2 * lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
4 * Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>
5 * Copyright (c) 2004 Utilitek Systems, Inc.
7 * derived in part from lm78.c:
8 * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
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>
14 * derived in part from w83l785ts.c:
15 * Copyright (c) 2003-2004 Jean Delvare <jdelvare@suse.de>
17 * Ported to Linux 2.6 by Eric J. Bowersox <ericb@aspsys.com>
18 * Copyright (c) 2005 Aspen Systems, Inc.
20 * Adapted to 2.6.20 by Carsten Emde <cbe@osadl.org>
21 * Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab
23 * Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>
24 * Copyright (c) 2007 Hans J. Koch, Linutronix GmbH
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.
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.
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.
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>
52 /* LM93 REGISTER ADDRESSES */
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
61 /* alarm values start here */
62 #define LM93_REG_HOST_ERROR_1 0x48
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)
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)
74 /* temp[1-4]_auto_boost (nr => 0-3) */
75 #define LM93_REG_BOOST(nr) (0x80 + (nr))
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))
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)
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
93 /* GPIO input state */
94 #define LM93_REG_GPI 0x6b
96 /* vid inputs: vid1-vid2 (nr => 0-1) */
97 #define LM93_REG_VID(nr) (0x6c + (nr))
99 /* vccp1 & vccp2: VID relative inputs (nr => 0-1) */
100 #define LM93_REG_VCCP_LIMIT_OFF(nr) (0xb2 + (nr))
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)
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)
112 /* prochot_override & prochot_interval */
113 #define LM93_REG_PROCHOT_OVERRIDE 0xc6
114 #define LM93_REG_PROCHOT_INTERVAL 0xc7
116 /* temp[1-4]_auto_base (nr => 0-3) */
117 #define LM93_REG_TEMP_BASE(nr) (0xd0 + (nr))
119 /* temp[1-4]_auto_offsets (step => 0-11) */
120 #define LM93_REG_TEMP_OFFSET(step) (0xd4 + (step))
122 /* #PROCHOT & #VRDHOT PWM ramp control */
123 #define LM93_REG_PWM_RAMP_CTL 0xbf
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
132 #define LM93_REG_GPI_ERR_MASK 0xec
133 #define LM93_REG_MISC_ERR_MASK 0xed
135 /* LM93 REGISTER VALUES */
136 #define LM93_MFR_ID 0x73
137 #define LM93_MFR_ID_PROTOTYPE 0x72
139 /* LM94 REGISTER VALUES */
140 #define LM94_MFR_ID_2 0x7a
141 #define LM94_MFR_ID 0x79
142 #define LM94_MFR_ID_PROTOTYPE 0x78
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)
150 /* Addresses to scan */
151 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
153 /* Insmod parameters */
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.");
161 module_param(init, bool, 0);
162 MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
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.");
169 module_param(vid_agtl, int, 0);
170 MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
173 static struct i2c_driver lm93_driver;
175 /* LM93 BLOCK READ COMMANDS */
176 static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {
192 * ALARMS: SYSCTL format described further below
193 * REG: 64 bits in 8 registers, as immediately below
200 u8 p1_prochot_status;
201 u8 p2_prochot_status;
207 * Client-specific data
210 struct i2c_client *client;
212 struct mutex update_lock;
213 unsigned long last_updated; /* In jiffies */
215 /* client update function */
216 void (*update)(struct lm93_data *, struct i2c_client *);
218 char valid; /* !=0 if following fields are valid */
220 /* register values, arranged by block read groups */
221 struct block1_t block1;
224 * temp1 - temp4: unfiltered readings
225 * temp1 - temp2: filtered readings
229 /* vin1 - vin16: readings */
232 /* prochot1 - prochot2: readings */
238 /* fan counts 1-4 => 14-bits, LE, *left* justified */
241 /* block6 has a lot of data we don't need */
247 /* vin1 - vin16: low and high limits */
253 /* fan count limits 1-4 => same format as block5 */
256 /* pwm control registers (2 pwms, 4 regs) */
259 /* auto/pwm base temp and offset temp registers */
265 /* master config register */
268 /* VID1 & VID2 => register format, 6-bits, right justified */
271 /* prochot1 - prochot2: limits */
274 /* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */
277 /* GPIO input state (register format, i.e. inverted) */
280 /* #PROCHOT override (register format) */
283 /* #PROCHOT intervals (register format) */
286 /* Fan Boost Temperatures (register format) */
289 /* Fan Boost Hysteresis (register format) */
292 /* Temperature Zone Min. PWM & Hysteresis (register format) */
293 u8 auto_pwm_min_hyst[2];
295 /* #PROCHOT & #VRDHOT PWM Ramp Control */
298 /* miscellaneous setup regs */
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.
313 * REG: 6-bits, right justified, *always* using Intel VRM/VRD 10
315 static int LM93_VID_FROM_REG(u8 reg)
317 return vid_from_reg((reg & 0x3f), 100);
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,
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,
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,
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,
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,
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,
355 static unsigned LM93_IN_FROM_REG(int nr, u8 reg)
357 const long uv_max = lm93_vin_val_max[nr] * 1000;
358 const long uv_min = lm93_vin_val_min[nr] * 1000;
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];
364 return (slope * reg + intercept + 500) / 1000;
368 * IN: mV, limits determined by channel nr
369 * REG: scaling determined by channel nr
371 static u8 LM93_IN_TO_REG(int nr, unsigned val)
374 const long mv = clamp_val(val,
375 lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
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;
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];
387 u8 result = ((uv - intercept + (slope/2)) / slope);
388 result = clamp_val(result,
389 lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
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)
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;
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))
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)
410 static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)
412 long uv_offset = vid * 1000 - val * 10000;
414 uv_offset = clamp_val(uv_offset, 12500, 200000);
415 return (u8)((uv_offset / 12500 - 1) << 4);
417 uv_offset = clamp_val(uv_offset, -400000, -25000);
418 return (u8)((uv_offset / -25000 - 1) << 0);
423 * TEMP: 1/1000 degrees C (-128C to +127C)
424 * REG: 1C/bit, two's complement
426 static int LM93_TEMP_FROM_REG(u8 reg)
428 return (s8)reg * 1000;
431 #define LM93_TEMP_MIN (-128000)
432 #define LM93_TEMP_MAX (127000)
435 * TEMP: 1/1000 degrees C (-128C to +127C)
436 * REG: 1C/bit, two's complement
438 static u8 LM93_TEMP_TO_REG(long temp)
440 int ntemp = clamp_val(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
441 ntemp += (ntemp < 0 ? -500 : 500);
442 return (u8)(ntemp / 1000);
445 /* Determine 4-bit temperature offset resolution */
446 static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)
448 /* mode: 0 => 1C/bit, nonzero => 0.5C/bit */
449 return sfc2 & (nr < 2 ? 0x10 : 0x20);
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
457 static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)
459 return (reg & 0x0f) * (mode ? 5 : 10);
462 #define LM93_TEMP_OFFSET_MIN (0)
463 #define LM93_TEMP_OFFSET_MAX0 (150)
464 #define LM93_TEMP_OFFSET_MAX1 (75)
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
471 static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
473 int factor = mode ? 5 : 10;
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);
481 static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)
483 /* temp1-temp2 (nr=0,1) use lower nibble */
485 return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);
487 /* temp3-temp4 (nr=2,3) use upper nibble */
489 return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);
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)
497 static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)
499 u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);
501 /* temp1-temp2 (nr=0,1) use lower nibble */
503 return (old & 0xf0) | (new & 0x0f);
505 /* temp3-temp4 (nr=2,3) use upper nibble */
507 return (new << 4 & 0xf0) | (old & 0x0f);
510 static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,
517 reg = data->boost_hyst[0] & 0x0f;
520 reg = data->boost_hyst[0] >> 4 & 0x0f;
523 reg = data->boost_hyst[1] & 0x0f;
527 reg = data->boost_hyst[1] >> 4 & 0x0f;
531 return LM93_TEMP_FROM_REG(data->boost[nr]) -
532 LM93_TEMP_OFFSET_FROM_REG(reg, mode);
535 static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,
538 u8 reg = LM93_TEMP_OFFSET_TO_REG(
539 (LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);
543 reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);
546 reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);
549 reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);
553 reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);
561 * PWM: 0-255 per sensors documentation
562 * REG: 0-13 as mapped below... right justified
564 enum pwm_freq { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ };
566 static int lm93_pwm_map[2][16] = {
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 */
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 */
589 static int LM93_PWM_FROM_REG(u8 reg, enum pwm_freq freq)
591 return lm93_pwm_map[freq][reg & 0x0f];
594 /* round up to nearest match */
595 static u8 LM93_PWM_TO_REG(int pwm, enum pwm_freq freq)
598 for (i = 0; i < 13; i++)
599 if (pwm <= lm93_pwm_map[freq][i])
602 /* can fall through with i==13 */
606 static int LM93_FAN_FROM_REG(u16 regs)
608 const u16 count = le16_to_cpu(regs) >> 2;
609 return count == 0 ? -1 : count == 0x3fff ? 0 : 1350000 / count;
613 * RPM: (82.5 to 1350000)
614 * REG: 14-bits, LE, *left* justified
616 static u16 LM93_FAN_TO_REG(long rpm)
623 rpm = clamp_val(rpm, 1, 1000000);
624 count = clamp_val((1350000 + rpm) / rpm, 1, 0x3ffe);
628 return cpu_to_le16(regs);
633 * REG: 0-7 as mapped below
635 static int lm93_pwm_freq_map[8] = {
636 22500, 96, 84, 72, 60, 48, 36, 12
639 static int LM93_PWM_FREQ_FROM_REG(u8 reg)
641 return lm93_pwm_freq_map[reg & 0x07];
644 /* round up to nearest match */
645 static u8 LM93_PWM_FREQ_TO_REG(int freq)
648 for (i = 7; i > 0; i--)
649 if (freq <= lm93_pwm_freq_map[i])
652 /* can fall through with i==0 */
657 * TIME: 1/100 seconds
658 * REG: 0-7 as mapped below
660 static int lm93_spinup_time_map[8] = {
661 0, 10, 25, 40, 70, 100, 200, 400,
664 static int LM93_SPINUP_TIME_FROM_REG(u8 reg)
666 return lm93_spinup_time_map[reg >> 5 & 0x07];
669 /* round up to nearest match */
670 static u8 LM93_SPINUP_TIME_TO_REG(int time)
673 for (i = 0; i < 7; i++)
674 if (time <= lm93_spinup_time_map[i])
677 /* can fall through with i==8 */
681 #define LM93_RAMP_MIN 0
682 #define LM93_RAMP_MAX 75
684 static int LM93_RAMP_FROM_REG(u8 reg)
686 return (reg & 0x0f) * 5;
690 * RAMP: 1/100 seconds
691 * REG: 50mS/bit 4-bits right justified
693 static u8 LM93_RAMP_TO_REG(int ramp)
695 ramp = clamp_val(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
696 return (u8)((ramp + 2) / 5);
700 * PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
703 static u8 LM93_PROCHOT_TO_REG(long prochot)
705 prochot = clamp_val(prochot, 0, 255);
710 * PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
711 * REG: 0-9 as mapped below
713 static int lm93_interval_map[10] = {
714 73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
717 static int LM93_INTERVAL_FROM_REG(u8 reg)
719 return lm93_interval_map[reg & 0x0f];
722 /* round up to nearest match */
723 static u8 LM93_INTERVAL_TO_REG(long interval)
726 for (i = 0; i < 9; i++)
727 if (interval <= lm93_interval_map[i])
730 /* can fall through with i==9 */
735 * GPIO: 0-255, GPIO0 is LSB
738 static unsigned LM93_GPI_FROM_REG(u8 reg)
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.
748 * Especially note that the #VRD_HOT alarms are missing because we provide
749 * that information as values in another sysfs file.
751 * If libsensors is extended to support 64 bit values, this could be revisited.
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
785 static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)
788 result = b1.host_status_2 & 0x3f;
790 if (vccp_limit_type[0])
791 result |= (b1.host_status_4 & 0x10) << 2;
793 result |= b1.host_status_2 & 0x40;
795 if (vccp_limit_type[1])
796 result |= (b1.host_status_4 & 0x20) << 2;
798 result |= b1.host_status_2 & 0x80;
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;
809 #define MAX_RETRIES 5
811 static u8 lm93_read_byte(struct i2c_client *client, u8 reg)
815 /* retry in case of read errors */
816 for (i = 1; i <= MAX_RETRIES; i++) {
817 value = i2c_smbus_read_byte_data(client, reg);
821 dev_warn(&client->dev,
822 "lm93: read byte data failed, address 0x%02x.\n",
829 /* <TODO> what to return in case of error? */
830 dev_err(&client->dev, "lm93: All read byte retries failed!!\n");
834 static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
838 /* <TODO> how to handle write errors? */
839 result = i2c_smbus_write_byte_data(client, reg, value);
842 dev_warn(&client->dev,
843 "lm93: write byte data failed, 0x%02x at address 0x%02x.\n",
849 static u16 lm93_read_word(struct i2c_client *client, u8 reg)
853 /* retry in case of read errors */
854 for (i = 1; i <= MAX_RETRIES; i++) {
855 value = i2c_smbus_read_word_data(client, reg);
859 dev_warn(&client->dev,
860 "lm93: read word data failed, address 0x%02x.\n",
867 /* <TODO> what to return in case of error? */
868 dev_err(&client->dev, "lm93: All read word retries failed!!\n");
872 static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
876 /* <TODO> how to handle write errors? */
877 result = i2c_smbus_write_word_data(client, reg, value);
880 dev_warn(&client->dev,
881 "lm93: write word data failed, 0x%04x at address 0x%02x.\n",
887 static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
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)
894 static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
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);
902 if (result == lm93_block_read_cmds[fbn].len) {
905 dev_warn(&client->dev,
906 "lm93: block read data failed, command 0x%02x.\n",
907 lm93_block_read_cmds[fbn].cmd);
912 if (result == lm93_block_read_cmds[fbn].len) {
913 memcpy(values, lm93_block_buffer,
914 lm93_block_read_cmds[fbn].len);
916 /* <TODO> what to do in case of error? */
920 static struct lm93_data *lm93_update_device(struct device *dev)
922 struct lm93_data *data = dev_get_drvdata(dev);
923 struct i2c_client *client = data->client;
924 const unsigned long interval = HZ + (HZ / 2);
926 mutex_lock(&data->update_lock);
928 if (time_after(jiffies, data->last_updated + interval) ||
931 data->update(data, client);
932 data->last_updated = jiffies;
936 mutex_unlock(&data->update_lock);
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)
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));
955 /* config register */
956 data->config = lm93_read_byte(client, LM93_REG_CONFIG);
958 /* vid1 - vid2: values */
959 for (i = 0; i < 2; i++)
960 data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
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));
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));
972 /* GPIO input state */
973 data->gpi = lm93_read_byte(client, LM93_REG_GPI);
975 /* #PROCHOT override state */
976 data->prochot_override = lm93_read_byte(client,
977 LM93_REG_PROCHOT_OVERRIDE);
979 /* #PROCHOT intervals */
980 data->prochot_interval = lm93_read_byte(client,
981 LM93_REG_PROCHOT_INTERVAL);
983 /* Fan Boost Temperature registers */
984 for (i = 0; i < 4; i++)
985 data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
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);
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);
997 /* #PROCHOT & #VRDHOT PWM Ramp Control register */
998 data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
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);
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));
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)
1015 dev_dbg(&client->dev, "starting device update (block data enabled)\n");
1017 /* in1 - in16: values & limits */
1018 lm93_read_block(client, 3, (u8 *)(data->block3));
1019 lm93_read_block(client, 7, (u8 *)(data->block7));
1021 /* temp1 - temp4: values */
1022 lm93_read_block(client, 2, (u8 *)(data->block2));
1024 /* prochot1 - prochot2: values */
1025 lm93_read_block(client, 4, (u8 *)(data->block4));
1027 /* fan1 - fan4: values & limits */
1028 lm93_read_block(client, 5, (u8 *)(data->block5));
1029 lm93_read_block(client, 8, (u8 *)(data->block8));
1031 /* pmw control registers */
1032 lm93_read_block(client, 9, (u8 *)(data->block9));
1035 lm93_read_block(client, 1, (u8 *)(&data->block1));
1037 /* auto/pwm registers */
1038 lm93_read_block(client, 10, (u8 *)(&data->block10));
1040 lm93_update_client_common(data, client);
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)
1050 dev_dbg(&client->dev, "starting device update (block data disabled)\n");
1052 /* in1 - in16: values & limits */
1053 for (i = 0; i < 16; 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));
1062 /* temp1 - temp4: values */
1063 for (i = 0; i < 4; i++) {
1065 lm93_read_byte(client, LM93_REG_TEMP(i));
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));
1076 /* fan1 - fan4: values & limits */
1077 for (i = 0; i < 4; i++) {
1079 lm93_read_word(client, LM93_REG_FAN(i));
1081 lm93_read_word(client, LM93_REG_FAN_MIN(i));
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));
1093 for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
1095 lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
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));
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));
1110 lm93_update_client_common(data, client);
1113 /* following are the sysfs callback functions */
1114 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
1117 int nr = (to_sensor_dev_attr(attr))->index;
1119 struct lm93_data *data = lm93_update_device(dev);
1120 return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
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);
1140 static ssize_t show_in_min(struct device *dev,
1141 struct device_attribute *attr, char *buf)
1143 int nr = (to_sensor_dev_attr(attr))->index;
1144 struct lm93_data *data = lm93_update_device(dev);
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);
1152 rc = LM93_IN_FROM_REG(nr, data->block7[nr].min);
1154 return sprintf(buf, "%ld\n", rc);
1157 static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
1158 const char *buf, size_t count)
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;
1168 err = kstrtoul(buf, 10, &val);
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]);
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);
1184 mutex_unlock(&data->update_lock);
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);
1221 static ssize_t show_in_max(struct device *dev,
1222 struct device_attribute *attr, char *buf)
1224 int nr = (to_sensor_dev_attr(attr))->index;
1225 struct lm93_data *data = lm93_update_device(dev);
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);
1233 rc = LM93_IN_FROM_REG(nr, data->block7[nr].max);
1235 return sprintf(buf, "%ld\n", rc);
1238 static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
1239 const char *buf, size_t count)
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;
1249 err = kstrtoul(buf, 10, &val);
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]);
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);
1265 mutex_unlock(&data->update_lock);
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);
1302 static ssize_t show_temp(struct device *dev,
1303 struct device_attribute *attr, char *buf)
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]));
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);
1314 static ssize_t show_temp_min(struct device *dev,
1315 struct device_attribute *attr, char *buf)
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));
1322 static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
1323 const char *buf, size_t count)
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;
1331 err = kstrtol(buf, 10, &val);
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);
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);
1349 static ssize_t show_temp_max(struct device *dev,
1350 struct device_attribute *attr, char *buf)
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));
1357 static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
1358 const char *buf, size_t count)
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;
1366 err = kstrtol(buf, 10, &val);
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);
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);
1384 static ssize_t show_temp_auto_base(struct device *dev,
1385 struct device_attribute *attr, char *buf)
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]));
1392 static ssize_t store_temp_auto_base(struct device *dev,
1393 struct device_attribute *attr,
1394 const char *buf, size_t count)
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;
1402 err = kstrtol(buf, 10, &val);
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);
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);
1420 static ssize_t show_temp_auto_boost(struct device *dev,
1421 struct device_attribute *attr, char *buf)
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]));
1428 static ssize_t store_temp_auto_boost(struct device *dev,
1429 struct device_attribute *attr,
1430 const char *buf, size_t count)
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;
1438 err = kstrtol(buf, 10, &val);
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);
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);
1456 static ssize_t show_temp_auto_boost_hyst(struct device *dev,
1457 struct device_attribute *attr,
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));
1467 static ssize_t store_temp_auto_boost_hyst(struct device *dev,
1468 struct device_attribute *attr,
1469 const char *buf, size_t count)
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;
1477 err = kstrtoul(buf, 10, &val);
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);
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);
1503 static ssize_t show_temp_auto_offset(struct device *dev,
1504 struct device_attribute *attr, char *buf)
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],
1516 static ssize_t store_temp_auto_offset(struct device *dev,
1517 struct device_attribute *attr,
1518 const char *buf, size_t count)
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;
1528 err = kstrtoul(buf, 10, &val);
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);
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);
1618 static ssize_t show_temp_auto_pwm_min(struct device *dev,
1619 struct device_attribute *attr, char *buf)
1621 int nr = (to_sensor_dev_attr(attr))->index;
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));
1630 static ssize_t store_temp_auto_pwm_min(struct device *dev,
1631 struct device_attribute *attr,
1632 const char *buf, size_t count)
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;
1641 err = kstrtoul(buf, 10, &val);
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);
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);
1668 static ssize_t show_temp_auto_offset_hyst(struct device *dev,
1669 struct device_attribute *attr, char *buf)
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));
1678 static ssize_t store_temp_auto_offset_hyst(struct device *dev,
1679 struct device_attribute *attr,
1680 const char *buf, size_t count)
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;
1689 err = kstrtoul(buf, 10, &val);
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);
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);
1716 static ssize_t show_fan_input(struct device *dev,
1717 struct device_attribute *attr, char *buf)
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);
1723 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr]));
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);
1731 static ssize_t show_fan_min(struct device *dev,
1732 struct device_attribute *attr, char *buf)
1734 int nr = (to_sensor_dev_attr(attr))->index;
1735 struct lm93_data *data = lm93_update_device(dev);
1737 return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr]));
1740 static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
1741 const char *buf, size_t count)
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;
1749 err = kstrtoul(buf, 10, &val);
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);
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);
1770 * some tedious bit-twiddling here to deal with the register format:
1772 * data->sf_tach_to_pwm: (tach to pwm mapping bits)
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
1777 * data->sfc2: (enable bits)
1779 * bit | 3 | 2 | 1 | 0
1783 static ssize_t show_fan_smart_tach(struct device *dev,
1784 struct device_attribute *attr, char *buf)
1786 int nr = (to_sensor_dev_attr(attr))->index;
1787 struct lm93_data *data = lm93_update_device(dev);
1791 /* extract the relevant mapping */
1792 mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
1794 /* if there's a mapping and it's enabled */
1795 if (mapping && ((data->sfc2 >> nr) & 0x01))
1797 return sprintf(buf, "%ld\n", rc);
1801 * helper function - must grab data->update_lock before calling
1802 * fan is 0-3, indicating fan1-fan4
1804 static void lm93_write_fan_smart_tach(struct i2c_client *client,
1805 struct lm93_data *data, int fan, long value)
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);
1813 /* insert the enable bit and write it out */
1814 data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1816 data->sfc2 |= 1 << fan;
1818 data->sfc2 &= ~(1 << fan);
1819 lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1822 static ssize_t store_fan_smart_tach(struct device *dev,
1823 struct device_attribute *attr,
1824 const char *buf, size_t count)
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;
1832 err = kstrtoul(buf, 10, &val);
1836 mutex_lock(&data->update_lock);
1837 /* sanity test, ignore the write otherwise */
1839 /* can't enable if pwm freq is 22.5KHz */
1841 u8 ctl4 = lm93_read_byte(client,
1842 LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4));
1843 if ((ctl4 & 0x07) == 0)
1846 lm93_write_fan_smart_tach(client, data, nr, val);
1848 mutex_unlock(&data->update_lock);
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);
1861 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
1864 int nr = (to_sensor_dev_attr(attr))->index;
1865 struct lm93_data *data = lm93_update_device(dev);
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);
1879 static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
1880 const char *buf, size_t count)
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;
1889 err = kstrtoul(buf, 10, &val);
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);
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);
1910 static ssize_t show_pwm_enable(struct device *dev,
1911 struct device_attribute *attr, char *buf)
1913 int nr = (to_sensor_dev_attr(attr))->index;
1914 struct lm93_data *data = lm93_update_device(dev);
1918 ctl2 = data->block9[nr][LM93_PWM_CTL2];
1919 if (ctl2 & 0x01) /* manual override enabled ? */
1920 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
1923 return sprintf(buf, "%ld\n", rc);
1926 static ssize_t store_pwm_enable(struct device *dev,
1927 struct device_attribute *attr,
1928 const char *buf, size_t count)
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;
1937 err = kstrtoul(buf, 10, &val);
1941 mutex_lock(&data->update_lock);
1942 ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1946 ctl2 |= 0xF1; /* enable manual override, set PWM to max */
1949 ctl2 |= 0x01; /* enable manual override */
1952 ctl2 &= ~0x01; /* disable manual override */
1955 mutex_unlock(&data->update_lock);
1959 lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1960 mutex_unlock(&data->update_lock);
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);
1969 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
1972 int nr = (to_sensor_dev_attr(attr))->index;
1973 struct lm93_data *data = lm93_update_device(dev);
1976 ctl4 = data->block9[nr][LM93_PWM_CTL4];
1977 return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4));
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
1985 static void lm93_disable_fan_smart_tach(struct i2c_client *client,
1986 struct lm93_data *data, int pwm)
1988 int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
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;
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);
2004 static ssize_t store_pwm_freq(struct device *dev,
2005 struct device_attribute *attr,
2006 const char *buf, size_t count)
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;
2015 err = kstrtoul(buf, 10, &val);
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 */
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);
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);
2036 static ssize_t show_pwm_auto_channels(struct device *dev,
2037 struct device_attribute *attr, char *buf)
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]);
2044 static ssize_t store_pwm_auto_channels(struct device *dev,
2045 struct device_attribute *attr,
2046 const char *buf, size_t count)
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;
2054 err = kstrtoul(buf, 10, &val);
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);
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);
2071 static ssize_t show_pwm_auto_spinup_min(struct device *dev,
2072 struct device_attribute *attr, char *buf)
2074 int nr = (to_sensor_dev_attr(attr))->index;
2075 struct lm93_data *data = lm93_update_device(dev);
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));
2085 static ssize_t store_pwm_auto_spinup_min(struct device *dev,
2086 struct device_attribute *attr,
2087 const char *buf, size_t count)
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;
2096 err = kstrtoul(buf, 10, &val);
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);
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);
2119 static ssize_t show_pwm_auto_spinup_time(struct device *dev,
2120 struct device_attribute *attr, char *buf)
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]));
2128 static ssize_t store_pwm_auto_spinup_time(struct device *dev,
2129 struct device_attribute *attr,
2130 const char *buf, size_t count)
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;
2139 err = kstrtoul(buf, 10, &val);
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);
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);
2159 static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
2160 struct device_attribute *attr, char *buf)
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));
2167 static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
2168 struct device_attribute *attr,
2169 const char *buf, size_t count)
2171 struct lm93_data *data = dev_get_drvdata(dev);
2172 struct i2c_client *client = data->client;
2177 err = kstrtoul(buf, 10, &val);
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);
2189 static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
2190 show_pwm_auto_prochot_ramp,
2191 store_pwm_auto_prochot_ramp);
2193 static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
2194 struct device_attribute *attr, char *buf)
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));
2201 static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
2202 struct device_attribute *attr,
2203 const char *buf, size_t count)
2205 struct lm93_data *data = dev_get_drvdata(dev);
2206 struct i2c_client *client = data->client;
2211 err = kstrtoul(buf, 10, &val);
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);
2223 static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
2224 show_pwm_auto_vrdhot_ramp,
2225 store_pwm_auto_vrdhot_ramp);
2227 static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
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]));
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);
2238 static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
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);
2246 static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
2247 static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
2249 static ssize_t show_prochot_avg(struct device *dev,
2250 struct device_attribute *attr, char *buf)
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);
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);
2260 static ssize_t show_prochot_max(struct device *dev,
2261 struct device_attribute *attr, char *buf)
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]);
2268 static ssize_t store_prochot_max(struct device *dev,
2269 struct device_attribute *attr,
2270 const char *buf, size_t count)
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;
2278 err = kstrtoul(buf, 10, &val);
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);
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);
2295 static const u8 prochot_override_mask[] = { 0x80, 0x40 };
2297 static ssize_t show_prochot_override(struct device *dev,
2298 struct device_attribute *attr, char *buf)
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);
2306 static ssize_t store_prochot_override(struct device *dev,
2307 struct device_attribute *attr,
2308 const char *buf, size_t count)
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;
2316 err = kstrtoul(buf, 10, &val);
2320 mutex_lock(&data->update_lock);
2322 data->prochot_override |= prochot_override_mask[nr];
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);
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);
2336 static ssize_t show_prochot_interval(struct device *dev,
2337 struct device_attribute *attr, char *buf)
2339 int nr = (to_sensor_dev_attr(attr))->index;
2340 struct lm93_data *data = lm93_update_device(dev);
2343 tmp = (data->prochot_interval & 0xf0) >> 4;
2345 tmp = data->prochot_interval & 0x0f;
2346 return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp));
2349 static ssize_t store_prochot_interval(struct device *dev,
2350 struct device_attribute *attr,
2351 const char *buf, size_t count)
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;
2360 err = kstrtoul(buf, 10, &val);
2364 mutex_lock(&data->update_lock);
2365 tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
2367 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
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);
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);
2381 static ssize_t show_prochot_override_duty_cycle(struct device *dev,
2382 struct device_attribute *attr,
2385 struct lm93_data *data = lm93_update_device(dev);
2386 return sprintf(buf, "%d\n", data->prochot_override & 0x0f);
2389 static ssize_t store_prochot_override_duty_cycle(struct device *dev,
2390 struct device_attribute *attr,
2391 const char *buf, size_t count)
2393 struct lm93_data *data = dev_get_drvdata(dev);
2394 struct i2c_client *client = data->client;
2398 err = kstrtoul(buf, 10, &val);
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);
2411 static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
2412 show_prochot_override_duty_cycle,
2413 store_prochot_override_duty_cycle);
2415 static ssize_t show_prochot_short(struct device *dev,
2416 struct device_attribute *attr, char *buf)
2418 struct lm93_data *data = lm93_update_device(dev);
2419 return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);
2422 static ssize_t store_prochot_short(struct device *dev,
2423 struct device_attribute *attr,
2424 const char *buf, size_t count)
2426 struct lm93_data *data = dev_get_drvdata(dev);
2427 struct i2c_client *client = data->client;
2431 err = kstrtoul(buf, 10, &val);
2435 mutex_lock(&data->update_lock);
2437 data->config |= 0x10;
2439 data->config &= ~0x10;
2440 lm93_write_byte(client, LM93_REG_CONFIG, data->config);
2441 mutex_unlock(&data->update_lock);
2445 static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
2446 show_prochot_short, store_prochot_short);
2448 static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
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);
2457 static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
2458 static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
2460 static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
2463 struct lm93_data *data = lm93_update_device(dev);
2464 return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));
2467 static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
2469 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
2472 struct lm93_data *data = lm93_update_device(dev);
2473 return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));
2476 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
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,
2634 ATTRIBUTE_GROUPS(lm93);
2636 static void lm93_init_client(struct i2c_client *client)
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));
2647 /* enable #ALERT pin */
2648 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2649 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
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);
2655 /* set sleep state to S0 */
2656 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
2658 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
2659 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
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);
2666 /* start monitoring */
2667 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2668 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
2670 /* spin until ready */
2671 for (i = 0; i < 20; i++) {
2673 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
2677 dev_warn(&client->dev,
2678 "timed out waiting for sensor chip to signal ready!\n");
2681 /* Return 0 if detection is successful, -ENODEV otherwise */
2682 static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
2684 struct i2c_adapter *adapter = client->adapter;
2688 if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2692 mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2694 dev_dbg(&adapter->dev,
2695 "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2699 ver = lm93_read_byte(client, LM93_REG_VER);
2702 case LM93_MFR_ID_PROTOTYPE:
2707 case LM94_MFR_ID_PROTOTYPE:
2711 dev_dbg(&adapter->dev,
2712 "detect failed, bad version id 0x%02x!\n", ver);
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),
2724 static int lm93_probe(struct i2c_client *client,
2725 const struct i2c_device_id *id)
2727 struct device *dev = &client->dev;
2728 struct lm93_data *data;
2729 struct device *hwmon_dev;
2731 void (*update)(struct lm93_data *, struct i2c_client *);
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) &&
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;
2743 dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n");
2747 data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL);
2752 data->client = client;
2753 data->update = update;
2754 mutex_init(&data->update_lock);
2756 /* initialize the chip */
2757 lm93_init_client(client);
2759 hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
2762 return PTR_ERR_OR_ZERO(hwmon_dev);
2765 static const struct i2c_device_id lm93_id[] = {
2770 MODULE_DEVICE_TABLE(i2c, lm93_id);
2772 static struct i2c_driver lm93_driver = {
2773 .class = I2C_CLASS_HWMON,
2777 .probe = lm93_probe,
2778 .id_table = lm93_id,
2779 .detect = lm93_detect,
2780 .address_list = normal_i2c,
2783 module_i2c_driver(lm93_driver);
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");