 regvalue = gl518_read_value(client, GL518_REG_CONF) & 0x7f;
581
582
583 gl518_write_value(client, GL518_REG_CONF, (regvalue &= 0x37));
584
585
586 gl518_write_value(client, GL518_REG_MASK, 0x00);
587
588
589 gl518_write_value(client, GL518_REG_CONF, 0x20 | regvalue);
590 gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
591}
592
593static int gl518_remove(struct i2c_client *client)
594{
595 struct gl518_data *data = i2c_get_clientdata(client);
596
597 hwmon_device_unregister(data->hwmon_dev);
598 sysfs_remove_group(&client->dev.kobj, &gl518_group);
599 if (data->type == gl518sm_r80)
600 sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
601
602 kfree(data);
603 return 0;
604}
605
606
607
608
609static int gl518_read_value(struct i2c_client *client, u8 reg)
610{
611 if ((reg >= 0x07) && (reg <= 0x0c))
612 return swab16(i2c_smbus_read_word_data(client, reg));
613 else
614 return i2c_smbus_read_byte_data(client, reg);
615}
616
617static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
618{
619 if ((reg >= 0x07) && (reg <= 0x0c))
620 return i2c_smbus_write_word_data(client, reg, swab16(value));
621 else
622 return i2c_smbus_write_byte_data(client, reg, value);
623}
624
625static struct gl518_data *gl518_update_device(struct device *dev)
626{
627 struct i2c_client *client = to_i2c_client(dev);
628 struct gl518_data *data = i2c_get_clientdata(client);
629 int val;
630
631 mutex_lock(&data->update_lock);
632
633 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
634 || !data->valid) {
635 dev_dbg(&client->dev, "Starting gl518 update\n");
636
637 data->alarms = gl518_read_value(client, GL518_REG_INT);
638 data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
639
640 val = gl518_read_value(client, GL518_REG_VDD_LIMIT);
641 data->voltage_min[0] = val & 0xff;
642 data->voltage_max[0] = (val >> 8) & 0xff;
643 val = gl518_read_value(client, GL518_REG_VIN1_LIMIT);
644 data->voltage_min[1] = val & 0xff;
645 data->voltage_max[1] = (val >> 8) & 0xff;
646 val = gl518_read_value(client, GL518_REG_VIN2_LIMIT);
647 data->voltage_min[2] = val & 0xff;
648 data->voltage_max[2] = (val >> 8) & 0xff;
649 val = gl518_read_value(client, GL518_REG_VIN3_LIMIT);
650 data->voltage_min[3] = val & 0xff;
651 data->voltage_max[3] = (val >> 8) & 0xff;
652
653 val = gl518_read_value(client, GL518_REG_FAN_COUNT);
654 data->fan_in[0] = (val >> 8) & 0xff;
655 data->fan_in[1] = val & 0xff;
656
657 val = gl518_read_value(client, GL518_REG_FAN_LIMIT);
658 data->fan_min[0] = (val >> 8) & 0xff;
659 data->fan_min[1] = val & 0xff;
660
661 data->temp_in = gl518_read_value(client, GL518_REG_TEMP_IN);
662 data->temp_max =
663 gl518_read_value(client, GL518_REG_TEMP_MAX);
664 data->temp_hyst =
665 gl518_read_value(client, GL518_REG_TEMP_HYST);
666
667 val = gl518_read_value(client, GL518_REG_MISC);
668 data->fan_div[0] = (val >> 6) & 0x03;
669 data->fan_div[1] = (val >> 4) & 0x03;
670 data->fan_auto1 = (val >> 3) & 0x01;
671
672 data->alarms &= data->alarm_mask;
673
674 val = gl518_read_value(client, GL518_REG_CONF);
675 data->beep_enable = (val >> 2) & 1;
676
677 if (data->type != gl518sm_r00) {
678 data->voltage_in[0] =
679 gl518_read_value(client, GL518_REG_VDD);
680 data->voltage_in[1] =
681 gl518_read_value(client, GL518_REG_VIN1);
682 data->voltage_in[2] =
683 gl518_read_value(client, GL518_REG_VIN2);
684 }
685 data->voltage_in[3] =
686 gl518_read_value(client, GL518_REG_VIN3);
687
688 data->last_updated = jiffies;
689 data->valid = 1;
690 }
691
692 mutex_unlock(&data->update_lock);
693
694 return data;
695}
696
697static int __init sensors_gl518sm_init(void)
698{
699 return i2c_add_driver(&gl518_driver);
700}
701
702static void __exit sensors_gl518sm_exit(void)
703{
704 i2c_del_driver(&gl518_driver);
705}
706
707MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
708 "Kyosti Malkki <kmalkki@cc.hut.fi> and "
709 "Hong-Gunn Chew <hglinux@gunnet.org>");
710MODULE_DESCRIPTION("GL518SM driver");
711MODULE_LICENSE("GPL");
712
713module_init(sensors_gl518sm_init);
714module_exit(sensors_gl518sm_exit);
715
