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pc87360.c
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1 /*
2  * pc87360.c - Part of lm_sensors, Linux kernel modules
3  * for hardware monitoring
4  * Copyright (C) 2004, 2007 Jean Delvare <[email protected]>
5  *
6  * Copied from smsc47m1.c:
7  * Copyright (C) 2002 Mark D. Studebaker <[email protected]>
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 __devexit 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 = __devexit_p(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  data->vrm = val;
619  return count;
620 }
621 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
622 
623 static ssize_t show_in_alarms(struct device *dev,
624  struct device_attribute *attr, char *buf)
625 {
626  struct pc87360_data *data = pc87360_update_device(dev);
627  return sprintf(buf, "%u\n", data->in_alarms);
628 }
629 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
630 
631 static struct attribute *pc8736x_vin_attr_array[] = {
632  VIN_UNIT_ATTRS(0),
633  VIN_UNIT_ATTRS(1),
634  VIN_UNIT_ATTRS(2),
635  VIN_UNIT_ATTRS(3),
636  VIN_UNIT_ATTRS(4),
637  VIN_UNIT_ATTRS(5),
638  VIN_UNIT_ATTRS(6),
639  VIN_UNIT_ATTRS(7),
640  VIN_UNIT_ATTRS(8),
641  VIN_UNIT_ATTRS(9),
642  VIN_UNIT_ATTRS(10),
643  &dev_attr_cpu0_vid.attr,
644  &dev_attr_vrm.attr,
645  &dev_attr_alarms_in.attr,
646  NULL
647 };
648 static const struct attribute_group pc8736x_vin_group = {
649  .attrs = pc8736x_vin_attr_array,
650 };
651 
652 static ssize_t show_therm_input(struct device *dev,
653  struct device_attribute *devattr, char *buf)
654 {
655  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
656  struct pc87360_data *data = pc87360_update_device(dev);
657  return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
658  data->in_vref));
659 }
660 static ssize_t show_therm_min(struct device *dev,
661  struct device_attribute *devattr, char *buf)
662 {
663  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
664  struct pc87360_data *data = pc87360_update_device(dev);
665  return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
666  data->in_vref));
667 }
668 static ssize_t show_therm_max(struct device *dev,
669  struct device_attribute *devattr, char *buf)
670 {
671  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
672  struct pc87360_data *data = pc87360_update_device(dev);
673  return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
674  data->in_vref));
675 }
676 static ssize_t show_therm_crit(struct device *dev,
677  struct device_attribute *devattr, char *buf)
678 {
679  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
680  struct pc87360_data *data = pc87360_update_device(dev);
681  return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
682  data->in_vref));
683 }
684 static ssize_t show_therm_status(struct device *dev,
685  struct device_attribute *devattr, char *buf)
686 {
687  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
688  struct pc87360_data *data = pc87360_update_device(dev);
689  return sprintf(buf, "%u\n", data->in_status[attr->index]);
690 }
691 
692 static ssize_t set_therm_min(struct device *dev,
693  struct device_attribute *devattr,
694  const char *buf, size_t count)
695 {
696  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
697  struct pc87360_data *data = dev_get_drvdata(dev);
698  long val;
699  int err;
700 
701  err = kstrtol(buf, 10, &val);
702  if (err)
703  return err;
704 
705  mutex_lock(&data->update_lock);
706  data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
707  pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
708  data->in_min[attr->index]);
709  mutex_unlock(&data->update_lock);
710  return count;
711 }
712 
713 static ssize_t set_therm_max(struct device *dev,
714  struct device_attribute *devattr,
715  const char *buf, size_t count)
716 {
717  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
718  struct pc87360_data *data = dev_get_drvdata(dev);
719  long val;
720  int err;
721 
722  err = kstrtol(buf, 10, &val);
723  if (err)
724  return err;
725 
726  mutex_lock(&data->update_lock);
727  data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
728  pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
729  data->in_max[attr->index]);
730  mutex_unlock(&data->update_lock);
731  return count;
732 }
733 static ssize_t set_therm_crit(struct device *dev,
734  struct device_attribute *devattr,
735  const char *buf, size_t count)
736 {
737  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
738  struct pc87360_data *data = dev_get_drvdata(dev);
739  long val;
740  int err;
741 
742  err = kstrtol(buf, 10, &val);
743  if (err)
744  return err;
745 
746  mutex_lock(&data->update_lock);
747  data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
748  pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
749  data->in_crit[attr->index-11]);
750  mutex_unlock(&data->update_lock);
751  return count;
752 }
753 
754 /*
755  * the +11 term below reflects the fact that VLM units 11,12,13 are
756  * used in the chip to measure voltage across the thermistors
757  */
758 static struct sensor_device_attribute therm_input[] = {
759  SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0 + 11),
760  SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1 + 11),
761  SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2 + 11),
762 };
763 static struct sensor_device_attribute therm_status[] = {
764  SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0 + 11),
765  SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1 + 11),
766  SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2 + 11),
767 };
768 static struct sensor_device_attribute therm_min[] = {
769  SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
770  show_therm_min, set_therm_min, 0 + 11),
771  SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
772  show_therm_min, set_therm_min, 1 + 11),
773  SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
774  show_therm_min, set_therm_min, 2 + 11),
775 };
776 static struct sensor_device_attribute therm_max[] = {
777  SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
778  show_therm_max, set_therm_max, 0 + 11),
779  SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
780  show_therm_max, set_therm_max, 1 + 11),
781  SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
782  show_therm_max, set_therm_max, 2 + 11),
783 };
784 static struct sensor_device_attribute therm_crit[] = {
785  SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
786  show_therm_crit, set_therm_crit, 0 + 11),
787  SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
788  show_therm_crit, set_therm_crit, 1 + 11),
789  SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
790  show_therm_crit, set_therm_crit, 2 + 11),
791 };
792 
793 /*
794  * show_therm_min/max_alarm() reads data from the per-channel voltage
795  * status register (sec 11.5.12)
796  */
797 
798 static ssize_t show_therm_min_alarm(struct device *dev,
799  struct device_attribute *devattr, char *buf)
800 {
801  struct pc87360_data *data = pc87360_update_device(dev);
802  unsigned nr = to_sensor_dev_attr(devattr)->index;
803 
804  return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
805 }
806 static ssize_t show_therm_max_alarm(struct device *dev,
807  struct device_attribute *devattr, char *buf)
808 {
809  struct pc87360_data *data = pc87360_update_device(dev);
810  unsigned nr = to_sensor_dev_attr(devattr)->index;
811 
812  return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
813 }
814 static ssize_t show_therm_crit_alarm(struct device *dev,
815  struct device_attribute *devattr, char *buf)
816 {
817  struct pc87360_data *data = pc87360_update_device(dev);
818  unsigned nr = to_sensor_dev_attr(devattr)->index;
819 
820  return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
821 }
822 
823 static struct sensor_device_attribute therm_min_alarm[] = {
824  SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
825  show_therm_min_alarm, NULL, 0 + 11),
826  SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
827  show_therm_min_alarm, NULL, 1 + 11),
828  SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
829  show_therm_min_alarm, NULL, 2 + 11),
830 };
831 static struct sensor_device_attribute therm_max_alarm[] = {
832  SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
833  show_therm_max_alarm, NULL, 0 + 11),
834  SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
835  show_therm_max_alarm, NULL, 1 + 11),
836  SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
837  show_therm_max_alarm, NULL, 2 + 11),
838 };
839 static struct sensor_device_attribute therm_crit_alarm[] = {
840  SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
841  show_therm_crit_alarm, NULL, 0 + 11),
842  SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
843  show_therm_crit_alarm, NULL, 1 + 11),
844  SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
845  show_therm_crit_alarm, NULL, 2 + 11),
846 };
847 
848 #define THERM_UNIT_ATTRS(X) \
849  &therm_input[X].dev_attr.attr, \
850  &therm_status[X].dev_attr.attr, \
851  &therm_min[X].dev_attr.attr, \
852  &therm_max[X].dev_attr.attr, \
853  &therm_crit[X].dev_attr.attr, \
854  &therm_min_alarm[X].dev_attr.attr, \
855  &therm_max_alarm[X].dev_attr.attr, \
856  &therm_crit_alarm[X].dev_attr.attr
857 
858 static struct attribute *pc8736x_therm_attr_array[] = {
859  THERM_UNIT_ATTRS(0),
860  THERM_UNIT_ATTRS(1),
861  THERM_UNIT_ATTRS(2),
862  NULL
863 };
864 static const struct attribute_group pc8736x_therm_group = {
865  .attrs = pc8736x_therm_attr_array,
866 };
867 
868 static ssize_t show_temp_input(struct device *dev,
869  struct device_attribute *devattr, char *buf)
870 {
871  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
872  struct pc87360_data *data = pc87360_update_device(dev);
873  return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
874 }
875 
876 static ssize_t show_temp_min(struct device *dev,
877  struct device_attribute *devattr, char *buf)
878 {
879  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
880  struct pc87360_data *data = pc87360_update_device(dev);
881  return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
882 }
883 
884 static ssize_t show_temp_max(struct device *dev,
885  struct device_attribute *devattr, char *buf)
886 {
887  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
888  struct pc87360_data *data = pc87360_update_device(dev);
889  return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
890 }
891 
892 static ssize_t show_temp_crit(struct device *dev,
893  struct device_attribute *devattr, char *buf)
894 {
895  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
896  struct pc87360_data *data = pc87360_update_device(dev);
897  return sprintf(buf, "%d\n",
898  TEMP_FROM_REG(data->temp_crit[attr->index]));
899 }
900 
901 static ssize_t show_temp_status(struct device *dev,
902  struct device_attribute *devattr, char *buf)
903 {
904  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
905  struct pc87360_data *data = pc87360_update_device(dev);
906  return sprintf(buf, "%d\n", data->temp_status[attr->index]);
907 }
908 
909 static ssize_t set_temp_min(struct device *dev,
910  struct device_attribute *devattr,
911  const char *buf, size_t count)
912 {
913  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
914  struct pc87360_data *data = dev_get_drvdata(dev);
915  long val;
916  int err;
917 
918  err = kstrtol(buf, 10, &val);
919  if (err)
920  return err;
921 
922  mutex_lock(&data->update_lock);
923  data->temp_min[attr->index] = TEMP_TO_REG(val);
924  pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
925  data->temp_min[attr->index]);
926  mutex_unlock(&data->update_lock);
927  return count;
928 }
929 
930 static ssize_t set_temp_max(struct device *dev,
931  struct device_attribute *devattr,
932  const char *buf, size_t count)
933 {
934  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
935  struct pc87360_data *data = dev_get_drvdata(dev);
936  long val;
937  int err;
938 
939  err = kstrtol(buf, 10, &val);
940  if (err)
941  return err;
942 
943  mutex_lock(&data->update_lock);
944  data->temp_max[attr->index] = TEMP_TO_REG(val);
945  pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
946  data->temp_max[attr->index]);
947  mutex_unlock(&data->update_lock);
948  return count;
949 }
950 
951 static ssize_t set_temp_crit(struct device *dev,
952  struct device_attribute *devattr, const char *buf,
953  size_t count)
954 {
955  struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
956  struct pc87360_data *data = dev_get_drvdata(dev);
957  long val;
958  int err;
959 
960  err = kstrtol(buf, 10, &val);
961  if (err)
962  return err;
963 
964  mutex_lock(&data->update_lock);
965  data->temp_crit[attr->index] = TEMP_TO_REG(val);
966  pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
967  data->temp_crit[attr->index]);
968  mutex_unlock(&data->update_lock);
969  return count;
970 }
971 
972 static struct sensor_device_attribute temp_input[] = {
973  SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
974  SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
975  SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
976 };
977 static struct sensor_device_attribute temp_status[] = {
978  SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
979  SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
980  SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
981 };
982 static struct sensor_device_attribute temp_min[] = {
983  SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
984  show_temp_min, set_temp_min, 0),
985  SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
986  show_temp_min, set_temp_min, 1),
987  SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
988  show_temp_min, set_temp_min, 2),
989 };
990 static struct sensor_device_attribute temp_max[] = {
991  SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
992  show_temp_max, set_temp_max, 0),
993  SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
994  show_temp_max, set_temp_max, 1),
995  SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
996  show_temp_max, set_temp_max, 2),
997 };
998 static struct sensor_device_attribute temp_crit[] = {
999  SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
1000  show_temp_crit, set_temp_crit, 0),
1001  SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
1002  show_temp_crit, set_temp_crit, 1),
1003  SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
1004  show_temp_crit, set_temp_crit, 2),
1005 };
1006 
1007 static ssize_t show_temp_alarms(struct device *dev,
1008  struct device_attribute *attr, char *buf)
1009 {
1010  struct pc87360_data *data = pc87360_update_device(dev);
1011  return sprintf(buf, "%u\n", data->temp_alarms);
1012 }
1013 
1014 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
1015 
1016 /*
1017  * show_temp_min/max_alarm() reads data from the per-channel status
1018  * register (sec 12.3.7), not the temp event status registers (sec
1019  * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1020  */
1021 
1022 static ssize_t show_temp_min_alarm(struct device *dev,
1023  struct device_attribute *devattr, char *buf)
1024 {
1025  struct pc87360_data *data = pc87360_update_device(dev);
1026  unsigned nr = to_sensor_dev_attr(devattr)->index;
1027 
1028  return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1029 }
1030 
1031 static ssize_t show_temp_max_alarm(struct device *dev,
1032  struct device_attribute *devattr, char *buf)
1033 {
1034  struct pc87360_data *data = pc87360_update_device(dev);
1035  unsigned nr = to_sensor_dev_attr(devattr)->index;
1036 
1037  return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1038 }
1039 
1040 static ssize_t show_temp_crit_alarm(struct device *dev,
1041  struct device_attribute *devattr, char *buf)
1042 {
1043  struct pc87360_data *data = pc87360_update_device(dev);
1044  unsigned nr = to_sensor_dev_attr(devattr)->index;
1045 
1046  return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1047 }
1048 
1049 static struct sensor_device_attribute temp_min_alarm[] = {
1050  SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
1051  SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
1052  SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
1053 };
1054 
1055 static struct sensor_device_attribute temp_max_alarm[] = {
1056  SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
1057  SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
1058  SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
1059 };
1060 
1061 static struct sensor_device_attribute temp_crit_alarm[] = {
1062  SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
1063  SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
1064  SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
1065 };
1066 
1067 #define TEMP_FAULT 0x40 /* open diode */
1068 static ssize_t show_temp_fault(struct device *dev,
1069  struct device_attribute *devattr, char *buf)
1070 {
1071  struct pc87360_data *data = pc87360_update_device(dev);
1072  unsigned nr = to_sensor_dev_attr(devattr)->index;
1073 
1074  return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1075 }
1076 static struct sensor_device_attribute temp_fault[] = {
1077  SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
1078  SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
1079  SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
1080 };
1081 
1082 #define TEMP_UNIT_ATTRS(X) \
1083 { &temp_input[X].dev_attr.attr, \
1084  &temp_status[X].dev_attr.attr, \
1085  &temp_min[X].dev_attr.attr, \
1086  &temp_max[X].dev_attr.attr, \
1087  &temp_crit[X].dev_attr.attr, \
1088  &temp_min_alarm[X].dev_attr.attr, \
1089  &temp_max_alarm[X].dev_attr.attr, \
1090  &temp_crit_alarm[X].dev_attr.attr, \
1091  &temp_fault[X].dev_attr.attr, \
1092  NULL \
1093 }
1094 
1095 static struct attribute *pc8736x_temp_attr[][10] = {
1096  TEMP_UNIT_ATTRS(0),
1097  TEMP_UNIT_ATTRS(1),
1098  TEMP_UNIT_ATTRS(2)
1099 };
1100 
1101 static const struct attribute_group pc8736x_temp_attr_group[] = {
1102  { .attrs = pc8736x_temp_attr[0] },
1103  { .attrs = pc8736x_temp_attr[1] },
1104  { .attrs = pc8736x_temp_attr[2] }
1105 };
1106 
1107 static ssize_t show_name(struct device *dev,
1108  struct device_attribute *devattr, char *buf)
1109 {
1110  struct pc87360_data *data = dev_get_drvdata(dev);
1111  return sprintf(buf, "%s\n", data->name);
1112 }
1113 
1114 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1115 
1116 /*
1117  * Device detection, registration and update
1118  */
1119 
1120 static int __init pc87360_find(int sioaddr, u8 *devid,
1121  unsigned short *addresses)
1122 {
1123  u16 val;
1124  int i;
1125  int nrdev; /* logical device count */
1126 
1127  /* No superio_enter */
1128 
1129  /* Identify device */
1130  val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1131  switch (val) {
1132  case 0xE1: /* PC87360 */
1133  case 0xE8: /* PC87363 */
1134  case 0xE4: /* PC87364 */
1135  nrdev = 1;
1136  break;
1137  case 0xE5: /* PC87365 */
1138  case 0xE9: /* PC87366 */
1139  nrdev = 3;
1140  break;
1141  default:
1142  superio_exit(sioaddr);
1143  return -ENODEV;
1144  }
1145  /* Remember the device id */
1146  *devid = val;
1147 
1148  for (i = 0; i < nrdev; i++) {
1149  /* select logical device */
1150  superio_outb(sioaddr, DEV, logdev[i]);
1151 
1152  val = superio_inb(sioaddr, ACT);
1153  if (!(val & 0x01)) {
1154  pr_info("Device 0x%02x not activated\n", logdev[i]);
1155  continue;
1156  }
1157 
1158  val = (superio_inb(sioaddr, BASE) << 8)
1159  | superio_inb(sioaddr, BASE + 1);
1160  if (!val) {
1161  pr_info("Base address not set for device 0x%02x\n",
1162  logdev[i]);
1163  continue;
1164  }
1165 
1166  addresses[i] = val;
1167 
1168  if (i == 0) { /* Fans */
1169  confreg[0] = superio_inb(sioaddr, 0xF0);
1170  confreg[1] = superio_inb(sioaddr, 0xF1);
1171 
1172  pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1173  (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1174  (confreg[0] >> 4) & 1);
1175  pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1176  (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1177  (confreg[0] >> 7) & 1);
1178  pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1179  confreg[1] & 1, (confreg[1] >> 1) & 1,
1180  (confreg[1] >> 2) & 1);
1181  } else if (i == 1) { /* Voltages */
1182  /* Are we using thermistors? */
1183  if (*devid == 0xE9) { /* PC87366 */
1184  /*
1185  * These registers are not logical-device
1186  * specific, just that we won't need them if
1187  * we don't use the VLM device
1188  */
1189  confreg[2] = superio_inb(sioaddr, 0x2B);
1190  confreg[3] = superio_inb(sioaddr, 0x25);
1191 
1192  if (confreg[2] & 0x40) {
1193  pr_info("Using thermistors for "
1194  "temperature monitoring\n");
1195  }
1196  if (confreg[3] & 0xE0) {
1197  pr_info("VID inputs routed (mode %u)\n",
1198  confreg[3] >> 5);
1199  }
1200  }
1201  }
1202  }
1203 
1204  superio_exit(sioaddr);
1205  return 0;
1206 }
1207 
1208 static void pc87360_remove_files(struct device *dev)
1209 {
1210  int i;
1211 
1212  device_remove_file(dev, &dev_attr_name);
1213  device_remove_file(dev, &dev_attr_alarms_temp);
1214  for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1215  sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1216  for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1217  sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1218  device_remove_file(dev, &pwm[i].dev_attr);
1219  }
1220  sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1221  sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1222 }
1223 
1224 static int __devinit pc87360_probe(struct platform_device *pdev)
1225 {
1226  int i;
1227  struct pc87360_data *data;
1228  int err = 0;
1229  const char *name = "pc87360";
1230  int use_thermistors = 0;
1231  struct device *dev = &pdev->dev;
1232 
1233  data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1234  if (!data)
1235  return -ENOMEM;
1236 
1237  data->fannr = 2;
1238  data->innr = 0;
1239  data->tempnr = 0;
1240 
1241  switch (devid) {
1242  case 0xe8:
1243  name = "pc87363";
1244  break;
1245  case 0xe4:
1246  name = "pc87364";
1247  data->fannr = 3;
1248  break;
1249  case 0xe5:
1250  name = "pc87365";
1251  data->fannr = extra_isa[0] ? 3 : 0;
1252  data->innr = extra_isa[1] ? 11 : 0;
1253  data->tempnr = extra_isa[2] ? 2 : 0;
1254  break;
1255  case 0xe9:
1256  name = "pc87366";
1257  data->fannr = extra_isa[0] ? 3 : 0;
1258  data->innr = extra_isa[1] ? 14 : 0;
1259  data->tempnr = extra_isa[2] ? 3 : 0;
1260  break;
1261  }
1262 
1263  data->name = name;
1264  data->valid = 0;
1265  mutex_init(&data->lock);
1266  mutex_init(&data->update_lock);
1267  platform_set_drvdata(pdev, data);
1268 
1269  for (i = 0; i < LDNI_MAX; i++) {
1270  data->address[i] = extra_isa[i];
1271  if (data->address[i]
1272  && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1273  pc87360_driver.driver.name)) {
1274  dev_err(dev, "Region 0x%x-0x%x already "
1275  "in use!\n", extra_isa[i],
1276  extra_isa[i]+PC87360_EXTENT-1);
1277  return -EBUSY;
1278  }
1279  }
1280 
1281  /* Retrieve the fans configuration from Super-I/O space */
1282  if (data->fannr)
1283  data->fan_conf = confreg[0] | (confreg[1] << 8);
1284 
1285  /*
1286  * Use the correct reference voltage
1287  * Unless both the VLM and the TMS logical devices agree to
1288  * use an external Vref, the internal one is used.
1289  */
1290  if (data->innr) {
1291  i = pc87360_read_value(data, LD_IN, NO_BANK,
1292  PC87365_REG_IN_CONFIG);
1293  if (data->tempnr) {
1294  i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1295  PC87365_REG_TEMP_CONFIG);
1296  }
1297  data->in_vref = (i&0x02) ? 3025 : 2966;
1298  dev_dbg(dev, "Using %s reference voltage\n",
1299  (i&0x02) ? "external" : "internal");
1300 
1301  data->vid_conf = confreg[3];
1302  data->vrm = vid_which_vrm();
1303  }
1304 
1305  /* Fan clock dividers may be needed before any data is read */
1306  for (i = 0; i < data->fannr; i++) {
1307  if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1308  data->fan_status[i] = pc87360_read_value(data,
1309  LD_FAN, NO_BANK,
1310  PC87360_REG_FAN_STATUS(i));
1311  }
1312 
1313  if (init > 0) {
1314  if (devid == 0xe9 && data->address[1]) /* PC87366 */
1315  use_thermistors = confreg[2] & 0x40;
1316 
1317  pc87360_init_device(pdev, use_thermistors);
1318  }
1319 
1320  /* Register all-or-nothing sysfs groups */
1321 
1322  if (data->innr) {
1323  err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1324  if (err)
1325  goto error;
1326  }
1327 
1328  if (data->innr == 14) {
1329  err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1330  if (err)
1331  goto error;
1332  }
1333 
1334  /* create device attr-files for varying sysfs groups */
1335 
1336  if (data->tempnr) {
1337  for (i = 0; i < data->tempnr; i++) {
1338  err = sysfs_create_group(&dev->kobj,
1339  &pc8736x_temp_attr_group[i]);
1340  if (err)
1341  goto error;
1342  }
1343  err = device_create_file(dev, &dev_attr_alarms_temp);
1344  if (err)
1345  goto error;
1346  }
1347 
1348  for (i = 0; i < data->fannr; i++) {
1349  if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1350  err = sysfs_create_group(&dev->kobj,
1351  &pc8736x_fan_attr_group[i]);
1352  if (err)
1353  goto error;
1354  }
1355  if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1356  err = device_create_file(dev, &pwm[i].dev_attr);
1357  if (err)
1358  goto error;
1359  }
1360  }
1361 
1362  err = device_create_file(dev, &dev_attr_name);
1363  if (err)
1364  goto error;
1365 
1366  data->hwmon_dev = hwmon_device_register(dev);
1367  if (IS_ERR(data->hwmon_dev)) {
1368  err = PTR_ERR(data->hwmon_dev);
1369  goto error;
1370  }
1371  return 0;
1372 
1373 error:
1374  pc87360_remove_files(dev);
1375  return err;
1376 }
1377 
1378 static int __devexit pc87360_remove(struct platform_device *pdev)
1379 {
1380  struct pc87360_data *data = platform_get_drvdata(pdev);
1381 
1382  hwmon_device_unregister(data->hwmon_dev);
1383  pc87360_remove_files(&pdev->dev);
1384 
1385  return 0;
1386 }
1387 
1388 /*
1389  * ldi is the logical device index
1390  * bank is for voltages and temperatures only
1391  */
1392 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1393  u8 reg)
1394 {
1395  int res;
1396 
1397  mutex_lock(&(data->lock));
1398  if (bank != NO_BANK)
1399  outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1400  res = inb_p(data->address[ldi] + reg);
1401  mutex_unlock(&(data->lock));
1402 
1403  return res;
1404 }
1405 
1406 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1407  u8 reg, u8 value)
1408 {
1409  mutex_lock(&(data->lock));
1410  if (bank != NO_BANK)
1411  outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1412  outb_p(value, data->address[ldi] + reg);
1413  mutex_unlock(&(data->lock));
1414 }
1415 
1416 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1417 #define CHAN_CNVRTD 0x80 /* new data ready */
1418 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1419 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1420 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1421 
1422 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1423 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1424 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1425 
1426 static void pc87360_init_device(struct platform_device *pdev,
1427  int use_thermistors)
1428 {
1429  struct pc87360_data *data = platform_get_drvdata(pdev);
1430  int i, nr;
1431  const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1432  const u8 init_temp[3] = { 2, 2, 1 };
1433  u8 reg;
1434 
1435  if (init >= 2 && data->innr) {
1436  reg = pc87360_read_value(data, LD_IN, NO_BANK,
1437  PC87365_REG_IN_CONVRATE);
1438  dev_info(&pdev->dev, "VLM conversion set to "
1439  "1s period, 160us delay\n");
1440  pc87360_write_value(data, LD_IN, NO_BANK,
1441  PC87365_REG_IN_CONVRATE,
1442  (reg & 0xC0) | 0x11);
1443  }
1444 
1445  nr = data->innr < 11 ? data->innr : 11;
1446  for (i = 0; i < nr; i++) {
1447  reg = pc87360_read_value(data, LD_IN, i,
1448  PC87365_REG_IN_STATUS);
1449  dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1450  if (init >= init_in[i]) {
1451  /* Forcibly enable voltage channel */
1452  if (!(reg & CHAN_ENA)) {
1453  dev_dbg(&pdev->dev, "Forcibly "
1454  "enabling in%d\n", i);
1455  pc87360_write_value(data, LD_IN, i,
1456  PC87365_REG_IN_STATUS,
1457  (reg & 0x68) | 0x87);
1458  }
1459  }
1460  }
1461 
1462  /*
1463  * We can't blindly trust the Super-I/O space configuration bit,
1464  * most BIOS won't set it properly
1465  */
1466  dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1467  for (i = 11; i < data->innr; i++) {
1468  reg = pc87360_read_value(data, LD_IN, i,
1469  PC87365_REG_TEMP_STATUS);
1470  use_thermistors = use_thermistors || (reg & CHAN_ENA);
1471  /* thermistors are temp[4-6], measured on vin[11-14] */
1472  dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1473  }
1474  dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1475 
1476  i = use_thermistors ? 2 : 0;
1477  for (; i < data->tempnr; i++) {
1478  reg = pc87360_read_value(data, LD_TEMP, i,
1479  PC87365_REG_TEMP_STATUS);
1480  dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1481  if (init >= init_temp[i]) {
1482  /* Forcibly enable temperature channel */
1483  if (!(reg & CHAN_ENA)) {
1484  dev_dbg(&pdev->dev,
1485  "Forcibly enabling temp%d\n", i + 1);
1486  pc87360_write_value(data, LD_TEMP, i,
1487  PC87365_REG_TEMP_STATUS,
1488  0xCF);
1489  }
1490  }
1491  }
1492 
1493  if (use_thermistors) {
1494  for (i = 11; i < data->innr; i++) {
1495  if (init >= init_in[i]) {
1496  /*
1497  * The pin may already be used by thermal
1498  * diodes
1499  */
1500  reg = pc87360_read_value(data, LD_TEMP,
1501  (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1502  if (reg & CHAN_ENA) {
1503  dev_dbg(&pdev->dev,
1504  "Skipping temp%d, pin already in use by temp%d\n",
1505  i - 7, (i - 11) / 2);
1506  continue;
1507  }
1508 
1509  /* Forcibly enable thermistor channel */
1510  reg = pc87360_read_value(data, LD_IN, i,
1511  PC87365_REG_IN_STATUS);
1512  if (!(reg & CHAN_ENA)) {
1513  dev_dbg(&pdev->dev,
1514  "Forcibly enabling temp%d\n",
1515  i - 7);
1516  pc87360_write_value(data, LD_IN, i,
1517  PC87365_REG_TEMP_STATUS,
1518  (reg & 0x60) | 0x8F);
1519  }
1520  }
1521  }
1522  }
1523 
1524  if (data->innr) {
1525  reg = pc87360_read_value(data, LD_IN, NO_BANK,
1526  PC87365_REG_IN_CONFIG);
1527  dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1528  if (reg & CHAN_ENA) {
1529  dev_dbg(&pdev->dev,
1530  "Forcibly enabling monitoring (VLM)\n");
1531  pc87360_write_value(data, LD_IN, NO_BANK,
1532  PC87365_REG_IN_CONFIG,
1533  reg & 0xFE);
1534  }
1535  }
1536 
1537  if (data->tempnr) {
1538  reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1539  PC87365_REG_TEMP_CONFIG);
1540  dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1541  if (reg & CHAN_ENA) {
1542  dev_dbg(&pdev->dev,
1543  "Forcibly enabling monitoring (TMS)\n");
1544  pc87360_write_value(data, LD_TEMP, NO_BANK,
1545  PC87365_REG_TEMP_CONFIG,
1546  reg & 0xFE);
1547  }
1548 
1549  if (init >= 2) {
1550  /* Chip config as documented by National Semi. */
1551  pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1552  /*
1553  * We voluntarily omit the bank here, in case the
1554  * sequence itself matters. It shouldn't be a problem,
1555  * since nobody else is supposed to access the
1556  * device at that point.
1557  */
1558  pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1559  pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1560  pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1561  pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1562  }
1563  }
1564 }
1565 
1566 static void pc87360_autodiv(struct device *dev, int nr)
1567 {
1568  struct pc87360_data *data = dev_get_drvdata(dev);
1569  u8 old_min = data->fan_min[nr];
1570 
1571  /* Increase clock divider if needed and possible */
1572  if ((data->fan_status[nr] & 0x04) /* overflow flag */
1573  || (data->fan[nr] >= 224)) { /* next to overflow */
1574  if ((data->fan_status[nr] & 0x60) != 0x60) {
1575  data->fan_status[nr] += 0x20;
1576  data->fan_min[nr] >>= 1;
1577  data->fan[nr] >>= 1;
1578  dev_dbg(dev, "Increasing "
1579  "clock divider to %d for fan %d\n",
1580  FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1581  }
1582  } else {
1583  /* Decrease clock divider if possible */
1584  while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1585  && data->fan[nr] < 85 /* bad accuracy */
1586  && (data->fan_status[nr] & 0x60) != 0x00) {
1587  data->fan_status[nr] -= 0x20;
1588  data->fan_min[nr] <<= 1;
1589  data->fan[nr] <<= 1;
1590  dev_dbg(dev, "Decreasing "
1591  "clock divider to %d for fan %d\n",
1592  FAN_DIV_FROM_REG(data->fan_status[nr]),
1593  nr + 1);
1594  }
1595  }
1596 
1597  /* Write new fan min if it changed */
1598  if (old_min != data->fan_min[nr]) {
1599  pc87360_write_value(data, LD_FAN, NO_BANK,
1600  PC87360_REG_FAN_MIN(nr),
1601  data->fan_min[nr]);
1602  }
1603 }
1604 
1605 static struct pc87360_data *pc87360_update_device(struct device *dev)
1606 {
1607  struct pc87360_data *data = dev_get_drvdata(dev);
1608  u8 i;
1609 
1610  mutex_lock(&data->update_lock);
1611 
1612  if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1613  dev_dbg(dev, "Data update\n");
1614 
1615  /* Fans */
1616  for (i = 0; i < data->fannr; i++) {
1617  if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1618  data->fan_status[i] =
1619  pc87360_read_value(data, LD_FAN,
1620  NO_BANK, PC87360_REG_FAN_STATUS(i));
1621  data->fan[i] = pc87360_read_value(data, LD_FAN,
1622  NO_BANK, PC87360_REG_FAN(i));
1623  data->fan_min[i] = pc87360_read_value(data,
1624  LD_FAN, NO_BANK,
1625  PC87360_REG_FAN_MIN(i));
1626  /* Change clock divider if needed */
1627  pc87360_autodiv(dev, i);
1628  /* Clear bits and write new divider */
1629  pc87360_write_value(data, LD_FAN, NO_BANK,
1630  PC87360_REG_FAN_STATUS(i),
1631  data->fan_status[i]);
1632  }
1633  if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1634  data->pwm[i] = pc87360_read_value(data, LD_FAN,
1635  NO_BANK, PC87360_REG_PWM(i));
1636  }
1637 
1638  /* Voltages */
1639  for (i = 0; i < data->innr; i++) {
1640  data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1641  PC87365_REG_IN_STATUS);
1642  /* Clear bits */
1643  pc87360_write_value(data, LD_IN, i,
1644  PC87365_REG_IN_STATUS,
1645  data->in_status[i]);
1646  if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1647  data->in[i] = pc87360_read_value(data, LD_IN,
1648  i, PC87365_REG_IN);
1649  }
1650  if (data->in_status[i] & CHAN_ENA) {
1651  data->in_min[i] = pc87360_read_value(data,
1652  LD_IN, i,
1653  PC87365_REG_IN_MIN);
1654  data->in_max[i] = pc87360_read_value(data,
1655  LD_IN, i,
1656  PC87365_REG_IN_MAX);
1657  if (i >= 11)
1658  data->in_crit[i-11] =
1659  pc87360_read_value(data, LD_IN,
1660  i, PC87365_REG_TEMP_CRIT);
1661  }
1662  }
1663  if (data->innr) {
1664  data->in_alarms = pc87360_read_value(data, LD_IN,
1665  NO_BANK, PC87365_REG_IN_ALARMS1)
1666  | ((pc87360_read_value(data, LD_IN,
1667  NO_BANK, PC87365_REG_IN_ALARMS2)
1668  & 0x07) << 8);
1669  data->vid = (data->vid_conf & 0xE0) ?
1670  pc87360_read_value(data, LD_IN,
1671  NO_BANK, PC87365_REG_VID) : 0x1F;
1672  }
1673 
1674  /* Temperatures */
1675  for (i = 0; i < data->tempnr; i++) {
1676  data->temp_status[i] = pc87360_read_value(data,
1677  LD_TEMP, i,
1678  PC87365_REG_TEMP_STATUS);
1679  /* Clear bits */
1680  pc87360_write_value(data, LD_TEMP, i,
1681  PC87365_REG_TEMP_STATUS,
1682  data->temp_status[i]);
1683  if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1684  data->temp[i] = pc87360_read_value(data,
1685  LD_TEMP, i,
1686  PC87365_REG_TEMP);
1687  }
1688  if (data->temp_status[i] & CHAN_ENA) {
1689  data->temp_min[i] = pc87360_read_value(data,
1690  LD_TEMP, i,
1691  PC87365_REG_TEMP_MIN);
1692  data->temp_max[i] = pc87360_read_value(data,
1693  LD_TEMP, i,
1694  PC87365_REG_TEMP_MAX);
1695  data->temp_crit[i] = pc87360_read_value(data,
1696  LD_TEMP, i,
1697  PC87365_REG_TEMP_CRIT);
1698  }
1699  }
1700  if (data->tempnr) {
1701  data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1702  NO_BANK, PC87365_REG_TEMP_ALARMS)
1703  & 0x3F;
1704  }
1705 
1706  data->last_updated = jiffies;
1707  data->valid = 1;
1708  }
1709 
1710  mutex_unlock(&data->update_lock);
1711 
1712  return data;
1713 }
1714 
1715 static int __init pc87360_device_add(unsigned short address)
1716 {
1717  struct resource res[3];
1718  int err, i, res_count;
1719 
1720  pdev = platform_device_alloc("pc87360", address);
1721  if (!pdev) {
1722  err = -ENOMEM;
1723  pr_err("Device allocation failed\n");
1724  goto exit;
1725  }
1726 
1727  memset(res, 0, 3 * sizeof(struct resource));
1728  res_count = 0;
1729  for (i = 0; i < 3; i++) {
1730  if (!extra_isa[i])
1731  continue;
1732  res[res_count].start = extra_isa[i];
1733  res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1734  res[res_count].name = "pc87360",
1735  res[res_count].flags = IORESOURCE_IO,
1736 
1737  err = acpi_check_resource_conflict(&res[res_count]);
1738  if (err)
1739  goto exit_device_put;
1740 
1741  res_count++;
1742  }
1743 
1744  err = platform_device_add_resources(pdev, res, res_count);
1745  if (err) {
1746  pr_err("Device resources addition failed (%d)\n", err);
1747  goto exit_device_put;
1748  }
1749 
1750  err = platform_device_add(pdev);
1751  if (err) {
1752  pr_err("Device addition failed (%d)\n", err);
1753  goto exit_device_put;
1754  }
1755 
1756  return 0;
1757 
1758 exit_device_put:
1759  platform_device_put(pdev);
1760 exit:
1761  return err;
1762 }
1763 
1764 static int __init pc87360_init(void)
1765 {
1766  int err, i;
1767  unsigned short address = 0;
1768 
1769  if (pc87360_find(0x2e, &devid, extra_isa)
1770  && pc87360_find(0x4e, &devid, extra_isa)) {
1771  pr_warn("PC8736x not detected, module not inserted\n");
1772  return -ENODEV;
1773  }
1774 
1775  /* Arbitrarily pick one of the addresses */
1776  for (i = 0; i < 3; i++) {
1777  if (extra_isa[i] != 0x0000) {
1778  address = extra_isa[i];
1779  break;
1780  }
1781  }
1782 
1783  if (address == 0x0000) {
1784  pr_warn("No active logical device, module not inserted\n");
1785  return -ENODEV;
1786  }
1787 
1788  err = platform_driver_register(&pc87360_driver);
1789  if (err)
1790  goto exit;
1791 
1792  /* Sets global pdev as a side effect */
1793  err = pc87360_device_add(address);
1794  if (err)
1795  goto exit_driver;
1796 
1797  return 0;
1798 
1799  exit_driver:
1800  platform_driver_unregister(&pc87360_driver);
1801  exit:
1802  return err;
1803 }
1804 
1805 static void __exit pc87360_exit(void)
1806 {
1807  platform_device_unregister(pdev);
1808  platform_driver_unregister(&pc87360_driver);
1809 }
1810 
1811 
1812 MODULE_AUTHOR("Jean Delvare <[email protected]>");
1813 MODULE_DESCRIPTION("PC8736x hardware monitor");
1814 MODULE_LICENSE("GPL");
1815 
1816 module_init(pc87360_init);
1817 module_exit(pc87360_exit);
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