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1da177e4 LT |
1 | /* |
2 | sis5595.c - Part of lm_sensors, Linux kernel modules | |
3 | for hardware monitoring | |
4 | ||
5 | Copyright (C) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>, | |
96de0e25 | 6 | Kyösti Mälkki <kmalkki@cc.hut.fi>, and |
1da177e4 LT |
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> | |
10 | ||
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. | |
15 | ||
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. | |
20 | ||
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. | |
24 | */ | |
25 | ||
26 | /* | |
27 | SiS southbridge has a LM78-like chip integrated on the same IC. | |
28 | This driver is a customized copy of lm78.c | |
29 | ||
30 | Supports following revisions: | |
31 | Version PCI ID PCI Revision | |
32 | 1 1039/0008 AF or less | |
33 | 2 1039/0008 B0 or greater | |
34 | ||
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. | |
38 | ||
39 | NOT SUPPORTED PCI ID BLACKLIST PCI ID | |
40 | 540 0008 0540 | |
41 | 550 0008 0550 | |
42 | 5513 0008 5511 | |
43 | 5581 0008 5597 | |
44 | 5582 0008 5597 | |
45 | 5597 0008 5597 | |
46 | 5598 0008 5597/5598 | |
47 | 630 0008 0630 | |
48 | 645 0008 0645 | |
49 | 730 0008 0730 | |
50 | 735 0008 0735 | |
51 | */ | |
52 | ||
4b2515db JP |
53 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
54 | ||
1da177e4 LT |
55 | #include <linux/module.h> |
56 | #include <linux/slab.h> | |
57 | #include <linux/ioport.h> | |
58 | #include <linux/pci.h> | |
17e7dc43 | 59 | #include <linux/platform_device.h> |
943b0830 | 60 | #include <linux/hwmon.h> |
1f5f48dd | 61 | #include <linux/hwmon-sysfs.h> |
943b0830 | 62 | #include <linux/err.h> |
1da177e4 | 63 | #include <linux/init.h> |
ff324094 | 64 | #include <linux/jiffies.h> |
9a61bf63 | 65 | #include <linux/mutex.h> |
a5ebe668 | 66 | #include <linux/sysfs.h> |
b9acb64a | 67 | #include <linux/acpi.h> |
6055fae8 | 68 | #include <linux/io.h> |
1da177e4 LT |
69 | |
70 | ||
71 | /* If force_addr is set to anything different from 0, we forcibly enable | |
72 | the device at the given address. */ | |
73 | static u16 force_addr; | |
74 | module_param(force_addr, ushort, 0); | |
75 | MODULE_PARM_DESC(force_addr, | |
76 | "Initialize the base address of the sensors"); | |
77 | ||
17e7dc43 | 78 | static struct platform_device *pdev; |
1da177e4 LT |
79 | |
80 | /* Many SIS5595 constants specified below */ | |
81 | ||
82 | /* Length of ISA address segment */ | |
83 | #define SIS5595_EXTENT 8 | |
84 | /* PCI Config Registers */ | |
1da177e4 LT |
85 | #define SIS5595_BASE_REG 0x68 |
86 | #define SIS5595_PIN_REG 0x7A | |
87 | #define SIS5595_ENABLE_REG 0x7B | |
88 | ||
89 | /* Where are the ISA address/data registers relative to the base address */ | |
90 | #define SIS5595_ADDR_REG_OFFSET 5 | |
91 | #define SIS5595_DATA_REG_OFFSET 6 | |
92 | ||
93 | /* The SIS5595 registers */ | |
94 | #define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2) | |
95 | #define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2) | |
96 | #define SIS5595_REG_IN(nr) (0x20 + (nr)) | |
97 | ||
98 | #define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr)) | |
99 | #define SIS5595_REG_FAN(nr) (0x28 + (nr)) | |
100 | ||
101 | /* On the first version of the chip, the temp registers are separate. | |
102 | On the second version, | |
103 | TEMP pin is shared with IN4, configured in PCI register 0x7A. | |
104 | The registers are the same as well. | |
105 | OVER and HYST are really MAX and MIN. */ | |
106 | ||
107 | #define REV2MIN 0xb0 | |
108 | #define SIS5595_REG_TEMP (( data->revision) >= REV2MIN) ? \ | |
109 | SIS5595_REG_IN(4) : 0x27 | |
110 | #define SIS5595_REG_TEMP_OVER (( data->revision) >= REV2MIN) ? \ | |
111 | SIS5595_REG_IN_MAX(4) : 0x39 | |
112 | #define SIS5595_REG_TEMP_HYST (( data->revision) >= REV2MIN) ? \ | |
113 | SIS5595_REG_IN_MIN(4) : 0x3a | |
114 | ||
115 | #define SIS5595_REG_CONFIG 0x40 | |
116 | #define SIS5595_REG_ALARM1 0x41 | |
117 | #define SIS5595_REG_ALARM2 0x42 | |
118 | #define SIS5595_REG_FANDIV 0x47 | |
119 | ||
120 | /* Conversions. Limit checking is only done on the TO_REG | |
121 | variants. */ | |
122 | ||
123 | /* IN: mV, (0V to 4.08V) | |
124 | REG: 16mV/bit */ | |
125 | static inline u8 IN_TO_REG(unsigned long val) | |
126 | { | |
127 | unsigned long nval = SENSORS_LIMIT(val, 0, 4080); | |
128 | return (nval + 8) / 16; | |
129 | } | |
130 | #define IN_FROM_REG(val) ((val) * 16) | |
131 | ||
132 | static inline u8 FAN_TO_REG(long rpm, int div) | |
133 | { | |
134 | if (rpm <= 0) | |
135 | return 255; | |
136 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
137 | } | |
138 | ||
139 | static inline int FAN_FROM_REG(u8 val, int div) | |
140 | { | |
141 | return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div); | |
142 | } | |
143 | ||
144 | /* TEMP: mC (-54.12C to +157.53C) | |
145 | REG: 0.83C/bit + 52.12, two's complement */ | |
146 | static inline int TEMP_FROM_REG(s8 val) | |
147 | { | |
148 | return val * 830 + 52120; | |
149 | } | |
150 | static inline s8 TEMP_TO_REG(int val) | |
151 | { | |
152 | int nval = SENSORS_LIMIT(val, -54120, 157530) ; | |
153 | return nval<0 ? (nval-5212-415)/830 : (nval-5212+415)/830; | |
154 | } | |
155 | ||
156 | /* FAN DIV: 1, 2, 4, or 8 (defaults to 2) | |
157 | REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ | |
158 | static inline u8 DIV_TO_REG(int val) | |
159 | { | |
160 | return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1; | |
161 | } | |
162 | #define DIV_FROM_REG(val) (1 << (val)) | |
163 | ||
ed6bafbf JD |
164 | /* For each registered chip, we need to keep some data in memory. |
165 | The structure is dynamically allocated. */ | |
1da177e4 | 166 | struct sis5595_data { |
17e7dc43 JD |
167 | unsigned short addr; |
168 | const char *name; | |
1beeffe4 | 169 | struct device *hwmon_dev; |
9a61bf63 | 170 | struct mutex lock; |
1da177e4 | 171 | |
9a61bf63 | 172 | struct mutex update_lock; |
1da177e4 LT |
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 */ | |
177 | ||
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 */ | |
188 | }; | |
189 | ||
190 | static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ | |
191 | ||
17e7dc43 | 192 | static int sis5595_probe(struct platform_device *pdev); |
d0546128 | 193 | static int __devexit sis5595_remove(struct platform_device *pdev); |
1da177e4 | 194 | |
17e7dc43 JD |
195 | static int sis5595_read_value(struct sis5595_data *data, u8 reg); |
196 | static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value); | |
1da177e4 | 197 | static struct sis5595_data *sis5595_update_device(struct device *dev); |
17e7dc43 | 198 | static void sis5595_init_device(struct sis5595_data *data); |
1da177e4 | 199 | |
17e7dc43 | 200 | static struct platform_driver sis5595_driver = { |
cdaf7934 | 201 | .driver = { |
87218842 | 202 | .owner = THIS_MODULE, |
cdaf7934 LR |
203 | .name = "sis5595", |
204 | }, | |
17e7dc43 JD |
205 | .probe = sis5595_probe, |
206 | .remove = __devexit_p(sis5595_remove), | |
1da177e4 LT |
207 | }; |
208 | ||
209 | /* 4 Voltages */ | |
1f5f48dd JD |
210 | static ssize_t show_in(struct device *dev, struct device_attribute *da, |
211 | char *buf) | |
1da177e4 LT |
212 | { |
213 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
214 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
215 | int nr = attr->index; | |
1da177e4 LT |
216 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); |
217 | } | |
218 | ||
1f5f48dd JD |
219 | static ssize_t show_in_min(struct device *dev, struct device_attribute *da, |
220 | char *buf) | |
1da177e4 LT |
221 | { |
222 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
223 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
224 | int nr = attr->index; | |
1da177e4 LT |
225 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); |
226 | } | |
227 | ||
1f5f48dd JD |
228 | static ssize_t show_in_max(struct device *dev, struct device_attribute *da, |
229 | char *buf) | |
1da177e4 LT |
230 | { |
231 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
232 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
233 | int nr = attr->index; | |
1da177e4 LT |
234 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); |
235 | } | |
236 | ||
1f5f48dd JD |
237 | static ssize_t set_in_min(struct device *dev, struct device_attribute *da, |
238 | const char *buf, size_t count) | |
1da177e4 | 239 | { |
17e7dc43 | 240 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
241 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
242 | int nr = attr->index; | |
1da177e4 LT |
243 | unsigned long val = simple_strtoul(buf, NULL, 10); |
244 | ||
9a61bf63 | 245 | mutex_lock(&data->update_lock); |
1da177e4 | 246 | data->in_min[nr] = IN_TO_REG(val); |
17e7dc43 | 247 | sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); |
9a61bf63 | 248 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
249 | return count; |
250 | } | |
251 | ||
1f5f48dd JD |
252 | static ssize_t set_in_max(struct device *dev, struct device_attribute *da, |
253 | const char *buf, size_t count) | |
1da177e4 | 254 | { |
17e7dc43 | 255 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
256 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
257 | int nr = attr->index; | |
1da177e4 LT |
258 | unsigned long val = simple_strtoul(buf, NULL, 10); |
259 | ||
9a61bf63 | 260 | mutex_lock(&data->update_lock); |
1da177e4 | 261 | data->in_max[nr] = IN_TO_REG(val); |
17e7dc43 | 262 | sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); |
9a61bf63 | 263 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
264 | return count; |
265 | } | |
266 | ||
267 | #define show_in_offset(offset) \ | |
1f5f48dd JD |
268 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
269 | show_in, NULL, offset); \ | |
270 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
271 | show_in_min, set_in_min, offset); \ | |
272 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
273 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
274 | |
275 | show_in_offset(0); | |
276 | show_in_offset(1); | |
277 | show_in_offset(2); | |
278 | show_in_offset(3); | |
279 | show_in_offset(4); | |
280 | ||
281 | /* Temperature */ | |
a5099cfc | 282 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
283 | { |
284 | struct sis5595_data *data = sis5595_update_device(dev); | |
285 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp)); | |
286 | } | |
287 | ||
a5099cfc | 288 | static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
289 | { |
290 | struct sis5595_data *data = sis5595_update_device(dev); | |
291 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over)); | |
292 | } | |
293 | ||
a5099cfc | 294 | static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 295 | { |
17e7dc43 | 296 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
297 | long val = simple_strtol(buf, NULL, 10); |
298 | ||
9a61bf63 | 299 | mutex_lock(&data->update_lock); |
1da177e4 | 300 | data->temp_over = TEMP_TO_REG(val); |
17e7dc43 | 301 | sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over); |
9a61bf63 | 302 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
303 | return count; |
304 | } | |
305 | ||
a5099cfc | 306 | static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
307 | { |
308 | struct sis5595_data *data = sis5595_update_device(dev); | |
309 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst)); | |
310 | } | |
311 | ||
a5099cfc | 312 | static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 313 | { |
17e7dc43 | 314 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
315 | long val = simple_strtol(buf, NULL, 10); |
316 | ||
9a61bf63 | 317 | mutex_lock(&data->update_lock); |
1da177e4 | 318 | data->temp_hyst = TEMP_TO_REG(val); |
17e7dc43 | 319 | sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst); |
9a61bf63 | 320 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
321 | return count; |
322 | } | |
323 | ||
324 | static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL); | |
325 | static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, | |
326 | show_temp_over, set_temp_over); | |
327 | static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, | |
328 | show_temp_hyst, set_temp_hyst); | |
329 | ||
330 | /* 2 Fans */ | |
1f5f48dd JD |
331 | static ssize_t show_fan(struct device *dev, struct device_attribute *da, |
332 | char *buf) | |
1da177e4 LT |
333 | { |
334 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
335 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
336 | int nr = attr->index; | |
1da177e4 LT |
337 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
338 | DIV_FROM_REG(data->fan_div[nr])) ); | |
339 | } | |
340 | ||
1f5f48dd JD |
341 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *da, |
342 | char *buf) | |
1da177e4 LT |
343 | { |
344 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
345 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
346 | int nr = attr->index; | |
1da177e4 LT |
347 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr], |
348 | DIV_FROM_REG(data->fan_div[nr])) ); | |
349 | } | |
350 | ||
1f5f48dd JD |
351 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *da, |
352 | const char *buf, size_t count) | |
1da177e4 | 353 | { |
17e7dc43 | 354 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
355 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
356 | int nr = attr->index; | |
1da177e4 LT |
357 | unsigned long val = simple_strtoul(buf, NULL, 10); |
358 | ||
9a61bf63 | 359 | mutex_lock(&data->update_lock); |
1da177e4 | 360 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
17e7dc43 | 361 | sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 362 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
363 | return count; |
364 | } | |
365 | ||
1f5f48dd JD |
366 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *da, |
367 | char *buf) | |
1da177e4 LT |
368 | { |
369 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
370 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
371 | int nr = attr->index; | |
1da177e4 LT |
372 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) ); |
373 | } | |
374 | ||
375 | /* Note: we save and restore the fan minimum here, because its value is | |
376 | determined in part by the fan divisor. This follows the principle of | |
d6e05edc | 377 | least surprise; the user doesn't expect the fan minimum to change just |
1da177e4 | 378 | because the divisor changed. */ |
1f5f48dd JD |
379 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, |
380 | const char *buf, size_t count) | |
1da177e4 | 381 | { |
17e7dc43 | 382 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
383 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
384 | int nr = attr->index; | |
1da177e4 LT |
385 | unsigned long min; |
386 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
387 | int reg; | |
388 | ||
9a61bf63 | 389 | mutex_lock(&data->update_lock); |
1da177e4 LT |
390 | min = FAN_FROM_REG(data->fan_min[nr], |
391 | DIV_FROM_REG(data->fan_div[nr])); | |
17e7dc43 | 392 | reg = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4 LT |
393 | |
394 | switch (val) { | |
395 | case 1: data->fan_div[nr] = 0; break; | |
396 | case 2: data->fan_div[nr] = 1; break; | |
397 | case 4: data->fan_div[nr] = 2; break; | |
398 | case 8: data->fan_div[nr] = 3; break; | |
399 | default: | |
17e7dc43 | 400 | dev_err(dev, "fan_div value %ld not " |
1da177e4 | 401 | "supported. Choose one of 1, 2, 4 or 8!\n", val); |
9a61bf63 | 402 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
403 | return -EINVAL; |
404 | } | |
405 | ||
406 | switch (nr) { | |
407 | case 0: | |
408 | reg = (reg & 0xcf) | (data->fan_div[nr] << 4); | |
409 | break; | |
410 | case 1: | |
411 | reg = (reg & 0x3f) | (data->fan_div[nr] << 6); | |
412 | break; | |
413 | } | |
17e7dc43 | 414 | sis5595_write_value(data, SIS5595_REG_FANDIV, reg); |
1da177e4 LT |
415 | data->fan_min[nr] = |
416 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
17e7dc43 | 417 | sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 418 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
419 | return count; |
420 | } | |
421 | ||
422 | #define show_fan_offset(offset) \ | |
1f5f48dd JD |
423 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
424 | show_fan, NULL, offset - 1); \ | |
425 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
426 | show_fan_min, set_fan_min, offset - 1); \ | |
427 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
428 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
429 | |
430 | show_fan_offset(1); | |
431 | show_fan_offset(2); | |
432 | ||
1da177e4 | 433 | /* Alarms */ |
a5099cfc | 434 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
435 | { |
436 | struct sis5595_data *data = sis5595_update_device(dev); | |
437 | return sprintf(buf, "%d\n", data->alarms); | |
438 | } | |
439 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
a5ebe668 | 440 | |
5c726b3b IM |
441 | static ssize_t show_alarm(struct device *dev, struct device_attribute *da, |
442 | char *buf) | |
443 | { | |
444 | struct sis5595_data *data = sis5595_update_device(dev); | |
445 | int nr = to_sensor_dev_attr(da)->index; | |
446 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
447 | } | |
448 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
449 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
450 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
451 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
452 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 15); | |
453 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); | |
454 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); | |
455 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 15); | |
456 | ||
17e7dc43 JD |
457 | static ssize_t show_name(struct device *dev, struct device_attribute *attr, |
458 | char *buf) | |
459 | { | |
460 | struct sis5595_data *data = dev_get_drvdata(dev); | |
461 | return sprintf(buf, "%s\n", data->name); | |
462 | } | |
463 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
464 | ||
a5ebe668 | 465 | static struct attribute *sis5595_attributes[] = { |
1f5f48dd JD |
466 | &sensor_dev_attr_in0_input.dev_attr.attr, |
467 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
468 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
5c726b3b | 469 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1f5f48dd JD |
470 | &sensor_dev_attr_in1_input.dev_attr.attr, |
471 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
472 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
5c726b3b | 473 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1f5f48dd JD |
474 | &sensor_dev_attr_in2_input.dev_attr.attr, |
475 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
476 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
5c726b3b | 477 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1f5f48dd JD |
478 | &sensor_dev_attr_in3_input.dev_attr.attr, |
479 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
480 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
5c726b3b | 481 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1f5f48dd JD |
482 | |
483 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
484 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
485 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
5c726b3b | 486 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1f5f48dd JD |
487 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
488 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
489 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
5c726b3b | 490 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
a5ebe668 JD |
491 | |
492 | &dev_attr_alarms.attr, | |
17e7dc43 | 493 | &dev_attr_name.attr, |
a5ebe668 JD |
494 | NULL |
495 | }; | |
496 | ||
497 | static const struct attribute_group sis5595_group = { | |
498 | .attrs = sis5595_attributes, | |
499 | }; | |
500 | ||
76e63860 | 501 | static struct attribute *sis5595_attributes_in4[] = { |
1f5f48dd JD |
502 | &sensor_dev_attr_in4_input.dev_attr.attr, |
503 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
504 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
5c726b3b | 505 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
76e63860 IM |
506 | NULL |
507 | }; | |
508 | ||
509 | static const struct attribute_group sis5595_group_in4 = { | |
510 | .attrs = sis5595_attributes_in4, | |
511 | }; | |
a5ebe668 | 512 | |
76e63860 | 513 | static struct attribute *sis5595_attributes_temp1[] = { |
a5ebe668 JD |
514 | &dev_attr_temp1_input.attr, |
515 | &dev_attr_temp1_max.attr, | |
516 | &dev_attr_temp1_max_hyst.attr, | |
5c726b3b | 517 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
a5ebe668 JD |
518 | NULL |
519 | }; | |
520 | ||
76e63860 IM |
521 | static const struct attribute_group sis5595_group_temp1 = { |
522 | .attrs = sis5595_attributes_temp1, | |
a5ebe668 | 523 | }; |
1da177e4 LT |
524 | |
525 | /* This is called when the module is loaded */ | |
17e7dc43 | 526 | static int __devinit sis5595_probe(struct platform_device *pdev) |
1da177e4 LT |
527 | { |
528 | int err = 0; | |
529 | int i; | |
1da177e4 | 530 | struct sis5595_data *data; |
17e7dc43 | 531 | struct resource *res; |
1da177e4 | 532 | char val; |
1da177e4 | 533 | |
1da177e4 | 534 | /* Reserve the ISA region */ |
17e7dc43 JD |
535 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
536 | if (!request_region(res->start, SIS5595_EXTENT, | |
cdaf7934 | 537 | sis5595_driver.driver.name)) { |
1da177e4 LT |
538 | err = -EBUSY; |
539 | goto exit; | |
540 | } | |
1da177e4 | 541 | |
ba9c2e8d | 542 | if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) { |
1da177e4 LT |
543 | err = -ENOMEM; |
544 | goto exit_release; | |
545 | } | |
1da177e4 | 546 | |
9a61bf63 | 547 | mutex_init(&data->lock); |
17e7dc43 JD |
548 | mutex_init(&data->update_lock); |
549 | data->addr = res->start; | |
550 | data->name = "sis5595"; | |
551 | platform_set_drvdata(pdev, data); | |
1da177e4 LT |
552 | |
553 | /* Check revision and pin registers to determine whether 4 or 5 voltages */ | |
7b6d1f04 | 554 | data->revision = s_bridge->revision; |
1da177e4 LT |
555 | /* 4 voltages, 1 temp */ |
556 | data->maxins = 3; | |
557 | if (data->revision >= REV2MIN) { | |
558 | pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val); | |
559 | if (!(val & 0x80)) | |
560 | /* 5 voltages, no temps */ | |
561 | data->maxins = 4; | |
562 | } | |
563 | ||
1da177e4 | 564 | /* Initialize the SIS5595 chip */ |
17e7dc43 | 565 | sis5595_init_device(data); |
1da177e4 LT |
566 | |
567 | /* A few vars need to be filled upon startup */ | |
568 | for (i = 0; i < 2; i++) { | |
17e7dc43 | 569 | data->fan_min[i] = sis5595_read_value(data, |
1da177e4 LT |
570 | SIS5595_REG_FAN_MIN(i)); |
571 | } | |
572 | ||
573 | /* Register sysfs hooks */ | |
17e7dc43 JD |
574 | if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group))) |
575 | goto exit_free; | |
a5ebe668 | 576 | if (data->maxins == 4) { |
76e63860 IM |
577 | if ((err = sysfs_create_group(&pdev->dev.kobj, |
578 | &sis5595_group_in4))) | |
a5ebe668 JD |
579 | goto exit_remove_files; |
580 | } else { | |
76e63860 IM |
581 | if ((err = sysfs_create_group(&pdev->dev.kobj, |
582 | &sis5595_group_temp1))) | |
a5ebe668 JD |
583 | goto exit_remove_files; |
584 | } | |
585 | ||
1beeffe4 TJ |
586 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
587 | if (IS_ERR(data->hwmon_dev)) { | |
588 | err = PTR_ERR(data->hwmon_dev); | |
a5ebe668 | 589 | goto exit_remove_files; |
943b0830 MH |
590 | } |
591 | ||
1da177e4 | 592 | return 0; |
943b0830 | 593 | |
a5ebe668 | 594 | exit_remove_files: |
17e7dc43 | 595 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860 IM |
596 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); |
597 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); | |
1da177e4 LT |
598 | exit_free: |
599 | kfree(data); | |
600 | exit_release: | |
17e7dc43 | 601 | release_region(res->start, SIS5595_EXTENT); |
1da177e4 LT |
602 | exit: |
603 | return err; | |
604 | } | |
605 | ||
17e7dc43 | 606 | static int __devexit sis5595_remove(struct platform_device *pdev) |
1da177e4 | 607 | { |
17e7dc43 | 608 | struct sis5595_data *data = platform_get_drvdata(pdev); |
1da177e4 | 609 | |
1beeffe4 | 610 | hwmon_device_unregister(data->hwmon_dev); |
17e7dc43 | 611 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860 IM |
612 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); |
613 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); | |
1da177e4 | 614 | |
17e7dc43 JD |
615 | release_region(data->addr, SIS5595_EXTENT); |
616 | platform_set_drvdata(pdev, NULL); | |
943b0830 | 617 | kfree(data); |
1da177e4 LT |
618 | |
619 | return 0; | |
620 | } | |
621 | ||
622 | ||
623 | /* ISA access must be locked explicitly. */ | |
17e7dc43 | 624 | static int sis5595_read_value(struct sis5595_data *data, u8 reg) |
1da177e4 LT |
625 | { |
626 | int res; | |
627 | ||
9a61bf63 | 628 | mutex_lock(&data->lock); |
17e7dc43 JD |
629 | outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); |
630 | res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET); | |
9a61bf63 | 631 | mutex_unlock(&data->lock); |
1da177e4 LT |
632 | return res; |
633 | } | |
634 | ||
17e7dc43 | 635 | static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) |
1da177e4 | 636 | { |
9a61bf63 | 637 | mutex_lock(&data->lock); |
17e7dc43 JD |
638 | outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); |
639 | outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET); | |
9a61bf63 | 640 | mutex_unlock(&data->lock); |
1da177e4 LT |
641 | } |
642 | ||
643 | /* Called when we have found a new SIS5595. */ | |
17e7dc43 | 644 | static void __devinit sis5595_init_device(struct sis5595_data *data) |
1da177e4 | 645 | { |
17e7dc43 | 646 | u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG); |
1da177e4 | 647 | if (!(config & 0x01)) |
17e7dc43 | 648 | sis5595_write_value(data, SIS5595_REG_CONFIG, |
1da177e4 LT |
649 | (config & 0xf7) | 0x01); |
650 | } | |
651 | ||
652 | static struct sis5595_data *sis5595_update_device(struct device *dev) | |
653 | { | |
17e7dc43 | 654 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
655 | int i; |
656 | ||
9a61bf63 | 657 | mutex_lock(&data->update_lock); |
1da177e4 LT |
658 | |
659 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
660 | || !data->valid) { | |
661 | ||
662 | for (i = 0; i <= data->maxins; i++) { | |
663 | data->in[i] = | |
17e7dc43 | 664 | sis5595_read_value(data, SIS5595_REG_IN(i)); |
1da177e4 | 665 | data->in_min[i] = |
17e7dc43 | 666 | sis5595_read_value(data, |
1da177e4 LT |
667 | SIS5595_REG_IN_MIN(i)); |
668 | data->in_max[i] = | |
17e7dc43 | 669 | sis5595_read_value(data, |
1da177e4 LT |
670 | SIS5595_REG_IN_MAX(i)); |
671 | } | |
672 | for (i = 0; i < 2; i++) { | |
673 | data->fan[i] = | |
17e7dc43 | 674 | sis5595_read_value(data, SIS5595_REG_FAN(i)); |
1da177e4 | 675 | data->fan_min[i] = |
17e7dc43 | 676 | sis5595_read_value(data, |
1da177e4 LT |
677 | SIS5595_REG_FAN_MIN(i)); |
678 | } | |
679 | if (data->maxins == 3) { | |
680 | data->temp = | |
17e7dc43 | 681 | sis5595_read_value(data, SIS5595_REG_TEMP); |
1da177e4 | 682 | data->temp_over = |
17e7dc43 | 683 | sis5595_read_value(data, SIS5595_REG_TEMP_OVER); |
1da177e4 | 684 | data->temp_hyst = |
17e7dc43 | 685 | sis5595_read_value(data, SIS5595_REG_TEMP_HYST); |
1da177e4 | 686 | } |
17e7dc43 | 687 | i = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4 LT |
688 | data->fan_div[0] = (i >> 4) & 0x03; |
689 | data->fan_div[1] = i >> 6; | |
690 | data->alarms = | |
17e7dc43 JD |
691 | sis5595_read_value(data, SIS5595_REG_ALARM1) | |
692 | (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8); | |
1da177e4 LT |
693 | data->last_updated = jiffies; |
694 | data->valid = 1; | |
695 | } | |
696 | ||
9a61bf63 | 697 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
698 | |
699 | return data; | |
700 | } | |
701 | ||
3dd3a156 | 702 | static const struct pci_device_id sis5595_pci_ids[] = { |
1da177e4 LT |
703 | { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, |
704 | { 0, } | |
705 | }; | |
706 | ||
707 | MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); | |
708 | ||
709 | static int blacklist[] __devinitdata = { | |
710 | PCI_DEVICE_ID_SI_540, | |
711 | PCI_DEVICE_ID_SI_550, | |
712 | PCI_DEVICE_ID_SI_630, | |
713 | PCI_DEVICE_ID_SI_645, | |
714 | PCI_DEVICE_ID_SI_730, | |
715 | PCI_DEVICE_ID_SI_735, | |
716 | PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but | |
717 | that ID shows up in other chips so we | |
718 | use the 5511 ID for recognition */ | |
719 | PCI_DEVICE_ID_SI_5597, | |
720 | PCI_DEVICE_ID_SI_5598, | |
721 | 0 }; | |
722 | ||
17e7dc43 JD |
723 | static int __devinit sis5595_device_add(unsigned short address) |
724 | { | |
725 | struct resource res = { | |
726 | .start = address, | |
727 | .end = address + SIS5595_EXTENT - 1, | |
728 | .name = "sis5595", | |
729 | .flags = IORESOURCE_IO, | |
730 | }; | |
731 | int err; | |
732 | ||
b9acb64a JD |
733 | err = acpi_check_resource_conflict(&res); |
734 | if (err) | |
735 | goto exit; | |
736 | ||
17e7dc43 JD |
737 | pdev = platform_device_alloc("sis5595", address); |
738 | if (!pdev) { | |
739 | err = -ENOMEM; | |
4b2515db | 740 | pr_err("Device allocation failed\n"); |
17e7dc43 JD |
741 | goto exit; |
742 | } | |
743 | ||
744 | err = platform_device_add_resources(pdev, &res, 1); | |
745 | if (err) { | |
4b2515db | 746 | pr_err("Device resource addition failed (%d)\n", err); |
17e7dc43 JD |
747 | goto exit_device_put; |
748 | } | |
749 | ||
750 | err = platform_device_add(pdev); | |
751 | if (err) { | |
4b2515db | 752 | pr_err("Device addition failed (%d)\n", err); |
17e7dc43 JD |
753 | goto exit_device_put; |
754 | } | |
755 | ||
756 | return 0; | |
757 | ||
758 | exit_device_put: | |
759 | platform_device_put(pdev); | |
760 | exit: | |
761 | return err; | |
762 | } | |
763 | ||
1da177e4 LT |
764 | static int __devinit sis5595_pci_probe(struct pci_dev *dev, |
765 | const struct pci_device_id *id) | |
766 | { | |
17e7dc43 JD |
767 | u16 address; |
768 | u8 enable; | |
1da177e4 | 769 | int *i; |
1da177e4 LT |
770 | |
771 | for (i = blacklist; *i != 0; i++) { | |
5460a9d0 MH |
772 | struct pci_dev *d; |
773 | if ((d = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL))) { | |
774 | dev_err(&d->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i); | |
775 | pci_dev_put(d); | |
1da177e4 LT |
776 | return -ENODEV; |
777 | } | |
778 | } | |
779 | ||
17e7dc43 JD |
780 | force_addr &= ~(SIS5595_EXTENT - 1); |
781 | if (force_addr) { | |
782 | dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr); | |
783 | pci_write_config_word(dev, SIS5595_BASE_REG, force_addr); | |
784 | } | |
785 | ||
1da177e4 | 786 | if (PCIBIOS_SUCCESSFUL != |
17e7dc43 JD |
787 | pci_read_config_word(dev, SIS5595_BASE_REG, &address)) { |
788 | dev_err(&dev->dev, "Failed to read ISA address\n"); | |
1da177e4 | 789 | return -ENODEV; |
17e7dc43 | 790 | } |
1da177e4 | 791 | |
17e7dc43 JD |
792 | address &= ~(SIS5595_EXTENT - 1); |
793 | if (!address) { | |
1da177e4 LT |
794 | dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n"); |
795 | return -ENODEV; | |
1da177e4 | 796 | } |
17e7dc43 JD |
797 | if (force_addr && address != force_addr) { |
798 | /* doesn't work for some chips? */ | |
799 | dev_err(&dev->dev, "Failed to force ISA address\n"); | |
800 | return -ENODEV; | |
801 | } | |
1da177e4 | 802 | |
17e7dc43 JD |
803 | if (PCIBIOS_SUCCESSFUL != |
804 | pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) { | |
805 | dev_err(&dev->dev, "Failed to read enable register\n"); | |
806 | return -ENODEV; | |
807 | } | |
808 | if (!(enable & 0x80)) { | |
809 | if ((PCIBIOS_SUCCESSFUL != | |
810 | pci_write_config_byte(dev, SIS5595_ENABLE_REG, | |
811 | enable | 0x80)) | |
812 | || (PCIBIOS_SUCCESSFUL != | |
813 | pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) | |
814 | || (!(enable & 0x80))) { | |
815 | /* doesn't work for some chips! */ | |
816 | dev_err(&dev->dev, "Failed to enable HWM device\n"); | |
817 | return -ENODEV; | |
818 | } | |
1da177e4 LT |
819 | } |
820 | ||
17e7dc43 JD |
821 | if (platform_driver_register(&sis5595_driver)) { |
822 | dev_dbg(&dev->dev, "Failed to register sis5595 driver\n"); | |
823 | goto exit; | |
824 | } | |
825 | ||
826 | s_bridge = pci_dev_get(dev); | |
827 | /* Sets global pdev as a side effect */ | |
828 | if (sis5595_device_add(address)) | |
829 | goto exit_unregister; | |
830 | ||
1da177e4 LT |
831 | /* Always return failure here. This is to allow other drivers to bind |
832 | * to this pci device. We don't really want to have control over the | |
833 | * pci device, we only wanted to read as few register values from it. | |
834 | */ | |
835 | return -ENODEV; | |
17e7dc43 JD |
836 | |
837 | exit_unregister: | |
838 | pci_dev_put(dev); | |
839 | platform_driver_unregister(&sis5595_driver); | |
840 | exit: | |
841 | return -ENODEV; | |
1da177e4 LT |
842 | } |
843 | ||
844 | static struct pci_driver sis5595_pci_driver = { | |
845 | .name = "sis5595", | |
846 | .id_table = sis5595_pci_ids, | |
847 | .probe = sis5595_pci_probe, | |
848 | }; | |
849 | ||
850 | static int __init sm_sis5595_init(void) | |
851 | { | |
852 | return pci_register_driver(&sis5595_pci_driver); | |
853 | } | |
854 | ||
855 | static void __exit sm_sis5595_exit(void) | |
856 | { | |
857 | pci_unregister_driver(&sis5595_pci_driver); | |
858 | if (s_bridge != NULL) { | |
17e7dc43 JD |
859 | platform_device_unregister(pdev); |
860 | platform_driver_unregister(&sis5595_driver); | |
1da177e4 LT |
861 | pci_dev_put(s_bridge); |
862 | s_bridge = NULL; | |
863 | } | |
864 | } | |
865 | ||
866 | MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>"); | |
867 | MODULE_DESCRIPTION("SiS 5595 Sensor device"); | |
868 | MODULE_LICENSE("GPL"); | |
869 | ||
870 | module_init(sm_sis5595_init); | |
871 | module_exit(sm_sis5595_exit); |