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ocfs2: Enable refcount tree support.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / hwmon / pc87360.c
blobfb052fea374401cfdb7edd78c662f6cda33292b4
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 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/slab.h>
39 #include <linux/jiffies.h>
40 #include <linux/platform_device.h>
41 #include <linux/hwmon.h>
42 #include <linux/hwmon-sysfs.h>
43 #include <linux/hwmon-vid.h>
44 #include <linux/err.h>
45 #include <linux/mutex.h>
46 #include <linux/acpi.h>
47 #include <asm/io.h>
48
49 static u8 devid;
50 static struct platform_device *pdev;
51 static unsigned short extra_isa[3];
52 static u8 confreg[4];
53
54 static int init = 1;
55 module_param(init, int, 0);
56 MODULE_PARM_DESC(init,
57 "Chip initialization level:\n"
58 " 0: None\n"
59 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
60 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
61 " 3: Forcibly enable all voltage and temperature channels, including in9");
62
63 static unsigned short force_id;
64 module_param(force_id, ushort, 0);
65 MODULE_PARM_DESC(force_id, "Override the detected device ID");
66
67 /*
68 * Super-I/O registers and operations
69 */
70
71 #define DEV 0x07 /* Register: Logical device select */
72 #define DEVID 0x20 /* Register: Device ID */
73 #define ACT 0x30 /* Register: Device activation */
74 #define BASE 0x60 /* Register: Base address */
75
76 #define FSCM 0x09 /* Logical device: fans */
77 #define VLM 0x0d /* Logical device: voltages */
78 #define TMS 0x0e /* Logical device: temperatures */
79 #define LDNI_MAX 3
80 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
81
82 #define LD_FAN 0
83 #define LD_IN 1
84 #define LD_TEMP 2
85
86 static inline void superio_outb(int sioaddr, int reg, int val)
87 {
88 outb(reg, sioaddr);
89 outb(val, sioaddr+1);
90 }
91
92 static inline int superio_inb(int sioaddr, int reg)
93 {
94 outb(reg, sioaddr);
95 return inb(sioaddr+1);
96 }
97
98 static inline void superio_exit(int sioaddr)
99 {
100 outb(0x02, sioaddr);
101 outb(0x02, sioaddr+1);
102 }
103
104 /*
105 * Logical devices
106 */
107
108 #define PC87360_EXTENT 0x10
109 #define PC87365_REG_BANK 0x09
110 #define NO_BANK 0xff
111
112 /*
113 * Fan registers and conversions
114 */
115
116 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
117 #define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
118 #define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
119 #define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
120 #define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
121 #define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
122
123 #define FAN_FROM_REG(val,div) ((val) == 0 ? 0: \
124 480000 / ((val)*(div)))
125 #define FAN_TO_REG(val,div) ((val) <= 100 ? 0 : \
126 480000 / ((val)*(div)))
127 #define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
128 #define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
129
130 #define FAN_CONFIG_MONITOR(val,nr) (((val) >> (2 + nr * 3)) & 1)
131 #define FAN_CONFIG_CONTROL(val,nr) (((val) >> (3 + nr * 3)) & 1)
132 #define FAN_CONFIG_INVERT(val,nr) (((val) >> (4 + nr * 3)) & 1)
133
134 #define PWM_FROM_REG(val,inv) ((inv) ? 255 - (val) : (val))
135 static inline u8 PWM_TO_REG(int val, int inv)
136 {
137 if (inv)
138 val = 255 - val;
139 if (val < 0)
140 return 0;
141 if (val > 255)
142 return 255;
143 return val;
144 }
145
146 /*
147 * Voltage registers and conversions
148 */
149
150 #define PC87365_REG_IN_CONVRATE 0x07
151 #define PC87365_REG_IN_CONFIG 0x08
152 #define PC87365_REG_IN 0x0B
153 #define PC87365_REG_IN_MIN 0x0D
154 #define PC87365_REG_IN_MAX 0x0C
155 #define PC87365_REG_IN_STATUS 0x0A
156 #define PC87365_REG_IN_ALARMS1 0x00
157 #define PC87365_REG_IN_ALARMS2 0x01
158 #define PC87365_REG_VID 0x06
159
160 #define IN_FROM_REG(val,ref) (((val) * (ref) + 128) / 256)
161 #define IN_TO_REG(val,ref) ((val) < 0 ? 0 : \
162 (val)*256 >= (ref)*255 ? 255: \
163 ((val) * 256 + (ref)/2) / (ref))
164
165 /*
166 * Temperature registers and conversions
167 */
168
169 #define PC87365_REG_TEMP_CONFIG 0x08
170 #define PC87365_REG_TEMP 0x0B
171 #define PC87365_REG_TEMP_MIN 0x0D
172 #define PC87365_REG_TEMP_MAX 0x0C
173 #define PC87365_REG_TEMP_CRIT 0x0E
174 #define PC87365_REG_TEMP_STATUS 0x0A
175 #define PC87365_REG_TEMP_ALARMS 0x00
176
177 #define TEMP_FROM_REG(val) ((val) * 1000)
178 #define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
179 (val) > 127000 ? 127 : \
180 (val) < 0 ? ((val) - 500) / 1000 : \
181 ((val) + 500) / 1000)
182
183 /*
184 * Device data
185 */
186
187 struct pc87360_data {
188 const char *name;
189 struct device *hwmon_dev;
190 struct mutex lock;
191 struct mutex update_lock;
192 char valid; /* !=0 if following fields are valid */
193 unsigned long last_updated; /* In jiffies */
194
195 int address[3];
196
197 u8 fannr, innr, tempnr;
198
199 u8 fan[3]; /* Register value */
200 u8 fan_min[3]; /* Register value */
201 u8 fan_status[3]; /* Register value */
202 u8 pwm[3]; /* Register value */
203 u16 fan_conf; /* Configuration register values, combined */
204
205 u16 in_vref; /* 1 mV/bit */
206 u8 in[14]; /* Register value */
207 u8 in_min[14]; /* Register value */
208 u8 in_max[14]; /* Register value */
209 u8 in_crit[3]; /* Register value */
210 u8 in_status[14]; /* Register value */
211 u16 in_alarms; /* Register values, combined, masked */
212 u8 vid_conf; /* Configuration register value */
213 u8 vrm;
214 u8 vid; /* Register value */
215
216 s8 temp[3]; /* Register value */
217 s8 temp_min[3]; /* Register value */
218 s8 temp_max[3]; /* Register value */
219 s8 temp_crit[3]; /* Register value */
220 u8 temp_status[3]; /* Register value */
221 u8 temp_alarms; /* Register value, masked */
222 };
223
224 /*
225 * Functions declaration
226 */
227
228 static int pc87360_probe(struct platform_device *pdev);
229 static int __devexit pc87360_remove(struct platform_device *pdev);
230
231 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
232 u8 reg);
233 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
234 u8 reg, u8 value);
235 static void pc87360_init_device(struct platform_device *pdev,
236 int use_thermistors);
237 static struct pc87360_data *pc87360_update_device(struct device *dev);
238
239 /*
240 * Driver data
241 */
242
243 static struct platform_driver pc87360_driver = {
244 .driver = {
245 .owner = THIS_MODULE,
246 .name = "pc87360",
247 },
248 .probe = pc87360_probe,
249 .remove = __devexit_p(pc87360_remove),
250 };
251
252 /*
253 * Sysfs stuff
254 */
255
256 static ssize_t show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
257 {
258 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
259 struct pc87360_data *data = pc87360_update_device(dev);
260 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
261 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
262 }
263 static ssize_t show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
264 {
265 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
266 struct pc87360_data *data = pc87360_update_device(dev);
267 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
268 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
269 }
270 static ssize_t show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
271 {
272 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
273 struct pc87360_data *data = pc87360_update_device(dev);
274 return sprintf(buf, "%u\n",
275 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
276 }
277 static ssize_t show_fan_status(struct device *dev, struct device_attribute *devattr, char *buf)
278 {
279 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
280 struct pc87360_data *data = pc87360_update_device(dev);
281 return sprintf(buf, "%u\n",
282 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
283 }
284 static ssize_t set_fan_min(struct device *dev, struct device_attribute *devattr, const char *buf,
285 size_t count)
286 {
287 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
288 struct pc87360_data *data = dev_get_drvdata(dev);
289 long fan_min = simple_strtol(buf, NULL, 10);
290
291 mutex_lock(&data->update_lock);
292 fan_min = FAN_TO_REG(fan_min, FAN_DIV_FROM_REG(data->fan_status[attr->index]));
293
294 /* If it wouldn't fit, change clock divisor */
295 while (fan_min > 255
296 && (data->fan_status[attr->index] & 0x60) != 0x60) {
297 fan_min >>= 1;
298 data->fan[attr->index] >>= 1;
299 data->fan_status[attr->index] += 0x20;
300 }
301 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
302 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_MIN(attr->index),
303 data->fan_min[attr->index]);
304
305 /* Write new divider, preserve alarm bits */
306 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_FAN_STATUS(attr->index),
307 data->fan_status[attr->index] & 0xF9);
308 mutex_unlock(&data->update_lock);
309
310 return count;
311 }
312
313 static struct sensor_device_attribute fan_input[] = {
314 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0),
315 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1),
316 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2),
317 };
318 static struct sensor_device_attribute fan_status[] = {
319 SENSOR_ATTR(fan1_status, S_IRUGO, show_fan_status, NULL, 0),
320 SENSOR_ATTR(fan2_status, S_IRUGO, show_fan_status, NULL, 1),
321 SENSOR_ATTR(fan3_status, S_IRUGO, show_fan_status, NULL, 2),
322 };
323 static struct sensor_device_attribute fan_div[] = {
324 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
325 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
326 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
327 };
328 static struct sensor_device_attribute fan_min[] = {
329 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 0),
330 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 1),
331 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, set_fan_min, 2),
332 };
333
334 #define FAN_UNIT_ATTRS(X) \
335 &fan_input[X].dev_attr.attr, \
336 &fan_status[X].dev_attr.attr, \
337 &fan_div[X].dev_attr.attr, \
338 &fan_min[X].dev_attr.attr
339
340 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
341 {
342 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
343 struct pc87360_data *data = pc87360_update_device(dev);
344 return sprintf(buf, "%u\n",
345 PWM_FROM_REG(data->pwm[attr->index],
346 FAN_CONFIG_INVERT(data->fan_conf,
347 attr->index)));
348 }
349 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, const char *buf,
350 size_t count)
351 {
352 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
353 struct pc87360_data *data = dev_get_drvdata(dev);
354 long val = simple_strtol(buf, NULL, 10);
355
356 mutex_lock(&data->update_lock);
357 data->pwm[attr->index] = PWM_TO_REG(val,
358 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
359 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
360 data->pwm[attr->index]);
361 mutex_unlock(&data->update_lock);
362 return count;
363 }
364
365 static struct sensor_device_attribute pwm[] = {
366 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0),
367 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1),
368 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2),
369 };
370
371 static struct attribute * pc8736x_fan_attr_array[] = {
372 FAN_UNIT_ATTRS(0),
373 FAN_UNIT_ATTRS(1),
374 FAN_UNIT_ATTRS(2),
375 &pwm[0].dev_attr.attr,
376 &pwm[1].dev_attr.attr,
377 &pwm[2].dev_attr.attr,
378 NULL
379 };
380 static const struct attribute_group pc8736x_fan_group = {
381 .attrs = pc8736x_fan_attr_array,
382 };
383
384 static ssize_t show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
385 {
386 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
387 struct pc87360_data *data = pc87360_update_device(dev);
388 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
389 data->in_vref));
390 }
391 static ssize_t show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
392 {
393 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
394 struct pc87360_data *data = pc87360_update_device(dev);
395 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
396 data->in_vref));
397 }
398 static ssize_t show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
399 {
400 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
401 struct pc87360_data *data = pc87360_update_device(dev);
402 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
403 data->in_vref));
404 }
405 static ssize_t show_in_status(struct device *dev, struct device_attribute *devattr, char *buf)
406 {
407 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
408 struct pc87360_data *data = pc87360_update_device(dev);
409 return sprintf(buf, "%u\n", data->in_status[attr->index]);
410 }
411 static ssize_t set_in_min(struct device *dev, struct device_attribute *devattr, const char *buf,
412 size_t count)
413 {
414 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
415 struct pc87360_data *data = dev_get_drvdata(dev);
416 long val = simple_strtol(buf, NULL, 10);
417
418 mutex_lock(&data->update_lock);
419 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
420 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
421 data->in_min[attr->index]);
422 mutex_unlock(&data->update_lock);
423 return count;
424 }
425 static ssize_t set_in_max(struct device *dev, struct device_attribute *devattr, const char *buf,
426 size_t count)
427 {
428 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
429 struct pc87360_data *data = dev_get_drvdata(dev);
430 long val = simple_strtol(buf, NULL, 10);
431
432 mutex_lock(&data->update_lock);
433 data->in_max[attr->index] = IN_TO_REG(val,
434 data->in_vref);
435 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
436 data->in_max[attr->index]);
437 mutex_unlock(&data->update_lock);
438 return count;
439 }
440
441 static struct sensor_device_attribute in_input[] = {
442 SENSOR_ATTR(in0_input, S_IRUGO, show_in_input, NULL, 0),
443 SENSOR_ATTR(in1_input, S_IRUGO, show_in_input, NULL, 1),
444 SENSOR_ATTR(in2_input, S_IRUGO, show_in_input, NULL, 2),
445 SENSOR_ATTR(in3_input, S_IRUGO, show_in_input, NULL, 3),
446 SENSOR_ATTR(in4_input, S_IRUGO, show_in_input, NULL, 4),
447 SENSOR_ATTR(in5_input, S_IRUGO, show_in_input, NULL, 5),
448 SENSOR_ATTR(in6_input, S_IRUGO, show_in_input, NULL, 6),
449 SENSOR_ATTR(in7_input, S_IRUGO, show_in_input, NULL, 7),
450 SENSOR_ATTR(in8_input, S_IRUGO, show_in_input, NULL, 8),
451 SENSOR_ATTR(in9_input, S_IRUGO, show_in_input, NULL, 9),
452 SENSOR_ATTR(in10_input, S_IRUGO, show_in_input, NULL, 10),
453 };
454 static struct sensor_device_attribute in_status[] = {
455 SENSOR_ATTR(in0_status, S_IRUGO, show_in_status, NULL, 0),
456 SENSOR_ATTR(in1_status, S_IRUGO, show_in_status, NULL, 1),
457 SENSOR_ATTR(in2_status, S_IRUGO, show_in_status, NULL, 2),
458 SENSOR_ATTR(in3_status, S_IRUGO, show_in_status, NULL, 3),
459 SENSOR_ATTR(in4_status, S_IRUGO, show_in_status, NULL, 4),
460 SENSOR_ATTR(in5_status, S_IRUGO, show_in_status, NULL, 5),
461 SENSOR_ATTR(in6_status, S_IRUGO, show_in_status, NULL, 6),
462 SENSOR_ATTR(in7_status, S_IRUGO, show_in_status, NULL, 7),
463 SENSOR_ATTR(in8_status, S_IRUGO, show_in_status, NULL, 8),
464 SENSOR_ATTR(in9_status, S_IRUGO, show_in_status, NULL, 9),
465 SENSOR_ATTR(in10_status, S_IRUGO, show_in_status, NULL, 10),
466 };
467 static struct sensor_device_attribute in_min[] = {
468 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 0),
469 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 1),
470 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 2),
471 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 3),
472 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 4),
473 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 5),
474 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 6),
475 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 7),
476 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 8),
477 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 9),
478 SENSOR_ATTR(in10_min, S_IWUSR | S_IRUGO, show_in_min, set_in_min, 10),
479 };
480 static struct sensor_device_attribute in_max[] = {
481 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 0),
482 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 1),
483 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 2),
484 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 3),
485 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 4),
486 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 5),
487 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 6),
488 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 7),
489 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 8),
490 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 9),
491 SENSOR_ATTR(in10_max, S_IWUSR | S_IRUGO, show_in_max, set_in_max, 10),
492 };
493
494 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
495 #define CHAN_ALM_MIN 0x02 /* min limit crossed */
496 #define CHAN_ALM_MAX 0x04 /* max limit exceeded */
497 #define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
498
499 /* show_in_min/max_alarm() reads data from the per-channel status
500 register (sec 11.5.12), not the vin event status registers (sec
501 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
502
503 static ssize_t show_in_min_alarm(struct device *dev,
504 struct device_attribute *devattr, char *buf)
505 {
506 struct pc87360_data *data = pc87360_update_device(dev);
507 unsigned nr = to_sensor_dev_attr(devattr)->index;
508
509 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
510 }
511 static ssize_t show_in_max_alarm(struct device *dev,
512 struct device_attribute *devattr, char *buf)
513 {
514 struct pc87360_data *data = pc87360_update_device(dev);
515 unsigned nr = to_sensor_dev_attr(devattr)->index;
516
517 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
518 }
519
520 static struct sensor_device_attribute in_min_alarm[] = {
521 SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
522 SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
523 SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
524 SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
525 SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
526 SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
527 SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
528 SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
529 SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
530 SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
531 SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
532 };
533 static struct sensor_device_attribute in_max_alarm[] = {
534 SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
535 SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
536 SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
537 SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
538 SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
539 SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
540 SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
541 SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
542 SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
543 SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
544 SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
545 };
546
547 #define VIN_UNIT_ATTRS(X) \
548 &in_input[X].dev_attr.attr, \
549 &in_status[X].dev_attr.attr, \
550 &in_min[X].dev_attr.attr, \
551 &in_max[X].dev_attr.attr, \
552 &in_min_alarm[X].dev_attr.attr, \
553 &in_max_alarm[X].dev_attr.attr
554
555 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
556 {
557 struct pc87360_data *data = pc87360_update_device(dev);
558 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
559 }
560 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
561
562 static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
563 {
564 struct pc87360_data *data = dev_get_drvdata(dev);
565 return sprintf(buf, "%u\n", data->vrm);
566 }
567 static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
568 {
569 struct pc87360_data *data = dev_get_drvdata(dev);
570 data->vrm = simple_strtoul(buf, NULL, 10);
571 return count;
572 }
573 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm);
574
575 static ssize_t show_in_alarms(struct device *dev, struct device_attribute *attr, char *buf)
576 {
577 struct pc87360_data *data = pc87360_update_device(dev);
578 return sprintf(buf, "%u\n", data->in_alarms);
579 }
580 static DEVICE_ATTR(alarms_in, S_IRUGO, show_in_alarms, NULL);
581
582 static struct attribute *pc8736x_vin_attr_array[] = {
583 VIN_UNIT_ATTRS(0),
584 VIN_UNIT_ATTRS(1),
585 VIN_UNIT_ATTRS(2),
586 VIN_UNIT_ATTRS(3),
587 VIN_UNIT_ATTRS(4),
588 VIN_UNIT_ATTRS(5),
589 VIN_UNIT_ATTRS(6),
590 VIN_UNIT_ATTRS(7),
591 VIN_UNIT_ATTRS(8),
592 VIN_UNIT_ATTRS(9),
593 VIN_UNIT_ATTRS(10),
594 &dev_attr_cpu0_vid.attr,
595 &dev_attr_vrm.attr,
596 &dev_attr_alarms_in.attr,
597 NULL
598 };
599 static const struct attribute_group pc8736x_vin_group = {
600 .attrs = pc8736x_vin_attr_array,
601 };
602
603 static ssize_t show_therm_input(struct device *dev, struct device_attribute *devattr, char *buf)
604 {
605 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
606 struct pc87360_data *data = pc87360_update_device(dev);
607 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
608 data->in_vref));
609 }
610 static ssize_t show_therm_min(struct device *dev, struct device_attribute *devattr, char *buf)
611 {
612 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
613 struct pc87360_data *data = pc87360_update_device(dev);
614 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
615 data->in_vref));
616 }
617 static ssize_t show_therm_max(struct device *dev, struct device_attribute *devattr, char *buf)
618 {
619 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
620 struct pc87360_data *data = pc87360_update_device(dev);
621 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
622 data->in_vref));
623 }
624 static ssize_t show_therm_crit(struct device *dev, struct device_attribute *devattr, char *buf)
625 {
626 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
627 struct pc87360_data *data = pc87360_update_device(dev);
628 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
629 data->in_vref));
630 }
631 static ssize_t show_therm_status(struct device *dev, struct device_attribute *devattr, char *buf)
632 {
633 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
634 struct pc87360_data *data = pc87360_update_device(dev);
635 return sprintf(buf, "%u\n", data->in_status[attr->index]);
636 }
637 static ssize_t set_therm_min(struct device *dev, struct device_attribute *devattr, const char *buf,
638 size_t count)
639 {
640 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
641 struct pc87360_data *data = dev_get_drvdata(dev);
642 long val = simple_strtol(buf, NULL, 10);
643
644 mutex_lock(&data->update_lock);
645 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
646 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
647 data->in_min[attr->index]);
648 mutex_unlock(&data->update_lock);
649 return count;
650 }
651 static ssize_t set_therm_max(struct device *dev, struct device_attribute *devattr, const char *buf,
652 size_t count)
653 {
654 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
655 struct pc87360_data *data = dev_get_drvdata(dev);
656 long val = simple_strtol(buf, NULL, 10);
657
658 mutex_lock(&data->update_lock);
659 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
660 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
661 data->in_max[attr->index]);
662 mutex_unlock(&data->update_lock);
663 return count;
664 }
665 static ssize_t set_therm_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
666 size_t count)
667 {
668 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
669 struct pc87360_data *data = dev_get_drvdata(dev);
670 long val = simple_strtol(buf, NULL, 10);
671
672 mutex_lock(&data->update_lock);
673 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
674 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
675 data->in_crit[attr->index-11]);
676 mutex_unlock(&data->update_lock);
677 return count;
678 }
679
680 /* the +11 term below reflects the fact that VLM units 11,12,13 are
681 used in the chip to measure voltage across the thermistors
682 */
683 static struct sensor_device_attribute therm_input[] = {
684 SENSOR_ATTR(temp4_input, S_IRUGO, show_therm_input, NULL, 0+11),
685 SENSOR_ATTR(temp5_input, S_IRUGO, show_therm_input, NULL, 1+11),
686 SENSOR_ATTR(temp6_input, S_IRUGO, show_therm_input, NULL, 2+11),
687 };
688 static struct sensor_device_attribute therm_status[] = {
689 SENSOR_ATTR(temp4_status, S_IRUGO, show_therm_status, NULL, 0+11),
690 SENSOR_ATTR(temp5_status, S_IRUGO, show_therm_status, NULL, 1+11),
691 SENSOR_ATTR(temp6_status, S_IRUGO, show_therm_status, NULL, 2+11),
692 };
693 static struct sensor_device_attribute therm_min[] = {
694 SENSOR_ATTR(temp4_min, S_IRUGO | S_IWUSR,
695 show_therm_min, set_therm_min, 0+11),
696 SENSOR_ATTR(temp5_min, S_IRUGO | S_IWUSR,
697 show_therm_min, set_therm_min, 1+11),
698 SENSOR_ATTR(temp6_min, S_IRUGO | S_IWUSR,
699 show_therm_min, set_therm_min, 2+11),
700 };
701 static struct sensor_device_attribute therm_max[] = {
702 SENSOR_ATTR(temp4_max, S_IRUGO | S_IWUSR,
703 show_therm_max, set_therm_max, 0+11),
704 SENSOR_ATTR(temp5_max, S_IRUGO | S_IWUSR,
705 show_therm_max, set_therm_max, 1+11),
706 SENSOR_ATTR(temp6_max, S_IRUGO | S_IWUSR,
707 show_therm_max, set_therm_max, 2+11),
708 };
709 static struct sensor_device_attribute therm_crit[] = {
710 SENSOR_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
711 show_therm_crit, set_therm_crit, 0+11),
712 SENSOR_ATTR(temp5_crit, S_IRUGO | S_IWUSR,
713 show_therm_crit, set_therm_crit, 1+11),
714 SENSOR_ATTR(temp6_crit, S_IRUGO | S_IWUSR,
715 show_therm_crit, set_therm_crit, 2+11),
716 };
717
718 /* show_therm_min/max_alarm() reads data from the per-channel voltage
719 status register (sec 11.5.12) */
720
721 static ssize_t show_therm_min_alarm(struct device *dev,
722 struct device_attribute *devattr, char *buf)
723 {
724 struct pc87360_data *data = pc87360_update_device(dev);
725 unsigned nr = to_sensor_dev_attr(devattr)->index;
726
727 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
728 }
729 static ssize_t show_therm_max_alarm(struct device *dev,
730 struct device_attribute *devattr, char *buf)
731 {
732 struct pc87360_data *data = pc87360_update_device(dev);
733 unsigned nr = to_sensor_dev_attr(devattr)->index;
734
735 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
736 }
737 static ssize_t show_therm_crit_alarm(struct device *dev,
738 struct device_attribute *devattr, char *buf)
739 {
740 struct pc87360_data *data = pc87360_update_device(dev);
741 unsigned nr = to_sensor_dev_attr(devattr)->index;
742
743 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
744 }
745
746 static struct sensor_device_attribute therm_min_alarm[] = {
747 SENSOR_ATTR(temp4_min_alarm, S_IRUGO,
748 show_therm_min_alarm, NULL, 0+11),
749 SENSOR_ATTR(temp5_min_alarm, S_IRUGO,
750 show_therm_min_alarm, NULL, 1+11),
751 SENSOR_ATTR(temp6_min_alarm, S_IRUGO,
752 show_therm_min_alarm, NULL, 2+11),
753 };
754 static struct sensor_device_attribute therm_max_alarm[] = {
755 SENSOR_ATTR(temp4_max_alarm, S_IRUGO,
756 show_therm_max_alarm, NULL, 0+11),
757 SENSOR_ATTR(temp5_max_alarm, S_IRUGO,
758 show_therm_max_alarm, NULL, 1+11),
759 SENSOR_ATTR(temp6_max_alarm, S_IRUGO,
760 show_therm_max_alarm, NULL, 2+11),
761 };
762 static struct sensor_device_attribute therm_crit_alarm[] = {
763 SENSOR_ATTR(temp4_crit_alarm, S_IRUGO,
764 show_therm_crit_alarm, NULL, 0+11),
765 SENSOR_ATTR(temp5_crit_alarm, S_IRUGO,
766 show_therm_crit_alarm, NULL, 1+11),
767 SENSOR_ATTR(temp6_crit_alarm, S_IRUGO,
768 show_therm_crit_alarm, NULL, 2+11),
769 };
770
771 #define THERM_UNIT_ATTRS(X) \
772 &therm_input[X].dev_attr.attr, \
773 &therm_status[X].dev_attr.attr, \
774 &therm_min[X].dev_attr.attr, \
775 &therm_max[X].dev_attr.attr, \
776 &therm_crit[X].dev_attr.attr, \
777 &therm_min_alarm[X].dev_attr.attr, \
778 &therm_max_alarm[X].dev_attr.attr, \
779 &therm_crit_alarm[X].dev_attr.attr
780
781 static struct attribute * pc8736x_therm_attr_array[] = {
782 THERM_UNIT_ATTRS(0),
783 THERM_UNIT_ATTRS(1),
784 THERM_UNIT_ATTRS(2),
785 NULL
786 };
787 static const struct attribute_group pc8736x_therm_group = {
788 .attrs = pc8736x_therm_attr_array,
789 };
790
791 static ssize_t show_temp_input(struct device *dev, struct device_attribute *devattr, char *buf)
792 {
793 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
794 struct pc87360_data *data = pc87360_update_device(dev);
795 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
796 }
797 static ssize_t show_temp_min(struct device *dev, struct device_attribute *devattr, char *buf)
798 {
799 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
800 struct pc87360_data *data = pc87360_update_device(dev);
801 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
802 }
803 static ssize_t show_temp_max(struct device *dev, struct device_attribute *devattr, char *buf)
804 {
805 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
806 struct pc87360_data *data = pc87360_update_device(dev);
807 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
808 }
809 static ssize_t show_temp_crit(struct device *dev, struct device_attribute *devattr, char *buf)
810 {
811 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
812 struct pc87360_data *data = pc87360_update_device(dev);
813 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[attr->index]));
814 }
815 static ssize_t show_temp_status(struct device *dev, struct device_attribute *devattr, char *buf)
816 {
817 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
818 struct pc87360_data *data = pc87360_update_device(dev);
819 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
820 }
821 static ssize_t set_temp_min(struct device *dev, struct device_attribute *devattr, const char *buf,
822 size_t count)
823 {
824 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
825 struct pc87360_data *data = dev_get_drvdata(dev);
826 long val = simple_strtol(buf, NULL, 10);
827
828 mutex_lock(&data->update_lock);
829 data->temp_min[attr->index] = TEMP_TO_REG(val);
830 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
831 data->temp_min[attr->index]);
832 mutex_unlock(&data->update_lock);
833 return count;
834 }
835 static ssize_t set_temp_max(struct device *dev, struct device_attribute *devattr, const char *buf,
836 size_t count)
837 {
838 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
839 struct pc87360_data *data = dev_get_drvdata(dev);
840 long val = simple_strtol(buf, NULL, 10);
841
842 mutex_lock(&data->update_lock);
843 data->temp_max[attr->index] = TEMP_TO_REG(val);
844 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
845 data->temp_max[attr->index]);
846 mutex_unlock(&data->update_lock);
847 return count;
848 }
849 static ssize_t set_temp_crit(struct device *dev, struct device_attribute *devattr, const char *buf,
850 size_t count)
851 {
852 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
853 struct pc87360_data *data = dev_get_drvdata(dev);
854 long val = simple_strtol(buf, NULL, 10);
855
856 mutex_lock(&data->update_lock);
857 data->temp_crit[attr->index] = TEMP_TO_REG(val);
858 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
859 data->temp_crit[attr->index]);
860 mutex_unlock(&data->update_lock);
861 return count;
862 }
863
864 static struct sensor_device_attribute temp_input[] = {
865 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0),
866 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1),
867 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2),
868 };
869 static struct sensor_device_attribute temp_status[] = {
870 SENSOR_ATTR(temp1_status, S_IRUGO, show_temp_status, NULL, 0),
871 SENSOR_ATTR(temp2_status, S_IRUGO, show_temp_status, NULL, 1),
872 SENSOR_ATTR(temp3_status, S_IRUGO, show_temp_status, NULL, 2),
873 };
874 static struct sensor_device_attribute temp_min[] = {
875 SENSOR_ATTR(temp1_min, S_IRUGO | S_IWUSR,
876 show_temp_min, set_temp_min, 0),
877 SENSOR_ATTR(temp2_min, S_IRUGO | S_IWUSR,
878 show_temp_min, set_temp_min, 1),
879 SENSOR_ATTR(temp3_min, S_IRUGO | S_IWUSR,
880 show_temp_min, set_temp_min, 2),
881 };
882 static struct sensor_device_attribute temp_max[] = {
883 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR,
884 show_temp_max, set_temp_max, 0),
885 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR,
886 show_temp_max, set_temp_max, 1),
887 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR,
888 show_temp_max, set_temp_max, 2),
889 };
890 static struct sensor_device_attribute temp_crit[] = {
891 SENSOR_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
892 show_temp_crit, set_temp_crit, 0),
893 SENSOR_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
894 show_temp_crit, set_temp_crit, 1),
895 SENSOR_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
896 show_temp_crit, set_temp_crit, 2),
897 };
898
899 static ssize_t show_temp_alarms(struct device *dev, struct device_attribute *attr, char *buf)
900 {
901 struct pc87360_data *data = pc87360_update_device(dev);
902 return sprintf(buf, "%u\n", data->temp_alarms);
903 }
904 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_temp_alarms, NULL);
905
906 /* show_temp_min/max_alarm() reads data from the per-channel status
907 register (sec 12.3.7), not the temp event status registers (sec
908 12.3.2) that show_temp_alarm() reads (via data->temp_alarms) */
909
910 static ssize_t show_temp_min_alarm(struct device *dev,
911 struct device_attribute *devattr, char *buf)
912 {
913 struct pc87360_data *data = pc87360_update_device(dev);
914 unsigned nr = to_sensor_dev_attr(devattr)->index;
915
916 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
917 }
918 static ssize_t show_temp_max_alarm(struct device *dev,
919 struct device_attribute *devattr, char *buf)
920 {
921 struct pc87360_data *data = pc87360_update_device(dev);
922 unsigned nr = to_sensor_dev_attr(devattr)->index;
923
924 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
925 }
926 static ssize_t show_temp_crit_alarm(struct device *dev,
927 struct device_attribute *devattr, char *buf)
928 {
929 struct pc87360_data *data = pc87360_update_device(dev);
930 unsigned nr = to_sensor_dev_attr(devattr)->index;
931
932 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
933 }
934
935 static struct sensor_device_attribute temp_min_alarm[] = {
936 SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 0),
937 SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 1),
938 SENSOR_ATTR(temp3_min_alarm, S_IRUGO, show_temp_min_alarm, NULL, 2),
939 };
940 static struct sensor_device_attribute temp_max_alarm[] = {
941 SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 0),
942 SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 1),
943 SENSOR_ATTR(temp3_max_alarm, S_IRUGO, show_temp_max_alarm, NULL, 2),
944 };
945 static struct sensor_device_attribute temp_crit_alarm[] = {
946 SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 0),
947 SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 1),
948 SENSOR_ATTR(temp3_crit_alarm, S_IRUGO, show_temp_crit_alarm, NULL, 2),
949 };
950
951 #define TEMP_FAULT 0x40 /* open diode */
952 static ssize_t show_temp_fault(struct device *dev,
953 struct device_attribute *devattr, char *buf)
954 {
955 struct pc87360_data *data = pc87360_update_device(dev);
956 unsigned nr = to_sensor_dev_attr(devattr)->index;
957
958 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
959 }
960 static struct sensor_device_attribute temp_fault[] = {
961 SENSOR_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0),
962 SENSOR_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1),
963 SENSOR_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2),
964 };
965
966 #define TEMP_UNIT_ATTRS(X) \
967 &temp_input[X].dev_attr.attr, \
968 &temp_status[X].dev_attr.attr, \
969 &temp_min[X].dev_attr.attr, \
970 &temp_max[X].dev_attr.attr, \
971 &temp_crit[X].dev_attr.attr, \
972 &temp_min_alarm[X].dev_attr.attr, \
973 &temp_max_alarm[X].dev_attr.attr, \
974 &temp_crit_alarm[X].dev_attr.attr, \
975 &temp_fault[X].dev_attr.attr
976
977 static struct attribute * pc8736x_temp_attr_array[] = {
978 TEMP_UNIT_ATTRS(0),
979 TEMP_UNIT_ATTRS(1),
980 TEMP_UNIT_ATTRS(2),
981 /* include the few miscellaneous atts here */
982 &dev_attr_alarms_temp.attr,
983 NULL
984 };
985 static const struct attribute_group pc8736x_temp_group = {
986 .attrs = pc8736x_temp_attr_array,
987 };
988
989 static ssize_t show_name(struct device *dev,
990 struct device_attribute *devattr, char *buf)
991 {
992 struct pc87360_data *data = dev_get_drvdata(dev);
993 return sprintf(buf, "%s\n", data->name);
994 }
995 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
996
997 /*
998 * Device detection, registration and update
999 */
1000
1001 static int __init pc87360_find(int sioaddr, u8 *devid, unsigned short *addresses)
1002 {
1003 u16 val;
1004 int i;
1005 int nrdev; /* logical device count */
1006
1007 /* No superio_enter */
1008
1009 /* Identify device */
1010 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1011 switch (val) {
1012 case 0xE1: /* PC87360 */
1013 case 0xE8: /* PC87363 */
1014 case 0xE4: /* PC87364 */
1015 nrdev = 1;
1016 break;
1017 case 0xE5: /* PC87365 */
1018 case 0xE9: /* PC87366 */
1019 nrdev = 3;
1020 break;
1021 default:
1022 superio_exit(sioaddr);
1023 return -ENODEV;
1024 }
1025 /* Remember the device id */
1026 *devid = val;
1027
1028 for (i = 0; i < nrdev; i++) {
1029 /* select logical device */
1030 superio_outb(sioaddr, DEV, logdev[i]);
1031
1032 val = superio_inb(sioaddr, ACT);
1033 if (!(val & 0x01)) {
1034 printk(KERN_INFO "pc87360: Device 0x%02x not "
1035 "activated\n", logdev[i]);
1036 continue;
1037 }
1038
1039 val = (superio_inb(sioaddr, BASE) << 8)
1040 | superio_inb(sioaddr, BASE + 1);
1041 if (!val) {
1042 printk(KERN_INFO "pc87360: Base address not set for "
1043 "device 0x%02x\n", logdev[i]);
1044 continue;
1045 }
1046
1047 addresses[i] = val;
1048
1049 if (i==0) { /* Fans */
1050 confreg[0] = superio_inb(sioaddr, 0xF0);
1051 confreg[1] = superio_inb(sioaddr, 0xF1);
1052
1053 #ifdef DEBUG
1054 printk(KERN_DEBUG "pc87360: Fan 1: mon=%d "
1055 "ctrl=%d inv=%d\n", (confreg[0]>>2)&1,
1056 (confreg[0]>>3)&1, (confreg[0]>>4)&1);
1057 printk(KERN_DEBUG "pc87360: Fan 2: mon=%d "
1058 "ctrl=%d inv=%d\n", (confreg[0]>>5)&1,
1059 (confreg[0]>>6)&1, (confreg[0]>>7)&1);
1060 printk(KERN_DEBUG "pc87360: Fan 3: mon=%d "
1061 "ctrl=%d inv=%d\n", confreg[1]&1,
1062 (confreg[1]>>1)&1, (confreg[1]>>2)&1);
1063 #endif
1064 } else if (i==1) { /* Voltages */
1065 /* Are we using thermistors? */
1066 if (*devid == 0xE9) { /* PC87366 */
1067 /* These registers are not logical-device
1068 specific, just that we won't need them if
1069 we don't use the VLM device */
1070 confreg[2] = superio_inb(sioaddr, 0x2B);
1071 confreg[3] = superio_inb(sioaddr, 0x25);
1072
1073 if (confreg[2] & 0x40) {
1074 printk(KERN_INFO "pc87360: Using "
1075 "thermistors for temperature "
1076 "monitoring\n");
1077 }
1078 if (confreg[3] & 0xE0) {
1079 printk(KERN_INFO "pc87360: VID "
1080 "inputs routed (mode %u)\n",
1081 confreg[3] >> 5);
1082 }
1083 }
1084 }
1085 }
1086
1087 superio_exit(sioaddr);
1088 return 0;
1089 }
1090
1091 static int __devinit pc87360_probe(struct platform_device *pdev)
1092 {
1093 int i;
1094 struct pc87360_data *data;
1095 int err = 0;
1096 const char *name = "pc87360";
1097 int use_thermistors = 0;
1098 struct device *dev = &pdev->dev;
1099
1100 if (!(data = kzalloc(sizeof(struct pc87360_data), GFP_KERNEL)))
1101 return -ENOMEM;
1102
1103 data->fannr = 2;
1104 data->innr = 0;
1105 data->tempnr = 0;
1106
1107 switch (devid) {
1108 case 0xe8:
1109 name = "pc87363";
1110 break;
1111 case 0xe4:
1112 name = "pc87364";
1113 data->fannr = 3;
1114 break;
1115 case 0xe5:
1116 name = "pc87365";
1117 data->fannr = extra_isa[0] ? 3 : 0;
1118 data->innr = extra_isa[1] ? 11 : 0;
1119 data->tempnr = extra_isa[2] ? 2 : 0;
1120 break;
1121 case 0xe9:
1122 name = "pc87366";
1123 data->fannr = extra_isa[0] ? 3 : 0;
1124 data->innr = extra_isa[1] ? 14 : 0;
1125 data->tempnr = extra_isa[2] ? 3 : 0;
1126 break;
1127 }
1128
1129 data->name = name;
1130 data->valid = 0;
1131 mutex_init(&data->lock);
1132 mutex_init(&data->update_lock);
1133 platform_set_drvdata(pdev, data);
1134
1135 for (i = 0; i < LDNI_MAX; i++) {
1136 if (((data->address[i] = extra_isa[i]))
1137 && !request_region(extra_isa[i], PC87360_EXTENT,
1138 pc87360_driver.driver.name)) {
1139 dev_err(dev, "Region 0x%x-0x%x already "
1140 "in use!\n", extra_isa[i],
1141 extra_isa[i]+PC87360_EXTENT-1);
1142 for (i--; i >= 0; i--)
1143 release_region(extra_isa[i], PC87360_EXTENT);
1144 err = -EBUSY;
1145 goto ERROR1;
1146 }
1147 }
1148
1149 /* Retrieve the fans configuration from Super-I/O space */
1150 if (data->fannr)
1151 data->fan_conf = confreg[0] | (confreg[1] << 8);
1152
1153 /* Use the correct reference voltage
1154 Unless both the VLM and the TMS logical devices agree to
1155 use an external Vref, the internal one is used. */
1156 if (data->innr) {
1157 i = pc87360_read_value(data, LD_IN, NO_BANK,
1158 PC87365_REG_IN_CONFIG);
1159 if (data->tempnr) {
1160 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1161 PC87365_REG_TEMP_CONFIG);
1162 }
1163 data->in_vref = (i&0x02) ? 3025 : 2966;
1164 dev_dbg(dev, "Using %s reference voltage\n",
1165 (i&0x02) ? "external" : "internal");
1166
1167 data->vid_conf = confreg[3];
1168 data->vrm = vid_which_vrm();
1169 }
1170
1171 /* Fan clock dividers may be needed before any data is read */
1172 for (i = 0; i < data->fannr; i++) {
1173 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1174 data->fan_status[i] = pc87360_read_value(data,
1175 LD_FAN, NO_BANK,
1176 PC87360_REG_FAN_STATUS(i));
1177 }
1178
1179 if (init > 0) {
1180 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1181 use_thermistors = confreg[2] & 0x40;
1182
1183 pc87360_init_device(pdev, use_thermistors);
1184 }
1185
1186 /* Register all-or-nothing sysfs groups */
1187
1188 if (data->innr &&
1189 (err = sysfs_create_group(&dev->kobj,
1190 &pc8736x_vin_group)))
1191 goto ERROR3;
1192
1193 if (data->innr == 14 &&
1194 (err = sysfs_create_group(&dev->kobj,
1195 &pc8736x_therm_group)))
1196 goto ERROR3;
1197
1198 /* create device attr-files for varying sysfs groups */
1199
1200 if (data->tempnr) {
1201 for (i = 0; i < data->tempnr; i++) {
1202 if ((err = device_create_file(dev,
1203 &temp_input[i].dev_attr))
1204 || (err = device_create_file(dev,
1205 &temp_min[i].dev_attr))
1206 || (err = device_create_file(dev,
1207 &temp_max[i].dev_attr))
1208 || (err = device_create_file(dev,
1209 &temp_crit[i].dev_attr))
1210 || (err = device_create_file(dev,
1211 &temp_status[i].dev_attr))
1212 || (err = device_create_file(dev,
1213 &temp_min_alarm[i].dev_attr))
1214 || (err = device_create_file(dev,
1215 &temp_max_alarm[i].dev_attr))
1216 || (err = device_create_file(dev,
1217 &temp_crit_alarm[i].dev_attr))
1218 || (err = device_create_file(dev,
1219 &temp_fault[i].dev_attr)))
1220 goto ERROR3;
1221 }
1222 if ((err = device_create_file(dev, &dev_attr_alarms_temp)))
1223 goto ERROR3;
1224 }
1225
1226 for (i = 0; i < data->fannr; i++) {
1227 if (FAN_CONFIG_MONITOR(data->fan_conf, i)
1228 && ((err = device_create_file(dev,
1229 &fan_input[i].dev_attr))
1230 || (err = device_create_file(dev,
1231 &fan_min[i].dev_attr))
1232 || (err = device_create_file(dev,
1233 &fan_div[i].dev_attr))
1234 || (err = device_create_file(dev,
1235 &fan_status[i].dev_attr))))
1236 goto ERROR3;
1237
1238 if (FAN_CONFIG_CONTROL(data->fan_conf, i)
1239 && (err = device_create_file(dev, &pwm[i].dev_attr)))
1240 goto ERROR3;
1241 }
1242
1243 if ((err = device_create_file(dev, &dev_attr_name)))
1244 goto ERROR3;
1245
1246 data->hwmon_dev = hwmon_device_register(dev);
1247 if (IS_ERR(data->hwmon_dev)) {
1248 err = PTR_ERR(data->hwmon_dev);
1249 goto ERROR3;
1250 }
1251 return 0;
1252
1253 ERROR3:
1254 device_remove_file(dev, &dev_attr_name);
1255 /* can still remove groups whose members were added individually */
1256 sysfs_remove_group(&dev->kobj, &pc8736x_temp_group);
1257 sysfs_remove_group(&dev->kobj, &pc8736x_fan_group);
1258 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1259 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1260 for (i = 0; i < 3; i++) {
1261 if (data->address[i]) {
1262 release_region(data->address[i], PC87360_EXTENT);
1263 }
1264 }
1265 ERROR1:
1266 kfree(data);
1267 return err;
1268 }
1269
1270 static int __devexit pc87360_remove(struct platform_device *pdev)
1271 {
1272 struct pc87360_data *data = platform_get_drvdata(pdev);
1273 int i;
1274
1275 hwmon_device_unregister(data->hwmon_dev);
1276
1277 device_remove_file(&pdev->dev, &dev_attr_name);
1278 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_temp_group);
1279 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_group);
1280 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_therm_group);
1281 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_vin_group);
1282
1283 for (i = 0; i < 3; i++) {
1284 if (data->address[i]) {
1285 release_region(data->address[i], PC87360_EXTENT);
1286 }
1287 }
1288 kfree(data);
1289
1290 return 0;
1291 }
1292
1293 /* ldi is the logical device index
1294 bank is for voltages and temperatures only */
1295 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1296 u8 reg)
1297 {
1298 int res;
1299
1300 mutex_lock(&(data->lock));
1301 if (bank != NO_BANK)
1302 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1303 res = inb_p(data->address[ldi] + reg);
1304 mutex_unlock(&(data->lock));
1305
1306 return res;
1307 }
1308
1309 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1310 u8 reg, u8 value)
1311 {
1312 mutex_lock(&(data->lock));
1313 if (bank != NO_BANK)
1314 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1315 outb_p(value, data->address[ldi] + reg);
1316 mutex_unlock(&(data->lock));
1317 }
1318
1319 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1320 #define CHAN_CNVRTD 0x80 /* new data ready */
1321 #define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1322 #define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1323 #define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1324
1325 #define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1326 #define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1327 #define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1328
1329 static void pc87360_init_device(struct platform_device *pdev,
1330 int use_thermistors)
1331 {
1332 struct pc87360_data *data = platform_get_drvdata(pdev);
1333 int i, nr;
1334 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1335 const u8 init_temp[3] = { 2, 2, 1 };
1336 u8 reg;
1337
1338 if (init >= 2 && data->innr) {
1339 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1340 PC87365_REG_IN_CONVRATE);
1341 dev_info(&pdev->dev, "VLM conversion set to "
1342 "1s period, 160us delay\n");
1343 pc87360_write_value(data, LD_IN, NO_BANK,
1344 PC87365_REG_IN_CONVRATE,
1345 (reg & 0xC0) | 0x11);
1346 }
1347
1348 nr = data->innr < 11 ? data->innr : 11;
1349 for (i = 0; i < nr; i++) {
1350 reg = pc87360_read_value(data, LD_IN, i,
1351 PC87365_REG_IN_STATUS);
1352 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1353 if (init >= init_in[i]) {
1354 /* Forcibly enable voltage channel */
1355 if (!(reg & CHAN_ENA)) {
1356 dev_dbg(&pdev->dev, "Forcibly "
1357 "enabling in%d\n", i);
1358 pc87360_write_value(data, LD_IN, i,
1359 PC87365_REG_IN_STATUS,
1360 (reg & 0x68) | 0x87);
1361 }
1362 }
1363 }
1364
1365 /* We can't blindly trust the Super-I/O space configuration bit,
1366 most BIOS won't set it properly */
1367 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1368 for (i = 11; i < data->innr; i++) {
1369 reg = pc87360_read_value(data, LD_IN, i,
1370 PC87365_REG_TEMP_STATUS);
1371 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1372 /* thermistors are temp[4-6], measured on vin[11-14] */
1373 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1374 }
1375 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1376
1377 i = use_thermistors ? 2 : 0;
1378 for (; i < data->tempnr; i++) {
1379 reg = pc87360_read_value(data, LD_TEMP, i,
1380 PC87365_REG_TEMP_STATUS);
1381 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i+1, reg);
1382 if (init >= init_temp[i]) {
1383 /* Forcibly enable temperature channel */
1384 if (!(reg & CHAN_ENA)) {
1385 dev_dbg(&pdev->dev, "Forcibly "
1386 "enabling temp%d\n", i+1);
1387 pc87360_write_value(data, LD_TEMP, i,
1388 PC87365_REG_TEMP_STATUS,
1389 0xCF);
1390 }
1391 }
1392 }
1393
1394 if (use_thermistors) {
1395 for (i = 11; i < data->innr; i++) {
1396 if (init >= init_in[i]) {
1397 /* The pin may already be used by thermal
1398 diodes */
1399 reg = pc87360_read_value(data, LD_TEMP,
1400 (i-11)/2, PC87365_REG_TEMP_STATUS);
1401 if (reg & CHAN_ENA) {
1402 dev_dbg(&pdev->dev, "Skipping "
1403 "temp%d, pin already in use "
1404 "by temp%d\n", i-7, (i-11)/2);
1405 continue;
1406 }
1407
1408 /* Forcibly enable thermistor channel */
1409 reg = pc87360_read_value(data, LD_IN, i,
1410 PC87365_REG_IN_STATUS);
1411 if (!(reg & CHAN_ENA)) {
1412 dev_dbg(&pdev->dev, "Forcibly "
1413 "enabling temp%d\n", i-7);
1414 pc87360_write_value(data, LD_IN, i,
1415 PC87365_REG_TEMP_STATUS,
1416 (reg & 0x60) | 0x8F);
1417 }
1418 }
1419 }
1420 }
1421
1422 if (data->innr) {
1423 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1424 PC87365_REG_IN_CONFIG);
1425 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1426 if (reg & CHAN_ENA) {
1427 dev_dbg(&pdev->dev, "Forcibly "
1428 "enabling monitoring (VLM)\n");
1429 pc87360_write_value(data, LD_IN, NO_BANK,
1430 PC87365_REG_IN_CONFIG,
1431 reg & 0xFE);
1432 }
1433 }
1434
1435 if (data->tempnr) {
1436 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1437 PC87365_REG_TEMP_CONFIG);
1438 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1439 if (reg & CHAN_ENA) {
1440 dev_dbg(&pdev->dev, "Forcibly enabling "
1441 "monitoring (TMS)\n");
1442 pc87360_write_value(data, LD_TEMP, NO_BANK,
1443 PC87365_REG_TEMP_CONFIG,
1444 reg & 0xFE);
1445 }
1446
1447 if (init >= 2) {
1448 /* Chip config as documented by National Semi. */
1449 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1450 /* We voluntarily omit the bank here, in case the
1451 sequence itself matters. It shouldn't be a problem,
1452 since nobody else is supposed to access the
1453 device at that point. */
1454 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1455 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1456 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1457 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1458 }
1459 }
1460 }
1461
1462 static void pc87360_autodiv(struct device *dev, int nr)
1463 {
1464 struct pc87360_data *data = dev_get_drvdata(dev);
1465 u8 old_min = data->fan_min[nr];
1466
1467 /* Increase clock divider if needed and possible */
1468 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1469 || (data->fan[nr] >= 224)) { /* next to overflow */
1470 if ((data->fan_status[nr] & 0x60) != 0x60) {
1471 data->fan_status[nr] += 0x20;
1472 data->fan_min[nr] >>= 1;
1473 data->fan[nr] >>= 1;
1474 dev_dbg(dev, "Increasing "
1475 "clock divider to %d for fan %d\n",
1476 FAN_DIV_FROM_REG(data->fan_status[nr]), nr+1);
1477 }
1478 } else {
1479 /* Decrease clock divider if possible */
1480 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1481 && data->fan[nr] < 85 /* bad accuracy */
1482 && (data->fan_status[nr] & 0x60) != 0x00) {
1483 data->fan_status[nr] -= 0x20;
1484 data->fan_min[nr] <<= 1;
1485 data->fan[nr] <<= 1;
1486 dev_dbg(dev, "Decreasing "
1487 "clock divider to %d for fan %d\n",
1488 FAN_DIV_FROM_REG(data->fan_status[nr]),
1489 nr+1);
1490 }
1491 }
1492
1493 /* Write new fan min if it changed */
1494 if (old_min != data->fan_min[nr]) {
1495 pc87360_write_value(data, LD_FAN, NO_BANK,
1496 PC87360_REG_FAN_MIN(nr),
1497 data->fan_min[nr]);
1498 }
1499 }
1500
1501 static struct pc87360_data *pc87360_update_device(struct device *dev)
1502 {
1503 struct pc87360_data *data = dev_get_drvdata(dev);
1504 u8 i;
1505
1506 mutex_lock(&data->update_lock);
1507
1508 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1509 dev_dbg(dev, "Data update\n");
1510
1511 /* Fans */
1512 for (i = 0; i < data->fannr; i++) {
1513 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1514 data->fan_status[i] =
1515 pc87360_read_value(data, LD_FAN,
1516 NO_BANK, PC87360_REG_FAN_STATUS(i));
1517 data->fan[i] = pc87360_read_value(data, LD_FAN,
1518 NO_BANK, PC87360_REG_FAN(i));
1519 data->fan_min[i] = pc87360_read_value(data,
1520 LD_FAN, NO_BANK,
1521 PC87360_REG_FAN_MIN(i));
1522 /* Change clock divider if needed */
1523 pc87360_autodiv(dev, i);
1524 /* Clear bits and write new divider */
1525 pc87360_write_value(data, LD_FAN, NO_BANK,
1526 PC87360_REG_FAN_STATUS(i),
1527 data->fan_status[i]);
1528 }
1529 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1530 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1531 NO_BANK, PC87360_REG_PWM(i));
1532 }
1533
1534 /* Voltages */
1535 for (i = 0; i < data->innr; i++) {
1536 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1537 PC87365_REG_IN_STATUS);
1538 /* Clear bits */
1539 pc87360_write_value(data, LD_IN, i,
1540 PC87365_REG_IN_STATUS,
1541 data->in_status[i]);
1542 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1543 data->in[i] = pc87360_read_value(data, LD_IN,
1544 i, PC87365_REG_IN);
1545 }
1546 if (data->in_status[i] & CHAN_ENA) {
1547 data->in_min[i] = pc87360_read_value(data,
1548 LD_IN, i,
1549 PC87365_REG_IN_MIN);
1550 data->in_max[i] = pc87360_read_value(data,
1551 LD_IN, i,
1552 PC87365_REG_IN_MAX);
1553 if (i >= 11)
1554 data->in_crit[i-11] =
1555 pc87360_read_value(data, LD_IN,
1556 i, PC87365_REG_TEMP_CRIT);
1557 }
1558 }
1559 if (data->innr) {
1560 data->in_alarms = pc87360_read_value(data, LD_IN,
1561 NO_BANK, PC87365_REG_IN_ALARMS1)
1562 | ((pc87360_read_value(data, LD_IN,
1563 NO_BANK, PC87365_REG_IN_ALARMS2)
1564 & 0x07) << 8);
1565 data->vid = (data->vid_conf & 0xE0) ?
1566 pc87360_read_value(data, LD_IN,
1567 NO_BANK, PC87365_REG_VID) : 0x1F;
1568 }
1569
1570 /* Temperatures */
1571 for (i = 0; i < data->tempnr; i++) {
1572 data->temp_status[i] = pc87360_read_value(data,
1573 LD_TEMP, i,
1574 PC87365_REG_TEMP_STATUS);
1575 /* Clear bits */
1576 pc87360_write_value(data, LD_TEMP, i,
1577 PC87365_REG_TEMP_STATUS,
1578 data->temp_status[i]);
1579 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1580 data->temp[i] = pc87360_read_value(data,
1581 LD_TEMP, i,
1582 PC87365_REG_TEMP);
1583 }
1584 if (data->temp_status[i] & CHAN_ENA) {
1585 data->temp_min[i] = pc87360_read_value(data,
1586 LD_TEMP, i,
1587 PC87365_REG_TEMP_MIN);
1588 data->temp_max[i] = pc87360_read_value(data,
1589 LD_TEMP, i,
1590 PC87365_REG_TEMP_MAX);
1591 data->temp_crit[i] = pc87360_read_value(data,
1592 LD_TEMP, i,
1593 PC87365_REG_TEMP_CRIT);
1594 }
1595 }
1596 if (data->tempnr) {
1597 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1598 NO_BANK, PC87365_REG_TEMP_ALARMS)
1599 & 0x3F;
1600 }
1601
1602 data->last_updated = jiffies;
1603 data->valid = 1;
1604 }
1605
1606 mutex_unlock(&data->update_lock);
1607
1608 return data;
1609 }
1610
1611 static int __init pc87360_device_add(unsigned short address)
1612 {
1613 struct resource res = {
1614 .name = "pc87360",
1615 .flags = IORESOURCE_IO,
1616 };
1617 int err, i;
1618
1619 pdev = platform_device_alloc("pc87360", address);
1620 if (!pdev) {
1621 err = -ENOMEM;
1622 printk(KERN_ERR "pc87360: Device allocation failed\n");
1623 goto exit;
1624 }
1625
1626 for (i = 0; i < 3; i++) {
1627 if (!extra_isa[i])
1628 continue;
1629 res.start = extra_isa[i];
1630 res.end = extra_isa[i] + PC87360_EXTENT - 1;
1631
1632 err = acpi_check_resource_conflict(&res);
1633 if (err)
1634 goto exit_device_put;
1635
1636 err = platform_device_add_resources(pdev, &res, 1);
1637 if (err) {
1638 printk(KERN_ERR "pc87360: Device resource[%d] "
1639 "addition failed (%d)\n", i, err);
1640 goto exit_device_put;
1641 }
1642 }
1643
1644 err = platform_device_add(pdev);
1645 if (err) {
1646 printk(KERN_ERR "pc87360: Device addition failed (%d)\n",
1647 err);
1648 goto exit_device_put;
1649 }
1650
1651 return 0;
1652
1653 exit_device_put:
1654 platform_device_put(pdev);
1655 exit:
1656 return err;
1657 }
1658
1659 static int __init pc87360_init(void)
1660 {
1661 int err, i;
1662 unsigned short address = 0;
1663
1664 if (pc87360_find(0x2e, &devid, extra_isa)
1665 && pc87360_find(0x4e, &devid, extra_isa)) {
1666 printk(KERN_WARNING "pc87360: PC8736x not detected, "
1667 "module not inserted.\n");
1668 return -ENODEV;
1669 }
1670
1671 /* Arbitrarily pick one of the addresses */
1672 for (i = 0; i < 3; i++) {
1673 if (extra_isa[i] != 0x0000) {
1674 address = extra_isa[i];
1675 break;
1676 }
1677 }
1678
1679 if (address == 0x0000) {
1680 printk(KERN_WARNING "pc87360: No active logical device, "
1681 "module not inserted.\n");
1682 return -ENODEV;
1683 }
1684
1685 err = platform_driver_register(&pc87360_driver);
1686 if (err)
1687 goto exit;
1688
1689 /* Sets global pdev as a side effect */
1690 err = pc87360_device_add(address);
1691 if (err)
1692 goto exit_driver;
1693
1694 return 0;
1695
1696 exit_driver:
1697 platform_driver_unregister(&pc87360_driver);
1698 exit:
1699 return err;
1700 }
1701
1702 static void __exit pc87360_exit(void)
1703 {
1704 platform_device_unregister(pdev);
1705 platform_driver_unregister(&pc87360_driver);
1706 }
1707
1708
1709 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1710 MODULE_DESCRIPTION("PC8736x hardware monitor");
1711 MODULE_LICENSE("GPL");
1712
1713 module_init(pc87360_init);
1714 module_exit(pc87360_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree