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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / hwmon / pc87360.c
blob3d99b8854d7c2177edb4dc5096665f6b8ae37515
1 /*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004, 2007 Jean Delvare <khali@linux-fr.org>
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 __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, struct device_attribute *devattr, char *buf)
259 {
260 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
261 struct pc87360_data *data = pc87360_update_device(dev);
262 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
263 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
264 }
265 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
266 {
267 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
268 struct pc87360_data *data = pc87360_update_device(dev);
269 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
270 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
271 }
272 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
273 {
274 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
275 struct pc87360_data *data = pc87360_update_device(dev);
276 return sprintf(buf, "%u\n",
277 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
278 }
279 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
280 {
281 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
282 struct pc87360_data *data = pc87360_update_device(dev);
283 return sprintf(buf, "%u\n",
284 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
285 }
286 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
287 size_t count)
288 {
289 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
290 struct pc87360_data *data = dev_get_drvdata(dev);
291 long fan_min = simple_strtol(buf, NULL, 10);
292
293 mutex_lock(&data->update_lock);
294 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
295
296 /* If it wouldn't fit, change clock divisor */
297 while (fan_min > 255
298 && (data->fan_status[attr->index] & 0x60) != 0x60) {
299 fan_min >>= 1;
300 data->fan[attr->index] >>= 1;
301 data->fan_status[attr->index] += 0x20;
302 }
303 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
304 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
305 data->fan_min[attr->index]);
306
307 /* Write new divider, preserve alarm bits */
308 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
309 data->fan_status[attr->index] & 0xF9);
310 mutex_unlock(&data->update_lock);
311
312 return count;
313 }
314
315 static struct sensor_device_attribute fan_input[] = {
316 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
317 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
318 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
319 };
320 static struct sensor_device_attribute fan_status[] = {
321 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
322 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
323 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
324 };
325 static struct sensor_device_attribute fan_div[] = {
326 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
327 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
328 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
329 };
330 static struct sensor_device_attribute fan_min[] = {
331 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
332 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
333 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
334 };
335
336 #define FAN_UNIT_ATTRS(X) \
337 &fan_input[X].dev_attr.attr, \
338 &fan_status[X].dev_attr.attr, \
339 &fan_div[X].dev_attr.attr, \
340 &fan_min[X].dev_attr.attr
341
342 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
343 {
344 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
345 struct pc87360_data *data = pc87360_update_device(dev);
346 return sprintf(buf, "%u\n",
347 PWM_FROM_REG(data->pwm[attr->index],
348 FAN_CONFIG_INVERT(data->fan_conf,
349 attr->index)));
350 }
351 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
352 size_t count)
353 {
354 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
355 struct pc87360_data *data = dev_get_drvdata(dev);
356 long val = simple_strtol(buf, NULL, 10);
357
358 mutex_lock(&data->update_lock);
359 data->pwm[attr->index] = PWM_TO_REG(val,
360 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
361 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
362 data->pwm[attr->index]);
363 mutex_unlock(&data->update_lock);
364 return count;
365 }
366
367 static struct sensor_device_attribute pwm[] = {
368 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
369 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
370 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
371 };
372
373 static struct attribute * pc8736x_fan_attr_array[] = {
374 FAN_UNIT_ATTRS(0),
375 FAN_UNIT_ATTRS(1),
376 FAN_UNIT_ATTRS(2),
377 &pwm[0].dev_attr.attr,
378 &pwm[1].dev_attr.attr,
379 &pwm[2].dev_attr.attr,
380 NULL
381 };
382 static const struct attribute_group pc8736x_fan_group = {
383 .attrs = pc8736x_fan_attr_array,
384 };
385
386 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
387 {
388 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
389 struct pc87360_data *data = pc87360_update_device(dev);
390 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
391 data->in_vref));
392 }
393 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
394 {
395 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
396 struct pc87360_data *data = pc87360_update_device(dev);
397 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
398 data->in_vref));
399 }
400 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
401 {
402 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
403 struct pc87360_data *data = pc87360_update_device(dev);
404 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
405 data->in_vref));
406 }
407 static ssize_t show_in_status(struct device *dev, 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", data->in_status[attr->index]);
412 }
413 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
414 size_t count)
415 {
416 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
417 struct pc87360_data *data = dev_get_drvdata(dev);
418 long val = simple_strtol(buf, NULL, 10);
419
420 mutex_lock(&data->update_lock);
421 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
422 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
423 data->in_min[attr->index]);
424 mutex_unlock(&data->update_lock);
425 return count;
426 }
427 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
428 size_t count)
429 {
430 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
431 struct pc87360_data *data = dev_get_drvdata(dev);
432 long val = simple_strtol(buf, NULL, 10);
433
434 mutex_lock(&data->update_lock);
435 data->in_max[attr->index] = IN_TO_REG(val,
436 data->in_vref);
437 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
438 data->in_max[attr->index]);
439 mutex_unlock(&data->update_lock);
440 return count;
441 }
442
443 static struct sensor_device_attribute in_input[] = {
444 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
445 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
446 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
447 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
448 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
449 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
450 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
451 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
452 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
453 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
454 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
455 };
456 static struct sensor_device_attribute in_status[] = {
457 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
458 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
459 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
460 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
461 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
462 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
463 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
464 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
465 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
466 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
467 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
468 };
469 static struct sensor_device_attribute in_min[] = {
470 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
471 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
472 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
473 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
474 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
475 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
476 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
477 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
478 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
479 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
480 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
481 };
482 static struct sensor_device_attribute in_max[] = {
483 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
484 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
485 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
486 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
487 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
488 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
489 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
490 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
491 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
492 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
493 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
494 };
495
496 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
497 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
498 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
499 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
500
501 /* show_in_min/max_alarm() reads data from the per-channel status
502 register (sec 11.5.12), not the vin event status registers (sec
503 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
504
505 static ssize_t show_in_min_alarm(struct device *dev,
506 struct device_attribute *devattr, char *buf)
507 {
508 struct pc87360_data *data = pc87360_update_device(dev);
509 unsigned nr = to_sensor_dev_attr(devattr)->index;
510
511 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
512 }
513 static ssize_t show_in_max_alarm(struct device *dev,
514 struct device_attribute *devattr, char *buf)
515 {
516 struct pc87360_data *data = pc87360_update_device(dev);
517 unsigned nr = to_sensor_dev_attr(devattr)->index;
518
519 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
520 }
521
522 static struct sensor_device_attribute in_min_alarm[] = {
523 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
524 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
525 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
526 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
527 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
528 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
529 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
530 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
531 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
532 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
533 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
534 };
535 static struct sensor_device_attribute in_max_alarm[] = {
536 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
537 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
538 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
539 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
540 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
541 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
542 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
543 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
544 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
545 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
546 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
547 };
548
549 #define VIN_UNIT_ATTRS(X) \
550 &in_input[X].dev_attr.attr, \
551 &in_status[X].dev_attr.attr, \
552 &in_min[X].dev_attr.attr, \
553 &in_max[X].dev_attr.attr, \
554 &in_min_alarm[X].dev_attr.attr, \
555 &in_max_alarm[X].dev_attr.attr
556
557 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
558 {
559 struct pc87360_data *data = pc87360_update_device(dev);
560 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
561 }
562 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
563
564 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
565 {
566 struct pc87360_data *data = dev_get_drvdata(dev);
567 return sprintf(buf, "%u\n", data->vrm);
568 }
569 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
570 {
571 struct pc87360_data *data = dev_get_drvdata(dev);
572 data->vrm = simple_strtoul(buf, NULL, 10);
573 return count;
574 }
575 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
576
577 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
578 {
579 struct pc87360_data *data = pc87360_update_device(dev);
580 return sprintf(buf, "%u\n", data->in_alarms);
581 }
582 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
583
584 static struct attribute *pc8736x_vin_attr_array[] = {
585 VIN_UNIT_ATTRS(0),
586 VIN_UNIT_ATTRS(1),
587 VIN_UNIT_ATTRS(2),
588 VIN_UNIT_ATTRS(3),
589 VIN_UNIT_ATTRS(4),
590 VIN_UNIT_ATTRS(5),
591 VIN_UNIT_ATTRS(6),
592 VIN_UNIT_ATTRS(7),
593 VIN_UNIT_ATTRS(8),
594 VIN_UNIT_ATTRS(9),
595 VIN_UNIT_ATTRS(10),
596 &dev_attr_cpu0_vid.attr,
597 &dev_attr_vrm.attr,
598 &dev_attr_alarms_in.attr,
599 NULL
600 };
601 static const struct attribute_group pc8736x_vin_group = {
602 .attrs = pc8736x_vin_attr_array,
603 };
604
605 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
606 {
607 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
608 struct pc87360_data *data = pc87360_update_device(dev);
609 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
610 data->in_vref));
611 }
612 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
613 {
614 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
615 struct pc87360_data *data = pc87360_update_device(dev);
616 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
617 data->in_vref));
618 }
619 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
620 {
621 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
622 struct pc87360_data *data = pc87360_update_device(dev);
623 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
624 data->in_vref));
625 }
626 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
627 {
628 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
629 struct pc87360_data *data = pc87360_update_device(dev);
630 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
631 data->in_vref));
632 }
633 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
634 {
635 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
636 struct pc87360_data *data = pc87360_update_device(dev);
637 return sprintf(buf, "%u\n", data->in_status[attr->index]);
638 }
639 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
640 size_t count)
641 {
642 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
643 struct pc87360_data *data = dev_get_drvdata(dev);
644 long val = simple_strtol(buf, NULL, 10);
645
646 mutex_lock(&data->update_lock);
647 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
648 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
649 data->in_min[attr->index]);
650 mutex_unlock(&data->update_lock);
651 return count;
652 }
653 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
654 size_t count)
655 {
656 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
657 struct pc87360_data *data = dev_get_drvdata(dev);
658 long val = simple_strtol(buf, NULL, 10);
659
660 mutex_lock(&data->update_lock);
661 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
662 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
663 data->in_max[attr->index]);
664 mutex_unlock(&data->update_lock);
665 return count;
666 }
667 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
668 size_t count)
669 {
670 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
671 struct pc87360_data *data = dev_get_drvdata(dev);
672 long val = simple_strtol(buf, NULL, 10);
673
674 mutex_lock(&data->update_lock);
675 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
676 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
677 data->in_crit[attr->index-11]);
678 mutex_unlock(&data->update_lock);
679 return count;
680 }
681
682 /* the +11 term below reflects the fact that VLM units 11,12,13 are
683 used in the chip to measure voltage across the thermistors
684 */
685 static struct sensor_device_attribute therm_input[] = {
686 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
687 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
688 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
689 };
690 static struct sensor_device_attribute therm_status[] = {
691 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
692 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
693 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
694 };
695 static struct sensor_device_attribute therm_min[] = {
696 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
697 show_therm_min, set_therm_min, 0+11),
698 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
699 show_therm_min, set_therm_min, 1+11),
700 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
701 show_therm_min, set_therm_min, 2+11),
702 };
703 static struct sensor_device_attribute therm_max[] = {
704 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
705 show_therm_max, set_therm_max, 0+11),
706 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
707 show_therm_max, set_therm_max, 1+11),
708 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
709 show_therm_max, set_therm_max, 2+11),
710 };
711 static struct sensor_device_attribute therm_crit[] = {
712 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
713 show_therm_crit, set_therm_crit, 0+11),
714 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
715 show_therm_crit, set_therm_crit, 1+11),
716 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
717 show_therm_crit, set_therm_crit, 2+11),
718 };
719
720 /* show_therm_min/max_alarm() reads data from the per-channel voltage
721 status register (sec 11.5.12) */
722
723 static ssize_t show_therm_min_alarm(struct device *dev,
724 struct device_attribute *devattr, char *buf)
725 {
726 struct pc87360_data *data = pc87360_update_device(dev);
727 unsigned nr = to_sensor_dev_attr(devattr)->index;
728
729 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
730 }
731 static ssize_t show_therm_max_alarm(struct device *dev,
732 struct device_attribute *devattr, char *buf)
733 {
734 struct pc87360_data *data = pc87360_update_device(dev);
735 unsigned nr = to_sensor_dev_attr(devattr)->index;
736
737 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
738 }
739 static ssize_t show_therm_crit_alarm(struct device *dev,
740 struct device_attribute *devattr, char *buf)
741 {
742 struct pc87360_data *data = pc87360_update_device(dev);
743 unsigned nr = to_sensor_dev_attr(devattr)->index;
744
745 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
746 }
747
748 static struct sensor_device_attribute therm_min_alarm[] = {
749 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
750 show_therm_min_alarm, NULL, 0+11),
751 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
752 show_therm_min_alarm, NULL, 1+11),
753 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
754 show_therm_min_alarm, NULL, 2+11),
755 };
756 static struct sensor_device_attribute therm_max_alarm[] = {
757 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
758 show_therm_max_alarm, NULL, 0+11),
759 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
760 show_therm_max_alarm, NULL, 1+11),
761 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
762 show_therm_max_alarm, NULL, 2+11),
763 };
764 static struct sensor_device_attribute therm_crit_alarm[] = {
765 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
766 show_therm_crit_alarm, NULL, 0+11),
767 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
768 show_therm_crit_alarm, NULL, 1+11),
769 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
770 show_therm_crit_alarm, NULL, 2+11),
771 };
772
773 #define THERM_UNIT_ATTRS(X) \
774 &therm_input[X].dev_attr.attr, \
775 &therm_status[X].dev_attr.attr, \
776 &therm_min[X].dev_attr.attr, \
777 &therm_max[X].dev_attr.attr, \
778 &therm_crit[X].dev_attr.attr, \
779 &therm_min_alarm[X].dev_attr.attr, \
780 &therm_max_alarm[X].dev_attr.attr, \
781 &therm_crit_alarm[X].dev_attr.attr
782
783 static struct attribute * pc8736x_therm_attr_array[] = {
784 THERM_UNIT_ATTRS(0),
785 THERM_UNIT_ATTRS(1),
786 THERM_UNIT_ATTRS(2),
787 NULL
788 };
789 static const struct attribute_group pc8736x_therm_group = {
790 .attrs = pc8736x_therm_attr_array,
791 };
792
793 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
794 {
795 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
796 struct pc87360_data *data = pc87360_update_device(dev);
797 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
798 }
799 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
800 {
801 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
802 struct pc87360_data *data = pc87360_update_device(dev);
803 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
804 }
805 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
806 {
807 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
808 struct pc87360_data *data = pc87360_update_device(dev);
809 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
810 }
811 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
812 {
813 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
814 struct pc87360_data *data = pc87360_update_device(dev);
815 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
816 }
817 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
818 {
819 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
820 struct pc87360_data *data = pc87360_update_device(dev);
821 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
822 }
823 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
824 size_t count)
825 {
826 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
827 struct pc87360_data *data = dev_get_drvdata(dev);
828 long val = simple_strtol(buf, NULL, 10);
829
830 mutex_lock(&data->update_lock);
831 data->temp_min[attr->index] = TEMP_TO_REG(val);
832 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
833 data->temp_min[attr->index]);
834 mutex_unlock(&data->update_lock);
835 return count;
836 }
837 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
838 size_t count)
839 {
840 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
841 struct pc87360_data *data = dev_get_drvdata(dev);
842 long val = simple_strtol(buf, NULL, 10);
843
844 mutex_lock(&data->update_lock);
845 data->temp_max[attr->index] = TEMP_TO_REG(val);
846 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
847 data->temp_max[attr->index]);
848 mutex_unlock(&data->update_lock);
849 return count;
850 }
851 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
852 size_t count)
853 {
854 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
855 struct pc87360_data *data = dev_get_drvdata(dev);
856 long val = simple_strtol(buf, NULL, 10);
857
858 mutex_lock(&data->update_lock);
859 data->temp_crit[attr->index] = TEMP_TO_REG(val);
860 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
861 data->temp_crit[attr->index]);
862 mutex_unlock(&data->update_lock);
863 return count;
864 }
865
866 static struct sensor_device_attribute temp_input[] = {
867 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
868 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
869 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
870 };
871 static struct sensor_device_attribute temp_status[] = {
872 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
873 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
874 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
875 };
876 static struct sensor_device_attribute temp_min[] = {
877 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
878 show_temp_min, set_temp_min, 0),
879 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
880 show_temp_min, set_temp_min, 1),
881 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
882 show_temp_min, set_temp_min, 2),
883 };
884 static struct sensor_device_attribute temp_max[] = {
885 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
886 show_temp_max, set_temp_max, 0),
887 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
888 show_temp_max, set_temp_max, 1),
889 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
890 show_temp_max, set_temp_max, 2),
891 };
892 static struct sensor_device_attribute temp_crit[] = {
893 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
894 show_temp_crit, set_temp_crit, 0),
895 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
896 show_temp_crit, set_temp_crit, 1),
897 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
898 show_temp_crit, set_temp_crit, 2),
899 };
900
901 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
902 {
903 struct pc87360_data *data = pc87360_update_device(dev);
904 return sprintf(buf, "%u\n", data->temp_alarms);
905 }
906 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
907
908 /* show_temp_min/max_alarm() reads data from the per-channel status
909 register (sec 12.3.7), not the temp event status registers (sec
910 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */
911
912 static ssize_t show_temp_min_alarm(struct device *dev,
913 struct device_attribute *devattr, char *buf)
914 {
915 struct pc87360_data *data = pc87360_update_device(dev);
916 unsigned nr = to_sensor_dev_attr(devattr)->index;
917
918 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
919 }
920 static ssize_t show_temp_max_alarm(struct device *dev,
921 struct device_attribute *devattr, char *buf)
922 {
923 struct pc87360_data *data = pc87360_update_device(dev);
924 unsigned nr = to_sensor_dev_attr(devattr)->index;
925
926 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
927 }
928 static ssize_t show_temp_crit_alarm(struct device *dev,
929 struct device_attribute *devattr, char *buf)
930 {
931 struct pc87360_data *data = pc87360_update_device(dev);
932 unsigned nr = to_sensor_dev_attr(devattr)->index;
933
934 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
935 }
936
937 static struct sensor_device_attribute temp_min_alarm[] = {
938 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
939 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
940 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
941 };
942 static struct sensor_device_attribute temp_max_alarm[] = {
943 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
944 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
945 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
946 };
947 static struct sensor_device_attribute temp_crit_alarm[] = {
948 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
949 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
950 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
951 };
952
953 #define TEMP_FAULT 0x40 /* open diode */
954 static ssize_t show_temp_fault(struct device *dev,
955 struct device_attribute *devattr, char *buf)
956 {
957 struct pc87360_data *data = pc87360_update_device(dev);
958 unsigned nr = to_sensor_dev_attr(devattr)->index;
959
960 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
961 }
962 static struct sensor_device_attribute temp_fault[] = {
963 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
964 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
965 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
966 };
967
968 #define TEMP_UNIT_ATTRS(X) \
969 &temp_input[X].dev_attr.attr, \
970 &temp_status[X].dev_attr.attr, \
971 &temp_min[X].dev_attr.attr, \
972 &temp_max[X].dev_attr.attr, \
973 &temp_crit[X].dev_attr.attr, \
974 &temp_min_alarm[X].dev_attr.attr, \
975 &temp_max_alarm[X].dev_attr.attr, \
976 &temp_crit_alarm[X].dev_attr.attr, \
977 &temp_fault[X].dev_attr.attr
978
979 static struct attribute * pc8736x_temp_attr_array[] = {
980 TEMP_UNIT_ATTRS(0),
981 TEMP_UNIT_ATTRS(1),
982 TEMP_UNIT_ATTRS(2),
983 /* include the few miscellaneous atts here */
984 &dev_attr_alarms_temp.attr,
985 NULL
986 };
987 static const struct attribute_group pc8736x_temp_group = {
988 .attrs = pc8736x_temp_attr_array,
989 };
990
991 static ssize_t show_name(struct device *dev,
992 struct device_attribute *devattr, char *buf)
993 {
994 struct pc87360_data *data = dev_get_drvdata(dev);
995 return sprintf(buf, "%s\n", data->name);
996 }
997 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
998
999 /*
1000 * Device detection, registration and update
1001 */
1002
1003 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1004 {
1005 u16 val;
1006 int i;
1007 int nrdev; /* logical device count */
1008
1009 /* No superio_enter */
1010
1011 /* Identify device */
1012 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1013 switch (val) {
1014 case 0xE1: /* PC87360 */
1015 case 0xE8: /* PC87363 */
1016 case 0xE4: /* PC87364 */
1017 nrdev = 1;
1018 break;
1019 case 0xE5: /* PC87365 */
1020 case 0xE9: /* PC87366 */
1021 nrdev = 3;
1022 break;
1023 default:
1024 superio_exit(sioaddr);
1025 return -ENODEV;
1026 }
1027 /* Remember the device id */
1028 *devid = val;
1029
1030 for (i = 0; i < nrdev; i++) {
1031 /* select logical device */
1032 superio_outb(sioaddr, DEV, logdev[i]);
1033
1034 val = superio_inb(sioaddr, ACT);
1035 if (!(val & 0x01)) {
1036 pr_info("Device 0x%02x not activated\n", logdev[i]);
1037 continue;
1038 }
1039
1040 val = (superio_inb(sioaddr, BASE) << 8)
1041 | superio_inb(sioaddr, BASE + 1);
1042 if (!val) {
1043 pr_info("Base address not set for device 0x%02x\n",
1044 logdev[i]);
1045 continue;
1046 }
1047
1048 addresses[i] = val;
1049
1050 if (i==0) { /* Fans */
1051 confreg[0] = superio_inb(sioaddr, 0xF0);
1052 confreg[1] = superio_inb(sioaddr, 0xF1);
1053
1054 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1055 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1056 (confreg[0] >> 4) & 1);
1057 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1058 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1059 (confreg[0] >> 7) & 1);
1060 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1061 confreg[1] & 1, (confreg[1] >> 1) & 1,
1062 (confreg[1] >> 2) & 1);
1063 } else if (i==1) { /* Voltages */
1064 /* Are we using thermistors? */
1065 if (*devid == 0xE9) { /* PC87366 */
1066 /* These registers are not logical-device
1067 specific, just that we won't need them if
1068 we don't use the VLM device */
1069 confreg[2] = superio_inb(sioaddr, 0x2B);
1070 confreg[3] = superio_inb(sioaddr, 0x25);
1071
1072 if (confreg[2] & 0x40) {
1073 pr_info("Using thermistors for "
1074 "temperature monitoring\n");
1075 }
1076 if (confreg[3] & 0xE0) {
1077 pr_info("VID inputs routed (mode %u)\n",
1078 confreg[3] >> 5);
1079 }
1080 }
1081 }
1082 }
1083
1084 superio_exit(sioaddr);
1085 return 0;
1086 }
1087
1088 static int __devinit pc87360_probe(struct platform_device *pdev)
1089 {
1090 int i;
1091 struct pc87360_data *data;
1092 int err = 0;
1093 const char *name = "pc87360";
1094 int use_thermistors = 0;
1095 struct device *dev = &pdev->dev;
1096
1097 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1098 return -ENOMEM;
1099
1100 data->fannr = 2;
1101 data->innr = 0;
1102 data->tempnr = 0;
1103
1104 switch (devid) {
1105 case 0xe8:
1106 name = "pc87363";
1107 break;
1108 case 0xe4:
1109 name = "pc87364";
1110 data->fannr = 3;
1111 break;
1112 case 0xe5:
1113 name = "pc87365";
1114 data->fannr = extra_isa[0] ? 3 : 0;
1115 data->innr = extra_isa[1] ? 11 : 0;
1116 data->tempnr = extra_isa[2] ? 2 : 0;
1117 break;
1118 case 0xe9:
1119 name = "pc87366";
1120 data->fannr = extra_isa[0] ? 3 : 0;
1121 data->innr = extra_isa[1] ? 14 : 0;
1122 data->tempnr = extra_isa[2] ? 3 : 0;
1123 break;
1124 }
1125
1126 data->name = name;
1127 data->valid = 0;
1128 mutex_init(&data->lock);
1129 mutex_init(&data->update_lock);
1130 platform_set_drvdata(pdev, data);
1131
1132 for (i = 0; i < LDNI_MAX; i++) {
1133 if (((data->address[i] = extra_isa[i]))
1134 && !request_region(extra_isa[i], PC87360_EXTENT,
1135 pc87360_driver.driver.name)) {
1136 dev_err(dev, "Region 0x%x-0x%x already "
1137 "in use!\n", extra_isa[i],
1138 extra_isa[i]+PC87360_EXTENT-1);
1139 for (i--; i >= 0; i--)
1140 release_region(extra_isa[i], PC87360_EXTENT);
1141 err = -EBUSY;
1142 goto ERROR1;
1143 }
1144 }
1145
1146 /* Retrieve the fans configuration from Super-I/O space */
1147 if (data->fannr)
1148 data->fan_conf = confreg[0] | (confreg[1] << 8);
1149
1150 /* Use the correct reference voltage
1151 Unless both the VLM and the TMS logical devices agree to
1152 use an external Vref, the internal one is used. */
1153 if (data->innr) {
1154 i = pc87360_read_value(data, LD_IN, NO_BANK,
1155 PC87365_REG_IN_CONFIG);
1156 if (data->tempnr) {
1157 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1158 PC87365_REG_TEMP_CONFIG);
1159 }
1160 data->in_vref = (i&0x02) ? 3025 : 2966;
1161 dev_dbg(dev, "Using %s reference voltage\n",
1162 (i&0x02) ? "external" : "internal");
1163
1164 data->vid_conf = confreg[3];
1165 data->vrm = vid_which_vrm();
1166 }
1167
1168 /* Fan clock dividers may be needed before any data is read */
1169 for (i = 0; i < data->fannr; i++) {
1170 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1171 data->fan_status[i] = pc87360_read_value(data,
1172 LD_FAN, NO_BANK,
1173 PC87360_REG_FAN_STATUS(i));
1174 }
1175
1176 if (init > 0) {
1177 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1178 use_thermistors = confreg[2] & 0x40;
1179
1180 pc87360_init_device(pdev, use_thermistors);
1181 }
1182
1183 /* Register all-or-nothing sysfs groups */
1184
1185 if (data->innr &&
1186 (err = sysfs_create_group(&dev->kobj,
1187 &pc8736x_vin_group)))
1188 goto ERROR3;
1189
1190 if (data->innr == 14 &&
1191 (err = sysfs_create_group(&dev->kobj,
1192 &pc8736x_therm_group)))
1193 goto ERROR3;
1194
1195 /* create device attr-files for varying sysfs groups */
1196
1197 if (data->tempnr) {
1198 for (i = 0; i < data->tempnr; i++) {
1199 if ((err = device_create_file(dev,
1200 &temp_input[i].dev_attr))
1201 || (err = device_create_file(dev,
1202 &temp_min[i].dev_attr))
1203 || (err = device_create_file(dev,
1204 &temp_max[i].dev_attr))
1205 || (err = device_create_file(dev,
1206 &temp_crit[i].dev_attr))
1207 || (err = device_create_file(dev,
1208 &temp_status[i].dev_attr))
1209 || (err = device_create_file(dev,
1210 &temp_min_alarm[i].dev_attr))
1211 || (err = device_create_file(dev,
1212 &temp_max_alarm[i].dev_attr))
1213 || (err = device_create_file(dev,
1214 &temp_crit_alarm[i].dev_attr))
1215 || (err = device_create_file(dev,
1216 &temp_fault[i].dev_attr)))
1217 goto ERROR3;
1218 }
1219 if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1220 goto ERROR3;
1221 }
1222
1223 for (i = 0; i < data->fannr; i++) {
1224 if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1225 && ((err = device_create_file(dev,
1226 &fan_input[i].dev_attr))
1227 || (err = device_create_file(dev,
1228 &fan_min[i].dev_attr))
1229 || (err = device_create_file(dev,
1230 &fan_div[i].dev_attr))
1231 || (err = device_create_file(dev,
1232 &fan_status[i].dev_attr))))
1233 goto ERROR3;
1234
1235 if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1236 && (err = device_create_file(dev, &pwm[i].dev_attr)))
1237 goto ERROR3;
1238 }
1239
1240 if ((err = device_create_file(dev, &dev_attr_name)))
1241 goto ERROR3;
1242
1243 data->hwmon_dev = hwmon_device_register(dev);
1244 if (IS_ERR(data->hwmon_dev)) {
1245 err = PTR_ERR(data->hwmon_dev);
1246 goto ERROR3;
1247 }
1248 return 0;
1249
1250 ERROR3:
1251 device_remove_file(dev, &dev_attr_name);
1252 /* can still remove groups whose members were added individually */
1253 sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1254 sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1255 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1256 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1257 for (i = 0; i < 3; i++) {
1258 if (data->address[i]) {
1259 release_region(data->address[i], PC87360_EXTENT);
1260 }
1261 }
1262 ERROR1:
1263 kfree(data);
1264 return err;
1265 }
1266
1267 static int __devexit pc87360_remove(struct platform_device *pdev)
1268 {
1269 struct pc87360_data *data = platform_get_drvdata(pdev);
1270 int i;
1271
1272 hwmon_device_unregister(data->hwmon_dev);
1273
1274 device_remove_file(&pdev->dev, &dev_attr_name);
1275 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1276 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1277 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1278 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1279
1280 for (i = 0; i < 3; i++) {
1281 if (data->address[i]) {
1282 release_region(data->address[i], PC87360_EXTENT);
1283 }
1284 }
1285 kfree(data);
1286
1287 return 0;
1288 }
1289
1290 /* ldi is the logical device index
1291 bank is for voltages and temperatures only */
1292 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1293 u8 reg)
1294 {
1295 int res;
1296
1297 mutex_lock(&(data->lock));
1298 if (bank != NO_BANK)
1299 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1300 res = inb_p(data->address[ldi] + reg);
1301 mutex_unlock(&(data->lock));
1302
1303 return res;
1304 }
1305
1306 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1307 u8 reg, u8 value)
1308 {
1309 mutex_lock(&(data->lock));
1310 if (bank != NO_BANK)
1311 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1312 outb_p(value, data->address[ldi] + reg);
1313 mutex_unlock(&(data->lock));
1314 }
1315
1316 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1317 #define CHAN_CNVRTD 0x80 /* new data ready */
1318 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1319 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1320 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1321
1322 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1323 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1324 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1325
1326 static void pc87360_init_device(struct platform_device *pdev,
1327 int use_thermistors)
1328 {
1329 struct pc87360_data *data = platform_get_drvdata(pdev);
1330 int i, nr;
1331 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1332 const u8 init_temp[3] = { 2, 2, 1 };
1333 u8 reg;
1334
1335 if (init >= 2 && data->innr) {
1336 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1337 PC87365_REG_IN_CONVRATE);
1338 dev_info(&pdev->dev, "VLM conversion set to "
1339 "1s period, 160us delay\n");
1340 pc87360_write_value(data, LD_IN, NO_BANK,
1341 PC87365_REG_IN_CONVRATE,
1342 (reg & 0xC0) | 0x11);
1343 }
1344
1345 nr = data->innr < 11 ? data->innr : 11;
1346 for (i = 0; i < nr; i++) {
1347 reg = pc87360_read_value(data, LD_IN, i,
1348 PC87365_REG_IN_STATUS);
1349 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1350 if (init >= init_in[i]) {
1351 /* Forcibly enable voltage channel */
1352 if (!(reg & CHAN_ENA)) {
1353 dev_dbg(&pdev->dev, "Forcibly "
1354 "enabling in%d\n", i);
1355 pc87360_write_value(data, LD_IN, i,
1356 PC87365_REG_IN_STATUS,
1357 (reg & 0x68) | 0x87);
1358 }
1359 }
1360 }
1361
1362 /* We can't blindly trust the Super-I/O space configuration bit,
1363 most BIOS won't set it properly */
1364 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1365 for (i = 11; i < data->innr; i++) {
1366 reg = pc87360_read_value(data, LD_IN, i,
1367 PC87365_REG_TEMP_STATUS);
1368 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1369 /* thermistors are temp[4-6], measured on vin[11-14] */
1370 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1371 }
1372 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1373
1374 i = use_thermistors ? 2 : 0;
1375 for (; i < data->tempnr; i++) {
1376 reg = pc87360_read_value(data, LD_TEMP, i,
1377 PC87365_REG_TEMP_STATUS);
1378 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i+1, reg);
1379 if (init >= init_temp[i]) {
1380 /* Forcibly enable temperature channel */
1381 if (!(reg & CHAN_ENA)) {
1382 dev_dbg(&pdev->dev, "Forcibly "
1383 "enabling temp%d\n", i+1);
1384 pc87360_write_value(data, LD_TEMP, i,
1385 PC87365_REG_TEMP_STATUS,
1386 0xCF);
1387 }
1388 }
1389 }
1390
1391 if (use_thermistors) {
1392 for (i = 11; i < data->innr; i++) {
1393 if (init >= init_in[i]) {
1394 /* The pin may already be used by thermal
1395 diodes */
1396 reg = pc87360_read_value(data, LD_TEMP,
1397 (i-11)/2, PC87365_REG_TEMP_STATUS);
1398 if (reg & CHAN_ENA) {
1399 dev_dbg(&pdev->dev, "Skipping "
1400 "temp%d, pin already in use "
1401 "by temp%d\n", i-7, (i-11)/2);
1402 continue;
1403 }
1404
1405 /* Forcibly enable thermistor channel */
1406 reg = pc87360_read_value(data, LD_IN, i,
1407 PC87365_REG_IN_STATUS);
1408 if (!(reg & CHAN_ENA)) {
1409 dev_dbg(&pdev->dev, "Forcibly "
1410 "enabling temp%d\n", i-7);
1411 pc87360_write_value(data, LD_IN, i,
1412 PC87365_REG_TEMP_STATUS,
1413 (reg & 0x60) | 0x8F);
1414 }
1415 }
1416 }
1417 }
1418
1419 if (data->innr) {
1420 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1421 PC87365_REG_IN_CONFIG);
1422 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1423 if (reg & CHAN_ENA) {
1424 dev_dbg(&pdev->dev, "Forcibly "
1425 "enabling monitoring (VLM)\n");
1426 pc87360_write_value(data, LD_IN, NO_BANK,
1427 PC87365_REG_IN_CONFIG,
1428 reg & 0xFE);
1429 }
1430 }
1431
1432 if (data->tempnr) {
1433 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1434 PC87365_REG_TEMP_CONFIG);
1435 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1436 if (reg & CHAN_ENA) {
1437 dev_dbg(&pdev->dev, "Forcibly enabling "
1438 "monitoring (TMS)\n");
1439 pc87360_write_value(data, LD_TEMP, NO_BANK,
1440 PC87365_REG_TEMP_CONFIG,
1441 reg & 0xFE);
1442 }
1443
1444 if (init >= 2) {
1445 /* Chip config as documented by National Semi. */
1446 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1447 /* We voluntarily omit the bank here, in case the
1448 sequence itself matters. It shouldn't be a problem,
1449 since nobody else is supposed to access the
1450 device at that point. */
1451 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1452 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1453 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1454 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1455 }
1456 }
1457 }
1458
1459 static void pc87360_autodiv(struct device *dev, int nr)
1460 {
1461 struct pc87360_data *data = dev_get_drvdata(dev);
1462 u8 old_min = data->fan_min[nr];
1463
1464 /* Increase clock divider if needed and possible */
1465 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1466 || (data->fan[nr] >= 224)) { /* next to overflow */
1467 if ((data->fan_status[nr] & 0x60) != 0x60) {
1468 data->fan_status[nr] += 0x20;
1469 data->fan_min[nr] >>= 1;
1470 data->fan[nr] >>= 1;
1471 dev_dbg(dev, "Increasing "
1472 "clock divider to %d for fan %d\n",
1473 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1474 }
1475 } else {
1476 /* Decrease clock divider if possible */
1477 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1478 && data->fan[nr] < 85 /* bad accuracy */
1479 && (data->fan_status[nr] & 0x60) != 0x00) {
1480 data->fan_status[nr] -= 0x20;
1481 data->fan_min[nr] <<= 1;
1482 data->fan[nr] <<= 1;
1483 dev_dbg(dev, "Decreasing "
1484 "clock divider to %d for fan %d\n",
1485 FAN_DIV_FROM_REG(data->fan_status[nr]),
1486 nr+1);
1487 }
1488 }
1489
1490 /* Write new fan min if it changed */
1491 if (old_min != data->fan_min[nr]) {
1492 pc87360_write_value(data, LD_FAN, NO_BANK,
1493 PC87360_REG_FAN_MIN(nr),
1494 data->fan_min[nr]);
1495 }
1496 }
1497
1498 static struct pc87360_data *pc87360_update_device(struct device *dev)
1499 {
1500 struct pc87360_data *data = dev_get_drvdata(dev);
1501 u8 i;
1502
1503 mutex_lock(&data->update_lock);
1504
1505 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1506 dev_dbg(dev, "Data update\n");
1507
1508 /* Fans */
1509 for (i = 0; i < data->fannr; i++) {
1510 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1511 data->fan_status[i] =
1512 pc87360_read_value(data, LD_FAN,
1513 NO_BANK, PC87360_REG_FAN_STATUS(i));
1514 data->fan[i] = pc87360_read_value(data, LD_FAN,
1515 NO_BANK, PC87360_REG_FAN(i));
1516 data->fan_min[i] = pc87360_read_value(data,
1517 LD_FAN, NO_BANK,
1518 PC87360_REG_FAN_MIN(i));
1519 /* Change clock divider if needed */
1520 pc87360_autodiv(dev, i);
1521 /* Clear bits and write new divider */
1522 pc87360_write_value(data, LD_FAN, NO_BANK,
1523 PC87360_REG_FAN_STATUS(i),
1524 data->fan_status[i]);
1525 }
1526 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1527 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1528 NO_BANK, PC87360_REG_PWM(i));
1529 }
1530
1531 /* Voltages */
1532 for (i = 0; i < data->innr; i++) {
1533 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1534 PC87365_REG_IN_STATUS);
1535 /* Clear bits */
1536 pc87360_write_value(data, LD_IN, i,
1537 PC87365_REG_IN_STATUS,
1538 data->in_status[i]);
1539 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1540 data->in[i] = pc87360_read_value(data, LD_IN,
1541 i, PC87365_REG_IN);
1542 }
1543 if (data->in_status[i] & CHAN_ENA) {
1544 data->in_min[i] = pc87360_read_value(data,
1545 LD_IN, i,
1546 PC87365_REG_IN_MIN);
1547 data->in_max[i] = pc87360_read_value(data,
1548 LD_IN, i,
1549 PC87365_REG_IN_MAX);
1550 if (i >= 11)
1551 data->in_crit[i-11] =
1552 pc87360_read_value(data, LD_IN,
1553 i, PC87365_REG_TEMP_CRIT);
1554 }
1555 }
1556 if (data->innr) {
1557 data->in_alarms = pc87360_read_value(data, LD_IN,
1558 NO_BANK, PC87365_REG_IN_ALARMS1)
1559 | ((pc87360_read_value(data, LD_IN,
1560 NO_BANK, PC87365_REG_IN_ALARMS2)
1561 & 0x07) << 8);
1562 data->vid = (data->vid_conf & 0xE0) ?
1563 pc87360_read_value(data, LD_IN,
1564 NO_BANK, PC87365_REG_VID) : 0x1F;
1565 }
1566
1567 /* Temperatures */
1568 for (i = 0; i < data->tempnr; i++) {
1569 data->temp_status[i] = pc87360_read_value(data,
1570 LD_TEMP, i,
1571 PC87365_REG_TEMP_STATUS);
1572 /* Clear bits */
1573 pc87360_write_value(data, LD_TEMP, i,
1574 PC87365_REG_TEMP_STATUS,
1575 data->temp_status[i]);
1576 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1577 data->temp[i] = pc87360_read_value(data,
1578 LD_TEMP, i,
1579 PC87365_REG_TEMP);
1580 }
1581 if (data->temp_status[i] & CHAN_ENA) {
1582 data->temp_min[i] = pc87360_read_value(data,
1583 LD_TEMP, i,
1584 PC87365_REG_TEMP_MIN);
1585 data->temp_max[i] = pc87360_read_value(data,
1586 LD_TEMP, i,
1587 PC87365_REG_TEMP_MAX);
1588 data->temp_crit[i] = pc87360_read_value(data,
1589 LD_TEMP, i,
1590 PC87365_REG_TEMP_CRIT);
1591 }
1592 }
1593 if (data->tempnr) {
1594 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1595 NO_BANK, PC87365_REG_TEMP_ALARMS)
1596 & 0x3F;
1597 }
1598
1599 data->last_updated = jiffies;
1600 data->valid = 1;
1601 }
1602
1603 mutex_unlock(&data->update_lock);
1604
1605 return data;
1606 }
1607
1608 static int __init pc87360_device_add(unsigned short address)
1609 {
1610 struct resource res[3];
1611 int err, i, res_count;
1612
1613 pdev = platform_device_alloc("pc87360", address);
1614 if (!pdev) {
1615 err = -ENOMEM;
1616 pr_err("Device allocation failed\n");
1617 goto exit;
1618 }
1619
1620 memset(res, 0, 3 * sizeof(struct resource));
1621 res_count = 0;
1622 for (i = 0; i < 3; i++) {
1623 if (!extra_isa[i])
1624 continue;
1625 res[res_count].start = extra_isa[i];
1626 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1627 res[res_count].name = "pc87360",
1628 res[res_count].flags = IORESOURCE_IO,
1629
1630 err = acpi_check_resource_conflict(&res[res_count]);
1631 if (err)
1632 goto exit_device_put;
1633
1634 res_count++;
1635 }
1636
1637 err = platform_device_add_resources(pdev, res, res_count);
1638 if (err) {
1639 pr_err("Device resources addition failed (%d)\n", err);
1640 goto exit_device_put;
1641 }
1642
1643 err = platform_device_add(pdev);
1644 if (err) {
1645 pr_err("Device addition failed (%d)\n", err);
1646 goto exit_device_put;
1647 }
1648
1649 return 0;
1650
1651 exit_device_put:
1652 platform_device_put(pdev);
1653 exit:
1654 return err;
1655 }
1656
1657 static int __init pc87360_init(void)
1658 {
1659 int err, i;
1660 unsigned short address = 0;
1661
1662 if (pc87360_find(0x2e, &devid, extra_isa)
1663 && pc87360_find(0x4e, &devid, extra_isa)) {
1664 pr_warn("PC8736x not detected, module not inserted\n");
1665 return -ENODEV;
1666 }
1667
1668 /* Arbitrarily pick one of the addresses */
1669 for (i = 0; i < 3; i++) {
1670 if (extra_isa[i] != 0x0000) {
1671 address = extra_isa[i];
1672 break;
1673 }
1674 }
1675
1676 if (address == 0x0000) {
1677 pr_warn("No active logical device, module not inserted\n");
1678 return -ENODEV;
1679 }
1680
1681 err = platform_driver_register(&pc87360_driver);
1682 if (err)
1683 goto exit;
1684
1685 /* Sets global pdev as a side effect */
1686 err = pc87360_device_add(address);
1687 if (err)
1688 goto exit_driver;
1689
1690 return 0;
1691
1692 exit_driver:
1693 platform_driver_unregister(&pc87360_driver);
1694 exit:
1695 return err;
1696 }
1697
1698 static void __exit pc87360_exit(void)
1699 {
1700 platform_device_unregister(pdev);
1701 platform_driver_unregister(&pc87360_driver);
1702 }
1703
1704
1705 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1706 MODULE_DESCRIPTION("PC8736x hardware monitor");
1707 MODULE_LICENSE("GPL");
1708
1709 module_init(pc87360_init);
1710 module_exit(pc87360_exit);