drivers/i2c/chips/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-sensor.h>
  46 #include <linux/i2c-vid.h>
  47 #include <asm/io.h>
  48 #include "lm75.h"
  49
  50 static u16 force_addr;
  51 module_param(force_addr, ushort, 0);
  52 MODULE_PARM_DESC(force_addr,
  53                  "Initialize the base address of the sensors");
  54 static u8 force_i2c = 0x1f;
  55 module_param(force_i2c, byte, 0);
  56 MODULE_PARM_DESC(force_i2c,
  57                  "Initialize the i2c address of the sensors");
  58
  59 /* Addresses to scan */
  60 static unsigned short normal_i2c[] = { I2C_CLIENT_END };
  61 static unsigned int normal_isa[] = { 0, I2C_CLIENT_ISA_END };
  62
  63 /* Insmod parameters */
  64 SENSORS_INSMOD_4(w83627hf, w83627thf, w83697hf, w83637hf);
  65
  66 static int init = 1;
  67 module_param(init, bool, 0);
  68 MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
  69
  70 /* modified from kernel/include/traps.c */
  71 static int REG;         /* The register to read/write */
  72 #define DEV     0x07    /* Register: Logical device select */
  73 static int VAL;         /* The value to read/write */
  74
  75 /* logical device numbers for superio_select (below) */
  76 #define W83627HF_LD_FDC         0x00
  77 #define W83627HF_LD_PRT         0x01
  78 #define W83627HF_LD_UART1       0x02
  79 #define W83627HF_LD_UART2       0x03
  80 #define W83627HF_LD_KBC         0x05
  81 #define W83627HF_LD_CIR         0x06 /* w83627hf only */
  82 #define W83627HF_LD_GAME        0x07
  83 #define W83627HF_LD_MIDI        0x07
  84 #define W83627HF_LD_GPIO1       0x07
  85 #define W83627HF_LD_GPIO5       0x07 /* w83627thf only */
  86 #define W83627HF_LD_GPIO2       0x08
  87 #define W83627HF_LD_GPIO3       0x09
  88 #define W83627HF_LD_GPIO4       0x09 /* w83627thf only */
  89 #define W83627HF_LD_ACPI        0x0a
  90 #define W83627HF_LD_HWM         0x0b
  91
  92 #define DEVID   0x20    /* Register: Device ID */
  93
  94 #define W83627THF_GPIO5_EN      0x30 /* w83627thf only */
  95 #define W83627THF_GPIO5_IOSR    0xf3 /* w83627thf only */
  96 #define W83627THF_GPIO5_DR      0xf4 /* w83627thf only */
  97
  98 static inline void
  99 superio_outb(int reg, int val)
 100 {
 101         outb(reg, REG);
 102         outb(val, VAL);
 103 }
 104
 105 static inline int
 106 superio_inb(int reg)
 107 {
 108         outb(reg, REG);
 109         return inb(VAL);
 110 }
 111
 112 static inline void
 113 superio_select(int ld)
 114 {
 115         outb(DEV, REG);
 116         outb(ld, VAL);
 117 }
 118
 119 static inline void
 120 superio_enter(void)
 121 {
 122         outb(0x87, REG);
 123         outb(0x87, REG);
 124 }
 125
 126 static inline void
 127 superio_exit(void)
 128 {
 129         outb(0xAA, REG);
 130 }
 131
 132 #define W627_DEVID 0x52
 133 #define W627THF_DEVID 0x82
 134 #define W697_DEVID 0x60
 135 #define W637_DEVID 0x70
 136 #define WINB_ACT_REG 0x30
 137 #define WINB_BASE_REG 0x60
 138 /* Constants specified below */
 139
 140 /* Length of ISA address segment */
 141 #define WINB_EXTENT 8
 142
 143 /* Where are the ISA address/data registers relative to the base address */
 144 #define W83781D_ADDR_REG_OFFSET 5
 145 #define W83781D_DATA_REG_OFFSET 6
 146
 147 /* The W83781D registers */
 148 /* The W83782D registers for nr=7,8 are in bank 5 */
 149 #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
 150                                            (0x554 + (((nr) - 7) * 2)))
 151 #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
 152                                            (0x555 + (((nr) - 7) * 2)))
 153 #define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
 154                                            (0x550 + (nr) - 7))
 155
 156 #define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
 157 #define W83781D_REG_FAN(nr) (0x27 + (nr))
 158
 159 #define W83781D_REG_TEMP2_CONFIG 0x152
 160 #define W83781D_REG_TEMP3_CONFIG 0x252
 161 #define W83781D_REG_TEMP(nr)            ((nr == 3) ? (0x0250) : \
 162                                         ((nr == 2) ? (0x0150) : \
 163                                                      (0x27)))
 164 #define W83781D_REG_TEMP_HYST(nr)       ((nr == 3) ? (0x253) : \
 165                                         ((nr == 2) ? (0x153) : \
 166                                                      (0x3A)))
 167 #define W83781D_REG_TEMP_OVER(nr)       ((nr == 3) ? (0x255) : \
 168                                         ((nr == 2) ? (0x155) : \
 169                                                      (0x39)))
 170
 171 #define W83781D_REG_BANK 0x4E
 172
 173 #define W83781D_REG_CONFIG 0x40
 174 #define W83781D_REG_ALARM1 0x41
 175 #define W83781D_REG_ALARM2 0x42
 176 #define W83781D_REG_ALARM3 0x450
 177
 178 #define W83781D_REG_IRQ 0x4C
 179 #define W83781D_REG_BEEP_CONFIG 0x4D
 180 #define W83781D_REG_BEEP_INTS1 0x56
 181 #define W83781D_REG_BEEP_INTS2 0x57
 182 #define W83781D_REG_BEEP_INTS3 0x453
 183
 184 #define W83781D_REG_VID_FANDIV 0x47
 185
 186 #define W83781D_REG_CHIPID 0x49
 187 #define W83781D_REG_WCHIPID 0x58
 188 #define W83781D_REG_CHIPMAN 0x4F
 189 #define W83781D_REG_PIN 0x4B
 190
 191 #define W83781D_REG_VBAT 0x5D
 192
 193 #define W83627HF_REG_PWM1 0x5A
 194 #define W83627HF_REG_PWM2 0x5B
 195 #define W83627HF_REG_PWMCLK12 0x5C
 196
 197 #define W83627THF_REG_PWM1              0x01    /* 697HF and 637HF too */
 198 #define W83627THF_REG_PWM2              0x03    /* 697HF and 637HF too */
 199 #define W83627THF_REG_PWM3              0x11    /* 637HF too */
 200
 201 #define W83627THF_REG_VRM_OVT_CFG       0x18    /* 637HF too */
 202
 203 static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
 204 static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
 205                              W83627THF_REG_PWM3 };
 206 #define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
 207                                      regpwm_627hf[(nr) - 1] : regpwm[(nr) - 1])
 208
 209 #define W83781D_REG_I2C_ADDR 0x48
 210 #define W83781D_REG_I2C_SUBADDR 0x4A
 211
 212 /* Sensor selection */
 213 #define W83781D_REG_SCFG1 0x5D
 214 static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
 215 #define W83781D_REG_SCFG2 0x59
 216 static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
 217 #define W83781D_DEFAULT_BETA 3435
 218
 219 /* Conversions. Limit checking is only done on the TO_REG
 220    variants. Note that you should be a bit careful with which arguments
 221    these macros are called: arguments may be evaluated more than once.
 222    Fixing this is just not worth it. */
 223 #define IN_TO_REG(val)  (SENSORS_LIMIT((((val) + 8)/16),0,255))
 224 #define IN_FROM_REG(val) ((val) * 16)
 225
 226 static inline u8 FAN_TO_REG(long rpm, int div)
 227 {
 228         if (rpm == 0)
 229                 return 255;
 230         rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 231         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
 232                              254);
 233 }
 234
 235 #define TEMP_MIN (-128000)
 236 #define TEMP_MAX ( 127000)
 237
 238 /* TEMP: 0.001C/bit (-128C to +127C)
 239    REG: 1C/bit, two's complement */
 240 static u8 TEMP_TO_REG(int temp)
 241 {
 242         int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
 243         ntemp += (ntemp<0 ? -500 : 500);
 244         return (u8)(ntemp / 1000);
 245 }
 246
 247 static int TEMP_FROM_REG(u8 reg)
 248 {
 249         return (s8)reg * 1000;
 250 }
 251
 252 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
 253
 254 #define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
 255
 256 #define BEEP_MASK_FROM_REG(val)          (val)
 257 #define BEEP_MASK_TO_REG(val)           ((val) & 0xffffff)
 258 #define BEEP_ENABLE_TO_REG(val)         ((val)?1:0)
 259 #define BEEP_ENABLE_FROM_REG(val)       ((val)?1:0)
 260
 261 #define DIV_FROM_REG(val) (1 << (val))
 262
 263 static inline u8 DIV_TO_REG(long val)
 264 {
 265         int i;
 266         val = SENSORS_LIMIT(val, 1, 128) >> 1;
 267         for (i = 0; i < 7; i++) {
 268                 if (val == 0)
 269                         break;
 270                 val >>= 1;
 271         }
 272         return ((u8) i);
 273 }
 274
 275 /* For each registered chip, we need to keep some data in memory. That
 276    data is pointed to by w83627hf_list[NR]->data. The structure itself is
 277    dynamically allocated, at the same time when a new client is allocated. */
 278 struct w83627hf_data {
 279         struct i2c_client client;
 280         struct semaphore lock;
 281         enum chips type;
 282
 283         struct semaphore update_lock;
 284         char valid;             /* !=0 if following fields are valid */
 285         unsigned long last_updated;     /* In jiffies */
 286
 287         struct i2c_client *lm75;        /* for secondary I2C addresses */
 288         /* pointer to array of 2 subclients */
 289
 290         u8 in[9];               /* Register value */
 291         u8 in_max[9];           /* Register value */
 292         u8 in_min[9];           /* Register value */
 293         u8 fan[3];              /* Register value */
 294         u8 fan_min[3];          /* Register value */
 295         u8 temp;
 296         u8 temp_max;            /* Register value */
 297         u8 temp_max_hyst;       /* Register value */
 298         u16 temp_add[2];        /* Register value */
 299         u16 temp_max_add[2];    /* Register value */
 300         u16 temp_max_hyst_add[2]; /* Register value */
 301         u8 fan_div[3];          /* Register encoding, shifted right */
 302         u8 vid;                 /* Register encoding, combined */
 303         u32 alarms;             /* Register encoding, combined */
 304         u32 beep_mask;          /* Register encoding, combined */
 305         u8 beep_enable;         /* Boolean */
 306         u8 pwm[3];              /* Register value */
 307         u16 sens[3];            /* 782D/783S only.
 308                                    1 = pentium diode; 2 = 3904 diode;
 309                                    3000-5000 = thermistor beta.
 310                                    Default = 3435.
 311                                    Other Betas unimplemented */
 312         u8 vrm;
 313         u8 vrm_ovt;             /* Register value, 627thf & 637hf only */
 314 };
 315
 316
 317 static int w83627hf_attach_adapter(struct i2c_adapter *adapter);
 318 static int w83627hf_detect(struct i2c_adapter *adapter, int address,
 319                           int kind);
 320 static int w83627hf_detach_client(struct i2c_client *client);
 321
 322 static int w83627hf_read_value(struct i2c_client *client, u16 register);
 323 static int w83627hf_write_value(struct i2c_client *client, u16 register,
 324                                u16 value);
 325 static struct w83627hf_data *w83627hf_update_device(struct device *dev);
 326 static void w83627hf_init_client(struct i2c_client *client);
 327
 328 static struct i2c_driver w83627hf_driver = {
 329         .owner          = THIS_MODULE,
 330         .name           = "w83627hf",
 331         .id             = I2C_DRIVERID_W83627HF,
 332         .flags          = I2C_DF_NOTIFY,
 333         .attach_adapter = w83627hf_attach_adapter,
 334         .detach_client  = w83627hf_detach_client,
 335 };
 336
 337 /* following are the sysfs callback functions */
 338 #define show_in_reg(reg) \
 339 static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
 340 { \
 341         struct w83627hf_data *data = w83627hf_update_device(dev); \
 342         return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr])); \
 343 }
 344 show_in_reg(in)
 345 show_in_reg(in_min)
 346 show_in_reg(in_max)
 347
 348 #define store_in_reg(REG, reg) \
 349 static ssize_t \
 350 store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
 351 { \
 352         struct i2c_client *client = to_i2c_client(dev); \
 353         struct w83627hf_data *data = i2c_get_clientdata(client); \
 354         u32 val; \
 355          \
 356         val = simple_strtoul(buf, NULL, 10); \
 357          \
 358         down(&data->update_lock); \
 359         data->in_##reg[nr] = IN_TO_REG(val); \
 360         w83627hf_write_value(client, W83781D_REG_IN_##REG(nr), \
 361                             data->in_##reg[nr]); \
 362          \
 363         up(&data->update_lock); \
 364         return count; \
 365 }
 366 store_in_reg(MIN, min)
 367 store_in_reg(MAX, max)
 368
 369 #define sysfs_in_offset(offset) \
 370 static ssize_t \
 371 show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 372 { \
 373         return show_in(dev, buf, offset); \
 374 } \
 375 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
 376
 377 #define sysfs_in_reg_offset(reg, offset) \
 378 static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 379 { \
 380         return show_in_##reg (dev, buf, offset); \
 381 } \
 382 static ssize_t \
 383 store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, \
 384                             const char *buf, size_t count) \
 385 { \
 386         return store_in_##reg (dev, buf, count, offset); \
 387 } \
 388 static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, \
 389                   show_regs_in_##reg##offset, store_regs_in_##reg##offset);
 390
 391 #define sysfs_in_offsets(offset) \
 392 sysfs_in_offset(offset) \
 393 sysfs_in_reg_offset(min, offset) \
 394 sysfs_in_reg_offset(max, offset)
 395
 396 sysfs_in_offsets(1);
 397 sysfs_in_offsets(2);
 398 sysfs_in_offsets(3);
 399 sysfs_in_offsets(4);
 400 sysfs_in_offsets(5);
 401 sysfs_in_offsets(6);
 402 sysfs_in_offsets(7);
 403 sysfs_in_offsets(8);
 404
 405 /* use a different set of functions for in0 */
 406 static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
 407 {
 408         long in0;
 409
 410         if ((data->vrm_ovt & 0x01) &&
 411                 (w83627thf == data->type || w83637hf == data->type))
 412
 413                 /* use VRM9 calculation */
 414                 in0 = (long)((reg * 488 + 70000 + 50) / 100);
 415         else
 416                 /* use VRM8 (standard) calculation */
 417                 in0 = (long)IN_FROM_REG(reg);
 418
 419         return sprintf(buf,"%ld\n", in0);
 420 }
 421
 422 static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
 423 {
 424         struct w83627hf_data *data = w83627hf_update_device(dev);
 425         return show_in_0(data, buf, data->in[0]);
 426 }
 427
 428 static ssize_t show_regs_in_min0(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_min[0]);
 432 }
 433
 434 static ssize_t show_regs_in_max0(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_max[0]);
 438 }
 439
 440 static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
 441         const char *buf, size_t count)
 442 {
 443         struct i2c_client *client = to_i2c_client(dev);
 444         struct w83627hf_data *data = i2c_get_clientdata(client);
 445         u32 val;
 446
 447         val = simple_strtoul(buf, NULL, 10);
 448
 449         down(&data->update_lock);
 450
 451         if ((data->vrm_ovt & 0x01) &&
 452                 (w83627thf == data->type || w83637hf == data->type))
 453
 454                 /* use VRM9 calculation */
 455                 data->in_min[0] = (u8)(((val * 100) - 70000 + 244) / 488);
 456         else
 457                 /* use VRM8 (standard) calculation */
 458                 data->in_min[0] = IN_TO_REG(val);
 459
 460         w83627hf_write_value(client, W83781D_REG_IN_MIN(0), data->in_min[0]);
 461         up(&data->update_lock);
 462         return count;
 463 }
 464
 465 static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
 466         const char *buf, size_t count)
 467 {
 468         struct i2c_client *client = to_i2c_client(dev);
 469         struct w83627hf_data *data = i2c_get_clientdata(client);
 470         u32 val;
 471
 472         val = simple_strtoul(buf, NULL, 10);
 473
 474         down(&data->update_lock);
 475
 476         if ((data->vrm_ovt & 0x01) &&
 477                 (w83627thf == data->type || w83637hf == data->type))
 478
 479                 /* use VRM9 calculation */
 480                 data->in_max[0] = (u8)(((val * 100) - 70000 + 244) / 488);
 481         else
 482                 /* use VRM8 (standard) calculation */
 483                 data->in_max[0] = IN_TO_REG(val);
 484
 485         w83627hf_write_value(client, W83781D_REG_IN_MAX(0), data->in_max[0]);
 486         up(&data->update_lock);
 487         return count;
 488 }
 489
 490 static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
 491 static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
 492         show_regs_in_min0, store_regs_in_min0);
 493 static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
 494         show_regs_in_max0, store_regs_in_max0);
 495
 496 #define device_create_file_in(client, offset) \
 497 do { \
 498 device_create_file(&client->dev, &dev_attr_in##offset##_input); \
 499 device_create_file(&client->dev, &dev_attr_in##offset##_min); \
 500 device_create_file(&client->dev, &dev_attr_in##offset##_max); \
 501 } while (0)
 502
 503 #define show_fan_reg(reg) \
 504 static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
 505 { \
 506         struct w83627hf_data *data = w83627hf_update_device(dev); \
 507         return sprintf(buf,"%ld\n", \
 508                 FAN_FROM_REG(data->reg[nr-1], \
 509                             (long)DIV_FROM_REG(data->fan_div[nr-1]))); \
 510 }
 511 show_fan_reg(fan);
 512 show_fan_reg(fan_min);
 513
 514 static ssize_t
 515 store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
 516 {
 517         struct i2c_client *client = to_i2c_client(dev);
 518         struct w83627hf_data *data = i2c_get_clientdata(client);
 519         u32 val;
 520
 521         val = simple_strtoul(buf, NULL, 10);
 522
 523         down(&data->update_lock);
 524         data->fan_min[nr - 1] =
 525             FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
 526         w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr),
 527                             data->fan_min[nr - 1]);
 528
 529         up(&data->update_lock);
 530         return count;
 531 }
 532
 533 #define sysfs_fan_offset(offset) \
 534 static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 535 { \
 536         return show_fan(dev, buf, offset); \
 537 } \
 538 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
 539
 540 #define sysfs_fan_min_offset(offset) \
 541 static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 542 { \
 543         return show_fan_min(dev, buf, offset); \
 544 } \
 545 static ssize_t \
 546 store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
 547 { \
 548         return store_fan_min(dev, buf, count, offset); \
 549 } \
 550 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
 551                   show_regs_fan_min##offset, store_regs_fan_min##offset);
 552
 553 sysfs_fan_offset(1);
 554 sysfs_fan_min_offset(1);
 555 sysfs_fan_offset(2);
 556 sysfs_fan_min_offset(2);
 557 sysfs_fan_offset(3);
 558 sysfs_fan_min_offset(3);
 559
 560 #define device_create_file_fan(client, offset) \
 561 do { \
 562 device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
 563 device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
 564 } while (0)
 565
 566 #define show_temp_reg(reg) \
 567 static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
 568 { \
 569         struct w83627hf_data *data = w83627hf_update_device(dev); \
 570         if (nr >= 2) {  /* TEMP2 and TEMP3 */ \
 571                 return sprintf(buf,"%ld\n", \
 572                         (long)LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
 573         } else {        /* TEMP1 */ \
 574                 return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
 575         } \
 576 }
 577 show_temp_reg(temp);
 578 show_temp_reg(temp_max);
 579 show_temp_reg(temp_max_hyst);
 580
 581 #define store_temp_reg(REG, reg) \
 582 static ssize_t \
 583 store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
 584 { \
 585         struct i2c_client *client = to_i2c_client(dev); \
 586         struct w83627hf_data *data = i2c_get_clientdata(client); \
 587         u32 val; \
 588          \
 589         val = simple_strtoul(buf, NULL, 10); \
 590          \
 591         down(&data->update_lock); \
 592          \
 593         if (nr >= 2) {  /* TEMP2 and TEMP3 */ \
 594                 data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
 595                 w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
 596                                 data->temp_##reg##_add[nr-2]); \
 597         } else {        /* TEMP1 */ \
 598                 data->temp_##reg = TEMP_TO_REG(val); \
 599                 w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
 600                         data->temp_##reg); \
 601         } \
 602          \
 603         up(&data->update_lock); \
 604         return count; \
 605 }
 606 store_temp_reg(OVER, max);
 607 store_temp_reg(HYST, max_hyst);
 608
 609 #define sysfs_temp_offset(offset) \
 610 static ssize_t \
 611 show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 612 { \
 613         return show_temp(dev, buf, offset); \
 614 } \
 615 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
 616
 617 #define sysfs_temp_reg_offset(reg, offset) \
 618 static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 619 { \
 620         return show_temp_##reg (dev, buf, offset); \
 621 } \
 622 static ssize_t \
 623 store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, \
 624                               const char *buf, size_t count) \
 625 { \
 626         return store_temp_##reg (dev, buf, count, offset); \
 627 } \
 628 static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, \
 629                   show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
 630
 631 #define sysfs_temp_offsets(offset) \
 632 sysfs_temp_offset(offset) \
 633 sysfs_temp_reg_offset(max, offset) \
 634 sysfs_temp_reg_offset(max_hyst, offset)
 635
 636 sysfs_temp_offsets(1);
 637 sysfs_temp_offsets(2);
 638 sysfs_temp_offsets(3);
 639
 640 #define device_create_file_temp(client, offset) \
 641 do { \
 642 device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
 643 device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
 644 device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
 645 } while (0)
 646
 647 static ssize_t
 648 show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 649 {
 650         struct w83627hf_data *data = w83627hf_update_device(dev);
 651         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 652 }
 653 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 654 #define device_create_file_vid(client) \
 655 device_create_file(&client->dev, &dev_attr_cpu0_vid)
 656
 657 static ssize_t
 658 show_vrm_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) data->vrm);
 662 }
 663 static ssize_t
 664 store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 665 {
 666         struct i2c_client *client = to_i2c_client(dev);
 667         struct w83627hf_data *data = i2c_get_clientdata(client);
 668         u32 val;
 669
 670         val = simple_strtoul(buf, NULL, 10);
 671         data->vrm = val;
 672
 673         return count;
 674 }
 675 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 676 #define device_create_file_vrm(client) \
 677 device_create_file(&client->dev, &dev_attr_vrm)
 678
 679 static ssize_t
 680 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 681 {
 682         struct w83627hf_data *data = w83627hf_update_device(dev);
 683         return sprintf(buf, "%ld\n", (long) data->alarms);
 684 }
 685 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 686 #define device_create_file_alarms(client) \
 687 device_create_file(&client->dev, &dev_attr_alarms)
 688
 689 #define show_beep_reg(REG, reg) \
 690 static ssize_t show_beep_##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", \
 694                       (long)BEEP_##REG##_FROM_REG(data->beep_##reg)); \
 695 }
 696 show_beep_reg(ENABLE, enable)
 697 show_beep_reg(MASK, mask)
 698
 699 #define BEEP_ENABLE                     0       /* Store beep_enable */
 700 #define BEEP_MASK                       1       /* Store beep_mask */
 701
 702 static ssize_t
 703 store_beep_reg(struct device *dev, const char *buf, size_t count,
 704                int update_mask)
 705 {
 706         struct i2c_client *client = to_i2c_client(dev);
 707         struct w83627hf_data *data = i2c_get_clientdata(client);
 708         u32 val, val2;
 709
 710         val = simple_strtoul(buf, NULL, 10);
 711
 712         down(&data->update_lock);
 713
 714         if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
 715                 data->beep_mask = BEEP_MASK_TO_REG(val);
 716                 w83627hf_write_value(client, W83781D_REG_BEEP_INTS1,
 717                                     data->beep_mask & 0xff);
 718                 w83627hf_write_value(client, W83781D_REG_BEEP_INTS3,
 719                                     ((data->beep_mask) >> 16) & 0xff);
 720                 val2 = (data->beep_mask >> 8) & 0x7f;
 721         } else {                /* We are storing beep_enable */
 722                 val2 =
 723                     w83627hf_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
 724                 data->beep_enable = BEEP_ENABLE_TO_REG(val);
 725         }
 726
 727         w83627hf_write_value(client, W83781D_REG_BEEP_INTS2,
 728                             val2 | data->beep_enable << 7);
 729
 730         up(&data->update_lock);
 731         return count;
 732 }
 733
 734 #define sysfs_beep(REG, reg) \
 735 static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
 736 { \
 737         return show_beep_##reg(dev, attr, buf); \
 738 } \
 739 static ssize_t \
 740 store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
 741 { \
 742         return store_beep_reg(dev, buf, count, BEEP_##REG); \
 743 } \
 744 static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, \
 745                   show_regs_beep_##reg, store_regs_beep_##reg);
 746
 747 sysfs_beep(ENABLE, enable);
 748 sysfs_beep(MASK, mask);
 749
 750 #define device_create_file_beep(client) \
 751 do { \
 752 device_create_file(&client->dev, &dev_attr_beep_enable); \
 753 device_create_file(&client->dev, &dev_attr_beep_mask); \
 754 } while (0)
 755
 756 static ssize_t
 757 show_fan_div_reg(struct device *dev, char *buf, int nr)
 758 {
 759         struct w83627hf_data *data = w83627hf_update_device(dev);
 760         return sprintf(buf, "%ld\n",
 761                        (long) DIV_FROM_REG(data->fan_div[nr - 1]));
 762 }
 763
 764 /* Note: we save and restore the fan minimum here, because its value is
 765    determined in part by the fan divisor.  This follows the principle of
 766    least suprise; the user doesn't expect the fan minimum to change just
 767    because the divisor changed. */
 768 static ssize_t
 769 store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
 770 {
 771         struct i2c_client *client = to_i2c_client(dev);
 772         struct w83627hf_data *data = i2c_get_clientdata(client);
 773         unsigned long min;
 774         u8 reg;
 775         unsigned long val = simple_strtoul(buf, NULL, 10);
 776
 777         down(&data->update_lock);
 778
 779         /* Save fan_min */
 780         min = FAN_FROM_REG(data->fan_min[nr],
 781                            DIV_FROM_REG(data->fan_div[nr]));
 782
 783         data->fan_div[nr] = DIV_TO_REG(val);
 784
 785         reg = (w83627hf_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
 786                & (nr==0 ? 0xcf : 0x3f))
 787             | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
 788         w83627hf_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
 789
 790         reg = (w83627hf_read_value(client, W83781D_REG_VBAT)
 791                & ~(1 << (5 + nr)))
 792             | ((data->fan_div[nr] & 0x04) << (3 + nr));
 793         w83627hf_write_value(client, W83781D_REG_VBAT, reg);
 794
 795         /* Restore fan_min */
 796         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 797         w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
 798
 799         up(&data->update_lock);
 800         return count;
 801 }
 802
 803 #define sysfs_fan_div(offset) \
 804 static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 805 { \
 806         return show_fan_div_reg(dev, buf, offset); \
 807 } \
 808 static ssize_t \
 809 store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, \
 810                             const char *buf, size_t count) \
 811 { \
 812         return store_fan_div_reg(dev, buf, count, offset - 1); \
 813 } \
 814 static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
 815                   show_regs_fan_div_##offset, store_regs_fan_div_##offset);
 816
 817 sysfs_fan_div(1);
 818 sysfs_fan_div(2);
 819 sysfs_fan_div(3);
 820
 821 #define device_create_file_fan_div(client, offset) \
 822 do { \
 823 device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
 824 } while (0)
 825
 826 static ssize_t
 827 show_pwm_reg(struct device *dev, char *buf, int nr)
 828 {
 829         struct w83627hf_data *data = w83627hf_update_device(dev);
 830         return sprintf(buf, "%ld\n", (long) data->pwm[nr - 1]);
 831 }
 832
 833 static ssize_t
 834 store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
 835 {
 836         struct i2c_client *client = to_i2c_client(dev);
 837         struct w83627hf_data *data = i2c_get_clientdata(client);
 838         u32 val;
 839
 840         val = simple_strtoul(buf, NULL, 10);
 841
 842         down(&data->update_lock);
 843
 844         if (data->type == w83627thf) {
 845                 /* bits 0-3 are reserved  in 627THF */
 846                 data->pwm[nr - 1] = PWM_TO_REG(val) & 0xf0;
 847                 w83627hf_write_value(client,
 848                                      W836X7HF_REG_PWM(data->type, nr),
 849                                      data->pwm[nr - 1] |
 850                                      (w83627hf_read_value(client,
 851                                      W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
 852         } else {
 853                 data->pwm[nr - 1] = PWM_TO_REG(val);
 854                 w83627hf_write_value(client,
 855                                      W836X7HF_REG_PWM(data->type, nr),
 856                                      data->pwm[nr - 1]);
 857         }
 858
 859         up(&data->update_lock);
 860         return count;
 861 }
 862
 863 #define sysfs_pwm(offset) \
 864 static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 865 { \
 866         return show_pwm_reg(dev, buf, offset); \
 867 } \
 868 static ssize_t \
 869 store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
 870 { \
 871         return store_pwm_reg(dev, buf, count, offset); \
 872 } \
 873 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
 874                   show_regs_pwm_##offset, store_regs_pwm_##offset);
 875
 876 sysfs_pwm(1);
 877 sysfs_pwm(2);
 878 sysfs_pwm(3);
 879
 880 #define device_create_file_pwm(client, offset) \
 881 do { \
 882 device_create_file(&client->dev, &dev_attr_pwm##offset); \
 883 } while (0)
 884
 885 static ssize_t
 886 show_sensor_reg(struct device *dev, char *buf, int nr)
 887 {
 888         struct w83627hf_data *data = w83627hf_update_device(dev);
 889         return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
 890 }
 891
 892 static ssize_t
 893 store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
 894 {
 895         struct i2c_client *client = to_i2c_client(dev);
 896         struct w83627hf_data *data = i2c_get_clientdata(client);
 897         u32 val, tmp;
 898
 899         val = simple_strtoul(buf, NULL, 10);
 900
 901         down(&data->update_lock);
 902
 903         switch (val) {
 904         case 1:         /* PII/Celeron diode */
 905                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
 906                 w83627hf_write_value(client, W83781D_REG_SCFG1,
 907                                     tmp | BIT_SCFG1[nr - 1]);
 908                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
 909                 w83627hf_write_value(client, W83781D_REG_SCFG2,
 910                                     tmp | BIT_SCFG2[nr - 1]);
 911                 data->sens[nr - 1] = val;
 912                 break;
 913         case 2:         /* 3904 */
 914                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
 915                 w83627hf_write_value(client, W83781D_REG_SCFG1,
 916                                     tmp | BIT_SCFG1[nr - 1]);
 917                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
 918                 w83627hf_write_value(client, W83781D_REG_SCFG2,
 919                                     tmp & ~BIT_SCFG2[nr - 1]);
 920                 data->sens[nr - 1] = val;
 921                 break;
 922         case W83781D_DEFAULT_BETA:      /* thermistor */
 923                 tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
 924                 w83627hf_write_value(client, W83781D_REG_SCFG1,
 925                                     tmp & ~BIT_SCFG1[nr - 1]);
 926                 data->sens[nr - 1] = val;
 927                 break;
 928         default:
 929                 dev_err(&client->dev,
 930                        "Invalid sensor type %ld; must be 1, 2, or %d\n",
 931                        (long) val, W83781D_DEFAULT_BETA);
 932                 break;
 933         }
 934
 935         up(&data->update_lock);
 936         return count;
 937 }
 938
 939 #define sysfs_sensor(offset) \
 940 static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
 941 { \
 942     return show_sensor_reg(dev, buf, offset); \
 943 } \
 944 static ssize_t \
 945 store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
 946 { \
 947     return store_sensor_reg(dev, buf, count, offset); \
 948 } \
 949 static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
 950                   show_regs_sensor_##offset, store_regs_sensor_##offset);
 951
 952 sysfs_sensor(1);
 953 sysfs_sensor(2);
 954 sysfs_sensor(3);
 955
 956 #define device_create_file_sensor(client, offset) \
 957 do { \
 958 device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
 959 } while (0)
 960
 961
 962 /* This function is called when:
 963      * w83627hf_driver is inserted (when this module is loaded), for each
 964        available adapter
 965      * when a new adapter is inserted (and w83627hf_driver is still present) */
 966 static int w83627hf_attach_adapter(struct i2c_adapter *adapter)
 967 {
 968         return i2c_detect(adapter, &addr_data, w83627hf_detect);
 969 }
 970
 971 static int w83627hf_find(int sioaddr, int *address)
 972 {
 973         u16 val;
 974
 975         REG = sioaddr;
 976         VAL = sioaddr + 1;
 977
 978         superio_enter();
 979         val= superio_inb(DEVID);
 980         if(val != W627_DEVID &&
 981            val != W627THF_DEVID &&
 982            val != W697_DEVID &&
 983            val != W637_DEVID) {
 984                 superio_exit();
 985                 return -ENODEV;
 986         }
 987
 988         superio_select(W83627HF_LD_HWM);
 989         val = (superio_inb(WINB_BASE_REG) << 8) |
 990                superio_inb(WINB_BASE_REG + 1);
 991         *address = val & ~(WINB_EXTENT - 1);
 992         if (*address == 0 && force_addr == 0) {
 993                 superio_exit();
 994                 return -ENODEV;
 995         }
 996         if (force_addr)
 997                 *address = force_addr;  /* so detect will get called */
 998
 999         superio_exit();
1000         return 0;
1001 }
1002
1003 int w83627hf_detect(struct i2c_adapter *adapter, int address,
1004                    int kind)
1005 {
1006         int val;
1007         struct i2c_client *new_client;
1008         struct w83627hf_data *data;
1009         int err = 0;
1010         const char *client_name = "";
1011
1012         if (!i2c_is_isa_adapter(adapter)) {
1013                 err = -ENODEV;
1014                 goto ERROR0;
1015         }
1016
1017         if(force_addr)
1018                 address = force_addr & ~(WINB_EXTENT - 1);
1019
1020         if (!request_region(address, WINB_EXTENT, w83627hf_driver.name)) {
1021                 err = -EBUSY;
1022                 goto ERROR0;
1023         }
1024
1025         if(force_addr) {
1026                 printk("w83627hf.o: forcing ISA address 0x%04X\n", address);
1027                 superio_enter();
1028                 superio_select(W83627HF_LD_HWM);
1029                 superio_outb(WINB_BASE_REG, address >> 8);
1030                 superio_outb(WINB_BASE_REG+1, address & 0xff);
1031                 superio_exit();
1032         }
1033
1034         superio_enter();
1035         val= superio_inb(DEVID);
1036         if(val == W627_DEVID)
1037                 kind = w83627hf;
1038         else if(val == W697_DEVID)
1039                 kind = w83697hf;
1040         else if(val == W627THF_DEVID)
1041                 kind = w83627thf;
1042         else if(val == W637_DEVID)
1043                 kind = w83637hf;
1044         else {
1045                 dev_info(&adapter->dev,
1046                          "Unsupported chip (dev_id=0x%02X).\n", val);
1047                 goto ERROR1;
1048         }
1049
1050         superio_select(W83627HF_LD_HWM);
1051         if((val = 0x01 & superio_inb(WINB_ACT_REG)) == 0)
1052                 superio_outb(WINB_ACT_REG, 1);
1053         superio_exit();
1054
1055         /* OK. For now, we presume we have a valid client. We now create the
1056            client structure, even though we cannot fill it completely yet.
1057            But it allows us to access w83627hf_{read,write}_value. */
1058
1059         if (!(data = kmalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
1060                 err = -ENOMEM;
1061                 goto ERROR1;
1062         }
1063         memset(data, 0, sizeof(struct w83627hf_data));
1064
1065         new_client = &data->client;
1066         i2c_set_clientdata(new_client, data);
1067         new_client->addr = address;
1068         init_MUTEX(&data->lock);
1069         new_client->adapter = adapter;
1070         new_client->driver = &w83627hf_driver;
1071         new_client->flags = 0;
1072
1073
1074         if (kind == w83627hf) {
1075                 client_name = "w83627hf";
1076         } else if (kind == w83627thf) {
1077                 client_name = "w83627thf";
1078         } else if (kind == w83697hf) {
1079                 client_name = "w83697hf";
1080         } else if (kind == w83637hf) {
1081                 client_name = "w83637hf";
1082         }
1083
1084         /* Fill in the remaining client fields and put into the global list */
1085         strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
1086         data->type = kind;
1087         data->valid = 0;
1088         init_MUTEX(&data->update_lock);
1089
1090         /* Tell the I2C layer a new client has arrived */
1091         if ((err = i2c_attach_client(new_client)))
1092                 goto ERROR2;
1093
1094         data->lm75 = NULL;
1095
1096         /* Initialize the chip */
1097         w83627hf_init_client(new_client);
1098
1099         /* A few vars need to be filled upon startup */
1100         data->fan_min[0] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(1));
1101         data->fan_min[1] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(2));
1102         data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3));
1103
1104         /* Register sysfs hooks */
1105         device_create_file_in(new_client, 0);
1106         if (kind != w83697hf)
1107                 device_create_file_in(new_client, 1);
1108         device_create_file_in(new_client, 2);
1109         device_create_file_in(new_client, 3);
1110         device_create_file_in(new_client, 4);
1111         if (kind != w83627thf && kind != w83637hf) {
1112                 device_create_file_in(new_client, 5);
1113                 device_create_file_in(new_client, 6);
1114         }
1115         device_create_file_in(new_client, 7);
1116         device_create_file_in(new_client, 8);
1117
1118         device_create_file_fan(new_client, 1);
1119         device_create_file_fan(new_client, 2);
1120         if (kind != w83697hf)
1121                 device_create_file_fan(new_client, 3);
1122
1123         device_create_file_temp(new_client, 1);
1124         device_create_file_temp(new_client, 2);
1125         if (kind != w83697hf)
1126                 device_create_file_temp(new_client, 3);
1127
1128         if (kind != w83697hf)
1129                 device_create_file_vid(new_client);
1130
1131         if (kind != w83697hf)
1132                 device_create_file_vrm(new_client);
1133
1134         device_create_file_fan_div(new_client, 1);
1135         device_create_file_fan_div(new_client, 2);
1136         if (kind != w83697hf)
1137                 device_create_file_fan_div(new_client, 3);
1138
1139         device_create_file_alarms(new_client);
1140
1141         device_create_file_beep(new_client);
1142
1143         device_create_file_pwm(new_client, 1);
1144         device_create_file_pwm(new_client, 2);
1145         if (kind == w83627thf || kind == w83637hf)
1146                 device_create_file_pwm(new_client, 3);
1147
1148         device_create_file_sensor(new_client, 1);
1149         device_create_file_sensor(new_client, 2);
1150         if (kind != w83697hf)
1151                 device_create_file_sensor(new_client, 3);
1152
1153         return 0;
1154
1155       ERROR2:
1156         kfree(data);
1157       ERROR1:
1158         release_region(address, WINB_EXTENT);
1159       ERROR0:
1160         return err;
1161 }
1162
1163 static int w83627hf_detach_client(struct i2c_client *client)
1164 {
1165         int err;
1166
1167         if ((err = i2c_detach_client(client))) {
1168                 dev_err(&client->dev,
1169                        "Client deregistration failed, client not detached.\n");
1170                 return err;
1171         }
1172
1173         release_region(client->addr, WINB_EXTENT);
1174         kfree(i2c_get_clientdata(client));
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         down(&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         up(&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);
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         down(&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         up(&data->lock);
1282         return 0;
1283 }
1284
1285 /* Called when we have found a new W83781D. It should set limits, etc. */
1286 static void w83627hf_init_client(struct i2c_client *client)
1287 {
1288         struct w83627hf_data *data = i2c_get_clientdata(client);
1289         int i;
1290         int type = data->type;
1291         u8 tmp;
1292
1293         if(init) {
1294                 /* save this register */
1295                 i = w83627hf_read_value(client, W83781D_REG_BEEP_CONFIG);
1296                 /* Reset all except Watchdog values and last conversion values
1297                    This sets fan-divs to 2, among others */
1298                 w83627hf_write_value(client, W83781D_REG_CONFIG, 0x80);
1299                 /* Restore the register and disable power-on abnormal beep.
1300                    This saves FAN 1/2/3 input/output values set by BIOS. */
1301                 w83627hf_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
1302                 /* Disable master beep-enable (reset turns it on).
1303                    Individual beeps should be reset to off but for some reason
1304                    disabling this bit helps some people not get beeped */
1305                 w83627hf_write_value(client, W83781D_REG_BEEP_INTS2, 0);
1306         }
1307
1308         /* Minimize conflicts with other winbond i2c-only clients...  */
1309         /* disable i2c subclients... how to disable main i2c client?? */
1310         /* force i2c address to relatively uncommon address */
1311         w83627hf_write_value(client, W83781D_REG_I2C_SUBADDR, 0x89);
1312         w83627hf_write_value(client, W83781D_REG_I2C_ADDR, force_i2c);
1313
1314         /* Read VID only once */
1315         if (w83627hf == data->type || w83637hf == data->type) {
1316                 int lo = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
1317                 int hi = w83627hf_read_value(client, W83781D_REG_CHIPID);
1318                 data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
1319         } else if (w83627thf == data->type) {
1320                 data->vid = w83627thf_read_gpio5(client) & 0x3f;
1321         }
1322
1323         /* Read VRM & OVT Config only once */
1324         if (w83627thf == data->type || w83637hf == data->type) {
1325                 data->vrm_ovt =
1326                         w83627hf_read_value(client, W83627THF_REG_VRM_OVT_CFG);
1327                 data->vrm = (data->vrm_ovt & 0x01) ? 90 : 82;
1328         } else {
1329                 /* Convert VID to voltage based on default VRM */
1330                 data->vrm = i2c_which_vrm();
1331         }
1332
1333         tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
1334         for (i = 1; i <= 3; i++) {
1335                 if (!(tmp & BIT_SCFG1[i - 1])) {
1336                         data->sens[i - 1] = W83781D_DEFAULT_BETA;
1337                 } else {
1338                         if (w83627hf_read_value
1339                             (client,
1340                              W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
1341                                 data->sens[i - 1] = 1;
1342                         else
1343                                 data->sens[i - 1] = 2;
1344                 }
1345                 if ((type == w83697hf) && (i == 2))
1346                         break;
1347         }
1348
1349         if(init) {
1350                 /* Enable temp2 */
1351                 tmp = w83627hf_read_value(client, W83781D_REG_TEMP2_CONFIG);
1352                 if (tmp & 0x01) {
1353                         dev_warn(&client->dev, "Enabling temp2, readings "
1354                                  "might not make sense\n");
1355                         w83627hf_write_value(client, W83781D_REG_TEMP2_CONFIG,
1356                                 tmp & 0xfe);
1357                 }
1358
1359                 /* Enable temp3 */
1360                 if (type != w83697hf) {
1361                         tmp = w83627hf_read_value(client,
1362                                 W83781D_REG_TEMP3_CONFIG);
1363                         if (tmp & 0x01) {
1364                                 dev_warn(&client->dev, "Enabling temp3, "
1365                                          "readings might not make sense\n");
1366                                 w83627hf_write_value(client,
1367                                         W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
1368                         }
1369                 }
1370
1371                 if (type == w83627hf) {
1372                         /* enable PWM2 control (can't hurt since PWM reg
1373                            should have been reset to 0xff) */
1374                         w83627hf_write_value(client, W83627HF_REG_PWMCLK12,
1375                                             0x19);
1376                 }
1377                 /* enable comparator mode for temp2 and temp3 so
1378                    alarm indication will work correctly */
1379                 i = w83627hf_read_value(client, W83781D_REG_IRQ);
1380                 if (!(i & 0x40))
1381                         w83627hf_write_value(client, W83781D_REG_IRQ,
1382                                             i | 0x40);
1383         }
1384
1385         /* Start monitoring */
1386         w83627hf_write_value(client, W83781D_REG_CONFIG,
1387                             (w83627hf_read_value(client,
1388                                                 W83781D_REG_CONFIG) & 0xf7)
1389                             | 0x01);
1390 }
1391
1392 static struct w83627hf_data *w83627hf_update_device(struct device *dev)
1393 {
1394         struct i2c_client *client = to_i2c_client(dev);
1395         struct w83627hf_data *data = i2c_get_clientdata(client);
1396         int i;
1397
1398         down(&data->update_lock);
1399
1400         if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1401             || !data->valid) {
1402                 for (i = 0; i <= 8; i++) {
1403                         /* skip missing sensors */
1404                         if (((data->type == w83697hf) && (i == 1)) ||
1405                             ((data->type == w83627thf || data->type == w83637hf)
1406                             && (i == 4 || i == 5)))
1407                                 continue;
1408                         data->in[i] =
1409                             w83627hf_read_value(client, W83781D_REG_IN(i));
1410                         data->in_min[i] =
1411                             w83627hf_read_value(client,
1412                                                W83781D_REG_IN_MIN(i));
1413                         data->in_max[i] =
1414                             w83627hf_read_value(client,
1415                                                W83781D_REG_IN_MAX(i));
1416                 }
1417                 for (i = 1; i <= 3; i++) {
1418                         data->fan[i - 1] =
1419                             w83627hf_read_value(client, W83781D_REG_FAN(i));
1420                         data->fan_min[i - 1] =
1421                             w83627hf_read_value(client,
1422                                                W83781D_REG_FAN_MIN(i));
1423                 }
1424                 for (i = 1; i <= 3; i++) {
1425                         u8 tmp = w83627hf_read_value(client,
1426                                 W836X7HF_REG_PWM(data->type, i));
1427                         /* bits 0-3 are reserved  in 627THF */
1428                         if (data->type == w83627thf)
1429                                 tmp &= 0xf0;
1430                         data->pwm[i - 1] = tmp;
1431                         if(i == 2 &&
1432                            (data->type == w83627hf || data->type == w83697hf))
1433                                 break;
1434                 }
1435
1436                 data->temp = w83627hf_read_value(client, W83781D_REG_TEMP(1));
1437                 data->temp_max =
1438                     w83627hf_read_value(client, W83781D_REG_TEMP_OVER(1));
1439                 data->temp_max_hyst =
1440                     w83627hf_read_value(client, W83781D_REG_TEMP_HYST(1));
1441                 data->temp_add[0] =
1442                     w83627hf_read_value(client, W83781D_REG_TEMP(2));
1443                 data->temp_max_add[0] =
1444                     w83627hf_read_value(client, W83781D_REG_TEMP_OVER(2));
1445                 data->temp_max_hyst_add[0] =
1446                     w83627hf_read_value(client, W83781D_REG_TEMP_HYST(2));
1447                 if (data->type != w83697hf) {
1448                         data->temp_add[1] =
1449                           w83627hf_read_value(client, W83781D_REG_TEMP(3));
1450                         data->temp_max_add[1] =
1451                           w83627hf_read_value(client, W83781D_REG_TEMP_OVER(3));
1452                         data->temp_max_hyst_add[1] =
1453                           w83627hf_read_value(client, W83781D_REG_TEMP_HYST(3));
1454                 }
1455
1456                 i = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
1457                 data->fan_div[0] = (i >> 4) & 0x03;
1458                 data->fan_div[1] = (i >> 6) & 0x03;
1459                 if (data->type != w83697hf) {
1460                         data->fan_div[2] = (w83627hf_read_value(client,
1461                                                W83781D_REG_PIN) >> 6) & 0x03;
1462                 }
1463                 i = w83627hf_read_value(client, W83781D_REG_VBAT);
1464                 data->fan_div[0] |= (i >> 3) & 0x04;
1465                 data->fan_div[1] |= (i >> 4) & 0x04;
1466                 if (data->type != w83697hf)
1467                         data->fan_div[2] |= (i >> 5) & 0x04;
1468                 data->alarms =
1469                     w83627hf_read_value(client, W83781D_REG_ALARM1) |
1470                     (w83627hf_read_value(client, W83781D_REG_ALARM2) << 8) |
1471                     (w83627hf_read_value(client, W83781D_REG_ALARM3) << 16);
1472                 i = w83627hf_read_value(client, W83781D_REG_BEEP_INTS2);
1473                 data->beep_enable = i >> 7;
1474                 data->beep_mask = ((i & 0x7f) << 8) |
1475                     w83627hf_read_value(client, W83781D_REG_BEEP_INTS1) |
1476                     w83627hf_read_value(client, W83781D_REG_BEEP_INTS3) << 16;
1477                 data->last_updated = jiffies;
1478                 data->valid = 1;
1479         }
1480
1481         up(&data->update_lock);
1482
1483         return data;
1484 }
1485
1486 static int __init sensors_w83627hf_init(void)
1487 {
1488         int addr;
1489
1490         if (w83627hf_find(0x2e, &addr)
1491          && w83627hf_find(0x4e, &addr)) {
1492                 return -ENODEV;
1493         }
1494         normal_isa[0] = addr;
1495
1496         return i2c_add_driver(&w83627hf_driver);
1497 }
1498
1499 static void __exit sensors_w83627hf_exit(void)
1500 {
1501         i2c_del_driver(&w83627hf_driver);
1502 }
1503
1504 MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
1505               "Philip Edelbrock <phil@netroedge.com>, "
1506               "and Mark Studebaker <mdsxyz123@yahoo.com>");
1507 MODULE_DESCRIPTION("W83627HF driver");
1508 MODULE_LICENSE("GPL");
1509
1510 module_init(sensors_w83627hf_init);
1511 module_exit(sensors_w83627hf_exit);