1 /* 2 * lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring 3 * 4 * Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com> 5 * Copyright (c) 2004 Utilitek Systems, Inc. 6 * 7 * derived in part from lm78.c: 8 * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> 9 * 10 * derived in part from lm85.c: 11 * Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> 12 * Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de> 13 * 14 * derived in part from w83l785ts.c: 15 * Copyright (c) 2003-2004 Jean Delvare <jdelvare@suse.de> 16 * 17 * Ported to Linux 2.6 by Eric J. Bowersox <ericb@aspsys.com> 18 * Copyright (c) 2005 Aspen Systems, Inc. 19 * 20 * Adapted to 2.6.20 by Carsten Emde <cbe@osadl.org> 21 * Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab 22 * 23 * Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de> 24 * Copyright (c) 2007 Hans J. Koch, Linutronix GmbH 25 * 26 * This program is free software; you can redistribute it and/or modify 27 * it under the terms of the GNU General Public License as published by 28 * the Free Software Foundation; either version 2 of the License, or 29 * (at your option) any later version. 30 * 31 * This program is distributed in the hope that it will be useful, 32 * but WITHOUT ANY WARRANTY; without even the implied warranty of 33 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 34 * GNU General Public License for more details. 35 * 36 * You should have received a copy of the GNU General Public License 37 * along with this program; if not, write to the Free Software 38 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 39 */ 40 41 #include <linux/module.h> 42 #include <linux/init.h> 43 #include <linux/slab.h> 44 #include <linux/i2c.h> 45 #include <linux/hwmon.h> 46 #include <linux/hwmon-sysfs.h> 47 #include <linux/hwmon-vid.h> 48 #include <linux/err.h> 49 #include <linux/delay.h> 50 #include <linux/jiffies.h> 51 52 /* LM93 REGISTER ADDRESSES */ 53 54 /* miscellaneous */ 55 #define LM93_REG_MFR_ID 0x3e 56 #define LM93_REG_VER 0x3f 57 #define LM93_REG_STATUS_CONTROL 0xe2 58 #define LM93_REG_CONFIG 0xe3 59 #define LM93_REG_SLEEP_CONTROL 0xe4 60 61 /* alarm values start here */ 62 #define LM93_REG_HOST_ERROR_1 0x48 63 64 /* voltage inputs: in1-in16 (nr => 0-15) */ 65 #define LM93_REG_IN(nr) (0x56 + (nr)) 66 #define LM93_REG_IN_MIN(nr) (0x90 + (nr) * 2) 67 #define LM93_REG_IN_MAX(nr) (0x91 + (nr) * 2) 68 69 /* temperature inputs: temp1-temp4 (nr => 0-3) */ 70 #define LM93_REG_TEMP(nr) (0x50 + (nr)) 71 #define LM93_REG_TEMP_MIN(nr) (0x78 + (nr) * 2) 72 #define LM93_REG_TEMP_MAX(nr) (0x79 + (nr) * 2) 73 74 /* temp[1-4]_auto_boost (nr => 0-3) */ 75 #define LM93_REG_BOOST(nr) (0x80 + (nr)) 76 77 /* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */ 78 #define LM93_REG_PROCHOT_CUR(nr) (0x67 + (nr) * 2) 79 #define LM93_REG_PROCHOT_AVG(nr) (0x68 + (nr) * 2) 80 #define LM93_REG_PROCHOT_MAX(nr) (0xb0 + (nr)) 81 82 /* fan tach inputs: fan1-fan4 (nr => 0-3) */ 83 #define LM93_REG_FAN(nr) (0x6e + (nr) * 2) 84 #define LM93_REG_FAN_MIN(nr) (0xb4 + (nr) * 2) 85 86 /* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */ 87 #define LM93_REG_PWM_CTL(nr, reg) (0xc8 + (reg) + (nr) * 4) 88 #define LM93_PWM_CTL1 0x0 89 #define LM93_PWM_CTL2 0x1 90 #define LM93_PWM_CTL3 0x2 91 #define LM93_PWM_CTL4 0x3 92 93 /* GPIO input state */ 94 #define LM93_REG_GPI 0x6b 95 96 /* vid inputs: vid1-vid2 (nr => 0-1) */ 97 #define LM93_REG_VID(nr) (0x6c + (nr)) 98 99 /* vccp1 & vccp2: VID relative inputs (nr => 0-1) */ 100 #define LM93_REG_VCCP_LIMIT_OFF(nr) (0xb2 + (nr)) 101 102 /* temp[1-4]_auto_boost_hyst */ 103 #define LM93_REG_BOOST_HYST_12 0xc0 104 #define LM93_REG_BOOST_HYST_34 0xc1 105 #define LM93_REG_BOOST_HYST(nr) (0xc0 + (nr)/2) 106 107 /* temp[1-4]_auto_pwm_[min|hyst] */ 108 #define LM93_REG_PWM_MIN_HYST_12 0xc3 109 #define LM93_REG_PWM_MIN_HYST_34 0xc4 110 #define LM93_REG_PWM_MIN_HYST(nr) (0xc3 + (nr)/2) 111 112 /* prochot_override & prochot_interval */ 113 #define LM93_REG_PROCHOT_OVERRIDE 0xc6 114 #define LM93_REG_PROCHOT_INTERVAL 0xc7 115 116 /* temp[1-4]_auto_base (nr => 0-3) */ 117 #define LM93_REG_TEMP_BASE(nr) (0xd0 + (nr)) 118 119 /* temp[1-4]_auto_offsets (step => 0-11) */ 120 #define LM93_REG_TEMP_OFFSET(step) (0xd4 + (step)) 121 122 /* #PROCHOT & #VRDHOT PWM ramp control */ 123 #define LM93_REG_PWM_RAMP_CTL 0xbf 124 125 /* miscellaneous */ 126 #define LM93_REG_SFC1 0xbc 127 #define LM93_REG_SFC2 0xbd 128 #define LM93_REG_GPI_VID_CTL 0xbe 129 #define LM93_REG_SF_TACH_TO_PWM 0xe0 130 131 /* error masks */ 132 #define LM93_REG_GPI_ERR_MASK 0xec 133 #define LM93_REG_MISC_ERR_MASK 0xed 134 135 /* LM93 REGISTER VALUES */ 136 #define LM93_MFR_ID 0x73 137 #define LM93_MFR_ID_PROTOTYPE 0x72 138 139 /* LM94 REGISTER VALUES */ 140 #define LM94_MFR_ID_2 0x7a 141 #define LM94_MFR_ID 0x79 142 #define LM94_MFR_ID_PROTOTYPE 0x78 143 144 /* SMBus capabilities */ 145 #define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \ 146 I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA) 147 #define LM93_SMBUS_FUNC_MIN (I2C_FUNC_SMBUS_BYTE_DATA | \ 148 I2C_FUNC_SMBUS_WORD_DATA) 149 150 /* Addresses to scan */ 151 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 152 153 /* Insmod parameters */ 154 155 static bool disable_block; 156 module_param(disable_block, bool, 0); 157 MODULE_PARM_DESC(disable_block, 158 "Set to non-zero to disable SMBus block data transactions."); 159 160 static bool init; 161 module_param(init, bool, 0); 162 MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization."); 163 164 static int vccp_limit_type[2] = {0, 0}; 165 module_param_array(vccp_limit_type, int, NULL, 0); 166 MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes."); 167 168 static int vid_agtl; 169 module_param(vid_agtl, int, 0); 170 MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds."); 171 172 /* Driver data */ 173 static struct i2c_driver lm93_driver; 174 175 /* LM93 BLOCK READ COMMANDS */ 176 static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = { 177 { 0xf2, 8 }, 178 { 0xf3, 8 }, 179 { 0xf4, 6 }, 180 { 0xf5, 16 }, 181 { 0xf6, 4 }, 182 { 0xf7, 8 }, 183 { 0xf8, 12 }, 184 { 0xf9, 32 }, 185 { 0xfa, 8 }, 186 { 0xfb, 8 }, 187 { 0xfc, 16 }, 188 { 0xfd, 9 }, 189 }; 190 191 /* 192 * ALARMS: SYSCTL format described further below 193 * REG: 64 bits in 8 registers, as immediately below 194 */ 195 struct block1_t { 196 u8 host_status_1; 197 u8 host_status_2; 198 u8 host_status_3; 199 u8 host_status_4; 200 u8 p1_prochot_status; 201 u8 p2_prochot_status; 202 u8 gpi_status; 203 u8 fan_status; 204 }; 205 206 /* 207 * Client-specific data 208 */ 209 struct lm93_data { 210 struct i2c_client *client; 211 212 struct mutex update_lock; 213 unsigned long last_updated; /* In jiffies */ 214 215 /* client update function */ 216 void (*update)(struct lm93_data *, struct i2c_client *); 217 218 char valid; /* !=0 if following fields are valid */ 219 220 /* register values, arranged by block read groups */ 221 struct block1_t block1; 222 223 /* 224 * temp1 - temp4: unfiltered readings 225 * temp1 - temp2: filtered readings 226 */ 227 u8 block2[6]; 228 229 /* vin1 - vin16: readings */ 230 u8 block3[16]; 231 232 /* prochot1 - prochot2: readings */ 233 struct { 234 u8 cur; 235 u8 avg; 236 } block4[2]; 237 238 /* fan counts 1-4 => 14-bits, LE, *left* justified */ 239 u16 block5[4]; 240 241 /* block6 has a lot of data we don't need */ 242 struct { 243 u8 min; 244 u8 max; 245 } temp_lim[4]; 246 247 /* vin1 - vin16: low and high limits */ 248 struct { 249 u8 min; 250 u8 max; 251 } block7[16]; 252 253 /* fan count limits 1-4 => same format as block5 */ 254 u16 block8[4]; 255 256 /* pwm control registers (2 pwms, 4 regs) */ 257 u8 block9[2][4]; 258 259 /* auto/pwm base temp and offset temp registers */ 260 struct { 261 u8 base[4]; 262 u8 offset[12]; 263 } block10; 264 265 /* master config register */ 266 u8 config; 267 268 /* VID1 & VID2 => register format, 6-bits, right justified */ 269 u8 vid[2]; 270 271 /* prochot1 - prochot2: limits */ 272 u8 prochot_max[2]; 273 274 /* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */ 275 u8 vccp_limits[2]; 276 277 /* GPIO input state (register format, i.e. inverted) */ 278 u8 gpi; 279 280 /* #PROCHOT override (register format) */ 281 u8 prochot_override; 282 283 /* #PROCHOT intervals (register format) */ 284 u8 prochot_interval; 285 286 /* Fan Boost Temperatures (register format) */ 287 u8 boost[4]; 288 289 /* Fan Boost Hysteresis (register format) */ 290 u8 boost_hyst[2]; 291 292 /* Temperature Zone Min. PWM & Hysteresis (register format) */ 293 u8 auto_pwm_min_hyst[2]; 294 295 /* #PROCHOT & #VRDHOT PWM Ramp Control */ 296 u8 pwm_ramp_ctl; 297 298 /* miscellaneous setup regs */ 299 u8 sfc1; 300 u8 sfc2; 301 u8 sf_tach_to_pwm; 302 303 /* 304 * The two PWM CTL2 registers can read something other than what was 305 * last written for the OVR_DC field (duty cycle override). So, we 306 * save the user-commanded value here. 307 */ 308 u8 pwm_override[2]; 309 }; 310 311 /* 312 * VID: mV 313 * REG: 6-bits, right justified, *always* using Intel VRM/VRD 10 314 */ 315 static int LM93_VID_FROM_REG(u8 reg) 316 { 317 return vid_from_reg((reg & 0x3f), 100); 318 } 319 320 /* min, max, and nominal register values, per channel (u8) */ 321 static const u8 lm93_vin_reg_min[16] = { 322 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 323 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae, 324 }; 325 static const u8 lm93_vin_reg_max[16] = { 326 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 327 0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1, 328 }; 329 /* 330 * Values from the datasheet. They're here for documentation only. 331 * static const u8 lm93_vin_reg_nom[16] = { 332 * 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 333 * 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0, 334 * }; 335 */ 336 337 /* min, max, and nominal voltage readings, per channel (mV)*/ 338 static const unsigned long lm93_vin_val_min[16] = { 339 0, 0, 0, 0, 0, 0, 0, 0, 340 0, 0, 0, 0, 0, 0, 0, 3000, 341 }; 342 343 static const unsigned long lm93_vin_val_max[16] = { 344 1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600, 345 4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600, 346 }; 347 /* 348 * Values from the datasheet. They're here for documentation only. 349 * static const unsigned long lm93_vin_val_nom[16] = { 350 * 927, 927, 927, 1200, 1500, 1500, 1200, 1200, 351 * 3300, 5000, 2500, 1969, 984, 984, 309, 3300, 352 * }; 353 */ 354 355 static unsigned LM93_IN_FROM_REG(int nr, u8 reg) 356 { 357 const long uv_max = lm93_vin_val_max[nr] * 1000; 358 const long uv_min = lm93_vin_val_min[nr] * 1000; 359 360 const long slope = (uv_max - uv_min) / 361 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]); 362 const long intercept = uv_min - slope * lm93_vin_reg_min[nr]; 363 364 return (slope * reg + intercept + 500) / 1000; 365 } 366 367 /* 368 * IN: mV, limits determined by channel nr 369 * REG: scaling determined by channel nr 370 */ 371 static u8 LM93_IN_TO_REG(int nr, unsigned val) 372 { 373 /* range limit */ 374 const long mv = clamp_val(val, 375 lm93_vin_val_min[nr], lm93_vin_val_max[nr]); 376 377 /* try not to lose too much precision here */ 378 const long uv = mv * 1000; 379 const long uv_max = lm93_vin_val_max[nr] * 1000; 380 const long uv_min = lm93_vin_val_min[nr] * 1000; 381 382 /* convert */ 383 const long slope = (uv_max - uv_min) / 384 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]); 385 const long intercept = uv_min - slope * lm93_vin_reg_min[nr]; 386 387 u8 result = ((uv - intercept + (slope/2)) / slope); 388 result = clamp_val(result, 389 lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]); 390 return result; 391 } 392 393 /* vid in mV, upper == 0 indicates low limit, otherwise upper limit */ 394 static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid) 395 { 396 const long uv_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) : 397 (((reg >> 0 & 0x0f) + 1) * -25000); 398 const long uv_vid = vid * 1000; 399 return (uv_vid + uv_offset + 5000) / 10000; 400 } 401 402 #define LM93_IN_MIN_FROM_REG(reg, vid) LM93_IN_REL_FROM_REG((reg), 0, (vid)) 403 #define LM93_IN_MAX_FROM_REG(reg, vid) LM93_IN_REL_FROM_REG((reg), 1, (vid)) 404 405 /* 406 * vid in mV , upper == 0 indicates low limit, otherwise upper limit 407 * upper also determines which nibble of the register is returned 408 * (the other nibble will be 0x0) 409 */ 410 static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid) 411 { 412 long uv_offset = vid * 1000 - val * 10000; 413 if (upper) { 414 uv_offset = clamp_val(uv_offset, 12500, 200000); 415 return (u8)((uv_offset / 12500 - 1) << 4); 416 } else { 417 uv_offset = clamp_val(uv_offset, -400000, -25000); 418 return (u8)((uv_offset / -25000 - 1) << 0); 419 } 420 } 421 422 /* 423 * TEMP: 1/1000 degrees C (-128C to +127C) 424 * REG: 1C/bit, two's complement 425 */ 426 static int LM93_TEMP_FROM_REG(u8 reg) 427 { 428 return (s8)reg * 1000; 429 } 430 431 #define LM93_TEMP_MIN (-128000) 432 #define LM93_TEMP_MAX (127000) 433 434 /* 435 * TEMP: 1/1000 degrees C (-128C to +127C) 436 * REG: 1C/bit, two's complement 437 */ 438 static u8 LM93_TEMP_TO_REG(long temp) 439 { 440 int ntemp = clamp_val(temp, LM93_TEMP_MIN, LM93_TEMP_MAX); 441 ntemp += (ntemp < 0 ? -500 : 500); 442 return (u8)(ntemp / 1000); 443 } 444 445 /* Determine 4-bit temperature offset resolution */ 446 static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr) 447 { 448 /* mode: 0 => 1C/bit, nonzero => 0.5C/bit */ 449 return sfc2 & (nr < 2 ? 0x10 : 0x20); 450 } 451 452 /* 453 * This function is common to all 4-bit temperature offsets 454 * reg is 4 bits right justified 455 * mode 0 => 1C/bit, mode !0 => 0.5C/bit 456 */ 457 static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode) 458 { 459 return (reg & 0x0f) * (mode ? 5 : 10); 460 } 461 462 #define LM93_TEMP_OFFSET_MIN (0) 463 #define LM93_TEMP_OFFSET_MAX0 (150) 464 #define LM93_TEMP_OFFSET_MAX1 (75) 465 466 /* 467 * This function is common to all 4-bit temperature offsets 468 * returns 4 bits right justified 469 * mode 0 => 1C/bit, mode !0 => 0.5C/bit 470 */ 471 static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode) 472 { 473 int factor = mode ? 5 : 10; 474 475 off = clamp_val(off, LM93_TEMP_OFFSET_MIN, 476 mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0); 477 return (u8)((off + factor/2) / factor); 478 } 479 480 /* 0 <= nr <= 3 */ 481 static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode) 482 { 483 /* temp1-temp2 (nr=0,1) use lower nibble */ 484 if (nr < 2) 485 return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode); 486 487 /* temp3-temp4 (nr=2,3) use upper nibble */ 488 else 489 return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode); 490 } 491 492 /* 493 * TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero)) 494 * REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero) 495 * 0 <= nr <= 3 496 */ 497 static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode) 498 { 499 u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode); 500 501 /* temp1-temp2 (nr=0,1) use lower nibble */ 502 if (nr < 2) 503 return (old & 0xf0) | (new & 0x0f); 504 505 /* temp3-temp4 (nr=2,3) use upper nibble */ 506 else 507 return (new << 4 & 0xf0) | (old & 0x0f); 508 } 509 510 static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr, 511 int mode) 512 { 513 u8 reg; 514 515 switch (nr) { 516 case 0: 517 reg = data->boost_hyst[0] & 0x0f; 518 break; 519 case 1: 520 reg = data->boost_hyst[0] >> 4 & 0x0f; 521 break; 522 case 2: 523 reg = data->boost_hyst[1] & 0x0f; 524 break; 525 case 3: 526 default: 527 reg = data->boost_hyst[1] >> 4 & 0x0f; 528 break; 529 } 530 531 return LM93_TEMP_FROM_REG(data->boost[nr]) - 532 LM93_TEMP_OFFSET_FROM_REG(reg, mode); 533 } 534 535 static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst, 536 int nr, int mode) 537 { 538 u8 reg = LM93_TEMP_OFFSET_TO_REG( 539 (LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode); 540 541 switch (nr) { 542 case 0: 543 reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f); 544 break; 545 case 1: 546 reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f); 547 break; 548 case 2: 549 reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f); 550 break; 551 case 3: 552 default: 553 reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f); 554 break; 555 } 556 557 return reg; 558 } 559 560 /* 561 * PWM: 0-255 per sensors documentation 562 * REG: 0-13 as mapped below... right justified 563 */ 564 enum pwm_freq { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ }; 565 566 static int lm93_pwm_map[2][16] = { 567 { 568 0x00, /* 0.00% */ 0x40, /* 25.00% */ 569 0x50, /* 31.25% */ 0x60, /* 37.50% */ 570 0x70, /* 43.75% */ 0x80, /* 50.00% */ 571 0x90, /* 56.25% */ 0xa0, /* 62.50% */ 572 0xb0, /* 68.75% */ 0xc0, /* 75.00% */ 573 0xd0, /* 81.25% */ 0xe0, /* 87.50% */ 574 0xf0, /* 93.75% */ 0xff, /* 100.00% */ 575 0xff, 0xff, /* 14, 15 are reserved and should never occur */ 576 }, 577 { 578 0x00, /* 0.00% */ 0x40, /* 25.00% */ 579 0x49, /* 28.57% */ 0x52, /* 32.14% */ 580 0x5b, /* 35.71% */ 0x64, /* 39.29% */ 581 0x6d, /* 42.86% */ 0x76, /* 46.43% */ 582 0x80, /* 50.00% */ 0x89, /* 53.57% */ 583 0x92, /* 57.14% */ 0xb6, /* 71.43% */ 584 0xdb, /* 85.71% */ 0xff, /* 100.00% */ 585 0xff, 0xff, /* 14, 15 are reserved and should never occur */ 586 }, 587 }; 588 589 static int LM93_PWM_FROM_REG(u8 reg, enum pwm_freq freq) 590 { 591 return lm93_pwm_map[freq][reg & 0x0f]; 592 } 593 594 /* round up to nearest match */ 595 static u8 LM93_PWM_TO_REG(int pwm, enum pwm_freq freq) 596 { 597 int i; 598 for (i = 0; i < 13; i++) 599 if (pwm <= lm93_pwm_map[freq][i]) 600 break; 601 602 /* can fall through with i==13 */ 603 return (u8)i; 604 } 605 606 static int LM93_FAN_FROM_REG(u16 regs) 607 { 608 const u16 count = le16_to_cpu(regs) >> 2; 609 return count == 0 ? -1 : count == 0x3fff ? 0 : 1350000 / count; 610 } 611 612 /* 613 * RPM: (82.5 to 1350000) 614 * REG: 14-bits, LE, *left* justified 615 */ 616 static u16 LM93_FAN_TO_REG(long rpm) 617 { 618 u16 count, regs; 619 620 if (rpm == 0) { 621 count = 0x3fff; 622 } else { 623 rpm = clamp_val(rpm, 1, 1000000); 624 count = clamp_val((1350000 + rpm) / rpm, 1, 0x3ffe); 625 } 626 627 regs = count << 2; 628 return cpu_to_le16(regs); 629 } 630 631 /* 632 * PWM FREQ: HZ 633 * REG: 0-7 as mapped below 634 */ 635 static int lm93_pwm_freq_map[8] = { 636 22500, 96, 84, 72, 60, 48, 36, 12 637 }; 638 639 static int LM93_PWM_FREQ_FROM_REG(u8 reg) 640 { 641 return lm93_pwm_freq_map[reg & 0x07]; 642 } 643 644 /* round up to nearest match */ 645 static u8 LM93_PWM_FREQ_TO_REG(int freq) 646 { 647 int i; 648 for (i = 7; i > 0; i--) 649 if (freq <= lm93_pwm_freq_map[i]) 650 break; 651 652 /* can fall through with i==0 */ 653 return (u8)i; 654 } 655 656 /* 657 * TIME: 1/100 seconds 658 * REG: 0-7 as mapped below 659 */ 660 static int lm93_spinup_time_map[8] = { 661 0, 10, 25, 40, 70, 100, 200, 400, 662 }; 663 664 static int LM93_SPINUP_TIME_FROM_REG(u8 reg) 665 { 666 return lm93_spinup_time_map[reg >> 5 & 0x07]; 667 } 668 669 /* round up to nearest match */ 670 static u8 LM93_SPINUP_TIME_TO_REG(int time) 671 { 672 int i; 673 for (i = 0; i < 7; i++) 674 if (time <= lm93_spinup_time_map[i]) 675 break; 676 677 /* can fall through with i==8 */ 678 return (u8)i; 679 } 680 681 #define LM93_RAMP_MIN 0 682 #define LM93_RAMP_MAX 75 683 684 static int LM93_RAMP_FROM_REG(u8 reg) 685 { 686 return (reg & 0x0f) * 5; 687 } 688 689 /* 690 * RAMP: 1/100 seconds 691 * REG: 50mS/bit 4-bits right justified 692 */ 693 static u8 LM93_RAMP_TO_REG(int ramp) 694 { 695 ramp = clamp_val(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX); 696 return (u8)((ramp + 2) / 5); 697 } 698 699 /* 700 * PROCHOT: 0-255, 0 => 0%, 255 => > 96.6% 701 * REG: (same) 702 */ 703 static u8 LM93_PROCHOT_TO_REG(long prochot) 704 { 705 prochot = clamp_val(prochot, 0, 255); 706 return (u8)prochot; 707 } 708 709 /* 710 * PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds) 711 * REG: 0-9 as mapped below 712 */ 713 static int lm93_interval_map[10] = { 714 73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200, 715 }; 716 717 static int LM93_INTERVAL_FROM_REG(u8 reg) 718 { 719 return lm93_interval_map[reg & 0x0f]; 720 } 721 722 /* round up to nearest match */ 723 static u8 LM93_INTERVAL_TO_REG(long interval) 724 { 725 int i; 726 for (i = 0; i < 9; i++) 727 if (interval <= lm93_interval_map[i]) 728 break; 729 730 /* can fall through with i==9 */ 731 return (u8)i; 732 } 733 734 /* 735 * GPIO: 0-255, GPIO0 is LSB 736 * REG: inverted 737 */ 738 static unsigned LM93_GPI_FROM_REG(u8 reg) 739 { 740 return ~reg & 0xff; 741 } 742 743 /* 744 * alarm bitmask definitions 745 * The LM93 has nearly 64 bits of error status... I've pared that down to 746 * what I think is a useful subset in order to fit it into 32 bits. 747 * 748 * Especially note that the #VRD_HOT alarms are missing because we provide 749 * that information as values in another sysfs file. 750 * 751 * If libsensors is extended to support 64 bit values, this could be revisited. 752 */ 753 #define LM93_ALARM_IN1 0x00000001 754 #define LM93_ALARM_IN2 0x00000002 755 #define LM93_ALARM_IN3 0x00000004 756 #define LM93_ALARM_IN4 0x00000008 757 #define LM93_ALARM_IN5 0x00000010 758 #define LM93_ALARM_IN6 0x00000020 759 #define LM93_ALARM_IN7 0x00000040 760 #define LM93_ALARM_IN8 0x00000080 761 #define LM93_ALARM_IN9 0x00000100 762 #define LM93_ALARM_IN10 0x00000200 763 #define LM93_ALARM_IN11 0x00000400 764 #define LM93_ALARM_IN12 0x00000800 765 #define LM93_ALARM_IN13 0x00001000 766 #define LM93_ALARM_IN14 0x00002000 767 #define LM93_ALARM_IN15 0x00004000 768 #define LM93_ALARM_IN16 0x00008000 769 #define LM93_ALARM_FAN1 0x00010000 770 #define LM93_ALARM_FAN2 0x00020000 771 #define LM93_ALARM_FAN3 0x00040000 772 #define LM93_ALARM_FAN4 0x00080000 773 #define LM93_ALARM_PH1_ERR 0x00100000 774 #define LM93_ALARM_PH2_ERR 0x00200000 775 #define LM93_ALARM_SCSI1_ERR 0x00400000 776 #define LM93_ALARM_SCSI2_ERR 0x00800000 777 #define LM93_ALARM_DVDDP1_ERR 0x01000000 778 #define LM93_ALARM_DVDDP2_ERR 0x02000000 779 #define LM93_ALARM_D1_ERR 0x04000000 780 #define LM93_ALARM_D2_ERR 0x08000000 781 #define LM93_ALARM_TEMP1 0x10000000 782 #define LM93_ALARM_TEMP2 0x20000000 783 #define LM93_ALARM_TEMP3 0x40000000 784 785 static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1) 786 { 787 unsigned result; 788 result = b1.host_status_2 & 0x3f; 789 790 if (vccp_limit_type[0]) 791 result |= (b1.host_status_4 & 0x10) << 2; 792 else 793 result |= b1.host_status_2 & 0x40; 794 795 if (vccp_limit_type[1]) 796 result |= (b1.host_status_4 & 0x20) << 2; 797 else 798 result |= b1.host_status_2 & 0x80; 799 800 result |= b1.host_status_3 << 8; 801 result |= (b1.fan_status & 0x0f) << 16; 802 result |= (b1.p1_prochot_status & 0x80) << 13; 803 result |= (b1.p2_prochot_status & 0x80) << 14; 804 result |= (b1.host_status_4 & 0xfc) << 20; 805 result |= (b1.host_status_1 & 0x07) << 28; 806 return result; 807 } 808 809 #define MAX_RETRIES 5 810 811 static u8 lm93_read_byte(struct i2c_client *client, u8 reg) 812 { 813 int value, i; 814 815 /* retry in case of read errors */ 816 for (i = 1; i <= MAX_RETRIES; i++) { 817 value = i2c_smbus_read_byte_data(client, reg); 818 if (value >= 0) { 819 return value; 820 } else { 821 dev_warn(&client->dev, 822 "lm93: read byte data failed, address 0x%02x.\n", 823 reg); 824 mdelay(i + 3); 825 } 826 827 } 828 829 /* <TODO> what to return in case of error? */ 830 dev_err(&client->dev, "lm93: All read byte retries failed!!\n"); 831 return 0; 832 } 833 834 static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value) 835 { 836 int result; 837 838 /* <TODO> how to handle write errors? */ 839 result = i2c_smbus_write_byte_data(client, reg, value); 840 841 if (result < 0) 842 dev_warn(&client->dev, 843 "lm93: write byte data failed, 0x%02x at address 0x%02x.\n", 844 value, reg); 845 846 return result; 847 } 848 849 static u16 lm93_read_word(struct i2c_client *client, u8 reg) 850 { 851 int value, i; 852 853 /* retry in case of read errors */ 854 for (i = 1; i <= MAX_RETRIES; i++) { 855 value = i2c_smbus_read_word_data(client, reg); 856 if (value >= 0) { 857 return value; 858 } else { 859 dev_warn(&client->dev, 860 "lm93: read word data failed, address 0x%02x.\n", 861 reg); 862 mdelay(i + 3); 863 } 864 865 } 866 867 /* <TODO> what to return in case of error? */ 868 dev_err(&client->dev, "lm93: All read word retries failed!!\n"); 869 return 0; 870 } 871 872 static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value) 873 { 874 int result; 875 876 /* <TODO> how to handle write errors? */ 877 result = i2c_smbus_write_word_data(client, reg, value); 878 879 if (result < 0) 880 dev_warn(&client->dev, 881 "lm93: write word data failed, 0x%04x at address 0x%02x.\n", 882 value, reg); 883 884 return result; 885 } 886 887 static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX]; 888 889 /* 890 * read block data into values, retry if not expected length 891 * fbn => index to lm93_block_read_cmds table 892 * (Fixed Block Number - section 14.5.2 of LM93 datasheet) 893 */ 894 static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values) 895 { 896 int i, result = 0; 897 898 for (i = 1; i <= MAX_RETRIES; i++) { 899 result = i2c_smbus_read_block_data(client, 900 lm93_block_read_cmds[fbn].cmd, lm93_block_buffer); 901 902 if (result == lm93_block_read_cmds[fbn].len) { 903 break; 904 } else { 905 dev_warn(&client->dev, 906 "lm93: block read data failed, command 0x%02x.\n", 907 lm93_block_read_cmds[fbn].cmd); 908 mdelay(i + 3); 909 } 910 } 911 912 if (result == lm93_block_read_cmds[fbn].len) { 913 memcpy(values, lm93_block_buffer, 914 lm93_block_read_cmds[fbn].len); 915 } else { 916 /* <TODO> what to do in case of error? */ 917 } 918 } 919 920 static struct lm93_data *lm93_update_device(struct device *dev) 921 { 922 struct lm93_data *data = dev_get_drvdata(dev); 923 struct i2c_client *client = data->client; 924 const unsigned long interval = HZ + (HZ / 2); 925 926 mutex_lock(&data->update_lock); 927 928 if (time_after(jiffies, data->last_updated + interval) || 929 !data->valid) { 930 931 data->update(data, client); 932 data->last_updated = jiffies; 933 data->valid = 1; 934 } 935 936 mutex_unlock(&data->update_lock); 937 return data; 938 } 939 940 /* update routine for data that has no corresponding SMBus block command */ 941 static void lm93_update_client_common(struct lm93_data *data, 942 struct i2c_client *client) 943 { 944 int i; 945 u8 *ptr; 946 947 /* temp1 - temp4: limits */ 948 for (i = 0; i < 4; i++) { 949 data->temp_lim[i].min = 950 lm93_read_byte(client, LM93_REG_TEMP_MIN(i)); 951 data->temp_lim[i].max = 952 lm93_read_byte(client, LM93_REG_TEMP_MAX(i)); 953 } 954 955 /* config register */ 956 data->config = lm93_read_byte(client, LM93_REG_CONFIG); 957 958 /* vid1 - vid2: values */ 959 for (i = 0; i < 2; i++) 960 data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i)); 961 962 /* prochot1 - prochot2: limits */ 963 for (i = 0; i < 2; i++) 964 data->prochot_max[i] = lm93_read_byte(client, 965 LM93_REG_PROCHOT_MAX(i)); 966 967 /* vccp1 - vccp2: VID relative limits */ 968 for (i = 0; i < 2; i++) 969 data->vccp_limits[i] = lm93_read_byte(client, 970 LM93_REG_VCCP_LIMIT_OFF(i)); 971 972 /* GPIO input state */ 973 data->gpi = lm93_read_byte(client, LM93_REG_GPI); 974 975 /* #PROCHOT override state */ 976 data->prochot_override = lm93_read_byte(client, 977 LM93_REG_PROCHOT_OVERRIDE); 978 979 /* #PROCHOT intervals */ 980 data->prochot_interval = lm93_read_byte(client, 981 LM93_REG_PROCHOT_INTERVAL); 982 983 /* Fan Boost Temperature registers */ 984 for (i = 0; i < 4; i++) 985 data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i)); 986 987 /* Fan Boost Temperature Hyst. registers */ 988 data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12); 989 data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34); 990 991 /* Temperature Zone Min. PWM & Hysteresis registers */ 992 data->auto_pwm_min_hyst[0] = 993 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12); 994 data->auto_pwm_min_hyst[1] = 995 lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34); 996 997 /* #PROCHOT & #VRDHOT PWM Ramp Control register */ 998 data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL); 999 1000 /* misc setup registers */ 1001 data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1); 1002 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1003 data->sf_tach_to_pwm = lm93_read_byte(client, 1004 LM93_REG_SF_TACH_TO_PWM); 1005 1006 /* write back alarm values to clear */ 1007 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) 1008 lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i)); 1009 } 1010 1011 /* update routine which uses SMBus block data commands */ 1012 static void lm93_update_client_full(struct lm93_data *data, 1013 struct i2c_client *client) 1014 { 1015 dev_dbg(&client->dev, "starting device update (block data enabled)\n"); 1016 1017 /* in1 - in16: values & limits */ 1018 lm93_read_block(client, 3, (u8 *)(data->block3)); 1019 lm93_read_block(client, 7, (u8 *)(data->block7)); 1020 1021 /* temp1 - temp4: values */ 1022 lm93_read_block(client, 2, (u8 *)(data->block2)); 1023 1024 /* prochot1 - prochot2: values */ 1025 lm93_read_block(client, 4, (u8 *)(data->block4)); 1026 1027 /* fan1 - fan4: values & limits */ 1028 lm93_read_block(client, 5, (u8 *)(data->block5)); 1029 lm93_read_block(client, 8, (u8 *)(data->block8)); 1030 1031 /* pmw control registers */ 1032 lm93_read_block(client, 9, (u8 *)(data->block9)); 1033 1034 /* alarm values */ 1035 lm93_read_block(client, 1, (u8 *)(&data->block1)); 1036 1037 /* auto/pwm registers */ 1038 lm93_read_block(client, 10, (u8 *)(&data->block10)); 1039 1040 lm93_update_client_common(data, client); 1041 } 1042 1043 /* update routine which uses SMBus byte/word data commands only */ 1044 static void lm93_update_client_min(struct lm93_data *data, 1045 struct i2c_client *client) 1046 { 1047 int i, j; 1048 u8 *ptr; 1049 1050 dev_dbg(&client->dev, "starting device update (block data disabled)\n"); 1051 1052 /* in1 - in16: values & limits */ 1053 for (i = 0; i < 16; i++) { 1054 data->block3[i] = 1055 lm93_read_byte(client, LM93_REG_IN(i)); 1056 data->block7[i].min = 1057 lm93_read_byte(client, LM93_REG_IN_MIN(i)); 1058 data->block7[i].max = 1059 lm93_read_byte(client, LM93_REG_IN_MAX(i)); 1060 } 1061 1062 /* temp1 - temp4: values */ 1063 for (i = 0; i < 4; i++) { 1064 data->block2[i] = 1065 lm93_read_byte(client, LM93_REG_TEMP(i)); 1066 } 1067 1068 /* prochot1 - prochot2: values */ 1069 for (i = 0; i < 2; i++) { 1070 data->block4[i].cur = 1071 lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i)); 1072 data->block4[i].avg = 1073 lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i)); 1074 } 1075 1076 /* fan1 - fan4: values & limits */ 1077 for (i = 0; i < 4; i++) { 1078 data->block5[i] = 1079 lm93_read_word(client, LM93_REG_FAN(i)); 1080 data->block8[i] = 1081 lm93_read_word(client, LM93_REG_FAN_MIN(i)); 1082 } 1083 1084 /* pwm control registers */ 1085 for (i = 0; i < 2; i++) { 1086 for (j = 0; j < 4; j++) { 1087 data->block9[i][j] = 1088 lm93_read_byte(client, LM93_REG_PWM_CTL(i, j)); 1089 } 1090 } 1091 1092 /* alarm values */ 1093 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) { 1094 *(ptr + i) = 1095 lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i); 1096 } 1097 1098 /* auto/pwm (base temp) registers */ 1099 for (i = 0; i < 4; i++) { 1100 data->block10.base[i] = 1101 lm93_read_byte(client, LM93_REG_TEMP_BASE(i)); 1102 } 1103 1104 /* auto/pwm (offset temp) registers */ 1105 for (i = 0; i < 12; i++) { 1106 data->block10.offset[i] = 1107 lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i)); 1108 } 1109 1110 lm93_update_client_common(data, client); 1111 } 1112 1113 /* following are the sysfs callback functions */ 1114 static ssize_t in_show(struct device *dev, struct device_attribute *attr, 1115 char *buf) 1116 { 1117 int nr = (to_sensor_dev_attr(attr))->index; 1118 1119 struct lm93_data *data = lm93_update_device(dev); 1120 return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr])); 1121 } 1122 1123 static SENSOR_DEVICE_ATTR_RO(in1_input, in, 0); 1124 static SENSOR_DEVICE_ATTR_RO(in2_input, in, 1); 1125 static SENSOR_DEVICE_ATTR_RO(in3_input, in, 2); 1126 static SENSOR_DEVICE_ATTR_RO(in4_input, in, 3); 1127 static SENSOR_DEVICE_ATTR_RO(in5_input, in, 4); 1128 static SENSOR_DEVICE_ATTR_RO(in6_input, in, 5); 1129 static SENSOR_DEVICE_ATTR_RO(in7_input, in, 6); 1130 static SENSOR_DEVICE_ATTR_RO(in8_input, in, 7); 1131 static SENSOR_DEVICE_ATTR_RO(in9_input, in, 8); 1132 static SENSOR_DEVICE_ATTR_RO(in10_input, in, 9); 1133 static SENSOR_DEVICE_ATTR_RO(in11_input, in, 10); 1134 static SENSOR_DEVICE_ATTR_RO(in12_input, in, 11); 1135 static SENSOR_DEVICE_ATTR_RO(in13_input, in, 12); 1136 static SENSOR_DEVICE_ATTR_RO(in14_input, in, 13); 1137 static SENSOR_DEVICE_ATTR_RO(in15_input, in, 14); 1138 static SENSOR_DEVICE_ATTR_RO(in16_input, in, 15); 1139 1140 static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, 1141 char *buf) 1142 { 1143 int nr = (to_sensor_dev_attr(attr))->index; 1144 struct lm93_data *data = lm93_update_device(dev); 1145 int vccp = nr - 6; 1146 long rc, vid; 1147 1148 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) { 1149 vid = LM93_VID_FROM_REG(data->vid[vccp]); 1150 rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid); 1151 } else { 1152 rc = LM93_IN_FROM_REG(nr, data->block7[nr].min); 1153 } 1154 return sprintf(buf, "%ld\n", rc); 1155 } 1156 1157 static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, 1158 const char *buf, size_t count) 1159 { 1160 int nr = (to_sensor_dev_attr(attr))->index; 1161 struct lm93_data *data = dev_get_drvdata(dev); 1162 struct i2c_client *client = data->client; 1163 int vccp = nr - 6; 1164 long vid; 1165 unsigned long val; 1166 int err; 1167 1168 err = kstrtoul(buf, 10, &val); 1169 if (err) 1170 return err; 1171 1172 mutex_lock(&data->update_lock); 1173 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) { 1174 vid = LM93_VID_FROM_REG(data->vid[vccp]); 1175 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) | 1176 LM93_IN_REL_TO_REG(val, 0, vid); 1177 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp), 1178 data->vccp_limits[vccp]); 1179 } else { 1180 data->block7[nr].min = LM93_IN_TO_REG(nr, val); 1181 lm93_write_byte(client, LM93_REG_IN_MIN(nr), 1182 data->block7[nr].min); 1183 } 1184 mutex_unlock(&data->update_lock); 1185 return count; 1186 } 1187 1188 static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 0); 1189 static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 1); 1190 static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 2); 1191 static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 3); 1192 static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 4); 1193 static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 5); 1194 static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 6); 1195 static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 7); 1196 static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 8); 1197 static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 9); 1198 static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 10); 1199 static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 11); 1200 static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 12); 1201 static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 13); 1202 static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 14); 1203 static SENSOR_DEVICE_ATTR_RW(in16_min, in_min, 15); 1204 1205 static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, 1206 char *buf) 1207 { 1208 int nr = (to_sensor_dev_attr(attr))->index; 1209 struct lm93_data *data = lm93_update_device(dev); 1210 int vccp = nr - 6; 1211 long rc, vid; 1212 1213 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) { 1214 vid = LM93_VID_FROM_REG(data->vid[vccp]); 1215 rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid); 1216 } else { 1217 rc = LM93_IN_FROM_REG(nr, data->block7[nr].max); 1218 } 1219 return sprintf(buf, "%ld\n", rc); 1220 } 1221 1222 static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, 1223 const char *buf, size_t count) 1224 { 1225 int nr = (to_sensor_dev_attr(attr))->index; 1226 struct lm93_data *data = dev_get_drvdata(dev); 1227 struct i2c_client *client = data->client; 1228 int vccp = nr - 6; 1229 long vid; 1230 unsigned long val; 1231 int err; 1232 1233 err = kstrtoul(buf, 10, &val); 1234 if (err) 1235 return err; 1236 1237 mutex_lock(&data->update_lock); 1238 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) { 1239 vid = LM93_VID_FROM_REG(data->vid[vccp]); 1240 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) | 1241 LM93_IN_REL_TO_REG(val, 1, vid); 1242 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp), 1243 data->vccp_limits[vccp]); 1244 } else { 1245 data->block7[nr].max = LM93_IN_TO_REG(nr, val); 1246 lm93_write_byte(client, LM93_REG_IN_MAX(nr), 1247 data->block7[nr].max); 1248 } 1249 mutex_unlock(&data->update_lock); 1250 return count; 1251 } 1252 1253 static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 0); 1254 static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 1); 1255 static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 2); 1256 static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 3); 1257 static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 4); 1258 static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 5); 1259 static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 6); 1260 static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 7); 1261 static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 8); 1262 static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 9); 1263 static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 10); 1264 static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 11); 1265 static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 12); 1266 static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 13); 1267 static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 14); 1268 static SENSOR_DEVICE_ATTR_RW(in16_max, in_max, 15); 1269 1270 static ssize_t temp_show(struct device *dev, struct device_attribute *attr, 1271 char *buf) 1272 { 1273 int nr = (to_sensor_dev_attr(attr))->index; 1274 struct lm93_data *data = lm93_update_device(dev); 1275 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block2[nr])); 1276 } 1277 1278 static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); 1279 static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); 1280 static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); 1281 1282 static ssize_t temp_min_show(struct device *dev, 1283 struct device_attribute *attr, char *buf) 1284 { 1285 int nr = (to_sensor_dev_attr(attr))->index; 1286 struct lm93_data *data = lm93_update_device(dev); 1287 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min)); 1288 } 1289 1290 static ssize_t temp_min_store(struct device *dev, 1291 struct device_attribute *attr, const char *buf, 1292 size_t count) 1293 { 1294 int nr = (to_sensor_dev_attr(attr))->index; 1295 struct lm93_data *data = dev_get_drvdata(dev); 1296 struct i2c_client *client = data->client; 1297 long val; 1298 int err; 1299 1300 err = kstrtol(buf, 10, &val); 1301 if (err) 1302 return err; 1303 1304 mutex_lock(&data->update_lock); 1305 data->temp_lim[nr].min = LM93_TEMP_TO_REG(val); 1306 lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min); 1307 mutex_unlock(&data->update_lock); 1308 return count; 1309 } 1310 1311 static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); 1312 static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); 1313 static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); 1314 1315 static ssize_t temp_max_show(struct device *dev, 1316 struct device_attribute *attr, char *buf) 1317 { 1318 int nr = (to_sensor_dev_attr(attr))->index; 1319 struct lm93_data *data = lm93_update_device(dev); 1320 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max)); 1321 } 1322 1323 static ssize_t temp_max_store(struct device *dev, 1324 struct device_attribute *attr, const char *buf, 1325 size_t count) 1326 { 1327 int nr = (to_sensor_dev_attr(attr))->index; 1328 struct lm93_data *data = dev_get_drvdata(dev); 1329 struct i2c_client *client = data->client; 1330 long val; 1331 int err; 1332 1333 err = kstrtol(buf, 10, &val); 1334 if (err) 1335 return err; 1336 1337 mutex_lock(&data->update_lock); 1338 data->temp_lim[nr].max = LM93_TEMP_TO_REG(val); 1339 lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max); 1340 mutex_unlock(&data->update_lock); 1341 return count; 1342 } 1343 1344 static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); 1345 static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); 1346 static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); 1347 1348 static ssize_t temp_auto_base_show(struct device *dev, 1349 struct device_attribute *attr, char *buf) 1350 { 1351 int nr = (to_sensor_dev_attr(attr))->index; 1352 struct lm93_data *data = lm93_update_device(dev); 1353 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr])); 1354 } 1355 1356 static ssize_t temp_auto_base_store(struct device *dev, 1357 struct device_attribute *attr, 1358 const char *buf, size_t count) 1359 { 1360 int nr = (to_sensor_dev_attr(attr))->index; 1361 struct lm93_data *data = dev_get_drvdata(dev); 1362 struct i2c_client *client = data->client; 1363 long val; 1364 int err; 1365 1366 err = kstrtol(buf, 10, &val); 1367 if (err) 1368 return err; 1369 1370 mutex_lock(&data->update_lock); 1371 data->block10.base[nr] = LM93_TEMP_TO_REG(val); 1372 lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]); 1373 mutex_unlock(&data->update_lock); 1374 return count; 1375 } 1376 1377 static SENSOR_DEVICE_ATTR_RW(temp1_auto_base, temp_auto_base, 0); 1378 static SENSOR_DEVICE_ATTR_RW(temp2_auto_base, temp_auto_base, 1); 1379 static SENSOR_DEVICE_ATTR_RW(temp3_auto_base, temp_auto_base, 2); 1380 1381 static ssize_t temp_auto_boost_show(struct device *dev, 1382 struct device_attribute *attr, char *buf) 1383 { 1384 int nr = (to_sensor_dev_attr(attr))->index; 1385 struct lm93_data *data = lm93_update_device(dev); 1386 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr])); 1387 } 1388 1389 static ssize_t temp_auto_boost_store(struct device *dev, 1390 struct device_attribute *attr, 1391 const char *buf, size_t count) 1392 { 1393 int nr = (to_sensor_dev_attr(attr))->index; 1394 struct lm93_data *data = dev_get_drvdata(dev); 1395 struct i2c_client *client = data->client; 1396 long val; 1397 int err; 1398 1399 err = kstrtol(buf, 10, &val); 1400 if (err) 1401 return err; 1402 1403 mutex_lock(&data->update_lock); 1404 data->boost[nr] = LM93_TEMP_TO_REG(val); 1405 lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]); 1406 mutex_unlock(&data->update_lock); 1407 return count; 1408 } 1409 1410 static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost, temp_auto_boost, 0); 1411 static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost, temp_auto_boost, 1); 1412 static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost, temp_auto_boost, 2); 1413 1414 static ssize_t temp_auto_boost_hyst_show(struct device *dev, 1415 struct device_attribute *attr, 1416 char *buf) 1417 { 1418 int nr = (to_sensor_dev_attr(attr))->index; 1419 struct lm93_data *data = lm93_update_device(dev); 1420 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr); 1421 return sprintf(buf, "%d\n", 1422 LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode)); 1423 } 1424 1425 static ssize_t temp_auto_boost_hyst_store(struct device *dev, 1426 struct device_attribute *attr, 1427 const char *buf, size_t count) 1428 { 1429 int nr = (to_sensor_dev_attr(attr))->index; 1430 struct lm93_data *data = dev_get_drvdata(dev); 1431 struct i2c_client *client = data->client; 1432 unsigned long val; 1433 int err; 1434 1435 err = kstrtoul(buf, 10, &val); 1436 if (err) 1437 return err; 1438 1439 mutex_lock(&data->update_lock); 1440 /* force 0.5C/bit mode */ 1441 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1442 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20); 1443 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1444 data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1); 1445 lm93_write_byte(client, LM93_REG_BOOST_HYST(nr), 1446 data->boost_hyst[nr/2]); 1447 mutex_unlock(&data->update_lock); 1448 return count; 1449 } 1450 1451 static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost_hyst, temp_auto_boost_hyst, 0); 1452 static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost_hyst, temp_auto_boost_hyst, 1); 1453 static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost_hyst, temp_auto_boost_hyst, 2); 1454 1455 static ssize_t temp_auto_offset_show(struct device *dev, 1456 struct device_attribute *attr, char *buf) 1457 { 1458 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr); 1459 int nr = s_attr->index; 1460 int ofs = s_attr->nr; 1461 struct lm93_data *data = lm93_update_device(dev); 1462 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr); 1463 return sprintf(buf, "%d\n", 1464 LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs], 1465 nr, mode)); 1466 } 1467 1468 static ssize_t temp_auto_offset_store(struct device *dev, 1469 struct device_attribute *attr, 1470 const char *buf, size_t count) 1471 { 1472 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr); 1473 int nr = s_attr->index; 1474 int ofs = s_attr->nr; 1475 struct lm93_data *data = dev_get_drvdata(dev); 1476 struct i2c_client *client = data->client; 1477 unsigned long val; 1478 int err; 1479 1480 err = kstrtoul(buf, 10, &val); 1481 if (err) 1482 return err; 1483 1484 mutex_lock(&data->update_lock); 1485 /* force 0.5C/bit mode */ 1486 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1487 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20); 1488 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1489 data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG( 1490 data->block10.offset[ofs], val, nr, 1); 1491 lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs), 1492 data->block10.offset[ofs]); 1493 mutex_unlock(&data->update_lock); 1494 return count; 1495 } 1496 1497 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset1, temp_auto_offset, 0, 0); 1498 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset2, temp_auto_offset, 1, 0); 1499 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset3, temp_auto_offset, 2, 0); 1500 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset4, temp_auto_offset, 3, 0); 1501 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset5, temp_auto_offset, 4, 0); 1502 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset6, temp_auto_offset, 5, 0); 1503 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset7, temp_auto_offset, 6, 0); 1504 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset8, temp_auto_offset, 7, 0); 1505 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset9, temp_auto_offset, 8, 0); 1506 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset10, temp_auto_offset, 9, 0); 1507 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset11, temp_auto_offset, 10, 0); 1508 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset12, temp_auto_offset, 11, 0); 1509 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset1, temp_auto_offset, 0, 1); 1510 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset2, temp_auto_offset, 1, 1); 1511 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset3, temp_auto_offset, 2, 1); 1512 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset4, temp_auto_offset, 3, 1); 1513 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset5, temp_auto_offset, 4, 1); 1514 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset6, temp_auto_offset, 5, 1); 1515 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset7, temp_auto_offset, 6, 1); 1516 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset8, temp_auto_offset, 7, 1); 1517 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset9, temp_auto_offset, 8, 1); 1518 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset10, temp_auto_offset, 9, 1); 1519 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset11, temp_auto_offset, 10, 1); 1520 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset12, temp_auto_offset, 11, 1); 1521 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset1, temp_auto_offset, 0, 2); 1522 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset2, temp_auto_offset, 1, 2); 1523 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset3, temp_auto_offset, 2, 2); 1524 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset4, temp_auto_offset, 3, 2); 1525 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset5, temp_auto_offset, 4, 2); 1526 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset6, temp_auto_offset, 5, 2); 1527 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset7, temp_auto_offset, 6, 2); 1528 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset8, temp_auto_offset, 7, 2); 1529 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset9, temp_auto_offset, 8, 2); 1530 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset10, temp_auto_offset, 9, 2); 1531 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset11, temp_auto_offset, 10, 2); 1532 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset12, temp_auto_offset, 11, 2); 1533 1534 static ssize_t temp_auto_pwm_min_show(struct device *dev, 1535 struct device_attribute *attr, 1536 char *buf) 1537 { 1538 int nr = (to_sensor_dev_attr(attr))->index; 1539 u8 reg, ctl4; 1540 struct lm93_data *data = lm93_update_device(dev); 1541 reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f; 1542 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1543 return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ? 1544 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ)); 1545 } 1546 1547 static ssize_t temp_auto_pwm_min_store(struct device *dev, 1548 struct device_attribute *attr, 1549 const char *buf, size_t count) 1550 { 1551 int nr = (to_sensor_dev_attr(attr))->index; 1552 struct lm93_data *data = dev_get_drvdata(dev); 1553 struct i2c_client *client = data->client; 1554 u8 reg, ctl4; 1555 unsigned long val; 1556 int err; 1557 1558 err = kstrtoul(buf, 10, &val); 1559 if (err) 1560 return err; 1561 1562 mutex_lock(&data->update_lock); 1563 reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr)); 1564 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 1565 reg = (reg & 0x0f) | 1566 LM93_PWM_TO_REG(val, (ctl4 & 0x07) ? 1567 LM93_PWM_MAP_LO_FREQ : 1568 LM93_PWM_MAP_HI_FREQ) << 4; 1569 data->auto_pwm_min_hyst[nr/2] = reg; 1570 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg); 1571 mutex_unlock(&data->update_lock); 1572 return count; 1573 } 1574 1575 static SENSOR_DEVICE_ATTR_RW(temp1_auto_pwm_min, temp_auto_pwm_min, 0); 1576 static SENSOR_DEVICE_ATTR_RW(temp2_auto_pwm_min, temp_auto_pwm_min, 1); 1577 static SENSOR_DEVICE_ATTR_RW(temp3_auto_pwm_min, temp_auto_pwm_min, 2); 1578 1579 static ssize_t temp_auto_offset_hyst_show(struct device *dev, 1580 struct device_attribute *attr, 1581 char *buf) 1582 { 1583 int nr = (to_sensor_dev_attr(attr))->index; 1584 struct lm93_data *data = lm93_update_device(dev); 1585 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr); 1586 return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG( 1587 data->auto_pwm_min_hyst[nr / 2], mode)); 1588 } 1589 1590 static ssize_t temp_auto_offset_hyst_store(struct device *dev, 1591 struct device_attribute *attr, 1592 const char *buf, size_t count) 1593 { 1594 int nr = (to_sensor_dev_attr(attr))->index; 1595 struct lm93_data *data = dev_get_drvdata(dev); 1596 struct i2c_client *client = data->client; 1597 u8 reg; 1598 unsigned long val; 1599 int err; 1600 1601 err = kstrtoul(buf, 10, &val); 1602 if (err) 1603 return err; 1604 1605 mutex_lock(&data->update_lock); 1606 /* force 0.5C/bit mode */ 1607 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1608 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20); 1609 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1610 reg = data->auto_pwm_min_hyst[nr/2]; 1611 reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f); 1612 data->auto_pwm_min_hyst[nr/2] = reg; 1613 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg); 1614 mutex_unlock(&data->update_lock); 1615 return count; 1616 } 1617 1618 static SENSOR_DEVICE_ATTR_RW(temp1_auto_offset_hyst, temp_auto_offset_hyst, 0); 1619 static SENSOR_DEVICE_ATTR_RW(temp2_auto_offset_hyst, temp_auto_offset_hyst, 1); 1620 static SENSOR_DEVICE_ATTR_RW(temp3_auto_offset_hyst, temp_auto_offset_hyst, 2); 1621 1622 static ssize_t fan_input_show(struct device *dev, 1623 struct device_attribute *attr, char *buf) 1624 { 1625 struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr); 1626 int nr = s_attr->index; 1627 struct lm93_data *data = lm93_update_device(dev); 1628 1629 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr])); 1630 } 1631 1632 static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0); 1633 static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1); 1634 static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2); 1635 static SENSOR_DEVICE_ATTR_RO(fan4_input, fan_input, 3); 1636 1637 static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, 1638 char *buf) 1639 { 1640 int nr = (to_sensor_dev_attr(attr))->index; 1641 struct lm93_data *data = lm93_update_device(dev); 1642 1643 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr])); 1644 } 1645 1646 static ssize_t fan_min_store(struct device *dev, 1647 struct device_attribute *attr, const char *buf, 1648 size_t count) 1649 { 1650 int nr = (to_sensor_dev_attr(attr))->index; 1651 struct lm93_data *data = dev_get_drvdata(dev); 1652 struct i2c_client *client = data->client; 1653 unsigned long val; 1654 int err; 1655 1656 err = kstrtoul(buf, 10, &val); 1657 if (err) 1658 return err; 1659 1660 mutex_lock(&data->update_lock); 1661 data->block8[nr] = LM93_FAN_TO_REG(val); 1662 lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]); 1663 mutex_unlock(&data->update_lock); 1664 return count; 1665 } 1666 1667 static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); 1668 static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); 1669 static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); 1670 static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3); 1671 1672 /* 1673 * some tedious bit-twiddling here to deal with the register format: 1674 * 1675 * data->sf_tach_to_pwm: (tach to pwm mapping bits) 1676 * 1677 * bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 1678 * T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1 1679 * 1680 * data->sfc2: (enable bits) 1681 * 1682 * bit | 3 | 2 | 1 | 0 1683 * T4 T3 T2 T1 1684 */ 1685 1686 static ssize_t fan_smart_tach_show(struct device *dev, 1687 struct device_attribute *attr, char *buf) 1688 { 1689 int nr = (to_sensor_dev_attr(attr))->index; 1690 struct lm93_data *data = lm93_update_device(dev); 1691 long rc = 0; 1692 int mapping; 1693 1694 /* extract the relevant mapping */ 1695 mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03; 1696 1697 /* if there's a mapping and it's enabled */ 1698 if (mapping && ((data->sfc2 >> nr) & 0x01)) 1699 rc = mapping; 1700 return sprintf(buf, "%ld\n", rc); 1701 } 1702 1703 /* 1704 * helper function - must grab data->update_lock before calling 1705 * fan is 0-3, indicating fan1-fan4 1706 */ 1707 static void lm93_write_fan_smart_tach(struct i2c_client *client, 1708 struct lm93_data *data, int fan, long value) 1709 { 1710 /* insert the new mapping and write it out */ 1711 data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM); 1712 data->sf_tach_to_pwm &= ~(0x3 << fan * 2); 1713 data->sf_tach_to_pwm |= value << fan * 2; 1714 lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm); 1715 1716 /* insert the enable bit and write it out */ 1717 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1718 if (value) 1719 data->sfc2 |= 1 << fan; 1720 else 1721 data->sfc2 &= ~(1 << fan); 1722 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1723 } 1724 1725 static ssize_t fan_smart_tach_store(struct device *dev, 1726 struct device_attribute *attr, 1727 const char *buf, size_t count) 1728 { 1729 int nr = (to_sensor_dev_attr(attr))->index; 1730 struct lm93_data *data = dev_get_drvdata(dev); 1731 struct i2c_client *client = data->client; 1732 unsigned long val; 1733 int err; 1734 1735 err = kstrtoul(buf, 10, &val); 1736 if (err) 1737 return err; 1738 1739 mutex_lock(&data->update_lock); 1740 /* sanity test, ignore the write otherwise */ 1741 if (val <= 2) { 1742 /* can't enable if pwm freq is 22.5KHz */ 1743 if (val) { 1744 u8 ctl4 = lm93_read_byte(client, 1745 LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4)); 1746 if ((ctl4 & 0x07) == 0) 1747 val = 0; 1748 } 1749 lm93_write_fan_smart_tach(client, data, nr, val); 1750 } 1751 mutex_unlock(&data->update_lock); 1752 return count; 1753 } 1754 1755 static SENSOR_DEVICE_ATTR_RW(fan1_smart_tach, fan_smart_tach, 0); 1756 static SENSOR_DEVICE_ATTR_RW(fan2_smart_tach, fan_smart_tach, 1); 1757 static SENSOR_DEVICE_ATTR_RW(fan3_smart_tach, fan_smart_tach, 2); 1758 static SENSOR_DEVICE_ATTR_RW(fan4_smart_tach, fan_smart_tach, 3); 1759 1760 static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, 1761 char *buf) 1762 { 1763 int nr = (to_sensor_dev_attr(attr))->index; 1764 struct lm93_data *data = lm93_update_device(dev); 1765 u8 ctl2, ctl4; 1766 long rc; 1767 1768 ctl2 = data->block9[nr][LM93_PWM_CTL2]; 1769 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1770 if (ctl2 & 0x01) /* show user commanded value if enabled */ 1771 rc = data->pwm_override[nr]; 1772 else /* show present h/w value if manual pwm disabled */ 1773 rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ? 1774 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ); 1775 return sprintf(buf, "%ld\n", rc); 1776 } 1777 1778 static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, 1779 const char *buf, size_t count) 1780 { 1781 int nr = (to_sensor_dev_attr(attr))->index; 1782 struct lm93_data *data = dev_get_drvdata(dev); 1783 struct i2c_client *client = data->client; 1784 u8 ctl2, ctl4; 1785 unsigned long val; 1786 int err; 1787 1788 err = kstrtoul(buf, 10, &val); 1789 if (err) 1790 return err; 1791 1792 mutex_lock(&data->update_lock); 1793 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2)); 1794 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 1795 ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ? 1796 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4; 1797 /* save user commanded value */ 1798 data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4, 1799 (ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ : 1800 LM93_PWM_MAP_HI_FREQ); 1801 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2); 1802 mutex_unlock(&data->update_lock); 1803 return count; 1804 } 1805 1806 static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); 1807 static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); 1808 1809 static ssize_t pwm_enable_show(struct device *dev, 1810 struct device_attribute *attr, char *buf) 1811 { 1812 int nr = (to_sensor_dev_attr(attr))->index; 1813 struct lm93_data *data = lm93_update_device(dev); 1814 u8 ctl2; 1815 long rc; 1816 1817 ctl2 = data->block9[nr][LM93_PWM_CTL2]; 1818 if (ctl2 & 0x01) /* manual override enabled ? */ 1819 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1; 1820 else 1821 rc = 2; 1822 return sprintf(buf, "%ld\n", rc); 1823 } 1824 1825 static ssize_t pwm_enable_store(struct device *dev, 1826 struct device_attribute *attr, 1827 const char *buf, size_t count) 1828 { 1829 int nr = (to_sensor_dev_attr(attr))->index; 1830 struct lm93_data *data = dev_get_drvdata(dev); 1831 struct i2c_client *client = data->client; 1832 u8 ctl2; 1833 unsigned long val; 1834 int err; 1835 1836 err = kstrtoul(buf, 10, &val); 1837 if (err) 1838 return err; 1839 1840 mutex_lock(&data->update_lock); 1841 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2)); 1842 1843 switch (val) { 1844 case 0: 1845 ctl2 |= 0xF1; /* enable manual override, set PWM to max */ 1846 break; 1847 case 1: 1848 ctl2 |= 0x01; /* enable manual override */ 1849 break; 1850 case 2: 1851 ctl2 &= ~0x01; /* disable manual override */ 1852 break; 1853 default: 1854 mutex_unlock(&data->update_lock); 1855 return -EINVAL; 1856 } 1857 1858 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2); 1859 mutex_unlock(&data->update_lock); 1860 return count; 1861 } 1862 1863 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0); 1864 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1); 1865 1866 static ssize_t pwm_freq_show(struct device *dev, 1867 struct device_attribute *attr, char *buf) 1868 { 1869 int nr = (to_sensor_dev_attr(attr))->index; 1870 struct lm93_data *data = lm93_update_device(dev); 1871 u8 ctl4; 1872 1873 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1874 return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4)); 1875 } 1876 1877 /* 1878 * helper function - must grab data->update_lock before calling 1879 * pwm is 0-1, indicating pwm1-pwm2 1880 * this disables smart tach for all tach channels bound to the given pwm 1881 */ 1882 static void lm93_disable_fan_smart_tach(struct i2c_client *client, 1883 struct lm93_data *data, int pwm) 1884 { 1885 int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM); 1886 int mask; 1887 1888 /* collapse the mapping into a mask of enable bits */ 1889 mapping = (mapping >> pwm) & 0x55; 1890 mask = mapping & 0x01; 1891 mask |= (mapping & 0x04) >> 1; 1892 mask |= (mapping & 0x10) >> 2; 1893 mask |= (mapping & 0x40) >> 3; 1894 1895 /* disable smart tach according to the mask */ 1896 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1897 data->sfc2 &= ~mask; 1898 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1899 } 1900 1901 static ssize_t pwm_freq_store(struct device *dev, 1902 struct device_attribute *attr, const char *buf, 1903 size_t count) 1904 { 1905 int nr = (to_sensor_dev_attr(attr))->index; 1906 struct lm93_data *data = dev_get_drvdata(dev); 1907 struct i2c_client *client = data->client; 1908 u8 ctl4; 1909 unsigned long val; 1910 int err; 1911 1912 err = kstrtoul(buf, 10, &val); 1913 if (err) 1914 return err; 1915 1916 mutex_lock(&data->update_lock); 1917 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 1918 ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val); 1919 data->block9[nr][LM93_PWM_CTL4] = ctl4; 1920 /* ctl4 == 0 -> 22.5KHz -> disable smart tach */ 1921 if (!ctl4) 1922 lm93_disable_fan_smart_tach(client, data, nr); 1923 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4); 1924 mutex_unlock(&data->update_lock); 1925 return count; 1926 } 1927 1928 static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0); 1929 static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1); 1930 1931 static ssize_t pwm_auto_channels_show(struct device *dev, 1932 struct device_attribute *attr, 1933 char *buf) 1934 { 1935 int nr = (to_sensor_dev_attr(attr))->index; 1936 struct lm93_data *data = lm93_update_device(dev); 1937 return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]); 1938 } 1939 1940 static ssize_t pwm_auto_channels_store(struct device *dev, 1941 struct device_attribute *attr, 1942 const char *buf, size_t count) 1943 { 1944 int nr = (to_sensor_dev_attr(attr))->index; 1945 struct lm93_data *data = dev_get_drvdata(dev); 1946 struct i2c_client *client = data->client; 1947 unsigned long val; 1948 int err; 1949 1950 err = kstrtoul(buf, 10, &val); 1951 if (err) 1952 return err; 1953 1954 mutex_lock(&data->update_lock); 1955 data->block9[nr][LM93_PWM_CTL1] = clamp_val(val, 0, 255); 1956 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1), 1957 data->block9[nr][LM93_PWM_CTL1]); 1958 mutex_unlock(&data->update_lock); 1959 return count; 1960 } 1961 1962 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels, pwm_auto_channels, 0); 1963 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels, pwm_auto_channels, 1); 1964 1965 static ssize_t pwm_auto_spinup_min_show(struct device *dev, 1966 struct device_attribute *attr, 1967 char *buf) 1968 { 1969 int nr = (to_sensor_dev_attr(attr))->index; 1970 struct lm93_data *data = lm93_update_device(dev); 1971 u8 ctl3, ctl4; 1972 1973 ctl3 = data->block9[nr][LM93_PWM_CTL3]; 1974 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1975 return sprintf(buf, "%d\n", 1976 LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ? 1977 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ)); 1978 } 1979 1980 static ssize_t pwm_auto_spinup_min_store(struct device *dev, 1981 struct device_attribute *attr, 1982 const char *buf, size_t count) 1983 { 1984 int nr = (to_sensor_dev_attr(attr))->index; 1985 struct lm93_data *data = dev_get_drvdata(dev); 1986 struct i2c_client *client = data->client; 1987 u8 ctl3, ctl4; 1988 unsigned long val; 1989 int err; 1990 1991 err = kstrtoul(buf, 10, &val); 1992 if (err) 1993 return err; 1994 1995 mutex_lock(&data->update_lock); 1996 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3)); 1997 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 1998 ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ? 1999 LM93_PWM_MAP_LO_FREQ : 2000 LM93_PWM_MAP_HI_FREQ); 2001 data->block9[nr][LM93_PWM_CTL3] = ctl3; 2002 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3); 2003 mutex_unlock(&data->update_lock); 2004 return count; 2005 } 2006 2007 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_min, pwm_auto_spinup_min, 0); 2008 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_min, pwm_auto_spinup_min, 1); 2009 2010 static ssize_t pwm_auto_spinup_time_show(struct device *dev, 2011 struct device_attribute *attr, 2012 char *buf) 2013 { 2014 int nr = (to_sensor_dev_attr(attr))->index; 2015 struct lm93_data *data = lm93_update_device(dev); 2016 return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG( 2017 data->block9[nr][LM93_PWM_CTL3])); 2018 } 2019 2020 static ssize_t pwm_auto_spinup_time_store(struct device *dev, 2021 struct device_attribute *attr, 2022 const char *buf, size_t count) 2023 { 2024 int nr = (to_sensor_dev_attr(attr))->index; 2025 struct lm93_data *data = dev_get_drvdata(dev); 2026 struct i2c_client *client = data->client; 2027 u8 ctl3; 2028 unsigned long val; 2029 int err; 2030 2031 err = kstrtoul(buf, 10, &val); 2032 if (err) 2033 return err; 2034 2035 mutex_lock(&data->update_lock); 2036 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3)); 2037 ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0); 2038 data->block9[nr][LM93_PWM_CTL3] = ctl3; 2039 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3); 2040 mutex_unlock(&data->update_lock); 2041 return count; 2042 } 2043 2044 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_time, pwm_auto_spinup_time, 0); 2045 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_time, pwm_auto_spinup_time, 1); 2046 2047 static ssize_t pwm_auto_prochot_ramp_show(struct device *dev, 2048 struct device_attribute *attr, char *buf) 2049 { 2050 struct lm93_data *data = lm93_update_device(dev); 2051 return sprintf(buf, "%d\n", 2052 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f)); 2053 } 2054 2055 static ssize_t pwm_auto_prochot_ramp_store(struct device *dev, 2056 struct device_attribute *attr, 2057 const char *buf, size_t count) 2058 { 2059 struct lm93_data *data = dev_get_drvdata(dev); 2060 struct i2c_client *client = data->client; 2061 u8 ramp; 2062 unsigned long val; 2063 int err; 2064 2065 err = kstrtoul(buf, 10, &val); 2066 if (err) 2067 return err; 2068 2069 mutex_lock(&data->update_lock); 2070 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL); 2071 ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0); 2072 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp); 2073 mutex_unlock(&data->update_lock); 2074 return count; 2075 } 2076 2077 static DEVICE_ATTR_RW(pwm_auto_prochot_ramp); 2078 2079 static ssize_t pwm_auto_vrdhot_ramp_show(struct device *dev, 2080 struct device_attribute *attr, char *buf) 2081 { 2082 struct lm93_data *data = lm93_update_device(dev); 2083 return sprintf(buf, "%d\n", 2084 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f)); 2085 } 2086 2087 static ssize_t pwm_auto_vrdhot_ramp_store(struct device *dev, 2088 struct device_attribute *attr, 2089 const char *buf, size_t count) 2090 { 2091 struct lm93_data *data = dev_get_drvdata(dev); 2092 struct i2c_client *client = data->client; 2093 u8 ramp; 2094 unsigned long val; 2095 int err; 2096 2097 err = kstrtoul(buf, 10, &val); 2098 if (err) 2099 return err; 2100 2101 mutex_lock(&data->update_lock); 2102 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL); 2103 ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f); 2104 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp); 2105 mutex_unlock(&data->update_lock); 2106 return 0; 2107 } 2108 2109 static DEVICE_ATTR_RW(pwm_auto_vrdhot_ramp); 2110 2111 static ssize_t vid_show(struct device *dev, struct device_attribute *attr, 2112 char *buf) 2113 { 2114 int nr = (to_sensor_dev_attr(attr))->index; 2115 struct lm93_data *data = lm93_update_device(dev); 2116 return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr])); 2117 } 2118 2119 static SENSOR_DEVICE_ATTR_RO(cpu0_vid, vid, 0); 2120 static SENSOR_DEVICE_ATTR_RO(cpu1_vid, vid, 1); 2121 2122 static ssize_t prochot_show(struct device *dev, struct device_attribute *attr, 2123 char *buf) 2124 { 2125 int nr = (to_sensor_dev_attr(attr))->index; 2126 struct lm93_data *data = lm93_update_device(dev); 2127 return sprintf(buf, "%d\n", data->block4[nr].cur); 2128 } 2129 2130 static SENSOR_DEVICE_ATTR_RO(prochot1, prochot, 0); 2131 static SENSOR_DEVICE_ATTR_RO(prochot2, prochot, 1); 2132 2133 static ssize_t prochot_avg_show(struct device *dev, 2134 struct device_attribute *attr, char *buf) 2135 { 2136 int nr = (to_sensor_dev_attr(attr))->index; 2137 struct lm93_data *data = lm93_update_device(dev); 2138 return sprintf(buf, "%d\n", data->block4[nr].avg); 2139 } 2140 2141 static SENSOR_DEVICE_ATTR_RO(prochot1_avg, prochot_avg, 0); 2142 static SENSOR_DEVICE_ATTR_RO(prochot2_avg, prochot_avg, 1); 2143 2144 static ssize_t prochot_max_show(struct device *dev, 2145 struct device_attribute *attr, char *buf) 2146 { 2147 int nr = (to_sensor_dev_attr(attr))->index; 2148 struct lm93_data *data = lm93_update_device(dev); 2149 return sprintf(buf, "%d\n", data->prochot_max[nr]); 2150 } 2151 2152 static ssize_t prochot_max_store(struct device *dev, 2153 struct device_attribute *attr, 2154 const char *buf, size_t count) 2155 { 2156 int nr = (to_sensor_dev_attr(attr))->index; 2157 struct lm93_data *data = dev_get_drvdata(dev); 2158 struct i2c_client *client = data->client; 2159 unsigned long val; 2160 int err; 2161 2162 err = kstrtoul(buf, 10, &val); 2163 if (err) 2164 return err; 2165 2166 mutex_lock(&data->update_lock); 2167 data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val); 2168 lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr), 2169 data->prochot_max[nr]); 2170 mutex_unlock(&data->update_lock); 2171 return count; 2172 } 2173 2174 static SENSOR_DEVICE_ATTR_RW(prochot1_max, prochot_max, 0); 2175 static SENSOR_DEVICE_ATTR_RW(prochot2_max, prochot_max, 1); 2176 2177 static const u8 prochot_override_mask[] = { 0x80, 0x40 }; 2178 2179 static ssize_t prochot_override_show(struct device *dev, 2180 struct device_attribute *attr, char *buf) 2181 { 2182 int nr = (to_sensor_dev_attr(attr))->index; 2183 struct lm93_data *data = lm93_update_device(dev); 2184 return sprintf(buf, "%d\n", 2185 (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0); 2186 } 2187 2188 static ssize_t prochot_override_store(struct device *dev, 2189 struct device_attribute *attr, 2190 const char *buf, size_t count) 2191 { 2192 int nr = (to_sensor_dev_attr(attr))->index; 2193 struct lm93_data *data = dev_get_drvdata(dev); 2194 struct i2c_client *client = data->client; 2195 unsigned long val; 2196 int err; 2197 2198 err = kstrtoul(buf, 10, &val); 2199 if (err) 2200 return err; 2201 2202 mutex_lock(&data->update_lock); 2203 if (val) 2204 data->prochot_override |= prochot_override_mask[nr]; 2205 else 2206 data->prochot_override &= (~prochot_override_mask[nr]); 2207 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE, 2208 data->prochot_override); 2209 mutex_unlock(&data->update_lock); 2210 return count; 2211 } 2212 2213 static SENSOR_DEVICE_ATTR_RW(prochot1_override, prochot_override, 0); 2214 static SENSOR_DEVICE_ATTR_RW(prochot2_override, prochot_override, 1); 2215 2216 static ssize_t prochot_interval_show(struct device *dev, 2217 struct device_attribute *attr, char *buf) 2218 { 2219 int nr = (to_sensor_dev_attr(attr))->index; 2220 struct lm93_data *data = lm93_update_device(dev); 2221 u8 tmp; 2222 if (nr == 1) 2223 tmp = (data->prochot_interval & 0xf0) >> 4; 2224 else 2225 tmp = data->prochot_interval & 0x0f; 2226 return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp)); 2227 } 2228 2229 static ssize_t prochot_interval_store(struct device *dev, 2230 struct device_attribute *attr, 2231 const char *buf, size_t count) 2232 { 2233 int nr = (to_sensor_dev_attr(attr))->index; 2234 struct lm93_data *data = dev_get_drvdata(dev); 2235 struct i2c_client *client = data->client; 2236 u8 tmp; 2237 unsigned long val; 2238 int err; 2239 2240 err = kstrtoul(buf, 10, &val); 2241 if (err) 2242 return err; 2243 2244 mutex_lock(&data->update_lock); 2245 tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL); 2246 if (nr == 1) 2247 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4); 2248 else 2249 tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val); 2250 data->prochot_interval = tmp; 2251 lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp); 2252 mutex_unlock(&data->update_lock); 2253 return count; 2254 } 2255 2256 static SENSOR_DEVICE_ATTR_RW(prochot1_interval, prochot_interval, 0); 2257 static SENSOR_DEVICE_ATTR_RW(prochot2_interval, prochot_interval, 1); 2258 2259 static ssize_t prochot_override_duty_cycle_show(struct device *dev, 2260 struct device_attribute *attr, 2261 char *buf) 2262 { 2263 struct lm93_data *data = lm93_update_device(dev); 2264 return sprintf(buf, "%d\n", data->prochot_override & 0x0f); 2265 } 2266 2267 static ssize_t prochot_override_duty_cycle_store(struct device *dev, 2268 struct device_attribute *attr, 2269 const char *buf, size_t count) 2270 { 2271 struct lm93_data *data = dev_get_drvdata(dev); 2272 struct i2c_client *client = data->client; 2273 unsigned long val; 2274 int err; 2275 2276 err = kstrtoul(buf, 10, &val); 2277 if (err) 2278 return err; 2279 2280 mutex_lock(&data->update_lock); 2281 data->prochot_override = (data->prochot_override & 0xf0) | 2282 clamp_val(val, 0, 15); 2283 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE, 2284 data->prochot_override); 2285 mutex_unlock(&data->update_lock); 2286 return count; 2287 } 2288 2289 static DEVICE_ATTR_RW(prochot_override_duty_cycle); 2290 2291 static ssize_t prochot_short_show(struct device *dev, 2292 struct device_attribute *attr, char *buf) 2293 { 2294 struct lm93_data *data = lm93_update_device(dev); 2295 return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0); 2296 } 2297 2298 static ssize_t prochot_short_store(struct device *dev, 2299 struct device_attribute *attr, 2300 const char *buf, size_t count) 2301 { 2302 struct lm93_data *data = dev_get_drvdata(dev); 2303 struct i2c_client *client = data->client; 2304 unsigned long val; 2305 int err; 2306 2307 err = kstrtoul(buf, 10, &val); 2308 if (err) 2309 return err; 2310 2311 mutex_lock(&data->update_lock); 2312 if (val) 2313 data->config |= 0x10; 2314 else 2315 data->config &= ~0x10; 2316 lm93_write_byte(client, LM93_REG_CONFIG, data->config); 2317 mutex_unlock(&data->update_lock); 2318 return count; 2319 } 2320 2321 static DEVICE_ATTR_RW(prochot_short); 2322 2323 static ssize_t vrdhot_show(struct device *dev, struct device_attribute *attr, 2324 char *buf) 2325 { 2326 int nr = (to_sensor_dev_attr(attr))->index; 2327 struct lm93_data *data = lm93_update_device(dev); 2328 return sprintf(buf, "%d\n", 2329 data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0); 2330 } 2331 2332 static SENSOR_DEVICE_ATTR_RO(vrdhot1, vrdhot, 0); 2333 static SENSOR_DEVICE_ATTR_RO(vrdhot2, vrdhot, 1); 2334 2335 static ssize_t gpio_show(struct device *dev, struct device_attribute *attr, 2336 char *buf) 2337 { 2338 struct lm93_data *data = lm93_update_device(dev); 2339 return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi)); 2340 } 2341 2342 static DEVICE_ATTR_RO(gpio); 2343 2344 static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, 2345 char *buf) 2346 { 2347 struct lm93_data *data = lm93_update_device(dev); 2348 return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1)); 2349 } 2350 2351 static DEVICE_ATTR_RO(alarms); 2352 2353 static struct attribute *lm93_attrs[] = { 2354 &sensor_dev_attr_in1_input.dev_attr.attr, 2355 &sensor_dev_attr_in2_input.dev_attr.attr, 2356 &sensor_dev_attr_in3_input.dev_attr.attr, 2357 &sensor_dev_attr_in4_input.dev_attr.attr, 2358 &sensor_dev_attr_in5_input.dev_attr.attr, 2359 &sensor_dev_attr_in6_input.dev_attr.attr, 2360 &sensor_dev_attr_in7_input.dev_attr.attr, 2361 &sensor_dev_attr_in8_input.dev_attr.attr, 2362 &sensor_dev_attr_in9_input.dev_attr.attr, 2363 &sensor_dev_attr_in10_input.dev_attr.attr, 2364 &sensor_dev_attr_in11_input.dev_attr.attr, 2365 &sensor_dev_attr_in12_input.dev_attr.attr, 2366 &sensor_dev_attr_in13_input.dev_attr.attr, 2367 &sensor_dev_attr_in14_input.dev_attr.attr, 2368 &sensor_dev_attr_in15_input.dev_attr.attr, 2369 &sensor_dev_attr_in16_input.dev_attr.attr, 2370 &sensor_dev_attr_in1_min.dev_attr.attr, 2371 &sensor_dev_attr_in2_min.dev_attr.attr, 2372 &sensor_dev_attr_in3_min.dev_attr.attr, 2373 &sensor_dev_attr_in4_min.dev_attr.attr, 2374 &sensor_dev_attr_in5_min.dev_attr.attr, 2375 &sensor_dev_attr_in6_min.dev_attr.attr, 2376 &sensor_dev_attr_in7_min.dev_attr.attr, 2377 &sensor_dev_attr_in8_min.dev_attr.attr, 2378 &sensor_dev_attr_in9_min.dev_attr.attr, 2379 &sensor_dev_attr_in10_min.dev_attr.attr, 2380 &sensor_dev_attr_in11_min.dev_attr.attr, 2381 &sensor_dev_attr_in12_min.dev_attr.attr, 2382 &sensor_dev_attr_in13_min.dev_attr.attr, 2383 &sensor_dev_attr_in14_min.dev_attr.attr, 2384 &sensor_dev_attr_in15_min.dev_attr.attr, 2385 &sensor_dev_attr_in16_min.dev_attr.attr, 2386 &sensor_dev_attr_in1_max.dev_attr.attr, 2387 &sensor_dev_attr_in2_max.dev_attr.attr, 2388 &sensor_dev_attr_in3_max.dev_attr.attr, 2389 &sensor_dev_attr_in4_max.dev_attr.attr, 2390 &sensor_dev_attr_in5_max.dev_attr.attr, 2391 &sensor_dev_attr_in6_max.dev_attr.attr, 2392 &sensor_dev_attr_in7_max.dev_attr.attr, 2393 &sensor_dev_attr_in8_max.dev_attr.attr, 2394 &sensor_dev_attr_in9_max.dev_attr.attr, 2395 &sensor_dev_attr_in10_max.dev_attr.attr, 2396 &sensor_dev_attr_in11_max.dev_attr.attr, 2397 &sensor_dev_attr_in12_max.dev_attr.attr, 2398 &sensor_dev_attr_in13_max.dev_attr.attr, 2399 &sensor_dev_attr_in14_max.dev_attr.attr, 2400 &sensor_dev_attr_in15_max.dev_attr.attr, 2401 &sensor_dev_attr_in16_max.dev_attr.attr, 2402 &sensor_dev_attr_temp1_input.dev_attr.attr, 2403 &sensor_dev_attr_temp2_input.dev_attr.attr, 2404 &sensor_dev_attr_temp3_input.dev_attr.attr, 2405 &sensor_dev_attr_temp1_min.dev_attr.attr, 2406 &sensor_dev_attr_temp2_min.dev_attr.attr, 2407 &sensor_dev_attr_temp3_min.dev_attr.attr, 2408 &sensor_dev_attr_temp1_max.dev_attr.attr, 2409 &sensor_dev_attr_temp2_max.dev_attr.attr, 2410 &sensor_dev_attr_temp3_max.dev_attr.attr, 2411 &sensor_dev_attr_temp1_auto_base.dev_attr.attr, 2412 &sensor_dev_attr_temp2_auto_base.dev_attr.attr, 2413 &sensor_dev_attr_temp3_auto_base.dev_attr.attr, 2414 &sensor_dev_attr_temp1_auto_boost.dev_attr.attr, 2415 &sensor_dev_attr_temp2_auto_boost.dev_attr.attr, 2416 &sensor_dev_attr_temp3_auto_boost.dev_attr.attr, 2417 &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr, 2418 &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr, 2419 &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr, 2420 &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr, 2421 &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr, 2422 &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr, 2423 &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr, 2424 &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr, 2425 &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr, 2426 &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr, 2427 &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr, 2428 &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr, 2429 &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr, 2430 &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr, 2431 &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr, 2432 &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr, 2433 &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr, 2434 &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr, 2435 &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr, 2436 &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr, 2437 &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr, 2438 &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr, 2439 &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr, 2440 &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr, 2441 &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr, 2442 &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr, 2443 &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr, 2444 &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr, 2445 &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr, 2446 &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr, 2447 &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr, 2448 &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr, 2449 &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr, 2450 &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr, 2451 &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr, 2452 &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr, 2453 &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr, 2454 &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr, 2455 &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr, 2456 &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr, 2457 &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr, 2458 &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr, 2459 &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr, 2460 &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr, 2461 &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr, 2462 &sensor_dev_attr_fan1_input.dev_attr.attr, 2463 &sensor_dev_attr_fan2_input.dev_attr.attr, 2464 &sensor_dev_attr_fan3_input.dev_attr.attr, 2465 &sensor_dev_attr_fan4_input.dev_attr.attr, 2466 &sensor_dev_attr_fan1_min.dev_attr.attr, 2467 &sensor_dev_attr_fan2_min.dev_attr.attr, 2468 &sensor_dev_attr_fan3_min.dev_attr.attr, 2469 &sensor_dev_attr_fan4_min.dev_attr.attr, 2470 &sensor_dev_attr_fan1_smart_tach.dev_attr.attr, 2471 &sensor_dev_attr_fan2_smart_tach.dev_attr.attr, 2472 &sensor_dev_attr_fan3_smart_tach.dev_attr.attr, 2473 &sensor_dev_attr_fan4_smart_tach.dev_attr.attr, 2474 &sensor_dev_attr_pwm1.dev_attr.attr, 2475 &sensor_dev_attr_pwm2.dev_attr.attr, 2476 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 2477 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 2478 &sensor_dev_attr_pwm1_freq.dev_attr.attr, 2479 &sensor_dev_attr_pwm2_freq.dev_attr.attr, 2480 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, 2481 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, 2482 &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr, 2483 &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr, 2484 &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr, 2485 &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr, 2486 &dev_attr_pwm_auto_prochot_ramp.attr, 2487 &dev_attr_pwm_auto_vrdhot_ramp.attr, 2488 &sensor_dev_attr_cpu0_vid.dev_attr.attr, 2489 &sensor_dev_attr_cpu1_vid.dev_attr.attr, 2490 &sensor_dev_attr_prochot1.dev_attr.attr, 2491 &sensor_dev_attr_prochot2.dev_attr.attr, 2492 &sensor_dev_attr_prochot1_avg.dev_attr.attr, 2493 &sensor_dev_attr_prochot2_avg.dev_attr.attr, 2494 &sensor_dev_attr_prochot1_max.dev_attr.attr, 2495 &sensor_dev_attr_prochot2_max.dev_attr.attr, 2496 &sensor_dev_attr_prochot1_override.dev_attr.attr, 2497 &sensor_dev_attr_prochot2_override.dev_attr.attr, 2498 &sensor_dev_attr_prochot1_interval.dev_attr.attr, 2499 &sensor_dev_attr_prochot2_interval.dev_attr.attr, 2500 &dev_attr_prochot_override_duty_cycle.attr, 2501 &dev_attr_prochot_short.attr, 2502 &sensor_dev_attr_vrdhot1.dev_attr.attr, 2503 &sensor_dev_attr_vrdhot2.dev_attr.attr, 2504 &dev_attr_gpio.attr, 2505 &dev_attr_alarms.attr, 2506 NULL 2507 }; 2508 2509 ATTRIBUTE_GROUPS(lm93); 2510 2511 static void lm93_init_client(struct i2c_client *client) 2512 { 2513 int i; 2514 u8 reg; 2515 2516 /* configure VID pin input thresholds */ 2517 reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL); 2518 lm93_write_byte(client, LM93_REG_GPI_VID_CTL, 2519 reg | (vid_agtl ? 0x03 : 0x00)); 2520 2521 if (init) { 2522 /* enable #ALERT pin */ 2523 reg = lm93_read_byte(client, LM93_REG_CONFIG); 2524 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08); 2525 2526 /* enable ASF mode for BMC status registers */ 2527 reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL); 2528 lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02); 2529 2530 /* set sleep state to S0 */ 2531 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0); 2532 2533 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */ 2534 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK); 2535 reg &= ~0x03; 2536 reg &= ~(vccp_limit_type[0] ? 0x10 : 0); 2537 reg &= ~(vccp_limit_type[1] ? 0x20 : 0); 2538 lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg); 2539 } 2540 2541 /* start monitoring */ 2542 reg = lm93_read_byte(client, LM93_REG_CONFIG); 2543 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01); 2544 2545 /* spin until ready */ 2546 for (i = 0; i < 20; i++) { 2547 msleep(10); 2548 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80) 2549 return; 2550 } 2551 2552 dev_warn(&client->dev, 2553 "timed out waiting for sensor chip to signal ready!\n"); 2554 } 2555 2556 /* Return 0 if detection is successful, -ENODEV otherwise */ 2557 static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info) 2558 { 2559 struct i2c_adapter *adapter = client->adapter; 2560 int mfr, ver; 2561 const char *name; 2562 2563 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN)) 2564 return -ENODEV; 2565 2566 /* detection */ 2567 mfr = lm93_read_byte(client, LM93_REG_MFR_ID); 2568 if (mfr != 0x01) { 2569 dev_dbg(&adapter->dev, 2570 "detect failed, bad manufacturer id 0x%02x!\n", mfr); 2571 return -ENODEV; 2572 } 2573 2574 ver = lm93_read_byte(client, LM93_REG_VER); 2575 switch (ver) { 2576 case LM93_MFR_ID: 2577 case LM93_MFR_ID_PROTOTYPE: 2578 name = "lm93"; 2579 break; 2580 case LM94_MFR_ID_2: 2581 case LM94_MFR_ID: 2582 case LM94_MFR_ID_PROTOTYPE: 2583 name = "lm94"; 2584 break; 2585 default: 2586 dev_dbg(&adapter->dev, 2587 "detect failed, bad version id 0x%02x!\n", ver); 2588 return -ENODEV; 2589 } 2590 2591 strlcpy(info->type, name, I2C_NAME_SIZE); 2592 dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n", 2593 client->name, i2c_adapter_id(client->adapter), 2594 client->addr); 2595 2596 return 0; 2597 } 2598 2599 static int lm93_probe(struct i2c_client *client, 2600 const struct i2c_device_id *id) 2601 { 2602 struct device *dev = &client->dev; 2603 struct lm93_data *data; 2604 struct device *hwmon_dev; 2605 int func; 2606 void (*update)(struct lm93_data *, struct i2c_client *); 2607 2608 /* choose update routine based on bus capabilities */ 2609 func = i2c_get_functionality(client->adapter); 2610 if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) && 2611 (!disable_block)) { 2612 dev_dbg(dev, "using SMBus block data transactions\n"); 2613 update = lm93_update_client_full; 2614 } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) { 2615 dev_dbg(dev, "disabled SMBus block data transactions\n"); 2616 update = lm93_update_client_min; 2617 } else { 2618 dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n"); 2619 return -ENODEV; 2620 } 2621 2622 data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL); 2623 if (!data) 2624 return -ENOMEM; 2625 2626 /* housekeeping */ 2627 data->client = client; 2628 data->update = update; 2629 mutex_init(&data->update_lock); 2630 2631 /* initialize the chip */ 2632 lm93_init_client(client); 2633 2634 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, 2635 data, 2636 lm93_groups); 2637 return PTR_ERR_OR_ZERO(hwmon_dev); 2638 } 2639 2640 static const struct i2c_device_id lm93_id[] = { 2641 { "lm93", 0 }, 2642 { "lm94", 0 }, 2643 { } 2644 }; 2645 MODULE_DEVICE_TABLE(i2c, lm93_id); 2646 2647 static struct i2c_driver lm93_driver = { 2648 .class = I2C_CLASS_HWMON, 2649 .driver = { 2650 .name = "lm93", 2651 }, 2652 .probe = lm93_probe, 2653 .id_table = lm93_id, 2654 .detect = lm93_detect, 2655 .address_list = normal_i2c, 2656 }; 2657 2658 module_i2c_driver(lm93_driver); 2659 2660 MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, " 2661 "Hans J. Koch <hjk@hansjkoch.de>"); 2662 MODULE_DESCRIPTION("LM93 driver"); 2663 MODULE_LICENSE("GPL"); 2664