2650 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring4 *5 * Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>6 * Copyright (c) 2004 Utilitek Systems, Inc.7 *8 * derived in part from lm78.c:9 * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>10 *11 * derived in part from lm85.c:12 * Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>13 * Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>14 *15 * derived in part from w83l785ts.c:16 * Copyright (c) 2003-2004 Jean Delvare <jdelvare@suse.de>17 *18 * Ported to Linux 2.6 by Eric J. Bowersox <ericb@aspsys.com>19 * Copyright (c) 2005 Aspen Systems, Inc.20 *21 * Adapted to 2.6.20 by Carsten Emde <cbe@osadl.org>22 * Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab23 *24 * Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>25 * Copyright (c) 2007 Hans J. Koch, Linutronix GmbH26 */27 28#include <linux/module.h>29#include <linux/init.h>30#include <linux/slab.h>31#include <linux/i2c.h>32#include <linux/hwmon.h>33#include <linux/hwmon-sysfs.h>34#include <linux/hwmon-vid.h>35#include <linux/err.h>36#include <linux/delay.h>37#include <linux/jiffies.h>38 39/* LM93 REGISTER ADDRESSES */40 41/* miscellaneous */42#define LM93_REG_MFR_ID 0x3e43#define LM93_REG_VER 0x3f44#define LM93_REG_STATUS_CONTROL 0xe245#define LM93_REG_CONFIG 0xe346#define LM93_REG_SLEEP_CONTROL 0xe447 48/* alarm values start here */49#define LM93_REG_HOST_ERROR_1 0x4850 51/* voltage inputs: in1-in16 (nr => 0-15) */52#define LM93_REG_IN(nr) (0x56 + (nr))53#define LM93_REG_IN_MIN(nr) (0x90 + (nr) * 2)54#define LM93_REG_IN_MAX(nr) (0x91 + (nr) * 2)55 56/* temperature inputs: temp1-temp4 (nr => 0-3) */57#define LM93_REG_TEMP(nr) (0x50 + (nr))58#define LM93_REG_TEMP_MIN(nr) (0x78 + (nr) * 2)59#define LM93_REG_TEMP_MAX(nr) (0x79 + (nr) * 2)60 61/* temp[1-4]_auto_boost (nr => 0-3) */62#define LM93_REG_BOOST(nr) (0x80 + (nr))63 64/* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */65#define LM93_REG_PROCHOT_CUR(nr) (0x67 + (nr) * 2)66#define LM93_REG_PROCHOT_AVG(nr) (0x68 + (nr) * 2)67#define LM93_REG_PROCHOT_MAX(nr) (0xb0 + (nr))68 69/* fan tach inputs: fan1-fan4 (nr => 0-3) */70#define LM93_REG_FAN(nr) (0x6e + (nr) * 2)71#define LM93_REG_FAN_MIN(nr) (0xb4 + (nr) * 2)72 73/* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */74#define LM93_REG_PWM_CTL(nr, reg) (0xc8 + (reg) + (nr) * 4)75#define LM93_PWM_CTL1 0x076#define LM93_PWM_CTL2 0x177#define LM93_PWM_CTL3 0x278#define LM93_PWM_CTL4 0x379 80/* GPIO input state */81#define LM93_REG_GPI 0x6b82 83/* vid inputs: vid1-vid2 (nr => 0-1) */84#define LM93_REG_VID(nr) (0x6c + (nr))85 86/* vccp1 & vccp2: VID relative inputs (nr => 0-1) */87#define LM93_REG_VCCP_LIMIT_OFF(nr) (0xb2 + (nr))88 89/* temp[1-4]_auto_boost_hyst */90#define LM93_REG_BOOST_HYST_12 0xc091#define LM93_REG_BOOST_HYST_34 0xc192#define LM93_REG_BOOST_HYST(nr) (0xc0 + (nr)/2)93 94/* temp[1-4]_auto_pwm_[min|hyst] */95#define LM93_REG_PWM_MIN_HYST_12 0xc396#define LM93_REG_PWM_MIN_HYST_34 0xc497#define LM93_REG_PWM_MIN_HYST(nr) (0xc3 + (nr)/2)98 99/* prochot_override & prochot_interval */100#define LM93_REG_PROCHOT_OVERRIDE 0xc6101#define LM93_REG_PROCHOT_INTERVAL 0xc7102 103/* temp[1-4]_auto_base (nr => 0-3) */104#define LM93_REG_TEMP_BASE(nr) (0xd0 + (nr))105 106/* temp[1-4]_auto_offsets (step => 0-11) */107#define LM93_REG_TEMP_OFFSET(step) (0xd4 + (step))108 109/* #PROCHOT & #VRDHOT PWM ramp control */110#define LM93_REG_PWM_RAMP_CTL 0xbf111 112/* miscellaneous */113#define LM93_REG_SFC1 0xbc114#define LM93_REG_SFC2 0xbd115#define LM93_REG_GPI_VID_CTL 0xbe116#define LM93_REG_SF_TACH_TO_PWM 0xe0117 118/* error masks */119#define LM93_REG_GPI_ERR_MASK 0xec120#define LM93_REG_MISC_ERR_MASK 0xed121 122/* LM93 REGISTER VALUES */123#define LM93_MFR_ID 0x73124#define LM93_MFR_ID_PROTOTYPE 0x72125 126/* LM94 REGISTER VALUES */127#define LM94_MFR_ID_2 0x7a128#define LM94_MFR_ID 0x79129#define LM94_MFR_ID_PROTOTYPE 0x78130 131/* SMBus capabilities */132#define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \133 I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA)134#define LM93_SMBUS_FUNC_MIN (I2C_FUNC_SMBUS_BYTE_DATA | \135 I2C_FUNC_SMBUS_WORD_DATA)136 137/* Addresses to scan */138static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };139 140/* Insmod parameters */141 142static bool disable_block;143module_param(disable_block, bool, 0);144MODULE_PARM_DESC(disable_block,145 "Set to non-zero to disable SMBus block data transactions.");146 147static bool init;148module_param(init, bool, 0);149MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");150 151static int vccp_limit_type[2] = {0, 0};152module_param_array(vccp_limit_type, int, NULL, 0);153MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");154 155static int vid_agtl;156module_param(vid_agtl, int, 0);157MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");158 159/* Driver data */160static struct i2c_driver lm93_driver;161 162/* LM93 BLOCK READ COMMANDS */163static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {164 { 0xf2, 8 },165 { 0xf3, 8 },166 { 0xf4, 6 },167 { 0xf5, 16 },168 { 0xf6, 4 },169 { 0xf7, 8 },170 { 0xf8, 12 },171 { 0xf9, 32 },172 { 0xfa, 8 },173 { 0xfb, 8 },174 { 0xfc, 16 },175 { 0xfd, 9 },176};177 178/*179 * ALARMS: SYSCTL format described further below180 * REG: 64 bits in 8 registers, as immediately below181 */182struct block1_t {183 u8 host_status_1;184 u8 host_status_2;185 u8 host_status_3;186 u8 host_status_4;187 u8 p1_prochot_status;188 u8 p2_prochot_status;189 u8 gpi_status;190 u8 fan_status;191};192 193/*194 * Client-specific data195 */196struct lm93_data {197 struct i2c_client *client;198 199 struct mutex update_lock;200 unsigned long last_updated; /* In jiffies */201 202 /* client update function */203 void (*update)(struct lm93_data *, struct i2c_client *);204 205 bool valid; /* true if following fields are valid */206 207 /* register values, arranged by block read groups */208 struct block1_t block1;209 210 /*211 * temp1 - temp4: unfiltered readings212 * temp1 - temp2: filtered readings213 */214 u8 block2[6];215 216 /* vin1 - vin16: readings */217 u8 block3[16];218 219 /* prochot1 - prochot2: readings */220 struct {221 u8 cur;222 u8 avg;223 } block4[2];224 225 /* fan counts 1-4 => 14-bits, LE, *left* justified */226 u16 block5[4];227 228 /* block6 has a lot of data we don't need */229 struct {230 u8 min;231 u8 max;232 } temp_lim[4];233 234 /* vin1 - vin16: low and high limits */235 struct {236 u8 min;237 u8 max;238 } block7[16];239 240 /* fan count limits 1-4 => same format as block5 */241 u16 block8[4];242 243 /* pwm control registers (2 pwms, 4 regs) */244 u8 block9[2][4];245 246 /* auto/pwm base temp and offset temp registers */247 struct {248 u8 base[4];249 u8 offset[12];250 } block10;251 252 /* master config register */253 u8 config;254 255 /* VID1 & VID2 => register format, 6-bits, right justified */256 u8 vid[2];257 258 /* prochot1 - prochot2: limits */259 u8 prochot_max[2];260 261 /* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */262 u8 vccp_limits[2];263 264 /* GPIO input state (register format, i.e. inverted) */265 u8 gpi;266 267 /* #PROCHOT override (register format) */268 u8 prochot_override;269 270 /* #PROCHOT intervals (register format) */271 u8 prochot_interval;272 273 /* Fan Boost Temperatures (register format) */274 u8 boost[4];275 276 /* Fan Boost Hysteresis (register format) */277 u8 boost_hyst[2];278 279 /* Temperature Zone Min. PWM & Hysteresis (register format) */280 u8 auto_pwm_min_hyst[2];281 282 /* #PROCHOT & #VRDHOT PWM Ramp Control */283 u8 pwm_ramp_ctl;284 285 /* miscellaneous setup regs */286 u8 sfc1;287 u8 sfc2;288 u8 sf_tach_to_pwm;289 290 /*291 * The two PWM CTL2 registers can read something other than what was292 * last written for the OVR_DC field (duty cycle override). So, we293 * save the user-commanded value here.294 */295 u8 pwm_override[2];296};297 298/*299 * VID: mV300 * REG: 6-bits, right justified, *always* using Intel VRM/VRD 10301 */302static int LM93_VID_FROM_REG(u8 reg)303{304 return vid_from_reg((reg & 0x3f), 100);305}306 307/* min, max, and nominal register values, per channel (u8) */308static const u8 lm93_vin_reg_min[16] = {309 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,310 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae,311};312static const u8 lm93_vin_reg_max[16] = {313 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,314 0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1,315};316/*317 * Values from the datasheet. They're here for documentation only.318 * static const u8 lm93_vin_reg_nom[16] = {319 * 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,320 * 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0,321 * };322 */323 324/* min, max, and nominal voltage readings, per channel (mV)*/325static const unsigned long lm93_vin_val_min[16] = {326 0, 0, 0, 0, 0, 0, 0, 0,327 0, 0, 0, 0, 0, 0, 0, 3000,328};329 330static const unsigned long lm93_vin_val_max[16] = {331 1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600,332 4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600,333};334/*335 * Values from the datasheet. They're here for documentation only.336 * static const unsigned long lm93_vin_val_nom[16] = {337 * 927, 927, 927, 1200, 1500, 1500, 1200, 1200,338 * 3300, 5000, 2500, 1969, 984, 984, 309, 3300,339 * };340 */341 342static unsigned LM93_IN_FROM_REG(int nr, u8 reg)343{344 const long uv_max = lm93_vin_val_max[nr] * 1000;345 const long uv_min = lm93_vin_val_min[nr] * 1000;346 347 const long slope = (uv_max - uv_min) /348 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);349 const long intercept = uv_min - slope * lm93_vin_reg_min[nr];350 351 return (slope * reg + intercept + 500) / 1000;352}353 354/*355 * IN: mV, limits determined by channel nr356 * REG: scaling determined by channel nr357 */358static u8 LM93_IN_TO_REG(int nr, unsigned val)359{360 /* range limit */361 const long mv = clamp_val(val,362 lm93_vin_val_min[nr], lm93_vin_val_max[nr]);363 364 /* try not to lose too much precision here */365 const long uv = mv * 1000;366 const long uv_max = lm93_vin_val_max[nr] * 1000;367 const long uv_min = lm93_vin_val_min[nr] * 1000;368 369 /* convert */370 const long slope = (uv_max - uv_min) /371 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);372 const long intercept = uv_min - slope * lm93_vin_reg_min[nr];373 374 u8 result = ((uv - intercept + (slope/2)) / slope);375 result = clamp_val(result,376 lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);377 return result;378}379 380/* vid in mV, upper == 0 indicates low limit, otherwise upper limit */381static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid)382{383 const long uv_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) :384 (((reg >> 0 & 0x0f) + 1) * -25000);385 const long uv_vid = vid * 1000;386 return (uv_vid + uv_offset + 5000) / 10000;387}388 389#define LM93_IN_MIN_FROM_REG(reg, vid) LM93_IN_REL_FROM_REG((reg), 0, (vid))390#define LM93_IN_MAX_FROM_REG(reg, vid) LM93_IN_REL_FROM_REG((reg), 1, (vid))391 392/*393 * vid in mV , upper == 0 indicates low limit, otherwise upper limit394 * upper also determines which nibble of the register is returned395 * (the other nibble will be 0x0)396 */397static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)398{399 long uv_offset = vid * 1000 - val * 10000;400 if (upper) {401 uv_offset = clamp_val(uv_offset, 12500, 200000);402 return (u8)((uv_offset / 12500 - 1) << 4);403 } else {404 uv_offset = clamp_val(uv_offset, -400000, -25000);405 return (u8)((uv_offset / -25000 - 1) << 0);406 }407}408 409/*410 * TEMP: 1/1000 degrees C (-128C to +127C)411 * REG: 1C/bit, two's complement412 */413static int LM93_TEMP_FROM_REG(u8 reg)414{415 return (s8)reg * 1000;416}417 418#define LM93_TEMP_MIN (-128000)419#define LM93_TEMP_MAX (127000)420 421/*422 * TEMP: 1/1000 degrees C (-128C to +127C)423 * REG: 1C/bit, two's complement424 */425static u8 LM93_TEMP_TO_REG(long temp)426{427 int ntemp = clamp_val(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);428 ntemp += (ntemp < 0 ? -500 : 500);429 return (u8)(ntemp / 1000);430}431 432/* Determine 4-bit temperature offset resolution */433static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)434{435 /* mode: 0 => 1C/bit, nonzero => 0.5C/bit */436 return sfc2 & (nr < 2 ? 0x10 : 0x20);437}438 439/*440 * This function is common to all 4-bit temperature offsets441 * reg is 4 bits right justified442 * mode 0 => 1C/bit, mode !0 => 0.5C/bit443 */444static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)445{446 return (reg & 0x0f) * (mode ? 5 : 10);447}448 449#define LM93_TEMP_OFFSET_MIN (0)450#define LM93_TEMP_OFFSET_MAX0 (150)451#define LM93_TEMP_OFFSET_MAX1 (75)452 453/*454 * This function is common to all 4-bit temperature offsets455 * returns 4 bits right justified456 * mode 0 => 1C/bit, mode !0 => 0.5C/bit457 */458static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)459{460 int factor = mode ? 5 : 10;461 462 off = clamp_val(off, LM93_TEMP_OFFSET_MIN,463 mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);464 return (u8)((off + factor/2) / factor);465}466 467/* 0 <= nr <= 3 */468static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)469{470 /* temp1-temp2 (nr=0,1) use lower nibble */471 if (nr < 2)472 return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);473 474 /* temp3-temp4 (nr=2,3) use upper nibble */475 else476 return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);477}478 479/*480 * TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero))481 * REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero)482 * 0 <= nr <= 3483 */484static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)485{486 u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);487 488 /* temp1-temp2 (nr=0,1) use lower nibble */489 if (nr < 2)490 return (old & 0xf0) | (new & 0x0f);491 492 /* temp3-temp4 (nr=2,3) use upper nibble */493 else494 return (new << 4 & 0xf0) | (old & 0x0f);495}496 497static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,498 int mode)499{500 u8 reg;501 502 switch (nr) {503 case 0:504 reg = data->boost_hyst[0] & 0x0f;505 break;506 case 1:507 reg = data->boost_hyst[0] >> 4 & 0x0f;508 break;509 case 2:510 reg = data->boost_hyst[1] & 0x0f;511 break;512 case 3:513 default:514 reg = data->boost_hyst[1] >> 4 & 0x0f;515 break;516 }517 518 return LM93_TEMP_FROM_REG(data->boost[nr]) -519 LM93_TEMP_OFFSET_FROM_REG(reg, mode);520}521 522static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,523 int nr, int mode)524{525 u8 reg = LM93_TEMP_OFFSET_TO_REG(526 (LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);527 528 switch (nr) {529 case 0:530 reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);531 break;532 case 1:533 reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);534 break;535 case 2:536 reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);537 break;538 case 3:539 default:540 reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);541 break;542 }543 544 return reg;545}546 547/*548 * PWM: 0-255 per sensors documentation549 * REG: 0-13 as mapped below... right justified550 */551enum pwm_freq { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ };552 553static int lm93_pwm_map[2][16] = {554 {555 0x00, /* 0.00% */ 0x40, /* 25.00% */556 0x50, /* 31.25% */ 0x60, /* 37.50% */557 0x70, /* 43.75% */ 0x80, /* 50.00% */558 0x90, /* 56.25% */ 0xa0, /* 62.50% */559 0xb0, /* 68.75% */ 0xc0, /* 75.00% */560 0xd0, /* 81.25% */ 0xe0, /* 87.50% */561 0xf0, /* 93.75% */ 0xff, /* 100.00% */562 0xff, 0xff, /* 14, 15 are reserved and should never occur */563 },564 {565 0x00, /* 0.00% */ 0x40, /* 25.00% */566 0x49, /* 28.57% */ 0x52, /* 32.14% */567 0x5b, /* 35.71% */ 0x64, /* 39.29% */568 0x6d, /* 42.86% */ 0x76, /* 46.43% */569 0x80, /* 50.00% */ 0x89, /* 53.57% */570 0x92, /* 57.14% */ 0xb6, /* 71.43% */571 0xdb, /* 85.71% */ 0xff, /* 100.00% */572 0xff, 0xff, /* 14, 15 are reserved and should never occur */573 },574};575 576static int LM93_PWM_FROM_REG(u8 reg, enum pwm_freq freq)577{578 return lm93_pwm_map[freq][reg & 0x0f];579}580 581/* round up to nearest match */582static u8 LM93_PWM_TO_REG(int pwm, enum pwm_freq freq)583{584 int i;585 for (i = 0; i < 13; i++)586 if (pwm <= lm93_pwm_map[freq][i])587 break;588 589 /* can fall through with i==13 */590 return (u8)i;591}592 593static int LM93_FAN_FROM_REG(u16 regs)594{595 const u16 count = le16_to_cpu(regs) >> 2;596 return count == 0 ? -1 : count == 0x3fff ? 0 : 1350000 / count;597}598 599/*600 * RPM: (82.5 to 1350000)601 * REG: 14-bits, LE, *left* justified602 */603static u16 LM93_FAN_TO_REG(long rpm)604{605 u16 count, regs;606 607 if (rpm == 0) {608 count = 0x3fff;609 } else {610 rpm = clamp_val(rpm, 1, 1000000);611 count = clamp_val((1350000 + rpm) / rpm, 1, 0x3ffe);612 }613 614 regs = count << 2;615 return cpu_to_le16(regs);616}617 618/*619 * PWM FREQ: HZ620 * REG: 0-7 as mapped below621 */622static int lm93_pwm_freq_map[8] = {623 22500, 96, 84, 72, 60, 48, 36, 12624};625 626static int LM93_PWM_FREQ_FROM_REG(u8 reg)627{628 return lm93_pwm_freq_map[reg & 0x07];629}630 631/* round up to nearest match */632static u8 LM93_PWM_FREQ_TO_REG(int freq)633{634 int i;635 for (i = 7; i > 0; i--)636 if (freq <= lm93_pwm_freq_map[i])637 break;638 639 /* can fall through with i==0 */640 return (u8)i;641}642 643/*644 * TIME: 1/100 seconds645 * REG: 0-7 as mapped below646 */647static int lm93_spinup_time_map[8] = {648 0, 10, 25, 40, 70, 100, 200, 400,649};650 651static int LM93_SPINUP_TIME_FROM_REG(u8 reg)652{653 return lm93_spinup_time_map[reg >> 5 & 0x07];654}655 656/* round up to nearest match */657static u8 LM93_SPINUP_TIME_TO_REG(int time)658{659 int i;660 for (i = 0; i < 7; i++)661 if (time <= lm93_spinup_time_map[i])662 break;663 664 /* can fall through with i==8 */665 return (u8)i;666}667 668#define LM93_RAMP_MIN 0669#define LM93_RAMP_MAX 75670 671static int LM93_RAMP_FROM_REG(u8 reg)672{673 return (reg & 0x0f) * 5;674}675 676/*677 * RAMP: 1/100 seconds678 * REG: 50mS/bit 4-bits right justified679 */680static u8 LM93_RAMP_TO_REG(int ramp)681{682 ramp = clamp_val(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);683 return (u8)((ramp + 2) / 5);684}685 686/*687 * PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%688 * REG: (same)689 */690static u8 LM93_PROCHOT_TO_REG(long prochot)691{692 prochot = clamp_val(prochot, 0, 255);693 return (u8)prochot;694}695 696/*697 * PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)698 * REG: 0-9 as mapped below699 */700static int lm93_interval_map[10] = {701 73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,702};703 704static int LM93_INTERVAL_FROM_REG(u8 reg)705{706 return lm93_interval_map[reg & 0x0f];707}708 709/* round up to nearest match */710static u8 LM93_INTERVAL_TO_REG(long interval)711{712 int i;713 for (i = 0; i < 9; i++)714 if (interval <= lm93_interval_map[i])715 break;716 717 /* can fall through with i==9 */718 return (u8)i;719}720 721/*722 * GPIO: 0-255, GPIO0 is LSB723 * REG: inverted724 */725static unsigned LM93_GPI_FROM_REG(u8 reg)726{727 return ~reg & 0xff;728}729 730/*731 * alarm bitmask definitions732 * The LM93 has nearly 64 bits of error status... I've pared that down to733 * what I think is a useful subset in order to fit it into 32 bits.734 *735 * Especially note that the #VRD_HOT alarms are missing because we provide736 * that information as values in another sysfs file.737 *738 * If libsensors is extended to support 64 bit values, this could be revisited.739 */740#define LM93_ALARM_IN1 0x00000001741#define LM93_ALARM_IN2 0x00000002742#define LM93_ALARM_IN3 0x00000004743#define LM93_ALARM_IN4 0x00000008744#define LM93_ALARM_IN5 0x00000010745#define LM93_ALARM_IN6 0x00000020746#define LM93_ALARM_IN7 0x00000040747#define LM93_ALARM_IN8 0x00000080748#define LM93_ALARM_IN9 0x00000100749#define LM93_ALARM_IN10 0x00000200750#define LM93_ALARM_IN11 0x00000400751#define LM93_ALARM_IN12 0x00000800752#define LM93_ALARM_IN13 0x00001000753#define LM93_ALARM_IN14 0x00002000754#define LM93_ALARM_IN15 0x00004000755#define LM93_ALARM_IN16 0x00008000756#define LM93_ALARM_FAN1 0x00010000757#define LM93_ALARM_FAN2 0x00020000758#define LM93_ALARM_FAN3 0x00040000759#define LM93_ALARM_FAN4 0x00080000760#define LM93_ALARM_PH1_ERR 0x00100000761#define LM93_ALARM_PH2_ERR 0x00200000762#define LM93_ALARM_SCSI1_ERR 0x00400000763#define LM93_ALARM_SCSI2_ERR 0x00800000764#define LM93_ALARM_DVDDP1_ERR 0x01000000765#define LM93_ALARM_DVDDP2_ERR 0x02000000766#define LM93_ALARM_D1_ERR 0x04000000767#define LM93_ALARM_D2_ERR 0x08000000768#define LM93_ALARM_TEMP1 0x10000000769#define LM93_ALARM_TEMP2 0x20000000770#define LM93_ALARM_TEMP3 0x40000000771 772static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)773{774 unsigned result;775 result = b1.host_status_2 & 0x3f;776 777 if (vccp_limit_type[0])778 result |= (b1.host_status_4 & 0x10) << 2;779 else780 result |= b1.host_status_2 & 0x40;781 782 if (vccp_limit_type[1])783 result |= (b1.host_status_4 & 0x20) << 2;784 else785 result |= b1.host_status_2 & 0x80;786 787 result |= b1.host_status_3 << 8;788 result |= (b1.fan_status & 0x0f) << 16;789 result |= (b1.p1_prochot_status & 0x80) << 13;790 result |= (b1.p2_prochot_status & 0x80) << 14;791 result |= (b1.host_status_4 & 0xfc) << 20;792 result |= (b1.host_status_1 & 0x07) << 28;793 return result;794}795 796#define MAX_RETRIES 5797 798static u8 lm93_read_byte(struct i2c_client *client, u8 reg)799{800 int value, i;801 802 /* retry in case of read errors */803 for (i = 1; i <= MAX_RETRIES; i++) {804 value = i2c_smbus_read_byte_data(client, reg);805 if (value >= 0) {806 return value;807 } else {808 dev_warn(&client->dev,809 "lm93: read byte data failed, address 0x%02x.\n",810 reg);811 mdelay(i + 3);812 }813 814 }815 816 /* <TODO> what to return in case of error? */817 dev_err(&client->dev, "lm93: All read byte retries failed!!\n");818 return 0;819}820 821static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)822{823 int result;824 825 /* <TODO> how to handle write errors? */826 result = i2c_smbus_write_byte_data(client, reg, value);827 828 if (result < 0)829 dev_warn(&client->dev,830 "lm93: write byte data failed, 0x%02x at address 0x%02x.\n",831 value, reg);832 833 return result;834}835 836static u16 lm93_read_word(struct i2c_client *client, u8 reg)837{838 int value, i;839 840 /* retry in case of read errors */841 for (i = 1; i <= MAX_RETRIES; i++) {842 value = i2c_smbus_read_word_data(client, reg);843 if (value >= 0) {844 return value;845 } else {846 dev_warn(&client->dev,847 "lm93: read word data failed, address 0x%02x.\n",848 reg);849 mdelay(i + 3);850 }851 852 }853 854 /* <TODO> what to return in case of error? */855 dev_err(&client->dev, "lm93: All read word retries failed!!\n");856 return 0;857}858 859static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)860{861 int result;862 863 /* <TODO> how to handle write errors? */864 result = i2c_smbus_write_word_data(client, reg, value);865 866 if (result < 0)867 dev_warn(&client->dev,868 "lm93: write word data failed, 0x%04x at address 0x%02x.\n",869 value, reg);870 871 return result;872}873 874static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];875 876/*877 * read block data into values, retry if not expected length878 * fbn => index to lm93_block_read_cmds table879 * (Fixed Block Number - section 14.5.2 of LM93 datasheet)880 */881static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)882{883 int i, result = 0;884 885 for (i = 1; i <= MAX_RETRIES; i++) {886 result = i2c_smbus_read_block_data(client,887 lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);888 889 if (result == lm93_block_read_cmds[fbn].len) {890 break;891 } else {892 dev_warn(&client->dev,893 "lm93: block read data failed, command 0x%02x.\n",894 lm93_block_read_cmds[fbn].cmd);895 mdelay(i + 3);896 }897 }898 899 if (result == lm93_block_read_cmds[fbn].len) {900 memcpy(values, lm93_block_buffer,901 lm93_block_read_cmds[fbn].len);902 } else {903 /* <TODO> what to do in case of error? */904 }905}906 907static struct lm93_data *lm93_update_device(struct device *dev)908{909 struct lm93_data *data = dev_get_drvdata(dev);910 struct i2c_client *client = data->client;911 const unsigned long interval = HZ + (HZ / 2);912 913 mutex_lock(&data->update_lock);914 915 if (time_after(jiffies, data->last_updated + interval) ||916 !data->valid) {917 918 data->update(data, client);919 data->last_updated = jiffies;920 data->valid = true;921 }922 923 mutex_unlock(&data->update_lock);924 return data;925}926 927/* update routine for data that has no corresponding SMBus block command */928static void lm93_update_client_common(struct lm93_data *data,929 struct i2c_client *client)930{931 int i;932 u8 *ptr;933 934 /* temp1 - temp4: limits */935 for (i = 0; i < 4; i++) {936 data->temp_lim[i].min =937 lm93_read_byte(client, LM93_REG_TEMP_MIN(i));938 data->temp_lim[i].max =939 lm93_read_byte(client, LM93_REG_TEMP_MAX(i));940 }941 942 /* config register */943 data->config = lm93_read_byte(client, LM93_REG_CONFIG);944 945 /* vid1 - vid2: values */946 for (i = 0; i < 2; i++)947 data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));948 949 /* prochot1 - prochot2: limits */950 for (i = 0; i < 2; i++)951 data->prochot_max[i] = lm93_read_byte(client,952 LM93_REG_PROCHOT_MAX(i));953 954 /* vccp1 - vccp2: VID relative limits */955 for (i = 0; i < 2; i++)956 data->vccp_limits[i] = lm93_read_byte(client,957 LM93_REG_VCCP_LIMIT_OFF(i));958 959 /* GPIO input state */960 data->gpi = lm93_read_byte(client, LM93_REG_GPI);961 962 /* #PROCHOT override state */963 data->prochot_override = lm93_read_byte(client,964 LM93_REG_PROCHOT_OVERRIDE);965 966 /* #PROCHOT intervals */967 data->prochot_interval = lm93_read_byte(client,968 LM93_REG_PROCHOT_INTERVAL);969 970 /* Fan Boost Temperature registers */971 for (i = 0; i < 4; i++)972 data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));973 974 /* Fan Boost Temperature Hyst. registers */975 data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);976 data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);977 978 /* Temperature Zone Min. PWM & Hysteresis registers */979 data->auto_pwm_min_hyst[0] =980 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);981 data->auto_pwm_min_hyst[1] =982 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);983 984 /* #PROCHOT & #VRDHOT PWM Ramp Control register */985 data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);986 987 /* misc setup registers */988 data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);989 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);990 data->sf_tach_to_pwm = lm93_read_byte(client,991 LM93_REG_SF_TACH_TO_PWM);992 993 /* write back alarm values to clear */994 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)995 lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));996}997 998/* update routine which uses SMBus block data commands */999static void lm93_update_client_full(struct lm93_data *data,1000 struct i2c_client *client)1001{1002 dev_dbg(&client->dev, "starting device update (block data enabled)\n");1003 1004 /* in1 - in16: values & limits */1005 lm93_read_block(client, 3, (u8 *)(data->block3));1006 lm93_read_block(client, 7, (u8 *)(data->block7));1007 1008 /* temp1 - temp4: values */1009 lm93_read_block(client, 2, (u8 *)(data->block2));1010 1011 /* prochot1 - prochot2: values */1012 lm93_read_block(client, 4, (u8 *)(data->block4));1013 1014 /* fan1 - fan4: values & limits */1015 lm93_read_block(client, 5, (u8 *)(data->block5));1016 lm93_read_block(client, 8, (u8 *)(data->block8));1017 1018 /* pmw control registers */1019 lm93_read_block(client, 9, (u8 *)(data->block9));1020 1021 /* alarm values */1022 lm93_read_block(client, 1, (u8 *)(&data->block1));1023 1024 /* auto/pwm registers */1025 lm93_read_block(client, 10, (u8 *)(&data->block10));1026 1027 lm93_update_client_common(data, client);1028}1029 1030/* update routine which uses SMBus byte/word data commands only */1031static void lm93_update_client_min(struct lm93_data *data,1032 struct i2c_client *client)1033{1034 int i, j;1035 u8 *ptr;1036 1037 dev_dbg(&client->dev, "starting device update (block data disabled)\n");1038 1039 /* in1 - in16: values & limits */1040 for (i = 0; i < 16; i++) {1041 data->block3[i] =1042 lm93_read_byte(client, LM93_REG_IN(i));1043 data->block7[i].min =1044 lm93_read_byte(client, LM93_REG_IN_MIN(i));1045 data->block7[i].max =1046 lm93_read_byte(client, LM93_REG_IN_MAX(i));1047 }1048 1049 /* temp1 - temp4: values */1050 for (i = 0; i < 4; i++) {1051 data->block2[i] =1052 lm93_read_byte(client, LM93_REG_TEMP(i));1053 }1054 1055 /* prochot1 - prochot2: values */1056 for (i = 0; i < 2; i++) {1057 data->block4[i].cur =1058 lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));1059 data->block4[i].avg =1060 lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));1061 }1062 1063 /* fan1 - fan4: values & limits */1064 for (i = 0; i < 4; i++) {1065 data->block5[i] =1066 lm93_read_word(client, LM93_REG_FAN(i));1067 data->block8[i] =1068 lm93_read_word(client, LM93_REG_FAN_MIN(i));1069 }1070 1071 /* pwm control registers */1072 for (i = 0; i < 2; i++) {1073 for (j = 0; j < 4; j++) {1074 data->block9[i][j] =1075 lm93_read_byte(client, LM93_REG_PWM_CTL(i, j));1076 }1077 }1078 1079 /* alarm values */1080 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {1081 *(ptr + i) =1082 lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);1083 }1084 1085 /* auto/pwm (base temp) registers */1086 for (i = 0; i < 4; i++) {1087 data->block10.base[i] =1088 lm93_read_byte(client, LM93_REG_TEMP_BASE(i));1089 }1090 1091 /* auto/pwm (offset temp) registers */1092 for (i = 0; i < 12; i++) {1093 data->block10.offset[i] =1094 lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));1095 }1096 1097 lm93_update_client_common(data, client);1098}1099 1100/* following are the sysfs callback functions */1101static ssize_t in_show(struct device *dev, struct device_attribute *attr,1102 char *buf)1103{1104 int nr = (to_sensor_dev_attr(attr))->index;1105 1106 struct lm93_data *data = lm93_update_device(dev);1107 return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));1108}1109 1110static SENSOR_DEVICE_ATTR_RO(in1_input, in, 0);1111static SENSOR_DEVICE_ATTR_RO(in2_input, in, 1);1112static SENSOR_DEVICE_ATTR_RO(in3_input, in, 2);1113static SENSOR_DEVICE_ATTR_RO(in4_input, in, 3);1114static SENSOR_DEVICE_ATTR_RO(in5_input, in, 4);1115static SENSOR_DEVICE_ATTR_RO(in6_input, in, 5);1116static SENSOR_DEVICE_ATTR_RO(in7_input, in, 6);1117static SENSOR_DEVICE_ATTR_RO(in8_input, in, 7);1118static SENSOR_DEVICE_ATTR_RO(in9_input, in, 8);1119static SENSOR_DEVICE_ATTR_RO(in10_input, in, 9);1120static SENSOR_DEVICE_ATTR_RO(in11_input, in, 10);1121static SENSOR_DEVICE_ATTR_RO(in12_input, in, 11);1122static SENSOR_DEVICE_ATTR_RO(in13_input, in, 12);1123static SENSOR_DEVICE_ATTR_RO(in14_input, in, 13);1124static SENSOR_DEVICE_ATTR_RO(in15_input, in, 14);1125static SENSOR_DEVICE_ATTR_RO(in16_input, in, 15);1126 1127static ssize_t in_min_show(struct device *dev, struct device_attribute *attr,1128 char *buf)1129{1130 int nr = (to_sensor_dev_attr(attr))->index;1131 struct lm93_data *data = lm93_update_device(dev);1132 int vccp = nr - 6;1133 long rc, vid;1134 1135 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {1136 vid = LM93_VID_FROM_REG(data->vid[vccp]);1137 rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);1138 } else {1139 rc = LM93_IN_FROM_REG(nr, data->block7[nr].min);1140 }1141 return sprintf(buf, "%ld\n", rc);1142}1143 1144static ssize_t in_min_store(struct device *dev, struct device_attribute *attr,1145 const char *buf, size_t count)1146{1147 int nr = (to_sensor_dev_attr(attr))->index;1148 struct lm93_data *data = dev_get_drvdata(dev);1149 struct i2c_client *client = data->client;1150 int vccp = nr - 6;1151 long vid;1152 unsigned long val;1153 int err;1154 1155 err = kstrtoul(buf, 10, &val);1156 if (err)1157 return err;1158 1159 mutex_lock(&data->update_lock);1160 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {1161 vid = LM93_VID_FROM_REG(data->vid[vccp]);1162 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |1163 LM93_IN_REL_TO_REG(val, 0, vid);1164 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),1165 data->vccp_limits[vccp]);1166 } else {1167 data->block7[nr].min = LM93_IN_TO_REG(nr, val);1168 lm93_write_byte(client, LM93_REG_IN_MIN(nr),1169 data->block7[nr].min);1170 }1171 mutex_unlock(&data->update_lock);1172 return count;1173}1174 1175static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 0);1176static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 1);1177static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 2);1178static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 3);1179static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 4);1180static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 5);1181static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 6);1182static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 7);1183static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 8);1184static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 9);1185static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 10);1186static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 11);1187static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 12);1188static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 13);1189static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 14);1190static SENSOR_DEVICE_ATTR_RW(in16_min, in_min, 15);1191 1192static ssize_t in_max_show(struct device *dev, struct device_attribute *attr,1193 char *buf)1194{1195 int nr = (to_sensor_dev_attr(attr))->index;1196 struct lm93_data *data = lm93_update_device(dev);1197 int vccp = nr - 6;1198 long rc, vid;1199 1200 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {1201 vid = LM93_VID_FROM_REG(data->vid[vccp]);1202 rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid);1203 } else {1204 rc = LM93_IN_FROM_REG(nr, data->block7[nr].max);1205 }1206 return sprintf(buf, "%ld\n", rc);1207}1208 1209static ssize_t in_max_store(struct device *dev, struct device_attribute *attr,1210 const char *buf, size_t count)1211{1212 int nr = (to_sensor_dev_attr(attr))->index;1213 struct lm93_data *data = dev_get_drvdata(dev);1214 struct i2c_client *client = data->client;1215 int vccp = nr - 6;1216 long vid;1217 unsigned long val;1218 int err;1219 1220 err = kstrtoul(buf, 10, &val);1221 if (err)1222 return err;1223 1224 mutex_lock(&data->update_lock);1225 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {1226 vid = LM93_VID_FROM_REG(data->vid[vccp]);1227 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |1228 LM93_IN_REL_TO_REG(val, 1, vid);1229 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),1230 data->vccp_limits[vccp]);1231 } else {1232 data->block7[nr].max = LM93_IN_TO_REG(nr, val);1233 lm93_write_byte(client, LM93_REG_IN_MAX(nr),1234 data->block7[nr].max);1235 }1236 mutex_unlock(&data->update_lock);1237 return count;1238}1239 1240static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 0);1241static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 1);1242static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 2);1243static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 3);1244static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 4);1245static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 5);1246static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 6);1247static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 7);1248static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 8);1249static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 9);1250static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 10);1251static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 11);1252static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 12);1253static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 13);1254static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 14);1255static SENSOR_DEVICE_ATTR_RW(in16_max, in_max, 15);1256 1257static ssize_t temp_show(struct device *dev, struct device_attribute *attr,1258 char *buf)1259{1260 int nr = (to_sensor_dev_attr(attr))->index;1261 struct lm93_data *data = lm93_update_device(dev);1262 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block2[nr]));1263}1264 1265static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);1266static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);1267static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);1268 1269static ssize_t temp_min_show(struct device *dev,1270 struct device_attribute *attr, char *buf)1271{1272 int nr = (to_sensor_dev_attr(attr))->index;1273 struct lm93_data *data = lm93_update_device(dev);1274 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min));1275}1276 1277static ssize_t temp_min_store(struct device *dev,1278 struct device_attribute *attr, const char *buf,1279 size_t count)1280{1281 int nr = (to_sensor_dev_attr(attr))->index;1282 struct lm93_data *data = dev_get_drvdata(dev);1283 struct i2c_client *client = data->client;1284 long val;1285 int err;1286 1287 err = kstrtol(buf, 10, &val);1288 if (err)1289 return err;1290 1291 mutex_lock(&data->update_lock);1292 data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);1293 lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);1294 mutex_unlock(&data->update_lock);1295 return count;1296}1297 1298static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0);1299static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1);1300static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2);1301 1302static ssize_t temp_max_show(struct device *dev,1303 struct device_attribute *attr, char *buf)1304{1305 int nr = (to_sensor_dev_attr(attr))->index;1306 struct lm93_data *data = lm93_update_device(dev);1307 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max));1308}1309 1310static ssize_t temp_max_store(struct device *dev,1311 struct device_attribute *attr, const char *buf,1312 size_t count)1313{1314 int nr = (to_sensor_dev_attr(attr))->index;1315 struct lm93_data *data = dev_get_drvdata(dev);1316 struct i2c_client *client = data->client;1317 long val;1318 int err;1319 1320 err = kstrtol(buf, 10, &val);1321 if (err)1322 return err;1323 1324 mutex_lock(&data->update_lock);1325 data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);1326 lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);1327 mutex_unlock(&data->update_lock);1328 return count;1329}1330 1331static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);1332static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);1333static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);1334 1335static ssize_t temp_auto_base_show(struct device *dev,1336 struct device_attribute *attr, char *buf)1337{1338 int nr = (to_sensor_dev_attr(attr))->index;1339 struct lm93_data *data = lm93_update_device(dev);1340 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr]));1341}1342 1343static ssize_t temp_auto_base_store(struct device *dev,1344 struct device_attribute *attr,1345 const char *buf, size_t count)1346{1347 int nr = (to_sensor_dev_attr(attr))->index;1348 struct lm93_data *data = dev_get_drvdata(dev);1349 struct i2c_client *client = data->client;1350 long val;1351 int err;1352 1353 err = kstrtol(buf, 10, &val);1354 if (err)1355 return err;1356 1357 mutex_lock(&data->update_lock);1358 data->block10.base[nr] = LM93_TEMP_TO_REG(val);1359 lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);1360 mutex_unlock(&data->update_lock);1361 return count;1362}1363 1364static SENSOR_DEVICE_ATTR_RW(temp1_auto_base, temp_auto_base, 0);1365static SENSOR_DEVICE_ATTR_RW(temp2_auto_base, temp_auto_base, 1);1366static SENSOR_DEVICE_ATTR_RW(temp3_auto_base, temp_auto_base, 2);1367 1368static ssize_t temp_auto_boost_show(struct device *dev,1369 struct device_attribute *attr, char *buf)1370{1371 int nr = (to_sensor_dev_attr(attr))->index;1372 struct lm93_data *data = lm93_update_device(dev);1373 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr]));1374}1375 1376static ssize_t temp_auto_boost_store(struct device *dev,1377 struct device_attribute *attr,1378 const char *buf, size_t count)1379{1380 int nr = (to_sensor_dev_attr(attr))->index;1381 struct lm93_data *data = dev_get_drvdata(dev);1382 struct i2c_client *client = data->client;1383 long val;1384 int err;1385 1386 err = kstrtol(buf, 10, &val);1387 if (err)1388 return err;1389 1390 mutex_lock(&data->update_lock);1391 data->boost[nr] = LM93_TEMP_TO_REG(val);1392 lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);1393 mutex_unlock(&data->update_lock);1394 return count;1395}1396 1397static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost, temp_auto_boost, 0);1398static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost, temp_auto_boost, 1);1399static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost, temp_auto_boost, 2);1400 1401static ssize_t temp_auto_boost_hyst_show(struct device *dev,1402 struct device_attribute *attr,1403 char *buf)1404{1405 int nr = (to_sensor_dev_attr(attr))->index;1406 struct lm93_data *data = lm93_update_device(dev);1407 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);1408 return sprintf(buf, "%d\n",1409 LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));1410}1411 1412static ssize_t temp_auto_boost_hyst_store(struct device *dev,1413 struct device_attribute *attr,1414 const char *buf, size_t count)1415{1416 int nr = (to_sensor_dev_attr(attr))->index;1417 struct lm93_data *data = dev_get_drvdata(dev);1418 struct i2c_client *client = data->client;1419 unsigned long val;1420 int err;1421 1422 err = kstrtoul(buf, 10, &val);1423 if (err)1424 return err;1425 1426 mutex_lock(&data->update_lock);1427 /* force 0.5C/bit mode */1428 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);1429 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);1430 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);1431 data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);1432 lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),1433 data->boost_hyst[nr/2]);1434 mutex_unlock(&data->update_lock);1435 return count;1436}1437 1438static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost_hyst, temp_auto_boost_hyst, 0);1439static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost_hyst, temp_auto_boost_hyst, 1);1440static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost_hyst, temp_auto_boost_hyst, 2);1441 1442static ssize_t temp_auto_offset_show(struct device *dev,1443 struct device_attribute *attr, char *buf)1444{1445 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);1446 int nr = s_attr->index;1447 int ofs = s_attr->nr;1448 struct lm93_data *data = lm93_update_device(dev);1449 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);1450 return sprintf(buf, "%d\n",1451 LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],1452 nr, mode));1453}1454 1455static ssize_t temp_auto_offset_store(struct device *dev,1456 struct device_attribute *attr,1457 const char *buf, size_t count)1458{1459 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);1460 int nr = s_attr->index;1461 int ofs = s_attr->nr;1462 struct lm93_data *data = dev_get_drvdata(dev);1463 struct i2c_client *client = data->client;1464 unsigned long val;1465 int err;1466 1467 err = kstrtoul(buf, 10, &val);1468 if (err)1469 return err;1470 1471 mutex_lock(&data->update_lock);1472 /* force 0.5C/bit mode */1473 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);1474 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);1475 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);1476 data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(1477 data->block10.offset[ofs], val, nr, 1);1478 lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),1479 data->block10.offset[ofs]);1480 mutex_unlock(&data->update_lock);1481 return count;1482}1483 1484static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset1, temp_auto_offset, 0, 0);1485static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset2, temp_auto_offset, 1, 0);1486static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset3, temp_auto_offset, 2, 0);1487static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset4, temp_auto_offset, 3, 0);1488static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset5, temp_auto_offset, 4, 0);1489static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset6, temp_auto_offset, 5, 0);1490static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset7, temp_auto_offset, 6, 0);1491static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset8, temp_auto_offset, 7, 0);1492static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset9, temp_auto_offset, 8, 0);1493static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset10, temp_auto_offset, 9, 0);1494static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset11, temp_auto_offset, 10, 0);1495static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset12, temp_auto_offset, 11, 0);1496static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset1, temp_auto_offset, 0, 1);1497static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset2, temp_auto_offset, 1, 1);1498static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset3, temp_auto_offset, 2, 1);1499static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset4, temp_auto_offset, 3, 1);1500static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset5, temp_auto_offset, 4, 1);1501static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset6, temp_auto_offset, 5, 1);1502static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset7, temp_auto_offset, 6, 1);1503static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset8, temp_auto_offset, 7, 1);1504static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset9, temp_auto_offset, 8, 1);1505static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset10, temp_auto_offset, 9, 1);1506static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset11, temp_auto_offset, 10, 1);1507static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset12, temp_auto_offset, 11, 1);1508static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset1, temp_auto_offset, 0, 2);1509static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset2, temp_auto_offset, 1, 2);1510static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset3, temp_auto_offset, 2, 2);1511static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset4, temp_auto_offset, 3, 2);1512static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset5, temp_auto_offset, 4, 2);1513static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset6, temp_auto_offset, 5, 2);1514static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset7, temp_auto_offset, 6, 2);1515static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset8, temp_auto_offset, 7, 2);1516static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset9, temp_auto_offset, 8, 2);1517static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset10, temp_auto_offset, 9, 2);1518static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset11, temp_auto_offset, 10, 2);1519static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset12, temp_auto_offset, 11, 2);1520 1521static ssize_t temp_auto_pwm_min_show(struct device *dev,1522 struct device_attribute *attr,1523 char *buf)1524{1525 int nr = (to_sensor_dev_attr(attr))->index;1526 u8 reg, ctl4;1527 struct lm93_data *data = lm93_update_device(dev);1528 reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;1529 ctl4 = data->block9[nr][LM93_PWM_CTL4];1530 return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?1531 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));1532}1533 1534static ssize_t temp_auto_pwm_min_store(struct device *dev,1535 struct device_attribute *attr,1536 const char *buf, size_t count)1537{1538 int nr = (to_sensor_dev_attr(attr))->index;1539 struct lm93_data *data = dev_get_drvdata(dev);1540 struct i2c_client *client = data->client;1541 u8 reg, ctl4;1542 unsigned long val;1543 int err;1544 1545 err = kstrtoul(buf, 10, &val);1546 if (err)1547 return err;1548 1549 mutex_lock(&data->update_lock);1550 reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));1551 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));1552 reg = (reg & 0x0f) |1553 LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?1554 LM93_PWM_MAP_LO_FREQ :1555 LM93_PWM_MAP_HI_FREQ) << 4;1556 data->auto_pwm_min_hyst[nr/2] = reg;1557 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);1558 mutex_unlock(&data->update_lock);1559 return count;1560}1561 1562static SENSOR_DEVICE_ATTR_RW(temp1_auto_pwm_min, temp_auto_pwm_min, 0);1563static SENSOR_DEVICE_ATTR_RW(temp2_auto_pwm_min, temp_auto_pwm_min, 1);1564static SENSOR_DEVICE_ATTR_RW(temp3_auto_pwm_min, temp_auto_pwm_min, 2);1565 1566static ssize_t temp_auto_offset_hyst_show(struct device *dev,1567 struct device_attribute *attr,1568 char *buf)1569{1570 int nr = (to_sensor_dev_attr(attr))->index;1571 struct lm93_data *data = lm93_update_device(dev);1572 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);1573 return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG(1574 data->auto_pwm_min_hyst[nr / 2], mode));1575}1576 1577static ssize_t temp_auto_offset_hyst_store(struct device *dev,1578 struct device_attribute *attr,1579 const char *buf, size_t count)1580{1581 int nr = (to_sensor_dev_attr(attr))->index;1582 struct lm93_data *data = dev_get_drvdata(dev);1583 struct i2c_client *client = data->client;1584 u8 reg;1585 unsigned long val;1586 int err;1587 1588 err = kstrtoul(buf, 10, &val);1589 if (err)1590 return err;1591 1592 mutex_lock(&data->update_lock);1593 /* force 0.5C/bit mode */1594 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);1595 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);1596 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);1597 reg = data->auto_pwm_min_hyst[nr/2];1598 reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);1599 data->auto_pwm_min_hyst[nr/2] = reg;1600 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);1601 mutex_unlock(&data->update_lock);1602 return count;1603}1604 1605static SENSOR_DEVICE_ATTR_RW(temp1_auto_offset_hyst, temp_auto_offset_hyst, 0);1606static SENSOR_DEVICE_ATTR_RW(temp2_auto_offset_hyst, temp_auto_offset_hyst, 1);1607static SENSOR_DEVICE_ATTR_RW(temp3_auto_offset_hyst, temp_auto_offset_hyst, 2);1608 1609static ssize_t fan_input_show(struct device *dev,1610 struct device_attribute *attr, char *buf)1611{1612 struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);1613 int nr = s_attr->index;1614 struct lm93_data *data = lm93_update_device(dev);1615 1616 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr]));1617}1618 1619static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0);1620static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1);1621static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2);1622static SENSOR_DEVICE_ATTR_RO(fan4_input, fan_input, 3);1623 1624static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr,1625 char *buf)1626{1627 int nr = (to_sensor_dev_attr(attr))->index;1628 struct lm93_data *data = lm93_update_device(dev);1629 1630 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr]));1631}1632 1633static ssize_t fan_min_store(struct device *dev,1634 struct device_attribute *attr, const char *buf,1635 size_t count)1636{1637 int nr = (to_sensor_dev_attr(attr))->index;1638 struct lm93_data *data = dev_get_drvdata(dev);1639 struct i2c_client *client = data->client;1640 unsigned long val;1641 int err;1642 1643 err = kstrtoul(buf, 10, &val);1644 if (err)1645 return err;1646 1647 mutex_lock(&data->update_lock);1648 data->block8[nr] = LM93_FAN_TO_REG(val);1649 lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]);1650 mutex_unlock(&data->update_lock);1651 return count;1652}1653 1654static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);1655static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);1656static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);1657static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3);1658 1659/*1660 * some tedious bit-twiddling here to deal with the register format:1661 *1662 * data->sf_tach_to_pwm: (tach to pwm mapping bits)1663 *1664 * bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 01665 * T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P11666 *1667 * data->sfc2: (enable bits)1668 *1669 * bit | 3 | 2 | 1 | 01670 * T4 T3 T2 T11671 */1672 1673static ssize_t fan_smart_tach_show(struct device *dev,1674 struct device_attribute *attr, char *buf)1675{1676 int nr = (to_sensor_dev_attr(attr))->index;1677 struct lm93_data *data = lm93_update_device(dev);1678 long rc = 0;1679 int mapping;1680 1681 /* extract the relevant mapping */1682 mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;1683 1684 /* if there's a mapping and it's enabled */1685 if (mapping && ((data->sfc2 >> nr) & 0x01))1686 rc = mapping;1687 return sprintf(buf, "%ld\n", rc);1688}1689 1690/*1691 * helper function - must grab data->update_lock before calling1692 * fan is 0-3, indicating fan1-fan41693 */1694static void lm93_write_fan_smart_tach(struct i2c_client *client,1695 struct lm93_data *data, int fan, long value)1696{1697 /* insert the new mapping and write it out */1698 data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);1699 data->sf_tach_to_pwm &= ~(0x3 << fan * 2);1700 data->sf_tach_to_pwm |= value << fan * 2;1701 lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);1702 1703 /* insert the enable bit and write it out */1704 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);1705 if (value)1706 data->sfc2 |= 1 << fan;1707 else1708 data->sfc2 &= ~(1 << fan);1709 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);1710}1711 1712static ssize_t fan_smart_tach_store(struct device *dev,1713 struct device_attribute *attr,1714 const char *buf, size_t count)1715{1716 int nr = (to_sensor_dev_attr(attr))->index;1717 struct lm93_data *data = dev_get_drvdata(dev);1718 struct i2c_client *client = data->client;1719 unsigned long val;1720 int err;1721 1722 err = kstrtoul(buf, 10, &val);1723 if (err)1724 return err;1725 1726 mutex_lock(&data->update_lock);1727 /* sanity test, ignore the write otherwise */1728 if (val <= 2) {1729 /* can't enable if pwm freq is 22.5KHz */1730 if (val) {1731 u8 ctl4 = lm93_read_byte(client,1732 LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4));1733 if ((ctl4 & 0x07) == 0)1734 val = 0;1735 }1736 lm93_write_fan_smart_tach(client, data, nr, val);1737 }1738 mutex_unlock(&data->update_lock);1739 return count;1740}1741 1742static SENSOR_DEVICE_ATTR_RW(fan1_smart_tach, fan_smart_tach, 0);1743static SENSOR_DEVICE_ATTR_RW(fan2_smart_tach, fan_smart_tach, 1);1744static SENSOR_DEVICE_ATTR_RW(fan3_smart_tach, fan_smart_tach, 2);1745static SENSOR_DEVICE_ATTR_RW(fan4_smart_tach, fan_smart_tach, 3);1746 1747static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,1748 char *buf)1749{1750 int nr = (to_sensor_dev_attr(attr))->index;1751 struct lm93_data *data = lm93_update_device(dev);1752 u8 ctl2, ctl4;1753 long rc;1754 1755 ctl2 = data->block9[nr][LM93_PWM_CTL2];1756 ctl4 = data->block9[nr][LM93_PWM_CTL4];1757 if (ctl2 & 0x01) /* show user commanded value if enabled */1758 rc = data->pwm_override[nr];1759 else /* show present h/w value if manual pwm disabled */1760 rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?1761 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);1762 return sprintf(buf, "%ld\n", rc);1763}1764 1765static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,1766 const char *buf, size_t count)1767{1768 int nr = (to_sensor_dev_attr(attr))->index;1769 struct lm93_data *data = dev_get_drvdata(dev);1770 struct i2c_client *client = data->client;1771 u8 ctl2, ctl4;1772 unsigned long val;1773 int err;1774 1775 err = kstrtoul(buf, 10, &val);1776 if (err)1777 return err;1778 1779 mutex_lock(&data->update_lock);1780 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));1781 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));1782 ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?1783 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;1784 /* save user commanded value */1785 data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,1786 (ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ :1787 LM93_PWM_MAP_HI_FREQ);1788 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);1789 mutex_unlock(&data->update_lock);1790 return count;1791}1792 1793static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);1794static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1);1795 1796static ssize_t pwm_enable_show(struct device *dev,1797 struct device_attribute *attr, char *buf)1798{1799 int nr = (to_sensor_dev_attr(attr))->index;1800 struct lm93_data *data = lm93_update_device(dev);1801 u8 ctl2;1802 long rc;1803 1804 ctl2 = data->block9[nr][LM93_PWM_CTL2];1805 if (ctl2 & 0x01) /* manual override enabled ? */1806 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;1807 else1808 rc = 2;1809 return sprintf(buf, "%ld\n", rc);1810}1811 1812static ssize_t pwm_enable_store(struct device *dev,1813 struct device_attribute *attr,1814 const char *buf, size_t count)1815{1816 int nr = (to_sensor_dev_attr(attr))->index;1817 struct lm93_data *data = dev_get_drvdata(dev);1818 struct i2c_client *client = data->client;1819 u8 ctl2;1820 unsigned long val;1821 int err;1822 1823 err = kstrtoul(buf, 10, &val);1824 if (err)1825 return err;1826 1827 mutex_lock(&data->update_lock);1828 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));1829 1830 switch (val) {1831 case 0:1832 ctl2 |= 0xF1; /* enable manual override, set PWM to max */1833 break;1834 case 1:1835 ctl2 |= 0x01; /* enable manual override */1836 break;1837 case 2:1838 ctl2 &= ~0x01; /* disable manual override */1839 break;1840 default:1841 mutex_unlock(&data->update_lock);1842 return -EINVAL;1843 }1844 1845 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);1846 mutex_unlock(&data->update_lock);1847 return count;1848}1849 1850static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0);1851static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1);1852 1853static ssize_t pwm_freq_show(struct device *dev,1854 struct device_attribute *attr, char *buf)1855{1856 int nr = (to_sensor_dev_attr(attr))->index;1857 struct lm93_data *data = lm93_update_device(dev);1858 u8 ctl4;1859 1860 ctl4 = data->block9[nr][LM93_PWM_CTL4];1861 return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4));1862}1863 1864/*1865 * helper function - must grab data->update_lock before calling1866 * pwm is 0-1, indicating pwm1-pwm21867 * this disables smart tach for all tach channels bound to the given pwm1868 */1869static void lm93_disable_fan_smart_tach(struct i2c_client *client,1870 struct lm93_data *data, int pwm)1871{1872 int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);1873 int mask;1874 1875 /* collapse the mapping into a mask of enable bits */1876 mapping = (mapping >> pwm) & 0x55;1877 mask = mapping & 0x01;1878 mask |= (mapping & 0x04) >> 1;1879 mask |= (mapping & 0x10) >> 2;1880 mask |= (mapping & 0x40) >> 3;1881 1882 /* disable smart tach according to the mask */1883 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);1884 data->sfc2 &= ~mask;1885 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);1886}1887 1888static ssize_t pwm_freq_store(struct device *dev,1889 struct device_attribute *attr, const char *buf,1890 size_t count)1891{1892 int nr = (to_sensor_dev_attr(attr))->index;1893 struct lm93_data *data = dev_get_drvdata(dev);1894 struct i2c_client *client = data->client;1895 u8 ctl4;1896 unsigned long val;1897 int err;1898 1899 err = kstrtoul(buf, 10, &val);1900 if (err)1901 return err;1902 1903 mutex_lock(&data->update_lock);1904 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));1905 ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);1906 data->block9[nr][LM93_PWM_CTL4] = ctl4;1907 /* ctl4 == 0 -> 22.5KHz -> disable smart tach */1908 if (!ctl4)1909 lm93_disable_fan_smart_tach(client, data, nr);1910 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4);1911 mutex_unlock(&data->update_lock);1912 return count;1913}1914 1915static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0);1916static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1);1917 1918static ssize_t pwm_auto_channels_show(struct device *dev,1919 struct device_attribute *attr,1920 char *buf)1921{1922 int nr = (to_sensor_dev_attr(attr))->index;1923 struct lm93_data *data = lm93_update_device(dev);1924 return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]);1925}1926 1927static ssize_t pwm_auto_channels_store(struct device *dev,1928 struct device_attribute *attr,1929 const char *buf, size_t count)1930{1931 int nr = (to_sensor_dev_attr(attr))->index;1932 struct lm93_data *data = dev_get_drvdata(dev);1933 struct i2c_client *client = data->client;1934 unsigned long val;1935 int err;1936 1937 err = kstrtoul(buf, 10, &val);1938 if (err)1939 return err;1940 1941 mutex_lock(&data->update_lock);1942 data->block9[nr][LM93_PWM_CTL1] = clamp_val(val, 0, 255);1943 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1),1944 data->block9[nr][LM93_PWM_CTL1]);1945 mutex_unlock(&data->update_lock);1946 return count;1947}1948 1949static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels, pwm_auto_channels, 0);1950static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels, pwm_auto_channels, 1);1951 1952static ssize_t pwm_auto_spinup_min_show(struct device *dev,1953 struct device_attribute *attr,1954 char *buf)1955{1956 int nr = (to_sensor_dev_attr(attr))->index;1957 struct lm93_data *data = lm93_update_device(dev);1958 u8 ctl3, ctl4;1959 1960 ctl3 = data->block9[nr][LM93_PWM_CTL3];1961 ctl4 = data->block9[nr][LM93_PWM_CTL4];1962 return sprintf(buf, "%d\n",1963 LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?1964 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));1965}1966 1967static ssize_t pwm_auto_spinup_min_store(struct device *dev,1968 struct device_attribute *attr,1969 const char *buf, size_t count)1970{1971 int nr = (to_sensor_dev_attr(attr))->index;1972 struct lm93_data *data = dev_get_drvdata(dev);1973 struct i2c_client *client = data->client;1974 u8 ctl3, ctl4;1975 unsigned long val;1976 int err;1977 1978 err = kstrtoul(buf, 10, &val);1979 if (err)1980 return err;1981 1982 mutex_lock(&data->update_lock);1983 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));1984 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));1985 ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?1986 LM93_PWM_MAP_LO_FREQ :1987 LM93_PWM_MAP_HI_FREQ);1988 data->block9[nr][LM93_PWM_CTL3] = ctl3;1989 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);1990 mutex_unlock(&data->update_lock);1991 return count;1992}1993 1994static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_min, pwm_auto_spinup_min, 0);1995static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_min, pwm_auto_spinup_min, 1);1996 1997static ssize_t pwm_auto_spinup_time_show(struct device *dev,1998 struct device_attribute *attr,1999 char *buf)2000{2001 int nr = (to_sensor_dev_attr(attr))->index;2002 struct lm93_data *data = lm93_update_device(dev);2003 return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG(2004 data->block9[nr][LM93_PWM_CTL3]));2005}2006 2007static ssize_t pwm_auto_spinup_time_store(struct device *dev,2008 struct device_attribute *attr,2009 const char *buf, size_t count)2010{2011 int nr = (to_sensor_dev_attr(attr))->index;2012 struct lm93_data *data = dev_get_drvdata(dev);2013 struct i2c_client *client = data->client;2014 u8 ctl3;2015 unsigned long val;2016 int err;2017 2018 err = kstrtoul(buf, 10, &val);2019 if (err)2020 return err;2021 2022 mutex_lock(&data->update_lock);2023 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));2024 ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);2025 data->block9[nr][LM93_PWM_CTL3] = ctl3;2026 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);2027 mutex_unlock(&data->update_lock);2028 return count;2029}2030 2031static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_time, pwm_auto_spinup_time, 0);2032static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_time, pwm_auto_spinup_time, 1);2033 2034static ssize_t pwm_auto_prochot_ramp_show(struct device *dev,2035 struct device_attribute *attr, char *buf)2036{2037 struct lm93_data *data = lm93_update_device(dev);2038 return sprintf(buf, "%d\n",2039 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));2040}2041 2042static ssize_t pwm_auto_prochot_ramp_store(struct device *dev,2043 struct device_attribute *attr,2044 const char *buf, size_t count)2045{2046 struct lm93_data *data = dev_get_drvdata(dev);2047 struct i2c_client *client = data->client;2048 u8 ramp;2049 unsigned long val;2050 int err;2051 2052 err = kstrtoul(buf, 10, &val);2053 if (err)2054 return err;2055 2056 mutex_lock(&data->update_lock);2057 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);2058 ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);2059 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);2060 mutex_unlock(&data->update_lock);2061 return count;2062}2063 2064static DEVICE_ATTR_RW(pwm_auto_prochot_ramp);2065 2066static ssize_t pwm_auto_vrdhot_ramp_show(struct device *dev,2067 struct device_attribute *attr, char *buf)2068{2069 struct lm93_data *data = lm93_update_device(dev);2070 return sprintf(buf, "%d\n",2071 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));2072}2073 2074static ssize_t pwm_auto_vrdhot_ramp_store(struct device *dev,2075 struct device_attribute *attr,2076 const char *buf, size_t count)2077{2078 struct lm93_data *data = dev_get_drvdata(dev);2079 struct i2c_client *client = data->client;2080 u8 ramp;2081 unsigned long val;2082 int err;2083 2084 err = kstrtoul(buf, 10, &val);2085 if (err)2086 return err;2087 2088 mutex_lock(&data->update_lock);2089 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);2090 ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);2091 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);2092 mutex_unlock(&data->update_lock);2093 return 0;2094}2095 2096static DEVICE_ATTR_RW(pwm_auto_vrdhot_ramp);2097 2098static ssize_t vid_show(struct device *dev, struct device_attribute *attr,2099 char *buf)2100{2101 int nr = (to_sensor_dev_attr(attr))->index;2102 struct lm93_data *data = lm93_update_device(dev);2103 return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr]));2104}2105 2106static SENSOR_DEVICE_ATTR_RO(cpu0_vid, vid, 0);2107static SENSOR_DEVICE_ATTR_RO(cpu1_vid, vid, 1);2108 2109static ssize_t prochot_show(struct device *dev, struct device_attribute *attr,2110 char *buf)2111{2112 int nr = (to_sensor_dev_attr(attr))->index;2113 struct lm93_data *data = lm93_update_device(dev);2114 return sprintf(buf, "%d\n", data->block4[nr].cur);2115}2116 2117static SENSOR_DEVICE_ATTR_RO(prochot1, prochot, 0);2118static SENSOR_DEVICE_ATTR_RO(prochot2, prochot, 1);2119 2120static ssize_t prochot_avg_show(struct device *dev,2121 struct device_attribute *attr, char *buf)2122{2123 int nr = (to_sensor_dev_attr(attr))->index;2124 struct lm93_data *data = lm93_update_device(dev);2125 return sprintf(buf, "%d\n", data->block4[nr].avg);2126}2127 2128static SENSOR_DEVICE_ATTR_RO(prochot1_avg, prochot_avg, 0);2129static SENSOR_DEVICE_ATTR_RO(prochot2_avg, prochot_avg, 1);2130 2131static ssize_t prochot_max_show(struct device *dev,2132 struct device_attribute *attr, char *buf)2133{2134 int nr = (to_sensor_dev_attr(attr))->index;2135 struct lm93_data *data = lm93_update_device(dev);2136 return sprintf(buf, "%d\n", data->prochot_max[nr]);2137}2138 2139static ssize_t prochot_max_store(struct device *dev,2140 struct device_attribute *attr,2141 const char *buf, size_t count)2142{2143 int nr = (to_sensor_dev_attr(attr))->index;2144 struct lm93_data *data = dev_get_drvdata(dev);2145 struct i2c_client *client = data->client;2146 unsigned long val;2147 int err;2148 2149 err = kstrtoul(buf, 10, &val);2150 if (err)2151 return err;2152 2153 mutex_lock(&data->update_lock);2154 data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);2155 lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),2156 data->prochot_max[nr]);2157 mutex_unlock(&data->update_lock);2158 return count;2159}2160 2161static SENSOR_DEVICE_ATTR_RW(prochot1_max, prochot_max, 0);2162static SENSOR_DEVICE_ATTR_RW(prochot2_max, prochot_max, 1);2163 2164static const u8 prochot_override_mask[] = { 0x80, 0x40 };2165 2166static ssize_t prochot_override_show(struct device *dev,2167 struct device_attribute *attr, char *buf)2168{2169 int nr = (to_sensor_dev_attr(attr))->index;2170 struct lm93_data *data = lm93_update_device(dev);2171 return sprintf(buf, "%d\n",2172 (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);2173}2174 2175static ssize_t prochot_override_store(struct device *dev,2176 struct device_attribute *attr,2177 const char *buf, size_t count)2178{2179 int nr = (to_sensor_dev_attr(attr))->index;2180 struct lm93_data *data = dev_get_drvdata(dev);2181 struct i2c_client *client = data->client;2182 unsigned long val;2183 int err;2184 2185 err = kstrtoul(buf, 10, &val);2186 if (err)2187 return err;2188 2189 mutex_lock(&data->update_lock);2190 if (val)2191 data->prochot_override |= prochot_override_mask[nr];2192 else2193 data->prochot_override &= (~prochot_override_mask[nr]);2194 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,2195 data->prochot_override);2196 mutex_unlock(&data->update_lock);2197 return count;2198}2199 2200static SENSOR_DEVICE_ATTR_RW(prochot1_override, prochot_override, 0);2201static SENSOR_DEVICE_ATTR_RW(prochot2_override, prochot_override, 1);2202 2203static ssize_t prochot_interval_show(struct device *dev,2204 struct device_attribute *attr, char *buf)2205{2206 int nr = (to_sensor_dev_attr(attr))->index;2207 struct lm93_data *data = lm93_update_device(dev);2208 u8 tmp;2209 if (nr == 1)2210 tmp = (data->prochot_interval & 0xf0) >> 4;2211 else2212 tmp = data->prochot_interval & 0x0f;2213 return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp));2214}2215 2216static ssize_t prochot_interval_store(struct device *dev,2217 struct device_attribute *attr,2218 const char *buf, size_t count)2219{2220 int nr = (to_sensor_dev_attr(attr))->index;2221 struct lm93_data *data = dev_get_drvdata(dev);2222 struct i2c_client *client = data->client;2223 u8 tmp;2224 unsigned long val;2225 int err;2226 2227 err = kstrtoul(buf, 10, &val);2228 if (err)2229 return err;2230 2231 mutex_lock(&data->update_lock);2232 tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);2233 if (nr == 1)2234 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);2235 else2236 tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);2237 data->prochot_interval = tmp;2238 lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);2239 mutex_unlock(&data->update_lock);2240 return count;2241}2242 2243static SENSOR_DEVICE_ATTR_RW(prochot1_interval, prochot_interval, 0);2244static SENSOR_DEVICE_ATTR_RW(prochot2_interval, prochot_interval, 1);2245 2246static ssize_t prochot_override_duty_cycle_show(struct device *dev,2247 struct device_attribute *attr,2248 char *buf)2249{2250 struct lm93_data *data = lm93_update_device(dev);2251 return sprintf(buf, "%d\n", data->prochot_override & 0x0f);2252}2253 2254static ssize_t prochot_override_duty_cycle_store(struct device *dev,2255 struct device_attribute *attr,2256 const char *buf, size_t count)2257{2258 struct lm93_data *data = dev_get_drvdata(dev);2259 struct i2c_client *client = data->client;2260 unsigned long val;2261 int err;2262 2263 err = kstrtoul(buf, 10, &val);2264 if (err)2265 return err;2266 2267 mutex_lock(&data->update_lock);2268 data->prochot_override = (data->prochot_override & 0xf0) |2269 clamp_val(val, 0, 15);2270 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,2271 data->prochot_override);2272 mutex_unlock(&data->update_lock);2273 return count;2274}2275 2276static DEVICE_ATTR_RW(prochot_override_duty_cycle);2277 2278static ssize_t prochot_short_show(struct device *dev,2279 struct device_attribute *attr, char *buf)2280{2281 struct lm93_data *data = lm93_update_device(dev);2282 return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);2283}2284 2285static ssize_t prochot_short_store(struct device *dev,2286 struct device_attribute *attr,2287 const char *buf, size_t count)2288{2289 struct lm93_data *data = dev_get_drvdata(dev);2290 struct i2c_client *client = data->client;2291 unsigned long val;2292 int err;2293 2294 err = kstrtoul(buf, 10, &val);2295 if (err)2296 return err;2297 2298 mutex_lock(&data->update_lock);2299 if (val)2300 data->config |= 0x10;2301 else2302 data->config &= ~0x10;2303 lm93_write_byte(client, LM93_REG_CONFIG, data->config);2304 mutex_unlock(&data->update_lock);2305 return count;2306}2307 2308static DEVICE_ATTR_RW(prochot_short);2309 2310static ssize_t vrdhot_show(struct device *dev, struct device_attribute *attr,2311 char *buf)2312{2313 int nr = (to_sensor_dev_attr(attr))->index;2314 struct lm93_data *data = lm93_update_device(dev);2315 return sprintf(buf, "%d\n",2316 data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0);2317}2318 2319static SENSOR_DEVICE_ATTR_RO(vrdhot1, vrdhot, 0);2320static SENSOR_DEVICE_ATTR_RO(vrdhot2, vrdhot, 1);2321 2322static ssize_t gpio_show(struct device *dev, struct device_attribute *attr,2323 char *buf)2324{2325 struct lm93_data *data = lm93_update_device(dev);2326 return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));2327}2328 2329static DEVICE_ATTR_RO(gpio);2330 2331static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,2332 char *buf)2333{2334 struct lm93_data *data = lm93_update_device(dev);2335 return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));2336}2337 2338static DEVICE_ATTR_RO(alarms);2339 2340static struct attribute *lm93_attrs[] = {2341 &sensor_dev_attr_in1_input.dev_attr.attr,2342 &sensor_dev_attr_in2_input.dev_attr.attr,2343 &sensor_dev_attr_in3_input.dev_attr.attr,2344 &sensor_dev_attr_in4_input.dev_attr.attr,2345 &sensor_dev_attr_in5_input.dev_attr.attr,2346 &sensor_dev_attr_in6_input.dev_attr.attr,2347 &sensor_dev_attr_in7_input.dev_attr.attr,2348 &sensor_dev_attr_in8_input.dev_attr.attr,2349 &sensor_dev_attr_in9_input.dev_attr.attr,2350 &sensor_dev_attr_in10_input.dev_attr.attr,2351 &sensor_dev_attr_in11_input.dev_attr.attr,2352 &sensor_dev_attr_in12_input.dev_attr.attr,2353 &sensor_dev_attr_in13_input.dev_attr.attr,2354 &sensor_dev_attr_in14_input.dev_attr.attr,2355 &sensor_dev_attr_in15_input.dev_attr.attr,2356 &sensor_dev_attr_in16_input.dev_attr.attr,2357 &sensor_dev_attr_in1_min.dev_attr.attr,2358 &sensor_dev_attr_in2_min.dev_attr.attr,2359 &sensor_dev_attr_in3_min.dev_attr.attr,2360 &sensor_dev_attr_in4_min.dev_attr.attr,2361 &sensor_dev_attr_in5_min.dev_attr.attr,2362 &sensor_dev_attr_in6_min.dev_attr.attr,2363 &sensor_dev_attr_in7_min.dev_attr.attr,2364 &sensor_dev_attr_in8_min.dev_attr.attr,2365 &sensor_dev_attr_in9_min.dev_attr.attr,2366 &sensor_dev_attr_in10_min.dev_attr.attr,2367 &sensor_dev_attr_in11_min.dev_attr.attr,2368 &sensor_dev_attr_in12_min.dev_attr.attr,2369 &sensor_dev_attr_in13_min.dev_attr.attr,2370 &sensor_dev_attr_in14_min.dev_attr.attr,2371 &sensor_dev_attr_in15_min.dev_attr.attr,2372 &sensor_dev_attr_in16_min.dev_attr.attr,2373 &sensor_dev_attr_in1_max.dev_attr.attr,2374 &sensor_dev_attr_in2_max.dev_attr.attr,2375 &sensor_dev_attr_in3_max.dev_attr.attr,2376 &sensor_dev_attr_in4_max.dev_attr.attr,2377 &sensor_dev_attr_in5_max.dev_attr.attr,2378 &sensor_dev_attr_in6_max.dev_attr.attr,2379 &sensor_dev_attr_in7_max.dev_attr.attr,2380 &sensor_dev_attr_in8_max.dev_attr.attr,2381 &sensor_dev_attr_in9_max.dev_attr.attr,2382 &sensor_dev_attr_in10_max.dev_attr.attr,2383 &sensor_dev_attr_in11_max.dev_attr.attr,2384 &sensor_dev_attr_in12_max.dev_attr.attr,2385 &sensor_dev_attr_in13_max.dev_attr.attr,2386 &sensor_dev_attr_in14_max.dev_attr.attr,2387 &sensor_dev_attr_in15_max.dev_attr.attr,2388 &sensor_dev_attr_in16_max.dev_attr.attr,2389 &sensor_dev_attr_temp1_input.dev_attr.attr,2390 &sensor_dev_attr_temp2_input.dev_attr.attr,2391 &sensor_dev_attr_temp3_input.dev_attr.attr,2392 &sensor_dev_attr_temp1_min.dev_attr.attr,2393 &sensor_dev_attr_temp2_min.dev_attr.attr,2394 &sensor_dev_attr_temp3_min.dev_attr.attr,2395 &sensor_dev_attr_temp1_max.dev_attr.attr,2396 &sensor_dev_attr_temp2_max.dev_attr.attr,2397 &sensor_dev_attr_temp3_max.dev_attr.attr,2398 &sensor_dev_attr_temp1_auto_base.dev_attr.attr,2399 &sensor_dev_attr_temp2_auto_base.dev_attr.attr,2400 &sensor_dev_attr_temp3_auto_base.dev_attr.attr,2401 &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,2402 &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,2403 &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,2404 &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,2405 &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,2406 &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,2407 &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,2408 &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,2409 &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,2410 &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,2411 &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,2412 &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,2413 &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,2414 &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,2415 &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,2416 &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,2417 &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,2418 &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,2419 &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,2420 &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,2421 &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,2422 &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,2423 &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,2424 &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,2425 &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,2426 &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,2427 &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,2428 &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,2429 &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,2430 &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,2431 &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,2432 &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,2433 &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,2434 &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,2435 &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,2436 &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,2437 &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,2438 &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,2439 &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,2440 &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,2441 &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,2442 &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,2443 &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,2444 &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,2445 &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,2446 &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,2447 &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,2448 &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,2449 &sensor_dev_attr_fan1_input.dev_attr.attr,2450 &sensor_dev_attr_fan2_input.dev_attr.attr,2451 &sensor_dev_attr_fan3_input.dev_attr.attr,2452 &sensor_dev_attr_fan4_input.dev_attr.attr,2453 &sensor_dev_attr_fan1_min.dev_attr.attr,2454 &sensor_dev_attr_fan2_min.dev_attr.attr,2455 &sensor_dev_attr_fan3_min.dev_attr.attr,2456 &sensor_dev_attr_fan4_min.dev_attr.attr,2457 &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,2458 &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,2459 &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,2460 &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,2461 &sensor_dev_attr_pwm1.dev_attr.attr,2462 &sensor_dev_attr_pwm2.dev_attr.attr,2463 &sensor_dev_attr_pwm1_enable.dev_attr.attr,2464 &sensor_dev_attr_pwm2_enable.dev_attr.attr,2465 &sensor_dev_attr_pwm1_freq.dev_attr.attr,2466 &sensor_dev_attr_pwm2_freq.dev_attr.attr,2467 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,2468 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,2469 &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,2470 &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,2471 &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,2472 &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,2473 &dev_attr_pwm_auto_prochot_ramp.attr,2474 &dev_attr_pwm_auto_vrdhot_ramp.attr,2475 &sensor_dev_attr_cpu0_vid.dev_attr.attr,2476 &sensor_dev_attr_cpu1_vid.dev_attr.attr,2477 &sensor_dev_attr_prochot1.dev_attr.attr,2478 &sensor_dev_attr_prochot2.dev_attr.attr,2479 &sensor_dev_attr_prochot1_avg.dev_attr.attr,2480 &sensor_dev_attr_prochot2_avg.dev_attr.attr,2481 &sensor_dev_attr_prochot1_max.dev_attr.attr,2482 &sensor_dev_attr_prochot2_max.dev_attr.attr,2483 &sensor_dev_attr_prochot1_override.dev_attr.attr,2484 &sensor_dev_attr_prochot2_override.dev_attr.attr,2485 &sensor_dev_attr_prochot1_interval.dev_attr.attr,2486 &sensor_dev_attr_prochot2_interval.dev_attr.attr,2487 &dev_attr_prochot_override_duty_cycle.attr,2488 &dev_attr_prochot_short.attr,2489 &sensor_dev_attr_vrdhot1.dev_attr.attr,2490 &sensor_dev_attr_vrdhot2.dev_attr.attr,2491 &dev_attr_gpio.attr,2492 &dev_attr_alarms.attr,2493 NULL2494};2495 2496ATTRIBUTE_GROUPS(lm93);2497 2498static void lm93_init_client(struct i2c_client *client)2499{2500 int i;2501 u8 reg;2502 2503 /* configure VID pin input thresholds */2504 reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);2505 lm93_write_byte(client, LM93_REG_GPI_VID_CTL,2506 reg | (vid_agtl ? 0x03 : 0x00));2507 2508 if (init) {2509 /* enable #ALERT pin */2510 reg = lm93_read_byte(client, LM93_REG_CONFIG);2511 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);2512 2513 /* enable ASF mode for BMC status registers */2514 reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);2515 lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);2516 2517 /* set sleep state to S0 */2518 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);2519 2520 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */2521 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);2522 reg &= ~0x03;2523 reg &= ~(vccp_limit_type[0] ? 0x10 : 0);2524 reg &= ~(vccp_limit_type[1] ? 0x20 : 0);2525 lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);2526 }2527 2528 /* start monitoring */2529 reg = lm93_read_byte(client, LM93_REG_CONFIG);2530 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);2531 2532 /* spin until ready */2533 for (i = 0; i < 20; i++) {2534 msleep(10);2535 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)2536 return;2537 }2538 2539 dev_warn(&client->dev,2540 "timed out waiting for sensor chip to signal ready!\n");2541}2542 2543/* Return 0 if detection is successful, -ENODEV otherwise */2544static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)2545{2546 struct i2c_adapter *adapter = client->adapter;2547 int mfr, ver;2548 const char *name;2549 2550 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))2551 return -ENODEV;2552 2553 /* detection */2554 mfr = lm93_read_byte(client, LM93_REG_MFR_ID);2555 if (mfr != 0x01) {2556 dev_dbg(&adapter->dev,2557 "detect failed, bad manufacturer id 0x%02x!\n", mfr);2558 return -ENODEV;2559 }2560 2561 ver = lm93_read_byte(client, LM93_REG_VER);2562 switch (ver) {2563 case LM93_MFR_ID:2564 case LM93_MFR_ID_PROTOTYPE:2565 name = "lm93";2566 break;2567 case LM94_MFR_ID_2:2568 case LM94_MFR_ID:2569 case LM94_MFR_ID_PROTOTYPE:2570 name = "lm94";2571 break;2572 default:2573 dev_dbg(&adapter->dev,2574 "detect failed, bad version id 0x%02x!\n", ver);2575 return -ENODEV;2576 }2577 2578 strscpy(info->type, name, I2C_NAME_SIZE);2579 dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n",2580 client->name, i2c_adapter_id(client->adapter),2581 client->addr);2582 2583 return 0;2584}2585 2586static int lm93_probe(struct i2c_client *client)2587{2588 struct device *dev = &client->dev;2589 struct lm93_data *data;2590 struct device *hwmon_dev;2591 int func;2592 void (*update)(struct lm93_data *, struct i2c_client *);2593 2594 /* choose update routine based on bus capabilities */2595 func = i2c_get_functionality(client->adapter);2596 if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&2597 (!disable_block)) {2598 dev_dbg(dev, "using SMBus block data transactions\n");2599 update = lm93_update_client_full;2600 } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {2601 dev_dbg(dev, "disabled SMBus block data transactions\n");2602 update = lm93_update_client_min;2603 } else {2604 dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n");2605 return -ENODEV;2606 }2607 2608 data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL);2609 if (!data)2610 return -ENOMEM;2611 2612 /* housekeeping */2613 data->client = client;2614 data->update = update;2615 mutex_init(&data->update_lock);2616 2617 /* initialize the chip */2618 lm93_init_client(client);2619 2620 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,2621 data,2622 lm93_groups);2623 return PTR_ERR_OR_ZERO(hwmon_dev);2624}2625 2626static const struct i2c_device_id lm93_id[] = {2627 { "lm93" },2628 { "lm94" },2629 { }2630};2631MODULE_DEVICE_TABLE(i2c, lm93_id);2632 2633static struct i2c_driver lm93_driver = {2634 .class = I2C_CLASS_HWMON,2635 .driver = {2636 .name = "lm93",2637 },2638 .probe = lm93_probe,2639 .id_table = lm93_id,2640 .detect = lm93_detect,2641 .address_list = normal_i2c,2642};2643 2644module_i2c_driver(lm93_driver);2645 2646MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "2647 "Hans J. Koch <hjk@hansjkoch.de>");2648MODULE_DESCRIPTION("LM93 driver");2649MODULE_LICENSE("GPL");2650