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25#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26
27#include <linux/module.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/jiffies.h>
31#include <linux/platform_device.h>
32#include <linux/hwmon.h>
33#include <linux/hwmon-sysfs.h>
34#include <linux/err.h>
35#include <linux/mutex.h>
36#include <linux/sysfs.h>
37#include <linux/ioport.h>
38#include <linux/acpi.h>
39#include <linux/io.h>
40
41static unsigned short force_id;
42module_param(force_id, ushort, 0);
43MODULE_PARM_DESC(force_id, "Override the detected device ID");
44
45static struct platform_device *pdev;
46
47#define DRVNAME "pc87427"
48
49
50
51
52struct pc87427_data {
53 struct device *hwmon_dev;
54 struct mutex lock;
55 int address[2];
56 const char *name;
57
58 unsigned long last_updated;
59 u8 fan_enabled;
60 u16 fan[8];
61 u16 fan_min[8];
62 u8 fan_status[8];
63
64 u8 pwm_enabled;
65 u8 pwm_auto_ok;
66 u8 pwm_enable[4];
67 u8 pwm[4];
68
69 u8 temp_enabled;
70 s16 temp[6];
71 s8 temp_min[6];
72 s8 temp_max[6];
73 s8 temp_crit[6];
74 u8 temp_status[6];
75 u8 temp_type[6];
76};
77
78struct pc87427_sio_data {
79 unsigned short address[2];
80 u8 has_fanin;
81 u8 has_fanout;
82};
83
84
85
86
87
88#define SIOREG_LDSEL 0x07
89#define SIOREG_DEVID 0x20
90#define SIOREG_CF2 0x22
91#define SIOREG_CF3 0x23
92#define SIOREG_CF4 0x24
93#define SIOREG_CF5 0x25
94#define SIOREG_CFB 0x2B
95#define SIOREG_CFC 0x2C
96#define SIOREG_CFD 0x2D
97#define SIOREG_ACT 0x30
98#define SIOREG_MAP 0x50
99#define SIOREG_IOBASE 0x60
100
101static const u8 logdev[2] = { 0x09, 0x14 };
102static const char *logdev_str[2] = { DRVNAME " FMC", DRVNAME " HMC" };
103#define LD_FAN 0
104#define LD_IN 1
105#define LD_TEMP 1
106
107static inline void superio_outb(int sioaddr, int reg, int val)
108{
109 outb(reg, sioaddr);
110 outb(val, sioaddr + 1);
111}
112
113static inline int superio_inb(int sioaddr, int reg)
114{
115 outb(reg, sioaddr);
116 return inb(sioaddr + 1);
117}
118
119static inline void superio_exit(int sioaddr)
120{
121 outb(0x02, sioaddr);
122 outb(0x02, sioaddr + 1);
123}
124
125
126
127
128
129#define REGION_LENGTH 32
130#define PC87427_REG_BANK 0x0f
131#define BANK_FM(nr) (nr)
132#define BANK_FT(nr) (0x08 + (nr))
133#define BANK_FC(nr) (0x10 + (nr) * 2)
134#define BANK_TM(nr) (nr)
135#define BANK_VM(nr) (0x08 + (nr))
136
137
138
139
140
141
142static inline int pc87427_read8(struct pc87427_data *data, u8 ldi, u8 reg)
143{
144 return inb(data->address[ldi] + reg);
145}
146
147
148static inline int pc87427_read8_bank(struct pc87427_data *data, u8 ldi,
149 u8 bank, u8 reg)
150{
151 outb(bank, data->address[ldi] + PC87427_REG_BANK);
152 return inb(data->address[ldi] + reg);
153}
154
155
156static inline void pc87427_write8_bank(struct pc87427_data *data, u8 ldi,
157 u8 bank, u8 reg, u8 value)
158{
159 outb(bank, data->address[ldi] + PC87427_REG_BANK);
160 outb(value, data->address[ldi] + reg);
161}
162
163
164
165
166
167
168#define PC87427_REG_FAN 0x12
169#define PC87427_REG_FAN_MIN 0x14
170#define PC87427_REG_FAN_STATUS 0x10
171
172#define FAN_STATUS_STALL (1 << 3)
173#define FAN_STATUS_LOSPD (1 << 1)
174#define FAN_STATUS_MONEN (1 << 0)
175
176
177
178
179
180static void pc87427_readall_fan(struct pc87427_data *data, u8 nr)
181{
182 int iobase = data->address[LD_FAN];
183
184 outb(BANK_FM(nr), iobase + PC87427_REG_BANK);
185 data->fan[nr] = inw(iobase + PC87427_REG_FAN);
186 data->fan_min[nr] = inw(iobase + PC87427_REG_FAN_MIN);
187 data->fan_status[nr] = inb(iobase + PC87427_REG_FAN_STATUS);
188
189 outb(data->fan_status[nr], iobase + PC87427_REG_FAN_STATUS);
190}
191
192
193
194static inline unsigned long fan_from_reg(u16 reg)
195{
196 reg &= 0xfffc;
197 if (reg == 0x0000 || reg == 0xfffc)
198 return 0;
199 return 5400000UL / reg;
200}
201
202
203static inline u16 fan_to_reg(unsigned long val)
204{
205 if (val < 83UL)
206 return 0xffff;
207 if (val >= 1350000UL)
208 return 0x0004;
209 return ((1350000UL + val / 2) / val) << 2;
210}
211
212
213
214
215
216#define PC87427_REG_PWM_ENABLE 0x10
217#define PC87427_REG_PWM_DUTY 0x12
218
219#define PWM_ENABLE_MODE_MASK (7 << 4)
220#define PWM_ENABLE_CTLEN (1 << 0)
221
222#define PWM_MODE_MANUAL (0 << 4)
223#define PWM_MODE_AUTO (1 << 4)
224#define PWM_MODE_OFF (2 << 4)
225#define PWM_MODE_ON (7 << 4)
226
227
228
229
230
231static void pc87427_readall_pwm(struct pc87427_data *data, u8 nr)
232{
233 int iobase = data->address[LD_FAN];
234
235 outb(BANK_FC(nr), iobase + PC87427_REG_BANK);
236 data->pwm_enable[nr] = inb(iobase + PC87427_REG_PWM_ENABLE);
237 data->pwm[nr] = inb(iobase + PC87427_REG_PWM_DUTY);
238}
239
240static inline int pwm_enable_from_reg(u8 reg)
241{
242 switch (reg & PWM_ENABLE_MODE_MASK) {
243 case PWM_MODE_ON:
244 return 0;
245 case PWM_MODE_MANUAL:
246 case PWM_MODE_OFF:
247 return 1;
248 case PWM_MODE_AUTO:
249 return 2;
250 default:
251 return -EPROTO;
252 }
253}
254
255static inline u8 pwm_enable_to_reg(unsigned long val, u8 pwmval)
256{
257 switch (val) {
258 default:
259 return PWM_MODE_ON;
260 case 1:
261 return pwmval ? PWM_MODE_MANUAL : PWM_MODE_OFF;
262 case 2:
263 return PWM_MODE_AUTO;
264 }
265}
266
267
268
269
270
271#define PC87427_REG_TEMP_STATUS 0x10
272#define PC87427_REG_TEMP 0x14
273#define PC87427_REG_TEMP_MAX 0x18
274#define PC87427_REG_TEMP_MIN 0x19
275#define PC87427_REG_TEMP_CRIT 0x1a
276#define PC87427_REG_TEMP_TYPE 0x1d
277
278#define TEMP_STATUS_CHANEN (1 << 0)
279#define TEMP_STATUS_LOWFLG (1 << 1)
280#define TEMP_STATUS_HIGHFLG (1 << 2)
281#define TEMP_STATUS_CRITFLG (1 << 3)
282#define TEMP_STATUS_SENSERR (1 << 5)
283#define TEMP_TYPE_MASK (3 << 5)
284
285#define TEMP_TYPE_THERMISTOR (1 << 5)
286#define TEMP_TYPE_REMOTE_DIODE (2 << 5)
287#define TEMP_TYPE_LOCAL_DIODE (3 << 5)
288
289
290
291
292
293static void pc87427_readall_temp(struct pc87427_data *data, u8 nr)
294{
295 int iobase = data->address[LD_TEMP];
296
297 outb(BANK_TM(nr), iobase + PC87427_REG_BANK);
298 data->temp[nr] = le16_to_cpu(inw(iobase + PC87427_REG_TEMP));
299 data->temp_max[nr] = inb(iobase + PC87427_REG_TEMP_MAX);
300 data->temp_min[nr] = inb(iobase + PC87427_REG_TEMP_MIN);
301 data->temp_crit[nr] = inb(iobase + PC87427_REG_TEMP_CRIT);
302 data->temp_type[nr] = inb(iobase + PC87427_REG_TEMP_TYPE);
303 data->temp_status[nr] = inb(iobase + PC87427_REG_TEMP_STATUS);
304
305 outb(data->temp_status[nr], iobase + PC87427_REG_TEMP_STATUS);
306}
307
308static inline unsigned int temp_type_from_reg(u8 reg)
309{
310 switch (reg & TEMP_TYPE_MASK) {
311 case TEMP_TYPE_THERMISTOR:
312 return 4;
313 case TEMP_TYPE_REMOTE_DIODE:
314 case TEMP_TYPE_LOCAL_DIODE:
315 return 3;
316 default:
317 return 0;
318 }
319}
320
321
322
323static inline long temp_from_reg(s16 reg)
324{
325 return reg * 1000 / 256;
326}
327
328static inline long temp_from_reg8(s8 reg)
329{
330 return reg * 1000;
331}
332
333
334
335
336
337static struct pc87427_data *pc87427_update_device(struct device *dev)
338{
339 struct pc87427_data *data = dev_get_drvdata(dev);
340 int i;
341
342 mutex_lock(&data->lock);
343 if (!time_after(jiffies, data->last_updated + HZ)
344 && data->last_updated)
345 goto done;
346
347
348 for (i = 0; i < 8; i++) {
349 if (!(data->fan_enabled & (1 << i)))
350 continue;
351 pc87427_readall_fan(data, i);
352 }
353
354
355 for (i = 0; i < 4; i++) {
356 if (!(data->pwm_enabled & (1 << i)))
357 continue;
358 pc87427_readall_pwm(data, i);
359 }
360
361
362 for (i = 0; i < 6; i++) {
363 if (!(data->temp_enabled & (1 << i)))
364 continue;
365 pc87427_readall_temp(data, i);
366 }
367
368 data->last_updated = jiffies;
369
370done:
371 mutex_unlock(&data->lock);
372 return data;
373}
374
375static ssize_t show_fan_input(struct device *dev, struct device_attribute
376 *devattr, char *buf)
377{
378 struct pc87427_data *data = pc87427_update_device(dev);
379 int nr = to_sensor_dev_attr(devattr)->index;
380
381 return sprintf(buf, "%lu\n", fan_from_reg(data->fan[nr]));
382}
383
384static ssize_t show_fan_min(struct device *dev, struct device_attribute
385 *devattr, char *buf)
386{
387 struct pc87427_data *data = pc87427_update_device(dev);
388 int nr = to_sensor_dev_attr(devattr)->index;
389
390 return sprintf(buf, "%lu\n", fan_from_reg(data->fan_min[nr]));
391}
392
393static ssize_t show_fan_alarm(struct device *dev, struct device_attribute
394 *devattr, char *buf)
395{
396 struct pc87427_data *data = pc87427_update_device(dev);
397 int nr = to_sensor_dev_attr(devattr)->index;
398
399 return sprintf(buf, "%d\n", !!(data->fan_status[nr]
400 & FAN_STATUS_LOSPD));
401}
402
403static ssize_t show_fan_fault(struct device *dev, struct device_attribute
404 *devattr, char *buf)
405{
406 struct pc87427_data *data = pc87427_update_device(dev);
407 int nr = to_sensor_dev_attr(devattr)->index;
408
409 return sprintf(buf, "%d\n", !!(data->fan_status[nr]
410 & FAN_STATUS_STALL));
411}
412
413static ssize_t set_fan_min(struct device *dev, struct device_attribute
414 *devattr, const char *buf, size_t count)
415{
416 struct pc87427_data *data = dev_get_drvdata(dev);
417 int nr = to_sensor_dev_attr(devattr)->index;
418 unsigned long val;
419 int iobase = data->address[LD_FAN];
420
421 if (strict_strtoul(buf, 10, &val) < 0)
422 return -EINVAL;
423
424 mutex_lock(&data->lock);
425 outb(BANK_FM(nr), iobase + PC87427_REG_BANK);
426
427
428
429 outb(0, iobase + PC87427_REG_FAN_STATUS);
430 data->fan_min[nr] = fan_to_reg(val);
431 outw(data->fan_min[nr], iobase + PC87427_REG_FAN_MIN);
432 outb(FAN_STATUS_MONEN, iobase + PC87427_REG_FAN_STATUS);
433 mutex_unlock(&data->lock);
434
435 return count;
436}
437
438static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
439static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
440static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
441static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
442static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan_input, NULL, 4);
443static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan_input, NULL, 5);
444static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan_input, NULL, 6);
445static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, show_fan_input, NULL, 7);
446
447static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
448 show_fan_min, set_fan_min, 0);
449static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
450 show_fan_min, set_fan_min, 1);
451static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
452 show_fan_min, set_fan_min, 2);
453static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
454 show_fan_min, set_fan_min, 3);
455static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
456 show_fan_min, set_fan_min, 4);
457static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
458 show_fan_min, set_fan_min, 5);
459static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
460 show_fan_min, set_fan_min, 6);
461static SENSOR_DEVICE_ATTR(fan8_min, S_IWUSR | S_IRUGO,
462 show_fan_min, set_fan_min, 7);
463
464static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL, 0);
465static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_fan_alarm, NULL, 1);
466static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_fan_alarm, NULL, 2);
467static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 3);
468static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_fan_alarm, NULL, 4);
469static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_fan_alarm, NULL, 5);
470static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_fan_alarm, NULL, 6);
471static SENSOR_DEVICE_ATTR(fan8_alarm, S_IRUGO, show_fan_alarm, NULL, 7);
472
473static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, show_fan_fault, NULL, 0);
474static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, show_fan_fault, NULL, 1);
475static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, show_fan_fault, NULL, 2);
476static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, show_fan_fault, NULL, 3);
477static SENSOR_DEVICE_ATTR(fan5_fault, S_IRUGO, show_fan_fault, NULL, 4);
478static SENSOR_DEVICE_ATTR(fan6_fault, S_IRUGO, show_fan_fault, NULL, 5);
479static SENSOR_DEVICE_ATTR(fan7_fault, S_IRUGO, show_fan_fault, NULL, 6);
480static SENSOR_DEVICE_ATTR(fan8_fault, S_IRUGO, show_fan_fault, NULL, 7);
481
482static struct attribute *pc87427_attributes_fan[8][5] = {
483 {
484 &sensor_dev_attr_fan1_input.dev_attr.attr,
485 &sensor_dev_attr_fan1_min.dev_attr.attr,
486 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
487 &sensor_dev_attr_fan1_fault.dev_attr.attr,
488 NULL
489 }, {
490 &sensor_dev_attr_fan2_input.dev_attr.attr,
491 &sensor_dev_attr_fan2_min.dev_attr.attr,
492 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
493 &sensor_dev_attr_fan2_fault.dev_attr.attr,
494 NULL
495 }, {
496 &sensor_dev_attr_fan3_input.dev_attr.attr,
497 &sensor_dev_attr_fan3_min.dev_attr.attr,
498 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
499 &sensor_dev_attr_fan3_fault.dev_attr.attr,
500 NULL
501 }, {
502 &sensor_dev_attr_fan4_input.dev_attr.attr,
503 &sensor_dev_attr_fan4_min.dev_attr.attr,
504 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
505 &sensor_dev_attr_fan4_fault.dev_attr.attr,
506 NULL
507 }, {
508 &sensor_dev_attr_fan5_input.dev_attr.attr,
509 &sensor_dev_attr_fan5_min.dev_attr.attr,
510 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
511 &sensor_dev_attr_fan5_fault.dev_attr.attr,
512 NULL
513 }, {
514 &sensor_dev_attr_fan6_input.dev_attr.attr,
515 &sensor_dev_attr_fan6_min.dev_attr.attr,
516 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
517 &sensor_dev_attr_fan6_fault.dev_attr.attr,
518 NULL
519 }, {
520 &sensor_dev_attr_fan7_input.dev_attr.attr,
521 &sensor_dev_attr_fan7_min.dev_attr.attr,
522 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
523 &sensor_dev_attr_fan7_fault.dev_attr.attr,
524 NULL
525 }, {
526 &sensor_dev_attr_fan8_input.dev_attr.attr,
527 &sensor_dev_attr_fan8_min.dev_attr.attr,
528 &sensor_dev_attr_fan8_alarm.dev_attr.attr,
529 &sensor_dev_attr_fan8_fault.dev_attr.attr,
530 NULL
531 }
532};
533
534static const struct attribute_group pc87427_group_fan[8] = {
535 { .attrs = pc87427_attributes_fan[0] },
536 { .attrs = pc87427_attributes_fan[1] },
537 { .attrs = pc87427_attributes_fan[2] },
538 { .attrs = pc87427_attributes_fan[3] },
539 { .attrs = pc87427_attributes_fan[4] },
540 { .attrs = pc87427_attributes_fan[5] },
541 { .attrs = pc87427_attributes_fan[6] },
542 { .attrs = pc87427_attributes_fan[7] },
543};
544
545
546
547static void update_pwm_enable(struct pc87427_data *data, int nr, u8 mode)
548{
549 int iobase = data->address[LD_FAN];
550 data->pwm_enable[nr] &= ~PWM_ENABLE_MODE_MASK;
551 data->pwm_enable[nr] |= mode;
552 outb(data->pwm_enable[nr], iobase + PC87427_REG_PWM_ENABLE);
553}
554
555static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
556 *devattr, char *buf)
557{
558 struct pc87427_data *data = pc87427_update_device(dev);
559 int nr = to_sensor_dev_attr(devattr)->index;
560 int pwm_enable;
561
562 pwm_enable = pwm_enable_from_reg(data->pwm_enable[nr]);
563 if (pwm_enable < 0)
564 return pwm_enable;
565 return sprintf(buf, "%d\n", pwm_enable);
566}
567
568static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
569 *devattr, const char *buf, size_t count)
570{
571 struct pc87427_data *data = dev_get_drvdata(dev);
572 int nr = to_sensor_dev_attr(devattr)->index;
573 unsigned long val;
574
575 if (strict_strtoul(buf, 10, &val) < 0 || val > 2)
576 return -EINVAL;
577
578 if (val == 2 && !(data->pwm_auto_ok & (1 << nr)))
579 return -EINVAL;
580
581 mutex_lock(&data->lock);
582 pc87427_readall_pwm(data, nr);
583 update_pwm_enable(data, nr, pwm_enable_to_reg(val, data->pwm[nr]));
584 mutex_unlock(&data->lock);
585
586 return count;
587}
588
589static ssize_t show_pwm(struct device *dev, struct device_attribute
590 *devattr, char *buf)
591{
592 struct pc87427_data *data = pc87427_update_device(dev);
593 int nr = to_sensor_dev_attr(devattr)->index;
594
595 return sprintf(buf, "%d\n", (int)data->pwm[nr]);
596}
597
598static ssize_t set_pwm(struct device *dev, struct device_attribute
599 *devattr, const char *buf, size_t count)
600{
601 struct pc87427_data *data = dev_get_drvdata(dev);
602 int nr = to_sensor_dev_attr(devattr)->index;
603 unsigned long val;
604 int iobase = data->address[LD_FAN];
605 u8 mode;
606
607 if (strict_strtoul(buf, 10, &val) < 0 || val > 0xff)
608 return -EINVAL;
609
610 mutex_lock(&data->lock);
611 pc87427_readall_pwm(data, nr);
612 mode = data->pwm_enable[nr] & PWM_ENABLE_MODE_MASK;
613 if (mode != PWM_MODE_MANUAL && mode != PWM_MODE_OFF) {
614 dev_notice(dev, "Can't set PWM%d duty cycle while not in "
615 "manual mode\n", nr + 1);
616 mutex_unlock(&data->lock);
617 return -EPERM;
618 }
619
620
621 if (mode == PWM_MODE_MANUAL && val == 0) {
622
623 update_pwm_enable(data, nr, PWM_MODE_OFF);
624 mode = PWM_MODE_OFF;
625 dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1,
626 "manual", "off");
627 } else if (mode == PWM_MODE_OFF && val != 0) {
628
629 update_pwm_enable(data, nr, PWM_MODE_MANUAL);
630 mode = PWM_MODE_MANUAL;
631 dev_dbg(dev, "Switching PWM%d from %s to %s\n", nr + 1,
632 "off", "manual");
633 }
634
635 data->pwm[nr] = val;
636 if (mode == PWM_MODE_MANUAL)
637 outb(val, iobase + PC87427_REG_PWM_DUTY);
638 mutex_unlock(&data->lock);
639
640 return count;
641}
642
643static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
644 show_pwm_enable, set_pwm_enable, 0);
645static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
646 show_pwm_enable, set_pwm_enable, 1);
647static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
648 show_pwm_enable, set_pwm_enable, 2);
649static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO,
650 show_pwm_enable, set_pwm_enable, 3);
651
652static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
653static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
654static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
655static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3);
656
657static struct attribute *pc87427_attributes_pwm[4][3] = {
658 {
659 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
660 &sensor_dev_attr_pwm1.dev_attr.attr,
661 NULL
662 }, {
663 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
664 &sensor_dev_attr_pwm2.dev_attr.attr,
665 NULL
666 }, {
667 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
668 &sensor_dev_attr_pwm3.dev_attr.attr,
669 NULL
670 }, {
671 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
672 &sensor_dev_attr_pwm4.dev_attr.attr,
673 NULL
674 }
675};
676
677static const struct attribute_group pc87427_group_pwm[4] = {
678 { .attrs = pc87427_attributes_pwm[0] },
679 { .attrs = pc87427_attributes_pwm[1] },
680 { .attrs = pc87427_attributes_pwm[2] },
681 { .attrs = pc87427_attributes_pwm[3] },
682};
683
684static ssize_t show_temp_input(struct device *dev, struct device_attribute
685 *devattr, char *buf)
686{
687 struct pc87427_data *data = pc87427_update_device(dev);
688 int nr = to_sensor_dev_attr(devattr)->index;
689
690 return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
691}
692
693static ssize_t show_temp_min(struct device *dev, struct device_attribute
694 *devattr, char *buf)
695{
696 struct pc87427_data *data = pc87427_update_device(dev);
697 int nr = to_sensor_dev_attr(devattr)->index;
698
699 return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_min[nr]));
700}
701
702static ssize_t show_temp_max(struct device *dev, struct device_attribute
703 *devattr, char *buf)
704{
705 struct pc87427_data *data = pc87427_update_device(dev);
706 int nr = to_sensor_dev_attr(devattr)->index;
707
708 return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_max[nr]));
709}
710
711static ssize_t show_temp_crit(struct device *dev, struct device_attribute
712 *devattr, char *buf)
713{
714 struct pc87427_data *data = pc87427_update_device(dev);
715 int nr = to_sensor_dev_attr(devattr)->index;
716
717 return sprintf(buf, "%ld\n", temp_from_reg8(data->temp_crit[nr]));
718}
719
720static ssize_t show_temp_type(struct device *dev, struct device_attribute
721 *devattr, char *buf)
722{
723 struct pc87427_data *data = pc87427_update_device(dev);
724 int nr = to_sensor_dev_attr(devattr)->index;
725
726 return sprintf(buf, "%u\n", temp_type_from_reg(data->temp_type[nr]));
727}
728
729static ssize_t show_temp_min_alarm(struct device *dev, struct device_attribute
730 *devattr, char *buf)
731{
732 struct pc87427_data *data = pc87427_update_device(dev);
733 int nr = to_sensor_dev_attr(devattr)->index;
734
735 return sprintf(buf, "%d\n", !!(data->temp_status[nr]
736 & TEMP_STATUS_LOWFLG));
737}
738
739static ssize_t show_temp_max_alarm(struct device *dev, struct device_attribute
740 *devattr, char *buf)
741{
742 struct pc87427_data *data = pc87427_update_device(dev);
743 int nr = to_sensor_dev_attr(devattr)->index;
744
745 return sprintf(buf, "%d\n", !!(data->temp_status[nr]
746 & TEMP_STATUS_HIGHFLG));
747}
748
749static ssize_t show_temp_crit_alarm(struct device *dev, struct device_attribute
750 *devattr, char *buf)
751{
752 struct pc87427_data *data = pc87427_update_device(dev);
753 int nr = to_sensor_dev_attr(devattr)->index;
754
755 return sprintf(buf, "%d\n", !!(data->temp_status[nr]
756 & TEMP_STATUS_CRITFLG));
757}
758
759static ssize_t show_temp_fault(struct device *dev, struct device_attribute
760 *devattr, char *buf)
761{
762 struct pc87427_data *data = pc87427_update_device(dev);
763 int nr = to_sensor_dev_attr(devattr)->index;
764
765 return sprintf(buf, "%d\n", !!(data->temp_status[nr]
766 & TEMP_STATUS_SENSERR));
767}
768
769static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0);
770static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input, NULL, 1);
771static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_input, NULL, 2);
772static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_input, NULL, 3);
773static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp_input, NULL, 4);
774static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp_input, NULL, 5);
775
776static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp_min, NULL, 0);
777static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO, show_temp_min, NULL, 1);
778static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO, show_temp_min, NULL, 2);
779static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO, show_temp_min, NULL, 3);
780static SENSOR_DEVICE_ATTR(temp5_min, S_IRUGO, show_temp_min, NULL, 4);
781static SENSOR_DEVICE_ATTR(temp6_min, S_IRUGO, show_temp_min, NULL, 5);
782
783static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max, NULL, 0);
784static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO, show_temp_max, NULL, 1);
785static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO, show_temp_max, NULL, 2);
786static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO, show_temp_max, NULL, 3);
787static SENSOR_DEVICE_ATTR(temp5_max, S_IRUGO, show_temp_max, NULL, 4);
788static SENSOR_DEVICE_ATTR(temp6_max, S_IRUGO, show_temp_max, NULL, 5);
789
790static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0);
791static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit, NULL, 1);
792static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit, NULL, 2);
793static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO, show_temp_crit, NULL, 3);
794static SENSOR_DEVICE_ATTR(temp5_crit, S_IRUGO, show_temp_crit, NULL, 4);
795static SENSOR_DEVICE_ATTR(temp6_crit, S_IRUGO, show_temp_crit, NULL, 5);
796
797static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
798static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
799static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
800static SENSOR_DEVICE_ATTR(temp4_type, S_IRUGO, show_temp_type, NULL, 3);
801static SENSOR_DEVICE_ATTR(temp5_type, S_IRUGO, show_temp_type, NULL, 4);
802static SENSOR_DEVICE_ATTR(temp6_type, S_IRUGO, show_temp_type, NULL, 5);
803
804static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO,
805 show_temp_min_alarm, NULL, 0);
806static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO,
807 show_temp_min_alarm, NULL, 1);
808static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO,
809 show_temp_min_alarm, NULL, 2);
810static SENSOR_DEVICE_ATTR(temp4_min_alarm, S_IRUGO,
811 show_temp_min_alarm, NULL, 3);
812static SENSOR_DEVICE_ATTR(temp5_min_alarm, S_IRUGO,
813 show_temp_min_alarm, NULL, 4);
814static SENSOR_DEVICE_ATTR(temp6_min_alarm, S_IRUGO,
815 show_temp_min_alarm, NULL, 5);
816
817static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO,
818 show_temp_max_alarm, NULL, 0);
819static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO,
820 show_temp_max_alarm, NULL, 1);
821static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO,
822 show_temp_max_alarm, NULL, 2);
823static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO,
824 show_temp_max_alarm, NULL, 3);
825static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO,
826 show_temp_max_alarm, NULL, 4);
827static SENSOR_DEVICE_ATTR(temp6_max_alarm, S_IRUGO,
828 show_temp_max_alarm, NULL, 5);
829
830static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO,
831 show_temp_crit_alarm, NULL, 0);
832static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO,
833 show_temp_crit_alarm, NULL, 1);
834static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO,
835 show_temp_crit_alarm, NULL, 2);
836static SENSOR_DEVICE_ATTR(temp4_crit_alarm, S_IRUGO,
837 show_temp_crit_alarm, NULL, 3);
838static SENSOR_DEVICE_ATTR(temp5_crit_alarm, S_IRUGO,
839 show_temp_crit_alarm, NULL, 4);
840static SENSOR_DEVICE_ATTR(temp6_crit_alarm, S_IRUGO,
841 show_temp_crit_alarm, NULL, 5);
842
843static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0);
844static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_temp_fault, NULL, 1);
845static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_temp_fault, NULL, 2);
846static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_temp_fault, NULL, 3);
847static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_temp_fault, NULL, 4);
848static SENSOR_DEVICE_ATTR(temp6_fault, S_IRUGO, show_temp_fault, NULL, 5);
849
850static struct attribute *pc87427_attributes_temp[6][10] = {
851 {
852 &sensor_dev_attr_temp1_input.dev_attr.attr,
853 &sensor_dev_attr_temp1_min.dev_attr.attr,
854 &sensor_dev_attr_temp1_max.dev_attr.attr,
855 &sensor_dev_attr_temp1_crit.dev_attr.attr,
856 &sensor_dev_attr_temp1_type.dev_attr.attr,
857 &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
858 &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
859 &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
860 &sensor_dev_attr_temp1_fault.dev_attr.attr,
861 NULL
862 }, {
863 &sensor_dev_attr_temp2_input.dev_attr.attr,
864 &sensor_dev_attr_temp2_min.dev_attr.attr,
865 &sensor_dev_attr_temp2_max.dev_attr.attr,
866 &sensor_dev_attr_temp2_crit.dev_attr.attr,
867 &sensor_dev_attr_temp2_type.dev_attr.attr,
868 &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
869 &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
870 &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
871 &sensor_dev_attr_temp2_fault.dev_attr.attr,
872 NULL
873 }, {
874 &sensor_dev_attr_temp3_input.dev_attr.attr,
875 &sensor_dev_attr_temp3_min.dev_attr.attr,
876 &sensor_dev_attr_temp3_max.dev_attr.attr,
877 &sensor_dev_attr_temp3_crit.dev_attr.attr,
878 &sensor_dev_attr_temp3_type.dev_attr.attr,
879 &sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
880 &sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
881 &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
882 &sensor_dev_attr_temp3_fault.dev_attr.attr,
883 NULL
884 }, {
885 &sensor_dev_attr_temp4_input.dev_attr.attr,
886 &sensor_dev_attr_temp4_min.dev_attr.attr,
887 &sensor_dev_attr_temp4_max.dev_attr.attr,
888 &sensor_dev_attr_temp4_crit.dev_attr.attr,
889 &sensor_dev_attr_temp4_type.dev_attr.attr,
890 &sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
891 &sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
892 &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
893 &sensor_dev_attr_temp4_fault.dev_attr.attr,
894 NULL
895 }, {
896 &sensor_dev_attr_temp5_input.dev_attr.attr,
897 &sensor_dev_attr_temp5_min.dev_attr.attr,
898 &sensor_dev_attr_temp5_max.dev_attr.attr,
899 &sensor_dev_attr_temp5_crit.dev_attr.attr,
900 &sensor_dev_attr_temp5_type.dev_attr.attr,
901 &sensor_dev_attr_temp5_min_alarm.dev_attr.attr,
902 &sensor_dev_attr_temp5_max_alarm.dev_attr.attr,
903 &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr,
904 &sensor_dev_attr_temp5_fault.dev_attr.attr,
905 NULL
906 }, {
907 &sensor_dev_attr_temp6_input.dev_attr.attr,
908 &sensor_dev_attr_temp6_min.dev_attr.attr,
909 &sensor_dev_attr_temp6_max.dev_attr.attr,
910 &sensor_dev_attr_temp6_crit.dev_attr.attr,
911 &sensor_dev_attr_temp6_type.dev_attr.attr,
912 &sensor_dev_attr_temp6_min_alarm.dev_attr.attr,
913 &sensor_dev_attr_temp6_max_alarm.dev_attr.attr,
914 &sensor_dev_attr_temp6_crit_alarm.dev_attr.attr,
915 &sensor_dev_attr_temp6_fault.dev_attr.attr,
916 NULL
917 }
918};
919
920static const struct attribute_group pc87427_group_temp[6] = {
921 { .attrs = pc87427_attributes_temp[0] },
922 { .attrs = pc87427_attributes_temp[1] },
923 { .attrs = pc87427_attributes_temp[2] },
924 { .attrs = pc87427_attributes_temp[3] },
925 { .attrs = pc87427_attributes_temp[4] },
926 { .attrs = pc87427_attributes_temp[5] },
927};
928
929static ssize_t show_name(struct device *dev, struct device_attribute
930 *devattr, char *buf)
931{
932 struct pc87427_data *data = dev_get_drvdata(dev);
933
934 return sprintf(buf, "%s\n", data->name);
935}
936static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
937
938
939
940
941
942
943static void pc87427_release_regions(struct platform_device *pdev, int count)
944{
945 struct resource *res;
946 int i;
947
948 for (i = 0; i < count; i++) {
949 res = platform_get_resource(pdev, IORESOURCE_IO, i);
950 release_region(res->start, resource_size(res));
951 }
952}
953
954static int __devinit pc87427_request_regions(struct platform_device *pdev,
955 int count)
956{
957 struct resource *res;
958 int i, err = 0;
959
960 for (i = 0; i < count; i++) {
961 res = platform_get_resource(pdev, IORESOURCE_IO, i);
962 if (!res) {
963 err = -ENOENT;
964 dev_err(&pdev->dev, "Missing resource #%d\n", i);
965 break;
966 }
967 if (!request_region(res->start, resource_size(res), DRVNAME)) {
968 err = -EBUSY;
969 dev_err(&pdev->dev,
970 "Failed to request region 0x%lx-0x%lx\n",
971 (unsigned long)res->start,
972 (unsigned long)res->end);
973 break;
974 }
975 }
976
977 if (err && i)
978 pc87427_release_regions(pdev, i);
979
980 return err;
981}
982
983static void __devinit pc87427_init_device(struct device *dev)
984{
985 struct pc87427_sio_data *sio_data = dev->platform_data;
986 struct pc87427_data *data = dev_get_drvdata(dev);
987 int i;
988 u8 reg;
989
990
991 reg = pc87427_read8(data, LD_FAN, PC87427_REG_BANK);
992 if (!(reg & 0x80))
993 dev_warn(dev, "%s module not ready!\n", "FMC");
994
995
996 for (i = 0; i < 8; i++) {
997 if (!(sio_data->has_fanin & (1 << i)))
998 continue;
999 reg = pc87427_read8_bank(data, LD_FAN, BANK_FM(i),
1000 PC87427_REG_FAN_STATUS);
1001 if (reg & FAN_STATUS_MONEN)
1002 data->fan_enabled |= (1 << i);
1003 }
1004
1005 if (!data->fan_enabled) {
1006 dev_dbg(dev, "Enabling monitoring of all fans\n");
1007 for (i = 0; i < 8; i++) {
1008 if (!(sio_data->has_fanin & (1 << i)))
1009 continue;
1010 pc87427_write8_bank(data, LD_FAN, BANK_FM(i),
1011 PC87427_REG_FAN_STATUS,
1012 FAN_STATUS_MONEN);
1013 }
1014 data->fan_enabled = sio_data->has_fanin;
1015 }
1016
1017
1018 for (i = 0; i < 4; i++) {
1019 if (!(sio_data->has_fanout & (1 << i)))
1020 continue;
1021 reg = pc87427_read8_bank(data, LD_FAN, BANK_FC(i),
1022 PC87427_REG_PWM_ENABLE);
1023 if (reg & PWM_ENABLE_CTLEN)
1024 data->pwm_enabled |= (1 << i);
1025
1026
1027
1028
1029 if ((reg & PWM_ENABLE_MODE_MASK) == PWM_MODE_AUTO) {
1030 dev_dbg(dev, "PWM%d is in automatic control mode\n",
1031 i + 1);
1032 data->pwm_auto_ok |= (1 << i);
1033 }
1034 }
1035
1036
1037 reg = pc87427_read8(data, LD_TEMP, PC87427_REG_BANK);
1038 if (!(reg & 0x80))
1039 dev_warn(dev, "%s module not ready!\n", "HMC");
1040
1041
1042 for (i = 0; i < 6; i++) {
1043 reg = pc87427_read8_bank(data, LD_TEMP, BANK_TM(i),
1044 PC87427_REG_TEMP_STATUS);
1045 if (reg & TEMP_STATUS_CHANEN)
1046 data->temp_enabled |= (1 << i);
1047 }
1048}
1049
1050static void pc87427_remove_files(struct device *dev)
1051{
1052 struct pc87427_data *data = dev_get_drvdata(dev);
1053 int i;
1054
1055 device_remove_file(dev, &dev_attr_name);
1056 for (i = 0; i < 8; i++) {
1057 if (!(data->fan_enabled & (1 << i)))
1058 continue;
1059 sysfs_remove_group(&dev->kobj, &pc87427_group_fan[i]);
1060 }
1061 for (i = 0; i < 4; i++) {
1062 if (!(data->pwm_enabled & (1 << i)))
1063 continue;
1064 sysfs_remove_group(&dev->kobj, &pc87427_group_pwm[i]);
1065 }
1066 for (i = 0; i < 6; i++) {
1067 if (!(data->temp_enabled & (1 << i)))
1068 continue;
1069 sysfs_remove_group(&dev->kobj, &pc87427_group_temp[i]);
1070 }
1071}
1072
1073static int __devinit pc87427_probe(struct platform_device *pdev)
1074{
1075 struct pc87427_sio_data *sio_data = pdev->dev.platform_data;
1076 struct pc87427_data *data;
1077 int i, err, res_count;
1078
1079 data = kzalloc(sizeof(struct pc87427_data), GFP_KERNEL);
1080 if (!data) {
1081 err = -ENOMEM;
1082 pr_err("Out of memory\n");
1083 goto exit;
1084 }
1085
1086 data->address[0] = sio_data->address[0];
1087 data->address[1] = sio_data->address[1];
1088 res_count = (data->address[0] != 0) + (data->address[1] != 0);
1089
1090 err = pc87427_request_regions(pdev, res_count);
1091 if (err)
1092 goto exit_kfree;
1093
1094 mutex_init(&data->lock);
1095 data->name = "pc87427";
1096 platform_set_drvdata(pdev, data);
1097 pc87427_init_device(&pdev->dev);
1098
1099
1100 err = device_create_file(&pdev->dev, &dev_attr_name);
1101 if (err)
1102 goto exit_release_region;
1103 for (i = 0; i < 8; i++) {
1104 if (!(data->fan_enabled & (1 << i)))
1105 continue;
1106 err = sysfs_create_group(&pdev->dev.kobj,
1107 &pc87427_group_fan[i]);
1108 if (err)
1109 goto exit_remove_files;
1110 }
1111 for (i = 0; i < 4; i++) {
1112 if (!(data->pwm_enabled & (1 << i)))
1113 continue;
1114 err = sysfs_create_group(&pdev->dev.kobj,
1115 &pc87427_group_pwm[i]);
1116 if (err)
1117 goto exit_remove_files;
1118 }
1119 for (i = 0; i < 6; i++) {
1120 if (!(data->temp_enabled & (1 << i)))
1121 continue;
1122 err = sysfs_create_group(&pdev->dev.kobj,
1123 &pc87427_group_temp[i]);
1124 if (err)
1125 goto exit_remove_files;
1126 }
1127
1128 data->hwmon_dev = hwmon_device_register(&pdev->dev);
1129 if (IS_ERR(data->hwmon_dev)) {
1130 err = PTR_ERR(data->hwmon_dev);
1131 dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
1132 goto exit_remove_files;
1133 }
1134
1135 return 0;
1136
1137exit_remove_files:
1138 pc87427_remove_files(&pdev->dev);
1139exit_release_region:
1140 pc87427_release_regions(pdev, res_count);
1141exit_kfree:
1142 platform_set_drvdata(pdev, NULL);
1143 kfree(data);
1144exit:
1145 return err;
1146}
1147
1148static int __devexit pc87427_remove(struct platform_device *pdev)
1149{
1150 struct pc87427_data *data = platform_get_drvdata(pdev);
1151 int res_count;
1152
1153 res_count = (data->address[0] != 0) + (data->address[1] != 0);
1154
1155 hwmon_device_unregister(data->hwmon_dev);
1156 pc87427_remove_files(&pdev->dev);
1157 platform_set_drvdata(pdev, NULL);
1158 kfree(data);
1159
1160 pc87427_release_regions(pdev, res_count);
1161
1162 return 0;
1163}
1164
1165
1166static struct platform_driver pc87427_driver = {
1167 .driver = {
1168 .owner = THIS_MODULE,
1169 .name = DRVNAME,
1170 },
1171 .probe = pc87427_probe,
1172 .remove = __devexit_p(pc87427_remove),
1173};
1174
1175static int __init pc87427_device_add(const struct pc87427_sio_data *sio_data)
1176{
1177 struct resource res[2] = {
1178 { .flags = IORESOURCE_IO },
1179 { .flags = IORESOURCE_IO },
1180 };
1181 int err, i, res_count;
1182
1183 res_count = 0;
1184 for (i = 0; i < 2; i++) {
1185 if (!sio_data->address[i])
1186 continue;
1187 res[res_count].start = sio_data->address[i];
1188 res[res_count].end = sio_data->address[i] + REGION_LENGTH - 1;
1189 res[res_count].name = logdev_str[i];
1190
1191 err = acpi_check_resource_conflict(&res[res_count]);
1192 if (err)
1193 goto exit;
1194
1195 res_count++;
1196 }
1197
1198 pdev = platform_device_alloc(DRVNAME, res[0].start);
1199 if (!pdev) {
1200 err = -ENOMEM;
1201 pr_err("Device allocation failed\n");
1202 goto exit;
1203 }
1204
1205 err = platform_device_add_resources(pdev, res, res_count);
1206 if (err) {
1207 pr_err("Device resource addition failed (%d)\n", err);
1208 goto exit_device_put;
1209 }
1210
1211 err = platform_device_add_data(pdev, sio_data,
1212 sizeof(struct pc87427_sio_data));
1213 if (err) {
1214 pr_err("Platform data allocation failed\n");
1215 goto exit_device_put;
1216 }
1217
1218 err = platform_device_add(pdev);
1219 if (err) {
1220 pr_err("Device addition failed (%d)\n", err);
1221 goto exit_device_put;
1222 }
1223
1224 return 0;
1225
1226exit_device_put:
1227 platform_device_put(pdev);
1228exit:
1229 return err;
1230}
1231
1232static int __init pc87427_find(int sioaddr, struct pc87427_sio_data *sio_data)
1233{
1234 u16 val;
1235 u8 cfg, cfg_b;
1236 int i, err = 0;
1237
1238
1239 val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID);
1240 if (val != 0xf2) {
1241 err = -ENODEV;
1242 goto exit;
1243 }
1244
1245 for (i = 0; i < 2; i++) {
1246 sio_data->address[i] = 0;
1247
1248 superio_outb(sioaddr, SIOREG_LDSEL, logdev[i]);
1249
1250 val = superio_inb(sioaddr, SIOREG_ACT);
1251 if (!(val & 0x01)) {
1252 pr_info("Logical device 0x%02x not activated\n",
1253 logdev[i]);
1254 continue;
1255 }
1256
1257 val = superio_inb(sioaddr, SIOREG_MAP);
1258 if (val & 0x01) {
1259 pr_warn("Logical device 0x%02x is memory-mapped, "
1260 "can't use\n", logdev[i]);
1261 continue;
1262 }
1263
1264 val = (superio_inb(sioaddr, SIOREG_IOBASE) << 8)
1265 | superio_inb(sioaddr, SIOREG_IOBASE + 1);
1266 if (!val) {
1267 pr_info("I/O base address not set for logical device "
1268 "0x%02x\n", logdev[i]);
1269 continue;
1270 }
1271 sio_data->address[i] = val;
1272 }
1273
1274
1275 if (!sio_data->address[0] && !sio_data->address[1]) {
1276 err = -ENODEV;
1277 goto exit;
1278 }
1279
1280
1281 sio_data->has_fanin = (1 << 2) | (1 << 3);
1282
1283 cfg = superio_inb(sioaddr, SIOREG_CF2);
1284 if (!(cfg & (1 << 3)))
1285 sio_data->has_fanin |= (1 << 0);
1286 if (!(cfg & (1 << 2)))
1287 sio_data->has_fanin |= (1 << 4);
1288
1289 cfg = superio_inb(sioaddr, SIOREG_CFD);
1290 if (!(cfg & (1 << 0)))
1291 sio_data->has_fanin |= (1 << 1);
1292
1293 cfg = superio_inb(sioaddr, SIOREG_CF4);
1294 if (!(cfg & (1 << 0)))
1295 sio_data->has_fanin |= (1 << 7);
1296 cfg_b = superio_inb(sioaddr, SIOREG_CFB);
1297 if (!(cfg & (1 << 1)) && (cfg_b & (1 << 3)))
1298 sio_data->has_fanin |= (1 << 5);
1299 cfg = superio_inb(sioaddr, SIOREG_CF3);
1300 if ((cfg & (1 << 3)) && !(cfg_b & (1 << 5)))
1301 sio_data->has_fanin |= (1 << 6);
1302
1303
1304 sio_data->has_fanout = (1 << 0);
1305 if (cfg_b & (1 << 0))
1306 sio_data->has_fanout |= (1 << 3);
1307
1308 cfg = superio_inb(sioaddr, SIOREG_CFC);
1309 if (!(cfg & (1 << 4))) {
1310 if (cfg_b & (1 << 1))
1311 sio_data->has_fanout |= (1 << 1);
1312 if (cfg_b & (1 << 2))
1313 sio_data->has_fanout |= (1 << 2);
1314 }
1315
1316
1317 cfg = superio_inb(sioaddr, SIOREG_CF5);
1318 if (cfg & (1 << 6))
1319 sio_data->has_fanout |= (1 << 1);
1320 if (cfg & (1 << 5))
1321 sio_data->has_fanout |= (1 << 2);
1322
1323exit:
1324 superio_exit(sioaddr);
1325 return err;
1326}
1327
1328static int __init pc87427_init(void)
1329{
1330 int err;
1331 struct pc87427_sio_data sio_data;
1332
1333 if (pc87427_find(0x2e, &sio_data)
1334 && pc87427_find(0x4e, &sio_data))
1335 return -ENODEV;
1336
1337 err = platform_driver_register(&pc87427_driver);
1338 if (err)
1339 goto exit;
1340
1341
1342 err = pc87427_device_add(&sio_data);
1343 if (err)
1344 goto exit_driver;
1345
1346 return 0;
1347
1348exit_driver:
1349 platform_driver_unregister(&pc87427_driver);
1350exit:
1351 return err;
1352}
1353
1354static void __exit pc87427_exit(void)
1355{
1356 platform_device_unregister(pdev);
1357 platform_driver_unregister(&pc87427_driver);
1358}
1359
1360MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1361MODULE_DESCRIPTION("PC87427 hardware monitoring driver");
1362MODULE_LICENSE("GPL");
1363
1364module_init(pc87427_init);
1365module_exit(pc87427_exit);
1366
