?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node
[linux-2.6/mini2440.git] / drivers / hwmon / w83627ehf.c
blobbb5e78748783b71c465bdcc14c478cdcc06cf9c9
1 /*
2 w83627ehf - Driver for the hardware monitoring functionality of
3 the Winbond W83627EHF Super-I/O chip
4 Copyright (C) 2005 Jean Delvare <khali@linux-fr.org>
5 Copyright (C) 2006 Yuan Mu (Winbond),
6 Rudolf Marek <r.marek@assembler.cz>
7 David Hubbard <david.c.hubbard@gmail.com>
8
9 Shamelessly ripped from the w83627hf driver
10 Copyright (C) 2003 Mark Studebaker
11
12 Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help
13 in testing and debugging this driver.
14
15 This driver also supports the W83627EHG, which is the lead-free
16 version of the W83627EHF.
17
18 This program is free software; you can redistribute it and/or modify
19 it under the terms of the GNU General Public License as published by
20 the Free Software Foundation; either version 2 of the License, or
21 (at your option) any later version.
22
23 This program is distributed in the hope that it will be useful,
24 but WITHOUT ANY WARRANTY; without even the implied warranty of
25 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 GNU General Public License for more details.
27
28 You should have received a copy of the GNU General Public License
29 along with this program; if not, write to the Free Software
30 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31
32
33 Supports the following chips:
34
35 Chip #vin #fan #pwm #temp chip IDs man ID
36 w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
37 0x8860 0xa1
38 w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
39 w83627dhg-p 9 5 4 3 0xb070 0xc1 0x5ca3
40 w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
41 */
42
43 #include <linux/module.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/jiffies.h>
47 #include <linux/platform_device.h>
48 #include <linux/hwmon.h>
49 #include <linux/hwmon-sysfs.h>
50 #include <linux/hwmon-vid.h>
51 #include <linux/err.h>
52 #include <linux/mutex.h>
53 #include <linux/acpi.h>
54 #include <linux/io.h>
55 #include "lm75.h"
56
57 enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg };
58
59 /* used to set data->name = w83627ehf_device_names[data->sio_kind] */
60 static const char * w83627ehf_device_names[] = {
61 "w83627ehf",
62 "w83627dhg",
63 "w83627dhg",
64 "w83667hg",
65 };
66
67 static unsigned short force_id;
68 module_param(force_id, ushort, 0);
69 MODULE_PARM_DESC(force_id, "Override the detected device ID");
70
71 #define DRVNAME "w83627ehf"
72
73 /*
74 * Super-I/O constants and functions
75 */
76
77 #define W83627EHF_LD_HWM 0x0b
78 #define W83667HG_LD_VID 0x0d
79
80 #define SIO_REG_LDSEL 0x07 /* Logical device select */
81 #define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
82 #define SIO_REG_EN_VRM10 0x2C /* GPIO3, GPIO4 selection */
83 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
84 #define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
85 #define SIO_REG_VID_CTRL 0xF0 /* VID control */
86 #define SIO_REG_VID_DATA 0xF1 /* VID data */
87
88 #define SIO_W83627EHF_ID 0x8850
89 #define SIO_W83627EHG_ID 0x8860
90 #define SIO_W83627DHG_ID 0xa020
91 #define SIO_W83627DHG_P_ID 0xb070
92 #define SIO_W83667HG_ID 0xa510
93 #define SIO_ID_MASK 0xFFF0
94
95 static inline void
96 superio_outb(int ioreg, int reg, int val)
97 {
98 outb(reg, ioreg);
99 outb(val, ioreg + 1);
100 }
101
102 static inline int
103 superio_inb(int ioreg, int reg)
104 {
105 outb(reg, ioreg);
106 return inb(ioreg + 1);
107 }
108
109 static inline void
110 superio_select(int ioreg, int ld)
111 {
112 outb(SIO_REG_LDSEL, ioreg);
113 outb(ld, ioreg + 1);
114 }
115
116 static inline void
117 superio_enter(int ioreg)
118 {
119 outb(0x87, ioreg);
120 outb(0x87, ioreg);
121 }
122
123 static inline void
124 superio_exit(int ioreg)
125 {
126 outb(0x02, ioreg);
127 outb(0x02, ioreg + 1);
128 }
129
130 /*
131 * ISA constants
132 */
133
134 #define IOREGION_ALIGNMENT ~7
135 #define IOREGION_OFFSET 5
136 #define IOREGION_LENGTH 2
137 #define ADDR_REG_OFFSET 0
138 #define DATA_REG_OFFSET 1
139
140 #define W83627EHF_REG_BANK 0x4E
141 #define W83627EHF_REG_CONFIG 0x40
142
143 /* Not currently used:
144 * REG_MAN_ID has the value 0x5ca3 for all supported chips.
145 * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
146 * REG_MAN_ID is at port 0x4f
147 * REG_CHIP_ID is at port 0x58 */
148
149 static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
150 static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
151
152 /* The W83627EHF registers for nr=7,8,9 are in bank 5 */
153 #define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
154 (0x554 + (((nr) - 7) * 2)))
155 #define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
156 (0x555 + (((nr) - 7) * 2)))
157 #define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
158 (0x550 + (nr) - 7))
159
160 #define W83627EHF_REG_TEMP1 0x27
161 #define W83627EHF_REG_TEMP1_HYST 0x3a
162 #define W83627EHF_REG_TEMP1_OVER 0x39
163 static const u16 W83627EHF_REG_TEMP[] = { 0x150, 0x250 };
164 static const u16 W83627EHF_REG_TEMP_HYST[] = { 0x153, 0x253 };
165 static const u16 W83627EHF_REG_TEMP_OVER[] = { 0x155, 0x255 };
166 static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0x152, 0x252 };
167
168 /* Fan clock dividers are spread over the following five registers */
169 #define W83627EHF_REG_FANDIV1 0x47
170 #define W83627EHF_REG_FANDIV2 0x4B
171 #define W83627EHF_REG_VBAT 0x5D
172 #define W83627EHF_REG_DIODE 0x59
173 #define W83627EHF_REG_SMI_OVT 0x4C
174
175 #define W83627EHF_REG_ALARM1 0x459
176 #define W83627EHF_REG_ALARM2 0x45A
177 #define W83627EHF_REG_ALARM3 0x45B
178
179 /* SmartFan registers */
180 /* DC or PWM output fan configuration */
181 static const u8 W83627EHF_REG_PWM_ENABLE[] = {
182 0x04, /* SYS FAN0 output mode and PWM mode */
183 0x04, /* CPU FAN0 output mode and PWM mode */
184 0x12, /* AUX FAN mode */
185 0x62, /* CPU fan1 mode */
186 };
187
188 static const u8 W83627EHF_PWM_MODE_SHIFT[] = { 0, 1, 0, 6 };
189 static const u8 W83627EHF_PWM_ENABLE_SHIFT[] = { 2, 4, 1, 4 };
190
191 /* FAN Duty Cycle, be used to control */
192 static const u8 W83627EHF_REG_PWM[] = { 0x01, 0x03, 0x11, 0x61 };
193 static const u8 W83627EHF_REG_TARGET[] = { 0x05, 0x06, 0x13, 0x63 };
194 static const u8 W83627EHF_REG_TOLERANCE[] = { 0x07, 0x07, 0x14, 0x62 };
195
196
197 /* Advanced Fan control, some values are common for all fans */
198 static const u8 W83627EHF_REG_FAN_MIN_OUTPUT[] = { 0x08, 0x09, 0x15, 0x64 };
199 static const u8 W83627EHF_REG_FAN_STOP_TIME[] = { 0x0C, 0x0D, 0x17, 0x66 };
200
201 /*
202 * Conversions
203 */
204
205 /* 1 is PWM mode, output in ms */
206 static inline unsigned int step_time_from_reg(u8 reg, u8 mode)
207 {
208 return mode ? 100 * reg : 400 * reg;
209 }
210
211 static inline u8 step_time_to_reg(unsigned int msec, u8 mode)
212 {
213 return SENSORS_LIMIT((mode ? (msec + 50) / 100 :
214 (msec + 200) / 400), 1, 255);
215 }
216
217 static inline unsigned int
218 fan_from_reg(u8 reg, unsigned int div)
219 {
220 if (reg == 0 || reg == 255)
221 return 0;
222 return 1350000U / (reg * div);
223 }
224
225 static inline unsigned int
226 div_from_reg(u8 reg)
227 {
228 return 1 << reg;
229 }
230
231 static inline int
232 temp1_from_reg(s8 reg)
233 {
234 return reg * 1000;
235 }
236
237 static inline s8
238 temp1_to_reg(long temp, int min, int max)
239 {
240 if (temp <= min)
241 return min / 1000;
242 if (temp >= max)
243 return max / 1000;
244 if (temp < 0)
245 return (temp - 500) / 1000;
246 return (temp + 500) / 1000;
247 }
248
249 /* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
250
251 static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 };
252
253 static inline long in_from_reg(u8 reg, u8 nr)
254 {
255 return reg * scale_in[nr];
256 }
257
258 static inline u8 in_to_reg(u32 val, u8 nr)
259 {
260 return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255);
261 }
262
263 /*
264 * Data structures and manipulation thereof
265 */
266
267 struct w83627ehf_data {
268 int addr; /* IO base of hw monitor block */
269 const char *name;
270
271 struct device *hwmon_dev;
272 struct mutex lock;
273
274 struct mutex update_lock;
275 char valid; /* !=0 if following fields are valid */
276 unsigned long last_updated; /* In jiffies */
277
278 /* Register values */
279 u8 in_num; /* number of in inputs we have */
280 u8 in[10]; /* Register value */
281 u8 in_max[10]; /* Register value */
282 u8 in_min[10]; /* Register value */
283 u8 fan[5];
284 u8 fan_min[5];
285 u8 fan_div[5];
286 u8 has_fan; /* some fan inputs can be disabled */
287 u8 temp_type[3];
288 s8 temp1;
289 s8 temp1_max;
290 s8 temp1_max_hyst;
291 s16 temp[2];
292 s16 temp_max[2];
293 s16 temp_max_hyst[2];
294 u32 alarms;
295
296 u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
297 u8 pwm_enable[4]; /* 1->manual
298 2->thermal cruise (also called SmartFan I) */
299 u8 pwm_num; /* number of pwm */
300 u8 pwm[4];
301 u8 target_temp[4];
302 u8 tolerance[4];
303
304 u8 fan_min_output[4]; /* minimum fan speed */
305 u8 fan_stop_time[4];
306
307 u8 vid;
308 u8 vrm;
309
310 u8 temp3_disable;
311 u8 in6_skip;
312 };
313
314 struct w83627ehf_sio_data {
315 int sioreg;
316 enum kinds kind;
317 };
318
319 static inline int is_word_sized(u16 reg)
320 {
321 return (((reg & 0xff00) == 0x100
322 || (reg & 0xff00) == 0x200)
323 && ((reg & 0x00ff) == 0x50
324 || (reg & 0x00ff) == 0x53
325 || (reg & 0x00ff) == 0x55));
326 }
327
328 /* Registers 0x50-0x5f are banked */
329 static inline void w83627ehf_set_bank(struct w83627ehf_data *data, u16 reg)
330 {
331 if ((reg & 0x00f0) == 0x50) {
332 outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
333 outb_p(reg >> 8, data->addr + DATA_REG_OFFSET);
334 }
335 }
336
337 /* Not strictly necessary, but play it safe for now */
338 static inline void w83627ehf_reset_bank(struct w83627ehf_data *data, u16 reg)
339 {
340 if (reg & 0xff00) {
341 outb_p(W83627EHF_REG_BANK, data->addr + ADDR_REG_OFFSET);
342 outb_p(0, data->addr + DATA_REG_OFFSET);
343 }
344 }
345
346 static u16 w83627ehf_read_value(struct w83627ehf_data *data, u16 reg)
347 {
348 int res, word_sized = is_word_sized(reg);
349
350 mutex_lock(&data->lock);
351
352 w83627ehf_set_bank(data, reg);
353 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
354 res = inb_p(data->addr + DATA_REG_OFFSET);
355 if (word_sized) {
356 outb_p((reg & 0xff) + 1,
357 data->addr + ADDR_REG_OFFSET);
358 res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET);
359 }
360 w83627ehf_reset_bank(data, reg);
361
362 mutex_unlock(&data->lock);
363
364 return res;
365 }
366
367 static int w83627ehf_write_value(struct w83627ehf_data *data, u16 reg, u16 value)
368 {
369 int word_sized = is_word_sized(reg);
370
371 mutex_lock(&data->lock);
372
373 w83627ehf_set_bank(data, reg);
374 outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
375 if (word_sized) {
376 outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
377 outb_p((reg & 0xff) + 1,
378 data->addr + ADDR_REG_OFFSET);
379 }
380 outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
381 w83627ehf_reset_bank(data, reg);
382
383 mutex_unlock(&data->lock);
384 return 0;
385 }
386
387 /* This function assumes that the caller holds data->update_lock */
388 static void w83627ehf_write_fan_div(struct w83627ehf_data *data, int nr)
389 {
390 u8 reg;
391
392 switch (nr) {
393 case 0:
394 reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0xcf)
395 | ((data->fan_div[0] & 0x03) << 4);
396 /* fan5 input control bit is write only, compute the value */
397 reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
398 w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
399 reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xdf)
400 | ((data->fan_div[0] & 0x04) << 3);
401 w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
402 break;
403 case 1:
404 reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV1) & 0x3f)
405 | ((data->fan_div[1] & 0x03) << 6);
406 /* fan5 input control bit is write only, compute the value */
407 reg |= (data->has_fan & (1 << 4)) ? 1 : 0;
408 w83627ehf_write_value(data, W83627EHF_REG_FANDIV1, reg);
409 reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0xbf)
410 | ((data->fan_div[1] & 0x04) << 4);
411 w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
412 break;
413 case 2:
414 reg = (w83627ehf_read_value(data, W83627EHF_REG_FANDIV2) & 0x3f)
415 | ((data->fan_div[2] & 0x03) << 6);
416 w83627ehf_write_value(data, W83627EHF_REG_FANDIV2, reg);
417 reg = (w83627ehf_read_value(data, W83627EHF_REG_VBAT) & 0x7f)
418 | ((data->fan_div[2] & 0x04) << 5);
419 w83627ehf_write_value(data, W83627EHF_REG_VBAT, reg);
420 break;
421 case 3:
422 reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0xfc)
423 | (data->fan_div[3] & 0x03);
424 w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
425 reg = (w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT) & 0x7f)
426 | ((data->fan_div[3] & 0x04) << 5);
427 w83627ehf_write_value(data, W83627EHF_REG_SMI_OVT, reg);
428 break;
429 case 4:
430 reg = (w83627ehf_read_value(data, W83627EHF_REG_DIODE) & 0x73)
431 | ((data->fan_div[4] & 0x03) << 2)
432 | ((data->fan_div[4] & 0x04) << 5);
433 w83627ehf_write_value(data, W83627EHF_REG_DIODE, reg);
434 break;
435 }
436 }
437
438 static void w83627ehf_update_fan_div(struct w83627ehf_data *data)
439 {
440 int i;
441
442 i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
443 data->fan_div[0] = (i >> 4) & 0x03;
444 data->fan_div[1] = (i >> 6) & 0x03;
445 i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV2);
446 data->fan_div[2] = (i >> 6) & 0x03;
447 i = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
448 data->fan_div[0] |= (i >> 3) & 0x04;
449 data->fan_div[1] |= (i >> 4) & 0x04;
450 data->fan_div[2] |= (i >> 5) & 0x04;
451 if (data->has_fan & ((1 << 3) | (1 << 4))) {
452 i = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
453 data->fan_div[3] = i & 0x03;
454 data->fan_div[4] = ((i >> 2) & 0x03)
455 | ((i >> 5) & 0x04);
456 }
457 if (data->has_fan & (1 << 3)) {
458 i = w83627ehf_read_value(data, W83627EHF_REG_SMI_OVT);
459 data->fan_div[3] |= (i >> 5) & 0x04;
460 }
461 }
462
463 static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
464 {
465 struct w83627ehf_data *data = dev_get_drvdata(dev);
466 int pwmcfg = 0, tolerance = 0; /* shut up the compiler */
467 int i;
468
469 mutex_lock(&data->update_lock);
470
471 if (time_after(jiffies, data->last_updated + HZ + HZ/2)
472 || !data->valid) {
473 /* Fan clock dividers */
474 w83627ehf_update_fan_div(data);
475
476 /* Measured voltages and limits */
477 for (i = 0; i < data->in_num; i++) {
478 data->in[i] = w83627ehf_read_value(data,
479 W83627EHF_REG_IN(i));
480 data->in_min[i] = w83627ehf_read_value(data,
481 W83627EHF_REG_IN_MIN(i));
482 data->in_max[i] = w83627ehf_read_value(data,
483 W83627EHF_REG_IN_MAX(i));
484 }
485
486 /* Measured fan speeds and limits */
487 for (i = 0; i < 5; i++) {
488 if (!(data->has_fan & (1 << i)))
489 continue;
490
491 data->fan[i] = w83627ehf_read_value(data,
492 W83627EHF_REG_FAN[i]);
493 data->fan_min[i] = w83627ehf_read_value(data,
494 W83627EHF_REG_FAN_MIN[i]);
495
496 /* If we failed to measure the fan speed and clock
497 divider can be increased, let's try that for next
498 time */
499 if (data->fan[i] == 0xff
500 && data->fan_div[i] < 0x07) {
501 dev_dbg(dev, "Increasing fan%d "
502 "clock divider from %u to %u\n",
503 i + 1, div_from_reg(data->fan_div[i]),
504 div_from_reg(data->fan_div[i] + 1));
505 data->fan_div[i]++;
506 w83627ehf_write_fan_div(data, i);
507 /* Preserve min limit if possible */
508 if (data->fan_min[i] >= 2
509 && data->fan_min[i] != 255)
510 w83627ehf_write_value(data,
511 W83627EHF_REG_FAN_MIN[i],
512 (data->fan_min[i] /= 2));
513 }
514 }
515
516 for (i = 0; i < 4; i++) {
517 /* pwmcfg, tolerance mapped for i=0, i=1 to same reg */
518 if (i != 1) {
519 pwmcfg = w83627ehf_read_value(data,
520 W83627EHF_REG_PWM_ENABLE[i]);
521 tolerance = w83627ehf_read_value(data,
522 W83627EHF_REG_TOLERANCE[i]);
523 }
524 data->pwm_mode[i] =
525 ((pwmcfg >> W83627EHF_PWM_MODE_SHIFT[i]) & 1)
526 ? 0 : 1;
527 data->pwm_enable[i] =
528 ((pwmcfg >> W83627EHF_PWM_ENABLE_SHIFT[i])
529 & 3) + 1;
530 data->pwm[i] = w83627ehf_read_value(data,
531 W83627EHF_REG_PWM[i]);
532 data->fan_min_output[i] = w83627ehf_read_value(data,
533 W83627EHF_REG_FAN_MIN_OUTPUT[i]);
534 data->fan_stop_time[i] = w83627ehf_read_value(data,
535 W83627EHF_REG_FAN_STOP_TIME[i]);
536 data->target_temp[i] =
537 w83627ehf_read_value(data,
538 W83627EHF_REG_TARGET[i]) &
539 (data->pwm_mode[i] == 1 ? 0x7f : 0xff);
540 data->tolerance[i] = (tolerance >> (i == 1 ? 4 : 0))
541 & 0x0f;
542 }
543
544 /* Measured temperatures and limits */
545 data->temp1 = w83627ehf_read_value(data,
546 W83627EHF_REG_TEMP1);
547 data->temp1_max = w83627ehf_read_value(data,
548 W83627EHF_REG_TEMP1_OVER);
549 data->temp1_max_hyst = w83627ehf_read_value(data,
550 W83627EHF_REG_TEMP1_HYST);
551 for (i = 0; i < 2; i++) {
552 data->temp[i] = w83627ehf_read_value(data,
553 W83627EHF_REG_TEMP[i]);
554 data->temp_max[i] = w83627ehf_read_value(data,
555 W83627EHF_REG_TEMP_OVER[i]);
556 data->temp_max_hyst[i] = w83627ehf_read_value(data,
557 W83627EHF_REG_TEMP_HYST[i]);
558 }
559
560 data->alarms = w83627ehf_read_value(data,
561 W83627EHF_REG_ALARM1) |
562 (w83627ehf_read_value(data,
563 W83627EHF_REG_ALARM2) << 8) |
564 (w83627ehf_read_value(data,
565 W83627EHF_REG_ALARM3) << 16);
566
567 data->last_updated = jiffies;
568 data->valid = 1;
569 }
570
571 mutex_unlock(&data->update_lock);
572 return data;
573 }
574
575 /*
576 * Sysfs callback functions
577 */
578 #define show_in_reg(reg) \
579 static ssize_t \
580 show_##reg(struct device *dev, struct device_attribute *attr, \
581 char *buf) \
582 { \
583 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
584 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
585 int nr = sensor_attr->index; \
586 return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \
587 }
588 show_in_reg(in)
589 show_in_reg(in_min)
590 show_in_reg(in_max)
591
592 #define store_in_reg(REG, reg) \
593 static ssize_t \
594 store_in_##reg (struct device *dev, struct device_attribute *attr, \
595 const char *buf, size_t count) \
596 { \
597 struct w83627ehf_data *data = dev_get_drvdata(dev); \
598 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
599 int nr = sensor_attr->index; \
600 u32 val = simple_strtoul(buf, NULL, 10); \
601 \
602 mutex_lock(&data->update_lock); \
603 data->in_##reg[nr] = in_to_reg(val, nr); \
604 w83627ehf_write_value(data, W83627EHF_REG_IN_##REG(nr), \
605 data->in_##reg[nr]); \
606 mutex_unlock(&data->update_lock); \
607 return count; \
608 }
609
610 store_in_reg(MIN, min)
611 store_in_reg(MAX, max)
612
613 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
614 {
615 struct w83627ehf_data *data = w83627ehf_update_device(dev);
616 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
617 int nr = sensor_attr->index;
618 return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01);
619 }
620
621 static struct sensor_device_attribute sda_in_input[] = {
622 SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
623 SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
624 SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
625 SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
626 SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
627 SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
628 SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
629 SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
630 SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
631 SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
632 };
633
634 static struct sensor_device_attribute sda_in_alarm[] = {
635 SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
636 SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
637 SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
638 SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
639 SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
640 SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21),
641 SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20),
642 SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16),
643 SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17),
644 SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19),
645 };
646
647 static struct sensor_device_attribute sda_in_min[] = {
648 SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
649 SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
650 SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
651 SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
652 SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
653 SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
654 SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
655 SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
656 SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
657 SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
658 };
659
660 static struct sensor_device_attribute sda_in_max[] = {
661 SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
662 SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
663 SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
664 SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
665 SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
666 SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
667 SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
668 SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
669 SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
670 SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
671 };
672
673 #define show_fan_reg(reg) \
674 static ssize_t \
675 show_##reg(struct device *dev, struct device_attribute *attr, \
676 char *buf) \
677 { \
678 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
679 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
680 int nr = sensor_attr->index; \
681 return sprintf(buf, "%d\n", \
682 fan_from_reg(data->reg[nr], \
683 div_from_reg(data->fan_div[nr]))); \
684 }
685 show_fan_reg(fan);
686 show_fan_reg(fan_min);
687
688 static ssize_t
689 show_fan_div(struct device *dev, struct device_attribute *attr,
690 char *buf)
691 {
692 struct w83627ehf_data *data = w83627ehf_update_device(dev);
693 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
694 int nr = sensor_attr->index;
695 return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr]));
696 }
697
698 static ssize_t
699 store_fan_min(struct device *dev, struct device_attribute *attr,
700 const char *buf, size_t count)
701 {
702 struct w83627ehf_data *data = dev_get_drvdata(dev);
703 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
704 int nr = sensor_attr->index;
705 unsigned int val = simple_strtoul(buf, NULL, 10);
706 unsigned int reg;
707 u8 new_div;
708
709 mutex_lock(&data->update_lock);
710 if (!val) {
711 /* No min limit, alarm disabled */
712 data->fan_min[nr] = 255;
713 new_div = data->fan_div[nr]; /* No change */
714 dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1);
715 } else if ((reg = 1350000U / val) >= 128 * 255) {
716 /* Speed below this value cannot possibly be represented,
717 even with the highest divider (128) */
718 data->fan_min[nr] = 254;
719 new_div = 7; /* 128 == (1 << 7) */
720 dev_warn(dev, "fan%u low limit %u below minimum %u, set to "
721 "minimum\n", nr + 1, val, fan_from_reg(254, 128));
722 } else if (!reg) {
723 /* Speed above this value cannot possibly be represented,
724 even with the lowest divider (1) */
725 data->fan_min[nr] = 1;
726 new_div = 0; /* 1 == (1 << 0) */
727 dev_warn(dev, "fan%u low limit %u above maximum %u, set to "
728 "maximum\n", nr + 1, val, fan_from_reg(1, 1));
729 } else {
730 /* Automatically pick the best divider, i.e. the one such
731 that the min limit will correspond to a register value
732 in the 96..192 range */
733 new_div = 0;
734 while (reg > 192 && new_div < 7) {
735 reg >>= 1;
736 new_div++;
737 }
738 data->fan_min[nr] = reg;
739 }
740
741 /* Write both the fan clock divider (if it changed) and the new
742 fan min (unconditionally) */
743 if (new_div != data->fan_div[nr]) {
744 /* Preserve the fan speed reading */
745 if (data->fan[nr] != 0xff) {
746 if (new_div > data->fan_div[nr])
747 data->fan[nr] >>= new_div - data->fan_div[nr];
748 else if (data->fan[nr] & 0x80)
749 data->fan[nr] = 0xff;
750 else
751 data->fan[nr] <<= data->fan_div[nr] - new_div;
752 }
753
754 dev_dbg(dev, "fan%u clock divider changed from %u to %u\n",
755 nr + 1, div_from_reg(data->fan_div[nr]),
756 div_from_reg(new_div));
757 data->fan_div[nr] = new_div;
758 w83627ehf_write_fan_div(data, nr);
759 /* Give the chip time to sample a new speed value */
760 data->last_updated = jiffies;
761 }
762 w83627ehf_write_value(data, W83627EHF_REG_FAN_MIN[nr],
763 data->fan_min[nr]);
764 mutex_unlock(&data->update_lock);
765
766 return count;
767 }
768
769 static struct sensor_device_attribute sda_fan_input[] = {
770 SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
771 SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
772 SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
773 SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
774 SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
775 };
776
777 static struct sensor_device_attribute sda_fan_alarm[] = {
778 SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
779 SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
780 SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
781 SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
782 SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
783 };
784
785 static struct sensor_device_attribute sda_fan_min[] = {
786 SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
787 store_fan_min, 0),
788 SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
789 store_fan_min, 1),
790 SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
791 store_fan_min, 2),
792 SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
793 store_fan_min, 3),
794 SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min,
795 store_fan_min, 4),
796 };
797
798 static struct sensor_device_attribute sda_fan_div[] = {
799 SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0),
800 SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1),
801 SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2),
802 SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3),
803 SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4),
804 };
805
806 #define show_temp1_reg(reg) \
807 static ssize_t \
808 show_##reg(struct device *dev, struct device_attribute *attr, \
809 char *buf) \
810 { \
811 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
812 return sprintf(buf, "%d\n", temp1_from_reg(data->reg)); \
813 }
814 show_temp1_reg(temp1);
815 show_temp1_reg(temp1_max);
816 show_temp1_reg(temp1_max_hyst);
817
818 #define store_temp1_reg(REG, reg) \
819 static ssize_t \
820 store_temp1_##reg(struct device *dev, struct device_attribute *attr, \
821 const char *buf, size_t count) \
822 { \
823 struct w83627ehf_data *data = dev_get_drvdata(dev); \
824 long val = simple_strtol(buf, NULL, 10); \
825 \
826 mutex_lock(&data->update_lock); \
827 data->temp1_##reg = temp1_to_reg(val, -128000, 127000); \
828 w83627ehf_write_value(data, W83627EHF_REG_TEMP1_##REG, \
829 data->temp1_##reg); \
830 mutex_unlock(&data->update_lock); \
831 return count; \
832 }
833 store_temp1_reg(OVER, max);
834 store_temp1_reg(HYST, max_hyst);
835
836 #define show_temp_reg(reg) \
837 static ssize_t \
838 show_##reg(struct device *dev, struct device_attribute *attr, \
839 char *buf) \
840 { \
841 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
842 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
843 int nr = sensor_attr->index; \
844 return sprintf(buf, "%d\n", \
845 LM75_TEMP_FROM_REG(data->reg[nr])); \
846 }
847 show_temp_reg(temp);
848 show_temp_reg(temp_max);
849 show_temp_reg(temp_max_hyst);
850
851 #define store_temp_reg(REG, reg) \
852 static ssize_t \
853 store_##reg(struct device *dev, struct device_attribute *attr, \
854 const char *buf, size_t count) \
855 { \
856 struct w83627ehf_data *data = dev_get_drvdata(dev); \
857 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
858 int nr = sensor_attr->index; \
859 long val = simple_strtol(buf, NULL, 10); \
860 \
861 mutex_lock(&data->update_lock); \
862 data->reg[nr] = LM75_TEMP_TO_REG(val); \
863 w83627ehf_write_value(data, W83627EHF_REG_TEMP_##REG[nr], \
864 data->reg[nr]); \
865 mutex_unlock(&data->update_lock); \
866 return count; \
867 }
868 store_temp_reg(OVER, temp_max);
869 store_temp_reg(HYST, temp_max_hyst);
870
871 static ssize_t
872 show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
873 {
874 struct w83627ehf_data *data = w83627ehf_update_device(dev);
875 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
876 int nr = sensor_attr->index;
877 return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
878 }
879
880 static struct sensor_device_attribute sda_temp_input[] = {
881 SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
882 SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
883 SENSOR_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 1),
884 };
885
886 static struct sensor_device_attribute sda_temp_max[] = {
887 SENSOR_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp1_max,
888 store_temp1_max, 0),
889 SENSOR_ATTR(temp2_max, S_IRUGO | S_IWUSR, show_temp_max,
890 store_temp_max, 0),
891 SENSOR_ATTR(temp3_max, S_IRUGO | S_IWUSR, show_temp_max,
892 store_temp_max, 1),
893 };
894
895 static struct sensor_device_attribute sda_temp_max_hyst[] = {
896 SENSOR_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp1_max_hyst,
897 store_temp1_max_hyst, 0),
898 SENSOR_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
899 store_temp_max_hyst, 0),
900 SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
901 store_temp_max_hyst, 1),
902 };
903
904 static struct sensor_device_attribute sda_temp_alarm[] = {
905 SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
906 SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
907 SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
908 };
909
910 static struct sensor_device_attribute sda_temp_type[] = {
911 SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
912 SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
913 SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
914 };
915
916 #define show_pwm_reg(reg) \
917 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
918 char *buf) \
919 { \
920 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
921 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
922 int nr = sensor_attr->index; \
923 return sprintf(buf, "%d\n", data->reg[nr]); \
924 }
925
926 show_pwm_reg(pwm_mode)
927 show_pwm_reg(pwm_enable)
928 show_pwm_reg(pwm)
929
930 static ssize_t
931 store_pwm_mode(struct device *dev, struct device_attribute *attr,
932 const char *buf, size_t count)
933 {
934 struct w83627ehf_data *data = dev_get_drvdata(dev);
935 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
936 int nr = sensor_attr->index;
937 u32 val = simple_strtoul(buf, NULL, 10);
938 u16 reg;
939
940 if (val > 1)
941 return -EINVAL;
942 mutex_lock(&data->update_lock);
943 reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
944 data->pwm_mode[nr] = val;
945 reg &= ~(1 << W83627EHF_PWM_MODE_SHIFT[nr]);
946 if (!val)
947 reg |= 1 << W83627EHF_PWM_MODE_SHIFT[nr];
948 w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
949 mutex_unlock(&data->update_lock);
950 return count;
951 }
952
953 static ssize_t
954 store_pwm(struct device *dev, struct device_attribute *attr,
955 const char *buf, size_t count)
956 {
957 struct w83627ehf_data *data = dev_get_drvdata(dev);
958 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
959 int nr = sensor_attr->index;
960 u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255);
961
962 mutex_lock(&data->update_lock);
963 data->pwm[nr] = val;
964 w83627ehf_write_value(data, W83627EHF_REG_PWM[nr], val);
965 mutex_unlock(&data->update_lock);
966 return count;
967 }
968
969 static ssize_t
970 store_pwm_enable(struct device *dev, struct device_attribute *attr,
971 const char *buf, size_t count)
972 {
973 struct w83627ehf_data *data = dev_get_drvdata(dev);
974 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
975 int nr = sensor_attr->index;
976 u32 val = simple_strtoul(buf, NULL, 10);
977 u16 reg;
978
979 if (!val || (val > 2)) /* only modes 1 and 2 are supported */
980 return -EINVAL;
981 mutex_lock(&data->update_lock);
982 reg = w83627ehf_read_value(data, W83627EHF_REG_PWM_ENABLE[nr]);
983 data->pwm_enable[nr] = val;
984 reg &= ~(0x03 << W83627EHF_PWM_ENABLE_SHIFT[nr]);
985 reg |= (val - 1) << W83627EHF_PWM_ENABLE_SHIFT[nr];
986 w83627ehf_write_value(data, W83627EHF_REG_PWM_ENABLE[nr], reg);
987 mutex_unlock(&data->update_lock);
988 return count;
989 }
990
991
992 #define show_tol_temp(reg) \
993 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
994 char *buf) \
995 { \
996 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
997 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
998 int nr = sensor_attr->index; \
999 return sprintf(buf, "%d\n", temp1_from_reg(data->reg[nr])); \
1000 }
1001
1002 show_tol_temp(tolerance)
1003 show_tol_temp(target_temp)
1004
1005 static ssize_t
1006 store_target_temp(struct device *dev, struct device_attribute *attr,
1007 const char *buf, size_t count)
1008 {
1009 struct w83627ehf_data *data = dev_get_drvdata(dev);
1010 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1011 int nr = sensor_attr->index;
1012 u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 127000);
1013
1014 mutex_lock(&data->update_lock);
1015 data->target_temp[nr] = val;
1016 w83627ehf_write_value(data, W83627EHF_REG_TARGET[nr], val);
1017 mutex_unlock(&data->update_lock);
1018 return count;
1019 }
1020
1021 static ssize_t
1022 store_tolerance(struct device *dev, struct device_attribute *attr,
1023 const char *buf, size_t count)
1024 {
1025 struct w83627ehf_data *data = dev_get_drvdata(dev);
1026 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1027 int nr = sensor_attr->index;
1028 u16 reg;
1029 /* Limit the temp to 0C - 15C */
1030 u8 val = temp1_to_reg(simple_strtoul(buf, NULL, 10), 0, 15000);
1031
1032 mutex_lock(&data->update_lock);
1033 reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]);
1034 data->tolerance[nr] = val;
1035 if (nr == 1)
1036 reg = (reg & 0x0f) | (val << 4);
1037 else
1038 reg = (reg & 0xf0) | val;
1039 w83627ehf_write_value(data, W83627EHF_REG_TOLERANCE[nr], reg);
1040 mutex_unlock(&data->update_lock);
1041 return count;
1042 }
1043
1044 static struct sensor_device_attribute sda_pwm[] = {
1045 SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
1046 SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
1047 SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2),
1048 SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3),
1049 };
1050
1051 static struct sensor_device_attribute sda_pwm_mode[] = {
1052 SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1053 store_pwm_mode, 0),
1054 SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1055 store_pwm_mode, 1),
1056 SENSOR_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1057 store_pwm_mode, 2),
1058 SENSOR_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
1059 store_pwm_mode, 3),
1060 };
1061
1062 static struct sensor_device_attribute sda_pwm_enable[] = {
1063 SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1064 store_pwm_enable, 0),
1065 SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1066 store_pwm_enable, 1),
1067 SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1068 store_pwm_enable, 2),
1069 SENSOR_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
1070 store_pwm_enable, 3),
1071 };
1072
1073 static struct sensor_device_attribute sda_target_temp[] = {
1074 SENSOR_ATTR(pwm1_target, S_IWUSR | S_IRUGO, show_target_temp,
1075 store_target_temp, 0),
1076 SENSOR_ATTR(pwm2_target, S_IWUSR | S_IRUGO, show_target_temp,
1077 store_target_temp, 1),
1078 SENSOR_ATTR(pwm3_target, S_IWUSR | S_IRUGO, show_target_temp,
1079 store_target_temp, 2),
1080 SENSOR_ATTR(pwm4_target, S_IWUSR | S_IRUGO, show_target_temp,
1081 store_target_temp, 3),
1082 };
1083
1084 static struct sensor_device_attribute sda_tolerance[] = {
1085 SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1086 store_tolerance, 0),
1087 SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1088 store_tolerance, 1),
1089 SENSOR_ATTR(pwm3_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1090 store_tolerance, 2),
1091 SENSOR_ATTR(pwm4_tolerance, S_IWUSR | S_IRUGO, show_tolerance,
1092 store_tolerance, 3),
1093 };
1094
1095 /* Smart Fan registers */
1096
1097 #define fan_functions(reg, REG) \
1098 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
1099 char *buf) \
1100 { \
1101 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
1102 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1103 int nr = sensor_attr->index; \
1104 return sprintf(buf, "%d\n", data->reg[nr]); \
1105 }\
1106 static ssize_t \
1107 store_##reg(struct device *dev, struct device_attribute *attr, \
1108 const char *buf, size_t count) \
1109 {\
1110 struct w83627ehf_data *data = dev_get_drvdata(dev); \
1111 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1112 int nr = sensor_attr->index; \
1113 u32 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 1, 255); \
1114 mutex_lock(&data->update_lock); \
1115 data->reg[nr] = val; \
1116 w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
1117 mutex_unlock(&data->update_lock); \
1118 return count; \
1119 }
1120
1121 fan_functions(fan_min_output, FAN_MIN_OUTPUT)
1122
1123 #define fan_time_functions(reg, REG) \
1124 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
1125 char *buf) \
1126 { \
1127 struct w83627ehf_data *data = w83627ehf_update_device(dev); \
1128 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1129 int nr = sensor_attr->index; \
1130 return sprintf(buf, "%d\n", \
1131 step_time_from_reg(data->reg[nr], data->pwm_mode[nr])); \
1132 } \
1133 \
1134 static ssize_t \
1135 store_##reg(struct device *dev, struct device_attribute *attr, \
1136 const char *buf, size_t count) \
1137 { \
1138 struct w83627ehf_data *data = dev_get_drvdata(dev); \
1139 struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
1140 int nr = sensor_attr->index; \
1141 u8 val = step_time_to_reg(simple_strtoul(buf, NULL, 10), \
1142 data->pwm_mode[nr]); \
1143 mutex_lock(&data->update_lock); \
1144 data->reg[nr] = val; \
1145 w83627ehf_write_value(data, W83627EHF_REG_##REG[nr], val); \
1146 mutex_unlock(&data->update_lock); \
1147 return count; \
1148 } \
1149
1150 fan_time_functions(fan_stop_time, FAN_STOP_TIME)
1151
1152 static ssize_t show_name(struct device *dev, struct device_attribute *attr,
1153 char *buf)
1154 {
1155 struct w83627ehf_data *data = dev_get_drvdata(dev);
1156
1157 return sprintf(buf, "%s\n", data->name);
1158 }
1159 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1160
1161 static struct sensor_device_attribute sda_sf3_arrays_fan4[] = {
1162 SENSOR_ATTR(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1163 store_fan_stop_time, 3),
1164 SENSOR_ATTR(pwm4_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1165 store_fan_min_output, 3),
1166 };
1167
1168 static struct sensor_device_attribute sda_sf3_arrays[] = {
1169 SENSOR_ATTR(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1170 store_fan_stop_time, 0),
1171 SENSOR_ATTR(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1172 store_fan_stop_time, 1),
1173 SENSOR_ATTR(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_stop_time,
1174 store_fan_stop_time, 2),
1175 SENSOR_ATTR(pwm1_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1176 store_fan_min_output, 0),
1177 SENSOR_ATTR(pwm2_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1178 store_fan_min_output, 1),
1179 SENSOR_ATTR(pwm3_min_output, S_IWUSR | S_IRUGO, show_fan_min_output,
1180 store_fan_min_output, 2),
1181 };
1182
1183 static ssize_t
1184 show_vid(struct device *dev, struct device_attribute *attr, char *buf)
1185 {
1186 struct w83627ehf_data *data = dev_get_drvdata(dev);
1187 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
1188 }
1189 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
1190
1191 /*
1192 * Driver and device management
1193 */
1194
1195 static void w83627ehf_device_remove_files(struct device *dev)
1196 {
1197 /* some entries in the following arrays may not have been used in
1198 * device_create_file(), but device_remove_file() will ignore them */
1199 int i;
1200 struct w83627ehf_data *data = dev_get_drvdata(dev);
1201
1202 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
1203 device_remove_file(dev, &sda_sf3_arrays[i].dev_attr);
1204 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++)
1205 device_remove_file(dev, &sda_sf3_arrays_fan4[i].dev_attr);
1206 for (i = 0; i < data->in_num; i++) {
1207 if ((i == 6) && data->in6_skip)
1208 continue;
1209 device_remove_file(dev, &sda_in_input[i].dev_attr);
1210 device_remove_file(dev, &sda_in_alarm[i].dev_attr);
1211 device_remove_file(dev, &sda_in_min[i].dev_attr);
1212 device_remove_file(dev, &sda_in_max[i].dev_attr);
1213 }
1214 for (i = 0; i < 5; i++) {
1215 device_remove_file(dev, &sda_fan_input[i].dev_attr);
1216 device_remove_file(dev, &sda_fan_alarm[i].dev_attr);
1217 device_remove_file(dev, &sda_fan_div[i].dev_attr);
1218 device_remove_file(dev, &sda_fan_min[i].dev_attr);
1219 }
1220 for (i = 0; i < data->pwm_num; i++) {
1221 device_remove_file(dev, &sda_pwm[i].dev_attr);
1222 device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
1223 device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
1224 device_remove_file(dev, &sda_target_temp[i].dev_attr);
1225 device_remove_file(dev, &sda_tolerance[i].dev_attr);
1226 }
1227 for (i = 0; i < 3; i++) {
1228 if ((i == 2) && data->temp3_disable)
1229 continue;
1230 device_remove_file(dev, &sda_temp_input[i].dev_attr);
1231 device_remove_file(dev, &sda_temp_max[i].dev_attr);
1232 device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
1233 device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
1234 device_remove_file(dev, &sda_temp_type[i].dev_attr);
1235 }
1236
1237 device_remove_file(dev, &dev_attr_name);
1238 device_remove_file(dev, &dev_attr_cpu0_vid);
1239 }
1240
1241 /* Get the monitoring functions started */
1242 static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
1243 {
1244 int i;
1245 u8 tmp, diode;
1246
1247 /* Start monitoring is needed */
1248 tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
1249 if (!(tmp & 0x01))
1250 w83627ehf_write_value(data, W83627EHF_REG_CONFIG,
1251 tmp | 0x01);
1252
1253 /* Enable temp2 and temp3 if needed */
1254 for (i = 0; i < 2; i++) {
1255 tmp = w83627ehf_read_value(data,
1256 W83627EHF_REG_TEMP_CONFIG[i]);
1257 if ((i == 1) && data->temp3_disable)
1258 continue;
1259 if (tmp & 0x01)
1260 w83627ehf_write_value(data,
1261 W83627EHF_REG_TEMP_CONFIG[i],
1262 tmp & 0xfe);
1263 }
1264
1265 /* Enable VBAT monitoring if needed */
1266 tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
1267 if (!(tmp & 0x01))
1268 w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
1269
1270 /* Get thermal sensor types */
1271 diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
1272 for (i = 0; i < 3; i++) {
1273 if ((tmp & (0x02 << i)))
1274 data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
1275 else
1276 data->temp_type[i] = 4; /* thermistor */
1277 }
1278 }
1279
1280 static int __devinit w83627ehf_probe(struct platform_device *pdev)
1281 {
1282 struct device *dev = &pdev->dev;
1283 struct w83627ehf_sio_data *sio_data = dev->platform_data;
1284 struct w83627ehf_data *data;
1285 struct resource *res;
1286 u8 fan4pin, fan5pin, en_vrm10;
1287 int i, err = 0;
1288
1289 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1290 if (!request_region(res->start, IOREGION_LENGTH, DRVNAME)) {
1291 err = -EBUSY;
1292 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
1293 (unsigned long)res->start,
1294 (unsigned long)res->start + IOREGION_LENGTH - 1);
1295 goto exit;
1296 }
1297
1298 if (!(data = kzalloc(sizeof(struct w83627ehf_data), GFP_KERNEL))) {
1299 err = -ENOMEM;
1300 goto exit_release;
1301 }
1302
1303 data->addr = res->start;
1304 mutex_init(&data->lock);
1305 mutex_init(&data->update_lock);
1306 data->name = w83627ehf_device_names[sio_data->kind];
1307 platform_set_drvdata(pdev, data);
1308
1309 /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
1310 data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
1311 /* 667HG has 3 pwms */
1312 data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;
1313
1314 /* Check temp3 configuration bit for 667HG */
1315 if (sio_data->kind == w83667hg) {
1316 data->temp3_disable = w83627ehf_read_value(data,
1317 W83627EHF_REG_TEMP_CONFIG[1]) & 0x01;
1318 data->in6_skip = !data->temp3_disable;
1319 }
1320
1321 /* Initialize the chip */
1322 w83627ehf_init_device(data);
1323
1324 data->vrm = vid_which_vrm();
1325 superio_enter(sio_data->sioreg);
1326 /* Read VID value */
1327 if (sio_data->kind == w83667hg) {
1328 /* W83667HG has different pins for VID input and output, so
1329 we can get the VID input values directly at logical device D
1330 0xe3. */
1331 superio_select(sio_data->sioreg, W83667HG_LD_VID);
1332 data->vid = superio_inb(sio_data->sioreg, 0xe3);
1333 err = device_create_file(dev, &dev_attr_cpu0_vid);
1334 if (err)
1335 goto exit_release;
1336 } else {
1337 superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
1338 if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
1339 /* Set VID input sensibility if needed. In theory the
1340 BIOS should have set it, but in practice it's not
1341 always the case. We only do it for the W83627EHF/EHG
1342 because the W83627DHG is more complex in this
1343 respect. */
1344 if (sio_data->kind == w83627ehf) {
1345 en_vrm10 = superio_inb(sio_data->sioreg,
1346 SIO_REG_EN_VRM10);
1347 if ((en_vrm10 & 0x08) && data->vrm == 90) {
1348 dev_warn(dev, "Setting VID input "
1349 "voltage to TTL\n");
1350 superio_outb(sio_data->sioreg,
1351 SIO_REG_EN_VRM10,
1352 en_vrm10 & ~0x08);
1353 } else if (!(en_vrm10 & 0x08)
1354 && data->vrm == 100) {
1355 dev_warn(dev, "Setting VID input "
1356 "voltage to VRM10\n");
1357 superio_outb(sio_data->sioreg,
1358 SIO_REG_EN_VRM10,
1359 en_vrm10 | 0x08);
1360 }
1361 }
1362
1363 data->vid = superio_inb(sio_data->sioreg,
1364 SIO_REG_VID_DATA);
1365 if (sio_data->kind == w83627ehf) /* 6 VID pins only */
1366 data->vid &= 0x3f;
1367
1368 err = device_create_file(dev, &dev_attr_cpu0_vid);
1369 if (err)
1370 goto exit_release;
1371 } else {
1372 dev_info(dev, "VID pins in output mode, CPU VID not "
1373 "available\n");
1374 }
1375 }
1376
1377 /* fan4 and fan5 share some pins with the GPIO and serial flash */
1378 if (sio_data->kind == w83667hg) {
1379 fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20;
1380 fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40;
1381 } else {
1382 fan5pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x02);
1383 fan4pin = !(superio_inb(sio_data->sioreg, 0x29) & 0x06);
1384 }
1385 superio_exit(sio_data->sioreg);
1386
1387 /* It looks like fan4 and fan5 pins can be alternatively used
1388 as fan on/off switches, but fan5 control is write only :/
1389 We assume that if the serial interface is disabled, designers
1390 connected fan5 as input unless they are emitting log 1, which
1391 is not the default. */
1392
1393 data->has_fan = 0x07; /* fan1, fan2 and fan3 */
1394 i = w83627ehf_read_value(data, W83627EHF_REG_FANDIV1);
1395 if ((i & (1 << 2)) && fan4pin)
1396 data->has_fan |= (1 << 3);
1397 if (!(i & (1 << 1)) && fan5pin)
1398 data->has_fan |= (1 << 4);
1399
1400 /* Read fan clock dividers immediately */
1401 w83627ehf_update_fan_div(data);
1402
1403 /* Register sysfs hooks */
1404 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays); i++)
1405 if ((err = device_create_file(dev,
1406 &sda_sf3_arrays[i].dev_attr)))
1407 goto exit_remove;
1408
1409 /* if fan4 is enabled create the sf3 files for it */
1410 if ((data->has_fan & (1 << 3)) && data->pwm_num >= 4)
1411 for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) {
1412 if ((err = device_create_file(dev,
1413 &sda_sf3_arrays_fan4[i].dev_attr)))
1414 goto exit_remove;
1415 }
1416
1417 for (i = 0; i < data->in_num; i++) {
1418 if ((i == 6) && data->in6_skip)
1419 continue;
1420 if ((err = device_create_file(dev, &sda_in_input[i].dev_attr))
1421 || (err = device_create_file(dev,
1422 &sda_in_alarm[i].dev_attr))
1423 || (err = device_create_file(dev,
1424 &sda_in_min[i].dev_attr))
1425 || (err = device_create_file(dev,
1426 &sda_in_max[i].dev_attr)))
1427 goto exit_remove;
1428 }
1429
1430 for (i = 0; i < 5; i++) {
1431 if (data->has_fan & (1 << i)) {
1432 if ((err = device_create_file(dev,
1433 &sda_fan_input[i].dev_attr))
1434 || (err = device_create_file(dev,
1435 &sda_fan_alarm[i].dev_attr))
1436 || (err = device_create_file(dev,
1437 &sda_fan_div[i].dev_attr))
1438 || (err = device_create_file(dev,
1439 &sda_fan_min[i].dev_attr)))
1440 goto exit_remove;
1441 if (i < data->pwm_num &&
1442 ((err = device_create_file(dev,
1443 &sda_pwm[i].dev_attr))
1444 || (err = device_create_file(dev,
1445 &sda_pwm_mode[i].dev_attr))
1446 || (err = device_create_file(dev,
1447 &sda_pwm_enable[i].dev_attr))
1448 || (err = device_create_file(dev,
1449 &sda_target_temp[i].dev_attr))
1450 || (err = device_create_file(dev,
1451 &sda_tolerance[i].dev_attr))))
1452 goto exit_remove;
1453 }
1454 }
1455
1456 for (i = 0; i < 3; i++) {
1457 if ((i == 2) && data->temp3_disable)
1458 continue;
1459 if ((err = device_create_file(dev,
1460 &sda_temp_input[i].dev_attr))
1461 || (err = device_create_file(dev,
1462 &sda_temp_max[i].dev_attr))
1463 || (err = device_create_file(dev,
1464 &sda_temp_max_hyst[i].dev_attr))
1465 || (err = device_create_file(dev,
1466 &sda_temp_alarm[i].dev_attr))
1467 || (err = device_create_file(dev,
1468 &sda_temp_type[i].dev_attr)))
1469 goto exit_remove;
1470 }
1471
1472 err = device_create_file(dev, &dev_attr_name);
1473 if (err)
1474 goto exit_remove;
1475
1476 data->hwmon_dev = hwmon_device_register(dev);
1477 if (IS_ERR(data->hwmon_dev)) {
1478 err = PTR_ERR(data->hwmon_dev);
1479 goto exit_remove;
1480 }
1481
1482 return 0;
1483
1484 exit_remove:
1485 w83627ehf_device_remove_files(dev);
1486 kfree(data);
1487 platform_set_drvdata(pdev, NULL);
1488 exit_release:
1489 release_region(res->start, IOREGION_LENGTH);
1490 exit:
1491 return err;
1492 }
1493
1494 static int __devexit w83627ehf_remove(struct platform_device *pdev)
1495 {
1496 struct w83627ehf_data *data = platform_get_drvdata(pdev);
1497
1498 hwmon_device_unregister(data->hwmon_dev);
1499 w83627ehf_device_remove_files(&pdev->dev);
1500 release_region(data->addr, IOREGION_LENGTH);
1501 platform_set_drvdata(pdev, NULL);
1502 kfree(data);
1503
1504 return 0;
1505 }
1506
1507 static struct platform_driver w83627ehf_driver = {
1508 .driver = {
1509 .owner = THIS_MODULE,
1510 .name = DRVNAME,
1511 },
1512 .probe = w83627ehf_probe,
1513 .remove = __devexit_p(w83627ehf_remove),
1514 };
1515
1516 /* w83627ehf_find() looks for a '627 in the Super-I/O config space */
1517 static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
1518 struct w83627ehf_sio_data *sio_data)
1519 {
1520 static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
1521 static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
1522 static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
1523 static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P";
1524 static const char __initdata sio_name_W83667HG[] = "W83667HG";
1525
1526 u16 val;
1527 const char *sio_name;
1528
1529 superio_enter(sioaddr);
1530
1531 if (force_id)
1532 val = force_id;
1533 else
1534 val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
1535 | superio_inb(sioaddr, SIO_REG_DEVID + 1);
1536 switch (val & SIO_ID_MASK) {
1537 case SIO_W83627EHF_ID:
1538 sio_data->kind = w83627ehf;
1539 sio_name = sio_name_W83627EHF;
1540 break;
1541 case SIO_W83627EHG_ID:
1542 sio_data->kind = w83627ehf;
1543 sio_name = sio_name_W83627EHG;
1544 break;
1545 case SIO_W83627DHG_ID:
1546 sio_data->kind = w83627dhg;
1547 sio_name = sio_name_W83627DHG;
1548 break;
1549 case SIO_W83627DHG_P_ID:
1550 sio_data->kind = w83627dhg_p;
1551 sio_name = sio_name_W83627DHG_P;
1552 break;
1553 case SIO_W83667HG_ID:
1554 sio_data->kind = w83667hg;
1555 sio_name = sio_name_W83667HG;
1556 break;
1557 default:
1558 if (val != 0xffff)
1559 pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",
1560 val);
1561 superio_exit(sioaddr);
1562 return -ENODEV;
1563 }
1564
1565 /* We have a known chip, find the HWM I/O address */
1566 superio_select(sioaddr, W83627EHF_LD_HWM);
1567 val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8)
1568 | superio_inb(sioaddr, SIO_REG_ADDR + 1);
1569 *addr = val & IOREGION_ALIGNMENT;
1570 if (*addr == 0) {
1571 printk(KERN_ERR DRVNAME ": Refusing to enable a Super-I/O "
1572 "device with a base I/O port 0.\n");
1573 superio_exit(sioaddr);
1574 return -ENODEV;
1575 }
1576
1577 /* Activate logical device if needed */
1578 val = superio_inb(sioaddr, SIO_REG_ENABLE);
1579 if (!(val & 0x01)) {
1580 printk(KERN_WARNING DRVNAME ": Forcibly enabling Super-I/O. "
1581 "Sensor is probably unusable.\n");
1582 superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01);
1583 }
1584
1585 superio_exit(sioaddr);
1586 pr_info(DRVNAME ": Found %s chip at %#x\n", sio_name, *addr);
1587 sio_data->sioreg = sioaddr;
1588
1589 return 0;
1590 }
1591
1592 /* when Super-I/O functions move to a separate file, the Super-I/O
1593 * bus will manage the lifetime of the device and this module will only keep
1594 * track of the w83627ehf driver. But since we platform_device_alloc(), we
1595 * must keep track of the device */
1596 static struct platform_device *pdev;
1597
1598 static int __init sensors_w83627ehf_init(void)
1599 {
1600 int err;
1601 unsigned short address;
1602 struct resource res;
1603 struct w83627ehf_sio_data sio_data;
1604
1605 /* initialize sio_data->kind and sio_data->sioreg.
1606 *
1607 * when Super-I/O functions move to a separate file, the Super-I/O
1608 * driver will probe 0x2e and 0x4e and auto-detect the presence of a
1609 * w83627ehf hardware monitor, and call probe() */
1610 if (w83627ehf_find(0x2e, &address, &sio_data) &&
1611 w83627ehf_find(0x4e, &address, &sio_data))
1612 return -ENODEV;
1613
1614 err = platform_driver_register(&w83627ehf_driver);
1615 if (err)
1616 goto exit;
1617
1618 if (!(pdev = platform_device_alloc(DRVNAME, address))) {
1619 err = -ENOMEM;
1620 printk(KERN_ERR DRVNAME ": Device allocation failed\n");
1621 goto exit_unregister;
1622 }
1623
1624 err = platform_device_add_data(pdev, &sio_data,
1625 sizeof(struct w83627ehf_sio_data));
1626 if (err) {
1627 printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
1628 goto exit_device_put;
1629 }
1630
1631 memset(&res, 0, sizeof(res));
1632 res.name = DRVNAME;
1633 res.start = address + IOREGION_OFFSET;
1634 res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
1635 res.flags = IORESOURCE_IO;
1636
1637 err = acpi_check_resource_conflict(&res);
1638 if (err)
1639 goto exit_device_put;
1640
1641 err = platform_device_add_resources(pdev, &res, 1);
1642 if (err) {
1643 printk(KERN_ERR DRVNAME ": Device resource addition failed "
1644 "(%d)\n", err);
1645 goto exit_device_put;
1646 }
1647
1648 /* platform_device_add calls probe() */
1649 err = platform_device_add(pdev);
1650 if (err) {
1651 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
1652 err);
1653 goto exit_device_put;
1654 }
1655
1656 return 0;
1657
1658 exit_device_put:
1659 platform_device_put(pdev);
1660 exit_unregister:
1661 platform_driver_unregister(&w83627ehf_driver);
1662 exit:
1663 return err;
1664 }
1665
1666 static void __exit sensors_w83627ehf_exit(void)
1667 {
1668 platform_device_unregister(pdev);
1669 platform_driver_unregister(&w83627ehf_driver);
1670 }
1671
1672 MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
1673 MODULE_DESCRIPTION("W83627EHF driver");
1674 MODULE_LICENSE("GPL");
1675
1676 module_init(sensors_w83627ehf_init);
1677 module_exit(sensors_w83627ehf_exit);
Support for the Chinese Samsung S3C2440 based development boards