Commit | Line | Data |
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ba224e2c JD |
1 | /* |
2 | * pc87427.c - hardware monitoring driver for the | |
3 | * National Semiconductor PC87427 Super-I/O chip | |
008e5f33 | 4 | * Copyright (C) 2006, 2008, 2010 Jean Delvare <khali@linux-fr.org> |
ba224e2c JD |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * Supports the following chips: | |
16 | * | |
17 | * Chip #vin #fan #pwm #temp devid | |
008e5f33 | 18 | * PC87427 - 8 4 6 0xF2 |
ba224e2c JD |
19 | * |
20 | * This driver assumes that no more than one chip is present. | |
008e5f33 JD |
21 | * Only fans are fully supported so far. Temperatures are in read-only |
22 | * mode, and voltages aren't supported at all. | |
ba224e2c JD |
23 | */ |
24 | ||
5e24e0c3 JP |
25 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
26 | ||
ba224e2c JD |
27 | #include <linux/module.h> |
28 | #include <linux/init.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/jiffies.h> | |
31 | #include <linux/platform_device.h> | |
32 | #include <linux/hwmon.h> | |
33 | #include <linux/hwmon-sysfs.h> | |
34 | #include <linux/err.h> | |
35 | #include <linux/mutex.h> | |
36 | #include <linux/sysfs.h> | |
ce7ee4e8 | 37 | #include <linux/ioport.h> |
b9acb64a | 38 | #include <linux/acpi.h> |
6055fae8 | 39 | #include <linux/io.h> |
ba224e2c | 40 | |
67b671bc JD |
41 | static unsigned short force_id; |
42 | module_param(force_id, ushort, 0); | |
43 | MODULE_PARM_DESC(force_id, "Override the detected device ID"); | |
44 | ||
ba224e2c JD |
45 | static struct platform_device *pdev; |
46 | ||
47 | #define DRVNAME "pc87427" | |
48 | ||
49 | /* The lock mutex protects both the I/O accesses (needed because the | |
50 | device is using banked registers) and the register cache (needed to keep | |
51 | the data in the registers and the cache in sync at any time). */ | |
52 | struct pc87427_data { | |
1beeffe4 | 53 | struct device *hwmon_dev; |
ba224e2c JD |
54 | struct mutex lock; |
55 | int address[2]; | |
56 | const char *name; | |
57 | ||
58 | unsigned long last_updated; /* in jiffies */ | |
59 | u8 fan_enabled; /* bit vector */ | |
60 | u16 fan[8]; /* register values */ | |
61 | u16 fan_min[8]; /* register values */ | |
62 | u8 fan_status[8]; /* register values */ | |
328716bc JD |
63 | |
64 | u8 pwm_enabled; /* bit vector */ | |
65 | u8 pwm_auto_ok; /* bit vector */ | |
66 | u8 pwm_enable[4]; /* register values */ | |
67 | u8 pwm[4]; /* register values */ | |
008e5f33 JD |
68 | |
69 | u8 temp_enabled; /* bit vector */ | |
70 | s16 temp[6]; /* register values */ | |
71 | s8 temp_min[6]; /* register values */ | |
72 | s8 temp_max[6]; /* register values */ | |
73 | s8 temp_crit[6]; /* register values */ | |
74 | u8 temp_status[6]; /* register values */ | |
75 | u8 temp_type[6]; /* register values */ | |
ba224e2c JD |
76 | }; |
77 | ||
4e7d99e1 | 78 | struct pc87427_sio_data { |
9d32df19 | 79 | unsigned short address[2]; |
4e7d99e1 | 80 | u8 has_fanin; |
328716bc | 81 | u8 has_fanout; |
4e7d99e1 JD |
82 | }; |
83 | ||
ba224e2c JD |
84 | /* |
85 | * Super-I/O registers and operations | |
86 | */ | |
87 | ||
88 | #define SIOREG_LDSEL 0x07 /* Logical device select */ | |
89 | #define SIOREG_DEVID 0x20 /* Device ID */ | |
4e7d99e1 JD |
90 | #define SIOREG_CF2 0x22 /* Configuration 2 */ |
91 | #define SIOREG_CF3 0x23 /* Configuration 3 */ | |
92 | #define SIOREG_CF4 0x24 /* Configuration 4 */ | |
328716bc | 93 | #define SIOREG_CF5 0x25 /* Configuration 5 */ |
4e7d99e1 | 94 | #define SIOREG_CFB 0x2B /* Configuration B */ |
328716bc | 95 | #define SIOREG_CFC 0x2C /* Configuration C */ |
4e7d99e1 | 96 | #define SIOREG_CFD 0x2D /* Configuration D */ |
ba224e2c JD |
97 | #define SIOREG_ACT 0x30 /* Device activation */ |
98 | #define SIOREG_MAP 0x50 /* I/O or memory mapping */ | |
99 | #define SIOREG_IOBASE 0x60 /* I/O base address */ | |
100 | ||
101 | static const u8 logdev[2] = { 0x09, 0x14 }; | |
102 | static const char *logdev_str[2] = { DRVNAME " FMC", DRVNAME " HMC" }; | |
103 | #define LD_FAN 0 | |
104 | #define LD_IN 1 | |
105 | #define LD_TEMP 1 | |
106 | ||
107 | static inline void superio_outb(int sioaddr, int reg, int val) | |
108 | { | |
109 | outb(reg, sioaddr); | |
110 | outb(val, sioaddr + 1); | |
111 | } | |
112 | ||
113 | static inline int superio_inb(int sioaddr, int reg) | |
114 | { | |
115 | outb(reg, sioaddr); | |
116 | return inb(sioaddr + 1); | |
117 | } | |
118 | ||
119 | static inline void superio_exit(int sioaddr) | |
120 | { | |
121 | outb(0x02, sioaddr); | |
122 | outb(0x02, sioaddr + 1); | |
123 | } | |
124 | ||
125 | /* | |
126 | * Logical devices | |
127 | */ | |
128 | ||
129 | #define REGION_LENGTH 32 | |
130 | #define PC87427_REG_BANK 0x0f | |
131 | #define BANK_FM(nr) (nr) | |
132 | #define BANK_FT(nr) (0x08 + (nr)) | |
133 | #define BANK_FC(nr) (0x10 + (nr) * 2) | |
008e5f33 JD |
134 | #define BANK_TM(nr) (nr) |
135 | #define BANK_VM(nr) (0x08 + (nr)) | |
ba224e2c JD |
136 | |
137 | /* | |
138 | * I/O access functions | |
139 | */ | |
140 | ||
141 | /* ldi is the logical device index */ | |
142 | static inline int pc87427_read8(struct pc87427_data *data, u8 ldi, u8 reg) | |
143 | { | |
144 | return inb(data->address[ldi] + reg); | |
145 | } | |
146 | ||
147 | /* Must be called with data->lock held, except during init */ | |
148 | static inline int pc87427_read8_bank(struct pc87427_data *data, u8 ldi, | |
149 | u8 bank, u8 reg) | |
150 | { | |
151 | outb(bank, data->address[ldi] + PC87427_REG_BANK); | |
152 | return inb(data->address[ldi] + reg); | |
153 | } | |
154 | ||
155 | /* Must be called with data->lock held, except during init */ | |
156 | static inline void pc87427_write8_bank(struct pc87427_data *data, u8 ldi, | |
157 | u8 bank, u8 reg, u8 value) | |
158 | { | |
159 | outb(bank, data->address[ldi] + PC87427_REG_BANK); | |
160 | outb(value, data->address[ldi] + reg); | |
161 | } | |
162 | ||
163 | /* | |
164 | * Fan registers and conversions | |
165 | */ | |
166 | ||
167 | /* fan data registers are 16-bit wide */ | |
168 | #define PC87427_REG_FAN 0x12 | |
169 | #define PC87427_REG_FAN_MIN 0x14 | |
170 | #define PC87427_REG_FAN_STATUS 0x10 | |
171 | ||
172 | #define FAN_STATUS_STALL (1 << 3) | |
173 | #define FAN_STATUS_LOSPD (1 << 1) | |
174 | #define FAN_STATUS_MONEN (1 << 0) | |
175 | ||
176 | /* Dedicated function to read all registers related to a given fan input. | |
177 | This saves us quite a few locks and bank selections. | |
178 | Must be called with data->lock held. | |
179 | nr is from 0 to 7 */ | |
180 | static void pc87427_readall_fan(struct pc87427_data *data, u8 nr) | |
181 | { | |
182 | int iobase = data->address[LD_FAN]; | |
183 | ||
184 | outb(BANK_FM(nr), iobase + PC87427_REG_BANK); | |
185 | data->fan[nr] = inw(iobase + PC87427_REG_FAN); | |
186 | data->fan_min[nr] = inw(iobase + PC87427_REG_FAN_MIN); | |
187 | data->fan_status[nr] = inb(iobase + PC87427_REG_FAN_STATUS); | |
188 | /* Clear fan alarm bits */ | |
189 | outb(data->fan_status[nr], iobase + PC87427_REG_FAN_STATUS); | |
190 | } | |
191 | ||
192 | /* The 2 LSB of fan speed registers are used for something different. | |
193 | The actual 2 LSB of the measurements are not available. */ | |
194 | static inline unsigned long fan_from_reg(u16 reg) | |
195 | { | |
196 | reg &= 0xfffc; | |
197 | if (reg == 0x0000 || reg == 0xfffc) | |
198 | return 0; | |
199 | return 5400000UL / reg; | |
200 | } | |
201 | ||
202 | /* The 2 LSB of the fan speed limit registers are not significant. */ | |
203 | static inline u16 fan_to_reg(unsigned long val) | |
204 | { | |
205 | if (val < 83UL) | |
206 | return 0xffff; | |
207 | if (val >= 1350000UL) | |
208 | return 0x0004; | |
209 | return ((1350000UL + val / 2) / val) << 2; | |
210 | } | |
211 | ||
328716bc JD |
212 | /* |
213 | * PWM registers and conversions | |
214 | */ | |
215 | ||
216 | #define PC87427_REG_PWM_ENABLE 0x10 | |
217 | #define PC87427_REG_PWM_DUTY 0x12 | |
218 | ||
219 | #define PWM_ENABLE_MODE_MASK (7 << 4) | |
220 | #define PWM_ENABLE_CTLEN (1 << 0) | |
221 | ||
222 | #define PWM_MODE_MANUAL (0 << 4) | |
223 | #define PWM_MODE_AUTO (1 << 4) | |
224 | #define PWM_MODE_OFF (2 << 4) | |
225 | #define PWM_MODE_ON (7 << 4) | |
226 | ||
227 | /* Dedicated function to read all registers related to a given PWM output. | |
228 | This saves us quite a few locks and bank selections. | |
229 | Must be called with data->lock held. | |
230 | nr is from 0 to 3 */ | |
231 | static void pc87427_readall_pwm(struct pc87427_data *data, u8 nr) | |
232 | { | |
233 | int iobase = data->address[LD_FAN]; | |
234 | ||
235 | outb(BANK_FC(nr), iobase + PC87427_REG_BANK); | |
236 | data->pwm_enable[nr] = inb(iobase + PC87427_REG_PWM_ENABLE); | |
237 | data->pwm[nr] = inb(iobase + PC87427_REG_PWM_DUTY); | |
238 | } | |
239 | ||
240 | static inline int pwm_enable_from_reg(u8 reg) | |
241 | { | |
242 | switch (reg & PWM_ENABLE_MODE_MASK) { | |
243 | case PWM_MODE_ON: | |
244 | return 0; | |
245 | case PWM_MODE_MANUAL: | |
246 | case PWM_MODE_OFF: | |
247 | return 1; | |
248 | case PWM_MODE_AUTO: | |
249 | return 2; | |
250 | default: | |
251 | return -EPROTO; | |
252 | } | |
253 | } | |
254 | ||
255 | static inline u8 pwm_enable_to_reg(unsigned long val, u8 pwmval) | |
256 | { | |
257 | switch (val) { | |
258 | default: | |
259 | return PWM_MODE_ON; | |
260 | case 1: | |
261 | return pwmval ? PWM_MODE_MANUAL : PWM_MODE_OFF; | |
262 | case 2: | |
263 | return PWM_MODE_AUTO; | |
264 | } | |
265 | } | |
266 | ||
008e5f33 JD |
267 | /* |
268 | * Temperature registers and conversions | |
269 | */ | |
270 | ||
271 | #define PC87427_REG_TEMP_STATUS 0x10 | |
272 | #define PC87427_REG_TEMP 0x14 | |
273 | #define PC87427_REG_TEMP_MAX 0x18 | |
274 | #define PC87427_REG_TEMP_MIN 0x19 | |
275 | #define PC87427_REG_TEMP_CRIT 0x1a | |
276 | #define PC87427_REG_TEMP_TYPE 0x1d | |
277 | ||
278 | #define TEMP_STATUS_CHANEN (1 << 0) | |
279 | #define TEMP_STATUS_LOWFLG (1 << 1) | |
280 | #define TEMP_STATUS_HIGHFLG (1 << 2) | |
281 | #define TEMP_STATUS_CRITFLG (1 << 3) | |
282 | #define TEMP_STATUS_SENSERR (1 << 5) | |
283 | #define TEMP_TYPE_MASK (3 << 5) | |
284 | ||
285 | #define TEMP_TYPE_THERMISTOR (1 << 5) | |
286 | #define TEMP_TYPE_REMOTE_DIODE (2 << 5) | |
287 | #define TEMP_TYPE_LOCAL_DIODE (3 << 5) | |
288 | ||
289 | /* Dedicated function to read all registers related to a given temperature | |
290 | input. This saves us quite a few locks and bank selections. | |
291 | Must be called with data->lock held. | |
292 | nr is from 0 to 5 */ | |
293 | static void pc87427_readall_temp(struct pc87427_data *data, u8 nr) | |
294 | { | |
295 | int iobase = data->address[LD_TEMP]; | |
296 | ||
297 | outb(BANK_TM(nr), iobase + PC87427_REG_BANK); | |
298 | data->temp[nr] = le16_to_cpu(inw(iobase + PC87427_REG_TEMP)); | |
299 | data->temp_max[nr] = inb(iobase + PC87427_REG_TEMP_MAX); | |
300 | data->temp_min[nr] = inb(iobase + PC87427_REG_TEMP_MIN); | |
301 | data->temp_crit[nr] = inb(iobase + PC87427_REG_TEMP_CRIT); | |
302 | data->temp_type[nr] = inb(iobase + PC87427_REG_TEMP_TYPE); | |
303 | data->temp_status[nr] = inb(iobase + PC87427_REG_TEMP_STATUS); | |
304 | /* Clear fan alarm bits */ | |
305 | outb(data->temp_status[nr], iobase + PC87427_REG_TEMP_STATUS); | |
306 | } | |
307 | ||
308 | static inline unsigned int temp_type_from_reg(u8 reg) | |
309 | { | |
310 | switch (reg & TEMP_TYPE_MASK) { | |
311 | case TEMP_TYPE_THERMISTOR: | |
312 | return 4; | |
313 | case TEMP_TYPE_REMOTE_DIODE: | |
314 | case TEMP_TYPE_LOCAL_DIODE: | |
315 | return 3; | |
316 | default: | |
317 | return 0; | |
318 | } | |
319 | } | |
320 | ||
321 | /* We assume 8-bit thermal sensors; 9-bit thermal sensors are possible | |
322 | too, but I have no idea how to figure out when they are used. */ | |
323 | static inline long temp_from_reg(s16 reg) | |
324 | { | |
325 | return reg * 1000 / 256; | |
326 | } | |
327 | ||
328 | static inline long temp_from_reg8(s8 reg) | |
329 | { | |
330 | return reg * 1000; | |
331 | } | |
332 | ||
ba224e2c JD |
333 | /* |
334 | * Data interface | |
335 | */ | |
336 | ||
337 | static struct pc87427_data *pc87427_update_device(struct device *dev) | |
338 | { | |
339 | struct pc87427_data *data = dev_get_drvdata(dev); | |
340 | int i; | |
341 | ||
342 | mutex_lock(&data->lock); | |
343 | if (!time_after(jiffies, data->last_updated + HZ) | |
344 | && data->last_updated) | |
345 | goto done; | |
346 | ||
347 | /* Fans */ | |
348 | for (i = 0; i < 8; i++) { | |
349 | if (!(data->fan_enabled & (1 << i))) | |
350 | continue; | |
351 | pc87427_readall_fan(data, i); | |
352 | } | |
328716bc JD |
353 | |
354 | /* PWM outputs */ | |
355 | for (i = 0; i < 4; i++) { | |
356 | if (!(data->pwm_enabled & (1 << i))) | |
357 | continue; | |
358 | pc87427_readall_pwm(data, i); | |
359 | } | |
360 | ||
008e5f33 JD |
361 | /* Temperature channels */ |
362 | for (i = 0; i < 6; i++) { | |
363 | if (!(data->temp_enabled & (1 << i))) | |
364 | continue; | |
365 | pc87427_readall_temp(data, i); | |
366 | } | |
367 | ||
ba224e2c JD |
368 | data->last_updated = jiffies; |
369 | ||
370 | done: | |
371 | mutex_unlock(&data->lock); | |
372 | return data; | |
373 | } | |
374 | ||
375 | static ssize_t show_fan_input(struct device *dev, struct device_attribute | |
376 | *devattr, char *buf) | |
377 | { | |
ba224e2c | 378 | struct pc87427_data *data = pc87427_update_device(dev); |
0d22d583 | 379 | int nr = to_sensor_dev_attr(devattr)->index; |
ba224e2c JD |
380 | |
381 | return sprintf(buf, "%lu\n", fan_from_reg(data->fan[nr])); | |
382 | } | |
383 | ||
384 | static ssize_t show_fan_min(struct device *dev, struct device_attribute | |
385 | *devattr, char *buf) | |
386 | { | |
ba224e2c | 387 | struct pc87427_data *data = pc87427_update_device(dev); |
0d22d583 | 388 | int nr = to_sensor_dev_attr(devattr)->index; |
ba224e2c JD |
389 | |
390 | return sprintf(buf, "%lu\n", fan_from_reg(data->fan_min[nr])); | |
391 | } | |
392 | ||
393 | static ssize_t show_fan_alarm(struct device *dev, struct device_attribute | |
394 | *devattr, char *buf) | |
395 | { | |
ba224e2c | 396 | struct pc87427_data *data = pc87427_update_device(dev); |
0d22d583 | 397 | int nr = to_sensor_dev_attr(devattr)->index; |
ba224e2c JD |
398 | |
399 | return sprintf(buf, "%d\n", !!(data->fan_status[nr] | |
400 | & FAN_STATUS_LOSPD)); | |
401 | } | |
402 | ||
403 | static ssize_t show_fan_fault(struct device *dev, struct device_attribute | |
404 | *devattr, char *buf) | |
405 | { | |
ba224e2c | 406 | struct pc87427_data *data = pc87427_update_device(dev); |
0d22d583 | 407 | int nr = to_sensor_dev_attr(devattr)->index; |
ba224e2c JD |
408 | |
409 | return sprintf(buf, "%d\n", !!(data->fan_status[nr] | |
410 | & FAN_STATUS_STALL)); | |
411 | } | |
412 | ||
413 | static ssize_t set_fan_min(struct device *dev, struct device_attribute | |
414 | *devattr, const char *buf, size_t count) | |
415 | { | |
416 | struct pc87427_data *data = dev_get_drvdata(dev); | |
0d22d583 JD |
417 | int nr = to_sensor_dev_attr(devattr)->index; |
418 | unsigned long val; | |
ba224e2c JD |
419 | int iobase = data->address[LD_FAN]; |
420 | ||
0d22d583 JD |
421 | if (strict_strtoul(buf, 10, &val) < 0) |
422 | return -EINVAL; | |
423 | ||
ba224e2c JD |
424 | mutex_lock(&data->lock); |
425 | outb(BANK_FM(nr), iobase + PC87427_REG_BANK); | |
426 | /* The low speed limit registers are read-only while monitoring | |
427 | is enabled, so we have to disable monitoring, then change the | |
428 | limit, and finally enable monitoring again. */ | |
429 | outb(0, iobase + PC87427_REG_FAN_STATUS); | |
430 | data->fan_min[nr] = fan_to_reg(val); | |
431 | outw(data->fan_min[nr], iobase + PC87427_REG_FAN_MIN); | |
432 | outb(FAN_STATUS_MONEN, iobase + PC87427_REG_FAN_STATUS); | |
433 | mutex_unlock(&data->lock); | |
434 | ||
435 | return count; | |
436 | } | |
437 | ||
438 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0); | |
439 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1); | |
440 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2); | |
441 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3); | |
442 | static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan_input, NULL, 4); | |
443 | static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan_input, NULL, 5); | |
444 | static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan_input, NULL, 6); | |
445 | static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan_input, NULL, 7); | |
446 | ||
447 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, | |
448 | show_fan_min, set_fan_min, 0); | |
449 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, | |
450 | show_fan_min, set_fan_min, 1); | |
451 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, | |
452 | show_fan_min, set_fan_min, 2); | |
453 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, | |
454 | show_fan_min, set_fan_min, 3); | |
455 | static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO, | |
456 | show_fan_min, set_fan_min, 4); | |
457 | static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO, | |
458 | show_fan_min, set_fan_min, 5); | |
459 | static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO, | |
460 | show_fan_min, set_fan_min, 6); | |
461 | static SENSOR_DEVICE_ATTR(fan8_min, S_IWUSR | S_IRUGO, | |
462 | show_fan_min, set_fan_min, 7); | |
463 | ||
464 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0); | |
465 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1); | |
466 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2); | |
467 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3); | |
468 | static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_fan_alarm, NULL, 4); | |
469 | static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_fan_alarm, NULL, 5); | |
470 | static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_fan_alarm, NULL, 6); | |
471 | static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_fan_alarm, NULL, 7); | |
472 | ||
473 | static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault, NULL, 0); | |
474 | static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_fan_fault, NULL, 1); | |
475 | static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, show_fan_fault, NULL, 2); | |
476 | static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, show_fan_fault, NULL, 3); | |
477 | static SENSOR_DEVICE_ATTR(fan5_fault, S_IRUGO, show_fan_fault, NULL, 4); | |
478 | static SENSOR_DEVICE_ATTR(fan6_fault, S_IRUGO, show_fan_fault, NULL, 5); | |
479 | static SENSOR_DEVICE_ATTR(fan7_fault, S_IRUGO, show_fan_fault, NULL, 6); | |
480 | static SENSOR_DEVICE_ATTR(fan8_fault, S_IRUGO, show_fan_fault, NULL, 7); | |
481 | ||
482 | static struct attribute *pc87427_attributes_fan[8][5] = { | |
483 | { | |
484 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
485 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
486 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
487 | &sensor_dev_attr_fan1_fault.dev_attr.attr, | |
488 | NULL | |
489 | }, { | |
490 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
491 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
492 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
493 | &sensor_dev_attr_fan2_fault.dev_attr.attr, | |
494 | NULL | |
495 | }, { | |
496 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
497 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
498 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
499 | &sensor_dev_attr_fan3_fault.dev_attr.attr, | |
500 | NULL | |
501 | }, { | |
502 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
503 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
504 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
505 | &sensor_dev_attr_fan4_fault.dev_attr.attr, | |
506 | NULL | |
507 | }, { | |
508 | &sensor_dev_attr_fan5_input.dev_attr.attr, | |
509 | &sensor_dev_attr_fan5_min.dev_attr.attr, | |
510 | &sensor_dev_attr_fan5_alarm.dev_attr.attr, | |
511 | &sensor_dev_attr_fan5_fault.dev_attr.attr, | |
512 | NULL | |
513 | }, { | |
514 | &sensor_dev_attr_fan6_input.dev_attr.attr, | |
515 | &sensor_dev_attr_fan6_min.dev_attr.attr, | |
516 | &sensor_dev_attr_fan6_alarm.dev_attr.attr, | |
517 | &sensor_dev_attr_fan6_fault.dev_attr.attr, | |
518 | NULL | |
519 | }, { | |
520 | &sensor_dev_attr_fan7_input.dev_attr.attr, | |
521 | &sensor_dev_attr_fan7_min.dev_attr.attr, | |
522 | &sensor_dev_attr_fan7_alarm.dev_attr.attr, | |
523 | &sensor_dev_attr_fan7_fault.dev_attr.attr, | |
524 | NULL | |
525 | }, { | |
526 | &sensor_dev_attr_fan8_input.dev_attr.attr, | |
527 | &sensor_dev_attr_fan8_min.dev_attr.attr, | |
528 | &sensor_dev_attr_fan8_alarm.dev_attr.attr, | |
529 | &sensor_dev_attr_fan8_fault.dev_attr.attr, | |
530 | NULL | |
531 | } | |
532 | }; | |
533 | ||
534 | static const struct attribute_group pc87427_group_fan[8] = { | |
535 | { .attrs = pc87427_attributes_fan[0] }, | |
536 | { .attrs = pc87427_attributes_fan[1] }, | |
537 | { .attrs = pc87427_attributes_fan[2] }, | |
538 | { .attrs = pc87427_attributes_fan[3] }, | |
539 | { .attrs = pc87427_attributes_fan[4] }, | |
540 | { .attrs = pc87427_attributes_fan[5] }, | |
541 | { .attrs = pc87427_attributes_fan[6] }, | |
542 | { .attrs = pc87427_attributes_fan[7] }, | |
543 | }; | |
544 | ||
328716bc JD |
545 | /* Must be called with data->lock held and pc87427_readall_pwm() freshly |
546 | called */ | |
547 | static void update_pwm_enable(struct pc87427_data *data, int nr, u8 mode) | |
548 | { | |
549 | int iobase = data->address[LD_FAN]; | |
550 | data->pwm_enable[nr] &= ~PWM_ENABLE_MODE_MASK; | |
551 | data->pwm_enable[nr] |= mode; | |
552 | outb(data->pwm_enable[nr], iobase + PC87427_REG_PWM_ENABLE); | |
553 | } | |
554 | ||
555 | static ssize_t show_pwm_enable(struct device *dev, struct device_attribute | |
556 | *devattr, char *buf) | |
557 | { | |
558 | struct pc87427_data *data = pc87427_update_device(dev); | |
559 | int nr = to_sensor_dev_attr(devattr)->index; | |
560 | int pwm_enable; | |
561 | ||
562 | pwm_enable = pwm_enable_from_reg(data->pwm_enable[nr]); | |
563 | if (pwm_enable < 0) | |
564 | return pwm_enable; | |
565 | return sprintf(buf, "%d\n", pwm_enable); | |
566 | } | |
567 | ||
568 | static ssize_t set_pwm_enable(struct device *dev, struct device_attribute | |
569 | *devattr, const char *buf, size_t count) | |
570 | { | |
571 | struct pc87427_data *data = dev_get_drvdata(dev); | |
572 | int nr = to_sensor_dev_attr(devattr)->index; | |
573 | unsigned long val; | |
574 | ||
575 | if (strict_strtoul(buf, 10, &val) < 0 || val > 2) | |
576 | return -EINVAL; | |
577 | /* Can't go to automatic mode if it isn't configured */ | |
578 | if (val == 2 && !(data->pwm_auto_ok & (1 << nr))) | |
579 | return -EINVAL; | |
580 | ||
581 | mutex_lock(&data->lock); | |
582 | pc87427_readall_pwm(data, nr); | |
583 | update_pwm_enable(data, nr, pwm_enable_to_reg(val, data->pwm[nr])); | |
584 | mutex_unlock(&data->lock); | |
585 | ||
586 | return count; | |
587 | } | |
588 | ||
589 | static ssize_t show_pwm(struct device *dev, struct device_attribute | |
590 | *devattr, char *buf) | |
591 | { | |
592 | struct pc87427_data *data = pc87427_update_device(dev); | |
593 | int nr = to_sensor_dev_attr(devattr)->index; | |
594 | ||
595 | return sprintf(buf, "%d\n", (int)data->pwm[nr]); | |
596 | } | |
597 | ||
598 | static ssize_t set_pwm(struct device *dev, struct device_attribute | |
599 | *devattr, const char *buf, size_t count) | |
600 | { | |
601 | struct pc87427_data *data = dev_get_drvdata(dev); | |
602 | int nr = to_sensor_dev_attr(devattr)->index; | |
603 | unsigned long val; | |
604 | int iobase = data->address[LD_FAN]; | |
605 | u8 mode; | |
606 | ||
607 | if (strict_strtoul(buf, 10, &val) < 0 || val > 0xff) | |
608 | return -EINVAL; | |
609 | ||
610 | mutex_lock(&data->lock); | |
611 | pc87427_readall_pwm(data, nr); | |
612 | mode = data->pwm_enable[nr] & PWM_ENABLE_MODE_MASK; | |
613 | if (mode != PWM_MODE_MANUAL && mode != PWM_MODE_OFF) { | |
614 | dev_notice(dev, "Can't set PWM%d duty cycle while not in " | |
615 | "manual mode\n", nr + 1); | |
616 | mutex_unlock(&data->lock); | |
617 | return -EPERM; | |
618 | } | |
619 | ||
620 | /* We may have to change the mode */ | |
621 | if (mode == PWM_MODE_MANUAL && val == 0) { | |
622 | /* Transition from Manual to Off */ | |
623 | update_pwm_enable(data, nr, PWM_MODE_OFF); | |
624 | mode = PWM_MODE_OFF; | |
625 | dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1, | |
626 | "manual", "off"); | |
627 | } else if (mode == PWM_MODE_OFF && val != 0) { | |
628 | /* Transition from Off to Manual */ | |
629 | update_pwm_enable(data, nr, PWM_MODE_MANUAL); | |
630 | mode = PWM_MODE_MANUAL; | |
631 | dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1, | |
632 | "off", "manual"); | |
633 | } | |
634 | ||
635 | data->pwm[nr] = val; | |
636 | if (mode == PWM_MODE_MANUAL) | |
637 | outb(val, iobase + PC87427_REG_PWM_DUTY); | |
638 | mutex_unlock(&data->lock); | |
639 | ||
640 | return count; | |
641 | } | |
642 | ||
643 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, | |
644 | show_pwm_enable, set_pwm_enable, 0); | |
645 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, | |
646 | show_pwm_enable, set_pwm_enable, 1); | |
647 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, | |
648 | show_pwm_enable, set_pwm_enable, 2); | |
649 | static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, | |
650 | show_pwm_enable, set_pwm_enable, 3); | |
651 | ||
652 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
653 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
654 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
655 | static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); | |
656 | ||
657 | static struct attribute *pc87427_attributes_pwm[4][3] = { | |
658 | { | |
659 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
660 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
661 | NULL | |
662 | }, { | |
663 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
664 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
665 | NULL | |
666 | }, { | |
667 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
668 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
669 | NULL | |
670 | }, { | |
671 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, | |
672 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
673 | NULL | |
674 | } | |
675 | }; | |
676 | ||
677 | static const struct attribute_group pc87427_group_pwm[4] = { | |
678 | { .attrs = pc87427_attributes_pwm[0] }, | |
679 | { .attrs = pc87427_attributes_pwm[1] }, | |
680 | { .attrs = pc87427_attributes_pwm[2] }, | |
681 | { .attrs = pc87427_attributes_pwm[3] }, | |
682 | }; | |
683 | ||
008e5f33 JD |
684 | static ssize_t show_temp_input(struct device *dev, struct device_attribute |
685 | *devattr, char *buf) | |
686 | { | |
687 | struct pc87427_data *data = pc87427_update_device(dev); | |
688 | int nr = to_sensor_dev_attr(devattr)->index; | |
689 | ||
690 | return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr])); | |
691 | } | |
692 | ||
693 | static ssize_t show_temp_min(struct device *dev, struct device_attribute | |
694 | *devattr, char *buf) | |
695 | { | |
696 | struct pc87427_data *data = pc87427_update_device(dev); | |
697 | int nr = to_sensor_dev_attr(devattr)->index; | |
698 | ||
699 | return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_min[nr])); | |
700 | } | |
701 | ||
702 | static ssize_t show_temp_max(struct device *dev, struct device_attribute | |
703 | *devattr, char *buf) | |
704 | { | |
705 | struct pc87427_data *data = pc87427_update_device(dev); | |
706 | int nr = to_sensor_dev_attr(devattr)->index; | |
707 | ||
708 | return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_max[nr])); | |
709 | } | |
710 | ||
711 | static ssize_t show_temp_crit(struct device *dev, struct device_attribute | |
712 | *devattr, char *buf) | |
713 | { | |
714 | struct pc87427_data *data = pc87427_update_device(dev); | |
715 | int nr = to_sensor_dev_attr(devattr)->index; | |
716 | ||
717 | return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_crit[nr])); | |
718 | } | |
719 | ||
720 | static ssize_t show_temp_type(struct device *dev, struct device_attribute | |
721 | *devattr, char *buf) | |
722 | { | |
723 | struct pc87427_data *data = pc87427_update_device(dev); | |
724 | int nr = to_sensor_dev_attr(devattr)->index; | |
725 | ||
726 | return sprintf(buf, "%u\n", temp_type_from_reg(data->temp_type[nr])); | |
727 | } | |
728 | ||
729 | static ssize_t show_temp_min_alarm(struct device *dev, struct device_attribute | |
730 | *devattr, char *buf) | |
731 | { | |
732 | struct pc87427_data *data = pc87427_update_device(dev); | |
733 | int nr = to_sensor_dev_attr(devattr)->index; | |
734 | ||
735 | return sprintf(buf, "%d\n", !!(data->temp_status[nr] | |
736 | & TEMP_STATUS_LOWFLG)); | |
737 | } | |
738 | ||
739 | static ssize_t show_temp_max_alarm(struct device *dev, struct device_attribute | |
740 | *devattr, char *buf) | |
741 | { | |
742 | struct pc87427_data *data = pc87427_update_device(dev); | |
743 | int nr = to_sensor_dev_attr(devattr)->index; | |
744 | ||
745 | return sprintf(buf, "%d\n", !!(data->temp_status[nr] | |
746 | & TEMP_STATUS_HIGHFLG)); | |
747 | } | |
748 | ||
749 | static ssize_t show_temp_crit_alarm(struct device *dev, struct device_attribute | |
750 | *devattr, char *buf) | |
751 | { | |
752 | struct pc87427_data *data = pc87427_update_device(dev); | |
753 | int nr = to_sensor_dev_attr(devattr)->index; | |
754 | ||
755 | return sprintf(buf, "%d\n", !!(data->temp_status[nr] | |
756 | & TEMP_STATUS_CRITFLG)); | |
757 | } | |
758 | ||
759 | static ssize_t show_temp_fault(struct device *dev, struct device_attribute | |
760 | *devattr, char *buf) | |
761 | { | |
762 | struct pc87427_data *data = pc87427_update_device(dev); | |
763 | int nr = to_sensor_dev_attr(devattr)->index; | |
764 | ||
765 | return sprintf(buf, "%d\n", !!(data->temp_status[nr] | |
766 | & TEMP_STATUS_SENSERR)); | |
767 | } | |
768 | ||
769 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0); | |
770 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1); | |
771 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2); | |
772 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_input, NULL, 3); | |
773 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp_input, NULL, 4); | |
774 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp_input, NULL, 5); | |
775 | ||
776 | static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp_min, NULL, 0); | |
777 | static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp_min, NULL, 1); | |
778 | static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp_min, NULL, 2); | |
779 | static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO, show_temp_min, NULL, 3); | |
780 | static SENSOR_DEVICE_ATTR(temp5_min, S_IRUGO, show_temp_min, NULL, 4); | |
781 | static SENSOR_DEVICE_ATTR(temp6_min, S_IRUGO, show_temp_min, NULL, 5); | |
782 | ||
783 | static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max, NULL, 0); | |
784 | static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max, NULL, 1); | |
785 | static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max, NULL, 2); | |
786 | static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max, NULL, 3); | |
787 | static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max, NULL, 4); | |
788 | static SENSOR_DEVICE_ATTR(temp6_max, S_IRUGO, show_temp_max, NULL, 5); | |
789 | ||
790 | static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0); | |
791 | static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit, NULL, 1); | |
792 | static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit, NULL, 2); | |
793 | static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp_crit, NULL, 3); | |
794 | static SENSOR_DEVICE_ATTR(temp5_crit, S_IRUGO, show_temp_crit, NULL, 4); | |
795 | static SENSOR_DEVICE_ATTR(temp6_crit, S_IRUGO, show_temp_crit, NULL, 5); | |
796 | ||
797 | static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0); | |
798 | static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1); | |
799 | static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2); | |
800 | static SENSOR_DEVICE_ATTR(temp4_type, S_IRUGO, show_temp_type, NULL, 3); | |
801 | static SENSOR_DEVICE_ATTR(temp5_type, S_IRUGO, show_temp_type, NULL, 4); | |
802 | static SENSOR_DEVICE_ATTR(temp6_type, S_IRUGO, show_temp_type, NULL, 5); | |
803 | ||
804 | static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, | |
805 | show_temp_min_alarm, NULL, 0); | |
806 | static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, | |
807 | show_temp_min_alarm, NULL, 1); | |
808 | static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, | |
809 | show_temp_min_alarm, NULL, 2); | |
810 | static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO, | |
811 | show_temp_min_alarm, NULL, 3); | |
812 | static SENSOR_DEVICE_ATTR(temp5_min_alarm, S_IRUGO, | |
813 | show_temp_min_alarm, NULL, 4); | |
814 | static SENSOR_DEVICE_ATTR(temp6_min_alarm, S_IRUGO, | |
815 | show_temp_min_alarm, NULL, 5); | |
816 | ||
817 | static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, | |
818 | show_temp_max_alarm, NULL, 0); | |
819 | static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, | |
820 | show_temp_max_alarm, NULL, 1); | |
821 | static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, | |
822 | show_temp_max_alarm, NULL, 2); | |
823 | static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, | |
824 | show_temp_max_alarm, NULL, 3); | |
825 | static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO, | |
826 | show_temp_max_alarm, NULL, 4); | |
827 | static SENSOR_DEVICE_ATTR(temp6_max_alarm, S_IRUGO, | |
828 | show_temp_max_alarm, NULL, 5); | |
829 | ||
830 | static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, | |
831 | show_temp_crit_alarm, NULL, 0); | |
832 | static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, | |
833 | show_temp_crit_alarm, NULL, 1); | |
834 | static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, | |
835 | show_temp_crit_alarm, NULL, 2); | |
836 | static SENSOR_DEVICE_ATTR(temp4_crit_alarm, S_IRUGO, | |
837 | show_temp_crit_alarm, NULL, 3); | |
838 | static SENSOR_DEVICE_ATTR(temp5_crit_alarm, S_IRUGO, | |
839 | show_temp_crit_alarm, NULL, 4); | |
840 | static SENSOR_DEVICE_ATTR(temp6_crit_alarm, S_IRUGO, | |
841 | show_temp_crit_alarm, NULL, 5); | |
842 | ||
843 | static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0); | |
844 | static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1); | |
845 | static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2); | |
846 | static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_temp_fault, NULL, 3); | |
847 | static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_temp_fault, NULL, 4); | |
848 | static SENSOR_DEVICE_ATTR(temp6_fault, S_IRUGO, show_temp_fault, NULL, 5); | |
849 | ||
850 | static struct attribute *pc87427_attributes_temp[6][10] = { | |
851 | { | |
852 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
853 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
854 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
855 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
856 | &sensor_dev_attr_temp1_type.dev_attr.attr, | |
857 | &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, | |
858 | &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, | |
859 | &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, | |
860 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
861 | NULL | |
862 | }, { | |
863 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
864 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
865 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
866 | &sensor_dev_attr_temp2_crit.dev_attr.attr, | |
867 | &sensor_dev_attr_temp2_type.dev_attr.attr, | |
868 | &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, | |
869 | &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, | |
870 | &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, | |
871 | &sensor_dev_attr_temp2_fault.dev_attr.attr, | |
872 | NULL | |
873 | }, { | |
874 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
875 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
876 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
877 | &sensor_dev_attr_temp3_crit.dev_attr.attr, | |
878 | &sensor_dev_attr_temp3_type.dev_attr.attr, | |
879 | &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, | |
880 | &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, | |
881 | &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, | |
882 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
883 | NULL | |
884 | }, { | |
885 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
886 | &sensor_dev_attr_temp4_min.dev_attr.attr, | |
887 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
888 | &sensor_dev_attr_temp4_crit.dev_attr.attr, | |
889 | &sensor_dev_attr_temp4_type.dev_attr.attr, | |
890 | &sensor_dev_attr_temp4_min_alarm.dev_attr.attr, | |
891 | &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, | |
892 | &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, | |
893 | &sensor_dev_attr_temp4_fault.dev_attr.attr, | |
894 | NULL | |
895 | }, { | |
896 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
897 | &sensor_dev_attr_temp5_min.dev_attr.attr, | |
898 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
899 | &sensor_dev_attr_temp5_crit.dev_attr.attr, | |
900 | &sensor_dev_attr_temp5_type.dev_attr.attr, | |
901 | &sensor_dev_attr_temp5_min_alarm.dev_attr.attr, | |
902 | &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, | |
903 | &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, | |
904 | &sensor_dev_attr_temp5_fault.dev_attr.attr, | |
905 | NULL | |
906 | }, { | |
907 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
908 | &sensor_dev_attr_temp6_min.dev_attr.attr, | |
909 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
910 | &sensor_dev_attr_temp6_crit.dev_attr.attr, | |
911 | &sensor_dev_attr_temp6_type.dev_attr.attr, | |
912 | &sensor_dev_attr_temp6_min_alarm.dev_attr.attr, | |
913 | &sensor_dev_attr_temp6_max_alarm.dev_attr.attr, | |
914 | &sensor_dev_attr_temp6_crit_alarm.dev_attr.attr, | |
915 | &sensor_dev_attr_temp6_fault.dev_attr.attr, | |
916 | NULL | |
917 | } | |
918 | }; | |
919 | ||
920 | static const struct attribute_group pc87427_group_temp[6] = { | |
921 | { .attrs = pc87427_attributes_temp[0] }, | |
922 | { .attrs = pc87427_attributes_temp[1] }, | |
923 | { .attrs = pc87427_attributes_temp[2] }, | |
924 | { .attrs = pc87427_attributes_temp[3] }, | |
925 | { .attrs = pc87427_attributes_temp[4] }, | |
926 | { .attrs = pc87427_attributes_temp[5] }, | |
927 | }; | |
928 | ||
ba224e2c JD |
929 | static ssize_t show_name(struct device *dev, struct device_attribute |
930 | *devattr, char *buf) | |
931 | { | |
932 | struct pc87427_data *data = dev_get_drvdata(dev); | |
933 | ||
934 | return sprintf(buf, "%s\n", data->name); | |
935 | } | |
936 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
937 | ||
938 | ||
939 | /* | |
940 | * Device detection, attach and detach | |
941 | */ | |
942 | ||
9d32df19 JD |
943 | static void pc87427_release_regions(struct platform_device *pdev, int count) |
944 | { | |
945 | struct resource *res; | |
946 | int i; | |
947 | ||
948 | for (i = 0; i < count; i++) { | |
949 | res = platform_get_resource(pdev, IORESOURCE_IO, i); | |
950 | release_region(res->start, resource_size(res)); | |
951 | } | |
952 | } | |
953 | ||
954 | static int __devinit pc87427_request_regions(struct platform_device *pdev, | |
955 | int count) | |
956 | { | |
957 | struct resource *res; | |
958 | int i, err = 0; | |
959 | ||
960 | for (i = 0; i < count; i++) { | |
961 | res = platform_get_resource(pdev, IORESOURCE_IO, i); | |
962 | if (!res) { | |
963 | err = -ENOENT; | |
964 | dev_err(&pdev->dev, "Missing resource #%d\n", i); | |
965 | break; | |
966 | } | |
967 | if (!request_region(res->start, resource_size(res), DRVNAME)) { | |
968 | err = -EBUSY; | |
969 | dev_err(&pdev->dev, | |
970 | "Failed to request region 0x%lx-0x%lx\n", | |
971 | (unsigned long)res->start, | |
972 | (unsigned long)res->end); | |
973 | break; | |
974 | } | |
975 | } | |
976 | ||
977 | if (err && i) | |
978 | pc87427_release_regions(pdev, i); | |
979 | ||
980 | return err; | |
981 | } | |
982 | ||
ba224e2c JD |
983 | static void __devinit pc87427_init_device(struct device *dev) |
984 | { | |
4e7d99e1 | 985 | struct pc87427_sio_data *sio_data = dev->platform_data; |
ba224e2c JD |
986 | struct pc87427_data *data = dev_get_drvdata(dev); |
987 | int i; | |
988 | u8 reg; | |
989 | ||
990 | /* The FMC module should be ready */ | |
991 | reg = pc87427_read8(data, LD_FAN, PC87427_REG_BANK); | |
992 | if (!(reg & 0x80)) | |
008e5f33 | 993 | dev_warn(dev, "%s module not ready!\n", "FMC"); |
ba224e2c JD |
994 | |
995 | /* Check which fans are enabled */ | |
996 | for (i = 0; i < 8; i++) { | |
4e7d99e1 JD |
997 | if (!(sio_data->has_fanin & (1 << i))) /* Not wired */ |
998 | continue; | |
ba224e2c JD |
999 | reg = pc87427_read8_bank(data, LD_FAN, BANK_FM(i), |
1000 | PC87427_REG_FAN_STATUS); | |
1001 | if (reg & FAN_STATUS_MONEN) | |
1002 | data->fan_enabled |= (1 << i); | |
1003 | } | |
1004 | ||
1005 | if (!data->fan_enabled) { | |
4e7d99e1 JD |
1006 | dev_dbg(dev, "Enabling monitoring of all fans\n"); |
1007 | for (i = 0; i < 8; i++) { | |
1008 | if (!(sio_data->has_fanin & (1 << i))) /* Not wired */ | |
1009 | continue; | |
ba224e2c JD |
1010 | pc87427_write8_bank(data, LD_FAN, BANK_FM(i), |
1011 | PC87427_REG_FAN_STATUS, | |
1012 | FAN_STATUS_MONEN); | |
4e7d99e1 JD |
1013 | } |
1014 | data->fan_enabled = sio_data->has_fanin; | |
ba224e2c | 1015 | } |
328716bc JD |
1016 | |
1017 | /* Check which PWM outputs are enabled */ | |
1018 | for (i = 0; i < 4; i++) { | |
1019 | if (!(sio_data->has_fanout & (1 << i))) /* Not wired */ | |
1020 | continue; | |
1021 | reg = pc87427_read8_bank(data, LD_FAN, BANK_FC(i), | |
1022 | PC87427_REG_PWM_ENABLE); | |
1023 | if (reg & PWM_ENABLE_CTLEN) | |
1024 | data->pwm_enabled |= (1 << i); | |
1025 | ||
1026 | /* We don't expose an interface to reconfigure the automatic | |
1027 | fan control mode, so only allow to return to this mode if | |
1028 | it was originally set. */ | |
1029 | if ((reg & PWM_ENABLE_MODE_MASK) == PWM_MODE_AUTO) { | |
1030 | dev_dbg(dev, "PWM%d is in automatic control mode\n", | |
1031 | i + 1); | |
1032 | data->pwm_auto_ok |= (1 << i); | |
1033 | } | |
1034 | } | |
008e5f33 JD |
1035 | |
1036 | /* The HMC module should be ready */ | |
1037 | reg = pc87427_read8(data, LD_TEMP, PC87427_REG_BANK); | |
1038 | if (!(reg & 0x80)) | |
1039 | dev_warn(dev, "%s module not ready!\n", "HMC"); | |
1040 | ||
1041 | /* Check which temperature channels are enabled */ | |
1042 | for (i = 0; i < 6; i++) { | |
1043 | reg = pc87427_read8_bank(data, LD_TEMP, BANK_TM(i), | |
1044 | PC87427_REG_TEMP_STATUS); | |
1045 | if (reg & TEMP_STATUS_CHANEN) | |
1046 | data->temp_enabled |= (1 << i); | |
1047 | } | |
ba224e2c JD |
1048 | } |
1049 | ||
c6b87246 JD |
1050 | static void pc87427_remove_files(struct device *dev) |
1051 | { | |
1052 | struct pc87427_data *data = dev_get_drvdata(dev); | |
1053 | int i; | |
1054 | ||
1055 | device_remove_file(dev, &dev_attr_name); | |
1056 | for (i = 0; i < 8; i++) { | |
1057 | if (!(data->fan_enabled & (1 << i))) | |
1058 | continue; | |
1059 | sysfs_remove_group(&dev->kobj, &pc87427_group_fan[i]); | |
1060 | } | |
1061 | for (i = 0; i < 4; i++) { | |
1062 | if (!(data->pwm_enabled & (1 << i))) | |
1063 | continue; | |
1064 | sysfs_remove_group(&dev->kobj, &pc87427_group_pwm[i]); | |
1065 | } | |
1066 | for (i = 0; i < 6; i++) { | |
1067 | if (!(data->temp_enabled & (1 << i))) | |
1068 | continue; | |
1069 | sysfs_remove_group(&dev->kobj, &pc87427_group_temp[i]); | |
1070 | } | |
1071 | } | |
1072 | ||
ba224e2c JD |
1073 | static int __devinit pc87427_probe(struct platform_device *pdev) |
1074 | { | |
9d32df19 | 1075 | struct pc87427_sio_data *sio_data = pdev->dev.platform_data; |
ba224e2c | 1076 | struct pc87427_data *data; |
9d32df19 | 1077 | int i, err, res_count; |
ba224e2c | 1078 | |
0d22d583 JD |
1079 | data = kzalloc(sizeof(struct pc87427_data), GFP_KERNEL); |
1080 | if (!data) { | |
ba224e2c | 1081 | err = -ENOMEM; |
5e24e0c3 | 1082 | pr_err("Out of memory\n"); |
ba224e2c JD |
1083 | goto exit; |
1084 | } | |
1085 | ||
9d32df19 JD |
1086 | data->address[0] = sio_data->address[0]; |
1087 | data->address[1] = sio_data->address[1]; | |
1088 | res_count = (data->address[0] != 0) + (data->address[1] != 0); | |
1089 | ||
1090 | err = pc87427_request_regions(pdev, res_count); | |
1091 | if (err) | |
ce7ee4e8 | 1092 | goto exit_kfree; |
ba224e2c JD |
1093 | |
1094 | mutex_init(&data->lock); | |
1095 | data->name = "pc87427"; | |
1096 | platform_set_drvdata(pdev, data); | |
1097 | pc87427_init_device(&pdev->dev); | |
1098 | ||
1099 | /* Register sysfs hooks */ | |
0d22d583 JD |
1100 | err = device_create_file(&pdev->dev, &dev_attr_name); |
1101 | if (err) | |
ce7ee4e8 | 1102 | goto exit_release_region; |
ba224e2c JD |
1103 | for (i = 0; i < 8; i++) { |
1104 | if (!(data->fan_enabled & (1 << i))) | |
1105 | continue; | |
0d22d583 JD |
1106 | err = sysfs_create_group(&pdev->dev.kobj, |
1107 | &pc87427_group_fan[i]); | |
1108 | if (err) | |
ba224e2c JD |
1109 | goto exit_remove_files; |
1110 | } | |
328716bc JD |
1111 | for (i = 0; i < 4; i++) { |
1112 | if (!(data->pwm_enabled & (1 << i))) | |
1113 | continue; | |
1114 | err = sysfs_create_group(&pdev->dev.kobj, | |
1115 | &pc87427_group_pwm[i]); | |
1116 | if (err) | |
1117 | goto exit_remove_files; | |
1118 | } | |
008e5f33 JD |
1119 | for (i = 0; i < 6; i++) { |
1120 | if (!(data->temp_enabled & (1 << i))) | |
1121 | continue; | |
1122 | err = sysfs_create_group(&pdev->dev.kobj, | |
1123 | &pc87427_group_temp[i]); | |
1124 | if (err) | |
1125 | goto exit_remove_files; | |
1126 | } | |
ba224e2c | 1127 | |
1beeffe4 TJ |
1128 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
1129 | if (IS_ERR(data->hwmon_dev)) { | |
1130 | err = PTR_ERR(data->hwmon_dev); | |
ba224e2c JD |
1131 | dev_err(&pdev->dev, "Class registration failed (%d)\n", err); |
1132 | goto exit_remove_files; | |
1133 | } | |
1134 | ||
1135 | return 0; | |
1136 | ||
1137 | exit_remove_files: | |
c6b87246 | 1138 | pc87427_remove_files(&pdev->dev); |
ce7ee4e8 | 1139 | exit_release_region: |
9d32df19 | 1140 | pc87427_release_regions(pdev, res_count); |
ba224e2c JD |
1141 | exit_kfree: |
1142 | platform_set_drvdata(pdev, NULL); | |
1143 | kfree(data); | |
1144 | exit: | |
1145 | return err; | |
1146 | } | |
1147 | ||
1148 | static int __devexit pc87427_remove(struct platform_device *pdev) | |
1149 | { | |
1150 | struct pc87427_data *data = platform_get_drvdata(pdev); | |
c6b87246 | 1151 | int res_count; |
9d32df19 JD |
1152 | |
1153 | res_count = (data->address[0] != 0) + (data->address[1] != 0); | |
ba224e2c | 1154 | |
1beeffe4 | 1155 | hwmon_device_unregister(data->hwmon_dev); |
c6b87246 | 1156 | pc87427_remove_files(&pdev->dev); |
04a6217d | 1157 | platform_set_drvdata(pdev, NULL); |
ba224e2c JD |
1158 | kfree(data); |
1159 | ||
9d32df19 | 1160 | pc87427_release_regions(pdev, res_count); |
ce7ee4e8 | 1161 | |
ba224e2c JD |
1162 | return 0; |
1163 | } | |
1164 | ||
1165 | ||
1166 | static struct platform_driver pc87427_driver = { | |
1167 | .driver = { | |
1168 | .owner = THIS_MODULE, | |
1169 | .name = DRVNAME, | |
1170 | }, | |
1171 | .probe = pc87427_probe, | |
1172 | .remove = __devexit_p(pc87427_remove), | |
1173 | }; | |
1174 | ||
9d32df19 | 1175 | static int __init pc87427_device_add(const struct pc87427_sio_data *sio_data) |
ba224e2c | 1176 | { |
9d32df19 JD |
1177 | struct resource res[2] = { |
1178 | { .flags = IORESOURCE_IO }, | |
1179 | { .flags = IORESOURCE_IO }, | |
ba224e2c | 1180 | }; |
9d32df19 | 1181 | int err, i, res_count; |
ba224e2c | 1182 | |
9d32df19 JD |
1183 | res_count = 0; |
1184 | for (i = 0; i < 2; i++) { | |
1185 | if (!sio_data->address[i]) | |
1186 | continue; | |
1187 | res[res_count].start = sio_data->address[i]; | |
1188 | res[res_count].end = sio_data->address[i] + REGION_LENGTH - 1; | |
1189 | res[res_count].name = logdev_str[i]; | |
b9acb64a | 1190 | |
9d32df19 JD |
1191 | err = acpi_check_resource_conflict(&res[res_count]); |
1192 | if (err) | |
1193 | goto exit; | |
1194 | ||
1195 | res_count++; | |
1196 | } | |
1197 | ||
1198 | pdev = platform_device_alloc(DRVNAME, res[0].start); | |
ba224e2c JD |
1199 | if (!pdev) { |
1200 | err = -ENOMEM; | |
5e24e0c3 | 1201 | pr_err("Device allocation failed\n"); |
ba224e2c JD |
1202 | goto exit; |
1203 | } | |
1204 | ||
9d32df19 | 1205 | err = platform_device_add_resources(pdev, res, res_count); |
ba224e2c | 1206 | if (err) { |
5e24e0c3 | 1207 | pr_err("Device resource addition failed (%d)\n", err); |
ba224e2c JD |
1208 | goto exit_device_put; |
1209 | } | |
1210 | ||
4e7d99e1 JD |
1211 | err = platform_device_add_data(pdev, sio_data, |
1212 | sizeof(struct pc87427_sio_data)); | |
1213 | if (err) { | |
5e24e0c3 | 1214 | pr_err("Platform data allocation failed\n"); |
4e7d99e1 JD |
1215 | goto exit_device_put; |
1216 | } | |
1217 | ||
ba224e2c JD |
1218 | err = platform_device_add(pdev); |
1219 | if (err) { | |
5e24e0c3 | 1220 | pr_err("Device addition failed (%d)\n", err); |
ba224e2c JD |
1221 | goto exit_device_put; |
1222 | } | |
1223 | ||
1224 | return 0; | |
1225 | ||
1226 | exit_device_put: | |
1227 | platform_device_put(pdev); | |
1228 | exit: | |
1229 | return err; | |
1230 | } | |
1231 | ||
9d32df19 | 1232 | static int __init pc87427_find(int sioaddr, struct pc87427_sio_data *sio_data) |
ba224e2c JD |
1233 | { |
1234 | u16 val; | |
4e7d99e1 | 1235 | u8 cfg, cfg_b; |
ba224e2c JD |
1236 | int i, err = 0; |
1237 | ||
1238 | /* Identify device */ | |
67b671bc | 1239 | val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID); |
ba224e2c JD |
1240 | if (val != 0xf2) { /* PC87427 */ |
1241 | err = -ENODEV; | |
1242 | goto exit; | |
1243 | } | |
1244 | ||
1245 | for (i = 0; i < 2; i++) { | |
9d32df19 | 1246 | sio_data->address[i] = 0; |
ba224e2c JD |
1247 | /* Select logical device */ |
1248 | superio_outb(sioaddr, SIOREG_LDSEL, logdev[i]); | |
1249 | ||
1250 | val = superio_inb(sioaddr, SIOREG_ACT); | |
1251 | if (!(val & 0x01)) { | |
5e24e0c3 JP |
1252 | pr_info("Logical device 0x%02x not activated\n", |
1253 | logdev[i]); | |
ba224e2c JD |
1254 | continue; |
1255 | } | |
1256 | ||
1257 | val = superio_inb(sioaddr, SIOREG_MAP); | |
1258 | if (val & 0x01) { | |
5e24e0c3 JP |
1259 | pr_warn("Logical device 0x%02x is memory-mapped, " |
1260 | "can't use\n", logdev[i]); | |
ba224e2c JD |
1261 | continue; |
1262 | } | |
1263 | ||
1264 | val = (superio_inb(sioaddr, SIOREG_IOBASE) << 8) | |
1265 | | superio_inb(sioaddr, SIOREG_IOBASE + 1); | |
1266 | if (!val) { | |
5e24e0c3 JP |
1267 | pr_info("I/O base address not set for logical device " |
1268 | "0x%02x\n", logdev[i]); | |
ba224e2c JD |
1269 | continue; |
1270 | } | |
9d32df19 JD |
1271 | sio_data->address[i] = val; |
1272 | } | |
1273 | ||
1274 | /* No point in loading the driver if everything is disabled */ | |
1275 | if (!sio_data->address[0] && !sio_data->address[1]) { | |
1276 | err = -ENODEV; | |
1277 | goto exit; | |
ba224e2c JD |
1278 | } |
1279 | ||
4e7d99e1 JD |
1280 | /* Check which fan inputs are wired */ |
1281 | sio_data->has_fanin = (1 << 2) | (1 << 3); /* FANIN2, FANIN3 */ | |
1282 | ||
1283 | cfg = superio_inb(sioaddr, SIOREG_CF2); | |
1284 | if (!(cfg & (1 << 3))) | |
1285 | sio_data->has_fanin |= (1 << 0); /* FANIN0 */ | |
1286 | if (!(cfg & (1 << 2))) | |
1287 | sio_data->has_fanin |= (1 << 4); /* FANIN4 */ | |
1288 | ||
1289 | cfg = superio_inb(sioaddr, SIOREG_CFD); | |
1290 | if (!(cfg & (1 << 0))) | |
1291 | sio_data->has_fanin |= (1 << 1); /* FANIN1 */ | |
1292 | ||
1293 | cfg = superio_inb(sioaddr, SIOREG_CF4); | |
1294 | if (!(cfg & (1 << 0))) | |
1295 | sio_data->has_fanin |= (1 << 7); /* FANIN7 */ | |
1296 | cfg_b = superio_inb(sioaddr, SIOREG_CFB); | |
1297 | if (!(cfg & (1 << 1)) && (cfg_b & (1 << 3))) | |
1298 | sio_data->has_fanin |= (1 << 5); /* FANIN5 */ | |
1299 | cfg = superio_inb(sioaddr, SIOREG_CF3); | |
1300 | if ((cfg & (1 << 3)) && !(cfg_b & (1 << 5))) | |
1301 | sio_data->has_fanin |= (1 << 6); /* FANIN6 */ | |
1302 | ||
328716bc JD |
1303 | /* Check which fan outputs are wired */ |
1304 | sio_data->has_fanout = (1 << 0); /* FANOUT0 */ | |
1305 | if (cfg_b & (1 << 0)) | |
1306 | sio_data->has_fanout |= (1 << 3); /* FANOUT3 */ | |
1307 | ||
1308 | cfg = superio_inb(sioaddr, SIOREG_CFC); | |
1309 | if (!(cfg & (1 << 4))) { | |
1310 | if (cfg_b & (1 << 1)) | |
1311 | sio_data->has_fanout |= (1 << 1); /* FANOUT1 */ | |
1312 | if (cfg_b & (1 << 2)) | |
1313 | sio_data->has_fanout |= (1 << 2); /* FANOUT2 */ | |
1314 | } | |
1315 | ||
1316 | /* FANOUT1 and FANOUT2 can each be routed to 2 different pins */ | |
1317 | cfg = superio_inb(sioaddr, SIOREG_CF5); | |
1318 | if (cfg & (1 << 6)) | |
1319 | sio_data->has_fanout |= (1 << 1); /* FANOUT1 */ | |
1320 | if (cfg & (1 << 5)) | |
1321 | sio_data->has_fanout |= (1 << 2); /* FANOUT2 */ | |
1322 | ||
ba224e2c JD |
1323 | exit: |
1324 | superio_exit(sioaddr); | |
1325 | return err; | |
1326 | } | |
1327 | ||
1328 | static int __init pc87427_init(void) | |
1329 | { | |
1330 | int err; | |
4e7d99e1 | 1331 | struct pc87427_sio_data sio_data; |
ba224e2c | 1332 | |
9d32df19 JD |
1333 | if (pc87427_find(0x2e, &sio_data) |
1334 | && pc87427_find(0x4e, &sio_data)) | |
ba224e2c JD |
1335 | return -ENODEV; |
1336 | ||
1337 | err = platform_driver_register(&pc87427_driver); | |
1338 | if (err) | |
1339 | goto exit; | |
1340 | ||
1341 | /* Sets global pdev as a side effect */ | |
9d32df19 | 1342 | err = pc87427_device_add(&sio_data); |
ba224e2c JD |
1343 | if (err) |
1344 | goto exit_driver; | |
1345 | ||
1346 | return 0; | |
1347 | ||
1348 | exit_driver: | |
1349 | platform_driver_unregister(&pc87427_driver); | |
1350 | exit: | |
1351 | return err; | |
1352 | } | |
1353 | ||
1354 | static void __exit pc87427_exit(void) | |
1355 | { | |
1356 | platform_device_unregister(pdev); | |
1357 | platform_driver_unregister(&pc87427_driver); | |
1358 | } | |
1359 | ||
1360 | MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); | |
1361 | MODULE_DESCRIPTION("PC87427 hardware monitoring driver"); | |
1362 | MODULE_LICENSE("GPL"); | |
1363 | ||
1364 | module_init(pc87427_init); | |
1365 | module_exit(pc87427_exit); |