[PATCH] hwmon: Semaphore to mutex conversions
[linux-2.6.git] / drivers / hwmon / w83627hf.c
1 /*
2     w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
3                 monitoring
4     Copyright (c) 1998 - 2003  Frodo Looijaard <frodol@dds.nl>,
5     Philip Edelbrock <phil@netroedge.com>,
6     and Mark Studebaker <mdsxyz123@yahoo.com>
7     Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
8
9     This program is free software; you can redistribute it and/or modify
10     it under the terms of the GNU General Public License as published by
11     the Free Software Foundation; either version 2 of the License, or
12     (at your option) any later version.
13
14     This program is distributed in the hope that it will be useful,
15     but WITHOUT ANY WARRANTY; without even the implied warranty of
16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17     GNU General Public License for more details.
18
19     You should have received a copy of the GNU General Public License
20     along with this program; if not, write to the Free Software
21     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
24 /*
25     Supports following chips:
26
27     Chip        #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
28     w83627hf    9       3       2       3       0x20    0x5ca3  no      yes(LPC)
29     w83627thf   7       3       3       3       0x90    0x5ca3  no      yes(LPC)
30     w83637hf    7       3       3       3       0x80    0x5ca3  no      yes(LPC)
31     w83697hf    8       2       2       2       0x60    0x5ca3  no      yes(LPC)
32
33     For other winbond chips, and for i2c support in the above chips,
34     use w83781d.c.
35
36     Note: automatic ("cruise") fan control for 697, 637 & 627thf not
37     supported yet.
38 */
39
40 #include <linux/module.h>
41 #include <linux/init.h>
42 #include <linux/slab.h>
43 #include <linux/jiffies.h>
44 #include <linux/i2c.h>
45 #include <linux/i2c-isa.h>
46 #include <linux/hwmon.h>
47 #include <linux/hwmon-vid.h>
48 #include <linux/err.h>
49 #include <linux/mutex.h>
50 #include <asm/io.h>
51 #include "lm75.h"
52
53 static u16 force_addr;
54 module_param(force_addr, ushort, 0);
55 MODULE_PARM_DESC(force_addr,
56                  "Initialize the base address of the sensors");
57 static u8 force_i2c = 0x1f;
58 module_param(force_i2c, byte, 0);
59 MODULE_PARM_DESC(force_i2c,
60                  "Initialize the i2c address of the sensors");
61
62 /* The actual ISA address is read from Super-I/O configuration space */
63 static unsigned short address;
64
65 /* Insmod parameters */
66 enum chips { any_chip, w83627hf, w83627thf, w83697hf, w83637hf };
67
68 static int reset;
69 module_param(reset, bool, 0);
70 MODULE_PARM_DESC(reset, "Set to one to reset chip on load");
71
72 static int init = 1;
73 module_param(init, bool, 0);
74 MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
75
76 /* modified from kernel/include/traps.c */
77 static int REG;         /* The register to read/write */
78 #define DEV     0x07    /* Register: Logical device select */
79 static int VAL;         /* The value to read/write */
80
81 /* logical device numbers for superio_select (below) */
82 #define W83627HF_LD_FDC         0x00
83 #define W83627HF_LD_PRT         0x01
84 #define W83627HF_LD_UART1       0x02
85 #define W83627HF_LD_UART2       0x03
86 #define W83627HF_LD_KBC         0x05
87 #define W83627HF_LD_CIR         0x06 /* w83627hf only */
88 #define W83627HF_LD_GAME        0x07
89 #define W83627HF_LD_MIDI        0x07
90 #define W83627HF_LD_GPIO1       0x07
91 #define W83627HF_LD_GPIO5       0x07 /* w83627thf only */
92 #define W83627HF_LD_GPIO2       0x08
93 #define W83627HF_LD_GPIO3       0x09
94 #define W83627HF_LD_GPIO4       0x09 /* w83627thf only */
95 #define W83627HF_LD_ACPI        0x0a
96 #define W83627HF_LD_HWM         0x0b
97
98 #define DEVID   0x20    /* Register: Device ID */
99
100 #define W83627THF_GPIO5_EN      0x30 /* w83627thf only */
101 #define W83627THF_GPIO5_IOSR    0xf3 /* w83627thf only */
102 #define W83627THF_GPIO5_DR      0xf4 /* w83627thf only */
103
104 static inline void
105 superio_outb(int reg, int val)
106 {
107         outb(reg, REG);
108         outb(val, VAL);
109 }
110
111 static inline int
112 superio_inb(int reg)
113 {
114         outb(reg, REG);
115         return inb(VAL);
116 }
117
118 static inline void
119 superio_select(int ld)
120 {
121         outb(DEV, REG);
122         outb(ld, VAL);
123 }
124
125 static inline void
126 superio_enter(void)
127 {
128         outb(0x87, REG);
129         outb(0x87, REG);
130 }
131
132 static inline void
133 superio_exit(void)
134 {
135         outb(0xAA, REG);
136 }
137
138 #define W627_DEVID 0x52
139 #define W627THF_DEVID 0x82
140 #define W697_DEVID 0x60
141 #define W637_DEVID 0x70
142 #define WINB_ACT_REG 0x30
143 #define WINB_BASE_REG 0x60
144 /* Constants specified below */
145
146 /* Alignment of the base address */
147 #define WINB_ALIGNMENT          ~7
148
149 /* Offset & size of I/O region we are interested in */
150 #define WINB_REGION_OFFSET      5
151 #define WINB_REGION_SIZE        2
152
153 /* Where are the sensors address/data registers relative to the base address */
154 #define W83781D_ADDR_REG_OFFSET 5
155 #define W83781D_DATA_REG_OFFSET 6
156
157 /* The W83781D registers */
158 /* The W83782D registers for nr=7,8 are in bank 5 */
159 #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
160                                            (0x554 + (((nr) - 7) * 2)))
161 #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
162                                            (0x555 + (((nr) - 7) * 2)))
163 #define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
164                                            (0x550 + (nr) - 7))
165
166 #define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
167 #define W83781D_REG_FAN(nr) (0x27 + (nr))
168
169 #define W83781D_REG_TEMP2_CONFIG 0x152
170 #define W83781D_REG_TEMP3_CONFIG 0x252
171 #define W83781D_REG_TEMP(nr)            ((nr == 3) ? (0x0250) : \
172                                         ((nr == 2) ? (0x0150) : \
173                                                      (0x27)))
174 #define W83781D_REG_TEMP_HYST(nr)       ((nr == 3) ? (0x253) : \
175                                         ((nr == 2) ? (0x153) : \
176                                                      (0x3A)))
177 #define W83781D_REG_TEMP_OVER(nr)       ((nr == 3) ? (0x255) : \
178                                         ((nr == 2) ? (0x155) : \
179                                                      (0x39)))
180
181 #define W83781D_REG_BANK 0x4E
182
183 #define W83781D_REG_CONFIG 0x40
184 #define W83781D_REG_ALARM1 0x459
185 #define W83781D_REG_ALARM2 0x45A
186 #define W83781D_REG_ALARM3 0x45B
187
188 #define W83781D_REG_BEEP_CONFIG 0x4D
189 #define W83781D_REG_BEEP_INTS1 0x56
190 #define W83781D_REG_BEEP_INTS2 0x57
191 #define W83781D_REG_BEEP_INTS3 0x453
192
193 #define W83781D_REG_VID_FANDIV 0x47
194
195 #define W83781D_REG_CHIPID 0x49
196 #define W83781D_REG_WCHIPID 0x58
197 #define W83781D_REG_CHIPMAN 0x4F
198 #define W83781D_REG_PIN 0x4B
199
200 #define W83781D_REG_VBAT 0x5D
201
202 #define W83627HF_REG_PWM1 0x5A
203 #define W83627HF_REG_PWM2 0x5B
204
205 #define W83627THF_REG_PWM1              0x01    /* 697HF and 637HF too */
206 #define W83627THF_REG_PWM2              0x03    /* 697HF and 637HF too */
207 #define W83627THF_REG_PWM3              0x11    /* 637HF too */
208
209 #define W83627THF_REG_VRM_OVT_CFG       0x18    /* 637HF too */
210
211 static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
212 static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
213                              W83627THF_REG_PWM3 };
214 #define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
215                                      regpwm_627hf[(nr) - 1] : regpwm[(nr) - 1])
216
217 #define W83781D_REG_I2C_ADDR 0x48
218 #define W83781D_REG_I2C_SUBADDR 0x4A
219
220 /* Sensor selection */
221 #define W83781D_REG_SCFG1 0x5D
222 static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
223 #define W83781D_REG_SCFG2 0x59
224 static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
225 #define W83781D_DEFAULT_BETA 3435
226
227 /* Conversions. Limit checking is only done on the TO_REG
228    variants. Note that you should be a bit careful with which arguments
229    these macros are called: arguments may be evaluated more than once.
230    Fixing this is just not worth it. */
231 #define IN_TO_REG(val)  (SENSORS_LIMIT((((val) + 8)/16),0,255))
232 #define IN_FROM_REG(val) ((val) * 16)
233
234 static inline u8 FAN_TO_REG(long rpm, int div)
235 {
236         if (rpm == 0)
237                 return 255;
238         rpm = SENSORS_LIMIT(rpm, 1, 1000000);
239         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
240                              254);
241 }
242
243 #define TEMP_MIN (-128000)
244 #define TEMP_MAX ( 127000)
245
246 /* TEMP: 0.001C/bit (-128C to +127C)
247    REG: 1C/bit, two's complement */
248 static u8 TEMP_TO_REG(int temp)
249 {
250         int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
251         ntemp += (ntemp<0 ? -500 : 500);
252         return (u8)(ntemp / 1000);
253 }
254
255 static int TEMP_FROM_REG(u8 reg)
256 {
257         return (s8)reg * 1000;
258 }
259
260 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
261
262 #define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
263
264 #define BEEP_MASK_FROM_REG(val)          (val)
265 #define BEEP_MASK_TO_REG(val)           ((val) & 0xffffff)
266 #define BEEP_ENABLE_TO_REG(val)         ((val)?1:0)
267 #define BEEP_ENABLE_FROM_REG(val)       ((val)?1:0)
268
269 #define DIV_FROM_REG(val) (1 << (val))
270
271 static inline u8 DIV_TO_REG(long val)
272 {
273         int i;
274         val = SENSORS_LIMIT(val, 1, 128) >> 1;
275         for (i = 0; i < 7; i++) {
276                 if (val == 0)
277                         break;
278                 val >>= 1;
279         }
280         return ((u8) i);
281 }
282
283 /* For each registered chip, we need to keep some data in memory. That
284    data is pointed to by w83627hf_list[NR]->data. The structure itself is
285    dynamically allocated, at the same time when a new client is allocated. */
286 struct w83627hf_data {
287         struct i2c_client client;
288         struct class_device *class_dev;
289         struct mutex lock;
290         enum chips type;
291
292         struct mutex update_lock;
293         char valid;             /* !=0 if following fields are valid */
294         unsigned long last_updated;     /* In jiffies */
295
296         struct i2c_client *lm75;        /* for secondary I2C addresses */
297         /* pointer to array of 2 subclients */
298
299         u8 in[9];               /* Register value */
300         u8 in_max[9];           /* Register value */
301         u8 in_min[9];           /* Register value */
302         u8 fan[3];              /* Register value */
303         u8 fan_min[3];          /* Register value */
304         u8 temp;
305         u8 temp_max;            /* Register value */
306         u8 temp_max_hyst;       /* Register value */
307         u16 temp_add[2];        /* Register value */
308         u16 temp_max_add[2];    /* Register value */
309         u16 temp_max_hyst_add[2]; /* Register value */
310         u8 fan_div[3];          /* Register encoding, shifted right */
311         u8 vid;                 /* Register encoding, combined */
312         u32 alarms;             /* Register encoding, combined */
313         u32 beep_mask;          /* Register encoding, combined */
314         u8 beep_enable;         /* Boolean */
315         u8 pwm[3];              /* Register value */
316         u16 sens[3];            /* 782D/783S only.
317                                    1 = pentium diode; 2 = 3904 diode;
318                                    3000-5000 = thermistor beta.
319                                    Default = 3435.
320                                    Other Betas unimplemented */
321         u8 vrm;
322         u8 vrm_ovt;             /* Register value, 627thf & 637hf only */
323 };
324
325
326 static int w83627hf_detect(struct i2c_adapter *adapter);
327 static int w83627hf_detach_client(struct i2c_client *client);
328
329 static int w83627hf_read_value(struct i2c_client *client, u16 register);
330 static int w83627hf_write_value(struct i2c_client *client, u16 register,
331                                u16 value);
332 static struct w83627hf_data *w83627hf_update_device(struct device *dev);
333 static void w83627hf_init_client(struct i2c_client *client);
334
335 static struct i2c_driver w83627hf_driver = {
336         .driver = {
337                 .name   = "w83627hf",
338         },
339         .attach_adapter = w83627hf_detect,
340         .detach_client  = w83627hf_detach_client,
341 };
342
343 /* following are the sysfs callback functions */
344 #define show_in_reg(reg) \
345 static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
346 { \
347         struct w83627hf_data *data = w83627hf_update_device(dev); \
348         return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr])); \
349 }
350 show_in_reg(in)
351 show_in_reg(in_min)
352 show_in_reg(in_max)
353
354 #define store_in_reg(REG, reg) \
355 static ssize_t \
356 store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
357 { \
358         struct i2c_client *client = to_i2c_client(dev); \
359         struct w83627hf_data *data = i2c_get_clientdata(client); \
360         u32 val; \
361          \
362         val = simple_strtoul(buf, NULL, 10); \
363          \
364         mutex_lock(&data->update_lock); \
365         data->in_##reg[nr] = IN_TO_REG(val); \
366         w83627hf_write_value(client, W83781D_REG_IN_##REG(nr), \
367                             data->in_##reg[nr]); \
368          \
369         mutex_unlock(&data->update_lock); \
370         return count; \
371 }
372 store_in_reg(MIN, min)
373 store_in_reg(MAX, max)
374
375 #define sysfs_in_offset(offset) \
376 static ssize_t \
377 show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
378 { \
379         return show_in(dev, buf, offset); \
380 } \
381 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
382
383 #define sysfs_in_reg_offset(reg, offset) \
384 static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
385 { \
386         return show_in_##reg (dev, buf, offset); \
387 } \
388 static ssize_t \
389 store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, \
390                             const char *buf, size_t count) \
391 { \
392         return store_in_##reg (dev, buf, count, offset); \
393 } \
394 static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, \
395                   show_regs_in_##reg##offset, store_regs_in_##reg##offset);
396
397 #define sysfs_in_offsets(offset) \
398 sysfs_in_offset(offset) \
399 sysfs_in_reg_offset(min, offset) \
400 sysfs_in_reg_offset(max, offset)
401
402 sysfs_in_offsets(1);
403 sysfs_in_offsets(2);
404 sysfs_in_offsets(3);
405 sysfs_in_offsets(4);
406 sysfs_in_offsets(5);
407 sysfs_in_offsets(6);
408 sysfs_in_offsets(7);
409 sysfs_in_offsets(8);
410
411 /* use a different set of functions for in0 */
412 static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
413 {
414         long in0;
415
416         if ((data->vrm_ovt & 0x01) &&
417                 (w83627thf == data->type || w83637hf == data->type))
418
419                 /* use VRM9 calculation */
420                 in0 = (long)((reg * 488 + 70000 + 50) / 100);
421         else
422                 /* use VRM8 (standard) calculation */
423                 in0 = (long)IN_FROM_REG(reg);
424
425         return sprintf(buf,"%ld\n", in0);
426 }
427
428 static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
429 {
430         struct w83627hf_data *data = w83627hf_update_device(dev);
431         return show_in_0(data, buf, data->in[0]);
432 }
433
434 static ssize_t show_regs_in_min0(struct device *dev, struct device_attribute *attr, char *buf)
435 {
436         struct w83627hf_data *data = w83627hf_update_device(dev);
437         return show_in_0(data, buf, data->in_min[0]);
438 }
439
440 static ssize_t show_regs_in_max0(struct device *dev, struct device_attribute *attr, char *buf)
441 {
442         struct w83627hf_data *data = w83627hf_update_device(dev);
443         return show_in_0(data, buf, data->in_max[0]);
444 }
445
446 static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
447         const char *buf, size_t count)
448 {
449         struct i2c_client *client = to_i2c_client(dev);
450         struct w83627hf_data *data = i2c_get_clientdata(client);
451         u32 val;
452
453         val = simple_strtoul(buf, NULL, 10);
454
455         mutex_lock(&data->update_lock);
456         
457         if ((data->vrm_ovt & 0x01) &&
458                 (w83627thf == data->type || w83637hf == data->type))
459
460                 /* use VRM9 calculation */
461                 data->in_min[0] =
462                         SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
463                                         255);
464         else
465                 /* use VRM8 (standard) calculation */
466                 data->in_min[0] = IN_TO_REG(val);
467
468         w83627hf_write_value(client, W83781D_REG_IN_MIN(0), data->in_min[0]);
469         mutex_unlock(&data->update_lock);
470         return count;
471 }
472
473 static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
474         const char *buf, size_t count)
475 {
476         struct i2c_client *client = to_i2c_client(dev);
477         struct w83627hf_data *data = i2c_get_clientdata(client);
478         u32 val;
479
480         val = simple_strtoul(buf, NULL, 10);
481
482         mutex_lock(&data->update_lock);
483
484         if ((data->vrm_ovt & 0x01) &&
485                 (w83627thf == data->type || w83637hf == data->type))
486                 
487                 /* use VRM9 calculation */
488                 data->in_max[0] =
489                         SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
490                                         255);
491         else
492                 /* use VRM8 (standard) calculation */
493                 data->in_max[0] = IN_TO_REG(val);
494
495         w83627hf_write_value(client, W83781D_REG_IN_MAX(0), data->in_max[0]);
496         mutex_unlock(&data->update_lock);
497         return count;
498 }
499
500 static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
501 static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
502         show_regs_in_min0, store_regs_in_min0);
503 static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
504         show_regs_in_max0, store_regs_in_max0);
505
506 #define device_create_file_in(client, offset) \
507 do { \
508 device_create_file(&client->dev, &dev_attr_in##offset##_input); \
509 device_create_file(&client->dev, &dev_attr_in##offset##_min); \
510 device_create_file(&client->dev, &dev_attr_in##offset##_max); \
511 } while (0)
512
513 #define show_fan_reg(reg) \
514 static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
515 { \
516         struct w83627hf_data *data = w83627hf_update_device(dev); \
517         return sprintf(buf,"%ld\n", \
518                 FAN_FROM_REG(data->reg[nr-1], \
519                             (long)DIV_FROM_REG(data->fan_div[nr-1]))); \
520 }
521 show_fan_reg(fan);
522 show_fan_reg(fan_min);
523
524 static ssize_t
525 store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
526 {
527         struct i2c_client *client = to_i2c_client(dev);
528         struct w83627hf_data *data = i2c_get_clientdata(client);
529         u32 val;
530
531         val = simple_strtoul(buf, NULL, 10);
532
533         mutex_lock(&data->update_lock);
534         data->fan_min[nr - 1] =
535             FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
536         w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr),
537                             data->fan_min[nr - 1]);
538
539         mutex_unlock(&data->update_lock);
540         return count;
541 }
542
543 #define sysfs_fan_offset(offset) \
544 static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
545 { \
546         return show_fan(dev, buf, offset); \
547 } \
548 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
549
550 #define sysfs_fan_min_offset(offset) \
551 static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \
552 { \
553         return show_fan_min(dev, buf, offset); \
554 } \
555 static ssize_t \
556 store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
557 { \
558         return store_fan_min(dev, buf, count, offset); \
559 } \
560 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
561                   show_regs_fan_min##offset, store_regs_fan_min##offset);
562
563 sysfs_fan_offset(1);
564 sysfs_fan_min_offset(1);
565 sysfs_fan_offset(2);
566 sysfs_fan_min_offset(2);
567 sysfs_fan_offset(3);
568 sysfs_fan_min_offset(3);
569
570 #define device_create_file_fan(client, offset) \
571 do { \
572 device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
573 device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
574 } while (0)
575
576 #define show_temp_reg(reg) \
577 static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
578 { \
579         struct w83627hf_data *data = w83627hf_update_device(dev); \
580         if (nr >= 2) {  /* TEMP2 and TEMP3 */ \
581                 return sprintf(buf,"%ld\n", \
582                         (long)LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
583         } else {        /* TEMP1 */ \
584                 return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
585         } \
586 }
587 show_temp_reg(temp);
588 show_temp_reg(temp_max);
589 show_temp_reg(temp_max_hyst);
590
591 #define store_temp_reg(REG, reg) \
592 static ssize_t \
593 store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
594 { \
595         struct i2c_client *client = to_i2c_client(dev); \
596         struct w83627hf_data *data = i2c_get_clientdata(client); \
597         u32 val; \
598          \
599         val = simple_strtoul(buf, NULL, 10); \
600          \
601         mutex_lock(&data->update_lock); \
602          \
603         if (nr >= 2) {  /* TEMP2 and TEMP3 */ \
604                 data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
605                 w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
606                                 data->temp_##reg##_add[nr-2]); \
607         } else {        /* TEMP1 */ \
608                 data->temp_##reg = TEMP_TO_REG(val); \
609                 w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
610                         data->temp_##reg); \
611         } \
612          \
613         mutex_unlock(&data->update_lock); \
614         return count; \
615 }
616 store_temp_reg(OVER, max);
617 store_temp_reg(HYST, max_hyst);
618
619 #define sysfs_temp_offset(offset) \
620 static ssize_t \
621 show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
622 { \
623         return show_temp(dev, buf, offset); \
624 } \
625 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
626
627 #define sysfs_temp_reg_offset(reg, offset) \
628 static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
629 { \
630         return show_temp_##reg (dev, buf, offset); \
631 } \
632 static ssize_t \
633 store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, \
634                               const char *buf, size_t count) \
635 { \
636         return store_temp_##reg (dev, buf, count, offset); \
637 } \
638 static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, \
639                   show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
640
641 #define sysfs_temp_offsets(offset) \
642 sysfs_temp_offset(offset) \
643 sysfs_temp_reg_offset(max, offset) \
644 sysfs_temp_reg_offset(max_hyst, offset)
645
646 sysfs_temp_offsets(1);
647 sysfs_temp_offsets(2);
648 sysfs_temp_offsets(3);
649
650 #define device_create_file_temp(client, offset) \
651 do { \
652 device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
653 device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
654 device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
655 } while (0)
656
657 static ssize_t
658 show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
659 {
660         struct w83627hf_data *data = w83627hf_update_device(dev);
661         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
662 }
663 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
664 #define device_create_file_vid(client) \
665 device_create_file(&client->dev, &dev_attr_cpu0_vid)
666
667 static ssize_t
668 show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
669 {
670         struct w83627hf_data *data = w83627hf_update_device(dev);
671         return sprintf(buf, "%ld\n", (long) data->vrm);
672 }
673 static ssize_t
674 store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
675 {
676         struct i2c_client *client = to_i2c_client(dev);
677         struct w83627hf_data *data = i2c_get_clientdata(client);
678         u32 val;
679
680         val = simple_strtoul(buf, NULL, 10);
681         data->vrm = val;
682
683         return count;
684 }
685 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
686 #define device_create_file_vrm(client) \
687 device_create_file(&client->dev, &dev_attr_vrm)
688
689 static ssize_t
690 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
691 {
692         struct w83627hf_data *data = w83627hf_update_device(dev);
693         return sprintf(buf, "%ld\n", (long) data->alarms);
694 }
695 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
696 #define device_create_file_alarms(client) \
697 device_create_file(&client->dev, &dev_attr_alarms)
698
699 #define show_beep_reg(REG, reg) \
700 static ssize_t show_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
701 { \
702         struct w83627hf_data *data = w83627hf_update_device(dev); \
703         return sprintf(buf,"%ld\n", \
704                       (long)BEEP_##REG##_FROM_REG(data->beep_##reg)); \
705 }
706 show_beep_reg(ENABLE, enable)
707 show_beep_reg(MASK, mask)
708
709 #define BEEP_ENABLE                     0       /* Store beep_enable */
710 #define BEEP_MASK                       1       /* Store beep_mask */
711
712 static ssize_t
713 store_beep_reg(struct device *dev, const char *buf, size_t count,
714                int update_mask)
715 {
716         struct i2c_client *client = to_i2c_client(dev);
717         struct w83627hf_data *data = i2c_get_clientdata(client);
718         u32 val, val2;
719
720         val = simple_strtoul(buf, NULL, 10);
721
722         mutex_lock(&data->update_lock);
723
724         if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
725                 data->beep_mask = BEEP_MASK_TO_REG(val);
726                 w83627hf_write_value(client, W83781D_REG_BEEP_INTS1,
727                                     data->beep_mask & 0xff);
728                 w83627hf_write_value(client, W83781D_REG_BEEP_INTS3,
729                                     ((data->beep_mask) >> 16) & 0xff);
730                 val2 = (data->beep_mask >> 8) & 0x7f;
731         } else {                /* We are storing beep_enable */
732                 val2 =
733                     w83627hf_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
734                 data->beep_enable = BEEP_ENABLE_TO_REG(val);
735         }
736
737         w83627hf_write_value(client, W83781D_REG_BEEP_INTS2,
738                             val2 | data->beep_enable << 7);
739
740         mutex_unlock(&data->update_lock);
741         return count;
742 }
743
744 #define sysfs_beep(REG, reg) \
745 static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
746 { \
747         return show_beep_##reg(dev, attr, buf); \
748 } \
749 static ssize_t \
750 store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
751 { \
752         return store_beep_reg(dev, buf, count, BEEP_##REG); \
753 } \
754 static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, \
755                   show_regs_beep_##reg, store_regs_beep_##reg);
756
757 sysfs_beep(ENABLE, enable);
758 sysfs_beep(MASK, mask);
759
760 #define device_create_file_beep(client) \
761 do { \
762 device_create_file(&client->dev, &dev_attr_beep_enable); \
763 device_create_file(&client->dev, &dev_attr_beep_mask); \
764 } while (0)
765
766 static ssize_t
767 show_fan_div_reg(struct device *dev, char *buf, int nr)
768 {
769         struct w83627hf_data *data = w83627hf_update_device(dev);
770         return sprintf(buf, "%ld\n",
771                        (long) DIV_FROM_REG(data->fan_div[nr - 1]));
772 }
773
774 /* Note: we save and restore the fan minimum here, because its value is
775    determined in part by the fan divisor.  This follows the principle of
776    least suprise; the user doesn't expect the fan minimum to change just
777    because the divisor changed. */
778 static ssize_t
779 store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
780 {
781         struct i2c_client *client = to_i2c_client(dev);
782         struct w83627hf_data *data = i2c_get_clientdata(client);
783         unsigned long min;
784         u8 reg;
785         unsigned long val = simple_strtoul(buf, NULL, 10);
786
787         mutex_lock(&data->update_lock);
788
789         /* Save fan_min */
790         min = FAN_FROM_REG(data->fan_min[nr],
791                            DIV_FROM_REG(data->fan_div[nr]));
792
793         data->fan_div[nr] = DIV_TO_REG(val);
794
795         reg = (w83627hf_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
796                & (nr==0 ? 0xcf : 0x3f))
797             | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
798         w83627hf_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
799
800         reg = (w83627hf_read_value(client, W83781D_REG_VBAT)
801                & ~(1 << (5 + nr)))
802             | ((data->fan_div[nr] & 0x04) << (3 + nr));
803         w83627hf_write_value(client, W83781D_REG_VBAT, reg);
804
805         /* Restore fan_min */
806         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
807         w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
808
809         mutex_unlock(&data->update_lock);
810         return count;
811 }
812
813 #define sysfs_fan_div(offset) \
814 static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
815 { \
816         return show_fan_div_reg(dev, buf, offset); \
817 } \
818 static ssize_t \
819 store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, \
820                             const char *buf, size_t count) \
821 { \
822         return store_fan_div_reg(dev, buf, count, offset - 1); \
823 } \
824 static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
825                   show_regs_fan_div_##offset, store_regs_fan_div_##offset);
826
827 sysfs_fan_div(1);
828 sysfs_fan_div(2);
829 sysfs_fan_div(3);
830
831 #define device_create_file_fan_div(client, offset) \
832 do { \
833 device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
834 } while (0)
835
836 static ssize_t
837 show_pwm_reg(struct device *dev, char *buf, int nr)
838 {
839         struct w83627hf_data *data = w83627hf_update_device(dev);
840         return sprintf(buf, "%ld\n", (long) data->pwm[nr - 1]);
841 }
842
843 static ssize_t
844 store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
845 {
846         struct i2c_client *client = to_i2c_client(dev);
847         struct w83627hf_data *data = i2c_get_clientdata(client);
848         u32 val;
849
850         val = simple_strtoul(buf, NULL, 10);
851
852         mutex_lock(&data->update_lock);
853
854         if (data->type == w83627thf) {
855                 /* bits 0-3 are reserved  in 627THF */
856                 data->pwm[nr - 1] = PWM_TO_REG(val) & 0xf0;
857                 w83627hf_write_value(client,
858                                      W836X7HF_REG_PWM(data->type, nr),
859                                      data->pwm[nr - 1] |
860                                      (w83627hf_read_value(client,
861                                      W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
862         } else {
863                 data->pwm[nr - 1] = PWM_TO_REG(val);
864                 w83627hf_write_value(client,
865                                      W836X7HF_REG_PWM(data->type, nr),
866                                      data->pwm[nr - 1]);
867         }
868
869         mutex_unlock(&data->update_lock);
870         return count;
871 }
872
873 #define sysfs_pwm(offset) \
874 static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
875 { \
876         return show_pwm_reg(dev, buf, offset); \
877 } \
878 static ssize_t \
879 store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
880 { \
881         return store_pwm_reg(dev, buf, count, offset); \
882 } \
883 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
884                   show_regs_pwm_##offset, store_regs_pwm_##offset);
885
886 sysfs_pwm(1);
887 sysfs_pwm(2);
888 sysfs_pwm(3);
889
890 #define device_create_file_pwm(client, offset) \
891 do { \
892 device_create_file(&client->dev, &dev_attr_pwm##offset); \
893 } while (0)
894
895 static ssize_t
896 show_sensor_reg(struct device *dev, char *buf, int nr)
897 {
898         struct w83627hf_data *data = w83627hf_update_device(dev);
899         return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
900 }
901
902 static ssize_t
903 store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
904 {
905         struct i2c_client *client = to_i2c_client(dev);
906         struct w83627hf_data *data = i2c_get_clientdata(client);
907         u32 val, tmp;
908
909         val = simple_strtoul(buf, NULL, 10);
910
911         mutex_lock(&data->update_lock);
912
913         switch (val) {
914         case 1:         /* PII/Celeron diode */
915                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
916                 w83627hf_write_value(client, W83781D_REG_SCFG1,
917                                     tmp | BIT_SCFG1[nr - 1]);
918                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
919                 w83627hf_write_value(client, W83781D_REG_SCFG2,
920                                     tmp | BIT_SCFG2[nr - 1]);
921                 data->sens[nr - 1] = val;
922                 break;
923         case 2:         /* 3904 */
924                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
925                 w83627hf_write_value(client, W83781D_REG_SCFG1,
926                                     tmp | BIT_SCFG1[nr - 1]);
927                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
928                 w83627hf_write_value(client, W83781D_REG_SCFG2,
929                                     tmp & ~BIT_SCFG2[nr - 1]);
930                 data->sens[nr - 1] = val;
931                 break;
932         case W83781D_DEFAULT_BETA:      /* thermistor */
933                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
934                 w83627hf_write_value(client, W83781D_REG_SCFG1,
935                                     tmp & ~BIT_SCFG1[nr - 1]);
936                 data->sens[nr - 1] = val;
937                 break;
938         default:
939                 dev_err(&client->dev,
940                        "Invalid sensor type %ld; must be 1, 2, or %d\n",
941                        (long) val, W83781D_DEFAULT_BETA);
942                 break;
943         }
944
945         mutex_unlock(&data->update_lock);
946         return count;
947 }
948
949 #define sysfs_sensor(offset) \
950 static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
951 { \
952     return show_sensor_reg(dev, buf, offset); \
953 } \
954 static ssize_t \
955 store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
956 { \
957     return store_sensor_reg(dev, buf, count, offset); \
958 } \
959 static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
960                   show_regs_sensor_##offset, store_regs_sensor_##offset);
961
962 sysfs_sensor(1);
963 sysfs_sensor(2);
964 sysfs_sensor(3);
965
966 #define device_create_file_sensor(client, offset) \
967 do { \
968 device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
969 } while (0)
970
971
972 static int __init w83627hf_find(int sioaddr, unsigned short *addr)
973 {
974         u16 val;
975
976         REG = sioaddr;
977         VAL = sioaddr + 1;
978
979         superio_enter();
980         val= superio_inb(DEVID);
981         if(val != W627_DEVID &&
982            val != W627THF_DEVID &&
983            val != W697_DEVID &&
984            val != W637_DEVID) {
985                 superio_exit();
986                 return -ENODEV;
987         }
988
989         superio_select(W83627HF_LD_HWM);
990         val = (superio_inb(WINB_BASE_REG) << 8) |
991                superio_inb(WINB_BASE_REG + 1);
992         *addr = val & WINB_ALIGNMENT;
993         if (*addr == 0 && force_addr == 0) {
994                 superio_exit();
995                 return -ENODEV;
996         }
997
998         superio_exit();
999         return 0;
1000 }
1001
1002 static int w83627hf_detect(struct i2c_adapter *adapter)
1003 {
1004         int val, kind;
1005         struct i2c_client *new_client;
1006         struct w83627hf_data *data;
1007         int err = 0;
1008         const char *client_name = "";
1009
1010         if(force_addr)
1011                 address = force_addr & WINB_ALIGNMENT;
1012
1013         if (!request_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE,
1014                             w83627hf_driver.driver.name)) {
1015                 err = -EBUSY;
1016                 goto ERROR0;
1017         }
1018
1019         if(force_addr) {
1020                 printk("w83627hf.o: forcing ISA address 0x%04X\n", address);
1021                 superio_enter();
1022                 superio_select(W83627HF_LD_HWM);
1023                 superio_outb(WINB_BASE_REG, address >> 8);
1024                 superio_outb(WINB_BASE_REG+1, address & 0xff);
1025                 superio_exit();
1026         }
1027
1028         superio_enter();
1029         val= superio_inb(DEVID);
1030         if(val == W627_DEVID)
1031                 kind = w83627hf;
1032         else if(val == W697_DEVID)
1033                 kind = w83697hf;
1034         else if(val == W627THF_DEVID)
1035                 kind = w83627thf;
1036         else if(val == W637_DEVID)
1037                 kind = w83637hf;
1038         else {
1039                 dev_info(&adapter->dev,
1040                          "Unsupported chip (dev_id=0x%02X).\n", val);
1041                 goto ERROR1;
1042         }
1043
1044         superio_select(W83627HF_LD_HWM);
1045         if((val = 0x01 & superio_inb(WINB_ACT_REG)) == 0)
1046                 superio_outb(WINB_ACT_REG, 1);
1047         superio_exit();
1048
1049         /* OK. For now, we presume we have a valid client. We now create the
1050            client structure, even though we cannot fill it completely yet.
1051            But it allows us to access w83627hf_{read,write}_value. */
1052
1053         if (!(data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
1054                 err = -ENOMEM;
1055                 goto ERROR1;
1056         }
1057
1058         new_client = &data->client;
1059         i2c_set_clientdata(new_client, data);
1060         new_client->addr = address;
1061         mutex_init(&data->lock);
1062         new_client->adapter = adapter;
1063         new_client->driver = &w83627hf_driver;
1064         new_client->flags = 0;
1065
1066
1067         if (kind == w83627hf) {
1068                 client_name = "w83627hf";
1069         } else if (kind == w83627thf) {
1070                 client_name = "w83627thf";
1071         } else if (kind == w83697hf) {
1072                 client_name = "w83697hf";
1073         } else if (kind == w83637hf) {
1074                 client_name = "w83637hf";
1075         }
1076
1077         /* Fill in the remaining client fields and put into the global list */
1078         strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
1079         data->type = kind;
1080         data->valid = 0;
1081         mutex_init(&data->update_lock);
1082
1083         /* Tell the I2C layer a new client has arrived */
1084         if ((err = i2c_attach_client(new_client)))
1085                 goto ERROR2;
1086
1087         data->lm75 = NULL;
1088
1089         /* Initialize the chip */
1090         w83627hf_init_client(new_client);
1091
1092         /* A few vars need to be filled upon startup */
1093         data->fan_min[0] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(1));
1094         data->fan_min[1] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(2));
1095         data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3));
1096
1097         /* Register sysfs hooks */
1098         data->class_dev = hwmon_device_register(&new_client->dev);
1099         if (IS_ERR(data->class_dev)) {
1100                 err = PTR_ERR(data->class_dev);
1101                 goto ERROR3;
1102         }
1103
1104         device_create_file_in(new_client, 0);
1105         if (kind != w83697hf)
1106                 device_create_file_in(new_client, 1);
1107         device_create_file_in(new_client, 2);
1108         device_create_file_in(new_client, 3);
1109         device_create_file_in(new_client, 4);
1110         if (kind != w83627thf && kind != w83637hf) {
1111                 device_create_file_in(new_client, 5);
1112                 device_create_file_in(new_client, 6);
1113         }
1114         device_create_file_in(new_client, 7);
1115         device_create_file_in(new_client, 8);
1116
1117         device_create_file_fan(new_client, 1);
1118         device_create_file_fan(new_client, 2);
1119         if (kind != w83697hf)
1120                 device_create_file_fan(new_client, 3);
1121
1122         device_create_file_temp(new_client, 1);
1123         device_create_file_temp(new_client, 2);
1124         if (kind != w83697hf)
1125                 device_create_file_temp(new_client, 3);
1126
1127         if (kind != w83697hf && data->vid != 0xff) {
1128                 device_create_file_vid(new_client);
1129                 device_create_file_vrm(new_client);
1130         }
1131
1132         device_create_file_fan_div(new_client, 1);
1133         device_create_file_fan_div(new_client, 2);
1134         if (kind != w83697hf)
1135                 device_create_file_fan_div(new_client, 3);
1136
1137         device_create_file_alarms(new_client);
1138
1139         device_create_file_beep(new_client);
1140
1141         device_create_file_pwm(new_client, 1);
1142         device_create_file_pwm(new_client, 2);
1143         if (kind == w83627thf || kind == w83637hf)
1144                 device_create_file_pwm(new_client, 3);
1145
1146         device_create_file_sensor(new_client, 1);
1147         device_create_file_sensor(new_client, 2);
1148         if (kind != w83697hf)
1149                 device_create_file_sensor(new_client, 3);
1150
1151         return 0;
1152
1153       ERROR3:
1154         i2c_detach_client(new_client);
1155       ERROR2:
1156         kfree(data);
1157       ERROR1:
1158         release_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE);
1159       ERROR0:
1160         return err;
1161 }
1162
1163 static int w83627hf_detach_client(struct i2c_client *client)
1164 {
1165         struct w83627hf_data *data = i2c_get_clientdata(client);
1166         int err;
1167
1168         hwmon_device_unregister(data->class_dev);
1169
1170         if ((err = i2c_detach_client(client)))
1171                 return err;
1172
1173         release_region(client->addr + WINB_REGION_OFFSET, WINB_REGION_SIZE);
1174         kfree(data);
1175
1176         return 0;
1177 }
1178
1179
1180 /*
1181    ISA access must always be locked explicitly!
1182    We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
1183    would slow down the W83781D access and should not be necessary.
1184    There are some ugly typecasts here, but the good news is - they should
1185    nowhere else be necessary! */
1186 static int w83627hf_read_value(struct i2c_client *client, u16 reg)
1187 {
1188         struct w83627hf_data *data = i2c_get_clientdata(client);
1189         int res, word_sized;
1190
1191         mutex_lock(&data->lock);
1192         word_sized = (((reg & 0xff00) == 0x100)
1193                    || ((reg & 0xff00) == 0x200))
1194                   && (((reg & 0x00ff) == 0x50)
1195                    || ((reg & 0x00ff) == 0x53)
1196                    || ((reg & 0x00ff) == 0x55));
1197         if (reg & 0xff00) {
1198                 outb_p(W83781D_REG_BANK,
1199                        client->addr + W83781D_ADDR_REG_OFFSET);
1200                 outb_p(reg >> 8,
1201                        client->addr + W83781D_DATA_REG_OFFSET);
1202         }
1203         outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
1204         res = inb_p(client->addr + W83781D_DATA_REG_OFFSET);
1205         if (word_sized) {
1206                 outb_p((reg & 0xff) + 1,
1207                        client->addr + W83781D_ADDR_REG_OFFSET);
1208                 res =
1209                     (res << 8) + inb_p(client->addr +
1210                                        W83781D_DATA_REG_OFFSET);
1211         }
1212         if (reg & 0xff00) {
1213                 outb_p(W83781D_REG_BANK,
1214                        client->addr + W83781D_ADDR_REG_OFFSET);
1215                 outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
1216         }
1217         mutex_unlock(&data->lock);
1218         return res;
1219 }
1220
1221 static int w83627thf_read_gpio5(struct i2c_client *client)
1222 {
1223         int res = 0xff, sel;
1224
1225         superio_enter();
1226         superio_select(W83627HF_LD_GPIO5);
1227
1228         /* Make sure these GPIO pins are enabled */
1229         if (!(superio_inb(W83627THF_GPIO5_EN) & (1<<3))) {
1230                 dev_dbg(&client->dev, "GPIO5 disabled, no VID function\n");
1231                 goto exit;
1232         }
1233
1234         /* Make sure the pins are configured for input
1235            There must be at least five (VRM 9), and possibly 6 (VRM 10) */
1236         sel = superio_inb(W83627THF_GPIO5_IOSR) & 0x3f;
1237         if ((sel & 0x1f) != 0x1f) {
1238                 dev_dbg(&client->dev, "GPIO5 not configured for VID "
1239                         "function\n");
1240                 goto exit;
1241         }
1242
1243         dev_info(&client->dev, "Reading VID from GPIO5\n");
1244         res = superio_inb(W83627THF_GPIO5_DR) & sel;
1245
1246 exit:
1247         superio_exit();
1248         return res;
1249 }
1250
1251 static int w83627hf_write_value(struct i2c_client *client, u16 reg, u16 value)
1252 {
1253         struct w83627hf_data *data = i2c_get_clientdata(client);
1254         int word_sized;
1255
1256         mutex_lock(&data->lock);
1257         word_sized = (((reg & 0xff00) == 0x100)
1258                    || ((reg & 0xff00) == 0x200))
1259                   && (((reg & 0x00ff) == 0x53)
1260                    || ((reg & 0x00ff) == 0x55));
1261         if (reg & 0xff00) {
1262                 outb_p(W83781D_REG_BANK,
1263                        client->addr + W83781D_ADDR_REG_OFFSET);
1264                 outb_p(reg >> 8,
1265                        client->addr + W83781D_DATA_REG_OFFSET);
1266         }
1267         outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
1268         if (word_sized) {
1269                 outb_p(value >> 8,
1270                        client->addr + W83781D_DATA_REG_OFFSET);
1271                 outb_p((reg & 0xff) + 1,
1272                        client->addr + W83781D_ADDR_REG_OFFSET);
1273         }
1274         outb_p(value & 0xff,
1275                client->addr + W83781D_DATA_REG_OFFSET);
1276         if (reg & 0xff00) {
1277                 outb_p(W83781D_REG_BANK,
1278                        client->addr + W83781D_ADDR_REG_OFFSET);
1279                 outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
1280         }
1281         mutex_unlock(&data->lock);
1282         return 0;
1283 }
1284
1285 static void w83627hf_init_client(struct i2c_client *client)
1286 {
1287         struct w83627hf_data *data = i2c_get_clientdata(client);
1288         int i;
1289         int type = data->type;
1290         u8 tmp;
1291
1292         if (reset) {
1293                 /* Resetting the chip has been the default for a long time,
1294                    but repeatedly caused problems (fans going to full
1295                    speed...) so it is now optional. It might even go away if
1296                    nobody reports it as being useful, as I see very little
1297                    reason why this would be needed at all. */
1298                 dev_info(&client->dev, "If reset=1 solved a problem you were "
1299                          "having, please report!\n");
1300
1301                 /* save this register */
1302                 i = w83627hf_read_value(client, W83781D_REG_BEEP_CONFIG);
1303                 /* Reset all except Watchdog values and last conversion values
1304                    This sets fan-divs to 2, among others */
1305                 w83627hf_write_value(client, W83781D_REG_CONFIG, 0x80);
1306                 /* Restore the register and disable power-on abnormal beep.
1307                    This saves FAN 1/2/3 input/output values set by BIOS. */
1308                 w83627hf_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
1309                 /* Disable master beep-enable (reset turns it on).
1310                    Individual beeps should be reset to off but for some reason
1311                    disabling this bit helps some people not get beeped */
1312                 w83627hf_write_value(client, W83781D_REG_BEEP_INTS2, 0);
1313         }
1314
1315         /* Minimize conflicts with other winbond i2c-only clients...  */
1316         /* disable i2c subclients... how to disable main i2c client?? */
1317         /* force i2c address to relatively uncommon address */
1318         w83627hf_write_value(client, W83781D_REG_I2C_SUBADDR, 0x89);
1319         w83627hf_write_value(client, W83781D_REG_I2C_ADDR, force_i2c);
1320
1321         /* Read VID only once */
1322         if (w83627hf == data->type || w83637hf == data->type) {
1323                 int lo = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
1324                 int hi = w83627hf_read_value(client, W83781D_REG_CHIPID);
1325                 data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
1326         } else if (w83627thf == data->type) {
1327                 data->vid = w83627thf_read_gpio5(client);
1328         }
1329
1330         /* Read VRM & OVT Config only once */
1331         if (w83627thf == data->type || w83637hf == data->type) {
1332                 data->vrm_ovt = 
1333                         w83627hf_read_value(client, W83627THF_REG_VRM_OVT_CFG);
1334         }
1335
1336         /* Convert VID to voltage based on VRM */
1337         data->vrm = vid_which_vrm();
1338
1339         tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
1340         for (i = 1; i <= 3; i++) {
1341                 if (!(tmp & BIT_SCFG1[i - 1])) {
1342                         data->sens[i - 1] = W83781D_DEFAULT_BETA;
1343                 } else {
1344                         if (w83627hf_read_value
1345                             (client,
1346                              W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
1347                                 data->sens[i - 1] = 1;
1348                         else
1349                                 data->sens[i - 1] = 2;
1350                 }
1351                 if ((type == w83697hf) && (i == 2))
1352                         break;
1353         }
1354
1355         if(init) {
1356                 /* Enable temp2 */
1357                 tmp = w83627hf_read_value(client, W83781D_REG_TEMP2_CONFIG);
1358                 if (tmp & 0x01) {
1359                         dev_warn(&client->dev, "Enabling temp2, readings "
1360                                  "might not make sense\n");
1361                         w83627hf_write_value(client, W83781D_REG_TEMP2_CONFIG,
1362                                 tmp & 0xfe);
1363                 }
1364
1365                 /* Enable temp3 */
1366                 if (type != w83697hf) {
1367                         tmp = w83627hf_read_value(client,
1368                                 W83781D_REG_TEMP3_CONFIG);
1369                         if (tmp & 0x01) {
1370                                 dev_warn(&client->dev, "Enabling temp3, "
1371                                          "readings might not make sense\n");
1372                                 w83627hf_write_value(client,
1373                                         W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
1374                         }
1375                 }
1376         }
1377
1378         /* Start monitoring */
1379         w83627hf_write_value(client, W83781D_REG_CONFIG,
1380                             (w83627hf_read_value(client,
1381                                                 W83781D_REG_CONFIG) & 0xf7)
1382                             | 0x01);
1383 }
1384
1385 static struct w83627hf_data *w83627hf_update_device(struct device *dev)
1386 {
1387         struct i2c_client *client = to_i2c_client(dev);
1388         struct w83627hf_data *data = i2c_get_clientdata(client);
1389         int i;
1390
1391         mutex_lock(&data->update_lock);
1392
1393         if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1394             || !data->valid) {
1395                 for (i = 0; i <= 8; i++) {
1396                         /* skip missing sensors */
1397                         if (((data->type == w83697hf) && (i == 1)) ||
1398                             ((data->type == w83627thf || data->type == w83637hf)
1399                             && (i == 5 || i == 6)))
1400                                 continue;
1401                         data->in[i] =
1402                             w83627hf_read_value(client, W83781D_REG_IN(i));
1403                         data->in_min[i] =
1404                             w83627hf_read_value(client,
1405                                                W83781D_REG_IN_MIN(i));
1406                         data->in_max[i] =
1407                             w83627hf_read_value(client,
1408                                                W83781D_REG_IN_MAX(i));
1409                 }
1410                 for (i = 1; i <= 3; i++) {
1411                         data->fan[i - 1] =
1412                             w83627hf_read_value(client, W83781D_REG_FAN(i));
1413                         data->fan_min[i - 1] =
1414                             w83627hf_read_value(client,
1415                                                W83781D_REG_FAN_MIN(i));
1416                 }
1417                 for (i = 1; i <= 3; i++) {
1418                         u8 tmp = w83627hf_read_value(client,
1419                                 W836X7HF_REG_PWM(data->type, i));
1420                         /* bits 0-3 are reserved  in 627THF */
1421                         if (data->type == w83627thf)
1422                                 tmp &= 0xf0;
1423                         data->pwm[i - 1] = tmp;
1424                         if(i == 2 &&
1425                            (data->type == w83627hf || data->type == w83697hf))
1426                                 break;
1427                 }
1428
1429                 data->temp = w83627hf_read_value(client, W83781D_REG_TEMP(1));
1430                 data->temp_max =
1431                     w83627hf_read_value(client, W83781D_REG_TEMP_OVER(1));
1432                 data->temp_max_hyst =
1433                     w83627hf_read_value(client, W83781D_REG_TEMP_HYST(1));
1434                 data->temp_add[0] =
1435                     w83627hf_read_value(client, W83781D_REG_TEMP(2));
1436                 data->temp_max_add[0] =
1437                     w83627hf_read_value(client, W83781D_REG_TEMP_OVER(2));
1438                 data->temp_max_hyst_add[0] =
1439                     w83627hf_read_value(client, W83781D_REG_TEMP_HYST(2));
1440                 if (data->type != w83697hf) {
1441                         data->temp_add[1] =
1442                           w83627hf_read_value(client, W83781D_REG_TEMP(3));
1443                         data->temp_max_add[1] =
1444                           w83627hf_read_value(client, W83781D_REG_TEMP_OVER(3));
1445                         data->temp_max_hyst_add[1] =
1446                           w83627hf_read_value(client, W83781D_REG_TEMP_HYST(3));
1447                 }
1448
1449                 i = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
1450                 data->fan_div[0] = (i >> 4) & 0x03;
1451                 data->fan_div[1] = (i >> 6) & 0x03;
1452                 if (data->type != w83697hf) {
1453                         data->fan_div[2] = (w83627hf_read_value(client,
1454                                                W83781D_REG_PIN) >> 6) & 0x03;
1455                 }
1456                 i = w83627hf_read_value(client, W83781D_REG_VBAT);
1457                 data->fan_div[0] |= (i >> 3) & 0x04;
1458                 data->fan_div[1] |= (i >> 4) & 0x04;
1459                 if (data->type != w83697hf)
1460                         data->fan_div[2] |= (i >> 5) & 0x04;
1461                 data->alarms =
1462                     w83627hf_read_value(client, W83781D_REG_ALARM1) |
1463                     (w83627hf_read_value(client, W83781D_REG_ALARM2) << 8) |
1464                     (w83627hf_read_value(client, W83781D_REG_ALARM3) << 16);
1465                 i = w83627hf_read_value(client, W83781D_REG_BEEP_INTS2);
1466                 data->beep_enable = i >> 7;
1467                 data->beep_mask = ((i & 0x7f) << 8) |
1468                     w83627hf_read_value(client, W83781D_REG_BEEP_INTS1) |
1469                     w83627hf_read_value(client, W83781D_REG_BEEP_INTS3) << 16;
1470                 data->last_updated = jiffies;
1471                 data->valid = 1;
1472         }
1473
1474         mutex_unlock(&data->update_lock);
1475
1476         return data;
1477 }
1478
1479 static int __init sensors_w83627hf_init(void)
1480 {
1481         if (w83627hf_find(0x2e, &address)
1482          && w83627hf_find(0x4e, &address)) {
1483                 return -ENODEV;
1484         }
1485
1486         return i2c_isa_add_driver(&w83627hf_driver);
1487 }
1488
1489 static void __exit sensors_w83627hf_exit(void)
1490 {
1491         i2c_isa_del_driver(&w83627hf_driver);
1492 }
1493
1494 MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
1495               "Philip Edelbrock <phil@netroedge.com>, "
1496               "and Mark Studebaker <mdsxyz123@yahoo.com>");
1497 MODULE_DESCRIPTION("W83627HF driver");
1498 MODULE_LICENSE("GPL");
1499
1500 module_init(sensors_w83627hf_init);
1501 module_exit(sensors_w83627hf_exit);