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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 | ||
53 | #include <linux/module.h> | |
54 | #include <linux/slab.h> | |
55 | #include <linux/ioport.h> | |
56 | #include <linux/pci.h> | |
17e7dc43 | 57 | #include <linux/platform_device.h> |
943b0830 | 58 | #include <linux/hwmon.h> |
1f5f48dd | 59 | #include <linux/hwmon-sysfs.h> |
943b0830 | 60 | #include <linux/err.h> |
1da177e4 | 61 | #include <linux/init.h> |
ff324094 | 62 | #include <linux/jiffies.h> |
9a61bf63 | 63 | #include <linux/mutex.h> |
a5ebe668 | 64 | #include <linux/sysfs.h> |
b9acb64a | 65 | #include <linux/acpi.h> |
6055fae8 | 66 | #include <linux/io.h> |
1da177e4 LT |
67 | |
68 | ||
69 | /* If force_addr is set to anything different from 0, we forcibly enable | |
70 | the device at the given address. */ | |
71 | static u16 force_addr; | |
72 | module_param(force_addr, ushort, 0); | |
73 | MODULE_PARM_DESC(force_addr, | |
74 | "Initialize the base address of the sensors"); | |
75 | ||
17e7dc43 | 76 | static struct platform_device *pdev; |
1da177e4 LT |
77 | |
78 | /* Many SIS5595 constants specified below */ | |
79 | ||
80 | /* Length of ISA address segment */ | |
81 | #define SIS5595_EXTENT 8 | |
82 | /* PCI Config Registers */ | |
1da177e4 LT |
83 | #define SIS5595_BASE_REG 0x68 |
84 | #define SIS5595_PIN_REG 0x7A | |
85 | #define SIS5595_ENABLE_REG 0x7B | |
86 | ||
87 | /* Where are the ISA address/data registers relative to the base address */ | |
88 | #define SIS5595_ADDR_REG_OFFSET 5 | |
89 | #define SIS5595_DATA_REG_OFFSET 6 | |
90 | ||
91 | /* The SIS5595 registers */ | |
92 | #define SIS5595_REG_IN_MAX(nr) (0x2b + (nr) * 2) | |
93 | #define SIS5595_REG_IN_MIN(nr) (0x2c + (nr) * 2) | |
94 | #define SIS5595_REG_IN(nr) (0x20 + (nr)) | |
95 | ||
96 | #define SIS5595_REG_FAN_MIN(nr) (0x3b + (nr)) | |
97 | #define SIS5595_REG_FAN(nr) (0x28 + (nr)) | |
98 | ||
99 | /* On the first version of the chip, the temp registers are separate. | |
100 | On the second version, | |
101 | TEMP pin is shared with IN4, configured in PCI register 0x7A. | |
102 | The registers are the same as well. | |
103 | OVER and HYST are really MAX and MIN. */ | |
104 | ||
105 | #define REV2MIN 0xb0 | |
106 | #define SIS5595_REG_TEMP (( data->revision) >= REV2MIN) ? \ | |
107 | SIS5595_REG_IN(4) : 0x27 | |
108 | #define SIS5595_REG_TEMP_OVER (( data->revision) >= REV2MIN) ? \ | |
109 | SIS5595_REG_IN_MAX(4) : 0x39 | |
110 | #define SIS5595_REG_TEMP_HYST (( data->revision) >= REV2MIN) ? \ | |
111 | SIS5595_REG_IN_MIN(4) : 0x3a | |
112 | ||
113 | #define SIS5595_REG_CONFIG 0x40 | |
114 | #define SIS5595_REG_ALARM1 0x41 | |
115 | #define SIS5595_REG_ALARM2 0x42 | |
116 | #define SIS5595_REG_FANDIV 0x47 | |
117 | ||
118 | /* Conversions. Limit checking is only done on the TO_REG | |
119 | variants. */ | |
120 | ||
121 | /* IN: mV, (0V to 4.08V) | |
122 | REG: 16mV/bit */ | |
123 | static inline u8 IN_TO_REG(unsigned long val) | |
124 | { | |
125 | unsigned long nval = SENSORS_LIMIT(val, 0, 4080); | |
126 | return (nval + 8) / 16; | |
127 | } | |
128 | #define IN_FROM_REG(val) ((val) * 16) | |
129 | ||
130 | static inline u8 FAN_TO_REG(long rpm, int div) | |
131 | { | |
132 | if (rpm <= 0) | |
133 | return 255; | |
134 | return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254); | |
135 | } | |
136 | ||
137 | static inline int FAN_FROM_REG(u8 val, int div) | |
138 | { | |
139 | return val==0 ? -1 : val==255 ? 0 : 1350000/(val*div); | |
140 | } | |
141 | ||
142 | /* TEMP: mC (-54.12C to +157.53C) | |
143 | REG: 0.83C/bit + 52.12, two's complement */ | |
144 | static inline int TEMP_FROM_REG(s8 val) | |
145 | { | |
146 | return val * 830 + 52120; | |
147 | } | |
148 | static inline s8 TEMP_TO_REG(int val) | |
149 | { | |
150 | int nval = SENSORS_LIMIT(val, -54120, 157530) ; | |
151 | return nval<0 ? (nval-5212-415)/830 : (nval-5212+415)/830; | |
152 | } | |
153 | ||
154 | /* FAN DIV: 1, 2, 4, or 8 (defaults to 2) | |
155 | REG: 0, 1, 2, or 3 (respectively) (defaults to 1) */ | |
156 | static inline u8 DIV_TO_REG(int val) | |
157 | { | |
158 | return val==8 ? 3 : val==4 ? 2 : val==1 ? 0 : 1; | |
159 | } | |
160 | #define DIV_FROM_REG(val) (1 << (val)) | |
161 | ||
ed6bafbf JD |
162 | /* For each registered chip, we need to keep some data in memory. |
163 | The structure is dynamically allocated. */ | |
1da177e4 | 164 | struct sis5595_data { |
17e7dc43 JD |
165 | unsigned short addr; |
166 | const char *name; | |
1beeffe4 | 167 | struct device *hwmon_dev; |
9a61bf63 | 168 | struct mutex lock; |
1da177e4 | 169 | |
9a61bf63 | 170 | struct mutex update_lock; |
1da177e4 LT |
171 | char valid; /* !=0 if following fields are valid */ |
172 | unsigned long last_updated; /* In jiffies */ | |
173 | char maxins; /* == 3 if temp enabled, otherwise == 4 */ | |
174 | u8 revision; /* Reg. value */ | |
175 | ||
176 | u8 in[5]; /* Register value */ | |
177 | u8 in_max[5]; /* Register value */ | |
178 | u8 in_min[5]; /* Register value */ | |
179 | u8 fan[2]; /* Register value */ | |
180 | u8 fan_min[2]; /* Register value */ | |
181 | s8 temp; /* Register value */ | |
182 | s8 temp_over; /* Register value */ | |
183 | s8 temp_hyst; /* Register value */ | |
184 | u8 fan_div[2]; /* Register encoding, shifted right */ | |
185 | u16 alarms; /* Register encoding, combined */ | |
186 | }; | |
187 | ||
188 | static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ | |
189 | ||
17e7dc43 | 190 | static int sis5595_probe(struct platform_device *pdev); |
d0546128 | 191 | static int __devexit sis5595_remove(struct platform_device *pdev); |
1da177e4 | 192 | |
17e7dc43 JD |
193 | static int sis5595_read_value(struct sis5595_data *data, u8 reg); |
194 | static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value); | |
1da177e4 | 195 | static struct sis5595_data *sis5595_update_device(struct device *dev); |
17e7dc43 | 196 | static void sis5595_init_device(struct sis5595_data *data); |
1da177e4 | 197 | |
17e7dc43 | 198 | static struct platform_driver sis5595_driver = { |
cdaf7934 | 199 | .driver = { |
87218842 | 200 | .owner = THIS_MODULE, |
cdaf7934 LR |
201 | .name = "sis5595", |
202 | }, | |
17e7dc43 JD |
203 | .probe = sis5595_probe, |
204 | .remove = __devexit_p(sis5595_remove), | |
1da177e4 LT |
205 | }; |
206 | ||
207 | /* 4 Voltages */ | |
1f5f48dd JD |
208 | static ssize_t show_in(struct device *dev, struct device_attribute *da, |
209 | char *buf) | |
1da177e4 LT |
210 | { |
211 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
212 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
213 | int nr = attr->index; | |
1da177e4 LT |
214 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr])); |
215 | } | |
216 | ||
1f5f48dd JD |
217 | static ssize_t show_in_min(struct device *dev, struct device_attribute *da, |
218 | char *buf) | |
1da177e4 LT |
219 | { |
220 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
221 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
222 | int nr = attr->index; | |
1da177e4 LT |
223 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr])); |
224 | } | |
225 | ||
1f5f48dd JD |
226 | static ssize_t show_in_max(struct device *dev, struct device_attribute *da, |
227 | char *buf) | |
1da177e4 LT |
228 | { |
229 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
230 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
231 | int nr = attr->index; | |
1da177e4 LT |
232 | return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr])); |
233 | } | |
234 | ||
1f5f48dd JD |
235 | static ssize_t set_in_min(struct device *dev, struct device_attribute *da, |
236 | const char *buf, size_t count) | |
1da177e4 | 237 | { |
17e7dc43 | 238 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
239 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
240 | int nr = attr->index; | |
1da177e4 LT |
241 | unsigned long val = simple_strtoul(buf, NULL, 10); |
242 | ||
9a61bf63 | 243 | mutex_lock(&data->update_lock); |
1da177e4 | 244 | data->in_min[nr] = IN_TO_REG(val); |
17e7dc43 | 245 | sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); |
9a61bf63 | 246 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
247 | return count; |
248 | } | |
249 | ||
1f5f48dd JD |
250 | static ssize_t set_in_max(struct device *dev, struct device_attribute *da, |
251 | const char *buf, size_t count) | |
1da177e4 | 252 | { |
17e7dc43 | 253 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
254 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
255 | int nr = attr->index; | |
1da177e4 LT |
256 | unsigned long val = simple_strtoul(buf, NULL, 10); |
257 | ||
9a61bf63 | 258 | mutex_lock(&data->update_lock); |
1da177e4 | 259 | data->in_max[nr] = IN_TO_REG(val); |
17e7dc43 | 260 | sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); |
9a61bf63 | 261 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
262 | return count; |
263 | } | |
264 | ||
265 | #define show_in_offset(offset) \ | |
1f5f48dd JD |
266 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
267 | show_in, NULL, offset); \ | |
268 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ | |
269 | show_in_min, set_in_min, offset); \ | |
270 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ | |
271 | show_in_max, set_in_max, offset); | |
1da177e4 LT |
272 | |
273 | show_in_offset(0); | |
274 | show_in_offset(1); | |
275 | show_in_offset(2); | |
276 | show_in_offset(3); | |
277 | show_in_offset(4); | |
278 | ||
279 | /* Temperature */ | |
a5099cfc | 280 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
281 | { |
282 | struct sis5595_data *data = sis5595_update_device(dev); | |
283 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp)); | |
284 | } | |
285 | ||
a5099cfc | 286 | static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
287 | { |
288 | struct sis5595_data *data = sis5595_update_device(dev); | |
289 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over)); | |
290 | } | |
291 | ||
a5099cfc | 292 | static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 293 | { |
17e7dc43 | 294 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
295 | long val = simple_strtol(buf, NULL, 10); |
296 | ||
9a61bf63 | 297 | mutex_lock(&data->update_lock); |
1da177e4 | 298 | data->temp_over = TEMP_TO_REG(val); |
17e7dc43 | 299 | sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over); |
9a61bf63 | 300 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
301 | return count; |
302 | } | |
303 | ||
a5099cfc | 304 | static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
305 | { |
306 | struct sis5595_data *data = sis5595_update_device(dev); | |
307 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst)); | |
308 | } | |
309 | ||
a5099cfc | 310 | static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
1da177e4 | 311 | { |
17e7dc43 | 312 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
313 | long val = simple_strtol(buf, NULL, 10); |
314 | ||
9a61bf63 | 315 | mutex_lock(&data->update_lock); |
1da177e4 | 316 | data->temp_hyst = TEMP_TO_REG(val); |
17e7dc43 | 317 | sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst); |
9a61bf63 | 318 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
319 | return count; |
320 | } | |
321 | ||
322 | static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL); | |
323 | static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, | |
324 | show_temp_over, set_temp_over); | |
325 | static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, | |
326 | show_temp_hyst, set_temp_hyst); | |
327 | ||
328 | /* 2 Fans */ | |
1f5f48dd JD |
329 | static ssize_t show_fan(struct device *dev, struct device_attribute *da, |
330 | char *buf) | |
1da177e4 LT |
331 | { |
332 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
333 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
334 | int nr = attr->index; | |
1da177e4 LT |
335 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
336 | DIV_FROM_REG(data->fan_div[nr])) ); | |
337 | } | |
338 | ||
1f5f48dd JD |
339 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *da, |
340 | char *buf) | |
1da177e4 LT |
341 | { |
342 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
343 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
344 | int nr = attr->index; | |
1da177e4 LT |
345 | return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr], |
346 | DIV_FROM_REG(data->fan_div[nr])) ); | |
347 | } | |
348 | ||
1f5f48dd JD |
349 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *da, |
350 | const char *buf, size_t count) | |
1da177e4 | 351 | { |
17e7dc43 | 352 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
353 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
354 | int nr = attr->index; | |
1da177e4 LT |
355 | unsigned long val = simple_strtoul(buf, NULL, 10); |
356 | ||
9a61bf63 | 357 | mutex_lock(&data->update_lock); |
1da177e4 | 358 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
17e7dc43 | 359 | sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 360 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
361 | return count; |
362 | } | |
363 | ||
1f5f48dd JD |
364 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *da, |
365 | char *buf) | |
1da177e4 LT |
366 | { |
367 | struct sis5595_data *data = sis5595_update_device(dev); | |
1f5f48dd JD |
368 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
369 | int nr = attr->index; | |
1da177e4 LT |
370 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]) ); |
371 | } | |
372 | ||
373 | /* Note: we save and restore the fan minimum here, because its value is | |
374 | determined in part by the fan divisor. This follows the principle of | |
d6e05edc | 375 | least surprise; the user doesn't expect the fan minimum to change just |
1da177e4 | 376 | because the divisor changed. */ |
1f5f48dd JD |
377 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, |
378 | const char *buf, size_t count) | |
1da177e4 | 379 | { |
17e7dc43 | 380 | struct sis5595_data *data = dev_get_drvdata(dev); |
1f5f48dd JD |
381 | struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
382 | int nr = attr->index; | |
1da177e4 LT |
383 | unsigned long min; |
384 | unsigned long val = simple_strtoul(buf, NULL, 10); | |
385 | int reg; | |
386 | ||
9a61bf63 | 387 | mutex_lock(&data->update_lock); |
1da177e4 LT |
388 | min = FAN_FROM_REG(data->fan_min[nr], |
389 | DIV_FROM_REG(data->fan_div[nr])); | |
17e7dc43 | 390 | reg = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4 LT |
391 | |
392 | switch (val) { | |
393 | case 1: data->fan_div[nr] = 0; break; | |
394 | case 2: data->fan_div[nr] = 1; break; | |
395 | case 4: data->fan_div[nr] = 2; break; | |
396 | case 8: data->fan_div[nr] = 3; break; | |
397 | default: | |
17e7dc43 | 398 | dev_err(dev, "fan_div value %ld not " |
1da177e4 | 399 | "supported. Choose one of 1, 2, 4 or 8!\n", val); |
9a61bf63 | 400 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
401 | return -EINVAL; |
402 | } | |
403 | ||
404 | switch (nr) { | |
405 | case 0: | |
406 | reg = (reg & 0xcf) | (data->fan_div[nr] << 4); | |
407 | break; | |
408 | case 1: | |
409 | reg = (reg & 0x3f) | (data->fan_div[nr] << 6); | |
410 | break; | |
411 | } | |
17e7dc43 | 412 | sis5595_write_value(data, SIS5595_REG_FANDIV, reg); |
1da177e4 LT |
413 | data->fan_min[nr] = |
414 | FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); | |
17e7dc43 | 415 | sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); |
9a61bf63 | 416 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
417 | return count; |
418 | } | |
419 | ||
420 | #define show_fan_offset(offset) \ | |
1f5f48dd JD |
421 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
422 | show_fan, NULL, offset - 1); \ | |
423 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ | |
424 | show_fan_min, set_fan_min, offset - 1); \ | |
425 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ | |
426 | show_fan_div, set_fan_div, offset - 1); | |
1da177e4 LT |
427 | |
428 | show_fan_offset(1); | |
429 | show_fan_offset(2); | |
430 | ||
1da177e4 | 431 | /* Alarms */ |
a5099cfc | 432 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
433 | { |
434 | struct sis5595_data *data = sis5595_update_device(dev); | |
435 | return sprintf(buf, "%d\n", data->alarms); | |
436 | } | |
437 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); | |
a5ebe668 | 438 | |
5c726b3b IM |
439 | static ssize_t show_alarm(struct device *dev, struct device_attribute *da, |
440 | char *buf) | |
441 | { | |
442 | struct sis5595_data *data = sis5595_update_device(dev); | |
443 | int nr = to_sensor_dev_attr(da)->index; | |
444 | return sprintf(buf, "%u\n", (data->alarms >> nr) & 1); | |
445 | } | |
446 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); | |
447 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); | |
448 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); | |
449 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); | |
450 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 15); | |
451 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); | |
452 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); | |
453 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 15); | |
454 | ||
17e7dc43 JD |
455 | static ssize_t show_name(struct device *dev, struct device_attribute *attr, |
456 | char *buf) | |
457 | { | |
458 | struct sis5595_data *data = dev_get_drvdata(dev); | |
459 | return sprintf(buf, "%s\n", data->name); | |
460 | } | |
461 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
462 | ||
a5ebe668 | 463 | static struct attribute *sis5595_attributes[] = { |
1f5f48dd JD |
464 | &sensor_dev_attr_in0_input.dev_attr.attr, |
465 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
466 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
5c726b3b | 467 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1f5f48dd JD |
468 | &sensor_dev_attr_in1_input.dev_attr.attr, |
469 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
470 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
5c726b3b | 471 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1f5f48dd JD |
472 | &sensor_dev_attr_in2_input.dev_attr.attr, |
473 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
474 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
5c726b3b | 475 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1f5f48dd JD |
476 | &sensor_dev_attr_in3_input.dev_attr.attr, |
477 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
478 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
5c726b3b | 479 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1f5f48dd JD |
480 | |
481 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
482 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
483 | &sensor_dev_attr_fan1_div.dev_attr.attr, | |
5c726b3b | 484 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1f5f48dd JD |
485 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
486 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
487 | &sensor_dev_attr_fan2_div.dev_attr.attr, | |
5c726b3b | 488 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
a5ebe668 JD |
489 | |
490 | &dev_attr_alarms.attr, | |
17e7dc43 | 491 | &dev_attr_name.attr, |
a5ebe668 JD |
492 | NULL |
493 | }; | |
494 | ||
495 | static const struct attribute_group sis5595_group = { | |
496 | .attrs = sis5595_attributes, | |
497 | }; | |
498 | ||
76e63860 | 499 | static struct attribute *sis5595_attributes_in4[] = { |
1f5f48dd JD |
500 | &sensor_dev_attr_in4_input.dev_attr.attr, |
501 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
502 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
5c726b3b | 503 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
76e63860 IM |
504 | NULL |
505 | }; | |
506 | ||
507 | static const struct attribute_group sis5595_group_in4 = { | |
508 | .attrs = sis5595_attributes_in4, | |
509 | }; | |
a5ebe668 | 510 | |
76e63860 | 511 | static struct attribute *sis5595_attributes_temp1[] = { |
a5ebe668 JD |
512 | &dev_attr_temp1_input.attr, |
513 | &dev_attr_temp1_max.attr, | |
514 | &dev_attr_temp1_max_hyst.attr, | |
5c726b3b | 515 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
a5ebe668 JD |
516 | NULL |
517 | }; | |
518 | ||
76e63860 IM |
519 | static const struct attribute_group sis5595_group_temp1 = { |
520 | .attrs = sis5595_attributes_temp1, | |
a5ebe668 | 521 | }; |
1da177e4 LT |
522 | |
523 | /* This is called when the module is loaded */ | |
17e7dc43 | 524 | static int __devinit sis5595_probe(struct platform_device *pdev) |
1da177e4 LT |
525 | { |
526 | int err = 0; | |
527 | int i; | |
1da177e4 | 528 | struct sis5595_data *data; |
17e7dc43 | 529 | struct resource *res; |
1da177e4 | 530 | char val; |
1da177e4 | 531 | |
1da177e4 | 532 | /* Reserve the ISA region */ |
17e7dc43 JD |
533 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
534 | if (!request_region(res->start, SIS5595_EXTENT, | |
cdaf7934 | 535 | sis5595_driver.driver.name)) { |
1da177e4 LT |
536 | err = -EBUSY; |
537 | goto exit; | |
538 | } | |
1da177e4 | 539 | |
ba9c2e8d | 540 | if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) { |
1da177e4 LT |
541 | err = -ENOMEM; |
542 | goto exit_release; | |
543 | } | |
1da177e4 | 544 | |
9a61bf63 | 545 | mutex_init(&data->lock); |
17e7dc43 JD |
546 | mutex_init(&data->update_lock); |
547 | data->addr = res->start; | |
548 | data->name = "sis5595"; | |
549 | platform_set_drvdata(pdev, data); | |
1da177e4 LT |
550 | |
551 | /* Check revision and pin registers to determine whether 4 or 5 voltages */ | |
7b6d1f04 | 552 | data->revision = s_bridge->revision; |
1da177e4 LT |
553 | /* 4 voltages, 1 temp */ |
554 | data->maxins = 3; | |
555 | if (data->revision >= REV2MIN) { | |
556 | pci_read_config_byte(s_bridge, SIS5595_PIN_REG, &val); | |
557 | if (!(val & 0x80)) | |
558 | /* 5 voltages, no temps */ | |
559 | data->maxins = 4; | |
560 | } | |
561 | ||
1da177e4 | 562 | /* Initialize the SIS5595 chip */ |
17e7dc43 | 563 | sis5595_init_device(data); |
1da177e4 LT |
564 | |
565 | /* A few vars need to be filled upon startup */ | |
566 | for (i = 0; i < 2; i++) { | |
17e7dc43 | 567 | data->fan_min[i] = sis5595_read_value(data, |
1da177e4 LT |
568 | SIS5595_REG_FAN_MIN(i)); |
569 | } | |
570 | ||
571 | /* Register sysfs hooks */ | |
17e7dc43 JD |
572 | if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group))) |
573 | goto exit_free; | |
a5ebe668 | 574 | if (data->maxins == 4) { |
76e63860 IM |
575 | if ((err = sysfs_create_group(&pdev->dev.kobj, |
576 | &sis5595_group_in4))) | |
a5ebe668 JD |
577 | goto exit_remove_files; |
578 | } else { | |
76e63860 IM |
579 | if ((err = sysfs_create_group(&pdev->dev.kobj, |
580 | &sis5595_group_temp1))) | |
a5ebe668 JD |
581 | goto exit_remove_files; |
582 | } | |
583 | ||
1beeffe4 TJ |
584 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
585 | if (IS_ERR(data->hwmon_dev)) { | |
586 | err = PTR_ERR(data->hwmon_dev); | |
a5ebe668 | 587 | goto exit_remove_files; |
943b0830 MH |
588 | } |
589 | ||
1da177e4 | 590 | return 0; |
943b0830 | 591 | |
a5ebe668 | 592 | exit_remove_files: |
17e7dc43 | 593 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860 IM |
594 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); |
595 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); | |
1da177e4 LT |
596 | exit_free: |
597 | kfree(data); | |
598 | exit_release: | |
17e7dc43 | 599 | release_region(res->start, SIS5595_EXTENT); |
1da177e4 LT |
600 | exit: |
601 | return err; | |
602 | } | |
603 | ||
17e7dc43 | 604 | static int __devexit sis5595_remove(struct platform_device *pdev) |
1da177e4 | 605 | { |
17e7dc43 | 606 | struct sis5595_data *data = platform_get_drvdata(pdev); |
1da177e4 | 607 | |
1beeffe4 | 608 | hwmon_device_unregister(data->hwmon_dev); |
17e7dc43 | 609 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); |
76e63860 IM |
610 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_in4); |
611 | sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_temp1); | |
1da177e4 | 612 | |
17e7dc43 JD |
613 | release_region(data->addr, SIS5595_EXTENT); |
614 | platform_set_drvdata(pdev, NULL); | |
943b0830 | 615 | kfree(data); |
1da177e4 LT |
616 | |
617 | return 0; | |
618 | } | |
619 | ||
620 | ||
621 | /* ISA access must be locked explicitly. */ | |
17e7dc43 | 622 | static int sis5595_read_value(struct sis5595_data *data, u8 reg) |
1da177e4 LT |
623 | { |
624 | int res; | |
625 | ||
9a61bf63 | 626 | mutex_lock(&data->lock); |
17e7dc43 JD |
627 | outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); |
628 | res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET); | |
9a61bf63 | 629 | mutex_unlock(&data->lock); |
1da177e4 LT |
630 | return res; |
631 | } | |
632 | ||
17e7dc43 | 633 | static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) |
1da177e4 | 634 | { |
9a61bf63 | 635 | mutex_lock(&data->lock); |
17e7dc43 JD |
636 | outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); |
637 | outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET); | |
9a61bf63 | 638 | mutex_unlock(&data->lock); |
1da177e4 LT |
639 | } |
640 | ||
641 | /* Called when we have found a new SIS5595. */ | |
17e7dc43 | 642 | static void __devinit sis5595_init_device(struct sis5595_data *data) |
1da177e4 | 643 | { |
17e7dc43 | 644 | u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG); |
1da177e4 | 645 | if (!(config & 0x01)) |
17e7dc43 | 646 | sis5595_write_value(data, SIS5595_REG_CONFIG, |
1da177e4 LT |
647 | (config & 0xf7) | 0x01); |
648 | } | |
649 | ||
650 | static struct sis5595_data *sis5595_update_device(struct device *dev) | |
651 | { | |
17e7dc43 | 652 | struct sis5595_data *data = dev_get_drvdata(dev); |
1da177e4 LT |
653 | int i; |
654 | ||
9a61bf63 | 655 | mutex_lock(&data->update_lock); |
1da177e4 LT |
656 | |
657 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) | |
658 | || !data->valid) { | |
659 | ||
660 | for (i = 0; i <= data->maxins; i++) { | |
661 | data->in[i] = | |
17e7dc43 | 662 | sis5595_read_value(data, SIS5595_REG_IN(i)); |
1da177e4 | 663 | data->in_min[i] = |
17e7dc43 | 664 | sis5595_read_value(data, |
1da177e4 LT |
665 | SIS5595_REG_IN_MIN(i)); |
666 | data->in_max[i] = | |
17e7dc43 | 667 | sis5595_read_value(data, |
1da177e4 LT |
668 | SIS5595_REG_IN_MAX(i)); |
669 | } | |
670 | for (i = 0; i < 2; i++) { | |
671 | data->fan[i] = | |
17e7dc43 | 672 | sis5595_read_value(data, SIS5595_REG_FAN(i)); |
1da177e4 | 673 | data->fan_min[i] = |
17e7dc43 | 674 | sis5595_read_value(data, |
1da177e4 LT |
675 | SIS5595_REG_FAN_MIN(i)); |
676 | } | |
677 | if (data->maxins == 3) { | |
678 | data->temp = | |
17e7dc43 | 679 | sis5595_read_value(data, SIS5595_REG_TEMP); |
1da177e4 | 680 | data->temp_over = |
17e7dc43 | 681 | sis5595_read_value(data, SIS5595_REG_TEMP_OVER); |
1da177e4 | 682 | data->temp_hyst = |
17e7dc43 | 683 | sis5595_read_value(data, SIS5595_REG_TEMP_HYST); |
1da177e4 | 684 | } |
17e7dc43 | 685 | i = sis5595_read_value(data, SIS5595_REG_FANDIV); |
1da177e4 LT |
686 | data->fan_div[0] = (i >> 4) & 0x03; |
687 | data->fan_div[1] = i >> 6; | |
688 | data->alarms = | |
17e7dc43 JD |
689 | sis5595_read_value(data, SIS5595_REG_ALARM1) | |
690 | (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8); | |
1da177e4 LT |
691 | data->last_updated = jiffies; |
692 | data->valid = 1; | |
693 | } | |
694 | ||
9a61bf63 | 695 | mutex_unlock(&data->update_lock); |
1da177e4 LT |
696 | |
697 | return data; | |
698 | } | |
699 | ||
700 | static struct pci_device_id sis5595_pci_ids[] = { | |
701 | { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, | |
702 | { 0, } | |
703 | }; | |
704 | ||
705 | MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); | |
706 | ||
707 | static int blacklist[] __devinitdata = { | |
708 | PCI_DEVICE_ID_SI_540, | |
709 | PCI_DEVICE_ID_SI_550, | |
710 | PCI_DEVICE_ID_SI_630, | |
711 | PCI_DEVICE_ID_SI_645, | |
712 | PCI_DEVICE_ID_SI_730, | |
713 | PCI_DEVICE_ID_SI_735, | |
714 | PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but | |
715 | that ID shows up in other chips so we | |
716 | use the 5511 ID for recognition */ | |
717 | PCI_DEVICE_ID_SI_5597, | |
718 | PCI_DEVICE_ID_SI_5598, | |
719 | 0 }; | |
720 | ||
17e7dc43 JD |
721 | static int __devinit sis5595_device_add(unsigned short address) |
722 | { | |
723 | struct resource res = { | |
724 | .start = address, | |
725 | .end = address + SIS5595_EXTENT - 1, | |
726 | .name = "sis5595", | |
727 | .flags = IORESOURCE_IO, | |
728 | }; | |
729 | int err; | |
730 | ||
b9acb64a JD |
731 | err = acpi_check_resource_conflict(&res); |
732 | if (err) | |
733 | goto exit; | |
734 | ||
17e7dc43 JD |
735 | pdev = platform_device_alloc("sis5595", address); |
736 | if (!pdev) { | |
737 | err = -ENOMEM; | |
738 | printk(KERN_ERR "sis5595: Device allocation failed\n"); | |
739 | goto exit; | |
740 | } | |
741 | ||
742 | err = platform_device_add_resources(pdev, &res, 1); | |
743 | if (err) { | |
744 | printk(KERN_ERR "sis5595: Device resource addition failed " | |
745 | "(%d)\n", err); | |
746 | goto exit_device_put; | |
747 | } | |
748 | ||
749 | err = platform_device_add(pdev); | |
750 | if (err) { | |
751 | printk(KERN_ERR "sis5595: Device addition failed (%d)\n", | |
752 | err); | |
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); |