2 sis5595.c - Part of lm_sensors, Linux kernel modules
3 for hardware monitoring
5 Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
6 Kyösti Mälkki <kmalkki@cc.hut.fi>, and
7 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
9 the help of Jean Delvare <khali@linux-fr.org>
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 SiS southbridge has a LM78-like chip integrated on the same IC.
28 This driver is a customized copy of lm78.c
30 Supports following revisions:
31 Version PCI ID PCI Revision
32 1 1039/0008 AF or less
33 2 1039/0008 B0 or greater
35 Note: these chips contain a 0008 device which is incompatible with the
36 5595. We recognize these by the presence of the listed
37 "blacklist" PCI ID and refuse to load.
39 NOT SUPPORTED PCI ID BLACKLIST PCI ID
53 #include <linux/module.h>
54 #include <linux/slab.h>
55 #include <linux/ioport.h>
56 #include <linux/pci.h>
57 #include <linux/i2c.h>
58 #include <linux/i2c-isa.h>
59 #include <linux/hwmon.h>
60 #include <linux/err.h>
61 #include <linux/init.h>
62 #include <linux/jiffies.h>
63 #include <linux/mutex.h>
64 #include <linux/sysfs.h>
68 /* If force_addr is set to anything different from 0, we forcibly enable
69 the device at the given address. */
70 static u16 force_addr;
71 module_param(force_addr, ushort, 0);
72 MODULE_PARM_DESC(force_addr,
73 "Initialize the base address of the sensors");
76 Note that we can't determine the ISA address until we have initialized
78 static unsigned short address;
80 /* Many SIS5595 constants specified below */
82 /* Length of ISA address segment */
83 #define SIS5595_EXTENT 8
84 /* PCI Config Registers */
85 #define SIS5595_REVISION_REG 0x08
86 #define SIS5595_BASE_REG 0x68
87 #define SIS5595_PIN_REG 0x7A
88 #define SIS5595_ENABLE_REG 0x7B
90 /* Where are the ISA address/data registers relative to the base address */
91 #define SIS5595_ADDR_REG_OFFSET 5
92 #define SIS5595_DATA_REG_OFFSET 6
94 /* The SIS5595 registers */
95 #define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2)
96 #define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2)
97 #define SIS5595_REG_IN(nr) (0x20 + (nr))
99 #define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr))
100 #define SIS5595_REG_FAN(nr) (0x28 + (nr))
102 /* On the first version of the chip, the temp registers are separate.
103 On the second version,
104 TEMP pin is shared with IN4, configured in PCI register 0x7A.
105 The registers are the same as well.
106 OVER and HYST are really MAX and MIN. */
109 #define SIS5595_REG_TEMP (( data->revision) >= REV2MIN) ? \
110 SIS5595_REG_IN(4) : 0x27
111 #define SIS5595_REG_TEMP_OVER (( data->revision) >= REV2MIN) ? \
112 SIS5595_REG_IN_MAX(4) : 0x39
113 #define SIS5595_REG_TEMP_HYST (( data->revision) >= REV2MIN) ? \
114 SIS5595_REG_IN_MIN(4) : 0x3a
116 #define SIS5595_REG_CONFIG 0x40
117 #define SIS5595_REG_ALARM1 0x41
118 #define SIS5595_REG_ALARM2 0x42
119 #define SIS5595_REG_FANDIV 0x47
121 /* Conversions. Limit checking is only done on the TO_REG
124 /* IN: mV, (0V to 4.08V)
126 static inline u8 IN_TO_REG(unsigned long val)
128 unsigned long nval = SENSORS_LIMIT(val, 0, 4080);
129 return (nval + 8) / 16;
131 #define IN_FROM_REG(val) ((val) * 16)
133 static inline u8 FAN_TO_REG(long rpm, int div)
137 return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
140 static inline int FAN_FROM_REG(u8 val, int div)
142 return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div);
145 /* TEMP: mC (-54.12C to +157.53C)
146 REG: 0.83C/bit + 52.12, two's complement */
147 static inline int TEMP_FROM_REG(s8 val)
149 return val * 830 + 52120;
151 static inline s8 TEMP_TO_REG(int val)
153 int nval = SENSORS_LIMIT(val, -54120, 157530) ;
154 return nval<0 ? (nval-5212-415)/830 : (nval-5212+415)/830;
157 /* FAN DIV: 1, 2, 4, or 8 (defaults to 2)
158 REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */
159 static inline u8 DIV_TO_REG(int val)
161 return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1;
163 #define DIV_FROM_REG(val) (1 << (val))
165 /* For each registered chip, we need to keep some data in memory.
166 The structure is dynamically allocated. */
167 struct sis5595_data {
168 struct i2c_client client;
169 struct class_device *class_dev;
172 struct mutex update_lock;
173 char valid; /* !=0 if following fields are valid */
174 unsigned long last_updated; /* In jiffies */
175 char maxins; /* == 3 if temp enabled, otherwise == 4 */
176 u8 revision; /* Reg. value */
178 u8 in[5]; /* Register value */
179 u8 in_max[5]; /* Register value */
180 u8 in_min[5]; /* Register value */
181 u8 fan[2]; /* Register value */
182 u8 fan_min[2]; /* Register value */
183 s8 temp; /* Register value */
184 s8 temp_over; /* Register value */
185 s8 temp_hyst; /* Register value */
186 u8 fan_div[2]; /* Register encoding, shifted right */
187 u16 alarms; /* Register encoding, combined */
190 static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */
192 static int sis5595_detect(struct i2c_adapter *adapter);
193 static int sis5595_detach_client(struct i2c_client *client);
195 static int sis5595_read_value(struct i2c_client *client, u8 reg);
196 static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value);
197 static struct sis5595_data *sis5595_update_device(struct device *dev);
198 static void sis5595_init_client(struct i2c_client *client);
200 static struct i2c_driver sis5595_driver = {
202 .owner = THIS_MODULE,
205 .attach_adapter = sis5595_detect,
206 .detach_client = sis5595_detach_client,
210 static ssize_t show_in(struct device *dev, char *buf, int nr)
212 struct sis5595_data *data = sis5595_update_device(dev);
213 return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
216 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
218 struct sis5595_data *data = sis5595_update_device(dev);
219 return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
222 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
224 struct sis5595_data *data = sis5595_update_device(dev);
225 return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
228 static ssize_t set_in_min(struct device *dev, const char *buf,
229 size_t count, int nr)
231 struct i2c_client *client = to_i2c_client(dev);
232 struct sis5595_data *data = i2c_get_clientdata(client);
233 unsigned long val = simple_strtoul(buf, NULL, 10);
235 mutex_lock(&data->update_lock);
236 data->in_min[nr] = IN_TO_REG(val);
237 sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
238 mutex_unlock(&data->update_lock);
242 static ssize_t set_in_max(struct device *dev, const char *buf,
243 size_t count, int nr)
245 struct i2c_client *client = to_i2c_client(dev);
246 struct sis5595_data *data = i2c_get_clientdata(client);
247 unsigned long val = simple_strtoul(buf, NULL, 10);
249 mutex_lock(&data->update_lock);
250 data->in_max[nr] = IN_TO_REG(val);
251 sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
252 mutex_unlock(&data->update_lock);
256 #define show_in_offset(offset) \
258 show_in##offset (struct device *dev, struct device_attribute *attr, char *buf) \
260 return show_in(dev, buf, offset); \
262 static DEVICE_ATTR(in##offset##_input, S_IRUGO, \
263 show_in##offset, NULL); \
265 show_in##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \
267 return show_in_min(dev, buf, offset); \
270 show_in##offset##_max (struct device *dev, struct device_attribute *attr, char *buf) \
272 return show_in_max(dev, buf, offset); \
274 static ssize_t set_in##offset##_min (struct device *dev, struct device_attribute *attr, \
275 const char *buf, size_t count) \
277 return set_in_min(dev, buf, count, offset); \
279 static ssize_t set_in##offset##_max (struct device *dev, struct device_attribute *attr, \
280 const char *buf, size_t count) \
282 return set_in_max(dev, buf, count, offset); \
284 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
285 show_in##offset##_min, set_in##offset##_min); \
286 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
287 show_in##offset##_max, set_in##offset##_max);
296 static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
298 struct sis5595_data *data = sis5595_update_device(dev);
299 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));
302 static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, char *buf)
304 struct sis5595_data *data = sis5595_update_device(dev);
305 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));
308 static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
310 struct i2c_client *client = to_i2c_client(dev);
311 struct sis5595_data *data = i2c_get_clientdata(client);
312 long val = simple_strtol(buf, NULL, 10);
314 mutex_lock(&data->update_lock);
315 data->temp_over = TEMP_TO_REG(val);
316 sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over);
317 mutex_unlock(&data->update_lock);
321 static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf)
323 struct sis5595_data *data = sis5595_update_device(dev);
324 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));
327 static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
329 struct i2c_client *client = to_i2c_client(dev);
330 struct sis5595_data *data = i2c_get_clientdata(client);
331 long val = simple_strtol(buf, NULL, 10);
333 mutex_lock(&data->update_lock);
334 data->temp_hyst = TEMP_TO_REG(val);
335 sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst);
336 mutex_unlock(&data->update_lock);
340 static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
341 static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
342 show_temp_over, set_temp_over);
343 static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
344 show_temp_hyst, set_temp_hyst);
347 static ssize_t show_fan(struct device *dev, char *buf, int nr)
349 struct sis5595_data *data = sis5595_update_device(dev);
350 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
351 DIV_FROM_REG(data->fan_div[nr])) );
354 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
356 struct sis5595_data *data = sis5595_update_device(dev);
357 return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr],
358 DIV_FROM_REG(data->fan_div[nr])) );
361 static ssize_t set_fan_min(struct device *dev, const char *buf,
362 size_t count, int nr)
364 struct i2c_client *client = to_i2c_client(dev);
365 struct sis5595_data *data = i2c_get_clientdata(client);
366 unsigned long val = simple_strtoul(buf, NULL, 10);
368 mutex_lock(&data->update_lock);
369 data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
370 sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
371 mutex_unlock(&data->update_lock);
375 static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
377 struct sis5595_data *data = sis5595_update_device(dev);
378 return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) );
381 /* Note: we save and restore the fan minimum here, because its value is
382 determined in part by the fan divisor. This follows the principle of
383 least surprise; the user doesn't expect the fan minimum to change just
384 because the divisor changed. */
385 static ssize_t set_fan_div(struct device *dev, const char *buf,
386 size_t count, int nr)
388 struct i2c_client *client = to_i2c_client(dev);
389 struct sis5595_data *data = i2c_get_clientdata(client);
391 unsigned long val = simple_strtoul(buf, NULL, 10);
394 mutex_lock(&data->update_lock);
395 min = FAN_FROM_REG(data->fan_min[nr],
396 DIV_FROM_REG(data->fan_div[nr]));
397 reg = sis5595_read_value(client, SIS5595_REG_FANDIV);
400 case 1: data->fan_div[nr] = 0; break;
401 case 2: data->fan_div[nr] = 1; break;
402 case 4: data->fan_div[nr] = 2; break;
403 case 8: data->fan_div[nr] = 3; break;
405 dev_err(&client->dev, "fan_div value %ld not "
406 "supported. Choose one of 1, 2, 4 or 8!\n", val);
407 mutex_unlock(&data->update_lock);
413 reg = (reg & 0xcf) | (data->fan_div[nr] << 4);
416 reg = (reg & 0x3f) | (data->fan_div[nr] << 6);
419 sis5595_write_value(client, SIS5595_REG_FANDIV, reg);
421 FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
422 sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
423 mutex_unlock(&data->update_lock);
427 #define show_fan_offset(offset) \
428 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
430 return show_fan(dev, buf, offset - 1); \
432 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf) \
434 return show_fan_min(dev, buf, offset - 1); \
436 static ssize_t show_fan_##offset##_div (struct device *dev, struct device_attribute *attr, char *buf) \
438 return show_fan_div(dev, buf, offset - 1); \
440 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr, \
441 const char *buf, size_t count) \
443 return set_fan_min(dev, buf, count, offset - 1); \
445 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset, NULL);\
446 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
447 show_fan_##offset##_min, set_fan_##offset##_min);
452 static ssize_t set_fan_1_div(struct device *dev, struct device_attribute *attr, const char *buf,
455 return set_fan_div(dev, buf, count, 0) ;
458 static ssize_t set_fan_2_div(struct device *dev, struct device_attribute *attr, const char *buf,
461 return set_fan_div(dev, buf, count, 1) ;
463 static DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
464 show_fan_1_div, set_fan_1_div);
465 static DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
466 show_fan_2_div, set_fan_2_div);
469 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
471 struct sis5595_data *data = sis5595_update_device(dev);
472 return sprintf(buf, "%d\n", data->alarms);
474 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
476 static struct attribute *sis5595_attributes[] = {
477 &dev_attr_in0_input.attr,
478 &dev_attr_in0_min.attr,
479 &dev_attr_in0_max.attr,
480 &dev_attr_in1_input.attr,
481 &dev_attr_in1_min.attr,
482 &dev_attr_in1_max.attr,
483 &dev_attr_in2_input.attr,
484 &dev_attr_in2_min.attr,
485 &dev_attr_in2_max.attr,
486 &dev_attr_in3_input.attr,
487 &dev_attr_in3_min.attr,
488 &dev_attr_in3_max.attr,
490 &dev_attr_fan1_input.attr,
491 &dev_attr_fan1_min.attr,
492 &dev_attr_fan1_div.attr,
493 &dev_attr_fan2_input.attr,
494 &dev_attr_fan2_min.attr,
495 &dev_attr_fan2_div.attr,
497 &dev_attr_alarms.attr,
501 static const struct attribute_group sis5595_group = {
502 .attrs = sis5595_attributes,
505 static struct attribute *sis5595_attributes_opt[] = {
506 &dev_attr_in4_input.attr,
507 &dev_attr_in4_min.attr,
508 &dev_attr_in4_max.attr,
510 &dev_attr_temp1_input.attr,
511 &dev_attr_temp1_max.attr,
512 &dev_attr_temp1_max_hyst.attr,
516 static const struct attribute_group sis5595_group_opt = {
517 .attrs = sis5595_attributes_opt,
520 /* This is called when the module is loaded */
521 static int sis5595_detect(struct i2c_adapter *adapter)
525 struct i2c_client *new_client;
526 struct sis5595_data *data;
531 address = force_addr & ~(SIS5595_EXTENT - 1);
532 /* Reserve the ISA region */
533 if (!request_region(address, SIS5595_EXTENT,
534 sis5595_driver.driver.name)) {
539 dev_warn(&adapter->dev, "forcing ISA address 0x%04X\n", address);
540 if (PCIBIOS_SUCCESSFUL !=
541 pci_write_config_word(s_bridge, SIS5595_BASE_REG, address))
543 if (PCIBIOS_SUCCESSFUL !=
544 pci_read_config_word(s_bridge, SIS5595_BASE_REG, &a))
546 if ((a & ~(SIS5595_EXTENT - 1)) != address)
547 /* doesn't work for some chips? */
551 if (PCIBIOS_SUCCESSFUL !=
552 pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val)) {
555 if ((val & 0x80) == 0) {
556 if (PCIBIOS_SUCCESSFUL !=
557 pci_write_config_byte(s_bridge, SIS5595_ENABLE_REG,
560 if (PCIBIOS_SUCCESSFUL !=
561 pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val))
563 if ((val & 0x80) == 0)
564 /* doesn't work for some chips! */
568 if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) {
573 new_client = &data->client;
574 new_client->addr = address;
575 mutex_init(&data->lock);
576 i2c_set_clientdata(new_client, data);
577 new_client->adapter = adapter;
578 new_client->driver = &sis5595_driver;
579 new_client->flags = 0;
581 /* Check revision and pin registers to determine whether 4 or 5 voltages */
582 pci_read_config_byte(s_bridge, SIS5595_REVISION_REG, &(data->revision));
583 /* 4 voltages, 1 temp */
585 if (data->revision >= REV2MIN) {
586 pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val);
588 /* 5 voltages, no temps */
592 /* Fill in the remaining client fields and put it into the global list */
593 strlcpy(new_client->name, "sis5595", I2C_NAME_SIZE);
596 mutex_init(&data->update_lock);
598 /* Tell the I2C layer a new client has arrived */
599 if ((err = i2c_attach_client(new_client)))
602 /* Initialize the SIS5595 chip */
603 sis5595_init_client(new_client);
605 /* A few vars need to be filled upon startup */
606 for (i = 0; i < 2; i++) {
607 data->fan_min[i] = sis5595_read_value(new_client,
608 SIS5595_REG_FAN_MIN(i));
611 /* Register sysfs hooks */
612 if ((err = sysfs_create_group(&new_client->dev.kobj, &sis5595_group)))
614 if (data->maxins == 4) {
615 if ((err = device_create_file(&new_client->dev,
616 &dev_attr_in4_input))
617 || (err = device_create_file(&new_client->dev,
619 || (err = device_create_file(&new_client->dev,
621 goto exit_remove_files;
623 if ((err = device_create_file(&new_client->dev,
624 &dev_attr_temp1_input))
625 || (err = device_create_file(&new_client->dev,
626 &dev_attr_temp1_max))
627 || (err = device_create_file(&new_client->dev,
628 &dev_attr_temp1_max_hyst)))
629 goto exit_remove_files;
632 data->class_dev = hwmon_device_register(&new_client->dev);
633 if (IS_ERR(data->class_dev)) {
634 err = PTR_ERR(data->class_dev);
635 goto exit_remove_files;
641 sysfs_remove_group(&new_client->dev.kobj, &sis5595_group);
642 sysfs_remove_group(&new_client->dev.kobj, &sis5595_group_opt);
644 i2c_detach_client(new_client);
648 release_region(address, SIS5595_EXTENT);
653 static int sis5595_detach_client(struct i2c_client *client)
655 struct sis5595_data *data = i2c_get_clientdata(client);
658 hwmon_device_unregister(data->class_dev);
659 sysfs_remove_group(&client->dev.kobj, &sis5595_group);
660 sysfs_remove_group(&client->dev.kobj, &sis5595_group_opt);
662 if ((err = i2c_detach_client(client)))
665 release_region(client->addr, SIS5595_EXTENT);
673 /* ISA access must be locked explicitly. */
674 static int sis5595_read_value(struct i2c_client *client, u8 reg)
678 struct sis5595_data *data = i2c_get_clientdata(client);
679 mutex_lock(&data->lock);
680 outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
681 res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET);
682 mutex_unlock(&data->lock);
686 static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value)
688 struct sis5595_data *data = i2c_get_clientdata(client);
689 mutex_lock(&data->lock);
690 outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
691 outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET);
692 mutex_unlock(&data->lock);
696 /* Called when we have found a new SIS5595. */
697 static void sis5595_init_client(struct i2c_client *client)
699 u8 config = sis5595_read_value(client, SIS5595_REG_CONFIG);
700 if (!(config & 0x01))
701 sis5595_write_value(client, SIS5595_REG_CONFIG,
702 (config & 0xf7) | 0x01);
705 static struct sis5595_data *sis5595_update_device(struct device *dev)
707 struct i2c_client *client = to_i2c_client(dev);
708 struct sis5595_data *data = i2c_get_clientdata(client);
711 mutex_lock(&data->update_lock);
713 if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
716 for (i = 0; i <= data->maxins; i++) {
718 sis5595_read_value(client, SIS5595_REG_IN(i));
720 sis5595_read_value(client,
721 SIS5595_REG_IN_MIN(i));
723 sis5595_read_value(client,
724 SIS5595_REG_IN_MAX(i));
726 for (i = 0; i < 2; i++) {
728 sis5595_read_value(client, SIS5595_REG_FAN(i));
730 sis5595_read_value(client,
731 SIS5595_REG_FAN_MIN(i));
733 if (data->maxins == 3) {
735 sis5595_read_value(client, SIS5595_REG_TEMP);
737 sis5595_read_value(client, SIS5595_REG_TEMP_OVER);
739 sis5595_read_value(client, SIS5595_REG_TEMP_HYST);
741 i = sis5595_read_value(client, SIS5595_REG_FANDIV);
742 data->fan_div[0] = (i >> 4) & 0x03;
743 data->fan_div[1] = i >> 6;
745 sis5595_read_value(client, SIS5595_REG_ALARM1) |
746 (sis5595_read_value(client, SIS5595_REG_ALARM2) << 8);
747 data->last_updated = jiffies;
751 mutex_unlock(&data->update_lock);
756 static struct pci_device_id sis5595_pci_ids[] = {
757 { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
761 MODULE_DEVICE_TABLE(pci, sis5595_pci_ids);
763 static int blacklist[] __devinitdata = {
764 PCI_DEVICE_ID_SI_540,
765 PCI_DEVICE_ID_SI_550,
766 PCI_DEVICE_ID_SI_630,
767 PCI_DEVICE_ID_SI_645,
768 PCI_DEVICE_ID_SI_730,
769 PCI_DEVICE_ID_SI_735,
770 PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but
771 that ID shows up in other chips so we
772 use the 5511 ID for recognition */
773 PCI_DEVICE_ID_SI_5597,
774 PCI_DEVICE_ID_SI_5598,
777 static int __devinit sis5595_pci_probe(struct pci_dev *dev,
778 const struct pci_device_id *id)
783 for (i = blacklist; *i != 0; i++) {
785 dev = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL);
787 dev_err(&dev->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i);
793 if (PCIBIOS_SUCCESSFUL !=
794 pci_read_config_word(dev, SIS5595_BASE_REG, &val))
797 address = val & ~(SIS5595_EXTENT - 1);
798 if (address == 0 && force_addr == 0) {
799 dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n");
803 s_bridge = pci_dev_get(dev);
804 if (i2c_isa_add_driver(&sis5595_driver)) {
805 pci_dev_put(s_bridge);
809 /* Always return failure here. This is to allow other drivers to bind
810 * to this pci device. We don't really want to have control over the
811 * pci device, we only wanted to read as few register values from it.
816 static struct pci_driver sis5595_pci_driver = {
818 .id_table = sis5595_pci_ids,
819 .probe = sis5595_pci_probe,
822 static int __init sm_sis5595_init(void)
824 return pci_register_driver(&sis5595_pci_driver);
827 static void __exit sm_sis5595_exit(void)
829 pci_unregister_driver(&sis5595_pci_driver);
830 if (s_bridge != NULL) {
831 i2c_isa_del_driver(&sis5595_driver);
832 pci_dev_put(s_bridge);
837 MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
838 MODULE_DESCRIPTION("SiS 5595 Sensor device");
839 MODULE_LICENSE("GPL");
841 module_init(sm_sis5595_init);
842 module_exit(sm_sis5595_exit);