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Merge tag 'v3.17-rc4' into sched/core, to prevent conflicts with upcoming patches...
[deliverable/linux.git] / drivers / hwmon / pc87360.c
1 /*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Supports the following chips:
24 *
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
31 *
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
34 */
35
36 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
37
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/slab.h>
41 #include <linux/jiffies.h>
42 #include <linux/platform_device.h>
43 #include <linux/hwmon.h>
44 #include <linux/hwmon-sysfs.h>
45 #include <linux/hwmon-vid.h>
46 #include <linux/err.h>
47 #include <linux/mutex.h>
48 #include <linux/acpi.h>
49 #include <linux/io.h>
50
51 static u8 devid;
52 static struct platform_device *pdev;
53 static unsigned short extra_isa[3];
54 static u8 confreg[4];
55
56 static int init = 1;
57 module_param(init, int, 0);
58 MODULE_PARM_DESC(init,
59 "Chip initialization level:\n"
60 " 0: None\n"
61 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
62 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
63 " 3: Forcibly enable all voltage and temperature channels, including in9");
64
65 static unsigned short force_id;
66 module_param(force_id, ushort, 0);
67 MODULE_PARM_DESC(force_id, "Override the detected device ID");
68
69 /*
70 * Super-I/O registers and operations
71 */
72
73 #define DEV 0x07 /* Register: Logical device select */
74 #define DEVID 0x20 /* Register: Device ID */
75 #define ACT 0x30 /* Register: Device activation */
76 #define BASE 0x60 /* Register: Base address */
77
78 #define FSCM 0x09 /* Logical device: fans */
79 #define VLM 0x0d /* Logical device: voltages */
80 #define TMS 0x0e /* Logical device: temperatures */
81 #define LDNI_MAX 3
82 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
83
84 #define LD_FAN 0
85 #define LD_IN 1
86 #define LD_TEMP 2
87
88 static inline void superio_outb(int sioaddr, int reg, int val)
89 {
90 outb(reg, sioaddr);
91 outb(val, sioaddr + 1);
92 }
93
94 static inline int superio_inb(int sioaddr, int reg)
95 {
96 outb(reg, sioaddr);
97 return inb(sioaddr + 1);
98 }
99
100 static inline void superio_exit(int sioaddr)
101 {
102 outb(0x02, sioaddr);
103 outb(0x02, sioaddr + 1);
104 }
105
106 /*
107 * Logical devices
108 */
109
110 #define PC87360_EXTENT 0x10
111 #define PC87365_REG_BANK 0x09
112 #define NO_BANK 0xff
113
114 /*
115 * Fan registers and conversions
116 */
117
118 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
119 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
120 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
121 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
122 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
123 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
124
125 #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \
126 480000 / ((val) * (div)))
127 #define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \
128 480000 / ((val) * (div)))
129 #define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03))
130 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
131
132 #define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1)
133 #define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1)
134 #define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1)
135
136 #define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val))
137 static inline u8 PWM_TO_REG(int val, int inv)
138 {
139 if (inv)
140 val = 255 - val;
141 if (val < 0)
142 return 0;
143 if (val > 255)
144 return 255;
145 return val;
146 }
147
148 /*
149 * Voltage registers and conversions
150 */
151
152 #define PC87365_REG_IN_CONVRATE 0x07
153 #define PC87365_REG_IN_CONFIG 0x08
154 #define PC87365_REG_IN 0x0B
155 #define PC87365_REG_IN_MIN 0x0D
156 #define PC87365_REG_IN_MAX 0x0C
157 #define PC87365_REG_IN_STATUS 0x0A
158 #define PC87365_REG_IN_ALARMS1 0x00
159 #define PC87365_REG_IN_ALARMS2 0x01
160 #define PC87365_REG_VID 0x06
161
162 #define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256)
163 #define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \
164 (val) * 256 >= (ref) * 255 ? 255 : \
165 ((val) * 256 + (ref) / 2) / (ref))
166
167 /*
168 * Temperature registers and conversions
169 */
170
171 #define PC87365_REG_TEMP_CONFIG 0x08
172 #define PC87365_REG_TEMP 0x0B
173 #define PC87365_REG_TEMP_MIN 0x0D
174 #define PC87365_REG_TEMP_MAX 0x0C
175 #define PC87365_REG_TEMP_CRIT 0x0E
176 #define PC87365_REG_TEMP_STATUS 0x0A
177 #define PC87365_REG_TEMP_ALARMS 0x00
178
179 #define TEMP_FROM_REG(val) ((val) * 1000)
180 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
181 (val) > 127000 ? 127 : \
182 (val) < 0 ? ((val) - 500) / 1000 : \
183 ((val) + 500) / 1000)
184
185 /*
186 * Device data
187 */
188
189 struct pc87360_data {
190 const char *name;
191 struct device *hwmon_dev;
192 struct mutex lock;
193 struct mutex update_lock;
194 char valid; /* !=0 if following fields are valid */
195 unsigned long last_updated; /* In jiffies */
196
197 int address[3];
198
199 u8 fannr, innr, tempnr;
200
201 u8 fan[3]; /* Register value */
202 u8 fan_min[3]; /* Register value */
203 u8 fan_status[3]; /* Register value */
204 u8 pwm[3]; /* Register value */
205 u16 fan_conf; /* Configuration register values, combined */
206
207 u16 in_vref; /* 1 mV/bit */
208 u8 in[14]; /* Register value */
209 u8 in_min[14]; /* Register value */
210 u8 in_max[14]; /* Register value */
211 u8 in_crit[3]; /* Register value */
212 u8 in_status[14]; /* Register value */
213 u16 in_alarms; /* Register values, combined, masked */
214 u8 vid_conf; /* Configuration register value */
215 u8 vrm;
216 u8 vid; /* Register value */
217
218 s8 temp[3]; /* Register value */
219 s8 temp_min[3]; /* Register value */
220 s8 temp_max[3]; /* Register value */
221 s8 temp_crit[3]; /* Register value */
222 u8 temp_status[3]; /* Register value */
223 u8 temp_alarms; /* Register value, masked */
224 };
225
226 /*
227 * Functions declaration
228 */
229
230 static int pc87360_probe(struct platform_device *pdev);
231 static int pc87360_remove(struct platform_device *pdev);
232
233 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
234 u8 reg);
235 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
236 u8 reg, u8 value);
237 static void pc87360_init_device(struct platform_device *pdev,
238 int use_thermistors);
239 static struct pc87360_data *pc87360_update_device(struct device *dev);
240
241 /*
242 * Driver data
243 */
244
245 static struct platform_driver pc87360_driver = {
246 .driver = {
247 .owner = THIS_MODULE,
248 .name = "pc87360",
249 },
250 .probe = pc87360_probe,
251 .remove = pc87360_remove,
252 };
253
254 /*
255 * Sysfs stuff
256 */
257
258 static ssize_t show_fan_input(struct device *dev,
259 struct device_attribute *devattr, char *buf)
260 {
261 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
262 struct pc87360_data *data = pc87360_update_device(dev);
263 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
264 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
265 }
266 static ssize_t show_fan_min(struct device *dev,
267 struct device_attribute *devattr, char *buf)
268 {
269 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
270 struct pc87360_data *data = pc87360_update_device(dev);
271 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
272 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
273 }
274 static ssize_t show_fan_div(struct device *dev,
275 struct device_attribute *devattr, char *buf)
276 {
277 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
278 struct pc87360_data *data = pc87360_update_device(dev);
279 return sprintf(buf, "%u\n",
280 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
281 }
282 static ssize_t show_fan_status(struct device *dev,
283 struct device_attribute *devattr, char *buf)
284 {
285 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
286 struct pc87360_data *data = pc87360_update_device(dev);
287 return sprintf(buf, "%u\n",
288 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
289 }
290 static ssize_t set_fan_min(struct device *dev,
291 struct device_attribute *devattr, const char *buf,
292 size_t count)
293 {
294 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
295 struct pc87360_data *data = dev_get_drvdata(dev);
296 long fan_min;
297 int err;
298
299 err = kstrtol(buf, 10, &fan_min);
300 if (err)
301 return err;
302
303 mutex_lock(&data->update_lock);
304 fan_min = FAN_TO_REG(fan_min,
305 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
306
307 /* If it wouldn't fit, change clock divisor */
308 while (fan_min > 255
309 && (data->fan_status[attr->index] & 0x60) != 0x60) {
310 fan_min >>= 1;
311 data->fan[attr->index] >>= 1;
312 data->fan_status[attr->index] += 0x20;
313 }
314 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
315 pc87360_write_value(data, LD_FAN, NO_BANK,
316 PC87360_REG_FAN_MIN(attr->index),
317 data->fan_min[attr->index]);
318
319 /* Write new divider, preserve alarm bits */
320 pc87360_write_value(data, LD_FAN, NO_BANK,
321 PC87360_REG_FAN_STATUS(attr->index),
322 data->fan_status[attr->index] & 0xF9);
323 mutex_unlock(&data->update_lock);
324
325 return count;
326 }
327
328 static struct sensor_device_attribute fan_input[] = {
329 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
330 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
331 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
332 };
333 static struct sensor_device_attribute fan_status[] = {
334 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
335 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
336 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
337 };
338 static struct sensor_device_attribute fan_div[] = {
339 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
340 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
341 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
342 };
343 static struct sensor_device_attribute fan_min[] = {
344 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
345 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
346 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
347 };
348
349 #define FAN_UNIT_ATTRS(X) \
350 { &fan_input[X].dev_attr.attr, \
351 &fan_status[X].dev_attr.attr, \
352 &fan_div[X].dev_attr.attr, \
353 &fan_min[X].dev_attr.attr, \
354 NULL \
355 }
356
357 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
358 char *buf)
359 {
360 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
361 struct pc87360_data *data = pc87360_update_device(dev);
362 return sprintf(buf, "%u\n",
363 PWM_FROM_REG(data->pwm[attr->index],
364 FAN_CONFIG_INVERT(data->fan_conf,
365 attr->index)));
366 }
367 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
368 const char *buf, size_t count)
369 {
370 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
371 struct pc87360_data *data = dev_get_drvdata(dev);
372 long val;
373 int err;
374
375 err = kstrtol(buf, 10, &val);
376 if (err)
377 return err;
378
379 mutex_lock(&data->update_lock);
380 data->pwm[attr->index] = PWM_TO_REG(val,
381 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
382 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
383 data->pwm[attr->index]);
384 mutex_unlock(&data->update_lock);
385 return count;
386 }
387
388 static struct sensor_device_attribute pwm[] = {
389 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
390 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
391 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
392 };
393
394 static struct attribute *pc8736x_fan_attr[][5] = {
395 FAN_UNIT_ATTRS(0),
396 FAN_UNIT_ATTRS(1),
397 FAN_UNIT_ATTRS(2)
398 };
399
400 static const struct attribute_group pc8736x_fan_attr_group[] = {
401 { .attrs = pc8736x_fan_attr[0], },
402 { .attrs = pc8736x_fan_attr[1], },
403 { .attrs = pc8736x_fan_attr[2], },
404 };
405
406 static ssize_t show_in_input(struct device *dev,
407 struct device_attribute *devattr, char *buf)
408 {
409 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
410 struct pc87360_data *data = pc87360_update_device(dev);
411 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
412 data->in_vref));
413 }
414 static ssize_t show_in_min(struct device *dev,
415 struct device_attribute *devattr, char *buf)
416 {
417 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
418 struct pc87360_data *data = pc87360_update_device(dev);
419 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
420 data->in_vref));
421 }
422 static ssize_t show_in_max(struct device *dev,
423 struct device_attribute *devattr, char *buf)
424 {
425 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
426 struct pc87360_data *data = pc87360_update_device(dev);
427 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
428 data->in_vref));
429 }
430 static ssize_t show_in_status(struct device *dev,
431 struct device_attribute *devattr, char *buf)
432 {
433 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
434 struct pc87360_data *data = pc87360_update_device(dev);
435 return sprintf(buf, "%u\n", data->in_status[attr->index]);
436 }
437 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr,
438 const char *buf, size_t count)
439 {
440 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
441 struct pc87360_data *data = dev_get_drvdata(dev);
442 long val;
443 int err;
444
445 err = kstrtol(buf, 10, &val);
446 if (err)
447 return err;
448
449 mutex_lock(&data->update_lock);
450 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
451 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
452 data->in_min[attr->index]);
453 mutex_unlock(&data->update_lock);
454 return count;
455 }
456 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr,
457 const char *buf, size_t count)
458 {
459 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
460 struct pc87360_data *data = dev_get_drvdata(dev);
461 long val;
462 int err;
463
464 err = kstrtol(buf, 10, &val);
465 if (err)
466 return err;
467
468 mutex_lock(&data->update_lock);
469 data->in_max[attr->index] = IN_TO_REG(val,
470 data->in_vref);
471 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
472 data->in_max[attr->index]);
473 mutex_unlock(&data->update_lock);
474 return count;
475 }
476
477 static struct sensor_device_attribute in_input[] = {
478 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
479 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
480 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
481 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
482 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
483 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
484 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
485 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
486 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
487 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
488 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
489 };
490 static struct sensor_device_attribute in_status[] = {
491 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
492 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
493 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
494 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
495 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
496 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
497 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
498 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
499 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
500 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
501 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
502 };
503 static struct sensor_device_attribute in_min[] = {
504 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
505 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
506 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
507 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
508 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
509 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
510 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
511 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
512 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
513 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
514 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
515 };
516 static struct sensor_device_attribute in_max[] = {
517 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
518 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
519 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
520 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
521 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
522 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
523 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
524 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
525 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
526 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
527 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
528 };
529
530 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
531 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
532 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
533 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
534
535 /*
536 * show_in_min/max_alarm() reads data from the per-channel status
537 * register (sec 11.5.12), not the vin event status registers (sec
538 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
539 */
540
541 static ssize_t show_in_min_alarm(struct device *dev,
542 struct device_attribute *devattr, char *buf)
543 {
544 struct pc87360_data *data = pc87360_update_device(dev);
545 unsigned nr = to_sensor_dev_attr(devattr)->index;
546
547 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
548 }
549 static ssize_t show_in_max_alarm(struct device *dev,
550 struct device_attribute *devattr, char *buf)
551 {
552 struct pc87360_data *data = pc87360_update_device(dev);
553 unsigned nr = to_sensor_dev_attr(devattr)->index;
554
555 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
556 }
557
558 static struct sensor_device_attribute in_min_alarm[] = {
559 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
560 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
561 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
562 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
563 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
564 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
565 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
566 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
567 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
568 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
569 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
570 };
571 static struct sensor_device_attribute in_max_alarm[] = {
572 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
573 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
574 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
575 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
576 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
577 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
578 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
579 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
580 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
581 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
582 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
583 };
584
585 #define VIN_UNIT_ATTRS(X) \
586 &in_input[X].dev_attr.attr, \
587 &in_status[X].dev_attr.attr, \
588 &in_min[X].dev_attr.attr, \
589 &in_max[X].dev_attr.attr, \
590 &in_min_alarm[X].dev_attr.attr, \
591 &in_max_alarm[X].dev_attr.attr
592
593 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
594 char *buf)
595 {
596 struct pc87360_data *data = pc87360_update_device(dev);
597 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
598 }
599 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
600
601 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr,
602 char *buf)
603 {
604 struct pc87360_data *data = dev_get_drvdata(dev);
605 return sprintf(buf, "%u\n", data->vrm);
606 }
607 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
608 const char *buf, size_t count)
609 {
610 struct pc87360_data *data = dev_get_drvdata(dev);
611 unsigned long val;
612 int err;
613
614 err = kstrtoul(buf, 10, &val);
615 if (err)
616 return err;
617
618 if (val > 255)
619 return -EINVAL;
620
621 data->vrm = val;
622 return count;
623 }
624 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
625
626 static ssize_t show_in_alarms(struct device *dev,
627 struct device_attribute *attr, char *buf)
628 {
629 struct pc87360_data *data = pc87360_update_device(dev);
630 return sprintf(buf, "%u\n", data->in_alarms);
631 }
632 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
633
634 static struct attribute *pc8736x_vin_attr_array[] = {
635 VIN_UNIT_ATTRS(0),
636 VIN_UNIT_ATTRS(1),
637 VIN_UNIT_ATTRS(2),
638 VIN_UNIT_ATTRS(3),
639 VIN_UNIT_ATTRS(4),
640 VIN_UNIT_ATTRS(5),
641 VIN_UNIT_ATTRS(6),
642 VIN_UNIT_ATTRS(7),
643 VIN_UNIT_ATTRS(8),
644 VIN_UNIT_ATTRS(9),
645 VIN_UNIT_ATTRS(10),
646 &dev_attr_cpu0_vid.attr,
647 &dev_attr_vrm.attr,
648 &dev_attr_alarms_in.attr,
649 NULL
650 };
651 static const struct attribute_group pc8736x_vin_group = {
652 .attrs = pc8736x_vin_attr_array,
653 };
654
655 static ssize_t show_therm_input(struct device *dev,
656 struct device_attribute *devattr, char *buf)
657 {
658 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
659 struct pc87360_data *data = pc87360_update_device(dev);
660 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
661 data->in_vref));
662 }
663 static ssize_t show_therm_min(struct device *dev,
664 struct device_attribute *devattr, char *buf)
665 {
666 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
667 struct pc87360_data *data = pc87360_update_device(dev);
668 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
669 data->in_vref));
670 }
671 static ssize_t show_therm_max(struct device *dev,
672 struct device_attribute *devattr, char *buf)
673 {
674 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
675 struct pc87360_data *data = pc87360_update_device(dev);
676 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
677 data->in_vref));
678 }
679 static ssize_t show_therm_crit(struct device *dev,
680 struct device_attribute *devattr, char *buf)
681 {
682 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
683 struct pc87360_data *data = pc87360_update_device(dev);
684 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
685 data->in_vref));
686 }
687 static ssize_t show_therm_status(struct device *dev,
688 struct device_attribute *devattr, char *buf)
689 {
690 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
691 struct pc87360_data *data = pc87360_update_device(dev);
692 return sprintf(buf, "%u\n", data->in_status[attr->index]);
693 }
694
695 static ssize_t set_therm_min(struct device *dev,
696 struct device_attribute *devattr,
697 const char *buf, size_t count)
698 {
699 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
700 struct pc87360_data *data = dev_get_drvdata(dev);
701 long val;
702 int err;
703
704 err = kstrtol(buf, 10, &val);
705 if (err)
706 return err;
707
708 mutex_lock(&data->update_lock);
709 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
710 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
711 data->in_min[attr->index]);
712 mutex_unlock(&data->update_lock);
713 return count;
714 }
715
716 static ssize_t set_therm_max(struct device *dev,
717 struct device_attribute *devattr,
718 const char *buf, size_t count)
719 {
720 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
721 struct pc87360_data *data = dev_get_drvdata(dev);
722 long val;
723 int err;
724
725 err = kstrtol(buf, 10, &val);
726 if (err)
727 return err;
728
729 mutex_lock(&data->update_lock);
730 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
731 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
732 data->in_max[attr->index]);
733 mutex_unlock(&data->update_lock);
734 return count;
735 }
736 static ssize_t set_therm_crit(struct device *dev,
737 struct device_attribute *devattr,
738 const char *buf, size_t count)
739 {
740 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
741 struct pc87360_data *data = dev_get_drvdata(dev);
742 long val;
743 int err;
744
745 err = kstrtol(buf, 10, &val);
746 if (err)
747 return err;
748
749 mutex_lock(&data->update_lock);
750 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
751 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
752 data->in_crit[attr->index-11]);
753 mutex_unlock(&data->update_lock);
754 return count;
755 }
756
757 /*
758 * the +11 term below reflects the fact that VLM units 11,12,13 are
759 * used in the chip to measure voltage across the thermistors
760 */
761 static struct sensor_device_attribute therm_input[] = {
762 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11),
763 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11),
764 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11),
765 };
766 static struct sensor_device_attribute therm_status[] = {
767 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11),
768 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11),
769 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11),
770 };
771 static struct sensor_device_attribute therm_min[] = {
772 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
773 show_therm_min, set_therm_min, 0 + 11),
774 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
775 show_therm_min, set_therm_min, 1 + 11),
776 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
777 show_therm_min, set_therm_min, 2 + 11),
778 };
779 static struct sensor_device_attribute therm_max[] = {
780 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
781 show_therm_max, set_therm_max, 0 + 11),
782 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
783 show_therm_max, set_therm_max, 1 + 11),
784 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
785 show_therm_max, set_therm_max, 2 + 11),
786 };
787 static struct sensor_device_attribute therm_crit[] = {
788 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
789 show_therm_crit, set_therm_crit, 0 + 11),
790 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
791 show_therm_crit, set_therm_crit, 1 + 11),
792 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
793 show_therm_crit, set_therm_crit, 2 + 11),
794 };
795
796 /*
797 * show_therm_min/max_alarm() reads data from the per-channel voltage
798 * status register (sec 11.5.12)
799 */
800
801 static ssize_t show_therm_min_alarm(struct device *dev,
802 struct device_attribute *devattr, char *buf)
803 {
804 struct pc87360_data *data = pc87360_update_device(dev);
805 unsigned nr = to_sensor_dev_attr(devattr)->index;
806
807 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
808 }
809 static ssize_t show_therm_max_alarm(struct device *dev,
810 struct device_attribute *devattr, char *buf)
811 {
812 struct pc87360_data *data = pc87360_update_device(dev);
813 unsigned nr = to_sensor_dev_attr(devattr)->index;
814
815 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
816 }
817 static ssize_t show_therm_crit_alarm(struct device *dev,
818 struct device_attribute *devattr, char *buf)
819 {
820 struct pc87360_data *data = pc87360_update_device(dev);
821 unsigned nr = to_sensor_dev_attr(devattr)->index;
822
823 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
824 }
825
826 static struct sensor_device_attribute therm_min_alarm[] = {
827 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
828 show_therm_min_alarm, NULL, 0 + 11),
829 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
830 show_therm_min_alarm, NULL, 1 + 11),
831 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
832 show_therm_min_alarm, NULL, 2 + 11),
833 };
834 static struct sensor_device_attribute therm_max_alarm[] = {
835 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
836 show_therm_max_alarm, NULL, 0 + 11),
837 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
838 show_therm_max_alarm, NULL, 1 + 11),
839 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
840 show_therm_max_alarm, NULL, 2 + 11),
841 };
842 static struct sensor_device_attribute therm_crit_alarm[] = {
843 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
844 show_therm_crit_alarm, NULL, 0 + 11),
845 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
846 show_therm_crit_alarm, NULL, 1 + 11),
847 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
848 show_therm_crit_alarm, NULL, 2 + 11),
849 };
850
851 #define THERM_UNIT_ATTRS(X) \
852 &therm_input[X].dev_attr.attr, \
853 &therm_status[X].dev_attr.attr, \
854 &therm_min[X].dev_attr.attr, \
855 &therm_max[X].dev_attr.attr, \
856 &therm_crit[X].dev_attr.attr, \
857 &therm_min_alarm[X].dev_attr.attr, \
858 &therm_max_alarm[X].dev_attr.attr, \
859 &therm_crit_alarm[X].dev_attr.attr
860
861 static struct attribute *pc8736x_therm_attr_array[] = {
862 THERM_UNIT_ATTRS(0),
863 THERM_UNIT_ATTRS(1),
864 THERM_UNIT_ATTRS(2),
865 NULL
866 };
867 static const struct attribute_group pc8736x_therm_group = {
868 .attrs = pc8736x_therm_attr_array,
869 };
870
871 static ssize_t show_temp_input(struct device *dev,
872 struct device_attribute *devattr, char *buf)
873 {
874 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
875 struct pc87360_data *data = pc87360_update_device(dev);
876 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
877 }
878
879 static ssize_t show_temp_min(struct device *dev,
880 struct device_attribute *devattr, char *buf)
881 {
882 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
883 struct pc87360_data *data = pc87360_update_device(dev);
884 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
885 }
886
887 static ssize_t show_temp_max(struct device *dev,
888 struct device_attribute *devattr, char *buf)
889 {
890 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
891 struct pc87360_data *data = pc87360_update_device(dev);
892 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
893 }
894
895 static ssize_t show_temp_crit(struct device *dev,
896 struct device_attribute *devattr, char *buf)
897 {
898 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
899 struct pc87360_data *data = pc87360_update_device(dev);
900 return sprintf(buf, "%d\n",
901 TEMP_FROM_REG(data->temp_crit[attr->index]));
902 }
903
904 static ssize_t show_temp_status(struct device *dev,
905 struct device_attribute *devattr, char *buf)
906 {
907 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
908 struct pc87360_data *data = pc87360_update_device(dev);
909 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
910 }
911
912 static ssize_t set_temp_min(struct device *dev,
913 struct device_attribute *devattr,
914 const char *buf, size_t count)
915 {
916 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
917 struct pc87360_data *data = dev_get_drvdata(dev);
918 long val;
919 int err;
920
921 err = kstrtol(buf, 10, &val);
922 if (err)
923 return err;
924
925 mutex_lock(&data->update_lock);
926 data->temp_min[attr->index] = TEMP_TO_REG(val);
927 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
928 data->temp_min[attr->index]);
929 mutex_unlock(&data->update_lock);
930 return count;
931 }
932
933 static ssize_t set_temp_max(struct device *dev,
934 struct device_attribute *devattr,
935 const char *buf, size_t count)
936 {
937 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
938 struct pc87360_data *data = dev_get_drvdata(dev);
939 long val;
940 int err;
941
942 err = kstrtol(buf, 10, &val);
943 if (err)
944 return err;
945
946 mutex_lock(&data->update_lock);
947 data->temp_max[attr->index] = TEMP_TO_REG(val);
948 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
949 data->temp_max[attr->index]);
950 mutex_unlock(&data->update_lock);
951 return count;
952 }
953
954 static ssize_t set_temp_crit(struct device *dev,
955 struct device_attribute *devattr, const char *buf,
956 size_t count)
957 {
958 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
959 struct pc87360_data *data = dev_get_drvdata(dev);
960 long val;
961 int err;
962
963 err = kstrtol(buf, 10, &val);
964 if (err)
965 return err;
966
967 mutex_lock(&data->update_lock);
968 data->temp_crit[attr->index] = TEMP_TO_REG(val);
969 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
970 data->temp_crit[attr->index]);
971 mutex_unlock(&data->update_lock);
972 return count;
973 }
974
975 static struct sensor_device_attribute temp_input[] = {
976 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
977 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
978 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
979 };
980 static struct sensor_device_attribute temp_status[] = {
981 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
982 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
983 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
984 };
985 static struct sensor_device_attribute temp_min[] = {
986 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
987 show_temp_min, set_temp_min, 0),
988 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
989 show_temp_min, set_temp_min, 1),
990 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
991 show_temp_min, set_temp_min, 2),
992 };
993 static struct sensor_device_attribute temp_max[] = {
994 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
995 show_temp_max, set_temp_max, 0),
996 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
997 show_temp_max, set_temp_max, 1),
998 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
999 show_temp_max, set_temp_max, 2),
1000 };
1001 static struct sensor_device_attribute temp_crit[] = {
1002 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
1003 show_temp_crit, set_temp_crit, 0),
1004 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
1005 show_temp_crit, set_temp_crit, 1),
1006 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
1007 show_temp_crit, set_temp_crit, 2),
1008 };
1009
1010 static ssize_t show_temp_alarms(struct device *dev,
1011 struct device_attribute *attr, char *buf)
1012 {
1013 struct pc87360_data *data = pc87360_update_device(dev);
1014 return sprintf(buf, "%u\n", data->temp_alarms);
1015 }
1016
1017 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
1018
1019 /*
1020 * show_temp_min/max_alarm() reads data from the per-channel status
1021 * register (sec 12.3.7), not the temp event status registers (sec
1022 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1023 */
1024
1025 static ssize_t show_temp_min_alarm(struct device *dev,
1026 struct device_attribute *devattr, char *buf)
1027 {
1028 struct pc87360_data *data = pc87360_update_device(dev);
1029 unsigned nr = to_sensor_dev_attr(devattr)->index;
1030
1031 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1032 }
1033
1034 static ssize_t show_temp_max_alarm(struct device *dev,
1035 struct device_attribute *devattr, char *buf)
1036 {
1037 struct pc87360_data *data = pc87360_update_device(dev);
1038 unsigned nr = to_sensor_dev_attr(devattr)->index;
1039
1040 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1041 }
1042
1043 static ssize_t show_temp_crit_alarm(struct device *dev,
1044 struct device_attribute *devattr, char *buf)
1045 {
1046 struct pc87360_data *data = pc87360_update_device(dev);
1047 unsigned nr = to_sensor_dev_attr(devattr)->index;
1048
1049 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1050 }
1051
1052 static struct sensor_device_attribute temp_min_alarm[] = {
1053 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
1054 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
1055 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
1056 };
1057
1058 static struct sensor_device_attribute temp_max_alarm[] = {
1059 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
1060 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
1061 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
1062 };
1063
1064 static struct sensor_device_attribute temp_crit_alarm[] = {
1065 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
1066 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
1067 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
1068 };
1069
1070 #define TEMP_FAULT 0x40 /* open diode */
1071 static ssize_t show_temp_fault(struct device *dev,
1072 struct device_attribute *devattr, char *buf)
1073 {
1074 struct pc87360_data *data = pc87360_update_device(dev);
1075 unsigned nr = to_sensor_dev_attr(devattr)->index;
1076
1077 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1078 }
1079 static struct sensor_device_attribute temp_fault[] = {
1080 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
1081 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
1082 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
1083 };
1084
1085 #define TEMP_UNIT_ATTRS(X) \
1086 { &temp_input[X].dev_attr.attr, \
1087 &temp_status[X].dev_attr.attr, \
1088 &temp_min[X].dev_attr.attr, \
1089 &temp_max[X].dev_attr.attr, \
1090 &temp_crit[X].dev_attr.attr, \
1091 &temp_min_alarm[X].dev_attr.attr, \
1092 &temp_max_alarm[X].dev_attr.attr, \
1093 &temp_crit_alarm[X].dev_attr.attr, \
1094 &temp_fault[X].dev_attr.attr, \
1095 NULL \
1096 }
1097
1098 static struct attribute *pc8736x_temp_attr[][10] = {
1099 TEMP_UNIT_ATTRS(0),
1100 TEMP_UNIT_ATTRS(1),
1101 TEMP_UNIT_ATTRS(2)
1102 };
1103
1104 static const struct attribute_group pc8736x_temp_attr_group[] = {
1105 { .attrs = pc8736x_temp_attr[0] },
1106 { .attrs = pc8736x_temp_attr[1] },
1107 { .attrs = pc8736x_temp_attr[2] }
1108 };
1109
1110 static ssize_t show_name(struct device *dev,
1111 struct device_attribute *devattr, char *buf)
1112 {
1113 struct pc87360_data *data = dev_get_drvdata(dev);
1114 return sprintf(buf, "%s\n", data->name);
1115 }
1116
1117 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1118
1119 /*
1120 * Device detection, registration and update
1121 */
1122
1123 static int __init pc87360_find(int sioaddr, u8 *devid,
1124 unsigned short *addresses)
1125 {
1126 u16 val;
1127 int i;
1128 int nrdev; /* logical device count */
1129
1130 /* No superio_enter */
1131
1132 /* Identify device */
1133 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1134 switch (val) {
1135 case 0xE1: /* PC87360 */
1136 case 0xE8: /* PC87363 */
1137 case 0xE4: /* PC87364 */
1138 nrdev = 1;
1139 break;
1140 case 0xE5: /* PC87365 */
1141 case 0xE9: /* PC87366 */
1142 nrdev = 3;
1143 break;
1144 default:
1145 superio_exit(sioaddr);
1146 return -ENODEV;
1147 }
1148 /* Remember the device id */
1149 *devid = val;
1150
1151 for (i = 0; i < nrdev; i++) {
1152 /* select logical device */
1153 superio_outb(sioaddr, DEV, logdev[i]);
1154
1155 val = superio_inb(sioaddr, ACT);
1156 if (!(val & 0x01)) {
1157 pr_info("Device 0x%02x not activated\n", logdev[i]);
1158 continue;
1159 }
1160
1161 val = (superio_inb(sioaddr, BASE) << 8)
1162 | superio_inb(sioaddr, BASE + 1);
1163 if (!val) {
1164 pr_info("Base address not set for device 0x%02x\n",
1165 logdev[i]);
1166 continue;
1167 }
1168
1169 addresses[i] = val;
1170
1171 if (i == 0) { /* Fans */
1172 confreg[0] = superio_inb(sioaddr, 0xF0);
1173 confreg[1] = superio_inb(sioaddr, 0xF1);
1174
1175 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1176 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1177 (confreg[0] >> 4) & 1);
1178 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1179 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1180 (confreg[0] >> 7) & 1);
1181 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1182 confreg[1] & 1, (confreg[1] >> 1) & 1,
1183 (confreg[1] >> 2) & 1);
1184 } else if (i == 1) { /* Voltages */
1185 /* Are we using thermistors? */
1186 if (*devid == 0xE9) { /* PC87366 */
1187 /*
1188 * These registers are not logical-device
1189 * specific, just that we won't need them if
1190 * we don't use the VLM device
1191 */
1192 confreg[2] = superio_inb(sioaddr, 0x2B);
1193 confreg[3] = superio_inb(sioaddr, 0x25);
1194
1195 if (confreg[2] & 0x40) {
1196 pr_info("Using thermistors for temperature monitoring\n");
1197 }
1198 if (confreg[3] & 0xE0) {
1199 pr_info("VID inputs routed (mode %u)\n",
1200 confreg[3] >> 5);
1201 }
1202 }
1203 }
1204 }
1205
1206 superio_exit(sioaddr);
1207 return 0;
1208 }
1209
1210 static void pc87360_remove_files(struct device *dev)
1211 {
1212 int i;
1213
1214 device_remove_file(dev, &dev_attr_name);
1215 device_remove_file(dev, &dev_attr_alarms_temp);
1216 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1217 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1218 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1219 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1220 device_remove_file(dev, &pwm[i].dev_attr);
1221 }
1222 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1223 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1224 }
1225
1226 static int pc87360_probe(struct platform_device *pdev)
1227 {
1228 int i;
1229 struct pc87360_data *data;
1230 int err = 0;
1231 const char *name;
1232 int use_thermistors = 0;
1233 struct device *dev = &pdev->dev;
1234
1235 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1236 if (!data)
1237 return -ENOMEM;
1238
1239 switch (devid) {
1240 default:
1241 name = "pc87360";
1242 data->fannr = 2;
1243 break;
1244 case 0xe8:
1245 name = "pc87363";
1246 data->fannr = 2;
1247 break;
1248 case 0xe4:
1249 name = "pc87364";
1250 data->fannr = 3;
1251 break;
1252 case 0xe5:
1253 name = "pc87365";
1254 data->fannr = extra_isa[0] ? 3 : 0;
1255 data->innr = extra_isa[1] ? 11 : 0;
1256 data->tempnr = extra_isa[2] ? 2 : 0;
1257 break;
1258 case 0xe9:
1259 name = "pc87366";
1260 data->fannr = extra_isa[0] ? 3 : 0;
1261 data->innr = extra_isa[1] ? 14 : 0;
1262 data->tempnr = extra_isa[2] ? 3 : 0;
1263 break;
1264 }
1265
1266 data->name = name;
1267 mutex_init(&data->lock);
1268 mutex_init(&data->update_lock);
1269 platform_set_drvdata(pdev, data);
1270
1271 for (i = 0; i < LDNI_MAX; i++) {
1272 data->address[i] = extra_isa[i];
1273 if (data->address[i]
1274 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1275 pc87360_driver.driver.name)) {
1276 dev_err(dev,
1277 "Region 0x%x-0x%x already in use!\n",
1278 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
1279 return -EBUSY;
1280 }
1281 }
1282
1283 /* Retrieve the fans configuration from Super-I/O space */
1284 if (data->fannr)
1285 data->fan_conf = confreg[0] | (confreg[1] << 8);
1286
1287 /*
1288 * Use the correct reference voltage
1289 * Unless both the VLM and the TMS logical devices agree to
1290 * use an external Vref, the internal one is used.
1291 */
1292 if (data->innr) {
1293 i = pc87360_read_value(data, LD_IN, NO_BANK,
1294 PC87365_REG_IN_CONFIG);
1295 if (data->tempnr) {
1296 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1297 PC87365_REG_TEMP_CONFIG);
1298 }
1299 data->in_vref = (i&0x02) ? 3025 : 2966;
1300 dev_dbg(dev, "Using %s reference voltage\n",
1301 (i&0x02) ? "external" : "internal");
1302
1303 data->vid_conf = confreg[3];
1304 data->vrm = vid_which_vrm();
1305 }
1306
1307 /* Fan clock dividers may be needed before any data is read */
1308 for (i = 0; i < data->fannr; i++) {
1309 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1310 data->fan_status[i] = pc87360_read_value(data,
1311 LD_FAN, NO_BANK,
1312 PC87360_REG_FAN_STATUS(i));
1313 }
1314
1315 if (init > 0) {
1316 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1317 use_thermistors = confreg[2] & 0x40;
1318
1319 pc87360_init_device(pdev, use_thermistors);
1320 }
1321
1322 /* Register all-or-nothing sysfs groups */
1323
1324 if (data->innr) {
1325 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1326 if (err)
1327 goto error;
1328 }
1329
1330 if (data->innr == 14) {
1331 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1332 if (err)
1333 goto error;
1334 }
1335
1336 /* create device attr-files for varying sysfs groups */
1337
1338 if (data->tempnr) {
1339 for (i = 0; i < data->tempnr; i++) {
1340 err = sysfs_create_group(&dev->kobj,
1341 &pc8736x_temp_attr_group[i]);
1342 if (err)
1343 goto error;
1344 }
1345 err = device_create_file(dev, &dev_attr_alarms_temp);
1346 if (err)
1347 goto error;
1348 }
1349
1350 for (i = 0; i < data->fannr; i++) {
1351 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1352 err = sysfs_create_group(&dev->kobj,
1353 &pc8736x_fan_attr_group[i]);
1354 if (err)
1355 goto error;
1356 }
1357 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1358 err = device_create_file(dev, &pwm[i].dev_attr);
1359 if (err)
1360 goto error;
1361 }
1362 }
1363
1364 err = device_create_file(dev, &dev_attr_name);
1365 if (err)
1366 goto error;
1367
1368 data->hwmon_dev = hwmon_device_register(dev);
1369 if (IS_ERR(data->hwmon_dev)) {
1370 err = PTR_ERR(data->hwmon_dev);
1371 goto error;
1372 }
1373 return 0;
1374
1375 error:
1376 pc87360_remove_files(dev);
1377 return err;
1378 }
1379
1380 static int pc87360_remove(struct platform_device *pdev)
1381 {
1382 struct pc87360_data *data = platform_get_drvdata(pdev);
1383
1384 hwmon_device_unregister(data->hwmon_dev);
1385 pc87360_remove_files(&pdev->dev);
1386
1387 return 0;
1388 }
1389
1390 /*
1391 * ldi is the logical device index
1392 * bank is for voltages and temperatures only
1393 */
1394 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1395 u8 reg)
1396 {
1397 int res;
1398
1399 mutex_lock(&(data->lock));
1400 if (bank != NO_BANK)
1401 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1402 res = inb_p(data->address[ldi] + reg);
1403 mutex_unlock(&(data->lock));
1404
1405 return res;
1406 }
1407
1408 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1409 u8 reg, u8 value)
1410 {
1411 mutex_lock(&(data->lock));
1412 if (bank != NO_BANK)
1413 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1414 outb_p(value, data->address[ldi] + reg);
1415 mutex_unlock(&(data->lock));
1416 }
1417
1418 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1419 #define CHAN_CNVRTD 0x80 /* new data ready */
1420 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1421 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1422 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1423
1424 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1425 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1426 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1427
1428 static void pc87360_init_device(struct platform_device *pdev,
1429 int use_thermistors)
1430 {
1431 struct pc87360_data *data = platform_get_drvdata(pdev);
1432 int i, nr;
1433 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1434 const u8 init_temp[3] = { 2, 2, 1 };
1435 u8 reg;
1436
1437 if (init >= 2 && data->innr) {
1438 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1439 PC87365_REG_IN_CONVRATE);
1440 dev_info(&pdev->dev,
1441 "VLM conversion set to 1s period, 160us delay\n");
1442 pc87360_write_value(data, LD_IN, NO_BANK,
1443 PC87365_REG_IN_CONVRATE,
1444 (reg & 0xC0) | 0x11);
1445 }
1446
1447 nr = data->innr < 11 ? data->innr : 11;
1448 for (i = 0; i < nr; i++) {
1449 reg = pc87360_read_value(data, LD_IN, i,
1450 PC87365_REG_IN_STATUS);
1451 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1452 if (init >= init_in[i]) {
1453 /* Forcibly enable voltage channel */
1454 if (!(reg & CHAN_ENA)) {
1455 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1456 i);
1457 pc87360_write_value(data, LD_IN, i,
1458 PC87365_REG_IN_STATUS,
1459 (reg & 0x68) | 0x87);
1460 }
1461 }
1462 }
1463
1464 /*
1465 * We can't blindly trust the Super-I/O space configuration bit,
1466 * most BIOS won't set it properly
1467 */
1468 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1469 for (i = 11; i < data->innr; i++) {
1470 reg = pc87360_read_value(data, LD_IN, i,
1471 PC87365_REG_TEMP_STATUS);
1472 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1473 /* thermistors are temp[4-6], measured on vin[11-14] */
1474 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1475 }
1476 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1477
1478 i = use_thermistors ? 2 : 0;
1479 for (; i < data->tempnr; i++) {
1480 reg = pc87360_read_value(data, LD_TEMP, i,
1481 PC87365_REG_TEMP_STATUS);
1482 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1483 if (init >= init_temp[i]) {
1484 /* Forcibly enable temperature channel */
1485 if (!(reg & CHAN_ENA)) {
1486 dev_dbg(&pdev->dev,
1487 "Forcibly enabling temp%d\n", i + 1);
1488 pc87360_write_value(data, LD_TEMP, i,
1489 PC87365_REG_TEMP_STATUS,
1490 0xCF);
1491 }
1492 }
1493 }
1494
1495 if (use_thermistors) {
1496 for (i = 11; i < data->innr; i++) {
1497 if (init >= init_in[i]) {
1498 /*
1499 * The pin may already be used by thermal
1500 * diodes
1501 */
1502 reg = pc87360_read_value(data, LD_TEMP,
1503 (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1504 if (reg & CHAN_ENA) {
1505 dev_dbg(&pdev->dev,
1506 "Skipping temp%d, pin already in use by temp%d\n",
1507 i - 7, (i - 11) / 2);
1508 continue;
1509 }
1510
1511 /* Forcibly enable thermistor channel */
1512 reg = pc87360_read_value(data, LD_IN, i,
1513 PC87365_REG_IN_STATUS);
1514 if (!(reg & CHAN_ENA)) {
1515 dev_dbg(&pdev->dev,
1516 "Forcibly enabling temp%d\n",
1517 i - 7);
1518 pc87360_write_value(data, LD_IN, i,
1519 PC87365_REG_TEMP_STATUS,
1520 (reg & 0x60) | 0x8F);
1521 }
1522 }
1523 }
1524 }
1525
1526 if (data->innr) {
1527 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1528 PC87365_REG_IN_CONFIG);
1529 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1530 if (reg & CHAN_ENA) {
1531 dev_dbg(&pdev->dev,
1532 "Forcibly enabling monitoring (VLM)\n");
1533 pc87360_write_value(data, LD_IN, NO_BANK,
1534 PC87365_REG_IN_CONFIG,
1535 reg & 0xFE);
1536 }
1537 }
1538
1539 if (data->tempnr) {
1540 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1541 PC87365_REG_TEMP_CONFIG);
1542 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1543 if (reg & CHAN_ENA) {
1544 dev_dbg(&pdev->dev,
1545 "Forcibly enabling monitoring (TMS)\n");
1546 pc87360_write_value(data, LD_TEMP, NO_BANK,
1547 PC87365_REG_TEMP_CONFIG,
1548 reg & 0xFE);
1549 }
1550
1551 if (init >= 2) {
1552 /* Chip config as documented by National Semi. */
1553 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1554 /*
1555 * We voluntarily omit the bank here, in case the
1556 * sequence itself matters. It shouldn't be a problem,
1557 * since nobody else is supposed to access the
1558 * device at that point.
1559 */
1560 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1561 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1562 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1563 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1564 }
1565 }
1566 }
1567
1568 static void pc87360_autodiv(struct device *dev, int nr)
1569 {
1570 struct pc87360_data *data = dev_get_drvdata(dev);
1571 u8 old_min = data->fan_min[nr];
1572
1573 /* Increase clock divider if needed and possible */
1574 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1575 || (data->fan[nr] >= 224)) { /* next to overflow */
1576 if ((data->fan_status[nr] & 0x60) != 0x60) {
1577 data->fan_status[nr] += 0x20;
1578 data->fan_min[nr] >>= 1;
1579 data->fan[nr] >>= 1;
1580 dev_dbg(dev,
1581 "Increasing clock divider to %d for fan %d\n",
1582 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1583 }
1584 } else {
1585 /* Decrease clock divider if possible */
1586 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1587 && data->fan[nr] < 85 /* bad accuracy */
1588 && (data->fan_status[nr] & 0x60) != 0x00) {
1589 data->fan_status[nr] -= 0x20;
1590 data->fan_min[nr] <<= 1;
1591 data->fan[nr] <<= 1;
1592 dev_dbg(dev,
1593 "Decreasing clock divider to %d for fan %d\n",
1594 FAN_DIV_FROM_REG(data->fan_status[nr]),
1595 nr + 1);
1596 }
1597 }
1598
1599 /* Write new fan min if it changed */
1600 if (old_min != data->fan_min[nr]) {
1601 pc87360_write_value(data, LD_FAN, NO_BANK,
1602 PC87360_REG_FAN_MIN(nr),
1603 data->fan_min[nr]);
1604 }
1605 }
1606
1607 static struct pc87360_data *pc87360_update_device(struct device *dev)
1608 {
1609 struct pc87360_data *data = dev_get_drvdata(dev);
1610 u8 i;
1611
1612 mutex_lock(&data->update_lock);
1613
1614 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1615 dev_dbg(dev, "Data update\n");
1616
1617 /* Fans */
1618 for (i = 0; i < data->fannr; i++) {
1619 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1620 data->fan_status[i] =
1621 pc87360_read_value(data, LD_FAN,
1622 NO_BANK, PC87360_REG_FAN_STATUS(i));
1623 data->fan[i] = pc87360_read_value(data, LD_FAN,
1624 NO_BANK, PC87360_REG_FAN(i));
1625 data->fan_min[i] = pc87360_read_value(data,
1626 LD_FAN, NO_BANK,
1627 PC87360_REG_FAN_MIN(i));
1628 /* Change clock divider if needed */
1629 pc87360_autodiv(dev, i);
1630 /* Clear bits and write new divider */
1631 pc87360_write_value(data, LD_FAN, NO_BANK,
1632 PC87360_REG_FAN_STATUS(i),
1633 data->fan_status[i]);
1634 }
1635 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1636 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1637 NO_BANK, PC87360_REG_PWM(i));
1638 }
1639
1640 /* Voltages */
1641 for (i = 0; i < data->innr; i++) {
1642 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1643 PC87365_REG_IN_STATUS);
1644 /* Clear bits */
1645 pc87360_write_value(data, LD_IN, i,
1646 PC87365_REG_IN_STATUS,
1647 data->in_status[i]);
1648 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1649 data->in[i] = pc87360_read_value(data, LD_IN,
1650 i, PC87365_REG_IN);
1651 }
1652 if (data->in_status[i] & CHAN_ENA) {
1653 data->in_min[i] = pc87360_read_value(data,
1654 LD_IN, i,
1655 PC87365_REG_IN_MIN);
1656 data->in_max[i] = pc87360_read_value(data,
1657 LD_IN, i,
1658 PC87365_REG_IN_MAX);
1659 if (i >= 11)
1660 data->in_crit[i-11] =
1661 pc87360_read_value(data, LD_IN,
1662 i, PC87365_REG_TEMP_CRIT);
1663 }
1664 }
1665 if (data->innr) {
1666 data->in_alarms = pc87360_read_value(data, LD_IN,
1667 NO_BANK, PC87365_REG_IN_ALARMS1)
1668 | ((pc87360_read_value(data, LD_IN,
1669 NO_BANK, PC87365_REG_IN_ALARMS2)
1670 & 0x07) << 8);
1671 data->vid = (data->vid_conf & 0xE0) ?
1672 pc87360_read_value(data, LD_IN,
1673 NO_BANK, PC87365_REG_VID) : 0x1F;
1674 }
1675
1676 /* Temperatures */
1677 for (i = 0; i < data->tempnr; i++) {
1678 data->temp_status[i] = pc87360_read_value(data,
1679 LD_TEMP, i,
1680 PC87365_REG_TEMP_STATUS);
1681 /* Clear bits */
1682 pc87360_write_value(data, LD_TEMP, i,
1683 PC87365_REG_TEMP_STATUS,
1684 data->temp_status[i]);
1685 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1686 data->temp[i] = pc87360_read_value(data,
1687 LD_TEMP, i,
1688 PC87365_REG_TEMP);
1689 }
1690 if (data->temp_status[i] & CHAN_ENA) {
1691 data->temp_min[i] = pc87360_read_value(data,
1692 LD_TEMP, i,
1693 PC87365_REG_TEMP_MIN);
1694 data->temp_max[i] = pc87360_read_value(data,
1695 LD_TEMP, i,
1696 PC87365_REG_TEMP_MAX);
1697 data->temp_crit[i] = pc87360_read_value(data,
1698 LD_TEMP, i,
1699 PC87365_REG_TEMP_CRIT);
1700 }
1701 }
1702 if (data->tempnr) {
1703 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1704 NO_BANK, PC87365_REG_TEMP_ALARMS)
1705 & 0x3F;
1706 }
1707
1708 data->last_updated = jiffies;
1709 data->valid = 1;
1710 }
1711
1712 mutex_unlock(&data->update_lock);
1713
1714 return data;
1715 }
1716
1717 static int __init pc87360_device_add(unsigned short address)
1718 {
1719 struct resource res[3];
1720 int err, i, res_count;
1721
1722 pdev = platform_device_alloc("pc87360", address);
1723 if (!pdev) {
1724 err = -ENOMEM;
1725 pr_err("Device allocation failed\n");
1726 goto exit;
1727 }
1728
1729 memset(res, 0, 3 * sizeof(struct resource));
1730 res_count = 0;
1731 for (i = 0; i < 3; i++) {
1732 if (!extra_isa[i])
1733 continue;
1734 res[res_count].start = extra_isa[i];
1735 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1736 res[res_count].name = "pc87360",
1737 res[res_count].flags = IORESOURCE_IO,
1738
1739 err = acpi_check_resource_conflict(&res[res_count]);
1740 if (err)
1741 goto exit_device_put;
1742
1743 res_count++;
1744 }
1745
1746 err = platform_device_add_resources(pdev, res, res_count);
1747 if (err) {
1748 pr_err("Device resources addition failed (%d)\n", err);
1749 goto exit_device_put;
1750 }
1751
1752 err = platform_device_add(pdev);
1753 if (err) {
1754 pr_err("Device addition failed (%d)\n", err);
1755 goto exit_device_put;
1756 }
1757
1758 return 0;
1759
1760 exit_device_put:
1761 platform_device_put(pdev);
1762 exit:
1763 return err;
1764 }
1765
1766 static int __init pc87360_init(void)
1767 {
1768 int err, i;
1769 unsigned short address = 0;
1770
1771 if (pc87360_find(0x2e, &devid, extra_isa)
1772 && pc87360_find(0x4e, &devid, extra_isa)) {
1773 pr_warn("PC8736x not detected, module not inserted\n");
1774 return -ENODEV;
1775 }
1776
1777 /* Arbitrarily pick one of the addresses */
1778 for (i = 0; i < 3; i++) {
1779 if (extra_isa[i] != 0x0000) {
1780 address = extra_isa[i];
1781 break;
1782 }
1783 }
1784
1785 if (address == 0x0000) {
1786 pr_warn("No active logical device, module not inserted\n");
1787 return -ENODEV;
1788 }
1789
1790 err = platform_driver_register(&pc87360_driver);
1791 if (err)
1792 goto exit;
1793
1794 /* Sets global pdev as a side effect */
1795 err = pc87360_device_add(address);
1796 if (err)
1797 goto exit_driver;
1798
1799 return 0;
1800
1801 exit_driver:
1802 platform_driver_unregister(&pc87360_driver);
1803 exit:
1804 return err;
1805 }
1806
1807 static void __exit pc87360_exit(void)
1808 {
1809 platform_device_unregister(pdev);
1810 platform_driver_unregister(&pc87360_driver);
1811 }
1812
1813
1814 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1815 MODULE_DESCRIPTION("PC8736x hardware monitor");
1816 MODULE_LICENSE("GPL");
1817
1818 module_init(pc87360_init);
1819 module_exit(pc87360_exit);
Linux kernel - Deliverables
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