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23#include <linux/module.h>
24#include <linux/sched.h>
25#include <linux/init.h>
26#include <linux/slab.h>
27#include <linux/jiffies.h>
28#include <linux/mutex.h>
29#include <linux/err.h>
30#include <linux/delay.h>
31#include <linux/platform_device.h>
32#include <linux/hwmon.h>
33#include <linux/hwmon-sysfs.h>
34#include <linux/dmi.h>
35#include <asm/io.h>
36
37
38#define ABIT_UGURU_ALARM_BANK 0x20
39#define ABIT_UGURU_SENSOR_BANK1 0x21
40#define ABIT_UGURU_FAN_PWM 0x24
41#define ABIT_UGURU_SENSOR_BANK2 0x26
42
43#define ABIT_UGURU_MAX_BANK1_SENSORS 16
44
45
46
47#define ABIT_UGURU_MAX_BANK2_SENSORS 6
48
49#define ABIT_UGURU_MAX_PWMS 5
50
51#define ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE 0x01
52#define ABIT_UGURU_VOLT_HIGH_ALARM_ENABLE 0x02
53#define ABIT_UGURU_VOLT_LOW_ALARM_ENABLE 0x04
54#define ABIT_UGURU_TEMP_HIGH_ALARM_FLAG 0x10
55#define ABIT_UGURU_VOLT_HIGH_ALARM_FLAG 0x20
56#define ABIT_UGURU_VOLT_LOW_ALARM_FLAG 0x40
57
58#define ABIT_UGURU_FAN_LOW_ALARM_ENABLE 0x01
59
60#define ABIT_UGURU_BEEP_ENABLE 0x08
61#define ABIT_UGURU_SHUTDOWN_ENABLE 0x80
62
63#define ABIT_UGURU_FAN_PWM_ENABLE 0x80
64
65#define ABIT_UGURU_FAN_MAX 15300
66
67#define ABIT_UGURU_IN_SENSOR 0
68#define ABIT_UGURU_TEMP_SENSOR 1
69#define ABIT_UGURU_NC 2
70
71
72
73#define ABIT_UGURU_WAIT_TIMEOUT 125
74
75
76
77#define ABIT_UGURU_WAIT_TIMEOUT_SLEEP 5
78
79
80#define ABIT_UGURU_READY_TIMEOUT 5
81
82#define ABIT_UGURU_MAX_RETRIES 3
83#define ABIT_UGURU_RETRY_DELAY (HZ/5)
84
85#define ABIT_UGURU_MAX_TIMEOUTS 2
86
87#define ABIT_UGURU_NAME "abituguru"
88#define ABIT_UGURU_DEBUG(level, format, arg...) \
89 if (level <= verbose) \
90 printk(KERN_DEBUG ABIT_UGURU_NAME ": " format , ## arg)
91
92
93
94#define ABITUGURU_IN_NAMES_LENGTH (11 + 2 * 9 + 2 * 15 + 2 * 22 + 10 + 14)
95
96
97#define ABITUGURU_TEMP_NAMES_LENGTH (13 + 11 + 12 + 13 + 20 + 12 + 16)
98
99
100#define ABITUGURU_FAN_NAMES_LENGTH (11 + 9 + 11 + 18 + 10 + 14)
101
102
103#define ABITUGURU_PWM_NAMES_LENGTH (12 + 24 + 2 * 21 + 2 * 22)
104
105#define ABITUGURU_SYSFS_NAMES_LENGTH ( \
106 ABIT_UGURU_MAX_BANK1_SENSORS * ABITUGURU_IN_NAMES_LENGTH + \
107 ABIT_UGURU_MAX_BANK2_SENSORS * ABITUGURU_FAN_NAMES_LENGTH + \
108 ABIT_UGURU_MAX_PWMS * ABITUGURU_PWM_NAMES_LENGTH)
109
110
111
112
113
114
115#define ABIT_UGURU_BASE 0x00E0
116
117#define ABIT_UGURU_CMD 0x00
118
119#define ABIT_UGURU_DATA 0x04
120#define ABIT_UGURU_REGION_LENGTH 5
121
122#define ABIT_UGURU_STATUS_WRITE 0x00
123#define ABIT_UGURU_STATUS_READ 0x01
124#define ABIT_UGURU_STATUS_INPUT 0x08
125#define ABIT_UGURU_STATUS_READY 0x09
126
127
128
129static const int abituguru_bank1_max_value[2] = { 3494, 255000 };
130
131
132static const u8 abituguru_bank2_min_threshold = 5;
133static const u8 abituguru_bank2_max_threshold = 50;
134
135
136static const int abituguru_pwm_settings_multiplier[5] = { 0, 1, 1, 1000, 1000 };
137
138
139
140static const u8 abituguru_pwm_min[5] = { 0, 170, 170, 25, 25 };
141static const u8 abituguru_pwm_max[5] = { 0, 255, 255, 75, 75 };
142
143
144
145static int force;
146module_param(force, bool, 0);
147MODULE_PARM_DESC(force, "Set to one to force detection.");
148static int bank1_types[ABIT_UGURU_MAX_BANK1_SENSORS] = { -1, -1, -1, -1, -1,
149 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
150module_param_array(bank1_types, int, NULL, 0);
151MODULE_PARM_DESC(bank1_types, "Bank1 sensortype autodetection override:\n"
152 " -1 autodetect\n"
153 " 0 volt sensor\n"
154 " 1 temp sensor\n"
155 " 2 not connected");
156static int fan_sensors;
157module_param(fan_sensors, int, 0);
158MODULE_PARM_DESC(fan_sensors, "Number of fan sensors on the uGuru "
159 "(0 = autodetect)");
160static int pwms;
161module_param(pwms, int, 0);
162MODULE_PARM_DESC(pwms, "Number of PWMs on the uGuru "
163 "(0 = autodetect)");
164
165
166static int verbose = 2;
167module_param(verbose, int, 0644);
168MODULE_PARM_DESC(verbose, "How verbose should the driver be? (0-3):\n"
169 " 0 normal output\n"
170 " 1 + verbose error reporting\n"
171 " 2 + sensors type probing info\n"
172 " 3 + retryable error reporting");
173
174
175
176
177
178struct abituguru_data {
179 struct device *hwmon_dev;
180 struct mutex update_lock;
181 unsigned long last_updated;
182 unsigned short addr;
183 char uguru_ready;
184 unsigned char update_timeouts;
185
186
187
188
189
190
191
192 struct sensor_device_attribute_2 sysfs_attr[
193 ABIT_UGURU_MAX_BANK1_SENSORS * 9 +
194 ABIT_UGURU_MAX_BANK2_SENSORS * 6 + ABIT_UGURU_MAX_PWMS * 6];
195
196 char sysfs_names[ABITUGURU_SYSFS_NAMES_LENGTH];
197
198
199
200 u8 bank1_sensors[2];
201 u8 bank1_address[2][ABIT_UGURU_MAX_BANK1_SENSORS];
202 u8 bank1_value[ABIT_UGURU_MAX_BANK1_SENSORS];
203
204
205 u8 bank1_settings[ABIT_UGURU_MAX_BANK1_SENSORS][3];
206
207
208 int bank1_max_value[ABIT_UGURU_MAX_BANK1_SENSORS];
209
210
211 u8 bank2_sensors;
212 u8 bank2_value[ABIT_UGURU_MAX_BANK2_SENSORS];
213 u8 bank2_settings[ABIT_UGURU_MAX_BANK2_SENSORS][2];
214
215
216 u8 alarms[3];
217
218
219 u8 pwms;
220 u8 pwm_settings[ABIT_UGURU_MAX_PWMS][5];
221};
222
223
224static int abituguru_wait(struct abituguru_data *data, u8 state)
225{
226 int timeout = ABIT_UGURU_WAIT_TIMEOUT;
227
228 while (inb_p(data->addr + ABIT_UGURU_DATA) != state) {
229 timeout--;
230 if (timeout == 0)
231 return -EBUSY;
232
233
234 if (timeout <= ABIT_UGURU_WAIT_TIMEOUT_SLEEP)
235 msleep(0);
236 }
237 return 0;
238}
239
240
241static int abituguru_ready(struct abituguru_data *data)
242{
243 int timeout = ABIT_UGURU_READY_TIMEOUT;
244
245 if (data->uguru_ready)
246 return 0;
247
248
249 outb(0x00, data->addr + ABIT_UGURU_DATA);
250
251
252 if (abituguru_wait(data, ABIT_UGURU_STATUS_READY)) {
253 ABIT_UGURU_DEBUG(1,
254 "timeout exceeded waiting for ready state\n");
255 return -EIO;
256 }
257
258
259 while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) {
260 timeout--;
261 if (timeout == 0) {
262 ABIT_UGURU_DEBUG(1,
263 "CMD reg does not hold 0xAC after ready command\n");
264 return -EIO;
265 }
266 msleep(0);
267 }
268
269
270
271 timeout = ABIT_UGURU_READY_TIMEOUT;
272 while (inb_p(data->addr + ABIT_UGURU_DATA) != ABIT_UGURU_STATUS_INPUT) {
273 timeout--;
274 if (timeout == 0) {
275 ABIT_UGURU_DEBUG(1,
276 "state != more input after ready command\n");
277 return -EIO;
278 }
279 msleep(0);
280 }
281
282 data->uguru_ready = 1;
283 return 0;
284}
285
286
287
288
289
290static int abituguru_send_address(struct abituguru_data *data,
291 u8 bank_addr, u8 sensor_addr, int retries)
292{
293
294
295 int report_errors = retries;
296
297 for (;;) {
298
299
300 if (abituguru_ready(data) != 0)
301 return -EIO;
302 outb(bank_addr, data->addr + ABIT_UGURU_DATA);
303 data->uguru_ready = 0;
304
305
306
307 if (abituguru_wait(data, ABIT_UGURU_STATUS_INPUT)) {
308 if (retries) {
309 ABIT_UGURU_DEBUG(3, "timeout exceeded "
310 "waiting for more input state, %d "
311 "tries remaining\n", retries);
312 set_current_state(TASK_UNINTERRUPTIBLE);
313 schedule_timeout(ABIT_UGURU_RETRY_DELAY);
314 retries--;
315 continue;
316 }
317 if (report_errors)
318 ABIT_UGURU_DEBUG(1, "timeout exceeded "
319 "waiting for more input state "
320 "(bank: %d)\n", (int)bank_addr);
321 return -EBUSY;
322 }
323 outb(sensor_addr, data->addr + ABIT_UGURU_CMD);
324 return 0;
325 }
326}
327
328
329
330static int abituguru_read(struct abituguru_data *data,
331 u8 bank_addr, u8 sensor_addr, u8 *buf, int count, int retries)
332{
333 int i;
334
335
336 i = abituguru_send_address(data, bank_addr, sensor_addr, retries);
337 if (i)
338 return i;
339
340
341 for (i = 0; i < count; i++) {
342 if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) {
343 ABIT_UGURU_DEBUG(retries ? 1 : 3,
344 "timeout exceeded waiting for "
345 "read state (bank: %d, sensor: %d)\n",
346 (int)bank_addr, (int)sensor_addr);
347 break;
348 }
349 buf[i] = inb(data->addr + ABIT_UGURU_CMD);
350 }
351
352
353 abituguru_ready(data);
354
355 return i;
356}
357
358
359
360static int abituguru_write(struct abituguru_data *data,
361 u8 bank_addr, u8 sensor_addr, u8 *buf, int count)
362{
363
364
365 int i, timeout = ABIT_UGURU_READY_TIMEOUT;
366
367
368 i = abituguru_send_address(data, bank_addr, sensor_addr,
369 ABIT_UGURU_MAX_RETRIES);
370 if (i)
371 return i;
372
373
374 for (i = 0; i < count; i++) {
375 if (abituguru_wait(data, ABIT_UGURU_STATUS_WRITE)) {
376 ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for "
377 "write state (bank: %d, sensor: %d)\n",
378 (int)bank_addr, (int)sensor_addr);
379 break;
380 }
381 outb(buf[i], data->addr + ABIT_UGURU_CMD);
382 }
383
384
385
386
387 if (abituguru_wait(data, ABIT_UGURU_STATUS_READ)) {
388 ABIT_UGURU_DEBUG(1, "timeout exceeded waiting for read state "
389 "after write (bank: %d, sensor: %d)\n", (int)bank_addr,
390 (int)sensor_addr);
391 return -EIO;
392 }
393
394
395 while (inb_p(data->addr + ABIT_UGURU_CMD) != 0xAC) {
396 timeout--;
397 if (timeout == 0) {
398 ABIT_UGURU_DEBUG(1, "CMD reg does not hold 0xAC after "
399 "write (bank: %d, sensor: %d)\n",
400 (int)bank_addr, (int)sensor_addr);
401 return -EIO;
402 }
403 msleep(0);
404 }
405
406
407 abituguru_ready(data);
408
409 return i;
410}
411
412
413
414
415
416
417
418static int __devinit
419abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
420 u8 sensor_addr)
421{
422 u8 val, test_flag, buf[3];
423 int i, ret = -ENODEV;
424
425
426 if (bank1_types[sensor_addr] >= ABIT_UGURU_IN_SENSOR &&
427 bank1_types[sensor_addr] <= ABIT_UGURU_NC) {
428 ABIT_UGURU_DEBUG(2, "assuming sensor type %d for bank1 sensor "
429 "%d because of \"bank1_types\" module param\n",
430 bank1_types[sensor_addr], (int)sensor_addr);
431 return bank1_types[sensor_addr];
432 }
433
434
435 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1, sensor_addr, &val,
436 1, ABIT_UGURU_MAX_RETRIES) != 1)
437 return -ENODEV;
438
439
440 if ((val < 10u) || (val > 250u)) {
441 printk(KERN_WARNING ABIT_UGURU_NAME
442 ": bank1-sensor: %d reading (%d) too close to limits, "
443 "unable to determine sensor type, skipping sensor\n",
444 (int)sensor_addr, (int)val);
445
446
447
448 return ABIT_UGURU_NC;
449 }
450
451 ABIT_UGURU_DEBUG(2, "testing bank1 sensor %d\n", (int)sensor_addr);
452
453
454
455 if (val <= 240u) {
456 buf[0] = ABIT_UGURU_VOLT_LOW_ALARM_ENABLE;
457 buf[1] = 245;
458 buf[2] = 250;
459 test_flag = ABIT_UGURU_VOLT_LOW_ALARM_FLAG;
460 } else {
461 buf[0] = ABIT_UGURU_VOLT_HIGH_ALARM_ENABLE;
462 buf[1] = 5;
463 buf[2] = 10;
464 test_flag = ABIT_UGURU_VOLT_HIGH_ALARM_FLAG;
465 }
466
467 if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
468 buf, 3) != 3)
469 goto abituguru_detect_bank1_sensor_type_exit;
470
471
472 set_current_state(TASK_UNINTERRUPTIBLE);
473 schedule_timeout(HZ/50);
474
475 if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3,
476 ABIT_UGURU_MAX_RETRIES) != 3)
477 goto abituguru_detect_bank1_sensor_type_exit;
478 if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) {
479 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1,
480 sensor_addr, buf, 3,
481 ABIT_UGURU_MAX_RETRIES) != 3)
482 goto abituguru_detect_bank1_sensor_type_exit;
483 if (buf[0] & test_flag) {
484 ABIT_UGURU_DEBUG(2, " found volt sensor\n");
485 ret = ABIT_UGURU_IN_SENSOR;
486 goto abituguru_detect_bank1_sensor_type_exit;
487 } else
488 ABIT_UGURU_DEBUG(2, " alarm raised during volt "
489 "sensor test, but volt range flag not set\n");
490 } else
491 ABIT_UGURU_DEBUG(2, " alarm not raised during volt sensor "
492 "test\n");
493
494
495
496
497 buf[0] = ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE;
498 buf[1] = 5;
499 buf[2] = 10;
500 if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2, sensor_addr,
501 buf, 3) != 3)
502 goto abituguru_detect_bank1_sensor_type_exit;
503
504
505 set_current_state(TASK_UNINTERRUPTIBLE);
506 schedule_timeout(HZ/20);
507
508 if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0, buf, 3,
509 ABIT_UGURU_MAX_RETRIES) != 3)
510 goto abituguru_detect_bank1_sensor_type_exit;
511 if (buf[sensor_addr/8] & (0x01 << (sensor_addr % 8))) {
512 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1 + 1,
513 sensor_addr, buf, 3,
514 ABIT_UGURU_MAX_RETRIES) != 3)
515 goto abituguru_detect_bank1_sensor_type_exit;
516 if (buf[0] & ABIT_UGURU_TEMP_HIGH_ALARM_FLAG) {
517 ABIT_UGURU_DEBUG(2, " found temp sensor\n");
518 ret = ABIT_UGURU_TEMP_SENSOR;
519 goto abituguru_detect_bank1_sensor_type_exit;
520 } else
521 ABIT_UGURU_DEBUG(2, " alarm raised during temp "
522 "sensor test, but temp high flag not set\n");
523 } else
524 ABIT_UGURU_DEBUG(2, " alarm not raised during temp sensor "
525 "test\n");
526
527 ret = ABIT_UGURU_NC;
528abituguru_detect_bank1_sensor_type_exit:
529
530
531
532 for (i = 0; i < 3; i++)
533 if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2,
534 sensor_addr, data->bank1_settings[sensor_addr],
535 3) == 3)
536 break;
537 if (i == 3) {
538 printk(KERN_ERR ABIT_UGURU_NAME
539 ": Fatal error could not restore original settings. "
540 "This should never happen please report this to the "
541 "abituguru maintainer (see MAINTAINERS)\n");
542 return -ENODEV;
543 }
544 return ret;
545}
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564static void __devinit
565abituguru_detect_no_bank2_sensors(struct abituguru_data *data)
566{
567 int i;
568
569 if (fan_sensors > 0 && fan_sensors <= ABIT_UGURU_MAX_BANK2_SENSORS) {
570 data->bank2_sensors = fan_sensors;
571 ABIT_UGURU_DEBUG(2, "assuming %d fan sensors because of "
572 "\"fan_sensors\" module param\n",
573 (int)data->bank2_sensors);
574 return;
575 }
576
577 ABIT_UGURU_DEBUG(2, "detecting number of fan sensors\n");
578 for (i = 0; i < ABIT_UGURU_MAX_BANK2_SENSORS; i++) {
579
580
581
582
583
584
585 if (data->bank2_settings[i][0] & ~0xC9) {
586 ABIT_UGURU_DEBUG(2, " bank2 sensor %d does not seem "
587 "to be a fan sensor: settings[0] = %02X\n",
588 i, (unsigned int)data->bank2_settings[i][0]);
589 break;
590 }
591
592
593 if (data->bank2_settings[i][1] <
594 abituguru_bank2_min_threshold) {
595 ABIT_UGURU_DEBUG(2, " bank2 sensor %d does not seem "
596 "to be a fan sensor: the threshold (%d) is "
597 "below the minimum (%d)\n", i,
598 (int)data->bank2_settings[i][1],
599 (int)abituguru_bank2_min_threshold);
600 break;
601 }
602 if (data->bank2_settings[i][1] >
603 abituguru_bank2_max_threshold) {
604 ABIT_UGURU_DEBUG(2, " bank2 sensor %d does not seem "
605 "to be a fan sensor: the threshold (%d) is "
606 "above the maximum (%d)\n", i,
607 (int)data->bank2_settings[i][1],
608 (int)abituguru_bank2_max_threshold);
609 break;
610 }
611 }
612
613 data->bank2_sensors = i;
614 ABIT_UGURU_DEBUG(2, " found: %d fan sensors\n",
615 (int)data->bank2_sensors);
616}
617
618static void __devinit
619abituguru_detect_no_pwms(struct abituguru_data *data)
620{
621 int i, j;
622
623 if (pwms > 0 && pwms <= ABIT_UGURU_MAX_PWMS) {
624 data->pwms = pwms;
625 ABIT_UGURU_DEBUG(2, "assuming %d PWM outputs because of "
626 "\"pwms\" module param\n", (int)data->pwms);
627 return;
628 }
629
630 ABIT_UGURU_DEBUG(2, "detecting number of PWM outputs\n");
631 for (i = 0; i < ABIT_UGURU_MAX_PWMS; i++) {
632
633
634
635 if (data->pwm_settings[i][0] & ~0x8F) {
636 ABIT_UGURU_DEBUG(2, " pwm channel %d does not seem "
637 "to be a pwm channel: settings[0] = %02X\n",
638 i, (unsigned int)data->pwm_settings[i][0]);
639 break;
640 }
641
642
643
644 for (j = 0; j < data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR];
645 j++) {
646 if (data->bank1_address[ABIT_UGURU_TEMP_SENSOR][j] ==
647 (data->pwm_settings[i][0] & 0x0F))
648 break;
649 }
650 if (j == data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR]) {
651 ABIT_UGURU_DEBUG(2, " pwm channel %d does not seem "
652 "to be a pwm channel: %d is not a valid temp "
653 "sensor address\n", i,
654 data->pwm_settings[i][0] & 0x0F);
655 break;
656 }
657
658
659 for (j = 1; j < 5; j++) {
660 u8 min;
661
662 if ((i == 0) && ((j == 1) || (j == 2)))
663 min = 77;
664 else
665 min = abituguru_pwm_min[j];
666 if (data->pwm_settings[i][j] < min) {
667 ABIT_UGURU_DEBUG(2, " pwm channel %d does "
668 "not seem to be a pwm channel: "
669 "setting %d (%d) is below the minimum "
670 "value (%d)\n", i, j,
671 (int)data->pwm_settings[i][j],
672 (int)min);
673 goto abituguru_detect_no_pwms_exit;
674 }
675 if (data->pwm_settings[i][j] > abituguru_pwm_max[j]) {
676 ABIT_UGURU_DEBUG(2, " pwm channel %d does "
677 "not seem to be a pwm channel: "
678 "setting %d (%d) is above the maximum "
679 "value (%d)\n", i, j,
680 (int)data->pwm_settings[i][j],
681 (int)abituguru_pwm_max[j]);
682 goto abituguru_detect_no_pwms_exit;
683 }
684 }
685
686
687 if (data->pwm_settings[i][1] >= data->pwm_settings[i][2]) {
688 ABIT_UGURU_DEBUG(2, " pwm channel %d does not seem "
689 "to be a pwm channel: min pwm (%d) >= "
690 "max pwm (%d)\n", i,
691 (int)data->pwm_settings[i][1],
692 (int)data->pwm_settings[i][2]);
693 break;
694 }
695 if (data->pwm_settings[i][3] >= data->pwm_settings[i][4]) {
696 ABIT_UGURU_DEBUG(2, " pwm channel %d does not seem "
697 "to be a pwm channel: min temp (%d) >= "
698 "max temp (%d)\n", i,
699 (int)data->pwm_settings[i][3],
700 (int)data->pwm_settings[i][4]);
701 break;
702 }
703 }
704
705abituguru_detect_no_pwms_exit:
706 data->pwms = i;
707 ABIT_UGURU_DEBUG(2, " found: %d PWM outputs\n", (int)data->pwms);
708}
709
710
711
712
713static struct abituguru_data *abituguru_update_device(struct device *dev);
714
715static ssize_t show_bank1_value(struct device *dev,
716 struct device_attribute *devattr, char *buf)
717{
718 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
719 struct abituguru_data *data = abituguru_update_device(dev);
720 if (!data)
721 return -EIO;
722 return sprintf(buf, "%d\n", (data->bank1_value[attr->index] *
723 data->bank1_max_value[attr->index] + 128) / 255);
724}
725
726static ssize_t show_bank1_setting(struct device *dev,
727 struct device_attribute *devattr, char *buf)
728{
729 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
730 struct abituguru_data *data = dev_get_drvdata(dev);
731 return sprintf(buf, "%d\n",
732 (data->bank1_settings[attr->index][attr->nr] *
733 data->bank1_max_value[attr->index] + 128) / 255);
734}
735
736static ssize_t show_bank2_value(struct device *dev,
737 struct device_attribute *devattr, char *buf)
738{
739 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
740 struct abituguru_data *data = abituguru_update_device(dev);
741 if (!data)
742 return -EIO;
743 return sprintf(buf, "%d\n", (data->bank2_value[attr->index] *
744 ABIT_UGURU_FAN_MAX + 128) / 255);
745}
746
747static ssize_t show_bank2_setting(struct device *dev,
748 struct device_attribute *devattr, char *buf)
749{
750 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
751 struct abituguru_data *data = dev_get_drvdata(dev);
752 return sprintf(buf, "%d\n",
753 (data->bank2_settings[attr->index][attr->nr] *
754 ABIT_UGURU_FAN_MAX + 128) / 255);
755}
756
757static ssize_t store_bank1_setting(struct device *dev, struct device_attribute
758 *devattr, const char *buf, size_t count)
759{
760 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
761 struct abituguru_data *data = dev_get_drvdata(dev);
762 u8 val = (simple_strtoul(buf, NULL, 10) * 255 +
763 data->bank1_max_value[attr->index]/2) /
764 data->bank1_max_value[attr->index];
765 ssize_t ret = count;
766
767 mutex_lock(&data->update_lock);
768 if (data->bank1_settings[attr->index][attr->nr] != val) {
769 u8 orig_val = data->bank1_settings[attr->index][attr->nr];
770 data->bank1_settings[attr->index][attr->nr] = val;
771 if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK1 + 2,
772 attr->index, data->bank1_settings[attr->index],
773 3) <= attr->nr) {
774 data->bank1_settings[attr->index][attr->nr] = orig_val;
775 ret = -EIO;
776 }
777 }
778 mutex_unlock(&data->update_lock);
779 return ret;
780}
781
782static ssize_t store_bank2_setting(struct device *dev, struct device_attribute
783 *devattr, const char *buf, size_t count)
784{
785 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
786 struct abituguru_data *data = dev_get_drvdata(dev);
787 u8 val = (simple_strtoul(buf, NULL, 10)*255 + ABIT_UGURU_FAN_MAX/2) /
788 ABIT_UGURU_FAN_MAX;
789 ssize_t ret = count;
790
791
792 if ((val < abituguru_bank2_min_threshold) ||
793 (val > abituguru_bank2_max_threshold))
794 return -EINVAL;
795
796 mutex_lock(&data->update_lock);
797 if (data->bank2_settings[attr->index][attr->nr] != val) {
798 u8 orig_val = data->bank2_settings[attr->index][attr->nr];
799 data->bank2_settings[attr->index][attr->nr] = val;
800 if (abituguru_write(data, ABIT_UGURU_SENSOR_BANK2 + 2,
801 attr->index, data->bank2_settings[attr->index],
802 2) <= attr->nr) {
803 data->bank2_settings[attr->index][attr->nr] = orig_val;
804 ret = -EIO;
805 }
806 }
807 mutex_unlock(&data->update_lock);
808 return ret;
809}
810
811static ssize_t show_bank1_alarm(struct device *dev,
812 struct device_attribute *devattr, char *buf)
813{
814 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
815 struct abituguru_data *data = abituguru_update_device(dev);
816 if (!data)
817 return -EIO;
818
819
820
821
822
823 if ((data->alarms[attr->index / 8] & (0x01 << (attr->index % 8))) &&
824 (data->bank1_settings[attr->index][0] & attr->nr))
825 return sprintf(buf, "1\n");
826 else
827 return sprintf(buf, "0\n");
828}
829
830static ssize_t show_bank2_alarm(struct device *dev,
831 struct device_attribute *devattr, char *buf)
832{
833 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
834 struct abituguru_data *data = abituguru_update_device(dev);
835 if (!data)
836 return -EIO;
837 if (data->alarms[2] & (0x01 << attr->index))
838 return sprintf(buf, "1\n");
839 else
840 return sprintf(buf, "0\n");
841}
842
843static ssize_t show_bank1_mask(struct device *dev,
844 struct device_attribute *devattr, char *buf)
845{
846 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
847 struct abituguru_data *data = dev_get_drvdata(dev);
848 if (data->bank1_settings[attr->index][0] & attr->nr)
849 return sprintf(buf, "1\n");
850 else
851 return sprintf(buf, "0\n");
852}
853
854static ssize_t show_bank2_mask(struct device *dev,
855 struct device_attribute *devattr, char *buf)
856{
857 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
858 struct abituguru_data *data = dev_get_drvdata(dev);
859 if (data->bank2_settings[attr->index][0] & attr->nr)
860 return sprintf(buf, "1\n");
861 else
862 return sprintf(buf, "0\n");
863}
864
865static ssize_t store_bank1_mask(struct device *dev,
866 struct device_attribute *devattr, const char *buf, size_t count)
867{
868 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
869 struct abituguru_data *data = dev_get_drvdata(dev);
870 int mask = simple_strtoul(buf, NULL, 10);
871 ssize_t ret = count;
872 u8 orig_val;
873
874 mutex_lock(&data->update_lock);
875 orig_val = data->bank1_settings[attr->index][0];
876
877 if (mask)
878 data->bank1_settings[attr->index][0] |= attr->nr;
879 else
880 data->bank1_settings[attr->index][0] &= ~attr->nr;
881
882 if ((data->bank1_settings[attr->index][0] != orig_val) &&
883 (abituguru_write(data,
884 ABIT_UGURU_SENSOR_BANK1 + 2, attr->index,
885 data->bank1_settings[attr->index], 3) < 1)) {
886 data->bank1_settings[attr->index][0] = orig_val;
887 ret = -EIO;
888 }
889 mutex_unlock(&data->update_lock);
890 return ret;
891}
892
893static ssize_t store_bank2_mask(struct device *dev,
894 struct device_attribute *devattr, const char *buf, size_t count)
895{
896 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
897 struct abituguru_data *data = dev_get_drvdata(dev);
898 int mask = simple_strtoul(buf, NULL, 10);
899 ssize_t ret = count;
900 u8 orig_val;
901
902 mutex_lock(&data->update_lock);
903 orig_val = data->bank2_settings[attr->index][0];
904
905 if (mask)
906 data->bank2_settings[attr->index][0] |= attr->nr;
907 else
908 data->bank2_settings[attr->index][0] &= ~attr->nr;
909
910 if ((data->bank2_settings[attr->index][0] != orig_val) &&
911 (abituguru_write(data,
912 ABIT_UGURU_SENSOR_BANK2 + 2, attr->index,
913 data->bank2_settings[attr->index], 2) < 1)) {
914 data->bank2_settings[attr->index][0] = orig_val;
915 ret = -EIO;
916 }
917 mutex_unlock(&data->update_lock);
918 return ret;
919}
920
921
922static ssize_t show_pwm_setting(struct device *dev,
923 struct device_attribute *devattr, char *buf)
924{
925 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
926 struct abituguru_data *data = dev_get_drvdata(dev);
927 return sprintf(buf, "%d\n", data->pwm_settings[attr->index][attr->nr] *
928 abituguru_pwm_settings_multiplier[attr->nr]);
929}
930
931static ssize_t store_pwm_setting(struct device *dev, struct device_attribute
932 *devattr, const char *buf, size_t count)
933{
934 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
935 struct abituguru_data *data = dev_get_drvdata(dev);
936 u8 min, val = (simple_strtoul(buf, NULL, 10) +
937 abituguru_pwm_settings_multiplier[attr->nr]/2) /
938 abituguru_pwm_settings_multiplier[attr->nr];
939 ssize_t ret = count;
940
941
942 if ((attr->index == 0) && ((attr->nr == 1) || (attr->nr == 2)))
943 min = 77;
944 else
945 min = abituguru_pwm_min[attr->nr];
946
947
948 if ((val < min) || (val > abituguru_pwm_max[attr->nr]))
949 return -EINVAL;
950
951 mutex_lock(&data->update_lock);
952
953 if ((attr->nr & 1) &&
954 (val >= data->pwm_settings[attr->index][attr->nr + 1]))
955 ret = -EINVAL;
956 else if (!(attr->nr & 1) &&
957 (val <= data->pwm_settings[attr->index][attr->nr - 1]))
958 ret = -EINVAL;
959 else if (data->pwm_settings[attr->index][attr->nr] != val) {
960 u8 orig_val = data->pwm_settings[attr->index][attr->nr];
961 data->pwm_settings[attr->index][attr->nr] = val;
962 if (abituguru_write(data, ABIT_UGURU_FAN_PWM + 1,
963 attr->index, data->pwm_settings[attr->index],
964 5) <= attr->nr) {
965 data->pwm_settings[attr->index][attr->nr] =
966 orig_val;
967 ret = -EIO;
968 }
969 }
970 mutex_unlock(&data->update_lock);
971 return ret;
972}
973
974static ssize_t show_pwm_sensor(struct device *dev,
975 struct device_attribute *devattr, char *buf)
976{
977 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
978 struct abituguru_data *data = dev_get_drvdata(dev);
979 int i;
980
981
982 for (i = 0; i < data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR]; i++)
983 if (data->bank1_address[ABIT_UGURU_TEMP_SENSOR][i] ==
984 (data->pwm_settings[attr->index][0] & 0x0F))
985 return sprintf(buf, "%d\n", i+1);
986
987 return -ENXIO;
988}
989
990static ssize_t store_pwm_sensor(struct device *dev, struct device_attribute
991 *devattr, const char *buf, size_t count)
992{
993 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
994 struct abituguru_data *data = dev_get_drvdata(dev);
995 unsigned long val = simple_strtoul(buf, NULL, 10) - 1;
996 ssize_t ret = count;
997
998 mutex_lock(&data->update_lock);
999 if (val < data->bank1_sensors[ABIT_UGURU_TEMP_SENSOR]) {
1000 u8 orig_val = data->pwm_settings[attr->index][0];
1001 u8 address = data->bank1_address[ABIT_UGURU_TEMP_SENSOR][val];
1002 data->pwm_settings[attr->index][0] &= 0xF0;
1003 data->pwm_settings[attr->index][0] |= address;
1004 if (data->pwm_settings[attr->index][0] != orig_val) {
1005 if (abituguru_write(data, ABIT_UGURU_FAN_PWM + 1,
1006 attr->index,
1007 data->pwm_settings[attr->index],
1008 5) < 1) {
1009 data->pwm_settings[attr->index][0] = orig_val;
1010 ret = -EIO;
1011 }
1012 }
1013 }
1014 else
1015 ret = -EINVAL;
1016 mutex_unlock(&data->update_lock);
1017 return ret;
1018}
1019
1020static ssize_t show_pwm_enable(struct device *dev,
1021 struct device_attribute *devattr, char *buf)
1022{
1023 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
1024 struct abituguru_data *data = dev_get_drvdata(dev);
1025 int res = 0;
1026 if (data->pwm_settings[attr->index][0] & ABIT_UGURU_FAN_PWM_ENABLE)
1027 res = 2;
1028 return sprintf(buf, "%d\n", res);
1029}
1030
1031static ssize_t store_pwm_enable(struct device *dev, struct device_attribute
1032 *devattr, const char *buf, size_t count)
1033{
1034 struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
1035 struct abituguru_data *data = dev_get_drvdata(dev);
1036 u8 orig_val, user_val = simple_strtoul(buf, NULL, 10);
1037 ssize_t ret = count;
1038
1039 mutex_lock(&data->update_lock);
1040 orig_val = data->pwm_settings[attr->index][0];
1041 switch (user_val) {
1042 case 0:
1043 data->pwm_settings[attr->index][0] &=
1044 ~ABIT_UGURU_FAN_PWM_ENABLE;
1045 break;
1046 case 2:
1047 data->pwm_settings[attr->index][0] |=
1048 ABIT_UGURU_FAN_PWM_ENABLE;
1049 break;
1050 default:
1051 ret = -EINVAL;
1052 }
1053 if ((data->pwm_settings[attr->index][0] != orig_val) &&
1054 (abituguru_write(data, ABIT_UGURU_FAN_PWM + 1,
1055 attr->index, data->pwm_settings[attr->index],
1056 5) < 1)) {
1057 data->pwm_settings[attr->index][0] = orig_val;
1058 ret = -EIO;
1059 }
1060 mutex_unlock(&data->update_lock);
1061 return ret;
1062}
1063
1064static ssize_t show_name(struct device *dev,
1065 struct device_attribute *devattr, char *buf)
1066{
1067 return sprintf(buf, "%s\n", ABIT_UGURU_NAME);
1068}
1069
1070
1071static const
1072struct sensor_device_attribute_2 abituguru_sysfs_bank1_templ[2][9] = {
1073 {
1074 SENSOR_ATTR_2(in%d_input, 0444, show_bank1_value, NULL, 0, 0),
1075 SENSOR_ATTR_2(in%d_min, 0644, show_bank1_setting,
1076 store_bank1_setting, 1, 0),
1077 SENSOR_ATTR_2(in%d_min_alarm, 0444, show_bank1_alarm, NULL,
1078 ABIT_UGURU_VOLT_LOW_ALARM_FLAG, 0),
1079 SENSOR_ATTR_2(in%d_max, 0644, show_bank1_setting,
1080 store_bank1_setting, 2, 0),
1081 SENSOR_ATTR_2(in%d_max_alarm, 0444, show_bank1_alarm, NULL,
1082 ABIT_UGURU_VOLT_HIGH_ALARM_FLAG, 0),
1083 SENSOR_ATTR_2(in%d_beep, 0644, show_bank1_mask,
1084 store_bank1_mask, ABIT_UGURU_BEEP_ENABLE, 0),
1085 SENSOR_ATTR_2(in%d_shutdown, 0644, show_bank1_mask,
1086 store_bank1_mask, ABIT_UGURU_SHUTDOWN_ENABLE, 0),
1087 SENSOR_ATTR_2(in%d_min_alarm_enable, 0644, show_bank1_mask,
1088 store_bank1_mask, ABIT_UGURU_VOLT_LOW_ALARM_ENABLE, 0),
1089 SENSOR_ATTR_2(in%d_max_alarm_enable, 0644, show_bank1_mask,
1090 store_bank1_mask, ABIT_UGURU_VOLT_HIGH_ALARM_ENABLE, 0),
1091 }, {
1092 SENSOR_ATTR_2(temp%d_input, 0444, show_bank1_value, NULL, 0, 0),
1093 SENSOR_ATTR_2(temp%d_alarm, 0444, show_bank1_alarm, NULL,
1094 ABIT_UGURU_TEMP_HIGH_ALARM_FLAG, 0),
1095 SENSOR_ATTR_2(temp%d_max, 0644, show_bank1_setting,
1096 store_bank1_setting, 1, 0),
1097 SENSOR_ATTR_2(temp%d_crit, 0644, show_bank1_setting,
1098 store_bank1_setting, 2, 0),
1099 SENSOR_ATTR_2(temp%d_beep, 0644, show_bank1_mask,
1100 store_bank1_mask, ABIT_UGURU_BEEP_ENABLE, 0),
1101 SENSOR_ATTR_2(temp%d_shutdown, 0644, show_bank1_mask,
1102 store_bank1_mask, ABIT_UGURU_SHUTDOWN_ENABLE, 0),
1103 SENSOR_ATTR_2(temp%d_alarm_enable, 0644, show_bank1_mask,
1104 store_bank1_mask, ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE, 0),
1105 }
1106};
1107
1108static const struct sensor_device_attribute_2 abituguru_sysfs_fan_templ[6] = {
1109 SENSOR_ATTR_2(fan%d_input, 0444, show_bank2_value, NULL, 0, 0),
1110 SENSOR_ATTR_2(fan%d_alarm, 0444, show_bank2_alarm, NULL, 0, 0),
1111 SENSOR_ATTR_2(fan%d_min, 0644, show_bank2_setting,
1112 store_bank2_setting, 1, 0),
1113 SENSOR_ATTR_2(fan%d_beep, 0644, show_bank2_mask,
1114 store_bank2_mask, ABIT_UGURU_BEEP_ENABLE, 0),
1115 SENSOR_ATTR_2(fan%d_shutdown, 0644, show_bank2_mask,
1116 store_bank2_mask, ABIT_UGURU_SHUTDOWN_ENABLE, 0),
1117 SENSOR_ATTR_2(fan%d_alarm_enable, 0644, show_bank2_mask,
1118 store_bank2_mask, ABIT_UGURU_FAN_LOW_ALARM_ENABLE, 0),
1119};
1120
1121static const struct sensor_device_attribute_2 abituguru_sysfs_pwm_templ[6] = {
1122 SENSOR_ATTR_2(pwm%d_enable, 0644, show_pwm_enable,
1123 store_pwm_enable, 0, 0),
1124 SENSOR_ATTR_2(pwm%d_auto_channels_temp, 0644, show_pwm_sensor,
1125 store_pwm_sensor, 0, 0),
1126 SENSOR_ATTR_2(pwm%d_auto_point1_pwm, 0644, show_pwm_setting,
1127 store_pwm_setting, 1, 0),
1128 SENSOR_ATTR_2(pwm%d_auto_point2_pwm, 0644, show_pwm_setting,
1129 store_pwm_setting, 2, 0),
1130 SENSOR_ATTR_2(pwm%d_auto_point1_temp, 0644, show_pwm_setting,
1131 store_pwm_setting, 3, 0),
1132 SENSOR_ATTR_2(pwm%d_auto_point2_temp, 0644, show_pwm_setting,
1133 store_pwm_setting, 4, 0),
1134};
1135
1136static struct sensor_device_attribute_2 abituguru_sysfs_attr[] = {
1137 SENSOR_ATTR_2(name, 0444, show_name, NULL, 0, 0),
1138};
1139
1140static int __devinit abituguru_probe(struct platform_device *pdev)
1141{
1142 struct abituguru_data *data;
1143 int i, j, used, sysfs_names_free, sysfs_attr_i, res = -ENODEV;
1144 char *sysfs_filename;
1145
1146
1147
1148 const u8 probe_order[ABIT_UGURU_MAX_BANK1_SENSORS] = {
1149 0x00, 0x01, 0x03, 0x04, 0x0A, 0x08, 0x0E, 0x02,
1150 0x09, 0x06, 0x05, 0x0B, 0x0F, 0x0D, 0x07, 0x0C };
1151
1152 if (!(data = kzalloc(sizeof(struct abituguru_data), GFP_KERNEL)))
1153 return -ENOMEM;
1154
1155 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
1156 mutex_init(&data->update_lock);
1157 platform_set_drvdata(pdev, data);
1158
1159
1160 if (inb_p(data->addr + ABIT_UGURU_DATA) == ABIT_UGURU_STATUS_INPUT)
1161 data->uguru_ready = 1;
1162
1163
1164
1165
1166 if (abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0,
1167 data->alarms, 3, ABIT_UGURU_MAX_RETRIES) != 3)
1168 goto abituguru_probe_error;
1169
1170 for (i = 0; i < ABIT_UGURU_MAX_BANK1_SENSORS; i++) {
1171 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1, i,
1172 &data->bank1_value[i], 1,
1173 ABIT_UGURU_MAX_RETRIES) != 1)
1174 goto abituguru_probe_error;
1175 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK1+1, i,
1176 data->bank1_settings[i], 3,
1177 ABIT_UGURU_MAX_RETRIES) != 3)
1178 goto abituguru_probe_error;
1179 }
1180
1181
1182
1183
1184
1185 for (i = 0; i < ABIT_UGURU_MAX_BANK2_SENSORS; i++) {
1186 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK2, i,
1187 &data->bank2_value[i], 1,
1188 ABIT_UGURU_MAX_RETRIES) != 1)
1189 goto abituguru_probe_error;
1190 if (abituguru_read(data, ABIT_UGURU_SENSOR_BANK2+1, i,
1191 data->bank2_settings[i], 2,
1192 ABIT_UGURU_MAX_RETRIES) != 2)
1193 goto abituguru_probe_error;
1194 }
1195 for (i = 0; i < ABIT_UGURU_MAX_PWMS; i++) {
1196 if (abituguru_read(data, ABIT_UGURU_FAN_PWM, i,
1197 data->pwm_settings[i], 5,
1198 ABIT_UGURU_MAX_RETRIES) != 5)
1199 goto abituguru_probe_error;
1200 }
1201 data->last_updated = jiffies;
1202
1203
1204 sysfs_attr_i = 0;
1205 sysfs_filename = data->sysfs_names;
1206 sysfs_names_free = ABITUGURU_SYSFS_NAMES_LENGTH;
1207 for (i = 0; i < ABIT_UGURU_MAX_BANK1_SENSORS; i++) {
1208 res = abituguru_detect_bank1_sensor_type(data, probe_order[i]);
1209 if (res < 0)
1210 goto abituguru_probe_error;
1211 if (res == ABIT_UGURU_NC)
1212 continue;
1213
1214
1215 for (j = 0; j < (res ? 7 : 9); j++) {
1216 used = snprintf(sysfs_filename, sysfs_names_free,
1217 abituguru_sysfs_bank1_templ[res][j].dev_attr.
1218 attr.name, data->bank1_sensors[res] + res)
1219 + 1;
1220 data->sysfs_attr[sysfs_attr_i] =
1221 abituguru_sysfs_bank1_templ[res][j];
1222 data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
1223 sysfs_filename;
1224 data->sysfs_attr[sysfs_attr_i].index = probe_order[i];
1225 sysfs_filename += used;
1226 sysfs_names_free -= used;
1227 sysfs_attr_i++;
1228 }
1229 data->bank1_max_value[probe_order[i]] =
1230 abituguru_bank1_max_value[res];
1231 data->bank1_address[res][data->bank1_sensors[res]] =
1232 probe_order[i];
1233 data->bank1_sensors[res]++;
1234 }
1235
1236 abituguru_detect_no_bank2_sensors(data);
1237 for (i = 0; i < data->bank2_sensors; i++) {
1238 for (j = 0; j < ARRAY_SIZE(abituguru_sysfs_fan_templ); j++) {
1239 used = snprintf(sysfs_filename, sysfs_names_free,
1240 abituguru_sysfs_fan_templ[j].dev_attr.attr.name,
1241 i + 1) + 1;
1242 data->sysfs_attr[sysfs_attr_i] =
1243 abituguru_sysfs_fan_templ[j];
1244 data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
1245 sysfs_filename;
1246 data->sysfs_attr[sysfs_attr_i].index = i;
1247 sysfs_filename += used;
1248 sysfs_names_free -= used;
1249 sysfs_attr_i++;
1250 }
1251 }
1252
1253 abituguru_detect_no_pwms(data);
1254 for (i = 0; i < data->pwms; i++) {
1255 for (j = 0; j < ARRAY_SIZE(abituguru_sysfs_pwm_templ); j++) {
1256 used = snprintf(sysfs_filename, sysfs_names_free,
1257 abituguru_sysfs_pwm_templ[j].dev_attr.attr.name,
1258 i + 1) + 1;
1259 data->sysfs_attr[sysfs_attr_i] =
1260 abituguru_sysfs_pwm_templ[j];
1261 data->sysfs_attr[sysfs_attr_i].dev_attr.attr.name =
1262 sysfs_filename;
1263 data->sysfs_attr[sysfs_attr_i].index = i;
1264 sysfs_filename += used;
1265 sysfs_names_free -= used;
1266 sysfs_attr_i++;
1267 }
1268 }
1269
1270 if (sysfs_names_free < 0) {
1271 printk(KERN_ERR ABIT_UGURU_NAME ": Fatal error ran out of "
1272 "space for sysfs attr names. This should never "
1273 "happen please report to the abituguru maintainer "
1274 "(see MAINTAINERS)\n");
1275 res = -ENAMETOOLONG;
1276 goto abituguru_probe_error;
1277 }
1278 printk(KERN_INFO ABIT_UGURU_NAME ": found Abit uGuru\n");
1279
1280
1281 for (i = 0; i < sysfs_attr_i; i++)
1282 if (device_create_file(&pdev->dev,
1283 &data->sysfs_attr[i].dev_attr))
1284 goto abituguru_probe_error;
1285 for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
1286 if (device_create_file(&pdev->dev,
1287 &abituguru_sysfs_attr[i].dev_attr))
1288 goto abituguru_probe_error;
1289
1290 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1291 if (!IS_ERR(data->hwmon_dev))
1292 return 0;
1293
1294 res = PTR_ERR(data->hwmon_dev);
1295abituguru_probe_error:
1296 for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1297 device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1298 for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
1299 device_remove_file(&pdev->dev,
1300 &abituguru_sysfs_attr[i].dev_attr);
1301 platform_set_drvdata(pdev, NULL);
1302 kfree(data);
1303 return res;
1304}
1305
1306static int __devexit abituguru_remove(struct platform_device *pdev)
1307{
1308 int i;
1309 struct abituguru_data *data = platform_get_drvdata(pdev);
1310
1311 hwmon_device_unregister(data->hwmon_dev);
1312 for (i = 0; data->sysfs_attr[i].dev_attr.attr.name; i++)
1313 device_remove_file(&pdev->dev, &data->sysfs_attr[i].dev_attr);
1314 for (i = 0; i < ARRAY_SIZE(abituguru_sysfs_attr); i++)
1315 device_remove_file(&pdev->dev,
1316 &abituguru_sysfs_attr[i].dev_attr);
1317 platform_set_drvdata(pdev, NULL);
1318 kfree(data);
1319
1320 return 0;
1321}
1322
1323static struct abituguru_data *abituguru_update_device(struct device *dev)
1324{
1325 int i, err;
1326 struct abituguru_data *data = dev_get_drvdata(dev);
1327
1328 char success = 1;
1329
1330 mutex_lock(&data->update_lock);
1331 if (time_after(jiffies, data->last_updated + HZ)) {
1332 success = 0;
1333 if ((err = abituguru_read(data, ABIT_UGURU_ALARM_BANK, 0,
1334 data->alarms, 3, 0)) != 3)
1335 goto LEAVE_UPDATE;
1336 for (i = 0; i < ABIT_UGURU_MAX_BANK1_SENSORS; i++) {
1337 if ((err = abituguru_read(data,
1338 ABIT_UGURU_SENSOR_BANK1, i,
1339 &data->bank1_value[i], 1, 0)) != 1)
1340 goto LEAVE_UPDATE;
1341 if ((err = abituguru_read(data,
1342 ABIT_UGURU_SENSOR_BANK1 + 1, i,
1343 data->bank1_settings[i], 3, 0)) != 3)
1344 goto LEAVE_UPDATE;
1345 }
1346 for (i = 0; i < data->bank2_sensors; i++)
1347 if ((err = abituguru_read(data,
1348 ABIT_UGURU_SENSOR_BANK2, i,
1349 &data->bank2_value[i], 1, 0)) != 1)
1350 goto LEAVE_UPDATE;
1351
1352 success = 1;
1353 data->update_timeouts = 0;
1354LEAVE_UPDATE:
1355
1356 if (!success && (err == -EBUSY || err >= 0)) {
1357
1358 if (data->update_timeouts < 255u)
1359 data->update_timeouts++;
1360 if (data->update_timeouts <= ABIT_UGURU_MAX_TIMEOUTS) {
1361 ABIT_UGURU_DEBUG(3, "timeout exceeded, will "
1362 "try again next update\n");
1363
1364 success = 1;
1365 } else
1366 ABIT_UGURU_DEBUG(1, "timeout exceeded %d "
1367 "times waiting for more input state\n",
1368 (int)data->update_timeouts);
1369 }
1370
1371 if (success)
1372 data->last_updated = jiffies;
1373 }
1374 mutex_unlock(&data->update_lock);
1375
1376 if (success)
1377 return data;
1378 else
1379 return NULL;
1380}
1381
1382#ifdef CONFIG_PM
1383static int abituguru_suspend(struct platform_device *pdev, pm_message_t state)
1384{
1385 struct abituguru_data *data = platform_get_drvdata(pdev);
1386
1387
1388 mutex_lock(&data->update_lock);
1389 return 0;
1390}
1391
1392static int abituguru_resume(struct platform_device *pdev)
1393{
1394 struct abituguru_data *data = platform_get_drvdata(pdev);
1395
1396 if (inb_p(data->addr + ABIT_UGURU_DATA) != ABIT_UGURU_STATUS_INPUT)
1397 data->uguru_ready = 0;
1398 mutex_unlock(&data->update_lock);
1399 return 0;
1400}
1401#else
1402#define abituguru_suspend NULL
1403#define abituguru_resume NULL
1404#endif
1405
1406static struct platform_driver abituguru_driver = {
1407 .driver = {
1408 .owner = THIS_MODULE,
1409 .name = ABIT_UGURU_NAME,
1410 },
1411 .probe = abituguru_probe,
1412 .remove = __devexit_p(abituguru_remove),
1413 .suspend = abituguru_suspend,
1414 .resume = abituguru_resume,
1415};
1416
1417static int __init abituguru_detect(void)
1418{
1419
1420
1421
1422
1423
1424
1425 u8 cmd_val = inb_p(ABIT_UGURU_BASE + ABIT_UGURU_CMD);
1426 u8 data_val = inb_p(ABIT_UGURU_BASE + ABIT_UGURU_DATA);
1427 if (((data_val == 0x00) || (data_val == 0x08)) &&
1428 ((cmd_val == 0x00) || (cmd_val == 0xAC)))
1429 return ABIT_UGURU_BASE;
1430
1431 ABIT_UGURU_DEBUG(2, "no Abit uGuru found, data = 0x%02X, cmd = "
1432 "0x%02X\n", (unsigned int)data_val, (unsigned int)cmd_val);
1433
1434 if (force) {
1435 printk(KERN_INFO ABIT_UGURU_NAME ": Assuming Abit uGuru is "
1436 "present because of \"force\" parameter\n");
1437 return ABIT_UGURU_BASE;
1438 }
1439
1440
1441 return -ENODEV;
1442}
1443
1444static struct platform_device *abituguru_pdev;
1445
1446static int __init abituguru_init(void)
1447{
1448 int address, err;
1449 struct resource res = { .flags = IORESOURCE_IO };
1450
1451#ifdef CONFIG_DMI
1452 const char *board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
1453
1454
1455 if (!force && (!board_vendor ||
1456 strcmp(board_vendor, "http://www.abit.com.tw/")))
1457 return -ENODEV;
1458#endif
1459
1460 address = abituguru_detect();
1461 if (address < 0)
1462 return address;
1463
1464 err = platform_driver_register(&abituguru_driver);
1465 if (err)
1466 goto exit;
1467
1468 abituguru_pdev = platform_device_alloc(ABIT_UGURU_NAME, address);
1469 if (!abituguru_pdev) {
1470 printk(KERN_ERR ABIT_UGURU_NAME
1471 ": Device allocation failed\n");
1472 err = -ENOMEM;
1473 goto exit_driver_unregister;
1474 }
1475
1476 res.start = address;
1477 res.end = address + ABIT_UGURU_REGION_LENGTH - 1;
1478 res.name = ABIT_UGURU_NAME;
1479
1480 err = platform_device_add_resources(abituguru_pdev, &res, 1);
1481 if (err) {
1482 printk(KERN_ERR ABIT_UGURU_NAME
1483 ": Device resource addition failed (%d)\n", err);
1484 goto exit_device_put;
1485 }
1486
1487 err = platform_device_add(abituguru_pdev);
1488 if (err) {
1489 printk(KERN_ERR ABIT_UGURU_NAME
1490 ": Device addition failed (%d)\n", err);
1491 goto exit_device_put;
1492 }
1493
1494 return 0;
1495
1496exit_device_put:
1497 platform_device_put(abituguru_pdev);
1498exit_driver_unregister:
1499 platform_driver_unregister(&abituguru_driver);
1500exit:
1501 return err;
1502}
1503
1504static void __exit abituguru_exit(void)
1505{
1506 platform_device_unregister(abituguru_pdev);
1507 platform_driver_unregister(&abituguru_driver);
1508}
1509
1510MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
1511MODULE_DESCRIPTION("Abit uGuru Sensor device");
1512MODULE_LICENSE("GPL");
1513
1514module_init(abituguru_init);
1515module_exit(abituguru_exit);