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 show_in(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(in1_input, S_IRUGO, show_in, NULL, 0); 1124 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1); 1125 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2); 1126 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3); 1127 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4); 1128 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5); 1129 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6); 1130 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7); 1131 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8); 1132 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9); 1133 static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10); 1134 static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11); 1135 static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12); 1136 static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13); 1137 static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14); 1138 static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15); 1139 1140 static ssize_t show_in_min(struct device *dev, 1141 struct device_attribute *attr, 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 store_in_min(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(in1_min, S_IWUSR | S_IRUGO, 1189 show_in_min, store_in_min, 0); 1190 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO, 1191 show_in_min, store_in_min, 1); 1192 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO, 1193 show_in_min, store_in_min, 2); 1194 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO, 1195 show_in_min, store_in_min, 3); 1196 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO, 1197 show_in_min, store_in_min, 4); 1198 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO, 1199 show_in_min, store_in_min, 5); 1200 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO, 1201 show_in_min, store_in_min, 6); 1202 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO, 1203 show_in_min, store_in_min, 7); 1204 static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO, 1205 show_in_min, store_in_min, 8); 1206 static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO, 1207 show_in_min, store_in_min, 9); 1208 static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO, 1209 show_in_min, store_in_min, 10); 1210 static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO, 1211 show_in_min, store_in_min, 11); 1212 static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO, 1213 show_in_min, store_in_min, 12); 1214 static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO, 1215 show_in_min, store_in_min, 13); 1216 static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO, 1217 show_in_min, store_in_min, 14); 1218 static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO, 1219 show_in_min, store_in_min, 15); 1220 1221 static ssize_t show_in_max(struct device *dev, 1222 struct device_attribute *attr, char *buf) 1223 { 1224 int nr = (to_sensor_dev_attr(attr))->index; 1225 struct lm93_data *data = lm93_update_device(dev); 1226 int vccp = nr - 6; 1227 long rc, vid; 1228 1229 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) { 1230 vid = LM93_VID_FROM_REG(data->vid[vccp]); 1231 rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid); 1232 } else { 1233 rc = LM93_IN_FROM_REG(nr, data->block7[nr].max); 1234 } 1235 return sprintf(buf, "%ld\n", rc); 1236 } 1237 1238 static ssize_t store_in_max(struct device *dev, struct device_attribute *attr, 1239 const char *buf, size_t count) 1240 { 1241 int nr = (to_sensor_dev_attr(attr))->index; 1242 struct lm93_data *data = dev_get_drvdata(dev); 1243 struct i2c_client *client = data->client; 1244 int vccp = nr - 6; 1245 long vid; 1246 unsigned long val; 1247 int err; 1248 1249 err = kstrtoul(buf, 10, &val); 1250 if (err) 1251 return err; 1252 1253 mutex_lock(&data->update_lock); 1254 if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) { 1255 vid = LM93_VID_FROM_REG(data->vid[vccp]); 1256 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) | 1257 LM93_IN_REL_TO_REG(val, 1, vid); 1258 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp), 1259 data->vccp_limits[vccp]); 1260 } else { 1261 data->block7[nr].max = LM93_IN_TO_REG(nr, val); 1262 lm93_write_byte(client, LM93_REG_IN_MAX(nr), 1263 data->block7[nr].max); 1264 } 1265 mutex_unlock(&data->update_lock); 1266 return count; 1267 } 1268 1269 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO, 1270 show_in_max, store_in_max, 0); 1271 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO, 1272 show_in_max, store_in_max, 1); 1273 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO, 1274 show_in_max, store_in_max, 2); 1275 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO, 1276 show_in_max, store_in_max, 3); 1277 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO, 1278 show_in_max, store_in_max, 4); 1279 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO, 1280 show_in_max, store_in_max, 5); 1281 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO, 1282 show_in_max, store_in_max, 6); 1283 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO, 1284 show_in_max, store_in_max, 7); 1285 static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO, 1286 show_in_max, store_in_max, 8); 1287 static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO, 1288 show_in_max, store_in_max, 9); 1289 static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO, 1290 show_in_max, store_in_max, 10); 1291 static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO, 1292 show_in_max, store_in_max, 11); 1293 static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO, 1294 show_in_max, store_in_max, 12); 1295 static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO, 1296 show_in_max, store_in_max, 13); 1297 static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO, 1298 show_in_max, store_in_max, 14); 1299 static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO, 1300 show_in_max, store_in_max, 15); 1301 1302 static ssize_t show_temp(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->block2[nr])); 1308 } 1309 1310 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); 1311 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); 1312 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); 1313 1314 static ssize_t show_temp_min(struct device *dev, 1315 struct device_attribute *attr, char *buf) 1316 { 1317 int nr = (to_sensor_dev_attr(attr))->index; 1318 struct lm93_data *data = lm93_update_device(dev); 1319 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min)); 1320 } 1321 1322 static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr, 1323 const char *buf, size_t count) 1324 { 1325 int nr = (to_sensor_dev_attr(attr))->index; 1326 struct lm93_data *data = dev_get_drvdata(dev); 1327 struct i2c_client *client = data->client; 1328 long val; 1329 int err; 1330 1331 err = kstrtol(buf, 10, &val); 1332 if (err) 1333 return err; 1334 1335 mutex_lock(&data->update_lock); 1336 data->temp_lim[nr].min = LM93_TEMP_TO_REG(val); 1337 lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min); 1338 mutex_unlock(&data->update_lock); 1339 return count; 1340 } 1341 1342 static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, 1343 show_temp_min, store_temp_min, 0); 1344 static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, 1345 show_temp_min, store_temp_min, 1); 1346 static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, 1347 show_temp_min, store_temp_min, 2); 1348 1349 static ssize_t show_temp_max(struct device *dev, 1350 struct device_attribute *attr, char *buf) 1351 { 1352 int nr = (to_sensor_dev_attr(attr))->index; 1353 struct lm93_data *data = lm93_update_device(dev); 1354 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max)); 1355 } 1356 1357 static ssize_t store_temp_max(struct device *dev, 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->temp_lim[nr].max = LM93_TEMP_TO_REG(val); 1372 lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max); 1373 mutex_unlock(&data->update_lock); 1374 return count; 1375 } 1376 1377 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, 1378 show_temp_max, store_temp_max, 0); 1379 static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, 1380 show_temp_max, store_temp_max, 1); 1381 static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, 1382 show_temp_max, store_temp_max, 2); 1383 1384 static ssize_t show_temp_auto_base(struct device *dev, 1385 struct device_attribute *attr, char *buf) 1386 { 1387 int nr = (to_sensor_dev_attr(attr))->index; 1388 struct lm93_data *data = lm93_update_device(dev); 1389 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr])); 1390 } 1391 1392 static ssize_t store_temp_auto_base(struct device *dev, 1393 struct device_attribute *attr, 1394 const char *buf, size_t count) 1395 { 1396 int nr = (to_sensor_dev_attr(attr))->index; 1397 struct lm93_data *data = dev_get_drvdata(dev); 1398 struct i2c_client *client = data->client; 1399 long val; 1400 int err; 1401 1402 err = kstrtol(buf, 10, &val); 1403 if (err) 1404 return err; 1405 1406 mutex_lock(&data->update_lock); 1407 data->block10.base[nr] = LM93_TEMP_TO_REG(val); 1408 lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]); 1409 mutex_unlock(&data->update_lock); 1410 return count; 1411 } 1412 1413 static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO, 1414 show_temp_auto_base, store_temp_auto_base, 0); 1415 static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO, 1416 show_temp_auto_base, store_temp_auto_base, 1); 1417 static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO, 1418 show_temp_auto_base, store_temp_auto_base, 2); 1419 1420 static ssize_t show_temp_auto_boost(struct device *dev, 1421 struct device_attribute *attr, char *buf) 1422 { 1423 int nr = (to_sensor_dev_attr(attr))->index; 1424 struct lm93_data *data = lm93_update_device(dev); 1425 return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr])); 1426 } 1427 1428 static ssize_t store_temp_auto_boost(struct device *dev, 1429 struct device_attribute *attr, 1430 const char *buf, size_t count) 1431 { 1432 int nr = (to_sensor_dev_attr(attr))->index; 1433 struct lm93_data *data = dev_get_drvdata(dev); 1434 struct i2c_client *client = data->client; 1435 long val; 1436 int err; 1437 1438 err = kstrtol(buf, 10, &val); 1439 if (err) 1440 return err; 1441 1442 mutex_lock(&data->update_lock); 1443 data->boost[nr] = LM93_TEMP_TO_REG(val); 1444 lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]); 1445 mutex_unlock(&data->update_lock); 1446 return count; 1447 } 1448 1449 static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO, 1450 show_temp_auto_boost, store_temp_auto_boost, 0); 1451 static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO, 1452 show_temp_auto_boost, store_temp_auto_boost, 1); 1453 static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO, 1454 show_temp_auto_boost, store_temp_auto_boost, 2); 1455 1456 static ssize_t show_temp_auto_boost_hyst(struct device *dev, 1457 struct device_attribute *attr, 1458 char *buf) 1459 { 1460 int nr = (to_sensor_dev_attr(attr))->index; 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_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode)); 1465 } 1466 1467 static ssize_t store_temp_auto_boost_hyst(struct device *dev, 1468 struct device_attribute *attr, 1469 const char *buf, size_t count) 1470 { 1471 int nr = (to_sensor_dev_attr(attr))->index; 1472 struct lm93_data *data = dev_get_drvdata(dev); 1473 struct i2c_client *client = data->client; 1474 unsigned long val; 1475 int err; 1476 1477 err = kstrtoul(buf, 10, &val); 1478 if (err) 1479 return err; 1480 1481 mutex_lock(&data->update_lock); 1482 /* force 0.5C/bit mode */ 1483 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1484 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20); 1485 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1486 data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1); 1487 lm93_write_byte(client, LM93_REG_BOOST_HYST(nr), 1488 data->boost_hyst[nr/2]); 1489 mutex_unlock(&data->update_lock); 1490 return count; 1491 } 1492 1493 static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO, 1494 show_temp_auto_boost_hyst, 1495 store_temp_auto_boost_hyst, 0); 1496 static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO, 1497 show_temp_auto_boost_hyst, 1498 store_temp_auto_boost_hyst, 1); 1499 static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO, 1500 show_temp_auto_boost_hyst, 1501 store_temp_auto_boost_hyst, 2); 1502 1503 static ssize_t show_temp_auto_offset(struct device *dev, 1504 struct device_attribute *attr, char *buf) 1505 { 1506 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr); 1507 int nr = s_attr->index; 1508 int ofs = s_attr->nr; 1509 struct lm93_data *data = lm93_update_device(dev); 1510 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr); 1511 return sprintf(buf, "%d\n", 1512 LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs], 1513 nr, mode)); 1514 } 1515 1516 static ssize_t store_temp_auto_offset(struct device *dev, 1517 struct device_attribute *attr, 1518 const char *buf, size_t count) 1519 { 1520 struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr); 1521 int nr = s_attr->index; 1522 int ofs = s_attr->nr; 1523 struct lm93_data *data = dev_get_drvdata(dev); 1524 struct i2c_client *client = data->client; 1525 unsigned long val; 1526 int err; 1527 1528 err = kstrtoul(buf, 10, &val); 1529 if (err) 1530 return err; 1531 1532 mutex_lock(&data->update_lock); 1533 /* force 0.5C/bit mode */ 1534 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1535 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20); 1536 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1537 data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG( 1538 data->block10.offset[ofs], val, nr, 1); 1539 lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs), 1540 data->block10.offset[ofs]); 1541 mutex_unlock(&data->update_lock); 1542 return count; 1543 } 1544 1545 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO, 1546 show_temp_auto_offset, store_temp_auto_offset, 0, 0); 1547 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO, 1548 show_temp_auto_offset, store_temp_auto_offset, 1, 0); 1549 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO, 1550 show_temp_auto_offset, store_temp_auto_offset, 2, 0); 1551 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO, 1552 show_temp_auto_offset, store_temp_auto_offset, 3, 0); 1553 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO, 1554 show_temp_auto_offset, store_temp_auto_offset, 4, 0); 1555 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO, 1556 show_temp_auto_offset, store_temp_auto_offset, 5, 0); 1557 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO, 1558 show_temp_auto_offset, store_temp_auto_offset, 6, 0); 1559 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO, 1560 show_temp_auto_offset, store_temp_auto_offset, 7, 0); 1561 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO, 1562 show_temp_auto_offset, store_temp_auto_offset, 8, 0); 1563 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO, 1564 show_temp_auto_offset, store_temp_auto_offset, 9, 0); 1565 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO, 1566 show_temp_auto_offset, store_temp_auto_offset, 10, 0); 1567 static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO, 1568 show_temp_auto_offset, store_temp_auto_offset, 11, 0); 1569 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO, 1570 show_temp_auto_offset, store_temp_auto_offset, 0, 1); 1571 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO, 1572 show_temp_auto_offset, store_temp_auto_offset, 1, 1); 1573 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO, 1574 show_temp_auto_offset, store_temp_auto_offset, 2, 1); 1575 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO, 1576 show_temp_auto_offset, store_temp_auto_offset, 3, 1); 1577 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO, 1578 show_temp_auto_offset, store_temp_auto_offset, 4, 1); 1579 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO, 1580 show_temp_auto_offset, store_temp_auto_offset, 5, 1); 1581 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO, 1582 show_temp_auto_offset, store_temp_auto_offset, 6, 1); 1583 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO, 1584 show_temp_auto_offset, store_temp_auto_offset, 7, 1); 1585 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO, 1586 show_temp_auto_offset, store_temp_auto_offset, 8, 1); 1587 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO, 1588 show_temp_auto_offset, store_temp_auto_offset, 9, 1); 1589 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO, 1590 show_temp_auto_offset, store_temp_auto_offset, 10, 1); 1591 static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO, 1592 show_temp_auto_offset, store_temp_auto_offset, 11, 1); 1593 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO, 1594 show_temp_auto_offset, store_temp_auto_offset, 0, 2); 1595 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO, 1596 show_temp_auto_offset, store_temp_auto_offset, 1, 2); 1597 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO, 1598 show_temp_auto_offset, store_temp_auto_offset, 2, 2); 1599 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO, 1600 show_temp_auto_offset, store_temp_auto_offset, 3, 2); 1601 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO, 1602 show_temp_auto_offset, store_temp_auto_offset, 4, 2); 1603 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO, 1604 show_temp_auto_offset, store_temp_auto_offset, 5, 2); 1605 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO, 1606 show_temp_auto_offset, store_temp_auto_offset, 6, 2); 1607 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO, 1608 show_temp_auto_offset, store_temp_auto_offset, 7, 2); 1609 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO, 1610 show_temp_auto_offset, store_temp_auto_offset, 8, 2); 1611 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO, 1612 show_temp_auto_offset, store_temp_auto_offset, 9, 2); 1613 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO, 1614 show_temp_auto_offset, store_temp_auto_offset, 10, 2); 1615 static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO, 1616 show_temp_auto_offset, store_temp_auto_offset, 11, 2); 1617 1618 static ssize_t show_temp_auto_pwm_min(struct device *dev, 1619 struct device_attribute *attr, char *buf) 1620 { 1621 int nr = (to_sensor_dev_attr(attr))->index; 1622 u8 reg, ctl4; 1623 struct lm93_data *data = lm93_update_device(dev); 1624 reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f; 1625 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1626 return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ? 1627 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ)); 1628 } 1629 1630 static ssize_t store_temp_auto_pwm_min(struct device *dev, 1631 struct device_attribute *attr, 1632 const char *buf, size_t count) 1633 { 1634 int nr = (to_sensor_dev_attr(attr))->index; 1635 struct lm93_data *data = dev_get_drvdata(dev); 1636 struct i2c_client *client = data->client; 1637 u8 reg, ctl4; 1638 unsigned long val; 1639 int err; 1640 1641 err = kstrtoul(buf, 10, &val); 1642 if (err) 1643 return err; 1644 1645 mutex_lock(&data->update_lock); 1646 reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr)); 1647 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 1648 reg = (reg & 0x0f) | 1649 LM93_PWM_TO_REG(val, (ctl4 & 0x07) ? 1650 LM93_PWM_MAP_LO_FREQ : 1651 LM93_PWM_MAP_HI_FREQ) << 4; 1652 data->auto_pwm_min_hyst[nr/2] = reg; 1653 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg); 1654 mutex_unlock(&data->update_lock); 1655 return count; 1656 } 1657 1658 static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO, 1659 show_temp_auto_pwm_min, 1660 store_temp_auto_pwm_min, 0); 1661 static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO, 1662 show_temp_auto_pwm_min, 1663 store_temp_auto_pwm_min, 1); 1664 static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO, 1665 show_temp_auto_pwm_min, 1666 store_temp_auto_pwm_min, 2); 1667 1668 static ssize_t show_temp_auto_offset_hyst(struct device *dev, 1669 struct device_attribute *attr, char *buf) 1670 { 1671 int nr = (to_sensor_dev_attr(attr))->index; 1672 struct lm93_data *data = lm93_update_device(dev); 1673 int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr); 1674 return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG( 1675 data->auto_pwm_min_hyst[nr / 2], mode)); 1676 } 1677 1678 static ssize_t store_temp_auto_offset_hyst(struct device *dev, 1679 struct device_attribute *attr, 1680 const char *buf, size_t count) 1681 { 1682 int nr = (to_sensor_dev_attr(attr))->index; 1683 struct lm93_data *data = dev_get_drvdata(dev); 1684 struct i2c_client *client = data->client; 1685 u8 reg; 1686 unsigned long val; 1687 int err; 1688 1689 err = kstrtoul(buf, 10, &val); 1690 if (err) 1691 return err; 1692 1693 mutex_lock(&data->update_lock); 1694 /* force 0.5C/bit mode */ 1695 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1696 data->sfc2 |= ((nr < 2) ? 0x10 : 0x20); 1697 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1698 reg = data->auto_pwm_min_hyst[nr/2]; 1699 reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f); 1700 data->auto_pwm_min_hyst[nr/2] = reg; 1701 lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg); 1702 mutex_unlock(&data->update_lock); 1703 return count; 1704 } 1705 1706 static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO, 1707 show_temp_auto_offset_hyst, 1708 store_temp_auto_offset_hyst, 0); 1709 static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO, 1710 show_temp_auto_offset_hyst, 1711 store_temp_auto_offset_hyst, 1); 1712 static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO, 1713 show_temp_auto_offset_hyst, 1714 store_temp_auto_offset_hyst, 2); 1715 1716 static ssize_t show_fan_input(struct device *dev, 1717 struct device_attribute *attr, char *buf) 1718 { 1719 struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr); 1720 int nr = s_attr->index; 1721 struct lm93_data *data = lm93_update_device(dev); 1722 1723 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr])); 1724 } 1725 1726 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0); 1727 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1); 1728 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2); 1729 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3); 1730 1731 static ssize_t show_fan_min(struct device *dev, 1732 struct device_attribute *attr, char *buf) 1733 { 1734 int nr = (to_sensor_dev_attr(attr))->index; 1735 struct lm93_data *data = lm93_update_device(dev); 1736 1737 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr])); 1738 } 1739 1740 static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, 1741 const char *buf, size_t count) 1742 { 1743 int nr = (to_sensor_dev_attr(attr))->index; 1744 struct lm93_data *data = dev_get_drvdata(dev); 1745 struct i2c_client *client = data->client; 1746 unsigned long val; 1747 int err; 1748 1749 err = kstrtoul(buf, 10, &val); 1750 if (err) 1751 return err; 1752 1753 mutex_lock(&data->update_lock); 1754 data->block8[nr] = LM93_FAN_TO_REG(val); 1755 lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]); 1756 mutex_unlock(&data->update_lock); 1757 return count; 1758 } 1759 1760 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, 1761 show_fan_min, store_fan_min, 0); 1762 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, 1763 show_fan_min, store_fan_min, 1); 1764 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, 1765 show_fan_min, store_fan_min, 2); 1766 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, 1767 show_fan_min, store_fan_min, 3); 1768 1769 /* 1770 * some tedious bit-twiddling here to deal with the register format: 1771 * 1772 * data->sf_tach_to_pwm: (tach to pwm mapping bits) 1773 * 1774 * bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 1775 * T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1 1776 * 1777 * data->sfc2: (enable bits) 1778 * 1779 * bit | 3 | 2 | 1 | 0 1780 * T4 T3 T2 T1 1781 */ 1782 1783 static ssize_t show_fan_smart_tach(struct device *dev, 1784 struct device_attribute *attr, char *buf) 1785 { 1786 int nr = (to_sensor_dev_attr(attr))->index; 1787 struct lm93_data *data = lm93_update_device(dev); 1788 long rc = 0; 1789 int mapping; 1790 1791 /* extract the relevant mapping */ 1792 mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03; 1793 1794 /* if there's a mapping and it's enabled */ 1795 if (mapping && ((data->sfc2 >> nr) & 0x01)) 1796 rc = mapping; 1797 return sprintf(buf, "%ld\n", rc); 1798 } 1799 1800 /* 1801 * helper function - must grab data->update_lock before calling 1802 * fan is 0-3, indicating fan1-fan4 1803 */ 1804 static void lm93_write_fan_smart_tach(struct i2c_client *client, 1805 struct lm93_data *data, int fan, long value) 1806 { 1807 /* insert the new mapping and write it out */ 1808 data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM); 1809 data->sf_tach_to_pwm &= ~(0x3 << fan * 2); 1810 data->sf_tach_to_pwm |= value << fan * 2; 1811 lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm); 1812 1813 /* insert the enable bit and write it out */ 1814 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 1815 if (value) 1816 data->sfc2 |= 1 << fan; 1817 else 1818 data->sfc2 &= ~(1 << fan); 1819 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 1820 } 1821 1822 static ssize_t store_fan_smart_tach(struct device *dev, 1823 struct device_attribute *attr, 1824 const char *buf, size_t count) 1825 { 1826 int nr = (to_sensor_dev_attr(attr))->index; 1827 struct lm93_data *data = dev_get_drvdata(dev); 1828 struct i2c_client *client = data->client; 1829 unsigned long val; 1830 int err; 1831 1832 err = kstrtoul(buf, 10, &val); 1833 if (err) 1834 return err; 1835 1836 mutex_lock(&data->update_lock); 1837 /* sanity test, ignore the write otherwise */ 1838 if (val <= 2) { 1839 /* can't enable if pwm freq is 22.5KHz */ 1840 if (val) { 1841 u8 ctl4 = lm93_read_byte(client, 1842 LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4)); 1843 if ((ctl4 & 0x07) == 0) 1844 val = 0; 1845 } 1846 lm93_write_fan_smart_tach(client, data, nr, val); 1847 } 1848 mutex_unlock(&data->update_lock); 1849 return count; 1850 } 1851 1852 static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO, 1853 show_fan_smart_tach, store_fan_smart_tach, 0); 1854 static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO, 1855 show_fan_smart_tach, store_fan_smart_tach, 1); 1856 static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO, 1857 show_fan_smart_tach, store_fan_smart_tach, 2); 1858 static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO, 1859 show_fan_smart_tach, store_fan_smart_tach, 3); 1860 1861 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, 1862 char *buf) 1863 { 1864 int nr = (to_sensor_dev_attr(attr))->index; 1865 struct lm93_data *data = lm93_update_device(dev); 1866 u8 ctl2, ctl4; 1867 long rc; 1868 1869 ctl2 = data->block9[nr][LM93_PWM_CTL2]; 1870 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1871 if (ctl2 & 0x01) /* show user commanded value if enabled */ 1872 rc = data->pwm_override[nr]; 1873 else /* show present h/w value if manual pwm disabled */ 1874 rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ? 1875 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ); 1876 return sprintf(buf, "%ld\n", rc); 1877 } 1878 1879 static ssize_t store_pwm(struct device *dev, struct device_attribute *attr, 1880 const char *buf, size_t count) 1881 { 1882 int nr = (to_sensor_dev_attr(attr))->index; 1883 struct lm93_data *data = dev_get_drvdata(dev); 1884 struct i2c_client *client = data->client; 1885 u8 ctl2, ctl4; 1886 unsigned long val; 1887 int err; 1888 1889 err = kstrtoul(buf, 10, &val); 1890 if (err) 1891 return err; 1892 1893 mutex_lock(&data->update_lock); 1894 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2)); 1895 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 1896 ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ? 1897 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4; 1898 /* save user commanded value */ 1899 data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4, 1900 (ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ : 1901 LM93_PWM_MAP_HI_FREQ); 1902 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2); 1903 mutex_unlock(&data->update_lock); 1904 return count; 1905 } 1906 1907 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0); 1908 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1); 1909 1910 static ssize_t show_pwm_enable(struct device *dev, 1911 struct device_attribute *attr, char *buf) 1912 { 1913 int nr = (to_sensor_dev_attr(attr))->index; 1914 struct lm93_data *data = lm93_update_device(dev); 1915 u8 ctl2; 1916 long rc; 1917 1918 ctl2 = data->block9[nr][LM93_PWM_CTL2]; 1919 if (ctl2 & 0x01) /* manual override enabled ? */ 1920 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1; 1921 else 1922 rc = 2; 1923 return sprintf(buf, "%ld\n", rc); 1924 } 1925 1926 static ssize_t store_pwm_enable(struct device *dev, 1927 struct device_attribute *attr, 1928 const char *buf, size_t count) 1929 { 1930 int nr = (to_sensor_dev_attr(attr))->index; 1931 struct lm93_data *data = dev_get_drvdata(dev); 1932 struct i2c_client *client = data->client; 1933 u8 ctl2; 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 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2)); 1943 1944 switch (val) { 1945 case 0: 1946 ctl2 |= 0xF1; /* enable manual override, set PWM to max */ 1947 break; 1948 case 1: 1949 ctl2 |= 0x01; /* enable manual override */ 1950 break; 1951 case 2: 1952 ctl2 &= ~0x01; /* disable manual override */ 1953 break; 1954 default: 1955 mutex_unlock(&data->update_lock); 1956 return -EINVAL; 1957 } 1958 1959 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2); 1960 mutex_unlock(&data->update_lock); 1961 return count; 1962 } 1963 1964 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, 1965 show_pwm_enable, store_pwm_enable, 0); 1966 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, 1967 show_pwm_enable, store_pwm_enable, 1); 1968 1969 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, 1970 char *buf) 1971 { 1972 int nr = (to_sensor_dev_attr(attr))->index; 1973 struct lm93_data *data = lm93_update_device(dev); 1974 u8 ctl4; 1975 1976 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 1977 return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4)); 1978 } 1979 1980 /* 1981 * helper function - must grab data->update_lock before calling 1982 * pwm is 0-1, indicating pwm1-pwm2 1983 * this disables smart tach for all tach channels bound to the given pwm 1984 */ 1985 static void lm93_disable_fan_smart_tach(struct i2c_client *client, 1986 struct lm93_data *data, int pwm) 1987 { 1988 int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM); 1989 int mask; 1990 1991 /* collapse the mapping into a mask of enable bits */ 1992 mapping = (mapping >> pwm) & 0x55; 1993 mask = mapping & 0x01; 1994 mask |= (mapping & 0x04) >> 1; 1995 mask |= (mapping & 0x10) >> 2; 1996 mask |= (mapping & 0x40) >> 3; 1997 1998 /* disable smart tach according to the mask */ 1999 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2); 2000 data->sfc2 &= ~mask; 2001 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2); 2002 } 2003 2004 static ssize_t store_pwm_freq(struct device *dev, 2005 struct device_attribute *attr, 2006 const char *buf, size_t count) 2007 { 2008 int nr = (to_sensor_dev_attr(attr))->index; 2009 struct lm93_data *data = dev_get_drvdata(dev); 2010 struct i2c_client *client = data->client; 2011 u8 ctl4; 2012 unsigned long val; 2013 int err; 2014 2015 err = kstrtoul(buf, 10, &val); 2016 if (err) 2017 return err; 2018 2019 mutex_lock(&data->update_lock); 2020 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 2021 ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val); 2022 data->block9[nr][LM93_PWM_CTL4] = ctl4; 2023 /* ctl4 == 0 -> 22.5KHz -> disable smart tach */ 2024 if (!ctl4) 2025 lm93_disable_fan_smart_tach(client, data, nr); 2026 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4); 2027 mutex_unlock(&data->update_lock); 2028 return count; 2029 } 2030 2031 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO, 2032 show_pwm_freq, store_pwm_freq, 0); 2033 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO, 2034 show_pwm_freq, store_pwm_freq, 1); 2035 2036 static ssize_t show_pwm_auto_channels(struct device *dev, 2037 struct device_attribute *attr, char *buf) 2038 { 2039 int nr = (to_sensor_dev_attr(attr))->index; 2040 struct lm93_data *data = lm93_update_device(dev); 2041 return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]); 2042 } 2043 2044 static ssize_t store_pwm_auto_channels(struct device *dev, 2045 struct device_attribute *attr, 2046 const char *buf, size_t count) 2047 { 2048 int nr = (to_sensor_dev_attr(attr))->index; 2049 struct lm93_data *data = dev_get_drvdata(dev); 2050 struct i2c_client *client = data->client; 2051 unsigned long val; 2052 int err; 2053 2054 err = kstrtoul(buf, 10, &val); 2055 if (err) 2056 return err; 2057 2058 mutex_lock(&data->update_lock); 2059 data->block9[nr][LM93_PWM_CTL1] = clamp_val(val, 0, 255); 2060 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1), 2061 data->block9[nr][LM93_PWM_CTL1]); 2062 mutex_unlock(&data->update_lock); 2063 return count; 2064 } 2065 2066 static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO, 2067 show_pwm_auto_channels, store_pwm_auto_channels, 0); 2068 static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO, 2069 show_pwm_auto_channels, store_pwm_auto_channels, 1); 2070 2071 static ssize_t show_pwm_auto_spinup_min(struct device *dev, 2072 struct device_attribute *attr, char *buf) 2073 { 2074 int nr = (to_sensor_dev_attr(attr))->index; 2075 struct lm93_data *data = lm93_update_device(dev); 2076 u8 ctl3, ctl4; 2077 2078 ctl3 = data->block9[nr][LM93_PWM_CTL3]; 2079 ctl4 = data->block9[nr][LM93_PWM_CTL4]; 2080 return sprintf(buf, "%d\n", 2081 LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ? 2082 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ)); 2083 } 2084 2085 static ssize_t store_pwm_auto_spinup_min(struct device *dev, 2086 struct device_attribute *attr, 2087 const char *buf, size_t count) 2088 { 2089 int nr = (to_sensor_dev_attr(attr))->index; 2090 struct lm93_data *data = dev_get_drvdata(dev); 2091 struct i2c_client *client = data->client; 2092 u8 ctl3, ctl4; 2093 unsigned long val; 2094 int err; 2095 2096 err = kstrtoul(buf, 10, &val); 2097 if (err) 2098 return err; 2099 2100 mutex_lock(&data->update_lock); 2101 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3)); 2102 ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4)); 2103 ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ? 2104 LM93_PWM_MAP_LO_FREQ : 2105 LM93_PWM_MAP_HI_FREQ); 2106 data->block9[nr][LM93_PWM_CTL3] = ctl3; 2107 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3); 2108 mutex_unlock(&data->update_lock); 2109 return count; 2110 } 2111 2112 static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO, 2113 show_pwm_auto_spinup_min, 2114 store_pwm_auto_spinup_min, 0); 2115 static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO, 2116 show_pwm_auto_spinup_min, 2117 store_pwm_auto_spinup_min, 1); 2118 2119 static ssize_t show_pwm_auto_spinup_time(struct device *dev, 2120 struct device_attribute *attr, char *buf) 2121 { 2122 int nr = (to_sensor_dev_attr(attr))->index; 2123 struct lm93_data *data = lm93_update_device(dev); 2124 return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG( 2125 data->block9[nr][LM93_PWM_CTL3])); 2126 } 2127 2128 static ssize_t store_pwm_auto_spinup_time(struct device *dev, 2129 struct device_attribute *attr, 2130 const char *buf, size_t count) 2131 { 2132 int nr = (to_sensor_dev_attr(attr))->index; 2133 struct lm93_data *data = dev_get_drvdata(dev); 2134 struct i2c_client *client = data->client; 2135 u8 ctl3; 2136 unsigned long val; 2137 int err; 2138 2139 err = kstrtoul(buf, 10, &val); 2140 if (err) 2141 return err; 2142 2143 mutex_lock(&data->update_lock); 2144 ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3)); 2145 ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0); 2146 data->block9[nr][LM93_PWM_CTL3] = ctl3; 2147 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3); 2148 mutex_unlock(&data->update_lock); 2149 return count; 2150 } 2151 2152 static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO, 2153 show_pwm_auto_spinup_time, 2154 store_pwm_auto_spinup_time, 0); 2155 static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO, 2156 show_pwm_auto_spinup_time, 2157 store_pwm_auto_spinup_time, 1); 2158 2159 static ssize_t show_pwm_auto_prochot_ramp(struct device *dev, 2160 struct device_attribute *attr, char *buf) 2161 { 2162 struct lm93_data *data = lm93_update_device(dev); 2163 return sprintf(buf, "%d\n", 2164 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f)); 2165 } 2166 2167 static ssize_t store_pwm_auto_prochot_ramp(struct device *dev, 2168 struct device_attribute *attr, 2169 const char *buf, size_t count) 2170 { 2171 struct lm93_data *data = dev_get_drvdata(dev); 2172 struct i2c_client *client = data->client; 2173 u8 ramp; 2174 unsigned long val; 2175 int err; 2176 2177 err = kstrtoul(buf, 10, &val); 2178 if (err) 2179 return err; 2180 2181 mutex_lock(&data->update_lock); 2182 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL); 2183 ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0); 2184 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp); 2185 mutex_unlock(&data->update_lock); 2186 return count; 2187 } 2188 2189 static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR, 2190 show_pwm_auto_prochot_ramp, 2191 store_pwm_auto_prochot_ramp); 2192 2193 static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev, 2194 struct device_attribute *attr, char *buf) 2195 { 2196 struct lm93_data *data = lm93_update_device(dev); 2197 return sprintf(buf, "%d\n", 2198 LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f)); 2199 } 2200 2201 static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev, 2202 struct device_attribute *attr, 2203 const char *buf, size_t count) 2204 { 2205 struct lm93_data *data = dev_get_drvdata(dev); 2206 struct i2c_client *client = data->client; 2207 u8 ramp; 2208 unsigned long val; 2209 int err; 2210 2211 err = kstrtoul(buf, 10, &val); 2212 if (err) 2213 return err; 2214 2215 mutex_lock(&data->update_lock); 2216 ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL); 2217 ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f); 2218 lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp); 2219 mutex_unlock(&data->update_lock); 2220 return 0; 2221 } 2222 2223 static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR, 2224 show_pwm_auto_vrdhot_ramp, 2225 store_pwm_auto_vrdhot_ramp); 2226 2227 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, 2228 char *buf) 2229 { 2230 int nr = (to_sensor_dev_attr(attr))->index; 2231 struct lm93_data *data = lm93_update_device(dev); 2232 return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr])); 2233 } 2234 2235 static SENSOR_DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL, 0); 2236 static SENSOR_DEVICE_ATTR(cpu1_vid, S_IRUGO, show_vid, NULL, 1); 2237 2238 static ssize_t show_prochot(struct device *dev, struct device_attribute *attr, 2239 char *buf) 2240 { 2241 int nr = (to_sensor_dev_attr(attr))->index; 2242 struct lm93_data *data = lm93_update_device(dev); 2243 return sprintf(buf, "%d\n", data->block4[nr].cur); 2244 } 2245 2246 static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0); 2247 static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1); 2248 2249 static ssize_t show_prochot_avg(struct device *dev, 2250 struct device_attribute *attr, char *buf) 2251 { 2252 int nr = (to_sensor_dev_attr(attr))->index; 2253 struct lm93_data *data = lm93_update_device(dev); 2254 return sprintf(buf, "%d\n", data->block4[nr].avg); 2255 } 2256 2257 static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0); 2258 static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1); 2259 2260 static ssize_t show_prochot_max(struct device *dev, 2261 struct device_attribute *attr, char *buf) 2262 { 2263 int nr = (to_sensor_dev_attr(attr))->index; 2264 struct lm93_data *data = lm93_update_device(dev); 2265 return sprintf(buf, "%d\n", data->prochot_max[nr]); 2266 } 2267 2268 static ssize_t store_prochot_max(struct device *dev, 2269 struct device_attribute *attr, 2270 const char *buf, size_t count) 2271 { 2272 int nr = (to_sensor_dev_attr(attr))->index; 2273 struct lm93_data *data = dev_get_drvdata(dev); 2274 struct i2c_client *client = data->client; 2275 unsigned long val; 2276 int err; 2277 2278 err = kstrtoul(buf, 10, &val); 2279 if (err) 2280 return err; 2281 2282 mutex_lock(&data->update_lock); 2283 data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val); 2284 lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr), 2285 data->prochot_max[nr]); 2286 mutex_unlock(&data->update_lock); 2287 return count; 2288 } 2289 2290 static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO, 2291 show_prochot_max, store_prochot_max, 0); 2292 static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO, 2293 show_prochot_max, store_prochot_max, 1); 2294 2295 static const u8 prochot_override_mask[] = { 0x80, 0x40 }; 2296 2297 static ssize_t show_prochot_override(struct device *dev, 2298 struct device_attribute *attr, char *buf) 2299 { 2300 int nr = (to_sensor_dev_attr(attr))->index; 2301 struct lm93_data *data = lm93_update_device(dev); 2302 return sprintf(buf, "%d\n", 2303 (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0); 2304 } 2305 2306 static ssize_t store_prochot_override(struct device *dev, 2307 struct device_attribute *attr, 2308 const char *buf, size_t count) 2309 { 2310 int nr = (to_sensor_dev_attr(attr))->index; 2311 struct lm93_data *data = dev_get_drvdata(dev); 2312 struct i2c_client *client = data->client; 2313 unsigned long val; 2314 int err; 2315 2316 err = kstrtoul(buf, 10, &val); 2317 if (err) 2318 return err; 2319 2320 mutex_lock(&data->update_lock); 2321 if (val) 2322 data->prochot_override |= prochot_override_mask[nr]; 2323 else 2324 data->prochot_override &= (~prochot_override_mask[nr]); 2325 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE, 2326 data->prochot_override); 2327 mutex_unlock(&data->update_lock); 2328 return count; 2329 } 2330 2331 static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO, 2332 show_prochot_override, store_prochot_override, 0); 2333 static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO, 2334 show_prochot_override, store_prochot_override, 1); 2335 2336 static ssize_t show_prochot_interval(struct device *dev, 2337 struct device_attribute *attr, char *buf) 2338 { 2339 int nr = (to_sensor_dev_attr(attr))->index; 2340 struct lm93_data *data = lm93_update_device(dev); 2341 u8 tmp; 2342 if (nr == 1) 2343 tmp = (data->prochot_interval & 0xf0) >> 4; 2344 else 2345 tmp = data->prochot_interval & 0x0f; 2346 return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp)); 2347 } 2348 2349 static ssize_t store_prochot_interval(struct device *dev, 2350 struct device_attribute *attr, 2351 const char *buf, size_t count) 2352 { 2353 int nr = (to_sensor_dev_attr(attr))->index; 2354 struct lm93_data *data = dev_get_drvdata(dev); 2355 struct i2c_client *client = data->client; 2356 u8 tmp; 2357 unsigned long val; 2358 int err; 2359 2360 err = kstrtoul(buf, 10, &val); 2361 if (err) 2362 return err; 2363 2364 mutex_lock(&data->update_lock); 2365 tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL); 2366 if (nr == 1) 2367 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4); 2368 else 2369 tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val); 2370 data->prochot_interval = tmp; 2371 lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp); 2372 mutex_unlock(&data->update_lock); 2373 return count; 2374 } 2375 2376 static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO, 2377 show_prochot_interval, store_prochot_interval, 0); 2378 static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO, 2379 show_prochot_interval, store_prochot_interval, 1); 2380 2381 static ssize_t show_prochot_override_duty_cycle(struct device *dev, 2382 struct device_attribute *attr, 2383 char *buf) 2384 { 2385 struct lm93_data *data = lm93_update_device(dev); 2386 return sprintf(buf, "%d\n", data->prochot_override & 0x0f); 2387 } 2388 2389 static ssize_t store_prochot_override_duty_cycle(struct device *dev, 2390 struct device_attribute *attr, 2391 const char *buf, size_t count) 2392 { 2393 struct lm93_data *data = dev_get_drvdata(dev); 2394 struct i2c_client *client = data->client; 2395 unsigned long val; 2396 int err; 2397 2398 err = kstrtoul(buf, 10, &val); 2399 if (err) 2400 return err; 2401 2402 mutex_lock(&data->update_lock); 2403 data->prochot_override = (data->prochot_override & 0xf0) | 2404 clamp_val(val, 0, 15); 2405 lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE, 2406 data->prochot_override); 2407 mutex_unlock(&data->update_lock); 2408 return count; 2409 } 2410 2411 static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR, 2412 show_prochot_override_duty_cycle, 2413 store_prochot_override_duty_cycle); 2414 2415 static ssize_t show_prochot_short(struct device *dev, 2416 struct device_attribute *attr, char *buf) 2417 { 2418 struct lm93_data *data = lm93_update_device(dev); 2419 return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0); 2420 } 2421 2422 static ssize_t store_prochot_short(struct device *dev, 2423 struct device_attribute *attr, 2424 const char *buf, size_t count) 2425 { 2426 struct lm93_data *data = dev_get_drvdata(dev); 2427 struct i2c_client *client = data->client; 2428 unsigned long val; 2429 int err; 2430 2431 err = kstrtoul(buf, 10, &val); 2432 if (err) 2433 return err; 2434 2435 mutex_lock(&data->update_lock); 2436 if (val) 2437 data->config |= 0x10; 2438 else 2439 data->config &= ~0x10; 2440 lm93_write_byte(client, LM93_REG_CONFIG, data->config); 2441 mutex_unlock(&data->update_lock); 2442 return count; 2443 } 2444 2445 static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR, 2446 show_prochot_short, store_prochot_short); 2447 2448 static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr, 2449 char *buf) 2450 { 2451 int nr = (to_sensor_dev_attr(attr))->index; 2452 struct lm93_data *data = lm93_update_device(dev); 2453 return sprintf(buf, "%d\n", 2454 data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0); 2455 } 2456 2457 static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0); 2458 static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1); 2459 2460 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr, 2461 char *buf) 2462 { 2463 struct lm93_data *data = lm93_update_device(dev); 2464 return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi)); 2465 } 2466 2467 static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL); 2468 2469 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, 2470 char *buf) 2471 { 2472 struct lm93_data *data = lm93_update_device(dev); 2473 return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1)); 2474 } 2475 2476 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); 2477 2478 static struct attribute *lm93_attrs[] = { 2479 &sensor_dev_attr_in1_input.dev_attr.attr, 2480 &sensor_dev_attr_in2_input.dev_attr.attr, 2481 &sensor_dev_attr_in3_input.dev_attr.attr, 2482 &sensor_dev_attr_in4_input.dev_attr.attr, 2483 &sensor_dev_attr_in5_input.dev_attr.attr, 2484 &sensor_dev_attr_in6_input.dev_attr.attr, 2485 &sensor_dev_attr_in7_input.dev_attr.attr, 2486 &sensor_dev_attr_in8_input.dev_attr.attr, 2487 &sensor_dev_attr_in9_input.dev_attr.attr, 2488 &sensor_dev_attr_in10_input.dev_attr.attr, 2489 &sensor_dev_attr_in11_input.dev_attr.attr, 2490 &sensor_dev_attr_in12_input.dev_attr.attr, 2491 &sensor_dev_attr_in13_input.dev_attr.attr, 2492 &sensor_dev_attr_in14_input.dev_attr.attr, 2493 &sensor_dev_attr_in15_input.dev_attr.attr, 2494 &sensor_dev_attr_in16_input.dev_attr.attr, 2495 &sensor_dev_attr_in1_min.dev_attr.attr, 2496 &sensor_dev_attr_in2_min.dev_attr.attr, 2497 &sensor_dev_attr_in3_min.dev_attr.attr, 2498 &sensor_dev_attr_in4_min.dev_attr.attr, 2499 &sensor_dev_attr_in5_min.dev_attr.attr, 2500 &sensor_dev_attr_in6_min.dev_attr.attr, 2501 &sensor_dev_attr_in7_min.dev_attr.attr, 2502 &sensor_dev_attr_in8_min.dev_attr.attr, 2503 &sensor_dev_attr_in9_min.dev_attr.attr, 2504 &sensor_dev_attr_in10_min.dev_attr.attr, 2505 &sensor_dev_attr_in11_min.dev_attr.attr, 2506 &sensor_dev_attr_in12_min.dev_attr.attr, 2507 &sensor_dev_attr_in13_min.dev_attr.attr, 2508 &sensor_dev_attr_in14_min.dev_attr.attr, 2509 &sensor_dev_attr_in15_min.dev_attr.attr, 2510 &sensor_dev_attr_in16_min.dev_attr.attr, 2511 &sensor_dev_attr_in1_max.dev_attr.attr, 2512 &sensor_dev_attr_in2_max.dev_attr.attr, 2513 &sensor_dev_attr_in3_max.dev_attr.attr, 2514 &sensor_dev_attr_in4_max.dev_attr.attr, 2515 &sensor_dev_attr_in5_max.dev_attr.attr, 2516 &sensor_dev_attr_in6_max.dev_attr.attr, 2517 &sensor_dev_attr_in7_max.dev_attr.attr, 2518 &sensor_dev_attr_in8_max.dev_attr.attr, 2519 &sensor_dev_attr_in9_max.dev_attr.attr, 2520 &sensor_dev_attr_in10_max.dev_attr.attr, 2521 &sensor_dev_attr_in11_max.dev_attr.attr, 2522 &sensor_dev_attr_in12_max.dev_attr.attr, 2523 &sensor_dev_attr_in13_max.dev_attr.attr, 2524 &sensor_dev_attr_in14_max.dev_attr.attr, 2525 &sensor_dev_attr_in15_max.dev_attr.attr, 2526 &sensor_dev_attr_in16_max.dev_attr.attr, 2527 &sensor_dev_attr_temp1_input.dev_attr.attr, 2528 &sensor_dev_attr_temp2_input.dev_attr.attr, 2529 &sensor_dev_attr_temp3_input.dev_attr.attr, 2530 &sensor_dev_attr_temp1_min.dev_attr.attr, 2531 &sensor_dev_attr_temp2_min.dev_attr.attr, 2532 &sensor_dev_attr_temp3_min.dev_attr.attr, 2533 &sensor_dev_attr_temp1_max.dev_attr.attr, 2534 &sensor_dev_attr_temp2_max.dev_attr.attr, 2535 &sensor_dev_attr_temp3_max.dev_attr.attr, 2536 &sensor_dev_attr_temp1_auto_base.dev_attr.attr, 2537 &sensor_dev_attr_temp2_auto_base.dev_attr.attr, 2538 &sensor_dev_attr_temp3_auto_base.dev_attr.attr, 2539 &sensor_dev_attr_temp1_auto_boost.dev_attr.attr, 2540 &sensor_dev_attr_temp2_auto_boost.dev_attr.attr, 2541 &sensor_dev_attr_temp3_auto_boost.dev_attr.attr, 2542 &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr, 2543 &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr, 2544 &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr, 2545 &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr, 2546 &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr, 2547 &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr, 2548 &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr, 2549 &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr, 2550 &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr, 2551 &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr, 2552 &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr, 2553 &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr, 2554 &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr, 2555 &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr, 2556 &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr, 2557 &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr, 2558 &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr, 2559 &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr, 2560 &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr, 2561 &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr, 2562 &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr, 2563 &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr, 2564 &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr, 2565 &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr, 2566 &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr, 2567 &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr, 2568 &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr, 2569 &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr, 2570 &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr, 2571 &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr, 2572 &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr, 2573 &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr, 2574 &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr, 2575 &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr, 2576 &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr, 2577 &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr, 2578 &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr, 2579 &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr, 2580 &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr, 2581 &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr, 2582 &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr, 2583 &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr, 2584 &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr, 2585 &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr, 2586 &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr, 2587 &sensor_dev_attr_fan1_input.dev_attr.attr, 2588 &sensor_dev_attr_fan2_input.dev_attr.attr, 2589 &sensor_dev_attr_fan3_input.dev_attr.attr, 2590 &sensor_dev_attr_fan4_input.dev_attr.attr, 2591 &sensor_dev_attr_fan1_min.dev_attr.attr, 2592 &sensor_dev_attr_fan2_min.dev_attr.attr, 2593 &sensor_dev_attr_fan3_min.dev_attr.attr, 2594 &sensor_dev_attr_fan4_min.dev_attr.attr, 2595 &sensor_dev_attr_fan1_smart_tach.dev_attr.attr, 2596 &sensor_dev_attr_fan2_smart_tach.dev_attr.attr, 2597 &sensor_dev_attr_fan3_smart_tach.dev_attr.attr, 2598 &sensor_dev_attr_fan4_smart_tach.dev_attr.attr, 2599 &sensor_dev_attr_pwm1.dev_attr.attr, 2600 &sensor_dev_attr_pwm2.dev_attr.attr, 2601 &sensor_dev_attr_pwm1_enable.dev_attr.attr, 2602 &sensor_dev_attr_pwm2_enable.dev_attr.attr, 2603 &sensor_dev_attr_pwm1_freq.dev_attr.attr, 2604 &sensor_dev_attr_pwm2_freq.dev_attr.attr, 2605 &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr, 2606 &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr, 2607 &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr, 2608 &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr, 2609 &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr, 2610 &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr, 2611 &dev_attr_pwm_auto_prochot_ramp.attr, 2612 &dev_attr_pwm_auto_vrdhot_ramp.attr, 2613 &sensor_dev_attr_cpu0_vid.dev_attr.attr, 2614 &sensor_dev_attr_cpu1_vid.dev_attr.attr, 2615 &sensor_dev_attr_prochot1.dev_attr.attr, 2616 &sensor_dev_attr_prochot2.dev_attr.attr, 2617 &sensor_dev_attr_prochot1_avg.dev_attr.attr, 2618 &sensor_dev_attr_prochot2_avg.dev_attr.attr, 2619 &sensor_dev_attr_prochot1_max.dev_attr.attr, 2620 &sensor_dev_attr_prochot2_max.dev_attr.attr, 2621 &sensor_dev_attr_prochot1_override.dev_attr.attr, 2622 &sensor_dev_attr_prochot2_override.dev_attr.attr, 2623 &sensor_dev_attr_prochot1_interval.dev_attr.attr, 2624 &sensor_dev_attr_prochot2_interval.dev_attr.attr, 2625 &dev_attr_prochot_override_duty_cycle.attr, 2626 &dev_attr_prochot_short.attr, 2627 &sensor_dev_attr_vrdhot1.dev_attr.attr, 2628 &sensor_dev_attr_vrdhot2.dev_attr.attr, 2629 &dev_attr_gpio.attr, 2630 &dev_attr_alarms.attr, 2631 NULL 2632 }; 2633 2634 ATTRIBUTE_GROUPS(lm93); 2635 2636 static void lm93_init_client(struct i2c_client *client) 2637 { 2638 int i; 2639 u8 reg; 2640 2641 /* configure VID pin input thresholds */ 2642 reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL); 2643 lm93_write_byte(client, LM93_REG_GPI_VID_CTL, 2644 reg | (vid_agtl ? 0x03 : 0x00)); 2645 2646 if (init) { 2647 /* enable #ALERT pin */ 2648 reg = lm93_read_byte(client, LM93_REG_CONFIG); 2649 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08); 2650 2651 /* enable ASF mode for BMC status registers */ 2652 reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL); 2653 lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02); 2654 2655 /* set sleep state to S0 */ 2656 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0); 2657 2658 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */ 2659 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK); 2660 reg &= ~0x03; 2661 reg &= ~(vccp_limit_type[0] ? 0x10 : 0); 2662 reg &= ~(vccp_limit_type[1] ? 0x20 : 0); 2663 lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg); 2664 } 2665 2666 /* start monitoring */ 2667 reg = lm93_read_byte(client, LM93_REG_CONFIG); 2668 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01); 2669 2670 /* spin until ready */ 2671 for (i = 0; i < 20; i++) { 2672 msleep(10); 2673 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80) 2674 return; 2675 } 2676 2677 dev_warn(&client->dev, 2678 "timed out waiting for sensor chip to signal ready!\n"); 2679 } 2680 2681 /* Return 0 if detection is successful, -ENODEV otherwise */ 2682 static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info) 2683 { 2684 struct i2c_adapter *adapter = client->adapter; 2685 int mfr, ver; 2686 const char *name; 2687 2688 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN)) 2689 return -ENODEV; 2690 2691 /* detection */ 2692 mfr = lm93_read_byte(client, LM93_REG_MFR_ID); 2693 if (mfr != 0x01) { 2694 dev_dbg(&adapter->dev, 2695 "detect failed, bad manufacturer id 0x%02x!\n", mfr); 2696 return -ENODEV; 2697 } 2698 2699 ver = lm93_read_byte(client, LM93_REG_VER); 2700 switch (ver) { 2701 case LM93_MFR_ID: 2702 case LM93_MFR_ID_PROTOTYPE: 2703 name = "lm93"; 2704 break; 2705 case LM94_MFR_ID_2: 2706 case LM94_MFR_ID: 2707 case LM94_MFR_ID_PROTOTYPE: 2708 name = "lm94"; 2709 break; 2710 default: 2711 dev_dbg(&adapter->dev, 2712 "detect failed, bad version id 0x%02x!\n", ver); 2713 return -ENODEV; 2714 } 2715 2716 strlcpy(info->type, name, I2C_NAME_SIZE); 2717 dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n", 2718 client->name, i2c_adapter_id(client->adapter), 2719 client->addr); 2720 2721 return 0; 2722 } 2723 2724 static int lm93_probe(struct i2c_client *client, 2725 const struct i2c_device_id *id) 2726 { 2727 struct device *dev = &client->dev; 2728 struct lm93_data *data; 2729 struct device *hwmon_dev; 2730 int func; 2731 void (*update)(struct lm93_data *, struct i2c_client *); 2732 2733 /* choose update routine based on bus capabilities */ 2734 func = i2c_get_functionality(client->adapter); 2735 if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) && 2736 (!disable_block)) { 2737 dev_dbg(dev, "using SMBus block data transactions\n"); 2738 update = lm93_update_client_full; 2739 } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) { 2740 dev_dbg(dev, "disabled SMBus block data transactions\n"); 2741 update = lm93_update_client_min; 2742 } else { 2743 dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n"); 2744 return -ENODEV; 2745 } 2746 2747 data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL); 2748 if (!data) 2749 return -ENOMEM; 2750 2751 /* housekeeping */ 2752 data->client = client; 2753 data->update = update; 2754 mutex_init(&data->update_lock); 2755 2756 /* initialize the chip */ 2757 lm93_init_client(client); 2758 2759 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, 2760 data, 2761 lm93_groups); 2762 return PTR_ERR_OR_ZERO(hwmon_dev); 2763 } 2764 2765 static const struct i2c_device_id lm93_id[] = { 2766 { "lm93", 0 }, 2767 { "lm94", 0 }, 2768 { } 2769 }; 2770 MODULE_DEVICE_TABLE(i2c, lm93_id); 2771 2772 static struct i2c_driver lm93_driver = { 2773 .class = I2C_CLASS_HWMON, 2774 .driver = { 2775 .name = "lm93", 2776 }, 2777 .probe = lm93_probe, 2778 .id_table = lm93_id, 2779 .detect = lm93_detect, 2780 .address_list = normal_i2c, 2781 }; 2782 2783 module_i2c_driver(lm93_driver); 2784 2785 MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, " 2786 "Hans J. Koch <hjk@hansjkoch.de>"); 2787 MODULE_DESCRIPTION("LM93 driver"); 2788 MODULE_LICENSE("GPL"); 2789