linux/drivers/hwmon/w83627hf.c
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   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 * Copyright (c) 2007 - 1012  Jean Delvare <khali@linux-fr.org>
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License as published by
  12 * the Free Software Foundation; either version 2 of the License, or
  13 * (at your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful,
  16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 * GNU General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 */
  24
  25/*
  26 * Supports following chips:
  27 *
  28 * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  29 * w83627hf     9       3       2       3       0x20    0x5ca3  no      yes(LPC)
  30 * w83627thf    7       3       3       3       0x90    0x5ca3  no      yes(LPC)
  31 * w83637hf     7       3       3       3       0x80    0x5ca3  no      yes(LPC)
  32 * w83687thf    7       3       3       3       0x90    0x5ca3  no      yes(LPC)
  33 * w83697hf     8       2       2       2       0x60    0x5ca3  no      yes(LPC)
  34 *
  35 * For other winbond chips, and for i2c support in the above chips,
  36 * use w83781d.c.
  37 *
  38 * Note: automatic ("cruise") fan control for 697, 637 & 627thf not
  39 * supported yet.
  40 */
  41
  42#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  43
  44#include <linux/module.h>
  45#include <linux/init.h>
  46#include <linux/slab.h>
  47#include <linux/jiffies.h>
  48#include <linux/platform_device.h>
  49#include <linux/hwmon.h>
  50#include <linux/hwmon-sysfs.h>
  51#include <linux/hwmon-vid.h>
  52#include <linux/err.h>
  53#include <linux/mutex.h>
  54#include <linux/ioport.h>
  55#include <linux/acpi.h>
  56#include <linux/io.h>
  57#include "lm75.h"
  58
  59static struct platform_device *pdev;
  60
  61#define DRVNAME "w83627hf"
  62enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
  63
  64struct w83627hf_sio_data {
  65        enum chips type;
  66        int sioaddr;
  67};
  68
  69static u8 force_i2c = 0x1f;
  70module_param(force_i2c, byte, 0);
  71MODULE_PARM_DESC(force_i2c,
  72                 "Initialize the i2c address of the sensors");
  73
  74static bool init = 1;
  75module_param(init, bool, 0);
  76MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
  77
  78static unsigned short force_id;
  79module_param(force_id, ushort, 0);
  80MODULE_PARM_DESC(force_id, "Override the detected device ID");
  81
  82/* modified from kernel/include/traps.c */
  83#define DEV                     0x07 /* Register: Logical device select */
  84
  85/* logical device numbers for superio_select (below) */
  86#define W83627HF_LD_FDC         0x00
  87#define W83627HF_LD_PRT         0x01
  88#define W83627HF_LD_UART1       0x02
  89#define W83627HF_LD_UART2       0x03
  90#define W83627HF_LD_KBC         0x05
  91#define W83627HF_LD_CIR         0x06 /* w83627hf only */
  92#define W83627HF_LD_GAME        0x07
  93#define W83627HF_LD_MIDI        0x07
  94#define W83627HF_LD_GPIO1       0x07
  95#define W83627HF_LD_GPIO5       0x07 /* w83627thf only */
  96#define W83627HF_LD_GPIO2       0x08
  97#define W83627HF_LD_GPIO3       0x09
  98#define W83627HF_LD_GPIO4       0x09 /* w83627thf only */
  99#define W83627HF_LD_ACPI        0x0a
 100#define W83627HF_LD_HWM         0x0b
 101
 102#define DEVID                   0x20 /* Register: Device ID */
 103
 104#define W83627THF_GPIO5_EN      0x30 /* w83627thf only */
 105#define W83627THF_GPIO5_IOSR    0xf3 /* w83627thf only */
 106#define W83627THF_GPIO5_DR      0xf4 /* w83627thf only */
 107
 108#define W83687THF_VID_EN        0x29 /* w83687thf only */
 109#define W83687THF_VID_CFG       0xF0 /* w83687thf only */
 110#define W83687THF_VID_DATA      0xF1 /* w83687thf only */
 111
 112static inline void
 113superio_outb(struct w83627hf_sio_data *sio, int reg, int val)
 114{
 115        outb(reg, sio->sioaddr);
 116        outb(val, sio->sioaddr + 1);
 117}
 118
 119static inline int
 120superio_inb(struct w83627hf_sio_data *sio, int reg)
 121{
 122        outb(reg, sio->sioaddr);
 123        return inb(sio->sioaddr + 1);
 124}
 125
 126static inline void
 127superio_select(struct w83627hf_sio_data *sio, int ld)
 128{
 129        outb(DEV, sio->sioaddr);
 130        outb(ld,  sio->sioaddr + 1);
 131}
 132
 133static inline void
 134superio_enter(struct w83627hf_sio_data *sio)
 135{
 136        outb(0x87, sio->sioaddr);
 137        outb(0x87, sio->sioaddr);
 138}
 139
 140static inline void
 141superio_exit(struct w83627hf_sio_data *sio)
 142{
 143        outb(0xAA, sio->sioaddr);
 144}
 145
 146#define W627_DEVID 0x52
 147#define W627THF_DEVID 0x82
 148#define W697_DEVID 0x60
 149#define W637_DEVID 0x70
 150#define W687THF_DEVID 0x85
 151#define WINB_ACT_REG 0x30
 152#define WINB_BASE_REG 0x60
 153/* Constants specified below */
 154
 155/* Alignment of the base address */
 156#define WINB_ALIGNMENT          ~7
 157
 158/* Offset & size of I/O region we are interested in */
 159#define WINB_REGION_OFFSET      5
 160#define WINB_REGION_SIZE        2
 161
 162/* Where are the sensors address/data registers relative to the region offset */
 163#define W83781D_ADDR_REG_OFFSET 0
 164#define W83781D_DATA_REG_OFFSET 1
 165
 166/* The W83781D registers */
 167/* The W83782D registers for nr=7,8 are in bank 5 */
 168#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
 169                                           (0x554 + (((nr) - 7) * 2)))
 170#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
 171                                           (0x555 + (((nr) - 7) * 2)))
 172#define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
 173                                           (0x550 + (nr) - 7))
 174
 175/* nr:0-2 for fans:1-3 */
 176#define W83627HF_REG_FAN_MIN(nr)        (0x3b + (nr))
 177#define W83627HF_REG_FAN(nr)            (0x28 + (nr))
 178
 179#define W83627HF_REG_TEMP2_CONFIG 0x152
 180#define W83627HF_REG_TEMP3_CONFIG 0x252
 181/* these are zero-based, unlike config constants above */
 182static const u16 w83627hf_reg_temp[]            = { 0x27, 0x150, 0x250 };
 183static const u16 w83627hf_reg_temp_hyst[]       = { 0x3A, 0x153, 0x253 };
 184static const u16 w83627hf_reg_temp_over[]       = { 0x39, 0x155, 0x255 };
 185
 186#define W83781D_REG_BANK 0x4E
 187
 188#define W83781D_REG_CONFIG 0x40
 189#define W83781D_REG_ALARM1 0x459
 190#define W83781D_REG_ALARM2 0x45A
 191#define W83781D_REG_ALARM3 0x45B
 192
 193#define W83781D_REG_BEEP_CONFIG 0x4D
 194#define W83781D_REG_BEEP_INTS1 0x56
 195#define W83781D_REG_BEEP_INTS2 0x57
 196#define W83781D_REG_BEEP_INTS3 0x453
 197
 198#define W83781D_REG_VID_FANDIV 0x47
 199
 200#define W83781D_REG_CHIPID 0x49
 201#define W83781D_REG_WCHIPID 0x58
 202#define W83781D_REG_CHIPMAN 0x4F
 203#define W83781D_REG_PIN 0x4B
 204
 205#define W83781D_REG_VBAT 0x5D
 206
 207#define W83627HF_REG_PWM1 0x5A
 208#define W83627HF_REG_PWM2 0x5B
 209
 210static const u8 W83627THF_REG_PWM_ENABLE[] = {
 211        0x04,           /* FAN 1 mode */
 212        0x04,           /* FAN 2 mode */
 213        0x12,           /* FAN AUX mode */
 214};
 215static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };
 216
 217#define W83627THF_REG_PWM1              0x01    /* 697HF/637HF/687THF too */
 218#define W83627THF_REG_PWM2              0x03    /* 697HF/637HF/687THF too */
 219#define W83627THF_REG_PWM3              0x11    /* 637HF/687THF too */
 220
 221#define W83627THF_REG_VRM_OVT_CFG       0x18    /* 637HF/687THF too */
 222
 223static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
 224static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
 225                             W83627THF_REG_PWM3 };
 226#define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
 227                                    regpwm_627hf[nr] : regpwm[nr])
 228
 229#define W83627HF_REG_PWM_FREQ           0x5C    /* Only for the 627HF */
 230
 231#define W83637HF_REG_PWM_FREQ1          0x00    /* 697HF/687THF too */
 232#define W83637HF_REG_PWM_FREQ2          0x02    /* 697HF/687THF too */
 233#define W83637HF_REG_PWM_FREQ3          0x10    /* 687THF too */
 234
 235static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
 236                                        W83637HF_REG_PWM_FREQ2,
 237                                        W83637HF_REG_PWM_FREQ3 };
 238
 239#define W83627HF_BASE_PWM_FREQ  46870
 240
 241#define W83781D_REG_I2C_ADDR 0x48
 242#define W83781D_REG_I2C_SUBADDR 0x4A
 243
 244/* Sensor selection */
 245#define W83781D_REG_SCFG1 0x5D
 246static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
 247#define W83781D_REG_SCFG2 0x59
 248static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
 249#define W83781D_DEFAULT_BETA 3435
 250
 251/*
 252 * Conversions. Limit checking is only done on the TO_REG
 253 * variants. Note that you should be a bit careful with which arguments
 254 * these macros are called: arguments may be evaluated more than once.
 255 * Fixing this is just not worth it.
 256 */
 257#define IN_TO_REG(val)  (SENSORS_LIMIT((((val) + 8)/16),0,255))
 258#define IN_FROM_REG(val) ((val) * 16)
 259
 260static inline u8 FAN_TO_REG(long rpm, int div)
 261{
 262        if (rpm == 0)
 263                return 255;
 264        rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 265        return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
 266                             254);
 267}
 268
 269#define TEMP_MIN (-128000)
 270#define TEMP_MAX ( 127000)
 271
 272/*
 273 * TEMP: 0.001C/bit (-128C to +127C)
 274 * REG: 1C/bit, two's complement
 275 */
 276static u8 TEMP_TO_REG(long temp)
 277{
 278        int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
 279        ntemp += (ntemp<0 ? -500 : 500);
 280        return (u8)(ntemp / 1000);
 281}
 282
 283static int TEMP_FROM_REG(u8 reg)
 284{
 285        return (s8)reg * 1000;
 286}
 287
 288#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
 289
 290#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
 291
 292static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
 293{
 294        unsigned long freq;
 295        freq = W83627HF_BASE_PWM_FREQ >> reg;
 296        return freq;
 297}
 298static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
 299{
 300        u8 i;
 301        /*
 302         * Only 5 dividers (1 2 4 8 16)
 303         * Search for the nearest available frequency
 304         */
 305        for (i = 0; i < 4; i++) {
 306                if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
 307                            (W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
 308                        break;
 309        }
 310        return i;
 311}
 312
 313static inline unsigned long pwm_freq_from_reg(u8 reg)
 314{
 315        /* Clock bit 8 -> 180 kHz or 24 MHz */
 316        unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
 317
 318        reg &= 0x7f;
 319        /* This should not happen but anyway... */
 320        if (reg == 0)
 321                reg++;
 322        return clock / (reg << 8);
 323}
 324static inline u8 pwm_freq_to_reg(unsigned long val)
 325{
 326        /* Minimum divider value is 0x01 and maximum is 0x7F */
 327        if (val >= 93750)       /* The highest we can do */
 328                return 0x01;
 329        if (val >= 720) /* Use 24 MHz clock */
 330                return 24000000UL / (val << 8);
 331        if (val < 6)            /* The lowest we can do */
 332                return 0xFF;
 333        else                    /* Use 180 kHz clock */
 334                return 0x80 | (180000UL / (val << 8));
 335}
 336
 337#define BEEP_MASK_FROM_REG(val)         ((val) & 0xff7fff)
 338#define BEEP_MASK_TO_REG(val)           ((val) & 0xff7fff)
 339
 340#define DIV_FROM_REG(val) (1 << (val))
 341
 342static inline u8 DIV_TO_REG(long val)
 343{
 344        int i;
 345        val = SENSORS_LIMIT(val, 1, 128) >> 1;
 346        for (i = 0; i < 7; i++) {
 347                if (val == 0)
 348                        break;
 349                val >>= 1;
 350        }
 351        return (u8)i;
 352}
 353
 354/*
 355 * For each registered chip, we need to keep some data in memory.
 356 * The structure is dynamically allocated.
 357 */
 358struct w83627hf_data {
 359        unsigned short addr;
 360        const char *name;
 361        struct device *hwmon_dev;
 362        struct mutex lock;
 363        enum chips type;
 364
 365        struct mutex update_lock;
 366        char valid;             /* !=0 if following fields are valid */
 367        unsigned long last_updated;     /* In jiffies */
 368
 369        u8 in[9];               /* Register value */
 370        u8 in_max[9];           /* Register value */
 371        u8 in_min[9];           /* Register value */
 372        u8 fan[3];              /* Register value */
 373        u8 fan_min[3];          /* Register value */
 374        u16 temp[3];            /* Register value */
 375        u16 temp_max[3];        /* Register value */
 376        u16 temp_max_hyst[3];   /* Register value */
 377        u8 fan_div[3];          /* Register encoding, shifted right */
 378        u8 vid;                 /* Register encoding, combined */
 379        u32 alarms;             /* Register encoding, combined */
 380        u32 beep_mask;          /* Register encoding, combined */
 381        u8 pwm[3];              /* Register value */
 382        u8 pwm_enable[3];       /* 1 = manual
 383                                 * 2 = thermal cruise (also called SmartFan I)
 384                                 * 3 = fan speed cruise
 385                                 */
 386        u8 pwm_freq[3];         /* Register value */
 387        u16 sens[3];            /* 1 = pentium diode; 2 = 3904 diode;
 388                                 * 4 = thermistor
 389                                 */
 390        u8 vrm;
 391        u8 vrm_ovt;             /* Register value, 627THF/637HF/687THF only */
 392
 393#ifdef CONFIG_PM
 394        /* Remember extra register values over suspend/resume */
 395        u8 scfg1;
 396        u8 scfg2;
 397#endif
 398};
 399
 400
 401static int w83627hf_probe(struct platform_device *pdev);
 402static int w83627hf_remove(struct platform_device *pdev);
 403
 404static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
 405static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value);
 406static void w83627hf_update_fan_div(struct w83627hf_data *data);
 407static struct w83627hf_data *w83627hf_update_device(struct device *dev);
 408static void w83627hf_init_device(struct platform_device *pdev);
 409
 410#ifdef CONFIG_PM
 411static int w83627hf_suspend(struct device *dev)
 412{
 413        struct w83627hf_data *data = w83627hf_update_device(dev);
 414
 415        mutex_lock(&data->update_lock);
 416        data->scfg1 = w83627hf_read_value(data, W83781D_REG_SCFG1);
 417        data->scfg2 = w83627hf_read_value(data, W83781D_REG_SCFG2);
 418        mutex_unlock(&data->update_lock);
 419
 420        return 0;
 421}
 422
 423static int w83627hf_resume(struct device *dev)
 424{
 425        struct w83627hf_data *data = dev_get_drvdata(dev);
 426        int i, num_temps = (data->type == w83697hf) ? 2 : 3;
 427
 428        /* Restore limits */
 429        mutex_lock(&data->update_lock);
 430        for (i = 0; i <= 8; i++) {
 431                /* skip missing sensors */
 432                if (((data->type == w83697hf) && (i == 1)) ||
 433                    ((data->type != w83627hf && data->type != w83697hf)
 434                    && (i == 5 || i == 6)))
 435                        continue;
 436                w83627hf_write_value(data, W83781D_REG_IN_MAX(i),
 437                                     data->in_max[i]);
 438                w83627hf_write_value(data, W83781D_REG_IN_MIN(i),
 439                                     data->in_min[i]);
 440        }
 441        for (i = 0; i <= 2; i++)
 442                w83627hf_write_value(data, W83627HF_REG_FAN_MIN(i),
 443                                     data->fan_min[i]);
 444        for (i = 0; i < num_temps; i++) {
 445                w83627hf_write_value(data, w83627hf_reg_temp_over[i],
 446                                     data->temp_max[i]);
 447                w83627hf_write_value(data, w83627hf_reg_temp_hyst[i],
 448                                     data->temp_max_hyst[i]);
 449        }
 450
 451        /* Fixup BIOS bugs */
 452        if (data->type == w83627thf || data->type == w83637hf ||
 453            data->type == w83687thf)
 454                w83627hf_write_value(data, W83627THF_REG_VRM_OVT_CFG,
 455                                     data->vrm_ovt);
 456        w83627hf_write_value(data, W83781D_REG_SCFG1, data->scfg1);
 457        w83627hf_write_value(data, W83781D_REG_SCFG2, data->scfg2);
 458
 459        /* Force re-reading all values */
 460        data->valid = 0;
 461        mutex_unlock(&data->update_lock);
 462
 463        return 0;
 464}
 465
 466static const struct dev_pm_ops w83627hf_dev_pm_ops = {
 467        .suspend = w83627hf_suspend,
 468        .resume = w83627hf_resume,
 469};
 470
 471#define W83627HF_DEV_PM_OPS     (&w83627hf_dev_pm_ops)
 472#else
 473#define W83627HF_DEV_PM_OPS     NULL
 474#endif /* CONFIG_PM */
 475
 476static struct platform_driver w83627hf_driver = {
 477        .driver = {
 478                .owner  = THIS_MODULE,
 479                .name   = DRVNAME,
 480                .pm     = W83627HF_DEV_PM_OPS,
 481        },
 482        .probe          = w83627hf_probe,
 483        .remove         = w83627hf_remove,
 484};
 485
 486static ssize_t
 487show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
 488{
 489        int nr = to_sensor_dev_attr(devattr)->index;
 490        struct w83627hf_data *data = w83627hf_update_device(dev);
 491        return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in[nr]));
 492}
 493static ssize_t
 494show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
 495{
 496        int nr = to_sensor_dev_attr(devattr)->index;
 497        struct w83627hf_data *data = w83627hf_update_device(dev);
 498        return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_min[nr]));
 499}
 500static ssize_t
 501show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
 502{
 503        int nr = to_sensor_dev_attr(devattr)->index;
 504        struct w83627hf_data *data = w83627hf_update_device(dev);
 505        return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_max[nr]));
 506}
 507static ssize_t
 508store_in_min(struct device *dev, struct device_attribute *devattr,
 509             const char *buf, size_t count)
 510{
 511        int nr = to_sensor_dev_attr(devattr)->index;
 512        struct w83627hf_data *data = dev_get_drvdata(dev);
 513        long val;
 514        int err;
 515
 516        err = kstrtol(buf, 10, &val);
 517        if (err)
 518                return err;
 519
 520        mutex_lock(&data->update_lock);
 521        data->in_min[nr] = IN_TO_REG(val);
 522        w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), data->in_min[nr]);
 523        mutex_unlock(&data->update_lock);
 524        return count;
 525}
 526static ssize_t
 527store_in_max(struct device *dev, struct device_attribute *devattr,
 528             const char *buf, size_t count)
 529{
 530        int nr = to_sensor_dev_attr(devattr)->index;
 531        struct w83627hf_data *data = dev_get_drvdata(dev);
 532        long val;
 533        int err;
 534
 535        err = kstrtol(buf, 10, &val);
 536        if (err)
 537                return err;
 538
 539        mutex_lock(&data->update_lock);
 540        data->in_max[nr] = IN_TO_REG(val);
 541        w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), data->in_max[nr]);
 542        mutex_unlock(&data->update_lock);
 543        return count;
 544}
 545#define sysfs_vin_decl(offset) \
 546static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,          \
 547                          show_in_input, NULL, offset);         \
 548static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO|S_IWUSR,    \
 549                          show_in_min, store_in_min, offset);   \
 550static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO|S_IWUSR,    \
 551                          show_in_max, store_in_max, offset);
 552
 553sysfs_vin_decl(1);
 554sysfs_vin_decl(2);
 555sysfs_vin_decl(3);
 556sysfs_vin_decl(4);
 557sysfs_vin_decl(5);
 558sysfs_vin_decl(6);
 559sysfs_vin_decl(7);
 560sysfs_vin_decl(8);
 561
 562/* use a different set of functions for in0 */
 563static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
 564{
 565        long in0;
 566
 567        if ((data->vrm_ovt & 0x01) &&
 568                (w83627thf == data->type || w83637hf == data->type
 569                 || w83687thf == data->type))
 570
 571                /* use VRM9 calculation */
 572                in0 = (long)((reg * 488 + 70000 + 50) / 100);
 573        else
 574                /* use VRM8 (standard) calculation */
 575                in0 = (long)IN_FROM_REG(reg);
 576
 577        return sprintf(buf,"%ld\n", in0);
 578}
 579
 580static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
 581{
 582        struct w83627hf_data *data = w83627hf_update_device(dev);
 583        return show_in_0(data, buf, data->in[0]);
 584}
 585
 586static ssize_t show_regs_in_min0(struct device *dev, struct device_attribute *attr, char *buf)
 587{
 588        struct w83627hf_data *data = w83627hf_update_device(dev);
 589        return show_in_0(data, buf, data->in_min[0]);
 590}
 591
 592static ssize_t show_regs_in_max0(struct device *dev, struct device_attribute *attr, char *buf)
 593{
 594        struct w83627hf_data *data = w83627hf_update_device(dev);
 595        return show_in_0(data, buf, data->in_max[0]);
 596}
 597
 598static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
 599        const char *buf, size_t count)
 600{
 601        struct w83627hf_data *data = dev_get_drvdata(dev);
 602        unsigned long val;
 603        int err;
 604
 605        err = kstrtoul(buf, 10, &val);
 606        if (err)
 607                return err;
 608
 609        mutex_lock(&data->update_lock);
 610        
 611        if ((data->vrm_ovt & 0x01) &&
 612                (w83627thf == data->type || w83637hf == data->type
 613                 || w83687thf == data->type))
 614
 615                /* use VRM9 calculation */
 616                data->in_min[0] =
 617                        SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
 618                                        255);
 619        else
 620                /* use VRM8 (standard) calculation */
 621                data->in_min[0] = IN_TO_REG(val);
 622
 623        w83627hf_write_value(data, W83781D_REG_IN_MIN(0), data->in_min[0]);
 624        mutex_unlock(&data->update_lock);
 625        return count;
 626}
 627
 628static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
 629        const char *buf, size_t count)
 630{
 631        struct w83627hf_data *data = dev_get_drvdata(dev);
 632        unsigned long val;
 633        int err;
 634
 635        err = kstrtoul(buf, 10, &val);
 636        if (err)
 637                return err;
 638
 639        mutex_lock(&data->update_lock);
 640
 641        if ((data->vrm_ovt & 0x01) &&
 642                (w83627thf == data->type || w83637hf == data->type
 643                 || w83687thf == data->type))
 644                
 645                /* use VRM9 calculation */
 646                data->in_max[0] =
 647                        SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
 648                                        255);
 649        else
 650                /* use VRM8 (standard) calculation */
 651                data->in_max[0] = IN_TO_REG(val);
 652
 653        w83627hf_write_value(data, W83781D_REG_IN_MAX(0), data->in_max[0]);
 654        mutex_unlock(&data->update_lock);
 655        return count;
 656}
 657
 658static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
 659static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
 660        show_regs_in_min0, store_regs_in_min0);
 661static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
 662        show_regs_in_max0, store_regs_in_max0);
 663
 664static ssize_t
 665show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
 666{
 667        int nr = to_sensor_dev_attr(devattr)->index;
 668        struct w83627hf_data *data = w83627hf_update_device(dev);
 669        return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan[nr],
 670                                (long)DIV_FROM_REG(data->fan_div[nr])));
 671}
 672static ssize_t
 673show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
 674{
 675        int nr = to_sensor_dev_attr(devattr)->index;
 676        struct w83627hf_data *data = w83627hf_update_device(dev);
 677        return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan_min[nr],
 678                                (long)DIV_FROM_REG(data->fan_div[nr])));
 679}
 680static ssize_t
 681store_fan_min(struct device *dev, struct device_attribute *devattr,
 682              const char *buf, size_t count)
 683{
 684        int nr = to_sensor_dev_attr(devattr)->index;
 685        struct w83627hf_data *data = dev_get_drvdata(dev);
 686        unsigned long val;
 687        int err;
 688
 689        err = kstrtoul(buf, 10, &val);
 690        if (err)
 691                return err;
 692
 693        mutex_lock(&data->update_lock);
 694        data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 695        w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),
 696                             data->fan_min[nr]);
 697
 698        mutex_unlock(&data->update_lock);
 699        return count;
 700}
 701#define sysfs_fan_decl(offset)  \
 702static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,                 \
 703                          show_fan_input, NULL, offset - 1);            \
 704static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,         \
 705                          show_fan_min, store_fan_min, offset - 1);
 706
 707sysfs_fan_decl(1);
 708sysfs_fan_decl(2);
 709sysfs_fan_decl(3);
 710
 711static ssize_t
 712show_temp(struct device *dev, struct device_attribute *devattr, char *buf)
 713{
 714        int nr = to_sensor_dev_attr(devattr)->index;
 715        struct w83627hf_data *data = w83627hf_update_device(dev);
 716
 717        u16 tmp = data->temp[nr];
 718        return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
 719                                          : (long) TEMP_FROM_REG(tmp));
 720}
 721
 722static ssize_t
 723show_temp_max(struct device *dev, struct device_attribute *devattr,
 724              char *buf)
 725{
 726        int nr = to_sensor_dev_attr(devattr)->index;
 727        struct w83627hf_data *data = w83627hf_update_device(dev);
 728
 729        u16 tmp = data->temp_max[nr];
 730        return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
 731                                          : (long) TEMP_FROM_REG(tmp));
 732}
 733
 734static ssize_t
 735show_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
 736                   char *buf)
 737{
 738        int nr = to_sensor_dev_attr(devattr)->index;
 739        struct w83627hf_data *data = w83627hf_update_device(dev);
 740
 741        u16 tmp = data->temp_max_hyst[nr];
 742        return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
 743                                          : (long) TEMP_FROM_REG(tmp));
 744}
 745
 746static ssize_t
 747store_temp_max(struct device *dev, struct device_attribute *devattr,
 748               const char *buf, size_t count)
 749{
 750        int nr = to_sensor_dev_attr(devattr)->index;
 751        struct w83627hf_data *data = dev_get_drvdata(dev);
 752        u16 tmp;
 753        long val;
 754        int err;
 755
 756        err = kstrtol(buf, 10, &val);
 757        if (err)
 758                return err;
 759
 760        tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
 761        mutex_lock(&data->update_lock);
 762        data->temp_max[nr] = tmp;
 763        w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);
 764        mutex_unlock(&data->update_lock);
 765        return count;
 766}
 767
 768static ssize_t
 769store_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
 770                    const char *buf, size_t count)
 771{
 772        int nr = to_sensor_dev_attr(devattr)->index;
 773        struct w83627hf_data *data = dev_get_drvdata(dev);
 774        u16 tmp;
 775        long val;
 776        int err;
 777
 778        err = kstrtol(buf, 10, &val);
 779        if (err)
 780                return err;
 781
 782        tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
 783        mutex_lock(&data->update_lock);
 784        data->temp_max_hyst[nr] = tmp;
 785        w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);
 786        mutex_unlock(&data->update_lock);
 787        return count;
 788}
 789
 790#define sysfs_temp_decl(offset) \
 791static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,                \
 792                          show_temp, NULL, offset - 1);                 \
 793static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO|S_IWUSR,          \
 794                          show_temp_max, store_temp_max, offset - 1);   \
 795static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO|S_IWUSR,     \
 796                          show_temp_max_hyst, store_temp_max_hyst, offset - 1);
 797
 798sysfs_temp_decl(1);
 799sysfs_temp_decl(2);
 800sysfs_temp_decl(3);
 801
 802static ssize_t
 803show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 804{
 805        struct w83627hf_data *data = w83627hf_update_device(dev);
 806        return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 807}
 808static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 809
 810static ssize_t
 811show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 812{
 813        struct w83627hf_data *data = dev_get_drvdata(dev);
 814        return sprintf(buf, "%ld\n", (long) data->vrm);
 815}
 816static ssize_t
 817store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 818{
 819        struct w83627hf_data *data = dev_get_drvdata(dev);
 820        unsigned long val;
 821        int err;
 822
 823        err = kstrtoul(buf, 10, &val);
 824        if (err)
 825                return err;
 826        data->vrm = val;
 827
 828        return count;
 829}
 830static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 831
 832static ssize_t
 833show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 834{
 835        struct w83627hf_data *data = w83627hf_update_device(dev);
 836        return sprintf(buf, "%ld\n", (long) data->alarms);
 837}
 838static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 839
 840static ssize_t
 841show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
 842{
 843        struct w83627hf_data *data = w83627hf_update_device(dev);
 844        int bitnr = to_sensor_dev_attr(attr)->index;
 845        return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
 846}
 847static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
 848static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
 849static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
 850static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
 851static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
 852static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
 853static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10);
 854static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
 855static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
 856static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
 857static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
 858static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
 859static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
 860static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
 861static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
 862
 863static ssize_t
 864show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
 865{
 866        struct w83627hf_data *data = w83627hf_update_device(dev);
 867        return sprintf(buf, "%ld\n",
 868                      (long)BEEP_MASK_FROM_REG(data->beep_mask));
 869}
 870
 871static ssize_t
 872store_beep_mask(struct device *dev, struct device_attribute *attr,
 873                const char *buf, size_t count)
 874{
 875        struct w83627hf_data *data = dev_get_drvdata(dev);
 876        unsigned long val;
 877        int err;
 878
 879        err = kstrtoul(buf, 10, &val);
 880        if (err)
 881                return err;
 882
 883        mutex_lock(&data->update_lock);
 884
 885        /* preserve beep enable */
 886        data->beep_mask = (data->beep_mask & 0x8000)
 887                        | BEEP_MASK_TO_REG(val);
 888        w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
 889                            data->beep_mask & 0xff);
 890        w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
 891                            ((data->beep_mask) >> 16) & 0xff);
 892        w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,
 893                            (data->beep_mask >> 8) & 0xff);
 894
 895        mutex_unlock(&data->update_lock);
 896        return count;
 897}
 898
 899static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
 900                   show_beep_mask, store_beep_mask);
 901
 902static ssize_t
 903show_beep(struct device *dev, struct device_attribute *attr, char *buf)
 904{
 905        struct w83627hf_data *data = w83627hf_update_device(dev);
 906        int bitnr = to_sensor_dev_attr(attr)->index;
 907        return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
 908}
 909
 910static ssize_t
 911store_beep(struct device *dev, struct device_attribute *attr,
 912                const char *buf, size_t count)
 913{
 914        struct w83627hf_data *data = dev_get_drvdata(dev);
 915        int bitnr = to_sensor_dev_attr(attr)->index;
 916        u8 reg;
 917        unsigned long bit;
 918        int err;
 919
 920        err = kstrtoul(buf, 10, &bit);
 921        if (err)
 922                return err;
 923
 924        if (bit & ~1)
 925                return -EINVAL;
 926
 927        mutex_lock(&data->update_lock);
 928        if (bit)
 929                data->beep_mask |= (1 << bitnr);
 930        else
 931                data->beep_mask &= ~(1 << bitnr);
 932
 933        if (bitnr < 8) {
 934                reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
 935                if (bit)
 936                        reg |= (1 << bitnr);
 937                else
 938                        reg &= ~(1 << bitnr);
 939                w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, reg);
 940        } else if (bitnr < 16) {
 941                reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
 942                if (bit)
 943                        reg |= (1 << (bitnr - 8));
 944                else
 945                        reg &= ~(1 << (bitnr - 8));
 946                w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, reg);
 947        } else {
 948                reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
 949                if (bit)
 950                        reg |= (1 << (bitnr - 16));
 951                else
 952                        reg &= ~(1 << (bitnr - 16));
 953                w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, reg);
 954        }
 955        mutex_unlock(&data->update_lock);
 956
 957        return count;
 958}
 959
 960static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
 961                        show_beep, store_beep, 0);
 962static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR,
 963                        show_beep, store_beep, 1);
 964static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR,
 965                        show_beep, store_beep, 2);
 966static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR,
 967                        show_beep, store_beep, 3);
 968static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR,
 969                        show_beep, store_beep, 8);
 970static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO | S_IWUSR,
 971                        show_beep, store_beep, 9);
 972static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO | S_IWUSR,
 973                        show_beep, store_beep, 10);
 974static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO | S_IWUSR,
 975                        show_beep, store_beep, 16);
 976static SENSOR_DEVICE_ATTR(in8_beep, S_IRUGO | S_IWUSR,
 977                        show_beep, store_beep, 17);
 978static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR,
 979                        show_beep, store_beep, 6);
 980static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR,
 981                        show_beep, store_beep, 7);
 982static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO | S_IWUSR,
 983                        show_beep, store_beep, 11);
 984static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
 985                        show_beep, store_beep, 4);
 986static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR,
 987                        show_beep, store_beep, 5);
 988static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO | S_IWUSR,
 989                        show_beep, store_beep, 13);
 990static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
 991                        show_beep, store_beep, 15);
 992
 993static ssize_t
 994show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
 995{
 996        int nr = to_sensor_dev_attr(devattr)->index;
 997        struct w83627hf_data *data = w83627hf_update_device(dev);
 998        return sprintf(buf, "%ld\n",
 999                       (long) DIV_FROM_REG(data->fan_div[nr]));
1000}
1001/*
1002 * Note: we save and restore the fan minimum here, because its value is
1003 * determined in part by the fan divisor.  This follows the principle of
1004 * least surprise; the user doesn't expect the fan minimum to change just
1005 * because the divisor changed.
1006 */
1007static ssize_t
1008store_fan_div(struct device *dev, struct device_attribute *devattr,
1009              const char *buf, size_t count)
1010{
1011        int nr = to_sensor_dev_attr(devattr)->index;
1012        struct w83627hf_data *data = dev_get_drvdata(dev);
1013        unsigned long min;
1014        u8 reg;
1015        unsigned long val;
1016        int err;
1017
1018        err = kstrtoul(buf, 10, &val);
1019        if (err)
1020                return err;
1021
1022        mutex_lock(&data->update_lock);
1023
1024        /* Save fan_min */
1025        min = FAN_FROM_REG(data->fan_min[nr],
1026                           DIV_FROM_REG(data->fan_div[nr]));
1027
1028        data->fan_div[nr] = DIV_TO_REG(val);
1029
1030        reg = (w83627hf_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
1031               & (nr==0 ? 0xcf : 0x3f))
1032            | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
1033        w83627hf_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
1034
1035        reg = (w83627hf_read_value(data, W83781D_REG_VBAT)
1036               & ~(1 << (5 + nr)))
1037            | ((data->fan_div[nr] & 0x04) << (3 + nr));
1038        w83627hf_write_value(data, W83781D_REG_VBAT, reg);
1039
1040        /* Restore fan_min */
1041        data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
1042        w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), data->fan_min[nr]);
1043
1044        mutex_unlock(&data->update_lock);
1045        return count;
1046}
1047
1048static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO|S_IWUSR,
1049                          show_fan_div, store_fan_div, 0);
1050static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO|S_IWUSR,
1051                          show_fan_div, store_fan_div, 1);
1052static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO|S_IWUSR,
1053                          show_fan_div, store_fan_div, 2);
1054
1055static ssize_t
1056show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
1057{
1058        int nr = to_sensor_dev_attr(devattr)->index;
1059        struct w83627hf_data *data = w83627hf_update_device(dev);
1060        return sprintf(buf, "%ld\n", (long) data->pwm[nr]);
1061}
1062
1063static ssize_t
1064store_pwm(struct device *dev, struct device_attribute *devattr,
1065          const char *buf, size_t count)
1066{
1067        int nr = to_sensor_dev_attr(devattr)->index;
1068        struct w83627hf_data *data = dev_get_drvdata(dev);
1069        unsigned long val;
1070        int err;
1071
1072        err = kstrtoul(buf, 10, &val);
1073        if (err)
1074                return err;
1075
1076        mutex_lock(&data->update_lock);
1077
1078        if (data->type == w83627thf) {
1079                /* bits 0-3 are reserved  in 627THF */
1080                data->pwm[nr] = PWM_TO_REG(val) & 0xf0;
1081                w83627hf_write_value(data,
1082                                     W836X7HF_REG_PWM(data->type, nr),
1083                                     data->pwm[nr] |
1084                                     (w83627hf_read_value(data,
1085                                     W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
1086        } else {
1087                data->pwm[nr] = PWM_TO_REG(val);
1088                w83627hf_write_value(data,
1089                                     W836X7HF_REG_PWM(data->type, nr),
1090                                     data->pwm[nr]);
1091        }
1092
1093        mutex_unlock(&data->update_lock);
1094        return count;
1095}
1096
1097static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0);
1098static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 1);
1099static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 2);
1100
1101static ssize_t
1102show_pwm_enable(struct device *dev, struct device_attribute *devattr, char *buf)
1103{
1104        int nr = to_sensor_dev_attr(devattr)->index;
1105        struct w83627hf_data *data = w83627hf_update_device(dev);
1106        return sprintf(buf, "%d\n", data->pwm_enable[nr]);
1107}
1108
1109static ssize_t
1110store_pwm_enable(struct device *dev, struct device_attribute *devattr,
1111          const char *buf, size_t count)
1112{
1113        int nr = to_sensor_dev_attr(devattr)->index;
1114        struct w83627hf_data *data = dev_get_drvdata(dev);
1115        u8 reg;
1116        unsigned long val;
1117        int err;
1118
1119        err = kstrtoul(buf, 10, &val);
1120        if (err)
1121                return err;
1122
1123        if (!val || val > 3)    /* modes 1, 2 and 3 are supported */
1124                return -EINVAL;
1125        mutex_lock(&data->update_lock);
1126        data->pwm_enable[nr] = val;
1127        reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
1128        reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
1129        reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
1130        w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
1131        mutex_unlock(&data->update_lock);
1132        return count;
1133}
1134
1135static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
1136                                                  store_pwm_enable, 0);
1137static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
1138                                                  store_pwm_enable, 1);
1139static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
1140                                                  store_pwm_enable, 2);
1141
1142static ssize_t
1143show_pwm_freq(struct device *dev, struct device_attribute *devattr, char *buf)
1144{
1145        int nr = to_sensor_dev_attr(devattr)->index;
1146        struct w83627hf_data *data = w83627hf_update_device(dev);
1147        if (data->type == w83627hf)
1148                return sprintf(buf, "%ld\n",
1149                        pwm_freq_from_reg_627hf(data->pwm_freq[nr]));
1150        else
1151                return sprintf(buf, "%ld\n",
1152                        pwm_freq_from_reg(data->pwm_freq[nr]));
1153}
1154
1155static ssize_t
1156store_pwm_freq(struct device *dev, struct device_attribute *devattr,
1157               const char *buf, size_t count)
1158{
1159        int nr = to_sensor_dev_attr(devattr)->index;
1160        struct w83627hf_data *data = dev_get_drvdata(dev);
1161        static const u8 mask[]={0xF8, 0x8F};
1162        unsigned long val;
1163        int err;
1164
1165        err = kstrtoul(buf, 10, &val);
1166        if (err)
1167                return err;
1168
1169        mutex_lock(&data->update_lock);
1170
1171        if (data->type == w83627hf) {
1172                data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);
1173                w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,
1174                                (data->pwm_freq[nr] << (nr*4)) |
1175                                (w83627hf_read_value(data,
1176                                W83627HF_REG_PWM_FREQ) & mask[nr]));
1177        } else {
1178                data->pwm_freq[nr] = pwm_freq_to_reg(val);
1179                w83627hf_write_value(data, W83637HF_REG_PWM_FREQ[nr],
1180                                data->pwm_freq[nr]);
1181        }
1182
1183        mutex_unlock(&data->update_lock);
1184        return count;
1185}
1186
1187static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO|S_IWUSR,
1188                          show_pwm_freq, store_pwm_freq, 0);
1189static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO|S_IWUSR,
1190                          show_pwm_freq, store_pwm_freq, 1);
1191static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO|S_IWUSR,
1192                          show_pwm_freq, store_pwm_freq, 2);
1193
1194static ssize_t
1195show_temp_type(struct device *dev, struct device_attribute *devattr,
1196               char *buf)
1197{
1198        int nr = to_sensor_dev_attr(devattr)->index;
1199        struct w83627hf_data *data = w83627hf_update_device(dev);
1200        return sprintf(buf, "%ld\n", (long) data->sens[nr]);
1201}
1202
1203static ssize_t
1204store_temp_type(struct device *dev, struct device_attribute *devattr,
1205                const char *buf, size_t count)
1206{
1207        int nr = to_sensor_dev_attr(devattr)->index;
1208        struct w83627hf_data *data = dev_get_drvdata(dev);
1209        unsigned long val;
1210        u32 tmp;
1211        int err;
1212
1213        err = kstrtoul(buf, 10, &val);
1214        if (err)
1215                return err;
1216
1217        mutex_lock(&data->update_lock);
1218
1219        switch (val) {
1220        case 1:         /* PII/Celeron diode */
1221                tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1222                w83627hf_write_value(data, W83781D_REG_SCFG1,
1223                                    tmp | BIT_SCFG1[nr]);
1224                tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
1225                w83627hf_write_value(data, W83781D_REG_SCFG2,
1226                                    tmp | BIT_SCFG2[nr]);
1227                data->sens[nr] = val;
1228                break;
1229        case 2:         /* 3904 */
1230                tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1231                w83627hf_write_value(data, W83781D_REG_SCFG1,
1232                                    tmp | BIT_SCFG1[nr]);
1233                tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
1234                w83627hf_write_value(data, W83781D_REG_SCFG2,
1235                                    tmp & ~BIT_SCFG2[nr]);
1236                data->sens[nr] = val;
1237                break;
1238        case W83781D_DEFAULT_BETA:
1239                dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
1240                         "instead\n", W83781D_DEFAULT_BETA);
1241                /* fall through */
1242        case 4:         /* thermistor */
1243                tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1244                w83627hf_write_value(data, W83781D_REG_SCFG1,
1245                                    tmp & ~BIT_SCFG1[nr]);
1246                data->sens[nr] = val;
1247                break;
1248        default:
1249                dev_err(dev,
1250                       "Invalid sensor type %ld; must be 1, 2, or 4\n",
1251                       (long) val);
1252                break;
1253        }
1254
1255        mutex_unlock(&data->update_lock);
1256        return count;
1257}
1258
1259#define sysfs_temp_type(offset) \
1260static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
1261                          show_temp_type, store_temp_type, offset - 1);
1262
1263sysfs_temp_type(1);
1264sysfs_temp_type(2);
1265sysfs_temp_type(3);
1266
1267static ssize_t
1268show_name(struct device *dev, struct device_attribute *devattr, char *buf)
1269{
1270        struct w83627hf_data *data = dev_get_drvdata(dev);
1271
1272        return sprintf(buf, "%s\n", data->name);
1273}
1274static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1275
1276static int __init w83627hf_find(int sioaddr, unsigned short *addr,
1277                                struct w83627hf_sio_data *sio_data)
1278{
1279        int err = -ENODEV;
1280        u16 val;
1281
1282        static __initconst char *const names[] = {
1283                "W83627HF",
1284                "W83627THF",
1285                "W83697HF",
1286                "W83637HF",
1287                "W83687THF",
1288        };
1289
1290        sio_data->sioaddr = sioaddr;
1291        superio_enter(sio_data);
1292        val = force_id ? force_id : superio_inb(sio_data, DEVID);
1293        switch (val) {
1294        case W627_DEVID:
1295                sio_data->type = w83627hf;
1296                break;
1297        case W627THF_DEVID:
1298                sio_data->type = w83627thf;
1299                break;
1300        case W697_DEVID:
1301                sio_data->type = w83697hf;
1302                break;
1303        case W637_DEVID:
1304                sio_data->type = w83637hf;
1305                break;
1306        case W687THF_DEVID:
1307                sio_data->type = w83687thf;
1308                break;
1309        case 0xff:      /* No device at all */
1310                goto exit;
1311        default:
1312                pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
1313                goto exit;
1314        }
1315
1316        superio_select(sio_data, W83627HF_LD_HWM);
1317        val = (superio_inb(sio_data, WINB_BASE_REG) << 8) |
1318               superio_inb(sio_data, WINB_BASE_REG + 1);
1319        *addr = val & WINB_ALIGNMENT;
1320        if (*addr == 0) {
1321                pr_warn("Base address not set, skipping\n");
1322                goto exit;
1323        }
1324
1325        val = superio_inb(sio_data, WINB_ACT_REG);
1326        if (!(val & 0x01)) {
1327                pr_warn("Enabling HWM logical device\n");
1328                superio_outb(sio_data, WINB_ACT_REG, val | 0x01);
1329        }
1330
1331        err = 0;
1332        pr_info(DRVNAME ": Found %s chip at %#x\n",
1333                names[sio_data->type], *addr);
1334
1335 exit:
1336        superio_exit(sio_data);
1337        return err;
1338}
1339
1340#define VIN_UNIT_ATTRS(_X_)     \
1341        &sensor_dev_attr_in##_X_##_input.dev_attr.attr,         \
1342        &sensor_dev_attr_in##_X_##_min.dev_attr.attr,           \
1343        &sensor_dev_attr_in##_X_##_max.dev_attr.attr,           \
1344        &sensor_dev_attr_in##_X_##_alarm.dev_attr.attr,         \
1345        &sensor_dev_attr_in##_X_##_beep.dev_attr.attr
1346
1347#define FAN_UNIT_ATTRS(_X_)     \
1348        &sensor_dev_attr_fan##_X_##_input.dev_attr.attr,        \
1349        &sensor_dev_attr_fan##_X_##_min.dev_attr.attr,          \
1350        &sensor_dev_attr_fan##_X_##_div.dev_attr.attr,          \
1351        &sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr,        \
1352        &sensor_dev_attr_fan##_X_##_beep.dev_attr.attr
1353
1354#define TEMP_UNIT_ATTRS(_X_)    \
1355        &sensor_dev_attr_temp##_X_##_input.dev_attr.attr,       \
1356        &sensor_dev_attr_temp##_X_##_max.dev_attr.attr,         \
1357        &sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr,    \
1358        &sensor_dev_attr_temp##_X_##_type.dev_attr.attr,        \
1359        &sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr,       \
1360        &sensor_dev_attr_temp##_X_##_beep.dev_attr.attr
1361
1362static struct attribute *w83627hf_attributes[] = {
1363        &dev_attr_in0_input.attr,
1364        &dev_attr_in0_min.attr,
1365        &dev_attr_in0_max.attr,
1366        &sensor_dev_attr_in0_alarm.dev_attr.attr,
1367        &sensor_dev_attr_in0_beep.dev_attr.attr,
1368        VIN_UNIT_ATTRS(2),
1369        VIN_UNIT_ATTRS(3),
1370        VIN_UNIT_ATTRS(4),
1371        VIN_UNIT_ATTRS(7),
1372        VIN_UNIT_ATTRS(8),
1373
1374        FAN_UNIT_ATTRS(1),
1375        FAN_UNIT_ATTRS(2),
1376
1377        TEMP_UNIT_ATTRS(1),
1378        TEMP_UNIT_ATTRS(2),
1379
1380        &dev_attr_alarms.attr,
1381        &sensor_dev_attr_beep_enable.dev_attr.attr,
1382        &dev_attr_beep_mask.attr,
1383
1384        &sensor_dev_attr_pwm1.dev_attr.attr,
1385        &sensor_dev_attr_pwm2.dev_attr.attr,
1386        &dev_attr_name.attr,
1387        NULL
1388};
1389
1390static const struct attribute_group w83627hf_group = {
1391        .attrs = w83627hf_attributes,
1392};
1393
1394static struct attribute *w83627hf_attributes_opt[] = {
1395        VIN_UNIT_ATTRS(1),
1396        VIN_UNIT_ATTRS(5),
1397        VIN_UNIT_ATTRS(6),
1398
1399        FAN_UNIT_ATTRS(3),
1400        TEMP_UNIT_ATTRS(3),
1401        &sensor_dev_attr_pwm3.dev_attr.attr,
1402
1403        &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1404        &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1405        &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1406
1407        &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1408        &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1409        &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1410
1411        NULL
1412};
1413
1414static const struct attribute_group w83627hf_group_opt = {
1415        .attrs = w83627hf_attributes_opt,
1416};
1417
1418static int w83627hf_probe(struct platform_device *pdev)
1419{
1420        struct device *dev = &pdev->dev;
1421        struct w83627hf_sio_data *sio_data = dev->platform_data;
1422        struct w83627hf_data *data;
1423        struct resource *res;
1424        int err, i;
1425
1426        static const char *names[] = {
1427                "w83627hf",
1428                "w83627thf",
1429                "w83697hf",
1430                "w83637hf",
1431                "w83687thf",
1432        };
1433
1434        res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1435        if (!devm_request_region(dev, res->start, WINB_REGION_SIZE, DRVNAME)) {
1436                dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
1437                        (unsigned long)res->start,
1438                        (unsigned long)(res->start + WINB_REGION_SIZE - 1));
1439                return -EBUSY;
1440        }
1441
1442        data = devm_kzalloc(dev, sizeof(struct w83627hf_data), GFP_KERNEL);
1443        if (!data)
1444                return -ENOMEM;
1445
1446        data->addr = res->start;
1447        data->type = sio_data->type;
1448        data->name = names[sio_data->type];
1449        mutex_init(&data->lock);
1450        mutex_init(&data->update_lock);
1451        platform_set_drvdata(pdev, data);
1452
1453        /* Initialize the chip */
1454        w83627hf_init_device(pdev);
1455
1456        /* A few vars need to be filled upon startup */
1457        for (i = 0; i <= 2; i++)
1458                data->fan_min[i] = w83627hf_read_value(
1459                                        data, W83627HF_REG_FAN_MIN(i));
1460        w83627hf_update_fan_div(data);
1461
1462        /* Register common device attributes */
1463        err = sysfs_create_group(&dev->kobj, &w83627hf_group);
1464        if (err)
1465                return err;
1466
1467        /* Register chip-specific device attributes */
1468        if (data->type == w83627hf || data->type == w83697hf)
1469                if ((err = device_create_file(dev,
1470                                &sensor_dev_attr_in5_input.dev_attr))
1471                 || (err = device_create_file(dev,
1472                                &sensor_dev_attr_in5_min.dev_attr))
1473                 || (err = device_create_file(dev,
1474                                &sensor_dev_attr_in5_max.dev_attr))
1475                 || (err = device_create_file(dev,
1476                                &sensor_dev_attr_in5_alarm.dev_attr))
1477                 || (err = device_create_file(dev,
1478                                &sensor_dev_attr_in5_beep.dev_attr))
1479                 || (err = device_create_file(dev,
1480                                &sensor_dev_attr_in6_input.dev_attr))
1481                 || (err = device_create_file(dev,
1482                                &sensor_dev_attr_in6_min.dev_attr))
1483                 || (err = device_create_file(dev,
1484                                &sensor_dev_attr_in6_max.dev_attr))
1485                 || (err = device_create_file(dev,
1486                                &sensor_dev_attr_in6_alarm.dev_attr))
1487                 || (err = device_create_file(dev,
1488                                &sensor_dev_attr_in6_beep.dev_attr))
1489                 || (err = device_create_file(dev,
1490                                &sensor_dev_attr_pwm1_freq.dev_attr))
1491                 || (err = device_create_file(dev,
1492                                &sensor_dev_attr_pwm2_freq.dev_attr)))
1493                        goto error;
1494
1495        if (data->type != w83697hf)
1496                if ((err = device_create_file(dev,
1497                                &sensor_dev_attr_in1_input.dev_attr))
1498                 || (err = device_create_file(dev,
1499                                &sensor_dev_attr_in1_min.dev_attr))
1500                 || (err = device_create_file(dev,
1501                                &sensor_dev_attr_in1_max.dev_attr))
1502                 || (err = device_create_file(dev,
1503                                &sensor_dev_attr_in1_alarm.dev_attr))
1504                 || (err = device_create_file(dev,
1505                                &sensor_dev_attr_in1_beep.dev_attr))
1506                 || (err = device_create_file(dev,
1507                                &sensor_dev_attr_fan3_input.dev_attr))
1508                 || (err = device_create_file(dev,
1509                                &sensor_dev_attr_fan3_min.dev_attr))
1510                 || (err = device_create_file(dev,
1511                                &sensor_dev_attr_fan3_div.dev_attr))
1512                 || (err = device_create_file(dev,
1513                                &sensor_dev_attr_fan3_alarm.dev_attr))
1514                 || (err = device_create_file(dev,
1515                                &sensor_dev_attr_fan3_beep.dev_attr))
1516                 || (err = device_create_file(dev,
1517                                &sensor_dev_attr_temp3_input.dev_attr))
1518                 || (err = device_create_file(dev,
1519                                &sensor_dev_attr_temp3_max.dev_attr))
1520                 || (err = device_create_file(dev,
1521                                &sensor_dev_attr_temp3_max_hyst.dev_attr))
1522                 || (err = device_create_file(dev,
1523                                &sensor_dev_attr_temp3_alarm.dev_attr))
1524                 || (err = device_create_file(dev,
1525                                &sensor_dev_attr_temp3_beep.dev_attr))
1526                 || (err = device_create_file(dev,
1527                                &sensor_dev_attr_temp3_type.dev_attr)))
1528                        goto error;
1529
1530        if (data->type != w83697hf && data->vid != 0xff) {
1531                /* Convert VID to voltage based on VRM */
1532                data->vrm = vid_which_vrm();
1533
1534                if ((err = device_create_file(dev, &dev_attr_cpu0_vid))
1535                 || (err = device_create_file(dev, &dev_attr_vrm)))
1536                        goto error;
1537        }
1538
1539        if (data->type == w83627thf || data->type == w83637hf
1540            || data->type == w83687thf) {
1541                err = device_create_file(dev, &sensor_dev_attr_pwm3.dev_attr);
1542                if (err)
1543                        goto error;
1544        }
1545
1546        if (data->type == w83637hf || data->type == w83687thf)
1547                if ((err = device_create_file(dev,
1548                                &sensor_dev_attr_pwm1_freq.dev_attr))
1549                 || (err = device_create_file(dev,
1550                                &sensor_dev_attr_pwm2_freq.dev_attr))
1551                 || (err = device_create_file(dev,
1552                                &sensor_dev_attr_pwm3_freq.dev_attr)))
1553                        goto error;
1554
1555        if (data->type != w83627hf)
1556                if ((err = device_create_file(dev,
1557                                &sensor_dev_attr_pwm1_enable.dev_attr))
1558                 || (err = device_create_file(dev,
1559                                &sensor_dev_attr_pwm2_enable.dev_attr)))
1560                        goto error;
1561
1562        if (data->type == w83627thf || data->type == w83637hf
1563            || data->type == w83687thf) {
1564                err = device_create_file(dev,
1565                                         &sensor_dev_attr_pwm3_enable.dev_attr);
1566                if (err)
1567                        goto error;
1568        }
1569
1570        data->hwmon_dev = hwmon_device_register(dev);
1571        if (IS_ERR(data->hwmon_dev)) {
1572                err = PTR_ERR(data->hwmon_dev);
1573                goto error;
1574        }
1575
1576        return 0;
1577
1578 error:
1579        sysfs_remove_group(&dev->kobj, &w83627hf_group);
1580        sysfs_remove_group(&dev->kobj, &w83627hf_group_opt);
1581        return err;
1582}
1583
1584static int w83627hf_remove(struct platform_device *pdev)
1585{
1586        struct w83627hf_data *data = platform_get_drvdata(pdev);
1587
1588        hwmon_device_unregister(data->hwmon_dev);
1589
1590        sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group);
1591        sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group_opt);
1592
1593        return 0;
1594}
1595
1596
1597/* Registers 0x50-0x5f are banked */
1598static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
1599{
1600        if ((reg & 0x00f0) == 0x50) {
1601                outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
1602                outb_p(reg >> 8, data->addr + W83781D_DATA_REG_OFFSET);
1603        }
1604}
1605
1606/* Not strictly necessary, but play it safe for now */
1607static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
1608{
1609        if (reg & 0xff00) {
1610                outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
1611                outb_p(0, data->addr + W83781D_DATA_REG_OFFSET);
1612        }
1613}
1614
1615static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)
1616{
1617        int res, word_sized;
1618
1619        mutex_lock(&data->lock);
1620        word_sized = (((reg & 0xff00) == 0x100)
1621                   || ((reg & 0xff00) == 0x200))
1622                  && (((reg & 0x00ff) == 0x50)
1623                   || ((reg & 0x00ff) == 0x53)
1624                   || ((reg & 0x00ff) == 0x55));
1625        w83627hf_set_bank(data, reg);
1626        outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
1627        res = inb_p(data->addr + W83781D_DATA_REG_OFFSET);
1628        if (word_sized) {
1629                outb_p((reg & 0xff) + 1,
1630                       data->addr + W83781D_ADDR_REG_OFFSET);
1631                res =
1632                    (res << 8) + inb_p(data->addr +
1633                                       W83781D_DATA_REG_OFFSET);
1634        }
1635        w83627hf_reset_bank(data, reg);
1636        mutex_unlock(&data->lock);
1637        return res;
1638}
1639
1640static int w83627thf_read_gpio5(struct platform_device *pdev)
1641{
1642        struct w83627hf_sio_data *sio_data = pdev->dev.platform_data;
1643        int res = 0xff, sel;
1644
1645        superio_enter(sio_data);
1646        superio_select(sio_data, W83627HF_LD_GPIO5);
1647
1648        /* Make sure these GPIO pins are enabled */
1649        if (!(superio_inb(sio_data, W83627THF_GPIO5_EN) & (1<<3))) {
1650                dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n");
1651                goto exit;
1652        }
1653
1654        /*
1655         * Make sure the pins are configured for input
1656         * There must be at least five (VRM 9), and possibly 6 (VRM 10)
1657         */
1658        sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f;
1659        if ((sel & 0x1f) != 0x1f) {
1660                dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
1661                        "function\n");
1662                goto exit;
1663        }
1664
1665        dev_info(&pdev->dev, "Reading VID from GPIO5\n");
1666        res = superio_inb(sio_data, W83627THF_GPIO5_DR) & sel;
1667
1668exit:
1669        superio_exit(sio_data);
1670        return res;
1671}
1672
1673static int w83687thf_read_vid(struct platform_device *pdev)
1674{
1675        struct w83627hf_sio_data *sio_data = pdev->dev.platform_data;
1676        int res = 0xff;
1677
1678        superio_enter(sio_data);
1679        superio_select(sio_data, W83627HF_LD_HWM);
1680
1681        /* Make sure these GPIO pins are enabled */
1682        if (!(superio_inb(sio_data, W83687THF_VID_EN) & (1 << 2))) {
1683                dev_dbg(&pdev->dev, "VID disabled, no VID function\n");
1684                goto exit;
1685        }
1686
1687        /* Make sure the pins are configured for input */
1688        if (!(superio_inb(sio_data, W83687THF_VID_CFG) & (1 << 4))) {
1689                dev_dbg(&pdev->dev, "VID configured as output, "
1690                        "no VID function\n");
1691                goto exit;
1692        }
1693
1694        res = superio_inb(sio_data, W83687THF_VID_DATA) & 0x3f;
1695
1696exit:
1697        superio_exit(sio_data);
1698        return res;
1699}
1700
1701static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value)
1702{
1703        int word_sized;
1704
1705        mutex_lock(&data->lock);
1706        word_sized = (((reg & 0xff00) == 0x100)
1707                   || ((reg & 0xff00) == 0x200))
1708                  && (((reg & 0x00ff) == 0x53)
1709                   || ((reg & 0x00ff) == 0x55));
1710        w83627hf_set_bank(data, reg);
1711        outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
1712        if (word_sized) {
1713                outb_p(value >> 8,
1714                       data->addr + W83781D_DATA_REG_OFFSET);
1715                outb_p((reg & 0xff) + 1,
1716                       data->addr + W83781D_ADDR_REG_OFFSET);
1717        }
1718        outb_p(value & 0xff,
1719               data->addr + W83781D_DATA_REG_OFFSET);
1720        w83627hf_reset_bank(data, reg);
1721        mutex_unlock(&data->lock);
1722        return 0;
1723}
1724
1725static void w83627hf_init_device(struct platform_device *pdev)
1726{
1727        struct w83627hf_data *data = platform_get_drvdata(pdev);
1728        int i;
1729        enum chips type = data->type;
1730        u8 tmp;
1731
1732        /* Minimize conflicts with other winbond i2c-only clients...  */
1733        /* disable i2c subclients... how to disable main i2c client?? */
1734        /* force i2c address to relatively uncommon address */
1735        if (type == w83627hf) {
1736                w83627hf_write_value(data, W83781D_REG_I2C_SUBADDR, 0x89);
1737                w83627hf_write_value(data, W83781D_REG_I2C_ADDR, force_i2c);
1738        }
1739
1740        /* Read VID only once */
1741        if (type == w83627hf || type == w83637hf) {
1742                int lo = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
1743                int hi = w83627hf_read_value(data, W83781D_REG_CHIPID);
1744                data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
1745        } else if (type == w83627thf) {
1746                data->vid = w83627thf_read_gpio5(pdev);
1747        } else if (type == w83687thf) {
1748                data->vid = w83687thf_read_vid(pdev);
1749        }
1750
1751        /* Read VRM & OVT Config only once */
1752        if (type == w83627thf || type == w83637hf || type == w83687thf) {
1753                data->vrm_ovt = 
1754                        w83627hf_read_value(data, W83627THF_REG_VRM_OVT_CFG);
1755        }
1756
1757        tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1758        for (i = 1; i <= 3; i++) {
1759                if (!(tmp & BIT_SCFG1[i - 1])) {
1760                        data->sens[i - 1] = 4;
1761                } else {
1762                        if (w83627hf_read_value
1763                            (data,
1764                             W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
1765                                data->sens[i - 1] = 1;
1766                        else
1767                                data->sens[i - 1] = 2;
1768                }
1769                if ((type == w83697hf) && (i == 2))
1770                        break;
1771        }
1772
1773        if(init) {
1774                /* Enable temp2 */
1775                tmp = w83627hf_read_value(data, W83627HF_REG_TEMP2_CONFIG);
1776                if (tmp & 0x01) {
1777                        dev_warn(&pdev->dev, "Enabling temp2, readings "
1778                                 "might not make sense\n");
1779                        w83627hf_write_value(data, W83627HF_REG_TEMP2_CONFIG,
1780                                tmp & 0xfe);
1781                }
1782
1783                /* Enable temp3 */
1784                if (type != w83697hf) {
1785                        tmp = w83627hf_read_value(data,
1786                                W83627HF_REG_TEMP3_CONFIG);
1787                        if (tmp & 0x01) {
1788                                dev_warn(&pdev->dev, "Enabling temp3, "
1789                                         "readings might not make sense\n");
1790                                w83627hf_write_value(data,
1791                                        W83627HF_REG_TEMP3_CONFIG, tmp & 0xfe);
1792                        }
1793                }
1794        }
1795
1796        /* Start monitoring */
1797        w83627hf_write_value(data, W83781D_REG_CONFIG,
1798                            (w83627hf_read_value(data,
1799                                                W83781D_REG_CONFIG) & 0xf7)
1800                            | 0x01);
1801
1802        /* Enable VBAT monitoring if needed */
1803        tmp = w83627hf_read_value(data, W83781D_REG_VBAT);
1804        if (!(tmp & 0x01))
1805                w83627hf_write_value(data, W83781D_REG_VBAT, tmp | 0x01);
1806}
1807
1808static void w83627hf_update_fan_div(struct w83627hf_data *data)
1809{
1810        int reg;
1811
1812        reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
1813        data->fan_div[0] = (reg >> 4) & 0x03;
1814        data->fan_div[1] = (reg >> 6) & 0x03;
1815        if (data->type != w83697hf) {
1816                data->fan_div[2] = (w83627hf_read_value(data,
1817                                       W83781D_REG_PIN) >> 6) & 0x03;
1818        }
1819        reg = w83627hf_read_value(data, W83781D_REG_VBAT);
1820        data->fan_div[0] |= (reg >> 3) & 0x04;
1821        data->fan_div[1] |= (reg >> 4) & 0x04;
1822        if (data->type != w83697hf)
1823                data->fan_div[2] |= (reg >> 5) & 0x04;
1824}
1825
1826static struct w83627hf_data *w83627hf_update_device(struct device *dev)
1827{
1828        struct w83627hf_data *data = dev_get_drvdata(dev);
1829        int i, num_temps = (data->type == w83697hf) ? 2 : 3;
1830        int num_pwms = (data->type == w83697hf) ? 2 : 3;
1831
1832        mutex_lock(&data->update_lock);
1833
1834        if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1835            || !data->valid) {
1836                for (i = 0; i <= 8; i++) {
1837                        /* skip missing sensors */
1838                        if (((data->type == w83697hf) && (i == 1)) ||
1839                            ((data->type != w83627hf && data->type != w83697hf)
1840                            && (i == 5 || i == 6)))
1841                                continue;
1842                        data->in[i] =
1843                            w83627hf_read_value(data, W83781D_REG_IN(i));
1844                        data->in_min[i] =
1845                            w83627hf_read_value(data,
1846                                               W83781D_REG_IN_MIN(i));
1847                        data->in_max[i] =
1848                            w83627hf_read_value(data,
1849                                               W83781D_REG_IN_MAX(i));
1850                }
1851                for (i = 0; i <= 2; i++) {
1852                        data->fan[i] =
1853                            w83627hf_read_value(data, W83627HF_REG_FAN(i));
1854                        data->fan_min[i] =
1855                            w83627hf_read_value(data,
1856                                               W83627HF_REG_FAN_MIN(i));
1857                }
1858                for (i = 0; i <= 2; i++) {
1859                        u8 tmp = w83627hf_read_value(data,
1860                                W836X7HF_REG_PWM(data->type, i));
1861                        /* bits 0-3 are reserved  in 627THF */
1862                        if (data->type == w83627thf)
1863                                tmp &= 0xf0;
1864                        data->pwm[i] = tmp;
1865                        if (i == 1 &&
1866                            (data->type == w83627hf || data->type == w83697hf))
1867                                break;
1868                }
1869                if (data->type == w83627hf) {
1870                                u8 tmp = w83627hf_read_value(data,
1871                                                W83627HF_REG_PWM_FREQ);
1872                                data->pwm_freq[0] = tmp & 0x07;
1873                                data->pwm_freq[1] = (tmp >> 4) & 0x07;
1874                } else if (data->type != w83627thf) {
1875                        for (i = 1; i <= 3; i++) {
1876                                data->pwm_freq[i - 1] =
1877                                        w83627hf_read_value(data,
1878                                                W83637HF_REG_PWM_FREQ[i - 1]);
1879                                if (i == 2 && (data->type == w83697hf))
1880                                        break;
1881                        }
1882                }
1883                if (data->type != w83627hf) {
1884                        for (i = 0; i < num_pwms; i++) {
1885                                u8 tmp = w83627hf_read_value(data,
1886                                        W83627THF_REG_PWM_ENABLE[i]);
1887                                data->pwm_enable[i] =
1888                                        ((tmp >> W83627THF_PWM_ENABLE_SHIFT[i])
1889                                        & 0x03) + 1;
1890                        }
1891                }
1892                for (i = 0; i < num_temps; i++) {
1893                        data->temp[i] = w83627hf_read_value(
1894                                                data, w83627hf_reg_temp[i]);
1895                        data->temp_max[i] = w83627hf_read_value(
1896                                                data, w83627hf_reg_temp_over[i]);
1897                        data->temp_max_hyst[i] = w83627hf_read_value(
1898                                                data, w83627hf_reg_temp_hyst[i]);
1899                }
1900
1901                w83627hf_update_fan_div(data);
1902
1903                data->alarms =
1904                    w83627hf_read_value(data, W83781D_REG_ALARM1) |
1905                    (w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
1906                    (w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
1907                i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
1908                data->beep_mask = (i << 8) |
1909                    w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
1910                    w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
1911                data->last_updated = jiffies;
1912                data->valid = 1;
1913        }
1914
1915        mutex_unlock(&data->update_lock);
1916
1917        return data;
1918}
1919
1920static int __init w83627hf_device_add(unsigned short address,
1921                                      const struct w83627hf_sio_data *sio_data)
1922{
1923        struct resource res = {
1924                .start  = address + WINB_REGION_OFFSET,
1925                .end    = address + WINB_REGION_OFFSET + WINB_REGION_SIZE - 1,
1926                .name   = DRVNAME,
1927                .flags  = IORESOURCE_IO,
1928        };
1929        int err;
1930
1931        err = acpi_check_resource_conflict(&res);
1932        if (err)
1933                goto exit;
1934
1935        pdev = platform_device_alloc(DRVNAME, address);
1936        if (!pdev) {
1937                err = -ENOMEM;
1938                pr_err("Device allocation failed\n");
1939                goto exit;
1940        }
1941
1942        err = platform_device_add_resources(pdev, &res, 1);
1943        if (err) {
1944                pr_err("Device resource addition failed (%d)\n", err);
1945                goto exit_device_put;
1946        }
1947
1948        err = platform_device_add_data(pdev, sio_data,
1949                                       sizeof(struct w83627hf_sio_data));
1950        if (err) {
1951                pr_err("Platform data allocation failed\n");
1952                goto exit_device_put;
1953        }
1954
1955        err = platform_device_add(pdev);
1956        if (err) {
1957                pr_err("Device addition failed (%d)\n", err);
1958                goto exit_device_put;
1959        }
1960
1961        return 0;
1962
1963exit_device_put:
1964        platform_device_put(pdev);
1965exit:
1966        return err;
1967}
1968
1969static int __init sensors_w83627hf_init(void)
1970{
1971        int err;
1972        unsigned short address;
1973        struct w83627hf_sio_data sio_data;
1974
1975        if (w83627hf_find(0x2e, &address, &sio_data)
1976         && w83627hf_find(0x4e, &address, &sio_data))
1977                return -ENODEV;
1978
1979        err = platform_driver_register(&w83627hf_driver);
1980        if (err)
1981                goto exit;
1982
1983        /* Sets global pdev as a side effect */
1984        err = w83627hf_device_add(address, &sio_data);
1985        if (err)
1986                goto exit_driver;
1987
1988        return 0;
1989
1990exit_driver:
1991        platform_driver_unregister(&w83627hf_driver);
1992exit:
1993        return err;
1994}
1995
1996static void __exit sensors_w83627hf_exit(void)
1997{
1998        platform_device_unregister(pdev);
1999        platform_driver_unregister(&w83627hf_driver);
2000}
2001
2002MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
2003              "Philip Edelbrock <phil@netroedge.com>, "
2004              "and Mark Studebaker <mdsxyz123@yahoo.com>");
2005MODULE_DESCRIPTION("W83627HF driver");
2006MODULE_LICENSE("GPL");
2007
2008module_init(sensors_w83627hf_init);
2009module_exit(sensors_w83627hf_exit);
2010
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