1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring 4 * 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 Lab 23 * 24 * Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de> 25 * Copyright (c) 2007 Hans J. Koch, Linutronix GmbH 26 */ 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 0x3e 43 #define LM93_REG_VER 0x3f 44 #define LM93_REG_STATUS_CONTROL 0xe2 45 #define LM93_REG_CONFIG 0xe3 46 #define LM93_REG_SLEEP_CONTROL 0xe4 47 48 /* alarm values start here */ 49 #define LM93_REG_HOST_ERROR_1 0x48 50 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 0x0 76 #define LM93_PWM_CTL2 0x1 77 #define LM93_PWM_CTL3 0x2 78 #define LM93_PWM_CTL4 0x3 79 80 /* GPIO input state */ 81 #define LM93_REG_GPI 0x6b 82 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 0xc0 91 #define LM93_REG_BOOST_HYST_34 0xc1 92 #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 0xc3 96 #define LM93_REG_PWM_MIN_HYST_34 0xc4 97 #define LM93_REG_PWM_MIN_HYST(nr) (0xc3 + (nr)/2) 98 99 /* prochot_override & prochot_interval */ 100 #define LM93_REG_PROCHOT_OVERRIDE 0xc6 101 #define LM93_REG_PROCHOT_INTERVAL 0xc7 102 103 /* 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 0xbf 111 112 /* miscellaneous */ 113 #define LM93_REG_SFC1 0xbc 114 #define LM93_REG_SFC2 0xbd 115 #define LM93_REG_GPI_VID_CTL 0xbe 116 #define LM93_REG_SF_TACH_TO_PWM 0xe0 117 118 /* error masks */ 119 #define LM93_REG_GPI_ERR_MASK 0xec 120 #define LM93_REG_MISC_ERR_MASK 0xed 121 122 /* LM93 REGISTER VALUES */ 123 #define LM93_MFR_ID 0x73 124 #define LM93_MFR_ID_PROTOTYPE 0x72 125 126 /* LM94 REGISTER VALUES */ 127 #define LM94_MFR_ID_2 0x7a 128 #define LM94_MFR_ID 0x79 129 #define LM94_MFR_ID_PROTOTYPE 0x78 130 131 /* 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 */ 138 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 139 140 /* Insmod parameters */ 141 142 static bool disable_block; 143 module_param(disable_block, bool, 0); 144 MODULE_PARM_DESC(disable_block, 145 "Set to non-zero to disable SMBus block data transactions."); 146 147 static bool init; 148 module_param(init, bool, 0); 149 MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization."); 150 151 static int vccp_limit_type[2] = {0, 0}; 152 module_param_array(vccp_limit_type, int, NULL, 0); 153 MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes."); 154 155 static int vid_agtl; 156 module_param(vid_agtl, int, 0); 157 MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds."); 158 159 /* Driver data */ 160 static struct i2c_driver lm93_driver; 161 162 /* LM93 BLOCK READ COMMANDS */ 163 static 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 below 180 * REG: 64 bits in 8 registers, as immediately below 181 */ 182 struct 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 data 195 */ 196 struct 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 readings 212 * temp1 - temp2: filtered readings 213 */ 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 was 292 * last written for the OVR_DC field (duty cycle override). So, we 293 * save the user-commanded value here. 294 */ 295 u8 pwm_override[2]; 296 }; 297 298 /* 299 * VID: mV 300 * REG: 6-bits, right justified, *always* using Intel VRM/VRD 10 301 */ 302 static 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) */ 308 static 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 }; 312 static 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)*/ 325 static 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 }; 329 330 static 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 */ 341 342 static 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 nr 356 * REG: scaling determined by channel nr 357 */ 358 static 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 */ 381 static 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 limit 394 * upper also determines which nibble of the register is returned 395 * (the other nibble will be 0x0) 396 */ 397 static 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 complement 412 */ 413 static 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 complement 424 */ 425 static 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 */ 433 static 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 offsets 441 * reg is 4 bits right justified 442 * mode 0 => 1C/bit, mode !0 => 0.5C/bit 443 */ 444 static 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 offsets 455 * returns 4 bits right justified 456 * mode 0 => 1C/bit, mode !0 => 0.5C/bit 457 */ 458 static 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 */ 468 static 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 else 476 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 <= 3 483 */ 484 static 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 else 494 return (new << 4 & 0xf0) | (old & 0x0f); 495 } 496 497 static 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 } 521 522 static 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 documentation 549 * REG: 0-13 as mapped below... right justified 550 */ 551 enum pwm_freq { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ }; 552 553 static 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 }; 575 576 static 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 */ 582 static 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 } 592 593 static 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* justified 602 */ 603 static 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: HZ 620 * REG: 0-7 as mapped below 621 */ 622 static int lm93_pwm_freq_map[8] = { 623 22500, 96, 84, 72, 60, 48, 36, 12 624 }; 625 626 static 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 */ 632 static 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 seconds 645 * REG: 0-7 as mapped below 646 */ 647 static int lm93_spinup_time_map[8] = { 648 0, 10, 25, 40, 70, 100, 200, 400, 649 }; 650 651 static 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 */ 657 static 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 0 669 #define LM93_RAMP_MAX 75 670 671 static int LM93_RAMP_FROM_REG(u8 reg) 672 { 673 return (reg & 0x0f) * 5; 674 } 675 676 /* 677 * RAMP: 1/100 seconds 678 * REG: 50mS/bit 4-bits right justified 679 */ 680 static 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 */ 690 static 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 below 699 */ 700 static int lm93_interval_map[10] = { 701 73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200, 702 }; 703 704 static int LM93_INTERVAL_FROM_REG(u8 reg) 705 { 706 return lm93_interval_map[reg & 0x0f]; 707 } 708 709 /* round up to nearest match */ 710 static 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 LSB 723 * REG: inverted 724 */ 725 static unsigned LM93_GPI_FROM_REG(u8 reg) 726 { 727 return ~reg & 0xff; 728 } 729 730 /* 731 * alarm bitmask definitions 732 * The LM93 has nearly 64 bits of error status... I've pared that down to 733 * 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 provide 736 * 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 0x00000001 741 #define LM93_ALARM_IN2 0x00000002 742 #define LM93_ALARM_IN3 0x00000004 743 #define LM93_ALARM_IN4 0x00000008 744 #define LM93_ALARM_IN5 0x00000010 745 #define LM93_ALARM_IN6 0x00000020 746 #define LM93_ALARM_IN7 0x00000040 747 #define LM93_ALARM_IN8 0x00000080 748 #define LM93_ALARM_IN9 0x00000100 749 #define LM93_ALARM_IN10 0x00000200 750 #define LM93_ALARM_IN11 0x00000400 751 #define LM93_ALARM_IN12 0x00000800 752 #define LM93_ALARM_IN13 0x00001000 753 #define LM93_ALARM_IN14 0x00002000 754 #define LM93_ALARM_IN15 0x00004000 755 #define LM93_ALARM_IN16 0x00008000 756 #define LM93_ALARM_FAN1 0x00010000 757 #define LM93_ALARM_FAN2 0x00020000 758 #define LM93_ALARM_FAN3 0x00040000 759 #define LM93_ALARM_FAN4 0x00080000 760 #define LM93_ALARM_PH1_ERR 0x00100000 761 #define LM93_ALARM_PH2_ERR 0x00200000 762 #define LM93_ALARM_SCSI1_ERR 0x00400000 763 #define LM93_ALARM_SCSI2_ERR 0x00800000 764 #define LM93_ALARM_DVDDP1_ERR 0x01000000 765 #define LM93_ALARM_DVDDP2_ERR 0x02000000 766 #define LM93_ALARM_D1_ERR 0x04000000 767 #define LM93_ALARM_D2_ERR 0x08000000 768 #define LM93_ALARM_TEMP1 0x10000000 769 #define LM93_ALARM_TEMP2 0x20000000 770 #define LM93_ALARM_TEMP3 0x40000000 771 772 static 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 else 780 result |= b1.host_status_2 & 0x40; 781 782 if (vccp_limit_type[1]) 783 result |= (b1.host_status_4 & 0x20) << 2; 784 else 785 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 5 797 798 static 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 } 820 821 static 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 } 835 836 static 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 } 858 859 static 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 } 873 874 static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX]; 875 876 /* 877 * read block data into values, retry if not expected length 878 * fbn => index to lm93_block_read_cmds table 879 * (Fixed Block Number - section 14.5.2 of LM93 datasheet) 880 */ 881 static 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 } 906 907 static 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 */ 928 static 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 */ 999 static 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 */ 1031 static 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 */ 1101 static 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 1110 static SENSOR_DEVICE_ATTR_RO(in1_input, in, 0); 1111 static SENSOR_DEVICE_ATTR_RO(in2_input, in, 1); 1112 static SENSOR_DEVICE_ATTR_RO(in3_input, in, 2); 1113 static SENSOR_DEVICE_ATTR_RO(in4_input, in, 3); 1114 static SENSOR_DEVICE_ATTR_RO(in5_input, in, 4); 1115 static SENSOR_DEVICE_ATTR_RO(in6_input, in, 5); 1116 static SENSOR_DEVICE_ATTR_RO(in7_input, in, 6); 1117 static SENSOR_DEVICE_ATTR_RO(in8_input, in, 7); 1118 static SENSOR_DEVICE_ATTR_RO(in9_input, in, 8); 1119 static SENSOR_DEVICE_ATTR_RO(in10_input, in, 9); 1120 static SENSOR_DEVICE_ATTR_RO(in11_input, in, 10); 1121 static SENSOR_DEVICE_ATTR_RO(in12_input, in, 11); 1122 static SENSOR_DEVICE_ATTR_RO(in13_input, in, 12); 1123 static SENSOR_DEVICE_ATTR_RO(in14_input, in, 13); 1124 static SENSOR_DEVICE_ATTR_RO(in15_input, in, 14); 1125 static SENSOR_DEVICE_ATTR_RO(in16_input, in, 15); 1126 1127 static 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 1144 static 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 1175 static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 0); 1176 static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 1); 1177 static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 2); 1178 static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 3); 1179 static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 4); 1180 static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 5); 1181 static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 6); 1182 static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 7); 1183 static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 8); 1184 static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 9); 1185 static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 10); 1186 static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 11); 1187 static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 12); 1188 static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 13); 1189 static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 14); 1190 static SENSOR_DEVICE_ATTR_RW(in16_min, in_min, 15); 1191 1192 static 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 1209 static 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 1240 static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 0); 1241 static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 1); 1242 static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 2); 1243 static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 3); 1244 static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 4); 1245 static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 5); 1246 static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 6); 1247 static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 7); 1248 static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 8); 1249 static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 9); 1250 static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 10); 1251 static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 11); 1252 static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 12); 1253 static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 13); 1254 static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 14); 1255 static SENSOR_DEVICE_ATTR_RW(in16_max, in_max, 15); 1256 1257 static 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 1265 static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); 1266 static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); 1267 static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); 1268 1269 static 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 1277 static 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 1298 static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); 1299 static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); 1300 static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); 1301 1302 static 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 1310 static 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 1331 static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); 1332 static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); 1333 static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); 1334 1335 static 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 1343 static 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 1364 static SENSOR_DEVICE_ATTR_RW(temp1_auto_base, temp_auto_base, 0); 1365 static SENSOR_DEVICE_ATTR_RW(temp2_auto_base, temp_auto_base, 1); 1366 static SENSOR_DEVICE_ATTR_RW(temp3_auto_base, temp_auto_base, 2); 1367 1368 static 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 1376 static 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 1397 static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost, temp_auto_boost, 0); 1398 static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost, temp_auto_boost, 1); 1399 static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost, temp_auto_boost, 2); 1400 1401 static 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 1412 static 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 1438 static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost_hyst, temp_auto_boost_hyst, 0); 1439 static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost_hyst, temp_auto_boost_hyst, 1); 1440 static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost_hyst, temp_auto_boost_hyst, 2); 1441 1442 static 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 1455 static 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 1484 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset1, temp_auto_offset, 0, 0); 1485 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset2, temp_auto_offset, 1, 0); 1486 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset3, temp_auto_offset, 2, 0); 1487 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset4, temp_auto_offset, 3, 0); 1488 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset5, temp_auto_offset, 4, 0); 1489 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset6, temp_auto_offset, 5, 0); 1490 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset7, temp_auto_offset, 6, 0); 1491 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset8, temp_auto_offset, 7, 0); 1492 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset9, temp_auto_offset, 8, 0); 1493 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset10, temp_auto_offset, 9, 0); 1494 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset11, temp_auto_offset, 10, 0); 1495 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset12, temp_auto_offset, 11, 0); 1496 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset1, temp_auto_offset, 0, 1); 1497 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset2, temp_auto_offset, 1, 1); 1498 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset3, temp_auto_offset, 2, 1); 1499 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset4, temp_auto_offset, 3, 1); 1500 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset5, temp_auto_offset, 4, 1); 1501 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset6, temp_auto_offset, 5, 1); 1502 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset7, temp_auto_offset, 6, 1); 1503 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset8, temp_auto_offset, 7, 1); 1504 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset9, temp_auto_offset, 8, 1); 1505 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset10, temp_auto_offset, 9, 1); 1506 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset11, temp_auto_offset, 10, 1); 1507 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset12, temp_auto_offset, 11, 1); 1508 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset1, temp_auto_offset, 0, 2); 1509 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset2, temp_auto_offset, 1, 2); 1510 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset3, temp_auto_offset, 2, 2); 1511 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset4, temp_auto_offset, 3, 2); 1512 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset5, temp_auto_offset, 4, 2); 1513 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset6, temp_auto_offset, 5, 2); 1514 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset7, temp_auto_offset, 6, 2); 1515 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset8, temp_auto_offset, 7, 2); 1516 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset9, temp_auto_offset, 8, 2); 1517 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset10, temp_auto_offset, 9, 2); 1518 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset11, temp_auto_offset, 10, 2); 1519 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset12, temp_auto_offset, 11, 2); 1520 1521 static 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 1534 static 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 1562 static SENSOR_DEVICE_ATTR_RW(temp1_auto_pwm_min, temp_auto_pwm_min, 0); 1563 static SENSOR_DEVICE_ATTR_RW(temp2_auto_pwm_min, temp_auto_pwm_min, 1); 1564 static SENSOR_DEVICE_ATTR_RW(temp3_auto_pwm_min, temp_auto_pwm_min, 2); 1565 1566 static 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 1577 static 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 1605 static SENSOR_DEVICE_ATTR_RW(temp1_auto_offset_hyst, temp_auto_offset_hyst, 0); 1606 static SENSOR_DEVICE_ATTR_RW(temp2_auto_offset_hyst, temp_auto_offset_hyst, 1); 1607 static SENSOR_DEVICE_ATTR_RW(temp3_auto_offset_hyst, temp_auto_offset_hyst, 2); 1608 1609 static 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 1619 static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0); 1620 static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1); 1621 static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2); 1622 static SENSOR_DEVICE_ATTR_RO(fan4_input, fan_input, 3); 1623 1624 static 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 1633 static 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 1654 static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); 1655 static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); 1656 static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); 1657 static 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 | 0 1665 * T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1 1666 * 1667 * data->sfc2: (enable bits) 1668 * 1669 * bit | 3 | 2 | 1 | 0 1670 * T4 T3 T2 T1 1671 */ 1672 1673 static 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 calling 1692 * fan is 0-3, indicating fan1-fan4 1693 */ 1694 static 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 else 1708 data->sfc2 &= ~(1 << fan); 1709 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1710 } 1711 1712 static 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 1742 static SENSOR_DEVICE_ATTR_RW(fan1_smart_tach, fan_smart_tach, 0); 1743 static SENSOR_DEVICE_ATTR_RW(fan2_smart_tach, fan_smart_tach, 1); 1744 static SENSOR_DEVICE_ATTR_RW(fan3_smart_tach, fan_smart_tach, 2); 1745 static SENSOR_DEVICE_ATTR_RW(fan4_smart_tach, fan_smart_tach, 3); 1746 1747 static 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 1765 static 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 1793 static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0); 1794 static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1); 1795 1796 static 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 else 1808 rc = 2; 1809 return sprintf(buf, "%ld\n", rc); 1810 } 1811 1812 static 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 1850 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0); 1851 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1); 1852 1853 static 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 calling 1866 * pwm is 0-1, indicating pwm1-pwm2 1867 * this disables smart tach for all tach channels bound to the given pwm 1868 */ 1869 static 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 1888 static 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 1915 static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0); 1916 static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1); 1917 1918 static 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 1927 static 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 1949 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels, pwm_auto_channels, 0); 1950 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels, pwm_auto_channels, 1); 1951 1952 static 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 1967 static 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 1994 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_min, pwm_auto_spinup_min, 0); 1995 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_min, pwm_auto_spinup_min, 1); 1996 1997 static 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 2007 static 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 2031 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_time, pwm_auto_spinup_time, 0); 2032 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_time, pwm_auto_spinup_time, 1); 2033 2034 static 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 2042 static 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 2064 static DEVICE_ATTR_RW(pwm_auto_prochot_ramp); 2065 2066 static 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 2074 static 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 2096 static DEVICE_ATTR_RW(pwm_auto_vrdhot_ramp); 2097 2098 static 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 2106 static SENSOR_DEVICE_ATTR_RO(cpu0_vid, vid, 0); 2107 static SENSOR_DEVICE_ATTR_RO(cpu1_vid, vid, 1); 2108 2109 static 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 2117 static SENSOR_DEVICE_ATTR_RO(prochot1, prochot, 0); 2118 static SENSOR_DEVICE_ATTR_RO(prochot2, prochot, 1); 2119 2120 static 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 2128 static SENSOR_DEVICE_ATTR_RO(prochot1_avg, prochot_avg, 0); 2129 static SENSOR_DEVICE_ATTR_RO(prochot2_avg, prochot_avg, 1); 2130 2131 static 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 2139 static 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 2161 static SENSOR_DEVICE_ATTR_RW(prochot1_max, prochot_max, 0); 2162 static SENSOR_DEVICE_ATTR_RW(prochot2_max, prochot_max, 1); 2163 2164 static const u8 prochot_override_mask[] = { 0x80, 0x40 }; 2165 2166 static 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 2175 static 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 else 2193 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 2200 static SENSOR_DEVICE_ATTR_RW(prochot1_override, prochot_override, 0); 2201 static SENSOR_DEVICE_ATTR_RW(prochot2_override, prochot_override, 1); 2202 2203 static 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 else 2212 tmp = data->prochot_interval & 0x0f; 2213 return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp)); 2214 } 2215 2216 static 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 else 2236 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 2243 static SENSOR_DEVICE_ATTR_RW(prochot1_interval, prochot_interval, 0); 2244 static SENSOR_DEVICE_ATTR_RW(prochot2_interval, prochot_interval, 1); 2245 2246 static 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 2254 static 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 2276 static DEVICE_ATTR_RW(prochot_override_duty_cycle); 2277 2278 static 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 2285 static 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 else 2302 data->config &= ~0x10; 2303 lm93_write_byte(client, LM93_REG_CONFIG, data->config); 2304 mutex_unlock(&data->update_lock); 2305 return count; 2306 } 2307 2308 static DEVICE_ATTR_RW(prochot_short); 2309 2310 static 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 2319 static SENSOR_DEVICE_ATTR_RO(vrdhot1, vrdhot, 0); 2320 static SENSOR_DEVICE_ATTR_RO(vrdhot2, vrdhot, 1); 2321 2322 static 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 2329 static DEVICE_ATTR_RO(gpio); 2330 2331 static 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 2338 static DEVICE_ATTR_RO(alarms); 2339 2340 static 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 NULL 2494 }; 2495 2496 ATTRIBUTE_GROUPS(lm93); 2497 2498 static 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 */ 2544 static 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 2586 static 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 2626 static const struct i2c_device_id lm93_id[] = { 2627 { "lm93", 0 }, 2628 { "lm94", 0 }, 2629 { } 2630 }; 2631 MODULE_DEVICE_TABLE(i2c, lm93_id); 2632 2633 static struct i2c_driver lm93_driver = { 2634 .class = I2C_CLASS_HWMON, 2635 .driver = { 2636 .name = "lm93", 2637 }, 2638 .probe_new = lm93_probe, 2639 .id_table = lm93_id, 2640 .detect = lm93_detect, 2641 .address_list = normal_i2c, 2642 }; 2643 2644 module_i2c_driver(lm93_driver); 2645 2646 MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, " 2647 "Hans J. Koch <hjk@hansjkoch.de>"); 2648 MODULE_DESCRIPTION("LM93 driver"); 2649 MODULE_LICENSE("GPL"); 2650