drivers/hwmon/w83627hf.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
superio_outb
superio_inb
superio_select
superio_enter
superio_exit
FAN_TO_REG
TEMP_TO_REG
TEMP_FROM_REG
pwm_freq_from_reg_627hf
pwm_freq_to_reg_627hf
pwm_freq_from_reg
pwm_freq_to_reg
DIV_TO_REG
w83627hf_suspend
w83627hf_resume
in_input_show
in_min_show
in_max_show
in_min_store
in_max_store
show_in_0
in0_input_show
in0_min_show
in0_max_show
in0_min_store
in0_max_store
fan_input_show
fan_min_show
fan_min_store
temp_show
temp_max_show
temp_max_hyst_show
temp_max_store
temp_max_hyst_store
cpu0_vid_show
vrm_show
vrm_store
alarms_show
alarm_show
beep_mask_show
beep_mask_store
beep_show
beep_store
fan_div_show
fan_div_store
pwm_show
pwm_store
pwm_enable_show
pwm_enable_store
pwm_freq_show
pwm_freq_store
temp_type_show
temp_type_store
name_show
w83627hf_find
w83627hf_probe
w83627hf_remove
w83627hf_set_bank
w83627hf_reset_bank
w83627hf_read_value
w83627thf_read_gpio5
w83687thf_read_vid
w83627hf_write_value
w83627hf_init_device
w83627hf_update_fan_div
w83627hf_update_device
w83627hf_device_add
sensors_w83627hf_init
sensors_w83627hf_exit
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
   4  *              monitoring
   5  * Copyright (c) 1998 - 2003  Frodo Looijaard <frodol@dds.nl>,
   6  *                            Philip Edelbrock <phil@netroedge.com>,
   7  *                            and Mark Studebaker <mdsxyz123@yahoo.com>
   8  * Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
   9  * Copyright (c) 2007 - 1012  Jean Delvare <jdelvare@suse.de>
  10  */
  11 
  12 /*
  13  * Supports following chips:
  14  *
  15  * Chip         #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  16  * w83627hf     9       3       2       3       0x20    0x5ca3  no      yes(LPC)
  17  * w83627thf    7       3       3       3       0x90    0x5ca3  no      yes(LPC)
  18  * w83637hf     7       3       3       3       0x80    0x5ca3  no      yes(LPC)
  19  * w83687thf    7       3       3       3       0x90    0x5ca3  no      yes(LPC)
  20  * w83697hf     8       2       2       2       0x60    0x5ca3  no      yes(LPC)
  21  *
  22  * For other winbond chips, and for i2c support in the above chips,
  23  * use w83781d.c.
  24  *
  25  * Note: automatic ("cruise") fan control for 697, 637 & 627thf not
  26  * supported yet.
  27  */
  28 
  29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  30 
  31 #include <linux/module.h>
  32 #include <linux/init.h>
  33 #include <linux/slab.h>
  34 #include <linux/jiffies.h>
  35 #include <linux/platform_device.h>
  36 #include <linux/hwmon.h>
  37 #include <linux/hwmon-sysfs.h>
  38 #include <linux/hwmon-vid.h>
  39 #include <linux/err.h>
  40 #include <linux/mutex.h>
  41 #include <linux/ioport.h>
  42 #include <linux/acpi.h>
  43 #include <linux/io.h>
  44 #include "lm75.h"
  45 
  46 static struct platform_device *pdev;
  47 
  48 #define DRVNAME "w83627hf"
  49 enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
  50 
  51 struct w83627hf_sio_data {
  52         enum chips type;
  53         int sioaddr;
  54 };
  55 
  56 static u8 force_i2c = 0x1f;
  57 module_param(force_i2c, byte, 0);
  58 MODULE_PARM_DESC(force_i2c,
  59                  "Initialize the i2c address of the sensors");
  60 
  61 static bool init = 1;
  62 module_param(init, bool, 0);
  63 MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
  64 
  65 static unsigned short force_id;
  66 module_param(force_id, ushort, 0);
  67 MODULE_PARM_DESC(force_id, "Override the detected device ID");
  68 
  69 /* modified from kernel/include/traps.c */
  70 #define DEV                     0x07 /* Register: Logical device select */
  71 
  72 /* logical device numbers for superio_select (below) */
  73 #define W83627HF_LD_FDC         0x00
  74 #define W83627HF_LD_PRT         0x01
  75 #define W83627HF_LD_UART1       0x02
  76 #define W83627HF_LD_UART2       0x03
  77 #define W83627HF_LD_KBC         0x05
  78 #define W83627HF_LD_CIR         0x06 /* w83627hf only */
  79 #define W83627HF_LD_GAME        0x07
  80 #define W83627HF_LD_MIDI        0x07
  81 #define W83627HF_LD_GPIO1       0x07
  82 #define W83627HF_LD_GPIO5       0x07 /* w83627thf only */
  83 #define W83627HF_LD_GPIO2       0x08
  84 #define W83627HF_LD_GPIO3       0x09
  85 #define W83627HF_LD_GPIO4       0x09 /* w83627thf only */
  86 #define W83627HF_LD_ACPI        0x0a
  87 #define W83627HF_LD_HWM         0x0b
  88 
  89 #define DEVID                   0x20 /* Register: Device ID */
  90 
  91 #define W83627THF_GPIO5_EN      0x30 /* w83627thf only */
  92 #define W83627THF_GPIO5_IOSR    0xf3 /* w83627thf only */
  93 #define W83627THF_GPIO5_DR      0xf4 /* w83627thf only */
  94 
  95 #define W83687THF_VID_EN        0x29 /* w83687thf only */
  96 #define W83687THF_VID_CFG       0xF0 /* w83687thf only */
  97 #define W83687THF_VID_DATA      0xF1 /* w83687thf only */
  98 
  99 static inline void
 100 superio_outb(struct w83627hf_sio_data *sio, int reg, int val)
 101 {
 102         outb(reg, sio->sioaddr);
 103         outb(val, sio->sioaddr + 1);
 104 }
 105 
 106 static inline int
 107 superio_inb(struct w83627hf_sio_data *sio, int reg)
 108 {
 109         outb(reg, sio->sioaddr);
 110         return inb(sio->sioaddr + 1);
 111 }
 112 
 113 static inline void
 114 superio_select(struct w83627hf_sio_data *sio, int ld)
 115 {
 116         outb(DEV, sio->sioaddr);
 117         outb(ld,  sio->sioaddr + 1);
 118 }
 119 
 120 static inline int
 121 superio_enter(struct w83627hf_sio_data *sio)
 122 {
 123         if (!request_muxed_region(sio->sioaddr, 2, DRVNAME))
 124                 return -EBUSY;
 125 
 126         outb(0x87, sio->sioaddr);
 127         outb(0x87, sio->sioaddr);
 128 
 129         return 0;
 130 }
 131 
 132 static inline void
 133 superio_exit(struct w83627hf_sio_data *sio)
 134 {
 135         outb(0xAA, sio->sioaddr);
 136         release_region(sio->sioaddr, 2);
 137 }
 138 
 139 #define W627_DEVID 0x52
 140 #define W627THF_DEVID 0x82
 141 #define W697_DEVID 0x60
 142 #define W637_DEVID 0x70
 143 #define W687THF_DEVID 0x85
 144 #define WINB_ACT_REG 0x30
 145 #define WINB_BASE_REG 0x60
 146 /* Constants specified below */
 147 
 148 /* Alignment of the base address */
 149 #define WINB_ALIGNMENT          ~7
 150 
 151 /* Offset & size of I/O region we are interested in */
 152 #define WINB_REGION_OFFSET      5
 153 #define WINB_REGION_SIZE        2
 154 
 155 /* Where are the sensors address/data registers relative to the region offset */
 156 #define W83781D_ADDR_REG_OFFSET 0
 157 #define W83781D_DATA_REG_OFFSET 1
 158 
 159 /* The W83781D registers */
 160 /* The W83782D registers for nr=7,8 are in bank 5 */
 161 #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
 162                                            (0x554 + (((nr) - 7) * 2)))
 163 #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
 164                                            (0x555 + (((nr) - 7) * 2)))
 165 #define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
 166                                            (0x550 + (nr) - 7))
 167 
 168 /* nr:0-2 for fans:1-3 */
 169 #define W83627HF_REG_FAN_MIN(nr)        (0x3b + (nr))
 170 #define W83627HF_REG_FAN(nr)            (0x28 + (nr))
 171 
 172 #define W83627HF_REG_TEMP2_CONFIG 0x152
 173 #define W83627HF_REG_TEMP3_CONFIG 0x252
 174 /* these are zero-based, unlike config constants above */
 175 static const u16 w83627hf_reg_temp[]            = { 0x27, 0x150, 0x250 };
 176 static const u16 w83627hf_reg_temp_hyst[]       = { 0x3A, 0x153, 0x253 };
 177 static const u16 w83627hf_reg_temp_over[]       = { 0x39, 0x155, 0x255 };
 178 
 179 #define W83781D_REG_BANK 0x4E
 180 
 181 #define W83781D_REG_CONFIG 0x40
 182 #define W83781D_REG_ALARM1 0x459
 183 #define W83781D_REG_ALARM2 0x45A
 184 #define W83781D_REG_ALARM3 0x45B
 185 
 186 #define W83781D_REG_BEEP_CONFIG 0x4D
 187 #define W83781D_REG_BEEP_INTS1 0x56
 188 #define W83781D_REG_BEEP_INTS2 0x57
 189 #define W83781D_REG_BEEP_INTS3 0x453
 190 
 191 #define W83781D_REG_VID_FANDIV 0x47
 192 
 193 #define W83781D_REG_CHIPID 0x49
 194 #define W83781D_REG_WCHIPID 0x58
 195 #define W83781D_REG_CHIPMAN 0x4F
 196 #define W83781D_REG_PIN 0x4B
 197 
 198 #define W83781D_REG_VBAT 0x5D
 199 
 200 #define W83627HF_REG_PWM1 0x5A
 201 #define W83627HF_REG_PWM2 0x5B
 202 
 203 static const u8 W83627THF_REG_PWM_ENABLE[] = {
 204         0x04,           /* FAN 1 mode */
 205         0x04,           /* FAN 2 mode */
 206         0x12,           /* FAN AUX mode */
 207 };
 208 static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };
 209 
 210 #define W83627THF_REG_PWM1              0x01    /* 697HF/637HF/687THF too */
 211 #define W83627THF_REG_PWM2              0x03    /* 697HF/637HF/687THF too */
 212 #define W83627THF_REG_PWM3              0x11    /* 637HF/687THF too */
 213 
 214 #define W83627THF_REG_VRM_OVT_CFG       0x18    /* 637HF/687THF too */
 215 
 216 static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
 217 static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
 218                              W83627THF_REG_PWM3 };
 219 #define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
 220                                     regpwm_627hf[nr] : regpwm[nr])
 221 
 222 #define W83627HF_REG_PWM_FREQ           0x5C    /* Only for the 627HF */
 223 
 224 #define W83637HF_REG_PWM_FREQ1          0x00    /* 697HF/687THF too */
 225 #define W83637HF_REG_PWM_FREQ2          0x02    /* 697HF/687THF too */
 226 #define W83637HF_REG_PWM_FREQ3          0x10    /* 687THF too */
 227 
 228 static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
 229                                         W83637HF_REG_PWM_FREQ2,
 230                                         W83637HF_REG_PWM_FREQ3 };
 231 
 232 #define W83627HF_BASE_PWM_FREQ  46870
 233 
 234 #define W83781D_REG_I2C_ADDR 0x48
 235 #define W83781D_REG_I2C_SUBADDR 0x4A
 236 
 237 /* Sensor selection */
 238 #define W83781D_REG_SCFG1 0x5D
 239 static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
 240 #define W83781D_REG_SCFG2 0x59
 241 static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
 242 #define W83781D_DEFAULT_BETA 3435
 243 
 244 /*
 245  * Conversions. Limit checking is only done on the TO_REG
 246  * variants. Note that you should be a bit careful with which arguments
 247  * these macros are called: arguments may be evaluated more than once.
 248  * Fixing this is just not worth it.
 249  */
 250 #define IN_TO_REG(val)  (clamp_val((((val) + 8) / 16), 0, 255))
 251 #define IN_FROM_REG(val) ((val) * 16)
 252 
 253 static inline u8 FAN_TO_REG(long rpm, int div)
 254 {
 255         if (rpm == 0)
 256                 return 255;
 257         rpm = clamp_val(rpm, 1, 1000000);
 258         return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 259 }
 260 
 261 #define TEMP_MIN (-128000)
 262 #define TEMP_MAX ( 127000)
 263 
 264 /*
 265  * TEMP: 0.001C/bit (-128C to +127C)
 266  * REG: 1C/bit, two's complement
 267  */
 268 static u8 TEMP_TO_REG(long temp)
 269 {
 270         int ntemp = clamp_val(temp, TEMP_MIN, TEMP_MAX);
 271         ntemp += (ntemp < 0 ? -500 : 500);
 272         return (u8)(ntemp / 1000);
 273 }
 274 
 275 static int TEMP_FROM_REG(u8 reg)
 276 {
 277         return (s8)reg * 1000;
 278 }
 279 
 280 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
 281 
 282 #define PWM_TO_REG(val) (clamp_val((val), 0, 255))
 283 
 284 static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
 285 {
 286         unsigned long freq;
 287         freq = W83627HF_BASE_PWM_FREQ >> reg;
 288         return freq;
 289 }
 290 static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
 291 {
 292         u8 i;
 293         /*
 294          * Only 5 dividers (1 2 4 8 16)
 295          * Search for the nearest available frequency
 296          */
 297         for (i = 0; i < 4; i++) {
 298                 if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
 299                             (W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
 300                         break;
 301         }
 302         return i;
 303 }
 304 
 305 static inline unsigned long pwm_freq_from_reg(u8 reg)
 306 {
 307         /* Clock bit 8 -> 180 kHz or 24 MHz */
 308         unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
 309 
 310         reg &= 0x7f;
 311         /* This should not happen but anyway... */
 312         if (reg == 0)
 313                 reg++;
 314         return clock / (reg << 8);
 315 }
 316 static inline u8 pwm_freq_to_reg(unsigned long val)
 317 {
 318         /* Minimum divider value is 0x01 and maximum is 0x7F */
 319         if (val >= 93750)       /* The highest we can do */
 320                 return 0x01;
 321         if (val >= 720) /* Use 24 MHz clock */
 322                 return 24000000UL / (val << 8);
 323         if (val < 6)            /* The lowest we can do */
 324                 return 0xFF;
 325         else                    /* Use 180 kHz clock */
 326                 return 0x80 | (180000UL / (val << 8));
 327 }
 328 
 329 #define BEEP_MASK_FROM_REG(val)         ((val) & 0xff7fff)
 330 #define BEEP_MASK_TO_REG(val)           ((val) & 0xff7fff)
 331 
 332 #define DIV_FROM_REG(val) (1 << (val))
 333 
 334 static inline u8 DIV_TO_REG(long val)
 335 {
 336         int i;
 337         val = clamp_val(val, 1, 128) >> 1;
 338         for (i = 0; i < 7; i++) {
 339                 if (val == 0)
 340                         break;
 341                 val >>= 1;
 342         }
 343         return (u8)i;
 344 }
 345 
 346 /*
 347  * For each registered chip, we need to keep some data in memory.
 348  * The structure is dynamically allocated.
 349  */
 350 struct w83627hf_data {
 351         unsigned short addr;
 352         const char *name;
 353         struct device *hwmon_dev;
 354         struct mutex lock;
 355         enum chips type;
 356 
 357         struct mutex update_lock;
 358         char valid;             /* !=0 if following fields are valid */
 359         unsigned long last_updated;     /* In jiffies */
 360 
 361         u8 in[9];               /* Register value */
 362         u8 in_max[9];           /* Register value */
 363         u8 in_min[9];           /* Register value */
 364         u8 fan[3];              /* Register value */
 365         u8 fan_min[3];          /* Register value */
 366         u16 temp[3];            /* Register value */
 367         u16 temp_max[3];        /* Register value */
 368         u16 temp_max_hyst[3];   /* Register value */
 369         u8 fan_div[3];          /* Register encoding, shifted right */
 370         u8 vid;                 /* Register encoding, combined */
 371         u32 alarms;             /* Register encoding, combined */
 372         u32 beep_mask;          /* Register encoding, combined */
 373         u8 pwm[3];              /* Register value */
 374         u8 pwm_enable[3];       /* 1 = manual
 375                                  * 2 = thermal cruise (also called SmartFan I)
 376                                  * 3 = fan speed cruise
 377                                  */
 378         u8 pwm_freq[3];         /* Register value */
 379         u16 sens[3];            /* 1 = pentium diode; 2 = 3904 diode;
 380                                  * 4 = thermistor
 381                                  */
 382         u8 vrm;
 383         u8 vrm_ovt;             /* Register value, 627THF/637HF/687THF only */
 384 
 385 #ifdef CONFIG_PM
 386         /* Remember extra register values over suspend/resume */
 387         u8 scfg1;
 388         u8 scfg2;
 389 #endif
 390 };
 391 
 392 static int w83627hf_probe(struct platform_device *pdev);
 393 static int w83627hf_remove(struct platform_device *pdev);
 394 
 395 static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
 396 static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value);
 397 static void w83627hf_update_fan_div(struct w83627hf_data *data);
 398 static struct w83627hf_data *w83627hf_update_device(struct device *dev);
 399 static void w83627hf_init_device(struct platform_device *pdev);
 400 
 401 #ifdef CONFIG_PM
 402 static int w83627hf_suspend(struct device *dev)
 403 {
 404         struct w83627hf_data *data = w83627hf_update_device(dev);
 405 
 406         mutex_lock(&data->update_lock);
 407         data->scfg1 = w83627hf_read_value(data, W83781D_REG_SCFG1);
 408         data->scfg2 = w83627hf_read_value(data, W83781D_REG_SCFG2);
 409         mutex_unlock(&data->update_lock);
 410 
 411         return 0;
 412 }
 413 
 414 static int w83627hf_resume(struct device *dev)
 415 {
 416         struct w83627hf_data *data = dev_get_drvdata(dev);
 417         int i, num_temps = (data->type == w83697hf) ? 2 : 3;
 418 
 419         /* Restore limits */
 420         mutex_lock(&data->update_lock);
 421         for (i = 0; i <= 8; i++) {
 422                 /* skip missing sensors */
 423                 if (((data->type == w83697hf) && (i == 1)) ||
 424                     ((data->type != w83627hf && data->type != w83697hf)
 425                     && (i == 5 || i == 6)))
 426                         continue;
 427                 w83627hf_write_value(data, W83781D_REG_IN_MAX(i),
 428                                      data->in_max[i]);
 429                 w83627hf_write_value(data, W83781D_REG_IN_MIN(i),
 430                                      data->in_min[i]);
 431         }
 432         for (i = 0; i <= 2; i++)
 433                 w83627hf_write_value(data, W83627HF_REG_FAN_MIN(i),
 434                                      data->fan_min[i]);
 435         for (i = 0; i < num_temps; i++) {
 436                 w83627hf_write_value(data, w83627hf_reg_temp_over[i],
 437                                      data->temp_max[i]);
 438                 w83627hf_write_value(data, w83627hf_reg_temp_hyst[i],
 439                                      data->temp_max_hyst[i]);
 440         }
 441 
 442         /* Fixup BIOS bugs */
 443         if (data->type == w83627thf || data->type == w83637hf ||
 444             data->type == w83687thf)
 445                 w83627hf_write_value(data, W83627THF_REG_VRM_OVT_CFG,
 446                                      data->vrm_ovt);
 447         w83627hf_write_value(data, W83781D_REG_SCFG1, data->scfg1);
 448         w83627hf_write_value(data, W83781D_REG_SCFG2, data->scfg2);
 449 
 450         /* Force re-reading all values */
 451         data->valid = 0;
 452         mutex_unlock(&data->update_lock);
 453 
 454         return 0;
 455 }
 456 
 457 static const struct dev_pm_ops w83627hf_dev_pm_ops = {
 458         .suspend = w83627hf_suspend,
 459         .resume = w83627hf_resume,
 460 };
 461 
 462 #define W83627HF_DEV_PM_OPS     (&w83627hf_dev_pm_ops)
 463 #else
 464 #define W83627HF_DEV_PM_OPS     NULL
 465 #endif /* CONFIG_PM */
 466 
 467 static struct platform_driver w83627hf_driver = {
 468         .driver = {
 469                 .name   = DRVNAME,
 470                 .pm     = W83627HF_DEV_PM_OPS,
 471         },
 472         .probe          = w83627hf_probe,
 473         .remove         = w83627hf_remove,
 474 };
 475 
 476 static ssize_t
 477 in_input_show(struct device *dev, struct device_attribute *devattr, char *buf)
 478 {
 479         int nr = to_sensor_dev_attr(devattr)->index;
 480         struct w83627hf_data *data = w83627hf_update_device(dev);
 481         return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in[nr]));
 482 }
 483 static ssize_t
 484 in_min_show(struct device *dev, struct device_attribute *devattr, char *buf)
 485 {
 486         int nr = to_sensor_dev_attr(devattr)->index;
 487         struct w83627hf_data *data = w83627hf_update_device(dev);
 488         return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_min[nr]));
 489 }
 490 static ssize_t
 491 in_max_show(struct device *dev, struct device_attribute *devattr, char *buf)
 492 {
 493         int nr = to_sensor_dev_attr(devattr)->index;
 494         struct w83627hf_data *data = w83627hf_update_device(dev);
 495         return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_max[nr]));
 496 }
 497 static ssize_t
 498 in_min_store(struct device *dev, struct device_attribute *devattr,
 499              const char *buf, size_t count)
 500 {
 501         int nr = to_sensor_dev_attr(devattr)->index;
 502         struct w83627hf_data *data = dev_get_drvdata(dev);
 503         long val;
 504         int err;
 505 
 506         err = kstrtol(buf, 10, &val);
 507         if (err)
 508                 return err;
 509 
 510         mutex_lock(&data->update_lock);
 511         data->in_min[nr] = IN_TO_REG(val);
 512         w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), data->in_min[nr]);
 513         mutex_unlock(&data->update_lock);
 514         return count;
 515 }
 516 static ssize_t
 517 in_max_store(struct device *dev, struct device_attribute *devattr,
 518              const char *buf, size_t count)
 519 {
 520         int nr = to_sensor_dev_attr(devattr)->index;
 521         struct w83627hf_data *data = dev_get_drvdata(dev);
 522         long val;
 523         int err;
 524 
 525         err = kstrtol(buf, 10, &val);
 526         if (err)
 527                 return err;
 528 
 529         mutex_lock(&data->update_lock);
 530         data->in_max[nr] = IN_TO_REG(val);
 531         w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), data->in_max[nr]);
 532         mutex_unlock(&data->update_lock);
 533         return count;
 534 }
 535 
 536 static SENSOR_DEVICE_ATTR_RO(in1_input, in_input, 1);
 537 static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1);
 538 static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1);
 539 static SENSOR_DEVICE_ATTR_RO(in2_input, in_input, 2);
 540 static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2);
 541 static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2);
 542 static SENSOR_DEVICE_ATTR_RO(in3_input, in_input, 3);
 543 static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3);
 544 static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3);
 545 static SENSOR_DEVICE_ATTR_RO(in4_input, in_input, 4);
 546 static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4);
 547 static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4);
 548 static SENSOR_DEVICE_ATTR_RO(in5_input, in_input, 5);
 549 static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5);
 550 static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5);
 551 static SENSOR_DEVICE_ATTR_RO(in6_input, in_input, 6);
 552 static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6);
 553 static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6);
 554 static SENSOR_DEVICE_ATTR_RO(in7_input, in_input, 7);
 555 static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7);
 556 static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7);
 557 static SENSOR_DEVICE_ATTR_RO(in8_input, in_input, 8);
 558 static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8);
 559 static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8);
 560 
 561 /* use a different set of functions for in0 */
 562 static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
 563 {
 564         long in0;
 565 
 566         if ((data->vrm_ovt & 0x01) &&
 567                 (w83627thf == data->type || w83637hf == data->type
 568                  || w83687thf == data->type))
 569 
 570                 /* use VRM9 calculation */
 571                 in0 = (long)((reg * 488 + 70000 + 50) / 100);
 572         else
 573                 /* use VRM8 (standard) calculation */
 574                 in0 = (long)IN_FROM_REG(reg);
 575 
 576         return sprintf(buf,"%ld\n", in0);
 577 }
 578 
 579 static ssize_t in0_input_show(struct device *dev,
 580                               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 
 586 static ssize_t in0_min_show(struct device *dev, struct device_attribute *attr,
 587                             char *buf)
 588 {
 589         struct w83627hf_data *data = w83627hf_update_device(dev);
 590         return show_in_0(data, buf, data->in_min[0]);
 591 }
 592 
 593 static ssize_t in0_max_show(struct device *dev, struct device_attribute *attr,
 594                             char *buf)
 595 {
 596         struct w83627hf_data *data = w83627hf_update_device(dev);
 597         return show_in_0(data, buf, data->in_max[0]);
 598 }
 599 
 600 static ssize_t in0_min_store(struct device *dev,
 601                              struct device_attribute *attr, const char *buf,
 602                              size_t count)
 603 {
 604         struct w83627hf_data *data = dev_get_drvdata(dev);
 605         unsigned long val;
 606         int err;
 607 
 608         err = kstrtoul(buf, 10, &val);
 609         if (err)
 610                 return err;
 611 
 612         mutex_lock(&data->update_lock);
 613         
 614         if ((data->vrm_ovt & 0x01) &&
 615                 (w83627thf == data->type || w83637hf == data->type
 616                  || w83687thf == data->type))
 617 
 618                 /* use VRM9 calculation */
 619                 data->in_min[0] =
 620                         clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);
 621         else
 622                 /* use VRM8 (standard) calculation */
 623                 data->in_min[0] = IN_TO_REG(val);
 624 
 625         w83627hf_write_value(data, W83781D_REG_IN_MIN(0), data->in_min[0]);
 626         mutex_unlock(&data->update_lock);
 627         return count;
 628 }
 629 
 630 static ssize_t in0_max_store(struct device *dev,
 631                              struct device_attribute *attr, const char *buf,
 632                              size_t count)
 633 {
 634         struct w83627hf_data *data = dev_get_drvdata(dev);
 635         unsigned long val;
 636         int err;
 637 
 638         err = kstrtoul(buf, 10, &val);
 639         if (err)
 640                 return err;
 641 
 642         mutex_lock(&data->update_lock);
 643 
 644         if ((data->vrm_ovt & 0x01) &&
 645                 (w83627thf == data->type || w83637hf == data->type
 646                  || w83687thf == data->type))
 647                 
 648                 /* use VRM9 calculation */
 649                 data->in_max[0] =
 650                         clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);
 651         else
 652                 /* use VRM8 (standard) calculation */
 653                 data->in_max[0] = IN_TO_REG(val);
 654 
 655         w83627hf_write_value(data, W83781D_REG_IN_MAX(0), data->in_max[0]);
 656         mutex_unlock(&data->update_lock);
 657         return count;
 658 }
 659 
 660 static DEVICE_ATTR_RO(in0_input);
 661 static DEVICE_ATTR_RW(in0_min);
 662 static DEVICE_ATTR_RW(in0_max);
 663 
 664 static ssize_t
 665 fan_input_show(struct device *dev, struct device_attribute *devattr,
 666                char *buf)
 667 {
 668         int nr = to_sensor_dev_attr(devattr)->index;
 669         struct w83627hf_data *data = w83627hf_update_device(dev);
 670         return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan[nr],
 671                                 (long)DIV_FROM_REG(data->fan_div[nr])));
 672 }
 673 static ssize_t
 674 fan_min_show(struct device *dev, struct device_attribute *devattr, char *buf)
 675 {
 676         int nr = to_sensor_dev_attr(devattr)->index;
 677         struct w83627hf_data *data = w83627hf_update_device(dev);
 678         return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan_min[nr],
 679                                 (long)DIV_FROM_REG(data->fan_div[nr])));
 680 }
 681 static ssize_t
 682 fan_min_store(struct device *dev, struct device_attribute *devattr,
 683               const char *buf, size_t count)
 684 {
 685         int nr = to_sensor_dev_attr(devattr)->index;
 686         struct w83627hf_data *data = dev_get_drvdata(dev);
 687         unsigned long val;
 688         int err;
 689 
 690         err = kstrtoul(buf, 10, &val);
 691         if (err)
 692                 return err;
 693 
 694         mutex_lock(&data->update_lock);
 695         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 696         w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),
 697                              data->fan_min[nr]);
 698 
 699         mutex_unlock(&data->update_lock);
 700         return count;
 701 }
 702 
 703 static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0);
 704 static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
 705 static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1);
 706 static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
 707 static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2);
 708 static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);
 709 
 710 static ssize_t
 711 temp_show(struct device *dev, struct device_attribute *devattr, char *buf)
 712 {
 713         int nr = to_sensor_dev_attr(devattr)->index;
 714         struct w83627hf_data *data = w83627hf_update_device(dev);
 715 
 716         u16 tmp = data->temp[nr];
 717         return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
 718                                           : (long) TEMP_FROM_REG(tmp));
 719 }
 720 
 721 static ssize_t
 722 temp_max_show(struct device *dev, struct device_attribute *devattr, char *buf)
 723 {
 724         int nr = to_sensor_dev_attr(devattr)->index;
 725         struct w83627hf_data *data = w83627hf_update_device(dev);
 726 
 727         u16 tmp = data->temp_max[nr];
 728         return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
 729                                           : (long) TEMP_FROM_REG(tmp));
 730 }
 731 
 732 static ssize_t
 733 temp_max_hyst_show(struct device *dev, struct device_attribute *devattr,
 734                    char *buf)
 735 {
 736         int nr = to_sensor_dev_attr(devattr)->index;
 737         struct w83627hf_data *data = w83627hf_update_device(dev);
 738 
 739         u16 tmp = data->temp_max_hyst[nr];
 740         return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
 741                                           : (long) TEMP_FROM_REG(tmp));
 742 }
 743 
 744 static ssize_t
 745 temp_max_store(struct device *dev, struct device_attribute *devattr,
 746                const char *buf, size_t count)
 747 {
 748         int nr = to_sensor_dev_attr(devattr)->index;
 749         struct w83627hf_data *data = dev_get_drvdata(dev);
 750         u16 tmp;
 751         long val;
 752         int err;
 753 
 754         err = kstrtol(buf, 10, &val);
 755         if (err)
 756                 return err;
 757 
 758         tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
 759         mutex_lock(&data->update_lock);
 760         data->temp_max[nr] = tmp;
 761         w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);
 762         mutex_unlock(&data->update_lock);
 763         return count;
 764 }
 765 
 766 static ssize_t
 767 temp_max_hyst_store(struct device *dev, struct device_attribute *devattr,
 768                     const char *buf, size_t count)
 769 {
 770         int nr = to_sensor_dev_attr(devattr)->index;
 771         struct w83627hf_data *data = dev_get_drvdata(dev);
 772         u16 tmp;
 773         long val;
 774         int err;
 775 
 776         err = kstrtol(buf, 10, &val);
 777         if (err)
 778                 return err;
 779 
 780         tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
 781         mutex_lock(&data->update_lock);
 782         data->temp_max_hyst[nr] = tmp;
 783         w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);
 784         mutex_unlock(&data->update_lock);
 785         return count;
 786 }
 787 
 788 static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
 789 static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
 790 static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, temp_max_hyst, 0);
 791 static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
 792 static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
 793 static SENSOR_DEVICE_ATTR_RW(temp2_max_hyst, temp_max_hyst, 1);
 794 static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);
 795 static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);
 796 static SENSOR_DEVICE_ATTR_RW(temp3_max_hyst, temp_max_hyst, 2);
 797 
 798 static ssize_t
 799 cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)
 800 {
 801         struct w83627hf_data *data = w83627hf_update_device(dev);
 802         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 803 }
 804 static DEVICE_ATTR_RO(cpu0_vid);
 805 
 806 static ssize_t
 807 vrm_show(struct device *dev, struct device_attribute *attr, char *buf)
 808 {
 809         struct w83627hf_data *data = dev_get_drvdata(dev);
 810         return sprintf(buf, "%ld\n", (long) data->vrm);
 811 }
 812 static ssize_t
 813 vrm_store(struct device *dev, struct device_attribute *attr, const char *buf,
 814           size_t count)
 815 {
 816         struct w83627hf_data *data = dev_get_drvdata(dev);
 817         unsigned long val;
 818         int err;
 819 
 820         err = kstrtoul(buf, 10, &val);
 821         if (err)
 822                 return err;
 823 
 824         if (val > 255)
 825                 return -EINVAL;
 826         data->vrm = val;
 827 
 828         return count;
 829 }
 830 static DEVICE_ATTR_RW(vrm);
 831 
 832 static ssize_t
 833 alarms_show(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 }
 838 static DEVICE_ATTR_RO(alarms);
 839 
 840 static ssize_t
 841 alarm_show(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 }
 847 static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0);
 848 static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1);
 849 static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2);
 850 static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3);
 851 static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8);
 852 static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 9);
 853 static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 10);
 854 static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 16);
 855 static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 17);
 856 static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6);
 857 static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7);
 858 static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 11);
 859 static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4);
 860 static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 5);
 861 static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 13);
 862 
 863 static ssize_t
 864 beep_mask_show(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 
 871 static ssize_t
 872 beep_mask_store(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 
 899 static DEVICE_ATTR_RW(beep_mask);
 900 
 901 static ssize_t
 902 beep_show(struct device *dev, struct device_attribute *attr, char *buf)
 903 {
 904         struct w83627hf_data *data = w83627hf_update_device(dev);
 905         int bitnr = to_sensor_dev_attr(attr)->index;
 906         return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
 907 }
 908 
 909 static ssize_t
 910 beep_store(struct device *dev, struct device_attribute *attr, const char *buf,
 911            size_t count)
 912 {
 913         struct w83627hf_data *data = dev_get_drvdata(dev);
 914         int bitnr = to_sensor_dev_attr(attr)->index;
 915         u8 reg;
 916         unsigned long bit;
 917         int err;
 918 
 919         err = kstrtoul(buf, 10, &bit);
 920         if (err)
 921                 return err;
 922 
 923         if (bit & ~1)
 924                 return -EINVAL;
 925 
 926         mutex_lock(&data->update_lock);
 927         if (bit)
 928                 data->beep_mask |= (1 << bitnr);
 929         else
 930                 data->beep_mask &= ~(1 << bitnr);
 931 
 932         if (bitnr < 8) {
 933                 reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
 934                 if (bit)
 935                         reg |= (1 << bitnr);
 936                 else
 937                         reg &= ~(1 << bitnr);
 938                 w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, reg);
 939         } else if (bitnr < 16) {
 940                 reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
 941                 if (bit)
 942                         reg |= (1 << (bitnr - 8));
 943                 else
 944                         reg &= ~(1 << (bitnr - 8));
 945                 w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, reg);
 946         } else {
 947                 reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
 948                 if (bit)
 949                         reg |= (1 << (bitnr - 16));
 950                 else
 951                         reg &= ~(1 << (bitnr - 16));
 952                 w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, reg);
 953         }
 954         mutex_unlock(&data->update_lock);
 955 
 956         return count;
 957 }
 958 
 959 static SENSOR_DEVICE_ATTR_RW(in0_beep, beep, 0);
 960 static SENSOR_DEVICE_ATTR_RW(in1_beep, beep, 1);
 961 static SENSOR_DEVICE_ATTR_RW(in2_beep, beep, 2);
 962 static SENSOR_DEVICE_ATTR_RW(in3_beep, beep, 3);
 963 static SENSOR_DEVICE_ATTR_RW(in4_beep, beep, 8);
 964 static SENSOR_DEVICE_ATTR_RW(in5_beep, beep, 9);
 965 static SENSOR_DEVICE_ATTR_RW(in6_beep, beep, 10);
 966 static SENSOR_DEVICE_ATTR_RW(in7_beep, beep, 16);
 967 static SENSOR_DEVICE_ATTR_RW(in8_beep, beep, 17);
 968 static SENSOR_DEVICE_ATTR_RW(fan1_beep, beep, 6);
 969 static SENSOR_DEVICE_ATTR_RW(fan2_beep, beep, 7);
 970 static SENSOR_DEVICE_ATTR_RW(fan3_beep, beep, 11);
 971 static SENSOR_DEVICE_ATTR_RW(temp1_beep, beep, 4);
 972 static SENSOR_DEVICE_ATTR_RW(temp2_beep, beep, 5);
 973 static SENSOR_DEVICE_ATTR_RW(temp3_beep, beep, 13);
 974 static SENSOR_DEVICE_ATTR_RW(beep_enable, beep, 15);
 975 
 976 static ssize_t
 977 fan_div_show(struct device *dev, struct device_attribute *devattr, char *buf)
 978 {
 979         int nr = to_sensor_dev_attr(devattr)->index;
 980         struct w83627hf_data *data = w83627hf_update_device(dev);
 981         return sprintf(buf, "%ld\n",
 982                        (long) DIV_FROM_REG(data->fan_div[nr]));
 983 }
 984 /*
 985  * Note: we save and restore the fan minimum here, because its value is
 986  * determined in part by the fan divisor.  This follows the principle of
 987  * least surprise; the user doesn't expect the fan minimum to change just
 988  * because the divisor changed.
 989  */
 990 static ssize_t
 991 fan_div_store(struct device *dev, struct device_attribute *devattr,
 992               const char *buf, size_t count)
 993 {
 994         int nr = to_sensor_dev_attr(devattr)->index;
 995         struct w83627hf_data *data = dev_get_drvdata(dev);
 996         unsigned long min;
 997         u8 reg;
 998         unsigned long val;
 999         int err;
1000 
1001         err = kstrtoul(buf, 10, &val);
1002         if (err)
1003                 return err;
1004 
1005         mutex_lock(&data->update_lock);
1006 
1007         /* Save fan_min */
1008         min = FAN_FROM_REG(data->fan_min[nr],
1009                            DIV_FROM_REG(data->fan_div[nr]));
1010 
1011         data->fan_div[nr] = DIV_TO_REG(val);
1012 
1013         reg = (w83627hf_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
1014                & (nr==0 ? 0xcf : 0x3f))
1015             | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
1016         w83627hf_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
1017 
1018         reg = (w83627hf_read_value(data, W83781D_REG_VBAT)
1019                & ~(1 << (5 + nr)))
1020             | ((data->fan_div[nr] & 0x04) << (3 + nr));
1021         w83627hf_write_value(data, W83781D_REG_VBAT, reg);
1022 
1023         /* Restore fan_min */
1024         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
1025         w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), data->fan_min[nr]);
1026 
1027         mutex_unlock(&data->update_lock);
1028         return count;
1029 }
1030 
1031 static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);
1032 static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);
1033 static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);
1034 
1035 static ssize_t
1036 pwm_show(struct device *dev, struct device_attribute *devattr, char *buf)
1037 {
1038         int nr = to_sensor_dev_attr(devattr)->index;
1039         struct w83627hf_data *data = w83627hf_update_device(dev);
1040         return sprintf(buf, "%ld\n", (long) data->pwm[nr]);
1041 }
1042 
1043 static ssize_t
1044 pwm_store(struct device *dev, struct device_attribute *devattr,
1045           const char *buf, size_t count)
1046 {
1047         int nr = to_sensor_dev_attr(devattr)->index;
1048         struct w83627hf_data *data = dev_get_drvdata(dev);
1049         unsigned long val;
1050         int err;
1051 
1052         err = kstrtoul(buf, 10, &val);
1053         if (err)
1054                 return err;
1055 
1056         mutex_lock(&data->update_lock);
1057 
1058         if (data->type == w83627thf) {
1059                 /* bits 0-3 are reserved  in 627THF */
1060                 data->pwm[nr] = PWM_TO_REG(val) & 0xf0;
1061                 w83627hf_write_value(data,
1062                                      W836X7HF_REG_PWM(data->type, nr),
1063                                      data->pwm[nr] |
1064                                      (w83627hf_read_value(data,
1065                                      W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
1066         } else {
1067                 data->pwm[nr] = PWM_TO_REG(val);
1068                 w83627hf_write_value(data,
1069                                      W836X7HF_REG_PWM(data->type, nr),
1070                                      data->pwm[nr]);
1071         }
1072 
1073         mutex_unlock(&data->update_lock);
1074         return count;
1075 }
1076 
1077 static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);
1078 static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1);
1079 static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2);
1080 
1081 static ssize_t
1082 pwm_enable_show(struct device *dev, struct device_attribute *devattr,
1083                 char *buf)
1084 {
1085         int nr = to_sensor_dev_attr(devattr)->index;
1086         struct w83627hf_data *data = w83627hf_update_device(dev);
1087         return sprintf(buf, "%d\n", data->pwm_enable[nr]);
1088 }
1089 
1090 static ssize_t
1091 pwm_enable_store(struct device *dev, struct device_attribute *devattr,
1092                  const char *buf, size_t count)
1093 {
1094         int nr = to_sensor_dev_attr(devattr)->index;
1095         struct w83627hf_data *data = dev_get_drvdata(dev);
1096         u8 reg;
1097         unsigned long val;
1098         int err;
1099 
1100         err = kstrtoul(buf, 10, &val);
1101         if (err)
1102                 return err;
1103 
1104         if (!val || val > 3)    /* modes 1, 2 and 3 are supported */
1105                 return -EINVAL;
1106         mutex_lock(&data->update_lock);
1107         data->pwm_enable[nr] = val;
1108         reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
1109         reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
1110         reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
1111         w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
1112         mutex_unlock(&data->update_lock);
1113         return count;
1114 }
1115 
1116 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0);
1117 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1);
1118 static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_enable, 2);
1119 
1120 static ssize_t
1121 pwm_freq_show(struct device *dev, struct device_attribute *devattr, char *buf)
1122 {
1123         int nr = to_sensor_dev_attr(devattr)->index;
1124         struct w83627hf_data *data = w83627hf_update_device(dev);
1125         if (data->type == w83627hf)
1126                 return sprintf(buf, "%ld\n",
1127                         pwm_freq_from_reg_627hf(data->pwm_freq[nr]));
1128         else
1129                 return sprintf(buf, "%ld\n",
1130                         pwm_freq_from_reg(data->pwm_freq[nr]));
1131 }
1132 
1133 static ssize_t
1134 pwm_freq_store(struct device *dev, struct device_attribute *devattr,
1135                const char *buf, size_t count)
1136 {
1137         int nr = to_sensor_dev_attr(devattr)->index;
1138         struct w83627hf_data *data = dev_get_drvdata(dev);
1139         static const u8 mask[]={0xF8, 0x8F};
1140         unsigned long val;
1141         int err;
1142 
1143         err = kstrtoul(buf, 10, &val);
1144         if (err)
1145                 return err;
1146 
1147         mutex_lock(&data->update_lock);
1148 
1149         if (data->type == w83627hf) {
1150                 data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);
1151                 w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,
1152                                 (data->pwm_freq[nr] << (nr*4)) |
1153                                 (w83627hf_read_value(data,
1154                                 W83627HF_REG_PWM_FREQ) & mask[nr]));
1155         } else {
1156                 data->pwm_freq[nr] = pwm_freq_to_reg(val);
1157                 w83627hf_write_value(data, W83637HF_REG_PWM_FREQ[nr],
1158                                 data->pwm_freq[nr]);
1159         }
1160 
1161         mutex_unlock(&data->update_lock);
1162         return count;
1163 }
1164 
1165 static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0);
1166 static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1);
1167 static SENSOR_DEVICE_ATTR_RW(pwm3_freq, pwm_freq, 2);
1168 
1169 static ssize_t
1170 temp_type_show(struct device *dev, struct device_attribute *devattr,
1171                char *buf)
1172 {
1173         int nr = to_sensor_dev_attr(devattr)->index;
1174         struct w83627hf_data *data = w83627hf_update_device(dev);
1175         return sprintf(buf, "%ld\n", (long) data->sens[nr]);
1176 }
1177 
1178 static ssize_t
1179 temp_type_store(struct device *dev, struct device_attribute *devattr,
1180                 const char *buf, size_t count)
1181 {
1182         int nr = to_sensor_dev_attr(devattr)->index;
1183         struct w83627hf_data *data = dev_get_drvdata(dev);
1184         unsigned long val;
1185         u32 tmp;
1186         int err;
1187 
1188         err = kstrtoul(buf, 10, &val);
1189         if (err)
1190                 return err;
1191 
1192         mutex_lock(&data->update_lock);
1193 
1194         switch (val) {
1195         case 1:         /* PII/Celeron diode */
1196                 tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1197                 w83627hf_write_value(data, W83781D_REG_SCFG1,
1198                                     tmp | BIT_SCFG1[nr]);
1199                 tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
1200                 w83627hf_write_value(data, W83781D_REG_SCFG2,
1201                                     tmp | BIT_SCFG2[nr]);
1202                 data->sens[nr] = val;
1203                 break;
1204         case 2:         /* 3904 */
1205                 tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1206                 w83627hf_write_value(data, W83781D_REG_SCFG1,
1207                                     tmp | BIT_SCFG1[nr]);
1208                 tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
1209                 w83627hf_write_value(data, W83781D_REG_SCFG2,
1210                                     tmp & ~BIT_SCFG2[nr]);
1211                 data->sens[nr] = val;
1212                 break;
1213         case W83781D_DEFAULT_BETA:
1214                 dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
1215                          "instead\n", W83781D_DEFAULT_BETA);
1216                 /* fall through */
1217         case 4:         /* thermistor */
1218                 tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1219                 w83627hf_write_value(data, W83781D_REG_SCFG1,
1220                                     tmp & ~BIT_SCFG1[nr]);
1221                 data->sens[nr] = val;
1222                 break;
1223         default:
1224                 dev_err(dev,
1225                        "Invalid sensor type %ld; must be 1, 2, or 4\n",
1226                        (long) val);
1227                 break;
1228         }
1229 
1230         mutex_unlock(&data->update_lock);
1231         return count;
1232 }
1233 
1234 static SENSOR_DEVICE_ATTR_RW(temp1_type, temp_type, 0);
1235 static SENSOR_DEVICE_ATTR_RW(temp2_type, temp_type, 1);
1236 static SENSOR_DEVICE_ATTR_RW(temp3_type, temp_type, 2);
1237 
1238 static ssize_t
1239 name_show(struct device *dev, struct device_attribute *devattr, char *buf)
1240 {
1241         struct w83627hf_data *data = dev_get_drvdata(dev);
1242 
1243         return sprintf(buf, "%s\n", data->name);
1244 }
1245 static DEVICE_ATTR_RO(name);
1246 
1247 static int __init w83627hf_find(int sioaddr, unsigned short *addr,
1248                                 struct w83627hf_sio_data *sio_data)
1249 {
1250         int err;
1251         u16 val;
1252 
1253         static __initconst char *const names[] = {
1254                 "W83627HF",
1255                 "W83627THF",
1256                 "W83697HF",
1257                 "W83637HF",
1258                 "W83687THF",
1259         };
1260 
1261         sio_data->sioaddr = sioaddr;
1262         err = superio_enter(sio_data);
1263         if (err)
1264                 return err;
1265 
1266         err = -ENODEV;
1267         val = force_id ? force_id : superio_inb(sio_data, DEVID);
1268         switch (val) {
1269         case W627_DEVID:
1270                 sio_data->type = w83627hf;
1271                 break;
1272         case W627THF_DEVID:
1273                 sio_data->type = w83627thf;
1274                 break;
1275         case W697_DEVID:
1276                 sio_data->type = w83697hf;
1277                 break;
1278         case W637_DEVID:
1279                 sio_data->type = w83637hf;
1280                 break;
1281         case W687THF_DEVID:
1282                 sio_data->type = w83687thf;
1283                 break;
1284         case 0xff:      /* No device at all */
1285                 goto exit;
1286         default:
1287                 pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
1288                 goto exit;
1289         }
1290 
1291         superio_select(sio_data, W83627HF_LD_HWM);
1292         val = (superio_inb(sio_data, WINB_BASE_REG) << 8) |
1293                superio_inb(sio_data, WINB_BASE_REG + 1);
1294         *addr = val & WINB_ALIGNMENT;
1295         if (*addr == 0) {
1296                 pr_warn("Base address not set, skipping\n");
1297                 goto exit;
1298         }
1299 
1300         val = superio_inb(sio_data, WINB_ACT_REG);
1301         if (!(val & 0x01)) {
1302                 pr_warn("Enabling HWM logical device\n");
1303                 superio_outb(sio_data, WINB_ACT_REG, val | 0x01);
1304         }
1305 
1306         err = 0;
1307         pr_info(DRVNAME ": Found %s chip at %#x\n",
1308                 names[sio_data->type], *addr);
1309 
1310  exit:
1311         superio_exit(sio_data);
1312         return err;
1313 }
1314 
1315 #define VIN_UNIT_ATTRS(_X_)     \
1316         &sensor_dev_attr_in##_X_##_input.dev_attr.attr,         \
1317         &sensor_dev_attr_in##_X_##_min.dev_attr.attr,           \
1318         &sensor_dev_attr_in##_X_##_max.dev_attr.attr,           \
1319         &sensor_dev_attr_in##_X_##_alarm.dev_attr.attr,         \
1320         &sensor_dev_attr_in##_X_##_beep.dev_attr.attr
1321 
1322 #define FAN_UNIT_ATTRS(_X_)     \
1323         &sensor_dev_attr_fan##_X_##_input.dev_attr.attr,        \
1324         &sensor_dev_attr_fan##_X_##_min.dev_attr.attr,          \
1325         &sensor_dev_attr_fan##_X_##_div.dev_attr.attr,          \
1326         &sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr,        \
1327         &sensor_dev_attr_fan##_X_##_beep.dev_attr.attr
1328 
1329 #define TEMP_UNIT_ATTRS(_X_)    \
1330         &sensor_dev_attr_temp##_X_##_input.dev_attr.attr,       \
1331         &sensor_dev_attr_temp##_X_##_max.dev_attr.attr,         \
1332         &sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr,    \
1333         &sensor_dev_attr_temp##_X_##_type.dev_attr.attr,        \
1334         &sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr,       \
1335         &sensor_dev_attr_temp##_X_##_beep.dev_attr.attr
1336 
1337 static struct attribute *w83627hf_attributes[] = {
1338         &dev_attr_in0_input.attr,
1339         &dev_attr_in0_min.attr,
1340         &dev_attr_in0_max.attr,
1341         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1342         &sensor_dev_attr_in0_beep.dev_attr.attr,
1343         VIN_UNIT_ATTRS(2),
1344         VIN_UNIT_ATTRS(3),
1345         VIN_UNIT_ATTRS(4),
1346         VIN_UNIT_ATTRS(7),
1347         VIN_UNIT_ATTRS(8),
1348 
1349         FAN_UNIT_ATTRS(1),
1350         FAN_UNIT_ATTRS(2),
1351 
1352         TEMP_UNIT_ATTRS(1),
1353         TEMP_UNIT_ATTRS(2),
1354 
1355         &dev_attr_alarms.attr,
1356         &sensor_dev_attr_beep_enable.dev_attr.attr,
1357         &dev_attr_beep_mask.attr,
1358 
1359         &sensor_dev_attr_pwm1.dev_attr.attr,
1360         &sensor_dev_attr_pwm2.dev_attr.attr,
1361         &dev_attr_name.attr,
1362         NULL
1363 };
1364 
1365 static const struct attribute_group w83627hf_group = {
1366         .attrs = w83627hf_attributes,
1367 };
1368 
1369 static struct attribute *w83627hf_attributes_opt[] = {
1370         VIN_UNIT_ATTRS(1),
1371         VIN_UNIT_ATTRS(5),
1372         VIN_UNIT_ATTRS(6),
1373 
1374         FAN_UNIT_ATTRS(3),
1375         TEMP_UNIT_ATTRS(3),
1376         &sensor_dev_attr_pwm3.dev_attr.attr,
1377 
1378         &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1379         &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1380         &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1381 
1382         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1383         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1384         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1385 
1386         NULL
1387 };
1388 
1389 static const struct attribute_group w83627hf_group_opt = {
1390         .attrs = w83627hf_attributes_opt,
1391 };
1392 
1393 static int w83627hf_probe(struct platform_device *pdev)
1394 {
1395         struct device *dev = &pdev->dev;
1396         struct w83627hf_sio_data *sio_data = dev_get_platdata(dev);
1397         struct w83627hf_data *data;
1398         struct resource *res;
1399         int err, i;
1400 
1401         static const char *names[] = {
1402                 "w83627hf",
1403                 "w83627thf",
1404                 "w83697hf",
1405                 "w83637hf",
1406                 "w83687thf",
1407         };
1408 
1409         res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1410         if (!devm_request_region(dev, res->start, WINB_REGION_SIZE, DRVNAME)) {
1411                 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
1412                         (unsigned long)res->start,
1413                         (unsigned long)(res->start + WINB_REGION_SIZE - 1));
1414                 return -EBUSY;
1415         }
1416 
1417         data = devm_kzalloc(dev, sizeof(struct w83627hf_data), GFP_KERNEL);
1418         if (!data)
1419                 return -ENOMEM;
1420 
1421         data->addr = res->start;
1422         data->type = sio_data->type;
1423         data->name = names[sio_data->type];
1424         mutex_init(&data->lock);
1425         mutex_init(&data->update_lock);
1426         platform_set_drvdata(pdev, data);
1427 
1428         /* Initialize the chip */
1429         w83627hf_init_device(pdev);
1430 
1431         /* A few vars need to be filled upon startup */
1432         for (i = 0; i <= 2; i++)
1433                 data->fan_min[i] = w83627hf_read_value(
1434                                         data, W83627HF_REG_FAN_MIN(i));
1435         w83627hf_update_fan_div(data);
1436 
1437         /* Register common device attributes */
1438         err = sysfs_create_group(&dev->kobj, &w83627hf_group);
1439         if (err)
1440                 return err;
1441 
1442         /* Register chip-specific device attributes */
1443         if (data->type == w83627hf || data->type == w83697hf)
1444                 if ((err = device_create_file(dev,
1445                                 &sensor_dev_attr_in5_input.dev_attr))
1446                  || (err = device_create_file(dev,
1447                                 &sensor_dev_attr_in5_min.dev_attr))
1448                  || (err = device_create_file(dev,
1449                                 &sensor_dev_attr_in5_max.dev_attr))
1450                  || (err = device_create_file(dev,
1451                                 &sensor_dev_attr_in5_alarm.dev_attr))
1452                  || (err = device_create_file(dev,
1453                                 &sensor_dev_attr_in5_beep.dev_attr))
1454                  || (err = device_create_file(dev,
1455                                 &sensor_dev_attr_in6_input.dev_attr))
1456                  || (err = device_create_file(dev,
1457                                 &sensor_dev_attr_in6_min.dev_attr))
1458                  || (err = device_create_file(dev,
1459                                 &sensor_dev_attr_in6_max.dev_attr))
1460                  || (err = device_create_file(dev,
1461                                 &sensor_dev_attr_in6_alarm.dev_attr))
1462                  || (err = device_create_file(dev,
1463                                 &sensor_dev_attr_in6_beep.dev_attr))
1464                  || (err = device_create_file(dev,
1465                                 &sensor_dev_attr_pwm1_freq.dev_attr))
1466                  || (err = device_create_file(dev,
1467                                 &sensor_dev_attr_pwm2_freq.dev_attr)))
1468                         goto error;
1469 
1470         if (data->type != w83697hf)
1471                 if ((err = device_create_file(dev,
1472                                 &sensor_dev_attr_in1_input.dev_attr))
1473                  || (err = device_create_file(dev,
1474                                 &sensor_dev_attr_in1_min.dev_attr))
1475                  || (err = device_create_file(dev,
1476                                 &sensor_dev_attr_in1_max.dev_attr))
1477                  || (err = device_create_file(dev,
1478                                 &sensor_dev_attr_in1_alarm.dev_attr))
1479                  || (err = device_create_file(dev,
1480                                 &sensor_dev_attr_in1_beep.dev_attr))
1481                  || (err = device_create_file(dev,
1482                                 &sensor_dev_attr_fan3_input.dev_attr))
1483                  || (err = device_create_file(dev,
1484                                 &sensor_dev_attr_fan3_min.dev_attr))
1485                  || (err = device_create_file(dev,
1486                                 &sensor_dev_attr_fan3_div.dev_attr))
1487                  || (err = device_create_file(dev,
1488                                 &sensor_dev_attr_fan3_alarm.dev_attr))
1489                  || (err = device_create_file(dev,
1490                                 &sensor_dev_attr_fan3_beep.dev_attr))
1491                  || (err = device_create_file(dev,
1492                                 &sensor_dev_attr_temp3_input.dev_attr))
1493                  || (err = device_create_file(dev,
1494                                 &sensor_dev_attr_temp3_max.dev_attr))
1495                  || (err = device_create_file(dev,
1496                                 &sensor_dev_attr_temp3_max_hyst.dev_attr))
1497                  || (err = device_create_file(dev,
1498                                 &sensor_dev_attr_temp3_alarm.dev_attr))
1499                  || (err = device_create_file(dev,
1500                                 &sensor_dev_attr_temp3_beep.dev_attr))
1501                  || (err = device_create_file(dev,
1502                                 &sensor_dev_attr_temp3_type.dev_attr)))
1503                         goto error;
1504 
1505         if (data->type != w83697hf && data->vid != 0xff) {
1506                 /* Convert VID to voltage based on VRM */
1507                 data->vrm = vid_which_vrm();
1508 
1509                 if ((err = device_create_file(dev, &dev_attr_cpu0_vid))
1510                  || (err = device_create_file(dev, &dev_attr_vrm)))
1511                         goto error;
1512         }
1513 
1514         if (data->type == w83627thf || data->type == w83637hf
1515             || data->type == w83687thf) {
1516                 err = device_create_file(dev, &sensor_dev_attr_pwm3.dev_attr);
1517                 if (err)
1518                         goto error;
1519         }
1520 
1521         if (data->type == w83637hf || data->type == w83687thf)
1522                 if ((err = device_create_file(dev,
1523                                 &sensor_dev_attr_pwm1_freq.dev_attr))
1524                  || (err = device_create_file(dev,
1525                                 &sensor_dev_attr_pwm2_freq.dev_attr))
1526                  || (err = device_create_file(dev,
1527                                 &sensor_dev_attr_pwm3_freq.dev_attr)))
1528                         goto error;
1529 
1530         if (data->type != w83627hf)
1531                 if ((err = device_create_file(dev,
1532                                 &sensor_dev_attr_pwm1_enable.dev_attr))
1533                  || (err = device_create_file(dev,
1534                                 &sensor_dev_attr_pwm2_enable.dev_attr)))
1535                         goto error;
1536 
1537         if (data->type == w83627thf || data->type == w83637hf
1538             || data->type == w83687thf) {
1539                 err = device_create_file(dev,
1540                                          &sensor_dev_attr_pwm3_enable.dev_attr);
1541                 if (err)
1542                         goto error;
1543         }
1544 
1545         data->hwmon_dev = hwmon_device_register(dev);
1546         if (IS_ERR(data->hwmon_dev)) {
1547                 err = PTR_ERR(data->hwmon_dev);
1548                 goto error;
1549         }
1550 
1551         return 0;
1552 
1553  error:
1554         sysfs_remove_group(&dev->kobj, &w83627hf_group);
1555         sysfs_remove_group(&dev->kobj, &w83627hf_group_opt);
1556         return err;
1557 }
1558 
1559 static int w83627hf_remove(struct platform_device *pdev)
1560 {
1561         struct w83627hf_data *data = platform_get_drvdata(pdev);
1562 
1563         hwmon_device_unregister(data->hwmon_dev);
1564 
1565         sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group);
1566         sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group_opt);
1567 
1568         return 0;
1569 }
1570 
1571 /* Registers 0x50-0x5f are banked */
1572 static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
1573 {
1574         if ((reg & 0x00f0) == 0x50) {
1575                 outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
1576                 outb_p(reg >> 8, data->addr + W83781D_DATA_REG_OFFSET);
1577         }
1578 }
1579 
1580 /* Not strictly necessary, but play it safe for now */
1581 static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
1582 {
1583         if (reg & 0xff00) {
1584                 outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
1585                 outb_p(0, data->addr + W83781D_DATA_REG_OFFSET);
1586         }
1587 }
1588 
1589 static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)
1590 {
1591         int res, word_sized;
1592 
1593         mutex_lock(&data->lock);
1594         word_sized = (((reg & 0xff00) == 0x100)
1595                    || ((reg & 0xff00) == 0x200))
1596                   && (((reg & 0x00ff) == 0x50)
1597                    || ((reg & 0x00ff) == 0x53)
1598                    || ((reg & 0x00ff) == 0x55));
1599         w83627hf_set_bank(data, reg);
1600         outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
1601         res = inb_p(data->addr + W83781D_DATA_REG_OFFSET);
1602         if (word_sized) {
1603                 outb_p((reg & 0xff) + 1,
1604                        data->addr + W83781D_ADDR_REG_OFFSET);
1605                 res =
1606                     (res << 8) + inb_p(data->addr +
1607                                        W83781D_DATA_REG_OFFSET);
1608         }
1609         w83627hf_reset_bank(data, reg);
1610         mutex_unlock(&data->lock);
1611         return res;
1612 }
1613 
1614 static int w83627thf_read_gpio5(struct platform_device *pdev)
1615 {
1616         struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev);
1617         int res = 0xff, sel;
1618 
1619         if (superio_enter(sio_data)) {
1620                 /*
1621                  * Some other driver reserved the address space for itself.
1622                  * We don't want to fail driver instantiation because of that,
1623                  * so display a warning and keep going.
1624                  */
1625                 dev_warn(&pdev->dev,
1626                          "Can not read VID data: Failed to enable SuperIO access\n");
1627                 return res;
1628         }
1629 
1630         superio_select(sio_data, W83627HF_LD_GPIO5);
1631 
1632         res = 0xff;
1633 
1634         /* Make sure these GPIO pins are enabled */
1635         if (!(superio_inb(sio_data, W83627THF_GPIO5_EN) & (1<<3))) {
1636                 dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n");
1637                 goto exit;
1638         }
1639 
1640         /*
1641          * Make sure the pins are configured for input
1642          * There must be at least five (VRM 9), and possibly 6 (VRM 10)
1643          */
1644         sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f;
1645         if ((sel & 0x1f) != 0x1f) {
1646                 dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
1647                         "function\n");
1648                 goto exit;
1649         }
1650 
1651         dev_info(&pdev->dev, "Reading VID from GPIO5\n");
1652         res = superio_inb(sio_data, W83627THF_GPIO5_DR) & sel;
1653 
1654 exit:
1655         superio_exit(sio_data);
1656         return res;
1657 }
1658 
1659 static int w83687thf_read_vid(struct platform_device *pdev)
1660 {
1661         struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev);
1662         int res = 0xff;
1663 
1664         if (superio_enter(sio_data)) {
1665                 /*
1666                  * Some other driver reserved the address space for itself.
1667                  * We don't want to fail driver instantiation because of that,
1668                  * so display a warning and keep going.
1669                  */
1670                 dev_warn(&pdev->dev,
1671                          "Can not read VID data: Failed to enable SuperIO access\n");
1672                 return res;
1673         }
1674 
1675         superio_select(sio_data, W83627HF_LD_HWM);
1676 
1677         /* Make sure these GPIO pins are enabled */
1678         if (!(superio_inb(sio_data, W83687THF_VID_EN) & (1 << 2))) {
1679                 dev_dbg(&pdev->dev, "VID disabled, no VID function\n");
1680                 goto exit;
1681         }
1682 
1683         /* Make sure the pins are configured for input */
1684         if (!(superio_inb(sio_data, W83687THF_VID_CFG) & (1 << 4))) {
1685                 dev_dbg(&pdev->dev, "VID configured as output, "
1686                         "no VID function\n");
1687                 goto exit;
1688         }
1689 
1690         res = superio_inb(sio_data, W83687THF_VID_DATA) & 0x3f;
1691 
1692 exit:
1693         superio_exit(sio_data);
1694         return res;
1695 }
1696 
1697 static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value)
1698 {
1699         int word_sized;
1700 
1701         mutex_lock(&data->lock);
1702         word_sized = (((reg & 0xff00) == 0x100)
1703                    || ((reg & 0xff00) == 0x200))
1704                   && (((reg & 0x00ff) == 0x53)
1705                    || ((reg & 0x00ff) == 0x55));
1706         w83627hf_set_bank(data, reg);
1707         outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
1708         if (word_sized) {
1709                 outb_p(value >> 8,
1710                        data->addr + W83781D_DATA_REG_OFFSET);
1711                 outb_p((reg & 0xff) + 1,
1712                        data->addr + W83781D_ADDR_REG_OFFSET);
1713         }
1714         outb_p(value & 0xff,
1715                data->addr + W83781D_DATA_REG_OFFSET);
1716         w83627hf_reset_bank(data, reg);
1717         mutex_unlock(&data->lock);
1718         return 0;
1719 }
1720 
1721 static void w83627hf_init_device(struct platform_device *pdev)
1722 {
1723         struct w83627hf_data *data = platform_get_drvdata(pdev);
1724         int i;
1725         enum chips type = data->type;
1726         u8 tmp;
1727 
1728         /* Minimize conflicts with other winbond i2c-only clients...  */
1729         /* disable i2c subclients... how to disable main i2c client?? */
1730         /* force i2c address to relatively uncommon address */
1731         if (type == w83627hf) {
1732                 w83627hf_write_value(data, W83781D_REG_I2C_SUBADDR, 0x89);
1733                 w83627hf_write_value(data, W83781D_REG_I2C_ADDR, force_i2c);
1734         }
1735 
1736         /* Read VID only once */
1737         if (type == w83627hf || type == w83637hf) {
1738                 int lo = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
1739                 int hi = w83627hf_read_value(data, W83781D_REG_CHIPID);
1740                 data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
1741         } else if (type == w83627thf) {
1742                 data->vid = w83627thf_read_gpio5(pdev);
1743         } else if (type == w83687thf) {
1744                 data->vid = w83687thf_read_vid(pdev);
1745         }
1746 
1747         /* Read VRM & OVT Config only once */
1748         if (type == w83627thf || type == w83637hf || type == w83687thf) {
1749                 data->vrm_ovt = 
1750                         w83627hf_read_value(data, W83627THF_REG_VRM_OVT_CFG);
1751         }
1752 
1753         tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
1754         for (i = 1; i <= 3; i++) {
1755                 if (!(tmp & BIT_SCFG1[i - 1])) {
1756                         data->sens[i - 1] = 4;
1757                 } else {
1758                         if (w83627hf_read_value
1759                             (data,
1760                              W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
1761                                 data->sens[i - 1] = 1;
1762                         else
1763                                 data->sens[i - 1] = 2;
1764                 }
1765                 if ((type == w83697hf) && (i == 2))
1766                         break;
1767         }
1768 
1769         if(init) {
1770                 /* Enable temp2 */
1771                 tmp = w83627hf_read_value(data, W83627HF_REG_TEMP2_CONFIG);
1772                 if (tmp & 0x01) {
1773                         dev_warn(&pdev->dev, "Enabling temp2, readings "
1774                                  "might not make sense\n");
1775                         w83627hf_write_value(data, W83627HF_REG_TEMP2_CONFIG,
1776                                 tmp & 0xfe);
1777                 }
1778 
1779                 /* Enable temp3 */
1780                 if (type != w83697hf) {
1781                         tmp = w83627hf_read_value(data,
1782                                 W83627HF_REG_TEMP3_CONFIG);
1783                         if (tmp & 0x01) {
1784                                 dev_warn(&pdev->dev, "Enabling temp3, "
1785                                          "readings might not make sense\n");
1786                                 w83627hf_write_value(data,
1787                                         W83627HF_REG_TEMP3_CONFIG, tmp & 0xfe);
1788                         }
1789                 }
1790         }
1791 
1792         /* Start monitoring */
1793         w83627hf_write_value(data, W83781D_REG_CONFIG,
1794                             (w83627hf_read_value(data,
1795                                                 W83781D_REG_CONFIG) & 0xf7)
1796                             | 0x01);
1797 
1798         /* Enable VBAT monitoring if needed */
1799         tmp = w83627hf_read_value(data, W83781D_REG_VBAT);
1800         if (!(tmp & 0x01))
1801                 w83627hf_write_value(data, W83781D_REG_VBAT, tmp | 0x01);
1802 }
1803 
1804 static void w83627hf_update_fan_div(struct w83627hf_data *data)
1805 {
1806         int reg;
1807 
1808         reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
1809         data->fan_div[0] = (reg >> 4) & 0x03;
1810         data->fan_div[1] = (reg >> 6) & 0x03;
1811         if (data->type != w83697hf) {
1812                 data->fan_div[2] = (w83627hf_read_value(data,
1813                                        W83781D_REG_PIN) >> 6) & 0x03;
1814         }
1815         reg = w83627hf_read_value(data, W83781D_REG_VBAT);
1816         data->fan_div[0] |= (reg >> 3) & 0x04;
1817         data->fan_div[1] |= (reg >> 4) & 0x04;
1818         if (data->type != w83697hf)
1819                 data->fan_div[2] |= (reg >> 5) & 0x04;
1820 }
1821 
1822 static struct w83627hf_data *w83627hf_update_device(struct device *dev)
1823 {
1824         struct w83627hf_data *data = dev_get_drvdata(dev);
1825         int i, num_temps = (data->type == w83697hf) ? 2 : 3;
1826         int num_pwms = (data->type == w83697hf) ? 2 : 3;
1827 
1828         mutex_lock(&data->update_lock);
1829 
1830         if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
1831             || !data->valid) {
1832                 for (i = 0; i <= 8; i++) {
1833                         /* skip missing sensors */
1834                         if (((data->type == w83697hf) && (i == 1)) ||
1835                             ((data->type != w83627hf && data->type != w83697hf)
1836                             && (i == 5 || i == 6)))
1837                                 continue;
1838                         data->in[i] =
1839                             w83627hf_read_value(data, W83781D_REG_IN(i));
1840                         data->in_min[i] =
1841                             w83627hf_read_value(data,
1842                                                W83781D_REG_IN_MIN(i));
1843                         data->in_max[i] =
1844                             w83627hf_read_value(data,
1845                                                W83781D_REG_IN_MAX(i));
1846                 }
1847                 for (i = 0; i <= 2; i++) {
1848                         data->fan[i] =
1849                             w83627hf_read_value(data, W83627HF_REG_FAN(i));
1850                         data->fan_min[i] =
1851                             w83627hf_read_value(data,
1852                                                W83627HF_REG_FAN_MIN(i));
1853                 }
1854                 for (i = 0; i <= 2; i++) {
1855                         u8 tmp = w83627hf_read_value(data,
1856                                 W836X7HF_REG_PWM(data->type, i));
1857                         /* bits 0-3 are reserved  in 627THF */
1858                         if (data->type == w83627thf)
1859                                 tmp &= 0xf0;
1860                         data->pwm[i] = tmp;
1861                         if (i == 1 &&
1862                             (data->type == w83627hf || data->type == w83697hf))
1863                                 break;
1864                 }
1865                 if (data->type == w83627hf) {
1866                                 u8 tmp = w83627hf_read_value(data,
1867                                                 W83627HF_REG_PWM_FREQ);
1868                                 data->pwm_freq[0] = tmp & 0x07;
1869                                 data->pwm_freq[1] = (tmp >> 4) & 0x07;
1870                 } else if (data->type != w83627thf) {
1871                         for (i = 1; i <= 3; i++) {
1872                                 data->pwm_freq[i - 1] =
1873                                         w83627hf_read_value(data,
1874                                                 W83637HF_REG_PWM_FREQ[i - 1]);
1875                                 if (i == 2 && (data->type == w83697hf))
1876                                         break;
1877                         }
1878                 }
1879                 if (data->type != w83627hf) {
1880                         for (i = 0; i < num_pwms; i++) {
1881                                 u8 tmp = w83627hf_read_value(data,
1882                                         W83627THF_REG_PWM_ENABLE[i]);
1883                                 data->pwm_enable[i] =
1884                                         ((tmp >> W83627THF_PWM_ENABLE_SHIFT[i])
1885                                         & 0x03) + 1;
1886                         }
1887                 }
1888                 for (i = 0; i < num_temps; i++) {
1889                         data->temp[i] = w83627hf_read_value(
1890                                                 data, w83627hf_reg_temp[i]);
1891                         data->temp_max[i] = w83627hf_read_value(
1892                                                 data, w83627hf_reg_temp_over[i]);
1893                         data->temp_max_hyst[i] = w83627hf_read_value(
1894                                                 data, w83627hf_reg_temp_hyst[i]);
1895                 }
1896 
1897                 w83627hf_update_fan_div(data);
1898 
1899                 data->alarms =
1900                     w83627hf_read_value(data, W83781D_REG_ALARM1) |
1901                     (w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
1902                     (w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
1903                 i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
1904                 data->beep_mask = (i << 8) |
1905                     w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
1906                     w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
1907                 data->last_updated = jiffies;
1908                 data->valid = 1;
1909         }
1910 
1911         mutex_unlock(&data->update_lock);
1912 
1913         return data;
1914 }
1915 
1916 static int __init w83627hf_device_add(unsigned short address,
1917                                       const struct w83627hf_sio_data *sio_data)
1918 {
1919         struct resource res = {
1920                 .start  = address + WINB_REGION_OFFSET,
1921                 .end    = address + WINB_REGION_OFFSET + WINB_REGION_SIZE - 1,
1922                 .name   = DRVNAME,
1923                 .flags  = IORESOURCE_IO,
1924         };
1925         int err;
1926 
1927         err = acpi_check_resource_conflict(&res);
1928         if (err)
1929                 goto exit;
1930 
1931         pdev = platform_device_alloc(DRVNAME, address);
1932         if (!pdev) {
1933                 err = -ENOMEM;
1934                 pr_err("Device allocation failed\n");
1935                 goto exit;
1936         }
1937 
1938         err = platform_device_add_resources(pdev, &res, 1);
1939         if (err) {
1940                 pr_err("Device resource addition failed (%d)\n", err);
1941                 goto exit_device_put;
1942         }
1943 
1944         err = platform_device_add_data(pdev, sio_data,
1945                                        sizeof(struct w83627hf_sio_data));
1946         if (err) {
1947                 pr_err("Platform data allocation failed\n");
1948                 goto exit_device_put;
1949         }
1950 
1951         err = platform_device_add(pdev);
1952         if (err) {
1953                 pr_err("Device addition failed (%d)\n", err);
1954                 goto exit_device_put;
1955         }
1956 
1957         return 0;
1958 
1959 exit_device_put:
1960         platform_device_put(pdev);
1961 exit:
1962         return err;
1963 }
1964 
1965 static int __init sensors_w83627hf_init(void)
1966 {
1967         int err;
1968         unsigned short address;
1969         struct w83627hf_sio_data sio_data;
1970 
1971         if (w83627hf_find(0x2e, &address, &sio_data)
1972          && w83627hf_find(0x4e, &address, &sio_data))
1973                 return -ENODEV;
1974 
1975         err = platform_driver_register(&w83627hf_driver);
1976         if (err)
1977                 goto exit;
1978 
1979         /* Sets global pdev as a side effect */
1980         err = w83627hf_device_add(address, &sio_data);
1981         if (err)
1982                 goto exit_driver;
1983 
1984         return 0;
1985 
1986 exit_driver:
1987         platform_driver_unregister(&w83627hf_driver);
1988 exit:
1989         return err;
1990 }
1991 
1992 static void __exit sensors_w83627hf_exit(void)
1993 {
1994         platform_device_unregister(pdev);
1995         platform_driver_unregister(&w83627hf_driver);
1996 }
1997 
1998 MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
1999               "Philip Edelbrock <phil@netroedge.com>, "
2000               "and Mark Studebaker <mdsxyz123@yahoo.com>");
2001 MODULE_DESCRIPTION("W83627HF driver");
2002 MODULE_LICENSE("GPL");
2003 
2004 module_init(sensors_w83627hf_init);
2005 module_exit(sensors_w83627hf_exit);
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/hwmon/w83627hf.c

DEFINITIONS
